best way to get a 1-second timer-tick?

[Arnaud GRANAL]

2011/4/23 Maxim Dounin <mdounin at mdounin.ru>:
> Hello!
>

Hi!

> On Fri, Apr 22, 2011 at 09:09:15PM +0300, Arnaud GRANAL wrote:
>
>> On Fri, Apr 22, 2011 at 9:02 PM, Neil Mckee <neil.mckee.ca at gmail.com> wrote:
>> > Hello,
>> >
>>
>> Hi Neil,
>>
>> > I have written a module to implement sFlow in nginx  (nginx-sflow-module.googlecode.com).   I'm simulating a 1-second timer-tick by assuming that the request handler will be called at least once per second.   That's probably a safe assumption for any server that would care about sFlow monitoring,  but I expect there's a better way...
>> >
>> > I tried asking for a timer callback like this:
>> >
>> > ngx_event_t *ev = ngx_pcalloc(pool, sizeof(ngx_event_t));
>> > ev->hander = ngx_http_sflow_tick_event_hander;
>> > ngx_add_timer(ev, 1000);
>> >
>> > but (like most russian girls) the event never called me back.  It looks like I might have to hang this on a file-descriptor somehow,  but that's where I'm getting lost.  Any pointers would be most appreciated.
>> >
>>
>> The main thing is that you should use ngx_add_event() here instead of
>> callocing the event struct directly and be careful of what you do with
>> ngx_http_finalize_request.
>
> No, you are wrong.
>

Then i'll know for the next guy :o)

A.