co.aikar.timings.TimingsManager Maven / Gradle / Ivy
/*
* This file is licensed under the MIT License (MIT).
*
* Copyright (c) 2014 Daniel Ennis
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package co.aikar.timings;
import cn.nukkit.Server;
import java.util.*;
public class TimingsManager {
static final Map TIMING_MAP = Collections.synchronizedMap(new HashMap<>(256, 0.5f));
static final Queue TIMINGS = new ArrayDeque<>();
static final ArrayDeque MINUTE_REPORTS = new ArrayDeque<>();
static Queue HISTORY = new BoundedQueue<>(12);
static Timing CURRENT;
static long timingStart = 0;
static long historyStart = 0;
static boolean needsFullReset = false;
static boolean needsRecheckEnabled = false;
static void reset() {
needsFullReset = true;
}
/**
* Called every tick to count the number of times a timer caused TPS loss.
*/
static void tick() {
if (Timings.isTimingsEnabled()) {
boolean violated = Timings.fullServerTickTimer.isViolated();
synchronized (TIMINGS) {
for (Timing timing : TIMINGS) {
if (timing.isSpecial()) {
// Called manually
continue;
}
timing.tick(violated);
}
}
TimingsHistory.playerTicks += Server.getInstance().getOnlinePlayers().size();
TimingsHistory.timedTicks++;
}
}
static void recheckEnabled() {
synchronized (TIMING_MAP) {
TIMING_MAP.values().forEach(Timing::checkEnabled);
}
needsRecheckEnabled = false;
}
static void resetTimings() {
if (needsFullReset) {
// Full resets need to re-check every handlers enabled state
// Timing map can be modified from async so we must sync on it.
synchronized (TIMING_MAP) {
for (Timing timing : TIMING_MAP.values()) {
timing.reset(true);
}
}
HISTORY.clear();
needsFullReset = false;
needsRecheckEnabled = false;
timingStart = System.currentTimeMillis();
} else {
// Soft resets only need to act on timings that have done something
// Handlers can only be modified on main thread.
for (Timing timing : TIMINGS) {
timing.reset(false);
}
}
TIMINGS.clear();
MINUTE_REPORTS.clear();
TimingsHistory.resetTicks(true);
historyStart = System.currentTimeMillis();
}
public static Timing getTiming(String name) {
return getTiming(null, name, null);
}
static Timing getTiming(String group, String name, Timing groupTiming) {
TimingIdentifier id = new TimingIdentifier(group, name, groupTiming);
return TIMING_MAP.computeIfAbsent(id, k -> new Timing(id));
}
static final class BoundedQueue extends LinkedList {
final int maxSize;
BoundedQueue(int maxSize) {
if (maxSize <= 0) {
throw new IllegalArgumentException("maxSize must be greater than zero");
}
this.maxSize = maxSize;
}
@Override
public boolean add(E e) {
if (this.size() == maxSize) {
this.remove();
}
return super.add(e);
}
}
}
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