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
  29 #include "ntstatus.h"
  30 #include "thread.h"
  31 #include "winternl.h"
  32 #include "wine/library.h"
  33 #include "wine/server.h"
  34 #include "wine/pthread.h"
  35 #include "wine/debug.h"
  36 #include "ntdll_misc.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(thread);
  39
  40 /* info passed to a starting thread */
  41 struct startup_info
  42 {
  43     struct wine_pthread_thread_info pthread_info;
  44     PRTL_THREAD_START_ROUTINE       entry_point;
  45     void                           *entry_arg;
  46 };
  47
  48 static PEB peb;
  49 static PEB_LDR_DATA ldr;
  50 static RTL_USER_PROCESS_PARAMETERS params;  /* default parameters if no parent */
  51 static RTL_BITMAP tls_bitmap;
  52 static LIST_ENTRY tls_links;
  53
  54
  55 /***********************************************************************
  56  *           alloc_teb
  57  */
  58 static TEB *alloc_teb( ULONG *size )
  59 {
  60     TEB *teb;
  61
  62     *size = SIGNAL_STACK_SIZE + sizeof(TEB);
  63     teb = wine_anon_mmap( NULL, *size, PROT_READ | PROT_WRITE | PROT_EXEC, 0 );
  64     if (teb == (TEB *)-1) return NULL;
  65     if (!(teb->teb_sel = wine_ldt_alloc_fs()))
  66     {
  67         munmap( teb, *size );
  68         return NULL;
  69     }
  70     teb->Tib.ExceptionList = (void *)~0UL;
  71     teb->Tib.StackBase     = (void *)~0UL;
  72     teb->Tib.Self          = &teb->Tib;
  73     teb->Peb               = &peb;
  74     teb->StaticUnicodeString.Buffer        = teb->StaticUnicodeBuffer;
  75     teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
  76     return teb;
  77 }
  78
  79
  80 /***********************************************************************
  81  *           free_teb
  82  */
  83 static inline void free_teb( TEB *teb )
  84 {
  85     ULONG size = 0;
  86     void *addr = teb;
  87
  88     NtFreeVirtualMemory( GetCurrentProcess(), &addr, &size, MEM_RELEASE );
  89     wine_ldt_free_fs( teb->teb_sel );
  90     munmap( teb, SIGNAL_STACK_SIZE + sizeof(TEB) );
  91 }
  92
  93
  94 /***********************************************************************
  95  *           thread_init
  96  *
  97  * Setup the initial thread.
  98  *
  99  * NOTES: The first allocated TEB on NT is at 0x7ffde000.
 100  */
 101 void thread_init(void)
 102 {
 103     TEB *teb;
 104     void *addr;
 105     ULONG size;
 106     struct wine_pthread_thread_info thread_info;
 107     static struct debug_info debug_info;  /* debug info for initial thread */
 108
 109     debug_info.str_pos = debug_info.strings;
 110     debug_info.out_pos = debug_info.output;
 111
 112     peb.ProcessParameters = &params;
 113     peb.TlsBitmap         = &tls_bitmap;
 114     peb.LdrData           = &ldr;
 115     RtlInitializeBitMap( &tls_bitmap, (BYTE *)peb.TlsBitmapBits, sizeof(peb.TlsBitmapBits) * 8 );
 116     InitializeListHead( &ldr.InLoadOrderModuleList );
 117     InitializeListHead( &ldr.InMemoryOrderModuleList );
 118     InitializeListHead( &ldr.InInitializationOrderModuleList );
 119     InitializeListHead( &tls_links );
 120
 121     teb = alloc_teb( &size );
 122     teb->tibflags      = TEBF_WIN32;
 123     teb->request_fd    = -1;
 124     teb->reply_fd      = -1;
 125     teb->wait_fd[0]    = -1;
 126     teb->wait_fd[1]    = -1;
 127     teb->debug_info    = &debug_info;
 128     InsertHeadList( &tls_links, &teb->TlsLinks );
 129
 130     thread_info.stack_base = NULL;
 131     thread_info.stack_size = 0;
 132     thread_info.teb_base   = teb;
 133     thread_info.teb_size   = size;
 134     thread_info.teb_sel    = teb->teb_sel;
 135     wine_pthread_init_thread( &thread_info );
 136
 137     /* setup the server connection */
 138     server_init_process();
 139     server_init_thread( thread_info.pid, thread_info.tid, NULL );
 140
 141     /* create a memory view for the TEB */
 142     NtAllocateVirtualMemory( GetCurrentProcess(), &addr, teb, &size,
 143                              MEM_SYSTEM, PAGE_EXECUTE_READWRITE );
 144
 145     /* create the process heap */
 146     if (!(peb.ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
 147     {
 148         MESSAGE( "wine: failed to create the process heap\n" );
 149         exit(1);
 150     }
 151 }
 152
 153
 154 /***********************************************************************
 155  *           start_thread
 156  *
 157  * Startup routine for a newly created thread.
 158  */
 159 static void start_thread( struct wine_pthread_thread_info *info )
 160 {
 161     TEB *teb = info->teb_base;
 162     struct startup_info *startup_info = (struct startup_info *)info;
 163     PRTL_THREAD_START_ROUTINE func = startup_info->entry_point;
 164     void *arg = startup_info->entry_arg;
 165     struct debug_info debug_info;
 166     ULONG size;
 167
 168     debug_info.str_pos = debug_info.strings;
 169     debug_info.out_pos = debug_info.output;
 170     teb->debug_info = &debug_info;
 171
 172     wine_pthread_init_thread( info );
 173     SIGNAL_Init();
 174     server_init_thread( info->pid, info->tid, func );
 175
 176     /* allocate a memory view for the stack */
 177     size = info->stack_size;
 178     NtAllocateVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, info->stack_base,
 179                              &size, MEM_SYSTEM, PAGE_EXECUTE_READWRITE );
 180     /* limit is lower than base since the stack grows down */
 181     teb->Tib.StackBase  = (char *)info->stack_base + info->stack_size;
 182     teb->Tib.StackLimit = info->stack_base;
 183
 184     /* setup the guard page */
 185     size = 1;
 186     NtProtectVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size,
 187                             PAGE_EXECUTE_READWRITE | PAGE_GUARD, NULL );
 188     RtlFreeHeap( GetProcessHeap(), 0, info );
 189
 190     RtlAcquirePebLock();
 191     InsertHeadList( &tls_links, &teb->TlsLinks );
 192     RtlReleasePebLock();
 193
 194     func( arg );
 195 }
 196
 197
 198 /***********************************************************************
 199  *              RtlCreateUserThread   (NTDLL.@)
 200  */
 201 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
 202                                      BOOLEAN suspended, PVOID stack_addr,
 203                                      SIZE_T stack_reserve, SIZE_T stack_commit,
 204                                      PRTL_THREAD_START_ROUTINE start, void *param,
 205                                      HANDLE *handle_ptr, CLIENT_ID *id )
 206 {
 207     struct startup_info *info = NULL;
 208     HANDLE handle = 0;
 209     TEB *teb = NULL;
 210     DWORD tid = 0;
 211     ULONG size;
 212     int request_pipe[2];
 213     NTSTATUS status;
 214
 215     if (pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
 216     fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
 217     wine_server_send_fd( request_pipe[0] );
 218
 219     SERVER_START_REQ( new_thread )
 220     {
 221         req->suspend    = suspended;
 222         req->inherit    = 0;  /* FIXME */
 223         req->request_fd = request_pipe[0];
 224         if (!(status = wine_server_call( req )))
 225         {
 226             handle = reply->handle;
 227             tid = reply->tid;
 228         }
 229         close( request_pipe[0] );
 230     }
 231     SERVER_END_REQ;
 232
 233     if (status) goto error;
 234
 235     if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*info) )))
 236     {
 237         status = STATUS_NO_MEMORY;
 238         goto error;
 239     }
 240
 241     if (!(teb = alloc_teb( &size )))
 242     {
 243         status = STATUS_NO_MEMORY;
 244         goto error;
 245     }
 246     teb->ClientId.UniqueProcess = (HANDLE)GetCurrentProcessId();
 247     teb->ClientId.UniqueThread  = (HANDLE)tid;
 248
 249     teb->tibflags    = TEBF_WIN32;
 250     teb->exit_code   = STILL_ACTIVE;
 251     teb->request_fd  = request_pipe[1];
 252     teb->reply_fd    = -1;
 253     teb->wait_fd[0]  = -1;
 254     teb->wait_fd[1]  = -1;
 255     teb->htask16     = NtCurrentTeb()->htask16;
 256
 257     NtAllocateVirtualMemory( GetCurrentProcess(), &info->pthread_info.teb_base, teb, &size,
 258                              MEM_SYSTEM, PAGE_EXECUTE_READWRITE );
 259     info->pthread_info.teb_size = size;
 260     info->pthread_info.teb_sel  = teb->teb_sel;
 261
 262     if (!stack_reserve || !stack_commit)
 263     {
 264         IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress );
 265         if (!stack_reserve) stack_reserve = nt->OptionalHeader.SizeOfStackReserve;
 266         if (!stack_commit) stack_commit = nt->OptionalHeader.SizeOfStackCommit;
 267     }
 268     if (stack_reserve < stack_commit) stack_reserve = stack_commit;
 269     stack_reserve = (stack_reserve + 0xffff) & ~0xffff;  /* round to 64K boundary */
 270     if (stack_reserve < 1024 * 1024) stack_reserve = 1024 * 1024;  /* Xlib needs a large stack */
 271
 272     info->pthread_info.stack_base = NULL;
 273     info->pthread_info.stack_size = stack_reserve;
 274     info->pthread_info.entry      = start_thread;
 275     info->entry_point             = start;
 276     info->entry_arg               = param;
 277
 278     if (wine_pthread_create_thread( &info->pthread_info ) == -1)
 279     {
 280         status = STATUS_NO_MEMORY;
 281         goto error;
 282     }
 283
 284     if (id) id->UniqueThread = (HANDLE)tid;
 285     if (handle_ptr) *handle_ptr = handle;
 286     else NtClose( handle );
 287
 288     return STATUS_SUCCESS;
 289
 290 error:
 291     if (teb) free_teb( teb );
 292     if (info) RtlFreeHeap( GetProcessHeap(), 0, info );
 293     if (handle) NtClose( handle );
 294     close( request_pipe[1] );
 295     return status;
 296 }
 297
 298
 299 /***********************************************************************
 300  *              NtOpenThread   (NTDLL.@)
 301  *              ZwOpenThread   (NTDLL.@)
 302  */
 303 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
 304                               const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
 305 {
 306     NTSTATUS ret;
 307
 308     SERVER_START_REQ( open_thread )
 309     {
 310         req->tid     = (thread_id_t)id->UniqueThread;
 311         req->access  = access;
 312         req->inherit = attr && (attr->Attributes & OBJ_INHERIT);
 313         ret = wine_server_call( req );
 314         *handle = reply->handle;
 315     }
 316     SERVER_END_REQ;
 317     return ret;
 318 }
 319
 320
 321 /******************************************************************************
 322  *              NtSuspendThread   (NTDLL.@)
 323  *              ZwSuspendThread   (NTDLL.@)
 324  */
 325 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
 326 {
 327     NTSTATUS ret;
 328
 329     SERVER_START_REQ( suspend_thread )
 330     {
 331         req->handle = handle;
 332         if (!(ret = wine_server_call( req ))) *count = reply->count;
 333     }
 334     SERVER_END_REQ;
 335     return ret;
 336 }
 337
 338
 339 /******************************************************************************
 340  *              NtResumeThread   (NTDLL.@)
 341  *              ZwResumeThread   (NTDLL.@)
 342  */
 343 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
 344 {
 345     NTSTATUS ret;
 346
 347     SERVER_START_REQ( resume_thread )
 348     {
 349         req->handle = handle;
 350         if (!(ret = wine_server_call( req ))) *count = reply->count;
 351     }
 352     SERVER_END_REQ;
 353     return ret;
 354 }
 355
 356
 357 /******************************************************************************
 358  *              NtTerminateThread  (NTDLL.@)
 359  *              ZwTerminateThread  (NTDLL.@)
 360  */
 361 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
 362 {
 363     NTSTATUS ret;
 364     BOOL self, last;
 365
 366     SERVER_START_REQ( terminate_thread )
 367     {
 368         req->handle    = handle;
 369         req->exit_code = exit_code;
 370         ret = wine_server_call( req );
 371         self = !ret && reply->self;
 372         last = reply->last;
 373     }
 374     SERVER_END_REQ;
 375
 376     if (self)
 377     {
 378         if (last) exit( exit_code );
 379         else server_abort_thread( exit_code );
 380     }
 381     return ret;
 382 }
 383
 384
 385 /******************************************************************************
 386  *              NtQueueApcThread  (NTDLL.@)
 387  */
 388 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
 389                                   ULONG_PTR arg2, ULONG_PTR arg3 )
 390 {
 391     NTSTATUS ret;
 392     SERVER_START_REQ( queue_apc )
 393     {
 394         req->handle = handle;
 395         req->user   = 1;
 396         req->func   = func;
 397         req->arg1   = (void *)arg1;
 398         req->arg2   = (void *)arg2;
 399         req->arg3   = (void *)arg3;
 400         ret = wine_server_call( req );
 401     }
 402     SERVER_END_REQ;
 403     return ret;
 404 }
 405
 406
 407 /***********************************************************************
 408  *              NtSetContextThread  (NTDLL.@)
 409  *              ZwSetContextThread  (NTDLL.@)
 410  */
 411 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
 412 {
 413     NTSTATUS ret;
 414
 415     SERVER_START_REQ( set_thread_context )
 416     {
 417         req->handle = handle;
 418         req->flags  = context->ContextFlags;
 419         wine_server_add_data( req, context, sizeof(*context) );
 420         ret = wine_server_call( req );
 421     }
 422     SERVER_END_REQ;
 423     return ret;
 424 }
 425
 426
 427 /***********************************************************************
 428  *              NtGetContextThread  (NTDLL.@)
 429  *              ZwGetContextThread  (NTDLL.@)
 430  */
 431 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
 432 {
 433     NTSTATUS ret;
 434
 435     SERVER_START_REQ( get_thread_context )
 436     {
 437         req->handle = handle;
 438         req->flags = context->ContextFlags;
 439         wine_server_add_data( req, context, sizeof(*context) );
 440         wine_server_set_reply( req, context, sizeof(*context) );
 441         ret = wine_server_call( req );
 442     }
 443     SERVER_END_REQ;
 444     return ret;
 445 }
 446
 447
 448 /******************************************************************************
 449  *              NtQueryInformationThread  (NTDLL.@)
 450  *              ZwQueryInformationThread  (NTDLL.@)
 451  */
 452 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
 453                                           void *data, ULONG length, ULONG *ret_len )
 454 {
 455     NTSTATUS status;
 456
 457     switch(class)
 458     {
 459     case ThreadBasicInformation:
 460         {
 461             THREAD_BASIC_INFORMATION info;
 462
 463             SERVER_START_REQ( get_thread_info )
 464             {
 465                 req->handle = handle;
 466                 req->tid_in = 0;
 467                 if (!(status = wine_server_call( req )))
 468                 {
 469                     info.ExitStatus             = reply->exit_code;
 470                     info.TebBaseAddress         = reply->teb;
 471                     info.ClientId.UniqueProcess = (HANDLE)reply->pid;
 472                     info.ClientId.UniqueThread  = (HANDLE)reply->tid;
 473                     info.AffinityMask           = reply->affinity;
 474                     info.Priority               = reply->priority;
 475                     info.BasePriority           = reply->priority;  /* FIXME */
 476                 }
 477             }
 478             SERVER_END_REQ;
 479             if (status == STATUS_SUCCESS)
 480             {
 481                 if (data) memcpy( data, &info, min( length, sizeof(info) ));
 482                 if (ret_len) *ret_len = min( length, sizeof(info) );
 483             }
 484         }
 485         return status;
 486     case ThreadTimes:
 487     case ThreadPriority:
 488     case ThreadBasePriority:
 489     case ThreadAffinityMask:
 490     case ThreadImpersonationToken:
 491     case ThreadDescriptorTableEntry:
 492     case ThreadEnableAlignmentFaultFixup:
 493     case ThreadEventPair_Reusable:
 494     case ThreadQuerySetWin32StartAddress:
 495     case ThreadZeroTlsCell:
 496     case ThreadPerformanceCount:
 497     case ThreadAmILastThread:
 498     case ThreadIdealProcessor:
 499     case ThreadPriorityBoost:
 500     case ThreadSetTlsArrayAddress:
 501     case ThreadIsIoPending:
 502     default:
 503         FIXME( "info class %d not supported yet\n", class );
 504         return STATUS_NOT_IMPLEMENTED;
 505     }
 506 }
 507
 508
 509 /******************************************************************************
 510  *              NtSetInformationThread  (NTDLL.@)
 511  *              ZwSetInformationThread  (NTDLL.@)
 512  */
 513 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
 514                                         LPCVOID data, ULONG length )
 515 {
 516     switch(class)
 517     {
 518     case ThreadZeroTlsCell:
 519         if (handle == GetCurrentThread())
 520         {
 521             LIST_ENTRY *entry;
 522             DWORD index;
 523
 524             if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
 525             index = *(DWORD *)data;
 526             if (index >= 64) return STATUS_INVALID_PARAMETER;
 527             RtlAcquirePebLock();
 528             for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
 529             {
 530                 TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
 531                 teb->TlsSlots[index] = 0;
 532             }
 533             RtlReleasePebLock();
 534             return STATUS_SUCCESS;
 535         }
 536         FIXME( "ZeroTlsCell not supported on other threads\n" );
 537         return STATUS_NOT_IMPLEMENTED;
 538
 539     case ThreadBasicInformation:
 540     case ThreadTimes:
 541     case ThreadPriority:
 542     case ThreadBasePriority:
 543     case ThreadAffinityMask:
 544     case ThreadImpersonationToken:
 545     case ThreadDescriptorTableEntry:
 546     case ThreadEnableAlignmentFaultFixup:
 547     case ThreadEventPair_Reusable:
 548     case ThreadQuerySetWin32StartAddress:
 549     case ThreadPerformanceCount:
 550     case ThreadAmILastThread:
 551     case ThreadIdealProcessor:
 552     case ThreadPriorityBoost:
 553     case ThreadSetTlsArrayAddress:
 554     case ThreadIsIoPending:
 555     default:
 556         FIXME( "info class %d not supported yet\n", class );
 557         return STATUS_NOT_IMPLEMENTED;
 558     }
 559 }
 560
 561
 562 /**********************************************************************
 563  *           NtCurrentTeb   (NTDLL.@)
 564  */
 565 #if defined(__i386__) && defined(__GNUC__)
 566 __ASM_GLOBAL_FUNC( NtCurrentTeb, ".byte 0x64\n\tmovl 0x18,%eax\n\tret" );
 567 #elif defined(__i386__) && defined(_MSC_VER)
 568 /* Nothing needs to be done. MS C "magically" exports the inline version from winnt.h */
 569 #else
 570 TEB * WINAPI NtCurrentTeb(void)
 571 {
 572     return wine_pthread_get_current_teb();
 573 }
 574 #endif  /* __i386__ */