119 lines
2.9 KiB
C++
119 lines
2.9 KiB
C++
//
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// detail/impl/buffer_sequence_adapter.ipp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef ASIO_DETAIL_IMPL_BUFFER_SEQUENCE_ADAPTER_IPP
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#define ASIO_DETAIL_IMPL_BUFFER_SEQUENCE_ADAPTER_IPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/config.hpp"
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#if defined(ASIO_WINDOWS_RUNTIME)
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#include <robuffer.h>
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#include <windows.storage.streams.h>
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#include <wrl/implements.h>
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#include "asio/detail/buffer_sequence_adapter.hpp"
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#include "asio/detail/push_options.hpp"
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namespace asio {
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namespace detail {
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class winrt_buffer_impl :
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public Microsoft::WRL::RuntimeClass<
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Microsoft::WRL::RuntimeClassFlags<
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Microsoft::WRL::RuntimeClassType::WinRtClassicComMix>,
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ABI::Windows::Storage::Streams::IBuffer,
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Windows::Storage::Streams::IBufferByteAccess>
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{
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public:
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explicit winrt_buffer_impl(const asio::const_buffer& b)
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{
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bytes_ = const_cast<byte*>(static_cast<const byte*>(b.data()));
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length_ = b.size();
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capacity_ = b.size();
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}
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explicit winrt_buffer_impl(const asio::mutable_buffer& b)
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{
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bytes_ = static_cast<byte*>(b.data());
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length_ = 0;
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capacity_ = b.size();
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}
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~winrt_buffer_impl()
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{
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}
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STDMETHODIMP Buffer(byte** value)
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{
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*value = bytes_;
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return S_OK;
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}
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STDMETHODIMP get_Capacity(UINT32* value)
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{
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*value = capacity_;
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return S_OK;
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}
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STDMETHODIMP get_Length(UINT32 *value)
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{
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*value = length_;
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return S_OK;
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}
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STDMETHODIMP put_Length(UINT32 value)
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{
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if (value > capacity_)
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return E_INVALIDARG;
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length_ = value;
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return S_OK;
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}
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private:
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byte* bytes_;
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UINT32 length_;
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UINT32 capacity_;
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};
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void buffer_sequence_adapter_base::init_native_buffer(
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buffer_sequence_adapter_base::native_buffer_type& buf,
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const asio::mutable_buffer& buffer)
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{
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std::memset(&buf, 0, sizeof(native_buffer_type));
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Microsoft::WRL::ComPtr<IInspectable> insp
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= Microsoft::WRL::Make<winrt_buffer_impl>(buffer);
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buf = reinterpret_cast<Windows::Storage::Streams::IBuffer^>(insp.Get());
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}
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void buffer_sequence_adapter_base::init_native_buffer(
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buffer_sequence_adapter_base::native_buffer_type& buf,
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const asio::const_buffer& buffer)
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{
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std::memset(&buf, 0, sizeof(native_buffer_type));
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Microsoft::WRL::ComPtr<IInspectable> insp
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= Microsoft::WRL::Make<winrt_buffer_impl>(buffer);
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Platform::Object^ buf_obj = reinterpret_cast<Platform::Object^>(insp.Get());
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buf = reinterpret_cast<Windows::Storage::Streams::IBuffer^>(insp.Get());
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}
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} // namespace detail
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // defined(ASIO_WINDOWS_RUNTIME)
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#endif // ASIO_DETAIL_IMPL_BUFFER_SEQUENCE_ADAPTER_IPP
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