Computer System, Computer Science, Operating Systems.
whenever a signal of type k is received. Sending Signals 发送信号 Unix systems provide a number of mechanisms for sending signals to processes. All of the mechanisms rely on the notion of a process group. 内核通过更新目的进程上下文中某个状态来发送一个信号给目的进程。Unix系统基于进程组概念发送信号。 Process Groups 进程组 Every process belongs to