dlls/kernel32/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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 <sys/types.h>
  28 #ifdef HAVE_UNISTD_H
  29 # include <unistd.h>
  30 #endif
  31
  32 #include "ntstatus.h"
  33 #define WIN32_NO_STATUS
  34 #include "windef.h"
  35 #include "winbase.h"
  36 #include "winerror.h"
  37 #include "winternl.h"
  38 #include "wine/exception.h"
  39 #include "wine/library.h"
  40 #include "wine/server.h"
  41 #include "wine/debug.h"
  42
  43 #include "kernel_private.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  46
  47
  48 /***********************************************************************
  49  *           CreateThread   (KERNEL32.@)
  50  */
  51 HANDLE WINAPI DECLSPEC_HOTPATCH CreateThread( SECURITY_ATTRIBUTES *sa, SIZE_T stack, LPTHREAD_START_ROUTINE start,
  52                                               LPVOID param, DWORD flags, LPDWORD id )
  53 {
  54      return CreateRemoteThread( GetCurrentProcess(),
  55                                 sa, stack, start, param, flags, id );
  56 }
  57
  58
  59 /***************************************************************************
  60  *                  CreateRemoteThread   (KERNEL32.@)
  61  *
  62  * Creates a thread that runs in the address space of another process
  63  *
  64  * PARAMS
  65  *
  66  * RETURNS
  67  *   Success: Handle to the new thread.
  68  *   Failure: NULL. Use GetLastError() to find the error cause.
  69  *
  70  * BUGS
  71  *   Improper memory allocation: there's no ability to free new_thread_info
  72  *   in other process.
  73  *   Bad start address for RtlCreateUserThread because the library
  74  *   may be loaded at different address in other process.
  75  */
  76 HANDLE WINAPI CreateRemoteThread( HANDLE hProcess, SECURITY_ATTRIBUTES *sa, SIZE_T stack,
  77                                   LPTHREAD_START_ROUTINE start, LPVOID param,
  78                                   DWORD flags, LPDWORD id )
  79 {
  80     HANDLE handle;
  81     CLIENT_ID client_id;
  82     NTSTATUS status;
  83     SIZE_T stack_reserve = 0, stack_commit = 0;
  84
  85     if (flags & STACK_SIZE_PARAM_IS_A_RESERVATION) stack_reserve = stack;
  86     else stack_commit = stack;
  87
  88     status = RtlCreateUserThread( hProcess, NULL, TRUE,
  89                                   NULL, stack_reserve, stack_commit,
  90                                   (PRTL_THREAD_START_ROUTINE)start, param, &handle, &client_id );
  91     if (status == STATUS_SUCCESS)
  92     {
  93         if (id) *id = HandleToULong(client_id.UniqueThread);
  94         if (sa && (sa->nLength >= sizeof(*sa)) && sa->bInheritHandle)
  95             SetHandleInformation( handle, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT );
  96         if (!(flags & CREATE_SUSPENDED))
  97         {
  98             ULONG ret;
  99             if (NtResumeThread( handle, &ret ))
 100             {
 101                 NtClose( handle );
 102                 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
 103                 handle = 0;
 104             }
 105         }
 106     }
 107     else
 108     {
 109         SetLastError( RtlNtStatusToDosError(status) );
 110         handle = 0;
 111     }
 112     return handle;
 113 }
 114
 115
 116 /***********************************************************************
 117  * OpenThread  [KERNEL32.@]   Retrieves a handle to a thread from its thread id
 118  */
 119 HANDLE WINAPI OpenThread( DWORD dwDesiredAccess, BOOL bInheritHandle, DWORD dwThreadId )
 120 {
 121     NTSTATUS status;
 122     HANDLE handle;
 123     OBJECT_ATTRIBUTES attr;
 124     CLIENT_ID cid;
 125
 126     attr.Length = sizeof(attr);
 127     attr.RootDirectory = 0;
 128     attr.Attributes = bInheritHandle ? OBJ_INHERIT : 0;
 129     attr.ObjectName = NULL;
 130     attr.SecurityDescriptor = NULL;
 131     attr.SecurityQualityOfService = NULL;
 132
 133     cid.UniqueProcess = 0; /* FIXME */
 134     cid.UniqueThread = ULongToHandle(dwThreadId);
 135     status = NtOpenThread( &handle, dwDesiredAccess, &attr, &cid );
 136     if (status)
 137     {
 138         SetLastError( RtlNtStatusToDosError(status) );
 139         handle = 0;
 140     }
 141     return handle;
 142 }
 143
 144
 145 /***********************************************************************
 146  * ExitThread [KERNEL32.@]  Ends a thread
 147  *
 148  * RETURNS
 149  *    None
 150  */
 151 void WINAPI ExitThread( DWORD code ) /* [in] Exit code for this thread */
 152 {
 153     RtlFreeThreadActivationContextStack();
 154     RtlExitUserThread( code );
 155 }
 156
 157
 158 /**********************************************************************
 159  * TerminateThread [KERNEL32.@]  Terminates a thread
 160  *
 161  * RETURNS
 162  *    Success: TRUE
 163  *    Failure: FALSE
 164  */
 165 BOOL WINAPI TerminateThread( HANDLE handle,    /* [in] Handle to thread */
 166                              DWORD exit_code)  /* [in] Exit code for thread */
 167 {
 168     NTSTATUS status = NtTerminateThread( handle, exit_code );
 169     if (status) SetLastError( RtlNtStatusToDosError(status) );
 170     return !status;
 171 }
 172
 173
 174 /***********************************************************************
 175  *           FreeLibraryAndExitThread (KERNEL32.@)
 176  */
 177 void WINAPI FreeLibraryAndExitThread(HINSTANCE hLibModule, DWORD dwExitCode)
 178 {
 179     FreeLibrary(hLibModule);
 180     ExitThread(dwExitCode);
 181 }
 182
 183
 184 /**********************************************************************
 185  *              GetExitCodeThread (KERNEL32.@)
 186  *
 187  * Gets termination status of thread.
 188  *
 189  * RETURNS
 190  *    Success: TRUE
 191  *    Failure: FALSE
 192  */
 193 BOOL WINAPI GetExitCodeThread(
 194     HANDLE hthread, /* [in]  Handle to thread */
 195     LPDWORD exitcode) /* [out] Address to receive termination status */
 196 {
 197     THREAD_BASIC_INFORMATION info;
 198     NTSTATUS status = NtQueryInformationThread( hthread, ThreadBasicInformation,
 199                                                 &info, sizeof(info), NULL );
 200
 201     if (status)
 202     {
 203         SetLastError( RtlNtStatusToDosError(status) );
 204         return FALSE;
 205     }
 206     if (exitcode) *exitcode = info.ExitStatus;
 207     return TRUE;
 208 }
 209
 210
 211 /***********************************************************************
 212  * SetThreadContext [KERNEL32.@]  Sets context of thread.
 213  *
 214  * RETURNS
 215  *    Success: TRUE
 216  *    Failure: FALSE
 217  */
 218 BOOL WINAPI SetThreadContext( HANDLE handle,           /* [in]  Handle to thread with context */
 219                               const CONTEXT *context ) /* [in] Address of context structure */
 220 {
 221     NTSTATUS status = NtSetContextThread( handle, context );
 222     if (status) SetLastError( RtlNtStatusToDosError(status) );
 223     return !status;
 224 }
 225
 226
 227 /***********************************************************************
 228  * GetThreadContext [KERNEL32.@]  Retrieves context of thread.
 229  *
 230  * RETURNS
 231  *    Success: TRUE
 232  *    Failure: FALSE
 233  */
 234 BOOL WINAPI GetThreadContext( HANDLE handle,     /* [in]  Handle to thread with context */
 235                               CONTEXT *context ) /* [out] Address of context structure */
 236 {
 237     NTSTATUS status = NtGetContextThread( handle, context );
 238     if (status) SetLastError( RtlNtStatusToDosError(status) );
 239     return !status;
 240 }
 241
 242
 243 /**********************************************************************
 244  * SuspendThread [KERNEL32.@]  Suspends a thread.
 245  *
 246  * RETURNS
 247  *    Success: Previous suspend count
 248  *    Failure: 0xFFFFFFFF
 249  */
 250 DWORD WINAPI SuspendThread( HANDLE hthread ) /* [in] Handle to the thread */
 251 {
 252     DWORD ret;
 253     NTSTATUS status = NtSuspendThread( hthread, &ret );
 254
 255     if (status)
 256     {
 257         ret = ~0U;
 258         SetLastError( RtlNtStatusToDosError(status) );
 259     }
 260     return ret;
 261 }
 262
 263
 264 /**********************************************************************
 265  * ResumeThread [KERNEL32.@]  Resumes a thread.
 266  *
 267  * Decrements a thread's suspend count.  When count is zero, the
 268  * execution of the thread is resumed.
 269  *
 270  * RETURNS
 271  *    Success: Previous suspend count
 272  *    Failure: 0xFFFFFFFF
 273  *    Already running: 0
 274  */
 275 DWORD WINAPI ResumeThread( HANDLE hthread ) /* [in] Identifies thread to restart */
 276 {
 277     DWORD ret;
 278     NTSTATUS status = NtResumeThread( hthread, &ret );
 279
 280     if (status)
 281     {
 282         ret = ~0U;
 283         SetLastError( RtlNtStatusToDosError(status) );
 284     }
 285     return ret;
 286 }
 287
 288
 289 /**********************************************************************
 290  * GetThreadPriority [KERNEL32.@]  Returns priority for thread.
 291  *
 292  * RETURNS
 293  *    Success: Thread's priority level.
 294  *    Failure: THREAD_PRIORITY_ERROR_RETURN
 295  */
 296 INT WINAPI GetThreadPriority(
 297     HANDLE hthread) /* [in] Handle to thread */
 298 {
 299     THREAD_BASIC_INFORMATION info;
 300     NTSTATUS status = NtQueryInformationThread( hthread, ThreadBasicInformation,
 301                                                 &info, sizeof(info), NULL );
 302
 303     if (status)
 304     {
 305         SetLastError( RtlNtStatusToDosError(status) );
 306         return THREAD_PRIORITY_ERROR_RETURN;
 307     }
 308     return info.Priority;
 309 }
 310
 311
 312 /**********************************************************************
 313  * SetThreadPriority [KERNEL32.@]  Sets priority for thread.
 314  *
 315  * RETURNS
 316  *    Success: TRUE
 317  *    Failure: FALSE
 318  */
 319 BOOL WINAPI SetThreadPriority(
 320     HANDLE hthread, /* [in] Handle to thread */
 321     INT priority)   /* [in] Thread priority level */
 322 {
 323     DWORD       prio = priority;
 324     NTSTATUS    status;
 325
 326     status = NtSetInformationThread(hthread, ThreadBasePriority,
 327                                     &prio, sizeof(prio));
 328
 329     if (status)
 330     {
 331         SetLastError( RtlNtStatusToDosError(status) );
 332         return FALSE;
 333     }
 334
 335     return TRUE;
 336 }
 337
 338
 339 /**********************************************************************
 340  * GetThreadPriorityBoost [KERNEL32.@]  Returns priority boost for thread.
 341  *
 342  * Always reports that priority boost is disabled.
 343  *
 344  * RETURNS
 345  *    Success: TRUE.
 346  *    Failure: FALSE
 347  */
 348 BOOL WINAPI GetThreadPriorityBoost(
 349     HANDLE hthread, /* [in] Handle to thread */
 350     PBOOL pstate)   /* [out] pointer to var that receives the boost state */
 351 {
 352     if (pstate) *pstate = FALSE;
 353     return TRUE;
 354 }
 355
 356
 357 /**********************************************************************
 358  * SetThreadPriorityBoost [KERNEL32.@]  Sets priority boost for thread.
 359  *
 360  * Priority boost is not implemented. This function always returns
 361  * FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
 362  *
 363  * RETURNS
 364  *    Always returns FALSE to indicate a failure
 365  */
 366 BOOL WINAPI SetThreadPriorityBoost(
 367     HANDLE hthread, /* [in] Handle to thread */
 368     BOOL disable)   /* [in] TRUE to disable priority boost */
 369 {
 370     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 371     return FALSE;
 372 }
 373
 374
 375 /**********************************************************************
 376  *           SetThreadAffinityMask   (KERNEL32.@)
 377  */
 378 DWORD_PTR WINAPI SetThreadAffinityMask( HANDLE hThread, DWORD_PTR dwThreadAffinityMask )
 379 {
 380     NTSTATUS                    status;
 381     THREAD_BASIC_INFORMATION    tbi;
 382
 383     status = NtQueryInformationThread( hThread, ThreadBasicInformation,
 384                                        &tbi, sizeof(tbi), NULL );
 385     if (status)
 386     {
 387         SetLastError( RtlNtStatusToDosError(status) );
 388         return 0;
 389     }
 390     status = NtSetInformationThread( hThread, ThreadAffinityMask,
 391                                      &dwThreadAffinityMask,
 392                                      sizeof(dwThreadAffinityMask));
 393     if (status)
 394     {
 395         SetLastError( RtlNtStatusToDosError(status) );
 396         return 0;
 397     }
 398     return tbi.AffinityMask;
 399 }
 400
 401
 402 /**********************************************************************
 403  * SetThreadIdealProcessor [KERNEL32.@]  Sets preferred processor for thread.
 404  *
 405  * RETURNS
 406  *    Success: Value of last call to SetThreadIdealProcessor
 407  *    Failure: -1
 408  */
 409 DWORD WINAPI SetThreadIdealProcessor(
 410     HANDLE hThread,          /* [in] Specifies the thread of interest */
 411     DWORD dwIdealProcessor)  /* [in] Specifies the new preferred processor */
 412 {
 413     FIXME("(%p): stub\n",hThread);
 414     if (dwIdealProcessor > MAXIMUM_PROCESSORS)
 415     {
 416         SetLastError(ERROR_INVALID_PARAMETER);
 417         return ~0u;
 418     }
 419     return 0;
 420 }
 421
 422
 423 /***********************************************************************
 424  *           GetThreadSelectorEntry   (KERNEL32.@)
 425  */
 426 BOOL WINAPI GetThreadSelectorEntry( HANDLE hthread, DWORD sel, LPLDT_ENTRY ldtent )
 427 {
 428     THREAD_DESCRIPTOR_INFORMATION tdi;
 429     NTSTATUS status;
 430
 431     tdi.Selector = sel;
 432     status = NtQueryInformationThread( hthread, ThreadDescriptorTableEntry, &tdi, sizeof(tdi), NULL);
 433     if (status)
 434     {
 435         SetLastError( RtlNtStatusToDosError(status) );
 436         return FALSE;
 437     }
 438     *ldtent = tdi.Entry;
 439     return TRUE;
 440 }
 441
 442
 443 /* callback for QueueUserAPC */
 444 static void CALLBACK call_user_apc( ULONG_PTR arg1, ULONG_PTR arg2, ULONG_PTR arg3 )
 445 {
 446     PAPCFUNC func = (PAPCFUNC)arg1;
 447     func( arg2 );
 448 }
 449
 450 /***********************************************************************
 451  *              QueueUserAPC  (KERNEL32.@)
 452  */
 453 DWORD WINAPI QueueUserAPC( PAPCFUNC func, HANDLE hthread, ULONG_PTR data )
 454 {
 455     NTSTATUS status = NtQueueApcThread( hthread, call_user_apc, (ULONG_PTR)func, data, 0 );
 456
 457     if (status) SetLastError( RtlNtStatusToDosError(status) );
 458     return !status;
 459 }
 460
 461 /***********************************************************************
 462  *              QueueUserWorkItem  (KERNEL32.@)
 463  */
 464 BOOL WINAPI QueueUserWorkItem( LPTHREAD_START_ROUTINE Function, PVOID Context, ULONG Flags )
 465 {
 466     NTSTATUS status;
 467
 468     TRACE("(%p,%p,0x%08x)\n", Function, Context, Flags);
 469
 470     status = RtlQueueWorkItem( Function, Context, Flags );
 471
 472     if (status) SetLastError( RtlNtStatusToDosError(status) );
 473     return !status;
 474 }
 475
 476 /**********************************************************************
 477  * GetThreadTimes [KERNEL32.@]  Obtains timing information.
 478  *
 479  * RETURNS
 480  *    Success: TRUE
 481  *    Failure: FALSE
 482  */
 483 BOOL WINAPI GetThreadTimes(
 484     HANDLE thread,         /* [in]  Specifies the thread of interest */
 485     LPFILETIME creationtime, /* [out] When the thread was created */
 486     LPFILETIME exittime,     /* [out] When the thread was destroyed */
 487     LPFILETIME kerneltime,   /* [out] Time thread spent in kernel mode */
 488     LPFILETIME usertime)     /* [out] Time thread spent in user mode */
 489 {
 490     KERNEL_USER_TIMES   kusrt;
 491     NTSTATUS            status;
 492
 493     status = NtQueryInformationThread(thread, ThreadTimes, &kusrt,
 494                                       sizeof(kusrt), NULL);
 495     if (status)
 496     {
 497         SetLastError( RtlNtStatusToDosError(status) );
 498         return FALSE;
 499     }
 500     if (creationtime)
 501     {
 502         creationtime->dwLowDateTime = kusrt.CreateTime.u.LowPart;
 503         creationtime->dwHighDateTime = kusrt.CreateTime.u.HighPart;
 504     }
 505     if (exittime)
 506     {
 507         exittime->dwLowDateTime = kusrt.ExitTime.u.LowPart;
 508         exittime->dwHighDateTime = kusrt.ExitTime.u.HighPart;
 509     }
 510     if (kerneltime)
 511     {
 512         kerneltime->dwLowDateTime = kusrt.KernelTime.u.LowPart;
 513         kerneltime->dwHighDateTime = kusrt.KernelTime.u.HighPart;
 514     }
 515     if (usertime)
 516     {
 517         usertime->dwLowDateTime = kusrt.UserTime.u.LowPart;
 518         usertime->dwHighDateTime = kusrt.UserTime.u.HighPart;
 519     }
 520
 521     return TRUE;
 522 }
 523
 524 /**********************************************************************
 525  * GetThreadId [KERNEL32.@]
 526  *
 527  * Retrieve the identifier of a thread.
 528  *
 529  * PARAMS
 530  *  Thread [I] The thread to retrieve the identifier of.
 531  *
 532  * RETURNS
 533  *    Success: Identifier of the target thread.
 534  *    Failure: 0
 535  */
 536 DWORD WINAPI GetThreadId(HANDLE Thread)
 537 {
 538     THREAD_BASIC_INFORMATION tbi;
 539     NTSTATUS status;
 540
 541     TRACE("(%p)\n", Thread);
 542
 543     status = NtQueryInformationThread(Thread, ThreadBasicInformation, &tbi,
 544                                       sizeof(tbi), NULL);
 545     if (status)
 546     {
 547         SetLastError( RtlNtStatusToDosError(status) );
 548         return 0;
 549     }
 550
 551     return HandleToULong(tbi.ClientId.UniqueThread);
 552 }
 553
 554
 555 /***********************************************************************
 556  * GetCurrentThread [KERNEL32.@]  Gets pseudohandle for current thread
 557  *
 558  * RETURNS
 559  *    Pseudohandle for the current thread
 560  */
 561 #undef GetCurrentThread
 562 HANDLE WINAPI GetCurrentThread(void)
 563 {
 564     return (HANDLE)~(ULONG_PTR)1;
 565 }
 566
 567
 568 #ifdef __i386__
 569
 570 /***********************************************************************
 571  *              SetLastError (KERNEL32.@)
 572  */
 573 /* void WINAPI SetLastError( DWORD error ); */
 574 __ASM_STDCALL_FUNC( SetLastError, 4,
 575                    "movl 4(%esp),%eax\n\t"
 576                    ".byte 0x64\n\t"
 577                    "movl %eax,0x34\n\t"
 578                    "ret $4" )
 579
 580 /***********************************************************************
 581  *              GetLastError (KERNEL32.@)
 582  */
 583 /* DWORD WINAPI GetLastError(void); */
 584 __ASM_STDCALL_FUNC( GetLastError, 0, ".byte 0x64\n\tmovl 0x34,%eax\n\tret" )
 585
 586 /***********************************************************************
 587  *              GetCurrentProcessId (KERNEL32.@)
 588  */
 589 /* DWORD WINAPI GetCurrentProcessId(void) */
 590 __ASM_STDCALL_FUNC( GetCurrentProcessId, 0, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" )
 591
 592 /***********************************************************************
 593  *              GetCurrentThreadId (KERNEL32.@)
 594  */
 595 /* DWORD WINAPI GetCurrentThreadId(void) */
 596 __ASM_STDCALL_FUNC( GetCurrentThreadId, 0, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" )
 597
 598 /***********************************************************************
 599  *              GetProcessHeap (KERNEL32.@)
 600  */
 601 /* HANDLE WINAPI GetProcessHeap(void) */
 602 __ASM_STDCALL_FUNC( GetProcessHeap, 0, ".byte 0x64\n\tmovl 0x30,%eax\n\tmovl 0x18(%eax),%eax\n\tret");
 603
 604 #elif defined(__x86_64__)
 605
 606 /***********************************************************************
 607  *              SetLastError (KERNEL32.@)
 608  */
 609 /* void WINAPI SetLastError( DWORD error ); */
 610 __ASM_STDCALL_FUNC( SetLastError, 8, ".byte 0x65\n\tmovl %ecx,0x68\n\tret" );
 611
 612 /***********************************************************************
 613  *              GetLastError (KERNEL32.@)
 614  */
 615 /* DWORD WINAPI GetLastError(void); */
 616 __ASM_STDCALL_FUNC( GetLastError, 0, ".byte 0x65\n\tmovl 0x68,%eax\n\tret" );
 617
 618 /***********************************************************************
 619  *              GetCurrentProcessId (KERNEL32.@)
 620  */
 621 /* DWORD WINAPI GetCurrentProcessId(void) */
 622 __ASM_STDCALL_FUNC( GetCurrentProcessId, 0, ".byte 0x65\n\tmovl 0x40,%eax\n\tret" );
 623
 624 /***********************************************************************
 625  *              GetCurrentThreadId (KERNEL32.@)
 626  */
 627 /* DWORD WINAPI GetCurrentThreadId(void) */
 628 __ASM_STDCALL_FUNC( GetCurrentThreadId, 0, ".byte 0x65\n\tmovl 0x48,%eax\n\tret" );
 629
 630 /***********************************************************************
 631  *              GetProcessHeap (KERNEL32.@)
 632  */
 633 /* HANDLE WINAPI GetProcessHeap(void) */
 634 __ASM_STDCALL_FUNC( GetProcessHeap, 0, ".byte 0x65\n\tmovq 0x60,%rax\n\tmovq 0x30(%rax),%rax\n\tret");
 635
 636 #else  /* __x86_64__ */
 637
 638 /**********************************************************************
 639  *              SetLastError (KERNEL32.@)
 640  *
 641  * Sets the last-error code.
 642  *
 643  * RETURNS
 644  * Nothing.
 645  */
 646 void WINAPI SetLastError( DWORD error ) /* [in] Per-thread error code */
 647 {
 648     NtCurrentTeb()->LastErrorValue = error;
 649 }
 650
 651 /**********************************************************************
 652  *              GetLastError (KERNEL32.@)
 653  *
 654  * Get the last-error code.
 655  *
 656  * RETURNS
 657  *  last-error code.
 658  */
 659 DWORD WINAPI GetLastError(void)
 660 {
 661     return NtCurrentTeb()->LastErrorValue;
 662 }
 663
 664 /***********************************************************************
 665  *              GetCurrentProcessId (KERNEL32.@)
 666  *
 667  * Get the current process identifier.
 668  *
 669  * RETURNS
 670  *  current process identifier
 671  */
 672 DWORD WINAPI GetCurrentProcessId(void)
 673 {
 674     return HandleToULong(NtCurrentTeb()->ClientId.UniqueProcess);
 675 }
 676
 677 /***********************************************************************
 678  *              GetCurrentThreadId (KERNEL32.@)
 679  *
 680  * Get the current thread identifier.
 681  *
 682  * RETURNS
 683  *  current thread identifier
 684  */
 685 DWORD WINAPI GetCurrentThreadId(void)
 686 {
 687     return HandleToULong(NtCurrentTeb()->ClientId.UniqueThread);
 688 }
 689
 690 /***********************************************************************
 691  *           GetProcessHeap    (KERNEL32.@)
 692  */
 693 HANDLE WINAPI GetProcessHeap(void)
 694 {
 695     return NtCurrentTeb()->Peb->ProcessHeap;
 696 }
 697
 698 #endif  /* __i386__ */
 699
 700 /*************************************************************************
 701  *              rtlmode_to_win32mode
 702  */
 703 static DWORD rtlmode_to_win32mode( DWORD rtlmode )
 704 {
 705     DWORD win32mode = 0;
 706
 707     if (rtlmode & 0x10)
 708         win32mode |= SEM_FAILCRITICALERRORS;
 709     if (rtlmode & 0x20)
 710         win32mode |= SEM_NOGPFAULTERRORBOX;
 711     if (rtlmode & 0x40)
 712         win32mode |= SEM_NOOPENFILEERRORBOX;
 713
 714     return win32mode;
 715 }
 716
 717 /***********************************************************************
 718  *              SetThreadErrorMode (KERNEL32.@)
 719  *
 720  * Set the thread local error mode.
 721  *
 722  * PARAMS
 723  *  mode    [I] The new error mode, a bitwise or of SEM_FAILCRITICALERRORS,
 724  *              SEM_NOGPFAULTERRORBOX and SEM_NOOPENFILEERRORBOX.
 725  *  oldmode [O] Destination of the old error mode (may be NULL)
 726  *
 727  * RETURNS
 728  *  Success: TRUE
 729  *  Failure: FALSE, check GetLastError
 730  */
 731 BOOL WINAPI SetThreadErrorMode( DWORD mode, LPDWORD oldmode )
 732 {
 733     NTSTATUS status;
 734     DWORD tmp = 0;
 735
 736     if (mode & ~(SEM_FAILCRITICALERRORS |
 737                  SEM_NOGPFAULTERRORBOX |
 738                  SEM_NOOPENFILEERRORBOX))
 739     {
 740         SetLastError( ERROR_INVALID_PARAMETER );
 741         return FALSE;
 742     }
 743
 744     if (mode & SEM_FAILCRITICALERRORS)
 745         tmp |= 0x10;
 746     if (mode & SEM_NOGPFAULTERRORBOX)
 747         tmp |= 0x20;
 748     if (mode & SEM_NOOPENFILEERRORBOX)
 749         tmp |= 0x40;
 750
 751     status = RtlSetThreadErrorMode( tmp, oldmode );
 752     if (status)
 753     {
 754         SetLastError( RtlNtStatusToDosError(status) );
 755         return FALSE;
 756     }
 757
 758     if (oldmode)
 759         *oldmode = rtlmode_to_win32mode(*oldmode);
 760
 761     return TRUE;
 762 }
 763
 764 /***********************************************************************
 765  *              GetThreadErrorMode (KERNEL32.@)
 766  *
 767  * Get the thread local error mode.
 768  *
 769  * PARAMS
 770  *  None.
 771  *
 772  * RETURNS
 773  *  The current thread local error mode.
 774  */
 775 DWORD WINAPI GetThreadErrorMode( void )
 776 {
 777     return rtlmode_to_win32mode( RtlGetThreadErrorMode() );
 778 }
 779
 780 /***********************************************************************
 781  *              GetThreadUILanguage (KERNEL32.@)
 782  *
 783  * Get the current thread's language identifier.
 784  *
 785  * PARAMS
 786  *  None.
 787  *
 788  * RETURNS
 789  *  The current thread's language identifier.
 790  */
 791 LANGID WINAPI GetThreadUILanguage( void )
 792 {
 793     LANGID lang;
 794     NtQueryDefaultUILanguage( &lang );
 795     FIXME(": stub, returning default language.\n");
 796     return lang;
 797 }
 798
 799 /***********************************************************************
 800  *              GetThreadIOPendingFlag (KERNEL32.@)
 801  */
 802 BOOL WINAPI GetThreadIOPendingFlag( HANDLE thread, PBOOL io_pending )
 803 {
 804     FIXME("%p, %p\n", thread, io_pending);
 805     *io_pending = FALSE;
 806     return TRUE;
 807 }
 808
 809 /***********************************************************************
 810  *              SetThreadPreferredUILanguages (KERNEL32.@)
 811  */
 812 BOOL WINAPI SetThreadPreferredUILanguages( DWORD flags, PCZZWSTR buffer, PULONG count )
 813 {
 814     FIXME( "%u, %p, %p\n", flags, buffer, count );
 815     return TRUE;
 816 }