Add the guestfish 'time' command.

 ><fs> time sfdisk /dev/sda 0 0 0 ,
 elapsed time: 6.12 seconds

1 files changed, 54 insertions, 0 deletions

diff --git a/fish/time.c b/fish/time.c
new file mode 100644
index 00000000..d2a20669
--- /dev/null
+++ b/fish/time.c
@@ -0,0 +1,54 @@
+/* guestfish - the filesystem interactive shell
+ * Copyright (C) 2009 Red Hat Inc. 
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "fish.h"
+
+int
+do_time (const char *cmd, int argc, char *argv[])
+{
+  struct timeval start_t, end_t;
+  int64_t start_us, end_us, elapsed_us;
+
+  if (argc < 1) {
+    fprintf (stderr, _("use 'time command [args...]'\n"));
+    return -1;
+  }
+
+  gettimeofday (&start_t, NULL);
+
+  if (issue_command (argv[0], &argv[1], NULL) == -1)
+    return -1;
+
+  gettimeofday (&end_t, NULL);
+
+  start_us = (int64_t) start_t.tv_sec * 1000000 + start_t.tv_usec;
+  end_us = (int64_t) end_t.tv_sec * 1000000 + end_t.tv_usec;
+  elapsed_us = end_us - start_us;
+  printf ("elapsed time: %d.%02d seconds\n",
+	  (int) (elapsed_us / 1000000),
+	  (int) ((elapsed_us / 10000) % 100));
+
+  return 0;
+}