From c25d90f125d69e33688288eff439eb7be75012e9 Mon Sep 17 00:00:00 2001
From: John Newbery <john@johnnewbery.com>
Date: Thu, 3 Aug 2017 11:03:40 -0400
Subject: [wallet] Add HasUnusedKeys() helper

---
 src/wallet/wallet.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/wallet/wallet.cpp')

diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index afe911ae9a..ce345804e1 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -3611,6 +3611,11 @@ void CReserveKey::ReturnKey()
     vchPubKey = CPubKey();
 }
 
+bool CWallet::HasUnusedKeys(int min_keys) const
+{
+    return setExternalKeyPool.size() >= min_keys && (setInternalKeyPool.size() >= min_keys || !CanSupportFeature(FEATURE_HD_SPLIT));
+}
+
 void CWallet::GetScriptForMining(std::shared_ptr<CReserveScript> &script)
 {
     std::shared_ptr<CReserveKey> rKey = std::make_shared<CReserveKey>(this);
-- 
cgit v1.2.3