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119 lines
3.0 KiB
C
119 lines
3.0 KiB
C
/* progress.c
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* Copyright (C) 2003 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include "iobuf.h"
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#include "filter.h"
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#include "status.h"
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#include "util.h"
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#include "options.h"
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/****************
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* The filter is used to report progress to the user.
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*/
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int
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progress_filter (void *opaque, int control,
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IOBUF a, byte *buf, size_t *ret_len)
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{
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int rc = 0;
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progress_filter_context_t *pfx = opaque;
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if (control == IOBUFCTRL_INIT)
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{
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char buffer[50];
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pfx->last = 0;
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pfx->offset = 0;
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pfx->last_time = make_timestamp ();
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sprintf (buffer, "%.20s ? %lu %lu",
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pfx->what? pfx->what : "?",
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pfx->offset,
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pfx->total);
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write_status_text (STATUS_PROGRESS, buffer);
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}
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else if (control == IOBUFCTRL_UNDERFLOW)
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{
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u32 timestamp = make_timestamp ();
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int len = iobuf_read (a, buf, *ret_len);
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if (len >= 0)
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{
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pfx->offset += len;
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*ret_len = len;
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}
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else
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{
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*ret_len = 0;
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rc = -1;
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}
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if ((len == -1 && pfx->offset != pfx->last)
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|| timestamp - pfx->last_time > 0)
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{
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char buffer[50];
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sprintf (buffer, "%.20s ? %lu %lu",
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pfx->what? pfx->what : "?",
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pfx->offset,
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pfx->total);
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write_status_text (STATUS_PROGRESS, buffer);
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pfx->last = pfx->offset;
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pfx->last_time = timestamp;
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}
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}
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else if (control == IOBUFCTRL_FREE)
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{
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/* Note, that we must always dealloc resources of a filter
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within the filter handler and not anywhere else. (We set it
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to NULL and check all uses just in case.) */
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xfree (pfx->what);
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pfx->what = NULL;
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}
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else if (control == IOBUFCTRL_DESC)
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*(char**)buf = "progress_filter";
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return rc;
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}
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void
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handle_progress (progress_filter_context_t *pfx, IOBUF inp, const char *name)
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{
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off_t filesize = 0;
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if (!opt.enable_progress_filter)
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return;
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if (!is_status_enabled ())
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return;
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if ( !iobuf_is_pipe_filename (name) && *name )
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filesize = iobuf_get_filelength (inp, NULL);
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else if (opt.set_filesize)
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filesize = opt.set_filesize;
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/* register the progress filter */
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pfx->what = xstrdup (name ? name : "stdin");
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pfx->total = filesize;
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iobuf_push_filter (inp, progress_filter, pfx);
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}
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