src/devices/block/drivers/ftl/tests/ftl-shell.h

// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SRC_DEVICES_BLOCK_DRIVERS_FTL_TESTS_FTL_SHELL_H_
#define SRC_DEVICES_BLOCK_DRIVERS_FTL_TESTS_FTL_SHELL_H_

#include <lib/ftl/volume.h>

#include "ndm-ram-driver.h"

// Placeholder for an FTL driver, for testing purposes. The implementation uses
// an NdmRamDriver at the lower layer interface.
class FtlShell : public ftl::FtlInstance {
 public:
  FtlShell() : volume_(this) {}
  virtual ~FtlShell() {}

  bool Init(const ftl::VolumeOptions& options);
  bool InitWithDriver(std::unique_ptr<NdmRamDriver> driver);
  bool ReAttach();

  ftl::Volume* volume() { return &volume_; }
  uint32_t page_size() const { return page_size_; }
  uint32_t num_pages() const { return num_pages_; }

  // FtlInstance interface.
  bool OnVolumeAdded(uint32_t page_size, uint32_t num_pages) final;

 private:
  ftl::VolumeImpl volume_;
  uint32_t page_size_ = 0;
  uint32_t num_pages_ = 0;
};

#endif  // SRC_DEVICES_BLOCK_DRIVERS_FTL_TESTS_FTL_SHELL_H_