From 2c3dd70741d299a236aa18acf18ac27362718abc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Wed, 1 May 2019 07:23:21 +0200
Subject: [PATCH] procd: add procd_running() helper for checking running state
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This should be helpful for implementing service_running() in procd init
scripts.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: John Crispin <john@phrozen.org>
---
 package/system/procd/Makefile       |  2 +-
 package/system/procd/files/procd.sh | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/package/system/procd/Makefile b/package/system/procd/Makefile
index 2555105f137..03603738cd6 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:=2
 
 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 b49b2b9d019..8d6d4060125 100644
--- a/package/system/procd/files/procd.sh
+++ b/package/system/procd/files/procd.sh
@@ -30,6 +30,9 @@
 # procd_close_instance():
 #   Complete the instance being prepared
 #
+# procd_running(service, [instance]):
+#   Checks if service/instance is currently running
+#
 # procd_kill(service, [instance]):
 #   Kill a service instance (or all instances)
 #
@@ -402,6 +405,18 @@ _procd_add_instance() {
 	_procd_close_instance
 }
 
+procd_running() {
+	local service="$1"
+	local instance="${2:-instance1}"
+	local running
+
+	json_init
+	json_add_string name "$service"
+	running=$(_procd_ubus_call list | jsonfilter -e "@.$service.instances.${instance}.running")
+
+	[ "$running" = "true" ]
+}
+
 _procd_kill() {
 	local service="$1"
 	local instance="$2"