diff options
Diffstat (limited to 'vendor/github.com/hashicorp')
4 files changed, 45 insertions, 6 deletions
diff --git a/vendor/github.com/hashicorp/golang-lru/go.mod b/vendor/github.com/hashicorp/golang-lru/go.mod index 824cb97e..8ad8826b 100644 --- a/vendor/github.com/hashicorp/golang-lru/go.mod +++ b/vendor/github.com/hashicorp/golang-lru/go.mod @@ -1 +1,3 @@ module github.com/hashicorp/golang-lru + +go 1.12 diff --git a/vendor/github.com/hashicorp/golang-lru/lru.go b/vendor/github.com/hashicorp/golang-lru/lru.go index 1cbe04b7..052a38b4 100644 --- a/vendor/github.com/hashicorp/golang-lru/lru.go +++ b/vendor/github.com/hashicorp/golang-lru/lru.go @@ -86,17 +86,35 @@ func (c *Cache) ContainsOrAdd(key, value interface{}) (ok, evicted bool) { } // Remove removes the provided key from the cache. -func (c *Cache) Remove(key interface{}) { +func (c *Cache) Remove(key interface{}) (present bool) { c.lock.Lock() - c.lru.Remove(key) + present = c.lru.Remove(key) c.lock.Unlock() + return +} + +// Resize changes the cache size. +func (c *Cache) Resize(size int) (evicted int) { + c.lock.Lock() + evicted = c.lru.Resize(size) + c.lock.Unlock() + return evicted } // RemoveOldest removes the oldest item from the cache. -func (c *Cache) RemoveOldest() { +func (c *Cache) RemoveOldest() (key interface{}, value interface{}, ok bool) { + c.lock.Lock() + key, value, ok = c.lru.RemoveOldest() + c.lock.Unlock() + return +} + +// GetOldest returns the oldest entry +func (c *Cache) GetOldest() (key interface{}, value interface{}, ok bool) { c.lock.Lock() - c.lru.RemoveOldest() + key, value, ok = c.lru.GetOldest() c.lock.Unlock() + return } // Keys returns a slice of the keys in the cache, from oldest to newest. diff --git a/vendor/github.com/hashicorp/golang-lru/simplelru/lru.go b/vendor/github.com/hashicorp/golang-lru/simplelru/lru.go index 5673773b..a86c8539 100644 --- a/vendor/github.com/hashicorp/golang-lru/simplelru/lru.go +++ b/vendor/github.com/hashicorp/golang-lru/simplelru/lru.go @@ -73,6 +73,9 @@ func (c *LRU) Add(key, value interface{}) (evicted bool) { func (c *LRU) Get(key interface{}) (value interface{}, ok bool) { if ent, ok := c.items[key]; ok { c.evictList.MoveToFront(ent) + if ent.Value.(*entry) == nil { + return nil, false + } return ent.Value.(*entry).value, true } return @@ -142,6 +145,19 @@ func (c *LRU) Len() int { return c.evictList.Len() } +// Resize changes the cache size. +func (c *LRU) Resize(size int) (evicted int) { + diff := c.Len() - size + if diff < 0 { + diff = 0 + } + for i := 0; i < diff; i++ { + c.removeOldest() + } + c.size = size + return diff +} + // removeOldest removes the oldest item from the cache. func (c *LRU) removeOldest() { ent := c.evictList.Back() diff --git a/vendor/github.com/hashicorp/golang-lru/simplelru/lru_interface.go b/vendor/github.com/hashicorp/golang-lru/simplelru/lru_interface.go index 74c70774..92d70934 100644 --- a/vendor/github.com/hashicorp/golang-lru/simplelru/lru_interface.go +++ b/vendor/github.com/hashicorp/golang-lru/simplelru/lru_interface.go @@ -10,7 +10,7 @@ type LRUCache interface { // updates the "recently used"-ness of the key. #value, isFound Get(key interface{}) (value interface{}, ok bool) - // Check if a key exsists in cache without updating the recent-ness. + // Checks if a key exists in cache without updating the recent-ness. Contains(key interface{}) (ok bool) // Returns key's value without updating the "recently used"-ness of the key. @@ -31,6 +31,9 @@ type LRUCache interface { // Returns the number of items in the cache. Len() int - // Clear all cache entries + // Clears all cache entries. Purge() + + // Resizes cache, returning number evicted + Resize(int) int } |