*
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
/* BB_AUDIT SUSv3 compliant */
* time suffixes for seconds, minutes, hours, and days.
*/
+//usage:#define sleep_trivial_usage
+//usage: IF_FEATURE_FANCY_SLEEP("[") "N" IF_FEATURE_FANCY_SLEEP("]...")
+//usage:#define sleep_full_usage "\n\n"
+//usage: IF_NOT_FEATURE_FANCY_SLEEP("Pause for N seconds")
+//usage: IF_FEATURE_FANCY_SLEEP(
+//usage: "Pause for a time equal to the total of the args given, where each arg can\n"
+//usage: "have an optional suffix of (s)econds, (m)inutes, (h)ours, or (d)ays")
+//usage:
+//usage:#define sleep_example_usage
+//usage: "$ sleep 2\n"
+//usage: "[2 second delay results]\n"
+//usage: IF_FEATURE_FANCY_SLEEP(
+//usage: "$ sleep 1d 3h 22m 8s\n"
+//usage: "[98528 second delay results]\n")
+
#include "libbb.h"
-/* This is a NOFORK applet. Be very careful! */
+/* Do not make this applet NOFORK. It breaks ^C-ing of pauses in shells */
-#if ENABLE_FEATURE_FANCY_SLEEP
+#if ENABLE_FEATURE_FANCY_SLEEP || ENABLE_FEATURE_FLOAT_SLEEP
static const struct suffix_mult sfx[] = {
{ "s", 1 },
{ "m", 60 },
{ "h", 60*60 },
{ "d", 24*60*60 },
- { }
+ { "", 0 }
};
#endif
int sleep_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int sleep_main(int argc ATTRIBUTE_UNUSED, char **argv)
+int sleep_main(int argc UNUSED_PARAM, char **argv)
{
+#if ENABLE_FEATURE_FLOAT_SLEEP
+ double duration;
+ struct timespec ts;
+#else
unsigned duration;
+#endif
++argv;
if (!*argv)
bb_show_usage();
-#if ENABLE_FEATURE_FANCY_SLEEP
+#if ENABLE_FEATURE_FLOAT_SLEEP
+# if ENABLE_LOCALE_SUPPORT
+ /* undo busybox.c setlocale */
+ setlocale(LC_NUMERIC, "C");
+# endif
duration = 0;
do {
- duration += xatoul_range_sfx(*argv, 0, UINT_MAX-duration, sfx);
+ char *arg = *argv;
+ if (strchr(arg, '.')) {
+ double d;
+ char *pp;
+ int len = strspn(arg, "0123456789.");
+ char sv = arg[len];
+ arg[len] = '\0';
+ errno = 0;
+ d = strtod(arg, &pp);
+ if (errno || *pp)
+ bb_show_usage();
+ arg += len;
+ *arg-- = sv;
+ sv = *arg;
+ *arg = '1';
+ duration += d * xatoul_sfx(arg, sfx);
+ *arg = sv;
+ } else {
+ duration += xatoul_sfx(arg, sfx);
+ }
} while (*++argv);
-#else /* FEATURE_FANCY_SLEEP */
+ ts.tv_sec = MAXINT(typeof(ts.tv_sec));
+ ts.tv_nsec = 0;
+ if (duration >= 0 && duration < ts.tv_sec) {
+ ts.tv_sec = duration;
+ ts.tv_nsec = (duration - ts.tv_sec) * 1000000000;
+ }
+ do {
+ errno = 0;
+ nanosleep(&ts, &ts);
+ } while (errno == EINTR);
- duration = xatou(*argv);
+#elif ENABLE_FEATURE_FANCY_SLEEP
-#endif /* FEATURE_FANCY_SLEEP */
+ duration = 0;
+ do {
+ duration += xatou_range_sfx(*argv, 0, UINT_MAX - duration, sfx);
+ } while (*++argv);
+ sleep(duration);
- if (sleep(duration)) {
- bb_perror_nomsg_and_die();
- }
+#else /* simple */
+
+ duration = xatou(*argv);
+ sleep(duration);
+ // Off. If it's really needed, provide example why
+ //if (sleep(duration)) {
+ // bb_perror_nomsg_and_die();
+ //}
+
+#endif
return EXIT_SUCCESS;
}