platformvm

package
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 Go to latest Published: Feb 3, 2022 License: BSD-3-Clause Imports: 57 Imported by: 0

README

PlatformVM

Mempool Gossiping

The PlatformVM has a mempool which tracks unconfirmed transactions that are waiting to be issued into blocks. The mempool is volatile, i.e. it does not persist unconfirmed transactions.

In conjunction with the introduction of Snowman++, the mempool was opened to the network, allowing the gossiping of local transactions as well as the hosting of remote ones.

Mempool Gossiping Workflow

The PlatformVM's mempool performs the following workflow:

  • An unconfirmed transaction is provided to node A, either through mempool gossiping or direct issuance over a RPC. If this transaction isn't already in the local mempool, the transaction is issued into the mempool.
  • When node A issues a new transaction into its mempool, it will gossip the transaction ID by sending an AppGossip message. The node's engine will randomly select peers (currently defaulting to 6 nodes) to send the AppGossip message to.
  • When node B learns about the existence of a remote transaction ID, it will check if its mempool contains the transaction or if it has been recently dropped. If the transaction ID is not known, node B will generate a new requestID and respond with an AppRequest message with the unknown transaction's ID. node B will track the content of the request issued with requestID for response verification.
  • Upon reception of an AppRequest message, node A will attempt to fetch the transaction requested in the AppRequest message from its mempool. Note that a transaction advertised in an AppGossip message may no longer be in the mempool, because they may have been included into a block, rejected, or dropped. If the transaction is retrieved, it is encoded into an AppResponse message. The AppResponse message will carry the same requestID of the originating AppRequest message and it will be sent back to node B.
  • If node B receives an AppResponse message, it will decode the transaction and verifies that the ID matches the expected content from the original AppRequest message. If the content matches, the transaction is validated and issued into the mempool.
  • If nodeB's engine decides it isn't likely to receive an AppResponse message, the engine will issue an AppRequestFailure message. In such a case node B will mark the requestID as failed and the request for the unknown transaction is aborted.

Documentation

Index

Constants

View Source 
const (

	// BatchSize is the number of decision transactions to place into a block
	BatchSize = 30
)
View Source 
const (
	// CodecVersion is the current default codec version
	CodecVersion = 0
)
View Source 
const (

	// MaxValidatorWeightFactor is the maximum factor of the validator stake
	// that is allowed to be placed on a validator.
	MaxValidatorWeightFactor uint64 = 5
)

Variables

View Source 
var (
	Codec        codec.Manager
	GenesisCodec codec.Manager
)

Codecs do serialization and deserialization

View Source 
var (
	ID = ids.ID{'p', 'l', 'a', 't', 'f', 'o', 'r', 'm', 'v', 'm'}
)

ID of the platform VM

Functions

func CanDelegate 

func CanDelegate(
	current,
	pending []*UnsignedAddDelegatorTx,
	new *UnsignedAddDelegatorTx,
	currentStake,
	maximumStake uint64,
) (bool, error)

CanDelegate returns if the [new] delegator can be added to a validator who has [current] and [pending] delegators. [currentStake] is the current amount of stake on the validator, include the [current] delegators. [maximumStake] is the maximum amount of stake that can be on the validator at any given time. It is assumed that the validator without adding [new] does not violate [maximumStake].

Types

type APIBlockchain 

type APIBlockchain struct {
	// Blockchain's ID
	ID ids.ID `json:"id"`

	// Blockchain's (non-unique) human-readable name
	Name string `json:"name"`

	// Subnet that validates the blockchain
	SubnetID ids.ID `json:"subnetID"`

	// Virtual Machine the blockchain runs
	VMID ids.ID `json:"vmID"`
}

APIBlockchain is the representation of a blockchain used in API calls

type APIChain 

type APIChain struct {
	GenesisData string   `json:"genesisData"`
	VMID        ids.ID   `json:"vmID"`
	FxIDs       []ids.ID `json:"fxIDs"`
	Name        string   `json:"name"`
	SubnetID    ids.ID   `json:"subnetID"`
}

APIChain defines a chain that exists at the network's genesis. [GenesisData] is the initial state of the chain. [VMID] is the ID of the VM this chain runs. [FxIDs] are the IDs of the Fxs the chain supports. [Name] is a human-readable, non-unique name for the chain. [SubnetID] is the ID of the subnet that validates the chain

type APIOwner 

type APIOwner struct {
	Locktime  json.Uint64 `json:"locktime"`
	Threshold json.Uint32 `json:"threshold"`
	Addresses []string    `json:"addresses"`
}

APIOwner is the repr. of a reward owner sent over APIs.

type APIPrimaryDelegator 

type APIPrimaryDelegator struct {
	APIStaker
	RewardOwner     *APIOwner    `json:"rewardOwner,omitempty"`
	PotentialReward *json.Uint64 `json:"potentialReward,omitempty"`
}

APIPrimaryDelegator is the repr. of a primary network delegator sent over APIs.

type APIPrimaryValidator 

type APIPrimaryValidator struct {
	APIStaker
	// The owner the staking reward, if applicable, will go to
	RewardOwner        *APIOwner     `json:"rewardOwner,omitempty"`
	PotentialReward    *json.Uint64  `json:"potentialReward,omitempty"`
	DelegationFee      json.Float32  `json:"delegationFee"`
	ExactDelegationFee *json.Uint32  `json:"exactDelegationFee,omitempty"`
	Uptime             *json.Float32 `json:"uptime,omitempty"`
	Connected          *bool         `json:"connected,omitempty"`
	Staked             []APIUTXO     `json:"staked,omitempty"`
	// The delegators delegating to this validator
	Delegators []APIPrimaryDelegator `json:"delegators"`
}

APIPrimaryValidator is the repr. of a primary network validator sent over APIs.

type APIStaker 

type APIStaker struct {
	TxID        ids.ID       `json:"txID"`
	StartTime   json.Uint64  `json:"startTime"`
	EndTime     json.Uint64  `json:"endTime"`
	Weight      *json.Uint64 `json:"weight,omitempty"`
	StakeAmount *json.Uint64 `json:"stakeAmount,omitempty"`
	NodeID      string       `json:"nodeID"`
}

APIStaker is the representation of a staker sent via APIs. [TxID] is the txID of the transaction that added this staker. [Amount] is the amount of tokens being staked. [StartTime] is the Unix time when they start staking [Endtime] is the Unix time repr. of when they are done staking [NodeID] is the node ID of the staker

type APISubnet 

type APISubnet struct {
	// ID of the subnet
	ID ids.ID `json:"id"`

	// Each element of [ControlKeys] the address of a public key.
	// A transaction to add a validator to this subnet requires
	// signatures from [Threshold] of these keys to be valid.
	ControlKeys []string    `json:"controlKeys"`
	Threshold   json.Uint32 `json:"threshold"`
}

APISubnet is a representation of a subnet used in API calls

type APIUTXO 

type APIUTXO struct {
	Locktime json.Uint64 `json:"locktime"`
	Amount   json.Uint64 `json:"amount"`
	Address  string      `json:"address"`
	Message  string      `json:"message"`
}

APIUTXO is a UTXO on the Platform Chain that exists at the chain's genesis.

type AbortBlock 

type AbortBlock struct {
	DoubleDecisionBlock `serialize:"true"`
	// contains filtered or unexported fields
}

AbortBlock being accepted results in the proposal of its parent (which must be a proposal block) being rejected.

func (*AbortBlock) Accept 

func (a *AbortBlock) Accept() error

func (*AbortBlock) Verify 

func (a *AbortBlock) Verify() error

Verify this block performs a valid state transition.

The parent block must be a proposal

This function also sets onAcceptState if the verification passes.

type AddDelegatorArgs 

type AddDelegatorArgs struct {
	// User, password, from addrs, change addr
	api.JSONSpendHeader
	APIStaker
	RewardAddress string `json:"rewardAddress"`
}

AddDelegatorArgs are the arguments to AddDelegator

type AddSubnetValidatorArgs 

type AddSubnetValidatorArgs struct {
	// User, password, from addrs, change addr
	api.JSONSpendHeader
	APIStaker
	// ID of subnet to validate
	SubnetID string `json:"subnetID"`
}

AddSubnetValidatorArgs are the arguments to AddSubnetValidator

type AddValidatorArgs 

type AddValidatorArgs struct {
	// User, password, from addrs, change addr
	api.JSONSpendHeader
	APIStaker
	// The address the staking reward, if applicable, will go to
	RewardAddress     string       `json:"rewardAddress"`
	DelegationFeeRate json.Float32 `json:"delegationFeeRate"`
}

AddValidatorArgs are the arguments to AddValidator

type AtomicBlock 

type AtomicBlock struct {
	CommonDecisionBlock `serialize:"true"`

	Tx Tx `serialize:"true" json:"tx"`
	// contains filtered or unexported fields
}

AtomicBlock being accepted results in the atomic transaction contained in the block to be accepted and committed to the chain.

func (*AtomicBlock) Accept 

func (ab *AtomicBlock) Accept() error

func (*AtomicBlock) Reject 

func (ab *AtomicBlock) Reject() error

func (*AtomicBlock) Verify 

func (ab *AtomicBlock) Verify() error

Verify this block performs a valid state transition.

The parent block must be a decision block

This function also sets onAcceptDB database if the verification passes.

type BaseTx 

type BaseTx struct {
	avax.BaseTx `serialize:"true" json:"inputs"`
	// contains filtered or unexported fields
}

BaseTx contains fields common to many transaction types. It should be embedded in transaction implementations.

func (*BaseTx) InitCtx 

func (tx *BaseTx) InitCtx(ctx *snow.Context)

InitCtx sets the FxID fields in the inputs and outputs of this BaseTx. Also sets the [ctx] to the given [vm.ctx] so that the addresses can be json marshalled into human readable format

func (*BaseTx) InputIDs 

func (tx *BaseTx) InputIDs() ids.Set

func (*BaseTx) SyntacticVerify 

func (tx *BaseTx) SyntacticVerify(ctx *snow.Context) error

SyntacticVerify returns nil iff this tx is well formed

type Block 

type Block interface {
	snowman.Block
	// contains filtered or unexported methods
}

Block is the common interface that all staking blocks must have

type BuildGenesisArgs 

type BuildGenesisArgs struct {
	AvaxAssetID   ids.ID                `json:"avaxAssetID"`
	NetworkID     json.Uint32           `json:"networkID"`
	UTXOs         []APIUTXO             `json:"utxos"`
	Validators    []APIPrimaryValidator `json:"validators"`
	Chains        []APIChain            `json:"chains"`
	Time          json.Uint64           `json:"time"`
	InitialSupply json.Uint64           `json:"initialSupply"`
	Message       string                `json:"message"`
	Encoding      formatting.Encoding   `json:"encoding"`
}

BuildGenesisArgs are the arguments used to create the genesis data of the Platform Chain. [NetworkID] is the ID of the network [UTXOs] are the UTXOs on the Platform Chain that exist at genesis. [Validators] are the validators of the primary network at genesis. [Chains] are the chains that exist at genesis. [Time] is the Platform Chain's time at network genesis.

type BuildGenesisReply 

type BuildGenesisReply struct {
	Bytes    string              `json:"bytes"`
	Encoding formatting.Encoding `json:"encoding"`
}

BuildGenesisReply is the reply from BuildGenesis

type Client 

type Client interface {
	// GetHeight returns the current block height of the P Chain
	GetHeight(ctx context.Context) (uint64, error)
	// ExportKey returns the private key corresponding to [address] from [user]'s account
	ExportKey(ctx context.Context, user api.UserPass, address string) (string, error)
	// ImportKey imports the specified [privateKey] to [user]'s keystore
	ImportKey(ctx context.Context, user api.UserPass, address string) (string, error)
	// GetBalance returns the balance of [address] on the P Chain
	GetBalance(ctx context.Context, addrs []string) (*GetBalanceResponse, error)
	// CreateAddress creates a new address for [user]
	CreateAddress(ctx context.Context, user api.UserPass) (string, error)
	// ListAddresses returns an array of platform addresses controlled by [user]
	ListAddresses(ctx context.Context, user api.UserPass) ([]string, error)
	// GetUTXOs returns the byte representation of the UTXOs controlled by [addrs]
	GetUTXOs(
		ctx context.Context,
		addrs []string,
		limit uint32,
		startAddress,
		startUTXOID string,
	) ([][]byte, api.Index, error)
	// GetAtomicUTXOs returns the byte representation of the atomic UTXOs controlled by [addresses]
	// from [sourceChain]
	GetAtomicUTXOs(
		ctx context.Context,
		addrs []string,
		sourceChain string,
		limit uint32,
		startAddress,
		startUTXOID string,
	) ([][]byte, api.Index, error)
	// GetSubnets returns information about the specified subnets
	GetSubnets(context.Context, []ids.ID) ([]APISubnet, error)
	// GetStakingAssetID returns the assetID of the asset used for staking on
	// subnet corresponding to [subnetID]
	GetStakingAssetID(context.Context, ids.ID) (ids.ID, error)
	// GetCurrentValidators returns the list of current validators for subnet with ID [subnetID]
	GetCurrentValidators(ctx context.Context, subnetID ids.ID, nodeIDs []ids.ShortID) ([]interface{}, error)
	// GetPendingValidators returns the list of pending validators for subnet with ID [subnetID]
	GetPendingValidators(ctx context.Context, subnetID ids.ID, nodeIDs []ids.ShortID) ([]interface{}, []interface{}, error)
	// GetCurrentSupply returns an upper bound on the supply of AVAX in the system
	GetCurrentSupply(ctx context.Context) (uint64, error)
	// SampleValidators returns the nodeIDs of a sample of [sampleSize] validators from the current validator set for subnet with ID [subnetID]
	SampleValidators(ctx context.Context, subnetID ids.ID, sampleSize uint16) ([]string, error)
	// AddValidator issues a transaction to add a validator to the primary network
	// and returns the txID
	AddValidator(
		ctx context.Context,
		user api.UserPass,
		from []string,
		changeAddr string,
		rewardAddress,
		nodeID string,
		stakeAmount,
		startTime,
		endTime uint64,
		delegationFeeRate float32,
	) (ids.ID, error)
	// AddDelegator issues a transaction to add a delegator to the primary network
	// and returns the txID
	AddDelegator(
		ctx context.Context,
		user api.UserPass,
		from []string,
		changeAddr string,
		rewardAddress,
		nodeID string,
		stakeAmount,
		startTime,
		endTime uint64,
	) (ids.ID, error)
	// AddSubnetValidator issues a transaction to add validator [nodeID] to subnet
	// with ID [subnetID] and returns the txID
	AddSubnetValidator(
		ctx context.Context,
		user api.UserPass,
		from []string,
		changeAddr string,
		subnetID,
		nodeID string,
		stakeAmount,
		startTime,
		endTime uint64,
	) (ids.ID, error)
	// CreateSubnet issues a transaction to create [subnet] and returns the txID
	CreateSubnet(
		ctx context.Context,
		user api.UserPass,
		from []string,
		changeAddr string,
		controlKeys []string,
		threshold uint32,
	) (ids.ID, error)
	// ExportAVAX issues an ExportTx transaction and returns the txID
	ExportAVAX(
		ctx context.Context,
		user api.UserPass,
		from []string,
		changeAddr string,
		to string,
		amount uint64,
	) (ids.ID, error)
	// ImportAVAX issues an ImportTx transaction and returns the txID
	ImportAVAX(
		ctx context.Context,
		user api.UserPass,
		from []string,
		changeAddr,
		to,
		sourceChain string,
	) (ids.ID, error)
	// CreateBlockchain issues a CreateBlockchain transaction and returns the txID
	CreateBlockchain(
		ctx context.Context,
		user api.UserPass,
		from []string,
		changeAddr string,
		subnetID ids.ID,
		vmID string,
		fxIDs []string,
		name string,
		genesisData []byte,
	) (ids.ID, error)
	// GetBlockchainStatus returns the current status of blockchain with ID: [blockchainID]
	GetBlockchainStatus(ctx context.Context, blockchainID string) (status.BlockchainStatus, error)
	// ValidatedBy returns the ID of the Subnet that validates [blockchainID]
	ValidatedBy(ctx context.Context, blockchainID ids.ID) (ids.ID, error)
	// Validates returns the list of blockchains that are validated by the subnet with ID [subnetID]
	Validates(ctx context.Context, subnetID ids.ID) ([]ids.ID, error)
	// GetBlockchains returns the list of blockchains on the platform
	GetBlockchains(ctx context.Context) ([]APIBlockchain, error)
	// IssueTx issues the transaction and returns its txID
	IssueTx(ctx context.Context, tx []byte) (ids.ID, error)
	// GetTx returns the byte representation of the transaction corresponding to [txID]
	GetTx(ctx context.Context, txID ids.ID) ([]byte, error)
	// GetTxStatus returns the status of the transaction corresponding to [txID]
	GetTxStatus(ctx context.Context, txID ids.ID, includeReason bool) (*GetTxStatusResponse, error)
	// GetStake returns the amount of nAVAX that [addresses] have cumulatively
	// staked on the Primary Network.
	GetStake(ctx context.Context, addrs []string) (*GetStakeReply, error)
	// GetMinStake returns the minimum staking amount in nAVAX for validators
	// and delegators respectively
	GetMinStake(ctx context.Context) (uint64, uint64, error)
	// GetTotalStake returns the total amount (in nAVAX) staked on the network
	GetTotalStake(ctx context.Context) (uint64, error)
	// GetMaxStakeAmount returns the maximum amount of nAVAX staking to the named
	// node during the time period.
	GetMaxStakeAmount(ctx context.Context, subnetID ids.ID, nodeID string, startTime uint64, endTime uint64) (uint64, error)
	// GetRewardUTXOs returns the reward UTXOs for a transaction
	GetRewardUTXOs(context.Context, *api.GetTxArgs) ([][]byte, error)
	// GetTimestamp returns the current chain timestamp
	GetTimestamp(ctx context.Context) (time.Time, error)
	// GetValidatorsAt returns the weights of the validator set of a provided subnet
	// at the specified height.
	GetValidatorsAt(ctx context.Context, subnetID ids.ID, height uint64) (map[string]uint64, error)
}

Client interface for interacting with the P Chain endpoint

func NewClient 

func NewClient(uri string) Client

NewClient returns a Client for interacting with the P Chain endpoint

type CommitBlock 

type CommitBlock struct {
	DoubleDecisionBlock `serialize:"true"`
	// contains filtered or unexported fields
}

CommitBlock being accepted results in the proposal of its parent (which must be a proposal block) being enacted.

func (*CommitBlock) Accept 

func (c *CommitBlock) Accept() error

func (*CommitBlock) Verify 

func (c *CommitBlock) Verify() error

Verify this block performs a valid state transition.

The parent block must be a proposal

This function also sets onAcceptState if the verification passes.

type CommonBlock 

type CommonBlock struct {
	PrntID ids.ID `serialize:"true" json:"parentID"` // parent's ID
	Hght   uint64 `serialize:"true" json:"height"`   // This block's height. The genesis block is at height 0.
	// contains filtered or unexported fields
}

CommonBlock contains fields and methods common to all blocks in this VM.

func (*CommonBlock) Accept 

func (b *CommonBlock) Accept() error

func (*CommonBlock) Bytes 

func (b *CommonBlock) Bytes() []byte

Bytes returns the binary representation of this block

func (*CommonBlock) Height 

func (b *CommonBlock) Height() uint64

Height returns this block's height. The genesis block has height 0.

func (*CommonBlock) ID 

func (b *CommonBlock) ID() ids.ID

ID returns the ID of this block

func (*CommonBlock) Parent 

func (b *CommonBlock) Parent() ids.ID

Parent returns this block's parent's ID

func (*CommonBlock) Reject 

func (b *CommonBlock) Reject() error

func (*CommonBlock) Status 

func (b *CommonBlock) Status() choices.Status

Status returns the status of this block

func (*CommonBlock) Timestamp 

func (b *CommonBlock) Timestamp() time.Time

Timestamp returns this block's time.

func (*CommonBlock) Verify 

func (b *CommonBlock) Verify() error

type CommonDecisionBlock 

type CommonDecisionBlock struct {
	CommonBlock `serialize:"true"`
	// contains filtered or unexported fields
}

CommonDecisionBlock contains the fields and methods common to all decision blocks

func (*CommonDecisionBlock) Reject 

func (cdb *CommonDecisionBlock) Reject() error

type CreateBlockchainArgs 

type CreateBlockchainArgs struct {
	// User, password, from addrs, change addr
	api.JSONSpendHeader
	// ID of Subnet that validates the new blockchain
	SubnetID ids.ID `json:"subnetID"`
	// ID of the VM the new blockchain is running
	VMID string `json:"vmID"`
	// IDs of the FXs the VM is running
	FxIDs []string `json:"fxIDs"`
	// Human-readable name for the new blockchain, not necessarily unique
	Name string `json:"name"`
	// Genesis state of the blockchain being created
	GenesisData string `json:"genesisData"`
	// Encoding format to use for genesis data
	Encoding formatting.Encoding `json:"encoding"`
}

CreateBlockchainArgs is the arguments for calling CreateBlockchain

type CreateSubnetArgs 

type CreateSubnetArgs struct {
	// User, password, from addrs, change addr
	api.JSONSpendHeader
	// The ID member of APISubnet is ignored
	APISubnet
}

CreateSubnetArgs are the arguments to CreateSubnet

type DoubleDecisionBlock 

type DoubleDecisionBlock struct {
	CommonDecisionBlock `serialize:"true"`
}

DoubleDecisionBlock contains the accept for a pair of blocks

func (*DoubleDecisionBlock) Accept 

func (ddb *DoubleDecisionBlock) Accept() error

Accept implements the snowman.Block interface

type ExportAVAXArgs 

type ExportAVAXArgs struct {
	// User, password, from addrs, change addr
	api.JSONSpendHeader

	// Amount of AVAX to send
	Amount json.Uint64 `json:"amount"`

	// ID of the address that will receive the AVAX. This address includes the
	// chainID, which is used to determine what the destination chain is.
	To string `json:"to"`
}

ExportAVAXArgs are the arguments to ExportAVAX

type ExportKeyArgs 

type ExportKeyArgs struct {
	api.UserPass
	Address string `json:"address"`
}

ExportKeyArgs are arguments for ExportKey

type ExportKeyReply 

type ExportKeyReply struct {
	// The decrypted PrivateKey for the Address provided in the arguments
	PrivateKey string `json:"privateKey"`
}

ExportKeyReply is the response for ExportKey

type Factory 

type Factory struct {
	// The node's chain manager
	Chains chains.Manager

	// Node's validator set maps subnetID -> validators of the subnet
	Validators validators.Manager

	// Provides access to the uptime manager as a thread safe data structure
	UptimeLockedCalculator uptime.LockedCalculator

	// True if the node is being run with staking enabled
	StakingEnabled bool

	// Set of subnets that this node is validating
	WhitelistedSubnets ids.Set

	// Fee that must be burned by every create staker transaction
	AddStakerTxFee uint64

	// Fee that is burned by every non-state creating transaction
	TxFee uint64

	// Fee that must be burned by every state creating transaction before AP3
	CreateAssetTxFee uint64

	// Fee that must be burned by every subnet creating transaction after AP3
	CreateSubnetTxFee uint64

	// Fee that must be burned by every blockchain creating transaction after AP3
	CreateBlockchainTxFee uint64

	// The minimum amount of tokens one must bond to be a validator
	MinValidatorStake uint64

	// The maximum amount of tokens that can be bonded on a validator
	MaxValidatorStake uint64

	// Minimum stake, in nAVAX, that can be delegated on the primary network
	MinDelegatorStake uint64

	// Minimum fee that can be charged for delegation
	MinDelegationFee uint32

	// UptimePercentage is the minimum uptime required to be rewarded for staking
	UptimePercentage float64

	// Minimum amount of time to allow a staker to stake
	MinStakeDuration time.Duration

	// Maximum amount of time to allow a staker to stake
	MaxStakeDuration time.Duration

	// Config for the minting function
	RewardConfig reward.Config

	// Time of the AP3 network upgrade
	ApricotPhase3Time time.Time

	// Time of the AP4 network upgrade
	ApricotPhase4Time time.Time

	// Time of the AP5 network upgrade
	ApricotPhase5Time time.Time
}

Factory can create new instances of the Platform Chain

func (*Factory) New 

func (f *Factory) New(*snow.Context) (interface{}, error)

New returns a new instance of the Platform Chain

type Fx 

type Fx interface {
	// Initialize this feature extension to be running under this VM. Should
	// return an error if the VM is incompatible.
	Initialize(vm interface{}) error

	// Notify this Fx that the VM is in bootstrapping
	Bootstrapping() error

	// Notify this Fx that the VM is bootstrapped
	Bootstrapped() error

	// VerifyTransfer verifies that the specified transaction can spend the
	// provided utxo with no restrictions on the destination. If the transaction
	// can't spend the output based on the input and credential, a non-nil error
	// should be returned.
	VerifyTransfer(tx, in, cred, utxo interface{}) error

	// VerifyPermission returns nil iff [cred] proves that [controlGroup]
	// assents to [tx]
	VerifyPermission(tx, in, cred, controlGroup interface{}) error

	// CreateOutput creates a new output with the provided control group worth
	// the specified amount
	CreateOutput(amount uint64, controlGroup interface{}) (interface{}, error)
}

Fx is the interface a feature extension must implement to support the Platform Chain.

type Genesis 

type Genesis struct {
	UTXOs         []*GenesisUTXO `serialize:"true"`
	Validators    []*Tx          `serialize:"true"`
	Chains        []*Tx          `serialize:"true"`
	Timestamp     uint64         `serialize:"true"`
	InitialSupply uint64         `serialize:"true"`
	Message       string         `serialize:"true"`
}

Genesis represents a genesis state of the platform chain

func (*Genesis) Initialize 

func (g *Genesis) Initialize() error

type GenesisUTXO 

type GenesisUTXO struct {
	avax.UTXO `serialize:"true"`
	Message   []byte `serialize:"true" json:"message"`
}

GenesisUTXO adds messages to UTXOs

type GetBalanceRequest 

type GetBalanceRequest struct {
	// TODO: remove Address
	Address   *string  `json:"address,omitempty"`
	Addresses []string `json:"addresses"`
}

type GetBalanceResponse 

type GetBalanceResponse struct {
	// Balance, in nAVAX, of the address
	Balance            json.Uint64    `json:"balance"`
	Unlocked           json.Uint64    `json:"unlocked"`
	LockedStakeable    json.Uint64    `json:"lockedStakeable"`
	LockedNotStakeable json.Uint64    `json:"lockedNotStakeable"`
	UTXOIDs            []*avax.UTXOID `json:"utxoIDs"`
}

type GetBlockchainStatusArgs 

type GetBlockchainStatusArgs struct {
	BlockchainID string `json:"blockchainID"`
}

GetBlockchainStatusArgs is the arguments for calling GetBlockchainStatus [BlockchainID] is the ID of or an alias of the blockchain to get the status of.

type GetBlockchainStatusReply 

type GetBlockchainStatusReply struct {
	Status status.BlockchainStatus `json:"status"`
}

GetBlockchainStatusReply is the reply from calling GetBlockchainStatus [Status] is the blockchain's status.

type GetBlockchainsResponse 

type GetBlockchainsResponse struct {
	// blockchains that exist
	Blockchains []APIBlockchain `json:"blockchains"`
}

GetBlockchainsResponse is the response from a call to GetBlockchains

type GetCurrentSupplyReply 

type GetCurrentSupplyReply struct {
	Supply json.Uint64 `json:"supply"`
}

GetCurrentSupplyReply are the results from calling GetCurrentSupply

type GetCurrentValidatorsArgs 

type GetCurrentValidatorsArgs struct {
	// Subnet we're listing the validators of
	// If omitted, defaults to primary network
	SubnetID ids.ID `json:"subnetID"`
	// NodeIDs of validators to request. If [NodeIDs]
	// is empty, it fetches all current validators. If
	// some nodeIDs are not currently validators, they
	// will be omitted from the response.
	NodeIDs []string `json:"nodeIDs"`
}

GetCurrentValidatorsArgs are the arguments for calling GetCurrentValidators

type GetCurrentValidatorsReply 

type GetCurrentValidatorsReply struct {
	Validators []interface{} `json:"validators"`
}

GetCurrentValidatorsReply are the results from calling GetCurrentValidators. Each validator contains a list of delegators to itself.

type GetHeightResponse 

type GetHeightResponse struct {
	Height json.Uint64 `json:"height"`
}

type GetMaxStakeAmountArgs 

type GetMaxStakeAmountArgs struct {
	SubnetID  ids.ID      `json:"subnetID"`
	NodeID    string      `json:"nodeID"`
	StartTime json.Uint64 `json:"startTime"`
	EndTime   json.Uint64 `json:"endTime"`
}

GetMaxStakeAmountArgs is the request for calling GetMaxStakeAmount.

type GetMaxStakeAmountReply 

type GetMaxStakeAmountReply struct {
	Amount json.Uint64 `json:"amount"`
}

GetMaxStakeAmountReply is the response from calling GetMaxStakeAmount.

type GetMinStakeReply 

type GetMinStakeReply struct {
	//  The minimum amount of tokens one must bond to be a validator
	MinValidatorStake json.Uint64 `json:"minValidatorStake"`
	// Minimum stake, in nAVAX, that can be delegated on the primary network
	MinDelegatorStake json.Uint64 `json:"minDelegatorStake"`
}

GetMinStakeReply is the response from calling GetMinStake.

type GetPendingValidatorsArgs 

type GetPendingValidatorsArgs struct {
	// Subnet we're getting the pending validators of
	// If omitted, defaults to primary network
	SubnetID ids.ID `json:"subnetID"`
	// NodeIDs of validators to request. If [NodeIDs]
	// is empty, it fetches all pending validators. If
	// some requested nodeIDs are not pending validators,
	// they are omitted from the response.
	NodeIDs []string `json:"nodeIDs"`
}

GetPendingValidatorsArgs are the arguments for calling GetPendingValidators

type GetPendingValidatorsReply 

type GetPendingValidatorsReply struct {
	Validators []interface{} `json:"validators"`
	Delegators []interface{} `json:"delegators"`
}

GetPendingValidatorsReply are the results from calling GetPendingValidators. Unlike GetCurrentValidatorsReply, each validator has a null delegator list.

type GetRewardUTXOsReply 

type GetRewardUTXOsReply struct {
	// Number of UTXOs returned
	NumFetched json.Uint64 `json:"numFetched"`
	// The UTXOs
	UTXOs []string `json:"utxos"`
	// Encoding specifies the encoding format the UTXOs are returned in
	Encoding formatting.Encoding `json:"encoding"`
}

GetRewardUTXOsReply defines the GetRewardUTXOs replies returned from the API

type GetStakeArgs 

type GetStakeArgs struct {
	api.JSONAddresses
	Encoding formatting.Encoding `json:"encoding"`
}

type GetStakeReply 

type GetStakeReply struct {
	Staked json.Uint64 `json:"staked"`
	// String representation of staked outputs
	// Each is of type avax.TransferableOutput
	Outputs []string `json:"stakedOutputs"`
	// Encoding of [Outputs]
	Encoding formatting.Encoding `json:"encoding"`
}

GetStakeReply is the response from calling GetStake.

type GetStakingAssetIDArgs 

type GetStakingAssetIDArgs struct {
	SubnetID ids.ID `json:"subnetID"`
}

GetStakingAssetIDArgs are the arguments to GetStakingAssetID

type GetStakingAssetIDResponse 

type GetStakingAssetIDResponse struct {
	AssetID ids.ID `json:"assetID"`
}

GetStakingAssetIDResponse is the response from calling GetStakingAssetID

type GetSubnetsArgs 

type GetSubnetsArgs struct {
	// IDs of the subnets to retrieve information about
	// If omitted, gets all subnets
	IDs []ids.ID `json:"ids"`
}

GetSubnetsArgs are the arguments to GetSubnet

type GetSubnetsResponse 

type GetSubnetsResponse struct {
	// Each element is a subnet that exists
	// Null if there are no subnets other than the primary network
	Subnets []APISubnet `json:"subnets"`
}

GetSubnetsResponse is the response from calling GetSubnets

type GetTimestampReply 

type GetTimestampReply struct {
	// Current timestamp
	Timestamp time.Time `json:"timestamp"`
}

GetTimestampReply is the response from GetTimestamp

type GetTotalStakeReply 

type GetTotalStakeReply struct {
	Stake json.Uint64 `json:"stake"`
}

GetTotalStakeReply is the response from calling GetTotalStake.

type GetTxStatusArgs 

type GetTxStatusArgs struct {
	TxID ids.ID `json:"txID"`
	// If IncludeReason is false returns a response that looks like:
	// {
	// 	"jsonrpc": "2.0",
	// 	"result": "Dropped",
	// 	"id": 1
	// }
	// If IncludeReason is true returns a response that looks like this:
	// {
	// 	"jsonrpc": "2.0",
	// 	"result": {
	//     "status":"[Status]",
	//     "reason":"[Reason tx was dropped, if applicable]"
	//  },
	// 	"id": 1
	// }
	// In the latter, "reason" is only present if the status is dropped
	IncludeReason bool `json:"includeReason"`
}

type GetTxStatusResponse 

type GetTxStatusResponse struct {
	Status status.Status `json:"status"`
	// Reason this tx was dropped.
	// Only non-empty if Status is dropped
	Reason string `json:"reason,omitempty"`
}

type GetUTXOsArgs 

type GetUTXOsArgs struct {
	Addresses   []string            `json:"addresses"`
	SourceChain string              `json:"sourceChain"`
	Limit       json.Uint32         `json:"limit"`
	StartIndex  Index               `json:"startIndex"`
	Encoding    formatting.Encoding `json:"encoding"`
}

GetUTXOsArgs are arguments for passing into GetUTXOs. Gets the UTXOs that reference at least one address in [Addresses]. If specified, [SourceChain] is the chain where the atomic UTXOs were exported from. If empty, or the Platform Chain ID is specified, then GetUTXOs fetches the native UTXOs. Returns at most [limit] addresses. If [limit] == 0 or > [maxUTXOsToFetch], fetches up to [maxUTXOsToFetch]. [StartIndex] defines where to start fetching UTXOs (for pagination.) UTXOs fetched are from addresses equal to or greater than [StartIndex.Address] For address [StartIndex.Address], only UTXOs with IDs greater than [StartIndex.UTXO] will be returned. If [StartIndex] is omitted, gets all UTXOs. If GetUTXOs is called multiple times, with our without [StartIndex], it is not guaranteed that returned UTXOs are unique. That is, the same UTXO may appear in the response of multiple calls. [Encoding] defines the encoding format to use for the returned UTXOs. Can be either "cb58" or "hex"

type GetUTXOsResponse 

type GetUTXOsResponse struct {
	// Number of UTXOs returned
	NumFetched json.Uint64 `json:"numFetched"`
	// The UTXOs
	UTXOs []string `json:"utxos"`
	// The last UTXO that was returned, and the address it corresponds to.
	// Used for pagination. To get the rest of the UTXOs, call GetUTXOs
	// again and set [StartIndex] to this value.
	EndIndex Index `json:"endIndex"`
	// Encoding specifies the format the UTXOs are returned in
	Encoding formatting.Encoding `json:"encoding"`
}

GetUTXOsResponse defines the GetUTXOs replies returned from the API

type GetValidatorsAtArgs 

type GetValidatorsAtArgs struct {
	Height   json.Uint64 `json:"height"`
	SubnetID ids.ID      `json:"subnetID"`
}

GetValidatorsAtArgs is the response from GetValidatorsAt

type GetValidatorsAtReply 

type GetValidatorsAtReply struct {
	Validators map[string]uint64 `json:"validators"`
}

GetValidatorsAtReply is the response from GetValidatorsAt

type ImportAVAXArgs 

type ImportAVAXArgs struct {
	// User, password, from addrs, change addr
	api.JSONSpendHeader

	// Chain the funds are coming from
	SourceChain string `json:"sourceChain"`

	// The address that will receive the imported funds
	To string `json:"to"`
}

ImportAVAXArgs are the arguments to ImportAVAX

type ImportKeyArgs 

type ImportKeyArgs struct {
	api.UserPass
	PrivateKey string `json:"privateKey"`
}

ImportKeyArgs are arguments for ImportKey

type Index 

type Index struct {
	Address string `json:"address"` // The address as a string
	UTXO    string `json:"utxo"`    // The UTXO ID as a string
}

Index is an address and an associated UTXO. Marks a starting or stopping point when fetching UTXOs. Used for pagination.

type InternalState 

type InternalState interface {
	MutableState
	uptime.State
	avax.UTXOReader

	SetHeight(height uint64)

	AddCurrentStaker(tx *Tx, potentialReward uint64)
	DeleteCurrentStaker(tx *Tx)
	GetValidatorWeightDiffs(height uint64, subnetID ids.ID) (map[ids.ShortID]*ValidatorWeightDiff, error)

	AddPendingStaker(tx *Tx)
	DeletePendingStaker(tx *Tx)

	SetCurrentStakerChainState(currentStakerChainState)
	SetPendingStakerChainState(pendingStakerChainState)

	GetLastAccepted() ids.ID
	SetLastAccepted(ids.ID)

	GetBlock(blockID ids.ID) (Block, error)
	AddBlock(block Block)

	Abort()
	Commit() error
	CommitBatch() (database.Batch, error)
	Close() error
}

func NewInternalState 

func NewInternalState(vm *VM, db database.Database, genesis []byte) (InternalState, error)

func NewMeteredInternalState 

func NewMeteredInternalState(vm *VM, db database.Database, genesis []byte, metrics prometheus.Registerer) (InternalState, error)

type Mempool 

type Mempool interface {
	Add(tx *Tx) error
	Has(txID ids.ID) bool
	Get(txID ids.ID) *Tx

	AddDecisionTx(tx *Tx)
	AddProposalTx(tx *Tx)

	HasDecisionTxs() bool
	HasProposalTx() bool

	RemoveDecisionTxs(txs []*Tx)
	RemoveProposalTx(tx *Tx)

	PopDecisionTxs(numTxs int) []*Tx
	PopProposalTx() *Tx

	MarkDropped(txID ids.ID)
	WasDropped(txID ids.ID) bool
}

func NewMempool 

func NewMempool(namespace string, registerer prometheus.Registerer) (Mempool, error)

type MutableState 

type MutableState interface {
	UTXOState
	ValidatorState

	AddRewardUTXO(txID ids.ID, utxo *avax.UTXO)
	GetRewardUTXOs(txID ids.ID) ([]*avax.UTXO, error)

	GetTimestamp() time.Time
	SetTimestamp(time.Time)

	GetCurrentSupply() uint64
	SetCurrentSupply(uint64)

	GetSubnets() ([]*Tx, error)
	AddSubnet(createSubnetTx *Tx)

	GetChains(subnetID ids.ID) ([]*Tx, error)
	AddChain(createChainTx *Tx)

	GetTx(txID ids.ID) (*Tx, status.Status, error)
	AddTx(tx *Tx, status status.Status)
}

type Owned 

type Owned interface {
	Owners() interface{}
}

type Owner 

type Owner interface {
	verify.Verifiable
	snow.ContextInitializable
}

type ProposalBlock 

type ProposalBlock struct {
	CommonBlock `serialize:"true"`

	Tx Tx `serialize:"true" json:"tx"`
	// contains filtered or unexported fields
}

ProposalBlock is a proposal to change the chain's state.

A proposal may be to:

  1. Advance the chain's timestamp (*AdvanceTimeTx)
  2. Remove a staker from the staker set (*RewardStakerTx)
  3. Add a new staker to the set of pending (future) stakers (*AddValidatorTx, *AddDelegatorTx, *AddSubnetValidatorTx)

The proposal will be enacted (change the chain's state) if the proposal block is accepted and followed by an accepted Commit block

func (*ProposalBlock) Accept 

func (pb *ProposalBlock) Accept() error

func (*ProposalBlock) Options 

func (pb *ProposalBlock) Options() ([2]snowman.Block, error)

Options returns the possible children of this block in preferential order.

func (*ProposalBlock) Reject 

func (pb *ProposalBlock) Reject() error

Reject implements the snowman.Block interface

func (*ProposalBlock) Verify 

func (pb *ProposalBlock) Verify() error

Verify this block is valid.

The parent block must either be a Commit or an Abort block.

If this block is valid, this function also sets pas.onCommit and pas.onAbort.

type SampleValidatorsArgs 

type SampleValidatorsArgs struct {
	// Number of validators in the sample
	Size json.Uint16 `json:"size"`

	// ID of subnet to sample validators from
	// If omitted, defaults to the primary network
	SubnetID ids.ID `json:"subnetID"`
}

SampleValidatorsArgs are the arguments for calling SampleValidators

type SampleValidatorsReply 

type SampleValidatorsReply struct {
	Validators []string `json:"validators"`
}

SampleValidatorsReply are the results from calling Sample

type Service 

type Service struct {
	// contains filtered or unexported fields
}

Service defines the API calls that can be made to the platform chain

func (*Service) AddDelegator 

func (service *Service) AddDelegator(_ *http.Request, args *AddDelegatorArgs, reply *api.JSONTxIDChangeAddr) error

AddDelegator creates and signs and issues a transaction to add a delegator to the primary network

func (*Service) AddSubnetValidator 

func (service *Service) AddSubnetValidator(_ *http.Request, args *AddSubnetValidatorArgs, response *api.JSONTxIDChangeAddr) error

AddSubnetValidator creates and signs and issues a transaction to add a validator to a subnet other than the primary network

func (*Service) AddValidator 

func (service *Service) AddValidator(_ *http.Request, args *AddValidatorArgs, reply *api.JSONTxIDChangeAddr) error

AddValidator creates and signs and issues a transaction to add a validator to the primary network

func (*Service) CreateAddress 

func (service *Service) CreateAddress(_ *http.Request, args *api.UserPass, response *api.JSONAddress) error

CreateAddress creates an address controlled by [args.Username] Returns the newly created address

func (*Service) CreateBlockchain 

func (service *Service) CreateBlockchain(_ *http.Request, args *CreateBlockchainArgs, response *api.JSONTxIDChangeAddr) error

CreateBlockchain issues a transaction to create a new blockchain

func (*Service) CreateSubnet 

func (service *Service) CreateSubnet(_ *http.Request, args *CreateSubnetArgs, response *api.JSONTxIDChangeAddr) error

CreateSubnet creates and signs and issues a transaction to create a new subnet

func (*Service) ExportAVAX 

func (service *Service) ExportAVAX(_ *http.Request, args *ExportAVAXArgs, response *api.JSONTxIDChangeAddr) error

ExportAVAX exports AVAX from the P-Chain to the X-Chain It must be imported on the X-Chain to complete the transfer

func (*Service) ExportKey 

func (service *Service) ExportKey(r *http.Request, args *ExportKeyArgs, reply *ExportKeyReply) error

ExportKey returns a private key from the provided user

func (*Service) GetBalance 

func (service *Service) GetBalance(_ *http.Request, args *GetBalanceRequest, response *GetBalanceResponse) error

GetBalance gets the balance of an address

func (*Service) GetBlockchainStatus 

func (service *Service) GetBlockchainStatus(_ *http.Request, args *GetBlockchainStatusArgs, reply *GetBlockchainStatusReply) error

GetBlockchainStatus gets the status of a blockchain with the ID [args.BlockchainID].

func (*Service) GetBlockchains 

func (service *Service) GetBlockchains(_ *http.Request, args *struct{}, response *GetBlockchainsResponse) error

GetBlockchains returns all of the blockchains that exist

func (*Service) GetCurrentSupply 

func (service *Service) GetCurrentSupply(_ *http.Request, _ *struct{}, reply *GetCurrentSupplyReply) error

GetCurrentSupply returns an upper bound on the supply of AVAX in the system

func (*Service) GetCurrentValidators 

func (service *Service) GetCurrentValidators(_ *http.Request, args *GetCurrentValidatorsArgs, reply *GetCurrentValidatorsReply) error

GetCurrentValidators returns current validators and delegators

func (*Service) GetHeight 

func (service *Service) GetHeight(r *http.Request, args *struct{}, response *GetHeightResponse) error

GetHeight returns the height of the last accepted block

func (*Service) GetMaxStakeAmount 

func (service *Service) GetMaxStakeAmount(_ *http.Request, args *GetMaxStakeAmountArgs, reply *GetMaxStakeAmountReply) error

GetMaxStakeAmount returns the maximum amount of nAVAX staking to the named node during the time period.

func (*Service) GetMinStake 

func (service *Service) GetMinStake(_ *http.Request, _ *struct{}, reply *GetMinStakeReply) error

GetMinStake returns the minimum staking amount in nAVAX.

func (*Service) GetPendingValidators 

func (service *Service) GetPendingValidators(_ *http.Request, args *GetPendingValidatorsArgs, reply *GetPendingValidatorsReply) error

GetPendingValidators returns the list of pending validators

func (*Service) GetRewardUTXOs 

func (service *Service) GetRewardUTXOs(_ *http.Request, args *api.GetTxArgs, reply *GetRewardUTXOsReply) error

GetRewardUTXOs returns the UTXOs that were rewarded after the provided transaction's staking period ended.

func (*Service) GetStake 

func (service *Service) GetStake(_ *http.Request, args *GetStakeArgs, response *GetStakeReply) error

GetStake returns the amount of nAVAX that [args.Addresses] have cumulatively staked on the Primary Network.

This method assumes that each stake output has only owner This method assumes only AVAX can be staked This method only concerns itself with the Primary Network, not subnets TODO: Improve the performance of this method by maintaining this data in a data structure rather than re-calculating it by iterating over stakers

func (*Service) GetStakingAssetID 

func (service *Service) GetStakingAssetID(_ *http.Request, args *GetStakingAssetIDArgs, response *GetStakingAssetIDResponse) error

GetStakingAssetID returns the assetID of the token used to stake on the provided subnet

func (*Service) GetSubnets 

func (service *Service) GetSubnets(_ *http.Request, args *GetSubnetsArgs, response *GetSubnetsResponse) error

GetSubnets returns the subnets whose ID are in [args.IDs] The response will include the primary network

func (*Service) GetTimestamp 

func (service *Service) GetTimestamp(_ *http.Request, args *struct{}, reply *GetTimestampReply) error

GetTimestamp returns the current timestamp on chain.

func (*Service) GetTotalStake 

func (service *Service) GetTotalStake(_ *http.Request, _ *struct{}, reply *GetTotalStakeReply) error

GetTotalStake returns the total amount staked on the Primary Network

func (*Service) GetTx 

func (service *Service) GetTx(_ *http.Request, args *api.GetTxArgs, response *api.FormattedTx) error

GetTx gets a tx

func (*Service) GetTxStatus 

func (service *Service) GetTxStatus(_ *http.Request, args *GetTxStatusArgs, response *GetTxStatusResponse) error

GetTxStatus gets a tx's status

func (*Service) GetUTXOs 

func (service *Service) GetUTXOs(_ *http.Request, args *GetUTXOsArgs, response *GetUTXOsResponse) error

GetUTXOs returns the UTXOs controlled by the given addresses

func (*Service) GetValidatorsAt 

func (service *Service) GetValidatorsAt(_ *http.Request, args *GetValidatorsAtArgs, reply *GetValidatorsAtReply) error

GetValidatorsAt returns the weights of the validator set of a provided subnet at the specified height.

func (*Service) ImportAVAX 

func (service *Service) ImportAVAX(_ *http.Request, args *ImportAVAXArgs, response *api.JSONTxIDChangeAddr) error

ImportAVAX issues a transaction to import AVAX from the X-chain. The AVAX must have already been exported from the X-Chain.

func (*Service) ImportKey 

func (service *Service) ImportKey(r *http.Request, args *ImportKeyArgs, reply *api.JSONAddress) error

ImportKey adds a private key to the provided user

func (*Service) IssueTx 

func (service *Service) IssueTx(_ *http.Request, args *api.FormattedTx, response *api.JSONTxID) error

IssueTx issues a tx

func (*Service) ListAddresses 

func (service *Service) ListAddresses(_ *http.Request, args *api.UserPass, response *api.JSONAddresses) error

ListAddresses returns the addresses controlled by [args.Username]

func (*Service) SampleValidators 

func (service *Service) SampleValidators(_ *http.Request, args *SampleValidatorsArgs, reply *SampleValidatorsReply) error

SampleValidators returns a sampling of the list of current validators

func (*Service) ValidatedBy 

func (service *Service) ValidatedBy(_ *http.Request, args *ValidatedByArgs, response *ValidatedByResponse) error

ValidatedBy returns the ID of the Subnet that validates [args.BlockchainID]

func (*Service) Validates 

func (service *Service) Validates(_ *http.Request, args *ValidatesArgs, response *ValidatesResponse) error

Validates returns the IDs of the blockchains validated by [args.SubnetID]

type StakeableLockIn 

type StakeableLockIn struct {
	Locktime            uint64 `serialize:"true" json:"locktime"`
	avax.TransferableIn `serialize:"true" json:"input"`
}

func (*StakeableLockIn) Verify 

func (s *StakeableLockIn) Verify() error

type StakeableLockOut 

type StakeableLockOut struct {
	Locktime             uint64 `serialize:"true" json:"locktime"`
	avax.TransferableOut `serialize:"true" json:"output"`
}

func (*StakeableLockOut) Addresses 

func (s *StakeableLockOut) Addresses() [][]byte

func (*StakeableLockOut) Verify 

func (s *StakeableLockOut) Verify() error

type StandardBlock 

type StandardBlock struct {
	CommonDecisionBlock `serialize:"true"`

	Txs []*Tx `serialize:"true" json:"txs"`
	// contains filtered or unexported fields
}

StandardBlock being accepted results in the transactions contained in the block to be accepted and committed to the chain.

func (*StandardBlock) Accept 

func (sb *StandardBlock) Accept() error

func (*StandardBlock) Reject 

func (sb *StandardBlock) Reject() error

func (*StandardBlock) Verify 

func (sb *StandardBlock) Verify() error

Verify this block performs a valid state transition.

The parent block must be a proposal

This function also sets onAcceptDB database if the verification passes.

type StaticService 

type StaticService struct{}

StaticService defines the static API methods exposed by the platform VM

func (*StaticService) BuildGenesis 

func (ss *StaticService) BuildGenesis(_ *http.Request, args *BuildGenesisArgs, reply *BuildGenesisReply) error

BuildGenesis build the genesis state of the Platform Chain (and thereby the Avalanche network.)

type Subnet 

type Subnet interface {
	// ID returns this subnet's ID
	ID() ids.ID

	// Validators returns the validators that compose this subnet
	Validators() []validators.Validator
}

A Subnet is a set of validators that are validating a set of blockchains Each blockchain is validated by one subnet; one subnet may validate many blockchains

type SubnetValidator 

type SubnetValidator struct {
	Validator `serialize:"true"`

	// ID of the subnet this validator is validating
	Subnet ids.ID `serialize:"true" json:"subnet"`
}

SubnetValidator validates a subnet on the Avalanche network.

func (*SubnetValidator) SubnetID 

func (v *SubnetValidator) SubnetID() ids.ID

SubnetID is the ID of the subnet this validator is validating

func (*SubnetValidator) Verify 

func (v *SubnetValidator) Verify() error

Verify this validator is valid

type TimedTx 

type TimedTx interface {
	ID() ids.ID
	StartTime() time.Time
	EndTime() time.Time
	Weight() uint64
	Bytes() []byte
}

type TimedTxHeap 

type TimedTxHeap interface {
	TxHeap

	Timestamp() time.Time
}

func NewTxHeapByStartTime 

func NewTxHeapByStartTime() TimedTxHeap

type Tx 

type Tx struct {
	// The body of this transaction
	UnsignedTx `serialize:"true" json:"unsignedTx"`

	// The credentials of this transaction
	Creds []verify.Verifiable `serialize:"true" json:"credentials"`
}

Tx is a signed transaction

func (*Tx) Sign 

func (tx *Tx) Sign(c codec.Manager, signers [][]*crypto.PrivateKeySECP256K1R) error

Sign this transaction with the provided signers

type TxHeap 

type TxHeap interface {
	Add(tx *Tx)
	Get(txID ids.ID) *Tx
	Remove(txID ids.ID) *Tx
	Peek() *Tx
	RemoveTop() *Tx
	Len() int
}

func NewTxHeapByAge 

func NewTxHeapByAge() TxHeap

func NewTxHeapWithMetrics 

func NewTxHeapWithMetrics(
	txHeap TxHeap,
	namespace string,
	registerer prometheus.Registerer,
) (TxHeap, error)

type UTXOAdder 

type UTXOAdder interface {
	AddUTXO(utxo *avax.UTXO)
}

type UTXODeleter 

type UTXODeleter interface {
	DeleteUTXO(utxoID ids.ID)
}

type UTXOGetter 

type UTXOGetter interface {
	GetUTXO(utxoID ids.ID) (*avax.UTXO, error)
}

type UTXOState 

type UTXOState interface {
	UTXOGetter
	UTXOAdder
	UTXODeleter
}

type UnsignedAddDelegatorTx 

type UnsignedAddDelegatorTx struct {
	// Metadata, inputs and outputs
	BaseTx `serialize:"true"`
	// Describes the delegatee
	Validator Validator `serialize:"true" json:"validator"`
	// Where to send staked tokens when done validating
	Stake []*avax.TransferableOutput `serialize:"true" json:"stake"`
	// Where to send staking rewards when done validating
	RewardsOwner Owner `serialize:"true" json:"rewardsOwner"`
}

UnsignedAddDelegatorTx is an unsigned addDelegatorTx

func (*UnsignedAddDelegatorTx) EndTime 

func (tx *UnsignedAddDelegatorTx) EndTime() time.Time

EndTime of this validator

func (*UnsignedAddDelegatorTx) Execute 

func (tx *UnsignedAddDelegatorTx) Execute(
	vm *VM,
	parentState MutableState,
	stx *Tx,
) (
	VersionedState,
	VersionedState,
	error,
)

Execute this transaction.

func (*UnsignedAddDelegatorTx) InitCtx 

func (tx *UnsignedAddDelegatorTx) InitCtx(ctx *snow.Context)

InitCtx sets the FxID fields in the inputs and outputs of this UnsignedAddDelegatorTx. Also sets the [ctx] to the given [vm.ctx] so that the addresses can be json marshalled into human readable format

func (*UnsignedAddDelegatorTx) InitiallyPrefersCommit 

func (tx *UnsignedAddDelegatorTx) InitiallyPrefersCommit(vm *VM) bool

InitiallyPrefersCommit returns true if the proposed validators start time is after the current wall clock time,

func (*UnsignedAddDelegatorTx) SemanticVerify 

func (tx *UnsignedAddDelegatorTx) SemanticVerify(vm *VM, parentState MutableState, stx *Tx) error

Attempts to verify this transaction with the provided state.

func (*UnsignedAddDelegatorTx) StartTime 

func (tx *UnsignedAddDelegatorTx) StartTime() time.Time

StartTime of this validator

func (*UnsignedAddDelegatorTx) SyntacticVerify 

func (tx *UnsignedAddDelegatorTx) SyntacticVerify(ctx *snow.Context) error

SyntacticVerify returns nil iff [tx] is valid

func (*UnsignedAddDelegatorTx) Weight 

func (tx *UnsignedAddDelegatorTx) Weight() uint64

Weight of this validator

type UnsignedAddSubnetValidatorTx 

type UnsignedAddSubnetValidatorTx struct {
	// Metadata, inputs and outputs
	BaseTx `serialize:"true"`
	// The validator
	Validator SubnetValidator `serialize:"true" json:"validator"`
	// Auth that will be allowing this validator into the network
	SubnetAuth verify.Verifiable `serialize:"true" json:"subnetAuthorization"`
}

UnsignedAddSubnetValidatorTx is an unsigned addSubnetValidatorTx

func (*UnsignedAddSubnetValidatorTx) EndTime 

func (tx *UnsignedAddSubnetValidatorTx) EndTime() time.Time

EndTime of this validator

func (*UnsignedAddSubnetValidatorTx) Execute 

func (tx *UnsignedAddSubnetValidatorTx) Execute(
	vm *VM,
	parentState MutableState,
	stx *Tx,
) (
	VersionedState,
	VersionedState,
	error,
)

Execute this transaction.

func (*UnsignedAddSubnetValidatorTx) InitiallyPrefersCommit 

func (tx *UnsignedAddSubnetValidatorTx) InitiallyPrefersCommit(vm *VM) bool

InitiallyPrefersCommit returns true if the proposed validators start time is after the current wall clock time,

func (*UnsignedAddSubnetValidatorTx) SemanticVerify 

func (tx *UnsignedAddSubnetValidatorTx) SemanticVerify(vm *VM, parentState MutableState, stx *Tx) error

Attempts to verify this transaction with the provided state.

func (*UnsignedAddSubnetValidatorTx) StartTime 

func (tx *UnsignedAddSubnetValidatorTx) StartTime() time.Time

StartTime of this validator

func (*UnsignedAddSubnetValidatorTx) SyntacticVerify 

func (tx *UnsignedAddSubnetValidatorTx) SyntacticVerify(ctx *snow.Context) error

SyntacticVerify returns nil iff [tx] is valid

func (*UnsignedAddSubnetValidatorTx) Weight 

func (tx *UnsignedAddSubnetValidatorTx) Weight() uint64

Weight of this validator

type UnsignedAddValidatorTx 

type UnsignedAddValidatorTx struct {
	// Metadata, inputs and outputs
	BaseTx `serialize:"true"`
	// Describes the delegatee
	Validator Validator `serialize:"true" json:"validator"`
	// Where to send staked tokens when done validating
	Stake []*avax.TransferableOutput `serialize:"true" json:"stake"`
	// Where to send staking rewards when done validating
	RewardsOwner Owner `serialize:"true" json:"rewardsOwner"`
	// Fee this validator charges delegators as a percentage, times 10,000
	// For example, if this validator has Shares=300,000 then they take 30% of rewards from delegators
	Shares uint32 `serialize:"true" json:"shares"`
}

UnsignedAddValidatorTx is an unsigned addValidatorTx

func (*UnsignedAddValidatorTx) EndTime 

func (tx *UnsignedAddValidatorTx) EndTime() time.Time

EndTime of this validator

func (*UnsignedAddValidatorTx) Execute 

func (tx *UnsignedAddValidatorTx) Execute(
	vm *VM,
	parentState MutableState,
	stx *Tx,
) (
	VersionedState,
	VersionedState,
	error,
)

Execute this transaction.

func (*UnsignedAddValidatorTx) InitCtx 

func (tx *UnsignedAddValidatorTx) InitCtx(ctx *snow.Context)

InitCtx sets the FxID fields in the inputs and outputs of this UnsignedAddValidatorTx. Also sets the [ctx] to the given [vm.ctx] so that the addresses can be json marshalled into human readable format

func (*UnsignedAddValidatorTx) InitiallyPrefersCommit 

func (tx *UnsignedAddValidatorTx) InitiallyPrefersCommit(vm *VM) bool

InitiallyPrefersCommit returns true if the proposed validators start time is after the current wall clock time,

func (*UnsignedAddValidatorTx) SemanticVerify 

func (tx *UnsignedAddValidatorTx) SemanticVerify(vm *VM, parentState MutableState, stx *Tx) error

Attempts to verify this transaction with the provided state.

func (*UnsignedAddValidatorTx) StartTime 

func (tx *UnsignedAddValidatorTx) StartTime() time.Time

StartTime of this validator

func (*UnsignedAddValidatorTx) SyntacticVerify 

func (tx *UnsignedAddValidatorTx) SyntacticVerify(ctx *snow.Context) error

SyntacticVerify returns nil iff [tx] is valid

func (*UnsignedAddValidatorTx) Weight 

func (tx *UnsignedAddValidatorTx) Weight() uint64

Weight of this validator

type UnsignedAdvanceTimeTx 

type UnsignedAdvanceTimeTx struct {
	avax.Metadata

	// Unix time this block proposes increasing the timestamp to
	Time uint64 `serialize:"true" json:"time"`
}

UnsignedAdvanceTimeTx is a transaction to increase the chain's timestamp. When the chain's timestamp is updated (a AdvanceTimeTx is accepted and followed by a commit block) the staker set is also updated accordingly. It must be that:

  • proposed timestamp > [current chain time]
  • proposed timestamp <= [time for next staker set change]

func (*UnsignedAdvanceTimeTx) Execute 

func (tx *UnsignedAdvanceTimeTx) Execute(
	vm *VM,
	parentState MutableState,
	stx *Tx,
) (
	VersionedState,
	VersionedState,
	error,
)

Execute this transaction.

func (*UnsignedAdvanceTimeTx) InitCtx 

func (tx *UnsignedAdvanceTimeTx) InitCtx(*snow.Context)

func (*UnsignedAdvanceTimeTx) InitiallyPrefersCommit 

func (tx *UnsignedAdvanceTimeTx) InitiallyPrefersCommit(vm *VM) bool

InitiallyPrefersCommit returns true if the proposed time is at or before the current time plus the synchrony bound

func (*UnsignedAdvanceTimeTx) InputIDs 

func (tx *UnsignedAdvanceTimeTx) InputIDs() ids.Set

func (*UnsignedAdvanceTimeTx) SemanticVerify 

func (tx *UnsignedAdvanceTimeTx) SemanticVerify(vm *VM, parentState MutableState, stx *Tx) error

Attempts to verify this transaction with the provided state.

func (*UnsignedAdvanceTimeTx) SyntacticVerify 

func (tx *UnsignedAdvanceTimeTx) SyntacticVerify(*snow.Context) error

func (*UnsignedAdvanceTimeTx) Timestamp 

func (tx *UnsignedAdvanceTimeTx) Timestamp() time.Time

Timestamp returns the time this block is proposing the chain should be set to

type UnsignedAtomicTx 

type UnsignedAtomicTx interface {
	UnsignedDecisionTx

	// Execute this transaction with the provided state.
	AtomicExecute(vm *VM, parentState MutableState, stx *Tx) (VersionedState, error)

	// Accept this transaction with the additionally provided state transitions.
	AtomicAccept(ctx *snow.Context, batch database.Batch) error
}

UnsignedAtomicTx is an unsigned operation that can be atomically accepted

type UnsignedCreateChainTx 

type UnsignedCreateChainTx struct {
	// Metadata, inputs and outputs
	BaseTx `serialize:"true"`
	// ID of the Subnet that validates this blockchain
	SubnetID ids.ID `serialize:"true" json:"subnetID"`
	// A human readable name for the chain; need not be unique
	ChainName string `serialize:"true" json:"chainName"`
	// ID of the VM running on the new chain
	VMID ids.ID `serialize:"true" json:"vmID"`
	// IDs of the feature extensions running on the new chain
	FxIDs []ids.ID `serialize:"true" json:"fxIDs"`
	// Byte representation of genesis state of the new chain
	GenesisData []byte `serialize:"true" json:"genesisData"`
	// Authorizes this blockchain to be added to this subnet
	SubnetAuth verify.Verifiable `serialize:"true" json:"subnetAuthorization"`
}

UnsignedCreateChainTx is an unsigned CreateChainTx

func (*UnsignedCreateChainTx) AtomicOperations 

func (tx *UnsignedCreateChainTx) AtomicOperations() (ids.ID, *atomic.Requests, error)

func (*UnsignedCreateChainTx) Execute 

func (tx *UnsignedCreateChainTx) Execute(
	vm *VM,
	vs VersionedState,
	stx *Tx,
) (
	func() error,
	error,
)

Execute this transaction.

func (*UnsignedCreateChainTx) InputUTXOs 

func (tx *UnsignedCreateChainTx) InputUTXOs() ids.Set

func (*UnsignedCreateChainTx) SemanticVerify 

func (tx *UnsignedCreateChainTx) SemanticVerify(vm *VM, parentState MutableState, stx *Tx) error

Attempts to verify this transaction with the provided state.

func (*UnsignedCreateChainTx) SyntacticVerify 

func (tx *UnsignedCreateChainTx) SyntacticVerify(ctx *snow.Context) error

type UnsignedCreateSubnetTx 

type UnsignedCreateSubnetTx struct {
	// Metadata, inputs and outputs
	BaseTx `serialize:"true"`
	// Who is authorized to manage this subnet
	Owner Owner `serialize:"true" json:"owner"`
}

UnsignedCreateSubnetTx is an unsigned proposal to create a new subnet

func (*UnsignedCreateSubnetTx) AtomicOperations 

func (tx *UnsignedCreateSubnetTx) AtomicOperations() (ids.ID, *atomic.Requests, error)

func (*UnsignedCreateSubnetTx) Execute 

func (tx *UnsignedCreateSubnetTx) Execute(
	vm *VM,
	vs VersionedState,
	stx *Tx,
) (
	func() error,
	error,
)

Execute this transaction.

func (*UnsignedCreateSubnetTx) InitCtx 

func (tx *UnsignedCreateSubnetTx) InitCtx(ctx *snow.Context)

InitCtx sets the FxID fields in the inputs and outputs of this UnsignedCreateSubnetTx. Also sets the [ctx] to the given [vm.ctx] so that the addresses can be json marshalled into human readable format

func (*UnsignedCreateSubnetTx) InputUTXOs 

func (tx *UnsignedCreateSubnetTx) InputUTXOs() ids.Set

InputUTXOs for [DecisionTxs] will return an empty set to diffrentiate from the [AtomicTxs] input UTXOs

func (*UnsignedCreateSubnetTx) SemanticVerify 

func (tx *UnsignedCreateSubnetTx) SemanticVerify(vm *VM, parentState MutableState, stx *Tx) error

Attempts to verify this transaction with the provided state.

func (*UnsignedCreateSubnetTx) SyntacticVerify 

func (tx *UnsignedCreateSubnetTx) SyntacticVerify(ctx *snow.Context) error

SyntacticVerify verifies that this transaction is well-formed

type UnsignedDecisionTx 

type UnsignedDecisionTx interface {
	UnsignedTx

	// Execute this transaction with the provided state.
	Execute(vm *VM, vs VersionedState, stx *Tx) (
		onAcceptFunc func() error,
		err error,
	)

	// To maintain consistency with the Atomic txs
	InputUTXOs() ids.Set

	// AtomicOperations provides the requests to be written to shared memory.
	AtomicOperations() (ids.ID, *atomic.Requests, error)
}

UnsignedDecisionTx is an unsigned operation that can be immediately decided

type UnsignedExportTx 

type UnsignedExportTx struct {
	BaseTx `serialize:"true"`

	// Which chain to send the funds to
	DestinationChain ids.ID `serialize:"true" json:"destinationChain"`

	// Outputs that are exported to the chain
	ExportedOutputs []*avax.TransferableOutput `serialize:"true" json:"exportedOutputs"`
}

UnsignedExportTx is an unsigned ExportTx

func (*UnsignedExportTx) AtomicAccept 

func (tx *UnsignedExportTx) AtomicAccept(ctx *snow.Context, batch database.Batch) error

Accept this transaction.

func (*UnsignedExportTx) AtomicExecute 

func (tx *UnsignedExportTx) AtomicExecute(
	vm *VM,
	parentState MutableState,
	stx *Tx,
) (VersionedState, error)

Execute this transaction and return the versioned state.

func (*UnsignedExportTx) AtomicOperations 

func (tx *UnsignedExportTx) AtomicOperations() (ids.ID, *atomic.Requests, error)

AtomicOperations returns the shared memory requests

func (*UnsignedExportTx) Execute 

func (tx *UnsignedExportTx) Execute(
	vm *VM,
	vs VersionedState,
	stx *Tx,
) (func() error, error)

Execute this transaction.

func (*UnsignedExportTx) InitCtx 

func (tx *UnsignedExportTx) InitCtx(ctx *snow.Context)

InitCtx sets the FxID fields in the inputs and outputs of this UnsignedExportTx. Also sets the [ctx] to the given [vm.ctx] so that the addresses can be json marshalled into human readable format

func (*UnsignedExportTx) InputUTXOs 

func (tx *UnsignedExportTx) InputUTXOs() ids.Set

InputUTXOs returns an empty set

func (*UnsignedExportTx) SemanticVerify 

func (tx *UnsignedExportTx) SemanticVerify(vm *VM, parentState MutableState, stx *Tx) error

Attempts to verify this transaction with the provided state.

func (*UnsignedExportTx) SyntacticVerify 

func (tx *UnsignedExportTx) SyntacticVerify(ctx *snow.Context) error

SyntacticVerify this transaction is well-formed

type UnsignedImportTx 

type UnsignedImportTx struct {
	BaseTx `serialize:"true"`

	// Which chain to consume the funds from
	SourceChain ids.ID `serialize:"true" json:"sourceChain"`

	// Inputs that consume UTXOs produced on the chain
	ImportedInputs []*avax.TransferableInput `serialize:"true" json:"importedInputs"`
}

UnsignedImportTx is an unsigned ImportTx

func (*UnsignedImportTx) AtomicAccept 

func (tx *UnsignedImportTx) AtomicAccept(ctx *snow.Context, batch database.Batch) error

Accept this transaction and spend imported inputs We spend imported UTXOs here rather than in semanticVerify because we don't want to remove an imported UTXO in semanticVerify only to have the transaction not be Accepted. This would be inconsistent. Recall that imported UTXOs are not kept in a versionDB.

func (*UnsignedImportTx) AtomicExecute 

func (tx *UnsignedImportTx) AtomicExecute(
	vm *VM,
	parentState MutableState,
	stx *Tx,
) (VersionedState, error)

[AtomicExecute] to maintain consistency for the standard block.

func (*UnsignedImportTx) AtomicOperations 

func (tx *UnsignedImportTx) AtomicOperations() (ids.ID, *atomic.Requests, error)

AtomicOperations returns the shared memory requests

func (*UnsignedImportTx) Execute 

func (tx *UnsignedImportTx) Execute(
	vm *VM,
	vs VersionedState,
	stx *Tx,
) (func() error, error)

Execute this transaction.

func (*UnsignedImportTx) InitCtx 

func (tx *UnsignedImportTx) InitCtx(ctx *snow.Context)

InitCtx sets the FxID fields in the inputs and outputs of this UnsignedImportTx. Also sets the [ctx] to the given [vm.ctx] so that the addresses can be json marshalled into human readable format

func (*UnsignedImportTx) InputIDs 

func (tx *UnsignedImportTx) InputIDs() ids.Set

func (*UnsignedImportTx) InputUTXOs 

func (tx *UnsignedImportTx) InputUTXOs() ids.Set

InputUTXOs returns the UTXOIDs of the imported funds

func (*UnsignedImportTx) SemanticVerify 

func (tx *UnsignedImportTx) SemanticVerify(vm *VM, parentState MutableState, stx *Tx) error

Attempts to verify this transaction with the provided state.

func (*UnsignedImportTx) SyntacticVerify 

func (tx *UnsignedImportTx) SyntacticVerify(ctx *snow.Context) error

SyntacticVerify this transaction is well-formed

type UnsignedProposalTx 

type UnsignedProposalTx interface {
	UnsignedTx

	// Attempts to verify this transaction with the provided state.
	Execute(vm *VM, state MutableState, stx *Tx) (
		onCommitState VersionedState,
		onAbortState VersionedState,
		err error,
	)
	InitiallyPrefersCommit(vm *VM) bool
}

UnsignedProposalTx is an unsigned operation that can be proposed

type UnsignedRewardValidatorTx 

type UnsignedRewardValidatorTx struct {
	avax.Metadata

	// ID of the tx that created the delegator/validator being removed/rewarded
	TxID ids.ID `serialize:"true" json:"txID"`
	// contains filtered or unexported fields
}

UnsignedRewardValidatorTx is a transaction that represents a proposal to remove a validator that is currently validating from the validator set.

If this transaction is accepted and the next block accepted is a Commit block, the validator is removed and the address that the validator specified receives the staked AVAX as well as a validating reward.

If this transaction is accepted and the next block accepted is an Abort block, the validator is removed and the address that the validator specified receives the staked AVAX but no reward.

func (*UnsignedRewardValidatorTx) Execute 

func (tx *UnsignedRewardValidatorTx) Execute(
	vm *VM,
	parentState MutableState,
	stx *Tx,
) (
	VersionedState,
	VersionedState,
	error,
)

Execute this transaction.

The current validating set must have at least one member. The next validator to be removed must be the validator specified in this block. The next validator to be removed must be have an end time equal to the current 

chain timestamp.

func (*UnsignedRewardValidatorTx) InitCtx 

func (tx *UnsignedRewardValidatorTx) InitCtx(*snow.Context)

func (*UnsignedRewardValidatorTx) InitiallyPrefersCommit 

func (tx *UnsignedRewardValidatorTx) InitiallyPrefersCommit(*VM) bool

InitiallyPrefersCommit returns true if this node thinks the validator should receive a staking reward.

TODO: A validator should receive a reward only if they are sufficiently responsive and correct during the time they are validating. Right now they receive a reward if they're up (but not necessarily correct and responsive) for a sufficient amount of time

func (*UnsignedRewardValidatorTx) InputIDs 

func (tx *UnsignedRewardValidatorTx) InputIDs() ids.Set

func (*UnsignedRewardValidatorTx) SemanticVerify 

func (tx *UnsignedRewardValidatorTx) SemanticVerify(vm *VM, parentState MutableState, stx *Tx) error

Attempts to verify this transaction with the provided state.

func (*UnsignedRewardValidatorTx) SyntacticVerify 

func (tx *UnsignedRewardValidatorTx) SyntacticVerify(*snow.Context) error

type UnsignedTx 

type UnsignedTx interface {
	// TODO: Remove this initialization pattern from both the platformvm and the
	// avm.
	snow.ContextInitializable

	Initialize(unsignedBytes, signedBytes []byte)
	ID() ids.ID
	UnsignedBytes() []byte
	Bytes() []byte

	// InputIDs returns the set of inputs this transaction consumes
	InputIDs() ids.Set

	// Attempts to verify this transaction without any provided state.
	SyntacticVerify(ctx *snow.Context) error

	// Attempts to verify this transaction with the provided state.
	SemanticVerify(vm *VM, parentState MutableState, stx *Tx) error
}

UnsignedTx is an unsigned transaction

type VM 

type VM struct {
	Factory

	avax.AddressManager
	avax.AtomicUTXOManager
	// contains filtered or unexported fields
}

VM implements the snowman.ChainVM interface

func (*VM) AcceptBlock 

func (m *VM) AcceptBlock(b snowman.Block) error

func (*VM) AcceptTx 

func (m *VM) AcceptTx(tx *Tx) error

func (VM) AppGossip 

func (n VM) AppGossip(nodeID ids.ShortID, msgBytes []byte) error

func (VM) AppRequest 

func (n VM) AppRequest(nodeID ids.ShortID, requestID uint32, deadline time.Time, msgBytes []byte) error

func (VM) AppRequestFailed 

func (n VM) AppRequestFailed(nodeID ids.ShortID, requestID uint32) error

func (VM) AppResponse 

func (n VM) AppResponse(nodeID ids.ShortID, requestID uint32, msgBytes []byte) error

func (*VM) Bootstrapped 

func (vm *VM) Bootstrapped() error

Bootstrapped marks this VM as bootstrapped

func (*VM) Bootstrapping 

func (vm *VM) Bootstrapping() error

Bootstrapping marks this VM as bootstrapping

func (*VM) BuildBlock 

func (vm *VM) BuildBlock() (snowman.Block, error)

BuildBlock builds a block to be added to consensus

func (*VM) Clock 

func (vm *VM) Clock() *mockable.Clock

func (*VM) CodecRegistry 

func (vm *VM) CodecRegistry() codec.Registry

func (*VM) Connected 

func (vm *VM) Connected(vdrID ids.ShortID, nodeVersion version.Application) error

Connected implements validators.Connector

func (*VM) CreateHandlers 

func (vm *VM) CreateHandlers() (map[string]*common.HTTPHandler, error)

CreateHandlers returns a map where: * keys are API endpoint extensions * values are API handlers

func (*VM) CreateStaticHandlers 

func (vm *VM) CreateStaticHandlers() (map[string]*common.HTTPHandler, error)

CreateStaticHandlers returns a map where: * keys are API endpoint extensions * values are API handlers

func (*VM) Disconnected 

func (vm *VM) Disconnected(vdrID ids.ShortID) error

Disconnected implements validators.Connector

func (*VM) GetBlock 

func (vm *VM) GetBlock(blkID ids.ID) (snowman.Block, error)

GetBlock implements the snowman.ChainVM interface

func (*VM) GetCurrentHeight 

func (vm *VM) GetCurrentHeight() (uint64, error)

GetCurrentHeight returns the height of the last accepted block

func (*VM) GetValidatorSet 

func (vm *VM) GetValidatorSet(height uint64, subnetID ids.ID) (map[ids.ShortID]uint64, error)

GetValidatorSet returns the validator set at the specified height for the provided subnetID.

func (VM) GossipTx 

func (n VM) GossipTx(tx *Tx) error

func (*VM) HealthCheck 

func (vm *VM) HealthCheck() (interface{}, error)

HealthCheck implements the common.VM interface

func (*VM) Initialize 

func (vm *VM) Initialize(
	ctx *snow.Context,
	dbManager manager.Manager,
	genesisBytes []byte,
	upgradeBytes []byte,
	configBytes []byte,
	msgs chan<- common.Message,
	_ []*common.Fx,
	appSender common.AppSender,
) error

Initialize this blockchain. [vm.ChainManager] and [vm.vdrMgr] must be set before this function is called.

func (*VM) LastAccepted 

func (vm *VM) LastAccepted() (ids.ID, error)

LastAccepted returns the block most recently accepted

func (*VM) Logger 

func (vm *VM) Logger() logging.Logger

func (*VM) NotifyBlockReady 

func (vm *VM) NotifyBlockReady()

NotifyBlockReady tells the consensus engine that a new block is ready to be created

func (*VM) ParseBlock 

func (vm *VM) ParseBlock(b []byte) (snowman.Block, error)

ParseBlock implements the snowman.ChainVM interface

func (*VM) Preferred 

func (vm *VM) Preferred() (Block, error)

func (*VM) SetPreference 

func (vm *VM) SetPreference(blkID ids.ID) error

SetPreference sets the preferred block to be the one with ID [blkID]

func (*VM) Shutdown 

func (vm *VM) Shutdown() error

Shutdown this blockchain

func (*VM) Version 

func (vm *VM) Version() (string, error)

type ValidatedByArgs 

type ValidatedByArgs struct {
	// ValidatedBy returns the ID of the Subnet validating the blockchain with this ID
	BlockchainID ids.ID `json:"blockchainID"`
}

ValidatedByArgs is the arguments for calling ValidatedBy

type ValidatedByResponse 

type ValidatedByResponse struct {
	// ID of the Subnet validating the specified blockchain
	SubnetID ids.ID `json:"subnetID"`
}

ValidatedByResponse is the reply from calling ValidatedBy

type ValidatesArgs 

type ValidatesArgs struct {
	SubnetID ids.ID `json:"subnetID"`
}

ValidatesArgs are the arguments to Validates

type ValidatesResponse 

type ValidatesResponse struct {
	BlockchainIDs []ids.ID `json:"blockchainIDs"`
}

ValidatesResponse is the response from calling Validates

type Validator 

type Validator struct {
	// Node ID of the validator
	NodeID ids.ShortID `serialize:"true" json:"nodeID"`

	// Unix time this validator starts validating
	Start uint64 `serialize:"true" json:"start"`

	// Unix time this validator stops validating
	End uint64 `serialize:"true" json:"end"`

	// Weight of this validator used when sampling
	Wght uint64 `serialize:"true" json:"weight"`
}

Validator is a validator.

func (*Validator) BoundedBy 

func (v *Validator) BoundedBy(startTime, endTime time.Time) bool

BoundedBy returns true iff the period that [validator] validates is a (non-strict) subset of the time that [other] validates. Namely, startTime <= v.StartTime() <= v.EndTime() <= endTime

func (*Validator) Duration 

func (v *Validator) Duration() time.Duration

Duration is the amount of time that this validator will be in the validator set

func (*Validator) EndTime 

func (v *Validator) EndTime() time.Time

EndTime is the time that this validator will leave the validator set

func (*Validator) ID 

func (v *Validator) ID() ids.ShortID

ID returns the node ID of the validator

func (*Validator) StartTime 

func (v *Validator) StartTime() time.Time

StartTime is the time that this validator will enter the validator set

func (*Validator) Verify 

func (v *Validator) Verify() error

Verify validates the ID for this validator

func (*Validator) Weight 

func (v *Validator) Weight() uint64

Weight is this validator's weight when sampling

type ValidatorState 

type ValidatorState interface {
	CurrentStakerChainState() currentStakerChainState
	PendingStakerChainState() pendingStakerChainState
}

type ValidatorWeightDiff 

type ValidatorWeightDiff struct {
	Decrease bool   `serialize:"true"`
	Amount   uint64 `serialize:"true"`
}

type VersionedState 

type VersionedState interface {
	MutableState

	SetBase(MutableState)
	Apply(InternalState)
}

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