db-mysql/mysql-client-info.lisp

   1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
   2 ;;;; *************************************************************************
   3 ;;;; FILE IDENTIFICATION
   4 ;;;;
   5 ;;;; Name:          mysql-client-info.lisp
   6 ;;;; Purpose:       Check mysql client version
   7 ;;;; Programmer:    Kevin M. Rosenberg
   8 ;;;; Date Started:  April 2004
   9 ;;;;
  10 ;;;; $Id$
  11 ;;;;
  12 ;;;; This file, part of CLSQL, is Copyright (c) 2004 by Kevin M. Rosenberg
  13 ;;;;
  14 ;;;; CLSQL users are granted the rights to distribute and use this software
  15 ;;;; as governed by the terms of the Lisp Lesser GNU Public License
  16 ;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
  17 ;;;; *************************************************************************
  18
  19 (in-package #:mysql)
  20
  21 (declaim (inline mysql-get-client-info))
  22
  23 (defvar *mysql-client-info* nil)
  24
  25 (eval-when (:compile-toplevel :load-toplevel :execute)
  26   (uffi:def-function ("mysql_get_client_info" mysql-get-client-info)
  27       ()
  28     :module "mysql"
  29     :returning :cstring)
  30
  31   (setf *mysql-client-info* (uffi:convert-from-cstring (mysql-get-client-info)))
  32
  33
  34   (when (and (stringp *mysql-client-info*)
  35              (plusp (length *mysql-client-info*)))
  36     (cond
  37       ((eql (schar *mysql-client-info* 0) #\3)
  38        (pushnew :mysql-client-v3 cl:*features*))
  39       ((eql (schar *mysql-client-info* 0) #\4)
  40        (pushnew :mysql-client-v4 cl:*features*)
  41        (when (and (>= (length *mysql-client-info*) 3)
  42                   (string-equal "4.1" *mysql-client-info* :end2 3))
  43          (pushnew :mysql-client-v4.1 cl:*features*)))
  44       ((eql (schar *mysql-client-info* 0) #\5)
  45        (pushnew :mysql-client-v5 cl:*features*)
  46        (when (and (>= (length *mysql-client-info*) 3)
  47                   (string-equal "5.1" *mysql-client-info* :end2 3))
  48          (pushnew :mysql-client-v5.1 cl:*features*)))
  49       (t
  50        (error "Unknown mysql client version '~A'." *mysql-client-info*)))))
  51