db-mysql/mysql-loader.lisp

   1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
   2 ;;;; *************************************************************************
   3 ;;;; FILE IDENTIFICATION
   4 ;;;;
   5 ;;;; Name:          mysql-loader.sql
   6 ;;;; Purpose:       MySQL library loader using UFFI
   7 ;;;; Programmers:   Kevin M. Rosenberg
   8 ;;;; Date Started:  Feb 2002
   9 ;;;;
  10 ;;;; $Id$
  11 ;;;;
  12 ;;;; This file, part of CLSQL, is Copyright (c) 2002 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 (defparameter *clsql-mysql-library-path*
  22   (uffi:find-foreign-library
  23    "mysql"
  24    `(,(make-pathname :directory (pathname-directory *load-truename*))
  25      "/usr/lib/clsql/"
  26      "/sw/lib/clsql/"
  27      "/home/kevin/debian/src/clsql/db-mysql/")
  28    :drive-letters '("C")))
  29
  30 (defparameter *libz-library-path*
  31   (uffi:find-foreign-library
  32    '("libz" "zlibwapi" "zlib")
  33    `(,(make-pathname :directory (pathname-directory *load-truename*))
  34      #+64bit "/usr/lib64/"
  35       "/usr/lib/"
  36       "/sw/lib/"
  37       "/usr/local/lib/"
  38        "/home/kevin/debian/src/clsql/db-mysql/"
  39      "/bin/"
  40        "/mysql/lib/dll32/"
  41        "/mysql/lib/opt/")
  42    :drive-letters '("C")))
  43
  44 (defvar *mysql-library-candidate-names*
  45     '("libmysqlclient" "libmysql"))
  46
  47 (defparameter *mysql-library-candidate-directories*
  48     `(,(pathname-directory *load-pathname*)
  49       "/opt/mysql/lib/mysql/" "/usr/local/lib/"
  50       #+64bit "/usr/lib64/"
  51       "/usr/lib/" "/usr/local/lib/mysql/" "/usr/lib/mysql/" "/mysql/lib/opt/" "/sw/lib/mysql/"))
  52
  53 (defvar *mysql-library-candidate-drive-letters* '("C" "D" "E"))
  54
  55 (defvar *mysql-supporting-libraries* '("c")
  56   "Used only by CMU. List of library flags needed to be passed to ld to
  57 load the MySQL client library succesfully.  If this differs at your site,
  58 set to the right path before compiling or loading the system.")
  59
  60 (defvar *mysql-library-loaded* nil
  61   "T if foreign library was able to be loaded successfully")
  62
  63 (defmethod clsql-sys:database-type-library-loaded ((database-type (eql :mysql)))
  64   *mysql-library-loaded*)
  65
  66 (defmethod clsql-sys:database-type-load-foreign ((database-type (eql :mysql)))
  67   (let ((mysql-path
  68          (uffi:find-foreign-library *mysql-library-candidate-names*
  69                                     *mysql-library-candidate-directories*
  70                                     :drive-letters
  71                                     *mysql-library-candidate-drive-letters*)))
  72     (unless (probe-file mysql-path)
  73       (error "Can't find mysql client library to load"))
  74     (uffi:load-foreign-library *libz-library-path*)
  75     (uffi:load-foreign-library mysql-path
  76                                :module "mysql"
  77                                :supporting-libraries
  78                                *mysql-supporting-libraries*)
  79     (uffi:load-foreign-library *clsql-mysql-library-path*
  80                                :module "clsql-mysql"
  81                                :supporting-libraries
  82                                (append *mysql-supporting-libraries*)))
  83   (setq *mysql-library-loaded* t))
  84
  85
  86 (clsql-sys:database-type-load-foreign :mysql)
  87