mirror of
https://github.com/mii443/libdatachannel.git
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95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
/**
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* Copyright (c) 2019 Paul-Louis Ageneau
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef RTC_IMPL_DATA_CHANNEL_H
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#define RTC_IMPL_DATA_CHANNEL_H
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#include "channel.hpp"
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#include "common.hpp"
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#include "message.hpp"
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#include "peerconnection.hpp"
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#include "queue.hpp"
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#include "reliability.hpp"
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#include "sctptransport.hpp"
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#include <atomic>
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namespace rtc::impl {
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struct PeerConnection;
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struct DataChannel : Channel, std::enable_shared_from_this<DataChannel> {
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DataChannel(weak_ptr<PeerConnection> pc, uint16_t stream, string label, string protocol,
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Reliability reliability);
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virtual ~DataChannel();
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void close();
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void remoteClose();
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bool outgoing(message_ptr message);
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void incoming(message_ptr message);
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optional<message_variant> receive() override;
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optional<message_variant> peek() override;
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size_t availableAmount() const override;
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uint16_t stream() const;
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string label() const;
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string protocol() const;
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Reliability reliability() const;
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bool isOpen(void) const;
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bool isClosed(void) const;
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size_t maxMessageSize() const;
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void shiftStream();
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virtual void open(shared_ptr<SctpTransport> transport);
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virtual void processOpenMessage(message_ptr);
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protected:
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const weak_ptr<impl::PeerConnection> mPeerConnection;
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weak_ptr<SctpTransport> mSctpTransport;
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uint16_t mStream;
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string mLabel;
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string mProtocol;
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shared_ptr<Reliability> mReliability;
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mutable std::shared_mutex mMutex;
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Queue<message_ptr> mRecvQueue;
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std::atomic<bool> mIsOpen = false;
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std::atomic<bool> mIsClosed = false;
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};
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struct NegotiatedDataChannel final : public DataChannel {
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NegotiatedDataChannel(weak_ptr<PeerConnection> pc, uint16_t stream, string label,
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string protocol, Reliability reliability);
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NegotiatedDataChannel(weak_ptr<PeerConnection> pc,
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weak_ptr<SctpTransport> transport, uint16_t stream);
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~NegotiatedDataChannel();
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void open(impl_ptr<SctpTransport> transport) override;
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void processOpenMessage(message_ptr message) override;
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};
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} // namespace rtc::impl
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#endif
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