Merge branch 'master' of https://github.com/mycoralhealth/blockchain-…

…tutorial
EthereumSalon · Feb 26, 2018 · f92600d · f92600d
2 parents c52794b + 679e984
commit f92600d
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/networking/main.go b/networking/main.go
@@ -134,9 +134,11 @@ func isBlockValid(newBlock, oldBlock Block) bool {
 
 // make sure the chain we're checking is longer than the current blockchain
 func replaceChain(newBlocks []Block) {
+	mutex.Lock()
 	if len(newBlocks) > len(Blockchain) {
 		Blockchain = newBlocks
 	}
+	mutex.Unlock()
 }
 
 // SHA256 hasing