avalanche Namespace Reference

Classes
class	CompactProofs
struct	Config
struct	ConflictingProofComparator
	Compare conflicting proofs. More...
class	Delegation
class	DelegationBuilder
struct	DelegationId
class	DelegationState
class	Hello
struct	LimitedProofId
struct	ManualWinners
struct	next_request_time
struct	Node
struct	Peer
class	PeerManager
struct	PendingNode
class	Poll
struct	PrefilledProof
class	Processor
class	Proof
struct	proof_index
class	ProofBuilder
struct	ProofComparatorByScore
	Compare proofs by score, then by id in case of equality. More...
struct	ProofId
class	ProofPool
	Map a proof to each utxo. More...
struct	ProofPoolEntry
struct	ProofPoolEntryProofIdKeyExtractor
struct	ProofRadixTreeAdapter
	Radix tree adapter for storing a proof as a tree element. More...
struct	ProofRefComparatorByAddress
	Compare proof references by pointer address. More...
struct	ProofRefCompare
class	ProofRegistrationState
class	ProofsRequest
class	ProofValidationState
struct	query_timeout
struct	RemoteProof
class	Response
class	SaltedProofHasher
class	SaltedProofIdHasher
struct	score_index
struct	ShortIdProcessorPrefilledProofAdapter
class	SignedStake
struct	Slot
class	Stake
struct	StakeCommitment
class	StakeContenderCache
	Cache to track stake contenders for recent blocks. More...
struct	StakeContenderCacheEntry
struct	StakeContenderId
	StakeContenderIds are unique for each block to ensure that the peer polling for their acceptance has strong guarantees that a newly finalizing block does not disrupt determining if the previous block had valid stake winners. More...
struct	stakecontenderid_index
struct	TestProofBuilder
struct	TestVoteRecord
class	Vote
class	VoteItemUpdate
struct	VoteMapComparator
struct	VoteRecord
	Vote history. More...

Typedefs
using	ProofShortIdProcessor = ShortIdProcessor< PrefilledProof, ShortIdProcessorPrefilledProofAdapter, ProofRefCompare >
using	AnyVoteItem = std::variant< const ProofRef, const CBlockIndex *, const CTransactionRef >
using	VoteMap = std::map< AnyVoteItem, VoteRecord, VoteMapComparator >
using	StakeId = uint256
using	ProofRef = RCUPtr< const Proof >
using	ProofIdSet = std::unordered_set< ProofId, SaltedProofIdHasher >

Enumerations
enum class	ProofRegistrationResult {   NONE = 0 , ALREADY_REGISTERED , IMMATURE , INVALID ,   CONFLICTING , REJECTED , COOLDOWN_NOT_ELAPSED , DANGLING ,   MISSING_UTXO }
enum struct	VoteStatus : uint8_t {   Invalid , Rejected , Accepted , Finalized ,   Stale }
enum	StakeContenderStatus : uint8_t { UNKNOWN = 0 , ACCEPTED = (1 << 0) , IN_WINNER_SET = (1 << 1) }
enum class	ProofValidationResult {   NONE = 0 , NO_STAKE , DUST_THRESHOLD , DUPLICATE_STAKE ,   WRONG_STAKE_ORDERING , INVALID_STAKE_SIGNATURE , TOO_MANY_UTXOS , INVALID_PAYOUT_SCRIPT ,   INVALID_PROOF_SIGNATURE , EXPIRED , MISSING_UTXO , COINBASE_MISMATCH ,   HEIGHT_MISMATCH , AMOUNT_MISMATCH , NON_STANDARD_DESTINATION , DESTINATION_NOT_SUPPORTED ,   DESTINATION_MISMATCH , IMMATURE_UTXO }
enum class	DelegationResult { NONE = 0 , INVALID_SIGNATURE , TOO_MANY_LEVELS }

Functions
template<typename L , typename F >
static bool	reduceLevels (uint256 &hash, const std::vector< L > &levels, F f)
template<typename L >
static bool	reduceLevels (uint256 &hash, const std::vector< L > &levels)
static bool	isImmatureState (const ProofValidationState &state)
PeerId	selectPeerImpl (const std::vector< Slot > &slots, const uint64_t slot, const uint64_t max)
	Internal methods that are exposed for testing purposes.
static const uint256	GetVoteItemId (const AnyVoteItem &item)
static bool	VerifyProof (const Amount &stakeUtxoDustThreshold, const Proof &proof, bilingual_str &error)
static bool	VerifyDelegation (const Delegation &dg, const CPubKey &expectedPubKey, bilingual_str &error)
static bool	isNull (const AnyVoteItem &item)
static bool	IsStandardPayoutScript (const CScript &scriptPubKey)
ProofRef	buildRandomProof (Chainstate &active_chainstate, uint32_t score, int height, const CKey &masterKey)
bool	hasDustStake (const ProofRef &proof)

Variables
constexpr size_t	MAX_DELEGATION_LEVELS {20}
	The maximum number of delegation levels we are willing to verify.
static constexpr uint64_t	PEERS_DUMP_VERSION {1}
static constexpr uint32_t	AVALANCHE_MAX_IMMATURE_PROOFS = 4000
	Maximum number of immature proofs the peer manager will accept from the network.
static constexpr Amount	PROOF_DUST_THRESHOLD = 100 * COIN
	Minimum amount per utxo.
constexpr uint32_t	MIN_VALID_PROOF_SCORE = 100 * PROOF_DUST_THRESHOLD / COIN
const CScript	UNSPENDABLE_ECREG_PAYOUT_SCRIPT

Typedef Documentation

AnyVoteItem

using avalanche::AnyVoteItem = typedef std::variant<const ProofRef, const CBlockIndex *, const CTransactionRef>

Definition at line 87 of file processor.h.

ProofIdSet

using avalanche::ProofIdSet = typedef std::unordered_set<ProofId, SaltedProofIdHasher>

Definition at line 52 of file proofpool.h.

ProofRef

using avalanche::ProofRef = typedef RCUPtr<const Proof>

Definition at line 185 of file proof.h.

ProofShortIdProcessor

using avalanche::ProofShortIdProcessor = typedef ShortIdProcessor<PrefilledProof, ShortIdProcessorPrefilledProofAdapter, ProofRefCompare>

Definition at line 50 of file compactproofs.h.

StakeId

using avalanche::StakeId = typedef uint256

Definition at line 44 of file proof.h.

VoteMap

using avalanche::VoteMap = typedef std::map<AnyVoteItem, VoteRecord, VoteMapComparator>

Definition at line 139 of file processor.h.

Enumeration Type Documentation

DelegationResult

enum class avalanche::DelegationResult

strong

Enumerator
NONE
INVALID_SIGNATURE
TOO_MANY_LEVELS

Definition at line 37 of file validation.h.

ProofRegistrationResult

enum class avalanche::ProofRegistrationResult

strong

Enumerator
NONE
ALREADY_REGISTERED
IMMATURE
INVALID
CONFLICTING
REJECTED
COOLDOWN_NOT_ELAPSED
DANGLING
MISSING_UTXO

Definition at line 145 of file peermanager.h.

ProofValidationResult

enum class avalanche::ProofValidationResult

strong

Enumerator
NONE
NO_STAKE
DUST_THRESHOLD
DUPLICATE_STAKE
WRONG_STAKE_ORDERING
INVALID_STAKE_SIGNATURE
TOO_MANY_UTXOS
INVALID_PAYOUT_SCRIPT
INVALID_PROOF_SIGNATURE
EXPIRED
MISSING_UTXO
COINBASE_MISMATCH
HEIGHT_MISMATCH
AMOUNT_MISMATCH
NON_STANDARD_DESTINATION
DESTINATION_NOT_SUPPORTED
DESTINATION_MISMATCH
IMMATURE_UTXO

Definition at line 12 of file validation.h.

StakeContenderStatus

enum avalanche::StakeContenderStatus : uint8_t

Enumerator
UNKNOWN
ACCEPTED
IN_WINNER_SET

Definition at line 25 of file stakecontendercache.h.

VoteStatus

enum struct avalanche::VoteStatus : uint8_t

strong

Enumerator
Invalid
Rejected
Accepted
Finalized
Stale

Definition at line 79 of file processor.h.

Function Documentation

buildRandomProof()

ProofRef avalanche::buildRandomProof	(	Chainstate &	active_chainstate,
		uint32_t	score,
		int	height,
		const CKey &	masterKey
	)

Definition at line 20 of file util.cpp.

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GetVoteItemId()

static const uint256 avalanche::GetVoteItemId ( const AnyVoteItem &  item )

static

Definition at line 39 of file processor.cpp.

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hasDustStake()

bool avalanche::hasDustStake

(

const ProofRef &

proof

)

Definition at line 41 of file util.cpp.

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isImmatureState()

static bool avalanche::isImmatureState ( const ProofValidationState &  state )

static

Definition at line 202 of file peermanager.cpp.

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isNull()

static bool avalanche::isNull ( const AnyVoteItem &  item )

static

Definition at line 412 of file processor.cpp.

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IsStandardPayoutScript()

static bool avalanche::IsStandardPayoutScript ( const CScript &  scriptPubKey )

static

Definition at line 111 of file proof.cpp.

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reduceLevels() [1/2]

template<typename L >

static bool avalanche::reduceLevels ( uint256 &  hash, const std::vector< L > &  levels  )

static

Definition at line 52 of file delegation.cpp.

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reduceLevels() [2/2]

template<typename L , typename F >

static bool avalanche::reduceLevels ( uint256 &  hash, const std::vector< L > &  levels, F  f  )

static

Definition at line 36 of file delegation.cpp.

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selectPeerImpl()

PeerId avalanche::selectPeerImpl	(	const std::vector< Slot > &	slots,
		const uint64_t	slot,
		const uint64_t	max
	)

Internal methods that are exposed for testing purposes.

Definition at line 927 of file peermanager.cpp.

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VerifyDelegation()

static bool avalanche::VerifyDelegation ( const Delegation &  dg, const CPubKey &  expectedPubKey, bilingual_str &  error  )

static

Definition at line 89 of file processor.cpp.

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VerifyProof()

static bool avalanche::VerifyProof ( const Amount &  stakeUtxoDustThreshold, const Proof &  proof, bilingual_str &  error  )

static

Definition at line 57 of file processor.cpp.

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Variable Documentation

AVALANCHE_MAX_IMMATURE_PROOFS

constexpr uint32_t avalanche::AVALANCHE_MAX_IMMATURE_PROOFS = 4000

staticconstexpr

Maximum number of immature proofs the peer manager will accept from the network.

Note that reorgs can cause the immature pool to temporarily exceed this limit, but a change in chaintip cause previously reorged proofs to be trimmed.

Definition at line 44 of file peermanager.h.

MAX_DELEGATION_LEVELS

constexpr size_t avalanche::MAX_DELEGATION_LEVELS {20}

constexpr

The maximum number of delegation levels we are willing to verify.

A Schnorr signature verification takes about 35us on a 2022 average machine, so 20 levels will roughly take under 1ms (accounting some overhead) while being more than enough to cover all the real world usage.

Definition at line 26 of file delegation.h.

MIN_VALID_PROOF_SCORE

constexpr uint32_t avalanche::MIN_VALID_PROOF_SCORE = 100 * PROOF_DUST_THRESHOLD / COIN

constexpr

Definition at line 17 of file util.h.

PEERS_DUMP_VERSION

constexpr uint64_t avalanche::PEERS_DUMP_VERSION {1}

staticconstexpr

Definition at line 29 of file peermanager.cpp.

PROOF_DUST_THRESHOLD

constexpr Amount avalanche::PROOF_DUST_THRESHOLD = 100 * COIN

staticconstexpr

Minimum amount per utxo.

Definition at line 40 of file proof.h.

UNSPENDABLE_ECREG_PAYOUT_SCRIPT

const CScript avalanche::UNSPENDABLE_ECREG_PAYOUT_SCRIPT

Initial value:

=
    CScript() << OP_DUP << OP_HASH160 << std::vector<uint8_t>(20, 0)
              << OP_EQUALVERIFY << OP_CHECKSIG

Definition at line 19 of file util.h.