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P0nk
2021-03-30 21:07:35 +02:00
parent 4acc5675d6
commit 813643036b
817 changed files with 16 additions and 0 deletions
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75
src/main/java/net/server/audit/LockCollector.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit;
import java.util.ArrayList;
import java.util.List;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
/**
*
* @author Ronan
*/
public class LockCollector {
private static final LockCollector instance = new LockCollector();
public static LockCollector getInstance() {
return instance;
}
private Map<Runnable, Integer> disposableLocks = new HashMap<>(200);
private final Lock lock = new ReentrantLock(true);
public void registerDisposeAction(Runnable r) {
lock.lock();
try {
disposableLocks.put(r, 0);
} finally {
lock.unlock();
}
}
public void runLockCollector() {
List<Runnable> toDispose = new ArrayList<>();
lock.lock();
try {
for(Entry<Runnable, Integer> e : disposableLocks.entrySet()) {
Integer eVal = e.getValue();
if(eVal > 5) { // updates each 2min
toDispose.add(e.getKey());
} else {
disposableLocks.put(e.getKey(), ++eVal);
}
}
} finally {
lock.unlock();
}
for(Runnable r : toDispose) {
r.run();
}
}
}

291
src/main/java/net/server/audit/ThreadTracker.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.TimeZone;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import net.server.audit.locks.MonitoredLockType;
import server.TimerManager;
import tools.FilePrinter;
/**
*
* @author RonanLana
*
* This tool has the main purpose of auditing deadlocks throughout the server and must be used only for debugging. The flag is USE_THREAD_TRACKER.
*/
public class ThreadTracker {
private static ThreadTracker instance = null;
public static ThreadTracker getInstance() {
if (instance == null) {
instance = new ThreadTracker();
}
return instance;
}
private final Lock ttLock = new ReentrantLock(true);
private final Map<Long, List<MonitoredLockType>> threadTracker = new HashMap<>();
private final Map<Long, Integer> threadUpdate = new HashMap<>();
private final Map<Long, Thread> threads = new HashMap<>();
private final Map<Long, AtomicInteger> lockCount = new HashMap<>();
private final Map<Long, MonitoredLockType> lockIds = new HashMap<>();
private final Map<Long, Long> lockThreads = new HashMap<>();
private final Map<Long, Integer> lockUpdate = new HashMap<>();
private final Map<MonitoredLockType, Map<Long, Integer>> locks = new HashMap<>();
ScheduledFuture<?> threadTrackerSchedule;
private String printThreadTrackerState(String dateFormat) {
Map<MonitoredLockType, List<Integer>> lockValues = new HashMap<>();
Set<Long> executingThreads = new HashSet<>();
for(Map.Entry<Long, AtomicInteger> lc : lockCount.entrySet()) {
if(lc.getValue().get() != 0) {
executingThreads.add(lockThreads.get(lc.getKey()));
MonitoredLockType lockId = lockIds.get(lc.getKey());
List<Integer> list = lockValues.get(lockId);
if(list == null) {
list = new ArrayList<>();
lockValues.put(lockId, list);
}
list.add(lc.getValue().get());
}
}
String s = "----------------------------\r\n" + dateFormat + "\r\n ";
s += "Lock-thread usage count:";
for(Map.Entry<MonitoredLockType, List<Integer>> lock : lockValues.entrySet()) {
s += ("\r\n " + lock.getKey().name() + ": ");
for(Integer i : lock.getValue()) {
s += (i + " ");
}
}
s += "\r\n\r\nThread opened lock path:";
for(Long tid : executingThreads) {
s += "\r\n";
for(MonitoredLockType lockid : threadTracker.get(tid)) {
s += (lockid.name() + " ");
}
s += "|";
}
s += "\r\n\r\n";
return s;
}
private static String printThreadLog(List<MonitoredLockType> stillLockedPath, String dateFormat) {
String s = "----------------------------\r\n" + dateFormat + "\r\n ";
for(MonitoredLockType lock : stillLockedPath) {
s += (lock.name() + " ");
}
s += "\r\n\r\n";
return s;
}
private static String printThreadStack(StackTraceElement[] list, String dateFormat) {
String s = "----------------------------\r\n" + dateFormat + "\r\n";
for(int i = 0; i < list.length; i++) {
s += (" " + list[i].toString() + "\r\n");
}
return s;
}
public void accessThreadTracker(boolean update, boolean lock, MonitoredLockType lockId, long lockOid) {
ttLock.lock();
try {
if(update) {
if(!lock) { // update tracker
List<Long> toRemove = new ArrayList<>();
for(Long l : threadUpdate.keySet()) {
int next = threadUpdate.get(l) + 1;
if(next == 4) {
List<MonitoredLockType> tt = threadTracker.get(l);
if(tt.isEmpty()) {
toRemove.add(l);
} else {
StackTraceElement[] ste = threads.get(l).getStackTrace();
if(ste.length > 0) {
DateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
dateFormat.setTimeZone(TimeZone.getDefault());
String df = dateFormat.format(new Date());
FilePrinter.print(FilePrinter.DEADLOCK_LOCKS, printThreadLog(tt, df));
FilePrinter.print(FilePrinter.DEADLOCK_STACK, printThreadStack(ste, df));
}
}
}
threadUpdate.put(l, next);
}
for(Long l : toRemove) {
threadTracker.remove(l);
threadUpdate.remove(l);
threads.remove(l);
for(Map<Long, Integer> threadLock : locks.values()) {
threadLock.remove(l);
}
}
toRemove.clear();
for(Entry<Long, Integer> it : lockUpdate.entrySet()) {
int val = it.getValue() + 1;
if(val < 60) {
lockUpdate.put(it.getKey(), val);
} else {
toRemove.add(it.getKey()); // free the structure after 60 silent updates
}
}
for(Long l : toRemove) {
lockCount.remove(l);
lockIds.remove(l);
lockThreads.remove(l);
lockUpdate.remove(l);
}
} else { // print status
DateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
dateFormat.setTimeZone(TimeZone.getDefault());
FilePrinter.printError(FilePrinter.DEADLOCK_STATE, printThreadTrackerState(dateFormat.format(new Date())));
//FilePrinter.printError(FilePrinter.DEADLOCK_STATE, "[" + dateFormat.format(new Date()) + "] Presenting current lock path for lockid " + lockId.name() + ".\r\n" + printLockStatus(lockId) + "\r\n-------------------------------");
}
} else {
long tid = Thread.currentThread().getId();
if(lock) {
AtomicInteger c = lockCount.get(lockOid);
if(c == null) {
c = new AtomicInteger(0);
lockCount.put(lockOid, c);
lockIds.put(lockOid, lockId);
lockThreads.put(lockOid, tid);
lockUpdate.put(lockOid, 0);
}
c.incrementAndGet();
List<MonitoredLockType> list = threadTracker.get(tid);
if(list == null) {
list = new ArrayList<>(5);
threadTracker.put(tid, list);
threadUpdate.put(tid, 0);
threads.put(tid, Thread.currentThread());
} else if(list.isEmpty()) {
threadUpdate.put(tid, 0);
}
list.add(lockId);
Map<Long, Integer> threadLock = locks.get(lockId);
if(threadLock == null) {
threadLock = new HashMap<>(5);
locks.put(lockId, threadLock);
}
Integer lc = threadLock.get(tid);
if(lc != null) {
threadLock.put(tid, lc + 1);
} else {
threadLock.put(tid, 1);
}
}
else {
AtomicInteger c = lockCount.get(lockOid);
if (c != null) { // thanks BHB for detecting an NPE here
c.decrementAndGet();
}
lockUpdate.put(lockOid, 0);
List<MonitoredLockType> list = threadTracker.get(tid);
for(int i = list.size() - 1; i >= 0; i--) {
if(lockId.equals(list.get(i))) {
list.remove(i);
break;
}
}
Map<Long, Integer> threadLock = locks.get(lockId);
threadLock.put(tid, threadLock.get(tid) - 1);
}
}
} finally {
ttLock.unlock();
}
}
private String printLockStatus(MonitoredLockType lockId) {
String s = "";
for(Long threadid : locks.get(lockId).keySet()) {
for(MonitoredLockType lockid : threadTracker.get(threadid)) {
s += (" " + lockid.name());
}
s += " |\r\n";
}
return s;
}
public void registerThreadTrackerTask() {
threadTrackerSchedule = TimerManager.getInstance().register(new Runnable() {
@Override
public void run() {
accessThreadTracker(true, false, MonitoredLockType.UNDEFINED, -1);
}
}, 10000, 10000);
}
public void cancelThreadTrackerTask() {
threadTrackerSchedule.cancel(false);
}
}

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src/main/java/net/server/audit/locks/MonitoredLockType.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks;
/**
*
* @author RonanLana
*/
public enum MonitoredLockType {
UNDEFINED,
INTERVAL,
CHARACTER_CHR,
CHARACTER_CPN,
CHARACTER_EFF,
CHARACTER_PET,
CHARACTER_PRT,
CHARACTER_EVT,
CHARACTER_STA,
CLIENT,
CLIENT_ANNOUNCER,
CLIENT_ENCODER,
CLIENT_SESSION,
CLIENT_LOGIN,
BOOK,
ITEM,
INVENTORY,
SRVHANDLER_IDLE,
SRVHANDLER_TEMP,
BUFF_STORAGE,
PLAYER_STORAGE,
PLAYER_DOOR,
SERVER,
SERVER_DISEASES,
SERVER_LOGIN,
SERVER_LOGIN_COORD,
SERVER_WORLDS,
MERCHANT,
CHANNEL,
CHANNEL_EVENTS,
CHANNEL_FACEEXPRS,
CHANNEL_FACESCHDL,
CHANNEL_MOBACTION,
CHANNEL_MOBANIMAT,
CHANNEL_MOBMIST,
CHANNEL_MOBSKILL,
CHANNEL_MOBSTATUS,
CHANNEL_OVTSTATUS,
CHANNEL_OVERALL,
GUILD,
PARTY,
WORLD_PARTY,
WORLD_PARTY_SEARCH_ECHELON,
WORLD_PARTY_SEARCH_QUEUE,
WORLD_PARTY_SEARCH_STORAGE,
WORLD_SRVMESSAGES,
WORLD_PETS,
WORLD_CHARS,
WORLD_CHANNELS,
WORLD_MOUNTS,
WORLD_PSHOPS,
WORLD_MERCHS,
WORLD_MAPOBJS,
WORLD_SAVECHARS,
WORLD_SUGGEST,
EIM,
EIM_PARTY,
EIM_SCRIPT,
EM_LOBBY,
EM_QUEUE,
EM_SCHDL,
EM_START,
CASHSHOP,
VISITOR_PSHOP,
STORAGE,
MOB,
MOB_AGGRO,
MOB_ANI,
MOB_EXT,
MOB_STATI,
MOBSKILL_FACTORY,
PORTAL,
VISITOR_MERCH,
MAP_CHRS,
MAP_OBJS,
MAP_MANAGER,
MAP_ITEM,
MAP_LOOT,
MAP_BOUNDS,
MAP_AGGRO,
MAP_AGGRO_IDLE,
MINIDUNGEON,
REACTOR,
REACTOR_HIT;
}

36
src/main/java/net/server/audit/locks/MonitoredReadLock.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks;
/**
*
* @author RonanLana
*/
public interface MonitoredReadLock {
public void lock();
public void unlock();
public boolean tryLock();
public MonitoredReadLock dispose();
}

36
src/main/java/net/server/audit/locks/MonitoredReentrantLock.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks;
/**
*
* @author RonanLana
*/
public interface MonitoredReentrantLock {
public void lock();
public void unlock();
public boolean tryLock();
public MonitoredReentrantLock dispose();
}

50
src/main/java/net/server/audit/locks/MonitoredReentrantReadWriteLock.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks;
import java.util.concurrent.locks.ReentrantReadWriteLock;
/**
*
* @author RonanLana
*/
public class MonitoredReentrantReadWriteLock extends ReentrantReadWriteLock {
public final MonitoredLockType id;
public MonitoredReentrantReadWriteLock(MonitoredLockType id) {
super();
this.id = id;
}
public MonitoredReentrantReadWriteLock(MonitoredLockType id, boolean fair) {
super(fair);
this.id = id;
}
@Override
public ReadLock readLock() {
return super.readLock();
}
@Override
public WriteLock writeLock() {
return super.writeLock();
}
}

36
src/main/java/net/server/audit/locks/MonitoredWriteLock.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks;
/**
*
* @author RonanLana
*/
public interface MonitoredWriteLock {
public void lock();
public void unlock();
public boolean tryLock();
public MonitoredWriteLock dispose();
}

171
src/main/java/net/server/audit/locks/active/TrackerReadLock.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks.active;
import config.YamlConfig;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.ScheduledFuture;
import server.TimerManager;
import net.server.audit.ThreadTracker;
import net.server.audit.locks.MonitoredLockType;
import net.server.audit.locks.MonitoredReadLock;
import net.server.audit.locks.MonitoredReentrantReadWriteLock;
import net.server.audit.locks.empty.EmptyReadLock;
import tools.FilePrinter;
/**
*
* @author RonanLana
*/
public class TrackerReadLock extends ReentrantReadWriteLock.ReadLock implements MonitoredReadLock {
private ScheduledFuture<?> timeoutSchedule = null;
private StackTraceElement[] deadlockedState = null;
private final MonitoredLockType id;
private final int hashcode;
private final Lock state = new ReentrantLock(true);
private final AtomicInteger reentrantCount = new AtomicInteger(0);
public TrackerReadLock(MonitoredReentrantReadWriteLock lock) {
super(lock);
this.id = lock.id;
hashcode = this.hashCode();
}
@Override
public void lock() {
if(YamlConfig.config.server.USE_THREAD_TRACKER) {
if(deadlockedState != null) {
DateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
dateFormat.setTimeZone(TimeZone.getDefault());
//FilePrinter.printError(FilePrinter.DEADLOCK_ERROR, "[CRITICAL] " + dateFormat.format(new Date()) + " Deadlock occurred when trying to use the '" + id.name() + "' lock resources:\r\n" + printStackTrace(deadlockedState));
ThreadTracker.getInstance().accessThreadTracker(true, true, id, hashcode);
deadlockedState = null;
}
registerLocking();
}
super.lock();
}
@Override
public void unlock() {
if(YamlConfig.config.server.USE_THREAD_TRACKER) {
unregisterLocking();
}
super.unlock();
}
@Override
public boolean tryLock() {
if(super.tryLock()) {
if(YamlConfig.config.server.USE_THREAD_TRACKER) {
if(deadlockedState != null) {
//FilePrinter.printError(FilePrinter.DEADLOCK_ERROR, "Deadlock occurred when trying to use the '" + id.name() + "' lock resources:\r\n" + printStackTrace(deadlockedState));
ThreadTracker.getInstance().accessThreadTracker(true, true, id, hashcode);
deadlockedState = null;
}
registerLocking();
}
return true;
} else {
return false;
}
}
private void registerLocking() {
state.lock();
try {
ThreadTracker.getInstance().accessThreadTracker(false, true, id, hashcode);
if(reentrantCount.incrementAndGet() == 1) {
final Thread t = Thread.currentThread();
timeoutSchedule = TimerManager.getInstance().schedule(new Runnable() {
@Override
public void run() {
issueDeadlock(t);
}
}, YamlConfig.config.server.LOCK_MONITOR_TIME);
}
} finally {
state.unlock();
}
}
private void unregisterLocking() {
state.lock();
try {
if(reentrantCount.decrementAndGet() == 0) {
if(timeoutSchedule != null) {
timeoutSchedule.cancel(false);
timeoutSchedule = null;
}
}
ThreadTracker.getInstance().accessThreadTracker(false, false, id, hashcode);
} finally {
state.unlock();
}
}
private void issueDeadlock(Thread t) {
deadlockedState = t.getStackTrace();
//super.unlock();
}
private static String printStackTrace(StackTraceElement[] list) {
String s = "";
for(int i = 0; i < list.length; i++) {
s += (" " + list[i].toString() + "\r\n");
}
return s;
}
@Override
public MonitoredReadLock dispose() {
state.lock();
try {
if(timeoutSchedule != null) {
timeoutSchedule.cancel(false);
timeoutSchedule = null;
}
reentrantCount.set(Integer.MAX_VALUE);
} finally {
state.unlock();
}
//unlock();
return new EmptyReadLock(id);
}
}

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src/main/java/net/server/audit/locks/active/TrackerReentrantLock.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks.active;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.ScheduledFuture;
import config.YamlConfig;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;
import server.TimerManager;
import net.server.audit.ThreadTracker;
import net.server.audit.locks.MonitoredLockType;
import net.server.audit.locks.MonitoredReentrantLock;
import net.server.audit.locks.empty.EmptyReentrantLock;
import tools.FilePrinter;
/**
*
* @author RonanLana
*/
public class TrackerReentrantLock extends ReentrantLock implements MonitoredReentrantLock {
private ScheduledFuture<?> timeoutSchedule = null;
private StackTraceElement[] deadlockedState = null;
private final MonitoredLockType id;
private final int hashcode;
private final Lock state = new ReentrantLock(true);
private final AtomicInteger reentrantCount = new AtomicInteger(0);
public TrackerReentrantLock(MonitoredLockType id) {
super();
this.id = id;
hashcode = this.hashCode();
}
public TrackerReentrantLock(MonitoredLockType id, boolean fair) {
super(fair);
this.id = id;
hashcode = this.hashCode();
}
@Override
public void lock() {
if(YamlConfig.config.server.USE_THREAD_TRACKER) {
if(deadlockedState != null) {
DateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
dateFormat.setTimeZone(TimeZone.getDefault());
//FilePrinter.printError(FilePrinter.DEADLOCK_ERROR, "[CRITICAL] " + dateFormat.format(new Date()) + " Deadlock occurred when trying to use the '" + id.name() + "' lock resources:\r\n" + printStackTrace(deadlockedState));
ThreadTracker.getInstance().accessThreadTracker(true, true, id, hashcode);
deadlockedState = null;
}
registerLocking();
}
super.lock();
}
@Override
public void unlock() {
if(YamlConfig.config.server.USE_THREAD_TRACKER) {
unregisterLocking();
}
super.unlock();
}
@Override
public boolean tryLock() {
if(super.tryLock()) {
if(YamlConfig.config.server.USE_THREAD_TRACKER) {
if(deadlockedState != null) {
//FilePrinter.printError(FilePrinter.DEADLOCK_ERROR, "Deadlock occurred when trying to use the '" + id.name() + "' lock resources:\r\n" + printStackTrace(deadlockedState));
ThreadTracker.getInstance().accessThreadTracker(true, true, id, hashcode);
deadlockedState = null;
}
registerLocking();
}
return true;
} else {
return false;
}
}
private void registerLocking() {
state.lock();
try {
ThreadTracker.getInstance().accessThreadTracker(false, true, id, hashcode);
if(reentrantCount.incrementAndGet() == 1) {
final Thread t = Thread.currentThread();
timeoutSchedule = TimerManager.getInstance().schedule(new Runnable() {
@Override
public void run() {
issueDeadlock(t);
}
}, YamlConfig.config.server.LOCK_MONITOR_TIME);
}
} finally {
state.unlock();
}
}
private void unregisterLocking() {
state.lock();
try {
if(reentrantCount.decrementAndGet() == 0) {
if(timeoutSchedule != null) {
timeoutSchedule.cancel(false);
timeoutSchedule = null;
}
}
ThreadTracker.getInstance().accessThreadTracker(false, false, id, hashcode);
} finally {
state.unlock();
}
}
private void issueDeadlock(Thread t) {
deadlockedState = t.getStackTrace();
//super.unlock();
}
private static String printStackTrace(StackTraceElement[] list) {
String s = "";
for(int i = 0; i < list.length; i++) {
s += (" " + list[i].toString() + "\r\n");
}
return s;
}
@Override
public MonitoredReentrantLock dispose() {
state.lock();
try {
if(timeoutSchedule != null) {
timeoutSchedule.cancel(false);
timeoutSchedule = null;
}
reentrantCount.set(Integer.MAX_VALUE);
} finally {
state.unlock();
}
//unlock();
return new EmptyReentrantLock(id);
}
}

169
src/main/java/net/server/audit/locks/active/TrackerWriteLock.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks.active;
import config.YamlConfig;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.ScheduledFuture;
import server.TimerManager;
import net.server.audit.ThreadTracker;
import net.server.audit.locks.MonitoredLockType;
import net.server.audit.locks.MonitoredReentrantReadWriteLock;
import net.server.audit.locks.MonitoredWriteLock;
import net.server.audit.locks.empty.EmptyWriteLock;
import tools.FilePrinter;
/**
*
* @author RonanLana
*/
public class TrackerWriteLock extends ReentrantReadWriteLock.WriteLock implements MonitoredWriteLock {
private ScheduledFuture<?> timeoutSchedule = null;
private StackTraceElement[] deadlockedState = null;
private final MonitoredLockType id;
private final int hashcode;
private final Lock state = new ReentrantLock(true);
private final AtomicInteger reentrantCount = new AtomicInteger(0);
public TrackerWriteLock(MonitoredReentrantReadWriteLock lock) {
super(lock);
this.id = lock.id;
hashcode = this.hashCode();
}
@Override
public void lock() {
if(YamlConfig.config.server.USE_THREAD_TRACKER) {
if(deadlockedState != null) {
DateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
dateFormat.setTimeZone(TimeZone.getDefault());
//FilePrinter.printError(FilePrinter.DEADLOCK_ERROR, "[CRITICAL] " + dateFormat.format(new Date()) + " Deadlock occurred when trying to use the '" + id.name() + "' lock resources:\r\n" + printStackTrace(deadlockedState));
ThreadTracker.getInstance().accessThreadTracker(true, true, id, hashcode);
deadlockedState = null;
}
registerLocking();
}
super.lock();
}
@Override
public void unlock() {
if(YamlConfig.config.server.USE_THREAD_TRACKER) {
unregisterLocking();
}
super.unlock();
}
@Override
public boolean tryLock() {
if(super.tryLock()) {
if(YamlConfig.config.server.USE_THREAD_TRACKER) {
if(deadlockedState != null) {
//FilePrinter.printError(FilePrinter.DEADLOCK_ERROR, "Deadlock occurred when trying to use the '" + id.name() + "' lock resources:\r\n" + printStackTrace(deadlockedState));
ThreadTracker.getInstance().accessThreadTracker(true, true, id, hashcode);
deadlockedState = null;
}
registerLocking();
}
return true;
} else {
return false;
}
}
private void registerLocking() {
state.lock();
try {
ThreadTracker.getInstance().accessThreadTracker(false, true, id, hashcode);
if(reentrantCount.incrementAndGet() == 1) {
final Thread t = Thread.currentThread();
timeoutSchedule = TimerManager.getInstance().schedule(new Runnable() {
@Override
public void run() {
issueDeadlock(t);
}
}, YamlConfig.config.server.LOCK_MONITOR_TIME);
}
} finally {
state.unlock();
}
}
private void unregisterLocking() {
state.lock();
try {
if(reentrantCount.decrementAndGet() == 0) {
if(timeoutSchedule != null) {
timeoutSchedule.cancel(false);
timeoutSchedule = null;
}
}
ThreadTracker.getInstance().accessThreadTracker(false, false, id, hashcode);
} finally {
state.unlock();
}
}
private void issueDeadlock(Thread t) {
deadlockedState = t.getStackTrace();
//super.unlock();
}
private static String printStackTrace(StackTraceElement[] list) {
String s = "";
for(int i = 0; i < list.length; i++) {
s += (" " + list[i].toString() + "\r\n");
}
return s;
}
@Override
public MonitoredWriteLock dispose() {
state.lock();
try {
if(timeoutSchedule != null) {
timeoutSchedule.cancel(false);
timeoutSchedule = null;
}
reentrantCount.set(Integer.MAX_VALUE);
} finally {
state.unlock();
}
//unlock();
return new EmptyWriteLock(id);
}
}

24
src/main/java/net/server/audit/locks/empty/AbstractEmptyLock.java Normal file
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package net.server.audit.locks.empty;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;
public abstract class AbstractEmptyLock {
protected static String printThreadStack(StackTraceElement[] list) {
DateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss"); // DRY-code opportunity performed by jtumidanski
dateFormat.setTimeZone(TimeZone.getDefault());
String df = dateFormat.format(new Date());
String s = "\r\n" + df + "\r\n";
for(int i = 0; i < list.length; i++) {
s += (" " + list[i].toString() + "\r\n");
}
s += "----------------------------\r\n\r\n";
return s;
}
}

55
src/main/java/net/server/audit/locks/empty/EmptyReadLock.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks.empty;
import net.server.audit.locks.MonitoredLockType;
import net.server.audit.locks.MonitoredReadLock;
import tools.FilePrinter;
/**
*
* @author RonanLana
*/
public class EmptyReadLock extends AbstractEmptyLock implements MonitoredReadLock {
private final MonitoredLockType id;
public EmptyReadLock(MonitoredLockType type) {
this.id = type;
}
@Override
public void lock() {
FilePrinter.printError(FilePrinter.DISPOSED_LOCKS, "Captured locking tentative on disposed lock " + id + ":" + printThreadStack(Thread.currentThread().getStackTrace()));
}
@Override
public void unlock() {}
@Override
public boolean tryLock() {
FilePrinter.printError(FilePrinter.DISPOSED_LOCKS, "Captured try-locking tentative on disposed lock " + id + ":" + printThreadStack(Thread.currentThread().getStackTrace()));
return false;
}
@Override
public MonitoredReadLock dispose() {
return this;
}
}

55
src/main/java/net/server/audit/locks/empty/EmptyReentrantLock.java Normal file
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/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks.empty;
import net.server.audit.locks.MonitoredLockType;
import net.server.audit.locks.MonitoredReentrantLock;
import tools.FilePrinter;
/**
*
* @author RonanLana
*/
public class EmptyReentrantLock extends AbstractEmptyLock implements MonitoredReentrantLock {
private final MonitoredLockType id;
public EmptyReentrantLock(MonitoredLockType type) {
this.id = type;
}
@Override
public void lock() {
FilePrinter.printError(FilePrinter.DISPOSED_LOCKS, "Captured locking tentative on disposed lock " + id + ":" + printThreadStack(Thread.currentThread().getStackTrace()));
}
@Override
public void unlock() {}
@Override
public boolean tryLock() {
FilePrinter.printError(FilePrinter.DISPOSED_LOCKS, "Captured try-locking tentative on disposed lock " + id + ":" + printThreadStack(Thread.currentThread().getStackTrace()));
return false;
}
@Override
public MonitoredReentrantLock dispose() {
return this;
}
}

55
src/main/java/net/server/audit/locks/empty/EmptyWriteLock.java Normal file
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@@ -0,0 +1,55 @@
/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks.empty;
import net.server.audit.locks.MonitoredLockType;
import net.server.audit.locks.MonitoredWriteLock;
import tools.FilePrinter;
/**
*
* @author RonanLana
*/
public class EmptyWriteLock extends AbstractEmptyLock implements MonitoredWriteLock {
private final MonitoredLockType id;
public EmptyWriteLock(MonitoredLockType type) {
this.id = type;
}
@Override
public void lock() {
FilePrinter.printError(FilePrinter.DISPOSED_LOCKS, "Captured locking tentative on disposed lock " + id + ":" + printThreadStack(Thread.currentThread().getStackTrace()));
}
@Override
public void unlock() {}
@Override
public boolean tryLock() {
FilePrinter.printError(FilePrinter.DISPOSED_LOCKS, "Captured try-locking tentative on disposed lock " + id + ":" + printThreadStack(Thread.currentThread().getStackTrace()));
return false;
}
@Override
public MonitoredWriteLock dispose() {
return this;
}
}

33
src/main/java/net/server/audit/locks/factory/MonitoredReadLockFactory.java Normal file
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@@ -0,0 +1,33 @@
/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks.factory;
import net.server.audit.locks.MonitoredReentrantReadWriteLock;
import net.server.audit.locks.active.TrackerReadLock;
/**
*
* @author RonanLana
*/
public class MonitoredReadLockFactory {
public static TrackerReadLock createLock(MonitoredReentrantReadWriteLock lock) {
return new TrackerReadLock(lock);
}
}

37
src/main/java/net/server/audit/locks/factory/MonitoredReentrantLockFactory.java Normal file
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@@ -0,0 +1,37 @@
/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks.factory;
import net.server.audit.locks.MonitoredLockType;
import net.server.audit.locks.active.TrackerReentrantLock;
/**
*
* @author RonanLana
*/
public class MonitoredReentrantLockFactory {
public static TrackerReentrantLock createLock(MonitoredLockType id) {
return new TrackerReentrantLock(id);
}
public static TrackerReentrantLock createLock(MonitoredLockType id, boolean fair) {
return new TrackerReentrantLock(id, fair);
}
}

33
src/main/java/net/server/audit/locks/factory/MonitoredWriteLockFactory.java Normal file
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@@ -0,0 +1,33 @@
/*
This file is part of the HeavenMS MapleStory Server
Copyleft (L) 2016 - 2019 RonanLana
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation version 3 as published by
the Free Software Foundation. You may not use, modify or distribute
this program under any other version of the GNU Affero General Public
License.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.server.audit.locks.factory;
import net.server.audit.locks.MonitoredReentrantReadWriteLock;
import net.server.audit.locks.active.TrackerWriteLock;
/**
*
* @author RonanLana
*/
public class MonitoredWriteLockFactory {
public static TrackerWriteLock createLock(MonitoredReentrantReadWriteLock lock) {
return new TrackerWriteLock(lock);
}
}