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_win95.h (20128B)


      1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 #ifndef nspr_win95_defs_h___
      7 #define nspr_win95_defs_h___
      8 
      9 #include "prio.h"
     10 
     11 #include <windows.h>
     12 #include <winsock.h>
     13 #include <errno.h>
     14 
     15 /*
     16 * Internal configuration macros
     17 */
     18 
     19 #define PR_LINKER_ARCH      "win32"
     20 #define _PR_SI_SYSNAME        "WIN95"
     21 #if defined(_M_IX86) || defined(_X86_)
     22 #define _PR_SI_ARCHITECTURE   "x86"
     23 #elif defined(_M_X64) || defined(_M_AMD64) || defined(_AMD64_)
     24 #define _PR_SI_ARCHITECTURE   "x86-64"
     25 #elif defined(_M_IA64) || defined(_IA64_)
     26 #define _PR_SI_ARCHITECTURE   "ia64"
     27 #elif defined(_M_ARM) || defined(_ARM_)
     28 #define _PR_SI_ARCHITECTURE   "arm"
     29 #elif defined(_M_ARM64)
     30 #define _PR_SI_ARCHITECTURE   "aarch64"
     31 #else
     32 #error unknown processor architecture
     33 #endif
     34 
     35 #define HAVE_DLL
     36 #undef  HAVE_THREAD_AFFINITY
     37 #define _PR_HAVE_GETADDRINFO
     38 #define _PR_INET6_PROBE
     39 #ifndef _PR_INET6
     40 #define AF_INET6 23
     41 /* newer ws2tcpip.h provides these */
     42 #ifndef AI_CANONNAME
     43 #define AI_CANONNAME 0x2
     44 #define AI_NUMERICHOST 0x4
     45 #define NI_NUMERICHOST 0x02
     46 struct addrinfo {
     47    int ai_flags;
     48    int ai_family;
     49    int ai_socktype;
     50    int ai_protocol;
     51    size_t ai_addrlen;
     52    char *ai_canonname;
     53    struct sockaddr *ai_addr;
     54    struct addrinfo *ai_next;
     55 };
     56 #endif
     57 #define _PR_HAVE_MD_SOCKADDR_IN6
     58 /* isomorphic to struct in6_addr on Windows */
     59 struct _md_in6_addr {
     60    union {
     61        PRUint8  _S6_u8[16];
     62        PRUint16 _S6_u16[8];
     63    } _S6_un;
     64 };
     65 /* isomorphic to struct sockaddr_in6 on Windows */
     66 struct _md_sockaddr_in6 {
     67    PRInt16 sin6_family;
     68    PRUint16 sin6_port;
     69    PRUint32 sin6_flowinfo;
     70    struct _md_in6_addr sin6_addr;
     71    PRUint32 sin6_scope_id;
     72 };
     73 #endif
     74 #define _PR_HAVE_THREADSAFE_GETHOST
     75 #define _PR_HAVE_ATOMIC_OPS
     76 #define PR_HAVE_WIN32_NAMED_SHARED_MEMORY
     77 
     78 /* --- Common User-Thread/Native-Thread Definitions --------------------- */
     79 
     80 /* --- Globals --- */
     81 extern struct PRLock                      *_pr_schedLock;
     82 
     83 /* --- Typedefs --- */
     84 typedef void (*FiberFunc)(void *);
     85 
     86 #define PR_NUM_GCREGS           8
     87 typedef PRInt32                 PR_CONTEXT_TYPE[PR_NUM_GCREGS];
     88 #define GC_VMBASE               0x40000000
     89 #define GC_VMLIMIT              0x00FFFFFF
     90 
     91 #define _MD_MAGIC_THREAD    0x22222222
     92 #define _MD_MAGIC_THREADSTACK   0x33333333
     93 #define _MD_MAGIC_SEGMENT   0x44444444
     94 #define _MD_MAGIC_DIR       0x55555555
     95 #define _MD_MAGIC_CV        0x66666666
     96 
     97 struct _MDCPU {
     98    int              unused;
     99 };
    100 
    101 struct _MDThread {
    102    HANDLE           blocked_sema;      /* Threads block on this when waiting
    103                                         * for IO or CondVar.
    104                                         */
    105    PRBool           inCVWaitQueue;     /* PR_TRUE if the thread is in the
    106                                         * wait queue of some cond var.
    107                                         * PR_FALSE otherwise.  */
    108    HANDLE           handle;            /* Win32 thread handle */
    109    PRUint32         id;
    110    void            *sp;                /* only valid when suspended */
    111    PRUint32         magic;             /* for debugging */
    112    PR_CONTEXT_TYPE  gcContext;         /* Thread context for GC */
    113    struct PRThread *prev, *next;       /* used by the cvar wait queue to
    114                                         * chain the PRThread structures
    115                                         * together */
    116    void (*start)(void *);              /* used by _PR_MD_CREATE_THREAD to
    117                                         * pass its 'start' argument to
    118                                         * pr_root. */
    119 };
    120 
    121 struct _MDThreadStack {
    122    PRUint32           magic;          /* for debugging */
    123 };
    124 
    125 struct _MDSegment {
    126    PRUint32           magic;          /* for debugging */
    127 };
    128 
    129 #undef PROFILE_LOCKS
    130 
    131 struct _MDDir {
    132    HANDLE           d_hdl;
    133    WIN32_FIND_DATAA d_entry;
    134    PRBool           firstEntry;     /* Is this the entry returned
    135                                      * by FindFirstFile()? */
    136    PRUint32         magic;          /* for debugging */
    137 };
    138 
    139 #ifdef MOZ_UNICODE
    140 struct _MDDirUTF16 {
    141    HANDLE           d_hdl;
    142    WIN32_FIND_DATAW d_entry;
    143    PRBool           firstEntry;     /* Is this the entry returned
    144                                      * by FindFirstFileW()? */
    145    PRUint32         magic;          /* for debugging */
    146 };
    147 #endif /* MOZ_UNICODE */
    148 
    149 struct _MDCVar {
    150    PRUint32 magic;
    151    struct PRThread *waitHead, *waitTail;  /* the wait queue: a doubly-
    152                                            * linked list of threads
    153                                            * waiting on this condition
    154                                            * variable */
    155    PRIntn nwait;                          /* number of threads in the
    156                                            * wait queue */
    157 };
    158 
    159 #define _MD_CV_NOTIFIED_LENGTH 6
    160 typedef struct _MDNotified _MDNotified;
    161 struct _MDNotified {
    162    PRIntn length;                     /* # of used entries in this
    163                                        * structure */
    164    struct {
    165        struct _MDCVar *cv;            /* the condition variable notified */
    166        PRIntn times;                  /* and the number of times notified */
    167        struct PRThread *notifyHead;   /* list of threads to wake up */
    168    } cv[_MD_CV_NOTIFIED_LENGTH];
    169    _MDNotified *link;                 /* link to another of these, or NULL */
    170 };
    171 
    172 struct _MDLock {
    173    CRITICAL_SECTION mutex;          /* this is recursive on NT */
    174 
    175    /*
    176     * When notifying cvars, there is no point in actually
    177     * waking up the threads waiting on the cvars until we've
    178     * released the lock.  So, we temporarily record the cvars.
    179     * When doing an unlock, we'll then wake up the waiting threads.
    180     */
    181    struct _MDNotified notified;     /* array of conditions notified */
    182 #ifdef PROFILE_LOCKS
    183    PRInt32 hitcount;
    184    PRInt32 misscount;
    185 #endif
    186 };
    187 
    188 struct _MDSemaphore {
    189    HANDLE           sem;
    190 };
    191 
    192 struct _MDFileDesc {
    193    PROsfd osfd;     /* The osfd can come from one of three spaces:
    194                      * - For stdin, stdout, and stderr, we are using
    195                      *   the libc file handle (0, 1, 2), which is an int.
    196                      * - For files and pipes, we are using Win32 HANDLE,
    197                      *   which is a void*.
    198                      * - For sockets, we are using Winsock SOCKET, which
    199                      *   is a u_int.
    200                      */
    201 };
    202 
    203 struct _MDProcess {
    204    HANDLE handle;
    205    DWORD id;
    206 };
    207 
    208 /* --- Misc stuff --- */
    209 #define _MD_GET_SP(thread)            (thread)->md.gcContext[6]
    210 
    211 /* --- NT security stuff --- */
    212 
    213 extern void _PR_NT_InitSids(void);
    214 extern void _PR_NT_FreeSids(void);
    215 extern PRStatus _PR_NT_MakeSecurityDescriptorACL(
    216    PRIntn mode,
    217    DWORD accessTable[],
    218    PSECURITY_DESCRIPTOR *resultSD,
    219    PACL *resultACL
    220 );
    221 extern void _PR_NT_FreeSecurityDescriptorACL(
    222    PSECURITY_DESCRIPTOR pSD, PACL pACL);
    223 
    224 /* --- IO stuff --- */
    225 
    226 #define _MD_OPEN                      _PR_MD_OPEN
    227 #define _MD_OPEN_FILE                 _PR_MD_OPEN_FILE
    228 #define _MD_READ                      _PR_MD_READ
    229 #define _MD_WRITE                     _PR_MD_WRITE
    230 #define _MD_WRITEV                    _PR_MD_WRITEV
    231 #define _MD_LSEEK                     _PR_MD_LSEEK
    232 #define _MD_LSEEK64                   _PR_MD_LSEEK64
    233 extern PRInt32 _MD_CloseFile(PROsfd osfd);
    234 #define _MD_CLOSE_FILE                _MD_CloseFile
    235 #define _MD_GETFILEINFO               _PR_MD_GETFILEINFO
    236 #define _MD_GETFILEINFO64             _PR_MD_GETFILEINFO64
    237 #define _MD_GETOPENFILEINFO           _PR_MD_GETOPENFILEINFO
    238 #define _MD_GETOPENFILEINFO64         _PR_MD_GETOPENFILEINFO64
    239 #define _MD_STAT                      _PR_MD_STAT
    240 #define _MD_RENAME                    _PR_MD_RENAME
    241 #define _MD_ACCESS                    _PR_MD_ACCESS
    242 #define _MD_DELETE                    _PR_MD_DELETE
    243 #define _MD_MKDIR                     _PR_MD_MKDIR
    244 #define _MD_MAKE_DIR                  _PR_MD_MAKE_DIR
    245 #define _MD_RMDIR                     _PR_MD_RMDIR
    246 #define _MD_LOCKFILE                  _PR_MD_LOCKFILE
    247 #define _MD_TLOCKFILE                 _PR_MD_TLOCKFILE
    248 #define _MD_UNLOCKFILE                _PR_MD_UNLOCKFILE
    249 
    250 /* --- UTF16 IO stuff --- */
    251 #ifdef MOZ_UNICODE
    252 #define _MD_OPEN_FILE_UTF16           _PR_MD_OPEN_FILE_UTF16
    253 #define _MD_OPEN_DIR_UTF16            _PR_MD_OPEN_DIR_UTF16
    254 #define _MD_READ_DIR_UTF16            _PR_MD_READ_DIR_UTF16
    255 #define _MD_CLOSE_DIR_UTF16           _PR_MD_CLOSE_DIR_UTF16
    256 #define _MD_GETFILEINFO64_UTF16       _PR_MD_GETFILEINFO64_UTF16
    257 #endif /* MOZ_UNICODE */
    258 
    259 /* --- Socket IO stuff --- */
    260 extern void _PR_MD_InitSockets(void);
    261 extern void _PR_MD_CleanupSockets(void);
    262 #define _MD_EACCES                WSAEACCES
    263 #define _MD_EADDRINUSE            WSAEADDRINUSE
    264 #define _MD_EADDRNOTAVAIL         WSAEADDRNOTAVAIL
    265 #define _MD_EAFNOSUPPORT          WSAEAFNOSUPPORT
    266 #define _MD_EAGAIN                WSAEWOULDBLOCK
    267 #define _MD_EALREADY              WSAEALREADY
    268 #define _MD_EBADF                 WSAEBADF
    269 #define _MD_ECONNREFUSED          WSAECONNREFUSED
    270 #define _MD_ECONNRESET            WSAECONNRESET
    271 #define _MD_EFAULT                WSAEFAULT
    272 #define _MD_EINPROGRESS           WSAEINPROGRESS
    273 #define _MD_EINTR                 WSAEINTR
    274 #define _MD_EINVAL                EINVAL
    275 #define _MD_EISCONN               WSAEISCONN
    276 #define _MD_ENETUNREACH           WSAENETUNREACH
    277 #define _MD_ENOENT                ENOENT
    278 #define _MD_ENOTCONN              WSAENOTCONN
    279 #define _MD_ENOTSOCK              WSAENOTSOCK
    280 #define _MD_EOPNOTSUPP            WSAEOPNOTSUPP
    281 #define _MD_EWOULDBLOCK           WSAEWOULDBLOCK
    282 #define _MD_GET_SOCKET_ERROR()    WSAGetLastError()
    283 #define _MD_SET_SOCKET_ERROR(_err) WSASetLastError(_err)
    284 
    285 #define _MD_INIT_FILEDESC(fd)
    286 extern void _MD_MakeNonblock(PRFileDesc *f);
    287 #define _MD_MAKE_NONBLOCK             _MD_MakeNonblock
    288 #define _MD_INIT_FD_INHERITABLE       _PR_MD_INIT_FD_INHERITABLE
    289 #define _MD_QUERY_FD_INHERITABLE      _PR_MD_QUERY_FD_INHERITABLE
    290 #define _MD_SHUTDOWN                  _PR_MD_SHUTDOWN
    291 #define _MD_LISTEN                    _PR_MD_LISTEN
    292 extern PRInt32 _MD_CloseSocket(PROsfd osfd);
    293 #define _MD_CLOSE_SOCKET              _MD_CloseSocket
    294 #define _MD_SENDTO                    _PR_MD_SENDTO
    295 #ifdef _WIN64
    296 #define _MD_TCPSENDTO                 _PR_MD_TCPSENDTO
    297 #endif
    298 #define _MD_RECVFROM                  _PR_MD_RECVFROM
    299 #define _MD_SOCKETPAIR(s, type, proto, sv) -1
    300 #define _MD_GETSOCKNAME               _PR_MD_GETSOCKNAME
    301 #define _MD_GETPEERNAME               _PR_MD_GETPEERNAME
    302 #define _MD_GETSOCKOPT                _PR_MD_GETSOCKOPT
    303 #define _MD_SETSOCKOPT                _PR_MD_SETSOCKOPT
    304 #define _MD_SET_FD_INHERITABLE        _PR_MD_SET_FD_INHERITABLE
    305 #define _MD_SELECT                    select
    306 #define _MD_FSYNC                     _PR_MD_FSYNC
    307 #define READ_FD                       1
    308 #define WRITE_FD                      2
    309 
    310 #define _MD_INIT_ATOMIC()
    311 #if defined(_M_IX86) || defined(_X86_)
    312 #define _MD_ATOMIC_INCREMENT          _PR_MD_ATOMIC_INCREMENT
    313 #define _MD_ATOMIC_ADD                _PR_MD_ATOMIC_ADD
    314 #define _MD_ATOMIC_DECREMENT          _PR_MD_ATOMIC_DECREMENT
    315 #else /* non-x86 processors */
    316 #define _MD_ATOMIC_INCREMENT(x)       InterlockedIncrement((PLONG)x)
    317 #define _MD_ATOMIC_ADD(ptr,val)    (InterlockedExchangeAdd((PLONG)ptr, (LONG)val) + val)
    318 #define _MD_ATOMIC_DECREMENT(x)       InterlockedDecrement((PLONG)x)
    319 #endif /* x86 */
    320 #define _MD_ATOMIC_SET(x,y)           InterlockedExchange((PLONG)x, (LONG)y)
    321 
    322 #define _MD_INIT_IO                   _PR_MD_INIT_IO
    323 
    324 
    325 /* win95 doesn't have async IO */
    326 #define _MD_SOCKET                    _PR_MD_SOCKET
    327 extern PRInt32 _MD_SocketAvailable(PRFileDesc *fd);
    328 #define _MD_SOCKETAVAILABLE           _MD_SocketAvailable
    329 #define _MD_PIPEAVAILABLE             _PR_MD_PIPEAVAILABLE
    330 #define _MD_CONNECT                   _PR_MD_CONNECT
    331 extern PROsfd _MD_Accept(PRFileDesc *fd, PRNetAddr *raddr, PRUint32 *rlen,
    332                         PRIntervalTime timeout);
    333 #define _MD_ACCEPT                    _MD_Accept
    334 #define _MD_BIND                      _PR_MD_BIND
    335 #define _MD_RECV                      _PR_MD_RECV
    336 #define _MD_SEND                      _PR_MD_SEND
    337 #define _MD_PR_POLL                   _PR_MD_PR_POLL
    338 
    339 /* --- Scheduler stuff --- */
    340 // #define _MD_PAUSE_CPU                 _PR_MD_PAUSE_CPU
    341 #define _MD_PAUSE_CPU
    342 
    343 /* --- DIR stuff --- */
    344 #define PR_DIRECTORY_SEPARATOR        '\\'
    345 #define PR_DIRECTORY_SEPARATOR_STR    "\\"
    346 #define PR_PATH_SEPARATOR       ';'
    347 #define PR_PATH_SEPARATOR_STR       ";"
    348 #define _MD_ERRNO()                   GetLastError()
    349 #define _MD_OPEN_DIR                  _PR_MD_OPEN_DIR
    350 #define _MD_CLOSE_DIR                 _PR_MD_CLOSE_DIR
    351 #define _MD_READ_DIR                  _PR_MD_READ_DIR
    352 
    353 /* --- Segment stuff --- */
    354 #define _MD_INIT_SEGS()
    355 #define _MD_ALLOC_SEGMENT(seg, size, vaddr)   0
    356 #define _MD_FREE_SEGMENT(seg)
    357 
    358 /* --- Environment Stuff --- */
    359 #define _MD_GET_ENV                 _PR_MD_GET_ENV
    360 #define _MD_PUT_ENV                 _PR_MD_PUT_ENV
    361 
    362 /* --- Threading Stuff --- */
    363 #define _MD_DEFAULT_STACK_SIZE            0
    364 #define _MD_INIT_THREAD             _PR_MD_INIT_THREAD
    365 #define _MD_INIT_ATTACHED_THREAD    _PR_MD_INIT_THREAD
    366 #define _MD_CREATE_THREAD           _PR_MD_CREATE_THREAD
    367 #define _MD_YIELD                   _PR_MD_YIELD
    368 #define _MD_SET_PRIORITY            _PR_MD_SET_PRIORITY
    369 #define _MD_SET_CURRENT_THREAD_NAME _PR_MD_SET_CURRENT_THREAD_NAME
    370 #define _MD_CLEAN_THREAD            _PR_MD_CLEAN_THREAD
    371 #define _MD_SETTHREADAFFINITYMASK   _PR_MD_SETTHREADAFFINITYMASK
    372 #define _MD_GETTHREADAFFINITYMASK   _PR_MD_GETTHREADAFFINITYMASK
    373 #define _MD_EXIT_THREAD             _PR_MD_EXIT_THREAD
    374 #define _MD_EXIT                    _PR_MD_EXIT
    375 #define _MD_SUSPEND_THREAD          _PR_MD_SUSPEND_THREAD
    376 #define _MD_RESUME_THREAD           _PR_MD_RESUME_THREAD
    377 #define _MD_SUSPEND_CPU             _PR_MD_SUSPEND_CPU
    378 #define _MD_RESUME_CPU              _PR_MD_RESUME_CPU
    379 #define _MD_BEGIN_SUSPEND_ALL()
    380 #define _MD_BEGIN_RESUME_ALL()
    381 #define _MD_END_SUSPEND_ALL()
    382 #define _MD_END_RESUME_ALL()
    383 
    384 /* --- Lock stuff --- */
    385 #define _PR_LOCK                      _MD_LOCK
    386 #define _PR_UNLOCK                    _MD_UNLOCK
    387 
    388 #define _MD_NEW_LOCK                  _PR_MD_NEW_LOCK
    389 #define _MD_FREE_LOCK(lock)           DeleteCriticalSection(&((lock)->mutex))
    390 #define _MD_LOCK(lock)                EnterCriticalSection(&((lock)->mutex))
    391 #define _MD_TEST_AND_LOCK(lock)       (EnterCriticalSection(&((lock)->mutex)),0)
    392 #define _MD_UNLOCK                    _PR_MD_UNLOCK
    393 
    394 /* --- lock and cv waiting --- */
    395 #define _MD_WAIT                      _PR_MD_WAIT
    396 #define _MD_WAKEUP_WAITER             _PR_MD_WAKEUP_WAITER
    397 
    398 /* --- CVar ------------------- */
    399 #define _MD_WAIT_CV                   _PR_MD_WAIT_CV
    400 #define _MD_NEW_CV                    _PR_MD_NEW_CV
    401 #define _MD_FREE_CV                   _PR_MD_FREE_CV
    402 #define _MD_NOTIFY_CV                 _PR_MD_NOTIFY_CV
    403 #define _MD_NOTIFYALL_CV              _PR_MD_NOTIFYALL_CV
    404 
    405 /* XXXMB- the IOQ stuff is certainly not working correctly yet. */
    406 // extern  struct _MDLock              _pr_ioq_lock;
    407 #define _MD_IOQ_LOCK()
    408 #define _MD_IOQ_UNLOCK()
    409 
    410 
    411 /* --- Initialization stuff --- */
    412 #define _MD_START_INTERRUPTS()
    413 #define _MD_STOP_INTERRUPTS()
    414 #define _MD_DISABLE_CLOCK_INTERRUPTS()
    415 #define _MD_ENABLE_CLOCK_INTERRUPTS()
    416 #define _MD_BLOCK_CLOCK_INTERRUPTS()
    417 #define _MD_UNBLOCK_CLOCK_INTERRUPTS()
    418 #define _MD_EARLY_INIT                _PR_MD_EARLY_INIT
    419 #define _MD_FINAL_INIT()
    420 #define _MD_EARLY_CLEANUP()
    421 #define _MD_INIT_CPUS()
    422 #define _MD_INIT_RUNNING_CPU(cpu)
    423 
    424 struct PRProcess;
    425 struct PRProcessAttr;
    426 
    427 #define _MD_CREATE_PROCESS _PR_CreateWindowsProcess
    428 extern struct PRProcess * _PR_CreateWindowsProcess(
    429    const char *path,
    430    char *const *argv,
    431    char *const *envp,
    432    const struct PRProcessAttr *attr
    433 );
    434 
    435 #define _MD_DETACH_PROCESS _PR_DetachWindowsProcess
    436 extern PRStatus _PR_DetachWindowsProcess(struct PRProcess *process);
    437 
    438 /* --- Wait for a child process to terminate --- */
    439 #define _MD_WAIT_PROCESS _PR_WaitWindowsProcess
    440 extern PRStatus _PR_WaitWindowsProcess(struct PRProcess *process,
    441                                       PRInt32 *exitCode);
    442 
    443 #define _MD_KILL_PROCESS _PR_KillWindowsProcess
    444 extern PRStatus _PR_KillWindowsProcess(struct PRProcess *process);
    445 
    446 #define _MD_CLEANUP_BEFORE_EXIT           _PR_MD_CLEANUP_BEFORE_EXIT
    447 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
    448    PR_BEGIN_MACRO \
    449    *status = PR_TRUE; \
    450    PR_END_MACRO
    451 #define _MD_SWITCH_CONTEXT
    452 #define _MD_RESTORE_CONTEXT
    453 
    454 /* --- Intervals --- */
    455 #define _MD_INTERVAL_INIT                 _PR_MD_INTERVAL_INIT
    456 #define _MD_GET_INTERVAL                  _PR_MD_GET_INTERVAL
    457 #define _MD_INTERVAL_PER_SEC              _PR_MD_INTERVAL_PER_SEC
    458 #define _MD_INTERVAL_PER_MILLISEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000)
    459 #define _MD_INTERVAL_PER_MICROSEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000000)
    460 
    461 /* --- Time --- */
    462 extern void _PR_FileTimeToPRTime(const FILETIME *filetime, PRTime *prtm);
    463 
    464 #ifdef WINCE
    465 extern void _MD_InitTime(void);
    466 extern void _MD_CleanupTime(void);
    467 #endif
    468 
    469 /* --- Native-Thread Specific Definitions ------------------------------- */
    470 
    471 extern struct PRThread * _MD_CURRENT_THREAD(void);
    472 
    473 #ifdef _PR_USE_STATIC_TLS
    474 extern __declspec(thread) struct PRThread *_pr_currentThread;
    475 #define _MD_GET_ATTACHED_THREAD() _pr_currentThread
    476 #define _MD_SET_CURRENT_THREAD(_thread) (_pr_currentThread = (_thread))
    477 
    478 extern __declspec(thread) struct PRThread *_pr_thread_last_run;
    479 #define _MD_LAST_THREAD() _pr_thread_last_run
    480 #define _MD_SET_LAST_THREAD(_thread) (_pr_thread_last_run = 0)
    481 
    482 extern __declspec(thread) struct _PRCPU *_pr_currentCPU;
    483 #define _MD_CURRENT_CPU() _pr_currentCPU
    484 #define _MD_SET_CURRENT_CPU(_cpu) (_pr_currentCPU = 0)
    485 #else /* _PR_USE_STATIC_TLS */
    486 extern DWORD _pr_currentThreadIndex;
    487 #define _MD_GET_ATTACHED_THREAD() ((PRThread *) TlsGetValue(_pr_currentThreadIndex))
    488 #define _MD_SET_CURRENT_THREAD(_thread) TlsSetValue(_pr_currentThreadIndex, (_thread))
    489 
    490 extern DWORD _pr_lastThreadIndex;
    491 #define _MD_LAST_THREAD() ((PRThread *) TlsGetValue(_pr_lastThreadIndex))
    492 #define _MD_SET_LAST_THREAD(_thread) TlsSetValue(_pr_lastThreadIndex, 0)
    493 
    494 extern DWORD _pr_currentCPUIndex;
    495 #define _MD_CURRENT_CPU() ((struct _PRCPU *) TlsGetValue(_pr_currentCPUIndex))
    496 #define _MD_SET_CURRENT_CPU(_cpu) TlsSetValue(_pr_currentCPUIndex, 0)
    497 #endif /* _PR_USE_STATIC_TLS */
    498 
    499 /* --- Scheduler stuff --- */
    500 #define LOCK_SCHEDULER()                 0
    501 #define UNLOCK_SCHEDULER()               0
    502 #define _PR_LockSched()                  0
    503 #define _PR_UnlockSched()                0
    504 
    505 /* --- Initialization stuff --- */
    506 #define _MD_INIT_LOCKS                   _PR_MD_INIT_LOCKS
    507 
    508 /* --- Stack stuff --- */
    509 #define _MD_INIT_STACK(stack, redzone)
    510 #define _MD_CLEAR_STACK(stack)
    511 
    512 /* --- Memory-mapped files stuff --- */
    513 
    514 struct _MDFileMap {
    515    HANDLE hFileMap;
    516    DWORD dwAccess;
    517 };
    518 
    519 extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size);
    520 #define _MD_CREATE_FILE_MAP _MD_CreateFileMap
    521 
    522 extern PRInt32 _MD_GetMemMapAlignment(void);
    523 #define _MD_GET_MEM_MAP_ALIGNMENT _MD_GetMemMapAlignment
    524 
    525 extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset,
    526                         PRUint32 len);
    527 #define _MD_MEM_MAP _MD_MemMap
    528 
    529 extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size);
    530 #define _MD_MEM_UNMAP _MD_MemUnmap
    531 
    532 extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap);
    533 #define _MD_CLOSE_FILE_MAP _MD_CloseFileMap
    534 
    535 extern PRStatus _MD_SyncMemMap(
    536    PRFileDesc *fd,
    537    void *addr,
    538    PRUint32 len);
    539 #define _MD_SYNC_MEM_MAP _MD_SyncMemMap
    540 
    541 /* --- Named semaphores stuff --- */
    542 #define _PR_HAVE_NAMED_SEMAPHORES
    543 #define _MD_OPEN_SEMAPHORE            _PR_MD_OPEN_SEMAPHORE
    544 #define _MD_WAIT_SEMAPHORE            _PR_MD_WAIT_SEMAPHORE
    545 #define _MD_POST_SEMAPHORE            _PR_MD_POST_SEMAPHORE
    546 #define _MD_CLOSE_SEMAPHORE           _PR_MD_CLOSE_SEMAPHORE
    547 #define _MD_DELETE_SEMAPHORE(name)    PR_SUCCESS  /* no op */
    548 
    549 #endif /* nspr_win32_defs_h___ */