I think these lines are the problem with your approach
> while (still_running){
> curl_multi_perform(multi_handle, &still_running);
> usleep(100000);
> }

You call curl to progress whenever you want (why you just sleep 100K?!), instead of when curl needs to be called.

For this your code should be event driven (with the socket and time functions of the multi API).

See more about the multi API in http://curl.haxx.se/libcurl/c/libcurl-multi.html
And also an example here: http://curl.haxx.se/libcurl/c/multi-app.html

HTH

Yehezkel

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Received on 2012-09-23