Thanks for your support I solved my problems a while ago, and I completely redesigned the code because as you said it was running in O(N)
Thanks for your support mate Cheers On Mon, May 17, 2010 at 11:57 PM, Nick Mathewson <ni...@freehaven.net>wrote: > On Thu, Apr 8, 2010 at 7:46 AM, Sherif Fanous <sherif.fan...@gmail.com> > wrote: > > Hi > > I am using libevent 2.0.4 alpha in my C application. > > The below snapshot of my code occasionally encounters the following 2 > > problems > > > > [err] event.c:1961: Assertion !(ev->ev_flags & ~EVLIST_ALL) failed in > > event_del_internal > > Aborted > > Segmentation Fault. I've traced down that it occurs in > the event_base_loop > > call > > > > In a nutshell, I have a linked list of servers. I loop through every > server, > > if I'm connected to that server then I create an event for the socket. I > > then run the event loop with a timeout. I use the timeout to break out of > > the event loop and check if the termination condition has been > encountered > > in another thread. I also run the event loop with EVLOOP_ONCE to break > out > > of the loop as soon as 1 event triggers to re-evaluate the linked list of > > servers (new connections established, current connections terminated, > ...) > > When I break of the event loop, I delete the events and free them. > > Can anyone please tell me what I'm doing wrong here? Is it an internal > > libevent problem, or is my code messing up somewhere? > > Try running 2.0.5-beta with the debugging options. (That is, call > event_enable_debug_mode() before any other libevent call.) > > I think the problem in the code you posted might be that your cleanup > loop is calling event_del() and event_free() on every event[i], but > your setup loop is only setting event[i] if > servers_array[i]->is_socket_connected. This will make some of the > entries in event[i] be uninitialized, which will make event_del() very > unhappy. > > [Also, fwiw, the code you posted is going to be pretty inefficient: it > loops over all the servers every time you call the event loop, so it's > going to be O(N) in the number of servers, even if you're on an OS > with an efficient O(1) backend for Libevent to use.] > > hth, > -- > Nick > *********************************************************************** > To unsubscribe, send an e-mail to majord...@freehaven.net with > unsubscribe libevent-users in the body. >
