Lock-values are better passed as a pointer

[govpn.git] / src / govpn / identify.go

diff --git a/src/govpn/identify.go b/src/govpn/identify.go
index 89ce6363887b0e276805f69e12bdc7941d0899bb..ed55e0dce6148b540878bf502b821b88d848cd9c 100644 (file)
--- a/src/govpn/identify.go
+++ b/src/govpn/identify.go
@@ -46,14 +46,14 @@ type CipherCache struct {
        l sync.RWMutex
 }
 
-func NewCipherCache(peerIds []PeerId) CipherCache {
+func NewCipherCache(peerIds []PeerId) *CipherCache {
        cc := CipherCache{c: make(map[PeerId]*xtea.Cipher, len(peerIds))}
        cc.Update(peerIds)
-       return cc
+       return &cc
 }
 
 // Remove disappeared keys, add missing ones with initialized ciphers.
-func (cc CipherCache) Update(peerIds []PeerId) {
+func (cc *CipherCache) Update(peerIds []PeerId) {
        available := make(map[PeerId]struct{})
        for _, peerId := range peerIds {
                available[peerId] = struct{}{}
@@ -81,7 +81,7 @@ func (cc CipherCache) Update(peerIds []PeerId) {
 // Try to find peer's identity (that equals to an encryption key)
 // by taking first blocksize sized bytes from data at the beginning
 // as plaintext and last bytes as cyphertext.
-func (cc CipherCache) Find(data []byte) *PeerId {
+func (cc *CipherCache) Find(data []byte) *PeerId {
        if len(data) < xtea.BlockSize*2 {
                return nil
        }