scsh-0.6/scsh/odbc/odbc.h

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#include "scheme48.h"
#include <stdio.h>
/* ODBC header files */
#include <sql.h>
#include <sqlext.h>
#include <sqltypes.h>
/* darwin 6.1 sql header files do not define SQLLEN */
#ifndef SQLLEN
#define SQLLEN SQLINTEGER
#endif
#define ERROR_MSG_BUFFER_LEN 255
#define ODBC_MAX_STR_LEN 255
#define ODBC_MAX_DRIVER_NAME_LEN ODBC_MAX_STR_LEN
#define ODBC_GET_INFO_MAX_LEN ODBC_MAX_STR_LEN
#define ODBC_GET_CONNECT_ATTR_MAX_LEN ODBC_MAX_STR_LEN
#define ODBC_GET_STMT_ATTR_MAX_LEN ODBC_MAX_STR_LEN
#define ODBC_GET_DATA_MAX_STR_LEN ODBC_MAX_STR_LEN
#define ODBC_DESCRIBE_COL_MAX_STR_LEN ODBC_MAX_STR_LEN
#define ODBC_MAX_CURSOR_NAME_STR_LEN ODBC_MAX_STR_LEN
#define ODBC_MAX_NATIVE_SQL_STR_LEN ODBC_MAX_STR_LEN
#define ODBC_MAX_GET_DESC_FIELD_STR_LEN ODBC_MAX_STR_LEN
#define ODBC_RETVAL_BUFFER_INITIAL_SIZE 3
#define ODBC_DEBUG_MSGS 1
#define ODBC_RAISE_EXCEPTION(MSG) s48_raise_string_os_error(MSG)
#ifdef ODBC_DEBUG_MSGS
#define ODBC_DEBUG_DIAGREC(ht, h) odbc_debug_msgs(ht, h);
#else
#define ODBC_DEBUG_DIAGREC(ht, h) ;
#endif
#ifdef ODBC_DEBUG_MSGS
#define ODBC_DEBUG_PRINTF_1(str) printf(str);
#define ODBC_DEBUG_PRINTF_2(str, arg) printf(str, arg);
#define ODBC_DEBUG_PRINTF_3(str, arg1, arg2) printf(str, arg1, arg2);
#define ODBC_DEBUG_PRINTF_4(str, arg1, arg2, arg3) printf(str, arg1, arg2, arg3);
#define ODBC_DEBUG_PRINTF_5(str, arg1, arg2, arg3, arg4) printf(str, arg1, arg2, arg3, arg4);
#else
#define ODBC_DEBUG_PRINTF_1(str) ;
#define ODBC_DEBUG_PRINTF_2(str, arg) ;
#define ODBC_DEBUG_PRINTF_3(str, arg1, arg2) ;
#define ODBC_DEBUG_PRINTF_4(str, arg1, arg2, arg3) ;
#define ODBC_DEBUG_PRINTF_5(str, arg1, arg2, arg3, arg4) ;
#endif
/* offsets for scheme records */
/* some useful macros */
#define ODBC_SUCCESS(retval) ((retval == SQL_SUCCESS) || (retval == SQL_SUCCESS_WITH_INFO))
/* corresponds to sql-date */
static s48_value sql_date_record_type = S48_FALSE;
#define SR_SQL_DATE_YEAR 0
#define SR_SQL_DATE_MONTH 1
#define SR_SQL_DATE_DAY 2
/* corresponds to sql-time */
static s48_value sql_time_record_type = S48_FALSE;
#define SR_SQL_TIME_HOUR 0
#define SR_SQL_TIME_MINUTE 1
#define SR_SQL_TIME_SECOND 2
/* corresponds to sql-timestamp */
static s48_value sql_timestamp_record_type = S48_FALSE;
#define SR_SQL_TIMESTAMP_YEAR 0
#define SR_SQL_TIMESTAMP_MONTH 1
#define SR_SQL_TIMESTAMP_DAY 2
#define SR_SQL_TIMESTAMP_HOUR 3
#define SR_SQL_TIMESTAMP_MINUTE 4
#define SR_SQL_TIMESTAMP_SECOND 5
#define SR_SQL_TIMESTAMP_FRACTION 6
/* corresponds to sql-numeric */
#define SR_SQL_NUMERIC_PRECISION 0
#define SR_SQL_NUMERIC_SCALE 1
#define SR_SQL_NUMERIC_SIGN 2
#define SR_SQL_NUMERIC_VALUE 3
/* corresponds to odbc-column */
static s48_value odbc_column_record_type = S48_FALSE;
#define SR_ODBC_COLUMN_NAME 0
#define SR_ODBC_COLUMN_TYPE 1
#define SR_ODBC_COLUMN_SIZE 2
#define SR_ODBC_COLUMN_DIGITS 3
#define SR_ODBC_COLUMN_NULLABLE 4
/* corresponds to odbc-diag */
static s48_value odbc_diag_record_type = S48_FALSE;
#define SR_ODBC_DIAG_SQL_STATE 0
#define SR_ODBC_DIAG_NATIVE_ERROR 1
#define SR_ODBC_DIAG_MESSAGE 2
/* corresponds to odbc-parameter */
static s48_value odbc_parameter_record_type = S48_FALSE;
#define SR_ODBC_PARAMETER_TYPE 0
#define SR_ODBC_PARAMETER_SIZE 1
#define SR_ODBC_PARAMETER_DIGITS 2
#define SR_ODBC_PARAMETER_NULLABLE 3
/* stuff needed for SQLBindCol() */
/* correspons to bindcol-buffer */
static s48_value bindcol_buffer_record_type = S48_FALSE;
#define SR_BINDCOL_BUFFER_POINTER 0
#define SR_BINDCOL_BUFFER_LENGTH 1
#define SR_BINDCOL_BUFFER_TARGET_TYPE 2
static s48_value signal_unbound_column = S48_FALSE;
static s48_value signal_buffer_exceeded = S48_FALSE;
typedef struct bindcol_col_rec *ColumnRecPtr;
typedef struct bindcol_col_rec {
SQLUSMALLINT col_no;
void *col_buffer;
SQLSMALLINT target_type;
SQLLEN buffer_len;
SQLLEN buffer_needed;
ColumnRecPtr next;
} ColumnRec;
typedef struct bindcol_stmt_rec *StmtRecPtr;
typedef struct bindcol_stmt_rec {
SQLHSTMT stmt_handle;
ColumnRecPtr col_recs;
StmtRecPtr next;
} StmtRec;
/* global variables */
StmtRecPtr global_bindcol_list = NULL;
/* helper functions needed for SQLBindCol() */
ColumnRecPtr bindcol_lookup_binding(SQLHSTMT stmt_handle, SQLUSMALLINT column_no);
s48_value bindcol_lookup_binding_scheme(s48_value stmt_handle, s48_value column_no);
void bindcol_bind_column(SQLHSTMT stmt_handle, SQLUSMALLINT column_no, ColumnRecPtr new_col);
void bindcol_unbind_colum(SQLHSTMT stmt_handle, SQLUSMALLINT column_no);
s48_value bindcol_finalize_bindcols(s48_value stmt_handle);
s48_value odbc_sql_bindcol(s48_value stmt_handle, s48_value column_no,
s48_value target_type, s48_value buffer_len);
/*
*
* PART 1
*
* Connecting to a data source
*
*/
/* Call SQLAllocHandle and get an environment handle. After that
* call odbc_set_environment to set the ODBC version */
s48_value odbc_alloc_environment_handle();
/* given a valid environment handle (type SQLHENV) this function
* sets the environment attributes. This needs to be done before
* allocating a connection handle */
void odbc_sql_set_env_attr(SQLHENV env_handle);
/* Given a valid environment handle get a connection handle */
s48_value odbc_alloc_connection_handle(s48_value env_handle);
/* Given a valid connection handle get a statement handle */
s48_value odbc_alloc_statement_handle(s48_value stmt_handle);
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/* for ODBC 1.0 compatibility */
s48_value odbc_sql_alloc_env();
s48_value odbc_sql_alloc_connect(s48_value env_handle);
s48_value odbc_sql_alloc_stmt(s48_value conn_handle);
/* Connect to a server */
s48_value odbc_sql_connect(s48_value connection_handle,
s48_value ds_name,
s48_value user_name,
s48_value authentication);
s48_value odbc_sql_browse_connect(s48_value conn_handle, s48_value conn_string);
/*
*
* PART 2
*
* Obtaining information about a driver and data source
*
*/
/* Returns a list of available data sources. */
s48_value odbc_sql_data_sources(s48_value env_handle);
/* Returns the list of installed drivers and their attributes. */
s48_value odbc_sql_drivers(s48_value env_handle);
/* Returns information about a specific driver and data source.
* (use if the information is an integer) */
s48_value odbc_sql_get_info_int(s48_value conn_handle, s48_value info_key);
/* Returns information about a specific driver and data source.
* (use if the information is a string) */
s48_value odbc_sql_get_info_string(s48_value conn_handle, s48_value info_key);
/* Returns supported driver functions. */
s48_value odbc_sql_get_func_exists(s48_value conn_handle, s48_value fun_id);
/* Returns information about supported data types. */
s48_value odbc_sql_get_type_info(s48_value stmt_handle, s48_value data_type);
/*
*
* PART 3
*
* Setting and retrieving driver attributes
*
*/
s48_value odbc_sql_set_connect_attr_int(s48_value conn_handle,
s48_value attribute,
s48_value value);
s48_value odbc_sql_set_connect_attr_string(s48_value conn_handle,
s48_value attribute,
s48_value value);
s48_value odbc_sql_get_connect_attr_string(s48_value conn_handle,
s48_value attribute);
s48_value odbc_sql_get_connect_attr_int(s48_value conn_handle,
s48_value attribute);
s48_value odbc_sql_set_env_attr_int(s48_value env_handle,
s48_value attribute,
s48_value value);
s48_value odbc_sql_get_env_attr_int(s48_value env_handle,
s48_value attribute,
s48_value value);
s48_value odbc_sql_set_stmt_attr_int(s48_value stmt_handle,
s48_value attribute,
s48_value value);
s48_value odbc_sql_set_stmt_attr_string(s48_value stmt_handle,
s48_value attribute,
s48_value value);
s48_value odbc_sql_get_stmt_attr_int(s48_value stmt_handle,
s48_value attribute);
s48_value odbc_sql_get_stmt_attr_string(s48_value stmt_handle,
s48_value attribute);
/*
*
* part 4
*
* Setting and retrieving descriptor fields
*
*/
/* Returns the value of a single descriptor field (for integers) */
s48_value odbc_sql_get_desc_field_int(s48_value desc_handle, s48_value rec_number,
s48_value field_id);
/* Returns the value of a single descriptor field (for strings/binary data) */
s48_value odbc_sql_get_desc_field_string(s48_value desc_handle, s48_value rec_number,
s48_value field_id);
/*
*
* PART 5
*
* Preparing SQL requests
*
*/
/* Prepare a SQL statement for execution */
s48_value odbc_sql_prepare(s48_value stmt_handle, s48_value stmt_txt);
s48_value odbc_sql_bind_parameter_exec_out(s48_value stmt_handle,
s48_value param_vals);
s48_value odbc_sql_get_cursor_name(s48_value stmt_handle);
void odbc_sql_set_cursor_name(s48_value stmt_handle, s48_value cursorname);
/*
*
* PART 6
*
* Submitting requests
*
*/
s48_value odbc_sql_execute(s48_value stmt_handle);
s48_value odbc_sql_execute_direct(s48_value stmt_handle, s48_value stmt);
/* Returns the text of an SQL statement as translated by the driver. */
s48_value odbc_sql_native_sql(s48_value conn_handle, s48_value stmt_txt);
/* Returns the description for a specific parameter in a statement */
s48_value odbc_sql_describe_param(s48_value stmt_handle, s48_value parameter_no);
/* Returns the number of parameters in a statement */
s48_value odbc_sql_num_params(s48_value stmt_handle);
/*
*
* PART 7
*
* Retrieving results and information about results
*
*/
s48_value odbc_sql_row_count(s48_value stmt_handle);
s48_value odbc_sql_get_data(s48_value stmt_handle, s48_value column_number,
s48_value target_type, s48_value buffer_size);
/* Positions a cursor within a fetched block of data and allows an application
to refresh data in the rowset or to update or delete data in the result
set */
s48_value odbc_sql_set_pos(s48_value stmt_handle, s48_value row_number,
s48_value operation, s48_value lock_type);
/* Performs bulk insertions and bulk bookmark operations, including
update, delete, and fetch by bookmark. */
s48_value odbc_sql_bulk_operations(s48_value stmt_handle, s48_value operation);
/* Determines whether there are more result sets available and, if so,
initializes processing for the next result set */
s48_value odbc_sql_more_results(s48_value stmt_handle);
s48_value odbc_sql_fetch(s48_value stmt_handle);
s48_value odbc_sql_num_result_cols(s48_value stmt_handle);
s48_value odbc_sql_describe_col(s48_value stmt_handle, s48_value column_number);
/* Describes attributes of a column in the result set */
s48_value odbc_sql_col_attribute(s48_value stmt_handle, s48_value column_number,
s48_value field_id);
/*
*
* PART 8
*
* Obtaining information about the data source's
* system tables (catalog functions)
*
*/
/* Returns a list of columns and associated privileges for one or more tables */
s48_value odbc_sql_column_privileges(s48_value stmt_handle, s48_value catalog_name,
s48_value schema_name, s48_value table_name,
s48_value column_name);
/* Returns the list of column names in a specified table */
s48_value odbc_sql_columns(s48_value stmt_handle, s48_value catalog_name,
s48_value schema_name, s48_value table_name,
s48_value column_name);
/* Returns a list of columns names that make up foreign keys,
if the exist for a specified table */
s48_value odbc_sql_foreign_keys(s48_value stmt_handle, s48_value pk_catalog_name,
s48_value pk_schema_name, s48_value pk_table_name,
s48_value fk_catalog_name, s48_value fk_schema_name,
s48_value fk_table_name);
/* Returns the list of column names that make up the primary key for a table */
s48_value odbc_sql_primary_keys(s48_value stmt_handle, s48_value catalog_name,
s48_value schema_name, s48_value table_name);
/* Returns the list of input and output parameters, as well as the columns
that make up the result set for the specified procedures */
s48_value odbc_sql_procedure_columns(s48_value stmt_handle, s48_value catalog_name,
s48_value schema_name, s48_value proc_name,
s48_value column_name);
/* Returns the list of procedure names stored in a specific data source. */
s48_value odbc_sql_procedures(s48_value stmt_handle, s48_value catalog_name,
s48_value schema_name, s48_value proc_name);
/* Returns information about the optimal set of columns that uniquely identifies
a row in a specified table, or the columns that are automatically updated
when any value in the row is updated by a transaction */
s48_value odbc_sql_special_columns(s48_value stmt_handle, s48_value identifier_type,
s48_value catalog_name, s48_value schema_name,
s48_value table_name, s48_value scope,
s48_value nullable);
/* Returns statistics about a single table and the list of indexes associated
with the table */
s48_value odbc_sql_statistics(s48_value stmt_handle, s48_value catalog_name,
s48_value schema_name, s48_value table_name,
s48_value unique, s48_value reserved);
/* Returns a list of tables and the privileges associated with each table */
s48_value odbc_sql_table_privileges(s48_value stmt_handle, s48_value catalog_name,
s48_value schema_name, s48_value table_name);
/* Returns the list of table names stored in a specific data source */
s48_value odbc_sql_tables(s48_value stmt_handle, s48_value catalog_name,
s48_value schema_name, s48_value table_name,
s48_value table_type);
/*
*
* PART 9
*
* Terminating a statement
*
*/
/* Ends statement processing, discards pending resilt, and,
* optionally, frees all resources associated with the
* statement handle */
s48_value odbc_sql_free_statement(s48_value stmt_handle, s48_value option);
/* Closes a cursor that has been opened on a statement handle */
s48_value odbc_sql_close_cursor(s48_value stmt_handle);
/* Cancels an SQL statement */
s48_value odbc_sql_cancel(s48_value stmt_handle);
/* Commits or rolls back a transaction */
s48_value odbc_sql_endtran(s48_value handle_type, s48_value handle,
s48_value completion_type);
/*
*
* PART 10
*
* Terminating a connection
*
*/
/* Closes the connection */
s48_value odbc_sql_disconnect(s48_value conn_handle);
/* Free a handle */
s48_value odbc_sql_free_handle(s48_value handle_type, s48_value handle);
/*
*
* PART 11
*
* misc. functions
*
*/
s48_value odbc_sql_get_diag_recs(s48_value handle_type, s48_value handle);
#ifdef ODBC_DEBUG_MSGS
/* print detailed debug information */
void odbc_debug_msgs(SQLSMALLINT handle_type, SQLHANDLE handle);
#endif
/* convert Scheme sql-date record to SQL_DATE_STRUCT */
void sql_date_record_to_struct(s48_value sql_date, SQL_DATE_STRUCT *ds);
/* convert SQL_DATE_STRUCT to Scheme sql-date record */
s48_value struct_to_sql_date_record(SQL_DATE_STRUCT *ds);
/* convert Scheme sql-time record to SQL_TIME_STRUCT */
void sql_time_record_to_struct(s48_value sql_time, SQL_TIME_STRUCT *ts);
/* convert SQL_TIME_STRUCT to Scheme sql-time record */
s48_value struct_to_sql_time_record(SQL_TIME_STRUCT *ts);
/* convert SQL_TIME_STRUCT to Scheme sql-time record */
s48_value struct_to_sql_time_record(SQL_TIME_STRUCT *ts);
/* convert Scheme sql-timestamp record to SQL_TIMESTAMP_STRUCT */
void sql_timestamp_record_to_struct(s48_value sql_timestamp,
SQL_TIMESTAMP_STRUCT *ts);
void odbc_sql_alloc(void **buffer, size_t buffer_len, size_t type_len);
size_t sizeof_sql_c_type_identifier(SQLSMALLINT ctypeid);
s48_value buffer_to_s48_value(void *buffer, SQLSMALLINT ctypeid);
void s48_init_odbc(void);