-- --
-- S p e c --
-- --
--- Copyright (C) 1999-2001 Free Software Foundation, Inc. --
+-- Copyright (C) 1999-2006, Free Software Foundation, Inc. --
-- --
-- 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- --
-- 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- 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, --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
--- GNAT is maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
package System.Global_Locks is
Lock_Error : exception;
- -- Exception raised if a request cannot be executed on a lock.
+ -- Exception raised if a request cannot be executed on a lock
type Lock_Type is private;
-- Such a lock is a global lock between partitions. This lock is
-- uniquely defined between the partitions because of its name.
Null_Lock : constant Lock_Type;
+ -- This needs comments ???
- procedure Create_Lock
- (Lock : out Lock_Type;
- Name : in String);
+ procedure Create_Lock (Lock : out Lock_Type; Name : String);
-- Create or retrieve a global lock for the current partition using
-- its Name.
- procedure Acquire_Lock
- (Lock : in out Lock_Type);
+ procedure Acquire_Lock (Lock : in out Lock_Type);
-- If the lock cannot be acquired because someone already owns it, this
-- procedure is supposed to wait and retry forever.
- procedure Release_Lock
- (Lock : in out Lock_Type);
+ procedure Release_Lock (Lock : in out Lock_Type);
private