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, but we return TRUE
 361  * anyway because some games crash otherwise.
 362  */
 363 BOOL WINAPI SetThreadPriorityBoost(
 364     HANDLE hthread, /* [in] Handle to thread */
 365     BOOL disable)   /* [in] TRUE to disable priority boost */
 366 {
 367     return TRUE;
 368 }
 369
 370
 371 /**********************************************************************
 372  *           SetThreadStackGuarantee   (KERNEL32.@)
 373  */
 374 BOOL WINAPI SetThreadStackGuarantee(PULONG stacksize)
 375 {
 376     static int once;
 377     if (once++ == 0)
 378         FIXME("(%p): stub\n", stacksize);
 379     return TRUE;
 380 }
 381
 382 /**********************************************************************
 383  *           SetThreadAffinityMask   (KERNEL32.@)
 384  */
 385 DWORD_PTR WINAPI SetThreadAffinityMask( HANDLE hThread, DWORD_PTR dwThreadAffinityMask )
 386 {
 387     NTSTATUS                    status;
 388     THREAD_BASIC_INFORMATION    tbi;
 389
 390     status = NtQueryInformationThread( hThread, ThreadBasicInformation,
 391                                        &tbi, sizeof(tbi), NULL );
 392     if (status)
 393     {
 394         SetLastError( RtlNtStatusToDosError(status) );
 395         return 0;
 396     }
 397     status = NtSetInformationThread( hThread, ThreadAffinityMask,
 398                                      &dwThreadAffinityMask,
 399                                      sizeof(dwThreadAffinityMask));
 400     if (status)
 401     {
 402         SetLastError( RtlNtStatusToDosError(status) );
 403         return 0;
 404     }
 405     return tbi.AffinityMask;
 406 }
 407
 408
 409 /**********************************************************************
 410  * SetThreadIdealProcessor [KERNEL32.@]  Sets preferred processor for thread.
 411  *
 412  * RETURNS
 413  *    Success: Value of last call to SetThreadIdealProcessor
 414  *    Failure: -1
 415  */
 416 DWORD WINAPI SetThreadIdealProcessor(
 417     HANDLE hThread,          /* [in] Specifies the thread of interest */
 418     DWORD dwIdealProcessor)  /* [in] Specifies the new preferred processor */
 419 {
 420     FIXME("(%p): stub\n",hThread);
 421     if (dwIdealProcessor > MAXIMUM_PROCESSORS)
 422     {
 423         SetLastError(ERROR_INVALID_PARAMETER);
 424         return ~0u;
 425     }
 426     return 0;
 427 }
 428
 429
 430 /***********************************************************************
 431  *           GetThreadSelectorEntry   (KERNEL32.@)
 432  */
 433 BOOL WINAPI GetThreadSelectorEntry( HANDLE hthread, DWORD sel, LPLDT_ENTRY ldtent )
 434 {
 435     THREAD_DESCRIPTOR_INFORMATION tdi;
 436     NTSTATUS status;
 437
 438     tdi.Selector = sel;
 439     status = NtQueryInformationThread( hthread, ThreadDescriptorTableEntry, &tdi, sizeof(tdi), NULL);
 440     if (status)
 441     {
 442         SetLastError( RtlNtStatusToDosError(status) );
 443         return FALSE;
 444     }
 445     *ldtent = tdi.Entry;
 446     return TRUE;
 447 }
 448
 449
 450 /* callback for QueueUserAPC */
 451 static void CALLBACK call_user_apc( ULONG_PTR arg1, ULONG_PTR arg2, ULONG_PTR arg3 )
 452 {
 453     PAPCFUNC func = (PAPCFUNC)arg1;
 454     func( arg2 );
 455 }
 456
 457 /***********************************************************************
 458  *              QueueUserAPC  (KERNEL32.@)
 459  */
 460 DWORD WINAPI QueueUserAPC( PAPCFUNC func, HANDLE hthread, ULONG_PTR data )
 461 {
 462     NTSTATUS status = NtQueueApcThread( hthread, call_user_apc, (ULONG_PTR)func, data, 0 );
 463
 464     if (status) SetLastError( RtlNtStatusToDosError(status) );
 465     return !status;
 466 }
 467
 468 /***********************************************************************
 469  *              QueueUserWorkItem  (KERNEL32.@)
 470  */
 471 BOOL WINAPI QueueUserWorkItem( LPTHREAD_START_ROUTINE Function, PVOID Context, ULONG Flags )
 472 {
 473     NTSTATUS status;
 474
 475     TRACE("(%p,%p,0x%08x)\n", Function, Context, Flags);
 476
 477     status = RtlQueueWorkItem( Function, Context, Flags );
 478
 479     if (status) SetLastError( RtlNtStatusToDosError(status) );
 480     return !status;
 481 }
 482
 483 /**********************************************************************
 484  * GetThreadTimes [KERNEL32.@]  Obtains timing information.
 485  *
 486  * RETURNS
 487  *    Success: TRUE
 488  *    Failure: FALSE
 489  */
 490 BOOL WINAPI GetThreadTimes(
 491     HANDLE thread,         /* [in]  Specifies the thread of interest */
 492     LPFILETIME creationtime, /* [out] When the thread was created */
 493     LPFILETIME exittime,     /* [out] When the thread was destroyed */
 494     LPFILETIME kerneltime,   /* [out] Time thread spent in kernel mode */
 495     LPFILETIME usertime)     /* [out] Time thread spent in user mode */
 496 {
 497     KERNEL_USER_TIMES   kusrt;
 498     NTSTATUS            status;
 499
 500     status = NtQueryInformationThread(thread, ThreadTimes, &kusrt,
 501                                       sizeof(kusrt), NULL);
 502     if (status)
 503     {
 504         SetLastError( RtlNtStatusToDosError(status) );
 505         return FALSE;
 506     }
 507     if (creationtime)
 508     {
 509         creationtime->dwLowDateTime = kusrt.CreateTime.u.LowPart;
 510         creationtime->dwHighDateTime = kusrt.CreateTime.u.HighPart;
 511     }
 512     if (exittime)
 513     {
 514         exittime->dwLowDateTime = kusrt.ExitTime.u.LowPart;
 515         exittime->dwHighDateTime = kusrt.ExitTime.u.HighPart;
 516     }
 517     if (kerneltime)
 518     {
 519         kerneltime->dwLowDateTime = kusrt.KernelTime.u.LowPart;
 520         kerneltime->dwHighDateTime = kusrt.KernelTime.u.HighPart;
 521     }
 522     if (usertime)
 523     {
 524         usertime->dwLowDateTime = kusrt.UserTime.u.LowPart;
 525         usertime->dwHighDateTime = kusrt.UserTime.u.HighPart;
 526     }
 527
 528     return TRUE;
 529 }
 530
 531 /**********************************************************************
 532  * GetThreadId [KERNEL32.@]
 533  *
 534  * Retrieve the identifier of a thread.
 535  *
 536  * PARAMS
 537  *  Thread [I] The thread to retrieve the identifier of.
 538  *
 539  * RETURNS
 540  *    Success: Identifier of the target thread.
 541  *    Failure: 0
 542  */
 543 DWORD WINAPI GetThreadId(HANDLE Thread)
 544 {
 545     THREAD_BASIC_INFORMATION tbi;
 546     NTSTATUS status;
 547
 548     TRACE("(%p)\n", Thread);
 549
 550     status = NtQueryInformationThread(Thread, ThreadBasicInformation, &tbi,
 551                                       sizeof(tbi), NULL);
 552     if (status)
 553     {
 554         SetLastError( RtlNtStatusToDosError(status) );
 555         return 0;
 556     }
 557
 558     return HandleToULong(tbi.ClientId.UniqueThread);
 559 }
 560
 561
 562 /***********************************************************************
 563  * GetCurrentThread [KERNEL32.@]  Gets pseudohandle for current thread
 564  *
 565  * RETURNS
 566  *    Pseudohandle for the current thread
 567  */
 568 #undef GetCurrentThread
 569 HANDLE WINAPI GetCurrentThread(void)
 570 {
 571     return (HANDLE)~(ULONG_PTR)1;
 572 }
 573
 574
 575 #ifdef __i386__
 576
 577 /***********************************************************************
 578  *              SetLastError (KERNEL32.@)
 579  */
 580 /* void WINAPI SetLastError( DWORD error ); */
 581 __ASM_STDCALL_FUNC( SetLastError, 4,
 582                    "movl 4(%esp),%eax\n\t"
 583                    ".byte 0x64\n\t"
 584                    "movl %eax,0x34\n\t"
 585                    "ret $4" )
 586
 587 /***********************************************************************
 588  *              GetLastError (KERNEL32.@)
 589  */
 590 /* DWORD WINAPI GetLastError(void); */
 591 __ASM_STDCALL_FUNC( GetLastError, 0, ".byte 0x64\n\tmovl 0x34,%eax\n\tret" )
 592
 593 /***********************************************************************
 594  *              GetCurrentProcessId (KERNEL32.@)
 595  */
 596 /* DWORD WINAPI GetCurrentProcessId(void) */
 597 __ASM_STDCALL_FUNC( GetCurrentProcessId, 0, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" )
 598
 599 /***********************************************************************
 600  *              GetCurrentThreadId (KERNEL32.@)
 601  */
 602 /* DWORD WINAPI GetCurrentThreadId(void) */
 603 __ASM_STDCALL_FUNC( GetCurrentThreadId, 0, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" )
 604
 605 /***********************************************************************
 606  *              GetProcessHeap (KERNEL32.@)
 607  */
 608 /* HANDLE WINAPI GetProcessHeap(void) */
 609 __ASM_STDCALL_FUNC( GetProcessHeap, 0, ".byte 0x64\n\tmovl 0x30,%eax\n\tmovl 0x18(%eax),%eax\n\tret");
 610
 611 #elif defined(__x86_64__)
 612
 613 /***********************************************************************
 614  *              SetLastError (KERNEL32.@)
 615  */
 616 /* void WINAPI SetLastError( DWORD error ); */
 617 __ASM_STDCALL_FUNC( SetLastError, 8, ".byte 0x65\n\tmovl %ecx,0x68\n\tret" );
 618
 619 /***********************************************************************
 620  *              GetLastError (KERNEL32.@)
 621  */
 622 /* DWORD WINAPI GetLastError(void); */
 623 __ASM_STDCALL_FUNC( GetLastError, 0, ".byte 0x65\n\tmovl 0x68,%eax\n\tret" );
 624
 625 /***********************************************************************
 626  *              GetCurrentProcessId (KERNEL32.@)
 627  */
 628 /* DWORD WINAPI GetCurrentProcessId(void) */
 629 __ASM_STDCALL_FUNC( GetCurrentProcessId, 0, ".byte 0x65\n\tmovl 0x40,%eax\n\tret" );
 630
 631 /***********************************************************************
 632  *              GetCurrentThreadId (KERNEL32.@)
 633  */
 634 /* DWORD WINAPI GetCurrentThreadId(void) */
 635 __ASM_STDCALL_FUNC( GetCurrentThreadId, 0, ".byte 0x65\n\tmovl 0x48,%eax\n\tret" );
 636
 637 /***********************************************************************
 638  *              GetProcessHeap (KERNEL32.@)
 639  */
 640 /* HANDLE WINAPI GetProcessHeap(void) */
 641 __ASM_STDCALL_FUNC( GetProcessHeap, 0, ".byte 0x65\n\tmovq 0x60,%rax\n\tmovq 0x30(%rax),%rax\n\tret");
 642
 643 #else  /* __x86_64__ */
 644
 645 /**********************************************************************
 646  *              SetLastError (KERNEL32.@)
 647  *
 648  * Sets the last-error code.
 649  *
 650  * RETURNS
 651  * Nothing.
 652  */
 653 void WINAPI SetLastError( DWORD error ) /* [in] Per-thread error code */
 654 {
 655     NtCurrentTeb()->LastErrorValue = error;
 656 }
 657
 658 /**********************************************************************
 659  *              GetLastError (KERNEL32.@)
 660  *
 661  * Get the last-error code.
 662  *
 663  * RETURNS
 664  *  last-error code.
 665  */
 666 DWORD WINAPI GetLastError(void)
 667 {
 668     return NtCurrentTeb()->LastErrorValue;
 669 }
 670
 671 /***********************************************************************
 672  *              GetCurrentProcessId (KERNEL32.@)
 673  *
 674  * Get the current process identifier.
 675  *
 676  * RETURNS
 677  *  current process identifier
 678  */
 679 DWORD WINAPI GetCurrentProcessId(void)
 680 {
 681     return HandleToULong(NtCurrentTeb()->ClientId.UniqueProcess);
 682 }
 683
 684 /***********************************************************************
 685  *              GetCurrentThreadId (KERNEL32.@)
 686  *
 687  * Get the current thread identifier.
 688  *
 689  * RETURNS
 690  *  current thread identifier
 691  */
 692 DWORD WINAPI GetCurrentThreadId(void)
 693 {
 694     return HandleToULong(NtCurrentTeb()->ClientId.UniqueThread);
 695 }
 696
 697 /***********************************************************************
 698  *           GetProcessHeap    (KERNEL32.@)
 699  */
 700 HANDLE WINAPI GetProcessHeap(void)
 701 {
 702     return NtCurrentTeb()->Peb->ProcessHeap;
 703 }
 704
 705 #endif  /* __i386__ */
 706
 707 /*************************************************************************
 708  *              rtlmode_to_win32mode
 709  */
 710 static DWORD rtlmode_to_win32mode( DWORD rtlmode )
 711 {
 712     DWORD win32mode = 0;
 713
 714     if (rtlmode & 0x10)
 715         win32mode |= SEM_FAILCRITICALERRORS;
 716     if (rtlmode & 0x20)
 717         win32mode |= SEM_NOGPFAULTERRORBOX;
 718     if (rtlmode & 0x40)
 719         win32mode |= SEM_NOOPENFILEERRORBOX;
 720
 721     return win32mode;
 722 }
 723
 724 /***********************************************************************
 725  *              SetThreadErrorMode (KERNEL32.@)
 726  *
 727  * Set the thread local error mode.
 728  *
 729  * PARAMS
 730  *  mode    [I] The new error mode, a bitwise or of SEM_FAILCRITICALERRORS,
 731  *              SEM_NOGPFAULTERRORBOX and SEM_NOOPENFILEERRORBOX.
 732  *  oldmode [O] Destination of the old error mode (may be NULL)
 733  *
 734  * RETURNS
 735  *  Success: TRUE
 736  *  Failure: FALSE, check GetLastError
 737  */
 738 BOOL WINAPI SetThreadErrorMode( DWORD mode, LPDWORD oldmode )
 739 {
 740     NTSTATUS status;
 741     DWORD tmp = 0;
 742
 743     if (mode & ~(SEM_FAILCRITICALERRORS |
 744                  SEM_NOGPFAULTERRORBOX |
 745                  SEM_NOOPENFILEERRORBOX))
 746     {
 747         SetLastError( ERROR_INVALID_PARAMETER );
 748         return FALSE;
 749     }
 750
 751     if (mode & SEM_FAILCRITICALERRORS)
 752         tmp |= 0x10;
 753     if (mode & SEM_NOGPFAULTERRORBOX)
 754         tmp |= 0x20;
 755     if (mode & SEM_NOOPENFILEERRORBOX)
 756         tmp |= 0x40;
 757
 758     status = RtlSetThreadErrorMode( tmp, oldmode );
 759     if (status)
 760     {
 761         SetLastError( RtlNtStatusToDosError(status) );
 762         return FALSE;
 763     }
 764
 765     if (oldmode)
 766         *oldmode = rtlmode_to_win32mode(*oldmode);
 767
 768     return TRUE;
 769 }
 770
 771 /***********************************************************************
 772  *              GetThreadErrorMode (KERNEL32.@)
 773  *
 774  * Get the thread local error mode.
 775  *
 776  * PARAMS
 777  *  None.
 778  *
 779  * RETURNS
 780  *  The current thread local error mode.
 781  */
 782 DWORD WINAPI GetThreadErrorMode( void )
 783 {
 784     return rtlmode_to_win32mode( RtlGetThreadErrorMode() );
 785 }
 786
 787 /***********************************************************************
 788  *              GetThreadUILanguage (KERNEL32.@)
 789  *
 790  * Get the current thread's language identifier.
 791  *
 792  * PARAMS
 793  *  None.
 794  *
 795  * RETURNS
 796  *  The current thread's language identifier.
 797  */
 798 LANGID WINAPI GetThreadUILanguage( void )
 799 {
 800     LANGID lang;
 801     NtQueryDefaultUILanguage( &lang );
 802     FIXME(": stub, returning default language.\n");
 803     return lang;
 804 }
 805
 806 /***********************************************************************
 807  *              GetThreadIOPendingFlag (KERNEL32.@)
 808  */
 809 BOOL WINAPI GetThreadIOPendingFlag( HANDLE thread, PBOOL io_pending )
 810 {
 811     FIXME("%p, %p\n", thread, io_pending);
 812     *io_pending = FALSE;
 813     return TRUE;
 814 }
 815
 816 /***********************************************************************
 817  *              SetThreadPreferredUILanguages (KERNEL32.@)
 818  */
 819 BOOL WINAPI SetThreadPreferredUILanguages( DWORD flags, PCZZWSTR buffer, PULONG count )
 820 {
 821     FIXME( "%u, %p, %p\n", flags, buffer, count );
 822     return TRUE;
 823 }
 824
 825 /***********************************************************************
 826  *              GetThreadPreferredUILanguages (KERNEL32.@)
 827  */
 828 BOOL WINAPI GetThreadPreferredUILanguages( DWORD flags, PULONG count, PCZZWSTR buffer, PULONG buffersize )
 829 {
 830     FIXME( "%u, %p, %p %p\n", flags, count, buffer, buffersize );
 831     *count = 0;
 832     *buffersize = 0;
 833     return TRUE;
 834 }
 835
 836 /***********************************************************************
 837  *              InitializeSRWLock (KERNEL32.@)
 838  */
 839 VOID WINAPI InitializeSRWLock( PSRWLOCK srwlock )
 840 {
 841     FIXME( "(%p): stub\n", srwlock );
 842 }
 843
 844 /***********************************************************************
 845  *              AcquireSRWLockExclusive (KERNEL32.@)
 846  */
 847 VOID WINAPI AcquireSRWLockExclusive( PSRWLOCK srwlock )
 848 {
 849     FIXME( "(%p): stub\n", srwlock );
 850 }
 851
 852 /***********************************************************************
 853  *              ReleaseSRWLockExclusive (KERNEL32.@)
 854  */
 855 VOID WINAPI ReleaseSRWLockExclusive( PSRWLOCK srwlock )
 856 {
 857     FIXME( "(%p): stub\n", srwlock );
 858 }
 859
 860 /***********************************************************************
 861  *              AcquireSRWLockShared (KERNEL32.@)
 862  */
 863 VOID WINAPI AcquireSRWLockShared( PSRWLOCK srwlock )
 864 {
 865     FIXME( "(%p): stub\n", srwlock );
 866 }
 867
 868 /***********************************************************************
 869  *              ReleaseSRWLockShared (KERNEL32.@)
 870  */
 871 VOID WINAPI ReleaseSRWLockShared( PSRWLOCK srwlock )
 872 {
 873     FIXME( "(%p): stub\n", srwlock );
 874 }