include/reactos/wine/port.h

   1 /*
   2  * Wine porting definitions
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #ifndef __WINE_WINE_PORT_H
  22 #define __WINE_WINE_PORT_H
  23
  24 #ifndef __WINE_CONFIG_H
  25 # error You must include config.h to use this header
  26 #endif
  27
  28 #ifndef _GNU_SOURCE
  29 # define _GNU_SOURCE  /* for pread/pwrite, isfinite */
  30 #endif
  31 #include <fcntl.h>
  32 #include <math.h>
  33 #include <sys/types.h>
  34 #include <sys/stat.h>
  35 #ifdef HAVE_DIRECT_H
  36 # include <direct.h>
  37 #endif
  38 #ifdef HAVE_IO_H
  39 # include <io.h>
  40 #endif
  41 #ifdef HAVE_PROCESS_H
  42 # include <process.h>
  43 #endif
  44 #include <string.h>
  45 #ifdef HAVE_UNISTD_H
  46 # include <unistd.h>
  47 #endif
  48
  49
  50 /****************************************************************
  51  * Type definitions
  52  */
  53
  54 #if !defined(_MSC_VER) && !defined(__int64)
  55 #  if defined(__x86_64__) || defined(_WIN64)
  56 #    define __int64 long
  57 #  else
  58 #    define __int64 long long
  59 #  endif
  60 #endif
  61
  62 #if !defined(HAVE_MODE_T) && !defined(_MODE_T)
  63 typedef int mode_t;
  64 #endif
  65 #if !defined(HAVE_OFF_T) && !defined(_OFF_T)
  66 typedef long off_t;
  67 #endif
  68 #if !defined(HAVE_PID_T) && !defined(_PID_T)
  69 typedef int pid_t;
  70 #endif
  71 #if !defined(HAVE_SIZE_T) && !defined(_SIZE_T)
  72 typedef unsigned int size_t;
  73 #endif
  74 #if !defined(HAVE_SSIZE_T) && !defined(_SSIZE_T)
  75 typedef int ssize_t;
  76 #endif
  77 //#ifndef HAVE_SOCKLEN_T
  78 //typedef unsigned int socklen_t;
  79 //#endif
  80
  81 #ifndef HAVE_STATFS
  82 # ifdef __BEOS__
  83 #  define HAVE_STRUCT_STATFS_F_BFREE
  84 struct statfs {
  85   long   f_bsize;  /* block_size */
  86   long   f_blocks; /* total_blocks */
  87   long   f_bfree;  /* free_blocks */
  88 };
  89 # else /* defined(__BEOS__) */
  90 struct statfs;
  91 # endif /* defined(__BEOS__) */
  92 #endif /* !defined(HAVE_STATFS) */
  93
  94
  95 /****************************************************************
  96  * Macro definitions
  97  */
  98
  99 #ifdef HAVE_DLFCN_H
 100 #include <dlfcn.h>
 101 #else
 102 #define RTLD_LAZY    0x001
 103 #define RTLD_NOW     0x002
 104 #define RTLD_GLOBAL  0x100
 105 #endif
 106
 107 #if !defined(HAVE_FTRUNCATE) && defined(HAVE_CHSIZE)
 108 #define ftruncate chsize
 109 #endif
 110
 111 #if !defined(HAVE_POPEN) && defined(HAVE__POPEN)
 112 #define popen _popen
 113 #endif
 114
 115 #if !defined(HAVE_PCLOSE) && defined(HAVE__PCLOSE)
 116 #define pclose _pclose
 117 #endif
 118
 119 #if !defined(HAVE_SNPRINTF) && defined(HAVE__SNPRINTF)
 120 #define snprintf _snprintf
 121 #endif
 122
 123 #if !defined(HAVE_VSNPRINTF) && defined(HAVE__VSNPRINTF)
 124 #define vsnprintf _vsnprintf
 125 #endif
 126
 127 #ifndef S_ISLNK
 128 # define S_ISLNK(mod) (0)
 129 #endif /* S_ISLNK */
 130
 131 /* So we open files in 64 bit access mode on Linux */
 132 #ifndef O_LARGEFILE
 133 # define O_LARGEFILE 0
 134 #endif
 135
 136 #ifndef O_BINARY
 137 # define O_BINARY 0
 138 #endif
 139
 140 /****************************************************************
 141  * Constants
 142  */
 143
 144 #ifndef M_PI
 145 #define M_PI 3.14159265358979323846
 146 #endif
 147
 148 #ifndef M_PI_2
 149 #define M_PI_2 1.570796326794896619
 150 #endif
 151
 152 #ifndef M_PI_4
 153 #define M_PI_4 0.785398163397448309616
 154 #endif
 155
 156 #ifndef INFINITY
 157 static inline float __port_infinity(void)
 158 {
 159     static const unsigned __inf_bytes = 0x7f800000;
 160     return *(const float *)&__inf_bytes;
 161 }
 162 #define INFINITY __port_infinity()
 163 #endif
 164
 165 #ifndef NAN
 166 static inline float __port_nan(void)
 167 {
 168     static const unsigned __nan_bytes = 0x7fc00000;
 169     return *(const float *)&__nan_bytes;
 170 }
 171 #define NAN __port_nan()
 172 #endif
 173
 174 /* Constructor functions */
 175
 176 #ifdef _MSC_VER
 177 # define DECL_GLOBAL_CONSTRUCTOR(func) /* nothing */
 178 #elif defined(__GNUC__)
 179 # define DECL_GLOBAL_CONSTRUCTOR(func) \
 180     static void func(void) __attribute__((constructor)); \
 181     static void func(void)
 182 #elif defined(__i386__)
 183 # define DECL_GLOBAL_CONSTRUCTOR(func) \
 184     static void __dummy_init_##func(void) { \
 185         asm(".section .init,\"ax\"\n\t" \
 186             "call " #func "\n\t" \
 187             ".previous"); } \
 188     static void func(void)
 189 #elif defined(__sparc__)
 190 # define DECL_GLOBAL_CONSTRUCTOR(func) \
 191     static void __dummy_init_##func(void) { \
 192         asm("\t.section \".init\",#alloc,#execinstr\n" \
 193             "\tcall " #func "\n" \
 194             "\tnop\n" \
 195             "\t.section \".text\",#alloc,#execinstr\n" ); } \
 196     static void func(void)
 197 #elif defined(_M_AMD64)
 198 #pragma message("You must define the DECL_GLOBAL_CONSTRUCTOR macro for amd64")
 199 #else
 200 # error You must define the DECL_GLOBAL_CONSTRUCTOR macro for your platform
 201 #endif
 202
 203
 204 /* Register functions */
 205
 206 #ifdef __i386__
 207 #define DEFINE_REGS_ENTRYPOINT( name, fn, args, pop_args ) \
 208     __ASM_GLOBAL_FUNC( name, \
 209                        "call " __ASM_NAME("__wine_call_from_32_regs") "\n\t" \
 210                        ".long " __ASM_NAME(#fn) "\n\t" \
 211                        ".byte " #args "," #pop_args )
 212 /* FIXME: add support for other CPUs */
 213 #endif  /* __i386__ */
 214
 215
 216 /****************************************************************
 217  * Function definitions (only when using libwine_port)
 218  */
 219
 220 #ifndef NO_LIBWINE_PORT
 221
 222 #ifndef HAVE_GETOPT_LONG
 223 extern char *optarg;
 224 extern int optind;
 225 extern int opterr;
 226 extern int optopt;
 227 struct option;
 228
 229 #ifndef HAVE_STRUCT_OPTION_NAME
 230 struct option
 231 {
 232     const char *name;
 233     int has_arg;
 234     int *flag;
 235     int val;
 236 };
 237 #endif
 238
 239 extern int getopt_long (int ___argc, char *const *___argv,
 240                         const char *__shortopts,
 241                         const struct option *__longopts, int *__longind);
 242 extern int getopt_long_only (int ___argc, char *const *___argv,
 243                              const char *__shortopts,
 244                              const struct option *__longopts, int *__longind);
 245 #endif  /* HAVE_GETOPT_LONG */
 246
 247 #ifndef HAVE_GETPAGESIZE
 248 size_t getpagesize(void);
 249 #endif  /* HAVE_GETPAGESIZE */
 250
 251 #if !defined(HAVE_ISFINITE) && !defined(isfinite)
 252 int isfinite(double x);
 253 #endif
 254
 255 #if !defined(HAVE_ISINF) && !defined(isinf)
 256 int isinf(double x);
 257 #endif
 258
 259 #if !defined(HAVE_ISNAN) && !defined(isnan)
 260 int isnan(double x);
 261 #endif
 262
 263 #ifndef HAVE_LSTAT
 264 int lstat(const char *file_name, struct stat *buf);
 265 #endif /* HAVE_LSTAT */
 266
 267 #ifndef HAVE_MEMMOVE
 268 void *memmove(void *dest, const void *src, size_t len);
 269 #endif /* !defined(HAVE_MEMMOVE) */
 270
 271 #ifndef __REACTOS__
 272 #ifndef HAVE_PREAD
 273 ssize_t pread( int fd, void *buf, size_t count, off_t offset );
 274 #endif /* HAVE_PREAD */
 275
 276 #ifndef HAVE_PWRITE
 277 ssize_t pwrite( int fd, const void *buf, size_t count, off_t offset );
 278 #endif /* HAVE_PWRITE */
 279 #endif /* __REACTOS__ */
 280
 281 #ifdef WIN32
 282 #ifndef HAVE_SIGSETJMP
 283 # include <setjmp.h>
 284 typedef jmp_buf sigjmp_buf;
 285 int sigsetjmp( sigjmp_buf buf, int savesigs );
 286 void siglongjmp( sigjmp_buf buf, int val );
 287 #endif /* HAVE_SIGSETJMP */
 288 #endif
 289
 290 #ifndef HAVE_STATFS
 291 int statfs(const char *name, struct statfs *info);
 292 #endif /* !defined(HAVE_STATFS) */
 293
 294 #ifndef HAVE_STRNCASECMP
 295 # ifndef HAVE__STRNICMP
 296 int strncasecmp(const char *str1, const char *str2, size_t n);
 297 # else
 298 # define strncasecmp _strnicmp
 299 # endif
 300 #endif /* !defined(HAVE_STRNCASECMP) */
 301
 302 #ifndef HAVE_STRERROR
 303 const char *strerror(int err);
 304 #endif /* !defined(HAVE_STRERROR) */
 305
 306 #ifndef HAVE_STRCASECMP
 307 # ifndef HAVE__STRICMP
 308 int strcasecmp(const char *str1, const char *str2);
 309 # else
 310 # define strcasecmp _stricmp
 311 # endif
 312 #endif /* !defined(HAVE_STRCASECMP) */
 313
 314 #if !defined(HAVE_USLEEP) && !defined(__CYGWIN__)
 315 int usleep (unsigned int useconds);
 316 #endif /* !defined(HAVE_USLEEP) */
 317
 318 #ifdef __i386__
 319 static inline void *memcpy_unaligned( void *dst, const void *src, size_t size )
 320 {
 321     return memcpy( dst, src, size );
 322 }
 323 #else
 324 extern void *memcpy_unaligned( void *dst, const void *src, size_t size );
 325 #endif /* __i386__ */
 326
 327 extern int mkstemps(char *template, int suffix_len);
 328
 329 /* Process creation flags */
 330 #ifndef _P_WAIT
 331 # define _P_WAIT    0
 332 # define _P_NOWAIT  1
 333 # define _P_OVERLAY 2
 334 # define _P_NOWAITO 3
 335 # define _P_DETACH  4
 336 #endif
 337 #ifndef HAVE_SPAWNVP
 338 extern int spawnvp(int mode, const char *cmdname, const char * const argv[]);
 339 #endif
 340
 341 /* Interlocked functions */
 342
 343 #if defined(_MSC_VER) || (defined(__i386__) && defined(__GNUC__) && !defined(WINE_PORT_NO_INTERLOCKED))
 344
 345 #define interlocked_cmpxchg InterlockedCompareExchange
 346 #define interlocked_cmpxchg_ptr InterlockedCompareExchangePtr
 347 #define interlocked_xchg InterlockedExchange
 348 #define interlocked_xchg_ptr InterlockedExchangePtr
 349 #define interlocked_xchg_add InterlockedExchangeAdd
 350
 351
 352 #endif  /* __i386___ && __GNUC__ */
 353
 354 #if defined(_MSC_VER)
 355 __forceinline
 356 int
 357 ffs(int mask)
 358 {
 359     long index;
 360     if (_BitScanForward(&index, mask) == 0) return 0;
 361     return index;
 362 }
 363 #else
 364 #define ffs __builtin_ffs
 365 #endif
 366
 367 #else /* NO_LIBWINE_PORT */
 368
 369 #define __WINE_NOT_PORTABLE(func) func##_is_not_portable func##_is_not_portable
 370
 371 #define getopt_long             __WINE_NOT_PORTABLE(getopt_long)
 372 #define getopt_long_only        __WINE_NOT_PORTABLE(getopt_long_only)
 373 #define getpagesize             __WINE_NOT_PORTABLE(getpagesize)
 374 #define lstat                   __WINE_NOT_PORTABLE(lstat)
 375 #define memcpy_unaligned        __WINE_NOT_PORTABLE(memcpy_unaligned)
 376 #define memmove                 __WINE_NOT_PORTABLE(memmove)
 377 #define pread                   __WINE_NOT_PORTABLE(pread)
 378 #define pwrite                  __WINE_NOT_PORTABLE(pwrite)
 379 #define spawnvp                 __WINE_NOT_PORTABLE(spawnvp)
 380 #define statfs                  __WINE_NOT_PORTABLE(statfs)
 381 #define strcasecmp              __WINE_NOT_PORTABLE(strcasecmp)
 382 #define strerror                __WINE_NOT_PORTABLE(strerror)
 383 #define strncasecmp             __WINE_NOT_PORTABLE(strncasecmp)
 384 #define usleep                  __WINE_NOT_PORTABLE(usleep)
 385
 386 #endif /* NO_LIBWINE_PORT */
 387
 388 #endif /* !defined(__WINE_WINE_PORT_H) */