package crypto/tls
NewLRUClientSessionCache returns a ClientSessionCache with the given capacity that uses an LRU strategy. If capacity is < 1, a default capacity is used instead.
Golang crypto/tls.NewLRUClientSessionCache function usage example
package main
import (
"crypto/tls"
"fmt"
)
func main() {
// LRU stands for Least Recently Used strategy
// http://en.wikipedia.org/wiki/Cache_algorithms
sessioncache := tls.NewLRUClientSessionCache(4)
clientsessionstate := make([]tls.ClientSessionState, 6)
sessionkey := []string{"ses1","ses2","ses3","ses4", "ses5","ses6"}
fmt.Println("Before LRU strategy")
//populate our sessioncache
for i := 0; i < 4; i++ {
sessioncache.Put(sessionkey[i], &clientsessionstate[i])
}
//list our sessioncache
for i := 0; i < 4; i++ {
fmt.Println(sessioncache.Get(sessionkey[i]))
}
fmt.Println("AFTER LRU ")
// Add two entries and the first 2 should be removed
for i := 4; i < 6; i++ {
sessioncache.Put(sessionkey[i], &clientsessionstate[i])
}
//Removed sessionkey will return false
for i := 0; i < 4; i++ {
fmt.Println(sessioncache.Get(sessionkey[i]))
}
}
Output :
Before LRU strategy
&{[] 0 0 [] []} true
&{[] 0 0 [] []} true
&{[] 0 0 [] []} true
&{[] 0 0 [] []} true
AFTER LRU
false
false
&{[] 0 0 [] []} true
&{[] 0 0 [] []} true
Reference :
http://golang.org/pkg/crypto/tls/#NewLRUClientSessionCache
