58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
#pragma once
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#include "os/Win32/WindowsHeaders.h"
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#include <windows.foundation.collections.h>
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#include <wrl.h>
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namespace il2cpp
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{
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namespace winrt
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{
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template<typename T>
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class SynchronousOperation : Microsoft::WRL::RuntimeClass<Microsoft::WRL::RuntimeClassFlags<Microsoft::WRL::WinRtClassicComMix>, ABI::Windows::Foundation::IAsyncOperationCompletedHandler<T> >
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{
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private:
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HANDLE m_Event;
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HRESULT m_HR;
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T m_Result;
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public:
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inline SynchronousOperation(ABI::Windows::Foundation::IAsyncOperation<T>* op)
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{
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m_Event = CreateEventExW(nullptr, nullptr, CREATE_EVENT_MANUAL_RESET, EVENT_ALL_ACCESS);
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Assert(m_Event);
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auto hr = op->put_Completed(this);
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Assert(SUCCEEDED(hr));
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}
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inline ~SynchronousOperation()
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{
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CloseHandle(m_Event);
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}
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HRESULT GetResults(T* result)
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{
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auto waitResult = WaitForSingleObjectEx(m_Event, INFINITE, FALSE);
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if (waitResult != WAIT_OBJECT_0)
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return E_FAIL;
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if (FAILED(m_HR))
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return m_HR;
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*result = m_Result;
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return S_OK;
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}
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private:
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virtual HRESULT STDMETHODCALLTYPE Invoke(ABI::Windows::Foundation::IAsyncOperation<T>* asyncInfo, ABI::Windows::Foundation::AsyncStatus status) override
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{
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m_HR = asyncInfo->GetResults(&m_Result);
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SetEvent(m_Event);
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return S_OK;
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}
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};
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}
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}
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