dcb9ffc6f2
When the transport is terminated, if an error has occured, it will be propagated to the channels. When such errors can happen at the SCTP level (e.g. out of resources), RTCError may contain an error code matching the definition at https://www.iana.org/assignments/sctp-parameters/sctp-parameters.xhtml#sctp-parameters-24 If the m= line is rejected or removed from SDP, an error will again be sent to the data channels, signaling their unexpected transition to closed. Bug: webrtc:12904 Change-Id: Iea3d8aba0a57bbedb5d03f0fb6f7aba292e92fe8 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/223541 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Florent Castelli <orphis@webrtc.org> Cr-Commit-Position: refs/heads/master@{#34386}
55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
/*
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* Copyright 2019 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 PC_SCTP_DATA_CHANNEL_TRANSPORT_H_
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#define PC_SCTP_DATA_CHANNEL_TRANSPORT_H_
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#include "api/rtc_error.h"
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#include "api/transport/data_channel_transport_interface.h"
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#include "media/base/media_channel.h"
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#include "media/sctp/sctp_transport_internal.h"
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#include "rtc_base/copy_on_write_buffer.h"
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#include "rtc_base/third_party/sigslot/sigslot.h"
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namespace webrtc {
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// SCTP implementation of DataChannelTransportInterface.
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class SctpDataChannelTransport : public DataChannelTransportInterface,
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public sigslot::has_slots<> {
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public:
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explicit SctpDataChannelTransport(
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cricket::SctpTransportInternal* sctp_transport);
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RTCError OpenChannel(int channel_id) override;
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RTCError SendData(int channel_id,
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const SendDataParams& params,
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const rtc::CopyOnWriteBuffer& buffer) override;
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RTCError CloseChannel(int channel_id) override;
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void SetDataSink(DataChannelSink* sink) override;
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bool IsReadyToSend() const override;
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private:
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void OnReadyToSendData();
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void OnDataReceived(const cricket::ReceiveDataParams& params,
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const rtc::CopyOnWriteBuffer& buffer);
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void OnClosingProcedureStartedRemotely(int channel_id);
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void OnClosingProcedureComplete(int channel_id);
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void OnClosedAbruptly(RTCError error);
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cricket::SctpTransportInternal* const sctp_transport_;
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DataChannelSink* sink_ = nullptr;
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bool ready_to_send_ = false;
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};
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} // namespace webrtc
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#endif // PC_SCTP_DATA_CHANNEL_TRANSPORT_H_
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