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// Copyright 2014 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/test/leaky_bucket.h"
#include "base/logging.h"
namespace remoting {
LeakyBucket::LeakyBucket(double depth, double rate)
: depth_(depth),
rate_(rate),
level_(0.0),
last_update_(base::TimeTicks::Now()) {
}
LeakyBucket::~LeakyBucket() {
}
base::TimeDelta LeakyBucket::AddPacket(int size) {
UpdateLevel();
double new_level = level_ + size;
if (new_level > depth_)
return base::TimeDelta::Max();
base::TimeDelta result = base::TimeDelta::FromSecondsD(level_ / rate_);
level_ = new_level;
return result;
}
void LeakyBucket::UpdateLevel() {
base::TimeTicks now = base::TimeTicks::Now();
level_ -= rate_ * (now - last_update_).InSecondsF();
if (level_ < 0.0)
level_ = 0.0;
last_update_ = now;
}
} // namespace remoting
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