Documentation
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Overview ¶
Package io provides useful functions with io operations
Index ¶
- type ExtendedBufferedReader
- func (r *ExtendedBufferedReader) Buffered() int
- func (r *ExtendedBufferedReader) Peek(n int) ([]byte, error)
- func (r *ExtendedBufferedReader) Read(buf []byte) (int, error)
- func (r *ExtendedBufferedReader) ReadByte() (byte, error)
- func (r *ExtendedBufferedReader) ReadBytes(delim byte) ([]byte, error)
- func (r *ExtendedBufferedReader) Reset(reader io.Reader)
- func (r *ExtendedBufferedReader) UnreadByte() error
- func (r *ExtendedBufferedReader) WriteTo(w io.Writer) (n int64, err error)
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type ExtendedBufferedReader ¶
type ExtendedBufferedReader struct {
// contains filtered or unexported fields
}
ExtendedBufferedReader extend bufio.Reader.Read method
func NewExtendedBufferedReader ¶
func NewExtendedBufferedReader(reader *bufio.Reader) *ExtendedBufferedReader
NewExtendedBufferedReader return new ExtendedBufferedReader
func (*ExtendedBufferedReader) Buffered ¶
func (r *ExtendedBufferedReader) Buffered() int
Buffered returns the number of bytes that can be read from the current buffer.
func (*ExtendedBufferedReader) Peek ¶
func (r *ExtendedBufferedReader) Peek(n int) ([]byte, error)
Peek returns the next n bytes without advancing the reader. The bytes stop being valid at the next read call. If Peek returns fewer than n bytes, it also returns an error explaining why the read is short. The error is ErrBufferFull if n is larger than b's buffer size.
func (*ExtendedBufferedReader) Read ¶
func (r *ExtendedBufferedReader) Read(buf []byte) (int, error)
Read until buf full or return error
when postgresql return a lot of data he will return as sequence of packets
func (*ExtendedBufferedReader) ReadByte ¶
func (r *ExtendedBufferedReader) ReadByte() (byte, error)
ReadByte reads and returns a single byte. If no byte is available, returns an error.
func (*ExtendedBufferedReader) ReadBytes ¶
func (r *ExtendedBufferedReader) ReadBytes(delim byte) ([]byte, error)
ReadBytes reads until the first occurrence of delim in the input, returning a slice containing the data up to and including the delimiter. If ReadBytes encounters an error before finding a delimiter, it returns the data read before the error and the error itself (often io.EOF). ReadBytes returns err != nil if and only if the returned data does not end in delim. For simple uses, a Scanner may be more convenient.
func (*ExtendedBufferedReader) Reset ¶
func (r *ExtendedBufferedReader) Reset(reader io.Reader)
Reset discards any buffered data, resets all state, and switches the buffered reader to read from r.
func (*ExtendedBufferedReader) UnreadByte ¶
func (r *ExtendedBufferedReader) UnreadByte() error
UnreadByte unreads the last byte. Only the most recently read byte can be unread.
Source Files