From 257da5cac07854c89861de5925475b339e8ff71b Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 14 Jun 2010 22:31:04 +0200 Subject: add progression bar function Signed-off-by: Sascha Hauer --- include/progress.h | 15 +++++++++++++ lib/Makefile | 1 + lib/show_progress.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 78 insertions(+) create mode 100644 include/progress.h create mode 100644 lib/show_progress.c diff --git a/include/progress.h b/include/progress.h new file mode 100644 index 0000000000..5c4dd1e775 --- /dev/null +++ b/include/progress.h @@ -0,0 +1,15 @@ +#ifndef __PROGRSS_H +#define __PROGRSS_H + +/* Initialize a progress bar. If max > 0 a one line progress + * bar is printed where 'max' corresponds to 100%. If max == 0 + * a multi line progress bar is printed. + */ +void init_progression_bar(int max); + +/* update a progress bar to a new value. If now < 0 then a + * spinner is printed. + */ +void show_progress(int now); + +#endif /* __PROGRSS_H */ diff --git a/lib/Makefile b/lib/Makefile index 4a33aaa3c0..5afbf132aa 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -30,5 +30,6 @@ obj-y += notifier.o obj-y += copy_file.o obj-y += random.o obj-y += lzo/ +obj-y += show_progress.o obj-$(CONFIG_LZO_DECOMPRESS) += decompress_unlzo.o obj-$(CONFIG_PROCESS_ESCAPE_SEQUENCE) += process_escape_sequence.o diff --git a/lib/show_progress.c b/lib/show_progress.c new file mode 100644 index 0000000000..333f49868a --- /dev/null +++ b/lib/show_progress.c @@ -0,0 +1,62 @@ +/* + * show_progress.c - simple progress bar functions + * + * Copyright (c) 2010 Sascha Hauer , Pengutronix + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program 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 +#include + +#define HASHES_PER_LINE 65 + +static int printed; +static int progress_max; +static int spin; + +void show_progress(int now) +{ + char spinchr[] = "\\|/-"; + + if (now < 0) { + printf("%c\b", spinchr[spin++ % (sizeof(spinchr) - 1)]); + return; + } + + if (progress_max) + now = now * HASHES_PER_LINE / progress_max; + + while (printed < now) { + if (!(printed % HASHES_PER_LINE) && printed) + printf("\n\t"); + printf("#"); + printed++; + } +} + +void init_progression_bar(int max) +{ + printed = 0; + progress_max = max; + spin = 0; + if (progress_max) + printf("\t[%65s]\r\t[", ""); + else + printf("\t"); +} + -- cgit v1.2.3