1/*
2 * Copyright (C) 2011 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_FILTERFW_FILTERPACKS_BASE_TIME_UTIL_H
18#define ANDROID_FILTERFW_FILTERPACKS_BASE_TIME_UTIL_H
19
20#include <string>
21#include <utils/RefBase.h>
22
23#define LOG_MFF_RUNNING_TIMES 0
24
25namespace android {
26namespace filterfw {
27
28uint64_t getTimeUs();
29
30class NamedStopWatch : public RefBase {
31  public:
32    static const uint64_t kDefaultLoggingPeriodInFrames;
33
34    explicit NamedStopWatch(const std::string& name);
35    void Start();
36    void Stop();
37
38    void SetName(const std::string& name) { mName = name; }
39    void SetLoggingPeriodInFrames(uint64_t numFrames) {
40        mLoggingPeriodInFrames = numFrames;
41    }
42
43    const std::string& Name() const { return mName; }
44    uint64_t NumCalls() const { return mNumCalls; }
45    uint64_t TotalUSec() const { return mTotalUSec; }
46
47  private:
48    std::string mName;
49    uint64_t mLoggingPeriodInFrames;
50    uint64_t mStartUSec;
51    uint64_t mNumCalls;
52    uint64_t mTotalUSec;
53};
54
55class ScopedTimer {
56  public:
57    explicit ScopedTimer(const std::string& stop_watch_name);
58    explicit ScopedTimer(NamedStopWatch* watch)
59        : mWatch(watch) { mWatch->Start(); }
60    ~ScopedTimer() { mWatch->Stop(); }
61
62  private:
63    NamedStopWatch* mWatch;
64};
65
66} // namespace filterfw
67} // namespace android
68
69#endif  // ANDROID_FILTERFW_FILTERPACKS_BASE_TIME_UTIL_H
70