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 <sys/types.h>
  26 #ifdef HAVE_SYS_MMAN_H
  27 #include <sys/mman.h>
  28 #endif
  29 #ifdef HAVE_SYS_TIMES_H
  30 #include <sys/times.h>
  31 #endif
  32
  33 #define NONAMELESSUNION
  34 #include "ntstatus.h"
  35 #define WIN32_NO_STATUS
  36 #include "thread.h"
  37 #include "winternl.h"
  38 #include "wine/library.h"
  39 #include "wine/server.h"
  40 #include "wine/pthread.h"
  41 #include "wine/debug.h"
  42 #include "ntdll_misc.h"
  43 #include "wine/exception.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  46
  47 /* info passed to a starting thread */
  48 struct startup_info
  49 {
  50     struct wine_pthread_thread_info pthread_info;
  51     PRTL_THREAD_START_ROUTINE       entry_point;
  52     void                           *entry_arg;
  53 };
  54
  55 static PEB_LDR_DATA ldr;
  56 static RTL_USER_PROCESS_PARAMETERS params;  /* default parameters if no parent */
  57 static WCHAR current_dir[MAX_NT_PATH_LENGTH];
  58 static RTL_BITMAP tls_bitmap;
  59 static RTL_BITMAP tls_expansion_bitmap;
  60 static LIST_ENTRY tls_links;
  61 static size_t sigstack_total_size;
  62 static ULONG sigstack_zero_bits;
  63
  64 struct wine_pthread_functions pthread_functions = { NULL };
  65
  66 /***********************************************************************
  67  *           init_teb
  68  */
  69 static inline NTSTATUS init_teb( TEB *teb )
  70 {
  71     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
  72     struct ntdll_thread_regs *thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
  73
  74     teb->Tib.ExceptionList = (void *)~0UL;
  75     teb->Tib.StackBase     = (void *)~0UL;
  76     teb->Tib.Self          = &teb->Tib;
  77     teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
  78     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
  79
  80     if (!(thread_regs->fs = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
  81     thread_data->request_fd = -1;
  82     thread_data->reply_fd   = -1;
  83     thread_data->wait_fd[0] = -1;
  84     thread_data->wait_fd[1] = -1;
  85
  86     return STATUS_SUCCESS;
  87 }
  88
  89
  90 /***********************************************************************
  91  *           fix_unicode_string
  92  *
  93  * Make sure the unicode string doesn't point beyond the end pointer
  94  */
  95 static inline void fix_unicode_string( UNICODE_STRING *str, char *end_ptr )
  96 {
  97     if ((char *)str->Buffer >= end_ptr)
  98     {
  99         str->Length = str->MaximumLength = 0;
 100         str->Buffer = NULL;
 101         return;
 102     }
 103     if ((char *)str->Buffer + str->MaximumLength > end_ptr)
 104     {
 105         str->MaximumLength = (end_ptr - (char *)str->Buffer) & ~(sizeof(WCHAR) - 1);
 106     }
 107     if (str->Length >= str->MaximumLength)
 108     {
 109         if (str->MaximumLength >= sizeof(WCHAR))
 110             str->Length = str->MaximumLength - sizeof(WCHAR);
 111         else
 112             str->Length = str->MaximumLength = 0;
 113     }
 114 }
 115
 116
 117 /***********************************************************************
 118  *           init_user_process_params
 119  *
 120  * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
 121  */
 122 static NTSTATUS init_user_process_params( SIZE_T info_size, HANDLE *exe_file )
 123 {
 124     void *ptr;
 125     SIZE_T env_size;
 126     NTSTATUS status;
 127     RTL_USER_PROCESS_PARAMETERS *params = NULL;
 128
 129     status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &info_size,
 130                                       MEM_COMMIT, PAGE_READWRITE );
 131     if (status != STATUS_SUCCESS) return status;
 132
 133     params->AllocationSize = info_size;
 134     NtCurrentTeb()->Peb->ProcessParameters = params;
 135
 136     SERVER_START_REQ( get_startup_info )
 137     {
 138         wine_server_set_reply( req, params, info_size );
 139         if (!(status = wine_server_call( req )))
 140         {
 141             info_size = wine_server_reply_size( reply );
 142             *exe_file = reply->exe_file;
 143             params->hStdInput  = reply->hstdin;
 144             params->hStdOutput = reply->hstdout;
 145             params->hStdError  = reply->hstderr;
 146         }
 147     }
 148     SERVER_END_REQ;
 149     if (status != STATUS_SUCCESS) return status;
 150
 151     if (params->Size > info_size) params->Size = info_size;
 152
 153     /* make sure the strings are valid */
 154     fix_unicode_string( &params->CurrentDirectory.DosPath, (char *)info_size );
 155     fix_unicode_string( &params->DllPath, (char *)info_size );
 156     fix_unicode_string( &params->ImagePathName, (char *)info_size );
 157     fix_unicode_string( &params->CommandLine, (char *)info_size );
 158     fix_unicode_string( &params->WindowTitle, (char *)info_size );
 159     fix_unicode_string( &params->Desktop, (char *)info_size );
 160     fix_unicode_string( &params->ShellInfo, (char *)info_size );
 161     fix_unicode_string( &params->RuntimeInfo, (char *)info_size );
 162
 163     /* environment needs to be a separate memory block */
 164     env_size = info_size - params->Size;
 165     if (!env_size) env_size = 1;
 166     ptr = NULL;
 167     status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &env_size,
 168                                       MEM_COMMIT, PAGE_READWRITE );
 169     if (status != STATUS_SUCCESS) return status;
 170     memcpy( ptr, (char *)params + params->Size, info_size - params->Size );
 171     params->Environment = ptr;
 172
 173     RtlNormalizeProcessParams( params );
 174     return status;
 175 }
 176
 177
 178 /***********************************************************************
 179  *           thread_init
 180  *
 181  * Setup the initial thread.
 182  *
 183  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 184  */
 185 HANDLE thread_init(void)
 186 {
 187     PEB *peb;
 188     TEB *teb;
 189     void *addr;
 190     SIZE_T size, info_size;
 191     HANDLE exe_file = 0;
 192     struct ntdll_thread_data *thread_data;
 193     struct ntdll_thread_regs *thread_regs;
 194     struct wine_pthread_thread_info thread_info;
 195     static struct debug_info debug_info;  /* debug info for initial thread */
 196
 197     virtual_init();
 198
 199     /* reserve space for shared user data */
 200
 201     addr = (void *)0x7ffe0000;
 202     size = 0x10000;
 203     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_RESERVE, PAGE_READONLY );
 204
 205     /* allocate and initialize the PEB */
 206
 207     addr = NULL;
 208     size = sizeof(*peb);
 209     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 1, &size,
 210                              MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 211     peb = addr;
 212
 213     peb->NumberOfProcessors = 1;
 214     peb->ProcessParameters  = &params;
 215     peb->TlsBitmap          = &tls_bitmap;
 216     peb->TlsExpansionBitmap = &tls_expansion_bitmap;
 217     peb->LdrData            = &ldr;
 218     params.CurrentDirectory.DosPath.Buffer = current_dir;
 219     params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
 220     params.wShowWindow = 1; /* SW_SHOWNORMAL */
 221     RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 );
 222     RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits,
 223                          sizeof(peb->TlsExpansionBitmapBits) * 8 );
 224     InitializeListHead( &ldr.InLoadOrderModuleList );
 225     InitializeListHead( &ldr.InMemoryOrderModuleList );
 226     InitializeListHead( &ldr.InInitializationOrderModuleList );
 227     InitializeListHead( &tls_links );
 228
 229     /* allocate and initialize the initial TEB */
 230
 231     sigstack_total_size = get_signal_stack_total_size();
 232     while (1 << sigstack_zero_bits < sigstack_total_size) sigstack_zero_bits++;
 233     assert( 1 << sigstack_zero_bits == sigstack_total_size );  /* must be a power of 2 */
 234     assert( sigstack_total_size >= sizeof(TEB) + sizeof(struct startup_info) );
 235     thread_info.teb_size = sigstack_total_size;
 236
 237     addr = NULL;
 238     size = sigstack_total_size;
 239     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 240                              &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 241     teb = addr;
 242     teb->Peb = peb;
 243     thread_info.teb_size = size;
 244     init_teb( teb );
 245     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 246     thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
 247     thread_data->debug_info = &debug_info;
 248     InsertHeadList( &tls_links, &teb->TlsLinks );
 249
 250     thread_info.stack_base = NULL;
 251     thread_info.stack_size = 0;
 252     thread_info.teb_base   = teb;
 253     thread_info.teb_sel    = thread_regs->fs;
 254     wine_pthread_get_functions( &pthread_functions, sizeof(pthread_functions) );
 255     pthread_functions.init_current_teb( &thread_info );
 256     pthread_functions.init_thread( &thread_info );
 257     virtual_init_threading();
 258
 259     debug_info.str_pos = debug_info.strings;
 260     debug_info.out_pos = debug_info.output;
 261     debug_init();
 262
 263     /* setup the server connection */
 264     server_init_process();
 265     info_size = server_init_thread( thread_info.pid, thread_info.tid, NULL );
 266
 267     /* create the process heap */
 268     if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
 269     {
 270         MESSAGE( "wine: failed to create the process heap\n" );
 271         exit(1);
 272     }
 273
 274     /* allocate user parameters */
 275     if (info_size)
 276     {
 277         init_user_process_params( info_size, &exe_file );
 278     }
 279     else
 280     {
 281         /* This is wine specific: we have no parent (we're started from unix)
 282          * so, create a simple console with bare handles to unix stdio
 283          */
 284         wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE,  OBJ_INHERIT, &params.hStdInput );
 285         wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
 286         wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
 287     }
 288     return exe_file;
 289 }
 290
 291 typedef LONG (WINAPI *PUNHANDLED_EXCEPTION_FILTER)(PEXCEPTION_POINTERS);
 292 static PUNHANDLED_EXCEPTION_FILTER get_unhandled_exception_filter(void)
 293 {
 294     static PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter;
 295     static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
 296     UNICODE_STRING module_name;
 297     ANSI_STRING func_name;
 298     HMODULE kernel32_handle;
 299
 300     if (unhandled_exception_filter) return unhandled_exception_filter;
 301
 302     RtlInitUnicodeString(&module_name, kernel32W);
 303     RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
 304
 305     if (LdrGetDllHandle( 0, 0, &module_name, &kernel32_handle ) == STATUS_SUCCESS)
 306         LdrGetProcedureAddress( kernel32_handle, &func_name, 0,
 307                                 (void **)&unhandled_exception_filter );
 308
 309     return unhandled_exception_filter;
 310 }
 311
 312 /***********************************************************************
 313  *           start_thread
 314  *
 315  * Startup routine for a newly created thread.
 316  */
 317 static void start_thread( struct wine_pthread_thread_info *info )
 318 {
 319     TEB *teb = info->teb_base;
 320     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 321     struct startup_info *startup_info = (struct startup_info *)info;
 322     PRTL_THREAD_START_ROUTINE func = startup_info->entry_point;
 323     void *arg = startup_info->entry_arg;
 324     struct debug_info debug_info;
 325     SIZE_T size, page_size = getpagesize();
 326
 327     debug_info.str_pos = debug_info.strings;
 328     debug_info.out_pos = debug_info.output;
 329     thread_data->debug_info = &debug_info;
 330
 331     pthread_functions.init_current_teb( info );
 332     SIGNAL_Init();
 333     server_init_thread( info->pid, info->tid, func );
 334     pthread_functions.init_thread( info );
 335
 336     /* allocate a memory view for the stack */
 337     size = info->stack_size;
 338     teb->DeallocationStack = info->stack_base;
 339     NtAllocateVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, 0,
 340                              &size, MEM_SYSTEM, PAGE_READWRITE );
 341     /* limit is lower than base since the stack grows down */
 342     teb->Tib.StackBase  = (char *)info->stack_base + info->stack_size;
 343     teb->Tib.StackLimit = (char *)info->stack_base + page_size;
 344
 345     /* setup the guard page */
 346     size = page_size;
 347     NtProtectVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, PAGE_NOACCESS, NULL );
 348
 349     pthread_functions.sigprocmask( SIG_UNBLOCK, &server_block_set, NULL );
 350
 351     RtlAcquirePebLock();
 352     InsertHeadList( &tls_links, &teb->TlsLinks );
 353     RtlReleasePebLock();
 354
 355     /* NOTE: Windows does not have an exception handler around the call to
 356      * the thread attach. We do for ease of debugging */
 357     if (get_unhandled_exception_filter())
 358     {
 359         __TRY
 360         {
 361             MODULE_DllThreadAttach( NULL );
 362         }
 363         __EXCEPT(get_unhandled_exception_filter())
 364         {
 365             NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
 366         }
 367         __ENDTRY
 368     }
 369     else
 370         MODULE_DllThreadAttach( NULL );
 371
 372     func( arg );
 373 }
 374
 375
 376 /***********************************************************************
 377  *              RtlCreateUserThread   (NTDLL.@)
 378  */
 379 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 380                                      BOOLEAN suspended, PVOID stack_addr,
 381                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 382                                      PRTL_THREAD_START_ROUTINE start, void *param,
 383                                      HANDLE *handle_ptr, CLIENT_ID *id )
 384 {
 385     sigset_t sigset;
 386     struct ntdll_thread_data *thread_data;
 387     struct ntdll_thread_regs *thread_regs = NULL;
 388     struct startup_info *info = NULL;
 389     void *addr = NULL;
 390     HANDLE handle = 0;
 391     TEB *teb;
 392     DWORD tid = 0;
 393     int request_pipe[2];
 394     NTSTATUS status;
 395     SIZE_T size, page_size = getpagesize();
 396
 397     if( ! is_current_process( process ) )
 398     {
 399         ERR("Unsupported on other process\n");
 400         return STATUS_ACCESS_DENIED;
 401     }
 402
 403     if (pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 404     fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
 405     wine_server_send_fd( request_pipe[0] );
 406
 407     SERVER_START_REQ( new_thread )
 408     {
 409         req->access     = THREAD_ALL_ACCESS;
 410         req->attributes = 0;  /* FIXME */
 411         req->suspend    = suspended;
 412         req->request_fd = request_pipe[0];
 413         if (!(status = wine_server_call( req )))
 414         {
 415             handle = reply->handle;
 416             tid = reply->tid;
 417         }
 418         close( request_pipe[0] );
 419     }
 420     SERVER_END_REQ;
 421
 422     if (status)
 423     {
 424         close( request_pipe[1] );
 425         return status;
 426     }
 427
 428     pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, &sigset );
 429
 430     addr = NULL;
 431     size = sigstack_total_size;
 432     if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 433                                            &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
 434         goto error;
 435     teb = addr;
 436     teb->Peb = NtCurrentTeb()->Peb;
 437     info = (struct startup_info *)(teb + 1);
 438     info->pthread_info.teb_size = size;
 439     if ((status = init_teb( teb ))) goto error;
 440
 441     teb->ClientId.UniqueProcess = (HANDLE)GetCurrentProcessId();
 442     teb->ClientId.UniqueThread  = (HANDLE)tid;
 443
 444     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 445     thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
 446     thread_data->request_fd  = request_pipe[1];
 447
 448     info->pthread_info.teb_base = teb;
 449     info->pthread_info.teb_sel  = thread_regs->fs;
 450
 451     /* inherit debug registers from parent thread */
 452     thread_regs->dr0 = ntdll_get_thread_regs()->dr0;
 453     thread_regs->dr1 = ntdll_get_thread_regs()->dr1;
 454     thread_regs->dr2 = ntdll_get_thread_regs()->dr2;
 455     thread_regs->dr3 = ntdll_get_thread_regs()->dr3;
 456     thread_regs->dr6 = ntdll_get_thread_regs()->dr6;
 457     thread_regs->dr7 = ntdll_get_thread_regs()->dr7;
 458
 459     if (!stack_reserve || !stack_commit)
 460     {
 461         IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress );
 462         if (!stack_reserve) stack_reserve = nt->OptionalHeader.SizeOfStackReserve;
 463         if (!stack_commit) stack_commit = nt->OptionalHeader.SizeOfStackCommit;
 464     }
 465     if (stack_reserve < stack_commit) stack_reserve = stack_commit;
 466     stack_reserve += page_size;  /* for the guard page */
 467     stack_reserve = (stack_reserve + 0xffff) & ~0xffff;  /* round to 64K boundary */
 468     if (stack_reserve < 1024 * 1024) stack_reserve = 1024 * 1024;  /* Xlib needs a large stack */
 469
 470     info->pthread_info.stack_base = NULL;
 471     info->pthread_info.stack_size = stack_reserve;
 472     info->pthread_info.entry      = start_thread;
 473     info->entry_point             = start;
 474     info->entry_arg               = param;
 475
 476     if (pthread_functions.create_thread( &info->pthread_info ) == -1)
 477     {
 478         status = STATUS_NO_MEMORY;
 479         goto error;
 480     }
 481     pthread_functions.sigprocmask( SIG_SETMASK, &sigset, NULL );
 482
 483     if (id) id->UniqueThread = (HANDLE)tid;
 484     if (handle_ptr) *handle_ptr = handle;
 485     else NtClose( handle );
 486
 487     return STATUS_SUCCESS;
 488
 489 error:
 490     if (thread_regs) wine_ldt_free_fs( thread_regs->fs );
 491     if (addr)
 492     {
 493         SIZE_T size = 0;
 494         NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
 495     }
 496     if (handle) NtClose( handle );
 497     pthread_functions.sigprocmask( SIG_SETMASK, &sigset, NULL );
 498     close( request_pipe[1] );
 499     return status;
 500 }
 501
 502
 503 /***********************************************************************
 504  *           RtlExitUserThread  (NTDLL.@)
 505  */
 506 void WINAPI RtlExitUserThread( ULONG status )
 507 {
 508     LdrShutdownThread();
 509     server_exit_thread( status );
 510 }
 511
 512
 513 /***********************************************************************
 514  *              NtOpenThread   (NTDLL.@)
 515  *              ZwOpenThread   (NTDLL.@)
 516  */
 517 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 518                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 519 {
 520     NTSTATUS ret;
 521
 522     SERVER_START_REQ( open_thread )
 523     {
 524         req->tid        = (thread_id_t)id->UniqueThread;
 525         req->access     = access;
 526         req->attributes = attr ? attr->Attributes : 0;
 527         ret = wine_server_call( req );
 528         *handle = reply->handle;
 529     }
 530     SERVER_END_REQ;
 531     return ret;
 532 }
 533
 534
 535 /******************************************************************************
 536  *              NtSuspendThread   (NTDLL.@)
 537  *              ZwSuspendThread   (NTDLL.@)
 538  */
 539 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 540 {
 541     NTSTATUS ret;
 542
 543     SERVER_START_REQ( suspend_thread )
 544     {
 545         req->handle = handle;
 546         if (!(ret = wine_server_call( req ))) *count = reply->count;
 547     }
 548     SERVER_END_REQ;
 549     return ret;
 550 }
 551
 552
 553 /******************************************************************************
 554  *              NtResumeThread   (NTDLL.@)
 555  *              ZwResumeThread   (NTDLL.@)
 556  */
 557 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 558 {
 559     NTSTATUS ret;
 560
 561     SERVER_START_REQ( resume_thread )
 562     {
 563         req->handle = handle;
 564         if (!(ret = wine_server_call( req ))) *count = reply->count;
 565     }
 566     SERVER_END_REQ;
 567     return ret;
 568 }
 569
 570
 571 /******************************************************************************
 572  *              NtAlertResumeThread   (NTDLL.@)
 573  *              ZwAlertResumeThread   (NTDLL.@)
 574  */
 575 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
 576 {
 577     FIXME( "stub: should alert thread %p\n", handle );
 578     return NtResumeThread( handle, count );
 579 }
 580
 581
 582 /******************************************************************************
 583  *              NtAlertThread   (NTDLL.@)
 584  *              ZwAlertThread   (NTDLL.@)
 585  */
 586 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
 587 {
 588     FIXME( "stub: %p\n", handle );
 589     return STATUS_NOT_IMPLEMENTED;
 590 }
 591
 592
 593 /******************************************************************************
 594  *              NtTerminateThread  (NTDLL.@)
 595  *              ZwTerminateThread  (NTDLL.@)
 596  */
 597 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 598 {
 599     NTSTATUS ret;
 600     BOOL self, last;
 601
 602     SERVER_START_REQ( terminate_thread )
 603     {
 604         req->handle    = handle;
 605         req->exit_code = exit_code;
 606         ret = wine_server_call( req );
 607         self = !ret && reply->self;
 608         last = reply->last;
 609     }
 610     SERVER_END_REQ;
 611
 612     if (self)
 613     {
 614         if (last) exit( exit_code );
 615         else server_abort_thread( exit_code );
 616     }
 617     return ret;
 618 }
 619
 620
 621 /******************************************************************************
 622  *              NtQueueApcThread  (NTDLL.@)
 623  */
 624 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 625                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 626 {
 627     NTSTATUS ret;
 628     SERVER_START_REQ( queue_apc )
 629     {
 630         req->thread = handle;
 631         if (func)
 632         {
 633             req->call.type         = APC_USER;
 634             req->call.user.func    = func;
 635             req->call.user.args[0] = arg1;
 636             req->call.user.args[1] = arg2;
 637             req->call.user.args[2] = arg3;
 638         }
 639         else req->call.type = APC_NONE;  /* wake up only */
 640         ret = wine_server_call( req );
 641     }
 642     SERVER_END_REQ;
 643     return ret;
 644 }
 645
 646
 647 /***********************************************************************
 648  *              NtSetContextThread  (NTDLL.@)
 649  *              ZwSetContextThread  (NTDLL.@)
 650  */
 651 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 652 {
 653     NTSTATUS ret;
 654     DWORD dummy, i;
 655     BOOL self = FALSE;
 656
 657 #ifdef __i386__
 658     /* on i386 debug registers always require a server call */
 659     self = (handle == GetCurrentThread());
 660     if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
 661     {
 662         struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 663         self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 &&
 664                 regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 &&
 665                 regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7);
 666     }
 667 #endif
 668
 669     if (!self)
 670     {
 671         SERVER_START_REQ( set_thread_context )
 672         {
 673             req->handle  = handle;
 674             req->flags   = context->ContextFlags;
 675             req->suspend = 0;
 676             wine_server_add_data( req, context, sizeof(*context) );
 677             ret = wine_server_call( req );
 678             self = reply->self;
 679         }
 680         SERVER_END_REQ;
 681
 682         if (ret == STATUS_PENDING)
 683         {
 684             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 685             {
 686                 for (i = 0; i < 100; i++)
 687                 {
 688                     SERVER_START_REQ( set_thread_context )
 689                     {
 690                         req->handle  = handle;
 691                         req->flags   = context->ContextFlags;
 692                         req->suspend = 0;
 693                         wine_server_add_data( req, context, sizeof(*context) );
 694                         ret = wine_server_call( req );
 695                     }
 696                     SERVER_END_REQ;
 697                     if (ret != STATUS_PENDING) break;
 698                     NtYieldExecution();
 699                 }
 700                 NtResumeThread( handle, &dummy );
 701             }
 702             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 703         }
 704
 705         if (ret) return ret;
 706     }
 707
 708     if (self) set_cpu_context( context );
 709     return STATUS_SUCCESS;
 710 }
 711
 712
 713 /* copy a context structure according to the flags */
 714 static inline void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
 715 {
 716 #ifdef __i386__
 717     flags &= ~CONTEXT_i386;  /* get rid of CPU id */
 718     if (flags & CONTEXT_INTEGER)
 719     {
 720         to->Eax = from->Eax;
 721         to->Ebx = from->Ebx;
 722         to->Ecx = from->Ecx;
 723         to->Edx = from->Edx;
 724         to->Esi = from->Esi;
 725         to->Edi = from->Edi;
 726     }
 727     if (flags & CONTEXT_CONTROL)
 728     {
 729         to->Ebp    = from->Ebp;
 730         to->Esp    = from->Esp;
 731         to->Eip    = from->Eip;
 732         to->SegCs  = from->SegCs;
 733         to->SegSs  = from->SegSs;
 734         to->EFlags = from->EFlags;
 735     }
 736     if (flags & CONTEXT_SEGMENTS)
 737     {
 738         to->SegDs = from->SegDs;
 739         to->SegEs = from->SegEs;
 740         to->SegFs = from->SegFs;
 741         to->SegGs = from->SegGs;
 742     }
 743     if (flags & CONTEXT_DEBUG_REGISTERS)
 744     {
 745         to->Dr0 = from->Dr0;
 746         to->Dr1 = from->Dr1;
 747         to->Dr2 = from->Dr2;
 748         to->Dr3 = from->Dr3;
 749         to->Dr6 = from->Dr6;
 750         to->Dr7 = from->Dr7;
 751     }
 752     if (flags & CONTEXT_FLOATING_POINT)
 753     {
 754         to->FloatSave = from->FloatSave;
 755     }
 756 #elif defined(__x86_64__)
 757     flags &= ~CONTEXT_AMD64;  /* get rid of CPU id */
 758     if (flags & CONTEXT_CONTROL)
 759     {
 760         to->Rbp    = from->Rbp;
 761         to->Rip    = from->Rip;
 762         to->Rsp    = from->Rsp;
 763         to->SegCs  = from->SegCs;
 764         to->SegSs  = from->SegSs;
 765         to->EFlags = from->EFlags;
 766         to->MxCsr  = from->MxCsr;
 767     }
 768     if (flags & CONTEXT_INTEGER)
 769     {
 770         to->Rax = from->Rax;
 771         to->Rcx = from->Rcx;
 772         to->Rdx = from->Rdx;
 773         to->Rbx = from->Rbx;
 774         to->Rsi = from->Rsi;
 775         to->Rdi = from->Rdi;
 776         to->R8  = from->R8;
 777         to->R9  = from->R9;
 778         to->R10 = from->R10;
 779         to->R11 = from->R11;
 780         to->R12 = from->R12;
 781         to->R13 = from->R13;
 782         to->R14 = from->R14;
 783         to->R15 = from->R15;
 784     }
 785     if (flags & CONTEXT_SEGMENTS)
 786     {
 787         to->SegDs = from->SegDs;
 788         to->SegEs = from->SegEs;
 789         to->SegFs = from->SegFs;
 790         to->SegGs = from->SegGs;
 791     }
 792     if (flags & CONTEXT_FLOATING_POINT)
 793     {
 794         to->u.FltSave = from->u.FltSave;
 795     }
 796     if (flags & CONTEXT_DEBUG_REGISTERS)
 797     {
 798         to->Dr0 = from->Dr0;
 799         to->Dr1 = from->Dr1;
 800         to->Dr2 = from->Dr2;
 801         to->Dr3 = from->Dr3;
 802         to->Dr6 = from->Dr6;
 803         to->Dr7 = from->Dr7;
 804     }
 805 #elif defined(__sparc__)
 806     flags &= ~CONTEXT_SPARC;  /* get rid of CPU id */
 807     if (flags & CONTEXT_CONTROL)
 808     {
 809         to->psr = from->psr;
 810         to->pc  = from->pc;
 811         to->npc = from->npc;
 812         to->y   = from->y;
 813         to->wim = from->wim;
 814         to->tbr = from->tbr;
 815     }
 816     if (flags & CONTEXT_INTEGER)
 817     {
 818         to->g0 = from->g0;
 819         to->g1 = from->g1;
 820         to->g2 = from->g2;
 821         to->g3 = from->g3;
 822         to->g4 = from->g4;
 823         to->g5 = from->g5;
 824         to->g6 = from->g6;
 825         to->g7 = from->g7;
 826         to->o0 = from->o0;
 827         to->o1 = from->o1;
 828         to->o2 = from->o2;
 829         to->o3 = from->o3;
 830         to->o4 = from->o4;
 831         to->o5 = from->o5;
 832         to->o6 = from->o6;
 833         to->o7 = from->o7;
 834         to->l0 = from->l0;
 835         to->l1 = from->l1;
 836         to->l2 = from->l2;
 837         to->l3 = from->l3;
 838         to->l4 = from->l4;
 839         to->l5 = from->l5;
 840         to->l6 = from->l6;
 841         to->l7 = from->l7;
 842         to->i0 = from->i0;
 843         to->i1 = from->i1;
 844         to->i2 = from->i2;
 845         to->i3 = from->i3;
 846         to->i4 = from->i4;
 847         to->i5 = from->i5;
 848         to->i6 = from->i6;
 849         to->i7 = from->i7;
 850     }
 851     if (flags & CONTEXT_FLOATING_POINT)
 852     {
 853         /* FIXME */
 854     }
 855 #elif defined(__powerpc__)
 856     /* Has no CPU id */
 857     if (flags & CONTEXT_CONTROL)
 858     {
 859         to->Msr = from->Msr;
 860         to->Ctr = from->Ctr;
 861         to->Iar = from->Iar;
 862     }
 863     if (flags & CONTEXT_INTEGER)
 864     {
 865         to->Gpr0  = from->Gpr0;
 866         to->Gpr1  = from->Gpr1;
 867         to->Gpr2  = from->Gpr2;
 868         to->Gpr3  = from->Gpr3;
 869         to->Gpr4  = from->Gpr4;
 870         to->Gpr5  = from->Gpr5;
 871         to->Gpr6  = from->Gpr6;
 872         to->Gpr7  = from->Gpr7;
 873         to->Gpr8  = from->Gpr8;
 874         to->Gpr9  = from->Gpr9;
 875         to->Gpr10 = from->Gpr10;
 876         to->Gpr11 = from->Gpr11;
 877         to->Gpr12 = from->Gpr12;
 878         to->Gpr13 = from->Gpr13;
 879         to->Gpr14 = from->Gpr14;
 880         to->Gpr15 = from->Gpr15;
 881         to->Gpr16 = from->Gpr16;
 882         to->Gpr17 = from->Gpr17;
 883         to->Gpr18 = from->Gpr18;
 884         to->Gpr19 = from->Gpr19;
 885         to->Gpr20 = from->Gpr20;
 886         to->Gpr21 = from->Gpr21;
 887         to->Gpr22 = from->Gpr22;
 888         to->Gpr23 = from->Gpr23;
 889         to->Gpr24 = from->Gpr24;
 890         to->Gpr25 = from->Gpr25;
 891         to->Gpr26 = from->Gpr26;
 892         to->Gpr27 = from->Gpr27;
 893         to->Gpr28 = from->Gpr28;
 894         to->Gpr29 = from->Gpr29;
 895         to->Gpr30 = from->Gpr30;
 896         to->Gpr31 = from->Gpr31;
 897         to->Xer   = from->Xer;
 898         to->Cr    = from->Cr;
 899     }
 900     if (flags & CONTEXT_FLOATING_POINT)
 901     {
 902         to->Fpr0  = from->Fpr0;
 903         to->Fpr1  = from->Fpr1;
 904         to->Fpr2  = from->Fpr2;
 905         to->Fpr3  = from->Fpr3;
 906         to->Fpr4  = from->Fpr4;
 907         to->Fpr5  = from->Fpr5;
 908         to->Fpr6  = from->Fpr6;
 909         to->Fpr7  = from->Fpr7;
 910         to->Fpr8  = from->Fpr8;
 911         to->Fpr9  = from->Fpr9;
 912         to->Fpr10 = from->Fpr10;
 913         to->Fpr11 = from->Fpr11;
 914         to->Fpr12 = from->Fpr12;
 915         to->Fpr13 = from->Fpr13;
 916         to->Fpr14 = from->Fpr14;
 917         to->Fpr15 = from->Fpr15;
 918         to->Fpr16 = from->Fpr16;
 919         to->Fpr17 = from->Fpr17;
 920         to->Fpr18 = from->Fpr18;
 921         to->Fpr19 = from->Fpr19;
 922         to->Fpr20 = from->Fpr20;
 923         to->Fpr21 = from->Fpr21;
 924         to->Fpr22 = from->Fpr22;
 925         to->Fpr23 = from->Fpr23;
 926         to->Fpr24 = from->Fpr24;
 927         to->Fpr25 = from->Fpr25;
 928         to->Fpr26 = from->Fpr26;
 929         to->Fpr27 = from->Fpr27;
 930         to->Fpr28 = from->Fpr28;
 931         to->Fpr29 = from->Fpr29;
 932         to->Fpr30 = from->Fpr30;
 933         to->Fpr31 = from->Fpr31;
 934         to->Fpscr = from->Fpscr;
 935     }
 936 #else
 937 #error You must implement context copying for your CPU
 938 #endif
 939 }
 940
 941
 942 /***********************************************************************
 943  *              NtGetContextThread  (NTDLL.@)
 944  *              ZwGetContextThread  (NTDLL.@)
 945  */
 946 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
 947 {
 948     NTSTATUS ret;
 949     CONTEXT ctx;
 950     DWORD dummy, i;
 951     DWORD needed_flags = context->ContextFlags;
 952     BOOL self = (handle == GetCurrentThread());
 953
 954 #ifdef __i386__
 955     /* on i386 debug registers always require a server call */
 956     if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
 957 #endif
 958
 959     if (!self)
 960     {
 961         SERVER_START_REQ( get_thread_context )
 962         {
 963             req->handle  = handle;
 964             req->flags   = context->ContextFlags;
 965             req->suspend = 0;
 966             wine_server_set_reply( req, &ctx, sizeof(ctx) );
 967             ret = wine_server_call( req );
 968             self = reply->self;
 969         }
 970         SERVER_END_REQ;
 971
 972         if (ret == STATUS_PENDING)
 973         {
 974             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 975             {
 976                 for (i = 0; i < 100; i++)
 977                 {
 978                     SERVER_START_REQ( get_thread_context )
 979                     {
 980                         req->handle  = handle;
 981                         req->flags   = context->ContextFlags;
 982                         req->suspend = 0;
 983                         wine_server_set_reply( req, &ctx, sizeof(ctx) );
 984                         ret = wine_server_call( req );
 985                     }
 986                     SERVER_END_REQ;
 987                     if (ret != STATUS_PENDING) break;
 988                     NtYieldExecution();
 989                 }
 990                 NtResumeThread( handle, &dummy );
 991             }
 992             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 993         }
 994         if (ret) return ret;
 995         copy_context( context, &ctx, context->ContextFlags & ctx.ContextFlags );
 996         needed_flags &= ~ctx.ContextFlags;
 997     }
 998
 999     if (self)
1000     {
1001         if (needed_flags)
1002         {
1003             get_cpu_context( &ctx );
1004             copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
1005         }
1006 #ifdef __i386__
1007         /* update the cached version of the debug registers */
1008         if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
1009         {
1010             struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
1011             regs->dr0 = context->Dr0;
1012             regs->dr1 = context->Dr1;
1013             regs->dr2 = context->Dr2;
1014             regs->dr3 = context->Dr3;
1015             regs->dr6 = context->Dr6;
1016             regs->dr7 = context->Dr7;
1017         }
1018 #endif
1019     }
1020     return STATUS_SUCCESS;
1021 }
1022
1023
1024 /******************************************************************************
1025  *              NtQueryInformationThread  (NTDLL.@)
1026  *              ZwQueryInformationThread  (NTDLL.@)
1027  */
1028 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
1029                                           void *data, ULONG length, ULONG *ret_len )
1030 {
1031     NTSTATUS status;
1032
1033     switch(class)
1034     {
1035     case ThreadBasicInformation:
1036         {
1037             THREAD_BASIC_INFORMATION info;
1038
1039             SERVER_START_REQ( get_thread_info )
1040             {
1041                 req->handle = handle;
1042                 req->tid_in = 0;
1043                 if (!(status = wine_server_call( req )))
1044                 {
1045                     info.ExitStatus             = reply->exit_code;
1046                     info.TebBaseAddress         = reply->teb;
1047                     info.ClientId.UniqueProcess = (HANDLE)reply->pid;
1048                     info.ClientId.UniqueThread  = (HANDLE)reply->tid;
1049                     info.AffinityMask           = reply->affinity;
1050                     info.Priority               = reply->priority;
1051                     info.BasePriority           = reply->priority;  /* FIXME */
1052                 }
1053             }
1054             SERVER_END_REQ;
1055             if (status == STATUS_SUCCESS)
1056             {
1057                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
1058                 if (ret_len) *ret_len = min( length, sizeof(info) );
1059             }
1060         }
1061         return status;
1062     case ThreadTimes:
1063         {
1064             KERNEL_USER_TIMES   kusrt;
1065             /* We need to do a server call to get the creation time or exit time */
1066             /* This works on any thread */
1067             SERVER_START_REQ( get_thread_info )
1068             {
1069                 req->handle = handle;
1070                 req->tid_in = 0;
1071                 status = wine_server_call( req );
1072                 if (status == STATUS_SUCCESS)
1073                 {
1074                     NTDLL_from_server_abstime( &kusrt.CreateTime, &reply->creation_time );
1075                     NTDLL_from_server_abstime( &kusrt.ExitTime, &reply->exit_time );
1076                 }
1077             }
1078             SERVER_END_REQ;
1079             if (status == STATUS_SUCCESS)
1080             {
1081                 /* We call times(2) for kernel time or user time */
1082                 /* We can only (portably) do this for the current thread */
1083                 if (handle == GetCurrentThread())
1084                 {
1085                     struct tms time_buf;
1086                     long clocks_per_sec = sysconf(_SC_CLK_TCK);
1087
1088                     times(&time_buf);
1089                     kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
1090                     kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
1091                 }
1092                 else
1093                 {
1094                     kusrt.KernelTime.QuadPart = 0;
1095                     kusrt.UserTime.QuadPart = 0;
1096                     FIXME("Cannot get kerneltime or usertime of other threads\n");
1097                 }
1098                 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
1099                 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
1100             }
1101         }
1102         return status;
1103     case ThreadDescriptorTableEntry:
1104         {
1105 #ifdef __i386__
1106             THREAD_DESCRIPTOR_INFORMATION*      tdi = data;
1107             if (length < sizeof(*tdi))
1108                 status = STATUS_INFO_LENGTH_MISMATCH;
1109             else if (!(tdi->Selector & 4))  /* GDT selector */
1110             {
1111                 unsigned sel = tdi->Selector & ~3;  /* ignore RPL */
1112                 status = STATUS_SUCCESS;
1113                 if (!sel)  /* null selector */
1114                     memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
1115                 else
1116                 {
1117                     tdi->Entry.BaseLow                   = 0;
1118                     tdi->Entry.HighWord.Bits.BaseMid     = 0;
1119                     tdi->Entry.HighWord.Bits.BaseHi      = 0;
1120                     tdi->Entry.LimitLow                  = 0xffff;
1121                     tdi->Entry.HighWord.Bits.LimitHi     = 0xf;
1122                     tdi->Entry.HighWord.Bits.Dpl         = 3;
1123                     tdi->Entry.HighWord.Bits.Sys         = 0;
1124                     tdi->Entry.HighWord.Bits.Pres        = 1;
1125                     tdi->Entry.HighWord.Bits.Granularity = 1;
1126                     tdi->Entry.HighWord.Bits.Default_Big = 1;
1127                     tdi->Entry.HighWord.Bits.Type        = 0x12;
1128                     /* it has to be one of the system GDT selectors */
1129                     if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
1130                     {
1131                         if (sel == (wine_get_cs() & ~3))
1132                             tdi->Entry.HighWord.Bits.Type |= 8;  /* code segment */
1133                         else status = STATUS_ACCESS_DENIED;
1134                     }
1135                 }
1136             }
1137             else
1138             {
1139                 SERVER_START_REQ( get_selector_entry )
1140                 {
1141                     req->handle = handle;
1142                     req->entry = tdi->Selector >> 3;
1143                     status = wine_server_call( req );
1144                     if (!status)
1145                     {
1146                         if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1147                             status = STATUS_ACCESS_VIOLATION;
1148                         else
1149                         {
1150                             wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1151                             wine_ldt_set_limit( &tdi->Entry, reply->limit );
1152                             wine_ldt_set_flags( &tdi->Entry, reply->flags );
1153                         }
1154                     }
1155                 }
1156                 SERVER_END_REQ;
1157             }
1158             if (status == STATUS_SUCCESS && ret_len)
1159                 /* yes, that's a bit strange, but it's the way it is */
1160                 *ret_len = sizeof(LDT_ENTRY);
1161 #else
1162             status = STATUS_NOT_IMPLEMENTED;
1163 #endif
1164             return status;
1165         }
1166     case ThreadAmILastThread:
1167         {
1168             SERVER_START_REQ(get_thread_info)
1169             {
1170                 req->handle = handle;
1171                 req->tid_in = 0;
1172                 status = wine_server_call( req );
1173                 if (status == STATUS_SUCCESS)
1174                 {
1175                     BOOLEAN last = reply->last;
1176                     if (data) memcpy( data, &last, min( length, sizeof(last) ));
1177                     if (ret_len) *ret_len = min( length, sizeof(last) );
1178                 }
1179             }
1180             SERVER_END_REQ;
1181             return status;
1182         }
1183     case ThreadPriority:
1184     case ThreadBasePriority:
1185     case ThreadAffinityMask:
1186     case ThreadImpersonationToken:
1187     case ThreadEnableAlignmentFaultFixup:
1188     case ThreadEventPair_Reusable:
1189     case ThreadQuerySetWin32StartAddress:
1190     case ThreadZeroTlsCell:
1191     case ThreadPerformanceCount:
1192     case ThreadIdealProcessor:
1193     case ThreadPriorityBoost:
1194     case ThreadSetTlsArrayAddress:
1195     case ThreadIsIoPending:
1196     default:
1197         FIXME( "info class %d not supported yet\n", class );
1198         return STATUS_NOT_IMPLEMENTED;
1199     }
1200 }
1201
1202
1203 /******************************************************************************
1204  *              NtSetInformationThread  (NTDLL.@)
1205  *              ZwSetInformationThread  (NTDLL.@)
1206  */
1207 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1208                                         LPCVOID data, ULONG length )
1209 {
1210     NTSTATUS status;
1211     switch(class)
1212     {
1213     case ThreadZeroTlsCell:
1214         if (handle == GetCurrentThread())
1215         {
1216             LIST_ENTRY *entry;
1217             DWORD index;
1218
1219             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1220             index = *(const DWORD *)data;
1221             if (index < TLS_MINIMUM_AVAILABLE)
1222             {
1223                 RtlAcquirePebLock();
1224                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1225                 {
1226                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1227                     teb->TlsSlots[index] = 0;
1228                 }
1229                 RtlReleasePebLock();
1230             }
1231             else
1232             {
1233                 index -= TLS_MINIMUM_AVAILABLE;
1234                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1235                     return STATUS_INVALID_PARAMETER;
1236                 RtlAcquirePebLock();
1237                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1238                 {
1239                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1240                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1241                 }
1242                 RtlReleasePebLock();
1243             }
1244             return STATUS_SUCCESS;
1245         }
1246         FIXME( "ZeroTlsCell not supported on other threads\n" );
1247         return STATUS_NOT_IMPLEMENTED;
1248
1249     case ThreadImpersonationToken:
1250         {
1251             const HANDLE *phToken = data;
1252             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1253             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1254             SERVER_START_REQ( set_thread_info )
1255             {
1256                 req->handle   = handle;
1257                 req->token    = *phToken;
1258                 req->mask     = SET_THREAD_INFO_TOKEN;
1259                 status = wine_server_call( req );
1260             }
1261             SERVER_END_REQ;
1262         }
1263         return status;
1264     case ThreadBasePriority:
1265         {
1266             const DWORD *pprio = data;
1267             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1268             SERVER_START_REQ( set_thread_info )
1269             {
1270                 req->handle   = handle;
1271                 req->priority = *pprio;
1272                 req->mask     = SET_THREAD_INFO_PRIORITY;
1273                 status = wine_server_call( req );
1274             }
1275             SERVER_END_REQ;
1276         }
1277         return status;
1278     case ThreadAffinityMask:
1279         {
1280             const DWORD *paff = data;
1281             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1282             SERVER_START_REQ( set_thread_info )
1283             {
1284                 req->handle   = handle;
1285                 req->affinity = *paff;
1286                 req->mask     = SET_THREAD_INFO_AFFINITY;
1287                 status = wine_server_call( req );
1288             }
1289             SERVER_END_REQ;
1290         }
1291         return status;
1292     case ThreadBasicInformation:
1293     case ThreadTimes:
1294     case ThreadPriority:
1295     case ThreadDescriptorTableEntry:
1296     case ThreadEnableAlignmentFaultFixup:
1297     case ThreadEventPair_Reusable:
1298     case ThreadQuerySetWin32StartAddress:
1299     case ThreadPerformanceCount:
1300     case ThreadAmILastThread:
1301     case ThreadIdealProcessor:
1302     case ThreadPriorityBoost:
1303     case ThreadSetTlsArrayAddress:
1304     case ThreadIsIoPending:
1305     default:
1306         FIXME( "info class %d not supported yet\n", class );
1307         return STATUS_NOT_IMPLEMENTED;
1308     }
1309 }
1310
1311
1312 /**********************************************************************
1313  *           NtCurrentTeb   (NTDLL.@)
1314  */
1315 #if defined(__i386__) && defined(__GNUC__)
1316
1317 __ASM_GLOBAL_FUNC( NtCurrentTeb, ".byte 0x64\n\tmovl 0x18,%eax\n\tret" )
1318
1319 #elif defined(__i386__) && defined(_MSC_VER)
1320
1321 /* Nothing needs to be done. MS C "magically" exports the inline version from winnt.h */
1322
1323 #else
1324
1325 /**********************************************************************/
1326
1327 TEB * WINAPI NtCurrentTeb(void)
1328 {
1329     return pthread_functions.get_current_teb();
1330 }
1331
1332 #endif  /* __i386__ */