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74b6d6e4 | 1 | /* Copyright (C) 1995,1996,1998,1999,2000,2001, 2003 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 | 43 | \f |
f9fe039d RB |
44 | #if HAVE_CONFIG_H |
45 | # include <config.h> | |
46 | #endif | |
0f2d19dd JB |
47 | |
48 | #include <stdio.h> | |
e6e2e95a MD |
49 | #include <errno.h> |
50 | ||
a0599745 | 51 | #include "libguile/_scm.h" |
20e6290e | 52 | |
a0599745 MD |
53 | #include "libguile/objects.h" |
54 | #include "libguile/ports.h" | |
d7ec6b9f | 55 | |
0f2d19dd JB |
56 | #ifdef HAVE_MALLOC_H |
57 | #include <malloc.h> | |
58 | #endif | |
59 | ||
a0599745 | 60 | #include "libguile/smob.h" |
9dd5943c | 61 | |
0f2d19dd JB |
62 | \f |
63 | ||
64 | /* scm_smobs scm_numsmob | |
7a7f7c53 | 65 | * implement a fixed sized array of smob records. |
0f2d19dd JB |
66 | * Indexes into this table are used when generating type |
67 | * tags for smobjects (if you know a tag you can get an index and conversely). | |
68 | */ | |
7a7f7c53 DH |
69 | |
70 | #define MAX_SMOB_COUNT 256 | |
c014a02e | 71 | long scm_numsmob; |
7a7f7c53 | 72 | scm_smob_descriptor scm_smobs[MAX_SMOB_COUNT]; |
0f2d19dd | 73 | |
9dd5943c MD |
74 | /* {Mark} |
75 | */ | |
76 | ||
77 | /* This function is vestigial. It used to be the mark function's | |
78 | responsibility to set the mark bit on the smob or port, but now the | |
79 | generic marking routine in gc.c takes care of that, and a zero | |
80 | pointer for a mark function means "don't bother". So you never | |
81 | need scm_mark0. | |
82 | ||
83 | However, we leave it here because it's harmless to call it, and | |
84 | people out there have smob code that uses it, and there's no reason | |
85 | to make their links fail. */ | |
86 | ||
87 | SCM | |
e81d98ec | 88 | scm_mark0 (SCM ptr SCM_UNUSED) |
9dd5943c MD |
89 | { |
90 | return SCM_BOOL_F; | |
91 | } | |
92 | ||
93 | SCM | |
22a52da1 DH |
94 | /* Dirk::FIXME: The name markcdr is misleading, since the term cdr should only |
95 | be used for real pairs. */ | |
6e8d25a6 | 96 | scm_markcdr (SCM ptr) |
9dd5943c | 97 | { |
22a52da1 | 98 | return SCM_CELL_OBJECT_1 (ptr); |
9dd5943c MD |
99 | } |
100 | ||
101 | /* {Free} | |
102 | */ | |
103 | ||
1be6b49c | 104 | size_t |
e81d98ec | 105 | scm_free0 (SCM ptr SCM_UNUSED) |
9dd5943c MD |
106 | { |
107 | return 0; | |
108 | } | |
109 | ||
1be6b49c | 110 | size_t |
9dd5943c MD |
111 | scm_smob_free (SCM obj) |
112 | { | |
4c9419ac MV |
113 | long n = SCM_SMOBNUM (obj); |
114 | if (scm_smobs[n].size > 0) | |
115 | scm_gc_free ((void *) SCM_CELL_WORD_1 (obj), | |
116 | scm_smobs[n].size, SCM_SMOBNAME (n)); | |
117 | return 0; | |
9dd5943c MD |
118 | } |
119 | ||
120 | /* {Print} | |
121 | */ | |
122 | ||
123 | int | |
e81d98ec | 124 | scm_smob_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
9dd5943c | 125 | { |
c014a02e | 126 | long n = SCM_SMOBNUM (exp); |
9dd5943c | 127 | scm_puts ("#<", port); |
2c16a78a | 128 | scm_puts (SCM_SMOBNAME (n) ? SCM_SMOBNAME (n) : "smob", port); |
9dd5943c | 129 | scm_putc (' ', port); |
7a7f7c53 DH |
130 | if (scm_smobs[n].size) |
131 | scm_intprint (SCM_CELL_WORD_1 (exp), 16, port); | |
132 | else | |
133 | scm_intprint (SCM_UNPACK (exp), 16, port); | |
9dd5943c MD |
134 | scm_putc ('>', port); |
135 | return 1; | |
136 | } | |
1cc91f1b | 137 | |
0717dfd8 KN |
138 | /* {Apply} |
139 | */ | |
140 | ||
cb1c46c5 KN |
141 | #define SCM_SMOB_APPLY0(SMOB) \ |
142 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB) | |
34d19ef6 | 143 | #define SCM_SMOB_APPLY1(SMOB, A1) \ |
cb1c46c5 | 144 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1) |
34d19ef6 | 145 | #define SCM_SMOB_APPLY2(SMOB, A1, A2) \ |
cb1c46c5 | 146 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1, A2) |
34d19ef6 | 147 | #define SCM_SMOB_APPLY3(SMOB, A1, A2, A3) \ |
cb1c46c5 KN |
148 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1, A2, A3) |
149 | ||
cb1c46c5 KN |
150 | static SCM |
151 | scm_smob_apply_0_010 (SCM smob) | |
0717dfd8 | 152 | { |
cb1c46c5 | 153 | return SCM_SMOB_APPLY1 (smob, SCM_UNDEFINED); |
0717dfd8 KN |
154 | } |
155 | ||
cb1c46c5 KN |
156 | static SCM |
157 | scm_smob_apply_0_020 (SCM smob) | |
0717dfd8 | 158 | { |
cb1c46c5 | 159 | return SCM_SMOB_APPLY2 (smob, SCM_UNDEFINED, SCM_UNDEFINED); |
0717dfd8 KN |
160 | } |
161 | ||
cb1c46c5 KN |
162 | static SCM |
163 | scm_smob_apply_0_030 (SCM smob) | |
0717dfd8 | 164 | { |
cb1c46c5 | 165 | return SCM_SMOB_APPLY3 (smob, SCM_UNDEFINED, SCM_UNDEFINED, SCM_UNDEFINED); |
0717dfd8 KN |
166 | } |
167 | ||
cb1c46c5 KN |
168 | static SCM |
169 | scm_smob_apply_0_001 (SCM smob) | |
0717dfd8 | 170 | { |
cb1c46c5 KN |
171 | return SCM_SMOB_APPLY1 (smob, SCM_EOL); |
172 | } | |
173 | ||
174 | static SCM | |
175 | scm_smob_apply_0_011 (SCM smob) | |
176 | { | |
177 | return SCM_SMOB_APPLY2 (smob, SCM_UNDEFINED, SCM_EOL); | |
178 | } | |
179 | ||
180 | static SCM | |
181 | scm_smob_apply_0_021 (SCM smob) | |
182 | { | |
183 | return SCM_SMOB_APPLY3 (smob, SCM_UNDEFINED, SCM_UNDEFINED, SCM_EOL); | |
184 | } | |
185 | ||
186 | static SCM | |
187 | scm_smob_apply_0_error (SCM smob) | |
188 | { | |
189 | scm_wrong_num_args (smob); | |
190 | } | |
191 | ||
cb1c46c5 KN |
192 | static SCM |
193 | scm_smob_apply_1_020 (SCM smob, SCM a1) | |
194 | { | |
195 | return SCM_SMOB_APPLY2 (smob, a1, SCM_UNDEFINED); | |
196 | } | |
197 | ||
198 | static SCM | |
199 | scm_smob_apply_1_030 (SCM smob, SCM a1) | |
200 | { | |
201 | return SCM_SMOB_APPLY3 (smob, a1, SCM_UNDEFINED, SCM_UNDEFINED); | |
202 | } | |
203 | ||
204 | static SCM | |
205 | scm_smob_apply_1_001 (SCM smob, SCM a1) | |
206 | { | |
1afff620 | 207 | return SCM_SMOB_APPLY1 (smob, scm_list_1 (a1)); |
cb1c46c5 KN |
208 | } |
209 | ||
210 | static SCM | |
211 | scm_smob_apply_1_011 (SCM smob, SCM a1) | |
212 | { | |
213 | return SCM_SMOB_APPLY2 (smob, a1, SCM_EOL); | |
214 | } | |
215 | ||
216 | static SCM | |
217 | scm_smob_apply_1_021 (SCM smob, SCM a1) | |
218 | { | |
219 | return SCM_SMOB_APPLY3 (smob, a1, SCM_UNDEFINED, SCM_EOL); | |
220 | } | |
221 | ||
222 | static SCM | |
e81d98ec | 223 | scm_smob_apply_1_error (SCM smob, SCM a1 SCM_UNUSED) |
cb1c46c5 KN |
224 | { |
225 | scm_wrong_num_args (smob); | |
226 | } | |
227 | ||
cb1c46c5 KN |
228 | static SCM |
229 | scm_smob_apply_2_030 (SCM smob, SCM a1, SCM a2) | |
230 | { | |
231 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_UNDEFINED); | |
232 | } | |
233 | ||
234 | static SCM | |
235 | scm_smob_apply_2_001 (SCM smob, SCM a1, SCM a2) | |
236 | { | |
1afff620 | 237 | return SCM_SMOB_APPLY1 (smob, scm_list_2 (a1, a2)); |
7c58e21b | 238 | } |
cb1c46c5 KN |
239 | |
240 | static SCM | |
241 | scm_smob_apply_2_011 (SCM smob, SCM a1, SCM a2) | |
242 | { | |
1afff620 | 243 | return SCM_SMOB_APPLY2 (smob, a1, scm_list_1 (a2)); |
cb1c46c5 KN |
244 | } |
245 | ||
246 | static SCM | |
247 | scm_smob_apply_2_021 (SCM smob, SCM a1, SCM a2) | |
248 | { | |
249 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_EOL); | |
250 | } | |
251 | ||
252 | static SCM | |
e81d98ec | 253 | scm_smob_apply_2_error (SCM smob, SCM a1 SCM_UNUSED, SCM a2 SCM_UNUSED) |
cb1c46c5 KN |
254 | { |
255 | scm_wrong_num_args (smob); | |
256 | } | |
257 | ||
258 | static SCM | |
259 | scm_smob_apply_3_030 (SCM smob, SCM a1, SCM a2, SCM rst) | |
260 | { | |
261 | if (!SCM_NULLP (SCM_CDR (rst))) | |
262 | scm_wrong_num_args (smob); | |
263 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_CAR (rst)); | |
264 | } | |
265 | ||
266 | static SCM | |
267 | scm_smob_apply_3_001 (SCM smob, SCM a1, SCM a2, SCM rst) | |
268 | { | |
269 | return SCM_SMOB_APPLY1 (smob, scm_cons2 (a1, a2, rst)); | |
0717dfd8 KN |
270 | } |
271 | ||
cb1c46c5 KN |
272 | static SCM |
273 | scm_smob_apply_3_011 (SCM smob, SCM a1, SCM a2, SCM rst) | |
274 | { | |
275 | return SCM_SMOB_APPLY2 (smob, a1, scm_cons (a2, rst)); | |
276 | } | |
277 | ||
278 | static SCM | |
279 | scm_smob_apply_3_021 (SCM smob, SCM a1, SCM a2, SCM rst) | |
280 | { | |
281 | return SCM_SMOB_APPLY3 (smob, a1, a2, rst); | |
282 | } | |
283 | ||
284 | static SCM | |
e81d98ec DH |
285 | scm_smob_apply_3_error (SCM smob, |
286 | SCM a1 SCM_UNUSED, | |
287 | SCM a2 SCM_UNUSED, | |
288 | SCM rst SCM_UNUSED) | |
cb1c46c5 KN |
289 | { |
290 | scm_wrong_num_args (smob); | |
291 | } | |
292 | ||
293 | \f | |
7a7f7c53 | 294 | |
92c2555f | 295 | scm_t_bits |
1be6b49c | 296 | scm_make_smob_type (char *name, size_t size) |
7a7f7c53 | 297 | #define FUNC_NAME "scm_make_smob_type" |
0f2d19dd | 298 | { |
c014a02e | 299 | long new_smob; |
7a7f7c53 DH |
300 | |
301 | SCM_ENTER_A_SECTION; /* scm_numsmob */ | |
302 | new_smob = scm_numsmob; | |
303 | if (scm_numsmob != MAX_SMOB_COUNT) | |
304 | ++scm_numsmob; | |
305 | SCM_EXIT_A_SECTION; | |
306 | ||
307 | if (new_smob == MAX_SMOB_COUNT) | |
308 | scm_misc_error (FUNC_NAME, "maximum number of smobs exceeded", SCM_EOL); | |
309 | ||
310 | scm_smobs[new_smob].name = name; | |
311 | if (size != 0) | |
2500356c | 312 | { |
7a7f7c53 DH |
313 | scm_smobs[new_smob].size = size; |
314 | scm_smobs[new_smob].free = scm_smob_free; | |
2500356c | 315 | } |
7a7f7c53 | 316 | |
d7ec6b9f MD |
317 | /* Make a class object if Goops is present. */ |
318 | if (scm_smob_class) | |
74b6d6e4 | 319 | scm_smob_class[new_smob] = scm_make_extended_class (name, 0); |
7a7f7c53 DH |
320 | |
321 | return scm_tc7_smob + new_smob * 256; | |
0f2d19dd | 322 | } |
7a7f7c53 DH |
323 | #undef FUNC_NAME |
324 | ||
0f2d19dd | 325 | |
9dd5943c | 326 | void |
92c2555f | 327 | scm_set_smob_mark (scm_t_bits tc, SCM (*mark) (SCM)) |
9dd5943c MD |
328 | { |
329 | scm_smobs[SCM_TC2SMOBNUM (tc)].mark = mark; | |
330 | } | |
331 | ||
332 | void | |
92c2555f | 333 | scm_set_smob_free (scm_t_bits tc, size_t (*free) (SCM)) |
9dd5943c MD |
334 | { |
335 | scm_smobs[SCM_TC2SMOBNUM (tc)].free = free; | |
336 | } | |
337 | ||
338 | void | |
92c2555f | 339 | scm_set_smob_print (scm_t_bits tc, int (*print) (SCM, SCM, scm_print_state*)) |
9dd5943c MD |
340 | { |
341 | scm_smobs[SCM_TC2SMOBNUM (tc)].print = print; | |
342 | } | |
343 | ||
344 | void | |
92c2555f | 345 | scm_set_smob_equalp (scm_t_bits tc, SCM (*equalp) (SCM, SCM)) |
9dd5943c MD |
346 | { |
347 | scm_smobs[SCM_TC2SMOBNUM (tc)].equalp = equalp; | |
348 | } | |
349 | ||
0717dfd8 | 350 | void |
92c2555f | 351 | scm_set_smob_apply (scm_t_bits tc, SCM (*apply) (), |
7c58e21b | 352 | unsigned int req, unsigned int opt, unsigned int rst) |
0717dfd8 | 353 | { |
cb1c46c5 KN |
354 | SCM (*apply_0) (SCM); |
355 | SCM (*apply_1) (SCM, SCM); | |
356 | SCM (*apply_2) (SCM, SCM, SCM); | |
357 | SCM (*apply_3) (SCM, SCM, SCM, SCM); | |
358 | int type = SCM_GSUBR_MAKTYPE (req, opt, rst); | |
359 | ||
7c58e21b | 360 | if (rst > 1 || req + opt + rst > 3) |
cb1c46c5 KN |
361 | { |
362 | puts ("Unsupported smob application type"); | |
363 | abort (); | |
364 | } | |
365 | ||
366 | switch (type) | |
367 | { | |
368 | case SCM_GSUBR_MAKTYPE (0, 0, 0): | |
7c58e21b | 369 | apply_0 = apply; break; |
cb1c46c5 KN |
370 | case SCM_GSUBR_MAKTYPE (0, 1, 0): |
371 | apply_0 = scm_smob_apply_0_010; break; | |
372 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
373 | apply_0 = scm_smob_apply_0_020; break; | |
374 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
375 | apply_0 = scm_smob_apply_0_030; break; | |
376 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
377 | apply_0 = scm_smob_apply_0_001; break; | |
378 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
379 | apply_0 = scm_smob_apply_0_011; break; | |
380 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
381 | apply_0 = scm_smob_apply_0_021; break; | |
382 | default: | |
383 | apply_0 = scm_smob_apply_0_error; break; | |
384 | } | |
385 | ||
386 | switch (type) | |
387 | { | |
388 | case SCM_GSUBR_MAKTYPE (1, 0, 0): | |
389 | case SCM_GSUBR_MAKTYPE (0, 1, 0): | |
7c58e21b | 390 | apply_1 = apply; break; |
cb1c46c5 KN |
391 | case SCM_GSUBR_MAKTYPE (1, 1, 0): |
392 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
393 | apply_1 = scm_smob_apply_1_020; break; | |
394 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
395 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
396 | apply_1 = scm_smob_apply_1_030; break; | |
397 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
398 | apply_1 = scm_smob_apply_1_001; break; | |
399 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
400 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
401 | apply_1 = scm_smob_apply_1_011; break; | |
402 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
403 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
404 | apply_1 = scm_smob_apply_1_021; break; | |
405 | default: | |
406 | apply_1 = scm_smob_apply_1_error; break; | |
407 | } | |
408 | ||
409 | switch (type) | |
410 | { | |
411 | case SCM_GSUBR_MAKTYPE (2, 0, 0): | |
412 | case SCM_GSUBR_MAKTYPE (1, 1, 0): | |
413 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
7c58e21b | 414 | apply_2 = apply; break; |
cb1c46c5 KN |
415 | case SCM_GSUBR_MAKTYPE (2, 1, 0): |
416 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
417 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
418 | apply_2 = scm_smob_apply_2_030; break; | |
419 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
420 | apply_2 = scm_smob_apply_2_001; break; | |
421 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
422 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
423 | apply_2 = scm_smob_apply_2_011; break; | |
424 | case SCM_GSUBR_MAKTYPE (2, 0, 1): | |
425 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
426 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
427 | apply_2 = scm_smob_apply_2_021; break; | |
428 | default: | |
429 | apply_2 = scm_smob_apply_2_error; break; | |
430 | } | |
431 | ||
432 | switch (type) | |
433 | { | |
434 | case SCM_GSUBR_MAKTYPE (3, 0, 0): | |
435 | case SCM_GSUBR_MAKTYPE (2, 1, 0): | |
436 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
437 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
438 | apply_3 = scm_smob_apply_3_030; break; | |
439 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
440 | apply_3 = scm_smob_apply_3_001; break; | |
441 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
442 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
443 | apply_3 = scm_smob_apply_3_011; break; | |
444 | case SCM_GSUBR_MAKTYPE (2, 0, 1): | |
445 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
446 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
447 | apply_3 = scm_smob_apply_3_021; break; | |
448 | default: | |
449 | apply_3 = scm_smob_apply_3_error; break; | |
450 | } | |
451 | ||
03416a99 | 452 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply = apply; |
cb1c46c5 KN |
453 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_0 = apply_0; |
454 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_1 = apply_1; | |
455 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_2 = apply_2; | |
456 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_3 = apply_3; | |
68b06924 | 457 | scm_smobs[SCM_TC2SMOBNUM (tc)].gsubr_type = type; |
74b6d6e4 MD |
458 | |
459 | if (scm_smob_class) | |
460 | scm_i_inherit_applicable (scm_smob_class[SCM_TC2SMOBNUM (tc)]); | |
0717dfd8 KN |
461 | } |
462 | ||
9dd5943c | 463 | SCM |
92c2555f | 464 | scm_make_smob (scm_t_bits tc) |
9dd5943c | 465 | { |
c014a02e | 466 | long n = SCM_TC2SMOBNUM (tc); |
1be6b49c | 467 | size_t size = scm_smobs[n].size; |
16d4699b | 468 | scm_t_bits data = (size > 0 |
4c9419ac | 469 | ? (scm_t_bits) scm_gc_malloc (size, SCM_SMOBNAME (n)) |
16d4699b | 470 | : 0); |
228a24ef | 471 | return scm_cell (tc, data); |
9dd5943c MD |
472 | } |
473 | ||
ceef3208 | 474 | \f |
0f2d19dd JB |
475 | /* {Initialization for i/o types, float, bignum, the type of free cells} |
476 | */ | |
477 | ||
ceef3208 | 478 | static int |
e81d98ec | 479 | free_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
ceef3208 JB |
480 | { |
481 | char buf[100]; | |
e841c3e0 KN |
482 | sprintf (buf, "#<freed cell %p; GC missed a reference>", |
483 | (void *) SCM_UNPACK (exp)); | |
ceef3208 | 484 | scm_puts (buf, port); |
1e71eafb HWN |
485 | |
486 | #if (SCM_DEBUG_CELL_ACCESSES == 1) | |
487 | if (scm_debug_cell_accesses_p) | |
488 | abort(); | |
489 | #endif | |
490 | ||
ceef3208 JB |
491 | |
492 | return 1; | |
493 | } | |
494 | ||
0f2d19dd JB |
495 | void |
496 | scm_smob_prehistory () | |
0f2d19dd | 497 | { |
c014a02e | 498 | long i; |
92c2555f | 499 | scm_t_bits tc; |
e841c3e0 | 500 | |
0f2d19dd | 501 | scm_numsmob = 0; |
7a7f7c53 DH |
502 | for (i = 0; i < MAX_SMOB_COUNT; ++i) |
503 | { | |
504 | scm_smobs[i].name = 0; | |
505 | scm_smobs[i].size = 0; | |
506 | scm_smobs[i].mark = 0; | |
507 | scm_smobs[i].free = 0; | |
508 | scm_smobs[i].print = scm_smob_print; | |
509 | scm_smobs[i].equalp = 0; | |
510 | scm_smobs[i].apply = 0; | |
511 | scm_smobs[i].apply_0 = 0; | |
512 | scm_smobs[i].apply_1 = 0; | |
513 | scm_smobs[i].apply_2 = 0; | |
514 | scm_smobs[i].apply_3 = 0; | |
515 | scm_smobs[i].gsubr_type = 0; | |
516 | } | |
9dd5943c MD |
517 | |
518 | /* WARNING: These scm_make_smob_type calls must be done in this order */ | |
e841c3e0 KN |
519 | tc = scm_make_smob_type ("free", 0); |
520 | scm_set_smob_print (tc, free_print); | |
23a62151 | 521 | |
7a7f7c53 | 522 | tc = scm_make_smob_type ("big", 0); /* freed in gc */ |
e841c3e0 KN |
523 | scm_set_smob_print (tc, scm_bigprint); |
524 | scm_set_smob_equalp (tc, scm_bigequal); | |
23a62151 | 525 | |
e841c3e0 KN |
526 | tc = scm_make_smob_type ("real", 0); /* freed in gc */ |
527 | scm_set_smob_print (tc, scm_print_real); | |
528 | scm_set_smob_equalp (tc, scm_real_equalp); | |
16d35552 | 529 | |
7a7f7c53 | 530 | tc = scm_make_smob_type ("complex", 0); /* freed in gc */ |
e841c3e0 KN |
531 | scm_set_smob_print (tc, scm_print_complex); |
532 | scm_set_smob_equalp (tc, scm_complex_equalp); | |
0f2d19dd | 533 | } |
89e00824 ML |
534 | |
535 | /* | |
536 | Local Variables: | |
537 | c-file-style: "gnu" | |
538 | End: | |
539 | */ |