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Re: TheIDE zombie problem [message #7456 is a reply to message #7454]

Sat, 30 December 2006 11:56

mirek
Messages: 14255
Registered: November 2005

Ultimate Member

lundman wrote on Sat, 30 December 2006 05:04

Well, you can start children you don't need to wait on, if you really do not need to know when they die. Just start a new process group (setsid()) before calling.

if (!fork()) {
  // as child
  close(fileno(STDIN));
  close(fileno(STDOUT));
  close(fileno(STDERR));
  setsid();
  execve(argv[0], argv, env);
  /* not reached */
}

Iwould assume that's fine for "execute", but if you want to run it in debugged, you may need/want the SIGCHLD to know when it dies? Or if you are using stdin/out, deal/ignore SIGPIPE.

I can certainly fix it, so it leaves no zombies, if that is all that is needed.

Well I am afraid that above solution is not correct - you have to wait for pid returned from fork in the parent process.

Mirek

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