Linux::Pid man page on Mageia

Linux::Pid man page on Mageia

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Pid(3)		      User Contributed Perl Documentation		Pid(3)

NAME
       Linux::Pid - Get the native PID and the PPID on Linux

SYNOPSIS
	   use Linux::Pid;
	   print Linux::Pid::getpid(), "\t", Linux::Pid::getppid(), "\n";

	   use Linux::Pid qw(getpid getppid);
	   print getpid(), "\t", getppid(), "\n";

DESCRIPTION
       Why should one use a module to get the PID and the PPID of a process
       where there are the $$ variable and the "getppid()" builtin ? (Not
       mentioning the equivalent "POSIX::getpid()" and "POSIX::getppid()"
       functions.)

       In fact, this is useful on Linux, with multithreaded programs. Linux' C
       library, using the linux thread model, returns different values of the
       PID and the PPID from different threads. (Other thread models such as
       NPTL don't have the same behaviour). This module forces perl to call
       the underlying C functions "getpid()" and "getppid()".

AUTHOR
       Copyright (c) 2002-2007 Rafael Garcia-Suarez. All rights reserved. This
       program is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

perl v5.18.1			  2007-06-12				Pid(3)

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