src/ftrace_reader/test/scattered_stream_null_delegate.h

/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * 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
 *
 *      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.
 */

#ifndef SRC_FTRACE_READER_TEST_SCATTERED_STREAM_NULL_DELEGATE_H_
#define SRC_FTRACE_READER_TEST_SCATTERED_STREAM_NULL_DELEGATE_H_

#include <memory>
#include <vector>

#include "perfetto/base/logging.h"
#include "perfetto/protozero/scattered_stream_writer.h"

namespace perfetto {

class ScatteredStreamNullDelegate
    : public protozero::ScatteredStreamWriter::Delegate {
 public:
  explicit ScatteredStreamNullDelegate(size_t chunk_size);
  ~ScatteredStreamNullDelegate() override;

  // protozero::ScatteredStreamWriter::Delegate implementation.
  protozero::ContiguousMemoryRange GetNewBuffer() override;

 private:
  const size_t chunk_size_;
  std::unique_ptr<uint8_t[]> chunk_;
};

}  // namespace perfetto

#endif  // SRC_FTRACE_READER_TEST_SCATTERED_STREAM_NULL_DELEGATE_H_