------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S Y S T E M . S T O R A G E _ P O O L S -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2013, Free Software Foundation, Inc. -- -- -- -- This specification is derived from the Ada Reference Manual for use with -- -- GNAT. The copyright notice above, and the license provisions that follow -- -- apply solely to the contents of the part following the private keyword. -- -- -- -- 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. -- -- -- ------------------------------------------------------------------------------ with Ada.Finalization; with System.Storage_Elements; package System.Storage_Pools is pragma Preelaborate; type Root_Storage_Pool is abstract new Ada.Finalization.Limited_Controlled with private; pragma Preelaborable_Initialization (Root_Storage_Pool); procedure Allocate (Pool : in out Root_Storage_Pool; Storage_Address : out System.Address; Size_In_Storage_Elements : System.Storage_Elements.Storage_Count; Alignment : System.Storage_Elements.Storage_Count) is abstract; procedure Deallocate (Pool : in out Root_Storage_Pool; Storage_Address : System.Address; Size_In_Storage_Elements : System.Storage_Elements.Storage_Count; Alignment : System.Storage_Elements.Storage_Count) is abstract; function Storage_Size (Pool : Root_Storage_Pool) return System.Storage_Elements.Storage_Count is abstract; private type Root_Storage_Pool is abstract new Ada.Finalization.Limited_Controlled with null record; type Root_Storage_Pool_Ptr is access all Root_Storage_Pool'Class; for Root_Storage_Pool_Ptr'Storage_Size use 0; -- Type of the BIP_Storage_Pool extra parameter (see Exp_Ch6). The -- Storage_Size clause is necessary, because otherwise we have a -- chicken&egg problem; we can't be creating collection finalization code -- in this low-level package, because that involves Pool_Global, which -- imports this package. -- ??? Are these two still needed? It might be possible to use Subpools. -- Allocate_Any_Controlled / Deallocate_Any_Controlled for non-controlled -- objects. -- The following two procedures support the use of class-wide pool -- objects in storage pools. When a local type is given a class-wide -- storage pool, allocation and deallocation for the type must dispatch -- to the operation of the specific pool, which is achieved by a call -- to these procedures. (When the pool type is specific, the back-end -- generates a call to the statically identified operation of the type). procedure Allocate_Any (Pool : in out Root_Storage_Pool'Class; Storage_Address : out System.Address; Size_In_Storage_Elements : System.Storage_Elements.Storage_Count; Alignment : System.Storage_Elements.Storage_Count); procedure Deallocate_Any (Pool : in out Root_Storage_Pool'Class; Storage_Address : System.Address; Size_In_Storage_Elements : System.Storage_Elements.Storage_Count; Alignment : System.Storage_Elements.Storage_Count); end System.Storage_Pools;