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197 | ------------------------------------------------------------------------------
-- --
-- Matreshka Project --
-- --
-- SQL Database Access --
-- --
-- Runtime Library Component --
-- --
------------------------------------------------------------------------------
-- --
-- Copyright © 2011-2012, Vadim Godunko <vgodunko@gmail.com> --
-- All rights reserved. --
-- --
-- Redistribution and use in source and binary forms, with or without --
-- modification, are permitted provided that the following conditions --
-- are met: --
-- --
-- * Redistributions of source code must retain the above copyright --
-- notice, this list of conditions and the following disclaimer. --
-- --
-- * Redistributions in binary form must reproduce the above copyright --
-- notice, this list of conditions and the following disclaimer in the --
-- documentation and/or other materials provided with the distribution. --
-- --
-- * Neither the name of the Vadim Godunko, IE nor the names of its --
-- contributors may be used to endorse or promote products derived from --
-- this software without specific prior written permission. --
-- --
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS --
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT --
-- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR --
-- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT --
-- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, --
-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED --
-- TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR --
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF --
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING --
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS --
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. --
-- --
------------------------------------------------------------------------------
-- $Revision: 3614 $ $Date: 2012-12-25 15:19:53 +0400 (Вт, 25 дек 2012) $
------------------------------------------------------------------------------
-- This package provides low level binding to PostgreSQL database client
-- library.
------------------------------------------------------------------------------
with Interfaces.C.Strings;
package Matreshka.Internals.SQL_Drivers.PostgreSQL is
pragma Preelaborate;
-----------
-- Types --
-----------
type PGconn is limited private;
type PGconn_Access is access all PGconn;
pragma Convention (C, PGconn_Access);
type PGresult is limited private;
type PGresult_Access is access all PGresult;
pragma Convention (C, PGresult_Access);
type Oid is new Interfaces.C.int;
type Oid_Access is access all oid;
pragma Convention (C, Oid_Access);
type ConnStatusType is
(CONNECTION_OK,
CONNECTION_BAD,
CONNECTION_STARTED,
CONNECTION_MADE,
CONNECTION_AWAITING_RESPONSE,
CONNECTION_AUTH_OK,
CONNECTION_SETENV,
CONNECTION_SSL_STARTUP,
CONNECTION_NEEDED);
pragma Convention (C, ConnStatusType);
type ExecStatusType is
(PGRES_EMPTY_QUERY,
PGRES_COMMAND_OK,
PGRES_TUPLES_OK,
PGRES_COPY_OUT,
PGRES_COPY_IN,
PGRES_BAD_RESPONSE,
PGRES_NONFATAL_ERROR,
PGRES_FATAL_ERROR);
pragma Convention (C, ExecStatusType);
type chars_ptr_Access is access all Interfaces.C.Strings.chars_ptr;
pragma Convention (C, chars_ptr_Access);
type int_Access is access all Interfaces.C.int;
pragma Convention (C, int_Access);
-----------------
-- Subprograms --
-----------------
function pg_encoding_to_char
(encoding_id : Interfaces.C.int) return Interfaces.C.Strings.chars_ptr;
pragma Import (C, pg_encoding_to_char);
procedure PQclear (res : PGresult_Access);
pragma Import (C, PQclear, "PQclear");
function PQclientEncoding (conn : PGconn_Access) return Interfaces.C.int;
pragma Import (C, PQclientEncoding, "PQclientEncoding");
function PQconnectdbParams
(keywords : Interfaces.C.Strings.chars_ptr_array;
values : Interfaces.C.Strings.chars_ptr_array;
expand_dbnam : Interfaces.C.int) return PGconn_Access;
pragma Import (C, PQconnectdbParams, "PQconnectdbParams");
function PQerrorMessage
(conn : PGconn_Access) return Interfaces.C.Strings.chars_ptr;
pragma Import (C, PQerrorMessage, "PQerrorMessage");
function PQexec
(conn : PGconn_Access;
command : Interfaces.C.Strings.chars_ptr) return PGresult_Access;
pragma Import (C, PQexec, "PQexec");
function PQexecPrepared
(conn : PGconn_Access;
stmtName : Interfaces.C.Strings.chars_ptr;
nParams : Interfaces.C.int;
-- paramValues : chars_ptr_Access;
paramValues : Interfaces.C.Strings.chars_ptr_array;
paramLengths : int_Access;
paramFormats : int_Access;
resultFormat : Interfaces.C.int) return PGresult_Access;
pragma Import (C, PQexecPrepared, "PQexecPrepared");
procedure PQfinish (conn : PGconn_Access);
pragma Import (C, PQfinish, "PQfinish");
function PQftype
(res : PGresult_Access; column_number : Interfaces.C.int) return Oid;
pragma Import (C, PQftype, "PQftype");
function PQgetisnull
(res : PGresult_Access;
row_number : Interfaces.C.int;
column_number : Interfaces.C.int) return Interfaces.C.int;
pragma Import (C, PQgetisnull, "PQgetisnull");
function PQgetlength
(res : PGresult_Access;
row_number : Interfaces.C.int;
column_number : Interfaces.C.int) return Interfaces.C.int;
pragma Import (C, PQgetlength, "PQgetlength");
function PQgetvalue
(res : PGresult_Access;
row_number : Interfaces.C.int;
column_number : Interfaces.C.int) return Interfaces.C.Strings.chars_ptr;
pragma Import (C, PQgetvalue, "PQgetvalue");
function PQisthreadsafe return Interfaces.C.int;
pragma Import (C, PQisthreadsafe, "PQisthreadsafe");
function PQntuples (res : PGresult_Access) return Interfaces.C.int;
pragma Import (C, PQntuples, "PQntuples");
function PQprepare
(conn : PGconn_Access;
stmtName : Interfaces.C.Strings.chars_ptr;
query : Interfaces.C.Strings.chars_ptr;
nParams : Interfaces.C.int;
paramTypes : Oid_Access) return PGresult_Access;
pragma Import (C, PQprepare, "PQprepare");
function PQresultStatus (res : PGresult_Access) return ExecStatusType;
pragma Import (C, PQresultStatus, "PQresultStatus");
function PQsetClientEncoding
(conn : PGconn_Access;
encoding : Interfaces.C.Strings.chars_ptr) return Interfaces.C.int;
pragma Import (C, PQsetClientEncoding, "PQsetClientEncoding");
function PQstatus (conn : PGconn_Access) return ConnStatusType;
pragma Import (C, PQstatus, "PQstatus");
private
type PGconn is limited null record;
type PGresult is limited null record;
end Matreshka.Internals.SQL_Drivers.PostgreSQL;
|