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#ifndef CHRYSALIS_BASEOBSERVABLE_H |
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#define CHRYSALIS_BASEOBSERVABLE_H |
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#include <set> |
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#include <mutex> |
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/** |
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* @defgroup Observers Observers |
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* @{ |
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*/ |
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namespace Chrysalis { |
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template<typename T> |
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class BaseObservable { |
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protected: |
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explicit BaseObservable() = default; |
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virtual ~BaseObservable() = default; |
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public: |
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template<typename... Args, typename... CallArgs> |
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void notify(void(T::*function)(Args...), CallArgs&&... args) const { |
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std::lock_guard lock(mutex_); |
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for (const auto& observer: observers_) { |
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(observer->*function)(std::forward<CallArgs>(args)...); |
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} |
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} |
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void addObserver(T* observer) { |
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std::lock_guard lock(mutex_); |
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observers_.insert(observer); |
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} |
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void removeObserver(T* observer) { |
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std::lock_guard lock(mutex_); |
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observers_.erase(observer); |
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} |
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private: |
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std::set<T*> observers_; |
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mutable std::mutex mutex_; |
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}; |
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} |
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/**@}*/ |
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#endif //CHRYSALIS_BASEOBSERVABLE_H |
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