// 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_PUBLIC_BROWSER_PROFILER_CONTROLLER_H_
#define CONTENT_PUBLIC_BROWSER_PROFILER_CONTROLLER_H_
#include <set>
#include <string>
#include "base/tracked_objects.h"
#include "content/common/content_export.h"
namespace base {
class DictionaryValue;
}
namespace content {
class ProfilerSubscriber;
// ProfilerController is used on the browser process to collect profiler data.
// Only the browser UI thread is allowed to interact with the ProfilerController
// object.
class CONTENT_EXPORT ProfilerController {
public:
// Returns the ProfilerController object for the current process, or NULL if
// none.
static ProfilerController* GetInstance();
virtual ~ProfilerController() {}
// Register the subscriber so that it will be called when for example
// OnProfilerDataCollected is returning profiler data from a child process.
// This is called on UI thread.
virtual void Register(ProfilerSubscriber* subscriber) = 0;
// Unregister the subscriber so that it will not be called when for example
// OnProfilerDataCollected is returning profiler data from a child process.
// Safe to call even if caller is not the current subscriber.
virtual void Unregister(const ProfilerSubscriber* subscriber) = 0;
// Contact all processes and get their profiler data.
virtual void GetProfilerData(int sequence_number) = 0;
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_PROFILER_CONTROLLER_H_