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push aea352fc3df615e3f4b48daf6f897ea93ad1fffd
[wine/hacks.git] / dlls / ntdll / thread.c
blobeaea02c4f9477ad8d28a1eeaa4c058a855a4d2a5
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 struct ntdll_thread_regs *thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
112
113 teb->Tib.ExceptionList = (void *)~0UL;
114 teb->Tib.StackBase = (void *)~0UL;
115 teb->Tib.Self = &teb->Tib;
116 teb->StaticUnicodeString.Buffer = teb->StaticUnicodeBuffer;
117 teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer);
118
119 if (!(thread_regs->fs = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS;
120 thread_data->request_fd = -1;
121 thread_data->reply_fd = -1;
122 thread_data->wait_fd[0] = -1;
123 thread_data->wait_fd[1] = -1;
124
125 return STATUS_SUCCESS;
126 }
127
128
129 /***********************************************************************
130 * fix_unicode_string
131 *
132 * Make sure the unicode string doesn't point beyond the end pointer
133 */
134 static inline void fix_unicode_string( UNICODE_STRING *str, const char *end_ptr )
135 {
136 if ((char *)str->Buffer >= end_ptr)
137 {
138 str->Length = str->MaximumLength = 0;
139 str->Buffer = NULL;
140 return;
141 }
142 if ((char *)str->Buffer + str->MaximumLength > end_ptr)
143 {
144 str->MaximumLength = (end_ptr - (char *)str->Buffer) & ~(sizeof(WCHAR) - 1);
145 }
146 if (str->Length >= str->MaximumLength)
147 {
148 if (str->MaximumLength >= sizeof(WCHAR))
149 str->Length = str->MaximumLength - sizeof(WCHAR);
150 else
151 str->Length = str->MaximumLength = 0;
152 }
153 }
154
155
156 /***********************************************************************
157 * init_user_process_params
158 *
159 * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server.
160 */
161 static NTSTATUS init_user_process_params( SIZE_T info_size, HANDLE *exe_file )
162 {
163 void *ptr;
164 SIZE_T env_size;
165 NTSTATUS status;
166 RTL_USER_PROCESS_PARAMETERS *params = NULL;
167
168 status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)&params, 0, &info_size,
169 MEM_COMMIT, PAGE_READWRITE );
170 if (status != STATUS_SUCCESS) return status;
171
172 params->AllocationSize = info_size;
173 NtCurrentTeb()->Peb->ProcessParameters = params;
174
175 SERVER_START_REQ( get_startup_info )
176 {
177 wine_server_set_reply( req, params, info_size );
178 if (!(status = wine_server_call( req )))
179 {
180 info_size = wine_server_reply_size( reply );
181 *exe_file = reply->exe_file;
182 params->hStdInput = reply->hstdin;
183 params->hStdOutput = reply->hstdout;
184 params->hStdError = reply->hstderr;
185 }
186 }
187 SERVER_END_REQ;
188 if (status != STATUS_SUCCESS) return status;
189
190 if (params->Size > info_size) params->Size = info_size;
191
192 /* make sure the strings are valid */
193 fix_unicode_string( &params->CurrentDirectory.DosPath, (char *)info_size );
194 fix_unicode_string( &params->DllPath, (char *)info_size );
195 fix_unicode_string( &params->ImagePathName, (char *)info_size );
196 fix_unicode_string( &params->CommandLine, (char *)info_size );
197 fix_unicode_string( &params->WindowTitle, (char *)info_size );
198 fix_unicode_string( &params->Desktop, (char *)info_size );
199 fix_unicode_string( &params->ShellInfo, (char *)info_size );
200 fix_unicode_string( &params->RuntimeInfo, (char *)info_size );
201
202 /* environment needs to be a separate memory block */
203 env_size = info_size - params->Size;
204 if (!env_size) env_size = 1;
205 ptr = NULL;
206 status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &env_size,
207 MEM_COMMIT, PAGE_READWRITE );
208 if (status != STATUS_SUCCESS) return status;
209 memcpy( ptr, (char *)params + params->Size, info_size - params->Size );
210 params->Environment = ptr;
211
212 RtlNormalizeProcessParams( params );
213 return status;
214 }
215
216
217 /***********************************************************************
218 * thread_init
219 *
220 * Setup the initial thread.
221 *
222 * NOTES: The first allocated TEB on NT is at 0x7ffde000.
223 */
224 HANDLE thread_init(void)
225 {
226 PEB *peb;
227 TEB *teb;
228 void *addr;
229 SIZE_T size, info_size;
230 HANDLE exe_file = 0;
231 LARGE_INTEGER now;
232 struct ntdll_thread_data *thread_data;
233 struct ntdll_thread_regs *thread_regs;
234 struct wine_pthread_thread_info thread_info;
235 static struct debug_info debug_info; /* debug info for initial thread */
236
237 virtual_init();
238
239 /* reserve space for shared user data */
240
241 addr = (void *)0x7ffe0000;
242 size = 0x10000;
243 NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE );
244 user_shared_data = addr;
245
246 /* allocate and initialize the PEB */
247
248 addr = NULL;
249 size = sizeof(*peb);
250 NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 1, &size,
251 MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
252 peb = addr;
253
254 peb->NumberOfProcessors = 1;
255 peb->ProcessParameters = &params;
256 peb->TlsBitmap = &tls_bitmap;
257 peb->TlsExpansionBitmap = &tls_expansion_bitmap;
258 peb->LdrData = &ldr;
259 params.CurrentDirectory.DosPath.Buffer = current_dir;
260 params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir);
261 params.wShowWindow = 1; /* SW_SHOWNORMAL */
262 RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 );
263 RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits,
264 sizeof(peb->TlsExpansionBitmapBits) * 8 );
265 InitializeListHead( &ldr.InLoadOrderModuleList );
266 InitializeListHead( &ldr.InMemoryOrderModuleList );
267 InitializeListHead( &ldr.InInitializationOrderModuleList );
268 InitializeListHead( &tls_links );
269
270 /* allocate and initialize the initial TEB */
271
272 sigstack_total_size = get_signal_stack_total_size();
273 while (1 << sigstack_zero_bits < sigstack_total_size) sigstack_zero_bits++;
274 assert( 1 << sigstack_zero_bits == sigstack_total_size ); /* must be a power of 2 */
275 assert( sigstack_total_size >= sizeof(TEB) + sizeof(struct startup_info) );
276 thread_info.teb_size = sigstack_total_size;
277
278 addr = NULL;
279 size = sigstack_total_size;
280 NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
281 &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE );
282 teb = addr;
283 teb->Peb = peb;
284 thread_info.teb_size = size;
285 init_teb( teb );
286 thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
287 thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
288 thread_data->debug_info = &debug_info;
289 InsertHeadList( &tls_links, &teb->TlsLinks );
290
291 thread_info.stack_base = NULL;
292 thread_info.stack_size = 0;
293 thread_info.teb_base = teb;
294 thread_info.teb_sel = thread_regs->fs;
295 wine_pthread_get_functions( &pthread_functions, sizeof(pthread_functions) );
296 pthread_functions.init_current_teb( &thread_info );
297 pthread_functions.init_thread( &thread_info );
298 virtual_init_threading();
299
300 debug_info.str_pos = debug_info.strings;
301 debug_info.out_pos = debug_info.output;
302 debug_init();
303
304 /* setup the server connection */
305 server_init_process();
306 info_size = server_init_thread( thread_info.pid, thread_info.tid, NULL );
307
308 /* create the process heap */
309 if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL )))
310 {
311 MESSAGE( "wine: failed to create the process heap\n" );
312 exit(1);
313 }
314
315 /* allocate user parameters */
316 if (info_size)
317 {
318 init_user_process_params( info_size, &exe_file );
319 }
320 else
321 {
322 /* This is wine specific: we have no parent (we're started from unix)
323 * so, create a simple console with bare handles to unix stdio
324 */
325 wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE, OBJ_INHERIT, &params.hStdInput );
326 wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
327 wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
328 }
329
330 /* initialize LDT locking */
331 wine_ldt_init_locking( ldt_lock, ldt_unlock );
332
333 /* initialize time values in user_shared_data */
334 NtQuerySystemTime( &now );
335 user_shared_data->SystemTime.LowPart = now.u.LowPart;
336 user_shared_data->SystemTime.High1Time = user_shared_data->SystemTime.High2Time = now.u.HighPart;
337 user_shared_data->u.TickCountQuad = (now.QuadPart - server_start_time) / 10000;
338 user_shared_data->u.TickCount.High2Time = user_shared_data->u.TickCount.High1Time;
339 user_shared_data->TickCountLowDeprecated = user_shared_data->u.TickCount.LowPart;
340 user_shared_data->TickCountMultiplier = 1 << 24;
341
342 return exe_file;
343 }
344
345 typedef LONG (WINAPI *PUNHANDLED_EXCEPTION_FILTER)(PEXCEPTION_POINTERS);
346 static PUNHANDLED_EXCEPTION_FILTER get_unhandled_exception_filter(void)
347 {
348 static PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter;
349 static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
350 UNICODE_STRING module_name;
351 ANSI_STRING func_name;
352 HMODULE kernel32_handle;
353
354 if (unhandled_exception_filter) return unhandled_exception_filter;
355
356 RtlInitUnicodeString(&module_name, kernel32W);
357 RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
358
359 if (LdrGetDllHandle( 0, 0, &module_name, &kernel32_handle ) == STATUS_SUCCESS)
360 LdrGetProcedureAddress( kernel32_handle, &func_name, 0,
361 (void **)&unhandled_exception_filter );
362
363 return unhandled_exception_filter;
364 }
365
366 #ifdef __i386__
367 /* wrapper for apps that don't declare the thread function correctly */
368 extern DWORD call_thread_entry_point( PRTL_THREAD_START_ROUTINE entry, void *arg );
369 __ASM_GLOBAL_FUNC(call_thread_entry_point,
370 "pushl %ebp\n\t"
371 "movl %esp,%ebp\n\t"
372 "subl $4,%esp\n\t"
373 "pushl 12(%ebp)\n\t"
374 "movl 8(%ebp),%eax\n\t"
375 "call *%eax\n\t"
376 "leave\n\t"
377 "ret" );
378 #else
379 static inline DWORD call_thread_entry_point( PRTL_THREAD_START_ROUTINE entry, void *arg )
380 {
381 LPTHREAD_START_ROUTINE func = (LPTHREAD_START_ROUTINE)entry;
382 return func( arg );
383 }
384 #endif
385
386 /***********************************************************************
387 * call_thread_func
388 *
389 * Hack to make things compatible with the thread procedures used by kernel32.CreateThread.
390 */
391 static void DECLSPEC_NORETURN call_thread_func( PRTL_THREAD_START_ROUTINE rtl_func, void *arg )
392 {
393 DWORD exit_code;
394 BOOL last;
395
396 MODULE_DllThreadAttach( NULL );
397
398 if (TRACE_ON(relay))
399 DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), rtl_func, arg );
400
401 exit_code = call_thread_entry_point( rtl_func, arg );
402
403 /* send the exit code to the server */
404 SERVER_START_REQ( terminate_thread )
405 {
406 req->handle = GetCurrentThread();
407 req->exit_code = exit_code;
408 wine_server_call( req );
409 last = reply->last;
410 }
411 SERVER_END_REQ;
412
413 if (last)
414 {
415 LdrShutdownProcess();
416 exit( exit_code );
417 }
418 else
419 {
420 LdrShutdownThread();
421 server_exit_thread( exit_code );
422 }
423 }
424
425
426 /***********************************************************************
427 * start_thread
428 *
429 * Startup routine for a newly created thread.
430 */
431 static void start_thread( struct wine_pthread_thread_info *info )
432 {
433 TEB *teb = info->teb_base;
434 struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
435 struct startup_info *startup_info = (struct startup_info *)info;
436 PRTL_THREAD_START_ROUTINE func = startup_info->entry_point;
437 void *arg = startup_info->entry_arg;
438 struct debug_info debug_info;
439 SIZE_T size, page_size = getpagesize();
440
441 debug_info.str_pos = debug_info.strings;
442 debug_info.out_pos = debug_info.output;
443 thread_data->debug_info = &debug_info;
444
445 pthread_functions.init_current_teb( info );
446 SIGNAL_Init();
447 server_init_thread( info->pid, info->tid, func );
448 pthread_functions.init_thread( info );
449
450 /* allocate a memory view for the stack */
451 size = info->stack_size;
452 teb->DeallocationStack = info->stack_base;
453 NtAllocateVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, 0,
454 &size, MEM_SYSTEM, PAGE_READWRITE );
455 /* limit is lower than base since the stack grows down */
456 teb->Tib.StackBase = (char *)info->stack_base + info->stack_size;
457 teb->Tib.StackLimit = (char *)info->stack_base + page_size;
458
459 /* setup the guard page */
460 size = page_size;
461 NtProtectVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, PAGE_NOACCESS, NULL );
462
463 pthread_functions.sigprocmask( SIG_UNBLOCK, &server_block_set, NULL );
464
465 RtlAcquirePebLock();
466 InsertHeadList( &tls_links, &teb->TlsLinks );
467 RtlReleasePebLock();
468
469 /* NOTE: Windows does not have an exception handler around the call to
470 * the thread attach. We do for ease of debugging */
471 if (get_unhandled_exception_filter())
472 {
473 __TRY
474 {
475 call_thread_func( func, arg );
476 }
477 __EXCEPT(get_unhandled_exception_filter())
478 {
479 NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
480 }
481 __ENDTRY
482 }
483 else
484 call_thread_func( func, arg );
485 }
486
487
488 /***********************************************************************
489 * RtlCreateUserThread (NTDLL.@)
490 */
491 NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr,
492 BOOLEAN suspended, PVOID stack_addr,
493 SIZE_T stack_reserve, SIZE_T stack_commit,
494 PRTL_THREAD_START_ROUTINE start, void *param,
495 HANDLE *handle_ptr, CLIENT_ID *id )
496 {
497 sigset_t sigset;
498 struct ntdll_thread_data *thread_data;
499 struct ntdll_thread_regs *thread_regs = NULL;
500 struct startup_info *info = NULL;
501 void *addr = NULL;
502 HANDLE handle = 0;
503 TEB *teb;
504 DWORD tid = 0;
505 int request_pipe[2];
506 NTSTATUS status;
507 SIZE_T size, page_size = getpagesize();
508
509 if (process != NtCurrentProcess())
510 {
511 apc_call_t call;
512 apc_result_t result;
513
514 call.create_thread.type = APC_CREATE_THREAD;
515 call.create_thread.func = start;
516 call.create_thread.arg = param;
517 call.create_thread.reserve = stack_reserve;
518 call.create_thread.commit = stack_commit;
519 call.create_thread.suspend = suspended;
520 status = NTDLL_queue_process_apc( process, &call, &result );
521 if (status != STATUS_SUCCESS) return status;
522
523 if (result.create_thread.status == STATUS_SUCCESS)
524 {
525 if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid);
526 if (handle_ptr) *handle_ptr = result.create_thread.handle;
527 else NtClose( result.create_thread.handle );
528 }
529 return result.create_thread.status;
530 }
531
532 if (pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES;
533 fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */
534 wine_server_send_fd( request_pipe[0] );
535
536 SERVER_START_REQ( new_thread )
537 {
538 req->access = THREAD_ALL_ACCESS;
539 req->attributes = 0; /* FIXME */
540 req->suspend = suspended;
541 req->request_fd = request_pipe[0];
542 if (!(status = wine_server_call( req )))
543 {
544 handle = reply->handle;
545 tid = reply->tid;
546 }
547 close( request_pipe[0] );
548 }
549 SERVER_END_REQ;
550
551 if (status)
552 {
553 close( request_pipe[1] );
554 return status;
555 }
556
557 pthread_functions.sigprocmask( SIG_BLOCK, &server_block_set, &sigset );
558
559 addr = NULL;
560 size = sigstack_total_size;
561 if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
562 &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
563 goto error;
564 teb = addr;
565 teb->Peb = NtCurrentTeb()->Peb;
566 info = (struct startup_info *)(teb + 1);
567 info->pthread_info.teb_size = size;
568 if ((status = init_teb( teb ))) goto error;
569
570 teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId());
571 teb->ClientId.UniqueThread = ULongToHandle(tid);
572
573 thread_data = (struct ntdll_thread_data *)teb->SystemReserved2;
574 thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1;
575 thread_data->request_fd = request_pipe[1];
576
577 info->pthread_info.teb_base = teb;
578 info->pthread_info.teb_sel = thread_regs->fs;
579
580 /* inherit debug registers from parent thread */
581 thread_regs->dr0 = ntdll_get_thread_regs()->dr0;
582 thread_regs->dr1 = ntdll_get_thread_regs()->dr1;
583 thread_regs->dr2 = ntdll_get_thread_regs()->dr2;
584 thread_regs->dr3 = ntdll_get_thread_regs()->dr3;
585 thread_regs->dr6 = ntdll_get_thread_regs()->dr6;
586 thread_regs->dr7 = ntdll_get_thread_regs()->dr7;
587
588 if (!stack_reserve || !stack_commit)
589 {
590 IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress );
591 if (!stack_reserve) stack_reserve = nt->OptionalHeader.SizeOfStackReserve;
592 if (!stack_commit) stack_commit = nt->OptionalHeader.SizeOfStackCommit;
593 }
594 if (stack_reserve < stack_commit) stack_reserve = stack_commit;
595 stack_reserve += page_size; /* for the guard page */
596 stack_reserve = (stack_reserve + 0xffff) & ~0xffff; /* round to 64K boundary */
597 if (stack_reserve < 1024 * 1024) stack_reserve = 1024 * 1024; /* Xlib needs a large stack */
598
599 info->pthread_info.stack_base = NULL;
600 info->pthread_info.stack_size = stack_reserve;
601 info->pthread_info.entry = start_thread;
602 info->entry_point = start;
603 info->entry_arg = param;
604
605 if (pthread_functions.create_thread( &info->pthread_info ) == -1)
606 {
607 status = STATUS_NO_MEMORY;
608 goto error;
609 }
610 pthread_functions.sigprocmask( SIG_SETMASK, &sigset, NULL );
611
612 if (id) id->UniqueThread = ULongToHandle(tid);
613 if (handle_ptr) *handle_ptr = handle;
614 else NtClose( handle );
615
616 return STATUS_SUCCESS;
617
618 error:
619 if (thread_regs) wine_ldt_free_fs( thread_regs->fs );
620 if (addr)
621 {
622 SIZE_T size = 0;
623 NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
624 }
625 if (handle) NtClose( handle );
626 pthread_functions.sigprocmask( SIG_SETMASK, &sigset, NULL );
627 close( request_pipe[1] );
628 return status;
629 }
630
631
632 /***********************************************************************
633 * RtlExitUserThread (NTDLL.@)
634 */
635 void WINAPI RtlExitUserThread( ULONG status )
636 {
637 LdrShutdownThread();
638 server_exit_thread( status );
639 }
640
641
642 /***********************************************************************
643 * NtOpenThread (NTDLL.@)
644 * ZwOpenThread (NTDLL.@)
645 */
646 NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access,
647 const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id )
648 {
649 NTSTATUS ret;
650
651 SERVER_START_REQ( open_thread )
652 {
653 req->tid = HandleToULong(id->UniqueThread);
654 req->access = access;
655 req->attributes = attr ? attr->Attributes : 0;
656 ret = wine_server_call( req );
657 *handle = reply->handle;
658 }
659 SERVER_END_REQ;
660 return ret;
661 }
662
663
664 /******************************************************************************
665 * NtSuspendThread (NTDLL.@)
666 * ZwSuspendThread (NTDLL.@)
667 */
668 NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count )
669 {
670 NTSTATUS ret;
671
672 SERVER_START_REQ( suspend_thread )
673 {
674 req->handle = handle;
675 if (!(ret = wine_server_call( req ))) *count = reply->count;
676 }
677 SERVER_END_REQ;
678 return ret;
679 }
680
681
682 /******************************************************************************
683 * NtResumeThread (NTDLL.@)
684 * ZwResumeThread (NTDLL.@)
685 */
686 NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count )
687 {
688 NTSTATUS ret;
689
690 SERVER_START_REQ( resume_thread )
691 {
692 req->handle = handle;
693 if (!(ret = wine_server_call( req ))) *count = reply->count;
694 }
695 SERVER_END_REQ;
696 return ret;
697 }
698
699
700 /******************************************************************************
701 * NtAlertResumeThread (NTDLL.@)
702 * ZwAlertResumeThread (NTDLL.@)
703 */
704 NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count )
705 {
706 FIXME( "stub: should alert thread %p\n", handle );
707 return NtResumeThread( handle, count );
708 }
709
710
711 /******************************************************************************
712 * NtAlertThread (NTDLL.@)
713 * ZwAlertThread (NTDLL.@)
714 */
715 NTSTATUS WINAPI NtAlertThread( HANDLE handle )
716 {
717 FIXME( "stub: %p\n", handle );
718 return STATUS_NOT_IMPLEMENTED;
719 }
720
721
722 /******************************************************************************
723 * NtTerminateThread (NTDLL.@)
724 * ZwTerminateThread (NTDLL.@)
725 */
726 NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
727 {
728 NTSTATUS ret;
729 BOOL self, last;
730
731 SERVER_START_REQ( terminate_thread )
732 {
733 req->handle = handle;
734 req->exit_code = exit_code;
735 ret = wine_server_call( req );
736 self = !ret && reply->self;
737 last = reply->last;
738 }
739 SERVER_END_REQ;
740
741 if (self)
742 {
743 if (last) exit( exit_code );
744 else server_abort_thread( exit_code );
745 }
746 return ret;
747 }
748
749
750 /******************************************************************************
751 * NtQueueApcThread (NTDLL.@)
752 */
753 NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1,
754 ULONG_PTR arg2, ULONG_PTR arg3 )
755 {
756 NTSTATUS ret;
757 SERVER_START_REQ( queue_apc )
758 {
759 req->thread = handle;
760 if (func)
761 {
762 req->call.type = APC_USER;
763 req->call.user.func = func;
764 req->call.user.args[0] = arg1;
765 req->call.user.args[1] = arg2;
766 req->call.user.args[2] = arg3;
767 }
768 else req->call.type = APC_NONE; /* wake up only */
769 ret = wine_server_call( req );
770 }
771 SERVER_END_REQ;
772 return ret;
773 }
774
775
776 /***********************************************************************
777 * NtSetContextThread (NTDLL.@)
778 * ZwSetContextThread (NTDLL.@)
779 */
780 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
781 {
782 NTSTATUS ret;
783 DWORD dummy, i;
784 BOOL self = FALSE;
785
786 #ifdef __i386__
787 /* on i386 debug registers always require a server call */
788 self = (handle == GetCurrentThread());
789 if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
790 {
791 struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
792 self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 &&
793 regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 &&
794 regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7);
795 }
796 #endif
797
798 if (!self)
799 {
800 SERVER_START_REQ( set_thread_context )
801 {
802 req->handle = handle;
803 req->flags = context->ContextFlags;
804 req->suspend = 0;
805 wine_server_add_data( req, context, sizeof(*context) );
806 ret = wine_server_call( req );
807 self = reply->self;
808 }
809 SERVER_END_REQ;
810
811 if (ret == STATUS_PENDING)
812 {
813 if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
814 {
815 for (i = 0; i < 100; i++)
816 {
817 SERVER_START_REQ( set_thread_context )
818 {
819 req->handle = handle;
820 req->flags = context->ContextFlags;
821 req->suspend = 0;
822 wine_server_add_data( req, context, sizeof(*context) );
823 ret = wine_server_call( req );
824 }
825 SERVER_END_REQ;
826 if (ret != STATUS_PENDING) break;
827 NtYieldExecution();
828 }
829 NtResumeThread( handle, &dummy );
830 }
831 if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
832 }
833
834 if (ret) return ret;
835 }
836
837 if (self) set_cpu_context( context );
838 return STATUS_SUCCESS;
839 }
840
841
842 /* copy a context structure according to the flags */
843 static inline void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
844 {
845 #ifdef __i386__
846 flags &= ~CONTEXT_i386; /* get rid of CPU id */
847 if (flags & CONTEXT_INTEGER)
848 {
849 to->Eax = from->Eax;
850 to->Ebx = from->Ebx;
851 to->Ecx = from->Ecx;
852 to->Edx = from->Edx;
853 to->Esi = from->Esi;
854 to->Edi = from->Edi;
855 }
856 if (flags & CONTEXT_CONTROL)
857 {
858 to->Ebp = from->Ebp;
859 to->Esp = from->Esp;
860 to->Eip = from->Eip;
861 to->SegCs = from->SegCs;
862 to->SegSs = from->SegSs;
863 to->EFlags = from->EFlags;
864 }
865 if (flags & CONTEXT_SEGMENTS)
866 {
867 to->SegDs = from->SegDs;
868 to->SegEs = from->SegEs;
869 to->SegFs = from->SegFs;
870 to->SegGs = from->SegGs;
871 }
872 if (flags & CONTEXT_DEBUG_REGISTERS)
873 {
874 to->Dr0 = from->Dr0;
875 to->Dr1 = from->Dr1;
876 to->Dr2 = from->Dr2;
877 to->Dr3 = from->Dr3;
878 to->Dr6 = from->Dr6;
879 to->Dr7 = from->Dr7;
880 }
881 if (flags & CONTEXT_FLOATING_POINT)
882 {
883 to->FloatSave = from->FloatSave;
884 }
885 #elif defined(__x86_64__)
886 flags &= ~CONTEXT_AMD64; /* get rid of CPU id */
887 if (flags & CONTEXT_CONTROL)
888 {
889 to->Rbp = from->Rbp;
890 to->Rip = from->Rip;
891 to->Rsp = from->Rsp;
892 to->SegCs = from->SegCs;
893 to->SegSs = from->SegSs;
894 to->EFlags = from->EFlags;
895 to->MxCsr = from->MxCsr;
896 }
897 if (flags & CONTEXT_INTEGER)
898 {
899 to->Rax = from->Rax;
900 to->Rcx = from->Rcx;
901 to->Rdx = from->Rdx;
902 to->Rbx = from->Rbx;
903 to->Rsi = from->Rsi;
904 to->Rdi = from->Rdi;
905 to->R8 = from->R8;
906 to->R9 = from->R9;
907 to->R10 = from->R10;
908 to->R11 = from->R11;
909 to->R12 = from->R12;
910 to->R13 = from->R13;
911 to->R14 = from->R14;
912 to->R15 = from->R15;
913 }
914 if (flags & CONTEXT_SEGMENTS)
915 {
916 to->SegDs = from->SegDs;
917 to->SegEs = from->SegEs;
918 to->SegFs = from->SegFs;
919 to->SegGs = from->SegGs;
920 }
921 if (flags & CONTEXT_FLOATING_POINT)
922 {
923 to->u.FltSave = from->u.FltSave;
924 }
925 if (flags & CONTEXT_DEBUG_REGISTERS)
926 {
927 to->Dr0 = from->Dr0;
928 to->Dr1 = from->Dr1;
929 to->Dr2 = from->Dr2;
930 to->Dr3 = from->Dr3;
931 to->Dr6 = from->Dr6;
932 to->Dr7 = from->Dr7;
933 }
934 #elif defined(__sparc__)
935 flags &= ~CONTEXT_SPARC; /* get rid of CPU id */
936 if (flags & CONTEXT_CONTROL)
937 {
938 to->psr = from->psr;
939 to->pc = from->pc;
940 to->npc = from->npc;
941 to->y = from->y;
942 to->wim = from->wim;
943 to->tbr = from->tbr;
944 }
945 if (flags & CONTEXT_INTEGER)
946 {
947 to->g0 = from->g0;
948 to->g1 = from->g1;
949 to->g2 = from->g2;
950 to->g3 = from->g3;
951 to->g4 = from->g4;
952 to->g5 = from->g5;
953 to->g6 = from->g6;
954 to->g7 = from->g7;
955 to->o0 = from->o0;
956 to->o1 = from->o1;
957 to->o2 = from->o2;
958 to->o3 = from->o3;
959 to->o4 = from->o4;
960 to->o5 = from->o5;
961 to->o6 = from->o6;
962 to->o7 = from->o7;
963 to->l0 = from->l0;
964 to->l1 = from->l1;
965 to->l2 = from->l2;
966 to->l3 = from->l3;
967 to->l4 = from->l4;
968 to->l5 = from->l5;
969 to->l6 = from->l6;
970 to->l7 = from->l7;
971 to->i0 = from->i0;
972 to->i1 = from->i1;
973 to->i2 = from->i2;
974 to->i3 = from->i3;
975 to->i4 = from->i4;
976 to->i5 = from->i5;
977 to->i6 = from->i6;
978 to->i7 = from->i7;
979 }
980 if (flags & CONTEXT_FLOATING_POINT)
981 {
982 /* FIXME */
983 }
984 #elif defined(__powerpc__)
985 /* Has no CPU id */
986 if (flags & CONTEXT_CONTROL)
987 {
988 to->Msr = from->Msr;
989 to->Ctr = from->Ctr;
990 to->Iar = from->Iar;
991 }
992 if (flags & CONTEXT_INTEGER)
993 {
994 to->Gpr0 = from->Gpr0;
995 to->Gpr1 = from->Gpr1;
996 to->Gpr2 = from->Gpr2;
997 to->Gpr3 = from->Gpr3;
998 to->Gpr4 = from->Gpr4;
999 to->Gpr5 = from->Gpr5;
1000 to->Gpr6 = from->Gpr6;
1001 to->Gpr7 = from->Gpr7;
1002 to->Gpr8 = from->Gpr8;
1003 to->Gpr9 = from->Gpr9;
1004 to->Gpr10 = from->Gpr10;
1005 to->Gpr11 = from->Gpr11;
1006 to->Gpr12 = from->Gpr12;
1007 to->Gpr13 = from->Gpr13;
1008 to->Gpr14 = from->Gpr14;
1009 to->Gpr15 = from->Gpr15;
1010 to->Gpr16 = from->Gpr16;
1011 to->Gpr17 = from->Gpr17;
1012 to->Gpr18 = from->Gpr18;
1013 to->Gpr19 = from->Gpr19;
1014 to->Gpr20 = from->Gpr20;
1015 to->Gpr21 = from->Gpr21;
1016 to->Gpr22 = from->Gpr22;
1017 to->Gpr23 = from->Gpr23;
1018 to->Gpr24 = from->Gpr24;
1019 to->Gpr25 = from->Gpr25;
1020 to->Gpr26 = from->Gpr26;
1021 to->Gpr27 = from->Gpr27;
1022 to->Gpr28 = from->Gpr28;
1023 to->Gpr29 = from->Gpr29;
1024 to->Gpr30 = from->Gpr30;
1025 to->Gpr31 = from->Gpr31;
1026 to->Xer = from->Xer;
1027 to->Cr = from->Cr;
1028 }
1029 if (flags & CONTEXT_FLOATING_POINT)
1030 {
1031 to->Fpr0 = from->Fpr0;
1032 to->Fpr1 = from->Fpr1;
1033 to->Fpr2 = from->Fpr2;
1034 to->Fpr3 = from->Fpr3;
1035 to->Fpr4 = from->Fpr4;
1036 to->Fpr5 = from->Fpr5;
1037 to->Fpr6 = from->Fpr6;
1038 to->Fpr7 = from->Fpr7;
1039 to->Fpr8 = from->Fpr8;
1040 to->Fpr9 = from->Fpr9;
1041 to->Fpr10 = from->Fpr10;
1042 to->Fpr11 = from->Fpr11;
1043 to->Fpr12 = from->Fpr12;
1044 to->Fpr13 = from->Fpr13;
1045 to->Fpr14 = from->Fpr14;
1046 to->Fpr15 = from->Fpr15;
1047 to->Fpr16 = from->Fpr16;
1048 to->Fpr17 = from->Fpr17;
1049 to->Fpr18 = from->Fpr18;
1050 to->Fpr19 = from->Fpr19;
1051 to->Fpr20 = from->Fpr20;
1052 to->Fpr21 = from->Fpr21;
1053 to->Fpr22 = from->Fpr22;
1054 to->Fpr23 = from->Fpr23;
1055 to->Fpr24 = from->Fpr24;
1056 to->Fpr25 = from->Fpr25;
1057 to->Fpr26 = from->Fpr26;
1058 to->Fpr27 = from->Fpr27;
1059 to->Fpr28 = from->Fpr28;
1060 to->Fpr29 = from->Fpr29;
1061 to->Fpr30 = from->Fpr30;
1062 to->Fpr31 = from->Fpr31;
1063 to->Fpscr = from->Fpscr;
1064 }
1065 #else
1066 #error You must implement context copying for your CPU
1067 #endif
1068 }
1069
1070
1071 /***********************************************************************
1072 * NtGetContextThread (NTDLL.@)
1073 * ZwGetContextThread (NTDLL.@)
1074 */
1075 NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
1076 {
1077 NTSTATUS ret;
1078 CONTEXT ctx;
1079 DWORD dummy, i;
1080 DWORD needed_flags = context->ContextFlags;
1081 BOOL self = (handle == GetCurrentThread());
1082
1083 #ifdef __i386__
1084 /* on i386 debug registers always require a server call */
1085 if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE;
1086 #endif
1087
1088 if (!self)
1089 {
1090 SERVER_START_REQ( get_thread_context )
1091 {
1092 req->handle = handle;
1093 req->flags = context->ContextFlags;
1094 req->suspend = 0;
1095 wine_server_set_reply( req, &ctx, sizeof(ctx) );
1096 ret = wine_server_call( req );
1097 self = reply->self;
1098 }
1099 SERVER_END_REQ;
1100
1101 if (ret == STATUS_PENDING)
1102 {
1103 if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS)
1104 {
1105 for (i = 0; i < 100; i++)
1106 {
1107 SERVER_START_REQ( get_thread_context )
1108 {
1109 req->handle = handle;
1110 req->flags = context->ContextFlags;
1111 req->suspend = 0;
1112 wine_server_set_reply( req, &ctx, sizeof(ctx) );
1113 ret = wine_server_call( req );
1114 }
1115 SERVER_END_REQ;
1116 if (ret != STATUS_PENDING) break;
1117 NtYieldExecution();
1118 }
1119 NtResumeThread( handle, &dummy );
1120 }
1121 if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED;
1122 }
1123 if (ret) return ret;
1124 copy_context( context, &ctx, context->ContextFlags & ctx.ContextFlags );
1125 needed_flags &= ~ctx.ContextFlags;
1126 }
1127
1128 if (self)
1129 {
1130 if (needed_flags)
1131 {
1132 get_cpu_context( &ctx );
1133 copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
1134 }
1135 #ifdef __i386__
1136 /* update the cached version of the debug registers */
1137 if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
1138 {
1139 struct ntdll_thread_regs * const regs = ntdll_get_thread_regs();
1140 regs->dr0 = context->Dr0;
1141 regs->dr1 = context->Dr1;
1142 regs->dr2 = context->Dr2;
1143 regs->dr3 = context->Dr3;
1144 regs->dr6 = context->Dr6;
1145 regs->dr7 = context->Dr7;
1146 }
1147 #endif
1148 }
1149 return STATUS_SUCCESS;
1150 }
1151
1152
1153 /******************************************************************************
1154 * NtQueryInformationThread (NTDLL.@)
1155 * ZwQueryInformationThread (NTDLL.@)
1156 */
1157 NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
1158 void *data, ULONG length, ULONG *ret_len )
1159 {
1160 NTSTATUS status;
1161
1162 switch(class)
1163 {
1164 case ThreadBasicInformation:
1165 {
1166 THREAD_BASIC_INFORMATION info;
1167
1168 SERVER_START_REQ( get_thread_info )
1169 {
1170 req->handle = handle;
1171 req->tid_in = 0;
1172 if (!(status = wine_server_call( req )))
1173 {
1174 info.ExitStatus = reply->exit_code;
1175 info.TebBaseAddress = reply->teb;
1176 info.ClientId.UniqueProcess = ULongToHandle(reply->pid);
1177 info.ClientId.UniqueThread = ULongToHandle(reply->tid);
1178 info.AffinityMask = reply->affinity;
1179 info.Priority = reply->priority;
1180 info.BasePriority = reply->priority; /* FIXME */
1181 }
1182 }
1183 SERVER_END_REQ;
1184 if (status == STATUS_SUCCESS)
1185 {
1186 if (data) memcpy( data, &info, min( length, sizeof(info) ));
1187 if (ret_len) *ret_len = min( length, sizeof(info) );
1188 }
1189 }
1190 return status;
1191 case ThreadTimes:
1192 {
1193 KERNEL_USER_TIMES kusrt;
1194 /* We need to do a server call to get the creation time or exit time */
1195 /* This works on any thread */
1196 SERVER_START_REQ( get_thread_info )
1197 {
1198 req->handle = handle;
1199 req->tid_in = 0;
1200 status = wine_server_call( req );
1201 if (status == STATUS_SUCCESS)
1202 {
1203 kusrt.CreateTime.QuadPart = reply->creation_time;
1204 kusrt.ExitTime.QuadPart = reply->exit_time;
1205 }
1206 }
1207 SERVER_END_REQ;
1208 if (status == STATUS_SUCCESS)
1209 {
1210 /* We call times(2) for kernel time or user time */
1211 /* We can only (portably) do this for the current thread */
1212 if (handle == GetCurrentThread())
1213 {
1214 struct tms time_buf;
1215 long clocks_per_sec = sysconf(_SC_CLK_TCK);
1216
1217 times(&time_buf);
1218 kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec;
1219 kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec;
1220 }
1221 else
1222 {
1223 kusrt.KernelTime.QuadPart = 0;
1224 kusrt.UserTime.QuadPart = 0;
1225 FIXME("Cannot get kerneltime or usertime of other threads\n");
1226 }
1227 if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
1228 if (ret_len) *ret_len = min( length, sizeof(kusrt) );
1229 }
1230 }
1231 return status;
1232 case ThreadDescriptorTableEntry:
1233 {
1234 #ifdef __i386__
1235 THREAD_DESCRIPTOR_INFORMATION* tdi = data;
1236 if (length < sizeof(*tdi))
1237 status = STATUS_INFO_LENGTH_MISMATCH;
1238 else if (!(tdi->Selector & 4)) /* GDT selector */
1239 {
1240 unsigned sel = tdi->Selector & ~3; /* ignore RPL */
1241 status = STATUS_SUCCESS;
1242 if (!sel) /* null selector */
1243 memset( &tdi->Entry, 0, sizeof(tdi->Entry) );
1244 else
1245 {
1246 tdi->Entry.BaseLow = 0;
1247 tdi->Entry.HighWord.Bits.BaseMid = 0;
1248 tdi->Entry.HighWord.Bits.BaseHi = 0;
1249 tdi->Entry.LimitLow = 0xffff;
1250 tdi->Entry.HighWord.Bits.LimitHi = 0xf;
1251 tdi->Entry.HighWord.Bits.Dpl = 3;
1252 tdi->Entry.HighWord.Bits.Sys = 0;
1253 tdi->Entry.HighWord.Bits.Pres = 1;
1254 tdi->Entry.HighWord.Bits.Granularity = 1;
1255 tdi->Entry.HighWord.Bits.Default_Big = 1;
1256 tdi->Entry.HighWord.Bits.Type = 0x12;
1257 /* it has to be one of the system GDT selectors */
1258 if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3))
1259 {
1260 if (sel == (wine_get_cs() & ~3))
1261 tdi->Entry.HighWord.Bits.Type |= 8; /* code segment */
1262 else status = STATUS_ACCESS_DENIED;
1263 }
1264 }
1265 }
1266 else
1267 {
1268 SERVER_START_REQ( get_selector_entry )
1269 {
1270 req->handle = handle;
1271 req->entry = tdi->Selector >> 3;
1272 status = wine_server_call( req );
1273 if (!status)
1274 {
1275 if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
1276 status = STATUS_ACCESS_VIOLATION;
1277 else
1278 {
1279 wine_ldt_set_base ( &tdi->Entry, (void *)reply->base );
1280 wine_ldt_set_limit( &tdi->Entry, reply->limit );
1281 wine_ldt_set_flags( &tdi->Entry, reply->flags );
1282 }
1283 }
1284 }
1285 SERVER_END_REQ;
1286 }
1287 if (status == STATUS_SUCCESS && ret_len)
1288 /* yes, that's a bit strange, but it's the way it is */
1289 *ret_len = sizeof(LDT_ENTRY);
1290 #else
1291 status = STATUS_NOT_IMPLEMENTED;
1292 #endif
1293 return status;
1294 }
1295 case ThreadAmILastThread:
1296 {
1297 SERVER_START_REQ(get_thread_info)
1298 {
1299 req->handle = handle;
1300 req->tid_in = 0;
1301 status = wine_server_call( req );
1302 if (status == STATUS_SUCCESS)
1303 {
1304 BOOLEAN last = reply->last;
1305 if (data) memcpy( data, &last, min( length, sizeof(last) ));
1306 if (ret_len) *ret_len = min( length, sizeof(last) );
1307 }
1308 }
1309 SERVER_END_REQ;
1310 return status;
1311 }
1312 case ThreadPriority:
1313 case ThreadBasePriority:
1314 case ThreadAffinityMask:
1315 case ThreadImpersonationToken:
1316 case ThreadEnableAlignmentFaultFixup:
1317 case ThreadEventPair_Reusable:
1318 case ThreadQuerySetWin32StartAddress:
1319 case ThreadZeroTlsCell:
1320 case ThreadPerformanceCount:
1321 case ThreadIdealProcessor:
1322 case ThreadPriorityBoost:
1323 case ThreadSetTlsArrayAddress:
1324 case ThreadIsIoPending:
1325 default:
1326 FIXME( "info class %d not supported yet\n", class );
1327 return STATUS_NOT_IMPLEMENTED;
1328 }
1329 }
1330
1331
1332 /******************************************************************************
1333 * NtSetInformationThread (NTDLL.@)
1334 * ZwSetInformationThread (NTDLL.@)
1335 */
1336 NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
1337 LPCVOID data, ULONG length )
1338 {
1339 NTSTATUS status;
1340 switch(class)
1341 {
1342 case ThreadZeroTlsCell:
1343 if (handle == GetCurrentThread())
1344 {
1345 LIST_ENTRY *entry;
1346 DWORD index;
1347
1348 if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1349 index = *(const DWORD *)data;
1350 if (index < TLS_MINIMUM_AVAILABLE)
1351 {
1352 RtlAcquirePebLock();
1353 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1354 {
1355 TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1356 teb->TlsSlots[index] = 0;
1357 }
1358 RtlReleasePebLock();
1359 }
1360 else
1361 {
1362 index -= TLS_MINIMUM_AVAILABLE;
1363 if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits))
1364 return STATUS_INVALID_PARAMETER;
1365 RtlAcquirePebLock();
1366 for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink)
1367 {
1368 TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks);
1369 if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0;
1370 }
1371 RtlReleasePebLock();
1372 }
1373 return STATUS_SUCCESS;
1374 }
1375 FIXME( "ZeroTlsCell not supported on other threads\n" );
1376 return STATUS_NOT_IMPLEMENTED;
1377
1378 case ThreadImpersonationToken:
1379 {
1380 const HANDLE *phToken = data;
1381 if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
1382 TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken );
1383 SERVER_START_REQ( set_thread_info )
1384 {
1385 req->handle = handle;
1386 req->token = *phToken;
1387 req->mask = SET_THREAD_INFO_TOKEN;
1388 status = wine_server_call( req );
1389 }
1390 SERVER_END_REQ;
1391 }
1392 return status;
1393 case ThreadBasePriority:
1394 {
1395 const DWORD *pprio = data;
1396 if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1397 SERVER_START_REQ( set_thread_info )
1398 {
1399 req->handle = handle;
1400 req->priority = *pprio;
1401 req->mask = SET_THREAD_INFO_PRIORITY;
1402 status = wine_server_call( req );
1403 }
1404 SERVER_END_REQ;
1405 }
1406 return status;
1407 case ThreadAffinityMask:
1408 {
1409 const DWORD *paff = data;
1410 if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
1411 SERVER_START_REQ( set_thread_info )
1412 {
1413 req->handle = handle;
1414 req->affinity = *paff;
1415 req->mask = SET_THREAD_INFO_AFFINITY;
1416 status = wine_server_call( req );
1417 }
1418 SERVER_END_REQ;
1419 }
1420 return status;
1421 case ThreadBasicInformation:
1422 case ThreadTimes:
1423 case ThreadPriority:
1424 case ThreadDescriptorTableEntry:
1425 case ThreadEnableAlignmentFaultFixup:
1426 case ThreadEventPair_Reusable:
1427 case ThreadQuerySetWin32StartAddress:
1428 case ThreadPerformanceCount:
1429 case ThreadAmILastThread:
1430 case ThreadIdealProcessor:
1431 case ThreadPriorityBoost:
1432 case ThreadSetTlsArrayAddress:
1433 case ThreadIsIoPending:
1434 default:
1435 FIXME( "info class %d not supported yet\n", class );
1436 return STATUS_NOT_IMPLEMENTED;
1437 }
1438 }
1439
1440
1441 /**********************************************************************
1442 * NtCurrentTeb (NTDLL.@)
1443 */
1444 #if defined(__i386__) && defined(__GNUC__)
1445
1446 __ASM_GLOBAL_FUNC( NtCurrentTeb, ".byte 0x64\n\tmovl 0x18,%eax\n\tret" )
1447
1448 #elif defined(__i386__) && defined(_MSC_VER)
1449
1450 /* Nothing needs to be done. MS C "magically" exports the inline version from winnt.h */
1451
1452 #else
1453
1454 /**********************************************************************/
1455
1456 TEB * WINAPI NtCurrentTeb(void)
1457 {
1458 return pthread_functions.get_current_teb();
1459 }
1460
1461 #endif /* __i386__ */
useful hacks and other patches not (yet) suitable for mainline