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connmgr: Check for canceled connection before connect

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This is a port of btcd commit 9bfb2ca0346b57e246cc96fa31074df521175240.

This will ensure cancelation is reliable for all cases.
This commit is contained in:
Roei Erez 2019-04-10 05:54:18 +03:00 committed by Matheus Degiovani
parent 79d444257f
commit 5048959fdc
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GPG Key ID: 60AC5E69F376D6E6
1 changed files with 8 additions and 0 deletions
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8
connmgr/connmanager.go
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@ -409,6 +409,14 @@ func (cm *ConnManager) Connect(c *ConnReq) {
if atomic.LoadInt32(&cm.stop) != 0 {
return
}
// During the time we wait for retry there is a chance that this
// connection was already cancelled.
if c.State() == ConnCanceled {
log.Debugf("Ignoring connect for canceled connreq=%v", c)
return
}
if atomic.LoadUint64(&c.id) == 0 {
atomic.StoreUint64(&c.id, atomic.AddUint64(&cm.connReqCount, 1))