#!/bin/sh

### BEGIN INIT INFO
# Provides:          php-fpm
# Required-Start:    $remote_fs $network
# Required-Stop:     $remote_fs $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts php-fpm
# Description:       starts the PHP FastCGI Process Manager daemon
### END INIT INFO

if [ -f /proc/user_beancounters ]; then
ulimit -s 256
fi

if [ ! -d /var/run/php-fpm ]; then
    mkdir -p /var/run/php-fpm
    chmod 755 /var/run/php-fpm
    touch /var/run/php-fpm/php-fpm.pid
    chown nginx:nginx /var/run/php-fpm
    chown root:root /var/run/php-fpm/php-fpm.pid
    chmod 1755 /var/run/php-fpm
    chmod 0644 /var/run/php-fpm/php-fpm.pid
fi

prefix=/usr/local
exec_prefix=${prefix}

php_fpm_BIN=${prefix}/sbin/php-fpm
php_fpm_CONF=${prefix}/etc/php-fpm.conf
php_fpm_PID=/var/run/php-fpm/php-fpm.pid

php_opts="--fpm-config $php_fpm_CONF --pid $php_fpm_PID"

wait_for_pid () {
        try=0

        while test $try -lt 35 ; do

                case "$1" in
                        'created')
                        if [ -f "$2" ] ; then
                                try=''
                                break
                        fi
                        ;;

                        'removed')
                        if [ ! -f "$2" ] ; then
                                try=''
                                break
                        fi
                        ;;
                esac

                echo -n .
                try=`expr $try + 1`
                sleep 1

        done

}

case "$1" in
        start)
                echo -n "Starting php-fpm "

                $php_fpm_BIN --daemonize $php_opts

                if [ "$?" != 0 ] ; then
                        echo " failed"
                        exit 1
                fi

                wait_for_pid created $php_fpm_PID

                if [ -n "$try" ] ; then
                        echo " failed"
                        exit 1
                else
                        echo " done"
                fi
        ;;

        stop)
                echo -n "Gracefully shutting down php-fpm "

                if [ ! -r $php_fpm_PID ] ; then
                        echo "warning, no pid file found - php-fpm is not running ?"
                        exit 1
                fi

                kill -QUIT `cat $php_fpm_PID`

                wait_for_pid removed $php_fpm_PID

                if [ -n "$try" ] ; then
                        echo " failed. Use force-quit"
                        exit 1
                else
                        echo " done"
                fi
        ;;

        status)
                if [ ! -r $php_fpm_PID ] ; then
                        echo "php-fpm is stopped"
                        exit 0
                fi

                PID=`cat $php_fpm_PID`
                if ps -p $PID | grep -q $PID; then
                        echo "php-fpm (pid $PID) is running..."
                else
                        echo "php-fpm dead but pid file exists"
                fi
        ;;

        force-quit)
                echo -n "Terminating php-fpm "

                if [ ! -r $php_fpm_PID ] ; then
                        echo "warning, no pid file found - php-fpm is not running ?"
                        exit 1
                fi

                kill -TERM `cat $php_fpm_PID`

                wait_for_pid removed $php_fpm_PID

                if [ -n "$try" ] ; then
                        echo " failed"
                        exit 1
                else
                        echo " done"
                fi
        ;;

        restart)
                $0 stop
                $0 start
        ;;

        reload)

                echo -n "Reload service php-fpm "

                if [ ! -r $php_fpm_PID ] ; then
                        echo "warning, no pid file found - php-fpm is not running ?"
                        exit 1
                fi

                kill -USR2 `cat $php_fpm_PID`

                echo " done"
        ;;

        configtest)
                $php_fpm_BIN -t
        ;;
        *)
                echo "Usage: $0 {start|stop|force-quit|restart|reload|status|configtest}"
                exit 1
        ;;

esac