v/vlib/x/net/tcp_test.v

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2020-08-20 23:01:37 +02:00
import x.net as net
import time
fn handle_conn(_c net.TcpConn) {
mut c := _c
// arbitrary timeouts to ensure that it doesnt
// instantly throw its hands in the air and give up
c.set_read_timeout(10 * time.second)
c.set_write_timeout(10 * time.second)
for {
buf := []byte{ len: 100, init: 0 }
read := c.read_into(mut buf) or {
println('Server: connection dropped')
return
}
c.write(buf[..read]) or {
println('Server: connection dropped')
return
}
}
}
fn echo_server(l net.TcpListener) ? {
for {
new_conn := l.accept() or { continue }
go handle_conn(new_conn)
}
return none
}
fn echo() ? {
mut c := net.dial_tcp('127.0.0.1:30000')?
defer { c.close() or {} }
// arbitrary timeouts to ensure that it doesnt
// instantly throw its hands in the air and give up
c.set_read_timeout(10 * time.second)
c.set_write_timeout(10 * time.second)
data := 'Hello from vlib/net!'
c.write_string(data)?
buf := []byte{ len: 100, init: 0 }
read := c.read_into(mut buf)?
assert read == data.len
for i := 0; i < read; i++ {
assert buf[i] == data[i]
}
println('Got "${buf.bytestr()}"')
return none
}
fn test_tcp() {
l := net.listen_tcp(30000) or {
panic(err)
}
go echo_server(l)
echo() or {
panic(err)
}
l.close() or {
}
}
fn main() {
test_tcp()
}