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curl_easy_perform(3) libcurl Manual curl_easy_perform(3) NAME curl_easy_perform - Perform a file transfer SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_perform(CURL *handle); DESCRIPTION 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 returned. 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 opera- tions 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 trans- fers, you must use several curl handles. RETURN VALUE 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 mes- sage in the error buffer when non-zero is returned. SEE ALSO curl_easy_init(3), curl_easy_setopt(3), libcurl 7.7 5 Mar 2001 curl_easy_perform(3) |