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
  59     {
  60         struct get_thread_info_request *req = server_alloc_req( sizeof(*req), 0 );
  61         req->handle = 0;
  62         req->tid_in = (void *)id;
  63         if (!server_call_noerr( REQ_GET_THREAD_INFO )) 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 = (TDB *)GlobalLock16( 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->socket    = -1;
  94     teb->request_fd = -1;
  95     teb->reply_fd   = -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     if (teb->socket != -1) close( teb->socket );
 118     close( teb->request_fd );
 119     close( teb->reply_fd );
 120     if (teb->stack_sel) FreeSelector16( teb->stack_sel );
 121     FreeSelector16( teb->teb_sel );
 122     if (teb->buffer) munmap( (void *)teb->buffer,
 123                              (char *)(teb->buffer_info+1) - (char *)teb->buffer );
 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, BOOL alloc_stack16 )
 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     if (alloc_stack16) total_size += 0x10000;
 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     if (alloc_stack16)
 203     {
 204         teb->stack_sel = SELECTOR_AllocBlock( teb->stack_top, 0x10000, WINE_LDT_FLAGS_DATA );
 205         if (!teb->stack_sel) goto error;
 206         teb->cur_stack = MAKESEGPTR( teb->stack_sel, 0x10000 - sizeof(STACK16FRAME) );
 207     }
 208     return teb;
 209
 210 error:
 211     THREAD_FreeTEB( teb );
 212     return NULL;
 213 }
 214
 215
 216 /***********************************************************************
 217  *           thread_errno_location
 218  *
 219  * Get the per-thread errno location.
 220  */
 221 static int *thread_errno_location(void)
 222 {
 223     return &NtCurrentTeb()->thread_errno;
 224 }
 225
 226 /***********************************************************************
 227  *           thread_h_errno_location
 228  *
 229  * Get the per-thread h_errno location.
 230  */
 231 static int *thread_h_errno_location(void)
 232 {
 233     return &NtCurrentTeb()->thread_h_errno;
 234 }
 235
 236 /***********************************************************************
 237  *           THREAD_Init
 238  *
 239  * Setup the initial thread.
 240  *
 241  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 242  */
 243 void THREAD_Init(void)
 244 {
 245     if (!initial_teb.self)  /* do it only once */
 246     {
 247         THREAD_InitTEB( &initial_teb );
 248         assert( initial_teb.teb_sel );
 249         initial_teb.process = &current_process;
 250         SYSDEPS_SetCurThread( &initial_teb );
 251         wine_errno_location = thread_errno_location;
 252         wine_h_errno_location = thread_h_errno_location;
 253     }
 254 }
 255
 256 DECL_GLOBAL_CONSTRUCTOR(thread_init) { THREAD_Init(); }
 257
 258 /***********************************************************************
 259  *           THREAD_Create
 260  *
 261  */
 262 TEB *THREAD_Create( int fd, DWORD stack_size, BOOL alloc_stack16 )
 263 {
 264     TEB *teb;
 265
 266     if ((teb = THREAD_InitStack( NULL, stack_size, alloc_stack16 )))
 267     {
 268         teb->tibflags = TEBF_WIN32;
 269         teb->process  = NtCurrentTeb()->process;
 270         teb->socket   = fd;
 271         fcntl( fd, F_SETFD, 1 ); /* set close on exec flag */
 272         TRACE("(%p) succeeded\n", teb);
 273     }
 274     return teb;
 275 }
 276
 277
 278 /***********************************************************************
 279  *           THREAD_Start
 280  *
 281  * Start execution of a newly created thread. Does not return.
 282  */
 283 static void THREAD_Start(void)
 284 {
 285     HANDLE cleanup_object;
 286     LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)NtCurrentTeb()->entry_point;
 287
 288     /* install cleanup handler */
 289     if (DuplicateHandle( GetCurrentProcess(), GetCurrentThread(),
 290                          GetCurrentProcess(), &cleanup_object,
 291                          0, FALSE, DUPLICATE_SAME_ACCESS ))
 292         NtCurrentTeb()->cleanup = SERVICE_AddObject( cleanup_object, (PAPCFUNC)THREAD_FreeTEB,
 293                                                      (ULONG_PTR)NtCurrentTeb() );
 294
 295     PROCESS_CallUserSignalProc( USIG_THREAD_INIT, 0 );
 296     PE_InitTls();
 297     MODULE_DllThreadAttach( NULL );
 298     ExitThread( func( NtCurrentTeb()->entry_arg ) );
 299 }
 300
 301
 302 /***********************************************************************
 303  *           CreateThread   (KERNEL32.@)
 304  */
 305 HANDLE WINAPI CreateThread( SECURITY_ATTRIBUTES *sa, DWORD stack,
 306                             LPTHREAD_START_ROUTINE start, LPVOID param,
 307                             DWORD flags, LPDWORD id )
 308 {
 309     int socket = -1;
 310     HANDLE handle = 0;
 311     TEB *teb;
 312     void *tid = 0;
 313
 314     SERVER_START_REQ
 315     {
 316         struct new_thread_request *req = server_alloc_req( sizeof(*req), 0 );
 317
 318         req->suspend = ((flags & CREATE_SUSPENDED) != 0);
 319         req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
 320         if (!server_call( REQ_NEW_THREAD ))
 321         {
 322             handle = req->handle;
 323             tid = req->tid;
 324             socket = wine_server_recv_fd( handle, 0 );
 325         }
 326     }
 327     SERVER_END_REQ;
 328     if (!handle) return 0;
 329
 330     if (!(teb = THREAD_Create( socket, stack, TRUE )))
 331     {
 332         close( socket );
 333         return 0;
 334     }
 335     teb->entry_point = start;
 336     teb->entry_arg   = param;
 337     teb->startup     = THREAD_Start;
 338     teb->htask16     = GetCurrentTask();
 339     if (id) *id = (DWORD)tid;
 340     if (SYSDEPS_SpawnThread( teb ) == -1)
 341     {
 342         CloseHandle( handle );
 343         THREAD_FreeTEB( teb );
 344         return 0;
 345     }
 346     return handle;
 347 }
 348
 349 /***********************************************************************
 350  *           CreateThread16   (KERNEL.441)
 351  */
 352 static DWORD CALLBACK THREAD_StartThread16( LPVOID threadArgs )
 353 {
 354     FARPROC16 start = ((FARPROC16 *)threadArgs)[0];
 355     DWORD     param = ((DWORD *)threadArgs)[1];
 356     HeapFree( GetProcessHeap(), 0, threadArgs );
 357
 358     ((LPDWORD)CURRENT_STACK16)[-1] = param;
 359     return wine_call_to_16_long( start, sizeof(DWORD) );
 360 }
 361 HANDLE WINAPI CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack,
 362                               FARPROC16 start, SEGPTR param,
 363                               DWORD flags, LPDWORD id )
 364 {
 365     DWORD *threadArgs = HeapAlloc( GetProcessHeap(), 0, 2*sizeof(DWORD) );
 366     if (!threadArgs) return INVALID_HANDLE_VALUE;
 367     threadArgs[0] = (DWORD)start;
 368     threadArgs[1] = (DWORD)param;
 369
 370     return CreateThread( sa, stack, THREAD_StartThread16, threadArgs, flags, id );
 371 }
 372
 373
 374 /***********************************************************************
 375  * ExitThread [KERNEL32.215]  Ends a thread
 376  *
 377  * RETURNS
 378  *    None
 379  */
 380 void WINAPI ExitThread( DWORD code ) /* [in] Exit code for this thread */
 381 {
 382     BOOL last;
 383     SERVER_START_REQ
 384     {
 385         struct terminate_thread_request *req = server_alloc_req( sizeof(*req), 0 );
 386
 387         /* send the exit code to the server */
 388         req->handle    = GetCurrentThread();
 389         req->exit_code = code;
 390         server_call( REQ_TERMINATE_THREAD );
 391         last = req->last;
 392     }
 393     SERVER_END_REQ;
 394
 395     if (last)
 396     {
 397         MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 398         exit( code );
 399     }
 400     else
 401     {
 402         MODULE_DllThreadDetach( NULL );
 403         if (!(NtCurrentTeb()->tibflags & TEBF_WIN32)) TASK_ExitTask();
 404         SYSDEPS_ExitThread( code );
 405     }
 406 }
 407
 408
 409 /***********************************************************************
 410  * SetThreadContext [KERNEL32.670]  Sets context of thread.
 411  *
 412  * RETURNS
 413  *    Success: TRUE
 414  *    Failure: FALSE
 415  */
 416 BOOL WINAPI SetThreadContext( HANDLE handle,           /* [in]  Handle to thread with context */
 417                               const CONTEXT *context ) /* [in] Address of context structure */
 418 {
 419     BOOL ret;
 420     SERVER_START_REQ
 421     {
 422         struct set_thread_context_request *req = server_alloc_req( sizeof(*req),
 423                                                                    sizeof(*context) );
 424         req->handle = handle;
 425         req->flags = context->ContextFlags;
 426         memcpy( server_data_ptr(req), context, sizeof(*context) );
 427         ret = !server_call( REQ_SET_THREAD_CONTEXT );
 428     }
 429     SERVER_END_REQ;
 430     return ret;
 431 }
 432
 433
 434 /***********************************************************************
 435  * GetThreadContext [KERNEL32.@]  Retrieves context of thread.
 436  *
 437  * RETURNS
 438  *    Success: TRUE
 439  *    Failure: FALSE
 440  */
 441 BOOL WINAPI GetThreadContext( HANDLE handle,     /* [in]  Handle to thread with context */
 442                               CONTEXT *context ) /* [out] Address of context structure */
 443 {
 444     BOOL ret;
 445     SERVER_START_REQ
 446     {
 447         struct get_thread_context_request *req = server_alloc_req( sizeof(*req),
 448                                                                    sizeof(*context) );
 449         req->handle = handle;
 450         req->flags = context->ContextFlags;
 451         memcpy( server_data_ptr(req), context, sizeof(*context) );
 452         if ((ret = !server_call( REQ_GET_THREAD_CONTEXT )))
 453             memcpy( context, server_data_ptr(req), sizeof(*context) );
 454     }
 455     SERVER_END_REQ;
 456     return ret;
 457 }
 458
 459
 460 /**********************************************************************
 461  * GetThreadPriority [KERNEL32.@]  Returns priority for thread.
 462  *
 463  * RETURNS
 464  *    Success: Thread's priority level.
 465  *    Failure: THREAD_PRIORITY_ERROR_RETURN
 466  */
 467 INT WINAPI GetThreadPriority(
 468     HANDLE hthread) /* [in] Handle to thread */
 469 {
 470     INT ret = THREAD_PRIORITY_ERROR_RETURN;
 471     SERVER_START_REQ
 472     {
 473         struct get_thread_info_request *req = server_alloc_req( sizeof(*req), 0 );
 474         req->handle = hthread;
 475         req->tid_in = 0;
 476         if (!server_call( REQ_GET_THREAD_INFO )) ret = req->priority;
 477     }
 478     SERVER_END_REQ;
 479     return ret;
 480 }
 481
 482
 483 /**********************************************************************
 484  * SetThreadPriority [KERNEL32.@]  Sets priority for thread.
 485  *
 486  * RETURNS
 487  *    Success: TRUE
 488  *    Failure: FALSE
 489  */
 490 BOOL WINAPI SetThreadPriority(
 491     HANDLE hthread, /* [in] Handle to thread */
 492     INT priority)   /* [in] Thread priority level */
 493 {
 494     BOOL ret;
 495     SERVER_START_REQ
 496     {
 497         struct set_thread_info_request *req = server_alloc_req( sizeof(*req), 0 );
 498         req->handle   = hthread;
 499         req->priority = priority;
 500         req->mask     = SET_THREAD_INFO_PRIORITY;
 501         ret = !server_call( REQ_SET_THREAD_INFO );
 502     }
 503     SERVER_END_REQ;
 504     return ret;
 505 }
 506
 507
 508 /**********************************************************************
 509  * GetThreadPriorityBoost [KERNEL32.877]  Returns priority boost for thread.
 510  *
 511  * Always reports that priority boost is disabled.
 512  *
 513  * RETURNS
 514  *    Success: TRUE.
 515  *    Failure: FALSE
 516  */
 517 BOOL WINAPI GetThreadPriorityBoost(
 518     HANDLE hthread, /* [in] Handle to thread */
 519     PBOOL pstate)   /* [out] pointer to var that receives the boost state */
 520 {
 521     if (pstate) *pstate = FALSE;
 522     return NO_ERROR;
 523 }
 524
 525
 526 /**********************************************************************
 527  * SetThreadPriorityBoost [KERNEL32.893]  Sets priority boost for thread.
 528  *
 529  * Priority boost is not implemented. Thsi function always returns
 530  * FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
 531  *
 532  * RETURNS
 533  *    Always returns FALSE to indicate a failure
 534  */
 535 BOOL WINAPI SetThreadPriorityBoost(
 536     HANDLE hthread, /* [in] Handle to thread */
 537     BOOL disable)   /* [in] TRUE to disable priority boost */
 538 {
 539     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 540     return FALSE;
 541 }
 542
 543
 544 /**********************************************************************
 545  *           SetThreadAffinityMask   (KERNEL32.669)
 546  */
 547 DWORD WINAPI SetThreadAffinityMask( HANDLE hThread, DWORD dwThreadAffinityMask )
 548 {
 549     DWORD ret;
 550     SERVER_START_REQ
 551     {
 552         struct set_thread_info_request *req = server_alloc_req( sizeof(*req), 0 );
 553         req->handle   = hThread;
 554         req->affinity = dwThreadAffinityMask;
 555         req->mask     = SET_THREAD_INFO_AFFINITY;
 556         ret = !server_call( REQ_SET_THREAD_INFO );
 557         /* FIXME: should return previous value */
 558     }
 559     SERVER_END_REQ;
 560     return ret;
 561 }
 562
 563
 564 /**********************************************************************
 565  * TerminateThread [KERNEL32.685]  Terminates a thread
 566  *
 567  * RETURNS
 568  *    Success: TRUE
 569  *    Failure: FALSE
 570  */
 571 BOOL WINAPI TerminateThread( HANDLE handle,    /* [in] Handle to thread */
 572                              DWORD exit_code)  /* [in] Exit code for thread */
 573 {
 574     NTSTATUS status = NtTerminateThread( handle, exit_code );
 575     if (status) SetLastError( RtlNtStatusToDosError(status) );
 576     return !status;
 577 }
 578
 579
 580 /**********************************************************************
 581  *              GetExitCodeThread (KERNEL32.@)
 582  *              GetExitCodeThread (WIN32S16.13)
 583  *
 584  * Gets termination status of thread.
 585  *
 586  * RETURNS
 587  *    Success: TRUE
 588  *    Failure: FALSE
 589  */
 590 BOOL WINAPI GetExitCodeThread(
 591     HANDLE hthread, /* [in]  Handle to thread */
 592     LPDWORD exitcode) /* [out] Address to receive termination status */
 593 {
 594     BOOL ret;
 595     SERVER_START_REQ
 596     {
 597         struct get_thread_info_request *req = server_alloc_req( sizeof(*req), 0 );
 598         req->handle = hthread;
 599         req->tid_in = 0;
 600         ret = !server_call( REQ_GET_THREAD_INFO );
 601         if (ret && exitcode) *exitcode = req->exit_code;
 602     }
 603     SERVER_END_REQ;
 604     return ret;
 605 }
 606
 607
 608 /**********************************************************************
 609  * ResumeThread [KERNEL32.587]  Resumes a thread.
 610  *
 611  * Decrements a thread's suspend count.  When count is zero, the
 612  * execution of the thread is resumed.
 613  *
 614  * RETURNS
 615  *    Success: Previous suspend count
 616  *    Failure: 0xFFFFFFFF
 617  *    Already running: 0
 618  */
 619 DWORD WINAPI ResumeThread(
 620     HANDLE hthread) /* [in] Identifies thread to restart */
 621 {
 622     DWORD ret = 0xffffffff;
 623     SERVER_START_REQ
 624     {
 625         struct resume_thread_request *req = server_alloc_req( sizeof(*req), 0 );
 626         req->handle = hthread;
 627         if (!server_call( REQ_RESUME_THREAD )) ret = req->count;
 628     }
 629     SERVER_END_REQ;
 630     return ret;
 631 }
 632
 633
 634 /**********************************************************************
 635  * SuspendThread [KERNEL32.681]  Suspends a thread.
 636  *
 637  * RETURNS
 638  *    Success: Previous suspend count
 639  *    Failure: 0xFFFFFFFF
 640  */
 641 DWORD WINAPI SuspendThread(
 642     HANDLE hthread) /* [in] Handle to the thread */
 643 {
 644     DWORD ret = 0xffffffff;
 645     SERVER_START_REQ
 646     {
 647         struct suspend_thread_request *req = server_alloc_req( sizeof(*req), 0 );
 648         req->handle = hthread;
 649         if (!server_call( REQ_SUSPEND_THREAD )) ret = req->count;
 650     }
 651     SERVER_END_REQ;
 652     return ret;
 653 }
 654
 655
 656 /***********************************************************************
 657  *              QueueUserAPC  (KERNEL32.566)
 658  */
 659 DWORD WINAPI QueueUserAPC( PAPCFUNC func, HANDLE hthread, ULONG_PTR data )
 660 {
 661     DWORD ret;
 662     SERVER_START_REQ
 663     {
 664         struct queue_apc_request *req = server_alloc_req( sizeof(*req), 0 );
 665         req->handle = hthread;
 666         req->user   = 1;
 667         req->func   = func;
 668         req->param  = (void *)data;
 669         ret = !server_call( REQ_QUEUE_APC );
 670     }
 671     SERVER_END_REQ;
 672     return ret;
 673 }
 674
 675
 676 /**********************************************************************
 677  * GetThreadTimes [KERNEL32.@]  Obtains timing information.
 678  *
 679  * NOTES
 680  *    What are the fields where these values are stored?
 681  *
 682  * RETURNS
 683  *    Success: TRUE
 684  *    Failure: FALSE
 685  */
 686 BOOL WINAPI GetThreadTimes(
 687     HANDLE thread,         /* [in]  Specifies the thread of interest */
 688     LPFILETIME creationtime, /* [out] When the thread was created */
 689     LPFILETIME exittime,     /* [out] When the thread was destroyed */
 690     LPFILETIME kerneltime,   /* [out] Time thread spent in kernel mode */
 691     LPFILETIME usertime)     /* [out] Time thread spent in user mode */
 692 {
 693     FIXME("(0x%08x): stub\n",thread);
 694     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 695     return FALSE;
 696 }
 697
 698
 699 /**********************************************************************
 700  * VWin32_BoostThreadGroup [KERNEL.535]
 701  */
 702 VOID WINAPI VWin32_BoostThreadGroup( DWORD threadId, INT boost )
 703 {
 704     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 705 }
 706
 707 /**********************************************************************
 708  * VWin32_BoostThreadStatic [KERNEL.536]
 709  */
 710 VOID WINAPI VWin32_BoostThreadStatic( DWORD threadId, INT boost )
 711 {
 712     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 713 }
 714
 715
 716 /***********************************************************************
 717  *           GetThreadLocale    (KERNEL32.@)
 718  */
 719 LCID WINAPI GetThreadLocale(void)
 720 {
 721     LCID ret = NtCurrentTeb()->CurrentLocale;
 722     if (!ret) NtCurrentTeb()->CurrentLocale = ret = GetUserDefaultLCID();
 723     return ret;
 724 }
 725
 726
 727 /**********************************************************************
 728  * SetThreadLocale [KERNEL32.671]  Sets the calling threads current locale.
 729  *
 730  * RETURNS
 731  *    Success: TRUE
 732  *    Failure: FALSE
 733  *
 734  * FIXME
 735  *  check if lcid is a valid cp
 736  */
 737 BOOL WINAPI SetThreadLocale(
 738     LCID lcid)     /* [in] Locale identifier */
 739 {
 740     switch (lcid)
 741     {
 742       case LOCALE_SYSTEM_DEFAULT:
 743         lcid = GetSystemDefaultLCID();
 744         break;
 745       case LOCALE_USER_DEFAULT:
 746       case LOCALE_NEUTRAL:
 747         lcid = GetUserDefaultLCID();
 748         break;
 749     }
 750     NtCurrentTeb()->CurrentLocale = lcid;
 751     return TRUE;
 752 }
 753
 754
 755 /***********************************************************************
 756  * GetCurrentThread [KERNEL32.@]  Gets pseudohandle for current thread
 757  *
 758  * RETURNS
 759  *    Pseudohandle for the current thread
 760  */
 761 #undef GetCurrentThread
 762 HANDLE WINAPI GetCurrentThread(void)
 763 {
 764     return 0xfffffffe;
 765 }
 766
 767
 768 /***********************************************************************
 769  * ProcessIdToSessionId   (KERNEL32.@)
 770  * This function is available on Terminal Server 4SP4 and Windows 2000
 771  */
 772 BOOL WINAPI ProcessIdToSessionId( DWORD procid, DWORD *sessionid_ptr )
 773 {
 774         /* According to MSDN, if the calling process is not in a terminal
 775          * services environment, then the sessionid returned is zero.
 776          */
 777         *sessionid_ptr = 0;
 778         return TRUE;
 779 }
 780
 781
 782 #ifdef __i386__
 783
 784 /* void WINAPI SetLastError( DWORD error ); */
 785 __ASM_GLOBAL_FUNC( SetLastError,
 786                    "movl 4(%esp),%eax\n\t"
 787                    ".byte 0x64\n\t"
 788                    "movl %eax,0x60\n\t"
 789                    "ret $4" );
 790
 791 /* DWORD WINAPI GetLastError(void); */
 792 __ASM_GLOBAL_FUNC( GetLastError, ".byte 0x64\n\tmovl 0x60,%eax\n\tret" );
 793
 794 /* DWORD WINAPI GetCurrentProcessId(void) */
 795 __ASM_GLOBAL_FUNC( GetCurrentProcessId, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" );
 796
 797 /* DWORD WINAPI GetCurrentThreadId(void) */
 798 __ASM_GLOBAL_FUNC( GetCurrentThreadId, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" );
 799
 800 #else  /* __i386__ */
 801
 802 /**********************************************************************
 803  *              SetLastError (KERNEL.147)
 804  *              SetLastError (KERNEL32.@)
 805  *
 806  * Sets the last-error code.
 807  */
 808 void WINAPI SetLastError( DWORD error ) /* [in] Per-thread error code */
 809 {
 810     NtCurrentTeb()->last_error = error;
 811 }
 812
 813 /**********************************************************************
 814  *              GetLastError (KERNEL.10)
 815  *              GetLastError (KERNEL32.@)
 816  *              GetLastError (WIN32S16.10)
 817  *
 818  * Returns last-error code.
 819  */
 820 DWORD WINAPI GetLastError(void)
 821 {
 822     return NtCurrentTeb()->last_error;
 823 }
 824
 825 /***********************************************************************
 826  *              GetCurrentProcessId (KERNEL.471)
 827  *              GetCurrentProcessId (KERNEL32.@)
 828  *
 829  * Returns process identifier.
 830  */
 831 DWORD WINAPI GetCurrentProcessId(void)
 832 {
 833     return (DWORD)NtCurrentTeb()->pid;
 834 }
 835
 836 /***********************************************************************
 837  *              GetCurrentThreadId (KERNEL.462)
 838  *              GetCurrentThreadId (KERNEL32.@)
 839  *
 840  * Returns thread identifier.
 841  */
 842 DWORD WINAPI GetCurrentThreadId(void)
 843 {
 844     return (DWORD)NtCurrentTeb()->tid;
 845 }
 846
 847 #endif  /* __i386__ */