mirror of https://e.coding.net/circlecloud/Yum.git
88 lines
4.0 KiB
Java
88 lines
4.0 KiB
Java
package pw.yumc.Yum.runnables;
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import java.lang.Thread.State;
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import java.util.TimerTask;
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import org.bukkit.plugin.Plugin;
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import cn.citycraft.PluginHelper.kit.ServerKit;
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import pw.yumc.YumCore.bukkit.Log;
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import pw.yumc.YumCore.kit.PKit;
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/**
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* 线程安全检查任务
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*
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* @since 2016年6月22日 下午4:57:32
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* @author 喵♂呜
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*/
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public class MainThreadCheckTask extends TimerTask {
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private final String prefix = "§6[§bYum §a线程管理§6] ";
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private final String warnPNet = "§6插件 §b%s §c在主线程进行网络操作 §4服务器处于停止状态...";
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private final String warnPIO = "§6插件 §b%s §c在主线程进行IO操作 §4服务器处于停止状态...";
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private final String warnNet = "§c主线程存在网络操作 §4服务器处于停止状态...";
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private final String warnIO = "§c主线程存在IO操作 §4服务器处于停止状态...";
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private final String deliver = "§c服务器处于停止状态 已超过 %s 秒 激活心跳 防止线程关闭...";
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private int stopTime = 0;
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private final Thread mainThread;
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public MainThreadCheckTask(final Thread mainThread) {
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this.mainThread = mainThread;
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}
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@Override
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public void run() {
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// According to this post the thread is still in Runnable although it's waiting for
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// file/http ressources
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// https://stackoverflow.com/questions/20795295/why-jstack-out-says-thread-state-is-runnable-while-socketread
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if (mainThread.getState() == State.RUNNABLE) {
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// Based on this post we have to check the top element of the stack
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// https://stackoverflow.com/questions/20891386/how-to-detect-thread-being-blocked-by-io
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final StackTraceElement[] stackTrace = mainThread.getStackTrace();
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final StackTraceElement topElement = stackTrace[0];
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if (topElement.isNativeMethod()) {
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// Socket/SQL (connect) - java.net.DualStackPlainSocketImpl.connect0
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// Socket/SQL (read) - java.net.SocketInputStream.socketRead0
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// Socket/SQL (write) - java.net.SocketOutputStream.socketWrite0
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if (isElementEqual(topElement, "java.net.DualStackPlainSocketImpl", "connect0")
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|| isElementEqual(topElement, "java.net.SocketInputStream", "socketRead0")
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|| isElementEqual(topElement, "java.net.SocketOutputStream", "socketWrite0")) {
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final Plugin plugin = PKit.getOperatePlugin(stackTrace);
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if (plugin != null) {
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Log.console(prefix + warnPNet, plugin.getName());
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} else {
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Log.console(prefix + warnNet);
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}
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tick();
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}
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// File (in) - java.io.FileInputStream.readBytes
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// File (out) - java.io.FileOutputStream.writeBytes
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else if (isElementEqual(topElement, "java.io.FileInputStream", "readBytes") || isElementEqual(topElement, "java.io.FileOutputStream", "writeBytes")) {
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final Plugin plugin = PKit.getOperatePlugin(stackTrace);
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if (plugin != null) {
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Log.console(prefix + warnPIO, plugin.getName());
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} else {
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Log.console(prefix + warnIO);
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}
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tick();
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} else {
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stopTime = 0;
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}
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} else {
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stopTime = 0;
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}
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}
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}
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private boolean isElementEqual(final StackTraceElement traceElement, final String className, final String methodName) {
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return traceElement.getClassName().equals(className) && traceElement.getMethodName().equals(methodName);
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}
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private void tick() {
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stopTime += 5;
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if (stopTime >= 45) {
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Log.console(prefix + deliver, stopTime);
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ServerKit.tick();
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}
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}
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}
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