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network: avoid accidental double-close of blockFetcherFin channel

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It's not supposed to happen, but if blockfetcher goes wild and calls this
twice it can ruin the system, so better safe than sorry.

Signed-off-by: Roman Khimov <roman@nspcc.ru>
This commit is contained in:
Roman Khimov 2024-12-06 11:38:42 +03:00
parent c812150d83
commit 109319d220
1 changed files with 2 additions and 3 deletions
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5
pkg/network/server.go
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@ -226,9 +226,8 @@ func newServerFromConstructors(config ServerConfig, chain Ledger, stSync StateSy
s.bSyncQueue = bqueue.New(s.stateSync, log, nil, bqueue.DefaultCacheSize, updateBlockQueueLenMetric, bqueue.NonBlocking)
s.bFetcherQueue = bqueue.New(chain, log, nil, s.NeoFSBlockFetcherCfg.BQueueSize, updateBlockQueueLenMetric, bqueue.Blocking)
var err error
s.blockFetcher, err = blockfetcher.New(chain, s.NeoFSBlockFetcherCfg, log, s.bFetcherQueue.PutBlock, func() {
close(s.blockFetcherFin)
})
s.blockFetcher, err = blockfetcher.New(chain, s.NeoFSBlockFetcherCfg, log, s.bFetcherQueue.PutBlock,
sync.OnceFunc(func() { close(s.blockFetcherFin) }))
if err != nil {
return nil, fmt.Errorf("failed to create NeoFS BlockFetcher: %w", err)
}