aboutsummaryrefslogtreecommitdiff
path: root/coreutils/sleep.c
diff options
context:
space:
mode:
Diffstat (limited to 'coreutils/sleep.c')
-rw-r--r--coreutils/sleep.c44
1 files changed, 36 insertions, 8 deletions
diff --git a/coreutils/sleep.c b/coreutils/sleep.c
index 0ffbd16eb..ad2d6b526 100644
--- a/coreutils/sleep.c
+++ b/coreutils/sleep.c
@@ -6,17 +6,48 @@
6 * 6 *
7 * Licensed under GPLv2 or later, see file LICENSE in this source tree. 7 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
8 */ 8 */
9
10/* BB_AUDIT SUSv3 compliant */
11/* BB_AUDIT GNU issues -- fancy version matches except args must be ints. */
12/* http://www.opengroup.org/onlinepubs/007904975/utilities/sleep.html */
13
14/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) 9/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
15 * 10 *
16 * Rewritten to do proper arg and error checking. 11 * Rewritten to do proper arg and error checking.
17 * Also, added a 'fancy' configuration to accept multiple args with 12 * Also, added a 'fancy' configuration to accept multiple args with
18 * time suffixes for seconds, minutes, hours, and days. 13 * time suffixes for seconds, minutes, hours, and days.
19 */ 14 */
15//config:config SLEEP
16//config: bool "sleep"
17//config: default y
18//config: help
19//config: sleep is used to pause for a specified number of seconds.
20//config: It comes in 3 versions:
21//config: - small: takes one integer parameter
22//config: - fancy: takes multiple integer arguments with suffixes:
23//config: sleep 1d 2h 3m 15s
24//config: - fancy with fractional numbers:
25//config: sleep 2.3s 4.5h sleeps for 16202.3 seconds
26//config: Last one is "the most compatible" with coreutils sleep,
27//config: but it adds around 1k of code.
28//config:
29//config:config FEATURE_FANCY_SLEEP
30//config: bool "Enable multiple arguments and s/m/h/d suffixes"
31//config: default y
32//config: depends on SLEEP
33//config: help
34//config: Allow sleep to pause for specified minutes, hours, and days.
35//config:
36//config:config FEATURE_FLOAT_SLEEP
37//config: bool "Enable fractional arguments"
38//config: default y
39//config: depends on FEATURE_FANCY_SLEEP
40//config: help
41//config: Allow for fractional numeric parameters.
42
43/* Do not make this applet NOFORK. It breaks ^C-ing of pauses in shells */
44//applet:IF_SLEEP(APPLET(sleep, BB_DIR_BIN, BB_SUID_DROP))
45
46//kbuild:lib-$(CONFIG_SLEEP) += sleep.o
47
48/* BB_AUDIT SUSv3 compliant */
49/* BB_AUDIT GNU issues -- fancy version matches except args must be ints. */
50/* http://www.opengroup.org/onlinepubs/007904975/utilities/sleep.html */
20 51
21//usage:#define sleep_trivial_usage 52//usage:#define sleep_trivial_usage
22//usage: IF_FEATURE_FANCY_SLEEP("[") "N" IF_FEATURE_FANCY_SLEEP("]...") 53//usage: IF_FEATURE_FANCY_SLEEP("[") "N" IF_FEATURE_FANCY_SLEEP("]...")
@@ -35,9 +66,6 @@
35 66
36#include "libbb.h" 67#include "libbb.h"
37 68
38/* Do not make this applet NOFORK. It breaks ^C-ing of pauses in shells */
39
40
41#if ENABLE_FEATURE_FANCY_SLEEP || ENABLE_FEATURE_FLOAT_SLEEP 69#if ENABLE_FEATURE_FANCY_SLEEP || ENABLE_FEATURE_FLOAT_SLEEP
42static const struct suffix_mult sfx[] = { 70static const struct suffix_mult sfx[] = {
43 { "s", 1 }, 71 { "s", 1 },