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50 lines
941 B
Go
50 lines
941 B
Go
package main
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import (
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nt "blockchain-from-scratch/network"
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"fmt"
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"strings"
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"time"
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)
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const (
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TO_UPPER = iota + 1
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TO_LOWER
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)
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const (
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ADDRESS = ":8080"
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)
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func main() {
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var (
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res = new(nt.Package)
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msg = "Hello, World!"
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)
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go nt.Listen(ADDRESS, handleServer)
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time.Sleep(500 * time.Millisecond)
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// send «Hello, World!»
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// receive «HELLO, WORLD!»
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res = nt.Send(ADDRESS, &nt.Package{
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Option: TO_UPPER,
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Data: msg,
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})
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fmt.Println(res.Data)
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// send «HELLO, WORLD!»
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// receive «hello, world!»
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res = nt.Send(ADDRESS, &nt.Package{
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Option: TO_LOWER,
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Data: res.Data,
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})
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fmt.Println(res.Data)
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}
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func handleServer(conn nt.Conn, pack *nt.Package) {
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nt.Handle(TO_UPPER, conn, pack, handleToUpper)
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nt.Handle(TO_LOWER, conn, pack, handleToLower)
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}
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func handleToUpper(pack *nt.Package) string {
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return strings.ToUpper(pack.Data)
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}
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func handleToLower(pack *nt.Package) string {
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return strings.ToLower(pack.Data)
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}
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