看過我之前文章的園友可能知道我是做游戲開發(fā)，我的很多思路和出發(fā)點是按照游戲思路來處理的，所以和web的話可能會有沖突，不相符合。
來說說為啥我要自定義線程模型呢？
按照我做的mmorpg或者mmoarpg游戲劃分，線程被劃分為，主線程，全局同步線程，聊天線程，組隊線程，地圖線程，以及地圖消息分發(fā)派送線程等；
一些列，都需要根據(jù)我的劃分，以及數(shù)據(jù)流向做控制。
游戲服務(wù)器，主要要做的事情，肯定是接受玩家的 命令請求 -> 相應(yīng)的操作 -> 返回結(jié)果；
在服務(wù)器端所有的消息都會注冊到消息管理器里，然后消息在注冊的時候會指定線程模型，
如果消息需要提交到玩家所在地圖線程進(jìn)行處理的話注冊消息的時候就要把線程模型用（地圖消息分發(fā)派送線程）；
下面我們先來分析線程模型；
在看線程模型代碼之前我先看看我的任務(wù)模型
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package net.sz.engine.thread;import java.io.Serializable;import org.apache.log4j.Logger;import net.sz.engine.structs.ObjectAttribute;import net.sz.engine.structs.ObjectGlobal;/** * 任務(wù)模型 * * <br> * author 失足程序員<br> * mail [email protected]<br> * phone 13882122019<br> */public abstract class TaskEvent implements Serializable, Cloneable { private static final Logger log = Logger.getLogger(TaskEvent.class); private static final long serialVersionUID = 4196020659994845804L; //運行時數(shù)據(jù) private transient final ObjectAttribute runOther = new ObjectAttribute; //任務(wù)創(chuàng)建的時間 protected long createTime; //任務(wù)的唯一id protected long taskId; //取消的任務(wù) protected boolean cancel = false; public TaskEvent { this.runOther.put("submitTime", System.currentTimeMillis); createTime = System.currentTimeMillis; cancel = false; taskId = ObjectGlobal.getUUID; } public long getCreateTime { return createTime; } public void setCreateTime(long createTime) { this.createTime = createTime; } public long getSubmitTime { return this.runOther.getlongValue("submitTime"); } public ObjectAttribute getRunOther { return runOther; } public boolean isCancel { return cancel; } public void setCancel(boolean cancel) { this.cancel = cancel; } public abstract void run; @Override public Object clone throws CloneNotSupportedException { return super.clone; //To change body of generated methods, choose Tools | Templates. }} |
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package net.sz.engine.thread;/** * 定時器執(zhí)行器 * * <br> * author 失足程序員<br> * mail [email protected]<br> * phone 13882122019<br> */public abstract class TimerTaskEvent extends TaskEvent { private static final long serialVersionUID = -8331296295264699207L; /** * 開始執(zhí)行的時間 */ protected long startTime; /** * 是否一開始執(zhí)行一次 */ protected boolean startAction; /** * 結(jié)束時間 */ protected long endTime; /** * 執(zhí)行次數(shù) */ protected int actionCount; /** * 間隔執(zhí)行時間 */ protected int intervalTime; /** * * @param startTime 指定開始時間 * @param isStartAction 是否一開始就執(zhí)行一次 * @param endTime 指定結(jié)束時間 * @param actionCount 指定執(zhí)行次數(shù) * @param intervalTime 指定間隔時間 */ public TimerTaskEvent(long startTime, boolean isStartAction, long endTime, int actionCount, int intervalTime) { super; this.startTime = startTime; this.startAction = isStartAction; this.endTime = endTime; this.actionCount = actionCount; this.intervalTime = intervalTime; } /** * 指定任務(wù)的開始執(zhí)行時間 * * @param startTime 指定開始時間 * @param isStartAction 是否一開始就執(zhí)行一次 * @param actionCount 指定執(zhí)行次數(shù) * @param intervalTime 指定間隔時間 */ public TimerTaskEvent(long startTime, boolean isStartAction, int actionCount, int intervalTime) { this(startTime, isStartAction, 0, actionCount, intervalTime); } /** * 指定結(jié)束時間已結(jié)束時間為準(zhǔn)，執(zhí)行次數(shù)不一定夠 * * @param isStartAction 是否一開始就執(zhí)行一次 * @param endTime 指定結(jié)束時間 * @param actionCount 指定執(zhí)行次數(shù) * @param intervalTime 指定間隔時間 * */ public TimerTaskEvent(boolean isStartAction, long endTime, int actionCount, int intervalTime) { this(0, isStartAction, endTime, actionCount, intervalTime); } /** * 指定開始時間，和結(jié)束時間 * * @param startTime 指定開始時間 * @param endTime 指定結(jié)束時間 * @param intervalTime 指定間隔時間 */ public TimerTaskEvent(long startTime, long endTime, int intervalTime) { this(startTime, false, endTime, -1, intervalTime); } /** * 指定的執(zhí)行次數(shù)和間隔時間 * * @param actionCount 指定執(zhí)行次數(shù) * @param intervalTime 指定間隔時間 */ public TimerTaskEvent(int actionCount, int intervalTime) { this(0, false, 0, actionCount, intervalTime); } /** * 提交后指定的時間無限制執(zhí)行 * * @param intervalTime 指定間隔時間 */ public TimerTaskEvent(int intervalTime) { this(0, false, 0, -1, intervalTime); } public long getStartTime { return startTime; } public void setStartTime(long startTime) { this.startTime = startTime; } public boolean isStartAction { return startAction; } public void setStartAction(boolean startAction) { this.startAction = startAction; } public long getEndTime { return endTime; } public void setEndTime(long endTime) { this.endTime = endTime; } public int getActionCount { return actionCount; } public void setActionCount(int actionCount) { this.actionCount = actionCount; } public int getIntervalTime { return intervalTime; } public void setIntervalTime(int intervalTime) { this.intervalTime = intervalTime; }} |
這里是任務(wù)模型和定時器任務(wù)模型；
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package net.sz.engine.thread;import java.util.ArrayList;import java.util.List;import java.util.concurrent.ConcurrentLinkedQueue;import net.sz.engine.structs.ObjectGlobal;import net.sz.engine.utils.MailUtil;import net.sz.engine.utils.StringUtil;import org.apache.log4j.Logger;import org.jboss.jandex.Main;/** * 線程模型 * <br> * author 失足程序員<br> * mail [email protected]<br> * phone 13882122019<br> */public class ThreadModel implements Runnable { private static final Logger log = Logger.getLogger(ThreadModel.class); private static long threadID = 0; protected static final Object SYN_OBJECT = new Object; protected long tid; protected String name; protected long lastSendMail = 0; protected final ArrayList<MyThread> threads = new ArrayList<>; /** * 任務(wù)列表 線程安全的任務(wù)列表 */ //protected final List<TaskModel> taskQueue = new ArrayList<>; protected final ConcurrentLinkedQueue<TaskEvent> taskQueue = new ConcurrentLinkedQueue<>; /** * */ protected final List<TimerTaskEvent> timerQueue = new ArrayList<>; // false標(biāo)識刪除線程 protected volatile boolean runing = true; public ThreadModel(ThreadGroup group) { this(group, "無名", 1); } public ThreadModel(String name) { this(ThreadPool.UnknownThreadGroup, name, 1); } public ThreadModel(ThreadGroup group, String name, int threadCount) { this(group, name, threadCount, null); } public ThreadModel(ThreadGroup group, String name, int threadCount, Runnable runnable) { synchronized (SYN_OBJECT) {threadID++;tid = threadID; } for (int i = 1; i <= threadCount; i++) { MyThread thread;if (runnable == null) {thread = new MyThread(tid, group, this, name + "-" + tid + "-" + i);} else {thread = new MyThread(tid, group, runnable, name + "-" + tid + "-" + i); } thread.start; threads.add(thread); } this.name = name; } /** * 線程名字 * * @return */ public String getName { return name; } /** * 獲取線程的自定義id * * @return */ public long getId { return this.tid; } /** * 增加新的任務(wù) 每增加一個新任務(wù)，都要喚醒任務(wù)隊列 * * @param runnable */ public void addTask(TaskEvent runnable) { taskQueue.add(runnable); synchronized (taskQueue) {/* 喚醒隊列, 開始執(zhí)行 */ taskQueue.notifyAll; } } /** * 向線程添加定時器任務(wù) * * @param runnable */ public void addTimer(TimerTaskEvent runnable) { synchronized (timerQueue) {if (runing) {//一開始執(zhí)行一次if (runnable.startAction) { addTask(runnable); } timerQueue.add(runnable);} else {log.error("線程已經(jīng)停止"); } } } // <editor-fold defaultstate="collapsed" desc="定時器線程執(zhí)行器 public void timerRun"> /** * 定時器線程執(zhí)行器 */ public void timerRun { ArrayList<TimerTaskEvent> taskModels; synchronized (timerQueue) {// 隊列不為空的情況下 取出隊列定時器任務(wù)taskModels = new ArrayList<>(timerQueue); } if (!taskModels.isEmpty) {for (TimerTaskEvent timerEvent : taskModels) {int execCount = timerEvent.getRunOther.getintValue("Execcount");long lastTime = timerEvent.getRunOther.getlongValue("LastExecTime");long nowTime = System.currentTimeMillis;if (lastTime == 0) {timerEvent.getRunOther.put("LastExecTime", nowTime);} else if (timerEvent.isCancel) {//如果任務(wù)已經(jīng)取消synchronized (timerQueue) { timerQueue.remove(timerEvent); }log.debug("清理定時器任務(wù)：" + timerEvent.getClass.getName);} else if (nowTime > timerEvent.getStartTime // 是否滿足開始時間&& (nowTime - timerEvent.getSubmitTime > timerEvent.getIntervalTime)// 提交以后是否滿足了間隔時間&& (timerEvent.getEndTime <= 0 || nowTime < timerEvent.getEndTime) // 判斷結(jié)束時間&& (nowTime - lastTime >= timerEvent.getIntervalTime)) // 判斷上次執(zhí)行到目前是否滿足間隔時間 {// 提交執(zhí)行定時器最先執(zhí)行this.addTask(timerEvent);// 記錄execCount++;timerEvent.getRunOther.put("Execcount", execCount);timerEvent.getRunOther.put("LastExecTime", nowTime);nowTime = System.currentTimeMillis;// 判斷刪除條件if ((timerEvent.getEndTime > 0 && nowTime < timerEvent.getEndTime)|| (timerEvent.getActionCount > 0 && timerEvent.getActionCount <= execCount)) {synchronized (timerQueue) { timerQueue.remove(timerEvent); }log.debug("清理定時器任務(wù)：" + timerEvent.getClass.getName); } } } } } // </editor-fold> // <editor-fold defaultstate="collapsed" desc="查看線程堆棧 public void showStackTrace"> /** * * 查看線程堆棧 */ public void showStackTrace { StringBuilder buf = new StringBuilder; for (MyThread currentThread : threads) {long procc = System.currentTimeMillis - currentThread.getLastExecuteTime;if (procc > 5 * 1000 && procc < 864000000L) {//小于10天//因為多線程操作時間可能不準(zhǔn)確buf.append("線程[") .append(currentThread.getName).append("]可能已卡死 -> ").append(procc / 1000f).append("s\n ").append("執(zhí)行任務(wù)：") .append(currentThread.getLastCommand.getClass.getName);try {StackTraceElement elements = currentThread.getStackTrace;for (int i = 0; i < elements.length; i++) {buf.append("\n ") .append(elements[i].getClassName).append(".") .append(elements[i].getMethodName).append("(").append(elements[i].getFileName).append(";").append(elements[i].getLineNumber).append(")"); }} catch (Exception e) { buf.append(e); }buf.append("\n++++++++++++++++++++++++++++++++++"); } } String toString = buf.toString; if (!StringUtil.isNullOrEmpty(toString)) { log.error(toString);if (System.currentTimeMillis - lastSendMail > 5 * 60 * 1000) {lastSendMail = System.currentTimeMillis;MailUtil.sendMail("線程執(zhí)行已卡死 -> 游戲id-" + ObjectGlobal.GameID + " 平臺-" + ObjectGlobal.Platform + " 服務(wù)器id-" + ObjectGlobal.ServerID, toString); } } } // </editor-fold> @Override public void run { MyThread currentThread = (MyThread) Thread.currentThread; while (runing) {while (taskQueue.isEmpty && runing) {try {/* 任務(wù)隊列為空，則等待有新任務(wù)加入從而被喚醒 */synchronized (taskQueue) {taskQueue.wait(500); }} catch (InterruptedException ie) { log.error(ie); } }/* 取出任務(wù)執(zhí)行 */if (runing) {currentThread.lastCommand = null;currentThread.lastCommand = taskQueue.poll; }if (currentThread.lastCommand != null) {if (currentThread.lastCommand.isCancel) {//如果任務(wù)已經(jīng)取消continue; }/* 執(zhí)行任務(wù) */// r.setSubmitTimeL;currentThread.lastExecuteTime = System.currentTimeMillis;try { currentThread.lastCommand.run;} catch (Exception e) {log.error("工人<“" + currentThread.getName + "”> 執(zhí)行任務(wù)<" + currentThread.lastCommand.getClass.getName + "> 遇到錯誤: ", e); }long timeL1 = System.currentTimeMillis - currentThread.lastExecuteTime;if (timeL1 <= 20) {} else if (timeL1 <= 100L) {log.info("工人<“" + currentThread.getName + "”> 完成了任務(wù)：" + currentThread.lastCommand.toString + " 執(zhí)行耗時：" + timeL1);} else if (timeL1 <= 200L) {log.info("工人<“" + currentThread.getName + "”> 長時間執(zhí)行 完成任務(wù)：" + currentThread.lastCommand.toString + " “考慮”任務(wù)腳本邏輯 耗時：" + timeL1);} else {log.info("工人<“" + currentThread.getName + "”> 超長時間執(zhí)行完成 任務(wù)：" + currentThread.lastCommand.toString + " “考慮是否應(yīng)該刪除”任務(wù)腳本 耗時：" + timeL1); }currentThread.lastExecuteTime = 0; } } log.error("線程結(jié)束, 工人<“" + Thread.currentThread.getName + "”>退出"); } /** * 自定義線程 */ public class MyThread extends Thread { /** * * @param tid 自定義線程id * @param group 分組 * @param run 執(zhí)行方法 * @param name 線程名稱*/ public MyThread(long tid, ThreadGroup group, Runnable run, String name) {super(group, run, name);this._id = tid; } //線程的自定義id public long _id; //正在執(zhí)行的任務(wù) public volatile TaskEvent lastCommand; //開始執(zhí)行任務(wù)的時間 public volatile long lastExecuteTime = 0; public TaskEvent getLastCommand {return lastCommand; } public long getLastExecuteTime {return lastExecuteTime; } /** * 返回線程自定義id * * @return*/ @Override public long getId {return _id; } } /** * 停止線程，設(shè)置線程的停止?fàn)顟B(tài)，并不會馬上終止線程 */ public void stop { this.runing = false; } public boolean isRuning { return runing; } @Override public String toString { return "Thread{" + "tid=" + tid + ",Name=" + this.getName + '}'; }} |
我從 ThreadModel 構(gòu)造函數(shù)的
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public ThreadModel(ThreadGroup group, String name, int threadCount, Runnable runnable) { synchronized (SYN_OBJECT) {threadID++;tid = threadID; } for (int i = 1; i <= threadCount; i++) { MyThread thread;if (runnable == null) {thread = new MyThread(tid, group, this, name + "-" + tid + "-" + i);} else {thread = new MyThread(tid, group, runnable, name + "-" + tid + "-" + i); } thread.start; threads.add(thread); } this.name = name; } |
可以看出，這里我運行聲明一個或者多個 MyThread 線程類
為什么要這樣考慮呢打個比方，如果是處理日志的寫入數(shù)據(jù)這種，沒有共享數(shù)據(jù)，沒有線程臨界區(qū)的處理流程，我可以考慮使用N個線程去處理這樣的工作；不會產(chǎn)生臟數(shù)據(jù)；
如果是想組隊請求，技能施法這種處理，我需要單隊列處理，那么threadmodel里面肯定只有一個MyThread 這樣不算阻塞模式串行執(zhí)行（或隊列執(zhí)行）把共享數(shù)據(jù)和線程臨界區(qū)的問題也解決了不再依賴鎖；
字很丑，請見諒
上面圖片看出，在每一個threadmodel 里面都會兩個隊列，一個timertaskevent，一個是taskevent，會存在一個全局的timer thread；
全局的 timer thread 的作用是用來定時去處理和發(fā)現(xiàn) threadmodel里面timertaskevent需要執(zhí)行了，就把他加入到taskevent隊里里面；最終執(zhí)行是taskevent隊列
timertaskevent為什么要存儲在對應(yīng)的threadmodel里面呢，那是因為比如，我A線程（threadmodel實例）運行一段時間后需要關(guān)閉，釋放資源了，那么我還要去其他地方查找對應(yīng)的timertask并移除掉；
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package net.sz.engine.thread;import java.util.HashMap;import java.util.Map;/** * * <br> * author 失足程序員<br> * mail [email protected]<br> * phone 13882122019<br> */class TimerThread extends Thread { private static final Object SYN_OBJECT = new Object; public TimerThread { super(ThreadPool.GloblThreadGroup, "Global Timer Thread"); } @Override public void run { while (true) {synchronized (SYN_OBJECT) {try {SYN_OBJECT.wait(2);} catch (InterruptedException ex) { } }HashMap<Long, ThreadModel> hashMap = new HashMap<>(ThreadPool.getThreadMap);for (Map.Entry<Long, ThreadModel> entrySet : hashMap.entrySet) {Long key = entrySet.getKey;ThreadModel value = entrySet.getValue; value.timerRun; } } }} |
線程模型的管理器
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package net.sz.engine.thread;import java.util.HashMap;import java.util.concurrent.ConcurrentHashMap;import net.sz.engine.script.manager.ScriptManager;import net.sz.engine.timer.GlobTimerEvent;import net.sz.engine.timer.PrintlnServerMemoryTimerEvent;import org.apache.log4j.Logger;/** * 線程管理器 * * <br> * author 失足程序員<br> * mail [email protected]<br> * phone 13882122019<br> */public class ThreadPool { static private final Logger log = Logger.getLogger(ThreadPool.class); static public final long GloblThread; static private final TimerThread GloblTimerThread; static final long CheckThreadTimerThreadModel; static public final ThreadGroup GloblThreadGroup = new ThreadGroup("Global ThreadGroup"); static public final ThreadGroup UnknownThreadGroup = new ThreadGroup(GloblThreadGroup, "Unknown ThreadGroup"); static private final ConcurrentHashMap<Long, ThreadModel> threadMap = new ConcurrentHashMap<>; public static void main(String[] args) { ThreadPool.addTimerTask(GloblThread, new TimerTaskEvent(1000) { @Overridepublic void run {log.error("ssssss"); } }); } static { //創(chuàng)建全局線程 GloblThread = addThreadModel(GloblThreadGroup, "GloblThread"); //執(zhí)行指定任務(wù)定時觸發(fā)腳步 addTimerTask(GloblThread, new GlobTimerEvent(ScriptManager.getInstance.getBaseScriptEntry)); //查詢服務(wù)器消耗定時模型 addTimerTask(GloblThread, new PrintlnServerMemoryTimerEvent); //創(chuàng)建定時器線程 GloblTimerThread = new TimerThread; GloblTimerThread.start; //檢查線程卡死情況 CheckThreadTimerThreadModel = addThreadModel(GloblThreadGroup, "Check Thread Timer Event"); addTimerTask(CheckThreadTimerThreadModel, new CheckThreadTimerEvent); } /** * 刪除指定id線程模型的時候回設(shè)置狀態(tài)為停止?fàn)顟B(tài) * * @param tid * @return */ static public ThreadModel remove(long tid) { ThreadModel remove = threadMap.remove(tid); if (remove != null) { remove.stop; } return remove; } /** * 獲取線程池中所有線程 * * @return */ static public ConcurrentHashMap<Long, ThreadModel> getThreadMap { return threadMap; } /** * 獲取線程池的一個線程 * * @param threadId * @return */ static public ThreadModel getThreadModel(long threadId) { ThreadModel get = threadMap.get(threadId); if (get == null) {log.error("無法找到線程模型：" + threadId, new Exception("無法找到線程模型：" + threadId)); } return get; } /** * 向線程池注冊一個線程 * <br> * 默認(rèn)分組 UnknownThreadGroup * * @param name 線程名稱 * @return */ static public long addThreadModel(String name) { return addThreadModel(UnknownThreadGroup, name); } /** * 向線程池注冊一個線程 * <br> * 默認(rèn)分組 UnknownThreadGroup * * @param name 線程名稱 * @param threadcount 線程量 * @return */ static public long addThreadModel(String name, int threadcount) { return addThreadModel(UnknownThreadGroup, name, threadcount); } /** * 向線程池注冊一個線程 * * @param group 線程分組信息 * @param name 線程名稱 * @return */ static public long addThreadModel(ThreadGroup group, String name) { return addThreadModel(group, name, 1); } /** * 向線程池注冊一個線程 * * @param group 線程分組信息 * @param name 線程名稱 * @param threadcount 線程量 * @return */ static public long addThreadModel(ThreadGroup group, String name, int threadcount) { return addThreadModel(group, name, null, threadcount); } /** * 向線程池注冊一個線程 * * @param group 線程分組信息 * @param name 線程名稱 * @param runnable * @param threadcount 線程量 * @return */ static public long addThreadModel(ThreadGroup group, String name, Runnable runnable, int threadcount) { ThreadModel threadModel = new ThreadModel(group, name, threadcount, runnable); return addThreadModel(threadModel); } /** * 向線程池注冊一個線程 * * @param threadModel */ static public long addThreadModel(ThreadModel threadModel) { threadMap.put(threadModel.getId, threadModel); return threadModel.getId; } /** * 添加任務(wù) * * @param threadId * @param task * @return */ static public boolean addTask(long threadId, TaskEvent task) { ThreadModel threadModel = getThreadModel(threadId); if (threadModel != null) { threadModel.addTask(task);return true; } return false; } /** * 添加定時器任務(wù) * * @param threadId * @param task * @return */ static public boolean addTimerTask(long threadId, TimerTaskEvent task) { ThreadModel threadModel = getThreadModel(threadId); if (threadModel != null) { threadModel.addTimer(task);return true; } return false; } /** * 添加任務(wù),添加任務(wù)到當(dāng)前線程 * * @param task * @return */ static public boolean addCurrentThreadTask(TaskEvent task) { Thread currentThread = Thread.currentThread; if (currentThread instanceof ThreadModel.MyThread) {long threadId = currentThread.getId;ThreadModel threadModel = getThreadModel(threadId);if (threadModel != null) { threadModel.addTask(task);return true; } } return false; } /** * 添加定時器任務(wù)，添加任務(wù)到當(dāng)前線程 * * @param task * @return */ static public boolean addCurrentThreadTimerTask(TimerTaskEvent task) { Thread currentThread = Thread.currentThread; if (currentThread instanceof ThreadModel.MyThread) {long threadId = currentThread.getId;ThreadModel threadModel = getThreadModel(threadId);if (threadModel != null) { threadModel.addTimer(task);return true; } } return false; }} |
接下來我們看看使用情況
上篇文章中線程介紹代碼
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public static void main(String[] args) throws InterruptedException { //線程并行情況，有多個線程執(zhí)行多個任務(wù)/函數(shù) new Thread(new Run1).start; new Thread(new Run2).start; } //任務(wù)1 static class Run1 implements Runnable { @Override public void run {//執(zhí)行任務(wù)1 run1;//執(zhí)行任務(wù)3 run3; } } //任務(wù)2 static class Run2 implements Runnable { @Override public void run {//執(zhí)行任務(wù)3 run3;//執(zhí)行任務(wù)1 run1;//執(zhí)行任務(wù)2 run2; } } //任務(wù)1 public static void run1 { System.out.println("run1->" + System.currentTimeMillis); } //任務(wù)2 public static void run2 { System.out.println("run2->" + System.currentTimeMillis); } //任務(wù)3 public static void run3 { System.out.println("run3->" + System.currentTimeMillis); } |
我把代碼切換模式
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public static void main(String[] args) throws InterruptedException { //線程并行情況，有多個線程執(zhí)行多個任務(wù)/函數(shù) long test1 = ThreadPool.addThreadModel("測試線程-1"); long test2 = ThreadPool.addThreadModel("測試線程-2"); //添加任務(wù) ThreadPool.addTask(test1, new Run1); ThreadPool.addTask(test2, new Run2); //添加定時器任務(wù) ThreadPool.addTimerTask(test1, new TimerRun1); ThreadPool.addTimerTask(test2, new TimerRun2); } //任務(wù)1 static class Run1 extends TaskEvent { @Override public void run {//執(zhí)行任務(wù)1 run1;//執(zhí)行任務(wù)3 run3; } } //任務(wù)1 static class TimerRun1 extends TimerTaskEvent { public TimerRun1 {super(500);//500毫秒無限制執(zhí)行 } @Override public void run {//執(zhí)行任務(wù)1 run1;//執(zhí)行任務(wù)3 run3; } } //任務(wù)2 static class Run2 extends TaskEvent { @Override public void run {//執(zhí)行任務(wù)3 run3;//執(zhí)行任務(wù)1 run1;//執(zhí)行任務(wù)2 run2; } } //任務(wù)2 static class TimerRun2 extends TimerTaskEvent { public TimerRun2 {super(500);//500毫秒無限制執(zhí)行 } @Override public void run {//執(zhí)行任務(wù)3 run3;//執(zhí)行任務(wù)1 run1;//執(zhí)行任務(wù)2 run2; } } //任務(wù)1 public static void run1 { System.out.println("run1->" + System.currentTimeMillis); } //任務(wù)2 public static void run2 { System.out.println("run2->" + System.currentTimeMillis); } //任務(wù)3 public static void run3 { System.out.println("run3->" + System.currentTimeMillis); } |
接下來我們看看執(zhí)行效果
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run1->1472120543013run3->1472120543013run3->1472120543017run1->1472120543017run2->1472120543017run1->1472120543517run3->1472120543517run2->1472120543517run1->1472120544018run3->1472120544018run2->1472120544018run1->1472120544520run3->1472120544520run2->1472120544520run1->1472120545021run3->1472120545021run2->1472120545021run1->1472120545521run3->1472120545521 |
一切正常；
這就是我的自定義線程模型；
到這里我的自定義線程模型就算介紹完成了；
那么優(yōu)缺點在哪里呢？
優(yōu)點是，數(shù)據(jù)流程控制很清晰，包括現(xiàn)在執(zhí)行情況，以及線程卡死監(jiān)控和任務(wù) 的定時器執(zhí)行；
缺點，這個自定義線程模型依然不可能解決線程數(shù)據(jù)安全和臨界區(qū)問題，在適當(dāng)?shù)臅r候依然需要靠鎖或者其他形式來解決；
不足之處希望大神們指出，我好即時糾正。
