gcc/ada/5ytiitho.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --       S Y S T E M . T H R E A D S . I N I T I A L I Z A T I O N .        --
   6 --                I N I T I A L I Z E _ T A S K _ H O O K S                 --
   7 --                                                                          --
   8 --                                 B o d y                                  --
   9 --                                                                          --
  10 --          Copyright (C) 1992-2003 Free Software Foundation, Inc.          --
  11 --                                                                          --
  12 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  13 -- terms of the  GNU General Public License as published  by the Free Soft- --
  14 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  15 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  16 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  17 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  18 -- for  more details.  You should have  received  a copy of the GNU General --
  19 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  20 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  21 -- MA 02111-1307, USA.                                                      --
  22 --                                                                          --
  23 -- As a special exception,  if other files  instantiate  generics from this --
  24 -- unit, or you link  this unit with other files  to produce an executable, --
  25 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  26 -- covered  by the  GNU  General  Public  License.  This exception does not --
  27 -- however invalidate  any other reasons why  the executable file  might be --
  28 -- covered by the  GNU Public License.                                      --
  29 --                                                                          --
  30 -- GNAT was originally developed  by the GNAT team at  New York University. --
  31 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  32 --                                                                          --
  33 ------------------------------------------------------------------------------
  34
  35 --  This is the VxWorks AE 653 version of this procedure
  36
  37 separate (System.Threads.Initialization)
  38
  39 procedure Initialize_Task_Hooks is
  40
  41    --  When defining the following routines for export in an AE 1.1
  42    --  simulation of AE653, Interfaces.C.int may be used for the
  43    --  parameters of FUNCPTR.
  44    type FUNCPTR is access function (T : OSI.Thread_Id) return OSI.STATUS;
  45
  46    --------------------------------
  47    -- Imported vThreads Routines --
  48    --------------------------------
  49
  50    procedure procCreateHookAdd (createHookFunction : FUNCPTR);
  51    pragma Import (C, procCreateHookAdd, "procCreateHookAdd");
  52    --  Registers task registration routine for AE653
  53
  54    procedure procStartHookAdd (StartHookFunction : FUNCPTR);
  55    pragma Import (C, procStartHookAdd, "procStartHookAdd");
  56    --  Registers task restart routine for AE653
  57
  58    Result : OSI.STATUS;
  59 begin
  60    --  Register the exported routines with the vThreads ARINC API
  61    procCreateHookAdd (Register'Access);
  62    procStartHookAdd (Reset_TSD'Access);
  63    --  Register the environment task
  64    Result := Register (OSI.taskIdSelf);
  65    pragma Assert (Result /= -1);
  66 end Initialize_Task_Hooks;