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advapi32: Use exponential backoff when waiting for a service to start.
[wine/multimedia.git] / dlls / ntdll / thread.c
bloba93439259802fdba988d45319ef8c0d78a2fcadf
1 /*
2 * NT threads support
3 *
4 * Copyright 1996, 2003 Alexandre Julliard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include "config.h"
22 #include "wine/port.h"
23
24 #include <assert.h>
25 #include <sys/types.h>
26 #ifdef HAVE_SYS_MMAN_H
27 #include <sys/mman.h>
28 #endif
29 #ifdef HAVE_SYS_TIMES_H
30 #include <sys/times.h>
31 #endif
32
33 #define NONAMELESSUNION
34 #include "ntstatus.h"
35 #define WIN32_NO_STATUS
36 #include "thread.h"
37 #include "winternl.h"
38 #include "wine/library.h"
39 #include "wine/server.h"
40 #include "wine/pthread.h"
41 #include "wine/debug.h"
42 #include "ntdll_misc.h"
43 #include "ddk/wdm.h"
44 #include "wine/exception.h"
45
46 WINE_DEFAULT_DEBUG_CHANNEL(thread);
47 WINE_DECLARE_DEBUG_CHANNEL(relay);
48
49 struct _KUSER_SHARED_DATA *user_shared_data = NULL;
50
51 /* info passed to a starting thread */
52 struct startup_info
53 {
54 struct wine_pthread_thread_info pthread_info;
55 PRTL_THREAD_START_ROUTINE entry_point;
56 void *entry_arg;
57 };
58
59 static PEB_LDR_DATA ldr;
60 static RTL_USER_PROCESS_PARAMETERS params; /* default parameters if no parent */
61 static WCHAR current_dir[MAX_NT_PATH_LENGTH];
62 static RTL_BITMAP tls_bitmap;
63 static RTL_BITMAP tls_expansion_bitmap;
64 static LIST_ENTRY tls_links;
65 static size_t sigstack_total_size;
66 static ULONG sigstack_zero_bits;
67
68 struct wine_pthread_functions pthread_functions = { NULL };
69
70
71 static RTL_CRITICAL_SECTION ldt_section;
72 static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
73 {
74 0, 0, &ldt_section,
75 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
76 0, 0, { (DWORD_PTR)(__FILE__ ": ldt_section") }
77 };
78 static RTL_CRITICAL_SECTION ldt_section = { &critsect_debug, -1, 0, 0, 0, 0 };
79 static sigset_t ldt_sigset;
80
81 /***********************************************************************
82 * locking for LDT routines
83 */
84 static void ldt_lock(void)
85 {
86 sigset_t sigset;
87
88 pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, &sigset );
89 RtlEnterCriticalSection( &ldt_section );
90 if (ldt_section.RecursionCount == 1) ldt_sigset = sigset;
91 }
92
93 static void ldt_unlock(void)
94 {
95 if (ldt_section.RecursionCount == 1)
96 {
97 sigset_t sigset = ldt_sigset;
98 RtlLeaveCriticalSection( &ldt_section );
99 pthread_functions.sigprocmask( SIG_SETMASK, &sigset, NULL );
100 }
101 else RtlLeaveCriticalSection( &ldt_section );
102 }
103
104
105 /***********************************************************************
106 * init_teb
107 */
108 static inline NTSTATUS init_teb( TEB *teb )
109 {
110 struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
111
112 teb->Tib.ExceptionList = (void *)~0UL;
113 teb->Tib.StackBase = (void *)~0UL;
114 teb->Tib.Self = &teb->Tib;
115 teb->StaticUnicodeString.Buffer = teb->StaticUnicodeBuffer;
116 teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
117
118 if (!(thread_data->fs = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
119 thread_data->request_fd = -1;
120 thread_data->reply_fd = -1;
121 thread_data->wait_fd[0] = -1;
122 thread_data->wait_fd[1] = -1;
123
124 return STATUS_SUCCESS;
125 }
126
127
128 /***********************************************************************
129 * fix_unicode_string
130 *
131 * Make sure the unicode string doesn't point beyond the end pointer
132 */
133 static inline void fix_unicode_string( UNICODE_STRING *str, const char *end_ptr )
134 {
135 if ((char *)str->Buffer >= end_ptr)
136 {
137 str->Length = str->MaximumLength = 0;
138 str->Buffer = NULL;
139 return;
140 }
141 if ((char *)str->Buffer + str->MaximumLength > end_ptr)
142 {
143 str->MaximumLength = (end_ptr - (char *)str->Buffer) & ~(sizeof(WCHAR) - 1);
144 }
145 if (str->Length >= str->MaximumLength)
146 {
147 if (str->MaximumLength >= sizeof(WCHAR))
148 str->Length = str->MaximumLength - sizeof(WCHAR);
149 else
150 str->Length = str->MaximumLength = 0;
151 }
152 }
153
154
155 /***********************************************************************
156 * init_user_process_params
157 *
158 * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
159 */
160 static NTSTATUS init_user_process_params( SIZE_T info_size, HANDLE *exe_file )
161 {
162 void *ptr;
163 SIZE_T env_size;
164 NTSTATUS status;
165 RTL_USER_PROCESS_PARAMETERS *params = NULL;
166
167 status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &info_size,
168 MEM_COMMIT, PAGE_READWRITE );
169 if (status != STATUS_SUCCESS) return status;
170
171 params->AllocationSize = info_size;
172 NtCurrentTeb()->Peb->ProcessParameters = params;
173
174 SERVER_START_REQ( get_startup_info )
175 {
176 wine_server_set_reply( req, params, info_size );
177 if (!(status = wine_server_call( req )))
178 {
179 info_size = wine_server_reply_size( reply );
180 *exe_file = reply->exe_file;
181 params->hStdInput = reply->hstdin;
182 params->hStdOutput = reply->hstdout;
183 params->hStdError = reply->hstderr;
184 }
185 }
186 SERVER_END_REQ;
187 if (status != STATUS_SUCCESS) return status;
188
189 if (params->Size > info_size) params->Size = info_size;
190
191 /* make sure the strings are valid */
192 fix_unicode_string( &params->CurrentDirectory.DosPath, (char *)info_size );
193 fix_unicode_string( &params->DllPath, (char *)info_size );
194 fix_unicode_string( &params->ImagePathName, (char *)info_size );
195 fix_unicode_string( &params->CommandLine, (char *)info_size );
196 fix_unicode_string( &params->WindowTitle, (char *)info_size );
197 fix_unicode_string( &params->Desktop, (char *)info_size );
198 fix_unicode_string( &params->ShellInfo, (char *)info_size );
199 fix_unicode_string( &params->RuntimeInfo, (char *)info_size );
200
201 /* environment needs to be a separate memory block */
202 env_size = info_size - params->Size;
203 if (!env_size) env_size = 1;
204 ptr = NULL;
205 status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &env_size,
206 MEM_COMMIT, PAGE_READWRITE );
207 if (status != STATUS_SUCCESS) return status;
208 memcpy( ptr, (char *)params + params->Size, info_size - params->Size );
209 params->Environment = ptr;
210
211 RtlNormalizeProcessParams( params );
212 return status;
213 }
214
215
216 /***********************************************************************
217 * thread_init
218 *
219 * Setup the initial thread.
220 *
221 * NOTES: The first allocated TEB on NT is at 0x7ffde000.
222 */
223 HANDLE thread_init(void)
224 {
225 PEB *peb;
226 TEB *teb;
227 void *addr;
228 SIZE_T size, info_size;
229 HANDLE exe_file = 0;
230 LARGE_INTEGER now;
231 struct ntdll_thread_data *thread_data;
232 struct wine_pthread_thread_info thread_info;
233 static struct debug_info debug_info; /* debug info for initial thread */
234
235 virtual_init();
236
237 /* reserve space for shared user data */
238
239 addr = (void *)0x7ffe0000;
240 size = 0x10000;
241 NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE );
242 user_shared_data = addr;
243
244 /* allocate and initialize the PEB */
245
246 addr = NULL;
247 size = sizeof(*peb);
248 NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 1, &size,
249 MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
250 peb = addr;
251
252 peb->NumberOfProcessors = 1;
253 peb->ProcessParameters = &params;
254 peb->TlsBitmap = &tls_bitmap;
255 peb->TlsExpansionBitmap = &tls_expansion_bitmap;
256 peb->LdrData = &ldr;
257 params.CurrentDirectory.DosPath.Buffer = current_dir;
258 params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
259 params.wShowWindow = 1; /* SW_SHOWNORMAL */
260 RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 );
261 RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits,
262 sizeof(peb->TlsExpansionBitmapBits) * 8 );
263 InitializeListHead( &ldr.InLoadOrderModuleList );
264 InitializeListHead( &ldr.InMemoryOrderModuleList );
265 InitializeListHead( &ldr.InInitializationOrderModuleList );
266 InitializeListHead( &tls_links );
267
268 /* allocate and initialize the initial TEB */
269
270 sigstack_total_size = get_signal_stack_total_size();
271 while (1 << sigstack_zero_bits < sigstack_total_size) sigstack_zero_bits++;
272 assert( 1 << sigstack_zero_bits == sigstack_total_size ); /* must be a power of 2 */
273 assert( sigstack_total_size >= sizeof(TEB) + sizeof(struct startup_info) );
274 thread_info.teb_size = sigstack_total_size;
275
276 addr = NULL;
277 size = sigstack_total_size;
278 NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
279 &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
280 teb = addr;
281 teb->Peb = peb;
282 thread_info.teb_size = size;
283 init_teb( teb );
284 thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
285 thread_data->debug_info = &debug_info;
286 InsertHeadList( &tls_links, &teb->TlsLinks );
287
288 thread_info.stack_base = NULL;
289 thread_info.stack_size = 0;
290 thread_info.teb_base = teb;
291 thread_info.teb_sel = thread_data->fs;
292 wine_pthread_get_functions( &pthread_functions, sizeof(pthread_functions) );
293 pthread_functions.init_current_teb( &thread_info );
294 pthread_functions.init_thread( &thread_info );
295 virtual_init_threading();
296
297 debug_info.str_pos = debug_info.strings;
298 debug_info.out_pos = debug_info.output;
299 debug_init();
300
301 /* setup the server connection */
302 server_init_process();
303 info_size = server_init_thread( thread_info.pid, thread_info.tid, NULL );
304
305 /* create the process heap */
306 if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
307 {
308 MESSAGE( "wine: failed to create the process heap\n" );
309 exit(1);
310 }
311
312 /* allocate user parameters */
313 if (info_size)
314 {
315 init_user_process_params( info_size, &exe_file );
316 }
317 else
318 {
319 /* This is wine specific: we have no parent (we're started from unix)
320 * so, create a simple console with bare handles to unix stdio
321 */
322 wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE, OBJ_INHERIT, &params.hStdInput );
323 wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
324 wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
325 }
326
327 /* initialize LDT locking */
328 wine_ldt_init_locking( ldt_lock, ldt_unlock );
329
330 /* initialize time values in user_shared_data */
331 NtQuerySystemTime( &now );
332 user_shared_data->SystemTime.LowPart = now.u.LowPart;
333 user_shared_data->SystemTime.High1Time = user_shared_data->SystemTime.High2Time = now.u.HighPart;
334 user_shared_data->u.TickCountQuad = (now.QuadPart - server_start_time) / 10000;
335 user_shared_data->u.TickCount.High2Time = user_shared_data->u.TickCount.High1Time;
336 user_shared_data->TickCountLowDeprecated = user_shared_data->u.TickCount.LowPart;
337 user_shared_data->TickCountMultiplier = 1 << 24;
338
339 return exe_file;
340 }
341
342 typedef LONG (WINAPI *PUNHANDLED_EXCEPTION_FILTER)(PEXCEPTION_POINTERS);
343 static PUNHANDLED_EXCEPTION_FILTER get_unhandled_exception_filter(void)
344 {
345 static PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter;
346 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
347 UNICODE_STRING module_name;
348 ANSI_STRING func_name;
349 HMODULE kernel32_handle;
350
351 if (unhandled_exception_filter) return unhandled_exception_filter;
352
353 RtlInitUnicodeString(&module_name, kernel32W);
354 RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
355
356 if (LdrGetDllHandle( 0, 0, &module_name, &kernel32_handle ) == STATUS_SUCCESS)
357 LdrGetProcedureAddress( kernel32_handle, &func_name, 0,
358 (void **)&unhandled_exception_filter );
359
360 return unhandled_exception_filter;
361 }
362
363 #ifdef __i386__
364 /* wrapper for apps that don't declare the thread function correctly */
365 extern DWORD call_thread_entry_point( PRTL_THREAD_START_ROUTINE entry, void *arg );
366 __ASM_GLOBAL_FUNC(call_thread_entry_point,
367 "pushl %ebp\n\t"
368 "movl %esp,%ebp\n\t"
369 "subl $4,%esp\n\t"
370 "pushl 12(%ebp)\n\t"
371 "movl 8(%ebp),%eax\n\t"
372 "call *%eax\n\t"
373 "leave\n\t"
374 "ret" );
375 #else
376 static inline DWORD call_thread_entry_point( PRTL_THREAD_START_ROUTINE entry, void *arg )
377 {
378 LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)entry;
379 return func( arg );
380 }
381 #endif
382
383 /***********************************************************************
384 * call_thread_func
385 *
386 * Hack to make things compatible with the thread procedures used by kernel32.CreateThread.
387 */
388 static void DECLSPEC_NORETURN call_thread_func( PRTL_THREAD_START_ROUTINE rtl_func, void *arg )
389 {
390 DWORD exit_code;
391 BOOL last;
392
393 MODULE_DllThreadAttach( NULL );
394
395 if (TRACE_ON(relay))
396 DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), rtl_func, arg );
397
398 exit_code = call_thread_entry_point( rtl_func, arg );
399
400 /* send the exit code to the server */
401 SERVER_START_REQ( terminate_thread )
402 {
403 req->handle = GetCurrentThread();
404 req->exit_code = exit_code;
405 wine_server_call( req );
406 last = reply->last;
407 }
408 SERVER_END_REQ;
409
410 if (last)
411 {
412 LdrShutdownProcess();
413 exit( exit_code );
414 }
415 else
416 {
417 LdrShutdownThread();
418 server_exit_thread( exit_code );
419 }
420 }
421
422
423 /***********************************************************************
424 * start_thread
425 *
426 * Startup routine for a newly created thread.
427 */
428 static void start_thread( struct wine_pthread_thread_info *info )
429 {
430 TEB *teb = info->teb_base;
431 struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
432 struct startup_info *startup_info = (struct startup_info *)info;
433 PRTL_THREAD_START_ROUTINE func = startup_info->entry_point;
434 void *arg = startup_info->entry_arg;
435 struct debug_info debug_info;
436 SIZE_T size, page_size = getpagesize();
437
438 debug_info.str_pos = debug_info.strings;
439 debug_info.out_pos = debug_info.output;
440 thread_data->debug_info = &debug_info;
441
442 pthread_functions.init_current_teb( info );
443 SIGNAL_Init();
444 server_init_thread( info->pid, info->tid, func );
445 pthread_functions.init_thread( info );
446
447 /* allocate a memory view for the stack */
448 size = info->stack_size;
449 teb->DeallocationStack = info->stack_base;
450 NtAllocateVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, 0,
451 &size, MEM_SYSTEM, PAGE_READWRITE );
452 /* limit is lower than base since the stack grows down */
453 teb->Tib.StackBase = (char *)info->stack_base + info->stack_size;
454 teb->Tib.StackLimit = (char *)info->stack_base + page_size;
455
456 /* setup the guard page */
457 size = page_size;
458 NtProtectVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, PAGE_NOACCESS, NULL );
459
460 pthread_functions.sigprocmask( SIG_UNBLOCK, &server_block_set, NULL );
461
462 RtlAcquirePebLock();
463 InsertHeadList( &tls_links, &teb->TlsLinks );
464 RtlReleasePebLock();
465
466 /* NOTE: Windows does not have an exception handler around the call to
467 * the thread attach. We do for ease of debugging */
468 if (get_unhandled_exception_filter())
469 {
470 __TRY
471 {
472 call_thread_func( func, arg );
473 }
474 __EXCEPT(get_unhandled_exception_filter())
475 {
476 NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
477 }
478 __ENDTRY
479 }
480 else
481 call_thread_func( func, arg );
482 }
483
484
485 /***********************************************************************
486 * RtlCreateUserThread (NTDLL.@)
487 */
488 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
489 BOOLEAN suspended, PVOID stack_addr,
490 SIZE_T stack_reserve, SIZE_T stack_commit,
491 PRTL_THREAD_START_ROUTINE start, void *param,
492 HANDLE *handle_ptr, CLIENT_ID *id )
493 {
494 sigset_t sigset;
495 struct ntdll_thread_data *thread_data = NULL;
496 struct ntdll_thread_regs *thread_regs;
497 struct startup_info *info = NULL;
498 void *addr = NULL;
499 HANDLE handle = 0;
500 TEB *teb;
501 DWORD tid = 0;
502 int request_pipe[2];
503 NTSTATUS status;
504 SIZE_T size, page_size = getpagesize();
505
506 if (process != NtCurrentProcess())
507 {
508 apc_call_t call;
509 apc_result_t result;
510
511 memset( &call, 0, sizeof(call) );
512
513 call.create_thread.type = APC_CREATE_THREAD;
514 call.create_thread.func = start;
515 call.create_thread.arg = param;
516 call.create_thread.reserve = stack_reserve;
517 call.create_thread.commit = stack_commit;
518 call.create_thread.suspend = suspended;
519 status = NTDLL_queue_process_apc( process, &call, &result );
520 if (status != STATUS_SUCCESS) return status;
521
522 if (result.create_thread.status == STATUS_SUCCESS)
523 {
524 if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid);
525 if (handle_ptr) *handle_ptr = result.create_thread.handle;
526 else NtClose( result.create_thread.handle );
527 }
528 return result.create_thread.status;
529 }
530
531 if (pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
532 fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
533 wine_server_send_fd( request_pipe[0] );
534
535 SERVER_START_REQ( new_thread )
536 {
537 req->access = THREAD_ALL_ACCESS;
538 req->attributes = 0; /* FIXME */
539 req->suspend = suspended;
540 req->request_fd = request_pipe[0];
541 if (!(status = wine_server_call( req )))
542 {
543 handle = reply->handle;
544 tid = reply->tid;
545 }
546 close( request_pipe[0] );
547 }
548 SERVER_END_REQ;
549
550 if (status)
551 {
552 close( request_pipe[1] );
553 return status;
554 }
555
556 pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, &sigset );
557
558 addr = NULL;
559 size = sigstack_total_size;
560 if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
561 &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
562 goto error;
563 teb = addr;
564 teb->Peb = NtCurrentTeb()->Peb;
565 info = (struct startup_info *)(teb + 1);
566 info->pthread_info.teb_size = size;
567 if ((status = init_teb( teb ))) goto error;
568
569 teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId());
570 teb->ClientId.UniqueThread = ULongToHandle(tid);
571
572 thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
573 thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
574 thread_data->request_fd = request_pipe[1];
575
576 info->pthread_info.teb_base = teb;
577 info->pthread_info.teb_sel = thread_data->fs;
578
579 /* inherit debug registers from parent thread */
580 thread_regs->dr0 = ntdll_get_thread_regs()->dr0;
581 thread_regs->dr1 = ntdll_get_thread_regs()->dr1;
582 thread_regs->dr2 = ntdll_get_thread_regs()->dr2;
583 thread_regs->dr3 = ntdll_get_thread_regs()->dr3;
584 thread_regs->dr6 = ntdll_get_thread_regs()->dr6;
585 thread_regs->dr7 = ntdll_get_thread_regs()->dr7;
586
587 if (!stack_reserve || !stack_commit)
588 {
589 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress );
590 if (!stack_reserve) stack_reserve = nt->OptionalHeader.SizeOfStackReserve;
591 if (!stack_commit) stack_commit = nt->OptionalHeader.SizeOfStackCommit;
592 }
593 if (stack_reserve < stack_commit) stack_reserve = stack_commit;
594 stack_reserve += page_size; /* for the guard page */
595 stack_reserve = (stack_reserve + 0xffff) & ~0xffff; /* round to 64K boundary */
596 if (stack_reserve < 1024 * 1024) stack_reserve = 1024 * 1024; /* Xlib needs a large stack */
597
598 info->pthread_info.stack_base = NULL;
599 info->pthread_info.stack_size = stack_reserve;
600 info->pthread_info.entry = start_thread;
601 info->entry_point = start;
602 info->entry_arg = param;
603
604 if (pthread_functions.create_thread( &info->pthread_info ) == -1)
605 {
606 status = STATUS_NO_MEMORY;
607 goto error;
608 }
609 pthread_functions.sigprocmask( SIG_SETMASK, &sigset, NULL );
610
611 if (id) id->UniqueThread = ULongToHandle(tid);
612 if (handle_ptr) *handle_ptr = handle;
613 else NtClose( handle );
614
615 return STATUS_SUCCESS;
616
617 error:
618 if (thread_data) wine_ldt_free_fs( thread_data->fs );
619 if (addr)
620 {
621 SIZE_T size = 0;
622 NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
623 }
624 if (handle) NtClose( handle );
625 pthread_functions.sigprocmask( SIG_SETMASK, &sigset, NULL );
626 close( request_pipe[1] );
627 return status;
628 }
629
630
631 /***********************************************************************
632 * RtlExitUserThread (NTDLL.@)
633 */
634 void WINAPI RtlExitUserThread( ULONG status )
635 {
636 LdrShutdownThread();
637 server_exit_thread( status );
638 }
639
640
641 /***********************************************************************
642 * NtOpenThread (NTDLL.@)
643 * ZwOpenThread (NTDLL.@)
644 */
645 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
646 const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
647 {
648 NTSTATUS ret;
649
650 SERVER_START_REQ( open_thread )
651 {
652 req->tid = HandleToULong(id->UniqueThread);
653 req->access = access;
654 req->attributes = attr ? attr->Attributes : 0;
655 ret = wine_server_call( req );
656 *handle = reply->handle;
657 }
658 SERVER_END_REQ;
659 return ret;
660 }
661
662
663 /******************************************************************************
664 * NtSuspendThread (NTDLL.@)
665 * ZwSuspendThread (NTDLL.@)
666 */
667 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
668 {
669 NTSTATUS ret;
670
671 SERVER_START_REQ( suspend_thread )
672 {
673 req->handle = handle;
674 if (!(ret = wine_server_call( req ))) *count = reply->count;
675 }
676 SERVER_END_REQ;
677 return ret;
678 }
679
680
681 /******************************************************************************
682 * NtResumeThread (NTDLL.@)
683 * ZwResumeThread (NTDLL.@)
684 */
685 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
686 {
687 NTSTATUS ret;
688
689 SERVER_START_REQ( resume_thread )
690 {
691 req->handle = handle;
692 if (!(ret = wine_server_call( req ))) *count = reply->count;
693 }
694 SERVER_END_REQ;
695 return ret;
696 }
697
698
699 /******************************************************************************
700 * NtAlertResumeThread (NTDLL.@)
701 * ZwAlertResumeThread (NTDLL.@)
702 */
703 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
704 {
705 FIXME( "stub: should alert thread %p\n", handle );
706 return NtResumeThread( handle, count );
707 }
708
709
710 /******************************************************************************
711 * NtAlertThread (NTDLL.@)
712 * ZwAlertThread (NTDLL.@)
713 */
714 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
715 {
716 FIXME( "stub: %p\n", handle );
717 return STATUS_NOT_IMPLEMENTED;
718 }
719
720
721 /******************************************************************************
722 * NtTerminateThread (NTDLL.@)
723 * ZwTerminateThread (NTDLL.@)
724 */
725 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
726 {
727 NTSTATUS ret;
728 BOOL self, last;
729
730 SERVER_START_REQ( terminate_thread )
731 {
732 req->handle = handle;
733 req->exit_code = exit_code;
734 ret = wine_server_call( req );
735 self = !ret && reply->self;
736 last = reply->last;
737 }
738 SERVER_END_REQ;
739
740 if (self)
741 {
742 if (last) exit( exit_code );
743 else server_abort_thread( exit_code );
744 }
745 return ret;
746 }
747
748
749 /******************************************************************************
750 * NtQueueApcThread (NTDLL.@)
751 */
752 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
753 ULONG_PTR arg2, ULONG_PTR arg3 )
754 {
755 NTSTATUS ret;
756 SERVER_START_REQ( queue_apc )
757 {
758 req->thread = handle;
759 if (func)
760 {
761 req->call.type = APC_USER;
762 req->call.user.func = func;
763 req->call.user.args[0] = arg1;
764 req->call.user.args[1] = arg2;
765 req->call.user.args[2] = arg3;
766 }
767 else req->call.type = APC_NONE; /* wake up only */
768 ret = wine_server_call( req );
769 }
770 SERVER_END_REQ;
771 return ret;
772 }
773
774
775 /***********************************************************************
776 * NtSetContextThread (NTDLL.@)
777 * ZwSetContextThread (NTDLL.@)
778 */
779 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
780 {
781 NTSTATUS ret;
782 DWORD dummy, i;
783 BOOL self = FALSE;
784
785 #ifdef __i386__
786 /* on i386 debug registers always require a server call */
787 self = (handle == GetCurrentThread());
788 if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
789 {
790 struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
791 self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 &&
792 regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 &&
793 regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7);
794 }
795 #endif
796
797 if (!self)
798 {
799 SERVER_START_REQ( set_thread_context )
800 {
801 req->handle = handle;
802 req->flags = context->ContextFlags;
803 req->suspend = 0;
804 wine_server_add_data( req, context, sizeof(*context) );
805 ret = wine_server_call( req );
806 self = reply->self;
807 }
808 SERVER_END_REQ;
809
810 if (ret == STATUS_PENDING)
811 {
812 if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
813 {
814 for (i = 0; i < 100; i++)
815 {
816 SERVER_START_REQ( set_thread_context )
817 {
818 req->handle = handle;
819 req->flags = context->ContextFlags;
820 req->suspend = 0;
821 wine_server_add_data( req, context, sizeof(*context) );
822 ret = wine_server_call( req );
823 }
824 SERVER_END_REQ;
825 if (ret == STATUS_PENDING)
826 {
827 LARGE_INTEGER timeout;
828 timeout.QuadPart = -10000;
829 NtDelayExecution( FALSE, &timeout );
830 }
831 else break;
832 }
833 NtResumeThread( handle, &dummy );
834 }
835 if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
836 }
837
838 if (ret) return ret;
839 }
840
841 if (self) set_cpu_context( context );
842 return STATUS_SUCCESS;
843 }
844
845
846 /* copy a context structure according to the flags */
847 static inline void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
848 {
849 #ifdef __i386__
850 flags &= ~CONTEXT_i386; /* get rid of CPU id */
851 if (flags & CONTEXT_INTEGER)
852 {
853 to->Eax = from->Eax;
854 to->Ebx = from->Ebx;
855 to->Ecx = from->Ecx;
856 to->Edx = from->Edx;
857 to->Esi = from->Esi;
858 to->Edi = from->Edi;
859 }
860 if (flags & CONTEXT_CONTROL)
861 {
862 to->Ebp = from->Ebp;
863 to->Esp = from->Esp;
864 to->Eip = from->Eip;
865 to->SegCs = from->SegCs;
866 to->SegSs = from->SegSs;
867 to->EFlags = from->EFlags;
868 }
869 if (flags & CONTEXT_SEGMENTS)
870 {
871 to->SegDs = from->SegDs;
872 to->SegEs = from->SegEs;
873 to->SegFs = from->SegFs;
874 to->SegGs = from->SegGs;
875 }
876 if (flags & CONTEXT_DEBUG_REGISTERS)
877 {
878 to->Dr0 = from->Dr0;
879 to->Dr1 = from->Dr1;
880 to->Dr2 = from->Dr2;
881 to->Dr3 = from->Dr3;
882 to->Dr6 = from->Dr6;
883 to->Dr7 = from->Dr7;
884 }
885 if (flags & CONTEXT_FLOATING_POINT)
886 {
887 to->FloatSave = from->FloatSave;
888 }
889 #elif defined(__x86_64__)
890 flags &= ~CONTEXT_AMD64; /* get rid of CPU id */
891 if (flags & CONTEXT_CONTROL)
892 {
893 to->Rbp = from->Rbp;
894 to->Rip = from->Rip;
895 to->Rsp = from->Rsp;
896 to->SegCs = from->SegCs;
897 to->SegSs = from->SegSs;
898 to->EFlags = from->EFlags;
899 to->MxCsr = from->MxCsr;
900 }
901 if (flags & CONTEXT_INTEGER)
902 {
903 to->Rax = from->Rax;
904 to->Rcx = from->Rcx;
905 to->Rdx = from->Rdx;
906 to->Rbx = from->Rbx;
907 to->Rsi = from->Rsi;
908 to->Rdi = from->Rdi;
909 to->R8 = from->R8;
910 to->R9 = from->R9;
911 to->R10 = from->R10;
912 to->R11 = from->R11;
913 to->R12 = from->R12;
914 to->R13 = from->R13;
915 to->R14 = from->R14;
916 to->R15 = from->R15;
917 }
918 if (flags & CONTEXT_SEGMENTS)
919 {
920 to->SegDs = from->SegDs;
921 to->SegEs = from->SegEs;
922 to->SegFs = from->SegFs;
923 to->SegGs = from->SegGs;
924 }
925 if (flags & CONTEXT_FLOATING_POINT)
926 {
927 to->u.FltSave = from->u.FltSave;
928 }
929 if (flags & CONTEXT_DEBUG_REGISTERS)
930 {
931 to->Dr0 = from->Dr0;
932 to->Dr1 = from->Dr1;
933 to->Dr2 = from->Dr2;
934 to->Dr3 = from->Dr3;
935 to->Dr6 = from->Dr6;
936 to->Dr7 = from->Dr7;
937 }
938 #elif defined(__sparc__)
939 flags &= ~CONTEXT_SPARC; /* get rid of CPU id */
940 if (flags & CONTEXT_CONTROL)
941 {
942 to->psr = from->psr;
943 to->pc = from->pc;
944 to->npc = from->npc;
945 to->y = from->y;
946 to->wim = from->wim;
947 to->tbr = from->tbr;
948 }
949 if (flags & CONTEXT_INTEGER)
950 {
951 to->g0 = from->g0;
952 to->g1 = from->g1;
953 to->g2 = from->g2;
954 to->g3 = from->g3;
955 to->g4 = from->g4;
956 to->g5 = from->g5;
957 to->g6 = from->g6;
958 to->g7 = from->g7;
959 to->o0 = from->o0;
960 to->o1 = from->o1;
961 to->o2 = from->o2;
962 to->o3 = from->o3;
963 to->o4 = from->o4;
964 to->o5 = from->o5;
965 to->o6 = from->o6;
966 to->o7 = from->o7;
967 to->l0 = from->l0;
968 to->l1 = from->l1;
969 to->l2 = from->l2;
970 to->l3 = from->l3;
971 to->l4 = from->l4;
972 to->l5 = from->l5;
973 to->l6 = from->l6;
974 to->l7 = from->l7;
975 to->i0 = from->i0;
976 to->i1 = from->i1;
977 to->i2 = from->i2;
978 to->i3 = from->i3;
979 to->i4 = from->i4;
980 to->i5 = from->i5;
981 to->i6 = from->i6;
982 to->i7 = from->i7;
983 }
984 if (flags & CONTEXT_FLOATING_POINT)
985 {
986 /* FIXME */
987 }
988 #elif defined(__powerpc__)
989 /* Has no CPU id */
990 if (flags & CONTEXT_CONTROL)
991 {
992 to->Msr = from->Msr;
993 to->Ctr = from->Ctr;
994 to->Iar = from->Iar;
995 }
996 if (flags & CONTEXT_INTEGER)
997 {
998 to->Gpr0 = from->Gpr0;
999 to->Gpr1 = from->Gpr1;
1000 to->Gpr2 = from->Gpr2;
1001 to->Gpr3 = from->Gpr3;
1002 to->Gpr4 = from->Gpr4;
1003 to->Gpr5 = from->Gpr5;
1004 to->Gpr6 = from->Gpr6;
1005 to->Gpr7 = from->Gpr7;
1006 to->Gpr8 = from->Gpr8;
1007 to->Gpr9 = from->Gpr9;
1008 to->Gpr10 = from->Gpr10;
1009 to->Gpr11 = from->Gpr11;
1010 to->Gpr12 = from->Gpr12;
1011 to->Gpr13 = from->Gpr13;
1012 to->Gpr14 = from->Gpr14;
1013 to->Gpr15 = from->Gpr15;
1014 to->Gpr16 = from->Gpr16;
1015 to->Gpr17 = from->Gpr17;
1016 to->Gpr18 = from->Gpr18;
1017 to->Gpr19 = from->Gpr19;
1018 to->Gpr20 = from->Gpr20;
1019 to->Gpr21 = from->Gpr21;
1020 to->Gpr22 = from->Gpr22;
1021 to->Gpr23 = from->Gpr23;
1022 to->Gpr24 = from->Gpr24;
1023 to->Gpr25 = from->Gpr25;
1024 to->Gpr26 = from->Gpr26;
1025 to->Gpr27 = from->Gpr27;
1026 to->Gpr28 = from->Gpr28;
1027 to->Gpr29 = from->Gpr29;
1028 to->Gpr30 = from->Gpr30;
1029 to->Gpr31 = from->Gpr31;
1030 to->Xer = from->Xer;
1031 to->Cr = from->Cr;
1032 }
1033 if (flags & CONTEXT_FLOATING_POINT)
1034 {
1035 to->Fpr0 = from->Fpr0;
1036 to->Fpr1 = from->Fpr1;
1037 to->Fpr2 = from->Fpr2;
1038 to->Fpr3 = from->Fpr3;
1039 to->Fpr4 = from->Fpr4;
1040 to->Fpr5 = from->Fpr5;
1041 to->Fpr6 = from->Fpr6;
1042 to->Fpr7 = from->Fpr7;
1043 to->Fpr8 = from->Fpr8;
1044 to->Fpr9 = from->Fpr9;
1045 to->Fpr10 = from->Fpr10;
1046 to->Fpr11 = from->Fpr11;
1047 to->Fpr12 = from->Fpr12;
1048 to->Fpr13 = from->Fpr13;
1049 to->Fpr14 = from->Fpr14;
1050 to->Fpr15 = from->Fpr15;
1051 to->Fpr16 = from->Fpr16;
1052 to->Fpr17 = from->Fpr17;
1053 to->Fpr18 = from->Fpr18;
1054 to->Fpr19 = from->Fpr19;
1055 to->Fpr20 = from->Fpr20;
1056 to->Fpr21 = from->Fpr21;
1057 to->Fpr22 = from->Fpr22;
1058 to->Fpr23 = from->Fpr23;
1059 to->Fpr24 = from->Fpr24;
1060 to->Fpr25 = from->Fpr25;
1061 to->Fpr26 = from->Fpr26;
1062 to->Fpr27 = from->Fpr27;
1063 to->Fpr28 = from->Fpr28;
1064 to->Fpr29 = from->Fpr29;
1065 to->Fpr30 = from->Fpr30;
1066 to->Fpr31 = from->Fpr31;
1067 to->Fpscr = from->Fpscr;
1068 }
1069 #else
1070 #error You must implement context copying for your CPU
1071 #endif
1072 }
1073
1074
1075 /***********************************************************************
1076 * NtGetContextThread (NTDLL.@)
1077 * ZwGetContextThread (NTDLL.@)
1078 */
1079 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
1080 {
1081 NTSTATUS ret;
1082 CONTEXT ctx;
1083 DWORD dummy, i;
1084 DWORD needed_flags = context->ContextFlags;
1085 BOOL self = (handle == GetCurrentThread());
1086
1087 #ifdef __i386__
1088 /* on i386 debug registers always require a server call */
1089 if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
1090 #endif
1091
1092 if (!self)
1093 {
1094 SERVER_START_REQ( get_thread_context )
1095 {
1096 req->handle = handle;
1097 req->flags = context->ContextFlags;
1098 req->suspend = 0;
1099 wine_server_set_reply( req, &ctx, sizeof(ctx) );
1100 ret = wine_server_call( req );
1101 self = reply->self;
1102 }
1103 SERVER_END_REQ;
1104
1105 if (ret == STATUS_PENDING)
1106 {
1107 if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
1108 {
1109 for (i = 0; i < 100; i++)
1110 {
1111 SERVER_START_REQ( get_thread_context )
1112 {
1113 req->handle = handle;
1114 req->flags = context->ContextFlags;
1115 req->suspend = 0;
1116 wine_server_set_reply( req, &ctx, sizeof(ctx) );
1117 ret = wine_server_call( req );
1118 }
1119 SERVER_END_REQ;
1120 if (ret == STATUS_PENDING)
1121 {
1122 LARGE_INTEGER timeout;
1123 timeout.QuadPart = -10000;
1124 NtDelayExecution( FALSE, &timeout );
1125 }
1126 else break;
1127 }
1128 NtResumeThread( handle, &dummy );
1129 }
1130 if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
1131 }
1132 if (ret) return ret;
1133 copy_context( context, &ctx, context->ContextFlags & ctx.ContextFlags );
1134 needed_flags &= ~ctx.ContextFlags;
1135 }
1136
1137 if (self)
1138 {
1139 if (needed_flags)
1140 {
1141 get_cpu_context( &ctx );
1142 copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
1143 }
1144 #ifdef __i386__
1145 /* update the cached version of the debug registers */
1146 if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
1147 {
1148 struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
1149 regs->dr0 = context->Dr0;
1150 regs->dr1 = context->Dr1;
1151 regs->dr2 = context->Dr2;
1152 regs->dr3 = context->Dr3;
1153 regs->dr6 = context->Dr6;
1154 regs->dr7 = context->Dr7;
1155 }
1156 #endif
1157 }
1158 return STATUS_SUCCESS;
1159 }
1160
1161
1162 /******************************************************************************
1163 * NtQueryInformationThread (NTDLL.@)
1164 * ZwQueryInformationThread (NTDLL.@)
1165 */
1166 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
1167 void *data, ULONG length, ULONG *ret_len )
1168 {
1169 NTSTATUS status;
1170
1171 switch(class)
1172 {
1173 case ThreadBasicInformation:
1174 {
1175 THREAD_BASIC_INFORMATION info;
1176
1177 SERVER_START_REQ( get_thread_info )
1178 {
1179 req->handle = handle;
1180 req->tid_in = 0;
1181 if (!(status = wine_server_call( req )))
1182 {
1183 info.ExitStatus = reply->exit_code;
1184 info.TebBaseAddress = reply->teb;
1185 info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
1186 info.ClientId.UniqueThread = ULongToHandle(reply->tid);
1187 info.AffinityMask = reply->affinity;
1188 info.Priority = reply->priority;
1189 info.BasePriority = reply->priority; /* FIXME */
1190 }
1191 }
1192 SERVER_END_REQ;
1193 if (status == STATUS_SUCCESS)
1194 {
1195 if (data) memcpy( data, &info, min( length, sizeof(info) ));
1196 if (ret_len) *ret_len = min( length, sizeof(info) );
1197 }
1198 }
1199 return status;
1200 case ThreadTimes:
1201 {
1202 KERNEL_USER_TIMES kusrt;
1203 /* We need to do a server call to get the creation time or exit time */
1204 /* This works on any thread */
1205 SERVER_START_REQ( get_thread_info )
1206 {
1207 req->handle = handle;
1208 req->tid_in = 0;
1209 status = wine_server_call( req );
1210 if (status == STATUS_SUCCESS)
1211 {
1212 kusrt.CreateTime.QuadPart = reply->creation_time;
1213 kusrt.ExitTime.QuadPart = reply->exit_time;
1214 }
1215 }
1216 SERVER_END_REQ;
1217 if (status == STATUS_SUCCESS)
1218 {
1219 /* We call times(2) for kernel time or user time */
1220 /* We can only (portably) do this for the current thread */
1221 if (handle == GetCurrentThread())
1222 {
1223 struct tms time_buf;
1224 long clocks_per_sec = sysconf(_SC_CLK_TCK);
1225
1226 times(&time_buf);
1227 kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
1228 kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
1229 }
1230 else
1231 {
1232 static BOOL reported = FALSE;
1233
1234 kusrt.KernelTime.QuadPart = 0;
1235 kusrt.UserTime.QuadPart = 0;
1236 if (reported)
1237 TRACE("Cannot get kerneltime or usertime of other threads\n");
1238 else
1239 {
1240 FIXME("Cannot get kerneltime or usertime of other threads\n");
1241 reported = TRUE;
1242 }
1243 }
1244 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
1245 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
1246 }
1247 }
1248 return status;
1249 case ThreadDescriptorTableEntry:
1250 {
1251 #ifdef __i386__
1252 THREAD_DESCRIPTOR_INFORMATION* tdi = data;
1253 if (length < sizeof(*tdi))
1254 status = STATUS_INFO_LENGTH_MISMATCH;
1255 else if (!(tdi->Selector & 4)) /* GDT selector */
1256 {
1257 unsigned sel = tdi->Selector & ~3; /* ignore RPL */
1258 status = STATUS_SUCCESS;
1259 if (!sel) /* null selector */
1260 memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
1261 else
1262 {
1263 tdi->Entry.BaseLow = 0;
1264 tdi->Entry.HighWord.Bits.BaseMid = 0;
1265 tdi->Entry.HighWord.Bits.BaseHi = 0;
1266 tdi->Entry.LimitLow = 0xffff;
1267 tdi->Entry.HighWord.Bits.LimitHi = 0xf;
1268 tdi->Entry.HighWord.Bits.Dpl = 3;
1269 tdi->Entry.HighWord.Bits.Sys = 0;
1270 tdi->Entry.HighWord.Bits.Pres = 1;
1271 tdi->Entry.HighWord.Bits.Granularity = 1;
1272 tdi->Entry.HighWord.Bits.Default_Big = 1;
1273 tdi->Entry.HighWord.Bits.Type = 0x12;
1274 /* it has to be one of the system GDT selectors */
1275 if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
1276 {
1277 if (sel == (wine_get_cs() & ~3))
1278 tdi->Entry.HighWord.Bits.Type |= 8; /* code segment */
1279 else status = STATUS_ACCESS_DENIED;
1280 }
1281 }
1282 }
1283 else
1284 {
1285 SERVER_START_REQ( get_selector_entry )
1286 {
1287 req->handle = handle;
1288 req->entry = tdi->Selector >> 3;
1289 status = wine_server_call( req );
1290 if (!status)
1291 {
1292 if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1293 status = STATUS_ACCESS_VIOLATION;
1294 else
1295 {
1296 wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1297 wine_ldt_set_limit( &tdi->Entry, reply->limit );
1298 wine_ldt_set_flags( &tdi->Entry, reply->flags );
1299 }
1300 }
1301 }
1302 SERVER_END_REQ;
1303 }
1304 if (status == STATUS_SUCCESS && ret_len)
1305 /* yes, that's a bit strange, but it's the way it is */
1306 *ret_len = sizeof(LDT_ENTRY);
1307 #else
1308 status = STATUS_NOT_IMPLEMENTED;
1309 #endif
1310 return status;
1311 }
1312 case ThreadAmILastThread:
1313 {
1314 SERVER_START_REQ(get_thread_info)
1315 {
1316 req->handle = handle;
1317 req->tid_in = 0;
1318 status = wine_server_call( req );
1319 if (status == STATUS_SUCCESS)
1320 {
1321 BOOLEAN last = reply->last;
1322 if (data) memcpy( data, &last, min( length, sizeof(last) ));
1323 if (ret_len) *ret_len = min( length, sizeof(last) );
1324 }
1325 }
1326 SERVER_END_REQ;
1327 return status;
1328 }
1329 case ThreadPriority:
1330 case ThreadBasePriority:
1331 case ThreadAffinityMask:
1332 case ThreadImpersonationToken:
1333 case ThreadEnableAlignmentFaultFixup:
1334 case ThreadEventPair_Reusable:
1335 case ThreadQuerySetWin32StartAddress:
1336 case ThreadZeroTlsCell:
1337 case ThreadPerformanceCount:
1338 case ThreadIdealProcessor:
1339 case ThreadPriorityBoost:
1340 case ThreadSetTlsArrayAddress:
1341 case ThreadIsIoPending:
1342 default:
1343 FIXME( "info class %d not supported yet\n", class );
1344 return STATUS_NOT_IMPLEMENTED;
1345 }
1346 }
1347
1348
1349 /******************************************************************************
1350 * NtSetInformationThread (NTDLL.@)
1351 * ZwSetInformationThread (NTDLL.@)
1352 */
1353 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1354 LPCVOID data, ULONG length )
1355 {
1356 NTSTATUS status;
1357 switch(class)
1358 {
1359 case ThreadZeroTlsCell:
1360 if (handle == GetCurrentThread())
1361 {
1362 LIST_ENTRY *entry;
1363 DWORD index;
1364
1365 if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1366 index = *(const DWORD *)data;
1367 if (index < TLS_MINIMUM_AVAILABLE)
1368 {
1369 RtlAcquirePebLock();
1370 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1371 {
1372 TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1373 teb->TlsSlots[index] = 0;
1374 }
1375 RtlReleasePebLock();
1376 }
1377 else
1378 {
1379 index -= TLS_MINIMUM_AVAILABLE;
1380 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1381 return STATUS_INVALID_PARAMETER;
1382 RtlAcquirePebLock();
1383 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1384 {
1385 TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1386 if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1387 }
1388 RtlReleasePebLock();
1389 }
1390 return STATUS_SUCCESS;
1391 }
1392 FIXME( "ZeroTlsCell not supported on other threads\n" );
1393 return STATUS_NOT_IMPLEMENTED;
1394
1395 case ThreadImpersonationToken:
1396 {
1397 const HANDLE *phToken = data;
1398 if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1399 TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1400 SERVER_START_REQ( set_thread_info )
1401 {
1402 req->handle = handle;
1403 req->token = *phToken;
1404 req->mask = SET_THREAD_INFO_TOKEN;
1405 status = wine_server_call( req );
1406 }
1407 SERVER_END_REQ;
1408 }
1409 return status;
1410 case ThreadBasePriority:
1411 {
1412 const DWORD *pprio = data;
1413 if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1414 SERVER_START_REQ( set_thread_info )
1415 {
1416 req->handle = handle;
1417 req->priority = *pprio;
1418 req->mask = SET_THREAD_INFO_PRIORITY;
1419 status = wine_server_call( req );
1420 }
1421 SERVER_END_REQ;
1422 }
1423 return status;
1424 case ThreadAffinityMask:
1425 {
1426 const DWORD *paff = data;
1427 if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1428 SERVER_START_REQ( set_thread_info )
1429 {
1430 req->handle = handle;
1431 req->affinity = *paff;
1432 req->mask = SET_THREAD_INFO_AFFINITY;
1433 status = wine_server_call( req );
1434 }
1435 SERVER_END_REQ;
1436 }
1437 return status;
1438 case ThreadBasicInformation:
1439 case ThreadTimes:
1440 case ThreadPriority:
1441 case ThreadDescriptorTableEntry:
1442 case ThreadEnableAlignmentFaultFixup:
1443 case ThreadEventPair_Reusable:
1444 case ThreadQuerySetWin32StartAddress:
1445 case ThreadPerformanceCount:
1446 case ThreadAmILastThread:
1447 case ThreadIdealProcessor:
1448 case ThreadPriorityBoost:
1449 case ThreadSetTlsArrayAddress:
1450 case ThreadIsIoPending:
1451 default:
1452 FIXME( "info class %d not supported yet\n", class );
1453 return STATUS_NOT_IMPLEMENTED;
1454 }
1455 }
1456
1457
1458 /**********************************************************************
1459 * NtCurrentTeb (NTDLL.@)
1460 */
1461 #if defined(__i386__) && defined(__GNUC__)
1462
1463 __ASM_GLOBAL_FUNC( NtCurrentTeb, ".byte 0x64\n\tmovl 0x18,%eax\n\tret" )
1464
1465 #elif defined(__i386__) && defined(_MSC_VER)
1466
1467 /* Nothing needs to be done. MS C "magically" exports the inline version from winnt.h */
1468
1469 #else
1470
1471 /**********************************************************************/
1472
1473 TEB * WINAPI NtCurrentTeb(void)
1474 {
1475 return pthread_functions.get_current_teb();
1476 }
1477
1478 #endif /* __i386__ */
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