#!/bin/sh
#
# Copyright 2012  Samsung Electronics Co., Ltd
#
# Licensed under the Flora License, Version 1.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.tizenopensource.org/license
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

launch_provider()
{
	RETRY_COUNT=0
	while [ ! -f "/tmp/.stop.provider" ]; do
		# PROVIDER_HEAP_MONITOR_START=false
		# PROVIDER_DISABLE_CALL_OPTION=false
		# PROVIDER_METHOD="shm", "pixmap", "file" (default = "file")
		BUFMGR_LOCK_TYPE="once" BUFMGR_MAP_CACHE="true" /usr/bin/data-provider-master
		let RETRY_COUNT=$RETRY_COUNT+1
		if [ $RETRY_COUNT -gt 5 ]; then
			echo "EXCEED THE MAXIMUM RETRY COUNT: $RETRY_COUNT (max 5)"
			break;
		fi
	done
	rm /tmp/.stop.provider
}

start ()
{
	OLDPID=`ps ax | grep /usr/bin/data-provider-master | grep -v grep | awk '{print $1}'`
	if [ x"$OLDPID" != x"" ]; then
		echo $OLDPID is already running.
		exit 0
	fi

	rm /tmp/.stop.provider
	launch_provider &
}

stop ()
{
	TMP=`which ps`
	if [ $? -ne 0 ]; then
		echo "'ps' is not exists"
		exit 0
	fi

	TMP=`which grep`
	if [ $? -ne 0 ]; then
		echo "'grep' is not exists"
		exit 0
	fi

	TMP=`which awk`
	if [ $? -ne 0 ]; then
		echo "'awk' is not exists"
		exit 0
	fi

	if [ ! -f "/usr/bin/data-provider-master" ]; then
		echo "Data provider master is not installed correctly";
		exit 0;
	fi

	touch /tmp/.stop.provider
	BIN_INODE=`stat -Lc "%i" /usr/bin/data-provider-master`

	PID=`ps ax | grep 'data-provider-master' | awk '{print $1}'`
	for I in $PID;
	do
		if [ ! -f "/proc/$I/exe" ]; then
			continue;
		fi

		INODE=`stat -Lc "%i" /proc/$I/exe 2>/dev/null`
		if [ x"$BIN_INODE" == x"$INODE" ]; then
			echo "Send TERM to $I"
			kill $I # Try to terminate a master which is launched already
			break
		fi
	done
}

case "$1" in
	start|"") start;;
	stop) stop;;
	restart) stop; start;;
esac

# End of a file