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refactoring: IsInitialBlockDownload -> CChainState

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We introduce CChainState.m_cached_finished_ibd because the static state it
replaces would've been shared across all CChainState instances.
This commit is contained in:
James O'Beirne
2019-03-27 12:21:50 -04:00
parent 3ccbc376dd
commit 403e677c9e
7 changed files with 41 additions and 29 deletions
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13
src/validation.h
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@@ -249,8 +249,6 @@ bool LoadChainTip(const CChainParams& chainparams) EXCLUSIVE_LOCKS_REQUIRED(cs_m
void UnloadBlockIndex();
/** Run an instance of the script checking thread */
void ThreadScriptCheck(int worker_num);
/** Check whether we are doing an initial block download (synchronizing from disk or network) */
bool IsInitialBlockDownload();
/** Retrieve a transaction (from memory pool, or from disk, if possible) */
bool GetTransaction(const uint256& hash, CTransactionRef& tx, const Consensus::Params& params, uint256& hashBlock, const CBlockIndex* const blockIndex = nullptr);
/**
@@ -503,6 +501,14 @@ private:
*/
CCriticalSection m_cs_chainstate;
/**
* Whether this chainstate is undergoing initial block download.
*
* Mutable because we need to be able to mark IsInitialBlockDownload()
* const, which latches this for caching purposes.
*/
mutable std::atomic<bool> m_cached_finished_ibd{false};
public:
//! The current chain of blockheaders we consult and build on.
//! @see CChain, CBlockIndex.
@@ -565,6 +571,9 @@ public:
void UnloadBlockIndex();
/** Check whether we are doing an initial block download (synchronizing from disk or network) */
bool IsInitialBlockDownload() const;
private:
bool ActivateBestChainStep(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexMostWork, const std::shared_ptr<const CBlock>& pblock, bool& fInvalidFound, ConnectTrace& connectTrace) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
bool ConnectTip(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexNew, const std::shared_ptr<const CBlock>& pblock, ConnectTrace& connectTrace, DisconnectedBlockTransactions &disconnectpool) EXCLUSIVE_LOCKS_REQUIRED(cs_main);