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author | Ivan Daniluk <ivan.daniluk@gmail.com> | 2017-08-09 01:10:09 +0800 |
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committer | Péter Szilágyi <peterke@gmail.com> | 2017-08-09 01:10:09 +0800 |
commit | 17ce0a37de5a2712a8bf9d58df705e718b3b2cd6 (patch) | |
tree | e160c6df385c0c737dd0ff97647ec30436d7b355 /eth/downloader/downloader_test.go | |
parent | 26b2d6e1aa25c847e452173b412b57d8a93c1eaa (diff) | |
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eth/downloader: fix race in downloadTesterPeer (#14942)
* eth/downloader: fix race in downloadTesterPeer
Signed-off-by: Ivan Daniluk <ivan.daniluk@gmail.com>
* eth/downloader: minor datarace fix cleanup
Diffstat (limited to 'eth/downloader/downloader_test.go')
-rw-r--r-- | eth/downloader/downloader_test.go | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go index 36e8c800f..d66aafe94 100644 --- a/eth/downloader/downloader_test.go +++ b/eth/downloader/downloader_test.go @@ -403,7 +403,7 @@ func (dl *downloadTester) newSlowPeer(id string, version int, hashes []common.Ha dl.lock.Lock() defer dl.lock.Unlock() - var err = dl.downloader.RegisterPeer(id, version, &downloadTesterPeer{dl, id, delay}) + var err = dl.downloader.RegisterPeer(id, version, &downloadTesterPeer{dl: dl, id: id, delay: delay}) if err == nil { // Assign the owned hashes, headers and blocks to the peer (deep copy) dl.peerHashes[id] = make([]common.Hash, len(hashes)) @@ -465,6 +465,24 @@ type downloadTesterPeer struct { dl *downloadTester id string delay time.Duration + lock sync.RWMutex +} + +// setDelay is a thread safe setter for the network delay value. +func (dlp *downloadTesterPeer) setDelay(delay time.Duration) { + dlp.lock.Lock() + defer dlp.lock.Unlock() + + dlp.delay = delay +} + +// waitDelay is a thread safe way to sleep for the configured time. +func (dlp *downloadTesterPeer) waitDelay() { + dlp.lock.RLock() + delay := dlp.delay + dlp.lock.RUnlock() + + time.Sleep(delay) } // Head constructs a function to retrieve a peer's current head hash @@ -499,7 +517,7 @@ func (dlp *downloadTesterPeer) RequestHeadersByHash(origin common.Hash, amount i // origin; associated with a particular peer in the download tester. The returned // function can be used to retrieve batches of headers from the particular peer. func (dlp *downloadTesterPeer) RequestHeadersByNumber(origin uint64, amount int, skip int, reverse bool) error { - time.Sleep(dlp.delay) + dlp.waitDelay() dlp.dl.lock.RLock() defer dlp.dl.lock.RUnlock() @@ -525,7 +543,7 @@ func (dlp *downloadTesterPeer) RequestHeadersByNumber(origin uint64, amount int, // peer in the download tester. The returned function can be used to retrieve // batches of block bodies from the particularly requested peer. func (dlp *downloadTesterPeer) RequestBodies(hashes []common.Hash) error { - time.Sleep(dlp.delay) + dlp.waitDelay() dlp.dl.lock.RLock() defer dlp.dl.lock.RUnlock() @@ -550,7 +568,7 @@ func (dlp *downloadTesterPeer) RequestBodies(hashes []common.Hash) error { // peer in the download tester. The returned function can be used to retrieve // batches of block receipts from the particularly requested peer. func (dlp *downloadTesterPeer) RequestReceipts(hashes []common.Hash) error { - time.Sleep(dlp.delay) + dlp.waitDelay() dlp.dl.lock.RLock() defer dlp.dl.lock.RUnlock() @@ -572,7 +590,7 @@ func (dlp *downloadTesterPeer) RequestReceipts(hashes []common.Hash) error { // peer in the download tester. The returned function can be used to retrieve // batches of node state data from the particularly requested peer. func (dlp *downloadTesterPeer) RequestNodeData(hashes []common.Hash) error { - time.Sleep(dlp.delay) + dlp.waitDelay() dlp.dl.lock.RLock() defer dlp.dl.lock.RUnlock() @@ -1746,7 +1764,7 @@ func testFastCriticalRestarts(t *testing.T, protocol int, progress bool) { for i := 0; i < fsPivotInterval; i++ { tester.peerMissingStates["peer"][headers[hashes[fsMinFullBlocks+i]].Root] = true } - (tester.downloader.peers.peers["peer"].peer).(*downloadTesterPeer).delay = 500 * time.Millisecond // Enough to reach the critical section + (tester.downloader.peers.peers["peer"].peer).(*downloadTesterPeer).setDelay(500 * time.Millisecond) // Enough to reach the critical section // Synchronise with the peer a few times and make sure they fail until the retry limit for i := 0; i < int(fsCriticalTrials)-1; i++ { @@ -1765,7 +1783,7 @@ func testFastCriticalRestarts(t *testing.T, protocol int, progress bool) { tester.lock.Lock() tester.peerHeaders["peer"][hashes[fsMinFullBlocks-1]] = headers[hashes[fsMinFullBlocks-1]] tester.peerMissingStates["peer"] = map[common.Hash]bool{tester.downloader.fsPivotLock.Root: true} - (tester.downloader.peers.peers["peer"].peer).(*downloadTesterPeer).delay = 0 + (tester.downloader.peers.peers["peer"].peer).(*downloadTesterPeer).setDelay(0) tester.lock.Unlock() } } |