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1 | ;; Common Lisp bindings for GTK+ 2.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 | |
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23 | ;; $Id: glib.lisp,v 1.33 2006-02-09 22:24:31 espen Exp $ |
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24 | |
25 | |
26 | (in-package "GLIB") |
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27 | |
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28 | (use-prefix "g") |
29 | |
30 | |
31 | ;;;; Memory management |
32 | |
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33 | (defbinding (allocate-memory "g_malloc0") () pointer |
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34 | (size unsigned-long)) |
35 | |
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36 | (defbinding (reallocate-memory "g_realloc") () pointer |
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37 | (address pointer) |
38 | (size unsigned-long)) |
39 | |
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40 | (defbinding (deallocate-memory "g_free") () nil |
41 | (address pointer)) |
9adccb27 |
42 | ;; (defun deallocate-memory (address) |
43 | ;; (declare (ignore address))) |
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44 | |
45 | (defun copy-memory (from length &optional (to (allocate-memory length))) |
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46 | #+cmu(system-area-copy from 0 to 0 (* 8 length)) |
47 | #+sbcl(system-area-ub8-copy from 0 to 0 length) |
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48 | to) |
49 | |
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50 | (defmacro with-allocated-memory ((var size) &body body) |
51 | `(let ((,var (allocate-memory ,size))) |
52 | (unwind-protect |
53 | (progn ,@body) |
54 | (deallocate-memory ,var)))) |
55 | |
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56 | |
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57 | ;;;; User data mechanism |
58 | |
59 | (internal *user-data* *user-data-count*) |
60 | |
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61 | (defvar *user-data* (make-hash-table)) |
62 | (defvar *user-data-count* 0) |
63 | |
64 | (defun register-user-data (object &optional destroy-function) |
65 | (check-type destroy-function (or null symbol function)) |
66 | (incf *user-data-count*) |
67 | (setf |
68 | (gethash *user-data-count* *user-data*) |
69 | (cons object destroy-function)) |
70 | *user-data-count*) |
71 | |
72 | (defun find-user-data (id) |
73 | (check-type id fixnum) |
74 | (multiple-value-bind (user-data p) (gethash id *user-data*) |
75 | (values (car user-data) p))) |
76 | |
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77 | (defun user-data-exists-p (id) |
78 | (nth-value 1 (find-user-data id))) |
79 | |
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80 | (defun update-user-data (id object) |
81 | (check-type id fixnum) |
82 | (multiple-value-bind (user-data exists-p) (gethash id *user-data*) |
83 | (cond |
84 | ((not exists-p) (error "User data id ~A does not exist" id)) |
85 | (t |
86 | (when (cdr user-data) |
87 | (funcall (cdr user-data) (car user-data))) |
88 | (setf (car user-data) object))))) |
89 | |
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90 | (defun destroy-user-data (id) |
91 | (check-type id fixnum) |
92 | (let ((user-data (gethash id *user-data*))) |
93 | (when (cdr user-data) |
94 | (funcall (cdr user-data) (car user-data)))) |
95 | (remhash id *user-data*)) |
96 | |
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97 | |
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98 | ;;;; Quarks |
99 | |
100 | (deftype quark () 'unsigned) |
101 | |
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102 | (defbinding %quark-from-string () quark |
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103 | (string string)) |
104 | |
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105 | (defun quark-intern (object) |
106 | (etypecase object |
107 | (quark object) |
108 | (string (%quark-from-string object)) |
109 | (symbol (%quark-from-string (format nil "clg-~A:~A" |
110 | (package-name (symbol-package object)) |
111 | object))))) |
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112 | |
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113 | (defbinding quark-to-string () (copy-of string) |
114 | (quark quark)) |
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115 | |
116 | |
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117 | ;;;; Linked list (GList) |
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118 | |
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119 | (deftype glist (type) |
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120 | `(or (null (cons ,type list)))) |
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121 | |
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122 | (defbinding (%glist-append "g_list_append") () pointer |
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123 | (glist pointer) |
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124 | (nil null)) |
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125 | |
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126 | (defun make-glist (type list) |
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127 | (loop |
128 | with writer = (writer-function type) |
129 | for element in list |
130 | as glist = (%glist-append (or glist (make-pointer 0))) |
131 | do (funcall writer element glist) |
132 | finally (return glist))) |
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133 | |
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134 | (defun glist-next (glist) |
135 | (unless (null-pointer-p glist) |
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136 | (sap-ref-sap glist +size-of-pointer+))) |
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137 | |
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138 | ;; Also used for gslists |
139 | (defun map-glist (seqtype function glist element-type) |
140 | (let ((reader (reader-function element-type))) |
141 | (case seqtype |
142 | ((nil) |
143 | (loop |
144 | as tmp = glist then (glist-next tmp) |
145 | until (null-pointer-p tmp) |
146 | do (funcall function (funcall reader tmp)))) |
147 | (list |
148 | (loop |
149 | as tmp = glist then (glist-next tmp) |
150 | until (null-pointer-p tmp) |
151 | collect (funcall function (funcall reader tmp)))) |
152 | (t |
153 | (coerce |
154 | (loop |
155 | as tmp = glist then (glist-next tmp) |
156 | until (null-pointer-p tmp) |
157 | collect (funcall function (funcall reader tmp))) |
158 | seqtype))))) |
159 | |
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160 | (defbinding (glist-free "g_list_free") () nil |
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161 | (glist pointer)) |
162 | |
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163 | (defun destroy-glist (glist element-type) |
164 | (loop |
165 | with destroy = (destroy-function element-type) |
166 | as tmp = glist then (glist-next tmp) |
167 | until (null-pointer-p tmp) |
168 | do (funcall destroy tmp 0)) |
169 | (glist-free glist)) |
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170 | |
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171 | (defmethod alien-type ((type (eql 'glist)) &rest args) |
172 | (declare (ignore type args)) |
173 | (alien-type 'pointer)) |
174 | |
175 | (defmethod size-of ((type (eql 'glist)) &rest args) |
176 | (declare (ignore type args)) |
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177 | (size-of 'pointer)) |
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178 | |
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179 | (defmethod to-alien-form (list (type (eql 'glist)) &rest args) |
180 | (declare (ignore type)) |
181 | (destructuring-bind (element-type) args |
182 | `(make-glist ',element-type ,list))) |
183 | |
184 | (defmethod to-alien-function ((type (eql 'glist)) &rest args) |
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185 | (declare (ignore type)) |
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186 | (destructuring-bind (element-type) args |
187 | #'(lambda (list) |
188 | (make-glist element-type list)))) |
189 | |
190 | (defmethod from-alien-form (glist (type (eql 'glist)) &rest args) |
191 | (declare (ignore type)) |
192 | (destructuring-bind (element-type) args |
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193 | `(let ((glist ,glist)) |
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194 | (unwind-protect |
195 | (map-glist 'list #'identity glist ',element-type) |
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196 | (destroy-glist glist ',element-type))))) |
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197 | |
198 | (defmethod from-alien-function ((type (eql 'glist)) &rest args) |
199 | (declare (ignore type)) |
200 | (destructuring-bind (element-type) args |
201 | #'(lambda (glist) |
202 | (unwind-protect |
203 | (map-glist 'list #'identity glist element-type) |
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204 | (destroy-glist glist element-type))))) |
205 | |
206 | (defmethod copy-from-alien-form (glist (type (eql 'glist)) &rest args) |
207 | (declare (ignore type)) |
208 | (destructuring-bind (element-type) args |
209 | `(map-glist 'list #'identity ,glist ',element-type))) |
210 | |
211 | (defmethod copy-from-alien-function ((type (eql 'glist)) &rest args) |
212 | (declare (ignore type)) |
213 | (destructuring-bind (element-type) args |
214 | #'(lambda (glist) |
215 | (map-glist 'list #'identity glist element-type)))) |
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216 | |
217 | (defmethod cleanup-form (glist (type (eql 'glist)) &rest args) |
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218 | (declare (ignore type)) |
219 | (destructuring-bind (element-type) args |
220 | `(destroy-glist ,glist ',element-type))) |
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221 | |
222 | (defmethod cleanup-function ((type (eql 'glist)) &rest args) |
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223 | (declare (ignore type)) |
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224 | (destructuring-bind (element-type) args |
225 | #'(lambda (glist) |
226 | (destroy-glist glist element-type)))) |
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227 | |
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228 | (defmethod writer-function ((type (eql 'glist)) &rest args) |
229 | (declare (ignore type)) |
230 | (destructuring-bind (element-type) args |
231 | #'(lambda (list location &optional (offset 0)) |
232 | (setf |
233 | (sap-ref-sap location offset) |
234 | (make-glist element-type list))))) |
235 | |
236 | (defmethod reader-function ((type (eql 'glist)) &rest args) |
237 | (declare (ignore type)) |
238 | (destructuring-bind (element-type) args |
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239 | #'(lambda (location &optional (offset 0) weak-p) |
240 | (declare (ignore weak-p)) |
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241 | (unless (null-pointer-p (sap-ref-sap location offset)) |
242 | (map-glist 'list #'identity (sap-ref-sap location offset) element-type))))) |
243 | |
244 | (defmethod destroy-function ((type (eql 'glist)) &rest args) |
245 | (declare (ignore type)) |
246 | (destructuring-bind (element-type) args |
247 | #'(lambda (location &optional (offset 0)) |
248 | (unless (null-pointer-p (sap-ref-sap location offset)) |
249 | (destroy-glist (sap-ref-sap location offset) element-type) |
250 | (setf (sap-ref-sap location offset) (make-pointer 0)))))) |
251 | |
252 | |
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253 | |
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254 | ;;;; Single linked list (GSList) |
255 | |
256 | (deftype gslist (type) `(or (null (cons ,type list)))) |
257 | |
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258 | (defbinding (%gslist-prepend "g_slist_prepend") () pointer |
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259 | (gslist pointer) |
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260 | (nil null)) |
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261 | |
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262 | (defun make-gslist (type list) |
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263 | (loop |
264 | with writer = (writer-function type) |
265 | for element in (reverse list) |
266 | as gslist = (%gslist-prepend (or gslist (make-pointer 0))) |
267 | do (funcall writer element gslist) |
268 | finally (return gslist))) |
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269 | |
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270 | (defbinding (gslist-free "g_slist_free") () nil |
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271 | (gslist pointer)) |
272 | |
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273 | (defun destroy-gslist (gslist element-type) |
274 | (loop |
275 | with destroy = (destroy-function element-type) |
276 | as tmp = gslist then (glist-next tmp) |
277 | until (null-pointer-p tmp) |
278 | do (funcall destroy tmp 0)) |
279 | (gslist-free gslist)) |
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280 | |
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281 | (defmethod alien-type ((type (eql 'gslist)) &rest args) |
282 | (declare (ignore type args)) |
283 | (alien-type 'pointer)) |
284 | |
285 | (defmethod size-of ((type (eql 'gslist)) &rest args) |
286 | (declare (ignore type args)) |
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287 | (size-of 'pointer)) |
288 | |
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289 | (defmethod to-alien-form (list (type (eql 'gslist)) &rest args) |
290 | (declare (ignore type)) |
291 | (destructuring-bind (element-type) args |
292 | `(make-sglist ',element-type ,list))) |
293 | |
294 | (defmethod to-alien-function ((type (eql 'gslist)) &rest args) |
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295 | (declare (ignore type)) |
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296 | (destructuring-bind (element-type) args |
297 | #'(lambda (list) |
298 | (make-gslist element-type list)))) |
299 | |
300 | (defmethod from-alien-form (gslist (type (eql 'gslist)) &rest args) |
301 | (declare (ignore type)) |
302 | (destructuring-bind (element-type) args |
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303 | `(let ((gslist ,gslist)) |
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304 | (unwind-protect |
305 | (map-glist 'list #'identity gslist ',element-type) |
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306 | (destroy-gslist gslist ',element-type))))) |
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307 | |
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308 | (defmethod from-alien-function ((type (eql 'gslist)) &rest args) |
309 | (declare (ignore type)) |
310 | (destructuring-bind (element-type) args |
311 | #'(lambda (gslist) |
312 | (unwind-protect |
313 | (map-glist 'list #'identity gslist element-type) |
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314 | (destroy-gslist gslist element-type))))) |
315 | |
316 | (defmethod copy-from-alien-form (gslist (type (eql 'gslist)) &rest args) |
317 | (declare (ignore type)) |
318 | (destructuring-bind (element-type) args |
319 | `(map-glist 'list #'identity ,gslist ',element-type))) |
320 | |
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321 | (defmethod copy-from-alien-function ((type (eql 'gslist)) &rest args) |
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322 | (declare (ignore type)) |
323 | (destructuring-bind (element-type) args |
324 | #'(lambda (gslist) |
325 | (map-glist 'list #'identity gslist element-type)))) |
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326 | |
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327 | (defmethod cleanup-form (gslist (type (eql 'gslist)) &rest args) |
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328 | (declare (ignore type)) |
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329 | (destructuring-bind (element-type) args |
330 | `(destroy-gslist ,gslist ',element-type))) |
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331 | |
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332 | (defmethod cleanup-function ((type (eql 'gslist)) &rest args) |
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333 | (declare (ignore type)) |
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334 | (destructuring-bind (element-type) args |
335 | #'(lambda (gslist) |
336 | (destroy-gslist gslist element-type)))) |
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337 | |
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338 | (defmethod writer-function ((type (eql 'gslist)) &rest args) |
339 | (declare (ignore type)) |
340 | (destructuring-bind (element-type) args |
341 | #'(lambda (list location &optional (offset 0)) |
342 | (setf |
343 | (sap-ref-sap location offset) |
344 | (make-gslist element-type list))))) |
345 | |
346 | (defmethod reader-function ((type (eql 'gslist)) &rest args) |
347 | (declare (ignore type)) |
348 | (destructuring-bind (element-type) args |
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349 | #'(lambda (location &optional (offset 0) weak-p) |
350 | (declare (ignore weak-p)) |
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351 | (unless (null-pointer-p (sap-ref-sap location offset)) |
352 | (map-glist 'list #'identity (sap-ref-sap location offset) element-type))))) |
353 | |
354 | (defmethod destroy-function ((type (eql 'gslist)) &rest args) |
355 | (declare (ignore type)) |
356 | (destructuring-bind (element-type) args |
357 | #'(lambda (location &optional (offset 0)) |
358 | (unless (null-pointer-p (sap-ref-sap location offset)) |
359 | (destroy-gslist (sap-ref-sap location offset) element-type) |
360 | (setf (sap-ref-sap location offset) (make-pointer 0)))))) |
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361 | |
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362 | |
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363 | ;;; Vector |
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364 | |
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365 | (defun make-c-vector (type length &optional content location) |
366 | (let* ((size-of-type (size-of type)) |
367 | (location (or location (allocate-memory (* size-of-type length)))) |
368 | (writer (writer-function type))) |
814ccf77 |
369 | (etypecase content |
370 | (vector |
371 | (loop |
372 | for element across content |
373 | for i from 0 below length |
374 | as offset = 0 then (+ offset size-of-type) |
375 | do (funcall writer element location offset))) |
376 | (list |
377 | (loop |
378 | for element in content |
379 | for i from 0 below length |
380 | as offset = 0 then (+ offset size-of-type) |
381 | do (funcall writer element location offset)))) |
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382 | location)) |
383 | |
384 | |
385 | (defun map-c-vector (seqtype function location element-type length) |
386 | (let ((reader (reader-function element-type)) |
387 | (size-of-element (size-of element-type))) |
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388 | (case seqtype |
389 | ((nil) |
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390 | (loop |
391 | for i from 0 below length |
392 | as offset = 0 then (+ offset size-of-element) |
393 | do (funcall function (funcall reader location offset)))) |
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394 | (list |
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395 | (loop |
396 | for i from 0 below length |
397 | as offset = 0 then (+ offset size-of-element) |
398 | collect (funcall function (funcall reader location offset)))) |
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399 | (t |
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400 | (loop |
401 | with sequence = (make-sequence seqtype length) |
402 | for i from 0 below length |
403 | as offset = 0 then (+ offset size-of-element) |
404 | do (setf |
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405 | (elt sequence i) |
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406 | (funcall function (funcall reader location offset))) |
407 | finally (return sequence)))))) |
408 | |
409 | |
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410 | (defun destroy-c-vector (location element-type length) |
411 | (loop |
412 | with destroy = (destroy-function element-type) |
413 | with element-size = (size-of element-type) |
414 | for i from 0 below length |
415 | as offset = 0 then (+ offset element-size) |
416 | do (funcall destroy location offset)) |
417 | (deallocate-memory location)) |
418 | |
419 | |
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420 | (defmethod alien-type ((type (eql 'vector)) &rest args) |
421 | (declare (ignore type args)) |
422 | (alien-type 'pointer)) |
423 | |
424 | (defmethod size-of ((type (eql 'vector)) &rest args) |
425 | (declare (ignore type args)) |
426 | (size-of 'pointer)) |
427 | |
428 | (defmethod to-alien-form (vector (type (eql 'vector)) &rest args) |
429 | (declare (ignore type)) |
430 | (destructuring-bind (element-type &optional (length '*)) args |
431 | (if (eq length '*) |
432 | `(let* ((vector ,vector) |
433 | (location (sap+ |
434 | (allocate-memory (+ ,+size-of-int+ |
435 | (* ,(size-of element-type) |
436 | (length vector)))) |
437 | ,+size-of-int+))) |
438 | (make-c-vector ',element-type (length vector) vector location) |
439 | (setf (sap-ref-32 location ,(- +size-of-int+)) (length vector)) |
440 | location) |
441 | `(make-c-vector ',element-type ,length ,vector)))) |
442 | |
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443 | (defmethod from-alien-form (c-vector (type (eql 'vector)) &rest args) |
444 | (declare (ignore type)) |
445 | (destructuring-bind (element-type &optional (length '*)) args |
446 | (if (eq length '*) |
447 | (error "Can't use vector of variable size as return type") |
448 | `(let ((c-vector ,c-vector)) |
449 | (prog1 |
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450 | (map-c-vector 'vector #'identity c-vector ',element-type ,length) |
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451 | (destroy-c-vector c-vector ',element-type ,length)))))) |
452 | |
453 | (defmethod copy-from-alien-form (c-vector (type (eql 'vector)) &rest args) |
9adccb27 |
454 | (declare (ignore type)) |
455 | (destructuring-bind (element-type &optional (length '*)) args |
456 | (if (eq length '*) |
457 | (error "Can't use vector of variable size as return type") |
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458 | `(map-c-vector 'vector #'identity ,c-vector ',element-type ,length)))) |
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459 | |
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460 | (defmethod copy-from-alien-function ((type (eql 'vector)) &rest args) |
461 | (declare (ignore type)) |
462 | (destructuring-bind (element-type &optional (length '*)) args |
463 | (if (eq length '*) |
464 | (error "Can't use vector of variable size as return type") |
465 | #'(lambda (c-vector) |
466 | (map-c-vector 'vector #'identity c-vector element-type length))))) |
467 | |
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468 | (defmethod cleanup-form (location (type (eql 'vector)) &rest args) |
469 | (declare (ignore type)) |
470 | (destructuring-bind (element-type &optional (length '*)) args |
471 | `(let* ((location ,location) |
472 | (length ,(if (eq length '*) |
473 | `(sap-ref-32 location ,(- +size-of-int+)) |
474 | length))) |
475 | (loop |
476 | with destroy = (destroy-function ',element-type) |
477 | for i from 0 below length |
478 | as offset = 0 then (+ offset ,(size-of element-type)) |
479 | do (funcall destroy location offset)) |
480 | (deallocate-memory ,(if (eq length '*) |
481 | `(sap+ location ,(- +size-of-int+)) |
482 | 'location))))) |
16bf1149 |
483 | |
484 | (defmethod writer-function ((type (eql 'vector)) &rest args) |
485 | (declare (ignore type)) |
486 | (destructuring-bind (element-type &optional (length '*)) args |
487 | #'(lambda (vector location &optional (offset 0)) |
488 | (setf |
489 | (sap-ref-sap location offset) |
490 | (make-c-vector element-type length vector))))) |
491 | |
492 | (defmethod reader-function ((type (eql 'vector)) &rest args) |
493 | (declare (ignore type)) |
494 | (destructuring-bind (element-type &optional (length '*)) args |
495 | (if (eq length '*) |
496 | (error "Can't create reader function for vector of variable size") |
3005806e |
497 | #'(lambda (location &optional (offset 0) weak-p) |
498 | (declare (ignore weak-p)) |
16bf1149 |
499 | (unless (null-pointer-p (sap-ref-sap location offset)) |
500 | (map-c-vector 'vector #'identity (sap-ref-sap location offset) |
501 | element-type length)))))) |
502 | |
503 | (defmethod destroy-function ((type (eql 'vector)) &rest args) |
504 | (declare (ignore type)) |
505 | (destructuring-bind (element-type &optional (length '*)) args |
506 | (if (eq length '*) |
507 | (error "Can't create destroy function for vector of variable size") |
508 | #'(lambda (location &optional (offset 0)) |
509 | (unless (null-pointer-p (sap-ref-sap location offset)) |
510 | (destroy-c-vector |
511 | (sap-ref-sap location offset) element-type length) |
512 | (setf (sap-ref-sap location offset) (make-pointer 0))))))) |
463fe62f |
513 | |
514 | |
515 | ;;;; Null terminated vector |
516 | |
517 | (defun make-0-vector (type content &optional location) |
518 | (let* ((size-of-type (size-of type)) |
519 | (location (or |
520 | location |
521 | (allocate-memory (* size-of-type (1+ (length content)))))) |
522 | (writer (writer-function type))) |
523 | (etypecase content |
524 | (vector |
525 | (loop |
526 | for element across content |
527 | as offset = 0 then (+ offset size-of-type) |
528 | do (funcall writer element location offset) |
529 | finally (setf (sap-ref-sap location offset) (make-pointer 0)))) |
530 | (list |
531 | (loop |
532 | for element in content |
533 | as offset = 0 then (+ offset size-of-type) |
534 | do (funcall writer element location offset) |
535 | finally (setf (sap-ref-sap location (+ offset size-of-type)) (make-pointer 0))))) |
536 | location)) |
537 | |
538 | |
539 | (defun map-0-vector (seqtype function location element-type) |
540 | (let ((reader (reader-function element-type)) |
541 | (size-of-element (size-of element-type))) |
542 | (case seqtype |
543 | ((nil) |
544 | (loop |
545 | as offset = 0 then (+ offset size-of-element) |
546 | until (null-pointer-p (sap-ref-sap location offset)) |
547 | do (funcall function (funcall reader location offset)))) |
548 | (list |
549 | (loop |
550 | as offset = 0 then (+ offset size-of-element) |
551 | until (null-pointer-p (sap-ref-sap location offset)) |
552 | collect (funcall function (funcall reader location offset)))) |
553 | (t |
554 | (coerce |
555 | (loop |
556 | as offset = 0 then (+ offset size-of-element) |
557 | until (null-pointer-p (sap-ref-sap location offset)) |
558 | collect (funcall function (funcall reader location offset))) |
559 | seqtype))))) |
560 | |
561 | |
562 | (defun destroy-0-vector (location element-type) |
563 | (loop |
564 | with destroy = (destroy-function element-type) |
565 | with element-size = (size-of element-type) |
566 | as offset = 0 then (+ offset element-size) |
567 | until (null-pointer-p (sap-ref-sap location offset)) |
568 | do (funcall destroy location offset)) |
569 | (deallocate-memory location)) |
570 | |
5e8ceafa |
571 | (deftype null-terminated-vector (element-type) `(vector ,element-type)) |
463fe62f |
572 | |
545712f4 |
573 | (defmethod alien-type ((type (eql 'null-terminated-vector)) &rest args) |
463fe62f |
574 | (declare (ignore type args)) |
575 | (alien-type 'pointer)) |
576 | |
545712f4 |
577 | (defmethod size-of ((type (eql 'null-terminated-vector)) &rest args) |
463fe62f |
578 | (declare (ignore type args)) |
5e8ceafa |
579 | (size-of 'pointer)) |
580 | |
581 | (defmethod to-alien-form (vector (type (eql 'null-terminated-vector)) &rest args) |
582 | (declare (ignore type)) |
583 | (destructuring-bind (element-type) args |
584 | `(make-0-vector ',element-type ,vector))) |
585 | |
586 | (defmethod from-alien-form (c-vector (type (eql 'null-terminated-vector)) &rest args) |
587 | (declare (ignore type)) |
588 | (destructuring-bind (element-type) args |
589 | `(let ((c-vector ,c-vector)) |
590 | (prog1 |
591 | (map-0-vector 'vector #'identity c-vector ',element-type) |
592 | (destroy-0-vector c-vector ',element-type))))) |
593 | |
594 | (defmethod copy-from-alien-form (c-vector (type (eql 'null-terminated-vector)) &rest args) |
595 | (declare (ignore type)) |
596 | (destructuring-bind (element-type) args |
597 | `(map-0-vector 'vector #'identity ,c-vector ',element-type))) |
598 | |
599 | (defmethod cleanup-form (location (type (eql 'null-terminated-vector)) &rest args) |
600 | (declare (ignore type)) |
601 | (destructuring-bind (element-type) args |
602 | `(destroy-0-vector ,location ',element-type))) |
463fe62f |
603 | |
545712f4 |
604 | (defmethod writer-function ((type (eql 'null-terminated-vector)) &rest args) |
463fe62f |
605 | (declare (ignore type)) |
545712f4 |
606 | (destructuring-bind (element-type) args |
463fe62f |
607 | (unless (eq (alien-type element-type) (alien-type 'pointer)) |
608 | (error "Elements in null-terminated vectors need to be of pointer types")) |
609 | #'(lambda (vector location &optional (offset 0)) |
610 | (setf |
611 | (sap-ref-sap location offset) |
612 | (make-0-vector element-type vector))))) |
613 | |
545712f4 |
614 | (defmethod reader-function ((type (eql 'null-terminated-vector)) &rest args) |
463fe62f |
615 | (declare (ignore type)) |
545712f4 |
616 | (destructuring-bind (element-type) args |
463fe62f |
617 | (unless (eq (alien-type element-type) (alien-type 'pointer)) |
618 | (error "Elements in null-terminated vectors need to be of pointer types")) |
3005806e |
619 | #'(lambda (location &optional (offset 0) weak-p) |
620 | (declare (ignore weak-p)) |
463fe62f |
621 | (unless (null-pointer-p (sap-ref-sap location offset)) |
622 | (map-0-vector 'vector #'identity (sap-ref-sap location offset) |
623 | element-type))))) |
624 | |
545712f4 |
625 | (defmethod destroy-function ((type (eql 'null-terminated-vector)) &rest args) |
463fe62f |
626 | (declare (ignore type)) |
545712f4 |
627 | (destructuring-bind (element-type) args |
463fe62f |
628 | (unless (eq (alien-type element-type) (alien-type 'pointer)) |
629 | (error "Elements in null-terminated vectors need to be of pointer types")) |
630 | #'(lambda (location &optional (offset 0)) |
631 | (unless (null-pointer-p (sap-ref-sap location offset)) |
545712f4 |
632 | (destroy-0-vector |
463fe62f |
633 | (sap-ref-sap location offset) element-type) |
634 | (setf (sap-ref-sap location offset) (make-pointer 0)))))) |
635 | |
545712f4 |
636 | (defmethod unbound-value ((type (eql 'null-terminated-vector)) &rest args) |
637 | (declare (ignore type args)) |
463fe62f |
638 | (values t nil)) |
5e8ceafa |
639 | |
640 | |
641 | ;;; Counted vector |
642 | |
643 | (defun make-counted-vector (type content) |
644 | (let* ((size-of-type (size-of type)) |
645 | (length (length content)) |
646 | (location |
647 | (allocate-memory (+ +size-of-int+ (* size-of-type length))))) |
648 | (setf (sap-ref-32 location 0) length) |
649 | (make-c-vector type length content (sap+ location +size-of-int+)))) |
650 | |
651 | (defun map-counted-vector (seqtype function location element-type) |
652 | (let ((length (sap-ref-32 location 0))) |
653 | (map-c-vector |
654 | seqtype function (sap+ location +size-of-int+) |
655 | element-type length))) |
656 | |
657 | (defun destroy-counted-vector (location element-type) |
658 | (loop |
659 | with destroy = (destroy-function element-type) |
660 | with element-size = (size-of element-type) |
661 | for i from 0 below (sap-ref-32 location 0) |
662 | as offset = +size-of-int+ then (+ offset element-size) |
663 | do (funcall destroy location offset)) |
664 | (deallocate-memory location)) |
665 | |
666 | |
667 | (deftype counted-vector (element-type) `(vector ,element-type)) |
668 | |
669 | (defmethod alien-type ((type (eql 'counted-vector)) &rest args) |
670 | (declare (ignore type args)) |
671 | (alien-type 'pointer)) |
672 | |
673 | (defmethod size-of ((type (eql 'counted-vector)) &rest args) |
674 | (declare (ignore type args)) |
675 | (size-of 'pointer)) |
676 | |
677 | (defmethod to-alien-form (vector (type (eql 'counted-vector)) &rest args) |
678 | (declare (ignore type)) |
679 | (destructuring-bind (element-type) args |
680 | `(make-counted-vector ',element-type ,vector))) |
681 | |
682 | (defmethod from-alien-form (c-vector (type (eql 'counted-vector)) &rest args) |
683 | (declare (ignore type)) |
684 | (destructuring-bind (element-type) args |
685 | `(let ((c-vector ,c-vector)) |
686 | (prog1 |
687 | (map-counted-vector 'vector #'identity c-vector ',element-type) |
688 | (destroy-counted-vector c-vector ',element-type))))) |
689 | |
690 | (defmethod copy-from-alien-form (c-vector (type (eql 'counted-vector)) &rest args) |
691 | (declare (ignore type)) |
692 | (destructuring-bind (element-type) args |
693 | `(map-counted-vector 'vector #'identity ,c-vector ',element-type))) |
694 | |
695 | (defmethod copy-from-alien-function ((type (eql 'counted-vector)) &rest args) |
696 | (declare (ignore type)) |
697 | (destructuring-bind (element-type) args |
698 | #'(lambda (c-vector) |
699 | (map-counted-vector 'vector #'identity c-vector element-type)))) |
700 | |
701 | (defmethod cleanup-form (location (type (eql 'counted-vector)) &rest args) |
702 | (declare (ignore type)) |
703 | (destructuring-bind (element-type) args |
704 | `(destroy-counted-vector ,location ',element-type))) |
705 | |
706 | (defmethod writer-function ((type (eql 'counted-vector)) &rest args) |
707 | (declare (ignore type)) |
708 | (destructuring-bind (element-type) args |
709 | #'(lambda (vector location &optional (offset 0)) |
710 | (setf |
711 | (sap-ref-sap location offset) |
712 | (make-counted-vector element-type vector))))) |
713 | |
714 | (defmethod reader-function ((type (eql 'counted-vector)) &rest args) |
715 | (declare (ignore type)) |
716 | (destructuring-bind (element-type) args |
3005806e |
717 | #'(lambda (location &optional (offset 0) weak-p) |
718 | (declare (ignore weak-p)) |
5e8ceafa |
719 | (unless (null-pointer-p (sap-ref-sap location offset)) |
720 | (map-counted-vector 'vector #'identity |
721 | (sap-ref-sap location offset) element-type))))) |
722 | |
723 | (defmethod destroy-function ((type (eql 'counted-vector)) &rest args) |
724 | (declare (ignore type)) |
725 | (destructuring-bind (element-type) args |
726 | #'(lambda (location &optional (offset 0)) |
727 | (unless (null-pointer-p (sap-ref-sap location offset)) |
728 | (destroy-counted-vector |
729 | (sap-ref-sap location offset) element-type) |
730 | (setf (sap-ref-sap location offset) (make-pointer 0)))))) |