DarkflameServer/dMasterServer/InstanceManager.cpp

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#include "InstanceManager.h"
#include <string>
#include "Game.h"
#include "dServer.h"
#include "dLogger.h"
#include "dConfig.h"
#include "CDClientDatabase.h"
#include "CDClientManager.h"
#include "CDZoneTableTable.h"
#include "dMessageIdentifiers.h"
#include "MasterPackets.h"
#include "PacketUtils.h"
#include "BinaryPathFinder.h"
InstanceManager::InstanceManager(dLogger* logger, const std::string& externalIP) {
mLogger = logger;
mExternalIP = externalIP;
m_LastPort = std::atoi(Game::config->GetValue("world_port_start").c_str());
m_LastInstanceID = LWOINSTANCEID_INVALID;
}
InstanceManager::~InstanceManager() {
for (Instance* i : m_Instances) {
delete i;
i = nullptr;
}
}
Instance* InstanceManager::GetInstance(LWOMAPID mapID, bool isFriendTransfer, LWOCLONEID cloneID) {
mLogger->Log("InstanceManager", "Searching for an instance for mapID %i/%i", mapID, cloneID);
Instance* instance = FindInstance(mapID, isFriendTransfer, cloneID);
if (instance) return instance;
// If we are shutting down, return a nullptr so a new instance is not created.
if (m_IsShuttingDown) {
Game::logger->Log("InstanceManager",
"Tried to create a new instance map/instance/clone %i/%i/%i, but Master is shutting down.",
mapID,
m_LastInstanceID + 1,
cloneID);
return nullptr;
}
//TODO: Update this so that the IP is read from a configuration file instead
int softCap = 8;
int maxPlayers = 12;
if (mapID == 0) {
softCap = 999;
maxPlayers = softCap;
} else {
softCap = GetSoftCap(mapID);
maxPlayers = GetHardCap(mapID);
}
uint32_t port = GetFreePort();
instance = new Instance(mExternalIP, port, mapID, ++m_LastInstanceID, cloneID, softCap, maxPlayers);
//Start the actual process:
#ifdef _WIN32
std::string cmd = "start " + (BinaryPathFinder::GetBinaryDir() / "WorldServer.exe").string() + " -zone ";
#else
std::string cmd;
if (std::atoi(Game::config->GetValue("use_sudo_world").c_str())) {
cmd = "sudo " + (BinaryPathFinder::GetBinaryDir() / "WorldServer").string() + " -zone ";
} else {
cmd = (BinaryPathFinder::GetBinaryDir() / "WorldServer").string() + " -zone ";
}
#endif
cmd.append(std::to_string(mapID));
cmd.append(" -port ");
cmd.append(std::to_string(port));
cmd.append(" -instance ");
cmd.append(std::to_string(m_LastInstanceID));
cmd.append(" -maxclients ");
cmd.append(std::to_string(maxPlayers));
cmd.append(" -clone ");
cmd.append(std::to_string(cloneID));
#ifndef _WIN32
cmd.append("&"); //Sends our next process to the background on Linux
#endif
auto ret = system(cmd.c_str());
m_Instances.push_back(instance);
if (instance) {
mLogger->Log("InstanceManager", "Created new instance: %i/%i/%i with min/max %i/%i", mapID, m_LastInstanceID, cloneID, softCap, maxPlayers);
return instance;
} else mLogger->Log("InstanceManager", "Failed to create a new instance!");
return nullptr;
}
bool InstanceManager::IsPortInUse(uint32_t port) {
for (Instance* i : m_Instances) {
if (i && i->GetPort() == port) {
return true;
}
}
return false;
}
uint32_t InstanceManager::GetFreePort() {
uint32_t port = m_LastPort;
std::vector<uint32_t> usedPorts;
for (Instance* i : m_Instances) {
usedPorts.push_back(i->GetPort());
}
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std::sort(usedPorts.begin(), usedPorts.end());
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int portIdx = 0;
while (portIdx < usedPorts.size() && port == usedPorts[portIdx]) {
//increment by 3 since each instance uses 3 ports (instance, world-server, world-chat)
port += 3;
portIdx++;
}
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return port;
}
void InstanceManager::AddPlayer(SystemAddress systemAddr, LWOMAPID mapID, LWOINSTANCEID instanceID) {
Instance* inst = FindInstance(mapID, instanceID);
if (inst) {
Player player;
player.addr = systemAddr;
player.id = 0; //TODO: Update this to include the LWOOBJID of the player's character.
inst->AddPlayer(player);
}
}
void InstanceManager::RemovePlayer(SystemAddress systemAddr, LWOMAPID mapID, LWOINSTANCEID instanceID) {
Instance* inst = FindInstance(mapID, instanceID);
if (inst) {
Player player;
player.addr = systemAddr;
player.id = 0; //TODO: Update this to include the LWOOBJID of the player's character.
inst->RemovePlayer(player);
}
}
std::vector<Instance*> InstanceManager::GetInstances() const {
return m_Instances;
}
void InstanceManager::AddInstance(Instance* instance) {
if (instance == nullptr) return;
m_Instances.push_back(instance);
}
void InstanceManager::RemoveInstance(Instance* instance) {
for (uint32_t i = 0; i < m_Instances.size(); ++i) {
if (m_Instances[i] == instance) {
instance->SetShutdownComplete(true);
if (!Game::shouldShutdown) RedirectPendingRequests(instance);
delete m_Instances[i];
m_Instances.erase(m_Instances.begin() + i);
break;
}
}
}
void InstanceManager::ReadyInstance(Instance* instance) {
instance->SetIsReady(true);
auto& pending = instance->GetPendingRequests();
for (const auto& request : pending) {
const auto& zoneId = instance->GetZoneID();
Game::logger->Log("InstanceManager", "Responding to pending request %llu -> %i (%i)", request, zoneId.GetMapID(), zoneId.GetCloneID());
MasterPackets::SendZoneTransferResponse(
Game::server,
request.sysAddr,
request.id,
request.mythranShift,
zoneId.GetMapID(),
zoneId.GetInstanceID(),
zoneId.GetCloneID(),
instance->GetIP(),
instance->GetPort()
);
}
pending.clear();
}
void InstanceManager::RequestAffirmation(Instance* instance, const PendingInstanceRequest& request) {
instance->GetPendingAffirmations().push_back(request);
CBITSTREAM;
PacketUtils::WriteHeader(bitStream, MASTER, MSG_MASTER_AFFIRM_TRANSFER_REQUEST);
bitStream.Write(request.id);
Game::server->Send(&bitStream, instance->GetSysAddr(), false);
Game::logger->Log("MasterServer", "Sent affirmation request %llu to %i/%i", request.id,
static_cast<int>(instance->GetZoneID().GetMapID()),
static_cast<int>(instance->GetZoneID().GetCloneID())
);
}
void InstanceManager::AffirmTransfer(Instance* instance, const uint64_t transferID) {
auto& pending = instance->GetPendingAffirmations();
for (auto i = 0u; i < pending.size(); ++i) {
const auto& request = pending[i];
if (request.id != transferID) continue;
const auto& zoneId = instance->GetZoneID();
MasterPackets::SendZoneTransferResponse(
Game::server,
request.sysAddr,
request.id,
request.mythranShift,
zoneId.GetMapID(),
zoneId.GetInstanceID(),
zoneId.GetCloneID(),
instance->GetIP(),
instance->GetPort()
);
pending.erase(pending.begin() + i);
break;
}
}
void InstanceManager::RedirectPendingRequests(Instance* instance) {
const auto& zoneId = instance->GetZoneID();
for (const auto& request : instance->GetPendingAffirmations()) {
auto* in = Game::im->GetInstance(zoneId.GetMapID(), false, zoneId.GetCloneID());
if (in && !in->GetIsReady()) // Instance not ready, make a pending request
{
in->GetPendingRequests().push_back(request);
continue;
}
Game::im->RequestAffirmation(in, request);
}
}
Instance* InstanceManager::GetInstanceBySysAddr(SystemAddress& sysAddr) {
for (uint32_t i = 0; i < m_Instances.size(); ++i) {
if (m_Instances[i] && m_Instances[i]->GetSysAddr() == sysAddr) {
return m_Instances[i];
}
}
return nullptr;
}
bool InstanceManager::IsInstanceFull(Instance* instance, bool isFriendTransfer) {
if (!isFriendTransfer && instance->GetSoftCap() > instance->GetCurrentClientCount())
return false;
else if (isFriendTransfer && instance->GetHardCap() > instance->GetCurrentClientCount())
return false;
return true;
}
Instance* InstanceManager::FindInstance(LWOMAPID mapID, bool isFriendTransfer, LWOCLONEID cloneId) {
for (Instance* i : m_Instances) {
if (i && i->GetMapID() == mapID && i->GetCloneID() == cloneId && !IsInstanceFull(i, isFriendTransfer) && !i->GetIsPrivate() && !i->GetShutdownComplete() && !i->GetIsShuttingDown()) {
return i;
}
}
return nullptr;
}
Instance* InstanceManager::FindInstance(LWOMAPID mapID, LWOINSTANCEID instanceID) {
for (Instance* i : m_Instances) {
if (i && i->GetMapID() == mapID && i->GetInstanceID() == instanceID && !i->GetIsPrivate() && !i->GetShutdownComplete() && !i->GetIsShuttingDown()) {
return i;
}
}
return nullptr;
}
Instance* InstanceManager::CreatePrivateInstance(LWOMAPID mapID, LWOCLONEID cloneID, const std::string& password) {
auto* instance = FindPrivateInstance(password);
if (instance != nullptr) {
return instance;
}
if (m_IsShuttingDown) {
Game::logger->Log("InstanceManager",
"Tried to create a new private instance map/instance/clone %i/%i/%i, but Master is shutting down.",
mapID,
m_LastInstanceID + 1,
cloneID);
return nullptr;
}
int maxPlayers = 999;
uint32_t port = GetFreePort();
instance = new Instance(mExternalIP, port, mapID, ++m_LastInstanceID, cloneID, maxPlayers, maxPlayers, true, password);
//Start the actual process:
std::string cmd = "start " + (BinaryPathFinder::GetBinaryDir() / "WorldServer").string() + " -zone ";
#ifndef _WIN32
cmd = (BinaryPathFinder::GetBinaryDir() / "WorldServer").string() + " -zone ";
#endif
cmd.append(std::to_string(mapID));
cmd.append(" -port ");
cmd.append(std::to_string(port));
cmd.append(" -instance ");
cmd.append(std::to_string(m_LastInstanceID));
cmd.append(" -maxclients ");
cmd.append(std::to_string(maxPlayers));
cmd.append(" -clone ");
cmd.append(std::to_string(cloneID));
#ifndef WIN32
cmd.append("&"); //Sends our next process to the background on Linux
#endif
auto ret = system(cmd.c_str());
m_Instances.push_back(instance);
if (instance) return instance;
else mLogger->Log("InstanceManager", "Failed to create a new instance!");
return instance;
}
Instance* InstanceManager::FindPrivateInstance(const std::string& password) {
for (auto* instance : m_Instances) {
if (!instance) continue;
if (!instance->GetIsPrivate()) {
continue;
}
mLogger->Log("InstanceManager", "Password: %s == %s => %d", password.c_str(), instance->GetPassword().c_str(), password == instance->GetPassword());
if (instance->GetPassword() == password) {
return instance;
}
}
return nullptr;
}
int InstanceManager::GetSoftCap(LWOMAPID mapID) {
CDZoneTableTable* zoneTable = CDClientManager::Instance().GetTable<CDZoneTableTable>();
if (zoneTable) {
const CDZoneTable* zone = zoneTable->Query(mapID);
if (zone != nullptr) {
return zone->population_soft_cap;
}
}
return 8;
}
int InstanceManager::GetHardCap(LWOMAPID mapID) {
CDZoneTableTable* zoneTable = CDClientManager::Instance().GetTable<CDZoneTableTable>();
if (zoneTable) {
const CDZoneTable* zone = zoneTable->Query(mapID);
if (zone != nullptr) {
return zone->population_hard_cap;
}
}
return 12;
}
void Instance::SetShutdownComplete(const bool value) {
m_Shutdown = value;
}
bool Instance::GetShutdownComplete() const {
return m_Shutdown;
}
void Instance::Shutdown() {
CBITSTREAM;
PacketUtils::WriteHeader(bitStream, MASTER, MSG_MASTER_SHUTDOWN);
Game::server->Send(&bitStream, this->m_SysAddr, false);
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Game::logger->Log("Instance", "Triggered world shutdown for zone/clone/instance %i/%i/%i", GetMapID(), GetCloneID(), GetInstanceID());
}