Give me some info about REAPER

Question

I a perl code have seen the REAPER has used as a signal handler for SIGCHLD signal .

$SIG{CHLD} = \&REAPER;

The function also not defined in the code . Can any one deeply explain the internal operation on the `REAPER` .

Thanks in advance.

Answer 1

• Read : PerlIPC-Perl interprocess communication (signals, fifos, pipes, safe subprocesses, sockets, and semaphores).

• Read: "Reaping Zombies" from Chapter 16.01 in "Perl Programming third Edition" by Larry Wall

Answer 2

    All Our perls have run
    Here but now they're hung
    Children don't fear the reaper
    Nor Do the wind, the sun or the rain
    We can be like they are

    Come on process, Don't fear the Reaper
    Baby take My file, Don't fear the Reaper
    We'll be able to crash, Don't fear the Reaper
    Baby it's your code

REAPER is just a placeholder name for code you have to write yourself. See perlipc for more details.