windows-server-2003/drivers/serveravailability/ddk/watchdog/mswd.h

/*++

Copyright (c) 1991 - 2002 Microsoft Corporation

Module Name:

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@@BEGIN_DDKSPLIT
Abstract:

    This header file contains the definitions for the
    virtual watchdog miniport driver.

@@END_DDKSPLIT
Author:

    Wesley Witt (wesw) 1-Oct-2001

Environment:

    Kernel mode only.

Notes:


--*/

extern "C" {
#include <ntddk.h>
#include <stdio.h>
}

#define DEFAULT_WD_TIMEOUT_SECS (2*60)

#define SecToNano(_sec)         ((_sec) * 1000 * 1000 * 10)
#define NanoToSec(_nano)        ((_nano) / (1000 * 1000 * 10))


#define MINIPORT_DEVICE_TYPE    SA_DEVICE_WATCHDOG

#include "saport.h"

typedef struct _DEVICE_EXTENSION {
    PDEVICE_OBJECT  DeviceObject;
    FAST_MUTEX      WdIoLock;
    ULONG           Enabled;
    ULONG           ExpireBehavior;
    KTIMER          Timer;
    KDPC            TimerDpc;
    LARGE_INTEGER   StartTime;
    LARGE_INTEGER   TimeoutValue;
} DEVICE_EXTENSION, *PDEVICE_EXTENSION;


//
// prototypes
//

extern "C" {

NTSTATUS
DriverEntry(
    IN PDRIVER_OBJECT DriverObject,
    IN PUNICODE_STRING RegistryPath
    );

} // extern "C"