BOOL MutexCloseHandle(HANDLE handle)
{
WINPR_MUTEX* mutex = (WINPR_MUTEX*) handle;
int rc;
if (!MutexIsHandled(handle))
return FALSE;
rc = pthread_mutex_trylock(&mutex->mutex);
switch(rc)
{
case 0: /* The mutex is now locked. */
break;
/* If we already own the mutex consider it a success. */
case EDEADLK:
case EBUSY:
break;
default:
#if defined(WITH_DEBUG_MUTEX)
{
size_t used = 0, i;
void* stack = winpr_backtrace(20);
char **msg = NULL;
if (stack)
msg = winpr_backtrace_symbols(stack, &used);
if (msg)
{
for(i=0; i<used; i++)
WLog_ERR(TAG, "%2d: %s", i, msg[i]);
}
free (msg);
winpr_backtrace_free(stack);
}
#endif
WLog_ERR(TAG, "pthread_mutex_trylock failed with %s [%d]", strerror(rc), rc);
return FALSE;
}
rc = pthread_mutex_unlock(&mutex->mutex);
if (rc != 0)
{
WLog_ERR(TAG, "pthread_mutex_unlock failed with %s [%d]", strerror(rc), rc);
return FALSE;
}
rc = pthread_mutex_destroy(&mutex->mutex);
if (rc != 0)
{
WLog_ERR(TAG, "pthread_mutex_destroy failed with %s [%d]", strerror(rc), rc);
return FALSE;
}
free(handle);
return TRUE;
}
static int MutexGetFd(HANDLE handle)
{
WINPR_MUTEX *mux = (WINPR_MUTEX *)handle;
if (!MutexIsHandled(handle))
return -1;
/* TODO: Mutex does not support file handles... */
(void)mux;
return -1;
}
BOOL MutexCloseHandle(HANDLE handle)
{
WINPR_MUTEX* mutex = (WINPR_MUTEX*) handle;
int rc;
if (!MutexIsHandled(handle))
return FALSE;
if ((rc = pthread_mutex_destroy(&mutex->mutex)))
{
WLog_ERR(TAG, "pthread_mutex_destroy failed with %s [%d]", strerror(rc), rc);
#if defined(WITH_DEBUG_MUTEX)
{
size_t used = 0, i;
void* stack = winpr_backtrace(20);
char **msg = NULL;
if (stack)
msg = winpr_backtrace_symbols(stack, &used);
if (msg)
{
for(i=0; i<used; i++)
WLog_ERR(TAG, "%2"PRIdz": %s", i, msg[i]);
}
free (msg);
winpr_backtrace_free(stack);
}
#endif
/**
* Note: unfortunately we may not return FALSE here since CloseHandle(hmutex) on
* Windows always seems to succeed independently of the mutex object locking state
*/
}
free(handle);
return TRUE;
}
