+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- S Y S T E M . G L O B A L _ L O C K S --
--- --
--- S p e c --
--- --
--- $Revision: 1.1 $
--- --
--- Copyright (C) 1999-2001 Ada Core Technologies, 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- --
--- 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, 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 is maintained by Ada Core Technologies Inc (http://www.gnat.com). --
--- --
-------------------------------------------------------------------------------
-
- -- This package contains the necessary routines to provide
- -- reliable system wide locking capability.
-
-package System.Global_Locks is
-
- Lock_Error : exception;
- -- 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;
-
- procedure Create_Lock
- (Lock : out Lock_Type;
- Name : in String);
- -- Create or retrieve a global lock for the current partition using
- -- its Name.
-
- 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);
-
-private
-
- type Lock_Type is new Natural;
-
- Null_Lock : constant Lock_Type := 0;
-
-end System.Global_Locks;
projects / msp430-gcc.git / blobdiff