Thanks for the confirmation Nick. Balancing the connections across event_base instances is tricky since their traffic loads are variable.
And if I take the thread pool + work queue approach, I end up with something that look a lot like an ACE reactor ;) Regards, Brian Hassink -----Original Message----- From: owner-libevent-us...@freehaven.net [mailto:owner-libevent-us...@freehaven.net] On Behalf Of Nick Mathewson Sent: Tuesday, May 22, 2012 1:22 PM To: libevent-us...@freehaven.net Subject: Re: [Libevent-users] Does an event loop support multiple threads? On Tue, May 22, 2012 at 1:13 PM, Hassink, Brian <brian.hass...@tekelec.com> wrote: > Hello list, > > I'm new to libevent and trying to learn some more about it for potential use > in a project. I've worked with ACE reactor and ASIO proactor in the past, > and after briefly skimming the "book", am wondering about multi-threaded > support in libevent. When I look at R2 and R3, and some of the asynchronous > IO examples, it's not clear whether multiple threads can be running/using > the same event_base instance. Nope, not at present. If you want to do a multithreaded design like that with any current version of Libevent, either you need multiple event_bases (one per thread), and some means to load-balance connections between them, or you need some kind of thread pool + work queue system to handle the work of distributing your callbacks across different processors. yrs, -- Nick *********************************************************************** To unsubscribe, send an e-mail to majord...@freehaven.net with unsubscribe libevent-users in the body. *********************************************************************** To unsubscribe, send an e-mail to majord...@freehaven.net with unsubscribe libevent-users in the body.
