Toby Douglass toby.douglass at
Wed Mar 7 21:06:24 UTC 2007

Niels Provos wrote:
> On 3/7/07, Toby Douglass <toby.douglass at> wrote:
>> I'm not familiar with libevent, but if it actually has callers 
>> waiting, in
>> a sleep, for events to occur, then all the event handling under Win32 
>> will
>> need to be rewritten to use I/O completion events.  I think it is not
>> possible to use IOCP in conjunction with normal Wait() type functions,
>> which I suspect libevent must ultimately rest upon.

> for the amount of email that you have sent to the libevent mailing
> list, it's surprising that you don't know more about it.

lol! :-)

What happened was that I tried looking at the libevent code, but it was 
highly incompatable with me.  I gave up quickly.

> Libevent
> provides notifications for non-blocking IO.  That means that there are
> no callers waiting in sleep.  Any processing using a libevent-like
> frameworks is done via callbacks.  Each callback is assumed to be
> non-blocking and fast to complete.
> Nick's suggestion about investigating the bufferevent layer in
> libevent seems very reasonable.  There are quite a few low-hanging
> fruits for optimization.

Okay.  I'll have another stab at the libevent code.

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