1 files changed, 56 insertions, 0 deletions

diff --git a/cache/cache.go b/cache/cache.go
new file mode 100644
index 0000000..ca588ae
--- /dev/null
+++ b/cache/cache.go
@@ -0,0 +1,56 @@
+package cache

+

+import (

+    "time"

+    "log"

+)

+

+type CacheItem struct {

+    Expires time.Time

+    Value interface{}

+}

+type Cache struct {

+    items map[int]CacheItem

+}

+

+func New() *Cache {

+    c := &Cache{ make(map[int]CacheItem) }

+    go c.ticker()

+    return c

+}

+

+func (c *Cache) ticker() {

+    for _ = range time.NewTicker(time.Second * 1).C {

+        t := time.Now()

+        for key, item := range c.items {

+            if t.Sub(item.Expires) > 0 {

+                log.Println("cache delete", key)

+                delete(c.items, key)

+            }

+        }

+    }

+}

+

+func (c *Cache) Insert(key int, item interface{}) {

+    c.items[key] = CacheItem{ time.Now().Add(time.Minute * 5), item }

+}

+

+func (c *Cache) Remove(key int) {

+    delete(c.items, key)

+}

+

+func (c *Cache) Clear() {

+    c.items = make(map[int]CacheItem)

+}

+

+func (c *Cache) Get(key int) (interface{}, bool) {

+    if ci, ok := c.items[key]; ok {

+        return ci.Value, true

+    }

+    return nil, false

+}

+

+func (c *Cache) Has(key int) bool {

+    _, ok := c.items[key]

+    return ok

+}
\ No newline at end of file