core

package
v0.7.3-alpha Latest Latest
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 Go to latest Published: Jan 24, 2019 License: Apache-2.0 Imports: 15 Imported by: 0

Documentation

Overview

Package core contains common definitions used by other modules.

Index

Constants

View Source 
const (
	// DynamicRoleUndefined is used for special cases.
	DynamicRoleUndefined = DynamicRole(iota)
	// DynamicRoleVirtualExecutor is responsible for current pulse CPU operations.
	DynamicRoleVirtualExecutor
	// DynamicRoleVirtualValidator is responsible for previous pulse CPU operations.
	DynamicRoleVirtualValidator
	// DynamicRoleLightExecutor is responsible for current pulse Disk operations.
	DynamicRoleLightExecutor
	// DynamicRoleLightValidator is responsible for previous pulse Disk operations.
	DynamicRoleLightValidator
	// DynamicRoleHeavyExecutor is responsible for permanent Disk operations.
	DynamicRoleHeavyExecutor
)
View Source 
const (
	StaticRoleUnknown = StaticRole(iota)
	StaticRoleVirtual
	StaticRoleHeavyMaterial
	StaticRoleLightMaterial
)
View Source 
const (
	// PulseNumberSize declares the number of bytes in the pulse number
	PulseNumberSize = 4
	// EntropySize declares the number of bytes in the pulse entropy
	EntropySize = 64
	// OriginIDSize declares the number of bytes in the origin id
	OriginIDSize = 16
)
View Source 
const (
	// FirstPulseNumber is the hardcoded first pulse number. Because first 65536 numbers are saved for the system's needs
	FirstPulseNumber = 65537
	// PulseNumberJet is a special pulse number value that signifies jet ID.
	PulseNumberJet = PulseNumber(1)
	// PulseNumberCurrent is a special pulse number value that signifies current pulse number.
	PulseNumberCurrent = PulseNumber(2)
)
View Source 
const (
	// RecordHashSize is a record hash size. We use 224-bit SHA-3 hash (28 bytes).
	RecordHashSize = 28
	// RecordIDSize is relative record address.
	RecordIDSize = PulseNumberSize + RecordHashSize
	// RecordRefSize is absolute records address (including domain ID).
	RecordRefSize = RecordIDSize * 2
	// RecordRefIDSeparator is character that separates RecordID from DomainID in serialized RecordRef
	RecordRefIDSeparator = "."
)

Variables

View Source 
var (
	// ErrUnknown returned when error type cannot be defined.
	ErrUnknown = errors.New("unknown error")
	// ErrDeactivated returned when requested object is deactivated.
	ErrDeactivated = errors.New("object is deactivated")
	// ErrStateNotAvailable returned when requested object is deactivated.
	ErrStateNotAvailable = errors.New("object state is not available")
	// ErrHotDataTimeout returned when no hot data received for a specific jet
	ErrHotDataTimeout = errors.New("no hot data received for a specific jet")
)
View Source 
var (
	// TODOJetID temporary stub for passing jet ID in ledger functions
	// on period Jet ID full implementation
	// TODO: remove it after jets support readyness - @nordicdyno 5.Dec.2018
	TODOJetID = *NewRecordID(PulseNumberJet, nil)
	DomainID  = *NewRecordID(0, nil)
)
View Source 
var AllStaticRoles = []StaticRole{
	StaticRoleVirtual,
	StaticRoleLightMaterial,
	StaticRoleHeavyMaterial,
}

AllStaticRoles is an array of all possible StaticRoles.

View Source 
var ErrNoPulseInContext = errors.New("No pulse number in context")
View Source 
var GenesisPulse = &Pulse{
	PulseNumber:      FirstPulseNumber,
	Entropy:          [EntropySize]byte{},
	EpochPulseNumber: 1,
	PulseTimestamp:   firstPulseDate,
}

GenesisPulse is a first pulse for the system because first 2 bits of pulse number and first 65536 pulses a are used by system needs and pulse numbers are related to the seconds of Unix time for calculation pulse numbers we use the formula = unix.Now() - firstPulseDate + 65536

Functions

func ContextWithMessageBus added in v0.6.3 

func ContextWithMessageBus(ctx context.Context, bus MessageBus) context.Context

ContextWithMessageBus returns new context with provided message bus.

func Deserialize added in v0.6.3 

func Deserialize(data []byte, to interface{}) error

Deserialize deserializes data to specific interface

func KVSize added in v0.7.5 

func KVSize(kvs []KV) (amount int64)

KVSize returns size of key/value array in bytes.

func Serialize added in v0.6.3 

func Serialize(o interface{}) ([]byte, error)

Serialize serializes interface

func UnMarshalResponse added in v0.6.0 

func UnMarshalResponse(resp []byte, typeHolders []interface{}) ([]interface{}, error)

UnMarshalResponse unmarshals return values by cbor

Types

type APIRunner added in v0.6.3 

type APIRunner interface {
	IsAPIRunner() bool
}

APIRunner

type Arguments 

type Arguments []byte

Arguments is a dedicated type for arguments, that represented as binary cbored blob

func MarshalArgs added in v0.6.0 

func MarshalArgs(args ...interface{}) (Arguments, error)

MarshalArgs marshals arguments by cbor

func (*Arguments) MarshalJSON added in v0.7.5 

func (args *Arguments) MarshalJSON() ([]byte, error)

MarshalJSON uncbor Arguments slice recursively

type ArtifactManager 

type ArtifactManager interface {
	// GenesisRef returns the root record reference.
	//
	// Root record is the parent for all top-level records.
	GenesisRef() *RecordRef

	// RegisterRequest creates request record in storage.
	RegisterRequest(ctx context.Context, object RecordRef, parcel Parcel) (*RecordID, error)

	// RegisterValidation marks provided object state as approved or disapproved.
	//
	// When fetching object, validity can be specified.
	RegisterValidation(ctx context.Context, object RecordRef, state RecordID, isValid bool, validationMessages []Message) error

	// RegisterResult saves VM method call result.
	RegisterResult(ctx context.Context, object, request RecordRef, payload []byte) (*RecordID, error)

	// GetCode returns code from code record by provided reference according to provided machine preference.
	//
	// This method is used by VM to fetch code for execution.
	GetCode(ctx context.Context, ref RecordRef) (CodeDescriptor, error)

	// GetObject returns descriptor for provided state.
	//
	// If provided state is nil, the latest state will be returned (with deactivation check). Returned descriptor will
	// provide methods for fetching all related data.
	GetObject(ctx context.Context, head RecordRef, state *RecordID, approved bool) (ObjectDescriptor, error)

	// HasPendingRequests returns true if object has unclosed requests.
	HasPendingRequests(ctx context.Context, object RecordRef) (bool, error)

	// GetDelegate returns provided object's delegate reference for provided type.
	//
	// Object delegate should be previously created for this object. If object delegate does not exist, an error will
	// be returned.
	GetDelegate(ctx context.Context, head, asType RecordRef) (*RecordRef, error)

	// GetChildren returns children iterator.
	//
	// During iteration children refs will be fetched from remote source (parent object).
	GetChildren(ctx context.Context, parent RecordRef, pulse *PulseNumber) (RefIterator, error)

	// DeclareType creates new type record in storage.
	//
	// Type is a contract interface. It contains one method signature.
	DeclareType(ctx context.Context, domain, request RecordRef, typeDec []byte) (*RecordID, error)

	// DeployCode creates new code record in storage.
	//
	// Code records are used to activate prototype.
	DeployCode(ctx context.Context, domain, request RecordRef, code []byte, machineType MachineType) (*RecordID, error)

	// ActivatePrototype creates activate object record in storage. Provided prototype reference will be used as objects prototype
	// memory as memory of created object. If memory is not provided, the prototype default memory will be used.
	//
	// Request reference will be this object's identifier and referred as "object head".
	ActivatePrototype(
		ctx context.Context,
		domain, request, parent, code RecordRef,
		memory []byte,
	) (ObjectDescriptor, error)

	// ActivateObject creates activate object record in storage. If memory is not provided, the prototype default
	// memory will be used.
	//
	// Request reference will be this object's identifier and referred as "object head".
	ActivateObject(
		ctx context.Context,
		domain, request, parent, prototype RecordRef,
		asDelegate bool,
		memory []byte,
	) (ObjectDescriptor, error)

	// UpdatePrototype creates amend object record in storage. Provided reference should be a reference to the head of
	// the prototype. Provided memory well be the new object memory.
	//
	// Returned reference will be the latest object state (exact) reference.
	UpdatePrototype(
		ctx context.Context,
		domain, request RecordRef,
		obj ObjectDescriptor,
		memory []byte,
		code *RecordRef,
	) (ObjectDescriptor, error)

	// UpdateObject creates amend object record in storage. Provided reference should be a reference to the head of the
	// object. Provided memory well be the new object memory.
	//
	// Returned reference will be the latest object state (exact) reference.
	UpdateObject(
		ctx context.Context,
		domain, request RecordRef,
		obj ObjectDescriptor,
		memory []byte,
	) (ObjectDescriptor, error)

	// DeactivateObject creates deactivate object record in storage. Provided reference should be a reference to the head
	// of the object. If object is already deactivated, an error should be returned.
	//
	// Deactivated object cannot be changed.
	DeactivateObject(ctx context.Context, domain, request RecordRef, obj ObjectDescriptor) (*RecordID, error)

	// State returns hash state for artifact manager.
	State() ([]byte, error)
}

ArtifactManager is a high level storage interface.

type ArtifactManagerMessageHandler added in v0.7.5 

type ArtifactManagerMessageHandler interface {
	ResetEarlyRequestCircuitBreaker(context.Context)
	CloseEarlyRequestCircuitBreakerForJet(context.Context, RecordID)
}

type AuthorizationCertificate added in v0.7.5 

type AuthorizationCertificate interface {
	NodeMeta

	GetRole() StaticRole
	SerializeNodePart() []byte
	GetDiscoverySigns() map[*RecordRef][]byte
}

AuthorizationCertificate interface provides methods to manage info about node from it certificate

type Cascade added in v0.2.0 

type Cascade struct {
	// NodeIds contains the slice of node identifiers that will receive the message
	NodeIds []RecordRef
	// GeneratedEntropy is used for pseudorandom cascade building
	Entropy Entropy
	// Replication factor is the number of children nodes of the each node of the cascade
	ReplicationFactor uint
}

Cascade contains routing data for cascade sending

type Certificate added in v0.6.1 

type Certificate interface {
	AuthorizationCertificate

	GetRootDomainReference() *RecordRef
	GetDiscoveryNodes() []DiscoveryNode
}

Certificate interface provides methods to manage keys

type CertificateManager added in v0.7.5 

type CertificateManager interface {
	GetCertificate() Certificate
	VerifyAuthorizationCertificate(authCert AuthorizationCertificate) (bool, error)
	NewUnsignedCertificate(pKey string, role string, nodeRef string) (Certificate, error)
}

CertificateManager interface provides methods to manage nodes certificate

type CodeDescriptor 

type CodeDescriptor interface {
	// Ref returns reference to represented code record.
	Ref() *RecordRef

	// MachineType returns code machine type for represented code.
	MachineType() MachineType

	// Code returns code data.
	Code() ([]byte, error)
}

CodeDescriptor represents meta info required to fetch all code data.

type Component 

type Component interface {
	Start(ctx context.Context, components Components) error
	Stop(ctx context.Context) error
}

Component controller methods DEPRECATED and should be removed

type Components 

type Components struct {
	NodeNetwork NodeNetwork
	LogicRunner LogicRunner
	Ledger      Ledger
	Network     Network
	MessageBus  MessageBus
}

Components is a registry for other core interfaces Fields order are important and represent start and stop order in the daemon DEPRECATED and should be removed after drop TmpLedger, DO NOT EDIT

type ContractRequester added in v0.6.3 

type ContractRequester interface {
	SendRequest(ctx context.Context, ref *RecordRef, method string, argsIn []interface{}) (Reply, error)
	// CallMethod - low level calls contract
	CallMethod(ctx context.Context, base Message, async bool,
		ref *RecordRef, method string, argsIn Arguments,
		mustPrototype *RecordRef) (Reply, error)
	CallConstructor(ctx context.Context, base Message, async bool,
		prototype *RecordRef, to *RecordRef, method string, argsIn Arguments, saveType int) (*RecordRef, error)
}

ContractRequester is the global contract requester handler. Other system parts communicate with contract requester through it.

type CryptographyService added in v0.6.3 

type CryptographyService interface {
	GetPublicKey() (crypto.PublicKey, error)
	Sign([]byte) (*Signature, error)
	Verify(crypto.PublicKey, Signature, []byte) bool
}

type DelegationToken added in v0.6.3 

type DelegationToken interface {
	// Type returns token type.
	Type() DelegationTokenType

	// Verify checks against the token. See also delegationtoken.Verify(...)
	Verify(parcel Parcel) (bool, error)
}

DelegationToken is the base interface for delegation tokens

type DelegationTokenFactory added in v0.6.3 

type DelegationTokenFactory interface {
	IssuePendingExecution(msg Message, pulse PulseNumber) (DelegationToken, error)
	IssueGetObjectRedirect(sender *RecordRef, redirectedMessage Message) (DelegationToken, error)
	IssueGetChildrenRedirect(sender *RecordRef, redirectedMessage Message) (DelegationToken, error)
	IssueGetCodeRedirect(sender *RecordRef, redirectedMessage Message) (DelegationToken, error)
	Verify(parcel Parcel) (bool, error)
}

type DelegationTokenType added in v0.6.3 

type DelegationTokenType byte

DelegationTokenType is an enum type of delegation token 

const (
	// DTTypePendingExecution allows to continue method calls
	DTTypePendingExecution DelegationTokenType = iota + 1
	DTTypeGetObjectRedirect
	DTTypeGetChildrenRedirect
	DTTypeGetCodeRedirect
)

func (DelegationTokenType) String added in v0.6.3 

func (i DelegationTokenType) String() string

type DiscoveryNode added in v0.6.3 

type DiscoveryNode interface {
	NodeMeta

	GetHost() string
}

type DynamicRole added in v0.6.3 

type DynamicRole int

DynamicRole is number representing a node role.

func (DynamicRole) IsVirtualRole added in v0.7.5 

func (r DynamicRole) IsVirtualRole() bool

IsVirtualRole checks if node role is virtual (validator or executor).

type Entropy added in v0.2.0 

type Entropy [EntropySize]byte

Entropy is 64 random bytes used in every pseudo-random calculations.

type Genesis added in v0.6.3 

type Genesis interface{}

Genesis is the global genesis handler. Other system parts communicate with genesis through it.

type GenesisDataProvider added in v0.6.3 

type GenesisDataProvider interface {
	GetRootDomain(ctx context.Context) *RecordRef
	GetNodeDomain(ctx context.Context) (*RecordRef, error)
	GetRootMember(ctx context.Context) (*RecordRef, error)
}

GenesisDataProvider is the global genesis data provider handler. Other system parts communicate with genesis data provider through it.

type GlobalInsolarLock added in v0.6.3 

type GlobalInsolarLock interface {
	Acquire(ctx context.Context)
	Release(ctx context.Context)
}

GlobalInsolarLock is lock of all incoming and outcoming network calls. It's not intended to be used in multiple threads. And main use of it is `Set` method of `PulseManager`.

type GlobuleID added in v0.6.3 

type GlobuleID uint32

GlobuleID is the ID of the globe

type Hasher added in v0.6.3 

type Hasher interface {
	hash.Hash

	Hash([]byte) []byte
}

type HeavySync added in v0.6.3 

type HeavySync interface {
	Start(ctx context.Context, jet RecordID, pn PulseNumber) error
	Store(ctx context.Context, jet RecordID, pn PulseNumber, kvs []KV) error
	Stop(ctx context.Context, jet RecordID, pn PulseNumber) error
	Reset(ctx context.Context, jet RecordID, pn PulseNumber) error
}

HeavySync provides methods for sync on heavy node.

type JetCoordinator added in v0.0.6 

type JetCoordinator interface {
	// Me returns current node.
	Me() RecordRef

	// IsAuthorized checks for role on concrete pulse for the address.
	IsAuthorized(ctx context.Context, role DynamicRole, obj RecordID, pulse PulseNumber, node RecordRef) (bool, error)

	// QueryRole returns node refs responsible for role bound operations for given object and pulse.
	QueryRole(ctx context.Context, role DynamicRole, obj RecordID, pulse PulseNumber) ([]RecordRef, error)

	VirtualExecutorForObject(ctx context.Context, objID RecordID, pulse PulseNumber) (*RecordRef, error)
	VirtualValidatorsForObject(ctx context.Context, objID RecordID, pulse PulseNumber) ([]RecordRef, error)

	LightExecutorForObject(ctx context.Context, objID RecordID, pulse PulseNumber) (*RecordRef, error)
	LightValidatorsForObject(ctx context.Context, objID RecordID, pulse PulseNumber) ([]RecordRef, error)
	// LightExecutorForJet calculates light material executor for provided jet.
	LightExecutorForJet(ctx context.Context, jetID RecordID, pulse PulseNumber) (*RecordRef, error)
	LightValidatorsForJet(ctx context.Context, jetID RecordID, pulse PulseNumber) ([]RecordRef, error)

	Heavy(ctx context.Context, pulse PulseNumber) (*RecordRef, error)
}

JetCoordinator provides methods for calculating Jet affinity (e.g. to which Jet a message should be sent).

type KV added in v0.6.3 

type KV struct {
	K []byte
	V []byte
}

KV is a generic key/value struct.

type KeyProcessor added in v0.6.3 

type KeyProcessor interface {
	GeneratePrivateKey() (crypto.PrivateKey, error)
	ExtractPublicKey(crypto.PrivateKey) crypto.PublicKey

	ExportPublicKeyPEM(crypto.PublicKey) ([]byte, error)
	ImportPublicKeyPEM([]byte) (crypto.PublicKey, error)

	ExportPrivateKeyPEM(crypto.PrivateKey) ([]byte, error)
	ImportPrivateKeyPEM([]byte) (crypto.PrivateKey, error)

	ExportPublicKeyBinary(crypto.PublicKey) ([]byte, error)
	ImportPublicKeyBinary([]byte) (crypto.PublicKey, error)
}

type KeyStore added in v0.6.3 

type KeyStore interface {
	GetPrivateKey(string) (crypto.PrivateKey, error)
}

type Ledger 

type Ledger interface {
	// GetArtifactManager returns artifact manager to work with.
	GetArtifactManager() ArtifactManager

	// GetJetCoordinator returns jet coordinator to work with.
	GetJetCoordinator() JetCoordinator

	// GetPulseManager returns pulse manager to work with.
	GetPulseManager() PulseManager

	// GetLocalStorage returns local storage to work with.
	GetLocalStorage() LocalStorage
}

Ledger is the global ledger handler. Other system parts communicate with ledger through it. FIXME: THIS INTERFACE IS DEPRECATED. USE DI.

type LocalStorage added in v0.6.3 

type LocalStorage interface {
	// Set saves data in storage.
	Set(ctx context.Context, pulse PulseNumber, key []byte, data []byte) error
	// Get retrieves data from storage.
	Get(ctx context.Context, pulse PulseNumber, key []byte) ([]byte, error)
	// Iterate iterates over all record with specified prefix and calls handler with key and value of that record.
	//
	// The key will be returned without prefix (e.g. the remaining slice) and value will be returned as it was saved.
	Iterate(ctx context.Context, pulse PulseNumber, prefix []byte, handler func(k, v []byte) error) error
}

LocalStorage allows a node to save local data.

type Logger added in v0.0.6 

type Logger interface {
	// SetLevel sets log level.
	SetLevel(string) error
	// GetLevel gets log level.
	GetLevel() string

	// Debug logs a message at level Debug.
	Debug(...interface{})
	// Debugln logs a message at level Debug.
	Debugln(...interface{})
	// Debugf formatted logs a message at level Debug.
	Debugf(string, ...interface{})

	// Info logs a message at level Info.
	Info(...interface{})
	// Infoln logs a message at level Info.
	Infoln(...interface{})
	// Infof formatted logs a message at level Info.
	Infof(string, ...interface{})

	// Warn logs a message at level Warn.
	Warn(...interface{})
	// Warnln logs a message at level Warn.
	Warnln(...interface{})
	// Warnf formatted logs a message at level Warn.
	Warnf(string, ...interface{})

	// Error logs a message at level Error.
	Error(...interface{})
	// Errorln logs a message at level Error.
	Errorln(...interface{})
	// Errorf formatted logs a message at level Error.
	Errorf(string, ...interface{})

	// Fatal logs a message at level Fatal and than call os.exit().
	Fatal(...interface{})
	// Fatalln logs a message at level Fatal and than call os.exit().
	Fatalln(...interface{})
	// Fatalf formatted logs a message at level Fatal and than call os.exit().
	Fatalf(string, ...interface{})

	// Panic logs a message at level Panic and than call panic().
	Panic(...interface{})
	// Panicln logs a message at level Panic and than call panic().
	Panicln(...interface{})
	// Panicf formatted logs a message at level Panic and than call panic().
	Panicf(string, ...interface{})

	// SetOutput sets the output destination for the logger.
	SetOutput(w io.Writer)
	// WithFields return copy of Logger with predefined fields.
	WithFields(map[string]interface{}) Logger
	// WithField return copy of Logger with predefined single field.
	WithField(string, interface{}) Logger
}

Logger is the interface for loggers used in the Insolar components.

type LogicCallContext added in v0.0.6 

type LogicCallContext struct {
	Mode            string     // either "execution" or "validation"
	Callee          *RecordRef // Contract that was called
	Request         *RecordRef // ref of request
	Prototype       *RecordRef // Image of the callee
	Code            *RecordRef // ref of contract code
	CallerPrototype *RecordRef // Image of the caller
	Parent          *RecordRef // Parent of the callee
	Caller          *RecordRef // Contract that made the call
	Time            time.Time  // Time when call was made
	Pulse           Pulse      // Number of the pulse
	TraceID         string
}

LogicCallContext is a context of contract execution

type LogicRunner 

type LogicRunner interface {
	Execute(context.Context, Parcel) (res Reply, err error)
	HandleValidateCaseBindMessage(context.Context, Parcel) (res Reply, err error)
	HandleValidationResultsMessage(context.Context, Parcel) (res Reply, err error)
	HandleExecutorResultsMessage(context.Context, Parcel) (res Reply, err error)
	OnPulse(context.Context, Pulse) error
}

LogicRunner is an interface that should satisfy logic executor

type MachineLogicExecutor 

type MachineLogicExecutor interface {
	CallMethod(
		ctx context.Context, callContext *LogicCallContext,
		code RecordRef, data []byte,
		method string, args Arguments,
	) (
		newObjectState []byte, methodResults Arguments, err error,
	)
	CallConstructor(
		ctx context.Context, callContext *LogicCallContext,
		code RecordRef, name string, args Arguments,
	) (
		objectState []byte, err error,
	)
	Stop() error
}

MachineLogicExecutor is an interface for implementers of one particular machine type

type MachineType 

type MachineType int

MachineType is a type of virtual machine 

const (
	MachineTypeNotExist             = 0
	MachineTypeBuiltin  MachineType = iota + 1
	MachineTypeGoPlugin

	MachineTypesLastID
)

Real constants of MachineType

type Message 

type Message interface {
	// Type returns message type.
	Type() MessageType

	// GetCaller returns initiator of this event.
	GetCaller() *RecordRef

	// DefaultTarget returns of target of this event.
	DefaultTarget() *RecordRef

	// DefaultRole returns role for this event
	DefaultRole() DynamicRole

	// AllowedSenderObjectAndRole extracts information from message
	// verify sender required to 's "caller" for sender
	// verification purpose. If nil then check of sender's role is not
	// provided by the message bus
	AllowedSenderObjectAndRole() (*RecordRef, DynamicRole)
}

Message is a routable packet, ATM just a method call

type MessageBus added in v0.4.0 

type MessageBus interface {
	// Send an `Message` and get a `Reply` or error from remote host.
	Send(context.Context, Message, *MessageSendOptions) (Reply, error)
	// Register saves message handler in the registry. Only one handler can be registered for a message type.
	Register(p MessageType, handler MessageHandler) error
	// MustRegister is a Register wrapper that panics if an error was returned.
	MustRegister(p MessageType, handler MessageHandler)

	// NewPlayer creates a new player from stream. This is a very long operation, as it saves replies in storage until the
	// stream is exhausted.
	//
	// Player can be created from MessageBus and passed as MessageBus instance.
	NewPlayer(ctx context.Context, reader io.Reader) (MessageBus, error)
	// NewRecorder creates a new recorder with unique tape that can be used to store message replies.
	//
	// Recorder can be created from MessageBus and passed as MessageBus instance.s
	NewRecorder(ctx context.Context, currentPulse Pulse) (MessageBus, error)

	// Called each new pulse, cleans next pulse messages buffer
	OnPulse(context.Context, Pulse) error
}

MessageBus interface

func MessageBusFromContext added in v0.6.3 

func MessageBusFromContext(ctx context.Context, fallback MessageBus) MessageBus

MessageBusFromContext returns MessageBus from context. If provided context does not have MessageBus, fallback will be returned.

type MessageHandler added in v0.4.0 

type MessageHandler func(context.Context, Parcel) (Reply, error)

MessageHandler is a function for message handling. It should be registered via Register method.

type MessageSendOptions added in v0.6.3 

type MessageSendOptions struct {
	Receiver *RecordRef
	Token    DelegationToken
}

MessageSendOptions represents options for message sending.

func (*MessageSendOptions) Safe added in v0.6.3 

func (o *MessageSendOptions) Safe() *MessageSendOptions

Safe returns original options, falling back on defaults if nil.

type MessageSignature added in v0.6.3 

type MessageSignature interface {
	GetSign() []byte
	GetSender() RecordRef
}

type MessageType added in v0.4.0 

type MessageType byte

MessageType is an enum type of message. 

const (

	// TypeCallMethod calls method and returns request
	TypeCallMethod MessageType = iota
	// TypeCallConstructor is a message for calling constructor and obtain its reply
	TypeCallConstructor
	// TypePutResults when execution finishes, tell results to requester
	TypeReturnResults
	// TypeExecutorResults message that goes to new Executor to validate previous Executor actions through CaseBind
	TypeExecutorResults
	// TypeValidateCaseBind sends CaseBind form Executor to Validators for redo all actions
	TypeValidateCaseBind
	// TypeValidationResults sends from Validator to new Executor with results of validation actions of previous Executor
	TypeValidationResults
	// TypePendingFinished is sent by the old executor to the current executor when pending execution finishes
	TypePendingFinished
	// TypeStillExecuting is sent by an old executor on pulse switch if it wants to continue executing
	// to the current executor
	TypeStillExecuting

	// TypeGetCode retrieves code from storage.
	TypeGetCode
	// TypeGetObject retrieves object from storage.
	TypeGetObject
	// TypeGetDelegate retrieves object represented as provided type.
	TypeGetDelegate
	// TypeGetChildren retrieves object's children.
	TypeGetChildren
	// TypeUpdateObject amends object.
	TypeUpdateObject
	// TypeRegisterChild registers child on the parent object.
	TypeRegisterChild
	// TypeJetDrop carries jet drop to validators
	TypeJetDrop
	// TypeSetRecord saves record in storage.
	TypeSetRecord
	// TypeValidateRecord saves record in storage.
	TypeValidateRecord
	// TypeSetBlob saves blob in storage.
	TypeSetBlob
	// TypeGetObjectIndex fetches object index from storage.
	TypeGetObjectIndex
	// TypeGetPendingRequests fetches pending requests for object.
	TypeGetPendingRequests
	// TypeHotRecords saves hot-records in storage.
	TypeHotRecords
	// TypeGetJet requests to calculate a jet for provided object.
	TypeGetJet
	// TypeAbandonedRequestsNotification informs virtual node about unclosed requests.
	TypeAbandonedRequestsNotification

	// TypeValidationCheck checks if validation of a particular record can be performed.
	TypeValidationCheck

	// TypeHeavyStartStop carries start/stop signal for heavy replication.
	TypeHeavyStartStop
	// TypeHeavyPayload carries Key/Value records for replication to Heavy Material node.
	TypeHeavyPayload
	// TypeHeavyReset resets current sync (on errors)
	TypeHeavyReset

	// TypeBootstrapRequest used for bootstrap object generation.
	TypeBootstrapRequest

	// TypeNodeSignRequest used to request sign for new node
	TypeNodeSignRequest
)

func (MessageType) String added in v0.5.0 

func (i MessageType) String() string

type Network 

type Network interface {
	// SendParcel sends a message.
	SendMessage(nodeID RecordRef, method string, msg Parcel) ([]byte, error)
	// SendCascadeMessage sends a message.
	SendCascadeMessage(data Cascade, method string, msg Parcel) error
	// RemoteProcedureRegister is remote procedure register func.
	RemoteProcedureRegister(name string, method RemoteProcedure)
}

Network is interface for network modules facade.

type NetworkCoordinator added in v0.6.0 

type NetworkCoordinator interface {
	// GetCert returns certificate object by node reference, using discovery nodes for signing
	GetCert(context.Context, *RecordRef) (Certificate, error)

	// ValidateCert checks certificate signature
	ValidateCert(context.Context, AuthorizationCertificate) (bool, error)

	// SetPulse uses PulseManager component for saving pulse info
	SetPulse(ctx context.Context, pulse Pulse) error

	// IsStarted returns true if component was started and false in other way
	IsStarted() bool
}

NetworkCoordinator encapsulates logic of network configuration

type NetworkState added in v0.6.3 

type NetworkState int

NetworkState type for bootstrapping process 

const (
	// NoNetworkState state means that nodes doesn`t match majority_rule
	NoNetworkState NetworkState = iota
	// VoidNetworkState state means that nodes have not complete min_role_count rule for proper work
	VoidNetworkState
	// JetlessNetworkState state means that every Jet need proof completeness of stored data
	JetlessNetworkState
	// AuthorizationNetworkState state means that every node need to validate ActiveNodeList using NodeDomain
	AuthorizationNetworkState
	// CompleteNetworkState state means network is ok and ready for proper work
	CompleteNetworkState
)

func (NetworkState) String added in v0.6.3 

func (i NetworkState) String() string

type NetworkSwitcher added in v0.6.3 

type NetworkSwitcher interface {
	// GetState method returns current network state
	GetState() NetworkState
	// OnPulse method checks current state and finds out reasons to update this state
	OnPulse(context.Context, Pulse) error
}

NetworkSwitcher is a network FSM using for bootstrapping

type Node added in v0.6.2 

type Node interface {
	// ID is the unique identifier of the node
	ID() RecordRef
	// ShortID get short ID of node
	ShortID() ShortNodeID
	// Role is the candidate Role for the node
	Role() StaticRole
	// PublicKey is the public key of the node
	PublicKey() crypto.PublicKey
	// PhysicalAddress is the network address of the node
	PhysicalAddress() string
	// GetGlobuleID returns node current globule id
	GetGlobuleID() GlobuleID
	// Version of node software
	Version() string
}

type NodeMeta added in v0.6.3 

type NodeMeta interface {
	GetNodeRef() *RecordRef
	GetPublicKey() crypto.PublicKey
}

type NodeNetwork added in v0.6.2 

type NodeNetwork interface {
	// GetOrigin get active node for the current insolard. Returns nil if the current insolard is not an active node.
	GetOrigin() Node
	// GetActiveNode get active node by its reference. Returns nil if node is not found.
	GetActiveNode(ref RecordRef) Node
	// GetActiveNodes get active nodes.
	GetActiveNodes() []Node
	// GetActiveNodesByRole get active nodes by role
	GetActiveNodesByRole(role DynamicRole) []RecordRef
	// GetCloudHash returns current cloud hash
	GetCloudHash() []byte
}

type ObjectDescriptor 

type ObjectDescriptor interface {
	// HeadRef returns head reference to represented object record.
	HeadRef() *RecordRef

	// StateID returns reference to object state record.
	StateID() *RecordID

	// Memory fetches object memory from storage.
	Memory() []byte

	// IsPrototype determines if the object is a prototype.
	IsPrototype() bool

	// Code returns code reference.
	Code() (*RecordRef, error)

	// Prototype returns prototype reference.
	Prototype() (*RecordRef, error)

	// Children returns object's children references.
	Children(pulse *PulseNumber) (RefIterator, error)

	// ChildPointer returns the latest child for this object.
	ChildPointer() *RecordID

	// Parent returns object's parent.
	Parent() *RecordRef
}

ObjectDescriptor represents meta info required to fetch all object data.

type Parcel added in v0.6.3 

type Parcel interface {
	Message
	MessageSignature

	Message() Message
	Context(context.Context) context.Context

	Pulse() PulseNumber

	DelegationToken() DelegationToken
}

Parcel by senders private key.

type PlatformCryptographyScheme added in v0.6.3 

type PlatformCryptographyScheme interface {
	PublicKeySize() int
	SignatureSIze() int

	ReferenceHasher() Hasher
	IntegrityHasher() Hasher

	Signer(crypto.PrivateKey) Signer
	Verifier(crypto.PublicKey) Verifier
}

type Pulse added in v0.2.0 

type Pulse struct {
	PulseNumber     PulseNumber
	PrevPulseNumber PulseNumber
	NextPulseNumber PulseNumber

	PulseTimestamp   int64
	EpochPulseNumber int
	OriginID         [OriginIDSize]byte

	Entropy Entropy
	Signs   map[string]PulseSenderConfirmation
}

Pulse is base data structure for a pulse.

type PulseDistributor added in v0.7.5 

type PulseDistributor interface {
	// Distribute distributes a pulse across the network.
	Distribute(context.Context, Pulse)
}

PulseDistributor is interface for pulse distribution.

type PulseManager added in v0.2.0 

type PulseManager interface {
	// Set set's new pulse and closes current jet drop. If dry is true, nothing will be saved to storage.
	Set(ctx context.Context, pulse Pulse, persist bool) error
}

PulseManager provides Ledger's methods related to Pulse.

type PulseNumber added in v0.0.6 

type PulseNumber uint32

PulseNumber is a sequential number of Pulse. Upper 2 bits are reserved for use in references (scope), must be zero otherwise. Valid Absolute PulseNum must be >65536. If PulseNum <65536 it is a relative PulseNum

func CalculatePulseNumber added in v0.4.0 

func CalculatePulseNumber(now time.Time) PulseNumber

CalculatePulseNumber is helper for calculating next pulse number, when a network is being started

func NewPulseNumber added in v0.6.3 

func NewPulseNumber(buf []byte) PulseNumber

NewPulseNumber creates pulse number from bytes.

func NewPulseNumberFromContext 

func NewPulseNumberFromContext(ctx context.Context) (PulseNumber, error)

NewPulseNumberFromContext returns PulseNumber stored in context or error.

func (PulseNumber) Bytes added in v0.2.0 

func (pn PulseNumber) Bytes() []byte

Bytes serializes pulse number.

func (*PulseNumber) ToContext 

func (pn *PulseNumber) ToContext(ctx context.Context) context.Context

ToContext adds PulseNumber to context.

type PulseRange added in v0.6.3 

type PulseRange struct {
	Begin PulseNumber
	End   PulseNumber
}

PulseRange represents range of pulses.

func (*PulseRange) String added in v0.6.3 

func (pr *PulseRange) String() string

type PulseSenderConfirmation added in v0.4.0 

type PulseSenderConfirmation struct {
	PulseNumber     PulseNumber
	ChosenPublicKey string
	Entropy         Entropy
	Signature       []byte
}

PulseSenderConfirmation contains confirmations of the pulse from other pulsars Because the system is using BFT for consensus between pulsars, because of it All pulsar send to the chosen pulsar their confirmations Every node in the network can verify the signatures

type PulseStorage added in v0.7.5 

type PulseStorage interface {
	Current(ctx context.Context) (*Pulse, error)
}

PulseStorage provides the interface for fetching current pulse of the system

type RecordID added in v0.4.0 

type RecordID [RecordIDSize]byte

RecordID is a unified record ID.

func NewIDFromBase58 added in v0.7.5 

func NewIDFromBase58(str string) (*RecordID, error)

NewIDFromBase58 deserializes RecordID from base58 encoded string.

func NewRecordID added in v0.6.2 

func NewRecordID(pulse PulseNumber, hash []byte) *RecordID

NewRecordID generates RecordID byte representation.

func (*RecordID) Bytes added in v0.5.0 

func (id *RecordID) Bytes() []byte

Bytes returns byte slice of RecordID.

func (*RecordID) DebugString added in v0.7.5 

func (id *RecordID) DebugString() string

DebugString prints ID in human readable form.

func (*RecordID) Equal added in v0.6.2 

func (id *RecordID) Equal(other *RecordID) bool

Equal checks if reference points to the same record.

func (*RecordID) Hash added in v0.6.3 

func (id *RecordID) Hash() []byte

Hash returns a copy of Hash part of RecordID.

func (*RecordID) MarshalJSON added in v0.6.3 

func (id *RecordID) MarshalJSON() ([]byte, error)

MarshalJSON serializes ID into JSON.

func (*RecordID) Pulse added in v0.6.2 

func (id *RecordID) Pulse() PulseNumber

Pulse returns a copy of Pulse part of RecordID.

func (*RecordID) String added in v0.6.3 

func (id *RecordID) String() string

String implements stringer on RecordID and returns base58 encoded value

type RecordRef 

type RecordRef [RecordRefSize]byte

RecordRef is a unified record reference.

func NewRecordRef added in v0.6.2 

func NewRecordRef(domain RecordID, record RecordID) *RecordRef

NewRecordRef returns RecordRef composed from domain and record

func NewRefFromBase58 added in v0.2.0 

func NewRefFromBase58(str string) (*RecordRef, error)

NewRefFromBase58 deserializes reference from base58 encoded string.

func (RecordRef) Bytes added in v0.6.3 

func (ref RecordRef) Bytes() []byte

Bytes returns byte slice of RecordRef.

func (RecordRef) Compare added in v0.6.3 

func (ref RecordRef) Compare(other RecordRef) int

Compare compares two record references

func (RecordRef) Domain 

func (ref RecordRef) Domain() *RecordID

Domain returns domain ID part of reference.

func (RecordRef) Equal 

func (ref RecordRef) Equal(other RecordRef) bool

Equal checks if reference points to the same record.

func (RecordRef) FromSlice added in v0.6.3 

func (ref RecordRef) FromSlice(from []byte) RecordRef

FromSlice : After CBOR Marshal/Unmarshal Ref can be converted to byte slice, this converts it back

func (RecordRef) IsEmpty added in v0.6.3 

func (ref RecordRef) IsEmpty() bool

IsEmpty - check for void

func (*RecordRef) MarshalJSON added in v0.6.3 

func (ref *RecordRef) MarshalJSON() ([]byte, error)

MarshalJSON serializes reference into JSON.

func (*RecordRef) Record added in v0.6.2 

func (ref *RecordRef) Record() *RecordID

Record returns record's RecordID.

func (*RecordRef) SetDomain added in v0.5.0 

func (ref *RecordRef) SetDomain(recID RecordID)

SetDomain set domain's RecordID.

func (*RecordRef) SetRecord added in v0.5.0 

func (ref *RecordRef) SetRecord(recID RecordID)

SetRecord set record's RecordID.

func (RecordRef) String 

func (ref RecordRef) String() string

String outputs base58 RecordRef representation.

type RedirectReply added in v0.6.3 

type RedirectReply interface {
	// Redirected creates redirected message from redirect data.
	Redirected(genericMsg Message) Message
	// GetReceiver returns node reference to send message to.
	GetReceiver() *RecordRef
	// GetToken returns delegation token.
	GetToken() DelegationToken
}

RedirectReply is used to create redirected messages.

type RefIterator added in v0.0.6 

type RefIterator interface {
	Next() (*RecordRef, error)
	HasNext() bool
}

RefIterator is used for iteration over affined children(parts) of container.

type RemoteProcedure 

type RemoteProcedure func(ctx context.Context, args [][]byte) ([]byte, error)

RemoteProcedure is remote procedure call function.

type Reply added in v0.4.0 

type Reply interface {
	// Type returns message type.
	Type() ReplyType
}

Reply for an `Message`

type ReplyType added in v0.4.0 

type ReplyType byte

ReplyType is an enum type of message reply.

type ShortNodeID added in v0.6.3 

type ShortNodeID uint32

ShortNodeID is the shortened ID of node that is unique inside the globe

type Signature added in v0.6.1 

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

func SignatureFromBytes added in v0.6.3 

func SignatureFromBytes(raw []byte) Signature

func (*Signature) Bytes added in v0.6.3 

func (s *Signature) Bytes() []byte

type Signer added in v0.6.3 

type Signer interface {
	Sign([]byte) (*Signature, error)
}

type StaticRole added in v0.6.3 

type StaticRole int

StaticRole holds role of node.

func GetStaticRoleFromString added in v0.6.3 

func GetStaticRoleFromString(role string) StaticRole

GetStaticRoleFromString converts role from string to StaticRole.

func (StaticRole) String added in v0.7.5 

func (nr StaticRole) String() string

type StorageExportResult added in v0.6.3 

type StorageExportResult struct {
	Data     map[string]interface{}
	NextFrom *PulseNumber
	Size     int
}

StorageExportResult represents storage data view.

type StorageExporter added in v0.6.3 

type StorageExporter interface {
	// Export returns data view from storage.
	Export(ctx context.Context, fromPulse PulseNumber, size int) (*StorageExportResult, error)
}

StorageExporter provides methods for fetching data view from storage.

type SwitcherWorkAround added in v0.6.3 

type SwitcherWorkAround interface {
	// IsBootstrapped method shows that all DiscoveryNodes finds each other
	IsBootstrapped() bool
	// SetIsBootstrapped method set is bootstrap completed
	SetIsBootstrapped(isBootstrap bool)
}

TODO: remove this interface when bootstrap mechanism completed SwitcherWorkAround temp interface for NetworkSwitcher interaction

type TapeWriter added in v0.7.5 

type TapeWriter interface {
	// WriteTape writes recorder's tape to the provided writer.
	WriteTape(ctx context.Context, writer io.Writer) error
}

type Verifier added in v0.6.3 

type Verifier interface {
	Verify(Signature, []byte) bool
}

Source Files

View all Source files

Directories

Path Synopsis
Package delegationtoken is about an authorization token that allows a node to perform actions it can not normally perform during this pulse
 Package delegationtoken is about an authorization token that allows a node to perform actions it can not normally perform during this pulse
Package message represents message that messagebus can route
 Package message represents message that messagebus can route
Package reply represents responses to messages of the messagebus
 Package reply represents responses to messages of the messagebus

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