ASharedRaiiHelper

Shared completion marker for multithreaded callback-based future handling.

Header:	#include <AUI/Util/ASharedRaiiHelper.h>
CMake:	aui_link(my_target PUBLIC aui::core)

Detailed Description

ASharedRaiiHelper is intended to track the completion of multiple futures, exploiting the destruction of AFuture::onSuccess or AFuture::onError callbacks when they called. This approach allows to easily integrate ASharedRaiiHelper to the existing code.

Note that the callback will be called even if onSuccess is not.

auto marker = ASharedRaiiHelper::make([] {
    // will be called when all futures called onSuccess or destroyed
});
auto future = AUI_THREADPOOL {
    // hard work
}
//                      VVVVVV ASharedRaiiHelper should be captured!
future.onSuccess([this, marker]() {
    // handle the hard work
});

// keep the future alive in AUI_THREADPOOL holder
mAsyncHolder << future;