blob: f0746d77b0a9ba0d56caf66943408e40cc31a8ee [file] [log] [blame]
// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "remoting/base/running_samples.h"
#include <algorithm>
#include "base/check_op.h"
namespace remoting {
RunningSamples::RunningSamples(int window_size)
: window_size_(window_size) {
DCHECK_GT(window_size, 0);
}
RunningSamples::~RunningSamples() {
DCHECK(thread_checker_.CalledOnValidThread());
}
void RunningSamples::Record(int64_t value) {
DCHECK(thread_checker_.CalledOnValidThread());
data_points_.push_back(value);
sum_ += value;
if (data_points_.size() > window_size_) {
sum_ -= data_points_.front();
data_points_.pop_front();
}
}
double RunningSamples::Average() const {
DCHECK(thread_checker_.CalledOnValidThread());
if (data_points_.empty())
return 0;
return static_cast<double>(sum_) / data_points_.size();
}
int64_t RunningSamples::Max() const {
DCHECK(thread_checker_.CalledOnValidThread());
if (data_points_.empty())
return 0;
return *std::max_element(data_points_.begin(), data_points_.end());
}
bool RunningSamples::IsEmpty() const {
return data_points_.empty();
}
} // namespace remoting