store

package

v0.0.0-...-cb24bb1 Latest Latest Go to latest Published: Dec 3, 2023 License: MPL-2.0 Imports: 6 Imported by: 0

Details

Valid go.mod file

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Redistributable license

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Tagged version

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Stable version

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Learn more about best practices

Repository

github.com/gilmae/klite

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
func Serialise(r StoreItem) []byte
func WriteHeader(p *data.Page, header StoreItem, offset uint16)
type Node
- func InititaliseNode(p *data.Page) *Node
- func NewNode(page *data.Page) *Node
type Record
type StoreItem
type Stream
- func InitialiseStream(p data.Pager) (*Stream, uint32)
- func NewStream(p data.Pager, rootPageNum uint32) *Stream

Constants ¶

View Source

const (
	PrevPageOffset         = 0
	PrevPageSize           = uint16(unsafe.Sizeof(uint32(0)))
	NextPageOffset         = PrevPageSize
	NextPageSize           = uint16(unsafe.Sizeof(uint32(0)))
	NextFreePositionOffset = NextPageOffset + NextPageSize
	NextFreePositionSize   = uint16(unsafe.Sizeof(uint32(0)))
	//LastValueWritenOffset  = NextFreePositionOffset + NextFreePositionSize
	//LastValueWrittenSize   = uint16(unsafe.Sizeof(uint32(0)))
	HeaderSize = NextFreePositionOffset + NextFreePositionSize //LastValueWritenOffset + LastValueWrittenSize
)

View Source

const (
	IndexRootPageOffset        = 0
	IndexRootPageSize          = uint16(unsafe.Sizeof(uint32(0)))
	StoreHeadPageOffset        = IndexRootPageOffset + IndexRootPageSize
	StoreHeadPageSize          = uint16(unsafe.Sizeof(uint32(0)))
	StoreTailPageOffset        = StoreHeadPageOffset + StoreHeadPageSize
	StoreTailPageSize          = uint16(unsafe.Sizeof(uint32(0)))
	NextKeyOffset              = StoreTailPageOffset + StoreTailPageSize
	NextKeySize                = uint16(unsafe.Sizeof(uint32(0)))
	LastValueWrittenPageOffset = NextKeyOffset + NextKeySize
	LastValueWrittenPageSize   = uint16(unsafe.Sizeof(uint32(0)))
	LastValueWrittenPosOffset  = LastValueWrittenPageOffset + LastValueWrittenPageSize
	LastValueWrittenPosSize    = uint16(unsafe.Sizeof(uint16(0)))
	StreamHeader               = LastValueWrittenPosOffset + LastValueWrittenPosSize
)

Variables ¶

This section is empty.

Functions ¶

func Serialise ¶

func Serialise(r StoreItem) []byte

func WriteHeader ¶

func WriteHeader(p *data.Page, header StoreItem, offset uint16)

Types ¶

type Node ¶

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

func InititaliseNode ¶

func InititaliseNode(p *data.Page) *Node

func NewNode ¶

func NewNode(page *data.Page) *Node

func (*Node) CloseNode ¶

func (n *Node) CloseNode()

func (*Node) Next ¶

func (n *Node) Next() uint32

func (*Node) NextFreePosition ¶

func (n *Node) NextFreePosition() uint16

func (*Node) Previous ¶

func (n *Node) Previous() uint32

func (*Node) Read ¶

func (n *Node) Read(offset uint16, length uint32, buffer []byte) (uint32, error)

func (*Node) SetNext ¶

func (n *Node) SetNext(next uint32)

func (*Node) SetNextFreePosition ¶

func (n *Node) SetNextFreePosition(nextFreePos uint16)

func (*Node) SetPrevious ¶

func (n *Node) SetPrevious(previous uint32)

func (*Node) SpaceRemaining ¶

func (n *Node) SpaceRemaining() uint16

func (*Node) Write ¶

func (n *Node) Write(data []byte) (uint16, error)

type Record ¶

type Record struct {
	Data []byte
	Key  uint32
}

type StoreItem ¶

type StoreItem struct {
	Key             uint32
	Length          uint32
	NextItemPageNum uint32
	NextItemOffset  uint16
}

func Deserialise ¶

func Deserialise(enc []byte) StoreItem

func NewStoreItem ¶

func NewStoreItem(key uint32, length uint32, nextItemPageNum uint32, nextItemOffset uint16) StoreItem

func ReadHeader ¶

func ReadHeader(p *data.Page, offset uint16) StoreItem

type Stream ¶

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

func InitialiseStream ¶

func InitialiseStream(p data.Pager) (*Stream, uint32)

func NewStream ¶

func NewStream(p data.Pager, rootPageNum uint32) *Stream

func (*Stream) Add ¶

func (s *Stream) Add(payload []byte) (uint32, error)

func (*Stream) Get ¶

func (s *Stream) Get(key uint32) (Record, error)

func (*Stream) GetFrom ¶

func (s *Stream) GetFrom(key uint32, num uint16) ([]Record, error)

func (*Stream) IndexPage ¶

func (s *Stream) IndexPage() uint32

func (*Stream) LastValueWrittenPage ¶

func (s *Stream) LastValueWrittenPage() uint32

func (*Stream) LastValueWrittenPos ¶

func (s *Stream) LastValueWrittenPos() uint16

func (*Stream) NextKey ¶

func (s *Stream) NextKey() uint32

func (*Stream) SetIndexPage ¶

func (s *Stream) SetIndexPage(pageNum uint32)

func (*Stream) SetStoreHeadPage ¶

func (s *Stream) SetStoreHeadPage(pageNum uint32)

func (*Stream) SetStoreTailPage ¶

func (s *Stream) SetStoreTailPage(pageNum uint32)

func (*Stream) StoreHeadPage ¶

func (s *Stream) StoreHeadPage() uint32

func (*Stream) StoreTailPage ¶

func (s *Stream) StoreTailPage() uint32

Source Files ¶

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