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------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- -- -- -- SYSTEM.TASK_PRIMITIVES.OPERATIONS.SPECIFIC -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992-2011, 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 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. -- -- -- -- 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. -- -- -- ------------------------------------------------------------------------------ -- This is a POSIX-like version of this package separate (System.Task_Primitives.Operations) package body Specific is ATCB_Key : aliased pthread_key_t; -- Key used to find the Ada Task_Id associated with a thread ---------------- -- Initialize -- ---------------- procedure Initialize (Environment_Task : Task_Id) is pragma Warnings (Off, Environment_Task); Result : Interfaces.C.int; begin Result := pthread_key_create (ATCB_Key'Access, null); pragma Assert (Result = 0); end Initialize; ------------------- -- Is_Valid_Task -- ------------------- function Is_Valid_Task return Boolean is begin return pthread_getspecific (ATCB_Key) /= System.Null_Address; end Is_Valid_Task; --------- -- Set -- --------- procedure Set (Self_Id : Task_Id) is Result : Interfaces.C.int; begin Result := pthread_setspecific (ATCB_Key, To_Address (Self_Id)); pragma Assert (Result = 0); end Set; ---------- -- Self -- ---------- function Self return Task_Id is begin return To_Task_Id (pthread_getspecific (ATCB_Key)); end Self; end Specific;