/
sync.go
71 lines (58 loc) · 1.22 KB
/
sync.go
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package handlers
import (
"bufio"
"fmt"
"github.com/libp2p/go-libp2p-core/network"
"log"
"os"
)
/*
handles blockchain synchronization
*/
const ProtocolSyncID = "sync"
const ProtocolSyncFullID = "syncall"
const ProtocolSyncLightID = "synclite"
func SyncHandler(stream network.Stream) {
log.Printf("got a new sync request")
rw := bufio.NewReadWriter(bufio.NewReader(stream), bufio.NewWriter(stream))
go readData(rw)
go writeData(rw)
}
func readData(rw *bufio.ReadWriter) {
for {
str, err := rw.ReadString('\n')
if err != nil {
fmt.Println("Error reading from buffer")
panic(err)
}
if str == "" {
return
}
if str != "\n" {
// Green console colour: \x1b[32m
// Reset console colour: \x1b[0m
fmt.Printf("\x1b[32m%s\x1b[0m> ", str)
}
}
}
func writeData(rw *bufio.ReadWriter) {
stdReader := bufio.NewReader(os.Stdin)
for {
fmt.Print("> ")
sendData, err := stdReader.ReadString('\n')
if err != nil {
fmt.Println("Error reading from stdin")
panic(err)
}
_, err = rw.WriteString(fmt.Sprintf("%s\n", sendData))
if err != nil {
fmt.Println("Error writing to buffer")
panic(err)
}
err = rw.Flush()
if err != nil {
fmt.Println("Error flushing buffer")
panic(err)
}
}
}