validation: Make LoadBlockIndex() a member of ChainstateManager

src/init.cpp

@@ -1582,7 +1582,7 @@ bool AppInitMain(const util::Ref& context, NodeContext& node)
                 // block file from disk.
                 // Note that it also sets fReindex based on the disk flag!
                 // From here on out fReindex and fReset mean something different!
-                if (!LoadBlockIndex(chainparams)) {
+                if (!chainman.LoadBlockIndex(chainparams)) {
                     if (ShutdownRequested()) break;
                     strLoadError = _("Error loading block database");
                     break;

src/validation.cpp

@@ -4154,9 +4154,9 @@ void BlockManager::Unload() {
     m_block_index.clear();
 }
 
-bool static LoadBlockIndexDB(const CChainParams& chainparams) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
+bool static LoadBlockIndexDB(ChainstateManager& chainman, const CChainParams& chainparams) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 {
-    if (!g_chainman.m_blockman.LoadBlockIndex(
+    if (!chainman.m_blockman.LoadBlockIndex(
             chainparams.GetConsensus(), *pblocktree,
             ::ChainstateActive().setBlockIndexCandidates)) {
         return false;
@@ -4182,8 +4182,7 @@ bool static LoadBlockIndexDB(const CChainParams& chainparams) EXCLUSIVE_LOCKS_RE
     // Check presence of blk files
     LogPrintf("Checking all blk files are present...\n");
     std::set<int> setBlkDataFiles;
-    for (const std::pair<const uint256, CBlockIndex*>& item : g_chainman.BlockIndex())
-    {
+    for (const std::pair<const uint256, CBlockIndex*>& item : chainman.BlockIndex()) {
         CBlockIndex* pindex = item.second;
         if (pindex->nStatus & BLOCK_HAVE_DATA) {
             setBlkDataFiles.insert(pindex->nFile);
@@ -4600,14 +4599,15 @@ void UnloadBlockIndex()
     fHavePruned = false;
 }
 
-bool LoadBlockIndex(const CChainParams& chainparams)
+bool ChainstateManager::LoadBlockIndex(const CChainParams& chainparams)
 {
+    AssertLockHeld(cs_main);
     // Load block index from databases
     bool needs_init = fReindex;
     if (!fReindex) {
-        bool ret = LoadBlockIndexDB(chainparams);
+        bool ret = LoadBlockIndexDB(*this, chainparams);
         if (!ret) return false;
-        needs_init = g_chainman.m_blockman.m_block_index.empty();
+        needs_init = m_blockman.m_block_index.empty();
     }
 
     if (needs_init) {

src/validation.h

@@ -193,9 +193,6 @@ fs::path GetBlockPosFilename(const FlatFilePos &pos);
 void LoadExternalBlockFile(const CChainParams& chainparams, FILE* fileIn, FlatFilePos* dbp = nullptr);
 /** Ensures we have a genesis block in the block tree, possibly writing one to disk. */
 bool LoadGenesisBlock(const CChainParams& chainparams);
-/** Load the block tree and coins database from disk,
- * initializing state if we're running with -reindex. */
-bool LoadBlockIndex(const CChainParams& chainparams) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 /** Unload database information */
 void UnloadBlockIndex();
 /** Run an instance of the script checking thread */
@@ -868,6 +865,9 @@ public:
     CChain& ValidatedChain() const { return ValidatedChainstate().m_chain; }
     CBlockIndex* ValidatedTip() const { return ValidatedChain().Tip(); }
 
+    //! Load the block tree and coins database from disk, initializing state if we're running with -reindex
+    bool LoadBlockIndex(const CChainParams& chainparams) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
+
     //! Unload block index and chain data before shutdown.
     void Unload() EXCLUSIVE_LOCKS_REQUIRED(::cs_main);