Bugfix: pool_active: Skip testing explicitly when we have a recent answer

miner.c

@@ -7990,7 +7990,7 @@ static bool stratum_works(struct pool *pool)
 
 static bool pool_active(struct pool *pool, bool pinging)
 {
-	struct timeval tv_getwork, tv_getwork_reply;
+	struct timeval tv_now, tv_getwork, tv_getwork_reply;
 	bool ret = false;
 	json_t *val;
 	CURL *curl;
@@ -7999,6 +7999,15 @@ static bool pool_active(struct pool *pool, bool pinging)
 	struct work *work;
 	enum pool_protocol proto;
 
+	if (pool->stratum_init)
+		return pool->stratum_active;
+	
+	timer_set_now(&tv_now);
+	if (timer_isset(&pool->tv_last_work_time) && timer_elapsed(&pool->tv_last_work_time, &tv_now) < 60)
+		return true;
+	if (pool->idle && timer_elapsed(&pool->tv_idle, &tv_now) < 30)
+		return false;
+	
 		applog(LOG_INFO, "Testing pool %s", pool->rpc_url);
 
 	/* This is the central point we activate stratum when we can */