r8804: add automatic mysql client detection

[clsql.git] / db-mysql / mysql-client-info.lisp

diff --git a/db-mysql/mysql-client-info.lisp b/db-mysql/mysql-client-info.lisp
new file mode 100644 (file)
index 0000000..df454bd
--- /dev/null
+++ b/db-mysql/mysql-client-info.lisp
@@ -0,0 +1,42 @@
+;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
+;;;; *************************************************************************
+;;;; FILE IDENTIFICATION
+;;;;
+;;;; Name:          mysql-client-info.lisp
+;;;; Purpose:       Check mysql client version
+;;;; Programmer:    Kevin M. Rosenberg
+;;;; Date Started:  April 2004
+;;;;
+;;;; $Id: mysql-api.lisp 8801 2004-03-31 23:48:44Z kevin $
+;;;;
+;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg
+;;;; and Copyright (c) 1999-2001 by Pierre R. Mai
+;;;;
+;;;; 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 #:mysql)
+
+(declaim (inline mysql-get-client-info))
+
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (uffi:def-function "mysql_get_client_info"
+      ()
+    :module "mysql"
+    :returning :cstring)
+
+  (let ((version (uffi:convert-from-cstring (mysql-get-client-info))))
+    (cond
+      ((eql (schar version 0) #\3)
+       (pushnew :mysql-client-v3 cl:*features*))
+      ((eql (schar version 0) #\4)
+       (pushnew :mysql-client-v4 cl:*features*))
+      (t
+       (error "Unknown mysql client version '~A'." version)))))
+
+;;#-(or :mysql-client-v3 :mysql-client-v4)
+;;(eval-when (:compile-toplevel :load-toplevel :execute)
+;;  (pushnew :mysql-client-v3 cl:*features*))
+