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// Copyright 2016 the V8 project 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 V8_LIBPLATFORM_TRACING_TRACE_WRITER_H_
#define V8_LIBPLATFORM_TRACING_TRACE_WRITER_H_
#include "include/libplatform/v8-tracing.h"
namespace v8 {
namespace platform {
namespace tracing {
class Recorder;
class JSONTraceWriter : public TraceWriter {
public:
explicit JSONTraceWriter(std::ostream& stream);
JSONTraceWriter(std::ostream& stream, const std::string& tag);
~JSONTraceWriter() override;
void AppendTraceEvent(TraceObject* trace_event) override;
void Flush() override;
private:
void AppendArgValue(uint8_t type, TraceObject::ArgValue value);
void AppendArgValue(v8::ConvertableToTraceFormat*);
std::ostream& stream_;
bool append_comma_ = false;
};
#if defined(V8_ENABLE_SYSTEM_INSTRUMENTATION)
class SystemInstrumentationTraceWriter : public TraceWriter {
public:
SystemInstrumentationTraceWriter();
~SystemInstrumentationTraceWriter() override;
void AppendTraceEvent(TraceObject* trace_event) override;
void Flush() override;
private:
std::unique_ptr<Recorder> recorder_;
};
#endif
} // namespace tracing
} // namespace platform
} // namespace v8
#endif // V8_LIBPLATFORM_TRACING_TRACE_WRITER_H_
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