implement GetStreams

package.json

@@ -69,9 +69,9 @@
     },
     {
       "author": "whyrusleeping",
-      "hash": "QmNbLFRGG1uHVfQM2fRFrhc7dgjThXkYUAp5qChFqxYNSH",
+      "hash": "QmUQhsqvLehBDWjFq3C3nT6ZkGEsdPWSzxV6sNAzjRMfQQ",
       "name": "go-peerstream",
-      "version": "1.3.0"
+      "version": "1.4.0"
     },
     {
       "author": "whyrusleeping",

swarm_conn.go

@@ -92,7 +92,13 @@ func (c *Conn) Close() error {
 }
 
 func (c *Conn) GetStreams() ([]inet.Stream, error) {
-	return nil, fmt.Errorf("GetStreams() not yet implemented")
+	ss := c.StreamConn().Streams()
+	out := make([]inet.Stream, len(ss))
+
+	for i, s := range ss {
+		out[i] = (*Stream)(s)
+	}
+	return out, nil
 }
 
 func wrapConn(psc *ps.Conn) (*Conn, error) {

swarm_net_test.go

@@ -165,6 +165,15 @@ func TestNetworkOpenStream(t *testing.T) {
 		t.Fatal(err)
 	}
 
+	streams, err := nets[0].ConnsToPeer(nets[1].LocalPeer())[0].GetStreams()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(streams) != 1 {
+		t.Fatal("should only have one stream there")
+	}
+
 	_, err = s.Write([]byte("hello ipfs"))
 	if err != nil {
 		t.Fatal(err)