Blocks until there is activity on any of the curl_multi connections.
A cURL multi handle returned by curl_multi_init.
Time, in seconds, to wait for a response.
On success, returns the number of descriptors contained in the descriptor sets. This may be 0 if there was no activity on any of the descriptors. On failure, this function will return -1 on a select failure (from the underlying select system call).
|8.0.0||multi_handle expects a CurlMultiHandle instance now; previously, a resource was expected.|