47 строки
1.0 KiB
Go
47 строки
1.0 KiB
Go
package eph
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import (
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"context"
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"sync/atomic"
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)
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type (
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Leaser interface {
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StoreExists(ctx context.Context) (bool, error)
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EnsureStore(ctx context.Context) error
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DeleteStore(ctx context.Context) error
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GetLeases(ctx context.Context) ([]*Lease, error)
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EnsureLease(ctx context.Context, lease *Lease) (*Lease, error)
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DeleteLease(ctx context.Context, lease *Lease) error
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AcquireLease(ctx context.Context, lease *Lease) (*Lease, error)
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RenewLease(ctx context.Context, lease *Lease) (*Lease, error)
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ReleaseLease(ctx context.Context, lease *Lease) error
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UpdateLease(ctx context.Context, lease *Lease) (*Lease, error)
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}
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Lease struct {
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partitionID string
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epoch int64
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owner string
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token string
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}
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)
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func NewLease(partitionID string) *Lease {
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return &Lease{
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partitionID: partitionID,
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}
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}
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func (l *Lease) IncrementEpoch() int64 {
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return atomic.AddInt64(&l.epoch, 1)
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}
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func (l *Lease) IsExpired() bool {
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return false
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}
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func (l *Lease) OwnedBy(name string) bool {
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return l.owner == name
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}
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