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