chromium/services/network/public/cpp/transferable_socket_mojom_traits.cc

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "services/network/public/cpp/transferable_socket_mojom_traits.h"

#include <algorithm>
#include <vector>

#include "base/dcheck_is_on.h"
#include "build/build_config.h"
#include "mojo/public/cpp/bindings/struct_traits.h"

namespace mojo {

#if BUILDFLAG(IS_WIN)
// static
const std::vector<uint8_t>&
StructTraits<network::mojom::TransferableSocketDataView,
             network::TransferableSocket>::
    protocol_info(const network::TransferableSocket& value) {
#if DCHECK_IS_ON()
  DCHECK(!value.has_been_transferred_) << "Can only transfer once.";
#endif
  return value.wsa_info_buffer_;
}
#else
mojo::PlatformHandle StructTraits<
    network::mojom::TransferableSocketDataView,
    network::TransferableSocket>::socket(network::TransferableSocket& value) { … }
#endif  // BUILDFLAG(IS_WIN)

// static
bool StructTraits<network::mojom::TransferableSocketDataView,
                  network::TransferableSocket>::
    Read(network::mojom::TransferableSocketDataView in,
         network::TransferableSocket* out) { … }

}  // namespace mojo