| // This file is part of OpenCV project. | |
| // It is subject to the license terms in the LICENSE file found in the top-level directory | |
| // of this distribution and at http://opencv.org/license.html. | |
| // | |
| // Copyright (C) 2019 Intel Corporation | |
| namespace cv { | |
| //fwd declaration | |
| class GCompiled; | |
| namespace gapi{ | |
| namespace wip { | |
| class GAsyncContext; | |
| /** | |
| These functions asynchronously (i.e. probably on a separate thread of execution) call GCompiled::operator() member function of their first argument with copies of rest of arguments (except callback) passed in. | |
| The difference between the function is the way to get the completion notification (via callback or a waiting on std::future object) | |
| If exception is occurred during execution of apply it is transferred to the callback (via function parameter) or passed to future (and will be thrown on call to std::future::get) | |
| N.B. : | |
| Input arguments are copied on call to async function (actually on call to cv::gin) and thus do not have to outlive the actual completion of asynchronous activity. | |
| While output arguments are "captured" by reference(pointer) and therefore _must_ outlive the asynchronous activity | |
| (i.e. live at least until callback is called or future is unblocked) | |
| @param gcmpld Compiled computation (graph) to start asynchronously | |
| @param callback Callback to be called when execution of gcmpld is done | |
| @param ins Input parameters for gcmpld | |
| @param outs Output parameters for gcmpld | |
| */ | |
| GAPI_EXPORTS void async(GCompiled& gcmpld, std::function<void(std::exception_ptr)>&& callback, GRunArgs &&ins, GRunArgsP &&outs); | |
| /** @overload | |
| @param gcmpld Compiled computation (graph) to run asynchronously | |
| @param callback Callback to be called when execution of gcmpld is done | |
| @param ins Input parameters for gcmpld | |
| @param outs Output parameters for gcmpld | |
| @param ctx Context this request belongs to | |
| @see async GAsyncContext | |
| */ | |
| GAPI_EXPORTS void async(GCompiled& gcmpld, std::function<void(std::exception_ptr)>&& callback, GRunArgs &&ins, GRunArgsP &&outs, GAsyncContext& ctx); | |
| /** @overload | |
| @param gcmpld Compiled computation (graph) to run asynchronously | |
| @param ins Input parameters for gcmpld | |
| @param outs Output parameters for gcmpld | |
| @return std::future<void> object to wait for completion of async operation | |
| @see async | |
| */ | |
| GAPI_EXPORTS std::future<void> async(GCompiled& gcmpld, GRunArgs &&ins, GRunArgsP &&outs); | |
| /** | |
| @param gcmpld Compiled computation (graph) to run asynchronously | |
| @param ins Input parameters for gcmpld | |
| @param outs Output parameters for gcmpld | |
| @param ctx Context this request belongs to | |
| @return std::future<void> object to wait for completion of async operation | |
| @see async GAsyncContext | |
| */ | |
| GAPI_EXPORTS std::future<void> async(GCompiled& gcmpld, GRunArgs &&ins, GRunArgsP &&outs, GAsyncContext& ctx); | |
| } // namespace wip | |
| } // namespace gapi | |
| } // namespace cv | |