File : g-signal.ads
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- G N A T . S I G N A L S --
6 -- --
7 -- S p e c --
8 -- --
9 -- Copyright (C) 2003-2009, Free Software Foundation, Inc. --
10 -- --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
17 -- --
18 -- --
19 -- --
20 -- --
21 -- --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
26 -- --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 -- This package provides operations for querying and setting the blocked
33 -- status of signals.
34
35 -- This package is supported only on targets where Ada.Interrupts.Interrupt_ID
36 -- corresponds to software signals on the target, and where System.Interrupts
37 -- provides the ability to block and unblock signals.
38
39 with Ada.Interrupts;
40
41 package GNAT.Signals is
42
43 procedure Block_Signal (Signal : Ada.Interrupts.Interrupt_ID);
44 -- Block "Signal" at the process level
45
46 procedure Unblock_Signal (Signal : Ada.Interrupts.Interrupt_ID);
47 -- Unblock "Signal" at the process level
48
49 function Is_Blocked (Signal : Ada.Interrupts.Interrupt_ID) return Boolean;
50 -- "Signal" blocked at the process level?
51
52 end GNAT.Signals;