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CURLOPT_XFERINFODATA(3)    curl_easy_setopt options    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 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 *)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);

AVAILABILITY

Added in 7.32.0

RETURN VALUE

Returns CURLE_OK

SEE ALSO

CURLOPT_XFERINFOFUNCTION(3), CURLOPT_VERBOSE(3), libcurl 7.83.1 November 26, 2021 CURLOPT_XFERINFODATA(3)

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