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rpc_server.go
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rpc_server.go
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package main
import (
"fmt"
"net"
"net/rpc"
"strconv"
)
type RPCServer struct {
listener net.Listener
stopCh chan struct{}
Server *rpc.Server
RPCCmd *CliRpcCmd
}
func NewRPCServer(providedServer *rpc.Server, providedCmd *CliRpcCmd) (*RPCServer, error) {
rpcServer := &RPCServer{
Server: providedServer,
RPCCmd: providedCmd,
}
err := rpcServer.Server.Register(rpcServer.RPCCmd)
if err != nil {
return nil, err
}
return rpcServer, nil
}
func (rpcServer *RPCServer) Stop() {
close(rpcServer.stopCh)
rpcServer.listener.Close()
}
func (rpcServer *RPCServer) Port() string {
return strconv.Itoa(rpcServer.listener.Addr().(*net.TCPAddr).Port)
}
func (rpcServer *RPCServer) Start() error {
var err error
rpcServer.stopCh = make(chan struct{})
rpcServer.listener, err = net.Listen("tcp", "127.0.0.1:0")
if err != nil {
return err
}
go func() {
for {
conn, err := rpcServer.listener.Accept()
if err != nil {
select {
case <-rpcServer.stopCh:
return
default:
fmt.Println(err)
}
} else {
go rpcServer.Server.ServeConn(conn)
}
}
}()
return nil
}