blob: 3eb5cde204c7936ae2c2adc252cd6d2726ab53c1 (
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
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
130
|
/**
* @file rtems/rtems/asr.inl
*/
/*
* This include file contains the implemenation of all routines
* associated with the asynchronous signal handler which are inlined.
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifndef __INLINE_ASR_inl
#define __INLINE_ASR_inl
#include <rtems/score/isr.h>
/*PAGE
*
* _ASR_Initialize
*
* DESCRIPTION:
*
* This routine initializes the given RTEMS_ASR information record.
*/
RTEMS_INLINE_ROUTINE void _ASR_Initialize (
ASR_Information *information
)
{
information->is_enabled = TRUE;
information->handler = NULL;
information->mode_set = RTEMS_DEFAULT_MODES;
information->signals_posted = 0;
information->signals_pending = 0;
information->nest_level = 0;
}
/*PAGE
*
* _ASR_Swap_signals
*
* DESCRIPTION:
*
* This routine atomically swaps the pending and posted signal
* sets. This is done when the thread alters its mode in such a
* way that the RTEMS_ASR disable/enable flag changes.
*/
RTEMS_INLINE_ROUTINE void _ASR_Swap_signals (
ASR_Information *information
)
{
rtems_signal_set _signals;
ISR_Level _level;
_ISR_Disable( _level );
_signals = information->signals_pending;
information->signals_pending = information->signals_posted;
information->signals_posted = _signals;
_ISR_Enable( _level );
}
/*PAGE
*
* _ASR_Is_null_handler
*
* DESCRIPTION:
*
* This function returns TRUE if the given asr_handler is NULL and
* FALSE otherwise.
*/
RTEMS_INLINE_ROUTINE boolean _ASR_Is_null_handler (
rtems_asr_entry asr_handler
)
{
return asr_handler == NULL;
}
/*PAGE
*
* _ASR_Are_signals_pending
*
* DESCRIPTION:
*
* This function returns TRUE if there are signals pending in the
* given RTEMS_ASR information record and FALSE otherwise.
*/
RTEMS_INLINE_ROUTINE boolean _ASR_Are_signals_pending (
ASR_Information *information
)
{
return information->signals_posted != 0;
}
/*PAGE
*
* _ASR_Post_signals
*
* DESCRIPTION:
*
* This routine posts the given signals into the signal_set
* passed in. The result is returned to the user in signal_set.
*
* NOTE: This must be implemented as a macro.
*/
RTEMS_INLINE_ROUTINE void _ASR_Post_signals(
rtems_signal_set signals,
rtems_signal_set *signal_set
)
{
ISR_Level _level;
_ISR_Disable( _level );
*signal_set |= signals;
_ISR_Enable( _level );
}
#endif
/* end of include file */
|
