48 lines
852 B
Go
Executable file
48 lines
852 B
Go
Executable file
package ccache
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import (
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"sync"
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"time"
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)
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type Bucket struct {
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sync.RWMutex
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lookup map[string]*Item
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}
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func (b *Bucket) get(key string) *Item {
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b.RLock()
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defer b.RUnlock()
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return b.lookup[key]
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}
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func (b *Bucket) set(key string, value interface{}, duration time.Duration) *Item {
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expires := time.Now().Add(duration)
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b.Lock()
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defer b.Unlock()
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if existing, exists := b.lookup[key]; exists {
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existing.Lock()
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existing.value = value
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existing.expires = expires
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existing.Unlock()
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return existing
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}
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item := newItem(key, value, expires)
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b.lookup[key] = item
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return item
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}
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func (b *Bucket) delete(key string) {
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b.Lock()
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defer b.Unlock()
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delete(b.lookup, key)
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}
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func (b *Bucket) getAndDelete(key string) *Item{
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b.Lock()
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defer b.Unlock()
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item := b.lookup[key]
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delete(b.lookup, key)
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return item
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}
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