PhutilAPCKeyValueCache.php
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	<?php

	/**
	* Interface to the APC key-value cache. This is a very high-performance cache
	* which is local to the current machine.
	*/
	final class PhutilAPCKeyValueCache extends PhutilKeyValueCache {


	/* -( Key-Value Cache Implementation )------------------------------------- */


	public function isAvailable() {
	return function_exists('apc_fetch') &&
	ini_get('apc.enabled') &&
	(ini_get('apc.enable_cli') \|\| php_sapi_name() != 'cli');
	}

	public function getKeys(array $keys, $ttl = null) {
	$results = array();
	$fetched = false;
	foreach ($keys as $key) {
	$result = apc_fetch($key, $fetched);
	if ($fetched) {
	$results[$key] = $result;
	}
	}
	return $results;
	}

	public function setKeys(array $keys, $ttl = null) {
	// NOTE: Although modern APC supports passing an array to `apc_store()`,
	// it is not supported by older version of APC or by HPHP.

	foreach ($keys as $key => $value) {
	apc_store($key, $value, $ttl);
	}

	return $this;
	}

	public function deleteKeys(array $keys) {
	foreach ($keys as $key) {
	apc_delete($key);
	}

	return $this;
	}

	public function destroyCache() {
	apc_clear_cache('user');

	return $this;
	}

	}