ioutil

package
Version: v1.19.0 Latest Latest
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Published: Aug 20, 2020 License: Apache-2.0 Imports: 3 Imported by: 44

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func NewNopWriteCloser

func NewNopWriteCloser(w io.Writer) io.WriteCloser

NewNopWriteCloser creates the nopWriteCloser from a writer.

func NewSerialWriteCloser added in v1.0.4

func NewSerialWriteCloser(wc io.WriteCloser) io.WriteCloser

NewSerialWriteCloser creates a SerialWriteCloser from a write closer.

func NewWrapReadCloser

func NewWrapReadCloser(r io.Reader) io.ReadCloser

NewWrapReadCloser creates a wrapReadCloser from a reader. NOTE(random-liu): To avoid goroutine leakage, the reader passed in must be eventually closed by the caller.

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)

Add adds a writer into the group. The writer will be closed if the writer group is closed.

func (*WriterGroup) Close

func (g *WriterGroup) Close()

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

func (*WriterGroup) Get

func (g *WriterGroup) Get(key string) io.WriteCloser

Get gets a writer from the group, returns nil if the writer doesn't exist.

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.

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