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 #ifdef HAVE_SYS_SYSCALL_H
  34 #include <sys/syscall.h>
  35 #endif
  36
  37 #define NONAMELESSUNION
  38 #include "ntstatus.h"
  39 #define WIN32_NO_STATUS
  40 #include "winternl.h"
  41 #include "wine/library.h"
  42 #include "wine/server.h"
  43 #include "wine/debug.h"
  44 #include "ntdll_misc.h"
  45 #include "ddk/wdm.h"
  46 #include "wine/exception.h"
  47
  48 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  49 WINE_DECLARE_DEBUG_CHANNEL(relay);
  50
  51 struct _KUSER_SHARED_DATA *user_shared_data = NULL;
  52
  53 PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter = NULL;
  54
  55 /* info passed to a starting thread */
  56 struct startup_info
  57 {
  58     TEB                            *teb;
  59     PRTL_THREAD_START_ROUTINE       entry_point;
  60     void                           *entry_arg;
  61 };
  62
  63 static PEB *peb;
  64 static PEB_LDR_DATA ldr;
  65 static RTL_USER_PROCESS_PARAMETERS params;  /* default parameters if no parent */
  66 static WCHAR current_dir[MAX_NT_PATH_LENGTH];
  67 static RTL_BITMAP tls_bitmap;
  68 static RTL_BITMAP tls_expansion_bitmap;
  69 static RTL_BITMAP fls_bitmap;
  70 static LIST_ENTRY tls_links;
  71 static int nb_threads = 1;
  72
  73 /***********************************************************************
  74  *           get_unicode_string
  75  *
  76  * Copy a unicode string from the startup info.
  77  */
  78 static inline void get_unicode_string( UNICODE_STRING *str, WCHAR **src, WCHAR **dst, UINT len )
  79 {
  80     str->Buffer = *dst;
  81     str->Length = len;
  82     str->MaximumLength = len + sizeof(WCHAR);
  83     memcpy( str->Buffer, *src, len );
  84     str->Buffer[len / sizeof(WCHAR)] = 0;
  85     *src += len / sizeof(WCHAR);
  86     *dst += len / sizeof(WCHAR) + 1;
  87 }
  88
  89 /***********************************************************************
  90  *           init_user_process_params
  91  *
  92  * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
  93  */
  94 static NTSTATUS init_user_process_params( SIZE_T data_size, HANDLE *exe_file )
  95 {
  96     void *ptr;
  97     WCHAR *src, *dst;
  98     SIZE_T info_size, env_size, size, alloc_size;
  99     NTSTATUS status;
 100     startup_info_t *info;
 101     RTL_USER_PROCESS_PARAMETERS *params = NULL;
 102
 103     if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, data_size )))
 104         return STATUS_NO_MEMORY;
 105
 106     SERVER_START_REQ( get_startup_info )
 107     {
 108         wine_server_set_reply( req, info, data_size );
 109         if (!(status = wine_server_call( req )))
 110         {
 111             data_size = wine_server_reply_size( reply );
 112             info_size = reply->info_size;
 113             env_size  = data_size - info_size;
 114             *exe_file = wine_server_ptr_handle( reply->exe_file );
 115         }
 116     }
 117     SERVER_END_REQ;
 118     if (status != STATUS_SUCCESS) goto done;
 119
 120     size = sizeof(*params);
 121     size += MAX_NT_PATH_LENGTH * sizeof(WCHAR);
 122     size += info->dllpath_len + sizeof(WCHAR);
 123     size += info->imagepath_len + sizeof(WCHAR);
 124     size += info->cmdline_len + sizeof(WCHAR);
 125     size += info->title_len + sizeof(WCHAR);
 126     size += info->desktop_len + sizeof(WCHAR);
 127     size += info->shellinfo_len + sizeof(WCHAR);
 128     size += info->runtime_len + sizeof(WCHAR);
 129
 130     alloc_size = size;
 131     status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &alloc_size,
 132                                       MEM_COMMIT, PAGE_READWRITE );
 133     if (status != STATUS_SUCCESS) goto done;
 134
 135     NtCurrentTeb()->Peb->ProcessParameters = params;
 136     params->AllocationSize  = alloc_size;
 137     params->Size            = size;
 138     params->Flags           = PROCESS_PARAMS_FLAG_NORMALIZED;
 139     params->DebugFlags      = info->debug_flags;
 140     params->ConsoleHandle   = wine_server_ptr_handle( info->console );
 141     params->ConsoleFlags    = info->console_flags;
 142     params->hStdInput       = wine_server_ptr_handle( info->hstdin );
 143     params->hStdOutput      = wine_server_ptr_handle( info->hstdout );
 144     params->hStdError       = wine_server_ptr_handle( info->hstderr );
 145     params->dwX             = info->x;
 146     params->dwY             = info->y;
 147     params->dwXSize         = info->xsize;
 148     params->dwYSize         = info->ysize;
 149     params->dwXCountChars   = info->xchars;
 150     params->dwYCountChars   = info->ychars;
 151     params->dwFillAttribute = info->attribute;
 152     params->dwFlags         = info->flags;
 153     params->wShowWindow     = info->show;
 154
 155     src = (WCHAR *)(info + 1);
 156     dst = (WCHAR *)(params + 1);
 157
 158     /* current directory needs more space */
 159     get_unicode_string( &params->CurrentDirectory.DosPath, &src, &dst, info->curdir_len );
 160     params->CurrentDirectory.DosPath.MaximumLength = MAX_NT_PATH_LENGTH * sizeof(WCHAR);
 161     dst = (WCHAR *)(params + 1) + MAX_NT_PATH_LENGTH;
 162
 163     get_unicode_string( &params->DllPath, &src, &dst, info->dllpath_len );
 164     get_unicode_string( &params->ImagePathName, &src, &dst, info->imagepath_len );
 165     get_unicode_string( &params->CommandLine, &src, &dst, info->cmdline_len );
 166     get_unicode_string( &params->WindowTitle, &src, &dst, info->title_len );
 167     get_unicode_string( &params->Desktop, &src, &dst, info->desktop_len );
 168     get_unicode_string( &params->ShellInfo, &src, &dst, info->shellinfo_len );
 169
 170     /* runtime info isn't a real string */
 171     params->RuntimeInfo.Buffer = dst;
 172     params->RuntimeInfo.Length = params->RuntimeInfo.MaximumLength = info->runtime_len;
 173     memcpy( dst, src, info->runtime_len );
 174
 175     /* environment needs to be a separate memory block */
 176     ptr = NULL;
 177     alloc_size = max( 1, env_size );
 178     status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &alloc_size,
 179                                       MEM_COMMIT, PAGE_READWRITE );
 180     if (status != STATUS_SUCCESS) goto done;
 181     memcpy( ptr, (char *)info + info_size, env_size );
 182     params->Environment = ptr;
 183
 184 done:
 185     RtlFreeHeap( GetProcessHeap(), 0, info );
 186     return status;
 187 }
 188
 189 /***********************************************************************
 190  *           thread_init
 191  *
 192  * Setup the initial thread.
 193  *
 194  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 195  */
 196 HANDLE thread_init(void)
 197 {
 198     TEB *teb;
 199     void *addr;
 200     SIZE_T size, info_size;
 201     HANDLE exe_file = 0;
 202     LARGE_INTEGER now;
 203     NTSTATUS status;
 204     struct ntdll_thread_data *thread_data;
 205     static struct debug_info debug_info;  /* debug info for initial thread */
 206
 207     virtual_init();
 208
 209     /* reserve space for shared user data */
 210
 211     addr = (void *)0x7ffe0000;
 212     size = 0x10000;
 213     status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size,
 214                                       MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE );
 215     if (status)
 216     {
 217         MESSAGE( "wine: failed to map the shared user data: %08x\n", status );
 218         exit(1);
 219     }
 220     user_shared_data = addr;
 221
 222     /* allocate and initialize the PEB */
 223
 224     addr = NULL;
 225     size = sizeof(*peb);
 226     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 1, &size,
 227                              MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 228     peb = addr;
 229
 230     peb->ProcessParameters  = &params;
 231     peb->TlsBitmap          = &tls_bitmap;
 232     peb->TlsExpansionBitmap = &tls_expansion_bitmap;
 233     peb->FlsBitmap          = &fls_bitmap;
 234     peb->LdrData            = &ldr;
 235     params.CurrentDirectory.DosPath.Buffer = current_dir;
 236     params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
 237     params.wShowWindow = 1; /* SW_SHOWNORMAL */
 238     ldr.Length = sizeof(ldr);
 239     RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 );
 240     RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits,
 241                          sizeof(peb->TlsExpansionBitmapBits) * 8 );
 242     RtlInitializeBitMap( &fls_bitmap, peb->FlsBitmapBits, sizeof(peb->FlsBitmapBits) * 8 );
 243     InitializeListHead( &peb->FlsListHead );
 244     InitializeListHead( &ldr.InLoadOrderModuleList );
 245     InitializeListHead( &ldr.InMemoryOrderModuleList );
 246     InitializeListHead( &ldr.InInitializationOrderModuleList );
 247     InitializeListHead( &tls_links );
 248
 249     /* allocate and initialize the initial TEB */
 250
 251     signal_alloc_thread( &teb );
 252     teb->Peb = peb;
 253     teb->Tib.StackBase = (void *)~0UL;
 254     teb->StaticUnicodeString.Buffer = teb->StaticUnicodeBuffer;
 255     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
 256
 257     thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
 258     thread_data->request_fd = -1;
 259     thread_data->reply_fd   = -1;
 260     thread_data->wait_fd[0] = -1;
 261     thread_data->wait_fd[1] = -1;
 262     thread_data->debug_info = &debug_info;
 263     InsertHeadList( &tls_links, &teb->TlsLinks );
 264
 265     signal_init_thread( teb );
 266     virtual_init_threading();
 267
 268     debug_info.str_pos = debug_info.strings;
 269     debug_info.out_pos = debug_info.output;
 270     debug_init();
 271
 272     /* setup the server connection */
 273     server_init_process();
 274     info_size = server_init_thread( peb );
 275
 276     /* create the process heap */
 277     if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
 278     {
 279         MESSAGE( "wine: failed to create the process heap\n" );
 280         exit(1);
 281     }
 282
 283     /* allocate user parameters */
 284     if (info_size)
 285     {
 286         init_user_process_params( info_size, &exe_file );
 287     }
 288     else
 289     {
 290         if (isatty(0) || isatty(1) || isatty(2))
 291             params.ConsoleHandle = (HANDLE)2; /* see kernel32/kernel_private.h */
 292         if (!isatty(0))
 293             wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE,  OBJ_INHERIT, &params.hStdInput );
 294         if (!isatty(1))
 295             wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
 296         if (!isatty(2))
 297             wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
 298     }
 299
 300     /* initialize time values in user_shared_data */
 301     NtQuerySystemTime( &now );
 302     user_shared_data->SystemTime.LowPart = now.u.LowPart;
 303     user_shared_data->SystemTime.High1Time = user_shared_data->SystemTime.High2Time = now.u.HighPart;
 304     user_shared_data->u.TickCountQuad = (now.QuadPart - server_start_time) / 10000;
 305     user_shared_data->u.TickCount.High2Time = user_shared_data->u.TickCount.High1Time;
 306     user_shared_data->TickCountLowDeprecated = user_shared_data->u.TickCount.LowPart;
 307     user_shared_data->TickCountMultiplier = 1 << 24;
 308
 309     fill_cpu_info();
 310
 311     return exe_file;
 312 }
 313
 314
 315 /***********************************************************************
 316  *           terminate_thread
 317  */
 318 void terminate_thread( int status )
 319 {
 320     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 321     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1) _exit( status );
 322
 323     close( ntdll_get_thread_data()->wait_fd[0] );
 324     close( ntdll_get_thread_data()->wait_fd[1] );
 325     close( ntdll_get_thread_data()->reply_fd );
 326     close( ntdll_get_thread_data()->request_fd );
 327     pthread_exit( UIntToPtr(status) );
 328 }
 329
 330
 331 /***********************************************************************
 332  *           exit_thread
 333  */
 334 void exit_thread( int status )
 335 {
 336     static void *prev_teb;
 337     TEB *teb;
 338
 339     if (status)  /* send the exit code to the server (0 is already the default) */
 340     {
 341         SERVER_START_REQ( terminate_thread )
 342         {
 343             req->handle    = wine_server_obj_handle( GetCurrentThread() );
 344             req->exit_code = status;
 345             wine_server_call( req );
 346         }
 347         SERVER_END_REQ;
 348     }
 349
 350     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1)
 351     {
 352         LdrShutdownProcess();
 353         exit( status );
 354     }
 355
 356     LdrShutdownThread();
 357     RtlAcquirePebLock();
 358     RemoveEntryList( &NtCurrentTeb()->TlsLinks );
 359     RtlReleasePebLock();
 360     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots );
 361     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
 362
 363     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 364
 365     if ((teb = interlocked_xchg_ptr( &prev_teb, NtCurrentTeb() )))
 366     {
 367         struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
 368
 369         if (thread_data->pthread_id)
 370         {
 371             pthread_join( thread_data->pthread_id, NULL );
 372             signal_free_thread( teb );
 373         }
 374     }
 375
 376     close( ntdll_get_thread_data()->wait_fd[0] );
 377     close( ntdll_get_thread_data()->wait_fd[1] );
 378     close( ntdll_get_thread_data()->reply_fd );
 379     close( ntdll_get_thread_data()->request_fd );
 380     pthread_exit( UIntToPtr(status) );
 381 }
 382
 383
 384 /***********************************************************************
 385  *           start_thread
 386  *
 387  * Startup routine for a newly created thread.
 388  */
 389 static void start_thread( struct startup_info *info )
 390 {
 391     TEB *teb = info->teb;
 392     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
 393     PRTL_THREAD_START_ROUTINE func = info->entry_point;
 394     void *arg = info->entry_arg;
 395     struct debug_info debug_info;
 396
 397     debug_info.str_pos = debug_info.strings;
 398     debug_info.out_pos = debug_info.output;
 399     thread_data->debug_info = &debug_info;
 400     thread_data->pthread_id = pthread_self();
 401
 402     signal_init_thread( teb );
 403     server_init_thread( func );
 404     pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
 405
 406     RtlAcquirePebLock();
 407     InsertHeadList( &tls_links, &teb->TlsLinks );
 408     RtlReleasePebLock();
 409
 410     MODULE_DllThreadAttach( NULL );
 411
 412     if (TRACE_ON(relay))
 413         DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), func, arg );
 414
 415     call_thread_entry_point( (LPTHREAD_START_ROUTINE)func, arg );
 416 }
 417
 418
 419 /***********************************************************************
 420  *              RtlCreateUserThread   (NTDLL.@)
 421  */
 422 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 423                                      BOOLEAN suspended, PVOID stack_addr,
 424                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 425                                      PRTL_THREAD_START_ROUTINE start, void *param,
 426                                      HANDLE *handle_ptr, CLIENT_ID *id )
 427 {
 428     sigset_t sigset;
 429     pthread_t pthread_id;
 430     pthread_attr_t attr;
 431     struct ntdll_thread_data *thread_data;
 432     struct startup_info *info = NULL;
 433     HANDLE handle = 0;
 434     TEB *teb = NULL;
 435     DWORD tid = 0;
 436     int request_pipe[2];
 437     NTSTATUS status;
 438
 439     if (process != NtCurrentProcess())
 440     {
 441         apc_call_t call;
 442         apc_result_t result;
 443
 444         memset( &call, 0, sizeof(call) );
 445
 446         call.create_thread.type    = APC_CREATE_THREAD;
 447         call.create_thread.func    = wine_server_client_ptr( start );
 448         call.create_thread.arg     = wine_server_client_ptr( param );
 449         call.create_thread.reserve = stack_reserve;
 450         call.create_thread.commit  = stack_commit;
 451         call.create_thread.suspend = suspended;
 452         status = NTDLL_queue_process_apc( process, &call, &result );
 453         if (status != STATUS_SUCCESS) return status;
 454
 455         if (result.create_thread.status == STATUS_SUCCESS)
 456         {
 457             if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid);
 458             if (handle_ptr) *handle_ptr = wine_server_ptr_handle( result.create_thread.handle );
 459             else NtClose( wine_server_ptr_handle( result.create_thread.handle ));
 460         }
 461         return result.create_thread.status;
 462     }
 463
 464     if (RtlDllShutdownInProgress()) return STATUS_ACCESS_DENIED;
 465
 466     if (server_pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 467     wine_server_send_fd( request_pipe[0] );
 468
 469     SERVER_START_REQ( new_thread )
 470     {
 471         req->access     = THREAD_ALL_ACCESS;
 472         req->attributes = 0;  /* FIXME */
 473         req->suspend    = suspended;
 474         req->request_fd = request_pipe[0];
 475         if (!(status = wine_server_call( req )))
 476         {
 477             handle = wine_server_ptr_handle( reply->handle );
 478             tid = reply->tid;
 479         }
 480         close( request_pipe[0] );
 481     }
 482     SERVER_END_REQ;
 483
 484     if (status)
 485     {
 486         close( request_pipe[1] );
 487         return status;
 488     }
 489
 490     pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
 491
 492     if ((status = signal_alloc_thread( &teb ))) goto error;
 493
 494     teb->Peb = NtCurrentTeb()->Peb;
 495     teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId());
 496     teb->ClientId.UniqueThread  = ULongToHandle(tid);
 497     teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
 498     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
 499
 500     info = (struct startup_info *)(teb + 1);
 501     info->teb         = teb;
 502     info->entry_point = start;
 503     info->entry_arg   = param;
 504
 505     thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
 506     thread_data->request_fd  = request_pipe[1];
 507     thread_data->reply_fd    = -1;
 508     thread_data->wait_fd[0]  = -1;
 509     thread_data->wait_fd[1]  = -1;
 510
 511     if ((status = virtual_alloc_thread_stack( teb, stack_reserve, stack_commit ))) goto error;
 512
 513     pthread_attr_init( &attr );
 514     pthread_attr_setstack( &attr, teb->DeallocationStack,
 515                            (char *)teb->Tib.StackBase - (char *)teb->DeallocationStack );
 516     pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM ); /* force creating a kernel thread */
 517     interlocked_xchg_add( &nb_threads, 1 );
 518     if (pthread_create( &pthread_id, &attr, (void * (*)(void *))start_thread, info ))
 519     {
 520         interlocked_xchg_add( &nb_threads, -1 );
 521         pthread_attr_destroy( &attr );
 522         status = STATUS_NO_MEMORY;
 523         goto error;
 524     }
 525     pthread_attr_destroy( &attr );
 526     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 527
 528     if (id) id->UniqueThread = ULongToHandle(tid);
 529     if (handle_ptr) *handle_ptr = handle;
 530     else NtClose( handle );
 531
 532     return STATUS_SUCCESS;
 533
 534 error:
 535     if (teb) signal_free_thread( teb );
 536     if (handle) NtClose( handle );
 537     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 538     close( request_pipe[1] );
 539     return status;
 540 }
 541
 542
 543 /******************************************************************************
 544  *              RtlGetNtGlobalFlags   (NTDLL.@)
 545  */
 546 ULONG WINAPI RtlGetNtGlobalFlags(void)
 547 {
 548     if (!peb) return 0;  /* init not done yet */
 549     return peb->NtGlobalFlag;
 550 }
 551
 552
 553 /***********************************************************************
 554  *              NtOpenThread   (NTDLL.@)
 555  *              ZwOpenThread   (NTDLL.@)
 556  */
 557 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 558                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 559 {
 560     NTSTATUS ret;
 561
 562     SERVER_START_REQ( open_thread )
 563     {
 564         req->tid        = HandleToULong(id->UniqueThread);
 565         req->access     = access;
 566         req->attributes = attr ? attr->Attributes : 0;
 567         ret = wine_server_call( req );
 568         *handle = wine_server_ptr_handle( reply->handle );
 569     }
 570     SERVER_END_REQ;
 571     return ret;
 572 }
 573
 574
 575 /******************************************************************************
 576  *              NtSuspendThread   (NTDLL.@)
 577  *              ZwSuspendThread   (NTDLL.@)
 578  */
 579 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 580 {
 581     NTSTATUS ret;
 582
 583     SERVER_START_REQ( suspend_thread )
 584     {
 585         req->handle = wine_server_obj_handle( handle );
 586         if (!(ret = wine_server_call( req ))) *count = reply->count;
 587     }
 588     SERVER_END_REQ;
 589     return ret;
 590 }
 591
 592
 593 /******************************************************************************
 594  *              NtResumeThread   (NTDLL.@)
 595  *              ZwResumeThread   (NTDLL.@)
 596  */
 597 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 598 {
 599     NTSTATUS ret;
 600
 601     SERVER_START_REQ( resume_thread )
 602     {
 603         req->handle = wine_server_obj_handle( handle );
 604         if (!(ret = wine_server_call( req ))) *count = reply->count;
 605     }
 606     SERVER_END_REQ;
 607     return ret;
 608 }
 609
 610
 611 /******************************************************************************
 612  *              NtAlertResumeThread   (NTDLL.@)
 613  *              ZwAlertResumeThread   (NTDLL.@)
 614  */
 615 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
 616 {
 617     FIXME( "stub: should alert thread %p\n", handle );
 618     return NtResumeThread( handle, count );
 619 }
 620
 621
 622 /******************************************************************************
 623  *              NtAlertThread   (NTDLL.@)
 624  *              ZwAlertThread   (NTDLL.@)
 625  */
 626 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
 627 {
 628     FIXME( "stub: %p\n", handle );
 629     return STATUS_NOT_IMPLEMENTED;
 630 }
 631
 632
 633 /******************************************************************************
 634  *              NtTerminateThread  (NTDLL.@)
 635  *              ZwTerminateThread  (NTDLL.@)
 636  */
 637 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 638 {
 639     NTSTATUS ret;
 640     BOOL self;
 641
 642     SERVER_START_REQ( terminate_thread )
 643     {
 644         req->handle    = wine_server_obj_handle( handle );
 645         req->exit_code = exit_code;
 646         ret = wine_server_call( req );
 647         self = !ret && reply->self;
 648     }
 649     SERVER_END_REQ;
 650
 651     if (self) abort_thread( exit_code );
 652     return ret;
 653 }
 654
 655
 656 /******************************************************************************
 657  *              NtQueueApcThread  (NTDLL.@)
 658  */
 659 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 660                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 661 {
 662     NTSTATUS ret;
 663     SERVER_START_REQ( queue_apc )
 664     {
 665         req->handle = wine_server_obj_handle( handle );
 666         if (func)
 667         {
 668             req->call.type         = APC_USER;
 669             req->call.user.func    = wine_server_client_ptr( func );
 670             req->call.user.args[0] = arg1;
 671             req->call.user.args[1] = arg2;
 672             req->call.user.args[2] = arg3;
 673         }
 674         else req->call.type = APC_NONE;  /* wake up only */
 675         ret = wine_server_call( req );
 676     }
 677     SERVER_END_REQ;
 678     return ret;
 679 }
 680
 681
 682 /***********************************************************************
 683  *              NtSetContextThread  (NTDLL.@)
 684  *              ZwSetContextThread  (NTDLL.@)
 685  */
 686 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 687 {
 688     NTSTATUS ret;
 689     DWORD dummy, i;
 690     BOOL self = FALSE;
 691
 692 #ifdef __i386__
 693     /* on i386 debug registers always require a server call */
 694     self = (handle == GetCurrentThread());
 695     if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
 696     {
 697         self = (ntdll_get_thread_data()->dr0 == context->Dr0 &&
 698                 ntdll_get_thread_data()->dr1 == context->Dr1 &&
 699                 ntdll_get_thread_data()->dr2 == context->Dr2 &&
 700                 ntdll_get_thread_data()->dr3 == context->Dr3 &&
 701                 ntdll_get_thread_data()->dr6 == context->Dr6 &&
 702                 ntdll_get_thread_data()->dr7 == context->Dr7);
 703     }
 704 #endif
 705
 706     if (!self)
 707     {
 708         context_t server_context;
 709
 710         context_to_server( &server_context, context );
 711
 712         SERVER_START_REQ( set_thread_context )
 713         {
 714             req->handle  = wine_server_obj_handle( handle );
 715             req->suspend = 1;
 716             wine_server_add_data( req, &server_context, sizeof(server_context) );
 717             ret = wine_server_call( req );
 718             self = reply->self;
 719         }
 720         SERVER_END_REQ;
 721
 722         if (ret == STATUS_PENDING)
 723         {
 724             for (i = 0; i < 100; i++)
 725             {
 726                 SERVER_START_REQ( set_thread_context )
 727                 {
 728                     req->handle  = wine_server_obj_handle( handle );
 729                     req->suspend = 0;
 730                     wine_server_add_data( req, &server_context, sizeof(server_context) );
 731                     ret = wine_server_call( req );
 732                 }
 733                 SERVER_END_REQ;
 734                 if (ret == STATUS_PENDING)
 735                 {
 736                     LARGE_INTEGER timeout;
 737                     timeout.QuadPart = -10000;
 738                     NtDelayExecution( FALSE, &timeout );
 739                 }
 740                 else break;
 741             }
 742             NtResumeThread( handle, &dummy );
 743             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 744         }
 745
 746         if (ret) return ret;
 747     }
 748
 749     if (self) set_cpu_context( context );
 750     return STATUS_SUCCESS;
 751 }
 752
 753
 754 /* convert CPU-specific flags to generic server flags */
 755 static inline unsigned int get_server_context_flags( DWORD flags )
 756 {
 757     unsigned int ret = 0;
 758
 759     flags &= 0x3f;  /* mask CPU id flags */
 760     if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
 761     if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
 762 #ifdef CONTEXT_SEGMENTS
 763     if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
 764 #endif
 765 #ifdef CONTEXT_FLOATING_POINT
 766     if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
 767 #endif
 768 #ifdef CONTEXT_DEBUG_REGISTERS
 769     if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
 770 #endif
 771 #ifdef CONTEXT_EXTENDED_REGISTERS
 772     if (flags & CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS;
 773 #endif
 774     return ret;
 775 }
 776
 777 /***********************************************************************
 778  *              NtGetContextThread  (NTDLL.@)
 779  *              ZwGetContextThread  (NTDLL.@)
 780  */
 781 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
 782 {
 783     NTSTATUS ret;
 784     DWORD dummy, i;
 785     DWORD needed_flags = context->ContextFlags;
 786     BOOL self = (handle == GetCurrentThread());
 787
 788 #ifdef __i386__
 789     /* on i386 debug registers always require a server call */
 790     if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
 791 #endif
 792
 793     if (!self)
 794     {
 795         unsigned int server_flags = get_server_context_flags( context->ContextFlags );
 796         context_t server_context;
 797
 798         SERVER_START_REQ( get_thread_context )
 799         {
 800             req->handle  = wine_server_obj_handle( handle );
 801             req->flags   = server_flags;
 802             req->suspend = 1;
 803             wine_server_set_reply( req, &server_context, sizeof(server_context) );
 804             ret = wine_server_call( req );
 805             self = reply->self;
 806         }
 807         SERVER_END_REQ;
 808
 809         if (ret == STATUS_PENDING)
 810         {
 811             for (i = 0; i < 100; i++)
 812             {
 813                 SERVER_START_REQ( get_thread_context )
 814                 {
 815                     req->handle  = wine_server_obj_handle( handle );
 816                     req->flags   = server_flags;
 817                     req->suspend = 0;
 818                     wine_server_set_reply( req, &server_context, sizeof(server_context) );
 819                     ret = wine_server_call( req );
 820                 }
 821                 SERVER_END_REQ;
 822                 if (ret == STATUS_PENDING)
 823                 {
 824                     LARGE_INTEGER timeout;
 825                     timeout.QuadPart = -10000;
 826                     NtDelayExecution( FALSE, &timeout );
 827                 }
 828                 else break;
 829             }
 830             NtResumeThread( handle, &dummy );
 831             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 832         }
 833         if (!ret) ret = context_from_server( context, &server_context );
 834         if (ret) return ret;
 835         needed_flags &= ~context->ContextFlags;
 836     }
 837
 838     if (self)
 839     {
 840         if (needed_flags)
 841         {
 842             CONTEXT ctx;
 843             RtlCaptureContext( &ctx );
 844             copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
 845             context->ContextFlags |= ctx.ContextFlags & needed_flags;
 846         }
 847 #ifdef __i386__
 848         /* update the cached version of the debug registers */
 849         if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
 850         {
 851             ntdll_get_thread_data()->dr0 = context->Dr0;
 852             ntdll_get_thread_data()->dr1 = context->Dr1;
 853             ntdll_get_thread_data()->dr2 = context->Dr2;
 854             ntdll_get_thread_data()->dr3 = context->Dr3;
 855             ntdll_get_thread_data()->dr6 = context->Dr6;
 856             ntdll_get_thread_data()->dr7 = context->Dr7;
 857         }
 858 #endif
 859     }
 860     return STATUS_SUCCESS;
 861 }
 862
 863
 864 /******************************************************************************
 865  *              NtQueryInformationThread  (NTDLL.@)
 866  *              ZwQueryInformationThread  (NTDLL.@)
 867  */
 868 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
 869                                           void *data, ULONG length, ULONG *ret_len )
 870 {
 871     NTSTATUS status;
 872
 873     switch(class)
 874     {
 875     case ThreadBasicInformation:
 876         {
 877             THREAD_BASIC_INFORMATION info;
 878             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 879
 880             SERVER_START_REQ( get_thread_info )
 881             {
 882                 req->handle = wine_server_obj_handle( handle );
 883                 req->tid_in = 0;
 884                 if (!(status = wine_server_call( req )))
 885                 {
 886                     info.ExitStatus             = reply->exit_code;
 887                     info.TebBaseAddress         = wine_server_get_ptr( reply->teb );
 888                     info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
 889                     info.ClientId.UniqueThread  = ULongToHandle(reply->tid);
 890                     info.AffinityMask           = reply->affinity & affinity_mask;
 891                     info.Priority               = reply->priority;
 892                     info.BasePriority           = reply->priority;  /* FIXME */
 893                 }
 894             }
 895             SERVER_END_REQ;
 896             if (status == STATUS_SUCCESS)
 897             {
 898                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
 899                 if (ret_len) *ret_len = min( length, sizeof(info) );
 900             }
 901         }
 902         return status;
 903     case ThreadAffinityMask:
 904         {
 905             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 906             ULONG_PTR affinity = 0;
 907
 908             SERVER_START_REQ( get_thread_info )
 909             {
 910                 req->handle = wine_server_obj_handle( handle );
 911                 req->tid_in = 0;
 912                 if (!(status = wine_server_call( req )))
 913                     affinity = reply->affinity & affinity_mask;
 914             }
 915             SERVER_END_REQ;
 916             if (status == STATUS_SUCCESS)
 917             {
 918                 if (data) memcpy( data, &affinity, min( length, sizeof(affinity) ));
 919                 if (ret_len) *ret_len = min( length, sizeof(affinity) );
 920             }
 921         }
 922         return status;
 923     case ThreadTimes:
 924         {
 925             KERNEL_USER_TIMES   kusrt;
 926             /* We need to do a server call to get the creation time or exit time */
 927             /* This works on any thread */
 928             SERVER_START_REQ( get_thread_info )
 929             {
 930                 req->handle = wine_server_obj_handle( handle );
 931                 req->tid_in = 0;
 932                 status = wine_server_call( req );
 933                 if (status == STATUS_SUCCESS)
 934                 {
 935                     kusrt.CreateTime.QuadPart = reply->creation_time;
 936                     kusrt.ExitTime.QuadPart = reply->exit_time;
 937                 }
 938             }
 939             SERVER_END_REQ;
 940             if (status == STATUS_SUCCESS)
 941             {
 942                 /* We call times(2) for kernel time or user time */
 943                 /* We can only (portably) do this for the current thread */
 944                 if (handle == GetCurrentThread())
 945                 {
 946                     struct tms time_buf;
 947                     long clocks_per_sec = sysconf(_SC_CLK_TCK);
 948
 949                     times(&time_buf);
 950                     kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
 951                     kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
 952                 }
 953                 else
 954                 {
 955                     static BOOL reported = FALSE;
 956
 957                     kusrt.KernelTime.QuadPart = 0;
 958                     kusrt.UserTime.QuadPart = 0;
 959                     if (reported)
 960                         TRACE("Cannot get kerneltime or usertime of other threads\n");
 961                     else
 962                     {
 963                         FIXME("Cannot get kerneltime or usertime of other threads\n");
 964                         reported = TRUE;
 965                     }
 966                 }
 967                 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
 968                 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
 969             }
 970         }
 971         return status;
 972     case ThreadDescriptorTableEntry:
 973         {
 974 #ifdef __i386__
 975             THREAD_DESCRIPTOR_INFORMATION*      tdi = data;
 976             if (length < sizeof(*tdi))
 977                 status = STATUS_INFO_LENGTH_MISMATCH;
 978             else if (!(tdi->Selector & 4))  /* GDT selector */
 979             {
 980                 unsigned sel = tdi->Selector & ~3;  /* ignore RPL */
 981                 status = STATUS_SUCCESS;
 982                 if (!sel)  /* null selector */
 983                     memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
 984                 else
 985                 {
 986                     tdi->Entry.BaseLow                   = 0;
 987                     tdi->Entry.HighWord.Bits.BaseMid     = 0;
 988                     tdi->Entry.HighWord.Bits.BaseHi      = 0;
 989                     tdi->Entry.LimitLow                  = 0xffff;
 990                     tdi->Entry.HighWord.Bits.LimitHi     = 0xf;
 991                     tdi->Entry.HighWord.Bits.Dpl         = 3;
 992                     tdi->Entry.HighWord.Bits.Sys         = 0;
 993                     tdi->Entry.HighWord.Bits.Pres        = 1;
 994                     tdi->Entry.HighWord.Bits.Granularity = 1;
 995                     tdi->Entry.HighWord.Bits.Default_Big = 1;
 996                     tdi->Entry.HighWord.Bits.Type        = 0x12;
 997                     /* it has to be one of the system GDT selectors */
 998                     if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
 999                     {
1000                         if (sel == (wine_get_cs() & ~3))
1001                             tdi->Entry.HighWord.Bits.Type |= 8;  /* code segment */
1002                         else status = STATUS_ACCESS_DENIED;
1003                     }
1004                 }
1005             }
1006             else
1007             {
1008                 SERVER_START_REQ( get_selector_entry )
1009                 {
1010                     req->handle = wine_server_obj_handle( handle );
1011                     req->entry = tdi->Selector >> 3;
1012                     status = wine_server_call( req );
1013                     if (!status)
1014                     {
1015                         if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1016                             status = STATUS_ACCESS_VIOLATION;
1017                         else
1018                         {
1019                             wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1020                             wine_ldt_set_limit( &tdi->Entry, reply->limit );
1021                             wine_ldt_set_flags( &tdi->Entry, reply->flags );
1022                         }
1023                     }
1024                 }
1025                 SERVER_END_REQ;
1026             }
1027             if (status == STATUS_SUCCESS && ret_len)
1028                 /* yes, that's a bit strange, but it's the way it is */
1029                 *ret_len = sizeof(LDT_ENTRY);
1030 #else
1031             status = STATUS_NOT_IMPLEMENTED;
1032 #endif
1033             return status;
1034         }
1035     case ThreadAmILastThread:
1036         {
1037             SERVER_START_REQ(get_thread_info)
1038             {
1039                 req->handle = wine_server_obj_handle( handle );
1040                 req->tid_in = 0;
1041                 status = wine_server_call( req );
1042                 if (status == STATUS_SUCCESS)
1043                 {
1044                     BOOLEAN last = reply->last;
1045                     if (data) memcpy( data, &last, min( length, sizeof(last) ));
1046                     if (ret_len) *ret_len = min( length, sizeof(last) );
1047                 }
1048             }
1049             SERVER_END_REQ;
1050             return status;
1051         }
1052     case ThreadPriority:
1053     case ThreadBasePriority:
1054     case ThreadImpersonationToken:
1055     case ThreadEnableAlignmentFaultFixup:
1056     case ThreadEventPair_Reusable:
1057     case ThreadQuerySetWin32StartAddress:
1058     case ThreadZeroTlsCell:
1059     case ThreadPerformanceCount:
1060     case ThreadIdealProcessor:
1061     case ThreadPriorityBoost:
1062     case ThreadSetTlsArrayAddress:
1063     case ThreadIsIoPending:
1064     default:
1065         FIXME( "info class %d not supported yet\n", class );
1066         return STATUS_NOT_IMPLEMENTED;
1067     }
1068 }
1069
1070
1071 /******************************************************************************
1072  *              NtSetInformationThread  (NTDLL.@)
1073  *              ZwSetInformationThread  (NTDLL.@)
1074  */
1075 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1076                                         LPCVOID data, ULONG length )
1077 {
1078     NTSTATUS status;
1079     switch(class)
1080     {
1081     case ThreadZeroTlsCell:
1082         if (handle == GetCurrentThread())
1083         {
1084             LIST_ENTRY *entry;
1085             DWORD index;
1086
1087             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1088             index = *(const DWORD *)data;
1089             if (index < TLS_MINIMUM_AVAILABLE)
1090             {
1091                 RtlAcquirePebLock();
1092                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1093                 {
1094                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1095                     teb->TlsSlots[index] = 0;
1096                 }
1097                 RtlReleasePebLock();
1098             }
1099             else
1100             {
1101                 index -= TLS_MINIMUM_AVAILABLE;
1102                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1103                     return STATUS_INVALID_PARAMETER;
1104                 RtlAcquirePebLock();
1105                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1106                 {
1107                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1108                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1109                 }
1110                 RtlReleasePebLock();
1111             }
1112             return STATUS_SUCCESS;
1113         }
1114         FIXME( "ZeroTlsCell not supported on other threads\n" );
1115         return STATUS_NOT_IMPLEMENTED;
1116
1117     case ThreadImpersonationToken:
1118         {
1119             const HANDLE *phToken = data;
1120             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1121             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1122             SERVER_START_REQ( set_thread_info )
1123             {
1124                 req->handle   = wine_server_obj_handle( handle );
1125                 req->token    = wine_server_obj_handle( *phToken );
1126                 req->mask     = SET_THREAD_INFO_TOKEN;
1127                 status = wine_server_call( req );
1128             }
1129             SERVER_END_REQ;
1130         }
1131         return status;
1132     case ThreadBasePriority:
1133         {
1134             const DWORD *pprio = data;
1135             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1136             SERVER_START_REQ( set_thread_info )
1137             {
1138                 req->handle   = wine_server_obj_handle( handle );
1139                 req->priority = *pprio;
1140                 req->mask     = SET_THREAD_INFO_PRIORITY;
1141                 status = wine_server_call( req );
1142             }
1143             SERVER_END_REQ;
1144         }
1145         return status;
1146     case ThreadAffinityMask:
1147         {
1148             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1149             ULONG_PTR req_aff;
1150
1151             if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER;
1152             req_aff = *(const ULONG_PTR *)data;
1153             if ((ULONG)req_aff == ~0u) req_aff = affinity_mask;
1154             else if (req_aff & ~affinity_mask) return STATUS_INVALID_PARAMETER;
1155             else if (!req_aff) return STATUS_INVALID_PARAMETER;
1156             SERVER_START_REQ( set_thread_info )
1157             {
1158                 req->handle   = wine_server_obj_handle( handle );
1159                 req->affinity = req_aff;
1160                 req->mask     = SET_THREAD_INFO_AFFINITY;
1161                 status = wine_server_call( req );
1162             }
1163             SERVER_END_REQ;
1164         }
1165         return status;
1166     case ThreadHideFromDebugger:
1167         /* pretend the call succeeded to satisfy some code protectors */
1168         return STATUS_SUCCESS;
1169
1170     case ThreadBasicInformation:
1171     case ThreadTimes:
1172     case ThreadPriority:
1173     case ThreadDescriptorTableEntry:
1174     case ThreadEnableAlignmentFaultFixup:
1175     case ThreadEventPair_Reusable:
1176     case ThreadQuerySetWin32StartAddress:
1177     case ThreadPerformanceCount:
1178     case ThreadAmILastThread:
1179     case ThreadIdealProcessor:
1180     case ThreadPriorityBoost:
1181     case ThreadSetTlsArrayAddress:
1182     case ThreadIsIoPending:
1183     default:
1184         FIXME( "info class %d not supported yet\n", class );
1185         return STATUS_NOT_IMPLEMENTED;
1186     }
1187 }
1188
1189 /******************************************************************************
1190  * NtGetCurrentProcessorNumber (NTDLL.@)
1191  *
1192  * Return the processor, on which the thread is running
1193  *
1194  */
1195 ULONG WINAPI NtGetCurrentProcessorNumber(void)
1196 {
1197     ULONG processor;
1198
1199 #if defined(__linux__) && defined(__NR_getcpu)
1200     int res = syscall(__NR_getcpu, &processor, NULL, NULL);
1201     if (res != -1) return processor;
1202 #endif
1203
1204     if (NtCurrentTeb()->Peb->NumberOfProcessors > 1)
1205     {
1206         ULONG_PTR thread_mask, processor_mask;
1207         NTSTATUS status;
1208
1209         status = NtQueryInformationThread(GetCurrentThread(), ThreadAffinityMask,
1210                                           &thread_mask, sizeof(thread_mask), NULL);
1211         if (status == STATUS_SUCCESS)
1212         {
1213             for (processor = 0; processor < NtCurrentTeb()->Peb->NumberOfProcessors; processor++)
1214             {
1215                 processor_mask = (1 << processor);
1216                 if (thread_mask & processor_mask)
1217                 {
1218                     if (thread_mask != processor_mask)
1219                         FIXME("need multicore support (%d processors)\n",
1220                               NtCurrentTeb()->Peb->NumberOfProcessors);
1221                     return processor;
1222                 }
1223             }
1224         }
1225     }
1226
1227     /* fallback to the first processor */
1228     return 0;
1229 }