root/trunk/libffado/src/libutil/Time.h

Revision 742, 2.7 kB (checked in by ppalmers, 13 years ago)

- Remove some obsolete support files and dirs

- Clean up the license statements in the source files. Everything is

GPL version 3 now.

- Add license and copyright notices to scons scripts

- Clean up some other text files

Line 
1 /*
2  * Copyright (C) 2005-2007 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 3 of the License, or
12  * (at your option) any later version.
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 /*
25  * Copied from the jackd/jackdmp sources
26  * function names changed in order to avoid naming problems when using this in
27  * a jackd backend.
28  */
29
30 /* Original license:
31  *
32  *  Copyright (C) 2001-2003 Paul Davis
33  *  Copyright (C) 2004-2006 Grame
34  *
35  *  This program is free software; you can redistribute it and/or modify
36  *  it under the terms of the GNU General Public License as published by
37  *  the Free Software Foundation; either version 2 of the License, or
38  *  (at your option) any later version.
39  *
40  *  This program is distributed in the hope that it will be useful,
41  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
42  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
43  *  GNU General Public License for more details.
44  *
45  *  You should have received a copy of the GNU General Public License
46  *  along with this program; if not, write to the Free Software
47  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
48  *
49  */
50
51 #ifndef __Time__
52 #define __Time__
53
54 #include <stdio.h>
55 #include <inttypes.h>
56
57 // #define GETCYCLE_TIME
58
59 /**
60  * Type used to represent the value of free running
61  * monotonic clock with units of microseconds.
62  */
63
64 typedef uint64_t ffado_microsecs_t;
65
66
67 #ifdef __cplusplus
68 extern "C"
69 {
70 #endif
71
72
73 #include <unistd.h>
74
75     static inline void FFADOSleep(long usec) {
76         usleep(usec);
77     }
78
79 #ifdef GETCYCLE_TIME
80     #include "cycles.h"
81     extern ffado_microsecs_t __ffado_cpu_mhz;
82     extern ffado_microsecs_t GetMhz();
83     extern void InitTime();
84     static inline ffado_microsecs_t GetMicroSeconds (void) {
85         return get_cycles() / __ffado_cpu_mhz;
86     }
87 #else
88     #include <time.h>
89     extern void InitTime();
90     static inline ffado_microsecs_t GetMicroSeconds (void) {
91         struct timespec ts;
92         clock_gettime(CLOCK_MONOTONIC, &ts);
93         return (ffado_microsecs_t)ts.tv_sec * 1000000LL + ts.tv_nsec / 1000;
94     }
95 #endif
96
97
98 #ifdef __cplusplus
99 }
100 #endif
101
102
103 #endif
104
105
106
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