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|
;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
;;;; Name: oracle.lisp
;;;; Purpose: Package definition for CLSQL Oracle interface
;;;;
;;;; This file is part of CLSQL.
;;;;
;;;; CLSQL users are granted the rights to distribute and use this software
;;;; as governed by the terms of the Lisp Lesser GNU Public License
;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
;;;; *************************************************************************
(in-package #:clsql-oracle)
;;
;; OCI integer types
;;
(uffi:def-foreign-type ub2 :unsigned-short)
(uffi:def-foreign-type sb2 :short)
(uffi:def-foreign-type ub4 :unsigned-int)
(uffi:def-foreign-type sb4 :int)
(uffi:def-foreign-type size_t :unsigned-long)
;;
;; Opaque pointer types
;;
(uffi:def-foreign-type void-pointer :pointer-void)
(uffi:def-foreign-type oci-env :pointer-void)
(uffi:def-foreign-type oci-server :pointer-void)
(uffi:def-foreign-type oci-error :pointer-void)
(uffi:def-foreign-type oci-svc-ctx :pointer-void)
(uffi:def-foreign-type oci-stmt :pointer-void)
(uffi:def-pointer-var +null-void-pointer+
(uffi:make-null-pointer :void))
(uffi:def-pointer-var +null-void-pointer-pointer+
(uffi:make-null-pointer :pointer-void))
;;; Check an OCI return code for erroricity and signal a reasonably
;;; informative condition if so.
;;;
;;; ERRHP provides an error handle which can be used to find
;;; subconditions; if it's not provided, subcodes won't be checked.
;;;
;;; NULLS-OK says that a NULL-VALUE-RETURNED subcondition condition is
;;; normal and needn't cause any signal. An error handle is required
;;; to detect this subcondition, so it doesn't make sense to set ERRHP
;;; unless NULLS-OK is set.
(defmacro def-oci-routine ((c-oci-symbol lisp-oci-fn) c-return &rest c-parms)
(let ((ll (mapcar (lambda (x) (declare (ignore x)) (gensym)) c-parms))
(c-oci-fn (intern (concatenate 'string "%" (symbol-name lisp-oci-fn)))))
`(progn
(declaim (inline ,c-oci-fn ,lisp-oci-fn))
(uffi:def-function (,c-oci-symbol ,c-oci-fn)
,c-parms
:returning ,c-return)
(defun ,lisp-oci-fn (,@ll &key database nulls-ok)
(let ((result (,c-oci-fn ,@ll)))
(if (= result #.+oci-success+)
+oci-success+
(handle-oci-result result database nulls-ok)))))))
(defmacro def-raw-oci-routine
((c-oci-symbol lisp-oci-fn) c-return &rest c-parms)
(let ((ll (mapcar (lambda (x) (declare (ignore x)) (gensym)) c-parms)))
`(let ((%lisp-oci-fn (uffi:def-function (,c-oci-symbol ,(intern (concatenate 'string "%" (symbol-name lisp-oci-fn))))
,c-parms
:returning ,c-return)))
(defun ,lisp-oci-fn (,@ll &key database nulls-ok)
(declare (ignore database nulls-ok))
(funcall %lisp-oci-fn ,@ll)))))
(def-oci-routine ("OCIInitialize" oci-initialize)
:int
(mode ub4) ; ub4
(ctxp :pointer-void) ; dvoid *
(malocfp :pointer-void) ; dvoid *(*)
(ralocfp :pointer-void) ; dvoid *(*)
(mfreefp (* :pointer-void))) ; void *(*)
(def-oci-routine ("OCIEnvInit" oci-env-init)
:int
(envpp :pointer-void) ; OCIEnv **
(mode ub4) ; ub4
(xtramem-sz size_t) ; size_t
(usermempp (* :pointer-void))) ; dvoid **
#-oci7
(def-oci-routine ("OCIEnvCreate" oci-env-create)
:int
(envhpp (* :pointer-void))
(mode ub4)
(ctxp :pointer-void)
(malocfp :pointer-void)
(ralocfp :pointer-void)
(mfreefp :pointer-void)
(xtramemsz size_t)
(usrmempp (* :pointer-void)))
(def-oci-routine ("OCIHandleAlloc" oci-handle-alloc)
:int
(parenth :pointer-void) ; const dvoid *
(hndlpp (* :pointer-void)) ; dvoid **
(type ub4) ; ub4
(xtramem_sz size_t) ; size_t
(usrmempp (* :pointer-void))) ; dvoid **
(def-oci-routine ("OCIServerAttach" oci-server-attach)
:int
(srvhp :pointer-void) ; oci-server
(errhp :pointer-void) ; oci-error
(dblink :cstring) ; :in
(dblink-len sb4) ; sb4
(mode ub4)) ; ub4
(def-oci-routine ("OCIHandleFree" oci-handle-free)
:int
(p0 :pointer-void) ;; handle
(p1 ub4)) ;;type
(def-oci-routine ("OCILogon" oci-logon)
:int
(envhp :pointer-void) ; env
(errhp :pointer-void) ; err
(svchpp (* :pointer-void)) ; svc
(username (* :unsigned-char)) ; username
(uname-len ub4) ;
(passwd (* :unsigned-char)) ; passwd
(password-len ub4) ;
(dsn (* :unsigned-char)) ; datasource
(dsn-len ub4)) ;
(def-oci-routine ("OCILogoff" oci-logoff)
:int
(p0 :pointer-void) ; svc
(p1 :pointer-void)) ; err
(declaim (inline oci-error-get))
(uffi:def-function ("OCIErrorGet" oci-error-get)
((handlp :pointer-void)
(recordno ub4)
(sqlstate :cstring)
(errcodep (* sb4))
(bufp (* :unsigned-char))
(bufsize ub4)
(type ub4))
:returning :void)
(def-oci-routine ("OCIStmtPrepare" oci-stmt-prepare)
:int
(stmtp :pointer-void)
(errhp :pointer-void)
(stmt (* :unsigned-char))
(stmt_len ub4)
(language ub4)
(mode ub4))
(def-oci-routine ("OCIStmtExecute" oci-stmt-execute)
:int
(svchp :pointer-void)
(stmtp1 :pointer-void)
(errhp :pointer-void)
(iters ub4)
(rowoff ub4)
(snap_in :pointer-void)
(snap_out :pointer-void)
(mode ub4))
(def-raw-oci-routine ("OCIParamGet" oci-param-get)
:int
(hndlp :pointer-void)
(htype ub4)
(errhp :pointer-void)
(parmdpp (* :pointer-void))
(pos ub4))
(def-oci-routine ("OCIAttrGet" oci-attr-get)
:int
(trgthndlp :pointer-void)
(trghndltyp ub4)
(attributep :pointer-void)
(sizep (* ub4))
(attrtype ub4)
(errhp :pointer-void))
(def-oci-routine ("OCIAttrSet" oci-attr-set)
:int
(trgthndlp :pointer-void)
(trgthndltyp ub4 :in)
(attributep :pointer-void)
(size ub4)
(attrtype ub4)
(errhp oci-error))
(def-oci-routine ("OCIDefineByPos" oci-define-by-pos)
:int
(stmtp :pointer-void)
(defnpp (* :pointer-void))
(errhp :pointer-void)
(position ub4)
(valuep :pointer-void)
(value_sz sb4)
(dty ub2)
(indp (* sb2))
(rlenp (* ub2))
(rcodep (* ub2))
(mode ub4))
(def-oci-routine ("OCIStmtFetch" oci-stmt-fetch)
:int
(stmthp :pointer-void)
(errhp :pointer-void)
(p2 ub4)
(p3 ub2)
(p4 ub4))
(def-oci-routine ("OCITransStart" oci-trans-start)
:int
(svchp :pointer-void)
(errhp :pointer-void)
(p2 :unsigned-short)
(p3 :unsigned-short))
(def-oci-routine ("OCITransCommit" oci-trans-commit)
:int
(svchp :pointer-void)
(errhp :pointer-void)
(p2 :unsigned-short))
(def-oci-routine ("OCITransRollback" oci-trans-rollback)
:int
(svchp :pointer-void)
(errhp :pointer-void)
(p2 :unsigned-short))
(def-oci-routine ("OCIServerVersion" oci-server-version)
:int
(handlp :pointer-void)
(errhp :pointer-void)
(bufp (* :unsigned-char))
(bufsz :int)
(hndltype :short))
;;; Low-level routines that don't do error checking. They are used
;;; for setting up global environment.
(uffi:def-function "OCIInitialize"
((mode ub4) ; ub4
(ctxp :pointer-void) ; dvoid *
(malocfp :pointer-void) ; dvoid *(*)
(ralocfp :pointer-void) ; dvoid *(*)
(mfreefp (* :pointer-void)))
:returning :int)
(uffi:def-function "OCIEnvInit"
((envpp :pointer-void) ; OCIEnv **
(mode ub4) ; ub4
(xtramem-sz size_t) ; size_t
(usermempp (* :pointer-void)))
:returning :int)
(uffi:def-function "OCIHandleAlloc"
((parenth :pointer-void) ; const dvoid *
(hndlpp (* :pointer-void)) ; dvoid **
(type ub4) ; ub4
(xtramem_sz size_t) ; size_t
(usrmempp (* :pointer-void)))
:returning :int)
(defstruct oci-handle
(type :unknown)
(pointer (uffi:allocate-foreign-object :pointer-void)))
(defvar *oci-initialized* nil)
(defvar *oci-env* nil)
(defvar *oci-handle-types*
'(:error ; error report handle (OCIError)
:service-context ; service context handle (OCISvcCtx)
:statement ; statement (application request) handle (OCIStmt)
:describe ; select list description handle (OCIDescribe)
:server ; server context handle (OCIServer)
:session ; user session handle (OCISession)
:transaction ; transaction context handle (OCITrans)
:complex-object ; complex object retrieval handle (OCIComplexObject)
:security)) ; security handle (OCISecurity)
(defun oci-init (&key (mode +oci-default+))
(let ((x (OCIInitialize mode +null-void-pointer+ +null-void-pointer+
+null-void-pointer+ +null-void-pointer-pointer+)))
(if (= x 0)
(let ((env (uffi:allocate-foreign-object :pointer-void)))
(setq *oci-initialized* mode)
(let ((x (OCIEnvInit env +oci-default+ 0 +null-void-pointer+)))
(format t ";; OEI: returned ~d~%" x)
(setq *oci-env* env))))))
(defun oci-check-return (value)
(when (= value +oci-invalid-handle+)
(error 'sql-database-error :message "Invalid Handle")))
(defun oci-get-handle (&key type)
(if (null *oci-initialized*)
(oci-init))
(case type
(:error
(let ((ptr (uffi:allocate-foreign-object :pointer-void)))
(let ((x (OCIHandleAlloc
(uffi:deref-pointer *oci-env* void-pointer)
ptr
+oci-default+
0
+null-void-pointer-pointer+)))
(oci-check-return x)
ptr)))
(:service-context
"OCISvcCtx")
(:statement
"OCIStmt")
(:describe
"OCIDescribe")
(:server
"OCIServer")
(:session
"OCISession")
(:transaction
"OCITrans")
(:complex-object
"OCIComplexObject")
(:security
"OCISecurity")
(t
(error 'sql-database-error
:message
(format nil "'~s' is not a valid OCI handle type" type)))))
(defun oci-environment ()
(let ((envhp (oci-get-handle :type :env)))
(oci-env-init envhp 0 0 +null-void-pointer+)
envhp))
|
