93 lines
2.0 KiB
Go
93 lines
2.0 KiB
Go
package main
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import (
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"net"
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"log"
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"github.com/ethereum/ethwire-go"
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)
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type Peer struct {
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// Server interface
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server *Server
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// Net connection
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conn net.Conn
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// Output queue which is used to communicate and handle messages
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outputQueue chan ethwire.InOutMsg
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// Quit channel
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quit chan bool
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}
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func NewPeer(conn net.Conn, server *Server) *Peer {
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return &Peer{
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outputQueue: make(chan ethwire.InOutMsg, 1), // Buffered chan of 1 is enough
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quit: make(chan bool),
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server: server,
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conn: conn,
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}
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}
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// Outputs any RLP encoded data to the peer
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func (p *Peer) QueueMessage(msgType string, data []byte) {
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p.outputQueue <- ethwire.InOutMsg{MsgType: msgType, Data: data}
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}
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// Outbound message handler. Outbound messages are handled here
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func (p *Peer) HandleOutbound() {
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out:
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for {
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select {
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// Main message queue. All outbound messages are processed through here
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case msg := <-p.outputQueue:
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// TODO Message checking and handle accordingly
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err := ethwire.WriteMessage(p.conn, msg)
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if err != nil {
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log.Println(err)
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// Stop the client if there was an error writing to it
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p.Stop()
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}
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// Break out of the for loop if a quit message is posted
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case <- p.quit:
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break out
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}
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}
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}
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// Inbound handler. Inbound messages are received here and passed to the appropriate methods
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func (p *Peer) HandleInbound() {
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defer p.Stop()
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out:
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for {
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// Wait for a message from the peer
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msg, err := ethwire.ReadMessage(p.conn)
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if err != nil {
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log.Println(err)
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break out
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}
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// TODO
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data, _ := Decode(msg.Data, 0)
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log.Printf("%s, %s\n", msg.MsgType, data)
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}
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// Notify the out handler we're quiting
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p.quit <- true
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}
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func (p *Peer) Start() {
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// Run the outbound handler in a new goroutine
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go p.HandleOutbound()
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// Run the inbound handler in a new goroutine
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go p.HandleInbound()
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}
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func (p *Peer) Stop() {
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p.conn.Close()
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p.quit <- true
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}
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