net: lwm2m: retry registration update 6 seconds before expiration (7934e249) · Commits · Wenxi XU / zephyr

When the priority of the LwM2M engine was lowered, it causes an occasional registration update to fall outside of the registration lifetime. This shows up as the following error: Failed with code 4.4. Retrying registration Let's try and retry a bit earlier to account for the priority change. Signed-off-by:

Michael Scott <michael@opensourcefoundries.com>

subsys/net/lib/lwm2m/lwm2m_rd_client.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -62,7 +62,7 @@

		#define LWM2M_RD_CLIENT_URI "rd"

		#define SECONDS_TO_UPDATE_EARLY 2
		#define SECONDS_TO_UPDATE_EARLY 6
		#define STATE_MACHINE_UPDATE_INTERVAL K_MSEC(500)

		/* Leave room for 32 hexadeciaml digits (UUID) + NULL */
		@@ -640,7 +640,10 @@ static int sm_registration_done(void)
		int ret = 0;
		bool forced_update;

		/* check for lifetime seconds - 1 so that we can update early */
		/*
		* check for lifetime seconds - SECONDS_TO_UPDATE_EARLY
		* so that we can update early and avoid lifetime timeout
		*/
		if (sm_is_registered() &&
		(client.trigger_update \|\|
		((client.lifetime - SECONDS_TO_UPDATE_EARLY) <=

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