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->NumberOfProcessors = 1;
 281     peb->ProcessParameters  = &params;
 282     peb->TlsBitmap          = &tls_bitmap;
 283     peb->TlsExpansionBitmap = &tls_expansion_bitmap;
 284     peb->FlsBitmap          = &fls_bitmap;
 285     peb->LdrData            = &ldr;
 286     params.CurrentDirectory.DosPath.Buffer = current_dir;
 287     params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
 288     params.wShowWindow = 1; /* SW_SHOWNORMAL */
 289     RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 );
 290     RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits,
 291                          sizeof(peb->TlsExpansionBitmapBits) * 8 );
 292     RtlInitializeBitMap( &fls_bitmap, peb->FlsBitmapBits, sizeof(peb->FlsBitmapBits) * 8 );
 293     InitializeListHead( &peb->FlsListHead );
 294     InitializeListHead( &ldr.InLoadOrderModuleList );
 295     InitializeListHead( &ldr.InMemoryOrderModuleList );
 296     InitializeListHead( &ldr.InInitializationOrderModuleList );
 297     InitializeListHead( &tls_links );
 298
 299     /* allocate and initialize the initial TEB */
 300
 301     sigstack_total_size = get_signal_stack_total_size();
 302     while (1U << sigstack_zero_bits < sigstack_total_size) sigstack_zero_bits++;
 303     assert( 1U << sigstack_zero_bits == sigstack_total_size );  /* must be a power of 2 */
 304     assert( sigstack_total_size >= sizeof(TEB) + sizeof(struct startup_info) );
 305
 306     addr = NULL;
 307     size = sigstack_total_size;
 308     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 309                              &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 310     teb = addr;
 311     teb->Peb = peb;
 312     init_teb( teb );
 313     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 314     thread_data->debug_info = &debug_info;
 315     InsertHeadList( &tls_links, &teb->TlsLinks );
 316
 317     signal_init_thread( teb );
 318     virtual_init_threading();
 319
 320     debug_info.str_pos = debug_info.strings;
 321     debug_info.out_pos = debug_info.output;
 322     debug_init();
 323
 324     /* setup the server connection */
 325     server_init_process();
 326     info_size = server_init_thread( peb );
 327
 328     /* create the process heap */
 329     if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
 330     {
 331         MESSAGE( "wine: failed to create the process heap\n" );
 332         exit(1);
 333     }
 334
 335     /* allocate user parameters */
 336     if (info_size)
 337     {
 338         init_user_process_params( info_size, &exe_file );
 339     }
 340     else
 341     {
 342         /* This is wine specific: we have no parent (we're started from unix)
 343          * so, create a simple console with bare handles to unix stdio
 344          */
 345         wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE,  OBJ_INHERIT, &params.hStdInput );
 346         wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
 347         wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
 348     }
 349
 350     /* initialize LDT locking */
 351     wine_ldt_init_locking( ldt_lock, ldt_unlock );
 352
 353     /* initialize time values in user_shared_data */
 354     NtQuerySystemTime( &now );
 355     user_shared_data->SystemTime.LowPart = now.u.LowPart;
 356     user_shared_data->SystemTime.High1Time = user_shared_data->SystemTime.High2Time = now.u.HighPart;
 357     user_shared_data->u.TickCountQuad = (now.QuadPart - server_start_time) / 10000;
 358     user_shared_data->u.TickCount.High2Time = user_shared_data->u.TickCount.High1Time;
 359     user_shared_data->TickCountLowDeprecated = user_shared_data->u.TickCount.LowPart;
 360     user_shared_data->TickCountMultiplier = 1 << 24;
 361
 362     return exe_file;
 363 }
 364
 365
 366 /***********************************************************************
 367  *           abort_thread
 368  */
 369 void abort_thread( int status )
 370 {
 371     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 372     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1) _exit( status );
 373
 374     close( ntdll_get_thread_data()->wait_fd[0] );
 375     close( ntdll_get_thread_data()->wait_fd[1] );
 376     close( ntdll_get_thread_data()->reply_fd );
 377     close( ntdll_get_thread_data()->request_fd );
 378     pthread_exit( UIntToPtr(status) );
 379 }
 380
 381
 382 /***********************************************************************
 383  *           exit_thread
 384  */
 385 void exit_thread( int status )
 386 {
 387     static void *prev_teb;
 388     TEB *teb;
 389
 390     if (status)  /* send the exit code to the server (0 is already the default) */
 391     {
 392         SERVER_START_REQ( terminate_thread )
 393         {
 394             req->handle    = wine_server_obj_handle( GetCurrentThread() );
 395             req->exit_code = status;
 396             wine_server_call( req );
 397         }
 398         SERVER_END_REQ;
 399     }
 400
 401     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1)
 402     {
 403         LdrShutdownProcess();
 404         exit( status );
 405     }
 406
 407     LdrShutdownThread();
 408     RtlAcquirePebLock();
 409     RemoveEntryList( &NtCurrentTeb()->TlsLinks );
 410     RtlReleasePebLock();
 411     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots );
 412     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
 413
 414     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 415
 416     if ((teb = interlocked_xchg_ptr( &prev_teb, NtCurrentTeb() )))
 417     {
 418         struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 419         SIZE_T size;
 420
 421         pthread_join( thread_data->pthread_id, NULL );
 422         wine_ldt_free_fs( thread_data->fs );
 423         size = 0;
 424         NtFreeVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
 425         size = 0;
 426         NtFreeVirtualMemory( GetCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
 427     }
 428
 429     close( ntdll_get_thread_data()->wait_fd[0] );
 430     close( ntdll_get_thread_data()->wait_fd[1] );
 431     close( ntdll_get_thread_data()->reply_fd );
 432     close( ntdll_get_thread_data()->request_fd );
 433     pthread_exit( UIntToPtr(status) );
 434 }
 435
 436
 437 /***********************************************************************
 438  *           start_thread
 439  *
 440  * Startup routine for a newly created thread.
 441  */
 442 static void start_thread( struct startup_info *info )
 443 {
 444     TEB *teb = info->teb;
 445     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 446     PRTL_THREAD_START_ROUTINE func = info->entry_point;
 447     void *arg = info->entry_arg;
 448     struct debug_info debug_info;
 449
 450     debug_info.str_pos = debug_info.strings;
 451     debug_info.out_pos = debug_info.output;
 452     thread_data->debug_info = &debug_info;
 453     thread_data->pthread_id = pthread_self();
 454
 455     signal_init_thread( teb );
 456     server_init_thread( func );
 457     pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
 458
 459     RtlAcquirePebLock();
 460     InsertHeadList( &tls_links, &teb->TlsLinks );
 461     RtlReleasePebLock();
 462
 463     MODULE_DllThreadAttach( NULL );
 464
 465     if (TRACE_ON(relay))
 466         DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), func, arg );
 467
 468     call_thread_entry_point( (LPTHREAD_START_ROUTINE)func, arg );
 469 }
 470
 471
 472 /***********************************************************************
 473  *              RtlCreateUserThread   (NTDLL.@)
 474  */
 475 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 476                                      BOOLEAN suspended, PVOID stack_addr,
 477                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 478                                      PRTL_THREAD_START_ROUTINE start, void *param,
 479                                      HANDLE *handle_ptr, CLIENT_ID *id )
 480 {
 481     sigset_t sigset;
 482     pthread_t pthread_id;
 483     pthread_attr_t attr;
 484     struct ntdll_thread_data *thread_data = NULL;
 485     struct ntdll_thread_regs *thread_regs;
 486     struct startup_info *info = NULL;
 487     void *addr = NULL;
 488     HANDLE handle = 0;
 489     TEB *teb;
 490     DWORD tid = 0;
 491     int request_pipe[2];
 492     NTSTATUS status;
 493     SIZE_T size;
 494
 495     if (process != NtCurrentProcess())
 496     {
 497         apc_call_t call;
 498         apc_result_t result;
 499
 500         memset( &call, 0, sizeof(call) );
 501
 502         call.create_thread.type    = APC_CREATE_THREAD;
 503         call.create_thread.func    = wine_server_client_ptr( start );
 504         call.create_thread.arg     = wine_server_client_ptr( param );
 505         call.create_thread.reserve = stack_reserve;
 506         call.create_thread.commit  = stack_commit;
 507         call.create_thread.suspend = suspended;
 508         status = NTDLL_queue_process_apc( process, &call, &result );
 509         if (status != STATUS_SUCCESS) return status;
 510
 511         if (result.create_thread.status == STATUS_SUCCESS)
 512         {
 513             if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid);
 514             if (handle_ptr) *handle_ptr = wine_server_ptr_handle( result.create_thread.handle );
 515             else NtClose( wine_server_ptr_handle( result.create_thread.handle ));
 516         }
 517         return result.create_thread.status;
 518     }
 519
 520     if (server_pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 521     wine_server_send_fd( request_pipe[0] );
 522
 523     SERVER_START_REQ( new_thread )
 524     {
 525         req->access     = THREAD_ALL_ACCESS;
 526         req->attributes = 0;  /* FIXME */
 527         req->suspend    = suspended;
 528         req->request_fd = request_pipe[0];
 529         if (!(status = wine_server_call( req )))
 530         {
 531             handle = wine_server_ptr_handle( reply->handle );
 532             tid = reply->tid;
 533         }
 534         close( request_pipe[0] );
 535     }
 536     SERVER_END_REQ;
 537
 538     if (status)
 539     {
 540         close( request_pipe[1] );
 541         return status;
 542     }
 543
 544     pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
 545
 546     addr = NULL;
 547     size = sigstack_total_size;
 548     if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 549                                            &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
 550         goto error;
 551     teb = addr;
 552     teb->Peb = NtCurrentTeb()->Peb;
 553     info = (struct startup_info *)(teb + 1);
 554     info->teb         = teb;
 555     info->entry_point = start;
 556     info->entry_arg   = param;
 557
 558     if ((status = init_teb( teb ))) goto error;
 559
 560     teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId());
 561     teb->ClientId.UniqueThread  = ULongToHandle(tid);
 562
 563     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 564     thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
 565     thread_data->request_fd  = request_pipe[1];
 566
 567     /* inherit debug registers from parent thread */
 568     thread_regs->dr0 = ntdll_get_thread_regs()->dr0;
 569     thread_regs->dr1 = ntdll_get_thread_regs()->dr1;
 570     thread_regs->dr2 = ntdll_get_thread_regs()->dr2;
 571     thread_regs->dr3 = ntdll_get_thread_regs()->dr3;
 572     thread_regs->dr6 = ntdll_get_thread_regs()->dr6;
 573     thread_regs->dr7 = ntdll_get_thread_regs()->dr7;
 574
 575     if ((status = virtual_alloc_thread_stack( teb, stack_reserve, stack_commit ))) goto error;
 576
 577     pthread_attr_init( &attr );
 578     pthread_attr_setstack( &attr, teb->DeallocationStack,
 579                            (char *)teb->Tib.StackBase - (char *)teb->DeallocationStack );
 580     pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM ); /* force creating a kernel thread */
 581     interlocked_xchg_add( &nb_threads, 1 );
 582     if (pthread_create( &pthread_id, &attr, (void * (*)(void *))start_thread, info ))
 583     {
 584         interlocked_xchg_add( &nb_threads, -1 );
 585         pthread_attr_destroy( &attr );
 586         size = 0;
 587         NtFreeVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
 588         status = STATUS_NO_MEMORY;
 589         goto error;
 590     }
 591     pthread_attr_destroy( &attr );
 592     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 593
 594     if (id) id->UniqueThread = ULongToHandle(tid);
 595     if (handle_ptr) *handle_ptr = handle;
 596     else NtClose( handle );
 597
 598     return STATUS_SUCCESS;
 599
 600 error:
 601     if (thread_data) wine_ldt_free_fs( thread_data->fs );
 602     if (addr)
 603     {
 604         size = 0;
 605         NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
 606     }
 607     if (handle) NtClose( handle );
 608     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 609     close( request_pipe[1] );
 610     return status;
 611 }
 612
 613
 614 /***********************************************************************
 615  *              NtOpenThread   (NTDLL.@)
 616  *              ZwOpenThread   (NTDLL.@)
 617  */
 618 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 619                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 620 {
 621     NTSTATUS ret;
 622
 623     SERVER_START_REQ( open_thread )
 624     {
 625         req->tid        = HandleToULong(id->UniqueThread);
 626         req->access     = access;
 627         req->attributes = attr ? attr->Attributes : 0;
 628         ret = wine_server_call( req );
 629         *handle = wine_server_ptr_handle( reply->handle );
 630     }
 631     SERVER_END_REQ;
 632     return ret;
 633 }
 634
 635
 636 /******************************************************************************
 637  *              NtSuspendThread   (NTDLL.@)
 638  *              ZwSuspendThread   (NTDLL.@)
 639  */
 640 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 641 {
 642     NTSTATUS ret;
 643
 644     SERVER_START_REQ( suspend_thread )
 645     {
 646         req->handle = wine_server_obj_handle( handle );
 647         if (!(ret = wine_server_call( req ))) *count = reply->count;
 648     }
 649     SERVER_END_REQ;
 650     return ret;
 651 }
 652
 653
 654 /******************************************************************************
 655  *              NtResumeThread   (NTDLL.@)
 656  *              ZwResumeThread   (NTDLL.@)
 657  */
 658 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 659 {
 660     NTSTATUS ret;
 661
 662     SERVER_START_REQ( resume_thread )
 663     {
 664         req->handle = wine_server_obj_handle( handle );
 665         if (!(ret = wine_server_call( req ))) *count = reply->count;
 666     }
 667     SERVER_END_REQ;
 668     return ret;
 669 }
 670
 671
 672 /******************************************************************************
 673  *              NtAlertResumeThread   (NTDLL.@)
 674  *              ZwAlertResumeThread   (NTDLL.@)
 675  */
 676 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
 677 {
 678     FIXME( "stub: should alert thread %p\n", handle );
 679     return NtResumeThread( handle, count );
 680 }
 681
 682
 683 /******************************************************************************
 684  *              NtAlertThread   (NTDLL.@)
 685  *              ZwAlertThread   (NTDLL.@)
 686  */
 687 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
 688 {
 689     FIXME( "stub: %p\n", handle );
 690     return STATUS_NOT_IMPLEMENTED;
 691 }
 692
 693
 694 /******************************************************************************
 695  *              NtTerminateThread  (NTDLL.@)
 696  *              ZwTerminateThread  (NTDLL.@)
 697  */
 698 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 699 {
 700     NTSTATUS ret;
 701     BOOL self, last;
 702
 703     SERVER_START_REQ( terminate_thread )
 704     {
 705         req->handle    = wine_server_obj_handle( handle );
 706         req->exit_code = exit_code;
 707         ret = wine_server_call( req );
 708         self = !ret && reply->self;
 709         last = reply->last;
 710     }
 711     SERVER_END_REQ;
 712
 713     if (self)
 714     {
 715         if (last) _exit( exit_code );
 716         else abort_thread( exit_code );
 717     }
 718     return ret;
 719 }
 720
 721
 722 /******************************************************************************
 723  *              NtQueueApcThread  (NTDLL.@)
 724  */
 725 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 726                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 727 {
 728     NTSTATUS ret;
 729     SERVER_START_REQ( queue_apc )
 730     {
 731         req->handle = wine_server_obj_handle( handle );
 732         if (func)
 733         {
 734             req->call.type         = APC_USER;
 735             req->call.user.func    = wine_server_client_ptr( func );
 736             req->call.user.args[0] = arg1;
 737             req->call.user.args[1] = arg2;
 738             req->call.user.args[2] = arg3;
 739         }
 740         else req->call.type = APC_NONE;  /* wake up only */
 741         ret = wine_server_call( req );
 742     }
 743     SERVER_END_REQ;
 744     return ret;
 745 }
 746
 747
 748 /***********************************************************************
 749  *              NtSetContextThread  (NTDLL.@)
 750  *              ZwSetContextThread  (NTDLL.@)
 751  */
 752 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 753 {
 754     NTSTATUS ret;
 755     DWORD dummy, i;
 756     BOOL self = FALSE;
 757
 758 #ifdef __i386__
 759     /* on i386 debug registers always require a server call */
 760     self = (handle == GetCurrentThread());
 761     if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
 762     {
 763         struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 764         self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 &&
 765                 regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 &&
 766                 regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7);
 767     }
 768 #endif
 769
 770     if (!self)
 771     {
 772         context_t server_context;
 773
 774         context_to_server( &server_context, context );
 775
 776         SERVER_START_REQ( set_thread_context )
 777         {
 778             req->handle  = wine_server_obj_handle( handle );
 779             req->suspend = 0;
 780             wine_server_add_data( req, &server_context, sizeof(server_context) );
 781             ret = wine_server_call( req );
 782             self = reply->self;
 783         }
 784         SERVER_END_REQ;
 785
 786         if (ret == STATUS_PENDING)
 787         {
 788             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 789             {
 790                 for (i = 0; i < 100; i++)
 791                 {
 792                     SERVER_START_REQ( set_thread_context )
 793                     {
 794                         req->handle  = wine_server_obj_handle( handle );
 795                         req->suspend = 0;
 796                         wine_server_add_data( req, &server_context, sizeof(server_context) );
 797                         ret = wine_server_call( req );
 798                     }
 799                     SERVER_END_REQ;
 800                     if (ret == STATUS_PENDING)
 801                     {
 802                         LARGE_INTEGER timeout;
 803                         timeout.QuadPart = -10000;
 804                         NtDelayExecution( FALSE, &timeout );
 805                     }
 806                     else break;
 807                 }
 808                 NtResumeThread( handle, &dummy );
 809             }
 810             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 811         }
 812
 813         if (ret) return ret;
 814     }
 815
 816     if (self) set_cpu_context( context );
 817     return STATUS_SUCCESS;
 818 }
 819
 820
 821 /* convert CPU-specific flags to generic server flags */
 822 static inline unsigned int get_server_context_flags( DWORD flags )
 823 {
 824     unsigned int ret = 0;
 825
 826     flags &= 0x3f;  /* mask CPU id flags */
 827     if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
 828     if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
 829 #ifdef CONTEXT_SEGMENTS
 830     if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
 831 #endif
 832 #ifdef CONTEXT_FLOATING_POINT
 833     if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
 834 #endif
 835 #ifdef CONTEXT_DEBUG_REGISTERS
 836     if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
 837 #endif
 838 #ifdef CONTEXT_EXTENDED_REGISTERS
 839     if (flags & CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS;
 840 #endif
 841     return ret;
 842 }
 843
 844 /***********************************************************************
 845  *              NtGetContextThread  (NTDLL.@)
 846  *              ZwGetContextThread  (NTDLL.@)
 847  */
 848 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
 849 {
 850     NTSTATUS ret;
 851     DWORD dummy, i;
 852     DWORD needed_flags = context->ContextFlags;
 853     BOOL self = (handle == GetCurrentThread());
 854
 855 #ifdef __i386__
 856     /* on i386 debug registers always require a server call */
 857     if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
 858 #endif
 859
 860     if (!self)
 861     {
 862         unsigned int server_flags = get_server_context_flags( context->ContextFlags );
 863         context_t server_context;
 864
 865         SERVER_START_REQ( get_thread_context )
 866         {
 867             req->handle  = wine_server_obj_handle( handle );
 868             req->flags   = server_flags;
 869             req->suspend = 0;
 870             wine_server_set_reply( req, &server_context, sizeof(server_context) );
 871             ret = wine_server_call( req );
 872             self = reply->self;
 873         }
 874         SERVER_END_REQ;
 875
 876         if (ret == STATUS_PENDING)
 877         {
 878             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 879             {
 880                 for (i = 0; i < 100; i++)
 881                 {
 882                     SERVER_START_REQ( get_thread_context )
 883                     {
 884                         req->handle  = wine_server_obj_handle( handle );
 885                         req->flags   = server_flags;
 886                         req->suspend = 0;
 887                         wine_server_set_reply( req, &server_context, sizeof(server_context) );
 888                         ret = wine_server_call( req );
 889                     }
 890                     SERVER_END_REQ;
 891                     if (ret == STATUS_PENDING)
 892                     {
 893                         LARGE_INTEGER timeout;
 894                         timeout.QuadPart = -10000;
 895                         NtDelayExecution( FALSE, &timeout );
 896                     }
 897                     else break;
 898                 }
 899                 NtResumeThread( handle, &dummy );
 900             }
 901             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 902         }
 903         if (!ret) ret = context_from_server( context, &server_context );
 904         if (ret) return ret;
 905         needed_flags &= ~context->ContextFlags;
 906     }
 907
 908     if (self)
 909     {
 910         if (needed_flags)
 911         {
 912             CONTEXT ctx;
 913             RtlCaptureContext( &ctx );
 914             copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
 915             context->ContextFlags |= ctx.ContextFlags & needed_flags;
 916         }
 917 #ifdef __i386__
 918         /* update the cached version of the debug registers */
 919         if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
 920         {
 921             struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 922             regs->dr0 = context->Dr0;
 923             regs->dr1 = context->Dr1;
 924             regs->dr2 = context->Dr2;
 925             regs->dr3 = context->Dr3;
 926             regs->dr6 = context->Dr6;
 927             regs->dr7 = context->Dr7;
 928         }
 929 #endif
 930     }
 931     return STATUS_SUCCESS;
 932 }
 933
 934
 935 /******************************************************************************
 936  *              NtQueryInformationThread  (NTDLL.@)
 937  *              ZwQueryInformationThread  (NTDLL.@)
 938  */
 939 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
 940                                           void *data, ULONG length, ULONG *ret_len )
 941 {
 942     NTSTATUS status;
 943
 944     switch(class)
 945     {
 946     case ThreadBasicInformation:
 947         {
 948             THREAD_BASIC_INFORMATION info;
 949             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 950
 951             SERVER_START_REQ( get_thread_info )
 952             {
 953                 req->handle = wine_server_obj_handle( handle );
 954                 req->tid_in = 0;
 955                 if (!(status = wine_server_call( req )))
 956                 {
 957                     info.ExitStatus             = reply->exit_code;
 958                     info.TebBaseAddress         = wine_server_get_ptr( reply->teb );
 959                     info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
 960                     info.ClientId.UniqueThread  = ULongToHandle(reply->tid);
 961                     info.AffinityMask           = reply->affinity & affinity_mask;
 962                     info.Priority               = reply->priority;
 963                     info.BasePriority           = reply->priority;  /* FIXME */
 964                 }
 965             }
 966             SERVER_END_REQ;
 967             if (status == STATUS_SUCCESS)
 968             {
 969                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
 970                 if (ret_len) *ret_len = min( length, sizeof(info) );
 971             }
 972         }
 973         return status;
 974     case ThreadAffinityMask:
 975         {
 976             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 977             ULONG_PTR affinity = 0;
 978
 979             SERVER_START_REQ( get_thread_info )
 980             {
 981                 req->handle = wine_server_obj_handle( handle );
 982                 req->tid_in = 0;
 983                 if (!(status = wine_server_call( req )))
 984                     affinity = reply->affinity & affinity_mask;
 985             }
 986             SERVER_END_REQ;
 987             if (status == STATUS_SUCCESS)
 988             {
 989                 if (data) memcpy( data, &affinity, min( length, sizeof(affinity) ));
 990                 if (ret_len) *ret_len = min( length, sizeof(affinity) );
 991             }
 992         }
 993         return status;
 994     case ThreadTimes:
 995         {
 996             KERNEL_USER_TIMES   kusrt;
 997             /* We need to do a server call to get the creation time or exit time */
 998             /* This works on any thread */
 999             SERVER_START_REQ( get_thread_info )
1000             {
1001                 req->handle = wine_server_obj_handle( handle );
1002                 req->tid_in = 0;
1003                 status = wine_server_call( req );
1004                 if (status == STATUS_SUCCESS)
1005                 {
1006                     kusrt.CreateTime.QuadPart = reply->creation_time;
1007                     kusrt.ExitTime.QuadPart = reply->exit_time;
1008                 }
1009             }
1010             SERVER_END_REQ;
1011             if (status == STATUS_SUCCESS)
1012             {
1013                 /* We call times(2) for kernel time or user time */
1014                 /* We can only (portably) do this for the current thread */
1015                 if (handle == GetCurrentThread())
1016                 {
1017                     struct tms time_buf;
1018                     long clocks_per_sec = sysconf(_SC_CLK_TCK);
1019
1020                     times(&time_buf);
1021                     kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
1022                     kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
1023                 }
1024                 else
1025                 {
1026                     static BOOL reported = FALSE;
1027
1028                     kusrt.KernelTime.QuadPart = 0;
1029                     kusrt.UserTime.QuadPart = 0;
1030                     if (reported)
1031                         TRACE("Cannot get kerneltime or usertime of other threads\n");
1032                     else
1033                     {
1034                         FIXME("Cannot get kerneltime or usertime of other threads\n");
1035                         reported = TRUE;
1036                     }
1037                 }
1038                 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
1039                 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
1040             }
1041         }
1042         return status;
1043     case ThreadDescriptorTableEntry:
1044         {
1045 #ifdef __i386__
1046             THREAD_DESCRIPTOR_INFORMATION*      tdi = data;
1047             if (length < sizeof(*tdi))
1048                 status = STATUS_INFO_LENGTH_MISMATCH;
1049             else if (!(tdi->Selector & 4))  /* GDT selector */
1050             {
1051                 unsigned sel = tdi->Selector & ~3;  /* ignore RPL */
1052                 status = STATUS_SUCCESS;
1053                 if (!sel)  /* null selector */
1054                     memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
1055                 else
1056                 {
1057                     tdi->Entry.BaseLow                   = 0;
1058                     tdi->Entry.HighWord.Bits.BaseMid     = 0;
1059                     tdi->Entry.HighWord.Bits.BaseHi      = 0;
1060                     tdi->Entry.LimitLow                  = 0xffff;
1061                     tdi->Entry.HighWord.Bits.LimitHi     = 0xf;
1062                     tdi->Entry.HighWord.Bits.Dpl         = 3;
1063                     tdi->Entry.HighWord.Bits.Sys         = 0;
1064                     tdi->Entry.HighWord.Bits.Pres        = 1;
1065                     tdi->Entry.HighWord.Bits.Granularity = 1;
1066                     tdi->Entry.HighWord.Bits.Default_Big = 1;
1067                     tdi->Entry.HighWord.Bits.Type        = 0x12;
1068                     /* it has to be one of the system GDT selectors */
1069                     if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
1070                     {
1071                         if (sel == (wine_get_cs() & ~3))
1072                             tdi->Entry.HighWord.Bits.Type |= 8;  /* code segment */
1073                         else status = STATUS_ACCESS_DENIED;
1074                     }
1075                 }
1076             }
1077             else
1078             {
1079                 SERVER_START_REQ( get_selector_entry )
1080                 {
1081                     req->handle = wine_server_obj_handle( handle );
1082                     req->entry = tdi->Selector >> 3;
1083                     status = wine_server_call( req );
1084                     if (!status)
1085                     {
1086                         if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1087                             status = STATUS_ACCESS_VIOLATION;
1088                         else
1089                         {
1090                             wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1091                             wine_ldt_set_limit( &tdi->Entry, reply->limit );
1092                             wine_ldt_set_flags( &tdi->Entry, reply->flags );
1093                         }
1094                     }
1095                 }
1096                 SERVER_END_REQ;
1097             }
1098             if (status == STATUS_SUCCESS && ret_len)
1099                 /* yes, that's a bit strange, but it's the way it is */
1100                 *ret_len = sizeof(LDT_ENTRY);
1101 #else
1102             status = STATUS_NOT_IMPLEMENTED;
1103 #endif
1104             return status;
1105         }
1106     case ThreadAmILastThread:
1107         {
1108             SERVER_START_REQ(get_thread_info)
1109             {
1110                 req->handle = wine_server_obj_handle( handle );
1111                 req->tid_in = 0;
1112                 status = wine_server_call( req );
1113                 if (status == STATUS_SUCCESS)
1114                 {
1115                     BOOLEAN last = reply->last;
1116                     if (data) memcpy( data, &last, min( length, sizeof(last) ));
1117                     if (ret_len) *ret_len = min( length, sizeof(last) );
1118                 }
1119             }
1120             SERVER_END_REQ;
1121             return status;
1122         }
1123     case ThreadPriority:
1124     case ThreadBasePriority:
1125     case ThreadImpersonationToken:
1126     case ThreadEnableAlignmentFaultFixup:
1127     case ThreadEventPair_Reusable:
1128     case ThreadQuerySetWin32StartAddress:
1129     case ThreadZeroTlsCell:
1130     case ThreadPerformanceCount:
1131     case ThreadIdealProcessor:
1132     case ThreadPriorityBoost:
1133     case ThreadSetTlsArrayAddress:
1134     case ThreadIsIoPending:
1135     default:
1136         FIXME( "info class %d not supported yet\n", class );
1137         return STATUS_NOT_IMPLEMENTED;
1138     }
1139 }
1140
1141
1142 /******************************************************************************
1143  *              NtSetInformationThread  (NTDLL.@)
1144  *              ZwSetInformationThread  (NTDLL.@)
1145  */
1146 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1147                                         LPCVOID data, ULONG length )
1148 {
1149     NTSTATUS status;
1150     switch(class)
1151     {
1152     case ThreadZeroTlsCell:
1153         if (handle == GetCurrentThread())
1154         {
1155             LIST_ENTRY *entry;
1156             DWORD index;
1157
1158             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1159             index = *(const DWORD *)data;
1160             if (index < TLS_MINIMUM_AVAILABLE)
1161             {
1162                 RtlAcquirePebLock();
1163                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1164                 {
1165                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1166                     teb->TlsSlots[index] = 0;
1167                 }
1168                 RtlReleasePebLock();
1169             }
1170             else
1171             {
1172                 index -= TLS_MINIMUM_AVAILABLE;
1173                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1174                     return STATUS_INVALID_PARAMETER;
1175                 RtlAcquirePebLock();
1176                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1177                 {
1178                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1179                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1180                 }
1181                 RtlReleasePebLock();
1182             }
1183             return STATUS_SUCCESS;
1184         }
1185         FIXME( "ZeroTlsCell not supported on other threads\n" );
1186         return STATUS_NOT_IMPLEMENTED;
1187
1188     case ThreadImpersonationToken:
1189         {
1190             const HANDLE *phToken = data;
1191             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1192             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1193             SERVER_START_REQ( set_thread_info )
1194             {
1195                 req->handle   = wine_server_obj_handle( handle );
1196                 req->token    = wine_server_obj_handle( *phToken );
1197                 req->mask     = SET_THREAD_INFO_TOKEN;
1198                 status = wine_server_call( req );
1199             }
1200             SERVER_END_REQ;
1201         }
1202         return status;
1203     case ThreadBasePriority:
1204         {
1205             const DWORD *pprio = data;
1206             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1207             SERVER_START_REQ( set_thread_info )
1208             {
1209                 req->handle   = wine_server_obj_handle( handle );
1210                 req->priority = *pprio;
1211                 req->mask     = SET_THREAD_INFO_PRIORITY;
1212                 status = wine_server_call( req );
1213             }
1214             SERVER_END_REQ;
1215         }
1216         return status;
1217     case ThreadAffinityMask:
1218         {
1219             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1220             const ULONG_PTR *paff = data;
1221             if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER;
1222             if (*paff & ~affinity_mask) return STATUS_INVALID_PARAMETER;
1223             SERVER_START_REQ( set_thread_info )
1224             {
1225                 req->handle   = wine_server_obj_handle( handle );
1226                 req->affinity = *paff;
1227                 req->mask     = SET_THREAD_INFO_AFFINITY;
1228                 status = wine_server_call( req );
1229             }
1230             SERVER_END_REQ;
1231         }
1232         return status;
1233     case ThreadBasicInformation:
1234     case ThreadTimes:
1235     case ThreadPriority:
1236     case ThreadDescriptorTableEntry:
1237     case ThreadEnableAlignmentFaultFixup:
1238     case ThreadEventPair_Reusable:
1239     case ThreadQuerySetWin32StartAddress:
1240     case ThreadPerformanceCount:
1241     case ThreadAmILastThread:
1242     case ThreadIdealProcessor:
1243     case ThreadPriorityBoost:
1244     case ThreadSetTlsArrayAddress:
1245     case ThreadIsIoPending:
1246     default:
1247         FIXME( "info class %d not supported yet\n", class );
1248         return STATUS_NOT_IMPLEMENTED;
1249     }
1250 }