Linux pthread常用方法

Posted 2022-11-29 绿叶清风

PThread参考

• pthread常用方法：

  int pthread_create(pthread_t *thread, const pthreae_attr_t *attr, void *(*start)(void *), void *arg);
  pthread_t pthread_self(void);
  int pthread_equal(pthread_t tl, pthread_t t2);  // 相等返回非0值
  int pthread_detach(pthread_t thread);
  int pthread_exit(void *value_ptr);//退出线程
  int pthread_cancel(pthread_t thread);//取消线程
  int pthread_join(pthread_t thread, void **value_ptr);//等待线程结束
  

• pthread同步机制 ：

  互斥量：
  	int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr);
  	int pthread_mutex_destroy(pthread_mutex_t *mutex);
  
  互斥量(如自定义结构体)加锁：
  	pthread_mutex_lock
  	pthread_mutex_trylock（非阻塞式互斥量锁）
  	pthread_mutex_unlock
  	//多线程下，确保init_routine参数对应的方法只执行一次
  	int pthread_once(pthread_once_t *once_control, void (*init_routine) (void))；
  
  条件变量：
     pthread_cond_tcond = PTHREAD_COND_INITIALIZER;
     int pthread_cond_init(pthread_cond_t *cond, pthread_condattr_t *condattr);
     int pthread_cond_destroy(pthread_cond_t *cond);
     int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
     int pthread_cond_timedwait(pthread_cond *cond, pthread_mutex_t *mutex, struct timespec *expiration);