[mod] avoid infinite loop to prevent memleaks

run.py

@@ -343,42 +343,41 @@ async def launch_monthly_job(type):
         await create_job(repo.name, repo.app_list, repo, job_command_last_part)
 
 
+@always_relaunch(sleep=3)
 async def jobs_dispatcher():
     if Worker.select().count() == 0:
         for i in range(1):
             Worker.create(state="available")
 
-    while True:
-        workers = Worker.select().where(Worker.state == "available")
+    workers = Worker.select().where(Worker.state == "available")
 
-        # no available workers, wait
-        if workers.count() == 0:
+    # no available workers, wait
+    if workers.count() == 0:
+        return
+
+    with db.atomic('IMMEDIATE'):
+        jobs = Job.select().where(Job.state == "scheduled")
+
+        # no jobs to process, wait
+        if jobs.count() == 0:
             await asyncio.sleep(3)
-            continue
+            return
 
-        with db.atomic('IMMEDIATE'):
-            jobs = Job.select().where(Job.state == "scheduled")
+        for i in range(min(workers.count(), jobs.count())):
+            job = jobs[i]
+            worker = workers[i]
 
-            # no jobs to process, wait
-            if jobs.count() == 0:
-                await asyncio.sleep(3)
-                continue
+            job.state = "running"
+            job.started_time = datetime.now()
+            job.save()
 
-            for i in range(min(workers.count(), jobs.count())):
-                job = jobs[i]
-                worker = workers[i]
+            worker.state = "busy"
+            worker.save()
 
-                job.state = "running"
-                job.started_time = datetime.now()
-                job.save()
-
-                worker.state = "busy"
-                worker.save()
-
-                jobs_in_memory_state[job.id] = {
-                    "worker": worker.id,
-                    "task": asyncio.ensure_future(run_job(worker, job)),
-                }
+            jobs_in_memory_state[job.id] = {
+                "worker": worker.id,
+                "task": asyncio.ensure_future(run_job(worker, job)),
+            }
 
 
 async def run_job(worker, job):