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Golang Options.GetBlockSize方法代码示例

本文整理汇总了Golang中github.com/eris-ltd/eris-db/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/opt.Options.GetBlockSize方法的典型用法代码示例。如果您正苦于以下问题:Golang Options.GetBlockSize方法的具体用法?Golang Options.GetBlockSize怎么用?Golang Options.GetBlockSize使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/eris-ltd/eris-db/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/opt.Options的用法示例。


在下文中一共展示了Options.GetBlockSize方法的2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,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: NewWriter

// NewWriter creates a new initialized table writer for the file.
//
// Table writer is not goroutine-safe.
func NewWriter(f io.Writer, o *opt.Options) *Writer {
	w := &Writer{
		writer:          f,
		cmp:             o.GetComparer(),
		filter:          o.GetFilter(),
		compression:     o.GetCompression(),
		blockSize:       o.GetBlockSize(),
		comparerScratch: make([]byte, 0),
	}
	// data block
	w.dataBlock.restartInterval = o.GetBlockRestartInterval()
	// The first 20-bytes are used for encoding block handle.
	w.dataBlock.scratch = w.scratch[20:]
	// index block
	w.indexBlock.restartInterval = 1
	w.indexBlock.scratch = w.scratch[20:]
	// filter block
	if w.filter != nil {
		w.filterBlock.generator = w.filter.NewGenerator()
		w.filterBlock.flush(0)
	}
	return w
}
开发者ID:ZhuZhengyi,项目名称:eris-db,代码行数:26,代码来源:writer.go

示例2: recoverTable

func recoverTable(s *session, o *opt.Options) error {
	o = dupOptions(o)
	// Mask StrictReader, lets StrictRecovery doing its job.
	o.Strict &= ^opt.StrictReader

	// Get all tables and sort it by file number.
	tableFiles_, err := s.getFiles(storage.TypeTable)
	if err != nil {
		return err
	}
	tableFiles := files(tableFiles_)
	tableFiles.sort()

	var (
		maxSeq                                                            uint64
		recoveredKey, goodKey, corruptedKey, corruptedBlock, droppedTable int

		// We will drop corrupted table.
		strict = o.GetStrict(opt.StrictRecovery)

		rec   = &sessionRecord{}
		bpool = util.NewBufferPool(o.GetBlockSize() + 5)
	)
	buildTable := func(iter iterator.Iterator) (tmp storage.File, size int64, err error) {
		tmp = s.newTemp()
		writer, err := tmp.Create()
		if err != nil {
			return
		}
		defer func() {
			writer.Close()
			if err != nil {
				tmp.Remove()
				tmp = nil
			}
		}()

		// Copy entries.
		tw := table.NewWriter(writer, o)
		for iter.Next() {
			key := iter.Key()
			if validIkey(key) {
				err = tw.Append(key, iter.Value())
				if err != nil {
					return
				}
			}
		}
		err = iter.Error()
		if err != nil {
			return
		}
		err = tw.Close()
		if err != nil {
			return
		}
		err = writer.Sync()
		if err != nil {
			return
		}
		size = int64(tw.BytesLen())
		return
	}
	recoverTable := func(file storage.File) error {
		s.logf("[email protected] recovering @%d", file.Num())
		reader, err := file.Open()
		if err != nil {
			return err
		}
		var closed bool
		defer func() {
			if !closed {
				reader.Close()
			}
		}()

		// Get file size.
		size, err := reader.Seek(0, 2)
		if err != nil {
			return err
		}

		var (
			tSeq                                     uint64
			tgoodKey, tcorruptedKey, tcorruptedBlock int
			imin, imax                               []byte
		)
		tr, err := table.NewReader(reader, size, storage.NewFileInfo(file), nil, bpool, o)
		if err != nil {
			return err
		}
		iter := tr.NewIterator(nil, nil)
		if itererr, ok := iter.(iterator.ErrorCallbackSetter); ok {
			itererr.SetErrorCallback(func(err error) {
				if errors.IsCorrupted(err) {
					s.logf("[email protected] block corruption @%d %q", file.Num(), err)
					tcorruptedBlock++
				}
			})
		}
//.........这里部分代码省略.........
开发者ID:readevalprint,项目名称:eris-db,代码行数:101,代码来源:db.go


注:本文中的github.com/eris-ltd/eris-db/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/opt.Options.GetBlockSize方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,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。