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imageproxy/cache.go
Will Norris 7ba3f124eb cleanup license headers and contributing docs
- switch to "project authors" style copyright.  Instead of an AUTHORS
  file (https://opensource.google/docs/releasing/authors/), I just list
  Google as a major copyright holder in the README.
- use SPDX style license headers in source files
- remove CLA requirement from contributing docs
2021-03-10 12:24:13 -08:00

26 lines
800 B
Go

// Copyright 2013 The imageproxy authors.
// SPDX-License-Identifier: Apache-2.0
package imageproxy
// The Cache interface defines a cache for storing arbitrary data. The
// interface is designed to align with httpcache.Cache.
type Cache interface {
// Get retrieves the cached data for the provided key.
Get(key string) (data []byte, ok bool)
// Set caches the provided data.
Set(key string, data []byte)
// Delete deletes the cached data at the specified key.
Delete(key string)
}
// NopCache provides a no-op cache implementation that doesn't actually cache anything.
var NopCache = new(nopCache)
type nopCache struct{}
func (c nopCache) Get(string) ([]byte, bool) { return nil, false }
func (c nopCache) Set(string, []byte) {}
func (c nopCache) Delete(string) {}