From 23fbfbcf80b1c459ba96aba32fcdfd792d278e8a Mon Sep 17 00:00:00 2001
From: CN_SZTL <cnsztl@gmail.com>
Date: Sat, 19 Oct 2019 08:31:27 +0800
Subject: [PATCH] procd: allow usage of * as procd_running() instance parameter

---
 package/system/procd/Makefile       |  2 +-
 package/system/procd/files/procd.sh | 39 ++++++++++++++++++++++++++---
 2 files changed, 37 insertions(+), 4 deletions(-)

diff --git a/package/system/procd/Makefile b/package/system/procd/Makefile
index 30890e2863..27702efc51 100644
--- a/package/system/procd/Makefile
+++ b/package/system/procd/Makefile
@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=procd
-PKG_RELEASE:=1
+PKG_RELEASE:=3
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/procd.git
diff --git a/package/system/procd/files/procd.sh b/package/system/procd/files/procd.sh
index cf74333a7e..b8f9a210f6 100755
--- a/package/system/procd/files/procd.sh
+++ b/package/system/procd/files/procd.sh
@@ -49,6 +49,14 @@ procd_lock() {
 	local basescript=$(readlink "$initscript")
 	local service_name="$(basename ${basescript:-$initscript})"
 
+	flock -n 1000 &> /dev/null
+	if [ "$?" != "0" ]; then
+		exec 1000>"$IPKG_INSTROOT/var/lock/procd_${service_name}.lock"
+		flock 1000
+		if [ "$?" != "0" ]; then
+			logger "warning: procd flock for $service_name failed"
+		fi
+	fi
 }
 
 _procd_call() {
@@ -399,12 +407,12 @@ _procd_add_instance() {
 
 procd_running() {
 	local service="$1"
-	local instance="${2:-instance1}"
-	local running
+	local instance="${2:-*}"
+	[ "$instance" = "*" ] || instance="'$instance'"
 
 	json_init
 	json_add_string name "$service"
-	running=$(_procd_ubus_call list | jsonfilter -e "@['$service'].instances['$instance'].running")
+	local running=$(_procd_ubus_call list | jsonfilter -l 1 -e "@['$service'].instances[$instance].running")
 
 	[ "$running" = "true" ]
 }
@@ -435,6 +443,31 @@ _procd_send_signal() {
 	_procd_ubus_call signal
 }
 
+_procd_status() {
+	local service="$1"
+	local instance="$2"
+	local data
+
+	json_init
+	[ -n "$service" ] && json_add_string name "$service"
+
+	data=$(_procd_ubus_call list | jsonfilter -e '@["'"$service"'"]')
+	[ -z "$data" ] && { echo "inactive"; return 3; }
+
+	data=$(echo "$data" | jsonfilter -e '$.instances')
+	if [ -z "$data" ]; then
+		[ -z "$instance" ] && { echo "active with no instances"; return 0; }
+		data="[]"
+	fi
+
+	[ -n "$instance" ] && instance="\"$instance\"" || instance='*'
+	if [ -z "$(echo "$data" | jsonfilter -e '$['"$instance"']')" ]; then
+		echo "unknown instance $instance"; return 4
+	else
+		echo "running"; return 0
+	fi
+}
+
 procd_open_data() {
 	local name="$1"
 	json_set_namespace procd __procd_old_cb