标准库标头 <condition_variable> (C++11)
来自cppreference.com
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) |
安排当此线程完全结束时调用一次 notify_all (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);
};
}