osb/source/game/StarWorldServerThread.cpp

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#include "StarWorldServerThread.hpp"
#include "StarTickRateMonitor.hpp"
#include "StarNpc.hpp"
#include "StarRoot.hpp"
#include "StarLogging.hpp"
#include "StarAssets.hpp"
#include "StarPlayer.hpp"
namespace Star {
WorldServerThread::WorldServerThread(WorldServerPtr server, WorldId worldId)
: Thread("WorldServerThread: " + printWorldId(worldId)),
m_worldServer(std::move(server)),
m_worldId(std::move(worldId)),
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m_stop(false),
m_errorOccurred(false),
m_shouldExpire(true) {
if (m_worldServer)
m_worldServer->setWorldId(printWorldId(m_worldId));
}
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WorldServerThread::~WorldServerThread() {
m_stop = true;
join();
RecursiveMutexLocker locker(m_mutex);
for (auto clientId : m_worldServer->clientIds())
removeClient(clientId);
}
WorldId WorldServerThread::worldId() const {
return m_worldId;
}
void WorldServerThread::start() {
m_stop = false;
m_errorOccurred = false;
Thread::start();
}
void WorldServerThread::stop() {
m_stop = true;
Thread::join();
}
void WorldServerThread::setPause(shared_ptr<const atomic<bool>> pause) {
m_pause = pause;
}
bool WorldServerThread::serverErrorOccurred() {
return m_errorOccurred;
}
bool WorldServerThread::shouldExpire() {
return m_shouldExpire;
}
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bool WorldServerThread::spawnTargetValid(SpawnTarget const& spawnTarget) {
try {
RecursiveMutexLocker locker(m_mutex);
return m_worldServer->spawnTargetValid(spawnTarget);
} catch (std::exception const& e) {
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Logger::error("WorldServerThread exception caught: {}", outputException(e, true));
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m_errorOccurred = true;
return false;
}
}
bool WorldServerThread::addClient(ConnectionId clientId, SpawnTarget const& spawnTarget, bool isLocal, bool isAdmin) {
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try {
RecursiveMutexLocker locker(m_mutex);
if (m_worldServer->addClient(clientId, spawnTarget, isLocal, isAdmin)) {
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m_clients.add(clientId);
return true;
}
return false;
} catch (std::exception const& e) {
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Logger::error("WorldServerThread exception caught: {}", outputException(e, true));
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m_errorOccurred = true;
return false;
}
}
List<PacketPtr> WorldServerThread::removeClient(ConnectionId clientId) {
RecursiveMutexLocker locker(m_mutex);
if (!m_clients.contains(clientId))
return {};
RecursiveMutexLocker queueLocker(m_queueMutex);
List<PacketPtr> outgoingPackets;
try {
auto incomingPackets = take(m_incomingPacketQueue[clientId]);
if (m_worldServer->hasClient(clientId))
m_worldServer->handleIncomingPackets(clientId, std::move(incomingPackets));
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outgoingPackets = take(m_outgoingPacketQueue[clientId]);
if (m_worldServer->hasClient(clientId))
outgoingPackets.appendAll(m_worldServer->removeClient(clientId));
} catch (std::exception const& e) {
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Logger::error("WorldServerThread exception caught: {}", outputException(e, true));
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m_errorOccurred = true;
}
m_clients.remove(clientId);
m_incomingPacketQueue.remove(clientId);
m_outgoingPacketQueue.remove(clientId);
return outgoingPackets;
}
List<ConnectionId> WorldServerThread::clients() const {
RecursiveMutexLocker locker(m_mutex);
return m_clients.values();
}
bool WorldServerThread::hasClient(ConnectionId clientId) const {
RecursiveMutexLocker locker(m_mutex);
return m_clients.contains(clientId);
}
bool WorldServerThread::noClients() const {
RecursiveMutexLocker locker(m_mutex);
return m_clients.empty();
}
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List<ConnectionId> WorldServerThread::erroredClients() const {
RecursiveMutexLocker locker(m_mutex);
auto unerroredClients = HashSet<ConnectionId>::from(m_worldServer->clientIds());
return m_clients.difference(unerroredClients).values();
}
void WorldServerThread::pushIncomingPackets(ConnectionId clientId, List<PacketPtr> packets) {
RecursiveMutexLocker queueLocker(m_queueMutex);
m_incomingPacketQueue[clientId].appendAll(std::move(packets));
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}
List<PacketPtr> WorldServerThread::pullOutgoingPackets(ConnectionId clientId) {
RecursiveMutexLocker queueLocker(m_queueMutex);
return take(m_outgoingPacketQueue[clientId]);
}
Maybe<Vec2F> WorldServerThread::playerRevivePosition(ConnectionId clientId) const {
try {
RecursiveMutexLocker locker(m_mutex);
if (auto player = m_worldServer->clientPlayer(clientId))
return player->position() + player->feetOffset();
return {};
} catch (std::exception const& e) {
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Logger::error("WorldServerThread exception caught: {}", outputException(e, true));
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m_errorOccurred = true;
return {};
}
}
Maybe<pair<String, String>> WorldServerThread::pullNewPlanetType() {
try {
RecursiveMutexLocker locker(m_mutex);
return m_worldServer->pullNewPlanetType();
} catch (std::exception const& e) {
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Logger::error("WorldServerThread exception caught: {}", outputException(e, true));
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m_errorOccurred = true;
return {};
}
}
void WorldServerThread::executeAction(WorldServerAction action) {
RecursiveMutexLocker locker(m_mutex);
action(this, m_worldServer.get());
}
void WorldServerThread::setUpdateAction(WorldServerAction updateAction) {
RecursiveMutexLocker locker(m_mutex);
m_updateAction = updateAction;
}
void WorldServerThread::passMessages(List<Message>&& messages) {
RecursiveMutexLocker locker(m_messageMutex);
m_messages.appendAll(std::move(messages));
}
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WorldChunks WorldServerThread::readChunks() {
try {
RecursiveMutexLocker locker(m_mutex);
return m_worldServer->readChunks();
} catch (std::exception const& e) {
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Logger::error("WorldServerThread exception caught: {}", outputException(e, true));
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m_errorOccurred = true;
return {};
}
}
void WorldServerThread::run() {
try {
auto& root = Root::singleton();
double updateMeasureWindow = root.assets()->json("/universe_server.config:updateMeasureWindow").toDouble();
double fidelityDecrementScore = root.assets()->json("/universe_server.config:fidelityDecrementScore").toDouble();
double fidelityIncrementScore = root.assets()->json("/universe_server.config:fidelityIncrementScore").toDouble();
String serverFidelityMode = root.configuration()->get("serverFidelity").toString();
Maybe<WorldServerFidelity> lockedFidelity;
if (!serverFidelityMode.equalsIgnoreCase("automatic"))
lockedFidelity = WorldServerFidelityNames.getLeft(serverFidelityMode);
double storageInterval = root.assets()->json("/universe_server.config:worldStorageInterval").toDouble() / 1000.0;
Timer storageTimer = Timer::withTime(storageInterval);
TickRateApproacher tickApproacher(1.0f / ServerGlobalTimestep, updateMeasureWindow);
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double fidelityScore = 0.0;
WorldServerFidelity automaticFidelity = WorldServerFidelity::Medium;
while (!m_stop && !m_errorOccurred) {
auto fidelity = lockedFidelity.value(automaticFidelity);
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LogMap::set(strf("server_{}_fidelity", m_worldId), WorldServerFidelityNames.getRight(fidelity));
LogMap::set(strf("server_{}_update", m_worldId), strf("{:4.2f}Hz", tickApproacher.rate()));
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update(fidelity);
tickApproacher.setTargetTickRate(1.0f / ServerGlobalTimestep);
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tickApproacher.tick();
if (storageTimer.timeUp()) {
sync();
storageTimer.restart(storageInterval);
}
double spareTime = tickApproacher.spareTime();
fidelityScore += spareTime;
if (fidelityScore <= fidelityDecrementScore) {
if (automaticFidelity > WorldServerFidelity::Minimum)
automaticFidelity = (WorldServerFidelity)((int)automaticFidelity - 1);
fidelityScore = 0.0;
}
if (fidelityScore >= fidelityIncrementScore) {
if (automaticFidelity < WorldServerFidelity::High)
automaticFidelity = (WorldServerFidelity)((int)automaticFidelity + 1);
fidelityScore = 0.0;
}
int64_t spareMilliseconds = floor(spareTime * 1000);
if (spareMilliseconds > 0)
Thread::sleepPrecise(spareMilliseconds);
}
} catch (std::exception const& e) {
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Logger::error("WorldServerThread exception caught: {}", outputException(e, true));
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m_errorOccurred = true;
}
}
void WorldServerThread::update(WorldServerFidelity fidelity) {
RecursiveMutexLocker locker(m_mutex);
auto unerroredClientIds = m_worldServer->clientIds();
for (auto clientId : unerroredClientIds) {
RecursiveMutexLocker queueLocker(m_queueMutex);
auto incomingPackets = take(m_incomingPacketQueue[clientId]);
queueLocker.unlock();
try {
m_worldServer->handleIncomingPackets(clientId, std::move(incomingPackets));
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} catch (std::exception const& e) {
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Logger::error("WorldServerThread exception caught handling incoming packets for client {}: {}",
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clientId, outputException(e, true));
RecursiveMutexLocker queueLocker(m_queueMutex);
m_outgoingPacketQueue[clientId].appendAll(m_worldServer->removeClient(clientId));
unerroredClientIds.remove(clientId);
}
}
float dt = ServerGlobalTimestep * GlobalTimescale;
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m_worldServer->setFidelity(fidelity);
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if (dt > 0.0f && (!m_pause || *m_pause == false))
m_worldServer->update(dt);
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List<Message> messages;
{
RecursiveMutexLocker locker(m_messageMutex);
messages = std::move(m_messages);
}
for (auto& message : messages) {
if (auto resp = m_worldServer->receiveMessage(ServerConnectionId, message.message, message.args))
message.promise.fulfill(*resp);
else
message.promise.fail("Message not handled by world");
}
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for (auto& clientId : unerroredClientIds) {
auto outgoingPackets = m_worldServer->getOutgoingPackets(clientId);
RecursiveMutexLocker queueLocker(m_queueMutex);
m_outgoingPacketQueue[clientId].appendAll(std::move(outgoingPackets));
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}
m_shouldExpire = m_worldServer->shouldExpire();
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if (m_updateAction)
m_updateAction(this, m_worldServer.get());
}
void WorldServerThread::sync() {
RecursiveMutexLocker locker(m_mutex);
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Logger::debug("WorldServer: periodic sync to disk of world {}", m_worldId);
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m_worldServer->sync();
}
}