;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
-;;;; Name: odbc-ff-interface.lisp
-;;;; Purpose: Function definitions for UFFI interface to ODBC
-;;;; Author: Kevin M. Rosenberg, Paul Meurer
+;;;; Name: odbc-api.lisp
+;;;; Purpose: Low-level ODBC API using UFFI
+;;;; Authors: Kevin M. Rosenberg and Paul Meurer
;;;;
-;;;; $Id: odbc-package.lisp 7061 2003-09-07 06:34:45Z kevin $
+;;;; $Id$
;;;;
;;;; This file, part of CLSQL, is Copyright (c) 2004 by Kevin M. Rosenberg
;;;; and Copyright (C) Paul Meurer 1999 - 2001. All rights reserved.
(in-package #:odbc)
-(defvar *null* (make-null-pointer :byte))
-(defvar *binary-format* :unsigned-byte-vector)
-(defvar *time-conversion-function* 'identity)
-(defvar *trace-sql* nil)
+(defvar *null* nil
+ "Lisp representation of SQL Null value, default = nil.
+May be locally bound to something else if a certain type is necessary.")
+
-(defun %null-ptr ()
- (make-null-pointer :byte))
+(defvar *binary-format* :unsigned-byte-vector)
+(defvar *time-conversion-function*
+ (lambda (universal-time &optional fraction)
+ (declare (ignore fraction))
+ (clsql-sys:format-time
+ nil (clsql-sys:utime->time universal-time)
+ :format :iso)
+ #+ignore
+ universal-time)
+ "Bound to a function that converts from a Lisp universal time fixnum (and a fractional
+as possible second argument) to the desired representation of date/time/timestamp. By default, returns an iso-timestring.")
+
+(defvar +null-ptr+ (make-null-pointer :byte))
+(defparameter +null-handle-ptr+ (make-null-pointer :void))
+(defvar *info-output* nil
+ "Stream to send SUCCESS_WITH_INFO messages.")
(defmacro %put-str (ptr string &optional max-length)
(let ((size (gensym)))
`(let ((,size (length ,string)))
(when (and ,max-length (> ,size ,max-length))
- (error "string \"~a\" of length ~d is longer than max-length: ~d"
- ,string ,size ,max-length))
- (dotimes (i ,size)
- (setf (deref-array ,ptr '(:array :unsigned-char) i) (char ,string i)))
- (setf (deref-array ,ptr '(:array :unsigned-char) ,size) 0))))
+ (error 'clsql:sql-database-data-error
+ :message
+ (format nil "string \"~a\" of length ~d is longer than max-length: ~d"
+ ,string ,size ,max-length)))
+ (with-cast-pointer (char-ptr ,ptr :byte)
+ (dotimes (i ,size)
+ (setf (deref-array char-ptr '(:array :byte) i)
+ (char-code (char ,string i))))
+ (setf (deref-array char-ptr '(:array :byte) ,size) 0)))))
(defun %cstring-into-vector (ptr vector offset size-in-bytes)
- (dotimes (i size-in-bytes)
- (setf (aref vector offset)
- (deref-array ptr '(:array :unsigned-char) i))
- (incf offset))
- offset)
-
+ (dotimes (i size-in-bytes)
+ (setf (schar vector offset)
+ (ensure-char-character
+ (deref-array ptr '(:array :unsigned-char) i)))
+ (incf offset))
+ offset)
+
(defun handle-error (henv hdbc hstmt)
- (with-foreign-objects ((sql-state '(:array :unsigned-char 256))
- (error-message '(:array :unsigned-char
- #.$SQL_MAX_MESSAGE_LENGTH))
- (error-code :long)
- (msg-length :short))
- (SQLError henv hdbc hstmt sql-state
- error-code error-message
- $SQL_MAX_MESSAGE_LENGTH msg-length)
- (values
- (convert-from-foreign-string error-message)
- (convert-from-foreign-string sql-state)
- (deref-pointer msg-length :short)
- (deref-pointer error-code :long))))
-
-; test this: return a keyword for efficiency
+ (let ((sql-state (allocate-foreign-string 256))
+ (error-message (allocate-foreign-string #.$SQL_MAX_MESSAGE_LENGTH)))
+ (with-foreign-objects ((error-code #.$ODBC-LONG-TYPE)
+ (msg-length :short))
+ (SQLError henv hdbc hstmt sql-state
+ error-code error-message
+ #.$SQL_MAX_MESSAGE_LENGTH msg-length)
+ (let ((err (convert-from-foreign-string error-message))
+ (state (convert-from-foreign-string sql-state)))
+ (free-foreign-object error-message)
+ (free-foreign-object sql-state)
+ (values
+ err
+ state
+ (deref-pointer msg-length :short)
+ (deref-pointer error-code #.$ODBC-LONG-TYPE))))))
+
(defun sql-state (henv hdbc hstmt)
- (with-foreign-objects ((sql-state '(:array :unsigned-char 256))
- (error-message '(:array :unsigned-char
- #.$SQL_MAX_MESSAGE_LENGTH))
- (error-code :long)
- (msg-length :short))
- (SQLError henv hdbc hstmt sql-state error-code
- error-message $SQL_MAX_MESSAGE_LENGTH msg-length)
- (convert-from-foreign-string sql-state) ;(%cstring-to-keyword sql-state)
- ))
+ (let ((sql-state (allocate-foreign-string 256))
+ (error-message (allocate-foreign-string #.$SQL_MAX_MESSAGE_LENGTH)))
+ (with-foreign-objects ((error-code #.$ODBC-LONG-TYPE)
+ (msg-length :short))
+ (SQLError henv hdbc hstmt sql-state error-code
+ error-message #.$SQL_MAX_MESSAGE_LENGTH msg-length)
+ (let ((state (convert-from-foreign-string sql-state)))
+ (free-foreign-object error-message)
+ (free-foreign-object sql-state)
+ state
+ ;; test this: return a keyword for efficiency
+ ;;(%cstring-to-keyword state)
+ ))))
(defmacro with-error-handling ((&key henv hdbc hstmt (print-info t))
odbc-call &body body)
(let ((result-code (gensym "RC-")))
`(let ((,result-code ,odbc-call))
+
+ ;; Check for allegro v7 & v8 bug with ODBC calls returning
+ ;; 32-bit unsigned ints, not 16-bit signed ints
+ #+(and allegro mswindows)
+ (when (> ,result-code #xFFFF)
+ (warn (format nil "16-bit return bug: result-code #x~X for expression ~S"
+ ,result-code (quote ,odbc-call)))
+ (setq ,result-code (logand ,result-code #xFFFF))
+ (when (> ,result-code #x7FFF)
+ (setq ,result-code (- ,result-code #x10000))))
+
(case ,result-code
(#.$SQL_SUCCESS
(progn ,result-code ,@body))
(#.$SQL_SUCCESS_WITH_INFO
(when ,print-info
(multiple-value-bind (error-message sql-state)
- (handle-error (or ,henv (%null-ptr))
- (or ,hdbc (%null-ptr))
- (or ,hstmt (%null-ptr)))
- (warn "[ODBC info] ~a state: ~a"
- ,result-code error-message
- sql-state)))
+ (handle-error (or ,henv +null-handle-ptr+)
+ (or ,hdbc +null-handle-ptr+)
+ (or ,hstmt +null-handle-ptr+))
+ (when *info-output*
+ (format *info-output* "[ODBC info ~A] ~A state: ~A"
+ ,result-code error-message
+ sql-state))))
(progn ,result-code ,@body))
(#.$SQL_INVALID_HANDLE
- (error "[ODBC error] Invalid handle"))
+ (error
+ 'clsql-sys:sql-database-error
+ :message "ODBC: Invalid handle"))
(#.$SQL_STILL_EXECUTING
- (error "[ODBC error] Still executing"))
+ (error
+ 'clsql-sys:sql-temporary-error
+ :message "ODBC: Still executing"))
(#.$SQL_ERROR
(multiple-value-bind (error-message sql-state)
- (handle-error (or ,henv (%null-ptr))
- (or ,hdbc (%null-ptr))
- (or ,hstmt (%null-ptr)))
- (error "[ODBC error] ~a; state: ~a" error-message sql-state)))
+ (handle-error (or ,henv +null-handle-ptr+)
+ (or ,hdbc +null-handle-ptr+)
+ (or ,hstmt +null-handle-ptr+))
+ (error
+ 'clsql-sys:sql-database-error
+ :message error-message
+ :secondary-error-id sql-state)))
+ (#.$SQL_NO_DATA_FOUND
+ (progn ,result-code ,@body))
+ ;; work-around for Allegro 7.0beta AMD64 which returns negative numbers
(otherwise
+ (multiple-value-bind (error-message sql-state)
+ (handle-error (or ,henv +null-handle-ptr+)
+ (or ,hdbc +null-handle-ptr+)
+ (or ,hstmt +null-handle-ptr+))
+ (error
+ 'clsql-sys:sql-database-error
+ :message error-message
+ :secondary-error-id sql-state))
+ #+ignore
(progn ,result-code ,@body))))))
(defun %new-environment-handle ()
- (with-foreign-object (phenv 'sql-handle-ptr)
- (with-error-handling
- ()
- (SQLAllocEnv phenv)
- (deref-pointer phenv 'sql-handle-ptr))))
+ (let ((henv
+ (with-foreign-object (phenv 'sql-handle)
+ (with-error-handling
+ ()
+ (SQLAllocHandle $SQL_HANDLE_ENV +null-handle-ptr+ phenv)
+ (deref-pointer phenv 'sql-handle)))))
+ (%set-attr-odbc-version henv $SQL_OV_ODBC3)
+ henv))
+
(defun %sql-free-environment (henv)
- (with-error-handling
+ (with-error-handling
(:henv henv)
(SQLFreeEnv henv)))
(defun %new-db-connection-handle (henv)
- (with-foreign-object (phdbc 'sql-handle-ptr)
+ (with-foreign-object (phdbc 'sql-handle)
+ (setf (deref-pointer phdbc 'sql-handle) +null-handle-ptr+)
(with-error-handling
(:henv henv)
- (SQLAllocConnect henv phdbc)
- (deref-pointer phdbc 'sql-handle-ptr))))
+ (SQLAllocHandle $SQL_HANDLE_DBC henv phdbc)
+ (deref-pointer phdbc 'sql-handle))))
(defun %free-statement (hstmt option)
- (with-error-handling
+ (with-error-handling
(:hstmt hstmt)
- (SQLFreeStmt
- hstmt
+ (SQLFreeStmt
+ hstmt
(ecase option
(:drop $SQL_DROP)
(:close $SQL_CLOSE)
(defun %sql-connect (hdbc server uid pwd)
(with-cstrings ((server-ptr server)
- (uid-ptr uid)
- (pwd-ptr pwd))
- (with-error-handling
- (:hdbc hdbc)
- (SQLConnect hdbc server-ptr $SQL_NTS uid-ptr
- $SQL_NTS pwd-ptr $SQL_NTS))))
-
+ (uid-ptr uid)
+ (pwd-ptr pwd))
+ (with-error-handling
+ (:hdbc hdbc)
+ (SQLConnect hdbc server-ptr $SQL_NTS uid-ptr
+ $SQL_NTS pwd-ptr $SQL_NTS))))
+
+(defun %sql-driver-connect (hdbc connection-string completion window-handle)
+ (with-cstring (connection-ptr connection-string)
+ (let ((completed-connection-string (allocate-foreign-string $SQL_MAX_CONN_OUT)))
+ (unwind-protect
+ (with-foreign-object (completed-connection-length :short)
+ (with-error-handling
+ (:hdbc hdbc)
+ (SQLDriverConnect hdbc
+ window-handle
+ connection-ptr $SQL_NTS
+ completed-connection-string $SQL_MAX_CONN_OUT
+ completed-connection-length
+ completion)))
+ (free-foreign-object completed-connection-string)))))
(defun %disconnect (hdbc)
- (with-error-handling
+ (with-error-handling
(:hdbc hdbc)
(SQLDisconnect hdbc)))
(defun %commit (henv hdbc)
- (with-error-handling
+ (with-error-handling
(:henv henv :hdbc hdbc)
- (SQLTransact
+ (SQLTransact
henv hdbc $SQL_COMMIT)))
(defun %rollback (henv hdbc)
- (with-error-handling
+ (with-error-handling
(:henv henv :hdbc hdbc)
- (SQLTransact
+ (SQLTransact
henv hdbc $SQL_ROLLBACK)))
; col-nr is zero-based in Lisp
(with-error-handling
(:hstmt hstmt)
(SQLBindParameter hstmt (1+ parameter-nr)
- parameter-type ;$SQL_PARAM_INPUT
+ parameter-type ;$SQL_PARAM_INPUT
c-type ;$SQL_C_CHAR
sql-type ;$SQL_VARCHAR
precision ;(1- (length str))
scale ;0
data-ptr
max-value
- out-len-ptr ;#.(%null-ptr)
+ out-len-ptr ;#.+null-ptr+
)))
(defun %sql-fetch (hstmt)
- (with-error-handling
+ (with-error-handling
(:hstmt hstmt)
(SQLFetch hstmt)))
(defun %new-statement-handle (hdbc)
- (with-foreign-object (hstmt-ptr 'sql-handle-ptr)
- (with-error-handling
- (:hdbc hdbc)
- (SQLAllocStmt hdbc hstmt-ptr)
- (deref-pointer hstmt-ptr 'sql-handle-ptr))))
+ (let ((statement-handle
+ (with-foreign-object (phstmt 'sql-handle)
+ (with-error-handling
+ (:hdbc hdbc)
+ (SQLAllocHandle $SQL_HANDLE_STMT hdbc phstmt)
+ (deref-pointer phstmt 'sql-handle)))))
+ (if (uffi:null-pointer-p statement-handle)
+ (error 'clsql:sql-database-error :message "Received null statement handle.")
+ statement-handle)))
(defun %sql-get-info (hdbc info-type)
(ecase info-type
#.$SQL_SPECIAL_CHARACTERS
#.$SQL_TABLE_TERM
#.$SQL_USER_NAME)
- (with-foreign-objects ((info-ptr '(:array :unsigned-char 1024))
- (info-length-ptr :short))
- (with-error-handling
- (:hdbc hdbc)
- #-pcl
- (SQLGetInfo hdbc info-type info-ptr 1023 info-length-ptr)
- #+pcl
- (SQLGetInfo-Str hdbc info-type info-ptr 1023 info-length-ptr)
- (convert-from-foreign-string info-ptr))))
+ (let ((info-ptr (allocate-foreign-string 1024)))
+ (with-foreign-object (info-length-ptr :short)
+ (with-error-handling
+ (:hdbc hdbc)
+ (SQLGetInfo hdbc info-type info-ptr 1023 info-length-ptr)
+ (let ((info (convert-from-foreign-string info-ptr)))
+ (free-foreign-object info-ptr)
+ info)))))
;; those returning a word
((#.$SQL_ACTIVE_CONNECTIONS
#.$SQL_ACTIVE_STATEMENTS
#.$SQL_QUOTED_IDENTIFIER_CASE
#.$SQL_TXN_CAPABLE)
(with-foreign-objects ((info-ptr :short)
- (info-length-ptr :short))
- (with-error-handling
- (:hdbc hdbc)
+ (info-length-ptr :short))
+ (with-error-handling
+ (:hdbc hdbc)
(SQLGetInfo hdbc
- info-type
- info-ptr
- 255
- info-length-ptr)
+ info-type
+ info-ptr
+ 255
+ info-length-ptr)
(deref-pointer info-ptr :short)))
)
;; those returning a long bitmask
- ((#.$SQL_ALTER_TABLE
+ ((#.$SQL_ALTER_TABLE
#.$SQL_BOOKMARK_PERSISTENCE
#.$SQL_CONVERT_BIGINT
#.$SQL_CONVERT_BINARY
#.$SQL_TIMEDATE_FUNCTIONS
#.$SQL_TXN_ISOLATION_OPTION
#.$SQL_UNION)
- (with-foreign-objects ((info-ptr :long)
- (info-length-ptr :short))
- (with-error-handling
+ (with-foreign-objects ((info-ptr #.$ODBC-LONG-TYPE)
+ (info-length-ptr :short))
+ (with-error-handling
(:hdbc hdbc)
(SQLGetInfo hdbc
- info-type
- info-ptr
- 255
- info-length-ptr)
- (deref-pointer info-ptr :long)))
+ info-type
+ info-ptr
+ 255
+ info-length-ptr)
+ (deref-pointer info-ptr #.$ODBC-LONG-TYPE)))
)
;; those returning a long integer
((#.$SQL_DEFAULT_TXN_ISOLATION
#.$SQL_MAX_CHAR_LITERAL_LEN
#.$SQL_ACTIVE_ENVIRONMENTS
)
- (with-foreign-objects ((info-ptr :long)
- (info-length-ptr :short))
- (with-error-handling
+ (with-foreign-objects ((info-ptr #.$ODBC-LONG-TYPE)
+ (info-length-ptr :short))
+ (with-error-handling
(:hdbc hdbc)
(SQLGetInfo hdbc info-type info-ptr 255 info-length-ptr)
- (deref-pointer info-ptr :long))))))
-
+ (deref-pointer info-ptr #.$ODBC-LONG-TYPE))))))
+
(defun %sql-exec-direct (sql hstmt henv hdbc)
(with-cstring (sql-ptr sql)
(with-error-handling
(deref-pointer columns-nr-ptr :short))))
(defun result-rows-count (hstmt)
- (with-foreign-objects ((row-count-ptr :long))
+ (with-foreign-objects ((row-count-ptr #.$ODBC-LONG-TYPE))
(with-error-handling (:hstmt hstmt)
(SQLRowCount hstmt row-count-ptr)
- (deref-pointer row-count-ptr :long))))
+ (deref-pointer row-count-ptr #.$ODBC-LONG-TYPE))))
;; column counting is 1-based
(defun %describe-column (hstmt column-nr)
- (with-foreign-objects ((column-name-ptr '(:array :unsigned-char 256))
- (column-name-length-ptr :short)
- (column-sql-type-ptr :short)
- (column-precision-ptr :long)
- (column-scale-ptr :short)
- (column-nullable-p-ptr :short))
- (with-error-handling (:hstmt hstmt)
- (SQLDescribeCol hstmt column-nr column-name-ptr 256
- column-name-length-ptr
- column-sql-type-ptr
- column-precision-ptr
- column-scale-ptr
- column-nullable-p-ptr)
- (values
- (convert-from-foreign-string column-name-ptr)
- (deref-pointer column-sql-type-ptr :short)
- (deref-pointer column-precision-ptr :long)
- (deref-pointer column-scale-ptr :short)
- (deref-pointer column-nullable-p-ptr :short)))))
+ (let ((column-name-ptr (allocate-foreign-string 256)))
+ (with-foreign-objects ((column-name-length-ptr :short)
+ (column-sql-type-ptr :short)
+ (column-precision-ptr #.$ODBC-ULONG-TYPE)
+ (column-scale-ptr :short)
+ (column-nullable-p-ptr :short))
+ (with-error-handling (:hstmt hstmt)
+ (SQLDescribeCol hstmt column-nr column-name-ptr 256
+ column-name-length-ptr
+ column-sql-type-ptr
+ column-precision-ptr
+ column-scale-ptr
+ column-nullable-p-ptr)
+ (let ((column-name (convert-from-foreign-string column-name-ptr)))
+ (free-foreign-object column-name-ptr)
+ (values
+ column-name
+ (deref-pointer column-sql-type-ptr :short)
+ (deref-pointer column-precision-ptr #.$ODBC-ULONG-TYPE)
+ (deref-pointer column-scale-ptr :short)
+ (deref-pointer column-nullable-p-ptr :short)))))))
;; parameter counting is 1-based
(defun %describe-parameter (hstmt parameter-nr)
(with-foreign-objects ((column-sql-type-ptr :short)
- (column-precision-ptr :long)
- (column-scale-ptr :short)
- (column-nullable-p-ptr :short))
- (with-error-handling
+ (column-precision-ptr #.$ODBC-ULONG-TYPE)
+ (column-scale-ptr :short)
+ (column-nullable-p-ptr :short))
+ (with-error-handling
(:hstmt hstmt)
(SQLDescribeParam hstmt parameter-nr
- column-sql-type-ptr
+ column-sql-type-ptr
column-precision-ptr
- column-scale-ptr
+ column-scale-ptr
column-nullable-p-ptr)
(values
(deref-pointer column-sql-type-ptr :short)
- (deref-pointer column-precision-ptr :long)
+ (deref-pointer column-precision-ptr #.$ODBC-ULONG-TYPE)
(deref-pointer column-scale-ptr :short)
(deref-pointer column-nullable-p-ptr :short)))))
(defun %column-attributes (hstmt column-nr descriptor-type)
- (with-foreign-objects ((descriptor-info-ptr '(:array :unsigned-char 256))
- (descriptor-length-ptr :short)
- (numeric-descriptor-ptr :long))
- (with-error-handling
- (:hstmt hstmt)
- (SQLColAttributes hstmt column-nr descriptor-type descriptor-info-ptr 256
- descriptor-length-ptr
- numeric-descriptor-ptr)
- (values
- (convert-from-foreign-string descriptor-info-ptr)
- (deref-pointer numeric-descriptor-ptr :long)))))
+ (let ((descriptor-info-ptr (allocate-foreign-string 256)))
+ (with-foreign-objects ((descriptor-length-ptr :short)
+ (numeric-descriptor-ptr #.$ODBC-LONG-TYPE))
+ (with-error-handling
+ (:hstmt hstmt)
+ (SQLColAttributes hstmt column-nr descriptor-type descriptor-info-ptr
+ 256 descriptor-length-ptr
+ numeric-descriptor-ptr)
+ (let ((desc (convert-from-foreign-string descriptor-info-ptr)))
+ (free-foreign-object descriptor-info-ptr)
+ (values
+ desc
+ (deref-pointer numeric-descriptor-ptr #.$ODBC-LONG-TYPE)))))))
-(defun %prepare-describe-columns (hstmt table-qualifier table-owner
+(defun %prepare-describe-columns (hstmt table-qualifier table-owner
table-name column-name)
(with-cstrings ((table-qualifier-ptr table-qualifier)
- (table-owner-ptr table-owner)
- (table-name-ptr table-name)
- (column-name-ptr column-name))
+ (table-owner-ptr table-owner)
+ (table-name-ptr table-name)
+ (column-name-ptr column-name))
(with-error-handling
- (:hstmt hstmt)
+ (:hstmt hstmt)
(SQLColumns hstmt
- table-qualifier-ptr (length table-qualifier)
- table-owner-ptr (length table-owner)
- table-name-ptr (length table-name)
- column-name-ptr (length column-name)))))
+ table-qualifier-ptr (length table-qualifier)
+ table-owner-ptr (length table-owner)
+ table-name-ptr (length table-name)
+ column-name-ptr (length column-name)))))
-(defun %describe-columns (hdbc table-qualifier table-owner
- table-name column-name)
+(defun %describe-columns (hdbc table-qualifier table-owner
+ table-name column-name)
(with-statement-handle (hstmt hdbc)
- (%prepare-describe-columns hstmt table-qualifier table-owner
+ (%prepare-describe-columns hstmt table-qualifier table-owner
table-name column-name)
(fetch-all-rows hstmt)))
(defun %sql-data-sources (henv &key (direction :first))
- (with-foreign-objects
- ((name-ptr '(:array :unsigned-char #.(1+ $SQL_MAX_DSN_LENGTH)))
- (name-length-ptr :short)
- (description-ptr '(:array :unsigned-char 1024))
- (description-length-ptr :short))
- (let ((res (with-error-handling
- (:henv henv)
- (SQLDataSources henv
- (ecase direction
- (:first $SQL_FETCH_FIRST)
- (:next $SQL_FETCH_NEXT))
- name-ptr
- (1+ $SQL_MAX_DSN_LENGTH)
- name-length-ptr
- description-ptr
- 1024
- description-length-ptr))))
- (unless (= res $SQL_NO_DATA_FOUND)
- (values (convert-from-foreign-string name-ptr)
- (convert-from-foreign-string description-ptr))))))
+ (let ((name-ptr (allocate-foreign-string (1+ $SQL_MAX_DSN_LENGTH)))
+ (description-ptr (allocate-foreign-string 1024)))
+ (with-foreign-objects ((name-length-ptr :short)
+ (description-length-ptr :short))
+ (let ((res (with-error-handling
+ (:henv henv)
+ (SQLDataSources henv
+ (ecase direction
+ (:first $SQL_FETCH_FIRST)
+ (:next $SQL_FETCH_NEXT))
+ name-ptr
+ (1+ $SQL_MAX_DSN_LENGTH)
+ name-length-ptr
+ description-ptr
+ 1024
+ description-length-ptr))))
+ (cond
+ ((= res $SQL_NO_DATA_FOUND)
+ (let ((name (convert-from-foreign-string name-ptr))
+ (desc (convert-from-foreign-string description-ptr)))
+ (free-foreign-object name-ptr)
+ (free-foreign-object description-ptr)
+ (values
+ name
+ desc)))
+ (t
+ (free-foreign-object name-ptr)
+ (free-foreign-object description-ptr)
+ nil))))))
+
+
(defun sql-to-c-type (sql-type)
(ecase sql-type
- ((#.$SQL_CHAR #.$SQL_VARCHAR #.$SQL_LONGVARCHAR
- #.$SQL_NUMERIC #.$SQL_DECIMAL #.$SQL_BIGINT -8 -9) $SQL_C_CHAR)
+ ((#.$SQL_CHAR #.$SQL_VARCHAR #.$SQL_LONGVARCHAR
+ #.$SQL_NUMERIC #.$SQL_DECIMAL #.$SQL_BIGINT -8 -9 -10) $SQL_C_CHAR) ;; Added -10 for MSSQL ntext type
(#.$SQL_INTEGER $SQL_C_SLONG)
(#.$SQL_SMALLINT $SQL_C_SSHORT)
- ((#.$SQL_FLOAT #.$SQL_DOUBLE) $SQL_C_DOUBLE)
+ (#.$SQL_DOUBLE $SQL_C_DOUBLE)
+ (#.$SQL_FLOAT $SQL_C_DOUBLE)
(#.$SQL_REAL $SQL_C_FLOAT)
(#.$SQL_DATE $SQL_C_DATE)
(#.$SQL_TIME $SQL_C_TIME)
(#.$SQL_TIMESTAMP $SQL_C_TIMESTAMP)
+ (#.$SQL_TYPE_DATE $SQL_C_TYPE_DATE)
+ (#.$SQL_TYPE_TIME $SQL_C_TYPE_TIME)
+ (#.$SQL_TYPE_TIMESTAMP $SQL_C_TYPE_TIMESTAMP)
((#.$SQL_BINARY #.$SQL_VARBINARY #.$SQL_LONGVARBINARY) $SQL_C_BINARY)
(#.$SQL_TINYINT $SQL_C_STINYINT)
(#.$SQL_BIT $SQL_C_BIT)))
+(def-type byte-pointer-type (* :byte))
+(def-type short-pointer-type (* :short))
+(def-type int-pointer-type (* :int))
+(def-type long-pointer-type (* #.$ODBC-LONG-TYPE))
+(def-type float-pointer-type (* :float))
+(def-type double-pointer-type (* :double))
+(def-type string-pointer-type (* :unsigned-char))
+
(defun get-cast-byte (ptr)
- (declare (type long-ptr-type out-len-ptr))
- (with-cast-pointer (casted ptr '(* :byte))
- (deref-pointer casted :byte)))
+ (locally (declare (type byte-pointer-type ptr))
+ (deref-pointer ptr :byte)))
(defun get-cast-short (ptr)
- (declare (type long-ptr-type out-len-ptr))
- (with-cast-pointer (casted ptr '(* :short))
- (deref-pointer casted :short)))
+ (locally (declare (type short-pointer-type ptr))
+ (deref-pointer ptr :short)))
(defun get-cast-int (ptr)
- (declare (type long-ptr-type out-len-ptr))
- (with-cast-pointer (casted ptr '(* :int))
- (deref-pointer casted :int)))
+ (locally (declare (type int-pointer-type ptr))
+ (deref-pointer ptr :int)))
(defun get-cast-long (ptr)
- (declare (type long-ptr-type out-len-ptr))
- (with-cast-pointer (casted ptr '(* :long))
- (deref-pointer casted :long)))
+ (locally (declare (type long-pointer-type ptr))
+ (deref-pointer ptr #.$ODBC-LONG-TYPE)))
(defun get-cast-single-float (ptr)
- (declare (type long-ptr-type out-len-ptr))
- (with-cast-pointer (casted ptr '(* :float))
- (deref-pointer casted :float)))
+ (locally (declare (type float-pointer-type ptr))
+ (deref-pointer ptr :float)))
(defun get-cast-double-float (ptr)
- (declare (type long-ptr-type out-len-ptr))
- (with-cast-pointer (casted ptr '(* :double))
- (deref-pointer casted :double)))
+ (locally (declare (type double-pointer-type ptr))
+ (deref-pointer ptr :double)))
(defun get-cast-foreign-string (ptr)
- (declare (type long-ptr-type out-len-ptr))
- (with-cast-pointer (casted ptr '(* :unsigned-char))
- (convert-from-foreign-string casted)))
+ (locally (declare (type string-pointer-type ptr))
+ (convert-from-foreign-string ptr)))
(defun get-cast-binary (ptr len format)
"FORMAT is one of :unsigned-byte-vector, :bit-vector (:string, :hex-string)"
- (with-cast-pointer (casted ptr '(* :byte))
+ (with-cast-pointer (casted ptr :byte)
(ecase format
(:unsigned-byte-vector
(let ((vector (make-array len :element-type '(unsigned-byte 8))))
- (dotimes (i len)
- (setf (aref vector i)
- (deref-array casted '(:array :byte) i)))
- vector))
+ (dotimes (i len)
+ (setf (aref vector i)
+ (deref-array casted '(:array :byte) i)))
+ vector))
(:bit-vector
(let ((vector (make-array (ash len 3) :element-type 'bit)))
- (dotimes (i len)
- (let ((byte (deref-array casted '(:array :byte) i)))
- (dotimes (j 8)
- (setf (bit vector (+ (ash i 3) j)) (logand (ash byte (- j 7)) 1)))))
- vector)))))
+ (dotimes (i len)
+ (let ((byte (deref-array casted '(:array :byte) i)))
+ (dotimes (j 8)
+ (setf (bit vector (+ (ash i 3) j))
+ (logand (ash byte (- j 7)) 1)))))
+ vector)))))
-(defun read-data (data-ptr c-type sql-type out-len-ptr convert-to-string-p)
+(defun read-data (data-ptr c-type sql-type out-len-ptr result-type)
(declare (type long-ptr-type out-len-ptr))
- (let ((out-len (deref-pointer out-len-ptr :long)))
- (cond ((= out-len $SQL_NULL_DATA)
- *null*)
- ;; obsolete?
- (convert-to-string-p
- (convert-from-foreign-string data-ptr))
- (t
- (case sql-type
- ;; SQL extended datatypes
- (#.$SQL_TINYINT (get-cast-short data-ptr))
- (#.$SQL_C_STINYINT (get-cast-short data-ptr)) ;; ?
- (#.$SQL_C_SSHORT (get-cast-short data-ptr)) ;; ?
- (#.$SQL_SMALLINT (deref-pointer data-ptr :short)) ; ??
- (#.$SQL_INTEGER (deref-pointer data-ptr :long))
- (#.$SQL_DECIMAL
- (let ((*read-base* 10))
- (read-from-string (get-cast-foreign-string data-ptr))))
- (t
- (case c-type
- (#.$SQL_C_DATE
- (funcall *time-conversion-function* (date-to-universal-time data-ptr)))
- (#.$SQL_C_TIME
- (multiple-value-bind (universal-time frac) (time-to-universal-time data-ptr)
- (funcall *time-conversion-function* universal-time frac)))
- (#.$SQL_C_TIMESTAMP
- (multiple-value-bind (universal-time frac) (timestamp-to-universal-time data-ptr)
- (funcall *time-conversion-function* universal-time frac)))
- (#.$SQL_INTEGER
- (get-cast-int data-ptr))
- (#.$SQL_C_FLOAT
- (get-cast-single-float data-ptr))
- (#.$SQL_C_DOUBLE
- (get-cast-double-float data-ptr))
- (#.$SQL_C_SLONG
- (get-cast-long data-ptr))
- #+lispworks
- (#.$SQL_C_BIT ; encountered only in Access
- (get-cast-byte data-ptr))
- (#.$SQL_C_BINARY
- (get-cast-binary data-ptr out-len *binary-format*))
- ((#.$SQL_C_SSHORT #.$SQL_C_STINYINT) ; LMH short ints
- (get-cast-short data-ptr)) ; LMH
- #+ignore
- (#.$SQL_C_CHAR
- (code-char (get-cast-short data-ptr)))
+ (let* ((out-len (deref-pointer out-len-ptr #.$ODBC-LONG-TYPE))
+ (value
+ (cond ((= out-len $SQL_NULL_DATA)
+ *null*)
(t
- (convert-from-foreign-string data-ptr)))))))))
+ (case sql-type
+ ;; SQL extended datatypes
+ (#.$SQL_TINYINT (get-cast-byte data-ptr))
+ (#.$SQL_C_STINYINT (get-cast-byte data-ptr)) ;; ?
+ (#.$SQL_C_SSHORT (get-cast-short data-ptr)) ;; ?
+ (#.$SQL_SMALLINT (get-cast-short data-ptr)) ;; ??
+ (#.$SQL_INTEGER (get-cast-int data-ptr))
+ (#.$SQL_BIGINT (read-from-string
+ (get-cast-foreign-string data-ptr)))
+ (#.$SQL_DECIMAL
+ (let ((*read-base* 10))
+ (read-from-string (get-cast-foreign-string data-ptr))))
+ (#.$SQL_BIT (get-cast-byte data-ptr))
+ (t
+ (case c-type
+ ((#.$SQL_C_DATE #.$SQL_C_TYPE_DATE)
+ (funcall *time-conversion-function* (date-to-universal-time data-ptr)))
+ ((#.$SQL_C_TIME #.$SQL_C_TYPE_TIME)
+ (multiple-value-bind (universal-time frac) (time-to-universal-time data-ptr)
+ (funcall *time-conversion-function* universal-time frac)))
+ ((#.$SQL_C_TIMESTAMP #.$SQL_C_TYPE_TIMESTAMP)
+ (multiple-value-bind (universal-time frac) (timestamp-to-universal-time data-ptr)
+ (funcall *time-conversion-function* universal-time frac)))
+ (#.$SQL_INTEGER
+ (get-cast-int data-ptr))
+ (#.$SQL_C_FLOAT
+ (get-cast-single-float data-ptr))
+ (#.$SQL_C_DOUBLE
+ (get-cast-double-float data-ptr))
+ (#.$SQL_C_SLONG
+ (get-cast-long data-ptr))
+ #+lispworks
+ (#.$SQL_C_BIT ; encountered only in Access
+ (get-cast-byte data-ptr))
+ (#.$SQL_C_BINARY
+ (get-cast-binary data-ptr out-len *binary-format*))
+ ((#.$SQL_C_SSHORT #.$SQL_C_STINYINT) ; LMH short ints
+ (get-cast-short data-ptr)) ; LMH
+ #+ignore
+ (#.$SQL_C_CHAR
+ (code-char (get-cast-short data-ptr)))
+ (t
+ (get-cast-foreign-string data-ptr)))))))))
+
+ ;; FIXME: this could be better optimized for types which use READ-FROM-STRING above
+
+ (if (and (or (eq result-type t) (eq result-type :string))
+ value
+ (not (stringp value)))
+ (write-to-string value)
+ value)))
;; which value is appropriate?
-(defparameter +max-precision+
- #+mcl 512
- #-mcl 4001)
+(defparameter +max-precision+ 4001)
(defvar *break-on-unknown-data-type* t)
(long-p (= size +max-precision+))
(data-ptr
(case c-type ;; add more?
- (#.$SQL_C_SLONG (uffi:allocate-foreign-object :long))
+ (#.$SQL_C_SLONG (uffi:allocate-foreign-object #.$ODBC-LONG-TYPE))
+ ((#.$SQL_C_DATE #.$SQL_C_TYPE_DATE) (allocate-foreign-object 'sql-c-date))
+ ((#.$SQL_C_TIME #.$SQL_C_TYPE_TIME) (allocate-foreign-object 'sql-c-time))
+ ((#.$SQL_C_TIMESTAMP #.$SQL_C_TYPE_TIMESTAMP) (allocate-foreign-object 'sql-c-timestamp))
+ (#.$SQL_C_FLOAT (uffi:allocate-foreign-object :float))
(#.$SQL_C_DOUBLE (uffi:allocate-foreign-object :double))
- (#.$SQL_C_DATE (allocate-foreign-object 'sql-c-date))
- (#.$SQL_C_TIME (allocate-foreign-object 'sql-c-time))
- (#.$SQL_C_TIMESTAMP (allocate-foreign-object 'sql-c-timestamp))
- #+lispworks(#.$SQL_C_FLOAT (uffi:allocate-foreign-object :float))
- (#.$SQL_C_BIT (uffi:allocate-foreign-object :boolean))
+ (#.$SQL_C_BIT (uffi:allocate-foreign-object :byte))
(#.$SQL_C_STINYINT (uffi:allocate-foreign-object :byte))
(#.$SQL_C_SSHORT (uffi:allocate-foreign-object :short))
(#.$SQL_C_CHAR (uffi:allocate-foreign-string (1+ size)))
(#.$SQL_C_BINARY (uffi:allocate-foreign-string (1+ (* 2 size))))
- (t
+ (t
;; Maybe should signal a restartable condition for this?
(when *break-on-unknown-data-type*
- (break "SQL type is ~A, precision ~D, size ~D, C type is ~A"
+ (break "SQL type is ~A, precision ~D, size ~D, C type is ~A"
sql-type precision size c-type))
- (uffi:allocate-foreign-object :ptr (1+ size)))))
- (out-len-ptr (uffi:allocate-foreign-object :long)))
+ (uffi:allocate-foreign-object :byte (1+ size)))))
+ (out-len-ptr (uffi:allocate-foreign-object #.$ODBC-LONG-TYPE)))
(values c-type data-ptr out-len-ptr size long-p)))
(defun fetch-all-rows (hstmt &key free-option flatp)
(let ((column-count (result-columns-count hstmt)))
(unless (zerop column-count)
- (let ((names (make-array column-count :element-type 'string))
+ (let ((names (make-array column-count))
(sql-types (make-array column-count :element-type 'fixnum))
(c-types (make-array column-count :element-type 'fixnum))
(precisions (make-array column-count :element-type 'fixnum))
(setf (svref names col-nr) name
(aref sql-types col-nr) sql-type
(aref c-types col-nr) (sql-to-c-type sql-type)
- (aref precisions col-nr) (if (zerop precision) nil precision)
+ (aref precisions col-nr) (if (zerop precision) 0 precision)
(aref scales col-nr) scale
(aref nullables-p col-nr) nullable-p
(aref data-ptrs col-nr) data-ptr
(aref out-len-ptrs col-nr) out-len-ptr))))
;; the main loop
(prog1
- (cond (flatp
+ (cond (flatp
(when (> column-count 1)
- (error "If more than one column is to be fetched, flatp has to be nil."))
+ (error 'clsql:sql-database-error
+ :message "If more than one column is to be fetched, flatp has to be nil."))
(loop until (= (%sql-fetch hstmt) $SQL_NO_DATA_FOUND)
collect
- (read-data (aref data-ptrs 0)
+ (read-data (aref data-ptrs 0)
(aref c-types 0)
(aref sql-types 0)
(aref out-len-ptrs 0)
- nil)))
+ t)))
(t
(loop until (= (%sql-fetch hstmt) $SQL_NO_DATA_FOUND)
collect
(loop for col-nr from 0 to (1- column-count)
collect
- (read-data (aref data-ptrs col-nr)
+ (read-data (aref data-ptrs col-nr)
(aref c-types col-nr)
(aref sql-types col-nr)
(aref out-len-ptrs col-nr)
- nil)))))))
+ t)))))))
names)
;; dispose of memory etc
(when free-option (%free-statement hstmt free-option))
;; depending on option, we return a long int or a string; string not implemented
(defun get-connection-option (hdbc option)
- (with-foreign-objects ((param-ptr :long #+ignore #.(1+ $SQL_MAX_OPTION_STRING_LENGTH)))
+ (with-foreign-object (param-ptr #.$ODBC-LONG-TYPE)
(with-error-handling (:hdbc hdbc)
(SQLGetConnectOption hdbc option param-ptr)
- (deref-pointer param-ptr :long))))
+ (deref-pointer param-ptr #.$ODBC-LONG-TYPE))))
(defun set-connection-option (hdbc option param)
(with-error-handling (:hdbc hdbc)
(set-connection-option hdbc $SQL_AUTOCOMMIT $SQL_AUTOCOMMIT_ON))
(defun %sql-set-pos (hstmt row option lock)
- (with-error-handling
+ (with-error-handling
(:hstmt hstmt)
(SQLSetPos hstmt row option lock)))
(defun %sql-extended-fetch (hstmt fetch-type row)
- (with-foreign-objects ((row-count-ptr :unsigned-long)
- (row-status-ptr :short))
+ (with-foreign-objects ((row-count-ptr #.$ODBC-ULONG-TYPE)
+ (row-status-ptr :short))
(with-error-handling (:hstmt hstmt)
(SQLExtendedFetch hstmt fetch-type row row-count-ptr
- row-status-ptr)
- (values (deref-pointer row-count-ptr :unsigned-long)
+ row-status-ptr)
+ (values (deref-pointer row-count-ptr #.$ODBC-ULONG-TYPE)
(deref-pointer row-status-ptr :short)))))
; column-nr is zero-based
(defconstant $sql-data-truncated (intern "01004" :keyword))
-(defun read-data-in-chunks (hstmt column-nr data-ptr c-type sql-type
- out-len-ptr convert-to-string-p)
- (declare (ignore convert-to-string-p) ; prelimianary
- (type long-ptr-type out-len-ptr))
- (let* ((res (%sql-get-data hstmt column-nr c-type data-ptr
+(defun read-data-in-chunks (hstmt column-nr data-ptr c-type sql-type
+ out-len-ptr result-type)
+ (declare (type long-ptr-type out-len-ptr)
+ (ignore result-type))
+ (let* ((res (%sql-get-data hstmt column-nr c-type data-ptr
+max-precision+ out-len-ptr))
- (out-len (deref-pointer out-len-ptr :long))
- (offset 0))
- (case out-len
- (#.$SQL_NULL_DATA
- (return-from read-data-in-chunks *null*))
- (#.$SQL_NO_TOTAL ;; don't know how long it is going to be
- (let ((str (make-array 0 :element-type 'character :adjustable t)))
- (loop do (if (= c-type #.$SQL_CHAR)
- (let ((data-length (foreign-string-length data-ptr)))
- (adjust-array str (+ offset data-length)
- :initial-element #\?)
- (setf offset (%cstring-into-vector
- data-ptr str
- offset
- data-length)))
- (error "wrong type. preliminary."))
- while (and (= res $SQL_SUCCESS_WITH_INFO)
- (equal (sql-state (%null-ptr) (%null-ptr) hstmt)
- "01004"))
- do (setf res (%sql-get-data hstmt column-nr c-type data-ptr
- +max-precision+ out-len-ptr)))
- (setf str (coerce str 'string))
- (if (= sql-type $SQL_DECIMAL)
- (let ((*read-base* 10))
- (read-from-string str))
- str)))
- (otherwise
- (let ((str (make-string out-len)))
- (loop do (if (= c-type #.$SQL_CHAR)
- (setf offset (%cstring-into-vector ;string
- data-ptr str
- offset
- (min out-len (1- +max-precision+))))
- (error "wrong type. preliminary."))
- while
- (and (= res $SQL_SUCCESS_WITH_INFO)
- #+ingore(eq (sql-state (%null-ptr) (%null-ptr) hstmt)
- $sql-data-truncated)
- (equal (sql-state (%null-ptr) (%null-ptr) hstmt)
- "01004"))
- do (setf res (%sql-get-data hstmt column-nr c-type data-ptr
- +max-precision+ out-len-ptr)
- out-len (deref-pointer out-len-ptr :long)))
- (if (= sql-type $SQL_DECIMAL)
- (let ((*read-base* 10))
- (read-from-string str))
- str))))))
+ (out-len (deref-pointer out-len-ptr #.$ODBC-LONG-TYPE))
+ (offset 0)
+ (result (case out-len
+ (#.$SQL_NULL_DATA
+ (return-from read-data-in-chunks *null*))
+ (#.$SQL_NO_TOTAL ;; don't know how long it is going to be
+ (let ((str (make-array 0 :element-type 'character :adjustable t)))
+ (loop do (if (= c-type #.$SQL_CHAR)
+ (let ((data-length (foreign-string-length data-ptr)))
+ (adjust-array str (+ offset data-length)
+ :initial-element #\?)
+ (setf offset (%cstring-into-vector
+ data-ptr str
+ offset
+ data-length)))
+ (error 'clsql:sql-database-error :message "wrong type. preliminary."))
+ while (and (= res $SQL_SUCCESS_WITH_INFO)
+ (equal (sql-state +null-handle-ptr+ +null-handle-ptr+ hstmt)
+ "01004"))
+ do (setf res (%sql-get-data hstmt column-nr c-type data-ptr
+ +max-precision+ out-len-ptr)))
+ (setf str (coerce str 'string))
+ (if (= sql-type $SQL_DECIMAL)
+ (let ((*read-base* 10))
+ (read-from-string str))
+ str)))
+ (otherwise
+ (let ((str (make-string out-len)))
+ (loop do (if (= c-type #.$SQL_CHAR)
+ (setf offset (%cstring-into-vector ;string
+ data-ptr str
+ offset
+ (min out-len (1- +max-precision+))))
+ (error 'clsql:sql-database-error :message "wrong type. preliminary."))
+ while
+ (and (= res $SQL_SUCCESS_WITH_INFO)
+ #+ingore(eq (sql-state +null-handle-ptr+ +null-handle-ptr+ hstmt)
+ $sql-data-truncated)
+ (equal (sql-state +null-handle-ptr+ +null-handle-ptr+ hstmt)
+ "01004"))
+ do (setf res (%sql-get-data hstmt column-nr c-type data-ptr
+ +max-precision+ out-len-ptr)
+ out-len (deref-pointer out-len-ptr #.$ODBC-LONG-TYPE)))
+ (if (= sql-type $SQL_DECIMAL)
+ (let ((*read-base* 10))
+ (read-from-string str))
+ str))))))
+ (setf (deref-pointer out-len-ptr #.$ODBC-LONG-TYPE) #.$SQL_NO_TOTAL) ;; reset the out length for the next row
+ result))
+
+(def-type c-timestamp-ptr-type (* (:struct sql-c-timestamp)))
+(def-type c-time-ptr-type (* (:struct sql-c-time)))
+(def-type c-date-ptr-type (* (:struct sql-c-date)))
(defun timestamp-to-universal-time (ptr)
+ (declare (type c-timestamp-ptr-type ptr))
(values
- (encode-universal-time
+ (encode-universal-time
(get-slot-value ptr 'sql-c-timestamp 'second)
(get-slot-value ptr 'sql-c-timestamp 'minute)
(get-slot-value ptr 'sql-c-timestamp 'hour)
(defun universal-time-to-timestamp (time &optional (fraction 0))
(multiple-value-bind (sec min hour day month year)
(decode-universal-time time)
- (with-foreign-object (ptr 'sql-c-timestamp)
+ (let ((ptr (allocate-foreign-object 'sql-c-timestamp)))
(setf (get-slot-value ptr 'sql-c-timestamp 'second) sec
(get-slot-value ptr 'sql-c-timestamp 'minute) min
(get-slot-value ptr 'sql-c-timestamp 'hour) hour
ptr)))
(defun %put-timestamp (ptr time &optional (fraction 0))
+ (declare (type c-timestamp-ptr-type ptr))
(multiple-value-bind (sec min hour day month year)
(decode-universal-time time)
(setf (get-slot-value ptr 'sql-c-timestamp 'second) sec
ptr))
(defun date-to-universal-time (ptr)
+ (declare (type c-date-ptr-type ptr))
(encode-universal-time
0 0 0
(get-slot-value ptr 'sql-c-timestamp 'day)
(get-slot-value ptr 'sql-c-timestamp 'year)))
(defun time-to-universal-time (ptr)
- (encode-universal-time
+ (declare (type c-time-ptr-type ptr))
+ (encode-universal-time
(get-slot-value ptr 'sql-c-timestamp 'second)
(get-slot-value ptr 'sql-c-timestamp 'minute)
(get-slot-value ptr 'sql-c-timestamp 'hour)
- 0 0 0))
+ 1 1 0))
+
+
+;;; Added by KMR
+
+(defun %set-attr-odbc-version (henv version)
+ (with-error-handling (:henv henv)
+ (SQLSetEnvAttr henv $SQL_ATTR_ODBC_VERSION
+ (make-pointer version :void) 0)))
+
+(defun %list-tables (hstmt)
+ (with-error-handling (:hstmt hstmt)
+ (SQLTables hstmt +null-ptr+ 0 +null-ptr+ 0 +null-ptr+ 0 +null-ptr+ 0)))
+
+(defun %table-statistics (table hstmt &key unique (ensure t))
+ (with-cstrings ((table-cs table))
+ (with-error-handling (:hstmt hstmt)
+ (SQLStatistics
+ hstmt
+ +null-ptr+ 0
+ +null-ptr+ 0
+ table-cs $SQL_NTS
+ (if unique $SQL_INDEX_UNIQUE $SQL_INDEX_ALL)
+ (if ensure $SQL_ENSURE $SQL_QUICK)))))
+
+(defun %list-data-sources (henv)
+ (let ((dsn (allocate-foreign-string (1+ $SQL_MAX_DSN_LENGTH)))
+ (desc (allocate-foreign-string 256))
+ (results nil))
+ (unwind-protect
+ (with-foreign-objects ((dsn-len :short)
+ (desc-len :short))
+ (let ((res (with-error-handling (:henv henv)
+ (SQLDataSources henv $SQL_FETCH_FIRST dsn
+ (1+ $SQL_MAX_DSN_LENGTH)
+ dsn-len desc 256 desc-len))))
+ (when (or (eql res $SQL_SUCCESS)
+ (eql res $SQL_SUCCESS_WITH_INFO))
+ (push (convert-from-foreign-string dsn) results))
+
+ (do ((res (with-error-handling (:henv henv)
+ (SQLDataSources henv $SQL_FETCH_NEXT dsn
+ (1+ $SQL_MAX_DSN_LENGTH)
+ dsn-len desc 256 desc-len))
+ (with-error-handling (:henv henv)
+ (SQLDataSources henv $SQL_FETCH_NEXT dsn
+ (1+ $SQL_MAX_DSN_LENGTH)
+ dsn-len desc 256 desc-len))))
+ ((not (or (eql res $SQL_SUCCESS)
+ (eql res $SQL_SUCCESS_WITH_INFO))))
+ (push (convert-from-foreign-string dsn) results))))
+ (progn
+ (free-foreign-object dsn)
+ (free-foreign-object desc)))
+ (nreverse results)))
projects / clsql.git / blobdiff