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
|
------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
-- --
-- A D A . I N T E R R U P T S --
-- --
-- B o d y --
-- --
-- Copyright (C) 1991-1994, Florida State University --
-- Copyright (C) 1995-2006, AdaCore --
-- --
-- GNARL is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNARL; see file COPYING. If not, write --
-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
-- Boston, MA 02110-1301, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNARL was developed by the GNARL team at Florida State University. --
-- Extensive contributions were provided by Ada Core Technologies, Inc. --
-- --
------------------------------------------------------------------------------
with Unchecked_Conversion;
package body Ada.Interrupts is
package SI renames System.Interrupts;
function To_System is new Unchecked_Conversion
(Parameterless_Handler, SI.Parameterless_Handler);
function To_Ada is new Unchecked_Conversion
(SI.Parameterless_Handler, Parameterless_Handler);
--------------------
-- Attach_Handler --
--------------------
procedure Attach_Handler
(New_Handler : Parameterless_Handler;
Interrupt : Interrupt_ID)
is
begin
SI.Attach_Handler
(To_System (New_Handler), SI.Interrupt_ID (Interrupt), False);
end Attach_Handler;
---------------------
-- Current_Handler --
---------------------
function Current_Handler
(Interrupt : Interrupt_ID) return Parameterless_Handler
is
begin
return To_Ada (SI.Current_Handler (SI.Interrupt_ID (Interrupt)));
end Current_Handler;
--------------------
-- Detach_Handler --
--------------------
procedure Detach_Handler (Interrupt : Interrupt_ID) is
begin
SI.Detach_Handler (SI.Interrupt_ID (Interrupt), False);
end Detach_Handler;
----------------------
-- Exchange_Handler --
----------------------
procedure Exchange_Handler
(Old_Handler : out Parameterless_Handler;
New_Handler : Parameterless_Handler;
Interrupt : Interrupt_ID)
is
H : SI.Parameterless_Handler;
begin
SI.Exchange_Handler
(H, To_System (New_Handler),
SI.Interrupt_ID (Interrupt), False);
Old_Handler := To_Ada (H);
end Exchange_Handler;
-----------------
-- Is_Attached --
-----------------
function Is_Attached (Interrupt : Interrupt_ID) return Boolean is
begin
return SI.Is_Handler_Attached (SI.Interrupt_ID (Interrupt));
end Is_Attached;
-----------------
-- Is_Reserved --
-----------------
function Is_Reserved (Interrupt : Interrupt_ID) return Boolean is
begin
return SI.Is_Reserved (SI.Interrupt_ID (Interrupt));
end Is_Reserved;
---------------
-- Reference --
---------------
function Reference (Interrupt : Interrupt_ID) return System.Address is
begin
return SI.Reference (SI.Interrupt_ID (Interrupt));
end Reference;
end Ada.Interrupts;
|
