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2ade72d7 | 1 | /* Copyright (C) 1995,1996,1998,1999,2000,2001 Free Software Foundation, Inc. |
0f2d19dd JB |
2 | * |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
17 | * |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
1bbd0b84 | 41 | |
1bbd0b84 | 42 | |
0f2d19dd JB |
43 | \f |
44 | ||
45 | #include <stdio.h> | |
e6e2e95a MD |
46 | #include <errno.h> |
47 | ||
a0599745 | 48 | #include "libguile/_scm.h" |
20e6290e | 49 | |
a0599745 MD |
50 | #include "libguile/objects.h" |
51 | #include "libguile/ports.h" | |
d7ec6b9f | 52 | |
0f2d19dd JB |
53 | #ifdef HAVE_MALLOC_H |
54 | #include <malloc.h> | |
55 | #endif | |
56 | ||
a0599745 | 57 | #include "libguile/smob.h" |
9dd5943c | 58 | |
0f2d19dd JB |
59 | \f |
60 | ||
61 | /* scm_smobs scm_numsmob | |
7a7f7c53 | 62 | * implement a fixed sized array of smob records. |
0f2d19dd JB |
63 | * Indexes into this table are used when generating type |
64 | * tags for smobjects (if you know a tag you can get an index and conversely). | |
65 | */ | |
7a7f7c53 DH |
66 | |
67 | #define MAX_SMOB_COUNT 256 | |
c014a02e | 68 | long scm_numsmob; |
7a7f7c53 | 69 | scm_smob_descriptor scm_smobs[MAX_SMOB_COUNT]; |
0f2d19dd | 70 | |
9dd5943c MD |
71 | /* {Mark} |
72 | */ | |
73 | ||
74 | /* This function is vestigial. It used to be the mark function's | |
75 | responsibility to set the mark bit on the smob or port, but now the | |
76 | generic marking routine in gc.c takes care of that, and a zero | |
77 | pointer for a mark function means "don't bother". So you never | |
78 | need scm_mark0. | |
79 | ||
80 | However, we leave it here because it's harmless to call it, and | |
81 | people out there have smob code that uses it, and there's no reason | |
82 | to make their links fail. */ | |
83 | ||
84 | SCM | |
e81d98ec | 85 | scm_mark0 (SCM ptr SCM_UNUSED) |
9dd5943c MD |
86 | { |
87 | return SCM_BOOL_F; | |
88 | } | |
89 | ||
90 | SCM | |
22a52da1 DH |
91 | /* Dirk::FIXME: The name markcdr is misleading, since the term cdr should only |
92 | be used for real pairs. */ | |
6e8d25a6 | 93 | scm_markcdr (SCM ptr) |
9dd5943c | 94 | { |
22a52da1 | 95 | return SCM_CELL_OBJECT_1 (ptr); |
9dd5943c MD |
96 | } |
97 | ||
98 | /* {Free} | |
99 | */ | |
100 | ||
1be6b49c | 101 | size_t |
e81d98ec | 102 | scm_free0 (SCM ptr SCM_UNUSED) |
9dd5943c MD |
103 | { |
104 | return 0; | |
105 | } | |
106 | ||
1be6b49c | 107 | size_t |
9dd5943c MD |
108 | scm_smob_free (SCM obj) |
109 | { | |
4c9419ac MV |
110 | long n = SCM_SMOBNUM (obj); |
111 | if (scm_smobs[n].size > 0) | |
112 | scm_gc_free ((void *) SCM_CELL_WORD_1 (obj), | |
113 | scm_smobs[n].size, SCM_SMOBNAME (n)); | |
114 | return 0; | |
9dd5943c MD |
115 | } |
116 | ||
117 | /* {Print} | |
118 | */ | |
119 | ||
120 | int | |
e81d98ec | 121 | scm_smob_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
9dd5943c | 122 | { |
c014a02e | 123 | long n = SCM_SMOBNUM (exp); |
9dd5943c | 124 | scm_puts ("#<", port); |
2c16a78a | 125 | scm_puts (SCM_SMOBNAME (n) ? SCM_SMOBNAME (n) : "smob", port); |
9dd5943c | 126 | scm_putc (' ', port); |
7a7f7c53 DH |
127 | if (scm_smobs[n].size) |
128 | scm_intprint (SCM_CELL_WORD_1 (exp), 16, port); | |
129 | else | |
130 | scm_intprint (SCM_UNPACK (exp), 16, port); | |
9dd5943c MD |
131 | scm_putc ('>', port); |
132 | return 1; | |
133 | } | |
1cc91f1b | 134 | |
0717dfd8 KN |
135 | /* {Apply} |
136 | */ | |
137 | ||
cb1c46c5 KN |
138 | #define SCM_SMOB_APPLY0(SMOB) \ |
139 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB) | |
140 | #define SCM_SMOB_APPLY1(SMOB,A1) \ | |
141 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1) | |
142 | #define SCM_SMOB_APPLY2(SMOB,A1,A2) \ | |
143 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1, A2) | |
144 | #define SCM_SMOB_APPLY3(SMOB,A1,A2,A3) \ | |
145 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1, A2, A3) | |
146 | ||
cb1c46c5 KN |
147 | static SCM |
148 | scm_smob_apply_0_010 (SCM smob) | |
0717dfd8 | 149 | { |
cb1c46c5 | 150 | return SCM_SMOB_APPLY1 (smob, SCM_UNDEFINED); |
0717dfd8 KN |
151 | } |
152 | ||
cb1c46c5 KN |
153 | static SCM |
154 | scm_smob_apply_0_020 (SCM smob) | |
0717dfd8 | 155 | { |
cb1c46c5 | 156 | return SCM_SMOB_APPLY2 (smob, SCM_UNDEFINED, SCM_UNDEFINED); |
0717dfd8 KN |
157 | } |
158 | ||
cb1c46c5 KN |
159 | static SCM |
160 | scm_smob_apply_0_030 (SCM smob) | |
0717dfd8 | 161 | { |
cb1c46c5 | 162 | return SCM_SMOB_APPLY3 (smob, SCM_UNDEFINED, SCM_UNDEFINED, SCM_UNDEFINED); |
0717dfd8 KN |
163 | } |
164 | ||
cb1c46c5 KN |
165 | static SCM |
166 | scm_smob_apply_0_001 (SCM smob) | |
0717dfd8 | 167 | { |
cb1c46c5 KN |
168 | return SCM_SMOB_APPLY1 (smob, SCM_EOL); |
169 | } | |
170 | ||
171 | static SCM | |
172 | scm_smob_apply_0_011 (SCM smob) | |
173 | { | |
174 | return SCM_SMOB_APPLY2 (smob, SCM_UNDEFINED, SCM_EOL); | |
175 | } | |
176 | ||
177 | static SCM | |
178 | scm_smob_apply_0_021 (SCM smob) | |
179 | { | |
180 | return SCM_SMOB_APPLY3 (smob, SCM_UNDEFINED, SCM_UNDEFINED, SCM_EOL); | |
181 | } | |
182 | ||
183 | static SCM | |
184 | scm_smob_apply_0_error (SCM smob) | |
185 | { | |
186 | scm_wrong_num_args (smob); | |
187 | } | |
188 | ||
cb1c46c5 KN |
189 | static SCM |
190 | scm_smob_apply_1_020 (SCM smob, SCM a1) | |
191 | { | |
192 | return SCM_SMOB_APPLY2 (smob, a1, SCM_UNDEFINED); | |
193 | } | |
194 | ||
195 | static SCM | |
196 | scm_smob_apply_1_030 (SCM smob, SCM a1) | |
197 | { | |
198 | return SCM_SMOB_APPLY3 (smob, a1, SCM_UNDEFINED, SCM_UNDEFINED); | |
199 | } | |
200 | ||
201 | static SCM | |
202 | scm_smob_apply_1_001 (SCM smob, SCM a1) | |
203 | { | |
1afff620 | 204 | return SCM_SMOB_APPLY1 (smob, scm_list_1 (a1)); |
cb1c46c5 KN |
205 | } |
206 | ||
207 | static SCM | |
208 | scm_smob_apply_1_011 (SCM smob, SCM a1) | |
209 | { | |
210 | return SCM_SMOB_APPLY2 (smob, a1, SCM_EOL); | |
211 | } | |
212 | ||
213 | static SCM | |
214 | scm_smob_apply_1_021 (SCM smob, SCM a1) | |
215 | { | |
216 | return SCM_SMOB_APPLY3 (smob, a1, SCM_UNDEFINED, SCM_EOL); | |
217 | } | |
218 | ||
219 | static SCM | |
e81d98ec | 220 | scm_smob_apply_1_error (SCM smob, SCM a1 SCM_UNUSED) |
cb1c46c5 KN |
221 | { |
222 | scm_wrong_num_args (smob); | |
223 | } | |
224 | ||
cb1c46c5 KN |
225 | static SCM |
226 | scm_smob_apply_2_030 (SCM smob, SCM a1, SCM a2) | |
227 | { | |
228 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_UNDEFINED); | |
229 | } | |
230 | ||
231 | static SCM | |
232 | scm_smob_apply_2_001 (SCM smob, SCM a1, SCM a2) | |
233 | { | |
1afff620 | 234 | return SCM_SMOB_APPLY1 (smob, scm_list_2 (a1, a2)); |
7c58e21b | 235 | } |
cb1c46c5 KN |
236 | |
237 | static SCM | |
238 | scm_smob_apply_2_011 (SCM smob, SCM a1, SCM a2) | |
239 | { | |
1afff620 | 240 | return SCM_SMOB_APPLY2 (smob, a1, scm_list_1 (a2)); |
cb1c46c5 KN |
241 | } |
242 | ||
243 | static SCM | |
244 | scm_smob_apply_2_021 (SCM smob, SCM a1, SCM a2) | |
245 | { | |
246 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_EOL); | |
247 | } | |
248 | ||
249 | static SCM | |
e81d98ec | 250 | scm_smob_apply_2_error (SCM smob, SCM a1 SCM_UNUSED, SCM a2 SCM_UNUSED) |
cb1c46c5 KN |
251 | { |
252 | scm_wrong_num_args (smob); | |
253 | } | |
254 | ||
255 | static SCM | |
256 | scm_smob_apply_3_030 (SCM smob, SCM a1, SCM a2, SCM rst) | |
257 | { | |
258 | if (!SCM_NULLP (SCM_CDR (rst))) | |
259 | scm_wrong_num_args (smob); | |
260 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_CAR (rst)); | |
261 | } | |
262 | ||
263 | static SCM | |
264 | scm_smob_apply_3_001 (SCM smob, SCM a1, SCM a2, SCM rst) | |
265 | { | |
266 | return SCM_SMOB_APPLY1 (smob, scm_cons2 (a1, a2, rst)); | |
0717dfd8 KN |
267 | } |
268 | ||
cb1c46c5 KN |
269 | static SCM |
270 | scm_smob_apply_3_011 (SCM smob, SCM a1, SCM a2, SCM rst) | |
271 | { | |
272 | return SCM_SMOB_APPLY2 (smob, a1, scm_cons (a2, rst)); | |
273 | } | |
274 | ||
275 | static SCM | |
276 | scm_smob_apply_3_021 (SCM smob, SCM a1, SCM a2, SCM rst) | |
277 | { | |
278 | return SCM_SMOB_APPLY3 (smob, a1, a2, rst); | |
279 | } | |
280 | ||
281 | static SCM | |
e81d98ec DH |
282 | scm_smob_apply_3_error (SCM smob, |
283 | SCM a1 SCM_UNUSED, | |
284 | SCM a2 SCM_UNUSED, | |
285 | SCM rst SCM_UNUSED) | |
cb1c46c5 KN |
286 | { |
287 | scm_wrong_num_args (smob); | |
288 | } | |
289 | ||
290 | \f | |
7a7f7c53 | 291 | |
92c2555f | 292 | scm_t_bits |
1be6b49c | 293 | scm_make_smob_type (char *name, size_t size) |
7a7f7c53 | 294 | #define FUNC_NAME "scm_make_smob_type" |
0f2d19dd | 295 | { |
c014a02e | 296 | long new_smob; |
7a7f7c53 DH |
297 | |
298 | SCM_ENTER_A_SECTION; /* scm_numsmob */ | |
299 | new_smob = scm_numsmob; | |
300 | if (scm_numsmob != MAX_SMOB_COUNT) | |
301 | ++scm_numsmob; | |
302 | SCM_EXIT_A_SECTION; | |
303 | ||
304 | if (new_smob == MAX_SMOB_COUNT) | |
305 | scm_misc_error (FUNC_NAME, "maximum number of smobs exceeded", SCM_EOL); | |
306 | ||
307 | scm_smobs[new_smob].name = name; | |
308 | if (size != 0) | |
2500356c | 309 | { |
7a7f7c53 DH |
310 | scm_smobs[new_smob].size = size; |
311 | scm_smobs[new_smob].free = scm_smob_free; | |
2500356c | 312 | } |
7a7f7c53 | 313 | |
d7ec6b9f MD |
314 | /* Make a class object if Goops is present. */ |
315 | if (scm_smob_class) | |
7a7f7c53 DH |
316 | scm_smob_class[new_smob] = scm_make_extended_class (name); |
317 | ||
318 | return scm_tc7_smob + new_smob * 256; | |
0f2d19dd | 319 | } |
7a7f7c53 DH |
320 | #undef FUNC_NAME |
321 | ||
0f2d19dd | 322 | |
9dd5943c | 323 | void |
92c2555f | 324 | scm_set_smob_mark (scm_t_bits tc, SCM (*mark) (SCM)) |
9dd5943c MD |
325 | { |
326 | scm_smobs[SCM_TC2SMOBNUM (tc)].mark = mark; | |
327 | } | |
328 | ||
329 | void | |
92c2555f | 330 | scm_set_smob_free (scm_t_bits tc, size_t (*free) (SCM)) |
9dd5943c MD |
331 | { |
332 | scm_smobs[SCM_TC2SMOBNUM (tc)].free = free; | |
333 | } | |
334 | ||
335 | void | |
92c2555f | 336 | scm_set_smob_print (scm_t_bits tc, int (*print) (SCM, SCM, scm_print_state*)) |
9dd5943c MD |
337 | { |
338 | scm_smobs[SCM_TC2SMOBNUM (tc)].print = print; | |
339 | } | |
340 | ||
341 | void | |
92c2555f | 342 | scm_set_smob_equalp (scm_t_bits tc, SCM (*equalp) (SCM, SCM)) |
9dd5943c MD |
343 | { |
344 | scm_smobs[SCM_TC2SMOBNUM (tc)].equalp = equalp; | |
345 | } | |
346 | ||
0717dfd8 | 347 | void |
92c2555f | 348 | scm_set_smob_apply (scm_t_bits tc, SCM (*apply) (), |
7c58e21b | 349 | unsigned int req, unsigned int opt, unsigned int rst) |
0717dfd8 | 350 | { |
cb1c46c5 KN |
351 | SCM (*apply_0) (SCM); |
352 | SCM (*apply_1) (SCM, SCM); | |
353 | SCM (*apply_2) (SCM, SCM, SCM); | |
354 | SCM (*apply_3) (SCM, SCM, SCM, SCM); | |
355 | int type = SCM_GSUBR_MAKTYPE (req, opt, rst); | |
356 | ||
7c58e21b | 357 | if (rst > 1 || req + opt + rst > 3) |
cb1c46c5 KN |
358 | { |
359 | puts ("Unsupported smob application type"); | |
360 | abort (); | |
361 | } | |
362 | ||
363 | switch (type) | |
364 | { | |
365 | case SCM_GSUBR_MAKTYPE (0, 0, 0): | |
7c58e21b | 366 | apply_0 = apply; break; |
cb1c46c5 KN |
367 | case SCM_GSUBR_MAKTYPE (0, 1, 0): |
368 | apply_0 = scm_smob_apply_0_010; break; | |
369 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
370 | apply_0 = scm_smob_apply_0_020; break; | |
371 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
372 | apply_0 = scm_smob_apply_0_030; break; | |
373 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
374 | apply_0 = scm_smob_apply_0_001; break; | |
375 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
376 | apply_0 = scm_smob_apply_0_011; break; | |
377 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
378 | apply_0 = scm_smob_apply_0_021; break; | |
379 | default: | |
380 | apply_0 = scm_smob_apply_0_error; break; | |
381 | } | |
382 | ||
383 | switch (type) | |
384 | { | |
385 | case SCM_GSUBR_MAKTYPE (1, 0, 0): | |
386 | case SCM_GSUBR_MAKTYPE (0, 1, 0): | |
7c58e21b | 387 | apply_1 = apply; break; |
cb1c46c5 KN |
388 | case SCM_GSUBR_MAKTYPE (1, 1, 0): |
389 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
390 | apply_1 = scm_smob_apply_1_020; break; | |
391 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
392 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
393 | apply_1 = scm_smob_apply_1_030; break; | |
394 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
395 | apply_1 = scm_smob_apply_1_001; break; | |
396 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
397 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
398 | apply_1 = scm_smob_apply_1_011; break; | |
399 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
400 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
401 | apply_1 = scm_smob_apply_1_021; break; | |
402 | default: | |
403 | apply_1 = scm_smob_apply_1_error; break; | |
404 | } | |
405 | ||
406 | switch (type) | |
407 | { | |
408 | case SCM_GSUBR_MAKTYPE (2, 0, 0): | |
409 | case SCM_GSUBR_MAKTYPE (1, 1, 0): | |
410 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
7c58e21b | 411 | apply_2 = apply; break; |
cb1c46c5 KN |
412 | case SCM_GSUBR_MAKTYPE (2, 1, 0): |
413 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
414 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
415 | apply_2 = scm_smob_apply_2_030; break; | |
416 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
417 | apply_2 = scm_smob_apply_2_001; break; | |
418 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
419 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
420 | apply_2 = scm_smob_apply_2_011; break; | |
421 | case SCM_GSUBR_MAKTYPE (2, 0, 1): | |
422 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
423 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
424 | apply_2 = scm_smob_apply_2_021; break; | |
425 | default: | |
426 | apply_2 = scm_smob_apply_2_error; break; | |
427 | } | |
428 | ||
429 | switch (type) | |
430 | { | |
431 | case SCM_GSUBR_MAKTYPE (3, 0, 0): | |
432 | case SCM_GSUBR_MAKTYPE (2, 1, 0): | |
433 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
434 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
435 | apply_3 = scm_smob_apply_3_030; break; | |
436 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
437 | apply_3 = scm_smob_apply_3_001; break; | |
438 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
439 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
440 | apply_3 = scm_smob_apply_3_011; break; | |
441 | case SCM_GSUBR_MAKTYPE (2, 0, 1): | |
442 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
443 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
444 | apply_3 = scm_smob_apply_3_021; break; | |
445 | default: | |
446 | apply_3 = scm_smob_apply_3_error; break; | |
447 | } | |
448 | ||
03416a99 | 449 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply = apply; |
cb1c46c5 KN |
450 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_0 = apply_0; |
451 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_1 = apply_1; | |
452 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_2 = apply_2; | |
453 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_3 = apply_3; | |
68b06924 | 454 | scm_smobs[SCM_TC2SMOBNUM (tc)].gsubr_type = type; |
0717dfd8 KN |
455 | } |
456 | ||
9dd5943c | 457 | SCM |
92c2555f | 458 | scm_make_smob (scm_t_bits tc) |
9dd5943c | 459 | { |
c014a02e | 460 | long n = SCM_TC2SMOBNUM (tc); |
1be6b49c | 461 | size_t size = scm_smobs[n].size; |
16d4699b | 462 | scm_t_bits data = (size > 0 |
4c9419ac | 463 | ? (scm_t_bits) scm_gc_malloc (size, SCM_SMOBNAME (n)) |
16d4699b MV |
464 | : 0); |
465 | return scm_alloc_cell (tc, data); | |
9dd5943c MD |
466 | } |
467 | ||
ceef3208 | 468 | \f |
0f2d19dd JB |
469 | /* {Initialization for i/o types, float, bignum, the type of free cells} |
470 | */ | |
471 | ||
ceef3208 | 472 | static int |
e81d98ec | 473 | free_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
ceef3208 JB |
474 | { |
475 | char buf[100]; | |
476 | ||
e841c3e0 KN |
477 | sprintf (buf, "#<freed cell %p; GC missed a reference>", |
478 | (void *) SCM_UNPACK (exp)); | |
ceef3208 JB |
479 | scm_puts (buf, port); |
480 | ||
481 | return 1; | |
482 | } | |
483 | ||
0f2d19dd JB |
484 | void |
485 | scm_smob_prehistory () | |
0f2d19dd | 486 | { |
c014a02e | 487 | long i; |
92c2555f | 488 | scm_t_bits tc; |
e841c3e0 | 489 | |
0f2d19dd | 490 | scm_numsmob = 0; |
7a7f7c53 DH |
491 | for (i = 0; i < MAX_SMOB_COUNT; ++i) |
492 | { | |
493 | scm_smobs[i].name = 0; | |
494 | scm_smobs[i].size = 0; | |
495 | scm_smobs[i].mark = 0; | |
496 | scm_smobs[i].free = 0; | |
497 | scm_smobs[i].print = scm_smob_print; | |
498 | scm_smobs[i].equalp = 0; | |
499 | scm_smobs[i].apply = 0; | |
500 | scm_smobs[i].apply_0 = 0; | |
501 | scm_smobs[i].apply_1 = 0; | |
502 | scm_smobs[i].apply_2 = 0; | |
503 | scm_smobs[i].apply_3 = 0; | |
504 | scm_smobs[i].gsubr_type = 0; | |
505 | } | |
9dd5943c MD |
506 | |
507 | /* WARNING: These scm_make_smob_type calls must be done in this order */ | |
e841c3e0 KN |
508 | tc = scm_make_smob_type ("free", 0); |
509 | scm_set_smob_print (tc, free_print); | |
23a62151 | 510 | |
7a7f7c53 | 511 | tc = scm_make_smob_type ("big", 0); /* freed in gc */ |
e841c3e0 KN |
512 | scm_set_smob_print (tc, scm_bigprint); |
513 | scm_set_smob_equalp (tc, scm_bigequal); | |
23a62151 | 514 | |
e841c3e0 KN |
515 | tc = scm_make_smob_type ("real", 0); /* freed in gc */ |
516 | scm_set_smob_print (tc, scm_print_real); | |
517 | scm_set_smob_equalp (tc, scm_real_equalp); | |
16d35552 | 518 | |
7a7f7c53 | 519 | tc = scm_make_smob_type ("complex", 0); /* freed in gc */ |
e841c3e0 KN |
520 | scm_set_smob_print (tc, scm_print_complex); |
521 | scm_set_smob_equalp (tc, scm_complex_equalp); | |
0f2d19dd | 522 | } |
89e00824 ML |
523 | |
524 | /* | |
525 | Local Variables: | |
526 | c-file-style: "gnu" | |
527 | End: | |
528 | */ |