diff options
Diffstat (limited to 'grub-core/lib/progress.c')
| -rw-r--r-- | grub-core/lib/progress.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/grub-core/lib/progress.c b/grub-core/lib/progress.c new file mode 100644 index 0000000..4b7cbbc --- /dev/null +++ b/grub-core/lib/progress.c @@ -0,0 +1,145 @@ +/* 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; +} |