The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.webkit; |
| 18 | |
| 19 | import android.os.SystemClock; |
| 20 | import android.util.Log; |
| 21 | |
| 22 | class PerfChecker { |
| 23 | |
| 24 | private long mTime; |
| 25 | private static final long mResponseThreshold = 2000; // 2s |
| 26 | |
| 27 | public PerfChecker() { |
| 28 | if (false) { |
| 29 | mTime = SystemClock.uptimeMillis(); |
| 30 | } |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * @param what log string |
| 35 | * Logs given string if mResponseThreshold time passed between either |
| 36 | * instantiation or previous responseAlert call |
| 37 | */ |
| 38 | public void responseAlert(String what) { |
| 39 | if (false) { |
| 40 | long upTime = SystemClock.uptimeMillis(); |
| 41 | long time = upTime - mTime; |
| 42 | if (time > mResponseThreshold) { |
| 43 | Log.w("webkit", what + " used " + time + " ms"); |
| 44 | } |
| 45 | // Reset mTime, to permit reuse |
| 46 | mTime = upTime; |
| 47 | } |
| 48 | } |
| 49 | } |