tmp.c/worker.h

// Copyright 2025 Vincent Batts <vbatts@hashbangbash.com>

// https://en.cppreference.com/w/cpp/thread/thread
// https://en.cppreference.com/w/cpp/thread/mutex
// https://en.cppreference.com/w/cpp/thread/condition_variable

#ifndef WORKER_H_
#define WORKER_H_

#include <iostream>
#include <thread>
#include <condition_variable>
#include <mutex>

namespace Dang {

class Worker {
  public:
    Worker() {
      this->ready = false;
    }

    void run() {
      std::unique_lock<std::mutex> lock(this->mtx);
      // Wait until 'ready' is set to true
      this->cv.wait(lock, [this] { return this->ready; });
      std::cout << "Daemon process woke up!" << std::endl;
    }

    int work() {
      std::thread daemon([this] {this->run();});

      std::this_thread::sleep_for(std::chrono::seconds(5));
      {
        std::lock_guard<std::mutex> lock(this->mtx);
        this->ready = true;
      }
      this->cv.notify_one();

      daemon.join();
      return 0;
    }

  private:
    std::mutex mtx;
    std::condition_variable cv;
    bool ready;
};

}  // namespace Dang

#endif  // WORKER_H_

// vim:set sts=2 sw=2 et: