rt/emul/compact/src/main/java/java/util/Timer.java
changeset 1407 32e050a07754
parent 1405 f8f4cf9046fd
child 1945 a139403de819
     1.1 --- a/rt/emul/compact/src/main/java/java/util/Timer.java	Sat Nov 02 16:40:37 2013 +0100
     1.2 +++ b/rt/emul/compact/src/main/java/java/util/Timer.java	Sat Nov 02 21:09:52 2013 +0100
     1.3 @@ -26,6 +26,7 @@
     1.4  package java.util;
     1.5  import java.util.Date;
     1.6  import java.util.concurrent.atomic.AtomicInteger;
     1.7 +import org.apidesign.bck2brwsr.core.JavaScriptBody;
     1.8  
     1.9  /**
    1.10   * A facility for threads to schedule tasks for future execution in a
    1.11 @@ -111,7 +112,7 @@
    1.12          protected void finalize() throws Throwable {
    1.13              synchronized(queue) {
    1.14                  thread.newTasksMayBeScheduled = false;
    1.15 -                queue.notify(); // In case queue is empty.
    1.16 +                thread.notifyQueue(1); // In case queue is empty.
    1.17              }
    1.18          }
    1.19      };
    1.20 @@ -156,8 +157,6 @@
    1.21       * @since 1.5
    1.22       */
    1.23      public Timer(String name) {
    1.24 -        thread.setName(name);
    1.25 -        thread.start();
    1.26      }
    1.27  
    1.28      /**
    1.29 @@ -171,9 +170,6 @@
    1.30       * @since 1.5
    1.31       */
    1.32      public Timer(String name, boolean isDaemon) {
    1.33 -        thread.setName(name);
    1.34 -        thread.setDaemon(isDaemon);
    1.35 -        thread.start();
    1.36      }
    1.37  
    1.38      /**
    1.39 @@ -407,7 +403,7 @@
    1.40  
    1.41              queue.add(task);
    1.42              if (queue.getMin() == task)
    1.43 -                queue.notify();
    1.44 +                thread.notifyQueue(1);
    1.45          }
    1.46      }
    1.47  
    1.48 @@ -429,10 +425,10 @@
    1.49          synchronized(queue) {
    1.50              thread.newTasksMayBeScheduled = false;
    1.51              queue.clear();
    1.52 -            queue.notify();  // In case queue was already empty.
    1.53 +            thread.notifyQueue(1);  // In case queue was already empty.
    1.54          }
    1.55      }
    1.56 -
    1.57 +    
    1.58      /**
    1.59       * Removes all cancelled tasks from this timer's task queue.  <i>Calling
    1.60       * this method has no effect on the behavior of the timer</i>, but
    1.61 @@ -478,7 +474,7 @@
    1.62   * reschedules repeating tasks, and removes cancelled tasks and spent
    1.63   * non-repeating tasks from the queue.
    1.64   */
    1.65 -class TimerThread extends Thread {
    1.66 +class TimerThread implements Runnable {
    1.67      /**
    1.68       * This flag is set to false by the reaper to inform us that there
    1.69       * are no more live references to our Timer object.  Once this flag
    1.70 @@ -500,30 +496,41 @@
    1.71          this.queue = queue;
    1.72      }
    1.73  
    1.74 +    void notifyQueue(int delay) {
    1.75 +        if (delay < 1) {
    1.76 +            delay = 1;
    1.77 +        }
    1.78 +        setTimeout(delay, this);
    1.79 +    }
    1.80 +    
    1.81 +    @JavaScriptBody(args = { "delay", "r" }, body = "window.setTimeout(function() { r.run__V(); }, delay);")
    1.82 +    private static native void setTimeout(int delay, Runnable r);
    1.83 +    
    1.84      public void run() {
    1.85 -        try {
    1.86 -            mainLoop();
    1.87 -        } finally {
    1.88 -            // Someone killed this Thread, behave as if Timer cancelled
    1.89 -            synchronized(queue) {
    1.90 -                newTasksMayBeScheduled = false;
    1.91 -                queue.clear();  // Eliminate obsolete references
    1.92 -            }
    1.93 -        }
    1.94 +        mainLoop(1);
    1.95 +//        try {
    1.96 +//            mainLoop(0);
    1.97 +//        } finally {
    1.98 +//            // Someone killed this Thread, behave as if Timer cancelled
    1.99 +//            synchronized(queue) {
   1.100 +//                newTasksMayBeScheduled = false;
   1.101 +//                queue.clear();  // Eliminate obsolete references
   1.102 +//            }
   1.103 +//        }
   1.104      }
   1.105  
   1.106      /**
   1.107       * The main timer loop.  (See class comment.)
   1.108       */
   1.109 -    private void mainLoop() {
   1.110 -        while (true) {
   1.111 +    private void mainLoop(int inc) {
   1.112 +        for (int i = 0; i < 1; i += inc) {
   1.113              try {
   1.114                  TimerTask task;
   1.115                  boolean taskFired;
   1.116                  synchronized(queue) {
   1.117                      // Wait for queue to become non-empty
   1.118                      while (queue.isEmpty() && newTasksMayBeScheduled)
   1.119 -                        queue.wait();
   1.120 +                        break;
   1.121                      if (queue.isEmpty())
   1.122                          break; // Queue is empty and will forever remain; die
   1.123  
   1.124 @@ -548,12 +555,16 @@
   1.125                              }
   1.126                          }
   1.127                      }
   1.128 -                    if (!taskFired) // Task hasn't yet fired; wait
   1.129 -                        queue.wait(executionTime - currentTime);
   1.130 +                    if (!taskFired) {
   1.131 +                        // Task hasn't yet fired; wait
   1.132 +                        notifyQueue((int)(executionTime - currentTime));
   1.133 +                        return;
   1.134 +                    }
   1.135                  }
   1.136                  if (taskFired)  // Task fired; run it, holding no locks
   1.137                      task.run();
   1.138 -            } catch(InterruptedException e) {
   1.139 +            } catch(Exception e) {
   1.140 +                e.printStackTrace();
   1.141              }
   1.142          }
   1.143      }