swarm/network: remove FetchStore and SyncChunkStore in favor of NetStore (#1342)

swarm/chunk/chunk.go

@@ -172,12 +172,6 @@ type Store interface {
 	Close() (err error)
 }
 
-// FetchStore is a Store which supports syncing
-type FetchStore interface {
-	Store
-	FetchFunc(ctx context.Context, addr Address) func(context.Context) error
-}
-
 // Validator validates a chunk.
 type Validator interface {
 	Validate(ch Chunk) bool

swarm/network/stream/delivery.go

@@ -46,17 +46,17 @@ var (
 )
 
 type Delivery struct {
-	chunkStore chunk.FetchStore
+	netStore *storage.NetStore
-	kad        *network.Kademlia
+	kad      *network.Kademlia
-	getPeer    func(enode.ID) *Peer
+	getPeer  func(enode.ID) *Peer
-	quit       chan struct{}
+	quit     chan struct{}
 }
 
-func NewDelivery(kad *network.Kademlia, chunkStore chunk.FetchStore) *Delivery {
+func NewDelivery(kad *network.Kademlia, netStore *storage.NetStore) *Delivery {
 	return &Delivery{
-		chunkStore: chunkStore,
+		netStore: netStore,
-		kad:        kad,
+		kad:      kad,
-		quit:       make(chan struct{}),
+		quit:     make(chan struct{}),
 	}
 }
 
@@ -94,7 +94,7 @@ func (d *Delivery) handleRetrieveRequestMsg(ctx context.Context, sp *Peer, req *
 
 	go func() {
 		defer osp.Finish()
-		ch, err := d.chunkStore.Get(ctx, chunk.ModeGetRequest, req.Addr)
+		ch, err := d.netStore.Get(ctx, chunk.ModeGetRequest, req.Addr)
 		if err != nil {
 			retrieveChunkFail.Inc(1)
 			log.Debug("ChunkStore.Get can not retrieve chunk", "peer", sp.ID().String(), "addr", req.Addr, "hopcount", req.HopCount, "err", err)
@@ -171,7 +171,7 @@ func (d *Delivery) handleChunkDeliveryMsg(ctx context.Context, sp *Peer, req int
 
 		msg.peer = sp
 		log.Trace("handle.chunk.delivery", "put", msg.Addr)
-		_, err := d.chunkStore.Put(ctx, mode, storage.NewChunk(msg.Addr, msg.SData))
+		_, err := d.netStore.Put(ctx, mode, storage.NewChunk(msg.Addr, msg.SData))
 		if err != nil {
 			if err == storage.ErrChunkInvalid {
 				// we removed this log because it spams the logs

swarm/network/stream/intervals_test.go

@@ -29,7 +29,6 @@ import (
 	"github.com/ethereum/go-ethereum/node"
 	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
-	"github.com/ethereum/go-ethereum/swarm/chunk"
 	"github.com/ethereum/go-ethereum/swarm/network/simulation"
 	"github.com/ethereum/go-ethereum/swarm/state"
 	"github.com/ethereum/go-ethereum/swarm/storage"
@@ -287,20 +286,20 @@ func enableNotifications(r *Registry, peerID enode.ID, s Stream) error {
 
 type testExternalClient struct {
 	hashes               chan []byte
-	store                chunk.FetchStore
+	netStore             *storage.NetStore
 	enableNotificationsC chan struct{}
 }
 
-func newTestExternalClient(store chunk.FetchStore) *testExternalClient {
+func newTestExternalClient(netStore *storage.NetStore) *testExternalClient {
 	return &testExternalClient{
 		hashes:               make(chan []byte),
-		store:                store,
+		netStore:             netStore,
 		enableNotificationsC: make(chan struct{}),
 	}
 }
 
 func (c *testExternalClient) NeedData(ctx context.Context, hash []byte) func(context.Context) error {
-	wait := c.store.FetchFunc(ctx, storage.Address(hash))
+	wait := c.netStore.FetchFunc(ctx, storage.Address(hash))
 	if wait == nil {
 		return nil
 	}

swarm/network/stream/syncer.go

@@ -34,27 +34,27 @@ const (
 // * live request delivery with or without checkback
 // * (live/non-live historical) chunk syncing per proximity bin
 type SwarmSyncerServer struct {
-	po    uint8
+	po       uint8
-	store chunk.FetchStore
+	netStore *storage.NetStore
-	quit  chan struct{}
+	quit     chan struct{}
 }
 
 // NewSwarmSyncerServer is constructor for SwarmSyncerServer
-func NewSwarmSyncerServer(po uint8, syncChunkStore chunk.FetchStore) (*SwarmSyncerServer, error) {
+func NewSwarmSyncerServer(po uint8, netStore *storage.NetStore) (*SwarmSyncerServer, error) {
 	return &SwarmSyncerServer{
-		po:    po,
+		po:       po,
-		store: syncChunkStore,
+		netStore: netStore,
-		quit:  make(chan struct{}),
+		quit:     make(chan struct{}),
 	}, nil
 }
 
-func RegisterSwarmSyncerServer(streamer *Registry, syncChunkStore chunk.FetchStore) {
+func RegisterSwarmSyncerServer(streamer *Registry, netStore *storage.NetStore) {
 	streamer.RegisterServerFunc("SYNC", func(_ *Peer, t string, _ bool) (Server, error) {
 		po, err := ParseSyncBinKey(t)
 		if err != nil {
 			return nil, err
 		}
-		return NewSwarmSyncerServer(po, syncChunkStore)
+		return NewSwarmSyncerServer(po, netStore)
 	})
 	// streamer.RegisterServerFunc(stream, func(p *Peer) (Server, error) {
 	// 	return NewOutgoingProvableSwarmSyncer(po, db)
@@ -68,7 +68,7 @@ func (s *SwarmSyncerServer) Close() {
 
 // GetData retrieves the actual chunk from netstore
 func (s *SwarmSyncerServer) GetData(ctx context.Context, key []byte) ([]byte, error) {
-	ch, err := s.store.Get(ctx, chunk.ModeGetSync, storage.Address(key))
+	ch, err := s.netStore.Get(ctx, chunk.ModeGetSync, storage.Address(key))
 	if err != nil {
 		return nil, err
 	}
@@ -77,7 +77,7 @@ func (s *SwarmSyncerServer) GetData(ctx context.Context, key []byte) ([]byte, er
 
 // SessionIndex returns current storage bin (po) index.
 func (s *SwarmSyncerServer) SessionIndex() (uint64, error) {
-	return s.store.LastPullSubscriptionBinID(s.po)
+	return s.netStore.LastPullSubscriptionBinID(s.po)
 }
 
 // SetNextBatch retrieves the next batch of hashes from the localstore.
@@ -88,7 +88,7 @@ func (s *SwarmSyncerServer) SessionIndex() (uint64, error) {
 // are added in batchTimeout period, the batch will be returned. This function
 // will block until new chunks are received from localstore pull subscription.
 func (s *SwarmSyncerServer) SetNextBatch(from, to uint64) ([]byte, uint64, uint64, *HandoverProof, error) {
-	descriptors, stop := s.store.SubscribePull(context.Background(), s.po, from, to)
+	descriptors, stop := s.netStore.SubscribePull(context.Background(), s.po, from, to)
 	defer stop()
 
 	const batchTimeout = 2 * time.Second
@@ -118,7 +118,7 @@ func (s *SwarmSyncerServer) SetNextBatch(from, to uint64) ([]byte, uint64, uint6
 			// This is the most naive approach to label the chunk as synced
 			// allowing it to be garbage collected. A proper way requires
 			// validating that the chunk is successfully stored by the peer.
-			err := s.store.Set(context.Background(), chunk.ModeSetSync, d.Address)
+			err := s.netStore.Set(context.Background(), chunk.ModeSetSync, d.Address)
 			if err != nil {
 				return nil, 0, 0, nil, err
 			}
@@ -158,67 +158,31 @@ func (s *SwarmSyncerServer) SetNextBatch(from, to uint64) ([]byte, uint64, uint6
 
 // SwarmSyncerClient
 type SwarmSyncerClient struct {
-	store  chunk.FetchStore
+	netStore *storage.NetStore
-	peer   *Peer
+	peer     *Peer
-	stream Stream
+	stream   Stream
 }
 
 // NewSwarmSyncerClient is a contructor for provable data exchange syncer
-func NewSwarmSyncerClient(p *Peer, store chunk.FetchStore, stream Stream) (*SwarmSyncerClient, error) {
+func NewSwarmSyncerClient(p *Peer, netStore *storage.NetStore, stream Stream) (*SwarmSyncerClient, error) {
 	return &SwarmSyncerClient{
-		store:  store,
+		netStore: netStore,
-		peer:   p,
+		peer:     p,
-		stream: stream,
+		stream:   stream,
 	}, nil
 }
 
-// // NewIncomingProvableSwarmSyncer is a contructor for provable data exchange syncer
-// func NewIncomingProvableSwarmSyncer(po int, priority int, index uint64, sessionAt uint64, intervals []uint64, sessionRoot storage.Address, chunker *storage.PyramidChunker, store storage.ChunkStore, p Peer) *SwarmSyncerClient {
-// 	retrieveC := make(storage.Chunk, chunksCap)
-// 	RunChunkRequestor(p, retrieveC)
-// 	storeC := make(storage.Chunk, chunksCap)
-// 	RunChunkStorer(store, storeC)
-// 	s := &SwarmSyncerClient{
-// 		po:            po,
-// 		priority:      priority,
-// 		sessionAt:     sessionAt,
-// 		start:         index,
-// 		end:           index,
-// 		nextC:         make(chan struct{}, 1),
-// 		intervals:     intervals,
-// 		sessionRoot:   sessionRoot,
-// 		sessionReader: chunker.Join(sessionRoot, retrieveC),
-// 		retrieveC:     retrieveC,
-// 		storeC:        storeC,
-// 	}
-// 	return s
-// }
-
-// // StartSyncing is called on the Peer to start the syncing process
-// // the idea is that it is called only after kademlia is close to healthy
-// func StartSyncing(s *Streamer, peerId enode.ID, po uint8, nn bool) {
-// 	lastPO := po
-// 	if nn {
-// 		lastPO = maxPO
-// 	}
-//
-// 	for i := po; i <= lastPO; i++ {
-// 		s.Subscribe(peerId, "SYNC", newSyncLabel("LIVE", po), 0, 0, High, true)
-// 		s.Subscribe(peerId, "SYNC", newSyncLabel("HISTORY", po), 0, 0, Mid, false)
-// 	}
-// }
-
 // RegisterSwarmSyncerClient registers the client constructor function for
 // to handle incoming sync streams
-func RegisterSwarmSyncerClient(streamer *Registry, store chunk.FetchStore) {
+func RegisterSwarmSyncerClient(streamer *Registry, netStore *storage.NetStore) {
 	streamer.RegisterClientFunc("SYNC", func(p *Peer, t string, live bool) (Client, error) {
-		return NewSwarmSyncerClient(p, store, NewStream("SYNC", t, live))
+		return NewSwarmSyncerClient(p, netStore, NewStream("SYNC", t, live))
 	})
 }
 
 // NeedData
 func (s *SwarmSyncerClient) NeedData(ctx context.Context, key []byte) (wait func(context.Context) error) {
-	return s.store.FetchFunc(ctx, key)
+	return s.netStore.FetchFunc(ctx, key)
 }
 
 // BatchDone