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 --
11 -- Copyright (C) 1992-2001 Free Software Foundation, Inc. --
13 -- GNAT is free software; you can redistribute it and/or modify it under --
14 -- terms of the GNU General Public License as published by the Free Soft- --
15 -- ware Foundation; either version 2, or (at your option) any later ver- --
16 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
17 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
18 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
19 -- for more details. You should have received a copy of the GNU General --
20 -- Public License distributed with GNAT; see file COPYING. If not, write --
21 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
22 -- MA 02111-1307, USA. --
24 -- As a special exception, if other files instantiate generics from this --
25 -- unit, or you link this unit with other files to produce an executable, --
26 -- this unit does not by itself cause the resulting executable to be --
27 -- covered by the GNU General Public License. This exception does not --
28 -- however invalidate any other reasons why the executable file might be --
29 -- covered by the GNU Public License. --
31 -- GNAT was originally developed by the GNAT team at New York University. --
32 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
34 ------------------------------------------------------------------------------
36 with System.Address_Image;
37 -- used for the function itself
42 with System.Tasking.Stages;
43 -- used for Terminated
46 with System.Tasking.Rendezvous;
49 with System.Task_Primitives.Operations;
52 with System.Task_Info;
53 use type System.Task_Info.Task_Image_Type;
55 with Unchecked_Conversion;
57 package body Ada.Task_Identification is
59 -----------------------
60 -- Local Subprograms --
61 -----------------------
63 function Convert_Ids (T : Task_Id) return System.Tasking.Task_ID;
64 function Convert_Ids (T : System.Tasking.Task_ID) return Task_Id;
65 pragma Inline (Convert_Ids);
66 -- Conversion functions between different forms of Task_Id
72 function "=" (Left, Right : Task_Id) return Boolean is
74 return System.Tasking."=" (Convert_Ids (Left), Convert_Ids (Right));
81 procedure Abort_Task (T : Task_Id) is
83 if T = Null_Task_Id then
86 System.Tasking.Stages.Abort_Tasks
87 (System.Tasking.Task_List'(1 => Convert_Ids (T)));
95 function Convert_Ids (T : Task_Id) return System.Tasking.Task_ID is
97 return System.Tasking.Task_ID (T);
100 function Convert_Ids (T : System.Tasking.Task_ID) return Task_Id is
109 function Current_Task return Task_Id is
111 return Convert_Ids (System.Task_Primitives.Operations.Self);
118 function Image (T : Task_Id) return String is
119 use System.Task_Info;
120 function To_Address is new
121 Unchecked_Conversion (Task_Id, System.Address);
124 if T = Null_Task_Id then
127 elsif T.Common.Task_Image = null then
128 return System.Address_Image (To_Address (T));
131 return T.Common.Task_Image.all
132 & "_" & System.Address_Image (To_Address (T));
140 function Is_Callable (T : Task_Id) return Boolean is
142 if T = Null_Task_Id then
145 return System.Tasking.Rendezvous.Callable (Convert_Ids (T));
153 function Is_Terminated (T : Task_Id) return Boolean is
155 if T = Null_Task_Id then
158 return System.Tasking.Stages.Terminated (Convert_Ids (T));
162 end Ada.Task_Identification;