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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <sys/types.h>
  25 #ifdef HAVE_SYS_MMAN_H
  26 #include <sys/mman.h>
  27 #endif
  28
  29 #include "ntstatus.h"
  30 #include "thread.h"
  31 #include "winternl.h"
  32 #include "wine/library.h"
  33 #include "wine/server.h"
  34 #include "wine/pthread.h"
  35 #include "wine/debug.h"
  36 #include "ntdll_misc.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  39
  40 /* info passed to a starting thread */
  41 struct startup_info
  42 {
  43     struct wine_pthread_thread_info pthread_info;
  44     PRTL_THREAD_START_ROUTINE       entry_point;
  45     void                           *entry_arg;
  46 };
  47
  48 static PEB peb;
  49 static PEB_LDR_DATA ldr;
  50 static RTL_USER_PROCESS_PARAMETERS params;  /* default parameters if no parent */
  51 static WCHAR current_dir[MAX_NT_PATH_LENGTH];
  52 static RTL_BITMAP tls_bitmap;
  53 static RTL_BITMAP tls_expansion_bitmap;
  54 static LIST_ENTRY tls_links;
  55
  56 struct wine_pthread_functions pthread_functions = { NULL };
  57
  58 /***********************************************************************
  59  *           init_teb
  60  */
  61 static inline NTSTATUS init_teb( TEB *teb )
  62 {
  63     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
  64
  65     teb->Tib.ExceptionList = (void *)~0UL;
  66     teb->Tib.StackBase     = (void *)~0UL;
  67     teb->Tib.Self          = &teb->Tib;
  68     teb->Peb               = &peb;
  69     teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
  70     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
  71
  72     if (!(thread_data->teb_sel = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
  73     thread_data->request_fd = -1;
  74     thread_data->reply_fd   = -1;
  75     thread_data->wait_fd[0] = -1;
  76     thread_data->wait_fd[1] = -1;
  77
  78     return STATUS_SUCCESS;
  79 }
  80
  81
  82 /***********************************************************************
  83  *           free_teb
  84  */
  85 static inline void free_teb( TEB *teb )
  86 {
  87     ULONG size = 0;
  88     void *addr = teb;
  89     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
  90
  91     NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
  92     wine_ldt_free_fs( thread_data->teb_sel );
  93     munmap( teb, SIGNAL_STACK_SIZE + sizeof(TEB) );
  94 }
  95
  96
  97 /***********************************************************************
  98  *           thread_init
  99  *
 100  * Setup the initial thread.
 101  *
 102  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 103  */
 104 void thread_init(void)
 105 {
 106     TEB *teb;
 107     void *addr;
 108     ULONG info_size;
 109     struct ntdll_thread_data *thread_data;
 110     struct wine_pthread_thread_info thread_info;
 111     static struct debug_info debug_info;  /* debug info for initial thread */
 112
 113     peb.NumberOfProcessors = 1;
 114     peb.ProcessParameters  = &params;
 115     peb.TlsBitmap          = &tls_bitmap;
 116     peb.TlsExpansionBitmap = &tls_expansion_bitmap;
 117     peb.LdrData            = &ldr;
 118     params.CurrentDirectory.DosPath.Buffer = current_dir;
 119     params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
 120     RtlInitializeBitMap( &tls_bitmap, peb.TlsBitmapBits, sizeof(peb.TlsBitmapBits) * 8 );
 121     RtlInitializeBitMap( &tls_expansion_bitmap, peb.TlsExpansionBitmapBits,
 122                          sizeof(peb.TlsExpansionBitmapBits) * 8 );
 123     InitializeListHead( &ldr.InLoadOrderModuleList );
 124     InitializeListHead( &ldr.InMemoryOrderModuleList );
 125     InitializeListHead( &ldr.InInitializationOrderModuleList );
 126     InitializeListHead( &tls_links );
 127
 128     thread_info.teb_size = SIGNAL_STACK_SIZE + sizeof(TEB);
 129     VIRTUAL_alloc_teb( &addr, thread_info.teb_size, TRUE );
 130     teb = addr;
 131     init_teb( teb );
 132     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 133     thread_data->debug_info = &debug_info;
 134     InsertHeadList( &tls_links, &teb->TlsLinks );
 135
 136     thread_info.stack_base = NULL;
 137     thread_info.stack_size = 0;
 138     thread_info.teb_base   = teb;
 139     thread_info.teb_sel    = thread_data->teb_sel;
 140     wine_pthread_get_functions( &pthread_functions, sizeof(pthread_functions) );
 141     pthread_functions.init_current_teb( &thread_info );
 142     pthread_functions.init_thread( &thread_info );
 143
 144     debug_info.str_pos = debug_info.strings;
 145     debug_info.out_pos = debug_info.output;
 146     debug_init();
 147
 148     /* setup the server connection */
 149     server_init_process();
 150     info_size = server_init_thread( thread_info.pid, thread_info.tid, NULL );
 151
 152     /* create the process heap */
 153     if (!(peb.ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
 154     {
 155         MESSAGE( "wine: failed to create the process heap\n" );
 156         exit(1);
 157     }
 158
 159     /* allocate user parameters */
 160     if (info_size)
 161     {
 162         RTL_USER_PROCESS_PARAMETERS *params = NULL;
 163
 164         if (NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &info_size,
 165                                      MEM_COMMIT, PAGE_READWRITE ) == STATUS_SUCCESS)
 166         {
 167             params->AllocationSize = info_size;
 168             NtCurrentTeb()->Peb->ProcessParameters = params;
 169         }
 170     }
 171     else
 172     {
 173         /* This is wine specific: we have no parent (we're started from unix)
 174          * so, create a simple console with bare handles to unix stdio
 175          */
 176         wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE,  TRUE, &params.hStdInput );
 177         wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, TRUE, &params.hStdOutput );
 178         wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, TRUE, &params.hStdError );
 179     }
 180 }
 181
 182
 183 /***********************************************************************
 184  *           start_thread
 185  *
 186  * Startup routine for a newly created thread.
 187  */
 188 static void start_thread( struct wine_pthread_thread_info *info )
 189 {
 190     TEB *teb = info->teb_base;
 191     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 192     struct startup_info *startup_info = (struct startup_info *)info;
 193     PRTL_THREAD_START_ROUTINE func = startup_info->entry_point;
 194     void *arg = startup_info->entry_arg;
 195     struct debug_info debug_info;
 196     ULONG size;
 197
 198     debug_info.str_pos = debug_info.strings;
 199     debug_info.out_pos = debug_info.output;
 200     thread_data->debug_info = &debug_info;
 201
 202     pthread_functions.init_current_teb( info );
 203     SIGNAL_Init();
 204     server_init_thread( info->pid, info->tid, func );
 205     pthread_functions.init_thread( info );
 206
 207     /* allocate a memory view for the stack */
 208     size = info->stack_size;
 209     teb->DeallocationStack = info->stack_base;
 210     NtAllocateVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, 0,
 211                              &size, MEM_SYSTEM, PAGE_READWRITE );
 212     /* limit is lower than base since the stack grows down */
 213     teb->Tib.StackBase  = (char *)info->stack_base + info->stack_size;
 214     teb->Tib.StackLimit = info->stack_base;
 215
 216     /* setup the guard page */
 217     size = 1;
 218     NtProtectVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size,
 219                             PAGE_READWRITE | PAGE_GUARD, NULL );
 220     RtlFreeHeap( GetProcessHeap(), 0, info );
 221
 222     RtlAcquirePebLock();
 223     InsertHeadList( &tls_links, &teb->TlsLinks );
 224     RtlReleasePebLock();
 225
 226     func( arg );
 227 }
 228
 229
 230 /***********************************************************************
 231  *              RtlCreateUserThread   (NTDLL.@)
 232  */
 233 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 234                                      BOOLEAN suspended, PVOID stack_addr,
 235                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 236                                      PRTL_THREAD_START_ROUTINE start, void *param,
 237                                      HANDLE *handle_ptr, CLIENT_ID *id )
 238 {
 239     struct ntdll_thread_data *thread_data = NULL;
 240     struct startup_info *info = NULL;
 241     void *addr;
 242     HANDLE handle = 0;
 243     TEB *teb;
 244     DWORD tid = 0;
 245     int request_pipe[2];
 246     NTSTATUS status;
 247
 248     if( ! is_current_process( process ) )
 249     {
 250         ERR("Unsupported on other process\n");
 251         return STATUS_ACCESS_DENIED;
 252     }
 253
 254     if (pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 255     fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
 256     wine_server_send_fd( request_pipe[0] );
 257
 258     SERVER_START_REQ( new_thread )
 259     {
 260         req->suspend    = suspended;
 261         req->inherit    = 0;  /* FIXME */
 262         req->request_fd = request_pipe[0];
 263         if (!(status = wine_server_call( req )))
 264         {
 265             handle = reply->handle;
 266             tid = reply->tid;
 267         }
 268         close( request_pipe[0] );
 269     }
 270     SERVER_END_REQ;
 271
 272     if (status) goto error;
 273
 274     if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*info) )))
 275     {
 276         status = STATUS_NO_MEMORY;
 277         goto error;
 278     }
 279
 280     info->pthread_info.teb_size = SIGNAL_STACK_SIZE + sizeof(TEB);
 281     if ((status = VIRTUAL_alloc_teb( &addr, info->pthread_info.teb_size, FALSE ))) goto error;
 282     teb = addr;
 283     if ((status = init_teb( teb ))) goto error;
 284
 285     teb->ClientId.UniqueProcess = (HANDLE)GetCurrentProcessId();
 286     teb->ClientId.UniqueThread  = (HANDLE)tid;
 287
 288     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 289     thread_data->request_fd  = request_pipe[1];
 290
 291     info->pthread_info.teb_base = teb;
 292     info->pthread_info.teb_sel  = thread_data->teb_sel;
 293
 294     if (!stack_reserve || !stack_commit)
 295     {
 296         IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress );
 297         if (!stack_reserve) stack_reserve = nt->OptionalHeader.SizeOfStackReserve;
 298         if (!stack_commit) stack_commit = nt->OptionalHeader.SizeOfStackCommit;
 299     }
 300     if (stack_reserve < stack_commit) stack_reserve = stack_commit;
 301     stack_reserve = (stack_reserve + 0xffff) & ~0xffff;  /* round to 64K boundary */
 302     if (stack_reserve < 1024 * 1024) stack_reserve = 1024 * 1024;  /* Xlib needs a large stack */
 303
 304     info->pthread_info.stack_base = NULL;
 305     info->pthread_info.stack_size = stack_reserve;
 306     info->pthread_info.entry      = start_thread;
 307     info->entry_point             = start;
 308     info->entry_arg               = param;
 309
 310     if (pthread_functions.create_thread( &info->pthread_info ) == -1)
 311     {
 312         status = STATUS_NO_MEMORY;
 313         goto error;
 314     }
 315
 316     if (id) id->UniqueThread = (HANDLE)tid;
 317     if (handle_ptr) *handle_ptr = handle;
 318     else NtClose( handle );
 319
 320     return STATUS_SUCCESS;
 321
 322 error:
 323     if (thread_data) wine_ldt_free_fs( thread_data->teb_sel );
 324     if (addr)
 325     {
 326         ULONG size = 0;
 327         NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
 328     }
 329     if (info) RtlFreeHeap( GetProcessHeap(), 0, info );
 330     if (handle) NtClose( handle );
 331     close( request_pipe[1] );
 332     return status;
 333 }
 334
 335
 336 /***********************************************************************
 337  *           RtlExitUserThread  (NTDLL.@)
 338  */
 339 void WINAPI RtlExitUserThread( ULONG status )
 340 {
 341     LdrShutdownThread();
 342     server_exit_thread( status );
 343 }
 344
 345
 346 /***********************************************************************
 347  *              NtOpenThread   (NTDLL.@)
 348  *              ZwOpenThread   (NTDLL.@)
 349  */
 350 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 351                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 352 {
 353     NTSTATUS ret;
 354
 355     SERVER_START_REQ( open_thread )
 356     {
 357         req->tid     = (thread_id_t)id->UniqueThread;
 358         req->access  = access;
 359         req->inherit = attr && (attr->Attributes & OBJ_INHERIT);
 360         ret = wine_server_call( req );
 361         *handle = reply->handle;
 362     }
 363     SERVER_END_REQ;
 364     return ret;
 365 }
 366
 367
 368 /******************************************************************************
 369  *              NtSuspendThread   (NTDLL.@)
 370  *              ZwSuspendThread   (NTDLL.@)
 371  */
 372 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 373 {
 374     NTSTATUS ret;
 375
 376     SERVER_START_REQ( suspend_thread )
 377     {
 378         req->handle = handle;
 379         if (!(ret = wine_server_call( req ))) *count = reply->count;
 380     }
 381     SERVER_END_REQ;
 382     return ret;
 383 }
 384
 385
 386 /******************************************************************************
 387  *              NtResumeThread   (NTDLL.@)
 388  *              ZwResumeThread   (NTDLL.@)
 389  */
 390 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 391 {
 392     NTSTATUS ret;
 393
 394     SERVER_START_REQ( resume_thread )
 395     {
 396         req->handle = handle;
 397         if (!(ret = wine_server_call( req ))) *count = reply->count;
 398     }
 399     SERVER_END_REQ;
 400     return ret;
 401 }
 402
 403
 404 /******************************************************************************
 405  *              NtAlertResumeThread   (NTDLL.@)
 406  *              ZwAlertResumeThread   (NTDLL.@)
 407  */
 408 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
 409 {
 410     FIXME( "stub: should alert thread %p\n", handle );
 411     return NtResumeThread( handle, count );
 412 }
 413
 414
 415 /******************************************************************************
 416  *              NtAlertThread   (NTDLL.@)
 417  *              ZwAlertThread   (NTDLL.@)
 418  */
 419 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
 420 {
 421     FIXME( "stub: %p\n", handle );
 422     return STATUS_NOT_IMPLEMENTED;
 423 }
 424
 425
 426 /******************************************************************************
 427  *              NtTerminateThread  (NTDLL.@)
 428  *              ZwTerminateThread  (NTDLL.@)
 429  */
 430 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 431 {
 432     NTSTATUS ret;
 433     BOOL self, last;
 434
 435     SERVER_START_REQ( terminate_thread )
 436     {
 437         req->handle    = handle;
 438         req->exit_code = exit_code;
 439         ret = wine_server_call( req );
 440         self = !ret && reply->self;
 441         last = reply->last;
 442     }
 443     SERVER_END_REQ;
 444
 445     if (self)
 446     {
 447         if (last) exit( exit_code );
 448         else server_abort_thread( exit_code );
 449     }
 450     return ret;
 451 }
 452
 453
 454 /******************************************************************************
 455  *              NtQueueApcThread  (NTDLL.@)
 456  */
 457 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 458                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 459 {
 460     NTSTATUS ret;
 461     SERVER_START_REQ( queue_apc )
 462     {
 463         req->handle = handle;
 464         req->user   = 1;
 465         req->func   = func;
 466         req->arg1   = (void *)arg1;
 467         req->arg2   = (void *)arg2;
 468         req->arg3   = (void *)arg3;
 469         ret = wine_server_call( req );
 470     }
 471     SERVER_END_REQ;
 472     return ret;
 473 }
 474
 475
 476 /***********************************************************************
 477  *              NtSetContextThread  (NTDLL.@)
 478  *              ZwSetContextThread  (NTDLL.@)
 479  */
 480 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 481 {
 482     NTSTATUS ret;
 483
 484     SERVER_START_REQ( set_thread_context )
 485     {
 486         req->handle = handle;
 487         req->flags  = context->ContextFlags;
 488         wine_server_add_data( req, context, sizeof(*context) );
 489         ret = wine_server_call( req );
 490     }
 491     SERVER_END_REQ;
 492     return ret;
 493 }
 494
 495
 496 /***********************************************************************
 497  *              NtGetContextThread  (NTDLL.@)
 498  *              ZwGetContextThread  (NTDLL.@)
 499  */
 500 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
 501 {
 502     NTSTATUS ret;
 503
 504     SERVER_START_REQ( get_thread_context )
 505     {
 506         req->handle = handle;
 507         req->flags = context->ContextFlags;
 508         wine_server_add_data( req, context, sizeof(*context) );
 509         wine_server_set_reply( req, context, sizeof(*context) );
 510         ret = wine_server_call( req );
 511     }
 512     SERVER_END_REQ;
 513     return ret;
 514 }
 515
 516
 517 /******************************************************************************
 518  *              NtQueryInformationThread  (NTDLL.@)
 519  *              ZwQueryInformationThread  (NTDLL.@)
 520  */
 521 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
 522                                           void *data, ULONG length, ULONG *ret_len )
 523 {
 524     NTSTATUS status;
 525
 526     switch(class)
 527     {
 528     case ThreadBasicInformation:
 529         {
 530             THREAD_BASIC_INFORMATION info;
 531
 532             SERVER_START_REQ( get_thread_info )
 533             {
 534                 req->handle = handle;
 535                 req->tid_in = 0;
 536                 if (!(status = wine_server_call( req )))
 537                 {
 538                     info.ExitStatus             = reply->exit_code;
 539                     info.TebBaseAddress         = reply->teb;
 540                     info.ClientId.UniqueProcess = (HANDLE)reply->pid;
 541                     info.ClientId.UniqueThread  = (HANDLE)reply->tid;
 542                     info.AffinityMask           = reply->affinity;
 543                     info.Priority               = reply->priority;
 544                     info.BasePriority           = reply->priority;  /* FIXME */
 545                 }
 546             }
 547             SERVER_END_REQ;
 548             if (status == STATUS_SUCCESS)
 549             {
 550                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
 551                 if (ret_len) *ret_len = min( length, sizeof(info) );
 552             }
 553         }
 554         return status;
 555     case ThreadTimes:
 556     case ThreadPriority:
 557     case ThreadBasePriority:
 558     case ThreadAffinityMask:
 559     case ThreadImpersonationToken:
 560     case ThreadDescriptorTableEntry:
 561     case ThreadEnableAlignmentFaultFixup:
 562     case ThreadEventPair_Reusable:
 563     case ThreadQuerySetWin32StartAddress:
 564     case ThreadZeroTlsCell:
 565     case ThreadPerformanceCount:
 566     case ThreadAmILastThread:
 567     case ThreadIdealProcessor:
 568     case ThreadPriorityBoost:
 569     case ThreadSetTlsArrayAddress:
 570     case ThreadIsIoPending:
 571     default:
 572         FIXME( "info class %d not supported yet\n", class );
 573         return STATUS_NOT_IMPLEMENTED;
 574     }
 575 }
 576
 577
 578 /******************************************************************************
 579  *              NtSetInformationThread  (NTDLL.@)
 580  *              ZwSetInformationThread  (NTDLL.@)
 581  */
 582 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
 583                                         LPCVOID data, ULONG length )
 584 {
 585     NTSTATUS status;
 586     switch(class)
 587     {
 588     case ThreadZeroTlsCell:
 589         if (handle == GetCurrentThread())
 590         {
 591             LIST_ENTRY *entry;
 592             DWORD index;
 593
 594             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
 595             index = *(const DWORD *)data;
 596             if (index < TLS_MINIMUM_AVAILABLE)
 597             {
 598                 RtlAcquirePebLock();
 599                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
 600                 {
 601                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
 602                     teb->TlsSlots[index] = 0;
 603                 }
 604                 RtlReleasePebLock();
 605             }
 606             else
 607             {
 608                 index -= TLS_MINIMUM_AVAILABLE;
 609                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
 610                     return STATUS_INVALID_PARAMETER;
 611                 RtlAcquirePebLock();
 612                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
 613                 {
 614                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
 615                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
 616                 }
 617                 RtlReleasePebLock();
 618             }
 619             return STATUS_SUCCESS;
 620         }
 621         FIXME( "ZeroTlsCell not supported on other threads\n" );
 622         return STATUS_NOT_IMPLEMENTED;
 623
 624     case ThreadImpersonationToken:
 625         {
 626             const HANDLE *phToken = data;
 627             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
 628             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
 629             SERVER_START_REQ( set_thread_info )
 630             {
 631                 req->handle   = handle;
 632                 req->token    = *phToken;
 633                 req->mask     = SET_THREAD_INFO_TOKEN;
 634                 status = wine_server_call( req );
 635             }
 636             SERVER_END_REQ;
 637         }
 638         return status;
 639     case ThreadBasePriority:
 640         {
 641             const DWORD *pprio = data;
 642             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
 643             SERVER_START_REQ( set_thread_info )
 644             {
 645                 req->handle   = handle;
 646                 req->priority = *pprio;
 647                 req->mask     = SET_THREAD_INFO_PRIORITY;
 648                 status = wine_server_call( req );
 649             }
 650             SERVER_END_REQ;
 651         }
 652         return status;
 653     case ThreadBasicInformation:
 654     case ThreadTimes:
 655     case ThreadPriority:
 656     case ThreadAffinityMask:
 657     case ThreadDescriptorTableEntry:
 658     case ThreadEnableAlignmentFaultFixup:
 659     case ThreadEventPair_Reusable:
 660     case ThreadQuerySetWin32StartAddress:
 661     case ThreadPerformanceCount:
 662     case ThreadAmILastThread:
 663     case ThreadIdealProcessor:
 664     case ThreadPriorityBoost:
 665     case ThreadSetTlsArrayAddress:
 666     case ThreadIsIoPending:
 667     default:
 668         FIXME( "info class %d not supported yet\n", class );
 669         return STATUS_NOT_IMPLEMENTED;
 670     }
 671 }
 672
 673
 674 /**********************************************************************
 675  *           NtCurrentTeb   (NTDLL.@)
 676  */
 677 #if defined(__i386__) && defined(__GNUC__)
 678
 679 __ASM_GLOBAL_FUNC( NtCurrentTeb, ".byte 0x64\n\tmovl 0x18,%eax\n\tret" );
 680
 681 #elif defined(__i386__) && defined(_MSC_VER)
 682
 683 /* Nothing needs to be done. MS C "magically" exports the inline version from winnt.h */
 684
 685 #else
 686
 687 /**********************************************************************/
 688
 689 TEB * WINAPI NtCurrentTeb(void)
 690 {
 691     return pthread_functions.get_current_teb();
 692 }
 693
 694 #endif  /* __i386__ */