Expose some read-only methods on the underlying Stream interface (#67)

* feat: expose some read-only methods on the underlying network.Stream interface

* refactor: override network.Stream instead of calling its methods individually

Co-authored-by: Jacob Heun <jacobheun@gmail.com>

conn.go

@@ -3,7 +3,6 @@ package gostream
 import (
 	"context"
 	"net"
-	"time"
 
 	"github.com/libp2p/go-libp2p-core/host"
 	"github.com/libp2p/go-libp2p-core/network"
@@ -14,60 +13,22 @@ import (
 // conn is an implementation of net.Conn which wraps
 // libp2p streams.
 type conn struct {
-	s network.Stream
+	network.Stream
 }
 
 // newConn creates a conn given a libp2p stream
 func newConn(s network.Stream) net.Conn {
 	return &conn{s}
 }
 
-// Read reads data from the connection.
-func (c *conn) Read(b []byte) (n int, err error) {
-	return c.s.Read(b)
-}
-
-// Write writes data to the connection.
-func (c *conn) Write(b []byte) (n int, err error) {
-	return c.s.Write(b)
-}
-
-// Close closes the connection.
-// Any blocked Read or Write operations will be unblocked and return errors.
-func (c *conn) Close() error {
-	return c.s.Close()
-}
-
 // LocalAddr returns the local network address.
 func (c *conn) LocalAddr() net.Addr {
-	return &addr{c.s.Conn().LocalPeer()}
+	return &addr{c.Stream.Conn().LocalPeer()}
 }
 
 // RemoteAddr returns the remote network address.
 func (c *conn) RemoteAddr() net.Addr {
-	return &addr{c.s.Conn().RemotePeer()}
-}
-
-// SetDeadline sets the read and write deadlines associated
-// with the connection. It is equivalent to calling both
-// SetReadDeadline and SetWriteDeadline.
-// See https://golang.org/pkg/net/#Conn for more details.
-func (c *conn) SetDeadline(t time.Time) error {
-	return c.s.SetDeadline(t)
-}
-
-// SetReadDeadline sets the deadline for future Read calls.
-// A zero value for t means Read will not time out.
-func (c *conn) SetReadDeadline(t time.Time) error {
-	return c.s.SetReadDeadline(t)
-}
-
-// SetWriteDeadline sets the deadline for future Write calls.
-// Even if write times out, it may return n > 0, indicating that
-// some of the data was successfully written.
-// A zero value for t means Write will not time out.
-func (c *conn) SetWriteDeadline(t time.Time) error {
-	return c.s.SetWriteDeadline(t)
+	return &addr{c.Stream.Conn().RemotePeer()}
 }
 
 // Dial opens a stream to the destination address