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Fix assignment client crash

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This commit is contained in:
David Rowe 2021-11-20 17:26:06 +13:00
parent cf57b506b5
commit 56d33b555e
1 changed files with 11 additions and 9 deletions
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20
libraries/networking/src/webrtc/WebRTCDataChannels.cpp
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@ -355,13 +355,11 @@ void WDCConnection::onDataChannelStateChanged() {
<< DataChannelInterface::DataStateString(state);
#endif
if (state == DataChannelInterface::kClosed) {
// Close data channel.
// Finish with the data channel.
_dataChannel->UnregisterObserver();
// Don't set _dataChannel = nullptr because it is a scoped_refptr.
_dataChannelObserver = nullptr;
_dataChannel = nullptr;
#ifdef WEBRTC_DEBUG
qCDebug(networking_webrtc) << "Disposed of data channel";
#endif
// Close peer connection.
_parent->closePeerConnection(this);
}
@ -396,17 +394,21 @@ qint64 WDCConnection::getBufferedAmount() const {
#ifdef WEBRTC_DEBUG
qCDebug(networking_webrtc) << "WDCConnection::getBufferedAmount()";
#endif
return _dataChannel ? _dataChannel->buffered_amount() : 0;
return _dataChannel && _dataChannel->state() != DataChannelInterface::kClosing
&& _dataChannel->state() != DataChannelInterface::kClosed
? _dataChannel->buffered_amount() : 0;
}
bool WDCConnection::sendDataMessage(const DataBuffer& buffer) {
#ifdef WEBRTC_DEBUG
qCDebug(networking_webrtc) << "WDCConnection::sendDataMessage()";
if (!_dataChannel) {
if (!_dataChannel || _dataChannel->state() == DataChannelInterface::kClosing
|| _dataChannel->state() == DataChannelInterface::kClosed) {
qCDebug(networking_webrtc) << "No data channel to send on";
}
#endif
if (!_dataChannel) {
if (!_dataChannel || _dataChannel->state() == DataChannelInterface::kClosing
|| _dataChannel->state() == DataChannelInterface::kClosed) {
// Data channel may have been closed while message to send was being prepared.
return false;
} else if (_dataChannel->buffered_amount() + buffer.size() > MAX_WEBRTC_BUFFER_SIZE) {
@ -422,7 +424,7 @@ void WDCConnection::closePeerConnection() {
qCDebug(networking_webrtc) << "WDCConnection::closePeerConnection() :" << (int)_peerConnection->peer_connection_state();
#endif
_peerConnection->Close();
_peerConnection = nullptr;
// Don't set _peerConnection = nullptr because it is a scoped_refptr.
_peerConnectionObserver = nullptr;
#ifdef WEBRTC_DEBUG
qCDebug(networking_webrtc) << "Disposed of peer connection";