Commit | Line | Data |
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2b829bbb | 1 | /* Copyright (C) 1995,1996,1998,1999,2000,2001, 2003, 2004, 2006 Free Software Foundation, Inc. |
0f2d19dd | 2 | * |
73be1d9e MV |
3 | * This library is free software; you can redistribute it and/or |
4 | * modify it under the terms of the GNU Lesser General Public | |
5 | * License as published by the Free Software Foundation; either | |
6 | * version 2.1 of the License, or (at your option) any later version. | |
0f2d19dd | 7 | * |
73be1d9e MV |
8 | * This library 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 GNU | |
11 | * Lesser General Public License for more details. | |
0f2d19dd | 12 | * |
73be1d9e MV |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
92205699 | 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
73be1d9e | 16 | */ |
1bbd0b84 | 17 | |
1bbd0b84 | 18 | |
0f2d19dd | 19 | \f |
f9fe039d RB |
20 | #if HAVE_CONFIG_H |
21 | # include <config.h> | |
22 | #endif | |
0f2d19dd JB |
23 | |
24 | #include <stdio.h> | |
e6e2e95a MD |
25 | #include <errno.h> |
26 | ||
a0599745 | 27 | #include "libguile/_scm.h" |
20e6290e | 28 | |
4e047c3e | 29 | #include "libguile/async.h" |
a0599745 | 30 | #include "libguile/objects.h" |
9511876f | 31 | #include "libguile/goops.h" |
a0599745 | 32 | #include "libguile/ports.h" |
d7ec6b9f | 33 | |
0f2d19dd JB |
34 | #ifdef HAVE_MALLOC_H |
35 | #include <malloc.h> | |
36 | #endif | |
37 | ||
a0599745 | 38 | #include "libguile/smob.h" |
9dd5943c | 39 | |
0f2d19dd JB |
40 | \f |
41 | ||
42 | /* scm_smobs scm_numsmob | |
7a7f7c53 | 43 | * implement a fixed sized array of smob records. |
0f2d19dd JB |
44 | * Indexes into this table are used when generating type |
45 | * tags for smobjects (if you know a tag you can get an index and conversely). | |
46 | */ | |
7a7f7c53 DH |
47 | |
48 | #define MAX_SMOB_COUNT 256 | |
c014a02e | 49 | long scm_numsmob; |
7a7f7c53 | 50 | scm_smob_descriptor scm_smobs[MAX_SMOB_COUNT]; |
0f2d19dd | 51 | |
37fc18ae MV |
52 | /* Lower 16 bit of data must be zero. |
53 | */ | |
54 | void | |
55 | scm_i_set_smob_flags (SCM x, scm_t_bits data) | |
56 | { | |
57 | SCM_SET_CELL_WORD_0 (x, (SCM_CELL_WORD_0 (x) & 0xFFFF) | data); | |
58 | } | |
59 | ||
197b0573 MV |
60 | void |
61 | scm_assert_smob_type (scm_t_bits tag, SCM val) | |
62 | { | |
63 | if (!SCM_SMOB_PREDICATE (tag, val)) | |
64 | scm_wrong_type_arg_msg (NULL, 0, val, scm_smobs[SCM_TC2SMOBNUM(tag)].name); | |
65 | } | |
66 | ||
9dd5943c MD |
67 | /* {Mark} |
68 | */ | |
69 | ||
70 | /* This function is vestigial. It used to be the mark function's | |
71 | responsibility to set the mark bit on the smob or port, but now the | |
72 | generic marking routine in gc.c takes care of that, and a zero | |
73 | pointer for a mark function means "don't bother". So you never | |
74 | need scm_mark0. | |
75 | ||
76 | However, we leave it here because it's harmless to call it, and | |
77 | people out there have smob code that uses it, and there's no reason | |
78 | to make their links fail. */ | |
79 | ||
80 | SCM | |
e81d98ec | 81 | scm_mark0 (SCM ptr SCM_UNUSED) |
9dd5943c MD |
82 | { |
83 | return SCM_BOOL_F; | |
84 | } | |
85 | ||
86 | SCM | |
22a52da1 DH |
87 | /* Dirk::FIXME: The name markcdr is misleading, since the term cdr should only |
88 | be used for real pairs. */ | |
6e8d25a6 | 89 | scm_markcdr (SCM ptr) |
9dd5943c | 90 | { |
22a52da1 | 91 | return SCM_CELL_OBJECT_1 (ptr); |
9dd5943c MD |
92 | } |
93 | ||
94 | /* {Free} | |
95 | */ | |
96 | ||
1be6b49c | 97 | size_t |
e81d98ec | 98 | scm_free0 (SCM ptr SCM_UNUSED) |
9dd5943c MD |
99 | { |
100 | return 0; | |
101 | } | |
102 | ||
1be6b49c | 103 | size_t |
9dd5943c MD |
104 | scm_smob_free (SCM obj) |
105 | { | |
4c9419ac MV |
106 | long n = SCM_SMOBNUM (obj); |
107 | if (scm_smobs[n].size > 0) | |
108 | scm_gc_free ((void *) SCM_CELL_WORD_1 (obj), | |
109 | scm_smobs[n].size, SCM_SMOBNAME (n)); | |
110 | return 0; | |
9dd5943c MD |
111 | } |
112 | ||
113 | /* {Print} | |
114 | */ | |
115 | ||
116 | int | |
e81d98ec | 117 | scm_smob_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
9dd5943c | 118 | { |
c014a02e | 119 | long n = SCM_SMOBNUM (exp); |
9dd5943c | 120 | scm_puts ("#<", port); |
2c16a78a | 121 | scm_puts (SCM_SMOBNAME (n) ? SCM_SMOBNAME (n) : "smob", port); |
9dd5943c | 122 | scm_putc (' ', port); |
7a7f7c53 | 123 | if (scm_smobs[n].size) |
0345e278 | 124 | scm_uintprint (SCM_CELL_WORD_1 (exp), 16, port); |
7a7f7c53 | 125 | else |
0345e278 | 126 | scm_uintprint (SCM_UNPACK (exp), 16, port); |
9dd5943c MD |
127 | scm_putc ('>', port); |
128 | return 1; | |
129 | } | |
1cc91f1b | 130 | |
0717dfd8 KN |
131 | /* {Apply} |
132 | */ | |
133 | ||
cb1c46c5 KN |
134 | #define SCM_SMOB_APPLY0(SMOB) \ |
135 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB) | |
34d19ef6 | 136 | #define SCM_SMOB_APPLY1(SMOB, A1) \ |
cb1c46c5 | 137 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1) |
34d19ef6 | 138 | #define SCM_SMOB_APPLY2(SMOB, A1, A2) \ |
cb1c46c5 | 139 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1, A2) |
34d19ef6 | 140 | #define SCM_SMOB_APPLY3(SMOB, A1, A2, A3) \ |
cb1c46c5 KN |
141 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1, A2, A3) |
142 | ||
cb1c46c5 KN |
143 | static SCM |
144 | scm_smob_apply_0_010 (SCM smob) | |
0717dfd8 | 145 | { |
cb1c46c5 | 146 | return SCM_SMOB_APPLY1 (smob, SCM_UNDEFINED); |
0717dfd8 KN |
147 | } |
148 | ||
cb1c46c5 KN |
149 | static SCM |
150 | scm_smob_apply_0_020 (SCM smob) | |
0717dfd8 | 151 | { |
cb1c46c5 | 152 | return SCM_SMOB_APPLY2 (smob, SCM_UNDEFINED, SCM_UNDEFINED); |
0717dfd8 KN |
153 | } |
154 | ||
cb1c46c5 KN |
155 | static SCM |
156 | scm_smob_apply_0_030 (SCM smob) | |
0717dfd8 | 157 | { |
cb1c46c5 | 158 | return SCM_SMOB_APPLY3 (smob, SCM_UNDEFINED, SCM_UNDEFINED, SCM_UNDEFINED); |
0717dfd8 KN |
159 | } |
160 | ||
cb1c46c5 KN |
161 | static SCM |
162 | scm_smob_apply_0_001 (SCM smob) | |
0717dfd8 | 163 | { |
cb1c46c5 KN |
164 | return SCM_SMOB_APPLY1 (smob, SCM_EOL); |
165 | } | |
166 | ||
167 | static SCM | |
168 | scm_smob_apply_0_011 (SCM smob) | |
169 | { | |
170 | return SCM_SMOB_APPLY2 (smob, SCM_UNDEFINED, SCM_EOL); | |
171 | } | |
172 | ||
173 | static SCM | |
174 | scm_smob_apply_0_021 (SCM smob) | |
175 | { | |
176 | return SCM_SMOB_APPLY3 (smob, SCM_UNDEFINED, SCM_UNDEFINED, SCM_EOL); | |
177 | } | |
178 | ||
179 | static SCM | |
180 | scm_smob_apply_0_error (SCM smob) | |
181 | { | |
182 | scm_wrong_num_args (smob); | |
183 | } | |
184 | ||
cb1c46c5 KN |
185 | static SCM |
186 | scm_smob_apply_1_020 (SCM smob, SCM a1) | |
187 | { | |
188 | return SCM_SMOB_APPLY2 (smob, a1, SCM_UNDEFINED); | |
189 | } | |
190 | ||
191 | static SCM | |
192 | scm_smob_apply_1_030 (SCM smob, SCM a1) | |
193 | { | |
194 | return SCM_SMOB_APPLY3 (smob, a1, SCM_UNDEFINED, SCM_UNDEFINED); | |
195 | } | |
196 | ||
197 | static SCM | |
198 | scm_smob_apply_1_001 (SCM smob, SCM a1) | |
199 | { | |
1afff620 | 200 | return SCM_SMOB_APPLY1 (smob, scm_list_1 (a1)); |
cb1c46c5 KN |
201 | } |
202 | ||
203 | static SCM | |
204 | scm_smob_apply_1_011 (SCM smob, SCM a1) | |
205 | { | |
206 | return SCM_SMOB_APPLY2 (smob, a1, SCM_EOL); | |
207 | } | |
208 | ||
209 | static SCM | |
210 | scm_smob_apply_1_021 (SCM smob, SCM a1) | |
211 | { | |
212 | return SCM_SMOB_APPLY3 (smob, a1, SCM_UNDEFINED, SCM_EOL); | |
213 | } | |
214 | ||
215 | static SCM | |
e81d98ec | 216 | scm_smob_apply_1_error (SCM smob, SCM a1 SCM_UNUSED) |
cb1c46c5 KN |
217 | { |
218 | scm_wrong_num_args (smob); | |
219 | } | |
220 | ||
cb1c46c5 KN |
221 | static SCM |
222 | scm_smob_apply_2_030 (SCM smob, SCM a1, SCM a2) | |
223 | { | |
224 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_UNDEFINED); | |
225 | } | |
226 | ||
227 | static SCM | |
228 | scm_smob_apply_2_001 (SCM smob, SCM a1, SCM a2) | |
229 | { | |
1afff620 | 230 | return SCM_SMOB_APPLY1 (smob, scm_list_2 (a1, a2)); |
7c58e21b | 231 | } |
cb1c46c5 KN |
232 | |
233 | static SCM | |
234 | scm_smob_apply_2_011 (SCM smob, SCM a1, SCM a2) | |
235 | { | |
1afff620 | 236 | return SCM_SMOB_APPLY2 (smob, a1, scm_list_1 (a2)); |
cb1c46c5 KN |
237 | } |
238 | ||
239 | static SCM | |
240 | scm_smob_apply_2_021 (SCM smob, SCM a1, SCM a2) | |
241 | { | |
242 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_EOL); | |
243 | } | |
244 | ||
245 | static SCM | |
e81d98ec | 246 | scm_smob_apply_2_error (SCM smob, SCM a1 SCM_UNUSED, SCM a2 SCM_UNUSED) |
cb1c46c5 KN |
247 | { |
248 | scm_wrong_num_args (smob); | |
249 | } | |
250 | ||
251 | static SCM | |
252 | scm_smob_apply_3_030 (SCM smob, SCM a1, SCM a2, SCM rst) | |
253 | { | |
d2e53ed6 | 254 | if (!scm_is_null (SCM_CDR (rst))) |
cb1c46c5 KN |
255 | scm_wrong_num_args (smob); |
256 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_CAR (rst)); | |
257 | } | |
258 | ||
259 | static SCM | |
260 | scm_smob_apply_3_001 (SCM smob, SCM a1, SCM a2, SCM rst) | |
261 | { | |
262 | return SCM_SMOB_APPLY1 (smob, scm_cons2 (a1, a2, rst)); | |
0717dfd8 KN |
263 | } |
264 | ||
cb1c46c5 KN |
265 | static SCM |
266 | scm_smob_apply_3_011 (SCM smob, SCM a1, SCM a2, SCM rst) | |
267 | { | |
268 | return SCM_SMOB_APPLY2 (smob, a1, scm_cons (a2, rst)); | |
269 | } | |
270 | ||
271 | static SCM | |
272 | scm_smob_apply_3_021 (SCM smob, SCM a1, SCM a2, SCM rst) | |
273 | { | |
274 | return SCM_SMOB_APPLY3 (smob, a1, a2, rst); | |
275 | } | |
276 | ||
277 | static SCM | |
e81d98ec DH |
278 | scm_smob_apply_3_error (SCM smob, |
279 | SCM a1 SCM_UNUSED, | |
280 | SCM a2 SCM_UNUSED, | |
281 | SCM rst SCM_UNUSED) | |
cb1c46c5 KN |
282 | { |
283 | scm_wrong_num_args (smob); | |
284 | } | |
285 | ||
286 | \f | |
7a7f7c53 | 287 | |
92c2555f | 288 | scm_t_bits |
da0e6c2b | 289 | scm_make_smob_type (char const *name, size_t size) |
7a7f7c53 | 290 | #define FUNC_NAME "scm_make_smob_type" |
0f2d19dd | 291 | { |
c014a02e | 292 | long new_smob; |
7a7f7c53 | 293 | |
9de87eea | 294 | SCM_CRITICAL_SECTION_START; |
7a7f7c53 DH |
295 | new_smob = scm_numsmob; |
296 | if (scm_numsmob != MAX_SMOB_COUNT) | |
297 | ++scm_numsmob; | |
9de87eea | 298 | SCM_CRITICAL_SECTION_END; |
7a7f7c53 DH |
299 | |
300 | if (new_smob == MAX_SMOB_COUNT) | |
301 | scm_misc_error (FUNC_NAME, "maximum number of smobs exceeded", SCM_EOL); | |
302 | ||
303 | scm_smobs[new_smob].name = name; | |
304 | if (size != 0) | |
2500356c | 305 | { |
7a7f7c53 DH |
306 | scm_smobs[new_smob].size = size; |
307 | scm_smobs[new_smob].free = scm_smob_free; | |
2500356c | 308 | } |
7a7f7c53 | 309 | |
d7ec6b9f MD |
310 | /* Make a class object if Goops is present. */ |
311 | if (scm_smob_class) | |
74b6d6e4 | 312 | scm_smob_class[new_smob] = scm_make_extended_class (name, 0); |
7a7f7c53 DH |
313 | |
314 | return scm_tc7_smob + new_smob * 256; | |
0f2d19dd | 315 | } |
7a7f7c53 DH |
316 | #undef FUNC_NAME |
317 | ||
0f2d19dd | 318 | |
9dd5943c | 319 | void |
92c2555f | 320 | scm_set_smob_mark (scm_t_bits tc, SCM (*mark) (SCM)) |
9dd5943c MD |
321 | { |
322 | scm_smobs[SCM_TC2SMOBNUM (tc)].mark = mark; | |
323 | } | |
324 | ||
325 | void | |
92c2555f | 326 | scm_set_smob_free (scm_t_bits tc, size_t (*free) (SCM)) |
9dd5943c MD |
327 | { |
328 | scm_smobs[SCM_TC2SMOBNUM (tc)].free = free; | |
329 | } | |
330 | ||
331 | void | |
92c2555f | 332 | scm_set_smob_print (scm_t_bits tc, int (*print) (SCM, SCM, scm_print_state*)) |
9dd5943c MD |
333 | { |
334 | scm_smobs[SCM_TC2SMOBNUM (tc)].print = print; | |
335 | } | |
336 | ||
337 | void | |
92c2555f | 338 | scm_set_smob_equalp (scm_t_bits tc, SCM (*equalp) (SCM, SCM)) |
9dd5943c MD |
339 | { |
340 | scm_smobs[SCM_TC2SMOBNUM (tc)].equalp = equalp; | |
341 | } | |
342 | ||
0717dfd8 | 343 | void |
92c2555f | 344 | scm_set_smob_apply (scm_t_bits tc, SCM (*apply) (), |
7c58e21b | 345 | unsigned int req, unsigned int opt, unsigned int rst) |
0717dfd8 | 346 | { |
cb1c46c5 KN |
347 | SCM (*apply_0) (SCM); |
348 | SCM (*apply_1) (SCM, SCM); | |
349 | SCM (*apply_2) (SCM, SCM, SCM); | |
350 | SCM (*apply_3) (SCM, SCM, SCM, SCM); | |
351 | int type = SCM_GSUBR_MAKTYPE (req, opt, rst); | |
352 | ||
7c58e21b | 353 | if (rst > 1 || req + opt + rst > 3) |
cb1c46c5 KN |
354 | { |
355 | puts ("Unsupported smob application type"); | |
356 | abort (); | |
357 | } | |
358 | ||
359 | switch (type) | |
360 | { | |
361 | case SCM_GSUBR_MAKTYPE (0, 0, 0): | |
7c58e21b | 362 | apply_0 = apply; break; |
cb1c46c5 KN |
363 | case SCM_GSUBR_MAKTYPE (0, 1, 0): |
364 | apply_0 = scm_smob_apply_0_010; break; | |
365 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
366 | apply_0 = scm_smob_apply_0_020; break; | |
367 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
368 | apply_0 = scm_smob_apply_0_030; break; | |
369 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
370 | apply_0 = scm_smob_apply_0_001; break; | |
371 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
372 | apply_0 = scm_smob_apply_0_011; break; | |
373 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
374 | apply_0 = scm_smob_apply_0_021; break; | |
375 | default: | |
376 | apply_0 = scm_smob_apply_0_error; break; | |
377 | } | |
378 | ||
379 | switch (type) | |
380 | { | |
381 | case SCM_GSUBR_MAKTYPE (1, 0, 0): | |
382 | case SCM_GSUBR_MAKTYPE (0, 1, 0): | |
7c58e21b | 383 | apply_1 = apply; break; |
cb1c46c5 KN |
384 | case SCM_GSUBR_MAKTYPE (1, 1, 0): |
385 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
386 | apply_1 = scm_smob_apply_1_020; break; | |
387 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
388 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
389 | apply_1 = scm_smob_apply_1_030; break; | |
390 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
391 | apply_1 = scm_smob_apply_1_001; break; | |
392 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
393 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
394 | apply_1 = scm_smob_apply_1_011; break; | |
395 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
396 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
397 | apply_1 = scm_smob_apply_1_021; break; | |
398 | default: | |
399 | apply_1 = scm_smob_apply_1_error; break; | |
400 | } | |
401 | ||
402 | switch (type) | |
403 | { | |
404 | case SCM_GSUBR_MAKTYPE (2, 0, 0): | |
405 | case SCM_GSUBR_MAKTYPE (1, 1, 0): | |
406 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
7c58e21b | 407 | apply_2 = apply; break; |
cb1c46c5 KN |
408 | case SCM_GSUBR_MAKTYPE (2, 1, 0): |
409 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
410 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
411 | apply_2 = scm_smob_apply_2_030; break; | |
412 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
413 | apply_2 = scm_smob_apply_2_001; break; | |
414 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
415 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
416 | apply_2 = scm_smob_apply_2_011; break; | |
417 | case SCM_GSUBR_MAKTYPE (2, 0, 1): | |
418 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
419 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
420 | apply_2 = scm_smob_apply_2_021; break; | |
421 | default: | |
422 | apply_2 = scm_smob_apply_2_error; break; | |
423 | } | |
424 | ||
425 | switch (type) | |
426 | { | |
427 | case SCM_GSUBR_MAKTYPE (3, 0, 0): | |
428 | case SCM_GSUBR_MAKTYPE (2, 1, 0): | |
429 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
430 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
431 | apply_3 = scm_smob_apply_3_030; break; | |
432 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
433 | apply_3 = scm_smob_apply_3_001; break; | |
434 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
435 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
436 | apply_3 = scm_smob_apply_3_011; break; | |
437 | case SCM_GSUBR_MAKTYPE (2, 0, 1): | |
438 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
439 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
440 | apply_3 = scm_smob_apply_3_021; break; | |
441 | default: | |
442 | apply_3 = scm_smob_apply_3_error; break; | |
443 | } | |
444 | ||
03416a99 | 445 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply = apply; |
cb1c46c5 KN |
446 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_0 = apply_0; |
447 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_1 = apply_1; | |
448 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_2 = apply_2; | |
449 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_3 = apply_3; | |
68b06924 | 450 | scm_smobs[SCM_TC2SMOBNUM (tc)].gsubr_type = type; |
74b6d6e4 MD |
451 | |
452 | if (scm_smob_class) | |
453 | scm_i_inherit_applicable (scm_smob_class[SCM_TC2SMOBNUM (tc)]); | |
0717dfd8 KN |
454 | } |
455 | ||
9dd5943c | 456 | SCM |
92c2555f | 457 | scm_make_smob (scm_t_bits tc) |
9dd5943c | 458 | { |
c014a02e | 459 | long n = SCM_TC2SMOBNUM (tc); |
1be6b49c | 460 | size_t size = scm_smobs[n].size; |
16d4699b | 461 | scm_t_bits data = (size > 0 |
4c9419ac | 462 | ? (scm_t_bits) scm_gc_malloc (size, SCM_SMOBNAME (n)) |
16d4699b | 463 | : 0); |
228a24ef | 464 | return scm_cell (tc, data); |
9dd5943c MD |
465 | } |
466 | ||
ceef3208 | 467 | \f |
534c55a9 | 468 | /* {Initialization for the type of free cells} |
0f2d19dd JB |
469 | */ |
470 | ||
ceef3208 | 471 | static int |
e81d98ec | 472 | free_print (SCM exp, SCM port, scm_print_state *pstate SCM_UNUSED) |
ceef3208 JB |
473 | { |
474 | char buf[100]; | |
e841c3e0 KN |
475 | sprintf (buf, "#<freed cell %p; GC missed a reference>", |
476 | (void *) SCM_UNPACK (exp)); | |
ceef3208 | 477 | scm_puts (buf, port); |
1e71eafb HWN |
478 | |
479 | #if (SCM_DEBUG_CELL_ACCESSES == 1) | |
480 | if (scm_debug_cell_accesses_p) | |
481 | abort(); | |
482 | #endif | |
483 | ||
ceef3208 JB |
484 | |
485 | return 1; | |
486 | } | |
487 | ||
0f2d19dd JB |
488 | void |
489 | scm_smob_prehistory () | |
0f2d19dd | 490 | { |
c014a02e | 491 | long i; |
92c2555f | 492 | scm_t_bits tc; |
e841c3e0 | 493 | |
0f2d19dd | 494 | scm_numsmob = 0; |
7a7f7c53 DH |
495 | for (i = 0; i < MAX_SMOB_COUNT; ++i) |
496 | { | |
497 | scm_smobs[i].name = 0; | |
498 | scm_smobs[i].size = 0; | |
499 | scm_smobs[i].mark = 0; | |
500 | scm_smobs[i].free = 0; | |
501 | scm_smobs[i].print = scm_smob_print; | |
502 | scm_smobs[i].equalp = 0; | |
503 | scm_smobs[i].apply = 0; | |
504 | scm_smobs[i].apply_0 = 0; | |
505 | scm_smobs[i].apply_1 = 0; | |
506 | scm_smobs[i].apply_2 = 0; | |
507 | scm_smobs[i].apply_3 = 0; | |
508 | scm_smobs[i].gsubr_type = 0; | |
509 | } | |
9dd5943c | 510 | |
534c55a9 | 511 | /* WARNING: This scm_make_smob_type call must be done first. */ |
e841c3e0 KN |
512 | tc = scm_make_smob_type ("free", 0); |
513 | scm_set_smob_print (tc, free_print); | |
0f2d19dd | 514 | } |
89e00824 ML |
515 | |
516 | /* | |
517 | Local Variables: | |
518 | c-file-style: "gnu" | |
519 | End: | |
520 | */ |