go/src/compress/zlib/writer.go

const NoCompression …

const BestSpeed …

const BestCompression …

const DefaultCompression …

const HuffmanOnly …

type Writer …

// NewWriter creates a new Writer.
// Writes to the returned Writer are compressed and written to w.
//
// It is the caller's responsibility to call Close on the Writer when done.
// Writes may be buffered and not flushed until Close.
func NewWriter(w io.Writer) *Writer { … }

// NewWriterLevel is like NewWriter but specifies the compression level instead
// of assuming DefaultCompression.
//
// The compression level can be DefaultCompression, NoCompression, HuffmanOnly
// or any integer value between BestSpeed and BestCompression inclusive.
// The error returned will be nil if the level is valid.
func NewWriterLevel(w io.Writer, level int) (*Writer, error) { … }

// NewWriterLevelDict is like NewWriterLevel but specifies a dictionary to
// compress with.
//
// The dictionary may be nil. If not, its contents should not be modified until
// the Writer is closed.
func NewWriterLevelDict(w io.Writer, level int, dict []byte) (*Writer, error) { … }

// Reset clears the state of the Writer z such that it is equivalent to its
// initial state from NewWriterLevel or NewWriterLevelDict, but instead writing
// to w.
func (z *Writer) Reset(w io.Writer) { … }

// writeHeader writes the ZLIB header.
func (z *Writer) writeHeader() (err error) { … }

// Write writes a compressed form of p to the underlying io.Writer. The
// compressed bytes are not necessarily flushed until the Writer is closed or
// explicitly flushed.
func (z *Writer) Write(p []byte) (n int, err error) { … }

// Flush flushes the Writer to its underlying io.Writer.
func (z *Writer) Flush() error { … }

// Close closes the Writer, flushing any unwritten data to the underlying
// io.Writer, but does not close the underlying io.Writer.
func (z *Writer) Close() error { … }