diff options
Diffstat (limited to 'synapse/util/caches/lrucache.py')
| -rw-r--r-- | synapse/util/caches/lrucache.py | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/synapse/util/caches/lrucache.py b/synapse/util/caches/lrucache.py index a5a827b4d1..9c4c679175 100644 --- a/synapse/util/caches/lrucache.py +++ b/synapse/util/caches/lrucache.py @@ -32,7 +32,7 @@ def enumerate_leaves(node, depth): class _Node(object): __slots__ = ["prev_node", "next_node", "key", "value", "callbacks"] - def __init__(self, prev_node, next_node, key, value, callbacks=[]): + def __init__(self, prev_node, next_node, key, value, callbacks=set()): self.prev_node = prev_node self.next_node = next_node self.key = key @@ -66,7 +66,7 @@ class LruCache(object): return inner - def add_node(key, value, callbacks=[]): + def add_node(key, value, callbacks=set()): prev_node = list_root next_node = prev_node.next_node node = _Node(prev_node, next_node, key, value, callbacks) @@ -94,7 +94,7 @@ class LruCache(object): for cb in node.callbacks: cb() - node.callbacks = [] + node.callbacks.clear() @synchronized def cache_get(key, default=None, callback=None): @@ -102,7 +102,7 @@ class LruCache(object): if node is not None: move_node_to_front(node) if callback: - node.callbacks.append(callback) + node.callbacks.add(callback) return node.value else: return default @@ -114,18 +114,18 @@ class LruCache(object): if value != node.value: for cb in node.callbacks: cb() - node.callbacks = [] + node.callbacks.clear() if callback: - node.callbacks.append(callback) + node.callbacks.add(callback) move_node_to_front(node) node.value = value else: if callback: - callbacks = [callback] + callbacks = set([callback]) else: - callbacks = [] + callbacks = set() add_node(key, value, callbacks) if len(cache) > max_size: todelete = list_root.prev_node |