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server.cpp
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server.cpp
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/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <[email protected]>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "server.h"
#include <iostream>
#include <queue>
#include <algorithm>
#include "network/networkprotocol.h"
#include "network/serveropcodes.h"
#include "ban.h"
#include "environment.h"
#include "map.h"
#include "threading/mutex_auto_lock.h"
#include "constants.h"
#include "voxel.h"
#include "config.h"
#include "version.h"
#include "filesys.h"
#include "mapblock.h"
#include "serverobject.h"
#include "genericobject.h"
#include "settings.h"
#include "profiler.h"
#include "log.h"
#include "scripting_game.h"
#include "nodedef.h"
#include "itemdef.h"
#include "craftdef.h"
#include "emerge.h"
#include "mapgen.h"
#include "mg_biome.h"
#include "content_mapnode.h"
#include "content_nodemeta.h"
#include "content_abm.h"
#include "content_sao.h"
#include "mods.h"
#include "event_manager.h"
#include "serverlist.h"
#include "util/string.h"
#include "rollback.h"
#include "util/serialize.h"
#include "util/thread.h"
#include "defaultsettings.h"
#include "util/base64.h"
#include "util/sha1.h"
#include "util/hex.h"
class ClientNotFoundException : public BaseException
{
public:
ClientNotFoundException(const char *s):
BaseException(s)
{}
};
class ServerThread : public Thread
{
public:
ServerThread(Server *server):
Thread("Server"),
m_server(server)
{}
void *run();
private:
Server *m_server;
};
void *ServerThread::run()
{
DSTACK(FUNCTION_NAME);
BEGIN_DEBUG_EXCEPTION_HANDLER
m_server->AsyncRunStep(true);
while (!stopRequested()) {
try {
//TimeTaker timer("AsyncRunStep() + Receive()");
m_server->AsyncRunStep();
m_server->Receive();
} catch (con::NoIncomingDataException &e) {
} catch (con::PeerNotFoundException &e) {
infostream<<"Server: PeerNotFoundException"<<std::endl;
} catch (ClientNotFoundException &e) {
} catch (con::ConnectionBindFailed &e) {
m_server->setAsyncFatalError(e.what());
} catch (LuaError &e) {
m_server->setAsyncFatalError(
"ServerThread::run Lua: " + std::string(e.what()));
}
}
END_DEBUG_EXCEPTION_HANDLER
return NULL;
}
v3f ServerSoundParams::getPos(ServerEnvironment *env, bool *pos_exists) const
{
if(pos_exists) *pos_exists = false;
switch(type){
case SSP_LOCAL:
return v3f(0,0,0);
case SSP_POSITIONAL:
if(pos_exists) *pos_exists = true;
return pos;
case SSP_OBJECT: {
if(object == 0)
return v3f(0,0,0);
ServerActiveObject *sao = env->getActiveObject(object);
if(!sao)
return v3f(0,0,0);
if(pos_exists) *pos_exists = true;
return sao->getBasePosition(); }
}
return v3f(0,0,0);
}
/*
Server
*/
Server::Server(
const std::string &path_world,
const SubgameSpec &gamespec,
bool simple_singleplayer_mode,
bool ipv6,
ChatInterface *iface
):
m_path_world(path_world),
m_gamespec(gamespec),
m_simple_singleplayer_mode(simple_singleplayer_mode),
m_async_fatal_error(""),
m_env(NULL),
m_con(PROTOCOL_ID,
512,
CONNECTION_TIMEOUT,
ipv6,
this),
m_banmanager(NULL),
m_rollback(NULL),
m_enable_rollback_recording(false),
m_emerge(NULL),
m_script(NULL),
m_itemdef(createItemDefManager()),
m_nodedef(createNodeDefManager()),
m_craftdef(createCraftDefManager()),
m_event(new EventManager()),
m_thread(NULL),
m_time_of_day_send_timer(0),
m_uptime(0),
m_clients(&m_con),
m_shutdown_requested(false),
m_shutdown_ask_reconnect(false),
m_admin_chat(iface),
m_ignore_map_edit_events(false),
m_ignore_map_edit_events_peer_id(0),
m_next_sound_id(0)
{
m_liquid_transform_timer = 0.0;
m_liquid_transform_every = 1.0;
m_masterserver_timer = 0.0;
m_emergethread_trigger_timer = 0.0;
m_savemap_timer = 0.0;
m_step_dtime = 0.0;
m_lag = g_settings->getFloat("dedicated_server_step");
if(path_world == "")
throw ServerError("Supplied empty world path");
if(!gamespec.isValid())
throw ServerError("Supplied invalid gamespec");
infostream<<"Server created for gameid \""<<m_gamespec.id<<"\"";
if(m_simple_singleplayer_mode)
infostream<<" in simple singleplayer mode"<<std::endl;
else
infostream<<std::endl;
infostream<<"- world: "<<m_path_world<<std::endl;
infostream<<"- game: "<<m_gamespec.path<<std::endl;
// Create world if it doesn't exist
if(!loadGameConfAndInitWorld(m_path_world, m_gamespec))
throw ServerError("Failed to initialize world");
// Create server thread
m_thread = new ServerThread(this);
// Create emerge manager
m_emerge = new EmergeManager(this);
// Create ban manager
std::string ban_path = m_path_world + DIR_DELIM "ipban.txt";
m_banmanager = new BanManager(ban_path);
ModConfiguration modconf(m_path_world);
m_mods = modconf.getMods();
std::vector<ModSpec> unsatisfied_mods = modconf.getUnsatisfiedMods();
// complain about mods with unsatisfied dependencies
if(!modconf.isConsistent()) {
for(std::vector<ModSpec>::iterator it = unsatisfied_mods.begin();
it != unsatisfied_mods.end(); ++it) {
ModSpec mod = *it;
errorstream << "mod \"" << mod.name << "\" has unsatisfied dependencies: ";
for(std::set<std::string>::iterator dep_it = mod.unsatisfied_depends.begin();
dep_it != mod.unsatisfied_depends.end(); ++dep_it)
errorstream << " \"" << *dep_it << "\"";
errorstream << std::endl;
}
}
Settings worldmt_settings;
std::string worldmt = m_path_world + DIR_DELIM + "world.mt";
worldmt_settings.readConfigFile(worldmt.c_str());
std::vector<std::string> names = worldmt_settings.getNames();
std::set<std::string> load_mod_names;
for(std::vector<std::string>::iterator it = names.begin();
it != names.end(); ++it) {
std::string name = *it;
if(name.compare(0,9,"load_mod_")==0 && worldmt_settings.getBool(name))
load_mod_names.insert(name.substr(9));
}
// complain about mods declared to be loaded, but not found
for(std::vector<ModSpec>::iterator it = m_mods.begin();
it != m_mods.end(); ++it)
load_mod_names.erase((*it).name);
for(std::vector<ModSpec>::iterator it = unsatisfied_mods.begin();
it != unsatisfied_mods.end(); ++it)
load_mod_names.erase((*it).name);
if(!load_mod_names.empty()) {
errorstream << "The following mods could not be found:";
for(std::set<std::string>::iterator it = load_mod_names.begin();
it != load_mod_names.end(); ++it)
errorstream << " \"" << (*it) << "\"";
errorstream << std::endl;
}
//lock environment
MutexAutoLock envlock(m_env_mutex);
// Create the Map (loads map_meta.txt, overriding configured mapgen params)
ServerMap *servermap = new ServerMap(path_world, this, m_emerge);
// Initialize scripting
infostream<<"Server: Initializing Lua"<<std::endl;
m_script = new GameScripting(this);
std::string script_path = getBuiltinLuaPath() + DIR_DELIM "init.lua";
m_script->loadMod(script_path, BUILTIN_MOD_NAME);
// Print mods
infostream << "Server: Loading mods: ";
for(std::vector<ModSpec>::iterator i = m_mods.begin();
i != m_mods.end(); ++i) {
const ModSpec &mod = *i;
infostream << mod.name << " ";
}
infostream << std::endl;
// Load and run "mod" scripts
for (std::vector<ModSpec>::iterator it = m_mods.begin();
it != m_mods.end(); ++it) {
const ModSpec &mod = *it;
if (!string_allowed(mod.name, MODNAME_ALLOWED_CHARS)) {
throw ModError("Error loading mod \"" + mod.name +
"\": Mod name does not follow naming conventions: "
"Only chararacters [a-z0-9_] are allowed.");
}
std::string script_path = mod.path + DIR_DELIM + "init.lua";
infostream << " [" << padStringRight(mod.name, 12) << "] [\""
<< script_path << "\"]" << std::endl;
m_script->loadMod(script_path, mod.name);
}
// Read Textures and calculate sha1 sums
fillMediaCache();
// Apply item aliases in the node definition manager
m_nodedef->updateAliases(m_itemdef);
// Apply texture overrides from texturepack/override.txt
std::string texture_path = g_settings->get("texture_path");
if (texture_path != "" && fs::IsDir(texture_path))
m_nodedef->applyTextureOverrides(texture_path + DIR_DELIM + "override.txt");
m_nodedef->setNodeRegistrationStatus(true);
// Perform pending node name resolutions
m_nodedef->runNodeResolveCallbacks();
// unmap node names for connected nodeboxes
m_nodedef->mapNodeboxConnections();
// init the recipe hashes to speed up crafting
m_craftdef->initHashes(this);
// Initialize Environment
m_env = new ServerEnvironment(servermap, m_script, this, m_path_world);
m_clients.setEnv(m_env);
if (!servermap->settings_mgr.makeMapgenParams())
FATAL_ERROR("Couldn't create any mapgen type");
// Initialize mapgens
m_emerge->initMapgens(servermap->getMapgenParams());
m_enable_rollback_recording = g_settings->getBool("enable_rollback_recording");
if (m_enable_rollback_recording) {
// Create rollback manager
m_rollback = new RollbackManager(m_path_world, this);
}
// Give environment reference to scripting api
m_script->initializeEnvironment(m_env);
// Register us to receive map edit events
servermap->addEventReceiver(this);
// If file exists, load environment metadata
if (fs::PathExists(m_path_world + DIR_DELIM "env_meta.txt")) {
infostream << "Server: Loading environment metadata" << std::endl;
m_env->loadMeta();
} else {
m_env->loadDefaultMeta();
}
// Add some test ActiveBlockModifiers to environment
add_legacy_abms(m_env, m_nodedef);
m_liquid_transform_every = g_settings->getFloat("liquid_update");
m_max_chatmessage_length = g_settings->getU16("chat_message_max_size");
}
Server::~Server()
{
infostream<<"Server destructing"<<std::endl;
// Send shutdown message
SendChatMessage(PEER_ID_INEXISTENT, L"*** Server shutting down");
{
MutexAutoLock envlock(m_env_mutex);
// Execute script shutdown hooks
m_script->on_shutdown();
infostream << "Server: Saving players" << std::endl;
m_env->saveLoadedPlayers();
infostream << "Server: Kicking players" << std::endl;
std::string kick_msg;
bool reconnect = false;
if (getShutdownRequested()) {
reconnect = m_shutdown_ask_reconnect;
kick_msg = m_shutdown_msg;
}
if (kick_msg == "") {
kick_msg = g_settings->get("kick_msg_shutdown");
}
m_env->kickAllPlayers(SERVER_ACCESSDENIED_SHUTDOWN,
kick_msg, reconnect);
infostream << "Server: Saving environment metadata" << std::endl;
m_env->saveMeta();
}
// Stop threads
stop();
delete m_thread;
// stop all emerge threads before deleting players that may have
// requested blocks to be emerged
m_emerge->stopThreads();
// Delete things in the reverse order of creation
delete m_emerge;
delete m_env;
delete m_rollback;
delete m_banmanager;
delete m_event;
delete m_itemdef;
delete m_nodedef;
delete m_craftdef;
// Deinitialize scripting
infostream<<"Server: Deinitializing scripting"<<std::endl;
delete m_script;
// Delete detached inventories
for (std::map<std::string, Inventory*>::iterator
i = m_detached_inventories.begin();
i != m_detached_inventories.end(); ++i) {
delete i->second;
}
}
void Server::start(Address bind_addr)
{
DSTACK(FUNCTION_NAME);
m_bind_addr = bind_addr;
infostream<<"Starting server on "
<< bind_addr.serializeString() <<"..."<<std::endl;
// Stop thread if already running
m_thread->stop();
// Initialize connection
m_con.SetTimeoutMs(30);
m_con.Serve(bind_addr);
// Start thread
m_thread->start();
// ASCII art for the win!
actionstream
<<" .__ __ __ "<<std::endl
<<" _____ |__| ____ _____/ |_ ____ _______/ |_ "<<std::endl
<<" / \\| |/ \\_/ __ \\ __\\/ __ \\ / ___/\\ __\\"<<std::endl
<<"| Y Y \\ | | \\ ___/| | \\ ___/ \\___ \\ | | "<<std::endl
<<"|__|_| /__|___| /\\___ >__| \\___ >____ > |__| "<<std::endl
<<" \\/ \\/ \\/ \\/ \\/ "<<std::endl;
actionstream<<"World at ["<<m_path_world<<"]"<<std::endl;
actionstream<<"Server for gameid=\""<<m_gamespec.id
<<"\" listening on "<<bind_addr.serializeString()<<":"
<<bind_addr.getPort() << "."<<std::endl;
}
void Server::stop()
{
DSTACK(FUNCTION_NAME);
infostream<<"Server: Stopping and waiting threads"<<std::endl;
// Stop threads (set run=false first so both start stopping)
m_thread->stop();
//m_emergethread.setRun(false);
m_thread->wait();
//m_emergethread.stop();
infostream<<"Server: Threads stopped"<<std::endl;
}
void Server::step(float dtime)
{
DSTACK(FUNCTION_NAME);
// Limit a bit
if (dtime > 2.0)
dtime = 2.0;
{
MutexAutoLock lock(m_step_dtime_mutex);
m_step_dtime += dtime;
}
// Throw if fatal error occurred in thread
std::string async_err = m_async_fatal_error.get();
if (!async_err.empty()) {
if (!m_simple_singleplayer_mode) {
m_env->kickAllPlayers(SERVER_ACCESSDENIED_CRASH,
g_settings->get("kick_msg_crash"),
g_settings->getBool("ask_reconnect_on_crash"));
}
throw ServerError("AsyncErr: " + async_err);
}
}
void Server::AsyncRunStep(bool initial_step)
{
DSTACK(FUNCTION_NAME);
g_profiler->add("Server::AsyncRunStep (num)", 1);
float dtime;
{
MutexAutoLock lock1(m_step_dtime_mutex);
dtime = m_step_dtime;
}
{
// Send blocks to clients
SendBlocks(dtime);
}
if((dtime < 0.001) && (initial_step == false))
return;
g_profiler->add("Server::AsyncRunStep with dtime (num)", 1);
//infostream<<"Server steps "<<dtime<<std::endl;
//infostream<<"Server::AsyncRunStep(): dtime="<<dtime<<std::endl;
{
MutexAutoLock lock1(m_step_dtime_mutex);
m_step_dtime -= dtime;
}
/*
Update uptime
*/
{
m_uptime.set(m_uptime.get() + dtime);
}
handlePeerChanges();
/*
Update time of day and overall game time
*/
m_env->setTimeOfDaySpeed(g_settings->getFloat("time_speed"));
/*
Send to clients at constant intervals
*/
m_time_of_day_send_timer -= dtime;
if(m_time_of_day_send_timer < 0.0) {
m_time_of_day_send_timer = g_settings->getFloat("time_send_interval");
u16 time = m_env->getTimeOfDay();
float time_speed = g_settings->getFloat("time_speed");
SendTimeOfDay(PEER_ID_INEXISTENT, time, time_speed);
}
{
MutexAutoLock lock(m_env_mutex);
// Figure out and report maximum lag to environment
float max_lag = m_env->getMaxLagEstimate();
max_lag *= 0.9998; // Decrease slowly (about half per 5 minutes)
if(dtime > max_lag){
if(dtime > 0.1 && dtime > max_lag * 2.0)
infostream<<"Server: Maximum lag peaked to "<<dtime
<<" s"<<std::endl;
max_lag = dtime;
}
m_env->reportMaxLagEstimate(max_lag);
// Step environment
ScopeProfiler sp(g_profiler, "SEnv step");
ScopeProfiler sp2(g_profiler, "SEnv step avg", SPT_AVG);
m_env->step(dtime);
}
static const float map_timer_and_unload_dtime = 2.92;
if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime))
{
MutexAutoLock lock(m_env_mutex);
// Run Map's timers and unload unused data
ScopeProfiler sp(g_profiler, "Server: map timer and unload");
m_env->getMap().timerUpdate(map_timer_and_unload_dtime,
g_settings->getFloat("server_unload_unused_data_timeout"),
U32_MAX);
}
/*
Listen to the admin chat, if available
*/
if (m_admin_chat) {
if (!m_admin_chat->command_queue.empty()) {
MutexAutoLock lock(m_env_mutex);
while (!m_admin_chat->command_queue.empty()) {
ChatEvent *evt = m_admin_chat->command_queue.pop_frontNoEx();
handleChatInterfaceEvent(evt);
delete evt;
}
}
m_admin_chat->outgoing_queue.push_back(
new ChatEventTimeInfo(m_env->getGameTime(), m_env->getTimeOfDay()));
}
/*
Do background stuff
*/
/* Transform liquids */
m_liquid_transform_timer += dtime;
if(m_liquid_transform_timer >= m_liquid_transform_every)
{
m_liquid_transform_timer -= m_liquid_transform_every;
MutexAutoLock lock(m_env_mutex);
ScopeProfiler sp(g_profiler, "Server: liquid transform");
std::map<v3s16, MapBlock*> modified_blocks;
m_env->getMap().transformLiquids(modified_blocks);
#if 0
/*
Update lighting
*/
core::map<v3s16, MapBlock*> lighting_modified_blocks;
ServerMap &map = ((ServerMap&)m_env->getMap());
map.updateLighting(modified_blocks, lighting_modified_blocks);
// Add blocks modified by lighting to modified_blocks
for(core::map<v3s16, MapBlock*>::Iterator
i = lighting_modified_blocks.getIterator();
i.atEnd() == false; i++)
{
MapBlock *block = i.getNode()->getValue();
modified_blocks.insert(block->getPos(), block);
}
#endif
/*
Set the modified blocks unsent for all the clients
*/
if(!modified_blocks.empty())
{
SetBlocksNotSent(modified_blocks);
}
}
m_clients.step(dtime);
m_lag += (m_lag > dtime ? -1 : 1) * dtime/100;
#if USE_CURL
// send masterserver announce
{
float &counter = m_masterserver_timer;
if(!isSingleplayer() && (!counter || counter >= 300.0) &&
g_settings->getBool("server_announce"))
{
ServerList::sendAnnounce(counter ? "update" : "start",
m_bind_addr.getPort(),
m_clients.getPlayerNames(),
m_uptime.get(),
m_env->getGameTime(),
m_lag,
m_gamespec.id,
Mapgen::getMapgenName(m_emerge->mgparams->mgtype),
m_mods);
counter = 0.01;
}
counter += dtime;
}
#endif
/*
Check added and deleted active objects
*/
{
//infostream<<"Server: Checking added and deleted active objects"<<std::endl;
MutexAutoLock envlock(m_env_mutex);
m_clients.lock();
UNORDERED_MAP<u16, RemoteClient*> clients = m_clients.getClientList();
ScopeProfiler sp(g_profiler, "Server: checking added and deleted objs");
// Radius inside which objects are active
static const s16 radius =
g_settings->getS16("active_object_send_range_blocks") * MAP_BLOCKSIZE;
// Radius inside which players are active
static const bool is_transfer_limited =
g_settings->exists("unlimited_player_transfer_distance") &&
!g_settings->getBool("unlimited_player_transfer_distance");
static const s16 player_transfer_dist = g_settings->getS16("player_transfer_distance") * MAP_BLOCKSIZE;
s16 player_radius = player_transfer_dist;
if (player_radius == 0 && is_transfer_limited)
player_radius = radius;
for (UNORDERED_MAP<u16, RemoteClient*>::iterator i = clients.begin();
i != clients.end(); ++i) {
RemoteClient *client = i->second;
// If definitions and textures have not been sent, don't
// send objects either
if (client->getState() < CS_DefinitionsSent)
continue;
RemotePlayer *player = m_env->getPlayer(client->peer_id);
if (player == NULL) {
// This can happen if the client timeouts somehow
/*warningstream<<FUNCTION_NAME<<": Client "
<<client->peer_id
<<" has no associated player"<<std::endl;*/
continue;
}
PlayerSAO *playersao = player->getPlayerSAO();
if (playersao == NULL)
continue;
s16 my_radius = MYMIN(radius, playersao->getWantedRange() * MAP_BLOCKSIZE);
if (my_radius <= 0) my_radius = radius;
//infostream << "Server: Active Radius " << my_radius << std::endl;
std::queue<u16> removed_objects;
std::queue<u16> added_objects;
m_env->getRemovedActiveObjects(playersao, my_radius, player_radius,
client->m_known_objects, removed_objects);
m_env->getAddedActiveObjects(playersao, my_radius, player_radius,
client->m_known_objects, added_objects);
// Ignore if nothing happened
if (removed_objects.empty() && added_objects.empty()) {
continue;
}
std::string data_buffer;
char buf[4];
// Handle removed objects
writeU16((u8*)buf, removed_objects.size());
data_buffer.append(buf, 2);
while (!removed_objects.empty()) {
// Get object
u16 id = removed_objects.front();
ServerActiveObject* obj = m_env->getActiveObject(id);
// Add to data buffer for sending
writeU16((u8*)buf, id);
data_buffer.append(buf, 2);
// Remove from known objects
client->m_known_objects.erase(id);
if(obj && obj->m_known_by_count > 0)
obj->m_known_by_count--;
removed_objects.pop();
}
// Handle added objects
writeU16((u8*)buf, added_objects.size());
data_buffer.append(buf, 2);
while (!added_objects.empty()) {
// Get object
u16 id = added_objects.front();
ServerActiveObject* obj = m_env->getActiveObject(id);
// Get object type
u8 type = ACTIVEOBJECT_TYPE_INVALID;
if(obj == NULL)
warningstream<<FUNCTION_NAME
<<": NULL object"<<std::endl;
else
type = obj->getSendType();
// Add to data buffer for sending
writeU16((u8*)buf, id);
data_buffer.append(buf, 2);
writeU8((u8*)buf, type);
data_buffer.append(buf, 1);
if(obj)
data_buffer.append(serializeLongString(
obj->getClientInitializationData(client->net_proto_version)));
else
data_buffer.append(serializeLongString(""));
// Add to known objects
client->m_known_objects.insert(id);
if(obj)
obj->m_known_by_count++;
added_objects.pop();
}
u32 pktSize = SendActiveObjectRemoveAdd(client->peer_id, data_buffer);
verbosestream << "Server: Sent object remove/add: "
<< removed_objects.size() << " removed, "
<< added_objects.size() << " added, "
<< "packet size is " << pktSize << std::endl;
}
m_clients.unlock();
}
/*
Send object messages
*/
{
MutexAutoLock envlock(m_env_mutex);
ScopeProfiler sp(g_profiler, "Server: sending object messages");
// Key = object id
// Value = data sent by object
UNORDERED_MAP<u16, std::vector<ActiveObjectMessage>* > buffered_messages;
// Get active object messages from environment
for(;;) {
ActiveObjectMessage aom = m_env->getActiveObjectMessage();
if (aom.id == 0)
break;
std::vector<ActiveObjectMessage>* message_list = NULL;
UNORDERED_MAP<u16, std::vector<ActiveObjectMessage>* >::iterator n;
n = buffered_messages.find(aom.id);
if (n == buffered_messages.end()) {
message_list = new std::vector<ActiveObjectMessage>;
buffered_messages[aom.id] = message_list;
}
else {
message_list = n->second;
}
message_list->push_back(aom);
}
m_clients.lock();
UNORDERED_MAP<u16, RemoteClient*> clients = m_clients.getClientList();
// Route data to every client
for (UNORDERED_MAP<u16, RemoteClient*>::iterator i = clients.begin();
i != clients.end(); ++i) {
RemoteClient *client = i->second;
std::string reliable_data;
std::string unreliable_data;
// Go through all objects in message buffer
for (UNORDERED_MAP<u16, std::vector<ActiveObjectMessage>* >::iterator
j = buffered_messages.begin();
j != buffered_messages.end(); ++j) {
// If object is not known by client, skip it
u16 id = j->first;
if (client->m_known_objects.find(id) == client->m_known_objects.end())
continue;
// Get message list of object
std::vector<ActiveObjectMessage>* list = j->second;
// Go through every message
for (std::vector<ActiveObjectMessage>::iterator
k = list->begin(); k != list->end(); ++k) {
// Compose the full new data with header
ActiveObjectMessage aom = *k;
std::string new_data;
// Add object id
char buf[2];
writeU16((u8*)&buf[0], aom.id);
new_data.append(buf, 2);
// Add data
new_data += serializeString(aom.datastring);
// Add data to buffer
if(aom.reliable)
reliable_data += new_data;
else
unreliable_data += new_data;
}
}
/*
reliable_data and unreliable_data are now ready.
Send them.
*/
if(reliable_data.size() > 0) {
SendActiveObjectMessages(client->peer_id, reliable_data);
}
if(unreliable_data.size() > 0) {
SendActiveObjectMessages(client->peer_id, unreliable_data, false);
}
}
m_clients.unlock();
// Clear buffered_messages
for (UNORDERED_MAP<u16, std::vector<ActiveObjectMessage>* >::iterator
i = buffered_messages.begin();
i != buffered_messages.end(); ++i) {
delete i->second;
}
}
/*
Send queued-for-sending map edit events.
*/
{
// We will be accessing the environment
MutexAutoLock lock(m_env_mutex);
// Don't send too many at a time
//u32 count = 0;
// Single change sending is disabled if queue size is not small
bool disable_single_change_sending = false;
if(m_unsent_map_edit_queue.size() >= 4)
disable_single_change_sending = true;
int event_count = m_unsent_map_edit_queue.size();
// We'll log the amount of each
Profiler prof;
while(m_unsent_map_edit_queue.size() != 0)
{
MapEditEvent* event = m_unsent_map_edit_queue.front();
m_unsent_map_edit_queue.pop();
// Players far away from the change are stored here.
// Instead of sending the changes, MapBlocks are set not sent
// for them.
std::vector<u16> far_players;
switch (event->type) {
case MEET_ADDNODE:
case MEET_SWAPNODE:
prof.add("MEET_ADDNODE", 1);
sendAddNode(event->p, event->n, event->already_known_by_peer,
&far_players, disable_single_change_sending ? 5 : 30,
event->type == MEET_ADDNODE);
break;
case MEET_REMOVENODE:
prof.add("MEET_REMOVENODE", 1);
sendRemoveNode(event->p, event->already_known_by_peer,
&far_players, disable_single_change_sending ? 5 : 30);
break;
case MEET_BLOCK_NODE_METADATA_CHANGED:
infostream << "Server: MEET_BLOCK_NODE_METADATA_CHANGED" << std::endl;
prof.add("MEET_BLOCK_NODE_METADATA_CHANGED", 1);
setBlockNotSent(event->p);
break;
case MEET_OTHER:
infostream << "Server: MEET_OTHER" << std::endl;
prof.add("MEET_OTHER", 1);
for(std::set<v3s16>::iterator
i = event->modified_blocks.begin();
i != event->modified_blocks.end(); ++i) {
setBlockNotSent(*i);
}
break;
default:
prof.add("unknown", 1);
warningstream << "Server: Unknown MapEditEvent "
<< ((u32)event->type) << std::endl;
break;
}
/*
Set blocks not sent to far players
*/
if(!far_players.empty()) {
// Convert list format to that wanted by SetBlocksNotSent
std::map<v3s16, MapBlock*> modified_blocks2;
for(std::set<v3s16>::iterator
i = event->modified_blocks.begin();
i != event->modified_blocks.end(); ++i) {
modified_blocks2[*i] =
m_env->getMap().getBlockNoCreateNoEx(*i);
}
// Set blocks not sent
for(std::vector<u16>::iterator
i = far_players.begin();
i != far_players.end(); ++i) {
if(RemoteClient *client = getClient(*i))
client->SetBlocksNotSent(modified_blocks2);
}
}
delete event;
/*// Don't send too many at a time
count++;
if(count >= 1 && m_unsent_map_edit_queue.size() < 100)
break;*/
}
if(event_count >= 5){
infostream<<"Server: MapEditEvents:"<<std::endl;
prof.print(infostream);
} else if(event_count != 0){
verbosestream<<"Server: MapEditEvents:"<<std::endl;
prof.print(verbosestream);
}
}
/*
Trigger emergethread (it somehow gets to a non-triggered but
bysy state sometimes)
*/
{
float &counter = m_emergethread_trigger_timer;
counter += dtime;
if (counter >= 2.0) {
counter = 0.0;
m_emerge->startThreads();
}
}