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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2014 Red Hat
* Copyright (C) 2020 Abutalib Aghayev
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#ifndef CEPH_BLK_HMSMRDEVICE_H
#define CEPH_BLK_HMSMRDEVICE_H
#include <atomic>
#include "include/types.h"
#include "include/interval_set.h"
#include "common/Thread.h"
#include "include/utime.h"
#include "aio/aio.h"
#include "BlockDevice.h"
#include "../kernel/KernelDevice.h"
class HMSMRDevice final : public KernelDevice {
int zbd_fd = -1; ///< fd for the zoned block device
public:
HMSMRDevice(CephContext* cct, aio_callback_t cb, void *cbpriv,
aio_callback_t d_cb, void *d_cbpriv);
static bool support(const std::string& path);
// open/close hooks for libzbd
int _post_open() override;
void _pre_close() override;
// smr-specific methods
bool is_smr() const final { return true; }
void reset_all_zones() override;
void reset_zone(uint64_t zone) override;
std::vector<uint64_t> get_zones() override;
};
#endif //CEPH_BLK_HMSMRDEVICE_H
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