register

package
v1.0.4 Latest Latest
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 Go to latest Published: Jul 28, 2026 License: MIT Imports: 5 Imported by: 0

Documentation

Overview

Package register implements state-based register CRDTs.

Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrInvalidReplicaID = errors.New("register: invalid replica ID")
	ErrNilLWW           = errors.New("register: nil LWW register")
	ErrNilMax           = errors.New("register: nil max register")
	ErrTagConflict      = errors.New("register: conflicting value for one tag")
)

Functions

This section is empty.

Types

type LWW 

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

LWW stores an opaque byte value selected by the greatest HLC tag. Values are copied at both API boundaries so callers cannot mutate converged state.

func NewLWW 

func NewLWW(replicaID string) (*LWW, error)

func NewLWWFromClock 

func NewLWWFromClock(state clock.State) (*LWW, error)

func (*LWW) ClockState 

func (r *LWW) ClockState() clock.State

func (*LWW) Get 

func (r *LWW) Get() ([]byte, bool)

func (*LWW) Merge 

func (r *LWW) Merge(other *LWW) error

func (*LWW) Set 

func (r *LWW) Set(value []byte) error

func (*LWW) State 

func (r *LWW) State() crdt.StateSnapshot

type Max 

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

Max is a grow-only register. A write below its current value is a no-op; Merge takes the maximum, which is associative, commutative, and idempotent.

func NewMax 

func NewMax() *Max

func (*Max) Get 

func (r *Max) Get() (uint64, bool)

func (*Max) Merge 

func (r *Max) Merge(other *Max) error

func (*Max) Set 

func (r *Max) Set(value uint64) error

func (*Max) State 

func (r *Max) State() crdt.StateSnapshot

Source Files

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