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std::sig_atomic_t

STD：：SIG[医]原子[医]T型

Defined in header ​​
typedef /* unspecified */ sig_atomic_t;​​

一种整数类型，即使在信号产生异步中断的情况下也可以作为原子实体访问。

注记

直到C++11，它引入了std::atomic和std::atomic_signal_fence，在信号处理程序中，严格一致的程序所能做的唯一事情就是将一个值分配给volatile static std::sig_atomic_t变量并迅速返回。

另见

signalsets a signal handler for particular signal (function)

c SIG文件[医]原子[医]T型

原子[医]信号[医]在同一线程中执行的线程和信号处理程序之间的Fence%28C++11%29栅栏%28功能%29

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