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/*
* Copyright (c) 2018 LI Zhennan
*
* Use of this work is governed by an MIT License.
* You may find a license copy in project root.
*
*/
package orly
import (
"image"
"sync"
)
// ImageCache is an in-memory key-value image store
//
// ImageCache is safe for concurrency use.
type ImageCache struct {
m sync.Map
}
// NewImageCache returns a empty image store
func NewImageCache() *ImageCache {
return new(ImageCache)
}
// Store sets the image for a key.
func (i *ImageCache) Store(key string, img image.Image) {
i.m.Store(key, img)
}
// Load returns the image stored in the map for a key,
// or nil if no value is present.
//
// The found result indicates whether value was found in the map.
func (i *ImageCache) Load(key string) (img image.Image, found bool) {
thing, found := i.m.Load(key)
if found {
img = thing.(image.Image)
}
return
}
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