buffer

Documentation

Index

• Variables
• type Buffer
  • func NewBuffer(bytes []byte) *Buffer
  • func (b *Buffer) Len() int
  • func (b *Buffer) Read(offset, limit int) ([]byte, error)
  • func (b *Buffer) ReadFromFD(fd int) error
  • func (b *Buffer) ReadFromReader(reader io.Reader) (int, error)
  • func (b *Buffer) Seek(len int) ([]byte, error)

Variables

var ErrNotEnough = errors.New("not enough")

Types

type Buffer

type Buffer struct {
	Buf []byte // 应用内缓存区
	// contains filtered or unexported fields
}

buffer 读缓冲区,每个tcp长连接对应一个读缓冲区

func NewBuffer

func NewBuffer(bytes []byte) *Buffer

NewBuffer 创建一个缓存区

func (*Buffer) Len

func (b *Buffer) Len() int

func (*Buffer) Read

func (b *Buffer) Read(offset, limit int) ([]byte, error)

Read 舍弃offset个字段，读取n个字段,如果没有足够的字节，返回错误

func (*Buffer) ReadFromFD

func (b *Buffer) ReadFromFD(fd int) error

ReadFromFD 从文件描述符里面读取数据

func (*Buffer) ReadFromReader

func (b *Buffer) ReadFromReader(reader io.Reader) (int, error)

ReadFromReader 从reader里面读取数据，如果reader阻塞，会发生阻塞

func (*Buffer) Seek

func (b *Buffer) Seek(len int) ([]byte, error)

Seek 返回n个字节，而不产生移位，如果没有足够字节，返回错误