blob: c1d7d9818777dc5f7dc0e241fe1b3e737c7b9991 [file] [log] [blame]
// Copyright 2022 The Pigweed Authors
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#pragma once
#include "pw_stream/stream.h"
namespace pw::software_update {
// A SeekableReader that needs Open/Closed state management. This abstraction
// decouples pw_software_update from pw_blob_store.
class OpenableReader {
virtual Status Open() = 0;
virtual Status Close() = 0;
virtual bool IsOpen() = 0;
// Returns the underlying SeekableReader. Must only be called after a
// successful call to Open, before the matching call to Close.
virtual stream::SeekableReader& reader() = 0;
virtual ~OpenableReader() = default;
} // namespace pw::software_update