SIGSTOP和SIGTSTP有什么区别? [英] What is the difference between SIGSTOP and SIGTSTP?

问题描述

只想知道SIGSTOP和SIGTSTP信号之间的区别.

Just wondering about the difference between SIGSTOP and SIGTSTP signals.

推荐答案

两个信号都被设计为挂起一个进程，该进程最终将通过SIGCONT恢复.它们之间的主要区别是:

Both signals are designed to suspend a process which will be eventually resumed with SIGCONT. The main differences between them are:

• SIGSTOP是通过编程方式发送的信号(例如:kill -STOP pid)，而SIGTSTP(对于 sig nal- t erminal <用户也可以通过tty驱动程序(通常是 Control - Z )通过键盘输入 stop ).

• SIGSTOP is a signal sent programmatically (eg: kill -STOP pid ) while SIGTSTP (for signal - terminal stop) may also be sent through the tty driver by a user typing on a keyboard, usually Control-Z.

SIGSTOP不能忽略. SIGTSTP可能是.

SIGSTOP cannot be ignored. SIGTSTP might be.

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