gcc/ada/5ointerr.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                 GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS              --
   4 --                                                                          --
   5 --                     S Y S T E M . I N T E R R U P T S                    --
   6 --                                                                          --
   7 --                                  B o d y                                 --
   8 --                                                                          --
   9 --                             $Revision: 1.5 $
  10 --                                                                          --
  11 --            Copyright (C) 1991-2000 Florida State University              --
  12 --                                                                          --
  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.                                                      --
  23 --                                                                          --
  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.                                      --
  30 --                                                                          --
  31 -- GNARL was developed by the GNARL team at Florida State University. It is --
  32 -- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
  33 -- State University (http://www.gnat.com).                                  --
  34 --                                                                          --
  35 ------------------------------------------------------------------------------
  36
  37 --  This is an OS/2 version of this package.
  38
  39 --  This version is a stub, for systems that
  40 --  do not support interrupts (or signals).
  41
  42 with Ada.Exceptions;
  43
  44 package body System.Interrupts is
  45
  46    use System.Tasking;
  47
  48    -----------------------
  49    -- Local Subprograms --
  50    -----------------------
  51
  52    procedure Unimplemented;
  53    --  This procedure raises a Program_Error with an appropriate message
  54    --  indicating that an unimplemented feature has been used.
  55
  56    --------------------
  57    -- Attach_Handler --
  58    --------------------
  59
  60    procedure Attach_Handler
  61      (New_Handler : in Parameterless_Handler;
  62       Interrupt   : in Interrupt_ID;
  63       Static      : in Boolean := False)
  64    is
  65    begin
  66       Unimplemented;
  67    end Attach_Handler;
  68
  69    -----------------------------
  70    -- Bind_Interrupt_To_Entry --
  71    -----------------------------
  72
  73    procedure Bind_Interrupt_To_Entry
  74      (T       : Task_ID;
  75       E       : Task_Entry_Index;
  76       Int_Ref : System.Address)
  77    is
  78    begin
  79       Unimplemented;
  80    end Bind_Interrupt_To_Entry;
  81
  82    ---------------------
  83    -- Block_Interrupt --
  84    ---------------------
  85
  86    procedure Block_Interrupt (Interrupt : Interrupt_ID) is
  87    begin
  88       Unimplemented;
  89    end Block_Interrupt;
  90
  91    ---------------------
  92    -- Current_Handler --
  93    ---------------------
  94
  95    function Current_Handler
  96      (Interrupt : Interrupt_ID)
  97       return      Parameterless_Handler
  98    is
  99    begin
 100       Unimplemented;
 101       return null;
 102    end Current_Handler;
 103
 104    --------------------
 105    -- Detach_Handler --
 106    --------------------
 107
 108    procedure Detach_Handler
 109      (Interrupt : in Interrupt_ID;
 110       Static    : in Boolean := False)
 111    is
 112    begin
 113       Unimplemented;
 114    end Detach_Handler;
 115
 116    ------------------------------
 117    -- Detach_Interrupt_Entries --
 118    ------------------------------
 119
 120    procedure Detach_Interrupt_Entries (T : Task_ID) is
 121    begin
 122       Unimplemented;
 123    end Detach_Interrupt_Entries;
 124
 125    ----------------------
 126    -- Exchange_Handler --
 127    ----------------------
 128
 129    procedure Exchange_Handler
 130      (Old_Handler : out Parameterless_Handler;
 131       New_Handler : in Parameterless_Handler;
 132       Interrupt   : in Interrupt_ID;
 133       Static      : in Boolean := False)
 134    is
 135    begin
 136       Old_Handler := null;
 137       Unimplemented;
 138    end Exchange_Handler;
 139
 140    --------------
 141    -- Finalize --
 142    --------------
 143
 144    procedure Finalize (Object : in out Static_Interrupt_Protection) is
 145    begin
 146       Unimplemented;
 147    end Finalize;
 148
 149    -------------------------------------
 150    -- Has_Interrupt_Or_Attach_Handler --
 151    -------------------------------------
 152
 153    function Has_Interrupt_Or_Attach_Handler
 154      (Object : access Dynamic_Interrupt_Protection)
 155       return   Boolean
 156    is
 157    begin
 158       Unimplemented;
 159       return True;
 160    end Has_Interrupt_Or_Attach_Handler;
 161
 162    function Has_Interrupt_Or_Attach_Handler
 163      (Object : access Static_Interrupt_Protection)
 164       return   Boolean
 165    is
 166    begin
 167       Unimplemented;
 168       return True;
 169    end Has_Interrupt_Or_Attach_Handler;
 170
 171    ----------------------
 172    -- Ignore_Interrupt --
 173    ----------------------
 174
 175    procedure Ignore_Interrupt (Interrupt : Interrupt_ID) is
 176    begin
 177       Unimplemented;
 178    end Ignore_Interrupt;
 179
 180    ----------------------
 181    -- Install_Handlers --
 182    ----------------------
 183
 184    procedure Install_Handlers
 185      (Object       : access Static_Interrupt_Protection;
 186       New_Handlers : in New_Handler_Array)
 187    is
 188    begin
 189       Unimplemented;
 190    end Install_Handlers;
 191
 192    ----------------
 193    -- Is_Blocked --
 194    ----------------
 195
 196    function Is_Blocked (Interrupt : Interrupt_ID) return Boolean is
 197    begin
 198       Unimplemented;
 199       return True;
 200    end Is_Blocked;
 201
 202    -----------------------
 203    -- Is_Entry_Attached --
 204    -----------------------
 205
 206    function Is_Entry_Attached (Interrupt : Interrupt_ID) return Boolean is
 207    begin
 208       Unimplemented;
 209       return True;
 210    end Is_Entry_Attached;
 211
 212    -------------------------
 213    -- Is_Handler_Attached --
 214    -------------------------
 215
 216    function Is_Handler_Attached (Interrupt : Interrupt_ID) return Boolean is
 217    begin
 218       Unimplemented;
 219       return True;
 220    end Is_Handler_Attached;
 221
 222    ----------------
 223    -- Is_Ignored --
 224    ----------------
 225
 226    function Is_Ignored (Interrupt : Interrupt_ID) return Boolean is
 227    begin
 228       Unimplemented;
 229       return True;
 230    end Is_Ignored;
 231
 232    -----------------
 233    -- Is_Reserved --
 234    -----------------
 235
 236    function Is_Reserved (Interrupt : Interrupt_ID) return Boolean is
 237    begin
 238       Unimplemented;
 239       return True;
 240    end Is_Reserved;
 241
 242    ---------------
 243    -- Reference --
 244    ---------------
 245
 246    function Reference (Interrupt : Interrupt_ID) return System.Address is
 247    begin
 248       Unimplemented;
 249       return Interrupt'Address;
 250    end Reference;
 251
 252    --------------------------------
 253    -- Register_Interrupt_Handler --
 254    --------------------------------
 255
 256    procedure Register_Interrupt_Handler
 257      (Handler_Addr : System.Address)
 258    is
 259    begin
 260       Unimplemented;
 261    end Register_Interrupt_Handler;
 262
 263    -----------------------
 264    -- Unblock_Interrupt --
 265    -----------------------
 266
 267    procedure Unblock_Interrupt (Interrupt : Interrupt_ID) is
 268    begin
 269       Unimplemented;
 270    end Unblock_Interrupt;
 271
 272    ------------------
 273    -- Unblocked_By --
 274    ------------------
 275
 276    function Unblocked_By (Interrupt : Interrupt_ID)
 277      return System.Tasking.Task_ID is
 278    begin
 279       Unimplemented;
 280       return null;
 281    end Unblocked_By;
 282
 283    ------------------------
 284    -- Unignore_Interrupt --
 285    ------------------------
 286
 287    procedure Unignore_Interrupt (Interrupt : Interrupt_ID) is
 288    begin
 289       Unimplemented;
 290    end Unignore_Interrupt;
 291
 292    -------------------
 293    -- Unimplemented; --
 294    -------------------
 295
 296    procedure Unimplemented is
 297    begin
 298       Ada.Exceptions.Raise_Exception
 299         (Program_Error'Identity, "interrupts/signals not implemented");
 300       raise Program_Error;
 301    end Unimplemented;
 302
 303 end System.Interrupts;