1 /*
2  * Copyright (C) 2013 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 #ifndef ANDROID_HWUI_TIMING_H
18 #define ANDROID_HWUI_TIMING_H
19 
20 #include <sys/time.h>
21 
22 #define TIME_METHOD() MethodTimer __method_timer(__func__)
23 class MethodTimer {
24 public:
MethodTimer(const char * name)25     MethodTimer(const char* name)
26             : mMethodName(name) {
27         gettimeofday(&mStart, nullptr);
28     }
29 
~MethodTimer()30     ~MethodTimer() {
31         struct timeval stop;
32         gettimeofday(&stop, nullptr);
33         long long elapsed = (stop.tv_sec * 1000000) - (mStart.tv_sec * 1000000)
34                 + (stop.tv_usec - mStart.tv_usec);
35         ALOGD("%s took %.2fms", mMethodName, elapsed / 1000.0);
36     }
37 private:
38     const char* mMethodName;
39     struct timeval mStart;
40 };
41 
42 #endif
43