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 <stdarg.h>
  26 #include <sys/types.h>
  27 #ifdef HAVE_SYS_MMAN_H
  28 #include <sys/mman.h>
  29 #endif
  30 #ifdef HAVE_SYS_TIMES_H
  31 #include <sys/times.h>
  32 #endif
  33
  34 #define NONAMELESSUNION
  35 #include "ntstatus.h"
  36 #define WIN32_NO_STATUS
  37 #include "winternl.h"
  38 #include "wine/library.h"
  39 #include "wine/server.h"
  40 #include "wine/debug.h"
  41 #include "ntdll_misc.h"
  42 #include "ddk/wdm.h"
  43 #include "wine/exception.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  46 WINE_DECLARE_DEBUG_CHANNEL(relay);
  47
  48 struct _KUSER_SHARED_DATA *user_shared_data = NULL;
  49
  50 PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter = NULL;
  51
  52 /* info passed to a starting thread */
  53 struct startup_info
  54 {
  55     TEB                            *teb;
  56     PRTL_THREAD_START_ROUTINE       entry_point;
  57     void                           *entry_arg;
  58 };
  59
  60 static PEB_LDR_DATA ldr;
  61 static RTL_USER_PROCESS_PARAMETERS params;  /* default parameters if no parent */
  62 static WCHAR current_dir[MAX_NT_PATH_LENGTH];
  63 static RTL_BITMAP tls_bitmap;
  64 static RTL_BITMAP tls_expansion_bitmap;
  65 static RTL_BITMAP fls_bitmap;
  66 static LIST_ENTRY tls_links;
  67 static size_t sigstack_total_size;
  68 static ULONG sigstack_zero_bits;
  69 static int nb_threads = 1;
  70
  71 static RTL_CRITICAL_SECTION ldt_section;
  72 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
  73 {
  74     0, 0, &ldt_section,
  75     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  76       0, 0, { (DWORD_PTR)(__FILE__ ": ldt_section") }
  77 };
  78 static RTL_CRITICAL_SECTION ldt_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  79 static sigset_t ldt_sigset;
  80
  81 /***********************************************************************
  82  *           locking for LDT routines
  83  */
  84 static void ldt_lock(void)
  85 {
  86     sigset_t sigset;
  87
  88     pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
  89     RtlEnterCriticalSection( &ldt_section );
  90     if (ldt_section.RecursionCount == 1) ldt_sigset = sigset;
  91 }
  92
  93 static void ldt_unlock(void)
  94 {
  95     if (ldt_section.RecursionCount == 1)
  96     {
  97         sigset_t sigset = ldt_sigset;
  98         RtlLeaveCriticalSection( &ldt_section );
  99         pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 100     }
 101     else RtlLeaveCriticalSection( &ldt_section );
 102 }
 103
 104
 105 /***********************************************************************
 106  *           init_teb
 107  */
 108 static inline NTSTATUS init_teb( TEB *teb )
 109 {
 110     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 111
 112     teb->Tib.ExceptionList = (void *)~0UL;
 113     teb->Tib.StackBase     = (void *)~0UL;
 114     teb->Tib.Self          = &teb->Tib;
 115     teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
 116     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
 117
 118     if (!(thread_data->fs = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
 119     thread_data->request_fd = -1;
 120     thread_data->reply_fd   = -1;
 121     thread_data->wait_fd[0] = -1;
 122     thread_data->wait_fd[1] = -1;
 123
 124     return STATUS_SUCCESS;
 125 }
 126
 127
 128 /***********************************************************************
 129  *           get_unicode_string
 130  *
 131  * Copy a unicode string from the startup info.
 132  */
 133 static inline void get_unicode_string( UNICODE_STRING *str, WCHAR **src, WCHAR **dst, UINT len )
 134 {
 135     str->Buffer = *dst;
 136     str->Length = len;
 137     str->MaximumLength = len + sizeof(WCHAR);
 138     memcpy( str->Buffer, *src, len );
 139     str->Buffer[len / sizeof(WCHAR)] = 0;
 140     *src += len / sizeof(WCHAR);
 141     *dst += len / sizeof(WCHAR) + 1;
 142 }
 143
 144 /***********************************************************************
 145  *           init_user_process_params
 146  *
 147  * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
 148  */
 149 static NTSTATUS init_user_process_params( SIZE_T data_size, HANDLE *exe_file )
 150 {
 151     void *ptr;
 152     WCHAR *src, *dst;
 153     SIZE_T info_size, env_size, size, alloc_size;
 154     NTSTATUS status;
 155     startup_info_t *info;
 156     RTL_USER_PROCESS_PARAMETERS *params = NULL;
 157
 158     if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, data_size )))
 159         return STATUS_NO_MEMORY;
 160
 161     SERVER_START_REQ( get_startup_info )
 162     {
 163         wine_server_set_reply( req, info, data_size );
 164         if (!(status = wine_server_call( req )))
 165         {
 166             data_size = wine_server_reply_size( reply );
 167             info_size = reply->info_size;
 168             env_size  = data_size - info_size;
 169             *exe_file = wine_server_ptr_handle( reply->exe_file );
 170         }
 171     }
 172     SERVER_END_REQ;
 173     if (status != STATUS_SUCCESS) goto done;
 174
 175     size = sizeof(*params);
 176     size += MAX_NT_PATH_LENGTH * sizeof(WCHAR);
 177     size += info->dllpath_len + sizeof(WCHAR);
 178     size += info->imagepath_len + sizeof(WCHAR);
 179     size += info->cmdline_len + sizeof(WCHAR);
 180     size += info->title_len + sizeof(WCHAR);
 181     size += info->desktop_len + sizeof(WCHAR);
 182     size += info->shellinfo_len + sizeof(WCHAR);
 183     size += info->runtime_len + sizeof(WCHAR);
 184
 185     alloc_size = size;
 186     status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &alloc_size,
 187                                       MEM_COMMIT, PAGE_READWRITE );
 188     if (status != STATUS_SUCCESS) goto done;
 189
 190     NtCurrentTeb()->Peb->ProcessParameters = params;
 191     params->AllocationSize  = alloc_size;
 192     params->Size            = size;
 193     params->Flags           = PROCESS_PARAMS_FLAG_NORMALIZED;
 194     params->DebugFlags      = info->debug_flags;
 195     params->ConsoleHandle   = wine_server_ptr_handle( info->console );
 196     params->ConsoleFlags    = info->console_flags;
 197     params->hStdInput       = wine_server_ptr_handle( info->hstdin );
 198     params->hStdOutput      = wine_server_ptr_handle( info->hstdout );
 199     params->hStdError       = wine_server_ptr_handle( info->hstderr );
 200     params->dwX             = info->x;
 201     params->dwY             = info->y;
 202     params->dwXSize         = info->xsize;
 203     params->dwYSize         = info->ysize;
 204     params->dwXCountChars   = info->xchars;
 205     params->dwYCountChars   = info->ychars;
 206     params->dwFillAttribute = info->attribute;
 207     params->dwFlags         = info->flags;
 208     params->wShowWindow     = info->show;
 209
 210     src = (WCHAR *)(info + 1);
 211     dst = (WCHAR *)(params + 1);
 212
 213     /* current directory needs more space */
 214     get_unicode_string( &params->CurrentDirectory.DosPath, &src, &dst, info->curdir_len );
 215     params->CurrentDirectory.DosPath.MaximumLength = MAX_NT_PATH_LENGTH * sizeof(WCHAR);
 216     dst = (WCHAR *)(params + 1) + MAX_NT_PATH_LENGTH;
 217
 218     get_unicode_string( &params->DllPath, &src, &dst, info->dllpath_len );
 219     get_unicode_string( &params->ImagePathName, &src, &dst, info->imagepath_len );
 220     get_unicode_string( &params->CommandLine, &src, &dst, info->cmdline_len );
 221     get_unicode_string( &params->WindowTitle, &src, &dst, info->title_len );
 222     get_unicode_string( &params->Desktop, &src, &dst, info->desktop_len );
 223     get_unicode_string( &params->ShellInfo, &src, &dst, info->shellinfo_len );
 224
 225     /* runtime info isn't a real string */
 226     params->RuntimeInfo.Buffer = dst;
 227     params->RuntimeInfo.Length = params->RuntimeInfo.MaximumLength = info->runtime_len;
 228     memcpy( dst, src, info->runtime_len );
 229
 230     /* environment needs to be a separate memory block */
 231     ptr = NULL;
 232     alloc_size = max( 1, env_size );
 233     status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &alloc_size,
 234                                       MEM_COMMIT, PAGE_READWRITE );
 235     if (status != STATUS_SUCCESS) goto done;
 236     memcpy( ptr, (char *)info + info_size, env_size );
 237     params->Environment = ptr;
 238
 239 done:
 240     RtlFreeHeap( GetProcessHeap(), 0, info );
 241     return status;
 242 }
 243
 244
 245 /***********************************************************************
 246  *           thread_init
 247  *
 248  * Setup the initial thread.
 249  *
 250  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 251  */
 252 HANDLE thread_init(void)
 253 {
 254     PEB *peb;
 255     TEB *teb;
 256     void *addr;
 257     SIZE_T size, info_size;
 258     HANDLE exe_file = 0;
 259     LARGE_INTEGER now;
 260     struct ntdll_thread_data *thread_data;
 261     static struct debug_info debug_info;  /* debug info for initial thread */
 262
 263     virtual_init();
 264
 265     /* reserve space for shared user data */
 266
 267     addr = (void *)0x7ffe0000;
 268     size = 0x10000;
 269     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE );
 270     user_shared_data = addr;
 271
 272     /* allocate and initialize the PEB */
 273
 274     addr = NULL;
 275     size = sizeof(*peb);
 276     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 1, &size,
 277                              MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 278     peb = addr;
 279
 280     peb->ProcessParameters  = &params;
 281     peb->TlsBitmap          = &tls_bitmap;
 282     peb->TlsExpansionBitmap = &tls_expansion_bitmap;
 283     peb->FlsBitmap          = &fls_bitmap;
 284     peb->LdrData            = &ldr;
 285     params.CurrentDirectory.DosPath.Buffer = current_dir;
 286     params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
 287     params.wShowWindow = 1; /* SW_SHOWNORMAL */
 288     RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 );
 289     RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits,
 290                          sizeof(peb->TlsExpansionBitmapBits) * 8 );
 291     RtlInitializeBitMap( &fls_bitmap, peb->FlsBitmapBits, sizeof(peb->FlsBitmapBits) * 8 );
 292     InitializeListHead( &peb->FlsListHead );
 293     InitializeListHead( &ldr.InLoadOrderModuleList );
 294     InitializeListHead( &ldr.InMemoryOrderModuleList );
 295     InitializeListHead( &ldr.InInitializationOrderModuleList );
 296     InitializeListHead( &tls_links );
 297
 298     /* allocate and initialize the initial TEB */
 299
 300     sigstack_total_size = get_signal_stack_total_size();
 301     while (1U << sigstack_zero_bits < sigstack_total_size) sigstack_zero_bits++;
 302     assert( 1U << sigstack_zero_bits == sigstack_total_size );  /* must be a power of 2 */
 303     assert( sigstack_total_size >= sizeof(TEB) + sizeof(struct startup_info) );
 304
 305     addr = NULL;
 306     size = sigstack_total_size;
 307     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 308                              &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 309     teb = addr;
 310     teb->Peb = peb;
 311     init_teb( teb );
 312     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 313     thread_data->debug_info = &debug_info;
 314     InsertHeadList( &tls_links, &teb->TlsLinks );
 315
 316     signal_init_thread( teb );
 317     virtual_init_threading();
 318
 319     debug_info.str_pos = debug_info.strings;
 320     debug_info.out_pos = debug_info.output;
 321     debug_init();
 322
 323     /* setup the server connection */
 324     server_init_process();
 325     info_size = server_init_thread( peb );
 326
 327     /* create the process heap */
 328     if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
 329     {
 330         MESSAGE( "wine: failed to create the process heap\n" );
 331         exit(1);
 332     }
 333
 334     /* allocate user parameters */
 335     if (info_size)
 336     {
 337         init_user_process_params( info_size, &exe_file );
 338     }
 339     else
 340     {
 341         /* This is wine specific: we have no parent (we're started from unix)
 342          * so, create a simple console with bare handles to unix stdio
 343          */
 344         wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE,  OBJ_INHERIT, &params.hStdInput );
 345         wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
 346         wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
 347     }
 348
 349     /* initialize LDT locking */
 350     wine_ldt_init_locking( ldt_lock, ldt_unlock );
 351
 352     /* initialize time values in user_shared_data */
 353     NtQuerySystemTime( &now );
 354     user_shared_data->SystemTime.LowPart = now.u.LowPart;
 355     user_shared_data->SystemTime.High1Time = user_shared_data->SystemTime.High2Time = now.u.HighPart;
 356     user_shared_data->u.TickCountQuad = (now.QuadPart - server_start_time) / 10000;
 357     user_shared_data->u.TickCount.High2Time = user_shared_data->u.TickCount.High1Time;
 358     user_shared_data->TickCountLowDeprecated = user_shared_data->u.TickCount.LowPart;
 359     user_shared_data->TickCountMultiplier = 1 << 24;
 360
 361     fill_cpu_info();
 362
 363     return exe_file;
 364 }
 365
 366
 367 /***********************************************************************
 368  *           terminate_thread
 369  */
 370 void terminate_thread( int status )
 371 {
 372     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 373     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1) _exit( status );
 374
 375     close( ntdll_get_thread_data()->wait_fd[0] );
 376     close( ntdll_get_thread_data()->wait_fd[1] );
 377     close( ntdll_get_thread_data()->reply_fd );
 378     close( ntdll_get_thread_data()->request_fd );
 379     pthread_exit( UIntToPtr(status) );
 380 }
 381
 382
 383 /***********************************************************************
 384  *           exit_thread
 385  */
 386 void exit_thread( int status )
 387 {
 388     static void *prev_teb;
 389     TEB *teb;
 390
 391     if (status)  /* send the exit code to the server (0 is already the default) */
 392     {
 393         SERVER_START_REQ( terminate_thread )
 394         {
 395             req->handle    = wine_server_obj_handle( GetCurrentThread() );
 396             req->exit_code = status;
 397             wine_server_call( req );
 398         }
 399         SERVER_END_REQ;
 400     }
 401
 402     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1)
 403     {
 404         LdrShutdownProcess();
 405         exit( status );
 406     }
 407
 408     LdrShutdownThread();
 409     RtlAcquirePebLock();
 410     RemoveEntryList( &NtCurrentTeb()->TlsLinks );
 411     RtlReleasePebLock();
 412     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots );
 413     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
 414
 415     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 416
 417     if ((teb = interlocked_xchg_ptr( &prev_teb, NtCurrentTeb() )))
 418     {
 419         struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 420         SIZE_T size;
 421
 422         pthread_join( thread_data->pthread_id, NULL );
 423         wine_ldt_free_fs( thread_data->fs );
 424         size = 0;
 425         NtFreeVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
 426         size = 0;
 427         NtFreeVirtualMemory( GetCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
 428     }
 429
 430     close( ntdll_get_thread_data()->wait_fd[0] );
 431     close( ntdll_get_thread_data()->wait_fd[1] );
 432     close( ntdll_get_thread_data()->reply_fd );
 433     close( ntdll_get_thread_data()->request_fd );
 434     pthread_exit( UIntToPtr(status) );
 435 }
 436
 437
 438 /***********************************************************************
 439  *           start_thread
 440  *
 441  * Startup routine for a newly created thread.
 442  */
 443 static void start_thread( struct startup_info *info )
 444 {
 445     TEB *teb = info->teb;
 446     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 447     PRTL_THREAD_START_ROUTINE func = info->entry_point;
 448     void *arg = info->entry_arg;
 449     struct debug_info debug_info;
 450
 451     debug_info.str_pos = debug_info.strings;
 452     debug_info.out_pos = debug_info.output;
 453     thread_data->debug_info = &debug_info;
 454     thread_data->pthread_id = pthread_self();
 455
 456     signal_init_thread( teb );
 457     server_init_thread( func );
 458     pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
 459
 460     RtlAcquirePebLock();
 461     InsertHeadList( &tls_links, &teb->TlsLinks );
 462     RtlReleasePebLock();
 463
 464     MODULE_DllThreadAttach( NULL );
 465
 466     if (TRACE_ON(relay))
 467         DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), func, arg );
 468
 469     call_thread_entry_point( (LPTHREAD_START_ROUTINE)func, arg );
 470 }
 471
 472
 473 /***********************************************************************
 474  *              RtlCreateUserThread   (NTDLL.@)
 475  */
 476 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 477                                      BOOLEAN suspended, PVOID stack_addr,
 478                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 479                                      PRTL_THREAD_START_ROUTINE start, void *param,
 480                                      HANDLE *handle_ptr, CLIENT_ID *id )
 481 {
 482     sigset_t sigset;
 483     pthread_t pthread_id;
 484     pthread_attr_t attr;
 485     struct ntdll_thread_data *thread_data = NULL;
 486     struct ntdll_thread_regs *thread_regs;
 487     struct startup_info *info = NULL;
 488     void *addr = NULL;
 489     HANDLE handle = 0;
 490     TEB *teb;
 491     DWORD tid = 0;
 492     int request_pipe[2];
 493     NTSTATUS status;
 494     SIZE_T size;
 495
 496     if (process != NtCurrentProcess())
 497     {
 498         apc_call_t call;
 499         apc_result_t result;
 500
 501         memset( &call, 0, sizeof(call) );
 502
 503         call.create_thread.type    = APC_CREATE_THREAD;
 504         call.create_thread.func    = wine_server_client_ptr( start );
 505         call.create_thread.arg     = wine_server_client_ptr( param );
 506         call.create_thread.reserve = stack_reserve;
 507         call.create_thread.commit  = stack_commit;
 508         call.create_thread.suspend = suspended;
 509         status = NTDLL_queue_process_apc( process, &call, &result );
 510         if (status != STATUS_SUCCESS) return status;
 511
 512         if (result.create_thread.status == STATUS_SUCCESS)
 513         {
 514             if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid);
 515             if (handle_ptr) *handle_ptr = wine_server_ptr_handle( result.create_thread.handle );
 516             else NtClose( wine_server_ptr_handle( result.create_thread.handle ));
 517         }
 518         return result.create_thread.status;
 519     }
 520
 521     if (server_pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 522     wine_server_send_fd( request_pipe[0] );
 523
 524     SERVER_START_REQ( new_thread )
 525     {
 526         req->access     = THREAD_ALL_ACCESS;
 527         req->attributes = 0;  /* FIXME */
 528         req->suspend    = suspended;
 529         req->request_fd = request_pipe[0];
 530         if (!(status = wine_server_call( req )))
 531         {
 532             handle = wine_server_ptr_handle( reply->handle );
 533             tid = reply->tid;
 534         }
 535         close( request_pipe[0] );
 536     }
 537     SERVER_END_REQ;
 538
 539     if (status)
 540     {
 541         close( request_pipe[1] );
 542         return status;
 543     }
 544
 545     pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
 546
 547     addr = NULL;
 548     size = sigstack_total_size;
 549     if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 550                                            &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
 551         goto error;
 552     teb = addr;
 553     teb->Peb = NtCurrentTeb()->Peb;
 554     info = (struct startup_info *)(teb + 1);
 555     info->teb         = teb;
 556     info->entry_point = start;
 557     info->entry_arg   = param;
 558
 559     if ((status = init_teb( teb ))) goto error;
 560
 561     teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId());
 562     teb->ClientId.UniqueThread  = ULongToHandle(tid);
 563
 564     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 565     thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
 566     thread_data->request_fd  = request_pipe[1];
 567
 568     /* inherit debug registers from parent thread */
 569     thread_regs->dr0 = ntdll_get_thread_regs()->dr0;
 570     thread_regs->dr1 = ntdll_get_thread_regs()->dr1;
 571     thread_regs->dr2 = ntdll_get_thread_regs()->dr2;
 572     thread_regs->dr3 = ntdll_get_thread_regs()->dr3;
 573     thread_regs->dr6 = ntdll_get_thread_regs()->dr6;
 574     thread_regs->dr7 = ntdll_get_thread_regs()->dr7;
 575
 576     if ((status = virtual_alloc_thread_stack( teb, stack_reserve, stack_commit ))) goto error;
 577
 578     pthread_attr_init( &attr );
 579     pthread_attr_setstack( &attr, teb->DeallocationStack,
 580                            (char *)teb->Tib.StackBase - (char *)teb->DeallocationStack );
 581     pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM ); /* force creating a kernel thread */
 582     interlocked_xchg_add( &nb_threads, 1 );
 583     if (pthread_create( &pthread_id, &attr, (void * (*)(void *))start_thread, info ))
 584     {
 585         interlocked_xchg_add( &nb_threads, -1 );
 586         pthread_attr_destroy( &attr );
 587         size = 0;
 588         NtFreeVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
 589         status = STATUS_NO_MEMORY;
 590         goto error;
 591     }
 592     pthread_attr_destroy( &attr );
 593     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 594
 595     if (id) id->UniqueThread = ULongToHandle(tid);
 596     if (handle_ptr) *handle_ptr = handle;
 597     else NtClose( handle );
 598
 599     return STATUS_SUCCESS;
 600
 601 error:
 602     if (thread_data) wine_ldt_free_fs( thread_data->fs );
 603     if (addr)
 604     {
 605         size = 0;
 606         NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
 607     }
 608     if (handle) NtClose( handle );
 609     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 610     close( request_pipe[1] );
 611     return status;
 612 }
 613
 614
 615 /***********************************************************************
 616  *              NtOpenThread   (NTDLL.@)
 617  *              ZwOpenThread   (NTDLL.@)
 618  */
 619 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 620                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 621 {
 622     NTSTATUS ret;
 623
 624     SERVER_START_REQ( open_thread )
 625     {
 626         req->tid        = HandleToULong(id->UniqueThread);
 627         req->access     = access;
 628         req->attributes = attr ? attr->Attributes : 0;
 629         ret = wine_server_call( req );
 630         *handle = wine_server_ptr_handle( reply->handle );
 631     }
 632     SERVER_END_REQ;
 633     return ret;
 634 }
 635
 636
 637 /******************************************************************************
 638  *              NtSuspendThread   (NTDLL.@)
 639  *              ZwSuspendThread   (NTDLL.@)
 640  */
 641 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 642 {
 643     NTSTATUS ret;
 644
 645     SERVER_START_REQ( suspend_thread )
 646     {
 647         req->handle = wine_server_obj_handle( handle );
 648         if (!(ret = wine_server_call( req ))) *count = reply->count;
 649     }
 650     SERVER_END_REQ;
 651     return ret;
 652 }
 653
 654
 655 /******************************************************************************
 656  *              NtResumeThread   (NTDLL.@)
 657  *              ZwResumeThread   (NTDLL.@)
 658  */
 659 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 660 {
 661     NTSTATUS ret;
 662
 663     SERVER_START_REQ( resume_thread )
 664     {
 665         req->handle = wine_server_obj_handle( handle );
 666         if (!(ret = wine_server_call( req ))) *count = reply->count;
 667     }
 668     SERVER_END_REQ;
 669     return ret;
 670 }
 671
 672
 673 /******************************************************************************
 674  *              NtAlertResumeThread   (NTDLL.@)
 675  *              ZwAlertResumeThread   (NTDLL.@)
 676  */
 677 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
 678 {
 679     FIXME( "stub: should alert thread %p\n", handle );
 680     return NtResumeThread( handle, count );
 681 }
 682
 683
 684 /******************************************************************************
 685  *              NtAlertThread   (NTDLL.@)
 686  *              ZwAlertThread   (NTDLL.@)
 687  */
 688 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
 689 {
 690     FIXME( "stub: %p\n", handle );
 691     return STATUS_NOT_IMPLEMENTED;
 692 }
 693
 694
 695 /******************************************************************************
 696  *              NtTerminateThread  (NTDLL.@)
 697  *              ZwTerminateThread  (NTDLL.@)
 698  */
 699 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 700 {
 701     NTSTATUS ret;
 702     BOOL self;
 703
 704     SERVER_START_REQ( terminate_thread )
 705     {
 706         req->handle    = wine_server_obj_handle( handle );
 707         req->exit_code = exit_code;
 708         ret = wine_server_call( req );
 709         self = !ret && reply->self;
 710     }
 711     SERVER_END_REQ;
 712
 713     if (self) abort_thread( exit_code );
 714     return ret;
 715 }
 716
 717
 718 /******************************************************************************
 719  *              NtQueueApcThread  (NTDLL.@)
 720  */
 721 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 722                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 723 {
 724     NTSTATUS ret;
 725     SERVER_START_REQ( queue_apc )
 726     {
 727         req->handle = wine_server_obj_handle( handle );
 728         if (func)
 729         {
 730             req->call.type         = APC_USER;
 731             req->call.user.func    = wine_server_client_ptr( func );
 732             req->call.user.args[0] = arg1;
 733             req->call.user.args[1] = arg2;
 734             req->call.user.args[2] = arg3;
 735         }
 736         else req->call.type = APC_NONE;  /* wake up only */
 737         ret = wine_server_call( req );
 738     }
 739     SERVER_END_REQ;
 740     return ret;
 741 }
 742
 743
 744 /***********************************************************************
 745  *              NtSetContextThread  (NTDLL.@)
 746  *              ZwSetContextThread  (NTDLL.@)
 747  */
 748 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 749 {
 750     NTSTATUS ret;
 751     DWORD dummy, i;
 752     BOOL self = FALSE;
 753
 754 #ifdef __i386__
 755     /* on i386 debug registers always require a server call */
 756     self = (handle == GetCurrentThread());
 757     if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
 758     {
 759         struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 760         self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 &&
 761                 regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 &&
 762                 regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7);
 763     }
 764 #endif
 765
 766     if (!self)
 767     {
 768         context_t server_context;
 769
 770         context_to_server( &server_context, context );
 771
 772         SERVER_START_REQ( set_thread_context )
 773         {
 774             req->handle  = wine_server_obj_handle( handle );
 775             req->suspend = 0;
 776             wine_server_add_data( req, &server_context, sizeof(server_context) );
 777             ret = wine_server_call( req );
 778             self = reply->self;
 779         }
 780         SERVER_END_REQ;
 781
 782         if (ret == STATUS_PENDING)
 783         {
 784             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 785             {
 786                 for (i = 0; i < 100; i++)
 787                 {
 788                     SERVER_START_REQ( set_thread_context )
 789                     {
 790                         req->handle  = wine_server_obj_handle( handle );
 791                         req->suspend = 0;
 792                         wine_server_add_data( req, &server_context, sizeof(server_context) );
 793                         ret = wine_server_call( req );
 794                     }
 795                     SERVER_END_REQ;
 796                     if (ret == STATUS_PENDING)
 797                     {
 798                         LARGE_INTEGER timeout;
 799                         timeout.QuadPart = -10000;
 800                         NtDelayExecution( FALSE, &timeout );
 801                     }
 802                     else break;
 803                 }
 804                 NtResumeThread( handle, &dummy );
 805             }
 806             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 807         }
 808
 809         if (ret) return ret;
 810     }
 811
 812     if (self) set_cpu_context( context );
 813     return STATUS_SUCCESS;
 814 }
 815
 816
 817 /* convert CPU-specific flags to generic server flags */
 818 static inline unsigned int get_server_context_flags( DWORD flags )
 819 {
 820     unsigned int ret = 0;
 821
 822     flags &= 0x3f;  /* mask CPU id flags */
 823     if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
 824     if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
 825 #ifdef CONTEXT_SEGMENTS
 826     if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
 827 #endif
 828 #ifdef CONTEXT_FLOATING_POINT
 829     if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
 830 #endif
 831 #ifdef CONTEXT_DEBUG_REGISTERS
 832     if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
 833 #endif
 834 #ifdef CONTEXT_EXTENDED_REGISTERS
 835     if (flags & CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS;
 836 #endif
 837     return ret;
 838 }
 839
 840 /***********************************************************************
 841  *              NtGetContextThread  (NTDLL.@)
 842  *              ZwGetContextThread  (NTDLL.@)
 843  */
 844 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
 845 {
 846     NTSTATUS ret;
 847     DWORD dummy, i;
 848     DWORD needed_flags = context->ContextFlags;
 849     BOOL self = (handle == GetCurrentThread());
 850
 851 #ifdef __i386__
 852     /* on i386 debug registers always require a server call */
 853     if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
 854 #endif
 855
 856     if (!self)
 857     {
 858         unsigned int server_flags = get_server_context_flags( context->ContextFlags );
 859         context_t server_context;
 860
 861         SERVER_START_REQ( get_thread_context )
 862         {
 863             req->handle  = wine_server_obj_handle( handle );
 864             req->flags   = server_flags;
 865             req->suspend = 0;
 866             wine_server_set_reply( req, &server_context, sizeof(server_context) );
 867             ret = wine_server_call( req );
 868             self = reply->self;
 869         }
 870         SERVER_END_REQ;
 871
 872         if (ret == STATUS_PENDING)
 873         {
 874             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 875             {
 876                 for (i = 0; i < 100; i++)
 877                 {
 878                     SERVER_START_REQ( get_thread_context )
 879                     {
 880                         req->handle  = wine_server_obj_handle( handle );
 881                         req->flags   = server_flags;
 882                         req->suspend = 0;
 883                         wine_server_set_reply( req, &server_context, sizeof(server_context) );
 884                         ret = wine_server_call( req );
 885                     }
 886                     SERVER_END_REQ;
 887                     if (ret == STATUS_PENDING)
 888                     {
 889                         LARGE_INTEGER timeout;
 890                         timeout.QuadPart = -10000;
 891                         NtDelayExecution( FALSE, &timeout );
 892                     }
 893                     else break;
 894                 }
 895                 NtResumeThread( handle, &dummy );
 896             }
 897             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 898         }
 899         if (!ret) ret = context_from_server( context, &server_context );
 900         if (ret) return ret;
 901         needed_flags &= ~context->ContextFlags;
 902     }
 903
 904     if (self)
 905     {
 906         if (needed_flags)
 907         {
 908             CONTEXT ctx;
 909             RtlCaptureContext( &ctx );
 910             copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
 911             context->ContextFlags |= ctx.ContextFlags & needed_flags;
 912         }
 913 #ifdef __i386__
 914         /* update the cached version of the debug registers */
 915         if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
 916         {
 917             struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 918             regs->dr0 = context->Dr0;
 919             regs->dr1 = context->Dr1;
 920             regs->dr2 = context->Dr2;
 921             regs->dr3 = context->Dr3;
 922             regs->dr6 = context->Dr6;
 923             regs->dr7 = context->Dr7;
 924         }
 925 #endif
 926     }
 927     return STATUS_SUCCESS;
 928 }
 929
 930
 931 /******************************************************************************
 932  *              NtQueryInformationThread  (NTDLL.@)
 933  *              ZwQueryInformationThread  (NTDLL.@)
 934  */
 935 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
 936                                           void *data, ULONG length, ULONG *ret_len )
 937 {
 938     NTSTATUS status;
 939
 940     switch(class)
 941     {
 942     case ThreadBasicInformation:
 943         {
 944             THREAD_BASIC_INFORMATION info;
 945             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 946
 947             SERVER_START_REQ( get_thread_info )
 948             {
 949                 req->handle = wine_server_obj_handle( handle );
 950                 req->tid_in = 0;
 951                 if (!(status = wine_server_call( req )))
 952                 {
 953                     info.ExitStatus             = reply->exit_code;
 954                     info.TebBaseAddress         = wine_server_get_ptr( reply->teb );
 955                     info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
 956                     info.ClientId.UniqueThread  = ULongToHandle(reply->tid);
 957                     info.AffinityMask           = reply->affinity & affinity_mask;
 958                     info.Priority               = reply->priority;
 959                     info.BasePriority           = reply->priority;  /* FIXME */
 960                 }
 961             }
 962             SERVER_END_REQ;
 963             if (status == STATUS_SUCCESS)
 964             {
 965                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
 966                 if (ret_len) *ret_len = min( length, sizeof(info) );
 967             }
 968         }
 969         return status;
 970     case ThreadAffinityMask:
 971         {
 972             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 973             ULONG_PTR affinity = 0;
 974
 975             SERVER_START_REQ( get_thread_info )
 976             {
 977                 req->handle = wine_server_obj_handle( handle );
 978                 req->tid_in = 0;
 979                 if (!(status = wine_server_call( req )))
 980                     affinity = reply->affinity & affinity_mask;
 981             }
 982             SERVER_END_REQ;
 983             if (status == STATUS_SUCCESS)
 984             {
 985                 if (data) memcpy( data, &affinity, min( length, sizeof(affinity) ));
 986                 if (ret_len) *ret_len = min( length, sizeof(affinity) );
 987             }
 988         }
 989         return status;
 990     case ThreadTimes:
 991         {
 992             KERNEL_USER_TIMES   kusrt;
 993             /* We need to do a server call to get the creation time or exit time */
 994             /* This works on any thread */
 995             SERVER_START_REQ( get_thread_info )
 996             {
 997                 req->handle = wine_server_obj_handle( handle );
 998                 req->tid_in = 0;
 999                 status = wine_server_call( req );
1000                 if (status == STATUS_SUCCESS)
1001                 {
1002                     kusrt.CreateTime.QuadPart = reply->creation_time;
1003                     kusrt.ExitTime.QuadPart = reply->exit_time;
1004                 }
1005             }
1006             SERVER_END_REQ;
1007             if (status == STATUS_SUCCESS)
1008             {
1009                 /* We call times(2) for kernel time or user time */
1010                 /* We can only (portably) do this for the current thread */
1011                 if (handle == GetCurrentThread())
1012                 {
1013                     struct tms time_buf;
1014                     long clocks_per_sec = sysconf(_SC_CLK_TCK);
1015
1016                     times(&time_buf);
1017                     kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
1018                     kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
1019                 }
1020                 else
1021                 {
1022                     static BOOL reported = FALSE;
1023
1024                     kusrt.KernelTime.QuadPart = 0;
1025                     kusrt.UserTime.QuadPart = 0;
1026                     if (reported)
1027                         TRACE("Cannot get kerneltime or usertime of other threads\n");
1028                     else
1029                     {
1030                         FIXME("Cannot get kerneltime or usertime of other threads\n");
1031                         reported = TRUE;
1032                     }
1033                 }
1034                 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
1035                 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
1036             }
1037         }
1038         return status;
1039     case ThreadDescriptorTableEntry:
1040         {
1041 #ifdef __i386__
1042             THREAD_DESCRIPTOR_INFORMATION*      tdi = data;
1043             if (length < sizeof(*tdi))
1044                 status = STATUS_INFO_LENGTH_MISMATCH;
1045             else if (!(tdi->Selector & 4))  /* GDT selector */
1046             {
1047                 unsigned sel = tdi->Selector & ~3;  /* ignore RPL */
1048                 status = STATUS_SUCCESS;
1049                 if (!sel)  /* null selector */
1050                     memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
1051                 else
1052                 {
1053                     tdi->Entry.BaseLow                   = 0;
1054                     tdi->Entry.HighWord.Bits.BaseMid     = 0;
1055                     tdi->Entry.HighWord.Bits.BaseHi      = 0;
1056                     tdi->Entry.LimitLow                  = 0xffff;
1057                     tdi->Entry.HighWord.Bits.LimitHi     = 0xf;
1058                     tdi->Entry.HighWord.Bits.Dpl         = 3;
1059                     tdi->Entry.HighWord.Bits.Sys         = 0;
1060                     tdi->Entry.HighWord.Bits.Pres        = 1;
1061                     tdi->Entry.HighWord.Bits.Granularity = 1;
1062                     tdi->Entry.HighWord.Bits.Default_Big = 1;
1063                     tdi->Entry.HighWord.Bits.Type        = 0x12;
1064                     /* it has to be one of the system GDT selectors */
1065                     if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
1066                     {
1067                         if (sel == (wine_get_cs() & ~3))
1068                             tdi->Entry.HighWord.Bits.Type |= 8;  /* code segment */
1069                         else status = STATUS_ACCESS_DENIED;
1070                     }
1071                 }
1072             }
1073             else
1074             {
1075                 SERVER_START_REQ( get_selector_entry )
1076                 {
1077                     req->handle = wine_server_obj_handle( handle );
1078                     req->entry = tdi->Selector >> 3;
1079                     status = wine_server_call( req );
1080                     if (!status)
1081                     {
1082                         if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1083                             status = STATUS_ACCESS_VIOLATION;
1084                         else
1085                         {
1086                             wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1087                             wine_ldt_set_limit( &tdi->Entry, reply->limit );
1088                             wine_ldt_set_flags( &tdi->Entry, reply->flags );
1089                         }
1090                     }
1091                 }
1092                 SERVER_END_REQ;
1093             }
1094             if (status == STATUS_SUCCESS && ret_len)
1095                 /* yes, that's a bit strange, but it's the way it is */
1096                 *ret_len = sizeof(LDT_ENTRY);
1097 #else
1098             status = STATUS_NOT_IMPLEMENTED;
1099 #endif
1100             return status;
1101         }
1102     case ThreadAmILastThread:
1103         {
1104             SERVER_START_REQ(get_thread_info)
1105             {
1106                 req->handle = wine_server_obj_handle( handle );
1107                 req->tid_in = 0;
1108                 status = wine_server_call( req );
1109                 if (status == STATUS_SUCCESS)
1110                 {
1111                     BOOLEAN last = reply->last;
1112                     if (data) memcpy( data, &last, min( length, sizeof(last) ));
1113                     if (ret_len) *ret_len = min( length, sizeof(last) );
1114                 }
1115             }
1116             SERVER_END_REQ;
1117             return status;
1118         }
1119     case ThreadPriority:
1120     case ThreadBasePriority:
1121     case ThreadImpersonationToken:
1122     case ThreadEnableAlignmentFaultFixup:
1123     case ThreadEventPair_Reusable:
1124     case ThreadQuerySetWin32StartAddress:
1125     case ThreadZeroTlsCell:
1126     case ThreadPerformanceCount:
1127     case ThreadIdealProcessor:
1128     case ThreadPriorityBoost:
1129     case ThreadSetTlsArrayAddress:
1130     case ThreadIsIoPending:
1131     default:
1132         FIXME( "info class %d not supported yet\n", class );
1133         return STATUS_NOT_IMPLEMENTED;
1134     }
1135 }
1136
1137
1138 /******************************************************************************
1139  *              NtSetInformationThread  (NTDLL.@)
1140  *              ZwSetInformationThread  (NTDLL.@)
1141  */
1142 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1143                                         LPCVOID data, ULONG length )
1144 {
1145     NTSTATUS status;
1146     switch(class)
1147     {
1148     case ThreadZeroTlsCell:
1149         if (handle == GetCurrentThread())
1150         {
1151             LIST_ENTRY *entry;
1152             DWORD index;
1153
1154             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1155             index = *(const DWORD *)data;
1156             if (index < TLS_MINIMUM_AVAILABLE)
1157             {
1158                 RtlAcquirePebLock();
1159                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1160                 {
1161                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1162                     teb->TlsSlots[index] = 0;
1163                 }
1164                 RtlReleasePebLock();
1165             }
1166             else
1167             {
1168                 index -= TLS_MINIMUM_AVAILABLE;
1169                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1170                     return STATUS_INVALID_PARAMETER;
1171                 RtlAcquirePebLock();
1172                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1173                 {
1174                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1175                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1176                 }
1177                 RtlReleasePebLock();
1178             }
1179             return STATUS_SUCCESS;
1180         }
1181         FIXME( "ZeroTlsCell not supported on other threads\n" );
1182         return STATUS_NOT_IMPLEMENTED;
1183
1184     case ThreadImpersonationToken:
1185         {
1186             const HANDLE *phToken = data;
1187             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1188             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1189             SERVER_START_REQ( set_thread_info )
1190             {
1191                 req->handle   = wine_server_obj_handle( handle );
1192                 req->token    = wine_server_obj_handle( *phToken );
1193                 req->mask     = SET_THREAD_INFO_TOKEN;
1194                 status = wine_server_call( req );
1195             }
1196             SERVER_END_REQ;
1197         }
1198         return status;
1199     case ThreadBasePriority:
1200         {
1201             const DWORD *pprio = data;
1202             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1203             SERVER_START_REQ( set_thread_info )
1204             {
1205                 req->handle   = wine_server_obj_handle( handle );
1206                 req->priority = *pprio;
1207                 req->mask     = SET_THREAD_INFO_PRIORITY;
1208                 status = wine_server_call( req );
1209             }
1210             SERVER_END_REQ;
1211         }
1212         return status;
1213     case ThreadAffinityMask:
1214         {
1215             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1216             const ULONG_PTR *paff = data;
1217             if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER;
1218             if (*paff & ~affinity_mask) return STATUS_INVALID_PARAMETER;
1219             SERVER_START_REQ( set_thread_info )
1220             {
1221                 req->handle   = wine_server_obj_handle( handle );
1222                 req->affinity = *paff;
1223                 req->mask     = SET_THREAD_INFO_AFFINITY;
1224                 status = wine_server_call( req );
1225             }
1226             SERVER_END_REQ;
1227         }
1228         return status;
1229     case ThreadBasicInformation:
1230     case ThreadTimes:
1231     case ThreadPriority:
1232     case ThreadDescriptorTableEntry:
1233     case ThreadEnableAlignmentFaultFixup:
1234     case ThreadEventPair_Reusable:
1235     case ThreadQuerySetWin32StartAddress:
1236     case ThreadPerformanceCount:
1237     case ThreadAmILastThread:
1238     case ThreadIdealProcessor:
1239     case ThreadPriorityBoost:
1240     case ThreadSetTlsArrayAddress:
1241     case ThreadIsIoPending:
1242     default:
1243         FIXME( "info class %d not supported yet\n", class );
1244         return STATUS_NOT_IMPLEMENTED;
1245     }
1246 }