git.oblomov.eu Git - wine/blob - dlls/ntdll/thread.c

   1 /*
   2  * NT threads support
   3  *
   4  * Copyright 1996, 2003 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <assert.h>
  25 #include <stdarg.h>
  26 #include <sys/types.h>
  27 #ifdef HAVE_SYS_MMAN_H
  28 #include <sys/mman.h>
  29 #endif
  30 #ifdef HAVE_SYS_TIMES_H
  31 #include <sys/times.h>
  32 #endif
  33
  34 #define NONAMELESSUNION
  35 #include "ntstatus.h"
  36 #define WIN32_NO_STATUS
  37 #include "winternl.h"
  38 #include "wine/library.h"
  39 #include "wine/server.h"
  40 #include "wine/pthread.h"
  41 #include "wine/debug.h"
  42 #include "ntdll_misc.h"
  43 #include "ddk/wdm.h"
  44 #include "wine/exception.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  47 WINE_DECLARE_DEBUG_CHANNEL(relay);
  48
  49 struct _KUSER_SHARED_DATA *user_shared_data = NULL;
  50
  51 PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter = NULL;
  52
  53 /* info passed to a starting thread */
  54 struct startup_info
  55 {
  56     TEB                            *teb;
  57     PRTL_THREAD_START_ROUTINE       entry_point;
  58     void                           *entry_arg;
  59 };
  60
  61 static PEB_LDR_DATA ldr;
  62 static RTL_USER_PROCESS_PARAMETERS params;  /* default parameters if no parent */
  63 static WCHAR current_dir[MAX_NT_PATH_LENGTH];
  64 static RTL_BITMAP tls_bitmap;
  65 static RTL_BITMAP tls_expansion_bitmap;
  66 static RTL_BITMAP fls_bitmap;
  67 static LIST_ENTRY tls_links;
  68 static size_t sigstack_total_size;
  69 static ULONG sigstack_zero_bits;
  70 static int nb_threads = 1;
  71
  72 static struct wine_pthread_functions pthread_functions;
  73
  74
  75 static RTL_CRITICAL_SECTION ldt_section;
  76 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
  77 {
  78     0, 0, &ldt_section,
  79     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  80       0, 0, { (DWORD_PTR)(__FILE__ ": ldt_section") }
  81 };
  82 static RTL_CRITICAL_SECTION ldt_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  83 static sigset_t ldt_sigset;
  84
  85 /***********************************************************************
  86  *           locking for LDT routines
  87  */
  88 static void ldt_lock(void)
  89 {
  90     sigset_t sigset;
  91
  92     pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
  93     RtlEnterCriticalSection( &ldt_section );
  94     if (ldt_section.RecursionCount == 1) ldt_sigset = sigset;
  95 }
  96
  97 static void ldt_unlock(void)
  98 {
  99     if (ldt_section.RecursionCount == 1)
 100     {
 101         sigset_t sigset = ldt_sigset;
 102         RtlLeaveCriticalSection( &ldt_section );
 103         pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 104     }
 105     else RtlLeaveCriticalSection( &ldt_section );
 106 }
 107
 108
 109 /***********************************************************************
 110  *           init_teb
 111  */
 112 static inline NTSTATUS init_teb( TEB *teb )
 113 {
 114     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 115
 116     teb->Tib.ExceptionList = (void *)~0UL;
 117     teb->Tib.StackBase     = (void *)~0UL;
 118     teb->Tib.Self          = &teb->Tib;
 119     teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
 120     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
 121
 122     if (!(thread_data->fs = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
 123     thread_data->request_fd = -1;
 124     thread_data->reply_fd   = -1;
 125     thread_data->wait_fd[0] = -1;
 126     thread_data->wait_fd[1] = -1;
 127
 128     return STATUS_SUCCESS;
 129 }
 130
 131
 132 /***********************************************************************
 133  *           fix_unicode_string
 134  *
 135  * Make sure the unicode string doesn't point beyond the end pointer
 136  */
 137 static inline void fix_unicode_string( UNICODE_STRING *str, const char *end_ptr )
 138 {
 139     if ((char *)str->Buffer >= end_ptr)
 140     {
 141         str->Length = str->MaximumLength = 0;
 142         str->Buffer = NULL;
 143         return;
 144     }
 145     if ((char *)str->Buffer + str->MaximumLength > end_ptr)
 146     {
 147         str->MaximumLength = (end_ptr - (char *)str->Buffer) & ~(sizeof(WCHAR) - 1);
 148     }
 149     if (str->Length >= str->MaximumLength)
 150     {
 151         if (str->MaximumLength >= sizeof(WCHAR))
 152             str->Length = str->MaximumLength - sizeof(WCHAR);
 153         else
 154             str->Length = str->MaximumLength = 0;
 155     }
 156 }
 157
 158
 159 /***********************************************************************
 160  *           init_user_process_params
 161  *
 162  * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
 163  */
 164 static NTSTATUS init_user_process_params( SIZE_T info_size, HANDLE *exe_file )
 165 {
 166     void *ptr;
 167     SIZE_T env_size;
 168     NTSTATUS status;
 169     RTL_USER_PROCESS_PARAMETERS *params = NULL;
 170
 171     status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &info_size,
 172                                       MEM_COMMIT, PAGE_READWRITE );
 173     if (status != STATUS_SUCCESS) return status;
 174
 175     params->AllocationSize = info_size;
 176     NtCurrentTeb()->Peb->ProcessParameters = params;
 177
 178     SERVER_START_REQ( get_startup_info )
 179     {
 180         wine_server_set_reply( req, params, info_size );
 181         if (!(status = wine_server_call( req )))
 182         {
 183             info_size = wine_server_reply_size( reply );
 184             *exe_file = wine_server_ptr_handle( reply->exe_file );
 185             params->hStdInput  = wine_server_ptr_handle( reply->hstdin );
 186             params->hStdOutput = wine_server_ptr_handle( reply->hstdout );
 187             params->hStdError  = wine_server_ptr_handle( reply->hstderr );
 188         }
 189     }
 190     SERVER_END_REQ;
 191     if (status != STATUS_SUCCESS) return status;
 192
 193     if (params->Size > info_size) params->Size = info_size;
 194
 195     /* make sure the strings are valid */
 196     fix_unicode_string( &params->CurrentDirectory.DosPath, (char *)info_size );
 197     fix_unicode_string( &params->DllPath, (char *)info_size );
 198     fix_unicode_string( &params->ImagePathName, (char *)info_size );
 199     fix_unicode_string( &params->CommandLine, (char *)info_size );
 200     fix_unicode_string( &params->WindowTitle, (char *)info_size );
 201     fix_unicode_string( &params->Desktop, (char *)info_size );
 202     fix_unicode_string( &params->ShellInfo, (char *)info_size );
 203     fix_unicode_string( &params->RuntimeInfo, (char *)info_size );
 204
 205     /* environment needs to be a separate memory block */
 206     env_size = info_size - params->Size;
 207     if (!env_size) env_size = 1;
 208     ptr = NULL;
 209     status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &env_size,
 210                                       MEM_COMMIT, PAGE_READWRITE );
 211     if (status != STATUS_SUCCESS) return status;
 212     memcpy( ptr, (char *)params + params->Size, info_size - params->Size );
 213     params->Environment = ptr;
 214
 215     RtlNormalizeProcessParams( params );
 216     return status;
 217 }
 218
 219
 220 /***********************************************************************
 221  *           thread_init
 222  *
 223  * Setup the initial thread.
 224  *
 225  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 226  */
 227 HANDLE thread_init(void)
 228 {
 229     PEB *peb;
 230     TEB *teb;
 231     void *addr;
 232     SIZE_T size, info_size;
 233     HANDLE exe_file = 0;
 234     LARGE_INTEGER now;
 235     struct ntdll_thread_data *thread_data;
 236     static struct debug_info debug_info;  /* debug info for initial thread */
 237
 238     virtual_init();
 239
 240     /* reserve space for shared user data */
 241
 242     addr = (void *)0x7ffe0000;
 243     size = 0x10000;
 244     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE );
 245     user_shared_data = addr;
 246
 247     /* allocate and initialize the PEB */
 248
 249     addr = NULL;
 250     size = sizeof(*peb);
 251     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 1, &size,
 252                              MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 253     peb = addr;
 254
 255     peb->NumberOfProcessors = 1;
 256     peb->ProcessParameters  = &params;
 257     peb->TlsBitmap          = &tls_bitmap;
 258     peb->TlsExpansionBitmap = &tls_expansion_bitmap;
 259     peb->FlsBitmap          = &fls_bitmap;
 260     peb->LdrData            = &ldr;
 261     params.CurrentDirectory.DosPath.Buffer = current_dir;
 262     params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
 263     params.wShowWindow = 1; /* SW_SHOWNORMAL */
 264     RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 );
 265     RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits,
 266                          sizeof(peb->TlsExpansionBitmapBits) * 8 );
 267     RtlInitializeBitMap( &fls_bitmap, peb->FlsBitmapBits, sizeof(peb->FlsBitmapBits) * 8 );
 268     InitializeListHead( &peb->FlsListHead );
 269     InitializeListHead( &ldr.InLoadOrderModuleList );
 270     InitializeListHead( &ldr.InMemoryOrderModuleList );
 271     InitializeListHead( &ldr.InInitializationOrderModuleList );
 272     InitializeListHead( &tls_links );
 273
 274     /* allocate and initialize the initial TEB */
 275
 276     sigstack_total_size = get_signal_stack_total_size();
 277     while (1U << sigstack_zero_bits < sigstack_total_size) sigstack_zero_bits++;
 278     assert( 1U << sigstack_zero_bits == sigstack_total_size );  /* must be a power of 2 */
 279     assert( sigstack_total_size >= sizeof(TEB) + sizeof(struct startup_info) );
 280
 281     addr = NULL;
 282     size = sigstack_total_size;
 283     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 284                              &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 285     teb = addr;
 286     teb->Peb = peb;
 287     init_teb( teb );
 288     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 289     thread_data->debug_info = &debug_info;
 290     InsertHeadList( &tls_links, &teb->TlsLinks );
 291
 292     wine_pthread_get_functions( &pthread_functions, sizeof(pthread_functions) );
 293     signal_init_thread( teb );
 294     virtual_init_threading();
 295
 296     debug_info.str_pos = debug_info.strings;
 297     debug_info.out_pos = debug_info.output;
 298     debug_init();
 299
 300     /* setup the server connection */
 301     server_init_process();
 302     info_size = server_init_thread( NULL );
 303
 304     /* create the process heap */
 305     if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
 306     {
 307         MESSAGE( "wine: failed to create the process heap\n" );
 308         exit(1);
 309     }
 310
 311     /* allocate user parameters */
 312     if (info_size)
 313     {
 314         init_user_process_params( info_size, &exe_file );
 315     }
 316     else
 317     {
 318         /* This is wine specific: we have no parent (we're started from unix)
 319          * so, create a simple console with bare handles to unix stdio
 320          */
 321         wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE,  OBJ_INHERIT, &params.hStdInput );
 322         wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
 323         wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
 324     }
 325
 326     /* initialize LDT locking */
 327     wine_ldt_init_locking( ldt_lock, ldt_unlock );
 328
 329     /* initialize time values in user_shared_data */
 330     NtQuerySystemTime( &now );
 331     user_shared_data->SystemTime.LowPart = now.u.LowPart;
 332     user_shared_data->SystemTime.High1Time = user_shared_data->SystemTime.High2Time = now.u.HighPart;
 333     user_shared_data->u.TickCountQuad = (now.QuadPart - server_start_time) / 10000;
 334     user_shared_data->u.TickCount.High2Time = user_shared_data->u.TickCount.High1Time;
 335     user_shared_data->TickCountLowDeprecated = user_shared_data->u.TickCount.LowPart;
 336     user_shared_data->TickCountMultiplier = 1 << 24;
 337
 338     pthread_init();
 339     return exe_file;
 340 }
 341
 342
 343 /***********************************************************************
 344  *           abort_thread
 345  */
 346 void abort_thread( int status )
 347 {
 348     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 349     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1) _exit( status );
 350
 351     close( ntdll_get_thread_data()->wait_fd[0] );
 352     close( ntdll_get_thread_data()->wait_fd[1] );
 353     close( ntdll_get_thread_data()->reply_fd );
 354     close( ntdll_get_thread_data()->request_fd );
 355     pthread_exit( UIntToPtr(status) );
 356 }
 357
 358
 359 /***********************************************************************
 360  *           exit_thread
 361  */
 362 static void DECLSPEC_NORETURN exit_thread( int status )
 363 {
 364     static void *prev_teb;
 365     TEB *teb;
 366
 367     RtlAcquirePebLock();
 368     RemoveEntryList( &NtCurrentTeb()->TlsLinks );
 369     RtlReleasePebLock();
 370     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots );
 371     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
 372
 373     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 374     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1) exit( status );
 375
 376     if ((teb = interlocked_xchg_ptr( &prev_teb, NtCurrentTeb() )))
 377     {
 378         struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 379         SIZE_T size;
 380
 381         pthread_join( thread_data->pthread_id, NULL );
 382         wine_ldt_free_fs( thread_data->fs );
 383         size = 0;
 384         NtFreeVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
 385         size = 0;
 386         NtFreeVirtualMemory( GetCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
 387     }
 388
 389     close( ntdll_get_thread_data()->wait_fd[0] );
 390     close( ntdll_get_thread_data()->wait_fd[1] );
 391     close( ntdll_get_thread_data()->reply_fd );
 392     close( ntdll_get_thread_data()->request_fd );
 393     pthread_exit( UIntToPtr(status) );
 394 }
 395
 396
 397 #ifdef __i386__
 398 /* wrapper for apps that don't declare the thread function correctly */
 399 extern DWORD call_thread_entry_point( PRTL_THREAD_START_ROUTINE entry, void *arg );
 400 __ASM_GLOBAL_FUNC(call_thread_entry_point,
 401                   "pushl %ebp\n\t"
 402                   "movl %esp,%ebp\n\t"
 403                   "subl $4,%esp\n\t"
 404                   "pushl 12(%ebp)\n\t"
 405                   "movl 8(%ebp),%eax\n\t"
 406                   "call *%eax\n\t"
 407                   "leave\n\t"
 408                   "ret" )
 409 #else
 410 static inline DWORD call_thread_entry_point( PRTL_THREAD_START_ROUTINE entry, void *arg )
 411 {
 412     LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)entry;
 413     return func( arg );
 414 }
 415 #endif
 416
 417 /***********************************************************************
 418  *           call_thread_func
 419  *
 420  * Hack to make things compatible with the thread procedures used by kernel32.CreateThread.
 421  */
 422 static void DECLSPEC_NORETURN call_thread_func( PRTL_THREAD_START_ROUTINE rtl_func, void *arg )
 423 {
 424     DWORD exit_code;
 425     BOOL last;
 426
 427     MODULE_DllThreadAttach( NULL );
 428
 429     if (TRACE_ON(relay))
 430         DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), rtl_func, arg );
 431
 432     exit_code = call_thread_entry_point( rtl_func, arg );
 433
 434     /* send the exit code to the server */
 435     SERVER_START_REQ( terminate_thread )
 436     {
 437         req->handle    = wine_server_obj_handle( GetCurrentThread() );
 438         req->exit_code = exit_code;
 439         wine_server_call( req );
 440         last = reply->last;
 441     }
 442     SERVER_END_REQ;
 443
 444     if (last)
 445     {
 446         LdrShutdownProcess();
 447         exit( exit_code );
 448     }
 449     else
 450     {
 451         LdrShutdownThread();
 452         exit_thread( exit_code );
 453     }
 454 }
 455
 456
 457 /***********************************************************************
 458  *           start_thread
 459  *
 460  * Startup routine for a newly created thread.
 461  */
 462 static void start_thread( struct startup_info *info )
 463 {
 464     TEB *teb = info->teb;
 465     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 466     PRTL_THREAD_START_ROUTINE func = info->entry_point;
 467     void *arg = info->entry_arg;
 468     struct debug_info debug_info;
 469
 470     debug_info.str_pos = debug_info.strings;
 471     debug_info.out_pos = debug_info.output;
 472     thread_data->debug_info = &debug_info;
 473     thread_data->pthread_id = pthread_self();
 474
 475     signal_init_thread( teb );
 476     server_init_thread( func );
 477     pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
 478
 479     RtlAcquirePebLock();
 480     InsertHeadList( &tls_links, &teb->TlsLinks );
 481     RtlReleasePebLock();
 482
 483     /* NOTE: Windows does not have an exception handler around the call to
 484      * the thread attach. We do for ease of debugging */
 485     if (unhandled_exception_filter)
 486     {
 487         __TRY
 488         {
 489             call_thread_func( func, arg );
 490         }
 491         __EXCEPT(unhandled_exception_filter)
 492         {
 493             NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
 494         }
 495         __ENDTRY
 496     }
 497     else
 498         call_thread_func( func, arg );
 499 }
 500
 501
 502 /***********************************************************************
 503  *              RtlCreateUserThread   (NTDLL.@)
 504  */
 505 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 506                                      BOOLEAN suspended, PVOID stack_addr,
 507                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 508                                      PRTL_THREAD_START_ROUTINE start, void *param,
 509                                      HANDLE *handle_ptr, CLIENT_ID *id )
 510 {
 511     sigset_t sigset;
 512     pthread_t pthread_id;
 513     pthread_attr_t attr;
 514     struct ntdll_thread_data *thread_data = NULL;
 515     struct ntdll_thread_regs *thread_regs;
 516     struct startup_info *info = NULL;
 517     void *addr = NULL;
 518     HANDLE handle = 0;
 519     TEB *teb;
 520     DWORD tid = 0;
 521     int request_pipe[2];
 522     NTSTATUS status;
 523     SIZE_T size;
 524
 525     if (process != NtCurrentProcess())
 526     {
 527         apc_call_t call;
 528         apc_result_t result;
 529
 530         memset( &call, 0, sizeof(call) );
 531
 532         call.create_thread.type    = APC_CREATE_THREAD;
 533         call.create_thread.func    = wine_server_client_ptr( start );
 534         call.create_thread.arg     = wine_server_client_ptr( param );
 535         call.create_thread.reserve = stack_reserve;
 536         call.create_thread.commit  = stack_commit;
 537         call.create_thread.suspend = suspended;
 538         status = NTDLL_queue_process_apc( process, &call, &result );
 539         if (status != STATUS_SUCCESS) return status;
 540
 541         if (result.create_thread.status == STATUS_SUCCESS)
 542         {
 543             if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid);
 544             if (handle_ptr) *handle_ptr = wine_server_ptr_handle( result.create_thread.handle );
 545             else NtClose( wine_server_ptr_handle( result.create_thread.handle ));
 546         }
 547         return result.create_thread.status;
 548     }
 549
 550     if (pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 551     fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
 552     wine_server_send_fd( request_pipe[0] );
 553
 554     SERVER_START_REQ( new_thread )
 555     {
 556         req->access     = THREAD_ALL_ACCESS;
 557         req->attributes = 0;  /* FIXME */
 558         req->suspend    = suspended;
 559         req->request_fd = request_pipe[0];
 560         if (!(status = wine_server_call( req )))
 561         {
 562             handle = wine_server_ptr_handle( reply->handle );
 563             tid = reply->tid;
 564         }
 565         close( request_pipe[0] );
 566     }
 567     SERVER_END_REQ;
 568
 569     if (status)
 570     {
 571         close( request_pipe[1] );
 572         return status;
 573     }
 574
 575     pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
 576
 577     addr = NULL;
 578     size = sigstack_total_size;
 579     if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 580                                            &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
 581         goto error;
 582     teb = addr;
 583     teb->Peb = NtCurrentTeb()->Peb;
 584     info = (struct startup_info *)(teb + 1);
 585     info->teb         = teb;
 586     info->entry_point = start;
 587     info->entry_arg   = param;
 588
 589     if ((status = init_teb( teb ))) goto error;
 590
 591     teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId());
 592     teb->ClientId.UniqueThread  = ULongToHandle(tid);
 593
 594     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 595     thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
 596     thread_data->request_fd  = request_pipe[1];
 597
 598     /* inherit debug registers from parent thread */
 599     thread_regs->dr0 = ntdll_get_thread_regs()->dr0;
 600     thread_regs->dr1 = ntdll_get_thread_regs()->dr1;
 601     thread_regs->dr2 = ntdll_get_thread_regs()->dr2;
 602     thread_regs->dr3 = ntdll_get_thread_regs()->dr3;
 603     thread_regs->dr6 = ntdll_get_thread_regs()->dr6;
 604     thread_regs->dr7 = ntdll_get_thread_regs()->dr7;
 605
 606     if ((status = virtual_alloc_thread_stack( teb, stack_reserve, stack_commit ))) goto error;
 607
 608     pthread_attr_init( &attr );
 609     pthread_attr_setstack( &attr, teb->DeallocationStack,
 610                            (char *)teb->Tib.StackBase - (char *)teb->DeallocationStack );
 611     pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM ); /* force creating a kernel thread */
 612     interlocked_xchg_add( &nb_threads, 1 );
 613     if (pthread_create( &pthread_id, &attr, (void * (*)(void *))start_thread, info ))
 614     {
 615         interlocked_xchg_add( &nb_threads, -1 );
 616         pthread_attr_destroy( &attr );
 617         size = 0;
 618         NtFreeVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
 619         status = STATUS_NO_MEMORY;
 620         goto error;
 621     }
 622     pthread_attr_destroy( &attr );
 623     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 624
 625     if (id) id->UniqueThread = ULongToHandle(tid);
 626     if (handle_ptr) *handle_ptr = handle;
 627     else NtClose( handle );
 628
 629     return STATUS_SUCCESS;
 630
 631 error:
 632     if (thread_data) wine_ldt_free_fs( thread_data->fs );
 633     if (addr)
 634     {
 635         size = 0;
 636         NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
 637     }
 638     if (handle) NtClose( handle );
 639     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 640     close( request_pipe[1] );
 641     return status;
 642 }
 643
 644
 645 /***********************************************************************
 646  *           RtlExitUserThread  (NTDLL.@)
 647  */
 648 void WINAPI RtlExitUserThread( ULONG status )
 649 {
 650     BOOL last;
 651
 652     SERVER_START_REQ( terminate_thread )
 653     {
 654         /* send the exit code to the server */
 655         req->handle    = wine_server_obj_handle( GetCurrentThread() );
 656         req->exit_code = status;
 657         wine_server_call( req );
 658         last = reply->last;
 659     }
 660     SERVER_END_REQ;
 661
 662     if (last)
 663     {
 664         LdrShutdownProcess();
 665         exit( status );
 666     }
 667     else
 668     {
 669         LdrShutdownThread();
 670         exit_thread( status );
 671     }
 672 }
 673
 674
 675 /***********************************************************************
 676  *              NtOpenThread   (NTDLL.@)
 677  *              ZwOpenThread   (NTDLL.@)
 678  */
 679 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 680                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 681 {
 682     NTSTATUS ret;
 683
 684     SERVER_START_REQ( open_thread )
 685     {
 686         req->tid        = HandleToULong(id->UniqueThread);
 687         req->access     = access;
 688         req->attributes = attr ? attr->Attributes : 0;
 689         ret = wine_server_call( req );
 690         *handle = wine_server_ptr_handle( reply->handle );
 691     }
 692     SERVER_END_REQ;
 693     return ret;
 694 }
 695
 696
 697 /******************************************************************************
 698  *              NtSuspendThread   (NTDLL.@)
 699  *              ZwSuspendThread   (NTDLL.@)
 700  */
 701 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 702 {
 703     NTSTATUS ret;
 704
 705     SERVER_START_REQ( suspend_thread )
 706     {
 707         req->handle = wine_server_obj_handle( handle );
 708         if (!(ret = wine_server_call( req ))) *count = reply->count;
 709     }
 710     SERVER_END_REQ;
 711     return ret;
 712 }
 713
 714
 715 /******************************************************************************
 716  *              NtResumeThread   (NTDLL.@)
 717  *              ZwResumeThread   (NTDLL.@)
 718  */
 719 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 720 {
 721     NTSTATUS ret;
 722
 723     SERVER_START_REQ( resume_thread )
 724     {
 725         req->handle = wine_server_obj_handle( handle );
 726         if (!(ret = wine_server_call( req ))) *count = reply->count;
 727     }
 728     SERVER_END_REQ;
 729     return ret;
 730 }
 731
 732
 733 /******************************************************************************
 734  *              NtAlertResumeThread   (NTDLL.@)
 735  *              ZwAlertResumeThread   (NTDLL.@)
 736  */
 737 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
 738 {
 739     FIXME( "stub: should alert thread %p\n", handle );
 740     return NtResumeThread( handle, count );
 741 }
 742
 743
 744 /******************************************************************************
 745  *              NtAlertThread   (NTDLL.@)
 746  *              ZwAlertThread   (NTDLL.@)
 747  */
 748 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
 749 {
 750     FIXME( "stub: %p\n", handle );
 751     return STATUS_NOT_IMPLEMENTED;
 752 }
 753
 754
 755 /******************************************************************************
 756  *              NtTerminateThread  (NTDLL.@)
 757  *              ZwTerminateThread  (NTDLL.@)
 758  */
 759 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 760 {
 761     NTSTATUS ret;
 762     BOOL self, last;
 763
 764     SERVER_START_REQ( terminate_thread )
 765     {
 766         req->handle    = wine_server_obj_handle( handle );
 767         req->exit_code = exit_code;
 768         ret = wine_server_call( req );
 769         self = !ret && reply->self;
 770         last = reply->last;
 771     }
 772     SERVER_END_REQ;
 773
 774     if (self)
 775     {
 776         if (last) _exit( exit_code );
 777         else abort_thread( exit_code );
 778     }
 779     return ret;
 780 }
 781
 782
 783 /******************************************************************************
 784  *              NtQueueApcThread  (NTDLL.@)
 785  */
 786 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 787                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 788 {
 789     NTSTATUS ret;
 790     SERVER_START_REQ( queue_apc )
 791     {
 792         req->handle = wine_server_obj_handle( handle );
 793         if (func)
 794         {
 795             req->call.type         = APC_USER;
 796             req->call.user.func    = wine_server_client_ptr( func );
 797             req->call.user.args[0] = arg1;
 798             req->call.user.args[1] = arg2;
 799             req->call.user.args[2] = arg3;
 800         }
 801         else req->call.type = APC_NONE;  /* wake up only */
 802         ret = wine_server_call( req );
 803     }
 804     SERVER_END_REQ;
 805     return ret;
 806 }
 807
 808
 809 /***********************************************************************
 810  *              NtSetContextThread  (NTDLL.@)
 811  *              ZwSetContextThread  (NTDLL.@)
 812  */
 813 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 814 {
 815     NTSTATUS ret;
 816     DWORD dummy, i;
 817     BOOL self = FALSE;
 818
 819 #ifdef __i386__
 820     /* on i386 debug registers always require a server call */
 821     self = (handle == GetCurrentThread());
 822     if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
 823     {
 824         struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 825         self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 &&
 826                 regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 &&
 827                 regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7);
 828     }
 829 #endif
 830
 831     if (!self)
 832     {
 833         SERVER_START_REQ( set_thread_context )
 834         {
 835             req->handle  = wine_server_obj_handle( handle );
 836             req->flags   = context->ContextFlags;
 837             req->suspend = 0;
 838             wine_server_add_data( req, context, sizeof(*context) );
 839             ret = wine_server_call( req );
 840             self = reply->self;
 841         }
 842         SERVER_END_REQ;
 843
 844         if (ret == STATUS_PENDING)
 845         {
 846             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 847             {
 848                 for (i = 0; i < 100; i++)
 849                 {
 850                     SERVER_START_REQ( set_thread_context )
 851                     {
 852                         req->handle  = wine_server_obj_handle( handle );
 853                         req->flags   = context->ContextFlags;
 854                         req->suspend = 0;
 855                         wine_server_add_data( req, context, sizeof(*context) );
 856                         ret = wine_server_call( req );
 857                     }
 858                     SERVER_END_REQ;
 859                     if (ret == STATUS_PENDING)
 860                     {
 861                         LARGE_INTEGER timeout;
 862                         timeout.QuadPart = -10000;
 863                         NtDelayExecution( FALSE, &timeout );
 864                     }
 865                     else break;
 866                 }
 867                 NtResumeThread( handle, &dummy );
 868             }
 869             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 870         }
 871
 872         if (ret) return ret;
 873     }
 874
 875     if (self) set_cpu_context( context );
 876     return STATUS_SUCCESS;
 877 }
 878
 879
 880 /* copy a context structure according to the flags */
 881 static inline void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
 882 {
 883 #ifdef __i386__
 884     flags &= ~CONTEXT_i386;  /* get rid of CPU id */
 885     if (flags & CONTEXT_INTEGER)
 886     {
 887         to->Eax = from->Eax;
 888         to->Ebx = from->Ebx;
 889         to->Ecx = from->Ecx;
 890         to->Edx = from->Edx;
 891         to->Esi = from->Esi;
 892         to->Edi = from->Edi;
 893     }
 894     if (flags & CONTEXT_CONTROL)
 895     {
 896         to->Ebp    = from->Ebp;
 897         to->Esp    = from->Esp;
 898         to->Eip    = from->Eip;
 899         to->SegCs  = from->SegCs;
 900         to->SegSs  = from->SegSs;
 901         to->EFlags = from->EFlags;
 902     }
 903     if (flags & CONTEXT_SEGMENTS)
 904     {
 905         to->SegDs = from->SegDs;
 906         to->SegEs = from->SegEs;
 907         to->SegFs = from->SegFs;
 908         to->SegGs = from->SegGs;
 909     }
 910     if (flags & CONTEXT_DEBUG_REGISTERS)
 911     {
 912         to->Dr0 = from->Dr0;
 913         to->Dr1 = from->Dr1;
 914         to->Dr2 = from->Dr2;
 915         to->Dr3 = from->Dr3;
 916         to->Dr6 = from->Dr6;
 917         to->Dr7 = from->Dr7;
 918     }
 919     if (flags & CONTEXT_FLOATING_POINT)
 920     {
 921         to->FloatSave = from->FloatSave;
 922     }
 923     if (flags & CONTEXT_EXTENDED_REGISTERS)
 924     {
 925         memcpy( to->ExtendedRegisters, from->ExtendedRegisters, sizeof(to->ExtendedRegisters) );
 926     }
 927 #elif defined(__x86_64__)
 928     flags &= ~CONTEXT_AMD64;  /* get rid of CPU id */
 929     if (flags & CONTEXT_CONTROL)
 930     {
 931         to->Rbp    = from->Rbp;
 932         to->Rip    = from->Rip;
 933         to->Rsp    = from->Rsp;
 934         to->SegCs  = from->SegCs;
 935         to->SegSs  = from->SegSs;
 936         to->EFlags = from->EFlags;
 937         to->MxCsr  = from->MxCsr;
 938     }
 939     if (flags & CONTEXT_INTEGER)
 940     {
 941         to->Rax = from->Rax;
 942         to->Rcx = from->Rcx;
 943         to->Rdx = from->Rdx;
 944         to->Rbx = from->Rbx;
 945         to->Rsi = from->Rsi;
 946         to->Rdi = from->Rdi;
 947         to->R8  = from->R8;
 948         to->R9  = from->R9;
 949         to->R10 = from->R10;
 950         to->R11 = from->R11;
 951         to->R12 = from->R12;
 952         to->R13 = from->R13;
 953         to->R14 = from->R14;
 954         to->R15 = from->R15;
 955     }
 956     if (flags & CONTEXT_SEGMENTS)
 957     {
 958         to->SegDs = from->SegDs;
 959         to->SegEs = from->SegEs;
 960         to->SegFs = from->SegFs;
 961         to->SegGs = from->SegGs;
 962     }
 963     if (flags & CONTEXT_FLOATING_POINT)
 964     {
 965         to->u.FltSave = from->u.FltSave;
 966     }
 967     if (flags & CONTEXT_DEBUG_REGISTERS)
 968     {
 969         to->Dr0 = from->Dr0;
 970         to->Dr1 = from->Dr1;
 971         to->Dr2 = from->Dr2;
 972         to->Dr3 = from->Dr3;
 973         to->Dr6 = from->Dr6;
 974         to->Dr7 = from->Dr7;
 975     }
 976 #elif defined(__sparc__)
 977     flags &= ~CONTEXT_SPARC;  /* get rid of CPU id */
 978     if (flags & CONTEXT_CONTROL)
 979     {
 980         to->psr = from->psr;
 981         to->pc  = from->pc;
 982         to->npc = from->npc;
 983         to->y   = from->y;
 984         to->wim = from->wim;
 985         to->tbr = from->tbr;
 986     }
 987     if (flags & CONTEXT_INTEGER)
 988     {
 989         to->g0 = from->g0;
 990         to->g1 = from->g1;
 991         to->g2 = from->g2;
 992         to->g3 = from->g3;
 993         to->g4 = from->g4;
 994         to->g5 = from->g5;
 995         to->g6 = from->g6;
 996         to->g7 = from->g7;
 997         to->o0 = from->o0;
 998         to->o1 = from->o1;
 999         to->o2 = from->o2;
1000         to->o3 = from->o3;
1001         to->o4 = from->o4;
1002         to->o5 = from->o5;
1003         to->o6 = from->o6;
1004         to->o7 = from->o7;
1005         to->l0 = from->l0;
1006         to->l1 = from->l1;
1007         to->l2 = from->l2;
1008         to->l3 = from->l3;
1009         to->l4 = from->l4;
1010         to->l5 = from->l5;
1011         to->l6 = from->l6;
1012         to->l7 = from->l7;
1013         to->i0 = from->i0;
1014         to->i1 = from->i1;
1015         to->i2 = from->i2;
1016         to->i3 = from->i3;
1017         to->i4 = from->i4;
1018         to->i5 = from->i5;
1019         to->i6 = from->i6;
1020         to->i7 = from->i7;
1021     }
1022     if (flags & CONTEXT_FLOATING_POINT)
1023     {
1024         /* FIXME */
1025     }
1026 #elif defined(__powerpc__)
1027     /* Has no CPU id */
1028     if (flags & CONTEXT_CONTROL)
1029     {
1030         to->Msr = from->Msr;
1031         to->Ctr = from->Ctr;
1032         to->Iar = from->Iar;
1033     }
1034     if (flags & CONTEXT_INTEGER)
1035     {
1036         to->Gpr0  = from->Gpr0;
1037         to->Gpr1  = from->Gpr1;
1038         to->Gpr2  = from->Gpr2;
1039         to->Gpr3  = from->Gpr3;
1040         to->Gpr4  = from->Gpr4;
1041         to->Gpr5  = from->Gpr5;
1042         to->Gpr6  = from->Gpr6;
1043         to->Gpr7  = from->Gpr7;
1044         to->Gpr8  = from->Gpr8;
1045         to->Gpr9  = from->Gpr9;
1046         to->Gpr10 = from->Gpr10;
1047         to->Gpr11 = from->Gpr11;
1048         to->Gpr12 = from->Gpr12;
1049         to->Gpr13 = from->Gpr13;
1050         to->Gpr14 = from->Gpr14;
1051         to->Gpr15 = from->Gpr15;
1052         to->Gpr16 = from->Gpr16;
1053         to->Gpr17 = from->Gpr17;
1054         to->Gpr18 = from->Gpr18;
1055         to->Gpr19 = from->Gpr19;
1056         to->Gpr20 = from->Gpr20;
1057         to->Gpr21 = from->Gpr21;
1058         to->Gpr22 = from->Gpr22;
1059         to->Gpr23 = from->Gpr23;
1060         to->Gpr24 = from->Gpr24;
1061         to->Gpr25 = from->Gpr25;
1062         to->Gpr26 = from->Gpr26;
1063         to->Gpr27 = from->Gpr27;
1064         to->Gpr28 = from->Gpr28;
1065         to->Gpr29 = from->Gpr29;
1066         to->Gpr30 = from->Gpr30;
1067         to->Gpr31 = from->Gpr31;
1068         to->Xer   = from->Xer;
1069         to->Cr    = from->Cr;
1070     }
1071     if (flags & CONTEXT_FLOATING_POINT)
1072     {
1073         to->Fpr0  = from->Fpr0;
1074         to->Fpr1  = from->Fpr1;
1075         to->Fpr2  = from->Fpr2;
1076         to->Fpr3  = from->Fpr3;
1077         to->Fpr4  = from->Fpr4;
1078         to->Fpr5  = from->Fpr5;
1079         to->Fpr6  = from->Fpr6;
1080         to->Fpr7  = from->Fpr7;
1081         to->Fpr8  = from->Fpr8;
1082         to->Fpr9  = from->Fpr9;
1083         to->Fpr10 = from->Fpr10;
1084         to->Fpr11 = from->Fpr11;
1085         to->Fpr12 = from->Fpr12;
1086         to->Fpr13 = from->Fpr13;
1087         to->Fpr14 = from->Fpr14;
1088         to->Fpr15 = from->Fpr15;
1089         to->Fpr16 = from->Fpr16;
1090         to->Fpr17 = from->Fpr17;
1091         to->Fpr18 = from->Fpr18;
1092         to->Fpr19 = from->Fpr19;
1093         to->Fpr20 = from->Fpr20;
1094         to->Fpr21 = from->Fpr21;
1095         to->Fpr22 = from->Fpr22;
1096         to->Fpr23 = from->Fpr23;
1097         to->Fpr24 = from->Fpr24;
1098         to->Fpr25 = from->Fpr25;
1099         to->Fpr26 = from->Fpr26;
1100         to->Fpr27 = from->Fpr27;
1101         to->Fpr28 = from->Fpr28;
1102         to->Fpr29 = from->Fpr29;
1103         to->Fpr30 = from->Fpr30;
1104         to->Fpr31 = from->Fpr31;
1105         to->Fpscr = from->Fpscr;
1106     }
1107 #else
1108 #error You must implement context copying for your CPU
1109 #endif
1110 }
1111
1112
1113 /***********************************************************************
1114  *              NtGetContextThread  (NTDLL.@)
1115  *              ZwGetContextThread  (NTDLL.@)
1116  */
1117 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
1118 {
1119     NTSTATUS ret;
1120     CONTEXT ctx;
1121     DWORD dummy, i;
1122     DWORD needed_flags = context->ContextFlags;
1123     BOOL self = (handle == GetCurrentThread());
1124
1125 #ifdef __i386__
1126     /* on i386 debug registers always require a server call */
1127     if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
1128 #endif
1129
1130     if (!self)
1131     {
1132         SERVER_START_REQ( get_thread_context )
1133         {
1134             req->handle  = wine_server_obj_handle( handle );
1135             req->flags   = context->ContextFlags;
1136             req->suspend = 0;
1137             wine_server_set_reply( req, &ctx, sizeof(ctx) );
1138             ret = wine_server_call( req );
1139             self = reply->self;
1140         }
1141         SERVER_END_REQ;
1142
1143         if (ret == STATUS_PENDING)
1144         {
1145             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
1146             {
1147                 for (i = 0; i < 100; i++)
1148                 {
1149                     SERVER_START_REQ( get_thread_context )
1150                     {
1151                         req->handle  = wine_server_obj_handle( handle );
1152                         req->flags   = context->ContextFlags;
1153                         req->suspend = 0;
1154                         wine_server_set_reply( req, &ctx, sizeof(ctx) );
1155                         ret = wine_server_call( req );
1156                     }
1157                     SERVER_END_REQ;
1158                     if (ret == STATUS_PENDING)
1159                     {
1160                         LARGE_INTEGER timeout;
1161                         timeout.QuadPart = -10000;
1162                         NtDelayExecution( FALSE, &timeout );
1163                     }
1164                     else break;
1165                 }
1166                 NtResumeThread( handle, &dummy );
1167             }
1168             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
1169         }
1170         if (ret) return ret;
1171         copy_context( context, &ctx, context->ContextFlags & ctx.ContextFlags );
1172         needed_flags &= ~ctx.ContextFlags;
1173     }
1174
1175     if (self)
1176     {
1177         if (needed_flags)
1178         {
1179             RtlCaptureContext( &ctx );
1180             copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
1181         }
1182 #ifdef __i386__
1183         /* update the cached version of the debug registers */
1184         if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
1185         {
1186             struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
1187             regs->dr0 = context->Dr0;
1188             regs->dr1 = context->Dr1;
1189             regs->dr2 = context->Dr2;
1190             regs->dr3 = context->Dr3;
1191             regs->dr6 = context->Dr6;
1192             regs->dr7 = context->Dr7;
1193         }
1194 #endif
1195     }
1196     return STATUS_SUCCESS;
1197 }
1198
1199
1200 /******************************************************************************
1201  *              NtQueryInformationThread  (NTDLL.@)
1202  *              ZwQueryInformationThread  (NTDLL.@)
1203  */
1204 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
1205                                           void *data, ULONG length, ULONG *ret_len )
1206 {
1207     NTSTATUS status;
1208
1209     switch(class)
1210     {
1211     case ThreadBasicInformation:
1212         {
1213             THREAD_BASIC_INFORMATION info;
1214             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1215
1216             SERVER_START_REQ( get_thread_info )
1217             {
1218                 req->handle = wine_server_obj_handle( handle );
1219                 req->tid_in = 0;
1220                 if (!(status = wine_server_call( req )))
1221                 {
1222                     info.ExitStatus             = reply->exit_code;
1223                     info.TebBaseAddress         = wine_server_get_ptr( reply->teb );
1224                     info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
1225                     info.ClientId.UniqueThread  = ULongToHandle(reply->tid);
1226                     info.AffinityMask           = reply->affinity & affinity_mask;
1227                     info.Priority               = reply->priority;
1228                     info.BasePriority           = reply->priority;  /* FIXME */
1229                 }
1230             }
1231             SERVER_END_REQ;
1232             if (status == STATUS_SUCCESS)
1233             {
1234                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
1235                 if (ret_len) *ret_len = min( length, sizeof(info) );
1236             }
1237         }
1238         return status;
1239     case ThreadAffinityMask:
1240         {
1241             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1242             ULONG_PTR affinity = 0;
1243
1244             SERVER_START_REQ( get_thread_info )
1245             {
1246                 req->handle = wine_server_obj_handle( handle );
1247                 req->tid_in = 0;
1248                 if (!(status = wine_server_call( req )))
1249                     affinity = reply->affinity & affinity_mask;
1250             }
1251             SERVER_END_REQ;
1252             if (status == STATUS_SUCCESS)
1253             {
1254                 if (data) memcpy( data, &affinity, min( length, sizeof(affinity) ));
1255                 if (ret_len) *ret_len = min( length, sizeof(affinity) );
1256             }
1257         }
1258         return status;
1259     case ThreadTimes:
1260         {
1261             KERNEL_USER_TIMES   kusrt;
1262             /* We need to do a server call to get the creation time or exit time */
1263             /* This works on any thread */
1264             SERVER_START_REQ( get_thread_info )
1265             {
1266                 req->handle = wine_server_obj_handle( handle );
1267                 req->tid_in = 0;
1268                 status = wine_server_call( req );
1269                 if (status == STATUS_SUCCESS)
1270                 {
1271                     kusrt.CreateTime.QuadPart = reply->creation_time;
1272                     kusrt.ExitTime.QuadPart = reply->exit_time;
1273                 }
1274             }
1275             SERVER_END_REQ;
1276             if (status == STATUS_SUCCESS)
1277             {
1278                 /* We call times(2) for kernel time or user time */
1279                 /* We can only (portably) do this for the current thread */
1280                 if (handle == GetCurrentThread())
1281                 {
1282                     struct tms time_buf;
1283                     long clocks_per_sec = sysconf(_SC_CLK_TCK);
1284
1285                     times(&time_buf);
1286                     kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
1287                     kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
1288                 }
1289                 else
1290                 {
1291                     static BOOL reported = FALSE;
1292
1293                     kusrt.KernelTime.QuadPart = 0;
1294                     kusrt.UserTime.QuadPart = 0;
1295                     if (reported)
1296                         TRACE("Cannot get kerneltime or usertime of other threads\n");
1297                     else
1298                     {
1299                         FIXME("Cannot get kerneltime or usertime of other threads\n");
1300                         reported = TRUE;
1301                     }
1302                 }
1303                 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
1304                 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
1305             }
1306         }
1307         return status;
1308     case ThreadDescriptorTableEntry:
1309         {
1310 #ifdef __i386__
1311             THREAD_DESCRIPTOR_INFORMATION*      tdi = data;
1312             if (length < sizeof(*tdi))
1313                 status = STATUS_INFO_LENGTH_MISMATCH;
1314             else if (!(tdi->Selector & 4))  /* GDT selector */
1315             {
1316                 unsigned sel = tdi->Selector & ~3;  /* ignore RPL */
1317                 status = STATUS_SUCCESS;
1318                 if (!sel)  /* null selector */
1319                     memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
1320                 else
1321                 {
1322                     tdi->Entry.BaseLow                   = 0;
1323                     tdi->Entry.HighWord.Bits.BaseMid     = 0;
1324                     tdi->Entry.HighWord.Bits.BaseHi      = 0;
1325                     tdi->Entry.LimitLow                  = 0xffff;
1326                     tdi->Entry.HighWord.Bits.LimitHi     = 0xf;
1327                     tdi->Entry.HighWord.Bits.Dpl         = 3;
1328                     tdi->Entry.HighWord.Bits.Sys         = 0;
1329                     tdi->Entry.HighWord.Bits.Pres        = 1;
1330                     tdi->Entry.HighWord.Bits.Granularity = 1;
1331                     tdi->Entry.HighWord.Bits.Default_Big = 1;
1332                     tdi->Entry.HighWord.Bits.Type        = 0x12;
1333                     /* it has to be one of the system GDT selectors */
1334                     if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
1335                     {
1336                         if (sel == (wine_get_cs() & ~3))
1337                             tdi->Entry.HighWord.Bits.Type |= 8;  /* code segment */
1338                         else status = STATUS_ACCESS_DENIED;
1339                     }
1340                 }
1341             }
1342             else
1343             {
1344                 SERVER_START_REQ( get_selector_entry )
1345                 {
1346                     req->handle = wine_server_obj_handle( handle );
1347                     req->entry = tdi->Selector >> 3;
1348                     status = wine_server_call( req );
1349                     if (!status)
1350                     {
1351                         if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1352                             status = STATUS_ACCESS_VIOLATION;
1353                         else
1354                         {
1355                             wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1356                             wine_ldt_set_limit( &tdi->Entry, reply->limit );
1357                             wine_ldt_set_flags( &tdi->Entry, reply->flags );
1358                         }
1359                     }
1360                 }
1361                 SERVER_END_REQ;
1362             }
1363             if (status == STATUS_SUCCESS && ret_len)
1364                 /* yes, that's a bit strange, but it's the way it is */
1365                 *ret_len = sizeof(LDT_ENTRY);
1366 #else
1367             status = STATUS_NOT_IMPLEMENTED;
1368 #endif
1369             return status;
1370         }
1371     case ThreadAmILastThread:
1372         {
1373             SERVER_START_REQ(get_thread_info)
1374             {
1375                 req->handle = wine_server_obj_handle( handle );
1376                 req->tid_in = 0;
1377                 status = wine_server_call( req );
1378                 if (status == STATUS_SUCCESS)
1379                 {
1380                     BOOLEAN last = reply->last;
1381                     if (data) memcpy( data, &last, min( length, sizeof(last) ));
1382                     if (ret_len) *ret_len = min( length, sizeof(last) );
1383                 }
1384             }
1385             SERVER_END_REQ;
1386             return status;
1387         }
1388     case ThreadPriority:
1389     case ThreadBasePriority:
1390     case ThreadImpersonationToken:
1391     case ThreadEnableAlignmentFaultFixup:
1392     case ThreadEventPair_Reusable:
1393     case ThreadQuerySetWin32StartAddress:
1394     case ThreadZeroTlsCell:
1395     case ThreadPerformanceCount:
1396     case ThreadIdealProcessor:
1397     case ThreadPriorityBoost:
1398     case ThreadSetTlsArrayAddress:
1399     case ThreadIsIoPending:
1400     default:
1401         FIXME( "info class %d not supported yet\n", class );
1402         return STATUS_NOT_IMPLEMENTED;
1403     }
1404 }
1405
1406
1407 /******************************************************************************
1408  *              NtSetInformationThread  (NTDLL.@)
1409  *              ZwSetInformationThread  (NTDLL.@)
1410  */
1411 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1412                                         LPCVOID data, ULONG length )
1413 {
1414     NTSTATUS status;
1415     switch(class)
1416     {
1417     case ThreadZeroTlsCell:
1418         if (handle == GetCurrentThread())
1419         {
1420             LIST_ENTRY *entry;
1421             DWORD index;
1422
1423             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1424             index = *(const DWORD *)data;
1425             if (index < TLS_MINIMUM_AVAILABLE)
1426             {
1427                 RtlAcquirePebLock();
1428                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1429                 {
1430                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1431                     teb->TlsSlots[index] = 0;
1432                 }
1433                 RtlReleasePebLock();
1434             }
1435             else
1436             {
1437                 index -= TLS_MINIMUM_AVAILABLE;
1438                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1439                     return STATUS_INVALID_PARAMETER;
1440                 RtlAcquirePebLock();
1441                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1442                 {
1443                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1444                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1445                 }
1446                 RtlReleasePebLock();
1447             }
1448             return STATUS_SUCCESS;
1449         }
1450         FIXME( "ZeroTlsCell not supported on other threads\n" );
1451         return STATUS_NOT_IMPLEMENTED;
1452
1453     case ThreadImpersonationToken:
1454         {
1455             const HANDLE *phToken = data;
1456             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1457             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1458             SERVER_START_REQ( set_thread_info )
1459             {
1460                 req->handle   = wine_server_obj_handle( handle );
1461                 req->token    = wine_server_obj_handle( *phToken );
1462                 req->mask     = SET_THREAD_INFO_TOKEN;
1463                 status = wine_server_call( req );
1464             }
1465             SERVER_END_REQ;
1466         }
1467         return status;
1468     case ThreadBasePriority:
1469         {
1470             const DWORD *pprio = data;
1471             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1472             SERVER_START_REQ( set_thread_info )
1473             {
1474                 req->handle   = wine_server_obj_handle( handle );
1475                 req->priority = *pprio;
1476                 req->mask     = SET_THREAD_INFO_PRIORITY;
1477                 status = wine_server_call( req );
1478             }
1479             SERVER_END_REQ;
1480         }
1481         return status;
1482     case ThreadAffinityMask:
1483         {
1484             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1485             const ULONG_PTR *paff = data;
1486             if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER;
1487             if (*paff & ~affinity_mask) return STATUS_INVALID_PARAMETER;
1488             SERVER_START_REQ( set_thread_info )
1489             {
1490                 req->handle   = wine_server_obj_handle( handle );
1491                 req->affinity = *paff;
1492                 req->mask     = SET_THREAD_INFO_AFFINITY;
1493                 status = wine_server_call( req );
1494             }
1495             SERVER_END_REQ;
1496         }
1497         return status;
1498     case ThreadBasicInformation:
1499     case ThreadTimes:
1500     case ThreadPriority:
1501     case ThreadDescriptorTableEntry:
1502     case ThreadEnableAlignmentFaultFixup:
1503     case ThreadEventPair_Reusable:
1504     case ThreadQuerySetWin32StartAddress:
1505     case ThreadPerformanceCount:
1506     case ThreadAmILastThread:
1507     case ThreadIdealProcessor:
1508     case ThreadPriorityBoost:
1509     case ThreadSetTlsArrayAddress:
1510     case ThreadIsIoPending:
1511     default:
1512         FIXME( "info class %d not supported yet\n", class );
1513         return STATUS_NOT_IMPLEMENTED;
1514     }
1515 }