2 * Kernel synchronization objects
4 * Copyright 1998 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/port.h"
32 #define NONAMELESSUNION
33 #define NONAMELESSSTRUCT
36 #define WIN32_NO_STATUS
45 #include "wine/unicode.h"
46 #include "wine/winbase16.h"
47 #include "kernel_private.h"
49 #include "wine/debug.h"
51 WINE_DEFAULT_DEBUG_CHANNEL(sync);
53 /* check if current version is NT or Win95 */
54 static inline int is_version_nt(void)
56 return !(GetVersion() & 0x80000000);
59 /* returns directory handle to \\BaseNamedObjects */
60 HANDLE get_BaseNamedObjects_handle(void)
62 static HANDLE handle = NULL;
63 static const WCHAR basenameW[] =
64 {'\\','B','a','s','e','N','a','m','e','d','O','b','j','e','c','t','s',0};
66 OBJECT_ATTRIBUTES attr;
72 RtlInitUnicodeString(&str, basenameW);
73 InitializeObjectAttributes(&attr, &str, 0, 0, NULL);
74 NtOpenDirectoryObject(&dir, DIRECTORY_CREATE_OBJECT|DIRECTORY_TRAVERSE,
76 if (InterlockedCompareExchangePointer( (PVOID)&handle, dir, 0 ) != 0)
78 /* someone beat us here... */
85 /* helper for kernel32->ntdll timeout format conversion */
86 static inline PLARGE_INTEGER get_nt_timeout( PLARGE_INTEGER pTime, DWORD timeout )
88 if (timeout == INFINITE) return NULL;
89 pTime->QuadPart = (ULONGLONG)timeout * -10000;
93 /***********************************************************************
96 VOID WINAPI Sleep( DWORD timeout )
98 SleepEx( timeout, FALSE );
101 /******************************************************************************
102 * SleepEx (KERNEL32.@)
104 DWORD WINAPI SleepEx( DWORD timeout, BOOL alertable )
109 status = NtDelayExecution( alertable, get_nt_timeout( &time, timeout ) );
110 if (status == STATUS_USER_APC) return WAIT_IO_COMPLETION;
115 /***********************************************************************
116 * SwitchToThread (KERNEL32.@)
118 BOOL WINAPI SwitchToThread(void)
120 return (NtYieldExecution() != STATUS_NO_YIELD_PERFORMED);
124 /***********************************************************************
125 * WaitForSingleObject (KERNEL32.@)
127 DWORD WINAPI WaitForSingleObject( HANDLE handle, DWORD timeout )
129 return WaitForMultipleObjectsEx( 1, &handle, FALSE, timeout, FALSE );
133 /***********************************************************************
134 * WaitForSingleObjectEx (KERNEL32.@)
136 DWORD WINAPI WaitForSingleObjectEx( HANDLE handle, DWORD timeout,
139 return WaitForMultipleObjectsEx( 1, &handle, FALSE, timeout, alertable );
143 /***********************************************************************
144 * WaitForMultipleObjects (KERNEL32.@)
146 DWORD WINAPI WaitForMultipleObjects( DWORD count, const HANDLE *handles,
147 BOOL wait_all, DWORD timeout )
149 return WaitForMultipleObjectsEx( count, handles, wait_all, timeout, FALSE );
153 /***********************************************************************
154 * WaitForMultipleObjectsEx (KERNEL32.@)
156 DWORD WINAPI WaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
157 BOOL wait_all, DWORD timeout,
161 HANDLE hloc[MAXIMUM_WAIT_OBJECTS];
165 if (count > MAXIMUM_WAIT_OBJECTS)
167 SetLastError(ERROR_INVALID_PARAMETER);
170 for (i = 0; i < count; i++)
172 if ((handles[i] == (HANDLE)STD_INPUT_HANDLE) ||
173 (handles[i] == (HANDLE)STD_OUTPUT_HANDLE) ||
174 (handles[i] == (HANDLE)STD_ERROR_HANDLE))
175 hloc[i] = GetStdHandle( HandleToULong(handles[i]) );
177 hloc[i] = handles[i];
179 /* yes, even screen buffer console handles are waitable, and are
180 * handled as a handle to the console itself !!
182 if (is_console_handle(hloc[i]))
184 if (!VerifyConsoleIoHandle(hloc[i]))
188 hloc[i] = GetConsoleInputWaitHandle();
192 status = NtWaitForMultipleObjects( count, hloc, wait_all, alertable,
193 get_nt_timeout( &time, timeout ) );
195 if (HIWORD(status)) /* is it an error code? */
197 SetLastError( RtlNtStatusToDosError(status) );
198 status = WAIT_FAILED;
204 /***********************************************************************
205 * WaitForSingleObject (KERNEL.460)
207 DWORD WINAPI WaitForSingleObject16( HANDLE handle, DWORD timeout )
209 DWORD retval, mutex_count;
211 ReleaseThunkLock( &mutex_count );
212 retval = WaitForSingleObject( handle, timeout );
213 RestoreThunkLock( mutex_count );
217 /***********************************************************************
218 * WaitForMultipleObjects (KERNEL.461)
220 DWORD WINAPI WaitForMultipleObjects16( DWORD count, const HANDLE *handles,
221 BOOL wait_all, DWORD timeout )
223 DWORD retval, mutex_count;
225 ReleaseThunkLock( &mutex_count );
226 retval = WaitForMultipleObjectsEx( count, handles, wait_all, timeout, FALSE );
227 RestoreThunkLock( mutex_count );
231 /***********************************************************************
232 * WaitForMultipleObjectsEx (KERNEL.495)
234 DWORD WINAPI WaitForMultipleObjectsEx16( DWORD count, const HANDLE *handles,
235 BOOL wait_all, DWORD timeout, BOOL alertable )
237 DWORD retval, mutex_count;
239 ReleaseThunkLock( &mutex_count );
240 retval = WaitForMultipleObjectsEx( count, handles, wait_all, timeout, alertable );
241 RestoreThunkLock( mutex_count );
245 /***********************************************************************
246 * RegisterWaitForSingleObject (KERNEL32.@)
248 BOOL WINAPI RegisterWaitForSingleObject(PHANDLE phNewWaitObject, HANDLE hObject,
249 WAITORTIMERCALLBACK Callback, PVOID Context,
250 ULONG dwMilliseconds, ULONG dwFlags)
254 TRACE("%p %p %p %p %d %d\n",
255 phNewWaitObject,hObject,Callback,Context,dwMilliseconds,dwFlags);
257 status = RtlRegisterWait( phNewWaitObject, hObject, Callback, Context, dwMilliseconds, dwFlags );
258 if (status != STATUS_SUCCESS)
260 SetLastError( RtlNtStatusToDosError(status) );
266 /***********************************************************************
267 * RegisterWaitForSingleObjectEx (KERNEL32.@)
269 HANDLE WINAPI RegisterWaitForSingleObjectEx( HANDLE hObject,
270 WAITORTIMERCALLBACK Callback, PVOID Context,
271 ULONG dwMilliseconds, ULONG dwFlags )
274 HANDLE hNewWaitObject;
276 TRACE("%p %p %p %d %d\n",
277 hObject,Callback,Context,dwMilliseconds,dwFlags);
279 status = RtlRegisterWait( &hNewWaitObject, hObject, Callback, Context, dwMilliseconds, dwFlags );
280 if (status != STATUS_SUCCESS)
282 SetLastError( RtlNtStatusToDosError(status) );
285 return hNewWaitObject;
288 /***********************************************************************
289 * UnregisterWait (KERNEL32.@)
291 BOOL WINAPI UnregisterWait( HANDLE WaitHandle )
295 TRACE("%p\n",WaitHandle);
297 status = RtlDeregisterWait( WaitHandle );
298 if (status != STATUS_SUCCESS)
300 SetLastError( RtlNtStatusToDosError(status) );
306 /***********************************************************************
307 * UnregisterWaitEx (KERNEL32.@)
309 BOOL WINAPI UnregisterWaitEx( HANDLE WaitHandle, HANDLE CompletionEvent )
311 FIXME("%p %p\n",WaitHandle, CompletionEvent);
315 /***********************************************************************
316 * SignalObjectAndWait (KERNEL32.@)
318 * Allows to atomically signal any of the synchro objects (semaphore,
319 * mutex, event) and wait on another.
321 DWORD WINAPI SignalObjectAndWait( HANDLE hObjectToSignal, HANDLE hObjectToWaitOn,
322 DWORD dwMilliseconds, BOOL bAlertable )
325 LARGE_INTEGER timeout;
327 TRACE("%p %p %d %d\n", hObjectToSignal,
328 hObjectToWaitOn, dwMilliseconds, bAlertable);
330 status = NtSignalAndWaitForSingleObject( hObjectToSignal, hObjectToWaitOn, bAlertable,
331 get_nt_timeout( &timeout, dwMilliseconds ) );
334 SetLastError( RtlNtStatusToDosError(status) );
335 status = WAIT_FAILED;
340 /***********************************************************************
341 * InitializeCriticalSection (KERNEL32.@)
343 * Initialise a critical section before use.
346 * crit [O] Critical section to initialise.
349 * Nothing. If the function fails an exception is raised.
351 void WINAPI InitializeCriticalSection( CRITICAL_SECTION *crit )
353 InitializeCriticalSectionEx( crit, 0, 0 );
356 /***********************************************************************
357 * InitializeCriticalSectionAndSpinCount (KERNEL32.@)
359 * Initialise a critical section with a spin count.
362 * crit [O] Critical section to initialise.
363 * spincount [I] Number of times to spin upon contention.
367 * Failure: Nothing. If the function fails an exception is raised.
370 * spincount is ignored on uni-processor systems.
372 BOOL WINAPI InitializeCriticalSectionAndSpinCount( CRITICAL_SECTION *crit, DWORD spincount )
374 return InitializeCriticalSectionEx( crit, spincount, 0 );
377 /***********************************************************************
378 * InitializeCriticalSectionEx (KERNEL32.@)
380 * Initialise a critical section with a spin count and flags.
383 * crit [O] Critical section to initialise.
384 * spincount [I] Number of times to spin upon contention.
385 * flags [I] CRITICAL_SECTION_ flags from winbase.h.
389 * Failure: Nothing. If the function fails an exception is raised.
392 * spincount is ignored on uni-processor systems.
394 BOOL WINAPI InitializeCriticalSectionEx( CRITICAL_SECTION *crit, DWORD spincount, DWORD flags )
396 NTSTATUS ret = RtlInitializeCriticalSectionEx( crit, spincount, flags );
397 if (ret) RtlRaiseStatus( ret );
401 /***********************************************************************
402 * MakeCriticalSectionGlobal (KERNEL32.@)
404 void WINAPI MakeCriticalSectionGlobal( CRITICAL_SECTION *crit )
406 /* let's assume that only one thread at a time will try to do this */
407 HANDLE sem = crit->LockSemaphore;
408 if (!sem) NtCreateSemaphore( &sem, SEMAPHORE_ALL_ACCESS, NULL, 0, 1 );
409 crit->LockSemaphore = ConvertToGlobalHandle( sem );
410 RtlFreeHeap( GetProcessHeap(), 0, crit->DebugInfo );
411 crit->DebugInfo = NULL;
415 /***********************************************************************
416 * ReinitializeCriticalSection (KERNEL32.@)
418 * Initialise an already used critical section.
421 * crit [O] Critical section to initialise.
426 void WINAPI ReinitializeCriticalSection( CRITICAL_SECTION *crit )
428 if ( !crit->LockSemaphore )
429 RtlInitializeCriticalSection( crit );
433 /***********************************************************************
434 * UninitializeCriticalSection (KERNEL32.@)
436 * UnInitialise a critical section after use.
439 * crit [O] Critical section to uninitialise (destroy).
444 void WINAPI UninitializeCriticalSection( CRITICAL_SECTION *crit )
446 RtlDeleteCriticalSection( crit );
450 /***********************************************************************
451 * CreateEventA (KERNEL32.@)
453 HANDLE WINAPI CreateEventA( SECURITY_ATTRIBUTES *sa, BOOL manual_reset,
454 BOOL initial_state, LPCSTR name )
456 WCHAR buffer[MAX_PATH];
458 if (!name) return CreateEventW( sa, manual_reset, initial_state, NULL );
460 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
462 SetLastError( ERROR_FILENAME_EXCED_RANGE );
465 return CreateEventW( sa, manual_reset, initial_state, buffer );
469 /***********************************************************************
470 * CreateEventW (KERNEL32.@)
472 HANDLE WINAPI CreateEventW( SECURITY_ATTRIBUTES *sa, BOOL manual_reset,
473 BOOL initial_state, LPCWSTR name )
476 UNICODE_STRING nameW;
477 OBJECT_ATTRIBUTES attr;
480 /* one buggy program needs this
481 * ("Van Dale Groot woordenboek der Nederlandse taal")
483 if (sa && IsBadReadPtr(sa,sizeof(SECURITY_ATTRIBUTES)))
485 ERR("Bad security attributes pointer %p\n",sa);
486 SetLastError( ERROR_INVALID_PARAMETER);
490 attr.Length = sizeof(attr);
491 attr.RootDirectory = 0;
492 attr.ObjectName = NULL;
493 attr.Attributes = OBJ_OPENIF | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
494 attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
495 attr.SecurityQualityOfService = NULL;
498 RtlInitUnicodeString( &nameW, name );
499 attr.ObjectName = &nameW;
500 attr.RootDirectory = get_BaseNamedObjects_handle();
503 status = NtCreateEvent( &ret, EVENT_ALL_ACCESS, &attr, manual_reset, initial_state );
504 if (status == STATUS_OBJECT_NAME_EXISTS)
505 SetLastError( ERROR_ALREADY_EXISTS );
507 SetLastError( RtlNtStatusToDosError(status) );
512 /***********************************************************************
513 * CreateW32Event (KERNEL.457)
515 HANDLE WINAPI WIN16_CreateEvent( BOOL manual_reset, BOOL initial_state )
517 return CreateEventW( NULL, manual_reset, initial_state, NULL );
521 /***********************************************************************
522 * OpenEventA (KERNEL32.@)
524 HANDLE WINAPI OpenEventA( DWORD access, BOOL inherit, LPCSTR name )
526 WCHAR buffer[MAX_PATH];
528 if (!name) return OpenEventW( access, inherit, NULL );
530 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
532 SetLastError( ERROR_FILENAME_EXCED_RANGE );
535 return OpenEventW( access, inherit, buffer );
539 /***********************************************************************
540 * OpenEventW (KERNEL32.@)
542 HANDLE WINAPI OpenEventW( DWORD access, BOOL inherit, LPCWSTR name )
545 UNICODE_STRING nameW;
546 OBJECT_ATTRIBUTES attr;
549 if (!is_version_nt()) access = EVENT_ALL_ACCESS;
551 attr.Length = sizeof(attr);
552 attr.RootDirectory = 0;
553 attr.ObjectName = NULL;
554 attr.Attributes = inherit ? OBJ_INHERIT : 0;
555 attr.SecurityDescriptor = NULL;
556 attr.SecurityQualityOfService = NULL;
559 RtlInitUnicodeString( &nameW, name );
560 attr.ObjectName = &nameW;
561 attr.RootDirectory = get_BaseNamedObjects_handle();
564 status = NtOpenEvent( &ret, access, &attr );
565 if (status != STATUS_SUCCESS)
567 SetLastError( RtlNtStatusToDosError(status) );
573 /***********************************************************************
574 * PulseEvent (KERNEL32.@)
576 BOOL WINAPI PulseEvent( HANDLE handle )
580 if ((status = NtPulseEvent( handle, NULL )))
581 SetLastError( RtlNtStatusToDosError(status) );
586 /***********************************************************************
587 * SetW32Event (KERNEL.458)
588 * SetEvent (KERNEL32.@)
590 BOOL WINAPI SetEvent( HANDLE handle )
594 if ((status = NtSetEvent( handle, NULL )))
595 SetLastError( RtlNtStatusToDosError(status) );
600 /***********************************************************************
601 * ResetW32Event (KERNEL.459)
602 * ResetEvent (KERNEL32.@)
604 BOOL WINAPI ResetEvent( HANDLE handle )
608 if ((status = NtResetEvent( handle, NULL )))
609 SetLastError( RtlNtStatusToDosError(status) );
614 /***********************************************************************
615 * NOTE: The Win95 VWin32_Event routines given below are really low-level
616 * routines implemented directly by VWin32. The user-mode libraries
617 * implement Win32 synchronisation routines on top of these low-level
618 * primitives. We do it the other way around here :-)
621 /***********************************************************************
622 * VWin32_EventCreate (KERNEL.442)
624 HANDLE WINAPI VWin32_EventCreate(VOID)
626 HANDLE hEvent = CreateEventW( NULL, FALSE, 0, NULL );
627 return ConvertToGlobalHandle( hEvent );
630 /***********************************************************************
631 * VWin32_EventDestroy (KERNEL.443)
633 VOID WINAPI VWin32_EventDestroy(HANDLE event)
635 CloseHandle( event );
638 /***********************************************************************
639 * VWin32_EventWait (KERNEL.450)
641 VOID WINAPI VWin32_EventWait(HANDLE event)
645 ReleaseThunkLock( &mutex_count );
646 WaitForSingleObject( event, INFINITE );
647 RestoreThunkLock( mutex_count );
650 /***********************************************************************
651 * VWin32_EventSet (KERNEL.451)
652 * KERNEL_479 (KERNEL.479)
654 VOID WINAPI VWin32_EventSet(HANDLE event)
661 /***********************************************************************
662 * CreateMutexA (KERNEL32.@)
664 HANDLE WINAPI CreateMutexA( SECURITY_ATTRIBUTES *sa, BOOL owner, LPCSTR name )
666 WCHAR buffer[MAX_PATH];
668 if (!name) return CreateMutexW( sa, owner, NULL );
670 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
672 SetLastError( ERROR_FILENAME_EXCED_RANGE );
675 return CreateMutexW( sa, owner, buffer );
679 /***********************************************************************
680 * CreateMutexW (KERNEL32.@)
682 HANDLE WINAPI CreateMutexW( SECURITY_ATTRIBUTES *sa, BOOL owner, LPCWSTR name )
685 UNICODE_STRING nameW;
686 OBJECT_ATTRIBUTES attr;
689 attr.Length = sizeof(attr);
690 attr.RootDirectory = 0;
691 attr.ObjectName = NULL;
692 attr.Attributes = OBJ_OPENIF | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
693 attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
694 attr.SecurityQualityOfService = NULL;
697 RtlInitUnicodeString( &nameW, name );
698 attr.ObjectName = &nameW;
699 attr.RootDirectory = get_BaseNamedObjects_handle();
702 status = NtCreateMutant( &ret, MUTEX_ALL_ACCESS, &attr, owner );
703 if (status == STATUS_OBJECT_NAME_EXISTS)
704 SetLastError( ERROR_ALREADY_EXISTS );
706 SetLastError( RtlNtStatusToDosError(status) );
711 /***********************************************************************
712 * OpenMutexA (KERNEL32.@)
714 HANDLE WINAPI OpenMutexA( DWORD access, BOOL inherit, LPCSTR name )
716 WCHAR buffer[MAX_PATH];
718 if (!name) return OpenMutexW( access, inherit, NULL );
720 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
722 SetLastError( ERROR_FILENAME_EXCED_RANGE );
725 return OpenMutexW( access, inherit, buffer );
729 /***********************************************************************
730 * OpenMutexW (KERNEL32.@)
732 HANDLE WINAPI OpenMutexW( DWORD access, BOOL inherit, LPCWSTR name )
735 UNICODE_STRING nameW;
736 OBJECT_ATTRIBUTES attr;
739 if (!is_version_nt()) access = MUTEX_ALL_ACCESS;
741 attr.Length = sizeof(attr);
742 attr.RootDirectory = 0;
743 attr.ObjectName = NULL;
744 attr.Attributes = inherit ? OBJ_INHERIT : 0;
745 attr.SecurityDescriptor = NULL;
746 attr.SecurityQualityOfService = NULL;
749 RtlInitUnicodeString( &nameW, name );
750 attr.ObjectName = &nameW;
751 attr.RootDirectory = get_BaseNamedObjects_handle();
754 status = NtOpenMutant( &ret, access, &attr );
755 if (status != STATUS_SUCCESS)
757 SetLastError( RtlNtStatusToDosError(status) );
764 /***********************************************************************
765 * ReleaseMutex (KERNEL32.@)
767 BOOL WINAPI ReleaseMutex( HANDLE handle )
771 status = NtReleaseMutant(handle, NULL);
772 if (status != STATUS_SUCCESS)
774 SetLastError( RtlNtStatusToDosError(status) );
786 /***********************************************************************
787 * CreateSemaphoreA (KERNEL32.@)
789 HANDLE WINAPI CreateSemaphoreA( SECURITY_ATTRIBUTES *sa, LONG initial, LONG max, LPCSTR name )
791 WCHAR buffer[MAX_PATH];
793 if (!name) return CreateSemaphoreW( sa, initial, max, NULL );
795 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
797 SetLastError( ERROR_FILENAME_EXCED_RANGE );
800 return CreateSemaphoreW( sa, initial, max, buffer );
804 /***********************************************************************
805 * CreateSemaphoreW (KERNEL32.@)
807 HANDLE WINAPI CreateSemaphoreW( SECURITY_ATTRIBUTES *sa, LONG initial,
808 LONG max, LPCWSTR name )
811 UNICODE_STRING nameW;
812 OBJECT_ATTRIBUTES attr;
815 attr.Length = sizeof(attr);
816 attr.RootDirectory = 0;
817 attr.ObjectName = NULL;
818 attr.Attributes = OBJ_OPENIF | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
819 attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
820 attr.SecurityQualityOfService = NULL;
823 RtlInitUnicodeString( &nameW, name );
824 attr.ObjectName = &nameW;
825 attr.RootDirectory = get_BaseNamedObjects_handle();
828 status = NtCreateSemaphore( &ret, SEMAPHORE_ALL_ACCESS, &attr, initial, max );
829 if (status == STATUS_OBJECT_NAME_EXISTS)
830 SetLastError( ERROR_ALREADY_EXISTS );
832 SetLastError( RtlNtStatusToDosError(status) );
837 /***********************************************************************
838 * OpenSemaphoreA (KERNEL32.@)
840 HANDLE WINAPI OpenSemaphoreA( DWORD access, BOOL inherit, LPCSTR name )
842 WCHAR buffer[MAX_PATH];
844 if (!name) return OpenSemaphoreW( access, inherit, NULL );
846 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
848 SetLastError( ERROR_FILENAME_EXCED_RANGE );
851 return OpenSemaphoreW( access, inherit, buffer );
855 /***********************************************************************
856 * OpenSemaphoreW (KERNEL32.@)
858 HANDLE WINAPI OpenSemaphoreW( DWORD access, BOOL inherit, LPCWSTR name )
861 UNICODE_STRING nameW;
862 OBJECT_ATTRIBUTES attr;
865 if (!is_version_nt()) access = SEMAPHORE_ALL_ACCESS;
867 attr.Length = sizeof(attr);
868 attr.RootDirectory = 0;
869 attr.ObjectName = NULL;
870 attr.Attributes = inherit ? OBJ_INHERIT : 0;
871 attr.SecurityDescriptor = NULL;
872 attr.SecurityQualityOfService = NULL;
875 RtlInitUnicodeString( &nameW, name );
876 attr.ObjectName = &nameW;
877 attr.RootDirectory = get_BaseNamedObjects_handle();
880 status = NtOpenSemaphore( &ret, access, &attr );
881 if (status != STATUS_SUCCESS)
883 SetLastError( RtlNtStatusToDosError(status) );
890 /***********************************************************************
891 * ReleaseSemaphore (KERNEL32.@)
893 BOOL WINAPI ReleaseSemaphore( HANDLE handle, LONG count, LONG *previous )
895 NTSTATUS status = NtReleaseSemaphore( handle, count, (PULONG)previous );
896 if (status) SetLastError( RtlNtStatusToDosError(status) );
905 /******************************************************************************
906 * CreateJobObjectW (KERNEL32.@)
908 HANDLE WINAPI CreateJobObjectW( LPSECURITY_ATTRIBUTES sa, LPCWSTR name )
911 UNICODE_STRING nameW;
912 OBJECT_ATTRIBUTES attr;
915 attr.Length = sizeof(attr);
916 attr.RootDirectory = 0;
917 attr.ObjectName = NULL;
918 attr.Attributes = OBJ_OPENIF | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
919 attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
920 attr.SecurityQualityOfService = NULL;
923 RtlInitUnicodeString( &nameW, name );
924 attr.ObjectName = &nameW;
925 attr.RootDirectory = get_BaseNamedObjects_handle();
928 status = NtCreateJobObject( &ret, JOB_OBJECT_ALL_ACCESS, &attr );
929 if (status == STATUS_OBJECT_NAME_EXISTS)
930 SetLastError( ERROR_ALREADY_EXISTS );
932 SetLastError( RtlNtStatusToDosError(status) );
936 /******************************************************************************
937 * CreateJobObjectA (KERNEL32.@)
939 HANDLE WINAPI CreateJobObjectA( LPSECURITY_ATTRIBUTES attr, LPCSTR name )
941 WCHAR buffer[MAX_PATH];
943 if (!name) return CreateJobObjectW( attr, NULL );
945 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
947 SetLastError( ERROR_FILENAME_EXCED_RANGE );
950 return CreateJobObjectW( attr, buffer );
953 /******************************************************************************
954 * OpenJobObjectW (KERNEL32.@)
956 HANDLE WINAPI OpenJobObjectW( DWORD access, BOOL inherit, LPCWSTR name )
959 UNICODE_STRING nameW;
960 OBJECT_ATTRIBUTES attr;
963 attr.Length = sizeof(attr);
964 attr.RootDirectory = 0;
965 attr.ObjectName = NULL;
966 attr.Attributes = inherit ? OBJ_INHERIT : 0;
967 attr.SecurityDescriptor = NULL;
968 attr.SecurityQualityOfService = NULL;
971 RtlInitUnicodeString( &nameW, name );
972 attr.ObjectName = &nameW;
973 attr.RootDirectory = get_BaseNamedObjects_handle();
976 status = NtOpenJobObject( &ret, access, &attr );
977 if (status != STATUS_SUCCESS)
979 SetLastError( RtlNtStatusToDosError(status) );
985 /******************************************************************************
986 * OpenJobObjectA (KERNEL32.@)
988 HANDLE WINAPI OpenJobObjectA( DWORD access, BOOL inherit, LPCSTR name )
990 WCHAR buffer[MAX_PATH];
992 if (!name) return OpenJobObjectW( access, inherit, NULL );
994 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
996 SetLastError( ERROR_FILENAME_EXCED_RANGE );
999 return OpenJobObjectW( access, inherit, buffer );
1002 /******************************************************************************
1003 * TerminateJobObject (KERNEL32.@)
1005 BOOL WINAPI TerminateJobObject( HANDLE job, UINT exit_code )
1007 NTSTATUS status = NtTerminateJobObject( job, exit_code );
1008 if (status) SetLastError( RtlNtStatusToDosError(status) );
1012 /******************************************************************************
1013 * QueryInformationJobObject (KERNEL32.@)
1015 BOOL WINAPI QueryInformationJobObject( HANDLE job, JOBOBJECTINFOCLASS class, LPVOID info,
1016 DWORD len, DWORD *ret_len )
1018 NTSTATUS status = NtQueryInformationJobObject( job, class, info, len, ret_len );
1019 if (status) SetLastError( RtlNtStatusToDosError(status) );
1023 /******************************************************************************
1024 * SetInformationJobObject (KERNEL32.@)
1026 BOOL WINAPI SetInformationJobObject( HANDLE job, JOBOBJECTINFOCLASS class, LPVOID info, DWORD len )
1028 NTSTATUS status = NtSetInformationJobObject( job, class, info, len );
1029 if (status) SetLastError( RtlNtStatusToDosError(status) );
1033 /******************************************************************************
1034 * AssignProcessToJobObject (KERNEL32.@)
1036 BOOL WINAPI AssignProcessToJobObject( HANDLE job, HANDLE process )
1038 NTSTATUS status = NtAssignProcessToJobObject( job, process );
1039 if (status) SetLastError( RtlNtStatusToDosError(status) );
1043 /******************************************************************************
1044 * IsProcessInJob (KERNEL32.@)
1046 BOOL WINAPI IsProcessInJob( HANDLE process, HANDLE job, PBOOL result )
1048 NTSTATUS status = NtIsProcessInJob( job, process );
1051 case STATUS_PROCESS_IN_JOB:
1054 case STATUS_PROCESS_NOT_IN_JOB:
1058 SetLastError( RtlNtStatusToDosError(status) );
1069 /***********************************************************************
1070 * CreateWaitableTimerA (KERNEL32.@)
1072 HANDLE WINAPI CreateWaitableTimerA( SECURITY_ATTRIBUTES *sa, BOOL manual, LPCSTR name )
1074 WCHAR buffer[MAX_PATH];
1076 if (!name) return CreateWaitableTimerW( sa, manual, NULL );
1078 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
1080 SetLastError( ERROR_FILENAME_EXCED_RANGE );
1083 return CreateWaitableTimerW( sa, manual, buffer );
1087 /***********************************************************************
1088 * CreateWaitableTimerW (KERNEL32.@)
1090 HANDLE WINAPI CreateWaitableTimerW( SECURITY_ATTRIBUTES *sa, BOOL manual, LPCWSTR name )
1094 UNICODE_STRING nameW;
1095 OBJECT_ATTRIBUTES attr;
1097 attr.Length = sizeof(attr);
1098 attr.RootDirectory = 0;
1099 attr.ObjectName = NULL;
1100 attr.Attributes = OBJ_OPENIF | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
1101 attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
1102 attr.SecurityQualityOfService = NULL;
1105 RtlInitUnicodeString( &nameW, name );
1106 attr.ObjectName = &nameW;
1107 attr.RootDirectory = get_BaseNamedObjects_handle();
1110 status = NtCreateTimer(&handle, TIMER_ALL_ACCESS, &attr,
1111 manual ? NotificationTimer : SynchronizationTimer);
1112 if (status == STATUS_OBJECT_NAME_EXISTS)
1113 SetLastError( ERROR_ALREADY_EXISTS );
1115 SetLastError( RtlNtStatusToDosError(status) );
1120 /***********************************************************************
1121 * OpenWaitableTimerA (KERNEL32.@)
1123 HANDLE WINAPI OpenWaitableTimerA( DWORD access, BOOL inherit, LPCSTR name )
1125 WCHAR buffer[MAX_PATH];
1127 if (!name) return OpenWaitableTimerW( access, inherit, NULL );
1129 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
1131 SetLastError( ERROR_FILENAME_EXCED_RANGE );
1134 return OpenWaitableTimerW( access, inherit, buffer );
1138 /***********************************************************************
1139 * OpenWaitableTimerW (KERNEL32.@)
1141 HANDLE WINAPI OpenWaitableTimerW( DWORD access, BOOL inherit, LPCWSTR name )
1144 UNICODE_STRING nameW;
1145 OBJECT_ATTRIBUTES attr;
1148 if (!is_version_nt()) access = TIMER_ALL_ACCESS;
1150 attr.Length = sizeof(attr);
1151 attr.RootDirectory = 0;
1152 attr.ObjectName = NULL;
1153 attr.Attributes = inherit ? OBJ_INHERIT : 0;
1154 attr.SecurityDescriptor = NULL;
1155 attr.SecurityQualityOfService = NULL;
1158 RtlInitUnicodeString( &nameW, name );
1159 attr.ObjectName = &nameW;
1160 attr.RootDirectory = get_BaseNamedObjects_handle();
1163 status = NtOpenTimer(&handle, access, &attr);
1164 if (status != STATUS_SUCCESS)
1166 SetLastError( RtlNtStatusToDosError(status) );
1173 /***********************************************************************
1174 * SetWaitableTimer (KERNEL32.@)
1176 BOOL WINAPI SetWaitableTimer( HANDLE handle, const LARGE_INTEGER *when, LONG period,
1177 PTIMERAPCROUTINE callback, LPVOID arg, BOOL resume )
1179 NTSTATUS status = NtSetTimer(handle, when, (PTIMER_APC_ROUTINE)callback,
1180 arg, resume, period, NULL);
1182 if (status != STATUS_SUCCESS)
1184 SetLastError( RtlNtStatusToDosError(status) );
1185 if (status != STATUS_TIMER_RESUME_IGNORED) return FALSE;
1191 /***********************************************************************
1192 * CancelWaitableTimer (KERNEL32.@)
1194 BOOL WINAPI CancelWaitableTimer( HANDLE handle )
1198 status = NtCancelTimer(handle, NULL);
1199 if (status != STATUS_SUCCESS)
1201 SetLastError( RtlNtStatusToDosError(status) );
1208 /***********************************************************************
1209 * CreateTimerQueue (KERNEL32.@)
1211 HANDLE WINAPI CreateTimerQueue(void)
1214 NTSTATUS status = RtlCreateTimerQueue(&q);
1216 if (status != STATUS_SUCCESS)
1218 SetLastError( RtlNtStatusToDosError(status) );
1226 /***********************************************************************
1227 * DeleteTimerQueueEx (KERNEL32.@)
1229 BOOL WINAPI DeleteTimerQueueEx(HANDLE TimerQueue, HANDLE CompletionEvent)
1231 NTSTATUS status = RtlDeleteTimerQueueEx(TimerQueue, CompletionEvent);
1233 if (status != STATUS_SUCCESS)
1235 SetLastError( RtlNtStatusToDosError(status) );
1242 /***********************************************************************
1243 * CreateTimerQueueTimer (KERNEL32.@)
1245 * Creates a timer-queue timer. This timer expires at the specified due
1246 * time (in ms), then after every specified period (in ms). When the timer
1247 * expires, the callback function is called.
1250 * nonzero on success or zero on failure
1252 BOOL WINAPI CreateTimerQueueTimer( PHANDLE phNewTimer, HANDLE TimerQueue,
1253 WAITORTIMERCALLBACK Callback, PVOID Parameter,
1254 DWORD DueTime, DWORD Period, ULONG Flags )
1256 NTSTATUS status = RtlCreateTimer(phNewTimer, TimerQueue, Callback,
1257 Parameter, DueTime, Period, Flags);
1259 if (status != STATUS_SUCCESS)
1261 SetLastError( RtlNtStatusToDosError(status) );
1268 /***********************************************************************
1269 * ChangeTimerQueueTimer (KERNEL32.@)
1271 * Changes the times at which the timer expires.
1274 * nonzero on success or zero on failure
1276 BOOL WINAPI ChangeTimerQueueTimer( HANDLE TimerQueue, HANDLE Timer,
1277 ULONG DueTime, ULONG Period )
1279 NTSTATUS status = RtlUpdateTimer(TimerQueue, Timer, DueTime, Period);
1281 if (status != STATUS_SUCCESS)
1283 SetLastError( RtlNtStatusToDosError(status) );
1290 /***********************************************************************
1291 * DeleteTimerQueueTimer (KERNEL32.@)
1293 * Cancels a timer-queue timer.
1296 * nonzero on success or zero on failure
1298 BOOL WINAPI DeleteTimerQueueTimer( HANDLE TimerQueue, HANDLE Timer,
1299 HANDLE CompletionEvent )
1301 NTSTATUS status = RtlDeleteTimer(TimerQueue, Timer, CompletionEvent);
1302 if (status != STATUS_SUCCESS)
1304 SetLastError( RtlNtStatusToDosError(status) );
1316 /***********************************************************************
1317 * CreateNamedPipeA (KERNEL32.@)
1319 HANDLE WINAPI CreateNamedPipeA( LPCSTR name, DWORD dwOpenMode,
1320 DWORD dwPipeMode, DWORD nMaxInstances,
1321 DWORD nOutBufferSize, DWORD nInBufferSize,
1322 DWORD nDefaultTimeOut, LPSECURITY_ATTRIBUTES attr )
1324 WCHAR buffer[MAX_PATH];
1326 if (!name) return CreateNamedPipeW( NULL, dwOpenMode, dwPipeMode, nMaxInstances,
1327 nOutBufferSize, nInBufferSize, nDefaultTimeOut, attr );
1329 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
1331 SetLastError( ERROR_FILENAME_EXCED_RANGE );
1332 return INVALID_HANDLE_VALUE;
1334 return CreateNamedPipeW( buffer, dwOpenMode, dwPipeMode, nMaxInstances,
1335 nOutBufferSize, nInBufferSize, nDefaultTimeOut, attr );
1339 /***********************************************************************
1340 * CreateNamedPipeW (KERNEL32.@)
1342 HANDLE WINAPI CreateNamedPipeW( LPCWSTR name, DWORD dwOpenMode,
1343 DWORD dwPipeMode, DWORD nMaxInstances,
1344 DWORD nOutBufferSize, DWORD nInBufferSize,
1345 DWORD nDefaultTimeOut, LPSECURITY_ATTRIBUTES sa )
1348 UNICODE_STRING nt_name;
1349 OBJECT_ATTRIBUTES attr;
1350 DWORD access, options;
1351 BOOLEAN pipe_type, read_mode, non_block;
1353 IO_STATUS_BLOCK iosb;
1354 LARGE_INTEGER timeout;
1356 TRACE("(%s, %#08x, %#08x, %d, %d, %d, %d, %p)\n",
1357 debugstr_w(name), dwOpenMode, dwPipeMode, nMaxInstances,
1358 nOutBufferSize, nInBufferSize, nDefaultTimeOut, sa );
1360 if (!RtlDosPathNameToNtPathName_U( name, &nt_name, NULL, NULL ))
1362 SetLastError( ERROR_PATH_NOT_FOUND );
1363 return INVALID_HANDLE_VALUE;
1365 if (nt_name.Length >= MAX_PATH * sizeof(WCHAR) )
1367 SetLastError( ERROR_FILENAME_EXCED_RANGE );
1368 RtlFreeUnicodeString( &nt_name );
1369 return INVALID_HANDLE_VALUE;
1372 attr.Length = sizeof(attr);
1373 attr.RootDirectory = 0;
1374 attr.ObjectName = &nt_name;
1375 attr.Attributes = OBJ_CASE_INSENSITIVE |
1376 ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
1377 attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
1378 attr.SecurityQualityOfService = NULL;
1380 switch(dwOpenMode & 3)
1382 case PIPE_ACCESS_INBOUND:
1383 options = FILE_PIPE_INBOUND;
1384 access = GENERIC_READ;
1386 case PIPE_ACCESS_OUTBOUND:
1387 options = FILE_PIPE_OUTBOUND;
1388 access = GENERIC_WRITE;
1390 case PIPE_ACCESS_DUPLEX:
1391 options = FILE_PIPE_FULL_DUPLEX;
1392 access = GENERIC_READ | GENERIC_WRITE;
1395 SetLastError( ERROR_INVALID_PARAMETER );
1396 return INVALID_HANDLE_VALUE;
1398 access |= SYNCHRONIZE;
1399 if (dwOpenMode & FILE_FLAG_WRITE_THROUGH) options |= FILE_WRITE_THROUGH;
1400 if (!(dwOpenMode & FILE_FLAG_OVERLAPPED)) options |= FILE_SYNCHRONOUS_IO_ALERT;
1401 pipe_type = (dwPipeMode & PIPE_TYPE_MESSAGE) ? TRUE : FALSE;
1402 read_mode = (dwPipeMode & PIPE_READMODE_MESSAGE) ? TRUE : FALSE;
1403 non_block = (dwPipeMode & PIPE_NOWAIT) ? TRUE : FALSE;
1404 if (nMaxInstances >= PIPE_UNLIMITED_INSTANCES) nMaxInstances = ~0U;
1406 timeout.QuadPart = (ULONGLONG)nDefaultTimeOut * -10000;
1410 status = NtCreateNamedPipeFile(&handle, access, &attr, &iosb, 0,
1411 FILE_OVERWRITE_IF, options, pipe_type,
1412 read_mode, non_block, nMaxInstances,
1413 nInBufferSize, nOutBufferSize, &timeout);
1415 RtlFreeUnicodeString( &nt_name );
1418 handle = INVALID_HANDLE_VALUE;
1419 SetLastError( RtlNtStatusToDosError(status) );
1425 /***********************************************************************
1426 * PeekNamedPipe (KERNEL32.@)
1428 BOOL WINAPI PeekNamedPipe( HANDLE hPipe, LPVOID lpvBuffer, DWORD cbBuffer,
1429 LPDWORD lpcbRead, LPDWORD lpcbAvail, LPDWORD lpcbMessage )
1431 FILE_PIPE_PEEK_BUFFER local_buffer;
1432 FILE_PIPE_PEEK_BUFFER *buffer = &local_buffer;
1436 if (cbBuffer && !(buffer = HeapAlloc( GetProcessHeap(), 0,
1437 FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data[cbBuffer] ))))
1439 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
1443 status = NtFsControlFile( hPipe, 0, NULL, NULL, &io, FSCTL_PIPE_PEEK, NULL, 0,
1444 buffer, FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data[cbBuffer] ) );
1447 ULONG read_size = io.Information - FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data );
1448 if (lpcbAvail) *lpcbAvail = buffer->ReadDataAvailable;
1449 if (lpcbRead) *lpcbRead = read_size;
1450 if (lpcbMessage) *lpcbMessage = 0; /* FIXME */
1451 if (lpvBuffer) memcpy( lpvBuffer, buffer->Data, read_size );
1453 else SetLastError( RtlNtStatusToDosError(status) );
1455 if (buffer != &local_buffer) HeapFree( GetProcessHeap(), 0, buffer );
1459 /***********************************************************************
1460 * WaitNamedPipeA (KERNEL32.@)
1462 BOOL WINAPI WaitNamedPipeA (LPCSTR name, DWORD nTimeOut)
1464 WCHAR buffer[MAX_PATH];
1466 if (!name) return WaitNamedPipeW( NULL, nTimeOut );
1468 if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
1470 SetLastError( ERROR_FILENAME_EXCED_RANGE );
1473 return WaitNamedPipeW( buffer, nTimeOut );
1477 /***********************************************************************
1478 * WaitNamedPipeW (KERNEL32.@)
1480 * Waits for a named pipe instance to become available
1483 * name [I] Pointer to a named pipe name to wait for
1484 * nTimeOut [I] How long to wait in ms
1487 * TRUE: Success, named pipe can be opened with CreateFile
1488 * FALSE: Failure, GetLastError can be called for further details
1490 BOOL WINAPI WaitNamedPipeW (LPCWSTR name, DWORD nTimeOut)
1492 static const WCHAR leadin[] = {'\\','?','?','\\','P','I','P','E','\\'};
1494 UNICODE_STRING nt_name, pipe_dev_name;
1495 FILE_PIPE_WAIT_FOR_BUFFER *pipe_wait;
1496 IO_STATUS_BLOCK iosb;
1497 OBJECT_ATTRIBUTES attr;
1501 TRACE("%s 0x%08x\n",debugstr_w(name),nTimeOut);
1503 if (!RtlDosPathNameToNtPathName_U( name, &nt_name, NULL, NULL ))
1506 if (nt_name.Length >= MAX_PATH * sizeof(WCHAR) ||
1507 nt_name.Length < sizeof(leadin) ||
1508 strncmpiW( nt_name.Buffer, leadin, sizeof(leadin)/sizeof(WCHAR)) != 0)
1510 RtlFreeUnicodeString( &nt_name );
1511 SetLastError( ERROR_PATH_NOT_FOUND );
1515 sz_pipe_wait = sizeof(*pipe_wait) + nt_name.Length - sizeof(leadin) - sizeof(WCHAR);
1516 if (!(pipe_wait = HeapAlloc( GetProcessHeap(), 0, sz_pipe_wait)))
1518 RtlFreeUnicodeString( &nt_name );
1519 SetLastError( ERROR_OUTOFMEMORY );
1523 pipe_dev_name.Buffer = nt_name.Buffer;
1524 pipe_dev_name.Length = sizeof(leadin);
1525 pipe_dev_name.MaximumLength = sizeof(leadin);
1526 InitializeObjectAttributes(&attr,&pipe_dev_name, OBJ_CASE_INSENSITIVE, NULL, NULL);
1527 status = NtOpenFile( &pipe_dev, FILE_READ_ATTRIBUTES, &attr,
1528 &iosb, FILE_SHARE_READ | FILE_SHARE_WRITE,
1529 FILE_SYNCHRONOUS_IO_NONALERT);
1530 if (status != ERROR_SUCCESS)
1532 SetLastError( ERROR_PATH_NOT_FOUND );
1536 pipe_wait->TimeoutSpecified = !(nTimeOut == NMPWAIT_USE_DEFAULT_WAIT);
1537 if (nTimeOut == NMPWAIT_WAIT_FOREVER)
1538 pipe_wait->Timeout.QuadPart = ((ULONGLONG)0x7fffffff << 32) | 0xffffffff;
1540 pipe_wait->Timeout.QuadPart = (ULONGLONG)nTimeOut * -10000;
1541 pipe_wait->NameLength = nt_name.Length - sizeof(leadin);
1542 memcpy(pipe_wait->Name, nt_name.Buffer + sizeof(leadin)/sizeof(WCHAR),
1543 pipe_wait->NameLength);
1544 RtlFreeUnicodeString( &nt_name );
1546 status = NtFsControlFile( pipe_dev, NULL, NULL, NULL, &iosb, FSCTL_PIPE_WAIT,
1547 pipe_wait, sz_pipe_wait, NULL, 0 );
1549 HeapFree( GetProcessHeap(), 0, pipe_wait );
1550 NtClose( pipe_dev );
1552 if(status != STATUS_SUCCESS)
1554 SetLastError(RtlNtStatusToDosError(status));
1562 /***********************************************************************
1563 * ConnectNamedPipe (KERNEL32.@)
1565 * Connects to a named pipe
1568 * hPipe: A handle to a named pipe returned by CreateNamedPipe
1569 * overlapped: Optional OVERLAPPED struct
1573 * FALSE: Failure, GetLastError can be called for further details
1575 BOOL WINAPI ConnectNamedPipe(HANDLE hPipe, LPOVERLAPPED overlapped)
1578 IO_STATUS_BLOCK status_block;
1579 LPVOID cvalue = NULL;
1581 TRACE("(%p,%p)\n", hPipe, overlapped);
1585 overlapped->Internal = STATUS_PENDING;
1586 overlapped->InternalHigh = 0;
1587 if (((ULONG_PTR)overlapped->hEvent & 1) == 0) cvalue = overlapped;
1590 status = NtFsControlFile(hPipe, overlapped ? overlapped->hEvent : NULL, NULL, cvalue,
1591 overlapped ? (IO_STATUS_BLOCK *)overlapped : &status_block,
1592 FSCTL_PIPE_LISTEN, NULL, 0, NULL, 0);
1594 if (status == STATUS_SUCCESS) return TRUE;
1595 SetLastError( RtlNtStatusToDosError(status) );
1599 /***********************************************************************
1600 * DisconnectNamedPipe (KERNEL32.@)
1602 * Disconnects from a named pipe
1605 * hPipe: A handle to a named pipe returned by CreateNamedPipe
1609 * FALSE: Failure, GetLastError can be called for further details
1611 BOOL WINAPI DisconnectNamedPipe(HANDLE hPipe)
1614 IO_STATUS_BLOCK io_block;
1616 TRACE("(%p)\n",hPipe);
1618 status = NtFsControlFile(hPipe, 0, NULL, NULL, &io_block, FSCTL_PIPE_DISCONNECT,
1620 if (status == STATUS_SUCCESS) return TRUE;
1621 SetLastError( RtlNtStatusToDosError(status) );
1625 /***********************************************************************
1626 * TransactNamedPipe (KERNEL32.@)
1629 * should be done as a single operation in the wineserver or kernel
1631 BOOL WINAPI TransactNamedPipe(
1632 HANDLE handle, LPVOID write_buf, DWORD write_size, LPVOID read_buf,
1633 DWORD read_size, LPDWORD bytes_read, LPOVERLAPPED overlapped)
1638 TRACE("%p %p %d %p %d %p %p\n",
1639 handle, write_buf, write_size, read_buf,
1640 read_size, bytes_read, overlapped);
1644 FIXME("Doesn't support overlapped operation as yet\n");
1648 r = WriteFile(handle, write_buf, write_size, &count, NULL);
1650 r = ReadFile(handle, read_buf, read_size, bytes_read, NULL);
1655 /***********************************************************************
1656 * GetNamedPipeInfo (KERNEL32.@)
1658 BOOL WINAPI GetNamedPipeInfo(
1659 HANDLE hNamedPipe, LPDWORD lpFlags, LPDWORD lpOutputBufferSize,
1660 LPDWORD lpInputBufferSize, LPDWORD lpMaxInstances)
1662 FILE_PIPE_LOCAL_INFORMATION fpli;
1663 IO_STATUS_BLOCK iosb;
1666 status = NtQueryInformationFile(hNamedPipe, &iosb, &fpli, sizeof(fpli),
1667 FilePipeLocalInformation);
1670 SetLastError( RtlNtStatusToDosError(status) );
1676 *lpFlags = (fpli.NamedPipeEnd & FILE_PIPE_SERVER_END) ?
1677 PIPE_SERVER_END : PIPE_CLIENT_END;
1678 *lpFlags |= (fpli.NamedPipeType & FILE_PIPE_TYPE_MESSAGE) ?
1679 PIPE_TYPE_MESSAGE : PIPE_TYPE_BYTE;
1682 if (lpOutputBufferSize) *lpOutputBufferSize = fpli.OutboundQuota;
1683 if (lpInputBufferSize) *lpInputBufferSize = fpli.InboundQuota;
1684 if (lpMaxInstances) *lpMaxInstances = fpli.MaximumInstances;
1689 /***********************************************************************
1690 * GetNamedPipeHandleStateA (KERNEL32.@)
1692 BOOL WINAPI GetNamedPipeHandleStateA(
1693 HANDLE hNamedPipe, LPDWORD lpState, LPDWORD lpCurInstances,
1694 LPDWORD lpMaxCollectionCount, LPDWORD lpCollectDataTimeout,
1695 LPSTR lpUsername, DWORD nUsernameMaxSize)
1697 FIXME("%p %p %p %p %p %p %d\n",
1698 hNamedPipe, lpState, lpCurInstances,
1699 lpMaxCollectionCount, lpCollectDataTimeout,
1700 lpUsername, nUsernameMaxSize);
1705 /***********************************************************************
1706 * GetNamedPipeHandleStateW (KERNEL32.@)
1708 BOOL WINAPI GetNamedPipeHandleStateW(
1709 HANDLE hNamedPipe, LPDWORD lpState, LPDWORD lpCurInstances,
1710 LPDWORD lpMaxCollectionCount, LPDWORD lpCollectDataTimeout,
1711 LPWSTR lpUsername, DWORD nUsernameMaxSize)
1713 FIXME("%p %p %p %p %p %p %d\n",
1714 hNamedPipe, lpState, lpCurInstances,
1715 lpMaxCollectionCount, lpCollectDataTimeout,
1716 lpUsername, nUsernameMaxSize);
1721 /***********************************************************************
1722 * SetNamedPipeHandleState (KERNEL32.@)
1724 BOOL WINAPI SetNamedPipeHandleState(
1725 HANDLE hNamedPipe, LPDWORD lpMode, LPDWORD lpMaxCollectionCount,
1726 LPDWORD lpCollectDataTimeout)
1728 /* should be a fixme, but this function is called a lot by the RPC
1729 * runtime, and it slows down InstallShield a fair bit. */
1730 WARN("stub: %p %p/%d %p %p\n",
1731 hNamedPipe, lpMode, lpMode ? *lpMode : 0, lpMaxCollectionCount, lpCollectDataTimeout);
1735 /***********************************************************************
1736 * CallNamedPipeA (KERNEL32.@)
1738 BOOL WINAPI CallNamedPipeA(
1739 LPCSTR lpNamedPipeName, LPVOID lpInput, DWORD dwInputSize,
1740 LPVOID lpOutput, DWORD dwOutputSize,
1741 LPDWORD lpBytesRead, DWORD nTimeout)
1747 TRACE("%s %p %d %p %d %p %d\n",
1748 debugstr_a(lpNamedPipeName), lpInput, dwInputSize,
1749 lpOutput, dwOutputSize, lpBytesRead, nTimeout);
1751 if( lpNamedPipeName )
1753 len = MultiByteToWideChar( CP_ACP, 0, lpNamedPipeName, -1, NULL, 0 );
1754 str = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
1755 MultiByteToWideChar( CP_ACP, 0, lpNamedPipeName, -1, str, len );
1757 ret = CallNamedPipeW( str, lpInput, dwInputSize, lpOutput,
1758 dwOutputSize, lpBytesRead, nTimeout );
1759 if( lpNamedPipeName )
1760 HeapFree( GetProcessHeap(), 0, str );
1765 /***********************************************************************
1766 * CallNamedPipeW (KERNEL32.@)
1768 BOOL WINAPI CallNamedPipeW(
1769 LPCWSTR lpNamedPipeName, LPVOID lpInput, DWORD lpInputSize,
1770 LPVOID lpOutput, DWORD lpOutputSize,
1771 LPDWORD lpBytesRead, DWORD nTimeout)
1777 TRACE("%s %p %d %p %d %p %d\n",
1778 debugstr_w(lpNamedPipeName), lpInput, lpInputSize,
1779 lpOutput, lpOutputSize, lpBytesRead, nTimeout);
1781 pipe = CreateFileW(lpNamedPipeName, GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
1782 if (pipe == INVALID_HANDLE_VALUE)
1784 ret = WaitNamedPipeW(lpNamedPipeName, nTimeout);
1787 pipe = CreateFileW(lpNamedPipeName, GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
1788 if (pipe == INVALID_HANDLE_VALUE)
1792 mode = PIPE_READMODE_MESSAGE;
1793 ret = SetNamedPipeHandleState(pipe, &mode, NULL, NULL);
1795 /* Currently SetNamedPipeHandleState() is a stub returning FALSE */
1796 if (ret) FIXME("Now that SetNamedPipeHandleState() is more than a stub, please update CallNamedPipeW\n");
1804 ret = TransactNamedPipe(pipe, lpInput, lpInputSize, lpOutput, lpOutputSize, lpBytesRead, NULL);
1812 /******************************************************************
1813 * CreatePipe (KERNEL32.@)
1816 BOOL WINAPI CreatePipe( PHANDLE hReadPipe, PHANDLE hWritePipe,
1817 LPSECURITY_ATTRIBUTES sa, DWORD size )
1819 static unsigned index /* = 0 */;
1822 unsigned in_index = index;
1823 UNICODE_STRING nt_name;
1824 OBJECT_ATTRIBUTES attr;
1826 IO_STATUS_BLOCK iosb;
1827 LARGE_INTEGER timeout;
1829 *hReadPipe = *hWritePipe = INVALID_HANDLE_VALUE;
1831 attr.Length = sizeof(attr);
1832 attr.RootDirectory = 0;
1833 attr.ObjectName = &nt_name;
1834 attr.Attributes = OBJ_CASE_INSENSITIVE |
1835 ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
1836 attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
1837 attr.SecurityQualityOfService = NULL;
1839 timeout.QuadPart = (ULONGLONG)NMPWAIT_USE_DEFAULT_WAIT * -10000;
1840 /* generate a unique pipe name (system wide) */
1843 static const WCHAR nameFmt[] = { '\\','?','?','\\','p','i','p','e',
1844 '\\','W','i','n','3','2','.','P','i','p','e','s','.','%','0','8','l',
1845 'u','.','%','0','8','u','\0' };
1847 snprintfW(name, sizeof(name) / sizeof(name[0]), nameFmt,
1848 GetCurrentProcessId(), ++index);
1849 RtlInitUnicodeString(&nt_name, name);
1850 status = NtCreateNamedPipeFile(&hr, GENERIC_READ | SYNCHRONIZE, &attr, &iosb,
1851 0, FILE_OVERWRITE_IF,
1852 FILE_SYNCHRONOUS_IO_ALERT | FILE_PIPE_INBOUND,
1853 FALSE, FALSE, FALSE,
1854 1, size, size, &timeout);
1857 SetLastError( RtlNtStatusToDosError(status) );
1858 hr = INVALID_HANDLE_VALUE;
1860 } while (hr == INVALID_HANDLE_VALUE && index != in_index);
1861 /* from completion sakeness, I think system resources might be exhausted before this happens !! */
1862 if (hr == INVALID_HANDLE_VALUE) return FALSE;
1864 status = NtOpenFile(&hw, GENERIC_WRITE | SYNCHRONIZE, &attr, &iosb, 0,
1865 FILE_SYNCHRONOUS_IO_ALERT | FILE_NON_DIRECTORY_FILE);
1869 SetLastError( RtlNtStatusToDosError(status) );
1880 /******************************************************************************
1881 * CreateMailslotA [KERNEL32.@]
1883 * See CreateMailslotW.
1885 HANDLE WINAPI CreateMailslotA( LPCSTR lpName, DWORD nMaxMessageSize,
1886 DWORD lReadTimeout, LPSECURITY_ATTRIBUTES sa )
1892 TRACE("%s %d %d %p\n", debugstr_a(lpName),
1893 nMaxMessageSize, lReadTimeout, sa);
1897 len = MultiByteToWideChar( CP_ACP, 0, lpName, -1, NULL, 0 );
1898 name = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
1899 MultiByteToWideChar( CP_ACP, 0, lpName, -1, name, len );
1902 handle = CreateMailslotW( name, nMaxMessageSize, lReadTimeout, sa );
1904 HeapFree( GetProcessHeap(), 0, name );
1910 /******************************************************************************
1911 * CreateMailslotW [KERNEL32.@]
1913 * Create a mailslot with specified name.
1916 * lpName [I] Pointer to string for mailslot name
1917 * nMaxMessageSize [I] Maximum message size
1918 * lReadTimeout [I] Milliseconds before read time-out
1919 * sa [I] Pointer to security structure
1922 * Success: Handle to mailslot
1923 * Failure: INVALID_HANDLE_VALUE
1925 HANDLE WINAPI CreateMailslotW( LPCWSTR lpName, DWORD nMaxMessageSize,
1926 DWORD lReadTimeout, LPSECURITY_ATTRIBUTES sa )
1928 HANDLE handle = INVALID_HANDLE_VALUE;
1929 OBJECT_ATTRIBUTES attr;
1930 UNICODE_STRING nameW;
1931 LARGE_INTEGER timeout;
1932 IO_STATUS_BLOCK iosb;
1935 TRACE("%s %d %d %p\n", debugstr_w(lpName),
1936 nMaxMessageSize, lReadTimeout, sa);
1938 if (!RtlDosPathNameToNtPathName_U( lpName, &nameW, NULL, NULL ))
1940 SetLastError( ERROR_PATH_NOT_FOUND );
1941 return INVALID_HANDLE_VALUE;
1944 if (nameW.Length >= MAX_PATH * sizeof(WCHAR) )
1946 SetLastError( ERROR_FILENAME_EXCED_RANGE );
1947 RtlFreeUnicodeString( &nameW );
1948 return INVALID_HANDLE_VALUE;
1951 attr.Length = sizeof(attr);
1952 attr.RootDirectory = 0;
1953 attr.Attributes = OBJ_CASE_INSENSITIVE;
1954 attr.ObjectName = &nameW;
1955 attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
1956 attr.SecurityQualityOfService = NULL;
1958 if (lReadTimeout != MAILSLOT_WAIT_FOREVER)
1959 timeout.QuadPart = (ULONGLONG) lReadTimeout * -10000;
1961 timeout.QuadPart = ((LONGLONG)0x7fffffff << 32) | 0xffffffff;
1963 status = NtCreateMailslotFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr,
1964 &iosb, 0, 0, nMaxMessageSize, &timeout );
1967 SetLastError( RtlNtStatusToDosError(status) );
1968 handle = INVALID_HANDLE_VALUE;
1971 RtlFreeUnicodeString( &nameW );
1976 /******************************************************************************
1977 * GetMailslotInfo [KERNEL32.@]
1979 * Retrieve information about a mailslot.
1982 * hMailslot [I] Mailslot handle
1983 * lpMaxMessageSize [O] Address of maximum message size
1984 * lpNextSize [O] Address of size of next message
1985 * lpMessageCount [O] Address of number of messages
1986 * lpReadTimeout [O] Address of read time-out
1992 BOOL WINAPI GetMailslotInfo( HANDLE hMailslot, LPDWORD lpMaxMessageSize,
1993 LPDWORD lpNextSize, LPDWORD lpMessageCount,
1994 LPDWORD lpReadTimeout )
1996 FILE_MAILSLOT_QUERY_INFORMATION info;
1997 IO_STATUS_BLOCK iosb;
2000 TRACE("%p %p %p %p %p\n",hMailslot, lpMaxMessageSize,
2001 lpNextSize, lpMessageCount, lpReadTimeout);
2003 status = NtQueryInformationFile( hMailslot, &iosb, &info, sizeof info,
2004 FileMailslotQueryInformation );
2006 if( status != STATUS_SUCCESS )
2008 SetLastError( RtlNtStatusToDosError(status) );
2012 if( lpMaxMessageSize )
2013 *lpMaxMessageSize = info.MaximumMessageSize;
2015 *lpNextSize = info.NextMessageSize;
2016 if( lpMessageCount )
2017 *lpMessageCount = info.MessagesAvailable;
2020 if (info.ReadTimeout.QuadPart == (((LONGLONG)0x7fffffff << 32) | 0xffffffff))
2021 *lpReadTimeout = MAILSLOT_WAIT_FOREVER;
2023 *lpReadTimeout = info.ReadTimeout.QuadPart / -10000;
2029 /******************************************************************************
2030 * SetMailslotInfo [KERNEL32.@]
2032 * Set the read timeout of a mailslot.
2035 * hMailslot [I] Mailslot handle
2036 * dwReadTimeout [I] Timeout in milliseconds.
2042 BOOL WINAPI SetMailslotInfo( HANDLE hMailslot, DWORD dwReadTimeout)
2044 FILE_MAILSLOT_SET_INFORMATION info;
2045 IO_STATUS_BLOCK iosb;
2048 TRACE("%p %d\n", hMailslot, dwReadTimeout);
2050 if (dwReadTimeout != MAILSLOT_WAIT_FOREVER)
2051 info.ReadTimeout.QuadPart = (ULONGLONG)dwReadTimeout * -10000;
2053 info.ReadTimeout.QuadPart = ((LONGLONG)0x7fffffff << 32) | 0xffffffff;
2054 status = NtSetInformationFile( hMailslot, &iosb, &info, sizeof info,
2055 FileMailslotSetInformation );
2056 if( status != STATUS_SUCCESS )
2058 SetLastError( RtlNtStatusToDosError(status) );
2065 /******************************************************************************
2066 * CreateIoCompletionPort (KERNEL32.@)
2068 HANDLE WINAPI CreateIoCompletionPort(HANDLE hFileHandle, HANDLE hExistingCompletionPort,
2069 ULONG_PTR CompletionKey, DWORD dwNumberOfConcurrentThreads)
2074 TRACE("(%p, %p, %08lx, %08x)\n",
2075 hFileHandle, hExistingCompletionPort, CompletionKey, dwNumberOfConcurrentThreads);
2077 if (hExistingCompletionPort && hFileHandle == INVALID_HANDLE_VALUE)
2079 SetLastError( ERROR_INVALID_PARAMETER);
2083 if (hExistingCompletionPort)
2084 ret = hExistingCompletionPort;
2087 status = NtCreateIoCompletion( &ret, IO_COMPLETION_ALL_ACCESS, NULL, dwNumberOfConcurrentThreads );
2088 if (status != STATUS_SUCCESS) goto fail;
2091 if (hFileHandle != INVALID_HANDLE_VALUE)
2093 FILE_COMPLETION_INFORMATION info;
2094 IO_STATUS_BLOCK iosb;
2096 info.CompletionPort = ret;
2097 info.CompletionKey = CompletionKey;
2098 status = NtSetInformationFile( hFileHandle, &iosb, &info, sizeof(info), FileCompletionInformation );
2099 if (status != STATUS_SUCCESS) goto fail;
2105 if (ret && !hExistingCompletionPort)
2107 SetLastError( RtlNtStatusToDosError(status) );
2111 /******************************************************************************
2112 * GetQueuedCompletionStatus (KERNEL32.@)
2114 BOOL WINAPI GetQueuedCompletionStatus( HANDLE CompletionPort, LPDWORD lpNumberOfBytesTransferred,
2115 PULONG_PTR pCompletionKey, LPOVERLAPPED *lpOverlapped,
2116 DWORD dwMilliseconds )
2119 IO_STATUS_BLOCK iosb;
2120 LARGE_INTEGER wait_time;
2122 TRACE("(%p,%p,%p,%p,%d)\n",
2123 CompletionPort,lpNumberOfBytesTransferred,pCompletionKey,lpOverlapped,dwMilliseconds);
2125 *lpOverlapped = NULL;
2127 status = NtRemoveIoCompletion( CompletionPort, pCompletionKey, (PULONG_PTR)lpOverlapped,
2128 &iosb, get_nt_timeout( &wait_time, dwMilliseconds ) );
2129 if (status == STATUS_SUCCESS)
2131 *lpNumberOfBytesTransferred = iosb.Information;
2135 SetLastError( RtlNtStatusToDosError(status) );
2140 /******************************************************************************
2141 * PostQueuedCompletionStatus (KERNEL32.@)
2143 BOOL WINAPI PostQueuedCompletionStatus( HANDLE CompletionPort, DWORD dwNumberOfBytes,
2144 ULONG_PTR dwCompletionKey, LPOVERLAPPED lpOverlapped)
2148 TRACE("%p %d %08lx %p\n", CompletionPort, dwNumberOfBytes, dwCompletionKey, lpOverlapped );
2150 status = NtSetIoCompletion( CompletionPort, dwCompletionKey, (ULONG_PTR)lpOverlapped,
2151 STATUS_SUCCESS, dwNumberOfBytes );
2153 if (status == STATUS_SUCCESS) return TRUE;
2154 SetLastError( RtlNtStatusToDosError(status) );
2158 /******************************************************************************
2159 * BindIoCompletionCallback (KERNEL32.@)
2161 BOOL WINAPI BindIoCompletionCallback( HANDLE FileHandle, LPOVERLAPPED_COMPLETION_ROUTINE Function, ULONG Flags)
2165 TRACE("(%p, %p, %d)\n", FileHandle, Function, Flags);
2167 status = RtlSetIoCompletionCallback( FileHandle, (PRTL_OVERLAPPED_COMPLETION_ROUTINE)Function, Flags );
2168 if (status == STATUS_SUCCESS) return TRUE;
2169 SetLastError( RtlNtStatusToDosError(status) );
2175 /***********************************************************************
2176 * InterlockedCompareExchange (KERNEL32.@)
2178 /* LONG WINAPI InterlockedCompareExchange( PLONG dest, LONG xchg, LONG compare ); */
2179 __ASM_GLOBAL_FUNC(InterlockedCompareExchange,
2180 "movl 12(%esp),%eax\n\t"
2181 "movl 8(%esp),%ecx\n\t"
2182 "movl 4(%esp),%edx\n\t"
2183 "lock; cmpxchgl %ecx,(%edx)\n\t"
2186 /***********************************************************************
2187 * InterlockedExchange (KERNEL32.@)
2189 /* LONG WINAPI InterlockedExchange( PLONG dest, LONG val ); */
2190 __ASM_GLOBAL_FUNC(InterlockedExchange,
2191 "movl 8(%esp),%eax\n\t"
2192 "movl 4(%esp),%edx\n\t"
2193 "lock; xchgl %eax,(%edx)\n\t"
2196 /***********************************************************************
2197 * InterlockedExchangeAdd (KERNEL32.@)
2199 /* LONG WINAPI InterlockedExchangeAdd( PLONG dest, LONG incr ); */
2200 __ASM_GLOBAL_FUNC(InterlockedExchangeAdd,
2201 "movl 8(%esp),%eax\n\t"
2202 "movl 4(%esp),%edx\n\t"
2203 "lock; xaddl %eax,(%edx)\n\t"
2206 /***********************************************************************
2207 * InterlockedIncrement (KERNEL32.@)
2209 /* LONG WINAPI InterlockedIncrement( PLONG dest ); */
2210 __ASM_GLOBAL_FUNC(InterlockedIncrement,
2211 "movl 4(%esp),%edx\n\t"
2213 "lock; xaddl %eax,(%edx)\n\t"
2217 /***********************************************************************
2218 * InterlockedDecrement (KERNEL32.@)
2220 __ASM_GLOBAL_FUNC(InterlockedDecrement,
2221 "movl 4(%esp),%edx\n\t"
2223 "lock; xaddl %eax,(%edx)\n\t"
2227 #else /* __i386__ */
2229 /***********************************************************************
2230 * InterlockedCompareExchange (KERNEL32.@)
2232 * Atomically swap one value with another.
2235 * dest [I/O] The value to replace
2236 * xchq [I] The value to be swapped
2237 * compare [I] The value to compare to dest
2240 * The resulting value of dest.
2243 * dest is updated only if it is equal to compare, otherwise no swap is done.
2245 LONG WINAPI InterlockedCompareExchange( LONG volatile *dest, LONG xchg, LONG compare )
2247 return interlocked_cmpxchg( (int *)dest, xchg, compare );
2250 /***********************************************************************
2251 * InterlockedExchange (KERNEL32.@)
2253 * Atomically swap one value with another.
2256 * dest [I/O] The value to replace
2257 * val [I] The value to be swapped
2260 * The resulting value of dest.
2262 LONG WINAPI InterlockedExchange( LONG volatile *dest, LONG val )
2264 return interlocked_xchg( (int *)dest, val );
2267 /***********************************************************************
2268 * InterlockedExchangeAdd (KERNEL32.@)
2270 * Atomically add one value to another.
2273 * dest [I/O] The value to add to
2274 * incr [I] The value to be added
2277 * The resulting value of dest.
2279 LONG WINAPI InterlockedExchangeAdd( LONG volatile *dest, LONG incr )
2281 return interlocked_xchg_add( (int *)dest, incr );
2284 /***********************************************************************
2285 * InterlockedIncrement (KERNEL32.@)
2287 * Atomically increment a value.
2290 * dest [I/O] The value to increment
2293 * The resulting value of dest.
2295 LONG WINAPI InterlockedIncrement( LONG volatile *dest )
2297 return interlocked_xchg_add( (int *)dest, 1 ) + 1;
2300 /***********************************************************************
2301 * InterlockedDecrement (KERNEL32.@)
2303 * Atomically decrement a value.
2306 * dest [I/O] The value to decrement
2309 * The resulting value of dest.
2311 LONG WINAPI InterlockedDecrement( LONG volatile *dest )
2313 return interlocked_xchg_add( (int *)dest, -1 ) - 1;
2316 #endif /* __i386__ */