auto import from //depot/cupcake/@135843

1 files changed, 49 insertions, 0 deletions

diff --git a/core/java/android/webkit/PerfChecker.java b/core/java/android/webkit/PerfChecker.java
new file mode 100644
index 0000000..8c5f86e
--- /dev/null
+++ b/core/java/android/webkit/PerfChecker.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.webkit;
+
+import android.os.SystemClock;
+import android.util.Log;
+
+class PerfChecker {
+
+    private long mTime;
+    private static final long mResponseThreshold = 2000;    // 2s
+
+    public PerfChecker() {
+        if (false) {
+            mTime = SystemClock.uptimeMillis();
+        }
+    }
+
+    /**
+     * @param what log string
+     * Logs given string if mResponseThreshold time passed between either
+     * instantiation or previous responseAlert call
+     */
+    public void responseAlert(String what) {
+        if (false) {
+            long upTime = SystemClock.uptimeMillis();
+            long time =  upTime - mTime;
+            if (time > mResponseThreshold) {
+                Log.w("webkit", what + " used " + time + " ms");
+            }
+            // Reset mTime, to permit reuse
+            mTime = upTime;
+        }
+    }
+}