added debug printing to peerstream

Godeps/Godeps.json

@@ -144,7 +144,7 @@
 		},
 		{
 			"ImportPath": "github.com/jbenet/go-peerstream",
-			"Rev": "cddf450fca891e45aa471d882dae2c28ac642fb4"
+			"Rev": "ccc044c2a5999f36743881ff73568660a581f2f2"
 		},
 		{
 			"ImportPath": "github.com/jbenet/go-random",

Godeps/_workspace/src/github.com/jbenet/go-peerstream/conn.go

@@ -2,6 +2,7 @@ package peerstream
 
 import (
 	"errors"
+	"fmt"
 	"net"
 	"sync"
 
@@ -55,6 +56,15 @@ func newConn(nconn net.Conn, tconn pst.Conn, s *Swarm) *Conn {
 	}
 }
 
+// String returns a string representation of the Conn
+func (c *Conn) String() string {
+	c.streamLock.RLock()
+	ls := len(c.streams)
+	c.streamLock.RUnlock()
+	f := "<peerstream.Conn %d streams %s <--> %s>"
+	return fmt.Sprintf(f, ls, c.netConn.LocalAddr(), c.netConn.RemoteAddr())
+}
+
 // Swarm returns the Swarm associated with this Conn
 func (c *Conn) Swarm() *Swarm {
 	return c.swarm

Godeps/_workspace/src/github.com/jbenet/go-peerstream/listener.go

@@ -24,6 +24,12 @@ func newListener(nl net.Listener, s *Swarm) *Listener {
 	}
 }
 
+// String returns a string representation of the Listener
+func (l *Listener) String() string {
+	f := "<peerstream.Listener %s>"
+	return fmt.Sprintf(f, l.netList.Addr())
+}
+
 // NetListener is the underlying net.Listener
 func (l *Listener) NetListener() net.Listener {
 	return l.netList

Godeps/_workspace/src/github.com/jbenet/go-peerstream/stream.go

@@ -1,6 +1,8 @@
 package peerstream
 
 import (
+	"fmt"
+
 	pst "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-peerstream/transport"
 )
 
@@ -31,6 +33,12 @@ func newStream(ss pst.Stream, c *Conn) *Stream {
 	return s
 }
 
+// String returns a string representation of the Stream
+func (s *Stream) String() string {
+	f := "<peerstream.Stream %s <--> %s>"
+	return fmt.Sprintf(f, s.conn.NetConn().LocalAddr(), s.conn.NetConn().RemoteAddr())
+}
+
 // SPDYStream returns the underlying *spdystream.Stream
 func (s *Stream) Stream() pst.Stream {
 	return s.pstStream

Godeps/_workspace/src/github.com/jbenet/go-peerstream/swarm.go

@@ -2,6 +2,7 @@ package peerstream
 
 import (
 	"errors"
+	"fmt"
 	"net"
 	"sync"
 	"time"
@@ -56,6 +57,49 @@ func NewSwarm(t pst.Transport) *Swarm {
 	return s
 }
 
+// String returns a string with various internal stats
+func (s *Swarm) String() string {
+	s.listenerLock.Lock()
+	ls := len(s.listeners)
+	s.listenerLock.Unlock()
+
+	s.connLock.Lock()
+	cs := len(s.conns)
+	s.connLock.Unlock()
+
+	s.streamLock.Lock()
+	ss := len(s.streams)
+	s.streamLock.Unlock()
+
+	str := "<peerstream.Swarm %d listeners %d conns %d streams>"
+	return fmt.Sprintf(str, ls, cs, ss)
+}
+
+// Dump returns a string with all the internal state
+func (s *Swarm) Dump() string {
+	str := s.String() + "\n"
+
+	s.listenerLock.Lock()
+	for l, _ := range s.listeners {
+		str += fmt.Sprintf("\t%s %v\n", l, l.Groups())
+	}
+	s.listenerLock.Unlock()
+
+	s.connLock.Lock()
+	for c, _ := range s.conns {
+		str += fmt.Sprintf("\t%s %v\n", c, c.Groups())
+	}
+	s.connLock.Unlock()
+
+	s.streamLock.Lock()
+	for ss, _ := range s.streams {
+		str += fmt.Sprintf("\t%s %v\n", ss, ss.Groups())
+	}
+	s.streamLock.Unlock()
+
+	return str
+}
+
 // SetStreamHandler assigns the stream handler in the swarm.
 // The handler assumes responsibility for closing the stream.
 // This need not happen at the end of the handler, leaving the