dlls/ntdll/thread.c

   1 /*
   2  * NT threads support
   3  *
   4  * Copyright 1996, 2003 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <assert.h>
  25 #include <stdarg.h>
  26 #include <sys/types.h>
  27 #ifdef HAVE_SYS_MMAN_H
  28 #include <sys/mman.h>
  29 #endif
  30 #ifdef HAVE_SYS_TIMES_H
  31 #include <sys/times.h>
  32 #endif
  33
  34 #define NONAMELESSUNION
  35 #include "ntstatus.h"
  36 #define WIN32_NO_STATUS
  37 #include "winternl.h"
  38 #include "wine/library.h"
  39 #include "wine/server.h"
  40 #include "wine/debug.h"
  41 #include "ntdll_misc.h"
  42 #include "ddk/wdm.h"
  43 #include "wine/exception.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  46 WINE_DECLARE_DEBUG_CHANNEL(relay);
  47
  48 struct _KUSER_SHARED_DATA *user_shared_data = NULL;
  49
  50 PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter = NULL;
  51
  52 /* info passed to a starting thread */
  53 struct startup_info
  54 {
  55     TEB                            *teb;
  56     PRTL_THREAD_START_ROUTINE       entry_point;
  57     void                           *entry_arg;
  58 };
  59
  60 static PEB *peb;
  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 int nb_threads = 1;
  69
  70 /***********************************************************************
  71  *           get_unicode_string
  72  *
  73  * Copy a unicode string from the startup info.
  74  */
  75 static inline void get_unicode_string( UNICODE_STRING *str, WCHAR **src, WCHAR **dst, UINT len )
  76 {
  77     str->Buffer = *dst;
  78     str->Length = len;
  79     str->MaximumLength = len + sizeof(WCHAR);
  80     memcpy( str->Buffer, *src, len );
  81     str->Buffer[len / sizeof(WCHAR)] = 0;
  82     *src += len / sizeof(WCHAR);
  83     *dst += len / sizeof(WCHAR) + 1;
  84 }
  85
  86 /***********************************************************************
  87  *           init_user_process_params
  88  *
  89  * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
  90  */
  91 static NTSTATUS init_user_process_params( SIZE_T data_size, HANDLE *exe_file )
  92 {
  93     void *ptr;
  94     WCHAR *src, *dst;
  95     SIZE_T info_size, env_size, size, alloc_size;
  96     NTSTATUS status;
  97     startup_info_t *info;
  98     RTL_USER_PROCESS_PARAMETERS *params = NULL;
  99
 100     if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, data_size )))
 101         return STATUS_NO_MEMORY;
 102
 103     SERVER_START_REQ( get_startup_info )
 104     {
 105         wine_server_set_reply( req, info, data_size );
 106         if (!(status = wine_server_call( req )))
 107         {
 108             data_size = wine_server_reply_size( reply );
 109             info_size = reply->info_size;
 110             env_size  = data_size - info_size;
 111             *exe_file = wine_server_ptr_handle( reply->exe_file );
 112         }
 113     }
 114     SERVER_END_REQ;
 115     if (status != STATUS_SUCCESS) goto done;
 116
 117     size = sizeof(*params);
 118     size += MAX_NT_PATH_LENGTH * sizeof(WCHAR);
 119     size += info->dllpath_len + sizeof(WCHAR);
 120     size += info->imagepath_len + sizeof(WCHAR);
 121     size += info->cmdline_len + sizeof(WCHAR);
 122     size += info->title_len + sizeof(WCHAR);
 123     size += info->desktop_len + sizeof(WCHAR);
 124     size += info->shellinfo_len + sizeof(WCHAR);
 125     size += info->runtime_len + sizeof(WCHAR);
 126
 127     alloc_size = size;
 128     status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &alloc_size,
 129                                       MEM_COMMIT, PAGE_READWRITE );
 130     if (status != STATUS_SUCCESS) goto done;
 131
 132     NtCurrentTeb()->Peb->ProcessParameters = params;
 133     params->AllocationSize  = alloc_size;
 134     params->Size            = size;
 135     params->Flags           = PROCESS_PARAMS_FLAG_NORMALIZED;
 136     params->DebugFlags      = info->debug_flags;
 137     params->ConsoleHandle   = wine_server_ptr_handle( info->console );
 138     params->ConsoleFlags    = info->console_flags;
 139     params->hStdInput       = wine_server_ptr_handle( info->hstdin );
 140     params->hStdOutput      = wine_server_ptr_handle( info->hstdout );
 141     params->hStdError       = wine_server_ptr_handle( info->hstderr );
 142     params->dwX             = info->x;
 143     params->dwY             = info->y;
 144     params->dwXSize         = info->xsize;
 145     params->dwYSize         = info->ysize;
 146     params->dwXCountChars   = info->xchars;
 147     params->dwYCountChars   = info->ychars;
 148     params->dwFillAttribute = info->attribute;
 149     params->dwFlags         = info->flags;
 150     params->wShowWindow     = info->show;
 151
 152     src = (WCHAR *)(info + 1);
 153     dst = (WCHAR *)(params + 1);
 154
 155     /* current directory needs more space */
 156     get_unicode_string( &params->CurrentDirectory.DosPath, &src, &dst, info->curdir_len );
 157     params->CurrentDirectory.DosPath.MaximumLength = MAX_NT_PATH_LENGTH * sizeof(WCHAR);
 158     dst = (WCHAR *)(params + 1) + MAX_NT_PATH_LENGTH;
 159
 160     get_unicode_string( &params->DllPath, &src, &dst, info->dllpath_len );
 161     get_unicode_string( &params->ImagePathName, &src, &dst, info->imagepath_len );
 162     get_unicode_string( &params->CommandLine, &src, &dst, info->cmdline_len );
 163     get_unicode_string( &params->WindowTitle, &src, &dst, info->title_len );
 164     get_unicode_string( &params->Desktop, &src, &dst, info->desktop_len );
 165     get_unicode_string( &params->ShellInfo, &src, &dst, info->shellinfo_len );
 166
 167     /* runtime info isn't a real string */
 168     params->RuntimeInfo.Buffer = dst;
 169     params->RuntimeInfo.Length = params->RuntimeInfo.MaximumLength = info->runtime_len;
 170     memcpy( dst, src, info->runtime_len );
 171
 172     /* environment needs to be a separate memory block */
 173     ptr = NULL;
 174     alloc_size = max( 1, env_size );
 175     status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &alloc_size,
 176                                       MEM_COMMIT, PAGE_READWRITE );
 177     if (status != STATUS_SUCCESS) goto done;
 178     memcpy( ptr, (char *)info + info_size, env_size );
 179     params->Environment = ptr;
 180
 181 done:
 182     RtlFreeHeap( GetProcessHeap(), 0, info );
 183     return status;
 184 }
 185
 186 /***********************************************************************
 187  *           thread_init
 188  *
 189  * Setup the initial thread.
 190  *
 191  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 192  */
 193 HANDLE thread_init(void)
 194 {
 195     TEB *teb;
 196     void *addr;
 197     SIZE_T size, info_size;
 198     HANDLE exe_file = 0;
 199     LARGE_INTEGER now;
 200     struct ntdll_thread_data *thread_data;
 201     static struct debug_info debug_info;  /* debug info for initial thread */
 202
 203     virtual_init();
 204
 205     /* reserve space for shared user data */
 206
 207     addr = (void *)0x7ffe0000;
 208     size = 0x10000;
 209     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE );
 210     user_shared_data = addr;
 211
 212     /* allocate and initialize the PEB */
 213
 214     addr = NULL;
 215     size = sizeof(*peb);
 216     NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 1, &size,
 217                              MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
 218     peb = addr;
 219
 220     peb->ProcessParameters  = &params;
 221     peb->TlsBitmap          = &tls_bitmap;
 222     peb->TlsExpansionBitmap = &tls_expansion_bitmap;
 223     peb->FlsBitmap          = &fls_bitmap;
 224     peb->LdrData            = &ldr;
 225     params.CurrentDirectory.DosPath.Buffer = current_dir;
 226     params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
 227     params.wShowWindow = 1; /* SW_SHOWNORMAL */
 228     RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 );
 229     RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits,
 230                          sizeof(peb->TlsExpansionBitmapBits) * 8 );
 231     RtlInitializeBitMap( &fls_bitmap, peb->FlsBitmapBits, sizeof(peb->FlsBitmapBits) * 8 );
 232     InitializeListHead( &peb->FlsListHead );
 233     InitializeListHead( &ldr.InLoadOrderModuleList );
 234     InitializeListHead( &ldr.InMemoryOrderModuleList );
 235     InitializeListHead( &ldr.InInitializationOrderModuleList );
 236     InitializeListHead( &tls_links );
 237
 238     /* allocate and initialize the initial TEB */
 239
 240     signal_alloc_thread( &teb );
 241     teb->Peb = peb;
 242     teb->Tib.StackBase = (void *)~0UL;
 243     teb->StaticUnicodeString.Buffer = teb->StaticUnicodeBuffer;
 244     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
 245
 246     thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
 247     thread_data->request_fd = -1;
 248     thread_data->reply_fd   = -1;
 249     thread_data->wait_fd[0] = -1;
 250     thread_data->wait_fd[1] = -1;
 251     thread_data->debug_info = &debug_info;
 252     InsertHeadList( &tls_links, &teb->TlsLinks );
 253
 254     signal_init_thread( teb );
 255     virtual_init_threading();
 256
 257     debug_info.str_pos = debug_info.strings;
 258     debug_info.out_pos = debug_info.output;
 259     debug_init();
 260
 261     /* setup the server connection */
 262     server_init_process();
 263     info_size = server_init_thread( peb );
 264
 265     /* create the process heap */
 266     if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
 267     {
 268         MESSAGE( "wine: failed to create the process heap\n" );
 269         exit(1);
 270     }
 271
 272     /* allocate user parameters */
 273     if (info_size)
 274     {
 275         init_user_process_params( info_size, &exe_file );
 276     }
 277     else
 278     {
 279         if (isatty(0) || isatty(1) || isatty(2))
 280             params.ConsoleHandle = (HANDLE)2; /* see kernel32/kernel_private.h */
 281         if (!isatty(0))
 282             wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE,  OBJ_INHERIT, &params.hStdInput );
 283         if (!isatty(1))
 284             wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
 285         if (!isatty(2))
 286             wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
 287     }
 288
 289     /* initialize time values in user_shared_data */
 290     NtQuerySystemTime( &now );
 291     user_shared_data->SystemTime.LowPart = now.u.LowPart;
 292     user_shared_data->SystemTime.High1Time = user_shared_data->SystemTime.High2Time = now.u.HighPart;
 293     user_shared_data->u.TickCountQuad = (now.QuadPart - server_start_time) / 10000;
 294     user_shared_data->u.TickCount.High2Time = user_shared_data->u.TickCount.High1Time;
 295     user_shared_data->TickCountLowDeprecated = user_shared_data->u.TickCount.LowPart;
 296     user_shared_data->TickCountMultiplier = 1 << 24;
 297
 298     fill_cpu_info();
 299
 300     return exe_file;
 301 }
 302
 303
 304 /***********************************************************************
 305  *           terminate_thread
 306  */
 307 void terminate_thread( int status )
 308 {
 309     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 310     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1) _exit( status );
 311
 312     close( ntdll_get_thread_data()->wait_fd[0] );
 313     close( ntdll_get_thread_data()->wait_fd[1] );
 314     close( ntdll_get_thread_data()->reply_fd );
 315     close( ntdll_get_thread_data()->request_fd );
 316     pthread_exit( UIntToPtr(status) );
 317 }
 318
 319
 320 /***********************************************************************
 321  *           exit_thread
 322  */
 323 void exit_thread( int status )
 324 {
 325     static void *prev_teb;
 326     TEB *teb;
 327
 328     if (status)  /* send the exit code to the server (0 is already the default) */
 329     {
 330         SERVER_START_REQ( terminate_thread )
 331         {
 332             req->handle    = wine_server_obj_handle( GetCurrentThread() );
 333             req->exit_code = status;
 334             wine_server_call( req );
 335         }
 336         SERVER_END_REQ;
 337     }
 338
 339     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1)
 340     {
 341         LdrShutdownProcess();
 342         exit( status );
 343     }
 344
 345     LdrShutdownThread();
 346     RtlAcquirePebLock();
 347     RemoveEntryList( &NtCurrentTeb()->TlsLinks );
 348     RtlReleasePebLock();
 349     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots );
 350     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
 351
 352     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 353
 354     if ((teb = interlocked_xchg_ptr( &prev_teb, NtCurrentTeb() )))
 355     {
 356         struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
 357
 358         if (thread_data->pthread_id)
 359         {
 360             pthread_join( thread_data->pthread_id, NULL );
 361             signal_free_thread( teb );
 362         }
 363     }
 364
 365     close( ntdll_get_thread_data()->wait_fd[0] );
 366     close( ntdll_get_thread_data()->wait_fd[1] );
 367     close( ntdll_get_thread_data()->reply_fd );
 368     close( ntdll_get_thread_data()->request_fd );
 369     pthread_exit( UIntToPtr(status) );
 370 }
 371
 372
 373 /***********************************************************************
 374  *           start_thread
 375  *
 376  * Startup routine for a newly created thread.
 377  */
 378 static void start_thread( struct startup_info *info )
 379 {
 380     TEB *teb = info->teb;
 381     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
 382     PRTL_THREAD_START_ROUTINE func = info->entry_point;
 383     void *arg = info->entry_arg;
 384     struct debug_info debug_info;
 385
 386     debug_info.str_pos = debug_info.strings;
 387     debug_info.out_pos = debug_info.output;
 388     thread_data->debug_info = &debug_info;
 389     thread_data->pthread_id = pthread_self();
 390
 391     signal_init_thread( teb );
 392     server_init_thread( func );
 393     pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
 394
 395     RtlAcquirePebLock();
 396     InsertHeadList( &tls_links, &teb->TlsLinks );
 397     RtlReleasePebLock();
 398
 399     MODULE_DllThreadAttach( NULL );
 400
 401     if (TRACE_ON(relay))
 402         DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), func, arg );
 403
 404     call_thread_entry_point( (LPTHREAD_START_ROUTINE)func, arg );
 405 }
 406
 407
 408 /***********************************************************************
 409  *              RtlCreateUserThread   (NTDLL.@)
 410  */
 411 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 412                                      BOOLEAN suspended, PVOID stack_addr,
 413                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 414                                      PRTL_THREAD_START_ROUTINE start, void *param,
 415                                      HANDLE *handle_ptr, CLIENT_ID *id )
 416 {
 417     sigset_t sigset;
 418     pthread_t pthread_id;
 419     pthread_attr_t attr;
 420     struct ntdll_thread_data *thread_data;
 421     struct startup_info *info = NULL;
 422     HANDLE handle = 0;
 423     TEB *teb = NULL;
 424     DWORD tid = 0;
 425     int request_pipe[2];
 426     NTSTATUS status;
 427
 428     if (process != NtCurrentProcess())
 429     {
 430         apc_call_t call;
 431         apc_result_t result;
 432
 433         memset( &call, 0, sizeof(call) );
 434
 435         call.create_thread.type    = APC_CREATE_THREAD;
 436         call.create_thread.func    = wine_server_client_ptr( start );
 437         call.create_thread.arg     = wine_server_client_ptr( param );
 438         call.create_thread.reserve = stack_reserve;
 439         call.create_thread.commit  = stack_commit;
 440         call.create_thread.suspend = suspended;
 441         status = NTDLL_queue_process_apc( process, &call, &result );
 442         if (status != STATUS_SUCCESS) return status;
 443
 444         if (result.create_thread.status == STATUS_SUCCESS)
 445         {
 446             if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid);
 447             if (handle_ptr) *handle_ptr = wine_server_ptr_handle( result.create_thread.handle );
 448             else NtClose( wine_server_ptr_handle( result.create_thread.handle ));
 449         }
 450         return result.create_thread.status;
 451     }
 452
 453     if (server_pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 454     wine_server_send_fd( request_pipe[0] );
 455
 456     SERVER_START_REQ( new_thread )
 457     {
 458         req->access     = THREAD_ALL_ACCESS;
 459         req->attributes = 0;  /* FIXME */
 460         req->suspend    = suspended;
 461         req->request_fd = request_pipe[0];
 462         if (!(status = wine_server_call( req )))
 463         {
 464             handle = wine_server_ptr_handle( reply->handle );
 465             tid = reply->tid;
 466         }
 467         close( request_pipe[0] );
 468     }
 469     SERVER_END_REQ;
 470
 471     if (status)
 472     {
 473         close( request_pipe[1] );
 474         return status;
 475     }
 476
 477     pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
 478
 479     if ((status = signal_alloc_thread( &teb ))) goto error;
 480
 481     teb->Peb = NtCurrentTeb()->Peb;
 482     teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId());
 483     teb->ClientId.UniqueThread  = ULongToHandle(tid);
 484     teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
 485     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
 486
 487     info = (struct startup_info *)(teb + 1);
 488     info->teb         = teb;
 489     info->entry_point = start;
 490     info->entry_arg   = param;
 491
 492     thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
 493     thread_data->request_fd  = request_pipe[1];
 494     thread_data->reply_fd    = -1;
 495     thread_data->wait_fd[0]  = -1;
 496     thread_data->wait_fd[1]  = -1;
 497
 498     if ((status = virtual_alloc_thread_stack( teb, stack_reserve, stack_commit ))) goto error;
 499
 500     pthread_attr_init( &attr );
 501     pthread_attr_setstack( &attr, teb->DeallocationStack,
 502                            (char *)teb->Tib.StackBase - (char *)teb->DeallocationStack );
 503     pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM ); /* force creating a kernel thread */
 504     interlocked_xchg_add( &nb_threads, 1 );
 505     if (pthread_create( &pthread_id, &attr, (void * (*)(void *))start_thread, info ))
 506     {
 507         interlocked_xchg_add( &nb_threads, -1 );
 508         pthread_attr_destroy( &attr );
 509         status = STATUS_NO_MEMORY;
 510         goto error;
 511     }
 512     pthread_attr_destroy( &attr );
 513     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 514
 515     if (id) id->UniqueThread = ULongToHandle(tid);
 516     if (handle_ptr) *handle_ptr = handle;
 517     else NtClose( handle );
 518
 519     return STATUS_SUCCESS;
 520
 521 error:
 522     if (teb) signal_free_thread( teb );
 523     if (handle) NtClose( handle );
 524     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 525     close( request_pipe[1] );
 526     return status;
 527 }
 528
 529
 530 /******************************************************************************
 531  *              RtlGetNtGlobalFlags   (NTDLL.@)
 532  */
 533 ULONG WINAPI RtlGetNtGlobalFlags(void)
 534 {
 535     if (!peb) return 0;  /* init not done yet */
 536     return peb->NtGlobalFlag;
 537 }
 538
 539
 540 /***********************************************************************
 541  *              NtOpenThread   (NTDLL.@)
 542  *              ZwOpenThread   (NTDLL.@)
 543  */
 544 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 545                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 546 {
 547     NTSTATUS ret;
 548
 549     SERVER_START_REQ( open_thread )
 550     {
 551         req->tid        = HandleToULong(id->UniqueThread);
 552         req->access     = access;
 553         req->attributes = attr ? attr->Attributes : 0;
 554         ret = wine_server_call( req );
 555         *handle = wine_server_ptr_handle( reply->handle );
 556     }
 557     SERVER_END_REQ;
 558     return ret;
 559 }
 560
 561
 562 /******************************************************************************
 563  *              NtSuspendThread   (NTDLL.@)
 564  *              ZwSuspendThread   (NTDLL.@)
 565  */
 566 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 567 {
 568     NTSTATUS ret;
 569
 570     SERVER_START_REQ( suspend_thread )
 571     {
 572         req->handle = wine_server_obj_handle( handle );
 573         if (!(ret = wine_server_call( req ))) *count = reply->count;
 574     }
 575     SERVER_END_REQ;
 576     return ret;
 577 }
 578
 579
 580 /******************************************************************************
 581  *              NtResumeThread   (NTDLL.@)
 582  *              ZwResumeThread   (NTDLL.@)
 583  */
 584 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 585 {
 586     NTSTATUS ret;
 587
 588     SERVER_START_REQ( resume_thread )
 589     {
 590         req->handle = wine_server_obj_handle( handle );
 591         if (!(ret = wine_server_call( req ))) *count = reply->count;
 592     }
 593     SERVER_END_REQ;
 594     return ret;
 595 }
 596
 597
 598 /******************************************************************************
 599  *              NtAlertResumeThread   (NTDLL.@)
 600  *              ZwAlertResumeThread   (NTDLL.@)
 601  */
 602 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
 603 {
 604     FIXME( "stub: should alert thread %p\n", handle );
 605     return NtResumeThread( handle, count );
 606 }
 607
 608
 609 /******************************************************************************
 610  *              NtAlertThread   (NTDLL.@)
 611  *              ZwAlertThread   (NTDLL.@)
 612  */
 613 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
 614 {
 615     FIXME( "stub: %p\n", handle );
 616     return STATUS_NOT_IMPLEMENTED;
 617 }
 618
 619
 620 /******************************************************************************
 621  *              NtTerminateThread  (NTDLL.@)
 622  *              ZwTerminateThread  (NTDLL.@)
 623  */
 624 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 625 {
 626     NTSTATUS ret;
 627     BOOL self;
 628
 629     SERVER_START_REQ( terminate_thread )
 630     {
 631         req->handle    = wine_server_obj_handle( handle );
 632         req->exit_code = exit_code;
 633         ret = wine_server_call( req );
 634         self = !ret && reply->self;
 635     }
 636     SERVER_END_REQ;
 637
 638     if (self) abort_thread( exit_code );
 639     return ret;
 640 }
 641
 642
 643 /******************************************************************************
 644  *              NtQueueApcThread  (NTDLL.@)
 645  */
 646 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 647                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 648 {
 649     NTSTATUS ret;
 650     SERVER_START_REQ( queue_apc )
 651     {
 652         req->handle = wine_server_obj_handle( handle );
 653         if (func)
 654         {
 655             req->call.type         = APC_USER;
 656             req->call.user.func    = wine_server_client_ptr( func );
 657             req->call.user.args[0] = arg1;
 658             req->call.user.args[1] = arg2;
 659             req->call.user.args[2] = arg3;
 660         }
 661         else req->call.type = APC_NONE;  /* wake up only */
 662         ret = wine_server_call( req );
 663     }
 664     SERVER_END_REQ;
 665     return ret;
 666 }
 667
 668
 669 /***********************************************************************
 670  *              NtSetContextThread  (NTDLL.@)
 671  *              ZwSetContextThread  (NTDLL.@)
 672  */
 673 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 674 {
 675     NTSTATUS ret;
 676     DWORD dummy, i;
 677     BOOL self = FALSE;
 678
 679 #ifdef __i386__
 680     /* on i386 debug registers always require a server call */
 681     self = (handle == GetCurrentThread());
 682     if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
 683     {
 684         self = (ntdll_get_thread_data()->dr0 == context->Dr0 &&
 685                 ntdll_get_thread_data()->dr1 == context->Dr1 &&
 686                 ntdll_get_thread_data()->dr2 == context->Dr2 &&
 687                 ntdll_get_thread_data()->dr3 == context->Dr3 &&
 688                 ntdll_get_thread_data()->dr6 == context->Dr6 &&
 689                 ntdll_get_thread_data()->dr7 == context->Dr7);
 690     }
 691 #endif
 692
 693     if (!self)
 694     {
 695         context_t server_context;
 696
 697         context_to_server( &server_context, context );
 698
 699         SERVER_START_REQ( set_thread_context )
 700         {
 701             req->handle  = wine_server_obj_handle( handle );
 702             req->suspend = 1;
 703             wine_server_add_data( req, &server_context, sizeof(server_context) );
 704             ret = wine_server_call( req );
 705             self = reply->self;
 706         }
 707         SERVER_END_REQ;
 708
 709         if (ret == STATUS_PENDING)
 710         {
 711             for (i = 0; i < 100; i++)
 712             {
 713                 SERVER_START_REQ( set_thread_context )
 714                 {
 715                     req->handle  = wine_server_obj_handle( handle );
 716                     req->suspend = 0;
 717                     wine_server_add_data( req, &server_context, sizeof(server_context) );
 718                     ret = wine_server_call( req );
 719                 }
 720                 SERVER_END_REQ;
 721                 if (ret == STATUS_PENDING)
 722                 {
 723                     LARGE_INTEGER timeout;
 724                     timeout.QuadPart = -10000;
 725                     NtDelayExecution( FALSE, &timeout );
 726                 }
 727                 else break;
 728             }
 729             NtResumeThread( handle, &dummy );
 730             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 731         }
 732
 733         if (ret) return ret;
 734     }
 735
 736     if (self) set_cpu_context( context );
 737     return STATUS_SUCCESS;
 738 }
 739
 740
 741 /* convert CPU-specific flags to generic server flags */
 742 static inline unsigned int get_server_context_flags( DWORD flags )
 743 {
 744     unsigned int ret = 0;
 745
 746     flags &= 0x3f;  /* mask CPU id flags */
 747     if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
 748     if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
 749 #ifdef CONTEXT_SEGMENTS
 750     if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
 751 #endif
 752 #ifdef CONTEXT_FLOATING_POINT
 753     if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
 754 #endif
 755 #ifdef CONTEXT_DEBUG_REGISTERS
 756     if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
 757 #endif
 758 #ifdef CONTEXT_EXTENDED_REGISTERS
 759     if (flags & CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS;
 760 #endif
 761     return ret;
 762 }
 763
 764 /***********************************************************************
 765  *              NtGetContextThread  (NTDLL.@)
 766  *              ZwGetContextThread  (NTDLL.@)
 767  */
 768 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
 769 {
 770     NTSTATUS ret;
 771     DWORD dummy, i;
 772     DWORD needed_flags = context->ContextFlags;
 773     BOOL self = (handle == GetCurrentThread());
 774
 775 #ifdef __i386__
 776     /* on i386 debug registers always require a server call */
 777     if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
 778 #endif
 779
 780     if (!self)
 781     {
 782         unsigned int server_flags = get_server_context_flags( context->ContextFlags );
 783         context_t server_context;
 784
 785         SERVER_START_REQ( get_thread_context )
 786         {
 787             req->handle  = wine_server_obj_handle( handle );
 788             req->flags   = server_flags;
 789             req->suspend = 1;
 790             wine_server_set_reply( req, &server_context, sizeof(server_context) );
 791             ret = wine_server_call( req );
 792             self = reply->self;
 793         }
 794         SERVER_END_REQ;
 795
 796         if (ret == STATUS_PENDING)
 797         {
 798             for (i = 0; i < 100; i++)
 799             {
 800                 SERVER_START_REQ( get_thread_context )
 801                 {
 802                     req->handle  = wine_server_obj_handle( handle );
 803                     req->flags   = server_flags;
 804                     req->suspend = 0;
 805                     wine_server_set_reply( req, &server_context, sizeof(server_context) );
 806                     ret = wine_server_call( req );
 807                 }
 808                 SERVER_END_REQ;
 809                 if (ret == STATUS_PENDING)
 810                 {
 811                     LARGE_INTEGER timeout;
 812                     timeout.QuadPart = -10000;
 813                     NtDelayExecution( FALSE, &timeout );
 814                 }
 815                 else break;
 816             }
 817             NtResumeThread( handle, &dummy );
 818             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 819         }
 820         if (!ret) ret = context_from_server( context, &server_context );
 821         if (ret) return ret;
 822         needed_flags &= ~context->ContextFlags;
 823     }
 824
 825     if (self)
 826     {
 827         if (needed_flags)
 828         {
 829             CONTEXT ctx;
 830             RtlCaptureContext( &ctx );
 831             copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
 832             context->ContextFlags |= ctx.ContextFlags & needed_flags;
 833         }
 834 #ifdef __i386__
 835         /* update the cached version of the debug registers */
 836         if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
 837         {
 838             ntdll_get_thread_data()->dr0 = context->Dr0;
 839             ntdll_get_thread_data()->dr1 = context->Dr1;
 840             ntdll_get_thread_data()->dr2 = context->Dr2;
 841             ntdll_get_thread_data()->dr3 = context->Dr3;
 842             ntdll_get_thread_data()->dr6 = context->Dr6;
 843             ntdll_get_thread_data()->dr7 = context->Dr7;
 844         }
 845 #endif
 846     }
 847     return STATUS_SUCCESS;
 848 }
 849
 850
 851 /******************************************************************************
 852  *              NtQueryInformationThread  (NTDLL.@)
 853  *              ZwQueryInformationThread  (NTDLL.@)
 854  */
 855 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
 856                                           void *data, ULONG length, ULONG *ret_len )
 857 {
 858     NTSTATUS status;
 859
 860     switch(class)
 861     {
 862     case ThreadBasicInformation:
 863         {
 864             THREAD_BASIC_INFORMATION info;
 865             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 866
 867             SERVER_START_REQ( get_thread_info )
 868             {
 869                 req->handle = wine_server_obj_handle( handle );
 870                 req->tid_in = 0;
 871                 if (!(status = wine_server_call( req )))
 872                 {
 873                     info.ExitStatus             = reply->exit_code;
 874                     info.TebBaseAddress         = wine_server_get_ptr( reply->teb );
 875                     info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
 876                     info.ClientId.UniqueThread  = ULongToHandle(reply->tid);
 877                     info.AffinityMask           = reply->affinity & affinity_mask;
 878                     info.Priority               = reply->priority;
 879                     info.BasePriority           = reply->priority;  /* FIXME */
 880                 }
 881             }
 882             SERVER_END_REQ;
 883             if (status == STATUS_SUCCESS)
 884             {
 885                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
 886                 if (ret_len) *ret_len = min( length, sizeof(info) );
 887             }
 888         }
 889         return status;
 890     case ThreadAffinityMask:
 891         {
 892             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 893             ULONG_PTR affinity = 0;
 894
 895             SERVER_START_REQ( get_thread_info )
 896             {
 897                 req->handle = wine_server_obj_handle( handle );
 898                 req->tid_in = 0;
 899                 if (!(status = wine_server_call( req )))
 900                     affinity = reply->affinity & affinity_mask;
 901             }
 902             SERVER_END_REQ;
 903             if (status == STATUS_SUCCESS)
 904             {
 905                 if (data) memcpy( data, &affinity, min( length, sizeof(affinity) ));
 906                 if (ret_len) *ret_len = min( length, sizeof(affinity) );
 907             }
 908         }
 909         return status;
 910     case ThreadTimes:
 911         {
 912             KERNEL_USER_TIMES   kusrt;
 913             /* We need to do a server call to get the creation time or exit time */
 914             /* This works on any thread */
 915             SERVER_START_REQ( get_thread_info )
 916             {
 917                 req->handle = wine_server_obj_handle( handle );
 918                 req->tid_in = 0;
 919                 status = wine_server_call( req );
 920                 if (status == STATUS_SUCCESS)
 921                 {
 922                     kusrt.CreateTime.QuadPart = reply->creation_time;
 923                     kusrt.ExitTime.QuadPart = reply->exit_time;
 924                 }
 925             }
 926             SERVER_END_REQ;
 927             if (status == STATUS_SUCCESS)
 928             {
 929                 /* We call times(2) for kernel time or user time */
 930                 /* We can only (portably) do this for the current thread */
 931                 if (handle == GetCurrentThread())
 932                 {
 933                     struct tms time_buf;
 934                     long clocks_per_sec = sysconf(_SC_CLK_TCK);
 935
 936                     times(&time_buf);
 937                     kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
 938                     kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
 939                 }
 940                 else
 941                 {
 942                     static BOOL reported = FALSE;
 943
 944                     kusrt.KernelTime.QuadPart = 0;
 945                     kusrt.UserTime.QuadPart = 0;
 946                     if (reported)
 947                         TRACE("Cannot get kerneltime or usertime of other threads\n");
 948                     else
 949                     {
 950                         FIXME("Cannot get kerneltime or usertime of other threads\n");
 951                         reported = TRUE;
 952                     }
 953                 }
 954                 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
 955                 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
 956             }
 957         }
 958         return status;
 959     case ThreadDescriptorTableEntry:
 960         {
 961 #ifdef __i386__
 962             THREAD_DESCRIPTOR_INFORMATION*      tdi = data;
 963             if (length < sizeof(*tdi))
 964                 status = STATUS_INFO_LENGTH_MISMATCH;
 965             else if (!(tdi->Selector & 4))  /* GDT selector */
 966             {
 967                 unsigned sel = tdi->Selector & ~3;  /* ignore RPL */
 968                 status = STATUS_SUCCESS;
 969                 if (!sel)  /* null selector */
 970                     memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
 971                 else
 972                 {
 973                     tdi->Entry.BaseLow                   = 0;
 974                     tdi->Entry.HighWord.Bits.BaseMid     = 0;
 975                     tdi->Entry.HighWord.Bits.BaseHi      = 0;
 976                     tdi->Entry.LimitLow                  = 0xffff;
 977                     tdi->Entry.HighWord.Bits.LimitHi     = 0xf;
 978                     tdi->Entry.HighWord.Bits.Dpl         = 3;
 979                     tdi->Entry.HighWord.Bits.Sys         = 0;
 980                     tdi->Entry.HighWord.Bits.Pres        = 1;
 981                     tdi->Entry.HighWord.Bits.Granularity = 1;
 982                     tdi->Entry.HighWord.Bits.Default_Big = 1;
 983                     tdi->Entry.HighWord.Bits.Type        = 0x12;
 984                     /* it has to be one of the system GDT selectors */
 985                     if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
 986                     {
 987                         if (sel == (wine_get_cs() & ~3))
 988                             tdi->Entry.HighWord.Bits.Type |= 8;  /* code segment */
 989                         else status = STATUS_ACCESS_DENIED;
 990                     }
 991                 }
 992             }
 993             else
 994             {
 995                 SERVER_START_REQ( get_selector_entry )
 996                 {
 997                     req->handle = wine_server_obj_handle( handle );
 998                     req->entry = tdi->Selector >> 3;
 999                     status = wine_server_call( req );
1000                     if (!status)
1001                     {
1002                         if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1003                             status = STATUS_ACCESS_VIOLATION;
1004                         else
1005                         {
1006                             wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1007                             wine_ldt_set_limit( &tdi->Entry, reply->limit );
1008                             wine_ldt_set_flags( &tdi->Entry, reply->flags );
1009                         }
1010                     }
1011                 }
1012                 SERVER_END_REQ;
1013             }
1014             if (status == STATUS_SUCCESS && ret_len)
1015                 /* yes, that's a bit strange, but it's the way it is */
1016                 *ret_len = sizeof(LDT_ENTRY);
1017 #else
1018             status = STATUS_NOT_IMPLEMENTED;
1019 #endif
1020             return status;
1021         }
1022     case ThreadAmILastThread:
1023         {
1024             SERVER_START_REQ(get_thread_info)
1025             {
1026                 req->handle = wine_server_obj_handle( handle );
1027                 req->tid_in = 0;
1028                 status = wine_server_call( req );
1029                 if (status == STATUS_SUCCESS)
1030                 {
1031                     BOOLEAN last = reply->last;
1032                     if (data) memcpy( data, &last, min( length, sizeof(last) ));
1033                     if (ret_len) *ret_len = min( length, sizeof(last) );
1034                 }
1035             }
1036             SERVER_END_REQ;
1037             return status;
1038         }
1039     case ThreadPriority:
1040     case ThreadBasePriority:
1041     case ThreadImpersonationToken:
1042     case ThreadEnableAlignmentFaultFixup:
1043     case ThreadEventPair_Reusable:
1044     case ThreadQuerySetWin32StartAddress:
1045     case ThreadZeroTlsCell:
1046     case ThreadPerformanceCount:
1047     case ThreadIdealProcessor:
1048     case ThreadPriorityBoost:
1049     case ThreadSetTlsArrayAddress:
1050     case ThreadIsIoPending:
1051     default:
1052         FIXME( "info class %d not supported yet\n", class );
1053         return STATUS_NOT_IMPLEMENTED;
1054     }
1055 }
1056
1057
1058 /******************************************************************************
1059  *              NtSetInformationThread  (NTDLL.@)
1060  *              ZwSetInformationThread  (NTDLL.@)
1061  */
1062 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1063                                         LPCVOID data, ULONG length )
1064 {
1065     NTSTATUS status;
1066     switch(class)
1067     {
1068     case ThreadZeroTlsCell:
1069         if (handle == GetCurrentThread())
1070         {
1071             LIST_ENTRY *entry;
1072             DWORD index;
1073
1074             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1075             index = *(const DWORD *)data;
1076             if (index < TLS_MINIMUM_AVAILABLE)
1077             {
1078                 RtlAcquirePebLock();
1079                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1080                 {
1081                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1082                     teb->TlsSlots[index] = 0;
1083                 }
1084                 RtlReleasePebLock();
1085             }
1086             else
1087             {
1088                 index -= TLS_MINIMUM_AVAILABLE;
1089                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1090                     return STATUS_INVALID_PARAMETER;
1091                 RtlAcquirePebLock();
1092                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1093                 {
1094                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1095                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1096                 }
1097                 RtlReleasePebLock();
1098             }
1099             return STATUS_SUCCESS;
1100         }
1101         FIXME( "ZeroTlsCell not supported on other threads\n" );
1102         return STATUS_NOT_IMPLEMENTED;
1103
1104     case ThreadImpersonationToken:
1105         {
1106             const HANDLE *phToken = data;
1107             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1108             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1109             SERVER_START_REQ( set_thread_info )
1110             {
1111                 req->handle   = wine_server_obj_handle( handle );
1112                 req->token    = wine_server_obj_handle( *phToken );
1113                 req->mask     = SET_THREAD_INFO_TOKEN;
1114                 status = wine_server_call( req );
1115             }
1116             SERVER_END_REQ;
1117         }
1118         return status;
1119     case ThreadBasePriority:
1120         {
1121             const DWORD *pprio = data;
1122             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1123             SERVER_START_REQ( set_thread_info )
1124             {
1125                 req->handle   = wine_server_obj_handle( handle );
1126                 req->priority = *pprio;
1127                 req->mask     = SET_THREAD_INFO_PRIORITY;
1128                 status = wine_server_call( req );
1129             }
1130             SERVER_END_REQ;
1131         }
1132         return status;
1133     case ThreadAffinityMask:
1134         {
1135             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1136             ULONG_PTR req_aff;
1137
1138             if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER;
1139             req_aff = *(const ULONG_PTR *)data;
1140             if ((ULONG)req_aff == ~0u) req_aff = affinity_mask;
1141             else if (req_aff & ~affinity_mask) return STATUS_INVALID_PARAMETER;
1142             else if (!req_aff) return STATUS_INVALID_PARAMETER;
1143             SERVER_START_REQ( set_thread_info )
1144             {
1145                 req->handle   = wine_server_obj_handle( handle );
1146                 req->affinity = req_aff;
1147                 req->mask     = SET_THREAD_INFO_AFFINITY;
1148                 status = wine_server_call( req );
1149             }
1150             SERVER_END_REQ;
1151         }
1152         return status;
1153     case ThreadHideFromDebugger:
1154         /* pretend the call succeeded to satisfy some code protectors */
1155         return STATUS_SUCCESS;
1156
1157     case ThreadBasicInformation:
1158     case ThreadTimes:
1159     case ThreadPriority:
1160     case ThreadDescriptorTableEntry:
1161     case ThreadEnableAlignmentFaultFixup:
1162     case ThreadEventPair_Reusable:
1163     case ThreadQuerySetWin32StartAddress:
1164     case ThreadPerformanceCount:
1165     case ThreadAmILastThread:
1166     case ThreadIdealProcessor:
1167     case ThreadPriorityBoost:
1168     case ThreadSetTlsArrayAddress:
1169     case ThreadIsIoPending:
1170     default:
1171         FIXME( "info class %d not supported yet\n", class );
1172         return STATUS_NOT_IMPLEMENTED;
1173     }
1174 }