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
->tls_ptr
= teb
->tls_array
;
100 teb
->exit_code
= STILL_ACTIVE
;
101 teb
->request_fd
= -1;
103 teb
->wait_fd
[0] = -1;
104 teb
->wait_fd
[1] = -1;
105 teb
->stack_top
= (void *)~0UL;
106 teb
->StaticUnicodeString
.MaximumLength
= sizeof(teb
->StaticUnicodeBuffer
);
107 teb
->StaticUnicodeString
.Buffer
= (PWSTR
)teb
->StaticUnicodeBuffer
;
108 teb
->teb_sel
= wine_ldt_alloc_fs();
109 return (teb
->teb_sel
!= 0);
113 /***********************************************************************
116 * Free data structures associated with a thread.
117 * Must be called from the context of another thread.
119 static void THREAD_FreeTEB( TEB
*teb
)
121 TRACE("(%p) called\n", teb
);
122 /* Free the associated memory */
123 wine_ldt_free_entries( teb
->stack_sel
, 1 );
124 wine_ldt_free_fs( teb
->teb_sel
);
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)
168 * 1 page debug info (except for initial thread)
171 stack_size
= (stack_size
+ (page_size
- 1)) & ~(page_size
- 1);
172 total_size
= stack_size
+ SIGNAL_STACK_SIZE
+ 3 * page_size
;
173 total_size
+= 0x10000; /* 16-bit stack */
174 if (!teb
) total_size
+= 2 * page_size
;
176 if (!(base
= VirtualAlloc( NULL
, total_size
, MEM_COMMIT
, PAGE_EXECUTE_READWRITE
)))
181 teb
= (TEB
*)((char *)base
+ total_size
- 2 * page_size
);
182 if (!THREAD_InitTEB( teb
)) goto error
;
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
);
198 /* Allocate the 16-bit stack selector */
200 teb
->stack_sel
= SELECTOR_AllocBlock( teb
->stack_top
, 0x10000, WINE_LDT_FLAGS_DATA
);
201 if (!teb
->stack_sel
) goto error
;
202 teb
->cur_stack
= MAKESEGPTR( teb
->stack_sel
, 0x10000 - sizeof(STACK16FRAME
) );
207 wine_ldt_free_fs( teb
->teb_sel
);
208 VirtualFree( base
, 0, MEM_RELEASE
);
213 /***********************************************************************
216 * Setup the initial thread.
218 * NOTES: The first allocated TEB on NT is at 0x7ffde000.
220 void THREAD_Init(void)
222 if (!initial_teb
.self
) /* do it only once */
224 THREAD_InitTEB( &initial_teb
);
225 assert( initial_teb
.teb_sel
);
226 initial_teb
.process
= ¤t_process
;
227 SYSDEPS_SetCurThread( &initial_teb
);
232 DECL_GLOBAL_CONSTRUCTOR(thread_init
) { THREAD_Init(); }
235 /***********************************************************************
238 * Start execution of a newly created thread. Does not return.
240 static void THREAD_Start(void)
242 LPTHREAD_START_ROUTINE func
= (LPTHREAD_START_ROUTINE
)NtCurrentTeb()->entry_point
;
245 DPRINTF("%04lx:Starting thread (entryproc=%p)\n", GetCurrentThreadId(), func
);
247 PROCESS_CallUserSignalProc( USIG_THREAD_INIT
, 0 );
248 MODULE_DllThreadAttach( NULL
);
249 ExitThread( func( NtCurrentTeb()->entry_arg
) );
253 /***********************************************************************
254 * CreateThread (KERNEL32.@)
256 HANDLE WINAPI
CreateThread( SECURITY_ATTRIBUTES
*sa
, SIZE_T stack
,
257 LPTHREAD_START_ROUTINE start
, LPVOID param
,
258 DWORD flags
, LPDWORD id
)
265 if (pipe( request_pipe
) == -1)
267 SetLastError( ERROR_TOO_MANY_OPEN_FILES
);
270 fcntl( request_pipe
[1], F_SETFD
, 1 ); /* set close on exec flag */
271 wine_server_send_fd( request_pipe
[0] );
273 SERVER_START_REQ( new_thread
)
275 req
->suspend
= ((flags
& CREATE_SUSPENDED
) != 0);
276 req
->inherit
= (sa
&& (sa
->nLength
>=sizeof(*sa
)) && sa
->bInheritHandle
);
277 req
->request_fd
= request_pipe
[0];
278 if (!wine_server_call_err( req
))
280 handle
= reply
->handle
;
283 close( request_pipe
[0] );
287 if (!handle
|| !(teb
= THREAD_InitStack( NULL
, stack
)))
289 close( request_pipe
[1] );
293 teb
->process
= NtCurrentTeb()->process
;
295 teb
->request_fd
= request_pipe
[1];
296 teb
->entry_point
= start
;
297 teb
->entry_arg
= param
;
298 teb
->startup
= THREAD_Start
;
299 teb
->htask16
= GetCurrentTask();
302 if (SYSDEPS_SpawnThread( teb
) == -1)
304 CloseHandle( handle
);
305 close( request_pipe
[1] );
306 THREAD_FreeTEB( teb
);
312 /***********************************************************************
313 * ExitThread [KERNEL32.@] Ends a thread
318 void WINAPI
ExitThread( DWORD code
) /* [in] Exit code for this thread */
321 SERVER_START_REQ( terminate_thread
)
323 /* send the exit code to the server */
324 req
->handle
= GetCurrentThread();
325 req
->exit_code
= code
;
326 wine_server_call( req
);
333 LdrShutdownProcess();
339 if (!(NtCurrentTeb()->tibflags
& TEBF_WIN32
)) TASK_ExitTask();
340 SYSDEPS_ExitThread( code
);
344 /***********************************************************************
345 * OpenThread Retrieves a handle to a thread from its thread id
350 HANDLE WINAPI
OpenThread( DWORD dwDesiredAccess
, BOOL bInheritHandle
, DWORD dwThreadId
)
353 SERVER_START_REQ( open_thread
)
355 req
->tid
= dwThreadId
;
356 req
->access
= dwDesiredAccess
;
357 req
->inherit
= bInheritHandle
;
358 if (!wine_server_call_err( req
)) ret
= reply
->handle
;
364 /***********************************************************************
365 * SetThreadContext [KERNEL32.@] Sets context of thread.
371 BOOL WINAPI
SetThreadContext( HANDLE handle
, /* [in] Handle to thread with context */
372 const CONTEXT
*context
) /* [in] Address of context structure */
374 NTSTATUS status
= NtSetContextThread( handle
, context
);
375 if (status
) SetLastError( RtlNtStatusToDosError(status
) );
380 /***********************************************************************
381 * GetThreadContext [KERNEL32.@] Retrieves context of thread.
387 BOOL WINAPI
GetThreadContext( HANDLE handle
, /* [in] Handle to thread with context */
388 CONTEXT
*context
) /* [out] Address of context structure */
390 NTSTATUS status
= NtGetContextThread( handle
, context
);
391 if (status
) SetLastError( RtlNtStatusToDosError(status
) );
396 /**********************************************************************
397 * GetThreadPriority [KERNEL32.@] Returns priority for thread.
400 * Success: Thread's priority level.
401 * Failure: THREAD_PRIORITY_ERROR_RETURN
403 INT WINAPI
GetThreadPriority(
404 HANDLE hthread
) /* [in] Handle to thread */
406 INT ret
= THREAD_PRIORITY_ERROR_RETURN
;
407 SERVER_START_REQ( get_thread_info
)
409 req
->handle
= hthread
;
411 if (!wine_server_call_err( req
)) ret
= reply
->priority
;
418 /**********************************************************************
419 * SetThreadPriority [KERNEL32.@] Sets priority for thread.
425 BOOL WINAPI
SetThreadPriority(
426 HANDLE hthread
, /* [in] Handle to thread */
427 INT priority
) /* [in] Thread priority level */
430 SERVER_START_REQ( set_thread_info
)
432 req
->handle
= hthread
;
433 req
->priority
= priority
;
434 req
->mask
= SET_THREAD_INFO_PRIORITY
;
435 ret
= !wine_server_call_err( req
);
442 /**********************************************************************
443 * GetThreadPriorityBoost [KERNEL32.@] Returns priority boost for thread.
445 * Always reports that priority boost is disabled.
451 BOOL WINAPI
GetThreadPriorityBoost(
452 HANDLE hthread
, /* [in] Handle to thread */
453 PBOOL pstate
) /* [out] pointer to var that receives the boost state */
455 if (pstate
) *pstate
= FALSE
;
460 /**********************************************************************
461 * SetThreadPriorityBoost [KERNEL32.@] Sets priority boost for thread.
463 * Priority boost is not implemented. Thsi function always returns
464 * FALSE and sets last error to ERROR_CALL_NOT_IMPLEMENTED
467 * Always returns FALSE to indicate a failure
469 BOOL WINAPI
SetThreadPriorityBoost(
470 HANDLE hthread
, /* [in] Handle to thread */
471 BOOL disable
) /* [in] TRUE to disable priority boost */
473 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
478 /**********************************************************************
479 * SetThreadAffinityMask (KERNEL32.@)
481 DWORD WINAPI
SetThreadAffinityMask( HANDLE hThread
, DWORD dwThreadAffinityMask
)
484 SERVER_START_REQ( set_thread_info
)
486 req
->handle
= hThread
;
487 req
->affinity
= dwThreadAffinityMask
;
488 req
->mask
= SET_THREAD_INFO_AFFINITY
;
489 ret
= !wine_server_call_err( req
);
490 /* FIXME: should return previous value */
496 /**********************************************************************
497 * SetThreadIdealProcessor [KERNEL32.@] Obtains timing information.
500 * Success: Value of last call to SetThreadIdealProcessor
503 DWORD WINAPI
SetThreadIdealProcessor(
504 HANDLE hThread
, /* [in] Specifies the thread of interest */
505 DWORD dwIdealProcessor
) /* [in] Specifies the new preferred processor */
507 FIXME("(%p): stub\n",hThread
);
508 SetLastError(ERROR_CALL_NOT_IMPLEMENTED
);
512 /**********************************************************************
513 * TerminateThread [KERNEL32.@] Terminates a thread
519 BOOL WINAPI
TerminateThread( HANDLE handle
, /* [in] Handle to thread */
520 DWORD exit_code
) /* [in] Exit code for thread */
522 NTSTATUS status
= NtTerminateThread( handle
, exit_code
);
523 if (status
) SetLastError( RtlNtStatusToDosError(status
) );
528 /**********************************************************************
529 * GetExitCodeThread (KERNEL32.@)
531 * Gets termination status of thread.
537 BOOL WINAPI
GetExitCodeThread(
538 HANDLE hthread
, /* [in] Handle to thread */
539 LPDWORD exitcode
) /* [out] Address to receive termination status */
542 SERVER_START_REQ( get_thread_info
)
544 req
->handle
= hthread
;
546 ret
= !wine_server_call_err( req
);
547 if (ret
&& exitcode
) *exitcode
= reply
->exit_code
;
554 /**********************************************************************
555 * ResumeThread [KERNEL32.@] Resumes a thread.
557 * Decrements a thread's suspend count. When count is zero, the
558 * execution of the thread is resumed.
561 * Success: Previous suspend count
562 * Failure: 0xFFFFFFFF
565 DWORD WINAPI
ResumeThread( HANDLE hthread
) /* [in] Identifies thread to restart */
568 NTSTATUS status
= NtResumeThread( hthread
, &ret
);
573 SetLastError( RtlNtStatusToDosError(status
) );
579 /**********************************************************************
580 * SuspendThread [KERNEL32.@] Suspends a thread.
583 * Success: Previous suspend count
584 * Failure: 0xFFFFFFFF
586 DWORD WINAPI
SuspendThread( HANDLE hthread
) /* [in] Handle to the thread */
589 NTSTATUS status
= NtSuspendThread( hthread
, &ret
);
594 SetLastError( RtlNtStatusToDosError(status
) );
600 /* callback for QueueUserAPC */
601 static void CALLBACK
call_user_apc( ULONG_PTR arg1
, ULONG_PTR arg2
, ULONG_PTR arg3
)
603 PAPCFUNC func
= (PAPCFUNC
)arg1
;
607 /***********************************************************************
608 * QueueUserAPC (KERNEL32.@)
610 DWORD WINAPI
QueueUserAPC( PAPCFUNC func
, HANDLE hthread
, ULONG_PTR data
)
612 NTSTATUS status
= NtQueueApcThread( hthread
, call_user_apc
, (ULONG_PTR
)func
, data
, 0 );
614 if (status
) SetLastError( RtlNtStatusToDosError(status
) );
619 /**********************************************************************
620 * GetThreadTimes [KERNEL32.@] Obtains timing information.
626 BOOL WINAPI
GetThreadTimes(
627 HANDLE thread
, /* [in] Specifies the thread of interest */
628 LPFILETIME creationtime
, /* [out] When the thread was created */
629 LPFILETIME exittime
, /* [out] When the thread was destroyed */
630 LPFILETIME kerneltime
, /* [out] Time thread spent in kernel mode */
631 LPFILETIME usertime
) /* [out] Time thread spent in user mode */
635 if (creationtime
|| exittime
)
637 /* We need to do a server call to get the creation time or exit time */
638 /* This works on any thread */
640 SERVER_START_REQ( get_thread_info
)
642 req
->handle
= thread
;
644 if ((ret
= !wine_server_call_err( req
)))
647 RtlSecondsSince1970ToTime( reply
->creation_time
, (LARGE_INTEGER
*)creationtime
);
649 RtlSecondsSince1970ToTime( reply
->exit_time
, (LARGE_INTEGER
*)exittime
);
654 if (ret
&& (kerneltime
|| usertime
))
656 /* We call times(2) for kernel time or user time */
657 /* We can only (portably) do this for the current thread */
658 if (thread
== GetCurrentThread())
662 long clocks_per_sec
= sysconf(_SC_CLK_TCK
);
667 time
= (ULONGLONG
)time_buf
.tms_stime
* 10000000 / clocks_per_sec
;
668 kerneltime
->dwHighDateTime
= time
>> 32;
669 kerneltime
->dwLowDateTime
= (DWORD
)time
;
673 time
= (ULONGLONG
)time_buf
.tms_utime
* 10000000 / clocks_per_sec
;
674 usertime
->dwHighDateTime
= time
>> 32;
675 usertime
->dwLowDateTime
= (DWORD
)time
;
680 if (kerneltime
) kerneltime
->dwHighDateTime
= kerneltime
->dwLowDateTime
= 0;
681 if (usertime
) usertime
->dwHighDateTime
= usertime
->dwLowDateTime
= 0;
682 FIXME("Cannot get kerneltime or usertime of other threads\n");
689 /**********************************************************************
690 * VWin32_BoostThreadGroup [KERNEL.535]
692 VOID WINAPI
VWin32_BoostThreadGroup( DWORD threadId
, INT boost
)
694 FIXME("(0x%08lx,%d): stub\n", threadId
, boost
);
697 /**********************************************************************
698 * VWin32_BoostThreadStatic [KERNEL.536]
700 VOID WINAPI
VWin32_BoostThreadStatic( DWORD threadId
, INT boost
)
702 FIXME("(0x%08lx,%d): stub\n", threadId
, boost
);
706 /***********************************************************************
707 * GetCurrentThread [KERNEL32.@] Gets pseudohandle for current thread
710 * Pseudohandle for the current thread
712 #undef GetCurrentThread
713 HANDLE WINAPI
GetCurrentThread(void)
715 return (HANDLE
)0xfffffffe;
719 /***********************************************************************
720 * ProcessIdToSessionId (KERNEL32.@)
721 * This function is available on Terminal Server 4SP4 and Windows 2000
723 BOOL WINAPI
ProcessIdToSessionId( DWORD procid
, DWORD
*sessionid_ptr
)
725 /* According to MSDN, if the calling process is not in a terminal
726 * services environment, then the sessionid returned is zero.
732 /***********************************************************************
733 * SetThreadExecutionState (KERNEL32.@)
735 * Informs the system that activity is taking place for
736 * power management purposes.
738 EXECUTION_STATE WINAPI
SetThreadExecutionState(EXECUTION_STATE flags
)
740 static EXECUTION_STATE current
=
741 ES_SYSTEM_REQUIRED
|ES_DISPLAY_REQUIRED
|ES_USER_PRESENT
;
742 EXECUTION_STATE old
= current
;
744 if (!(current
& ES_CONTINUOUS
) || (flags
& ES_CONTINUOUS
))
746 FIXME("(0x%lx): stub, harmless (power management).\n", flags
);
753 /***********************************************************************
754 * SetLastError (KERNEL.147)
755 * SetLastError (KERNEL32.@)
757 /* void WINAPI SetLastError( DWORD error ); */
758 __ASM_GLOBAL_FUNC( SetLastError
,
759 "movl 4(%esp),%eax\n\t"
764 /***********************************************************************
765 * GetLastError (KERNEL.148)
766 * GetLastError (KERNEL32.@)
768 /* DWORD WINAPI GetLastError(void); */
769 __ASM_GLOBAL_FUNC( GetLastError
, ".byte 0x64\n\tmovl 0x60,%eax\n\tret" );
771 /***********************************************************************
772 * GetCurrentProcessId (KERNEL.471)
773 * GetCurrentProcessId (KERNEL32.@)
775 /* DWORD WINAPI GetCurrentProcessId(void) */
776 __ASM_GLOBAL_FUNC( GetCurrentProcessId
, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" );
778 /***********************************************************************
779 * GetCurrentThreadId (KERNEL.462)
780 * GetCurrentThreadId (KERNEL32.@)
782 /* DWORD WINAPI GetCurrentThreadId(void) */
783 __ASM_GLOBAL_FUNC( GetCurrentThreadId
, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" );
787 /**********************************************************************
788 * SetLastError (KERNEL.147)
789 * SetLastError (KERNEL32.@)
791 * Sets the last-error code.
793 void WINAPI
SetLastError( DWORD error
) /* [in] Per-thread error code */
795 NtCurrentTeb()->last_error
= error
;
798 /**********************************************************************
799 * GetLastError (KERNEL.148)
800 * GetLastError (KERNEL32.@)
802 * Returns last-error code.
804 DWORD WINAPI
GetLastError(void)
806 return NtCurrentTeb()->last_error
;
809 /***********************************************************************
810 * GetCurrentProcessId (KERNEL.471)
811 * GetCurrentProcessId (KERNEL32.@)
813 * Returns process identifier.
815 DWORD WINAPI
GetCurrentProcessId(void)
817 return (DWORD
)NtCurrentTeb()->pid
;
820 /***********************************************************************
821 * GetCurrentThreadId (KERNEL.462)
822 * GetCurrentThreadId (KERNEL32.@)
824 * Returns thread identifier.
826 DWORD WINAPI
GetCurrentThreadId(void)
828 return NtCurrentTeb()->tid
;
831 #endif /* __i386__ */