Sweden-Number/dlls/kernelbase/sync.c

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/*
* Kernel synchronization objects
*
* Copyright 1998 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <string.h>
#include <stdio.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#define NONAMELESSUNION
#include "windef.h"
#include "winbase.h"
#include "wincon.h"
#include "winerror.h"
#include "winnls.h"
#include "winternl.h"
#include "winioctl.h"
#include "ddk/wdm.h"
#include "kernelbase.h"
#include "wine/asm.h"
#include "wine/exception.h"
#include "wine/server.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(sync);
/* check if current version is NT or Win95 */
static inline BOOL is_version_nt(void)
{
return !(GetVersion() & 0x80000000);
}
/* helper for kernel32->ntdll timeout format conversion */
static inline LARGE_INTEGER *get_nt_timeout( LARGE_INTEGER *time, DWORD timeout )
{
if (timeout == INFINITE) return NULL;
time->QuadPart = (ULONGLONG)timeout * -10000;
return time;
}
/***********************************************************************
* BaseGetNamedObjectDirectory (kernelbase.@)
*/
NTSTATUS WINAPI BaseGetNamedObjectDirectory( HANDLE *dir )
{
static HANDLE handle;
WCHAR buffer[64];
UNICODE_STRING str;
OBJECT_ATTRIBUTES attr;
NTSTATUS status = STATUS_SUCCESS;
if (!handle)
{
HANDLE dir;
swprintf( buffer, ARRAY_SIZE(buffer), L"\\Sessions\\%u\\BaseNamedObjects",
NtCurrentTeb()->Peb->SessionId );
RtlInitUnicodeString( &str, buffer );
InitializeObjectAttributes(&attr, &str, 0, 0, NULL);
status = NtOpenDirectoryObject( &dir, DIRECTORY_CREATE_OBJECT|DIRECTORY_TRAVERSE, &attr );
if (!status && InterlockedCompareExchangePointer( &handle, dir, 0 ) != 0)
{
/* someone beat us here... */
CloseHandle( dir );
}
}
*dir = handle;
return status;
}
static void get_create_object_attributes( OBJECT_ATTRIBUTES *attr, UNICODE_STRING *nameW,
SECURITY_ATTRIBUTES *sa, const WCHAR *name )
{
attr->Length = sizeof(*attr);
attr->RootDirectory = 0;
attr->ObjectName = NULL;
attr->Attributes = OBJ_OPENIF | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
attr->SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
attr->SecurityQualityOfService = NULL;
if (name)
{
RtlInitUnicodeString( nameW, name );
attr->ObjectName = nameW;
BaseGetNamedObjectDirectory( &attr->RootDirectory );
}
}
static BOOL get_open_object_attributes( OBJECT_ATTRIBUTES *attr, UNICODE_STRING *nameW,
BOOL inherit, const WCHAR *name )
{
HANDLE dir;
if (!name)
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
RtlInitUnicodeString( nameW, name );
BaseGetNamedObjectDirectory( &dir );
InitializeObjectAttributes( attr, nameW, inherit ? OBJ_INHERIT : 0, dir, NULL );
return TRUE;
}
/***********************************************************************
* Waits
***********************************************************************/
static HANDLE normalize_handle_if_console( HANDLE handle )
{
static HANDLE wait_event;
if ((handle == (HANDLE)STD_INPUT_HANDLE) ||
(handle == (HANDLE)STD_OUTPUT_HANDLE) ||
(handle == (HANDLE)STD_ERROR_HANDLE))
handle = GetStdHandle( HandleToULong(handle) );
/* even screen buffer console handles are waitable, and are
* handled as a handle to the console itself
*/
if (is_console_handle( handle ))
{
HANDLE event = 0;
SERVER_START_REQ( get_console_wait_event )
{
req->handle = wine_server_obj_handle( console_handle_map( handle ));
if (!wine_server_call( req )) event = wine_server_ptr_handle( reply->event );
}
SERVER_END_REQ;
if (event)
{
if (InterlockedCompareExchangePointer( &wait_event, event, 0 )) NtClose( event );
handle = wait_event;
}
}
return handle;
}
/***********************************************************************
* RegisterWaitForSingleObjectEx (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH RegisterWaitForSingleObjectEx( HANDLE handle, WAITORTIMERCALLBACK callback,
PVOID context, ULONG timeout, ULONG flags )
{
HANDLE ret;
TRACE( "%p %p %p %d %d\n", handle, callback, context, timeout, flags );
handle = normalize_handle_if_console( handle );
if (!set_ntstatus( RtlRegisterWait( &ret, handle, callback, context, timeout, flags ))) return NULL;
return ret;
}
/***********************************************************************
* SignalObjectAndWait (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH SignalObjectAndWait( HANDLE signal, HANDLE wait,
DWORD timeout, BOOL alertable )
{
NTSTATUS status;
LARGE_INTEGER time;
TRACE( "%p %p %d %d\n", signal, wait, timeout, alertable );
status = NtSignalAndWaitForSingleObject( signal, wait, alertable, get_nt_timeout( &time, timeout ) );
if (HIWORD(status))
{
SetLastError( RtlNtStatusToDosError(status) );
status = WAIT_FAILED;
}
return status;
}
/***********************************************************************
* Sleep (kernelbase.@)
*/
void WINAPI DECLSPEC_HOTPATCH Sleep( DWORD timeout )
{
LARGE_INTEGER time;
NtDelayExecution( FALSE, get_nt_timeout( &time, timeout ) );
}
/******************************************************************************
* SleepEx (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH SleepEx( DWORD timeout, BOOL alertable )
{
NTSTATUS status;
LARGE_INTEGER time;
status = NtDelayExecution( alertable, get_nt_timeout( &time, timeout ) );
if (status == STATUS_USER_APC) return WAIT_IO_COMPLETION;
return 0;
}
/***********************************************************************
* UnregisterWaitEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH UnregisterWaitEx( HANDLE handle, HANDLE event )
{
return set_ntstatus( RtlDeregisterWaitEx( handle, event ));
}
/***********************************************************************
* WaitForSingleObject (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH WaitForSingleObject( HANDLE handle, DWORD timeout )
{
return WaitForMultipleObjectsEx( 1, &handle, FALSE, timeout, FALSE );
}
/***********************************************************************
* WaitForSingleObjectEx (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH WaitForSingleObjectEx( HANDLE handle, DWORD timeout, BOOL alertable )
{
return WaitForMultipleObjectsEx( 1, &handle, FALSE, timeout, alertable );
}
/***********************************************************************
* WaitForMultipleObjects (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH WaitForMultipleObjects( DWORD count, const HANDLE *handles,
BOOL wait_all, DWORD timeout )
{
return WaitForMultipleObjectsEx( count, handles, wait_all, timeout, FALSE );
}
/***********************************************************************
* WaitForMultipleObjectsEx (kernelbase.@)
*/
DWORD WINAPI DECLSPEC_HOTPATCH WaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
BOOL wait_all, DWORD timeout, BOOL alertable )
{
NTSTATUS status;
HANDLE hloc[MAXIMUM_WAIT_OBJECTS];
LARGE_INTEGER time;
unsigned int i;
if (count > MAXIMUM_WAIT_OBJECTS)
{
SetLastError(ERROR_INVALID_PARAMETER);
return WAIT_FAILED;
}
for (i = 0; i < count; i++) hloc[i] = normalize_handle_if_console( handles[i] );
status = NtWaitForMultipleObjects( count, hloc, !wait_all, alertable,
get_nt_timeout( &time, timeout ) );
if (HIWORD(status)) /* is it an error code? */
{
SetLastError( RtlNtStatusToDosError(status) );
status = WAIT_FAILED;
}
return status;
}
/***********************************************************************
* Events
***********************************************************************/
/***********************************************************************
* CreateEventA (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateEventA( SECURITY_ATTRIBUTES *sa, BOOL manual_reset,
BOOL initial_state, LPCSTR name )
{
DWORD flags = 0;
if (manual_reset) flags |= CREATE_EVENT_MANUAL_RESET;
if (initial_state) flags |= CREATE_EVENT_INITIAL_SET;
return CreateEventExA( sa, name, flags, EVENT_ALL_ACCESS );
}
/***********************************************************************
* CreateEventW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateEventW( SECURITY_ATTRIBUTES *sa, BOOL manual_reset,
BOOL initial_state, LPCWSTR name )
{
DWORD flags = 0;
if (manual_reset) flags |= CREATE_EVENT_MANUAL_RESET;
if (initial_state) flags |= CREATE_EVENT_INITIAL_SET;
return CreateEventExW( sa, name, flags, EVENT_ALL_ACCESS );
}
/***********************************************************************
* CreateEventExA (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateEventExA( SECURITY_ATTRIBUTES *sa, LPCSTR name,
DWORD flags, DWORD access )
{
WCHAR buffer[MAX_PATH];
if (!name) return CreateEventExW( sa, NULL, flags, access );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return CreateEventExW( sa, buffer, flags, access );
}
/***********************************************************************
* CreateEventExW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateEventExW( SECURITY_ATTRIBUTES *sa, LPCWSTR name,
DWORD flags, DWORD access )
{
HANDLE ret = 0;
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
/* one buggy program needs this
* ("Van Dale Groot woordenboek der Nederlandse taal")
*/
__TRY
{
get_create_object_attributes( &attr, &nameW, sa, name );
}
__EXCEPT_PAGE_FAULT
{
SetLastError( ERROR_INVALID_PARAMETER);
return 0;
}
__ENDTRY
status = NtCreateEvent( &ret, access, &attr,
(flags & CREATE_EVENT_MANUAL_RESET) ? NotificationEvent : SynchronizationEvent,
(flags & CREATE_EVENT_INITIAL_SET) != 0 );
if (status == STATUS_OBJECT_NAME_EXISTS)
SetLastError( ERROR_ALREADY_EXISTS );
else
SetLastError( RtlNtStatusToDosError(status) );
return ret;
}
/***********************************************************************
* OpenEventA (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH OpenEventA( DWORD access, BOOL inherit, LPCSTR name )
{
WCHAR buffer[MAX_PATH];
if (!name) return OpenEventW( access, inherit, NULL );
if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return OpenEventW( access, inherit, buffer );
}
/***********************************************************************
* OpenEventW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH OpenEventW( DWORD access, BOOL inherit, LPCWSTR name )
{
HANDLE ret;
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
if (!is_version_nt()) access = EVENT_ALL_ACCESS;
if (!get_open_object_attributes( &attr, &nameW, inherit, name )) return 0;
if (!set_ntstatus( NtOpenEvent( &ret, access, &attr ))) return 0;
return ret;
}
/***********************************************************************
* PulseEvent (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH PulseEvent( HANDLE handle )
{
return set_ntstatus( NtPulseEvent( handle, NULL ));
}
/***********************************************************************
* SetEvent (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SetEvent( HANDLE handle )
{
return set_ntstatus( NtSetEvent( handle, NULL ));
}
/***********************************************************************
* ResetEvent (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH ResetEvent( HANDLE handle )
{
return set_ntstatus( NtResetEvent( handle, NULL ));
}
/***********************************************************************
* Mutexes
***********************************************************************/
/***********************************************************************
* CreateMutexA (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateMutexA( SECURITY_ATTRIBUTES *sa, BOOL owner, LPCSTR name )
{
return CreateMutexExA( sa, name, owner ? CREATE_MUTEX_INITIAL_OWNER : 0, MUTEX_ALL_ACCESS );
}
/***********************************************************************
* CreateMutexW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateMutexW( SECURITY_ATTRIBUTES *sa, BOOL owner, LPCWSTR name )
{
return CreateMutexExW( sa, name, owner ? CREATE_MUTEX_INITIAL_OWNER : 0, MUTEX_ALL_ACCESS );
}
/***********************************************************************
* CreateMutexExA (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateMutexExA( SECURITY_ATTRIBUTES *sa, LPCSTR name,
DWORD flags, DWORD access )
{
ANSI_STRING nameA;
NTSTATUS status;
if (!name) return CreateMutexExW( sa, NULL, flags, access );
RtlInitAnsiString( &nameA, name );
status = RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString, &nameA, FALSE );
if (status != STATUS_SUCCESS)
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
return 0;
}
return CreateMutexExW( sa, NtCurrentTeb()->StaticUnicodeString.Buffer, flags, access );
}
/***********************************************************************
* CreateMutexExW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateMutexExW( SECURITY_ATTRIBUTES *sa, LPCWSTR name,
DWORD flags, DWORD access )
{
HANDLE ret = 0;
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
get_create_object_attributes( &attr, &nameW, sa, name );
status = NtCreateMutant( &ret, access, &attr, (flags & CREATE_MUTEX_INITIAL_OWNER) != 0 );
if (status == STATUS_OBJECT_NAME_EXISTS)
SetLastError( ERROR_ALREADY_EXISTS );
else
SetLastError( RtlNtStatusToDosError(status) );
return ret;
}
/***********************************************************************
* OpenMutexW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH OpenMutexW( DWORD access, BOOL inherit, LPCWSTR name )
{
HANDLE ret;
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
if (!is_version_nt()) access = MUTEX_ALL_ACCESS;
if (!get_open_object_attributes( &attr, &nameW, inherit, name )) return 0;
if (!set_ntstatus( NtOpenMutant( &ret, access, &attr ))) return 0;
return ret;
}
/***********************************************************************
* ReleaseMutex (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH ReleaseMutex( HANDLE handle )
{
return set_ntstatus( NtReleaseMutant( handle, NULL ));
}
/***********************************************************************
* Semaphores
***********************************************************************/
/***********************************************************************
* CreateSemaphoreW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateSemaphoreW( SECURITY_ATTRIBUTES *sa, LONG initial,
LONG max, LPCWSTR name )
{
return CreateSemaphoreExW( sa, initial, max, name, 0, SEMAPHORE_ALL_ACCESS );
}
/***********************************************************************
* CreateSemaphoreExW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateSemaphoreExW( SECURITY_ATTRIBUTES *sa, LONG initial, LONG max,
LPCWSTR name, DWORD flags, DWORD access )
{
HANDLE ret = 0;
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
get_create_object_attributes( &attr, &nameW, sa, name );
status = NtCreateSemaphore( &ret, access, &attr, initial, max );
if (status == STATUS_OBJECT_NAME_EXISTS)
SetLastError( ERROR_ALREADY_EXISTS );
else
SetLastError( RtlNtStatusToDosError(status) );
return ret;
}
/***********************************************************************
* OpenSemaphoreW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH OpenSemaphoreW( DWORD access, BOOL inherit, LPCWSTR name )
{
HANDLE ret;
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
if (!is_version_nt()) access = SEMAPHORE_ALL_ACCESS;
if (!get_open_object_attributes( &attr, &nameW, inherit, name )) return 0;
if (!set_ntstatus( NtOpenSemaphore( &ret, access, &attr ))) return 0;
return ret;
}
/***********************************************************************
* ReleaseSemaphore (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH ReleaseSemaphore( HANDLE handle, LONG count, LONG *previous )
{
return set_ntstatus( NtReleaseSemaphore( handle, count, (PULONG)previous ));
}
/***********************************************************************
* Waitable timers
***********************************************************************/
/***********************************************************************
* CreateWaitableTimerW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateWaitableTimerW( SECURITY_ATTRIBUTES *sa, BOOL manual, LPCWSTR name )
{
return CreateWaitableTimerExW( sa, name, manual ? CREATE_WAITABLE_TIMER_MANUAL_RESET : 0,
TIMER_ALL_ACCESS );
}
/***********************************************************************
* CreateWaitableTimerExW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateWaitableTimerExW( SECURITY_ATTRIBUTES *sa, LPCWSTR name,
DWORD flags, DWORD access )
{
HANDLE handle;
NTSTATUS status;
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
get_create_object_attributes( &attr, &nameW, sa, name );
status = NtCreateTimer( &handle, access, &attr,
(flags & CREATE_WAITABLE_TIMER_MANUAL_RESET) ? NotificationTimer : SynchronizationTimer );
if (status == STATUS_OBJECT_NAME_EXISTS)
SetLastError( ERROR_ALREADY_EXISTS );
else
SetLastError( RtlNtStatusToDosError(status) );
return handle;
}
/***********************************************************************
* OpenWaitableTimerW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH OpenWaitableTimerW( DWORD access, BOOL inherit, LPCWSTR name )
{
HANDLE handle;
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
if (!is_version_nt()) access = TIMER_ALL_ACCESS;
if (!get_open_object_attributes( &attr, &nameW, inherit, name )) return 0;
if (!set_ntstatus( NtOpenTimer( &handle, access, &attr ))) return 0;
return handle;
}
/***********************************************************************
* SetWaitableTimer (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SetWaitableTimer( HANDLE handle, const LARGE_INTEGER *when, LONG period,
PTIMERAPCROUTINE callback, LPVOID arg, BOOL resume )
{
NTSTATUS status = NtSetTimer( handle, when, (PTIMER_APC_ROUTINE)callback,
arg, resume, period, NULL );
return set_ntstatus( status ) || status == STATUS_TIMER_RESUME_IGNORED;
}
/***********************************************************************
* SetWaitableTimerEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SetWaitableTimerEx( HANDLE handle, const LARGE_INTEGER *when, LONG period,
PTIMERAPCROUTINE callback, LPVOID arg,
REASON_CONTEXT *context, ULONG tolerabledelay )
{
static int once;
if (!once++) FIXME( "(%p, %p, %d, %p, %p, %p, %d) semi-stub\n",
handle, when, period, callback, arg, context, tolerabledelay );
return SetWaitableTimer( handle, when, period, callback, arg, FALSE );
}
/***********************************************************************
* CancelWaitableTimer (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH CancelWaitableTimer( HANDLE handle )
{
return set_ntstatus( NtCancelTimer( handle, NULL ));
}
/***********************************************************************
* Timer queues
***********************************************************************/
/***********************************************************************
* CreateTimerQueue (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateTimerQueue(void)
{
HANDLE q;
if (!set_ntstatus( RtlCreateTimerQueue( &q ))) return NULL;
return q;
}
/***********************************************************************
* CreateTimerQueueTimer (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH CreateTimerQueueTimer( PHANDLE timer, HANDLE queue,
WAITORTIMERCALLBACK callback, PVOID arg,
DWORD when, DWORD period, ULONG flags )
{
return set_ntstatus( RtlCreateTimer( timer, queue, callback, arg, when, period, flags ));
}
/***********************************************************************
* ChangeTimerQueueTimer (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH ChangeTimerQueueTimer( HANDLE queue, HANDLE timer,
ULONG when, ULONG period )
{
return set_ntstatus( RtlUpdateTimer( queue, timer, when, period ));
}
/***********************************************************************
* DeleteTimerQueueEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH DeleteTimerQueueEx( HANDLE queue, HANDLE event )
{
return set_ntstatus( RtlDeleteTimerQueueEx( queue, event ));
}
/***********************************************************************
* DeleteTimerQueueTimer (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH DeleteTimerQueueTimer( HANDLE queue, HANDLE timer, HANDLE event )
{
return set_ntstatus( RtlDeleteTimer( queue, timer, event ));
}
/***********************************************************************
* Critical sections
***********************************************************************/
/***********************************************************************
* InitializeCriticalSectionAndSpinCount (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH InitializeCriticalSectionAndSpinCount( CRITICAL_SECTION *crit, DWORD count )
{
return !RtlInitializeCriticalSectionAndSpinCount( crit, count );
}
/***********************************************************************
* InitializeCriticalSectionEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH InitializeCriticalSectionEx( CRITICAL_SECTION *crit, DWORD spincount,
DWORD flags )
{
NTSTATUS ret = RtlInitializeCriticalSectionEx( crit, spincount, flags );
if (ret) RtlRaiseStatus( ret );
return !ret;
}
/***********************************************************************
* File mappings
***********************************************************************/
/***********************************************************************
* CreateFileMappingW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateFileMappingW( HANDLE file, LPSECURITY_ATTRIBUTES sa, DWORD protect,
DWORD size_high, DWORD size_low, LPCWSTR name )
{
static const int sec_flags = (SEC_FILE | SEC_IMAGE | SEC_RESERVE | SEC_COMMIT |
SEC_NOCACHE | SEC_WRITECOMBINE | SEC_LARGE_PAGES);
HANDLE ret;
NTSTATUS status;
DWORD access, sec_type;
LARGE_INTEGER size;
UNICODE_STRING nameW;
OBJECT_ATTRIBUTES attr;
sec_type = protect & sec_flags;
protect &= ~sec_flags;
if (!sec_type) sec_type = SEC_COMMIT;
/* Win9x compatibility */
if (!protect && !is_version_nt()) protect = PAGE_READONLY;
switch(protect)
{
case PAGE_READONLY:
case PAGE_WRITECOPY:
access = STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ;
break;
case PAGE_READWRITE:
access = STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ | SECTION_MAP_WRITE;
break;
case PAGE_EXECUTE_READ:
case PAGE_EXECUTE_WRITECOPY:
access = STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ | SECTION_MAP_EXECUTE;
break;
case PAGE_EXECUTE_READWRITE:
access = STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ | SECTION_MAP_WRITE | SECTION_MAP_EXECUTE;
break;
default:
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
size.u.LowPart = size_low;
size.u.HighPart = size_high;
if (file == INVALID_HANDLE_VALUE)
{
file = 0;
if (!size.QuadPart)
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
}
get_create_object_attributes( &attr, &nameW, sa, name );
status = NtCreateSection( &ret, access, &attr, &size, protect, sec_type, file );
if (status == STATUS_OBJECT_NAME_EXISTS)
SetLastError( ERROR_ALREADY_EXISTS );
else
SetLastError( RtlNtStatusToDosError(status) );
return ret;
}
/***********************************************************************
* OpenFileMappingW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH OpenFileMappingW( DWORD access, BOOL inherit, LPCWSTR name )
{
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
HANDLE ret;
if (!get_open_object_attributes( &attr, &nameW, inherit, name )) return 0;
if (access == FILE_MAP_COPY) access = SECTION_MAP_READ;
if (!is_version_nt())
{
/* win9x doesn't do access checks, so try with full access first */
if (!NtOpenSection( &ret, access | SECTION_MAP_READ | SECTION_MAP_WRITE, &attr )) return ret;
}
if (!set_ntstatus( NtOpenSection( &ret, access, &attr ))) return 0;
return ret;
}
/***********************************************************************
* Condition variables
***********************************************************************/
/***********************************************************************
* SleepConditionVariableCS (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SleepConditionVariableCS( CONDITION_VARIABLE *variable,
CRITICAL_SECTION *crit, DWORD timeout )
{
LARGE_INTEGER time;
return set_ntstatus( RtlSleepConditionVariableCS( variable, crit, get_nt_timeout( &time, timeout )));
}
/***********************************************************************
* SleepConditionVariableSRW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SleepConditionVariableSRW( RTL_CONDITION_VARIABLE *variable,
RTL_SRWLOCK *lock, DWORD timeout, ULONG flags )
{
LARGE_INTEGER time;
return set_ntstatus( RtlSleepConditionVariableSRW( variable, lock,
get_nt_timeout( &time, timeout ), flags ));
}
/***********************************************************************
* I/O completions
***********************************************************************/
/******************************************************************************
* CreateIoCompletionPort (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateIoCompletionPort( HANDLE handle, HANDLE port,
ULONG_PTR key, DWORD threads )
{
FILE_COMPLETION_INFORMATION info;
IO_STATUS_BLOCK iosb;
HANDLE ret = port;
TRACE( "(%p, %p, %08lx, %08x)\n", handle, port, key, threads );
if (!port)
{
if (!set_ntstatus( NtCreateIoCompletion( &ret, IO_COMPLETION_ALL_ACCESS, NULL, threads )))
return 0;
}
else if (handle == INVALID_HANDLE_VALUE)
{
SetLastError( ERROR_INVALID_PARAMETER );
return 0;
}
if (handle != INVALID_HANDLE_VALUE)
{
info.CompletionPort = ret;
info.CompletionKey = key;
if (!set_ntstatus( NtSetInformationFile( handle, &iosb, &info, sizeof(info), FileCompletionInformation )))
{
if (!port) CloseHandle( ret );
return 0;
}
}
return ret;
}
/******************************************************************************
* GetQueuedCompletionStatus (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetQueuedCompletionStatus( HANDLE port, LPDWORD count, PULONG_PTR key,
LPOVERLAPPED *overlapped, DWORD timeout )
{
NTSTATUS status;
IO_STATUS_BLOCK iosb;
LARGE_INTEGER wait_time;
TRACE( "(%p,%p,%p,%p,%d)\n", port, count, key, overlapped, timeout );
*overlapped = NULL;
status = NtRemoveIoCompletion( port, key, (PULONG_PTR)overlapped, &iosb,
get_nt_timeout( &wait_time, timeout ) );
if (status == STATUS_SUCCESS)
{
*count = iosb.Information;
if (iosb.u.Status >= 0) return TRUE;
SetLastError( RtlNtStatusToDosError(iosb.u.Status) );
return FALSE;
}
if (status == STATUS_TIMEOUT) SetLastError( WAIT_TIMEOUT );
else SetLastError( RtlNtStatusToDosError(status) );
return FALSE;
}
/******************************************************************************
* GetQueuedCompletionStatusEx (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetQueuedCompletionStatusEx( HANDLE port, OVERLAPPED_ENTRY *entries,
ULONG count, ULONG *written,
DWORD timeout, BOOL alertable )
{
LARGE_INTEGER time;
NTSTATUS ret;
TRACE( "%p %p %u %p %u %u\n", port, entries, count, written, timeout, alertable );
ret = NtRemoveIoCompletionEx( port, (FILE_IO_COMPLETION_INFORMATION *)entries, count,
written, get_nt_timeout( &time, timeout ), alertable );
if (ret == STATUS_SUCCESS) return TRUE;
else if (ret == STATUS_TIMEOUT) SetLastError( WAIT_TIMEOUT );
else if (ret == STATUS_USER_APC) SetLastError( WAIT_IO_COMPLETION );
else SetLastError( RtlNtStatusToDosError(ret) );
return FALSE;
}
/******************************************************************************
* PostQueuedCompletionStatus (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH PostQueuedCompletionStatus( HANDLE port, DWORD count,
ULONG_PTR key, LPOVERLAPPED overlapped )
{
TRACE( "%p %d %08lx %p\n", port, count, key, overlapped );
return set_ntstatus( NtSetIoCompletion( port, key, (ULONG_PTR)overlapped, STATUS_SUCCESS, count ));
}
/***********************************************************************
* Named pipes
***********************************************************************/
/***********************************************************************
* CallNamedPipeW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH CallNamedPipeW( LPCWSTR name, LPVOID input, DWORD in_size,
LPVOID output, DWORD out_size,
LPDWORD read_size, DWORD timeout )
{
HANDLE pipe;
BOOL ret;
DWORD mode;
TRACE( "%s %p %d %p %d %p %d\n", debugstr_w(name),
input, in_size, output, out_size, read_size, timeout );
pipe = CreateFileW( name, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL );
if (pipe == INVALID_HANDLE_VALUE)
{
if (!WaitNamedPipeW( name, timeout )) return FALSE;
pipe = CreateFileW( name, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL );
if (pipe == INVALID_HANDLE_VALUE) return FALSE;
}
mode = PIPE_READMODE_MESSAGE;
ret = SetNamedPipeHandleState( pipe, &mode, NULL, NULL );
if (ret) ret = TransactNamedPipe( pipe, input, in_size, output, out_size, read_size, NULL );
CloseHandle( pipe );
return ret;
}
/***********************************************************************
* ConnectNamedPipe (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH ConnectNamedPipe( HANDLE pipe, LPOVERLAPPED overlapped )
{
NTSTATUS status;
IO_STATUS_BLOCK status_block;
LPVOID cvalue = NULL;
TRACE( "(%p,%p)\n", pipe, overlapped );
if (overlapped)
{
overlapped->Internal = STATUS_PENDING;
overlapped->InternalHigh = 0;
if (((ULONG_PTR)overlapped->hEvent & 1) == 0) cvalue = overlapped;
}
status = NtFsControlFile( pipe, overlapped ? overlapped->hEvent : NULL, NULL, cvalue,
overlapped ? (IO_STATUS_BLOCK *)overlapped : &status_block,
FSCTL_PIPE_LISTEN, NULL, 0, NULL, 0 );
if (status == STATUS_PENDING && !overlapped)
{
WaitForSingleObject( pipe, INFINITE );
status = status_block.u.Status;
}
return set_ntstatus( status );
}
/***********************************************************************
* CreateNamedPipeW (kernelbase.@)
*/
HANDLE WINAPI DECLSPEC_HOTPATCH CreateNamedPipeW( LPCWSTR name, DWORD open_mode, DWORD pipe_mode,
DWORD instances, DWORD out_buff, DWORD in_buff,
DWORD timeout, LPSECURITY_ATTRIBUTES sa )
{
HANDLE handle;
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
DWORD access, options, sharing;
BOOLEAN pipe_type, read_mode, non_block;
NTSTATUS status;
IO_STATUS_BLOCK iosb;
LARGE_INTEGER time;
TRACE( "(%s, %#08x, %#08x, %d, %d, %d, %d, %p)\n", debugstr_w(name),
open_mode, pipe_mode, instances, out_buff, in_buff, timeout, sa );
if (!RtlDosPathNameToNtPathName_U( name, &nt_name, NULL, NULL ))
{
SetLastError( ERROR_PATH_NOT_FOUND );
return INVALID_HANDLE_VALUE;
}
if (nt_name.Length >= MAX_PATH * sizeof(WCHAR) )
{
SetLastError( ERROR_FILENAME_EXCED_RANGE );
RtlFreeUnicodeString( &nt_name );
return INVALID_HANDLE_VALUE;
}
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nt_name;
attr.Attributes = OBJ_CASE_INSENSITIVE | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
attr.SecurityQualityOfService = NULL;
switch (open_mode & 3)
{
case PIPE_ACCESS_INBOUND:
sharing = FILE_SHARE_WRITE;
access = GENERIC_READ;
break;
case PIPE_ACCESS_OUTBOUND:
sharing = FILE_SHARE_READ;
access = GENERIC_WRITE;
break;
case PIPE_ACCESS_DUPLEX:
sharing = FILE_SHARE_READ | FILE_SHARE_WRITE;
access = GENERIC_READ | GENERIC_WRITE;
break;
default:
SetLastError( ERROR_INVALID_PARAMETER );
return INVALID_HANDLE_VALUE;
}
access |= SYNCHRONIZE;
options = 0;
if (open_mode & WRITE_DAC) access |= WRITE_DAC;
if (open_mode & WRITE_OWNER) access |= WRITE_OWNER;
if (open_mode & ACCESS_SYSTEM_SECURITY) access |= ACCESS_SYSTEM_SECURITY;
if (open_mode & FILE_FLAG_WRITE_THROUGH) options |= FILE_WRITE_THROUGH;
if (!(open_mode & FILE_FLAG_OVERLAPPED)) options |= FILE_SYNCHRONOUS_IO_NONALERT;
pipe_type = (pipe_mode & PIPE_TYPE_MESSAGE) != 0;
read_mode = (pipe_mode & PIPE_READMODE_MESSAGE) != 0;
non_block = (pipe_mode & PIPE_NOWAIT) != 0;
if (instances >= PIPE_UNLIMITED_INSTANCES) instances = ~0U;
time.QuadPart = (ULONGLONG)timeout * -10000;
SetLastError( 0 );
status = NtCreateNamedPipeFile( &handle, access, &attr, &iosb, sharing,
FILE_OVERWRITE_IF, options, pipe_type,
read_mode, non_block, instances, in_buff, out_buff, &time );
RtlFreeUnicodeString( &nt_name );
if (!set_ntstatus( status )) return INVALID_HANDLE_VALUE;
return handle;
}
/******************************************************************
* CreatePipe (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH CreatePipe( HANDLE *read_pipe, HANDLE *write_pipe,
SECURITY_ATTRIBUTES *sa, DWORD size )
{
static unsigned int index;
WCHAR name[64];
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK iosb;
LARGE_INTEGER timeout;
*read_pipe = *write_pipe = INVALID_HANDLE_VALUE;
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.ObjectName = &nt_name;
attr.Attributes = OBJ_CASE_INSENSITIVE | ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
attr.SecurityQualityOfService = NULL;
if (!size) size = 4096;
timeout.QuadPart = (ULONGLONG)NMPWAIT_USE_DEFAULT_WAIT * -10000;
/* generate a unique pipe name (system wide) */
for (;;)
{
swprintf( name, ARRAY_SIZE(name), L"\\??\\pipe\\Win32.Pipes.%08lu.%08u",
GetCurrentProcessId(), ++index );
RtlInitUnicodeString( &nt_name, name );
if (!NtCreateNamedPipeFile( read_pipe, GENERIC_READ | FILE_WRITE_ATTRIBUTES | SYNCHRONIZE,
&attr, &iosb, FILE_SHARE_WRITE, FILE_OVERWRITE_IF,
FILE_SYNCHRONOUS_IO_NONALERT,
FALSE, FALSE, FALSE, 1, size, size, &timeout ))
break;
}
if (!set_ntstatus( NtOpenFile( write_pipe, GENERIC_WRITE | FILE_READ_ATTRIBUTES | SYNCHRONIZE, &attr,
&iosb, 0, FILE_SYNCHRONOUS_IO_NONALERT | FILE_NON_DIRECTORY_FILE )))
{
NtClose( *read_pipe );
return FALSE;
}
return TRUE;
}
/***********************************************************************
* DisconnectNamedPipe (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH DisconnectNamedPipe( HANDLE pipe )
{
IO_STATUS_BLOCK io_block;
TRACE( "(%p)\n", pipe );
return set_ntstatus( NtFsControlFile( pipe, 0, NULL, NULL, &io_block,
FSCTL_PIPE_DISCONNECT, NULL, 0, NULL, 0 ));
}
/***********************************************************************
* GetNamedPipeHandleStateW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetNamedPipeHandleStateW( HANDLE pipe, DWORD *state, DWORD *instances,
DWORD *max_count, DWORD *timeout,
WCHAR *user, DWORD size )
{
IO_STATUS_BLOCK io;
FIXME( "%p %p %p %p %p %p %d: semi-stub\n", pipe, state, instances, max_count, timeout, user, size );
if (max_count) *max_count = 0;
if (timeout) *timeout = 0;
if (user && size && !GetEnvironmentVariableW( L"WINEUSERNAME", user, size )) user[0] = 0;
if (state)
{
FILE_PIPE_INFORMATION info;
if (!set_ntstatus( NtQueryInformationFile( pipe, &io, &info, sizeof(info), FilePipeInformation )))
return FALSE;
*state = (info.ReadMode ? PIPE_READMODE_MESSAGE : PIPE_READMODE_BYTE) |
(info.CompletionMode ? PIPE_NOWAIT : PIPE_WAIT);
}
if (instances)
{
FILE_PIPE_LOCAL_INFORMATION info;
if (!set_ntstatus( NtQueryInformationFile( pipe, &io, &info, sizeof(info),
FilePipeLocalInformation)))
return FALSE;
*instances = info.CurrentInstances;
}
return TRUE;
}
/***********************************************************************
* GetNamedPipeInfo (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH GetNamedPipeInfo( HANDLE pipe, LPDWORD flags, LPDWORD out_size,
LPDWORD in_size, LPDWORD instances )
{
FILE_PIPE_LOCAL_INFORMATION info;
IO_STATUS_BLOCK iosb;
if (!set_ntstatus( NtQueryInformationFile( pipe, &iosb, &info, sizeof(info), FilePipeLocalInformation )))
return FALSE;
if (flags)
{
*flags = (info.NamedPipeEnd & FILE_PIPE_SERVER_END) ? PIPE_SERVER_END : PIPE_CLIENT_END;
*flags |= (info.NamedPipeType & FILE_PIPE_TYPE_MESSAGE) ? PIPE_TYPE_MESSAGE : PIPE_TYPE_BYTE;
}
if (out_size) *out_size = info.OutboundQuota;
if (in_size) *in_size = info.InboundQuota;
if (instances) *instances = info.MaximumInstances;
return TRUE;
}
/***********************************************************************
* PeekNamedPipe (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH PeekNamedPipe( HANDLE pipe, LPVOID out_buffer, DWORD size,
LPDWORD read_size, LPDWORD avail, LPDWORD message )
{
FILE_PIPE_PEEK_BUFFER local_buffer;
FILE_PIPE_PEEK_BUFFER *buffer = &local_buffer;
IO_STATUS_BLOCK io;
NTSTATUS status;
if (size && !(buffer = HeapAlloc( GetProcessHeap(), 0,
FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data[size] ))))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return FALSE;
}
status = NtFsControlFile( pipe, 0, NULL, NULL, &io, FSCTL_PIPE_PEEK, NULL, 0,
buffer, FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data[size] ) );
if (status == STATUS_BUFFER_OVERFLOW) status = STATUS_SUCCESS;
if (!status)
{
ULONG count = io.Information - FIELD_OFFSET( FILE_PIPE_PEEK_BUFFER, Data );
if (avail) *avail = buffer->ReadDataAvailable;
if (read_size) *read_size = count;
if (message) *message = buffer->MessageLength - count;
if (out_buffer) memcpy( out_buffer, buffer->Data, count );
}
else SetLastError( RtlNtStatusToDosError(status) );
if (buffer != &local_buffer) HeapFree( GetProcessHeap(), 0, buffer );
return !status;
}
/***********************************************************************
* SetNamedPipeHandleState (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH SetNamedPipeHandleState( HANDLE pipe, LPDWORD mode,
LPDWORD count, LPDWORD timeout )
{
FILE_PIPE_INFORMATION info;
IO_STATUS_BLOCK iosb;
NTSTATUS status = STATUS_SUCCESS;
TRACE( "%p %p/%d %p %p\n", pipe, mode, mode ? *mode : 0, count, timeout );
if (count || timeout) FIXME( "Unsupported arguments\n" );
if (mode)
{
if (*mode & ~(PIPE_READMODE_MESSAGE | PIPE_NOWAIT)) status = STATUS_INVALID_PARAMETER;
else
{
info.CompletionMode = (*mode & PIPE_NOWAIT) ?
FILE_PIPE_COMPLETE_OPERATION : FILE_PIPE_QUEUE_OPERATION;
info.ReadMode = (*mode & PIPE_READMODE_MESSAGE) ?
FILE_PIPE_MESSAGE_MODE : FILE_PIPE_BYTE_STREAM_MODE;
status = NtSetInformationFile( pipe, &iosb, &info, sizeof(info), FilePipeInformation );
}
}
return set_ntstatus( status );
}
/***********************************************************************
* TransactNamedPipe (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH TransactNamedPipe( HANDLE handle, LPVOID write_buf, DWORD write_size,
LPVOID read_buf, DWORD read_size, LPDWORD bytes_read,
LPOVERLAPPED overlapped)
{
IO_STATUS_BLOCK default_iosb, *iosb = &default_iosb;
HANDLE event = NULL;
void *cvalue = NULL;
NTSTATUS status;
TRACE( "%p %p %u %p %u %p %p\n", handle,
write_buf, write_size, read_buf, read_size, bytes_read, overlapped );
if (overlapped)
{
event = overlapped->hEvent;
iosb = (IO_STATUS_BLOCK *)overlapped;
if (((ULONG_PTR)event & 1) == 0) cvalue = overlapped;
}
else
{
iosb->Information = 0;
}
status = NtFsControlFile( handle, event, NULL, cvalue, iosb, FSCTL_PIPE_TRANSCEIVE,
write_buf, write_size, read_buf, read_size );
if (status == STATUS_PENDING && !overlapped)
{
WaitForSingleObject(handle, INFINITE);
status = iosb->u.Status;
}
if (bytes_read) *bytes_read = overlapped && status ? 0 : iosb->Information;
return set_ntstatus( status );
}
/***********************************************************************
* WaitNamedPipeW (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH WaitNamedPipeW( LPCWSTR name, DWORD timeout )
{
static const int prefix_len = sizeof(L"\\??\\PIPE\\") - sizeof(WCHAR);
NTSTATUS status;
UNICODE_STRING nt_name, pipe_dev_name;
FILE_PIPE_WAIT_FOR_BUFFER *pipe_wait;
IO_STATUS_BLOCK iosb;
OBJECT_ATTRIBUTES attr;
ULONG wait_size;
HANDLE pipe_dev;
TRACE( "%s 0x%08x\n", debugstr_w(name), timeout );
if (!RtlDosPathNameToNtPathName_U( name, &nt_name, NULL, NULL )) return FALSE;
if (nt_name.Length >= MAX_PATH * sizeof(WCHAR) ||
nt_name.Length < prefix_len ||
wcsnicmp( nt_name.Buffer, L"\\??\\PIPE\\", prefix_len / sizeof(WCHAR) ))
{
RtlFreeUnicodeString( &nt_name );
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
wait_size = offsetof( FILE_PIPE_WAIT_FOR_BUFFER, Name[(nt_name.Length - prefix_len) / sizeof(WCHAR)] );
if (!(pipe_wait = HeapAlloc( GetProcessHeap(), 0, wait_size)))
{
RtlFreeUnicodeString( &nt_name );
SetLastError( ERROR_OUTOFMEMORY );
return FALSE;
}
pipe_dev_name.Buffer = nt_name.Buffer;
pipe_dev_name.Length = prefix_len;
pipe_dev_name.MaximumLength = prefix_len;
InitializeObjectAttributes( &attr,&pipe_dev_name, OBJ_CASE_INSENSITIVE, NULL, NULL );
status = NtOpenFile( &pipe_dev, FILE_READ_ATTRIBUTES | SYNCHRONIZE, &attr,
&iosb, FILE_SHARE_READ | FILE_SHARE_WRITE,
FILE_SYNCHRONOUS_IO_NONALERT);
if (status != STATUS_SUCCESS)
{
HeapFree( GetProcessHeap(), 0, pipe_wait );
RtlFreeUnicodeString( &nt_name );
SetLastError( ERROR_PATH_NOT_FOUND );
return FALSE;
}
pipe_wait->TimeoutSpecified = !(timeout == NMPWAIT_USE_DEFAULT_WAIT);
if (timeout == NMPWAIT_WAIT_FOREVER)
pipe_wait->Timeout.QuadPart = ((ULONGLONG)0x7fffffff << 32) | 0xffffffff;
else
pipe_wait->Timeout.QuadPart = (ULONGLONG)timeout * -10000;
pipe_wait->NameLength = nt_name.Length - prefix_len;
memcpy( pipe_wait->Name, nt_name.Buffer + prefix_len/sizeof(WCHAR), pipe_wait->NameLength );
RtlFreeUnicodeString( &nt_name );
status = NtFsControlFile( pipe_dev, NULL, NULL, NULL, &iosb, FSCTL_PIPE_WAIT,
pipe_wait, wait_size, NULL, 0 );
HeapFree( GetProcessHeap(), 0, pipe_wait );
NtClose( pipe_dev );
return set_ntstatus( status );
}
/***********************************************************************
* Interlocked functions
***********************************************************************/
/***********************************************************************
* InitOnceBeginInitialize (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH InitOnceBeginInitialize( INIT_ONCE *once, DWORD flags,
BOOL *pending, void **context )
{
NTSTATUS status = RtlRunOnceBeginInitialize( once, flags, context );
if (status >= 0) *pending = (status == STATUS_PENDING);
else SetLastError( RtlNtStatusToDosError(status) );
return status >= 0;
}
/***********************************************************************
* InitOnceComplete (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH InitOnceComplete( INIT_ONCE *once, DWORD flags, void *context )
{
return set_ntstatus( RtlRunOnceComplete( once, flags, context ));
}
/***********************************************************************
* InitOnceExecuteOnce (kernelbase.@)
*/
BOOL WINAPI DECLSPEC_HOTPATCH InitOnceExecuteOnce( INIT_ONCE *once, PINIT_ONCE_FN func,
void *param, void **context )
{
return !RtlRunOnceExecuteOnce( once, (PRTL_RUN_ONCE_INIT_FN)func, param, context );
}
#ifdef __i386__
/***********************************************************************
* InterlockedCompareExchange (kernelbase.@)
*/
__ASM_STDCALL_FUNC(InterlockedCompareExchange, 12,
"movl 12(%esp),%eax\n\t"
"movl 8(%esp),%ecx\n\t"
"movl 4(%esp),%edx\n\t"
"lock; cmpxchgl %ecx,(%edx)\n\t"
"ret $12")
/***********************************************************************
* InterlockedExchange (kernelbase.@)
*/
__ASM_STDCALL_FUNC(InterlockedExchange, 8,
"movl 8(%esp),%eax\n\t"
"movl 4(%esp),%edx\n\t"
"lock; xchgl %eax,(%edx)\n\t"
"ret $8")
/***********************************************************************
* InterlockedExchangeAdd (kernelbase.@)
*/
__ASM_STDCALL_FUNC(InterlockedExchangeAdd, 8,
"movl 8(%esp),%eax\n\t"
"movl 4(%esp),%edx\n\t"
"lock; xaddl %eax,(%edx)\n\t"
"ret $8")
/***********************************************************************
* InterlockedIncrement (kernelbase.@)
*/
__ASM_STDCALL_FUNC(InterlockedIncrement, 4,
"movl 4(%esp),%edx\n\t"
"movl $1,%eax\n\t"
"lock; xaddl %eax,(%edx)\n\t"
"incl %eax\n\t"
"ret $4")
/***********************************************************************
* InterlockedDecrement (kernelbase.@)
*/
__ASM_STDCALL_FUNC(InterlockedDecrement, 4,
"movl 4(%esp),%edx\n\t"
"movl $-1,%eax\n\t"
"lock; xaddl %eax,(%edx)\n\t"
"decl %eax\n\t"
"ret $4")
#endif /* __i386__ */