aboutsummaryrefslogtreecommitdiffstats
path: root/eth/sync.go
diff options
context:
space:
mode:
authorPéter Szilágyi <peterke@gmail.com>2015-06-09 00:24:56 +0800
committerPéter Szilágyi <peterke@gmail.com>2015-06-09 00:24:56 +0800
commitfdccce781e94819ec9dc13ef6540a33efd3b26c6 (patch)
tree5d5a9c8c3f60146c34138088727143de86270121 /eth/sync.go
parent8c012e103faf2283e9be3fab26dbcf4cc63c09da (diff)
downloadgo-tangerine-fdccce781e94819ec9dc13ef6540a33efd3b26c6.tar
go-tangerine-fdccce781e94819ec9dc13ef6540a33efd3b26c6.tar.gz
go-tangerine-fdccce781e94819ec9dc13ef6540a33efd3b26c6.tar.bz2
go-tangerine-fdccce781e94819ec9dc13ef6540a33efd3b26c6.tar.lz
go-tangerine-fdccce781e94819ec9dc13ef6540a33efd3b26c6.tar.xz
go-tangerine-fdccce781e94819ec9dc13ef6540a33efd3b26c6.tar.zst
go-tangerine-fdccce781e94819ec9dc13ef6540a33efd3b26c6.zip
eth: fetch announced hashes from origin, periodically
Diffstat (limited to 'eth/sync.go')
-rw-r--r--eth/sync.go58
1 files changed, 55 insertions, 3 deletions
diff --git a/eth/sync.go b/eth/sync.go
index 56084f2f0..1a1cbdb47 100644
--- a/eth/sync.go
+++ b/eth/sync.go
@@ -5,15 +5,67 @@ import (
"sync/atomic"
"time"
+ "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
)
-// update periodically tries to synchronise with the network, both downloading
-// hashes and blocks as well as retrieving cached ones.
-func (pm *ProtocolManager) update() {
+// blockAnnounce is the hash notification of the availability of a new block in
+// the network.
+type blockAnnounce struct {
+ hash common.Hash
+ peer *peer
+ time time.Time
+}
+
+// fetcher is responsible for collecting hash notifications, and periodically
+// checking all unknown ones and individually fetching them.
+func (pm *ProtocolManager) fetcher() {
+ announces := make(map[common.Hash]*blockAnnounce)
+ request := make(map[*peer][]common.Hash)
+ cycle := time.Tick(notifyCheckCycle)
+
+ // Iterate the block fetching until a quit is requested
+ for {
+ select {
+ case notifications := <-pm.newHashCh:
+ // A batch of hashes the notified, schedule them for retrieval
+ glog.V(logger.Detail).Infof("Scheduling %d hash announces from %s", len(notifications), notifications[0].peer.id)
+ for _, announce := range notifications {
+ announces[announce.hash] = announce
+ }
+
+ case <-cycle:
+ // Check if any notified blocks failed to arrive
+ for hash, announce := range announces {
+ if time.Since(announce.time) > notifyArriveTimeout {
+ if !pm.chainman.HasBlock(hash) {
+ request[announce.peer] = append(request[announce.peer], hash)
+ }
+ delete(announces, hash)
+ }
+ }
+ if len(request) == 0 {
+ break
+ }
+ // Send out all block requests
+ for peer, hashes := range request {
+ glog.V(logger.Detail).Infof("Fetching specific %d blocks from %s", len(hashes), peer.id)
+ peer.requestBlocks(hashes)
+ }
+ request = make(map[*peer][]common.Hash)
+
+ case <-pm.quitSync:
+ return
+ }
+ }
+}
+
+// syncer is responsible for periodically synchronising with the network, both
+// downloading hashes and blocks as well as retrieving cached ones.
+func (pm *ProtocolManager) syncer() {
forceSync := time.Tick(forceSyncCycle)
blockProc := time.Tick(blockProcCycle)
blockProcPend := int32(0)