pmemstate

Documentation

Overview

Copyright 2019 Intel Corporation.

SPDX-License-Identifier: Apache-2.0

Index

• type StateManager
  • func NewFileState(directory string) (StateManager, error)

Types

type StateManager

type StateManager interface {
	// Create creates an entry in the state with given id and data, overwriting
	// any existing one with the same id.
	Create(id string, data interface{}) error
	// Delete deletes an entry found with the id from the state
	Delete(id string) error
	// Get retrives the entry data into location pointed by dataPtr.
	Get(id string, dataPtr interface{}) error
	// GetAll retrieves ids of all entries found in the state
	GetAll() ([]string, error)
}

StateManager manages the driver persistent state, i.e, volumes information

func NewFileState

func NewFileState(directory string) (StateManager, error)

NewFileState instantiates the file state manager with given directory location. It ensures the provided directory exists. State entries are mapped to files with the .json suffix in that directory and vice versa. Other directory content is ignored, which makes it possible to use the directory also for other state information.