gfilespace

package

v0.0.0-...-819f294 Latest Latest Go to latest Published: Dec 16, 2018 License: MIT Imports: 3 Imported by: 0

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Repository

github.com/johng-cn/gkvdb

Documentation ¶

Overview ¶

文件空间管理

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Block ¶

type Block struct {
	// contains filtered or unexported fields
}

文件空闲块

func (*Block) Index ¶

func (block *Block) Index() int

获得碎片偏移量

func (*Block) Less ¶

func (block *Block) Less(item gbtree.Item) bool

用于B+树的接口具体实现定义

func (*Block) Size ¶

func (block *Block) Size() int

获得碎片大小

type Space ¶

type Space struct {
	// contains filtered or unexported fields
}

文件空间管理结构体

func New ¶

func New() *Space

创建一个空间管理器

func (*Space) AddBlock ¶

func (space *Space) AddBlock(index int, size int)

添加空闲空间到管理器

func (*Space) Contains ¶

func (space *Space) Contains(index int, size int) bool

给定的空间块*整块*是否包含在管理器中

func (*Space) Export ¶

func (space *Space) Export() []byte

导出空间块数据

func (*Space) GetAllBlocks ¶

func (space *Space) GetAllBlocks() []Block

获得所有的碎片空间，按照index升序排序

func (*Space) GetAllSizes ¶

func (space *Space) GetAllSizes() []uint

获得所有的碎片空间大小列表，按照size升序排序

func (*Space) GetBlock ¶

func (space *Space) GetBlock(size int) (int, int)

申请空间，返回文件地址及大小，返回成功后则在管理器中删除该空闲块

func (*Space) GetMaxBlock ¶

func (space *Space) GetMaxBlock() *Block

获取索引最大的空间块

func (*Space) GetMaxSize ¶

func (space *Space) GetMaxSize() int

获取当前空间管理器中最大的空闲块大小

func (*Space) GetMinBlock ¶

func (space *Space) GetMinBlock() *Block

获取索引最小的空间块

func (*Space) Import ¶

func (space *Space) Import(content []byte)

导入空间块数据

func (*Space) Len ¶

func (space *Space) Len() int

获取空间块的数量

func (*Space) RemoveBlock ¶

func (space *Space) RemoveBlock(index int)

删除指定索引位置的空间块

func (*Space) SumSize ¶

func (space *Space) SumSize() int

计算总的空闲空间大小

Source Files ¶

View all Source files

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