File : a-taside.ads
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- A D A . T A S K _ I D E N T I F I C A T I O N --
6 -- --
7 -- S p e c --
8 -- --
9 -- Copyright (C) 1992-2015, Free Software Foundation, Inc. --
10 -- --
11 -- This specification is derived from the Ada Reference Manual for use with --
12 -- GNAT. The copyright notice above, and the license provisions that follow --
13 -- apply solely to the contents of the part following the private keyword. --
14 -- --
15 -- GNAT is free software; you can redistribute it and/or modify it under --
16 -- terms of the GNU General Public License as published by the Free Soft- --
17 -- ware Foundation; either version 3, or (at your option) any later ver- --
18 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
19 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
20 -- or FITNESS FOR A PARTICULAR PURPOSE. --
21 -- --
22 -- --
23 -- --
24 -- --
25 -- --
26 -- You should have received a copy of the GNU General Public License and --
27 -- a copy of the GCC Runtime Library Exception along with this program; --
28 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
29 -- <http://www.gnu.org/licenses/>. --
30 -- --
31 -- GNAT was originally developed by the GNAT team at New York University. --
32 -- Extensive contributions were provided by Ada Core Technologies Inc. --
33 -- --
34 ------------------------------------------------------------------------------
35
36 with System;
37 with System.Tasking;
38
39 package Ada.Task_Identification with
40 SPARK_Mode,
41 Abstract_State => (Tasking_State with Synchronous,
42 External => (Async_Readers,
43 Async_Writers)),
44 Initializes => Tasking_State
45 is
46 pragma Preelaborate;
47 -- In accordance with Ada 2005 AI-362
48
49 type Task_Id is private;
50 pragma Preelaborable_Initialization (Task_Id);
51
52 Null_Task_Id : constant Task_Id;
53
54 function "=" (Left, Right : Task_Id) return Boolean with
55 Global => null;
56 pragma Inline ("=");
57
58 function Image (T : Task_Id) return String with
59 Global => null;
60
61 function Current_Task return Task_Id with
62 Volatile_Function,
63 Global => Tasking_State;
64 pragma Inline (Current_Task);
65
66 function Environment_Task return Task_Id with
67 SPARK_Mode => Off,
68 Global => null;
69 pragma Inline (Environment_Task);
70
71 procedure Abort_Task (T : Task_Id) with
72 Global => null;
73 pragma Inline (Abort_Task);
74 -- Note: parameter is mode IN, not IN OUT, per AI-00101
75
76 function Is_Terminated (T : Task_Id) return Boolean with
77 Volatile_Function,
78 Global => Tasking_State;
79 pragma Inline (Is_Terminated);
80
81 function Is_Callable (T : Task_Id) return Boolean with
82 Volatile_Function,
83 Global => Tasking_State;
84 pragma Inline (Is_Callable);
85
86 function Activation_Is_Complete (T : Task_Id) return Boolean with
87 Volatile_Function,
88 Global => Tasking_State;
89
90 private
91 pragma SPARK_Mode (Off);
92
93 type Task_Id is new System.Tasking.Task_Id;
94
95 Null_Task_Id : constant Task_Id := null;
96
97 end Ada.Task_Identification;