// returns 0 on success to take mutex, -1 on genric failure of releasing mutex, -2 on failure upon null pointer. m is pointer obtained w/ ace_mutex_new(),
int8_t ace_mutex_release(void* m)
{
ACE_Recursive_Thread_Mutex* acemtx = (ACE_Recursive_Thread_Mutex*)m;
if(NULL == acemtx)
{
return(-2);
}
acemtx->release();
return(0);
}
// returns 0 on success to take mutex, -3 on failure upon timeout, -2 on failure upon null pointer. m is pointer obtained w/ ace_mutex_new(), tout_usec is in microsec (no timeout is 0xffffffff).
int8_t ace_mutex_take(void* m, uint32_t tout_usec)
{
ACE_Recursive_Thread_Mutex* acemtx = (ACE_Recursive_Thread_Mutex*)m;
if(NULL == acemtx)
{
return(-2);
}
acemtx->acquire();
return(0);
}
int
ThreadTest::run(bool doubleLock)
{
ACE_hthread_t m_workerThreadHandle;
ACE_thread_t m_workerThreadId;
m_workerRunning = false;
m_doubleLock = doubleLock;
m_mutex.acquire();
// Start worker thread
int rval = ACE_Thread::spawn((ACE_THR_FUNC) workerThreadWrapper, this,
THR_JOINABLE | THR_NEW_LWP, &m_workerThreadId, &m_workerThreadHandle,
ACE_DEFAULT_THREAD_PRIORITY);
if (rval == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%t Could not start worker thread!\n")),
1);
}
if (!m_workerRunning)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("%t Waiting for worker thread to start running...\n")));
m_startedCondition.wait();
}
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("%t Worker thread is running...\n")));
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("%t Broadcasting STOP Condition...\n")));
m_stopCondition.broadcast();
m_mutex.release();
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("%t Joining worker thread...\n")));
ACE_Thread::join(m_workerThreadHandle);
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("%t Test finished...\n")));
return 0;
}
int
ACE_Condition<ACE_Recursive_Thread_Mutex>::wait (ACE_Recursive_Thread_Mutex &mutex,
const ACE_Time_Value *abstime)
{
ACE_recursive_mutex_state mutex_state_holder;
ACE_recursive_thread_mutex_t &recursive_mutex = mutex.lock ();
if (ACE_OS::recursive_mutex_cond_unlock (&recursive_mutex,
mutex_state_holder) == -1)
return -1;
// We wait on the condition, specifying the nesting mutex. For platforms
// with ACE_HAS_RECURSIVE_MUTEXES, this is the recursive mutex itself,
// and is the same as recursive_mutex, above. The caller should have been
// holding the lock on entry to this method, and it is still held.
// For other platforms, this is the nesting mutex that guards the
// ACE_recursive_mutex_t internals, and recursive_mutex_cond_unlock()
// returned with the lock held, but waiters primed and waiting to be
// released. At cond_wait below, the mutex will be released.
// On return, it will be reacquired.
int const result = abstime == 0
? ACE_OS::cond_wait (&this->cond_,
&mutex.get_nesting_mutex ())
: ACE_OS::cond_timedwait (&this->cond_,
&mutex.get_nesting_mutex (),
const_cast <ACE_Time_Value *> (abstime));
// We are holding the mutex, whether the wait succeeded or failed.
// Stash errno (in case it failed) and then we need to reset the
// recursive mutex state to what it was on entry to this method.
// Resetting it may require a wait for another thread to release
// the ACE_recursive_thread_mutex_t if this is a platform without
// ACE_HAS_RECURSIVE_MUTEXES, and recursive_mutex_cond_relock() takes
// care of that.
{
ACE_Errno_Guard error (errno);
ACE_OS::recursive_mutex_cond_relock (&recursive_mutex,
mutex_state_holder);
}
return result;
}
