avalanche::VoteRecord Struct Reference

Vote history. More...

#include <voterecord.h>

Inheritance diagram for avalanche::VoteRecord:

Public Member Functions
	VoteRecord (bool accepted)
	VoteRecord (const VoteRecord &other)
	Copy semantic. More...
bool	isAccepted () const
	Vote accounting facilities. More...
uint16_t	getConfidence () const
bool	hasFinalized () const
bool	isStale (uint32_t staleThreshold=AVALANCHE_VOTE_STALE_THRESHOLD, uint32_t staleFactor=AVALANCHE_VOTE_STALE_FACTOR) const
bool	registerVote (NodeId nodeid, uint32_t error)
	Register a new vote for an item and update confidence accordingly. More...
bool	registerPoll () const
	Register that a request is being made regarding that item. More...
bool	shouldPoll () const
	Return if this item is in condition to be polled at the moment. More...
void	clearInflightRequest (uint8_t count=1)
	Clear count inflight requests. More...

Private Member Functions
bool	addNodeToQuorum (NodeId nodeid)
	Add the node to the quorum. More...

Private Attributes
uint16_t	confidence = 0
uint8_t	votes = 0
uint8_t	consider = 0
std::atomic< uint8_t >	inflight {0}
const uint32_t	seed = 0
uint32_t	successfulVotes = 0
std::array< uint16_t, 8 >	nodeFilter {{0, 0, 0, 0, 0, 0, 0, 0}}

Friends
struct	::avalanche::TestVoteRecord

Detailed Description

Vote history.

Definition at line 49 of file voterecord.h.

Constructor & Destructor Documentation

VoteRecord() [1/2]

avalanche::VoteRecord::VoteRecord ( bool  accepted )

inlineexplicit

Definition at line 72 of file voterecord.h.

VoteRecord() [2/2]

avalanche::VoteRecord::VoteRecord ( const VoteRecord &  other )

inline

Copy semantic.

Definition at line 77 of file voterecord.h.

Member Function Documentation

addNodeToQuorum()

bool avalanche::VoteRecord::addNodeToQuorum ( NodeId  nodeid )

private

Add the node to the quorum.

Returns true if the node was added, false if the node already was in the quorum.

Check if the node is in the filter.

Add the node which just voted to the filter.

Definition at line 61 of file voterecord.cpp.

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clearInflightRequest()

void avalanche::VoteRecord::clearInflightRequest ( uint8_t  count = 1 )

inline

Clear count inflight requests.

Definition at line 120 of file voterecord.h.

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getConfidence()

uint16_t avalanche::VoteRecord::getConfidence ( ) const

inline

Definition at line 88 of file voterecord.h.

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hasFinalized()

bool avalanche::VoteRecord::hasFinalized ( ) const

inline

Definition at line 89 of file voterecord.h.

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isAccepted()

bool avalanche::VoteRecord::isAccepted ( ) const

inline

Vote accounting facilities.

Definition at line 86 of file voterecord.h.

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isStale()

bool avalanche::VoteRecord::isStale ( uint32_t  staleThreshold = AVALANCHE_VOTE_STALE_THRESHOLD, uint32_t  staleFactor = AVALANCHE_VOTE_STALE_FACTOR  ) const

inline

Definition at line 93 of file voterecord.h.

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registerPoll()

bool avalanche::VoteRecord::registerPoll

(

)

const

Register that a request is being made regarding that item.

The method is made const so that it can be accessed via a read only view of blockVoteRecords. It's not a problem as it is made thread safe.

Definition at line 87 of file voterecord.cpp.

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registerVote()

bool avalanche::VoteRecord::registerVote	(	NodeId	nodeid,
		uint32_t	error
	)

Register a new vote for an item and update confidence accordingly.

Returns true if the acceptance or finalization state changed.

The result of the vote is determined from the error code. If the error code is 0, there is no error and therefore the vote is yes. If there is an error, we check the most significant bit to decide if the vote is a no (for instance, the block is invalid) or is the vote inconclusive (for instance, the queried node does not have the block yet).

We compute the number of yes and/or no votes as follow:

votes: 1010 consider: 1100

yes votes: 1000 using votes & consider no votes: 0100 using ~votes & consider

Definition at line 13 of file voterecord.cpp.

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shouldPoll()

bool avalanche::VoteRecord::shouldPoll ( ) const

inline

Return if this item is in condition to be polled at the moment.

Definition at line 115 of file voterecord.h.

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Friends And Related Function Documentation

::avalanche::TestVoteRecord

friend struct ::avalanche::TestVoteRecord

friend

Definition at line 130 of file voterecord.h.

Member Data Documentation

confidence

uint16_t avalanche::VoteRecord::confidence = 0

private

Definition at line 53 of file voterecord.h.

consider

uint8_t avalanche::VoteRecord::consider = 0

private

Definition at line 58 of file voterecord.h.

inflight

std::atomic<uint8_t> avalanche::VoteRecord::inflight {0}

mutableprivate

Definition at line 60 of file voterecord.h.

nodeFilter

std::array<uint16_t, 8> avalanche::VoteRecord::nodeFilter {{0, 0, 0, 0, 0, 0, 0, 0}}

private

Definition at line 69 of file voterecord.h.

seed

const uint32_t avalanche::VoteRecord::seed = 0

private

Definition at line 63 of file voterecord.h.

successfulVotes

uint32_t avalanche::VoteRecord::successfulVotes = 0

private

Definition at line 66 of file voterecord.h.

votes

uint8_t avalanche::VoteRecord::votes = 0

private

Definition at line 56 of file voterecord.h.

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The documentation for this struct was generated from the following files:

• src/avalanche/voterecord.h
• src/avalanche/voterecord.cpp