112ac1d3 |
1 | ;; Common Lisp bindings for GTK+ v2.x |
2 | ;; Copyright 1999-2005 Espen S. Johnsen <espen@users.sf.net> |
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3 | ;; |
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4 | ;; Permission is hereby granted, free of charge, to any person obtaining |
5 | ;; a copy of this software and associated documentation files (the |
6 | ;; "Software"), to deal in the Software without restriction, including |
7 | ;; without limitation the rights to use, copy, modify, merge, publish, |
8 | ;; distribute, sublicense, and/or sell copies of the Software, and to |
9 | ;; permit persons to whom the Software is furnished to do so, subject to |
10 | ;; the following conditions: |
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11 | ;; |
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12 | ;; The above copyright notice and this permission notice shall be |
13 | ;; included in all copies or substantial portions of the Software. |
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14 | ;; |
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15 | ;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
16 | ;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
17 | ;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
18 | ;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
19 | ;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
20 | ;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
21 | ;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
22 | |
3005806e |
23 | ;; $Id: ffi.lisp,v 1.23 2006-02-06 18:12:19 espen Exp $ |
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24 | |
25 | (in-package "GLIB") |
26 | |
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27 | |
28 | ;;;; Foreign function call interface |
29 | |
30 | (defvar *package-prefix* nil) |
31 | |
32 | (defun set-package-prefix (prefix &optional (package *package*)) |
33 | (let ((package (find-package package))) |
34 | (delete-if #'(lambda (assoc) (eq (car assoc) package)) *package-prefix*) |
35 | (push (cons package prefix) *package-prefix*)) |
36 | prefix) |
37 | |
38 | (defun package-prefix (&optional (package *package*)) |
39 | (let ((package (find-package package))) |
40 | (or |
41 | (cdr (assoc package *package-prefix*)) |
42 | (substitute #\_ #\- (string-downcase (package-name package)))))) |
43 | |
44 | (defun find-prefix-package (prefix) |
45 | (or |
46 | (car (rassoc (string-downcase prefix) *package-prefix* :test #'string=)) |
47 | (find-package (string-upcase prefix)))) |
48 | |
49 | (defmacro use-prefix (prefix &optional (package *package*)) |
50 | `(eval-when (:compile-toplevel :load-toplevel :execute) |
51 | (set-package-prefix ,prefix ,package))) |
52 | |
53 | |
54 | (defun default-alien-fname (lisp-name) |
1ff84b06 |
55 | (let* ((name (substitute #\_ #\- (string-downcase lisp-name))) |
56 | (stripped-name |
57 | (cond |
58 | ((and |
59 | (char= (char name 0) #\%) |
60 | (string= "_p" name :start2 (- (length name) 2))) |
61 | (subseq name 1 (- (length name) 2))) |
62 | ((char= (char name 0) #\%) |
63 | (subseq name 1)) |
64 | ((string= "_p" name :start2 (- (length name) 2)) |
65 | (subseq name 0 (- (length name) 2))) |
66 | (name))) |
67 | (prefix (package-prefix *package*))) |
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68 | (if (or (not prefix) (string= prefix "")) |
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69 | stripped-name |
70 | (format nil "~A_~A" prefix stripped-name)))) |
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71 | |
72 | (defun default-alien-type-name (type-name) |
73 | (let ((prefix (package-prefix *package*))) |
74 | (apply |
75 | #'concatenate |
76 | 'string |
77 | (mapcar |
78 | #'string-capitalize |
79 | (cons prefix (split-string (symbol-name type-name) #\-)))))) |
80 | |
81 | (defun default-type-name (alien-name) |
82 | (let ((parts |
83 | (mapcar |
84 | #'string-upcase |
85 | (split-string-if alien-name #'upper-case-p)))) |
86 | (intern |
87 | (concatenate-strings |
88 | (rest parts) #\-) (find-prefix-package (first parts))))) |
89 | |
90 | |
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91 | (defmacro defbinding (name lambda-list return-type &rest docs/args) |
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92 | (multiple-value-bind (lisp-name c-name) |
93 | (if (atom name) |
94 | (values name (default-alien-fname name)) |
95 | (values-list name)) |
96 | |
97 | (let ((supplied-lambda-list lambda-list) |
98 | (docs nil) |
99 | (args nil)) |
100 | (dolist (doc/arg docs/args) |
101 | (if (stringp doc/arg) |
102 | (push doc/arg docs) |
103 | (progn |
104 | (destructuring-bind (expr type &optional (style :in)) doc/arg |
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105 | (unless (member style '(:in :out :in-out :return)) |
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106 | (error "Bogus argument style ~S in ~S." style doc/arg)) |
107 | (when (and |
108 | (not supplied-lambda-list) |
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109 | (namep expr) (member style '(:in :in-out :return))) |
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110 | (push expr lambda-list)) |
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111 | (push (list (cond |
112 | ((and (namep expr) (eq style :out)) expr) |
113 | ((namep expr) (make-symbol (string expr))) |
114 | ((gensym))) |
115 | expr (mklist type) style) args))))) |
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116 | |
117 | (%defbinding |
118 | c-name lisp-name (or supplied-lambda-list (nreverse lambda-list)) |
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119 | return-type (reverse docs) (reverse args))))) |
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120 | |
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121 | #+(or cmu sbcl) |
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122 | (defun %defbinding (foreign-name lisp-name lambda-list return-type docs args) |
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123 | (collect ((alien-types) (alien-bindings) (alien-parameters) |
124 | (return-values) (cleanup-forms)) |
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125 | (dolist (arg args) |
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126 | (destructuring-bind (var expr type style) arg |
127 | (let ((declaration (alien-type type)) |
128 | (cleanup (cleanup-form var type))) |
129 | |
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130 | (cond |
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131 | ((member style '(:out :in-out)) |
132 | (alien-types `(* ,declaration)) |
133 | (alien-parameters `(addr ,var)) |
134 | (alien-bindings |
135 | `(,var ,declaration |
fefc2058 |
136 | ,@(cond |
137 | ((eq style :in-out) (list (to-alien-form expr type))) |
138 | ((eq declaration 'system-area-pointer) |
139 | (list '(make-pointer 0)))))) |
3840beb2 |
140 | (return-values (from-alien-form var type))) |
141 | ((eq style :return) |
142 | (alien-types declaration) |
143 | (alien-bindings |
144 | `(,var ,declaration ,(to-alien-form expr type))) |
145 | (alien-parameters var) |
146 | (return-values (from-alien-form var type))) |
147 | (cleanup |
148 | (alien-types declaration) |
149 | (alien-bindings |
150 | `(,var ,declaration ,(to-alien-form expr type))) |
151 | (alien-parameters var) |
152 | (cleanup-forms cleanup)) |
153 | (t |
154 | (alien-types declaration) |
155 | (alien-parameters (to-alien-form expr type))))))) |
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156 | |
157 | (let* ((alien-name (make-symbol (string lisp-name))) |
158 | (alien-funcall `(alien-funcall ,alien-name ,@(alien-parameters)))) |
159 | `(defun ,lisp-name ,lambda-list |
160 | ,@docs |
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161 | #+cmu(declare (optimize (inhibit-warnings 3))) |
162 | #+sbcl(declare (muffle-conditions compiler-note)) |
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163 | (with-alien ((,alien-name |
164 | (function |
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165 | ,(alien-type return-type) |
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166 | ,@(alien-types)) |
167 | :extern ,foreign-name) |
168 | ,@(alien-bindings)) |
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169 | ,(if return-type |
170 | `(values |
171 | (unwind-protect |
172 | ,(from-alien-form alien-funcall return-type) |
173 | ,@(cleanup-forms)) |
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174 | ,@(return-values)) |
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175 | `(progn |
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176 | (unwind-protect |
177 | ,alien-funcall |
178 | ,@(cleanup-forms)) |
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179 | (values ,@(return-values))))))))) |
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180 | |
181 | |
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182 | ;;; Creates bindings at runtime |
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183 | (defun mkbinding (name return-type &rest arg-types) |
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184 | #+cmu(declare (optimize (inhibit-warnings 3))) |
185 | #+sbcl(declare (muffle-conditions compiler-note)) |
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186 | (let* ((ftype |
187 | `(function ,@(mapcar #'alien-type (cons return-type arg-types)))) |
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188 | (alien |
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189 | (%heap-alien |
190 | (make-heap-alien-info |
191 | :type (parse-alien-type ftype #+sbcl nil) |
177abaa0 |
192 | :sap-form (let ((address (foreign-symbol-address name))) |
193 | (etypecase address |
194 | (integer (int-sap address)) |
195 | (system-area-pointer address)))))) |
9adccb27 |
196 | (translate-arguments (mapcar #'to-alien-function arg-types)) |
197 | (translate-return-value (from-alien-function return-type)) |
198 | (cleanup-arguments (mapcar #'cleanup-function arg-types))) |
199 | |
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200 | #'(lambda (&rest args) |
201 | (map-into args #'funcall translate-arguments args) |
202 | (prog1 |
9adccb27 |
203 | (funcall translate-return-value |
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204 | (apply #'alien-funcall alien args)) |
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205 | (mapc #'funcall cleanup-arguments args))))) |
206 | |
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207 | |
208 | (defmacro defcallback (name (return-type &rest args) &body body) |
73572c12 |
209 | (let ((def-callback #+cmu'alien:def-callback |
210 | #+sbcl'sb-alien:define-alien-function)) |
211 | `(,def-callback ,name |
212 | (,(alien-type return-type) |
213 | ,@(mapcar #'(lambda (arg) |
214 | (destructuring-bind (name type) arg |
215 | `(,name ,(alien-type type)))) |
216 | args)) |
217 | ,(to-alien-form |
7e29d6b1 |
218 | `(let (,@(delete nil |
219 | (mapcar #'(lambda (arg) |
220 | (destructuring-bind (name type) arg |
221 | (let ((from-alien |
222 | (from-alien-form name type))) |
223 | (unless (eq name from-alien) |
224 | `(,name ,from-alien))))) |
225 | args))) |
73572c12 |
226 | ,@body) |
227 | return-type)))) |
228 | |
229 | #+sbcl |
230 | (defun callback (af) |
231 | (sb-alien:alien-function-sap af)) |
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232 | |
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233 | #+sbcl |
234 | (deftype callback () 'sb-alien:alien-function) |
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235 | |
236 | ;;;; Definitons and translations of fundamental types |
237 | |
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238 | (defmacro def-type-method (name args &optional documentation) |
239 | `(progn |
240 | (defgeneric ,name (,@args type &rest args) |
241 | ,@(when documentation `((:documentation ,documentation)))) |
242 | (defmethod ,name (,@args (type symbol) &rest args) |
243 | (let ((class (find-class type nil))) |
244 | (if class |
245 | (apply #',name ,@args class args) |
246 | (multiple-value-bind (super-type expanded-p) |
247 | (type-expand-1 (cons type args)) |
248 | (if expanded-p |
249 | (,name ,@args super-type) |
250 | (call-next-method)))))) |
251 | (defmethod ,name (,@args (type cons) &rest args) |
252 | (declare (ignore args)) |
253 | (apply #',name ,@args (first type) (rest type))))) |
254 | |
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255 | |
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256 | (def-type-method alien-type ()) |
257 | (def-type-method size-of ()) |
258 | (def-type-method to-alien-form (form)) |
259 | (def-type-method from-alien-form (form)) |
260 | (def-type-method cleanup-form (form) |
261 | "Creates a form to clean up after the alien call has finished.") |
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262 | |
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263 | (def-type-method to-alien-function ()) |
264 | (def-type-method from-alien-function ()) |
265 | (def-type-method cleanup-function ()) |
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266 | |
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267 | (def-type-method copy-to-alien-form (form)) |
268 | (def-type-method copy-to-alien-function ()) |
269 | (def-type-method copy-from-alien-form (form)) |
270 | (def-type-method copy-from-alien-function ()) |
271 | |
9adccb27 |
272 | (def-type-method writer-function ()) |
273 | (def-type-method reader-function ()) |
274 | (def-type-method destroy-function ()) |
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275 | |
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276 | (def-type-method unbound-value () |
277 | "First return value is true if the type has an unbound value, second return value is the actual unbound value") |
278 | |
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279 | |
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280 | ;; Sizes of fundamental C types in bytes (8 bits) |
281 | (defconstant +size-of-short+ 2) |
282 | (defconstant +size-of-int+ 4) |
283 | (defconstant +size-of-long+ 4) |
284 | (defconstant +size-of-pointer+ 4) |
285 | (defconstant +size-of-float+ 4) |
286 | (defconstant +size-of-double+ 8) |
287 | |
288 | ;; Sizes of fundamental C types in bits |
289 | (defconstant +bits-of-byte+ 8) |
290 | (defconstant +bits-of-short+ 16) |
291 | (defconstant +bits-of-int+ 32) |
292 | (defconstant +bits-of-long+ 32) |
293 | |
294 | |
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295 | (deftype int () '(signed-byte #.+bits-of-int+)) |
296 | (deftype unsigned-int () '(unsigned-byte #.+bits-of-int+)) |
297 | (deftype long () '(signed-byte #.+bits-of-long+)) |
298 | (deftype unsigned-long () '(unsigned-byte #.+bits-of-long+)) |
299 | (deftype short () '(signed-byte #.+bits-of-short+)) |
300 | (deftype unsigned-short () '(unsigned-byte #.+bits-of-short+)) |
301 | (deftype signed (&optional (size '*)) `(signed-byte ,size)) |
302 | (deftype unsigned (&optional (size '*)) `(unsigned-byte ,size)) |
303 | (deftype char () 'base-char) |
304 | (deftype pointer () 'system-area-pointer) |
305 | (deftype boolean (&optional (size '*)) (declare (ignore size)) `(member t nil)) |
306 | ;(deftype invalid () nil) |
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307 | |
308 | |
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309 | (defmethod to-alien-form (form (type t) &rest args) |
310 | (declare (ignore type args)) |
311 | form) |
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312 | |
9adccb27 |
313 | (defmethod to-alien-function ((type t) &rest args) |
314 | (declare (ignore type args)) |
315 | #'identity) |
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316 | |
9adccb27 |
317 | (defmethod from-alien-form (form (type t) &rest args) |
318 | (declare (ignore type args)) |
319 | form) |
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320 | |
9adccb27 |
321 | (defmethod from-alien-function ((type t) &rest args) |
322 | (declare (ignore type args)) |
323 | #'identity) |
324 | |
325 | (defmethod cleanup-form (form (type t) &rest args) |
326 | (declare (ignore form type args)) |
327 | nil) |
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328 | |
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329 | (defmethod cleanup-function ((type t) &rest args) |
330 | (declare (ignore type args)) |
331 | #'identity) |
332 | |
333 | (defmethod destroy-function ((type t) &rest args) |
334 | (declare (ignore type args)) |
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335 | #'(lambda (location &optional offset) |
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336 | (declare (ignore location offset)))) |
337 | |
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338 | (defmethod copy-to-alien-form (form (type t) &rest args) |
339 | (apply #'to-alien-form form type args)) |
340 | |
341 | (defmethod copy-to-alien-function ((type t) &rest args) |
342 | (apply #'to-alien-function type args)) |
343 | |
344 | (defmethod copy-from-alien-form (form (type t) &rest args) |
345 | (apply #'from-alien-form form type args)) |
346 | |
347 | (defmethod copy-from-alien-function ((type t) &rest args) |
348 | (apply #'from-alien-function type args)) |
349 | |
9adccb27 |
350 | (defmethod alien-type ((type (eql 'signed-byte)) &rest args) |
351 | (declare (ignore type)) |
352 | (destructuring-bind (&optional (size '*)) args |
353 | (ecase size |
73572c12 |
354 | (#.+bits-of-byte+ #+cmu'(alien:signed 8) #+sbcl'(sb-alien:signed 8)) |
355 | (#.+bits-of-short+ #+cmu 'c-call:short #+sbcl 'sb-alien:short) |
356 | ((* #.+bits-of-int+) #+cmu 'c-call:int #+sbcl 'sb-alien:int) |
357 | (#.+bits-of-long+ #+cmu 'c-call:long #+sbcl 'sb-alien:long)))) |
9adccb27 |
358 | |
359 | (defmethod size-of ((type (eql 'signed-byte)) &rest args) |
360 | (declare (ignore type)) |
361 | (destructuring-bind (&optional (size '*)) args |
362 | (ecase size |
363 | (#.+bits-of-byte+ 1) |
364 | (#.+bits-of-short+ +size-of-short+) |
365 | ((* #.+bits-of-int+) +size-of-int+) |
366 | (#.+bits-of-long+ +size-of-long+)))) |
367 | |
12b7df04 |
368 | (defmethod unbound-value ((type t) &rest args) |
369 | (declare (ignore type args)) |
370 | nil) |
371 | |
9adccb27 |
372 | (defmethod writer-function ((type (eql 'signed-byte)) &rest args) |
373 | (declare (ignore type)) |
374 | (destructuring-bind (&optional (size '*)) args |
375 | (let ((size (if (eq size '*) +bits-of-int+ size))) |
376 | (ecase size |
377 | (8 #'(lambda (value location &optional (offset 0)) |
378 | (setf (signed-sap-ref-8 location offset) value))) |
379 | (16 #'(lambda (value location &optional (offset 0)) |
380 | (setf (signed-sap-ref-16 location offset) value))) |
381 | (32 #'(lambda (value location &optional (offset 0)) |
382 | (setf (signed-sap-ref-32 location offset) value))) |
383 | (64 #'(lambda (value location &optional (offset 0)) |
384 | (setf (signed-sap-ref-64 location offset) value))))))) |
385 | |
386 | (defmethod reader-function ((type (eql 'signed-byte)) &rest args) |
387 | (declare (ignore type)) |
388 | (destructuring-bind (&optional (size '*)) args |
389 | (let ((size (if (eq size '*) +bits-of-int+ size))) |
390 | (ecase size |
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391 | (8 #'(lambda (sap &optional (offset 0) weak-p) |
392 | (declare (ignore weak-p)) |
9adccb27 |
393 | (signed-sap-ref-8 sap offset))) |
3005806e |
394 | (16 #'(lambda (sap &optional (offset 0) weak-p) |
395 | (declare (ignore weak-p)) |
9adccb27 |
396 | (signed-sap-ref-16 sap offset))) |
3005806e |
397 | (32 #'(lambda (sap &optional (offset 0) weak-p) |
398 | (declare (ignore weak-p)) |
9adccb27 |
399 | (signed-sap-ref-32 sap offset))) |
3005806e |
400 | (64 #'(lambda (sap &optional (offset 0) weak-p) |
401 | (declare (ignore weak-p)) |
9adccb27 |
402 | (signed-sap-ref-64 sap offset))))))) |
403 | |
404 | (defmethod alien-type ((type (eql 'unsigned-byte)) &rest args) |
405 | (destructuring-bind (&optional (size '*)) args |
406 | (ecase size |
73572c12 |
407 | (#.+bits-of-byte+ #+cmu'(alien:unsigned 8) #+sbcl'(sb-alien:unsigned 8)) |
408 | (#.+bits-of-short+ #+cmu 'c-call:unsigned-short |
409 | #+sbcl 'sb-alien:unsigned-short) |
410 | ((* #.+bits-of-int+) #+cmu 'c-call:unsigned-int |
411 | #+sbcl 'sb-alien:unsigned-int) |
412 | (#.+bits-of-long+ #+cmu 'c-call:unsigned-long |
413 | #+sbcl 'sb-alien:unsigned-long)))) |
9adccb27 |
414 | |
415 | (defmethod size-of ((type (eql 'unsigned-byte)) &rest args) |
416 | (apply #'size-of 'signed args)) |
417 | |
418 | (defmethod writer-function ((type (eql 'unsigned-byte)) &rest args) |
419 | (declare (ignore type)) |
420 | (destructuring-bind (&optional (size '*)) args |
421 | (let ((size (if (eq size '*) +bits-of-int+ size))) |
422 | (ecase size |
423 | (8 #'(lambda (value location &optional (offset 0)) |
424 | (setf (sap-ref-8 location offset) value))) |
425 | (16 #'(lambda (value location &optional (offset 0)) |
426 | (setf (sap-ref-16 location offset) value))) |
427 | (32 #'(lambda (value location &optional (offset 0)) |
428 | (setf (sap-ref-32 location offset) value))) |
429 | (64 #'(lambda (value location &optional (offset 0)) |
430 | (setf (sap-ref-64 location offset) value))))))) |
431 | |
432 | (defmethod reader-function ((type (eql 'unsigned-byte)) &rest args) |
433 | (declare (ignore type)) |
434 | (destructuring-bind (&optional (size '*)) args |
435 | (let ((size (if (eq size '*) +bits-of-int+ size))) |
436 | (ecase size |
3005806e |
437 | (8 #'(lambda (sap &optional (offset 0) weak-p) |
438 | (declare (ignore weak-p)) |
9adccb27 |
439 | (sap-ref-8 sap offset))) |
3005806e |
440 | (16 #'(lambda (sap &optional (offset 0) weak-p) |
441 | (declare (ignore weak-p)) |
9adccb27 |
442 | (sap-ref-16 sap offset))) |
3005806e |
443 | (32 #'(lambda (sap &optional (offset 0) weak-p) |
444 | (declare (ignore weak-p)) |
9adccb27 |
445 | (sap-ref-32 sap offset))) |
3005806e |
446 | (64 #'(lambda (sap &optional (offset 0) weak-p) |
447 | (declare (ignore weak-p)) |
9adccb27 |
448 | (sap-ref-64 sap offset))))))) |
449 | |
450 | |
451 | (defmethod alien-type ((type (eql 'integer)) &rest args) |
452 | (declare (ignore type args)) |
453 | (alien-type 'signed-byte)) |
310da1d5 |
454 | |
9adccb27 |
455 | (defmethod size-of ((type (eql 'integer)) &rest args) |
456 | (declare (ignore type args)) |
457 | (size-of 'signed-byte)) |
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458 | |
78778e5a |
459 | (defmethod writer-function ((type (eql 'integer)) &rest args) |
460 | (declare (ignore type args)) |
461 | (writer-function 'signed-byte)) |
462 | |
463 | (defmethod reader-function ((type (eql 'integer)) &rest args) |
464 | (declare (ignore type args)) |
465 | (reader-function 'signed-byte)) |
466 | |
310da1d5 |
467 | |
9adccb27 |
468 | (defmethod alien-type ((type (eql 'fixnum)) &rest args) |
469 | (declare (ignore type args)) |
470 | (alien-type 'signed-byte)) |
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471 | |
9adccb27 |
472 | (defmethod size-of ((type (eql 'fixnum)) &rest args) |
473 | (declare (ignore type args)) |
474 | (size-of 'signed-byte)) |
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475 | |
476 | |
9adccb27 |
477 | (defmethod alien-type ((type (eql 'single-float)) &rest args) |
478 | (declare (ignore type args)) |
73572c12 |
479 | #+cmu 'alien:single-float #+sbcl 'sb-alien:single-float) |
310da1d5 |
480 | |
9adccb27 |
481 | (defmethod size-of ((type (eql 'single-float)) &rest args) |
482 | (declare (ignore type args)) |
310da1d5 |
483 | +size-of-float+) |
484 | |
af6d8c9a |
485 | (defmethod to-alien-form (form (type (eql 'single-float)) &rest args) |
486 | (declare (ignore type args)) |
487 | `(coerce ,form 'single-float)) |
488 | |
489 | (defmethod to-alien-function ((type (eql 'single-float)) &rest args) |
490 | (declare (ignore type args)) |
491 | #'(lambda (number) |
492 | (coerce number 'single-float))) |
493 | |
9adccb27 |
494 | (defmethod writer-function ((type (eql 'single-float)) &rest args) |
495 | (declare (ignore type args)) |
496 | #'(lambda (value location &optional (offset 0)) |
8755b1a5 |
497 | (setf (sap-ref-single location offset) (coerce value 'single-float)))) |
310da1d5 |
498 | |
9adccb27 |
499 | (defmethod reader-function ((type (eql 'single-float)) &rest args) |
500 | (declare (ignore type args)) |
3005806e |
501 | #'(lambda (sap &optional (offset 0) weak-p) |
502 | (declare (ignore weak-p)) |
9adccb27 |
503 | (sap-ref-single sap offset))) |
310da1d5 |
504 | |
505 | |
9adccb27 |
506 | (defmethod alien-type ((type (eql 'double-float)) &rest args) |
507 | (declare (ignore type args)) |
73572c12 |
508 | #+cmu 'alien:double-float #+sbcl 'sb-alien:double-float) |
310da1d5 |
509 | |
9adccb27 |
510 | (defmethod size-of ((type (eql 'double-float)) &rest args) |
511 | (declare (ignore type args)) |
3d285e35 |
512 | +size-of-double+) |
310da1d5 |
513 | |
af6d8c9a |
514 | (defmethod to-alien-form (form (type (eql 'double-float)) &rest args) |
515 | (declare (ignore type args)) |
516 | `(coerce ,form 'double-float)) |
517 | |
518 | (defmethod to-alien-function ((type (eql 'double-float)) &rest args) |
519 | (declare (ignore type args)) |
520 | #'(lambda (number) |
521 | (coerce number 'double-float))) |
522 | |
9adccb27 |
523 | (defmethod writer-function ((type (eql 'double-float)) &rest args) |
524 | (declare (ignore type args)) |
525 | #'(lambda (value location &optional (offset 0)) |
526 | (setf (sap-ref-double location offset) (coerce value 'double-float)))) |
310da1d5 |
527 | |
9adccb27 |
528 | (defmethod reader-function ((type (eql 'double-float)) &rest args) |
529 | (declare (ignore type args)) |
3005806e |
530 | #'(lambda (sap &optional (offset 0) weak-p) |
531 | (declare (ignore weak-p)) |
9adccb27 |
532 | (sap-ref-double sap offset))) |
310da1d5 |
533 | |
534 | |
9adccb27 |
535 | (defmethod alien-type ((type (eql 'base-char)) &rest args) |
536 | (declare (ignore type args)) |
73572c12 |
537 | #+cmu 'c-call:char #+sbcl 'sb-alien:char) |
310da1d5 |
538 | |
9adccb27 |
539 | (defmethod size-of ((type (eql 'base-char)) &rest args) |
540 | (declare (ignore type args)) |
310da1d5 |
541 | 1) |
542 | |
9adccb27 |
543 | (defmethod writer-function ((type (eql 'base-char)) &rest args) |
544 | (declare (ignore type args)) |
545 | #'(lambda (char location &optional (offset 0)) |
546 | (setf (sap-ref-8 location offset) (char-code char)))) |
310da1d5 |
547 | |
9adccb27 |
548 | (defmethod reader-function ((type (eql 'base-char)) &rest args) |
549 | (declare (ignore type args)) |
3005806e |
550 | #'(lambda (location &optional (offset 0) weak-p) |
551 | (declare (ignore weak-p)) |
9adccb27 |
552 | (code-char (sap-ref-8 location offset)))) |
310da1d5 |
553 | |
554 | |
9adccb27 |
555 | (defmethod alien-type ((type (eql 'string)) &rest args) |
556 | (declare (ignore type args)) |
557 | (alien-type 'pointer)) |
310da1d5 |
558 | |
9adccb27 |
559 | (defmethod size-of ((type (eql 'string)) &rest args) |
560 | (declare (ignore type args)) |
561 | (size-of 'pointer)) |
310da1d5 |
562 | |
9adccb27 |
563 | (defmethod to-alien-form (string (type (eql 'string)) &rest args) |
564 | (declare (ignore type args)) |
310da1d5 |
565 | `(let ((string ,string)) |
566 | ;; Always copy strings to prevent seg fault due to GC |
6896c0f3 |
567 | #+cmu |
310da1d5 |
568 | (copy-memory |
73572c12 |
569 | (vector-sap (coerce string 'simple-base-string)) |
6896c0f3 |
570 | (1+ (length string))) |
571 | #+sbcl |
572 | (let ((utf8 (%deport-utf8-string string))) |
573 | (copy-memory (vector-sap utf8) (length utf8))))) |
310da1d5 |
574 | |
9adccb27 |
575 | (defmethod to-alien-function ((type (eql 'string)) &rest args) |
576 | (declare (ignore type args)) |
577 | #'(lambda (string) |
6896c0f3 |
578 | #+cmu |
9adccb27 |
579 | (copy-memory |
73572c12 |
580 | (vector-sap (coerce string 'simple-base-string)) |
6896c0f3 |
581 | (1+ (length string))) |
582 | #+sbcl |
583 | (let ((utf8 (%deport-utf8-string string))) |
584 | (copy-memory (vector-sap utf8) (length utf8))))) |
9adccb27 |
585 | |
586 | (defmethod from-alien-form (string (type (eql 'string)) &rest args) |
587 | (declare (ignore type args)) |
588 | `(let ((string ,string)) |
589 | (unless (null-pointer-p string) |
9ca5565a |
590 | (prog1 |
6896c0f3 |
591 | #+cmu(%naturalize-c-string string) |
592 | #+sbcl(%naturalize-utf8-string string) |
9ca5565a |
593 | (deallocate-memory string))))) |
310da1d5 |
594 | |
9adccb27 |
595 | (defmethod from-alien-function ((type (eql 'string)) &rest args) |
596 | (declare (ignore type args)) |
597 | #'(lambda (string) |
598 | (unless (null-pointer-p string) |
9ca5565a |
599 | (prog1 |
6896c0f3 |
600 | #+cmu(%naturalize-c-string string) |
601 | #+sbcl(%naturalize-utf8-string string) |
9ca5565a |
602 | (deallocate-memory string))))) |
310da1d5 |
603 | |
9adccb27 |
604 | (defmethod cleanup-form (string (type (eql 'string)) &rest args) |
605 | (declare (ignore type args)) |
606 | `(let ((string ,string)) |
607 | (unless (null-pointer-p string) |
608 | (deallocate-memory string)))) |
609 | |
610 | (defmethod cleanup-function ((type (eql 'string)) &rest args) |
8755b1a5 |
611 | (declare (ignore args)) |
9adccb27 |
612 | #'(lambda (string) |
613 | (unless (null-pointer-p string) |
614 | (deallocate-memory string)))) |
615 | |
9ca5565a |
616 | (defmethod copy-from-alien-form (string (type (eql 'string)) &rest args) |
617 | (declare (ignore type args)) |
618 | `(let ((string ,string)) |
619 | (unless (null-pointer-p string) |
6896c0f3 |
620 | #+cmu(%naturalize-c-string string) |
621 | #+sbcl(%naturalize-utf8-string string)))) |
9ca5565a |
622 | |
623 | (defmethod copy-from-alien-function ((type (eql 'string)) &rest args) |
624 | (declare (ignore type args)) |
625 | #'(lambda (string) |
626 | (unless (null-pointer-p string) |
6896c0f3 |
627 | #+cmu(%naturalize-c-string string) |
628 | #+sbcl(%naturalize-utf8-string string)))) |
9ca5565a |
629 | |
9adccb27 |
630 | (defmethod writer-function ((type (eql 'string)) &rest args) |
631 | (declare (ignore type args)) |
632 | #'(lambda (string location &optional (offset 0)) |
633 | (assert (null-pointer-p (sap-ref-sap location offset))) |
634 | (setf (sap-ref-sap location offset) |
6896c0f3 |
635 | #+cmu |
9adccb27 |
636 | (copy-memory |
73572c12 |
637 | (vector-sap (coerce string 'simple-base-string)) |
6896c0f3 |
638 | (1+ (length string))) |
639 | #+sbcl |
640 | (let ((utf8 (%deport-utf8-string string))) |
641 | (copy-memory (vector-sap utf8) (length utf8)))))) |
9adccb27 |
642 | |
643 | (defmethod reader-function ((type (eql 'string)) &rest args) |
644 | (declare (ignore type args)) |
3005806e |
645 | #'(lambda (location &optional (offset 0) weak-p) |
646 | (declare (ignore weak-p)) |
9adccb27 |
647 | (unless (null-pointer-p (sap-ref-sap location offset)) |
6896c0f3 |
648 | #+cmu(%naturalize-c-string (sap-ref-sap location offset)) |
649 | #+sbcl(%naturalize-utf8-string (sap-ref-sap location offset))))) |
9adccb27 |
650 | |
651 | (defmethod destroy-function ((type (eql 'string)) &rest args) |
652 | (declare (ignore type args)) |
653 | #'(lambda (location &optional (offset 0)) |
654 | (unless (null-pointer-p (sap-ref-sap location offset)) |
655 | (deallocate-memory (sap-ref-sap location offset)) |
656 | (setf (sap-ref-sap location offset) (make-pointer 0))))) |
657 | |
12b7df04 |
658 | (defmethod unbound-value ((type (eql 'string)) &rest args) |
659 | (declare (ignore type args)) |
660 | (values t nil)) |
9adccb27 |
661 | |
6896c0f3 |
662 | |
9adccb27 |
663 | (defmethod alien-type ((type (eql 'pathname)) &rest args) |
664 | (declare (ignore type args)) |
665 | (alien-type 'string)) |
666 | |
667 | (defmethod size-of ((type (eql 'pathname)) &rest args) |
668 | (declare (ignore type args)) |
669 | (size-of 'string)) |
310da1d5 |
670 | |
9adccb27 |
671 | (defmethod to-alien-form (path (type (eql 'pathname)) &rest args) |
672 | (declare (ignore type args)) |
673 | (to-alien-form `(namestring (translate-logical-pathname ,path)) 'string)) |
674 | |
675 | (defmethod to-alien-function ((type (eql 'pathname)) &rest args) |
676 | (declare (ignore type args)) |
677 | (let ((string-function (to-alien-function 'string))) |
678 | #'(lambda (path) |
679 | (funcall string-function (namestring path))))) |
680 | |
681 | (defmethod from-alien-form (string (type (eql 'pathname)) &rest args) |
682 | (declare (ignore type args)) |
683 | `(parse-namestring ,(from-alien-form string 'string))) |
684 | |
685 | (defmethod from-alien-function ((type (eql 'pathname)) &rest args) |
686 | (declare (ignore type args)) |
687 | (let ((string-function (from-alien-function 'string))) |
688 | #'(lambda (string) |
689 | (parse-namestring (funcall string-function string))))) |
690 | |
691 | (defmethod cleanup-form (string (type (eql 'pathnanme)) &rest args) |
692 | (declare (ignore type args)) |
693 | (cleanup-form string 'string)) |
694 | |
695 | (defmethod cleanup-function ((type (eql 'pathnanme)) &rest args) |
696 | (declare (ignore type args)) |
697 | (cleanup-function 'string)) |
698 | |
699 | (defmethod writer-function ((type (eql 'pathname)) &rest args) |
700 | (declare (ignore type args)) |
701 | (let ((string-writer (writer-function 'string))) |
702 | #'(lambda (path location &optional (offset 0)) |
703 | (funcall string-writer (namestring path) location offset)))) |
704 | |
705 | (defmethod reader-function ((type (eql 'pathname)) &rest args) |
706 | (declare (ignore type args)) |
707 | (let ((string-reader (reader-function 'string))) |
3005806e |
708 | #'(lambda (location &optional (offset 0) weak-p) |
709 | (declare (ignore weak-p)) |
9adccb27 |
710 | (let ((string (funcall string-reader location offset))) |
711 | (when string |
712 | (parse-namestring string)))))) |
713 | |
714 | (defmethod destroy-function ((type (eql 'pathname)) &rest args) |
715 | (declare (ignore type args)) |
716 | (destroy-function 'string)) |
717 | |
12b7df04 |
718 | (defmethod unbound-value ((type (eql 'pathname)) &rest args) |
719 | (declare (ignore type args)) |
720 | (unbound-value 'string)) |
721 | |
9adccb27 |
722 | |
723 | (defmethod alien-type ((type (eql 'boolean)) &rest args) |
724 | (apply #'alien-type 'signed-byte args)) |
725 | |
726 | (defmethod size-of ((type (eql 'boolean)) &rest args) |
727 | (apply #'size-of 'signed-byte args)) |
728 | |
729 | (defmethod to-alien-form (boolean (type (eql 'boolean)) &rest args) |
730 | (declare (ignore type args)) |
310da1d5 |
731 | `(if ,boolean 1 0)) |
732 | |
9adccb27 |
733 | (defmethod to-alien-function ((type (eql 'boolean)) &rest args) |
734 | (declare (ignore type args)) |
735 | #'(lambda (boolean) |
736 | (if boolean 1 0))) |
737 | |
738 | (defmethod from-alien-form (boolean (type (eql 'boolean)) &rest args) |
739 | (declare (ignore type args)) |
740 | `(not (zerop ,boolean))) |
741 | |
742 | (defmethod from-alien-function ((type (eql 'boolean)) &rest args) |
743 | (declare (ignore type args)) |
744 | #'(lambda (boolean) |
745 | (not (zerop boolean)))) |
746 | |
747 | (defmethod writer-function ((type (eql 'boolean)) &rest args) |
748 | (declare (ignore type)) |
749 | (let ((writer (apply #'writer-function 'signed-byte args))) |
750 | #'(lambda (boolean location &optional (offset 0)) |
751 | (funcall writer (if boolean 1 0) location offset)))) |
752 | |
753 | (defmethod reader-function ((type (eql 'boolean)) &rest args) |
754 | (declare (ignore type)) |
755 | (let ((reader (apply #'reader-function 'signed-byte args))) |
3005806e |
756 | #'(lambda (location &optional (offset 0) weak-p) |
757 | (declare (ignore weak-p)) |
9adccb27 |
758 | (not (zerop (funcall reader location offset)))))) |
759 | |
760 | |
761 | (defmethod alien-type ((type (eql 'or)) &rest args) |
762 | (let ((alien-type (alien-type (first args)))) |
763 | (unless (every #'(lambda (type) |
764 | (eq alien-type (alien-type type))) |
765 | (rest args)) |
766 | (error "No common alien type specifier for union type: ~A" |
767 | (cons type args))) |
310da1d5 |
768 | alien-type)) |
769 | |
9adccb27 |
770 | (defmethod size-of ((type (eql 'or)) &rest args) |
771 | (declare (ignore type)) |
772 | (size-of (first args))) |
773 | |
774 | (defmethod to-alien-form (form (type (eql 'or)) &rest args) |
775 | (declare (ignore type)) |
776 | `(let ((value ,form)) |
777 | (etypecase value |
778 | ,@(mapcar |
779 | #'(lambda (type) |
780 | `(,type ,(to-alien-form 'value type))) |
781 | args)))) |
782 | |
783 | (defmethod to-alien-function ((type (eql 'or)) &rest types) |
784 | (declare (ignore type)) |
785 | (let ((functions (mapcar #'to-alien-function types))) |
786 | #'(lambda (value) |
787 | (loop |
788 | for function in functions |
789 | for type in types |
790 | when (typep value type) |
791 | do (return (funcall function value)) |
792 | finally (error "~S is not of type ~A" value `(or ,@types)))))) |
793 | |
794 | (defmethod alien-type ((type (eql 'system-area-pointer)) &rest args) |
795 | (declare (ignore type args)) |
310da1d5 |
796 | 'system-area-pointer) |
797 | |
9adccb27 |
798 | (defmethod size-of ((type (eql 'system-area-pointer)) &rest args) |
799 | (declare (ignore type args)) |
800 | +size-of-pointer+) |
310da1d5 |
801 | |
9adccb27 |
802 | (defmethod writer-function ((type (eql 'system-area-pointer)) &rest args) |
803 | (declare (ignore type args)) |
804 | #'(lambda (sap location &optional (offset 0)) |
805 | (setf (sap-ref-sap location offset) sap))) |
310da1d5 |
806 | |
9adccb27 |
807 | (defmethod reader-function ((type (eql 'system-area-pointer)) &rest args) |
808 | (declare (ignore type args)) |
3005806e |
809 | #'(lambda (location &optional (offset 0) weak-p) |
810 | (declare (ignore weak-p)) |
9adccb27 |
811 | (sap-ref-sap location offset))) |
310da1d5 |
812 | |
813 | |
9adccb27 |
814 | (defmethod alien-type ((type (eql 'null)) &rest args) |
815 | (declare (ignore type args)) |
816 | (alien-type 'pointer)) |
310da1d5 |
817 | |
9adccb27 |
818 | (defmethod size-of ((type (eql 'null)) &rest args) |
819 | (declare (ignore type args)) |
820 | (size-of 'pointer)) |
821 | |
822 | (defmethod to-alien-form (null (type (eql 'null)) &rest args) |
823 | (declare (ignore null type args)) |
310da1d5 |
824 | `(make-pointer 0)) |
825 | |
9adccb27 |
826 | (defmethod to-alien-function ((type (eql 'null)) &rest args) |
827 | (declare (ignore type args)) |
828 | #'(lambda (null) |
829 | (declare (ignore null)) |
830 | (make-pointer 0))) |
310da1d5 |
831 | |
310da1d5 |
832 | |
9adccb27 |
833 | (defmethod alien-type ((type (eql 'nil)) &rest args) |
834 | (declare (ignore type args)) |
73572c12 |
835 | 'void) |
9adccb27 |
836 | |
837 | (defmethod from-alien-function ((type (eql 'nil)) &rest args) |
838 | (declare (ignore type args)) |
839 | #'(lambda (value) |
840 | (declare (ignore value)) |
841 | (values))) |
9ca5565a |
842 | |
843 | |
844 | (defmethod alien-type ((type (eql 'copy-of)) &rest args) |
845 | (declare (ignore type)) |
846 | (alien-type (first args))) |
847 | |
848 | (defmethod size-of ((type (eql 'copy-of)) &rest args) |
849 | (declare (ignore type)) |
850 | (size-of (first args))) |
851 | |
852 | (defmethod to-alien-form (form (type (eql 'copy-of)) &rest args) |
853 | (declare (ignore type)) |
854 | (copy-to-alien-form form (first args))) |
855 | |
856 | (defmethod to-alien-function ((type (eql 'copy-of)) &rest args) |
857 | (declare (ignore type)) |
858 | (copy-to-alien-function (first args))) |
859 | |
860 | (defmethod from-alien-form (form (type (eql 'copy-of)) &rest args) |
861 | (declare (ignore type)) |
862 | (copy-from-alien-form form (first args))) |
863 | |
864 | (defmethod from-alien-function ((type (eql 'copy-of)) &rest args) |
865 | (declare (ignore type)) |
866 | (copy-from-alien-function (first args))) |
867 | |
cdd375f3 |
868 | (defmethod reader-function ((type (eql 'copy-of)) &rest args) |
869 | (declare (ignore type)) |
870 | (reader-function (first args))) |
871 | |
872 | (defmethod writer-function ((type (eql 'copy-of)) &rest args) |
873 | (declare (ignore type)) |
874 | (writer-function (first args))) |
46759268 |
875 | |
876 | |
877 | (defmethod alien-type ((type (eql 'callback)) &rest args) |
878 | (declare (ignore type args)) |
879 | (alien-type 'pointer)) |
880 | |
881 | (defmethod size-of ((type (eql 'callback)) &rest args) |
882 | (declare (ignore type args)) |
883 | (size-of 'pointer)) |
884 | |
885 | (defmethod to-alien-form (callback (type (eql 'callback)) &rest args) |
886 | (declare (ignore type args)) |
887 | #+cmu `(callback ,callback) |
888 | #+sbcl `(sb-alien:alien-function-sap ,callback)) |
889 | |
890 | (defmethod to-alien-function ((type (eql 'callback)) &rest args) |
891 | (declare (ignore type args)) |
892 | #+cmu #'(lambda (callback) (callback callback)) |
893 | #+sbcl #'sb-alien:alien-function-sap) |
894 | |
895 | #+cmu |
896 | (defun find-callback (pointer) |
897 | (find pointer alien::*callbacks* :key #'callback-trampoline :test #'sap=)) |
898 | |
899 | (defmethod from-alien-form (pointer (type (eql 'callback)) &rest args) |
900 | (declare (ignore type args)) |
901 | #+cmu `(find-callback ,pointer) |
902 | #+sbcl `(sb-alien::%find-alien-function ,pointer)) |
903 | |
904 | (defmethod from-alien-function ((type (eql 'callback)) &rest args) |
905 | (declare (ignore type args)) |
906 | #+cmu #'find-callback |
907 | #+sbcl #'sb-alien::%find-alien-function) |
908 | |
909 | (defmethod writer-function ((type (eql 'callback)) &rest args) |
910 | (declare (ignore type args)) |
911 | (let ((writer (writer-function 'pointer)) |
912 | (to-alien (to-alien-function 'callback))) |
913 | #'(lambda (callback location &optional (offset 0)) |
914 | (funcall writer (funcall to-alien callback) location offset)))) |
915 | |
916 | (defmethod reader-function ((type (eql 'callback)) &rest args) |
917 | (declare (ignore type args)) |
918 | (let ((reader (reader-function 'pointer)) |
919 | (from-alien (from-alien-function 'callback))) |
3005806e |
920 | #'(lambda (location &optional (offset 0) weak-p) |
921 | (declare (ignore weak-p)) |
46759268 |
922 | (let ((pointer (funcall reader location offset))) |
923 | (unless (null-pointer-p pointer) |
924 | (funcall from-alien pointer)))))) |
925 | |
926 | (defmethod unbound-value ((type (eql 'callback)) &rest args) |
927 | (declare (ignore type args)) |
928 | (values t nil)) |