67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
package tunnel
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import (
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"bufio"
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"net"
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)
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//WedgeConn -- A buffered IO infront of a connection allowing peeking, and switching connections.
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type WedgeConn struct {
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reader *bufio.Reader
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net.Conn
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}
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//NewWedgeConn -- Constructor
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func NewWedgeConn(c net.Conn) (p *WedgeConn) {
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p = new(WedgeConn)
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p.reader = bufio.NewReader(c)
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p.Conn = c
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return
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}
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//NewWedgeConnSize -- Constructor
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func NewWedgeConnSize(c net.Conn, size int) (p *WedgeConn) {
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p = new(WedgeConn)
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p.reader = bufio.NewReaderSize(c, size)
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p.Conn = c
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return
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}
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//Discard - discard a number of bytes, perhaps after peeking at the
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func (w *WedgeConn) Discard(n int) (int, error) {
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return w.reader.Discard(n)
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}
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//Peek - Get a number of bytes outof the buffer, but allow the buffer to be replayed once read
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func (w *WedgeConn) Peek(n int) ([]byte, error) {
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return w.reader.Peek(n)
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}
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//ReadByte -- A normal reader.
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func (w *WedgeConn) ReadByte() (byte, error) {
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return w.reader.ReadByte()
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}
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//Read -- A normal reader.
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func (w *WedgeConn) Read(p []byte) (int, error) {
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return w.reader.Read(p)
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}
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//Buffered --
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func (w *WedgeConn) Buffered() int {
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return w.reader.Buffered()
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}
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//PeekAll --
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// - get all the chars available
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// - pass then back
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func (w *WedgeConn) PeekAll() ([]byte, error) {
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// We first peek with 1 so that if there is no buffered data the reader will
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// fill the buffer before we read how much data is buffered.
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if _, err := w.Peek(1); err != nil {
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return nil, err
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}
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return w.Peek(w.Buffered())
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}
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