Re: [Libevent-users] Stateful protocol fix

[Azat Khuzhin <a3at.mail@xxxxxxxxx>]

On Sun, Jul 2, 2017 at 8:52 PM, Dan Moore <danmoore63043@xxxxxxxxx> wrote:
> I think I need a function named bufferevent_free_setcb().  It would run after all of the other queued events for the fd.
>
> I have a stateful protocol, and when I ditch a connection with bufferevent_free(), callbacks still run that reference my context structure.  I understand why this is happening, but it means that I have to guess how long I should wait and then add a timer event to free the context.

Hi Dan,

bufferevent_free() will not free the bufferevent if it is still in
use, and if your callback executed the it is in use (regardless is it
deferred callback or not).
And also bufferevent_free() resets all callbacks (regardless it is in
use or not, to make free possible once all ref counts decremented to
zero).
So you should guess and wait, it will be freed once refcnt will be zero.

Can you elaborate your problem? (Or provide a reproducer which will
show the problem).
***********************************************************************
To unsubscribe, send an e-mail to majordomo@xxxxxxxxxxxxx with
unsubscribe libevent-users    in the body.