diff options
Diffstat (limited to 'src/validation.h')
| -rw-r--r-- | src/validation.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/validation.h b/src/validation.h index 00fc87878c..5ec5a549ce 100644 --- a/src/validation.h +++ b/src/validation.h @@ -11,10 +11,12 @@ #endif #include <amount.h> +#include <attributes.h> #include <coins.h> #include <consensus/validation.h> #include <crypto/common.h> // for ReadLE64 #include <fs.h> +#include <node/utxo_snapshot.h> #include <optional.h> #include <policy/feerate.h> #include <protocol.h> // For CMessageHeader::MessageStartChars @@ -870,6 +872,12 @@ private: //! by the background validation chainstate. bool m_snapshot_validated{false}; + //! Internal helper for ActivateSnapshot(). + [[nodiscard]] bool PopulateAndValidateSnapshot( + CChainState& snapshot_chainstate, + CAutoFile& coins_file, + const SnapshotMetadata& metadata); + // For access to m_active_chainstate. friend CChainState& ChainstateActive(); friend CChain& ChainActive(); @@ -900,6 +908,22 @@ public: //! Get all chainstates currently being used. std::vector<CChainState*> GetAll(); + //! Construct and activate a Chainstate on the basis of UTXO snapshot data. + //! + //! Steps: + //! + //! - Initialize an unused CChainState. + //! - Load its `CoinsViews` contents from `coins_file`. + //! - Verify that the hash of the resulting coinsdb matches the expected hash + //! per assumeutxo chain parameters. + //! - Wait for our headers chain to include the base block of the snapshot. + //! - "Fast forward" the tip of the new chainstate to the base of the snapshot, + //! faking nTx* block index data along the way. + //! - Move the new chainstate to `m_snapshot_chainstate` and make it our + //! ChainstateActive(). + [[nodiscard]] bool ActivateSnapshot( + CAutoFile& coins_file, const SnapshotMetadata& metadata, bool in_memory); + //! The most-work chain. CChainState& ActiveChainstate() const; CChain& ActiveChain() const { return ActiveChainstate().m_chain; } |