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Align RemoveOldest Function with Pseudo-Code from the Paper #1

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Align RemoveOldest Function with Pseudo-Code from the Paper #1

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14 changes: 7 additions & 7 deletions lru/lru.go
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Original file line number Diff line number Diff line change
Expand Up @@ -67,11 +67,11 @@ func (c *Cache) Add(key Key, value interface{}) {
ee.Value.(*entry).value = value
return
}
ele := c.ll.PushFront(&entry{key, false, value})
c.cache[key] = ele
if c.MaxEntries != 0 && c.ll.Len() > c.MaxEntries {
if c.MaxEntries != 0 && c.ll.Len() >= c.MaxEntries {
c.RemoveOldest()
}
ele := c.ll.PushFront(&entry{key, false, value})
c.cache[key] = ele
}

// Get looks up a key's value from the cache.
Expand Down Expand Up @@ -105,12 +105,12 @@ func (c *Cache) RemoveOldest() {
if ele == nil {
ele = c.ll.Back()
}
for ele != nil && ele.Value.(*entry).visited {
for ele.Value.(*entry).visited {
ele.Value.(*entry).visited = false
ele = ele.Prev()
}
if ele == nil {
println("Error: RemoveOldest cannot find element")
if ele == nil {
ele = c.ll.Back()
}
}
c.ptr = ele.Prev()
c.removeElement(ele)
Expand Down