From 3869fb89b60091281b43a35921057ba3f43c18f0 Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jgarzik@bitpay.com>
Date: Mon, 10 Jun 2013 09:36:29 -0400
Subject: Wallet: store key creation time. Calculate whole-wallet birthday.

This also encapsulate wallet-read state information into CWalletScanState.
---
 src/wallet.cpp | 27 ++++++++++++++++++++++-----
 1 file changed, 22 insertions(+), 5 deletions(-)

(limited to 'src/wallet.cpp')

diff --git a/src/wallet.cpp b/src/wallet.cpp
index 7041d49da..aa1371111 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -45,20 +45,33 @@ CPubKey CWallet::GenerateNewKey()
     return pubkey;
 }
 
-bool CWallet::AddKeyPubKey(const CKey& secret, const CPubKey &pubkey)
+bool CWallet::AddKeyPubKey(const CKey& secret, const CPubKey &pubkey,
+                           int64 nCreateTime)
 {
+    if (!nCreateTime)
+        nCreateTime = GetTime();
+    if (!nTimeFirstKey || (nCreateTime < nTimeFirstKey))
+        nTimeFirstKey = nCreateTime;
     if (!CCryptoKeyStore::AddKeyPubKey(secret, pubkey))
         return false;
     if (!fFileBacked)
         return true;
     if (!IsCrypted()) {
-        return CWalletDB(strWalletFile).WriteKey(pubkey, secret.GetPrivKey());
+        return CWalletDB(strWalletFile).WriteKey(pubkey,
+                                                 secret.GetPrivKey(),
+                                                 nCreateTime);
     }
     return true;
 }
 
-bool CWallet::AddCryptedKey(const CPubKey &vchPubKey, const vector<unsigned char> &vchCryptedSecret)
+bool CWallet::AddCryptedKey(const CPubKey &vchPubKey,
+                            const vector<unsigned char> &vchCryptedSecret,
+                            int64 nCreateTime)
 {
+    if (!nCreateTime)
+        nCreateTime = GetTime();
+    if (!nTimeFirstKey || (nCreateTime < nTimeFirstKey))
+        nTimeFirstKey = nCreateTime;
     if (!CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret))
         return false;
     if (!fFileBacked)
@@ -66,9 +79,13 @@ bool CWallet::AddCryptedKey(const CPubKey &vchPubKey, const vector<unsigned char
     {
         LOCK(cs_wallet);
         if (pwalletdbEncryption)
-            return pwalletdbEncryption->WriteCryptedKey(vchPubKey, vchCryptedSecret);
+            return pwalletdbEncryption->WriteCryptedKey(vchPubKey,
+                                                        vchCryptedSecret,
+                                                        nCreateTime);
         else
-            return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, vchCryptedSecret);
+            return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey,
+                                                            vchCryptedSecret,
+                                                            nCreateTime);
     }
     return false;
 }
-- 
cgit v1.2.3


From 8da9dd0725ea90b1fd085d9551177fe62d7a9ba2 Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jgarzik@bitpay.com>
Date: Mon, 10 Jun 2013 09:38:13 -0400
Subject: Wallet: optimize rescan to skip blocks prior to birthday

---
 src/wallet.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/wallet.cpp')

diff --git a/src/wallet.cpp b/src/wallet.cpp
index aa1371111..9a4a92cd5 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -790,6 +790,13 @@ int CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate)
         LOCK(cs_wallet);
         while (pindex)
         {
+            // no need to read and scan block, if block was created before
+            // our wallet birthday (as adjusted for block time variability)
+            if (nTimeFirstKey && (pindex->nTime < (nTimeFirstKey - 7200))) {
+                pindex = pindex->GetNextInMainChain();
+                continue;
+            }
+
             CBlock block;
             block.ReadFromDisk(pindex);
             BOOST_FOREACH(CTransaction& tx, block.vtx)
-- 
cgit v1.2.3