+++ /dev/null
-;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10; Package: UFFI -*-
-;;;; *************************************************************************
-;;;; FILE IDENTIFICATION
-;;;;
-;;;; Name: libraries.cl
-;;;; Purpose: UFFI source to load foreign libraries
-;;;; Programmer: Kevin M. Rosenberg
-;;;; Date Started: Feb 2002
-;;;;
-;;;; $Id: libraries.cl,v 1.16 2002/08/23 15:28:52 kevin Exp $
-;;;;
-;;;; This file, part of UFFI, is Copyright (c) 2002 by Kevin M. Rosenberg
-;;;;
-;;;; UFFI 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.
-;;;; *************************************************************************
-
-(declaim (optimize (debug 3) (speed 3) (safety 1) (compilation-speed 0)))
-(in-package :uffi)
-
-(defvar *loaded-libraries* nil
- "List of foreign libraries loaded. Used to prevent reloading a library")
-
-(defun default-foreign-library-type ()
- "Returns string naming default library type for platform"
- #+(or win32 mswindows) "dll"
- #-(or win32 mswindows) "so")
-
-(defun find-foreign-library (names directories &key types drive-letters)
- "Looks for a foreign library. directories can be a single
-string or a list of strings of candidate directories. Use default
-library type if type is not specified."
- (unless types
- (setq types (default-foreign-library-type)))
- (unless (listp types)
- (setq types (list types)))
- (unless (listp names)
- (setq names (list names)))
- (unless (listp directories)
- (setq directories (list directories)))
- #+(or win32 mswindows)
- (unless (listp drive-letters)
- (setq drive-letters (list drive-letters)))
- #-(or win32 mswindows)
- (setq drive-letters '(nil))
- (dolist (drive-letter drive-letters)
- (dolist (name names)
- (dolist (dir directories)
- (dolist (type types)
- (let ((path (make-pathname
- #+lispworks :host
- #+lispworks (when drive-letter drive-letter)
- #-lispworks :device
- #-lispworks (when drive-letter drive-letter)
- :name name
- :type type
- :directory
- (etypecase dir
- (pathname
- (pathname-directory dir))
- (list
- dir)
- (string
- (pathname-directory
- (parse-namestring dir)))))))
- (when (probe-file path)
- (return-from find-foreign-library path)))))))
- nil)
-
-
-(defun load-foreign-library (filename &key module supporting-libraries
- force-load)
- #+allegro (declare (ignore module supporting-libraries))
- #+lispworks (declare (ignore supporting-libraries))
- #+cmu (declare (ignore module))
-
- (when (and filename (probe-file filename))
- (if (pathnamep filename) ;; ensure filename is a string to check if
- (setq filename (namestring filename))) ; already loaded
-
- (if (and (not force-load)
- (find filename *loaded-libraries* :test #'string-equal))
- t ;; return T, but don't reload library
- (progn
- #+cmu
- (let ((type (pathname-type (parse-namestring filename))))
- (if (equal type "so")
- (sys::load-object-file filename)
- (alien:load-foreign filename
- :libraries
- (convert-supporting-libraries-to-string
- supporting-libraries))))
-
- #+lispworks (fli:register-module module
- :real-name filename)
- #+allegro (load filename)
-
- (push filename *loaded-libraries*)
- t)))
- )
-
-(defun convert-supporting-libraries-to-string (libs)
- (let (lib-load-list)
- (dolist (lib libs)
- (push (format nil "-l~A" lib) lib-load-list))
- (nreverse lib-load-list)))