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Lock the sequence counter in nextSeq

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Did you smell that race condition?
This commit is contained in:
wfjsw 2020-08-21 13:36:28 +08:00
parent 85a81c88b7
commit b8b4aba13d
1 changed files with 5 additions and 0 deletions
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5
client/client.go
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@ -77,6 +77,8 @@ type QQClient struct {
groupListLock sync.Mutex
msgSvcLock sync.Mutex
seqLock sync.Mutex
}
type loginSigInfo struct {
@ -818,6 +820,9 @@ func (c *QQClient) registerClient() {
}
func (c *QQClient) nextSeq() uint16 {
c.seqLock.Lock()
defer c.seqLock.Unlock()
c.SequenceId++
c.SequenceId &= 0x7FFF
if c.SequenceId == 0 {