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CURLOPT_XFERINFODATA(3) | libcurl | CURLOPT_XFERINFODATA(3) |
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 is 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_cb(void *clientp,
curl_off_t dltotal,
curl_off_t dlnow,
curl_off_t ultotal,
curl_off_t ulnow) {
struct progress *memory = clientp;
printf("private ptr: %p\n", memory->private);
/* use the values */
return 0; /* all is good */ } int main(void) {
CURL *curl = curl_easy_init();
if(curl) {
struct progress data;
/* pass struct to callback */
curl_easy_setopt(curl, CURLOPT_XFERINFODATA, &data);
curl_easy_setopt(curl, CURLOPT_XFERINFOFUNCTION, progress_cb);
} }
AVAILABILITY¶
Added in 7.32.0
RETURN VALUE¶
Returns CURLE_OK
SEE ALSO¶
CURLOPT_NOPROGRESS(3), CURLOPT_VERBOSE(3), CURLOPT_XFERINFOFUNCTION(3)
December 4, 2023 | ibcurl 8.5.0 |