root/trunk/libffado/src/libutil/SystemTimeSource.cpp

Revision 864, 2.1 kB (checked in by ppalmers, 16 years ago)

update license to GPLv2 or GPLv3 instead of GPLv2 or any later version. Update copyrights to reflect the new year

Line 
1 /*
2  * Copyright (C) 2005-2008 by Pieter Palmers
3  *
4  * This file is part of FFADO
5  * FFADO = Free Firewire (pro-)audio drivers for linux
6  *
7  * FFADO is based upon FreeBoB.
8  *
9  * This program is free software: you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation, either version 2 of the License, or
12  * (at your option) version 3 of the License.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
21  *
22  */
23
24 #include "SystemTimeSource.h"
25 #include "Time.h"
26
27 // needed for clock_nanosleep
28 #ifndef _GNU_SOURCE
29     #define _GNU_SOURCE
30 #endif
31
32 #include <time.h>
33
34 namespace Util {
35
36 IMPL_DEBUG_MODULE( SystemTimeSource, SystemTimeSource, DEBUG_LEVEL_NORMAL );
37
38 SystemTimeSource::SystemTimeSource() {
39 }
40
41 SystemTimeSource::~SystemTimeSource() {
42 }
43
44 void
45 SystemTimeSource::SleepUsecRelative(ffado_microsecs_t usecs) {
46     //usleep(usecs);
47     struct timespec ts;
48     ts.tv_sec = usecs / (1000000LL);
49     ts.tv_nsec = (usecs % (1000000LL)) * 1000LL;
50     clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL);
51 }
52
53 void
54 SystemTimeSource::SleepUsecAbsolute(ffado_microsecs_t wake_at_usec) {
55     struct timespec ts;
56     ts.tv_sec = wake_at_usec / (1000000LL);
57     ts.tv_nsec = (wake_at_usec % (1000000LL)) * 1000LL;
58     clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, &ts, NULL);
59 }
60
61 ffado_microsecs_t SystemTimeSource::getCurrentTime() {
62 //     struct timeval tv;
63 //     gettimeofday(&tv, NULL);
64 //     return tv.tv_sec * 1000000ULL + tv.tv_usec;
65     struct timespec ts;
66     clock_gettime(CLOCK_REALTIME, &ts);
67     return (ffado_microsecs_t)(ts.tv_sec * 1000000LL + ts.tv_nsec / 1000LL);
68 }
69
70 ffado_microsecs_t SystemTimeSource::getCurrentTimeAsUsecs() {
71     return getCurrentTime();
72 }
73
74 } // end of namespace Util
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