1 files changed, 51 insertions, 0 deletions
diff --git a/toys/posix/sleep.c b/toys/posix/sleep.c
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+++ b/toys/posix/sleep.c
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+/* vi: set sw=4 ts=4:
+ *
+ * sleep.c - Wait for a number of seconds.
+ *
+ * Copyright 2007 Rob Landley <rob@landley.net>
+ * Copyright 2012 Georgi Chorbadzhiyski <georgi@unixsol.org>
+ *
+ * See http://www.opengroup.org/onlinepubs/009695399/utilities/sleep.html
+
+USE_SLEEP(NEWTOY(sleep, "<1", TOYFLAG_BIN))
+
+config SLEEP
+	bool "sleep"
+	default y
+	help
+	  usage: sleep SECONDS
+
+	  Wait before exiting.
+
+config SLEEP_FLOAT
+	bool
+	default y
+	depends on SLEEP && TOYBOX_FLOAT
+	help
+	  The delay can be a decimal fraction. An optional suffix can be "m"
+	  (minutes), "h" (hours), "d" (days), or "s" (seconds, the default).
+*/
+
+#include "toys.h"
+
+void sleep_main(void)
+{
+
+	if (!CFG_TOYBOX_FLOAT) toys.exitval = sleep(atol(*toys.optargs));
+	else {
+		char *arg;
+		double d = strtod(*toys.optargs, &arg);
+		struct timespec tv;
+
+		// Parse suffix
+		if (*arg) {
+			int ismhd[]={1,60,3600,86400};
+			char *smhd = "smhd", *c = strchr(smhd, *arg);
+			if (!c) error_exit("Unknown suffix '%c'", *arg);
+			d *= ismhd[c-smhd];
+		}
+
+		tv.tv_nsec=1000000000*(d-(tv.tv_sec = (unsigned long)d));
+		toys.exitval = !!nanosleep(&tv, NULL);
+	}
+}