-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2005, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
-- --
-- GNARL 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. GNARL is distributed in the hope that it will be useful, but WITH- --
+-- ware Foundation; either version 3, 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 GNARL; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- 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. --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
-- --
-- GNARL was developed by the GNARL team at Florida State University. --
-- Extensive contributions were provided by Ada Core Technologies, Inc. --
-- This is a no tasking version of this package
--- This package contains all the GNULL primitives that interface directly
--- with the underlying OS.
+-- This package contains all the GNULL primitives that interface directly with
+-- the underlying OS.
pragma Polling (Off);
--- Turn off polling, we do not want ATC polling to take place during
--- tasking operations. It causes infinite loops and other problems.
-
-with System.Tasking;
--- used for Ada_Task_Control_Block
--- Task_Id
+-- Turn off polling, we do not want ATC polling to take place during tasking
+-- operations. It causes infinite loops and other problems.
with System.Error_Reporting;
--- used for Shutdown
package body System.Task_Primitives.Operations is
pragma Warnings (Off);
-- Turn off warnings since so many unreferenced parameters
- No_Tasking : Boolean;
- -- Comment required here ???
-
----------------
-- Abort_Task --
----------------
-- Check_Exit --
----------------
- -- Dummy version
-
function Check_Exit (Self_ID : ST.Task_Id) return Boolean is
begin
return True;
end Check_No_Locks;
-------------------
+ -- Continue_Task --
+ -------------------
+
+ function Continue_Task (T : ST.Task_Id) return Boolean is
+ begin
+ return False;
+ end Continue_Task;
+
+ -------------------
-- Current_State --
-------------------
-- Finalize_Lock --
-------------------
- procedure Finalize_Lock (L : access Lock) is
+ procedure Finalize_Lock (L : not null access Lock) is
begin
null;
end Finalize_Lock;
- procedure Finalize_Lock (L : access RTS_Lock) is
+ procedure Finalize_Lock (L : not null access RTS_Lock) is
begin
null;
end Finalize_Lock;
----------------
procedure Initialize (Environment_Task : Task_Id) is
+ No_Tasking : Boolean;
begin
- null;
+ No_Tasking :=
+ System.Error_Reporting.Shutdown
+ ("Tasking not implemented on this configuration");
end Initialize;
procedure Initialize (S : in out Suspension_Object) is
procedure Initialize_Lock
(Prio : System.Any_Priority;
- L : access Lock)
+ L : not null access Lock)
is
begin
null;
end Initialize_Lock;
- procedure Initialize_Lock (L : access RTS_Lock; Level : Lock_Level) is
+ procedure Initialize_Lock
+ (L : not null access RTS_Lock; Level : Lock_Level) is
begin
null;
end Initialize_Lock;
-- Read_Lock --
---------------
- procedure Read_Lock (L : access Lock; Ceiling_Violation : out Boolean) is
+ procedure Read_Lock
+ (L : not null access Lock;
+ Ceiling_Violation : out Boolean)
+ is
begin
Ceiling_Violation := False;
end Read_Lock;
return Null_Task;
end Self;
+ -----------------
+ -- Set_Ceiling --
+ -----------------
+
+ procedure Set_Ceiling
+ (L : not null access Lock;
+ Prio : System.Any_Priority)
+ is
+ begin
+ null;
+ end Set_Ceiling;
+
---------------
-- Set_False --
---------------
-- Sleep --
-----------
- procedure Sleep (Self_ID : Task_Id; Reason : System.Tasking.Task_States) is
+ procedure Sleep (Self_ID : Task_Id; Reason : System.Tasking.Task_States) is
begin
null;
end Sleep;
return False;
end Suspend_Task;
+ --------------------
+ -- Stop_All_Tasks --
+ --------------------
+
+ procedure Stop_All_Tasks is
+ begin
+ null;
+ end Stop_All_Tasks;
+
+ ---------------
+ -- Stop_Task --
+ ---------------
+
+ function Stop_Task (T : ST.Task_Id) return Boolean is
+ pragma Unreferenced (T);
+ begin
+ return False;
+ end Stop_Task;
+
------------------------
-- Suspend_Until_True --
------------------------
-- Unlock --
------------
- procedure Unlock (L : access Lock) is
+ procedure Unlock (L : not null access Lock) is
begin
null;
end Unlock;
- procedure Unlock (L : access RTS_Lock; Global_Lock : Boolean := False) is
+ procedure Unlock
+ (L : not null access RTS_Lock;
+ Global_Lock : Boolean := False)
+ is
begin
null;
end Unlock;
-- Write_Lock --
----------------
- procedure Write_Lock (L : access Lock; Ceiling_Violation : out Boolean) is
+ procedure Write_Lock
+ (L : not null access Lock;
+ Ceiling_Violation : out Boolean)
+ is
begin
Ceiling_Violation := False;
end Write_Lock;
procedure Write_Lock
- (L : access RTS_Lock;
+ (L : not null access RTS_Lock;
Global_Lock : Boolean := False)
is
begin
null;
end Yield;
-begin
- -- Can't raise an exception because target independent packages try to
- -- do an Abort_Defer, which gets a memory fault.
-
- No_Tasking :=
- System.Error_Reporting.Shutdown
- ("Tasking not implemented on this configuration");
end System.Task_Primitives.Operations;
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