// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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#ifndef OPENCV_CORE_ASYNC_PROMISE_HPP
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#define OPENCV_CORE_ASYNC_PROMISE_HPP
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#include "../async.hpp"
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#include "exception_ptr.hpp"
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namespace cv {
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/** @addtogroup core_async
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@{
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*/
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/** @brief Provides result of asynchronous operations
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*/
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class CV_EXPORTS AsyncPromise
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{
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public:
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~AsyncPromise() CV_NOEXCEPT;
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AsyncPromise() CV_NOEXCEPT;
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explicit AsyncPromise(const AsyncPromise& o) CV_NOEXCEPT;
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AsyncPromise& operator=(const AsyncPromise& o) CV_NOEXCEPT;
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void release() CV_NOEXCEPT;
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/** Returns associated AsyncArray
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@note Can be called once
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*/
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AsyncArray getArrayResult();
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/** Stores asynchronous result.
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@param[in] value result
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*/
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void setValue(InputArray value);
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// TODO "move" setters
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#if CV__EXCEPTION_PTR
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/** Stores exception.
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@param[in] exception exception to be raised in AsyncArray
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*/
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void setException(std::exception_ptr exception);
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#endif
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/** Stores exception.
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@param[in] exception exception to be raised in AsyncArray
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*/
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void setException(const cv::Exception& exception);
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#ifdef CV_CXX11
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explicit AsyncPromise(AsyncPromise&& o) { p = o.p; o.p = NULL; }
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AsyncPromise& operator=(AsyncPromise&& o) CV_NOEXCEPT { std::swap(p, o.p); return *this; }
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#endif
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// PImpl
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typedef struct AsyncArray::Impl Impl; friend struct AsyncArray::Impl;
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inline void* _getImpl() const CV_NOEXCEPT { return p; }
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protected:
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Impl* p;
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};
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//! @}
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} // namespace
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#endif // OPENCV_CORE_ASYNC_PROMISE_HPP
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