324 lines
8.2 KiB
C
324 lines
8.2 KiB
C
#include "scheme48.h"
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#include <stdio.h>
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/* ODBC header files */
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#include <sql.h>
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#include <sqlext.h>
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#define ERROR_MSG_BUFFER_LEN 255
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#define ODBC_MAX_DRIVER_NAME_LEN 255
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#define ODBC_GET_INFO_MAX_LEN 255
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#define ODBC_GET_CONNECT_ATTR_MAX_LEN 255
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#define ODBC_GET_STMT_ATTR_MAX_LEN 255
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#define ODBC_GET_DATA_MAX_STR_LEN 255
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#define ODBC_DESCRIBE_COL_MAX_STR_LEN 255
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#define ODBC_DEBUG_MSGS 1
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#define ODBC_RAISE_EXCEPTION(MSG) s48_raise_string_os_error(MSG)
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#ifdef ODBC_DEBUG_MSGS
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#define ODBC_DEBUG_DIAGREC(ht, h) odbc_debug_msgs(ht, h);
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#else
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#define ODBC_DEBUG_DIAGREC(ht, h) ;
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#endif
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#ifdef ODBC_DEBUG_MSGS
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#define ODBC_DEBUG_PRINTF(str) printf(str);
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#define ODBC_DEBUG_PRINTF_ARG1(str, arg) printf(str, arg);
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#define ODBC_DEBUG_PRINTF_ARG2(str, arg1, arg2) printf(str, arg1, arg2);
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#else
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#define ODBC_DEBUG_PRINTF(str) ;
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#define ODBC_DEBUG_PRINTF_ARG1(str, arg) ;
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#define ODBC_DEBUG_PRINTF_ARG2(str, arg1, arg2) ;
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#endif
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/* offsets for scheme records */
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/* corresponds to sql-date */
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static s48_value sql_date_record_type = S48_FALSE;
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#define SR_SQL_DATE_YEAR 0
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#define SR_SQL_DATE_MONTH 1
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#define SR_SQL_DATE_DAY 2
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/* corresponds to sql-time */
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static s48_value sql_time_record_type = S48_FALSE;
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#define SR_SQL_TIME_HOUR 0
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#define SR_SQL_TIME_MINUTE 1
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#define SR_SQL_TIME_SECOND 2
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/* corresponds to sql-timestamp */
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static s48_value sql_timestamp_record_type = S48_FALSE;
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#define SR_SQL_TIMESTAMP_YEAR 0
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#define SR_SQL_TIMESTAMP_MONTH 1
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#define SR_SQL_TIMESTAMP_DAY 2
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#define SR_SQL_TIMESTAMP_HOUR 3
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#define SR_SQL_TIMESTAMP_MINUTE 4
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#define SR_SQL_TIMESTAMP_SECOND 5
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#define SR_SQL_TIMESTAMP_FRACTION 6
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/* corresponds to sql-numeric */
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#define SR_SQL_NUMERIC_PRECISION 0
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#define SR_SQL_NUMERIC_SCALE 1
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#define SR_SQL_NUMERIC_SIGN 2
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#define SR_SQL_NUMERIC_VALUE 3
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/* corresponds to odbc-column */
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static s48_value odbc_column_record_type = S48_FALSE;
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#define SR_ODBC_COLUMN_NAME 0
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#define SR_ODBC_COLUMN_TYPE 1
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#define SR_ODBC_COLUMN_SIZE 2
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#define SR_ODBC_COLUMN_DIGITS 3
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#define SR_ODBC_COLUMN_NULLABLE 4
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/* corresponds to odbc-diag */
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static s48_value odbc_diag_record_type = S48_FALSE;
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#define SR_ODBC_DIAG_SQL_STATE 0
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#define SR_ODBC_DIAG_NATIVE_ERROR 1
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#define SR_ODBC_DIAG_MESSAGE 2
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/*
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*
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* PART 1
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*
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* Connecting to a data source
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*
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*/
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/* Call SQLAllocHandle and get an environment handle. After that
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* call odbc_set_environment to set the ODBC version */
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s48_value odbc_alloc_environment_handle();
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/* given a valid environment handle (type SQLHENV) this function
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* sets the environment attributes. This needs to be done before
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* allocating a connection handle */
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void odbc_sql_set_env_attr(SQLHENV env_handle);
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/* Given a valid environment handle get a connection handle */
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s48_value odbc_alloc_connection_handle(s48_value env_handle);
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/* Given a valid connection handle get a statement handle */
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s48_value odbc_alloc_statement_handle(s48_value stmt_handle);
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/* Connect to a server */
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s48_value odbc_sql_connect(s48_value connection_handle,
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s48_value ds_name,
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s48_value user_name,
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s48_value authentication);
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/*
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*
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* PART 2
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*
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* Obtaining information about a driver and data source
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*
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*/
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/* Returns a list of available data sources. */
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s48_value odbc_sql_data_sources(s48_value env_handle);
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/* Returns the list of installed drivers and their attributes. */
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s48_value odbc_sql_drivers(s48_value env_handle);
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/* Returns information about a specific driver and data source.
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* (use if the information is an integer) */
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s48_value odbc_sql_get_info_int(s48_value conn_handle, s48_value info_key);
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/* Returns information about a specific driver and data source.
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* (use if the information is a string) */
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s48_value odbc_sql_get_info_string(s48_value conn_handle, s48_value info_key);
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/* Returns supported driver functions. */
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s48_value odbc_sql_get_func_exists(s48_value conn_handle, s48_value fun_id);
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/* Returns information about supported data types. */
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s48_value odbc_sql_get_type_info(s48_value stmt_handle, s48_value data_type);
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/*
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*
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* PART 3
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*
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* Setting and retrieving driver attributes
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*
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*/
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s48_value odbc_sql_set_connect_attr_int(s48_value conn_handle,
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s48_value attribute,
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s48_value value);
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s48_value odbc_sql_set_connect_attr_string(s48_value conn_handle,
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s48_value attribute,
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s48_value value);
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s48_value odbc_sql_get_connect_attr_string(s48_value conn_handle,
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s48_value attribute);
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s48_value odbc_sql_get_connect_attr_int(s48_value conn_handle,
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s48_value attribute);
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s48_value odbc_sql_set_env_attr_int(s48_value env_handle,
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s48_value attribute,
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s48_value value);
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s48_value odbc_sql_get_env_attr_int(s48_value env_handle,
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s48_value attribute,
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s48_value value);
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s48_value odbc_sql_set_stmt_attr_int(s48_value stmt_handle,
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s48_value attribute,
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s48_value value);
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s48_value odbc_sql_set_stmt_attr_string(s48_value stmt_handle,
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s48_value attribute,
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s48_value value);
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s48_value odbc_sql_get_stmt_attr_int(s48_value stmt_handle,
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s48_value attribute);
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s48_value odbc_sql_get_stmt_attr_string(s48_value stmt_handle,
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s48_value attribute);
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/*
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*
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* part 4
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*
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* Setting and retrieving descriptor fields
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*
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*/
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/*
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*
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* PART 5
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*
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* Preparing SQL requests
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*
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*/
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/* Prepare a SQL statement for execution */
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s48_value odbc_sql_prepare(s48_value stmt_handle, s48_value stmt_txt);
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s48_value odbc_sql_bind_parameter_exec_out(s48_value stmt_handle,
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s48_value param_vals);
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/*
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*
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* PART 6
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*
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* Submitting requests
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*
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*/
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s48_value odbc_sql_execute(s48_value stmt_handle);
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s48_value odbc_sql_execute_direct(s48_value stmt_handle, s48_value stmt);
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/*
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*
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* PART 7
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*
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* Retrieving results and information about results
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*
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*/
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s48_value odbc_sql_get_data(s48_value stmt_handle,
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s48_value column_number,
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s48_value target_type);
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void check_sql_get_data_result(SQLRETURN retval, SQLHSTMT stmt_handle);
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s48_value odbc_sql_fetch(s48_value stmt_handle);
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s48_value odbc_sql_num_result_cols(s48_value stmt_handle);
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s48_value odbc_sql_describe_col(s48_value stmt_handle, s48_value column_number);
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/*
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*
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* PART 8
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*
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* Obtaining information about the data source's
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* system tables (catalog functions)
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*
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*/
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/*
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*
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* PART 9
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*
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* Terminating a statement
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*
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*/
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/* Ends statement processing, discards pending resilt, and,
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* optionally, frees all resources associated with the
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* statement handle */
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s48_value odbc_sql_free_statement(s48_value stmt_handle, s48_value option);
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/* Closes a cursor that has been opened on a statement handle */
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s48_value odbc_sql_close_cursor(s48_value stmt_handle);
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/* Cancels an SQL statement */
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s48_value odbc_sql_cancel(s48_value stmt_handle);
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/* Commits or rolls back a transaction */
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s48_value odbc_sql_endtran(s48_value handle_type, s48_value handle,
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s48_value completion_type);
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/*
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*
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* PART 10
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*
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* Terminating a connection
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*
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*/
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/* Closes the connection */
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s48_value odbc_sql_disconnect(s48_value conn_handle);
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/* Free a handle */
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s48_value odbc_sql_free_handle(s48_value handle_type, s48_value handle);
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/*
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*
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* PART 11
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*
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* misc. functions
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*
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*/
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s48_value odbc_sql_get_diag_recs(s48_value handle_type, s48_value handle);
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#ifdef ODBC_DEBUG_MSGS
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/* print detailed debug information */
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void odbc_debug_msgs(SQLSMALLINT handle_type, SQLHANDLE handle);
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#endif
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/* convert Scheme sql-date record to SQL_DATE_STRUCT */
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void sql_date_record_to_struct(s48_value sql_date, SQL_DATE_STRUCT *ds);
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/* convert SQL_DATE_STRUCT to Scheme sql-date record */
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s48_value struct_to_sql_date_record(SQL_DATE_STRUCT *ds);
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/* convert Scheme sql-time record to SQL_TIME_STRUCT */
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void sql_time_record_to_struct(s48_value sql_time, SQL_TIME_STRUCT *ts);
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/* convert SQL_TIME_STRUCT to Scheme sql-time record */
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s48_value struct_to_sql_time_record(SQL_TIME_STRUCT *ts);
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/* convert SQL_TIME_STRUCT to Scheme sql-time record */
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s48_value struct_to_sql_time_record(SQL_TIME_STRUCT *ts);
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/* convert Scheme sql-timestamp record to SQL_TIMESTAMP_STRUCT */
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void sql_timestamp_record_to_struct(s48_value sql_timestamp,
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SQL_TIMESTAMP_STRUCT *ts);
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void s48_init_odbc(void);
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