Added locks on the setpwalletRegistered functions in main.cpp and added an UnregisterAllWallets function.

src/main.cpp

@@ -99,9 +99,16 @@ void UnregisterWallet(CWallet* pwalletIn)
     }
 }
 
+void UnregisterAllWallets()
+{
+    LOCK(cs_setpwalletRegistered);
+    setpwalletRegistered.clear();
+}
+
 // get the wallet transaction with the given hash (if it exists)
 bool static GetTransaction(const uint256& hashTx, CWalletTx& wtx)
 {
+    LOCK(cs_setpwalletRegistered);
     BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
         if (pwallet->GetTransaction(hashTx,wtx))
             return true;
@@ -111,6 +118,7 @@ bool static GetTransaction(const uint256& hashTx, CWalletTx& wtx)
 // erases transaction with the given hash from all wallets
 void static EraseFromWallets(uint256 hash)
 {
+    LOCK(cs_setpwalletRegistered);
     BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
         pwallet->EraseFromWallet(hash);
 }
@@ -118,6 +126,7 @@ void static EraseFromWallets(uint256 hash)
 // make sure all wallets know about the given transaction, in the given block
 void SyncWithWallets(const uint256 &hash, const CTransaction& tx, const CBlock* pblock, bool fUpdate)
 {
+    LOCK(cs_setpwalletRegistered);
     BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
         pwallet->AddToWalletIfInvolvingMe(hash, tx, pblock, fUpdate);
 }
@@ -125,6 +134,7 @@ void SyncWithWallets(const uint256 &hash, const CTransaction& tx, const CBlock*
 // notify wallets about a new best chain
 void static SetBestChain(const CBlockLocator& loc)
 {
+    LOCK(cs_setpwalletRegistered);
     BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
         pwallet->SetBestChain(loc);
 }
@@ -132,6 +142,7 @@ void static SetBestChain(const CBlockLocator& loc)
 // notify wallets about an updated transaction
 void static UpdatedTransaction(const uint256& hashTx)
 {
+    LOCK(cs_setpwalletRegistered);
     BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
         pwallet->UpdatedTransaction(hashTx);
 }
@@ -139,6 +150,7 @@ void static UpdatedTransaction(const uint256& hashTx)
 // dump all wallets
 void static PrintWallets(const CBlock& block)
 {
+    LOCK(cs_setpwalletRegistered);
     BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
         pwallet->PrintWallet(block);
 }
@@ -146,6 +158,7 @@ void static PrintWallets(const CBlock& block)
 // notify wallets about an incoming inventory (for request counts)
 void static Inventory(const uint256& hash)
 {
+    LOCK(cs_setpwalletRegistered);
     BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
         pwallet->Inventory(hash);
 }
@@ -153,6 +166,7 @@ void static Inventory(const uint256& hash)
 // ask wallets to resend their transactions
 void static ResendWalletTransactions()
 {
+    LOCK(cs_setpwalletRegistered);
     BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
         pwallet->ResendWalletTransactions();
 }