73 lines
1.3 KiB
Go
73 lines
1.3 KiB
Go
package serial
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import (
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"context"
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"errors"
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"io"
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"net"
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"time"
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)
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type conn struct {
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port io.ReadWriteCloser
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laddr net.Addr
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raddr net.Addr
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cancel context.CancelFunc
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}
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func NewConn(port io.ReadWriteCloser, addr net.Addr, cancel context.CancelFunc) net.Conn {
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return &conn{
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port: port,
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laddr: addr,
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raddr: &Addr{Port: "@"},
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cancel: cancel,
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}
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}
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func (c *conn) Read(b []byte) (n int, err error) {
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return c.port.Read(b)
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}
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func (c *conn) Write(b []byte) (n int, err error) {
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return c.port.Write(b)
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}
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func (c *conn) LocalAddr() net.Addr {
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return c.laddr
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}
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func (c *conn) RemoteAddr() net.Addr {
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return c.raddr
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}
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func (c *conn) SetDeadline(t time.Time) error {
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return &net.OpError{Op: "set", Net: "com", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
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}
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func (c *conn) SetReadDeadline(t time.Time) error {
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return &net.OpError{Op: "set", Net: "com", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
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}
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func (c *conn) SetWriteDeadline(t time.Time) error {
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return &net.OpError{Op: "set", Net: "com", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
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}
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func (c *conn) Close() (err error) {
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if c.cancel != nil {
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c.cancel()
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}
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return c.port.Close()
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}
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type Addr struct {
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Port string
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}
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func (a *Addr) Network() string {
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return "serial"
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}
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func (a *Addr) String() string {
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return a.Port
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}
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