subconverter: update init

package/ctcgfw/subconverter/files/subconverter.init

@@ -4,12 +4,49 @@ START=99
 USE_PROCD=1
 
 BIN=/etc/subconverter/subconverter
+PID=""
+
+getPid(){
+        ps | grep subconverter > /tmp/_subconverter_pid
+        sed -i '/grep/d' /tmp/_subconverter_pid
+	sed -i '/bin\/sh/d' /tmp/_subconverter_pid
+        sed -i "s/^[ \s]\{1,\}//g;s/[ \s]\{1,\}$//g" /tmp/_subconverter_pid
+	local pid=$(cat /tmp/_subconverter_pid| cut -d ' ' -f1)
+	PID=$pid
+	#echo PID is $pid === $PID
+	rm -rf /tmp/_subconverter_pid
+}
 
 start_service() {
-	[ ! -e /etc/subconverter/subconverter ] && ln -fs /usr/bin/subconverter /etc/subconverter/subconverter
+	getPid
+	local pid=$PID
+	if [ ! -z "$pid" ]; then
+		echo "Subconverter has already run, PID is "$pid
+		return 0
+	fi
+	[ ! -e /etc/subconverter/subconverter ] && cp /usr/bin/subconverter /etc/subconverter/subconverter
 	procd_open_instance
 	procd_set_param command $BIN
 	procd_set_param respawn
 	procd_set_param stderr 1
 	procd_close_instance
+	echo Subconverter started.
+}
+
+stop_service() {
+	getPid
+	local pid=$PID
+	if [ ! -z "$pid" ]; then
+		echo Found subconverter process, which PID is $pid
+		kill $pid
+		echo Subconverter process has been terminated.
+	else
+		echo No subconverter process found.
+		return 0
+	fi
+}
+
+reload_service() {
+	stop
+	start
 }