gcc/ada/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 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  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;