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// Copyright 2015 Google Inc. All Rights Reserved.
//
// 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 COBALT_TRACE_EVENT_JSON_FILE_OUTPUTTER_H_
#define COBALT_TRACE_EVENT_JSON_FILE_OUTPUTTER_H_
#include "base/file_path.h"
#include "base/memory/ref_counted.h"
#include "base/memory/ref_counted_memory.h"
#include "base/platform_file.h"
namespace cobalt {
namespace trace_event {
// This class is a helper class to provide a callback for
// base::debug::TraceLog::Flush() calls so that the JSON produced by TraceLog
// can be directed to a file on disc.
class JSONFileOutputter {
public:
explicit JSONFileOutputter(const FilePath& output_path);
~JSONFileOutputter();
void OutputTraceData(
const scoped_refptr<base::RefCountedString>& event_string);
bool GetError() const { return file_ == base::kInvalidPlatformFileValue; }
private:
void Write(const char* buffer, size_t length);
void Close();
FilePath output_path_;
base::PlatformFile file_;
int output_trace_event_call_count_;
};
} // namespace trace_event
} // namespace cobalt
#endif // COBALT_TRACE_EVENT_JSON_FILE_OUTPUTTER_H_