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Eliminate per-packet locking for processing

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This commit is contained in:
Brad Davis 2015-07-01 10:06:04 -07:00
parent 448a0f01b6
commit d4d6f8f5d5
1 changed files with 19 additions and 10 deletions
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29
libraries/networking/src/ReceivedPacketProcessor.cpp
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@ -38,19 +38,28 @@ bool ReceivedPacketProcessor::process() {
_hasPackets.wait(&_waitingOnPacketsMutex, getMaxWait());
_waitingOnPacketsMutex.unlock();
}
preProcess();
while (_packets.size() > 0) {
lock(); // lock to make sure nothing changes on us
NetworkPacket& packet = _packets.front(); // get the oldest packet
NetworkPacket temporary = packet; // make a copy of the packet in case the vector is resized on us
_packets.erase(_packets.begin()); // remove the oldest packet
if (!temporary.getNode().isNull()) {
_nodePacketCounts[temporary.getNode()->getUUID()]--;
}
unlock(); // let others add to the packets
processPacket(temporary.getNode(), temporary.getByteArray()); // process our temporary copy
QVector<NetworkPacket> currentPackets;
if (!_packets.size()) {
return isStillRunning();
}
lock();
std::swap(currentPackets, _packets);
unlock();
foreach(auto& packet, currentPackets) {
processPacket(packet.getNode(), packet.getByteArray());
midProcess();
}
lock();
foreach(auto& packet, currentPackets) {
_nodePacketCounts[packet.getNode()->getUUID()]--;
}
unlock();
postProcess();
return isStillRunning(); // keep running till they terminate us
}