------------------------------------------------------------------------------
-- 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/>. --
-- --
------------------------------------------------------------------------------
with PGXS.Types;
package body PGXS.Varlen is
--------------
-- Allocate --
--------------
function Allocate
(Size : System.Storage_Elements.Storage_Count) return Varlen_A
is
function palloc_varlena (Size : PGXS.Types.Int_32) return Varlen_A
with Import, Convention => C, Link_Name => "__ada_palloc_varlena";
procedure Set_Size (Item : Varlen_A; Size : PGXS.Types.Int_32)
with Import, Convention => C, Link_Name => "__ada_SET_VARSIZE";
begin
return Result : Varlen_A := palloc_varlena (PGXS.Types.Int_32 (Size)) do
Set_Size (Result, PGXS.Types.Int_32 (Size));
end return;
end Allocate;
----------
-- Size --
----------
function Size
(Item : Varlen_A) return System.Storage_Elements.Storage_Count
is
function Imported (Item : Varlen_A) return PGXS.Types.Int_32
with Import, Convention => C, Link_Name => "__ada_VARSIZE_ANY_EXHDR";
begin
return System.Storage_Elements.Storage_Count (Imported (Item));
end Size;
end PGXS.Varlen;