Unix::Process - Perl extension to get pid info from (/bin/ps).

Unix-Process documentation Contained in the Unix-Process distribution.

Index

Code Index:

NAME

Top

Unix::Process - Perl extension to get pid info from (/bin/ps).

SYNOPSIS

Top

  use Unix::Process;

    my $vsz = Unix::Process->vsz($$);
    my $pid = Unix::Process->pid;

DESCRIPTION

Top

All fields from the ps command can be fetched by calling a function of their name (see SYNOPSIS). If the pid is not given as an argument to the function, $$ (cur pid) is assumed.

This module is really just a giant AUTOLOAD to interact with the /bin/ps command. I suppose I could be talked into doing something real with it some day.

You can manually set the $Unix::Process::PS_PROGRAM = "/opt/bin/ps" by hand, or you can set $ENV{PS_PATH} = "/usr/local/bin/ps", but you must somehow instruct Unix::Process on the location of ps. Otherwise, it will guess "/bin/ps".

AUTHOR

Top

Paul Miller <jettero@cpan.org>

I am using this software in my own projects... If you find bugs, please please please let me know. :) Actually, let me know if you find it handy at all. Half the fun of releasing this stuff is knowing that people use it.

COPYRIGHT

Top

Copyright (c) 2007-2009 Paul Miller -- LGPL

SEE ALSO

Top

perl(1), ps

Unix-Process documentation Contained in the Unix-Process distribution. 
package Unix::Process;

use strict;
use warnings;
use Carp;
use IPC::System::Simple qw(capturex);

our $VERSION    = '1.3101';
our $PS_PROGRAM = $ENV{PS_PATH} || '/bin/ps';
our $AUTOLOAD;

1;

sub AUTOLOAD {
    die "unprocessable garbage: $AUTOLOAD" unless $AUTOLOAD =~ m/::(\w+)$/;
    my $sub = $1;

    my $f = sub {
        my $this = shift;
        my $pid  = shift; $pid = $$ unless $pid and int($pid);
        my $result = eval { capturex($PS_PROGRAM, '-o', $sub, '-p', $pid) };

        croak $@ if $@;

        return $1 if $result =~ m/[\r\n]\s*(.+?)\s*[\r\n]/ms;
        return;
    };

    {
        no strict 'refs';
        *{$AUTOLOAD} = $f;
    }
    goto &$f;
}

__END__
# Below is stub documentation for your module. You better edit it!