| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- S Y S T E M . P O O L _ S I Z E -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1992-2011, 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 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 -- |
| -- <http://www.gnu.org/licenses/>. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| with System.Storage_Pools; |
| with System.Storage_Elements; |
| |
| package System.Pool_Size is |
| pragma Elaborate_Body; |
| -- Needed to ensure that library routines can execute allocators |
| |
| ------------------------ |
| -- Stack_Bounded_Pool -- |
| ------------------------ |
| |
| -- Allocation strategy: |
| |
| -- Pool is a regular stack array, no use of malloc |
| -- user specified size |
| -- Space of pool is globally reclaimed by normal stack management |
| |
| -- Used in the compiler for access types with 'STORAGE_SIZE rep. clause |
| -- Only used for allocating objects of the same type. |
| |
| type Stack_Bounded_Pool |
| (Pool_Size : System.Storage_Elements.Storage_Count; |
| Elmt_Size : System.Storage_Elements.Storage_Count; |
| Alignment : System.Storage_Elements.Storage_Count) |
| is |
| new System.Storage_Pools.Root_Storage_Pool with record |
| First_Free : System.Storage_Elements.Storage_Count; |
| First_Empty : System.Storage_Elements.Storage_Count; |
| Aligned_Elmt_Size : System.Storage_Elements.Storage_Count; |
| The_Pool : System.Storage_Elements.Storage_Array |
| (1 .. Pool_Size); |
| end record; |
| |
| overriding function Storage_Size |
| (Pool : Stack_Bounded_Pool) return System.Storage_Elements.Storage_Count; |
| |
| overriding procedure Allocate |
| (Pool : in out Stack_Bounded_Pool; |
| Address : out System.Address; |
| Storage_Size : System.Storage_Elements.Storage_Count; |
| Alignment : System.Storage_Elements.Storage_Count); |
| |
| overriding procedure Deallocate |
| (Pool : in out Stack_Bounded_Pool; |
| Address : System.Address; |
| Storage_Size : System.Storage_Elements.Storage_Count; |
| Alignment : System.Storage_Elements.Storage_Count); |
| |
| overriding procedure Initialize (Pool : in out Stack_Bounded_Pool); |
| |
| end System.Pool_Size; |
