Date: Mon, 17 Jan 2000 08:43:57 -0800 From: "Scott Hess" <scott@avantgo.com> To: <freebsd-questions@freebsd.org> Subject: Detecting when your parent process dies. Message-ID: <02f701bf610a$0c5fdec0$1e80000a@avantgo.com>
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Is there any way for an rfork() process to detect if it's parent process has died? I mean via some sort of asynchronous notification? I can detect death of a child process via SIGCHLD and wait()/wait4(). I can detect death of a fork()ed parent by opening a pipe before the fork, and having the child detect when the pipe gets closed. Unfortunately, I'm using rfork() such that file descriptors are shared, so the OS won't close the parent's file descriptors on premature termination. The best idea I've come up with thus far is to spin a manager process which creates the current parent process as a child, and then let that process watch for SIGCHLD. This seems a bit extreme (not to mention confusing, because it means that the "real" pid of the process isn't the first one of ten, it's the second one of ten...). Ideas? Thanks, scott To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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