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/*
* Copyright 2019 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 PC_SCTP_DATA_CHANNEL_TRANSPORT_H_
#define PC_SCTP_DATA_CHANNEL_TRANSPORT_H_
#include "api/transport/data_channel_transport_interface.h"
#include "media/sctp/sctp_transport_internal.h"
#include "rtc_base/third_party/sigslot/sigslot.h"
namespace webrtc {
// SCTP implementation of DataChannelTransportInterface.
class SctpDataChannelTransport : public DataChannelTransportInterface,
public sigslot::has_slots<> {
public:
explicit SctpDataChannelTransport(
cricket::SctpTransportInternal* sctp_transport);
RTCError OpenChannel(int channel_id) override;
RTCError SendData(int channel_id,
const SendDataParams& params,
const rtc::CopyOnWriteBuffer& buffer) override;
RTCError CloseChannel(int channel_id) override;
void SetDataSink(DataChannelSink* sink) override;
bool IsReadyToSend() const override;
private:
void OnReadyToSendData();
void OnDataReceived(const cricket::ReceiveDataParams& params,
const rtc::CopyOnWriteBuffer& buffer);
void OnClosingProcedureStartedRemotely(int channel_id);
void OnClosingProcedureComplete(int channel_id);
cricket::SctpTransportInternal* const sctp_transport_;
DataChannelSink* sink_ = nullptr;
bool ready_to_send_ = false;
};
} // namespace webrtc
#endif // PC_SCTP_DATA_CHANNEL_TRANSPORT_H_