Hi,

Can pipes time out? I have long-running processes which communicate with a parent process using a pipe. If the process does not write to the pipe for approx. 12 hours, the next write triggers a SIG{'PIPE'} signal. The pipe is still intact, because other writes to the pipe after this SIG{'PIPE'} do not trigger the signal anymore. It only appears once after a long period of no writes to the pipe.

I am creating the pipe using socketpair followed by a fork: 
socketpair($child, $parent, AF_UNIX, SOCK_STREAM, PF_UNSPEC);

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I can simply 'IGNORE' the signal, but still I am curious why this is happening and if I can prevent it. The platform is Linux.

Thanks!

In reply to SIG{'PIPE'} and pipe timeout by Marcello

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