This patch does probably too much, but it's hard (and very cumbersome/time consuming) to break it out. What is does is this: * each command has one short description, e.g. "list MUX configuration" * made sure the short descriptions start lowercase * each command has one usage. That string contains just the options, e.g. "[-npn]". It's not part of the long help text. * that is, it doesn't say "[OPTIONS]" anymore, every usable option is listed by character in this (short) option string (the long description is in the long help text, as before) * help texts have been reworked, to make them - sometimes smaller - sometimes describe the options better - more often present themselves in a nicer format * all long help texts are now created with BUSYBOX_CMD_HELP_ macros, no more 'static const __maybe_unused char cmd_foobar_help[]' * made sure the long help texts starts uppercase * because cmdtp->name and cmdtp->opts together provide the new usage, all "Usage: foobar" texts have been removed from the long help texts * BUSYBOX_CMD_HELP_TEXT() provides the trailing newline by itself, this is nicer in the source code * BUSYBOX_CMD_HELP_OPT() provides the trailing newline by itself * made sure no line gets longer than 77 characters * delibertely renamed cmdtp->usage, so that we can get compile-time errors (e.g. in out-of-tree modules that use register_command() * the 'help' command can now always emit the usage, even without compiled long help texts * 'help -v' gives a list of commands with their short description, this is similar like the old "help" command before my patchset * 'help -a' gives out help of all commands Signed-off-by: Holger Schurig <holgerschurig@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/*
|
|
* sleep.c - delay execution
|
|
*
|
|
* Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, 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.
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <complete.h>
|
|
#include <clock.h>
|
|
|
|
static int do_sleep(int argc, char *argv[])
|
|
{
|
|
uint64_t start;
|
|
ulong delay;
|
|
|
|
if (argc != 2)
|
|
return COMMAND_ERROR_USAGE;
|
|
|
|
delay = simple_strtoul(argv[1], NULL, 10);
|
|
|
|
start = get_time_ns();
|
|
while (!is_timeout(start, delay * SECOND)) {
|
|
if (ctrlc())
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
BAREBOX_CMD_START(sleep)
|
|
.cmd = do_sleep,
|
|
BAREBOX_CMD_DESC("delay execution for n seconds")
|
|
BAREBOX_CMD_OPTS("SECONDS")
|
|
BAREBOX_CMD_GROUP(CMD_GRP_SCRIPT)
|
|
BAREBOX_CMD_COMPLETE(command_var_complete)
|
|
BAREBOX_CMD_END
|