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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2002-2009. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*
*/
/* ----------------------------- CONSTANTS ------------------------------*/
#define MAXCOLSIZE 8001
#define MAX_ERR_MSG 1024
#define ERRMSG_HEADR_SIZE 20
#define MAX_CONN_STR_OUT 1024
#define MAX_NAME 255
#define TRUNCATED "01004"
#define INFO "00000"
#define SQL_STATE_SIZE 6
#define TRUE 1
#define FALSE 0
#define WAIT_FOR_NEW_MSG 0
#define NEW_MSG_ARRIVED 1
#define DEC_NUM_LENGTH 50
/* 0 in this case (SQL_ATTR_CONNECTION_TIMEOUT) corresponds to erlang
infinity. Erlang will handle all timeouts so we do not want any in the
portprogram. */
#define TIME_OUT 0
/* 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 Erlang. */
#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
/* EXIT CODES */
#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
/* COL_SIZE */
#define COL_SQL_SMALLINT 5
#define COL_SQL_INTEGER 10
#define COL_SQL_REAL 7
#define COL_SQL_DOUBLE 15
#define COL_SQL_TINYINT 4
/* Types of parameters given to param_query*/
#define USER_SMALL_INT 1
#define USER_INT 2
#define USER_DECIMAL 3
#define USER_NMERIC 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
/*------------------------ TYPDEFS ----------------------------------*/
typedef unsigned char byte;
typedef int Boolean;
typedef struct {
SQLSMALLINT c;
SQLSMALLINT sql;
SQLUINTEGER col_size;
SQLSMALLINT decimal_digits;
SQLLEN len;
SQLLEN strlen_or_indptr;
SQLLEN *strlen_or_indptr_array;
} col_type;
typedef struct {
char *buffer;
col_type type;
} db_column;
typedef struct {
int length;
byte *buffer;
Boolean dyn_alloc;
} db_result_msg;
typedef struct {
SQLCHAR sqlState[SQL_STATE_SIZE];
byte error_msg[MAX_ERR_MSG];
} diagnos;
typedef struct {
col_type type;
int offset;
SQLUSMALLINT input_output_type;
union {
byte *string;
SQLINTEGER *integer;
double *floating;
Boolean *bool;
}values;
} param_array;
typedef struct {
SQLUSMALLINT params_processed;
SQLUSMALLINT *param_status_array;
} param_status;
typedef struct {
SQLHDBC connection_handle;
SQLHENV environment_handle;
SQLHSTMT statement_handle;
db_column *columns;
int number_of_columns;
ei_x_buff dynamic_buffer;
Boolean associated_result_set;
Boolean use_srollable_cursors;
Boolean tuple_row;
Boolean exists_more_result_sets;
Boolean param_query;
Boolean out_params;
} db_state;
typedef enum {
ERL_ODBC_IN, ERL_ODBC_OUT, ERL_ODBC_INOUT
} in_or_out_type;
#define connection_handle(db_state) (db_state -> connection_handle)
#define environment_handle(db_state) (db_state -> environment_handle)
#define statement_handle(db_state) (db_state -> statement_handle)
#define columns(db_state) (db_state -> columns)
#define nr_of_columns(db_state) (db_state -> number_of_columns)
#define dynamic_buffer(db_state) (db_state -> dynamic_buffer)
#define associated_result_set(db_state) (db_state -> associated_result_set)
#define use_srollable_cursors(db_state) (db_state -> use_srollable_cursors)
#define tuple_row(db_state) (db_state -> tuple_row)
#define exists_more_result_sets(db_state) (db_state -> exists_more_result_sets)
#define param_query(db_state) (db_state -> param_query)
#define out_params(db_state) (db_state -> out_params)
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