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Sorry for the nonatomic commit

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svn path=/trunk/; revision=15383
This commit is contained in:
Alex Ionescu 2005-05-17 19:06:59 +00:00
parent fe3de87064
commit 437e9f05fc
1 changed files with 0 additions and 125 deletions
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125
reactos/ntoskrnl/io/device.c
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@ -1110,129 +1110,4 @@ IoValidateDeviceIoControlAccess(IN PIRP Irp,
return STATUS_NOT_IMPLEMENTED;
}
/*
* @implemented
*/
NTSTATUS
STDCALL
NtDeviceIoControlFile(IN HANDLE DeviceHandle,
IN HANDLE Event OPTIONAL,
IN PIO_APC_ROUTINE UserApcRoutine OPTIONAL,
IN PVOID UserApcContext OPTIONAL,
OUT PIO_STATUS_BLOCK IoStatusBlock,
IN ULONG IoControlCode,
IN PVOID InputBuffer,
IN ULONG InputBufferLength OPTIONAL,
OUT PVOID OutputBuffer,
IN ULONG OutputBufferLength OPTIONAL)
{
NTSTATUS Status = STATUS_SUCCESS;
PFILE_OBJECT FileObject;
PDEVICE_OBJECT DeviceObject;
PIRP Irp;
PIO_STACK_LOCATION StackPtr;
PKEVENT EventObject = NULL;
BOOLEAN LocalEvent = FALSE;
KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
DPRINT("NtDeviceIoControlFile(DeviceHandle %x Event %x UserApcRoutine %x "
"UserApcContext %x IoStatusBlock %x IoControlCode %x "
"InputBuffer %x InputBufferLength %x OutputBuffer %x "
"OutputBufferLength %x)\n",
DeviceHandle,Event,UserApcRoutine,UserApcContext,IoStatusBlock,
IoControlCode,InputBuffer,InputBufferLength,OutputBuffer,
OutputBufferLength);
if (IoStatusBlock == NULL) return STATUS_ACCESS_VIOLATION;
/* Check granted access against the access rights from IoContolCode */
Status = ObReferenceObjectByHandle(DeviceHandle,
(IoControlCode >> 14) & 0x3,
IoFileObjectType,
PreviousMode,
(PVOID *) &FileObject,
NULL);
if (!NT_SUCCESS(Status)) return Status;
/* Check for an event */
if (Event)
{
/* Reference it */
Status = ObReferenceObjectByHandle(Event,
EVENT_MODIFY_STATE,
ExEventObjectType,
PreviousMode,
(PVOID*)&EventObject,
NULL);
if (!NT_SUCCESS(Status))
{
ObDereferenceObject (FileObject);
return Status;
}
/* Clear it */
KeClearEvent(EventObject);
}
/* Check if this is a direct open or not */
if (FileObject->Flags & FO_DIRECT_DEVICE_OPEN)
{
DeviceObject = IoGetAttachedDevice(FileObject->DeviceObject);
}
else
{
DeviceObject = IoGetRelatedDeviceObject(FileObject);
}
/* Check if we should use Sync IO or not */
if (FileObject->Flags & FO_SYNCHRONOUS_IO)
{
/* Use File Object event */
KeClearEvent(&FileObject->Event);
}
else
{
/* Use local event */
LocalEvent = TRUE;
}
/* Build the IRP */
Irp = IoBuildDeviceIoControlRequest(IoControlCode,
DeviceObject,
InputBuffer,
InputBufferLength,
OutputBuffer,
OutputBufferLength,
FALSE,
EventObject,
IoStatusBlock);
/* Set some extra settings */
Irp->Tail.Overlay.OriginalFileObject = FileObject;
Irp->RequestorMode = PreviousMode;
Irp->Overlay.AsynchronousParameters.UserApcRoutine = UserApcRoutine;
Irp->Overlay.AsynchronousParameters.UserApcContext = UserApcContext;
StackPtr = IoGetNextIrpStackLocation(Irp);
StackPtr->FileObject = FileObject;
/* Call the Driver */
Status = IoCallDriver(DeviceObject, Irp);
if (Status == STATUS_PENDING)
{
if (!LocalEvent)
{
KeWaitForSingleObject(&FileObject->Event,
Executive,
PreviousMode,
FileObject->Flags & FO_ALERTABLE_IO,
NULL);
Status = FileObject->FinalStatus;
}
}
/* Return the Status */
return Status;
}
/* EOF */