Ah I see now. Thanks! I will look at switching Happstack 8 to use
simple-sendfile. I have never liked the sendfile library much[1], and
would glad to be done with it forever.
- jeremy
[1] I am not the original author.
On Sun, Jun 24, 2012 at 8:58 PM, Kazu Yamamoto
How do you handle timeouts? If you use sendfile to send a large file (such as a video download) and it takes longer than the warp timeout period (30 seconds or something), won't warp kill the connection thinking that the connection has hung and no progress is being made? Or am I missing something?
Haskell network library opens a socket with the non-blocking flag set. So, the sendfile syscall returns if there is not enough write buffer. The sendfile function in simple-sendfile takes an IO function which is called when the sendfile syscall returns. Warp resets timeout via the IO function.
--Kazu
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