Merge branch 'master' into lightgolint2

.travis.yml

@@ -31,7 +31,6 @@ matrix:
       script:
         - unset -f cd # workaround for https://github.com/travis-ci/travis-ci/issues/8703
         - brew update
-        - brew install caskroom/cask/brew-cask
         - brew cask install osxfuse
         - go run build/ci.go install
         - go run build/ci.go test -coverage $TEST_PACKAGES

VERSION

@@ -1 +1 @@
-1.8.7
+1.8.8

accounts/abi/bind/backends/simulated.go

@@ -31,6 +31,7 @@ import (
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/bloombits"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -159,7 +160,7 @@ func (b *SimulatedBackend) StorageAt(ctx context.Context, contract common.Addres
 
 // TransactionReceipt returns the receipt of a transaction.
 func (b *SimulatedBackend) TransactionReceipt(ctx context.Context, txHash common.Hash) (*types.Receipt, error) {
-	receipt, _, _, _ := core.GetReceipt(b.database, txHash)
+	receipt, _, _, _ := rawdb.ReadReceipt(b.database, txHash)
 	return receipt, nil
 }
 
@@ -430,11 +431,19 @@ func (fb *filterBackend) HeaderByNumber(ctx context.Context, block rpc.BlockNumb
 }
 
 func (fb *filterBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
-	return core.GetBlockReceipts(fb.db, hash, core.GetBlockNumber(fb.db, hash)), nil
+	number := rawdb.ReadHeaderNumber(fb.db, hash)
+	if number == nil {
+		return nil, nil
+	}
+	return rawdb.ReadReceipts(fb.db, hash, *number), nil
 }
 
 func (fb *filterBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error) {
-	receipts := core.GetBlockReceipts(fb.db, hash, core.GetBlockNumber(fb.db, hash))
+	number := rawdb.ReadHeaderNumber(fb.db, hash)
+	if number == nil {
+		return nil, nil
+	}
+	receipts := rawdb.ReadReceipts(fb.db, hash, *number)
 	if receipts == nil {
 		return nil, nil
 	}

accounts/abi/event.go

@@ -33,15 +33,15 @@ type Event struct {
 	Inputs    Arguments
 }
 
-func (event Event) String() string {
+func (e Event) String() string {
-	inputs := make([]string, len(event.Inputs))
+	inputs := make([]string, len(e.Inputs))
-	for i, input := range event.Inputs {
+	for i, input := range e.Inputs {
 		inputs[i] = fmt.Sprintf("%v %v", input.Name, input.Type)
 		if input.Indexed {
 			inputs[i] = fmt.Sprintf("%v indexed %v", input.Name, input.Type)
 		}
 	}
-	return fmt.Sprintf("event %v(%v)", event.Name, strings.Join(inputs, ", "))
+	return fmt.Sprintf("e %v(%v)", e.Name, strings.Join(inputs, ", "))
 }
 
 // Id returns the canonical representation of the event's signature used by the

accounts/keystore/keystore_passphrase.go

@@ -108,9 +108,8 @@ func (ks keyStorePassphrase) StoreKey(filename string, key *Key, auth string) er
 func (ks keyStorePassphrase) JoinPath(filename string) string {
 	if filepath.IsAbs(filename) {
 		return filename
-	} else {
-		return filepath.Join(ks.keysDirPath, filename)
 	}
+	return filepath.Join(ks.keysDirPath, filename)
 }
 
 // EncryptKey encrypts a key using the specified scrypt parameters into a json

accounts/keystore/keystore_plain.go

@@ -56,7 +56,6 @@ func (ks keyStorePlain) StoreKey(filename string, key *Key, auth string) error {
 func (ks keyStorePlain) JoinPath(filename string) string {
 	if filepath.IsAbs(filename) {
 		return filename
-	} else {
+	}
 	return filepath.Join(ks.keysDirPath, filename)
 }
-}

build/ci.go

@@ -731,7 +731,7 @@ func doAndroidArchive(cmdline []string) {
 	// Build the Android archive and Maven resources
 	build.MustRun(goTool("get", "golang.org/x/mobile/cmd/gomobile", "golang.org/x/mobile/cmd/gobind"))
 	build.MustRun(gomobileTool("init", "--ndk", os.Getenv("ANDROID_NDK")))
-	build.MustRun(gomobileTool("bind", "--target", "android", "--javapkg", "org.ethereum", "-v", "github.com/ethereum/go-ethereum/mobile"))
+	build.MustRun(gomobileTool("bind", "-ldflags", "-s -w", "--target", "android", "--javapkg", "org.ethereum", "-v", "github.com/ethereum/go-ethereum/mobile"))
 
 	if *local {
 		// If we're building locally, copy bundle to build dir and skip Maven
@@ -852,7 +852,7 @@ func doXCodeFramework(cmdline []string) {
 	// Build the iOS XCode framework
 	build.MustRun(goTool("get", "golang.org/x/mobile/cmd/gomobile", "golang.org/x/mobile/cmd/gobind"))
 	build.MustRun(gomobileTool("init"))
-	bind := gomobileTool("bind", "--target", "ios", "--tags", "ios", "-v", "github.com/ethereum/go-ethereum/mobile")
+	bind := gomobileTool("bind", "-ldflags", "-s -w", "--target", "ios", "--tags", "ios", "-v", "github.com/ethereum/go-ethereum/mobile")
 
 	if *local {
 		// If we're building locally, use the build folder and stop afterwards

cmd/clef/README.md

@@ -12,6 +12,11 @@ synchronised with the chain or a particular Ethereum node that has no built-in (
 Clef can run as a daemon on the same machine, or off a usb-stick like [usb armory](https://inversepath.com/usbarmory),
 or a separate VM in a [QubesOS](https://www.qubes-os.org/) type os setup.
 
+Check out 
+
+* the [tutorial](tutorial.md) for some concrete examples on how the signer works.
+* the [setup docs](docs/setup.md) for some information on how to configure it to work on QubesOS or USBArmory. 
+
 
 ## Command line flags
 Clef accepts the following command line options:
@@ -49,7 +54,6 @@ Example:
 signer -keystore /my/keystore -chainid 4
 ```
 
-Check out the [tutorial](tutorial.md) for some concrete examples on how the signer works.
 
 ## Security model
 
@@ -862,3 +866,12 @@ A UI should conform to the following rules.
 along with the UI.
 
 
+### UI Implementations 
+
+There are a couple of implementation for a UI. We'll try to keep this list up to date. 
+
+| Name | Repo | UI type| No external resources| Blocky support| Verifies permissions | Hash information | No secondary storage | Statically linked| Can modify parameters|
+| ---- | ---- | -------| ---- | ---- | ---- |---- | ---- | ---- | ---- |
+| QtSigner| https://github.com/holiman/qtsigner/| Python3/QT-based| :+1:| :+1:| :+1:| :+1:| :+1:| :x: |  :+1: (partially)|
+| GtkSigner| https://github.com/holiman/gtksigner| Python3/GTK-based| :+1:| :x:| :x:| :+1:| :+1:| :x: |  :x: |
+| Frame | https://github.com/floating/frame/commits/go-signer| Electron-based| :x:| :x:| :x:| :x:| ?| :x: |  :x: |

cmd/clef/docs/qubes/qubes-client.py

@@ -0,0 +1,23 @@
+"""
+This implements a dispatcher which listens to localhost:8550, and proxies
+requests via qrexec to the service qubes.EthSign on a target domain
+"""
+
+import http.server
+import socketserver,subprocess
+
+PORT=8550
+TARGET_DOMAIN= 'debian-work'
+
+class Dispatcher(http.server.BaseHTTPRequestHandler):
+    def do_POST(self):
+        post_data = self.rfile.read(int(self.headers['Content-Length']))
+        p = subprocess.Popen(['/usr/bin/qrexec-client-vm',TARGET_DOMAIN,'qubes.Clefsign'],stdin=subprocess.PIPE, stdout=subprocess.PIPE)
+        output = p.communicate(post_data)[0]
+        self.wfile.write(output)
+
+
+with socketserver.TCPServer(("",PORT), Dispatcher) as httpd:
+    print("Serving at port", PORT)
+    httpd.serve_forever()
+

cmd/clef/docs/qubes/qubes.Clefsign

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+SIGNER_BIN="/home/user/tools/clef/clef"
+SIGNER_CMD="/home/user/tools/gtksigner/gtkui.py -s $SIGNER_BIN"
+
+# Start clef if not already started
+if [ ! -S /home/user/.clef/clef.ipc ]; then
+	$SIGNER_CMD &
+	sleep 1
+fi
+
+# Should be started by now
+if [ -S /home/user/.clef/clef.ipc ]; then
+    # Post incoming request to HTTP channel
+	curl -H "Content-Type: application/json" -X POST -d @- http://localhost:8550 2>/dev/null
+fi

cmd/clef/docs/setup.md

@@ -0,0 +1,198 @@
+# Setting up Clef
+
+This document describes how Clef can be used in a more secure manner than executing it from your everyday laptop, 
+in order to ensure that the keys remain safe in the event that your computer should get compromised. 
+
+## Qubes OS
+
+
+### Background 
+
+The Qubes operating system is based around virtual machines (qubes), where a set of virtual machines are configured, typically for 
+different purposes such as:
+
+- personal
+   - Your personal email, browsing etc
+- work
+  - Work email etc
+- vault
+  - a VM without network access, where gpg-keys and/or keepass credentials are stored. 
+
+A couple of dedicated virtual machines handle externalities:
+
+- sys-net provides networking to all other (network-enabled) machines
+- sys-firewall handles firewall rules
+- sys-usb handles USB devices, and can map usb-devices to certain qubes.
+
+The goal of this document is to describe how we can set up clef to provide secure transaction
+signing from a `vault` vm, to another networked qube which runs Dapps.
+
+### Setup
+
+There are two ways that this can be achieved: integrated via Qubes or integrated via networking. 
+
+
+#### 1. Qubes Integrated
+
+Qubes provdes a facility for inter-qubes communication via `qrexec`. A qube can request to make a cross-qube RPC request 
+to another qube. The OS then asks the user if the call is permitted. 
+
+![Example](qubes/qrexec-example.png)
+
+A policy-file can be created to allow such interaction. On the `target` domain, a service is invoked which can read the
+`stdin` from the `client` qube. 
+
+This is how [Split GPG](https://www.qubes-os.org/doc/split-gpg/) is implemented. We can set up Clef the same way:
+
+##### Server
+
+![Clef via qrexec](qubes/clef_qubes_qrexec.png)
+
+On the `target` qubes, we need to define the rpc service.
+
+[qubes.Clefsign](qubes/qubes.Clefsign):
+
+```bash
+#!/bin/bash
+
+SIGNER_BIN="/home/user/tools/clef/clef"
+SIGNER_CMD="/home/user/tools/gtksigner/gtkui.py -s $SIGNER_BIN"
+
+# Start clef if not already started
+if [ ! -S /home/user/.clef/clef.ipc ]; then
+	$SIGNER_CMD &
+	sleep 1
+fi
+
+# Should be started by now
+if [ -S /home/user/.clef/clef.ipc ]; then
+    # Post incoming request to HTTP channel
+	curl -H "Content-Type: application/json" -X POST -d @- http://localhost:8550 2>/dev/null
+fi
+
+```
+This RPC service is not complete (see notes about HTTP headers below), but works as a proof-of-concept. 
+It will forward the data received on `stdin` (forwarded by the OS) to Clef's HTTP channel.  
+
+It would have been possible to send data directly to the `/home/user/.clef/.clef.ipc` 
+socket via e.g `nc -U /home/user/.clef/clef.ipc`, but the reason for sending the request 
+data over `HTTP` instead of `IPC` is that we want the ability to forward `HTTP` headers.
+
+To enable the service:
+
+``` bash
+sudo cp qubes.Clefsign /etc/qubes-rpc/
+sudo chmod +x /etc/qubes-rpc/ qubes.Clefsign
+```
+
+This setup uses [gtksigner](https://github.com/holiman/gtksigner), which is a very minimal GTK-based UI that works well 
+with minimal requirements. 
+
+##### Client
+
+
+On the `client` qube, we need to create a listener which will receive the request from the Dapp, and proxy it. 
+
+
+[qubes-client.py](qubes/client/qubes-client.py):
+
+```python
+
+"""
+This implements a dispatcher which listens to localhost:8550, and proxies
+requests via qrexec to the service qubes.EthSign on a target domain
+"""
+
+import http.server
+import socketserver,subprocess
+
+PORT=8550
+TARGET_DOMAIN= 'debian-work'
+
+class Dispatcher(http.server.BaseHTTPRequestHandler):
+    def do_POST(self):
+        post_data = self.rfile.read(int(self.headers['Content-Length']))
+        p = subprocess.Popen(['/usr/bin/qrexec-client-vm',TARGET_DOMAIN,'qubes.Clefsign'],stdin=subprocess.PIPE, stdout=subprocess.PIPE)
+        output = p.communicate(post_data)[0]
+        self.wfile.write(output)
+
+
+with socketserver.TCPServer(("",PORT), Dispatcher) as httpd:
+    print("Serving at port", PORT)
+    httpd.serve_forever()
+
+
+```
+
+#### Testing
+
+To test the flow, if we have set up `debian-work` as the `target`, we can do
+ 
+```bash
+$ cat newaccnt.json 
+{ "id": 0, "jsonrpc": "2.0","method": "account_new","params": []}
+
+$ cat newaccnt.json| qrexec-client-vm debian-work qubes.Clefsign
+```
+
+This should pop up first a dialog to allow the IPC call:
+
+![one](qubes/qubes_newaccount-1.png)
+
+Followed by a GTK-dialog to approve the operation
+
+![two](qubes/qubes_newaccount-2.png)
+
+To test the full flow, we use the client wrapper. Start it on the `client` qube:
+```
+[user@work qubes]$ python3 qubes-client.py 
+```
+
+Make the request over http (`client` qube):
+```
+[user@work clef]$ cat newaccnt.json | curl -X POST -d @- http://localhost:8550
+```
+And it should show the same popups again. 
+
+##### Pros and cons
+
+The benefits of this setup are:
+
+- This is the qubes-os intended model for inter-qube communication,
+- and thus benefits from qubes-os dialogs and policies for user approval
+
+However, it comes with a couple of drawbacks:
+
+- The `qubes-gpg-client` must forward the http request via RPC to the `target` qube. When doing so, the proxy
+  will either drop important headers, or replace them. 
+  - The `Host` header is most likely `localhost` 
+  - The `Origin` header must be forwarded
+  - Information about the remote ip must be added as a `X-Forwarded-For`. However, Clef cannot always trust an `XFF` header, 
+  since malicious clients may lie about `XFF` in order to fool the http server into believing it comes from another address.
+- Even with a policy in place to allow rpc-calls between `caller` and `target`, there will be several popups:
+  - One qubes-specific where the user specifies the `target` vm
+  - One clef-specific to approve the transaction
+  
+
+#### 2. Network integrated
+
+The second way to set up Clef on a qubes system is to allow networking, and have Clef listen to a port which is accessible
+form other qubes. 
+
+![Clef via http](qubes/clef_qubes_http.png)
+
+
+
+
+## USBArmory
+
+The [USB armory](https://inversepath.com/usbarmory) is an open source hardware design with an 800 Mhz ARM processor. It is a pocket-size
+computer. When inserted into a laptop, it identifies itself as a USB network interface, basically adding another network
+to your computer. Over this new network interface, you can SSH into the device. 
+
+Running Clef off a USB armory means that you can use the armory as a very versatile offline computer, which only
+ever connects to a local network between your computer and the device itself.
+
+Needless to say, the while this model should be fairly secure against remote attacks, an attacker with physical access
+to the USB Armory would trivially be able to extract the contents of the device filesystem. 
+

cmd/evm/runner.go

@@ -21,12 +21,12 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
+	"math/big"
 	"os"
+	goruntime "runtime"
 	"runtime/pprof"
 	"time"
 
-	goruntime "runtime"
-
 	"github.com/ethereum/go-ethereum/cmd/evm/internal/compiler"
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/common"
@@ -86,6 +86,7 @@ func runCmd(ctx *cli.Context) error {
 		chainConfig *params.ChainConfig
 		sender      = common.BytesToAddress([]byte("sender"))
 		receiver    = common.BytesToAddress([]byte("receiver"))
+		blockNumber uint64
 	)
 	if ctx.GlobalBool(MachineFlag.Name) {
 		tracer = NewJSONLogger(logconfig, os.Stdout)
@@ -101,6 +102,7 @@ func runCmd(ctx *cli.Context) error {
 		genesis := gen.ToBlock(db)
 		statedb, _ = state.New(genesis.Root(), state.NewDatabase(db))
 		chainConfig = gen.Config
+		blockNumber = gen.Number
 	} else {
 		db, _ := ethdb.NewMemDatabase()
 		statedb, _ = state.New(common.Hash{}, state.NewDatabase(db))
@@ -161,6 +163,7 @@ func runCmd(ctx *cli.Context) error {
 		GasLimit:    initialGas,
 		GasPrice:    utils.GlobalBig(ctx, PriceFlag.Name),
 		Value:       utils.GlobalBig(ctx, ValueFlag.Name),
+		BlockNumber: new(big.Int).SetUint64(blockNumber),
 		EVMConfig: vm.Config{
 			Tracer: tracer,
 			Debug:  ctx.GlobalBool(DebugFlag.Name) || ctx.GlobalBool(MachineFlag.Name),

cmd/geth/dao_test.go

@@ -24,7 +24,7 @@ import (
 	"testing"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/params"
 )
@@ -131,8 +131,8 @@ func testDAOForkBlockNewChain(t *testing.T, test int, genesis string, expectBloc
 	if genesis != "" {
 		genesisHash = daoGenesisHash
 	}
-	config, err := core.GetChainConfig(db, genesisHash)
+	config := rawdb.ReadChainConfig(db, genesisHash)
-	if err != nil {
+	if config == nil {
 		t.Errorf("test %d: failed to retrieve chain config: %v", test, err)
 		return // we want to return here, the other checks can't make it past this point (nil panic).
 	}

cmd/utils/cmd.go

@@ -29,6 +29,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -271,15 +272,13 @@ func ImportPreimages(db *ethdb.LDBDatabase, fn string) error {
 		// Accumulate the preimages and flush when enough ws gathered
 		preimages[crypto.Keccak256Hash(blob)] = common.CopyBytes(blob)
 		if len(preimages) > 1024 {
-			if err := core.WritePreimages(db, 0, preimages); err != nil {
+			rawdb.WritePreimages(db, 0, preimages)
-				return err
-			}
 			preimages = make(map[common.Hash][]byte)
 		}
 	}
 	// Flush the last batch preimage data
 	if len(preimages) > 0 {
-		return core.WritePreimages(db, 0, preimages)
+		rawdb.WritePreimages(db, 0, preimages)
 	}
 	return nil
 }

cmd/utils/flags.go

@@ -158,11 +158,11 @@ var (
 	}
 	FastSyncFlag = cli.BoolFlag{
 		Name:  "fast",
-		Usage: "Enable fast syncing through state downloads",
+		Usage: "Enable fast syncing through state downloads (replaced by --syncmode)",
 	}
 	LightModeFlag = cli.BoolFlag{
 		Name:  "light",
-		Usage: "Enable light client mode",
+		Usage: "Enable light client mode (replaced by --syncmode)",
 	}
 	defaultSyncMode = eth.DefaultConfig.SyncMode
 	SyncModeFlag    = TextMarshalerFlag{

cmd/wnode/main.go

@@ -271,7 +271,9 @@ func initialize() {
 
 	if *mailServerMode {
 		shh.RegisterServer(&mailServer)
-		mailServer.Init(shh, *argDBPath, msPassword, *argServerPoW)
+		if err := mailServer.Init(shh, *argDBPath, msPassword, *argServerPoW); err != nil {
+			utils.Fatalf("Failed to init MailServer: %s", err)
+		}
 	}
 
 	server = &p2p.Server{

common/bytes.go

@@ -87,16 +87,14 @@ func Hex2BytesFixed(str string, flen int) []byte {
 	h, _ := hex.DecodeString(str)
 	if len(h) == flen {
 		return h
-	} else {
+	}
 	if len(h) > flen {
 		return h[len(h)-flen:]
-		} else {
+	}
 	hh := make([]byte, flen)
 	copy(hh[flen-len(h):flen], h[:])
 	return hh
 }
-	}
-}
 
 func RightPadBytes(slice []byte, l int) []byte {
 	if l <= len(slice) {

consensus/clique/snapshot_test.go

@@ -24,6 +24,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -81,7 +82,7 @@ func (r *testerChainReader) GetBlock(common.Hash, uint64) *types.Block   { panic
 func (r *testerChainReader) GetHeaderByHash(common.Hash) *types.Header   { panic("not supported") }
 func (r *testerChainReader) GetHeaderByNumber(number uint64) *types.Header {
 	if number == 0 {
-		return core.GetHeader(r.db, core.GetCanonicalHash(r.db, 0), 0)
+		return rawdb.ReadHeader(r.db, rawdb.ReadCanonicalHash(r.db, 0), 0)
 	}
 	panic("not supported")
 }

consensus/ethash/ethash.go

@@ -156,7 +156,7 @@ type lru struct {
 	futureItem interface{}
 }
 
-// newlru create a new least-recently-used cache for ither the verification caches
+// newlru create a new least-recently-used cache for either the verification caches
 // or the mining datasets.
 func newlru(what string, maxItems int, new func(epoch uint64) interface{}) *lru {
 	if maxItems <= 0 {

core/bench_test.go

@@ -26,6 +26,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
@@ -234,13 +235,15 @@ func makeChainForBench(db ethdb.Database, full bool, count uint64) {
 			ReceiptHash: types.EmptyRootHash,
 		}
 		hash = header.Hash()
-		WriteHeader(db, header)
+
-		WriteCanonicalHash(db, hash, n)
+		rawdb.WriteHeader(db, header)
-		WriteTd(db, hash, n, big.NewInt(int64(n+1)))
+		rawdb.WriteCanonicalHash(db, hash, n)
+		rawdb.WriteTd(db, hash, n, big.NewInt(int64(n+1)))
+
 		if full || n == 0 {
 			block := types.NewBlockWithHeader(header)
-			WriteBody(db, hash, n, block.Body())
+			rawdb.WriteBody(db, hash, n, block.Body())
-			WriteBlockReceipts(db, hash, n, nil)
+			rawdb.WriteReceipts(db, hash, n, nil)
 		}
 	}
 }
@@ -292,11 +295,10 @@ func benchReadChain(b *testing.B, full bool, count uint64) {
 			header := chain.GetHeaderByNumber(n)
 			if full {
 				hash := header.Hash()
-				GetBody(db, hash, n)
+				rawdb.ReadBody(db, hash, n)
-				GetBlockReceipts(db, hash, n)
+				rawdb.ReadReceipts(db, hash, n)
 			}
 		}
-
 		chain.Stop()
 		db.Close()
 	}

core/blockchain.go

@@ -30,6 +30,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/mclock"
 	"github.com/ethereum/go-ethereum/consensus"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -202,7 +203,7 @@ func (bc *BlockChain) getProcInterrupt() bool {
 // assumes that the chain manager mutex is held.
 func (bc *BlockChain) loadLastState() error {
 	// Restore the last known head block
-	head := GetHeadBlockHash(bc.db)
+	head := rawdb.ReadHeadBlockHash(bc.db)
 	if head == (common.Hash{}) {
 		// Corrupt or empty database, init from scratch
 		log.Warn("Empty database, resetting chain")
@@ -228,7 +229,7 @@ func (bc *BlockChain) loadLastState() error {
 
 	// Restore the last known head header
 	currentHeader := currentBlock.Header()
-	if head := GetHeadHeaderHash(bc.db); head != (common.Hash{}) {
+	if head := rawdb.ReadHeadHeaderHash(bc.db); head != (common.Hash{}) {
 		if header := bc.GetHeaderByHash(head); header != nil {
 			currentHeader = header
 		}
@@ -237,7 +238,7 @@ func (bc *BlockChain) loadLastState() error {
 
 	// Restore the last known head fast block
 	bc.currentFastBlock.Store(currentBlock)
-	if head := GetHeadFastBlockHash(bc.db); head != (common.Hash{}) {
+	if head := rawdb.ReadHeadFastBlockHash(bc.db); head != (common.Hash{}) {
 		if block := bc.GetBlockByHash(head); block != nil {
 			bc.currentFastBlock.Store(block)
 		}
@@ -269,7 +270,7 @@ func (bc *BlockChain) SetHead(head uint64) error {
 
 	// Rewind the header chain, deleting all block bodies until then
 	delFn := func(hash common.Hash, num uint64) {
-		DeleteBody(bc.db, hash, num)
+		rawdb.DeleteBody(bc.db, hash, num)
 	}
 	bc.hc.SetHead(head, delFn)
 	currentHeader := bc.hc.CurrentHeader()
@@ -303,12 +304,10 @@ func (bc *BlockChain) SetHead(head uint64) error {
 	}
 	currentBlock := bc.CurrentBlock()
 	currentFastBlock := bc.CurrentFastBlock()
-	if err := WriteHeadBlockHash(bc.db, currentBlock.Hash()); err != nil {
+
-		log.Crit("Failed to reset head full block", "err", err)
+	rawdb.WriteHeadBlockHash(bc.db, currentBlock.Hash())
-	}
+	rawdb.WriteHeadFastBlockHash(bc.db, currentFastBlock.Hash())
-	if err := WriteHeadFastBlockHash(bc.db, currentFastBlock.Hash()); err != nil {
+
-		log.Crit("Failed to reset head fast block", "err", err)
-	}
 	return bc.loadLastState()
 }
 
@@ -406,9 +405,8 @@ func (bc *BlockChain) ResetWithGenesisBlock(genesis *types.Block) error {
 	if err := bc.hc.WriteTd(genesis.Hash(), genesis.NumberU64(), genesis.Difficulty()); err != nil {
 		log.Crit("Failed to write genesis block TD", "err", err)
 	}
-	if err := WriteBlock(bc.db, genesis); err != nil {
+	rawdb.WriteBlock(bc.db, genesis)
-		log.Crit("Failed to write genesis block", "err", err)
+
-	}
 	bc.genesisBlock = genesis
 	bc.insert(bc.genesisBlock)
 	bc.currentBlock.Store(bc.genesisBlock)
@@ -474,24 +472,19 @@ func (bc *BlockChain) ExportN(w io.Writer, first uint64, last uint64) error {
 // Note, this function assumes that the `mu` mutex is held!
 func (bc *BlockChain) insert(block *types.Block) {
 	// If the block is on a side chain or an unknown one, force other heads onto it too
-	updateHeads := GetCanonicalHash(bc.db, block.NumberU64()) != block.Hash()
+	updateHeads := rawdb.ReadCanonicalHash(bc.db, block.NumberU64()) != block.Hash()
 
 	// Add the block to the canonical chain number scheme and mark as the head
-	if err := WriteCanonicalHash(bc.db, block.Hash(), block.NumberU64()); err != nil {
+	rawdb.WriteCanonicalHash(bc.db, block.Hash(), block.NumberU64())
-		log.Crit("Failed to insert block number", "err", err)
+	rawdb.WriteHeadBlockHash(bc.db, block.Hash())
-	}
+
-	if err := WriteHeadBlockHash(bc.db, block.Hash()); err != nil {
-		log.Crit("Failed to insert head block hash", "err", err)
-	}
 	bc.currentBlock.Store(block)
 
 	// If the block is better than our head or is on a different chain, force update heads
 	if updateHeads {
 		bc.hc.SetCurrentHeader(block.Header())
+		rawdb.WriteHeadFastBlockHash(bc.db, block.Hash())
 
-		if err := WriteHeadFastBlockHash(bc.db, block.Hash()); err != nil {
-			log.Crit("Failed to insert head fast block hash", "err", err)
-		}
 		bc.currentFastBlock.Store(block)
 	}
 }
@@ -509,7 +502,11 @@ func (bc *BlockChain) GetBody(hash common.Hash) *types.Body {
 		body := cached.(*types.Body)
 		return body
 	}
-	body := GetBody(bc.db, hash, bc.hc.GetBlockNumber(hash))
+	number := bc.hc.GetBlockNumber(hash)
+	if number == nil {
+		return nil
+	}
+	body := rawdb.ReadBody(bc.db, hash, *number)
 	if body == nil {
 		return nil
 	}
@@ -525,7 +522,11 @@ func (bc *BlockChain) GetBodyRLP(hash common.Hash) rlp.RawValue {
 	if cached, ok := bc.bodyRLPCache.Get(hash); ok {
 		return cached.(rlp.RawValue)
 	}
-	body := GetBodyRLP(bc.db, hash, bc.hc.GetBlockNumber(hash))
+	number := bc.hc.GetBlockNumber(hash)
+	if number == nil {
+		return nil
+	}
+	body := rawdb.ReadBodyRLP(bc.db, hash, *number)
 	if len(body) == 0 {
 		return nil
 	}
@@ -539,8 +540,7 @@ func (bc *BlockChain) HasBlock(hash common.Hash, number uint64) bool {
 	if bc.blockCache.Contains(hash) {
 		return true
 	}
-	ok, _ := bc.db.Has(blockBodyKey(hash, number))
+	return rawdb.HasBody(bc.db, hash, number)
-	return ok
 }
 
 // HasState checks if state trie is fully present in the database or not.
@@ -567,7 +567,7 @@ func (bc *BlockChain) GetBlock(hash common.Hash, number uint64) *types.Block {
 	if block, ok := bc.blockCache.Get(hash); ok {
 		return block.(*types.Block)
 	}
-	block := GetBlock(bc.db, hash, number)
+	block := rawdb.ReadBlock(bc.db, hash, number)
 	if block == nil {
 		return nil
 	}
@@ -578,13 +578,17 @@ func (bc *BlockChain) GetBlock(hash common.Hash, number uint64) *types.Block {
 
 // GetBlockByHash retrieves a block from the database by hash, caching it if found.
 func (bc *BlockChain) GetBlockByHash(hash common.Hash) *types.Block {
-	return bc.GetBlock(hash, bc.hc.GetBlockNumber(hash))
+	number := bc.hc.GetBlockNumber(hash)
+	if number == nil {
+		return nil
+	}
+	return bc.GetBlock(hash, *number)
 }
 
 // GetBlockByNumber retrieves a block from the database by number, caching it
 // (associated with its hash) if found.
 func (bc *BlockChain) GetBlockByNumber(number uint64) *types.Block {
-	hash := GetCanonicalHash(bc.db, number)
+	hash := rawdb.ReadCanonicalHash(bc.db, number)
 	if hash == (common.Hash{}) {
 		return nil
 	}
@@ -593,21 +597,28 @@ func (bc *BlockChain) GetBlockByNumber(number uint64) *types.Block {
 
 // GetReceiptsByHash retrieves the receipts for all transactions in a given block.
 func (bc *BlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts {
-	return GetBlockReceipts(bc.db, hash, GetBlockNumber(bc.db, hash))
+	number := rawdb.ReadHeaderNumber(bc.db, hash)
+	if number == nil {
+		return nil
+	}
+	return rawdb.ReadReceipts(bc.db, hash, *number)
 }
 
 // GetBlocksFromHash returns the block corresponding to hash and up to n-1 ancestors.
 // [deprecated by eth/62]
 func (bc *BlockChain) GetBlocksFromHash(hash common.Hash, n int) (blocks []*types.Block) {
 	number := bc.hc.GetBlockNumber(hash)
+	if number == nil {
+		return nil
+	}
 	for i := 0; i < n; i++ {
-		block := bc.GetBlock(hash, number)
+		block := bc.GetBlock(hash, *number)
 		if block == nil {
 			break
 		}
 		blocks = append(blocks, block)
 		hash = block.ParentHash()
-		number--
+		*number--
 	}
 	return
 }
@@ -712,12 +723,12 @@ func (bc *BlockChain) Rollback(chain []common.Hash) {
 		if currentFastBlock := bc.CurrentFastBlock(); currentFastBlock.Hash() == hash {
 			newFastBlock := bc.GetBlock(currentFastBlock.ParentHash(), currentFastBlock.NumberU64()-1)
 			bc.currentFastBlock.Store(newFastBlock)
-			WriteHeadFastBlockHash(bc.db, newFastBlock.Hash())
+			rawdb.WriteHeadFastBlockHash(bc.db, newFastBlock.Hash())
 		}
 		if currentBlock := bc.CurrentBlock(); currentBlock.Hash() == hash {
 			newBlock := bc.GetBlock(currentBlock.ParentHash(), currentBlock.NumberU64()-1)
 			bc.currentBlock.Store(newBlock)
-			WriteHeadBlockHash(bc.db, newBlock.Hash())
+			rawdb.WriteHeadBlockHash(bc.db, newBlock.Hash())
 		}
 	}
 }
@@ -802,15 +813,10 @@ func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain [
 			return i, fmt.Errorf("failed to set receipts data: %v", err)
 		}
 		// Write all the data out into the database
-		if err := WriteBody(batch, block.Hash(), block.NumberU64(), block.Body()); err != nil {
+		rawdb.WriteBody(batch, block.Hash(), block.NumberU64(), block.Body())
-			return i, fmt.Errorf("failed to write block body: %v", err)
+		rawdb.WriteReceipts(batch, block.Hash(), block.NumberU64(), receipts)
-		}
+		rawdb.WriteTxLookupEntries(batch, block)
-		if err := WriteBlockReceipts(batch, block.Hash(), block.NumberU64(), receipts); err != nil {
+
-			return i, fmt.Errorf("failed to write block receipts: %v", err)
-		}
-		if err := WriteTxLookupEntries(batch, block); err != nil {
-			return i, fmt.Errorf("failed to write lookup metadata: %v", err)
-		}
 		stats.processed++
 
 		if batch.ValueSize() >= ethdb.IdealBatchSize {
@@ -834,9 +840,7 @@ func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain [
 	if td := bc.GetTd(head.Hash(), head.NumberU64()); td != nil { // Rewind may have occurred, skip in that case
 		currentFastBlock := bc.CurrentFastBlock()
 		if bc.GetTd(currentFastBlock.Hash(), currentFastBlock.NumberU64()).Cmp(td) < 0 {
-			if err := WriteHeadFastBlockHash(bc.db, head.Hash()); err != nil {
+			rawdb.WriteHeadFastBlockHash(bc.db, head.Hash())
-				log.Crit("Failed to update head fast block hash", "err", err)
-			}
 			bc.currentFastBlock.Store(head)
 		}
 	}
@@ -864,9 +868,8 @@ func (bc *BlockChain) WriteBlockWithoutState(block *types.Block, td *big.Int) (e
 	if err := bc.hc.WriteTd(block.Hash(), block.NumberU64(), td); err != nil {
 		return err
 	}
-	if err := WriteBlock(bc.db, block); err != nil {
+	rawdb.WriteBlock(bc.db, block)
-		return err
+
-	}
 	return nil
 }
 
@@ -894,9 +897,8 @@ func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types.
 	}
 	// Write other block data using a batch.
 	batch := bc.db.NewBatch()
-	if err := WriteBlock(batch, block); err != nil {
+	rawdb.WriteBlock(batch, block)
-		return NonStatTy, err
+
-	}
 	root, err := state.Commit(bc.chainConfig.IsEIP158(block.Number()))
 	if err != nil {
 		return NonStatTy, err
@@ -953,9 +955,8 @@ func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types.
 			}
 		}
 	}
-	if err := WriteBlockReceipts(batch, block.Hash(), block.NumberU64(), receipts); err != nil {
+	rawdb.WriteReceipts(batch, block.Hash(), block.NumberU64(), receipts)
-		return NonStatTy, err
+
-	}
 	// If the total difficulty is higher than our known, add it to the canonical chain
 	// Second clause in the if statement reduces the vulnerability to selfish mining.
 	// Please refer to http://www.cs.cornell.edu/~ie53/publications/btcProcFC.pdf
@@ -972,14 +973,10 @@ func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types.
 				return NonStatTy, err
 			}
 		}
-		// Write the positional metadata for transaction and receipt lookups
+		// Write the positional metadata for transaction/receipt lookups and preimages
-		if err := WriteTxLookupEntries(batch, block); err != nil {
+		rawdb.WriteTxLookupEntries(batch, block)
-			return NonStatTy, err
+		rawdb.WritePreimages(batch, block.NumberU64(), state.Preimages())
-		}
+
-		// Write hash preimages
-		if err := WritePreimages(bc.db, block.NumberU64(), state.Preimages()); err != nil {
-			return NonStatTy, err
-		}
 		status = CanonStatTy
 	} else {
 		status = SideStatTy
@@ -1256,9 +1253,13 @@ func (bc *BlockChain) reorg(oldBlock, newBlock *types.Block) error {
 		// collectLogs collects the logs that were generated during the
 		// processing of the block that corresponds with the given hash.
 		// These logs are later announced as deleted.
-		collectLogs = func(h common.Hash) {
+		collectLogs = func(hash common.Hash) {
 			// Coalesce logs and set 'Removed'.
-			receipts := GetBlockReceipts(bc.db, h, bc.hc.GetBlockNumber(h))
+			number := bc.hc.GetBlockNumber(hash)
+			if number == nil {
+				return
+			}
+			receipts := rawdb.ReadReceipts(bc.db, hash, *number)
 			for _, receipt := range receipts {
 				for _, log := range receipt.Logs {
 					del := *log
@@ -1327,9 +1328,7 @@ func (bc *BlockChain) reorg(oldBlock, newBlock *types.Block) error {
 		// insert the block in the canonical way, re-writing history
 		bc.insert(newChain[i])
 		// write lookup entries for hash based transaction/receipt searches
-		if err := WriteTxLookupEntries(bc.db, newChain[i]); err != nil {
+		rawdb.WriteTxLookupEntries(bc.db, newChain[i])
-			return err
-		}
 		addedTxs = append(addedTxs, newChain[i].Transactions()...)
 	}
 	// calculate the difference between deleted and added transactions
@@ -1337,7 +1336,7 @@ func (bc *BlockChain) reorg(oldBlock, newBlock *types.Block) error {
 	// When transactions get deleted from the database that means the
 	// receipts that were created in the fork must also be deleted
 	for _, tx := range diff {
-		DeleteTxLookupEntry(bc.db, tx.Hash())
+		rawdb.DeleteTxLookupEntry(bc.db, tx.Hash())
 	}
 	if len(deletedLogs) > 0 {
 		go bc.rmLogsFeed.Send(RemovedLogsEvent{deletedLogs})

core/blockchain_test.go

@@ -26,6 +26,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -128,8 +129,8 @@ func testBlockChainImport(chain types.Blocks, blockchain *BlockChain) error {
 			return err
 		}
 		blockchain.mu.Lock()
-		WriteTd(blockchain.db, block.Hash(), block.NumberU64(), new(big.Int).Add(block.Difficulty(), blockchain.GetTdByHash(block.ParentHash())))
+		rawdb.WriteTd(blockchain.db, block.Hash(), block.NumberU64(), new(big.Int).Add(block.Difficulty(), blockchain.GetTdByHash(block.ParentHash())))
-		WriteBlock(blockchain.db, block)
+		rawdb.WriteBlock(blockchain.db, block)
 		statedb.Commit(false)
 		blockchain.mu.Unlock()
 	}
@@ -146,8 +147,8 @@ func testHeaderChainImport(chain []*types.Header, blockchain *BlockChain) error
 		}
 		// Manually insert the header into the database, but don't reorganise (allows subsequent testing)
 		blockchain.mu.Lock()
-		WriteTd(blockchain.db, header.Hash(), header.Number.Uint64(), new(big.Int).Add(header.Difficulty, blockchain.GetTdByHash(header.ParentHash)))
+		rawdb.WriteTd(blockchain.db, header.Hash(), header.Number.Uint64(), new(big.Int).Add(header.Difficulty, blockchain.GetTdByHash(header.ParentHash)))
-		WriteHeader(blockchain.db, header)
+		rawdb.WriteHeader(blockchain.db, header)
 		blockchain.mu.Unlock()
 	}
 	return nil
@@ -173,7 +174,7 @@ func TestLastBlock(t *testing.T) {
 	if _, err := blockchain.InsertChain(blocks); err != nil {
 		t.Fatalf("Failed to insert block: %v", err)
 	}
-	if blocks[len(blocks)-1].Hash() != GetHeadBlockHash(blockchain.db) {
+	if blocks[len(blocks)-1].Hash() != rawdb.ReadHeadBlockHash(blockchain.db) {
 		t.Fatalf("Write/Get HeadBlockHash failed")
 	}
 }
@@ -639,13 +640,13 @@ func TestFastVsFullChains(t *testing.T) {
 		} else if types.CalcUncleHash(fblock.Uncles()) != types.CalcUncleHash(ablock.Uncles()) {
 			t.Errorf("block #%d [%x]: uncles mismatch: have %v, want %v", num, hash, fblock.Uncles(), ablock.Uncles())
 		}
-		if freceipts, areceipts := GetBlockReceipts(fastDb, hash, GetBlockNumber(fastDb, hash)), GetBlockReceipts(archiveDb, hash, GetBlockNumber(archiveDb, hash)); types.DeriveSha(freceipts) != types.DeriveSha(areceipts) {
+		if freceipts, areceipts := rawdb.ReadReceipts(fastDb, hash, *rawdb.ReadHeaderNumber(fastDb, hash)), rawdb.ReadReceipts(archiveDb, hash, *rawdb.ReadHeaderNumber(archiveDb, hash)); types.DeriveSha(freceipts) != types.DeriveSha(areceipts) {
 			t.Errorf("block #%d [%x]: receipts mismatch: have %v, want %v", num, hash, freceipts, areceipts)
 		}
 	}
 	// Check that the canonical chains are the same between the databases
 	for i := 0; i < len(blocks)+1; i++ {
-		if fhash, ahash := GetCanonicalHash(fastDb, uint64(i)), GetCanonicalHash(archiveDb, uint64(i)); fhash != ahash {
+		if fhash, ahash := rawdb.ReadCanonicalHash(fastDb, uint64(i)), rawdb.ReadCanonicalHash(archiveDb, uint64(i)); fhash != ahash {
 			t.Errorf("block #%d: canonical hash mismatch: have %v, want %v", i, fhash, ahash)
 		}
 	}
@@ -821,28 +822,28 @@ func TestChainTxReorgs(t *testing.T) {
 
 	// removed tx
 	for i, tx := range (types.Transactions{pastDrop, freshDrop}) {
-		if txn, _, _, _ := GetTransaction(db, tx.Hash()); txn != nil {
+		if txn, _, _, _ := rawdb.ReadTransaction(db, tx.Hash()); txn != nil {
 			t.Errorf("drop %d: tx %v found while shouldn't have been", i, txn)
 		}
-		if rcpt, _, _, _ := GetReceipt(db, tx.Hash()); rcpt != nil {
+		if rcpt, _, _, _ := rawdb.ReadReceipt(db, tx.Hash()); rcpt != nil {
 			t.Errorf("drop %d: receipt %v found while shouldn't have been", i, rcpt)
 		}
 	}
 	// added tx
 	for i, tx := range (types.Transactions{pastAdd, freshAdd, futureAdd}) {
-		if txn, _, _, _ := GetTransaction(db, tx.Hash()); txn == nil {
+		if txn, _, _, _ := rawdb.ReadTransaction(db, tx.Hash()); txn == nil {
 			t.Errorf("add %d: expected tx to be found", i)
 		}
-		if rcpt, _, _, _ := GetReceipt(db, tx.Hash()); rcpt == nil {
+		if rcpt, _, _, _ := rawdb.ReadReceipt(db, tx.Hash()); rcpt == nil {
 			t.Errorf("add %d: expected receipt to be found", i)
 		}
 	}
 	// shared tx
 	for i, tx := range (types.Transactions{postponed, swapped}) {
-		if txn, _, _, _ := GetTransaction(db, tx.Hash()); txn == nil {
+		if txn, _, _, _ := rawdb.ReadTransaction(db, tx.Hash()); txn == nil {
 			t.Errorf("share %d: expected tx to be found", i)
 		}
-		if rcpt, _, _, _ := GetReceipt(db, tx.Hash()); rcpt == nil {
+		if rcpt, _, _, _ := rawdb.ReadReceipt(db, tx.Hash()); rcpt == nil {
 			t.Errorf("share %d: expected receipt to be found", i)
 		}
 	}
@@ -997,14 +998,14 @@ func TestCanonicalBlockRetrieval(t *testing.T) {
 
 			// try to retrieve a block by its canonical hash and see if the block data can be retrieved.
 			for {
-				ch := GetCanonicalHash(blockchain.db, block.NumberU64())
+				ch := rawdb.ReadCanonicalHash(blockchain.db, block.NumberU64())
 				if ch == (common.Hash{}) {
 					continue // busy wait for canonical hash to be written
 				}
 				if ch != block.Hash() {
 					t.Fatalf("unknown canonical hash, want %s, got %s", block.Hash().Hex(), ch.Hex())
 				}
-				fb := GetBlock(blockchain.db, ch, block.NumberU64())
+				fb := rawdb.ReadBlock(blockchain.db, ch, block.NumberU64())
 				if fb == nil {
 					t.Fatalf("unable to retrieve block %d for canonical hash: %s", block.NumberU64(), ch.Hex())
 				}

core/chain_indexer.go

@@ -24,6 +24,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
@@ -206,7 +207,7 @@ func (c *ChainIndexer) eventLoop(currentHeader *types.Header, events chan ChainE
 
 				// TODO(karalabe): This operation is expensive and might block, causing the event system to
 				// potentially also lock up. We need to do with on a different thread somehow.
-				if h := FindCommonAncestor(c.chainDb, prevHeader, header); h != nil {
+				if h := rawdb.FindCommonAncestor(c.chainDb, prevHeader, header); h != nil {
 					c.newHead(h.Number.Uint64(), true)
 				}
 			}
@@ -349,11 +350,11 @@ func (c *ChainIndexer) processSection(section uint64, lastHead common.Hash) (com
 	}
 
 	for number := section * c.sectionSize; number < (section+1)*c.sectionSize; number++ {
-		hash := GetCanonicalHash(c.chainDb, number)
+		hash := rawdb.ReadCanonicalHash(c.chainDb, number)
 		if hash == (common.Hash{}) {
 			return common.Hash{}, fmt.Errorf("canonical block #%d unknown", number)
 		}
-		header := GetHeader(c.chainDb, hash, number)
+		header := rawdb.ReadHeader(c.chainDb, hash, number)
 		if header == nil {
 			return common.Hash{}, fmt.Errorf("block #%d [%x…] not found", number, hash[:4])
 		} else if header.ParentHash != lastHead {

core/chain_indexer_test.go

@@ -24,6 +24,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 )
@@ -92,10 +93,10 @@ func testChainIndexer(t *testing.T, count int) {
 	inject := func(number uint64) {
 		header := &types.Header{Number: big.NewInt(int64(number)), Extra: big.NewInt(rand.Int63()).Bytes()}
 		if number > 0 {
-			header.ParentHash = GetCanonicalHash(db, number-1)
+			header.ParentHash = rawdb.ReadCanonicalHash(db, number-1)
 		}
-		WriteHeader(db, header)
+		rawdb.WriteHeader(db, header)
-		WriteCanonicalHash(db, header.Hash(), number)
+		rawdb.WriteCanonicalHash(db, header.Hash(), number)
 	}
 	// Start indexer with an already existing chain
 	for i := uint64(0); i <= 100; i++ {

core/database_util.go

@@ -1,652 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package core
-
-import (
-	"bytes"
-	"encoding/binary"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/ethdb"
-	"github.com/ethereum/go-ethereum/log"
-	"github.com/ethereum/go-ethereum/metrics"
-	"github.com/ethereum/go-ethereum/params"
-	"github.com/ethereum/go-ethereum/rlp"
-)
-
-// DatabaseReader wraps the Get method of a backing data store.
-type DatabaseReader interface {
-	Get(key []byte) (value []byte, err error)
-}
-
-// DatabaseDeleter wraps the Delete method of a backing data store.
-type DatabaseDeleter interface {
-	Delete(key []byte) error
-}
-
-var (
-	headHeaderKey = []byte("LastHeader")
-	headBlockKey  = []byte("LastBlock")
-	headFastKey   = []byte("LastFast")
-	trieSyncKey   = []byte("TrieSync")
-
-	// Data item prefixes (use single byte to avoid mixing data types, avoid `i`).
-	headerPrefix        = []byte("h") // headerPrefix + num (uint64 big endian) + hash -> header
-	tdSuffix            = []byte("t") // headerPrefix + num (uint64 big endian) + hash + tdSuffix -> td
-	numSuffix           = []byte("n") // headerPrefix + num (uint64 big endian) + numSuffix -> hash
-	blockHashPrefix     = []byte("H") // blockHashPrefix + hash -> num (uint64 big endian)
-	bodyPrefix          = []byte("b") // bodyPrefix + num (uint64 big endian) + hash -> block body
-	blockReceiptsPrefix = []byte("r") // blockReceiptsPrefix + num (uint64 big endian) + hash -> block receipts
-	lookupPrefix        = []byte("l") // lookupPrefix + hash -> transaction/receipt lookup metadata
-	bloomBitsPrefix     = []byte("B") // bloomBitsPrefix + bit (uint16 big endian) + section (uint64 big endian) + hash -> bloom bits
-
-	preimagePrefix = "secure-key-"              // preimagePrefix + hash -> preimage
-	configPrefix   = []byte("ethereum-config-") // config prefix for the db
-
-	// Chain index prefixes (use `i` + single byte to avoid mixing data types).
-	BloomBitsIndexPrefix = []byte("iB") // BloomBitsIndexPrefix is the data table of a chain indexer to track its progress
-
-	// used by old db, now only used for conversion
-	oldReceiptsPrefix = []byte("receipts-")
-	oldTxMetaSuffix   = []byte{0x01}
-
-	ErrChainConfigNotFound = errors.New("ChainConfig not found") // general config not found error
-
-	preimageCounter    = metrics.NewRegisteredCounter("db/preimage/total", nil)
-	preimageHitCounter = metrics.NewRegisteredCounter("db/preimage/hits", nil)
-)
-
-// TxLookupEntry is a positional metadata to help looking up the data content of
-// a transaction or receipt given only its hash.
-type TxLookupEntry struct {
-	BlockHash  common.Hash
-	BlockIndex uint64
-	Index      uint64
-}
-
-// encodeBlockNumber encodes a block number as big endian uint64
-func encodeBlockNumber(number uint64) []byte {
-	enc := make([]byte, 8)
-	binary.BigEndian.PutUint64(enc, number)
-	return enc
-}
-
-// GetCanonicalHash retrieves a hash assigned to a canonical block number.
-func GetCanonicalHash(db DatabaseReader, number uint64) common.Hash {
-	data, _ := db.Get(append(append(headerPrefix, encodeBlockNumber(number)...), numSuffix...))
-	if len(data) == 0 {
-		return common.Hash{}
-	}
-	return common.BytesToHash(data)
-}
-
-// missingNumber is returned by GetBlockNumber if no header with the
-// given block hash has been stored in the database
-const missingNumber = uint64(0xffffffffffffffff)
-
-// GetBlockNumber returns the block number assigned to a block hash
-// if the corresponding header is present in the database
-func GetBlockNumber(db DatabaseReader, hash common.Hash) uint64 {
-	data, _ := db.Get(append(blockHashPrefix, hash.Bytes()...))
-	if len(data) != 8 {
-		return missingNumber
-	}
-	return binary.BigEndian.Uint64(data)
-}
-
-// GetHeadHeaderHash retrieves the hash of the current canonical head block's
-// header. The difference between this and GetHeadBlockHash is that whereas the
-// last block hash is only updated upon a full block import, the last header
-// hash is updated already at header import, allowing head tracking for the
-// light synchronization mechanism.
-func GetHeadHeaderHash(db DatabaseReader) common.Hash {
-	data, _ := db.Get(headHeaderKey)
-	if len(data) == 0 {
-		return common.Hash{}
-	}
-	return common.BytesToHash(data)
-}
-
-// GetHeadBlockHash retrieves the hash of the current canonical head block.
-func GetHeadBlockHash(db DatabaseReader) common.Hash {
-	data, _ := db.Get(headBlockKey)
-	if len(data) == 0 {
-		return common.Hash{}
-	}
-	return common.BytesToHash(data)
-}
-
-// GetHeadFastBlockHash retrieves the hash of the current canonical head block during
-// fast synchronization. The difference between this and GetHeadBlockHash is that
-// whereas the last block hash is only updated upon a full block import, the last
-// fast hash is updated when importing pre-processed blocks.
-func GetHeadFastBlockHash(db DatabaseReader) common.Hash {
-	data, _ := db.Get(headFastKey)
-	if len(data) == 0 {
-		return common.Hash{}
-	}
-	return common.BytesToHash(data)
-}
-
-// GetTrieSyncProgress retrieves the number of tries nodes fast synced to allow
-// reportinc correct numbers across restarts.
-func GetTrieSyncProgress(db DatabaseReader) uint64 {
-	data, _ := db.Get(trieSyncKey)
-	if len(data) == 0 {
-		return 0
-	}
-	return new(big.Int).SetBytes(data).Uint64()
-}
-
-// GetHeaderRLP retrieves a block header in its raw RLP database encoding, or nil
-// if the header's not found.
-func GetHeaderRLP(db DatabaseReader, hash common.Hash, number uint64) rlp.RawValue {
-	data, _ := db.Get(headerKey(hash, number))
-	return data
-}
-
-// GetHeader retrieves the block header corresponding to the hash, nil if none
-// found.
-func GetHeader(db DatabaseReader, hash common.Hash, number uint64) *types.Header {
-	data := GetHeaderRLP(db, hash, number)
-	if len(data) == 0 {
-		return nil
-	}
-	header := new(types.Header)
-	if err := rlp.Decode(bytes.NewReader(data), header); err != nil {
-		log.Error("Invalid block header RLP", "hash", hash, "err", err)
-		return nil
-	}
-	return header
-}
-
-// GetBodyRLP retrieves the block body (transactions and uncles) in RLP encoding.
-func GetBodyRLP(db DatabaseReader, hash common.Hash, number uint64) rlp.RawValue {
-	data, _ := db.Get(blockBodyKey(hash, number))
-	return data
-}
-
-func headerKey(hash common.Hash, number uint64) []byte {
-	return append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
-}
-
-func blockBodyKey(hash common.Hash, number uint64) []byte {
-	return append(append(bodyPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
-}
-
-// GetBody retrieves the block body (transactons, uncles) corresponding to the
-// hash, nil if none found.
-func GetBody(db DatabaseReader, hash common.Hash, number uint64) *types.Body {
-	data := GetBodyRLP(db, hash, number)
-	if len(data) == 0 {
-		return nil
-	}
-	body := new(types.Body)
-	if err := rlp.Decode(bytes.NewReader(data), body); err != nil {
-		log.Error("Invalid block body RLP", "hash", hash, "err", err)
-		return nil
-	}
-	return body
-}
-
-// GetTd retrieves a block's total difficulty corresponding to the hash, nil if
-// none found.
-func GetTd(db DatabaseReader, hash common.Hash, number uint64) *big.Int {
-	data, _ := db.Get(append(append(append(headerPrefix, encodeBlockNumber(number)...), hash[:]...), tdSuffix...))
-	if len(data) == 0 {
-		return nil
-	}
-	td := new(big.Int)
-	if err := rlp.Decode(bytes.NewReader(data), td); err != nil {
-		log.Error("Invalid block total difficulty RLP", "hash", hash, "err", err)
-		return nil
-	}
-	return td
-}
-
-// GetBlock retrieves an entire block corresponding to the hash, assembling it
-// back from the stored header and body. If either the header or body could not
-// be retrieved nil is returned.
-//
-// Note, due to concurrent download of header and block body the header and thus
-// canonical hash can be stored in the database but the body data not (yet).
-func GetBlock(db DatabaseReader, hash common.Hash, number uint64) *types.Block {
-	// Retrieve the block header and body contents
-	header := GetHeader(db, hash, number)
-	if header == nil {
-		return nil
-	}
-	body := GetBody(db, hash, number)
-	if body == nil {
-		return nil
-	}
-	// Reassemble the block and return
-	return types.NewBlockWithHeader(header).WithBody(body.Transactions, body.Uncles)
-}
-
-// GetBlockReceipts retrieves the receipts generated by the transactions included
-// in a block given by its hash.
-func GetBlockReceipts(db DatabaseReader, hash common.Hash, number uint64) types.Receipts {
-	data, _ := db.Get(append(append(blockReceiptsPrefix, encodeBlockNumber(number)...), hash[:]...))
-	if len(data) == 0 {
-		return nil
-	}
-	storageReceipts := []*types.ReceiptForStorage{}
-	if err := rlp.DecodeBytes(data, &storageReceipts); err != nil {
-		log.Error("Invalid receipt array RLP", "hash", hash, "err", err)
-		return nil
-	}
-	receipts := make(types.Receipts, len(storageReceipts))
-	for i, receipt := range storageReceipts {
-		receipts[i] = (*types.Receipt)(receipt)
-	}
-	return receipts
-}
-
-// GetTxLookupEntry retrieves the positional metadata associated with a transaction
-// hash to allow retrieving the transaction or receipt by hash.
-func GetTxLookupEntry(db DatabaseReader, hash common.Hash) (common.Hash, uint64, uint64) {
-	// Load the positional metadata from disk and bail if it fails
-	data, _ := db.Get(append(lookupPrefix, hash.Bytes()...))
-	if len(data) == 0 {
-		return common.Hash{}, 0, 0
-	}
-	// Parse and return the contents of the lookup entry
-	var entry TxLookupEntry
-	if err := rlp.DecodeBytes(data, &entry); err != nil {
-		log.Error("Invalid lookup entry RLP", "hash", hash, "err", err)
-		return common.Hash{}, 0, 0
-	}
-	return entry.BlockHash, entry.BlockIndex, entry.Index
-}
-
-// GetTransaction retrieves a specific transaction from the database, along with
-// its added positional metadata.
-func GetTransaction(db DatabaseReader, hash common.Hash) (*types.Transaction, common.Hash, uint64, uint64) {
-	// Retrieve the lookup metadata and resolve the transaction from the body
-	blockHash, blockNumber, txIndex := GetTxLookupEntry(db, hash)
-
-	if blockHash != (common.Hash{}) {
-		body := GetBody(db, blockHash, blockNumber)
-		if body == nil || len(body.Transactions) <= int(txIndex) {
-			log.Error("Transaction referenced missing", "number", blockNumber, "hash", blockHash, "index", txIndex)
-			return nil, common.Hash{}, 0, 0
-		}
-		return body.Transactions[txIndex], blockHash, blockNumber, txIndex
-	}
-	// Old transaction representation, load the transaction and it's metadata separately
-	data, _ := db.Get(hash.Bytes())
-	if len(data) == 0 {
-		return nil, common.Hash{}, 0, 0
-	}
-	var tx types.Transaction
-	if err := rlp.DecodeBytes(data, &tx); err != nil {
-		return nil, common.Hash{}, 0, 0
-	}
-	// Retrieve the blockchain positional metadata
-	data, _ = db.Get(append(hash.Bytes(), oldTxMetaSuffix...))
-	if len(data) == 0 {
-		return nil, common.Hash{}, 0, 0
-	}
-	var entry TxLookupEntry
-	if err := rlp.DecodeBytes(data, &entry); err != nil {
-		return nil, common.Hash{}, 0, 0
-	}
-	return &tx, entry.BlockHash, entry.BlockIndex, entry.Index
-}
-
-// GetReceipt retrieves a specific transaction receipt from the database, along with
-// its added positional metadata.
-func GetReceipt(db DatabaseReader, hash common.Hash) (*types.Receipt, common.Hash, uint64, uint64) {
-	// Retrieve the lookup metadata and resolve the receipt from the receipts
-	blockHash, blockNumber, receiptIndex := GetTxLookupEntry(db, hash)
-
-	if blockHash != (common.Hash{}) {
-		receipts := GetBlockReceipts(db, blockHash, blockNumber)
-		if len(receipts) <= int(receiptIndex) {
-			log.Error("Receipt refereced missing", "number", blockNumber, "hash", blockHash, "index", receiptIndex)
-			return nil, common.Hash{}, 0, 0
-		}
-		return receipts[receiptIndex], blockHash, blockNumber, receiptIndex
-	}
-	// Old receipt representation, load the receipt and set an unknown metadata
-	data, _ := db.Get(append(oldReceiptsPrefix, hash[:]...))
-	if len(data) == 0 {
-		return nil, common.Hash{}, 0, 0
-	}
-	var receipt types.ReceiptForStorage
-	err := rlp.DecodeBytes(data, &receipt)
-	if err != nil {
-		log.Error("Invalid receipt RLP", "hash", hash, "err", err)
-	}
-	return (*types.Receipt)(&receipt), common.Hash{}, 0, 0
-}
-
-// GetBloomBits retrieves the compressed bloom bit vector belonging to the given
-// section and bit index from the.
-func GetBloomBits(db DatabaseReader, bit uint, section uint64, head common.Hash) ([]byte, error) {
-	key := append(append(bloomBitsPrefix, make([]byte, 10)...), head.Bytes()...)
-
-	binary.BigEndian.PutUint16(key[1:], uint16(bit))
-	binary.BigEndian.PutUint64(key[3:], section)
-
-	return db.Get(key)
-}
-
-// WriteCanonicalHash stores the canonical hash for the given block number.
-func WriteCanonicalHash(db ethdb.Putter, hash common.Hash, number uint64) error {
-	key := append(append(headerPrefix, encodeBlockNumber(number)...), numSuffix...)
-	if err := db.Put(key, hash.Bytes()); err != nil {
-		log.Crit("Failed to store number to hash mapping", "err", err)
-	}
-	return nil
-}
-
-// WriteHeadHeaderHash stores the head header's hash.
-func WriteHeadHeaderHash(db ethdb.Putter, hash common.Hash) error {
-	if err := db.Put(headHeaderKey, hash.Bytes()); err != nil {
-		log.Crit("Failed to store last header's hash", "err", err)
-	}
-	return nil
-}
-
-// WriteHeadBlockHash stores the head block's hash.
-func WriteHeadBlockHash(db ethdb.Putter, hash common.Hash) error {
-	if err := db.Put(headBlockKey, hash.Bytes()); err != nil {
-		log.Crit("Failed to store last block's hash", "err", err)
-	}
-	return nil
-}
-
-// WriteHeadFastBlockHash stores the fast head block's hash.
-func WriteHeadFastBlockHash(db ethdb.Putter, hash common.Hash) error {
-	if err := db.Put(headFastKey, hash.Bytes()); err != nil {
-		log.Crit("Failed to store last fast block's hash", "err", err)
-	}
-	return nil
-}
-
-// WriteTrieSyncProgress stores the fast sync trie process counter to support
-// retrieving it across restarts.
-func WriteTrieSyncProgress(db ethdb.Putter, count uint64) error {
-	if err := db.Put(trieSyncKey, new(big.Int).SetUint64(count).Bytes()); err != nil {
-		log.Crit("Failed to store fast sync trie progress", "err", err)
-	}
-	return nil
-}
-
-// WriteHeader serializes a block header into the database.
-func WriteHeader(db ethdb.Putter, header *types.Header) error {
-	data, err := rlp.EncodeToBytes(header)
-	if err != nil {
-		return err
-	}
-	hash := header.Hash().Bytes()
-	num := header.Number.Uint64()
-	encNum := encodeBlockNumber(num)
-	key := append(blockHashPrefix, hash...)
-	if err := db.Put(key, encNum); err != nil {
-		log.Crit("Failed to store hash to number mapping", "err", err)
-	}
-	key = append(append(headerPrefix, encNum...), hash...)
-	if err := db.Put(key, data); err != nil {
-		log.Crit("Failed to store header", "err", err)
-	}
-	return nil
-}
-
-// WriteBody serializes the body of a block into the database.
-func WriteBody(db ethdb.Putter, hash common.Hash, number uint64, body *types.Body) error {
-	data, err := rlp.EncodeToBytes(body)
-	if err != nil {
-		return err
-	}
-	return WriteBodyRLP(db, hash, number, data)
-}
-
-// WriteBodyRLP writes a serialized body of a block into the database.
-func WriteBodyRLP(db ethdb.Putter, hash common.Hash, number uint64, rlp rlp.RawValue) error {
-	key := append(append(bodyPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
-	if err := db.Put(key, rlp); err != nil {
-		log.Crit("Failed to store block body", "err", err)
-	}
-	return nil
-}
-
-// WriteTd serializes the total difficulty of a block into the database.
-func WriteTd(db ethdb.Putter, hash common.Hash, number uint64, td *big.Int) error {
-	data, err := rlp.EncodeToBytes(td)
-	if err != nil {
-		return err
-	}
-	key := append(append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...), tdSuffix...)
-	if err := db.Put(key, data); err != nil {
-		log.Crit("Failed to store block total difficulty", "err", err)
-	}
-	return nil
-}
-
-// WriteBlock serializes a block into the database, header and body separately.
-func WriteBlock(db ethdb.Putter, block *types.Block) error {
-	// Store the body first to retain database consistency
-	if err := WriteBody(db, block.Hash(), block.NumberU64(), block.Body()); err != nil {
-		return err
-	}
-	// Store the header too, signaling full block ownership
-	if err := WriteHeader(db, block.Header()); err != nil {
-		return err
-	}
-	return nil
-}
-
-// WriteBlockReceipts stores all the transaction receipts belonging to a block
-// as a single receipt slice. This is used during chain reorganisations for
-// rescheduling dropped transactions.
-func WriteBlockReceipts(db ethdb.Putter, hash common.Hash, number uint64, receipts types.Receipts) error {
-	// Convert the receipts into their storage form and serialize them
-	storageReceipts := make([]*types.ReceiptForStorage, len(receipts))
-	for i, receipt := range receipts {
-		storageReceipts[i] = (*types.ReceiptForStorage)(receipt)
-	}
-	bytes, err := rlp.EncodeToBytes(storageReceipts)
-	if err != nil {
-		return err
-	}
-	// Store the flattened receipt slice
-	key := append(append(blockReceiptsPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
-	if err := db.Put(key, bytes); err != nil {
-		log.Crit("Failed to store block receipts", "err", err)
-	}
-	return nil
-}
-
-// WriteTxLookupEntries stores a positional metadata for every transaction from
-// a block, enabling hash based transaction and receipt lookups.
-func WriteTxLookupEntries(db ethdb.Putter, block *types.Block) error {
-	// Iterate over each transaction and encode its metadata
-	for i, tx := range block.Transactions() {
-		entry := TxLookupEntry{
-			BlockHash:  block.Hash(),
-			BlockIndex: block.NumberU64(),
-			Index:      uint64(i),
-		}
-		data, err := rlp.EncodeToBytes(entry)
-		if err != nil {
-			return err
-		}
-		if err := db.Put(append(lookupPrefix, tx.Hash().Bytes()...), data); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// WriteBloomBits writes the compressed bloom bits vector belonging to the given
-// section and bit index.
-func WriteBloomBits(db ethdb.Putter, bit uint, section uint64, head common.Hash, bits []byte) {
-	key := append(append(bloomBitsPrefix, make([]byte, 10)...), head.Bytes()...)
-
-	binary.BigEndian.PutUint16(key[1:], uint16(bit))
-	binary.BigEndian.PutUint64(key[3:], section)
-
-	if err := db.Put(key, bits); err != nil {
-		log.Crit("Failed to store bloom bits", "err", err)
-	}
-}
-
-// DeleteCanonicalHash removes the number to hash canonical mapping.
-func DeleteCanonicalHash(db DatabaseDeleter, number uint64) {
-	db.Delete(append(append(headerPrefix, encodeBlockNumber(number)...), numSuffix...))
-}
-
-// DeleteHeader removes all block header data associated with a hash.
-func DeleteHeader(db DatabaseDeleter, hash common.Hash, number uint64) {
-	db.Delete(append(blockHashPrefix, hash.Bytes()...))
-	db.Delete(append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...))
-}
-
-// DeleteBody removes all block body data associated with a hash.
-func DeleteBody(db DatabaseDeleter, hash common.Hash, number uint64) {
-	db.Delete(append(append(bodyPrefix, encodeBlockNumber(number)...), hash.Bytes()...))
-}
-
-// DeleteTd removes all block total difficulty data associated with a hash.
-func DeleteTd(db DatabaseDeleter, hash common.Hash, number uint64) {
-	db.Delete(append(append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...), tdSuffix...))
-}
-
-// DeleteBlock removes all block data associated with a hash.
-func DeleteBlock(db DatabaseDeleter, hash common.Hash, number uint64) {
-	DeleteBlockReceipts(db, hash, number)
-	DeleteHeader(db, hash, number)
-	DeleteBody(db, hash, number)
-	DeleteTd(db, hash, number)
-}
-
-// DeleteBlockReceipts removes all receipt data associated with a block hash.
-func DeleteBlockReceipts(db DatabaseDeleter, hash common.Hash, number uint64) {
-	db.Delete(append(append(blockReceiptsPrefix, encodeBlockNumber(number)...), hash.Bytes()...))
-}
-
-// DeleteTxLookupEntry removes all transaction data associated with a hash.
-func DeleteTxLookupEntry(db DatabaseDeleter, hash common.Hash) {
-	db.Delete(append(lookupPrefix, hash.Bytes()...))
-}
-
-// PreimageTable returns a Database instance with the key prefix for preimage entries.
-func PreimageTable(db ethdb.Database) ethdb.Database {
-	return ethdb.NewTable(db, preimagePrefix)
-}
-
-// WritePreimages writes the provided set of preimages to the database. `number` is the
-// current block number, and is used for debug messages only.
-func WritePreimages(db ethdb.Database, number uint64, preimages map[common.Hash][]byte) error {
-	table := PreimageTable(db)
-	batch := table.NewBatch()
-	hitCount := 0
-	for hash, preimage := range preimages {
-		if _, err := table.Get(hash.Bytes()); err != nil {
-			batch.Put(hash.Bytes(), preimage)
-			hitCount++
-		}
-	}
-	preimageCounter.Inc(int64(len(preimages)))
-	preimageHitCounter.Inc(int64(hitCount))
-	if hitCount > 0 {
-		if err := batch.Write(); err != nil {
-			return fmt.Errorf("preimage write fail for block %d: %v", number, err)
-		}
-	}
-	return nil
-}
-
-// GetBlockChainVersion reads the version number from db.
-func GetBlockChainVersion(db DatabaseReader) int {
-	var vsn uint
-	enc, _ := db.Get([]byte("BlockchainVersion"))
-	rlp.DecodeBytes(enc, &vsn)
-	return int(vsn)
-}
-
-// WriteBlockChainVersion writes vsn as the version number to db.
-func WriteBlockChainVersion(db ethdb.Putter, vsn int) {
-	enc, _ := rlp.EncodeToBytes(uint(vsn))
-	db.Put([]byte("BlockchainVersion"), enc)
-}
-
-// WriteChainConfig writes the chain config settings to the database.
-func WriteChainConfig(db ethdb.Putter, hash common.Hash, cfg *params.ChainConfig) error {
-	// short circuit and ignore if nil config. GetChainConfig
-	// will return a default.
-	if cfg == nil {
-		return nil
-	}
-
-	jsonChainConfig, err := json.Marshal(cfg)
-	if err != nil {
-		return err
-	}
-
-	return db.Put(append(configPrefix, hash[:]...), jsonChainConfig)
-}
-
-// GetChainConfig will fetch the network settings based on the given hash.
-func GetChainConfig(db DatabaseReader, hash common.Hash) (*params.ChainConfig, error) {
-	jsonChainConfig, _ := db.Get(append(configPrefix, hash[:]...))
-	if len(jsonChainConfig) == 0 {
-		return nil, ErrChainConfigNotFound
-	}
-
-	var config params.ChainConfig
-	if err := json.Unmarshal(jsonChainConfig, &config); err != nil {
-		return nil, err
-	}
-
-	return &config, nil
-}
-
-// FindCommonAncestor returns the last common ancestor of two block headers
-func FindCommonAncestor(db DatabaseReader, a, b *types.Header) *types.Header {
-	for bn := b.Number.Uint64(); a.Number.Uint64() > bn; {
-		a = GetHeader(db, a.ParentHash, a.Number.Uint64()-1)
-		if a == nil {
-			return nil
-		}
-	}
-	for an := a.Number.Uint64(); an < b.Number.Uint64(); {
-		b = GetHeader(db, b.ParentHash, b.Number.Uint64()-1)
-		if b == nil {
-			return nil
-		}
-	}
-	for a.Hash() != b.Hash() {
-		a = GetHeader(db, a.ParentHash, a.Number.Uint64()-1)
-		if a == nil {
-			return nil
-		}
-		b = GetHeader(db, b.ParentHash, b.Number.Uint64()-1)
-		if b == nil {
-			return nil
-		}
-	}
-	return a
-}

core/genesis.go

@@ -28,6 +28,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/common/math"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -155,7 +156,7 @@ func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig
 	}
 
 	// Just commit the new block if there is no stored genesis block.
-	stored := GetCanonicalHash(db, 0)
+	stored := rawdb.ReadCanonicalHash(db, 0)
 	if (stored == common.Hash{}) {
 		if genesis == nil {
 			log.Info("Writing default main-net genesis block")
@@ -177,14 +178,11 @@ func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig
 
 	// Get the existing chain configuration.
 	newcfg := genesis.configOrDefault(stored)
-	storedcfg, err := GetChainConfig(db, stored)
+	storedcfg := rawdb.ReadChainConfig(db, stored)
-	if err != nil {
+	if storedcfg == nil {
-		if err == ErrChainConfigNotFound {
-			// This case happens if a genesis write was interrupted.
 		log.Warn("Found genesis block without chain config")
-			err = WriteChainConfig(db, stored, newcfg)
+		rawdb.WriteChainConfig(db, stored, newcfg)
-		}
+		return newcfg, stored, nil
-		return newcfg, stored, err
 	}
 	// Special case: don't change the existing config of a non-mainnet chain if no new
 	// config is supplied. These chains would get AllProtocolChanges (and a compat error)
@@ -195,15 +193,16 @@ func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig
 
 	// Check config compatibility and write the config. Compatibility errors
 	// are returned to the caller unless we're already at block zero.
-	height := GetBlockNumber(db, GetHeadHeaderHash(db))
+	height := rawdb.ReadHeaderNumber(db, rawdb.ReadHeadHeaderHash(db))
-	if height == missingNumber {
+	if height == nil {
 		return newcfg, stored, fmt.Errorf("missing block number for head header hash")
 	}
-	compatErr := storedcfg.CheckCompatible(newcfg, height)
+	compatErr := storedcfg.CheckCompatible(newcfg, *height)
-	if compatErr != nil && height != 0 && compatErr.RewindTo != 0 {
+	if compatErr != nil && *height != 0 && compatErr.RewindTo != 0 {
 		return newcfg, stored, compatErr
 	}
-	return newcfg, stored, WriteChainConfig(db, stored, newcfg)
+	rawdb.WriteChainConfig(db, stored, newcfg)
+	return newcfg, stored, nil
 }
 
 func (g *Genesis) configOrDefault(ghash common.Hash) *params.ChainConfig {
@@ -267,29 +266,19 @@ func (g *Genesis) Commit(db ethdb.Database) (*types.Block, error) {
 	if block.Number().Sign() != 0 {
 		return nil, fmt.Errorf("can't commit genesis block with number > 0")
 	}
-	if err := WriteTd(db, block.Hash(), block.NumberU64(), g.Difficulty); err != nil {
+	rawdb.WriteTd(db, block.Hash(), block.NumberU64(), g.Difficulty)
-		return nil, err
+	rawdb.WriteBlock(db, block)
-	}
+	rawdb.WriteReceipts(db, block.Hash(), block.NumberU64(), nil)
-	if err := WriteBlock(db, block); err != nil {
+	rawdb.WriteCanonicalHash(db, block.Hash(), block.NumberU64())
-		return nil, err
+	rawdb.WriteHeadBlockHash(db, block.Hash())
-	}
+	rawdb.WriteHeadHeaderHash(db, block.Hash())
-	if err := WriteBlockReceipts(db, block.Hash(), block.NumberU64(), nil); err != nil {
+
-		return nil, err
-	}
-	if err := WriteCanonicalHash(db, block.Hash(), block.NumberU64()); err != nil {
-		return nil, err
-	}
-	if err := WriteHeadBlockHash(db, block.Hash()); err != nil {
-		return nil, err
-	}
-	if err := WriteHeadHeaderHash(db, block.Hash()); err != nil {
-		return nil, err
-	}
 	config := g.Config
 	if config == nil {
 		config = params.AllEthashProtocolChanges
 	}
-	return block, WriteChainConfig(db, block.Hash(), config)
+	rawdb.WriteChainConfig(db, block.Hash(), config)
+	return block, nil
 }
 
 // MustCommit writes the genesis block and state to db, panicking on error.

core/genesis_test.go

@@ -24,6 +24,7 @@ import (
 	"github.com/davecgh/go-spew/spew"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/params"
@@ -154,7 +155,7 @@ func TestSetupGenesis(t *testing.T) {
 			t.Errorf("%s: returned hash %s, want %s", test.name, hash.Hex(), test.wantHash.Hex())
 		} else if err == nil {
 			// Check database content.
-			stored := GetBlock(db, test.wantHash, 0)
+			stored := rawdb.ReadBlock(db, test.wantHash, 0)
 			if stored.Hash() != test.wantHash {
 				t.Errorf("%s: block in DB has hash %s, want %s", test.name, stored.Hash(), test.wantHash)
 			}

core/headerchain.go

@@ -28,6 +28,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/consensus"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/log"
@@ -97,7 +98,7 @@ func NewHeaderChain(chainDb ethdb.Database, config *params.ChainConfig, engine c
 	}
 
 	hc.currentHeader.Store(hc.genesisHeader)
-	if head := GetHeadBlockHash(chainDb); head != (common.Hash{}) {
+	if head := rawdb.ReadHeadBlockHash(chainDb); head != (common.Hash{}) {
 		if chead := hc.GetHeaderByHash(head); chead != nil {
 			hc.currentHeader.Store(chead)
 		}
@@ -109,13 +110,14 @@ func NewHeaderChain(chainDb ethdb.Database, config *params.ChainConfig, engine c
 
 // GetBlockNumber retrieves the block number belonging to the given hash
 // from the cache or database
-func (hc *HeaderChain) GetBlockNumber(hash common.Hash) uint64 {
+func (hc *HeaderChain) GetBlockNumber(hash common.Hash) *uint64 {
 	if cached, ok := hc.numberCache.Get(hash); ok {
-		return cached.(uint64)
+		number := cached.(uint64)
+		return &number
 	}
-	number := GetBlockNumber(hc.chainDb, hash)
+	number := rawdb.ReadHeaderNumber(hc.chainDb, hash)
-	if number != missingNumber {
+	if number != nil {
-		hc.numberCache.Add(hash, number)
+		hc.numberCache.Add(hash, *number)
 	}
 	return number
 }
@@ -147,20 +149,19 @@ func (hc *HeaderChain) WriteHeader(header *types.Header) (status WriteStatus, er
 	if err := hc.WriteTd(hash, number, externTd); err != nil {
 		log.Crit("Failed to write header total difficulty", "err", err)
 	}
-	if err := WriteHeader(hc.chainDb, header); err != nil {
+	rawdb.WriteHeader(hc.chainDb, header)
-		log.Crit("Failed to write header content", "err", err)
+
-	}
 	// If the total difficulty is higher than our known, add it to the canonical chain
 	// Second clause in the if statement reduces the vulnerability to selfish mining.
 	// Please refer to http://www.cs.cornell.edu/~ie53/publications/btcProcFC.pdf
 	if externTd.Cmp(localTd) > 0 || (externTd.Cmp(localTd) == 0 && mrand.Float64() < 0.5) {
 		// Delete any canonical number assignments above the new head
 		for i := number + 1; ; i++ {
-			hash := GetCanonicalHash(hc.chainDb, i)
+			hash := rawdb.ReadCanonicalHash(hc.chainDb, i)
 			if hash == (common.Hash{}) {
 				break
 			}
-			DeleteCanonicalHash(hc.chainDb, i)
+			rawdb.DeleteCanonicalHash(hc.chainDb, i)
 		}
 		// Overwrite any stale canonical number assignments
 		var (
@@ -168,20 +169,17 @@ func (hc *HeaderChain) WriteHeader(header *types.Header) (status WriteStatus, er
 			headNumber = header.Number.Uint64() - 1
 			headHeader = hc.GetHeader(headHash, headNumber)
 		)
-		for GetCanonicalHash(hc.chainDb, headNumber) != headHash {
+		for rawdb.ReadCanonicalHash(hc.chainDb, headNumber) != headHash {
-			WriteCanonicalHash(hc.chainDb, headHash, headNumber)
+			rawdb.WriteCanonicalHash(hc.chainDb, headHash, headNumber)
 
 			headHash = headHeader.ParentHash
 			headNumber = headHeader.Number.Uint64() - 1
 			headHeader = hc.GetHeader(headHash, headNumber)
 		}
 		// Extend the canonical chain with the new header
-		if err := WriteCanonicalHash(hc.chainDb, hash, number); err != nil {
+		rawdb.WriteCanonicalHash(hc.chainDb, hash, number)
-			log.Crit("Failed to insert header number", "err", err)
+		rawdb.WriteHeadHeaderHash(hc.chainDb, hash)
-		}
+
-		if err := WriteHeadHeaderHash(hc.chainDb, hash); err != nil {
-			log.Crit("Failed to insert head header hash", "err", err)
-		}
 		hc.currentHeaderHash = hash
 		hc.currentHeader.Store(types.CopyHeader(header))
 
@@ -316,7 +314,7 @@ func (hc *HeaderChain) GetTd(hash common.Hash, number uint64) *big.Int {
 	if cached, ok := hc.tdCache.Get(hash); ok {
 		return cached.(*big.Int)
 	}
-	td := GetTd(hc.chainDb, hash, number)
+	td := rawdb.ReadTd(hc.chainDb, hash, number)
 	if td == nil {
 		return nil
 	}
@@ -328,15 +326,17 @@ func (hc *HeaderChain) GetTd(hash common.Hash, number uint64) *big.Int {
 // GetTdByHash retrieves a block's total difficulty in the canonical chain from the
 // database by hash, caching it if found.
 func (hc *HeaderChain) GetTdByHash(hash common.Hash) *big.Int {
-	return hc.GetTd(hash, hc.GetBlockNumber(hash))
+	number := hc.GetBlockNumber(hash)
+	if number == nil {
+		return nil
+	}
+	return hc.GetTd(hash, *number)
 }
 
 // WriteTd stores a block's total difficulty into the database, also caching it
 // along the way.
 func (hc *HeaderChain) WriteTd(hash common.Hash, number uint64, td *big.Int) error {
-	if err := WriteTd(hc.chainDb, hash, number, td); err != nil {
+	rawdb.WriteTd(hc.chainDb, hash, number, td)
-		return err
-	}
 	hc.tdCache.Add(hash, new(big.Int).Set(td))
 	return nil
 }
@@ -348,7 +348,7 @@ func (hc *HeaderChain) GetHeader(hash common.Hash, number uint64) *types.Header
 	if header, ok := hc.headerCache.Get(hash); ok {
 		return header.(*types.Header)
 	}
-	header := GetHeader(hc.chainDb, hash, number)
+	header := rawdb.ReadHeader(hc.chainDb, hash, number)
 	if header == nil {
 		return nil
 	}
@@ -360,7 +360,11 @@ func (hc *HeaderChain) GetHeader(hash common.Hash, number uint64) *types.Header
 // GetHeaderByHash retrieves a block header from the database by hash, caching it if
 // found.
 func (hc *HeaderChain) GetHeaderByHash(hash common.Hash) *types.Header {
-	return hc.GetHeader(hash, hc.GetBlockNumber(hash))
+	number := hc.GetBlockNumber(hash)
+	if number == nil {
+		return nil
+	}
+	return hc.GetHeader(hash, *number)
 }
 
 // HasHeader checks if a block header is present in the database or not.
@@ -368,14 +372,13 @@ func (hc *HeaderChain) HasHeader(hash common.Hash, number uint64) bool {
 	if hc.numberCache.Contains(hash) || hc.headerCache.Contains(hash) {
 		return true
 	}
-	ok, _ := hc.chainDb.Has(headerKey(hash, number))
+	return rawdb.HasHeader(hc.chainDb, hash, number)
-	return ok
 }
 
 // GetHeaderByNumber retrieves a block header from the database by number,
 // caching it (associated with its hash) if found.
 func (hc *HeaderChain) GetHeaderByNumber(number uint64) *types.Header {
-	hash := GetCanonicalHash(hc.chainDb, number)
+	hash := rawdb.ReadCanonicalHash(hc.chainDb, number)
 	if hash == (common.Hash{}) {
 		return nil
 	}
@@ -390,9 +393,8 @@ func (hc *HeaderChain) CurrentHeader() *types.Header {
 
 // SetCurrentHeader sets the current head header of the canonical chain.
 func (hc *HeaderChain) SetCurrentHeader(head *types.Header) {
-	if err := WriteHeadHeaderHash(hc.chainDb, head.Hash()); err != nil {
+	rawdb.WriteHeadHeaderHash(hc.chainDb, head.Hash())
-		log.Crit("Failed to insert head header hash", "err", err)
+
-	}
 	hc.currentHeader.Store(head)
 	hc.currentHeaderHash = head.Hash()
 }
@@ -416,13 +418,14 @@ func (hc *HeaderChain) SetHead(head uint64, delFn DeleteCallback) {
 		if delFn != nil {
 			delFn(hash, num)
 		}
-		DeleteHeader(hc.chainDb, hash, num)
+		rawdb.DeleteHeader(hc.chainDb, hash, num)
-		DeleteTd(hc.chainDb, hash, num)
+		rawdb.DeleteTd(hc.chainDb, hash, num)
+
 		hc.currentHeader.Store(hc.GetHeader(hdr.ParentHash, hdr.Number.Uint64()-1))
 	}
 	// Roll back the canonical chain numbering
 	for i := height; i > head; i-- {
-		DeleteCanonicalHash(hc.chainDb, i)
+		rawdb.DeleteCanonicalHash(hc.chainDb, i)
 	}
 	// Clear out any stale content from the caches
 	hc.headerCache.Purge()
@@ -434,9 +437,7 @@ func (hc *HeaderChain) SetHead(head uint64, delFn DeleteCallback) {
 	}
 	hc.currentHeaderHash = hc.CurrentHeader().Hash()
 
-	if err := WriteHeadHeaderHash(hc.chainDb, hc.currentHeaderHash); err != nil {
+	rawdb.WriteHeadHeaderHash(hc.chainDb, hc.currentHeaderHash)
-		log.Crit("Failed to reset head header hash", "err", err)
-	}
 }
 
 // SetGenesis sets a new genesis block header for the chain

core/rawdb/accessors_chain.go

@@ -0,0 +1,381 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package rawdb
+
+import (
+	"bytes"
+	"encoding/binary"
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/rlp"
+)
+
+// ReadCanonicalHash retrieves the hash assigned to a canonical block number.
+func ReadCanonicalHash(db DatabaseReader, number uint64) common.Hash {
+	data, _ := db.Get(append(append(headerPrefix, encodeBlockNumber(number)...), headerHashSuffix...))
+	if len(data) == 0 {
+		return common.Hash{}
+	}
+	return common.BytesToHash(data)
+}
+
+// WriteCanonicalHash stores the hash assigned to a canonical block number.
+func WriteCanonicalHash(db DatabaseWriter, hash common.Hash, number uint64) {
+	key := append(append(headerPrefix, encodeBlockNumber(number)...), headerHashSuffix...)
+	if err := db.Put(key, hash.Bytes()); err != nil {
+		log.Crit("Failed to store number to hash mapping", "err", err)
+	}
+}
+
+// DeleteCanonicalHash removes the number to hash canonical mapping.
+func DeleteCanonicalHash(db DatabaseDeleter, number uint64) {
+	if err := db.Delete(append(append(headerPrefix, encodeBlockNumber(number)...), headerHashSuffix...)); err != nil {
+		log.Crit("Failed to delete number to hash mapping", "err", err)
+	}
+}
+
+// ReadHeaderNumber returns the header number assigned to a hash.
+func ReadHeaderNumber(db DatabaseReader, hash common.Hash) *uint64 {
+	data, _ := db.Get(append(headerNumberPrefix, hash.Bytes()...))
+	if len(data) != 8 {
+		return nil
+	}
+	number := binary.BigEndian.Uint64(data)
+	return &number
+}
+
+// ReadHeadHeaderHash retrieves the hash of the current canonical head header.
+func ReadHeadHeaderHash(db DatabaseReader) common.Hash {
+	data, _ := db.Get(headHeaderKey)
+	if len(data) == 0 {
+		return common.Hash{}
+	}
+	return common.BytesToHash(data)
+}
+
+// WriteHeadHeaderHash stores the hash of the current canonical head header.
+func WriteHeadHeaderHash(db DatabaseWriter, hash common.Hash) {
+	if err := db.Put(headHeaderKey, hash.Bytes()); err != nil {
+		log.Crit("Failed to store last header's hash", "err", err)
+	}
+}
+
+// ReadHeadBlockHash retrieves the hash of the current canonical head block.
+func ReadHeadBlockHash(db DatabaseReader) common.Hash {
+	data, _ := db.Get(headBlockKey)
+	if len(data) == 0 {
+		return common.Hash{}
+	}
+	return common.BytesToHash(data)
+}
+
+// WriteHeadBlockHash stores the head block's hash.
+func WriteHeadBlockHash(db DatabaseWriter, hash common.Hash) {
+	if err := db.Put(headBlockKey, hash.Bytes()); err != nil {
+		log.Crit("Failed to store last block's hash", "err", err)
+	}
+}
+
+// ReadHeadFastBlockHash retrieves the hash of the current fast-sync head block.
+func ReadHeadFastBlockHash(db DatabaseReader) common.Hash {
+	data, _ := db.Get(headFastBlockKey)
+	if len(data) == 0 {
+		return common.Hash{}
+	}
+	return common.BytesToHash(data)
+}
+
+// WriteHeadFastBlockHash stores the hash of the current fast-sync head block.
+func WriteHeadFastBlockHash(db DatabaseWriter, hash common.Hash) {
+	if err := db.Put(headFastBlockKey, hash.Bytes()); err != nil {
+		log.Crit("Failed to store last fast block's hash", "err", err)
+	}
+}
+
+// ReadFastTrieProgress retrieves the number of tries nodes fast synced to allow
+// reporting correct numbers across restarts.
+func ReadFastTrieProgress(db DatabaseReader) uint64 {
+	data, _ := db.Get(fastTrieProgressKey)
+	if len(data) == 0 {
+		return 0
+	}
+	return new(big.Int).SetBytes(data).Uint64()
+}
+
+// WriteFastTrieProgress stores the fast sync trie process counter to support
+// retrieving it across restarts.
+func WriteFastTrieProgress(db DatabaseWriter, count uint64) {
+	if err := db.Put(fastTrieProgressKey, new(big.Int).SetUint64(count).Bytes()); err != nil {
+		log.Crit("Failed to store fast sync trie progress", "err", err)
+	}
+}
+
+// ReadHeaderRLP retrieves a block header in its raw RLP database encoding.
+func ReadHeaderRLP(db DatabaseReader, hash common.Hash, number uint64) rlp.RawValue {
+	data, _ := db.Get(append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...))
+	return data
+}
+
+// HasHeader verifies the existence of a block header corresponding to the hash.
+func HasHeader(db DatabaseReader, hash common.Hash, number uint64) bool {
+	key := append(append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...))
+	if has, err := db.Has(key); !has || err != nil {
+		return false
+	}
+	return true
+}
+
+// ReadHeader retrieves the block header corresponding to the hash.
+func ReadHeader(db DatabaseReader, hash common.Hash, number uint64) *types.Header {
+	data := ReadHeaderRLP(db, hash, number)
+	if len(data) == 0 {
+		return nil
+	}
+	header := new(types.Header)
+	if err := rlp.Decode(bytes.NewReader(data), header); err != nil {
+		log.Error("Invalid block header RLP", "hash", hash, "err", err)
+		return nil
+	}
+	return header
+}
+
+// WriteHeader stores a block header into the database and also stores the hash-
+// to-number mapping.
+func WriteHeader(db DatabaseWriter, header *types.Header) {
+	// Write the hash -> number mapping
+	var (
+		hash    = header.Hash().Bytes()
+		number  = header.Number.Uint64()
+		encoded = encodeBlockNumber(number)
+	)
+	key := append(headerNumberPrefix, hash...)
+	if err := db.Put(key, encoded); err != nil {
+		log.Crit("Failed to store hash to number mapping", "err", err)
+	}
+	// Write the encoded header
+	data, err := rlp.EncodeToBytes(header)
+	if err != nil {
+		log.Crit("Failed to RLP encode header", "err", err)
+	}
+	key = append(append(headerPrefix, encoded...), hash...)
+	if err := db.Put(key, data); err != nil {
+		log.Crit("Failed to store header", "err", err)
+	}
+}
+
+// DeleteHeader removes all block header data associated with a hash.
+func DeleteHeader(db DatabaseDeleter, hash common.Hash, number uint64) {
+	if err := db.Delete(append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...)); err != nil {
+		log.Crit("Failed to delete header", "err", err)
+	}
+	if err := db.Delete(append(headerNumberPrefix, hash.Bytes()...)); err != nil {
+		log.Crit("Failed to delete hash to number mapping", "err", err)
+	}
+}
+
+// ReadBodyRLP retrieves the block body (transactions and uncles) in RLP encoding.
+func ReadBodyRLP(db DatabaseReader, hash common.Hash, number uint64) rlp.RawValue {
+	data, _ := db.Get(append(append(blockBodyPrefix, encodeBlockNumber(number)...), hash.Bytes()...))
+	return data
+}
+
+// WriteBodyRLP stores an RLP encoded block body into the database.
+func WriteBodyRLP(db DatabaseWriter, hash common.Hash, number uint64, rlp rlp.RawValue) {
+	key := append(append(blockBodyPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
+	if err := db.Put(key, rlp); err != nil {
+		log.Crit("Failed to store block body", "err", err)
+	}
+}
+
+// HasBody verifies the existence of a block body corresponding to the hash.
+func HasBody(db DatabaseReader, hash common.Hash, number uint64) bool {
+	key := append(append(blockBodyPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
+	if has, err := db.Has(key); !has || err != nil {
+		return false
+	}
+	return true
+}
+
+// ReadBody retrieves the block body corresponding to the hash.
+func ReadBody(db DatabaseReader, hash common.Hash, number uint64) *types.Body {
+	data := ReadBodyRLP(db, hash, number)
+	if len(data) == 0 {
+		return nil
+	}
+	body := new(types.Body)
+	if err := rlp.Decode(bytes.NewReader(data), body); err != nil {
+		log.Error("Invalid block body RLP", "hash", hash, "err", err)
+		return nil
+	}
+	return body
+}
+
+// WriteBody storea a block body into the database.
+func WriteBody(db DatabaseWriter, hash common.Hash, number uint64, body *types.Body) {
+	data, err := rlp.EncodeToBytes(body)
+	if err != nil {
+		log.Crit("Failed to RLP encode body", "err", err)
+	}
+	WriteBodyRLP(db, hash, number, data)
+}
+
+// DeleteBody removes all block body data associated with a hash.
+func DeleteBody(db DatabaseDeleter, hash common.Hash, number uint64) {
+	if err := db.Delete(append(append(blockBodyPrefix, encodeBlockNumber(number)...), hash.Bytes()...)); err != nil {
+		log.Crit("Failed to delete block body", "err", err)
+	}
+}
+
+// ReadTd retrieves a block's total difficulty corresponding to the hash.
+func ReadTd(db DatabaseReader, hash common.Hash, number uint64) *big.Int {
+	data, _ := db.Get(append(append(append(headerPrefix, encodeBlockNumber(number)...), hash[:]...), headerTDSuffix...))
+	if len(data) == 0 {
+		return nil
+	}
+	td := new(big.Int)
+	if err := rlp.Decode(bytes.NewReader(data), td); err != nil {
+		log.Error("Invalid block total difficulty RLP", "hash", hash, "err", err)
+		return nil
+	}
+	return td
+}
+
+// WriteTd stores the total difficulty of a block into the database.
+func WriteTd(db DatabaseWriter, hash common.Hash, number uint64, td *big.Int) {
+	data, err := rlp.EncodeToBytes(td)
+	if err != nil {
+		log.Crit("Failed to RLP encode block total difficulty", "err", err)
+	}
+	key := append(append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...), headerTDSuffix...)
+	if err := db.Put(key, data); err != nil {
+		log.Crit("Failed to store block total difficulty", "err", err)
+	}
+}
+
+// DeleteTd removes all block total difficulty data associated with a hash.
+func DeleteTd(db DatabaseDeleter, hash common.Hash, number uint64) {
+	if err := db.Delete(append(append(append(headerPrefix, encodeBlockNumber(number)...), hash.Bytes()...), headerTDSuffix...)); err != nil {
+		log.Crit("Failed to delete block total difficulty", "err", err)
+	}
+}
+
+// ReadReceipts retrieves all the transaction receipts belonging to a block.
+func ReadReceipts(db DatabaseReader, hash common.Hash, number uint64) types.Receipts {
+	// Retrieve the flattened receipt slice
+	data, _ := db.Get(append(append(blockReceiptsPrefix, encodeBlockNumber(number)...), hash[:]...))
+	if len(data) == 0 {
+		return nil
+	}
+	// Convert the revceipts from their storage form to their internal representation
+	storageReceipts := []*types.ReceiptForStorage{}
+	if err := rlp.DecodeBytes(data, &storageReceipts); err != nil {
+		log.Error("Invalid receipt array RLP", "hash", hash, "err", err)
+		return nil
+	}
+	receipts := make(types.Receipts, len(storageReceipts))
+	for i, receipt := range storageReceipts {
+		receipts[i] = (*types.Receipt)(receipt)
+	}
+	return receipts
+}
+
+// WriteReceipts stores all the transaction receipts belonging to a block.
+func WriteReceipts(db DatabaseWriter, hash common.Hash, number uint64, receipts types.Receipts) {
+	// Convert the receipts into their storage form and serialize them
+	storageReceipts := make([]*types.ReceiptForStorage, len(receipts))
+	for i, receipt := range receipts {
+		storageReceipts[i] = (*types.ReceiptForStorage)(receipt)
+	}
+	bytes, err := rlp.EncodeToBytes(storageReceipts)
+	if err != nil {
+		log.Crit("Failed to encode block receipts", "err", err)
+	}
+	// Store the flattened receipt slice
+	key := append(append(blockReceiptsPrefix, encodeBlockNumber(number)...), hash.Bytes()...)
+	if err := db.Put(key, bytes); err != nil {
+		log.Crit("Failed to store block receipts", "err", err)
+	}
+}
+
+// DeleteReceipts removes all receipt data associated with a block hash.
+func DeleteReceipts(db DatabaseDeleter, hash common.Hash, number uint64) {
+	if err := db.Delete(append(append(blockReceiptsPrefix, encodeBlockNumber(number)...), hash.Bytes()...)); err != nil {
+		log.Crit("Failed to delete block receipts", "err", err)
+	}
+}
+
+// ReadBlock retrieves an entire block corresponding to the hash, assembling it
+// back from the stored header and body. If either the header or body could not
+// be retrieved nil is returned.
+//
+// Note, due to concurrent download of header and block body the header and thus
+// canonical hash can be stored in the database but the body data not (yet).
+func ReadBlock(db DatabaseReader, hash common.Hash, number uint64) *types.Block {
+	header := ReadHeader(db, hash, number)
+	if header == nil {
+		return nil
+	}
+	body := ReadBody(db, hash, number)
+	if body == nil {
+		return nil
+	}
+	return types.NewBlockWithHeader(header).WithBody(body.Transactions, body.Uncles)
+}
+
+// WriteBlock serializes a block into the database, header and body separately.
+func WriteBlock(db DatabaseWriter, block *types.Block) {
+	WriteBody(db, block.Hash(), block.NumberU64(), block.Body())
+	WriteHeader(db, block.Header())
+}
+
+// DeleteBlock removes all block data associated with a hash.
+func DeleteBlock(db DatabaseDeleter, hash common.Hash, number uint64) {
+	DeleteReceipts(db, hash, number)
+	DeleteHeader(db, hash, number)
+	DeleteBody(db, hash, number)
+	DeleteTd(db, hash, number)
+}
+
+// FindCommonAncestor returns the last common ancestor of two block headers
+func FindCommonAncestor(db DatabaseReader, a, b *types.Header) *types.Header {
+	for bn := b.Number.Uint64(); a.Number.Uint64() > bn; {
+		a = ReadHeader(db, a.ParentHash, a.Number.Uint64()-1)
+		if a == nil {
+			return nil
+		}
+	}
+	for an := a.Number.Uint64(); an < b.Number.Uint64(); {
+		b = ReadHeader(db, b.ParentHash, b.Number.Uint64()-1)
+		if b == nil {
+			return nil
+		}
+	}
+	for a.Hash() != b.Hash() {
+		a = ReadHeader(db, a.ParentHash, a.Number.Uint64()-1)
+		if a == nil {
+			return nil
+		}
+		b = ReadHeader(db, b.ParentHash, b.Number.Uint64()-1)
+		if b == nil {
+			return nil
+		}
+	}
+	return a
+}

core/rawdb/accessors_chain_test.go

@@ -1,4 +1,4 @@
-// Copyright 2015 The go-ethereum Authors
+// Copyright 2018 The go-ethereum Authors
 // This file is part of the go-ethereum library.
 //
 // The go-ethereum library is free software: you can redistribute it and/or modify
@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-package core
+package rawdb
 
 import (
 	"bytes"
@@ -34,19 +34,17 @@ func TestHeaderStorage(t *testing.T) {
 
 	// Create a test header to move around the database and make sure it's really new
 	header := &types.Header{Number: big.NewInt(42), Extra: []byte("test header")}
-	if entry := GetHeader(db, header.Hash(), header.Number.Uint64()); entry != nil {
+	if entry := ReadHeader(db, header.Hash(), header.Number.Uint64()); entry != nil {
 		t.Fatalf("Non existent header returned: %v", entry)
 	}
 	// Write and verify the header in the database
-	if err := WriteHeader(db, header); err != nil {
+	WriteHeader(db, header)
-		t.Fatalf("Failed to write header into database: %v", err)
+	if entry := ReadHeader(db, header.Hash(), header.Number.Uint64()); entry == nil {
-	}
-	if entry := GetHeader(db, header.Hash(), header.Number.Uint64()); entry == nil {
 		t.Fatalf("Stored header not found")
 	} else if entry.Hash() != header.Hash() {
 		t.Fatalf("Retrieved header mismatch: have %v, want %v", entry, header)
 	}
-	if entry := GetHeaderRLP(db, header.Hash(), header.Number.Uint64()); entry == nil {
+	if entry := ReadHeaderRLP(db, header.Hash(), header.Number.Uint64()); entry == nil {
 		t.Fatalf("Stored header RLP not found")
 	} else {
 		hasher := sha3.NewKeccak256()
@@ -58,7 +56,7 @@ func TestHeaderStorage(t *testing.T) {
 	}
 	// Delete the header and verify the execution
 	DeleteHeader(db, header.Hash(), header.Number.Uint64())
-	if entry := GetHeader(db, header.Hash(), header.Number.Uint64()); entry != nil {
+	if entry := ReadHeader(db, header.Hash(), header.Number.Uint64()); entry != nil {
 		t.Fatalf("Deleted header returned: %v", entry)
 	}
 }
@@ -74,19 +72,17 @@ func TestBodyStorage(t *testing.T) {
 	rlp.Encode(hasher, body)
 	hash := common.BytesToHash(hasher.Sum(nil))
 
-	if entry := GetBody(db, hash, 0); entry != nil {
+	if entry := ReadBody(db, hash, 0); entry != nil {
 		t.Fatalf("Non existent body returned: %v", entry)
 	}
 	// Write and verify the body in the database
-	if err := WriteBody(db, hash, 0, body); err != nil {
+	WriteBody(db, hash, 0, body)
-		t.Fatalf("Failed to write body into database: %v", err)
+	if entry := ReadBody(db, hash, 0); entry == nil {
-	}
-	if entry := GetBody(db, hash, 0); entry == nil {
 		t.Fatalf("Stored body not found")
 	} else if types.DeriveSha(types.Transactions(entry.Transactions)) != types.DeriveSha(types.Transactions(body.Transactions)) || types.CalcUncleHash(entry.Uncles) != types.CalcUncleHash(body.Uncles) {
 		t.Fatalf("Retrieved body mismatch: have %v, want %v", entry, body)
 	}
-	if entry := GetBodyRLP(db, hash, 0); entry == nil {
+	if entry := ReadBodyRLP(db, hash, 0); entry == nil {
 		t.Fatalf("Stored body RLP not found")
 	} else {
 		hasher := sha3.NewKeccak256()
@@ -98,7 +94,7 @@ func TestBodyStorage(t *testing.T) {
 	}
 	// Delete the body and verify the execution
 	DeleteBody(db, hash, 0)
-	if entry := GetBody(db, hash, 0); entry != nil {
+	if entry := ReadBody(db, hash, 0); entry != nil {
 		t.Fatalf("Deleted body returned: %v", entry)
 	}
 }
@@ -114,43 +110,41 @@ func TestBlockStorage(t *testing.T) {
 		TxHash:      types.EmptyRootHash,
 		ReceiptHash: types.EmptyRootHash,
 	})
-	if entry := GetBlock(db, block.Hash(), block.NumberU64()); entry != nil {
+	if entry := ReadBlock(db, block.Hash(), block.NumberU64()); entry != nil {
 		t.Fatalf("Non existent block returned: %v", entry)
 	}
-	if entry := GetHeader(db, block.Hash(), block.NumberU64()); entry != nil {
+	if entry := ReadHeader(db, block.Hash(), block.NumberU64()); entry != nil {
 		t.Fatalf("Non existent header returned: %v", entry)
 	}
-	if entry := GetBody(db, block.Hash(), block.NumberU64()); entry != nil {
+	if entry := ReadBody(db, block.Hash(), block.NumberU64()); entry != nil {
 		t.Fatalf("Non existent body returned: %v", entry)
 	}
 	// Write and verify the block in the database
-	if err := WriteBlock(db, block); err != nil {
+	WriteBlock(db, block)
-		t.Fatalf("Failed to write block into database: %v", err)
+	if entry := ReadBlock(db, block.Hash(), block.NumberU64()); entry == nil {
-	}
-	if entry := GetBlock(db, block.Hash(), block.NumberU64()); entry == nil {
 		t.Fatalf("Stored block not found")
 	} else if entry.Hash() != block.Hash() {
 		t.Fatalf("Retrieved block mismatch: have %v, want %v", entry, block)
 	}
-	if entry := GetHeader(db, block.Hash(), block.NumberU64()); entry == nil {
+	if entry := ReadHeader(db, block.Hash(), block.NumberU64()); entry == nil {
 		t.Fatalf("Stored header not found")
 	} else if entry.Hash() != block.Header().Hash() {
 		t.Fatalf("Retrieved header mismatch: have %v, want %v", entry, block.Header())
 	}
-	if entry := GetBody(db, block.Hash(), block.NumberU64()); entry == nil {
+	if entry := ReadBody(db, block.Hash(), block.NumberU64()); entry == nil {
 		t.Fatalf("Stored body not found")
 	} else if types.DeriveSha(types.Transactions(entry.Transactions)) != types.DeriveSha(block.Transactions()) || types.CalcUncleHash(entry.Uncles) != types.CalcUncleHash(block.Uncles()) {
 		t.Fatalf("Retrieved body mismatch: have %v, want %v", entry, block.Body())
 	}
 	// Delete the block and verify the execution
 	DeleteBlock(db, block.Hash(), block.NumberU64())
-	if entry := GetBlock(db, block.Hash(), block.NumberU64()); entry != nil {
+	if entry := ReadBlock(db, block.Hash(), block.NumberU64()); entry != nil {
 		t.Fatalf("Deleted block returned: %v", entry)
 	}
-	if entry := GetHeader(db, block.Hash(), block.NumberU64()); entry != nil {
+	if entry := ReadHeader(db, block.Hash(), block.NumberU64()); entry != nil {
 		t.Fatalf("Deleted header returned: %v", entry)
 	}
-	if entry := GetBody(db, block.Hash(), block.NumberU64()); entry != nil {
+	if entry := ReadBody(db, block.Hash(), block.NumberU64()); entry != nil {
 		t.Fatalf("Deleted body returned: %v", entry)
 	}
 }
@@ -165,31 +159,24 @@ func TestPartialBlockStorage(t *testing.T) {
 		ReceiptHash: types.EmptyRootHash,
 	})
 	// Store a header and check that it's not recognized as a block
-	if err := WriteHeader(db, block.Header()); err != nil {
+	WriteHeader(db, block.Header())
-		t.Fatalf("Failed to write header into database: %v", err)
+	if entry := ReadBlock(db, block.Hash(), block.NumberU64()); entry != nil {
-	}
-	if entry := GetBlock(db, block.Hash(), block.NumberU64()); entry != nil {
 		t.Fatalf("Non existent block returned: %v", entry)
 	}
 	DeleteHeader(db, block.Hash(), block.NumberU64())
 
 	// Store a body and check that it's not recognized as a block
-	if err := WriteBody(db, block.Hash(), block.NumberU64(), block.Body()); err != nil {
+	WriteBody(db, block.Hash(), block.NumberU64(), block.Body())
-		t.Fatalf("Failed to write body into database: %v", err)
+	if entry := ReadBlock(db, block.Hash(), block.NumberU64()); entry != nil {
-	}
-	if entry := GetBlock(db, block.Hash(), block.NumberU64()); entry != nil {
 		t.Fatalf("Non existent block returned: %v", entry)
 	}
 	DeleteBody(db, block.Hash(), block.NumberU64())
 
 	// Store a header and a body separately and check reassembly
-	if err := WriteHeader(db, block.Header()); err != nil {
+	WriteHeader(db, block.Header())
-		t.Fatalf("Failed to write header into database: %v", err)
+	WriteBody(db, block.Hash(), block.NumberU64(), block.Body())
-	}
+
-	if err := WriteBody(db, block.Hash(), block.NumberU64(), block.Body()); err != nil {
+	if entry := ReadBlock(db, block.Hash(), block.NumberU64()); entry == nil {
-		t.Fatalf("Failed to write body into database: %v", err)
-	}
-	if entry := GetBlock(db, block.Hash(), block.NumberU64()); entry == nil {
 		t.Fatalf("Stored block not found")
 	} else if entry.Hash() != block.Hash() {
 		t.Fatalf("Retrieved block mismatch: have %v, want %v", entry, block)
@@ -202,21 +189,19 @@ func TestTdStorage(t *testing.T) {
 
 	// Create a test TD to move around the database and make sure it's really new
 	hash, td := common.Hash{}, big.NewInt(314)
-	if entry := GetTd(db, hash, 0); entry != nil {
+	if entry := ReadTd(db, hash, 0); entry != nil {
 		t.Fatalf("Non existent TD returned: %v", entry)
 	}
 	// Write and verify the TD in the database
-	if err := WriteTd(db, hash, 0, td); err != nil {
+	WriteTd(db, hash, 0, td)
-		t.Fatalf("Failed to write TD into database: %v", err)
+	if entry := ReadTd(db, hash, 0); entry == nil {
-	}
-	if entry := GetTd(db, hash, 0); entry == nil {
 		t.Fatalf("Stored TD not found")
 	} else if entry.Cmp(td) != 0 {
 		t.Fatalf("Retrieved TD mismatch: have %v, want %v", entry, td)
 	}
 	// Delete the TD and verify the execution
 	DeleteTd(db, hash, 0)
-	if entry := GetTd(db, hash, 0); entry != nil {
+	if entry := ReadTd(db, hash, 0); entry != nil {
 		t.Fatalf("Deleted TD returned: %v", entry)
 	}
 }
@@ -227,21 +212,19 @@ func TestCanonicalMappingStorage(t *testing.T) {
 
 	// Create a test canonical number and assinged hash to move around
 	hash, number := common.Hash{0: 0xff}, uint64(314)
-	if entry := GetCanonicalHash(db, number); entry != (common.Hash{}) {
+	if entry := ReadCanonicalHash(db, number); entry != (common.Hash{}) {
 		t.Fatalf("Non existent canonical mapping returned: %v", entry)
 	}
 	// Write and verify the TD in the database
-	if err := WriteCanonicalHash(db, hash, number); err != nil {
+	WriteCanonicalHash(db, hash, number)
-		t.Fatalf("Failed to write canonical mapping into database: %v", err)
+	if entry := ReadCanonicalHash(db, number); entry == (common.Hash{}) {
-	}
-	if entry := GetCanonicalHash(db, number); entry == (common.Hash{}) {
 		t.Fatalf("Stored canonical mapping not found")
 	} else if entry != hash {
 		t.Fatalf("Retrieved canonical mapping mismatch: have %v, want %v", entry, hash)
 	}
 	// Delete the TD and verify the execution
 	DeleteCanonicalHash(db, number)
-	if entry := GetCanonicalHash(db, number); entry != (common.Hash{}) {
+	if entry := ReadCanonicalHash(db, number); entry != (common.Hash{}) {
 		t.Fatalf("Deleted canonical mapping returned: %v", entry)
 	}
 }
@@ -255,82 +238,32 @@ func TestHeadStorage(t *testing.T) {
 	blockFast := types.NewBlockWithHeader(&types.Header{Extra: []byte("test block fast")})
 
 	// Check that no head entries are in a pristine database
-	if entry := GetHeadHeaderHash(db); entry != (common.Hash{}) {
+	if entry := ReadHeadHeaderHash(db); entry != (common.Hash{}) {
 		t.Fatalf("Non head header entry returned: %v", entry)
 	}
-	if entry := GetHeadBlockHash(db); entry != (common.Hash{}) {
+	if entry := ReadHeadBlockHash(db); entry != (common.Hash{}) {
 		t.Fatalf("Non head block entry returned: %v", entry)
 	}
-	if entry := GetHeadFastBlockHash(db); entry != (common.Hash{}) {
+	if entry := ReadHeadFastBlockHash(db); entry != (common.Hash{}) {
 		t.Fatalf("Non fast head block entry returned: %v", entry)
 	}
 	// Assign separate entries for the head header and block
-	if err := WriteHeadHeaderHash(db, blockHead.Hash()); err != nil {
+	WriteHeadHeaderHash(db, blockHead.Hash())
-		t.Fatalf("Failed to write head header hash: %v", err)
+	WriteHeadBlockHash(db, blockFull.Hash())
-	}
+	WriteHeadFastBlockHash(db, blockFast.Hash())
-	if err := WriteHeadBlockHash(db, blockFull.Hash()); err != nil {
+
-		t.Fatalf("Failed to write head block hash: %v", err)
-	}
-	if err := WriteHeadFastBlockHash(db, blockFast.Hash()); err != nil {
-		t.Fatalf("Failed to write fast head block hash: %v", err)
-	}
 	// Check that both heads are present, and different (i.e. two heads maintained)
-	if entry := GetHeadHeaderHash(db); entry != blockHead.Hash() {
+	if entry := ReadHeadHeaderHash(db); entry != blockHead.Hash() {
 		t.Fatalf("Head header hash mismatch: have %v, want %v", entry, blockHead.Hash())
 	}
-	if entry := GetHeadBlockHash(db); entry != blockFull.Hash() {
+	if entry := ReadHeadBlockHash(db); entry != blockFull.Hash() {
 		t.Fatalf("Head block hash mismatch: have %v, want %v", entry, blockFull.Hash())
 	}
-	if entry := GetHeadFastBlockHash(db); entry != blockFast.Hash() {
+	if entry := ReadHeadFastBlockHash(db); entry != blockFast.Hash() {
 		t.Fatalf("Fast head block hash mismatch: have %v, want %v", entry, blockFast.Hash())
 	}
 }
 
-// Tests that positional lookup metadata can be stored and retrieved.
-func TestLookupStorage(t *testing.T) {
-	db, _ := ethdb.NewMemDatabase()
-
-	tx1 := types.NewTransaction(1, common.BytesToAddress([]byte{0x11}), big.NewInt(111), 1111, big.NewInt(11111), []byte{0x11, 0x11, 0x11})
-	tx2 := types.NewTransaction(2, common.BytesToAddress([]byte{0x22}), big.NewInt(222), 2222, big.NewInt(22222), []byte{0x22, 0x22, 0x22})
-	tx3 := types.NewTransaction(3, common.BytesToAddress([]byte{0x33}), big.NewInt(333), 3333, big.NewInt(33333), []byte{0x33, 0x33, 0x33})
-	txs := []*types.Transaction{tx1, tx2, tx3}
-
-	block := types.NewBlock(&types.Header{Number: big.NewInt(314)}, txs, nil, nil)
-
-	// Check that no transactions entries are in a pristine database
-	for i, tx := range txs {
-		if txn, _, _, _ := GetTransaction(db, tx.Hash()); txn != nil {
-			t.Fatalf("tx #%d [%x]: non existent transaction returned: %v", i, tx.Hash(), txn)
-		}
-	}
-	// Insert all the transactions into the database, and verify contents
-	if err := WriteBlock(db, block); err != nil {
-		t.Fatalf("failed to write block contents: %v", err)
-	}
-	if err := WriteTxLookupEntries(db, block); err != nil {
-		t.Fatalf("failed to write transactions: %v", err)
-	}
-	for i, tx := range txs {
-		if txn, hash, number, index := GetTransaction(db, tx.Hash()); txn == nil {
-			t.Fatalf("tx #%d [%x]: transaction not found", i, tx.Hash())
-		} else {
-			if hash != block.Hash() || number != block.NumberU64() || index != uint64(i) {
-				t.Fatalf("tx #%d [%x]: positional metadata mismatch: have %x/%d/%d, want %x/%v/%v", i, tx.Hash(), hash, number, index, block.Hash(), block.NumberU64(), i)
-			}
-			if tx.Hash() != txn.Hash() {
-				t.Fatalf("tx #%d [%x]: transaction mismatch: have %v, want %v", i, tx.Hash(), txn, tx)
-			}
-		}
-	}
-	// Delete the transactions and check purge
-	for i, tx := range txs {
-		DeleteTxLookupEntry(db, tx.Hash())
-		if txn, _, _, _ := GetTransaction(db, tx.Hash()); txn != nil {
-			t.Fatalf("tx #%d [%x]: deleted transaction returned: %v", i, tx.Hash(), txn)
-		}
-	}
-}
-
 // Tests that receipts associated with a single block can be stored and retrieved.
 func TestBlockReceiptStorage(t *testing.T) {
 	db, _ := ethdb.NewMemDatabase()
@@ -361,14 +294,12 @@ func TestBlockReceiptStorage(t *testing.T) {
 
 	// Check that no receipt entries are in a pristine database
 	hash := common.BytesToHash([]byte{0x03, 0x14})
-	if rs := GetBlockReceipts(db, hash, 0); len(rs) != 0 {
+	if rs := ReadReceipts(db, hash, 0); len(rs) != 0 {
 		t.Fatalf("non existent receipts returned: %v", rs)
 	}
 	// Insert the receipt slice into the database and check presence
-	if err := WriteBlockReceipts(db, hash, 0, receipts); err != nil {
+	WriteReceipts(db, hash, 0, receipts)
-		t.Fatalf("failed to write block receipts: %v", err)
+	if rs := ReadReceipts(db, hash, 0); len(rs) == 0 {
-	}
-	if rs := GetBlockReceipts(db, hash, 0); len(rs) == 0 {
 		t.Fatalf("no receipts returned")
 	} else {
 		for i := 0; i < len(receipts); i++ {
@@ -381,8 +312,8 @@ func TestBlockReceiptStorage(t *testing.T) {
 		}
 	}
 	// Delete the receipt slice and check purge
-	DeleteBlockReceipts(db, hash, 0)
+	DeleteReceipts(db, hash, 0)
-	if rs := GetBlockReceipts(db, hash, 0); len(rs) != 0 {
+	if rs := ReadReceipts(db, hash, 0); len(rs) != 0 {
 		t.Fatalf("deleted receipts returned: %v", rs)
 	}
 }

core/rawdb/accessors_indexes.go

@@ -0,0 +1,119 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package rawdb
+
+import (
+	"encoding/binary"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/rlp"
+)
+
+// ReadTxLookupEntry retrieves the positional metadata associated with a transaction
+// hash to allow retrieving the transaction or receipt by hash.
+func ReadTxLookupEntry(db DatabaseReader, hash common.Hash) (common.Hash, uint64, uint64) {
+	data, _ := db.Get(append(txLookupPrefix, hash.Bytes()...))
+	if len(data) == 0 {
+		return common.Hash{}, 0, 0
+	}
+	var entry TxLookupEntry
+	if err := rlp.DecodeBytes(data, &entry); err != nil {
+		log.Error("Invalid transaction lookup entry RLP", "hash", hash, "err", err)
+		return common.Hash{}, 0, 0
+	}
+	return entry.BlockHash, entry.BlockIndex, entry.Index
+}
+
+// WriteTxLookupEntries stores a positional metadata for every transaction from
+// a block, enabling hash based transaction and receipt lookups.
+func WriteTxLookupEntries(db DatabaseWriter, block *types.Block) {
+	for i, tx := range block.Transactions() {
+		entry := TxLookupEntry{
+			BlockHash:  block.Hash(),
+			BlockIndex: block.NumberU64(),
+			Index:      uint64(i),
+		}
+		data, err := rlp.EncodeToBytes(entry)
+		if err != nil {
+			log.Crit("Failed to encode transaction lookup entry", "err", err)
+		}
+		if err := db.Put(append(txLookupPrefix, tx.Hash().Bytes()...), data); err != nil {
+			log.Crit("Failed to store transaction lookup entry", "err", err)
+		}
+	}
+}
+
+// DeleteTxLookupEntry removes all transaction data associated with a hash.
+func DeleteTxLookupEntry(db DatabaseDeleter, hash common.Hash) {
+	db.Delete(append(txLookupPrefix, hash.Bytes()...))
+}
+
+// ReadTransaction retrieves a specific transaction from the database, along with
+// its added positional metadata.
+func ReadTransaction(db DatabaseReader, hash common.Hash) (*types.Transaction, common.Hash, uint64, uint64) {
+	blockHash, blockNumber, txIndex := ReadTxLookupEntry(db, hash)
+	if blockHash == (common.Hash{}) {
+		return nil, common.Hash{}, 0, 0
+	}
+	body := ReadBody(db, blockHash, blockNumber)
+	if body == nil || len(body.Transactions) <= int(txIndex) {
+		log.Error("Transaction referenced missing", "number", blockNumber, "hash", blockHash, "index", txIndex)
+		return nil, common.Hash{}, 0, 0
+	}
+	return body.Transactions[txIndex], blockHash, blockNumber, txIndex
+}
+
+// ReadReceipt retrieves a specific transaction receipt from the database, along with
+// its added positional metadata.
+func ReadReceipt(db DatabaseReader, hash common.Hash) (*types.Receipt, common.Hash, uint64, uint64) {
+	blockHash, blockNumber, receiptIndex := ReadTxLookupEntry(db, hash)
+	if blockHash == (common.Hash{}) {
+		return nil, common.Hash{}, 0, 0
+	}
+	receipts := ReadReceipts(db, blockHash, blockNumber)
+	if len(receipts) <= int(receiptIndex) {
+		log.Error("Receipt refereced missing", "number", blockNumber, "hash", blockHash, "index", receiptIndex)
+		return nil, common.Hash{}, 0, 0
+	}
+	return receipts[receiptIndex], blockHash, blockNumber, receiptIndex
+}
+
+// ReadBloomBits retrieves the compressed bloom bit vector belonging to the given
+// section and bit index from the.
+func ReadBloomBits(db DatabaseReader, bit uint, section uint64, head common.Hash) ([]byte, error) {
+	key := append(append(bloomBitsPrefix, make([]byte, 10)...), head.Bytes()...)
+
+	binary.BigEndian.PutUint16(key[1:], uint16(bit))
+	binary.BigEndian.PutUint64(key[3:], section)
+
+	return db.Get(key)
+}
+
+// WriteBloomBits stores the compressed bloom bits vector belonging to the given
+// section and bit index.
+func WriteBloomBits(db DatabaseWriter, bit uint, section uint64, head common.Hash, bits []byte) {
+	key := append(append(bloomBitsPrefix, make([]byte, 10)...), head.Bytes()...)
+
+	binary.BigEndian.PutUint16(key[1:], uint16(bit))
+	binary.BigEndian.PutUint64(key[3:], section)
+
+	if err := db.Put(key, bits); err != nil {
+		log.Crit("Failed to store bloom bits", "err", err)
+	}
+}

core/rawdb/accessors_indexes_test.go

@@ -0,0 +1,68 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package rawdb
+
+import (
+	"math/big"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethdb"
+)
+
+// Tests that positional lookup metadata can be stored and retrieved.
+func TestLookupStorage(t *testing.T) {
+	db, _ := ethdb.NewMemDatabase()
+
+	tx1 := types.NewTransaction(1, common.BytesToAddress([]byte{0x11}), big.NewInt(111), 1111, big.NewInt(11111), []byte{0x11, 0x11, 0x11})
+	tx2 := types.NewTransaction(2, common.BytesToAddress([]byte{0x22}), big.NewInt(222), 2222, big.NewInt(22222), []byte{0x22, 0x22, 0x22})
+	tx3 := types.NewTransaction(3, common.BytesToAddress([]byte{0x33}), big.NewInt(333), 3333, big.NewInt(33333), []byte{0x33, 0x33, 0x33})
+	txs := []*types.Transaction{tx1, tx2, tx3}
+
+	block := types.NewBlock(&types.Header{Number: big.NewInt(314)}, txs, nil, nil)
+
+	// Check that no transactions entries are in a pristine database
+	for i, tx := range txs {
+		if txn, _, _, _ := ReadTransaction(db, tx.Hash()); txn != nil {
+			t.Fatalf("tx #%d [%x]: non existent transaction returned: %v", i, tx.Hash(), txn)
+		}
+	}
+	// Insert all the transactions into the database, and verify contents
+	WriteBlock(db, block)
+	WriteTxLookupEntries(db, block)
+
+	for i, tx := range txs {
+		if txn, hash, number, index := ReadTransaction(db, tx.Hash()); txn == nil {
+			t.Fatalf("tx #%d [%x]: transaction not found", i, tx.Hash())
+		} else {
+			if hash != block.Hash() || number != block.NumberU64() || index != uint64(i) {
+				t.Fatalf("tx #%d [%x]: positional metadata mismatch: have %x/%d/%d, want %x/%v/%v", i, tx.Hash(), hash, number, index, block.Hash(), block.NumberU64(), i)
+			}
+			if tx.Hash() != txn.Hash() {
+				t.Fatalf("tx #%d [%x]: transaction mismatch: have %v, want %v", i, tx.Hash(), txn, tx)
+			}
+		}
+	}
+	// Delete the transactions and check purge
+	for i, tx := range txs {
+		DeleteTxLookupEntry(db, tx.Hash())
+		if txn, _, _, _ := ReadTransaction(db, tx.Hash()); txn != nil {
+			t.Fatalf("tx #%d [%x]: deleted transaction returned: %v", i, tx.Hash(), txn)
+		}
+	}
+}

core/rawdb/accessors_metadata.go

@@ -0,0 +1,90 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package rawdb
+
+import (
+	"encoding/json"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/params"
+	"github.com/ethereum/go-ethereum/rlp"
+)
+
+// ReadDatabaseVersion retrieves the version number of the database.
+func ReadDatabaseVersion(db DatabaseReader) int {
+	var version int
+
+	enc, _ := db.Get(databaseVerisionKey)
+	rlp.DecodeBytes(enc, &version)
+
+	return version
+}
+
+// WriteDatabaseVersion stores the version number of the database
+func WriteDatabaseVersion(db DatabaseWriter, version int) {
+	enc, _ := rlp.EncodeToBytes(version)
+	if err := db.Put(databaseVerisionKey, enc); err != nil {
+		log.Crit("Failed to store the database version", "err", err)
+	}
+}
+
+// ReadChainConfig retrieves the consensus settings based on the given genesis hash.
+func ReadChainConfig(db DatabaseReader, hash common.Hash) *params.ChainConfig {
+	data, _ := db.Get(append(configPrefix, hash[:]...))
+	if len(data) == 0 {
+		return nil
+	}
+	var config params.ChainConfig
+	if err := json.Unmarshal(data, &config); err != nil {
+		log.Error("Invalid chain config JSON", "hash", hash, "err", err)
+		return nil
+	}
+	return &config
+}
+
+// WriteChainConfig writes the chain config settings to the database.
+func WriteChainConfig(db DatabaseWriter, hash common.Hash, cfg *params.ChainConfig) {
+	if cfg == nil {
+		return
+	}
+	data, err := json.Marshal(cfg)
+	if err != nil {
+		log.Crit("Failed to JSON encode chain config", "err", err)
+	}
+	if err := db.Put(append(configPrefix, hash[:]...), data); err != nil {
+		log.Crit("Failed to store chain config", "err", err)
+	}
+}
+
+// ReadPreimage retrieves a single preimage of the provided hash.
+func ReadPreimage(db DatabaseReader, hash common.Hash) []byte {
+	data, _ := db.Get(append(preimagePrefix, hash.Bytes()...))
+	return data
+}
+
+// WritePreimages writes the provided set of preimages to the database. `number` is the
+// current block number, and is used for debug messages only.
+func WritePreimages(db DatabaseWriter, number uint64, preimages map[common.Hash][]byte) {
+	for hash, preimage := range preimages {
+		if err := db.Put(append(preimagePrefix, hash.Bytes()...), preimage); err != nil {
+			log.Crit("Failed to store trie preimage", "err", err)
+		}
+	}
+	preimageCounter.Inc(int64(len(preimages)))
+	preimageHitCounter.Inc(int64(len(preimages)))
+}

core/rawdb/interfaces.go

@@ -0,0 +1,33 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package rawdb
+
+// DatabaseReader wraps the Has and Get method of a backing data store.
+type DatabaseReader interface {
+	Has(key []byte) (bool, error)
+	Get(key []byte) ([]byte, error)
+}
+
+// DatabaseWriter wraps the Put method of a backing data store.
+type DatabaseWriter interface {
+	Put(key []byte, value []byte) error
+}
+
+// DatabaseDeleter wraps the Delete method of a backing data store.
+type DatabaseDeleter interface {
+	Delete(key []byte) error
+}

core/rawdb/schema.go

@@ -0,0 +1,79 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+// Package rawdb contains a collection of low level database accessors.
+package rawdb
+
+import (
+	"encoding/binary"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/metrics"
+)
+
+// The fields below define the low level database schema prefixing.
+var (
+	// databaseVerisionKey tracks the current database version.
+	databaseVerisionKey = []byte("DatabaseVersion")
+
+	// headHeaderKey tracks the latest know header's hash.
+	headHeaderKey = []byte("LastHeader")
+
+	// headBlockKey tracks the latest know full block's hash.
+	headBlockKey = []byte("LastBlock")
+
+	// headFastBlockKey tracks the latest known incomplete block's hash duirng fast sync.
+	headFastBlockKey = []byte("LastFast")
+
+	// fastTrieProgressKey tracks the number of trie entries imported during fast sync.
+	fastTrieProgressKey = []byte("TrieSync")
+
+	// Data item prefixes (use single byte to avoid mixing data types, avoid `i`, used for indexes).
+	headerPrefix       = []byte("h") // headerPrefix + num (uint64 big endian) + hash -> header
+	headerTDSuffix     = []byte("t") // headerPrefix + num (uint64 big endian) + hash + headerTDSuffix -> td
+	headerHashSuffix   = []byte("n") // headerPrefix + num (uint64 big endian) + headerHashSuffix -> hash
+	headerNumberPrefix = []byte("H") // headerNumberPrefix + hash -> num (uint64 big endian)
+
+	blockBodyPrefix     = []byte("b") // blockBodyPrefix + num (uint64 big endian) + hash -> block body
+	blockReceiptsPrefix = []byte("r") // blockReceiptsPrefix + num (uint64 big endian) + hash -> block receipts
+
+	txLookupPrefix  = []byte("l") // txLookupPrefix + hash -> transaction/receipt lookup metadata
+	bloomBitsPrefix = []byte("B") // bloomBitsPrefix + bit (uint16 big endian) + section (uint64 big endian) + hash -> bloom bits
+
+	preimagePrefix = []byte("secure-key-")      // preimagePrefix + hash -> preimage
+	configPrefix   = []byte("ethereum-config-") // config prefix for the db
+
+	// Chain index prefixes (use `i` + single byte to avoid mixing data types).
+	BloomBitsIndexPrefix = []byte("iB") // BloomBitsIndexPrefix is the data table of a chain indexer to track its progress
+
+	preimageCounter    = metrics.NewRegisteredCounter("db/preimage/total", nil)
+	preimageHitCounter = metrics.NewRegisteredCounter("db/preimage/hits", nil)
+)
+
+// TxLookupEntry is a positional metadata to help looking up the data content of
+// a transaction or receipt given only its hash.
+type TxLookupEntry struct {
+	BlockHash  common.Hash
+	BlockIndex uint64
+	Index      uint64
+}
+
+// encodeBlockNumber encodes a block number as big endian uint64
+func encodeBlockNumber(number uint64) []byte {
+	enc := make([]byte, 8)
+	binary.BigEndian.PutUint64(enc, number)
+	return enc
+}

core/state/state_object.go

@@ -178,9 +178,7 @@ func (self *stateObject) GetState(db Database, key common.Hash) common.Hash {
 		}
 		value.SetBytes(content)
 	}
-	if (value != common.Hash{}) {
 	self.cachedStorage[key] = value
-	}
 	return value
 }
 
@@ -197,7 +195,6 @@ func (self *stateObject) SetState(db Database, key, value common.Hash) {
 func (self *stateObject) setState(key, value common.Hash) {
 	self.cachedStorage[key] = value
 	self.dirtyStorage[key] = value
-
 }
 
 // updateTrie writes cached storage modifications into the object's storage trie.

core/state/statedb.go

@@ -572,27 +572,6 @@ func (self *StateDB) Prepare(thash, bhash common.Hash, ti int) {
 	self.txIndex = ti
 }
 
-// DeleteSuicides flags the suicided objects for deletion so that it
-// won't be referenced again when called / queried up on.
-//
-// DeleteSuicides should not be used for consensus related updates
-// under any circumstances.
-func (s *StateDB) DeleteSuicides() {
-	// Reset refund so that any used-gas calculations can use this method.
-	s.clearJournalAndRefund()
-
-	for addr := range s.stateObjectsDirty {
-		stateObject := s.stateObjects[addr]
-
-		// If the object has been removed by a suicide
-		// flag the object as deleted.
-		if stateObject.suicided {
-			stateObject.deleted = true
-		}
-		delete(s.stateObjectsDirty, addr)
-	}
-}
-
 func (s *StateDB) clearJournalAndRefund() {
 	s.journal = newJournal()
 	s.validRevisions = s.validRevisions[:0]

core/tx_pool.go

@@ -618,7 +618,7 @@ func (pool *TxPool) add(tx *types.Transaction, local bool) (bool, error) {
 	// If the transaction pool is full, discard underpriced transactions
 	if uint64(len(pool.all)) >= pool.config.GlobalSlots+pool.config.GlobalQueue {
 		// If the new transaction is underpriced, don't accept it
-		if pool.priced.Underpriced(tx, pool.locals) {
+		if !local && pool.priced.Underpriced(tx, pool.locals) {
 			log.Trace("Discarding underpriced transaction", "hash", hash, "price", tx.GasPrice())
 			underpricedTxCounter.Inc(1)
 			return false, ErrUnderpriced

core/tx_pool_test.go

@@ -1346,7 +1346,7 @@ func TestTransactionPoolUnderpricing(t *testing.T) {
 	defer sub.Unsubscribe()
 
 	// Create a number of test accounts and fund them
-	keys := make([]*ecdsa.PrivateKey, 3)
+	keys := make([]*ecdsa.PrivateKey, 4)
 	for i := 0; i < len(keys); i++ {
 		keys[i], _ = crypto.GenerateKey()
 		pool.currentState.AddBalance(crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
@@ -1406,18 +1406,22 @@ func TestTransactionPoolUnderpricing(t *testing.T) {
 		t.Fatalf("pool internal state corrupted: %v", err)
 	}
 	// Ensure that adding local transactions can push out even higher priced ones
-	tx := pricedTransaction(1, 100000, big.NewInt(0), keys[2])
+	ltx = pricedTransaction(1, 100000, big.NewInt(0), keys[2])
-	if err := pool.AddLocal(tx); err != nil {
+	if err := pool.AddLocal(ltx); err != nil {
-		t.Fatalf("failed to add underpriced local transaction: %v", err)
+		t.Fatalf("failed to append underpriced local transaction: %v", err)
+	}
+	ltx = pricedTransaction(0, 100000, big.NewInt(0), keys[3])
+	if err := pool.AddLocal(ltx); err != nil {
+		t.Fatalf("failed to add new underpriced local transaction: %v", err)
 	}
 	pending, queued = pool.Stats()
-	if pending != 2 {
+	if pending != 3 {
-		t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
+		t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 3)
 	}
-	if queued != 2 {
+	if queued != 1 {
-		t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 2)
+		t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 1)
 	}
-	if err := validateEvents(events, 1); err != nil {
+	if err := validateEvents(events, 2); err != nil {
 		t.Fatalf("local event firing failed: %v", err)
 	}
 	if err := validateTxPoolInternals(pool); err != nil {

core/vm/contract.go

@@ -139,15 +139,15 @@ func (c *Contract) Value() *big.Int {
 }
 
 // SetCode sets the code to the contract
-func (self *Contract) SetCode(hash common.Hash, code []byte) {
+func (c *Contract) SetCode(hash common.Hash, code []byte) {
-	self.Code = code
+	c.Code = code
-	self.CodeHash = hash
+	c.CodeHash = hash
 }
 
 // SetCallCode sets the code of the contract and address of the backing data
 // object
-func (self *Contract) SetCallCode(addr *common.Address, hash common.Hash, code []byte) {
+func (c *Contract) SetCallCode(addr *common.Address, hash common.Hash, code []byte) {
-	self.Code = code
+	c.Code = code
-	self.CodeHash = hash
+	c.CodeHash = hash
-	self.CodeAddr = addr
+	c.CodeAddr = addr
 }

core/vm/evm.go

@@ -160,6 +160,11 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
 			precompiles = PrecompiledContractsByzantium
 		}
 		if precompiles[addr] == nil && evm.ChainConfig().IsEIP158(evm.BlockNumber) && value.Sign() == 0 {
+			// Calling a non existing account, don't do antything, but ping the tracer
+			if evm.vmConfig.Debug && evm.depth == 0 {
+				evm.vmConfig.Tracer.CaptureStart(caller.Address(), addr, false, input, gas, value)
+				evm.vmConfig.Tracer.CaptureEnd(ret, 0, 0, nil)
+			}
 			return nil, gas, nil
 		}
 		evm.StateDB.CreateAccount(addr)

core/vm/logger.go

@@ -31,9 +31,9 @@ import (
 
 type Storage map[common.Hash]common.Hash
 
-func (self Storage) Copy() Storage {
+func (s Storage) Copy() Storage {
 	cpy := make(Storage)
-	for key, value := range self {
+	for key, value := range s {
 		cpy[key] = value
 	}
 

core/vm/memory.go

@@ -51,14 +51,14 @@ func (m *Memory) Resize(size uint64) {
 }
 
 // Get returns offset + size as a new slice
-func (self *Memory) Get(offset, size int64) (cpy []byte) {
+func (m *Memory) Get(offset, size int64) (cpy []byte) {
 	if size == 0 {
 		return nil
 	}
 
-	if len(self.store) > int(offset) {
+	if len(m.store) > int(offset) {
 		cpy = make([]byte, size)
-		copy(cpy, self.store[offset:offset+size])
+		copy(cpy, m.store[offset:offset+size])
 
 		return
 	}
@@ -67,13 +67,13 @@ func (self *Memory) Get(offset, size int64) (cpy []byte) {
 }
 
 // GetPtr returns the offset + size
-func (self *Memory) GetPtr(offset, size int64) []byte {
+func (m *Memory) GetPtr(offset, size int64) []byte {
 	if size == 0 {
 		return nil
 	}
 
-	if len(self.store) > int(offset) {
+	if len(m.store) > int(offset) {
-		return self.store[offset : offset+size]
+		return m.store[offset : offset+size]
 	}
 
 	return nil

core/vm/opcodes.go

@@ -375,10 +375,10 @@ var opCodeToString = map[OpCode]string{
 	SWAP: "SWAP",
 }
 
-func (o OpCode) String() string {
+func (op OpCode) String() string {
-	str := opCodeToString[o]
+	str := opCodeToString[op]
 	if len(str) == 0 {
-		return fmt.Sprintf("Missing opcode 0x%x", int(o))
+		return fmt.Sprintf("Missing opcode 0x%x", int(op))
 	}
 
 	return str

eth/api.go

@@ -19,6 +19,7 @@ package eth
 import (
 	"compress/gzip"
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"math/big"
@@ -28,6 +29,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/log"
@@ -343,8 +345,10 @@ func NewPrivateDebugAPI(config *params.ChainConfig, eth *Ethereum) *PrivateDebug
 
 // Preimage is a debug API function that returns the preimage for a sha3 hash, if known.
 func (api *PrivateDebugAPI) Preimage(ctx context.Context, hash common.Hash) (hexutil.Bytes, error) {
-	db := core.PreimageTable(api.eth.ChainDb())
+	if preimage := rawdb.ReadPreimage(api.eth.ChainDb(), hash); preimage != nil {
-	return db.Get(hash.Bytes())
+		return preimage, nil
+	}
+	return nil, errors.New("unknown preimage")
 }
 
 // GetBadBLocks returns a list of the last 'bad blocks' that the client has seen on the network

eth/api_backend.go

@@ -25,6 +25,7 @@ import (
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/bloombits"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -96,16 +97,23 @@ func (b *EthApiBackend) StateAndHeaderByNumber(ctx context.Context, blockNr rpc.
 	return stateDb, header, err
 }
 
-func (b *EthApiBackend) GetBlock(ctx context.Context, blockHash common.Hash) (*types.Block, error) {
+func (b *EthApiBackend) GetBlock(ctx context.Context, hash common.Hash) (*types.Block, error) {
-	return b.eth.blockchain.GetBlockByHash(blockHash), nil
+	return b.eth.blockchain.GetBlockByHash(hash), nil
 }
 
-func (b *EthApiBackend) GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error) {
+func (b *EthApiBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
-	return core.GetBlockReceipts(b.eth.chainDb, blockHash, core.GetBlockNumber(b.eth.chainDb, blockHash)), nil
+	if number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash); number != nil {
+		return rawdb.ReadReceipts(b.eth.chainDb, hash, *number), nil
+	}
+	return nil, nil
 }
 
-func (b *EthApiBackend) GetLogs(ctx context.Context, blockHash common.Hash) ([][]*types.Log, error) {
+func (b *EthApiBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error) {
-	receipts := core.GetBlockReceipts(b.eth.chainDb, blockHash, core.GetBlockNumber(b.eth.chainDb, blockHash))
+	number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash)
+	if number == nil {
+		return nil, nil
+	}
+	receipts := rawdb.ReadReceipts(b.eth.chainDb, hash, *number)
 	if receipts == nil {
 		return nil, nil
 	}

eth/api_tracer.go

@@ -29,6 +29,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -201,7 +202,7 @@ func (api *PrivateDebugAPI) traceChain(ctx context.Context, start, end *types.Bl
 						log.Warn("Tracing failed", "hash", tx.Hash(), "block", task.block.NumberU64(), "err", err)
 						break
 					}
-					task.statedb.DeleteSuicides()
+					task.statedb.Finalise(true)
 					task.results[i] = &txTraceResult{Result: res}
 				}
 				// Stream the result back to the user or abort on teardown
@@ -533,7 +534,7 @@ func (api *PrivateDebugAPI) computeStateDB(block *types.Block, reexec uint64) (*
 // and returns them as a JSON object.
 func (api *PrivateDebugAPI) TraceTransaction(ctx context.Context, hash common.Hash, config *TraceConfig) (interface{}, error) {
 	// Retrieve the transaction and assemble its EVM context
-	tx, blockHash, _, index := core.GetTransaction(api.eth.ChainDb(), hash)
+	tx, blockHash, _, index := rawdb.ReadTransaction(api.eth.ChainDb(), hash)
 	if tx == nil {
 		return nil, fmt.Errorf("transaction %x not found", hash)
 	}
@@ -640,7 +641,8 @@ func (api *PrivateDebugAPI) computeTxEnv(blockHash common.Hash, txIndex int, ree
 		if _, _, _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.Gas())); err != nil {
 			return nil, vm.Context{}, nil, fmt.Errorf("tx %x failed: %v", tx.Hash(), err)
 		}
-		statedb.DeleteSuicides()
+		// Ensure any modifications are committed to the state
+		statedb.Finalise(true)
 	}
 	return nil, vm.Context{}, nil, fmt.Errorf("tx index %d out of range for block %x", txIndex, blockHash)
 }

eth/backend.go

@@ -33,6 +33,7 @@ import (
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/bloombits"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/eth/downloader"
@@ -64,7 +65,6 @@ type Ethereum struct {
 
 	// Channel for shutting down the service
 	shutdownChan chan bool // Channel for shutting down the Ethereum
-	stopDbUpgrade func() error // stop chain db sequential key upgrade
 
 	// Handlers
 	txPool          *core.TxPool
@@ -112,7 +112,6 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 	if err != nil {
 		return nil, err
 	}
-	stopDbUpgrade := upgradeDeduplicateData(chainDb)
 	chainConfig, genesisHash, genesisErr := core.SetupGenesisBlock(chainDb, config.Genesis)
 	if _, ok := genesisErr.(*params.ConfigCompatError); genesisErr != nil && !ok {
 		return nil, genesisErr
@@ -127,7 +126,6 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 		accountManager: ctx.AccountManager,
 		engine:         CreateConsensusEngine(ctx, &config.Ethash, chainConfig, chainDb),
 		shutdownChan:   make(chan bool),
-		stopDbUpgrade:  stopDbUpgrade,
 		networkId:      config.NetworkId,
 		gasPrice:       config.GasPrice,
 		etherbase:      config.Etherbase,
@@ -138,11 +136,11 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 	log.Info("Initialising Ethereum protocol", "versions", ProtocolVersions, "network", config.NetworkId)
 
 	if !config.SkipBcVersionCheck {
-		bcVersion := core.GetBlockChainVersion(chainDb)
+		bcVersion := rawdb.ReadDatabaseVersion(chainDb)
 		if bcVersion != core.BlockChainVersion && bcVersion != 0 {
 			return nil, fmt.Errorf("Blockchain DB version mismatch (%d / %d). Run geth upgradedb.\n", bcVersion, core.BlockChainVersion)
 		}
-		core.WriteBlockChainVersion(chainDb, core.BlockChainVersion)
+		rawdb.WriteDatabaseVersion(chainDb, core.BlockChainVersion)
 	}
 	var (
 		vmConfig    = vm.Config{EnablePreimageRecording: config.EnablePreimageRecording}
@@ -156,7 +154,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 	if compat, ok := genesisErr.(*params.ConfigCompatError); ok {
 		log.Warn("Rewinding chain to upgrade configuration", "err", compat)
 		eth.blockchain.SetHead(compat.RewindTo)
-		core.WriteChainConfig(chainDb, genesisHash, chainConfig)
+		rawdb.WriteChainConfig(chainDb, genesisHash, chainConfig)
 	}
 	eth.bloomIndexer.Start(eth.blockchain)
 
@@ -325,13 +323,13 @@ func (s *Ethereum) Etherbase() (eb common.Address, err error) {
 	return common.Address{}, fmt.Errorf("etherbase must be explicitly specified")
 }
 
-// set in js console via admin interface or wrapper from cli flags
+// SetEtherbase sets the mining reward address.
-func (self *Ethereum) SetEtherbase(etherbase common.Address) {
+func (s *Ethereum) SetEtherbase(etherbase common.Address) {
-	self.lock.Lock()
+	s.lock.Lock()
-	self.etherbase = etherbase
+	s.etherbase = etherbase
-	self.lock.Unlock()
+	s.lock.Unlock()
 
-	self.miner.SetEtherbase(etherbase)
+	s.miner.SetEtherbase(etherbase)
 }
 
 func (s *Ethereum) StartMining(local bool) error {
@@ -411,9 +409,6 @@ func (s *Ethereum) Start(srvr *p2p.Server) error {
 // Stop implements node.Service, terminating all internal goroutines used by the
 // Ethereum protocol.
 func (s *Ethereum) Stop() error {
-	if s.stopDbUpgrade != nil {
-		s.stopDbUpgrade()
-	}
 	s.bloomIndexer.Close()
 	s.blockchain.Stop()
 	s.protocolManager.Stop()

eth/bloombits.go

@@ -23,6 +23,7 @@ import (
 	"github.com/ethereum/go-ethereum/common/bitutil"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/bloombits"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/params"
@@ -60,8 +61,8 @@ func (eth *Ethereum) startBloomHandlers() {
 					task := <-request
 					task.Bitsets = make([][]byte, len(task.Sections))
 					for i, section := range task.Sections {
-						head := core.GetCanonicalHash(eth.chainDb, (section+1)*params.BloomBitsBlocks-1)
+						head := rawdb.ReadCanonicalHash(eth.chainDb, (section+1)*params.BloomBitsBlocks-1)
-						if compVector, err := core.GetBloomBits(eth.chainDb, task.Bit, section, head); err == nil {
+						if compVector, err := rawdb.ReadBloomBits(eth.chainDb, task.Bit, section, head); err == nil {
 							if blob, err := bitutil.DecompressBytes(compVector, int(params.BloomBitsBlocks)/8); err == nil {
 								task.Bitsets[i] = blob
 							} else {
@@ -107,7 +108,7 @@ func NewBloomIndexer(db ethdb.Database, size uint64) *core.ChainIndexer {
 		db:   db,
 		size: size,
 	}
-	table := ethdb.NewTable(db, string(core.BloomBitsIndexPrefix))
+	table := ethdb.NewTable(db, string(rawdb.BloomBitsIndexPrefix))
 
 	return core.NewChainIndexer(db, table, backend, size, bloomConfirms, bloomThrottling, "bloombits")
 }
@@ -137,7 +138,7 @@ func (b *BloomIndexer) Commit() error {
 		if err != nil {
 			return err
 		}
-		core.WriteBloomBits(batch, uint(i), b.section, b.head, bitutil.CompressBytes(bits))
+		rawdb.WriteBloomBits(batch, uint(i), b.section, b.head, bitutil.CompressBytes(bits))
 	}
 	return batch.Write()
 }

eth/db_upgrade.go

@@ -1,135 +0,0 @@
-// Copyright 2016 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-// Package eth implements the Ethereum protocol.
-package eth
-
-import (
-	"bytes"
-	"time"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core"
-	"github.com/ethereum/go-ethereum/ethdb"
-	"github.com/ethereum/go-ethereum/log"
-	"github.com/ethereum/go-ethereum/rlp"
-)
-
-var deduplicateData = []byte("dbUpgrade_20170714deduplicateData")
-
-// upgradeDeduplicateData checks the chain database version and
-// starts a background process to make upgrades if necessary.
-// Returns a stop function that blocks until the process has
-// been safely stopped.
-func upgradeDeduplicateData(db ethdb.Database) func() error {
-	// If the database is already converted or empty, bail out
-	data, _ := db.Get(deduplicateData)
-	if len(data) > 0 && data[0] == 42 {
-		return nil
-	}
-	if data, _ := db.Get([]byte("LastHeader")); len(data) == 0 {
-		db.Put(deduplicateData, []byte{42})
-		return nil
-	}
-	// Start the deduplication upgrade on a new goroutine
-	log.Warn("Upgrading database to use lookup entries")
-	stop := make(chan chan error)
-
-	go func() {
-		// Create an iterator to read the entire database and covert old lookup entires
-		it := db.(*ethdb.LDBDatabase).NewIterator()
-		defer func() {
-			if it != nil {
-				it.Release()
-			}
-		}()
-
-		var (
-			converted uint64
-			failed    error
-		)
-		for failed == nil && it.Next() {
-			// Skip any entries that don't look like old transaction meta entries (<hash>0x01)
-			key := it.Key()
-			if len(key) != common.HashLength+1 || key[common.HashLength] != 0x01 {
-				continue
-			}
-			// Skip any entries that don't contain metadata (name clash between <hash>0x01 and <some-prefix><hash>)
-			var meta struct {
-				BlockHash  common.Hash
-				BlockIndex uint64
-				Index      uint64
-			}
-			if err := rlp.DecodeBytes(it.Value(), &meta); err != nil {
-				continue
-			}
-			// Skip any already upgraded entries (clash due to <hash> ending with 0x01 (old suffix))
-			hash := key[:common.HashLength]
-
-			if hash[0] == byte('l') {
-				// Potential clash, the "old" `hash` must point to a live transaction.
-				if tx, _, _, _ := core.GetTransaction(db, common.BytesToHash(hash)); tx == nil || !bytes.Equal(tx.Hash().Bytes(), hash) {
-					continue
-				}
-			}
-			// Convert the old metadata to a new lookup entry, delete duplicate data
-			if failed = db.Put(append([]byte("l"), hash...), it.Value()); failed == nil { // Write the new lookup entry
-				if failed = db.Delete(hash); failed == nil { // Delete the duplicate transaction data
-					if failed = db.Delete(append([]byte("receipts-"), hash...)); failed == nil { // Delete the duplicate receipt data
-						if failed = db.Delete(key); failed != nil { // Delete the old transaction metadata
-							break
-						}
-					}
-				}
-			}
-			// Bump the conversion counter, and recreate the iterator occasionally to
-			// avoid too high memory consumption.
-			converted++
-			if converted%100000 == 0 {
-				it.Release()
-				it = db.(*ethdb.LDBDatabase).NewIterator()
-				it.Seek(key)
-
-				log.Info("Deduplicating database entries", "deduped", converted)
-			}
-			// Check for termination, or continue after a bit of a timeout
-			select {
-			case errc := <-stop:
-				errc <- nil
-				return
-			case <-time.After(time.Microsecond * 100):
-			}
-		}
-		// Upgrade finished, mark a such and terminate
-		if failed == nil {
-			log.Info("Database deduplication successful", "deduped", converted)
-			db.Put(deduplicateData, []byte{42})
-		} else {
-			log.Error("Database deduplication failed", "deduped", converted, "err", failed)
-		}
-		it.Release()
-		it = nil
-
-		errc := <-stop
-		errc <- failed
-	}()
-	// Assembly the cancellation callback
-	return func() error {
-		errc := make(chan error)
-		stop <- errc
-		return <-errc
-	}
-}

eth/downloader/downloader.go

@@ -27,7 +27,7 @@ import (
 
 	ethereum "github.com/ethereum/go-ethereum"
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
@@ -224,7 +224,7 @@ func New(mode SyncMode, stateDb ethdb.Database, mux *event.TypeMux, chain BlockC
 		stateCh:        make(chan dataPack),
 		stateSyncStart: make(chan *stateSync),
 		syncStatsState: stateSyncStats{
-			processed: core.GetTrieSyncProgress(stateDb),
+			processed: rawdb.ReadFastTrieProgress(stateDb),
 		},
 		trackStateReq: make(chan *stateReq),
 	}

eth/downloader/fakepeer.go

@@ -21,6 +21,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 )
@@ -126,7 +127,7 @@ func (p *FakePeer) RequestBodies(hashes []common.Hash) error {
 		uncles [][]*types.Header
 	)
 	for _, hash := range hashes {
-		block := core.GetBlock(p.db, hash, p.hc.GetBlockNumber(hash))
+		block := rawdb.ReadBlock(p.db, hash, *p.hc.GetBlockNumber(hash))
 
 		txs = append(txs, block.Transactions())
 		uncles = append(uncles, block.Uncles())
@@ -140,7 +141,7 @@ func (p *FakePeer) RequestBodies(hashes []common.Hash) error {
 func (p *FakePeer) RequestReceipts(hashes []common.Hash) error {
 	var receipts [][]*types.Receipt
 	for _, hash := range hashes {
-		receipts = append(receipts, core.GetBlockReceipts(p.db, hash, p.hc.GetBlockNumber(hash)))
+		receipts = append(receipts, rawdb.ReadReceipts(p.db, hash, *p.hc.GetBlockNumber(hash)))
 	}
 	p.dl.DeliverReceipts(p.id, receipts)
 	return nil

eth/downloader/statesync.go

@@ -23,7 +23,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/crypto/sha3"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -476,6 +476,6 @@ func (s *stateSync) updateStats(written, duplicate, unexpected int, duration tim
 		log.Info("Imported new state entries", "count", written, "elapsed", common.PrettyDuration(duration), "processed", s.d.syncStatsState.processed, "pending", s.d.syncStatsState.pending, "retry", len(s.tasks), "duplicate", s.d.syncStatsState.duplicate, "unexpected", s.d.syncStatsState.unexpected)
 	}
 	if written > 0 {
-		core.WriteTrieSyncProgress(s.d.stateDB, s.d.syncStatsState.processed)
+		rawdb.WriteFastTrieProgress(s.d.stateDB, s.d.syncStatsState.processed)
 	}
 }

eth/filters/bench_test.go

@@ -25,8 +25,8 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/bitutil"
-	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/bloombits"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
@@ -71,20 +71,20 @@ func benchmarkBloomBits(b *testing.B, sectionSize uint64) {
 	if err != nil {
 		b.Fatalf("error opening database at %v: %v", benchDataDir, err)
 	}
-	head := core.GetHeadBlockHash(db)
+	head := rawdb.ReadHeadBlockHash(db)
 	if head == (common.Hash{}) {
 		b.Fatalf("chain data not found at %v", benchDataDir)
 	}
 
 	clearBloomBits(db)
 	fmt.Println("Generating bloombits data...")
-	headNum := core.GetBlockNumber(db, head)
+	headNum := rawdb.ReadHeaderNumber(db, head)
-	if headNum < sectionSize+512 {
+	if headNum == nil || *headNum < sectionSize+512 {
 		b.Fatalf("not enough blocks for running a benchmark")
 	}
 
 	start := time.Now()
-	cnt := (headNum - 512) / sectionSize
+	cnt := (*headNum - 512) / sectionSize
 	var dataSize, compSize uint64
 	for sectionIdx := uint64(0); sectionIdx < cnt; sectionIdx++ {
 		bc, err := bloombits.NewGenerator(uint(sectionSize))
@@ -93,14 +93,14 @@ func benchmarkBloomBits(b *testing.B, sectionSize uint64) {
 		}
 		var header *types.Header
 		for i := sectionIdx * sectionSize; i < (sectionIdx+1)*sectionSize; i++ {
-			hash := core.GetCanonicalHash(db, i)
+			hash := rawdb.ReadCanonicalHash(db, i)
-			header = core.GetHeader(db, hash, i)
+			header = rawdb.ReadHeader(db, hash, i)
 			if header == nil {
 				b.Fatalf("Error creating bloomBits data")
 			}
 			bc.AddBloom(uint(i-sectionIdx*sectionSize), header.Bloom)
 		}
-		sectionHead := core.GetCanonicalHash(db, (sectionIdx+1)*sectionSize-1)
+		sectionHead := rawdb.ReadCanonicalHash(db, (sectionIdx+1)*sectionSize-1)
 		for i := 0; i < types.BloomBitLength; i++ {
 			data, err := bc.Bitset(uint(i))
 			if err != nil {
@@ -109,7 +109,7 @@ func benchmarkBloomBits(b *testing.B, sectionSize uint64) {
 			comp := bitutil.CompressBytes(data)
 			dataSize += uint64(len(data))
 			compSize += uint64(len(comp))
-			core.WriteBloomBits(db, uint(i), sectionIdx, sectionHead, comp)
+			rawdb.WriteBloomBits(db, uint(i), sectionIdx, sectionHead, comp)
 		}
 		//if sectionIdx%50 == 0 {
 		//	fmt.Println(" section", sectionIdx, "/", cnt)
@@ -180,11 +180,11 @@ func BenchmarkNoBloomBits(b *testing.B) {
 	if err != nil {
 		b.Fatalf("error opening database at %v: %v", benchDataDir, err)
 	}
-	head := core.GetHeadBlockHash(db)
+	head := rawdb.ReadHeadBlockHash(db)
 	if head == (common.Hash{}) {
 		b.Fatalf("chain data not found at %v", benchDataDir)
 	}
-	headNum := core.GetBlockNumber(db, head)
+	headNum := rawdb.ReadHeaderNumber(db, head)
 
 	clearBloomBits(db)
 
@@ -192,10 +192,10 @@ func BenchmarkNoBloomBits(b *testing.B) {
 	start := time.Now()
 	mux := new(event.TypeMux)
 	backend := &testBackend{mux, db, 0, new(event.Feed), new(event.Feed), new(event.Feed), new(event.Feed)}
-	filter := New(backend, 0, int64(headNum), []common.Address{{}}, nil)
+	filter := New(backend, 0, int64(*headNum), []common.Address{{}}, nil)
 	filter.Logs(context.Background())
 	d := time.Since(start)
 	fmt.Println("Finished running filter benchmarks")
-	fmt.Println(" ", d, "total  ", d*time.Duration(1000000)/time.Duration(headNum+1), "per million blocks")
+	fmt.Println(" ", d, "total  ", d*time.Duration(1000000)/time.Duration(*headNum+1), "per million blocks")
 	db.Close()
 }

eth/filters/filter_system.go

@@ -28,6 +28,7 @@ import (
 	ethereum "github.com/ethereum/go-ethereum"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/rpc"
@@ -348,11 +349,11 @@ func (es *EventSystem) lightFilterNewHead(newHeader *types.Header, callBack func
 	for oldh.Hash() != newh.Hash() {
 		if oldh.Number.Uint64() >= newh.Number.Uint64() {
 			oldHeaders = append(oldHeaders, oldh)
-			oldh = core.GetHeader(es.backend.ChainDb(), oldh.ParentHash, oldh.Number.Uint64()-1)
+			oldh = rawdb.ReadHeader(es.backend.ChainDb(), oldh.ParentHash, oldh.Number.Uint64()-1)
 		}
 		if oldh.Number.Uint64() < newh.Number.Uint64() {
 			newHeaders = append(newHeaders, newh)
-			newh = core.GetHeader(es.backend.ChainDb(), newh.ParentHash, newh.Number.Uint64()-1)
+			newh = rawdb.ReadHeader(es.backend.ChainDb(), newh.ParentHash, newh.Number.Uint64()-1)
 			if newh == nil {
 				// happens when CHT syncing, nothing to do
 				newh = oldh

eth/filters/filter_system_test.go

@@ -30,6 +30,7 @@ import (
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/bloombits"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
@@ -56,26 +57,37 @@ func (b *testBackend) EventMux() *event.TypeMux {
 }
 
 func (b *testBackend) HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error) {
-	var hash common.Hash
+	var (
-	var num uint64
+		hash common.Hash
+		num  uint64
+	)
 	if blockNr == rpc.LatestBlockNumber {
-		hash = core.GetHeadBlockHash(b.db)
+		hash = rawdb.ReadHeadBlockHash(b.db)
-		num = core.GetBlockNumber(b.db, hash)
+		number := rawdb.ReadHeaderNumber(b.db, hash)
+		if number == nil {
+			return nil, nil
+		}
+		num = *number
 	} else {
 		num = uint64(blockNr)
-		hash = core.GetCanonicalHash(b.db, num)
+		hash = rawdb.ReadCanonicalHash(b.db, num)
 	}
-	return core.GetHeader(b.db, hash, num), nil
+	return rawdb.ReadHeader(b.db, hash, num), nil
 }
 
-func (b *testBackend) GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error) {
+func (b *testBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
-	number := core.GetBlockNumber(b.db, blockHash)
+	if number := rawdb.ReadHeaderNumber(b.db, hash); number != nil {
-	return core.GetBlockReceipts(b.db, blockHash, number), nil
+		return rawdb.ReadReceipts(b.db, hash, *number), nil
+	}
+	return nil, nil
 }
 
-func (b *testBackend) GetLogs(ctx context.Context, blockHash common.Hash) ([][]*types.Log, error) {
+func (b *testBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error) {
-	number := core.GetBlockNumber(b.db, blockHash)
+	number := rawdb.ReadHeaderNumber(b.db, hash)
-	receipts := core.GetBlockReceipts(b.db, blockHash, number)
+	if number == nil {
+		return nil, nil
+	}
+	receipts := rawdb.ReadReceipts(b.db, hash, *number)
 
 	logs := make([][]*types.Log, len(receipts))
 	for i, receipt := range receipts {
@@ -121,8 +133,8 @@ func (b *testBackend) ServiceFilter(ctx context.Context, session *bloombits.Matc
 				task.Bitsets = make([][]byte, len(task.Sections))
 				for i, section := range task.Sections {
 					if rand.Int()%4 != 0 { // Handle occasional missing deliveries
-						head := core.GetCanonicalHash(b.db, (section+1)*params.BloomBitsBlocks-1)
+						head := rawdb.ReadCanonicalHash(b.db, (section+1)*params.BloomBitsBlocks-1)
-						task.Bitsets[i], _ = core.GetBloomBits(b.db, task.Bit, section, head)
+						task.Bitsets[i], _ = rawdb.ReadBloomBits(b.db, task.Bit, section, head)
 					}
 				}
 				request <- task

eth/filters/filter_test.go

@@ -26,6 +26,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -84,16 +85,10 @@ func BenchmarkFilters(b *testing.B) {
 		}
 	})
 	for i, block := range chain {
-		core.WriteBlock(db, block)
+		rawdb.WriteBlock(db, block)
-		if err := core.WriteCanonicalHash(db, block.Hash(), block.NumberU64()); err != nil {
+		rawdb.WriteCanonicalHash(db, block.Hash(), block.NumberU64())
-			b.Fatalf("failed to insert block number: %v", err)
+		rawdb.WriteHeadBlockHash(db, block.Hash())
-		}
+		rawdb.WriteReceipts(db, block.Hash(), block.NumberU64(), receipts[i])
-		if err := core.WriteHeadBlockHash(db, block.Hash()); err != nil {
-			b.Fatalf("failed to insert block number: %v", err)
-		}
-		if err := core.WriteBlockReceipts(db, block.Hash(), block.NumberU64(), receipts[i]); err != nil {
-			b.Fatal("error writing block receipts:", err)
-		}
 	}
 	b.ResetTimer()
 
@@ -174,16 +169,10 @@ func TestFilters(t *testing.T) {
 		}
 	})
 	for i, block := range chain {
-		core.WriteBlock(db, block)
+		rawdb.WriteBlock(db, block)
-		if err := core.WriteCanonicalHash(db, block.Hash(), block.NumberU64()); err != nil {
+		rawdb.WriteCanonicalHash(db, block.Hash(), block.NumberU64())
-			t.Fatalf("failed to insert block number: %v", err)
+		rawdb.WriteHeadBlockHash(db, block.Hash())
-		}
+		rawdb.WriteReceipts(db, block.Hash(), block.NumberU64(), receipts[i])
-		if err := core.WriteHeadBlockHash(db, block.Hash()); err != nil {
-			t.Fatalf("failed to insert block number: %v", err)
-		}
-		if err := core.WriteBlockReceipts(db, block.Hash(), block.NumberU64(), receipts[i]); err != nil {
-			t.Fatal("error writing block receipts:", err)
-		}
 	}
 
 	filter := New(backend, 0, -1, []common.Address{addr}, [][]common.Hash{{hash1, hash2, hash3, hash4}})

eth/handler.go

@@ -725,25 +725,25 @@ func (pm *ProtocolManager) BroadcastTx(hash common.Hash, tx *types.Transaction)
 }
 
 // Mined broadcast loop
-func (self *ProtocolManager) minedBroadcastLoop() {
+func (pm *ProtocolManager) minedBroadcastLoop() {
 	// automatically stops if unsubscribe
-	for obj := range self.minedBlockSub.Chan() {
+	for obj := range pm.minedBlockSub.Chan() {
 		switch ev := obj.Data.(type) {
 		case core.NewMinedBlockEvent:
-			self.BroadcastBlock(ev.Block, true)  // First propagate block to peers
+			pm.BroadcastBlock(ev.Block, true)  // First propagate block to peers
-			self.BroadcastBlock(ev.Block, false) // Only then announce to the rest
+			pm.BroadcastBlock(ev.Block, false) // Only then announce to the rest
 		}
 	}
 }
 
-func (self *ProtocolManager) txBroadcastLoop() {
+func (pm *ProtocolManager) txBroadcastLoop() {
 	for {
 		select {
-		case event := <-self.txCh:
+		case event := <-pm.txCh:
-			self.BroadcastTx(event.Tx.Hash(), event.Tx)
+			pm.BroadcastTx(event.Tx.Hash(), event.Tx)
 
 		// Err() channel will be closed when unsubscribing.
-		case <-self.txSub.Err():
+		case <-pm.txSub.Err():
 			return
 		}
 	}
@@ -760,13 +760,13 @@ type NodeInfo struct {
 }
 
 // NodeInfo retrieves some protocol metadata about the running host node.
-func (self *ProtocolManager) NodeInfo() *NodeInfo {
+func (pm *ProtocolManager) NodeInfo() *NodeInfo {
-	currentBlock := self.blockchain.CurrentBlock()
+	currentBlock := pm.blockchain.CurrentBlock()
 	return &NodeInfo{
-		Network:    self.networkId,
+		Network:    pm.networkId,
-		Difficulty: self.blockchain.GetTd(currentBlock.Hash(), currentBlock.NumberU64()),
+		Difficulty: pm.blockchain.GetTd(currentBlock.Hash(), currentBlock.NumberU64()),
-		Genesis:    self.blockchain.Genesis().Hash(),
+		Genesis:    pm.blockchain.Genesis().Hash(),
-		Config:     self.blockchain.Config(),
+		Config:     pm.blockchain.Config(),
 		Head:       currentBlock.Hash(),
 	}
 }

event/filter/filter.go

@@ -45,37 +45,37 @@ func New() *Filters {
 	}
 }
 
-func (self *Filters) Start() {
+func (f *Filters) Start() {
-	go self.loop()
+	go f.loop()
 }
 
-func (self *Filters) Stop() {
+func (f *Filters) Stop() {
-	close(self.quit)
+	close(f.quit)
 }
 
-func (self *Filters) Notify(filter Filter, data interface{}) {
+func (f *Filters) Notify(filter Filter, data interface{}) {
-	self.ch <- FilterEvent{filter, data}
+	f.ch <- FilterEvent{filter, data}
 }
 
-func (self *Filters) Install(watcher Filter) int {
+func (f *Filters) Install(watcher Filter) int {
-	self.watchers[self.id] = watcher
+	f.watchers[f.id] = watcher
-	self.id++
+	f.id++
 
-	return self.id - 1
+	return f.id - 1
 }
 
-func (self *Filters) Uninstall(id int) {
+func (f *Filters) Uninstall(id int) {
-	delete(self.watchers, id)
+	delete(f.watchers, id)
 }
 
-func (self *Filters) loop() {
+func (f *Filters) loop() {
 out:
 	for {
 		select {
-		case <-self.quit:
+		case <-f.quit:
 			break out
-		case event := <-self.ch:
+		case event := <-f.ch:
-			for _, watcher := range self.watchers {
+			for _, watcher := range f.watchers {
 				if reflect.TypeOf(watcher) == reflect.TypeOf(event.filter) {
 					if watcher.Compare(event.filter) {
 						watcher.Trigger(event.data)
@@ -86,10 +86,10 @@ out:
 	}
 }
 
-func (self *Filters) Match(a, b Filter) bool {
+func (f *Filters) Match(a, b Filter) bool {
 	return reflect.TypeOf(a) == reflect.TypeOf(b) && a.Compare(b)
 }
 
-func (self *Filters) Get(i int) Filter {
+func (f *Filters) Get(i int) Filter {
-	return self.watchers[i]
+	return f.watchers[i]
 }

internal/ethapi/api.go

@@ -33,6 +33,7 @@ import (
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
@@ -1006,7 +1007,7 @@ func (s *PublicTransactionPoolAPI) GetTransactionCount(ctx context.Context, addr
 // GetTransactionByHash returns the transaction for the given hash
 func (s *PublicTransactionPoolAPI) GetTransactionByHash(ctx context.Context, hash common.Hash) *RPCTransaction {
 	// Try to return an already finalized transaction
-	if tx, blockHash, blockNumber, index := core.GetTransaction(s.b.ChainDb(), hash); tx != nil {
+	if tx, blockHash, blockNumber, index := rawdb.ReadTransaction(s.b.ChainDb(), hash); tx != nil {
 		return newRPCTransaction(tx, blockHash, blockNumber, index)
 	}
 	// No finalized transaction, try to retrieve it from the pool
@@ -1022,7 +1023,7 @@ func (s *PublicTransactionPoolAPI) GetRawTransactionByHash(ctx context.Context,
 	var tx *types.Transaction
 
 	// Retrieve a finalized transaction, or a pooled otherwise
-	if tx, _, _, _ = core.GetTransaction(s.b.ChainDb(), hash); tx == nil {
+	if tx, _, _, _ = rawdb.ReadTransaction(s.b.ChainDb(), hash); tx == nil {
 		if tx = s.b.GetPoolTransaction(hash); tx == nil {
 			// Transaction not found anywhere, abort
 			return nil, nil
@@ -1034,7 +1035,7 @@ func (s *PublicTransactionPoolAPI) GetRawTransactionByHash(ctx context.Context,
 
 // GetTransactionReceipt returns the transaction receipt for the given transaction hash.
 func (s *PublicTransactionPoolAPI) GetTransactionReceipt(ctx context.Context, hash common.Hash) (map[string]interface{}, error) {
-	tx, blockHash, blockNumber, index := core.GetTransaction(s.b.ChainDb(), hash)
+	tx, blockHash, blockNumber, index := rawdb.ReadTransaction(s.b.ChainDb(), hash)
 	if tx == nil {
 		return nil, nil
 	}

internal/jsre/jsre.go

@@ -102,8 +102,8 @@ func randomSource() *rand.Rand {
 // call the functions of the otto vm directly to circumvent the queue. These
 // functions should be used if and only if running a routine that was already
 // called from JS through an RPC call.
-func (self *JSRE) runEventLoop() {
+func (re *JSRE) runEventLoop() {
-	defer close(self.closed)
+	defer close(re.closed)
 
 	vm := otto.New()
 	r := randomSource()
@@ -202,14 +202,14 @@ loop:
 					break loop
 				}
 			}
-		case req := <-self.evalQueue:
+		case req := <-re.evalQueue:
 			// run the code, send the result back
 			req.fn(vm)
 			close(req.done)
 			if waitForCallbacks && (len(registry) == 0) {
 				break loop
 			}
-		case waitForCallbacks = <-self.stopEventLoop:
+		case waitForCallbacks = <-re.stopEventLoop:
 			if !waitForCallbacks || (len(registry) == 0) {
 				break loop
 			}
@@ -223,31 +223,31 @@ loop:
 }
 
 // Do executes the given function on the JS event loop.
-func (self *JSRE) Do(fn func(*otto.Otto)) {
+func (re *JSRE) Do(fn func(*otto.Otto)) {
 	done := make(chan bool)
 	req := &evalReq{fn, done}
-	self.evalQueue <- req
+	re.evalQueue <- req
 	<-done
 }
 
 // stops the event loop before exit, optionally waits for all timers to expire
-func (self *JSRE) Stop(waitForCallbacks bool) {
+func (re *JSRE) Stop(waitForCallbacks bool) {
 	select {
-	case <-self.closed:
+	case <-re.closed:
-	case self.stopEventLoop <- waitForCallbacks:
+	case re.stopEventLoop <- waitForCallbacks:
-		<-self.closed
+		<-re.closed
 	}
 }
 
 // Exec(file) loads and runs the contents of a file
 // if a relative path is given, the jsre's assetPath is used
-func (self *JSRE) Exec(file string) error {
+func (re *JSRE) Exec(file string) error {
-	code, err := ioutil.ReadFile(common.AbsolutePath(self.assetPath, file))
+	code, err := ioutil.ReadFile(common.AbsolutePath(re.assetPath, file))
 	if err != nil {
 		return err
 	}
 	var script *otto.Script
-	self.Do(func(vm *otto.Otto) {
+	re.Do(func(vm *otto.Otto) {
 		script, err = vm.Compile(file, code)
 		if err != nil {
 			return
@@ -259,36 +259,36 @@ func (self *JSRE) Exec(file string) error {
 
 // Bind assigns value v to a variable in the JS environment
 // This method is deprecated, use Set.
-func (self *JSRE) Bind(name string, v interface{}) error {
+func (re *JSRE) Bind(name string, v interface{}) error {
-	return self.Set(name, v)
+	return re.Set(name, v)
 }
 
 // Run runs a piece of JS code.
-func (self *JSRE) Run(code string) (v otto.Value, err error) {
+func (re *JSRE) Run(code string) (v otto.Value, err error) {
-	self.Do(func(vm *otto.Otto) { v, err = vm.Run(code) })
+	re.Do(func(vm *otto.Otto) { v, err = vm.Run(code) })
 	return v, err
 }
 
 // Get returns the value of a variable in the JS environment.
-func (self *JSRE) Get(ns string) (v otto.Value, err error) {
+func (re *JSRE) Get(ns string) (v otto.Value, err error) {
-	self.Do(func(vm *otto.Otto) { v, err = vm.Get(ns) })
+	re.Do(func(vm *otto.Otto) { v, err = vm.Get(ns) })
 	return v, err
 }
 
 // Set assigns value v to a variable in the JS environment.
-func (self *JSRE) Set(ns string, v interface{}) (err error) {
+func (re *JSRE) Set(ns string, v interface{}) (err error) {
-	self.Do(func(vm *otto.Otto) { err = vm.Set(ns, v) })
+	re.Do(func(vm *otto.Otto) { err = vm.Set(ns, v) })
 	return err
 }
 
 // loadScript executes a JS script from inside the currently executing JS code.
-func (self *JSRE) loadScript(call otto.FunctionCall) otto.Value {
+func (re *JSRE) loadScript(call otto.FunctionCall) otto.Value {
 	file, err := call.Argument(0).ToString()
 	if err != nil {
 		// TODO: throw exception
 		return otto.FalseValue()
 	}
-	file = common.AbsolutePath(self.assetPath, file)
+	file = common.AbsolutePath(re.assetPath, file)
 	source, err := ioutil.ReadFile(file)
 	if err != nil {
 		// TODO: throw exception
@@ -305,10 +305,10 @@ func (self *JSRE) loadScript(call otto.FunctionCall) otto.Value {
 
 // Evaluate executes code and pretty prints the result to the specified output
 // stream.
-func (self *JSRE) Evaluate(code string, w io.Writer) error {
+func (re *JSRE) Evaluate(code string, w io.Writer) error {
 	var fail error
 
-	self.Do(func(vm *otto.Otto) {
+	re.Do(func(vm *otto.Otto) {
 		val, err := vm.Run(code)
 		if err != nil {
 			prettyError(vm, err, w)
@@ -321,8 +321,8 @@ func (self *JSRE) Evaluate(code string, w io.Writer) error {
 }
 
 // Compile compiles and then runs a piece of JS code.
-func (self *JSRE) Compile(filename string, src interface{}) (err error) {
+func (re *JSRE) Compile(filename string, src interface{}) (err error) {
-	self.Do(func(vm *otto.Otto) { _, err = compileAndRun(vm, filename, src) })
+	re.Do(func(vm *otto.Otto) { _, err = compileAndRun(vm, filename, src) })
 	return err
 }
 

les/api_backend.go

@@ -25,6 +25,7 @@ import (
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/bloombits"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -83,16 +84,22 @@ func (b *LesApiBackend) GetBlock(ctx context.Context, blockHash common.Hash) (*t
 	return b.eth.blockchain.GetBlockByHash(ctx, blockHash)
 }
 
-func (b *LesApiBackend) GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error) {
+func (b *LesApiBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
-	return light.GetBlockReceipts(ctx, b.eth.odr, blockHash, core.GetBlockNumber(b.eth.chainDb, blockHash))
+	if number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash); number != nil {
+		return light.GetBlockReceipts(ctx, b.eth.odr, hash, *number)
+	}
+	return nil, nil
 }
 
-func (b *LesApiBackend) GetLogs(ctx context.Context, blockHash common.Hash) ([][]*types.Log, error) {
+func (b *LesApiBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error) {
-	return light.GetBlockLogs(ctx, b.eth.odr, blockHash, core.GetBlockNumber(b.eth.chainDb, blockHash))
+	if number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash); number != nil {
+		return light.GetBlockLogs(ctx, b.eth.odr, hash, *number)
+	}
+	return nil, nil
 }
 
-func (b *LesApiBackend) GetTd(blockHash common.Hash) *big.Int {
+func (b *LesApiBackend) GetTd(hash common.Hash) *big.Int {
-	return b.eth.blockchain.GetTdByHash(blockHash)
+	return b.eth.blockchain.GetTdByHash(hash)
 }
 
 func (b *LesApiBackend) GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header, vmCfg vm.Config) (*vm.EVM, func() error, error) {

les/backend.go

@@ -28,6 +28,7 @@ import (
 	"github.com/ethereum/go-ethereum/consensus"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/bloombits"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/eth/downloader"
@@ -122,7 +123,7 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
 	if compat, ok := genesisErr.(*params.ConfigCompatError); ok {
 		log.Warn("Rewinding chain to upgrade configuration", "err", compat)
 		leth.blockchain.SetHead(compat.RewindTo)
-		core.WriteChainConfig(chainDb, genesisHash, chainConfig)
+		rawdb.WriteChainConfig(chainDb, genesisHash, chainConfig)
 	}
 
 	leth.txPool = light.NewTxPool(leth.chainConfig, leth.blockchain, leth.relay)

les/distributor_test.go

@@ -97,9 +97,8 @@ func (p *testDistPeer) waitBefore(cost uint64) (time.Duration, float64) {
 	p.lock.RUnlock()
 	if sumCost < testDistBufLimit {
 		return 0, float64(testDistBufLimit-sumCost) / float64(testDistBufLimit)
-	} else {
-		return time.Duration(sumCost - testDistBufLimit), 0
 	}
+	return time.Duration(sumCost - testDistBufLimit), 0
 }
 
 func (p *testDistPeer) canQueue() bool {

les/fetcher.go

@@ -25,7 +25,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/mclock"
 	"github.com/ethereum/go-ethereum/consensus"
-	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/light"
 	"github.com/ethereum/go-ethereum/log"
@@ -280,7 +280,7 @@ func (f *lightFetcher) announce(p *peer, head *announceData) {
 			// if one of root's children is canonical, keep it, delete other branches and root itself
 			var newRoot *fetcherTreeNode
 			for i, nn := range fp.root.children {
-				if core.GetCanonicalHash(f.pm.chainDb, nn.number) == nn.hash {
+				if rawdb.ReadCanonicalHash(f.pm.chainDb, nn.number) == nn.hash {
 					fp.root.children = append(fp.root.children[:i], fp.root.children[i+1:]...)
 					nn.parent = nil
 					newRoot = nn
@@ -363,7 +363,7 @@ func (f *lightFetcher) peerHasBlock(p *peer, hash common.Hash, number uint64) bo
 	//
 	// when syncing, just check if it is part of the known chain, there is nothing better we
 	// can do since we do not know the most recent block hash yet
-	return core.GetCanonicalHash(f.pm.chainDb, fp.root.number) == fp.root.hash && core.GetCanonicalHash(f.pm.chainDb, number) == hash
+	return rawdb.ReadCanonicalHash(f.pm.chainDb, fp.root.number) == fp.root.hash && rawdb.ReadCanonicalHash(f.pm.chainDb, number) == hash
 }
 
 // requestAmount calculates the amount of headers to be downloaded starting

les/handler.go

@@ -29,6 +29,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/consensus"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/eth/downloader"
@@ -528,11 +529,13 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 				break
 			}
 			// Retrieve the requested block body, stopping if enough was found
-			if data := core.GetBodyRLP(pm.chainDb, hash, core.GetBlockNumber(pm.chainDb, hash)); len(data) != 0 {
+			if number := rawdb.ReadHeaderNumber(pm.chainDb, hash); number != nil {
+				if data := rawdb.ReadBodyRLP(pm.chainDb, hash, *number); len(data) != 0 {
 					bodies = append(bodies, data)
 					bytes += len(data)
 				}
 			}
+		}
 		bv, rcost := p.fcClient.RequestProcessed(costs.baseCost + uint64(reqCnt)*costs.reqCost)
 		pm.server.fcCostStats.update(msg.Code, uint64(reqCnt), rcost)
 		return p.SendBlockBodiesRLP(req.ReqID, bv, bodies)
@@ -579,7 +582,8 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 		}
 		for _, req := range req.Reqs {
 			// Retrieve the requested state entry, stopping if enough was found
-			if header := core.GetHeader(pm.chainDb, req.BHash, core.GetBlockNumber(pm.chainDb, req.BHash)); header != nil {
+			if number := rawdb.ReadHeaderNumber(pm.chainDb, req.BHash); number != nil {
+				if header := rawdb.ReadHeader(pm.chainDb, req.BHash, *number); header != nil {
 					statedb, err := pm.blockchain.State()
 					if err != nil {
 						continue
@@ -596,6 +600,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 					}
 				}
 			}
+		}
 		bv, rcost := p.fcClient.RequestProcessed(costs.baseCost + uint64(reqCnt)*costs.reqCost)
 		pm.server.fcCostStats.update(msg.Code, uint64(reqCnt), rcost)
 		return p.SendCode(req.ReqID, bv, data)
@@ -645,7 +650,10 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 				break
 			}
 			// Retrieve the requested block's receipts, skipping if unknown to us
-			results := core.GetBlockReceipts(pm.chainDb, hash, core.GetBlockNumber(pm.chainDb, hash))
+			var results types.Receipts
+			if number := rawdb.ReadHeaderNumber(pm.chainDb, hash); number != nil {
+				results = rawdb.ReadReceipts(pm.chainDb, hash, *number)
+			}
 			if results == nil {
 				if header := pm.blockchain.GetHeaderByHash(hash); header == nil || header.ReceiptHash != types.EmptyRootHash {
 					continue
@@ -705,7 +713,8 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 		}
 		for _, req := range req.Reqs {
 			// Retrieve the requested state entry, stopping if enough was found
-			if header := core.GetHeader(pm.chainDb, req.BHash, core.GetBlockNumber(pm.chainDb, req.BHash)); header != nil {
+			if number := rawdb.ReadHeaderNumber(pm.chainDb, req.BHash); number != nil {
+				if header := rawdb.ReadHeader(pm.chainDb, req.BHash, *number); header != nil {
 					statedb, err := pm.blockchain.State()
 					if err != nil {
 						continue
@@ -731,6 +740,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 					}
 				}
 			}
+		}
 		bv, rcost := p.fcClient.RequestProcessed(costs.baseCost + uint64(reqCnt)*costs.reqCost)
 		pm.server.fcCostStats.update(msg.Code, uint64(reqCnt), rcost)
 		return p.SendProofs(req.ReqID, bv, proofs)
@@ -763,11 +773,13 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 			if statedb == nil || req.BHash != lastBHash {
 				statedb, root, lastBHash = nil, common.Hash{}, req.BHash
 
-				if header := core.GetHeader(pm.chainDb, req.BHash, core.GetBlockNumber(pm.chainDb, req.BHash)); header != nil {
+				if number := rawdb.ReadHeaderNumber(pm.chainDb, req.BHash); number != nil {
+					if header := rawdb.ReadHeader(pm.chainDb, req.BHash, *number); header != nil {
 						statedb, _ = pm.blockchain.State()
 						root = header.Root
 					}
 				}
+			}
 			if statedb == nil {
 				continue
 			}
@@ -859,7 +871,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 		trieDb := trie.NewDatabase(ethdb.NewTable(pm.chainDb, light.ChtTablePrefix))
 		for _, req := range req.Reqs {
 			if header := pm.blockchain.GetHeaderByNumber(req.BlockNum); header != nil {
-				sectionHead := core.GetCanonicalHash(pm.chainDb, req.ChtNum*light.CHTFrequencyServer-1)
+				sectionHead := rawdb.ReadCanonicalHash(pm.chainDb, req.ChtNum*light.CHTFrequencyServer-1)
 				if root := light.GetChtRoot(pm.chainDb, req.ChtNum-1, sectionHead); root != (common.Hash{}) {
 					trie, err := trie.New(root, trieDb)
 					if err != nil {
@@ -1114,10 +1126,10 @@ func (pm *ProtocolManager) getAccount(statedb *state.StateDB, root, hash common.
 func (pm *ProtocolManager) getHelperTrie(id uint, idx uint64) (common.Hash, string) {
 	switch id {
 	case htCanonical:
-		sectionHead := core.GetCanonicalHash(pm.chainDb, (idx+1)*light.CHTFrequencyClient-1)
+		sectionHead := rawdb.ReadCanonicalHash(pm.chainDb, (idx+1)*light.CHTFrequencyClient-1)
 		return light.GetChtV2Root(pm.chainDb, idx, sectionHead), light.ChtTablePrefix
 	case htBloomBits:
-		sectionHead := core.GetCanonicalHash(pm.chainDb, (idx+1)*light.BloomTrieFrequency-1)
+		sectionHead := rawdb.ReadCanonicalHash(pm.chainDb, (idx+1)*light.BloomTrieFrequency-1)
 		return light.GetBloomTrieRoot(pm.chainDb, idx, sectionHead), light.BloomTrieTablePrefix
 	}
 	return common.Hash{}, ""
@@ -1128,8 +1140,8 @@ func (pm *ProtocolManager) getHelperTrieAuxData(req HelperTrieReq) []byte {
 	switch {
 	case req.Type == htCanonical && req.AuxReq == auxHeader && len(req.Key) == 8:
 		blockNum := binary.BigEndian.Uint64(req.Key)
-		hash := core.GetCanonicalHash(pm.chainDb, blockNum)
+		hash := rawdb.ReadCanonicalHash(pm.chainDb, blockNum)
-		return core.GetHeaderRLP(pm.chainDb, hash, blockNum)
+		return rawdb.ReadHeaderRLP(pm.chainDb, hash, blockNum)
 	}
 	return nil
 }
@@ -1142,9 +1154,9 @@ func (pm *ProtocolManager) txStatus(hashes []common.Hash) []txStatus {
 
 		// If the transaction is unknown to the pool, try looking it up locally
 		if stat == core.TxStatusUnknown {
-			if block, number, index := core.GetTxLookupEntry(pm.chainDb, hashes[i]); block != (common.Hash{}) {
+			if block, number, index := rawdb.ReadTxLookupEntry(pm.chainDb, hashes[i]); block != (common.Hash{}) {
 				stats[i].Status = core.TxStatusIncluded
-				stats[i].Lookup = &core.TxLookupEntry{BlockHash: block, BlockIndex: number, Index: index}
+				stats[i].Lookup = &rawdb.TxLookupEntry{BlockHash: block, BlockIndex: number, Index: index}
 			}
 		}
 	}

les/handler_test.go

@@ -26,6 +26,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/eth/downloader"
@@ -304,7 +305,7 @@ func testGetReceipt(t *testing.T, protocol int) {
 		block := bc.GetBlockByNumber(i)
 
 		hashes = append(hashes, block.Hash())
-		receipts = append(receipts, core.GetBlockReceipts(db, block.Hash(), block.NumberU64()))
+		receipts = append(receipts, rawdb.ReadReceipts(db, block.Hash(), block.NumberU64()))
 	}
 	// Send the hash request and verify the response
 	cost := peer.GetRequestCost(GetReceiptsMsg, len(hashes))
@@ -555,9 +556,9 @@ func TestTransactionStatusLes2(t *testing.T) {
 	}
 
 	// check if their status is included now
-	block1hash := core.GetCanonicalHash(db, 1)
+	block1hash := rawdb.ReadCanonicalHash(db, 1)
-	test(tx1, false, txStatus{Status: core.TxStatusIncluded, Lookup: &core.TxLookupEntry{BlockHash: block1hash, BlockIndex: 1, Index: 0}})
+	test(tx1, false, txStatus{Status: core.TxStatusIncluded, Lookup: &rawdb.TxLookupEntry{BlockHash: block1hash, BlockIndex: 1, Index: 0}})
-	test(tx2, false, txStatus{Status: core.TxStatusIncluded, Lookup: &core.TxLookupEntry{BlockHash: block1hash, BlockIndex: 1, Index: 1}})
+	test(tx2, false, txStatus{Status: core.TxStatusIncluded, Lookup: &rawdb.TxLookupEntry{BlockHash: block1hash, BlockIndex: 1, Index: 1}})
 
 	// create a reorg that rolls them back
 	gchain, _ = core.GenerateChain(params.TestChainConfig, chain.GetBlockByNumber(0), ethash.NewFaker(), db, 2, func(i int, block *core.BlockGen) {})

les/odr_requests.go

@@ -24,7 +24,7 @@ import (
 	"fmt"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -110,7 +110,7 @@ func (r *BlockRequest) Validate(db ethdb.Database, msg *Msg) error {
 	body := bodies[0]
 
 	// Retrieve our stored header and validate block content against it
-	header := core.GetHeader(db, r.Hash, r.Number)
+	header := rawdb.ReadHeader(db, r.Hash, r.Number)
 	if header == nil {
 		return errHeaderUnavailable
 	}
@@ -166,7 +166,7 @@ func (r *ReceiptsRequest) Validate(db ethdb.Database, msg *Msg) error {
 	receipt := receipts[0]
 
 	// Retrieve our stored header and validate receipt content against it
-	header := core.GetHeader(db, r.Hash, r.Number)
+	header := rawdb.ReadHeader(db, r.Hash, r.Number)
 	if header == nil {
 		return errHeaderUnavailable
 	}

les/odr_test.go

@@ -26,6 +26,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -63,9 +64,13 @@ func TestOdrGetReceiptsLes2(t *testing.T) { testOdr(t, 2, 1, odrGetReceipts) }
 func odrGetReceipts(ctx context.Context, db ethdb.Database, config *params.ChainConfig, bc *core.BlockChain, lc *light.LightChain, bhash common.Hash) []byte {
 	var receipts types.Receipts
 	if bc != nil {
-		receipts = core.GetBlockReceipts(db, bhash, core.GetBlockNumber(db, bhash))
+		if number := rawdb.ReadHeaderNumber(db, bhash); number != nil {
+			receipts = rawdb.ReadReceipts(db, bhash, *number)
+		}
 	} else {
-		receipts, _ = light.GetBlockReceipts(ctx, lc.Odr(), bhash, core.GetBlockNumber(db, bhash))
+		if number := rawdb.ReadHeaderNumber(db, bhash); number != nil {
+			receipts, _ = light.GetBlockReceipts(ctx, lc.Odr(), bhash, *number)
+		}
 	}
 	if receipts == nil {
 		return nil
@@ -178,7 +183,7 @@ func testOdr(t *testing.T, protocol int, expFail uint64, fn odrTestFn) {
 
 	test := func(expFail uint64) {
 		for i := uint64(0); i <= pm.blockchain.CurrentHeader().Number.Uint64(); i++ {
-			bhash := core.GetCanonicalHash(db, i)
+			bhash := rawdb.ReadCanonicalHash(db, i)
 			b1 := fn(light.NoOdr, db, pm.chainConfig, pm.blockchain.(*core.BlockChain), nil, bhash)
 
 			ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)

les/protocol.go

@@ -28,6 +28,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/crypto/secp256k1"
 	"github.com/ethereum/go-ethereum/rlp"
@@ -160,9 +161,8 @@ func (a *announceData) checkSignature(pubKey *ecdsa.PublicKey) error {
 	pbytes := elliptic.Marshal(pubKey.Curve, pubKey.X, pubKey.Y)
 	if bytes.Equal(pbytes, recPubkey) {
 		return nil
-	} else {
-		return errors.New("Wrong signature")
 	}
+	return errors.New("Wrong signature")
 }
 
 type blockInfo struct {
@@ -224,6 +224,6 @@ type proofsData [][]rlp.RawValue
 
 type txStatus struct {
 	Status core.TxStatus
-	Lookup *core.TxLookupEntry `rlp:"nil"`
+	Lookup *rawdb.TxLookupEntry `rlp:"nil"`
 	Error  string
 }

les/randselect.go

@@ -118,7 +118,7 @@ func (n *wrsNode) insert(item wrsItem, weight int64) int {
 	if n.level == 0 {
 		n.items[branch] = item
 		return branch
-	} else {
+	}
 	var subNode *wrsNode
 	if n.items[branch] == nil {
 		subNode = &wrsNode{maxItems: n.maxItems / wrsBranches, level: n.level - 1}
@@ -129,7 +129,6 @@ func (n *wrsNode) insert(item wrsItem, weight int64) int {
 	subIdx := subNode.insert(item, weight)
 	return subNode.maxItems*branch + subIdx
 }
-}
 
 // setWeight updates the weight of a certain item (which should exist) and returns
 // the change of the last weight value stored in the tree
@@ -162,12 +161,10 @@ func (n *wrsNode) choose(val int64) (wrsItem, int64) {
 		if val < w {
 			if n.level == 0 {
 				return n.items[i].(wrsItem), n.weights[i]
-			} else {
+			}
 			return n.items[i].(*wrsNode).choose(val)
 		}
-		} else {
 		val -= w
 	}
-	}
 	panic(nil)
 }

les/request_test.go

@@ -22,7 +22,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -58,15 +58,22 @@ func TestTrieEntryAccessLes1(t *testing.T) { testAccess(t, 1, tfTrieEntryAccess)
 func TestTrieEntryAccessLes2(t *testing.T) { testAccess(t, 2, tfTrieEntryAccess) }
 
 func tfTrieEntryAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
-	return &light.TrieRequest{Id: light.StateTrieID(core.GetHeader(db, bhash, core.GetBlockNumber(db, bhash))), Key: testBankSecureTrieKey}
+	if number := rawdb.ReadHeaderNumber(db, bhash); number != nil {
+		return &light.TrieRequest{Id: light.StateTrieID(rawdb.ReadHeader(db, bhash, *number)), Key: testBankSecureTrieKey}
+	}
+	return nil
 }
 
 func TestCodeAccessLes1(t *testing.T) { testAccess(t, 1, tfCodeAccess) }
 
 func TestCodeAccessLes2(t *testing.T) { testAccess(t, 2, tfCodeAccess) }
 
-func tfCodeAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
+func tfCodeAccess(db ethdb.Database, bhash common.Hash, num uint64) light.OdrRequest {
-	header := core.GetHeader(db, bhash, core.GetBlockNumber(db, bhash))
+	number := rawdb.ReadHeaderNumber(db, bhash)
+	if number != nil {
+		return nil
+	}
+	header := rawdb.ReadHeader(db, bhash, *number)
 	if header.Number.Uint64() < testContractDeployed {
 		return nil
 	}
@@ -99,7 +106,7 @@ func testAccess(t *testing.T, protocol int, fn accessTestFn) {
 
 	test := func(expFail uint64) {
 		for i := uint64(0); i <= pm.blockchain.CurrentHeader().Number.Uint64(); i++ {
-			bhash := core.GetCanonicalHash(db, i)
+			bhash := rawdb.ReadCanonicalHash(db, i)
 			if req := fn(ldb, bhash, i); req != nil {
 				ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
 				defer cancel()

les/server.go

@@ -25,6 +25,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -329,11 +330,11 @@ func (pm *ProtocolManager) blockLoop() {
 					header := ev.Block.Header()
 					hash := header.Hash()
 					number := header.Number.Uint64()
-					td := core.GetTd(pm.chainDb, hash, number)
+					td := rawdb.ReadTd(pm.chainDb, hash, number)
 					if td != nil && td.Cmp(lastBroadcastTd) > 0 {
 						var reorg uint64
 						if lastHead != nil {
-							reorg = lastHead.Number.Uint64() - core.FindCommonAncestor(pm.chainDb, header, lastHead).Number.Uint64()
+							reorg = lastHead.Number.Uint64() - rawdb.FindCommonAncestor(pm.chainDb, header, lastHead).Number.Uint64()
 						}
 						lastHead = header
 						lastBroadcastTd = td

les/serverpool.go

@@ -601,9 +601,8 @@ func (e *discoveredEntry) Weight() int64 {
 	t := time.Duration(mclock.Now() - e.lastDiscovered)
 	if t <= discoverExpireStart {
 		return 1000000000
-	} else {
-		return int64(1000000000 * math.Exp(-float64(t-discoverExpireStart)/float64(discoverExpireConst)))
 	}
+	return int64(1000000000 * math.Exp(-float64(t-discoverExpireStart)/float64(discoverExpireConst)))
 }
 
 // knownEntry implements wrsItem

les/sync.go

@@ -20,7 +20,7 @@ import (
 	"context"
 	"time"
 
-	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/eth/downloader"
 	"github.com/ethereum/go-ethereum/light"
 )
@@ -56,7 +56,7 @@ func (pm *ProtocolManager) syncer() {
 
 func (pm *ProtocolManager) needToSync(peerHead blockInfo) bool {
 	head := pm.blockchain.CurrentHeader()
-	currentTd := core.GetTd(pm.chainDb, head.Hash(), head.Number.Uint64())
+	currentTd := rawdb.ReadTd(pm.chainDb, head.Hash(), head.Number.Uint64())
 	return currentTd != nil && peerHead.Td.Cmp(currentTd) > 0
 }
 

light/lightchain.go

@@ -27,6 +27,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/consensus"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -189,12 +190,9 @@ func (bc *LightChain) ResetWithGenesisBlock(genesis *types.Block) {
 	defer bc.mu.Unlock()
 
 	// Prepare the genesis block and reinitialise the chain
-	if err := core.WriteTd(bc.chainDb, genesis.Hash(), genesis.NumberU64(), genesis.Difficulty()); err != nil {
+	rawdb.WriteTd(bc.chainDb, genesis.Hash(), genesis.NumberU64(), genesis.Difficulty())
-		log.Crit("Failed to write genesis block TD", "err", err)
+	rawdb.WriteBlock(bc.chainDb, genesis)
-	}
+
-	if err := core.WriteBlock(bc.chainDb, genesis); err != nil {
-		log.Crit("Failed to write genesis block", "err", err)
-	}
 	bc.genesisBlock = genesis
 	bc.hc.SetGenesis(bc.genesisBlock.Header())
 	bc.hc.SetCurrentHeader(bc.genesisBlock.Header())
@@ -274,7 +272,11 @@ func (bc *LightChain) GetBlock(ctx context.Context, hash common.Hash, number uin
 // GetBlockByHash retrieves a block from the database or ODR service by hash,
 // caching it if found.
 func (bc *LightChain) GetBlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error) {
-	return bc.GetBlock(ctx, hash, bc.hc.GetBlockNumber(hash))
+	number := bc.hc.GetBlockNumber(hash)
+	if number == nil {
+		return nil, errors.New("unknown block")
+	}
+	return bc.GetBlock(ctx, hash, *number)
 }
 
 // GetBlockByNumber retrieves a block from the database or ODR service by

light/lightchain_test.go

@@ -24,6 +24,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/params"
@@ -122,8 +123,8 @@ func testHeaderChainImport(chain []*types.Header, lightchain *LightChain) error
 		}
 		// Manually insert the header into the database, but don't reorganize (allows subsequent testing)
 		lightchain.mu.Lock()
-		core.WriteTd(lightchain.chainDb, header.Hash(), header.Number.Uint64(), new(big.Int).Add(header.Difficulty, lightchain.GetTdByHash(header.ParentHash)))
+		rawdb.WriteTd(lightchain.chainDb, header.Hash(), header.Number.Uint64(), new(big.Int).Add(header.Difficulty, lightchain.GetTdByHash(header.ParentHash)))
-		core.WriteHeader(lightchain.chainDb, header)
+		rawdb.WriteHeader(lightchain.chainDb, header)
 		lightchain.mu.Unlock()
 	}
 	return nil

light/odr.go

@@ -24,6 +24,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 )
@@ -112,7 +113,7 @@ type BlockRequest struct {
 
 // StoreResult stores the retrieved data in local database
 func (req *BlockRequest) StoreResult(db ethdb.Database) {
-	core.WriteBodyRLP(db, req.Hash, req.Number, req.Rlp)
+	rawdb.WriteBodyRLP(db, req.Hash, req.Number, req.Rlp)
 }
 
 // ReceiptsRequest is the ODR request type for retrieving block bodies
@@ -125,7 +126,7 @@ type ReceiptsRequest struct {
 
 // StoreResult stores the retrieved data in local database
 func (req *ReceiptsRequest) StoreResult(db ethdb.Database) {
-	core.WriteBlockReceipts(db, req.Hash, req.Number, req.Receipts)
+	rawdb.WriteReceipts(db, req.Hash, req.Number, req.Receipts)
 }
 
 // ChtRequest is the ODR request type for state/storage trie entries
@@ -140,11 +141,11 @@ type ChtRequest struct {
 
 // StoreResult stores the retrieved data in local database
 func (req *ChtRequest) StoreResult(db ethdb.Database) {
-	// if there is a canonical hash, there is a header too
-	core.WriteHeader(db, req.Header)
 	hash, num := req.Header.Hash(), req.Header.Number.Uint64()
-	core.WriteTd(db, hash, num, req.Td)
+
-	core.WriteCanonicalHash(db, hash, num)
+	rawdb.WriteHeader(db, req.Header)
+	rawdb.WriteTd(db, hash, num, req.Td)
+	rawdb.WriteCanonicalHash(db, hash, num)
 }
 
 // BloomRequest is the ODR request type for retrieving bloom filters from a CHT structure
@@ -161,11 +162,11 @@ type BloomRequest struct {
 // StoreResult stores the retrieved data in local database
 func (req *BloomRequest) StoreResult(db ethdb.Database) {
 	for i, sectionIdx := range req.SectionIdxList {
-		sectionHead := core.GetCanonicalHash(db, (sectionIdx+1)*BloomTrieFrequency-1)
+		sectionHead := rawdb.ReadCanonicalHash(db, (sectionIdx+1)*BloomTrieFrequency-1)
 		// if we don't have the canonical hash stored for this section head number, we'll still store it under
 		// a key with a zero sectionHead. GetBloomBits will look there too if we still don't have the canonical
 		// hash. In the unlikely case we've retrieved the section head hash since then, we'll just retrieve the
 		// bit vector again from the network.
-		core.WriteBloomBits(db, req.BitIdx, sectionIdx, sectionHead, req.BloomBits[i])
+		rawdb.WriteBloomBits(db, req.BitIdx, sectionIdx, sectionHead, req.BloomBits[i])
 	}
 }

light/odr_test.go

@@ -28,6 +28,7 @@ import (
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -70,9 +71,15 @@ func (odr *testOdr) Retrieve(ctx context.Context, req OdrRequest) error {
 	}
 	switch req := req.(type) {
 	case *BlockRequest:
-		req.Rlp = core.GetBodyRLP(odr.sdb, req.Hash, core.GetBlockNumber(odr.sdb, req.Hash))
+		number := rawdb.ReadHeaderNumber(odr.sdb, req.Hash)
+		if number != nil {
+			req.Rlp = rawdb.ReadBodyRLP(odr.sdb, req.Hash, *number)
+		}
 	case *ReceiptsRequest:
-		req.Receipts = core.GetBlockReceipts(odr.sdb, req.Hash, core.GetBlockNumber(odr.sdb, req.Hash))
+		number := rawdb.ReadHeaderNumber(odr.sdb, req.Hash)
+		if number != nil {
+			req.Receipts = rawdb.ReadReceipts(odr.sdb, req.Hash, *number)
+		}
 	case *TrieRequest:
 		t, _ := trie.New(req.Id.Root, trie.NewDatabase(odr.sdb))
 		nodes := NewNodeSet()
@@ -108,9 +115,15 @@ func TestOdrGetReceiptsLes1(t *testing.T) { testChainOdr(t, 1, odrGetReceipts) }
 func odrGetReceipts(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc *LightChain, bhash common.Hash) ([]byte, error) {
 	var receipts types.Receipts
 	if bc != nil {
-		receipts = core.GetBlockReceipts(db, bhash, core.GetBlockNumber(db, bhash))
+		number := rawdb.ReadHeaderNumber(db, bhash)
+		if number != nil {
+			receipts = rawdb.ReadReceipts(db, bhash, *number)
+		}
 	} else {
-		receipts, _ = GetBlockReceipts(ctx, lc.Odr(), bhash, core.GetBlockNumber(db, bhash))
+		number := rawdb.ReadHeaderNumber(db, bhash)
+		if number != nil {
+			receipts, _ = GetBlockReceipts(ctx, lc.Odr(), bhash, *number)
+		}
 	}
 	if receipts == nil {
 		return nil, nil
@@ -260,7 +273,7 @@ func testChainOdr(t *testing.T, protocol int, fn odrTestFn) {
 
 	test := func(expFail int) {
 		for i := uint64(0); i <= blockchain.CurrentHeader().Number.Uint64(); i++ {
-			bhash := core.GetCanonicalHash(sdb, i)
+			bhash := rawdb.ReadCanonicalHash(sdb, i)
 			b1, err := fn(NoOdr, sdb, blockchain, nil, bhash)
 			if err != nil {
 				t.Fatalf("error in full-node test for block %d: %v", i, err)

light/odr_util.go

@@ -22,6 +22,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/rlp"
@@ -31,10 +32,10 @@ var sha3_nil = crypto.Keccak256Hash(nil)
 
 func GetHeaderByNumber(ctx context.Context, odr OdrBackend, number uint64) (*types.Header, error) {
 	db := odr.Database()
-	hash := core.GetCanonicalHash(db, number)
+	hash := rawdb.ReadCanonicalHash(db, number)
 	if (hash != common.Hash{}) {
 		// if there is a canonical hash, there is a header too
-		header := core.GetHeader(db, hash, number)
+		header := rawdb.ReadHeader(db, hash, number)
 		if header == nil {
 			panic("Canonical hash present but header not found")
 		}
@@ -47,14 +48,14 @@ func GetHeaderByNumber(ctx context.Context, odr OdrBackend, number uint64) (*typ
 	)
 	if odr.ChtIndexer() != nil {
 		chtCount, sectionHeadNum, sectionHead = odr.ChtIndexer().Sections()
-		canonicalHash := core.GetCanonicalHash(db, sectionHeadNum)
+		canonicalHash := rawdb.ReadCanonicalHash(db, sectionHeadNum)
 		// if the CHT was injected as a trusted checkpoint, we have no canonical hash yet so we accept zero hash too
 		for chtCount > 0 && canonicalHash != sectionHead && canonicalHash != (common.Hash{}) {
 			chtCount--
 			if chtCount > 0 {
 				sectionHeadNum = chtCount*CHTFrequencyClient - 1
 				sectionHead = odr.ChtIndexer().SectionHead(chtCount - 1)
-				canonicalHash = core.GetCanonicalHash(db, sectionHeadNum)
+				canonicalHash = rawdb.ReadCanonicalHash(db, sectionHeadNum)
 			}
 		}
 	}
@@ -69,7 +70,7 @@ func GetHeaderByNumber(ctx context.Context, odr OdrBackend, number uint64) (*typ
 }
 
 func GetCanonicalHash(ctx context.Context, odr OdrBackend, number uint64) (common.Hash, error) {
-	hash := core.GetCanonicalHash(odr.Database(), number)
+	hash := rawdb.ReadCanonicalHash(odr.Database(), number)
 	if (hash != common.Hash{}) {
 		return hash, nil
 	}
@@ -82,7 +83,7 @@ func GetCanonicalHash(ctx context.Context, odr OdrBackend, number uint64) (commo
 
 // GetBodyRLP retrieves the block body (transactions and uncles) in RLP encoding.
 func GetBodyRLP(ctx context.Context, odr OdrBackend, hash common.Hash, number uint64) (rlp.RawValue, error) {
-	if data := core.GetBodyRLP(odr.Database(), hash, number); data != nil {
+	if data := rawdb.ReadBodyRLP(odr.Database(), hash, number); data != nil {
 		return data, nil
 	}
 	r := &BlockRequest{Hash: hash, Number: number}
@@ -111,7 +112,7 @@ func GetBody(ctx context.Context, odr OdrBackend, hash common.Hash, number uint6
 // back from the stored header and body.
 func GetBlock(ctx context.Context, odr OdrBackend, hash common.Hash, number uint64) (*types.Block, error) {
 	// Retrieve the block header and body contents
-	header := core.GetHeader(odr.Database(), hash, number)
+	header := rawdb.ReadHeader(odr.Database(), hash, number)
 	if header == nil {
 		return nil, ErrNoHeader
 	}
@@ -127,7 +128,7 @@ func GetBlock(ctx context.Context, odr OdrBackend, hash common.Hash, number uint
 // in a block given by its hash.
 func GetBlockReceipts(ctx context.Context, odr OdrBackend, hash common.Hash, number uint64) (types.Receipts, error) {
 	// Retrieve the potentially incomplete receipts from disk or network
-	receipts := core.GetBlockReceipts(odr.Database(), hash, number)
+	receipts := rawdb.ReadReceipts(odr.Database(), hash, number)
 	if receipts == nil {
 		r := &ReceiptsRequest{Hash: hash, Number: number}
 		if err := odr.Retrieve(ctx, r); err != nil {
@@ -141,13 +142,13 @@ func GetBlockReceipts(ctx context.Context, odr OdrBackend, hash common.Hash, num
 		if err != nil {
 			return nil, err
 		}
-		genesis := core.GetCanonicalHash(odr.Database(), 0)
+		genesis := rawdb.ReadCanonicalHash(odr.Database(), 0)
-		config, _ := core.GetChainConfig(odr.Database(), genesis)
+		config := rawdb.ReadChainConfig(odr.Database(), genesis)
 
 		if err := core.SetReceiptsData(config, block, receipts); err != nil {
 			return nil, err
 		}
-		core.WriteBlockReceipts(odr.Database(), hash, number, receipts)
+		rawdb.WriteReceipts(odr.Database(), hash, number, receipts)
 	}
 	return receipts, nil
 }
@@ -156,7 +157,7 @@ func GetBlockReceipts(ctx context.Context, odr OdrBackend, hash common.Hash, num
 // block given by its hash.
 func GetBlockLogs(ctx context.Context, odr OdrBackend, hash common.Hash, number uint64) ([][]*types.Log, error) {
 	// Retrieve the potentially incomplete receipts from disk or network
-	receipts := core.GetBlockReceipts(odr.Database(), hash, number)
+	receipts := rawdb.ReadReceipts(odr.Database(), hash, number)
 	if receipts == nil {
 		r := &ReceiptsRequest{Hash: hash, Number: number}
 		if err := odr.Retrieve(ctx, r); err != nil {
@@ -187,24 +188,24 @@ func GetBloomBits(ctx context.Context, odr OdrBackend, bitIdx uint, sectionIdxLi
 	)
 	if odr.BloomTrieIndexer() != nil {
 		bloomTrieCount, sectionHeadNum, sectionHead = odr.BloomTrieIndexer().Sections()
-		canonicalHash := core.GetCanonicalHash(db, sectionHeadNum)
+		canonicalHash := rawdb.ReadCanonicalHash(db, sectionHeadNum)
 		// if the BloomTrie was injected as a trusted checkpoint, we have no canonical hash yet so we accept zero hash too
 		for bloomTrieCount > 0 && canonicalHash != sectionHead && canonicalHash != (common.Hash{}) {
 			bloomTrieCount--
 			if bloomTrieCount > 0 {
 				sectionHeadNum = bloomTrieCount*BloomTrieFrequency - 1
 				sectionHead = odr.BloomTrieIndexer().SectionHead(bloomTrieCount - 1)
-				canonicalHash = core.GetCanonicalHash(db, sectionHeadNum)
+				canonicalHash = rawdb.ReadCanonicalHash(db, sectionHeadNum)
 			}
 		}
 	}
 
 	for i, sectionIdx := range sectionIdxList {
-		sectionHead := core.GetCanonicalHash(db, (sectionIdx+1)*BloomTrieFrequency-1)
+		sectionHead := rawdb.ReadCanonicalHash(db, (sectionIdx+1)*BloomTrieFrequency-1)
 		// if we don't have the canonical hash stored for this section head number, we'll still look for
 		// an entry with a zero sectionHead (we store it with zero section head too if we don't know it
 		// at the time of the retrieval)
-		bloomBits, err := core.GetBloomBits(db, bitIdx, sectionIdx, sectionHead)
+		bloomBits, err := rawdb.ReadBloomBits(db, bitIdx, sectionIdx, sectionHead)
 		if err == nil {
 			result[i] = bloomBits
 		} else {

light/postprocess.go

@@ -25,6 +25,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/bitutil"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/log"
@@ -161,7 +162,7 @@ func (c *ChtIndexerBackend) Process(header *types.Header) {
 	hash, num := header.Hash(), header.Number.Uint64()
 	c.lastHash = hash
 
-	td := core.GetTd(c.diskdb, hash, num)
+	td := rawdb.ReadTd(c.diskdb, hash, num)
 	if td == nil {
 		panic(nil)
 	}
@@ -272,7 +273,7 @@ func (b *BloomTrieIndexerBackend) Commit() error {
 		binary.BigEndian.PutUint64(encKey[2:10], b.section)
 		var decomp []byte
 		for j := uint64(0); j < b.bloomTrieRatio; j++ {
-			data, err := core.GetBloomBits(b.diskdb, i, b.section*b.bloomTrieRatio+j, b.sectionHeads[j])
+			data, err := rawdb.ReadBloomBits(b.diskdb, i, b.section*b.bloomTrieRatio+j, b.sectionHeads[j])
 			if err != nil {
 				return err
 			}

light/txpool.go

@@ -24,6 +24,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
@@ -183,9 +184,8 @@ func (pool *TxPool) checkMinedTxs(ctx context.Context, hash common.Hash, number
 		if _, err := GetBlockReceipts(ctx, pool.odr, hash, number); err != nil { // ODR caches, ignore results
 			return err
 		}
-		if err := core.WriteTxLookupEntries(pool.chainDb, block); err != nil {
+		rawdb.WriteTxLookupEntries(pool.chainDb, block)
-			return err
+
-		}
 		// Update the transaction pool's state
 		for _, tx := range list {
 			delete(pool.pending, tx.Hash())
@@ -202,7 +202,7 @@ func (pool *TxPool) rollbackTxs(hash common.Hash, txc txStateChanges) {
 	if list, ok := pool.mined[hash]; ok {
 		for _, tx := range list {
 			txHash := tx.Hash()
-			core.DeleteTxLookupEntry(pool.chainDb, txHash)
+			rawdb.DeleteTxLookupEntry(pool.chainDb, txHash)
 			pool.pending[txHash] = tx
 			txc.setState(txHash, false)
 		}
@@ -258,7 +258,7 @@ func (pool *TxPool) reorgOnNewHead(ctx context.Context, newHeader *types.Header)
 		idx2 := idx - txPermanent
 		if len(pool.mined) > 0 {
 			for i := pool.clearIdx; i < idx2; i++ {
-				hash := core.GetCanonicalHash(pool.chainDb, i)
+				hash := rawdb.ReadCanonicalHash(pool.chainDb, i)
 				if list, ok := pool.mined[hash]; ok {
 					hashes := make([]common.Hash, len(list))
 					for i, tx := range list {

log/handler.go

@@ -234,9 +234,8 @@ func FailoverHandler(hs ...Handler) Handler {
 			err = h.Log(r)
 			if err == nil {
 				return nil
-			} else {
-				r.Ctx = append(r.Ctx, fmt.Sprintf("failover_err_%d", i), err)
 			}
+			r.Ctx = append(r.Ctx, fmt.Sprintf("failover_err_%d", i), err)
 		}
 
 		return err
@@ -320,14 +319,13 @@ func evaluateLazy(lz Lazy) (interface{}, error) {
 	results := value.Call([]reflect.Value{})
 	if len(results) == 1 {
 		return results[0].Interface(), nil
-	} else {
+	}
 	values := make([]interface{}, len(results))
 	for i, v := range results {
 		values[i] = v.Interface()
 	}
 	return values, nil
 }
-}
 
 // DiscardHandler reports success for all writes but does nothing.
 // It is useful for dynamically disabling logging at runtime via

metrics/librato/client.go

@@ -65,7 +65,7 @@ type Batch struct {
 	Source      string        `json:"source"`
 }
 
-func (self *LibratoClient) PostMetrics(batch Batch) (err error) {
+func (c *LibratoClient) PostMetrics(batch Batch) (err error) {
 	var (
 		js   []byte
 		req  *http.Request
@@ -85,7 +85,7 @@ func (self *LibratoClient) PostMetrics(batch Batch) (err error) {
 	}
 
 	req.Header.Set("Content-Type", "application/json")
-	req.SetBasicAuth(self.Email, self.Token)
+	req.SetBasicAuth(c.Email, c.Token)
 
 	if resp, err = http.DefaultClient.Do(req); err != nil {
 		return

metrics/librato/librato.go

@@ -40,14 +40,14 @@ func Librato(r metrics.Registry, d time.Duration, e string, t string, s string,
 	NewReporter(r, d, e, t, s, p, u).Run()
 }
 
-func (self *Reporter) Run() {
+func (rep *Reporter) Run() {
 	log.Printf("WARNING: This client has been DEPRECATED! It has been moved to https://github.com/mihasya/go-metrics-librato and will be removed from rcrowley/go-metrics on August 5th 2015")
-	ticker := time.Tick(self.Interval)
+	ticker := time.Tick(rep.Interval)
-	metricsApi := &LibratoClient{self.Email, self.Token}
+	metricsApi := &LibratoClient{rep.Email, rep.Token}
 	for now := range ticker {
 		var metrics Batch
 		var err error
-		if metrics, err = self.BuildRequest(now, self.Registry); err != nil {
+		if metrics, err = rep.BuildRequest(now, rep.Registry); err != nil {
 			log.Printf("ERROR constructing librato request body %s", err)
 			continue
 		}
@@ -79,21 +79,21 @@ func sumSquaresTimer(t metrics.Timer) float64 {
 	return sumSquares
 }
 
-func (self *Reporter) BuildRequest(now time.Time, r metrics.Registry) (snapshot Batch, err error) {
+func (rep *Reporter) BuildRequest(now time.Time, r metrics.Registry) (snapshot Batch, err error) {
 	snapshot = Batch{
 		// coerce timestamps to a stepping fn so that they line up in Librato graphs
-		MeasureTime: (now.Unix() / self.intervalSec) * self.intervalSec,
+		MeasureTime: (now.Unix() / rep.intervalSec) * rep.intervalSec,
-		Source:      self.Source,
+		Source:      rep.Source,
 	}
 	snapshot.Gauges = make([]Measurement, 0)
 	snapshot.Counters = make([]Measurement, 0)
-	histogramGaugeCount := 1 + len(self.Percentiles)
+	histogramGaugeCount := 1 + len(rep.Percentiles)
 	r.Each(func(name string, metric interface{}) {
-		if self.Namespace != "" {
+		if rep.Namespace != "" {
-			name = fmt.Sprintf("%s.%s", self.Namespace, name)
+			name = fmt.Sprintf("%s.%s", rep.Namespace, name)
 		}
 		measurement := Measurement{}
-		measurement[Period] = self.Interval.Seconds()
+		measurement[Period] = rep.Interval.Seconds()
 		switch m := metric.(type) {
 		case metrics.Counter:
 			if m.Count() > 0 {
@@ -125,7 +125,7 @@ func (self *Reporter) BuildRequest(now time.Time, r metrics.Registry) (snapshot
 				measurement[Sum] = float64(s.Sum())
 				measurement[SumSquares] = sumSquares(s)
 				gauges[0] = measurement
-				for i, p := range self.Percentiles {
+				for i, p := range rep.Percentiles {
 					gauges[i+1] = Measurement{
 						Name:   fmt.Sprintf("%s.%.2f", measurement[Name], p),
 						Value:  s.Percentile(p),
@@ -142,7 +142,7 @@ func (self *Reporter) BuildRequest(now time.Time, r metrics.Registry) (snapshot
 				Measurement{
 					Name:   fmt.Sprintf("%s.%s", name, "1min"),
 					Value:  m.Rate1(),
-					Period: int64(self.Interval.Seconds()),
+					Period: int64(rep.Interval.Seconds()),
 					Attributes: map[string]interface{}{
 						DisplayUnitsLong:  Operations,
 						DisplayUnitsShort: OperationsShort,
@@ -152,7 +152,7 @@ func (self *Reporter) BuildRequest(now time.Time, r metrics.Registry) (snapshot
 				Measurement{
 					Name:   fmt.Sprintf("%s.%s", name, "5min"),
 					Value:  m.Rate5(),
-					Period: int64(self.Interval.Seconds()),
+					Period: int64(rep.Interval.Seconds()),
 					Attributes: map[string]interface{}{
 						DisplayUnitsLong:  Operations,
 						DisplayUnitsShort: OperationsShort,
@@ -162,7 +162,7 @@ func (self *Reporter) BuildRequest(now time.Time, r metrics.Registry) (snapshot
 				Measurement{
 					Name:   fmt.Sprintf("%s.%s", name, "15min"),
 					Value:  m.Rate15(),
-					Period: int64(self.Interval.Seconds()),
+					Period: int64(rep.Interval.Seconds()),
 					Attributes: map[string]interface{}{
 						DisplayUnitsLong:  Operations,
 						DisplayUnitsShort: OperationsShort,
@@ -184,15 +184,15 @@ func (self *Reporter) BuildRequest(now time.Time, r metrics.Registry) (snapshot
 					Max:        float64(m.Max()),
 					Min:        float64(m.Min()),
 					SumSquares: sumSquaresTimer(m),
-					Period:     int64(self.Interval.Seconds()),
+					Period:     int64(rep.Interval.Seconds()),
-					Attributes: self.TimerAttributes,
+					Attributes: rep.TimerAttributes,
 				}
-				for i, p := range self.Percentiles {
+				for i, p := range rep.Percentiles {
 					gauges[i+1] = Measurement{
 						Name:       fmt.Sprintf("%s.timer.%2.0f", name, p*100),
 						Value:      m.Percentile(p),
-						Period:     int64(self.Interval.Seconds()),
+						Period:     int64(rep.Interval.Seconds()),
-						Attributes: self.TimerAttributes,
+						Attributes: rep.TimerAttributes,
 					}
 				}
 				snapshot.Gauges = append(snapshot.Gauges, gauges...)
@@ -200,7 +200,7 @@ func (self *Reporter) BuildRequest(now time.Time, r metrics.Registry) (snapshot
 					Measurement{
 						Name:   fmt.Sprintf("%s.%s", name, "rate.1min"),
 						Value:  m.Rate1(),
-						Period: int64(self.Interval.Seconds()),
+						Period: int64(rep.Interval.Seconds()),
 						Attributes: map[string]interface{}{
 							DisplayUnitsLong:  Operations,
 							DisplayUnitsShort: OperationsShort,
@@ -210,7 +210,7 @@ func (self *Reporter) BuildRequest(now time.Time, r metrics.Registry) (snapshot
 					Measurement{
 						Name:   fmt.Sprintf("%s.%s", name, "rate.5min"),
 						Value:  m.Rate5(),
-						Period: int64(self.Interval.Seconds()),
+						Period: int64(rep.Interval.Seconds()),
 						Attributes: map[string]interface{}{
 							DisplayUnitsLong:  Operations,
 							DisplayUnitsShort: OperationsShort,
@@ -220,7 +220,7 @@ func (self *Reporter) BuildRequest(now time.Time, r metrics.Registry) (snapshot
 					Measurement{
 						Name:   fmt.Sprintf("%s.%s", name, "rate.15min"),
 						Value:  m.Rate15(),
-						Period: int64(self.Interval.Seconds()),
+						Period: int64(rep.Interval.Seconds()),
 						Attributes: map[string]interface{}{
 							DisplayUnitsLong:  Operations,
 							DisplayUnitsShort: OperationsShort,

mobile/types.go

@@ -329,6 +329,7 @@ func (r *Receipt) EncodeJSON() (string, error) {
 	return string(data), err
 }
 
+func (r *Receipt) GetStatus() int               { return int(r.receipt.Status) }
 func (r *Receipt) GetPostState() []byte         { return r.receipt.PostState }
 func (r *Receipt) GetCumulativeGasUsed() int64  { return int64(r.receipt.CumulativeGasUsed) }
 func (r *Receipt) GetBloom() *Bloom             { return &Bloom{r.receipt.Bloom} }

p2p/message.go

@@ -229,7 +229,7 @@ func ExpectMsg(r MsgReader, code uint64, content interface{}) error {
 	}
 	if content == nil {
 		return msg.Discard()
-	} else {
+	}
 	contentEnc, err := rlp.EncodeToBytes(content)
 	if err != nil {
 		panic("content encode error: " + err.Error())
@@ -244,7 +244,6 @@ func ExpectMsg(r MsgReader, code uint64, content interface{}) error {
 	if !bytes.Equal(actualContent, contentEnc) {
 		return fmt.Errorf("message payload mismatch:\ngot:  %x\nwant: %x", actualContent, contentEnc)
 	}
-	}
 	return nil
 }
 

p2p/simulations/network.go

@@ -738,7 +738,6 @@ func (self *Network) executeNodeEvent(e *Event) error {
 func (self *Network) executeConnEvent(e *Event) error {
 	if e.Conn.Up {
 		return self.Connect(e.Conn.One, e.Conn.Other)
-	} else {
+	}
 	return self.Disconnect(e.Conn.One, e.Conn.Other)
 }
-}

params/version.go

@@ -23,7 +23,7 @@ import (
 const (
 	VersionMajor = 1          // Major version component of the current release
 	VersionMinor = 8          // Minor version component of the current release
-	VersionPatch = 7          // Patch version component of the current release
+	VersionPatch = 8          // Patch version component of the current release
 	VersionMeta  = "unstable" // Version metadata to append to the version string
 )
 

rpc/http.go

@@ -191,7 +191,7 @@ func (srv *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	defer codec.Close()
 
 	w.Header().Set("content-type", contentType)
-	srv.ServeSingleRequest(codec, OptionMethodInvocation, ctx)
+	srv.ServeSingleRequest(ctx, codec, OptionMethodInvocation)
 }
 
 // validateRequest returns a non-zero response code and error message if the

rpc/inproc.go

@@ -21,7 +21,7 @@ import (
 	"net"
 )
 
-// NewInProcClient attaches an in-process connection to the given RPC server.
+// DialInProc attaches an in-process connection to the given RPC server.
 func DialInProc(handler *Server) *Client {
 	initctx := context.Background()
 	c, _ := newClient(initctx, func(context.Context) (net.Conn, error) {

rpc/server.go

@@ -125,7 +125,7 @@ func (s *Server) RegisterName(name string, rcvr interface{}) error {
 // If singleShot is true it will process a single request, otherwise it will handle
 // requests until the codec returns an error when reading a request (in most cases
 // an EOF). It executes requests in parallel when singleShot is false.
-func (s *Server) serveRequest(codec ServerCodec, singleShot bool, options CodecOption, ctx context.Context) error {
+func (s *Server) serveRequest(ctx context.Context, codec ServerCodec, singleShot bool, options CodecOption) error {
 	var pend sync.WaitGroup
 
 	defer func() {
@@ -216,14 +216,14 @@ func (s *Server) serveRequest(codec ServerCodec, singleShot bool, options CodecO
 // stopped. In either case the codec is closed.
 func (s *Server) ServeCodec(codec ServerCodec, options CodecOption) {
 	defer codec.Close()
-	s.serveRequest(codec, false, options, context.Background())
+	s.serveRequest(context.Background(), codec, false, options)
 }
 
 // ServeSingleRequest reads and processes a single RPC request from the given codec. It will not
 // close the codec unless a non-recoverable error has occurred. Note, this method will return after
 // a single request has been processed!
-func (s *Server) ServeSingleRequest(codec ServerCodec, options CodecOption, ctx context.Context) {
+func (s *Server) ServeSingleRequest(ctx context.Context, codec ServerCodec, options CodecOption) {
-	s.serveRequest(codec, true, options, ctx)
+	s.serveRequest(ctx, codec, true, options)
 }
 
 // Stop will stop reading new requests, wait for stopPendingRequestTimeout to allow pending requests to finish,

signer/core/abihelper.go

@@ -94,14 +94,13 @@ func parseCallData(calldata []byte, abidata string) (*decodedCallData, error) {
 	for n, argument := range method.Inputs {
 		if err != nil {
 			return nil, fmt.Errorf("Failed to decode argument %d (signature %v): %v", n, method.Sig(), err)
-		} else {
+		}
 		decodedArg := decodedArgument{
 			soltype: argument,
 			value:   v[n],
 		}
 		decoded.inputs = append(decoded.inputs, decodedArg)
 	}
-	}
 
 	// We're finished decoding the data. At this point, we encode the decoded data to see if it matches with the
 	// original data. If we didn't do that, it would e.g. be possible to stuff extra data into the arguments, which
@@ -240,7 +239,7 @@ func (db *AbiDb) saveCustomAbi(selector, signature string) error {
 	return err
 }
 
-// Adds a signature to the database, if custom database saving is enabled.
+// AddSignature to the database, if custom database saving is enabled.
 // OBS: This method does _not_ validate the correctness of the data,
 // it is assumed that the caller has already done so
 func (db *AbiDb) AddSignature(selector string, data []byte) error {

signer/core/api.go

@@ -474,7 +474,7 @@ func (api *SignerAPI) Export(ctx context.Context, addr common.Address) (json.Raw
 	return ioutil.ReadFile(wallet.URL().Path)
 }
 
-// Imports tries to import the given keyJSON in the local keystore. The keyJSON data is expected to be
+// Import tries to import the given keyJSON in the local keystore. The keyJSON data is expected to be
 // in web3 keystore format. It will decrypt the keyJSON with the given passphrase and on successful
 // decryption it will encrypt the key with the given newPassphrase and store it in the keystore.
 func (api *SignerAPI) Import(ctx context.Context, keyJSON json.RawMessage) (Account, error) {

signer/core/cliui.go

@@ -13,6 +13,7 @@
 //
 // You should have received a copy of the GNU General Public License
 // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
 package core
 
 import (