diff options
Diffstat (limited to 'src/coins.h')
| -rw-r--r-- | src/coins.h | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/src/coins.h b/src/coins.h index b0d6bdf333..710b8c7c83 100644 --- a/src/coins.h +++ b/src/coins.h @@ -176,7 +176,7 @@ public: //! Do a bulk modification (multiple Coin changes + BestBlock change). //! The passed mapCoins can be modified. - virtual bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock); + virtual bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock, bool erase = true); //! Get a cursor to iterate over the whole state virtual std::unique_ptr<CCoinsViewCursor> Cursor() const; @@ -202,7 +202,7 @@ public: uint256 GetBestBlock() const override; std::vector<uint256> GetHeadBlocks() const override; void SetBackend(CCoinsView &viewIn); - bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) override; + bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock, bool erase = true) override; std::unique_ptr<CCoinsViewCursor> Cursor() const override; size_t EstimateSize() const override; }; @@ -220,7 +220,7 @@ protected: mutable CCoinsMap cacheCoins; /* Cached dynamic memory usage for the inner Coin objects. */ - mutable size_t cachedCoinsUsage; + mutable size_t cachedCoinsUsage{0}; public: CCoinsViewCache(CCoinsView *baseIn); @@ -235,7 +235,7 @@ public: bool HaveCoin(const COutPoint &outpoint) const override; uint256 GetBestBlock() const override; void SetBestBlock(const uint256 &hashBlock); - bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) override; + bool BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock, bool erase = true) override; std::unique_ptr<CCoinsViewCursor> Cursor() const override { throw std::logic_error("CCoinsViewCache cursor iteration not supported."); } @@ -282,13 +282,23 @@ public: bool SpendCoin(const COutPoint &outpoint, Coin* moveto = nullptr); /** - * Push the modifications applied to this cache to its base. - * Failure to call this method before destruction will cause the changes to be forgotten. + * Push the modifications applied to this cache to its base and wipe local state. + * Failure to call this method or Sync() before destruction will cause the changes + * to be forgotten. * If false is returned, the state of this cache (and its backing view) will be undefined. */ bool Flush(); /** + * Push the modifications applied to this cache to its base while retaining + * the contents of this cache (except for spent coins, which we erase). + * Failure to call this method or Flush() before destruction will cause the changes + * to be forgotten. + * If false is returned, the state of this cache (and its backing view) will be undefined. + */ + bool Sync(); + + /** * Removes the UTXO with the given outpoint from the cache, if it is * not modified. */ |