Re: [Libevent-users] Handling concurent evhttp connections with evhttp_send_reply_chunk.

[Tero Marttila <terom@xxxxxxxx>]

Krzysztof Adamski wrote:
> Hi,
> i would like to build simple HTTPD server using libevent2. It is going
> to send some quite big files but i would like it to handle couple
> concurrent connections. The files can be sent in chunks so I'm using
> evhttp_send_reply_chunk for this. The problem is, how can I send big
> files while still being able to handle new connections? 

One option is to add the functionality to evhttp.

I don't have any concrete patches to post, but when I tried this a 
(long) while ago, it was fairly straightforward, just building on top of 
the existing bufferevent watermark functionality.

More specifically, it amounted to having evhttp_write_buffer apply a 
suitable bufferevent_setwatermark (EV_WRITE lowmark) when called from 
within evhttp_send_reply_chunk, setting up evcon->cb to invoke the 
user's "send more data" callback from evhttp_write_cb. This worked, to 
the extent that I tested it.

 -- Tero Marttila
***********************************************************************
To unsubscribe, send an e-mail to majordomo@xxxxxxxxxxxxx with
unsubscribe libevent-users    in the body.