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     struct wine_pthread_thread_info pthread_info;
  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
  71 static struct wine_pthread_functions pthread_functions;
  72
  73
  74 static RTL_CRITICAL_SECTION ldt_section;
  75 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
  76 {
  77     0, 0, &ldt_section,
  78     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  79       0, 0, { (DWORD_PTR)(__FILE__ ": ldt_section") }
  80 };
  81 static RTL_CRITICAL_SECTION ldt_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  82 static sigset_t ldt_sigset;
  83
  84 /***********************************************************************
  85  *           locking for LDT routines
  86  */
  87 static void ldt_lock(void)
  88 {
  89     sigset_t sigset;
  90
  91     pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
  92     RtlEnterCriticalSection( &ldt_section );
  93     if (ldt_section.RecursionCount == 1) ldt_sigset = sigset;
  94 }
  95
  96 static void ldt_unlock(void)
  97 {
  98     if (ldt_section.RecursionCount == 1)
  99     {
 100         sigset_t sigset = ldt_sigset;
 101         RtlLeaveCriticalSection( &ldt_section );
 102         pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 103     }
 104     else RtlLeaveCriticalSection( &ldt_section );
 105 }
 106
 107
 108 /***********************************************************************
 109  *           init_teb
 110  */
 111 static inline NTSTATUS init_teb( TEB *teb )
 112 {
 113     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 114
 115     teb->Tib.ExceptionList = (void *)~0UL;
 116     teb->Tib.StackBase     = (void *)~0UL;
 117     teb->Tib.Self          = &teb->Tib;
 118     teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
 119     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
 120
 121     if (!(thread_data->fs = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
 122     thread_data->request_fd = -1;
 123     thread_data->reply_fd   = -1;
 124     thread_data->wait_fd[0] = -1;
 125     thread_data->wait_fd[1] = -1;
 126
 127     return STATUS_SUCCESS;
 128 }
 129
 130
 131 /***********************************************************************
 132  *           fix_unicode_string
 133  *
 134  * Make sure the unicode string doesn't point beyond the end pointer
 135  */
 136 static inline void fix_unicode_string( UNICODE_STRING *str, const char *end_ptr )
 137 {
 138     if ((char *)str->Buffer >= end_ptr)
 139     {
 140         str->Length = str->MaximumLength = 0;
 141         str->Buffer = NULL;
 142         return;
 143     }
 144     if ((char *)str->Buffer + str->MaximumLength > end_ptr)
 145     {
 146         str->MaximumLength = (end_ptr - (char *)str->Buffer) & ~(sizeof(WCHAR) - 1);
 147     }
 148     if (str->Length >= str->MaximumLength)
 149     {
 150         if (str->MaximumLength >= sizeof(WCHAR))
 151             str->Length = str->MaximumLength - sizeof(WCHAR);
 152         else
 153             str->Length = str->MaximumLength = 0;
 154     }
 155 }
 156
 157
 158 /***********************************************************************
 159  *           init_user_process_params
 160  *
 161  * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
 162  */
 163 static NTSTATUS init_user_process_params( SIZE_T info_size, HANDLE *exe_file )
 164 {
 165     void *ptr;
 166     SIZE_T env_size;
 167     NTSTATUS status;
 168     RTL_USER_PROCESS_PARAMETERS *params = NULL;
 169
 170     status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &info_size,
 171                                       MEM_COMMIT, PAGE_READWRITE );
 172     if (status != STATUS_SUCCESS) return status;
 173
 174     params->AllocationSize = info_size;
 175     NtCurrentTeb()->Peb->ProcessParameters = params;
 176
 177     SERVER_START_REQ( get_startup_info )
 178     {
 179         wine_server_set_reply( req, params, info_size );
 180         if (!(status = wine_server_call( req )))
 181         {
 182             info_size = wine_server_reply_size( reply );
 183             *exe_file = wine_server_ptr_handle( reply->exe_file );
 184             params->hStdInput  = wine_server_ptr_handle( reply->hstdin );
 185             params->hStdOutput = wine_server_ptr_handle( reply->hstdout );
 186             params->hStdError  = wine_server_ptr_handle( reply->hstderr );
 187         }
 188     }
 189     SERVER_END_REQ;
 190     if (status != STATUS_SUCCESS) return status;
 191
 192     if (params->Size > info_size) params->Size = info_size;
 193
 194     /* make sure the strings are valid */
 195     fix_unicode_string( &params->CurrentDirectory.DosPath, (char *)info_size );
 196     fix_unicode_string( &params->DllPath, (char *)info_size );
 197     fix_unicode_string( &params->ImagePathName, (char *)info_size );
 198     fix_unicode_string( &params->CommandLine, (char *)info_size );
 199     fix_unicode_string( &params->WindowTitle, (char *)info_size );
 200     fix_unicode_string( &params->Desktop, (char *)info_size );
 201     fix_unicode_string( &params->ShellInfo, (char *)info_size );
 202     fix_unicode_string( &params->RuntimeInfo, (char *)info_size );
 203
 204     /* environment needs to be a separate memory block */
 205     env_size = info_size - params->Size;
 206     if (!env_size) env_size = 1;
 207     ptr = NULL;
 208     status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &env_size,
 209                                       MEM_COMMIT, PAGE_READWRITE );
 210     if (status != STATUS_SUCCESS) return status;
 211     memcpy( ptr, (char *)params + params->Size, info_size - params->Size );
 212     params->Environment = ptr;
 213
 214     RtlNormalizeProcessParams( params );
 215     return status;
 216 }
 217
 218
 219 /***********************************************************************
 220  *           thread_init
 221  *
 222  * Setup the initial thread.
 223  *
 224  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 225  */
 226 HANDLE thread_init(void)
 227 {
 228     PEB *peb;
 229     TEB *teb;
 230     void *addr;
 231     SIZE_T size, info_size;
 232     HANDLE exe_file = 0;
 233     LARGE_INTEGER now;
 234     struct ntdll_thread_data *thread_data;
 235     struct wine_pthread_thread_info thread_info;
 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     thread_info.teb_size = sigstack_total_size;
 281
 282     addr = NULL;
 283     size = sigstack_total_size;
 284     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 285                              &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 286     teb = addr;
 287     teb->Peb = peb;
 288     thread_info.teb_size = size;
 289     init_teb( teb );
 290     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 291     thread_data->debug_info = &debug_info;
 292     InsertHeadList( &tls_links, &teb->TlsLinks );
 293
 294     thread_info.stack_base = NULL;
 295     thread_info.stack_size = 0;
 296     thread_info.teb_base   = teb;
 297     thread_info.teb_sel    = thread_data->fs;
 298     wine_pthread_get_functions( &pthread_functions, sizeof(pthread_functions) );
 299     signal_init_thread( teb );
 300     pthread_functions.init_thread( &thread_info );
 301     virtual_init_threading();
 302
 303     debug_info.str_pos = debug_info.strings;
 304     debug_info.out_pos = debug_info.output;
 305     debug_init();
 306
 307     /* setup the server connection */
 308     server_init_process();
 309     info_size = server_init_thread( NULL );
 310
 311     /* create the process heap */
 312     if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
 313     {
 314         MESSAGE( "wine: failed to create the process heap\n" );
 315         exit(1);
 316     }
 317
 318     /* allocate user parameters */
 319     if (info_size)
 320     {
 321         init_user_process_params( info_size, &exe_file );
 322     }
 323     else
 324     {
 325         /* This is wine specific: we have no parent (we're started from unix)
 326          * so, create a simple console with bare handles to unix stdio
 327          */
 328         wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE,  OBJ_INHERIT, &params.hStdInput );
 329         wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
 330         wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
 331     }
 332
 333     /* initialize LDT locking */
 334     wine_ldt_init_locking( ldt_lock, ldt_unlock );
 335
 336     /* initialize time values in user_shared_data */
 337     NtQuerySystemTime( &now );
 338     user_shared_data->SystemTime.LowPart = now.u.LowPart;
 339     user_shared_data->SystemTime.High1Time = user_shared_data->SystemTime.High2Time = now.u.HighPart;
 340     user_shared_data->u.TickCountQuad = (now.QuadPart - server_start_time) / 10000;
 341     user_shared_data->u.TickCount.High2Time = user_shared_data->u.TickCount.High1Time;
 342     user_shared_data->TickCountLowDeprecated = user_shared_data->u.TickCount.LowPart;
 343     user_shared_data->TickCountMultiplier = 1 << 24;
 344
 345     pthread_init();
 346     return exe_file;
 347 }
 348
 349
 350 /***********************************************************************
 351  *           abort_thread
 352  */
 353 void abort_thread( int status )
 354 {
 355     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 356     close( ntdll_get_thread_data()->wait_fd[0] );
 357     close( ntdll_get_thread_data()->wait_fd[1] );
 358     close( ntdll_get_thread_data()->reply_fd );
 359     close( ntdll_get_thread_data()->request_fd );
 360     pthread_functions.abort_thread( status );
 361 }
 362
 363
 364 /***********************************************************************
 365  *           exit_thread
 366  */
 367 static void DECLSPEC_NORETURN exit_thread( int status )
 368 {
 369     struct wine_pthread_thread_info info;
 370     int fds[4];
 371
 372     RtlAcquirePebLock();
 373     RemoveEntryList( &NtCurrentTeb()->TlsLinks );
 374     RtlReleasePebLock();
 375     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots );
 376     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
 377
 378     info.stack_base  = NtCurrentTeb()->DeallocationStack;
 379     info.teb_base    = NtCurrentTeb();
 380     info.teb_sel     = wine_get_fs();
 381     info.exit_status = status;
 382
 383     fds[0] = ntdll_get_thread_data()->wait_fd[0];
 384     fds[1] = ntdll_get_thread_data()->wait_fd[1];
 385     fds[2] = ntdll_get_thread_data()->reply_fd;
 386     fds[3] = ntdll_get_thread_data()->request_fd;
 387     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 388
 389     info.stack_size = virtual_free_system_view( &info.stack_base );
 390     info.teb_size = virtual_free_system_view( &info.teb_base );
 391
 392     close( fds[0] );
 393     close( fds[1] );
 394     close( fds[2] );
 395     close( fds[3] );
 396     pthread_functions.exit_thread( &info );
 397 }
 398
 399
 400 #ifdef __i386__
 401 /* wrapper for apps that don't declare the thread function correctly */
 402 extern DWORD call_thread_entry_point( PRTL_THREAD_START_ROUTINE entry, void *arg );
 403 __ASM_GLOBAL_FUNC(call_thread_entry_point,
 404                   "pushl %ebp\n\t"
 405                   "movl %esp,%ebp\n\t"
 406                   "subl $4,%esp\n\t"
 407                   "pushl 12(%ebp)\n\t"
 408                   "movl 8(%ebp),%eax\n\t"
 409                   "call *%eax\n\t"
 410                   "leave\n\t"
 411                   "ret" )
 412 #else
 413 static inline DWORD call_thread_entry_point( PRTL_THREAD_START_ROUTINE entry, void *arg )
 414 {
 415     LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)entry;
 416     return func( arg );
 417 }
 418 #endif
 419
 420 /***********************************************************************
 421  *           call_thread_func
 422  *
 423  * Hack to make things compatible with the thread procedures used by kernel32.CreateThread.
 424  */
 425 static void DECLSPEC_NORETURN call_thread_func( PRTL_THREAD_START_ROUTINE rtl_func, void *arg )
 426 {
 427     DWORD exit_code;
 428     BOOL last;
 429
 430     MODULE_DllThreadAttach( NULL );
 431
 432     if (TRACE_ON(relay))
 433         DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), rtl_func, arg );
 434
 435     exit_code = call_thread_entry_point( rtl_func, arg );
 436
 437     /* send the exit code to the server */
 438     SERVER_START_REQ( terminate_thread )
 439     {
 440         req->handle    = wine_server_obj_handle( GetCurrentThread() );
 441         req->exit_code = exit_code;
 442         wine_server_call( req );
 443         last = reply->last;
 444     }
 445     SERVER_END_REQ;
 446
 447     if (last)
 448     {
 449         LdrShutdownProcess();
 450         exit( exit_code );
 451     }
 452     else
 453     {
 454         LdrShutdownThread();
 455         exit_thread( exit_code );
 456     }
 457 }
 458
 459
 460 /***********************************************************************
 461  *           start_thread
 462  *
 463  * Startup routine for a newly created thread.
 464  */
 465 static void start_thread( struct wine_pthread_thread_info *info )
 466 {
 467     TEB *teb = info->teb_base;
 468     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 469     struct startup_info *startup_info = (struct startup_info *)info;
 470     PRTL_THREAD_START_ROUTINE func = startup_info->entry_point;
 471     void *arg = startup_info->entry_arg;
 472     struct debug_info debug_info;
 473
 474     debug_info.str_pos = debug_info.strings;
 475     debug_info.out_pos = debug_info.output;
 476     thread_data->debug_info = &debug_info;
 477
 478     signal_init_thread( teb );
 479     server_init_thread( func );
 480     pthread_functions.init_thread( info );
 481     virtual_alloc_thread_stack( info->stack_base, info->stack_size );
 482     pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
 483
 484     RtlAcquirePebLock();
 485     InsertHeadList( &tls_links, &teb->TlsLinks );
 486     RtlReleasePebLock();
 487
 488     /* NOTE: Windows does not have an exception handler around the call to
 489      * the thread attach. We do for ease of debugging */
 490     if (unhandled_exception_filter)
 491     {
 492         __TRY
 493         {
 494             call_thread_func( func, arg );
 495         }
 496         __EXCEPT(unhandled_exception_filter)
 497         {
 498             NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
 499         }
 500         __ENDTRY
 501     }
 502     else
 503         call_thread_func( func, arg );
 504 }
 505
 506
 507 /***********************************************************************
 508  *              RtlCreateUserThread   (NTDLL.@)
 509  */
 510 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 511                                      BOOLEAN suspended, PVOID stack_addr,
 512                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 513                                      PRTL_THREAD_START_ROUTINE start, void *param,
 514                                      HANDLE *handle_ptr, CLIENT_ID *id )
 515 {
 516     sigset_t sigset;
 517     struct ntdll_thread_data *thread_data = NULL;
 518     struct ntdll_thread_regs *thread_regs;
 519     struct startup_info *info = NULL;
 520     void *addr = NULL;
 521     HANDLE handle = 0;
 522     TEB *teb;
 523     DWORD tid = 0;
 524     int request_pipe[2];
 525     NTSTATUS status;
 526     SIZE_T size, page_size = getpagesize();
 527
 528     if (process != NtCurrentProcess())
 529     {
 530         apc_call_t call;
 531         apc_result_t result;
 532
 533         memset( &call, 0, sizeof(call) );
 534
 535         call.create_thread.type    = APC_CREATE_THREAD;
 536         call.create_thread.func    = wine_server_client_ptr( start );
 537         call.create_thread.arg     = wine_server_client_ptr( param );
 538         call.create_thread.reserve = stack_reserve;
 539         call.create_thread.commit  = stack_commit;
 540         call.create_thread.suspend = suspended;
 541         status = NTDLL_queue_process_apc( process, &call, &result );
 542         if (status != STATUS_SUCCESS) return status;
 543
 544         if (result.create_thread.status == STATUS_SUCCESS)
 545         {
 546             if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid);
 547             if (handle_ptr) *handle_ptr = wine_server_ptr_handle( result.create_thread.handle );
 548             else NtClose( wine_server_ptr_handle( result.create_thread.handle ));
 549         }
 550         return result.create_thread.status;
 551     }
 552
 553     if (pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 554     fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
 555     wine_server_send_fd( request_pipe[0] );
 556
 557     SERVER_START_REQ( new_thread )
 558     {
 559         req->access     = THREAD_ALL_ACCESS;
 560         req->attributes = 0;  /* FIXME */
 561         req->suspend    = suspended;
 562         req->request_fd = request_pipe[0];
 563         if (!(status = wine_server_call( req )))
 564         {
 565             handle = wine_server_ptr_handle( reply->handle );
 566             tid = reply->tid;
 567         }
 568         close( request_pipe[0] );
 569     }
 570     SERVER_END_REQ;
 571
 572     if (status)
 573     {
 574         close( request_pipe[1] );
 575         return status;
 576     }
 577
 578     pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
 579
 580     addr = NULL;
 581     size = sigstack_total_size;
 582     if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
 583                                            &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
 584         goto error;
 585     teb = addr;
 586     teb->Peb = NtCurrentTeb()->Peb;
 587     info = (struct startup_info *)(teb + 1);
 588     info->pthread_info.teb_size = size;
 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     info->pthread_info.teb_base = teb;
 599     info->pthread_info.teb_sel  = thread_data->fs;
 600
 601     /* inherit debug registers from parent thread */
 602     thread_regs->dr0 = ntdll_get_thread_regs()->dr0;
 603     thread_regs->dr1 = ntdll_get_thread_regs()->dr1;
 604     thread_regs->dr2 = ntdll_get_thread_regs()->dr2;
 605     thread_regs->dr3 = ntdll_get_thread_regs()->dr3;
 606     thread_regs->dr6 = ntdll_get_thread_regs()->dr6;
 607     thread_regs->dr7 = ntdll_get_thread_regs()->dr7;
 608
 609     if (!stack_reserve || !stack_commit)
 610     {
 611         IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress );
 612         if (!stack_reserve) stack_reserve = nt->OptionalHeader.SizeOfStackReserve;
 613         if (!stack_commit) stack_commit = nt->OptionalHeader.SizeOfStackCommit;
 614     }
 615     if (stack_reserve < stack_commit) stack_reserve = stack_commit;
 616     stack_reserve += page_size;  /* for the guard page */
 617     stack_reserve = (stack_reserve + 0xffff) & ~0xffff;  /* round to 64K boundary */
 618     if (stack_reserve < 1024 * 1024) stack_reserve = 1024 * 1024;  /* Xlib needs a large stack */
 619
 620     info->pthread_info.stack_base = NULL;
 621     info->pthread_info.stack_size = stack_reserve;
 622     info->pthread_info.entry      = start_thread;
 623     info->entry_point             = start;
 624     info->entry_arg               = param;
 625
 626     if (pthread_functions.create_thread( &info->pthread_info ) == -1)
 627     {
 628         status = STATUS_NO_MEMORY;
 629         goto error;
 630     }
 631     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 632
 633     if (id) id->UniqueThread = ULongToHandle(tid);
 634     if (handle_ptr) *handle_ptr = handle;
 635     else NtClose( handle );
 636
 637     return STATUS_SUCCESS;
 638
 639 error:
 640     if (thread_data) wine_ldt_free_fs( thread_data->fs );
 641     if (addr)
 642     {
 643         SIZE_T size = 0;
 644         NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
 645     }
 646     if (handle) NtClose( handle );
 647     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 648     close( request_pipe[1] );
 649     return status;
 650 }
 651
 652
 653 /***********************************************************************
 654  *           RtlExitUserThread  (NTDLL.@)
 655  */
 656 void WINAPI RtlExitUserThread( ULONG status )
 657 {
 658     BOOL last;
 659
 660     SERVER_START_REQ( terminate_thread )
 661     {
 662         /* send the exit code to the server */
 663         req->handle    = wine_server_obj_handle( GetCurrentThread() );
 664         req->exit_code = status;
 665         wine_server_call( req );
 666         last = reply->last;
 667     }
 668     SERVER_END_REQ;
 669
 670     if (last)
 671     {
 672         LdrShutdownProcess();
 673         exit( status );
 674     }
 675     else
 676     {
 677         LdrShutdownThread();
 678         exit_thread( status );
 679     }
 680 }
 681
 682
 683 /***********************************************************************
 684  *              NtOpenThread   (NTDLL.@)
 685  *              ZwOpenThread   (NTDLL.@)
 686  */
 687 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 688                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 689 {
 690     NTSTATUS ret;
 691
 692     SERVER_START_REQ( open_thread )
 693     {
 694         req->tid        = HandleToULong(id->UniqueThread);
 695         req->access     = access;
 696         req->attributes = attr ? attr->Attributes : 0;
 697         ret = wine_server_call( req );
 698         *handle = wine_server_ptr_handle( reply->handle );
 699     }
 700     SERVER_END_REQ;
 701     return ret;
 702 }
 703
 704
 705 /******************************************************************************
 706  *              NtSuspendThread   (NTDLL.@)
 707  *              ZwSuspendThread   (NTDLL.@)
 708  */
 709 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 710 {
 711     NTSTATUS ret;
 712
 713     SERVER_START_REQ( suspend_thread )
 714     {
 715         req->handle = wine_server_obj_handle( handle );
 716         if (!(ret = wine_server_call( req ))) *count = reply->count;
 717     }
 718     SERVER_END_REQ;
 719     return ret;
 720 }
 721
 722
 723 /******************************************************************************
 724  *              NtResumeThread   (NTDLL.@)
 725  *              ZwResumeThread   (NTDLL.@)
 726  */
 727 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 728 {
 729     NTSTATUS ret;
 730
 731     SERVER_START_REQ( resume_thread )
 732     {
 733         req->handle = wine_server_obj_handle( handle );
 734         if (!(ret = wine_server_call( req ))) *count = reply->count;
 735     }
 736     SERVER_END_REQ;
 737     return ret;
 738 }
 739
 740
 741 /******************************************************************************
 742  *              NtAlertResumeThread   (NTDLL.@)
 743  *              ZwAlertResumeThread   (NTDLL.@)
 744  */
 745 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
 746 {
 747     FIXME( "stub: should alert thread %p\n", handle );
 748     return NtResumeThread( handle, count );
 749 }
 750
 751
 752 /******************************************************************************
 753  *              NtAlertThread   (NTDLL.@)
 754  *              ZwAlertThread   (NTDLL.@)
 755  */
 756 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
 757 {
 758     FIXME( "stub: %p\n", handle );
 759     return STATUS_NOT_IMPLEMENTED;
 760 }
 761
 762
 763 /******************************************************************************
 764  *              NtTerminateThread  (NTDLL.@)
 765  *              ZwTerminateThread  (NTDLL.@)
 766  */
 767 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 768 {
 769     NTSTATUS ret;
 770     BOOL self, last;
 771
 772     SERVER_START_REQ( terminate_thread )
 773     {
 774         req->handle    = wine_server_obj_handle( handle );
 775         req->exit_code = exit_code;
 776         ret = wine_server_call( req );
 777         self = !ret && reply->self;
 778         last = reply->last;
 779     }
 780     SERVER_END_REQ;
 781
 782     if (self)
 783     {
 784         if (last) _exit( exit_code );
 785         else abort_thread( exit_code );
 786     }
 787     return ret;
 788 }
 789
 790
 791 /******************************************************************************
 792  *              NtQueueApcThread  (NTDLL.@)
 793  */
 794 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 795                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 796 {
 797     NTSTATUS ret;
 798     SERVER_START_REQ( queue_apc )
 799     {
 800         req->handle = wine_server_obj_handle( handle );
 801         if (func)
 802         {
 803             req->call.type         = APC_USER;
 804             req->call.user.func    = wine_server_client_ptr( func );
 805             req->call.user.args[0] = arg1;
 806             req->call.user.args[1] = arg2;
 807             req->call.user.args[2] = arg3;
 808         }
 809         else req->call.type = APC_NONE;  /* wake up only */
 810         ret = wine_server_call( req );
 811     }
 812     SERVER_END_REQ;
 813     return ret;
 814 }
 815
 816
 817 /***********************************************************************
 818  *              NtSetContextThread  (NTDLL.@)
 819  *              ZwSetContextThread  (NTDLL.@)
 820  */
 821 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 822 {
 823     NTSTATUS ret;
 824     DWORD dummy, i;
 825     BOOL self = FALSE;
 826
 827 #ifdef __i386__
 828     /* on i386 debug registers always require a server call */
 829     self = (handle == GetCurrentThread());
 830     if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
 831     {
 832         struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 833         self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 &&
 834                 regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 &&
 835                 regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7);
 836     }
 837 #endif
 838
 839     if (!self)
 840     {
 841         SERVER_START_REQ( set_thread_context )
 842         {
 843             req->handle  = wine_server_obj_handle( handle );
 844             req->flags   = context->ContextFlags;
 845             req->suspend = 0;
 846             wine_server_add_data( req, context, sizeof(*context) );
 847             ret = wine_server_call( req );
 848             self = reply->self;
 849         }
 850         SERVER_END_REQ;
 851
 852         if (ret == STATUS_PENDING)
 853         {
 854             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 855             {
 856                 for (i = 0; i < 100; i++)
 857                 {
 858                     SERVER_START_REQ( set_thread_context )
 859                     {
 860                         req->handle  = wine_server_obj_handle( handle );
 861                         req->flags   = context->ContextFlags;
 862                         req->suspend = 0;
 863                         wine_server_add_data( req, context, sizeof(*context) );
 864                         ret = wine_server_call( req );
 865                     }
 866                     SERVER_END_REQ;
 867                     if (ret == STATUS_PENDING)
 868                     {
 869                         LARGE_INTEGER timeout;
 870                         timeout.QuadPart = -10000;
 871                         NtDelayExecution( FALSE, &timeout );
 872                     }
 873                     else break;
 874                 }
 875                 NtResumeThread( handle, &dummy );
 876             }
 877             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 878         }
 879
 880         if (ret) return ret;
 881     }
 882
 883     if (self) set_cpu_context( context );
 884     return STATUS_SUCCESS;
 885 }
 886
 887
 888 /* copy a context structure according to the flags */
 889 static inline void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
 890 {
 891 #ifdef __i386__
 892     flags &= ~CONTEXT_i386;  /* get rid of CPU id */
 893     if (flags & CONTEXT_INTEGER)
 894     {
 895         to->Eax = from->Eax;
 896         to->Ebx = from->Ebx;
 897         to->Ecx = from->Ecx;
 898         to->Edx = from->Edx;
 899         to->Esi = from->Esi;
 900         to->Edi = from->Edi;
 901     }
 902     if (flags & CONTEXT_CONTROL)
 903     {
 904         to->Ebp    = from->Ebp;
 905         to->Esp    = from->Esp;
 906         to->Eip    = from->Eip;
 907         to->SegCs  = from->SegCs;
 908         to->SegSs  = from->SegSs;
 909         to->EFlags = from->EFlags;
 910     }
 911     if (flags & CONTEXT_SEGMENTS)
 912     {
 913         to->SegDs = from->SegDs;
 914         to->SegEs = from->SegEs;
 915         to->SegFs = from->SegFs;
 916         to->SegGs = from->SegGs;
 917     }
 918     if (flags & CONTEXT_DEBUG_REGISTERS)
 919     {
 920         to->Dr0 = from->Dr0;
 921         to->Dr1 = from->Dr1;
 922         to->Dr2 = from->Dr2;
 923         to->Dr3 = from->Dr3;
 924         to->Dr6 = from->Dr6;
 925         to->Dr7 = from->Dr7;
 926     }
 927     if (flags & CONTEXT_FLOATING_POINT)
 928     {
 929         to->FloatSave = from->FloatSave;
 930     }
 931     if (flags & CONTEXT_EXTENDED_REGISTERS)
 932     {
 933         memcpy( to->ExtendedRegisters, from->ExtendedRegisters, sizeof(to->ExtendedRegisters) );
 934     }
 935 #elif defined(__x86_64__)
 936     flags &= ~CONTEXT_AMD64;  /* get rid of CPU id */
 937     if (flags & CONTEXT_CONTROL)
 938     {
 939         to->Rbp    = from->Rbp;
 940         to->Rip    = from->Rip;
 941         to->Rsp    = from->Rsp;
 942         to->SegCs  = from->SegCs;
 943         to->SegSs  = from->SegSs;
 944         to->EFlags = from->EFlags;
 945         to->MxCsr  = from->MxCsr;
 946     }
 947     if (flags & CONTEXT_INTEGER)
 948     {
 949         to->Rax = from->Rax;
 950         to->Rcx = from->Rcx;
 951         to->Rdx = from->Rdx;
 952         to->Rbx = from->Rbx;
 953         to->Rsi = from->Rsi;
 954         to->Rdi = from->Rdi;
 955         to->R8  = from->R8;
 956         to->R9  = from->R9;
 957         to->R10 = from->R10;
 958         to->R11 = from->R11;
 959         to->R12 = from->R12;
 960         to->R13 = from->R13;
 961         to->R14 = from->R14;
 962         to->R15 = from->R15;
 963     }
 964     if (flags & CONTEXT_SEGMENTS)
 965     {
 966         to->SegDs = from->SegDs;
 967         to->SegEs = from->SegEs;
 968         to->SegFs = from->SegFs;
 969         to->SegGs = from->SegGs;
 970     }
 971     if (flags & CONTEXT_FLOATING_POINT)
 972     {
 973         to->u.FltSave = from->u.FltSave;
 974     }
 975     if (flags & CONTEXT_DEBUG_REGISTERS)
 976     {
 977         to->Dr0 = from->Dr0;
 978         to->Dr1 = from->Dr1;
 979         to->Dr2 = from->Dr2;
 980         to->Dr3 = from->Dr3;
 981         to->Dr6 = from->Dr6;
 982         to->Dr7 = from->Dr7;
 983     }
 984 #elif defined(__sparc__)
 985     flags &= ~CONTEXT_SPARC;  /* get rid of CPU id */
 986     if (flags & CONTEXT_CONTROL)
 987     {
 988         to->psr = from->psr;
 989         to->pc  = from->pc;
 990         to->npc = from->npc;
 991         to->y   = from->y;
 992         to->wim = from->wim;
 993         to->tbr = from->tbr;
 994     }
 995     if (flags & CONTEXT_INTEGER)
 996     {
 997         to->g0 = from->g0;
 998         to->g1 = from->g1;
 999         to->g2 = from->g2;
1000         to->g3 = from->g3;
1001         to->g4 = from->g4;
1002         to->g5 = from->g5;
1003         to->g6 = from->g6;
1004         to->g7 = from->g7;
1005         to->o0 = from->o0;
1006         to->o1 = from->o1;
1007         to->o2 = from->o2;
1008         to->o3 = from->o3;
1009         to->o4 = from->o4;
1010         to->o5 = from->o5;
1011         to->o6 = from->o6;
1012         to->o7 = from->o7;
1013         to->l0 = from->l0;
1014         to->l1 = from->l1;
1015         to->l2 = from->l2;
1016         to->l3 = from->l3;
1017         to->l4 = from->l4;
1018         to->l5 = from->l5;
1019         to->l6 = from->l6;
1020         to->l7 = from->l7;
1021         to->i0 = from->i0;
1022         to->i1 = from->i1;
1023         to->i2 = from->i2;
1024         to->i3 = from->i3;
1025         to->i4 = from->i4;
1026         to->i5 = from->i5;
1027         to->i6 = from->i6;
1028         to->i7 = from->i7;
1029     }
1030     if (flags & CONTEXT_FLOATING_POINT)
1031     {
1032         /* FIXME */
1033     }
1034 #elif defined(__powerpc__)
1035     /* Has no CPU id */
1036     if (flags & CONTEXT_CONTROL)
1037     {
1038         to->Msr = from->Msr;
1039         to->Ctr = from->Ctr;
1040         to->Iar = from->Iar;
1041     }
1042     if (flags & CONTEXT_INTEGER)
1043     {
1044         to->Gpr0  = from->Gpr0;
1045         to->Gpr1  = from->Gpr1;
1046         to->Gpr2  = from->Gpr2;
1047         to->Gpr3  = from->Gpr3;
1048         to->Gpr4  = from->Gpr4;
1049         to->Gpr5  = from->Gpr5;
1050         to->Gpr6  = from->Gpr6;
1051         to->Gpr7  = from->Gpr7;
1052         to->Gpr8  = from->Gpr8;
1053         to->Gpr9  = from->Gpr9;
1054         to->Gpr10 = from->Gpr10;
1055         to->Gpr11 = from->Gpr11;
1056         to->Gpr12 = from->Gpr12;
1057         to->Gpr13 = from->Gpr13;
1058         to->Gpr14 = from->Gpr14;
1059         to->Gpr15 = from->Gpr15;
1060         to->Gpr16 = from->Gpr16;
1061         to->Gpr17 = from->Gpr17;
1062         to->Gpr18 = from->Gpr18;
1063         to->Gpr19 = from->Gpr19;
1064         to->Gpr20 = from->Gpr20;
1065         to->Gpr21 = from->Gpr21;
1066         to->Gpr22 = from->Gpr22;
1067         to->Gpr23 = from->Gpr23;
1068         to->Gpr24 = from->Gpr24;
1069         to->Gpr25 = from->Gpr25;
1070         to->Gpr26 = from->Gpr26;
1071         to->Gpr27 = from->Gpr27;
1072         to->Gpr28 = from->Gpr28;
1073         to->Gpr29 = from->Gpr29;
1074         to->Gpr30 = from->Gpr30;
1075         to->Gpr31 = from->Gpr31;
1076         to->Xer   = from->Xer;
1077         to->Cr    = from->Cr;
1078     }
1079     if (flags & CONTEXT_FLOATING_POINT)
1080     {
1081         to->Fpr0  = from->Fpr0;
1082         to->Fpr1  = from->Fpr1;
1083         to->Fpr2  = from->Fpr2;
1084         to->Fpr3  = from->Fpr3;
1085         to->Fpr4  = from->Fpr4;
1086         to->Fpr5  = from->Fpr5;
1087         to->Fpr6  = from->Fpr6;
1088         to->Fpr7  = from->Fpr7;
1089         to->Fpr8  = from->Fpr8;
1090         to->Fpr9  = from->Fpr9;
1091         to->Fpr10 = from->Fpr10;
1092         to->Fpr11 = from->Fpr11;
1093         to->Fpr12 = from->Fpr12;
1094         to->Fpr13 = from->Fpr13;
1095         to->Fpr14 = from->Fpr14;
1096         to->Fpr15 = from->Fpr15;
1097         to->Fpr16 = from->Fpr16;
1098         to->Fpr17 = from->Fpr17;
1099         to->Fpr18 = from->Fpr18;
1100         to->Fpr19 = from->Fpr19;
1101         to->Fpr20 = from->Fpr20;
1102         to->Fpr21 = from->Fpr21;
1103         to->Fpr22 = from->Fpr22;
1104         to->Fpr23 = from->Fpr23;
1105         to->Fpr24 = from->Fpr24;
1106         to->Fpr25 = from->Fpr25;
1107         to->Fpr26 = from->Fpr26;
1108         to->Fpr27 = from->Fpr27;
1109         to->Fpr28 = from->Fpr28;
1110         to->Fpr29 = from->Fpr29;
1111         to->Fpr30 = from->Fpr30;
1112         to->Fpr31 = from->Fpr31;
1113         to->Fpscr = from->Fpscr;
1114     }
1115 #else
1116 #error You must implement context copying for your CPU
1117 #endif
1118 }
1119
1120
1121 /***********************************************************************
1122  *              NtGetContextThread  (NTDLL.@)
1123  *              ZwGetContextThread  (NTDLL.@)
1124  */
1125 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
1126 {
1127     NTSTATUS ret;
1128     CONTEXT ctx;
1129     DWORD dummy, i;
1130     DWORD needed_flags = context->ContextFlags;
1131     BOOL self = (handle == GetCurrentThread());
1132
1133 #ifdef __i386__
1134     /* on i386 debug registers always require a server call */
1135     if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
1136 #endif
1137
1138     if (!self)
1139     {
1140         SERVER_START_REQ( get_thread_context )
1141         {
1142             req->handle  = wine_server_obj_handle( handle );
1143             req->flags   = context->ContextFlags;
1144             req->suspend = 0;
1145             wine_server_set_reply( req, &ctx, sizeof(ctx) );
1146             ret = wine_server_call( req );
1147             self = reply->self;
1148         }
1149         SERVER_END_REQ;
1150
1151         if (ret == STATUS_PENDING)
1152         {
1153             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
1154             {
1155                 for (i = 0; i < 100; i++)
1156                 {
1157                     SERVER_START_REQ( get_thread_context )
1158                     {
1159                         req->handle  = wine_server_obj_handle( handle );
1160                         req->flags   = context->ContextFlags;
1161                         req->suspend = 0;
1162                         wine_server_set_reply( req, &ctx, sizeof(ctx) );
1163                         ret = wine_server_call( req );
1164                     }
1165                     SERVER_END_REQ;
1166                     if (ret == STATUS_PENDING)
1167                     {
1168                         LARGE_INTEGER timeout;
1169                         timeout.QuadPart = -10000;
1170                         NtDelayExecution( FALSE, &timeout );
1171                     }
1172                     else break;
1173                 }
1174                 NtResumeThread( handle, &dummy );
1175             }
1176             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
1177         }
1178         if (ret) return ret;
1179         copy_context( context, &ctx, context->ContextFlags & ctx.ContextFlags );
1180         needed_flags &= ~ctx.ContextFlags;
1181     }
1182
1183     if (self)
1184     {
1185         if (needed_flags)
1186         {
1187             RtlCaptureContext( &ctx );
1188             copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
1189         }
1190 #ifdef __i386__
1191         /* update the cached version of the debug registers */
1192         if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
1193         {
1194             struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
1195             regs->dr0 = context->Dr0;
1196             regs->dr1 = context->Dr1;
1197             regs->dr2 = context->Dr2;
1198             regs->dr3 = context->Dr3;
1199             regs->dr6 = context->Dr6;
1200             regs->dr7 = context->Dr7;
1201         }
1202 #endif
1203     }
1204     return STATUS_SUCCESS;
1205 }
1206
1207
1208 /******************************************************************************
1209  *              NtQueryInformationThread  (NTDLL.@)
1210  *              ZwQueryInformationThread  (NTDLL.@)
1211  */
1212 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
1213                                           void *data, ULONG length, ULONG *ret_len )
1214 {
1215     NTSTATUS status;
1216
1217     switch(class)
1218     {
1219     case ThreadBasicInformation:
1220         {
1221             THREAD_BASIC_INFORMATION info;
1222             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1223
1224             SERVER_START_REQ( get_thread_info )
1225             {
1226                 req->handle = wine_server_obj_handle( handle );
1227                 req->tid_in = 0;
1228                 if (!(status = wine_server_call( req )))
1229                 {
1230                     info.ExitStatus             = reply->exit_code;
1231                     info.TebBaseAddress         = wine_server_get_ptr( reply->teb );
1232                     info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
1233                     info.ClientId.UniqueThread  = ULongToHandle(reply->tid);
1234                     info.AffinityMask           = reply->affinity & affinity_mask;
1235                     info.Priority               = reply->priority;
1236                     info.BasePriority           = reply->priority;  /* FIXME */
1237                 }
1238             }
1239             SERVER_END_REQ;
1240             if (status == STATUS_SUCCESS)
1241             {
1242                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
1243                 if (ret_len) *ret_len = min( length, sizeof(info) );
1244             }
1245         }
1246         return status;
1247     case ThreadAffinityMask:
1248         {
1249             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1250             ULONG_PTR affinity = 0;
1251
1252             SERVER_START_REQ( get_thread_info )
1253             {
1254                 req->handle = wine_server_obj_handle( handle );
1255                 req->tid_in = 0;
1256                 if (!(status = wine_server_call( req )))
1257                     affinity = reply->affinity & affinity_mask;
1258             }
1259             SERVER_END_REQ;
1260             if (status == STATUS_SUCCESS)
1261             {
1262                 if (data) memcpy( data, &affinity, min( length, sizeof(affinity) ));
1263                 if (ret_len) *ret_len = min( length, sizeof(affinity) );
1264             }
1265         }
1266         return status;
1267     case ThreadTimes:
1268         {
1269             KERNEL_USER_TIMES   kusrt;
1270             /* We need to do a server call to get the creation time or exit time */
1271             /* This works on any thread */
1272             SERVER_START_REQ( get_thread_info )
1273             {
1274                 req->handle = wine_server_obj_handle( handle );
1275                 req->tid_in = 0;
1276                 status = wine_server_call( req );
1277                 if (status == STATUS_SUCCESS)
1278                 {
1279                     kusrt.CreateTime.QuadPart = reply->creation_time;
1280                     kusrt.ExitTime.QuadPart = reply->exit_time;
1281                 }
1282             }
1283             SERVER_END_REQ;
1284             if (status == STATUS_SUCCESS)
1285             {
1286                 /* We call times(2) for kernel time or user time */
1287                 /* We can only (portably) do this for the current thread */
1288                 if (handle == GetCurrentThread())
1289                 {
1290                     struct tms time_buf;
1291                     long clocks_per_sec = sysconf(_SC_CLK_TCK);
1292
1293                     times(&time_buf);
1294                     kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
1295                     kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
1296                 }
1297                 else
1298                 {
1299                     static BOOL reported = FALSE;
1300
1301                     kusrt.KernelTime.QuadPart = 0;
1302                     kusrt.UserTime.QuadPart = 0;
1303                     if (reported)
1304                         TRACE("Cannot get kerneltime or usertime of other threads\n");
1305                     else
1306                     {
1307                         FIXME("Cannot get kerneltime or usertime of other threads\n");
1308                         reported = TRUE;
1309                     }
1310                 }
1311                 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
1312                 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
1313             }
1314         }
1315         return status;
1316     case ThreadDescriptorTableEntry:
1317         {
1318 #ifdef __i386__
1319             THREAD_DESCRIPTOR_INFORMATION*      tdi = data;
1320             if (length < sizeof(*tdi))
1321                 status = STATUS_INFO_LENGTH_MISMATCH;
1322             else if (!(tdi->Selector & 4))  /* GDT selector */
1323             {
1324                 unsigned sel = tdi->Selector & ~3;  /* ignore RPL */
1325                 status = STATUS_SUCCESS;
1326                 if (!sel)  /* null selector */
1327                     memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
1328                 else
1329                 {
1330                     tdi->Entry.BaseLow                   = 0;
1331                     tdi->Entry.HighWord.Bits.BaseMid     = 0;
1332                     tdi->Entry.HighWord.Bits.BaseHi      = 0;
1333                     tdi->Entry.LimitLow                  = 0xffff;
1334                     tdi->Entry.HighWord.Bits.LimitHi     = 0xf;
1335                     tdi->Entry.HighWord.Bits.Dpl         = 3;
1336                     tdi->Entry.HighWord.Bits.Sys         = 0;
1337                     tdi->Entry.HighWord.Bits.Pres        = 1;
1338                     tdi->Entry.HighWord.Bits.Granularity = 1;
1339                     tdi->Entry.HighWord.Bits.Default_Big = 1;
1340                     tdi->Entry.HighWord.Bits.Type        = 0x12;
1341                     /* it has to be one of the system GDT selectors */
1342                     if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
1343                     {
1344                         if (sel == (wine_get_cs() & ~3))
1345                             tdi->Entry.HighWord.Bits.Type |= 8;  /* code segment */
1346                         else status = STATUS_ACCESS_DENIED;
1347                     }
1348                 }
1349             }
1350             else
1351             {
1352                 SERVER_START_REQ( get_selector_entry )
1353                 {
1354                     req->handle = wine_server_obj_handle( handle );
1355                     req->entry = tdi->Selector >> 3;
1356                     status = wine_server_call( req );
1357                     if (!status)
1358                     {
1359                         if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1360                             status = STATUS_ACCESS_VIOLATION;
1361                         else
1362                         {
1363                             wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1364                             wine_ldt_set_limit( &tdi->Entry, reply->limit );
1365                             wine_ldt_set_flags( &tdi->Entry, reply->flags );
1366                         }
1367                     }
1368                 }
1369                 SERVER_END_REQ;
1370             }
1371             if (status == STATUS_SUCCESS && ret_len)
1372                 /* yes, that's a bit strange, but it's the way it is */
1373                 *ret_len = sizeof(LDT_ENTRY);
1374 #else
1375             status = STATUS_NOT_IMPLEMENTED;
1376 #endif
1377             return status;
1378         }
1379     case ThreadAmILastThread:
1380         {
1381             SERVER_START_REQ(get_thread_info)
1382             {
1383                 req->handle = wine_server_obj_handle( handle );
1384                 req->tid_in = 0;
1385                 status = wine_server_call( req );
1386                 if (status == STATUS_SUCCESS)
1387                 {
1388                     BOOLEAN last = reply->last;
1389                     if (data) memcpy( data, &last, min( length, sizeof(last) ));
1390                     if (ret_len) *ret_len = min( length, sizeof(last) );
1391                 }
1392             }
1393             SERVER_END_REQ;
1394             return status;
1395         }
1396     case ThreadPriority:
1397     case ThreadBasePriority:
1398     case ThreadImpersonationToken:
1399     case ThreadEnableAlignmentFaultFixup:
1400     case ThreadEventPair_Reusable:
1401     case ThreadQuerySetWin32StartAddress:
1402     case ThreadZeroTlsCell:
1403     case ThreadPerformanceCount:
1404     case ThreadIdealProcessor:
1405     case ThreadPriorityBoost:
1406     case ThreadSetTlsArrayAddress:
1407     case ThreadIsIoPending:
1408     default:
1409         FIXME( "info class %d not supported yet\n", class );
1410         return STATUS_NOT_IMPLEMENTED;
1411     }
1412 }
1413
1414
1415 /******************************************************************************
1416  *              NtSetInformationThread  (NTDLL.@)
1417  *              ZwSetInformationThread  (NTDLL.@)
1418  */
1419 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1420                                         LPCVOID data, ULONG length )
1421 {
1422     NTSTATUS status;
1423     switch(class)
1424     {
1425     case ThreadZeroTlsCell:
1426         if (handle == GetCurrentThread())
1427         {
1428             LIST_ENTRY *entry;
1429             DWORD index;
1430
1431             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1432             index = *(const DWORD *)data;
1433             if (index < TLS_MINIMUM_AVAILABLE)
1434             {
1435                 RtlAcquirePebLock();
1436                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1437                 {
1438                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1439                     teb->TlsSlots[index] = 0;
1440                 }
1441                 RtlReleasePebLock();
1442             }
1443             else
1444             {
1445                 index -= TLS_MINIMUM_AVAILABLE;
1446                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1447                     return STATUS_INVALID_PARAMETER;
1448                 RtlAcquirePebLock();
1449                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1450                 {
1451                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1452                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1453                 }
1454                 RtlReleasePebLock();
1455             }
1456             return STATUS_SUCCESS;
1457         }
1458         FIXME( "ZeroTlsCell not supported on other threads\n" );
1459         return STATUS_NOT_IMPLEMENTED;
1460
1461     case ThreadImpersonationToken:
1462         {
1463             const HANDLE *phToken = data;
1464             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1465             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1466             SERVER_START_REQ( set_thread_info )
1467             {
1468                 req->handle   = wine_server_obj_handle( handle );
1469                 req->token    = wine_server_obj_handle( *phToken );
1470                 req->mask     = SET_THREAD_INFO_TOKEN;
1471                 status = wine_server_call( req );
1472             }
1473             SERVER_END_REQ;
1474         }
1475         return status;
1476     case ThreadBasePriority:
1477         {
1478             const DWORD *pprio = data;
1479             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1480             SERVER_START_REQ( set_thread_info )
1481             {
1482                 req->handle   = wine_server_obj_handle( handle );
1483                 req->priority = *pprio;
1484                 req->mask     = SET_THREAD_INFO_PRIORITY;
1485                 status = wine_server_call( req );
1486             }
1487             SERVER_END_REQ;
1488         }
1489         return status;
1490     case ThreadAffinityMask:
1491         {
1492             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1493             const ULONG_PTR *paff = data;
1494             if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER;
1495             if (*paff & ~affinity_mask) return STATUS_INVALID_PARAMETER;
1496             SERVER_START_REQ( set_thread_info )
1497             {
1498                 req->handle   = wine_server_obj_handle( handle );
1499                 req->affinity = *paff;
1500                 req->mask     = SET_THREAD_INFO_AFFINITY;
1501                 status = wine_server_call( req );
1502             }
1503             SERVER_END_REQ;
1504         }
1505         return status;
1506     case ThreadBasicInformation:
1507     case ThreadTimes:
1508     case ThreadPriority:
1509     case ThreadDescriptorTableEntry:
1510     case ThreadEnableAlignmentFaultFixup:
1511     case ThreadEventPair_Reusable:
1512     case ThreadQuerySetWin32StartAddress:
1513     case ThreadPerformanceCount:
1514     case ThreadAmILastThread:
1515     case ThreadIdealProcessor:
1516     case ThreadPriorityBoost:
1517     case ThreadSetTlsArrayAddress:
1518     case ThreadIsIoPending:
1519     default:
1520         FIXME( "info class %d not supported yet\n", class );
1521         return STATUS_NOT_IMPLEMENTED;
1522     }
1523 }