PEVENT_CONTEXT
AllocateEventContext(
__in PDEVICE_EXTENSION DeviceExtension,
__in PIRP Irp,
__in ULONG EventContextLength,
__in PDokanCCB Ccb
)
{
ULONG driverContextLength;
PDRIVER_EVENT_CONTEXT driverEventContext;
PEVENT_CONTEXT eventContext;
driverContextLength = EventContextLength - sizeof(EVENT_CONTEXT) + sizeof(DRIVER_EVENT_CONTEXT);
driverEventContext = ExAllocatePool(driverContextLength);
if (driverEventContext == NULL)
return NULL;
RtlZeroMemory(driverEventContext, driverContextLength);
InitializeListHead(&driverEventContext->ListEntry);
eventContext = &driverEventContext->EventContext;
eventContext->Length = EventContextLength;
SetCommonEventContext(DeviceExtension, eventContext, Irp, Ccb);
eventContext->SerialNumber = InterlockedIncrement(&DeviceExtension->SerialNumber);
return eventContext;
}
PEVENT_CONTEXT
AllocateEventContext(__in PDokanDCB Dcb, __in PIRP Irp,
__in ULONG EventContextLength, __in_opt PDokanCCB Ccb) {
PEVENT_CONTEXT eventContext;
eventContext = AllocateEventContextRaw(EventContextLength);
if (eventContext == NULL) {
return NULL;
}
SetCommonEventContext(Dcb, eventContext, Irp, Ccb);
eventContext->SerialNumber = InterlockedIncrement((LONG *)&Dcb->SerialNumber);
return eventContext;
}
