#!/sbin/sh

#

# CDDL HEADER START

#

# The contents of this file are subject to the terms of the

# Common Development and Distribution License (the "License").

# You may not use this file except in compliance with the License.

#

# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

# or http://www.opensolaris.org/os/licensing.

# See the License for the specific language governing permissions

# and limitations under the License.

#

# When distributing Covered Code, include this CDDL HEADER in each

# file and include the License file at usr/src/OPENSOLARIS.LICENSE.

# If applicable, add the following below this CDDL HEADER, with the

# fields enclosed by brackets "[]" replaced with your own identifying

# information: Portions Copyright [yyyy] [name of copyright owner]

#

# CDDL HEADER END

#

# Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.

#

. /lib/svc/share/smf_include.sh

# SMF_FMRI is the name of the target service. This allows multiple instances 

# to use the same script.

if [ -z $SMF_FMRI ]; then

        echo "SMF framework variables are not initialized."

        exit $SMF_EXIT_ERR

fi

getproparg() {

	val=`svcprop -p $1 $SMF_FMRI`

	[ -n "$val" ] && echo $val

}

MYSQLCNF=`getproparg mysql/cnf`

MYSQLBIN=`getproparg mysql/bin`

MYSQLDATA=`getproparg mysql/data`

STARTTIMEOUT=180

if [ -z ${MYSQLCNF} ]; then

        echo "mysql/cnf property not set"

        exit $SMF_EXIT_ERR_CONFIG

fi

if [ -z ${MYSQLBIN} ]; then

        echo "mysql/bin property not set"

        exit $SMF_EXIT_ERR_CONFIG

fi

if [ -z ${MYSQLDATA} ]; then

	echo "mysql/data property not set"

	exit $SMF_EXIT_ERR_CONFIG

fi

if [ ! -d ${MYSQLDATA} ]; then

	echo "mysql/data directory ${MYSQLDATA} is not a valid MySQL data directory"

	exit $SMF_EXIT_ERR_CONFIG

fi

if [ ! -d ${MYSQLDATA}/mysql ]; then

	echo ${MYSQLBIN}/mysql_install_db --user=mysql --datadir=${MYSQLDATA} --defaults-file=${MYSQLCNF} 

	${MYSQLBIN}/mysql_install_db --user=mysql --datadir=${MYSQLDATA} --defaults-file=${MYSQLCNF} 

fi

getpidfile() {

 ret=$(${MYSQLBIN}/my_print_defaults --defaults-file=${MYSQLCNF} \

 mysqld | grep '^--pid-file=' | cut -d= -f2- | tail -1)

 [ -z "$ret" ] && ret="${MYSQLDATA}/$(/usr/bin/uname -n).pid"

 echo $ret

}

getsockfile() {

 ret=$(${MYSQLBIN}/my_print_defaults --defaults-file=${MYSQLCNF} \

 mysqld | grep '^--socket=' | cut -d= -f2- | tail -1)

 [ -z "$ret" ] && ret="/tmp/mysql.sock"

 echo $ret

}

PIDFILE=$(getpidfile)

SOCKFILE=$(getsockfile)

# ping function which return success when mysqld starts accepting connections

# or return failure in case of timeout after $STARTTIMEOUT seconds.

# using this function in mysql_start(), method waits/blocks to mysqld is really ready,

# which might take some time in case of recovery.

mysql_pinger() {    

    mysqld_safe_pid=$1

    timer=$STARTTIMEOUT

    ret=0

    while [ $timer -gt 0 ]; do

        sleep 1

        ${MYSQLBIN}/mysqladmin --no-defaults --socket=${SOCKFILE} --user=UNKNOWN_MYSQL_USER ping >/dev/null 2>&1 && break

	timer=$(expr $timer - 1)

	# Check if mysqld_safe is still alive, if not there is no hope

	if ! kill -0 $mysqld_safe_pid >/dev/null 2>&1 ; then

	    ret=1

	    break

	fi

    done

    # Did we timeout?

    if [ $timer = 0 ]; then

	echo "MySQL Database start up timeout after ${STARTTIMEOUT}s"

	ret=1

    fi

    return $ret

}

# refresh method for this service is not defined because mysqld by itself

# cannot accept a HUP signal to reload the configuration file my.cnf

mysql_start() 	{

	echo ${MYSQLBIN}/mysqld_safe --defaults-file=${MYSQLCNF} --user=mysql --datadir=${MYSQLDATA} --pid-file=${PIDFILE}

	${MYSQLBIN}/mysqld_safe --defaults-file=${MYSQLCNF} --user=mysql --datadir=${MYSQLDATA} --pid-file=${PIDFILE} > /dev/null &

	if mysql_pinger $! ; then

            echo "Starting service MySQL"

        else

            echo "Failed to start service MySQL"

            exit $SMF_EXIT_ERR

        fi

}

case "$1" in

'start')

	mysql_start 

	;;

*)

	echo "Usage: $0 start"

	exit 1

	;;

esac

exit $SMF_EXIT_OK