/*

 * Copyright (c) 2020 Red Hat, Inc.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 * 

 * This program 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 General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

 * 02110-1301, USA. 

 *

 * $Id: //eng/vdo-releases/aluminum/src/c++/vdo/kernel/kernelTypes.h#3 $

 */

#ifndef KERNEL_TYPES_H

#define KERNEL_TYPES_H

#include "types.h"

/**

 * The size of a discard request in bytes.

 **/

typedef uint32_t DiscardSize;

/**

 * A time in jiffies.

 **/

typedef uint64_t Jiffies;

/**

 * A timeout in jiffies.

 **/

typedef int64_t TimeoutJiffies;

typedef struct atomicBioStats AtomicBioStats;

typedef struct bio            BIO;

typedef struct dataKVIO       DataKVIO;

typedef struct dedupeContext  DedupeContext;

typedef struct dedupeIndex    DedupeIndex;

typedef struct ioSubmitter    IOSubmitter;

typedef struct kernelLayer    KernelLayer;

typedef struct kvdo           KVDO;

typedef struct kvdoFlush      KVDOFlush;

typedef struct kvdoWorkItem   KvdoWorkItem;

typedef struct kvdoWorkQueue  KvdoWorkQueue;

typedef struct kvio           KVIO;

typedef void (*KVIOCallback)(KVIO *kvio);

typedef void (*DataKVIOCallback)(DataKVIO *dataKVIO);

typedef void (*KvdoWorkFunction)(KvdoWorkItem *workItem);

/**

 * Method type for layer matching methods.

 *

 * A LayerFilter method returns false if the layer doesn't match.

 **/

typedef bool LayerFilter(KernelLayer *layer, void *context);

#endif /* KERNEL_TYPES_H */