%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2002-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%%     http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%

%
%% 

%% Path to the c-program.
-define(SERVERDIR, filename:nativename(
		     filename:join(code:priv_dir(odbc), "bin"))).

%% Name of the C program 
-define(SERVERPROG, "odbcserver").

%% Constats defining the command protocol between the erlang control
%% process and the port program. These constants must also be defined
%% in the same way in the port program.

-define(OPEN_CONNECTION,	1).
-define(CLOSE_CONNECTION,	2).
-define(COMMIT_TRANSACTION,	3).
-define(COMMIT,			4).
-define(ROLLBACK,		5).
-define(QUERY,			6).
-define(SELECT_COUNT,		7).
-define(SELECT_FIRST,		8).
-define(SELECT_LAST,		9).
-define(SELECT_NEXT,		10).
-define(SELECT_PREV,		11).
-define(SELECT,			12).
-define(SELECT_RELATIVE,	13).
-define(SELECT_ABSOLUTE,	14).
-define(SELECT_N_NEXT,		15).
-define(PARAM_QUERY,		16).
-define(DESCRIBE,               17).
-define(SHUTDOWN,		18).
-define(LENGTH_INDICATOR_SIZE,	4).
-define(INT_VALUE,		1).
-define(STR_VALUE,		2).
-define(ON,			1).
-define(OFF,			2).
-define(DUMMY_OFFSET,		0).


%% Types of parameters given to param_query
-define(USER_SMALL_INT, 1).
-define(USER_INT, 2).
-define(USER_DECIMAL, 3).
-define(USER_NUMERIC, 4).
-define(USER_CHAR, 5).
-define(USER_VARCHAR, 6).
-define(USER_FLOAT, 7).
-define(USER_REAL, 8).
-define(USER_DOUBLE, 9).
-define(USER_BOOLEAN, 10).
-define(USER_TINY_INT, 11).
-define(USER_WCHAR, 12).
-define(USER_WVARCHAR, 13).
-define(USER_TIMESTAMP, 14).
-define(USER_WLONGVARCHAR, 15).

%% INPUT & OUTPUT TYPE 
-define(IN, 0).
-define(OUT, 1).
-define(INOUT, 2).

%% EXIT CODES
-define(EXIT_SUCCESS,		 0). % As defined in c iso_stdlib
-define(EXIT_FAILURE,		 1). % As defined in c iso_stdlib
-define(EXIT_ALLOC,		 2).
-define(EXIT_ENV,		 3).
-define(EXIT_CONNECTION,	 4).
-define(EXIT_FREE,		 5).
-define(EXIT_STDIN_HEADER,	 6).
-define(EXIT_STDIN_BODY,	 7).
-define(EXIT_BIN,		 8).
-define(EXIT_THREAD,		 9).
-define(EXIT_PARAM_ARRAY,        10).
-define(EXIT_OLD_WINSOCK,	 11).
-define(EXIT_SOCKET_CONNECT,     12).  
-define(EXIT_SOCKET_SEND_HEADER, 13).
-define(EXIT_SOCKET_SEND_BODY,	 14).
-define(EXIT_SOCKET_RECV_MSGSIZE,15).
-define(EXIT_SOCKET_SEND_MSGSIZE,16).
-define(EXIT_SOCKET_RECV_HEADER, 17).
-define(EXIT_SOCKET_RECV_BODY,   18).
-define(EXIT_COLS,		 19).
-define(EXIT_ROWS,		 20).
-define(EXIT_DESC,		 21).
-define(EXIT_BIND,		 22).
-define(EXIT_DRIVER_INFO,        23).

%% Misc constants
-define(DEFAULT_TIMEOUT, infinity).
-define(STR_TERMINATOR, 0).
-define(MAX_SEQ_TIMEOUTS, 10).

%% Handling of C exit codes
-define(ENCODE_EXIT_FUN, 
	(fun(?EXIT_SUCCESS) ->
		 normal_exit;
	    (?EXIT_FAILURE) ->
		 abnormal_exit;
	    (?EXIT_ALLOC) ->
		 memory_allocation_failed;
	    (?EXIT_ENV)  ->
		 setting_of_environment_attributes_failed;
	    (?EXIT_CONNECTION) ->
		 setting_of_connection_attributes_faild;
	    (?EXIT_FREE) ->
		 freeing_of_memory_failed;
	    (?EXIT_STDIN_HEADER) ->
		 receiving_port_message_header_failed;
	    (?EXIT_STDIN_BODY) ->
		 receiving_port_message_body_failed;
	    (?EXIT_BIN) ->
		 retrieving_of_binary_data_failed;
	    (?EXIT_THREAD) ->
		 failed_to_create_thread;
	    (?EXIT_PARAM_ARRAY) ->
		 does_not_support_param_arrays;
	    (?EXIT_OLD_WINSOCK) ->
		 too_old_verion_of_winsock;
	    (?EXIT_SOCKET_CONNECT) ->
		 socket_connect_failed;
	    (?EXIT_SOCKET_SEND_HEADER) ->
		 socket_send_message_header_failed;
	    (?EXIT_SOCKET_SEND_BODY) ->
		 socket_send_message_body_failed;
	    (?EXIT_SOCKET_RECV_MSGSIZE) ->
		 socket_received_too_large_message;
	    (?EXIT_SOCKET_SEND_MSGSIZE) ->
		 too_large_message_in_socket_send;
	    (?EXIT_SOCKET_RECV_HEADER) ->
		 socket_receive_message_header_failed;
	    (?EXIT_SOCKET_RECV_BODY) ->
		 socket_receive_message_body_failed;
	    (?EXIT_COLS) ->
		 could_not_access_column_count;
	    (?EXIT_ROWS) ->
		 could_not_access_row_count;
	    (?EXIT_DESC) ->
		 could_not_access_table_description;
	    (?EXIT_BIND) ->
		 could_not_bind_data_buffers;
	    (?EXIT_DRIVER_INFO) ->
		 collecting_of_driver_information_faild;
	    (_) ->
		 killed
	 end)).

-define(PORT_EXIT_REASON(EXIT_STATUS), 
	?ENCODE_EXIT_FUN(EXIT_STATUS)).