std::mutex Defined in header<mutex> classmutex; (since C++11) Themutexclass is a synchronization primitive that can be used to protect shared data from being simultaneously accessed by multiple threads. mutexof
若已占有 mutex 的线程调用 try_lock,则行为未定义。 若此操作返回 true,则同一互斥体上的先前 unlock() 操作同步于(定义于 std::memory_order)它。注意若此操作返回 false,则先前的 lock() 不与之同步。 参数(无) 返回值若成功取得锁则为 true,否则为 false。 异常...
cpp reference: conditional_variable Even if the shared variable is atomic, it must be modified under the mutex in order to correctly publish the modification to the waiting thread. Any thread that intends to wait on std::condition_variable has to...
若调用try_lock抛出异常,则在重抛前对任何已锁对象调用unlock。 --- CPP Reference voidChangeValueAdopt(BrainBox& skylake, BrainBox&coffeelake) { std::lock(skylake.c_mutex, coffeelake.c_mutex); std::unique_lock<std::mutex>locker1(skylake.c_mutex, std::adopt_lock); std::unique_lock<std::mu...
代码例子:(参考了 CPP Reference 当中例子) classBrainBox{public:std::mutexc_mutex;intvalue=0;};voidChangeValue(BrainBox&skylake,BrainBox&coffeelake){std::unique_lock<std::mutex>locker1(skylake.c_mutex,std::defer_lock);std::unique_lock<std::mutex>locker2(coffeelake.c_mutex,std::defer_lock)...
--- CPP Reference 代码语言:javascript 代码运行次数:0 运行 AI代码解释 void ChangeValueAdopt(BrainBox& skylake, BrainBox& coffeelake) { std::lock(skylake.c_mutex, coffeelake.c_mutex); std::unique_lock<std::mutex> locker1(skylake.c_mutex, std::adopt_lock); std::unique_lock<std::mutex> ...
std::mutex:: std::mutex::native_handle From cppreference.com <cpp |thread |mutex Returns the underlying implementation-defined native handle object. Parameters (none) Return value Implementation-defined native handle object. Exceptions
shared_lock(shared_lock&&other)noexcept; (2)(since C++14) explicitshared_lock(mutex_type&m); (3)(since C++14) shared_lock(mutex_type&m,std::defer_lock_tt)noexcept; (4)(since C++14) shared_lock(mutex_type&m,std::try_to_lock_tt); ...
参考: https://en.cppreference.com/w/cpp/thread/mutex/locken.cppreference.com/w/cpp/thread/mutex/lock main.cpp #include<iostream>#include<chrono>#include<thread>#include<mutex>intg_num=0;// protected by g_num_mutexstd::mutexg_num_mutex;voidslow_increment(intid){for(inti=0;i<3;++...
在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。 http://en.cppreference.com/w/cpp/线程/mutex/unlock 本文档系腾讯云开发者社区成员共同维护,如有问题请联系cloudcommunity@tencent.com 最后更新于:2017-12-18 分享 扫描二维码 扫码关注腾讯云开发者 领取腾讯云代金券...