php-fpm啓動腳本

[root@xxw fpm]# cat php-fpm

#! /bin/sh

php_fpm_BIN=/usr/local/php5/bin/php-cgi
php_fpm_CONF=/usr/local/php5/etc/php-fpm.conf
php_fpm_PID=/usr/local/php5/logs/php-fpm.pid

php_opts="--fpm-config $php_fpm_CONF"

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 --fpm $php_opts

                if [ "$?" != 0 ] ; then              #檢測命令執行結果返回是否爲0來判斷是否啓動
                        echo " failed"
                        exit 1
                fi

                wait_for_pid created $php_fpm_PID

                if [ -n "$try" ] ; then             #檢測進程號來判斷
                        echo " failed"
                        exit 1
                else
                        echo " done"
                fi
        ;;

        stop)
                echo -n "Shutting down php_fpm "

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

                kill -TERM `cat $php_fpm_PID`       #殺死進程號

                wait_for_pid removed $php_fpm_PID

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

        quit)
                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`   #執行kill -QUIT 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`     #重新加載選項

                echo " done"
        ;;

        logrotate)

                echo -n "Re-opening php-fpm log file "

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

                kill -USR1 `cat $php_fpm_PID`

                echo " done"
        ;;

        *)
                echo "Usage: $0 {start|stop|quit|restart|reload|logrotate}"
                exit 1
        ;;

esac