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0f2d19dd JB |
1 | /* classes: h_files */ |
2 | ||
61045190 DH |
3 | #ifndef SCM_GC_H |
4 | #define SCM_GC_H | |
8c494e99 | 5 | |
9bc4701c | 6 | /* Copyright (C) 1995,1996,1998,1999,2000,2001, 2002 Free Software Foundation, Inc. |
a00c95d9 | 7 | * |
0f2d19dd JB |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2, or (at your option) | |
11 | * any later version. | |
a00c95d9 | 12 | * |
0f2d19dd JB |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
a00c95d9 | 17 | * |
0f2d19dd JB |
18 | * You should have received a copy of the GNU General Public License |
19 | * along with this software; see the file COPYING. If not, write to | |
82892bed JB |
20 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
21 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
22 | * |
23 | * As a special exception, the Free Software Foundation gives permission | |
24 | * for additional uses of the text contained in its release of GUILE. | |
25 | * | |
26 | * The exception is that, if you link the GUILE library with other files | |
27 | * to produce an executable, this does not by itself cause the | |
28 | * resulting executable to be covered by the GNU General Public License. | |
29 | * Your use of that executable is in no way restricted on account of | |
30 | * linking the GUILE library code into it. | |
31 | * | |
32 | * This exception does not however invalidate any other reasons why | |
33 | * the executable file might be covered by the GNU General Public License. | |
34 | * | |
35 | * This exception applies only to the code released by the | |
36 | * Free Software Foundation under the name GUILE. If you copy | |
37 | * code from other Free Software Foundation releases into a copy of | |
38 | * GUILE, as the General Public License permits, the exception does | |
39 | * not apply to the code that you add in this way. To avoid misleading | |
40 | * anyone as to the status of such modified files, you must delete | |
41 | * this exception notice from them. | |
42 | * | |
43 | * If you write modifications of your own for GUILE, it is your choice | |
44 | * whether to permit this exception to apply to your modifications. | |
82892bed | 45 | * If you do not wish that, delete this exception notice. */ |
d3a6bc94 | 46 | |
0f2d19dd JB |
47 | \f |
48 | ||
b4309c3c | 49 | #include "libguile/__scm.h" |
2549a709 | 50 | |
9b3e180c MD |
51 | #include "libguile/hooks.h" |
52 | ||
9bc4701c MD |
53 | #ifdef USE_PTHREAD_THREADS |
54 | #include "libguile/pthread-threads.h" | |
55 | #else | |
56 | #include "libguile/null-threads.h" | |
57 | #endif | |
58 | ||
0f2d19dd JB |
59 | \f |
60 | ||
228a24ef | 61 | typedef struct scm_t_cell |
2549a709 | 62 | { |
92c2555f MV |
63 | scm_t_bits word_0; |
64 | scm_t_bits word_1; | |
228a24ef | 65 | } scm_t_cell; |
2549a709 | 66 | |
c8a1bdc4 HWN |
67 | /* |
68 | CARDS | |
69 | ||
70 | A card is a small `page' of memory; it will be the unit for lazy | |
71 | sweeping, generations, etc. The first cell of a card contains a | |
72 | pointer to the mark bitvector, so that we can find the bitvector efficiently: we | |
73 | knock off some lowerorder bits. | |
74 | ||
75 | The size on a 32 bit machine is 256 cells = 2kb. The card | |
76 | */ | |
2549a709 | 77 | |
2549a709 DH |
78 | |
79 | ||
80 | /* Cray machines have pointers that are incremented once for each word, | |
81 | * rather than each byte, the 3 most significant bits encode the byte | |
82 | * within the word. The following macros deal with this by storing the | |
83 | * native Cray pointers like the ones that looks like scm expects. This | |
228a24ef | 84 | * is done for any pointers that might appear in the car of a scm_t_cell, |
e618c9a3 | 85 | * pointers to scm_vector elts, functions, &c are not munged. |
2549a709 DH |
86 | */ |
87 | #ifdef _UNICOS | |
c8a1bdc4 | 88 | # define SCM2PTR(x) ((scm_t_cell *) (SCM_UNPACK (x) >> 3)) |
92c2555f | 89 | # define PTR2SCM(x) (SCM_PACK (((scm_t_bits) (x)) << 3)) |
2549a709 | 90 | #else |
c8a1bdc4 | 91 | # define SCM2PTR(x) ((scm_t_cell *) (SCM_UNPACK (x))) |
92c2555f | 92 | # define PTR2SCM(x) (SCM_PACK ((scm_t_bits) (x))) |
2549a709 DH |
93 | #endif /* def _UNICOS */ |
94 | ||
c8a1bdc4 | 95 | |
e618c9a3 | 96 | #define SCM_GC_CARD_N_HEADER_CELLS 1 |
f91f77e6 | 97 | #define SCM_GC_CARD_N_CELLS 256 |
c8a1bdc4 | 98 | #define SCM_GC_SIZEOF_CARD SCM_GC_CARD_N_CELLS * sizeof (scm_t_cell) |
e618c9a3 | 99 | |
c8a1bdc4 | 100 | #define SCM_GC_CARD_BVEC(card) ((scm_t_c_bvec_long *) ((card)->word_0)) |
34d19ef6 HWN |
101 | #define SCM_GC_SET_CARD_BVEC(card, bvec) \ |
102 | ((card)->word_0 = (scm_t_bits) (bvec)) | |
34d19ef6 HWN |
103 | |
104 | ||
c014a02e | 105 | #define SCM_GC_GET_CARD_FLAGS(card) ((long) ((card)->word_1)) |
322ec19d | 106 | #define SCM_GC_SET_CARD_FLAGS(card, flags) \ |
92c2555f | 107 | ((card)->word_1 = (scm_t_bits) (flags)) |
c8a1bdc4 | 108 | #define SCM_GC_CLEAR_CARD_FLAGS(card) (SCM_GC_SET_CARD_FLAGS (card, 0L)) |
e618c9a3 ML |
109 | |
110 | #define SCM_GC_GET_CARD_FLAG(card, shift) (SCM_GC_GET_CARD_FLAGS (card) & (1L << (shift))) | |
322ec19d ML |
111 | #define SCM_GC_SET_CARD_FLAG(card, shift) \ |
112 | (SCM_GC_SET_CARD_FLAGS (card, SCM_GC_GET_CARD_FLAGS(card) | (1L << (shift)))) | |
c8a1bdc4 | 113 | #define SCM_GC_CLEAR_CARD_FLAG(card, shift) \ |
322ec19d | 114 | (SCM_GC_SET_CARD_FLAGS (card, SCM_GC_GET_CARD_FLAGS(card) & ~(1L << (shift)))) |
e618c9a3 | 115 | |
1383773b HWN |
116 | /* |
117 | Remove card flags. They hamper lazy initialization, and aren't used | |
118 | anyways. | |
119 | */ | |
e618c9a3 ML |
120 | |
121 | /* card addressing. for efficiency, cards are *always* aligned to | |
122 | SCM_GC_CARD_SIZE. */ | |
123 | ||
c8a1bdc4 | 124 | #define SCM_GC_CARD_SIZE_MASK (SCM_GC_CARD_N_CELLS * sizeof (scm_t_cell) - 1) |
e618c9a3 ML |
125 | #define SCM_GC_CARD_ADDR_MASK (~SCM_GC_CARD_SIZE_MASK) |
126 | ||
c8a1bdc4 | 127 | #define SCM_GC_CELL_CARD(x) ((scm_t_cell *) ((long) (x) & SCM_GC_CARD_ADDR_MASK)) |
c014a02e | 128 | #define SCM_GC_CELL_OFFSET(x) (((long) (x) & SCM_GC_CARD_SIZE_MASK) >> SCM_CELL_SIZE_SHIFT) |
e618c9a3 ML |
129 | #define SCM_GC_CELL_BVEC(x) SCM_GC_CARD_BVEC (SCM_GC_CELL_CARD (x)) |
130 | #define SCM_GC_CELL_GET_BIT(x) SCM_C_BVEC_GET (SCM_GC_CELL_BVEC (x), SCM_GC_CELL_OFFSET (x)) | |
131 | #define SCM_GC_CELL_SET_BIT(x) SCM_C_BVEC_SET (SCM_GC_CELL_BVEC (x), SCM_GC_CELL_OFFSET (x)) | |
c8a1bdc4 | 132 | #define SCM_GC_CELL_CLEAR_BIT(x) SCM_C_BVEC_CLEAR (SCM_GC_CELL_BVEC (x), SCM_GC_CELL_OFFSET (x)) |
e618c9a3 | 133 | |
c8a1bdc4 | 134 | #define SCM_GC_CARD_UP(x) SCM_GC_CELL_CARD ((char *) (x) + SCM_GC_SIZEOF_CARD - 1) |
e618c9a3 ML |
135 | #define SCM_GC_CARD_DOWN SCM_GC_CELL_CARD |
136 | ||
137 | /* low level bit banging aids */ | |
c8a1bdc4 | 138 | typedef unsigned long scm_t_c_bvec_long; |
e618c9a3 ML |
139 | |
140 | #if (SIZEOF_LONG == 8) | |
c8a1bdc4 | 141 | # define SCM_C_BVEC_LONG_BITS 64 |
e618c9a3 ML |
142 | # define SCM_C_BVEC_OFFSET_SHIFT 6 |
143 | # define SCM_C_BVEC_POS_MASK 63 | |
144 | # define SCM_CELL_SIZE_SHIFT 4 | |
c8a1bdc4 | 145 | # define SCM_SIZEOF_LONG SIZEOF_LONG |
e618c9a3 | 146 | #else |
c8a1bdc4 HWN |
147 | # define SCM_C_BVEC_LONG_BITS 32 |
148 | # define SCM_SIZEOF_LONG SIZEOF_LONG | |
e618c9a3 ML |
149 | # define SCM_C_BVEC_OFFSET_SHIFT 5 |
150 | # define SCM_C_BVEC_POS_MASK 31 | |
151 | # define SCM_CELL_SIZE_SHIFT 3 | |
152 | #endif | |
153 | ||
154 | #define SCM_C_BVEC_OFFSET(pos) (pos >> SCM_C_BVEC_OFFSET_SHIFT) | |
155 | ||
156 | #define SCM_C_BVEC_GET(bvec, pos) (bvec[SCM_C_BVEC_OFFSET (pos)] & (1L << (pos & SCM_C_BVEC_POS_MASK))) | |
157 | #define SCM_C_BVEC_SET(bvec, pos) (bvec[SCM_C_BVEC_OFFSET (pos)] |= (1L << (pos & SCM_C_BVEC_POS_MASK))) | |
c8a1bdc4 | 158 | #define SCM_C_BVEC_CLEAR(bvec, pos) (bvec[SCM_C_BVEC_OFFSET (pos)] &= ~(1L << (pos & SCM_C_BVEC_POS_MASK))) |
e618c9a3 ML |
159 | |
160 | /* testing and changing GC marks */ | |
c8a1bdc4 HWN |
161 | #define SCM_GC_MARK_P(x) SCM_GC_CELL_GET_BIT (x) |
162 | #define SCM_SET_GC_MARK(x) SCM_GC_CELL_SET_BIT (x) | |
163 | #define SCM_CLEAR_GC_MARK(x) SCM_GC_CELL_CLEAR_BIT (x) | |
1fc8902f DH |
164 | |
165 | /* Low level cell data accessing macros. These macros should only be used | |
166 | * from within code related to garbage collection issues, since they will | |
167 | * never check the cells they are applied to - not even if guile is compiled | |
168 | * in debug mode. In particular these macros will even work for free cells, | |
169 | * which should never be encountered by user code. */ | |
170 | ||
171 | #define SCM_GC_CELL_WORD(x, n) \ | |
172 | (((const scm_t_bits *) SCM2PTR (x)) [n]) | |
173 | #define SCM_GC_CELL_OBJECT(x, n) \ | |
174 | (SCM_PACK (((const scm_t_bits *) SCM2PTR (x)) [n])) | |
175 | #define SCM_GC_SET_CELL_WORD(x, n, v) \ | |
176 | (((scm_t_bits *) SCM2PTR (x)) [n] = (scm_t_bits) (v)) | |
177 | #define SCM_GC_SET_CELL_OBJECT(x, n, v) \ | |
c8a1bdc4 | 178 | (((scm_t_bits *) SCM2PTR (x)) [n] = SCM_UNPACK (v)) |
1fc8902f DH |
179 | #define SCM_GC_CELL_TYPE(x) SCM_GC_CELL_WORD (x, 0) |
180 | ||
181 | ||
182 | /* Except for the garbage collector, no part of guile should ever run over a | |
183 | * free cell. Thus, if guile is compiled in debug mode the SCM_CELL_* and | |
184 | * SCM_SET_CELL_* macros below report an error if they are applied to a free | |
185 | * cell. Some other plausibility checks are also performed. However, if | |
186 | * guile is not compiled in debug mode, there won't be any time penalty at all | |
187 | * when using these macros. */ | |
2549a709 | 188 | |
406c7d90 DH |
189 | #if (SCM_DEBUG_CELL_ACCESSES == 1) |
190 | # define SCM_VALIDATE_CELL(cell, expr) (scm_assert_cell_valid (cell), (expr)) | |
708cb87c | 191 | #else |
61045190 | 192 | # define SCM_VALIDATE_CELL(cell, expr) (expr) |
708cb87c | 193 | #endif |
46d53380 | 194 | |
f706a58b | 195 | #define SCM_CELL_WORD(x, n) \ |
1fc8902f | 196 | SCM_VALIDATE_CELL ((x), SCM_GC_CELL_WORD ((x), (n))) |
2549a709 DH |
197 | #define SCM_CELL_WORD_0(x) SCM_CELL_WORD (x, 0) |
198 | #define SCM_CELL_WORD_1(x) SCM_CELL_WORD (x, 1) | |
199 | #define SCM_CELL_WORD_2(x) SCM_CELL_WORD (x, 2) | |
200 | #define SCM_CELL_WORD_3(x) SCM_CELL_WORD (x, 3) | |
201 | ||
f706a58b | 202 | #define SCM_CELL_OBJECT(x, n) \ |
1fc8902f | 203 | SCM_VALIDATE_CELL ((x), SCM_GC_CELL_OBJECT ((x), (n))) |
2549a709 DH |
204 | #define SCM_CELL_OBJECT_0(x) SCM_CELL_OBJECT (x, 0) |
205 | #define SCM_CELL_OBJECT_1(x) SCM_CELL_OBJECT (x, 1) | |
206 | #define SCM_CELL_OBJECT_2(x) SCM_CELL_OBJECT (x, 2) | |
207 | #define SCM_CELL_OBJECT_3(x) SCM_CELL_OBJECT (x, 3) | |
208 | ||
f706a58b | 209 | #define SCM_SET_CELL_WORD(x, n, v) \ |
1fc8902f | 210 | SCM_VALIDATE_CELL ((x), SCM_GC_SET_CELL_WORD ((x), (n), (v))) |
2549a709 DH |
211 | #define SCM_SET_CELL_WORD_0(x, v) SCM_SET_CELL_WORD (x, 0, v) |
212 | #define SCM_SET_CELL_WORD_1(x, v) SCM_SET_CELL_WORD (x, 1, v) | |
213 | #define SCM_SET_CELL_WORD_2(x, v) SCM_SET_CELL_WORD (x, 2, v) | |
214 | #define SCM_SET_CELL_WORD_3(x, v) SCM_SET_CELL_WORD (x, 3, v) | |
215 | ||
f706a58b | 216 | #define SCM_SET_CELL_OBJECT(x, n, v) \ |
1fc8902f | 217 | SCM_VALIDATE_CELL ((x), SCM_GC_SET_CELL_OBJECT ((x), (n), (v))) |
2549a709 DH |
218 | #define SCM_SET_CELL_OBJECT_0(x, v) SCM_SET_CELL_OBJECT (x, 0, v) |
219 | #define SCM_SET_CELL_OBJECT_1(x, v) SCM_SET_CELL_OBJECT (x, 1, v) | |
220 | #define SCM_SET_CELL_OBJECT_2(x, v) SCM_SET_CELL_OBJECT (x, 2, v) | |
221 | #define SCM_SET_CELL_OBJECT_3(x, v) SCM_SET_CELL_OBJECT (x, 3, v) | |
222 | ||
223 | #define SCM_CELL_TYPE(x) SCM_CELL_WORD_0 (x) | |
224 | #define SCM_SET_CELL_TYPE(x, t) SCM_SET_CELL_WORD_0 (x, t) | |
225 | ||
61045190 | 226 | |
eab1b259 | 227 | |
1fc8902f DH |
228 | /* Freelists consist of linked cells where the type entry holds the value |
229 | * scm_tc_free_cell and the second entry holds a pointer to the next cell of | |
230 | * the freelist. Due to this structure, freelist cells are not cons cells | |
231 | * and thus may not be accessed using SCM_CAR and SCM_CDR. */ | |
61045190 | 232 | |
c8a1bdc4 HWN |
233 | /* |
234 | SCM_FREECELL_P removed ; the semantics are ambiguous with lazy | |
235 | sweeping. Could mean "this cell is no longer in use (will be swept)" | |
236 | or "this cell has just been swept, and is not yet in use". | |
237 | */ | |
238 | ||
239 | #define SCM_FREECELL_P this_macro_has_been_removed_see_gc_header_file | |
240 | ||
1fc8902f DH |
241 | #define SCM_FREE_CELL_CDR(x) \ |
242 | (SCM_GC_CELL_OBJECT ((x), 1)) | |
243 | #define SCM_SET_FREE_CELL_CDR(x, v) \ | |
244 | (SCM_GC_SET_CELL_OBJECT ((x), 1, (v))) | |
61045190 DH |
245 | |
246 | ||
92c2555f | 247 | #define SCM_CELL_WORD_LOC(x, n) ((scm_t_bits *) & SCM_CELL_WORD (x, n)) |
f706a58b DH |
248 | #define SCM_CARLOC(x) ((SCM *) SCM_CELL_WORD_LOC ((x), 0)) |
249 | #define SCM_CDRLOC(x) ((SCM *) SCM_CELL_WORD_LOC ((x), 1)) | |
2549a709 DH |
250 | |
251 | ||
2549a709 | 252 | |
79e3f9e2 | 253 | |
61045190 | 254 | #if (SCM_DEBUG_CELL_ACCESSES == 1) |
eab1b259 HWN |
255 | /* Set this to != 0 if every cell that is accessed shall be checked: |
256 | */ | |
257 | SCM_API int scm_debug_cell_accesses_p; | |
258 | SCM_API int scm_expensive_debug_cell_accesses_p; | |
259 | SCM_API int scm_debug_cells_gc_interval ; | |
1e71eafb | 260 | void scm_i_expensive_validation_check (SCM cell); |
61045190 DH |
261 | #endif |
262 | ||
33b001fd MV |
263 | SCM_API int scm_block_gc; |
264 | SCM_API int scm_gc_heap_lock; | |
265 | SCM_API unsigned int scm_gc_running_p; | |
0f2d19dd JB |
266 | \f |
267 | ||
c8a1bdc4 | 268 | #if (SCM_ENABLE_DEPRECATED == 1) |
33b001fd MV |
269 | SCM_API size_t scm_default_init_heap_size_1; |
270 | SCM_API int scm_default_min_yield_1; | |
271 | SCM_API size_t scm_default_init_heap_size_2; | |
272 | SCM_API int scm_default_min_yield_2; | |
273 | SCM_API size_t scm_default_max_segment_size; | |
c8a1bdc4 HWN |
274 | #else |
275 | #define scm_default_init_heap_size_1 deprecated | |
276 | #define scm_default_min_yield_1 deprecated | |
277 | #define scm_default_init_heap_size_2 deprecated | |
278 | #define scm_default_min_yield_2 deprecated | |
279 | #define scm_default_max_segment_size deprecated | |
280 | #endif | |
281 | ||
33b001fd MV |
282 | |
283 | SCM_API size_t scm_max_segment_size; | |
c8a1bdc4 | 284 | |
9bc4701c MD |
285 | #define SCM_FREELIST_CREATE(key) \ |
286 | do { SCM *ls = (SCM *) malloc (sizeof (SCM)); \ | |
287 | *ls = SCM_EOL; \ | |
288 | scm_setspecific ((key), ls); } while (0) | |
289 | #define SCM_FREELIST_LOC(key) ((SCM *) scm_getspecific (key)) | |
290 | extern scm_t_key scm_i_freelist; | |
291 | extern scm_t_key scm_i_freelist2; | |
eab1b259 | 292 | extern struct scm_t_cell_type_statistics scm_i_master_freelist; |
eab1b259 HWN |
293 | extern struct scm_t_cell_type_statistics scm_i_master_freelist2; |
294 | ||
c8a1bdc4 HWN |
295 | |
296 | SCM_API unsigned long scm_gc_cells_swept; | |
297 | SCM_API unsigned long scm_gc_cells_collected; | |
33b001fd | 298 | SCM_API unsigned long scm_gc_cells_collected; |
33b001fd MV |
299 | SCM_API unsigned long scm_gc_malloc_collected; |
300 | SCM_API unsigned long scm_gc_ports_collected; | |
f2893a25 | 301 | SCM_API unsigned long scm_cells_allocated; |
c2cbcc57 HWN |
302 | SCM_API int scm_gc_cell_yield_percentage; |
303 | SCM_API int scm_gc_malloc_yield_percentage; | |
33b001fd MV |
304 | SCM_API unsigned long scm_mallocated; |
305 | SCM_API unsigned long scm_mtrigger; | |
306 | ||
c8a1bdc4 HWN |
307 | |
308 | ||
33b001fd MV |
309 | SCM_API SCM scm_after_gc_hook; |
310 | ||
311 | SCM_API scm_t_c_hook scm_before_gc_c_hook; | |
312 | SCM_API scm_t_c_hook scm_before_mark_c_hook; | |
313 | SCM_API scm_t_c_hook scm_before_sweep_c_hook; | |
314 | SCM_API scm_t_c_hook scm_after_sweep_c_hook; | |
315 | SCM_API scm_t_c_hook scm_after_gc_c_hook; | |
9b3e180c | 316 | |
bb2c57fa | 317 | #if defined (GUILE_DEBUG) || defined (GUILE_DEBUG_FREELIST) |
c8a1bdc4 HWN |
318 | #define scm_map_free_list deprecated |
319 | #define scm_free_list_length deprecated | |
bb2c57fa | 320 | #endif |
c8a1bdc4 HWN |
321 | |
322 | #if (SCM_ENABLE_DEPRECATED == 1) && defined (GUILE_DEBUG_FREELIST) | |
33b001fd | 323 | SCM_API SCM scm_gc_set_debug_check_freelist_x (SCM flag); |
88256b2e | 324 | #endif |
0f2d19dd | 325 | \f |
0f2d19dd | 326 | |
61045190 | 327 | #if (SCM_DEBUG_CELL_ACCESSES == 1) |
33b001fd | 328 | SCM_API void scm_assert_cell_valid (SCM); |
61045190 | 329 | #endif |
c8a1bdc4 HWN |
330 | |
331 | SCM_API SCM scm_set_debug_cell_accesses_x (SCM flag); | |
332 | ||
333 | ||
33b001fd | 334 | SCM_API SCM scm_object_address (SCM obj); |
33b001fd MV |
335 | SCM_API SCM scm_gc_stats (void); |
336 | SCM_API SCM scm_gc (void); | |
c8a1bdc4 HWN |
337 | SCM_API void scm_gc_for_alloc (struct scm_t_cell_type_statistics *freelist); |
338 | SCM_API SCM scm_gc_for_newcell (struct scm_t_cell_type_statistics *master, SCM *freelist); | |
33b001fd MV |
339 | SCM_API void scm_igc (const char *what); |
340 | SCM_API void scm_gc_mark (SCM p); | |
341 | SCM_API void scm_gc_mark_dependencies (SCM p); | |
342 | SCM_API void scm_mark_locations (SCM_STACKITEM x[], unsigned long n); | |
c8a1bdc4 | 343 | SCM_API int scm_in_heap_p (SCM value); |
33b001fd | 344 | SCM_API void scm_gc_sweep (void); |
4c9419ac MV |
345 | |
346 | SCM_API void *scm_malloc (size_t size); | |
ba1b2226 | 347 | SCM_API void *scm_calloc (size_t size); |
4c9419ac MV |
348 | SCM_API void *scm_realloc (void *mem, size_t size); |
349 | SCM_API char *scm_strdup (const char *str); | |
350 | SCM_API char *scm_strndup (const char *str, size_t n); | |
351 | SCM_API void scm_gc_register_collectable_memory (void *mem, size_t size, | |
352 | const char *what); | |
353 | SCM_API void scm_gc_unregister_collectable_memory (void *mem, size_t size, | |
354 | const char *what); | |
39e8f371 | 355 | SCM_API void *scm_gc_calloc (size_t size, const char *what); |
4c9419ac MV |
356 | SCM_API void *scm_gc_malloc (size_t size, const char *what); |
357 | SCM_API void *scm_gc_realloc (void *mem, size_t old_size, | |
358 | size_t new_size, const char *what); | |
359 | SCM_API void scm_gc_free (void *mem, size_t size, const char *what); | |
360 | SCM_API char *scm_gc_strdup (const char *str, const char *what); | |
361 | SCM_API char *scm_gc_strndup (const char *str, size_t n, const char *what); | |
362 | ||
33b001fd MV |
363 | SCM_API void scm_remember_upto_here_1 (SCM obj); |
364 | SCM_API void scm_remember_upto_here_2 (SCM obj1, SCM obj2); | |
365 | SCM_API void scm_remember_upto_here (SCM obj1, ...); | |
366 | SCM_API SCM scm_return_first (SCM elt, ...); | |
367 | SCM_API int scm_return_first_int (int x, ...); | |
368 | SCM_API SCM scm_permanent_object (SCM obj); | |
369 | SCM_API SCM scm_gc_protect_object (SCM obj); | |
370 | SCM_API SCM scm_gc_unprotect_object (SCM obj); | |
371 | SCM_API void scm_gc_register_root (SCM *p); | |
372 | SCM_API void scm_gc_unregister_root (SCM *p); | |
373 | SCM_API void scm_gc_register_roots (SCM *b, unsigned long n); | |
374 | SCM_API void scm_gc_unregister_roots (SCM *b, unsigned long n); | |
375 | SCM_API int scm_init_storage (void); | |
376 | SCM_API void *scm_get_stack_base (void); | |
377 | SCM_API void scm_init_gc (void); | |
d1ca2c64 | 378 | |
d678e25c MV |
379 | #if SCM_ENABLE_DEPRECATED == 1 |
380 | ||
381 | SCM_API SCM scm_deprecated_newcell (void); | |
382 | SCM_API SCM scm_deprecated_newcell2 (void); | |
383 | ||
384 | #define SCM_NEWCELL(_into) \ | |
385 | do { _into = scm_deprecated_newcell (); } while (0) | |
386 | #define SCM_NEWCELL2(_into) \ | |
387 | do { _into = scm_deprecated_newcell2 (); } while (0) | |
388 | ||
539b08a4 MV |
389 | SCM_API void * scm_must_malloc (size_t len, const char *what); |
390 | SCM_API void * scm_must_realloc (void *where, | |
391 | size_t olen, size_t len, | |
392 | const char *what); | |
393 | SCM_API char *scm_must_strdup (const char *str); | |
394 | SCM_API char *scm_must_strndup (const char *str, size_t n); | |
395 | SCM_API void scm_done_malloc (long size); | |
396 | SCM_API void scm_done_free (long size); | |
397 | SCM_API void scm_must_free (void *obj); | |
398 | ||
d678e25c MV |
399 | #endif |
400 | ||
61045190 | 401 | #endif /* SCM_GC_H */ |
89e00824 ML |
402 | |
403 | /* | |
404 | Local Variables: | |
405 | c-file-style: "gnu" | |
406 | End: | |
407 | */ |