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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { primordials } from "ext:core/mod.js";
const {
MapPrototypeGet,
MapPrototypeDelete,
ObjectDefineProperty,
Promise,
SafeArrayIterator,
} = primordials;
import {
activeTimers,
Immediate,
setUnrefTimeout,
Timeout,
} from "ext:deno_node/internal/timers.mjs";
import {
validateAbortSignal,
validateBoolean,
validateFunction,
validateObject,
} from "ext:deno_node/internal/validators.mjs";
import { promisify } from "ext:deno_node/internal/util.mjs";
export { setUnrefTimeout } from "ext:deno_node/internal/timers.mjs";
import * as timers from "ext:deno_web/02_timers.js";
import { AbortError } from "ext:deno_node/internal/errors.ts";
const clearTimeout_ = timers.clearTimeout;
const clearInterval_ = timers.clearInterval;
export function setTimeout(
callback: (...args: unknown[]) => void,
timeout?: number,
...args: unknown[]
) {
validateFunction(callback, "callback");
return new Timeout(callback, timeout, args, false, true);
}
ObjectDefineProperty(setTimeout, promisify.custom, {
__proto__: null,
value: (timeout: number, ...args: unknown[]) => {
return new Promise((cb) =>
setTimeout(cb, timeout, ...new SafeArrayIterator(args))
);
},
enumerable: true,
});
export function clearTimeout(timeout?: Timeout | number) {
if (timeout == null) {
return;
}
const id = +timeout;
const timer = MapPrototypeGet(activeTimers, id);
if (timer) {
timeout._destroyed = true;
MapPrototypeDelete(activeTimers, id);
}
clearTimeout_(id);
}
export function setInterval(
callback: (...args: unknown[]) => void,
timeout?: number,
...args: unknown[]
) {
validateFunction(callback, "callback");
return new Timeout(callback, timeout, args, true, true);
}
export function clearInterval(timeout?: Timeout | number | string) {
if (timeout == null) {
return;
}
const id = +timeout;
const timer = MapPrototypeGet(activeTimers, id);
if (timer) {
timeout._destroyed = true;
MapPrototypeDelete(activeTimers, id);
}
clearInterval_(id);
}
export function setImmediate(
cb: (...args: unknown[]) => void,
...args: unknown[]
): Timeout {
return new Immediate(cb, ...new SafeArrayIterator(args));
}
export function clearImmediate(immediate: Immediate) {
if (immediate == null) {
return;
}
// FIXME(nathanwhit): will probably change once
// deno_core has proper support for immediates
clearTimeout_(immediate._immediateId);
}
async function* setIntervalAsync(
after: number,
value: number,
options: { signal?: AbortSignal; ref?: boolean } = { __proto__: null },
) {
validateObject(options, "options");
if (typeof options?.signal !== "undefined") {
validateAbortSignal(options.signal, "options.signal");
}
if (typeof options?.ref !== "undefined") {
validateBoolean(options.ref, "options.ref");
}
const { signal, ref = true } = options;
if (signal?.aborted) {
throw new AbortError(undefined, { cause: signal?.reason });
}
let onCancel: (() => void) | undefined = undefined;
let interval: Timeout | undefined = undefined;
try {
let notYielded = 0;
let callback: ((value?: object) => void) | undefined = undefined;
let rejectCallback: ((message?: string) => void) | undefined = undefined;
interval = new Timeout(
() => {
notYielded++;
if (callback) {
callback();
callback = undefined;
rejectCallback = undefined;
}
},
after,
[],
true,
ref,
);
if (signal) {
onCancel = () => {
clearInterval(interval);
if (rejectCallback) {
rejectCallback(signal.reason);
callback = undefined;
rejectCallback = undefined;
}
};
signal.addEventListener("abort", onCancel, { once: true });
}
while (!signal?.aborted) {
if (notYielded === 0) {
await new Promise((resolve: () => void, reject: () => void) => {
callback = resolve;
rejectCallback = reject;
});
}
for (; notYielded > 0; notYielded--) {
yield value;
}
}
} catch (error) {
if (signal?.aborted) {
throw new AbortError(undefined, { cause: signal?.reason });
}
throw error;
} finally {
if (interval) {
clearInterval(interval);
}
if (onCancel) {
signal?.removeEventListener("abort", onCancel);
}
}
}
export const promises = {
setTimeout: promisify(setTimeout),
setImmediate: promisify(setImmediate),
setInterval: setIntervalAsync,
};
promises.scheduler = {
async wait(
delay: number,
options?: { signal?: AbortSignal },
): Promise<void> {
return await promises.setTimeout(delay, undefined, options);
},
yield: promises.setImmediate,
};
export default {
setTimeout,
clearTimeout,
setInterval,
clearInterval,
setImmediate,
setUnrefTimeout,
clearImmediate,
promises,
};
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