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     exceptions_init();
 300
 301     return exe_file;
 302 }
 303
 304
 305 /***********************************************************************
 306  *           terminate_thread
 307  */
 308 void terminate_thread( int status )
 309 {
 310     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 311     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1) _exit( status );
 312
 313     close( ntdll_get_thread_data()->wait_fd[0] );
 314     close( ntdll_get_thread_data()->wait_fd[1] );
 315     close( ntdll_get_thread_data()->reply_fd );
 316     close( ntdll_get_thread_data()->request_fd );
 317     pthread_exit( UIntToPtr(status) );
 318 }
 319
 320
 321 /***********************************************************************
 322  *           exit_thread
 323  */
 324 void exit_thread( int status )
 325 {
 326     static void *prev_teb;
 327     TEB *teb;
 328
 329     if (status)  /* send the exit code to the server (0 is already the default) */
 330     {
 331         SERVER_START_REQ( terminate_thread )
 332         {
 333             req->handle    = wine_server_obj_handle( GetCurrentThread() );
 334             req->exit_code = status;
 335             wine_server_call( req );
 336         }
 337         SERVER_END_REQ;
 338     }
 339
 340     if (interlocked_xchg_add( &nb_threads, -1 ) <= 1)
 341     {
 342         LdrShutdownProcess();
 343         exit( status );
 344     }
 345
 346     LdrShutdownThread();
 347     RtlAcquirePebLock();
 348     RemoveEntryList( &NtCurrentTeb()->TlsLinks );
 349     RtlReleasePebLock();
 350     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots );
 351     RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
 352
 353     pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
 354
 355     if ((teb = interlocked_xchg_ptr( &prev_teb, NtCurrentTeb() )))
 356     {
 357         struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
 358
 359         pthread_join( thread_data->pthread_id, NULL );
 360         signal_free_thread( teb );
 361     }
 362
 363     close( ntdll_get_thread_data()->wait_fd[0] );
 364     close( ntdll_get_thread_data()->wait_fd[1] );
 365     close( ntdll_get_thread_data()->reply_fd );
 366     close( ntdll_get_thread_data()->request_fd );
 367     pthread_exit( UIntToPtr(status) );
 368 }
 369
 370
 371 /***********************************************************************
 372  *           start_thread
 373  *
 374  * Startup routine for a newly created thread.
 375  */
 376 static void start_thread( struct startup_info *info )
 377 {
 378     TEB *teb = info->teb;
 379     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
 380     PRTL_THREAD_START_ROUTINE func = info->entry_point;
 381     void *arg = info->entry_arg;
 382     struct debug_info debug_info;
 383
 384     debug_info.str_pos = debug_info.strings;
 385     debug_info.out_pos = debug_info.output;
 386     thread_data->debug_info = &debug_info;
 387     thread_data->pthread_id = pthread_self();
 388
 389     signal_init_thread( teb );
 390     server_init_thread( func );
 391     pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
 392
 393     RtlAcquirePebLock();
 394     InsertHeadList( &tls_links, &teb->TlsLinks );
 395     RtlReleasePebLock();
 396
 397     MODULE_DllThreadAttach( NULL );
 398
 399     if (TRACE_ON(relay))
 400         DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), func, arg );
 401
 402     call_thread_entry_point( (LPTHREAD_START_ROUTINE)func, arg );
 403 }
 404
 405
 406 /***********************************************************************
 407  *              RtlCreateUserThread   (NTDLL.@)
 408  */
 409 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 410                                      BOOLEAN suspended, PVOID stack_addr,
 411                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 412                                      PRTL_THREAD_START_ROUTINE start, void *param,
 413                                      HANDLE *handle_ptr, CLIENT_ID *id )
 414 {
 415     sigset_t sigset;
 416     pthread_t pthread_id;
 417     pthread_attr_t attr;
 418     struct ntdll_thread_data *thread_data;
 419     struct startup_info *info = NULL;
 420     HANDLE handle = 0;
 421     TEB *teb = NULL;
 422     DWORD tid = 0;
 423     int request_pipe[2];
 424     NTSTATUS status;
 425
 426     if (process != NtCurrentProcess())
 427     {
 428         apc_call_t call;
 429         apc_result_t result;
 430
 431         memset( &call, 0, sizeof(call) );
 432
 433         call.create_thread.type    = APC_CREATE_THREAD;
 434         call.create_thread.func    = wine_server_client_ptr( start );
 435         call.create_thread.arg     = wine_server_client_ptr( param );
 436         call.create_thread.reserve = stack_reserve;
 437         call.create_thread.commit  = stack_commit;
 438         call.create_thread.suspend = suspended;
 439         status = NTDLL_queue_process_apc( process, &call, &result );
 440         if (status != STATUS_SUCCESS) return status;
 441
 442         if (result.create_thread.status == STATUS_SUCCESS)
 443         {
 444             if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid);
 445             if (handle_ptr) *handle_ptr = wine_server_ptr_handle( result.create_thread.handle );
 446             else NtClose( wine_server_ptr_handle( result.create_thread.handle ));
 447         }
 448         return result.create_thread.status;
 449     }
 450
 451     if (server_pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 452     wine_server_send_fd( request_pipe[0] );
 453
 454     SERVER_START_REQ( new_thread )
 455     {
 456         req->access     = THREAD_ALL_ACCESS;
 457         req->attributes = 0;  /* FIXME */
 458         req->suspend    = suspended;
 459         req->request_fd = request_pipe[0];
 460         if (!(status = wine_server_call( req )))
 461         {
 462             handle = wine_server_ptr_handle( reply->handle );
 463             tid = reply->tid;
 464         }
 465         close( request_pipe[0] );
 466     }
 467     SERVER_END_REQ;
 468
 469     if (status)
 470     {
 471         close( request_pipe[1] );
 472         return status;
 473     }
 474
 475     pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
 476
 477     if ((status = signal_alloc_thread( &teb ))) goto error;
 478
 479     teb->Peb = NtCurrentTeb()->Peb;
 480     teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId());
 481     teb->ClientId.UniqueThread  = ULongToHandle(tid);
 482     teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
 483     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
 484
 485     info = (struct startup_info *)(teb + 1);
 486     info->teb         = teb;
 487     info->entry_point = start;
 488     info->entry_arg   = param;
 489
 490     thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
 491     thread_data->request_fd  = request_pipe[1];
 492     thread_data->reply_fd    = -1;
 493     thread_data->wait_fd[0]  = -1;
 494     thread_data->wait_fd[1]  = -1;
 495
 496     if ((status = virtual_alloc_thread_stack( teb, stack_reserve, stack_commit ))) goto error;
 497
 498     pthread_attr_init( &attr );
 499     pthread_attr_setstack( &attr, teb->DeallocationStack,
 500                            (char *)teb->Tib.StackBase - (char *)teb->DeallocationStack );
 501     pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM ); /* force creating a kernel thread */
 502     interlocked_xchg_add( &nb_threads, 1 );
 503     if (pthread_create( &pthread_id, &attr, (void * (*)(void *))start_thread, info ))
 504     {
 505         interlocked_xchg_add( &nb_threads, -1 );
 506         pthread_attr_destroy( &attr );
 507         status = STATUS_NO_MEMORY;
 508         goto error;
 509     }
 510     pthread_attr_destroy( &attr );
 511     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 512
 513     if (id) id->UniqueThread = ULongToHandle(tid);
 514     if (handle_ptr) *handle_ptr = handle;
 515     else NtClose( handle );
 516
 517     return STATUS_SUCCESS;
 518
 519 error:
 520     if (teb) signal_free_thread( teb );
 521     if (handle) NtClose( handle );
 522     pthread_sigmask( SIG_SETMASK, &sigset, NULL );
 523     close( request_pipe[1] );
 524     return status;
 525 }
 526
 527
 528 /******************************************************************************
 529  *              RtlGetNtGlobalFlags   (NTDLL.@)
 530  */
 531 ULONG WINAPI RtlGetNtGlobalFlags(void)
 532 {
 533     if (!peb) return 0;  /* init not done yet */
 534     return peb->NtGlobalFlag;
 535 }
 536
 537
 538 /***********************************************************************
 539  *              NtOpenThread   (NTDLL.@)
 540  *              ZwOpenThread   (NTDLL.@)
 541  */
 542 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 543                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 544 {
 545     NTSTATUS ret;
 546
 547     SERVER_START_REQ( open_thread )
 548     {
 549         req->tid        = HandleToULong(id->UniqueThread);
 550         req->access     = access;
 551         req->attributes = attr ? attr->Attributes : 0;
 552         ret = wine_server_call( req );
 553         *handle = wine_server_ptr_handle( reply->handle );
 554     }
 555     SERVER_END_REQ;
 556     return ret;
 557 }
 558
 559
 560 /******************************************************************************
 561  *              NtSuspendThread   (NTDLL.@)
 562  *              ZwSuspendThread   (NTDLL.@)
 563  */
 564 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 565 {
 566     NTSTATUS ret;
 567
 568     SERVER_START_REQ( suspend_thread )
 569     {
 570         req->handle = wine_server_obj_handle( handle );
 571         if (!(ret = wine_server_call( req ))) *count = reply->count;
 572     }
 573     SERVER_END_REQ;
 574     return ret;
 575 }
 576
 577
 578 /******************************************************************************
 579  *              NtResumeThread   (NTDLL.@)
 580  *              ZwResumeThread   (NTDLL.@)
 581  */
 582 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 583 {
 584     NTSTATUS ret;
 585
 586     SERVER_START_REQ( resume_thread )
 587     {
 588         req->handle = wine_server_obj_handle( handle );
 589         if (!(ret = wine_server_call( req ))) *count = reply->count;
 590     }
 591     SERVER_END_REQ;
 592     return ret;
 593 }
 594
 595
 596 /******************************************************************************
 597  *              NtAlertResumeThread   (NTDLL.@)
 598  *              ZwAlertResumeThread   (NTDLL.@)
 599  */
 600 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
 601 {
 602     FIXME( "stub: should alert thread %p\n", handle );
 603     return NtResumeThread( handle, count );
 604 }
 605
 606
 607 /******************************************************************************
 608  *              NtAlertThread   (NTDLL.@)
 609  *              ZwAlertThread   (NTDLL.@)
 610  */
 611 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
 612 {
 613     FIXME( "stub: %p\n", handle );
 614     return STATUS_NOT_IMPLEMENTED;
 615 }
 616
 617
 618 /******************************************************************************
 619  *              NtTerminateThread  (NTDLL.@)
 620  *              ZwTerminateThread  (NTDLL.@)
 621  */
 622 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 623 {
 624     NTSTATUS ret;
 625     BOOL self;
 626
 627     SERVER_START_REQ( terminate_thread )
 628     {
 629         req->handle    = wine_server_obj_handle( handle );
 630         req->exit_code = exit_code;
 631         ret = wine_server_call( req );
 632         self = !ret && reply->self;
 633     }
 634     SERVER_END_REQ;
 635
 636     if (self) abort_thread( exit_code );
 637     return ret;
 638 }
 639
 640
 641 /******************************************************************************
 642  *              NtQueueApcThread  (NTDLL.@)
 643  */
 644 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 645                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 646 {
 647     NTSTATUS ret;
 648     SERVER_START_REQ( queue_apc )
 649     {
 650         req->handle = wine_server_obj_handle( handle );
 651         if (func)
 652         {
 653             req->call.type         = APC_USER;
 654             req->call.user.func    = wine_server_client_ptr( func );
 655             req->call.user.args[0] = arg1;
 656             req->call.user.args[1] = arg2;
 657             req->call.user.args[2] = arg3;
 658         }
 659         else req->call.type = APC_NONE;  /* wake up only */
 660         ret = wine_server_call( req );
 661     }
 662     SERVER_END_REQ;
 663     return ret;
 664 }
 665
 666
 667 /***********************************************************************
 668  *              NtSetContextThread  (NTDLL.@)
 669  *              ZwSetContextThread  (NTDLL.@)
 670  */
 671 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 672 {
 673     NTSTATUS ret;
 674     DWORD dummy, i;
 675     BOOL self = FALSE;
 676
 677 #ifdef __i386__
 678     /* on i386 debug registers always require a server call */
 679     self = (handle == GetCurrentThread());
 680     if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
 681     {
 682         self = (ntdll_get_thread_data()->dr0 == context->Dr0 &&
 683                 ntdll_get_thread_data()->dr1 == context->Dr1 &&
 684                 ntdll_get_thread_data()->dr2 == context->Dr2 &&
 685                 ntdll_get_thread_data()->dr3 == context->Dr3 &&
 686                 ntdll_get_thread_data()->dr6 == context->Dr6 &&
 687                 ntdll_get_thread_data()->dr7 == context->Dr7);
 688     }
 689 #endif
 690
 691     if (!self)
 692     {
 693         context_t server_context;
 694
 695         context_to_server( &server_context, context );
 696
 697         SERVER_START_REQ( set_thread_context )
 698         {
 699             req->handle  = wine_server_obj_handle( handle );
 700             req->suspend = 0;
 701             wine_server_add_data( req, &server_context, sizeof(server_context) );
 702             ret = wine_server_call( req );
 703             self = reply->self;
 704         }
 705         SERVER_END_REQ;
 706
 707         if (ret == STATUS_PENDING)
 708         {
 709             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 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             }
 731             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 732         }
 733
 734         if (ret) return ret;
 735     }
 736
 737     if (self) set_cpu_context( context );
 738     return STATUS_SUCCESS;
 739 }
 740
 741
 742 /* convert CPU-specific flags to generic server flags */
 743 static inline unsigned int get_server_context_flags( DWORD flags )
 744 {
 745     unsigned int ret = 0;
 746
 747     flags &= 0x3f;  /* mask CPU id flags */
 748     if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
 749     if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
 750 #ifdef CONTEXT_SEGMENTS
 751     if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
 752 #endif
 753 #ifdef CONTEXT_FLOATING_POINT
 754     if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
 755 #endif
 756 #ifdef CONTEXT_DEBUG_REGISTERS
 757     if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
 758 #endif
 759 #ifdef CONTEXT_EXTENDED_REGISTERS
 760     if (flags & CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS;
 761 #endif
 762     return ret;
 763 }
 764
 765 /***********************************************************************
 766  *              NtGetContextThread  (NTDLL.@)
 767  *              ZwGetContextThread  (NTDLL.@)
 768  */
 769 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
 770 {
 771     NTSTATUS ret;
 772     DWORD dummy, i;
 773     DWORD needed_flags = context->ContextFlags;
 774     BOOL self = (handle == GetCurrentThread());
 775
 776 #ifdef __i386__
 777     /* on i386 debug registers always require a server call */
 778     if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
 779 #endif
 780
 781     if (!self)
 782     {
 783         unsigned int server_flags = get_server_context_flags( context->ContextFlags );
 784         context_t server_context;
 785
 786         SERVER_START_REQ( get_thread_context )
 787         {
 788             req->handle  = wine_server_obj_handle( handle );
 789             req->flags   = server_flags;
 790             req->suspend = 0;
 791             wine_server_set_reply( req, &server_context, sizeof(server_context) );
 792             ret = wine_server_call( req );
 793             self = reply->self;
 794         }
 795         SERVER_END_REQ;
 796
 797         if (ret == STATUS_PENDING)
 798         {
 799             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 800             {
 801                 for (i = 0; i < 100; i++)
 802                 {
 803                     SERVER_START_REQ( get_thread_context )
 804                     {
 805                         req->handle  = wine_server_obj_handle( handle );
 806                         req->flags   = server_flags;
 807                         req->suspend = 0;
 808                         wine_server_set_reply( req, &server_context, sizeof(server_context) );
 809                         ret = wine_server_call( req );
 810                     }
 811                     SERVER_END_REQ;
 812                     if (ret == STATUS_PENDING)
 813                     {
 814                         LARGE_INTEGER timeout;
 815                         timeout.QuadPart = -10000;
 816                         NtDelayExecution( FALSE, &timeout );
 817                     }
 818                     else break;
 819                 }
 820                 NtResumeThread( handle, &dummy );
 821             }
 822             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 823         }
 824         if (!ret) ret = context_from_server( context, &server_context );
 825         if (ret) return ret;
 826         needed_flags &= ~context->ContextFlags;
 827     }
 828
 829     if (self)
 830     {
 831         if (needed_flags)
 832         {
 833             CONTEXT ctx;
 834             RtlCaptureContext( &ctx );
 835             copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
 836             context->ContextFlags |= ctx.ContextFlags & needed_flags;
 837         }
 838 #ifdef __i386__
 839         /* update the cached version of the debug registers */
 840         if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
 841         {
 842             ntdll_get_thread_data()->dr0 = context->Dr0;
 843             ntdll_get_thread_data()->dr1 = context->Dr1;
 844             ntdll_get_thread_data()->dr2 = context->Dr2;
 845             ntdll_get_thread_data()->dr3 = context->Dr3;
 846             ntdll_get_thread_data()->dr6 = context->Dr6;
 847             ntdll_get_thread_data()->dr7 = context->Dr7;
 848         }
 849 #endif
 850     }
 851     return STATUS_SUCCESS;
 852 }
 853
 854
 855 /******************************************************************************
 856  *              NtQueryInformationThread  (NTDLL.@)
 857  *              ZwQueryInformationThread  (NTDLL.@)
 858  */
 859 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
 860                                           void *data, ULONG length, ULONG *ret_len )
 861 {
 862     NTSTATUS status;
 863
 864     switch(class)
 865     {
 866     case ThreadBasicInformation:
 867         {
 868             THREAD_BASIC_INFORMATION info;
 869             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 870
 871             SERVER_START_REQ( get_thread_info )
 872             {
 873                 req->handle = wine_server_obj_handle( handle );
 874                 req->tid_in = 0;
 875                 if (!(status = wine_server_call( req )))
 876                 {
 877                     info.ExitStatus             = reply->exit_code;
 878                     info.TebBaseAddress         = wine_server_get_ptr( reply->teb );
 879                     info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
 880                     info.ClientId.UniqueThread  = ULongToHandle(reply->tid);
 881                     info.AffinityMask           = reply->affinity & affinity_mask;
 882                     info.Priority               = reply->priority;
 883                     info.BasePriority           = reply->priority;  /* FIXME */
 884                 }
 885             }
 886             SERVER_END_REQ;
 887             if (status == STATUS_SUCCESS)
 888             {
 889                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
 890                 if (ret_len) *ret_len = min( length, sizeof(info) );
 891             }
 892         }
 893         return status;
 894     case ThreadAffinityMask:
 895         {
 896             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
 897             ULONG_PTR affinity = 0;
 898
 899             SERVER_START_REQ( get_thread_info )
 900             {
 901                 req->handle = wine_server_obj_handle( handle );
 902                 req->tid_in = 0;
 903                 if (!(status = wine_server_call( req )))
 904                     affinity = reply->affinity & affinity_mask;
 905             }
 906             SERVER_END_REQ;
 907             if (status == STATUS_SUCCESS)
 908             {
 909                 if (data) memcpy( data, &affinity, min( length, sizeof(affinity) ));
 910                 if (ret_len) *ret_len = min( length, sizeof(affinity) );
 911             }
 912         }
 913         return status;
 914     case ThreadTimes:
 915         {
 916             KERNEL_USER_TIMES   kusrt;
 917             /* We need to do a server call to get the creation time or exit time */
 918             /* This works on any thread */
 919             SERVER_START_REQ( get_thread_info )
 920             {
 921                 req->handle = wine_server_obj_handle( handle );
 922                 req->tid_in = 0;
 923                 status = wine_server_call( req );
 924                 if (status == STATUS_SUCCESS)
 925                 {
 926                     kusrt.CreateTime.QuadPart = reply->creation_time;
 927                     kusrt.ExitTime.QuadPart = reply->exit_time;
 928                 }
 929             }
 930             SERVER_END_REQ;
 931             if (status == STATUS_SUCCESS)
 932             {
 933                 /* We call times(2) for kernel time or user time */
 934                 /* We can only (portably) do this for the current thread */
 935                 if (handle == GetCurrentThread())
 936                 {
 937                     struct tms time_buf;
 938                     long clocks_per_sec = sysconf(_SC_CLK_TCK);
 939
 940                     times(&time_buf);
 941                     kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
 942                     kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
 943                 }
 944                 else
 945                 {
 946                     static BOOL reported = FALSE;
 947
 948                     kusrt.KernelTime.QuadPart = 0;
 949                     kusrt.UserTime.QuadPart = 0;
 950                     if (reported)
 951                         TRACE("Cannot get kerneltime or usertime of other threads\n");
 952                     else
 953                     {
 954                         FIXME("Cannot get kerneltime or usertime of other threads\n");
 955                         reported = TRUE;
 956                     }
 957                 }
 958                 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
 959                 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
 960             }
 961         }
 962         return status;
 963     case ThreadDescriptorTableEntry:
 964         {
 965 #ifdef __i386__
 966             THREAD_DESCRIPTOR_INFORMATION*      tdi = data;
 967             if (length < sizeof(*tdi))
 968                 status = STATUS_INFO_LENGTH_MISMATCH;
 969             else if (!(tdi->Selector & 4))  /* GDT selector */
 970             {
 971                 unsigned sel = tdi->Selector & ~3;  /* ignore RPL */
 972                 status = STATUS_SUCCESS;
 973                 if (!sel)  /* null selector */
 974                     memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
 975                 else
 976                 {
 977                     tdi->Entry.BaseLow                   = 0;
 978                     tdi->Entry.HighWord.Bits.BaseMid     = 0;
 979                     tdi->Entry.HighWord.Bits.BaseHi      = 0;
 980                     tdi->Entry.LimitLow                  = 0xffff;
 981                     tdi->Entry.HighWord.Bits.LimitHi     = 0xf;
 982                     tdi->Entry.HighWord.Bits.Dpl         = 3;
 983                     tdi->Entry.HighWord.Bits.Sys         = 0;
 984                     tdi->Entry.HighWord.Bits.Pres        = 1;
 985                     tdi->Entry.HighWord.Bits.Granularity = 1;
 986                     tdi->Entry.HighWord.Bits.Default_Big = 1;
 987                     tdi->Entry.HighWord.Bits.Type        = 0x12;
 988                     /* it has to be one of the system GDT selectors */
 989                     if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
 990                     {
 991                         if (sel == (wine_get_cs() & ~3))
 992                             tdi->Entry.HighWord.Bits.Type |= 8;  /* code segment */
 993                         else status = STATUS_ACCESS_DENIED;
 994                     }
 995                 }
 996             }
 997             else
 998             {
 999                 SERVER_START_REQ( get_selector_entry )
1000                 {
1001                     req->handle = wine_server_obj_handle( handle );
1002                     req->entry = tdi->Selector >> 3;
1003                     status = wine_server_call( req );
1004                     if (!status)
1005                     {
1006                         if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1007                             status = STATUS_ACCESS_VIOLATION;
1008                         else
1009                         {
1010                             wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1011                             wine_ldt_set_limit( &tdi->Entry, reply->limit );
1012                             wine_ldt_set_flags( &tdi->Entry, reply->flags );
1013                         }
1014                     }
1015                 }
1016                 SERVER_END_REQ;
1017             }
1018             if (status == STATUS_SUCCESS && ret_len)
1019                 /* yes, that's a bit strange, but it's the way it is */
1020                 *ret_len = sizeof(LDT_ENTRY);
1021 #else
1022             status = STATUS_NOT_IMPLEMENTED;
1023 #endif
1024             return status;
1025         }
1026     case ThreadAmILastThread:
1027         {
1028             SERVER_START_REQ(get_thread_info)
1029             {
1030                 req->handle = wine_server_obj_handle( handle );
1031                 req->tid_in = 0;
1032                 status = wine_server_call( req );
1033                 if (status == STATUS_SUCCESS)
1034                 {
1035                     BOOLEAN last = reply->last;
1036                     if (data) memcpy( data, &last, min( length, sizeof(last) ));
1037                     if (ret_len) *ret_len = min( length, sizeof(last) );
1038                 }
1039             }
1040             SERVER_END_REQ;
1041             return status;
1042         }
1043     case ThreadPriority:
1044     case ThreadBasePriority:
1045     case ThreadImpersonationToken:
1046     case ThreadEnableAlignmentFaultFixup:
1047     case ThreadEventPair_Reusable:
1048     case ThreadQuerySetWin32StartAddress:
1049     case ThreadZeroTlsCell:
1050     case ThreadPerformanceCount:
1051     case ThreadIdealProcessor:
1052     case ThreadPriorityBoost:
1053     case ThreadSetTlsArrayAddress:
1054     case ThreadIsIoPending:
1055     default:
1056         FIXME( "info class %d not supported yet\n", class );
1057         return STATUS_NOT_IMPLEMENTED;
1058     }
1059 }
1060
1061
1062 /******************************************************************************
1063  *              NtSetInformationThread  (NTDLL.@)
1064  *              ZwSetInformationThread  (NTDLL.@)
1065  */
1066 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1067                                         LPCVOID data, ULONG length )
1068 {
1069     NTSTATUS status;
1070     switch(class)
1071     {
1072     case ThreadZeroTlsCell:
1073         if (handle == GetCurrentThread())
1074         {
1075             LIST_ENTRY *entry;
1076             DWORD index;
1077
1078             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1079             index = *(const DWORD *)data;
1080             if (index < TLS_MINIMUM_AVAILABLE)
1081             {
1082                 RtlAcquirePebLock();
1083                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1084                 {
1085                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1086                     teb->TlsSlots[index] = 0;
1087                 }
1088                 RtlReleasePebLock();
1089             }
1090             else
1091             {
1092                 index -= TLS_MINIMUM_AVAILABLE;
1093                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1094                     return STATUS_INVALID_PARAMETER;
1095                 RtlAcquirePebLock();
1096                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1097                 {
1098                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1099                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1100                 }
1101                 RtlReleasePebLock();
1102             }
1103             return STATUS_SUCCESS;
1104         }
1105         FIXME( "ZeroTlsCell not supported on other threads\n" );
1106         return STATUS_NOT_IMPLEMENTED;
1107
1108     case ThreadImpersonationToken:
1109         {
1110             const HANDLE *phToken = data;
1111             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1112             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1113             SERVER_START_REQ( set_thread_info )
1114             {
1115                 req->handle   = wine_server_obj_handle( handle );
1116                 req->token    = wine_server_obj_handle( *phToken );
1117                 req->mask     = SET_THREAD_INFO_TOKEN;
1118                 status = wine_server_call( req );
1119             }
1120             SERVER_END_REQ;
1121         }
1122         return status;
1123     case ThreadBasePriority:
1124         {
1125             const DWORD *pprio = data;
1126             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1127             SERVER_START_REQ( set_thread_info )
1128             {
1129                 req->handle   = wine_server_obj_handle( handle );
1130                 req->priority = *pprio;
1131                 req->mask     = SET_THREAD_INFO_PRIORITY;
1132                 status = wine_server_call( req );
1133             }
1134             SERVER_END_REQ;
1135         }
1136         return status;
1137     case ThreadAffinityMask:
1138         {
1139             const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1140             ULONG_PTR req_aff;
1141
1142             if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER;
1143             req_aff = *(const ULONG_PTR *)data;
1144             if ((ULONG)req_aff == ~0u) req_aff = affinity_mask;
1145             else if (req_aff & ~affinity_mask) return STATUS_INVALID_PARAMETER;
1146             else if (!req_aff) return STATUS_INVALID_PARAMETER;
1147             SERVER_START_REQ( set_thread_info )
1148             {
1149                 req->handle   = wine_server_obj_handle( handle );
1150                 req->affinity = req_aff;
1151                 req->mask     = SET_THREAD_INFO_AFFINITY;
1152                 status = wine_server_call( req );
1153             }
1154             SERVER_END_REQ;
1155         }
1156         return status;
1157     case ThreadHideFromDebugger:
1158         /* pretend the call succeeded to satisfy some code protectors */
1159         return STATUS_SUCCESS;
1160
1161     case ThreadBasicInformation:
1162     case ThreadTimes:
1163     case ThreadPriority:
1164     case ThreadDescriptorTableEntry:
1165     case ThreadEnableAlignmentFaultFixup:
1166     case ThreadEventPair_Reusable:
1167     case ThreadQuerySetWin32StartAddress:
1168     case ThreadPerformanceCount:
1169     case ThreadAmILastThread:
1170     case ThreadIdealProcessor:
1171     case ThreadPriorityBoost:
1172     case ThreadSetTlsArrayAddress:
1173     case ThreadIsIoPending:
1174     default:
1175         FIXME( "info class %d not supported yet\n", class );
1176         return STATUS_NOT_IMPLEMENTED;
1177     }
1178 }