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std::shared_mutex::try_lock

STD：：共享[医]互斥：：尝试[医]锁

bool try_lock(​(since C++17)

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。

如果try_lock由已经拥有mutex在任何模式%28共享或独占%29中，行为都是未定义的。

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

locklocks the mutex, blocks if the mutex is not available (public member function)
unlockunlocks the mutex (public member function)

c MTX文件[医]幽会

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