标准库头文件 <condition_variable>
此头文件是线程支持库的一部分。
类 | |
(C++11) |
提供与 std::unique_lock 关联的条件变量 (类) |
(C++11) |
提供与任何锁类型关联的条件变量 (类) |
(C++11) |
列出条件变量上定时等待的可能结果 (枚举) |
函数 | |
(C++11) |
安排到在此线程完全结束时对 notify_all 的调用 (函数) |
概要
namespace std { class condition_variable; class condition_variable_any; void notify_all_at_thread_exit(condition_variable& cond, unique_lock<mutex> lk); enum class cv_status { no_timeout, timeout }; }
类 std::condition_variable
namespace std { class condition_variable { public: condition_variable(); ~condition_variable(); condition_variable(const condition_variable&) = delete; condition_variable& operator=(const condition_variable&) = delete; void notify_one() noexcept; void notify_all() noexcept; void wait(unique_lock<mutex>& lock); template<class Pred> void wait(unique_lock<mutex>& lock, Pred pred); template<class Clock, class Duration> cv_status wait_until(unique_lock<mutex>& lock, const chrono::time_point<Clock, Duration>& abs_time); template<class Clock, class Duration, class Pred> bool wait_until(unique_lock<mutex>& lock, const chrono::time_point<Clock, Duration>& abs_time, Pred pred); template<class Rep, class Period> cv_status wait_for(unique_lock<mutex>& lock, const chrono::duration<Rep, Period>& rel_time); template<class Rep, class Period, class Pred> bool wait_for(unique_lock<mutex>& lock, const chrono::duration<Rep, Period>& rel_time, Pred pred); using native_handle_type = /* 由实现定义 */; native_handle_type native_handle(); }; }
类 std::condition_variable_any
namespace std { class condition_variable_any { public: condition_variable_any(); ~condition_variable_any(); condition_variable_any(const condition_variable_any&) = delete; condition_variable_any& operator=(const condition_variable_any&) = delete; void notify_one() noexcept; void notify_all() noexcept; // 不可中断等待 template<class Lock> void wait(Lock& lock); template<class Lock, class Pred> void wait(Lock& lock, Pred pred); template<class Lock, class Clock, class Duration> cv_status wait_until(Lock& lock, const chrono::time_point<Clock, Duration>& abs_time); template<class Lock, class Clock, class Duration, class Pred> bool wait_until(Lock& lock, const chrono::time_point<Clock, Duration>& abs_time, Pred pred); template<class Lock, class Rep, class Period> cv_status wait_for(Lock& lock, const chrono::duration<Rep, Period>& rel_time); template<class Lock, class Rep, class Period, class Pred> bool wait_for(Lock& lock, const chrono::duration<Rep, Period>& rel_time, Pred pred); // 可中断等待 template<class Lock, class Pred> bool wait(Lock& lock, stop_token stoken, Pred pred); template<class Lock, class Clock, class Duration, class Pred> bool wait_until(Lock& lock, stop_token stoken, const chrono::time_point<Clock, Duration>& abs_time, Pred pred); template<class Lock, class Rep, class Period, class Pred> bool wait_for(Lock& lock, stop_token stoken, const chrono::duration<Rep, Period>& rel_time, Pred pred); }; }