6bedebfb7a
Some applications explicitly require RFC3550 style RTP without ICE. Port number requirement of RFC3550 section 11 will be addressed in a follow-up CL. BUG=webrtc:6436 Review-Url: https://codereview.webrtc.org/2377883003 Cr-Commit-Position: refs/heads/master@{#15005}
97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
/*
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* Copyright 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_P2P_BASE_UDPTRANSPORTCHANNEL_H_
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#define WEBRTC_P2P_BASE_UDPTRANSPORTCHANNEL_H_
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#include <memory>
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#include <string>
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#include "webrtc/base/optional.h"
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#include "webrtc/base/thread_checker.h"
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#include "webrtc/p2p/base/packettransportinterface.h"
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namespace rtc {
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class AsyncPacketSocket;
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class PhysicalSocketServer;
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class SocketAddress;
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class SocketServer;
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class Thread;
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}
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namespace cricket {
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class UdpTransportChannel : public rtc::PacketTransportInterface {
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public:
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enum class State { INIT, CONNECTING, CONNECTED, FAILED };
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explicit UdpTransportChannel(const std::string& transport_name);
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UdpTransportChannel(const std::string& transport_name, rtc::SocketServer* ss);
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~UdpTransportChannel();
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const std::string debug_name() const override { return transport_name_; }
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bool receiving() const override {
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// TODO(johan): Implement method and signal.
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return true;
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}
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bool writable() const override;
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int SendPacket(const char* data,
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size_t len,
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const rtc::PacketOptions& options,
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int flags) override;
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int SetOption(rtc::Socket::Option opt, int value) override { return 0; }
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int GetError() override { return send_error_; }
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State state() const {
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RTC_DCHECK_RUN_ON(&network_thread_checker_);
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return state_;
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}
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// Start() makes UdpTransportChannel transition from state INIT to CONNECTING.
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// It creates the local UDP socket and binds it to a port.
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// Consider checking state() after calling Start().
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void Start();
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void SetRemoteParameters(const rtc::SocketAddress& remote);
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// Returned optional does not have a value if in the INIT or FAILED state.
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// Consider checking state() before calling local_parameters().
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rtc::Optional<rtc::SocketAddress> local_parameters() const {
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return local_parameters_;
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}
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private:
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void OnSocketReadPacket(rtc::AsyncPacketSocket* socket,
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const char* data,
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size_t len,
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const rtc::SocketAddress& remote_addr,
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const rtc::PacketTime& packet_time);
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void OnSocketSentPacket(rtc::AsyncPacketSocket* socket,
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const rtc::SentPacket& packet);
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void SetState(State state); // Set State and Signal.
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bool IsLocalConsistent();
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void UpdateState();
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std::string transport_name_;
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rtc::SocketServer* socket_server_;
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State state_ = State::INIT;
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int send_error_ = 0;
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std::unique_ptr<rtc::AsyncPacketSocket> socket_;
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rtc::Optional<rtc::SocketAddress> local_parameters_;
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rtc::Optional<rtc::SocketAddress> remote_parameters_;
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rtc::ThreadChecker network_thread_checker_;
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};
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} // namespace cricket
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#endif // WEBRTC_P2P_BASE_UDPTRANSPORTCHANNEL_H_
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