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67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_QUIC_TEST_TOOLS_SIMULATOR_ACTOR_H_
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#define NET_QUIC_TEST_TOOLS_SIMULATOR_ACTOR_H_
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#include <string>
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#include "net/quic/core/quic_time.h"
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#include "net/quic/platform/api/quic_clock.h"
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namespace net {
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namespace simulator {
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class Simulator;
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// Actor is the base class for all participants of the simulation which can
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// schedule events to be triggered at the specified time. Every actor has a
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// name assigned to it, which can be used for debugging and addressing purposes.
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//
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// The Actor object is scheduled as follows:
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// 1. Every Actor object appears at most once in the event queue, for one
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// specific time.
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// 2. Actor is scheduled by calling Schedule() method.
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// 3. If Schedule() method is called with multiple different times specified,
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// Act() method will be called at the earliest time specified.
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// 4. Before Act() is called, the Actor is removed from the event queue. Act()
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// will not be called again unless Schedule() is called.
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class Actor {
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public:
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Actor(Simulator* simulator, std::string name);
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virtual ~Actor();
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// Trigger all the events the actor can potentially handle at this point.
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// Before Act() is called, the actor is removed from the event queue, and has
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// to schedule the next call manually.
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virtual void Act() = 0;
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inline std::string name() const { return name_; }
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inline Simulator* simulator() const { return simulator_; }
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protected:
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// Calls Schedule() on the associated simulator.
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void Schedule(QuicTime next_tick);
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// Calls Unschedule() on the associated simulator.
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void Unschedule();
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Simulator* simulator_;
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const QuicClock* clock_;
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std::string name_;
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private:
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// Since the Actor object registers itself with a simulator using a pointer to
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// itself, do not allow it to be moved.
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Actor(Actor&&) = delete;
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Actor& operator=(Actor&&) = delete;
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DISALLOW_COPY_AND_ASSIGN(Actor);
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};
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} // namespace simulator
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} // namespace net
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#endif // NET_QUIC_TEST_TOOLS_SIMULATOR_ACTOR_H_
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