46 lines
997 B
V
46 lines
997 B
V
import net
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// This file shows how a basic TCP echo server can be implemented using
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// the `net` module. You can connect to the server by using netcat
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// or telnet, in separate shells, for example:
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// `nc 127.0.0.1 12345`
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// `telnet 127.0.0.1 12345`
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fn handle_connection(con net.Socket) {
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peer_ip := con.peer_ip() or {
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'0.0.0.0'
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}
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eprintln('${peer_ip:16} | new client connected')
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defer {
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eprintln('${peer_ip:16} | closing connection...')
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con.close() or { }
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}
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con.send_string("Welcome to V's TCP Echo server.\n") or {
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return
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}
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for {
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line := con.read_line()
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if line.len == 0 {
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return
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}
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eprintln('${peer_ip:16} | received line: ' + line.trim_space())
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con.send_string(line) or {
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return
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}
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}
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}
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fn main() {
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server_port := 12345
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eprintln('Starting an echo server, listening on port: $server_port')
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server := net.listen(server_port) or {
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panic(err)
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}
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for {
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con := server.accept() or {
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server.close() or { }
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panic(err)
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}
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go handle_connection(con)
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}
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}
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