chain: Rename HaveTxsDownloaded to HaveNumChainTxs

Co-authored-by: MarcoFalke <falke.marco@gmail.com>

Author: fjahr

src/chain.h

@@ -280,10 +280,8 @@ class CBlockIndex
      * Note that this will be true for the snapshot base block, if one is loaded (and
      * all subsequent assumed-valid blocks) since its nChainTx value will have been set
      * manually based on the related AssumeutxoData entry.
-     *
-     * TODO: potentially change the name of this based on the fact above.
      */
-    bool HaveTxsDownloaded() const { return nChainTx != 0; }
+    bool HaveNumChainTxs() const { return nChainTx != 0; }
 
     NodeSeconds Time() const
     {

src/net_processing.cpp

@@ -1448,7 +1448,7 @@ void PeerManagerImpl::FindNextBlocks(std::vector<const CBlockIndex*>& vBlocks, c
                 return;
             }
             if (pindex->nStatus & BLOCK_HAVE_DATA || (activeChain && activeChain->Contains(pindex))) {
-                if (activeChain && pindex->HaveTxsDownloaded())
+                if (activeChain && pindex->HaveNumChainTxs())
                     state->pindexLastCommonBlock = pindex;
             } else if (!IsBlockRequested(pindex->GetBlockHash())) {
                 // The block is not already downloaded, and not yet in flight.
@@ -2233,7 +2233,7 @@ void PeerManagerImpl::ProcessGetBlockData(CNode& pfrom, Peer& peer, const CInv&
         LOCK(cs_main);
         const CBlockIndex* pindex = m_chainman.m_blockman.LookupBlockIndex(inv.hash);
         if (pindex) {
-            if (pindex->HaveTxsDownloaded() && !pindex->IsValid(BLOCK_VALID_SCRIPTS) &&
+            if (pindex->HaveNumChainTxs() && !pindex->IsValid(BLOCK_VALID_SCRIPTS) &&
                     pindex->IsValid(BLOCK_VALID_TREE)) {
                 // If we have the block and all of its parents, but have not yet validated it,
                 // we might be in the middle of connecting it (ie in the unlock of cs_main

src/rpc/blockchain.cpp

@@ -1455,7 +1455,7 @@ static RPCHelpMan getchaintips()
         } else if (block->nStatus & BLOCK_FAILED_MASK) {
             // This block or one of its ancestors is invalid.
             status = "invalid";
-        } else if (!block->HaveTxsDownloaded()) {
+        } else if (!block->HaveNumChainTxs()) {
             // This block cannot be connected because full block data for it or one of its parents is missing.
             status = "headers-only";
         } else if (block->IsValid(BLOCK_VALID_SCRIPTS)) {

src/test/fuzz/chain.cpp

@@ -29,7 +29,7 @@ FUZZ_TARGET(chain)
         (void)disk_block_index->GetBlockTimeMax();
         (void)disk_block_index->GetMedianTimePast();
         (void)disk_block_index->GetUndoPos();
-        (void)disk_block_index->HaveTxsDownloaded();
+        (void)disk_block_index->HaveNumChainTxs();
         (void)disk_block_index->IsValid();
     }
 

src/validation.cpp

@@ -2996,7 +2996,7 @@ CBlockIndex* Chainstate::FindMostWorkChain()
         CBlockIndex *pindexTest = pindexNew;
         bool fInvalidAncestor = false;
         while (pindexTest && !m_chain.Contains(pindexTest)) {
-            assert(pindexTest->HaveTxsDownloaded() || pindexTest->nHeight == 0);
+            assert(pindexTest->HaveNumChainTxs() || pindexTest->nHeight == 0);
 
             // Pruned nodes may have entries in setBlockIndexCandidates for
             // which block files have been deleted.  Remove those as candidates
@@ -3351,7 +3351,7 @@ bool Chainstate::PreciousBlock(BlockValidationState& state, CBlockIndex* pindex)
             // call preciousblock 2**31-1 times on the same set of tips...
             m_chainman.nBlockReverseSequenceId--;
         }
-        if (pindex->IsValid(BLOCK_VALID_TRANSACTIONS) && pindex->HaveTxsDownloaded()) {
+        if (pindex->IsValid(BLOCK_VALID_TRANSACTIONS) && pindex->HaveNumChainTxs()) {
             setBlockIndexCandidates.insert(pindex);
             PruneBlockIndexCandidates();
         }
@@ -3399,7 +3399,7 @@ bool Chainstate::InvalidateBlock(BlockValidationState& state, CBlockIndex* pinde
             if (!m_chain.Contains(candidate) &&
                     !CBlockIndexWorkComparator()(candidate, pindex->pprev) &&
                     candidate->IsValid(BLOCK_VALID_TRANSACTIONS) &&
-                    candidate->HaveTxsDownloaded()) {
+                    candidate->HaveNumChainTxs()) {
                 candidate_blocks_by_work.insert(std::make_pair(candidate->nChainWork, candidate));
             }
         }
@@ -3488,7 +3488,7 @@ bool Chainstate::InvalidateBlock(BlockValidationState& state, CBlockIndex* pinde
         // Loop back over all block index entries and add any missing entries
         // to setBlockIndexCandidates.
         for (auto& [_, block_index] : m_blockman.m_block_index) {
-            if (block_index.IsValid(BLOCK_VALID_TRANSACTIONS) && block_index.HaveTxsDownloaded() && !setBlockIndexCandidates.value_comp()(&block_index, m_chain.Tip())) {
+            if (block_index.IsValid(BLOCK_VALID_TRANSACTIONS) && block_index.HaveNumChainTxs() && !setBlockIndexCandidates.value_comp()(&block_index, m_chain.Tip())) {
                 setBlockIndexCandidates.insert(&block_index);
             }
         }
@@ -3520,7 +3520,7 @@ void Chainstate::ResetBlockFailureFlags(CBlockIndex *pindex) {
         if (!block_index.IsValid() && block_index.GetAncestor(nHeight) == pindex) {
             block_index.nStatus &= ~BLOCK_FAILED_MASK;
             m_blockman.m_dirty_blockindex.insert(&block_index);
-            if (block_index.IsValid(BLOCK_VALID_TRANSACTIONS) && block_index.HaveTxsDownloaded() && setBlockIndexCandidates.value_comp()(m_chain.Tip(), &block_index)) {
+            if (block_index.IsValid(BLOCK_VALID_TRANSACTIONS) && block_index.HaveNumChainTxs() && setBlockIndexCandidates.value_comp()(m_chain.Tip(), &block_index)) {
                 setBlockIndexCandidates.insert(&block_index);
             }
             if (&block_index == m_chainman.m_best_invalid) {
@@ -3583,7 +3583,7 @@ void ChainstateManager::ReceivedBlockTransactions(const CBlock& block, CBlockInd
     pindexNew->RaiseValidity(BLOCK_VALID_TRANSACTIONS);
     m_blockman.m_dirty_blockindex.insert(pindexNew);
 
-    if (pindexNew->pprev == nullptr || pindexNew->pprev->HaveTxsDownloaded()) {
+    if (pindexNew->pprev == nullptr || pindexNew->pprev->HaveNumChainTxs()) {
         // If pindexNew is the genesis block or all parents are BLOCK_VALID_TRANSACTIONS.
         std::deque<CBlockIndex*> queue;
         queue.push_back(pindexNew);
@@ -4566,7 +4566,7 @@ bool ChainstateManager::LoadBlockIndex()
             // here.
             if (pindex == GetSnapshotBaseBlock() ||
                     (pindex->IsValid(BLOCK_VALID_TRANSACTIONS) &&
-                     (pindex->HaveTxsDownloaded() || pindex->pprev == nullptr))) {
+                     (pindex->HaveNumChainTxs() || pindex->pprev == nullptr))) {
 
                 for (Chainstate* chainstate : GetAll()) {
                     chainstate->TryAddBlockIndexCandidate(pindex);
@@ -4890,7 +4890,7 @@ void ChainstateManager::CheckBlockIndex()
                 }
             }
         }
-        if (!pindex->HaveTxsDownloaded()) assert(pindex->nSequenceId <= 0); // nSequenceId can't be set positive for blocks that aren't linked (negative is used for preciousblock)
+        if (!pindex->HaveNumChainTxs()) assert(pindex->nSequenceId <= 0); // nSequenceId can't be set positive for blocks that aren't linked (negative is used for preciousblock)
         // VALID_TRANSACTIONS is equivalent to nTx > 0 for all nodes (whether or not pruning has occurred).
         // HAVE_DATA is only equivalent to nTx > 0 (or VALID_TRANSACTIONS) if no pruning has occurred.
         // Unless these indexes are assumed valid and pending block download on a
@@ -4920,9 +4920,9 @@ void ChainstateManager::CheckBlockIndex()
             // actually seen a block's transactions.
             assert(((pindex->nStatus & BLOCK_VALID_MASK) >= BLOCK_VALID_TRANSACTIONS) == (pindex->nTx > 0)); // This is pruning-independent.
         }
-        // All parents having had data (at some point) is equivalent to all parents being VALID_TRANSACTIONS, which is equivalent to HaveTxsDownloaded().
-        assert((pindexFirstNeverProcessed == nullptr) == pindex->HaveTxsDownloaded());
-        assert((pindexFirstNotTransactionsValid == nullptr) == pindex->HaveTxsDownloaded());
+        // All parents having had data (at some point) is equivalent to all parents being VALID_TRANSACTIONS, which is equivalent to HaveNumChainTxs().
+        assert((pindexFirstNeverProcessed == nullptr) == pindex->HaveNumChainTxs());
+        assert((pindexFirstNotTransactionsValid == nullptr) == pindex->HaveNumChainTxs());
         assert(pindex->nHeight == nHeight); // nHeight must be consistent.
         assert(pindex->pprev == nullptr || pindex->nChainWork >= pindex->pprev->nChainWork); // For every block except the genesis block, the chainwork must be larger than the parent's.
         assert(nHeight < 2 || (pindex->pskip && (pindex->pskip->nHeight < nHeight))); // The pskip pointer must point back for all but the first 2 blocks.