SHOW:
|
|
- or go back to the newest paste.
| 1 | #!/usr/bin/perl -w | |
| 2 | ||
| 3 | # start-memcached | |
| 4 | # 2003/2004 - Jay Bonci <[email protected]> | |
| 5 | # This script handles the parsing of the /etc/memcached.conf file | |
| 6 | # and was originally created for the Debian distribution. | |
| 7 | # Anyone may use this little script under the same terms as | |
| 8 | # memcached itself. | |
| 9 | ||
| 10 | use strict; | |
| 11 | ||
| 12 | if($> != 0 and $< != 0) | |
| 13 | { | |
| 14 | print STDERR "Only root wants to run start-memcached.\n"; | |
| 15 | exit; | |
| 16 | } | |
| 17 | ||
| 18 | my $params; my $etchandle; my $etcfile = "/etc/memcached.conf"; | |
| 19 | ||
| 20 | # This script assumes that memcached is located at /usr/bin/memcached, and | |
| 21 | # that the pidfile is writable at /var/run/memcached.pid | |
| 22 | ||
| 23 | my $memcached = "/usr/bin/memcached"; | |
| 24 | my $pidfile = "/var/run/memcached.pid"; | |
| 25 | ||
| 26 | if (scalar(@ARGV) == 2) { | |
| 27 | $etcfile = shift(@ARGV); | |
| 28 | $pidfile = shift(@ARGV); | |
| 29 | } | |
| 30 | ||
| 31 | # If we don't get a valid logfile parameter in the /etc/memcached.conf file, | |
| 32 | # we'll just throw away all of our in-daemon output. We need to re-tie it so | |
| 33 | # that non-bash shells will not hang on logout. Thanks to Michael Renner for | |
| 34 | # the tip | |
| 35 | my $fd_reopened = "/dev/null"; | |
| 36 | ||
| 37 | sub handle_logfile | |
| 38 | { | |
| 39 | my ($logfile) = @_; | |
| 40 | $fd_reopened = $logfile; | |
| 41 | } | |
| 42 | ||
| 43 | sub reopen_logfile | |
| 44 | { | |
| 45 | my ($logfile) = @_; | |
| 46 | ||
| 47 | open *STDERR, ">>$logfile"; | |
| 48 | open *STDOUT, ">>$logfile"; | |
| 49 | open *STDIN, ">>/dev/null"; | |
| 50 | $fd_reopened = $logfile; | |
| 51 | } | |
| 52 | ||
| 53 | # This is set up in place here to support other non -[a-z] directives | |
| 54 | ||
| 55 | my $conf_directives = { | |
| 56 | "logfile" => \&handle_logfile, | |
| 57 | }; | |
| 58 | ||
| 59 | if(open $etchandle, $etcfile) | |
| 60 | { | |
| 61 | foreach my $line (<$etchandle>) | |
| 62 | { | |
| 63 | $line ||= ""; | |
| 64 | $line =~ s/\#.*//g; | |
| 65 | $line =~ s/\s+$//g; | |
| 66 | $line =~ s/^\s+//g; | |
| 67 | next unless $line; | |
| 68 | next if $line =~ /^\-[dh]/; | |
| 69 | ||
| 70 | if($line =~ /^[^\-]/) | |
| 71 | { | |
| 72 | my ($directive, $arg) = $line =~ /^(.*?)\s+(.*)/; | |
| 73 | $conf_directives->{$directive}->($arg); | |
| 74 | next; | |
| 75 | } | |
| 76 | ||
| 77 | push @$params, $line; | |
| 78 | } | |
| 79 | ||
| 80 | }else{ | |
| 81 | $params = []; | |
| 82 | } | |
| 83 | ||
| 84 | push @$params, "-u root" unless(grep "-u", @$params); | |
| 85 | $params = join " ", @$params; | |
| 86 | ||
| 87 | if(-e $pidfile) | |
| 88 | { | |
| 89 | open PIDHANDLE, "$pidfile"; | |
| 90 | my $localpid = <PIDHANDLE>; | |
| 91 | close PIDHANDLE; | |
| 92 | ||
| 93 | chomp $localpid; | |
| 94 | if(-d "/proc/$localpid") | |
| 95 | { | |
| 96 | print STDERR "memcached is already running.\n"; | |
| 97 | exit; | |
| 98 | }else{ | |
| 99 | `rm -f $localpid`; | |
| 100 | } | |
| 101 | ||
| 102 | } | |
| 103 | ||
| 104 | my $pid = fork(); | |
| 105 | ||
| 106 | if($pid == 0) | |
| 107 | { | |
| 108 | reopen_logfile($fd_reopened); | |
| 109 | exec "$memcached $params"; | |
| 110 | exit(0); | |
| 111 | ||
| 112 | }else{ | |
| 113 | if(open PIDHANDLE,">$pidfile") | |
| 114 | { | |
| 115 | print PIDHANDLE $pid; | |
| 116 | close PIDHANDLE; | |
| 117 | }else{ | |
| 118 | ||
| 119 | print STDERR "Can't write pidfile to $pidfile.\n"; | |
| 120 | } | |
| 121 | } |
