Rename ReleaseWallet to FlushAndDeleteWallet

To better describe the function's behavior.
And add wallet name to logprint.

Author: furszy

src/wallet/wallet.cpp

@@ -227,10 +227,10 @@ static std::set<std::string> g_loading_wallet_set GUARDED_BY(g_loading_wallet_mu
 static std::set<std::string> g_unloading_wallet_set GUARDED_BY(g_wallet_release_mutex);
 
 // Custom deleter for shared_ptr<CWallet>.
-static void ReleaseWallet(CWallet* wallet)
+static void FlushAndDeleteWallet(CWallet* wallet)
 {
     const std::string name = wallet->GetName();
-    wallet->WalletLogPrintf("Releasing wallet\n");
+    wallet->WalletLogPrintf("Releasing wallet %s..\n", name);
     wallet->Flush();
     delete wallet;
     // Wallet is now released, notify WaitForDeleteWallet, if any.
@@ -255,7 +255,7 @@ void WaitForDeleteWallet(std::shared_ptr<CWallet>&& wallet)
         // Multiple threads could simultaneously be waiting for deletion.
     }
 
-    // Time to ditch our shared_ptr and wait for ReleaseWallet call.
+    // Time to ditch our shared_ptr and wait for FlushAndDeleteWallet call.
     wallet.reset();
     {
         WAIT_LOCK(g_wallet_release_mutex, lock);
@@ -2972,7 +2972,7 @@ std::shared_ptr<CWallet> CWallet::Create(WalletContext& context, const std::stri
     const auto start{SteadyClock::now()};
     // TODO: Can't use std::make_shared because we need a custom deleter but
     // should be possible to use std::allocate_shared.
-    std::shared_ptr<CWallet> walletInstance(new CWallet(chain, name, std::move(database)), ReleaseWallet);
+    std::shared_ptr<CWallet> walletInstance(new CWallet(chain, name, std::move(database)), FlushAndDeleteWallet);
     walletInstance->m_keypool_size = std::max(args.GetIntArg("-keypool", DEFAULT_KEYPOOL_SIZE), int64_t{1});
     walletInstance->m_notify_tx_changed_script = args.GetArg("-walletnotify", "");