Hi,

I am using libcurl for my applications and is very good. As part of recent
assignment, I need to send multiple HTTP requests over the same socket
asynchronously.

Currently i am using multi handle with CURLMOPT_MAX_TOTAL_CONNECTIONS set
and adding easy_handles[requests] to multi_handle. I am using libuv to
handle the http requests asynchronously. A similar implementation specified
in multi-uv.c example of curl.

*I am doing it on scale of 10000 requests over 1000 connections with a HTTP
Get of 200kb.txt. Upon the socket close[connection reset] by Server, i see
a delayed POLL_REMOVE notification for some sockfds from libcurl and the
libuv is aborting due to BAD_FILE_DESCRIPTOR for those invalidated sockfd
by libcurl. *

Could you please let me know the ideal way of handling these erroneous
scenarios in my application?

I tried using CURLOPT_OPENSOCKETFUNCTION and CURLOPT_CLOSESOCKETFUNCTION to
maintain sockets manually using the multi-handle. However i am getting
close_socket notification for every single request, and i cannot close the
socket as there could be other easy handles using the same socket, So i am
unable to figure out a way to use multiple-requests over the same socket .

I feel if there is a way that libcurl notifies application with POLL_REMOVE
when the sockfd is active, it would be great.

Kindly let me know the way to handle this scenario gracefully.

Thanks,
Srikanth

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Received on 2017-07-18