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audio/internal/readerdriver: Bug fix: some of waveOut* functions should be protected by mutex (Windows)

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Updates #1652
This commit is contained in:
Hajime Hoshi 2021-05-28 21:10:34 +09:00
parent 100b42513e
commit 43789c72a9
1 changed files with 9 additions and 1 deletions
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10
audio/internal/readerdriver/driver_windows.go
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@ -103,7 +103,7 @@ type players struct {
waveOut uintptr
headers []*header
// cond protects only the member 'players'.
// cond protects only the member 'players' and waveOut functions.
// The other members don't have to be protected.
cond *sync.Cond
}
@ -233,6 +233,9 @@ func (p *players) suspend() error {
if p.waveOut == 0 {
return nil
}
p.cond.L.Lock()
defer p.cond.L.Unlock()
if err := waveOutPause(p.waveOut); err != nil {
return err
}
@ -243,6 +246,9 @@ func (p *players) resume() error {
if p.waveOut == 0 {
return nil
}
p.cond.L.Lock()
defer p.cond.L.Unlock()
if err := waveOutRestart(p.waveOut); err != nil {
return err
}
@ -341,6 +347,8 @@ func (p *players) readAndWriteBuffers(players []*playerImpl) error {
p.buf = append(p.buf, buf...)
}
p.cond.L.Lock()
defer p.cond.L.Unlock()
for _, h := range p.headers {
if len(p.buf) < headerBufferSize {
break