[dev] possible "bug" in ngx_http_read_discarded_body_handler

[Manlio Perillo]

Igor Sysoev ha scritto:
> [...]
>> I have read the ngx_http_finalize_request source and it handles the 
>> NGX_AGAIN status code.
> 
> If request was finished with NGX_AGAIN and there is buffered data in
> filters, then nginx set ngx_http_writer() that pumps this data to client.
> 

Ok, thanks.
Now it is more clear how Nginx handles buffered data.

There is only one thing to understand: how the flush attribute of the 
buffer object works and when there is a need to flush the buffer.

>> Its very hard to follow the entire code flow of Nginx!
> 
> It is even more complex if you look subreqeust processing.
> 

What is the use case for a subrequest, and how it works?

> 



Regards  Manlio Perillo