#include <rpc/blockchain.h>
#include <blockfilter.h>
#include <chain.h>
#include <chainparams.h>
#include <coins.h>
#include <consensus/amount.h>
#include <consensus/params.h>
#include <consensus/validation.h>
#include <core_io.h>
#include <deploymentinfo.h>
#include <deploymentstatus.h>
#include <fs.h>
#include <hash.h>
#include <index/blockfilterindex.h>
#include <index/coinstatsindex.h>
#include <kernel/coinstats.h>
#include <logging/timer.h>
#include <net.h>
#include <net_processing.h>
#include <node/blockstorage.h>
#include <node/context.h>
#include <node/transaction.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 <streams.h>
#include <sync.h>
#include <txdb.h>
#include <txmempool.h>
#include <undo.h>
#include <univalue.h>
#include <util/check.h>
#include <util/strencodings.h>
#include <util/system.h>
#include <util/translation.h>
#include <validation.h>
#include <validationinterface.h>
#include <versionbits.h>
#include <warnings.h>
#include <stdint.h>
#include <condition_variable>
#include <memory>
#include <mutex>

Include dependency graph for blockchain.cpp:

Classes
struct	CUpdatedBlock

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

class	CoinsViewScanReserver

class	BlockFiltersScanReserver

Functions
static CUpdatedBlock latestblock	GUARDED_BY (cs_blockchange)

double	GetDifficulty (const CBlockIndex *blockindex)
	Get the difficulty of the net wrt to the 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, TxVerbosity verbosity)
	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 *pblockindex)

static CBlockUndo	GetUndoChecked (BlockManager &blockman, const CBlockIndex *pblockindex)

static RPCHelpMan	getblock ()

static RPCHelpMan	pruneblockchain ()

CoinStatsHashType	ParseHashType (const std::string &hash_type_input)

static std::optional< kernel::CCoinsStats >	GetUTXOStats (CCoinsView view, node::BlockManager &blockman, kernel::CoinStatsHashType hash_type, const std::function< void()> &interruption_point={}, const CBlockIndex pindex=nullptr, bool index_requested=true)
	Calculate statistics about the unspent transaction output set. More...

static RPCHelpMan	gettxoutsetinfo ()

static RPCHelpMan	gettxout ()

static RPCHelpMan	verifychain ()

static void	SoftForkDescPushBack (const CBlockIndex *blockindex, UniValue &softforks, const ChainstateManager &chainman, Consensus::BuriedDeployment dep)

static void	SoftForkDescPushBack (const CBlockIndex *blockindex, UniValue &softforks, const ChainstateManager &chainman, Consensus::DeploymentPos id)

RPCHelpMan	getblockchaininfo ()

RPCHelpMan	getdeploymentinfo ()

static RPCHelpMan	getchaintips ()

static RPCHelpMan	preciousblock ()

static RPCHelpMan	invalidateblock ()

static RPCHelpMan	reconsiderblock ()

static RPCHelpMan	getchaintxstats ()

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

void	CalculatePercentilesByWeight (CAmount result[NUM_GETBLOCKSTATS_PERCENTILES], std::vector< std::pair< CAmount, int64_t >> &scores, int64_t total_weight)
	Used by getblockstats to get feerates at different percentiles by weight More...

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 bool	CheckBlockFilterMatches (BlockManager &blockman, const CBlockIndex &blockindex, const GCSFilter::ElementSet &needles)

static RPCHelpMan	scanblocks ()

static RPCHelpMan	getblockfilter ()

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

UniValue	CreateUTXOSnapshot (NodeContext &node, Chainstate &chainstate, AutoFile &afile, const fs::path &path, const fs::path &temppath)
	Helper to create UTXO snapshots given a chainstate and a file handle. More...

void	RegisterBlockchainRPCCommands (CRPCTable &t)

Variables
static GlobalMutex	cs_blockchange

static std::condition_variable	cond_blockchange

const RPCResult	getblock_vin

static constexpr size_t	PER_UTXO_OVERHEAD = sizeof(COutPoint) + sizeof(uint32_t) + sizeof(bool)

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

static const auto	scan_action_arg_desc

static const auto	scan_objects_arg_desc

static const auto	scan_result_abort

static const auto	scan_result_status_none

static const auto	scan_result_status_some

static std::atomic< int >	g_scanfilter_progress
	RAII object to prevent concurrency issue when scanning blockfilters. More...

static std::atomic< int >	g_scanfilter_progress_height

static std::atomic< bool >	g_scanfilter_in_progress

static std::atomic< bool >	g_scanfilter_should_abort_scan

Function Documentation

◆ blockheaderToJSON()

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

Block header to JSON.

Definition at line 137 of file blockchain.cpp.

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◆ blockToJSON()

UniValue blockToJSON	(	BlockManager &	blockman,
		const CBlock &	block,
		const CBlockIndex *	tip,
		const CBlockIndex *	blockindex,
		TxVerbosity	verbosity
	)

Block description to JSON.

Definition at line 166 of file blockchain.cpp.

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◆ CalculatePercentilesByWeight()

void CalculatePercentilesByWeight	(	CAmount	result[NUM_GETBLOCKSTATS_PERCENTILES],
		std::vector< std::pair< CAmount, int64_t >> &	scores,
		int64_t	total_weight
	)

Used by getblockstats to get feerates at different percentiles by weight

Definition at line 1700 of file blockchain.cpp.

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◆ CalculateTruncatedMedian()

template<typename T >

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

static

Definition at line 1685 of file blockchain.cpp.

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◆ CheckBlockFilterMatches()

static bool CheckBlockFilterMatches	(	BlockManager &	blockman,
		const CBlockIndex &	blockindex,
		const GCSFilter::ElementSet &	needles
	)

static

Definition at line 2278 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 99 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
	)

Helper to create UTXO snapshots given a chainstate and a file handle.

Returns: a UniValue map containing metadata about the snapshot.

Definition at line 2630 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 2574 of file blockchain.cpp.

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◆ getbestblockhash()

static RPCHelpMan getbestblockhash ( )

static

Definition at line 225 of file blockchain.cpp.

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◆ getblock()

static RPCHelpMan getblock ( )

static

Definition at line 645 of file blockchain.cpp.

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◆ getblockchaininfo()

RPCHelpMan getblockchaininfo ( )

Definition at line 1221 of file blockchain.cpp.

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◆ GetBlockChecked()

static CBlock GetBlockChecked	(	BlockManager &	blockman,
		const CBlockIndex *	pblockindex
	)

static

Definition at line 580 of file blockchain.cpp.

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◆ getblockcount()

static RPCHelpMan getblockcount ( )

static

Definition at line 204 of file blockchain.cpp.

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◆ getblockfilter()

static RPCHelpMan getblockfilter ( )

static

Definition at line 2490 of file blockchain.cpp.

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◆ getblockfrompeer()

static RPCHelpMan getblockfrompeer ( )

static

Definition at line 427 of file blockchain.cpp.

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◆ getblockhash()

static RPCHelpMan getblockhash ( )

static

Definition at line 481 of file blockchain.cpp.

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◆ getblockheader()

static RPCHelpMan getblockheader ( )

static

Definition at line 510 of file blockchain.cpp.

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◆ getblockstats()

static RPCHelpMan getblockstats ( )

static

Definition at line 1740 of file blockchain.cpp.

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◆ getchaintips()

static RPCHelpMan getchaintips ( )

static

Definition at line 1385 of file blockchain.cpp.

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◆ getchaintxstats()

static RPCHelpMan getchaintxstats ( )

static

Definition at line 1604 of file blockchain.cpp.

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◆ getdeploymentinfo()

RPCHelpMan getdeploymentinfo ( )

Definition at line 1327 of file blockchain.cpp.

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◆ getdifficulty()

static RPCHelpMan getdifficulty ( )

static

Definition at line 407 of file blockchain.cpp.

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◆ GetDifficulty()

double GetDifficulty ( const CBlockIndex * blockindex )

Get the difficulty of the net wrt to the given block index.

Returns: A floating point number that is a multiple of the main net minimum difficulty (4295032833 hashes).

Definition at line 77 of file blockchain.cpp.

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◆ gettxout()

static RPCHelpMan gettxout ( )

static

Definition at line 1022 of file blockchain.cpp.

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◆ gettxoutsetinfo()

static RPCHelpMan gettxoutsetinfo ( )

static

Definition at line 867 of file blockchain.cpp.

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◆ GetUndoChecked()

static CBlockUndo GetUndoChecked	(	BlockManager &	blockman,
		const CBlockIndex *	pblockindex
	)

static

Definition at line 600 of file blockchain.cpp.

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◆ GetUTXOStats()

static std::optional<kernel::CCoinsStats> GetUTXOStats	(	CCoinsView *	view,
		node::BlockManager &	blockman,
		kernel::CoinStatsHashType	hash_type,
		const std::function< void()> &	interruption_point = `{}`,
		const CBlockIndex *	pindex = `nullptr`,
		bool	index_requested = `true`
	)

static

Calculate statistics about the unspent transaction output set.

Parameters

[in] index_requested Signals if the coinstatsindex should be used (when available).

Definition at line 842 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 1523 of file blockchain.cpp.

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◆ ParseHashOrHeight()

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

static

Definition at line 109 of file blockchain.cpp.

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◆ ParseHashType()

CoinStatsHashType ParseHashType ( const std::string & hash_type_input )

Definition at line 824 of file blockchain.cpp.

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◆ preciousblock()

static RPCHelpMan preciousblock ( )

static

Definition at line 1483 of file blockchain.cpp.

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◆ pruneblockchain()

static RPCHelpMan pruneblockchain ( )

static

Definition at line 764 of file blockchain.cpp.

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◆ reconsiderblock()

static RPCHelpMan reconsiderblock ( )

static

Definition at line 1564 of file blockchain.cpp.

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◆ RegisterBlockchainRPCCommands()

void RegisterBlockchainRPCCommands ( CRPCTable & t )

Definition at line 2704 of file blockchain.cpp.

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◆ RPCNotifyBlockChange()

void RPCNotifyBlockChange ( const CBlockIndex * pindex )

Callback for when block tip changed.

Definition at line 245 of file blockchain.cpp.

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◆ scanblocks()

static RPCHelpMan scanblocks ( )

static

Definition at line 2303 of file blockchain.cpp.

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◆ scantxoutset()

static RPCHelpMan scantxoutset ( )

static

Definition at line 2095 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 1730 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 1732 of file blockchain.cpp.

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◆ SoftForkDescPushBack() [1/2]

static void SoftForkDescPushBack	(	const CBlockIndex *	blockindex,
		UniValue &	softforks,
		const ChainstateManager &	chainman,
		Consensus::BuriedDeployment	dep
	)

static

Definition at line 1134 of file blockchain.cpp.

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◆ SoftForkDescPushBack() [2/2]

static void SoftForkDescPushBack	(	const CBlockIndex *	blockindex,
		UniValue &	softforks,
		const ChainstateManager &	chainman,
		Consensus::DeploymentPos	id
	)

static

Definition at line 1149 of file blockchain.cpp.

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◆ syncwithvalidationinterfacequeue()

static RPCHelpMan syncwithvalidationinterfacequeue ( )

static

Definition at line 389 of file blockchain.cpp.

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◆ verifychain()

static RPCHelpMan verifychain ( )

static

Definition at line 1104 of file blockchain.cpp.

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◆ waitforblock()

static RPCHelpMan waitforblock ( )

static

Definition at line 297 of file blockchain.cpp.

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◆ waitforblockheight()

static RPCHelpMan waitforblockheight ( )

static

Definition at line 343 of file blockchain.cpp.

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◆ waitfornewblock()

static RPCHelpMan waitfornewblock ( )

static

Definition at line 255 of file blockchain.cpp.

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Variable Documentation

◆ cond_blockchange

std::condition_variable cond_blockchange

static

Definition at line 72 of file blockchain.cpp.

◆ cs_blockchange

GlobalMutex cs_blockchange

static

Definition at line 71 of file blockchain.cpp.

◆ g_scan_in_progress

std::atomic<bool> g_scan_in_progress

static

Definition at line 2034 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 2033 of file blockchain.cpp.

◆ g_scanfilter_in_progress

std::atomic<bool> g_scanfilter_in_progress

static

Definition at line 2253 of file blockchain.cpp.

◆ g_scanfilter_progress

std::atomic<int> g_scanfilter_progress

static

RAII object to prevent concurrency issue when scanning blockfilters.

Definition at line 2251 of file blockchain.cpp.

◆ g_scanfilter_progress_height

std::atomic<int> g_scanfilter_progress_height

static

Definition at line 2252 of file blockchain.cpp.

◆ g_scanfilter_should_abort_scan

std::atomic<bool> g_scanfilter_should_abort_scan

static

Definition at line 2254 of file blockchain.cpp.

◆ g_should_abort_scan

std::atomic<bool> g_should_abort_scan

static

Definition at line 2035 of file blockchain.cpp.

◆ getblock_vin

const RPCResult getblock_vin

Initial value:

{
    RPCResult::Type::ARR, "vin", "",
    {
        {RPCResult::Type::OBJ, "", "",
        {
            {RPCResult::Type::ELISION, "", "The same output as verbosity = 2"},
            {RPCResult::Type::OBJ, "prevout", "(Only if undo information is available)",
            {
                {RPCResult::Type::BOOL, "generated", "Coinbase or not"},
                {RPCResult::Type::NUM, "height", "The height of the prevout"},
                {RPCResult::Type::STR_AMOUNT, "value", "The value in " + CURRENCY_UNIT},
                {RPCResult::Type::OBJ, "scriptPubKey", "",
                {
                    {RPCResult::Type::STR, "asm", "Disassembly of the public key script"},
                    {RPCResult::Type::STR, "desc", "Inferred descriptor for the output"},
                    {RPCResult::Type::STR_HEX, "hex", "The raw public key script bytes, hex-encoded"},
                    {RPCResult::Type::STR, "address", true, "The Bitcoin address (only if a well-defined address exists)"},
                    {RPCResult::Type::STR, "type", "The type (one of: " + GetAllOutputTypes() + ")"},
                }},
            }},
        }},
    }
}

Definition at line 621 of file blockchain.cpp.

◆ PER_UTXO_OVERHEAD

constexpr size_t PER_UTXO_OVERHEAD = sizeof(COutPoint) + sizeof(uint32_t) + sizeof(bool)

staticconstexpr

Definition at line 1738 of file blockchain.cpp.

◆ scan_action_arg_desc

const auto scan_action_arg_desc

static

Initial value:

= RPCArg{
    "action", RPCArg::Type::STR, RPCArg::Optional::NO, "The action to execute\n"
        "\"start\" for starting a scan\n"
        "\"abort\" for aborting the current scan (returns true when abort was successful)\n"
        "\"status\" for progress report (in %) of the current scan"
}

Definition at line 2061 of file blockchain.cpp.

◆ scan_objects_arg_desc

const auto scan_objects_arg_desc

static

Initial value:

= RPCArg{
    "scanobjects", RPCArg::Type::ARR, RPCArg::Optional::OMITTED, "Array of scan objects. Required for \"start\" action\n"
        "Every scan object is either a string descriptor or an object:",
    {
        {"descriptor", RPCArg::Type::STR, RPCArg::Optional::OMITTED, "An output descriptor"},
        {"", RPCArg::Type::OBJ, RPCArg::Optional::OMITTED, "An object with output descriptor and metadata",
            {
                {"desc", RPCArg::Type::STR, RPCArg::Optional::NO, "An output descriptor"},
                {"range", RPCArg::Type::RANGE, RPCArg::Default{1000}, "The range of HD chain indexes to explore (either end or [begin,end])"},
            }},
    },
    RPCArgOptions{.oneline_description="[scanobjects,...]"},
}

Definition at line 2068 of file blockchain.cpp.

◆ scan_result_abort

const auto scan_result_abort

static

Initial value:

= RPCResult{
    "when action=='abort'", RPCResult::Type::BOOL, "success",
    "True if scan will be aborted (not necessarily before this RPC returns), or false if there is no scan to abort"
}

Definition at line 2082 of file blockchain.cpp.

◆ scan_result_status_none

const auto scan_result_status_none

static

Initial value:

= RPCResult{
    "when action=='status' and no scan is in progress - possibly already completed", RPCResult::Type::NONE, "", ""
}

Definition at line 2086 of file blockchain.cpp.

◆ scan_result_status_some

const auto scan_result_status_some

static

Initial value:

= RPCResult{
    "when action=='status' and a scan is currently in progress", RPCResult::Type::OBJ, "", "",
    {{RPCResult::Type::NUM, "progress", "Approximate percent complete"},}
}

Definition at line 2089 of file blockchain.cpp.

Classes

Functions

Variables

Function Documentation

◆ blockheaderToJSON()

◆ blockToJSON()

◆ CalculatePercentilesByWeight()

◆ CalculateTruncatedMedian()

◆ CheckBlockFilterMatches()

◆ ComputeNextBlockAndDepth()

◆ CreateUTXOSnapshot()

◆ dumptxoutset()

◆ getbestblockhash()

◆ getblock()

◆ getblockchaininfo()

◆ GetBlockChecked()

◆ getblockcount()

◆ getblockfilter()

◆ getblockfrompeer()

◆ getblockhash()

◆ getblockheader()

◆ getblockstats()

◆ getchaintips()

◆ getchaintxstats()

◆ getdeploymentinfo()

◆ getdifficulty()

◆ GetDifficulty()

◆ gettxout()

◆ gettxoutsetinfo()

◆ GetUndoChecked()

◆ GetUTXOStats()

◆ GUARDED_BY()

◆ invalidateblock()

◆ ParseHashOrHeight()

◆ ParseHashType()

◆ preciousblock()

◆ pruneblockchain()

◆ reconsiderblock()

◆ RegisterBlockchainRPCCommands()

◆ RPCNotifyBlockChange()

◆ scanblocks()

◆ scantxoutset()

◆ SetHasKeys() [1/2]

◆ SetHasKeys() [2/2]

◆ SoftForkDescPushBack() [1/2]

◆ SoftForkDescPushBack() [2/2]

◆ syncwithvalidationinterfacequeue()

◆ verifychain()

◆ waitforblock()

◆ waitforblockheight()

◆ waitfornewblock()

Variable Documentation

◆ cond_blockchange

◆ cs_blockchange

◆ g_scan_in_progress

◆ g_scan_progress

◆ g_scanfilter_in_progress

◆ g_scanfilter_progress

◆ g_scanfilter_progress_height

◆ g_scanfilter_should_abort_scan

◆ g_should_abort_scan

◆ getblock_vin

◆ PER_UTXO_OVERHEAD

◆ scan_action_arg_desc

◆ scan_objects_arg_desc

◆ scan_result_abort

◆ scan_result_status_none

◆ scan_result_status_some