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83bece56b0
Even if bootstrapping the JS runtime is low level, it's an abstraction leak of core to require users to call `Deno.core.ops()` in JS space. So instead we're introducing a `JsRuntime::sync_ops_cache()` method, once we have runtime extensions a new runtime will ensure the ops cache is setup (for the provided extensions) and then loading/unloading plugins should be the only operations that require op cache syncs
66 lines
1.6 KiB
JavaScript
66 lines
1.6 KiB
JavaScript
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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// This is not a real HTTP server. We read blindly one time into 'requestBuf',
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// then write this fixed 'responseBuf'. The point of this benchmark is to
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// exercise the event loop in a simple yet semi-realistic way.
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const requestBuf = new Uint8Array(64 * 1024);
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const responseBuf = new Uint8Array(
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"HTTP/1.1 200 OK\r\nContent-Length: 12\r\n\r\nHello World\n"
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.split("")
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.map((c) => c.charCodeAt(0)),
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);
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/** Listens on 0.0.0.0:4500, returns rid. */
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function listen() {
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return Deno.core.opSync("listen");
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}
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/** Accepts a connection, returns rid. */
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function accept(serverRid) {
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return Deno.core.opAsync("accept", serverRid);
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}
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/**
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* Reads a packet from the rid, presumably an http request. data is ignored.
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* Returns bytes read.
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*/
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function read(rid, data) {
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return Deno.core.opAsync("read", rid, data);
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}
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/** Writes a fixed HTTP response to the socket rid. Returns bytes written. */
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function write(rid, data) {
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return Deno.core.opAsync("write", rid, data);
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}
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function close(rid) {
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Deno.core.opSync("close", rid);
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}
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async function serve(rid) {
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try {
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while (true) {
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await read(rid, requestBuf);
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await write(rid, responseBuf);
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}
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} catch (e) {
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if (
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!e.message.includes("Broken pipe") &&
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!e.message.includes("Connection reset by peer")
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) {
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throw e;
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}
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}
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close(rid);
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}
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async function main() {
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const listenerRid = listen();
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Deno.core.print(`http_bench_ops listening on http://127.0.0.1:4544/\n`);
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while (true) {
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const rid = await accept(listenerRid);
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serve(rid);
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}
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}
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main();
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