snapshot

package
v1.3.0 Latest Latest
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 Go to latest Published: Mar 4, 2024 License: MIT Imports: 18 Imported by: 0

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Index

Constants

View Source 
const Version2 = 2

Variables

This section is empty.

Functions

func GetVersion added in v1.2.0 

func GetVersion(file ioutil.SectionReader) (uint64, error)

Types

type CollectOptions added in v1.2.0 

type CollectOptions struct {
	Walk       database.WalkOptions
	Predicate  func(database.Record) (bool, error)
	DidCollect func(value database.Value, section, offset uint64) error
}

type Collector 

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

func (*Collector) Close 

func (c *Collector) Close() error

func (*Collector) Collect 

func (c *Collector) Collect(r database.Record, opts CollectOptions) error
type Header struct {

	// Version is the snapshot format version.
	Version uint64 `json:"version,omitempty" form:"version" query:"version" validate:"required"`
	// RootHash is the snapshot's root hash.
	RootHash [32]byte `json:"rootHash,omitempty" form:"rootHash" query:"rootHash" validate:"required"`
	// SystemLedger is the partition's system ledger.
	SystemLedger *protocol.SystemLedger `json:"systemLedger,omitempty" form:"systemLedger" query:"systemLedger" validate:"required"`
	// contains filtered or unexported fields
}

func (*Header) Copy 

func (v *Header) Copy() *Header

func (*Header) CopyAsInterface 

func (v *Header) CopyAsInterface() interface{}

func (*Header) Equal 

func (v *Header) Equal(u *Header) bool

func (*Header) IsValid 

func (v *Header) IsValid() error

func (*Header) MarshalBinary 

func (v *Header) MarshalBinary() ([]byte, error)

func (*Header) MarshalJSON 

func (v *Header) MarshalJSON() ([]byte, error)

func (*Header) UnmarshalBinary 

func (v *Header) UnmarshalBinary(data []byte) error

func (*Header) UnmarshalBinaryFrom 

func (v *Header) UnmarshalBinaryFrom(rd io.Reader) error

func (*Header) UnmarshalJSON 

func (v *Header) UnmarshalJSON(data []byte) error

type IndexReader 

type IndexReader struct {
	Count int
	// contains filtered or unexported fields
}

func (*IndexReader) Read 

func (i *IndexReader) Read(n int) (*RecordIndexEntry, error)

type Indexer added in v1.2.0 

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

func (*Indexer) Close added in v1.2.0 

func (i *Indexer) Close() error

func (*Indexer) Write added in v1.2.0 

func (i *Indexer) Write(e RecordIndexEntry) error

type Reader 

type Reader struct {
	Sections []*sectionReader
	Header   *Header
}

func Open 

func Open(file ioutil.SectionReader) (*Reader, error)

Open opens a snapshot file for reading.

func (*Reader) AsStore 

func (r *Reader) AsStore() (*Store, error)

func (*Reader) Open added in v1.2.10 

func (r *Reader) Open(typ ...SectionType) (ioutil.SectionReader, error)

Open opens the first section of the given type

func (*Reader) OpenBPT added in v1.2.10 

func (r *Reader) OpenBPT(i int) (RecordReader, error)

func (*Reader) OpenIndex 

func (r *Reader) OpenIndex(i int) (*IndexReader, error)

func (*Reader) OpenRecords 

func (r *Reader) OpenRecords(i int) (RecordReader, error)

type RecordEntry 

type RecordEntry struct {
	Key     *record.Key     `json:"key,omitempty" form:"key" query:"key" validate:"required"`
	Value   []byte          `json:"value,omitempty" form:"value" query:"value" validate:"required"`
	Receipt *merkle.Receipt `json:"receipt,omitempty" form:"receipt" query:"receipt" validate:"required"`
	// contains filtered or unexported fields
}

func (*RecordEntry) Copy 

func (v *RecordEntry) Copy() *RecordEntry

func (*RecordEntry) CopyAsInterface 

func (v *RecordEntry) CopyAsInterface() interface{}

func (*RecordEntry) Equal 

func (v *RecordEntry) Equal(u *RecordEntry) bool

func (*RecordEntry) IsValid 

func (v *RecordEntry) IsValid() error

func (*RecordEntry) MarshalBinary 

func (v *RecordEntry) MarshalBinary() ([]byte, error)

func (*RecordEntry) MarshalJSON 

func (v *RecordEntry) MarshalJSON() ([]byte, error)

func (*RecordEntry) UnmarshalBinary 

func (v *RecordEntry) UnmarshalBinary(data []byte) error

func (*RecordEntry) UnmarshalBinaryFrom 

func (v *RecordEntry) UnmarshalBinaryFrom(rd io.Reader) error

func (*RecordEntry) UnmarshalJSON 

func (v *RecordEntry) UnmarshalJSON(data []byte) error

type RecordIndexEntry 

type RecordIndexEntry struct {
	Key     record.KeyHash
	Section int
	Offset  uint64
}

type RecordReader 

type RecordReader interface {
	io.Seeker
	Read() (*RecordEntry, error)
	ReadAt(offset int64) (*RecordEntry, error)
}

type SectionType 

type SectionType uint64

SectionType is the type of a snapshot section. 

const SectionTypeAccountsV1 SectionType = 2

SectionTypeAccountsV1 contains accounts (v1). 

const SectionTypeBPT SectionType = 11

SectionTypeBPT contains the BPT, as records. 

const SectionTypeConsensus SectionType = 10

SectionTypeConsensus contains consensus parameters. 

const SectionTypeGzTransactionsV1 SectionType = 5

SectionTypeGzTransactionsV1 contains gzipped transactions (v1). 

const SectionTypeHeader SectionType = 1

SectionTypeHeader is the snapshot's header. 

const SectionTypeRawBPT SectionType = 9

SectionTypeRawBPT contains the BPT, as raw (key hash, value) pairs. 

const SectionTypeRecordIndex SectionType = 8

SectionTypeRecordIndex indexes record keys, including the offset and section number. 

const SectionTypeRecords SectionType = 7

SectionTypeRecords contains records stored as (key, record) pairs. 

const SectionTypeSignaturesV1 SectionType = 4

SectionTypeSignaturesV1 contains signatures (v1). 

const SectionTypeSnapshot SectionType = 6

SectionTypeSnapshot contains another snapshot. 

const SectionTypeTransactionsV1 SectionType = 3

SectionTypeTransactionsV1 contains transactions (v1).

func SectionTypeByName 

func SectionTypeByName(name string) (SectionType, bool)

SectionTypeByName returns the named Section Type.

func (SectionType) GetEnumValue 

func (v SectionType) GetEnumValue() uint64

GetEnumValue returns the value of the Section Type

func (SectionType) MarshalJSON 

func (v SectionType) MarshalJSON() ([]byte, error)

MarshalJSON marshals the Section Type to JSON as a string.

func (*SectionType) SetEnumValue 

func (v *SectionType) SetEnumValue(id uint64) bool

SetEnumValue sets the value. SetEnumValue returns false if the value is invalid.

func (SectionType) String 

func (v SectionType) String() string

String returns the name of the Section Type.

func (*SectionType) UnmarshalJSON 

func (v *SectionType) UnmarshalJSON(data []byte) error

UnmarshalJSON unmarshals the Section Type from JSON as a string.

type SectionWriter added in v1.2.10 

type SectionWriter struct {
	ioutil.SegmentWriter[SectionType, *SectionType]
	// contains filtered or unexported fields
}

func (*SectionWriter) SectionNumber added in v1.2.10 

func (c *SectionWriter) SectionNumber() int

func (*SectionWriter) WriteValue added in v1.2.10 

func (c *SectionWriter) WriteValue(r encoding.BinaryValue) error

type Store 

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

func (*Store) Delete 

func (s *Store) Delete(*record.Key) error

func (*Store) Get 

func (s *Store) Get(key *record.Key) ([]byte, error)

func (*Store) Put 

func (s *Store) Put(*record.Key, []byte) error

type Writer 

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

func Create 

func Create(file io.WriteSeeker) (*Writer, error)

Create opens a snapshot file for writing.

func (*Writer) OpenIndex added in v1.2.0 

func (w *Writer) OpenIndex() (*Indexer, error)

func (*Writer) OpenRaw 

func (w *Writer) OpenRaw(typ SectionType) (*SectionWriter, error)

func (*Writer) OpenRecords 

func (w *Writer) OpenRecords() (*Collector, error)

func (*Writer) WriteHeader 

func (w *Writer) WriteHeader(header *Header) error

Source Files

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