5 * Gonzalo Paniagua Javier (gonzalo@novell.com
7 * (C) 2006 Novell, Inc.
9 * Permission is hereby granted, free of charge, to any person obtaining
10 * a copy of this software and associated documentation files (the
11 * "Software"), to deal in the Software without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
45 GTimer *g_timer_new (void)
49 timer = g_new0 (GTimer, 1);
50 g_timer_start (timer);
55 g_timer_destroy (GTimer *timer)
57 g_return_if_fail (timer != NULL);
62 g_timer_start (GTimer *timer)
64 g_return_if_fail (timer != NULL);
66 QueryPerformanceCounter ((LARGE_INTEGER*)&timer->start);
68 gettimeofday (&timer->start, NULL);
69 memset (&timer->stop, 0, sizeof (struct timeval));
75 g_timer_stop (GTimer *timer)
77 g_return_if_fail (timer != NULL);
79 QueryPerformanceCounter ((LARGE_INTEGER*)&timer->stop);
81 gettimeofday (&timer->stop, NULL);
86 g_timer_elapsed (GTimer *timer, gulong *microseconds)
92 if (timer->stop == 0) {
93 QueryPerformanceCounter ((LARGE_INTEGER*)&stop);
99 QueryPerformanceFrequency ((LARGE_INTEGER*)&freq);
100 seconds = 1.0 * (stop - timer->start) / freq;
103 *microseconds = (gulong)(1000000.0 * (stop - timer->start) / freq);
112 g_return_val_if_fail (timer != NULL, 0.0);
114 if (timer->stop.tv_sec == 0 && timer->stop.tv_usec == 0) {
115 gettimeofday (&tv, NULL);
120 usec = (tv.tv_usec) - (timer->start.tv_usec);
121 seconds = tv.tv_sec - timer->start.tv_sec;
127 *microseconds = usec;
129 result = seconds * 1000000 + usec;
130 return (result / 1000000);