main.h File Reference

#include "bignum.h"
#include "clientversion.h"
#include "chainparams.h"
#include "coins.h"
#include "core.h"
#include "net.h"
#include "script.h"
#include "sync.h"
#include "txmempool.h"
#include "uint256.h"
#include <algorithm>
#include <exception>
#include <map>
#include <set>
#include <stdint.h>
#include <string>
#include <utility>
#include <vector>

Include dependency graph for main.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	CNodeStateStats
struct	CDiskBlockPos
struct	CDiskTxPos
class	CBlockUndo
	Undo information for a CBlock. More...
class	CScriptCheck
	Closure representing one script verification Note that this stores references to the spending transaction. More...
class	CMerkleTx
	A transaction with a merkle branch linking it to the block chain. More...
class	CPartialMerkleTree
	Data structure that represents a partial merkle tree. More...
class	CBlockFileInfo
class	CBlockIndex
	The block chain is a tree shaped structure starting with the genesis block at the root, with each block potentially having multiple candidates to be the next block. More...
class	CDiskBlockIndex
	Used to marshal pointers into hashes for db storage. More...
class	CValidationState
	Capture information about block/transaction validation. More...
class	CChain
	An in-memory indexed chain of blocks. More...
struct	CBlockTemplate
class	CMerkleBlock
	Used to relay blocks as header + vector<merkle branch> to filtered nodes. More...
class	CWalletInterface

Enumerations
enum	GetMinFee_mode { GMF_RELAY, GMF_SEND }
enum	BlockStatus {   BLOCK_VALID_UNKNOWN = 0, BLOCK_VALID_HEADER = 1, BLOCK_VALID_TREE = 2, BLOCK_VALID_TRANSACTIONS = 3,   BLOCK_VALID_CHAIN = 4, BLOCK_VALID_SCRIPTS = 5, BLOCK_VALID_MASK = 7, BLOCK_HAVE_DATA = 8,   BLOCK_HAVE_UNDO = 16, BLOCK_HAVE_MASK = 24, BLOCK_FAILED_VALID = 32, BLOCK_FAILED_CHILD = 64,   BLOCK_FAILED_MASK = 96 }

Functions
void	RegisterWallet (CWalletInterface *pwalletIn)
	Register a wallet to receive updates from core. More...
void	UnregisterWallet (CWalletInterface *pwalletIn)
	Unregister a wallet from core. More...
void	UnregisterAllWallets ()
	Unregister all wallets from core. More...
void	SyncWithWallets (const uint256 &hash, const CTransaction &tx, const CBlock *pblock=NULL)
	Push an updated transaction to all registered wallets. More...
void	RegisterNodeSignals (CNodeSignals &nodeSignals)
	Register with a network node to receive its signals. More...
void	UnregisterNodeSignals (CNodeSignals &nodeSignals)
	Unregister a network node. More...
void	PushGetBlocks (CNode *pnode, CBlockIndex *pindexBegin, uint256 hashEnd)
bool	ProcessBlock (CValidationState &state, CNode *pfrom, CBlock *pblock, CDiskBlockPos *dbp=NULL)
	Process an incoming block. More...
bool	CheckDiskSpace (uint64_t nAdditionalBytes=0)
	Check whether enough disk space is available for an incoming block. More...
FILE *	OpenBlockFile (const CDiskBlockPos &pos, bool fReadOnly=false)
	Open a block file (blk?????.dat) More...
FILE *	OpenUndoFile (const CDiskBlockPos &pos, bool fReadOnly=false)
	Open an undo file (rev?????.dat) More...
bool	LoadExternalBlockFile (FILE *fileIn, CDiskBlockPos *dbp=NULL)
	Import blocks from an external file. More...
bool	InitBlockIndex ()
	Initialize a new block tree database + block data on disk. More...
bool	LoadBlockIndex ()
	Load the block tree and coins database from disk. More...
void	UnloadBlockIndex ()
	Unload database information. More...
bool	VerifyDB (int nCheckLevel, int nCheckDepth)
	Verify consistency of the block and coin databases. More...
void	PrintBlockTree ()
	Print the loaded block tree. More...
bool	ProcessMessages (CNode *pfrom)
	Process protocol messages received from a given node. More...
bool	SendMessages (CNode *pto, bool fSendTrickle)
	Send queued protocol messages to be sent to a give node. More...
void	ThreadScriptCheck ()
	Run an instance of the script checking thread. More...
bool	CheckProofOfWork (uint256 hash, unsigned int nBits)
	Check whether a block hash satisfies the proof-of-work requirement specified by nBits. More...
unsigned int	ComputeMinWork (unsigned int nBase, int64_t nTime)
	Calculate the minimum amount of work a received block needs, without knowing its direct parent. More...
bool	IsInitialBlockDownload ()
	Check whether we are doing an initial block download (synchronizing from disk or network) More...
std::string	GetWarnings (std::string strFor)
	Format a string that describes several potential problems detected by the core. More...
bool	GetTransaction (const uint256 &hash, CTransaction &tx, uint256 &hashBlock, bool fAllowSlow=false)
	Retrieve a transaction (from memory pool, or from disk, if possible) More...
bool	ActivateBestChain (CValidationState &state)
	Find the best known block, and make it the tip of the block chain. More...
int64_t	GetBlockValue (int nHeight, int64_t nFees)
unsigned int	GetNextWorkRequired (const CBlockIndex *pindexLast, const CBlockHeader *pblock)
void	UpdateTime (CBlockHeader &block, const CBlockIndex *pindexPrev)
CBlockIndex *	InsertBlockIndex (uint256 hash)
	Create a new block index entry for a given block hash. More...
bool	VerifySignature (const CCoins &txFrom, const CTransaction &txTo, unsigned int nIn, unsigned int flags, int nHashType)
	Verify a signature. More...
bool	AbortNode (const std::string &msg)
	Abort with a message. More...
bool	GetNodeStateStats (NodeId nodeid, CNodeStateStats &stats)
	Get statistics from node state. More...
void	Misbehaving (NodeId nodeid, int howmuch)
	Increase a node's misbehavior score. More...
bool	AcceptToMemoryPool (CTxMemPool &pool, CValidationState &state, const CTransaction &tx, bool fLimitFree, bool *pfMissingInputs, bool fRejectInsaneFee=false)
	(try to) add transaction to memory pool More...
int64_t	GetMinFee (const CTransaction &tx, unsigned int nBytes, bool fAllowFree, enum GetMinFee_mode mode)
bool	AreInputsStandard (const CTransaction &tx, CCoinsViewCache &mapInputs)
	Check for standard transaction types. More...
unsigned int	GetLegacySigOpCount (const CTransaction &tx)
	Count ECDSA signature operations the old-fashioned (pre-0.6) way. More...
unsigned int	GetP2SHSigOpCount (const CTransaction &tx, CCoinsViewCache &mapInputs)
	Count ECDSA signature operations in pay-to-script-hash inputs. More...
bool	AllowFree (double dPriority)
bool	CheckInputs (const CTransaction &tx, CValidationState &state, CCoinsViewCache &view, bool fScriptChecks=true, unsigned int flags=SCRIPT_VERIFY_P2SH|SCRIPT_VERIFY_STRICTENC, std::vector< CScriptCheck > *pvChecks=NULL)
void	UpdateCoins (const CTransaction &tx, CValidationState &state, CCoinsViewCache &inputs, CTxUndo &txundo, int nHeight, const uint256 &txhash)
bool	CheckTransaction (const CTransaction &tx, CValidationState &state)
bool	IsStandardTx (const CTransaction &tx, std::string &reason)
	Check for standard transaction types. More...
bool	IsFinalTx (const CTransaction &tx, int nBlockHeight=0, int64_t nBlockTime=0)
bool	WriteBlockToDisk (CBlock &block, CDiskBlockPos &pos)
	Functions for disk access for blocks. More...
bool	ReadBlockFromDisk (CBlock &block, const CDiskBlockPos &pos)
bool	ReadBlockFromDisk (CBlock &block, const CBlockIndex *pindex)
bool	DisconnectBlock (CBlock &block, CValidationState &state, CBlockIndex *pindex, CCoinsViewCache &coins, bool *pfClean=NULL)
	Functions for validating blocks and updating the block tree. More...
bool	ConnectBlock (CBlock &block, CValidationState &state, CBlockIndex *pindex, CCoinsViewCache &coins, bool fJustCheck=false)
bool	AddToBlockIndex (CBlock &block, CValidationState &state, const CDiskBlockPos &pos)
bool	CheckBlock (const CBlock &block, CValidationState &state, bool fCheckPOW=true, bool fCheckMerkleRoot=true)
bool	AcceptBlock (CBlock &block, CValidationState &state, CDiskBlockPos *dbp=NULL)

Variables
CScript	COINBASE_FLAGS
CCriticalSection	cs_main
CTxMemPool	mempool
std::map< uint256, CBlockIndex * >	mapBlockIndex
uint64_t	nLastBlockTx
uint64_t	nLastBlockSize
const std::string	strMessageMagic
int64_t	nTimeBestReceived
bool	fImporting
bool	fReindex
bool	fBenchmark
int	nScriptCheckThreads
bool	fTxIndex
unsigned int	nCoinCacheSize
CChain	chainActive
	The currently-connected chain of blocks. More...
CChain	chainMostWork
	The currently best known chain of headers (some of which may be invalid). More...
CCoinsViewCache *	pcoinsTip
	Global variable that points to the active CCoinsView (protected by cs_main) More...
CBlockTreeDB *	pblocktree
	Global variable that points to the active block tree (protected by cs_main) More...

Enumeration Type Documentation

enum BlockStatus

Enumerator
BLOCK_VALID_UNKNOWN
BLOCK_VALID_HEADER
BLOCK_VALID_TREE
BLOCK_VALID_TRANSACTIONS
BLOCK_VALID_CHAIN
BLOCK_VALID_SCRIPTS
BLOCK_VALID_MASK
BLOCK_HAVE_DATA
BLOCK_HAVE_UNDO
BLOCK_HAVE_MASK
BLOCK_FAILED_VALID
BLOCK_FAILED_CHILD
BLOCK_FAILED_MASK

Definition at line 675 of file main.h.

enum GetMinFee_mode

Enumerator
GMF_RELAY
GMF_SEND

Definition at line 268 of file main.h.

Function Documentation

bool AbortNode

(

const std::string &

msg

)

Abort with a message.

Definition at line 2687 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool AcceptBlock	(	CBlock &	block,
		CValidationState &	state,
		CDiskBlockPos *	dbp = NULL
	)

Definition at line 2295 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool AcceptToMemoryPool	(	CTxMemPool &	pool,
		CValidationState &	state,
		const CTransaction &	tx,
		bool	fLimitFree,
		bool *	pfMissingInputs,
		bool	fRejectInsaneFee = false
	)

(try to) add transaction to memory pool

Definition at line 878 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool ActivateBestChain

(

CValidationState &

state

)

Find the best known block, and make it the tip of the block chain.

Definition at line 2028 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool AddToBlockIndex	(	CBlock &	block,
		CValidationState &	state,
		const CDiskBlockPos &	pos
	)

Definition at line 2076 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool AllowFree ( double  dPriority )

inline

Definition at line 309 of file main.h.

Here is the caller graph for this function:

bool AreInputsStandard	(	const CTransaction &	tx,
		CCoinsViewCache &	mapInputs
	)

Check for standard transaction types.

Parameters

[in]

mapInputs

Map of previous transactions that have outputs we're spending

Returns

True if all inputs (scriptSigs) use only standard transaction forms

Definition at line 646 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool CheckBlock	(	const CBlock &	block,
		CValidationState &	state,
		bool	fCheckPOW = true,
		bool	fCheckMerkleRoot = true
	)

Definition at line 2229 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool CheckDiskSpace

(

uint64_t

nAdditionalBytes = 0

)

Check whether enough disk space is available for an incoming block.

Definition at line 2695 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool CheckInputs	(	const CTransaction &	tx,
		CValidationState &	state,
		CCoinsViewCache &	view,
		bool	fScriptChecks = true,
		unsigned int	flags = SCRIPT_VERIFY_P2SH|SCRIPT_VERIFY_STRICTENC,
		std::vector< CScriptCheck > *	pvChecks = NULL
	)

Definition at line 1454 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool CheckProofOfWork	(	uint256	hash,
		unsigned int	nBits
	)

Check whether a block hash satisfies the proof-of-work requirement specified by nBits.

Definition at line 243 of file main2.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool CheckTransaction	(	const CTransaction &	tx,
		CValidationState &	state
	)

Definition at line 783 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

unsigned int ComputeMinWork	(	unsigned int	nBase,
		int64_t	nTime
	)

Calculate the minimum amount of work a received block needs, without knowing its direct parent.

Definition at line 35 of file main2.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool ConnectBlock	(	CBlock &	block,
		CValidationState &	state,
		CBlockIndex *	pindex,
		CCoinsViewCache &	coins,
		bool	fJustCheck = false
	)

Definition at line 1669 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool DisconnectBlock	(	CBlock &	block,
		CValidationState &	state,
		CBlockIndex *	pindex,
		CCoinsViewCache &	coins,
		bool *	pfClean = NULL
	)

Functions for validating blocks and updating the block tree.

Undo the effects of this block (with given index) on the UTXO set represented by coins. In case pfClean is provided, operation will try to be tolerant about errors, and *pfClean will be true if no problems were found. Otherwise, the return value will be false in case of problems. Note that in any case, coins may be modified.

Definition at line 1543 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

int64_t GetBlockValue	(	int	nHeight,
		int64_t	nFees
	)

Definition at line 14 of file main2.cpp.

Here is the caller graph for this function:

unsigned int GetLegacySigOpCount

(

const CTransaction &

tx

)

Count ECDSA signature operations the old-fashioned (pre-0.6) way.

Returns

number of sigops this transaction's outputs will produce when spent

See also

CTransaction::FetchInputs

Definition at line 700 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

int64_t GetMinFee	(	const CTransaction &	tx,
		unsigned int	nBytes,
		bool	fAllowFree,
		enum GetMinFee_mode	mode
	)

Definition at line 847 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

unsigned int GetNextWorkRequired	(	const CBlockIndex *	pindexLast,
		const CBlockHeader *	pblock
	)

Definition at line 232 of file main2.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool GetNodeStateStats	(	NodeId	nodeid,
		CNodeStateStats &	stats
	)

Get statistics from node state.

Definition at line 344 of file main.cpp.

Here is the caller graph for this function:

unsigned int GetP2SHSigOpCount	(	const CTransaction &	tx,
		CCoinsViewCache &	mapInputs
	)

Count ECDSA signature operations in pay-to-script-hash inputs.

Parameters

[in]

mapInputs

Map of previous transactions that have outputs we're spending

Returns

maximum number of sigops required to validate this transaction's inputs

See also

CTransaction::FetchInputs

Definition at line 714 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool GetTransaction	(	const uint256 &	hash,
		CTransaction &	tx,
		uint256 &	hashBlock,
		bool	fAllowSlow = false
	)

Retrieve a transaction (from memory pool, or from disk, if possible)

Definition at line 1075 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

std::string GetWarnings

(

std::string

strFor

)

Format a string that describes several potential problems detected by the core.

bool InitBlockIndex

(

)

Initialize a new block tree database + block data on disk.

Definition at line 2903 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

CBlockIndex* InsertBlockIndex

(

uint256

hash

)

Create a new block index entry for a given block hash.

Definition at line 2737 of file main.cpp.

Here is the caller graph for this function:

bool IsFinalTx	(	const CTransaction &	tx,
		int	nBlockHeight = 0,
		int64_t	nBlockTime = 0
	)

Definition at line 617 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool IsInitialBlockDownload

(

)

Check whether we are doing an initial block download (synchronizing from disk or network)

Definition at line 1246 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool IsStandardTx	(	const CTransaction &	tx,
		std::string &	reason
	)

Check for standard transaction types.

Returns

True if all outputs (scriptPubKeys) use only standard transaction forms

bool LoadBlockIndex

(

)

Load the block tree and coins database from disk.

Definition at line 2894 of file main.cpp.

Here is the caller graph for this function:

bool LoadExternalBlockFile	(	FILE *	fileIn,
		CDiskBlockPos *	dbp = NULL
	)

Import blocks from an external file.

Definition at line 3007 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void Misbehaving	(	NodeId	nodeid,
		int	howmuch
	)

Increase a node's misbehavior score.

Definition at line 1346 of file main.cpp.

Here is the call graph for this function:

FILE* OpenBlockFile	(	const CDiskBlockPos &	pos,
		bool	fReadOnly = false
	)

Open a block file (blk?????.dat)

Definition at line 2729 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

FILE* OpenUndoFile	(	const CDiskBlockPos &	pos,
		bool	fReadOnly = false
	)

Open an undo file (rev?????.dat)

Definition at line 2733 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void PrintBlockTree

(

)

Print the loaded block tree.

Definition at line 2938 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool ProcessBlock	(	CValidationState &	state,
		CNode *	pfrom,
		CBlock *	pblock,
		CDiskBlockPos *	dbp = NULL
	)

Process an incoming block.

Definition at line 2431 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool ProcessMessages

(

CNode *

pfrom

)

Process protocol messages received from a given node.

Definition at line 4042 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void PushGetBlocks	(	CNode *	pnode,
		CBlockIndex *	pindexBegin,
		uint256	hashEnd
	)

Definition at line 2419 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool ReadBlockFromDisk	(	CBlock &	block,
		const CDiskBlockPos &	pos
	)

Definition at line 1171 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool ReadBlockFromDisk	(	CBlock &	block,
		const CBlockIndex *	pindex
	)

Definition at line 1195 of file main.cpp.

Here is the call graph for this function:

void RegisterNodeSignals

(

CNodeSignals &

nodeSignals

)

Register with a network node to receive its signals.

Definition at line 359 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void RegisterWallet

(

CWalletInterface *

pwalletIn

)

Register a wallet to receive updates from core.

Definition at line 156 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool SendMessages	(	CNode *	pto,
		bool	fSendTrickle
	)

Send queued protocol messages to be sent to a give node.

Definition at line 4163 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void SyncWithWallets	(	const uint256 &	hash,
		const CTransaction &	tx,
		const CBlock *	pblock = NULL
	)

Push an updated transaction to all registered wallets.

Definition at line 183 of file main.cpp.

Here is the caller graph for this function:

void ThreadScriptCheck

(

)

Run an instance of the script checking thread.

Definition at line 1664 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void UnloadBlockIndex

(

)

Unload database information.

Definition at line 2886 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void UnregisterAllWallets

(

)

Unregister all wallets from core.

Definition at line 174 of file main.cpp.

Here is the caller graph for this function:

void UnregisterNodeSignals

(

CNodeSignals &

nodeSignals

)

Unregister a network node.

Definition at line 368 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void UnregisterWallet

(

CWalletInterface *

pwalletIn

)

Unregister a wallet from core.

Definition at line 165 of file main.cpp.

Here is the call graph for this function:

void UpdateCoins	(	const CTransaction &	tx,
		CValidationState &	state,
		CCoinsViewCache &	inputs,
		CTxUndo &	txundo,
		int	nHeight,
		const uint256 &	txhash
	)

Definition at line 1423 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void UpdateTime	(	CBlockHeader &	block,
		const CBlockIndex *	pindexPrev
	)

Definition at line 1404 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool VerifyDB	(	int	nCheckLevel,
		int	nCheckDepth
	)

Verify consistency of the block and coin databases.

Definition at line 2812 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

bool VerifySignature	(	const CCoins &	txFrom,
		const CTransaction &	txTo,
		unsigned int	nIn,
		unsigned int	flags,
		int	nHashType
	)

Verify a signature.

Definition at line 1449 of file main.cpp.

bool WriteBlockToDisk	(	CBlock &	block,
		CDiskBlockPos &	pos
	)

Functions for disk access for blocks.

Definition at line 1145 of file main.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

CChain chainActive

The currently-connected chain of blocks.

Definition at line 43 of file main.cpp.

CChain chainMostWork

The currently best known chain of headers (some of which may be invalid).

Definition at line 44 of file main.cpp.

CScript COINBASE_FLAGS

Definition at line 75 of file main.cpp.

CCriticalSection cs_main

Definition at line 38 of file main.cpp.

bool fBenchmark

Definition at line 49 of file main.cpp.

bool fImporting

Definition at line 47 of file main.cpp.

bool fReindex

Definition at line 48 of file main.cpp.

bool fTxIndex

Definition at line 50 of file main.cpp.

std::map<uint256, CBlockIndex*> mapBlockIndex

Definition at line 42 of file main.cpp.

CTxMemPool mempool

Definition at line 40 of file main.cpp.

unsigned int nCoinCacheSize

Definition at line 51 of file main.cpp.

uint64_t nLastBlockSize

Definition at line 87 of file miner.cpp.

uint64_t nLastBlockTx

Definition at line 86 of file miner.cpp.

int nScriptCheckThreads

Definition at line 46 of file main.cpp.

int64_t nTimeBestReceived

Definition at line 45 of file main.cpp.

CBlockTreeDB* pblocktree

Global variable that points to the active block tree (protected by cs_main)

Definition at line 437 of file main.cpp.

CCoinsViewCache* pcoinsTip

Global variable that points to the active CCoinsView (protected by cs_main)

Definition at line 436 of file main.cpp.

const std::string strMessageMagic

Definition at line 77 of file main.cpp.