nsprpub/pr/include/md/_win16.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is the Netscape Portable Runtime (NSPR).
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998-2000
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the MPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #ifndef nspr_win16_defs_h___
  39 #define nspr_win16_defs_h___
  40
  41 #include <windows.h>
  42 #include <winsock.h>
  43 #include <errno.h>
  44 #include <direct.h>
  45
  46 #include "nspr.h"
  47 /* $$ fix this */
  48 #define Remind(x)
  49
  50 /*
  51  * Internal configuration macros
  52  */
  53
  54 #define PR_LINKER_ARCH      "win16"
  55 #define _PR_SI_SYSNAME        "WIN16"
  56 #define _PR_SI_ARCHITECTURE   "x86"    /* XXXMB hardcode for now */
  57
  58 #define HAVE_DLL
  59 #define _PR_NO_PREEMPT
  60 #define _PR_LOCAL_THREADS_ONLY
  61 #undef  _PR_GLOBAL_THREADS_ONLY
  62 #undef  HAVE_THREAD_AFFINITY
  63 #define _PR_HAVE_ATOMIC_OPS
  64
  65 /* --- Common User-Thread/Native-Thread Definitions --------------------- */
  66
  67 extern struct PRLock        *_pr_schedLock;
  68 extern char                 * _pr_top_of_task_stack;
  69
  70
  71 /* --- Typedefs --- */
  72
  73 #define PR_NUM_GCREGS           9
  74 typedef PRInt32                PR_CONTEXT_TYPE[PR_NUM_GCREGS];
  75
  76 #define _MD_MAGIC_THREAD        0x22222222
  77 #define _MD_MAGIC_THREADSTACK   0x33333333
  78 #define _MD_MAGIC_SEGMENT       0x44444444
  79 #define _MD_MAGIC_DIR           0x55555555
  80 #define _MD_MAGIC_CV        0x66666666
  81
  82
  83 typedef struct _PRWin16PollDesc
  84 {
  85         PRInt32 osfd;
  86         PRInt16 in_flags;
  87         PRInt16 out_flags;
  88 } _PRWin16PollDesc;
  89
  90 typedef struct PRPollQueue
  91 {
  92     PRCList links;              /* for linking PRPollQueue's together */
  93     _PRWin16PollDesc *pds;      /* array of poll descriptors */
  94     PRUintn npds;                               /* length of the array */
  95     PRPackedBool on_ioq;        /* is this on the async i/o work q? */
  96     PRIntervalTime timeout;     /* timeout, in ticks */
  97     struct PRThread *thr;
  98 } PRPollQueue;
  99
 100 #define _PR_POLLQUEUE_PTR(_qp) \
 101     ((PRPollQueue *) ((char*) (_qp) - offsetof(PRPollQueue,links)))
 102
 103 NSPR_API(PRInt32) _PR_WaitForFD(PRInt32 osfd, PRUintn how,
 104                                         PRIntervalTime timeout);
 105 NSPR_API(void) _PR_Unblock_IO_Wait(struct PRThread *thr);
 106
 107 #define _PR_MD_MAX_OSFD             FD_SETSIZE
 108 #define _PR_IOQ(_cpu)                           ((_cpu)->md.ioQ)
 109 #define _PR_ADD_TO_IOQ(_pq, _cpu)       PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
 110 #define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.fd_read_set)
 111 #define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.fd_read_cnt)
 112 #define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.fd_write_set)
 113 #define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.fd_write_cnt)
 114 #define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.fd_exception_set)
 115 #define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.fd_exception_cnt)
 116 #define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.ioq_timeout)
 117 #define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.ioq_max_osfd)
 118
 119 struct _MDCPU {
 120     PRCList             ioQ;
 121     fd_set              fd_read_set, fd_write_set, fd_exception_set;
 122     PRInt16             fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
 123                                 fd_exception_cnt[_PR_MD_MAX_OSFD];
 124     PRUint32    ioq_timeout;
 125     PRInt32             ioq_max_osfd;
 126 };
 127
 128 struct _MDThread {
 129     /* The overlapped structure must be first! */
 130     HANDLE           blocked_sema;      /* Threads block on this when waiting
 131                                          * for IO or CondVar.
 132                                          */
 133     PRInt32         errcode;        /* preserved errno for this thread */
 134     CATCHBUF        context;        /* thread context for Throw() */
 135     void           *SP;             /* Stack pointer, used only by GarbColl */
 136     int             threadNumber;   /* instrumentation: order of creation */
 137         _PRWin16PollDesc thr_pd;       /* poll descriptor for i/o */
 138         PRPollQueue             thr_pq;        /* i/o parameters                        */
 139     void           *exceptionContext; /* mfc exception context */
 140     char            guardBand[24];  /* don't overwrite this */
 141     PRUint32        magic;          /* self identifier, for debug */
 142 };
 143
 144 struct _MDThreadStack {
 145     PRUint32           magic;          /* for debugging */
 146     PRIntn          cxByteCount;    /* number of stack bytes to move */
 147     char *          stackTop;       /* high address on stack */
 148 };
 149
 150 struct _MDSegment {
 151     PRUint32           magic;          /* for debugging */
 152 };
 153
 154
 155 struct _MDLock {
 156     PRUint32           magic;          /* for debugging */
 157     PRUint32           mutex;
 158 };
 159
 160 struct _MDDir {
 161     PRUint32         magic;          /* for debugging */
 162     struct  dirent  *dir;
 163 };
 164
 165 struct _MDCVar {
 166         PRUint32        magic;
 167 };
 168
 169 struct _MDSemaphore {
 170         PRInt32                 unused;
 171 };
 172
 173 struct _MDFileDesc {
 174     PRInt32 osfd;
 175 };
 176
 177 struct _MDProcess {
 178     HANDLE handle;
 179     DWORD id;
 180 };
 181
 182 /*
 183 ** Microsoft 'struct _stat'
 184 ** ... taken directly from msvc 1.52c's header file sys/stat.h
 185 ** see PR_Stat() implemented in w16io.c
 186 ** See BugSplat: 98516
 187 */
 188 #pragma pack(push)
 189 #pragma pack(2)
 190
 191 typedef unsigned short _ino_t;
 192 typedef short _dev_t;
 193 typedef long _off_t;
 194
 195 typedef struct _MDMSStat {
 196     _dev_t st_dev;
 197     _ino_t st_ino;
 198     unsigned short st_mode;
 199     short st_nlink;
 200     short st_uid;
 201     short st_gid;
 202     _dev_t st_rdev;
 203     _off_t st_size;
 204     time_t st_atime;
 205     time_t st_mtime;
 206     time_t st_ctime;
 207 } _MDMSStat;
 208 #pragma pack(pop)
 209
 210 /* --- Errors --- */
 211     /* These are NSPR generated error codes which need to be unique from
 212      * OS error codes.
 213      */
 214 #define _MD_UNIQUEBASE                 50000
 215 #define _MD_EINTERRUPTED               _MD_UNIQUEBASE + 1
 216 #define _MD_ETIMEDOUT                  _MD_UNIQUEBASE + 2
 217 #define _MD_EIO                        _MD_UNIQUEBASE + 3
 218
 219 struct PRProcess;
 220 struct PRProcessAttr;
 221
 222 /* --- Create a new process --- */
 223 #define _MD_CREATE_PROCESS _PR_CreateWindowsProcess
 224 extern struct PRProcess * _PR_CreateWindowsProcess(
 225     const char *path,
 226     char *const *argv,
 227     char *const *envp,
 228     const struct PRProcessAttr *attr
 229 );
 230
 231 #define _MD_DETACH_PROCESS _PR_DetachWindowsProcess
 232 extern PRStatus _PR_DetachWindowsProcess(struct PRProcess *process);
 233
 234 /* --- Wait for a child process to terminate --- */
 235 #define _MD_WAIT_PROCESS _PR_WaitWindowsProcess
 236 extern PRStatus _PR_WaitWindowsProcess(struct PRProcess *process,
 237     PRInt32 *exitCode);
 238
 239 #define _MD_KILL_PROCESS _PR_KillWindowsProcess
 240 extern PRStatus _PR_KillWindowsProcess(struct PRProcess *process);
 241
 242
 243 /* --- Misc stuff --- */
 244
 245 #define MD_ASSERTINT( x )             PR_ASSERT( (x) < 65535 )
 246
 247 /* --- IO stuff --- */
 248 #define MAX_PATH    256
 249 #define _MD_ERRNO()                   errno
 250 #define GetLastError()                errno
 251
 252 #define _MD_GET_FILE_ERROR()          errno
 253 #define _MD_SET_FILE_ERROR(_err)      errno = (_err)
 254
 255 #define _MD_OPEN                      _PR_MD_OPEN
 256 #define _MD_READ                      _PR_MD_READ
 257 #define _MD_WRITE                     _PR_MD_WRITE
 258 #define _MD_WRITEV                    _PR_MD_WRITEV
 259 #define _MD_LSEEK                     _PR_MD_LSEEK
 260 #define _MD_LSEEK64                   _PR_MD_LSEEK64
 261 #define _MD_CLOSE_FILE                _PR_MD_CLOSE_FILE
 262 #define _MD_GETFILEINFO               _PR_MD_GETFILEINFO
 263 #define _MD_GETOPENFILEINFO           _PR_MD_GETOPENFILEINFO
 264 #define _MD_STAT                      _PR_MD_STAT
 265 #define _MD_RENAME                    _PR_MD_RENAME
 266 #define _MD_ACCESS                    _PR_MD_ACCESS
 267 #define _MD_DELETE                    _PR_MD_DELETE
 268 #define _MD_MKDIR                     _PR_MD_MKDIR
 269 #define _MD_RMDIR                     _PR_MD_RMDIR
 270 #define _MD_LOCKFILE                  _PR_MD_LOCKFILE
 271 #define _MD_TLOCKFILE                 _PR_MD_TLOCKFILE
 272 #define _MD_UNLOCKFILE                _PR_MD_UNLOCKFILE
 273
 274
 275 /* --- Socket IO stuff --- */
 276 #define _MD_EACCES                WSAEACCES
 277 #define _MD_EADDRINUSE            WSAEADDRINUSE
 278 #define _MD_EADDRNOTAVAIL         WSAEADDRNOTAVAIL
 279 #define _MD_EAFNOSUPPORT          WSAEAFNOSUPPORT
 280 #define _MD_EAGAIN                WSAEWOULDBLOCK
 281 #define _MD_EALREADY              WSAEALREADY
 282 #define _MD_EBADF                 WSAEBADF
 283 #define _MD_ECONNREFUSED          WSAECONNREFUSED
 284 #define _MD_ECONNRESET            WSAECONNRESET
 285 #define _MD_EFAULT                WSAEFAULT
 286 #define _MD_EINPROGRESS           WSAEINPROGRESS
 287 #define _MD_EINTR                 WSAEINTR
 288 #define _MD_EINVAL                EINVAL
 289 #define _MD_EISCONN               WSAEISCONN
 290 #define _MD_ENETUNREACH           WSAENETUNREACH
 291 #define _MD_ENOENT                ENOENT
 292 #define _MD_ENOTCONN              WSAENOTCONN
 293 #define _MD_ENOTSOCK              WSAENOTSOCK
 294 #define _MD_EOPNOTSUPP            WSAEOPNOTSUPP
 295 #define _MD_EWOULDBLOCK           WSAEWOULDBLOCK
 296 #define _MD_GET_SOCKET_ERROR()    WSAGetLastError()
 297 #define _MD_SET_SOCKET_ERROR(_err) WSASetLastError(_err)
 298
 299 #define _MD_INIT_FILEDESC(fd)
 300 #define _MD_MAKE_NONBLOCK             _PR_MD_MAKE_NONBLOCK
 301 #define _MD_SHUTDOWN                  _PR_MD_SHUTDOWN
 302 #define _MD_LISTEN                      _PR_MD_LISTEN
 303 #define _MD_CLOSE_SOCKET              _PR_MD_CLOSE_SOCKET
 304 #define _MD_SENDTO                    _PR_MD_SENDTO
 305 #define _MD_RECVFROM                  _PR_MD_RECVFROM
 306 #define _MD_SOCKETPAIR(s, type, proto, sv) -1
 307 #define _MD_GETSOCKNAME               _PR_MD_GETSOCKNAME
 308 #define _MD_GETPEERNAME               _PR_MD_GETPEERNAME
 309 #define _MD_GETSOCKOPT                _PR_MD_GETSOCKOPT
 310 #define _MD_SETSOCKOPT                _PR_MD_SETSOCKOPT
 311 #define _MD_SELECT                    select
 312 #define _MD_FSYNC                     _PR_MD_FSYNC
 313 #define _MD_SOCKETAVAILABLE           _PR_MD_SOCKETAVAILABLE
 314
 315 #define _MD_INIT_ATOMIC()
 316 #define _MD_ATOMIC_INCREMENT(x)       (*x++)
 317 #define _MD_ATOMIC_ADD(ptr, val)      ((*x) += val)
 318 #define _MD_ATOMIC_DECREMENT(x)       (*x--)
 319 #define _MD_ATOMIC_SET(x,y)           (*x, y)
 320
 321 #define _MD_INIT_IO                   _PR_MD_INIT_IO
 322
 323 /* win95 doesn't have async IO */
 324 #define _MD_SOCKET                    _PR_MD_SOCKET
 325 #define _MD_CONNECT                   _PR_MD_CONNECT
 326 #define _MD_ACCEPT                    _PR_MD_ACCEPT
 327 #define _MD_BIND                      _PR_MD_BIND
 328 #define _MD_RECV                      _PR_MD_RECV
 329 #define _MD_SEND                      _PR_MD_SEND
 330
 331 #define _MD_CHECK_FOR_EXIT()
 332
 333 /* --- Scheduler stuff --- */
 334 #define _MD_PAUSE_CPU                 _PR_MD_PAUSE_CPU
 335
 336 /* --- DIR stuff --- */
 337 #define PR_DIRECTORY_SEPARATOR        '\\'
 338 #define PR_DIRECTORY_SEPARATOR_STR    "\\"
 339 #define PR_PATH_SEPARATOR               ';'
 340 #define PR_PATH_SEPARATOR_STR           ";"
 341 #define _MD_OPEN_DIR                  _PR_MD_OPEN_DIR
 342 #define _MD_CLOSE_DIR                 _PR_MD_CLOSE_DIR
 343 #define _MD_READ_DIR                  _PR_MD_READ_DIR
 344
 345 /* --- Segment stuff --- */
 346 #define _MD_INIT_SEGS()
 347 #define _MD_ALLOC_SEGMENT           _MD_AllocSegment
 348 #define _MD_FREE_SEGMENT            _MD_FreeSegment
 349
 350 /* --- Environment Stuff --- */
 351 #define _MD_GET_ENV                 _PR_MD_GET_ENV
 352 #define _MD_PUT_ENV                 _PR_MD_PUT_ENV
 353
 354 /* --- Threading Stuff --- */
 355 #define _MD_DEFAULT_STACK_SIZE      32767L
 356 #define _MD_INIT_THREAD             _PR_MD_INIT_THREAD
 357 #define _MD_CREATE_THREAD(t,f,p,sc,st,stsiz) (PR_SUCCESS)
 358 #define _MD_YIELD                   _PR_MD_YIELD
 359 #define _MD_SET_PRIORITY(t,p)
 360 #define _MD_CLEAN_THREAD(t)
 361 #define _MD_SETTHREADAFFINITYMASK   _PR_MD_SETTHREADAFFINITYMASK
 362 #define _MD_GETTHREADAFFINITYMASK   _PR_MD_GETTHREADAFFINITYMASK
 363 #define _MD_EXIT_THREAD
 364 #define _MD_SUSPEND_THREAD          _PR_MD_SUSPEND_THREAD
 365 #define _MD_RESUME_THREAD           _PR_MD_RESUME_THREAD
 366 #define _MD_SUSPEND_CPU             _PR_MD_SUSPEND_CPU
 367 #define _MD_RESUME_CPU              _PR_MD_RESUME_CPU
 368 #define _MD_BEGIN_SUSPEND_ALL()
 369 #define _MD_BEGIN_RESUME_ALL()
 370 #define _MD_END_SUSPEND_ALL()
 371 #define _MD_END_RESUME_ALL()
 372
 373 /* --- Lock stuff --- */
 374 /*
 375 ** Win16 does not need MD locks.
 376 */
 377 #define _PR_LOCK                    _MD_LOCK
 378 #define _PR_UNLOCK                  _MD_UNLOCK
 379
 380 #define _MD_NEW_LOCK(l)             (PR_SUCCESS)
 381 #define _MD_FREE_LOCK(l)
 382 #define _MD_LOCK(l)
 383 #define _MD_TEST_AND_LOCK(l)        (-1)
 384 #define _MD_UNLOCK(l)
 385
 386 /* --- lock and cv waiting --- */
 387 #define _MD_WAIT                      _PR_MD_WAIT
 388 #define _MD_WAKEUP_WAITER(a)
 389 #define _MD_WAKEUP_CPUS               _PR_MD_WAKEUP_CPUS
 390
 391 /* --- CVar ------------------- */
 392 #define _MD_WAIT_CV                                       _PR_MD_WAIT_CV
 393 #define _MD_NEW_CV                                        _PR_MD_NEW_CV
 394 #define _MD_FREE_CV                                       _PR_MD_FREE_CV
 395 #define _MD_NOTIFY_CV                             _PR_MD_NOTIFY_CV
 396 #define _MD_NOTIFYALL_CV                          _PR_MD_NOTIFYALL_CV
 397
 398    /* XXXMB- the IOQ stuff is certainly not working correctly yet. */
 399 #define _MD_IOQ_LOCK()
 400 #define _MD_IOQ_UNLOCK()
 401
 402
 403 /* --- Initialization stuff --- */
 404 NSPR_API(void) _MD_INIT_RUNNING_CPU(struct _PRCPU *cpu );
 405 #define _MD_START_INTERRUPTS()
 406 #define _MD_STOP_INTERRUPTS()
 407 #define _MD_DISABLE_CLOCK_INTERRUPTS()
 408 #define _MD_ENABLE_CLOCK_INTERRUPTS()
 409 #define _MD_BLOCK_CLOCK_INTERRUPTS()
 410 #define _MD_UNBLOCK_CLOCK_INTERRUPTS()
 411 #define _MD_EARLY_INIT                  _PR_MD_EARLY_INIT
 412 #define _MD_FINAL_INIT                  _PR_MD_FINAL_INIT
 413 #define _MD_INIT_CPUS()
 414
 415 /* --- User Threading stuff --- */
 416 #define _MD_EXIT
 417
 418 #define _MD_CLEANUP_BEFORE_EXIT              _PR_MD_CLEANUP_BEFORE_EXIT
 419
 420 /* --- Intervals --- */
 421 #define _MD_INTERVAL_INIT                 _PR_MD_INTERVAL_INIT
 422 #define _MD_GET_INTERVAL                  _PR_MD_GET_INTERVAL
 423 #define _MD_INTERVAL_PER_SEC              _PR_MD_INTERVAL_PER_SEC
 424 #define _MD_INTERVAL_PER_MILLISEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000)
 425 #define _MD_INTERVAL_PER_MICROSEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000000)
 426
 427 /* --- Scheduler stuff --- */
 428 #define LOCK_SCHEDULER()                 0
 429 #define UNLOCK_SCHEDULER()               0
 430 #define _PR_LockSched()                  0
 431 #define _PR_UnlockSched()                0
 432
 433 /* --- Initialization stuff --- */
 434 #define _MD_INIT_LOCKS()
 435
 436 /* --- Stack stuff --- */
 437 #define _MD_INIT_STACK                   _PR_MD_INIT_STACK
 438 #define _MD_CLEAR_STACK(stack)
 439
 440 /*
 441 ** Watcom needs to see this to make the linker work.
 442 **
 443 */
 444 NSPR_API(void) _PR_NativeDestroyThread(PRThread *thread);
 445 NSPR_API(void) _PR_UserDestroyThread(PRThread *thread);
 446
 447
 448 /*
 449 ** If thread emulation is used, then setjmp/longjmp stores the register
 450 ** state of each thread.
 451 **
 452 ** CatchBuf layout:
 453 **  context[0] - IP
 454 **  context[1] - CS
 455 **  context[2] - SP
 456 **  context[3] - BP
 457 **  context[4] - SI
 458 **  context[5] - DI
 459 **  context[6] - DS
 460 **  context[7] - ?? (maybe flags)
 461 **  context[8] - SS
 462 */
 463 #define PR_CONTEXT_TYPE     CATCHBUF
 464 #define PR_NUM_GCREGS       9
 465
 466 #define _MD_GET_SP(thread)  ((thread)->md.SP)
 467 #define CONTEXT(_t)  ((_t)->md.context)
 468
 469 /*
 470 ** Initialize a thread context to run "e(o,a)" when started
 471 */
 472 #define _MD_INIT_CONTEXT(_t, sp, epa, stat )   \
 473 {                                              \
 474      *(stat) = PR_TRUE;                        \
 475      Catch((_t)->md.context );             \
 476      (_t)->md.context[0] = OFFSETOF(epa);         \
 477      (_t)->md.context[1] = SELECTOROF(epa);                       \
 478      (_t)->md.context[2] = OFFSETOF(_pr_top_of_task_stack - 64);  \
 479      (_t)->md.context[3]  = 0;                 \
 480 }
 481
 482 #define _MD_SWITCH_CONTEXT(_t)                 \
 483     if (!Catch((_t)->md.context)) {            \
 484         int     garbCollPlaceHolder;           \
 485         (_t)->md.errcode = errno;              \
 486         (_t)->md.SP = &garbCollPlaceHolder;    \
 487         _PR_Schedule();                        \
 488     }
 489
 490 #define _MD_SAVE_CONTEXT(_t)                    \
 491     {                                           \
 492         int     garbCollPlaceHolder;            \
 493         Catch((_t)->md.context);                \
 494         (_t)->md.errcode = errno;               \
 495         (_t)->md.SP = &garbCollPlaceHolder;     \
 496     }
 497
 498 /*
 499 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
 500 */
 501 #define _PR_MD_RESTORE_CONTEXT  _MD_RESTORE_CONTEXT
 502
 503 /*
 504  * Memory-mapped files
 505  */
 506
 507 struct _MDFileMap {
 508     PRInt8 unused;
 509 };
 510
 511 extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size);
 512 #define _MD_CREATE_FILE_MAP _MD_CreateFileMap
 513
 514 extern PRInt32 _MD_GetMemMapAlignment(void);
 515 #define _MD_GET_MEM_MAP_ALIGNMENT _MD_GetMemMapAlignment
 516
 517 extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset,
 518         PRUint32 len);
 519 #define _MD_MEM_MAP _MD_MemMap
 520
 521 extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size);
 522 #define _MD_MEM_UNMAP _MD_MemUnmap
 523
 524 extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap);
 525 #define _MD_CLOSE_FILE_MAP _MD_CloseFileMap
 526
 527
 528 /* --- Error mapping ----------------------------------- */
 529 extern void _PR_MD_map_error( int err );
 530
 531 #define _PR_MD_MAP_OPENDIR_ERROR        _PR_MD_map_error
 532 #define _PR_MD_MAP_CLOSEDIR_ERROR       _PR_MD_map_error
 533 #define _PR_MD_MAP_READDIR_ERROR        _PR_MD_map_error
 534 #define _PR_MD_MAP_DELETE_ERROR         _PR_MD_map_error
 535 #define _PR_MD_MAP_STAT_ERROR           _PR_MD_map_error
 536 #define _PR_MD_MAP_FSTAT_ERROR          _PR_MD_map_error
 537 #define _PR_MD_MAP_RENAME_ERROR         _PR_MD_map_error
 538 #define _PR_MD_MAP_ACCESS_ERROR         _PR_MD_map_error
 539 #define _PR_MD_MAP_MKDIR_ERROR          _PR_MD_map_error
 540 #define _PR_MD_MAP_RMDIR_ERROR          _PR_MD_map_error
 541 #define _PR_MD_MAP_READ_ERROR           _PR_MD_map_error
 542 #define _PR_MD_MAP_TRANSMITFILE_ERROR   _PR_MD_map_error
 543 #define _PR_MD_MAP_WRITE_ERROR          _PR_MD_map_error
 544 #define _PR_MD_MAP_LSEEK_ERROR          _PR_MD_map_error
 545 #define _PR_MD_MAP_FSYNC_ERROR          _PR_MD_map_error
 546 #define _PR_MD_MAP_CLOSE_ERROR          _PR_MD_map_error
 547 #define _PR_MD_MAP_SOCKET_ERROR         _PR_MD_map_error
 548 #define _PR_MD_MAP_RECV_ERROR           _PR_MD_map_error
 549 #define _PR_MD_MAP_RECVFROM_ERROR       _PR_MD_map_error
 550 #define _PR_MD_MAP_SEND_ERROR           _PR_MD_map_error
 551 #define _PR_MD_MAP_SENDTO_ERROR         _PR_MD_map_error
 552 #define _PR_MD_MAP_ACCEPT_ERROR         _PR_MD_map_error
 553 #define _PR_MD_MAP_ACCEPTEX_ERROR       _PR_MD_map_error
 554 #define _PR_MD_MAP_CONNECT_ERROR        _PR_MD_map_error
 555 #define _PR_MD_MAP_BIND_ERROR           _PR_MD_map_error
 556 #define _PR_MD_MAP_LISTEN_ERROR         _PR_MD_map_error
 557 #define _PR_MD_MAP_SHUTDOWN_ERROR       _PR_MD_map_error
 558 #define _PR_MD_MAP_GETSOCKNAME_ERROR    _PR_MD_map_error
 559 #define _PR_MD_MAP_GETPEERNAME_ERROR    _PR_MD_map_error
 560 #define _PR_MD_MAP_GETSOCKOPT_ERROR     _PR_MD_map_error
 561 #define _PR_MD_MAP_SETSOCKOPT_ERROR     _PR_MD_map_error
 562 #define _PR_MD_MAP_OPEN_ERROR           _PR_MD_map_error
 563 #define _PR_MD_MAP_GETHOSTNAME_ERROR    _PR_MD_map_error
 564 #define _PR_MD_MAP_SELECT_ERROR         _PR_MD_map_error
 565 #define _PR_MD_MAP_LOCKF_ERROR          _PR_MD_map_error
 566 #define _PR_MD_MAP_WSASTARTUP_ERROR     _PR_MD_map_error
 567
 568 #endif /* nspr_win16_defs_h___ */