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Issue 1817093005: Revert of Show max latency on client's status bar (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 9 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "remoting/base/running_samples.h"
6
7 #include <algorithm>
8
9 #include "base/logging.h"
10
11 namespace remoting {
12
13 RunningSamples::RunningSamples(int window_size)
14 : window_size_(window_size) {
15 DCHECK_GT(window_size, 0);
16 }
17
18 RunningSamples::~RunningSamples() {}
19
20 void RunningSamples::Record(int64_t value) {
21 DCHECK(thread_checker_.CalledOnValidThread());
22
23 data_points_.push_back(value);
24 sum_ += value;
25
26 if (data_points_.size() > window_size_) {
27 sum_ -= data_points_[0];
28 data_points_.pop_front();
29 }
30 }
31
32 double RunningSamples::Average() const {
33 DCHECK(thread_checker_.CalledOnValidThread());
34
35 if (data_points_.empty())
36 return 0;
37 return static_cast<double>(sum_) / data_points_.size();
38 }
39
40 int64_t RunningSamples::Max() const {
41 DCHECK(thread_checker_.CalledOnValidThread());
42
43 if (data_points_.empty())
44 return 0;
45
46 return *std::max_element(data_points_.begin(), data_points_.end());
47 }
48
49 } // namespace remoting
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