/usr/include/libvisual-0.4/libvisual/lv_time.h is in libvisual-0.4-dev 0.4.0-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | /* Libvisual - The audio visualisation framework.
*
* Copyright (C) 2004, 2005, 2006 Dennis Smit <ds@nerds-incorporated.org>
*
* Authors: Dennis Smit <ds@nerds-incorporated.org>
*
* $Id: lv_time.h,v 1.21 2006/02/05 18:45:57 synap Exp $
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _LV_TIME_H
#define _LV_TIME_H
#include <sys/time.h>
#include <time.h>
#include <libvisual/lv_common.h>
VISUAL_BEGIN_DECLS
#define VISUAL_USEC_PER_SEC 1000000
#define VISUAL_MSEC_PER_SEC 1000
#define VISUAL_TIME(obj) (VISUAL_CHECK_CAST ((obj), VisTime))
#define VISUAL_TIMER(obj) (VISUAL_CHECK_CAST ((obj), VisTimer))
typedef struct _VisTime VisTime;
typedef struct _VisTimer VisTimer;
/**
* The VisTime structure can contain seconds and microseconds for timing purpose.
*/
struct _VisTime {
VisObject object; /**< The VisObject data. */
long tv_sec; /**< seconds. */
long tv_usec; /**< microseconds. */
};
/**
* The VisTimer structure is used for timing using the visual_timer_* methods.
*/
struct _VisTimer {
VisObject object; /**< The VisObject data. */
VisTime start; /**< Private entry to indicate the starting point,
* Shouldn't be read for reliable starting point because
* the visual_timer_continue method changes it's value. */
VisTime stop; /**< Private entry to indicate the stopping point. */
int active; /**< Private entry to indicate if the timer is currently active or inactive. */
};
/* prototypes */
VisTime *visual_time_new (void);
int visual_time_init (VisTime *time_);
int visual_time_get (VisTime *time_);
int visual_time_set (VisTime *time_, long sec, long usec);
int visual_time_difference (VisTime *dest, VisTime *time1, VisTime *time2);
int visual_time_past (VisTime *time_, VisTime *past);
int visual_time_copy (VisTime *dest, VisTime *src);
int visual_time_usleep (unsigned long microseconds);
VisTimer *visual_timer_new (void);
int visual_timer_init (VisTimer *timer);
int visual_timer_reset (VisTimer *timer);
int visual_timer_is_active (VisTimer *timer);
int visual_timer_start (VisTimer *timer);
int visual_timer_stop (VisTimer *timer);
int visual_timer_continue (VisTimer *timer);
int visual_timer_elapsed (VisTimer *timer, VisTime *time_);
int visual_timer_elapsed_msecs (VisTimer *timer);
int visual_timer_elapsed_usecs (VisTimer *timer);
int visual_timer_has_passed (VisTimer *timer, VisTime *time_);
int visual_timer_has_passed_by_values (VisTimer *timer, long sec, long usec);
/* FIXME: does this work everywhere (x86) ? Check the cycle.h that can be found in FFTW,
* also check liboil it's profile header: add powerpc support */
/**
* This function can be used to retrieve the real time stamp counter. This function
* will not check if timestamping is around, the reason for this is because it will make
* the timing less reliable since checking for timestamping gives overhead. You
* must make arrangments for this.
*
* @see visual_cpu_get_tsc
*
* @param lo The lower 32 bits of the timestmap.
* @param hi The higher 32 bits of the timestamp.
*
* @return Nothing.
*/
static inline void visual_timer_tsc_get (uint32_t *lo, uint32_t *hi)
{
#if defined(VISUAL_ARCH_X86) || defined(VISUAL_ARCH_X86_64)
__asm __volatile
("\n\t cpuid"
"\n\t rdtsc"
"\n\t movl %%edx, %0"
"\n\t movl %%eax, %1"
: "=r" (*hi), "=r" (*lo)
:: "memory");
#endif
}
/* FIXME use uint64_t here, make sure type exists */
static inline unsigned long long visual_timer_tsc_get_returned ()
{
uint32_t lo, hi;
visual_timer_tsc_get (&lo, &hi);
return ((unsigned long long) hi << 32) | lo;
}
VISUAL_END_DECLS
#endif /* _LV_TIME_H */
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