/Users/deen/code/yugabyte-db/src/yb/rocksdb/util/statistics.h
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1 | | // Copyright (c) 2011-present, Facebook, Inc. All rights reserved. |
2 | | // This source code is licensed under the BSD-style license found in the |
3 | | // LICENSE file in the root directory of this source tree. An additional grant |
4 | | // of patent rights can be found in the PATENTS file in the same directory. |
5 | | // |
6 | | // The following only applies to changes made to this file as part of YugaByte development. |
7 | | // |
8 | | // Portions Copyright (c) YugaByte, Inc. |
9 | | // |
10 | | // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
11 | | // in compliance with the License. You may obtain a copy of the License at |
12 | | // |
13 | | // http://www.apache.org/licenses/LICENSE-2.0 |
14 | | // |
15 | | // Unless required by applicable law or agreed to in writing, software distributed under the License |
16 | | // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
17 | | // or implied. See the License for the specific language governing permissions and limitations |
18 | | // under the License. |
19 | | // |
20 | | #ifndef YB_ROCKSDB_UTIL_STATISTICS_H |
21 | | #define YB_ROCKSDB_UTIL_STATISTICS_H |
22 | | |
23 | | #include <atomic> |
24 | | #include <mutex> |
25 | | #include <string> |
26 | | #include <vector> |
27 | | |
28 | | #include "yb/gutil/ref_counted.h" |
29 | | |
30 | | #include "yb/rocksdb/statistics.h" |
31 | | |
32 | | namespace yb { |
33 | | class MetricEntity; |
34 | | class Histogram; |
35 | | class HistogramPrototype; |
36 | | |
37 | | template <class T> |
38 | | class AtomicGauge; |
39 | | template <class T> |
40 | | class GaugePrototype; |
41 | | } // namespace yb |
42 | | |
43 | | namespace rocksdb { |
44 | | |
45 | | class StatisticsMetricPrototypes; |
46 | | |
47 | | class StatisticsMetricImpl : public Statistics { |
48 | | public: |
49 | | StatisticsMetricImpl( |
50 | | const scoped_refptr<yb::MetricEntity>& hist_entity, |
51 | | const scoped_refptr<yb::MetricEntity>& tick_entity, |
52 | | const bool for_intents); |
53 | | |
54 | | virtual ~StatisticsMetricImpl(); |
55 | | |
56 | | uint64_t getTickerCount(uint32_t ticker_type) const override; |
57 | | void histogramData(uint32_t histogram_type, HistogramData* const data) const override; |
58 | | |
59 | | void setTickerCount(uint32_t ticker_type, uint64_t count) override; |
60 | | void recordTick(uint32_t ticker_type, uint64_t count) override; |
61 | | void measureTime(uint32_t histogram_type, uint64_t value) override; |
62 | | void resetTickersForTest() override; |
63 | | |
64 | | const char* GetTickerName(uint32_t ticker_type) const override; |
65 | | |
66 | | private: |
67 | | std::vector<scoped_refptr<yb::Histogram>> histograms_; |
68 | | std::vector<scoped_refptr<yb::AtomicGauge<uint64_t>>> tickers_; |
69 | | }; |
70 | | |
71 | | // Utility functions |
72 | | inline void MeasureTime(Statistics* statistics, uint32_t histogram_type, |
73 | 35.9M | uint64_t value) { |
74 | 35.9M | if (statistics) { |
75 | 13.1M | statistics->measureTime(histogram_type, value); |
76 | 13.1M | } |
77 | 35.9M | } |
78 | | |
79 | | inline void RecordTick(Statistics* statistics, uint32_t ticker_type, |
80 | 3.99G | uint64_t count = 1) { |
81 | 3.99G | if (statistics) { |
82 | 3.87G | statistics->recordTick(ticker_type, count); |
83 | 3.87G | } |
84 | 3.99G | } |
85 | | |
86 | | inline void SetTickerCount(Statistics* statistics, uint32_t ticker_type, |
87 | 29.7M | uint64_t count) { |
88 | 29.7M | if (statistics) { |
89 | 14.4M | statistics->setTickerCount(ticker_type, count); |
90 | 14.4M | } |
91 | 29.7M | } |
92 | | |
93 | | } // namespace rocksdb |
94 | | |
95 | | #endif // YB_ROCKSDB_UTIL_STATISTICS_H |