binaryio

package module
v0.0.0-...-e3e9780 Latest Latest
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 Go to latest Published: Sep 8, 2018 License: MIT Imports: 5 Imported by: 1

Documentation

Overview

Package binaryio provides a wrapper to encoding/binary to provide a concise API.

Numbers are translated by reading and writing fixed-size values. A fixed-size value is either a fixed-size arithmetic type (bool, int8, uint8, int16, ...) or an array only fixed-size values.

This package is intended for decoding and encoding existing binary formats and is not written as a high performance serializer deserializer.

Index

Constants

This section is empty.

Variables

View Source 
var ErrShortRead = errors.New("short read")

Functions

func Size 

func Size(value interface{}) int

Types

type BinaryBufferReader 

type BinaryBufferReader struct {
	BinaryReader
	// contains filtered or unexported fields
}

func (BinaryBufferReader) Len 

func (reader BinaryBufferReader) Len() int

Return the number of bytes remaining in the buffer

type BinaryBufferWriter 

type BinaryBufferWriter struct {
	BinaryWriter
	// contains filtered or unexported fields
}

func (BinaryBufferWriter) Bytes 

func (writer BinaryBufferWriter) Bytes() []byte

Return the byte representation of the underlying buffer

func (BinaryBufferWriter) Len 

func (writer BinaryBufferWriter) Len() int

Return the length of the byte representation of the underlying buffer

type BinaryReader 

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

func (BinaryReader) Read 

func (reader BinaryReader) Read(value interface{}) error
Read any fixed size value. The  parameter should be a pointer to the underlying type.

// var value uint32 // if err := reader.Read(&value); err != nil { // ... // }

func (BinaryReader) ReadByte 

func (reader BinaryReader) ReadByte() (byte, error)

func (BinaryReader) ReadBytes 

func (reader BinaryReader) ReadBytes(expected int) ([]byte, error)

func (BinaryReader) ReadInt16 

func (reader BinaryReader) ReadInt16() (int16, error)

func (BinaryReader) ReadInt16s 

func (reader BinaryReader) ReadInt16s(expected int) ([]int16, error)

func (BinaryReader) ReadInt32 

func (reader BinaryReader) ReadInt32() (int32, error)

func (BinaryReader) ReadInt32s 

func (reader BinaryReader) ReadInt32s(expected int) ([]int32, error)

func (BinaryReader) ReadInt64 

func (reader BinaryReader) ReadInt64() (int64, error)

func (BinaryReader) ReadInt64s 

func (reader BinaryReader) ReadInt64s(expected int) ([]int64, error)

func (BinaryReader) ReadUint16 

func (reader BinaryReader) ReadUint16() (uint16, error)

func (BinaryReader) ReadUint16s 

func (reader BinaryReader) ReadUint16s(expected int) ([]uint16, error)

func (BinaryReader) ReadUint32 

func (reader BinaryReader) ReadUint32() (uint32, error)

func (BinaryReader) ReadUint32s 

func (reader BinaryReader) ReadUint32s(expected int) ([]uint32, error)

func (BinaryReader) ReadUint64 

func (reader BinaryReader) ReadUint64() (uint64, error)

func (BinaryReader) ReadUint64s 

func (reader BinaryReader) ReadUint64s(expected int) ([]uint64, error)

func (BinaryReader) Skip 

func (reader BinaryReader) Skip(count int) error

Skip n bytes of the output

type BinaryWriter 

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

func (BinaryWriter) Write 

func (writer BinaryWriter) Write(value interface{}) error

Write any fixed sized type or array of fixed size types

func (BinaryWriter) WriteByte 

func (writer BinaryWriter) WriteByte(b byte) error

func (BinaryWriter) WriteBytes 

func (writer BinaryWriter) WriteBytes(bytes []byte) error

func (BinaryWriter) WriteInt16 

func (writer BinaryWriter) WriteInt16(value int16) error

func (BinaryWriter) WriteInt16s 

func (writer BinaryWriter) WriteInt16s(values []int16) error

func (BinaryWriter) WriteInt32 

func (writer BinaryWriter) WriteInt32(value int32) error

func (BinaryWriter) WriteInt32s 

func (writer BinaryWriter) WriteInt32s(values []int32) error

func (BinaryWriter) WriteInt64 

func (writer BinaryWriter) WriteInt64(value int64) error

func (BinaryWriter) WriteInt64s 

func (writer BinaryWriter) WriteInt64s(values []int64) error

func (BinaryWriter) WriteUint16 

func (writer BinaryWriter) WriteUint16(value uint16) error

func (BinaryWriter) WriteUint16s 

func (writer BinaryWriter) WriteUint16s(values []uint16) error

func (BinaryWriter) WriteUint32 

func (writer BinaryWriter) WriteUint32(value uint32) error

func (BinaryWriter) WriteUint32s 

func (writer BinaryWriter) WriteUint32s(values []uint32) error

func (BinaryWriter) WriteUint64 

func (writer BinaryWriter) WriteUint64(value uint64) error

func (BinaryWriter) WriteUint64s 

func (writer BinaryWriter) WriteUint64s(values []uint64) error

type IBinaryBufferReader 

type IBinaryBufferReader interface {
	IBinaryReader
	// Get the number of bytes remaining in the buffer.
	Len() int
}

IBinaryBufferReader implements the IBinaryReader interface over a bytes.Buffer

func BigEndianBufferReader 

func BigEndianBufferReader(buf []byte) IBinaryBufferReader

Create a new big endian reader using the provided buf as the underlying stream.

func LittleEndianBufferReader 

func LittleEndianBufferReader(buf []byte) IBinaryBufferReader

Create a new little endian reader using the provided buf as the underlying stream.

type IBinaryBufferWriter 

type IBinaryBufferWriter interface {
	IBinaryWriter
	// Return the number of bytes in the buffer
	Len() int
	// Return the binary representation of
	Bytes() []byte
}

IBinaryBufferWriter implements the IBinaryWriter interfaces on top of bytes.Buffer

func BigEndianBufferWriter 

func BigEndianBufferWriter() IBinaryBufferWriter

Create a new big endian writer using a bytes.Buffer as the underlying stream

func LittleEndianBufferWriter 

func LittleEndianBufferWriter() IBinaryBufferWriter

Create a new little endian writer using a bytes.Buffer as the underlying stream

func NewBigEndianBufferWriter 

func NewBigEndianBufferWriter(capacity int) IBinaryBufferWriter

Create a new big endian writer using a bytes.Buffer as the underlying stream. The buffer will have capacity specified.

func NewLittleEndianBufferWriter 

func NewLittleEndianBufferWriter(capacity int) IBinaryBufferWriter

Create a new little endian writer using a bytes.Buffer as the underlying stream. The buffer will have capacity specified.

type IBinaryReader 

type IBinaryReader interface {
	//  Read any fixed size value. The  parameter should be a pointer to the underlying type.
	// // var value uint32
	// // if err :=  reader.Read(&value); err != nil {
	// //     ...
	// // }
	Read(value interface{}) error
	ReadByte() (byte, error)
	ReadBytes(expected int) ([]byte, error)
	ReadUint16() (uint16, error)
	ReadInt16() (int16, error)
	ReadUint16s(expected int) ([]uint16, error)
	ReadInt16s(expected int) ([]int16, error)
	ReadUint32() (uint32, error)
	ReadInt32() (int32, error)
	ReadUint32s(expected int) ([]uint32, error)
	ReadInt32s(expected int) ([]int32, error)
	ReadUint64() (uint64, error)
	ReadInt64() (int64, error)
	ReadUint64s(expected int) ([]uint64, error)
	ReadInt64s(expected int) ([]int64, error)
	//  Skip n bytes of the output
	Skip(count int) error
}

IBinaryReader wraps the encoding/binary interface to allow decoding of binary streams.

func BigEndianReaderFrom 

func BigEndianReaderFrom(reader io.Reader) IBinaryReader

Create a new big endian reader using the provided reader as the underlying stream.

func LittleEndianReaderFrom 

func LittleEndianReaderFrom(reader io.Reader) IBinaryReader

Create a new little endian reader using the provided reader as the underlying stream.

type IBinaryWriter 

type IBinaryWriter interface {
	//  Write any fixed sized type or array of fixed size types
	Write(interface{}) error
	WriteByte(byte) error
	WriteBytes([]byte) error
	WriteInt16(int16) error
	WriteUint16(uint16) error
	WriteInt16s([]int16) error
	WriteUint16s([]uint16) error
	WriteInt32(int32) error
	WriteUint32(uint32) error
	WriteInt32s([]int32) error
	WriteUint32s([]uint32) error
	WriteInt64(int64) error
	WriteUint64(uint64) error
	WriteInt64s([]int64) error
	WriteUint64s([]uint64) error
}

IBinaryWriter exposes methods to write fixed sized numbers to an underlying writer implementation

func NewBigEndianFromWriter 

func NewBigEndianFromWriter(writer io.Writer) IBinaryWriter

Create a new big endian writer using the provided writer as the underlying stream

func NewLittleEndianFromWriter 

func NewLittleEndianFromWriter(writer io.Writer) IBinaryWriter

Create a new little endian writer using the provided writer as the underlying stream

Source Files

View all Source files

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