shell: added "sleep" command (not built by default)

This adds "sleep" that is used to verify the usleep function. It is not build by default nor by a Kconfig option, because it is not expected to be generally useful. To build, add "CONFIG_CMD_SLEEP=y" to the command line of make. Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

shell: added "sleep" command (not built by default)
This adds "sleep" that is used to verify the usleep function. It is not build by default nor by a Kconfig option, because it is not expected to be generally useful. To build, add "CONFIG_CMD_SLEEP=y" to the command line of make. Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
bccfebd2 · Alessandro Rubini · 3497d157 · bccfebd2 · bccfebd2
Commit bccfebd2 authored Mar 29, 2013 by Alessandro Rubini
Hide whitespace changes
Inline Side-by-side

Showing with 27 additions and 0 deletions

cmd_sleep.c shell/cmd_sleep.c +26 -0

shell.mk shell/shell.mk +1 -0

No files found.
--- a/shell/cmd_sleep.c
+++ b/shell/cmd_sleep.c
+/*
+ * This work is part of the White Rabbit project
+ *
+ * Copyright (C) 2013 CERN (www.cern.ch)
+ * Author: Alessandro Rubini <rubini@gnudd.com>
+ *
+ * Released according to the GNU GPL, version 2 or any later version.
+ */
+#include <wrc.h>
+#include <shell.h>
+
+static int cmd_sleep(const char *args[])
+{
+	int sec = 1;
+
+	if (args[0])
+		fromdec(args[0], &sec);
+	while (sec--)
+		usleep(1000 * 1000);
+	return 0;
+}
+
+DEFINE_WRC_COMMAND(sleep) = {
+	.name = "sleep",
+	.exec = cmd_sleep,
+};
--- a/shell/shell.mk
+++ b/shell/shell.mk
@@ -18,3 +18,4 @@ obj-y += \
 obj-$(CONFIG_ETHERBONE) +=			shell/cmd_ip.o
 obj-$(CONFIG_PPSI_RUNTIME_VERBOSITY) +=		shell/cmd_verbose.o
 obj-$(CONFIG_CMD_CONFIG) +=			shell/cmd_config.o
+obj-$(CONFIG_CMD_SLEEP) +=			shell/cmd_sleep.o