include/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 #ifdef __WINE_BASETSD_H
  29 # error You must include port.h before all other headers
  30 #endif
  31
  32 #define _FILE_OFFSET_BITS 64
  33 #define _GNU_SOURCE  /* for pread/pwrite */
  34 #include <fcntl.h>
  35 #include <math.h>
  36 #include <sys/types.h>
  37 #include <sys/stat.h>
  38 #ifdef HAVE_DIRECT_H
  39 # include <direct.h>
  40 #endif
  41 #ifdef HAVE_IO_H
  42 # include <io.h>
  43 #endif
  44 #ifdef HAVE_PROCESS_H
  45 # include <process.h>
  46 #endif
  47 #include <string.h>
  48 #ifdef HAVE_UNISTD_H
  49 # include <unistd.h>
  50 #endif
  51
  52
  53 /****************************************************************
  54  * Type definitions
  55  */
  56
  57 #if !defined(_MSC_VER) && !defined(__int64)
  58 #  if defined(__x86_64__) || defined(_WIN64)
  59 #    define __int64 long
  60 #  else
  61 #    define __int64 long long
  62 #  endif
  63 #endif
  64
  65 #ifndef HAVE_MODE_T
  66 typedef int mode_t;
  67 #endif
  68 #ifndef HAVE_OFF_T
  69 typedef long off_t;
  70 #endif
  71 #ifndef HAVE_PID_T
  72 typedef int pid_t;
  73 #endif
  74 #ifndef HAVE_SIZE_T
  75 typedef unsigned int size_t;
  76 #endif
  77 #ifndef HAVE_SSIZE_T
  78 typedef int ssize_t;
  79 #endif
  80 #ifndef HAVE_FSBLKCNT_T
  81 typedef unsigned long fsblkcnt_t;
  82 #endif
  83 #ifndef HAVE_FSFILCNT_T
  84 typedef unsigned long fsfilcnt_t;
  85 #endif
  86
  87 #ifndef HAVE_STRUCT_STATVFS_F_BLOCKS
  88 struct statvfs
  89 {
  90     unsigned long f_bsize;
  91     unsigned long f_frsize;
  92     fsblkcnt_t    f_blocks;
  93     fsblkcnt_t    f_bfree;
  94     fsblkcnt_t    f_bavail;
  95     fsfilcnt_t    f_files;
  96     fsfilcnt_t    f_ffree;
  97     fsfilcnt_t    f_favail;
  98     unsigned long f_fsid;
  99     unsigned long f_flag;
 100     unsigned long f_namemax;
 101 };
 102 #endif /* HAVE_STRUCT_STATVFS_F_BLOCKS */
 103
 104
 105 /****************************************************************
 106  * Macro definitions
 107  */
 108
 109 #ifdef HAVE_DLFCN_H
 110 #include <dlfcn.h>
 111 #else
 112 #define RTLD_LAZY    0x001
 113 #define RTLD_NOW     0x002
 114 #define RTLD_GLOBAL  0x100
 115 #endif
 116
 117 #ifdef HAVE_ONE_ARG_MKDIR
 118 #define mkdir(path,mode) mkdir(path)
 119 #endif
 120
 121 #if !defined(HAVE_FTRUNCATE) && defined(HAVE_CHSIZE)
 122 #define ftruncate chsize
 123 #endif
 124
 125 #if !defined(HAVE_POPEN) && defined(HAVE__POPEN)
 126 #define popen _popen
 127 #endif
 128
 129 #if !defined(HAVE_PCLOSE) && defined(HAVE__PCLOSE)
 130 #define pclose _pclose
 131 #endif
 132
 133 #if !defined(HAVE_STRDUP) && defined(HAVE__STRDUP)
 134 #define strdup _strdup
 135 #endif
 136
 137 #if !defined(HAVE_SNPRINTF) && defined(HAVE__SNPRINTF)
 138 #define snprintf _snprintf
 139 #endif
 140
 141 #if !defined(HAVE_VSNPRINTF) && defined(HAVE__VSNPRINTF)
 142 #define vsnprintf _vsnprintf
 143 #endif
 144
 145 #if !defined(HAVE_STRTOLL) && defined(HAVE__STRTOI64)
 146 #define strtoll _strtoi64
 147 #endif
 148
 149 #if !defined(HAVE_STRTOULL) && defined(HAVE__STRTOUI64)
 150 #define strtoull _strtoui64
 151 #endif
 152
 153 #ifndef S_ISLNK
 154 # define S_ISLNK(mod) (0)
 155 #endif
 156
 157 #ifndef S_ISSOCK
 158 # define S_ISSOCK(mod) (0)
 159 #endif
 160
 161 #ifndef S_ISDIR
 162 # define S_ISDIR(mod) (((mod) & _S_IFMT) == _S_IFDIR)
 163 #endif
 164
 165 #ifndef S_ISCHR
 166 # define S_ISCHR(mod) (((mod) & _S_IFMT) == _S_IFCHR)
 167 #endif
 168
 169 #ifndef S_ISFIFO
 170 # define S_ISFIFO(mod) (((mod) & _S_IFMT) == _S_IFIFO)
 171 #endif
 172
 173 #ifndef S_ISREG
 174 # define S_ISREG(mod) (((mod) & _S_IFMT) == _S_IFREG)
 175 #endif
 176
 177 /* So we open files in 64 bit access mode on Linux */
 178 #ifndef O_LARGEFILE
 179 # define O_LARGEFILE 0
 180 #endif
 181
 182 #ifndef O_NONBLOCK
 183 # define O_NONBLOCK 0
 184 #endif
 185
 186 #ifndef O_BINARY
 187 # define O_BINARY 0
 188 #endif
 189
 190
 191 /****************************************************************
 192  * Constants
 193  */
 194
 195 #ifndef M_PI
 196 #define M_PI 3.14159265358979323846
 197 #endif
 198
 199 #ifndef M_PI_2
 200 #define M_PI_2 1.570796326794896619
 201 #endif
 202
 203
 204 /* Macros to define assembler functions somewhat portably */
 205
 206 #if defined(__GNUC__) && !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(__APPLE__)
 207 # define __ASM_GLOBAL_FUNC(name,code) \
 208       __asm__( ".text\n\t" \
 209                ".align 4\n\t" \
 210                ".globl " __ASM_NAME(#name) "\n\t" \
 211                __ASM_FUNC(#name) "\n" \
 212                __ASM_NAME(#name) ":\n\t" \
 213                code \
 214                "\n\t.previous" );
 215 #else  /* defined(__GNUC__) && !defined(__MINGW32__) && !defined(__APPLE__)  */
 216 # define __ASM_GLOBAL_FUNC(name,code) \
 217       void __asm_dummy_##name(void) { \
 218           asm( ".align 4\n\t" \
 219                ".globl " __ASM_NAME(#name) "\n\t" \
 220                __ASM_FUNC(#name) "\n" \
 221                __ASM_NAME(#name) ":\n\t" \
 222                code ); \
 223       }
 224 #endif  /* __GNUC__ */
 225
 226
 227 /****************************************************************
 228  * Function definitions (only when using libwine_port)
 229  */
 230
 231 #ifndef NO_LIBWINE_PORT
 232
 233 #ifndef HAVE_FSTATVFS
 234 int fstatvfs( int fd, struct statvfs *buf );
 235 #endif
 236
 237 #ifndef HAVE_GETOPT_LONG
 238 extern char *optarg;
 239 extern int optind;
 240 extern int opterr;
 241 extern int optopt;
 242 struct option;
 243
 244 #ifndef HAVE_STRUCT_OPTION_NAME
 245 struct option
 246 {
 247     const char *name;
 248     int has_arg;
 249     int *flag;
 250     int val;
 251 };
 252 #endif
 253
 254 extern int getopt_long (int ___argc, char *const *___argv,
 255                         const char *__shortopts,
 256                         const struct option *__longopts, int *__longind);
 257 extern int getopt_long_only (int ___argc, char *const *___argv,
 258                              const char *__shortopts,
 259                              const struct option *__longopts, int *__longind);
 260 #endif  /* HAVE_GETOPT_LONG */
 261
 262 #ifndef HAVE_FFS
 263 int ffs( int x );
 264 #endif
 265
 266 #ifndef HAVE_FUTIMES
 267 struct timeval;
 268 int futimes(int fd, const struct timeval *tv);
 269 #endif
 270
 271 #ifndef HAVE_GETPAGESIZE
 272 size_t getpagesize(void);
 273 #endif  /* HAVE_GETPAGESIZE */
 274
 275 #ifndef HAVE_GETTID
 276 pid_t gettid(void);
 277 #endif /* HAVE_GETTID */
 278
 279 #ifndef HAVE_ISINF
 280 int isinf(double x);
 281 #endif
 282
 283 #ifndef HAVE_ISNAN
 284 int isnan(double x);
 285 #endif
 286
 287 #ifndef HAVE_LSTAT
 288 int lstat(const char *file_name, struct stat *buf);
 289 #endif /* HAVE_LSTAT */
 290
 291 #ifndef HAVE_MEMMOVE
 292 void *memmove(void *dest, const void *src, size_t len);
 293 #endif /* !defined(HAVE_MEMMOVE) */
 294
 295 #ifndef HAVE_POLL
 296 struct pollfd
 297 {
 298     int fd;
 299     short events;
 300     short revents;
 301 };
 302 #define POLLIN   0x01
 303 #define POLLPRI  0x02
 304 #define POLLOUT  0x04
 305 #define POLLERR  0x08
 306 #define POLLHUP  0x10
 307 #define POLLNVAL 0x20
 308 int poll( struct pollfd *fds, unsigned int count, int timeout );
 309 #endif /* HAVE_POLL */
 310
 311 #ifndef HAVE_PREAD
 312 ssize_t pread( int fd, void *buf, size_t count, off_t offset );
 313 #endif /* HAVE_PREAD */
 314
 315 #ifndef HAVE_PWRITE
 316 ssize_t pwrite( int fd, const void *buf, size_t count, off_t offset );
 317 #endif /* HAVE_PWRITE */
 318
 319 #ifndef HAVE_READLINK
 320 int readlink( const char *path, char *buf, size_t size );
 321 #endif /* HAVE_READLINK */
 322
 323 #ifndef HAVE_STATVFS
 324 int statvfs( const char *path, struct statvfs *buf );
 325 #endif
 326
 327 #ifndef HAVE_STRNCASECMP
 328 # ifndef HAVE__STRNICMP
 329 int strncasecmp(const char *str1, const char *str2, size_t n);
 330 # else
 331 # define strncasecmp _strnicmp
 332 # endif
 333 #endif /* !defined(HAVE_STRNCASECMP) */
 334
 335 #ifndef HAVE_STRERROR
 336 const char *strerror(int err);
 337 #endif /* !defined(HAVE_STRERROR) */
 338
 339 #ifndef HAVE_STRCASECMP
 340 # ifndef HAVE__STRICMP
 341 int strcasecmp(const char *str1, const char *str2);
 342 # else
 343 # define strcasecmp _stricmp
 344 # endif
 345 #endif /* !defined(HAVE_STRCASECMP) */
 346
 347 #ifndef HAVE_SYMLINK
 348 int symlink(const char *from, const char *to);
 349 #endif
 350
 351 #ifndef HAVE_USLEEP
 352 int usleep (unsigned int useconds);
 353 #endif /* !defined(HAVE_USLEEP) */
 354
 355 #ifdef __i386__
 356 static inline void *memcpy_unaligned( void *dst, const void *src, size_t size )
 357 {
 358     return memcpy( dst, src, size );
 359 }
 360 #else
 361 extern void *memcpy_unaligned( void *dst, const void *src, size_t size );
 362 #endif /* __i386__ */
 363
 364 extern int mkstemps(char *template, int suffix_len);
 365
 366 /* Process creation flags */
 367 #ifndef _P_WAIT
 368 # define _P_WAIT    0
 369 # define _P_NOWAIT  1
 370 # define _P_OVERLAY 2
 371 # define _P_NOWAITO 3
 372 # define _P_DETACH  4
 373 #endif
 374 #ifndef HAVE_SPAWNVP
 375 extern int spawnvp(int mode, const char *cmdname, const char * const argv[]);
 376 #endif
 377
 378 /* Interlocked functions */
 379
 380 #if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
 381
 382 extern inline int interlocked_cmpxchg( int *dest, int xchg, int compare );
 383 extern inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
 384 extern __int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare );
 385 extern inline int interlocked_xchg( int *dest, int val );
 386 extern inline void *interlocked_xchg_ptr( void **dest, void *val );
 387 extern inline int interlocked_xchg_add( int *dest, int incr );
 388
 389 extern inline int interlocked_cmpxchg( int *dest, int xchg, int compare )
 390 {
 391     int ret;
 392     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 393                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 394     return ret;
 395 }
 396
 397 extern inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
 398 {
 399     void *ret;
 400 #ifdef __x86_64__
 401     __asm__ __volatile__( "lock; cmpxchgq %2,(%1)"
 402                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 403 #else
 404     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 405                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 406 #endif
 407     return ret;
 408 }
 409
 410 extern inline int interlocked_xchg( int *dest, int val )
 411 {
 412     int ret;
 413     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 414                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 415     return ret;
 416 }
 417
 418 extern inline void *interlocked_xchg_ptr( void **dest, void *val )
 419 {
 420     void *ret;
 421 #ifdef __x86_64__
 422     __asm__ __volatile__( "lock; xchgq %0,(%1)"
 423                           : "=r" (ret) :"r" (dest), "0" (val) : "memory" );
 424 #else
 425     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 426                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 427 #endif
 428     return ret;
 429 }
 430
 431 extern inline int interlocked_xchg_add( int *dest, int incr )
 432 {
 433     int ret;
 434     __asm__ __volatile__( "lock; xaddl %0,(%1)"
 435                           : "=r" (ret) : "r" (dest), "0" (incr) : "memory" );
 436     return ret;
 437 }
 438
 439 #else  /* __GNUC__ */
 440
 441 extern int interlocked_cmpxchg( int *dest, int xchg, int compare );
 442 extern void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
 443 extern __int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare );
 444 extern int interlocked_xchg( int *dest, int val );
 445 extern void *interlocked_xchg_ptr( void **dest, void *val );
 446 extern int interlocked_xchg_add( int *dest, int incr );
 447
 448 #endif  /* __GNUC__ */
 449
 450 #else /* NO_LIBWINE_PORT */
 451
 452 #define __WINE_NOT_PORTABLE(func) func##_is_not_portable func##_is_not_portable
 453
 454 #define ffs                     __WINE_NOT_PORTABLE(ffs)
 455 #define fstatvfs                __WINE_NOT_PORTABLE(fstatvfs)
 456 #define futimes                 __WINE_NOT_PORTABLE(futimes)
 457 #define getopt_long             __WINE_NOT_PORTABLE(getopt_long)
 458 #define getopt_long_only        __WINE_NOT_PORTABLE(getopt_long_only)
 459 #define getpagesize             __WINE_NOT_PORTABLE(getpagesize)
 460 #define interlocked_cmpxchg     __WINE_NOT_PORTABLE(interlocked_cmpxchg)
 461 #define interlocked_cmpxchg_ptr __WINE_NOT_PORTABLE(interlocked_cmpxchg_ptr)
 462 #define interlocked_xchg        __WINE_NOT_PORTABLE(interlocked_xchg)
 463 #define interlocked_xchg_ptr    __WINE_NOT_PORTABLE(interlocked_xchg_ptr)
 464 #define interlocked_xchg_add    __WINE_NOT_PORTABLE(interlocked_xchg_add)
 465 #define lstat                   __WINE_NOT_PORTABLE(lstat)
 466 #define memcpy_unaligned        __WINE_NOT_PORTABLE(memcpy_unaligned)
 467 #undef memmove
 468 #define memmove                 __WINE_NOT_PORTABLE(memmove)
 469 #define pread                   __WINE_NOT_PORTABLE(pread)
 470 #define pwrite                  __WINE_NOT_PORTABLE(pwrite)
 471 #define spawnvp                 __WINE_NOT_PORTABLE(spawnvp)
 472 #define statvfs                 __WINE_NOT_PORTABLE(statvfs)
 473 #define strcasecmp              __WINE_NOT_PORTABLE(strcasecmp)
 474 #define strerror                __WINE_NOT_PORTABLE(strerror)
 475 #define strncasecmp             __WINE_NOT_PORTABLE(strncasecmp)
 476 #define usleep                  __WINE_NOT_PORTABLE(usleep)
 477
 478 #endif /* NO_LIBWINE_PORT */
 479
 480 #endif /* !defined(__WINE_WINE_PORT_H) */