多个用 PTHREAD_MUTEX_INITIALIZER 初始化的 pthread_mutex_t 不是同一个 mutex
参考:http://stackoverflow.com/questions/6310746/initializing-pthread-mutexes【结论】staticpthread_mutex_tm0=PTHREAD_MUTEX_INITIALIZER;
staticpthread_mutex_tm1=PTHREAD_MUTEX_INITIALIZER;
staticpthread_mutex_