Signal Handling--ref

intSIGTSTP

TheSIGTSTPsignal is an interactive stop signal. UnlikeSIGSTOP,this signal can be handled and ignored.

Your program should handle this signal if you have a special need to leave files or system tables in a secure state when a process is stopped. For example,programs that turn off echoing should handleSIGTSTPso they can turn echoing back on before stopping.

This signal is generated when the user types the SUSP character (normallyC-z). For more information about terminal driver support,see section.

intSIGTTIN

A process cannot read from the the user's terminal while it is running as a background job. When any process in a background job tries to read from the terminal,all of the processes in the job are sent aSIGTTINsignal. The default action for this signal is to stop the process. For more information about how this interacts with the terminal driver,see section.

（编辑：网站开发网_马鞍山站长网）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!