CoreFoundation_Prefix.h

   1 /*
   2  * Copyright (c) 2012 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) 2005-2012, 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 3 helper functions which are useful in dealing with libdispatch:
  65  *  __ PREFIX SyncDispatchIsSafe  -- returns bool indicating whether calling dispatch_sync() would be safe from self-deadlock
  66  *  __ PREFIX Queue -- manages and returns a singleton serial queue
  67  *
  68  * Use the macro like this:
  69  *   DISPATCH_HELPER_FUNCTIONS(fh, NSFileHandle)
  70  */
  71
  72 #define DISPATCH_HELPER_FUNCTIONS(PREFIX, QNAME)                        \
  73 static Boolean __ ## PREFIX ## SyncDispatchIsSafe(dispatch_queue_t Q) { \
  74     dispatch_queue_t C = dispatch_get_current_queue();                  \
  75     return (!C || Q != C) ? true : false;                               \
  76 }                                                                       \
  77                                                                         \
  78 static dispatch_queue_t __ ## PREFIX ## Queue(void) {                   \
  79     static volatile dispatch_queue_t __ ## PREFIX ## dq = NULL;         \
  80     if (!__ ## PREFIX ## dq) {                                          \
  81         dispatch_queue_t dq = dispatch_queue_create(# QNAME, NULL);     \
  82         void * volatile *loc = (void * volatile *)&__ ## PREFIX ## dq;  \
  83         if (!OSAtomicCompareAndSwapPtrBarrier(NULL, dq, loc)) {         \
  84             dispatch_release(dq);                                       \
  85         }                                                               \
  86     }                                                                   \
  87     return __ ## PREFIX ## dq;                                          \
  88 }                                                                       \
  89
  90
  91 #define LIBAUTO_STUB    1
  92
  93 #ifndef LIBAUTO_STUB
  94
  95 #if DEPLOYMENT_TARGET_MACOSX
  96 #include <auto_zone.h>
  97 #endif
  98 #if DEPLOYMENT_TARGET_MACOSX || DEPLOYMENT_TARGET_EMBEDDED
  99 #include <objc/objc-auto.h>
 100 #endif
 101
 102 #endif // LIBAUTO_STUB
 103
 104 #if DEPLOYMENT_TARGET_WINDOWS
 105 // Compatibility with boolean.h
 106 #if defined(__x86_64__)
 107 typedef unsigned int    boolean_t;
 108 #else
 109 typedef int             boolean_t;
 110 #endif
 111 #endif
 112
 113 #if DEPLOYMENT_TARGET_LINUX
 114
 115 #define __private_extern__
 116 #define __strong
 117 #define __weak
 118
 119 #define strtod_l(a,b,locale) strtod(a,b)
 120 #define strtoul_l(a,b,c,locale) strtoul(a,b,c)
 121 #define strtol_l(a,b,c,locale) strtol(a,b,c)
 122 #define strtoll_l(a,b,c,locale) strtoll(a,b,c)
 123 #define strncasecmp_l(a, b, c, d) strncasecmp(a, b, c)
 124
 125 #define fprintf_l(a,locale,b,...) fprintf(a, b, __VA_ARGS__)
 126
 127 #define strlcat(a,b,c) strncat(a,b,c)
 128 #define strlcpy(a,b,c) strncpy(a,b,c)
 129
 130 #define issetugid() 0
 131
 132 // Implemented in CFPlatform.c
 133 bool OSAtomicCompareAndSwapPtr(void *oldp, void *newp, void *volatile *dst);
 134 bool OSAtomicCompareAndSwapLong(long oldl, long newl, long volatile *dst);
 135 bool OSAtomicCompareAndSwapPtrBarrier(void *oldp, void *newp, void *volatile *dst);
 136
 137 int32_t OSAtomicDecrement32Barrier(volatile int32_t *dst);
 138 int32_t OSAtomicIncrement32Barrier(volatile int32_t *dst);
 139 int32_t OSAtomicIncrement32(volatile int32_t *theValue);
 140 int32_t OSAtomicDecrement32(volatile int32_t *theValue);
 141
 142 int32_t OSAtomicAdd32( int32_t theAmount, volatile int32_t *theValue );
 143 int32_t OSAtomicAdd32Barrier( int32_t theAmount, volatile int32_t *theValue );
 144 bool OSAtomicCompareAndSwap32Barrier( int32_t oldValue, int32_t newValue, volatile int32_t *theValue );
 145
 146 void OSMemoryBarrier();
 147
 148 #include <malloc.h>
 149 CF_INLINE size_t malloc_size(void *memblock) {
 150     return malloc_usable_size(memblock);
 151 }
 152
 153 #endif
 154
 155 #if DEPLOYMENT_TARGET_WINDOWS || DEPLOYMENT_TARGET_LINUX
 156 #if !defined(MIN)
 157 #define MIN(A,B)        ((A) < (B) ? (A) : (B))
 158 #endif
 159
 160 #if !defined(MAX)
 161 #define MAX(A,B)        ((A) > (B) ? (A) : (B))
 162 #endif
 163
 164 #if !defined(ABS)
 165 #define ABS(A)  ((A) < 0 ? (-(A)) : (A))
 166 #endif
 167 #endif
 168
 169 #if DEPLOYMENT_TARGET_WINDOWS
 170
 171 #define MAXPATHLEN MAX_PATH
 172 #undef MAX_PATH
 173 #undef INVALID_HANDLE_VALUE
 174
 175 // Defined for source compatibility
 176 #define ino_t _ino_t
 177 #define off_t _off_t
 178 #define mode_t uint16_t
 179
 180 // 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
 181 #define __private_extern__ extern
 182
 183 #define __builtin_expect(P1,P2) P1
 184
 185 // These are replacements for POSIX calls on Windows, ensuring that the UTF8 parameters are converted to UTF16 before being passed to Windows
 186 CF_EXPORT int _NS_stat(const char *name, struct _stat *st);
 187 CF_EXPORT int _NS_mkdir(const char *name);
 188 CF_EXPORT int _NS_rmdir(const char *name);
 189 CF_EXPORT int _NS_chmod(const char *name, int mode);
 190 CF_EXPORT int _NS_unlink(const char *name);
 191 CF_EXPORT char *_NS_getcwd(char *dstbuf, size_t size);     // Warning: this doesn't support dstbuf as null even though 'getcwd' does
 192 CF_EXPORT char *_NS_getenv(const char *name);
 193 CF_EXPORT int _NS_rename(const char *oldName, const char *newName);
 194 CF_EXPORT int _NS_open(const char *name, int oflag, int pmode = 0);
 195 CF_EXPORT int _NS_chdir(const char *name);
 196 CF_EXPORT int _NS_mkstemp(char *name, int bufSize);
 197 CF_EXPORT int _NS_access(const char *name, int amode);
 198
 199 #define BOOL WINDOWS_BOOL
 200
 201 #define WIN32_LEAN_AND_MEAN
 202
 203 #ifndef WINVER
 204 #define WINVER  0x0501
 205 #endif
 206
 207 #ifndef _WIN32_WINNT
 208 #define _WIN32_WINNT 0x0501
 209 #endif
 210
 211 // The order of these includes is important
 212 #define FD_SETSIZE 1024
 213 #include <winsock2.h>
 214 #include <windows.h>
 215 #include <pthread.h>
 216
 217 #undef BOOL
 218
 219 #ifndef HAVE_STRUCT_TIMESPEC
 220 #define HAVE_STRUCT_TIMESPEC 1
 221 struct timespec {
 222         long tv_sec;
 223         long tv_nsec;
 224 };
 225 #endif /* HAVE_STRUCT_TIMESPEC */
 226
 227 #define __PRETTY_FUNCTION__ __FUNCTION__
 228
 229 #define malloc_default_zone() (void *)0
 230 #define malloc_zone_from_ptr(a) (void *)0
 231 #define malloc_zone_malloc(zone,size) malloc(size)
 232 #define malloc_zone_memalign(zone,align,size) malloc(size)
 233 #define malloc_zone_calloc(zone,count,size) calloc(count,size)
 234 #define bcopy(b1,b2,len) memmove(b2, b1, (size_t)(len))
 235 typedef int malloc_zone_t;
 236 typedef int uid_t;
 237 typedef int gid_t;
 238 #define geteuid() 0
 239 #define getuid() 0
 240 #define getegid() 0
 241
 242 #define fsync(a) _commit(a)
 243 #define malloc_create_zone(a,b) 123
 244 #define malloc_set_zone_name(zone,name)
 245 #define malloc_zone_realloc(zone,ptr,size) realloc(ptr,size)
 246 #define malloc_zone_free(zone,ptr) free(ptr)
 247
 248 // implemented in CFInternal.h
 249 #define OSSpinLockLock(A) __CFSpinLock(A)
 250 #define OSSpinLockUnlock(A) __CFSpinUnlock(A)
 251
 252 typedef int32_t OSSpinLock;
 253
 254 #define OS_SPINLOCK_INIT       0
 255
 256 #include <stdint.h>
 257 #include <stdbool.h>
 258 #include <stdio.h>
 259 #include <malloc.h>
 260
 261 CF_INLINE size_t malloc_size(void *memblock) {
 262     return _msize(memblock);
 263 }
 264
 265 CF_INLINE uint64_t mach_absolute_time() {
 266     LARGE_INTEGER count;
 267     QueryPerformanceCounter(&count);
 268     // mach_absolute_time is unsigned, but this function returns a signed value.
 269     return (uint64_t)count.QuadPart;
 270 }
 271
 272 CF_INLINE long long llabs(long long v) {
 273     if (v < 0) return -v;
 274     return v;
 275 }
 276
 277 #define strtod_l(a,b,locale) strtod(a,b)
 278 #define strtoul_l(a,b,c,locale) strtoul(a,b,c)
 279 #define strtol_l(a,b,c,locale) strtol(a,b,c)
 280 #define strtoll_l(a,b,c,locale) _strtoi64(a,b,c)
 281 #define strncasecmp_l(a, b, c, d) _strnicmp(a, b, c)
 282 #define snprintf _snprintf
 283
 284 #define fprintf_l(a,locale,b,...) fprintf(a, b, __VA_ARGS__)
 285
 286 #define strlcat(a,b,c) strncat(a,b,c)
 287 #define strlcpy(a,b,c) strncpy(a,b,c)
 288
 289 #define sleep(x) Sleep(1000*x)
 290
 291 #define issetugid() 0
 292
 293 // CF exports these useful atomic operation functions on Windows
 294 CF_EXPORT bool OSAtomicCompareAndSwapPtr(void *oldp, void *newp, void *volatile *dst);
 295 CF_EXPORT bool OSAtomicCompareAndSwapLong(long oldl, long newl, long volatile *dst);
 296 CF_EXPORT bool OSAtomicCompareAndSwapPtrBarrier(void *oldp, void *newp, void *volatile *dst);
 297
 298 CF_EXPORT int32_t OSAtomicDecrement32Barrier(volatile int32_t *dst);
 299 CF_EXPORT int32_t OSAtomicIncrement32Barrier(volatile int32_t *dst);
 300 CF_EXPORT int32_t OSAtomicIncrement32(volatile int32_t *theValue);
 301 CF_EXPORT int32_t OSAtomicDecrement32(volatile int32_t *theValue);
 302
 303 CF_EXPORT int32_t OSAtomicAdd32( int32_t theAmount, volatile int32_t *theValue );
 304 CF_EXPORT int32_t OSAtomicAdd32Barrier( int32_t theAmount, volatile int32_t *theValue );
 305 CF_EXPORT bool OSAtomicCompareAndSwap32Barrier( int32_t oldValue, int32_t newValue, volatile int32_t *theValue );
 306
 307 /*
 308 CF_EXPORT bool OSAtomicCompareAndSwap64( int64_t __oldValue, int64_t __newValue, volatile int64_t *__theValue );
 309 CF_EXPORT bool OSAtomicCompareAndSwap64Barrier( int64_t __oldValue, int64_t __newValue, volatile int64_t *__theValue );
 310
 311 CF_EXPORT int64_t OSAtomicAdd64( int64_t __theAmount, volatile int64_t *__theValue );
 312 CF_EXPORT int64_t OSAtomicAdd64Barrier( int64_t __theAmount, volatile int64_t *__theValue );
 313 */
 314
 315 //#ifndef NTDDI_VERSION
 316 //#define NTDDI_VERSION NTDDI_WINXP
 317 //#endif
 318
 319 #include <io.h>
 320 #include <fcntl.h>
 321 #include <errno.h>
 322
 323 #endif
 324
 325 #if DEPLOYMENT_TARGET_LINUX || DEPLOYMENT_TARGET_WINDOWS
 326
 327 #include <stdarg.h>
 328
 329 CF_INLINE int flsl( long mask ) {
 330     int idx = 0;
 331     while (mask != 0) mask = (unsigned long)mask >> 1, idx++;
 332     return idx;
 333 }
 334
 335 CF_INLINE int popcountll(long long x) {
 336     int count = 0;
 337     while (x) {
 338         count++;
 339         x &= x - 1; // reset LS1B
 340     }
 341     return count;
 342 }
 343
 344 __private_extern__ int asprintf(char **ret, const char *format, ...);
 345
 346 #endif
 347
 348 #ifdef LIBAUTO_STUB
 349
 350 #include <stddef.h>
 351
 352 /* Stubs for functions in libauto. */
 353
 354 enum {OBJC_GENERATIONAL = (1 << 0)};
 355
 356 enum {
 357     OBJC_RATIO_COLLECTION        = (0 << 0),
 358     OBJC_GENERATIONAL_COLLECTION = (1 << 0),
 359     OBJC_FULL_COLLECTION         = (2 << 0),
 360     OBJC_EXHAUSTIVE_COLLECTION   = (3 << 0),
 361     OBJC_COLLECT_IF_NEEDED       = (1 << 3),
 362     OBJC_WAIT_UNTIL_DONE         = (1 << 4),
 363 };
 364
 365
 366 enum {
 367     AUTO_TYPE_UNKNOWN = -1,
 368     AUTO_UNSCANNED = (1 << 0),
 369     AUTO_OBJECT = (1 << 1),
 370     AUTO_POINTERS_ONLY = (1 << 2),
 371     AUTO_MEMORY_SCANNED = !AUTO_UNSCANNED,
 372     AUTO_MEMORY_UNSCANNED = AUTO_UNSCANNED,
 373     AUTO_MEMORY_ALL_POINTERS = AUTO_POINTERS_ONLY,
 374     AUTO_MEMORY_ALL_WEAK_POINTERS = (AUTO_UNSCANNED | AUTO_POINTERS_ONLY),
 375     AUTO_OBJECT_SCANNED = AUTO_OBJECT,
 376     AUTO_OBJECT_UNSCANNED = AUTO_OBJECT | AUTO_UNSCANNED,
 377     AUTO_OBJECT_ALL_POINTERS = AUTO_OBJECT | AUTO_POINTERS_ONLY
 378 };
 379 typedef unsigned long auto_memory_type_t;
 380 typedef struct _auto_zone_t auto_zone_t;
 381 typedef struct auto_weak_callback_block {
 382     struct auto_weak_callback_block *next;
 383     void (*callback_function)(void *arg1, void *arg2);
 384     void *arg1;
 385     void *arg2;
 386 } auto_weak_callback_block_t;
 387
 388 CF_INLINE void *objc_memmove_collectable(void *a, const void *b, size_t c) { return memmove(a, b, c); }
 389 CF_INLINE void *objc_collectableZone(void) { return 0; }
 390
 391 CF_INLINE void *auto_zone_allocate_object(void *zone, size_t size, auto_memory_type_t type, int rc, int clear) { return 0; }
 392 CF_INLINE const void *auto_zone_base_pointer(void *zone, const void *ptr) { return 0; }
 393 CF_INLINE void auto_zone_set_scan_exactly(void *zone, void *ptr) {}
 394 CF_INLINE void auto_zone_retain(void *zone, void *ptr) {}
 395 CF_INLINE unsigned int auto_zone_release(void *zone, void *ptr) { return 0; }
 396 CF_INLINE unsigned int auto_zone_retain_count(void *zone, const void *ptr) { return 0; }
 397 CF_INLINE void auto_zone_set_unscanned(void *zone, void *ptr) {}
 398 CF_INLINE void auto_zone_set_nofinalize(void *zone, void *ptr) {}
 399 CF_INLINE int auto_zone_is_finalized(void *zone, const void *ptr) { return 0; }
 400 CF_INLINE size_t auto_zone_size(void *zone, const void *ptr) { return 0; }
 401 CF_INLINE void auto_register_weak_reference(void *zone, const void *referent, void **referrer, uintptr_t *counter, void **listHead, void **listElement) {}
 402 CF_INLINE void auto_unregister_weak_reference(void *zone, const void *referent, void **referrer) {}
 403 CF_INLINE int auto_zone_is_valid_pointer(void *zone, const void *ptr) { return 0; }
 404 CF_INLINE BOOL objc_isAuto(id object) { return 0; }
 405 CF_INLINE void* auto_read_weak_reference(void *zone, void **referrer) { void *result = *referrer; return result; }
 406 CF_INLINE void auto_assign_weak_reference(void *zone, const void *value, const void **location, auto_weak_callback_block_t *block) { *location = (void *)value; }
 407 CF_INLINE auto_memory_type_t auto_zone_get_layout_type(void *zone, void *ptr) { return AUTO_UNSCANNED; }
 408 CF_INLINE int auto_zone_set_write_barrier(void *zone, const void *dest, const void *new_value) { return false; }
 409
 410 CF_INLINE void objc_assertRegisteredThreadWithCollector(void) {}
 411 CF_INLINE void objc_registerThreadWithCollector(void) {}
 412
 413 CF_INLINE uintptr_t _object_getExternalHash(id obj) {
 414     return (uintptr_t)obj;
 415 }
 416
 417 // from objc-auto.h
 418
 419 CF_INLINE BOOL objc_atomicCompareAndSwapPtr(id predicate, id replacement, volatile id *objectLocation)
 420 { return OSAtomicCompareAndSwapPtr((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 421
 422 CF_INLINE BOOL objc_atomicCompareAndSwapPtrBarrier(id predicate, id replacement, volatile id *objectLocation)
 423 { return OSAtomicCompareAndSwapPtrBarrier((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 424
 425 CF_INLINE BOOL objc_atomicCompareAndSwapGlobal(id predicate, id replacement, volatile id *objectLocation)
 426 { return OSAtomicCompareAndSwapPtr((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 427
 428 CF_INLINE BOOL objc_atomicCompareAndSwapGlobalBarrier(id predicate, id replacement, volatile id *objectLocation)
 429 { return OSAtomicCompareAndSwapPtrBarrier((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 430
 431 CF_INLINE BOOL objc_atomicCompareAndSwapInstanceVariable(id predicate, id replacement, volatile id *objectLocation)
 432 { return OSAtomicCompareAndSwapPtr((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 433
 434 CF_INLINE BOOL objc_atomicCompareAndSwapInstanceVariableBarrier(id predicate, id replacement, volatile id *objectLocation)
 435 { return OSAtomicCompareAndSwapPtrBarrier((void *)predicate, (void *)replacement, (void * volatile *)objectLocation); }
 436
 437 CF_INLINE id objc_assign_strongCast(id val, id *dest)
 438 { return (*dest = val); }
 439
 440 CF_INLINE id objc_assign_global(id val, id *dest)
 441 { return (*dest = val); }
 442
 443 CF_INLINE id objc_assign_ivar(id val, id dest, ptrdiff_t offset)
 444 { return (*(id*)((char *)dest+offset) = val); }
 445
 446 //CF_INLINE void *objc_memmove_collectable(void *dst, const void *src, size_t size) { return memmove(dst, src, size); }
 447
 448 CF_INLINE id objc_read_weak(id *location)
 449 { return *location; }
 450
 451 CF_INLINE id objc_assign_weak(id value, id *location)
 452 { return (*location = value); }
 453
 454
 455 CF_INLINE void objc_finalizeOnMainThread(Class cls) { }
 456 CF_INLINE BOOL objc_is_finalized(void *ptr) { return NO; }
 457 CF_INLINE void objc_clear_stack(unsigned long options) { }
 458
 459 CF_INLINE BOOL objc_collectingEnabled(void) { return NO; }
 460 CF_INLINE void objc_start_collector_thread(void) { }
 461
 462 CF_INLINE void objc_collect(unsigned long options) { }
 463
 464 #endif
 465
 466 #if DEPLOYMENT_TARGET_WINDOWS && defined(__cplusplus)
 467 } // extern "C"
 468 #endif