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Re: CPS-chained subrequests with I/O interceptions no longer work in nginx 0.8.21 (Was Re: Custom event + timer regressions caused by the new release)

agentzh
October 28, 2009 12:48AM
On Wed, Oct 28, 2009 at 12:26 PM, agentzh <agentzh@gmail.com> wrote:
> On Tue, Oct 27, 2009 at 9:41 PM, Maxim Dounin <mdounin@mdounin.ru> wrote:
>> Could you please try to produce reduced code that triggers the issue?
>>
>
> 2. In A's post_subrequest's handler, i.e., the
> "post_subrequest_handler" function, issues subrequest B to a location,
> say, /foo, that involves I/O operations, like this:
>
>    location /foo {
>       proxy_pass "http://bar.com/baz";
>    }
>

Oops, forget to mention that this subrequest B is issued using the
subrequest A's parent request object. The "post_subrequest_handler"
function's implementation looks like this:

static ngx_int_t
post_subrequest_handler(ngx_http_request_t *r) {
rc = ngx_http_subrequest(r->parent, &location, url_args, &sr, psr, 0);
if (rc != NGX_OK) {
return NGX_ERROR;
}
return NGX_OK;
}

And yeah, I know this piece of code looks very tricky and I was so
delighted to find out that it actually worked in those previous
versions :)

Cheers,
-agentzh
Subject Author Posted

CPS-chained subrequests with I/O interceptions no longer work in nginx 0.8.21 (Was Re: Custom event + timer regressions caused by the new release)

agentzh October 27, 2009 06:48AM

Re: CPS-chained subrequests with I/O interceptions no longer work in nginx 0.8.21 (Was Re: Custom event + timer regressions caused by the new release)

Maxim Dounin October 27, 2009 09:44AM

Re: CPS-chained subrequests with I/O interceptions no longer work in nginx 0.8.21 (Was Re: Custom event + timer regressions caused by the new release)

agentzh October 28, 2009 12:32AM

Re: CPS-chained subrequests with I/O interceptions no longer work in nginx 0.8.21 (Was Re: Custom event + timer regressions caused by the new release)

agentzh October 28, 2009 12:48AM

Re: CPS-chained subrequests with I/O interceptions no longer work in nginx 0.8.21 (Was Re: Custom event + timer regressions caused by the new release)

agentzh October 28, 2009 05:20AM

Re: CPS-chained subrequests with I/O interceptions no longer work in nginx 0.8.21 (Was Re: Custom event + timer regressions caused by the new release)

agentzh October 28, 2009 05:20AM

Re: CPS-chained subrequests with I/O interceptions no longer work in nginx 0.8.21 (Was Re: Custom event + timer regressions caused by the new release)

Maxim Dounin October 28, 2009 06:18AM

Re: CPS-chained subrequests with I/O interceptions no longer work in nginx 0.8.21 (Was Re: Custom event + timer regressions caused by the new release)

agentzh October 28, 2009 10:44PM

Re: CPS-chained subrequests with I/O interceptions no longer work in nginx 0.8.21 (Was Re: Custom event + timer regressions caused by the new release)

agentzh November 18, 2009 11:24PM



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