diff options
Diffstat (limited to 'gcc-4.8/gcc/ada/a-taster.adb')
-rw-r--r-- | gcc-4.8/gcc/ada/a-taster.adb | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/gcc-4.8/gcc/ada/a-taster.adb b/gcc-4.8/gcc/ada/a-taster.adb deleted file mode 100644 index c4b4aaa81..000000000 --- a/gcc-4.8/gcc/ada/a-taster.adb +++ /dev/null @@ -1,191 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME COMPONENTS -- --- -- --- A D A . T A S K _ T E R M I N A T I O N -- --- -- --- B o d y -- --- -- --- Copyright (C) 2005-2009, 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 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. -- --- -- --- 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/>. -- --- -- --- GNAT was originally developed by the GNAT team at New York University. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - -with System.Tasking; -with System.Task_Primitives.Operations; -with System.Parameters; -with System.Soft_Links; - -with Ada.Unchecked_Conversion; - -package body Ada.Task_Termination is - - use type Ada.Task_Identification.Task_Id; - - package STPO renames System.Task_Primitives.Operations; - package SSL renames System.Soft_Links; - - use System.Parameters; - - ----------------------- - -- Local subprograms -- - ----------------------- - - function To_TT is new Ada.Unchecked_Conversion - (System.Tasking.Termination_Handler, Termination_Handler); - - function To_ST is new Ada.Unchecked_Conversion - (Termination_Handler, System.Tasking.Termination_Handler); - - function To_Task_Id is new Ada.Unchecked_Conversion - (Ada.Task_Identification.Task_Id, System.Tasking.Task_Id); - - ----------------------------------- - -- Current_Task_Fallback_Handler -- - ----------------------------------- - - function Current_Task_Fallback_Handler return Termination_Handler is - begin - -- There is no need for explicit protection against race conditions - -- for this function because this function can only be executed by - -- Self, and the Fall_Back_Handler can only be modified by Self. - - return To_TT (STPO.Self.Common.Fall_Back_Handler); - end Current_Task_Fallback_Handler; - - ------------------------------------- - -- Set_Dependents_Fallback_Handler -- - ------------------------------------- - - procedure Set_Dependents_Fallback_Handler - (Handler : Termination_Handler) - is - Self : constant System.Tasking.Task_Id := STPO.Self; - - begin - SSL.Abort_Defer.all; - - if Single_Lock then - STPO.Lock_RTS; - end if; - - STPO.Write_Lock (Self); - - Self.Common.Fall_Back_Handler := To_ST (Handler); - - STPO.Unlock (Self); - - if Single_Lock then - STPO.Unlock_RTS; - end if; - - SSL.Abort_Undefer.all; - end Set_Dependents_Fallback_Handler; - - -------------------------- - -- Set_Specific_Handler -- - -------------------------- - - procedure Set_Specific_Handler - (T : Ada.Task_Identification.Task_Id; - Handler : Termination_Handler) - is - begin - -- Tasking_Error is raised if the task identified by T has already - -- terminated. Program_Error is raised if the value of T is - -- Null_Task_Id. - - if T = Ada.Task_Identification.Null_Task_Id then - raise Program_Error; - elsif Ada.Task_Identification.Is_Terminated (T) then - raise Tasking_Error; - else - declare - Target : constant System.Tasking.Task_Id := To_Task_Id (T); - - begin - SSL.Abort_Defer.all; - - if Single_Lock then - STPO.Lock_RTS; - end if; - - STPO.Write_Lock (Target); - - Target.Common.Specific_Handler := To_ST (Handler); - - STPO.Unlock (Target); - - if Single_Lock then - STPO.Unlock_RTS; - end if; - - SSL.Abort_Undefer.all; - end; - end if; - end Set_Specific_Handler; - - ---------------------- - -- Specific_Handler -- - ---------------------- - - function Specific_Handler - (T : Ada.Task_Identification.Task_Id) return Termination_Handler - is - begin - -- Tasking_Error is raised if the task identified by T has already - -- terminated. Program_Error is raised if the value of T is - -- Null_Task_Id. - - if T = Ada.Task_Identification.Null_Task_Id then - raise Program_Error; - elsif Ada.Task_Identification.Is_Terminated (T) then - raise Tasking_Error; - else - declare - Target : constant System.Tasking.Task_Id := To_Task_Id (T); - TH : Termination_Handler; - - begin - SSL.Abort_Defer.all; - - if Single_Lock then - STPO.Lock_RTS; - end if; - - STPO.Write_Lock (Target); - - TH := To_TT (Target.Common.Specific_Handler); - - STPO.Unlock (Target); - - if Single_Lock then - STPO.Unlock_RTS; - end if; - - SSL.Abort_Undefer.all; - - return TH; - end; - end if; - end Specific_Handler; - -end Ada.Task_Termination; |