chromium/mojo/public/cpp/system/file_data_source.h

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MOJO_PUBLIC_CPP_SYSTEM_FILE_DATA_SOURCE_H_
#define MOJO_PUBLIC_CPP_SYSTEM_FILE_DATA_SOURCE_H_

#include "base/containers/span.h"
#include "base/files/file.h"
#include "mojo/public/cpp/system/data_pipe_producer.h"
#include "mojo/public/cpp/system/system_export.h"

namespace mojo {

// A class to wrap base::File as DataPipeProducer::DataSource class. Reads at
// most |max_bytes| bytes from the file.
class MOJO_CPP_SYSTEM_EXPORT FileDataSource final
    : public DataPipeProducer::DataSource { … };

}  // namespace mojo

#endif  // MOJO_PUBLIC_CPP_SYSTEM_FILE_DATA_SOURCE_H_