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// Copyright (c) 2012 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 CONTENT_BROWSER_TRACING_TRACE_SUBSCRIBER_STDIO_H_
#define CONTENT_BROWSER_TRACING_TRACE_SUBSCRIBER_STDIO_H_
#include <string>
#include "base/compiler_specific.h"
#include "content/public/browser/trace_subscriber.h"
#include "content/common/content_export.h"
namespace base {
class FilePath;
}
namespace content {
// Stdio implementation of TraceSubscriber. Use this to write traces to a file.
class CONTENT_EXPORT TraceSubscriberStdio
: NON_EXPORTED_BASE(public TraceSubscriber) {
public:
enum FileType {
// Output file as array, representing trace events:
// [event1, event2, ...]
FILE_TYPE_ARRAY,
// Output file as property list with one or two items:
// {traceEvents: [event1, event2, ...],
// systemTraceEvents: "event1\nevent2\n..." // optional}
FILE_TYPE_PROPERTY_LIST
};
// has_system_trace indicates whether system trace events are expected.
TraceSubscriberStdio(const base::FilePath& path,
FileType file_type,
bool has_system_trace);
virtual ~TraceSubscriberStdio();
// Implementation of TraceSubscriber
virtual void OnEndTracingComplete() OVERRIDE;
virtual void OnTraceDataCollected(
const scoped_refptr<base::RefCountedString>& data_ptr) OVERRIDE;
// To be used as callback to DebugDaemonClient::RequestStopSystemTracing().
virtual void OnEndSystemTracing(
const scoped_refptr<base::RefCountedString>& events_str_ptr);
private:
class TraceSubscriberStdioWorker;
scoped_refptr<TraceSubscriberStdioWorker> worker_;
DISALLOW_COPY_AND_ASSIGN(TraceSubscriberStdio);
};
} // namespace content
#endif // CONTENT_BROWSER_TRACING_TRACE_SUBSCRIBER_STDIO_H_
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