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// Copyright 2015 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 REMOTING_TEST_CONNECTION_TIME_OBSERVER_H_
#define REMOTING_TEST_CONNECTION_TIME_OBSERVER_H_
#include <map>
#include "remoting/test/remote_connection_observer.h"
namespace base {
class TimeDelta;
class Timer;
}
namespace remoting {
namespace test {
// Observes and saves the times when a chromoting client changes its state. It
// allows for tests to access latency times between the different states the
// client transitioned through.
class ConnectionTimeObserver
: public RemoteConnectionObserver {
public:
ConnectionTimeObserver();
~ConnectionTimeObserver() override;
// RemoteConnectionObserver interface.
void ConnectionStateChanged(protocol::ConnectionToHost::State state,
protocol::ErrorCode error_code) override;
// Prints out connection performance stats to STDOUT.
void DisplayConnectionStats() const;
// Returns the time delta in milliseconds between |start_state| and
// |end_state| stored in |transition_times_map_|.
base::TimeDelta GetStateTransitionTime(
protocol::ConnectionToHost::State start,
protocol::ConnectionToHost::State end) const;
// Used to set fake state transition times for ConnectionTimeObserver tests.
void SetTransitionTimesMapForTest(
const std::map<protocol::ConnectionToHost::State, base::TimeTicks>& map);
private:
// Saves the current connection state of client to host.
protocol::ConnectionToHost::State current_connection_state_ =
protocol::ConnectionToHost::State::INITIALIZING;
// The TimeTicks to get to a state from the previous state.
std::map<protocol::ConnectionToHost::State, base::TimeTicks>
transition_times_map_;
DISALLOW_COPY_AND_ASSIGN(ConnectionTimeObserver);
};
} // namespace test
} // namespace remoting
#endif // REMOTING_TEST_CONNECTION_TIME_OBSERVER_H_
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