POSIX的Linux操作系统没有提供线程挂起和恢复的例程，在网上找了找，看到一个老外写的程序，感觉想法不错，放在这里大家分享一下。理论上应该可以实现，不过我没有试，给大家提供一个参考。

void CPrcThread::suspend()
{
ifdef WIN32
//do windows specific things here...
#endif

#ifdef __linux__
pthread_mutex_lock(&mutex);
flag--;
pthread_mutex_unlock(&mutex);
#endif
}

void CPrcThread::resume()
{
#ifdef WIN32
//do windows specific things here...
#endif

#ifdef __linux__
pthread_mutex_lock(&mutex);
flag++;
pthread_cond_signal(&cond);
pthread_mutex_unlock(&mutex);
#endif
}

void* CPrcThread::threadFunc(void* pParameter)
{

while(1)
{

#ifdef WIN32
//do windows specific things here...
//no member variables accessed here so its ok...
#endif

#ifdef __linux__
pthread_mutex_lock(&mutex);
while(flag <= 0)
{
pthread_cond_wait(&cond, &mutex);
}
pthread_mutex_unlock(&mutex);
#endif

//actual thread work here

}

}