Android线程初窥（二）

1.Runnable.class源码

2.Thread.class源码

Thread实现了Runnable接口；

public class Thread implements Runnable {
    private static final int NANOS_PER_MILLI = 1000000;

    /** Park states */
    private static class ParkState {
        /** park state indicating unparked */
        private static final int UNPARKED = 1;

        /** park state indicating preemptively unparked */
        private static final int PREEMPTIVELY_UNPARKED = 2;

        /** park state indicating parked */
        private static final int PARKED = 3;
    }
    ...

Thread调用start()函数;

    /** * Starts the new Thread of execution. The <code>run()</code> method of * the receiver will be called by the receiver Thread itself (and not the * Thread calling <code>start()</code>). * * @throws IllegalThreadStateException - if this thread has already started. * @see Thread#run */
    public synchronized void start() {
        checkNotStarted();

        hasBeenStarted = true;

        nativeCreate(this, stackSize, daemon);
    }