ipc/handle_attachment_win.cc

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ipc/handle_attachment_win.h"

#include <windows.h>

#include "base/win/windows_handle_util.h"

namespace IPC {
namespace internal {

HandleAttachmentWin::HandleAttachmentWin(const HANDLE& handle) {
  // Do not duplicate pseudo handle values, leave handle_ empty.
  if (!handle || base::win::IsPseudoHandle(handle)) {
    return;
  }
  HANDLE duplicated_handle = nullptr;
  BOOL result =
      ::DuplicateHandle(GetCurrentProcess(), handle, GetCurrentProcess(),
                        &duplicated_handle, 0, FALSE, DUPLICATE_SAME_ACCESS);
  if (result) {
    handle_.Set(duplicated_handle);
  }
}

HandleAttachmentWin::HandleAttachmentWin(const HANDLE& handle,
                                         FromWire from_wire)
    : handle_(handle) {}

HandleAttachmentWin::~HandleAttachmentWin() {}

MessageAttachment::Type HandleAttachmentWin::GetType() const {
  return Type::WIN_HANDLE;
}

}  // namespace internal
}  // namespace IPC