curl_easy_perform(3) libcurl Manual curl_easy_perform(3)NAMEcurl_easy_perform - Perform a file transfer
CURLcode curl_easy_perform(CURL *handle);
This function is called after the init and all the
curl_easy_setopt(3) calls are made, and will perform the
transfer as described in the options. It must be called
with the same handle as input as the curl_easy_init call
You can do any amount of calls to curl_easy_perform(3) while
using the same handle. If you intend to transfer more than
one file, you are even encouraged to do so. libcurl will
then attempt to re-use the same connection for the following
transfers, thus making the operations faster, less CPU
intense and using less network resources. Just note that you
will have to use curl_easy_setopt(3) between the invokes to
set options for the following curl_easy_perform.
You must never call this function simultaneously from two
places using the same handle. Let the function return first
before invoking it another time. If you want parallel
transfers, you must use several curl handles.
0 means everything was ok, non-zero means an error occurred
as <curl/curl.h> defines. If the CURLOPT_ERRORBUFFER was set
with curl_easy_setopt there will be a readable error message
in the error buffer when non-zero is returned.
SEE ALSOcurl_easy_init(3), curl_easy_setopt(3),
libcurl 7.7 Last change: 5 Mar 2001 1