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Send all environment data in the same packet and only send it about once a

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second.
This commit is contained in:
Andrzej Kapolka 2013-05-22 17:09:35 -07:00
parent b6e78064d8
commit 629c7b0146
5 changed files with 41 additions and 22 deletions
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20
interface/src/Environment.cpp
View file

@ -114,19 +114,29 @@ bool Environment::findCapsulePenetration(const glm::vec3& start, const glm::vec3
}
int Environment::parseData(sockaddr *senderAddress, unsigned char* sourceBuffer, int numBytes) {
EnvironmentData newData;
int bytesRead = newData.parseData(sourceBuffer, numBytes);
// push past the packet header
unsigned char* start = sourceBuffer;
sourceBuffer++;
numBytes--;
// get the lock for the duration of the call
QMutexLocker locker(&_mutex);
// update the mapping by address/ID
_data[*senderAddress][newData.getID()] = newData;
EnvironmentData newData;
while (numBytes > 0) {
int dataLength = newData.parseData(sourceBuffer, numBytes);
// update the mapping by address/ID
_data[*senderAddress][newData.getID()] = newData;
sourceBuffer += dataLength;
numBytes -= dataLength;
}
// remove the default mapping, if any
_data.remove(getZeroAddress());
return bytesRead;
return sourceBuffer - start;
}
ProgramObject* Environment::createSkyProgram(const char* from, int* locations) {

5
libraries/shared/src/SharedUtil.cpp
View file

@ -52,6 +52,10 @@ bool randomBoolean() {
return rand() % 2;
}
bool shouldDo(float desiredInterval, float deltaTime) {
return randFloat() < deltaTime / desiredInterval;
}
void outputBufferBits(unsigned char* buffer, int length, bool withNewLine) {
for (int i = 0; i < length; i++) {
outputBits(buffer[i], false);
@ -417,4 +421,3 @@ int insertIntoSortedArrays(void* value, float key, int originalIndex,
}
return -1; // error case
}

2
libraries/shared/src/SharedUtil.h
View file

@ -44,6 +44,8 @@ float randFloatInRange (float min,float max);
unsigned char randomColorValue(int minimum);
bool randomBoolean();
bool shouldDo(float desiredInterval, float deltaTime);
void outputBufferBits(unsigned char* buffer, int length, bool withNewLine = true);
void outputBits(unsigned char byte, bool withNewLine = true);
void printVoxelCode(unsigned char* voxelCode);

5
libraries/voxels/src/EnvironmentData.cpp
View file

@ -28,8 +28,6 @@ EnvironmentData::EnvironmentData(int id) :
int EnvironmentData::getBroadcastData(unsigned char* destinationBuffer) const {
unsigned char* bufferStart = destinationBuffer;
*destinationBuffer++ = PACKET_HEADER_ENVIRONMENT_DATA;
memcpy(destinationBuffer, &_id, sizeof(_id));
destinationBuffer += sizeof(_id);
@ -64,9 +62,6 @@ int EnvironmentData::getBroadcastData(unsigned char* destinationBuffer) const {
}
int EnvironmentData::parseData(unsigned char* sourceBuffer, int numBytes) {
// increment to push past the packet header
sourceBuffer++;
unsigned char* startPosition = sourceBuffer;
memcpy(&_id, sourceBuffer, sizeof(_id));

31
voxel-server/src/main.cpp
View file

@ -49,6 +49,8 @@ int PACKETS_PER_CLIENT_PER_INTERVAL = 50;
const int MAX_VOXEL_TREE_DEPTH_LEVELS = 4;
const int ENVIRONMENT_SEND_INTERVAL_USECS = 1000000;
VoxelTree randomTree(true); // this is a reaveraging tree
bool wantVoxelPersist = true;
bool wantLocalDomain = false;
@ -161,8 +163,8 @@ void resInVoxelDistributor(AgentList* agentList,
int trueBytesSent = 0;
double start = usecTimestampNow();
int environmentPacketCount = sizeof(environmentData) / sizeof(environmentData[0]);
while (packetsSentThisInterval < PACKETS_PER_CLIENT_PER_INTERVAL - environmentPacketCount) {
bool shouldSendEnvironments = shouldDo(ENVIRONMENT_SEND_INTERVAL_USECS, VOXEL_SEND_INTERVAL_USECS);
while (packetsSentThisInterval < PACKETS_PER_CLIENT_PER_INTERVAL - (shouldSendEnvironments ? 1 : 0)) {
if (!agentData->nodeBag.isEmpty()) {
VoxelNode* subTree = agentData->nodeBag.extract();
bytesWritten = randomTree.encodeTreeBitstream(agentData->getMaxSearchLevel(), subTree,
@ -194,13 +196,16 @@ void resInVoxelDistributor(AgentList* agentList,
}
}
// send the environment packets
for (int i = 0; i < environmentPacketCount; i++) {
int envPacketLength = environmentData[i].getBroadcastData(tempOutputBuffer);
if (shouldSendEnvironments) {
int envPacketLength = 1;
*tempOutputBuffer = PACKET_HEADER_ENVIRONMENT_DATA;
for (int i = 0; i < sizeof(environmentData) / sizeof(environmentData[0]); i++) {
envPacketLength += environmentData[i].getBroadcastData(tempOutputBuffer + envPacketLength);
}
agentList->getAgentSocket()->send(agent->getActiveSocket(), tempOutputBuffer, envPacketLength);
trueBytesSent += envPacketLength;
truePacketsSent++;
truePacketsSent++;
}
double end = usecTimestampNow();
double elapsedmsec = (end - start)/1000.0;
if (elapsedmsec > 100) {
@ -301,8 +306,8 @@ void deepestLevelVoxelDistributor(AgentList* agentList,
int trueBytesSent = 0;
double start = usecTimestampNow();
int environmentPacketCount = sizeof(environmentData) / sizeof(environmentData[0]);
while (packetsSentThisInterval < PACKETS_PER_CLIENT_PER_INTERVAL - environmentPacketCount) {
bool shouldSendEnvironments = shouldDo(ENVIRONMENT_SEND_INTERVAL_USECS, VOXEL_SEND_INTERVAL_USECS);
while (packetsSentThisInterval < PACKETS_PER_CLIENT_PER_INTERVAL - (shouldSendEnvironments ? 1 : 0)) {
if (!agentData->nodeBag.isEmpty()) {
VoxelNode* subTree = agentData->nodeBag.extract();
bytesWritten = randomTree.encodeTreeBitstream(INT_MAX, subTree,
@ -334,9 +339,13 @@ void deepestLevelVoxelDistributor(AgentList* agentList,
packetsSentThisInterval = PACKETS_PER_CLIENT_PER_INTERVAL; // done for now, no nodes left
}
}
// send the environment packets
for (int i = 0; i < environmentPacketCount; i++) {
int envPacketLength = environmentData[i].getBroadcastData(tempOutputBuffer);
// send the environment packet
if (shouldSendEnvironments) {
int envPacketLength = 1;
*tempOutputBuffer = PACKET_HEADER_ENVIRONMENT_DATA;
for (int i = 0; i < sizeof(environmentData) / sizeof(environmentData[0]); i++) {
envPacketLength += environmentData[i].getBroadcastData(tempOutputBuffer + envPacketLength);
}
agentList->getAgentSocket()->send(agent->getActiveSocket(), tempOutputBuffer, envPacketLength);
trueBytesSent += envPacketLength;
truePacketsSent++;