From 3fbbb9a6403a86fbed3d5d9f7939998922593377 Mon Sep 17 00:00:00 2001 From: Russell Yanofsky Date: Tue, 9 Jun 2020 18:03:26 -0400 Subject: refactor: Get rid of more redundant chain methods This just drops three interfaces::Chain methods replacing them with other calls. Motivation for removing these chain methods: - Need to get rid of findFirstBlockWithTimeAndHeight for #10102, which doesn't support overloaded methods - Followup from https://github.com/bitcoin/bitcoin/pull/16426#discussion_r412487403 - phantomcircuit comments about findNextBlock test http://www.erisian.com.au/bitcoin-core-dev/log-2020-06-06.html#l-214 Behavior is not changing in any way here. A TODO comment in ScanForWalletTransactions was removed, but just because it was invalid (see https://github.com/bitcoin/bitcoin/pull/19195#discussion_r448020762), not because it was implemented. --- src/interfaces/chain.h | 29 +++++++++-------------------- 1 file changed, 9 insertions(+), 20 deletions(-) (limited to 'src/interfaces') diff --git a/src/interfaces/chain.h b/src/interfaces/chain.h index 85d09be0f3..1a49518d69 100644 --- a/src/interfaces/chain.h +++ b/src/interfaces/chain.h @@ -44,6 +44,10 @@ public: FoundBlock& time(int64_t& time) { m_time = &time; return *this; } FoundBlock& maxTime(int64_t& max_time) { m_max_time = &max_time; return *this; } FoundBlock& mtpTime(int64_t& mtp_time) { m_mtp_time = &mtp_time; return *this; } + //! Return whether block is in the active (most-work) chain. + FoundBlock& inActiveChain(bool& in_active_chain) { m_in_active_chain = &in_active_chain; return *this; } + //! Return next block in the active chain if current block is in the active chain. + FoundBlock& nextBlock(const FoundBlock& next_block) { m_next_block = &next_block; return *this; } //! Read block data from disk. If the block exists but doesn't have data //! (for example due to pruning), the CBlock variable will be set to null. FoundBlock& data(CBlock& data) { m_data = &data; return *this; } @@ -53,6 +57,8 @@ public: int64_t* m_time = nullptr; int64_t* m_max_time = nullptr; int64_t* m_mtp_time = nullptr; + bool* m_in_active_chain = nullptr; + const FoundBlock* m_next_block = nullptr; CBlock* m_data = nullptr; }; @@ -77,9 +83,9 @@ public: //! wallet cache it, fee estimation being driven by node mempool, wallet //! should be the consumer. //! -//! * The `guessVerificationProgress`, `getBlockHeight`, `getBlockHash`, etc -//! methods can go away if rescan logic is moved on the node side, and wallet -//! only register rescan request. +//! * `guessVerificationProgress` and similar methods can go away if rescan +//! logic moves out of the wallet, and the wallet just requests scans from the +//! node (https://github.com/bitcoin/bitcoin/issues/11756) class Chain { public: @@ -90,11 +96,6 @@ public: //! any blocks) virtual Optional getHeight() = 0; - //! Get block height above genesis block. Returns 0 for genesis block, - //! 1 for following block, and so on. Returns nullopt for a block not - //! included in the current chain. - virtual Optional getBlockHeight(const uint256& hash) = 0; - //! Get block hash. Height must be valid or this function will abort. virtual uint256 getBlockHash(int height) = 0; @@ -102,13 +103,6 @@ public: //! pruned), and contains transactions. virtual bool haveBlockOnDisk(int height) = 0; - //! Return height of the first block in the chain with timestamp equal - //! or greater than the given time and height equal or greater than the - //! given height, or nullopt if there is no block with a high enough - //! timestamp and height. Also return the block hash as an optional output parameter - //! (to avoid the cost of a second lookup in case this information is needed.) - virtual Optional findFirstBlockWithTimeAndHeight(int64_t time, int height, uint256* hash) = 0; - //! Get locator for the current chain tip. virtual CBlockLocator getTipLocator() = 0; @@ -130,11 +124,6 @@ public: //! information. virtual bool findFirstBlockWithTimeAndHeight(int64_t min_time, int min_height, const FoundBlock& block={}) = 0; - //! Find next block if block is part of current chain. Also flag if - //! there was a reorg and the specified block hash is no longer in the - //! current chain, and optionally return block information. - virtual bool findNextBlock(const uint256& block_hash, int block_height, const FoundBlock& next={}, bool* reorg=nullptr) = 0; - //! Find ancestor of block at specified height and optionally return //! ancestor information. virtual bool findAncestorByHeight(const uint256& block_hash, int ancestor_height, const FoundBlock& ancestor_out={}) = 0; -- cgit v1.2.3