The meaning of ngx_http_request_t.out ?
torshie at gmail.com
Tue Aug 27 03:21:38 UTC 2013
I'm writing an nginx module, it does something similar to the sub module.
After some research I succeeded in handling the ngx_chain_t pointer passed
to my body filter. My module seems to work well for static files.
When my module is handling PHP responses (fastcgi), sometimes the
ngx_chain_t pointer is NULL. I simply call the next body filter in such
situation like the sub module body filter. However function
ngx_http_write_filter() will fail, because r->out isn't NULL
and the buf's in r->out are of zero size.
My questions are: what's the meaning of r->out? how should I modify it in
my body filter ? Could I simply return NGX_OK in my body filter without
calling the next body filter if the ngx_chain_t pointer is NULL ?
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