adsd3500_interrupt_notifier.h

Go to the documentation of this file.

/*
 * BSD 3-Clause License
 *
 * Copyright (c) 2019, Analog Devices, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#include <aditof/status_definitions.h>
#include <memory>
#include <signal.h>
#include <vector>
 
class Adsd3500Sensor;
 
class Adsd3500InterruptNotifier final {
  private:
    Adsd3500InterruptNotifier() = default;
 
  public:
    Adsd3500InterruptNotifier(const Adsd3500InterruptNotifier &) = delete;
    ~Adsd3500InterruptNotifier() = default;
    void operator=(const Adsd3500InterruptNotifier &) = delete;
    Adsd3500InterruptNotifier(Adsd3500InterruptNotifier &&) noexcept = default;
    Adsd3500InterruptNotifier &
    operator=(Adsd3500InterruptNotifier &&) noexcept = default;
 
  public:
    static Adsd3500InterruptNotifier &getInstance();
    aditof::Status enableInterrupts();
    aditof::Status disableInterrupts();
    bool interruptsAvailable();
    void subscribeSensor(std::weak_ptr<Adsd3500Sensor> sensor);
    void unsubscribeSensor(std::weak_ptr<Adsd3500Sensor> sensor);
 
  private:
    static void signalEventHandler(int n, siginfo_t *info, void *unused);
 
  private:
    static std::vector<std::weak_ptr<Adsd3500Sensor>> m_sensors;
    bool m_interruptsAvailable;
};