IO::Select is just a thin wrapper around select. accept and select are just thin wrapper around the system calls with the same name. They should return error EINTR when interrupted by a signal (which will only happen if you have a signal handler defined).

In reply to Re^3: waking from select, or IO::Pipe in same process? by ikegami
in thread waking from select, or IO::Pipe in same process? by checker

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