NAME

       curl_easy_perform - perform a blocking file transfer

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_perform(CURL *easy_handle);

DESCRIPTION

       Invoke  this  function  after  curl_easy_init(3) 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 easy_handle as input as
       the curl_easy_init(3) call returned.

       curl_easy_perform(3) performs the entire request in a blocking manner and returns when  done,  or  if  it
       failed. For non-blocking behavior, see curl_multi_perform(3).

       You can do any amount of calls to curl_easy_perform(3) while using the same easy_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 easy_handle. Let the
       function return first before invoking it another time. If you  want  parallel  transfers,  you  must  use
       several curl easy_handles.

       While the easy_handle is added to a multi handle, it cannot be used by curl_easy_perform(3).

RETURN VALUE

       CURLE_OK  (0)  means  everything  was ok, non-zero means an error occurred as <curl/curl.h> defines - see
       libcurl-errors(3). If the CURLOPT_ERRORBUFFER(3)  was  set  with  curl_easy_setopt(3)  there  will  be  a
       readable error message in the error buffer when non-zero is returned.

EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         CURLcode res;
         curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
         res = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
       }

SEE ALSO

       curl_easy_init(3),   curl_easy_setopt(3),   curl_multi_add_handle(3),   curl_multi_perform(3),   libcurl-
       errors(3),

libcurl 7.58.0                                    May 02, 2016                              curl_easy_perform(3)