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241 lines
5.7 KiB
PHP
241 lines
5.7 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Cache\Simple;
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use Psr\SimpleCache\CacheInterface;
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use Symfony\Component\Cache\PruneableInterface;
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use Symfony\Component\Cache\ResettableInterface;
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/**
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* An adapter that collects data about all cache calls.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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class TraceableCache implements CacheInterface, PruneableInterface, ResettableInterface
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{
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private $pool;
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private $miss;
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private $calls = array();
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public function __construct(CacheInterface $pool)
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{
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$this->pool = $pool;
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$this->miss = new \stdClass();
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}
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/**
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* {@inheritdoc}
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*/
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public function get($key, $default = null)
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{
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$miss = null !== $default && is_object($default) ? $default : $this->miss;
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$event = $this->start(__FUNCTION__);
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try {
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$value = $this->pool->get($key, $miss);
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} finally {
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$event->end = microtime(true);
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}
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if ($event->result[$key] = $miss !== $value) {
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++$event->hits;
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} else {
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++$event->misses;
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$value = $default;
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}
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return $value;
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}
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/**
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* {@inheritdoc}
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*/
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public function has($key)
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{
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$event = $this->start(__FUNCTION__);
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try {
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return $event->result[$key] = $this->pool->has($key);
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} finally {
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$event->end = microtime(true);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function delete($key)
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{
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$event = $this->start(__FUNCTION__);
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try {
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return $event->result[$key] = $this->pool->delete($key);
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} finally {
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$event->end = microtime(true);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function set($key, $value, $ttl = null)
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{
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$event = $this->start(__FUNCTION__);
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try {
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return $event->result[$key] = $this->pool->set($key, $value, $ttl);
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} finally {
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$event->end = microtime(true);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function setMultiple($values, $ttl = null)
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{
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$event = $this->start(__FUNCTION__);
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$event->result['keys'] = array();
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if ($values instanceof \Traversable) {
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$values = function () use ($values, $event) {
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foreach ($values as $k => $v) {
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$event->result['keys'][] = $k;
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yield $k => $v;
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}
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};
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$values = $values();
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} elseif (is_array($values)) {
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$event->result['keys'] = array_keys($values);
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}
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try {
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return $event->result['result'] = $this->pool->setMultiple($values, $ttl);
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} finally {
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$event->end = microtime(true);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function getMultiple($keys, $default = null)
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{
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$miss = null !== $default && is_object($default) ? $default : $this->miss;
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$event = $this->start(__FUNCTION__);
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try {
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$result = $this->pool->getMultiple($keys, $miss);
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} finally {
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$event->end = microtime(true);
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}
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$f = function () use ($result, $event, $miss, $default) {
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$event->result = array();
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foreach ($result as $key => $value) {
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if ($event->result[$key] = $miss !== $value) {
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++$event->hits;
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} else {
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++$event->misses;
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$value = $default;
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}
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yield $key => $value;
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}
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};
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return $f();
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}
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/**
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* {@inheritdoc}
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*/
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public function clear()
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{
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$event = $this->start(__FUNCTION__);
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try {
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return $event->result = $this->pool->clear();
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} finally {
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$event->end = microtime(true);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function deleteMultiple($keys)
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{
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$event = $this->start(__FUNCTION__);
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if ($keys instanceof \Traversable) {
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$keys = $event->result['keys'] = iterator_to_array($keys, false);
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} else {
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$event->result['keys'] = $keys;
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}
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try {
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return $event->result['result'] = $this->pool->deleteMultiple($keys);
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} finally {
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$event->end = microtime(true);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function prune()
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{
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if (!$this->pool instanceof PruneableInterface) {
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return false;
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}
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$event = $this->start(__FUNCTION__);
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try {
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return $event->result = $this->pool->prune();
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} finally {
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$event->end = microtime(true);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function reset()
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{
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if (!$this->pool instanceof ResettableInterface) {
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return;
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}
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$event = $this->start(__FUNCTION__);
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try {
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$this->pool->reset();
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} finally {
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$event->end = microtime(true);
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}
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}
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public function getCalls()
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{
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try {
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return $this->calls;
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} finally {
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$this->calls = array();
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}
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}
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private function start($name)
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{
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$this->calls[] = $event = new TraceableCacheEvent();
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$event->name = $name;
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$event->start = microtime(true);
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return $event;
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}
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}
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class TraceableCacheEvent
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{
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public $name;
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public $start;
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public $end;
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public $result;
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public $hits = 0;
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public $misses = 0;
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}
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