4 * Copyright 1996 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "wine/port.h"
26 #include <sys/types.h>
27 #ifdef HAVE_SYS_MMAN_H
30 #ifdef HAVE_SYS_TIMES_H
31 #include <sys/times.h>
36 #include "wine/winbase16.h"
41 #include "selectors.h"
43 #include "wine/server.h"
44 #include "stackframe.h"
45 #include "wine/debug.h"
48 WINE_DEFAULT_DEBUG_CHANNEL(thread
);
49 WINE_DECLARE_DEBUG_CHANNEL(relay
);
51 /* TEB of the initial thread */
52 static TEB initial_teb
;
54 extern struct _PDB current_process
;
56 /***********************************************************************
59 * Convert a thread id to a TEB, making sure it is valid.
61 TEB
*THREAD_IdToTEB( DWORD id
)
65 if (!id
|| id
== GetCurrentThreadId()) return NtCurrentTeb();
67 SERVER_START_REQ( get_thread_info
)
71 if (!wine_server_call( req
)) ret
= reply
->teb
;
77 /* Allow task handles to be used; convert to main thread */
80 TDB
*pTask
= TASK_GetPtr( id
);
81 if (pTask
) return pTask
->teb
;
83 SetLastError( ERROR_INVALID_PARAMETER
);
89 /***********************************************************************
92 * Initialization of a newly created TEB.
94 static BOOL
THREAD_InitTEB( TEB
*teb
)
96 teb
->except
= (void *)~0UL;
98 teb
->tibflags
= TEBF_WIN32
;
99 teb
->exit_code
= STILL_ACTIVE
;
100 teb
->request_fd
= -1;
102 teb
->wait_fd
[0] = -1;
103 teb
->wait_fd
[1] = -1;
104 teb
->stack_top
= (void *)~0UL;
105 teb
->StaticUnicodeString
.MaximumLength
= sizeof(teb
->StaticUnicodeBuffer
);
106 teb
->StaticUnicodeString
.Buffer
= (PWSTR
)teb
->StaticUnicodeBuffer
;
107 teb
->teb_sel
= wine_ldt_alloc_fs();
108 return (teb
->teb_sel
!= 0);
112 /***********************************************************************
115 * Free data structures associated with a thread.
116 * Must be called from the context of another thread.
118 static void THREAD_FreeTEB( TEB
*teb
)
120 TRACE("(%p) called\n", teb
);
121 /* Free the associated memory */
122 wine_ldt_free_fs( teb
->teb_sel
);
123 VirtualFree( teb
->stack_base
, 0, MEM_RELEASE
);
127 /***********************************************************************
130 * Allocate the stack of a thread.
132 TEB
*THREAD_InitStack( TEB
*teb
, DWORD stack_size
)
134 DWORD old_prot
, total_size
;
135 DWORD page_size
= getpagesize();
138 /* Allocate the stack */
140 if (stack_size
>= 16*1024*1024)
141 WARN("Thread stack size is %ld MB.\n",stack_size
/1024/1024);
143 /* if size is smaller than default, get stack size from parent */
144 if (stack_size
< 1024 * 1024)
147 stack_size
= 1024 * 1024; /* no parent */
149 stack_size
= ((char *)NtCurrentTeb()->stack_top
- (char *)NtCurrentTeb()->stack_base
150 - SIGNAL_STACK_SIZE
- 3 * page_size
);
153 /* FIXME: some Wine functions use a lot of stack, so we add 64Kb here */
154 stack_size
+= 64 * 1024;
156 /* Memory layout in allocated block:
159 * 1 page NOACCESS guard page
160 * SIGNAL_STACK_SIZE signal stack
161 * 1 page NOACCESS guard page
162 * 1 page PAGE_GUARD guard page
163 * stack_size normal stack
164 * 1 page TEB (except for initial thread)
165 * 1 page debug info (except for initial thread)
168 stack_size
= (stack_size
+ (page_size
- 1)) & ~(page_size
- 1);
169 total_size
= stack_size
+ SIGNAL_STACK_SIZE
+ 3 * page_size
;
170 if (!teb
) total_size
+= 2 * page_size
;
172 if (!(base
= VirtualAlloc( NULL
, total_size
, MEM_COMMIT
, PAGE_EXECUTE_READWRITE
)))
177 teb
= (TEB
*)((char *)base
+ total_size
- 2 * page_size
);
178 if (!THREAD_InitTEB( teb
))
180 VirtualFree( base
, 0, MEM_RELEASE
);
183 teb
->debug_info
= (char *)teb
+ page_size
;
186 teb
->stack_low
= base
;
187 teb
->stack_base
= base
;
188 teb
->signal_stack
= (char *)base
+ page_size
;
189 teb
->stack_top
= (char *)base
+ 3 * page_size
+ SIGNAL_STACK_SIZE
+ stack_size
;
191 /* Setup guard pages */
193 VirtualProtect( base
, 1, PAGE_NOACCESS
, &old_prot
);
194 VirtualProtect( (char *)teb
->signal_stack
+ SIGNAL_STACK_SIZE
, 1, PAGE_NOACCESS
, &old_prot
);
195 VirtualProtect( (char *)teb
->signal_stack
+ SIGNAL_STACK_SIZE
+ page_size
, 1,
196 PAGE_EXECUTE_READWRITE
| PAGE_GUARD
, &old_prot
);
201 /***********************************************************************
204 * Setup the initial thread.
206 * NOTES: The first allocated TEB on NT is at 0x7ffde000.
208 void THREAD_Init(void)
210 if (!initial_teb
.self
) /* do it only once */
212 THREAD_InitTEB( &initial_teb
);
213 assert( initial_teb
.teb_sel
);
214 initial_teb
.Peb
= (PEB
*)¤t_process
; /* FIXME */
215 SYSDEPS_SetCurThread( &initial_teb
);
220 DECL_GLOBAL_CONSTRUCTOR(thread_init
) { THREAD_Init(); }
223 /***********************************************************************
226 * Start execution of a newly created thread. Does not return.
228 static void THREAD_Start(void)
230 LPTHREAD_START_ROUTINE func
= (LPTHREAD_START_ROUTINE
)NtCurrentTeb()->entry_point
;
233 DPRINTF("%04lx:Starting thread (entryproc=%p)\n", GetCurrentThreadId(), func
);
235 MODULE_DllThreadAttach( NULL
);
236 ExitThread( func( NtCurrentTeb()->entry_arg
) );
240 /***********************************************************************
241 * CreateThread (KERNEL32.@)
243 HANDLE WINAPI
CreateThread( SECURITY_ATTRIBUTES
*sa
, SIZE_T stack
,
244 LPTHREAD_START_ROUTINE start
, LPVOID param
,
245 DWORD flags
, LPDWORD id
)
252 if (pipe( request_pipe
) == -1)
254 SetLastError( ERROR_TOO_MANY_OPEN_FILES
);
257 fcntl( request_pipe
[1], F_SETFD
, 1 ); /* set close on exec flag */
258 wine_server_send_fd( request_pipe
[0] );
260 SERVER_START_REQ( new_thread
)
262 req
->suspend
= ((flags
& CREATE_SUSPENDED
) != 0);
263 req
->inherit
= (sa
&& (sa
->nLength
>=sizeof(*sa
)) && sa
->bInheritHandle
);
264 req
->request_fd
= request_pipe
[0];
265 if (!wine_server_call_err( req
))
267 handle
= reply
->handle
;
270 close( request_pipe
[0] );
274 if (!handle
|| !(teb
= THREAD_InitStack( NULL
, stack
)))
276 close( request_pipe
[1] );
280 teb
->Peb
= NtCurrentTeb()->Peb
;
282 teb
->request_fd
= request_pipe
[1];
283 teb
->entry_point
= start
;
284 teb
->entry_arg
= param
;
285 teb
->startup
= THREAD_Start
;
286 teb
->htask16
= GetCurrentTask();
289 if (SYSDEPS_SpawnThread( teb
) == -1)
291 CloseHandle( handle
);
292 close( request_pipe
[1] );
293 THREAD_FreeTEB( teb
);
299 /***********************************************************************
300 * ExitThread [KERNEL32.@] Ends a thread
305 void WINAPI
ExitThread( DWORD code
) /* [in] Exit code for this thread */
308 SERVER_START_REQ( terminate_thread
)
310 /* send the exit code to the server */
311 req
->handle
= GetCurrentThread();
312 req
->exit_code
= code
;
313 wine_server_call( req
);
320 LdrShutdownProcess();
326 if (!(NtCurrentTeb()->tibflags
& TEBF_WIN32
)) TASK_ExitTask();
327 SYSDEPS_ExitThread( code
);
331 /***********************************************************************
332 * OpenThread Retrieves a handle to a thread from its thread id
337 HANDLE WINAPI
OpenThread( DWORD dwDesiredAccess
, BOOL bInheritHandle
, DWORD dwThreadId
)
340 SERVER_START_REQ( open_thread
)
342 req
->tid
= dwThreadId
;
343 req
->access
= dwDesiredAccess
;
344 req
->inherit
= bInheritHandle
;
345 if (!wine_server_call_err( req
)) ret
= reply
->handle
;
351 /***********************************************************************
352 * SetThreadContext [KERNEL32.@] Sets context of thread.
358 BOOL WINAPI
SetThreadContext( HANDLE handle
, /* [in] Handle to thread with context */
359 const CONTEXT
*context
) /* [in] Address of context structure */
361 NTSTATUS status
= NtSetContextThread( handle
, context
);
362 if (status
) SetLastError( RtlNtStatusToDosError(status
) );
367 /***********************************************************************
368 * GetThreadContext [KERNEL32.@] Retrieves context of thread.
374 BOOL WINAPI
GetThreadContext( HANDLE handle
, /* [in] Handle to thread with context */
375 CONTEXT
*context
) /* [out] Address of context structure */
377 NTSTATUS status
= NtGetContextThread( handle
, context
);
378 if (status
) SetLastError( RtlNtStatusToDosError(status
) );
383 /**********************************************************************
384 * GetThreadPriority [KERNEL32.@] Returns priority for thread.
387 * Success: Thread's priority level.
388 * Failure: THREAD_PRIORITY_ERROR_RETURN
390 INT WINAPI
GetThreadPriority(
391 HANDLE hthread
) /* [in] Handle to thread */
393 INT ret
= THREAD_PRIORITY_ERROR_RETURN
;
394 SERVER_START_REQ( get_thread_info
)
396 req
->handle
= hthread
;
398 if (!wine_server_call_err( req
)) ret
= reply
->priority
;
405 /**********************************************************************
406 * SetThreadPriority [KERNEL32.@] Sets priority for thread.
412 BOOL WINAPI
SetThreadPriority(
413 HANDLE hthread
, /* [in] Handle to thread */
414 INT priority
) /* [in] Thread priority level */
417 SERVER_START_REQ( set_thread_info
)
419 req
->handle
= hthread
;
420 req
->priority
= priority
;
421 req
->mask
= SET_THREAD_INFO_PRIORITY
;
422 ret
= !wine_server_call_err( req
);
429 /**********************************************************************
430 * GetThreadPriorityBoost [KERNEL32.@] Returns priority boost for thread.
432 * Always reports that priority boost is disabled.
438 BOOL WINAPI
GetThreadPriorityBoost(
439 HANDLE hthread
, /* [in] Handle to thread */
440 PBOOL pstate
) /* [out] pointer to var that receives the boost state */
442 if (pstate
) *pstate
= FALSE
;
447 /**********************************************************************
448 * SetThreadPriorityBoost [KERNEL32.@] Sets priority boost for thread.
450 * Priority boost is not implemented. Thsi function always returns
451 * FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
454 * Always returns FALSE to indicate a failure
456 BOOL WINAPI
SetThreadPriorityBoost(
457 HANDLE hthread
, /* [in] Handle to thread */
458 BOOL disable
) /* [in] TRUE to disable priority boost */
460 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
465 /**********************************************************************
466 * SetThreadAffinityMask (KERNEL32.@)
468 DWORD WINAPI
SetThreadAffinityMask( HANDLE hThread
, DWORD dwThreadAffinityMask
)
471 SERVER_START_REQ( set_thread_info
)
473 req
->handle
= hThread
;
474 req
->affinity
= dwThreadAffinityMask
;
475 req
->mask
= SET_THREAD_INFO_AFFINITY
;
476 ret
= !wine_server_call_err( req
);
477 /* FIXME: should return previous value */
483 /**********************************************************************
484 * SetThreadIdealProcessor [KERNEL32.@] Obtains timing information.
487 * Success: Value of last call to SetThreadIdealProcessor
490 DWORD WINAPI
SetThreadIdealProcessor(
491 HANDLE hThread
, /* [in] Specifies the thread of interest */
492 DWORD dwIdealProcessor
) /* [in] Specifies the new preferred processor */
494 FIXME("(%p): stub\n",hThread
);
495 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
499 /**********************************************************************
500 * TerminateThread [KERNEL32.@] Terminates a thread
506 BOOL WINAPI
TerminateThread( HANDLE handle
, /* [in] Handle to thread */
507 DWORD exit_code
) /* [in] Exit code for thread */
509 NTSTATUS status
= NtTerminateThread( handle
, exit_code
);
510 if (status
) SetLastError( RtlNtStatusToDosError(status
) );
515 /**********************************************************************
516 * GetExitCodeThread (KERNEL32.@)
518 * Gets termination status of thread.
524 BOOL WINAPI
GetExitCodeThread(
525 HANDLE hthread
, /* [in] Handle to thread */
526 LPDWORD exitcode
) /* [out] Address to receive termination status */
529 SERVER_START_REQ( get_thread_info
)
531 req
->handle
= hthread
;
533 ret
= !wine_server_call_err( req
);
534 if (ret
&& exitcode
) *exitcode
= reply
->exit_code
;
541 /**********************************************************************
542 * ResumeThread [KERNEL32.@] Resumes a thread.
544 * Decrements a thread's suspend count. When count is zero, the
545 * execution of the thread is resumed.
548 * Success: Previous suspend count
549 * Failure: 0xFFFFFFFF
552 DWORD WINAPI
ResumeThread( HANDLE hthread
) /* [in] Identifies thread to restart */
555 NTSTATUS status
= NtResumeThread( hthread
, &ret
);
560 SetLastError( RtlNtStatusToDosError(status
) );
566 /**********************************************************************
567 * SuspendThread [KERNEL32.@] Suspends a thread.
570 * Success: Previous suspend count
571 * Failure: 0xFFFFFFFF
573 DWORD WINAPI
SuspendThread( HANDLE hthread
) /* [in] Handle to the thread */
576 NTSTATUS status
= NtSuspendThread( hthread
, &ret
);
581 SetLastError( RtlNtStatusToDosError(status
) );
587 /* callback for QueueUserAPC */
588 static void CALLBACK
call_user_apc( ULONG_PTR arg1
, ULONG_PTR arg2
, ULONG_PTR arg3
)
590 PAPCFUNC func
= (PAPCFUNC
)arg1
;
594 /***********************************************************************
595 * QueueUserAPC (KERNEL32.@)
597 DWORD WINAPI
QueueUserAPC( PAPCFUNC func
, HANDLE hthread
, ULONG_PTR data
)
599 NTSTATUS status
= NtQueueApcThread( hthread
, call_user_apc
, (ULONG_PTR
)func
, data
, 0 );
601 if (status
) SetLastError( RtlNtStatusToDosError(status
) );
606 /**********************************************************************
607 * GetThreadTimes [KERNEL32.@] Obtains timing information.
613 BOOL WINAPI
GetThreadTimes(
614 HANDLE thread
, /* [in] Specifies the thread of interest */
615 LPFILETIME creationtime
, /* [out] When the thread was created */
616 LPFILETIME exittime
, /* [out] When the thread was destroyed */
617 LPFILETIME kerneltime
, /* [out] Time thread spent in kernel mode */
618 LPFILETIME usertime
) /* [out] Time thread spent in user mode */
622 if (creationtime
|| exittime
)
624 /* We need to do a server call to get the creation time or exit time */
625 /* This works on any thread */
627 SERVER_START_REQ( get_thread_info
)
629 req
->handle
= thread
;
631 if ((ret
= !wine_server_call_err( req
)))
634 RtlSecondsSince1970ToTime( reply
->creation_time
, (LARGE_INTEGER
*)creationtime
);
636 RtlSecondsSince1970ToTime( reply
->exit_time
, (LARGE_INTEGER
*)exittime
);
641 if (ret
&& (kerneltime
|| usertime
))
643 /* We call times(2) for kernel time or user time */
644 /* We can only (portably) do this for the current thread */
645 if (thread
== GetCurrentThread())
649 long clocks_per_sec
= sysconf(_SC_CLK_TCK
);
654 time
= (ULONGLONG
)time_buf
.tms_stime
* 10000000 / clocks_per_sec
;
655 kerneltime
->dwHighDateTime
= time
>> 32;
656 kerneltime
->dwLowDateTime
= (DWORD
)time
;
660 time
= (ULONGLONG
)time_buf
.tms_utime
* 10000000 / clocks_per_sec
;
661 usertime
->dwHighDateTime
= time
>> 32;
662 usertime
->dwLowDateTime
= (DWORD
)time
;
667 if (kerneltime
) kerneltime
->dwHighDateTime
= kerneltime
->dwLowDateTime
= 0;
668 if (usertime
) usertime
->dwHighDateTime
= usertime
->dwLowDateTime
= 0;
669 FIXME("Cannot get kerneltime or usertime of other threads\n");
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 * GetCurrentThread [KERNEL32.@] Gets pseudohandle for current thread
697 * Pseudohandle for the current thread
699 #undef GetCurrentThread
700 HANDLE WINAPI
GetCurrentThread(void)
702 return (HANDLE
)0xfffffffe;
706 /***********************************************************************
707 * ProcessIdToSessionId (KERNEL32.@)
708 * This function is available on Terminal Server 4SP4 and Windows 2000
710 BOOL WINAPI
ProcessIdToSessionId( DWORD procid
, DWORD
*sessionid_ptr
)
712 /* According to MSDN, if the calling process is not in a terminal
713 * services environment, then the sessionid returned is zero.
719 /***********************************************************************
720 * SetThreadExecutionState (KERNEL32.@)
722 * Informs the system that activity is taking place for
723 * power management purposes.
725 EXECUTION_STATE WINAPI
SetThreadExecutionState(EXECUTION_STATE flags
)
727 static EXECUTION_STATE current
=
728 ES_SYSTEM_REQUIRED
|ES_DISPLAY_REQUIRED
|ES_USER_PRESENT
;
729 EXECUTION_STATE old
= current
;
731 if (!(current
& ES_CONTINUOUS
) || (flags
& ES_CONTINUOUS
))
733 FIXME("(0x%lx): stub, harmless (power management).\n", flags
);
740 /***********************************************************************
741 * SetLastError (KERNEL.147)
742 * SetLastError (KERNEL32.@)
744 /* void WINAPI SetLastError( DWORD error ); */
745 __ASM_GLOBAL_FUNC( SetLastError
,
746 "movl 4(%esp),%eax\n\t"
751 /***********************************************************************
752 * GetLastError (KERNEL.148)
753 * GetLastError (KERNEL32.@)
755 /* DWORD WINAPI GetLastError(void); */
756 __ASM_GLOBAL_FUNC( GetLastError
, ".byte 0x64\n\tmovl 0x60,%eax\n\tret" );
758 /***********************************************************************
759 * GetCurrentProcessId (KERNEL.471)
760 * GetCurrentProcessId (KERNEL32.@)
762 /* DWORD WINAPI GetCurrentProcessId(void) */
763 __ASM_GLOBAL_FUNC( GetCurrentProcessId
, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" );
765 /***********************************************************************
766 * GetCurrentThreadId (KERNEL.462)
767 * GetCurrentThreadId (KERNEL32.@)
769 /* DWORD WINAPI GetCurrentThreadId(void) */
770 __ASM_GLOBAL_FUNC( GetCurrentThreadId
, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" );
774 /**********************************************************************
775 * SetLastError (KERNEL.147)
776 * SetLastError (KERNEL32.@)
778 * Sets the last-error code.
780 void WINAPI
SetLastError( DWORD error
) /* [in] Per-thread error code */
782 NtCurrentTeb()->last_error
= error
;
785 /**********************************************************************
786 * GetLastError (KERNEL.148)
787 * GetLastError (KERNEL32.@)
789 * Returns last-error code.
791 DWORD WINAPI
GetLastError(void)
793 return NtCurrentTeb()->last_error
;
796 /***********************************************************************
797 * GetCurrentProcessId (KERNEL.471)
798 * GetCurrentProcessId (KERNEL32.@)
800 * Returns process identifier.
802 DWORD WINAPI
GetCurrentProcessId(void)
804 return (DWORD
)NtCurrentTeb()->pid
;
807 /***********************************************************************
808 * GetCurrentThreadId (KERNEL.462)
809 * GetCurrentThreadId (KERNEL32.@)
811 * Returns thread identifier.
813 DWORD WINAPI
GetCurrentThreadId(void)
815 return NtCurrentTeb()->tid
;
818 #endif /* __i386__ */