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-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- G N A T . E X C E P T I O N _ A C T I O N S --
--- --
--- B o d y --
--- --
--- Copyright (C) 2002-2005, Free Software Foundation, Inc. --
--- --
--- GNAT is free software; you can redistribute it and/or modify it under --
--- terms of the GNU General Public License as published by the Free Soft- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
--- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
--- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
--- Boston, MA 02110-1301, USA. --
--- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
--- --
--- GNAT was originally developed by the GNAT team at New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
-with Ada.Unchecked_Conversion;
-with System;
-with System.Soft_Links; use System.Soft_Links;
-with System.Standard_Library; use System.Standard_Library;
-with System.Exception_Table; use System.Exception_Table;
-
-package body GNAT.Exception_Actions is
-
- Global_Action : Exception_Action;
- pragma Import (C, Global_Action, "__gnat_exception_actions_global_action");
- -- Imported from Ada.Exceptions. Any change in the external name needs to
- -- be coordinated with a-except.adb
-
- Raise_Hook_Initialized : Boolean;
- pragma Import
- (Ada, Raise_Hook_Initialized, "__gnat_exception_actions_initialized");
-
- function To_Raise_Action is new Ada.Unchecked_Conversion
- (Exception_Action, Raise_Action);
-
- -- ??? Would be nice to have this in System.Standard_Library
- function To_Data is new Ada.Unchecked_Conversion
- (Exception_Id, Exception_Data_Ptr);
- function To_Id is new Ada.Unchecked_Conversion
- (Exception_Data_Ptr, Exception_Id);
-
- ----------------------------
- -- Register_Global_Action --
- ----------------------------
-
- procedure Register_Global_Action (Action : Exception_Action) is
- begin
- Lock_Task.all;
- Global_Action := Action;
- Unlock_Task.all;
- end Register_Global_Action;
-
- ------------------------
- -- Register_Id_Action --
- ------------------------
-
- procedure Register_Id_Action
- (Id : Exception_Id;
- Action : Exception_Action)
- is
- begin
- if Id = Null_Id then
- raise Program_Error;
- end if;
-
- Lock_Task.all;
- To_Data (Id).Raise_Hook := To_Raise_Action (Action);
- Raise_Hook_Initialized := True;
- Unlock_Task.all;
- end Register_Id_Action;
-
- ---------------
- -- Core_Dump --
- ---------------
-
- procedure Core_Dump (Occurrence : Exception_Occurrence) is separate;
-
- ----------------
- -- Name_To_Id --
- ----------------
-
- function Name_To_Id (Name : String) return Exception_Id is
- begin
- return To_Id (Internal_Exception (Name, False));
- end Name_To_Id;
-
- ---------------------------------
- -- Registered_Exceptions_Count --
- ---------------------------------
-
- function Registered_Exceptions_Count return Natural renames
- System.Exception_Table.Registered_Exceptions_Count;
-
- -------------------------------
- -- Get_Registered_Exceptions --
- -------------------------------
- -- This subprogram isn't an iterator to avoid concurrency problems,
- -- since the exceptions are registered dynamically. Since we have to lock
- -- the runtime while computing this array, this means that any callback in
- -- an active iterator would be unable to access the runtime.
-
- procedure Get_Registered_Exceptions
- (List : out Exception_Id_Array;
- Last : out Integer)
- is
- Ids : Exception_Data_Array (List'Range);
- begin
- Get_Registered_Exceptions (Ids, Last);
-
- for L in List'First .. Last loop
- List (L) := To_Id (Ids (L));
- end loop;
- end Get_Registered_Exceptions;
-
-end GNAT.Exception_Actions;