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