CURLOPT_XFERINFODATA

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),