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/usr/share/memcached/scripts/start-memcached

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#!/usr/bin/perl -w

# start-memcached
# 2003/2004 - Jay Bonci <jaybonci@debian.org>
# This script handles the parsing of the /etc/memcached.conf file
# and was originally created for the Debian distribution.
# Anyone may use this little script under the same terms as
# memcached itself.

use POSIX qw(setsid);
use strict;

if($> != 0 and $< != 0)
{
    print STDERR "Only root wants to run start-memcached.\n";
    exit;
}

my $params; my $etchandle; my $etcfile = "/etc/memcached.conf";

# This script assumes that memcached is located at /usr/bin/memcached, and
# that the pidfile is writable at /var/run/memcached.pid

my $memcached = "/usr/bin/memcached";
my $pidfile = "/var/run/memcached.pid";

if (scalar(@ARGV) == 2) {
    $etcfile = shift(@ARGV);
    $pidfile = shift(@ARGV);
}

# If we don't get a valid logfile parameter in the /etc/memcached.conf file,
# we'll just throw away all of our in-daemon output. We need to re-tie it so
# that non-bash shells will not hang on logout. Thanks to Michael Renner for
# the tip
my $fd_reopened = "/dev/null";

sub handle_logfile
{
    my ($logfile) = @_;
    $fd_reopened = $logfile;
}

sub reopen_logfile
{
    my ($logfile) = @_;

open *STDERR, ">>$logfile";
    open *STDOUT, ">>$logfile";
    open *STDIN, ">>/dev/null";
    $fd_reopened = $logfile;
}

# This is set up in place here to support other non -[a-z] directives

my $conf_directives = {
    "logfile" => \&handle_logfile,
};

if(open $etchandle, $etcfile)
{
    foreach my $line (<$etchandle>)
    {
        $line ||= "";
        $line =~ s/(?<!\\)\#[^\#]*//g;
        $line =~ s/\s+$//g;
        $line =~ s/^\s+//g;
        next unless $line;
        next if $line =~ /^\-[dh]/;

if($line =~ /^[^\-]/)
        {
            my ($directive, $arg) = $line =~ /^(.*?)\s+(.*)/;
            $conf_directives->{$directive}->($arg);
            next;
        }

push @$params, $line;
    }

}else{
    $params = [];
}

push @$params, "-u root" unless(grep "-u", @$params);
$params = join " ", @$params;

if(-e $pidfile)
{
    open PIDHANDLE, "$pidfile";
    my $localpid = <PIDHANDLE>;
    close PIDHANDLE;

chomp $localpid;
    if(-d "/proc/$localpid")
    {
        print STDERR "memcached is already running.\n";
        exit;
    }else{
        unlink $pidfile;
    }

}

my $pid = fork();

if($pid == 0)
{
    # setsid makes us the session leader
    setsid();
    reopen_logfile($fd_reopened);
    # must fork again now that tty is closed
    $pid = fork();
    if ($pid) {
      if(open PIDHANDLE,">$pidfile")
      {
          print PIDHANDLE $pid;
          close PIDHANDLE;
      }else{

print STDERR "Can't write pidfile to $pidfile.\n";
      }
      exit(0);
    }
    exec "$memcached $params";
    exit(0);

}

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Name	Size	Perms	Modified	Actions
damemtop	15.52 KB	lrwxr-xr-x	2024-04-01 06:55:32	Edit Download recursive recursive
damemtop.yaml	294 B	lrw-r--r--	2024-04-01 06:55:32	Edit Download recursive recursive
memcached-tool	6.85 KB	lrwxr-xr-x	2024-04-01 06:55:32	Edit Download recursive recursive
start-memcached	2.71 KB	lrwxr-xr-x	2024-04-01 06:55:32	Edit Download recursive recursive
systemd-memcached-wrapper	1.39 KB	lrwxr-xr-x	2024-04-01 06:55:32	Edit Download recursive recursive

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