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Diffstat (limited to '')
-rw-r--r-- | libraries/eina/src/lib/eina_mempool.c | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/libraries/eina/src/lib/eina_mempool.c b/libraries/eina/src/lib/eina_mempool.c new file mode 100644 index 0000000..065532e --- /dev/null +++ b/libraries/eina/src/lib/eina_mempool.c | |||
@@ -0,0 +1,387 @@ | |||
1 | /* EINA - EFL data type library | ||
2 | * Copyright (C) 2007-2008 Jorge Luis Zapata Muga | ||
3 | * | ||
4 | * This library is free software; you can redistribute it and/or | ||
5 | * modify it under the terms of the GNU Lesser General Public | ||
6 | * License as published by the Free Software Foundation; either | ||
7 | * version 2.1 of the License, or (at your option) any later version. | ||
8 | * | ||
9 | * This library is distributed in the hope that it will be useful, | ||
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
12 | * Lesser General Public License for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU Lesser General Public | ||
15 | * License along with this library; | ||
16 | * if not, see <http://www.gnu.org/licenses/>. | ||
17 | */ | ||
18 | |||
19 | #ifdef HAVE_CONFIG_H | ||
20 | # include "config.h" | ||
21 | #endif | ||
22 | |||
23 | #include <assert.h> | ||
24 | #include <stdlib.h> | ||
25 | #include <stdio.h> | ||
26 | #include <string.h> | ||
27 | |||
28 | #include "eina_config.h" | ||
29 | #include "eina_private.h" | ||
30 | #include "eina_hash.h" | ||
31 | #include "eina_module.h" | ||
32 | #include "eina_log.h" | ||
33 | #include "eina_main.h" | ||
34 | |||
35 | /* undefs EINA_ARG_NONULL() so NULL checks are not compiled out! */ | ||
36 | #include "eina_safety_checks.h" | ||
37 | #include "eina_mempool.h" | ||
38 | |||
39 | /*============================================================================* | ||
40 | * Local * | ||
41 | *============================================================================*/ | ||
42 | |||
43 | /** | ||
44 | * @cond LOCAL | ||
45 | */ | ||
46 | |||
47 | static Eina_Hash *_backends; | ||
48 | static Eina_Array *_modules; | ||
49 | static int _eina_mempool_log_dom = -1; | ||
50 | |||
51 | #ifdef ERR | ||
52 | #undef ERR | ||
53 | #endif | ||
54 | #define ERR(...) EINA_LOG_DOM_ERR(_eina_mempool_log_dom, __VA_ARGS__) | ||
55 | |||
56 | #ifdef DBG | ||
57 | #undef DBG | ||
58 | #endif | ||
59 | #define DBG(...) EINA_LOG_DOM_DBG(_eina_mempool_log_dom, __VA_ARGS__) | ||
60 | |||
61 | |||
62 | static Eina_Mempool * | ||
63 | _new_va(const char *name, | ||
64 | const char *context, | ||
65 | const char *options, | ||
66 | va_list args) | ||
67 | { | ||
68 | Eina_Mempool_Backend *be; | ||
69 | Eina_Mempool *mp; | ||
70 | |||
71 | Eina_Error err = EINA_ERROR_NOT_MEMPOOL_MODULE; | ||
72 | |||
73 | eina_error_set(0); | ||
74 | be = eina_hash_find(_backends, name); | ||
75 | if ((!be) || (!be->init)) | ||
76 | goto on_error; | ||
77 | |||
78 | err = EINA_ERROR_OUT_OF_MEMORY; | ||
79 | mp = calloc(1, sizeof(Eina_Mempool)); | ||
80 | if (!mp) | ||
81 | goto on_error; | ||
82 | |||
83 | /* Work around ABI incompability introduced in Eina 1.1 */ | ||
84 | #define SBP(Property) mp->backend.Property = be->Property; | ||
85 | SBP(name); | ||
86 | SBP(init); | ||
87 | SBP(free); | ||
88 | SBP(alloc); | ||
89 | SBP(realloc); | ||
90 | SBP(garbage_collect); | ||
91 | SBP(statistics); | ||
92 | SBP(shutdown); | ||
93 | #undef SBP | ||
94 | |||
95 | if (be->repack) | ||
96 | { | ||
97 | mp->backend2 = calloc(1, sizeof (Eina_Mempool_Backend_ABI2)); | ||
98 | if (mp->backend2) | ||
99 | mp->backend2->repack = be->repack; | ||
100 | } | ||
101 | |||
102 | mp->backend_data = mp->backend.init(context, options, args); | ||
103 | |||
104 | return mp; | ||
105 | |||
106 | on_error: | ||
107 | eina_error_set(err); | ||
108 | return NULL; | ||
109 | } | ||
110 | |||
111 | /* Built-in backend's prototypes */ | ||
112 | |||
113 | #ifdef EINA_STATIC_BUILD_BUDDY | ||
114 | Eina_Bool buddy_init(void); | ||
115 | void buddy_shutdown(void); | ||
116 | #endif | ||
117 | |||
118 | #ifdef EINA_STATIC_BUILD_CHAINED_POOL | ||
119 | Eina_Bool chained_init(void); | ||
120 | void chained_shutdown(void); | ||
121 | #endif | ||
122 | |||
123 | #ifdef EINA_STATIC_BUILD_EMEMOA_FIXED | ||
124 | Eina_Bool ememoa_fixed_init(void); | ||
125 | void ememoa_fixed_shutdown(void); | ||
126 | #endif | ||
127 | |||
128 | #ifdef EINA_STATIC_BUILD_EMEMOA_UNKNOWN | ||
129 | Eina_Bool ememoa_unknown_init(void); | ||
130 | void ememoa_unknown_shutdown(void); | ||
131 | #endif | ||
132 | |||
133 | #ifdef EINA_STATIC_BUILD_FIXED_BITMAP | ||
134 | Eina_Bool fixed_bitmap_init(void); | ||
135 | void fixed_bitmap_shutdown(void); | ||
136 | #endif | ||
137 | |||
138 | #ifdef EINA_STATIC_BUILD_ONE_BIG | ||
139 | Eina_Bool one_big_init(void); | ||
140 | void one_big_shutdown(void); | ||
141 | #endif | ||
142 | |||
143 | #ifdef EINA_STATIC_BUILD_PASS_THROUGH | ||
144 | Eina_Bool pass_through_init(void); | ||
145 | void pass_through_shutdown(void); | ||
146 | #endif | ||
147 | |||
148 | /** | ||
149 | * @endcond | ||
150 | */ | ||
151 | |||
152 | /*============================================================================* | ||
153 | * Global * | ||
154 | *============================================================================*/ | ||
155 | |||
156 | /** | ||
157 | * @cond LOCAL | ||
158 | */ | ||
159 | |||
160 | EAPI Eina_Error EINA_ERROR_NOT_MEMPOOL_MODULE = 0; | ||
161 | |||
162 | static const char EINA_ERROR_NOT_MEMPOOL_MODULE_STR[] = | ||
163 | "Not a memory pool module."; | ||
164 | |||
165 | /** | ||
166 | * @endcond | ||
167 | */ | ||
168 | |||
169 | EAPI Eina_Bool | ||
170 | eina_mempool_register(Eina_Mempool_Backend *be) | ||
171 | { | ||
172 | EINA_SAFETY_ON_NULL_RETURN_VAL(be, 0); | ||
173 | DBG("be=%p, name=%p", be, be->name); | ||
174 | return eina_hash_add(_backends, be->name, be); | ||
175 | } | ||
176 | |||
177 | EAPI void | ||
178 | eina_mempool_unregister(Eina_Mempool_Backend *be) | ||
179 | { | ||
180 | EINA_SAFETY_ON_NULL_RETURN(be); | ||
181 | DBG("be=%p, name=%p", be, be->name); | ||
182 | eina_hash_del(_backends, be->name, be); | ||
183 | } | ||
184 | |||
185 | Eina_Bool | ||
186 | eina_mempool_init(void) | ||
187 | { | ||
188 | char *path; | ||
189 | |||
190 | _eina_mempool_log_dom = eina_log_domain_register("eina_mempool", | ||
191 | EINA_LOG_COLOR_DEFAULT); | ||
192 | if (_eina_mempool_log_dom < 0) | ||
193 | { | ||
194 | EINA_LOG_ERR("Could not register log domain: eina_mempool"); | ||
195 | return 0; | ||
196 | } | ||
197 | |||
198 | EINA_ERROR_NOT_MEMPOOL_MODULE = eina_error_msg_static_register( | ||
199 | EINA_ERROR_NOT_MEMPOOL_MODULE_STR); | ||
200 | _backends = eina_hash_string_superfast_new(NULL); | ||
201 | |||
202 | /* dynamic backends */ | ||
203 | _modules = eina_module_arch_list_get(NULL, | ||
204 | PACKAGE_LIB_DIR "/eina/modules/mp", | ||
205 | MODULE_ARCH); | ||
206 | |||
207 | path = eina_module_environment_path_get("HOME", "/.eina/mp/modules/mp"); | ||
208 | _modules = eina_module_arch_list_get(_modules, path, MODULE_ARCH); | ||
209 | if (path) | ||
210 | free(path); | ||
211 | |||
212 | path = eina_module_environment_path_get("EINA_MODULES_MEMPOOL_DIR", | ||
213 | "/eina/modules/mp"); | ||
214 | _modules = eina_module_arch_list_get(_modules, path, MODULE_ARCH); | ||
215 | if (path) | ||
216 | free(path); | ||
217 | |||
218 | path = eina_module_symbol_path_get((const void *)eina_init, | ||
219 | "/eina/modules/mp"); | ||
220 | _modules = eina_module_arch_list_get(_modules, path, MODULE_ARCH); | ||
221 | if (path) | ||
222 | free(path); | ||
223 | |||
224 | if (!_modules) | ||
225 | { | ||
226 | ERR("no mempool modules able to be loaded."); | ||
227 | eina_hash_free(_backends); | ||
228 | goto mempool_init_error; | ||
229 | } | ||
230 | |||
231 | eina_module_list_load(_modules); | ||
232 | |||
233 | /* builtin backends */ | ||
234 | #ifdef EINA_STATIC_BUILD_BUDDY | ||
235 | buddy_init(); | ||
236 | #endif | ||
237 | #ifdef EINA_STATIC_BUILD_CHAINED_POOL | ||
238 | chained_init(); | ||
239 | #endif | ||
240 | #ifdef EINA_STATIC_BUILD_EMEMOA_FIXED | ||
241 | ememoa_fixed_init(); | ||
242 | #endif | ||
243 | #ifdef EINA_STATIC_BUILD_EMEMOA_UNKNOWN | ||
244 | ememoa_unknown_init(); | ||
245 | #endif | ||
246 | #ifdef EINA_STATIC_BUILD_FIXED_BITMAP | ||
247 | fixed_bitmap_init(); | ||
248 | #endif | ||
249 | #ifdef EINA_STATIC_BUILD_ONE_BIG | ||
250 | one_big_init(); | ||
251 | #endif | ||
252 | #ifdef EINA_STATIC_BUILD_PASS_THROUGH | ||
253 | pass_through_init(); | ||
254 | #endif | ||
255 | |||
256 | return EINA_TRUE; | ||
257 | |||
258 | mempool_init_error: | ||
259 | eina_log_domain_unregister(_eina_mempool_log_dom); | ||
260 | _eina_mempool_log_dom = -1; | ||
261 | |||
262 | return EINA_FALSE; | ||
263 | } | ||
264 | |||
265 | Eina_Bool | ||
266 | eina_mempool_shutdown(void) | ||
267 | { | ||
268 | /* builtin backends */ | ||
269 | #ifdef EINA_STATIC_BUILD_BUDDY | ||
270 | buddy_shutdown(); | ||
271 | #endif | ||
272 | #ifdef EINA_STATIC_BUILD_CHAINED_POOL | ||
273 | chained_shutdown(); | ||
274 | #endif | ||
275 | #ifdef EINA_STATIC_BUILD_EMEMOA_FIXED | ||
276 | ememoa_fixed_shutdown(); | ||
277 | #endif | ||
278 | #ifdef EINA_STATIC_BUILD_EMEMOA_UNKNOWN | ||
279 | ememoa_unknown_shutdown(); | ||
280 | #endif | ||
281 | #ifdef EINA_STATIC_BUILD_FIXED_BITMAP | ||
282 | fixed_bitmap_shutdown(); | ||
283 | #endif | ||
284 | #ifdef EINA_STATIC_BUILD_ONE_BIG | ||
285 | one_big_shutdown(); | ||
286 | #endif | ||
287 | #ifdef EINA_STATIC_BUILD_PASS_THROUGH | ||
288 | pass_through_shutdown(); | ||
289 | #endif | ||
290 | /* dynamic backends */ | ||
291 | eina_module_list_free(_modules); | ||
292 | if (_modules) | ||
293 | eina_array_free(_modules); | ||
294 | |||
295 | if (_backends) | ||
296 | eina_hash_free(_backends); | ||
297 | |||
298 | eina_log_domain_unregister(_eina_mempool_log_dom); | ||
299 | _eina_mempool_log_dom = -1; | ||
300 | |||
301 | return EINA_TRUE; | ||
302 | } | ||
303 | |||
304 | /*============================================================================* | ||
305 | * API * | ||
306 | *============================================================================*/ | ||
307 | |||
308 | EAPI Eina_Mempool * | ||
309 | eina_mempool_add(const char *name, | ||
310 | const char *context, | ||
311 | const char *options, | ||
312 | ...) | ||
313 | { | ||
314 | Eina_Mempool *mp; | ||
315 | va_list args; | ||
316 | |||
317 | EINA_SAFETY_ON_NULL_RETURN_VAL(name, NULL); | ||
318 | DBG("name=%s, context=%s, options=%s", | ||
319 | name, context ? context : "", options ? options : ""); | ||
320 | |||
321 | va_start(args, options); | ||
322 | mp = _new_va(name, context, options, args); | ||
323 | va_end(args); | ||
324 | |||
325 | DBG("name=%s, context=%s, options=%s, mp=%p", | ||
326 | name, context ? context : "", options ? options : "", mp); | ||
327 | |||
328 | return mp; | ||
329 | } | ||
330 | |||
331 | EAPI void eina_mempool_del(Eina_Mempool *mp) | ||
332 | { | ||
333 | EINA_SAFETY_ON_NULL_RETURN(mp); | ||
334 | EINA_SAFETY_ON_NULL_RETURN(mp->backend.shutdown); | ||
335 | DBG("mp=%p", mp); | ||
336 | mp->backend.shutdown(mp->backend_data); | ||
337 | free(mp->backend2); | ||
338 | free(mp); | ||
339 | } | ||
340 | |||
341 | EAPI void eina_mempool_repack(Eina_Mempool *mp, Eina_Mempool_Repack_Cb cb, void *data) | ||
342 | { | ||
343 | EINA_SAFETY_ON_NULL_RETURN(mp); | ||
344 | EINA_SAFETY_ON_NULL_RETURN(mp->backend2); | ||
345 | EINA_SAFETY_ON_NULL_RETURN(mp->backend2->repack); | ||
346 | DBG("mp=%p", mp); | ||
347 | mp->backend2->repack(mp->backend_data, cb, data); | ||
348 | } | ||
349 | |||
350 | EAPI void eina_mempool_gc(Eina_Mempool *mp) | ||
351 | { | ||
352 | EINA_SAFETY_ON_NULL_RETURN(mp); | ||
353 | EINA_SAFETY_ON_NULL_RETURN(mp->backend.garbage_collect); | ||
354 | DBG("mp=%p", mp); | ||
355 | mp->backend.garbage_collect(mp->backend_data); | ||
356 | } | ||
357 | |||
358 | EAPI void eina_mempool_statistics(Eina_Mempool *mp) | ||
359 | { | ||
360 | EINA_SAFETY_ON_NULL_RETURN(mp); | ||
361 | EINA_SAFETY_ON_NULL_RETURN(mp->backend.statistics); | ||
362 | DBG("mp=%p", mp); | ||
363 | mp->backend.statistics(mp->backend_data); | ||
364 | } | ||
365 | |||
366 | EAPI unsigned int | ||
367 | eina_mempool_alignof(unsigned int size) | ||
368 | { | ||
369 | int align; | ||
370 | |||
371 | if (size <= 2) | ||
372 | align = 2; | ||
373 | else if (size < 8) | ||
374 | align = 4; | ||
375 | else | ||
376 | #if __WORDSIZE == 32 | ||
377 | align = 8; | ||
378 | |||
379 | #else | ||
380 | if (size < 16) | ||
381 | align = 8; | ||
382 | else | ||
383 | align = 16; | ||
384 | #endif | ||
385 | |||
386 | return ((size / align) + 1) * align; | ||
387 | } | ||