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 returns different values of the PID and the PPID from different threads. This module forces perl to call the underlying C functions getpid() and getppid().

AUTHOR

Copyright (c) 2002 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.