starpu_cailbrate_bus: add --help and --version options.

tools/starpu_calibrate_bus.c

@@ -13,12 +13,60 @@
  *
  * See the GNU Lesser General Public License in COPYING.LGPL for more details.
  */
-
+#include <config.h>
 #include <starpu.h>
 #ifdef __MINGW32__
 #include <windows.h>
 #endif
 
+#define PROGNAME "starpu_calibrate_bus"
+
+static void usage(void)
+{
+		(void) fprintf(stdout,
+"Force a bus calibration.\n\
+\n\
+Usage: " PROGNAME " [OPTION]\n\
+\n\
+Options:\n\
+	-h, --help       display this help and exit\n\
+	-v, --version    output version information and exit\n\
+\n\
+Report bugs to <" PACKAGE_BUGREPORT ">.\n");
+}
+
+static void parse_args(int argc, char **argv)
+{
+	if (argc == 1)
+		return;
+
+	if (argc > 2)
+	{
+		usage();
+		exit(EXIT_FAILURE);
+	}
+
+	if (strcmp(argv[1], "-h") == 0 ||
+	    strcmp(argv[1], "--help") == 0)
+	{
+		usage();
+		exit(EXIT_SUCCESS);
+	}
+	else if (strcmp(argv[1], "-v") == 0 ||
+		 strcmp(argv[1], "--version") == 0)
+	{
+		(void) fprintf(stdout, "%s %d.%d\n",
+			PROGNAME, STARPU_MAJOR_VERSION, STARPU_MINOR_VERSION);
+		exit(EXIT_SUCCESS);
+	}
+	else
+	{
+		(void) fprintf(stderr, "Unknown arg %s\n", argv[1]);
+		exit(EXIT_FAILURE);
+	}
+
+}
+
 int main(int argc, char **argv)
 {
 #ifdef __MINGW32__
@@ -26,6 +74,8 @@ int main(int argc, char **argv)
 	WSAStartup(MAKEWORD(1,0), &wsadata);
 #endif
 
+	parse_args(argc, argv);
+
 	starpu_force_bus_sampling();
 
 	return 0;