线程-信号

时间：2009-04-17 来源：zhengwenwei_123

Each thread has its own signal mask, but the signal disposition is shared by all threads in the process. This means that individual threads can block signals, but when a thread modifies the action associated with a given signal, all threads share the action. Thus, if one thread chooses to ignore a given signal, another thread can undo that choice by restoring the default disposition or installing a signal handler for the signal.
你可以为每个线程设置它的掩码，但是由于signal disposition是共享的，也就是说你无法为一个线程安装自己的信号处理函数。

#include <signal.h>

int pthread_sigmask(int how, const sigset_t
*restrict set,
sigset_t *restrict oset);
Returns: 0 if OK, error number on failure

A thread can wait for one or more signals to occur by calling sigwait.

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