#include <rpc/blockchain.h>
#include <avalanche/processor.h>
#include <blockfilter.h>
#include <chain.h>
#include <chainparams.h>
#include <clientversion.h>
#include <coins.h>
#include <common/args.h>
#include <config.h>
#include <consensus/amount.h>
#include <consensus/params.h>
#include <consensus/validation.h>
#include <core_io.h>
#include <hash.h>
#include <index/blockfilterindex.h>
#include <index/coinstatsindex.h>
#include <logging/timer.h>
#include <net.h>
#include <net_processing.h>
#include <node/blockstorage.h>
#include <node/coinstats.h>
#include <node/context.h>
#include <node/utxo_snapshot.h>
#include <primitives/transaction.h>
#include <rpc/server.h>
#include <rpc/server_util.h>
#include <rpc/util.h>
#include <script/descriptor.h>
#include <serialize.h>
#include <streams.h>
#include <txdb.h>
#include <txmempool.h>
#include <undo.h>
#include <util/check.h>
#include <util/fs.h>
#include <util/strencodings.h>
#include <util/string.h>
#include <util/translation.h>
#include <validation.h>
#include <validationinterface.h>
#include <warnings.h>
#include <condition_variable>
#include <cstdint>
#include <memory>
#include <mutex>
#include <optional>

Include dependency graph for blockchain.cpp:

Classes
struct	CUpdatedBlock

struct	CompareBlocksByHeight
	Comparison function for sorting the getchaintips heads. More...

class	CoinsViewScanReserver

class	NetworkDisable
	RAII class that disables the network in its constructor and enables it in its destructor. More...

class	TemporaryRollback
	RAII class that temporarily rolls back the local chain in it's constructor and rolls it forward again in it's destructor. More...

Functions
static CUpdatedBlock latestblock	GUARDED_BY (cs_blockchange)

std::tuple< std::unique_ptr< CCoinsViewCursor >, CCoinsStats, const CBlockIndex * > PrepareUTXOSnapshot(Chainstate &chainstate, const std::function< void()> &interruption_point={}) EXCLUSIVE_LOCKS_REQUIRED(UniValue	WriteUTXOSnapshot (Chainstate &chainstate, CCoinsViewCursor pcursor, CCoinsStats maybe_stats, const CBlockIndex *tip, AutoFile &afile, const fs::path &path, const fs::path &temppath, const std::function< void()> &interruption_point={})

double	GetDifficulty (const CBlockIndex &blockindex)
	Calculate the difficulty for a given block index. More...

static int	ComputeNextBlockAndDepth (const CBlockIndex &tip, const CBlockIndex &blockindex, const CBlockIndex *&next)

static const CBlockIndex *	ParseHashOrHeight (const UniValue &param, ChainstateManager &chainman)

UniValue	blockheaderToJSON (const CBlockIndex &tip, const CBlockIndex &blockindex)
	Block header to JSON. More...

UniValue	blockToJSON (BlockManager &blockman, const CBlock &block, const CBlockIndex &tip, const CBlockIndex &blockindex, bool txDetails)
	Block description to JSON. More...

static RPCHelpMan	getblockcount ()

static RPCHelpMan	getbestblockhash ()

void	RPCNotifyBlockChange (const CBlockIndex *pindex)
	Callback for when block tip changed. More...

static RPCHelpMan	waitfornewblock ()

static RPCHelpMan	waitforblock ()

static RPCHelpMan	waitforblockheight ()

static RPCHelpMan	syncwithvalidationinterfacequeue ()

static RPCHelpMan	getdifficulty ()

static RPCHelpMan	getblockfrompeer ()

static RPCHelpMan	getblockhash ()

static RPCHelpMan	getblockheader ()

static CBlock	GetBlockChecked (BlockManager &blockman, const CBlockIndex &blockindex)

static CBlockUndo	GetUndoChecked (BlockManager &blockman, const CBlockIndex &blockindex)

static RPCHelpMan	getblock ()

std::optional< int >	GetPruneHeight (const BlockManager &blockman, const CChain &chain)

static RPCHelpMan	pruneblockchain ()

static CoinStatsHashType	ParseHashType (const std::string &hash_type_input)

static RPCHelpMan	gettxoutsetinfo ()

RPCHelpMan	gettxout ()

static RPCHelpMan	verifychain ()

RPCHelpMan	getblockchaininfo ()

static RPCHelpMan	getchaintips ()

static RPCHelpMan	preciousblock ()

static void	InvalidateBlock (ChainstateManager &chainman, avalanche::Processor *const avalanche, const BlockHash &block_hash)

static RPCHelpMan	invalidateblock ()

RPCHelpMan	parkblock ()

static void	ReconsiderBlock (ChainstateManager &chainman, avalanche::Processor *const avalanche, const BlockHash &block_hash)

static RPCHelpMan	reconsiderblock ()

RPCHelpMan	unparkblock ()

static RPCHelpMan	getchaintxstats ()

template<typename T >
static T	CalculateTruncatedMedian (std::vector< T > &scores)

template<typename T >
static bool	SetHasKeys (const std::set< T > &set)

template<typename T , typename Tk , typename... Args>
static bool	SetHasKeys (const std::set< T > &set, const Tk &key, const Args &...args)

static RPCHelpMan	getblockstats ()

static RPCHelpMan	scantxoutset ()

static RPCHelpMan	getblockfilter ()

static RPCHelpMan	dumptxoutset ()
	Serialize the UTXO set to a file for loading elsewhere. More...

std::tuple< std::unique_ptr< CCoinsViewCursor >, CCoinsStats, const CBlockIndex * >	PrepareUTXOSnapshot (Chainstate &chainstate, const std::function< void()> &interruption_point)

UniValue	CreateUTXOSnapshot (node::NodeContext &node, Chainstate &chainstate, AutoFile &afile, const fs::path &path, const fs::path &tmppath)
	Test-only helper to create UTXO snapshots given a chainstate and a file handle. More...

static RPCHelpMan	loadtxoutset ()

static RPCHelpMan	getchainstates ()

void	RegisterBlockchainRPCCommands (CRPCTable &t)

Variables
static GlobalMutex	cs_blockchange

static std::condition_variable	cond_blockchange

static constexpr size_t	PER_UTXO_OVERHEAD

static std::atomic< int >	g_scan_progress
	RAII object to prevent concurrency issue when scanning the txout set. More...

static std::atomic< bool >	g_scan_in_progress

static std::atomic< bool >	g_should_abort_scan

const std::vector< RPCResult >	RPCHelpForChainstate

Function Documentation

◆ blockheaderToJSON()

UniValue blockheaderToJSON	(	const CBlockIndex &	tip,
		const CBlockIndex &	blockindex
	)

Block header to JSON.

Definition at line 146 of file blockchain.cpp.

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◆ blockToJSON()

UniValue blockToJSON	(	BlockManager &	blockman,
		const CBlock &	block,
		const CBlockIndex &	tip,
		const CBlockIndex &	blockindex,
		bool	txDetails
	)

Block description to JSON.

Definition at line 180 of file blockchain.cpp.

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◆ CalculateTruncatedMedian()

template<typename T >

static T CalculateTruncatedMedian ( std::vector< T > & scores )

static

Definition at line 1981 of file blockchain.cpp.

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◆ ComputeNextBlockAndDepth()

static int ComputeNextBlockAndDepth	(	const CBlockIndex &	tip,
		const CBlockIndex &	blockindex,
		const CBlockIndex *&	next
	)

static

Definition at line 103 of file blockchain.cpp.

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◆ CreateUTXOSnapshot()

UniValue CreateUTXOSnapshot	(	node::NodeContext &	node,
		Chainstate &	chainstate,
		AutoFile &	afile,
		const fs::path &	path,
		const fs::path &	tmppath
	)

Test-only helper to create UTXO snapshots given a chainstate and a file handle.

Returns: a UniValue map containing metadata about the snapshot.

Definition at line 3046 of file blockchain.cpp.

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◆ dumptxoutset()

static RPCHelpMan dumptxoutset ( )

static

Serialize the UTXO set to a file for loading elsewhere.

See also: SnapshotMetadata

Definition at line 2707 of file blockchain.cpp.

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◆ getbestblockhash()

static RPCHelpMan getbestblockhash ( )

static

Definition at line 230 of file blockchain.cpp.

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◆ getblock()

static RPCHelpMan getblock ( )

static

Definition at line 693 of file blockchain.cpp.

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◆ getblockchaininfo()

RPCHelpMan getblockchaininfo ( )

Definition at line 1336 of file blockchain.cpp.

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◆ GetBlockChecked()

static CBlock GetBlockChecked	(	BlockManager &	blockman,
		const CBlockIndex &	blockindex
	)

static

Definition at line 652 of file blockchain.cpp.

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◆ getblockcount()

static RPCHelpMan getblockcount ( )

static

Definition at line 212 of file blockchain.cpp.

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◆ getblockfilter()

static RPCHelpMan getblockfilter ( )

static

Definition at line 2564 of file blockchain.cpp.

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◆ getblockfrompeer()

static RPCHelpMan getblockfrompeer ( )

static

Definition at line 473 of file blockchain.cpp.

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◆ getblockhash()

static RPCHelpMan getblockhash ( )

static

Definition at line 527 of file blockchain.cpp.

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◆ getblockheader()

static RPCHelpMan getblockheader ( )

static

Definition at line 556 of file blockchain.cpp.

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◆ getblockstats()

static RPCHelpMan getblockstats ( )

static

Definition at line 2008 of file blockchain.cpp.

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◆ getchainstates()

static RPCHelpMan getchainstates ( )

static

Definition at line 3177 of file blockchain.cpp.

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◆ getchaintips()

static RPCHelpMan getchaintips ( )

static

Idea: The set of chain tips is the active chain tip, plus orphan blocks which do not have another orphan building off of them. Algorithm:

Make one pass through BlockIndex(), picking out the orphan blocks, and also storing a set of the orphan block's pprev pointers.
Iterate through the orphan blocks. If the block isn't pointed to by another orphan, it is a chain tip.
Add the active chain tip

Definition at line 1461 of file blockchain.cpp.

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◆ getchaintxstats()

static RPCHelpMan getchaintxstats ( )

static

Definition at line 1859 of file blockchain.cpp.

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◆ getdifficulty()

static RPCHelpMan getdifficulty ( )

static

Definition at line 453 of file blockchain.cpp.

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◆ GetDifficulty()

double GetDifficulty ( const CBlockIndex & blockindex )

Calculate the difficulty for a given block index.

Get the required difficulty of the next block w/r/t the given block index.

Definition at line 87 of file blockchain.cpp.

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◆ GetPruneHeight()

std::optional< int > GetPruneHeight	(	const BlockManager &	blockman,
		const CChain &	chain
	)

Definition at line 831 of file blockchain.cpp.

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◆ gettxout()

RPCHelpMan gettxout ( )

Definition at line 1192 of file blockchain.cpp.

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◆ gettxoutsetinfo()

static RPCHelpMan gettxoutsetinfo ( )

static

Definition at line 957 of file blockchain.cpp.

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◆ GetUndoChecked()

static CBlockUndo GetUndoChecked	(	BlockManager &	blockman,
		const CBlockIndex &	blockindex
	)

static

Definition at line 674 of file blockchain.cpp.

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◆ GUARDED_BY()

static CUpdatedBlock latestblock GUARDED_BY ( cs_blockchange )

static

◆ invalidateblock()

static RPCHelpMan invalidateblock ( )

static

Definition at line 1657 of file blockchain.cpp.

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◆ InvalidateBlock()

static void InvalidateBlock	(	ChainstateManager &	chainman,
		avalanche::Processor *const	avalanche,
		const BlockHash &	block_hash
	)

static

Definition at line 1633 of file blockchain.cpp.

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◆ loadtxoutset()

static RPCHelpMan loadtxoutset ( )

static

Definition at line 3056 of file blockchain.cpp.

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◆ parkblock()

RPCHelpMan parkblock ( )

Definition at line 1684 of file blockchain.cpp.

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◆ ParseHashOrHeight()

static const CBlockIndex * ParseHashOrHeight	(	const UniValue &	param,
		ChainstateManager &	chainman
	)

static

Definition at line 114 of file blockchain.cpp.

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◆ ParseHashType()

static CoinStatsHashType ParseHashType ( const std::string & hash_type_input )

static

Definition at line 943 of file blockchain.cpp.

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◆ preciousblock()

static RPCHelpMan preciousblock ( )

static

Definition at line 1586 of file blockchain.cpp.

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◆ PrepareUTXOSnapshot()

std::tuple< std::unique_ptr< CCoinsViewCursor >, CCoinsStats, const CBlockIndex * > PrepareUTXOSnapshot	(	Chainstate &	chainstate,
		const std::function< void()> &	interruption_point
	)

Definition at line 2928 of file blockchain.cpp.

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◆ pruneblockchain()

static RPCHelpMan pruneblockchain ( )

static

Definition at line 869 of file blockchain.cpp.

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◆ reconsiderblock()

static RPCHelpMan reconsiderblock ( )

static

Definition at line 1763 of file blockchain.cpp.

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◆ ReconsiderBlock()

static void ReconsiderBlock	(	ChainstateManager &	chainman,
		avalanche::Processor *const	avalanche,
		const BlockHash &	block_hash
	)

static

Definition at line 1739 of file blockchain.cpp.

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◆ RegisterBlockchainRPCCommands()

void RegisterBlockchainRPCCommands ( CRPCTable & t )

Definition at line 3251 of file blockchain.cpp.

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◆ RPCNotifyBlockChange()

void RPCNotifyBlockChange ( const CBlockIndex * pindex )

Callback for when block tip changed.

Definition at line 248 of file blockchain.cpp.

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◆ scantxoutset()

static RPCHelpMan scantxoutset ( )

static

Definition at line 2337 of file blockchain.cpp.

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◆ SetHasKeys() [1/2]

template<typename T >

static bool SetHasKeys ( const std::set< T > & set )

inlinestatic

Definition at line 1995 of file blockchain.cpp.

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◆ SetHasKeys() [2/2]

template<typename T , typename Tk , typename... Args>

static bool SetHasKeys	(	const std::set< T > &	set,
		const Tk &	key,
		const Args &...	args
	)

inlinestatic

Definition at line 1999 of file blockchain.cpp.

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◆ syncwithvalidationinterfacequeue()

static RPCHelpMan syncwithvalidationinterfacequeue ( )

static

Definition at line 436 of file blockchain.cpp.

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◆ unparkblock()

RPCHelpMan unparkblock ( )

Definition at line 1792 of file blockchain.cpp.

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◆ verifychain()

static RPCHelpMan verifychain ( )

static

Definition at line 1296 of file blockchain.cpp.

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◆ waitforblock()

static RPCHelpMan waitforblock ( )

static

Definition at line 314 of file blockchain.cpp.

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◆ waitforblockheight()

static RPCHelpMan waitforblockheight ( )

static

Definition at line 376 of file blockchain.cpp.

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◆ waitfornewblock()

static RPCHelpMan waitfornewblock ( )

static

Definition at line 257 of file blockchain.cpp.

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◆ WriteUTXOSnapshot()

UniValue WriteUTXOSnapshot	(	Chainstate &	chainstate,
		CCoinsViewCursor *	pcursor,
		CCoinsStats *	maybe_stats,
		const CBlockIndex *	tip,
		AutoFile &	afile,
		const fs::path &	path,
		const fs::path &	temppath,
		const std::function< void()> &	interruption_point = `{}`
	)

Definition at line 2968 of file blockchain.cpp.

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Variable Documentation

◆ cond_blockchange

std::condition_variable cond_blockchange

static

Definition at line 69 of file blockchain.cpp.

◆ cs_blockchange

GlobalMutex cs_blockchange

static

Definition at line 68 of file blockchain.cpp.

◆ g_scan_in_progress

std::atomic<bool> g_scan_in_progress

static

Definition at line 2312 of file blockchain.cpp.

◆ g_scan_progress

std::atomic<int> g_scan_progress

static

RAII object to prevent concurrency issue when scanning the txout set.

Definition at line 2311 of file blockchain.cpp.

◆ g_should_abort_scan

std::atomic<bool> g_should_abort_scan

static

Definition at line 2313 of file blockchain.cpp.

◆ PER_UTXO_OVERHEAD

constexpr size_t PER_UTXO_OVERHEAD

staticconstexpr

Initial value:

=

sizeof(COutPoint) + sizeof(uint32_t) + sizeof(bool)

Definition at line 2005 of file blockchain.cpp.

◆ RPCHelpForChainstate

const std::vector<RPCResult> RPCHelpForChainstate

Initial value:

{
    {RPCResult::Type::NUM, "blocks", "number of blocks in this chainstate"},
    {RPCResult::Type::STR_HEX, "bestblockhash", "blockhash of the tip"},
    {RPCResult::Type::NUM, "difficulty", "difficulty of the tip"},
    {RPCResult::Type::NUM, "verificationprogress",
     "progress towards the network tip"},
    {RPCResult::Type::STR_HEX, "snapshot_blockhash", true,
     "the base block of the snapshot this chainstate is based on, if any"},
    {RPCResult::Type::NUM, "coins_db_cache_bytes", "size of the coinsdb cache"},
    {RPCResult::Type::NUM, "coins_tip_cache_bytes",
     "size of the coinstip cache"},
    {RPCResult::Type::BOOL, "validated",
     "whether the chainstate is fully validated. True if all blocks in the "
     "chainstate were validated, false if the chain is based on a snapshot and "
     "the snapshot has not yet been validated."},
 
}

Definition at line 3159 of file blockchain.cpp.

Classes

Functions

Variables

Function Documentation

◆ blockheaderToJSON()

◆ blockToJSON()

◆ CalculateTruncatedMedian()

◆ ComputeNextBlockAndDepth()

◆ CreateUTXOSnapshot()

◆ dumptxoutset()

◆ getbestblockhash()

◆ getblock()

◆ getblockchaininfo()

◆ GetBlockChecked()

◆ getblockcount()

◆ getblockfilter()

◆ getblockfrompeer()

◆ getblockhash()

◆ getblockheader()

◆ getblockstats()

◆ getchainstates()

◆ getchaintips()

◆ getchaintxstats()

◆ getdifficulty()

◆ GetDifficulty()

◆ GetPruneHeight()

◆ gettxout()

◆ gettxoutsetinfo()

◆ GetUndoChecked()

◆ GUARDED_BY()

◆ invalidateblock()

◆ InvalidateBlock()

◆ loadtxoutset()

◆ parkblock()

◆ ParseHashOrHeight()

◆ ParseHashType()

◆ preciousblock()

◆ PrepareUTXOSnapshot()

◆ pruneblockchain()

◆ reconsiderblock()

◆ ReconsiderBlock()

◆ RegisterBlockchainRPCCommands()

◆ RPCNotifyBlockChange()

◆ scantxoutset()

◆ SetHasKeys() [1/2]

◆ SetHasKeys() [2/2]

◆ syncwithvalidationinterfacequeue()

◆ unparkblock()

◆ verifychain()

◆ waitforblock()

◆ waitforblockheight()

◆ waitfornewblock()

◆ WriteUTXOSnapshot()

Variable Documentation

◆ cond_blockchange

◆ cs_blockchange

◆ g_scan_in_progress

◆ g_scan_progress

◆ g_should_abort_scan

◆ PER_UTXO_OVERHEAD

◆ RPCHelpForChainstate