blob: a9993182a8262f5fd1017bd4d53c6b3dbb9f06cd (
plain) (
blame)
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
|
/*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <assert.h>
#include <time.h>
#include <errno.h>
#include <rtems/system.h>
#include <rtems/score/isr.h>
#include <rtems/score/thread.h>
#include <rtems/score/tod.h>
#include <rtems/seterr.h>
#include <rtems/posix/time.h>
/*PAGE
*
* 14.2.1 Clocks, P1003.1b-1993, p. 263
*/
int clock_settime(
clockid_t clock_id,
const struct timespec *tp
)
{
struct tm split_time;
TOD_Control tod;
Watchdog_Interval seconds;
assert( tp );
switch ( clock_id ) {
case CLOCK_REALTIME:
(void) gmtime_r( &tp->tv_sec, &split_time );
/*
* Convert the tm structure format to that used by the TOD Handler
*
* NOTE: TOD Handler does not honor leap seconds.
*/
tod.year = split_time.tm_year + 1900; /* RHS is years since 1900 */
tod.month = split_time.tm_mon + 1; /* RHS uses 0-11 */
tod.day = split_time.tm_mday;
tod.hour = split_time.tm_hour;
tod.minute = split_time.tm_min;
tod.second = split_time.tm_sec; /* RHS allows 0-61 for leap seconds */
tod.ticks = (tp->tv_nsec / TOD_NANOSECONDS_PER_MICROSECOND) /
_TOD_Microseconds_per_tick;
if ( !_TOD_Validate( &tod ) )
rtems_set_errno_and_return_minus_one( EINVAL );
/*
* We can't use the tp->tv_sec field because it is based on
* a different EPOCH.
*/
seconds = _TOD_To_seconds( &tod );
_Thread_Disable_dispatch();
_TOD_Set( &tod, seconds );
_Thread_Enable_dispatch();
break;
#ifdef _POSIX_CPUTIME
case CLOCK_PROCESS_CPUTIME:
return POSIX_NOT_IMPLEMENTED();
break;
#endif
#ifdef _POSIX_THREAD_CPUTIME
case CLOCK_THREAD_CPUTIME:
return POSIX_NOT_IMPLEMENTED();
break;
#endif
default:
rtems_set_errno_and_return_minus_one( EINVAL );
}
return 0;
}
|
