diff options
Diffstat (limited to 'includes/libs/ProcessCacheLRU.php')
| -rw-r--r-- | includes/libs/ProcessCacheLRU.php | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/includes/libs/ProcessCacheLRU.php b/includes/libs/ProcessCacheLRU.php index f988207a..8d80eb38 100644 --- a/includes/libs/ProcessCacheLRU.php +++ b/includes/libs/ProcessCacheLRU.php @@ -28,13 +28,14 @@ class ProcessCacheLRU { /** @var Array */ protected $cache = array(); // (key => prop => value) + /** @var Array */ protected $cacheTimes = array(); // (key => prop => UNIX timestamp) protected $maxCacheKeys; // integer; max entries /** - * @param $maxKeys integer Maximum number of entries allowed (min 1). + * @param int $maxKeys Maximum number of entries allowed (min 1). * @throws UnexpectedValueException When $maxCacheKeys is not an int or =< 0. */ public function __construct( $maxKeys ) { @@ -46,9 +47,9 @@ class ProcessCacheLRU { * This will prune the cache if it gets too large based on LRU. * If the item is already set, it will be pushed to the top of the cache. * - * @param $key string - * @param $prop string - * @param $value mixed + * @param string $key + * @param string $prop + * @param mixed $value * @return void */ public function set( $key, $prop, $value ) { @@ -61,20 +62,22 @@ class ProcessCacheLRU { unset( $this->cacheTimes[$evictKey] ); } $this->cache[$key][$prop] = $value; - $this->cacheTimes[$key][$prop] = time(); + $this->cacheTimes[$key][$prop] = microtime( true ); } /** * Check if a property field exists for a cache entry. * - * @param $key string - * @param $prop string - * @param $maxAge integer Ignore items older than this many seconds (since 1.21) + * @param string $key + * @param string $prop + * @param float $maxAge Ignore items older than this many seconds (since 1.21) * @return bool */ - public function has( $key, $prop, $maxAge = 0 ) { + public function has( $key, $prop, $maxAge = 0.0 ) { if ( isset( $this->cache[$key][$prop] ) ) { - return ( $maxAge <= 0 || ( time() - $this->cacheTimes[$key][$prop] ) <= $maxAge ); + return ( $maxAge <= 0 || + ( microtime( true ) - $this->cacheTimes[$key][$prop] ) <= $maxAge + ); } return false; @@ -85,13 +88,14 @@ class ProcessCacheLRU { * This returns null if the property is not set. * If the item is already set, it will be pushed to the top of the cache. * - * @param $key string - * @param $prop string + * @param string $key + * @param string $prop * @return mixed */ public function get( $key, $prop ) { if ( isset( $this->cache[$key][$prop] ) ) { - $this->ping( $key ); // push to top + // push to top + $this->ping( $key ); return $this->cache[$key][$prop]; } else { return null; @@ -99,9 +103,9 @@ class ProcessCacheLRU { } /** - * Clear one or several cache entries, or all cache entries + * Clear one or several cache entries, or all cache entries. * - * @param $keys string|Array + * @param string|array $keys * @return void */ public function clear( $keys = null ) { @@ -119,8 +123,9 @@ class ProcessCacheLRU { /** * Resize the maximum number of cache entries, removing older entries as needed * - * @param $maxKeys integer + * @param int $maxKeys * @return void + * @throws UnexpectedValueException */ public function resize( $maxKeys ) { if ( !is_int( $maxKeys ) || $maxKeys < 1 ) { @@ -138,7 +143,7 @@ class ProcessCacheLRU { /** * Push an entry to the top of the cache * - * @param $key string + * @param string $key */ protected function ping( $key ) { $item = $this->cache[$key]; |