121 lines
3.7 KiB
C++
121 lines
3.7 KiB
C++
/*
|
|
* 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.
|
|
*/
|
|
|
|
#include "pc/sctp_data_channel_transport.h"
|
|
#include "pc/sctp_utils.h"
|
|
|
|
namespace webrtc {
|
|
|
|
SctpDataChannelTransport::SctpDataChannelTransport(
|
|
cricket::SctpTransportInternal* sctp_transport)
|
|
: sctp_transport_(sctp_transport) {
|
|
sctp_transport_->SignalReadyToSendData.connect(
|
|
this, &SctpDataChannelTransport::OnReadyToSendData);
|
|
sctp_transport_->SignalDataReceived.connect(
|
|
this, &SctpDataChannelTransport::OnDataReceived);
|
|
sctp_transport_->SignalClosingProcedureStartedRemotely.connect(
|
|
this, &SctpDataChannelTransport::OnClosingProcedureStartedRemotely);
|
|
sctp_transport_->SignalClosingProcedureComplete.connect(
|
|
this, &SctpDataChannelTransport::OnClosingProcedureComplete);
|
|
sctp_transport_->SignalClosedAbruptly.connect(
|
|
this, &SctpDataChannelTransport::OnClosedAbruptly);
|
|
}
|
|
|
|
RTCError SctpDataChannelTransport::OpenChannel(int channel_id) {
|
|
sctp_transport_->OpenStream(channel_id);
|
|
return RTCError::OK();
|
|
}
|
|
|
|
RTCError SctpDataChannelTransport::SendData(
|
|
int channel_id,
|
|
const SendDataParams& params,
|
|
const rtc::CopyOnWriteBuffer& buffer) {
|
|
// Map webrtc::SendDataParams to cricket::SendDataParams.
|
|
// TODO(mellem): See about unifying these structs.
|
|
cricket::SendDataParams sd_params;
|
|
sd_params.sid = channel_id;
|
|
sd_params.type = ToCricketDataMessageType(params.type);
|
|
sd_params.ordered = params.ordered;
|
|
sd_params.reliable = !(params.max_rtx_count || params.max_rtx_ms);
|
|
sd_params.max_rtx_count = params.max_rtx_count.value_or(-1);
|
|
sd_params.max_rtx_ms = params.max_rtx_ms.value_or(-1);
|
|
|
|
cricket::SendDataResult result;
|
|
sctp_transport_->SendData(sd_params, buffer, &result);
|
|
|
|
// TODO(mellem): See about changing the interfaces to not require mapping
|
|
// SendDataResult to RTCError and back again.
|
|
switch (result) {
|
|
case cricket::SendDataResult::SDR_SUCCESS:
|
|
return RTCError::OK();
|
|
case cricket::SendDataResult::SDR_BLOCK: {
|
|
// Send buffer is full.
|
|
ready_to_send_ = false;
|
|
return RTCError(RTCErrorType::RESOURCE_EXHAUSTED);
|
|
}
|
|
case cricket::SendDataResult::SDR_ERROR:
|
|
return RTCError(RTCErrorType::NETWORK_ERROR);
|
|
}
|
|
return RTCError(RTCErrorType::NETWORK_ERROR);
|
|
}
|
|
|
|
RTCError SctpDataChannelTransport::CloseChannel(int channel_id) {
|
|
sctp_transport_->ResetStream(channel_id);
|
|
return RTCError::OK();
|
|
}
|
|
|
|
void SctpDataChannelTransport::SetDataSink(DataChannelSink* sink) {
|
|
sink_ = sink;
|
|
if (sink_ && ready_to_send_) {
|
|
sink_->OnReadyToSend();
|
|
}
|
|
}
|
|
|
|
bool SctpDataChannelTransport::IsReadyToSend() const {
|
|
return ready_to_send_;
|
|
}
|
|
|
|
void SctpDataChannelTransport::OnReadyToSendData() {
|
|
ready_to_send_ = true;
|
|
if (sink_) {
|
|
sink_->OnReadyToSend();
|
|
}
|
|
}
|
|
|
|
void SctpDataChannelTransport::OnDataReceived(
|
|
const cricket::ReceiveDataParams& params,
|
|
const rtc::CopyOnWriteBuffer& buffer) {
|
|
if (sink_) {
|
|
sink_->OnDataReceived(params.sid, ToWebrtcDataMessageType(params.type),
|
|
buffer);
|
|
}
|
|
}
|
|
|
|
void SctpDataChannelTransport::OnClosingProcedureStartedRemotely(
|
|
int channel_id) {
|
|
if (sink_) {
|
|
sink_->OnChannelClosing(channel_id);
|
|
}
|
|
}
|
|
|
|
void SctpDataChannelTransport::OnClosingProcedureComplete(int channel_id) {
|
|
if (sink_) {
|
|
sink_->OnChannelClosed(channel_id);
|
|
}
|
|
}
|
|
|
|
void SctpDataChannelTransport::OnClosedAbruptly() {
|
|
if (sink_) {
|
|
sink_->OnTransportClosed();
|
|
}
|
|
}
|
|
|
|
} // namespace webrtc
|