Fixes

prog/download_server.py

@@ -93,7 +93,7 @@ class DownloadServer(communication.FuncCaller):
         if len(last_data):
             return last_data[-1]
         else:
-            return wait_data(False)
+            return await wait_data(False)
 
     @communication.server_exec()
     async def wait_next_data(self, last_dt: datetime.datetime, preferably_compressed: bool = True):
@@ -107,7 +107,7 @@ class DownloadServer(communication.FuncCaller):
         for dt, data in last_data:
             if dt > last_dt:
                 return dt, data
-        return wait_data(preferably_compressed)
+        return await wait_data(preferably_compressed)
 
 
 async def client_connected(reader, writer):

prog/server.py

@@ -3,6 +3,6 @@ import asyncio
 
 async def main():
     s = await communication.StdInOutSocket().connect()
-    await communication.DownloadServer(s, is_server=True)._server_.run()
+    await communication.MainServer(s, is_server=True)._server_.run()
 
 asyncio.run(main())