44 lines
544 B
Go
44 lines
544 B
Go
package main
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import (
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"sync"
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)
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// Need to show solution
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type Cache struct {
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mutex sync.Mutex
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data map[string]string
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}
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func NewCache() *Cache {
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return &Cache{
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data: make(map[string]string),
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}
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}
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func (c *Cache) Set(key, value string) {
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c.mutex.Lock()
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defer c.mutex.Unlock()
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c.data[key] = value
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}
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func (c *Cache) Get(key string) string {
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c.mutex.Lock()
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defer c.mutex.Unlock()
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if c.Size() > 0 {
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return c.data[key]
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}
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return ""
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}
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func (c *Cache) Size() int {
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c.mutex.Lock()
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defer c.mutex.Unlock()
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return len(c.data)
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}
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