subconverter: rewrite init with upstream feedback

package/ctcgfw/subconverter/files/subconverter.init

@@ -3,50 +3,30 @@
 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
-}
+BIN="/usr/bin/subconverter"
+CONF="/etc/subconverter/pref.ini"
+LOG_FILE="/tmp/subconverter.log"
 
 start_service() {
-	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 $BIN
-	procd_set_param respawn
+	procd_set_param command "$BIN"
+	procd_append_param command -f "$CONF"
+	procd_append_param command -l "$LOG_FILE"
+	procd_set_param respawn ${respawn_threshold:-3600} ${respawn_timeout:-5} ${respawn_retry:-5}
+	procd_set_param limits core="unlimited"
+	procd_set_param stdout 1
 	procd_set_param stderr 1
 	procd_close_instance
-	echo Subconverter started.
+	logger -t Subconverter 'Starting Subconverter service'
 }
 
 stop_service() {
-	getPid
-	local pid=$PID
-	if [ ! -z "$pid" ]; then
-		echo Found subconverter process, which PID is $pid
-		kill $pid
-		echo Subconverter process has been terminated.
-	else
-		echo No subconverter process found.
-		return 0
-	fi
+	rm -f "$LOG_FILE"
+	logger -t Subconverter 'Shutting down Subconverter service'
 }
 
 reload_service() {
+	logger -t Subconverter 'Restarting Subconverter service'
 	stop
 	start
 }