NAME¶

CURLOPT_XFERINFODATA - pointer passed to the progress callback

SYNOPSIS¶

#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_XFERINFODATA, void *pointer);

DESCRIPTION¶

Pass a pointer that will be untouched by libcurl and passed as the first argument in the progress callback set with CURLOPT_XFERINFOFUNCTION(3).

This is an alias for CURLOPT_PROGRESSDATA(3).

DEFAULT¶

The default value of this parameter is NULL.

PROTOCOLS¶

All

EXAMPLE¶

 struct progress {


   char *private;


   size_t size;


 };


 static size_t progress_callback(void *clientp,


                                 curl_off_t dltotal,


                                 curl_off_t dlnow,


                                 curl_off_t ultotal,


                                 curl_off_t ulnow)


 {


   struct memory *progress = (struct progress *)clientp;


   /* use the values */


   return 0; /* all is good */


 }


 struct progress data;


 /* pass struct to callback  */


 curl_easy_setopt(curl_handle, CURLOPT_XFERINFODATA, &data);


 curl_easy_setopt(curl_handle, CURLOPT_XFERINFOFUNCTION, progress_callback);

AVAILABILITY¶

Added in 7.32.0

RETURN VALUE¶

Returns CURLE_OK

SEE ALSO¶

CURLOPT_XFERINFOFUNCTION(3), CURLOPT_VERBOSE(3),