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#!/bin/sh
eval 'if [ -x /usr/local/cpanel/3rdparty/bin/perl ]; then exec /usr/local/cpanel/3rdparty/bin/perl -x -- $0 ${1+"$@"}; else exec /usr/bin/perl -x $0 ${1+"$@"}; fi;'
  if 0;

#!/usr/bin/perl
# cpanel - scripts/pkgacct-wrapper       Copyright(c) 2014 cPanel, Inc.
#                                                           All Rights Reserved.
# copyright@cpanel.net                                         http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited

package main;

use strict;

our $VERSION = '1.4';

if ( @ARGV && grep( m{version}, @ARGV ) ) {
    print "pkgacct-wrapper VERSION $VERSION\n";
    exit(0);
}

if ( Cpanel::IONice::ionice( 'best-effort', 3 ) ) {
    print "[pkgacct-wrapper] Setting I/O priority to reduce system load: " . Cpanel::IONice::get_ionice() . "\n";
}

if ( setpriority( 0, 0, 18 ) ) {
    print "[pkgacct-wrapper] Setting cpu priority to reduce system load: 18\n";
}

my $cpunum = Cpanel::Cpu::get_physical_cpu_count();

if ( -x '/usr/local/cpanel/bin/cpuwatch' ) {
    print "[pkgacct-wrapper] Using cpuwatch\n";
    exec '/usr/local/cpanel/bin/cpuwatch', "$cpunum.0", @ARGV;
}
else {
    exec @ARGV;
}

package Cpanel::IONice;

# cpanel - Cpanel/IONice.pm                   Copyright(c)     2011 cPanel, Inc.
#                                                           All rights Reserved.
# copyright@cpanel.net                                         http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited
#
my $ionice = '/usr/bin/ionice';

sub ionice {
    my ( $class, $class_data ) = @_;

    my %class_map = ( 'keep' => 0, 'idle' => 3, 'best-effort' => 2, 'real time' => 1 );

    $class = $class_map{$class} if $class !~ /^[0-3]$/;

    if ( $class !~ /^[0-3]$/ ) {
        warn("ionice: class must be number from 0-3");
        return;
    }
    if ( $class_data !~ /^[0-7]$/ ) {
        warn("ionice: class_data must be number from 0-7");
        return;
    }
    if ( -x $ionice ) {
        undef $class if $> != 0;

        # If $class is 0 we explictly do not pass a class.
        system( $ionice, ( $class ? ( '-c', $class ) : () ), '-n', $class_data, '-p', $$ );
        return ( ( $? >> 8 ) == 0 ) ? 1 : 0;
    }
    else {

        # ionice is not installed, normal case for BSD.
        return;
    }
}

sub get_ionice {
    if ( -x $ionice ) {
        my $ionice_current = `$ionice -p $$`;
        chomp($ionice_current);
        return $ionice_current;
    }
    else {

        # ionice not installed, normal case for BSD.
        # Don't fake a value, undef tells us this is unsupported.
        return;
    }
}

1;

package Cpanel::Cpu;

# cpanel - Cpanel/Cpu.pm                          Copyright(c) 2012 cPanel, Inc.
#                                                           All rights Reserved.
# copyright@cpanel.net                                         http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited

my $physical_cpu_count_cache;

sub get_physical_cpu_count {
    return $physical_cpu_count_cache if defined $physical_cpu_count_cache;

    my $cpunum = 1;
    if ( open my $cpuinfo, '<', CPUINFO() ) {
        while ( my $line = readline $cpuinfo ) {
            if ( $line =~ m/^processor\s*:\s*(\d+)/i ) {
                $cpunum = $1;
            }
        }
        close $cpuinfo;
        $cpunum++;
    }

    return $physical_cpu_count_cache = $cpunum;
}

sub CPUINFO { return '/proc/cpuinfo'; }

1;