4 * Copyright 1996 Alexandre Julliard
11 #include <sys/types.h>
12 #ifdef HAVE_SYS_MMAN_H
16 #include "wine/winbase16.h"
17 #include "wine/port.h"
23 #include "selectors.h"
27 #include "stackframe.h"
28 #include "builtin16.h"
29 #include "debugtools.h"
32 DEFAULT_DEBUG_CHANNEL(thread
);
34 /* TEB of the initial thread */
35 static TEB initial_teb
;
37 extern struct _PDB current_process
;
39 /***********************************************************************
42 BOOL
THREAD_IsWin16( TEB
*teb
)
44 return !teb
|| !(teb
->tibflags
& TEBF_WIN32
);
47 /***********************************************************************
50 * Convert a thread id to a TEB, making sure it is valid.
52 TEB
*THREAD_IdToTEB( DWORD id
)
56 if (!id
|| id
== GetCurrentThreadId()) return NtCurrentTeb();
58 SERVER_START_REQ( get_thread_info
)
61 req
->tid_in
= (void *)id
;
62 if (!SERVER_CALL()) ret
= req
->teb
;
68 /* Allow task handles to be used; convert to main thread */
71 TDB
*pTask
= TASK_GetPtr( id
);
72 if (pTask
) return pTask
->teb
;
74 SetLastError( ERROR_INVALID_PARAMETER
);
80 /***********************************************************************
83 * Initialization of a newly created TEB.
85 static BOOL
THREAD_InitTEB( TEB
*teb
)
87 teb
->except
= (void *)~0UL;
89 teb
->tibflags
= TEBF_WIN32
;
90 teb
->tls_ptr
= teb
->tls_array
;
91 teb
->exit_code
= STILL_ACTIVE
;
96 teb
->stack_top
= (void *)~0UL;
97 teb
->StaticUnicodeString
.MaximumLength
= sizeof(teb
->StaticUnicodeBuffer
);
98 teb
->StaticUnicodeString
.Buffer
= (PWSTR
)teb
->StaticUnicodeBuffer
;
99 teb
->teb_sel
= SELECTOR_AllocBlock( teb
, 0x1000, WINE_LDT_FLAGS_DATA
|WINE_LDT_FLAGS_32BIT
);
100 return (teb
->teb_sel
!= 0);
104 /***********************************************************************
107 * Free data structures associated with a thread.
108 * Must be called from the context of another thread.
110 static void CALLBACK
THREAD_FreeTEB( TEB
*teb
)
112 TRACE("(%p) called\n", teb
);
113 if (teb
->cleanup
) SERVICE_Delete( teb
->cleanup
);
115 /* Free the associated memory */
117 close( teb
->request_fd
);
118 close( teb
->reply_fd
);
119 close( teb
->wait_fd
[0] );
120 close( teb
->wait_fd
[1] );
121 if (teb
->stack_sel
) FreeSelector16( teb
->stack_sel
);
122 FreeSelector16( teb
->teb_sel
);
123 if (teb
->buffer
) munmap( (void *)teb
->buffer
, teb
->buffer_size
);
124 if (teb
->debug_info
) HeapFree( GetProcessHeap(), 0, teb
->debug_info
);
125 VirtualFree( teb
->stack_base
, 0, MEM_RELEASE
);
129 /***********************************************************************
132 * Allocate the stack of a thread.
134 TEB
*THREAD_InitStack( TEB
*teb
, DWORD stack_size
)
136 DWORD old_prot
, total_size
;
137 DWORD page_size
= getpagesize();
140 /* Allocate the stack */
142 if (stack_size
>= 16*1024*1024)
143 WARN("Thread stack size is %ld MB.\n",stack_size
/1024/1024);
145 /* if size is smaller than default, get stack size from parent */
146 if (stack_size
< 1024 * 1024)
149 stack_size
= 1024 * 1024; /* no parent */
151 stack_size
= ((char *)NtCurrentTeb()->stack_top
- (char *)NtCurrentTeb()->stack_base
152 - SIGNAL_STACK_SIZE
- 3 * page_size
);
155 /* FIXME: some Wine functions use a lot of stack, so we add 64Kb here */
156 stack_size
+= 64 * 1024;
158 /* Memory layout in allocated block:
161 * 1 page NOACCESS guard page
162 * SIGNAL_STACK_SIZE signal stack
163 * 1 page NOACCESS guard page
164 * 1 page PAGE_GUARD guard page
165 * stack_size normal stack
166 * 64Kb 16-bit stack (optional)
167 * 1 page TEB (except for initial thread)
170 stack_size
= (stack_size
+ (page_size
- 1)) & ~(page_size
- 1);
171 total_size
= stack_size
+ SIGNAL_STACK_SIZE
+ 3 * page_size
;
172 total_size
+= 0x10000; /* 16-bit stack */
173 if (!teb
) total_size
+= page_size
;
175 if (!(base
= VirtualAlloc( NULL
, total_size
, MEM_COMMIT
, PAGE_EXECUTE_READWRITE
)))
180 teb
= (TEB
*)((char *)base
+ total_size
- page_size
);
181 if (!THREAD_InitTEB( teb
))
183 VirtualFree( base
, 0, MEM_RELEASE
);
188 teb
->stack_low
= base
;
189 teb
->stack_base
= base
;
190 teb
->signal_stack
= (char *)base
+ page_size
;
191 teb
->stack_top
= (char *)base
+ 3 * page_size
+ SIGNAL_STACK_SIZE
+ stack_size
;
193 /* Setup guard pages */
195 VirtualProtect( base
, 1, PAGE_NOACCESS
, &old_prot
);
196 VirtualProtect( (char *)teb
->signal_stack
+ SIGNAL_STACK_SIZE
, 1, PAGE_NOACCESS
, &old_prot
);
197 VirtualProtect( (char *)teb
->signal_stack
+ SIGNAL_STACK_SIZE
+ page_size
, 1,
198 PAGE_EXECUTE_READWRITE
| PAGE_GUARD
, &old_prot
);
200 /* Allocate the 16-bit stack selector */
202 teb
->stack_sel
= SELECTOR_AllocBlock( teb
->stack_top
, 0x10000, WINE_LDT_FLAGS_DATA
);
203 if (!teb
->stack_sel
) goto error
;
204 teb
->cur_stack
= MAKESEGPTR( teb
->stack_sel
, 0x10000 - sizeof(STACK16FRAME
) );
209 THREAD_FreeTEB( teb
);
214 /***********************************************************************
215 * thread_errno_location
217 * Get the per-thread errno location.
219 static int *thread_errno_location(void)
221 return &NtCurrentTeb()->thread_errno
;
224 /***********************************************************************
225 * thread_h_errno_location
227 * Get the per-thread h_errno location.
229 static int *thread_h_errno_location(void)
231 return &NtCurrentTeb()->thread_h_errno
;
234 /***********************************************************************
237 * Setup the initial thread.
239 * NOTES: The first allocated TEB on NT is at 0x7ffde000.
241 void THREAD_Init(void)
243 if (!initial_teb
.self
) /* do it only once */
245 THREAD_InitTEB( &initial_teb
);
246 assert( initial_teb
.teb_sel
);
247 initial_teb
.process
= ¤t_process
;
248 SYSDEPS_SetCurThread( &initial_teb
);
249 wine_errno_location
= thread_errno_location
;
250 wine_h_errno_location
= thread_h_errno_location
;
254 DECL_GLOBAL_CONSTRUCTOR(thread_init
) { THREAD_Init(); }
257 /***********************************************************************
260 * Start execution of a newly created thread. Does not return.
262 static void THREAD_Start(void)
264 HANDLE cleanup_object
;
265 LPTHREAD_START_ROUTINE func
= (LPTHREAD_START_ROUTINE
)NtCurrentTeb()->entry_point
;
267 /* install cleanup handler */
268 if (DuplicateHandle( GetCurrentProcess(), GetCurrentThread(),
269 GetCurrentProcess(), &cleanup_object
,
270 0, FALSE
, DUPLICATE_SAME_ACCESS
))
271 NtCurrentTeb()->cleanup
= SERVICE_AddObject( cleanup_object
, (PAPCFUNC
)THREAD_FreeTEB
,
272 (ULONG_PTR
)NtCurrentTeb() );
274 PROCESS_CallUserSignalProc( USIG_THREAD_INIT
, 0 );
276 MODULE_DllThreadAttach( NULL
);
277 ExitThread( func( NtCurrentTeb()->entry_arg
) );
281 /***********************************************************************
282 * CreateThread (KERNEL32.@)
284 HANDLE WINAPI
CreateThread( SECURITY_ATTRIBUTES
*sa
, DWORD stack
,
285 LPTHREAD_START_ROUTINE start
, LPVOID param
,
286 DWORD flags
, LPDWORD id
)
293 if (pipe( request_pipe
) == -1)
295 SetLastError( ERROR_TOO_MANY_OPEN_FILES
);
298 fcntl( request_pipe
[1], F_SETFD
, 1 ); /* set close on exec flag */
299 wine_server_send_fd( request_pipe
[0] );
301 SERVER_START_REQ( new_thread
)
303 req
->suspend
= ((flags
& CREATE_SUSPENDED
) != 0);
304 req
->inherit
= (sa
&& (sa
->nLength
>=sizeof(*sa
)) && sa
->bInheritHandle
);
305 req
->request_fd
= request_pipe
[0];
306 if (!SERVER_CALL_ERR())
308 handle
= req
->handle
;
311 close( request_pipe
[0] );
315 if (!handle
|| !(teb
= THREAD_InitStack( NULL
, stack
)))
317 close( request_pipe
[1] );
321 teb
->process
= NtCurrentTeb()->process
;
323 teb
->request_fd
= request_pipe
[1];
324 teb
->entry_point
= start
;
325 teb
->entry_arg
= param
;
326 teb
->startup
= THREAD_Start
;
327 teb
->htask16
= GetCurrentTask();
329 if (id
) *id
= (DWORD
)tid
;
330 if (SYSDEPS_SpawnThread( teb
) == -1)
332 CloseHandle( handle
);
333 THREAD_FreeTEB( teb
);
339 /***********************************************************************
340 * CreateThread16 (KERNEL.441)
342 static DWORD CALLBACK
THREAD_StartThread16( LPVOID threadArgs
)
344 FARPROC16 start
= ((FARPROC16
*)threadArgs
)[0];
345 DWORD param
= ((DWORD
*)threadArgs
)[1];
346 HeapFree( GetProcessHeap(), 0, threadArgs
);
348 ((LPDWORD
)CURRENT_STACK16
)[-1] = param
;
349 return wine_call_to_16_long( start
, sizeof(DWORD
) );
351 HANDLE WINAPI
CreateThread16( SECURITY_ATTRIBUTES
*sa
, DWORD stack
,
352 FARPROC16 start
, SEGPTR param
,
353 DWORD flags
, LPDWORD id
)
355 DWORD
*threadArgs
= HeapAlloc( GetProcessHeap(), 0, 2*sizeof(DWORD
) );
356 if (!threadArgs
) return INVALID_HANDLE_VALUE
;
357 threadArgs
[0] = (DWORD
)start
;
358 threadArgs
[1] = (DWORD
)param
;
360 return CreateThread( sa
, stack
, THREAD_StartThread16
, threadArgs
, flags
, id
);
364 /***********************************************************************
365 * ExitThread [KERNEL32.215] Ends a thread
370 void WINAPI
ExitThread( DWORD code
) /* [in] Exit code for this thread */
373 SERVER_START_REQ( terminate_thread
)
375 /* send the exit code to the server */
376 req
->handle
= GetCurrentThread();
377 req
->exit_code
= code
;
385 MODULE_DllProcessDetach( TRUE
, (LPVOID
)1 );
390 MODULE_DllThreadDetach( NULL
);
391 if (!(NtCurrentTeb()->tibflags
& TEBF_WIN32
)) TASK_ExitTask();
392 SYSDEPS_ExitThread( code
);
397 /***********************************************************************
398 * SetThreadContext [KERNEL32.670] Sets context of thread.
404 BOOL WINAPI
SetThreadContext( HANDLE handle
, /* [in] Handle to thread with context */
405 const CONTEXT
*context
) /* [in] Address of context structure */
408 SERVER_START_VAR_REQ( set_thread_context
, sizeof(*context
) )
410 req
->handle
= handle
;
411 req
->flags
= context
->ContextFlags
;
412 memcpy( server_data_ptr(req
), context
, sizeof(*context
) );
413 ret
= !SERVER_CALL_ERR();
420 /***********************************************************************
421 * GetThreadContext [KERNEL32.@] Retrieves context of thread.
427 BOOL WINAPI
GetThreadContext( HANDLE handle
, /* [in] Handle to thread with context */
428 CONTEXT
*context
) /* [out] Address of context structure */
431 SERVER_START_VAR_REQ( get_thread_context
, sizeof(*context
) )
433 req
->handle
= handle
;
434 req
->flags
= context
->ContextFlags
;
435 memcpy( server_data_ptr(req
), context
, sizeof(*context
) );
436 if ((ret
= !SERVER_CALL_ERR()))
437 memcpy( context
, server_data_ptr(req
), sizeof(*context
) );
444 /**********************************************************************
445 * GetThreadPriority [KERNEL32.@] Returns priority for thread.
448 * Success: Thread's priority level.
449 * Failure: THREAD_PRIORITY_ERROR_RETURN
451 INT WINAPI
GetThreadPriority(
452 HANDLE hthread
) /* [in] Handle to thread */
454 INT ret
= THREAD_PRIORITY_ERROR_RETURN
;
455 SERVER_START_REQ( get_thread_info
)
457 req
->handle
= hthread
;
459 if (!SERVER_CALL_ERR()) ret
= req
->priority
;
466 /**********************************************************************
467 * SetThreadPriority [KERNEL32.@] Sets priority for thread.
473 BOOL WINAPI
SetThreadPriority(
474 HANDLE hthread
, /* [in] Handle to thread */
475 INT priority
) /* [in] Thread priority level */
478 SERVER_START_REQ( set_thread_info
)
480 req
->handle
= hthread
;
481 req
->priority
= priority
;
482 req
->mask
= SET_THREAD_INFO_PRIORITY
;
483 ret
= !SERVER_CALL_ERR();
490 /**********************************************************************
491 * GetThreadPriorityBoost [KERNEL32.877] Returns priority boost for thread.
493 * Always reports that priority boost is disabled.
499 BOOL WINAPI
GetThreadPriorityBoost(
500 HANDLE hthread
, /* [in] Handle to thread */
501 PBOOL pstate
) /* [out] pointer to var that receives the boost state */
503 if (pstate
) *pstate
= FALSE
;
508 /**********************************************************************
509 * SetThreadPriorityBoost [KERNEL32.893] Sets priority boost for thread.
511 * Priority boost is not implemented. Thsi function always returns
512 * FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
515 * Always returns FALSE to indicate a failure
517 BOOL WINAPI
SetThreadPriorityBoost(
518 HANDLE hthread
, /* [in] Handle to thread */
519 BOOL disable
) /* [in] TRUE to disable priority boost */
521 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
526 /**********************************************************************
527 * SetThreadAffinityMask (KERNEL32.669)
529 DWORD WINAPI
SetThreadAffinityMask( HANDLE hThread
, DWORD dwThreadAffinityMask
)
532 SERVER_START_REQ( set_thread_info
)
534 req
->handle
= hThread
;
535 req
->affinity
= dwThreadAffinityMask
;
536 req
->mask
= SET_THREAD_INFO_AFFINITY
;
537 ret
= !SERVER_CALL_ERR();
538 /* FIXME: should return previous value */
545 /**********************************************************************
546 * TerminateThread [KERNEL32.685] Terminates a thread
552 BOOL WINAPI
TerminateThread( HANDLE handle
, /* [in] Handle to thread */
553 DWORD exit_code
) /* [in] Exit code for thread */
555 NTSTATUS status
= NtTerminateThread( handle
, exit_code
);
556 if (status
) SetLastError( RtlNtStatusToDosError(status
) );
561 /**********************************************************************
562 * GetExitCodeThread (KERNEL32.@)
563 * GetExitCodeThread (WIN32S16.13)
565 * Gets termination status of thread.
571 BOOL WINAPI
GetExitCodeThread(
572 HANDLE hthread
, /* [in] Handle to thread */
573 LPDWORD exitcode
) /* [out] Address to receive termination status */
576 SERVER_START_REQ( get_thread_info
)
578 req
->handle
= hthread
;
580 ret
= !SERVER_CALL_ERR();
581 if (ret
&& exitcode
) *exitcode
= req
->exit_code
;
588 /**********************************************************************
589 * ResumeThread [KERNEL32.587] Resumes a thread.
591 * Decrements a thread's suspend count. When count is zero, the
592 * execution of the thread is resumed.
595 * Success: Previous suspend count
596 * Failure: 0xFFFFFFFF
599 DWORD WINAPI
ResumeThread(
600 HANDLE hthread
) /* [in] Identifies thread to restart */
602 DWORD ret
= 0xffffffff;
603 SERVER_START_REQ( resume_thread
)
605 req
->handle
= hthread
;
606 if (!SERVER_CALL_ERR()) ret
= req
->count
;
613 /**********************************************************************
614 * SuspendThread [KERNEL32.681] Suspends a thread.
617 * Success: Previous suspend count
618 * Failure: 0xFFFFFFFF
620 DWORD WINAPI
SuspendThread(
621 HANDLE hthread
) /* [in] Handle to the thread */
623 DWORD ret
= 0xffffffff;
624 SERVER_START_REQ( suspend_thread
)
626 req
->handle
= hthread
;
627 if (!SERVER_CALL_ERR()) ret
= req
->count
;
634 /***********************************************************************
635 * QueueUserAPC (KERNEL32.566)
637 DWORD WINAPI
QueueUserAPC( PAPCFUNC func
, HANDLE hthread
, ULONG_PTR data
)
640 SERVER_START_REQ( queue_apc
)
642 req
->handle
= hthread
;
645 req
->param
= (void *)data
;
646 ret
= !SERVER_CALL_ERR();
653 /**********************************************************************
654 * GetThreadTimes [KERNEL32.@] Obtains timing information.
657 * What are the fields where these values are stored?
663 BOOL WINAPI
GetThreadTimes(
664 HANDLE thread
, /* [in] Specifies the thread of interest */
665 LPFILETIME creationtime
, /* [out] When the thread was created */
666 LPFILETIME exittime
, /* [out] When the thread was destroyed */
667 LPFILETIME kerneltime
, /* [out] Time thread spent in kernel mode */
668 LPFILETIME usertime
) /* [out] Time thread spent in user mode */
670 FIXME("(0x%08x): stub\n",thread
);
671 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
676 /**********************************************************************
677 * VWin32_BoostThreadGroup [KERNEL.535]
679 VOID WINAPI
VWin32_BoostThreadGroup( DWORD threadId
, INT boost
)
681 FIXME("(0x%08lx,%d): stub\n", threadId
, boost
);
684 /**********************************************************************
685 * VWin32_BoostThreadStatic [KERNEL.536]
687 VOID WINAPI
VWin32_BoostThreadStatic( DWORD threadId
, INT boost
)
689 FIXME("(0x%08lx,%d): stub\n", threadId
, boost
);
693 /***********************************************************************
694 * GetThreadLocale (KERNEL32.@)
696 LCID WINAPI
GetThreadLocale(void)
698 LCID ret
= NtCurrentTeb()->CurrentLocale
;
699 if (!ret
) NtCurrentTeb()->CurrentLocale
= ret
= GetUserDefaultLCID();
704 /**********************************************************************
705 * SetThreadLocale [KERNEL32.671] Sets the calling threads current locale.
712 * check if lcid is a valid cp
714 BOOL WINAPI
SetThreadLocale(
715 LCID lcid
) /* [in] Locale identifier */
719 case LOCALE_SYSTEM_DEFAULT
:
720 lcid
= GetSystemDefaultLCID();
722 case LOCALE_USER_DEFAULT
:
724 lcid
= GetUserDefaultLCID();
727 NtCurrentTeb()->CurrentLocale
= lcid
;
732 /***********************************************************************
733 * GetCurrentThread [KERNEL32.@] Gets pseudohandle for current thread
736 * Pseudohandle for the current thread
738 #undef GetCurrentThread
739 HANDLE WINAPI
GetCurrentThread(void)
745 /***********************************************************************
746 * ProcessIdToSessionId (KERNEL32.@)
747 * This function is available on Terminal Server 4SP4 and Windows 2000
749 BOOL WINAPI
ProcessIdToSessionId( DWORD procid
, DWORD
*sessionid_ptr
)
751 /* According to MSDN, if the calling process is not in a terminal
752 * services environment, then the sessionid returned is zero.
758 /***********************************************************************
759 * SetThreadExecutionState (KERNEL32.@)
761 * Informs the system that activity is taking place for
762 * power management purposes.
764 EXECUTION_STATE WINAPI
SetThreadExecutionState(EXECUTION_STATE flags
)
766 FIXME("(%ld): stub\n", flags
);
773 /* void WINAPI SetLastError( DWORD error ); */
774 __ASM_GLOBAL_FUNC( SetLastError
,
775 "movl 4(%esp),%eax\n\t"
780 /* DWORD WINAPI GetLastError(void); */
781 __ASM_GLOBAL_FUNC( GetLastError
, ".byte 0x64\n\tmovl 0x60,%eax\n\tret" );
783 /* DWORD WINAPI GetCurrentProcessId(void) */
784 __ASM_GLOBAL_FUNC( GetCurrentProcessId
, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" );
786 /* DWORD WINAPI GetCurrentThreadId(void) */
787 __ASM_GLOBAL_FUNC( GetCurrentThreadId
, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" );
791 /**********************************************************************
792 * SetLastError (KERNEL.147)
793 * SetLastError (KERNEL32.@)
795 * Sets the last-error code.
797 void WINAPI
SetLastError( DWORD error
) /* [in] Per-thread error code */
799 NtCurrentTeb()->last_error
= error
;
802 /**********************************************************************
803 * GetLastError (KERNEL.10)
804 * GetLastError (KERNEL32.@)
805 * GetLastError (WIN32S16.10)
807 * Returns last-error code.
809 DWORD WINAPI
GetLastError(void)
811 return NtCurrentTeb()->last_error
;
814 /***********************************************************************
815 * GetCurrentProcessId (KERNEL.471)
816 * GetCurrentProcessId (KERNEL32.@)
818 * Returns process identifier.
820 DWORD WINAPI
GetCurrentProcessId(void)
822 return (DWORD
)NtCurrentTeb()->pid
;
825 /***********************************************************************
826 * GetCurrentThreadId (KERNEL.462)
827 * GetCurrentThreadId (KERNEL32.@)
829 * Returns thread identifier.
831 DWORD WINAPI
GetCurrentThreadId(void)
833 return (DWORD
)NtCurrentTeb()->tid
;
836 #endif /* __i386__ */