Differences From Artifact [1ab2516eb4]:
- File src/OFObject.m — part of check-in [e73e76e40f] at 2009-03-04 20:49:21 on branch trunk — - release should not be chained, might be free'd. Therefore return void. (user: js, size: 5006) [annotate] [blame] [check-ins using]
To Artifact [fd94d50205]:
- File
src/OFObject.m
— part of check-in
[cbdd534337]
at
2009-04-12 14:51:00
on branch trunk
— Get rid of the dependency on Object.
This allows libobjfw to run on ObjC2-only runtimes like the one on the
iPhone. However, it's still relying on objc_msgSendv for plugins, which
is unavailable in ObjC2-only runtimes, thus OFPlugins are unavailable
on the iPhone until I write a replacement for objc_msgSendv. (user: js, size: 9317) [annotate] [blame] [check-ins using]
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | /* * Copyright (c) 2008 - 2009 * Jonathan Schleifer <js@webkeks.org> * * All rights reserved. * * This file is part of libobjfw. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE included in * the packaging of this file. */ #import "config.h" #include <stdlib.h> #include <string.h> #include <limits.h> #import "OFObject.h" #import "OFAutoreleasePool.h" #import "OFExceptions.h" #import "OFMacros.h" @implementation OFObject - init { | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > < < < | | > > | | > | > > > | | > > | > > > > > | | | > > > > > > > > > > > > > > > > > > > > > > > | < | > | > > > > > | > > > | > < | | | > < | | > | > > > > | > > | > > > > | > > | | | | | | | | | | | | | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 | /* * Copyright (c) 2008 - 2009 * Jonathan Schleifer <js@webkeks.org> * * All rights reserved. * * This file is part of libobjfw. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE included in * the packaging of this file. */ /* * Get rid of the stupid warnings until we have our own implementation for * objc_msgSendv. */ #define OBJC2_UNAVAILABLE #import "config.h" #include <stdlib.h> #include <string.h> #include <limits.h> #import "OFObject.h" #import "OFAutoreleasePool.h" #import "OFExceptions.h" #import "OFMacros.h" #import <objc/objc-api.h> #ifndef __objc_INCLUDE_GNU #import <objc/runtime.h> #endif struct pre_ivar { void **memchunks; size_t memchunks_size; size_t retain_count; }; /* Hopefully no arch needs more than 16 bytes padding */ #define PRE_IVAR_ALIGN ((sizeof(struct pre_ivar) + 15) & ~15) #define PRE_IVAR ((struct pre_ivar*)((char*)self - PRE_IVAR_ALIGN)) @implementation OFObject #ifndef __objc_INCLUDE_GNU + load { return self; } #endif + initialize { return self; } + alloc { OFObject *instance; #ifdef __objc_INCLUDE_GNU size_t isize = class_get_instance_size(self); #else size_t isize = class_getInstanceSize(self); #endif if ((instance = malloc(isize + PRE_IVAR_ALIGN)) == NULL) return nil; ((struct pre_ivar*)instance)->memchunks = NULL; ((struct pre_ivar*)instance)->memchunks_size = 0; ((struct pre_ivar*)instance)->retain_count = 1; instance = (OFObject*)((char*)instance + PRE_IVAR_ALIGN); memset(instance, 0, isize); instance->isa = self; return instance; } + new { return [[self alloc] init]; } + (Class)class { return self; } + (const char*)name { #ifdef __objc_INCLUDE_GNU return class_get_class_name(self); #else return class_getName(self); #endif } + (IMP)replaceMethod: (SEL)selector withMethodFromClass: (Class)class; { #ifdef __objc_INCLUDE_GNU Method_t method = class_get_instance_method(self, selector); IMP oldimp, newimp; if (method == NULL) @throw [OFInvalidArgumentException newWithClass: self andSelector: _cmd]; oldimp = method_get_imp(method); newimp = method_get_imp(class_get_instance_method(class, selector)); if (oldimp == (IMP)0 || newimp == (IMP)0) @throw [OFInvalidArgumentException newWithClass: self andSelector: _cmd]; method->method_imp = newimp; return oldimp; #else IMP imp = class_getMethodImplementation(class, selector); Method method = class_getInstanceMethod(self, selector); if (imp == NULL || method == NULL) @throw [OFInvalidArgumentException newWithClass: self andSelector: _cmd]; return method_setImplementation(method, imp); #endif } - init { return self; } - (Class)class { return isa; } - (const char*)name { #ifdef __objc_INCLUDE_GNU return object_get_class_name(self); #else return class_getName(isa); #endif } - (BOOL)isKindOf: (Class)class { Class iter; #ifdef __objc_INCLUDE_GNU for (iter = isa; iter != Nil; iter = class_get_super_class(iter)) #else for (iter = isa; iter != Nil; iter = class_getSuperclass(iter)) #endif if (iter == class) return YES; return NO; } - (BOOL)respondsTo: (SEL)selector { #ifdef __objc_INCLUDE_GNU if (object_is_instance(self)) return class_get_instance_method(isa, selector) != METHOD_NULL; else return class_get_class_method(isa, selector) != METHOD_NULL; #else return class_respondsToSelector(isa, selector); #endif } - (IMP)methodFor: (SEL)selector { #ifdef __objc_INCLUDE_GNU if (object_is_instance(self)) return method_get_imp(class_get_instance_method(isa, selector)); else return method_get_imp(class_get_class_method(isa, selector)); #else return class_getMethodImplementation(isa, selector); #endif } #ifdef __objc_INCLUDE_GNU - (retval_t)forward: (SEL)selector : (arglist_t)args #else - (id)forward: (SEL)selector : (marg_list)args #endif { @throw [OFNotImplementedException newWithClass: [self class] andSelector: _cmd]; return self; } #ifdef __objc_INCLUDE_GNU - (retval_t)performv: (SEL)selector : (arglist_t)args { return objc_msg_sendv(self, selector, args); } #else - performv: (SEL)selector : (marg_list)args { #if !__OBJC2__ Method method; unsigned size; if ((method = class_getInstanceMethod(isa, selector)) != NULL) size = method_getSizeOfArguments(method); else size = 0; if (!size) return [self forward: selector : args]; return objc_msgSendv(self, selector, size, args); #else #warning ObjC2 removed objc_msgSendv and there is #warning no own implementation for it yet! return nil; #endif } #endif - (BOOL)isEqual: (id)obj { /* Classes containing data should reimplement this! */ return (self == obj ? YES : NO); } - (uint32_t)hash { /* Classes containing data should reimplement this! */ return (uint32_t)self; } - addToMemoryPool: (void*)ptr { void **memchunks; size_t memchunks_size; memchunks_size = PRE_IVAR->memchunks_size + 1; if (SIZE_MAX - PRE_IVAR->memchunks_size < 1 || memchunks_size > SIZE_MAX / sizeof(void*)) @throw [OFOutOfRangeException newWithClass: [self class]]; if ((memchunks = realloc(PRE_IVAR->memchunks, memchunks_size * sizeof(void*))) == NULL) @throw [OFNoMemException newWithClass: [self class] andSize: memchunks_size]; PRE_IVAR->memchunks = memchunks; PRE_IVAR->memchunks[PRE_IVAR->memchunks_size] = ptr; PRE_IVAR->memchunks_size = memchunks_size; return self; } - (void*)getMemWithSize: (size_t)size { void *ptr, **memchunks; size_t memchunks_size; if (size == 0) return NULL; memchunks_size = PRE_IVAR->memchunks_size + 1; if (SIZE_MAX - PRE_IVAR->memchunks_size == 0 || memchunks_size > SIZE_MAX / sizeof(void*)) @throw [OFOutOfRangeException newWithClass: [self class]]; if ((ptr = malloc(size)) == NULL) @throw [OFNoMemException newWithClass: [self class] andSize: size]; if ((memchunks = realloc(PRE_IVAR->memchunks, memchunks_size * sizeof(void*))) == NULL) { free(ptr); @throw [OFNoMemException newWithClass: [self class] andSize: memchunks_size]; } PRE_IVAR->memchunks = memchunks; PRE_IVAR->memchunks[PRE_IVAR->memchunks_size] = ptr; PRE_IVAR->memchunks_size = memchunks_size; return ptr; } - (void*)getMemForNItems: (size_t)nitems ofSize: (size_t)size { |
︙ | ︙ | |||
158 159 160 161 162 163 164 | return [self getMemWithSize: size]; if (size == 0) { [self freeMem: ptr]; return NULL; } | | | | 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 | return [self getMemWithSize: size]; if (size == 0) { [self freeMem: ptr]; return NULL; } iter = PRE_IVAR->memchunks + PRE_IVAR->memchunks_size; while (iter-- > PRE_IVAR->memchunks) { if (OF_UNLIKELY(*iter == ptr)) { if (OF_UNLIKELY((ptr = realloc(ptr, size)) == NULL)) @throw [OFNoMemException newWithClass: [self class] andSize: size]; *iter = ptr; |
︙ | ︙ | |||
205 206 207 208 209 210 211 | } - freeMem: (void*)ptr; { void **iter, *last, **memchunks; size_t i, memchunks_size; | | | | | | | | | | | > | | | | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 | } - freeMem: (void*)ptr; { void **iter, *last, **memchunks; size_t i, memchunks_size; iter = PRE_IVAR->memchunks + PRE_IVAR->memchunks_size; i = PRE_IVAR->memchunks_size; while (iter-- > PRE_IVAR->memchunks) { i--; if (OF_UNLIKELY(*iter == ptr)) { memchunks_size = PRE_IVAR->memchunks_size - 1; last = PRE_IVAR->memchunks[memchunks_size]; if (OF_UNLIKELY(PRE_IVAR->memchunks_size == 0 || memchunks_size > SIZE_MAX / sizeof(void*))) @throw [OFOutOfRangeException newWithClass: [self class]]; if (OF_UNLIKELY(memchunks_size == 0)) { free(ptr); free(PRE_IVAR->memchunks); PRE_IVAR->memchunks = NULL; PRE_IVAR->memchunks_size = 0; return self; } if (OF_UNLIKELY((memchunks = realloc( PRE_IVAR->memchunks, memchunks_size * sizeof(void*))) == NULL)) @throw [OFNoMemException newWithClass: [self class] andSize: memchunks_size]; free(ptr); PRE_IVAR->memchunks = memchunks; PRE_IVAR->memchunks[i] = last; PRE_IVAR->memchunks_size = memchunks_size; return self; } } @throw [OFMemNotPartOfObjException newWithClass: [self class] andPointer: ptr]; return self; /* never reached, but makes gcc happy */ } - retain { PRE_IVAR->retain_count++; return self; } - autorelease { [OFAutoreleasePool addToPool: self]; return self; } - (size_t)retainCount { return PRE_IVAR->retain_count; } - (void)release { if (!--PRE_IVAR->retain_count) [self free]; } - free { void **iter = PRE_IVAR->memchunks + PRE_IVAR->memchunks_size; while (iter-- > PRE_IVAR->memchunks) free(*iter); if (PRE_IVAR->memchunks != NULL) free(PRE_IVAR->memchunks); free((char*)self - PRE_IVAR_ALIGN); return nil; } @end |