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All the Perl that's Practical to Extract and Report

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  • IPC::Run [] does it by opening a pipe() to sync to the child, fork()ing, and marking it as close on exit with a fcntl(). Here are some snippets glued together from pieces of IPC::Run:

       ( $sync_reader_fd, $self->{SYNC_WRITER_FD} ) = _pipe ;
       $kid->{PID} = fork() ;
       croak "$! during fork" unless defined $kid->{PID} ;

       unless ( $kid->{PID} ) {
          eval {   
             open $s1, ">&=$self->{SYNC_WR