scheduler/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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <assert.h>
  25 #include <fcntl.h>
  26 #include <sys/types.h>
  27 #ifdef HAVE_SYS_MMAN_H
  28 #include <sys/mman.h>
  29 #endif
  30 #ifdef HAVE_UNISTD_H
  31 # include <unistd.h>
  32 #endif
  33 #include "wine/winbase16.h"
  34 #include "thread.h"
  35 #include "task.h"
  36 #include "module.h"
  37 #include "winerror.h"
  38 #include "selectors.h"
  39 #include "winnt.h"
  40 #include "wine/server.h"
  41 #include "stackframe.h"
  42 #include "wine/debug.h"
  43 #include "winnls.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  46 WINE_DECLARE_DEBUG_CHANNEL(relay);
  47
  48 /* TEB of the initial thread */
  49 static TEB initial_teb;
  50
  51 extern struct _PDB current_process;
  52
  53 /***********************************************************************
  54  *           THREAD_IdToTEB
  55  *
  56  * Convert a thread id to a TEB, making sure it is valid.
  57  */
  58 TEB *THREAD_IdToTEB( DWORD id )
  59 {
  60     TEB *ret = NULL;
  61
  62     if (!id || id == GetCurrentThreadId()) return NtCurrentTeb();
  63
  64     SERVER_START_REQ( get_thread_info )
  65     {
  66         req->handle = 0;
  67         req->tid_in = id;
  68         if (!wine_server_call( req )) ret = reply->teb;
  69     }
  70     SERVER_END_REQ;
  71
  72     if (!ret)
  73     {
  74         /* Allow task handles to be used; convert to main thread */
  75         if ( IsTask16( id ) )
  76         {
  77             TDB *pTask = TASK_GetPtr( id );
  78             if (pTask) return pTask->teb;
  79         }
  80         SetLastError( ERROR_INVALID_PARAMETER );
  81     }
  82     return ret;
  83 }
  84
  85
  86 /***********************************************************************
  87  *           THREAD_InitTEB
  88  *
  89  * Initialization of a newly created TEB.
  90  */
  91 static BOOL THREAD_InitTEB( TEB *teb )
  92 {
  93     teb->except    = (void *)~0UL;
  94     teb->self      = teb;
  95     teb->tibflags  = TEBF_WIN32;
  96     teb->tls_ptr   = teb->tls_array;
  97     teb->exit_code = STILL_ACTIVE;
  98     teb->request_fd = -1;
  99     teb->reply_fd   = -1;
 100     teb->wait_fd[0] = -1;
 101     teb->wait_fd[1] = -1;
 102     teb->stack_top  = (void *)~0UL;
 103     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
 104     teb->StaticUnicodeString.Buffer = (PWSTR)teb->StaticUnicodeBuffer;
 105     teb->teb_sel = SELECTOR_AllocBlock( teb, 0x1000, WINE_LDT_FLAGS_DATA|WINE_LDT_FLAGS_32BIT );
 106     return (teb->teb_sel != 0);
 107 }
 108
 109
 110 /***********************************************************************
 111  *           THREAD_FreeTEB
 112  *
 113  * Free data structures associated with a thread.
 114  * Must be called from the context of another thread.
 115  */
 116 static void THREAD_FreeTEB( TEB *teb )
 117 {
 118     TRACE("(%p) called\n", teb );
 119     /* Free the associated memory */
 120     FreeSelector16( teb->stack_sel );
 121     FreeSelector16( teb->teb_sel );
 122     VirtualFree( teb->stack_base, 0, MEM_RELEASE );
 123 }
 124
 125
 126 /***********************************************************************
 127  *           THREAD_InitStack
 128  *
 129  * Allocate the stack of a thread.
 130  */
 131 TEB *THREAD_InitStack( TEB *teb, DWORD stack_size )
 132 {
 133     DWORD old_prot, total_size;
 134     DWORD page_size = getpagesize();
 135     void *base;
 136
 137     /* Allocate the stack */
 138
 139     if (stack_size >= 16*1024*1024)
 140         WARN("Thread stack size is %ld MB.\n",stack_size/1024/1024);
 141
 142     /* if size is smaller than default, get stack size from parent */
 143     if (stack_size < 1024 * 1024)
 144     {
 145         if (teb)
 146             stack_size = 1024 * 1024;  /* no parent */
 147         else
 148             stack_size = ((char *)NtCurrentTeb()->stack_top - (char *)NtCurrentTeb()->stack_base
 149                           - SIGNAL_STACK_SIZE - 3 * page_size);
 150     }
 151
 152     /* FIXME: some Wine functions use a lot of stack, so we add 64Kb here */
 153     stack_size += 64 * 1024;
 154
 155     /* Memory layout in allocated block:
 156      *
 157      *   size                 contents
 158      * 1 page              NOACCESS guard page
 159      * SIGNAL_STACK_SIZE   signal stack
 160      * 1 page              NOACCESS guard page
 161      * 1 page              PAGE_GUARD guard page
 162      * stack_size          normal stack
 163      * 64Kb                16-bit stack (optional)
 164      * 1 page              TEB (except for initial thread)
 165      * 1 page              debug info (except for initial thread)
 166      */
 167
 168     stack_size = (stack_size + (page_size - 1)) & ~(page_size - 1);
 169     total_size = stack_size + SIGNAL_STACK_SIZE + 3 * page_size;
 170     total_size += 0x10000; /* 16-bit stack */
 171     if (!teb) total_size += 2 * page_size;
 172
 173     if (!(base = VirtualAlloc( NULL, total_size, MEM_COMMIT, PAGE_EXECUTE_READWRITE )))
 174         return NULL;
 175
 176     if (!teb)
 177     {
 178         teb = (TEB *)((char *)base + total_size - 2 * page_size);
 179         if (!THREAD_InitTEB( teb )) goto error;
 180         teb->debug_info = (char *)teb + page_size;
 181     }
 182
 183     teb->stack_low    = base;
 184     teb->stack_base   = base;
 185     teb->signal_stack = (char *)base + page_size;
 186     teb->stack_top    = (char *)base + 3 * page_size + SIGNAL_STACK_SIZE + stack_size;
 187
 188     /* Setup guard pages */
 189
 190     VirtualProtect( base, 1, PAGE_NOACCESS, &old_prot );
 191     VirtualProtect( (char *)teb->signal_stack + SIGNAL_STACK_SIZE, 1, PAGE_NOACCESS, &old_prot );
 192     VirtualProtect( (char *)teb->signal_stack + SIGNAL_STACK_SIZE + page_size, 1,
 193                     PAGE_EXECUTE_READWRITE | PAGE_GUARD, &old_prot );
 194
 195     /* Allocate the 16-bit stack selector */
 196
 197     teb->stack_sel = SELECTOR_AllocBlock( teb->stack_top, 0x10000, WINE_LDT_FLAGS_DATA );
 198     if (!teb->stack_sel) goto error;
 199     teb->cur_stack = MAKESEGPTR( teb->stack_sel, 0x10000 - sizeof(STACK16FRAME) );
 200
 201     return teb;
 202
 203 error:
 204     FreeSelector16( teb->teb_sel );
 205     VirtualFree( base, 0, MEM_RELEASE );
 206     return NULL;
 207 }
 208
 209
 210 /***********************************************************************
 211  *           thread_errno_location
 212  *
 213  * Get the per-thread errno location.
 214  */
 215 static int *thread_errno_location(void)
 216 {
 217     return &NtCurrentTeb()->thread_errno;
 218 }
 219
 220 /***********************************************************************
 221  *           thread_h_errno_location
 222  *
 223  * Get the per-thread h_errno location.
 224  */
 225 static int *thread_h_errno_location(void)
 226 {
 227     return &NtCurrentTeb()->thread_h_errno;
 228 }
 229
 230 /***********************************************************************
 231  *           THREAD_Init
 232  *
 233  * Setup the initial thread.
 234  *
 235  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 236  */
 237 void THREAD_Init(void)
 238 {
 239     if (!initial_teb.self)  /* do it only once */
 240     {
 241         THREAD_InitTEB( &initial_teb );
 242         assert( initial_teb.teb_sel );
 243         initial_teb.process = &current_process;
 244         SYSDEPS_SetCurThread( &initial_teb );
 245         wine_errno_location = thread_errno_location;
 246         wine_h_errno_location = thread_h_errno_location;
 247     }
 248 }
 249
 250 DECL_GLOBAL_CONSTRUCTOR(thread_init) { THREAD_Init(); }
 251
 252
 253 /***********************************************************************
 254  *           THREAD_Start
 255  *
 256  * Start execution of a newly created thread. Does not return.
 257  */
 258 static void THREAD_Start(void)
 259 {
 260     LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)NtCurrentTeb()->entry_point;
 261
 262     if (TRACE_ON(relay))
 263         DPRINTF("%08lx:Starting thread (entryproc=%p)\n", GetCurrentThreadId(), func );
 264
 265     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
 266     MODULE_DllThreadAttach( NULL );
 267     ExitThread( func( NtCurrentTeb()->entry_arg ) );
 268 }
 269
 270
 271 /***********************************************************************
 272  *           CreateThread   (KERNEL32.@)
 273  */
 274 HANDLE WINAPI CreateThread( SECURITY_ATTRIBUTES *sa, SIZE_T stack,
 275                             LPTHREAD_START_ROUTINE start, LPVOID param,
 276                             DWORD flags, LPDWORD id )
 277 {
 278     HANDLE handle = 0;
 279     TEB *teb;
 280     DWORD tid = 0;
 281     int request_pipe[2];
 282
 283     if (pipe( request_pipe ) == -1)
 284     {
 285         SetLastError( ERROR_TOO_MANY_OPEN_FILES );
 286         return 0;
 287     }
 288     fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
 289     wine_server_send_fd( request_pipe[0] );
 290
 291     SERVER_START_REQ( new_thread )
 292     {
 293         req->suspend    = ((flags & CREATE_SUSPENDED) != 0);
 294         req->inherit    = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
 295         req->request_fd = request_pipe[0];
 296         if (!wine_server_call_err( req ))
 297         {
 298             handle = reply->handle;
 299             tid = reply->tid;
 300         }
 301         close( request_pipe[0] );
 302     }
 303     SERVER_END_REQ;
 304
 305     if (!handle || !(teb = THREAD_InitStack( NULL, stack )))
 306     {
 307         close( request_pipe[1] );
 308         return 0;
 309     }
 310
 311     teb->process     = NtCurrentTeb()->process;
 312     teb->tid         = tid;
 313     teb->request_fd  = request_pipe[1];
 314     teb->entry_point = start;
 315     teb->entry_arg   = param;
 316     teb->startup     = THREAD_Start;
 317     teb->htask16     = GetCurrentTask();
 318
 319     if (id) *id = tid;
 320     if (SYSDEPS_SpawnThread( teb ) == -1)
 321     {
 322         CloseHandle( handle );
 323         close( request_pipe[1] );
 324         THREAD_FreeTEB( teb );
 325         return 0;
 326     }
 327     return handle;
 328 }
 329
 330 /***********************************************************************
 331  *           CreateThread16   (KERNEL.441)
 332  */
 333 static DWORD CALLBACK THREAD_StartThread16( LPVOID threadArgs )
 334 {
 335     FARPROC16 start = ((FARPROC16 *)threadArgs)[0];
 336     DWORD     param = ((DWORD *)threadArgs)[1];
 337     HeapFree( GetProcessHeap(), 0, threadArgs );
 338
 339     ((LPDWORD)CURRENT_STACK16)[-1] = param;
 340     return wine_call_to_16( start, sizeof(DWORD) );
 341 }
 342 HANDLE WINAPI CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack,
 343                               FARPROC16 start, SEGPTR param,
 344                               DWORD flags, LPDWORD id )
 345 {
 346     DWORD *threadArgs = HeapAlloc( GetProcessHeap(), 0, 2*sizeof(DWORD) );
 347     if (!threadArgs) return INVALID_HANDLE_VALUE;
 348     threadArgs[0] = (DWORD)start;
 349     threadArgs[1] = (DWORD)param;
 350
 351     return CreateThread( sa, stack, THREAD_StartThread16, threadArgs, flags, id );
 352 }
 353
 354
 355 /***********************************************************************
 356  * ExitThread [KERNEL32.@]  Ends a thread
 357  *
 358  * RETURNS
 359  *    None
 360  */
 361 void WINAPI ExitThread( DWORD code ) /* [in] Exit code for this thread */
 362 {
 363     BOOL last;
 364     SERVER_START_REQ( terminate_thread )
 365     {
 366         /* send the exit code to the server */
 367         req->handle    = GetCurrentThread();
 368         req->exit_code = code;
 369         wine_server_call( req );
 370         last = reply->last;
 371     }
 372     SERVER_END_REQ;
 373
 374     if (last)
 375     {
 376         MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 377         exit( code );
 378     }
 379     else
 380     {
 381         MODULE_DllThreadDetach( NULL );
 382         if (!(NtCurrentTeb()->tibflags & TEBF_WIN32)) TASK_ExitTask();
 383         SYSDEPS_ExitThread( code );
 384     }
 385 }
 386
 387 /***********************************************************************
 388  * OpenThread Retrieves a handle to a thread from its thread id
 389  *
 390  * RETURNS
 391  *    None
 392  */
 393 HANDLE WINAPI OpenThread( DWORD dwDesiredAccess, BOOL bInheritHandle, DWORD dwThreadId )
 394 {
 395     HANDLE ret = 0;
 396     SERVER_START_REQ( open_thread )
 397     {
 398         req->tid     = dwThreadId;
 399         req->access  = dwDesiredAccess;
 400         req->inherit = bInheritHandle;
 401         if (!wine_server_call_err( req )) ret = reply->handle;
 402     }
 403     SERVER_END_REQ;
 404     return ret;
 405 }
 406
 407 /***********************************************************************
 408  * SetThreadContext [KERNEL32.@]  Sets context of thread.
 409  *
 410  * RETURNS
 411  *    Success: TRUE
 412  *    Failure: FALSE
 413  */
 414 BOOL WINAPI SetThreadContext( HANDLE handle,           /* [in]  Handle to thread with context */
 415                               const CONTEXT *context ) /* [in] Address of context structure */
 416 {
 417     BOOL ret;
 418     SERVER_START_REQ( set_thread_context )
 419     {
 420         req->handle = handle;
 421         req->flags = context->ContextFlags;
 422         wine_server_add_data( req, context, sizeof(*context) );
 423         ret = !wine_server_call_err( req );
 424     }
 425     SERVER_END_REQ;
 426     return ret;
 427 }
 428
 429
 430 /***********************************************************************
 431  * GetThreadContext [KERNEL32.@]  Retrieves context of thread.
 432  *
 433  * RETURNS
 434  *    Success: TRUE
 435  *    Failure: FALSE
 436  */
 437 BOOL WINAPI GetThreadContext( HANDLE handle,     /* [in]  Handle to thread with context */
 438                               CONTEXT *context ) /* [out] Address of context structure */
 439 {
 440     BOOL ret;
 441     SERVER_START_REQ( get_thread_context )
 442     {
 443         req->handle = handle;
 444         req->flags = context->ContextFlags;
 445         wine_server_add_data( req, context, sizeof(*context) );
 446         wine_server_set_reply( req, context, sizeof(*context) );
 447         ret = !wine_server_call_err( req );
 448     }
 449     SERVER_END_REQ;
 450     return ret;
 451 }
 452
 453
 454 /**********************************************************************
 455  * GetThreadPriority [KERNEL32.@]  Returns priority for thread.
 456  *
 457  * RETURNS
 458  *    Success: Thread's priority level.
 459  *    Failure: THREAD_PRIORITY_ERROR_RETURN
 460  */
 461 INT WINAPI GetThreadPriority(
 462     HANDLE hthread) /* [in] Handle to thread */
 463 {
 464     INT ret = THREAD_PRIORITY_ERROR_RETURN;
 465     SERVER_START_REQ( get_thread_info )
 466     {
 467         req->handle = hthread;
 468         req->tid_in = 0;
 469         if (!wine_server_call_err( req )) ret = reply->priority;
 470     }
 471     SERVER_END_REQ;
 472     return ret;
 473 }
 474
 475
 476 /**********************************************************************
 477  * SetThreadPriority [KERNEL32.@]  Sets priority for thread.
 478  *
 479  * RETURNS
 480  *    Success: TRUE
 481  *    Failure: FALSE
 482  */
 483 BOOL WINAPI SetThreadPriority(
 484     HANDLE hthread, /* [in] Handle to thread */
 485     INT priority)   /* [in] Thread priority level */
 486 {
 487     BOOL ret;
 488     SERVER_START_REQ( set_thread_info )
 489     {
 490         req->handle   = hthread;
 491         req->priority = priority;
 492         req->mask     = SET_THREAD_INFO_PRIORITY;
 493         ret = !wine_server_call_err( req );
 494     }
 495     SERVER_END_REQ;
 496     return ret;
 497 }
 498
 499
 500 /**********************************************************************
 501  * GetThreadPriorityBoost [KERNEL32.@]  Returns priority boost for thread.
 502  *
 503  * Always reports that priority boost is disabled.
 504  *
 505  * RETURNS
 506  *    Success: TRUE.
 507  *    Failure: FALSE
 508  */
 509 BOOL WINAPI GetThreadPriorityBoost(
 510     HANDLE hthread, /* [in] Handle to thread */
 511     PBOOL pstate)   /* [out] pointer to var that receives the boost state */
 512 {
 513     if (pstate) *pstate = FALSE;
 514     return NO_ERROR;
 515 }
 516
 517
 518 /**********************************************************************
 519  * SetThreadPriorityBoost [KERNEL32.@]  Sets priority boost for thread.
 520  *
 521  * Priority boost is not implemented. Thsi function always returns
 522  * FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
 523  *
 524  * RETURNS
 525  *    Always returns FALSE to indicate a failure
 526  */
 527 BOOL WINAPI SetThreadPriorityBoost(
 528     HANDLE hthread, /* [in] Handle to thread */
 529     BOOL disable)   /* [in] TRUE to disable priority boost */
 530 {
 531     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 532     return FALSE;
 533 }
 534
 535
 536 /**********************************************************************
 537  *           SetThreadAffinityMask   (KERNEL32.@)
 538  */
 539 DWORD WINAPI SetThreadAffinityMask( HANDLE hThread, DWORD dwThreadAffinityMask )
 540 {
 541     DWORD ret;
 542     SERVER_START_REQ( set_thread_info )
 543     {
 544         req->handle   = hThread;
 545         req->affinity = dwThreadAffinityMask;
 546         req->mask     = SET_THREAD_INFO_AFFINITY;
 547         ret = !wine_server_call_err( req );
 548         /* FIXME: should return previous value */
 549     }
 550     SERVER_END_REQ;
 551     return ret;
 552 }
 553
 554 /**********************************************************************
 555  * SetThreadIdealProcessor [KERNEL32.@]  Obtains timing information.
 556  *
 557  * RETURNS
 558  *    Success: Value of last call to SetThreadIdealProcessor
 559  *    Failure: -1
 560  */
 561 DWORD WINAPI SetThreadIdealProcessor(
 562     HANDLE hThread,          /* [in] Specifies the thread of interest */
 563     DWORD dwIdealProcessor)  /* [in] Specifies the new preferred processor */
 564 {
 565     FIXME("(0x%08x): stub\n",hThread);
 566     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 567     return -1L;
 568 }
 569
 570 /**********************************************************************
 571  * TerminateThread [KERNEL32.@]  Terminates a thread
 572  *
 573  * RETURNS
 574  *    Success: TRUE
 575  *    Failure: FALSE
 576  */
 577 BOOL WINAPI TerminateThread( HANDLE handle,    /* [in] Handle to thread */
 578                              DWORD exit_code)  /* [in] Exit code for thread */
 579 {
 580     NTSTATUS status = NtTerminateThread( handle, exit_code );
 581     if (status) SetLastError( RtlNtStatusToDosError(status) );
 582     return !status;
 583 }
 584
 585
 586 /**********************************************************************
 587  *              GetExitCodeThread (KERNEL32.@)
 588  *
 589  * Gets termination status of thread.
 590  *
 591  * RETURNS
 592  *    Success: TRUE
 593  *    Failure: FALSE
 594  */
 595 BOOL WINAPI GetExitCodeThread(
 596     HANDLE hthread, /* [in]  Handle to thread */
 597     LPDWORD exitcode) /* [out] Address to receive termination status */
 598 {
 599     BOOL ret;
 600     SERVER_START_REQ( get_thread_info )
 601     {
 602         req->handle = hthread;
 603         req->tid_in = 0;
 604         ret = !wine_server_call_err( req );
 605         if (ret && exitcode) *exitcode = reply->exit_code;
 606     }
 607     SERVER_END_REQ;
 608     return ret;
 609 }
 610
 611
 612 /**********************************************************************
 613  * ResumeThread [KERNEL32.@]  Resumes a thread.
 614  *
 615  * Decrements a thread's suspend count.  When count is zero, the
 616  * execution of the thread is resumed.
 617  *
 618  * RETURNS
 619  *    Success: Previous suspend count
 620  *    Failure: 0xFFFFFFFF
 621  *    Already running: 0
 622  */
 623 DWORD WINAPI ResumeThread(
 624     HANDLE hthread) /* [in] Identifies thread to restart */
 625 {
 626     DWORD ret = 0xffffffff;
 627     SERVER_START_REQ( resume_thread )
 628     {
 629         req->handle = hthread;
 630         if (!wine_server_call_err( req )) ret = reply->count;
 631     }
 632     SERVER_END_REQ;
 633     return ret;
 634 }
 635
 636
 637 /**********************************************************************
 638  * SuspendThread [KERNEL32.@]  Suspends a thread.
 639  *
 640  * RETURNS
 641  *    Success: Previous suspend count
 642  *    Failure: 0xFFFFFFFF
 643  */
 644 DWORD WINAPI SuspendThread(
 645     HANDLE hthread) /* [in] Handle to the thread */
 646 {
 647     DWORD ret = 0xffffffff;
 648     SERVER_START_REQ( suspend_thread )
 649     {
 650         req->handle = hthread;
 651         if (!wine_server_call_err( req )) ret = reply->count;
 652     }
 653     SERVER_END_REQ;
 654     return ret;
 655 }
 656
 657
 658 /***********************************************************************
 659  *              QueueUserAPC  (KERNEL32.@)
 660  */
 661 DWORD WINAPI QueueUserAPC( PAPCFUNC func, HANDLE hthread, ULONG_PTR data )
 662 {
 663     DWORD ret;
 664     SERVER_START_REQ( queue_apc )
 665     {
 666         req->handle = hthread;
 667         req->user   = 1;
 668         req->func   = func;
 669         req->param  = (void *)data;
 670         ret = !wine_server_call_err( req );
 671     }
 672     SERVER_END_REQ;
 673     return ret;
 674 }
 675
 676
 677 /**********************************************************************
 678  * GetThreadTimes [KERNEL32.@]  Obtains timing information.
 679  *
 680  * NOTES
 681  *    What are the fields where these values are stored?
 682  *
 683  * RETURNS
 684  *    Success: TRUE
 685  *    Failure: FALSE
 686  */
 687 BOOL WINAPI GetThreadTimes(
 688     HANDLE thread,         /* [in]  Specifies the thread of interest */
 689     LPFILETIME creationtime, /* [out] When the thread was created */
 690     LPFILETIME exittime,     /* [out] When the thread was destroyed */
 691     LPFILETIME kerneltime,   /* [out] Time thread spent in kernel mode */
 692     LPFILETIME usertime)     /* [out] Time thread spent in user mode */
 693 {
 694     FIXME("(0x%08x): stub\n",thread);
 695     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 696     return FALSE;
 697 }
 698
 699
 700 /**********************************************************************
 701  * VWin32_BoostThreadGroup [KERNEL.535]
 702  */
 703 VOID WINAPI VWin32_BoostThreadGroup( DWORD threadId, INT boost )
 704 {
 705     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 706 }
 707
 708 /**********************************************************************
 709  * VWin32_BoostThreadStatic [KERNEL.536]
 710  */
 711 VOID WINAPI VWin32_BoostThreadStatic( DWORD threadId, INT boost )
 712 {
 713     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 714 }
 715
 716
 717 /***********************************************************************
 718  * GetCurrentThread [KERNEL32.@]  Gets pseudohandle for current thread
 719  *
 720  * RETURNS
 721  *    Pseudohandle for the current thread
 722  */
 723 #undef GetCurrentThread
 724 HANDLE WINAPI GetCurrentThread(void)
 725 {
 726     return (HANDLE)0xfffffffe;
 727 }
 728
 729
 730 /***********************************************************************
 731  * ProcessIdToSessionId   (KERNEL32.@)
 732  * This function is available on Terminal Server 4SP4 and Windows 2000
 733  */
 734 BOOL WINAPI ProcessIdToSessionId( DWORD procid, DWORD *sessionid_ptr )
 735 {
 736         /* According to MSDN, if the calling process is not in a terminal
 737          * services environment, then the sessionid returned is zero.
 738          */
 739         *sessionid_ptr = 0;
 740         return TRUE;
 741 }
 742
 743 /***********************************************************************
 744  * SetThreadExecutionState (KERNEL32.@)
 745  *
 746  * Informs the system that activity is taking place for
 747  * power management purposes.
 748  */
 749 EXECUTION_STATE WINAPI SetThreadExecutionState(EXECUTION_STATE flags)
 750 {
 751     static EXECUTION_STATE current =
 752             ES_SYSTEM_REQUIRED|ES_DISPLAY_REQUIRED|ES_USER_PRESENT;
 753     EXECUTION_STATE old = current;
 754
 755     if (!(current & ES_CONTINUOUS) || (flags & ES_CONTINUOUS))
 756         current = flags;
 757     FIXME("(0x%lx): stub, harmless (power management).\n", flags);
 758     return old;
 759 }
 760
 761
 762 #ifdef __i386__
 763
 764 /***********************************************************************
 765  *              SetLastError (KERNEL.147)
 766  *              SetLastError (KERNEL32.@)
 767  */
 768 /* void WINAPI SetLastError( DWORD error ); */
 769 __ASM_GLOBAL_FUNC( SetLastError,
 770                    "movl 4(%esp),%eax\n\t"
 771                    ".byte 0x64\n\t"
 772                    "movl %eax,0x60\n\t"
 773                    "ret $4" );
 774
 775 /***********************************************************************
 776  *              GetLastError (KERNEL.148)
 777  *              GetLastError (KERNEL32.@)
 778  */
 779 /* DWORD WINAPI GetLastError(void); */
 780 __ASM_GLOBAL_FUNC( GetLastError, ".byte 0x64\n\tmovl 0x60,%eax\n\tret" );
 781
 782 /***********************************************************************
 783  *              GetCurrentProcessId (KERNEL.471)
 784  *              GetCurrentProcessId (KERNEL32.@)
 785  */
 786 /* DWORD WINAPI GetCurrentProcessId(void) */
 787 __ASM_GLOBAL_FUNC( GetCurrentProcessId, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" );
 788
 789 /***********************************************************************
 790  *              GetCurrentThreadId (KERNEL.462)
 791  *              GetCurrentThreadId (KERNEL32.@)
 792  */
 793 /* DWORD WINAPI GetCurrentThreadId(void) */
 794 __ASM_GLOBAL_FUNC( GetCurrentThreadId, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" );
 795
 796 #else  /* __i386__ */
 797
 798 /**********************************************************************
 799  *              SetLastError (KERNEL.147)
 800  *              SetLastError (KERNEL32.@)
 801  *
 802  * Sets the last-error code.
 803  */
 804 void WINAPI SetLastError( DWORD error ) /* [in] Per-thread error code */
 805 {
 806     NtCurrentTeb()->last_error = error;
 807 }
 808
 809 /**********************************************************************
 810  *              GetLastError (KERNEL.148)
 811  *              GetLastError (KERNEL32.@)
 812  *
 813  * Returns last-error code.
 814  */
 815 DWORD WINAPI GetLastError(void)
 816 {
 817     return NtCurrentTeb()->last_error;
 818 }
 819
 820 /***********************************************************************
 821  *              GetCurrentProcessId (KERNEL.471)
 822  *              GetCurrentProcessId (KERNEL32.@)
 823  *
 824  * Returns process identifier.
 825  */
 826 DWORD WINAPI GetCurrentProcessId(void)
 827 {
 828     return (DWORD)NtCurrentTeb()->pid;
 829 }
 830
 831 /***********************************************************************
 832  *              GetCurrentThreadId (KERNEL.462)
 833  *              GetCurrentThreadId (KERNEL32.@)
 834  *
 835  * Returns thread identifier.
 836  */
 837 DWORD WINAPI GetCurrentThreadId(void)
 838 {
 839     return (DWORD)NtCurrentTeb()->tid;
 840 }
 841
 842 #endif  /* __i386__ */