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

   1 /*
   2  * NT threads support
   3  *
   4  * Copyright 1996, 2003 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <sys/types.h>
  25 #ifdef HAVE_SYS_MMAN_H
  26 #include <sys/mman.h>
  27 #endif
  28 #ifdef HAVE_SYS_TIMES_H
  29 #include <sys/times.h>
  30 #endif
  31
  32 #define NONAMELESSUNION
  33 #include "ntstatus.h"
  34 #define WIN32_NO_STATUS
  35 #include "thread.h"
  36 #include "winternl.h"
  37 #include "wine/library.h"
  38 #include "wine/server.h"
  39 #include "wine/pthread.h"
  40 #include "wine/debug.h"
  41 #include "ntdll_misc.h"
  42 #include "wine/exception.h"
  43
  44 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  45
  46 /* info passed to a starting thread */
  47 struct startup_info
  48 {
  49     struct wine_pthread_thread_info pthread_info;
  50     PRTL_THREAD_START_ROUTINE       entry_point;
  51     void                           *entry_arg;
  52 };
  53
  54 static PEB peb;
  55 static PEB_LDR_DATA ldr;
  56 static RTL_USER_PROCESS_PARAMETERS params;  /* default parameters if no parent */
  57 static WCHAR current_dir[MAX_NT_PATH_LENGTH];
  58 static RTL_BITMAP tls_bitmap;
  59 static RTL_BITMAP tls_expansion_bitmap;
  60 static LIST_ENTRY tls_links;
  61 static size_t sigstack_total_size;
  62
  63 struct wine_pthread_functions pthread_functions = { NULL };
  64
  65 /***********************************************************************
  66  *           init_teb
  67  */
  68 static inline NTSTATUS init_teb( TEB *teb )
  69 {
  70     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
  71     struct ntdll_thread_regs *thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
  72
  73     teb->Tib.ExceptionList = (void *)~0UL;
  74     teb->Tib.StackBase     = (void *)~0UL;
  75     teb->Tib.Self          = &teb->Tib;
  76     teb->Peb               = &peb;
  77     teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
  78     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
  79
  80     if (!(thread_regs->fs = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
  81     thread_data->request_fd = -1;
  82     thread_data->reply_fd   = -1;
  83     thread_data->wait_fd[0] = -1;
  84     thread_data->wait_fd[1] = -1;
  85
  86     return STATUS_SUCCESS;
  87 }
  88
  89
  90 /***********************************************************************
  91  *           free_teb
  92  */
  93 static inline void free_teb( TEB *teb )
  94 {
  95     SIZE_T size = 0;
  96     void *addr = teb;
  97     struct ntdll_thread_regs *thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
  98
  99     NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
 100     wine_ldt_free_fs( thread_regs->fs );
 101     munmap( teb, sigstack_total_size );
 102 }
 103
 104
 105 /***********************************************************************
 106  *           fix_unicode_string
 107  *
 108  * Make sure the unicode string doesn't point beyond the end pointer
 109  */
 110 static inline void fix_unicode_string( UNICODE_STRING *str, char *end_ptr )
 111 {
 112     if ((char *)str->Buffer >= end_ptr)
 113     {
 114         str->Length = str->MaximumLength = 0;
 115         str->Buffer = NULL;
 116         return;
 117     }
 118     if ((char *)str->Buffer + str->MaximumLength > end_ptr)
 119     {
 120         str->MaximumLength = (end_ptr - (char *)str->Buffer) & ~(sizeof(WCHAR) - 1);
 121     }
 122     if (str->Length >= str->MaximumLength)
 123     {
 124         if (str->MaximumLength >= sizeof(WCHAR))
 125             str->Length = str->MaximumLength - sizeof(WCHAR);
 126         else
 127             str->Length = str->MaximumLength = 0;
 128     }
 129 }
 130
 131
 132 /***********************************************************************
 133  *           init_user_process_params
 134  *
 135  * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
 136  */
 137 static NTSTATUS init_user_process_params( SIZE_T info_size, HANDLE *exe_file )
 138 {
 139     void *ptr;
 140     SIZE_T env_size;
 141     NTSTATUS status;
 142     RTL_USER_PROCESS_PARAMETERS *params = NULL;
 143
 144     status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &info_size,
 145                                       MEM_COMMIT, PAGE_READWRITE );
 146     if (status != STATUS_SUCCESS) return status;
 147
 148     params->AllocationSize = info_size;
 149     peb.ProcessParameters = params;
 150
 151     SERVER_START_REQ( get_startup_info )
 152     {
 153         wine_server_set_reply( req, params, info_size );
 154         if (!(status = wine_server_call( req )))
 155         {
 156             info_size = wine_server_reply_size( reply );
 157             *exe_file = reply->exe_file;
 158             params->hStdInput  = reply->hstdin;
 159             params->hStdOutput = reply->hstdout;
 160             params->hStdError  = reply->hstderr;
 161         }
 162     }
 163     SERVER_END_REQ;
 164     if (status != STATUS_SUCCESS) return status;
 165
 166     if (params->Size > info_size) params->Size = info_size;
 167
 168     /* make sure the strings are valid */
 169     fix_unicode_string( &params->CurrentDirectory.DosPath, (char *)info_size );
 170     fix_unicode_string( &params->DllPath, (char *)info_size );
 171     fix_unicode_string( &params->ImagePathName, (char *)info_size );
 172     fix_unicode_string( &params->CommandLine, (char *)info_size );
 173     fix_unicode_string( &params->WindowTitle, (char *)info_size );
 174     fix_unicode_string( &params->Desktop, (char *)info_size );
 175     fix_unicode_string( &params->ShellInfo, (char *)info_size );
 176     fix_unicode_string( &params->RuntimeInfo, (char *)info_size );
 177
 178     /* environment needs to be a separate memory block */
 179     env_size = info_size - params->Size;
 180     if (!env_size) env_size = 1;
 181     ptr = NULL;
 182     status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &env_size,
 183                                       MEM_COMMIT, PAGE_READWRITE );
 184     if (status != STATUS_SUCCESS) return status;
 185     memcpy( ptr, (char *)params + params->Size, info_size - params->Size );
 186     params->Environment = ptr;
 187
 188     RtlNormalizeProcessParams( params );
 189     return status;
 190 }
 191
 192
 193 /***********************************************************************
 194  *           thread_init
 195  *
 196  * Setup the initial thread.
 197  *
 198  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 199  */
 200 HANDLE thread_init(void)
 201 {
 202     TEB *teb;
 203     void *addr;
 204     SIZE_T info_size;
 205     HANDLE exe_file = 0;
 206     struct ntdll_thread_data *thread_data;
 207     struct ntdll_thread_regs *thread_regs;
 208     struct wine_pthread_thread_info thread_info;
 209     static struct debug_info debug_info;  /* debug info for initial thread */
 210
 211     peb.NumberOfProcessors = 1;
 212     peb.ProcessParameters  = &params;
 213     peb.TlsBitmap          = &tls_bitmap;
 214     peb.TlsExpansionBitmap = &tls_expansion_bitmap;
 215     peb.LdrData            = &ldr;
 216     params.CurrentDirectory.DosPath.Buffer = current_dir;
 217     params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
 218     params.wShowWindow = 1; /* SW_SHOWNORMAL */
 219     RtlInitializeBitMap( &tls_bitmap, peb.TlsBitmapBits, sizeof(peb.TlsBitmapBits) * 8 );
 220     RtlInitializeBitMap( &tls_expansion_bitmap, peb.TlsExpansionBitmapBits,
 221                          sizeof(peb.TlsExpansionBitmapBits) * 8 );
 222     InitializeListHead( &ldr.InLoadOrderModuleList );
 223     InitializeListHead( &ldr.InMemoryOrderModuleList );
 224     InitializeListHead( &ldr.InInitializationOrderModuleList );
 225     InitializeListHead( &tls_links );
 226
 227     sigstack_total_size = get_signal_stack_total_size();
 228     thread_info.teb_size = sigstack_total_size;
 229     VIRTUAL_alloc_teb( &addr, thread_info.teb_size, TRUE );
 230     teb = addr;
 231     init_teb( teb );
 232     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 233     thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
 234     thread_data->debug_info = &debug_info;
 235     InsertHeadList( &tls_links, &teb->TlsLinks );
 236
 237     thread_info.stack_base = NULL;
 238     thread_info.stack_size = 0;
 239     thread_info.teb_base   = teb;
 240     thread_info.teb_sel    = thread_regs->fs;
 241     wine_pthread_get_functions( &pthread_functions, sizeof(pthread_functions) );
 242     pthread_functions.init_current_teb( &thread_info );
 243     pthread_functions.init_thread( &thread_info );
 244
 245     debug_info.str_pos = debug_info.strings;
 246     debug_info.out_pos = debug_info.output;
 247     debug_init();
 248
 249     /* setup the server connection */
 250     server_init_process();
 251     info_size = server_init_thread( thread_info.pid, thread_info.tid, NULL );
 252
 253     /* create the process heap */
 254     if (!(peb.ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
 255     {
 256         MESSAGE( "wine: failed to create the process heap\n" );
 257         exit(1);
 258     }
 259
 260     /* allocate user parameters */
 261     if (info_size)
 262     {
 263         init_user_process_params( info_size, &exe_file );
 264     }
 265     else
 266     {
 267         /* This is wine specific: we have no parent (we're started from unix)
 268          * so, create a simple console with bare handles to unix stdio
 269          */
 270         wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE,  OBJ_INHERIT, &params.hStdInput );
 271         wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
 272         wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
 273     }
 274     return exe_file;
 275 }
 276
 277 typedef ULONG (WINAPI *PUNHANDLED_EXCEPTION_FILTER)(PEXCEPTION_POINTERS);
 278 static PUNHANDLED_EXCEPTION_FILTER get_unhandled_exception_filter(void)
 279 {
 280     static PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter;
 281     static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
 282     UNICODE_STRING module_name;
 283     ANSI_STRING func_name;
 284     HMODULE kernel32_handle;
 285
 286     if (unhandled_exception_filter) return unhandled_exception_filter;
 287
 288     RtlInitUnicodeString(&module_name, kernel32W);
 289     RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
 290
 291     if (LdrGetDllHandle( 0, 0, &module_name, &kernel32_handle ) == STATUS_SUCCESS)
 292         LdrGetProcedureAddress( kernel32_handle, &func_name, 0,
 293                                 (void **)&unhandled_exception_filter );
 294
 295     return unhandled_exception_filter;
 296 }
 297
 298 /***********************************************************************
 299  *           start_thread
 300  *
 301  * Startup routine for a newly created thread.
 302  */
 303 static void start_thread( struct wine_pthread_thread_info *info )
 304 {
 305     TEB *teb = info->teb_base;
 306     struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 307     struct startup_info *startup_info = (struct startup_info *)info;
 308     PRTL_THREAD_START_ROUTINE func = startup_info->entry_point;
 309     void *arg = startup_info->entry_arg;
 310     struct debug_info debug_info;
 311     SIZE_T size, page_size = getpagesize();
 312
 313     debug_info.str_pos = debug_info.strings;
 314     debug_info.out_pos = debug_info.output;
 315     thread_data->debug_info = &debug_info;
 316
 317     pthread_functions.init_current_teb( info );
 318     SIGNAL_Init();
 319     server_init_thread( info->pid, info->tid, func );
 320     pthread_functions.init_thread( info );
 321
 322     /* allocate a memory view for the stack */
 323     size = info->stack_size;
 324     teb->DeallocationStack = info->stack_base;
 325     NtAllocateVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, 0,
 326                              &size, MEM_SYSTEM, PAGE_READWRITE );
 327     /* limit is lower than base since the stack grows down */
 328     teb->Tib.StackBase  = (char *)info->stack_base + info->stack_size;
 329     teb->Tib.StackLimit = (char *)info->stack_base + page_size;
 330
 331     /* setup the guard page */
 332     size = page_size;
 333     NtProtectVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, PAGE_NOACCESS, NULL );
 334     RtlFreeHeap( GetProcessHeap(), 0, info );
 335
 336     RtlAcquirePebLock();
 337     InsertHeadList( &tls_links, &teb->TlsLinks );
 338     RtlReleasePebLock();
 339
 340     /* NOTE: Windows does not have an exception handler around the call to
 341      * the thread attach. We do for ease of debugging */
 342     if (get_unhandled_exception_filter())
 343     {
 344         __TRY
 345         {
 346             MODULE_DllThreadAttach( NULL );
 347         }
 348         __EXCEPT(get_unhandled_exception_filter())
 349         {
 350             NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
 351         }
 352         __ENDTRY
 353     }
 354     else
 355         MODULE_DllThreadAttach( NULL );
 356
 357     func( arg );
 358 }
 359
 360
 361 /***********************************************************************
 362  *              RtlCreateUserThread   (NTDLL.@)
 363  */
 364 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 365                                      BOOLEAN suspended, PVOID stack_addr,
 366                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 367                                      PRTL_THREAD_START_ROUTINE start, void *param,
 368                                      HANDLE *handle_ptr, CLIENT_ID *id )
 369 {
 370     struct ntdll_thread_data *thread_data;
 371     struct ntdll_thread_regs *thread_regs = NULL;
 372     struct startup_info *info = NULL;
 373     void *addr = NULL;
 374     HANDLE handle = 0;
 375     TEB *teb;
 376     DWORD tid = 0;
 377     int request_pipe[2];
 378     NTSTATUS status;
 379     SIZE_T page_size = getpagesize();
 380
 381     if( ! is_current_process( process ) )
 382     {
 383         ERR("Unsupported on other process\n");
 384         return STATUS_ACCESS_DENIED;
 385     }
 386
 387     if (pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 388     fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
 389     wine_server_send_fd( request_pipe[0] );
 390
 391     SERVER_START_REQ( new_thread )
 392     {
 393         req->access     = THREAD_ALL_ACCESS;
 394         req->attributes = 0;  /* FIXME */
 395         req->suspend    = suspended;
 396         req->request_fd = request_pipe[0];
 397         if (!(status = wine_server_call( req )))
 398         {
 399             handle = reply->handle;
 400             tid = reply->tid;
 401         }
 402         close( request_pipe[0] );
 403     }
 404     SERVER_END_REQ;
 405
 406     if (status) goto error;
 407
 408     if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*info) )))
 409     {
 410         status = STATUS_NO_MEMORY;
 411         goto error;
 412     }
 413
 414     info->pthread_info.teb_size = sigstack_total_size;
 415     if ((status = VIRTUAL_alloc_teb( &addr, info->pthread_info.teb_size, FALSE ))) goto error;
 416     teb = addr;
 417     if ((status = init_teb( teb ))) goto error;
 418
 419     teb->ClientId.UniqueProcess = (HANDLE)GetCurrentProcessId();
 420     teb->ClientId.UniqueThread  = (HANDLE)tid;
 421
 422     thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
 423     thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
 424     thread_data->request_fd  = request_pipe[1];
 425
 426     info->pthread_info.teb_base = teb;
 427     info->pthread_info.teb_sel  = thread_regs->fs;
 428
 429     /* inherit debug registers from parent thread */
 430     thread_regs->dr0 = ntdll_get_thread_regs()->dr0;
 431     thread_regs->dr1 = ntdll_get_thread_regs()->dr1;
 432     thread_regs->dr2 = ntdll_get_thread_regs()->dr2;
 433     thread_regs->dr3 = ntdll_get_thread_regs()->dr3;
 434     thread_regs->dr6 = ntdll_get_thread_regs()->dr6;
 435     thread_regs->dr7 = ntdll_get_thread_regs()->dr7;
 436
 437     if (!stack_reserve || !stack_commit)
 438     {
 439         IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress );
 440         if (!stack_reserve) stack_reserve = nt->OptionalHeader.SizeOfStackReserve;
 441         if (!stack_commit) stack_commit = nt->OptionalHeader.SizeOfStackCommit;
 442     }
 443     if (stack_reserve < stack_commit) stack_reserve = stack_commit;
 444     stack_reserve += page_size;  /* for the guard page */
 445     stack_reserve = (stack_reserve + 0xffff) & ~0xffff;  /* round to 64K boundary */
 446     if (stack_reserve < 1024 * 1024) stack_reserve = 1024 * 1024;  /* Xlib needs a large stack */
 447
 448     info->pthread_info.stack_base = NULL;
 449     info->pthread_info.stack_size = stack_reserve;
 450     info->pthread_info.entry      = start_thread;
 451     info->entry_point             = start;
 452     info->entry_arg               = param;
 453
 454     if (pthread_functions.create_thread( &info->pthread_info ) == -1)
 455     {
 456         status = STATUS_NO_MEMORY;
 457         goto error;
 458     }
 459
 460     if (id) id->UniqueThread = (HANDLE)tid;
 461     if (handle_ptr) *handle_ptr = handle;
 462     else NtClose( handle );
 463
 464     return STATUS_SUCCESS;
 465
 466 error:
 467     if (thread_regs) wine_ldt_free_fs( thread_regs->fs );
 468     if (addr)
 469     {
 470         SIZE_T size = 0;
 471         NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
 472     }
 473     RtlFreeHeap( GetProcessHeap(), 0, info );
 474     if (handle) NtClose( handle );
 475     close( request_pipe[1] );
 476     return status;
 477 }
 478
 479
 480 /***********************************************************************
 481  *           RtlExitUserThread  (NTDLL.@)
 482  */
 483 void WINAPI RtlExitUserThread( ULONG status )
 484 {
 485     LdrShutdownThread();
 486     server_exit_thread( status );
 487 }
 488
 489
 490 /***********************************************************************
 491  *              NtOpenThread   (NTDLL.@)
 492  *              ZwOpenThread   (NTDLL.@)
 493  */
 494 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 495                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 496 {
 497     NTSTATUS ret;
 498
 499     SERVER_START_REQ( open_thread )
 500     {
 501         req->tid        = (thread_id_t)id->UniqueThread;
 502         req->access     = access;
 503         req->attributes = attr ? attr->Attributes : 0;
 504         ret = wine_server_call( req );
 505         *handle = reply->handle;
 506     }
 507     SERVER_END_REQ;
 508     return ret;
 509 }
 510
 511
 512 /******************************************************************************
 513  *              NtSuspendThread   (NTDLL.@)
 514  *              ZwSuspendThread   (NTDLL.@)
 515  */
 516 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 517 {
 518     NTSTATUS ret;
 519
 520     SERVER_START_REQ( suspend_thread )
 521     {
 522         req->handle = handle;
 523         if (!(ret = wine_server_call( req ))) *count = reply->count;
 524     }
 525     SERVER_END_REQ;
 526     return ret;
 527 }
 528
 529
 530 /******************************************************************************
 531  *              NtResumeThread   (NTDLL.@)
 532  *              ZwResumeThread   (NTDLL.@)
 533  */
 534 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 535 {
 536     NTSTATUS ret;
 537
 538     SERVER_START_REQ( resume_thread )
 539     {
 540         req->handle = handle;
 541         if (!(ret = wine_server_call( req ))) *count = reply->count;
 542     }
 543     SERVER_END_REQ;
 544     return ret;
 545 }
 546
 547
 548 /******************************************************************************
 549  *              NtAlertResumeThread   (NTDLL.@)
 550  *              ZwAlertResumeThread   (NTDLL.@)
 551  */
 552 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
 553 {
 554     FIXME( "stub: should alert thread %p\n", handle );
 555     return NtResumeThread( handle, count );
 556 }
 557
 558
 559 /******************************************************************************
 560  *              NtAlertThread   (NTDLL.@)
 561  *              ZwAlertThread   (NTDLL.@)
 562  */
 563 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
 564 {
 565     FIXME( "stub: %p\n", handle );
 566     return STATUS_NOT_IMPLEMENTED;
 567 }
 568
 569
 570 /******************************************************************************
 571  *              NtTerminateThread  (NTDLL.@)
 572  *              ZwTerminateThread  (NTDLL.@)
 573  */
 574 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 575 {
 576     NTSTATUS ret;
 577     BOOL self, last;
 578
 579     SERVER_START_REQ( terminate_thread )
 580     {
 581         req->handle    = handle;
 582         req->exit_code = exit_code;
 583         ret = wine_server_call( req );
 584         self = !ret && reply->self;
 585         last = reply->last;
 586     }
 587     SERVER_END_REQ;
 588
 589     if (self)
 590     {
 591         if (last) exit( exit_code );
 592         else server_abort_thread( exit_code );
 593     }
 594     return ret;
 595 }
 596
 597
 598 /******************************************************************************
 599  *              NtQueueApcThread  (NTDLL.@)
 600  */
 601 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 602                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 603 {
 604     NTSTATUS ret;
 605     SERVER_START_REQ( queue_apc )
 606     {
 607         req->handle = handle;
 608         req->user   = 1;
 609         req->func   = func;
 610         req->arg1   = (void *)arg1;
 611         req->arg2   = (void *)arg2;
 612         req->arg3   = (void *)arg3;
 613         ret = wine_server_call( req );
 614     }
 615     SERVER_END_REQ;
 616     return ret;
 617 }
 618
 619
 620 /***********************************************************************
 621  *              NtSetContextThread  (NTDLL.@)
 622  *              ZwSetContextThread  (NTDLL.@)
 623  */
 624 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 625 {
 626     NTSTATUS ret;
 627     DWORD dummy, i;
 628     BOOL self = FALSE;
 629
 630 #ifdef __i386__
 631     /* on i386 debug registers always require a server call */
 632     self = (handle == GetCurrentThread());
 633     if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
 634     {
 635         struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 636         self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 &&
 637                 regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 &&
 638                 regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7);
 639     }
 640 #endif
 641
 642     if (!self)
 643     {
 644         SERVER_START_REQ( set_thread_context )
 645         {
 646             req->handle  = handle;
 647             req->flags   = context->ContextFlags;
 648             req->suspend = 0;
 649             wine_server_add_data( req, context, sizeof(*context) );
 650             ret = wine_server_call( req );
 651             self = reply->self;
 652         }
 653         SERVER_END_REQ;
 654
 655         if (ret == STATUS_PENDING)
 656         {
 657             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 658             {
 659                 for (i = 0; i < 100; i++)
 660                 {
 661                     SERVER_START_REQ( set_thread_context )
 662                     {
 663                         req->handle  = handle;
 664                         req->flags   = context->ContextFlags;
 665                         req->suspend = 0;
 666                         wine_server_add_data( req, context, sizeof(*context) );
 667                         ret = wine_server_call( req );
 668                     }
 669                     SERVER_END_REQ;
 670                     if (ret != STATUS_PENDING) break;
 671                     NtYieldExecution();
 672                 }
 673                 NtResumeThread( handle, &dummy );
 674             }
 675             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 676         }
 677
 678         if (ret) return ret;
 679     }
 680
 681     if (self) set_cpu_context( context );
 682     return STATUS_SUCCESS;
 683 }
 684
 685
 686 /* copy a context structure according to the flags */
 687 static inline void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
 688 {
 689 #ifdef __i386__
 690     flags &= ~CONTEXT_i386;  /* get rid of CPU id */
 691     if (flags & CONTEXT_INTEGER)
 692     {
 693         to->Eax = from->Eax;
 694         to->Ebx = from->Ebx;
 695         to->Ecx = from->Ecx;
 696         to->Edx = from->Edx;
 697         to->Esi = from->Esi;
 698         to->Edi = from->Edi;
 699     }
 700     if (flags & CONTEXT_CONTROL)
 701     {
 702         to->Ebp    = from->Ebp;
 703         to->Esp    = from->Esp;
 704         to->Eip    = from->Eip;
 705         to->SegCs  = from->SegCs;
 706         to->SegSs  = from->SegSs;
 707         to->EFlags = from->EFlags;
 708     }
 709     if (flags & CONTEXT_SEGMENTS)
 710     {
 711         to->SegDs = from->SegDs;
 712         to->SegEs = from->SegEs;
 713         to->SegFs = from->SegFs;
 714         to->SegGs = from->SegGs;
 715     }
 716     if (flags & CONTEXT_DEBUG_REGISTERS)
 717     {
 718         to->Dr0 = from->Dr0;
 719         to->Dr1 = from->Dr1;
 720         to->Dr2 = from->Dr2;
 721         to->Dr3 = from->Dr3;
 722         to->Dr6 = from->Dr6;
 723         to->Dr7 = from->Dr7;
 724     }
 725     if (flags & CONTEXT_FLOATING_POINT)
 726     {
 727         to->FloatSave = from->FloatSave;
 728     }
 729 #elif defined(__x86_64__)
 730     flags &= ~CONTEXT_AMD64;  /* get rid of CPU id */
 731     if (flags & CONTEXT_CONTROL)
 732     {
 733         to->Rbp    = from->Rbp;
 734         to->Rip    = from->Rip;
 735         to->Rsp    = from->Rsp;
 736         to->SegCs  = from->SegCs;
 737         to->SegSs  = from->SegSs;
 738         to->EFlags = from->EFlags;
 739         to->MxCsr  = from->MxCsr;
 740     }
 741     if (flags & CONTEXT_INTEGER)
 742     {
 743         to->Rax = from->Rax;
 744         to->Rcx = from->Rcx;
 745         to->Rdx = from->Rdx;
 746         to->Rbx = from->Rbx;
 747         to->Rsi = from->Rsi;
 748         to->Rdi = from->Rdi;
 749         to->R8  = from->R8;
 750         to->R9  = from->R9;
 751         to->R10 = from->R10;
 752         to->R11 = from->R11;
 753         to->R12 = from->R12;
 754         to->R13 = from->R13;
 755         to->R14 = from->R14;
 756         to->R15 = from->R15;
 757     }
 758     if (flags & CONTEXT_SEGMENTS)
 759     {
 760         to->SegDs = from->SegDs;
 761         to->SegEs = from->SegEs;
 762         to->SegFs = from->SegFs;
 763         to->SegGs = from->SegGs;
 764     }
 765     if (flags & CONTEXT_FLOATING_POINT)
 766     {
 767         to->u.FltSave = from->u.FltSave;
 768     }
 769     if (flags & CONTEXT_DEBUG_REGISTERS)
 770     {
 771         to->Dr0 = from->Dr0;
 772         to->Dr1 = from->Dr1;
 773         to->Dr2 = from->Dr2;
 774         to->Dr3 = from->Dr3;
 775         to->Dr6 = from->Dr6;
 776         to->Dr7 = from->Dr7;
 777     }
 778 #elif defined(__sparc__)
 779     flags &= ~CONTEXT_SPARC;  /* get rid of CPU id */
 780     if (flags & CONTEXT_CONTROL)
 781     {
 782         to->psr = from->psr;
 783         to->pc  = from->pc;
 784         to->npc = from->npc;
 785         to->y   = from->y;
 786         to->wim = from->wim;
 787         to->tbr = from->tbr;
 788     }
 789     if (flags & CONTEXT_INTEGER)
 790     {
 791         to->g0 = from->g0;
 792         to->g1 = from->g1;
 793         to->g2 = from->g2;
 794         to->g3 = from->g3;
 795         to->g4 = from->g4;
 796         to->g5 = from->g5;
 797         to->g6 = from->g6;
 798         to->g7 = from->g7;
 799         to->o0 = from->o0;
 800         to->o1 = from->o1;
 801         to->o2 = from->o2;
 802         to->o3 = from->o3;
 803         to->o4 = from->o4;
 804         to->o5 = from->o5;
 805         to->o6 = from->o6;
 806         to->o7 = from->o7;
 807         to->l0 = from->l0;
 808         to->l1 = from->l1;
 809         to->l2 = from->l2;
 810         to->l3 = from->l3;
 811         to->l4 = from->l4;
 812         to->l5 = from->l5;
 813         to->l6 = from->l6;
 814         to->l7 = from->l7;
 815         to->i0 = from->i0;
 816         to->i1 = from->i1;
 817         to->i2 = from->i2;
 818         to->i3 = from->i3;
 819         to->i4 = from->i4;
 820         to->i5 = from->i5;
 821         to->i6 = from->i6;
 822         to->i7 = from->i7;
 823     }
 824     if (flags & CONTEXT_FLOATING_POINT)
 825     {
 826         /* FIXME */
 827     }
 828 #elif defined(__powerpc__)
 829     /* Has no CPU id */
 830     if (flags & CONTEXT_CONTROL)
 831     {
 832         to->Msr = from->Msr;
 833         to->Ctr = from->Ctr;
 834         to->Iar = from->Iar;
 835     }
 836     if (flags & CONTEXT_INTEGER)
 837     {
 838         to->Gpr0  = from->Gpr0;
 839         to->Gpr1  = from->Gpr1;
 840         to->Gpr2  = from->Gpr2;
 841         to->Gpr3  = from->Gpr3;
 842         to->Gpr4  = from->Gpr4;
 843         to->Gpr5  = from->Gpr5;
 844         to->Gpr6  = from->Gpr6;
 845         to->Gpr7  = from->Gpr7;
 846         to->Gpr8  = from->Gpr8;
 847         to->Gpr9  = from->Gpr9;
 848         to->Gpr10 = from->Gpr10;
 849         to->Gpr11 = from->Gpr11;
 850         to->Gpr12 = from->Gpr12;
 851         to->Gpr13 = from->Gpr13;
 852         to->Gpr14 = from->Gpr14;
 853         to->Gpr15 = from->Gpr15;
 854         to->Gpr16 = from->Gpr16;
 855         to->Gpr17 = from->Gpr17;
 856         to->Gpr18 = from->Gpr18;
 857         to->Gpr19 = from->Gpr19;
 858         to->Gpr20 = from->Gpr20;
 859         to->Gpr21 = from->Gpr21;
 860         to->Gpr22 = from->Gpr22;
 861         to->Gpr23 = from->Gpr23;
 862         to->Gpr24 = from->Gpr24;
 863         to->Gpr25 = from->Gpr25;
 864         to->Gpr26 = from->Gpr26;
 865         to->Gpr27 = from->Gpr27;
 866         to->Gpr28 = from->Gpr28;
 867         to->Gpr29 = from->Gpr29;
 868         to->Gpr30 = from->Gpr30;
 869         to->Gpr31 = from->Gpr31;
 870         to->Xer   = from->Xer;
 871         to->Cr    = from->Cr;
 872     }
 873     if (flags & CONTEXT_FLOATING_POINT)
 874     {
 875         to->Fpr0  = from->Fpr0;
 876         to->Fpr1  = from->Fpr1;
 877         to->Fpr2  = from->Fpr2;
 878         to->Fpr3  = from->Fpr3;
 879         to->Fpr4  = from->Fpr4;
 880         to->Fpr5  = from->Fpr5;
 881         to->Fpr6  = from->Fpr6;
 882         to->Fpr7  = from->Fpr7;
 883         to->Fpr8  = from->Fpr8;
 884         to->Fpr9  = from->Fpr9;
 885         to->Fpr10 = from->Fpr10;
 886         to->Fpr11 = from->Fpr11;
 887         to->Fpr12 = from->Fpr12;
 888         to->Fpr13 = from->Fpr13;
 889         to->Fpr14 = from->Fpr14;
 890         to->Fpr15 = from->Fpr15;
 891         to->Fpr16 = from->Fpr16;
 892         to->Fpr17 = from->Fpr17;
 893         to->Fpr18 = from->Fpr18;
 894         to->Fpr19 = from->Fpr19;
 895         to->Fpr20 = from->Fpr20;
 896         to->Fpr21 = from->Fpr21;
 897         to->Fpr22 = from->Fpr22;
 898         to->Fpr23 = from->Fpr23;
 899         to->Fpr24 = from->Fpr24;
 900         to->Fpr25 = from->Fpr25;
 901         to->Fpr26 = from->Fpr26;
 902         to->Fpr27 = from->Fpr27;
 903         to->Fpr28 = from->Fpr28;
 904         to->Fpr29 = from->Fpr29;
 905         to->Fpr30 = from->Fpr30;
 906         to->Fpr31 = from->Fpr31;
 907         to->Fpscr = from->Fpscr;
 908     }
 909 #else
 910 #error You must implement context copying for your CPU
 911 #endif
 912 }
 913
 914
 915 /***********************************************************************
 916  *              NtGetContextThread  (NTDLL.@)
 917  *              ZwGetContextThread  (NTDLL.@)
 918  */
 919 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
 920 {
 921     NTSTATUS ret;
 922     CONTEXT ctx;
 923     DWORD dummy, i;
 924     DWORD needed_flags = context->ContextFlags;
 925     BOOL self = (handle == GetCurrentThread());
 926
 927 #ifdef __i386__
 928     /* on i386 debug registers always require a server call */
 929     if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
 930 #endif
 931
 932     if (!self)
 933     {
 934         SERVER_START_REQ( get_thread_context )
 935         {
 936             req->handle  = handle;
 937             req->flags   = context->ContextFlags;
 938             req->suspend = 0;
 939             wine_server_set_reply( req, &ctx, sizeof(ctx) );
 940             ret = wine_server_call( req );
 941             self = reply->self;
 942         }
 943         SERVER_END_REQ;
 944
 945         if (ret == STATUS_PENDING)
 946         {
 947             if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
 948             {
 949                 for (i = 0; i < 100; i++)
 950                 {
 951                     SERVER_START_REQ( get_thread_context )
 952                     {
 953                         req->handle  = handle;
 954                         req->flags   = context->ContextFlags;
 955                         req->suspend = 0;
 956                         wine_server_set_reply( req, &ctx, sizeof(ctx) );
 957                         ret = wine_server_call( req );
 958                     }
 959                     SERVER_END_REQ;
 960                     if (ret != STATUS_PENDING) break;
 961                     NtYieldExecution();
 962                 }
 963                 NtResumeThread( handle, &dummy );
 964             }
 965             if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
 966         }
 967         if (ret) return ret;
 968         copy_context( context, &ctx, context->ContextFlags & ctx.ContextFlags );
 969         needed_flags &= ~ctx.ContextFlags;
 970     }
 971
 972     if (self)
 973     {
 974         if (needed_flags)
 975         {
 976             get_cpu_context( &ctx );
 977             copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
 978         }
 979 #ifdef __i386__
 980         /* update the cached version of the debug registers */
 981         if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
 982         {
 983             struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
 984             regs->dr0 = context->Dr0;
 985             regs->dr1 = context->Dr1;
 986             regs->dr2 = context->Dr2;
 987             regs->dr3 = context->Dr3;
 988             regs->dr6 = context->Dr6;
 989             regs->dr7 = context->Dr7;
 990         }
 991 #endif
 992     }
 993     return STATUS_SUCCESS;
 994 }
 995
 996
 997 /******************************************************************************
 998  *              NtQueryInformationThread  (NTDLL.@)
 999  *              ZwQueryInformationThread  (NTDLL.@)
1000  */
1001 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
1002                                           void *data, ULONG length, ULONG *ret_len )
1003 {
1004     NTSTATUS status;
1005
1006     switch(class)
1007     {
1008     case ThreadBasicInformation:
1009         {
1010             THREAD_BASIC_INFORMATION info;
1011
1012             SERVER_START_REQ( get_thread_info )
1013             {
1014                 req->handle = handle;
1015                 req->tid_in = 0;
1016                 if (!(status = wine_server_call( req )))
1017                 {
1018                     info.ExitStatus             = reply->exit_code;
1019                     info.TebBaseAddress         = reply->teb;
1020                     info.ClientId.UniqueProcess = (HANDLE)reply->pid;
1021                     info.ClientId.UniqueThread  = (HANDLE)reply->tid;
1022                     info.AffinityMask           = reply->affinity;
1023                     info.Priority               = reply->priority;
1024                     info.BasePriority           = reply->priority;  /* FIXME */
1025                 }
1026             }
1027             SERVER_END_REQ;
1028             if (status == STATUS_SUCCESS)
1029             {
1030                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
1031                 if (ret_len) *ret_len = min( length, sizeof(info) );
1032             }
1033         }
1034         return status;
1035     case ThreadTimes:
1036         {
1037             KERNEL_USER_TIMES   kusrt;
1038             /* We need to do a server call to get the creation time or exit time */
1039             /* This works on any thread */
1040             SERVER_START_REQ( get_thread_info )
1041             {
1042                 req->handle = handle;
1043                 req->tid_in = 0;
1044                 status = wine_server_call( req );
1045                 if (status == STATUS_SUCCESS)
1046                 {
1047                     RtlSecondsSince1970ToTime( reply->creation_time, &kusrt.CreateTime );
1048                     RtlSecondsSince1970ToTime( reply->exit_time, &kusrt.ExitTime );
1049                 }
1050             }
1051             SERVER_END_REQ;
1052             if (status == STATUS_SUCCESS)
1053             {
1054                 /* We call times(2) for kernel time or user time */
1055                 /* We can only (portably) do this for the current thread */
1056                 if (handle == GetCurrentThread())
1057                 {
1058                     struct tms time_buf;
1059                     long clocks_per_sec = sysconf(_SC_CLK_TCK);
1060
1061                     times(&time_buf);
1062                     kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
1063                     kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
1064                 }
1065                 else
1066                 {
1067                     kusrt.KernelTime.QuadPart = 0;
1068                     kusrt.UserTime.QuadPart = 0;
1069                     FIXME("Cannot get kerneltime or usertime of other threads\n");
1070                 }
1071                 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
1072                 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
1073             }
1074         }
1075         return status;
1076     case ThreadPriority:
1077     case ThreadBasePriority:
1078     case ThreadAffinityMask:
1079     case ThreadImpersonationToken:
1080     case ThreadDescriptorTableEntry:
1081     case ThreadEnableAlignmentFaultFixup:
1082     case ThreadEventPair_Reusable:
1083     case ThreadQuerySetWin32StartAddress:
1084     case ThreadZeroTlsCell:
1085     case ThreadPerformanceCount:
1086     case ThreadAmILastThread:
1087     case ThreadIdealProcessor:
1088     case ThreadPriorityBoost:
1089     case ThreadSetTlsArrayAddress:
1090     case ThreadIsIoPending:
1091     default:
1092         FIXME( "info class %d not supported yet\n", class );
1093         return STATUS_NOT_IMPLEMENTED;
1094     }
1095 }
1096
1097
1098 /******************************************************************************
1099  *              NtSetInformationThread  (NTDLL.@)
1100  *              ZwSetInformationThread  (NTDLL.@)
1101  */
1102 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1103                                         LPCVOID data, ULONG length )
1104 {
1105     NTSTATUS status;
1106     switch(class)
1107     {
1108     case ThreadZeroTlsCell:
1109         if (handle == GetCurrentThread())
1110         {
1111             LIST_ENTRY *entry;
1112             DWORD index;
1113
1114             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1115             index = *(const DWORD *)data;
1116             if (index < TLS_MINIMUM_AVAILABLE)
1117             {
1118                 RtlAcquirePebLock();
1119                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1120                 {
1121                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1122                     teb->TlsSlots[index] = 0;
1123                 }
1124                 RtlReleasePebLock();
1125             }
1126             else
1127             {
1128                 index -= TLS_MINIMUM_AVAILABLE;
1129                 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1130                     return STATUS_INVALID_PARAMETER;
1131                 RtlAcquirePebLock();
1132                 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1133                 {
1134                     TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1135                     if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1136                 }
1137                 RtlReleasePebLock();
1138             }
1139             return STATUS_SUCCESS;
1140         }
1141         FIXME( "ZeroTlsCell not supported on other threads\n" );
1142         return STATUS_NOT_IMPLEMENTED;
1143
1144     case ThreadImpersonationToken:
1145         {
1146             const HANDLE *phToken = data;
1147             if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1148             TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1149             SERVER_START_REQ( set_thread_info )
1150             {
1151                 req->handle   = handle;
1152                 req->token    = *phToken;
1153                 req->mask     = SET_THREAD_INFO_TOKEN;
1154                 status = wine_server_call( req );
1155             }
1156             SERVER_END_REQ;
1157         }
1158         return status;
1159     case ThreadBasePriority:
1160         {
1161             const DWORD *pprio = data;
1162             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1163             SERVER_START_REQ( set_thread_info )
1164             {
1165                 req->handle   = handle;
1166                 req->priority = *pprio;
1167                 req->mask     = SET_THREAD_INFO_PRIORITY;
1168                 status = wine_server_call( req );
1169             }
1170             SERVER_END_REQ;
1171         }
1172         return status;
1173     case ThreadAffinityMask:
1174         {
1175             const DWORD *paff = data;
1176             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1177             SERVER_START_REQ( set_thread_info )
1178             {
1179                 req->handle   = handle;
1180                 req->affinity = *paff;
1181                 req->mask     = SET_THREAD_INFO_AFFINITY;
1182                 status = wine_server_call( req );
1183             }
1184             SERVER_END_REQ;
1185         }
1186         return status;
1187     case ThreadBasicInformation:
1188     case ThreadTimes:
1189     case ThreadPriority:
1190     case ThreadDescriptorTableEntry:
1191     case ThreadEnableAlignmentFaultFixup:
1192     case ThreadEventPair_Reusable:
1193     case ThreadQuerySetWin32StartAddress:
1194     case ThreadPerformanceCount:
1195     case ThreadAmILastThread:
1196     case ThreadIdealProcessor:
1197     case ThreadPriorityBoost:
1198     case ThreadSetTlsArrayAddress:
1199     case ThreadIsIoPending:
1200     default:
1201         FIXME( "info class %d not supported yet\n", class );
1202         return STATUS_NOT_IMPLEMENTED;
1203     }
1204 }
1205
1206
1207 /**********************************************************************
1208  *           NtCurrentTeb   (NTDLL.@)
1209  */
1210 #if defined(__i386__) && defined(__GNUC__)
1211
1212 __ASM_GLOBAL_FUNC( NtCurrentTeb, ".byte 0x64\n\tmovl 0x18,%eax\n\tret" );
1213
1214 #elif defined(__i386__) && defined(_MSC_VER)
1215
1216 /* Nothing needs to be done. MS C "magically" exports the inline version from winnt.h */
1217
1218 #else
1219
1220 /**********************************************************************/
1221
1222 TEB * WINAPI NtCurrentTeb(void)
1223 {
1224     return pthread_functions.get_current_teb();
1225 }
1226
1227 #endif  /* __i386__ */