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 --
11 -- Copyright (C) 1992-1998, Free Software Foundation, Inc. --
13 -- GNARL is free software; you can redistribute it and/or modify it under --
14 -- terms of the GNU General Public License as published by the Free Soft- --
15 -- ware Foundation; either version 2, or (at your option) any later ver- --
16 -- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
17 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
18 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
19 -- for more details. You should have received a copy of the GNU General --
20 -- Public License distributed with GNARL; see file COPYING. If not, write --
21 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
22 -- MA 02111-1307, USA. --
24 -- As a special exception, if other files instantiate generics from this --
25 -- unit, or you link this unit with other files to produce an executable, --
26 -- this unit does not by itself cause the resulting executable to be --
27 -- covered by the GNU General Public License. This exception does not --
28 -- however invalidate any other reasons why the executable file might be --
29 -- covered by the GNU Public License. --
31 -- GNARL was developed by the GNARL team at Florida State University. --
32 -- Extensive contributions were provided by Ada Core Technologies Inc. --
34 ------------------------------------------------------------------------------
36 package System.Interrupt_Management.Operations is
38 procedure Thread_Block_Interrupt (Interrupt : Interrupt_ID);
39 -- Mask the calling thread for the interrupt
40 pragma Inline (Thread_Block_Interrupt);
42 procedure Thread_Unblock_Interrupt (Interrupt : Interrupt_ID);
43 -- Unmask the calling thread for the interrupt
44 pragma Inline (Thread_Unblock_Interrupt);
46 procedure Set_Interrupt_Mask (Mask : access Interrupt_Mask);
47 -- Set the interrupt mask of the calling thread
48 procedure Set_Interrupt_Mask
49 (Mask : access Interrupt_Mask;
50 OMask : access Interrupt_Mask);
51 -- Set the interrupt mask of the calling thread while returning the
53 pragma Inline (Set_Interrupt_Mask);
55 procedure Get_Interrupt_Mask (Mask : access Interrupt_Mask);
56 -- Get the interrupt mask of the calling thread
57 pragma Inline (Get_Interrupt_Mask);
59 function Interrupt_Wait (Mask : access Interrupt_Mask) return Interrupt_ID;
60 -- Wait for the interrupts specified in Mask and return
61 -- the interrupt received. Upon error it return 0.
62 pragma Inline (Interrupt_Wait);
64 procedure Install_Default_Action (Interrupt : Interrupt_ID);
65 -- Set the sigaction of the Interrupt to default (SIG_DFL).
66 pragma Inline (Install_Default_Action);
68 procedure Install_Ignore_Action (Interrupt : Interrupt_ID);
69 -- Set the sigaction of the Interrupt to ignore (SIG_IGN).
70 pragma Inline (Install_Ignore_Action);
72 procedure Fill_Interrupt_Mask (Mask : access Interrupt_Mask);
73 -- Get a Interrupt_Mask with all the interrupt masked
74 pragma Inline (Fill_Interrupt_Mask);
76 procedure Empty_Interrupt_Mask (Mask : access Interrupt_Mask);
77 -- Get a Interrupt_Mask with all the interrupt unmasked
78 pragma Inline (Empty_Interrupt_Mask);
80 procedure Add_To_Interrupt_Mask
81 (Mask : access Interrupt_Mask;
82 Interrupt : Interrupt_ID);
83 -- Mask the given interrupt in the Interrupt_Mask
84 pragma Inline (Add_To_Interrupt_Mask);
86 procedure Delete_From_Interrupt_Mask
87 (Mask : access Interrupt_Mask;
88 Interrupt : Interrupt_ID);
89 -- Unmask the given interrupt in the Interrupt_Mask
90 pragma Inline (Delete_From_Interrupt_Mask);
93 (Mask : access Interrupt_Mask;
94 Interrupt : Interrupt_ID) return Boolean;
95 -- See if a given interrupt is masked in the Interrupt_Mask
96 pragma Inline (Is_Member);
98 procedure Copy_Interrupt_Mask (X : out Interrupt_Mask; Y : Interrupt_Mask);
99 -- Assigment needed for limited private type Interrupt_Mask.
100 pragma Inline (Copy_Interrupt_Mask);
102 procedure Interrupt_Self_Process (Interrupt : Interrupt_ID);
103 -- raise an Interrupt process-level
104 pragma Inline (Interrupt_Self_Process);
106 -- The following objects serve as constants, but are initialized
107 -- in the body to aid portability. These actually belong to the
108 -- System.Interrupt_Management but since Interrupt_Mask is a
109 -- private type we can not have them declared there.
111 Environment_Mask : aliased Interrupt_Mask;
112 -- This mask represents the mask of Environment task when this package
113 -- is being elaborated, except the signals being
114 -- forced to be unmasked by RTS (items in Keep_Unmasked)
116 All_Tasks_Mask : aliased Interrupt_Mask;
117 -- This is the mask of all tasks created in RTS. Only one task in RTS
118 -- is responsible for masking/unmasking signals (see s-interr.adb).
120 end System.Interrupt_Management.Operations;