Add the code to detect how long the WebViewCore thread is idle in the real time. (f099481c) · Commits · e / os / android_frameworks_base

core/java/android/webkit/CallbackProxy.java

+41 −3

Original line number	Diff line number	Diff line
		@@ -641,7 +641,40 @@ class CallbackProxy extends Handler {
		//--------------------------------------------------------------------------

		// Performance probe
		private static final boolean PERF_PROBE = false;
		private long mWebCoreThreadTime;
		private long mWebCoreIdleTime;

		/*
		* If PERF_PROBE is true, this block needs to be added to MessageQueue.java.
		* startWait() and finishWait() should be called before and after wait().

		private WaitCallback mWaitCallback = null;
		public static interface WaitCallback {
		void startWait();
		void finishWait();
		}
		public final void setWaitCallback(WaitCallback callback) {
		mWaitCallback = callback;
		}
		*/

		// un-comment this block if PERF_PROBE is true
		/*
		private IdleCallback mIdleCallback = new IdleCallback();

		private final class IdleCallback implements MessageQueue.WaitCallback {
		private long mStartTime = 0;

		public void finishWait() {
		mWebCoreIdleTime += SystemClock.uptimeMillis() - mStartTime;
		}

		public void startWait() {
		mStartTime = SystemClock.uptimeMillis();
		}
		}
		*/

		public void onPageStarted(String url, Bitmap favicon) {
		// Do an unsynchronized quick check to avoid posting if no callback has
		@@ -650,9 +683,12 @@ class CallbackProxy extends Handler {
		return;
		}
		// Performance probe
		if (false) {
		if (PERF_PROBE) {
		mWebCoreThreadTime = SystemClock.currentThreadTimeMillis();
		mWebCoreIdleTime = 0;
		Network.getInstance(mContext).startTiming();
		// un-comment this if PERF_PROBE is true
		// Looper.myQueue().setWaitCallback(mIdleCallback);
		}
		Message msg = obtainMessage(PAGE_STARTED);
		msg.obj = favicon;
		@@ -667,10 +703,12 @@ class CallbackProxy extends Handler {
		return;
		}
		// Performance probe
		if (false) {
		if (PERF_PROBE) {
		// un-comment this if PERF_PROBE is true
		// Looper.myQueue().setWaitCallback(null);
		Log.d("WebCore", "WebCore thread used " +
		(SystemClock.currentThreadTimeMillis() - mWebCoreThreadTime)
		+ " ms");
		+ " ms and idled " + mWebCoreIdleTime + " ms");
		Network.getInstance(mContext).stopTiming();
		}
		Message msg = obtainMessage(PAGE_FINISHED, url);