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gnupg/g10/progress.c
Werner Koch c0c2c58054 Finished the bulk of changes for gnupg 1.9. This included switching
to libgcrypt functions, using shared error codes from libgpg-error,
replacing the old functions we used to have in ../util by those in
../jnlib and ../common, renaming the malloc functions and a couple of
types.  Note, that not all changes are listed below becuause they are
too similar and done at far too many places.  As of today the code
builds using the current libgcrypt from CVS but it is very unlikely
that it actually works.
2003-06-18 19:56:13 +00:00

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3.0 KiB
C

/* progress.c
* Copyright (C) 2003 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <config.h>
#include <stdio.h>
#include "gpg.h"
#include "iobuf.h"
#include "filter.h"
#include "status.h"
#include "util.h"
#include "options.h"
/****************
* The filter is used to report progress to the user.
*/
int
progress_filter (void *opaque, int control,
iobuf_t a, byte *buf, size_t *ret_len)
{
int rc = 0;
progress_filter_context_t *pfx = opaque;
if (control == IOBUFCTRL_INIT)
{
char buffer[50];
pfx->last = 0;
pfx->offset = 0;
pfx->last_time = make_timestamp ();
sprintf (buffer, "%.20s ? %lu %lu",
pfx->what? pfx->what : "?",
pfx->offset,
pfx->total);
write_status_text (STATUS_PROGRESS, buffer);
}
else if (control == IOBUFCTRL_UNDERFLOW)
{
u32 timestamp = make_timestamp ();
int len = iobuf_read (a, buf, *ret_len);
if (len >= 0)
{
pfx->offset += len;
*ret_len = len;
}
else
{
*ret_len = 0;
rc = -1;
}
if ((len == -1 && pfx->offset != pfx->last)
|| timestamp - pfx->last_time > 0)
{
char buffer[50];
sprintf (buffer, "%.20s ? %lu %lu",
pfx->what? pfx->what : "?",
pfx->offset,
pfx->total);
write_status_text (STATUS_PROGRESS, buffer);
pfx->last = pfx->offset;
pfx->last_time = timestamp;
}
}
else if (control == IOBUFCTRL_FREE)
{
/* Note, that we must always dealloc resources of a filter
within the filter handler and not anywhere else. (We set it
to NULL and check all uses just in case.) */
xfree (pfx->what);
pfx->what = NULL;
}
else if (control == IOBUFCTRL_DESC)
*(char**)buf = "progress_filter";
return rc;
}
void
handle_progress (progress_filter_context_t *pfx, iobuf_t inp, const char *name)
{
off_t filesize = 0;
if (!opt.enable_progress_filter)
return;
if (!is_status_enabled ())
return;
if (name && *name && !(*name == '-' && !name[1]))
filesize = iobuf_get_filelength (inp);
else if (opt.set_filesize)
filesize = opt.set_filesize;
/* register the progress filter */
pfx->what = xstrdup (name ? name : "stdin");
pfx->total = filesize;
iobuf_push_filter (inp, progress_filter, pfx);
}