1 ------------------------------------------------------------------------------
3 -- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
5 -- S Y S T E M . I N T E R R U P T _ M A N A G E M E N T . --
6 -- O P E R A T I O N S --
10 -- $Revision: 1.4 $ --
12 -- Copyright (C) 1992-1998, Free Software Foundation, Inc. --
14 -- GNARL is free software; you can redistribute it and/or modify it under --
15 -- terms of the GNU General Public License as published by the Free Soft- --
16 -- ware Foundation; either version 2, or (at your option) any later ver- --
17 -- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
18 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
19 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
20 -- for more details. You should have received a copy of the GNU General --
21 -- Public License distributed with GNARL; see file COPYING. If not, write --
22 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
23 -- MA 02111-1307, USA. --
25 -- As a special exception, if other files instantiate generics from this --
26 -- unit, or you link this unit with other files to produce an executable, --
27 -- this unit does not by itself cause the resulting executable to be --
28 -- covered by the GNU General Public License. This exception does not --
29 -- however invalidate any other reasons why the executable file might be --
30 -- covered by the GNU Public License. --
32 -- GNARL was developed by the GNARL team at Florida State University. It is --
33 -- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
34 -- State University (http://www.gnat.com). --
36 ------------------------------------------------------------------------------
38 package System.Interrupt_Management.Operations is
40 procedure Thread_Block_Interrupt (Interrupt : Interrupt_ID);
41 -- Mask the calling thread for the interrupt
42 pragma Inline (Thread_Block_Interrupt);
44 procedure Thread_Unblock_Interrupt (Interrupt : Interrupt_ID);
45 -- Unmask the calling thread for the interrupt
46 pragma Inline (Thread_Unblock_Interrupt);
48 procedure Set_Interrupt_Mask (Mask : access Interrupt_Mask);
49 -- Set the interrupt mask of the calling thread
50 procedure Set_Interrupt_Mask
51 (Mask : access Interrupt_Mask;
52 OMask : access Interrupt_Mask);
53 -- Set the interrupt mask of the calling thread while returning the
55 pragma Inline (Set_Interrupt_Mask);
57 procedure Get_Interrupt_Mask (Mask : access Interrupt_Mask);
58 -- Get the interrupt mask of the calling thread
59 pragma Inline (Get_Interrupt_Mask);
61 function Interrupt_Wait (Mask : access Interrupt_Mask) return Interrupt_ID;
62 -- Wait for the interrupts specified in Mask and return
63 -- the interrupt received. Upon error it return 0.
64 pragma Inline (Interrupt_Wait);
66 procedure Install_Default_Action (Interrupt : Interrupt_ID);
67 -- Set the sigaction of the Interrupt to default (SIG_DFL).
68 pragma Inline (Install_Default_Action);
70 procedure Install_Ignore_Action (Interrupt : Interrupt_ID);
71 -- Set the sigaction of the Interrupt to ignore (SIG_IGN).
72 pragma Inline (Install_Ignore_Action);
74 procedure Fill_Interrupt_Mask (Mask : access Interrupt_Mask);
75 -- Get a Interrupt_Mask with all the interrupt masked
76 pragma Inline (Fill_Interrupt_Mask);
78 procedure Empty_Interrupt_Mask (Mask : access Interrupt_Mask);
79 -- Get a Interrupt_Mask with all the interrupt unmasked
80 pragma Inline (Empty_Interrupt_Mask);
82 procedure Add_To_Interrupt_Mask
83 (Mask : access Interrupt_Mask;
84 Interrupt : Interrupt_ID);
85 -- Mask the given interrupt in the Interrupt_Mask
86 pragma Inline (Add_To_Interrupt_Mask);
88 procedure Delete_From_Interrupt_Mask
89 (Mask : access Interrupt_Mask;
90 Interrupt : Interrupt_ID);
91 -- Unmask the given interrupt in the Interrupt_Mask
92 pragma Inline (Delete_From_Interrupt_Mask);
95 (Mask : access Interrupt_Mask;
96 Interrupt : Interrupt_ID) return Boolean;
97 -- See if a given interrupt is masked in the Interrupt_Mask
98 pragma Inline (Is_Member);
100 procedure Copy_Interrupt_Mask (X : out Interrupt_Mask; Y : Interrupt_Mask);
101 -- Assigment needed for limited private type Interrupt_Mask.
102 pragma Inline (Copy_Interrupt_Mask);
104 procedure Interrupt_Self_Process (Interrupt : Interrupt_ID);
105 -- raise an Interrupt process-level
106 pragma Inline (Interrupt_Self_Process);
108 -- The following objects serve as constants, but are initialized
109 -- in the body to aid portability. These actually belong to the
110 -- System.Interrupt_Management but since Interrupt_Mask is a
111 -- private type we can not have them declared there.
113 Environment_Mask : aliased Interrupt_Mask;
114 -- This mask represents the mask of Environment task when this package
115 -- is being elaborated, except the signals being
116 -- forced to be unmasked by RTS (items in Keep_Unmasked)
118 All_Tasks_Mask : aliased Interrupt_Mask;
119 -- This is the mask of all tasks created in RTS. Only one task in RTS
120 -- is responsible for masking/unmasking signals (see s-interr.adb).
122 end System.Interrupt_Management.Operations;