[Quickfix-developers] Closing down a quickfix client safely (avoiding message loss)

[Simeon S. <sim...@gm...>]

Hi,

When a quickfix client application is closed (e.g. via ^C), one needs to
check the buffers and only quit after all the messages already in the
buffers have been processed. If the application quits without checking the
message buffers, if there are any messages that have been received but not
yet processed (which is not unlikely) then these messages will be lost.

In otherwords:

void on_quit(void) {
    // We caught ^C
    socket_initiator.stop(); // Closes the socket connection
    while(messages_in_buffers()) {
        // process msg
    }
}

The other option is to persist messages to disk. I would be very grateful
if someone could shine some light on the issues above. I am not sure how to
block until all messages in the buffers have been processed (the while loop
above).

Simeon