/*

* Copyright (c) 2017 Spotify AB.

*

* Licensed to the Apache Software Foundation (ASF) under one

* or more contributor license agreements. See the NOTICE file

* distributed with this work for additional information

* regarding copyright ownership. The ASF licenses this file

* to you 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

*

* http://www.apache.org/licenses/LICENSE-2.0

*

* 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 <NFDecoder/DataProvider.h>

#include <NFDecoder/DataProviderFactory.h>

#include <atomic>

#include <string>

namespace nativeformat {

namespace decoder {

typedef std::function<void(bool)> LOAD_DATA_PROVIDER_CALLBACK;

class DataProviderFileImplementation : public DataProvider {

public:

typedef enum : int { ErrorCodeCouldNotReadFile } ErrorCode;

DataProviderFileImplementation(const std::string &path);

virtual ~DataProviderFileImplementation();

// DataProvider

virtual size_t read(void *ptr, size_t size, size_t nmemb);

virtual int seek(long offset, int whence);

virtual long tell();

virtual const std::string &path();

virtual bool eof();

virtual long size();

virtual void load(const ERROR_DATA_PROVIDER_CALLBACK &data_provider_error_callback,

const LOAD_DATA_PROVIDER_CALLBACK &data_provider_load_callback);

virtual const std::string &name();

private:

const std::string _path;

FILE *_handle;

std::atomic<long> _size;

};

} // namespace decoder

} // namespace nativeformat