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CURLOPT_XFERINFOFUNCTION: introducing a new progress callback

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CURLOPT_XFERINFOFUNCTION is now the preferred progress callback function
and CURLOPT_PROGRESSFUNCTION is considered deprecated.

This new callback uses pure 'curl_off_t' arguments to pass on full
resolution sizes. It otherwise retains the same characteristics: the
same call rate, the same meanings for the arguments and the return code
is used the same way.

The progressfunc.c example is updated to show how to use the new
callback for newer libcurls while supporting the older one if built with
an older libcurl or even built with a newer libcurl while running with
an older.
This commit is contained in:
Daniel Stenberg
2013-06-15 14:57:01 +02:00
parent 90695fb2c5
commit 12d01cb6fa
8 changed files with 140 additions and 29 deletions
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19
lib/progress.c
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@@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@@ -357,12 +357,21 @@ int Curl_pgrsUpdate(struct connectdata *conn)
} /* Calculations end */
if(!(data->progress.flags & PGRS_HIDE)) {
/* progress meter has not been shut off */
if(data->set.fprogress) {
/* There's a callback set, so we call that instead of writing
anything ourselves. This really is the way to go. */
if(data->set.fxferinfo) {
/* There's a callback set, call that */
result= data->set.fxferinfo(data->set.progress_client,
data->progress.size_dl,
data->progress.downloaded,
data->progress.size_ul,
data->progress.uploaded);
if(result)
failf(data, "Callback aborted");
return result;
}
else if(data->set.fprogress) {
/* The older deprecated callback is set, call that */
result= data->set.fprogress(data->set.progress_client,
(double)data->progress.size_dl,
(double)data->progress.downloaded,