[OpenWrt-Devel] [RFC] procd: Allow to enable endless respawning of services

[Helmut Schaa]

Extend /etc/config/system with a parameter to enable
infinite respawn mode:

	config system
        	option service_endless_respawn 1

All services that don't specify specific respawn parameters
will get their defaults added by procd.sh and if service_endless_respawn
is set respawn_retry will be set to -1. This makes procd to
respawn the service forever.

Signed-off-by: Helmut Schaa <helmut.schaa at googlemail.com>
---
 package/system/procd/files/procd.sh | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/package/system/procd/files/procd.sh b/package/system/procd/files/procd.sh
index e83e75c..04111b9 100644
--- a/package/system/procd/files/procd.sh
+++ b/package/system/procd/files/procd.sh
@@ -316,6 +316,18 @@ _procd_append_param() {
 }
 
 _procd_close_instance() {
+	local respawn_vals
+	if json_select respawn ; then
+		json_get_values respawn_vals
+		if [ -z "$respawn_vals" ]; then
+			# Set respawn defaults
+			local respawn_retry
+			[[ -n "$(uci_get system. at system[0].service_endless_respawn)" ]] && respawn_retry=-1
+			_procd_add_array_data 3600 5 ${respawn_retry:-5}
+		fi
+		json_select ..
+	fi
+
 	json_close_object
 }
 
-- 
1.8.4.5
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