/
interfaces.go
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/
interfaces.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use
* this file except in compliance with the License. You may obtain a copy of the
* License at
*
* https://opensource.org/licenses/Apache-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package allocator
// Interface manages the allocation of items out of a range. Interface
// should be threadsafe.
type Interface interface {
Allocate(int) (bool, error)
AllocateNext() (int, bool, error)
Release(int) error
ForEach(func(int))
// For testing
Has(int) bool
// For testing
Free() int
}
// Snapshottable is an Interface that can be snapshotted and restored. Snapshottable
// should be threadsafe.
type Snapshottable interface {
Interface
Snapshot() (string, []byte)
Restore(string, []byte) error
}
type Factory func(max int, rangeSpec string) Interface