MT#55283 refactor load monitor thread

Use the looper thread helper functions.

Change-Id: Ib272ce706484f393bd42f291231c82ff6ea5212f

daemon/load.c

@@ -14,12 +14,11 @@ int cpu_usage; // percent times 100 (0 - 9999)
 
 static long used_last, idle_last;
 
-void load_thread(void *dummy) {
+enum thread_looper_action load_thread() {
 	// anything to do?
 	if (!rtpe_config.load_limit && !rtpe_config.cpu_limit)
-		return;
+		return TLA_BREAK;
 
-	while (!rtpe_shutdown) {
 	if (rtpe_config.load_limit) {
 		double loadavg;
 		if (getloadavg(&loadavg, 1) >= 1)
@@ -52,8 +51,5 @@ void load_thread(void *dummy) {
 		}
 	}
 
-		thread_cancel_enable();
-		usleep(500000);
-		thread_cancel_disable();
-	}
+	return TLA_CONTINUE;
 }

daemon/main.c

@@ -1343,8 +1343,8 @@ int main(int argc, char **argv) {
 			rtpe_config.idle_priority, "poller timer");
 
 	/* load monitoring thread */
-	thread_create_detach_prio(load_thread, NULL, rtpe_config.idle_scheduling,
-			rtpe_config.idle_priority, "load monitor");
+	thread_create_looper(load_thread, rtpe_config.idle_scheduling,
+			rtpe_config.idle_priority, "load monitor", 500000);
 
 	/* separate thread for releasing ports (sockets), which are scheduled for clearing */
 	thread_create_looper(release_closed_sockets, rtpe_config.idle_scheduling,

include/load.h

@@ -4,6 +4,6 @@
 extern int load_average; // times 100
 extern int cpu_usage; // times 100
 
-void load_thread(void *);
+enum thread_looper_action load_thread(void);
 
 #endif