I have a background thread that starts and stops libcurl downloads using the "multi" interface. It has a poll() loop that waits for something to happen on either one of libcurl's sockets or on a loopback socket that is used to interrupt poll().
After running for a bit, there is a periodic HTTP request we send. When these start, libcurl calls our CURLMOPT_TIMERFUNCTION with a timeout of 0. So the poll() loop starts polling with hot CPU. The download then completes. We curl_multi_remove_handle() then curl_easy_cleanup() in our handling of the curl_multi_info_read() messages. However, at this point, even though libcurl has no active downloads on the multi handle, we never get a timer callback to set the timeout back to -1, so our poll() loop continues running hot. Am I doing something wrong? For now, I'm going to set the timeout to -1 when curl_multi_socket_action(CURL_SOCKET_TIMEOUT) returns 0 running handles to stop the thread running hot. Thanks! ------------------------------------------------------------------- Unsubscribe: https://cool.haxx.se/list/listinfo/curl-library Etiquette: https://curl.haxx.se/mail/etiquette.html
