@interface VCStatisticsCollectorQueue : NSObject {
    struct OpaqueFigThread { } *_thread;
    BOOL _shouldBlockWhenFull;
    struct tagVCStatisticsMessage { int type; int priority; double arrivalTime; BOOL isVCRCInternal; BOOL shouldFlushAndProcess; BOOL shouldDrainAndProcess; BOOL statisticsUpdateOnly; union { struct { unsigned int queueDepth1; unsigned int queueDepth2; unsigned int txBitrate; unsigned int averageBitrate; unsigned int averageBitrateShort; unsigned int averageBitrateLong; double averageQueueDepth; double expectedQueuingDelay; double bdcd; double normalizedBDCD; double normalizedDelay; char bbString[64]; int radioTechnology; } baseband; struct { unsigned int sendTimestamp; unsigned int queuingDelay; unsigned int remoteBWEstimation; unsigned int remoteBWEStability; unsigned int maxVideoBurstyLoss; unsigned int audioConsecutiveLoss; unsigned int mostBurstyLoss; unsigned int audioReceivedPackets; unsigned int videoReceivedPackets; unsigned int totalSentPackets; unsigned int echoedSendTimestamp; unsigned int mediaTimestamp; double owrd; double packetLossRate; unsigned int actualBitrate; unsigned int instantBitrate; double roundTripTime; unsigned int receiveQueueTarget; BOOL isPacketReceivedValid; struct { int packetType; unsigned int packetId; unsigned int sampleRate; unsigned int totalPacketsReceived; double receiveTimestamp; double owrd; double targetJitterQueueSize; unsigned int bandwidthEstimation; unsigned int localBurstyLoss; } packetReceived; struct { unsigned short sequenceNumber; BOOL isDuplicatePacket; BOOL isReceivedOnPrimary; unsigned int connectionStatsBuffer; } connectionStats; struct tagVCStatisticsECNStats { unsigned short ecnECT1Count; unsigned short ecnCECount; } ecnStats; struct tagVCStatisticsECNStats { unsigned short ecnECT1Count; unsigned short ecnCECount; } ecnRecvd; BOOL isECNEnabled; } feedback; struct { double packetLossPercentage; double packetLossPercentageAudio; double packetLossPercentageVideo; unsigned int burstPacketLoss; unsigned int roundTripTimeMilliseconds; unsigned int isNetworkCongested; unsigned int owrd; unsigned int targetBitrate; unsigned long long statisticsID; unsigned int videoPacketsReceived; } network; struct { unsigned int estimatorID; BOOL deregisterEstimator; BOOL isProbingSequence; BOOL isEndOfProbingSequence; unsigned int probingSequenceID; unsigned int messageLength; double arrivalTime; unsigned int mediaTimestamp; BOOL isPacketReceivedValid; struct { int packetType; unsigned int packetId; unsigned int sampleRate; unsigned int totalPacketsReceived; double receiveTimestamp; double owrd; double targetJitterQueueSize; unsigned int bandwidthEstimation; unsigned int localBurstyLoss; } packetReceived; } probing; struct { unsigned char linkID; unsigned int sendTimestamp; unsigned int receiveTimestamp; unsigned int totalPacketSent; unsigned int totalPacketReceived; unsigned int totalByteSent; unsigned int totalByteReceived; unsigned int serverStatsByteUsed; unsigned int bandwidthSample; unsigned int bandwidthEstimation; double roundTripTime; double owrd; double packetLossRate; double packetLossRateShortWindow; unsigned int actualBitrate; unsigned int instantBitrate; unsigned int serverStatsBitrate; unsigned int expectedBitrate; } serverStats; struct { unsigned int packetId; unsigned int totalPacketsSent; unsigned int totalBytesSent; double sendTimestamp; } packetSent; struct { int packetType; unsigned int packetId; unsigned int sampleRate; unsigned int totalPacketsReceived; double receiveTimestamp; double owrd; double targetJitterQueueSize; unsigned int bandwidthEstimation; unsigned int localBurstyLoss; } packetReceived; struct { unsigned int ssrc; unsigned int packetLossPercentage; unsigned int lastSequenceNumber; unsigned int roundTripTimeMilliseconds; } rtcpRR; struct { unsigned int mode; unsigned int remoteRadioAccessTechnology; unsigned int localRadioAccessTechnology; unsigned int maxBitrate; unsigned int minBitrate; unsigned int initialBitrate; BOOL isTrafficBursty; unsigned int featureFlags; } config; struct { unsigned int mediaEventType; unsigned int additionalFlushCount; unsigned int transactionID; unsigned int audioStallBitrate; float audioErasure; BOOL isKeyFrame; BOOL isTransitionToFEC; double videoStallTimeDelta; double videoStallTimeTotal; unsigned int refreshFrameTimestamp; unsigned int refreshFramePayloadType; unsigned int refreshFramePacketCount; unsigned long long idsParticipantID; } mediaEvent; struct { unsigned char version; unsigned char direction; unsigned char interfaceType; unsigned long long timestamp; unsigned long long maxThroughputBps; unsigned long long totalByteCount; unsigned int flushableQueueSize; unsigned int nonFlushableQueueSize; unsigned int averageDelayMillisecond; unsigned long long averageThroughputBps; int rateTrendSuggestion; unsigned int packetLossPerFrame; union { struct { unsigned char frequencyBand; unsigned char intermittentState; unsigned short estimatedIntermittentPeriod; unsigned short singleOutagePeriod; unsigned char btCoex; unsigned char radioCoex; unsigned char qualityScoreDelayRx; unsigned char qualityScoreDelayTx; unsigned char qualityScoreLossRx; unsigned char qualityScoreLossTx; unsigned char qualityScoreChannel; float offChannelTimeRatio; BOOL detectedFrequentOffChannelActivity; unsigned short wlanDutyCycle; unsigned int wifiObservedTxBitrate[6]; } wifi; struct { unsigned char radioAccessTechnology; short referenceSignalLevel; short signalLevel; char signalQuality; unsigned char uplinkBLER; unsigned char downlinkBLER; unsigned char bandwidthLimitationIndication; unsigned char cdrxState; unsigned short cdrxCycle; unsigned short estimatedOutagePeriod; unsigned char outageState; } baseband; } ; } nwConnection; struct tagVCStatisticsVideoLossFeedback { unsigned int frameRTPTimestamp; unsigned short packetsReceived; unsigned char frameSize; unsigned char packetsLost; } videoLossFeedback; } ; } _messageQueue[300];
    int _firstMessageIndex;
    int _nextMessageIndex;
    int _maxQueueSize;
    int _almostFullQueueSize;
    struct _opaque_pthread_mutex_t { long long __sig; char __opaque[56]; } _queueMutex;
    struct _opaque_pthread_cond_t { long long __sig; char __opaque[40]; } _queueNotFullCondition;
    struct _opaque_pthread_cond_t { long long __sig; char __opaque[40]; } _queueNotEmptyCondition;
    struct _opaque_pthread_mutex_t { long long __sig; char __opaque[56]; } _waitMutex;
    struct _opaque_pthread_cond_t { long long __sig; char __opaque[40]; } _waitCondition;
    BOOL _shouldProcessMessageOnExternalThread;
    BOOL _shouldProcessMessageImmediately;
    unsigned int _queueProcessWaitTimeMs;
    unsigned int _queueFullCounter;
}

@property (readonly) BOOL isThreadRunning;
@property (copy) id /* block */ messageHandler;

- (void)dealloc;
- (void)start;
- (void)stop;
- (id)initWithQueueSize:(int)a0 shouldBlockWhenFull:(BOOL)a1 queueWaitTimeMs:(unsigned int)a2 useExternalThread:(BOOL)a3;
- (void)stopThread;

@end