appendable

Documentation

Overview

Copyright 2019-2020 vChain, Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Copyright 2019-2020 vChain, Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Copyright 2019-2020 vChain, Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Index

• Constants
• type Appendable
• type Metadata
  • func NewMetadata(b []byte) *Metadata
  • func (m *Metadata) Bytes() []byte
  • func (m *Metadata) Get(key string) ([]byte, bool)
  • func (m *Metadata) GetInt(key string) (int, bool)
  • func (m *Metadata) Put(key string, value []byte)
  • func (m *Metadata) PutInt(key string, n int)
  • func (m *Metadata) ReadFrom(r io.Reader) (int64, error)
  • func (m *Metadata) WriteTo(w io.Writer) (n int64, err error)
• type Reader
  • func NewReaderFrom(rAt io.ReaderAt, off int64, size int) *Reader
  • func (r *Reader) Offset() int64
  • func (r *Reader) Read(bs []byte) (n int, err error)
  • func (r *Reader) ReadByte() (byte, error)
  • func (r *Reader) ReadUint32() (uint32, error)
  • func (r *Reader) ReadUint64() (uint64, error)
  • func (r *Reader) Reset()

Constants

const (
	NoCompression = iota
	FlateCompression
	GZipCompression
	LZWCompression
	ZLibCompression
)

const (
	BestSpeed          = flate.BestSpeed
	BestCompression    = flate.BestCompression
	DefaultCompression = flate.DefaultCompression
	HuffmanOnly        = flate.HuffmanOnly
)

const DefaultCompressionFormat = NoCompression

const DefaultCompressionLevel = BestSpeed

Types

type Appendable

type Appendable interface {
	Metadata() []byte
	Size() (int64, error)
	Offset() int64
	SetOffset(off int64) error
	Append(bs []byte) (off int64, n int, err error)
	Flush() error
	Sync() error
	ReadAt(bs []byte, off int64) (int, error)
	Close() error
}

type Metadata

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

func NewMetadata

func NewMetadata(b []byte) *Metadata

func (*Metadata) Bytes

func (m *Metadata) Bytes() []byte

func (*Metadata) Get

func (m *Metadata) Get(key string) ([]byte, bool)

func (*Metadata) GetInt

func (m *Metadata) GetInt(key string) (int, bool)

func (*Metadata) Put

func (m *Metadata) Put(key string, value []byte)

func (*Metadata) PutInt

func (m *Metadata) PutInt(key string, n int)

func (*Metadata) ReadFrom

func (m *Metadata) ReadFrom(r io.Reader) (int64, error)

func (*Metadata) WriteTo

func (m *Metadata) WriteTo(w io.Writer) (n int64, err error)

type Reader

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

func NewReaderFrom

func NewReaderFrom(rAt io.ReaderAt, off int64, size int) *Reader

func (*Reader) Offset

func (r *Reader) Offset() int64

func (*Reader) Read

func (r *Reader) Read(bs []byte) (n int, err error)

func (*Reader) ReadByte

func (r *Reader) ReadByte() (byte, error)

func (*Reader) ReadUint32

func (r *Reader) ReadUint32() (uint32, error)

func (*Reader) ReadUint64

func (r *Reader) ReadUint64() (uint64, error)

func (*Reader) Reset

func (r *Reader) Reset()