请选择 进入手机版 | 继续访问电脑版
  • 设为首页
  • 点击收藏
  • 手机版
    手机扫一扫访问
    迪恩网络手机版
  • 关注官方公众号
    微信扫一扫关注
    迪恩网络公众号

Golang iterator.NewIndexedIterator函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Golang中github.com/syndtr/goleveldb/leveldb/iterator.NewIndexedIterator函数的典型用法代码示例。如果您正苦于以下问题:Golang NewIndexedIterator函数的具体用法?Golang NewIndexedIterator怎么用?Golang NewIndexedIterator使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了NewIndexedIterator函数的11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: newIterator

func (c *compaction) newIterator() iterator.Iterator {
	s := c.s

	level := c.level
	icap := 2
	if c.level == 0 {
		icap = len(c.tables[0]) + 1
	}
	its := make([]iterator.Iterator, 0, icap)

	ro := &opt.ReadOptions{
		DontFillCache: true,
	}
	strict := s.o.GetStrict(opt.StrictIterator)

	for i, tt := range c.tables {
		if len(tt) == 0 {
			continue
		}

		if level+i == 0 {
			for _, t := range tt {
				its = append(its, s.tops.newIterator(t, nil, ro))
			}
		} else {
			it := iterator.NewIndexedIterator(tt.newIndexIterator(s.tops, s.icmp, nil, ro), strict, true)
			its = append(its, it)
		}
	}

	return iterator.NewMergedIterator(its, s.icmp, true)
}
开发者ID:BenKoerber,项目名称:syncthing,代码行数:32,代码来源:session.go


示例2: newIterator

// Creates an iterator.
func (c *compaction) newIterator() iterator.Iterator {
	// Creates iterator slice.
	icap := len(c.tables)
	if c.level == 0 {
		// Special case for level-0
		icap = len(c.tables[0]) + 1
	}
	its := make([]iterator.Iterator, 0, icap)

	// Options.
	ro := &opt.ReadOptions{
		DontFillCache: true,
	}
	strict := c.s.o.GetStrict(opt.StrictIterator)

	for i, tables := range c.tables {
		if len(tables) == 0 {
			continue
		}

		// Level-0 is not sorted and may overlaps each other.
		if c.level+i == 0 {
			for _, t := range tables {
				its = append(its, c.s.tops.newIterator(t, nil, ro))
			}
		} else {
			it := iterator.NewIndexedIterator(tables.newIndexIterator(c.s.tops, c.s.icmp, nil, ro), strict, true)
			its = append(its, it)
		}
	}

	return iterator.NewMergedIterator(its, c.s.icmp, true)
}
开发者ID:GDXN,项目名称:syncthing,代码行数:34,代码来源:session.go


示例3: newIterator

func (c *compaction) newIterator() iterator.Iterator {
	s := c.s
	icmp := s.cmp

	level := c.level
	icap := 2
	if c.level == 0 {
		icap = len(c.tables[0]) + 1
	}
	its := make([]iterator.Iterator, 0, icap)

	ro := &opt.ReadOptions{
		Flag: opt.RFDontFillCache,
	}
	if s.o.HasFlag(opt.OFParanoidCheck) {
		ro.Flag |= opt.RFVerifyChecksums
	}

	for i, tt := range c.tables {
		if len(tt) == 0 {
			continue
		}

		if level+i == 0 {
			for _, t := range tt {
				its = append(its, s.tops.newIterator(t, ro))
			}
		} else {
			it := iterator.NewIndexedIterator(tt.newIndexIterator(s.tops, icmp, ro))
			its = append(its, it)
		}
	}

	return iterator.NewMergedIterator(its, icmp)
}
开发者ID:29n,项目名称:goleveldb,代码行数:35,代码来源:session.go


示例4: NewIterator

// NewIterator returns an iterator of the table.
//
// The returned iterator is not goroutine-safe and should be released
// when not used.
//
// Also read Iterator documentation of the leveldb/iterator package.
func (r *Reader) NewIterator(ro *opt.ReadOptions) iterator.Iterator {
	if r.err != nil {
		return iterator.NewEmptyIterator(r.err)
	}

	index := &indexIter{
		blockIter:   *r.indexBlock.newIterator(nil),
		tableReader: r,
		checksum:    ro.GetStrict(opt.StrictBlockChecksum),
		fillCache:   !ro.GetDontFillCache(),
	}
	return iterator.NewIndexedIterator(index, r.strictIter || ro.GetStrict(opt.StrictIterator))
}
开发者ID:pombredanne,项目名称:goleveldb,代码行数:19,代码来源:reader.go


示例5: getIterators

func (v *version) getIterators(slice *util.Range, ro *opt.ReadOptions) (its []iterator.Iterator) {
	strict := opt.GetStrict(v.s.o.Options, ro, opt.StrictReader)
	for level, tables := range v.levels {
		if level == 0 {
			// Merge all level zero files together since they may overlap.
			for _, t := range tables {
				its = append(its, v.s.tops.newIterator(t, slice, ro))
			}
		} else if len(tables) != 0 {
			its = append(its, iterator.NewIndexedIterator(tables.newIndexIterator(v.s.tops, v.s.icmp, slice, ro), strict))
		}
	}
	return
}
开发者ID:zramsay,项目名称:geth-tmsp,代码行数:14,代码来源:version.go


示例6: NewIterator

// NewIterator creates an iterator from the table.
//
// Slice allows slicing the iterator to only contains keys in the given
// range. A nil Range.Start is treated as a key before all keys in the
// table. And a nil Range.Limit is treated as a key after all keys in
// the table.
//
// The returned iterator is not goroutine-safe and should be released
// when not used.
//
// Also read Iterator documentation of the leveldb/iterator package.
func (r *Reader) NewIterator(slice *util.Range, ro *opt.ReadOptions) iterator.Iterator {
	if r.err != nil {
		return iterator.NewEmptyIterator(r.err)
	}

	fillCache := !ro.GetDontFillCache()
	b, rel, err := r.readBlockCached(r.indexBH, true, fillCache)
	if err != nil {
		return iterator.NewEmptyIterator(err)
	}
	index := &indexIter{
		blockIter: b.newIterator(slice, true, rel),
		slice:     slice,
		checksum:  ro.GetStrict(opt.StrictBlockChecksum),
		fillCache: !ro.GetDontFillCache(),
	}
	return iterator.NewIndexedIterator(index, r.strictIter || ro.GetStrict(opt.StrictIterator), false)
}
开发者ID:chenfj068,项目名称:goleveldb,代码行数:29,代码来源:reader.go


示例7: getIterators

func (v *version) getIterators(slice *util.Range, ro *opt.ReadOptions) (its []iterator.Iterator) {
	// Merge all level zero files together since they may overlap
	for _, t := range v.tables[0] {
		it := v.s.tops.newIterator(t, slice, ro)
		its = append(its, it)
	}

	strict := v.s.o.GetStrict(opt.StrictIterator) || ro.GetStrict(opt.StrictIterator)
	for _, tables := range v.tables[1:] {
		if len(tables) == 0 {
			continue
		}

		it := iterator.NewIndexedIterator(tables.newIndexIterator(v.s.tops, v.s.icmp, slice, ro), strict, true)
		its = append(its, it)
	}

	return
}
开发者ID:GDXN,项目名称:syncthing,代码行数:19,代码来源:version.go


示例8: NewIterator

// NewIterator creates an iterator from the table.
//
// Slice allows slicing the iterator to only contains keys in the given
// range. A nil Range.Start is treated as a key before all keys in the
// table. And a nil Range.Limit is treated as a key after all keys in
// the table.
//
// The returned iterator is not goroutine-safe and should be released
// when not used.
//
// Also read Iterator documentation of the leveldb/iterator package.
func (r *Reader) NewIterator(slice *util.Range, ro *opt.ReadOptions) iterator.Iterator {
	r.mu.RLock()
	defer r.mu.RUnlock()

	if r.err != nil {
		return iterator.NewEmptyIterator(r.err)
	}

	fillCache := !ro.GetDontFillCache()
	indexBlock, rel, err := r.getIndexBlock(fillCache)
	if err != nil {
		return iterator.NewEmptyIterator(err)
	}
	index := &indexIter{
		blockIter: r.newBlockIter(indexBlock, rel, slice, true),
		tr:        r,
		slice:     slice,
		fillCache: !ro.GetDontFillCache(),
	}
	return iterator.NewIndexedIterator(index, opt.GetStrict(r.o, ro, opt.StrictReader))
}
开发者ID:tendermint,项目名称:functional-tester,代码行数:32,代码来源:reader.go


示例9: getIterators

func (v *version) getIterators(ro *opt.ReadOptions) (its []iterator.Iterator) {
	s := v.s
	icmp := s.cmp

	// Merge all level zero files together since they may overlap
	for _, t := range v.tables[0] {
		it := s.tops.newIterator(t, ro)
		its = append(its, it)
	}

	for _, tt := range v.tables[1:] {
		if len(tt) == 0 {
			continue
		}

		it := iterator.NewIndexedIterator(tt.newIndexIterator(s.tops, icmp, ro))
		its = append(its, it)
	}

	return
}
开发者ID:29n,项目名称:goleveldb,代码行数:21,代码来源:version.go


示例10: NewIterator

// NewIterator creates an iterator from the table.
//
// Slice allows slicing the iterator to only contains keys in the given
// range. A nil Range.Start is treated as a key before all keys in the
// table. And a nil Range.Limit is treated as a key after all keys in
// the table.
//
// The returned iterator is not goroutine-safe and should be released
// when not used.
//
// Also read Iterator documentation of the leveldb/iterator package.
func (r *Reader) NewIterator(slice *util.Range, ro *opt.ReadOptions) iterator.Iterator {
	r.mu.RLock()
	defer r.mu.RUnlock()

	if r.err != nil {
		return iterator.NewEmptyIterator(r.err)
	}

	fillCache := !ro.GetDontFillCache()
	indexBlock, rel, err := r.getIndexBlock(fillCache)
	if err != nil {
		return iterator.NewEmptyIterator(err)
	}
	index := &indexIter{
		blockIter: indexBlock.newIterator(slice, true, rel),
		slice:     slice,
		checksum:  ro.GetStrict(opt.StrictBlockChecksum),
		fillCache: !ro.GetDontFillCache(),
	}
	return iterator.NewIndexedIterator(index, r.strictIter || ro.GetStrict(opt.StrictIterator), true)
}
开发者ID:baa-archieve,项目名称:syncthing,代码行数:32,代码来源:reader.go


示例11: NewIterator

// NewIterator create new iterator over the table.
func (t *Reader) NewIterator(ro opt.ReadOptionsGetter) iterator.Iterator {
	index_iter := &indexIter{t: t, ro: ro}
	t.indexBlock.InitIterator(&index_iter.Iterator)
	return iterator.NewIndexedIterator(index_iter)
}
开发者ID:29n,项目名称:goleveldb,代码行数:6,代码来源:reader.go



注:本文中的github.com/syndtr/goleveldb/leveldb/iterator.NewIndexedIterator函数示例由纯净天空整理自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。


鲜花

握手

雷人

路过

鸡蛋
该文章已有0人参与评论

请发表评论

全部评论

专题导读
上一篇:
Golang iterator.NewMergedIterator函数代码示例发布时间:2022-05-29
下一篇:
Golang iterator.NewEmptyIterator函数代码示例发布时间:2022-05-29
热门推荐
热门话题
阅读排行榜

扫描微信二维码

查看手机版网站

随时了解更新最新资讯

139-2527-9053

在线客服(服务时间 9:00~18:00)

在线QQ客服
地址:深圳市南山区西丽大学城创智工业园
电邮:jeky_zhao#qq.com
移动电话:139-2527-9053

Powered by 互联科技 X3.4© 2001-2213 极客世界.|Sitemap