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Sorry for the nonatomic commit

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svn path=/trunk/; revision=15386
This commit is contained in:
Alex Ionescu 2005-05-17 19:16:21 +00:00
parent 437e9f05fc
commit 2e000e7b38
1 changed files with 0 additions and 109 deletions
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109
reactos/ntoskrnl/io/fs.c
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@ -62,115 +62,6 @@ IoCancelFileOpen(
UNIMPLEMENTED;
}
/*
* @implemented
*/
NTSTATUS STDCALL
NtFsControlFile (
IN HANDLE DeviceHandle,
IN HANDLE EventHandle OPTIONAL,
IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
IN PVOID ApcContext OPTIONAL,
OUT PIO_STATUS_BLOCK IoStatusBlock,
IN ULONG IoControlCode,
IN PVOID InputBuffer,
IN ULONG InputBufferSize,
OUT PVOID OutputBuffer,
IN ULONG OutputBufferSize
)
{
NTSTATUS Status;
PFILE_OBJECT FileObject;
PDEVICE_OBJECT DeviceObject;
PIRP Irp;
PIO_STACK_LOCATION StackPtr;
PKEVENT ptrEvent;
KPROCESSOR_MODE PreviousMode;
DPRINT("NtFsControlFile(DeviceHandle %x EventHandle %x ApcRoutine %x "
"ApcContext %x IoStatusBlock %x IoControlCode %x "
"InputBuffer %x InputBufferSize %x OutputBuffer %x "
"OutputBufferSize %x)\n",
DeviceHandle,EventHandle,ApcRoutine,ApcContext,IoStatusBlock,
IoControlCode,InputBuffer,InputBufferSize,OutputBuffer,
OutputBufferSize);
PreviousMode = ExGetPreviousMode();
/* Check granted access against the access rights from IoContolCode */
Status = ObReferenceObjectByHandle(DeviceHandle,
(IoControlCode >> 14) & 0x3,
NULL,
PreviousMode,
(PVOID *) &FileObject,
NULL);
if (!NT_SUCCESS(Status))
{
return Status;
}
if (EventHandle != NULL)
{
Status = ObReferenceObjectByHandle(EventHandle,
SYNCHRONIZE,
ExEventObjectType,
PreviousMode,
(PVOID*)&ptrEvent,
NULL);
if (!NT_SUCCESS(Status))
{
ObDereferenceObject(FileObject);
return Status;
}
}
else
{
KeResetEvent(&FileObject->Event);
ptrEvent = &FileObject->Event;
}
DeviceObject = FileObject->DeviceObject;
Irp = IoBuildDeviceIoControlRequest(IoControlCode,
DeviceObject,
InputBuffer,
InputBufferSize,
OutputBuffer,
OutputBufferSize,
FALSE,
ptrEvent,
IoStatusBlock);
/* Trigger FileObject/Event dereferencing */
Irp->Tail.Overlay.OriginalFileObject = FileObject;
Irp->RequestorMode = PreviousMode;
Irp->Overlay.AsynchronousParameters.UserApcRoutine = ApcRoutine;
Irp->Overlay.AsynchronousParameters.UserApcContext = ApcContext;
StackPtr = IoGetNextIrpStackLocation(Irp);
StackPtr->FileObject = FileObject;
StackPtr->DeviceObject = DeviceObject;
StackPtr->Parameters.FileSystemControl.InputBufferLength = InputBufferSize;
StackPtr->Parameters.FileSystemControl.OutputBufferLength =
OutputBufferSize;
StackPtr->MajorFunction = IRP_MJ_FILE_SYSTEM_CONTROL;
Status = IoCallDriver(DeviceObject,Irp);
if (Status == STATUS_PENDING && (FileObject->Flags & FO_SYNCHRONOUS_IO))
{
KeWaitForSingleObject(ptrEvent,
Executive,
PreviousMode,
FileObject->Flags & FO_ALERTABLE_IO,
NULL);
Status = IoStatusBlock->Status;
}
return Status;
}
VOID INIT_FUNCTION
IoInitFileSystemImplementation(VOID)
{