ioutil

Documentation

Index

• func NewNopWriteCloser(w io.Writer) io.WriteCloser
• func NewWriteCloseInformer(wc io.WriteCloser) (io.WriteCloser, <-chan struct{})
• type WriterGroup
  • func NewWriterGroup() *WriterGroup
  • func (g *WriterGroup) Add(key string, w io.WriteCloser) error
  • func (g *WriterGroup) Close()
  • func (g *WriterGroup) Remove(key string)
  • func (g *WriterGroup) Write(p []byte) (int, error)

Functions

func NewNopWriteCloser

func NewNopWriteCloser(w io.Writer) io.WriteCloser

NewNopWriteCloser creates the nopWriteCloser from a writer.

func NewWriteCloseInformer

func NewWriteCloseInformer(wc io.WriteCloser) (io.WriteCloser, <-chan struct{})

NewWriteCloseInformer creates the writeCloseInformer from a write closer.

Types

type WriterGroup

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

WriterGroup is a group of writers. Writer could be dynamically added and removed.

func NewWriterGroup

func NewWriterGroup() *WriterGroup

NewWriterGroup creates an empty writer group.

func (*WriterGroup) Add

func (g *WriterGroup) Add(key string, w io.WriteCloser) error

Add adds a writer into the group, returns an error when writer group is closed.

func (*WriterGroup) Close

func (g *WriterGroup) Close()

Close closes the writer group. Write or Add will return error after closed.

func (*WriterGroup) Remove

func (g *WriterGroup) Remove(key string)

Remove removes a writer from the group.

func (*WriterGroup) Write

func (g *WriterGroup) Write(p []byte) (int, error)

Write writes data into each writer. If a writer returns error, it will be closed and removed from the writer group. It returns error if writer group is empty.