git.oblomov.eu Git - wine/blob - dlls/kernel/thread.c

   1 /*
   2  * Win32 threads
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <assert.h>
  25 #include <fcntl.h>
  26 #include <stdarg.h>
  27 #include <signal.h>
  28 #include <sys/types.h>
  29 #ifdef HAVE_SYS_TIMES_H
  30 #include <sys/times.h>
  31 #endif
  32 #ifdef HAVE_UNISTD_H
  33 # include <unistd.h>
  34 #endif
  35
  36 #include "ntstatus.h"
  37 #include "windef.h"
  38 #include "winbase.h"
  39 #include "winerror.h"
  40 #include "winnls.h"
  41 #include "module.h"
  42 #include "thread.h"
  43 #include "wine/winbase16.h"
  44 #include "wine/library.h"
  45 #include "wine/pthread.h"
  46 #include "wine/server.h"
  47 #include "wine/debug.h"
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  50 WINE_DECLARE_DEBUG_CHANNEL(relay);
  51
  52
  53 /***********************************************************************
  54  *           THREAD_InitStack
  55  *
  56  * Allocate the stack of a thread.
  57  */
  58 TEB *THREAD_InitStack( TEB *teb, DWORD stack_size )
  59 {
  60     DWORD old_prot;
  61     DWORD page_size = getpagesize();
  62     void *base;
  63
  64     stack_size = (stack_size + (page_size - 1)) & ~(page_size - 1);
  65     if (stack_size < 1024 * 1024) stack_size = 1024 * 1024;  /* Xlib needs a large stack */
  66
  67     if (!(base = VirtualAlloc( NULL, stack_size, MEM_COMMIT, PAGE_EXECUTE_READWRITE )))
  68         return NULL;
  69
  70     teb->DeallocationStack = base;
  71     teb->Tib.StackBase     = (char *)base + stack_size;
  72     teb->Tib.StackLimit    = base;  /* note: limit is lower than base since the stack grows down */
  73
  74     /* Setup guard pages */
  75
  76     VirtualProtect( base, 1, PAGE_EXECUTE_READWRITE | PAGE_GUARD, &old_prot );
  77     return teb;
  78 }
  79
  80
  81 struct new_thread_info
  82 {
  83     LPTHREAD_START_ROUTINE func;
  84     void                  *arg;
  85 };
  86
  87 /***********************************************************************
  88  *           THREAD_Start
  89  *
  90  * Start execution of a newly created thread. Does not return.
  91  */
  92 static void CALLBACK THREAD_Start( void *ptr )
  93 {
  94     struct new_thread_info *info = ptr;
  95     LPTHREAD_START_ROUTINE func = info->func;
  96     void *arg = info->arg;
  97
  98     RtlFreeHeap( GetProcessHeap(), 0, info );
  99
 100     if (TRACE_ON(relay))
 101         DPRINTF("%04lx:Starting thread (entryproc=%p)\n", GetCurrentThreadId(), func );
 102
 103     __TRY
 104     {
 105         MODULE_DllThreadAttach( NULL );
 106         ExitThread( func( arg ) );
 107     }
 108     __EXCEPT(UnhandledExceptionFilter)
 109     {
 110         TerminateThread( GetCurrentThread(), GetExceptionCode() );
 111     }
 112     __ENDTRY
 113 }
 114
 115
 116 /***********************************************************************
 117  *           CreateThread   (KERNEL32.@)
 118  */
 119 HANDLE WINAPI CreateThread( SECURITY_ATTRIBUTES *sa, SIZE_T stack,
 120                             LPTHREAD_START_ROUTINE start, LPVOID param,
 121                             DWORD flags, LPDWORD id )
 122 {
 123     HANDLE handle;
 124     CLIENT_ID client_id;
 125     NTSTATUS status;
 126     SIZE_T stack_reserve = 0, stack_commit = 0;
 127     struct new_thread_info *info;
 128
 129     if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*info) )))
 130     {
 131         SetLastError( ERROR_NOT_ENOUGH_MEMORY );
 132         return 0;
 133     }
 134     info->func = start;
 135     info->arg  = param;
 136
 137     if (flags & STACK_SIZE_PARAM_IS_A_RESERVATION) stack_reserve = stack;
 138     else stack_commit = stack;
 139
 140     status = RtlCreateUserThread( GetCurrentProcess(), NULL, (flags & CREATE_SUSPENDED) != 0,
 141                                   NULL, stack_reserve, stack_commit,
 142                                   THREAD_Start, info, &handle, &client_id );
 143     if (status == STATUS_SUCCESS)
 144     {
 145         if (id) *id = (DWORD)client_id.UniqueThread;
 146         if (sa && (sa->nLength >= sizeof(*sa)) && sa->bInheritHandle)
 147             SetHandleInformation( handle, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT );
 148     }
 149     else
 150     {
 151         RtlFreeHeap( GetProcessHeap(), 0, info );
 152         SetLastError( RtlNtStatusToDosError(status) );
 153         handle = 0;
 154     }
 155     return handle;
 156 }
 157
 158
 159 /***********************************************************************
 160  * OpenThread  [KERNEL32.@]   Retrieves a handle to a thread from its thread id
 161  */
 162 HANDLE WINAPI OpenThread( DWORD dwDesiredAccess, BOOL bInheritHandle, DWORD dwThreadId )
 163 {
 164     HANDLE ret = 0;
 165     SERVER_START_REQ( open_thread )
 166     {
 167         req->tid     = dwThreadId;
 168         req->access  = dwDesiredAccess;
 169         req->inherit = bInheritHandle;
 170         if (!wine_server_call_err( req )) ret = reply->handle;
 171     }
 172     SERVER_END_REQ;
 173     return ret;
 174 }
 175
 176
 177 /***********************************************************************
 178  * ExitThread [KERNEL32.@]  Ends a thread
 179  *
 180  * RETURNS
 181  *    None
 182  */
 183 void WINAPI ExitThread( DWORD code ) /* [in] Exit code for this thread */
 184 {
 185     BOOL last;
 186     SERVER_START_REQ( terminate_thread )
 187     {
 188         /* send the exit code to the server */
 189         req->handle    = GetCurrentThread();
 190         req->exit_code = code;
 191         wine_server_call( req );
 192         last = reply->last;
 193     }
 194     SERVER_END_REQ;
 195
 196     if (last)
 197     {
 198         LdrShutdownProcess();
 199         exit( code );
 200     }
 201     else
 202     {
 203         struct wine_pthread_thread_info info;
 204         sigset_t block_set;
 205         ULONG size;
 206
 207         LdrShutdownThread();
 208         RtlAcquirePebLock();
 209         RemoveEntryList( &NtCurrentTeb()->TlsLinks );
 210         RtlReleasePebLock();
 211
 212         info.stack_base  = NtCurrentTeb()->DeallocationStack;
 213         info.teb_base    = NtCurrentTeb();
 214         info.teb_sel     = wine_get_fs();
 215         info.exit_status = code;
 216
 217         size = 0;
 218         NtFreeVirtualMemory( GetCurrentProcess(), &info.stack_base, &size, MEM_RELEASE | MEM_SYSTEM );
 219         info.stack_size = size;
 220
 221         size = 0;
 222         NtFreeVirtualMemory( GetCurrentProcess(), &info.teb_base, &size, MEM_RELEASE | MEM_SYSTEM );
 223         info.teb_size = size;
 224
 225         /* block the async signals */
 226         sigemptyset( &block_set );
 227         sigaddset( &block_set, SIGALRM );
 228         sigaddset( &block_set, SIGIO );
 229         sigaddset( &block_set, SIGINT );
 230         sigaddset( &block_set, SIGHUP );
 231         sigaddset( &block_set, SIGUSR1 );
 232         sigaddset( &block_set, SIGUSR2 );
 233         sigaddset( &block_set, SIGTERM );
 234         sigprocmask( SIG_BLOCK, &block_set, NULL );
 235
 236         close( NtCurrentTeb()->wait_fd[0] );
 237         close( NtCurrentTeb()->wait_fd[1] );
 238         close( NtCurrentTeb()->reply_fd );
 239         close( NtCurrentTeb()->request_fd );
 240
 241         wine_pthread_exit_thread( &info );
 242     }
 243 }
 244
 245
 246 /**********************************************************************
 247  * TerminateThread [KERNEL32.@]  Terminates a thread
 248  *
 249  * RETURNS
 250  *    Success: TRUE
 251  *    Failure: FALSE
 252  */
 253 BOOL WINAPI TerminateThread( HANDLE handle,    /* [in] Handle to thread */
 254                              DWORD exit_code)  /* [in] Exit code for thread */
 255 {
 256     NTSTATUS status = NtTerminateThread( handle, exit_code );
 257     if (status) SetLastError( RtlNtStatusToDosError(status) );
 258     return !status;
 259 }
 260
 261
 262 /***********************************************************************
 263  *           FreeLibraryAndExitThread (KERNEL32.@)
 264  */
 265 void WINAPI FreeLibraryAndExitThread(HINSTANCE hLibModule, DWORD dwExitCode)
 266 {
 267     FreeLibrary(hLibModule);
 268     ExitThread(dwExitCode);
 269 }
 270
 271
 272 /**********************************************************************
 273  *              GetExitCodeThread (KERNEL32.@)
 274  *
 275  * Gets termination status of thread.
 276  *
 277  * RETURNS
 278  *    Success: TRUE
 279  *    Failure: FALSE
 280  */
 281 BOOL WINAPI GetExitCodeThread(
 282     HANDLE hthread, /* [in]  Handle to thread */
 283     LPDWORD exitcode) /* [out] Address to receive termination status */
 284 {
 285     THREAD_BASIC_INFORMATION info;
 286     NTSTATUS status = NtQueryInformationThread( hthread, ThreadBasicInformation,
 287                                                 &info, sizeof(info), NULL );
 288
 289     if (status)
 290     {
 291         SetLastError( RtlNtStatusToDosError(status) );
 292         return FALSE;
 293     }
 294     if (exitcode) *exitcode = info.ExitStatus;
 295     return TRUE;
 296 }
 297
 298
 299 /***********************************************************************
 300  * SetThreadContext [KERNEL32.@]  Sets context of thread.
 301  *
 302  * RETURNS
 303  *    Success: TRUE
 304  *    Failure: FALSE
 305  */
 306 BOOL WINAPI SetThreadContext( HANDLE handle,           /* [in]  Handle to thread with context */
 307                               const CONTEXT *context ) /* [in] Address of context structure */
 308 {
 309     NTSTATUS status = NtSetContextThread( handle, context );
 310     if (status) SetLastError( RtlNtStatusToDosError(status) );
 311     return !status;
 312 }
 313
 314
 315 /***********************************************************************
 316  * GetThreadContext [KERNEL32.@]  Retrieves context of thread.
 317  *
 318  * RETURNS
 319  *    Success: TRUE
 320  *    Failure: FALSE
 321  */
 322 BOOL WINAPI GetThreadContext( HANDLE handle,     /* [in]  Handle to thread with context */
 323                               CONTEXT *context ) /* [out] Address of context structure */
 324 {
 325     NTSTATUS status = NtGetContextThread( handle, context );
 326     if (status) SetLastError( RtlNtStatusToDosError(status) );
 327     return !status;
 328 }
 329
 330
 331 /**********************************************************************
 332  * SuspendThread [KERNEL32.@]  Suspends a thread.
 333  *
 334  * RETURNS
 335  *    Success: Previous suspend count
 336  *    Failure: 0xFFFFFFFF
 337  */
 338 DWORD WINAPI SuspendThread( HANDLE hthread ) /* [in] Handle to the thread */
 339 {
 340     DWORD ret;
 341     NTSTATUS status = NtSuspendThread( hthread, &ret );
 342
 343     if (status)
 344     {
 345         ret = ~0U;
 346         SetLastError( RtlNtStatusToDosError(status) );
 347     }
 348     return ret;
 349 }
 350
 351
 352 /**********************************************************************
 353  * ResumeThread [KERNEL32.@]  Resumes a thread.
 354  *
 355  * Decrements a thread's suspend count.  When count is zero, the
 356  * execution of the thread is resumed.
 357  *
 358  * RETURNS
 359  *    Success: Previous suspend count
 360  *    Failure: 0xFFFFFFFF
 361  *    Already running: 0
 362  */
 363 DWORD WINAPI ResumeThread( HANDLE hthread ) /* [in] Identifies thread to restart */
 364 {
 365     DWORD ret;
 366     NTSTATUS status = NtResumeThread( hthread, &ret );
 367
 368     if (status)
 369     {
 370         ret = ~0U;
 371         SetLastError( RtlNtStatusToDosError(status) );
 372     }
 373     return ret;
 374 }
 375
 376
 377 /**********************************************************************
 378  * GetThreadPriority [KERNEL32.@]  Returns priority for thread.
 379  *
 380  * RETURNS
 381  *    Success: Thread's priority level.
 382  *    Failure: THREAD_PRIORITY_ERROR_RETURN
 383  */
 384 INT WINAPI GetThreadPriority(
 385     HANDLE hthread) /* [in] Handle to thread */
 386 {
 387     THREAD_BASIC_INFORMATION info;
 388     NTSTATUS status = NtQueryInformationThread( hthread, ThreadBasicInformation,
 389                                                 &info, sizeof(info), NULL );
 390
 391     if (status)
 392     {
 393         SetLastError( RtlNtStatusToDosError(status) );
 394         return THREAD_PRIORITY_ERROR_RETURN;
 395     }
 396     return info.Priority;
 397 }
 398
 399
 400 /**********************************************************************
 401  * SetThreadPriority [KERNEL32.@]  Sets priority for thread.
 402  *
 403  * RETURNS
 404  *    Success: TRUE
 405  *    Failure: FALSE
 406  */
 407 BOOL WINAPI SetThreadPriority(
 408     HANDLE hthread, /* [in] Handle to thread */
 409     INT priority)   /* [in] Thread priority level */
 410 {
 411     BOOL ret;
 412     SERVER_START_REQ( set_thread_info )
 413     {
 414         req->handle   = hthread;
 415         req->priority = priority;
 416         req->mask     = SET_THREAD_INFO_PRIORITY;
 417         ret = !wine_server_call_err( req );
 418     }
 419     SERVER_END_REQ;
 420     return ret;
 421 }
 422
 423
 424 /**********************************************************************
 425  * GetThreadPriorityBoost [KERNEL32.@]  Returns priority boost for thread.
 426  *
 427  * Always reports that priority boost is disabled.
 428  *
 429  * RETURNS
 430  *    Success: TRUE.
 431  *    Failure: FALSE
 432  */
 433 BOOL WINAPI GetThreadPriorityBoost(
 434     HANDLE hthread, /* [in] Handle to thread */
 435     PBOOL pstate)   /* [out] pointer to var that receives the boost state */
 436 {
 437     if (pstate) *pstate = FALSE;
 438     return NO_ERROR;
 439 }
 440
 441
 442 /**********************************************************************
 443  * SetThreadPriorityBoost [KERNEL32.@]  Sets priority boost for thread.
 444  *
 445  * Priority boost is not implemented. Thsi function always returns
 446  * FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
 447  *
 448  * RETURNS
 449  *    Always returns FALSE to indicate a failure
 450  */
 451 BOOL WINAPI SetThreadPriorityBoost(
 452     HANDLE hthread, /* [in] Handle to thread */
 453     BOOL disable)   /* [in] TRUE to disable priority boost */
 454 {
 455     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 456     return FALSE;
 457 }
 458
 459
 460 /**********************************************************************
 461  *           SetThreadAffinityMask   (KERNEL32.@)
 462  */
 463 DWORD WINAPI SetThreadAffinityMask( HANDLE hThread, DWORD dwThreadAffinityMask )
 464 {
 465     DWORD ret;
 466     SERVER_START_REQ( set_thread_info )
 467     {
 468         req->handle   = hThread;
 469         req->affinity = dwThreadAffinityMask;
 470         req->mask     = SET_THREAD_INFO_AFFINITY;
 471         ret = !wine_server_call_err( req );
 472         /* FIXME: should return previous value */
 473     }
 474     SERVER_END_REQ;
 475     return ret;
 476 }
 477
 478
 479 /**********************************************************************
 480  * SetThreadIdealProcessor [KERNEL32.@]  Obtains timing information.
 481  *
 482  * RETURNS
 483  *    Success: Value of last call to SetThreadIdealProcessor
 484  *    Failure: -1
 485  */
 486 DWORD WINAPI SetThreadIdealProcessor(
 487     HANDLE hThread,          /* [in] Specifies the thread of interest */
 488     DWORD dwIdealProcessor)  /* [in] Specifies the new preferred processor */
 489 {
 490     FIXME("(%p): stub\n",hThread);
 491     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 492     return -1L;
 493 }
 494
 495
 496 /* callback for QueueUserAPC */
 497 static void CALLBACK call_user_apc( ULONG_PTR arg1, ULONG_PTR arg2, ULONG_PTR arg3 )
 498 {
 499     PAPCFUNC func = (PAPCFUNC)arg1;
 500     func( arg2 );
 501 }
 502
 503 /***********************************************************************
 504  *              QueueUserAPC  (KERNEL32.@)
 505  */
 506 DWORD WINAPI QueueUserAPC( PAPCFUNC func, HANDLE hthread, ULONG_PTR data )
 507 {
 508     NTSTATUS status = NtQueueApcThread( hthread, call_user_apc, (ULONG_PTR)func, data, 0 );
 509
 510     if (status) SetLastError( RtlNtStatusToDosError(status) );
 511     return !status;
 512 }
 513
 514
 515 /**********************************************************************
 516  * GetThreadTimes [KERNEL32.@]  Obtains timing information.
 517  *
 518  * RETURNS
 519  *    Success: TRUE
 520  *    Failure: FALSE
 521  */
 522 BOOL WINAPI GetThreadTimes(
 523     HANDLE thread,         /* [in]  Specifies the thread of interest */
 524     LPFILETIME creationtime, /* [out] When the thread was created */
 525     LPFILETIME exittime,     /* [out] When the thread was destroyed */
 526     LPFILETIME kerneltime,   /* [out] Time thread spent in kernel mode */
 527     LPFILETIME usertime)     /* [out] Time thread spent in user mode */
 528 {
 529     BOOL ret = TRUE;
 530
 531     if (creationtime || exittime)
 532     {
 533         /* We need to do a server call to get the creation time or exit time */
 534         /* This works on any thread */
 535
 536         SERVER_START_REQ( get_thread_info )
 537         {
 538             req->handle = thread;
 539             req->tid_in = 0;
 540             if ((ret = !wine_server_call_err( req )))
 541             {
 542                 if (creationtime)
 543                     RtlSecondsSince1970ToTime( reply->creation_time, (LARGE_INTEGER*)creationtime );
 544                 if (exittime)
 545                     RtlSecondsSince1970ToTime( reply->exit_time, (LARGE_INTEGER*)exittime );
 546             }
 547         }
 548         SERVER_END_REQ;
 549     }
 550     if (ret && (kerneltime || usertime))
 551     {
 552         /* We call times(2) for kernel time or user time */
 553         /* We can only (portably) do this for the current thread */
 554         if (thread == GetCurrentThread())
 555         {
 556             ULONGLONG time;
 557             struct tms time_buf;
 558             long clocks_per_sec = sysconf(_SC_CLK_TCK);
 559
 560             times(&time_buf);
 561             if (kerneltime)
 562             {
 563                 time = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
 564                 kerneltime->dwHighDateTime = time >> 32;
 565                 kerneltime->dwLowDateTime = (DWORD)time;
 566             }
 567             if (usertime)
 568             {
 569                 time = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
 570                 usertime->dwHighDateTime = time >> 32;
 571                 usertime->dwLowDateTime = (DWORD)time;
 572             }
 573         }
 574         else
 575         {
 576             if (kerneltime) kerneltime->dwHighDateTime = kerneltime->dwLowDateTime = 0;
 577             if (usertime) usertime->dwHighDateTime = usertime->dwLowDateTime = 0;
 578             FIXME("Cannot get kerneltime or usertime of other threads\n");
 579         }
 580     }
 581     return ret;
 582 }
 583
 584
 585 /**********************************************************************
 586  * VWin32_BoostThreadGroup [KERNEL.535]
 587  */
 588 VOID WINAPI VWin32_BoostThreadGroup( DWORD threadId, INT boost )
 589 {
 590     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 591 }
 592
 593
 594 /**********************************************************************
 595  * VWin32_BoostThreadStatic [KERNEL.536]
 596  */
 597 VOID WINAPI VWin32_BoostThreadStatic( DWORD threadId, INT boost )
 598 {
 599     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 600 }
 601
 602
 603 /***********************************************************************
 604  * GetCurrentThread [KERNEL32.@]  Gets pseudohandle for current thread
 605  *
 606  * RETURNS
 607  *    Pseudohandle for the current thread
 608  */
 609 #undef GetCurrentThread
 610 HANDLE WINAPI GetCurrentThread(void)
 611 {
 612     return (HANDLE)0xfffffffe;
 613 }
 614
 615
 616 #ifdef __i386__
 617
 618 /***********************************************************************
 619  *              SetLastError (KERNEL.147)
 620  *              SetLastError (KERNEL32.@)
 621  */
 622 /* void WINAPI SetLastError( DWORD error ); */
 623 __ASM_GLOBAL_FUNC( SetLastError,
 624                    "movl 4(%esp),%eax\n\t"
 625                    ".byte 0x64\n\t"
 626                    "movl %eax,0x34\n\t"
 627                    "ret $4" );
 628
 629 /***********************************************************************
 630  *              GetLastError (KERNEL.148)
 631  *              GetLastError (KERNEL32.@)
 632  */
 633 /* DWORD WINAPI GetLastError(void); */
 634 __ASM_GLOBAL_FUNC( GetLastError, ".byte 0x64\n\tmovl 0x34,%eax\n\tret" );
 635
 636 /***********************************************************************
 637  *              GetCurrentProcessId (KERNEL.471)
 638  *              GetCurrentProcessId (KERNEL32.@)
 639  */
 640 /* DWORD WINAPI GetCurrentProcessId(void) */
 641 __ASM_GLOBAL_FUNC( GetCurrentProcessId, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" );
 642
 643 /***********************************************************************
 644  *              GetCurrentThreadId (KERNEL.462)
 645  *              GetCurrentThreadId (KERNEL32.@)
 646  */
 647 /* DWORD WINAPI GetCurrentThreadId(void) */
 648 __ASM_GLOBAL_FUNC( GetCurrentThreadId, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" );
 649
 650 #else  /* __i386__ */
 651
 652 /**********************************************************************
 653  *              SetLastError (KERNEL.147)
 654  *              SetLastError (KERNEL32.@)
 655  *
 656  * Sets the last-error code.
 657  */
 658 void WINAPI SetLastError( DWORD error ) /* [in] Per-thread error code */
 659 {
 660     NtCurrentTeb()->LastErrorValue = error;
 661 }
 662
 663 /**********************************************************************
 664  *              GetLastError (KERNEL.148)
 665  *              GetLastError (KERNEL32.@)
 666  *
 667  * Returns last-error code.
 668  */
 669 DWORD WINAPI GetLastError(void)
 670 {
 671     return NtCurrentTeb()->LastErrorValue;
 672 }
 673
 674 /***********************************************************************
 675  *              GetCurrentProcessId (KERNEL.471)
 676  *              GetCurrentProcessId (KERNEL32.@)
 677  *
 678  * Returns process identifier.
 679  */
 680 DWORD WINAPI GetCurrentProcessId(void)
 681 {
 682     return (DWORD)NtCurrentTeb()->ClientId.UniqueProcess;
 683 }
 684
 685 /***********************************************************************
 686  *              GetCurrentThreadId (KERNEL.462)
 687  *              GetCurrentThreadId (KERNEL32.@)
 688  *
 689  * Returns thread identifier.
 690  */
 691 DWORD WINAPI GetCurrentThreadId(void)
 692 {
 693     return (DWORD)NtCurrentTeb()->ClientId.UniqueThread;
 694 }
 695
 696 #endif  /* __i386__ */