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authorobscuren <geffobscura@gmail.com>2014-01-10 17:58:46 +0800
committerobscuren <geffobscura@gmail.com>2014-01-10 17:58:46 +0800
commit19addcb51a1d100db483be98ee660b73dd5070d7 (patch)
tree235e82eb1e35accd18f016880e426f4ab5e2adc7 /peer.go
parentce40e51ae53af9679e11f8ced934ae8ee3b2db6f (diff)
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Comments
Diffstat (limited to 'peer.go')
-rw-r--r--peer.go16
1 files changed, 16 insertions, 0 deletions
diff --git a/peer.go b/peer.go
index 15e0fdcf1..a855fe2b9 100644
--- a/peer.go
+++ b/peer.go
@@ -31,6 +31,7 @@ func ReadMessage(conn net.Conn) (*InMsg, error) {
// 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")
}
@@ -39,9 +40,13 @@ func ReadMessage(conn net.Conn) (*InMsg, error) {
}
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
+ // Quit channel
quit chan bool
}
@@ -60,21 +65,28 @@ func (p *Peer) QueueMessage(msgType string, data []byte) {
p.outputQueue <- OutMsg{msgType: msgType, data: data}
}
+// Outbound message handler. Outbound messages are handled here
func (p *Peer) HandleOutbound() {
out:
for {
select {
+ // Main message queue. All outbound messages are processed through here
case msg := <-p.outputQueue:
+ // TODO Message checking and handle accordingly
p.WriteMessage(msg)
+ // Break out of the for loop if a quit message is posted
case <- p.quit:
break 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)
@@ -82,11 +94,13 @@ func (p *Peer) WriteMessage(msg OutMsg) {
}
}
+// Inbound handler. Inbound messages are received here and passed to the appropriate methods
func (p *Peer) HandleInbound() {
defer p.Stop()
out:
for {
+ // Wait for a message from the peer
msg, err := ReadMessage(p.conn)
if err != nil {
log.Println(err)
@@ -104,7 +118,9 @@ out:
}
func (p *Peer) Start() {
+ // Run the outbound handler in a new goroutine
go p.HandleOutbound()
+ // Run the inbound handler in a new goroutine
go p.HandleInbound()
}