package ioutils

import "github.com/docker/docker/pkg/ioutils"

Index ¶

• func FprintfIfNotEmpty(w io.Writer, format, value string) (int, error)
• func HashData(src io.Reader) (string, error)
• func MultiReadSeeker(readers ...io.ReadSeeker) io.ReadSeeker
• func NewBufReader(r io.Reader) *bufReader
• func NewBufReaderWithDrainbufAndBuffer(r io.Reader, drainBuffer []byte, buffer *bytes.Buffer) *bufReader
• func NewReadCloserWrapper(r io.Reader, closer func() error) io.ReadCloser
• func NewReaderErrWrapper(r io.Reader, closer func()) io.Reader
• func NewWriteCloserWrapper(r io.Writer, closer func() error) io.WriteCloser
• func NopWriteCloser(w io.Writer) io.WriteCloser
• type NopFlusher
• func (f *NopFlusher) Flush()
• type NopWriter
• func (*NopWriter) Write(buf []byte) (int, error)
• type OnEOFReader
• func (r *OnEOFReader) Close() error
• func (r *OnEOFReader) Read(p []byte) (n int, err error)
• type WriteCounter
• func NewWriteCounter(w io.Writer) *WriteCounter
• func (wc *WriteCounter) Write(p []byte) (count int, err error)
• type WriteFlusher
• func NewWriteFlusher(w io.Writer) *WriteFlusher
• func (wf *WriteFlusher) Flush()
• func (wf *WriteFlusher) Flushed() bool
• func (wf *WriteFlusher) Write(b []byte) (n int, err error)

Functions ¶

func FprintfIfNotEmpty ¶

func FprintfIfNotEmpty(w io.Writer, format, value string) (int, error)

FprintfIfNotEmpty prints the string value if it's not empty

func HashData ¶

func HashData(src io.Reader) (string, error)

func MultiReadSeeker ¶

func MultiReadSeeker(readers ...io.ReadSeeker) io.ReadSeeker

MultiReadSeeker returns a ReadSeeker that's the logical concatenation of the provided input readseekers. After calling this method the initial position is set to the beginning of the first ReadSeeker. At the end of a ReadSeeker, Read always advances to the beginning of the next ReadSeeker and returns EOF at the end of the last ReadSeeker. Seek can be used over the sum of lengths of all readseekers.

When a MultiReadSeeker is used, no Read and Seek operations should be made on its ReadSeeker components. Also, users should make no assumption on the state of individual readseekers while the MultiReadSeeker is used.

func NewBufReader ¶

func NewBufReader(r io.Reader) *bufReader

func NewBufReaderWithDrainbufAndBuffer ¶

func NewBufReaderWithDrainbufAndBuffer(r io.Reader, drainBuffer []byte, buffer *bytes.Buffer) *bufReader

func NewReadCloserWrapper ¶

func NewReadCloserWrapper(r io.Reader, closer func() error) io.ReadCloser

func NewReaderErrWrapper ¶

func NewReaderErrWrapper(r io.Reader, closer func()) io.Reader

func NewWriteCloserWrapper ¶

func NewWriteCloserWrapper(r io.Writer, closer func() error) io.WriteCloser

func NopWriteCloser ¶

func NopWriteCloser(w io.Writer) io.WriteCloser

Types ¶

type NopFlusher ¶

type NopFlusher struct{}

func (*NopFlusher) Flush ¶

func (f *NopFlusher) Flush()

type NopWriter ¶

type NopWriter struct{}

func (*NopWriter) Write ¶

func (*NopWriter) Write(buf []byte) (int, error)

type OnEOFReader ¶

type OnEOFReader struct {
	Rc io.ReadCloser
	Fn func()
}

func (*OnEOFReader) Close ¶

func (r *OnEOFReader) Close() error

func (*OnEOFReader) Read ¶

func (r *OnEOFReader) Read(p []byte) (n int, err error)

type WriteCounter ¶

type WriteCounter struct {
	Count  int64
	Writer io.Writer
}

Wrap a concrete io.Writer and hold a count of the number of bytes written to the writer during a "session". This can be convenient when write return is masked (e.g., json.Encoder.Encode())

func NewWriteCounter ¶

func NewWriteCounter(w io.Writer) *WriteCounter

func (*WriteCounter) Write ¶

func (wc *WriteCounter) Write(p []byte) (count int, err error)

type WriteFlusher ¶

type WriteFlusher struct {
	sync.Mutex
	// contains filtered or unexported fields
}

func NewWriteFlusher ¶

func NewWriteFlusher(w io.Writer) *WriteFlusher

func (*WriteFlusher) Flush ¶

func (wf *WriteFlusher) Flush()

Flush the stream immediately.

func (*WriteFlusher) Flushed ¶

func (wf *WriteFlusher) Flushed() bool

func (*WriteFlusher) Write ¶

func (wf *WriteFlusher) Write(b []byte) (n int, err error)

Source Files ¶

fmt.go multireader.go readers.go scheduler.go writeflusher.go writers.go