32 строки
954 B
Go
32 строки
954 B
Go
// Copyright 2017 Microsoft. All rights reserved.
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// MIT License
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package store
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import (
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"fmt"
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"time"
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)
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// KeyValueStore represents a persistent store of (key,value) pairs.
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type KeyValueStore interface {
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Exists() bool
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Read(key string, value interface{}) error
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Write(key string, value interface{}) error
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Flush() error
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Lock(timeout time.Duration) error
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Unlock() error
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GetModificationTime() (time.Time, error)
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Remove()
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}
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var (
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// Errors returned by KeyValueStore methods.
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ErrKeyNotFound = fmt.Errorf("key not found")
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ErrStoreLocked = fmt.Errorf("store is already locked")
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ErrStoreNotLocked = fmt.Errorf("store is not locked")
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ErrStoreEmpty = fmt.Errorf("store is empty")
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ErrTimeoutLockingStore = fmt.Errorf("timed out locking store")
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ErrNonBlockingLockIsAlreadyLocked = fmt.Errorf("attempted to perform non-blocking lock on an already locked store")
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)
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