Writing to a closed pipe should trigger a SIGPIPE but it requires to write something to it first. A child that died for some reason should also trigger a SIGCHLD – perhaps you could detect that and take it into account prior to sending more data? I would write a wrapper that replaces print with a-priori checks (i.e. SIGCHLD sets a flag asynchonously) and post-checks (SIGPIPE)... at least under Linux. Don't know if theses assumptions are valid under Windows.

In reply to Re: Detect whether a writeable filehandle has closed? by Perlbotics
in thread Detect whether a writeable filehandle has closed? by jdporter

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