log: Fix __func__ in LogError in blockstorage module

These errors should never happen. However, when they do happen, it is
useful to log the correct error location (function name).

For example, this fixes an incorrect "ConnectBlock()" in
"WriteUndoDataForBlock".

Author: MarcoFalke

src/node/blockstorage.cpp

@@ -981,7 +981,7 @@ bool BlockManager::WriteBlockToDisk(const CBlock& block, FlatFilePos& pos) const
     // Open history file to append
     AutoFile fileout{OpenBlockFile(pos)};
     if (fileout.IsNull()) {
-        LogError("WriteBlockToDisk: OpenBlockFile failed\n");
+        LogError("%s: OpenBlockFile failed\n", __func__);
         return false;
     }
 
@@ -992,7 +992,7 @@ bool BlockManager::WriteBlockToDisk(const CBlock& block, FlatFilePos& pos) const
     // Write block
     long fileOutPos = ftell(fileout.Get());
     if (fileOutPos < 0) {
-        LogError("WriteBlockToDisk: ftell failed\n");
+        LogError("%s: ftell failed\n", __func__);
         return false;
     }
     pos.nPos = (unsigned int)fileOutPos;
@@ -1011,7 +1011,7 @@ bool BlockManager::WriteUndoDataForBlock(const CBlockUndo& blockundo, BlockValid
     if (block.GetUndoPos().IsNull()) {
         FlatFilePos _pos;
         if (!FindUndoPos(state, block.nFile, _pos, ::GetSerializeSize(blockundo) + 40)) {
-            LogError("ConnectBlock(): FindUndoPos failed\n");
+            LogError("%s: FindUndoPos failed\n", __func__);
             return false;
         }
         if (!UndoWriteToDisk(blockundo, _pos, block.pprev->GetBlockHash())) {
@@ -1050,7 +1050,7 @@ bool BlockManager::ReadBlockFromDisk(CBlock& block, const FlatFilePos& pos) cons
     // Open history file to read
     AutoFile filein{OpenBlockFile(pos, true)};
     if (filein.IsNull()) {
-        LogError("ReadBlockFromDisk: OpenBlockFile failed for %s\n", pos.ToString());
+        LogError("%s: OpenBlockFile failed for %s\n", __func__, pos.ToString());
         return false;
     }
 
@@ -1064,13 +1064,13 @@ bool BlockManager::ReadBlockFromDisk(CBlock& block, const FlatFilePos& pos) cons
 
     // Check the header
     if (!CheckProofOfWork(block.GetHash(), block.nBits, GetConsensus())) {
-        LogError("ReadBlockFromDisk: Errors in block header at %s\n", pos.ToString());
+        LogError("%s: Errors in block header at %s\n", __func__, pos.ToString());
         return false;
     }
 
     // Signet only: check block solution
     if (GetConsensus().signet_blocks && !CheckSignetBlockSolution(block, GetConsensus())) {
-        LogError("ReadBlockFromDisk: Errors in block solution at %s\n", pos.ToString());
+        LogError("%s: Errors in block solution at %s\n", __func__, pos.ToString());
         return false;
     }
 
@@ -1085,8 +1085,7 @@ bool BlockManager::ReadBlockFromDisk(CBlock& block, const CBlockIndex& index) co
         return false;
     }
     if (block.GetHash() != index.GetBlockHash()) {
-        LogError("ReadBlockFromDisk(CBlock&, CBlockIndex*): GetHash() doesn't match index for %s at %s\n",
-                     index.ToString(), block_pos.ToString());
+        LogError("%s: GetHash() doesn't match index for %s at %s\n", __func__, index.ToString(), block_pos.ToString());
         return false;
     }
     return true;