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------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- G N A T . T A S K _ L O C K -- -- -- -- S p e c -- -- -- -- Copyright (C) 1998-2007, AdaCore -- -- -- -- GNAT 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 2, 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. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING. If not, write -- -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- -- Boston, MA 02110-1301, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- -- this unit does not by itself cause the resulting executable to be -- -- covered by the GNU General Public License. This exception does not -- -- however invalidate any other reasons why the executable file might be -- -- covered by the GNU Public License. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- Simple task lock and unlock routines -- A small package containing a task lock and unlock routines for creating -- a critical region. The lock involved is a global lock, shared by all -- tasks, and by all calls to these routines, so these routines should be -- used with care to avoid unnecessary reduction of concurrency. -- These routines may be used in a non-tasking program, and in that case -- they have no effect (they do NOT cause the tasking runtime to be loaded). -- See file s-tasloc.ads for full documentation of the interface with System.Task_Lock; package GNAT.Task_Lock renames System.Task_Lock;