method Http2.ping
Round trip time of a PING frame.
Example:
use std.http { Server, ServerConfig, ServerHandle, Router, Request, Reply, Client, Header, HttpConfig, Response, WebSocket, WsConfig, WsKind, WsMessage, SseWriter, SseStream, SseConfig, SseEvent, BodyWriter, Http2, Http2Handle, ResponseStream, chunks }
fn run() -> () | NetError | DecodeError | Panicked net, io, time {
let srv = Server.bind(ServerConfig{ port: 0, followNode: false })?
defer srv.close()
let stop = srv.handle()
let base = "http://127.0.0.1:{srv.port()}"
let router = Router.new().get("/hi", (req: Request) => Reply.text("hi over {req.version}")).post("/echo", (req: Request) => Reply.bytes(req.body, "text/plain"))
scope {
spawn stop.serve(router)
let c = Http2.connect(base)?
defer c.close()
let rtt = c.ping(2s)?
print("{rtt.nanos() > 0}")
stop.shutdown()
()
}?
}
fn main() io, net, time {
match run() {
NetError _ => print("net error")
DecodeError _ => print("decode error")
Panicked _ => print("panicked")
_ => {}
}
}Вывод
true
pub(api) fn ping(timeout: Duration? = none) -> Duration | NetError netС версии. 1.0.0-beta
Параметры
| Имя | Тип |
|---|---|
timeout | Duration? = none |
Возвращает
Ошибки
NetError- `Timeout`, `Unavailable`.
Эффекты
net
Определено в: std/http/http.oxl:5729