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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_OPENSCREEN_PLATFORM_UDP_SOCKET_H_
#define COMPONENTS_OPENSCREEN_PLATFORM_UDP_SOCKET_H_
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/network/public/mojom/udp_socket.mojom.h"
#include "third_party/openscreen/src/platform/api/udp_socket.h"
#include "third_party/openscreen/src/platform/base/error.h"
#include "third_party/openscreen/src/platform/base/interface_info.h"
#include "third_party/openscreen/src/platform/base/ip_address.h"
namespace net {
class IPEndPoint;
}
namespace openscreen_platform {
class UdpSocket final : public openscreen::UdpSocket,
network::mojom::UDPSocketListener {
public:
UdpSocket(Client* client,
const openscreen::IPEndpoint& local_endpoint,
mojo::Remote<network::mojom::UDPSocket> udp_socket,
mojo::PendingReceiver<network::mojom::UDPSocketListener>
pending_listener);
~UdpSocket() final;
// Implementations of openscreen::UdpSocket methods.
bool IsIPv4() const final;
bool IsIPv6() const final;
openscreen::IPEndpoint GetLocalEndpoint() const final;
void Bind() final;
void SetMulticastOutboundInterface(
openscreen::NetworkInterfaceIndex ifindex) final;
void JoinMulticastGroup(const openscreen::IPAddress& address,
openscreen::NetworkInterfaceIndex ifindex) final;
void SendMessage(openscreen::ByteView data,
const openscreen::IPEndpoint& dest) final;
void SetDscp(openscreen::UdpSocket::DscpMode state) final;
// network::mojom::UDPSocketListener overrides:
void OnReceived(int32_t net_result,
const std::optional<net::IPEndPoint>& source_endpoint,
std::optional<base::span<const uint8_t>> data) override;
private:
void BindCallback(int32_t result,
const std::optional<net::IPEndPoint>& address);
void JoinGroupCallback(int32_t result);
void SendCallback(int32_t result);
const raw_ptr<Client> client_ = nullptr;
// The local endpoint can change as a result of bind calls.
openscreen::IPEndpoint local_endpoint_;
mojo::Remote<network::mojom::UDPSocket> udp_socket_;
// The pending listener gets converted to a proper Receiver when this socket
// gets bound.
mojo::PendingReceiver<network::mojom::UDPSocketListener> pending_listener_;
mojo::Receiver<network::mojom::UDPSocketListener> listener_{this};
base::WeakPtrFactory<UdpSocket> weak_ptr_factory_{this};
};
} // namespace openscreen_platform
#endif // COMPONENTS_OPENSCREEN_PLATFORM_UDP_SOCKET_H_
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