Golang snappb.Snapshot类代码示例

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本文整理汇总了Golang中github.com/coreos/etcd/snap/snappb.Snapshot类的典型用法代码示例。如果您正苦于以下问题：Golang Snapshot类的具体用法？Golang Snapshot怎么用？Golang Snapshot使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了Snapshot类的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: save

func (s *Snapshotter) save(snapshot *raftpb.Snapshot) error {
	start := time.Now()

	fname := fmt.Sprintf("%016x-%016x%s", snapshot.Metadata.Term, snapshot.Metadata.Index, snapSuffix)
	b := pbutil.MustMarshal(snapshot)
	crc := crc32.Update(0, crcTable, b)
	snap := snappb.Snapshot{Crc: crc, Data: b}
	d, err := snap.Marshal()
	if err != nil {
		return err
	} else {
		marshallingDurations.Observe(float64(time.Since(start)) / float64(time.Second))
	}

	err = pioutil.WriteAndSyncFile(path.Join(s.dir, fname), d, 0666)
	if err == nil {
		saveDurations.Observe(float64(time.Since(start)) / float64(time.Second))
	} else {
		err1 := os.Remove(path.Join(s.dir, fname))
		if err1 != nil {
			plog.Errorf("failed to remove broken snapshot file %s", path.Join(s.dir, fname))
		}
	}
	return err
}

开发者ID:CliffYuan，项目名称:etcd，代码行数:25，代码来源:snapshotter.go

示例2: Read

// Read reads the snapshot named by snapname and returns the snapshot.
func Read(snapname string) (*raftpb.Snapshot, error) {
	b, err := ioutil.ReadFile(snapname)
	if err != nil {
		log.Printf("snap: snapshotter cannot read file %v: %v", snapname, err)
		return nil, err
	}

	var serializedSnap snappb.Snapshot
	if err = serializedSnap.Unmarshal(b); err != nil {
		log.Printf("snap: corrupted snapshot file %v: %v", snapname, err)
		return nil, err
	}

	if len(serializedSnap.Data) == 0 || serializedSnap.Crc == 0 {
		log.Printf("snap: unexpected empty snapshot")
		return nil, ErrEmptySnapshot
	}

	crc := crc32.Update(0, crcTable, serializedSnap.Data)
	if crc != serializedSnap.Crc {
		log.Printf("snap: corrupted snapshot file %v: crc mismatch", snapname)
		return nil, ErrCRCMismatch
	}

	var snap raftpb.Snapshot
	if err = snap.Unmarshal(serializedSnap.Data); err != nil {
		log.Printf("snap: corrupted snapshot file %v: %v", snapname, err)
		return nil, err
	}
	return &snap, nil
}

开发者ID:jhadvig，项目名称:origin，代码行数:32，代码来源:snapshotter.go

示例3: save

func (s *Snapshotter) save(snapshot *raftpb.Snapshot) error {
	fname := fmt.Sprintf("%016x-%016x%s", snapshot.Metadata.Term, snapshot.Metadata.Index, snapSuffix)
	b := pbutil.MustMarshal(snapshot)
	crc := crc32.Update(0, crcTable, b)
	snap := snappb.Snapshot{Crc: crc, Data: b}
	d, err := snap.Marshal()
	if err != nil {
		return err
	}
	return ioutil.WriteFile(path.Join(s.dir, fname), d, 0666)
}

开发者ID:CedarLogic，项目名称:arangodb，代码行数:11，代码来源:snapshotter.go

示例4: save

func (s *Snapshotter) save(snapshot *raftpb.Snapshot) error {
	start := time.Now()

	fname := fmt.Sprintf("%016x-%016x%s", snapshot.Metadata.Term, snapshot.Metadata.Index, snapSuffix)
	b := pbutil.MustMarshal(snapshot)
	crc := crc32.Update(0, crcTable, b)
	snap := snappb.Snapshot{Crc: crc, Data: b}
	d, err := snap.Marshal()
	if err != nil {
		return err
	}
	err = ioutil.WriteFile(path.Join(s.dir, fname), d, 0666)
	if err == nil {
		saveDurations.Observe(float64(time.Since(start).Nanoseconds() / int64(time.Microsecond)))
	}
	return err
}

开发者ID:Celluliodio，项目名称:flannel，代码行数:17，代码来源:snapshotter.go

示例5: loadSnap

func loadSnap(dir, name string) (*raftpb.Snapshot, error) {
	var err error
	var b []byte

	fpath := path.Join(dir, name)
	defer func() {
		if err != nil {
			renameBroken(fpath)
		}
	}()

	b, err = ioutil.ReadFile(fpath)
	if err != nil {
		log.Printf("snap: snapshotter cannot read file %v: %v", name, err)
		return nil, err
	}

	var serializedSnap snappb.Snapshot
	if err = serializedSnap.Unmarshal(b); err != nil {
		log.Printf("snap: corrupted snapshot file %v: %v", name, err)
		return nil, err
	}

	if len(serializedSnap.Data) == 0 || serializedSnap.Crc == 0 {
		log.Printf("snap: unexpected empty snapshot")
		return nil, ErrEmptySnapshot
	}

	crc := crc32.Update(0, crcTable, serializedSnap.Data)
	if crc != serializedSnap.Crc {
		log.Printf("snap: corrupted snapshot file %v: crc mismatch", name)
		return nil, ErrCRCMismatch
	}

	var snap raftpb.Snapshot
	if err = snap.Unmarshal(serializedSnap.Data); err != nil {
		log.Printf("snap: corrupted snapshot file %v: %v", name, err)
		return nil, err
	}
	return &snap, nil
}

开发者ID:CedarLogic，项目名称:arangodb，代码行数:41，代码来源:snapshotter.go

注：本文中的github.com/coreos/etcd/snap/snappb.Snapshot类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。