@opentelemetry/core
Version:
OpenTelemetry Core provides constants and utilities shared by all OpenTelemetry SDK packages.
40 lines • 1.52 kB
JavaScript
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
/**
* Error that is thrown on timeouts.
*/
export class TimeoutError extends Error {
constructor(message) {
super(message);
// manually adjust prototype to retain `instanceof` functionality when targeting ES5, see:
// https://github.com/Microsoft/TypeScript-wiki/blob/main/Breaking-Changes.md#extending-built-ins-like-error-array-and-map-may-no-longer-work
Object.setPrototypeOf(this, TimeoutError.prototype);
}
}
/**
* Adds a timeout to a promise and rejects if the specified timeout has elapsed. Also rejects if the specified promise
* rejects, and resolves if the specified promise resolves.
*
* <p> NOTE: this operation will continue even after it throws a {@link TimeoutError}.
*
* @param promise promise to use with timeout.
* @param timeout the timeout in milliseconds until the returned promise is rejected.
*/
export function callWithTimeout(promise, timeout) {
let timeoutHandle;
const timeoutPromise = new Promise(function timeoutFunction(_resolve, reject) {
timeoutHandle = setTimeout(function timeoutHandler() {
reject(new TimeoutError('Operation timed out.'));
}, timeout);
});
return Promise.race([promise, timeoutPromise]).then(result => {
clearTimeout(timeoutHandle);
return result;
}, reason => {
clearTimeout(timeoutHandle);
throw reason;
});
}
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