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MessageBus.add_message_handler:Support coroutine functions in callbacks. #156

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MessageBus.add_message_handler:Support coroutine functions in callbacks. #156

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10 changes: 6 additions & 4 deletions dbus_next/message_bus.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14,8 +14,8 @@
import logging
import xml.etree.ElementTree as ET
import traceback

from typing import Type, Callable, Optional, Union
import asyncio
from typing import Type, Callable, Optional, Union, Coroutine


class BaseMessageBus:
Expand Down Expand Up @@ -665,8 +665,10 @@ def _process_message(self, msg):

for handler in self._user_message_handlers:
try:
result = handler(msg)
if result:
result = handler(msg)
if isinstance(result, Coroutine):
asyncio.create_task(result)
elif result:
if type(result) is Message:
self.send(result)
handled = True
Expand Down