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CURLOPT_PROGRESSDATA(3) curl_easy_setopt options CURLOPT_PROGRESSDATA(3)

NAME

CURLOPT_PROGRESSDATA - custom pointer passed to the progress callback

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROGRESSDATA, 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_PROGRESSFUNCTION(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,
double dltotal,
double dlnow,
double ultotal,
double ulnow)
{
struct memory *progress = (struct progress *)userp;
/* use the values */
return 0; /* all is good */
}
struct progress data;
/* pass struct to callback */
curl_easy_setopt(curl_handle, CURLOPT_PROGRESSDATA, &data);
curl_easy_setopt(curl_handle, CURLOPT_PROGRESSFUNCTION, progress_callback);

AVAILABILITY

Always

RETURN VALUE

Returns CURLE_OK

SEE ALSO

CURLOPT_PROGRESSFUNCTION(3), CURLOPT_XFERINFOFUNCTION(3),

September 1, 2021 libcurl 7.79.1