Implemented RPC framework

etherpc/server.go

@@ -0,0 +1,59 @@
+package etherpc
+
+import (
+	"github.com/ethereum/eth-go/ethutil"
+	"net"
+	"net/rpc"
+	"net/rpc/jsonrpc"
+)
+
+type JsonRpcServer struct {
+	quit     chan bool
+	listener net.Listener
+}
+
+func (s *JsonRpcServer) exitHandler() {
+out:
+	for {
+		select {
+		case <-s.quit:
+			s.listener.Close()
+			break out
+		}
+	}
+
+	ethutil.Config.Log.Infoln("[JSON] Shutdown JSON-RPC server")
+}
+
+func (s *JsonRpcServer) Stop() {
+	close(s.quit)
+}
+
+func (s *JsonRpcServer) Start() {
+	ethutil.Config.Log.Infoln("[JSON] Starting JSON-RPC server")
+	go s.exitHandler()
+	rpc.Register(new(MainPackage))
+	rpc.HandleHTTP()
+
+	for {
+		conn, err := s.listener.Accept()
+		if err != nil {
+			ethutil.Config.Log.Infoln("[JSON] Error starting JSON-RPC:", err)
+			continue
+		}
+		ethutil.Config.Log.Debugln("[JSON] Incoming request.")
+		go jsonrpc.ServeConn(conn)
+	}
+}
+
+func NewJsonRpcServer() *JsonRpcServer {
+	l, err := net.Listen("tcp", ":30304")
+	if err != nil {
+		ethutil.Config.Log.Infoln("Error starting JSON-RPC")
+	}
+
+	return &JsonRpcServer{
+		listener: l,
+		quit:     make(chan bool),
+	}
+}