Overhaul time support API

[openocd.git] / src / helper / time_support.c

diff --git a/src/helper/time_support.c b/src/helper/time_support.c
index 5a7869d92ebf9ee8ebd4690f87f2ea69e0ad0159..9b86e52fe9ec224fb909b166e03e52a974baf347 100644 (file)
--- a/src/helper/time_support.c
+++ b/src/helper/time_support.c
@@ -2,6 +2,12 @@
  *   Copyright (C) 2006 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
+ *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
+ *   oyvind.harboe@zylin.com                                               *
+ *                                                                         *
+ *   Copyright (C) 2008 by Spencer Oliver                                  *
+ *   spen@spen-soft.co.uk                                                  *
+ *                                                                         *
  *   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     *
@@ -17,16 +23,12 @@
  *   Free Software Foundation, Inc.,                                       *
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
+#ifdef HAVE_CONFIG_H
 #include "config.h"
+#endif
 
 #include "time_support.h"
 
-#include <sys/time.h>
-#include <time.h>
-
-int timeval_subtract(struct timeval *result, struct timeval *x, struct timeval *y);
-int timeval_add(struct timeval *result, struct timeval *x, struct timeval *y);
-int timeval_add_time(struct timeval *result, int sec, int usec);
 
 /* calculate difference between two struct timeval values */
 int timeval_subtract(struct timeval *result, struct timeval *x, struct timeval *y)
@@ -54,15 +56,15 @@ int timeval_subtract(struct timeval *result, struct timeval *x, struct timeval *
 int timeval_add(struct timeval *result, struct timeval *x, struct timeval *y)
 {
        result->tv_sec = x->tv_sec + y->tv_sec;
-       
+
        result->tv_usec = x->tv_usec + y->tv_usec;
-       
+
        while (result->tv_usec > 1000000)
        {
                result->tv_usec -= 1000000;
                result->tv_sec++;
        }
-       
+
        return 0;
 }
 
@@ -70,13 +72,50 @@ int timeval_add_time(struct timeval *result, int sec, int usec)
 {
        result->tv_sec += sec;
        result->tv_usec += usec;
-       
+
        while (result->tv_usec > 1000000)
        {
                result->tv_usec -= 1000000;
                result->tv_sec++;
        }
-       
+
        return 0;
 }
 
+int duration_start(struct duration *duration)
+{
+       return gettimeofday(&duration->start, NULL);
+}
+
+int duration_measure(struct duration *duration)
+{
+       struct timeval end;
+       int retval = gettimeofday(&end, NULL);
+       if (0 == retval)
+               timeval_subtract(&duration->elapsed, &end, &duration->start);
+       return retval;
+}
+
+float duration_elapsed(struct duration *duration)
+{
+       float t = duration->elapsed.tv_sec;
+       t += (float)duration->elapsed.tv_usec / 1000000.0;
+       return t;
+}
+
+float duration_kbps(struct duration *duration, size_t count)
+{
+       return count / (1024.0 * duration_elapsed(duration));
+}
+
+long long timeval_ms()
+{
+       struct timeval now;
+       long long t = 0;
+       gettimeofday(&now, NULL);
+
+       t += now.tv_usec/1000;
+       t += now.tv_sec*1000;
+
+       return t;
+}