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timers.ts
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timers.ts
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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
import { validateCallback, validateNumber } from "./validators.js";
import { ERR_OUT_OF_RANGE } from "../_errors.ts";
import { emitWarning } from "../process.ts";
export const kTimeout = Symbol("timeout");
// Timeout values > TIMEOUT_MAX are set to 1.
export const TIMEOUT_MAX = 2 ** 31 - 1;
class Timeout {
#timeoutId: number;
// deno-lint-ignore no-explicit-any
#callback: any;
#after: number;
// deno-lint-ignore no-explicit-any
constructor(callback: any, after: number) {
this.#callback = callback;
this.#after = after;
this.#timeoutId = setTimeout(this.#callback, this.#after);
}
refresh() {
clearTimeout(this.#timeoutId);
this.#timeoutId = setTimeout(this.#callback, this.#after);
}
}
// deno-lint-ignore no-explicit-any
export function setUnrefTimeout(callback: any, after: number) {
// Type checking identical to setTimeout()
validateCallback(callback);
return new Timeout(callback, after);
}
export function getTimerDuration(msecs: number, name: string) {
validateNumber(msecs, name);
if (msecs < 0 || !Number.isFinite(msecs)) {
throw new ERR_OUT_OF_RANGE(name, "a non-negative finite number", msecs);
}
// Ensure that msecs fits into signed int32
if (msecs > TIMEOUT_MAX) {
emitWarning(
`${msecs} does not fit into a 32-bit signed integer.` +
`\nTimer duration was truncated to ${TIMEOUT_MAX}.`,
"TimeoutOverflowWarning",
);
return TIMEOUT_MAX;
}
return msecs;
}
export default {
kTimeout,
TIMEOUT_MAX,
setUnrefTimeout,
getTimerDuration,
};