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denoland-deno/tools/deno_tcp_proxy.ts
Ry Dahl d492c5abe3
feat: Deno.args now does not include script (#3628)
Previously Deno.args was ["script.js", "arg1", "arg2"]
Now it is just ["arg1", "arg2"]
BREAKING CHANGE
2020-01-09 11:37:01 -07:00

30 lines
870 B
TypeScript

// Used for benchmarking Deno's tcp proxy perfromance. See tools/http_benchmark.py
const addr = Deno.args[0] || "127.0.0.1:4500";
const originAddr = Deno.args[1] || "127.0.0.1:4501";
const [hostname, port] = addr.split(":");
const [originHostname, originPort] = originAddr.split(":");
const listener = Deno.listen({ hostname, port: Number(port) });
async function handle(conn: Deno.Conn): Promise<void> {
const origin = await Deno.dial({
hostname: originHostname,
port: Number(originPort)
});
try {
await Promise.all([Deno.copy(conn, origin), Deno.copy(origin, conn)]);
} catch (err) {
if (err.message !== "read error" && err.message !== "write error") {
throw err;
}
} finally {
conn.close();
origin.close();
}
}
console.log(`Proxy listening on http://${addr}/`);
for await (const conn of listener) {
handle(conn);
}