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// Copyright 2016 The Chromium 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 COMPONENTS_TRACING_TEST_FAKE_SCATTERED_BUFFER_H_
#define COMPONENTS_TRACING_TEST_FAKE_SCATTERED_BUFFER_H_
#include <memory>
#include <string>
#include <vector>
#include "base/macros.h"
#include "components/tracing/core/scattered_stream_writer.h"
#include "components/tracing/tracing_export.h"
namespace tracing {
namespace v2 {
// A simple ScatteredStreamWriter::Delegate implementation which just allocates
// chunks of a fixed size.
class FakeScatteredBuffer : public ScatteredStreamWriter::Delegate {
public:
explicit FakeScatteredBuffer(size_t chunk_size);
~FakeScatteredBuffer() override;
// ScatteredStreamWriter::Delegate implementation.
ContiguousMemoryRange GetNewBuffer() override;
std::string GetChunkAsString(int chunk_index);
void GetBytes(size_t start, size_t length, uint8_t* buf);
std::string GetBytesAsString(size_t start, size_t length);
const std::vector<std::unique_ptr<uint8_t[]>>& chunks() const {
return chunks_;
}
private:
const size_t chunk_size_;
std::vector<std::unique_ptr<uint8_t[]>> chunks_;
DISALLOW_COPY_AND_ASSIGN(FakeScatteredBuffer);
};
} // namespace v2
} // namespace tracing
#endif // COMPONENTS_TRACING_TEST_FAKE_SCATTERED_BUFFER_H_
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