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  *           terminate_thread
 368  */
 369 void terminate_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;
 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     }
 710     SERVER_END_REQ;
 711
 712     if (self) abort_thread( exit_code );
 713     return ret;
 714 }
 715
 716
 717 /******************************************************************************
 718  *              NtQueueApcThread  (NTDLL.@)
 719  */
 720 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 721                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 722 {
 723     NTSTATUS ret;
 724     SERVER_START_REQ( queue_apc )
 725     {
 726         req->handle = wine_server_obj_handle( handle );
 727         if (func)
 728         {
 729             req->call.type         = APC_USER;
 730             req->call.user.func    = wine_server_client_ptr( func );
 731             req->call.user.args[0] = arg1;
 732             req->call.user.args[1] = arg2;
 733             req->call.user.args[2] = arg3;
 734         }
 735         else req->call.type = APC_NONE;  /* wake up only */
 736         ret = wine_server_call( req );
 737     }
 738     SERVER_END_REQ;
 739     return ret;
 740 }
 741
 742
 743 /***********************************************************************
 744  *              NtSetContextThread  (NTDLL.@)
 745  *              ZwSetContextThread  (NTDLL.@)
 746  */
 747 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 748 {
 749     NTSTATUS ret;
 750     DWORD dummy, i;
 751     BOOL self = FALSE;
 752
 753 #ifdef __i386__
 754     /* on i386 debug registers always require a server call */
 755     self = (handle == GetCurrentThread());
 756     if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
 757     {
 758         struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 759         self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 &&
 760                 regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 &&
 761                 regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7);
 762     }
 763 #endif
 764
 765     if (!self)
 766     {
 767         context_t server_context;
 768
 769         context_to_server( &server_context, context );
 770
 771         SERVER_START_REQ( set_thread_context )
 772         {
 773             req->handle  = wine_server_obj_handle( handle );
 774             req->suspend = 0;
 775             wine_server_add_data( req, &server_context, sizeof(server_context) );
 776             ret = wine_server_call( req );
 777             self = reply->self;
 778         }
 779         SERVER_END_REQ;
 780
 781         if (ret == STATUS_PENDING)
 782         {
 783             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 784             {
 785                 for (i = 0; i < 100; i++)
 786                 {
 787                     SERVER_START_REQ( set_thread_context )
 788                     {
 789                         req->handle  = wine_server_obj_handle( handle );
 790                         req->suspend = 0;
 791                         wine_server_add_data( req, &server_context, sizeof(server_context) );
 792                         ret = wine_server_call( req );
 793                     }
 794                     SERVER_END_REQ;
 795                     if (ret == STATUS_PENDING)
 796                     {
 797                         LARGE_INTEGER timeout;
 798                         timeout.QuadPart = -10000;
 799                         NtDelayExecution( FALSE, &timeout );
 800                     }
 801                     else break;
 802                 }
 803                 NtResumeThread( handle, &dummy );
 804             }
 805             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 806         }
 807
 808         if (ret) return ret;
 809     }
 810
 811     if (self) set_cpu_context( context );
 812     return STATUS_SUCCESS;
 813 }
 814
 815
 816 /* convert CPU-specific flags to generic server flags */
 817 static inline unsigned int get_server_context_flags( DWORD flags )
 818 {
 819     unsigned int ret = 0;
 820
 821     flags &= 0x3f;  /* mask CPU id flags */
 822     if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
 823     if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
 824 #ifdef CONTEXT_SEGMENTS
 825     if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
 826 #endif
 827 #ifdef CONTEXT_FLOATING_POINT
 828     if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
 829 #endif
 830 #ifdef CONTEXT_DEBUG_REGISTERS
 831     if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
 832 #endif
 833 #ifdef CONTEXT_EXTENDED_REGISTERS
 834     if (flags & CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS;
 835 #endif
 836     return ret;
 837 }
 838
 839 /***********************************************************************
 840  *              NtGetContextThread  (NTDLL.@)
 841  *              ZwGetContextThread  (NTDLL.@)
 842  */
 843 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
 844 {
 845     NTSTATUS ret;
 846     DWORD dummy, i;
 847     DWORD needed_flags = context->ContextFlags;
 848     BOOL self = (handle == GetCurrentThread());
 849
 850 #ifdef __i386__
 851     /* on i386 debug registers always require a server call */
 852     if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
 853 #endif
 854
 855     if (!self)
 856     {
 857         unsigned int server_flags = get_server_context_flags( context->ContextFlags );
 858         context_t server_context;
 859
 860         SERVER_START_REQ( get_thread_context )
 861         {
 862             req->handle  = wine_server_obj_handle( handle );
 863             req->flags   = server_flags;
 864             req->suspend = 0;
 865             wine_server_set_reply( req, &server_context, sizeof(server_context) );
 866             ret = wine_server_call( req );
 867             self = reply->self;
 868         }
 869         SERVER_END_REQ;
 870
 871         if (ret == STATUS_PENDING)
 872         {
 873             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 874             {
 875                 for (i = 0; i < 100; i++)
 876                 {
 877                     SERVER_START_REQ( get_thread_context )
 878                     {
 879                         req->handle  = wine_server_obj_handle( handle );
 880                         req->flags   = server_flags;
 881                         req->suspend = 0;
 882                         wine_server_set_reply( req, &server_context, sizeof(server_context) );
 883                         ret = wine_server_call( req );
 884                     }
 885                     SERVER_END_REQ;
 886                     if (ret == STATUS_PENDING)
 887                     {
 888                         LARGE_INTEGER timeout;
 889                         timeout.QuadPart = -10000;
 890                         NtDelayExecution( FALSE, &timeout );
 891                     }
 892                     else break;
 893                 }
 894                 NtResumeThread( handle, &dummy );
 895             }
 896             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 897         }
 898         if (!ret) ret = context_from_server( context, &server_context );
 899         if (ret) return ret;
 900         needed_flags &= ~context->ContextFlags;
 901     }
 902
 903     if (self)
 904     {
 905         if (needed_flags)
 906         {
 907             CONTEXT ctx;
 908             RtlCaptureContext( &ctx );
 909             copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
 910             context->ContextFlags |= ctx.ContextFlags & needed_flags;
 911         }
 912 #ifdef __i386__
 913         /* update the cached version of the debug registers */
 914         if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
 915         {
 916             struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 917             regs->dr0 = context->Dr0;
 918             regs->dr1 = context->Dr1;
 919             regs->dr2 = context->Dr2;
 920             regs->dr3 = context->Dr3;
 921             regs->dr6 = context->Dr6;
 922             regs->dr7 = context->Dr7;
 923         }
 924 #endif
 925     }
 926     return STATUS_SUCCESS;
 927 }
 928
 929
 930 /******************************************************************************
 931  *              NtQueryInformationThread  (NTDLL.@)
 932  *              ZwQueryInformationThread  (NTDLL.@)
 933  */
 934 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
 935                                           void *data, ULONG length, ULONG *ret_len )
 936 {
 937     NTSTATUS status;
 938
 939     switch(class)
 940     {
 941     case ThreadBasicInformation:
 942         {
 943             THREAD_BASIC_INFORMATION info;
 944             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 945
 946             SERVER_START_REQ( get_thread_info )
 947             {
 948                 req->handle = wine_server_obj_handle( handle );
 949                 req->tid_in = 0;
 950                 if (!(status = wine_server_call( req )))
 951                 {
 952                     info.ExitStatus             = reply->exit_code;
 953                     info.TebBaseAddress         = wine_server_get_ptr( reply->teb );
 954                     info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
 955                     info.ClientId.UniqueThread  = ULongToHandle(reply->tid);
 956                     info.AffinityMask           = reply->affinity & affinity_mask;
 957                     info.Priority               = reply->priority;
 958                     info.BasePriority           = reply->priority;  /* FIXME */
 959                 }
 960             }
 961             SERVER_END_REQ;
 962             if (status == STATUS_SUCCESS)
 963             {
 964                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
 965                 if (ret_len) *ret_len = min( length, sizeof(info) );
 966             }
 967         }
 968         return status;
 969     case ThreadAffinityMask:
 970         {
 971             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 972             ULONG_PTR affinity = 0;
 973
 974             SERVER_START_REQ( get_thread_info )
 975             {
 976                 req->handle = wine_server_obj_handle( handle );
 977                 req->tid_in = 0;
 978                 if (!(status = wine_server_call( req )))
 979                     affinity = reply->affinity & affinity_mask;
 980             }
 981             SERVER_END_REQ;
 982             if (status == STATUS_SUCCESS)
 983             {
 984                 if (data) memcpy( data, &affinity, min( length, sizeof(affinity) ));
 985                 if (ret_len) *ret_len = min( length, sizeof(affinity) );
 986             }
 987         }
 988         return status;
 989     case ThreadTimes:
 990         {
 991             KERNEL_USER_TIMES   kusrt;
 992             /* We need to do a server call to get the creation time or exit time */
 993             /* This works on any thread */
 994             SERVER_START_REQ( get_thread_info )
 995             {
 996                 req->handle = wine_server_obj_handle( handle );
 997                 req->tid_in = 0;
 998                 status = wine_server_call( req );
 999                 if (status == STATUS_SUCCESS)
1000                 {
1001                     kusrt.CreateTime.QuadPart = reply->creation_time;
1002                     kusrt.ExitTime.QuadPart = reply->exit_time;
1003                 }
1004             }
1005             SERVER_END_REQ;
1006             if (status == STATUS_SUCCESS)
1007             {
1008                 /* We call times(2) for kernel time or user time */
1009                 /* We can only (portably) do this for the current thread */
1010                 if (handle == GetCurrentThread())
1011                 {
1012                     struct tms time_buf;
1013                     long clocks_per_sec = sysconf(_SC_CLK_TCK);
1014
1015                     times(&time_buf);
1016                     kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
1017                     kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
1018                 }
1019                 else
1020                 {
1021                     static BOOL reported = FALSE;
1022
1023                     kusrt.KernelTime.QuadPart = 0;
1024                     kusrt.UserTime.QuadPart = 0;
1025                     if (reported)
1026                         TRACE("Cannot get kerneltime or usertime of other threads\n");
1027                     else
1028                     {
1029                         FIXME("Cannot get kerneltime or usertime of other threads\n");
1030                         reported = TRUE;
1031                     }
1032                 }
1033                 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
1034                 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
1035             }
1036         }
1037         return status;
1038     case ThreadDescriptorTableEntry:
1039         {
1040 #ifdef __i386__
1041             THREAD_DESCRIPTOR_INFORMATION*      tdi = data;
1042             if (length < sizeof(*tdi))
1043                 status = STATUS_INFO_LENGTH_MISMATCH;
1044             else if (!(tdi->Selector & 4))  /* GDT selector */
1045             {
1046                 unsigned sel = tdi->Selector & ~3;  /* ignore RPL */
1047                 status = STATUS_SUCCESS;
1048                 if (!sel)  /* null selector */
1049                     memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
1050                 else
1051                 {
1052                     tdi->Entry.BaseLow                   = 0;
1053                     tdi->Entry.HighWord.Bits.BaseMid     = 0;
1054                     tdi->Entry.HighWord.Bits.BaseHi      = 0;
1055                     tdi->Entry.LimitLow                  = 0xffff;
1056                     tdi->Entry.HighWord.Bits.LimitHi     = 0xf;
1057                     tdi->Entry.HighWord.Bits.Dpl         = 3;
1058                     tdi->Entry.HighWord.Bits.Sys         = 0;
1059                     tdi->Entry.HighWord.Bits.Pres        = 1;
1060                     tdi->Entry.HighWord.Bits.Granularity = 1;
1061                     tdi->Entry.HighWord.Bits.Default_Big = 1;
1062                     tdi->Entry.HighWord.Bits.Type        = 0x12;
1063                     /* it has to be one of the system GDT selectors */
1064                     if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
1065                     {
1066                         if (sel == (wine_get_cs() & ~3))
1067                             tdi->Entry.HighWord.Bits.Type |= 8;  /* code segment */
1068                         else status = STATUS_ACCESS_DENIED;
1069                     }
1070                 }
1071             }
1072             else
1073             {
1074                 SERVER_START_REQ( get_selector_entry )
1075                 {
1076                     req->handle = wine_server_obj_handle( handle );
1077                     req->entry = tdi->Selector >> 3;
1078                     status = wine_server_call( req );
1079                     if (!status)
1080                     {
1081                         if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1082                             status = STATUS_ACCESS_VIOLATION;
1083                         else
1084                         {
1085                             wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1086                             wine_ldt_set_limit( &tdi->Entry, reply->limit );
1087                             wine_ldt_set_flags( &tdi->Entry, reply->flags );
1088                         }
1089                     }
1090                 }
1091                 SERVER_END_REQ;
1092             }
1093             if (status == STATUS_SUCCESS && ret_len)
1094                 /* yes, that's a bit strange, but it's the way it is */
1095                 *ret_len = sizeof(LDT_ENTRY);
1096 #else
1097             status = STATUS_NOT_IMPLEMENTED;
1098 #endif
1099             return status;
1100         }
1101     case ThreadAmILastThread:
1102         {
1103             SERVER_START_REQ(get_thread_info)
1104             {
1105                 req->handle = wine_server_obj_handle( handle );
1106                 req->tid_in = 0;
1107                 status = wine_server_call( req );
1108                 if (status == STATUS_SUCCESS)
1109                 {
1110                     BOOLEAN last = reply->last;
1111                     if (data) memcpy( data, &last, min( length, sizeof(last) ));
1112                     if (ret_len) *ret_len = min( length, sizeof(last) );
1113                 }
1114             }
1115             SERVER_END_REQ;
1116             return status;
1117         }
1118     case ThreadPriority:
1119     case ThreadBasePriority:
1120     case ThreadImpersonationToken:
1121     case ThreadEnableAlignmentFaultFixup:
1122     case ThreadEventPair_Reusable:
1123     case ThreadQuerySetWin32StartAddress:
1124     case ThreadZeroTlsCell:
1125     case ThreadPerformanceCount:
1126     case ThreadIdealProcessor:
1127     case ThreadPriorityBoost:
1128     case ThreadSetTlsArrayAddress:
1129     case ThreadIsIoPending:
1130     default:
1131         FIXME( "info class %d not supported yet\n", class );
1132         return STATUS_NOT_IMPLEMENTED;
1133     }
1134 }
1135
1136
1137 /******************************************************************************
1138  *              NtSetInformationThread  (NTDLL.@)
1139  *              ZwSetInformationThread  (NTDLL.@)
1140  */
1141 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1142                                         LPCVOID data, ULONG length )
1143 {
1144     NTSTATUS status;
1145     switch(class)
1146     {
1147     case ThreadZeroTlsCell:
1148         if (handle == GetCurrentThread())
1149         {
1150             LIST_ENTRY *entry;
1151             DWORD index;
1152
1153             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1154             index = *(const DWORD *)data;
1155             if (index < TLS_MINIMUM_AVAILABLE)
1156             {
1157                 RtlAcquirePebLock();
1158                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1159                 {
1160                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1161                     teb->TlsSlots[index] = 0;
1162                 }
1163                 RtlReleasePebLock();
1164             }
1165             else
1166             {
1167                 index -= TLS_MINIMUM_AVAILABLE;
1168                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1169                     return STATUS_INVALID_PARAMETER;
1170                 RtlAcquirePebLock();
1171                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1172                 {
1173                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1174                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1175                 }
1176                 RtlReleasePebLock();
1177             }
1178             return STATUS_SUCCESS;
1179         }
1180         FIXME( "ZeroTlsCell not supported on other threads\n" );
1181         return STATUS_NOT_IMPLEMENTED;
1182
1183     case ThreadImpersonationToken:
1184         {
1185             const HANDLE *phToken = data;
1186             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1187             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1188             SERVER_START_REQ( set_thread_info )
1189             {
1190                 req->handle   = wine_server_obj_handle( handle );
1191                 req->token    = wine_server_obj_handle( *phToken );
1192                 req->mask     = SET_THREAD_INFO_TOKEN;
1193                 status = wine_server_call( req );
1194             }
1195             SERVER_END_REQ;
1196         }
1197         return status;
1198     case ThreadBasePriority:
1199         {
1200             const DWORD *pprio = data;
1201             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1202             SERVER_START_REQ( set_thread_info )
1203             {
1204                 req->handle   = wine_server_obj_handle( handle );
1205                 req->priority = *pprio;
1206                 req->mask     = SET_THREAD_INFO_PRIORITY;
1207                 status = wine_server_call( req );
1208             }
1209             SERVER_END_REQ;
1210         }
1211         return status;
1212     case ThreadAffinityMask:
1213         {
1214             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1215             const ULONG_PTR *paff = data;
1216             if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER;
1217             if (*paff & ~affinity_mask) return STATUS_INVALID_PARAMETER;
1218             SERVER_START_REQ( set_thread_info )
1219             {
1220                 req->handle   = wine_server_obj_handle( handle );
1221                 req->affinity = *paff;
1222                 req->mask     = SET_THREAD_INFO_AFFINITY;
1223                 status = wine_server_call( req );
1224             }
1225             SERVER_END_REQ;
1226         }
1227         return status;
1228     case ThreadBasicInformation:
1229     case ThreadTimes:
1230     case ThreadPriority:
1231     case ThreadDescriptorTableEntry:
1232     case ThreadEnableAlignmentFaultFixup:
1233     case ThreadEventPair_Reusable:
1234     case ThreadQuerySetWin32StartAddress:
1235     case ThreadPerformanceCount:
1236     case ThreadAmILastThread:
1237     case ThreadIdealProcessor:
1238     case ThreadPriorityBoost:
1239     case ThreadSetTlsArrayAddress:
1240     case ThreadIsIoPending:
1241     default:
1242         FIXME( "info class %d not supported yet\n", class );
1243         return STATUS_NOT_IMPLEMENTED;
1244     }
1245 }