------------------------------------------------------------------------------
-- PostgreSQL server extension modules binding --
-- --
-- Copyright (C) 2020, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the Free --
-- Software Foundation; either version 3, or (at your option) any later --
-- version. This library is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN- --
-- TABILITY 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/>. --
-- --
------------------------------------------------------------------------------
-- Memory pool on top of PostgreSQL memory allocator.
--
-- Allocated memory is not need to be freed manually, all allocated chunks
-- freed when memory context is freed.
with System.Storage_Elements;
with System.Storage_Pools;
private with PGXS.Types;
package PGXS.Pools is
type Memory_Context_Pool is
new System.Storage_Pools.Root_Storage_Pool with private;
private
type Memory_Context_Pool is
new System.Storage_Pools.Root_Storage_Pool with null record;
overriding procedure Allocate
(Pool : in out Memory_Context_Pool;
Storage_Address : out System.Address;
Size_In_Storage_Elements : System.Storage_Elements.Storage_Count;
Alignment : System.Storage_Elements.Storage_Count);
overriding procedure Deallocate
(Pool : in out Memory_Context_Pool;
Storage_Address : System.Address;
Size_In_Storage_Elements : System.Storage_Elements.Storage_Count;
Alignment : System.Storage_Elements.Storage_Count)
is null;
overriding function Storage_Size
(Pool : Memory_Context_Pool)
return System.Storage_Elements.Storage_Count is
(System.Storage_Elements.Storage_Count (PGXS.Types.Int_32'Last));
end PGXS.Pools;