From b636901c60aa666c6c6b532d06e78b529537d315 Mon Sep 17 00:00:00 2001
From: Wei-Ning Huang <w@dexon.org>
Date: Sun, 17 Mar 2019 00:33:28 +0800
Subject: core: add GetRoundHeight interface (#493)

Add GetRoundHeight interface for core to query the being height of a
round.
---
 core/interfaces.go | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'core/interfaces.go')

diff --git a/core/interfaces.go b/core/interfaces.go
index ddd6c3b..707563f 100644
--- a/core/interfaces.go
+++ b/core/interfaces.go
@@ -116,6 +116,9 @@ type Governance interface {
 	// Return the genesis node set if round == 0.
 	NodeSet(round uint64) []crypto.PublicKey
 
+	// Get the begin height of a round.
+	GetRoundHeight(round uint64) uint64
+
 	//// DKG-related methods.
 
 	// AddDKGComplaint adds a DKGComplaint.
-- 
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