@just-every/ensemble/dist/utils/pause_controller.js

LLM provider abstraction layer with unified streaming interface

import { EventEmitter } from 'events';
class PauseControllerImpl extends EventEmitter {
    _isPaused = false;
    isPaused() {
        return this._isPaused;
    }
    pause() {
        if (!this._isPaused) {
            this._isPaused = true;
            this.emit('paused');
            console.log('[PauseController] System paused');
        }
    }
    resume() {
        if (this._isPaused) {
            this._isPaused = false;
            this.emit('resumed');
            console.log('[PauseController] System resumed');
        }
    }
    async waitWhilePaused(checkInterval = 100, abortSignal) {
        while (this._isPaused && !abortSignal?.aborted) {
            await new Promise(resolve => setTimeout(resolve, checkInterval));
        }
        if (abortSignal?.aborted) {
            const { PauseAbortError } = await import('../types/errors.js');
            throw new PauseAbortError();
        }
    }
}
let pauseControllerInstance = null;
export function getPauseController() {
    if (!pauseControllerInstance) {
        pauseControllerInstance = new PauseControllerImpl();
    }
    return pauseControllerInstance;
}
export function isPaused() {
    return getPauseController().isPaused();
}
export function pause() {
    getPauseController().pause();
}
export function resume() {
    getPauseController().resume();
}
export async function waitWhilePaused(checkInterval, abortSignal) {
    return getPauseController().waitWhilePaused(checkInterval, abortSignal);
}
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