#!/bin/sh

#

#     Copyright (C) 2011 Carsten Schoene, Linux Administrator Networks 

#          

#     This library is free software; you can redistribute it and/or modify it

#     under the terms of the GNU Lesser General Public License as published by

#     the Free Software Foundation; either version 2.1 of the License, or (at

#     your option) any later version.

#                 

#     This library is distributed in the hope that it will be useful, but

#     WITHOUT ANY WARRANTY; without even the implied warranty of

#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

#     Lesser General Public License for more details.

#      

#     You should have received a copy of the GNU Lesser General Public

#     License along with this library; if not, write to the Free Software

#     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,

#     USA.

#

# /etc/init.d/mod_gearman_worker

#   and its symbolic link

# /(usr/)sbin/rcmod_gearman_worker

#

#

### BEGIN INIT INFO

# Provides:          mod_gearman_worker

# Required-Start:    $syslog $remote_fs

# Should-Start:      $time

# Required-Stop:     $syslog $remote_fs

# Should-Stop:       $null

# Default-Start:     3 5

# Default-Stop:      0 1 2 6

# Short-Description: mod_gearman_worker daemon

# Description:       Start mod_gearman_worker

### END INIT INFO

# 

​

# Check for missing binaries (stale symlinks should not happen)

# Note: Special treatment of stop for LSB conformance

mod_gearman_worker_BIN=/usr/bin/mod_gearman_worker

MOD_GM_PIDFILE=/var/run/mod_gearman/mod_gearman_worker.pid

MOD_GM_CONFIG=/etc/mod_gearman/mod_gearman_worker.conf

test -x $mod_gearman_worker_BIN || { echo "$mod_gearman_worker_BIN not installed"; 

    if [ "$1" = "stop" ]; then exit 0;

    else exit 5; fi; }

​

# Check for existence of needed config file and read it

mod_gearman_worker_MOD_GM_CONFIG=/etc/sysconfig/mod_gearman_worker

test -r $mod_gearman_worker_MOD_GM_CONFIG || { echo "$mod_gearman_worker_MOD_GM_CONFIG not existing";

    if [ "$1" = "stop" ]; then exit 0;

    else exit 6; fi; }

​

# Read config   

. $mod_gearman_worker_MOD_GM_CONFIG

​

# Source LSB init functions

# providing start_daemon, killproc, pidofproc, 

# log_success_msg, log_failure_msg and log_warning_msg.

# This is currently not used by UnitedLinux based distributions and

# not needed for init scripts for UnitedLinux only. If it is used,

# the functions from rc.status should not be sourced or used.

#. /lib/lsb/init-functions

​

# Shell functions sourced from /etc/rc.status:

#      rc_check         check and set local and overall rc status

#      rc_status        check and set local and overall rc status

#      rc_status -v     be verbose in local rc status and clear it afterwards

#      rc_status -v -r  ditto and clear both the local and overall rc status

#      rc_status -s     display "skipped" and exit with status 3

#      rc_status -u     display "unused" and exit with status 3

#      rc_failed        set local and overall rc status to failed

#      rc_failed <num>  set local and overall rc status to <num>

#      rc_reset         clear both the local and overall rc status

#      rc_exit          exit appropriate to overall rc status

#      rc_active        checks whether a service is activated by symlinks

. /etc/rc.status

​

# Reset status of this service

rc_reset

​

# Return values acc. to LSB for all commands but status:

# 0   - success

# 1       - generic or unspecified error

# 2       - invalid or excess argument(s)

# 3       - unimplemented feature (e.g. "reload")

# 4       - user had insufficient privileges

# 5       - program is not installed

# 6       - program is not configured

# 7       - program is not running

# 8--199  - reserved (8--99 LSB, 100--149 distrib, 150--199 appl)

# 

# Note that starting an already running service, stopping

# or restarting a not-running service as well as the restart

# with force-reload (in case signaling is not supported) are

# considered a success.

​

case "$1" in

    start)

    echo -n "Starting mod_gearman_worker "

    ## Start daemon with startproc(8). If this fails

    ## the return value is set appropriately by startproc.

    /sbin/startproc -u ${MOD_GM_USERID} $mod_gearman_worker_BIN -d --config=${MOD_GM_CONFIG} --pidfile=${MOD_GM_PIDFILE}

​

    # Remember status and be verbose

    rc_status -v

    ;;

    stop)

    echo -n "Shutting down mod_gearman_worker "

    ## Stop daemon with killproc(8) and if this fails

    ## killproc sets the return value according to LSB.

​

    /sbin/killproc $mod_gearman_worker_BIN -p ${MOD_GM_PIDFILE}

​

    # Remember status and be verbose

    rc_status -v

    ;;

    try-restart|condrestart)

    ## Do a restart only if the service was active before.

    ## Note: try-restart is now part of LSB (as of 1.9).

    ## RH has a similar command named condrestart.

    if test "$1" = "condrestart"; then

        echo "${attn} Use try-restart ${done}(LSB)${attn} rather than condrestart ${warn}(RH)${norm}"

    fi

    $0 status

    if test $? = 0; then

        $0 restart

    else

        rc_reset    # Not running is not a failure.

    fi

    # Remember status and be quiet

    rc_status

    ;;

    restart)

    ## Stop the service and regardless of whether it was

    ## running or not, start it again.

    $0 stop

    $0 start

​

    # Remember status and be quiet

    rc_status

    ;;

    force-reload)

    ## Signal the daemon to reload its config. Most daemons

    ## do this on signal 1 (SIGHUP).

    ## If it does not support it, restart the service if it

    ## is running.

​

    echo -n "Reload service mod_gearman_worker "

    ## if it supports it:

    /sbin/killproc -HUP $mod_gearman_worker_BIN

    #touch /var/run/mod_gearman_worker.pid

    rc_status -v

​

    ## Otherwise:

    #$0 try-restart

    #rc_status

    ;;

    reload)

    ## Like force-reload, but if daemon does not support

    ## signaling, do nothing (!)

​

    # If it supports signaling:

    echo -n "Reload service mod_gearman_worker "

    /sbin/killproc -HUP $mod_gearman_worker_BIN

    #touch /var/run/mod_gearman_worker.pid

    rc_status -v

    ## Otherwise if it does not support reload:

    #rc_failed 3

    #rc_status -v

    ;;

    status)

    echo -n "Checking for service mod_gearman_worker "

    ## Check status with checkproc(8), if process is running

    ## checkproc will return with exit status 0.

​

    # Return value is slightly different for the status command:

    # 0 - service up and running

    # 1 - service dead, but /var/run/  pid  file exists

    # 2 - service dead, but /var/lock/ lock file exists

    # 3 - service not running (unused)

    # 4 - service status unknown :-(

    # 5--199 reserved (5--99 LSB, 100--149 distro, 150--199 appl.)

    # NOTE: checkproc returns LSB compliant status values.

    /sbin/checkproc $mod_gearman_worker_BIN

    # NOTE: rc_status knows that we called this init script with

    # "status" option and adapts its messages accordingly.

    rc_status -v

    ;;

    probe)

    ## Optional: Probe for the necessity of a reload, print out the

    ## argument to this init script which is required for a reload.

    ## Note: probe is not (yet) part of LSB (as of 1.9)

​

    test /etc/mod_gearman/mod_gearman_worker.conf -nt ${MOD_GM_PIDFILE} && echo reload

    ;;

    *)

    echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"

    exit 1

    ;;

esac

rc_exit

​