91 lines
3.5 KiB
C++
91 lines
3.5 KiB
C++
/*
|
|
* Copyright 2016 The WebRTC project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#ifndef WEBRTC_API_QUICDATATRANSPORT_H_
|
|
#define WEBRTC_API_QUICDATATRANSPORT_H_
|
|
|
|
#include <string>
|
|
#include <unordered_map>
|
|
|
|
#include "webrtc/api/datachannelinterface.h"
|
|
#include "webrtc/api/quicdatachannel.h"
|
|
#include "webrtc/base/scoped_ref_ptr.h"
|
|
#include "webrtc/base/sigslot.h"
|
|
#include "webrtc/base/thread.h"
|
|
|
|
namespace cricket {
|
|
class QuicTransportChannel;
|
|
class ReliableQuicStream;
|
|
} // namepsace cricket
|
|
|
|
namespace webrtc {
|
|
|
|
// QuicDataTransport creates QuicDataChannels for the PeerConnection. It also
|
|
// handles QUIC stream demuxing by distributing incoming QUIC streams from the
|
|
// QuicTransportChannel among the QuicDataChannels that it has created.
|
|
//
|
|
// QuicDataTransport reads the data channel ID from the incoming QUIC stream,
|
|
// then looks it up in a map of ID => QuicDataChannel. If the data channel
|
|
// exists, it sends the QUIC stream to the QuicDataChannel.
|
|
class QuicDataTransport : public sigslot::has_slots<> {
|
|
public:
|
|
QuicDataTransport(rtc::Thread* signaling_thread, rtc::Thread* worker_thread);
|
|
~QuicDataTransport() override;
|
|
|
|
// Sets the QUIC transport channel for the QuicDataChannels and the
|
|
// QuicDataTransport. Returns false if a different QUIC transport channel is
|
|
// already set, the QUIC transport channel cannot be set for any of the
|
|
// QuicDataChannels, or |channel| is NULL.
|
|
bool SetTransportChannel(cricket::QuicTransportChannel* channel);
|
|
|
|
// Creates a QuicDataChannel that uses this QuicDataTransport.
|
|
rtc::scoped_refptr<DataChannelInterface> CreateDataChannel(
|
|
const std::string& label,
|
|
const DataChannelInit* config);
|
|
|
|
// Removes a QuicDataChannel with the given ID from the QuicDataTransport's
|
|
// data channel map.
|
|
void DestroyDataChannel(int id);
|
|
|
|
// True if the QuicDataTransport has a data channel with the given ID.
|
|
bool HasDataChannel(int id) const;
|
|
|
|
// True if the QuicDataTransport has data channels.
|
|
bool HasDataChannels() const;
|
|
|
|
private:
|
|
// Called from the QuicTransportChannel when a ReliableQuicStream is created
|
|
// to receive incoming data.
|
|
void OnIncomingStream(cricket::ReliableQuicStream* stream);
|
|
// Called from the ReliableQuicStream when the first QUIC stream frame is
|
|
// received for incoming data. The QuicDataTransport reads the data channel ID
|
|
// and message ID from the incoming data, then dispatches the
|
|
// ReliableQuicStream to the QuicDataChannel with the same data channel ID.
|
|
void OnDataReceived(net::QuicStreamId stream_id,
|
|
const char* data,
|
|
size_t len);
|
|
|
|
// Map of data channel ID => QUIC data channel values.
|
|
std::unordered_map<int, rtc::scoped_refptr<QuicDataChannel>>
|
|
data_channel_by_id_;
|
|
// Map of QUIC stream ID => ReliableQuicStream* values.
|
|
std::unordered_map<net::QuicStreamId, cricket::ReliableQuicStream*>
|
|
quic_stream_by_id_;
|
|
// QuicTransportChannel for sending/receiving data.
|
|
cricket::QuicTransportChannel* quic_transport_channel_ = nullptr;
|
|
// Signaling and worker threads for the QUIC data channel.
|
|
rtc::Thread* const signaling_thread_;
|
|
rtc::Thread* const worker_thread_;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // WEBRTC_API_QUICDATATRANSPORT_H_
|