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[wine.git] / dlls / ntdll / thread.c
blob56eca23c8af87093266e55b5340b6b5aa60df53c
1 /*
2 * NT threads support
4 * Copyright 1996, 2003 Alexandre Julliard
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.
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.
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
21 #include "config.h"
22 #include "wine/port.h"
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
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"
45 WINE_DEFAULT_DEBUG_CHANNEL(thread);
46 WINE_DECLARE_DEBUG_CHANNEL(relay);
48 struct _KUSER_SHARED_DATA *user_shared_data = NULL;
50 PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter = NULL;
52 /* info passed to a starting thread */
53 struct startup_info
55 TEB *teb;
56 PRTL_THREAD_START_ROUTINE entry_point;
57 void *entry_arg;
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;
70 /***********************************************************************
71 * get_unicode_string
73 * Copy a unicode string from the startup info.
75 static inline void get_unicode_string( UNICODE_STRING *str, WCHAR **src, WCHAR **dst, UINT len )
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;
86 /***********************************************************************
87 * init_user_process_params
89 * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
91 static NTSTATUS init_user_process_params( SIZE_T data_size, HANDLE *exe_file )
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;
100 if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, data_size )))
101 return STATUS_NO_MEMORY;
103 SERVER_START_REQ( get_startup_info )
105 wine_server_set_reply( req, info, data_size );
106 if (!(status = wine_server_call( req )))
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 );
114 SERVER_END_REQ;
115 if (status != STATUS_SUCCESS) goto done;
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);
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;
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;
152 src = (WCHAR *)(info + 1);
153 dst = (WCHAR *)(params + 1);
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;
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 );
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 );
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;
181 done:
182 RtlFreeHeap( GetProcessHeap(), 0, info );
183 return status;
186 /***********************************************************************
187 * thread_init
189 * Setup the initial thread.
191 * NOTES: The first allocated TEB on NT is at 0x7ffde000.
193 HANDLE thread_init(void)
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 */
203 virtual_init();
205 /* reserve space for shared user data */
207 addr = (void *)0x7ffe0000;
208 size = 0x10000;
209 NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE );
210 user_shared_data = addr;
212 /* allocate and initialize the PEB */
214 addr = NULL;
215 size = sizeof(*peb);
216 NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 1, &size,
217 MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
218 peb = addr;
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 );
238 /* allocate and initialize the initial TEB */
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);
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 );
254 signal_init_thread( teb );
255 virtual_init_threading();
257 debug_info.str_pos = debug_info.strings;
258 debug_info.out_pos = debug_info.output;
259 debug_init();
261 /* setup the server connection */
262 server_init_process();
263 info_size = server_init_thread( peb );
265 /* create the process heap */
266 if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
268 MESSAGE( "wine: failed to create the process heap\n" );
269 exit(1);
272 /* allocate user parameters */
273 if (info_size)
275 init_user_process_params( info_size, &exe_file );
277 else
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 );
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;
298 fill_cpu_info();
300 return exe_file;
304 /***********************************************************************
305 * terminate_thread
307 void terminate_thread( int status )
309 pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
310 if (interlocked_xchg_add( &nb_threads, -1 ) <= 1) _exit( status );
312 close( ntdll_get_thread_data()->wait_fd[0] );
313 close( ntdll_get_thread_data()->wait_fd[1] );
314 close( ntdll_get_thread_data()->reply_fd );
315 close( ntdll_get_thread_data()->request_fd );
316 pthread_exit( UIntToPtr(status) );
320 /***********************************************************************
321 * exit_thread
323 void exit_thread( int status )
325 static void *prev_teb;
326 TEB *teb;
328 if (status) /* send the exit code to the server (0 is already the default) */
330 SERVER_START_REQ( terminate_thread )
332 req->handle = wine_server_obj_handle( GetCurrentThread() );
333 req->exit_code = status;
334 wine_server_call( req );
336 SERVER_END_REQ;
339 if (interlocked_xchg_add( &nb_threads, -1 ) <= 1)
341 LdrShutdownProcess();
342 exit( status );
345 LdrShutdownThread();
346 RtlAcquirePebLock();
347 RemoveEntryList( &NtCurrentTeb()->TlsLinks );
348 RtlReleasePebLock();
349 RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots );
350 RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots );
352 pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
354 if ((teb = interlocked_xchg_ptr( &prev_teb, NtCurrentTeb() )))
356 struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
358 if (thread_data->pthread_id)
360 pthread_join( thread_data->pthread_id, NULL );
361 signal_free_thread( teb );
365 close( ntdll_get_thread_data()->wait_fd[0] );
366 close( ntdll_get_thread_data()->wait_fd[1] );
367 close( ntdll_get_thread_data()->reply_fd );
368 close( ntdll_get_thread_data()->request_fd );
369 pthread_exit( UIntToPtr(status) );
373 /***********************************************************************
374 * start_thread
376 * Startup routine for a newly created thread.
378 static void start_thread( struct startup_info *info )
380 TEB *teb = info->teb;
381 struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
382 PRTL_THREAD_START_ROUTINE func = info->entry_point;
383 void *arg = info->entry_arg;
384 struct debug_info debug_info;
386 debug_info.str_pos = debug_info.strings;
387 debug_info.out_pos = debug_info.output;
388 thread_data->debug_info = &debug_info;
389 thread_data->pthread_id = pthread_self();
391 signal_init_thread( teb );
392 server_init_thread( func );
393 pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
395 RtlAcquirePebLock();
396 InsertHeadList( &tls_links, &teb->TlsLinks );
397 RtlReleasePebLock();
399 MODULE_DllThreadAttach( NULL );
401 if (TRACE_ON(relay))
402 DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), func, arg );
404 call_thread_entry_point( (LPTHREAD_START_ROUTINE)func, arg );
408 /***********************************************************************
409 * RtlCreateUserThread (NTDLL.@)
411 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
412 BOOLEAN suspended, PVOID stack_addr,
413 SIZE_T stack_reserve, SIZE_T stack_commit,
414 PRTL_THREAD_START_ROUTINE start, void *param,
415 HANDLE *handle_ptr, CLIENT_ID *id )
417 sigset_t sigset;
418 pthread_t pthread_id;
419 pthread_attr_t attr;
420 struct ntdll_thread_data *thread_data;
421 struct startup_info *info = NULL;
422 HANDLE handle = 0;
423 TEB *teb = NULL;
424 DWORD tid = 0;
425 int request_pipe[2];
426 NTSTATUS status;
428 if (process != NtCurrentProcess())
430 apc_call_t call;
431 apc_result_t result;
433 memset( &call, 0, sizeof(call) );
435 call.create_thread.type = APC_CREATE_THREAD;
436 call.create_thread.func = wine_server_client_ptr( start );
437 call.create_thread.arg = wine_server_client_ptr( param );
438 call.create_thread.reserve = stack_reserve;
439 call.create_thread.commit = stack_commit;
440 call.create_thread.suspend = suspended;
441 status = NTDLL_queue_process_apc( process, &call, &result );
442 if (status != STATUS_SUCCESS) return status;
444 if (result.create_thread.status == STATUS_SUCCESS)
446 if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid);
447 if (handle_ptr) *handle_ptr = wine_server_ptr_handle( result.create_thread.handle );
448 else NtClose( wine_server_ptr_handle( result.create_thread.handle ));
450 return result.create_thread.status;
453 if (server_pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
454 wine_server_send_fd( request_pipe[0] );
456 SERVER_START_REQ( new_thread )
458 req->access = THREAD_ALL_ACCESS;
459 req->attributes = 0; /* FIXME */
460 req->suspend = suspended;
461 req->request_fd = request_pipe[0];
462 if (!(status = wine_server_call( req )))
464 handle = wine_server_ptr_handle( reply->handle );
465 tid = reply->tid;
467 close( request_pipe[0] );
469 SERVER_END_REQ;
471 if (status)
473 close( request_pipe[1] );
474 return status;
477 pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
479 if ((status = signal_alloc_thread( &teb ))) goto error;
481 teb->Peb = NtCurrentTeb()->Peb;
482 teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId());
483 teb->ClientId.UniqueThread = ULongToHandle(tid);
484 teb->StaticUnicodeString.Buffer = teb->StaticUnicodeBuffer;
485 teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
487 info = (struct startup_info *)(teb + 1);
488 info->teb = teb;
489 info->entry_point = start;
490 info->entry_arg = param;
492 thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
493 thread_data->request_fd = request_pipe[1];
494 thread_data->reply_fd = -1;
495 thread_data->wait_fd[0] = -1;
496 thread_data->wait_fd[1] = -1;
498 if ((status = virtual_alloc_thread_stack( teb, stack_reserve, stack_commit ))) goto error;
500 pthread_attr_init( &attr );
501 pthread_attr_setstack( &attr, teb->DeallocationStack,
502 (char *)teb->Tib.StackBase - (char *)teb->DeallocationStack );
503 pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM ); /* force creating a kernel thread */
504 interlocked_xchg_add( &nb_threads, 1 );
505 if (pthread_create( &pthread_id, &attr, (void * (*)(void *))start_thread, info ))
507 interlocked_xchg_add( &nb_threads, -1 );
508 pthread_attr_destroy( &attr );
509 status = STATUS_NO_MEMORY;
510 goto error;
512 pthread_attr_destroy( &attr );
513 pthread_sigmask( SIG_SETMASK, &sigset, NULL );
515 if (id) id->UniqueThread = ULongToHandle(tid);
516 if (handle_ptr) *handle_ptr = handle;
517 else NtClose( handle );
519 return STATUS_SUCCESS;
521 error:
522 if (teb) signal_free_thread( teb );
523 if (handle) NtClose( handle );
524 pthread_sigmask( SIG_SETMASK, &sigset, NULL );
525 close( request_pipe[1] );
526 return status;
530 /******************************************************************************
531 * RtlGetNtGlobalFlags (NTDLL.@)
533 ULONG WINAPI RtlGetNtGlobalFlags(void)
535 if (!peb) return 0; /* init not done yet */
536 return peb->NtGlobalFlag;
540 /***********************************************************************
541 * NtOpenThread (NTDLL.@)
542 * ZwOpenThread (NTDLL.@)
544 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
545 const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
547 NTSTATUS ret;
549 SERVER_START_REQ( open_thread )
551 req->tid = HandleToULong(id->UniqueThread);
552 req->access = access;
553 req->attributes = attr ? attr->Attributes : 0;
554 ret = wine_server_call( req );
555 *handle = wine_server_ptr_handle( reply->handle );
557 SERVER_END_REQ;
558 return ret;
562 /******************************************************************************
563 * NtSuspendThread (NTDLL.@)
564 * ZwSuspendThread (NTDLL.@)
566 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
568 NTSTATUS ret;
570 SERVER_START_REQ( suspend_thread )
572 req->handle = wine_server_obj_handle( handle );
573 if (!(ret = wine_server_call( req ))) *count = reply->count;
575 SERVER_END_REQ;
576 return ret;
580 /******************************************************************************
581 * NtResumeThread (NTDLL.@)
582 * ZwResumeThread (NTDLL.@)
584 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
586 NTSTATUS ret;
588 SERVER_START_REQ( resume_thread )
590 req->handle = wine_server_obj_handle( handle );
591 if (!(ret = wine_server_call( req ))) *count = reply->count;
593 SERVER_END_REQ;
594 return ret;
598 /******************************************************************************
599 * NtAlertResumeThread (NTDLL.@)
600 * ZwAlertResumeThread (NTDLL.@)
602 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
604 FIXME( "stub: should alert thread %p\n", handle );
605 return NtResumeThread( handle, count );
609 /******************************************************************************
610 * NtAlertThread (NTDLL.@)
611 * ZwAlertThread (NTDLL.@)
613 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
615 FIXME( "stub: %p\n", handle );
616 return STATUS_NOT_IMPLEMENTED;
620 /******************************************************************************
621 * NtTerminateThread (NTDLL.@)
622 * ZwTerminateThread (NTDLL.@)
624 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
626 NTSTATUS ret;
627 BOOL self;
629 SERVER_START_REQ( terminate_thread )
631 req->handle = wine_server_obj_handle( handle );
632 req->exit_code = exit_code;
633 ret = wine_server_call( req );
634 self = !ret && reply->self;
636 SERVER_END_REQ;
638 if (self) abort_thread( exit_code );
639 return ret;
643 /******************************************************************************
644 * NtQueueApcThread (NTDLL.@)
646 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
647 ULONG_PTR arg2, ULONG_PTR arg3 )
649 NTSTATUS ret;
650 SERVER_START_REQ( queue_apc )
652 req->handle = wine_server_obj_handle( handle );
653 if (func)
655 req->call.type = APC_USER;
656 req->call.user.func = wine_server_client_ptr( func );
657 req->call.user.args[0] = arg1;
658 req->call.user.args[1] = arg2;
659 req->call.user.args[2] = arg3;
661 else req->call.type = APC_NONE; /* wake up only */
662 ret = wine_server_call( req );
664 SERVER_END_REQ;
665 return ret;
669 /***********************************************************************
670 * NtSetContextThread (NTDLL.@)
671 * ZwSetContextThread (NTDLL.@)
673 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
675 NTSTATUS ret;
676 DWORD dummy, i;
677 BOOL self = FALSE;
679 #ifdef __i386__
680 /* on i386 debug registers always require a server call */
681 self = (handle == GetCurrentThread());
682 if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
684 self = (ntdll_get_thread_data()->dr0 == context->Dr0 &&
685 ntdll_get_thread_data()->dr1 == context->Dr1 &&
686 ntdll_get_thread_data()->dr2 == context->Dr2 &&
687 ntdll_get_thread_data()->dr3 == context->Dr3 &&
688 ntdll_get_thread_data()->dr6 == context->Dr6 &&
689 ntdll_get_thread_data()->dr7 == context->Dr7);
691 #endif
693 if (!self)
695 context_t server_context;
697 context_to_server( &server_context, context );
699 SERVER_START_REQ( set_thread_context )
701 req->handle = wine_server_obj_handle( handle );
702 req->suspend = 0;
703 wine_server_add_data( req, &server_context, sizeof(server_context) );
704 ret = wine_server_call( req );
705 self = reply->self;
707 SERVER_END_REQ;
709 if (ret == STATUS_PENDING)
711 if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
713 for (i = 0; i < 100; i++)
715 SERVER_START_REQ( set_thread_context )
717 req->handle = wine_server_obj_handle( handle );
718 req->suspend = 0;
719 wine_server_add_data( req, &server_context, sizeof(server_context) );
720 ret = wine_server_call( req );
722 SERVER_END_REQ;
723 if (ret == STATUS_PENDING)
725 LARGE_INTEGER timeout;
726 timeout.QuadPart = -10000;
727 NtDelayExecution( FALSE, &timeout );
729 else break;
731 NtResumeThread( handle, &dummy );
733 if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
736 if (ret) return ret;
739 if (self) set_cpu_context( context );
740 return STATUS_SUCCESS;
744 /* convert CPU-specific flags to generic server flags */
745 static inline unsigned int get_server_context_flags( DWORD flags )
747 unsigned int ret = 0;
749 flags &= 0x3f; /* mask CPU id flags */
750 if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
751 if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
752 #ifdef CONTEXT_SEGMENTS
753 if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
754 #endif
755 #ifdef CONTEXT_FLOATING_POINT
756 if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
757 #endif
758 #ifdef CONTEXT_DEBUG_REGISTERS
759 if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
760 #endif
761 #ifdef CONTEXT_EXTENDED_REGISTERS
762 if (flags & CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS;
763 #endif
764 return ret;
767 /***********************************************************************
768 * NtGetContextThread (NTDLL.@)
769 * ZwGetContextThread (NTDLL.@)
771 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
773 NTSTATUS ret;
774 DWORD dummy, i;
775 DWORD needed_flags = context->ContextFlags;
776 BOOL self = (handle == GetCurrentThread());
778 #ifdef __i386__
779 /* on i386 debug registers always require a server call */
780 if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
781 #endif
783 if (!self)
785 unsigned int server_flags = get_server_context_flags( context->ContextFlags );
786 context_t server_context;
788 SERVER_START_REQ( get_thread_context )
790 req->handle = wine_server_obj_handle( handle );
791 req->flags = server_flags;
792 req->suspend = 0;
793 wine_server_set_reply( req, &server_context, sizeof(server_context) );
794 ret = wine_server_call( req );
795 self = reply->self;
797 SERVER_END_REQ;
799 if (ret == STATUS_PENDING)
801 if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
803 for (i = 0; i < 100; i++)
805 SERVER_START_REQ( get_thread_context )
807 req->handle = wine_server_obj_handle( handle );
808 req->flags = server_flags;
809 req->suspend = 0;
810 wine_server_set_reply( req, &server_context, sizeof(server_context) );
811 ret = wine_server_call( req );
813 SERVER_END_REQ;
814 if (ret == STATUS_PENDING)
816 LARGE_INTEGER timeout;
817 timeout.QuadPart = -10000;
818 NtDelayExecution( FALSE, &timeout );
820 else break;
822 NtResumeThread( handle, &dummy );
824 if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
826 if (!ret) ret = context_from_server( context, &server_context );
827 if (ret) return ret;
828 needed_flags &= ~context->ContextFlags;
831 if (self)
833 if (needed_flags)
835 CONTEXT ctx;
836 RtlCaptureContext( &ctx );
837 copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
838 context->ContextFlags |= ctx.ContextFlags & needed_flags;
840 #ifdef __i386__
841 /* update the cached version of the debug registers */
842 if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
844 ntdll_get_thread_data()->dr0 = context->Dr0;
845 ntdll_get_thread_data()->dr1 = context->Dr1;
846 ntdll_get_thread_data()->dr2 = context->Dr2;
847 ntdll_get_thread_data()->dr3 = context->Dr3;
848 ntdll_get_thread_data()->dr6 = context->Dr6;
849 ntdll_get_thread_data()->dr7 = context->Dr7;
851 #endif
853 return STATUS_SUCCESS;
857 /******************************************************************************
858 * NtQueryInformationThread (NTDLL.@)
859 * ZwQueryInformationThread (NTDLL.@)
861 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
862 void *data, ULONG length, ULONG *ret_len )
864 NTSTATUS status;
866 switch(class)
868 case ThreadBasicInformation:
870 THREAD_BASIC_INFORMATION info;
871 const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
873 SERVER_START_REQ( get_thread_info )
875 req->handle = wine_server_obj_handle( handle );
876 req->tid_in = 0;
877 if (!(status = wine_server_call( req )))
879 info.ExitStatus = reply->exit_code;
880 info.TebBaseAddress = wine_server_get_ptr( reply->teb );
881 info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
882 info.ClientId.UniqueThread = ULongToHandle(reply->tid);
883 info.AffinityMask = reply->affinity & affinity_mask;
884 info.Priority = reply->priority;
885 info.BasePriority = reply->priority; /* FIXME */
888 SERVER_END_REQ;
889 if (status == STATUS_SUCCESS)
891 if (data) memcpy( data, &info, min( length, sizeof(info) ));
892 if (ret_len) *ret_len = min( length, sizeof(info) );
895 return status;
896 case ThreadAffinityMask:
898 const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
899 ULONG_PTR affinity = 0;
901 SERVER_START_REQ( get_thread_info )
903 req->handle = wine_server_obj_handle( handle );
904 req->tid_in = 0;
905 if (!(status = wine_server_call( req )))
906 affinity = reply->affinity & affinity_mask;
908 SERVER_END_REQ;
909 if (status == STATUS_SUCCESS)
911 if (data) memcpy( data, &affinity, min( length, sizeof(affinity) ));
912 if (ret_len) *ret_len = min( length, sizeof(affinity) );
915 return status;
916 case ThreadTimes:
918 KERNEL_USER_TIMES kusrt;
919 /* We need to do a server call to get the creation time or exit time */
920 /* This works on any thread */
921 SERVER_START_REQ( get_thread_info )
923 req->handle = wine_server_obj_handle( handle );
924 req->tid_in = 0;
925 status = wine_server_call( req );
926 if (status == STATUS_SUCCESS)
928 kusrt.CreateTime.QuadPart = reply->creation_time;
929 kusrt.ExitTime.QuadPart = reply->exit_time;
932 SERVER_END_REQ;
933 if (status == STATUS_SUCCESS)
935 /* We call times(2) for kernel time or user time */
936 /* We can only (portably) do this for the current thread */
937 if (handle == GetCurrentThread())
939 struct tms time_buf;
940 long clocks_per_sec = sysconf(_SC_CLK_TCK);
942 times(&time_buf);
943 kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
944 kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
946 else
948 static BOOL reported = FALSE;
950 kusrt.KernelTime.QuadPart = 0;
951 kusrt.UserTime.QuadPart = 0;
952 if (reported)
953 TRACE("Cannot get kerneltime or usertime of other threads\n");
954 else
956 FIXME("Cannot get kerneltime or usertime of other threads\n");
957 reported = TRUE;
960 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
961 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
964 return status;
965 case ThreadDescriptorTableEntry:
967 #ifdef __i386__
968 THREAD_DESCRIPTOR_INFORMATION* tdi = data;
969 if (length < sizeof(*tdi))
970 status = STATUS_INFO_LENGTH_MISMATCH;
971 else if (!(tdi->Selector & 4)) /* GDT selector */
973 unsigned sel = tdi->Selector & ~3; /* ignore RPL */
974 status = STATUS_SUCCESS;
975 if (!sel) /* null selector */
976 memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
977 else
979 tdi->Entry.BaseLow = 0;
980 tdi->Entry.HighWord.Bits.BaseMid = 0;
981 tdi->Entry.HighWord.Bits.BaseHi = 0;
982 tdi->Entry.LimitLow = 0xffff;
983 tdi->Entry.HighWord.Bits.LimitHi = 0xf;
984 tdi->Entry.HighWord.Bits.Dpl = 3;
985 tdi->Entry.HighWord.Bits.Sys = 0;
986 tdi->Entry.HighWord.Bits.Pres = 1;
987 tdi->Entry.HighWord.Bits.Granularity = 1;
988 tdi->Entry.HighWord.Bits.Default_Big = 1;
989 tdi->Entry.HighWord.Bits.Type = 0x12;
990 /* it has to be one of the system GDT selectors */
991 if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
993 if (sel == (wine_get_cs() & ~3))
994 tdi->Entry.HighWord.Bits.Type |= 8; /* code segment */
995 else status = STATUS_ACCESS_DENIED;
999 else
1001 SERVER_START_REQ( get_selector_entry )
1003 req->handle = wine_server_obj_handle( handle );
1004 req->entry = tdi->Selector >> 3;
1005 status = wine_server_call( req );
1006 if (!status)
1008 if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1009 status = STATUS_ACCESS_VIOLATION;
1010 else
1012 wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1013 wine_ldt_set_limit( &tdi->Entry, reply->limit );
1014 wine_ldt_set_flags( &tdi->Entry, reply->flags );
1018 SERVER_END_REQ;
1020 if (status == STATUS_SUCCESS && ret_len)
1021 /* yes, that's a bit strange, but it's the way it is */
1022 *ret_len = sizeof(LDT_ENTRY);
1023 #else
1024 status = STATUS_NOT_IMPLEMENTED;
1025 #endif
1026 return status;
1028 case ThreadAmILastThread:
1030 SERVER_START_REQ(get_thread_info)
1032 req->handle = wine_server_obj_handle( handle );
1033 req->tid_in = 0;
1034 status = wine_server_call( req );
1035 if (status == STATUS_SUCCESS)
1037 BOOLEAN last = reply->last;
1038 if (data) memcpy( data, &last, min( length, sizeof(last) ));
1039 if (ret_len) *ret_len = min( length, sizeof(last) );
1042 SERVER_END_REQ;
1043 return status;
1045 case ThreadPriority:
1046 case ThreadBasePriority:
1047 case ThreadImpersonationToken:
1048 case ThreadEnableAlignmentFaultFixup:
1049 case ThreadEventPair_Reusable:
1050 case ThreadQuerySetWin32StartAddress:
1051 case ThreadZeroTlsCell:
1052 case ThreadPerformanceCount:
1053 case ThreadIdealProcessor:
1054 case ThreadPriorityBoost:
1055 case ThreadSetTlsArrayAddress:
1056 case ThreadIsIoPending:
1057 default:
1058 FIXME( "info class %d not supported yet\n", class );
1059 return STATUS_NOT_IMPLEMENTED;
1064 /******************************************************************************
1065 * NtSetInformationThread (NTDLL.@)
1066 * ZwSetInformationThread (NTDLL.@)
1068 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1069 LPCVOID data, ULONG length )
1071 NTSTATUS status;
1072 switch(class)
1074 case ThreadZeroTlsCell:
1075 if (handle == GetCurrentThread())
1077 LIST_ENTRY *entry;
1078 DWORD index;
1080 if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1081 index = *(const DWORD *)data;
1082 if (index < TLS_MINIMUM_AVAILABLE)
1084 RtlAcquirePebLock();
1085 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1087 TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1088 teb->TlsSlots[index] = 0;
1090 RtlReleasePebLock();
1092 else
1094 index -= TLS_MINIMUM_AVAILABLE;
1095 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1096 return STATUS_INVALID_PARAMETER;
1097 RtlAcquirePebLock();
1098 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1100 TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1101 if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1103 RtlReleasePebLock();
1105 return STATUS_SUCCESS;
1107 FIXME( "ZeroTlsCell not supported on other threads\n" );
1108 return STATUS_NOT_IMPLEMENTED;
1110 case ThreadImpersonationToken:
1112 const HANDLE *phToken = data;
1113 if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1114 TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1115 SERVER_START_REQ( set_thread_info )
1117 req->handle = wine_server_obj_handle( handle );
1118 req->token = wine_server_obj_handle( *phToken );
1119 req->mask = SET_THREAD_INFO_TOKEN;
1120 status = wine_server_call( req );
1122 SERVER_END_REQ;
1124 return status;
1125 case ThreadBasePriority:
1127 const DWORD *pprio = data;
1128 if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1129 SERVER_START_REQ( set_thread_info )
1131 req->handle = wine_server_obj_handle( handle );
1132 req->priority = *pprio;
1133 req->mask = SET_THREAD_INFO_PRIORITY;
1134 status = wine_server_call( req );
1136 SERVER_END_REQ;
1138 return status;
1139 case ThreadAffinityMask:
1141 const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1;
1142 ULONG_PTR req_aff;
1144 if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER;
1145 req_aff = *(const ULONG_PTR *)data;
1146 if ((ULONG)req_aff == ~0u) req_aff = affinity_mask;
1147 else if (req_aff & ~affinity_mask) return STATUS_INVALID_PARAMETER;
1148 else if (!req_aff) return STATUS_INVALID_PARAMETER;
1149 SERVER_START_REQ( set_thread_info )
1151 req->handle = wine_server_obj_handle( handle );
1152 req->affinity = req_aff;
1153 req->mask = SET_THREAD_INFO_AFFINITY;
1154 status = wine_server_call( req );
1156 SERVER_END_REQ;
1158 return status;
1159 case ThreadHideFromDebugger:
1160 /* pretend the call succeeded to satisfy some code protectors */
1161 return STATUS_SUCCESS;
1163 case ThreadBasicInformation:
1164 case ThreadTimes:
1165 case ThreadPriority:
1166 case ThreadDescriptorTableEntry:
1167 case ThreadEnableAlignmentFaultFixup:
1168 case ThreadEventPair_Reusable:
1169 case ThreadQuerySetWin32StartAddress:
1170 case ThreadPerformanceCount:
1171 case ThreadAmILastThread:
1172 case ThreadIdealProcessor:
1173 case ThreadPriorityBoost:
1174 case ThreadSetTlsArrayAddress:
1175 case ThreadIsIoPending:
1176 default:
1177 FIXME( "info class %d not supported yet\n", class );
1178 return STATUS_NOT_IMPLEMENTED;