Possible data race issues

[ryancaicse]

Hi, it seems the pointer variable self->locked should be guarded by the lock self->mtx.
However, it seems the self->locked is not protected at Line 489 due to the early lock releases at Line 488.

julius/msvc/Library_PortAudio/src/src/os/unix/pa_unix_util.c

Lines 476 to 493 in 4182bf0

	PaError PaUnixThread_NotifyParent( PaUnixThread* self )
	{
	PaError result = paNoError;
	PA_UNLESS( self->parentWaiting, paInternalError );
	if( !self->locked )
	{
	PA_ENSURE( PaUnixMutex_Lock( &self->mtx ) );
	self->locked = 1;
	}
	self->parentWaiting = 0;
	pthread_cond_signal( &self->cond );
	PA_ENSURE( PaUnixMutex_Unlock( &self->mtx ) );
	self->locked = 0;
	error:
	return result;
	}

[ryancaicse]

Similarly to

julius/libsent/src/adin/pa/os/unix/pa_unix_util.c

Lines 441 to 449 in 4182bf0

	if( !self->locked )
	{
	PA_ENSURE( PaUnixMutex_Lock( &self->mtx ) );
	self->locked = 1;
	}
	self->parentWaiting = 0;
	pthread_cond_signal( &self->cond );
	PA_ENSURE( PaUnixMutex_Unlock( &self->mtx ) );
	self->locked = 0;