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audio: Bug fix: Deadlock at acquiring the semaphore

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Closes #1469
This commit is contained in:
Hajime Hoshi 2021-01-23 23:07:16 +09:00
parent 71e307a2fc
commit 514904392c
1 changed files with 8 additions and 9 deletions
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17
audio/writerplayer.go
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@ -168,9 +168,6 @@ func (p *writerPlayer) loop() {
}
func (p *writerPlayer) read() ([]byte, bool) {
p.m.Lock()
defer p.m.Unlock()
if p.context.hasError() {
return nil, false
}
@ -179,18 +176,20 @@ func (p *writerPlayer) read() ([]byte, bool) {
return nil, false
}
p.context.acquireSemaphore()
defer func() {
p.context.releaseSemaphore()
}()
p.m.Lock()
defer p.m.Unlock()
// playing can be false when pausing.
if !p.playing {
return nil, false
}
const bufSize = 2048
p.context.acquireSemaphore()
defer func() {
p.context.releaseSemaphore()
}()
if p.readbuf == nil {
p.readbuf = make([]byte, bufSize)
}