94 lines
2.4 KiB
JavaScript
94 lines
2.4 KiB
JavaScript
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/* os.Worker API test */
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import * as std from "std";
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import * as os from "os";
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function assert(actual, expected, message) {
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if (arguments.length == 1)
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expected = true;
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if (actual === expected)
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return;
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if (actual !== null && expected !== null
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&& typeof actual == 'object' && typeof expected == 'object'
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&& actual.toString() === expected.toString())
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return;
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throw Error("assertion failed: got |" + actual + "|" +
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", expected |" + expected + "|" +
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(message ? " (" + message + ")" : ""));
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}
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var worker;
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function test_worker()
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{
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var counter;
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/* Note: can use std.loadFile() to read from a file */
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worker = new os.Worker(`
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import * as std from "std";
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import * as os from "os";
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var parent = os.Worker.parent;
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function handle_msg(e) {
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var ev = e.data;
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// print("child_recv", JSON.stringify(ev));
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switch(ev.type) {
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case "abort":
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parent.postMessage({ type: "done" });
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break;
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case "sab":
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/* modify the SharedArrayBuffer */
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ev.buf[2] = 10;
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parent.postMessage({ type: "sab_done", buf: ev.buf });
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break;
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}
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}
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function worker_main() {
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var i;
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parent.onmessage = handle_msg;
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for(i = 0; i < 10; i++) {
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parent.postMessage({ type: "num", num: i });
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}
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}
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worker_main();
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`);
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counter = 0;
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worker.onmessage = function (e) {
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var ev = e.data;
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// print("recv", JSON.stringify(ev));
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switch(ev.type) {
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case "num":
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assert(ev.num, counter);
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counter++;
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if (counter == 10) {
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/* test SharedArrayBuffer modification */
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let sab = new SharedArrayBuffer(10);
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let buf = new Uint8Array(sab);
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worker.postMessage({ type: "sab", buf: buf });
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}
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break;
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case "sab_done":
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{
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let buf = ev.buf;
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/* check that the SharedArrayBuffer was modified */
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assert(buf[2], 10);
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worker.postMessage({ type: "abort" });
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}
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break;
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case "done":
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/* terminate */
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worker.onmessage = null;
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break;
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}
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};
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}
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test_worker();
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