Method waitForIO

src/ringbuffer.js:436–449

* Wait for any I/O (stdin or network) * @param {number} timeout - Timeout in ms (-1 for infinite) * @returns {boolean} - True if I/O is available

(timeout)

     * @returns {boolean} - True if I/O is available
     */
    waitForIO(timeout) {
        const lastSignal = Atomics.load(this.int32, IO_READY_INDEX);
        
        // Check if already ready
        if (this.hasStdinData() || this.hasNetworkData()) {
            return true;
        }
        
        // Wait for signal
        const t = timeout < 0 ? undefined : timeout;
        const result = Atomics.wait(this.int32, IO_READY_INDEX, lastSignal, t);
        
        return result !== 'timed-out';
    }
    
    /**
     * Get current IO signal value (for external wait coordination)