/**
* Give (if possible) an extra lifetime to the given cache id
*
* @param string $id cache id
* @param int $extraLifetime
* @return boolean true if ok
*/
public function touch($id, $extraLifetime)
{
list($inf) = $this->_redis->hGet(self::PREFIX_KEY . $id, self::FIELD_INF);
if ($inf === '0') {
$expireAt = time() + $this->_redis->ttl(self::PREFIX_KEY . $id) + $extraLifetime;
return (bool) $this->_redis->expireAt(self::PREFIX_KEY . $id, $expireAt);
}
return false;
}
/**
* 设置过期时间-timestamp格式
* @param string $id
* @param timestamp $expireTimestamp
* @return mixed
*/
public function expireAt($id, $expireTimestamp)
{
$key = $this->_getKeyName($id);
return $this->_client->expireAt($key, $expireTimestamp);
}