From c94c799347a0a9e6803d5a6f224d37c8a90f533c Mon Sep 17 00:00:00 2001
From: Svyatoslav Nikolsky <svyatonik@gmail.com>
Date: Thu, 20 Jul 2017 13:28:31 +0300
Subject: [PATCH] re-read only when blockchain is changed

---
 secret_store/src/acl_storage.rs    | 6 ++++--
 secret_store/src/key_server_set.rs | 4 +++-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/secret_store/src/acl_storage.rs b/secret_store/src/acl_storage.rs
index 7ae72cbfc..37d5bcd25 100644
--- a/secret_store/src/acl_storage.rs
+++ b/secret_store/src/acl_storage.rs
@@ -64,8 +64,10 @@ impl AclStorage for OnChainAclStorage {
 }
 
 impl ChainNotify for OnChainAclStorage {
-	fn new_blocks(&self, _imported: Vec<H256>, _invalid: Vec<H256>, _enacted: Vec<H256>, _retracted: Vec<H256>, _sealed: Vec<H256>, _proposed: Vec<Bytes>, _duration: u64) {
-		self.contract.lock().update()
+	fn new_blocks(&self, _imported: Vec<H256>, _invalid: Vec<H256>, enacted: Vec<H256>, retracted: Vec<H256>, _sealed: Vec<H256>, _proposed: Vec<Bytes>, _duration: u64) {
+		if !enacted.is_empty() || !retracted.is_empty() {
+			self.contract.lock().update()
+		}
 	}
 }
 
diff --git a/secret_store/src/key_server_set.rs b/secret_store/src/key_server_set.rs
index 302f76196..47f033db1 100644
--- a/secret_store/src/key_server_set.rs
+++ b/secret_store/src/key_server_set.rs
@@ -85,7 +85,9 @@ impl KeyServerSet for OnChainKeyServerSet {
 
 impl ChainNotify for OnChainKeyServerSet {
 	fn new_blocks(&self, _imported: Vec<H256>, _invalid: Vec<H256>, enacted: Vec<H256>, retracted: Vec<H256>, _sealed: Vec<H256>, _proposed: Vec<Bytes>, _duration: u64) {
-		self.contract.lock().update(enacted, retracted)
+		if !enacted.is_empty() || !retracted.is_empty() {
+			self.contract.lock().update(enacted, retracted)
+		}
 	}
 }