New submission from NGG: The initiate_send() method in both asynchat.async_chat and asyncore.dispatcher_with_send is not a thread-safe function, but it can be called from multiple threads.
For example if asyncore.loop() runs in a background thread, and the main thread sends a message then both threads will call this. It can result in sending (part of) the message multiple times or not sending part of it. Possible solution: asyncore.dispatcher_with_send.out_buffer and asynchat.async_chat.producer_fifo should be guarded with a lock (it should be locked even in writable()) ---------- components: Library (Lib) messages: 260367 nosy: ngg priority: normal severity: normal status: open title: asynchat.async_chat and asyncore.dispatcher_with_send are not thread-safe type: behavior versions: Python 2.7, Python 3.2, Python 3.3, Python 3.4, Python 3.5, Python 3.6 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26371> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
