CoreFoundation_Prefix.h

   1 /*
   2  * Copyright (c) 2014 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /*      CoreFoundation_Prefix.h
  25         Copyright (c) 2005-2013, Apple Inc. All rights reserved.
  26 */
  27
  28
  29 #define _DARWIN_UNLIMITED_SELECT 1
  30
  31 #include <CoreFoundation/CFBase.h>
  32
  33
  34 #include <stdlib.h>
  35 #include <stdint.h>
  36 #include <string.h>
  37
  38 #if DEPLOYMENT_TARGET_WINDOWS && defined(__cplusplus)
  39 extern "C" {
  40 #endif
  41
  42 #define SystemIntegrityCheck(A, B)      do {} while (0)
  43
  44
  45 #if INCLUDE_OBJC
  46 #include <objc/objc.h>
  47 #else
  48 typedef signed char     BOOL;
  49 typedef char * id;
  50 typedef char * Class;
  51 #define YES (BOOL)1
  52 #define NO (BOOL)0
  53 #define nil NULL
  54 #endif
  55
  56 #define CRSetCrashLogMessage(A) do {} while (0)
  57 #define CRSetCrashLogMessage2(A) do {} while (0)
  58
  59 #if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED || DEPLOYMENT_TARGET_EMBEDDED_MINI
  60 #import <libkern/OSAtomic.h>
  61 #import <pthread.h>
  62 #endif
  63
  64 /* This macro creates some helper functions which are useful in dealing with libdispatch:
  65  *  __ PREFIX Queue -- manages and returns a singleton serial queue
  66  *
  67  * Use the macro like this:
  68  *   DISPATCH_HELPER_FUNCTIONS(fh, NSFileHandle)
  69  */
  70
  71 #define DISPATCH_HELPER_FUNCTIONS(PREFIX, QNAME)                        \
  72 static dispatch_queue_t __ ## PREFIX ## Queue(void) {                   \
  73     static volatile dispatch_queue_t __ ## PREFIX ## dq = NULL;         \
  74     if (!__ ## PREFIX ## dq) {                                          \
  75         dispatch_queue_t dq = dispatch_queue_create(# QNAME, NULL);     \
  76         void * volatile *loc = (void * volatile *)&__ ## PREFIX ## dq;  \
  77         if (!OSAtomicCompareAndSwapPtrBarrier(NULL, dq, loc)) {         \
  78             dispatch_release(dq);                                       \
  79         }                                                               \
  80     }                                                                   \
  81     return __ ## PREFIX ## dq;                                          \
  82 }                                                                       \
  83
  84
  85 #define LIBAUTO_STUB    1
  86
  87 #ifndef LIBAUTO_STUB
  88
  89 #if DEPLOYMENT_TARGET_MACOSX
  90 #include <auto_zone.h>
  91 #endif
  92 #if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED
  93 #include <objc/objc-auto.h>
  94 #endif
  95
  96 #endif // LIBAUTO_STUB
  97
  98 #if DEPLOYMENT_TARGET_WINDOWS
  99 // Compatibility with boolean.h
 100 #if defined(__x86_64__)
 101 typedef unsigned int    boolean_t;
 102 #else
 103 typedef int             boolean_t;
 104 #endif
 105 #endif
 106
 107 #if DEPLOYMENT_TARGET_LINUX
 108
 109 #define CF_PRIVATE
 110 #define __strong
 111 #define __weak
 112
 113 #define strtod_l(a,b,locale) strtod(a,b)
 114 #define strtoul_l(a,b,c,locale) strtoul(a,b,c)
 115 #define strtol_l(a,b,c,locale) strtol(a,b,c)
 116 #define strtoll_l(a,b,c,locale) strtoll(a,b,c)
 117 #define strncasecmp_l(a, b, c, d) strncasecmp(a, b, c)
 118
 119 #define fprintf_l(a,locale,b,...) fprintf(a, b, __VA_ARGS__)
 120
 121 #include <pthread.h>
 122
 123 CF_INLINE size_t
 124 strlcpy(char * dst, const char * src, size_t maxlen) {
 125     const size_t srclen = strlen(src);
 126     if (srclen < maxlen) {
 127         memcpy(dst, src, srclen+1);
 128     } else if (maxlen != 0) {
 129         memcpy(dst, src, maxlen-1);
 130         dst[maxlen-1] = '\0';
 131     }
 132     return srclen;
 133 }
 134
 135 CF_INLINE size_t
 136 strlcat(char * dst, const char * src, size_t maxlen) {
 137     const size_t srclen = strlen(src);
 138     const size_t dstlen = strnlen(dst, maxlen);
 139     if (dstlen == maxlen) return maxlen+srclen;
 140     if (srclen < maxlen-dstlen) {
 141         memcpy(dst+dstlen, src, srclen+1);
 142     } else {
 143         memcpy(dst+dstlen, src, maxlen-dstlen-1);
 144         dst[maxlen-1] = '\0';
 145     }
 146     return dstlen + srclen;
 147 }
 148
 149 #define issetugid() 0
 150
 151 // Implemented in CFPlatform.c
 152 bool OSAtomicCompareAndSwapPtr(void *oldp, void *newp, void *volatile *dst);
 153 bool OSAtomicCompareAndSwapLong(long oldl, long newl, long volatile *dst);
 154 bool OSAtomicCompareAndSwapPtrBarrier(void *oldp, void *newp, void *volatile *dst);
 155 bool OSAtomicCompareAndSwap64Barrier( int64_t __oldValue, int64_t __newValue, volatile int64_t *__theValue );
 156
 157 int32_t OSAtomicDecrement32Barrier(volatile int32_t *dst);
 158 int32_t OSAtomicIncrement32Barrier(volatile int32_t *dst);
 159 int32_t OSAtomicIncrement32(volatile int32_t *theValue);
 160 int32_t OSAtomicDecrement32(volatile int32_t *theValue);
 161
 162 int32_t OSAtomicAdd32( int32_t theAmount, volatile int32_t *theValue );
 163 int32_t OSAtomicAdd32Barrier( int32_t theAmount, volatile int32_t *theValue );
 164 bool OSAtomicCompareAndSwap32Barrier( int32_t oldValue, int32_t newValue, volatile int32_t *theValue );
 165
 166 void OSMemoryBarrier();
 167
 168 #include <malloc.h>
 169 CF_INLINE size_t malloc_size(void *memblock) {
 170     return malloc_usable_size(memblock);
 171 }
 172
 173 // substitute for dispatch_once
 174 typedef pthread_once_t dispatch_once_t;
 175 typedef void (^dispatch_block_t)(void);
 176 void dispatch_once(dispatch_once_t *predicate, dispatch_block_t block);
 177
 178 #endif
 179
 180 #if DEPLOYMENT_TARGET_WINDOWS || DEPLOYMENT_TARGET_LINUX
 181 #if !defined(MIN)
 182 #define MIN(A,B)        ((A) < (B) ? (A) : (B))
 183 #endif
 184
 185 #if !defined(MAX)
 186 #define MAX(A,B)        ((A) > (B) ? (A) : (B))
 187 #endif
 188
 189 #if !defined(ABS)
 190 #define ABS(A)  ((A) < 0 ? (-(A)) : (A))
 191 #endif
 192 #endif
 193
 194 #if DEPLOYMENT_TARGET_WINDOWS
 195
 196 #define MAXPATHLEN MAX_PATH
 197 #undef MAX_PATH
 198 #undef INVALID_HANDLE_VALUE
 199
 200 // Defined for source compatibility
 201 #define ino_t _ino_t
 202 #define off_t _off_t
 203 #define mode_t uint16_t
 204
 205 // This works because things aren't actually exported from the DLL unless they have a __declspec(dllexport) on them... so extern by itself is closest to __private_extern__ on Mac OS
 206 #define CF_PRIVATE extern
 207
 208 #define __builtin_expect(P1,P2) P1
 209
 210 // These are replacements for POSIX calls on Windows, ensuring that the UTF8 parameters are converted to UTF16 before being passed to Windows
 211 CF_EXPORT int _NS_stat(const char *name, struct _stat *st);
 212 CF_EXPORT int _NS_mkdir(const char *name);
 213 CF_EXPORT int _NS_rmdir(const char *name);
 214 CF_EXPORT int _NS_chmod(const char *name, int mode);
 215 CF_EXPORT int _NS_unlink(const char *name);
 216 CF_EXPORT char *_NS_getcwd(char *dstbuf, size_t size);     // Warning: this doesn't support dstbuf as null even though 'getcwd' does
 217 CF_EXPORT char *_NS_getenv(const char *name);
 218 CF_EXPORT int _NS_rename(const char *oldName, const char *newName);
 219 CF_EXPORT int _NS_open(const char *name, int oflag, int pmode = 0);
 220 CF_EXPORT int _NS_chdir(const char *name);
 221 CF_EXPORT int _NS_mkstemp(char *name, int bufSize);
 222 CF_EXPORT int _NS_access(const char *name, int amode);
 223
 224 #define BOOL WINDOWS_BOOL
 225
 226 #define WIN32_LEAN_AND_MEAN
 227
 228 #ifndef WINVER
 229 #define WINVER  0x0501
 230 #endif
 231
 232 #ifndef _WIN32_WINNT
 233 #define _WIN32_WINNT 0x0501
 234 #endif
 235
 236 // The order of these includes is important
 237 #define FD_SETSIZE 1024
 238 #include <winsock2.h>
 239 #include <windows.h>
 240 #include <pthread.h>
 241
 242 #undef BOOL
 243
 244 #ifndef HAVE_STRUCT_TIMESPEC
 245 #define HAVE_STRUCT_TIMESPEC 1
 246 struct timespec {
 247         long tv_sec;
 248         long tv_nsec;
 249 };
 250 #endif /* HAVE_STRUCT_TIMESPEC */
 251
 252 #define __PRETTY_FUNCTION__ __FUNCTION__
 253
 254 #define malloc_default_zone() (void *)0
 255 #define malloc_zone_from_ptr(a) (void *)0
 256 #define malloc_zone_malloc(zone,size) malloc(size)
 257 #define malloc_zone_memalign(zone,align,size) malloc(size)
 258 #define malloc_zone_calloc(zone,count,size) calloc(count,size)
 259 #define bcopy(b1,b2,len) memmove(b2, b1, (size_t)(len))
 260 typedef int malloc_zone_t;
 261 typedef int uid_t;
 262 typedef int gid_t;
 263 #define geteuid() 0
 264 #define getuid() 0
 265 #define getegid() 0
 266
 267 #define scalbn(A, B) _scalb(A, B)
 268
 269 #define fsync(a) _commit(a)
 270 #define malloc_create_zone(a,b) 123
 271 #define malloc_set_zone_name(zone,name)
 272 #define malloc_zone_realloc(zone,ptr,size) realloc(ptr,size)
 273 #define malloc_zone_free(zone,ptr) free(ptr)
 274
 275 // implemented in CFInternal.h
 276 #define OSSpinLockLock(A) __CFSpinLock(A)
 277 #define OSSpinLockUnlock(A) __CFSpinUnlock(A)
 278
 279 typedef int32_t OSSpinLock;
 280
 281 #define OS_SPINLOCK_INIT       0
 282
 283 #include <stdint.h>
 284 #include <stdbool.h>
 285 #include <stdio.h>
 286 #include <malloc.h>
 287
 288 CF_INLINE size_t malloc_size(void *memblock) {
 289     return _msize(memblock);
 290 }
 291
 292 CF_INLINE uint64_t mach_absolute_time() {
 293     LARGE_INTEGER count;
 294     QueryPerformanceCounter(&count);
 295     // mach_absolute_time is unsigned, but this function returns a signed value.
 296     return (uint64_t)count.QuadPart;
 297 }
 298
 299 CF_INLINE long long llabs(long long v) {
 300     if (v < 0) return -v;
 301     return v;
 302 }
 303
 304 #define strtod_l(a,b,locale) strtod(a,b)
 305 #define strtoul_l(a,b,c,locale) strtoul(a,b,c)
 306 #define strtol_l(a,b,c,locale) strtol(a,b,c)
 307 #define strtoll_l(a,b,c,locale) _strtoi64(a,b,c)
 308 #define strncasecmp(a, b, c) _strnicmp(a, b, c)
 309 #define strncasecmp_l(a, b, c, d) _strnicmp(a, b, c)
 310 #define snprintf _snprintf
 311
 312 #define fprintf_l(a,locale,b,...) fprintf(a, b, __VA_ARGS__)
 313
 314 CF_INLINE size_t
 315 strlcpy(char * dst, const char * src, size_t maxlen) {
 316     const size_t srclen = strlen(src);
 317     if (srclen < maxlen) {
 318         memcpy(dst, src, srclen+1);
 319     } else if (maxlen != 0) {
 320         memcpy(dst, src, maxlen-1);
 321         dst[maxlen-1] = '\0';
 322     }
 323     return srclen;
 324 }
 325
 326 CF_INLINE size_t
 327 strlcat(char * dst, const char * src, size_t maxlen) {
 328     const size_t srclen = strlen(src);
 329     const size_t dstlen = strnlen(dst, maxlen);
 330     if (dstlen == maxlen) return maxlen+srclen;
 331     if (srclen < maxlen-dstlen) {
 332         memcpy(dst+dstlen, src, srclen+1);
 333     } else {
 334         memcpy(dst+dstlen, src, maxlen-dstlen-1);
 335         dst[maxlen-1] = '\0';
 336     }
 337     return dstlen + srclen;
 338 }
 339
 340 #define sleep(x) Sleep(1000*x)
 341
 342 #define issetugid() 0
 343
 344 // CF exports these useful atomic operation functions on Windows
 345 CF_EXPORT bool OSAtomicCompareAndSwapPtr(void *oldp, void *newp, void *volatile *dst);
 346 CF_EXPORT bool OSAtomicCompareAndSwapLong(long oldl, long newl, long volatile *dst);
 347 CF_EXPORT bool OSAtomicCompareAndSwapPtrBarrier(void *oldp, void *newp, void *volatile *dst);
 348
 349 CF_EXPORT int32_t OSAtomicDecrement32Barrier(volatile int32_t *dst);
 350 CF_EXPORT int32_t OSAtomicIncrement32Barrier(volatile int32_t *dst);
 351 CF_EXPORT int32_t OSAtomicIncrement32(volatile int32_t *theValue);
 352 CF_EXPORT int32_t OSAtomicDecrement32(volatile int32_t *theValue);
 353
 354 CF_EXPORT int32_t OSAtomicAdd32( int32_t theAmount, volatile int32_t *theValue );
 355 CF_EXPORT int32_t OSAtomicAdd32Barrier( int32_t theAmount, volatile int32_t *theValue );
 356 CF_EXPORT bool OSAtomicCompareAndSwap32Barrier( int32_t oldValue, int32_t newValue, volatile int32_t *theValue );
 357
 358 /*
 359 CF_EXPORT bool OSAtomicCompareAndSwap64( int64_t __oldValue, int64_t __newValue, volatile int64_t *__theValue );
 360 CF_EXPORT bool OSAtomicCompareAndSwap64Barrier( int64_t __oldValue, int64_t __newValue, volatile int64_t *__theValue );
 361
 362 CF_EXPORT int64_t OSAtomicAdd64( int64_t __theAmount, volatile int64_t *__theValue );
 363 CF_EXPORT int64_t OSAtomicAdd64Barrier( int64_t __theAmount, volatile int64_t *__theValue );
 364 */
 365
 366 //#ifndef NTDDI_VERSION
 367 //#define NTDDI_VERSION NTDDI_WINXP
 368 //#endif
 369
 370 #include <io.h>
 371 #include <fcntl.h>
 372 #include <errno.h>
 373
 374 #endif
 375
 376 #if !defined(CF_PRIVATE)
 377 #define CF_PRIVATE __attribute__((__visibility__("hidden")))
 378 #endif
 379
 380 #if DEPLOYMENT_TARGET_LINUX || DEPLOYMENT_TARGET_WINDOWS
 381
 382 #include <stdarg.h>
 383
 384 CF_INLINE int flsl( long mask ) {
 385     int idx = 0;
 386     while (mask != 0) mask = (unsigned long)mask >> 1, idx++;
 387     return idx;
 388 }
 389
 390 CF_INLINE int popcountll(long long x) {
 391     int count = 0;
 392     while (x) {
 393         count++;
 394         x &= x - 1; // reset LS1B
 395     }
 396     return count;
 397 }
 398
 399 CF_PRIVATE int asprintf(char **ret, const char *format, ...);
 400
 401 #endif
 402
 403 #ifdef LIBAUTO_STUB
 404
 405 #include <stddef.h>
 406
 407 /* Stubs for functions in libauto. */
 408
 409 enum {OBJC_GENERATIONAL = (1 << 0)};
 410
 411 enum {
 412     OBJC_RATIO_COLLECTION        = (0 << 0),
 413     OBJC_GENERATIONAL_COLLECTION = (1 << 0),
 414     OBJC_FULL_COLLECTION         = (2 << 0),
 415     OBJC_EXHAUSTIVE_COLLECTION   = (3 << 0),
 416     OBJC_COLLECT_IF_NEEDED       = (1 << 3),
 417     OBJC_WAIT_UNTIL_DONE         = (1 << 4),
 418 };
 419
 420
 421 enum {
 422     AUTO_TYPE_UNKNOWN = -1,
 423     AUTO_UNSCANNED = (1 << 0),
 424     AUTO_OBJECT = (1 << 1),
 425     AUTO_POINTERS_ONLY = (1 << 2),
 426     AUTO_MEMORY_SCANNED = !AUTO_UNSCANNED,
 427     AUTO_MEMORY_UNSCANNED = AUTO_UNSCANNED,
 428     AUTO_MEMORY_ALL_POINTERS = AUTO_POINTERS_ONLY,
 429     AUTO_MEMORY_ALL_WEAK_POINTERS = (AUTO_UNSCANNED | AUTO_POINTERS_ONLY),
 430     AUTO_OBJECT_SCANNED = AUTO_OBJECT,
 431     AUTO_OBJECT_UNSCANNED = AUTO_OBJECT | AUTO_UNSCANNED,
 432     AUTO_OBJECT_ALL_POINTERS = AUTO_OBJECT | AUTO_POINTERS_ONLY
 433 };
 434 typedef unsigned long auto_memory_type_t;
 435 typedef struct _auto_zone_t auto_zone_t;
 436 typedef struct auto_weak_callback_block {
 437     struct auto_weak_callback_block *next;
 438     void (*callback_function)(void *arg1, void *arg2);
 439     void *arg1;
 440     void *arg2;
 441 } auto_weak_callback_block_t;
 442
 443 CF_INLINE void *objc_memmove_collectable(void *a, const void *b, size_t c) { return memmove(a, b, c); }
 444 CF_INLINE void *objc_collectableZone(void) { return 0; }
 445
 446 CF_INLINE void *auto_zone_allocate_object(void *zone, size_t size, auto_memory_type_t type, int rc, int clear) { return 0; }
 447 CF_INLINE const void *auto_zone_base_pointer(void *zone, const void *ptr) { return 0; }
 448 CF_INLINE void auto_zone_set_scan_exactly(void *zone, void *ptr) {}
 449 CF_INLINE void auto_zone_retain(void *zone, void *ptr) {}
 450 CF_INLINE unsigned int auto_zone_release(void *zone, void *ptr) { return 0; }
 451 CF_INLINE unsigned int auto_zone_retain_count(void *zone, const void *ptr) { return 0; }
 452 CF_INLINE void auto_zone_set_unscanned(void *zone, void *ptr) {}
 453 CF_INLINE void auto_zone_set_nofinalize(void *zone, void *ptr) {}
 454 CF_INLINE int auto_zone_is_finalized(void *zone, const void *ptr) { return 0; }
 455 CF_INLINE size_t auto_zone_size(void *zone, const void *ptr) { return 0; }
 456 CF_INLINE void auto_register_weak_reference(void *zone, const void *referent, void **referrer, uintptr_t *counter, void **listHead, void **listElement) {}
 457 CF_INLINE void auto_unregister_weak_reference(void *zone, const void *referent, void **referrer) {}
 458 CF_INLINE int auto_zone_is_valid_pointer(void *zone, const void *ptr) { return 0; }
 459 CF_INLINE BOOL objc_isAuto(id object) { return 0; }
 460 CF_INLINE void* auto_read_weak_reference(void *zone, void **referrer) { void *result = *referrer; return result; }
 461 CF_INLINE void auto_assign_weak_reference(void *zone, const void *value, const void **location, auto_weak_callback_block_t *block) { *location = (void *)value; }
 462 CF_INLINE auto_memory_type_t auto_zone_get_layout_type(void *zone, void *ptr) { return AUTO_UNSCANNED; }
 463 CF_INLINE int auto_zone_set_write_barrier(void *zone, const void *dest, const void *new_value) { return false; }
 464
 465 CF_INLINE void objc_assertRegisteredThreadWithCollector(void) {}
 466 CF_INLINE void objc_registerThreadWithCollector(void) {}
 467
 468 CF_INLINE uintptr_t _object_getExternalHash(id obj) {
 469     return (uintptr_t)obj;
 470 }
 471
 472 // from objc-auto.h
 473
 474 CF_INLINE BOOL objc_atomicCompareAndSwapPtr(id predicate, id replacement, volatile id *objectLocation)
 475 { return OSAtomicCompareAndSwapPtr((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 476
 477 CF_INLINE BOOL objc_atomicCompareAndSwapPtrBarrier(id predicate, id replacement, volatile id *objectLocation)
 478 { return OSAtomicCompareAndSwapPtrBarrier((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 479
 480 CF_INLINE BOOL objc_atomicCompareAndSwapGlobal(id predicate, id replacement, volatile id *objectLocation)
 481 { return OSAtomicCompareAndSwapPtr((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 482
 483 CF_INLINE BOOL objc_atomicCompareAndSwapGlobalBarrier(id predicate, id replacement, volatile id *objectLocation)
 484 { return OSAtomicCompareAndSwapPtrBarrier((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 485
 486 CF_INLINE BOOL objc_atomicCompareAndSwapInstanceVariable(id predicate, id replacement, volatile id *objectLocation)
 487 { return OSAtomicCompareAndSwapPtr((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 488
 489 CF_INLINE BOOL objc_atomicCompareAndSwapInstanceVariableBarrier(id predicate, id replacement, volatile id *objectLocation)
 490 { return OSAtomicCompareAndSwapPtrBarrier((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 491
 492 CF_INLINE id objc_assign_strongCast(id val, id *dest)
 493 { return (*dest = val); }
 494
 495 CF_INLINE id objc_assign_global(id val, id *dest)
 496 { return (*dest = val); }
 497
 498 CF_INLINE id objc_assign_ivar(id val, id dest, ptrdiff_t offset)
 499 { return (*(id*)((char *)dest+offset) = val); }
 500
 501 //CF_INLINE void *objc_memmove_collectable(void *dst, const void *src, size_t size) { return memmove(dst, src, size); }
 502
 503 CF_INLINE id objc_read_weak(id *location)
 504 { return *location; }
 505
 506 CF_INLINE id objc_assign_weak(id value, id *location)
 507 { return (*location = value); }
 508
 509
 510 CF_INLINE void objc_finalizeOnMainThread(Class cls) { }
 511 CF_INLINE BOOL objc_is_finalized(void *ptr) { return NO; }
 512 CF_INLINE void objc_clear_stack(unsigned long options) { }
 513
 514 CF_INLINE BOOL objc_collectingEnabled(void) { return NO; }
 515 CF_INLINE void objc_start_collector_thread(void) { }
 516
 517 CF_INLINE void objc_collect(unsigned long options) { }
 518
 519 #endif
 520
 521 #if DEPLOYMENT_TARGET_WINDOWS && defined(__cplusplus)
 522 } // extern "C"
 523 #endif