git.oblomov.eu Git - wine/blob - dlls/ntdll/thread.c

   1 /*
   2  * NT threads support
   3  *
   4  * Copyright 1996, 2003 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <assert.h>
  25 #include <sys/types.h>
  26 #ifdef HAVE_SYS_MMAN_H
  27 #include <sys/mman.h>
  28 #endif
  29 #ifdef HAVE_SYS_TIMES_H
  30 #include <sys/times.h>
  31 #endif
  32
  33 #define NONAMELESSUNION
  34 #include "ntstatus.h"
  35 #define WIN32_NO_STATUS
  36 #include "thread.h"
  37 #include "winternl.h"
  38 #include "wine/library.h"
  39 #include "wine/server.h"
  40 #include "wine/pthread.h"
  41 #include "wine/debug.h"
  42 #include "ntdll_misc.h"
  43 #include "wine/exception.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  46
  47 /* info passed to a starting thread */
  48 struct startup_info
  49 {
  50     struct wine_pthread_thread_info pthread_info;
  51     PRTL_THREAD_START_ROUTINE       entry_point;
  52     void                           *entry_arg;
  53 };
  54
  55 static PEB_LDR_DATA ldr;
  56 static RTL_USER_PROCESS_PARAMETERS params;  /* default parameters if no parent */
  57 static WCHAR current_dir[MAX_NT_PATH_LENGTH];
  58 static RTL_BITMAP tls_bitmap;
  59 static RTL_BITMAP tls_expansion_bitmap;
  60 static LIST_ENTRY tls_links;
  61 static size_t sigstack_total_size;
  62 static ULONG sigstack_zero_bits;
  63
  64 struct wine_pthread_functions pthread_functions = { NULL };
  65
  66 /***********************************************************************
  67  *           init_teb
  68  */
  69 static inline NTSTATUS init_teb( TEB *teb )
  70 {
  71     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
  72     struct ntdll_thread_regs *thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
  73
  74     teb->Tib.ExceptionList = (void *)~0UL;
  75     teb->Tib.StackBase     = (void *)~0UL;
  76     teb->Tib.Self          = &teb->Tib;
  77     teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
  78     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
  79
  80     if (!(thread_regs->fs = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
  81     thread_data->request_fd = -1;
  82     thread_data->reply_fd   = -1;
  83     thread_data->wait_fd[0] = -1;
  84     thread_data->wait_fd[1] = -1;
  85
  86     return STATUS_SUCCESS;
  87 }
  88
  89
  90 /***********************************************************************
  91  *           fix_unicode_string
  92  *
  93  * Make sure the unicode string doesn't point beyond the end pointer
  94  */
  95 static inline void fix_unicode_string( UNICODE_STRING *str, char *end_ptr )
  96 {
  97     if ((char *)str->Buffer >= end_ptr)
  98     {
  99         str->Length = str->MaximumLength = 0;
 100         str->Buffer = NULL;
 101         return;
 102     }
 103     if ((char *)str->Buffer + str->MaximumLength > end_ptr)
 104     {
 105         str->MaximumLength = (end_ptr - (char *)str->Buffer) & ~(sizeof(WCHAR) - 1);
 106     }
 107     if (str->Length >= str->MaximumLength)
 108     {
 109         if (str->MaximumLength >= sizeof(WCHAR))
 110             str->Length = str->MaximumLength - sizeof(WCHAR);
 111         else
 112             str->Length = str->MaximumLength = 0;
 113     }
 114 }
 115
 116
 117 /***********************************************************************
 118  *           init_user_process_params
 119  *
 120  * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
 121  */
 122 static NTSTATUS init_user_process_params( SIZE_T info_size, HANDLE *exe_file )
 123 {
 124     void *ptr;
 125     SIZE_T env_size;
 126     NTSTATUS status;
 127     RTL_USER_PROCESS_PARAMETERS *params = NULL;
 128
 129     status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &info_size,
 130                                       MEM_COMMIT, PAGE_READWRITE );
 131     if (status != STATUS_SUCCESS) return status;
 132
 133     params->AllocationSize = info_size;
 134     NtCurrentTeb()->Peb->ProcessParameters = params;
 135
 136     SERVER_START_REQ( get_startup_info )
 137     {
 138         wine_server_set_reply( req, params, info_size );
 139         if (!(status = wine_server_call( req )))
 140         {
 141             info_size = wine_server_reply_size( reply );
 142             *exe_file = reply->exe_file;
 143             params->hStdInput  = reply->hstdin;
 144             params->hStdOutput = reply->hstdout;
 145             params->hStdError  = reply->hstderr;
 146         }
 147     }
 148     SERVER_END_REQ;
 149     if (status != STATUS_SUCCESS) return status;
 150
 151     if (params->Size > info_size) params->Size = info_size;
 152
 153     /* make sure the strings are valid */
 154     fix_unicode_string( &params->CurrentDirectory.DosPath, (char *)info_size );
 155     fix_unicode_string( &params->DllPath, (char *)info_size );
 156     fix_unicode_string( &params->ImagePathName, (char *)info_size );
 157     fix_unicode_string( &params->CommandLine, (char *)info_size );
 158     fix_unicode_string( &params->WindowTitle, (char *)info_size );
 159     fix_unicode_string( &params->Desktop, (char *)info_size );
 160     fix_unicode_string( &params->ShellInfo, (char *)info_size );
 161     fix_unicode_string( &params->RuntimeInfo, (char *)info_size );
 162
 163     /* environment needs to be a separate memory block */
 164     env_size = info_size - params->Size;
 165     if (!env_size) env_size = 1;
 166     ptr = NULL;
 167     status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &env_size,
 168                                       MEM_COMMIT, PAGE_READWRITE );
 169     if (status != STATUS_SUCCESS) return status;
 170     memcpy( ptr, (char *)params + params->Size, info_size - params->Size );
 171     params->Environment = ptr;
 172
 173     RtlNormalizeProcessParams( params );
 174     return status;
 175 }
 176
 177
 178 /***********************************************************************
 179  *           thread_init
 180  *
 181  * Setup the initial thread.
 182  *
 183  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 184  */
 185 HANDLE thread_init(void)
 186 {
 187     PEB *peb;
 188     TEB *teb;
 189     void *addr;
 190     SIZE_T size, info_size;
 191     HANDLE exe_file = 0;
 192     struct ntdll_thread_data *thread_data;
 193     struct ntdll_thread_regs *thread_regs;
 194     struct wine_pthread_thread_info thread_info;
 195     static struct debug_info debug_info;  /* debug info for initial thread */
 196
 197     virtual_init();
 198
 199     /* reserve space for shared user data */
 200
 201     addr = (void *)0x7ffe0000;
 202     size = 0x10000;
 203     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_RESERVE, PAGE_READONLY );
 204
 205     /* allocate and initialize the PEB */
 206
 207     addr = NULL;
 208     size = sizeof(*peb);
 209     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 1, &size,
 210                              MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 211     peb = addr;
 212
 213     peb->NumberOfProcessors = 1;
 214     peb->ProcessParameters  = &params;
 215     peb->TlsBitmap          = &tls_bitmap;
 216     peb->TlsExpansionBitmap = &tls_expansion_bitmap;
 217     peb->LdrData            = &ldr;
 218     params.CurrentDirectory.DosPath.Buffer = current_dir;
 219     params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
 220     params.wShowWindow = 1; /* SW_SHOWNORMAL */
 221     RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 );
 222     RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits,
 223                          sizeof(peb->TlsExpansionBitmapBits) * 8 );
 224     InitializeListHead( &ldr.InLoadOrderModuleList );
 225     InitializeListHead( &ldr.InMemoryOrderModuleList );
 226     InitializeListHead( &ldr.InInitializationOrderModuleList );
 227     InitializeListHead( &tls_links );
 228
 229     /* allocate and initialize the initial TEB */
 230
 231     sigstack_total_size = get_signal_stack_total_size();
 232     while (1 << sigstack_zero_bits < sigstack_total_size) sigstack_zero_bits++;
 233     assert( 1 << sigstack_zero_bits == sigstack_total_size );  /* must be a power of 2 */
 234     assert( sigstack_total_size >= sizeof(TEB) + sizeof(struct startup_info) );
 235     thread_info.teb_size = sigstack_total_size;
 236
 237     addr = NULL;
 238     size = sigstack_total_size;
 239     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 240                              &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 241     teb = addr;
 242     teb->Peb = peb;
 243     thread_info.teb_size = size;
 244     init_teb( teb );
 245     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 246     thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
 247     thread_data->debug_info = &debug_info;
 248     InsertHeadList( &tls_links, &teb->TlsLinks );
 249
 250     thread_info.stack_base = NULL;
 251     thread_info.stack_size = 0;
 252     thread_info.teb_base   = teb;
 253     thread_info.teb_sel    = thread_regs->fs;
 254     wine_pthread_get_functions( &pthread_functions, sizeof(pthread_functions) );
 255     pthread_functions.init_current_teb( &thread_info );
 256     pthread_functions.init_thread( &thread_info );
 257     virtual_init_threading();
 258
 259     debug_info.str_pos = debug_info.strings;
 260     debug_info.out_pos = debug_info.output;
 261     debug_init();
 262
 263     /* setup the server connection */
 264     server_init_process();
 265     info_size = server_init_thread( thread_info.pid, thread_info.tid, NULL );
 266
 267     /* create the process heap */
 268     if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
 269     {
 270         MESSAGE( "wine: failed to create the process heap\n" );
 271         exit(1);
 272     }
 273
 274     /* allocate user parameters */
 275     if (info_size)
 276     {
 277         init_user_process_params( info_size, &exe_file );
 278     }
 279     else
 280     {
 281         /* This is wine specific: we have no parent (we're started from unix)
 282          * so, create a simple console with bare handles to unix stdio
 283          */
 284         wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE,  OBJ_INHERIT, &params.hStdInput );
 285         wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
 286         wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
 287     }
 288     return exe_file;
 289 }
 290
 291 typedef LONG (WINAPI *PUNHANDLED_EXCEPTION_FILTER)(PEXCEPTION_POINTERS);
 292 static PUNHANDLED_EXCEPTION_FILTER get_unhandled_exception_filter(void)
 293 {
 294     static PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter;
 295     static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
 296     UNICODE_STRING module_name;
 297     ANSI_STRING func_name;
 298     HMODULE kernel32_handle;
 299
 300     if (unhandled_exception_filter) return unhandled_exception_filter;
 301
 302     RtlInitUnicodeString(&module_name, kernel32W);
 303     RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
 304
 305     if (LdrGetDllHandle( 0, 0, &module_name, &kernel32_handle ) == STATUS_SUCCESS)
 306         LdrGetProcedureAddress( kernel32_handle, &func_name, 0,
 307                                 (void **)&unhandled_exception_filter );
 308
 309     return unhandled_exception_filter;
 310 }
 311
 312 /***********************************************************************
 313  *           start_thread
 314  *
 315  * Startup routine for a newly created thread.
 316  */
 317 static void start_thread( struct wine_pthread_thread_info *info )
 318 {
 319     TEB *teb = info->teb_base;
 320     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 321     struct startup_info *startup_info = (struct startup_info *)info;
 322     PRTL_THREAD_START_ROUTINE func = startup_info->entry_point;
 323     void *arg = startup_info->entry_arg;
 324     struct debug_info debug_info;
 325     SIZE_T size, page_size = getpagesize();
 326
 327     debug_info.str_pos = debug_info.strings;
 328     debug_info.out_pos = debug_info.output;
 329     thread_data->debug_info = &debug_info;
 330
 331     pthread_functions.init_current_teb( info );
 332     SIGNAL_Init();
 333     server_init_thread( info->pid, info->tid, func );
 334     pthread_functions.init_thread( info );
 335
 336     /* allocate a memory view for the stack */
 337     size = info->stack_size;
 338     teb->DeallocationStack = info->stack_base;
 339     NtAllocateVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, 0,
 340                              &size, MEM_SYSTEM, PAGE_READWRITE );
 341     /* limit is lower than base since the stack grows down */
 342     teb->Tib.StackBase  = (char *)info->stack_base + info->stack_size;
 343     teb->Tib.StackLimit = (char *)info->stack_base + page_size;
 344
 345     /* setup the guard page */
 346     size = page_size;
 347     NtProtectVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, PAGE_NOACCESS, NULL );
 348
 349     RtlAcquirePebLock();
 350     InsertHeadList( &tls_links, &teb->TlsLinks );
 351     RtlReleasePebLock();
 352
 353     /* NOTE: Windows does not have an exception handler around the call to
 354      * the thread attach. We do for ease of debugging */
 355     if (get_unhandled_exception_filter())
 356     {
 357         __TRY
 358         {
 359             MODULE_DllThreadAttach( NULL );
 360         }
 361         __EXCEPT(get_unhandled_exception_filter())
 362         {
 363             NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
 364         }
 365         __ENDTRY
 366     }
 367     else
 368         MODULE_DllThreadAttach( NULL );
 369
 370     func( arg );
 371 }
 372
 373
 374 /***********************************************************************
 375  *              RtlCreateUserThread   (NTDLL.@)
 376  */
 377 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 378                                      BOOLEAN suspended, PVOID stack_addr,
 379                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 380                                      PRTL_THREAD_START_ROUTINE start, void *param,
 381                                      HANDLE *handle_ptr, CLIENT_ID *id )
 382 {
 383     struct ntdll_thread_data *thread_data;
 384     struct ntdll_thread_regs *thread_regs = NULL;
 385     struct startup_info *info = NULL;
 386     void *addr = NULL;
 387     HANDLE handle = 0;
 388     TEB *teb;
 389     DWORD tid = 0;
 390     int request_pipe[2];
 391     NTSTATUS status;
 392     SIZE_T size, page_size = getpagesize();
 393
 394     if( ! is_current_process( process ) )
 395     {
 396         ERR("Unsupported on other process\n");
 397         return STATUS_ACCESS_DENIED;
 398     }
 399
 400     if (pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 401     fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
 402     wine_server_send_fd( request_pipe[0] );
 403
 404     SERVER_START_REQ( new_thread )
 405     {
 406         req->access     = THREAD_ALL_ACCESS;
 407         req->attributes = 0;  /* FIXME */
 408         req->suspend    = suspended;
 409         req->request_fd = request_pipe[0];
 410         if (!(status = wine_server_call( req )))
 411         {
 412             handle = reply->handle;
 413             tid = reply->tid;
 414         }
 415         close( request_pipe[0] );
 416     }
 417     SERVER_END_REQ;
 418
 419     if (status) goto error;
 420
 421     addr = NULL;
 422     size = sigstack_total_size;
 423     if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 424                                            &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
 425         goto error;
 426     teb = addr;
 427     teb->Peb = NtCurrentTeb()->Peb;
 428     info = (struct startup_info *)(teb + 1);
 429     info->pthread_info.teb_size = size;
 430     if ((status = init_teb( teb ))) goto error;
 431
 432     teb->ClientId.UniqueProcess = (HANDLE)GetCurrentProcessId();
 433     teb->ClientId.UniqueThread  = (HANDLE)tid;
 434
 435     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 436     thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
 437     thread_data->request_fd  = request_pipe[1];
 438
 439     info->pthread_info.teb_base = teb;
 440     info->pthread_info.teb_sel  = thread_regs->fs;
 441
 442     /* inherit debug registers from parent thread */
 443     thread_regs->dr0 = ntdll_get_thread_regs()->dr0;
 444     thread_regs->dr1 = ntdll_get_thread_regs()->dr1;
 445     thread_regs->dr2 = ntdll_get_thread_regs()->dr2;
 446     thread_regs->dr3 = ntdll_get_thread_regs()->dr3;
 447     thread_regs->dr6 = ntdll_get_thread_regs()->dr6;
 448     thread_regs->dr7 = ntdll_get_thread_regs()->dr7;
 449
 450     if (!stack_reserve || !stack_commit)
 451     {
 452         IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress );
 453         if (!stack_reserve) stack_reserve = nt->OptionalHeader.SizeOfStackReserve;
 454         if (!stack_commit) stack_commit = nt->OptionalHeader.SizeOfStackCommit;
 455     }
 456     if (stack_reserve < stack_commit) stack_reserve = stack_commit;
 457     stack_reserve += page_size;  /* for the guard page */
 458     stack_reserve = (stack_reserve + 0xffff) & ~0xffff;  /* round to 64K boundary */
 459     if (stack_reserve < 1024 * 1024) stack_reserve = 1024 * 1024;  /* Xlib needs a large stack */
 460
 461     info->pthread_info.stack_base = NULL;
 462     info->pthread_info.stack_size = stack_reserve;
 463     info->pthread_info.entry      = start_thread;
 464     info->entry_point             = start;
 465     info->entry_arg               = param;
 466
 467     if (pthread_functions.create_thread( &info->pthread_info ) == -1)
 468     {
 469         status = STATUS_NO_MEMORY;
 470         goto error;
 471     }
 472
 473     if (id) id->UniqueThread = (HANDLE)tid;
 474     if (handle_ptr) *handle_ptr = handle;
 475     else NtClose( handle );
 476
 477     return STATUS_SUCCESS;
 478
 479 error:
 480     if (thread_regs) wine_ldt_free_fs( thread_regs->fs );
 481     if (addr)
 482     {
 483         SIZE_T size = 0;
 484         NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
 485     }
 486     if (handle) NtClose( handle );
 487     close( request_pipe[1] );
 488     return status;
 489 }
 490
 491
 492 /***********************************************************************
 493  *           RtlExitUserThread  (NTDLL.@)
 494  */
 495 void WINAPI RtlExitUserThread( ULONG status )
 496 {
 497     LdrShutdownThread();
 498     server_exit_thread( status );
 499 }
 500
 501
 502 /***********************************************************************
 503  *              NtOpenThread   (NTDLL.@)
 504  *              ZwOpenThread   (NTDLL.@)
 505  */
 506 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 507                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 508 {
 509     NTSTATUS ret;
 510
 511     SERVER_START_REQ( open_thread )
 512     {
 513         req->tid        = (thread_id_t)id->UniqueThread;
 514         req->access     = access;
 515         req->attributes = attr ? attr->Attributes : 0;
 516         ret = wine_server_call( req );
 517         *handle = reply->handle;
 518     }
 519     SERVER_END_REQ;
 520     return ret;
 521 }
 522
 523
 524 /******************************************************************************
 525  *              NtSuspendThread   (NTDLL.@)
 526  *              ZwSuspendThread   (NTDLL.@)
 527  */
 528 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 529 {
 530     NTSTATUS ret;
 531
 532     SERVER_START_REQ( suspend_thread )
 533     {
 534         req->handle = handle;
 535         if (!(ret = wine_server_call( req ))) *count = reply->count;
 536     }
 537     SERVER_END_REQ;
 538     return ret;
 539 }
 540
 541
 542 /******************************************************************************
 543  *              NtResumeThread   (NTDLL.@)
 544  *              ZwResumeThread   (NTDLL.@)
 545  */
 546 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 547 {
 548     NTSTATUS ret;
 549
 550     SERVER_START_REQ( resume_thread )
 551     {
 552         req->handle = handle;
 553         if (!(ret = wine_server_call( req ))) *count = reply->count;
 554     }
 555     SERVER_END_REQ;
 556     return ret;
 557 }
 558
 559
 560 /******************************************************************************
 561  *              NtAlertResumeThread   (NTDLL.@)
 562  *              ZwAlertResumeThread   (NTDLL.@)
 563  */
 564 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
 565 {
 566     FIXME( "stub: should alert thread %p\n", handle );
 567     return NtResumeThread( handle, count );
 568 }
 569
 570
 571 /******************************************************************************
 572  *              NtAlertThread   (NTDLL.@)
 573  *              ZwAlertThread   (NTDLL.@)
 574  */
 575 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
 576 {
 577     FIXME( "stub: %p\n", handle );
 578     return STATUS_NOT_IMPLEMENTED;
 579 }
 580
 581
 582 /******************************************************************************
 583  *              NtTerminateThread  (NTDLL.@)
 584  *              ZwTerminateThread  (NTDLL.@)
 585  */
 586 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 587 {
 588     NTSTATUS ret;
 589     BOOL self, last;
 590
 591     SERVER_START_REQ( terminate_thread )
 592     {
 593         req->handle    = handle;
 594         req->exit_code = exit_code;
 595         ret = wine_server_call( req );
 596         self = !ret && reply->self;
 597         last = reply->last;
 598     }
 599     SERVER_END_REQ;
 600
 601     if (self)
 602     {
 603         if (last) exit( exit_code );
 604         else server_abort_thread( exit_code );
 605     }
 606     return ret;
 607 }
 608
 609
 610 /******************************************************************************
 611  *              NtQueueApcThread  (NTDLL.@)
 612  */
 613 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 614                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 615 {
 616     NTSTATUS ret;
 617     SERVER_START_REQ( queue_apc )
 618     {
 619         req->thread = handle;
 620         if (func)
 621         {
 622             req->call.type         = APC_USER;
 623             req->call.user.func    = func;
 624             req->call.user.args[0] = arg1;
 625             req->call.user.args[1] = arg2;
 626             req->call.user.args[2] = arg3;
 627         }
 628         else req->call.type = APC_NONE;  /* wake up only */
 629         ret = wine_server_call( req );
 630     }
 631     SERVER_END_REQ;
 632     return ret;
 633 }
 634
 635
 636 /***********************************************************************
 637  *              NtSetContextThread  (NTDLL.@)
 638  *              ZwSetContextThread  (NTDLL.@)
 639  */
 640 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 641 {
 642     NTSTATUS ret;
 643     DWORD dummy, i;
 644     BOOL self = FALSE;
 645
 646 #ifdef __i386__
 647     /* on i386 debug registers always require a server call */
 648     self = (handle == GetCurrentThread());
 649     if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
 650     {
 651         struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 652         self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 &&
 653                 regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 &&
 654                 regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7);
 655     }
 656 #endif
 657
 658     if (!self)
 659     {
 660         SERVER_START_REQ( set_thread_context )
 661         {
 662             req->handle  = handle;
 663             req->flags   = context->ContextFlags;
 664             req->suspend = 0;
 665             wine_server_add_data( req, context, sizeof(*context) );
 666             ret = wine_server_call( req );
 667             self = reply->self;
 668         }
 669         SERVER_END_REQ;
 670
 671         if (ret == STATUS_PENDING)
 672         {
 673             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 674             {
 675                 for (i = 0; i < 100; i++)
 676                 {
 677                     SERVER_START_REQ( set_thread_context )
 678                     {
 679                         req->handle  = handle;
 680                         req->flags   = context->ContextFlags;
 681                         req->suspend = 0;
 682                         wine_server_add_data( req, context, sizeof(*context) );
 683                         ret = wine_server_call( req );
 684                     }
 685                     SERVER_END_REQ;
 686                     if (ret != STATUS_PENDING) break;
 687                     NtYieldExecution();
 688                 }
 689                 NtResumeThread( handle, &dummy );
 690             }
 691             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 692         }
 693
 694         if (ret) return ret;
 695     }
 696
 697     if (self) set_cpu_context( context );
 698     return STATUS_SUCCESS;
 699 }
 700
 701
 702 /* copy a context structure according to the flags */
 703 static inline void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
 704 {
 705 #ifdef __i386__
 706     flags &= ~CONTEXT_i386;  /* get rid of CPU id */
 707     if (flags & CONTEXT_INTEGER)
 708     {
 709         to->Eax = from->Eax;
 710         to->Ebx = from->Ebx;
 711         to->Ecx = from->Ecx;
 712         to->Edx = from->Edx;
 713         to->Esi = from->Esi;
 714         to->Edi = from->Edi;
 715     }
 716     if (flags & CONTEXT_CONTROL)
 717     {
 718         to->Ebp    = from->Ebp;
 719         to->Esp    = from->Esp;
 720         to->Eip    = from->Eip;
 721         to->SegCs  = from->SegCs;
 722         to->SegSs  = from->SegSs;
 723         to->EFlags = from->EFlags;
 724     }
 725     if (flags & CONTEXT_SEGMENTS)
 726     {
 727         to->SegDs = from->SegDs;
 728         to->SegEs = from->SegEs;
 729         to->SegFs = from->SegFs;
 730         to->SegGs = from->SegGs;
 731     }
 732     if (flags & CONTEXT_DEBUG_REGISTERS)
 733     {
 734         to->Dr0 = from->Dr0;
 735         to->Dr1 = from->Dr1;
 736         to->Dr2 = from->Dr2;
 737         to->Dr3 = from->Dr3;
 738         to->Dr6 = from->Dr6;
 739         to->Dr7 = from->Dr7;
 740     }
 741     if (flags & CONTEXT_FLOATING_POINT)
 742     {
 743         to->FloatSave = from->FloatSave;
 744     }
 745 #elif defined(__x86_64__)
 746     flags &= ~CONTEXT_AMD64;  /* get rid of CPU id */
 747     if (flags & CONTEXT_CONTROL)
 748     {
 749         to->Rbp    = from->Rbp;
 750         to->Rip    = from->Rip;
 751         to->Rsp    = from->Rsp;
 752         to->SegCs  = from->SegCs;
 753         to->SegSs  = from->SegSs;
 754         to->EFlags = from->EFlags;
 755         to->MxCsr  = from->MxCsr;
 756     }
 757     if (flags & CONTEXT_INTEGER)
 758     {
 759         to->Rax = from->Rax;
 760         to->Rcx = from->Rcx;
 761         to->Rdx = from->Rdx;
 762         to->Rbx = from->Rbx;
 763         to->Rsi = from->Rsi;
 764         to->Rdi = from->Rdi;
 765         to->R8  = from->R8;
 766         to->R9  = from->R9;
 767         to->R10 = from->R10;
 768         to->R11 = from->R11;
 769         to->R12 = from->R12;
 770         to->R13 = from->R13;
 771         to->R14 = from->R14;
 772         to->R15 = from->R15;
 773     }
 774     if (flags & CONTEXT_SEGMENTS)
 775     {
 776         to->SegDs = from->SegDs;
 777         to->SegEs = from->SegEs;
 778         to->SegFs = from->SegFs;
 779         to->SegGs = from->SegGs;
 780     }
 781     if (flags & CONTEXT_FLOATING_POINT)
 782     {
 783         to->u.FltSave = from->u.FltSave;
 784     }
 785     if (flags & CONTEXT_DEBUG_REGISTERS)
 786     {
 787         to->Dr0 = from->Dr0;
 788         to->Dr1 = from->Dr1;
 789         to->Dr2 = from->Dr2;
 790         to->Dr3 = from->Dr3;
 791         to->Dr6 = from->Dr6;
 792         to->Dr7 = from->Dr7;
 793     }
 794 #elif defined(__sparc__)
 795     flags &= ~CONTEXT_SPARC;  /* get rid of CPU id */
 796     if (flags & CONTEXT_CONTROL)
 797     {
 798         to->psr = from->psr;
 799         to->pc  = from->pc;
 800         to->npc = from->npc;
 801         to->y   = from->y;
 802         to->wim = from->wim;
 803         to->tbr = from->tbr;
 804     }
 805     if (flags & CONTEXT_INTEGER)
 806     {
 807         to->g0 = from->g0;
 808         to->g1 = from->g1;
 809         to->g2 = from->g2;
 810         to->g3 = from->g3;
 811         to->g4 = from->g4;
 812         to->g5 = from->g5;
 813         to->g6 = from->g6;
 814         to->g7 = from->g7;
 815         to->o0 = from->o0;
 816         to->o1 = from->o1;
 817         to->o2 = from->o2;
 818         to->o3 = from->o3;
 819         to->o4 = from->o4;
 820         to->o5 = from->o5;
 821         to->o6 = from->o6;
 822         to->o7 = from->o7;
 823         to->l0 = from->l0;
 824         to->l1 = from->l1;
 825         to->l2 = from->l2;
 826         to->l3 = from->l3;
 827         to->l4 = from->l4;
 828         to->l5 = from->l5;
 829         to->l6 = from->l6;
 830         to->l7 = from->l7;
 831         to->i0 = from->i0;
 832         to->i1 = from->i1;
 833         to->i2 = from->i2;
 834         to->i3 = from->i3;
 835         to->i4 = from->i4;
 836         to->i5 = from->i5;
 837         to->i6 = from->i6;
 838         to->i7 = from->i7;
 839     }
 840     if (flags & CONTEXT_FLOATING_POINT)
 841     {
 842         /* FIXME */
 843     }
 844 #elif defined(__powerpc__)
 845     /* Has no CPU id */
 846     if (flags & CONTEXT_CONTROL)
 847     {
 848         to->Msr = from->Msr;
 849         to->Ctr = from->Ctr;
 850         to->Iar = from->Iar;
 851     }
 852     if (flags & CONTEXT_INTEGER)
 853     {
 854         to->Gpr0  = from->Gpr0;
 855         to->Gpr1  = from->Gpr1;
 856         to->Gpr2  = from->Gpr2;
 857         to->Gpr3  = from->Gpr3;
 858         to->Gpr4  = from->Gpr4;
 859         to->Gpr5  = from->Gpr5;
 860         to->Gpr6  = from->Gpr6;
 861         to->Gpr7  = from->Gpr7;
 862         to->Gpr8  = from->Gpr8;
 863         to->Gpr9  = from->Gpr9;
 864         to->Gpr10 = from->Gpr10;
 865         to->Gpr11 = from->Gpr11;
 866         to->Gpr12 = from->Gpr12;
 867         to->Gpr13 = from->Gpr13;
 868         to->Gpr14 = from->Gpr14;
 869         to->Gpr15 = from->Gpr15;
 870         to->Gpr16 = from->Gpr16;
 871         to->Gpr17 = from->Gpr17;
 872         to->Gpr18 = from->Gpr18;
 873         to->Gpr19 = from->Gpr19;
 874         to->Gpr20 = from->Gpr20;
 875         to->Gpr21 = from->Gpr21;
 876         to->Gpr22 = from->Gpr22;
 877         to->Gpr23 = from->Gpr23;
 878         to->Gpr24 = from->Gpr24;
 879         to->Gpr25 = from->Gpr25;
 880         to->Gpr26 = from->Gpr26;
 881         to->Gpr27 = from->Gpr27;
 882         to->Gpr28 = from->Gpr28;
 883         to->Gpr29 = from->Gpr29;
 884         to->Gpr30 = from->Gpr30;
 885         to->Gpr31 = from->Gpr31;
 886         to->Xer   = from->Xer;
 887         to->Cr    = from->Cr;
 888     }
 889     if (flags & CONTEXT_FLOATING_POINT)
 890     {
 891         to->Fpr0  = from->Fpr0;
 892         to->Fpr1  = from->Fpr1;
 893         to->Fpr2  = from->Fpr2;
 894         to->Fpr3  = from->Fpr3;
 895         to->Fpr4  = from->Fpr4;
 896         to->Fpr5  = from->Fpr5;
 897         to->Fpr6  = from->Fpr6;
 898         to->Fpr7  = from->Fpr7;
 899         to->Fpr8  = from->Fpr8;
 900         to->Fpr9  = from->Fpr9;
 901         to->Fpr10 = from->Fpr10;
 902         to->Fpr11 = from->Fpr11;
 903         to->Fpr12 = from->Fpr12;
 904         to->Fpr13 = from->Fpr13;
 905         to->Fpr14 = from->Fpr14;
 906         to->Fpr15 = from->Fpr15;
 907         to->Fpr16 = from->Fpr16;
 908         to->Fpr17 = from->Fpr17;
 909         to->Fpr18 = from->Fpr18;
 910         to->Fpr19 = from->Fpr19;
 911         to->Fpr20 = from->Fpr20;
 912         to->Fpr21 = from->Fpr21;
 913         to->Fpr22 = from->Fpr22;
 914         to->Fpr23 = from->Fpr23;
 915         to->Fpr24 = from->Fpr24;
 916         to->Fpr25 = from->Fpr25;
 917         to->Fpr26 = from->Fpr26;
 918         to->Fpr27 = from->Fpr27;
 919         to->Fpr28 = from->Fpr28;
 920         to->Fpr29 = from->Fpr29;
 921         to->Fpr30 = from->Fpr30;
 922         to->Fpr31 = from->Fpr31;
 923         to->Fpscr = from->Fpscr;
 924     }
 925 #else
 926 #error You must implement context copying for your CPU
 927 #endif
 928 }
 929
 930
 931 /***********************************************************************
 932  *              NtGetContextThread  (NTDLL.@)
 933  *              ZwGetContextThread  (NTDLL.@)
 934  */
 935 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
 936 {
 937     NTSTATUS ret;
 938     CONTEXT ctx;
 939     DWORD dummy, i;
 940     DWORD needed_flags = context->ContextFlags;
 941     BOOL self = (handle == GetCurrentThread());
 942
 943 #ifdef __i386__
 944     /* on i386 debug registers always require a server call */
 945     if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
 946 #endif
 947
 948     if (!self)
 949     {
 950         SERVER_START_REQ( get_thread_context )
 951         {
 952             req->handle  = handle;
 953             req->flags   = context->ContextFlags;
 954             req->suspend = 0;
 955             wine_server_set_reply( req, &ctx, sizeof(ctx) );
 956             ret = wine_server_call( req );
 957             self = reply->self;
 958         }
 959         SERVER_END_REQ;
 960
 961         if (ret == STATUS_PENDING)
 962         {
 963             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 964             {
 965                 for (i = 0; i < 100; i++)
 966                 {
 967                     SERVER_START_REQ( get_thread_context )
 968                     {
 969                         req->handle  = handle;
 970                         req->flags   = context->ContextFlags;
 971                         req->suspend = 0;
 972                         wine_server_set_reply( req, &ctx, sizeof(ctx) );
 973                         ret = wine_server_call( req );
 974                     }
 975                     SERVER_END_REQ;
 976                     if (ret != STATUS_PENDING) break;
 977                     NtYieldExecution();
 978                 }
 979                 NtResumeThread( handle, &dummy );
 980             }
 981             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 982         }
 983         if (ret) return ret;
 984         copy_context( context, &ctx, context->ContextFlags & ctx.ContextFlags );
 985         needed_flags &= ~ctx.ContextFlags;
 986     }
 987
 988     if (self)
 989     {
 990         if (needed_flags)
 991         {
 992             get_cpu_context( &ctx );
 993             copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
 994         }
 995 #ifdef __i386__
 996         /* update the cached version of the debug registers */
 997         if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
 998         {
 999             struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
1000             regs->dr0 = context->Dr0;
1001             regs->dr1 = context->Dr1;
1002             regs->dr2 = context->Dr2;
1003             regs->dr3 = context->Dr3;
1004             regs->dr6 = context->Dr6;
1005             regs->dr7 = context->Dr7;
1006         }
1007 #endif
1008     }
1009     return STATUS_SUCCESS;
1010 }
1011
1012
1013 /******************************************************************************
1014  *              NtQueryInformationThread  (NTDLL.@)
1015  *              ZwQueryInformationThread  (NTDLL.@)
1016  */
1017 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
1018                                           void *data, ULONG length, ULONG *ret_len )
1019 {
1020     NTSTATUS status;
1021
1022     switch(class)
1023     {
1024     case ThreadBasicInformation:
1025         {
1026             THREAD_BASIC_INFORMATION info;
1027
1028             SERVER_START_REQ( get_thread_info )
1029             {
1030                 req->handle = handle;
1031                 req->tid_in = 0;
1032                 if (!(status = wine_server_call( req )))
1033                 {
1034                     info.ExitStatus             = reply->exit_code;
1035                     info.TebBaseAddress         = reply->teb;
1036                     info.ClientId.UniqueProcess = (HANDLE)reply->pid;
1037                     info.ClientId.UniqueThread  = (HANDLE)reply->tid;
1038                     info.AffinityMask           = reply->affinity;
1039                     info.Priority               = reply->priority;
1040                     info.BasePriority           = reply->priority;  /* FIXME */
1041                 }
1042             }
1043             SERVER_END_REQ;
1044             if (status == STATUS_SUCCESS)
1045             {
1046                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
1047                 if (ret_len) *ret_len = min( length, sizeof(info) );
1048             }
1049         }
1050         return status;
1051     case ThreadTimes:
1052         {
1053             KERNEL_USER_TIMES   kusrt;
1054             /* We need to do a server call to get the creation time or exit time */
1055             /* This works on any thread */
1056             SERVER_START_REQ( get_thread_info )
1057             {
1058                 req->handle = handle;
1059                 req->tid_in = 0;
1060                 status = wine_server_call( req );
1061                 if (status == STATUS_SUCCESS)
1062                 {
1063                     NTDLL_from_server_abstime( &kusrt.CreateTime, &reply->creation_time );
1064                     NTDLL_from_server_abstime( &kusrt.ExitTime, &reply->exit_time );
1065                 }
1066             }
1067             SERVER_END_REQ;
1068             if (status == STATUS_SUCCESS)
1069             {
1070                 /* We call times(2) for kernel time or user time */
1071                 /* We can only (portably) do this for the current thread */
1072                 if (handle == GetCurrentThread())
1073                 {
1074                     struct tms time_buf;
1075                     long clocks_per_sec = sysconf(_SC_CLK_TCK);
1076
1077                     times(&time_buf);
1078                     kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
1079                     kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
1080                 }
1081                 else
1082                 {
1083                     kusrt.KernelTime.QuadPart = 0;
1084                     kusrt.UserTime.QuadPart = 0;
1085                     FIXME("Cannot get kerneltime or usertime of other threads\n");
1086                 }
1087                 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
1088                 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
1089             }
1090         }
1091         return status;
1092     case ThreadDescriptorTableEntry:
1093         {
1094 #ifdef __i386__
1095             THREAD_DESCRIPTOR_INFORMATION*      tdi = data;
1096             if (length < sizeof(*tdi))
1097                 status = STATUS_INFO_LENGTH_MISMATCH;
1098             else if (!(tdi->Selector & 4))  /* GDT selector */
1099             {
1100                 unsigned sel = tdi->Selector & ~3;  /* ignore RPL */
1101                 status = STATUS_SUCCESS;
1102                 if (!sel)  /* null selector */
1103                     memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
1104                 else
1105                 {
1106                     tdi->Entry.BaseLow                   = 0;
1107                     tdi->Entry.HighWord.Bits.BaseMid     = 0;
1108                     tdi->Entry.HighWord.Bits.BaseHi      = 0;
1109                     tdi->Entry.LimitLow                  = 0xffff;
1110                     tdi->Entry.HighWord.Bits.LimitHi     = 0xf;
1111                     tdi->Entry.HighWord.Bits.Dpl         = 3;
1112                     tdi->Entry.HighWord.Bits.Sys         = 0;
1113                     tdi->Entry.HighWord.Bits.Pres        = 1;
1114                     tdi->Entry.HighWord.Bits.Granularity = 1;
1115                     tdi->Entry.HighWord.Bits.Default_Big = 1;
1116                     tdi->Entry.HighWord.Bits.Type        = 0x12;
1117                     /* it has to be one of the system GDT selectors */
1118                     if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
1119                     {
1120                         if (sel == (wine_get_cs() & ~3))
1121                             tdi->Entry.HighWord.Bits.Type |= 8;  /* code segment */
1122                         else status = STATUS_ACCESS_DENIED;
1123                     }
1124                 }
1125             }
1126             else
1127             {
1128                 SERVER_START_REQ( get_selector_entry )
1129                 {
1130                     req->handle = handle;
1131                     req->entry = tdi->Selector >> 3;
1132                     status = wine_server_call( req );
1133                     if (!status)
1134                     {
1135                         if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1136                             status = STATUS_ACCESS_VIOLATION;
1137                         else
1138                         {
1139                             wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1140                             wine_ldt_set_limit( &tdi->Entry, reply->limit );
1141                             wine_ldt_set_flags( &tdi->Entry, reply->flags );
1142                         }
1143                     }
1144                 }
1145                 SERVER_END_REQ;
1146             }
1147             if (status == STATUS_SUCCESS && ret_len)
1148                 /* yes, that's a bit strange, but it's the way it is */
1149                 *ret_len = sizeof(LDT_ENTRY);
1150 #else
1151             status = STATUS_NOT_IMPLEMENTED;
1152 #endif
1153             return status;
1154         }
1155     case ThreadAmILastThread:
1156         {
1157             SERVER_START_REQ(get_thread_info)
1158             {
1159                 req->handle = handle;
1160                 req->tid_in = 0;
1161                 status = wine_server_call( req );
1162                 if (status == STATUS_SUCCESS)
1163                 {
1164                     BOOLEAN last = reply->last;
1165                     if (data) memcpy( data, &last, min( length, sizeof(last) ));
1166                     if (ret_len) *ret_len = min( length, sizeof(last) );
1167                 }
1168             }
1169             SERVER_END_REQ;
1170             return status;
1171         }
1172     case ThreadPriority:
1173     case ThreadBasePriority:
1174     case ThreadAffinityMask:
1175     case ThreadImpersonationToken:
1176     case ThreadEnableAlignmentFaultFixup:
1177     case ThreadEventPair_Reusable:
1178     case ThreadQuerySetWin32StartAddress:
1179     case ThreadZeroTlsCell:
1180     case ThreadPerformanceCount:
1181     case ThreadIdealProcessor:
1182     case ThreadPriorityBoost:
1183     case ThreadSetTlsArrayAddress:
1184     case ThreadIsIoPending:
1185     default:
1186         FIXME( "info class %d not supported yet\n", class );
1187         return STATUS_NOT_IMPLEMENTED;
1188     }
1189 }
1190
1191
1192 /******************************************************************************
1193  *              NtSetInformationThread  (NTDLL.@)
1194  *              ZwSetInformationThread  (NTDLL.@)
1195  */
1196 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1197                                         LPCVOID data, ULONG length )
1198 {
1199     NTSTATUS status;
1200     switch(class)
1201     {
1202     case ThreadZeroTlsCell:
1203         if (handle == GetCurrentThread())
1204         {
1205             LIST_ENTRY *entry;
1206             DWORD index;
1207
1208             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1209             index = *(const DWORD *)data;
1210             if (index < TLS_MINIMUM_AVAILABLE)
1211             {
1212                 RtlAcquirePebLock();
1213                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1214                 {
1215                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1216                     teb->TlsSlots[index] = 0;
1217                 }
1218                 RtlReleasePebLock();
1219             }
1220             else
1221             {
1222                 index -= TLS_MINIMUM_AVAILABLE;
1223                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1224                     return STATUS_INVALID_PARAMETER;
1225                 RtlAcquirePebLock();
1226                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1227                 {
1228                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1229                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1230                 }
1231                 RtlReleasePebLock();
1232             }
1233             return STATUS_SUCCESS;
1234         }
1235         FIXME( "ZeroTlsCell not supported on other threads\n" );
1236         return STATUS_NOT_IMPLEMENTED;
1237
1238     case ThreadImpersonationToken:
1239         {
1240             const HANDLE *phToken = data;
1241             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1242             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1243             SERVER_START_REQ( set_thread_info )
1244             {
1245                 req->handle   = handle;
1246                 req->token    = *phToken;
1247                 req->mask     = SET_THREAD_INFO_TOKEN;
1248                 status = wine_server_call( req );
1249             }
1250             SERVER_END_REQ;
1251         }
1252         return status;
1253     case ThreadBasePriority:
1254         {
1255             const DWORD *pprio = data;
1256             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1257             SERVER_START_REQ( set_thread_info )
1258             {
1259                 req->handle   = handle;
1260                 req->priority = *pprio;
1261                 req->mask     = SET_THREAD_INFO_PRIORITY;
1262                 status = wine_server_call( req );
1263             }
1264             SERVER_END_REQ;
1265         }
1266         return status;
1267     case ThreadAffinityMask:
1268         {
1269             const DWORD *paff = data;
1270             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1271             SERVER_START_REQ( set_thread_info )
1272             {
1273                 req->handle   = handle;
1274                 req->affinity = *paff;
1275                 req->mask     = SET_THREAD_INFO_AFFINITY;
1276                 status = wine_server_call( req );
1277             }
1278             SERVER_END_REQ;
1279         }
1280         return status;
1281     case ThreadBasicInformation:
1282     case ThreadTimes:
1283     case ThreadPriority:
1284     case ThreadDescriptorTableEntry:
1285     case ThreadEnableAlignmentFaultFixup:
1286     case ThreadEventPair_Reusable:
1287     case ThreadQuerySetWin32StartAddress:
1288     case ThreadPerformanceCount:
1289     case ThreadAmILastThread:
1290     case ThreadIdealProcessor:
1291     case ThreadPriorityBoost:
1292     case ThreadSetTlsArrayAddress:
1293     case ThreadIsIoPending:
1294     default:
1295         FIXME( "info class %d not supported yet\n", class );
1296         return STATUS_NOT_IMPLEMENTED;
1297     }
1298 }
1299
1300
1301 /**********************************************************************
1302  *           NtCurrentTeb   (NTDLL.@)
1303  */
1304 #if defined(__i386__) && defined(__GNUC__)
1305
1306 __ASM_GLOBAL_FUNC( NtCurrentTeb, ".byte 0x64\n\tmovl 0x18,%eax\n\tret" )
1307
1308 #elif defined(__i386__) && defined(_MSC_VER)
1309
1310 /* Nothing needs to be done. MS C "magically" exports the inline version from winnt.h */
1311
1312 #else
1313
1314 /**********************************************************************/
1315
1316 TEB * WINAPI NtCurrentTeb(void)
1317 {
1318     return pthread_functions.get_current_teb();
1319 }
1320
1321 #endif  /* __i386__ */