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Unified Diff: webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc

Issue 1401463003: Avoid data race in RtcpReceiver. (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Formatting Created 5 years, 2 months ago
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Index: webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc b/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
index fb1f9b2503768b1110cb49944f041462483998b4..abd822a4b9758edf9e559b64c22dc523e68c96af 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_receiver.cc
@@ -387,7 +387,6 @@ RTCPReceiver::IncomingRTCPPacket(RTCPPacketInformation& rtcpPacketInformation,
return 0;
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void
RTCPReceiver::HandleSenderReceiverReport(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation)
@@ -463,7 +462,6 @@ RTCPReceiver::HandleSenderReceiverReport(RTCPUtility::RTCPParserV2& rtcpParser,
}
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleReportBlock(
const RTCPUtility::RTCPPacket& rtcpPacket,
RTCPPacketInformation& rtcpPacketInformation,
@@ -775,7 +773,6 @@ int32_t RTCPReceiver::BoundingSet(bool &tmmbrOwner, TMMBRSet* boundingSetRec) {
return receiveInfo->TmmbnBoundingSet.lengthOfSet();
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleSDES(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation) {
RTCPUtility::RTCPPacketTypes pktType = rtcpParser.Iterate();
@@ -786,7 +783,6 @@ void RTCPReceiver::HandleSDES(RTCPUtility::RTCPParserV2& rtcpParser,
rtcpPacketInformation.rtcpPacketTypeFlags |= kRtcpSdes;
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleSDESChunk(RTCPUtility::RTCPParserV2& rtcpParser) {
const RTCPUtility::RTCPPacket& rtcpPacket = rtcpParser.Packet();
RTCPCnameInformation* cnameInfo =
@@ -804,7 +800,6 @@ void RTCPReceiver::HandleSDESChunk(RTCPUtility::RTCPParserV2& rtcpParser) {
}
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleNACK(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation) {
const RTCPUtility::RTCPPacket& rtcpPacket = rtcpParser.Packet();
@@ -828,7 +823,6 @@ void RTCPReceiver::HandleNACK(RTCPUtility::RTCPParserV2& rtcpParser,
}
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void
RTCPReceiver::HandleNACKItem(const RTCPUtility::RTCPPacket& rtcpPacket,
RTCPPacketInformation& rtcpPacketInformation) {
@@ -848,12 +842,10 @@ RTCPReceiver::HandleNACKItem(const RTCPUtility::RTCPPacket& rtcpPacket,
rtcpPacketInformation.rtcpPacketTypeFlags |= kRtcpNack;
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleBYE(RTCPUtility::RTCPParserV2& rtcpParser) {
const RTCPUtility::RTCPPacket& rtcpPacket = rtcpParser.Packet();
// clear our lists
- CriticalSectionScoped lock(_criticalSectionRTCPReceiver);
ReportBlockMap::iterator it = _receivedReportBlockMap.begin();
for (; it != _receivedReportBlockMap.end(); ++it) {
ReportBlockInfoMap* info_map = &(it->second);
@@ -964,15 +956,12 @@ void RTCPReceiver::HandleXrDlrrReportBlockItem(
rtcpPacketInformation.rtcpPacketTypeFlags |= kRtcpXrDlrrReportBlock;
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void
RTCPReceiver::HandleXRVOIPMetric(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation)
{
const RTCPUtility::RTCPPacket& rtcpPacket = rtcpParser.Packet();
- CriticalSectionScoped lock(_criticalSectionRTCPReceiver);
-
if(rtcpPacket.XRVOIPMetricItem.SSRC == main_ssrc_)
{
// Store VoIP metrics block if it's about me
@@ -1008,7 +997,6 @@ RTCPReceiver::HandleXRVOIPMetric(RTCPUtility::RTCPParserV2& rtcpParser,
rtcpParser.Iterate();
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandlePLI(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation) {
const RTCPUtility::RTCPPacket& rtcpPacket = rtcpParser.Packet();
@@ -1022,7 +1010,6 @@ void RTCPReceiver::HandlePLI(RTCPUtility::RTCPParserV2& rtcpParser,
rtcpParser.Iterate();
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleTMMBR(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation) {
const RTCPUtility::RTCPPacket& rtcpPacket = rtcpParser.Packet();
@@ -1059,7 +1046,6 @@ void RTCPReceiver::HandleTMMBR(RTCPUtility::RTCPParserV2& rtcpParser,
}
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleTMMBRItem(RTCPReceiveInformation& receiveInfo,
const RTCPUtility::RTCPPacket& rtcpPacket,
RTCPPacketInformation& rtcpPacketInformation,
@@ -1072,7 +1058,6 @@ void RTCPReceiver::HandleTMMBRItem(RTCPReceiveInformation& receiveInfo,
}
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleTMMBN(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation) {
const RTCPUtility::RTCPPacket& rtcpPacket = rtcpParser.Packet();
@@ -1104,14 +1089,12 @@ void RTCPReceiver::HandleTMMBN(RTCPUtility::RTCPParserV2& rtcpParser,
}
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleSR_REQ(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation) {
rtcpPacketInformation.rtcpPacketTypeFlags |= kRtcpSrReq;
rtcpParser.Iterate();
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleTMMBNItem(RTCPReceiveInformation& receiveInfo,
const RTCPUtility::RTCPPacket& rtcpPacket) {
receiveInfo.TmmbnBoundingSet.AddEntry(
@@ -1120,7 +1103,6 @@ void RTCPReceiver::HandleTMMBNItem(RTCPReceiveInformation& receiveInfo,
rtcpPacket.TMMBNItem.SSRC);
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleSLI(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation) {
const RTCPUtility::RTCPPacket& rtcpPacket = rtcpParser.Packet();
@@ -1131,7 +1113,6 @@ void RTCPReceiver::HandleSLI(RTCPUtility::RTCPParserV2& rtcpParser,
}
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleSLIItem(const RTCPUtility::RTCPPacket& rtcpPacket,
RTCPPacketInformation& rtcpPacketInformation) {
// in theory there could be multiple slices lost
@@ -1167,7 +1148,6 @@ RTCPReceiver::HandleRPSI(RTCPUtility::RTCPParserV2& rtcpParser,
}
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandlePsfbApp(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation) {
RTCPUtility::RTCPPacketTypes pktType = rtcpParser.Iterate();
@@ -1180,7 +1160,6 @@ void RTCPReceiver::HandlePsfbApp(RTCPUtility::RTCPParserV2& rtcpParser,
}
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleIJ(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation) {
const RTCPUtility::RTCPPacket& rtcpPacket = rtcpParser.Packet();
@@ -1208,7 +1187,6 @@ void RTCPReceiver::HandleREMBItem(
rtcpPacket.REMBItem.BitRate;
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleFIR(RTCPUtility::RTCPParserV2& rtcpParser,
RTCPPacketInformation& rtcpPacketInformation) {
const RTCPUtility::RTCPPacket& rtcpPacket = rtcpParser.Packet();
@@ -1222,7 +1200,6 @@ void RTCPReceiver::HandleFIR(RTCPUtility::RTCPParserV2& rtcpParser,
}
}
-// no need for critsect we have _criticalSectionRTCPReceiver
void RTCPReceiver::HandleFIRItem(RTCPReceiveInformation* receiveInfo,
const RTCPUtility::RTCPPacket& rtcpPacket,
RTCPPacketInformation& rtcpPacketInformation) {
@@ -1348,11 +1325,13 @@ void RTCPReceiver::TriggerCallbacksFromRTCPPacket(
// Might trigger a OnReceivedBandwidthEstimateUpdate.
UpdateTMMBR();
}
- unsigned int local_ssrc;
+ uint32_t local_ssrc;
+ std::set<uint32_t> registered_ssrcs;
{
// We don't want to hold this critsect when triggering the callbacks below.
CriticalSectionScoped lock(_criticalSectionRTCPReceiver);
local_ssrc = main_ssrc_;
+ registered_ssrcs = registered_ssrcs_;
}
if (!receiver_only_ &&
(rtcpPacketInformation.rtcpPacketTypeFlags & kRtcpSrReq)) {
@@ -1414,9 +1393,8 @@ void RTCPReceiver::TriggerCallbacksFromRTCPPacket(
(rtcpPacketInformation.rtcpPacketTypeFlags & kRtcpTransportFeedback)) {
uint32_t media_source_ssrc =
rtcpPacketInformation.transport_feedback_->GetMediaSourceSsrc();
- if (media_source_ssrc == main_ssrc_ ||
- registered_ssrcs_.find(media_source_ssrc) !=
- registered_ssrcs_.end()) {
+ if (media_source_ssrc == local_ssrc ||
+ registered_ssrcs.find(media_source_ssrc) != registered_ssrcs.end()) {
_cbTransportFeedbackObserver->OnTransportFeedback(
*rtcpPacketInformation.transport_feedback_.get());
}
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