extend std::exception logging in txdb.cpp

src/txdb.cpp

@@ -26,8 +26,8 @@ void static BatchWriteHashBestChain(CLevelDBBatch &batch, const uint256 &hash) {
 CCoinsViewDB::CCoinsViewDB(size_t nCacheSize, bool fMemory, bool fWipe) : db(GetDataDir() / "chainstate", nCacheSize, fMemory, fWipe) {
 }
 
-bool CCoinsViewDB::GetCoins(const uint256 &txid, CCoins &coins) { 
+bool CCoinsViewDB::GetCoins(const uint256 &txid, CCoins &coins) {
-    return db.Read(make_pair('c', txid), coins); 
+    return db.Read(make_pair('c', txid), coins);
 }
 
 bool CCoinsViewDB::SetCoins(const uint256 &txid, const CCoins &coins) {
@@ -37,7 +37,7 @@ bool CCoinsViewDB::SetCoins(const uint256 &txid, const CCoins &coins) {
 }
 
 bool CCoinsViewDB::HaveCoins(const uint256 &txid) {
-    return db.Exists(make_pair('c', txid)); 
+    return db.Exists(make_pair('c', txid));
 }
 
 uint256 CCoinsViewDB::GetBestBlock() {
@@ -131,7 +131,7 @@ bool CCoinsViewDB::GetStats(CCoinsStats &stats) {
                 ssKey >> txhash;
                 ss << txhash;
                 ss << VARINT(coins.nVersion);
-                ss << (coins.fCoinBase ? 'c' : 'n'); 
+                ss << (coins.fCoinBase ? 'c' : 'n');
                 ss << VARINT(coins.nHeight);
                 stats.nTransactions++;
                 for (unsigned int i=0; i<coins.vout.size(); i++) {
@@ -148,7 +148,7 @@ bool CCoinsViewDB::GetStats(CCoinsStats &stats) {
             }
             pcursor->Next();
         } catch (std::exception &e) {
-            return error("%s() : deserialize error", __PRETTY_FUNCTION__);
+            return error("%s : Deserialize or I/O error - %s", __PRETTY_FUNCTION__, e.what());
         }
     }
     delete pcursor;
@@ -226,7 +226,7 @@ bool CBlockTreeDB::LoadBlockIndexGuts()
                 break; // if shutdown requested or finished loading block index
             }
         } catch (std::exception &e) {
-            return error("%s() : deserialize error", __PRETTY_FUNCTION__);
+            return error("%s : Deserialize or I/O error - %s", __PRETTY_FUNCTION__, e.what());
         }
     }
     delete pcursor;