std::recursive_timed_mutex::try_lock
bool try_lock(); | ? | (since C++11) |
|---|
试图锁定互斥体。马上回来。关于成功锁定获取返回true，否则返回false...
此函数允许伪造失败并返回。false即使互斥锁目前没有被任何其他线程锁定。
线程可以调用try_lock在递归互斥体上重复。成功呼叫try_lock递增ownsership计数：只有在线程进行匹配次数的调用之后，互斥锁才会释放。unlock...
所有权的最大级别未指定。打电话给try_lock会回来false如果超过此数字。
优先unlock()对同一个互斥体的操作同步性中定义的28名ASstd::memory_order%29如果返回此操作true.注意到以前lock()如果此操作返回，则不与其同步。false...
参数
%280%29
返回值
true如果成功获取锁，则为false...
例外
%280%29
例
另见
lock | locks the mutex, blocks if the mutex is not available (public member function) |
|---|---|
try_lock_for | tries to lock the mutex, returns if the mutex has beenunavailable for the specified timeout duration (public member function) |
try_lock_until | tries to lock the mutex, returns if the mutex has beenunavailable until specified time point has been reached (public member function) |
unlock | unlocks the mutex (public member function) |
c MTX文件[医]幽会
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