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
);
237 MODULE_DllThreadAttach( NULL
);
238 ExitThread( func( NtCurrentTeb()->entry_arg
) );
240 __EXCEPT(UnhandledExceptionFilter
)
242 TerminateThread( GetCurrentThread(), GetExceptionCode() );
248 /***********************************************************************
249 * CreateThread (KERNEL32.@)
251 HANDLE WINAPI
CreateThread( SECURITY_ATTRIBUTES
*sa
, SIZE_T stack
,
252 LPTHREAD_START_ROUTINE start
, LPVOID param
,
253 DWORD flags
, LPDWORD id
)
260 if (pipe( request_pipe
) == -1)
262 SetLastError( ERROR_TOO_MANY_OPEN_FILES
);
265 fcntl( request_pipe
[1], F_SETFD
, 1 ); /* set close on exec flag */
266 wine_server_send_fd( request_pipe
[0] );
268 SERVER_START_REQ( new_thread
)
270 req
->suspend
= ((flags
& CREATE_SUSPENDED
) != 0);
271 req
->inherit
= (sa
&& (sa
->nLength
>=sizeof(*sa
)) && sa
->bInheritHandle
);
272 req
->request_fd
= request_pipe
[0];
273 if (!wine_server_call_err( req
))
275 handle
= reply
->handle
;
278 close( request_pipe
[0] );
282 if (!handle
|| !(teb
= THREAD_InitStack( NULL
, stack
)))
284 close( request_pipe
[1] );
288 teb
->Peb
= NtCurrentTeb()->Peb
;
290 teb
->request_fd
= request_pipe
[1];
291 teb
->entry_point
= start
;
292 teb
->entry_arg
= param
;
293 teb
->startup
= THREAD_Start
;
294 teb
->htask16
= GetCurrentTask();
297 if (SYSDEPS_SpawnThread( teb
) == -1)
299 CloseHandle( handle
);
300 close( request_pipe
[1] );
301 THREAD_FreeTEB( teb
);
307 /***********************************************************************
308 * ExitThread [KERNEL32.@] Ends a thread
313 void WINAPI
ExitThread( DWORD code
) /* [in] Exit code for this thread */
316 SERVER_START_REQ( terminate_thread
)
318 /* send the exit code to the server */
319 req
->handle
= GetCurrentThread();
320 req
->exit_code
= code
;
321 wine_server_call( req
);
328 LdrShutdownProcess();
334 if (!(NtCurrentTeb()->tibflags
& TEBF_WIN32
)) TASK_ExitTask();
335 SYSDEPS_ExitThread( code
);
339 /***********************************************************************
340 * OpenThread Retrieves a handle to a thread from its thread id
345 HANDLE WINAPI
OpenThread( DWORD dwDesiredAccess
, BOOL bInheritHandle
, DWORD dwThreadId
)
348 SERVER_START_REQ( open_thread
)
350 req
->tid
= dwThreadId
;
351 req
->access
= dwDesiredAccess
;
352 req
->inherit
= bInheritHandle
;
353 if (!wine_server_call_err( req
)) ret
= reply
->handle
;
359 /**********************************************************************
360 * TerminateThread [KERNEL32.@] Terminates a thread
366 BOOL WINAPI
TerminateThread( HANDLE handle
, /* [in] Handle to thread */
367 DWORD exit_code
) /* [in] Exit code for thread */
369 NTSTATUS status
= NtTerminateThread( handle
, exit_code
);
370 if (status
) SetLastError( RtlNtStatusToDosError(status
) );
375 /**********************************************************************
376 * GetExitCodeThread (KERNEL32.@)
378 * Gets termination status of thread.
384 BOOL WINAPI
GetExitCodeThread(
385 HANDLE hthread
, /* [in] Handle to thread */
386 LPDWORD exitcode
) /* [out] Address to receive termination status */
389 SERVER_START_REQ( get_thread_info
)
391 req
->handle
= hthread
;
393 ret
= !wine_server_call_err( req
);
394 if (ret
&& exitcode
) *exitcode
= reply
->exit_code
;
401 /* callback for QueueUserAPC */
402 static void CALLBACK
call_user_apc( ULONG_PTR arg1
, ULONG_PTR arg2
, ULONG_PTR arg3
)
404 PAPCFUNC func
= (PAPCFUNC
)arg1
;
408 /***********************************************************************
409 * QueueUserAPC (KERNEL32.@)
411 DWORD WINAPI
QueueUserAPC( PAPCFUNC func
, HANDLE hthread
, ULONG_PTR data
)
413 NTSTATUS status
= NtQueueApcThread( hthread
, call_user_apc
, (ULONG_PTR
)func
, data
, 0 );
415 if (status
) SetLastError( RtlNtStatusToDosError(status
) );
420 /***********************************************************************
421 * ProcessIdToSessionId (KERNEL32.@)
422 * This function is available on Terminal Server 4SP4 and Windows 2000
424 BOOL WINAPI
ProcessIdToSessionId( DWORD procid
, DWORD
*sessionid_ptr
)
426 /* According to MSDN, if the calling process is not in a terminal
427 * services environment, then the sessionid returned is zero.
436 /***********************************************************************
437 * SetLastError (KERNEL.147)
438 * SetLastError (KERNEL32.@)
440 /* void WINAPI SetLastError( DWORD error ); */
441 __ASM_GLOBAL_FUNC( SetLastError
,
442 "movl 4(%esp),%eax\n\t"
447 /***********************************************************************
448 * GetLastError (KERNEL.148)
449 * GetLastError (KERNEL32.@)
451 /* DWORD WINAPI GetLastError(void); */
452 __ASM_GLOBAL_FUNC( GetLastError
, ".byte 0x64\n\tmovl 0x60,%eax\n\tret" );
454 /***********************************************************************
455 * GetCurrentProcessId (KERNEL.471)
456 * GetCurrentProcessId (KERNEL32.@)
458 /* DWORD WINAPI GetCurrentProcessId(void) */
459 __ASM_GLOBAL_FUNC( GetCurrentProcessId
, ".byte 0x64\n\tmovl 0x20,%eax\n\tret" );
461 /***********************************************************************
462 * GetCurrentThreadId (KERNEL.462)
463 * GetCurrentThreadId (KERNEL32.@)
465 /* DWORD WINAPI GetCurrentThreadId(void) */
466 __ASM_GLOBAL_FUNC( GetCurrentThreadId
, ".byte 0x64\n\tmovl 0x24,%eax\n\tret" );
470 /**********************************************************************
471 * SetLastError (KERNEL.147)
472 * SetLastError (KERNEL32.@)
474 * Sets the last-error code.
476 void WINAPI
SetLastError( DWORD error
) /* [in] Per-thread error code */
478 NtCurrentTeb()->last_error
= error
;
481 /**********************************************************************
482 * GetLastError (KERNEL.148)
483 * GetLastError (KERNEL32.@)
485 * Returns last-error code.
487 DWORD WINAPI
GetLastError(void)
489 return NtCurrentTeb()->last_error
;
492 /***********************************************************************
493 * GetCurrentProcessId (KERNEL.471)
494 * GetCurrentProcessId (KERNEL32.@)
496 * Returns process identifier.
498 DWORD WINAPI
GetCurrentProcessId(void)
500 return (DWORD
)NtCurrentTeb()->pid
;
503 /***********************************************************************
504 * GetCurrentThreadId (KERNEL.462)
505 * GetCurrentThreadId (KERNEL32.@)
507 * Returns thread identifier.
509 DWORD WINAPI
GetCurrentThreadId(void)
511 return NtCurrentTeb()->tid
;
514 #endif /* __i386__ */