mirror of
https://github.com/cubefs/cubefs.git
synced 2026-08-02 02:00:56 +00:00
62 lines
1.5 KiB
Go
62 lines
1.5 KiB
Go
// Copyright 2018 The CubeFS Authors.
|
|
//
|
|
// 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
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-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 OR CONDITIONS OF ANY KIND, either express or
|
|
// implied. See the License for the specific language governing
|
|
// permissions and limitations under the License.k
|
|
|
|
package metanode
|
|
|
|
import (
|
|
"sync"
|
|
"sync/atomic"
|
|
)
|
|
|
|
// TxIDAllocator generates and allocates ids
|
|
type TxIDAllocator struct {
|
|
mpTxID uint64
|
|
txIDLock sync.RWMutex
|
|
}
|
|
|
|
// func newTxIDAllocator(mpID uint64, partition raftstore.Partition) (alloc *TxIDAllocator) {
|
|
func newTxIDAllocator() (alloc *TxIDAllocator) {
|
|
alloc = new(TxIDAllocator)
|
|
return
|
|
}
|
|
|
|
func (alloc *TxIDAllocator) Reset() {
|
|
alloc.txIDLock.Lock()
|
|
defer alloc.txIDLock.Unlock()
|
|
|
|
atomic.StoreUint64(&alloc.mpTxID, 0)
|
|
}
|
|
|
|
func (alloc *TxIDAllocator) setTransactionID(id uint64) {
|
|
alloc.txIDLock.Lock()
|
|
defer alloc.txIDLock.Unlock()
|
|
|
|
atomic.StoreUint64(&alloc.mpTxID, id)
|
|
}
|
|
|
|
func (alloc *TxIDAllocator) getTransactionID() uint64 {
|
|
alloc.txIDLock.RLock()
|
|
defer alloc.txIDLock.RUnlock()
|
|
|
|
return alloc.mpTxID
|
|
}
|
|
|
|
func (alloc *TxIDAllocator) allocateTransactionID() (mpTxID uint64) {
|
|
alloc.txIDLock.Lock()
|
|
defer alloc.txIDLock.Unlock()
|
|
|
|
alloc.mpTxID++
|
|
return alloc.mpTxID
|
|
}
|
