1 files changed, 101 insertions, 0 deletions
diff --git a/examples/loadables/sleep.c b/examples/loadables/sleep.c
new file mode 100644
index 0000000..fc2203d
--- /dev/null
+++ b/examples/loadables/sleep.c
@@ -0,0 +1,101 @@
+/*
+ * sleep -- sleep for fractions of a second
+ *
+ * usage: sleep seconds[.fraction]
+ */
+
+/*
+   Copyright (C) 1999-2020 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash.
+   Bash is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Bash 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 Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "config.h"
+
+#include "bashtypes.h"
+
+#if defined (TIME_WITH_SYS_TIME)
+#  include <sys/time.h>
+#  include <time.h>
+#else
+#  if defined (HAVE_SYS_TIME_H)
+#    include <sys/time.h>
+#  else
+#    include <time.h>
+#  endif
+#endif
+
+#if defined (HAVE_UNISTD_H)
+#include <unistd.h>
+#endif
+
+#include <stdio.h>
+#include "chartypes.h"
+
+#include "shell.h"
+#include "builtins.h"
+#include "common.h"
+
+int
+sleep_builtin (list)
+WORD_LIST	*list;
+{
+	long	sec, usec;
+	char	*ep;
+	int	r, mul;
+	time_t	t;
+
+	if (list == 0) {
+		builtin_usage();
+		return(EX_USAGE);
+	}
+
+	/* Skip over `--' */
+	if (list->word && ISOPTION (list->word->word, '-'))
+		list = list->next;
+
+	if (*list->word->word == '-' || list->next) {
+		builtin_usage ();
+		return (EX_USAGE);
+	}
+
+    	r = uconvert(list->word->word, &sec, &usec, &ep);
+	/* Maybe postprocess conversion failures here based on EP */
+    		
+    	if (r) {
+		fsleep(sec, usec);
+		QUIT;
+		return(EXECUTION_SUCCESS);
+    	}
+
+	builtin_error("%s: bad sleep interval", list->word->word);
+	return (EXECUTION_FAILURE);
+}
+
+static char *sleep_doc[] = {
+	"Suspend execution for specified period.",
+	""
+	"sleep suspends execution for a minimum of SECONDS[.FRACTION] seconds.",
+	(char *)NULL
+};
+
+struct builtin sleep_struct = {
+	"sleep",
+	sleep_builtin,
+	BUILTIN_ENABLED,
+	sleep_doc,
+	"sleep seconds[.fraction]",
+	0
+};