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std::unique_lock<Mutex>::swap

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std::unique_lock
 
void swap( unique_lock& other ) noexcept;
 (since C++11)

交换锁对象的内部状态。

内容

[edit] 参数

other - 要与之交换状态的锁

[edit] 返回值

(none)

[edit] 示例

运行此代码
#include <iostream>
#include <mutex>
 
int main()
{
    std::mutex mtx1;
    std::unique_lock<std::mutex> guard1(mtx1);
    std::unique_lock<std::mutex> guard2;
    guard2.swap(guard1);
 
    if (!guard1 && guard2)
        std::cout << "swapped success\n";
 
    return 0;
}

输出

swapped success

[edit] 参见

(C++11)
 特化 std::swap 算法
(函数模板) [edit]
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