类unique_lock是一种通用互斥包装器,允许延迟锁定、有时限的锁定尝试、递归锁定、所有权转移和与条件变量一同使用。 类unique_lock可移动,但不可复制——它满足可移动构造(MoveConstructible)和可移动赋值(MoveAssignable)但不满足可复制构造(CopyConstructible)或可复制赋值(CopyAssignable)。
构造unique_lock,可选地锁定提供的互斥体。 1) 构造无关联互斥体的 unique_lock。2) 移动构造函数。以 other 的内容初始化 unique_lock。令 other 无关联互斥体。3-8) 构造以 m 为关联互斥体的 unique_lock。另外:3) 通过调用 m.lock() 锁定关联互斥体。
unique_lock::try_lock_for unique_lock::try_lock_until unique_lock::unlock Modifiers unique_lock::swap unique_lock::release Observers unique_lock::mutex unique_lock::owns_lock unique_lock::operator bool Non-member functions swap(std::unique_lock) ...
unique_lock::swap unique_lock::release Observers unique_lock::mutex unique_lock::owns_lock unique_lock::operator bool Non-member functions swap(std::unique_lock)void swap( unique_lock& other ) noexcept; (since C++11) Exchanges the internal states of the lock objects. Parameters...
scope_exit−scope_fail−scope_success−unique_resource Parallelism library extensions v2 (parallelism TS v2) simd Concurrency library extensions (concurrency TS) Transactional Memory(TM TS) Reflection(reflection TS) External Links−Non-ANSI/ISO Libraries−Index−std Symbol Index ...
std::unique_lock<std::mutex> lock; extern bool predicate(); // 调用方式 1 cond.wait(lock); // 调用方式 2 cond.wait(lock, predicate); wait不断地尝试重新获取并加锁该互斥量,如果获取不到,它就卡在这里并反复尝试重新获取,如果获取到了,执行流程就继续往下走 wait在获取到互斥量并加锁了互斥量...
std::unique_lock<std::mutex> lock; extern bool predicate(); // 调用方式 1 cond.wait(lock); // 调用方式 2 cond.wait(lock, predicate); wait不断地尝试重新获取并加锁该互斥量,如果获取不到,它就卡在这里并反复尝试重新获取,如果获取到了,执行流程就继续往下走 wait在获取到互斥量并加锁了互斥量...
{std::unique_lock<std::mutex>lock(m);while(!done){while(!notified){// loop to avoid spurious wakeupscond_var.wait(lock);}while(!produced_nums.empty()){std::cout<<"consuming "<<produced_nums.front()<<'\n';produced_nums.pop();}notified=false;}});producer.join();consumer.join()...
unique_lock<Mutex> std::adopt_lock std::try_to_lock std::defer_lock std::unique_lock<Mutex>::release std::call_once std::condition_variable 创建条件变量 等待条件变量被通知 std::condition_variable::notify_one std::condition_variable::notify_all 获取线程的运行结果 创建异步任务 获取异步任务的...
std::unique_lock Definido en el archivo de encabezado<mutex> template<classMutex> classunique_lock; (desde C++11) La claseunique_lockes un envoltorio de propiedad demutexde propósito general que permite el bloqueo diferido, intentos de bloqueo por tiempo limitado, bloqueo recursivo, transferenc...