Houston, we have a trunk.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3122 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 68 insertions, 0 deletions

diff --git a/usrp/host/apps/time_stuff.c b/usrp/host/apps/time_stuff.c
new file mode 100644
index 000000000..aa62e9adf
--- /dev/null
+++ b/usrp/host/apps/time_stuff.c
@@ -0,0 +1,68 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2003 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio 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, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "time_stuff.h"
+
+#include <sys/time.h>
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif
+#include <unistd.h>
+
+static double
+timeval_to_secs (struct timeval *tv)
+{
+  return (double) tv->tv_sec + (double) tv->tv_usec * 1e-6;
+}
+
+double
+get_cpu_usage (void)
+{
+#ifdef HAVE_GETRUSAGE
+  struct rusage	ru;
+
+  if (getrusage (RUSAGE_SELF, &ru) != 0)
+    return 0;
+
+  return timeval_to_secs (&ru.ru_utime) + timeval_to_secs (&ru.ru_stime);
+#else
+  return 0;	/* FIXME */
+#endif
+}
+
+/*
+ * return elapsed time (wall time) in seconds
+ */
+double
+get_elapsed_time (void)
+{
+  struct timeval	tv;
+  if (gettimeofday (&tv, 0) != 0)
+    return 0;
+
+  return timeval_to_secs (&tv);
+}
+