promise.h

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#pragma once
 
 
#include <promeki/config.h>
#if PROMEKI_ENABLE_CORE
#include <future>
#include <utility>
#include <promeki/namespace.h>
#include <promeki/future.h>
 
PROMEKI_NAMESPACE_BEGIN
 
template <typename T> class Promise {
        public:
                Promise() = default;
 
                ~Promise() = default;
 
                Promise(const Promise &) = delete;
                Promise &operator=(const Promise &) = delete;
 
                Promise(Promise &&other) = default;
 
                Promise &operator=(Promise &&other) = default;
 
                void setValue(T value) { _promise.set_value(std::move(value)); }
 
                void setError(Error error) { _promise.set_exception(std::make_exception_ptr(PromiseError(error))); }
 
                Future<T> future() { return Future<T>(_promise.get_future()); }
 
        private:
                std::promise<T> _promise;
};
 
template <> class Promise<void> {
        public:
                Promise() = default;
 
                ~Promise() = default;
 
                Promise(const Promise &) = delete;
                Promise &operator=(const Promise &) = delete;
                Promise(Promise &&other) = default;
                Promise &operator=(Promise &&other) = default;
 
                void setValue() { _promise.set_value(); }
 
                void setError(Error error) { _promise.set_exception(std::make_exception_ptr(PromiseError(error))); }
 
                Future<void> future() { return Future<void>(_promise.get_future()); }
 
        private:
                std::promise<void> _promise;
};
 
PROMEKI_NAMESPACE_END
 
#endif // PROMEKI_ENABLE_CORE