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 8\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(
 219                ".align 8\n\t" \
 220                ".globl " __ASM_NAME(#name) "\n\t" \
 221                __ASM_FUNC(#name) "\n" \
 222                __ASM_NAME(#name) ":\n\t" \
 223                code ); \
 224       }
 225 #endif  /* __GNUC__ */
 226
 227
 228 /****************************************************************
 229  * Function definitions (only when using libwine_port)
 230  */
 231
 232 #ifndef NO_LIBWINE_PORT
 233
 234 #ifndef HAVE_FSTATVFS
 235 int fstatvfs( int fd, struct statvfs *buf );
 236 #endif
 237
 238 #ifndef HAVE_GETOPT_LONG
 239 extern char *optarg;
 240 extern int optind;
 241 extern int opterr;
 242 extern int optopt;
 243 struct option;
 244
 245 #ifndef HAVE_STRUCT_OPTION_NAME
 246 struct option
 247 {
 248     const char *name;
 249     int has_arg;
 250     int *flag;
 251     int val;
 252 };
 253 #endif
 254
 255 extern int getopt_long (int ___argc, char *const *___argv,
 256                         const char *__shortopts,
 257                         const struct option *__longopts, int *__longind);
 258 extern int getopt_long_only (int ___argc, char *const *___argv,
 259                              const char *__shortopts,
 260                              const struct option *__longopts, int *__longind);
 261 #endif  /* HAVE_GETOPT_LONG */
 262
 263 #ifndef HAVE_FFS
 264 int ffs( int x );
 265 #endif
 266
 267 #ifndef HAVE_FUTIMES
 268 struct timeval;
 269 int futimes(int fd, const struct timeval *tv);
 270 #endif
 271
 272 #ifndef HAVE_GETPAGESIZE
 273 size_t getpagesize(void);
 274 #endif  /* HAVE_GETPAGESIZE */
 275
 276 #ifndef HAVE_GETTID
 277 pid_t gettid(void);
 278 #endif /* HAVE_GETTID */
 279
 280 #ifndef HAVE_ISINF
 281 int isinf(double x);
 282 #endif
 283
 284 #ifndef HAVE_ISNAN
 285 int isnan(double x);
 286 #endif
 287
 288 #ifndef HAVE_LSTAT
 289 int lstat(const char *file_name, struct stat *buf);
 290 #endif /* HAVE_LSTAT */
 291
 292 #ifndef HAVE_MEMMOVE
 293 void *memmove(void *dest, const void *src, size_t len);
 294 #endif /* !defined(HAVE_MEMMOVE) */
 295
 296 #ifndef HAVE_POLL
 297 struct pollfd
 298 {
 299     int fd;
 300     short events;
 301     short revents;
 302 };
 303 #define POLLIN   0x01
 304 #define POLLPRI  0x02
 305 #define POLLOUT  0x04
 306 #define POLLERR  0x08
 307 #define POLLHUP  0x10
 308 #define POLLNVAL 0x20
 309 int poll( struct pollfd *fds, unsigned int count, int timeout );
 310 #endif /* HAVE_POLL */
 311
 312 #ifndef HAVE_PREAD
 313 ssize_t pread( int fd, void *buf, size_t count, off_t offset );
 314 #endif /* HAVE_PREAD */
 315
 316 #ifndef HAVE_PWRITE
 317 ssize_t pwrite( int fd, const void *buf, size_t count, off_t offset );
 318 #endif /* HAVE_PWRITE */
 319
 320 #ifndef HAVE_READLINK
 321 int readlink( const char *path, char *buf, size_t size );
 322 #endif /* HAVE_READLINK */
 323
 324 #ifndef HAVE_STATVFS
 325 int statvfs( const char *path, struct statvfs *buf );
 326 #endif
 327
 328 #ifndef HAVE_STRNCASECMP
 329 # ifndef HAVE__STRNICMP
 330 int strncasecmp(const char *str1, const char *str2, size_t n);
 331 # else
 332 # define strncasecmp _strnicmp
 333 # endif
 334 #endif /* !defined(HAVE_STRNCASECMP) */
 335
 336 #ifndef HAVE_STRERROR
 337 const char *strerror(int err);
 338 #endif /* !defined(HAVE_STRERROR) */
 339
 340 #ifndef HAVE_STRCASECMP
 341 # ifndef HAVE__STRICMP
 342 int strcasecmp(const char *str1, const char *str2);
 343 # else
 344 # define strcasecmp _stricmp
 345 # endif
 346 #endif /* !defined(HAVE_STRCASECMP) */
 347
 348 #ifndef HAVE_SYMLINK
 349 int symlink(const char *from, const char *to);
 350 #endif
 351
 352 #ifndef HAVE_USLEEP
 353 int usleep (unsigned int useconds);
 354 #endif /* !defined(HAVE_USLEEP) */
 355
 356 #ifdef __i386__
 357 static inline void *memcpy_unaligned( void *dst, const void *src, size_t size )
 358 {
 359     return memcpy( dst, src, size );
 360 }
 361 #else
 362 extern void *memcpy_unaligned( void *dst, const void *src, size_t size );
 363 #endif /* __i386__ */
 364
 365 extern int mkstemps(char *template, int suffix_len);
 366
 367 /* Process creation flags */
 368 #ifndef _P_WAIT
 369 # define _P_WAIT    0
 370 # define _P_NOWAIT  1
 371 # define _P_OVERLAY 2
 372 # define _P_NOWAITO 3
 373 # define _P_DETACH  4
 374 #endif
 375 #ifndef HAVE_SPAWNVP
 376 extern int spawnvp(int mode, const char *cmdname, const char * const argv[]);
 377 #endif
 378
 379 /* Interlocked functions */
 380
 381 #if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
 382
 383 extern inline int interlocked_cmpxchg( int *dest, int xchg, int compare );
 384 extern inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
 385 extern __int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare );
 386 extern inline int interlocked_xchg( int *dest, int val );
 387 extern inline void *interlocked_xchg_ptr( void **dest, void *val );
 388 extern inline int interlocked_xchg_add( int *dest, int incr );
 389
 390 extern inline int interlocked_cmpxchg( int *dest, int xchg, int compare )
 391 {
 392     int ret;
 393     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 394                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 395     return ret;
 396 }
 397
 398 extern inline void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare )
 399 {
 400     void *ret;
 401 #ifdef __x86_64__
 402     __asm__ __volatile__( "lock; cmpxchgq %2,(%1)"
 403                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 404 #else
 405     __asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
 406                           : "=a" (ret) : "r" (dest), "r" (xchg), "0" (compare) : "memory" );
 407 #endif
 408     return ret;
 409 }
 410
 411 extern inline int interlocked_xchg( int *dest, int val )
 412 {
 413     int ret;
 414     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 415                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 416     return ret;
 417 }
 418
 419 extern inline void *interlocked_xchg_ptr( void **dest, void *val )
 420 {
 421     void *ret;
 422 #ifdef __x86_64__
 423     __asm__ __volatile__( "lock; xchgq %0,(%1)"
 424                           : "=r" (ret) :"r" (dest), "0" (val) : "memory" );
 425 #else
 426     __asm__ __volatile__( "lock; xchgl %0,(%1)"
 427                           : "=r" (ret) : "r" (dest), "0" (val) : "memory" );
 428 #endif
 429     return ret;
 430 }
 431
 432 extern inline int interlocked_xchg_add( int *dest, int incr )
 433 {
 434     int ret;
 435     __asm__ __volatile__( "lock; xaddl %0,(%1)"
 436                           : "=r" (ret) : "r" (dest), "0" (incr) : "memory" );
 437     return ret;
 438 }
 439
 440 #else  /* __GNUC__ */
 441
 442 extern int interlocked_cmpxchg( int *dest, int xchg, int compare );
 443 extern void *interlocked_cmpxchg_ptr( void **dest, void *xchg, void *compare );
 444 extern __int64 interlocked_cmpxchg64( __int64 *dest, __int64 xchg, __int64 compare );
 445 extern int interlocked_xchg( int *dest, int val );
 446 extern void *interlocked_xchg_ptr( void **dest, void *val );
 447 extern int interlocked_xchg_add( int *dest, int incr );
 448
 449 #endif  /* __GNUC__ */
 450
 451 #else /* NO_LIBWINE_PORT */
 452
 453 #define __WINE_NOT_PORTABLE(func) func##_is_not_portable func##_is_not_portable
 454
 455 #define ffs                     __WINE_NOT_PORTABLE(ffs)
 456 #define fstatvfs                __WINE_NOT_PORTABLE(fstatvfs)
 457 #define futimes                 __WINE_NOT_PORTABLE(futimes)
 458 #define getopt_long             __WINE_NOT_PORTABLE(getopt_long)
 459 #define getopt_long_only        __WINE_NOT_PORTABLE(getopt_long_only)
 460 #define getpagesize             __WINE_NOT_PORTABLE(getpagesize)
 461 #define interlocked_cmpxchg     __WINE_NOT_PORTABLE(interlocked_cmpxchg)
 462 #define interlocked_cmpxchg_ptr __WINE_NOT_PORTABLE(interlocked_cmpxchg_ptr)
 463 #define interlocked_xchg        __WINE_NOT_PORTABLE(interlocked_xchg)
 464 #define interlocked_xchg_ptr    __WINE_NOT_PORTABLE(interlocked_xchg_ptr)
 465 #define interlocked_xchg_add    __WINE_NOT_PORTABLE(interlocked_xchg_add)
 466 #define lstat                   __WINE_NOT_PORTABLE(lstat)
 467 #define memcpy_unaligned        __WINE_NOT_PORTABLE(memcpy_unaligned)
 468 #undef memmove
 469 #define memmove                 __WINE_NOT_PORTABLE(memmove)
 470 #define pread                   __WINE_NOT_PORTABLE(pread)
 471 #define pwrite                  __WINE_NOT_PORTABLE(pwrite)
 472 #define spawnvp                 __WINE_NOT_PORTABLE(spawnvp)
 473 #define statvfs                 __WINE_NOT_PORTABLE(statvfs)
 474 #define strcasecmp              __WINE_NOT_PORTABLE(strcasecmp)
 475 #define strerror                __WINE_NOT_PORTABLE(strerror)
 476 #define strncasecmp             __WINE_NOT_PORTABLE(strncasecmp)
 477 #define usleep                  __WINE_NOT_PORTABLE(usleep)
 478
 479 #endif /* NO_LIBWINE_PORT */
 480
 481 #endif /* !defined(__WINE_WINE_PORT_H) */