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authorJanoš Guljaš <janos@users.noreply.github.com>2019-02-13 20:03:23 +0800
committerRafael Matias <rafael@skyle.net>2019-02-19 20:11:52 +0800
commit8ea3d8ad90f90e7233e829ad141acfd9d911658c (patch)
treeed6e0fcb16c90c460052a62a66d3aa253ea3498d /swarm/network/kademlia.go
parenta0127019c3d516e8d8cf83839583bcf71af763e0 (diff)
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swarm: fix network/stream data races (#19051)
* swarm/network/stream: newStreamerTester cleanup only if err is nil * swarm/network/stream: raise newStreamerTester waitForPeers timeout * swarm/network/stream: fix data races in GetPeerSubscriptions * swarm/storage: prevent data race on LDBStore.batchesC https://github.com/ethersphere/go-ethereum/issues/1198#issuecomment-461775049 * swarm/network/stream: fix TestGetSubscriptionsRPC data race https://github.com/ethersphere/go-ethereum/issues/1198#issuecomment-461768477 * swarm/network/stream: correctly use Simulation.Run callback https://github.com/ethersphere/go-ethereum/issues/1198#issuecomment-461783804 * swarm/network: protect addrCountC in Kademlia.AddrCountC function https://github.com/ethersphere/go-ethereum/issues/1198#issuecomment-462273444 * p2p/simulations: fix a deadlock calling getRandomNode with lock https://github.com/ethersphere/go-ethereum/issues/1198#issuecomment-462317407 * swarm/network/stream: terminate disconnect goruotines in tests * swarm/network/stream: reduce memory consumption when testing data races * swarm/network/stream: add watchDisconnections helper function * swarm/network/stream: add concurrent counter for tests * swarm/network/stream: rename race/norace test files and use const * swarm/network/stream: remove watchSim and its panic * swarm/network/stream: pass context in watchDisconnections * swarm/network/stream: add concurrent safe bool for watchDisconnections * swarm/storage: fix LDBStore.batchesC data race by not closing it (cherry picked from commit 3fd6db2bf63ce90232de445c7f33943406a5e634)
Diffstat (limited to 'swarm/network/kademlia.go')
-rw-r--r--swarm/network/kademlia.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/swarm/network/kademlia.go b/swarm/network/kademlia.go
index 9f4245603..1193e3b65 100644
--- a/swarm/network/kademlia.go
+++ b/swarm/network/kademlia.go
@@ -353,6 +353,9 @@ func (k *Kademlia) sendNeighbourhoodDepthChange() {
// Not receiving from the returned channel will block Register function
// when address count value changes.
func (k *Kademlia) AddrCountC() <-chan int {
+ k.lock.Lock()
+ defer k.lock.Unlock()
+
if k.addrCountC == nil {
k.addrCountC = make(chan int)
}