myxdb

package

v1.8.7 Latest Latest Go to latest Published: Jan 26, 2024 License: BSD-3-Clause Imports: 9 Imported by: 0

Details

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Repository

gitee.com/any-call/gobase

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
func CheckIP(ip string) (uint32, error)
func CheckSegments(segList []*Segment) error
func IterateSegments(handle *os.File, before func(l string), cb func(seg *Segment) error) error
func Long2IP(ip uint32) string
func MidIP(sip uint32, eip uint32) uint32
type Header
- func NewHeader(input []byte) (*Header, error)
type IndexPolicy
- func (i IndexPolicy) String() string
type Maker
- func NewMaker(policy IndexPolicy, srcFile string, dstFile string) (*Maker, error)
- func (m *Maker) End() error
- func (m *Maker) Init() error
- func (m *Maker) Start() error
type Searcher
- func NewWithBuffer(cBuff []byte) (*Searcher, error)
- func NewWithFileOnly(dbFile string) (*Searcher, error)
- func NewWithVectorIndex(dbFile string, vIndex []byte) (*Searcher, error)
- func (s *Searcher) Close()
- func (s *Searcher) GetIOCount() int
- func (s *Searcher) Search(ip uint32) (string, error)
- func (s *Searcher) SearchByStr(str string) (string, error)
type Segment
- func SegmentFrom(seg string) (*Segment, error)
- func (s *Segment) AfterCheck(last *Segment) error
- func (s *Segment) Split() []*Segment
- func (s *Segment) String() string
type XDBMaker
- func NewXDBMakerByBtree(srcFile string, dstFile string) (ret *XDBMaker, err error)
- func NewXDBMakerByVector(srcFile string, dstFile string) (ret *XDBMaker, err error)
- func (self *XDBMaker) GenXDBFile() error
type XDBSearcher
- func NewXDBSearcher(filePath string) (ret *XDBSearcher, err error)
- func (self *XDBSearcher) Search(ipaddr string) string

Constants ¶

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const HeaderInfoLength = 256

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const (
	SegmentIndexBlockSize = 14
)

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const SegmentIndexSize = 14

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const VectorIndexCols = 256

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const VectorIndexLength = VectorIndexRows * VectorIndexCols * VectorIndexSize

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const VectorIndexRows = 256

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const VectorIndexSize = 8

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const VersionNo = 2

Variables ¶

This section is empty.

Functions ¶

func CheckIP ¶

func CheckIP(ip string) (uint32, error)

func CheckSegments ¶

func CheckSegments(segList []*Segment) error

func IterateSegments ¶

func IterateSegments(handle *os.File, before func(l string), cb func(seg *Segment) error) error

func Long2IP ¶

func Long2IP(ip uint32) string

func MidIP ¶

func MidIP(sip uint32, eip uint32) uint32

Types ¶

type Header ¶

type Header struct {
	// data []byte
	Version       uint16
	IndexPolicy   IndexPolicy
	CreatedAt     uint32
	StartIndexPtr uint32
	EndIndexPtr   uint32
}

func NewHeader ¶

func NewHeader(input []byte) (*Header, error)

type IndexPolicy ¶

type IndexPolicy int

const (
	VectorIndexPolicy IndexPolicy = 1
	BTreeIndexPolicy  IndexPolicy = 2
)

func (IndexPolicy) String ¶

func (i IndexPolicy) String() string

type Maker ¶

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

func NewMaker ¶

func NewMaker(policy IndexPolicy, srcFile string, dstFile string) (*Maker, error)

func (*Maker) End ¶

func (m *Maker) End() error

func (*Maker) Init ¶

func (m *Maker) Init() error

Init the db binary file

func (*Maker) Start ¶

func (m *Maker) Start() error

Start to make the binary file

type Searcher ¶

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

func NewWithBuffer ¶

func NewWithBuffer(cBuff []byte) (*Searcher, error)

func NewWithFileOnly ¶

func NewWithFileOnly(dbFile string) (*Searcher, error)

func NewWithVectorIndex ¶

func NewWithVectorIndex(dbFile string, vIndex []byte) (*Searcher, error)

func (*Searcher) Close ¶

func (s *Searcher) Close()

func (*Searcher) GetIOCount ¶

func (s *Searcher) GetIOCount() int

GetIOCount return the global io count for the last search

func (*Searcher) Search ¶

func (s *Searcher) Search(ip uint32) (string, error)

Search find the region for the specified long ip

func (*Searcher) SearchByStr ¶

func (s *Searcher) SearchByStr(str string) (string, error)

SearchByStr find the region for the specified ip string

type Segment ¶

type Segment struct {
	StartIP uint32
	EndIP   uint32
	Region  string
}

func SegmentFrom ¶

func SegmentFrom(seg string) (*Segment, error)

func (*Segment) AfterCheck ¶

func (s *Segment) AfterCheck(last *Segment) error

AfterCheck check the current segment is the one just after the specified one

func (*Segment) Split ¶

func (s *Segment) Split() []*Segment

Split the segment based on the pre-two bytes

func (*Segment) String ¶

func (s *Segment) String() string

type XDBMaker ¶

type XDBMaker struct {
	*Maker
}

func NewXDBMakerByBtree ¶

func NewXDBMakerByBtree(srcFile string, dstFile string) (ret *XDBMaker, err error)

func NewXDBMakerByVector ¶

func NewXDBMakerByVector(srcFile string, dstFile string) (ret *XDBMaker, err error)

func (*XDBMaker) GenXDBFile ¶

func (self *XDBMaker) GenXDBFile() error

type XDBSearcher ¶

type XDBSearcher struct {
	*Searcher
}

func NewXDBSearcher ¶

func NewXDBSearcher(filePath string) (ret *XDBSearcher, err error)

func (*XDBSearcher) Search ¶

func (self *XDBSearcher) Search(ipaddr string) string

Source Files ¶

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