CURLOPT_XFERINFODATA - Online Linux Manual PageSection : 3
Updated : November 26, 2021
Source : libcurl 7.82.0
Note : curl_easy_setopt options
NAMECURLOPT_XFERINFODATA − pointer passed to the progress callback
SYNOPSIS#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_XFERINFODATA, void *pointer);
DESCRIPTIONPass 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).
DEFAULTThe default value of this parameter is NULL.
PROTOCOLSAll
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 *)userp;
/* 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);
AVAILABILITYAdded in 7.32.0
RETURN VALUEReturns CURLE_OK
SEE ALSOCURLOPT_XFERINFOFUNCTION(3), CURLOPT_VERBOSE (3)," 0
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