blob: 1753ad4408f189fd3768470bd8c7a413a865edba (
plain)
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
|
/*
* Copyright 2014 Vincent Sanders <vince@netsurf-browser.org>
*
* This file is part of libnsutils.
*
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
*/
/**
* \file
* Time operation implementation
*/
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include "nsutils/time.h"
/* exported interface documented in nsutils/time.h */
nsuerror nsu_getmonotonic_ms(uint64_t *current_out)
{
uint64_t current;
static uint64_t prev = 0; /* previous time so we never go backwards */
#if defined(_POSIX_TIMERS) && (_POSIX_TIMERS > 0) && (defined _POSIX_MONOTONIC_CLOCK)
#include <time.h>
struct timespec tp;
clock_gettime(CLOCK_MONOTONIC, &tp);
current = (tp.tv_sec * 1000) + (tp.tv_nsec / 1000000);
#elif defined(riscos)
#include "oslib/os.h"
os_t time;
time = os_read_monotonic_time();
current = time * 10;
#else
#warning "Using dodgy gettimeofday() fallback"
#include <sys/time.h>
/** \todo Implement this properly! */
struct timeval tv;
gettimeofday(&tv, NULL);
current = (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
#endif
/* ensure time never goes backwards */
if (current > prev) {
*current_out = current;
prev = current;
} else {
/** \todo is 10ms really correct or can we calculate a delta going forwards? */
prev += 10;
*current_out = prev;
}
return NSUERROR_OK;
}
|
