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Diffstat (limited to 'peer.go')
-rw-r--r--peer.go69
1 files changed, 15 insertions, 54 deletions
diff --git a/peer.go b/peer.go
index a855fe2b9..d47af73de 100644
--- a/peer.go
+++ b/peer.go
@@ -2,57 +2,24 @@ package main
import (
"net"
- "errors"
"log"
+ "github.com/ethereum/ethwire-go"
)
-type InMsg struct {
- msgType string // Specifies how the encoded data should be interpreted
- data []byte // RLP encoded data
-}
-
-type OutMsg struct {
- msgType string
- data []byte
-}
-
-func ReadMessage(conn net.Conn) (*InMsg, error) {
- buff := make([]byte, 4069)
-
- // Wait for a message from this peer
- n, err := conn.Read(buff)
- if err != nil {
- return nil, err
- } else if n == 0 {
- return nil, errors.New("Empty message received")
- }
-
- // Read the header (MAX n)
- // XXX The data specification is made up. This will change once more details have been released on the specification of the format
- decoder := NewRlpDecoder(buff[:n])
- t := decoder.Get(0).AsString()
- // If the msgdata contains no data we throw an error and disconnect the peer
- if t == "" {
- return nil, errors.New("Data contained no data type")
- }
-
- return &InMsg{msgType: t, data: decoder.Get(1).AsBytes()}, nil
-}
-
type Peer struct {
// Server interface
server *Server
// Net connection
conn net.Conn
// Output queue which is used to communicate and handle messages
- outputQueue chan OutMsg
+ outputQueue chan ethwire.InOutMsg
// Quit channel
quit chan bool
}
func NewPeer(conn net.Conn, server *Server) *Peer {
return &Peer{
- outputQueue: make(chan OutMsg, 1), // Buffered chan of 1 is enough
+ outputQueue: make(chan ethwire.InOutMsg, 1), // Buffered chan of 1 is enough
quit: make(chan bool),
server: server,
@@ -62,7 +29,7 @@ func NewPeer(conn net.Conn, server *Server) *Peer {
// Outputs any RLP encoded data to the peer
func (p *Peer) QueueMessage(msgType string, data []byte) {
- p.outputQueue <- OutMsg{msgType: msgType, data: data}
+ p.outputQueue <- ethwire.InOutMsg{MsgType: msgType, Data: data}
}
// Outbound message handler. Outbound messages are handled here
@@ -73,7 +40,13 @@ out:
// Main message queue. All outbound messages are processed through here
case msg := <-p.outputQueue:
// TODO Message checking and handle accordingly
- p.WriteMessage(msg)
+ err := ethwire.WriteMessage(p.conn, msg)
+ if err != nil {
+ log.Println(err)
+
+ // Stop the client if there was an error writing to it
+ p.Stop()
+ }
// Break out of the for loop if a quit message is posted
case <- p.quit:
@@ -82,18 +55,6 @@ out:
}
}
-// Write a message to the peer.
-func (p *Peer) WriteMessage(msg OutMsg) {
- // Encode the type and the (RLP encoded) data for sending over the wire
- encoded := Encode([]interface{}{ msg.msgType, msg.data })
- // Write to the connection
- _, err := p.conn.Write(encoded)
- if err != nil {
- log.Println(err)
- p.Stop()
- }
-}
-
// Inbound handler. Inbound messages are received here and passed to the appropriate methods
func (p *Peer) HandleInbound() {
defer p.Stop()
@@ -101,7 +62,7 @@ func (p *Peer) HandleInbound() {
out:
for {
// Wait for a message from the peer
- msg, err := ReadMessage(p.conn)
+ msg, err := ethwire.ReadMessage(p.conn)
if err != nil {
log.Println(err)
@@ -109,8 +70,8 @@ out:
}
// TODO
- data, _ := Decode(msg.data, 0)
- log.Printf("%s, %s\n", msg.msgType, data)
+ data, _ := Decode(msg.Data, 0)
+ log.Printf("%s, %s\n", msg.MsgType, data)
}
// Notify the out handler we're quiting
@@ -125,7 +86,7 @@ func (p *Peer) Start() {
}
func (p *Peer) Stop() {
- defer p.conn.Close()
+ p.conn.Close()
p.quit <- true
}