1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- A D A . T A S K _ I D E N T I F I C A T I O N --
10 -- Copyright (C) 1992-2001 Free Software Foundation, Inc. --
12 -- GNAT is free software; you can redistribute it and/or modify it under --
13 -- terms of the GNU General Public License as published by the Free Soft- --
14 -- ware Foundation; either version 2, or (at your option) any later ver- --
15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
17 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
18 -- for more details. You should have received a copy of the GNU General --
19 -- Public License distributed with GNAT; see file COPYING. If not, write --
20 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
21 -- MA 02111-1307, USA. --
23 -- As a special exception, if other files instantiate generics from this --
24 -- unit, or you link this unit with other files to produce an executable, --
25 -- this unit does not by itself cause the resulting executable to be --
26 -- covered by the GNU General Public License. This exception does not --
27 -- however invalidate any other reasons why the executable file might be --
28 -- covered by the GNU Public License. --
30 -- GNAT was originally developed by the GNAT team at New York University. --
31 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
33 ------------------------------------------------------------------------------
35 with System.Address_Image;
36 -- used for the function itself
41 with System.Tasking.Stages;
42 -- used for Terminated
45 with System.Tasking.Rendezvous;
48 with System.Task_Primitives.Operations;
51 with System.Task_Info;
52 use type System.Task_Info.Task_Image_Type;
54 with Unchecked_Conversion;
56 package body Ada.Task_Identification is
58 -----------------------
59 -- Local Subprograms --
60 -----------------------
62 function Convert_Ids (T : Task_Id) return System.Tasking.Task_ID;
63 function Convert_Ids (T : System.Tasking.Task_ID) return Task_Id;
64 pragma Inline (Convert_Ids);
65 -- Conversion functions between different forms of Task_Id
71 function "=" (Left, Right : Task_Id) return Boolean is
73 return System.Tasking."=" (Convert_Ids (Left), Convert_Ids (Right));
80 procedure Abort_Task (T : Task_Id) is
82 if T = Null_Task_Id then
85 System.Tasking.Stages.Abort_Tasks
86 (System.Tasking.Task_List'(1 => Convert_Ids (T)));
94 function Convert_Ids (T : Task_Id) return System.Tasking.Task_ID is
96 return System.Tasking.Task_ID (T);
99 function Convert_Ids (T : System.Tasking.Task_ID) return Task_Id is
108 function Current_Task return Task_Id is
110 return Convert_Ids (System.Task_Primitives.Operations.Self);
117 function Image (T : Task_Id) return String is
118 use System.Task_Info;
119 function To_Address is new
120 Unchecked_Conversion (Task_Id, System.Address);
123 if T = Null_Task_Id then
126 elsif T.Common.Task_Image = null then
127 return System.Address_Image (To_Address (T));
130 return T.Common.Task_Image.all
131 & "_" & System.Address_Image (To_Address (T));
139 function Is_Callable (T : Task_Id) return Boolean is
141 if T = Null_Task_Id then
144 return System.Tasking.Rendezvous.Callable (Convert_Ids (T));
152 function Is_Terminated (T : Task_Id) return Boolean is
154 if T = Null_Task_Id then
157 return System.Tasking.Stages.Terminated (Convert_Ids (T));
161 end Ada.Task_Identification;