mirror of
https://github.com/astaxie/beego.git
synced 2024-11-05 16:30:53 +00:00
137 lines
2.2 KiB
Go
137 lines
2.2 KiB
Go
package store
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/siddontang/ledisdb/store/driver"
|
|
"github.com/syndtr/goleveldb/leveldb"
|
|
)
|
|
|
|
type WriteBatch struct {
|
|
wb driver.IWriteBatch
|
|
st *Stat
|
|
|
|
putNum int64
|
|
deleteNum int64
|
|
db *DB
|
|
|
|
data *BatchData
|
|
}
|
|
|
|
func (wb *WriteBatch) Close() {
|
|
wb.wb.Close()
|
|
}
|
|
|
|
func (wb *WriteBatch) Put(key []byte, value []byte) {
|
|
wb.putNum++
|
|
wb.wb.Put(key, value)
|
|
}
|
|
|
|
func (wb *WriteBatch) Delete(key []byte) {
|
|
wb.deleteNum++
|
|
wb.wb.Delete(key)
|
|
}
|
|
|
|
func (wb *WriteBatch) Commit() error {
|
|
wb.st.BatchCommitNum.Add(1)
|
|
wb.st.PutNum.Add(wb.putNum)
|
|
wb.st.DeleteNum.Add(wb.deleteNum)
|
|
wb.putNum = 0
|
|
wb.deleteNum = 0
|
|
|
|
var err error
|
|
t := time.Now()
|
|
if wb.db == nil || !wb.db.needSyncCommit() {
|
|
err = wb.wb.Commit()
|
|
} else {
|
|
err = wb.wb.SyncCommit()
|
|
}
|
|
|
|
wb.st.BatchCommitTotalTime.Add(time.Now().Sub(t))
|
|
|
|
return err
|
|
}
|
|
|
|
func (wb *WriteBatch) Rollback() error {
|
|
wb.putNum = 0
|
|
wb.deleteNum = 0
|
|
|
|
return wb.wb.Rollback()
|
|
}
|
|
|
|
// the data will be undefined after commit or rollback
|
|
func (wb *WriteBatch) BatchData() *BatchData {
|
|
data := wb.wb.Data()
|
|
if wb.data == nil {
|
|
wb.data = new(BatchData)
|
|
}
|
|
|
|
wb.data.Load(data)
|
|
return wb.data
|
|
}
|
|
|
|
func (wb *WriteBatch) Data() []byte {
|
|
b := wb.BatchData()
|
|
return b.Data()
|
|
}
|
|
|
|
/*
|
|
see leveldb batch data format for more information
|
|
*/
|
|
|
|
type BatchData struct {
|
|
leveldb.Batch
|
|
}
|
|
|
|
func NewBatchData(data []byte) (*BatchData, error) {
|
|
b := new(BatchData)
|
|
|
|
if err := b.Load(data); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return b, nil
|
|
}
|
|
|
|
func (d *BatchData) Data() []byte {
|
|
return d.Dump()
|
|
}
|
|
|
|
func (d *BatchData) Reset() {
|
|
d.Batch.Reset()
|
|
}
|
|
|
|
type BatchDataReplay interface {
|
|
Put(key, value []byte)
|
|
Delete(key []byte)
|
|
}
|
|
|
|
type BatchItem struct {
|
|
Key []byte
|
|
Value []byte
|
|
}
|
|
|
|
type batchItems []BatchItem
|
|
|
|
func (bs *batchItems) Put(key, value []byte) {
|
|
*bs = append(*bs, BatchItem{key, value})
|
|
}
|
|
|
|
func (bs *batchItems) Delete(key []byte) {
|
|
*bs = append(*bs, BatchItem{key, nil})
|
|
}
|
|
|
|
func (d *BatchData) Replay(r BatchDataReplay) error {
|
|
return d.Batch.Replay(r)
|
|
}
|
|
|
|
func (d *BatchData) Items() ([]BatchItem, error) {
|
|
is := make(batchItems, 0, d.Len())
|
|
|
|
if err := d.Replay(&is); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return []BatchItem(is), nil
|
|
}
|