refactor: use std::string for index names

src/index/base.cpp

@@ -18,6 +18,9 @@
 #include <validation.h> // For g_chainman
 #include <warnings.h>
 
+#include <string>
+#include <utility>
+
 using node::ReadBlockFromDisk;
 
 constexpr uint8_t DB_BEST_BLOCK{'B'};
@@ -62,8 +65,8 @@ void BaseIndex::DB::WriteBestBlock(CDBBatch& batch, const CBlockLocator& locator
     batch.Write(DB_BEST_BLOCK, locator);
 }
 
-BaseIndex::BaseIndex(std::unique_ptr<interfaces::Chain> chain)
-    : m_chain{std::move(chain)} {}
+BaseIndex::BaseIndex(std::unique_ptr<interfaces::Chain> chain, std::string name)
+    : m_chain{std::move(chain)}, m_name{std::move(name)} {}
 
 BaseIndex::~BaseIndex()
 {

src/index/base.h

@@ -10,6 +10,8 @@
 #include <threadinterrupt.h>
 #include <validationinterface.h>
 
+#include <string>
+
 class CBlock;
 class CBlockIndex;
 class Chainstate;
@@ -95,6 +97,7 @@ private:
 protected:
     std::unique_ptr<interfaces::Chain> m_chain;
     Chainstate* m_chainstate{nullptr};
+    const std::string m_name;
 
     void BlockConnected(const std::shared_ptr<const CBlock>& block, const CBlockIndex* pindex) override;
 
@@ -117,13 +120,13 @@ protected:
     virtual DB& GetDB() const = 0;
 
     /// Get the name of the index for display in logs.
-    virtual const char* GetName() const = 0;
+    const std::string& GetName() const LIFETIMEBOUND { return m_name; }
 
     /// Update the internal best block index as well as the prune lock.
     void SetBestBlockIndex(const CBlockIndex* block);
 
 public:
-    BaseIndex(std::unique_ptr<interfaces::Chain> chain);
+    BaseIndex(std::unique_ptr<interfaces::Chain> chain, std::string name);
     /// Destructor interrupts sync thread if running and blocks until it exits.
     virtual ~BaseIndex();
 

src/index/blockfilterindex.cpp

@@ -97,7 +97,8 @@ static std::map<BlockFilterType, BlockFilterIndex> g_filter_indexes;
 
 BlockFilterIndex::BlockFilterIndex(std::unique_ptr<interfaces::Chain> chain, BlockFilterType filter_type,
                                    size_t n_cache_size, bool f_memory, bool f_wipe)
-    : BaseIndex(std::move(chain)), m_filter_type(filter_type)
+    : BaseIndex(std::move(chain), BlockFilterTypeName(filter_type) + " block filter index")
+    , m_filter_type(filter_type)
 {
     const std::string& filter_name = BlockFilterTypeName(filter_type);
     if (filter_name.empty()) throw std::invalid_argument("unknown filter_type");
@@ -105,7 +106,6 @@ BlockFilterIndex::BlockFilterIndex(std::unique_ptr<interfaces::Chain> chain, Blo
     fs::path path = gArgs.GetDataDirNet() / "indexes" / "blockfilter" / fs::u8path(filter_name);
     fs::create_directories(path);
 
-    m_name = filter_name + " block filter index";
     m_db = std::make_unique<BaseIndex::DB>(path / "db", n_cache_size, f_memory, f_wipe);
     m_filter_fileseq = std::make_unique<FlatFileSeq>(std::move(path), "fltr", FLTR_FILE_CHUNK_SIZE);
 }

src/index/blockfilterindex.h

@@ -26,7 +26,6 @@ class BlockFilterIndex final : public BaseIndex
 {
 private:
     BlockFilterType m_filter_type;
-    std::string m_name;
     std::unique_ptr<BaseIndex::DB> m_db;
 
     FlatFilePos m_next_filter_pos;
@@ -52,8 +51,6 @@ protected:
 
     BaseIndex::DB& GetDB() const LIFETIMEBOUND override { return *m_db; }
 
-    const char* GetName() const LIFETIMEBOUND override { return m_name.c_str(); }
-
 public:
     /** Constructs the index, which becomes available to be queried. */
     explicit BlockFilterIndex(std::unique_ptr<interfaces::Chain> chain, BlockFilterType filter_type,

src/index/coinstatsindex.cpp

@@ -105,7 +105,7 @@ struct DBHashKey {
 std::unique_ptr<CoinStatsIndex> g_coin_stats_index;
 
 CoinStatsIndex::CoinStatsIndex(std::unique_ptr<interfaces::Chain> chain, size_t n_cache_size, bool f_memory, bool f_wipe)
-    : BaseIndex(std::move(chain))
+    : BaseIndex(std::move(chain), "coinstatsindex")
 {
     fs::path path{gArgs.GetDataDirNet() / "indexes" / "coinstats"};
     fs::create_directories(path);

src/index/coinstatsindex.h

@@ -20,7 +20,6 @@ struct CCoinsStats;
 class CoinStatsIndex final : public BaseIndex
 {
 private:
-    std::string m_name;
     std::unique_ptr<BaseIndex::DB> m_db;
 
     MuHash3072 m_muhash;
@@ -52,8 +51,6 @@ protected:
 
     BaseIndex::DB& GetDB() const override { return *m_db; }
 
-    const char* GetName() const override { return "coinstatsindex"; }
-
 public:
     // Constructs the index, which becomes available to be queried.
     explicit CoinStatsIndex(std::unique_ptr<interfaces::Chain> chain, size_t n_cache_size, bool f_memory = false, bool f_wipe = false);

src/index/txindex.cpp

@@ -49,7 +49,7 @@ bool TxIndex::DB::WriteTxs(const std::vector<std::pair<uint256, CDiskTxPos>>& v_
 }
 
 TxIndex::TxIndex(std::unique_ptr<interfaces::Chain> chain, size_t n_cache_size, bool f_memory, bool f_wipe)
-    : BaseIndex(std::move(chain)), m_db(std::make_unique<TxIndex::DB>(n_cache_size, f_memory, f_wipe))
+    : BaseIndex(std::move(chain), "txindex"), m_db(std::make_unique<TxIndex::DB>(n_cache_size, f_memory, f_wipe))
 {}
 
 TxIndex::~TxIndex() = default;

src/index/txindex.h

@@ -27,8 +27,6 @@ protected:
 
     BaseIndex::DB& GetDB() const override;
 
-    const char* GetName() const override { return "txindex"; }
-
 public:
     /// Constructs the index, which becomes available to be queried.
     explicit TxIndex(std::unique_ptr<interfaces::Chain> chain, size_t n_cache_size, bool f_memory = false, bool f_wipe = false);