scheduler/thread.c

   1 /*
   2  * Win32 threads
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  */
   6
   7 #include "config.h"
   8
   9 #include <assert.h>
  10 #include <fcntl.h>
  11 #include <sys/types.h>
  12 #ifdef HAVE_SYS_MMAN_H
  13 #include <sys/mman.h>
  14 #endif
  15 #include <unistd.h>
  16 #include "wine/winbase16.h"
  17 #include "wine/port.h"
  18 #include "thread.h"
  19 #include "task.h"
  20 #include "module.h"
  21 #include "winerror.h"
  22 #include "heap.h"
  23 #include "selectors.h"
  24 #include "winnt.h"
  25 #include "server.h"
  26 #include "services.h"
  27 #include "stackframe.h"
  28 #include "builtin16.h"
  29 #include "debugtools.h"
  30 #include "winnls.h"
  31
  32 DEFAULT_DEBUG_CHANNEL(thread);
  33 DECLARE_DEBUG_CHANNEL(relay);
  34
  35 /* TEB of the initial thread */
  36 static TEB initial_teb;
  37
  38 extern struct _PDB current_process;
  39
  40 /***********************************************************************
  41  *           THREAD_IsWin16
  42  */
  43 BOOL THREAD_IsWin16( TEB *teb )
  44 {
  45     return !teb || !(teb->tibflags & TEBF_WIN32);
  46 }
  47
  48 /***********************************************************************
  49  *           THREAD_IdToTEB
  50  *
  51  * Convert a thread id to a TEB, making sure it is valid.
  52  */
  53 TEB *THREAD_IdToTEB( DWORD id )
  54 {
  55     TEB *ret = NULL;
  56
  57     if (!id || id == GetCurrentThreadId()) return NtCurrentTeb();
  58
  59     SERVER_START_REQ( get_thread_info )
  60     {
  61         req->handle = 0;
  62         req->tid_in = (void *)id;
  63         if (!SERVER_CALL()) ret = req->teb;
  64     }
  65     SERVER_END_REQ;
  66
  67     if (!ret)
  68     {
  69         /* Allow task handles to be used; convert to main thread */
  70         if ( IsTask16( id ) )
  71         {
  72             TDB *pTask = TASK_GetPtr( id );
  73             if (pTask) return pTask->teb;
  74         }
  75         SetLastError( ERROR_INVALID_PARAMETER );
  76     }
  77     return ret;
  78 }
  79
  80
  81 /***********************************************************************
  82  *           THREAD_InitTEB
  83  *
  84  * Initialization of a newly created TEB.
  85  */
  86 static BOOL THREAD_InitTEB( TEB *teb )
  87 {
  88     teb->except    = (void *)~0UL;
  89     teb->self      = teb;
  90     teb->tibflags  = TEBF_WIN32;
  91     teb->tls_ptr   = teb->tls_array;
  92     teb->exit_code = STILL_ACTIVE;
  93     teb->request_fd = -1;
  94     teb->reply_fd   = -1;
  95     teb->wait_fd[0] = -1;
  96     teb->wait_fd[1] = -1;
  97     teb->stack_top  = (void *)~0UL;
  98     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
  99     teb->StaticUnicodeString.Buffer = (PWSTR)teb->StaticUnicodeBuffer;
 100     teb->teb_sel = SELECTOR_AllocBlock( teb, 0x1000, WINE_LDT_FLAGS_DATA|WINE_LDT_FLAGS_32BIT );
 101     return (teb->teb_sel != 0);
 102 }
 103
 104
 105 /***********************************************************************
 106  *           THREAD_FreeTEB
 107  *
 108  * Free data structures associated with a thread.
 109  * Must be called from the context of another thread.
 110  */
 111 static void CALLBACK THREAD_FreeTEB( TEB *teb )
 112 {
 113     TRACE("(%p) called\n", teb );
 114     if (teb->cleanup) SERVICE_Delete( teb->cleanup );
 115
 116     /* Free the associated memory */
 117
 118     close( teb->request_fd );
 119     close( teb->reply_fd );
 120     close( teb->wait_fd[0] );
 121     close( teb->wait_fd[1] );
 122     if (teb->stack_sel) FreeSelector16( teb->stack_sel );
 123     FreeSelector16( teb->teb_sel );
 124     if (teb->buffer) munmap( (void *)teb->buffer, teb->buffer_size );
 125     if (teb->debug_info) HeapFree( GetProcessHeap(), 0, teb->debug_info );
 126     VirtualFree( teb->stack_base, 0, MEM_RELEASE );
 127 }
 128
 129
 130 /***********************************************************************
 131  *           THREAD_InitStack
 132  *
 133  * Allocate the stack of a thread.
 134  */
 135 TEB *THREAD_InitStack( TEB *teb, DWORD stack_size )
 136 {
 137     DWORD old_prot, total_size;
 138     DWORD page_size = getpagesize();
 139     void *base;
 140
 141     /* Allocate the stack */
 142
 143     if (stack_size >= 16*1024*1024)
 144         WARN("Thread stack size is %ld MB.\n",stack_size/1024/1024);
 145
 146     /* if size is smaller than default, get stack size from parent */
 147     if (stack_size < 1024 * 1024)
 148     {
 149         if (teb)
 150             stack_size = 1024 * 1024;  /* no parent */
 151         else
 152             stack_size = ((char *)NtCurrentTeb()->stack_top - (char *)NtCurrentTeb()->stack_base
 153                           - SIGNAL_STACK_SIZE - 3 * page_size);
 154     }
 155
 156     /* FIXME: some Wine functions use a lot of stack, so we add 64Kb here */
 157     stack_size += 64 * 1024;
 158
 159     /* Memory layout in allocated block:
 160      *
 161      *   size                 contents
 162      * 1 page              NOACCESS guard page
 163      * SIGNAL_STACK_SIZE   signal stack
 164      * 1 page              NOACCESS guard page
 165      * 1 page              PAGE_GUARD guard page
 166      * stack_size          normal stack
 167      * 64Kb                16-bit stack (optional)
 168      * 1 page              TEB (except for initial thread)
 169      */
 170
 171     stack_size = (stack_size + (page_size - 1)) & ~(page_size - 1);
 172     total_size = stack_size + SIGNAL_STACK_SIZE + 3 * page_size;
 173     total_size += 0x10000; /* 16-bit stack */
 174     if (!teb) total_size += page_size;
 175
 176     if (!(base = VirtualAlloc( NULL, total_size, MEM_COMMIT, PAGE_EXECUTE_READWRITE )))
 177         return NULL;
 178
 179     if (!teb)
 180     {
 181         teb = (TEB *)((char *)base + total_size - page_size);
 182         if (!THREAD_InitTEB( teb ))
 183         {
 184             VirtualFree( base, 0, MEM_RELEASE );
 185             return NULL;
 186         }
 187     }
 188
 189     teb->stack_low    = base;
 190     teb->stack_base   = base;
 191     teb->signal_stack = (char *)base + page_size;
 192     teb->stack_top    = (char *)base + 3 * page_size + SIGNAL_STACK_SIZE + stack_size;
 193
 194     /* Setup guard pages */
 195
 196     VirtualProtect( base, 1, PAGE_NOACCESS, &old_prot );
 197     VirtualProtect( (char *)teb->signal_stack + SIGNAL_STACK_SIZE, 1, PAGE_NOACCESS, &old_prot );
 198     VirtualProtect( (char *)teb->signal_stack + SIGNAL_STACK_SIZE + page_size, 1,
 199                     PAGE_EXECUTE_READWRITE | PAGE_GUARD, &old_prot );
 200
 201     /* Allocate the 16-bit stack selector */
 202
 203     teb->stack_sel = SELECTOR_AllocBlock( teb->stack_top, 0x10000, WINE_LDT_FLAGS_DATA );
 204     if (!teb->stack_sel) goto error;
 205     teb->cur_stack = MAKESEGPTR( teb->stack_sel, 0x10000 - sizeof(STACK16FRAME) );
 206
 207     return teb;
 208
 209 error:
 210     THREAD_FreeTEB( teb );
 211     return NULL;
 212 }
 213
 214
 215 /***********************************************************************
 216  *           thread_errno_location
 217  *
 218  * Get the per-thread errno location.
 219  */
 220 static int *thread_errno_location(void)
 221 {
 222     return &NtCurrentTeb()->thread_errno;
 223 }
 224
 225 /***********************************************************************
 226  *           thread_h_errno_location
 227  *
 228  * Get the per-thread h_errno location.
 229  */
 230 static int *thread_h_errno_location(void)
 231 {
 232     return &NtCurrentTeb()->thread_h_errno;
 233 }
 234
 235 /***********************************************************************
 236  *           THREAD_Init
 237  *
 238  * Setup the initial thread.
 239  *
 240  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 241  */
 242 void THREAD_Init(void)
 243 {
 244     if (!initial_teb.self)  /* do it only once */
 245     {
 246         THREAD_InitTEB( &initial_teb );
 247         assert( initial_teb.teb_sel );
 248         initial_teb.process = &current_process;
 249         SYSDEPS_SetCurThread( &initial_teb );
 250         wine_errno_location = thread_errno_location;
 251         wine_h_errno_location = thread_h_errno_location;
 252     }
 253 }
 254
 255 DECL_GLOBAL_CONSTRUCTOR(thread_init) { THREAD_Init(); }
 256
 257
 258 /***********************************************************************
 259  *           THREAD_Start
 260  *
 261  * Start execution of a newly created thread. Does not return.
 262  */
 263 static void THREAD_Start(void)
 264 {
 265     HANDLE cleanup_object;
 266     LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)NtCurrentTeb()->entry_point;
 267
 268     /* install cleanup handler */
 269     if (DuplicateHandle( GetCurrentProcess(), GetCurrentThread(),
 270                          GetCurrentProcess(), &cleanup_object,
 271                          0, FALSE, DUPLICATE_SAME_ACCESS ))
 272         NtCurrentTeb()->cleanup = SERVICE_AddObject( cleanup_object, (PAPCFUNC)THREAD_FreeTEB,
 273                                                      (ULONG_PTR)NtCurrentTeb() );
 274
 275     if (TRACE_ON(relay))
 276         DPRINTF("%08lx:Starting thread (entryproc=%p)\n", GetCurrentThreadId(), func );
 277
 278     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
 279     PE_InitTls();
 280     MODULE_DllThreadAttach( NULL );
 281     ExitThread( func( NtCurrentTeb()->entry_arg ) );
 282 }
 283
 284
 285 /***********************************************************************
 286  *           CreateThread   (KERNEL32.@)
 287  */
 288 HANDLE WINAPI CreateThread( SECURITY_ATTRIBUTES *sa, DWORD stack,
 289                             LPTHREAD_START_ROUTINE start, LPVOID param,
 290                             DWORD flags, LPDWORD id )
 291 {
 292     HANDLE handle = 0;
 293     TEB *teb;
 294     void *tid = 0;
 295     int request_pipe[2];
 296
 297     if (pipe( request_pipe ) == -1)
 298     {
 299         SetLastError( ERROR_TOO_MANY_OPEN_FILES );
 300         return 0;
 301     }
 302     fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
 303     wine_server_send_fd( request_pipe[0] );
 304
 305     SERVER_START_REQ( new_thread )
 306     {
 307         req->suspend    = ((flags & CREATE_SUSPENDED) != 0);
 308         req->inherit    = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
 309         req->request_fd = request_pipe[0];
 310         if (!SERVER_CALL_ERR())
 311         {
 312             handle = req->handle;
 313             tid = req->tid;
 314         }
 315         close( request_pipe[0] );
 316     }
 317     SERVER_END_REQ;
 318
 319     if (!handle || !(teb = THREAD_InitStack( NULL, stack )))
 320     {
 321         close( request_pipe[1] );
 322         return 0;
 323     }
 324
 325     teb->process     = NtCurrentTeb()->process;
 326     teb->tid         = tid;
 327     teb->request_fd  = request_pipe[1];
 328     teb->entry_point = start;
 329     teb->entry_arg   = param;
 330     teb->startup     = THREAD_Start;
 331     teb->htask16     = GetCurrentTask();
 332
 333     if (id) *id = (DWORD)tid;
 334     if (SYSDEPS_SpawnThread( teb ) == -1)
 335     {
 336         CloseHandle( handle );
 337         THREAD_FreeTEB( teb );
 338         return 0;
 339     }
 340     return handle;
 341 }
 342
 343 /***********************************************************************
 344  *           CreateThread16   (KERNEL.441)
 345  */
 346 static DWORD CALLBACK THREAD_StartThread16( LPVOID threadArgs )
 347 {
 348     FARPROC16 start = ((FARPROC16 *)threadArgs)[0];
 349     DWORD     param = ((DWORD *)threadArgs)[1];
 350     HeapFree( GetProcessHeap(), 0, threadArgs );
 351
 352     ((LPDWORD)CURRENT_STACK16)[-1] = param;
 353     return wine_call_to_16_long( start, sizeof(DWORD) );
 354 }
 355 HANDLE WINAPI CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack,
 356                               FARPROC16 start, SEGPTR param,
 357                               DWORD flags, LPDWORD id )
 358 {
 359     DWORD *threadArgs = HeapAlloc( GetProcessHeap(), 0, 2*sizeof(DWORD) );
 360     if (!threadArgs) return INVALID_HANDLE_VALUE;
 361     threadArgs[0] = (DWORD)start;
 362     threadArgs[1] = (DWORD)param;
 363
 364     return CreateThread( sa, stack, THREAD_StartThread16, threadArgs, flags, id );
 365 }
 366
 367
 368 /***********************************************************************
 369  * ExitThread [KERNEL32.215]  Ends a thread
 370  *
 371  * RETURNS
 372  *    None
 373  */
 374 void WINAPI ExitThread( DWORD code ) /* [in] Exit code for this thread */
 375 {
 376     BOOL last;
 377     SERVER_START_REQ( terminate_thread )
 378     {
 379         /* send the exit code to the server */
 380         req->handle    = GetCurrentThread();
 381         req->exit_code = code;
 382         SERVER_CALL();
 383         last = req->last;
 384     }
 385     SERVER_END_REQ;
 386
 387     if (last)
 388     {
 389         MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 390         exit( code );
 391     }
 392     else
 393     {
 394         MODULE_DllThreadDetach( NULL );
 395         if (!(NtCurrentTeb()->tibflags & TEBF_WIN32)) TASK_ExitTask();
 396         SYSDEPS_ExitThread( code );
 397     }
 398 }
 399
 400
 401 /***********************************************************************
 402  * SetThreadContext [KERNEL32.670]  Sets context of thread.
 403  *
 404  * RETURNS
 405  *    Success: TRUE
 406  *    Failure: FALSE
 407  */
 408 BOOL WINAPI SetThreadContext( HANDLE handle,           /* [in]  Handle to thread with context */
 409                               const CONTEXT *context ) /* [in] Address of context structure */
 410 {
 411     BOOL ret;
 412     SERVER_START_VAR_REQ( set_thread_context, sizeof(*context) )
 413     {
 414         req->handle = handle;
 415         req->flags = context->ContextFlags;
 416         memcpy( server_data_ptr(req), context, sizeof(*context) );
 417         ret = !SERVER_CALL_ERR();
 418     }
 419     SERVER_END_VAR_REQ;
 420     return ret;
 421 }
 422
 423
 424 /***********************************************************************
 425  * GetThreadContext [KERNEL32.@]  Retrieves context of thread.
 426  *
 427  * RETURNS
 428  *    Success: TRUE
 429  *    Failure: FALSE
 430  */
 431 BOOL WINAPI GetThreadContext( HANDLE handle,     /* [in]  Handle to thread with context */
 432                               CONTEXT *context ) /* [out] Address of context structure */
 433 {
 434     BOOL ret;
 435     SERVER_START_VAR_REQ( get_thread_context, sizeof(*context) )
 436     {
 437         req->handle = handle;
 438         req->flags = context->ContextFlags;
 439         memcpy( server_data_ptr(req), context, sizeof(*context) );
 440         if ((ret = !SERVER_CALL_ERR()))
 441             memcpy( context, server_data_ptr(req), sizeof(*context) );
 442     }
 443     SERVER_END_VAR_REQ;
 444     return ret;
 445 }
 446
 447
 448 /**********************************************************************
 449  * GetThreadPriority [KERNEL32.@]  Returns priority for thread.
 450  *
 451  * RETURNS
 452  *    Success: Thread's priority level.
 453  *    Failure: THREAD_PRIORITY_ERROR_RETURN
 454  */
 455 INT WINAPI GetThreadPriority(
 456     HANDLE hthread) /* [in] Handle to thread */
 457 {
 458     INT ret = THREAD_PRIORITY_ERROR_RETURN;
 459     SERVER_START_REQ( get_thread_info )
 460     {
 461         req->handle = hthread;
 462         req->tid_in = 0;
 463         if (!SERVER_CALL_ERR()) ret = req->priority;
 464     }
 465     SERVER_END_REQ;
 466     return ret;
 467 }
 468
 469
 470 /**********************************************************************
 471  * SetThreadPriority [KERNEL32.@]  Sets priority for thread.
 472  *
 473  * RETURNS
 474  *    Success: TRUE
 475  *    Failure: FALSE
 476  */
 477 BOOL WINAPI SetThreadPriority(
 478     HANDLE hthread, /* [in] Handle to thread */
 479     INT priority)   /* [in] Thread priority level */
 480 {
 481     BOOL ret;
 482     SERVER_START_REQ( set_thread_info )
 483     {
 484         req->handle   = hthread;
 485         req->priority = priority;
 486         req->mask     = SET_THREAD_INFO_PRIORITY;
 487         ret = !SERVER_CALL_ERR();
 488     }
 489     SERVER_END_REQ;
 490     return ret;
 491 }
 492
 493
 494 /**********************************************************************
 495  * GetThreadPriorityBoost [KERNEL32.877]  Returns priority boost for thread.
 496  *
 497  * Always reports that priority boost is disabled.
 498  *
 499  * RETURNS
 500  *    Success: TRUE.
 501  *    Failure: FALSE
 502  */
 503 BOOL WINAPI GetThreadPriorityBoost(
 504     HANDLE hthread, /* [in] Handle to thread */
 505     PBOOL pstate)   /* [out] pointer to var that receives the boost state */
 506 {
 507     if (pstate) *pstate = FALSE;
 508     return NO_ERROR;
 509 }
 510
 511
 512 /**********************************************************************
 513  * SetThreadPriorityBoost [KERNEL32.893]  Sets priority boost for thread.
 514  *
 515  * Priority boost is not implemented. Thsi function always returns
 516  * FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
 517  *
 518  * RETURNS
 519  *    Always returns FALSE to indicate a failure
 520  */
 521 BOOL WINAPI SetThreadPriorityBoost(
 522     HANDLE hthread, /* [in] Handle to thread */
 523     BOOL disable)   /* [in] TRUE to disable priority boost */
 524 {
 525     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 526     return FALSE;
 527 }
 528
 529
 530 /**********************************************************************
 531  *           SetThreadAffinityMask   (KERNEL32.669)
 532  */
 533 DWORD WINAPI SetThreadAffinityMask( HANDLE hThread, DWORD dwThreadAffinityMask )
 534 {
 535     DWORD ret;
 536     SERVER_START_REQ( set_thread_info )
 537     {
 538         req->handle   = hThread;
 539         req->affinity = dwThreadAffinityMask;
 540         req->mask     = SET_THREAD_INFO_AFFINITY;
 541         ret = !SERVER_CALL_ERR();
 542         /* FIXME: should return previous value */
 543     }
 544     SERVER_END_REQ;
 545     return ret;
 546 }
 547
 548
 549 /**********************************************************************
 550  * TerminateThread [KERNEL32.685]  Terminates a thread
 551  *
 552  * RETURNS
 553  *    Success: TRUE
 554  *    Failure: FALSE
 555  */
 556 BOOL WINAPI TerminateThread( HANDLE handle,    /* [in] Handle to thread */
 557                              DWORD exit_code)  /* [in] Exit code for thread */
 558 {
 559     NTSTATUS status = NtTerminateThread( handle, exit_code );
 560     if (status) SetLastError( RtlNtStatusToDosError(status) );
 561     return !status;
 562 }
 563
 564
 565 /**********************************************************************
 566  *              GetExitCodeThread (KERNEL32.@)
 567  *              GetExitCodeThread (WIN32S16.13)
 568  *
 569  * Gets termination status of thread.
 570  *
 571  * RETURNS
 572  *    Success: TRUE
 573  *    Failure: FALSE
 574  */
 575 BOOL WINAPI GetExitCodeThread(
 576     HANDLE hthread, /* [in]  Handle to thread */
 577     LPDWORD exitcode) /* [out] Address to receive termination status */
 578 {
 579     BOOL ret;
 580     SERVER_START_REQ( get_thread_info )
 581     {
 582         req->handle = hthread;
 583         req->tid_in = 0;
 584         ret = !SERVER_CALL_ERR();
 585         if (ret && exitcode) *exitcode = req->exit_code;
 586     }
 587     SERVER_END_REQ;
 588     return ret;
 589 }
 590
 591
 592 /**********************************************************************
 593  * ResumeThread [KERNEL32.587]  Resumes a thread.
 594  *
 595  * Decrements a thread's suspend count.  When count is zero, the
 596  * execution of the thread is resumed.
 597  *
 598  * RETURNS
 599  *    Success: Previous suspend count
 600  *    Failure: 0xFFFFFFFF
 601  *    Already running: 0
 602  */
 603 DWORD WINAPI ResumeThread(
 604     HANDLE hthread) /* [in] Identifies thread to restart */
 605 {
 606     DWORD ret = 0xffffffff;
 607     SERVER_START_REQ( resume_thread )
 608     {
 609         req->handle = hthread;
 610         if (!SERVER_CALL_ERR()) ret = req->count;
 611     }
 612     SERVER_END_REQ;
 613     return ret;
 614 }
 615
 616
 617 /**********************************************************************
 618  * SuspendThread [KERNEL32.681]  Suspends a thread.
 619  *
 620  * RETURNS
 621  *    Success: Previous suspend count
 622  *    Failure: 0xFFFFFFFF
 623  */
 624 DWORD WINAPI SuspendThread(
 625     HANDLE hthread) /* [in] Handle to the thread */
 626 {
 627     DWORD ret = 0xffffffff;
 628     SERVER_START_REQ( suspend_thread )
 629     {
 630         req->handle = hthread;
 631         if (!SERVER_CALL_ERR()) ret = req->count;
 632     }
 633     SERVER_END_REQ;
 634     return ret;
 635 }
 636
 637
 638 /***********************************************************************
 639  *              QueueUserAPC  (KERNEL32.566)
 640  */
 641 DWORD WINAPI QueueUserAPC( PAPCFUNC func, HANDLE hthread, ULONG_PTR data )
 642 {
 643     DWORD ret;
 644     SERVER_START_REQ( queue_apc )
 645     {
 646         req->handle = hthread;
 647         req->user   = 1;
 648         req->func   = func;
 649         req->param  = (void *)data;
 650         ret = !SERVER_CALL_ERR();
 651     }
 652     SERVER_END_REQ;
 653     return ret;
 654 }
 655
 656
 657 /**********************************************************************
 658  * GetThreadTimes [KERNEL32.@]  Obtains timing information.
 659  *
 660  * NOTES
 661  *    What are the fields where these values are stored?
 662  *
 663  * RETURNS
 664  *    Success: TRUE
 665  *    Failure: FALSE
 666  */
 667 BOOL WINAPI GetThreadTimes(
 668     HANDLE thread,         /* [in]  Specifies the thread of interest */
 669     LPFILETIME creationtime, /* [out] When the thread was created */
 670     LPFILETIME exittime,     /* [out] When the thread was destroyed */
 671     LPFILETIME kerneltime,   /* [out] Time thread spent in kernel mode */
 672     LPFILETIME usertime)     /* [out] Time thread spent in user mode */
 673 {
 674     FIXME("(0x%08x): stub\n",thread);
 675     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 676     return FALSE;
 677 }
 678
 679
 680 /**********************************************************************
 681  * VWin32_BoostThreadGroup [KERNEL.535]
 682  */
 683 VOID WINAPI VWin32_BoostThreadGroup( DWORD threadId, INT boost )
 684 {
 685     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 686 }
 687
 688 /**********************************************************************
 689  * VWin32_BoostThreadStatic [KERNEL.536]
 690  */
 691 VOID WINAPI VWin32_BoostThreadStatic( DWORD threadId, INT boost )
 692 {
 693     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 694 }
 695
 696
 697 /***********************************************************************
 698  *           GetThreadLocale    (KERNEL32.@)
 699  */
 700 LCID WINAPI GetThreadLocale(void)
 701 {
 702     LCID ret = NtCurrentTeb()->CurrentLocale;
 703     if (!ret) NtCurrentTeb()->CurrentLocale = ret = GetUserDefaultLCID();
 704     return ret;
 705 }
 706
 707
 708 /**********************************************************************
 709  * SetThreadLocale [KERNEL32.671]  Sets the calling threads current locale.
 710  *
 711  * RETURNS
 712  *    Success: TRUE
 713  *    Failure: FALSE
 714  *
 715  * FIXME
 716  *  check if lcid is a valid cp
 717  */
 718 BOOL WINAPI SetThreadLocale(
 719     LCID lcid)     /* [in] Locale identifier */
 720 {
 721     switch (lcid)
 722     {
 723       case LOCALE_SYSTEM_DEFAULT:
 724         lcid = GetSystemDefaultLCID();
 725         break;
 726       case LOCALE_USER_DEFAULT:
 727       case LOCALE_NEUTRAL:
 728         lcid = GetUserDefaultLCID();
 729         break;
 730     }
 731     NtCurrentTeb()->CurrentLocale = lcid;
 732     return TRUE;
 733 }
 734
 735
 736 /***********************************************************************
 737  * GetCurrentThread [KERNEL32.@]  Gets pseudohandle for current thread
 738  *
 739  * RETURNS
 740  *    Pseudohandle for the current thread
 741  */
 742 #undef GetCurrentThread
 743 HANDLE WINAPI GetCurrentThread(void)
 744 {
 745     return 0xfffffffe;
 746 }
 747
 748
 749 /***********************************************************************
 750  * ProcessIdToSessionId   (KERNEL32.@)
 751  * This function is available on Terminal Server 4SP4 and Windows 2000
 752  */
 753 BOOL WINAPI ProcessIdToSessionId( DWORD procid, DWORD *sessionid_ptr )
 754 {
 755         /* According to MSDN, if the calling process is not in a terminal
 756          * services environment, then the sessionid returned is zero.
 757          */
 758         *sessionid_ptr = 0;
 759         return TRUE;
 760 }
 761
 762 /***********************************************************************
 763  * SetThreadExecutionState (KERNEL32.@)
 764  *
 765  * Informs the system that activity is taking place for
 766  * power management purposes.
 767  */
 768 EXECUTION_STATE WINAPI SetThreadExecutionState(EXECUTION_STATE flags)
 769 {
 770     FIXME("(%ld): stub\n", flags);
 771     return 0;
 772 }
 773
 774
 775 #ifdef __i386__
 776
 777 /* void WINAPI SetLastError( DWORD error ); */
 778 __ASM_GLOBAL_FUNC( SetLastError,
 779                    "movl 4(%esp),%eax\n\t"
 780                    ".byte 0x64\n\t"
 781                    "movl %eax,0x60\n\t"
 782                    "ret $4" );
 783
 784 /* DWORD WINAPI GetLastError(void); */
 785 __ASM_GLOBAL_FUNC( GetLastError, ".byte 0x64\n\tmovl 0x60,%eax\n\tret" );
 786
 787 /* DWORD WINAPI GetCurrentProcessId(void) */
 788 __ASM_GLOBAL_FUNC( GetCurrentProcessId, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" );
 789
 790 /* DWORD WINAPI GetCurrentThreadId(void) */
 791 __ASM_GLOBAL_FUNC( GetCurrentThreadId, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" );
 792
 793 #else  /* __i386__ */
 794
 795 /**********************************************************************
 796  *              SetLastError (KERNEL.147)
 797  *              SetLastError (KERNEL32.@)
 798  *
 799  * Sets the last-error code.
 800  */
 801 void WINAPI SetLastError( DWORD error ) /* [in] Per-thread error code */
 802 {
 803     NtCurrentTeb()->last_error = error;
 804 }
 805
 806 /**********************************************************************
 807  *              GetLastError (KERNEL.10)
 808  *              GetLastError (KERNEL32.@)
 809  *              GetLastError (WIN32S16.10)
 810  *
 811  * Returns last-error code.
 812  */
 813 DWORD WINAPI GetLastError(void)
 814 {
 815     return NtCurrentTeb()->last_error;
 816 }
 817
 818 /***********************************************************************
 819  *              GetCurrentProcessId (KERNEL.471)
 820  *              GetCurrentProcessId (KERNEL32.@)
 821  *
 822  * Returns process identifier.
 823  */
 824 DWORD WINAPI GetCurrentProcessId(void)
 825 {
 826     return (DWORD)NtCurrentTeb()->pid;
 827 }
 828
 829 /***********************************************************************
 830  *              GetCurrentThreadId (KERNEL.462)
 831  *              GetCurrentThreadId (KERNEL32.@)
 832  *
 833  * Returns thread identifier.
 834  */
 835 DWORD WINAPI GetCurrentThreadId(void)
 836 {
 837     return (DWORD)NtCurrentTeb()->tid;
 838 }
 839
 840 #endif  /* __i386__ */