/**
* @dataProvider provideAdaptiveTTL
* @covers WANObjectCache::adaptiveTTL()
* @param float|int $ago
* @param int $maxTTL
* @param int $minTTL
* @param float $factor
* @param int $adaptiveTTL
*/
public function testAdaptiveTTL($ago, $maxTTL, $minTTL, $factor, $adaptiveTTL)
{
$mtime = $ago ? time() - $ago : $ago;
$margin = 5;
$ttl = $this->cache->adaptiveTTL($mtime, $maxTTL, $minTTL, $factor);
$this->assertGreaterThanOrEqual($adaptiveTTL - $margin, $ttl);
$this->assertLessThanOrEqual($adaptiveTTL + $margin, $ttl);
$ttl = $this->cache->adaptiveTTL((string) $mtime, $maxTTL, $minTTL, $factor);
$this->assertGreaterThanOrEqual($adaptiveTTL - $margin, $ttl);
$this->assertLessThanOrEqual($adaptiveTTL + $margin, $ttl);
}
/**
* Set the cached stat info for a file path.
* Negatives (404s) are not cached. By not caching negatives, we can skip cache
* salting for the case when a file is created at a path were there was none before.
*
* @param string $path Storage path
* @param array $val Stat information to cache
*/
protected final function setFileCache($path, array $val)
{
$path = FileBackend::normalizeStoragePath($path);
if ($path === null) {
return;
// invalid storage path
}
$mtime = ConvertibleTimestamp::convert(TS_UNIX, $val['mtime']);
$ttl = $this->memCache->adaptiveTTL($mtime, 7 * 86400, 300, 0.1);
$key = $this->fileCacheKey($path);
// Set the cache unless it is currently salted.
$this->memCache->set($key, $val, $ttl);
}
