Documentation
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Overview ¶
Package bufio implements buffered I/O. It wraps an io.Reader or io.Writer object, creating another object (Reader or AsyncWriter) that also implements the interface but provides buffering and some help for textual I/O.
Index ¶
- type AsyncWriter
- func (b *AsyncWriter) Available() int
- func (b *AsyncWriter) Buffered() int
- func (b *AsyncWriter) Flush() error
- func (b *AsyncWriter) ReadFrom(r io.Reader) (n int64, err error)
- func (b *AsyncWriter) WaitForWrites() error
- func (b *AsyncWriter) Write(p []byte) (nn int, err error)
- func (b *AsyncWriter) WriteByte(c byte) error
- func (b *AsyncWriter) WriteRune(r rune) (size int, err error)
- func (b *AsyncWriter) WriteString(s string) (int, error)
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type AsyncWriter ¶
type AsyncWriter struct {
// contains filtered or unexported fields
}
AsyncWriter implements buffering for an io.Writer object. If an error occurs writing to a AsyncWriter, no more data will be accepted and all subsequent writes will return the error.
func NewAsyncWriter ¶
func NewAsyncWriter(wr io.Writer) *AsyncWriter
NewAsyncWriter returns a new AsyncWriter whose buffer has the default size.
func NewAsyncWriterSize ¶
func NewAsyncWriterSize(wr io.Writer, size int, count int) *AsyncWriter
NewAsyncWriterSize returns a new AsyncWriter whose buffer has at least the specified size. If the argument io.Writer is already a AsyncWriter with large enough size, it returns the underlying AsyncWriter.
func (*AsyncWriter) Available ¶
func (b *AsyncWriter) Available() int
Available returns how many bytes are unused in the buffer.
func (*AsyncWriter) Buffered ¶
func (b *AsyncWriter) Buffered() int
Buffered returns the number of bytes that have been written into the current buffer.
func (*AsyncWriter) Flush ¶
func (b *AsyncWriter) Flush() error
func (*AsyncWriter) ReadFrom ¶
func (b *AsyncWriter) ReadFrom(r io.Reader) (n int64, err error)
ReadFrom implements io.ReaderFrom.
func (*AsyncWriter) WaitForWrites ¶
func (b *AsyncWriter) WaitForWrites() error
func (*AsyncWriter) Write ¶
func (b *AsyncWriter) Write(p []byte) (nn int, err error)
Write writes the contents of p into the buffer. It returns the number of bytes written. If nn < len(p), it also returns an error explaining why the write is short.
func (*AsyncWriter) WriteByte ¶
func (b *AsyncWriter) WriteByte(c byte) error
WriteByte writes a single byte.
func (*AsyncWriter) WriteRune ¶
func (b *AsyncWriter) WriteRune(r rune) (size int, err error)
WriteRune writes a single Unicode code point, returning the number of bytes written and any error.
func (*AsyncWriter) WriteString ¶
func (b *AsyncWriter) WriteString(s string) (int, error)
WriteString writes a string. It returns the number of bytes written. If the count is less than len(s), it also returns an error explaining why the write is short.
Source Files