Go Systems Programming

An RPC client

In this section, we will develop an RPC client named RPCclient.go. The Go code of RPCclient.go will be presented in five parts; the first part is the following:

package main 
 
import ( 
   "fmt" 
   "net/rpc" 
   "os" 
   "sharedRPC" 
) 

Note the use of the sharedRPC package in the RPC client.

The second part of RPCclient.go is the following:

func main() { 
   arguments := os.Args 
   if len(arguments) == 1 { 
         fmt.Println("Please provide a host:port string!") 
         os.Exit(100) 
   } 
 
   CONNECT := arguments[1] 

The third part of the program has the following Go code:

   c, err := rpc.Dial("tcp", CONNECT) 
   if err != nil { 
         fmt.Println(err) 
         os.Exit(100) 
   } 
 
   args := sharedRPC.MyInts{17, 18, true, false} 
   var reply int 

As the MyInts structure is defined in sharedRPC.go, you ...