199 lines
		
	
	
		
			8.9 KiB
		
	
	
	
		
			Scheme
		
	
	
	
			
		
		
	
	
			199 lines
		
	
	
		
			8.9 KiB
		
	
	
	
		
			Scheme
		
	
	
	
(cond-expand
 | 
						|
  ((or chicken-5 chicken-6)
 | 
						|
   (define-syntax pffi-init
 | 
						|
     (er-macro-transformer
 | 
						|
       (lambda (expr rename compare)
 | 
						|
         '(import (chicken foreign)
 | 
						|
                  (chicken memory))))))
 | 
						|
  (else
 | 
						|
    (define pffi-init
 | 
						|
      (lambda () (+ 1 1)))))
 | 
						|
 | 
						|
(define pffi-types
 | 
						|
  '(int8
 | 
						|
     uint8
 | 
						|
     int16
 | 
						|
     uint16
 | 
						|
     int32
 | 
						|
     uint32
 | 
						|
     int64
 | 
						|
     uint64
 | 
						|
     char
 | 
						|
     unsigned-char
 | 
						|
     short
 | 
						|
     unsigned-short
 | 
						|
     int
 | 
						|
     unsigned-int
 | 
						|
     long
 | 
						|
     unsigned-long
 | 
						|
     float
 | 
						|
     double
 | 
						|
     string
 | 
						|
     pointer
 | 
						|
     void))
 | 
						|
 | 
						|
(define string-split
 | 
						|
  (lambda (str mark)
 | 
						|
    (let* ((str-l (string->list str))
 | 
						|
           (res (list))
 | 
						|
           (last-index 0)
 | 
						|
           (index 0)
 | 
						|
           (splitter (lambda (c)
 | 
						|
                       (cond ((char=? c mark)
 | 
						|
                              (begin
 | 
						|
                                (set! res (append res (list (string-copy str last-index index))))
 | 
						|
                                (set! last-index (+ index 1))))
 | 
						|
                             ((equal? (length str-l) (+ index 1))
 | 
						|
                              (set! res (append res (list (string-copy str last-index (+ index 1)))))))
 | 
						|
                       (set! index (+ index 1)))))
 | 
						|
      (for-each splitter str-l)
 | 
						|
      res)))
 | 
						|
 | 
						|
(cond-expand
 | 
						|
  (gambit
 | 
						|
    (define-macro
 | 
						|
      (pffi-shared-object-auto-load headers object-name options)
 | 
						|
      `(pffi-shared-object-load ,(car headers))))
 | 
						|
  (cyclone
 | 
						|
    (define-syntax pffi-shared-object-auto-load
 | 
						|
      (syntax-rules ()
 | 
						|
        ((pffi-shared-object-auto-load headers object-name)
 | 
						|
         (pffi-shared-object-auto-load headers object-name (list)))
 | 
						|
        ((pffi-shared-object-auto-load headers object-name options)
 | 
						|
         (pffi-shared-object-load headers)))))
 | 
						|
  (else
 | 
						|
    (define-syntax pffi-shared-object-auto-load
 | 
						|
      (syntax-rules ()
 | 
						|
        ((pffi-shared-object-auto-load headers object-name)
 | 
						|
         (pffi-shared-object-auto-load headers object-name (list)))
 | 
						|
        ((pffi-shared-object-auto-load headers object-name options)
 | 
						|
         (cond-expand
 | 
						|
           (chicken (pffi-shared-object-load headers))
 | 
						|
           (else
 | 
						|
             (let* ((additional-paths (if (assoc 'additional-paths options)
 | 
						|
                                        (cadr (assoc 'additional-paths options))
 | 
						|
                                        (list)))
 | 
						|
                    (additional-versions (if (assoc 'additional-versions options)
 | 
						|
                                           (cadr (assoc 'additional-versions options))
 | 
						|
                                           (list)))
 | 
						|
                    (slash (cond-expand (windows (string #\\)) (else "/")))
 | 
						|
                    (auto-load-paths
 | 
						|
                      (cond-expand
 | 
						|
                        (windows
 | 
						|
                          (append
 | 
						|
                            (if (get-environment-variable "SYSTEM")
 | 
						|
                              (list (get-environment-variable "SYSTEM"))
 | 
						|
                              (list))
 | 
						|
                            (if (get-environment-variable "WINDIR")
 | 
						|
                              (list (get-environment-variable "WINDIR"))
 | 
						|
                              (list))
 | 
						|
                            (if (get-environment-variable "WINEDLLDIR0")
 | 
						|
                              (list (get-environment-variable "WINEDLLDIR0"))
 | 
						|
                              (list))
 | 
						|
                            (if (get-environment-variable "SystemRoot")
 | 
						|
                              (list (string-append
 | 
						|
                                      (get-environment-variable "SystemRoot")
 | 
						|
                                      slash
 | 
						|
                                      "system32"))
 | 
						|
                              (list))
 | 
						|
                            (list ".")
 | 
						|
                            (if (get-environment-variable "PATH")
 | 
						|
                              (string-split (get-environment-variable "PATH") #\;)
 | 
						|
                              (list))
 | 
						|
                            (if (get-environment-variable "PWD")
 | 
						|
                              (list (get-environment-variable "PWD"))
 | 
						|
                              (list))))
 | 
						|
                        (else
 | 
						|
                          (append
 | 
						|
                            ; Guix
 | 
						|
                            (list (if (get-environment-variable "GUIX_ENVIRONMENT")
 | 
						|
                                    (string-append (get-environment-variable "GUIX_ENVIRONMENT") slash "lib")
 | 
						|
                                    "")
 | 
						|
                                  "/run/current-system/profile/lib")
 | 
						|
                            ; Debian
 | 
						|
                            (if (get-environment-variable "LD_LIBRARY_PATH")
 | 
						|
                              (string-split (get-environment-variable "LD_LIBRARY_PATH") #\:)
 | 
						|
                              (list))
 | 
						|
                            (list
 | 
						|
                              ;;; x86-64
 | 
						|
                              ; Debian
 | 
						|
                              "/lib/x86_64-linux-gnu"
 | 
						|
                              "/usr/lib/x86_64-linux-gnu"
 | 
						|
                              "/usr/local/lib"
 | 
						|
                              ; Fedora/Alpine
 | 
						|
                              "/usr/lib"
 | 
						|
                              "/usr/lib64"
 | 
						|
                              ;;; aarch64
 | 
						|
                              ; Debian
 | 
						|
                              "/lib/aarch64-linux-gnu"
 | 
						|
                              "/usr/lib/aarch64-linux-gnu"
 | 
						|
                              "/usr/local/lib"
 | 
						|
                              ; Fedora/Alpine
 | 
						|
                              "/usr/lib"
 | 
						|
                              "/usr/lib64"
 | 
						|
                              ; NetBSD
 | 
						|
                              "/usr/pkg/lib")))))
 | 
						|
                    (auto-load-versions (list ""))
 | 
						|
                    (paths (append auto-load-paths additional-paths))
 | 
						|
                    (versions (append additional-versions auto-load-versions))
 | 
						|
                    (platform-lib-prefix
 | 
						|
                      (cond-expand
 | 
						|
                        ;(racket (if (equal? (system-type 'os) 'windows) "" "lib"))
 | 
						|
                        (windows "")
 | 
						|
                        (else "lib")))
 | 
						|
                    (platform-file-extension
 | 
						|
                      (cond-expand
 | 
						|
                        ;(racket (if (equal? (system-type 'os) 'windows) ".dll" ".so"))
 | 
						|
                        (windows ".dll")
 | 
						|
                        (else ".so")))
 | 
						|
                    (shared-object #f)
 | 
						|
                    (searched-paths (list)))
 | 
						|
               (for-each
 | 
						|
                 (lambda (path)
 | 
						|
                   (for-each
 | 
						|
                     (lambda (version)
 | 
						|
                       (let ((library-path
 | 
						|
                               (string-append path
 | 
						|
                                              slash
 | 
						|
                                              platform-lib-prefix
 | 
						|
                                              object-name
 | 
						|
                                              (cond-expand
 | 
						|
                                                (windows "")
 | 
						|
                                                (else platform-file-extension))
 | 
						|
                                              (if (string=? version "")
 | 
						|
                                                ""
 | 
						|
                                                (string-append
 | 
						|
                                                  (cond-expand (windows "-")
 | 
						|
                                                               (else "."))
 | 
						|
                                                  version))
 | 
						|
                                              (cond-expand
 | 
						|
                                                (windows platform-file-extension)
 | 
						|
                                                (else ""))))
 | 
						|
                               (library-path-without-suffixes (string-append path
 | 
						|
                                                                             slash
 | 
						|
                                                                             platform-lib-prefix
 | 
						|
                                                                             object-name)))
 | 
						|
                         (set! searched-paths (append searched-paths (list library-path)))
 | 
						|
                         (when (and (not shared-object)
 | 
						|
                                    (file-exists? library-path))
 | 
						|
                           (set! shared-object
 | 
						|
                             (cond-expand (racket library-path-without-suffixes)
 | 
						|
                                          (else library-path))))))
 | 
						|
                     versions))
 | 
						|
                 paths)
 | 
						|
               (if (not shared-object)
 | 
						|
                 (begin
 | 
						|
                   (display "Could not load shared object: ")
 | 
						|
                   (write (list (cons 'object object-name)
 | 
						|
                                (cons 'paths paths)
 | 
						|
                                (cons 'platform-file-extension platform-file-extension)
 | 
						|
                                (cons 'versions versions)))
 | 
						|
                   (newline)
 | 
						|
                   (display "Searched paths: ")
 | 
						|
                   (write searched-paths)
 | 
						|
                   (newline)
 | 
						|
                   (exit 1))
 | 
						|
                 (pffi-shared-object-load headers
 | 
						|
                                          shared-object
 | 
						|
                                          `((additional-versions ,versions))))))))))))
 |