r2033: move initialize code for better .system compilation

[clsql.git] / interfaces / mysql / mysql-loader.cl

diff --git a/interfaces/mysql/mysql-loader.cl b/interfaces/mysql/mysql-loader.cl
index df0bd643915574b513f550d30a7fc40e3802475c..7434670da5a235391e45b2e3d2ed5506c7710bfe 100644 (file)
--- a/interfaces/mysql/mysql-loader.cl
+++ b/interfaces/mysql/mysql-loader.cl
@@ -7,7 +7,7 @@
 ;;;; Programmers:   Kevin M. Rosenberg
 ;;;; Date Started:  Feb 2002
 ;;;;
-;;;; $Id: mysql-loader.cl,v 1.1 2002/03/23 14:04:52 kevin Exp $
+;;;; $Id: mysql-loader.cl,v 1.8 2002/05/13 22:05:21 kevin Exp $
 ;;;;
 ;;;; This file, part of CLSQL, is Copyright (c) 2002 by Kevin M. Rosenberg
 ;;;;
@@ -27,11 +27,11 @@
 
 (defvar *clsql-mysql-library-filename* 
     (translate-logical-pathname 
-     #+(or linux unix) "CLSQL:interfaces;mysql;clsql-mysql.so"
-     #+(or mswindows win32) "CLSQL:interfaces;mysql;clsql-mysql.dll"
+     #+(or linux unix) "CL-LIBRARY:clsql;interfaces;mysql;clsql-mysql.so"
+     #+(or mswindows win32) "CL-LIBRARY:clsql;interfaces;mysql;clsql-mysql.dll"
      ))
 
-(defvar *mysql-library-filename* 
+(defvar *mysql-library-filename*
     (cond
      ((probe-file "/opt/mysql/lib/mysql/libmysqlclient.so")
       "/opt/mysql/lib/mysql/libmysqlclient.so")
@@ -46,24 +46,50 @@
       (warn "Can't find MySQL client library to load.")))
   "Location where the MySQL client library is to be found.")
 
+(defvar *mysql-library-candidate-names*
+    '("libmysqlclient" "libmysql"))
+
+(defvar *mysql-library-candidate-directories*
+    '("/opt/mysql/lib/mysql/" "/usr/local/lib/" "/usr/lib/" "/mysql/lib/opt/"))
+
+(defvar *mysql-library-candidate-drive-letters* '("C" "D" "E"))
+
 (defvar *mysql-supporting-libraries* '("c")
   "Used only by CMU. List of library flags needed to be passed to ld to
 load the MySQL client library succesfully.  If this differs at your site,
 set to the right path before compiling or loading the system.")
 
+(defvar *mysql-library-loaded* nil
+  "T if foreign library was able to be loaded successfully")
 
-
-(defmethod database-type-load-foreign ((database-type (eql :mysql)))
-  (uffi:load-foreign-library *mysql-library-filename* 
-                            :module "mysql" 
-                             :supporting-libraries 
-                            *mysql-supporting-libraries*)
-  (uffi:load-foreign-library *clsql-mysql-library-filename* 
-                            :module "clsql-mysql" 
-                             :supporting-libraries 
-                            (append *mysql-supporting-libraries*)))
-
-
-(database-type-load-foreign :mysql)
+(defmethod clsql-sys:database-type-library-loaded ((database-type (eql :mysql)))
+  *mysql-library-loaded*)
+                                     
+(defmethod clsql-sys:database-type-load-foreign ((database-type (eql :mysql)))
+  (let ((mysql-path
+        (uffi:find-foreign-library *mysql-library-candidate-names*
+                                   *mysql-library-candidate-directories*
+                                   :drive-letters
+                                   *mysql-library-candidate-drive-letters*)))
+    ;; zlib required to load mysql on CMUCL Solaris
+    (uffi:load-foreign-library 
+     (uffi:find-foreign-library '("libz" "zlib")
+                               '("/usr/lib/" "/usr/local/" "/lib/")))
+    (when
+       (and
+        (uffi:load-foreign-library mysql-path
+                                   :module "mysql" 
+                                   :supporting-libraries 
+                                   *mysql-supporting-libraries*)
+        (uffi:load-foreign-library *clsql-mysql-library-filename* 
+                                   :module "clsql-mysql" 
+                                   :supporting-libraries 
+                                   (append *mysql-supporting-libraries*)))
+      (setq *mysql-library-loaded* t))))
 
 
+(clsql-sys:database-type-load-foreign :mysql)
+(when (clsql-sys:database-type-library-loaded :mysql)
+  (clsql-sys:initialize-database-type :database-type :mysql)
+  (setq clsql:*default-database-type* :mysql)
+  (pushnew :mysql cl:*features*))