1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
5 -- SYSTEM.TASK_PRIMITIVES.OPERATIONS.SPECIFIC --
9 -- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
11 -- GNARL is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
27 -- GNARL was developed by the GNARL team at Florida State University. --
28 -- Extensive contributions were provided by Ada Core Technologies, Inc. --
30 ------------------------------------------------------------------------------
32 -- This is a POSIX-like version of this package.
34 separate (System.Task_Primitives.Operations)
35 package body Specific is
41 procedure Initialize (Environment_Task : Task_Id) is
42 pragma Warnings (Off, Environment_Task);
43 Result : Interfaces.C.int;
45 Result := pthread_key_create (ATCB_Key'Access, null);
46 pragma Assert (Result = 0);
53 function Is_Valid_Task return Boolean is
55 return pthread_getspecific (ATCB_Key) /= System.Null_Address;
62 procedure Set (Self_Id : Task_Id) is
63 Result : Interfaces.C.int;
65 Result := pthread_setspecific (ATCB_Key, To_Address (Self_Id));
66 pragma Assert (Result = 0);
73 function Self return Task_Id is
75 return To_Task_Id (pthread_getspecific (ATCB_Key));