BloomPatched/src/Helpers/ConditionVariableNotifier.hpp

#pragma once

#include <mutex>
#include <condition_variable>
#include <chrono>
#include <optional>

#include "NotifierInterface.hpp"

namespace Bloom
{
    /**
     * The ConditionVariableNotifier class is an implementation of the NotifierInterface, using an
     * std::condition_variable.
     */
    class ConditionVariableNotifier: public NotifierInterface
    {
    public:
        ConditionVariableNotifier() = default;
        ~ConditionVariableNotifier() override = default;

        /*
         * ConditionVariableNotifier objects should not be copied.
         */
        ConditionVariableNotifier(ConditionVariableNotifier& other) = delete;
        ConditionVariableNotifier& operator = (ConditionVariableNotifier& other) = delete;

        /*
         * TODO: Implement this.
         */
        ConditionVariableNotifier(ConditionVariableNotifier&& other) noexcept = delete;
        ConditionVariableNotifier& operator = (ConditionVariableNotifier&& other) = delete;

        void notify() override;

        /**
         * Blocks until the contained std::conditional_variable is notified.
         */
        void waitForNotification(std::optional<std::chrono::milliseconds> timeout = std::nullopt);

    private:
        std::mutex mutex;
        std::condition_variable conditionalVariable;
        bool notified = false;
    };
}