wallet: fast rescan: show log message for every non-skipped block

For that purpose, a new logging category BCLog::SCAN is introduced.

1 files changed, 10 insertions, 4 deletions

diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 912f995ca2..560058af03 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -1849,10 +1849,16 @@ CWallet::ScanResult CWallet::ScanForWalletTransactions(const uint256& start_bloc
         if (fast_rescan_filter) {
             fast_rescan_filter->UpdateIfNeeded();
             auto matches_block{fast_rescan_filter->MatchesBlock(block_hash)};
-            if (matches_block.has_value() && !*matches_block) {
-                result.last_scanned_block = block_hash;
-                result.last_scanned_height = block_height;
-                fetch_block = false;
+            if (matches_block.has_value()) {
+                if (*matches_block) {
+                    LogPrint(BCLog::SCAN, "Fast rescan: inspect block %d [%s] (filter matched)\n", block_height, block_hash.ToString());
+                } else {
+                    result.last_scanned_block = block_hash;
+                    result.last_scanned_height = block_height;
+                    fetch_block = false;
+                }
+            } else {
+                LogPrint(BCLog::SCAN, "Fast rescan: inspect block %d [%s] (WARNING: block filter not found!)\n", block_height, block_hash.ToString());
             }
         }