From 6b7005b04fcb55b8ce54311ac86e6342772fefd3 Mon Sep 17 00:00:00 2001
From: Santi <scorredoira@gmail.com>
Date: Sun, 3 Nov 2019 11:41:21 +0100
Subject: [PATCH] Add keys method

---
 cache.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/cache.go b/cache.go
index db88d2f..bf817b3 100644
--- a/cache.go
+++ b/cache.go
@@ -1034,6 +1034,16 @@ func (c *cache) LoadFile(fname string) error {
 	return fp.Close()
 }
 
+func (c *cache) Keys() []string {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+	keys := make([]string, 0, len(c.items))
+	for k := range c.items {
+		keys = append(keys, k)
+	}
+	return keys
+}
+
 // Copies all unexpired items in the cache into a new map and returns it.
 func (c *cache) Items() map[string]Item {
 	c.mu.RLock()