-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2007, 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, 51 Franklin Street, Fifth Floor, --
--- Boston, MA 02110-1301, 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. --
------------------------------------------------------------------------------
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.
+-- Turn off polling, we do not want ATC polling to take place during tasking
+-- operations. It causes infinite loops and other problems.
-with System.Task_Primitives.Operations;
--- used for Self
+with Ada.Unchecked_Deallocation;
+with System.Task_Primitives.Operations;
with System.Storage_Elements;
--- Needed for initializing Stack_Info.Size
package body System.Tasking is
package STPO renames System.Task_Primitives.Operations;
+ ----------------------------
+ -- Free_Entry_Names_Array --
+ ----------------------------
+
+ procedure Free_Entry_Names_Array (Obj : in out Entry_Names_Array) is
+ procedure Free_String is new
+ Ada.Unchecked_Deallocation (String, String_Access);
+ begin
+ for Index in Obj'Range loop
+ Free_String (Obj (Index));
+ end loop;
+ end Free_Entry_Names_Array;
+
---------------------
-- Detect_Blocking --
---------------------
function Detect_Blocking return Boolean is
GL_Detect_Blocking : Integer;
pragma Import (C, GL_Detect_Blocking, "__gl_detect_blocking");
- -- Global variable exported by the binder generated file.
- -- A value equal to 1 indicates that pragma Detect_Blocking is active,
- -- while 0 is used for the pragma not being present.
+ -- Global variable exported by the binder generated file. A value equal
+ -- to 1 indicates that pragma Detect_Blocking is active, while 0 is used
+ -- for the pragma not being present.
begin
return GL_Detect_Blocking = 1;
Task_Info : System.Task_Info.Task_Info_Type;
Stack_Size : System.Parameters.Size_Type;
T : Task_Id;
- Success : out Boolean) is
+ Success : out Boolean)
+ is
begin
T.Common.State := Unactivated;
return;
end if;
- T.Common.Parent := Parent;
- T.Common.Base_Priority := Base_Priority;
- T.Common.Current_Priority := 0;
+ -- Wouldn't the following be better done using an assignment of an
+ -- aggregate so that we could be sure no components were forgotten???
+
+ T.Common.Parent := Parent;
+ T.Common.Base_Priority := Base_Priority;
+ T.Common.Current_Priority := 0;
T.Common.Protected_Action_Nesting := 0;
- T.Common.Call := null;
- T.Common.Task_Arg := Task_Arg;
- T.Common.Task_Entry_Point := Task_Entry_Point;
- T.Common.Activator := Self_ID;
- T.Common.Wait_Count := 0;
- T.Common.Elaborated := Elaborated;
- T.Common.Activation_Failed := False;
- T.Common.Task_Info := Task_Info;
+ T.Common.Call := null;
+ T.Common.Task_Arg := Task_Arg;
+ T.Common.Task_Entry_Point := Task_Entry_Point;
+ T.Common.Activator := Self_ID;
+ T.Common.Wait_Count := 0;
+ T.Common.Elaborated := Elaborated;
+ T.Common.Activation_Failed := False;
+ T.Common.Task_Info := Task_Info;
T.Common.Global_Task_Lock_Nesting := 0;
- T.Common.Fall_Back_Handler := null;
- T.Common.Specific_Handler := null;
+ T.Common.Fall_Back_Handler := null;
+ T.Common.Specific_Handler := null;
+ T.Common.Debug_Events := (others => False);
if T.Common.Parent = null then
- -- For the environment task, the adjusted stack size is
- -- meaningless. For example, an unspecified Stack_Size means
- -- that the stack size is determined by the environment, or
- -- can grow dynamically. The Stack_Checking algorithm
- -- therefore needs to use the requested size, or 0 in
- -- case of an unknown size.
+
+ -- For the environment task, the adjusted stack size is meaningless.
+ -- For example, an unspecified Stack_Size means that the stack size
+ -- is determined by the environment, or can grow dynamically. The
+ -- Stack_Checking algorithm therefore needs to use the requested
+ -- size, or 0 in case of an unknown size.
T.Common.Compiler_Data.Pri_Stack_Info.Size :=
Storage_Elements.Storage_Offset (Stack_Size);
Main_Priority : Integer;
pragma Import (C, Main_Priority, "__gl_main_priority");
- -- Priority for main task. Note that this is of type Integer, not
- -- Priority, because we use the value -1 to indicate the default
- -- main priority, and that is of course not in Priority'range.
+ -- Priority for main task. Note that this is of type Integer, not Priority,
+ -- because we use the value -1 to indicate the default main priority, and
+ -- that is of course not in Priority'range.
Initialized : Boolean := False;
-- Used to prevent multiple calls to Initialize
procedure Initialize is
T : Task_Id;
Base_Priority : Any_Priority;
-
- Success : Boolean;
- pragma Warnings (Off, Success);
+ Success : Boolean;
begin
if Initialized then
-- Initialize Environment Task
- if Main_Priority = Unspecified_Priority then
- Base_Priority := Default_Priority;
- else
- Base_Priority := Priority (Main_Priority);
- end if;
+ Base_Priority :=
+ (if Main_Priority = Unspecified_Priority
+ then Default_Priority
+ else Priority (Main_Priority));
- Success := True;
T := STPO.New_ATCB (0);
Initialize_ATCB
(null, null, Null_Address, Null_Task, null, Base_Priority,
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