client

package

v0.1.0 Latest Latest Go to latest Published: Oct 29, 2026 License: Apache-2.0 Imports: 1 Imported by: 0

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Valid go.mod file
Redistributable license
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Repository

github.com/eitanity/merilo

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Documentation ¶

Overview ¶

Package client is one client of a lock server: it asks for the lock, holds it once granted, and releases it. New can also build a client that is not idempotent under duplicated grants, for the acceptance tests.

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Actions ¶

type Actions uint64

Actions is the set of things the holder must do after a transition, one bit each. The holder performs them in declaration order. The zero value is the empty set.

const (
	ActRequest Actions = 1 << iota
	ActRelease
	ActModeChanged
)

Actions values.

type Event ¶

type Event uint8

Event is an input to Fire.

const (
	EvWant Event
	EvGrant
	EvDone
)

Event values.

type Machine ¶

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

Machine is one client. Build it with New and change it only with Fire.

func New ¶

func New(acceptStale bool) Machine

New returns a client in Idle. With acceptStale it is the seeded bug: it takes any grant, even when not waiting, so a duplicated grant makes it hold the lock again.

func (Machine) Fire ¶

func (m Machine) Fire(e Event) (Machine, Actions, fsm.Outcome)

Fire applies e and returns the next machine, its actions and what happened.

func (Machine) Mode ¶

func (m Machine) Mode() Mode

Mode derives the mode from the state.

func (Machine) State ¶

func (m Machine) State() State

State returns the control state.

type Mode ¶

type Mode uint8

Mode is derived from State. A client has one mode.

const (
	Normal Mode
)

Mode values.

func (Mode) String ¶

func (m Mode) String() string

type State ¶

type State uint8

State is the client's control state.

const (
	Idle State
	Waiting
	Holding
)

State values.

func (State) String ¶

func (s State) String() string

Source Files ¶

View all Source files

client.go

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