diff options
| -rw-r--r-- | src/kernel/chain.cpp | 11 | ||||
| -rw-r--r-- | src/kernel/chain.h | 20 | ||||
| -rw-r--r-- | src/validation.cpp | 10 | ||||
| -rw-r--r-- | src/validation.h | 7 |
4 files changed, 48 insertions, 0 deletions
diff --git a/src/kernel/chain.cpp b/src/kernel/chain.cpp index 1c877866d0..318c956b38 100644 --- a/src/kernel/chain.cpp +++ b/src/kernel/chain.cpp @@ -4,6 +4,7 @@ #include <chain.h> #include <interfaces/chain.h> +#include <kernel/chain.h> #include <sync.h> #include <uint256.h> @@ -25,3 +26,13 @@ interfaces::BlockInfo MakeBlockInfo(const CBlockIndex* index, const CBlock* data return info; } } // namespace kernel + +std::ostream& operator<<(std::ostream& os, const ChainstateRole& role) { + switch(role) { + case ChainstateRole::NORMAL: os << "normal"; break; + case ChainstateRole::ASSUMEDVALID: os << "assumedvalid"; break; + case ChainstateRole::BACKGROUND: os << "background"; break; + default: os.setstate(std::ios_base::failbit); + } + return os; +} diff --git a/src/kernel/chain.h b/src/kernel/chain.h index f0750f8266..feba24a557 100644 --- a/src/kernel/chain.h +++ b/src/kernel/chain.h @@ -5,6 +5,8 @@ #ifndef BITCOIN_KERNEL_CHAIN_H #define BITCOIN_KERNEL_CHAIN_H +#include<iostream> + class CBlock; class CBlockIndex; namespace interfaces { @@ -14,6 +16,24 @@ struct BlockInfo; namespace kernel { //! Return data from block index. interfaces::BlockInfo MakeBlockInfo(const CBlockIndex* block_index, const CBlock* data = nullptr); + } // namespace kernel +//! This enum describes the various roles a specific Chainstate instance can take. +//! Other parts of the system sometimes need to vary in behavior depending on the +//! existence of a background validation chainstate, e.g. when building indexes. +enum class ChainstateRole { + // Single chainstate in use, "normal" IBD mode. + NORMAL, + + // Doing IBD-style validation in the background. Implies use of an assumed-valid + // chainstate. + BACKGROUND, + + // Active assumed-valid chainstate. Implies use of a background IBD chainstate. + ASSUMEDVALID, +}; + +std::ostream& operator<<(std::ostream& os, const ChainstateRole& role); + #endif // BITCOIN_KERNEL_CHAIN_H diff --git a/src/validation.cpp b/src/validation.cpp index e2091a2c9a..9a543d3a38 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -5813,6 +5813,16 @@ bool ChainstateManager::DeleteSnapshotChainstate() return true; } +ChainstateRole Chainstate::GetRole() const +{ + if (m_chainman.GetAll().size() <= 1) { + return ChainstateRole::NORMAL; + } + return (this != &m_chainman.ActiveChainstate()) ? + ChainstateRole::BACKGROUND : + ChainstateRole::ASSUMEDVALID; +} + const CBlockIndex* ChainstateManager::GetSnapshotBaseBlock() const { return m_active_chainstate ? m_active_chainstate->SnapshotBase() : nullptr; diff --git a/src/validation.h b/src/validation.h index c2434264d6..38f57ed1b5 100644 --- a/src/validation.h +++ b/src/validation.h @@ -13,6 +13,7 @@ #include <arith_uint256.h> #include <attributes.h> #include <chain.h> +#include <kernel/chain.h> #include <consensus/amount.h> #include <deploymentstatus.h> #include <kernel/chainparams.h> @@ -511,6 +512,12 @@ public: ChainstateManager& chainman, std::optional<uint256> from_snapshot_blockhash = std::nullopt); + //! Return the current role of the chainstate. See `ChainstateManager` + //! documentation for a description of the different types of chainstates. + //! + //! @sa ChainstateRole + ChainstateRole GetRole() const EXCLUSIVE_LOCKS_REQUIRED(::cs_main); + /** * Initialize the CoinsViews UTXO set database management data structures. The in-memory * cache is initialized separately. |