------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- G N A T . T A S K _ L O C K -- -- -- -- S p e c -- -- -- -- Copyright (C) 1998-2010, 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 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 -- -- . -- -- -- -- 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;