How can the nginx detect the stale event using 'instance'?

김수영 sykim at etri.re.kr
Tue Feb 21 09:51:19 UTC 2012


These days, I am studying the nginx source code..

I think this code is very beautiful, and fully modulized.. BUT so it is difficult to follow the code.-_-;

BTW, In struct ngx_event_s, there is ‘unsigned instance:1;’..

I can’t understand how can the nginx detect the stale events using it.-_-;

Could you please explain the detection mechanism or give me a hint?

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SOO-YOUNG KIM
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Storage System Research Team
Electronics and Telecommunications Research Institute

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