mirror of
https://github.com/ethereum/go-ethereum.git
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965bd6b6a0
In this PR, we add support for protocol version eth/70, defined by EIP-7975. Overall changes: - Each response is buffered in the peer’s receipt buffer when the `lastBlockIncomplete` field is true. - Continued request uses the same request id of its original request(`RequestPartialReceipts`). - Partial responses are verified in `validateLastBlockReceipt`. - Even if all receipts for partial blocks of the request are collected, those partial results are not sinked to the downloader, to avoid complexity. This assumes that partial response and buffering occur only in exceptional cases. --------- Co-authored-by: Gary Rong <garyrong0905@gmail.com> Co-authored-by: Felix Lange <fjl@twurst.com>
101 lines
3.7 KiB
Go
101 lines
3.7 KiB
Go
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package eth
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import (
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/eth/ethconfig"
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"github.com/ethereum/go-ethereum/eth/protocols/eth"
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"github.com/ethereum/go-ethereum/eth/protocols/snap"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/p2p/enode"
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)
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// Tests that snap sync is disabled after a successful sync cycle.
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func TestSnapSyncDisabling69(t *testing.T) { testSnapSyncDisabling(t, eth.ETH69, snap.SNAP1) }
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// Tests that snap sync gets disabled as soon as a real block is successfully
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// imported into the blockchain.
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func testSnapSyncDisabling(t *testing.T, ethVer uint, snapVer uint) {
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t.Parallel()
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// Create an empty handler and ensure it's in snap sync mode
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empty := newTestHandler(ethconfig.SnapSync)
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defer empty.close()
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// Create a full handler and ensure snap sync ends up disabled
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full := newTestHandlerWithBlocks(1024, ethconfig.SnapSync)
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defer full.close()
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// Sync up the two handlers via both `eth` and `snap`
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caps := []p2p.Cap{{Name: "eth", Version: ethVer}, {Name: "snap", Version: snapVer}}
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emptyPipeEth, fullPipeEth := p2p.MsgPipe()
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defer emptyPipeEth.Close()
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defer fullPipeEth.Close()
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emptyPeerEth := eth.NewPeer(ethVer, p2p.NewPeer(enode.ID{1}, "", caps), emptyPipeEth, empty.txpool, nil)
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fullPeerEth := eth.NewPeer(ethVer, p2p.NewPeer(enode.ID{2}, "", caps), fullPipeEth, full.txpool, nil)
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defer emptyPeerEth.Close()
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defer fullPeerEth.Close()
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go empty.handler.runEthPeer(emptyPeerEth, func(peer *eth.Peer) error {
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return eth.Handle((*ethHandler)(empty.handler), peer)
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})
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go full.handler.runEthPeer(fullPeerEth, func(peer *eth.Peer) error {
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return eth.Handle((*ethHandler)(full.handler), peer)
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})
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emptyPipeSnap, fullPipeSnap := p2p.MsgPipe()
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defer emptyPipeSnap.Close()
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defer fullPipeSnap.Close()
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emptyPeerSnap := snap.NewPeer(snapVer, p2p.NewPeer(enode.ID{1}, "", caps), emptyPipeSnap)
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fullPeerSnap := snap.NewPeer(snapVer, p2p.NewPeer(enode.ID{2}, "", caps), fullPipeSnap)
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go empty.handler.runSnapExtension(emptyPeerSnap, func(peer *snap.Peer) error {
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return snap.Handle((*snapHandler)(empty.handler), peer)
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})
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go full.handler.runSnapExtension(fullPeerSnap, func(peer *snap.Peer) error {
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return snap.Handle((*snapHandler)(full.handler), peer)
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})
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// Wait a bit for the above handlers to start
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time.Sleep(250 * time.Millisecond)
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// Check that snap sync was disabled
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if err := empty.handler.downloader.BeaconSync(full.chain.CurrentBlock(), nil); err != nil {
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t.Fatal("sync failed:", err)
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}
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// Snap sync and mode switching happen asynchronously, poll for completion.
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timeout := time.NewTimer(15 * time.Second)
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tick := time.NewTicker(100 * time.Millisecond)
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defer timeout.Stop()
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defer tick.Stop()
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for {
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select {
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case <-timeout.C:
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t.Fatalf("snap sync not disabled after successful synchronisation")
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case <-tick.C:
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if empty.handler.synced.Load() && empty.handler.downloader.ConfigSyncMode() == ethconfig.FullSync {
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return
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}
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}
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}
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}
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