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/* progress.c - show loading progress */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2013 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/types.h>
#include <grub/time.h>
#include <grub/term.h>
#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/normal.h>
#include <grub/net.h>
GRUB_MOD_LICENSE ("GPLv3+");
#define UPDATE_INTERVAL 800
static void
grub_file_progress_hook_real (grub_disk_addr_t sector __attribute__ ((unused)),
unsigned offset __attribute__ ((unused)),
unsigned length, void *data)
{
static int call_depth = 0;
grub_uint64_t now;
static grub_uint64_t last_progress_update_time;
grub_file_t file = data;
const char *e;
file->progress_offset += length;
if (call_depth)
return;
e = grub_env_get ("enable_progress_indicator");
if (e && e[0] == '0') {
return;
}
call_depth = 1;
now = grub_get_time_ms ();
if (((now - last_progress_update_time > UPDATE_INTERVAL) &&
(file->progress_offset - file->offset > 0)) ||
(file->progress_offset == file->size))
{
static char buffer[80];
struct grub_term_output *term;
const char *partial_file_name;
unsigned long long percent;
grub_uint64_t current_speed;
if (now - file->last_progress_time < 10)
current_speed = 0;
else
current_speed = grub_divmod64 ((file->progress_offset
- file->last_progress_offset)
* 100ULL * 1000ULL,
now - file->last_progress_time, 0);
if (file->size == 0)
percent = 100;
else
percent = grub_divmod64 (100 * file->progress_offset,
file->size, 0);
/* grub_net_fs_open() saves off partial file structure before name is initialized.
It already saves passed file name in net structure so just use it in this case.
*/
if (file->device->net)
partial_file_name = grub_strrchr (file->device->net->name, '/');
else if (file->name) /* grub_file_open() may leave it as NULL */
partial_file_name = grub_strrchr (file->name, '/');
else
partial_file_name = NULL;
if (partial_file_name)
partial_file_name++;
else
partial_file_name = "";
file->estimated_speed = (file->estimated_speed + current_speed) >> 1;
grub_snprintf (buffer, sizeof (buffer), " [ %.20s %s %llu%% ",
partial_file_name,
grub_get_human_size (file->progress_offset,
GRUB_HUMAN_SIZE_NORMAL),
(unsigned long long) percent);
char *ptr = buffer + grub_strlen (buffer);
grub_snprintf (ptr, sizeof (buffer) - (ptr - buffer), "%s ]",
grub_get_human_size (file->estimated_speed,
GRUB_HUMAN_SIZE_SPEED));
grub_size_t len = grub_strlen (buffer);
FOR_ACTIVE_TERM_OUTPUTS (term)
{
if (term->progress_update_counter++ > term->progress_update_divisor
|| (file->progress_offset == file->size
&& term->progress_update_divisor
!= (unsigned) GRUB_PROGRESS_NO_UPDATE))
{
struct grub_term_coordinate old_pos = grub_term_getxy (term);
struct grub_term_coordinate new_pos = old_pos;
new_pos.x = grub_term_width (term) - len - 1;
grub_term_gotoxy (term, new_pos);
grub_puts_terminal (buffer, term);
grub_term_gotoxy (term, old_pos);
term->progress_update_counter = 0;
if (term->refresh)
term->refresh (term);
}
}
file->last_progress_offset = file->progress_offset;
file->last_progress_time = now;
last_progress_update_time = now;
}
call_depth = 0;
}
GRUB_MOD_INIT(progress)
{
grub_file_progress_hook = grub_file_progress_hook_real;
}
GRUB_MOD_FINI(progress)
{
grub_file_progress_hook = 0;
}
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