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The reaper module provides a $SIG{CHLD} handler that can be installed
globally as well as locally. It also supports chaining of signal handlers,
meaning it will not just replace an existing $SIG{CHLD} handler. It still
requires applications to do the right thing in using this module and not
installing their own versions. At least it provides a consistent
implementation that can be shared between various modules.
WWW: https://metacpan.org/release/Reaper
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