ACE - ACE_Recursive_Thread_Mutex, ACE_Thread_Mutex, ACE_Condition .

来源：互联网发布：2017最新网络流行语编辑：程序博客网时间：2024/05/29 12:59

// Donot know when and where to use ACE_Thread_Mutex, I always use ACE_Recursive_Thread_Mutex.

1. define

ACE_Recursive_Thread_Mutex mMutex;

ACE_Condition<ACE_Recursive_Thread_Mutex> * mCondition;

mCondition = new ACE_Condition<ACE_Recursive_Thread_Mutex>(mMutex);

2. Usage

2.1 read

    mCondition->mutex().acquire_read();
    // to do your codes.
    mCondition->mutex().release();

2.2 write

mCondition->mutex().acquire_write();

// to do your codes.
mCondition->mutex().release();

2.3 signal

mCondition->broadcast();
//mCondition->signal();

2.4 wait

mStateCondition->wait();

//or

    ACE_Time_Value ace_timeout(timeout);
    ACE_Time_Value ace_absolute_time(ACE_OS::gettimeofday() + ace_timeout);
    if (mStateCondition->wait(&ace_absolute_time) == -1)
    {

// failed.
}

3. deconstuctor

if (mCondition != 0)
{
delete mCondition;
mCondition=0;
}

4. Simplified mode

ACE_Guard<ACE_Recursive_Thread_Mutex> guard(mMutex);