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
  34 /* TEB of the initial thread */
  35 static TEB initial_teb;
  36
  37 extern struct _PDB current_process;
  38
  39 /***********************************************************************
  40  *           THREAD_IsWin16
  41  */
  42 BOOL THREAD_IsWin16( TEB *teb )
  43 {
  44     return !teb || !(teb->tibflags & TEBF_WIN32);
  45 }
  46
  47 /***********************************************************************
  48  *           THREAD_IdToTEB
  49  *
  50  * Convert a thread id to a TEB, making sure it is valid.
  51  */
  52 TEB *THREAD_IdToTEB( DWORD id )
  53 {
  54     TEB *ret = NULL;
  55
  56     if (!id || id == GetCurrentThreadId()) return NtCurrentTeb();
  57
  58     SERVER_START_REQ( get_thread_info )
  59     {
  60         req->handle = 0;
  61         req->tid_in = (void *)id;
  62         if (!SERVER_CALL()) ret = req->teb;
  63     }
  64     SERVER_END_REQ;
  65
  66     if (!ret)
  67     {
  68         /* Allow task handles to be used; convert to main thread */
  69         if ( IsTask16( id ) )
  70         {
  71             TDB *pTask = (TDB *)GlobalLock16( id );
  72             if (pTask) return pTask->teb;
  73         }
  74         SetLastError( ERROR_INVALID_PARAMETER );
  75     }
  76     return ret;
  77 }
  78
  79
  80 /***********************************************************************
  81  *           THREAD_InitTEB
  82  *
  83  * Initialization of a newly created TEB.
  84  */
  85 static BOOL THREAD_InitTEB( TEB *teb )
  86 {
  87     teb->except    = (void *)~0UL;
  88     teb->self      = teb;
  89     teb->tibflags  = TEBF_WIN32;
  90     teb->tls_ptr   = teb->tls_array;
  91     teb->exit_code = STILL_ACTIVE;
  92     teb->request_fd = -1;
  93     teb->reply_fd   = -1;
  94     teb->wait_fd[0] = -1;
  95     teb->wait_fd[1] = -1;
  96     teb->stack_top  = (void *)~0UL;
  97     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
  98     teb->StaticUnicodeString.Buffer = (PWSTR)teb->StaticUnicodeBuffer;
  99     teb->teb_sel = SELECTOR_AllocBlock( teb, 0x1000, WINE_LDT_FLAGS_DATA|WINE_LDT_FLAGS_32BIT );
 100     return (teb->teb_sel != 0);
 101 }
 102
 103
 104 /***********************************************************************
 105  *           THREAD_FreeTEB
 106  *
 107  * Free data structures associated with a thread.
 108  * Must be called from the context of another thread.
 109  */
 110 static void CALLBACK THREAD_FreeTEB( TEB *teb )
 111 {
 112     TRACE("(%p) called\n", teb );
 113     if (teb->cleanup) SERVICE_Delete( teb->cleanup );
 114
 115     /* Free the associated memory */
 116
 117     close( teb->request_fd );
 118     close( teb->reply_fd );
 119     close( teb->wait_fd[0] );
 120     close( teb->wait_fd[1] );
 121     if (teb->stack_sel) FreeSelector16( teb->stack_sel );
 122     FreeSelector16( teb->teb_sel );
 123     if (teb->buffer) munmap( (void *)teb->buffer, teb->buffer_size );
 124     if (teb->debug_info) HeapFree( GetProcessHeap(), 0, teb->debug_info );
 125     VirtualFree( teb->stack_base, 0, MEM_RELEASE );
 126 }
 127
 128
 129 /***********************************************************************
 130  *           THREAD_InitStack
 131  *
 132  * Allocate the stack of a thread.
 133  */
 134 TEB *THREAD_InitStack( TEB *teb, DWORD stack_size )
 135 {
 136     DWORD old_prot, total_size;
 137     DWORD page_size = getpagesize();
 138     void *base;
 139
 140     /* Allocate the stack */
 141
 142     if (stack_size >= 16*1024*1024)
 143         WARN("Thread stack size is %ld MB.\n",stack_size/1024/1024);
 144
 145     /* if size is smaller than default, get stack size from parent */
 146     if (stack_size < 1024 * 1024)
 147     {
 148         if (teb)
 149             stack_size = 1024 * 1024;  /* no parent */
 150         else
 151             stack_size = ((char *)NtCurrentTeb()->stack_top - (char *)NtCurrentTeb()->stack_base
 152                           - SIGNAL_STACK_SIZE - 3 * page_size);
 153     }
 154
 155     /* FIXME: some Wine functions use a lot of stack, so we add 64Kb here */
 156     stack_size += 64 * 1024;
 157
 158     /* Memory layout in allocated block:
 159      *
 160      *   size                 contents
 161      * 1 page              NOACCESS guard page
 162      * SIGNAL_STACK_SIZE   signal stack
 163      * 1 page              NOACCESS guard page
 164      * 1 page              PAGE_GUARD guard page
 165      * stack_size          normal stack
 166      * 64Kb                16-bit stack (optional)
 167      * 1 page              TEB (except for initial thread)
 168      */
 169
 170     stack_size = (stack_size + (page_size - 1)) & ~(page_size - 1);
 171     total_size = stack_size + SIGNAL_STACK_SIZE + 3 * page_size;
 172     total_size += 0x10000; /* 16-bit stack */
 173     if (!teb) total_size += page_size;
 174
 175     if (!(base = VirtualAlloc( NULL, total_size, MEM_COMMIT, PAGE_EXECUTE_READWRITE )))
 176         return NULL;
 177
 178     if (!teb)
 179     {
 180         teb = (TEB *)((char *)base + total_size - page_size);
 181         if (!THREAD_InitTEB( teb ))
 182         {
 183             VirtualFree( base, 0, MEM_RELEASE );
 184             return NULL;
 185         }
 186     }
 187
 188     teb->stack_low    = base;
 189     teb->stack_base   = base;
 190     teb->signal_stack = (char *)base + page_size;
 191     teb->stack_top    = (char *)base + 3 * page_size + SIGNAL_STACK_SIZE + stack_size;
 192
 193     /* Setup guard pages */
 194
 195     VirtualProtect( base, 1, PAGE_NOACCESS, &old_prot );
 196     VirtualProtect( (char *)teb->signal_stack + SIGNAL_STACK_SIZE, 1, PAGE_NOACCESS, &old_prot );
 197     VirtualProtect( (char *)teb->signal_stack + SIGNAL_STACK_SIZE + page_size, 1,
 198                     PAGE_EXECUTE_READWRITE | PAGE_GUARD, &old_prot );
 199
 200     /* Allocate the 16-bit stack selector */
 201
 202     teb->stack_sel = SELECTOR_AllocBlock( teb->stack_top, 0x10000, WINE_LDT_FLAGS_DATA );
 203     if (!teb->stack_sel) goto error;
 204     teb->cur_stack = MAKESEGPTR( teb->stack_sel, 0x10000 - sizeof(STACK16FRAME) );
 205
 206     return teb;
 207
 208 error:
 209     THREAD_FreeTEB( teb );
 210     return NULL;
 211 }
 212
 213
 214 /***********************************************************************
 215  *           thread_errno_location
 216  *
 217  * Get the per-thread errno location.
 218  */
 219 static int *thread_errno_location(void)
 220 {
 221     return &NtCurrentTeb()->thread_errno;
 222 }
 223
 224 /***********************************************************************
 225  *           thread_h_errno_location
 226  *
 227  * Get the per-thread h_errno location.
 228  */
 229 static int *thread_h_errno_location(void)
 230 {
 231     return &NtCurrentTeb()->thread_h_errno;
 232 }
 233
 234 /***********************************************************************
 235  *           THREAD_Init
 236  *
 237  * Setup the initial thread.
 238  *
 239  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 240  */
 241 void THREAD_Init(void)
 242 {
 243     if (!initial_teb.self)  /* do it only once */
 244     {
 245         THREAD_InitTEB( &initial_teb );
 246         assert( initial_teb.teb_sel );
 247         initial_teb.process = &current_process;
 248         SYSDEPS_SetCurThread( &initial_teb );
 249         wine_errno_location = thread_errno_location;
 250         wine_h_errno_location = thread_h_errno_location;
 251     }
 252 }
 253
 254 DECL_GLOBAL_CONSTRUCTOR(thread_init) { THREAD_Init(); }
 255
 256
 257 /***********************************************************************
 258  *           THREAD_Start
 259  *
 260  * Start execution of a newly created thread. Does not return.
 261  */
 262 static void THREAD_Start(void)
 263 {
 264     HANDLE cleanup_object;
 265     LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)NtCurrentTeb()->entry_point;
 266
 267     /* install cleanup handler */
 268     if (DuplicateHandle( GetCurrentProcess(), GetCurrentThread(),
 269                          GetCurrentProcess(), &cleanup_object,
 270                          0, FALSE, DUPLICATE_SAME_ACCESS ))
 271         NtCurrentTeb()->cleanup = SERVICE_AddObject( cleanup_object, (PAPCFUNC)THREAD_FreeTEB,
 272                                                      (ULONG_PTR)NtCurrentTeb() );
 273
 274     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
 275     PE_InitTls();
 276     MODULE_DllThreadAttach( NULL );
 277     ExitThread( func( NtCurrentTeb()->entry_arg ) );
 278 }
 279
 280
 281 /***********************************************************************
 282  *           CreateThread   (KERNEL32.@)
 283  */
 284 HANDLE WINAPI CreateThread( SECURITY_ATTRIBUTES *sa, DWORD stack,
 285                             LPTHREAD_START_ROUTINE start, LPVOID param,
 286                             DWORD flags, LPDWORD id )
 287 {
 288     HANDLE handle = 0;
 289     TEB *teb;
 290     void *tid = 0;
 291     int request_pipe[2];
 292
 293     if (pipe( request_pipe ) == -1)
 294     {
 295         SetLastError( ERROR_TOO_MANY_OPEN_FILES );
 296         return 0;
 297     }
 298     fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
 299     wine_server_send_fd( request_pipe[0] );
 300
 301     SERVER_START_REQ( new_thread )
 302     {
 303         req->suspend    = ((flags & CREATE_SUSPENDED) != 0);
 304         req->inherit    = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
 305         req->request_fd = request_pipe[0];
 306         if (!SERVER_CALL_ERR())
 307         {
 308             handle = req->handle;
 309             tid = req->tid;
 310         }
 311         close( request_pipe[0] );
 312     }
 313     SERVER_END_REQ;
 314
 315     if (!handle || !(teb = THREAD_InitStack( NULL, stack )))
 316     {
 317         close( request_pipe[1] );
 318         return 0;
 319     }
 320
 321     teb->process     = NtCurrentTeb()->process;
 322     teb->tid         = tid;
 323     teb->request_fd  = request_pipe[1];
 324     teb->entry_point = start;
 325     teb->entry_arg   = param;
 326     teb->startup     = THREAD_Start;
 327     teb->htask16     = GetCurrentTask();
 328
 329     if (id) *id = (DWORD)tid;
 330     if (SYSDEPS_SpawnThread( teb ) == -1)
 331     {
 332         CloseHandle( handle );
 333         THREAD_FreeTEB( teb );
 334         return 0;
 335     }
 336     return handle;
 337 }
 338
 339 /***********************************************************************
 340  *           CreateThread16   (KERNEL.441)
 341  */
 342 static DWORD CALLBACK THREAD_StartThread16( LPVOID threadArgs )
 343 {
 344     FARPROC16 start = ((FARPROC16 *)threadArgs)[0];
 345     DWORD     param = ((DWORD *)threadArgs)[1];
 346     HeapFree( GetProcessHeap(), 0, threadArgs );
 347
 348     ((LPDWORD)CURRENT_STACK16)[-1] = param;
 349     return wine_call_to_16_long( start, sizeof(DWORD) );
 350 }
 351 HANDLE WINAPI CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack,
 352                               FARPROC16 start, SEGPTR param,
 353                               DWORD flags, LPDWORD id )
 354 {
 355     DWORD *threadArgs = HeapAlloc( GetProcessHeap(), 0, 2*sizeof(DWORD) );
 356     if (!threadArgs) return INVALID_HANDLE_VALUE;
 357     threadArgs[0] = (DWORD)start;
 358     threadArgs[1] = (DWORD)param;
 359
 360     return CreateThread( sa, stack, THREAD_StartThread16, threadArgs, flags, id );
 361 }
 362
 363
 364 /***********************************************************************
 365  * ExitThread [KERNEL32.215]  Ends a thread
 366  *
 367  * RETURNS
 368  *    None
 369  */
 370 void WINAPI ExitThread( DWORD code ) /* [in] Exit code for this thread */
 371 {
 372     BOOL last;
 373     SERVER_START_REQ( terminate_thread )
 374     {
 375         /* send the exit code to the server */
 376         req->handle    = GetCurrentThread();
 377         req->exit_code = code;
 378         SERVER_CALL();
 379         last = req->last;
 380     }
 381     SERVER_END_REQ;
 382
 383     if (last)
 384     {
 385         MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 386         exit( code );
 387     }
 388     else
 389     {
 390         MODULE_DllThreadDetach( NULL );
 391         if (!(NtCurrentTeb()->tibflags & TEBF_WIN32)) TASK_ExitTask();
 392         SYSDEPS_ExitThread( code );
 393     }
 394 }
 395
 396
 397 /***********************************************************************
 398  * SetThreadContext [KERNEL32.670]  Sets context of thread.
 399  *
 400  * RETURNS
 401  *    Success: TRUE
 402  *    Failure: FALSE
 403  */
 404 BOOL WINAPI SetThreadContext( HANDLE handle,           /* [in]  Handle to thread with context */
 405                               const CONTEXT *context ) /* [in] Address of context structure */
 406 {
 407     BOOL ret;
 408     SERVER_START_VAR_REQ( set_thread_context, sizeof(*context) )
 409     {
 410         req->handle = handle;
 411         req->flags = context->ContextFlags;
 412         memcpy( server_data_ptr(req), context, sizeof(*context) );
 413         ret = !SERVER_CALL_ERR();
 414     }
 415     SERVER_END_VAR_REQ;
 416     return ret;
 417 }
 418
 419
 420 /***********************************************************************
 421  * GetThreadContext [KERNEL32.@]  Retrieves context of thread.
 422  *
 423  * RETURNS
 424  *    Success: TRUE
 425  *    Failure: FALSE
 426  */
 427 BOOL WINAPI GetThreadContext( HANDLE handle,     /* [in]  Handle to thread with context */
 428                               CONTEXT *context ) /* [out] Address of context structure */
 429 {
 430     BOOL ret;
 431     SERVER_START_VAR_REQ( get_thread_context, sizeof(*context) )
 432     {
 433         req->handle = handle;
 434         req->flags = context->ContextFlags;
 435         memcpy( server_data_ptr(req), context, sizeof(*context) );
 436         if ((ret = !SERVER_CALL_ERR()))
 437             memcpy( context, server_data_ptr(req), sizeof(*context) );
 438     }
 439     SERVER_END_VAR_REQ;
 440     return ret;
 441 }
 442
 443
 444 /**********************************************************************
 445  * GetThreadPriority [KERNEL32.@]  Returns priority for thread.
 446  *
 447  * RETURNS
 448  *    Success: Thread's priority level.
 449  *    Failure: THREAD_PRIORITY_ERROR_RETURN
 450  */
 451 INT WINAPI GetThreadPriority(
 452     HANDLE hthread) /* [in] Handle to thread */
 453 {
 454     INT ret = THREAD_PRIORITY_ERROR_RETURN;
 455     SERVER_START_REQ( get_thread_info )
 456     {
 457         req->handle = hthread;
 458         req->tid_in = 0;
 459         if (!SERVER_CALL_ERR()) ret = req->priority;
 460     }
 461     SERVER_END_REQ;
 462     return ret;
 463 }
 464
 465
 466 /**********************************************************************
 467  * SetThreadPriority [KERNEL32.@]  Sets priority for thread.
 468  *
 469  * RETURNS
 470  *    Success: TRUE
 471  *    Failure: FALSE
 472  */
 473 BOOL WINAPI SetThreadPriority(
 474     HANDLE hthread, /* [in] Handle to thread */
 475     INT priority)   /* [in] Thread priority level */
 476 {
 477     BOOL ret;
 478     SERVER_START_REQ( set_thread_info )
 479     {
 480         req->handle   = hthread;
 481         req->priority = priority;
 482         req->mask     = SET_THREAD_INFO_PRIORITY;
 483         ret = !SERVER_CALL_ERR();
 484     }
 485     SERVER_END_REQ;
 486     return ret;
 487 }
 488
 489
 490 /**********************************************************************
 491  * GetThreadPriorityBoost [KERNEL32.877]  Returns priority boost for thread.
 492  *
 493  * Always reports that priority boost is disabled.
 494  *
 495  * RETURNS
 496  *    Success: TRUE.
 497  *    Failure: FALSE
 498  */
 499 BOOL WINAPI GetThreadPriorityBoost(
 500     HANDLE hthread, /* [in] Handle to thread */
 501     PBOOL pstate)   /* [out] pointer to var that receives the boost state */
 502 {
 503     if (pstate) *pstate = FALSE;
 504     return NO_ERROR;
 505 }
 506
 507
 508 /**********************************************************************
 509  * SetThreadPriorityBoost [KERNEL32.893]  Sets priority boost for thread.
 510  *
 511  * Priority boost is not implemented. Thsi function always returns
 512  * FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
 513  *
 514  * RETURNS
 515  *    Always returns FALSE to indicate a failure
 516  */
 517 BOOL WINAPI SetThreadPriorityBoost(
 518     HANDLE hthread, /* [in] Handle to thread */
 519     BOOL disable)   /* [in] TRUE to disable priority boost */
 520 {
 521     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 522     return FALSE;
 523 }
 524
 525
 526 /**********************************************************************
 527  *           SetThreadAffinityMask   (KERNEL32.669)
 528  */
 529 DWORD WINAPI SetThreadAffinityMask( HANDLE hThread, DWORD dwThreadAffinityMask )
 530 {
 531     DWORD ret;
 532     SERVER_START_REQ( set_thread_info )
 533     {
 534         req->handle   = hThread;
 535         req->affinity = dwThreadAffinityMask;
 536         req->mask     = SET_THREAD_INFO_AFFINITY;
 537         ret = !SERVER_CALL_ERR();
 538         /* FIXME: should return previous value */
 539     }
 540     SERVER_END_REQ;
 541     return ret;
 542 }
 543
 544
 545 /**********************************************************************
 546  * TerminateThread [KERNEL32.685]  Terminates a thread
 547  *
 548  * RETURNS
 549  *    Success: TRUE
 550  *    Failure: FALSE
 551  */
 552 BOOL WINAPI TerminateThread( HANDLE handle,    /* [in] Handle to thread */
 553                              DWORD exit_code)  /* [in] Exit code for thread */
 554 {
 555     NTSTATUS status = NtTerminateThread( handle, exit_code );
 556     if (status) SetLastError( RtlNtStatusToDosError(status) );
 557     return !status;
 558 }
 559
 560
 561 /**********************************************************************
 562  *              GetExitCodeThread (KERNEL32.@)
 563  *              GetExitCodeThread (WIN32S16.13)
 564  *
 565  * Gets termination status of thread.
 566  *
 567  * RETURNS
 568  *    Success: TRUE
 569  *    Failure: FALSE
 570  */
 571 BOOL WINAPI GetExitCodeThread(
 572     HANDLE hthread, /* [in]  Handle to thread */
 573     LPDWORD exitcode) /* [out] Address to receive termination status */
 574 {
 575     BOOL ret;
 576     SERVER_START_REQ( get_thread_info )
 577     {
 578         req->handle = hthread;
 579         req->tid_in = 0;
 580         ret = !SERVER_CALL_ERR();
 581         if (ret && exitcode) *exitcode = req->exit_code;
 582     }
 583     SERVER_END_REQ;
 584     return ret;
 585 }
 586
 587
 588 /**********************************************************************
 589  * ResumeThread [KERNEL32.587]  Resumes a thread.
 590  *
 591  * Decrements a thread's suspend count.  When count is zero, the
 592  * execution of the thread is resumed.
 593  *
 594  * RETURNS
 595  *    Success: Previous suspend count
 596  *    Failure: 0xFFFFFFFF
 597  *    Already running: 0
 598  */
 599 DWORD WINAPI ResumeThread(
 600     HANDLE hthread) /* [in] Identifies thread to restart */
 601 {
 602     DWORD ret = 0xffffffff;
 603     SERVER_START_REQ( resume_thread )
 604     {
 605         req->handle = hthread;
 606         if (!SERVER_CALL_ERR()) ret = req->count;
 607     }
 608     SERVER_END_REQ;
 609     return ret;
 610 }
 611
 612
 613 /**********************************************************************
 614  * SuspendThread [KERNEL32.681]  Suspends a thread.
 615  *
 616  * RETURNS
 617  *    Success: Previous suspend count
 618  *    Failure: 0xFFFFFFFF
 619  */
 620 DWORD WINAPI SuspendThread(
 621     HANDLE hthread) /* [in] Handle to the thread */
 622 {
 623     DWORD ret = 0xffffffff;
 624     SERVER_START_REQ( suspend_thread )
 625     {
 626         req->handle = hthread;
 627         if (!SERVER_CALL_ERR()) ret = req->count;
 628     }
 629     SERVER_END_REQ;
 630     return ret;
 631 }
 632
 633
 634 /***********************************************************************
 635  *              QueueUserAPC  (KERNEL32.566)
 636  */
 637 DWORD WINAPI QueueUserAPC( PAPCFUNC func, HANDLE hthread, ULONG_PTR data )
 638 {
 639     DWORD ret;
 640     SERVER_START_REQ( queue_apc )
 641     {
 642         req->handle = hthread;
 643         req->user   = 1;
 644         req->func   = func;
 645         req->param  = (void *)data;
 646         ret = !SERVER_CALL_ERR();
 647     }
 648     SERVER_END_REQ;
 649     return ret;
 650 }
 651
 652
 653 /**********************************************************************
 654  * GetThreadTimes [KERNEL32.@]  Obtains timing information.
 655  *
 656  * NOTES
 657  *    What are the fields where these values are stored?
 658  *
 659  * RETURNS
 660  *    Success: TRUE
 661  *    Failure: FALSE
 662  */
 663 BOOL WINAPI GetThreadTimes(
 664     HANDLE thread,         /* [in]  Specifies the thread of interest */
 665     LPFILETIME creationtime, /* [out] When the thread was created */
 666     LPFILETIME exittime,     /* [out] When the thread was destroyed */
 667     LPFILETIME kerneltime,   /* [out] Time thread spent in kernel mode */
 668     LPFILETIME usertime)     /* [out] Time thread spent in user mode */
 669 {
 670     FIXME("(0x%08x): stub\n",thread);
 671     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 672     return FALSE;
 673 }
 674
 675
 676 /**********************************************************************
 677  * VWin32_BoostThreadGroup [KERNEL.535]
 678  */
 679 VOID WINAPI VWin32_BoostThreadGroup( DWORD threadId, INT boost )
 680 {
 681     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 682 }
 683
 684 /**********************************************************************
 685  * VWin32_BoostThreadStatic [KERNEL.536]
 686  */
 687 VOID WINAPI VWin32_BoostThreadStatic( DWORD threadId, INT boost )
 688 {
 689     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 690 }
 691
 692
 693 /***********************************************************************
 694  *           GetThreadLocale    (KERNEL32.@)
 695  */
 696 LCID WINAPI GetThreadLocale(void)
 697 {
 698     LCID ret = NtCurrentTeb()->CurrentLocale;
 699     if (!ret) NtCurrentTeb()->CurrentLocale = ret = GetUserDefaultLCID();
 700     return ret;
 701 }
 702
 703
 704 /**********************************************************************
 705  * SetThreadLocale [KERNEL32.671]  Sets the calling threads current locale.
 706  *
 707  * RETURNS
 708  *    Success: TRUE
 709  *    Failure: FALSE
 710  *
 711  * FIXME
 712  *  check if lcid is a valid cp
 713  */
 714 BOOL WINAPI SetThreadLocale(
 715     LCID lcid)     /* [in] Locale identifier */
 716 {
 717     switch (lcid)
 718     {
 719       case LOCALE_SYSTEM_DEFAULT:
 720         lcid = GetSystemDefaultLCID();
 721         break;
 722       case LOCALE_USER_DEFAULT:
 723       case LOCALE_NEUTRAL:
 724         lcid = GetUserDefaultLCID();
 725         break;
 726     }
 727     NtCurrentTeb()->CurrentLocale = lcid;
 728     return TRUE;
 729 }
 730
 731
 732 /***********************************************************************
 733  * GetCurrentThread [KERNEL32.@]  Gets pseudohandle for current thread
 734  *
 735  * RETURNS
 736  *    Pseudohandle for the current thread
 737  */
 738 #undef GetCurrentThread
 739 HANDLE WINAPI GetCurrentThread(void)
 740 {
 741     return 0xfffffffe;
 742 }
 743
 744
 745 /***********************************************************************
 746  * ProcessIdToSessionId   (KERNEL32.@)
 747  * This function is available on Terminal Server 4SP4 and Windows 2000
 748  */
 749 BOOL WINAPI ProcessIdToSessionId( DWORD procid, DWORD *sessionid_ptr )
 750 {
 751         /* According to MSDN, if the calling process is not in a terminal
 752          * services environment, then the sessionid returned is zero.
 753          */
 754         *sessionid_ptr = 0;
 755         return TRUE;
 756 }
 757
 758
 759 #ifdef __i386__
 760
 761 /* void WINAPI SetLastError( DWORD error ); */
 762 __ASM_GLOBAL_FUNC( SetLastError,
 763                    "movl 4(%esp),%eax\n\t"
 764                    ".byte 0x64\n\t"
 765                    "movl %eax,0x60\n\t"
 766                    "ret $4" );
 767
 768 /* DWORD WINAPI GetLastError(void); */
 769 __ASM_GLOBAL_FUNC( GetLastError, ".byte 0x64\n\tmovl 0x60,%eax\n\tret" );
 770
 771 /* DWORD WINAPI GetCurrentProcessId(void) */
 772 __ASM_GLOBAL_FUNC( GetCurrentProcessId, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" );
 773
 774 /* DWORD WINAPI GetCurrentThreadId(void) */
 775 __ASM_GLOBAL_FUNC( GetCurrentThreadId, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" );
 776
 777 #else  /* __i386__ */
 778
 779 /**********************************************************************
 780  *              SetLastError (KERNEL.147)
 781  *              SetLastError (KERNEL32.@)
 782  *
 783  * Sets the last-error code.
 784  */
 785 void WINAPI SetLastError( DWORD error ) /* [in] Per-thread error code */
 786 {
 787     NtCurrentTeb()->last_error = error;
 788 }
 789
 790 /**********************************************************************
 791  *              GetLastError (KERNEL.10)
 792  *              GetLastError (KERNEL32.@)
 793  *              GetLastError (WIN32S16.10)
 794  *
 795  * Returns last-error code.
 796  */
 797 DWORD WINAPI GetLastError(void)
 798 {
 799     return NtCurrentTeb()->last_error;
 800 }
 801
 802 /***********************************************************************
 803  *              GetCurrentProcessId (KERNEL.471)
 804  *              GetCurrentProcessId (KERNEL32.@)
 805  *
 806  * Returns process identifier.
 807  */
 808 DWORD WINAPI GetCurrentProcessId(void)
 809 {
 810     return (DWORD)NtCurrentTeb()->pid;
 811 }
 812
 813 /***********************************************************************
 814  *              GetCurrentThreadId (KERNEL.462)
 815  *              GetCurrentThreadId (KERNEL32.@)
 816  *
 817  * Returns thread identifier.
 818  */
 819 DWORD WINAPI GetCurrentThreadId(void)
 820 {
 821     return (DWORD)NtCurrentTeb()->tid;
 822 }
 823
 824 #endif  /* __i386__ */