LibCarla/source/carla/client/LaneInvasionSensor.h

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// Copyright (c) 2019 Computer Vision Center (CVC) at the Universitat Autonoma
// de Barcelona (UAB).
//
// This work is licensed under the terms of the MIT license.
// For a copy, see <https://opensource.org/licenses/MIT>.
 
#pragma once
 
#include "carla/client/ClientSideSensor.h"
 
#include <atomic>
 
namespace carla {
namespace client {
 
  class Map;
  class Vehicle;
 
  class LaneInvasionSensor final : public ClientSideSensor {
  public:
 
    using ClientSideSensor::ClientSideSensor;
 
    ~LaneInvasionSensor();
 
    /// Register a @a callback to be executed each time a new measurement is
    /// received.
    ///
    /// @warning Calling this function on a sensor that is already listening
    /// steals the data stream from the previously set callback. Note that
    /// several instances of Sensor (even in different processes) may point to
    /// the same sensor in the simulator.
    void Listen(CallbackFunctionType callback) override;
 
    /// Stop listening for new measurements.
    void Stop() override;
 
    /// Return whether this Sensor instance is currently listening to the
    /// associated sensor in the simulator.
    bool IsListening() const override {
      return _callback_id != 0u;
    }
 
  private:
 
    std::atomic_size_t _callback_id{0u};
  };
 
} // namespace client
} // namespace carla