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 "thread.h"
  18 #include "process.h"
  19 #include "task.h"
  20 #include "module.h"
  21 #include "global.h"
  22 #include "winerror.h"
  23 #include "heap.h"
  24 #include "selectors.h"
  25 #include "winnt.h"
  26 #include "server.h"
  27 #include "services.h"
  28 #include "stackframe.h"
  29 #include "builtin16.h"
  30 #include "debugtools.h"
  31 #include "winnls.h"
  32
  33 DEFAULT_DEBUG_CHANNEL(thread);
  34
  35 /* TEB of the initial thread */
  36 static TEB initial_teb;
  37
  38 /***********************************************************************
  39  *           THREAD_IsWin16
  40  */
  41 BOOL THREAD_IsWin16( TEB *teb )
  42 {
  43     return !teb || !(teb->tibflags & TEBF_WIN32);
  44 }
  45
  46 /***********************************************************************
  47  *           THREAD_IdToTEB
  48  *
  49  * Convert a thread id to a TEB, making sure it is valid.
  50  */
  51 TEB *THREAD_IdToTEB( DWORD id )
  52 {
  53     TEB *ret = NULL;
  54
  55     if (!id || id == GetCurrentThreadId()) return NtCurrentTeb();
  56
  57     SERVER_START_REQ
  58     {
  59         struct get_thread_info_request *req = server_alloc_req( sizeof(*req), 0 );
  60         req->handle = -1;
  61         req->tid_in = (void *)id;
  62         if (!server_call_noerr( REQ_GET_THREAD_INFO )) 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->socket    = -1;
  93     teb->stack_top = (void *)~0UL;
  94     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
  95     teb->StaticUnicodeString.Buffer = (PWSTR)teb->StaticUnicodeBuffer;
  96     teb->teb_sel = SELECTOR_AllocBlock( teb, 0x1000, SEGMENT_DATA, TRUE, FALSE );
  97     return (teb->teb_sel != 0);
  98 }
  99
 100
 101 /***********************************************************************
 102  *           THREAD_FreeTEB
 103  *
 104  * Free data structures associated with a thread.
 105  * Must be called from the context of another thread.
 106  */
 107 static void CALLBACK THREAD_FreeTEB( TEB *teb )
 108 {
 109     TRACE("(%p) called\n", teb );
 110     if (teb->cleanup) SERVICE_Delete( teb->cleanup );
 111
 112     /* Free the associated memory */
 113
 114     if (teb->socket != -1) close( teb->socket );
 115     if (teb->stack_sel) SELECTOR_FreeBlock( teb->stack_sel, 1 );
 116     SELECTOR_FreeBlock( teb->teb_sel, 1 );
 117     if (teb->buffer) munmap( (void *)teb->buffer,
 118                              (char *)(teb->buffer_info+1) - (char *)teb->buffer );
 119     if (teb->debug_info) HeapFree( GetProcessHeap(), 0, teb->debug_info );
 120     VirtualFree( teb->stack_base, 0, MEM_RELEASE );
 121 }
 122
 123
 124 /***********************************************************************
 125  *           THREAD_InitStack
 126  *
 127  * Allocate the stack of a thread.
 128  */
 129 TEB *THREAD_InitStack( TEB *teb, DWORD stack_size, BOOL alloc_stack16 )
 130 {
 131     DWORD old_prot, total_size;
 132     DWORD page_size = VIRTUAL_GetPageSize();
 133     void *base;
 134
 135     /* Allocate the stack */
 136
 137     if (stack_size >= 16*1024*1024)
 138         WARN("Thread stack size is %ld MB.\n",stack_size/1024/1024);
 139
 140     /* if size is smaller than default, get stack size from parent */
 141     if (stack_size < 1024 * 1024)
 142     {
 143         if (teb)
 144             stack_size = 1024 * 1024;  /* no parent */
 145         else
 146             stack_size = ((char *)NtCurrentTeb()->stack_top - (char *)NtCurrentTeb()->stack_base
 147                           - SIGNAL_STACK_SIZE - 3 * page_size);
 148     }
 149
 150     /* FIXME: some Wine functions use a lot of stack, so we add 64Kb here */
 151     stack_size += 64 * 1024;
 152
 153     /* Memory layout in allocated block:
 154      *
 155      *   size                 contents
 156      * 1 page              NOACCESS guard page
 157      * SIGNAL_STACK_SIZE   signal stack
 158      * 1 page              NOACCESS guard page
 159      * 1 page              PAGE_GUARD guard page
 160      * stack_size          normal stack
 161      * 64Kb                16-bit stack (optional)
 162      * 1 page              TEB (except for initial thread)
 163      */
 164
 165     stack_size = (stack_size + (page_size - 1)) & ~(page_size - 1);
 166     total_size = stack_size + SIGNAL_STACK_SIZE + 3 * page_size;
 167     if (alloc_stack16) total_size += 0x10000;
 168     if (!teb) total_size += page_size;
 169
 170     if (!(base = VirtualAlloc( NULL, total_size, MEM_COMMIT, PAGE_EXECUTE_READWRITE )))
 171         return NULL;
 172
 173     if (!teb)
 174     {
 175         teb = (TEB *)((char *)base + total_size - page_size);
 176         if (!THREAD_InitTEB( teb ))
 177         {
 178             VirtualFree( base, 0, MEM_RELEASE );
 179             return NULL;
 180         }
 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     if (alloc_stack16)
 198     {
 199         teb->stack_sel = SELECTOR_AllocBlock( teb->stack_top, 0x10000, SEGMENT_DATA,
 200                                               FALSE, FALSE );
 201         if (!teb->stack_sel) goto error;
 202         teb->cur_stack = PTR_SEG_OFF_TO_SEGPTR( teb->stack_sel,
 203                                                 0x10000 - sizeof(STACK16FRAME) );
 204     }
 205     return teb;
 206
 207 error:
 208     THREAD_FreeTEB( teb );
 209     return NULL;
 210 }
 211
 212
 213 /***********************************************************************
 214  *           THREAD_Init
 215  *
 216  * Setup the initial thread.
 217  *
 218  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 219  */
 220 void THREAD_Init(void)
 221 {
 222     if (!initial_teb.self)  /* do it only once */
 223     {
 224         THREAD_InitTEB( &initial_teb );
 225         assert( initial_teb.teb_sel );
 226         initial_teb.process = &current_process;
 227         SYSDEPS_SetCurThread( &initial_teb );
 228     }
 229 }
 230
 231 DECL_GLOBAL_CONSTRUCTOR(thread_init) { THREAD_Init(); }
 232
 233 /***********************************************************************
 234  *           THREAD_Create
 235  *
 236  */
 237 TEB *THREAD_Create( int fd, DWORD stack_size, BOOL alloc_stack16 )
 238 {
 239     TEB *teb;
 240
 241     if ((teb = THREAD_InitStack( NULL, stack_size, alloc_stack16 )))
 242     {
 243         teb->tibflags = (current_process.flags & PDB32_WIN16_PROC) ? 0 : TEBF_WIN32;
 244         teb->process  = &current_process;
 245         teb->socket   = fd;
 246         fcntl( fd, F_SETFD, 1 ); /* set close on exec flag */
 247         TRACE("(%p) succeeded\n", teb);
 248     }
 249     return teb;
 250 }
 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     HANDLE cleanup_object;
 261     LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)NtCurrentTeb()->entry_point;
 262
 263     /* install cleanup handler */
 264     if (DuplicateHandle( GetCurrentProcess(), GetCurrentThread(),
 265                          GetCurrentProcess(), &cleanup_object,
 266                          0, FALSE, DUPLICATE_SAME_ACCESS ))
 267         NtCurrentTeb()->cleanup = SERVICE_AddObject( cleanup_object, (PAPCFUNC)THREAD_FreeTEB,
 268                                                      (ULONG_PTR)NtCurrentTeb() );
 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   (KERNEL32.63)
 279  */
 280 HANDLE WINAPI CreateThread( SECURITY_ATTRIBUTES *sa, DWORD stack,
 281                             LPTHREAD_START_ROUTINE start, LPVOID param,
 282                             DWORD flags, LPDWORD id )
 283 {
 284     int socket, handle = -1;
 285     TEB *teb;
 286     void *tid = 0;
 287
 288     SERVER_START_REQ
 289     {
 290         struct new_thread_request *req = server_alloc_req( sizeof(*req), 0 );
 291
 292         req->suspend = ((flags & CREATE_SUSPENDED) != 0);
 293         req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
 294         if (!server_call_fd( REQ_NEW_THREAD, -1, &socket ))
 295         {
 296             handle = req->handle;
 297             tid = req->tid;
 298         }
 299     }
 300     SERVER_END_REQ;
 301     if (handle == -1) return 0;
 302
 303     if (!(teb = THREAD_Create( socket, stack, TRUE )))
 304     {
 305         close( socket );
 306         return 0;
 307     }
 308     teb->tibflags   |= TEBF_WIN32;
 309     teb->entry_point = start;
 310     teb->entry_arg   = param;
 311     teb->startup     = THREAD_Start;
 312     teb->htask16     = GetCurrentTask();
 313     if (id) *id = (DWORD)tid;
 314     if (SYSDEPS_SpawnThread( teb ) == -1)
 315     {
 316         CloseHandle( handle );
 317         THREAD_FreeTEB( teb );
 318         return 0;
 319     }
 320     return handle;
 321 }
 322
 323 /***********************************************************************
 324  *           CreateThread16   (KERNEL.441)
 325  */
 326 static DWORD CALLBACK THREAD_StartThread16( LPVOID threadArgs )
 327 {
 328     FARPROC16 start = ((FARPROC16 *)threadArgs)[0];
 329     DWORD     param = ((DWORD *)threadArgs)[1];
 330     HeapFree( GetProcessHeap(), 0, threadArgs );
 331
 332     ((LPDWORD)CURRENT_STACK16)[-1] = param;
 333     return CallTo16Long( start, sizeof(DWORD) );
 334 }
 335 HANDLE WINAPI CreateThread16( SECURITY_ATTRIBUTES *sa, DWORD stack,
 336                               FARPROC16 start, SEGPTR param,
 337                               DWORD flags, LPDWORD id )
 338 {
 339     DWORD *threadArgs = HeapAlloc( GetProcessHeap(), 0, 2*sizeof(DWORD) );
 340     if (!threadArgs) return INVALID_HANDLE_VALUE;
 341     threadArgs[0] = (DWORD)start;
 342     threadArgs[1] = (DWORD)param;
 343
 344     return CreateThread( sa, stack, THREAD_StartThread16, threadArgs, flags, id );
 345 }
 346
 347
 348 /***********************************************************************
 349  * ExitThread [KERNEL32.215]  Ends a thread
 350  *
 351  * RETURNS
 352  *    None
 353  */
 354 void WINAPI ExitThread( DWORD code ) /* [in] Exit code for this thread */
 355 {
 356     BOOL last;
 357     SERVER_START_REQ
 358     {
 359         struct terminate_thread_request *req = server_alloc_req( sizeof(*req), 0 );
 360
 361         /* send the exit code to the server */
 362         req->handle    = GetCurrentThread();
 363         req->exit_code = code;
 364         server_call( REQ_TERMINATE_THREAD );
 365         last = req->last;
 366     }
 367     SERVER_END_REQ;
 368
 369     if (last)
 370     {
 371         MODULE_DllProcessDetach( TRUE, (LPVOID)1 );
 372         exit( code );
 373     }
 374     else
 375     {
 376         MODULE_DllThreadDetach( NULL );
 377         if (!(NtCurrentTeb()->tibflags & TEBF_WIN32)) TASK_KillTask( 0 );
 378         SYSDEPS_ExitThread( code );
 379     }
 380 }
 381
 382
 383 /**********************************************************************
 384  * TlsAlloc [KERNEL32.530]  Allocates a TLS index.
 385  *
 386  * Allocates a thread local storage index
 387  *
 388  * RETURNS
 389  *    Success: TLS Index
 390  *    Failure: 0xFFFFFFFF
 391  */
 392 DWORD WINAPI TlsAlloc( void )
 393 {
 394     DWORD i, mask, ret = 0;
 395     DWORD *bits = current_process.tls_bits;
 396     EnterCriticalSection( &current_process.crit_section );
 397     if (*bits == 0xffffffff)
 398     {
 399         bits++;
 400         ret = 32;
 401         if (*bits == 0xffffffff)
 402         {
 403             LeaveCriticalSection( &current_process.crit_section );
 404             SetLastError( ERROR_NO_MORE_ITEMS );
 405             return 0xffffffff;
 406         }
 407     }
 408     for (i = 0, mask = 1; i < 32; i++, mask <<= 1) if (!(*bits & mask)) break;
 409     *bits |= mask;
 410     LeaveCriticalSection( &current_process.crit_section );
 411     return ret + i;
 412 }
 413
 414
 415 /**********************************************************************
 416  * TlsFree [KERNEL32.531]  Releases a TLS index.
 417  *
 418  * Releases a thread local storage index, making it available for reuse
 419  *
 420  * RETURNS
 421  *    Success: TRUE
 422  *    Failure: FALSE
 423  */
 424 BOOL WINAPI TlsFree(
 425     DWORD index) /* [in] TLS Index to free */
 426 {
 427     DWORD mask;
 428     DWORD *bits = current_process.tls_bits;
 429     if (index >= 64)
 430     {
 431         SetLastError( ERROR_INVALID_PARAMETER );
 432         return FALSE;
 433     }
 434     EnterCriticalSection( &current_process.crit_section );
 435     if (index >= 32) bits++;
 436     mask = (1 << (index & 31));
 437     if (!(*bits & mask))  /* already free? */
 438     {
 439         LeaveCriticalSection( &current_process.crit_section );
 440         SetLastError( ERROR_INVALID_PARAMETER );
 441         return FALSE;
 442     }
 443     *bits &= ~mask;
 444     NtCurrentTeb()->tls_array[index] = 0;
 445     /* FIXME: should zero all other thread values */
 446     LeaveCriticalSection( &current_process.crit_section );
 447     return TRUE;
 448 }
 449
 450
 451 /**********************************************************************
 452  * TlsGetValue [KERNEL32.532]  Gets value in a thread's TLS slot
 453  *
 454  * RETURNS
 455  *    Success: Value stored in calling thread's TLS slot for index
 456  *    Failure: 0 and GetLastError returns NO_ERROR
 457  */
 458 LPVOID WINAPI TlsGetValue(
 459     DWORD index) /* [in] TLS index to retrieve value for */
 460 {
 461     if (index >= 64)
 462     {
 463         SetLastError( ERROR_INVALID_PARAMETER );
 464         return NULL;
 465     }
 466     SetLastError( ERROR_SUCCESS );
 467     return NtCurrentTeb()->tls_array[index];
 468 }
 469
 470
 471 /**********************************************************************
 472  * TlsSetValue [KERNEL32.533]  Stores a value in the thread's TLS slot.
 473  *
 474  * RETURNS
 475  *    Success: TRUE
 476  *    Failure: FALSE
 477  */
 478 BOOL WINAPI TlsSetValue(
 479     DWORD index,  /* [in] TLS index to set value for */
 480     LPVOID value) /* [in] Value to be stored */
 481 {
 482     if (index >= 64)
 483     {
 484         SetLastError( ERROR_INVALID_PARAMETER );
 485         return FALSE;
 486     }
 487     NtCurrentTeb()->tls_array[index] = value;
 488     return TRUE;
 489 }
 490
 491
 492 /***********************************************************************
 493  * SetThreadContext [KERNEL32.670]  Sets context of thread.
 494  *
 495  * RETURNS
 496  *    Success: TRUE
 497  *    Failure: FALSE
 498  */
 499 BOOL WINAPI SetThreadContext( HANDLE handle,           /* [in]  Handle to thread with context */
 500                               const CONTEXT *context ) /* [in] Address of context structure */
 501 {
 502     BOOL ret;
 503     SERVER_START_REQ
 504     {
 505         struct set_thread_context_request *req = server_alloc_req( sizeof(*req),
 506                                                                    sizeof(*context) );
 507         req->handle = handle;
 508         req->flags = context->ContextFlags;
 509         memcpy( server_data_ptr(req), context, sizeof(*context) );
 510         ret = !server_call( REQ_SET_THREAD_CONTEXT );
 511     }
 512     SERVER_END_REQ;
 513     return ret;
 514 }
 515
 516
 517 /***********************************************************************
 518  * GetThreadContext [KERNEL32.294]  Retrieves context of thread.
 519  *
 520  * RETURNS
 521  *    Success: TRUE
 522  *    Failure: FALSE
 523  */
 524 BOOL WINAPI GetThreadContext( HANDLE handle,     /* [in]  Handle to thread with context */
 525                               CONTEXT *context ) /* [out] Address of context structure */
 526 {
 527     BOOL ret;
 528     SERVER_START_REQ
 529     {
 530         struct get_thread_context_request *req = server_alloc_req( sizeof(*req),
 531                                                                    sizeof(*context) );
 532         req->handle = handle;
 533         req->flags = context->ContextFlags;
 534         memcpy( server_data_ptr(req), context, sizeof(*context) );
 535         if ((ret = !server_call( REQ_GET_THREAD_CONTEXT )))
 536             memcpy( context, server_data_ptr(req), sizeof(*context) );
 537     }
 538     SERVER_END_REQ;
 539     return ret;
 540 }
 541
 542
 543 /**********************************************************************
 544  * GetThreadPriority [KERNEL32.296]  Returns priority for thread.
 545  *
 546  * RETURNS
 547  *    Success: Thread's priority level.
 548  *    Failure: THREAD_PRIORITY_ERROR_RETURN
 549  */
 550 INT WINAPI GetThreadPriority(
 551     HANDLE hthread) /* [in] Handle to thread */
 552 {
 553     INT ret = THREAD_PRIORITY_ERROR_RETURN;
 554     SERVER_START_REQ
 555     {
 556         struct get_thread_info_request *req = server_alloc_req( sizeof(*req), 0 );
 557         req->handle = hthread;
 558         req->tid_in = 0;
 559         if (!server_call( REQ_GET_THREAD_INFO )) ret = req->priority;
 560     }
 561     SERVER_END_REQ;
 562     return ret;
 563 }
 564
 565
 566 /**********************************************************************
 567  * SetThreadPriority [KERNEL32.514]  Sets priority for thread.
 568  *
 569  * RETURNS
 570  *    Success: TRUE
 571  *    Failure: FALSE
 572  */
 573 BOOL WINAPI SetThreadPriority(
 574     HANDLE hthread, /* [in] Handle to thread */
 575     INT priority)   /* [in] Thread priority level */
 576 {
 577     BOOL ret;
 578     SERVER_START_REQ
 579     {
 580         struct set_thread_info_request *req = server_alloc_req( sizeof(*req), 0 );
 581         req->handle   = hthread;
 582         req->priority = priority;
 583         req->mask     = SET_THREAD_INFO_PRIORITY;
 584         ret = !server_call( REQ_SET_THREAD_INFO );
 585     }
 586     SERVER_END_REQ;
 587     return ret;
 588 }
 589
 590
 591 /**********************************************************************
 592  * GetThreadPriorityBoost [KERNEL32.877]  Returns priority boost for thread.
 593  *
 594  * Always reports that priority boost is disabled.
 595  *
 596  * RETURNS
 597  *    Success: TRUE.
 598  *    Failure: FALSE
 599  */
 600 BOOL WINAPI GetThreadPriorityBoost(
 601     HANDLE hthread, /* [in] Handle to thread */
 602     PBOOL pstate)   /* [out] pointer to var that receives the boost state */
 603 {
 604     if (pstate) *pstate = FALSE;
 605     return NO_ERROR;
 606 }
 607
 608
 609 /**********************************************************************
 610  * SetThreadPriorityBoost [KERNEL32.893]  Sets priority boost for thread.
 611  *
 612  * Priority boost is not implemented. Thsi function always returns
 613  * FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
 614  *
 615  * RETURNS
 616  *    Always returns FALSE to indicate a failure
 617  */
 618 BOOL WINAPI SetThreadPriorityBoost(
 619     HANDLE hthread, /* [in] Handle to thread */
 620     BOOL disable)   /* [in] TRUE to disable priority boost */
 621 {
 622     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 623     return FALSE;
 624 }
 625
 626
 627 /**********************************************************************
 628  *           SetThreadAffinityMask   (KERNEL32.669)
 629  */
 630 DWORD WINAPI SetThreadAffinityMask( HANDLE hThread, DWORD dwThreadAffinityMask )
 631 {
 632     DWORD ret;
 633     SERVER_START_REQ
 634     {
 635         struct set_thread_info_request *req = server_alloc_req( sizeof(*req), 0 );
 636         req->handle   = hThread;
 637         req->affinity = dwThreadAffinityMask;
 638         req->mask     = SET_THREAD_INFO_AFFINITY;
 639         ret = !server_call( REQ_SET_THREAD_INFO );
 640         /* FIXME: should return previous value */
 641     }
 642     SERVER_END_REQ;
 643     return ret;
 644 }
 645
 646
 647 /**********************************************************************
 648  * TerminateThread [KERNEL32.685]  Terminates a thread
 649  *
 650  * RETURNS
 651  *    Success: TRUE
 652  *    Failure: FALSE
 653  */
 654 BOOL WINAPI TerminateThread( HANDLE handle,    /* [in] Handle to thread */
 655                              DWORD exit_code)  /* [in] Exit code for thread */
 656 {
 657     NTSTATUS status = NtTerminateThread( handle, exit_code );
 658     if (status) SetLastError( RtlNtStatusToDosError(status) );
 659     return !status;
 660 }
 661
 662
 663 /**********************************************************************
 664  * GetExitCodeThread [KERNEL32.???]  Gets termination status of thread.
 665  *
 666  * RETURNS
 667  *    Success: TRUE
 668  *    Failure: FALSE
 669  */
 670 BOOL WINAPI GetExitCodeThread(
 671     HANDLE hthread, /* [in]  Handle to thread */
 672     LPDWORD exitcode) /* [out] Address to receive termination status */
 673 {
 674     BOOL ret;
 675     SERVER_START_REQ
 676     {
 677         struct get_thread_info_request *req = server_alloc_req( sizeof(*req), 0 );
 678         req->handle = hthread;
 679         req->tid_in = 0;
 680         ret = !server_call( REQ_GET_THREAD_INFO );
 681         if (ret && exitcode) *exitcode = req->exit_code;
 682     }
 683     SERVER_END_REQ;
 684     return ret;
 685 }
 686
 687
 688 /**********************************************************************
 689  * ResumeThread [KERNEL32.587]  Resumes a thread.
 690  *
 691  * Decrements a thread's suspend count.  When count is zero, the
 692  * execution of the thread is resumed.
 693  *
 694  * RETURNS
 695  *    Success: Previous suspend count
 696  *    Failure: 0xFFFFFFFF
 697  *    Already running: 0
 698  */
 699 DWORD WINAPI ResumeThread(
 700     HANDLE hthread) /* [in] Identifies thread to restart */
 701 {
 702     DWORD ret = 0xffffffff;
 703     SERVER_START_REQ
 704     {
 705         struct resume_thread_request *req = server_alloc_req( sizeof(*req), 0 );
 706         req->handle = hthread;
 707         if (!server_call( REQ_RESUME_THREAD )) ret = req->count;
 708     }
 709     SERVER_END_REQ;
 710     return ret;
 711 }
 712
 713
 714 /**********************************************************************
 715  * SuspendThread [KERNEL32.681]  Suspends a thread.
 716  *
 717  * RETURNS
 718  *    Success: Previous suspend count
 719  *    Failure: 0xFFFFFFFF
 720  */
 721 DWORD WINAPI SuspendThread(
 722     HANDLE hthread) /* [in] Handle to the thread */
 723 {
 724     DWORD ret = 0xffffffff;
 725     SERVER_START_REQ
 726     {
 727         struct suspend_thread_request *req = server_alloc_req( sizeof(*req), 0 );
 728         req->handle = hthread;
 729         if (!server_call( REQ_SUSPEND_THREAD )) ret = req->count;
 730     }
 731     SERVER_END_REQ;
 732     return ret;
 733 }
 734
 735
 736 /***********************************************************************
 737  *              QueueUserAPC  (KERNEL32.566)
 738  */
 739 DWORD WINAPI QueueUserAPC( PAPCFUNC func, HANDLE hthread, ULONG_PTR data )
 740 {
 741     DWORD ret;
 742     SERVER_START_REQ
 743     {
 744         struct queue_apc_request *req = server_alloc_req( sizeof(*req), 0 );
 745         req->handle = hthread;
 746         req->func   = func;
 747         req->param  = (void *)data;
 748         ret = !server_call( REQ_QUEUE_APC );
 749     }
 750     SERVER_END_REQ;
 751     return ret;
 752 }
 753
 754
 755 /**********************************************************************
 756  * GetThreadTimes [KERNEL32.???]  Obtains timing information.
 757  *
 758  * NOTES
 759  *    What are the fields where these values are stored?
 760  *
 761  * RETURNS
 762  *    Success: TRUE
 763  *    Failure: FALSE
 764  */
 765 BOOL WINAPI GetThreadTimes(
 766     HANDLE thread,         /* [in]  Specifies the thread of interest */
 767     LPFILETIME creationtime, /* [out] When the thread was created */
 768     LPFILETIME exittime,     /* [out] When the thread was destroyed */
 769     LPFILETIME kerneltime,   /* [out] Time thread spent in kernel mode */
 770     LPFILETIME usertime)     /* [out] Time thread spent in user mode */
 771 {
 772     FIXME("(0x%08x): stub\n",thread);
 773     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 774     return FALSE;
 775 }
 776
 777
 778 /**********************************************************************
 779  * VWin32_BoostThreadGroup [KERNEL.535]
 780  */
 781 VOID WINAPI VWin32_BoostThreadGroup( DWORD threadId, INT boost )
 782 {
 783     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 784 }
 785
 786 /**********************************************************************
 787  * VWin32_BoostThreadStatic [KERNEL.536]
 788  */
 789 VOID WINAPI VWin32_BoostThreadStatic( DWORD threadId, INT boost )
 790 {
 791     FIXME("(0x%08lx,%d): stub\n", threadId, boost);
 792 }
 793
 794
 795 /***********************************************************************
 796  *           GetThreadLocale    (KERNEL32.295)
 797  */
 798 LCID WINAPI GetThreadLocale(void)
 799 {
 800     LCID ret = NtCurrentTeb()->CurrentLocale;
 801     if (!ret) NtCurrentTeb()->CurrentLocale = ret = GetUserDefaultLCID();
 802     return ret;
 803 }
 804
 805
 806 /**********************************************************************
 807  * SetThreadLocale [KERNEL32.671]  Sets the calling threads current locale.
 808  *
 809  * RETURNS
 810  *    Success: TRUE
 811  *    Failure: FALSE
 812  *
 813  * FIXME
 814  *  check if lcid is a valid cp
 815  */
 816 BOOL WINAPI SetThreadLocale(
 817     LCID lcid)     /* [in] Locale identifier */
 818 {
 819     switch (lcid)
 820     {
 821       case LOCALE_SYSTEM_DEFAULT:
 822         lcid = GetSystemDefaultLCID();
 823         break;
 824       case LOCALE_USER_DEFAULT:
 825       case LOCALE_NEUTRAL:
 826         lcid = GetUserDefaultLCID();
 827         break;
 828     }
 829     NtCurrentTeb()->CurrentLocale = lcid;
 830     return TRUE;
 831 }
 832
 833
 834 /***********************************************************************
 835  * GetCurrentThread [KERNEL32.200]  Gets pseudohandle for current thread
 836  *
 837  * RETURNS
 838  *    Pseudohandle for the current thread
 839  */
 840 #undef GetCurrentThread
 841 HANDLE WINAPI GetCurrentThread(void)
 842 {
 843     return 0xfffffffe;
 844 }
 845
 846
 847 #ifdef __i386__
 848
 849 /* void WINAPI SetLastError( DWORD error ); */
 850 __ASM_GLOBAL_FUNC( SetLastError,
 851                    "movl 4(%esp),%eax\n\t"
 852                    ".byte 0x64\n\t"
 853                    "movl %eax,0x60\n\t"
 854                    "ret $4" );
 855
 856 /* DWORD WINAPI GetLastError(void); */
 857 __ASM_GLOBAL_FUNC( GetLastError, ".byte 0x64\n\tmovl 0x60,%eax\n\tret" );
 858
 859 /* DWORD WINAPI GetCurrentProcessId(void) */
 860 __ASM_GLOBAL_FUNC( GetCurrentProcessId, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" );
 861
 862 /* DWORD WINAPI GetCurrentThreadId(void) */
 863 __ASM_GLOBAL_FUNC( GetCurrentThreadId, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" );
 864
 865 #else  /* __i386__ */
 866
 867 /**********************************************************************
 868  * SetLastError [KERNEL.147] [KERNEL32.497]  Sets the last-error code.
 869  */
 870 void WINAPI SetLastError( DWORD error ) /* [in] Per-thread error code */
 871 {
 872     NtCurrentTeb()->last_error = error;
 873 }
 874
 875 /**********************************************************************
 876  * GetLastError [KERNEL.148] [KERNEL32.227]  Returns last-error code.
 877  */
 878 DWORD WINAPI GetLastError(void)
 879 {
 880     return NtCurrentTeb()->last_error;
 881 }
 882
 883 /***********************************************************************
 884  * GetCurrentProcessId [KERNEL32.199]  Returns process identifier.
 885  */
 886 DWORD WINAPI GetCurrentProcessId(void)
 887 {
 888     return (DWORD)NtCurrentTeb()->pid;
 889 }
 890
 891 /***********************************************************************
 892  * GetCurrentThreadId [KERNEL32.201]  Returns thread identifier.
 893  */
 894 DWORD WINAPI GetCurrentThreadId(void)
 895 {
 896     return (DWORD)NtCurrentTeb()->tid;
 897 }
 898
 899 #endif  /* __i386__ */