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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- E X P _ S M E M --
-- --
-- S p e c --
-- --
-- Copyright (C) 1998-2000, 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- --
-- 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. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This package contains routines involved in the required expansions for
-- handling shared memory accesses for variables in Shared_Passive packages.
-- See detailed documentation in System.Shared_Storage spec for a full
-- description of the approach that is taken for handling distributed
-- shared memory. This expansion unit in the compiler is responsible
-- for generating the calls to routines in System.Shared_Storage.
with Types; use Types;
package Exp_Smem is
procedure Expand_Shared_Passive_Variable (N : Node_Id);
-- N is the identifier for a shared passive variable. This routine is
-- responsible for determining if this is an assigned to N, or a
-- reference to N, and generating the required calls to the shared
-- memory read/write procedures.
procedure Add_Shared_Var_Lock_Procs (N : Node_Id);
-- The argument is a protected subprogram call, before it is rewritten
-- by Exp_Ch9.Build_Protected_Subprogram_Call. This routine, which is
-- called only in the case of an external call to a protected object
-- that has Is_Shared_Passive set, deals with installing the required
-- global lock calls for this case. It also generates the necessary
-- read/write calls for the protected object within the lock region.
procedure Make_Shared_Var_Procs (N : Node_Id);
-- N is the node for the declaration of a shared passive variable. This
-- procedure constructs and inserts the read and assignment procedures
-- for the shared memory variable. See System.Shared_Storage for a full
-- description of these procedures and how they are used.
end Exp_Smem;
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