Remove whitespace at end of lines, step 2.
[openocd.git] / src / helper / time_support.c
1 /***************************************************************************
2 * Copyright (C) 2006 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 √ėyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * Copyright (C) 2008 by Spencer Oliver *
9 * spen@spen-soft.co.uk *
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 * This program is distributed in the hope that it will be useful, *
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
19 * GNU General Public License for more details. *
20 * *
21 * You should have received a copy of the GNU General Public License *
22 * along with this program; if not, write to the *
23 * Free Software Foundation, Inc., *
24 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
25 ***************************************************************************/
26 #ifdef HAVE_CONFIG_H
27 #include "config.h"
28 #endif
29
30 #include "time_support.h"
31 #include "log.h"
32
33
34 /* calculate difference between two struct timeval values */
35 int timeval_subtract(struct timeval *result, struct timeval *x, struct timeval *y)
36 {
37 if (x->tv_usec < y->tv_usec)
38 {
39 int nsec = (y->tv_usec - x->tv_usec) / 1000000 + 1;
40 y->tv_usec -= 1000000 * nsec;
41 y->tv_sec += nsec;
42 }
43 if (x->tv_usec - y->tv_usec > 1000000) {
44 int nsec = (x->tv_usec - y->tv_usec) / 1000000;
45 y->tv_usec += 1000000 * nsec;
46 y->tv_sec -= nsec;
47 }
48
49 result->tv_sec = x->tv_sec - y->tv_sec;
50 result->tv_usec = x->tv_usec - y->tv_usec;
51
52 /* Return 1 if result is negative. */
53 return x->tv_sec < y->tv_sec;
54 }
55
56 /* add two struct timeval values */
57 int timeval_add(struct timeval *result, struct timeval *x, struct timeval *y)
58 {
59 result->tv_sec = x->tv_sec + y->tv_sec;
60
61 result->tv_usec = x->tv_usec + y->tv_usec;
62
63 while (result->tv_usec > 1000000)
64 {
65 result->tv_usec -= 1000000;
66 result->tv_sec++;
67 }
68
69 return 0;
70 }
71
72 int timeval_add_time(struct timeval *result, int sec, int usec)
73 {
74 result->tv_sec += sec;
75 result->tv_usec += usec;
76
77 while (result->tv_usec > 1000000)
78 {
79 result->tv_usec -= 1000000;
80 result->tv_sec++;
81 }
82
83 return 0;
84 }
85
86 void duration_start_measure(duration_t *duration)
87 {
88 gettimeofday(&duration->start, NULL);
89 }
90
91 int duration_stop_measure(duration_t *duration, char **text)
92 {
93 struct timeval end;
94
95 gettimeofday(&end, NULL);
96
97 timeval_subtract(&duration->duration, &end, &duration->start);
98
99 if (text)
100 {
101 float t;
102 t = duration->duration.tv_sec;
103 t += (float)duration->duration.tv_usec/1000000.0;
104 *text = malloc(100);
105 snprintf(*text, 100, "%fs", t);
106 }
107
108 return ERROR_OK;
109 }
110
111 long long timeval_ms()
112 {
113 struct timeval now;
114 long long t = 0;
115 gettimeofday(&now, NULL);
116
117 t += now.tv_usec/1000;
118 t += now.tv_sec*1000;
119
120 return t;
121 }