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// Copyright 2013 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 "chrome/browser/net/timed_cache.h"
#include "googleurl/src/gurl.h"
namespace chrome_browser_net {
TimedCache::TimedCache(const base::TimeDelta& max_duration)
: mru_cache_(UrlMruTimedCache::NO_AUTO_EVICT),
max_duration_(max_duration) {
}
// Make Clang compilation happy with explicit destructor.
TimedCache::~TimedCache() {}
bool TimedCache::WasRecentlySeen(const GURL& url) {
DCHECK_EQ(url.GetWithEmptyPath(), url);
// Evict any overly old entries.
base::TimeTicks now = base::TimeTicks::Now();
UrlMruTimedCache::reverse_iterator eldest = mru_cache_.rbegin();
while (!mru_cache_.empty()) {
DCHECK(eldest == mru_cache_.rbegin());
if (now - eldest->second < max_duration_)
break;
eldest = mru_cache_.Erase(eldest);
}
return mru_cache_.end() != mru_cache_.Peek(url);
}
void TimedCache::SetRecentlySeen(const GURL& url) {
DCHECK_EQ(url.GetWithEmptyPath(), url);
mru_cache_.Put(url, base::TimeTicks::Now());
}
} // namespace chrome_browser_net
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