qt_helpers.h

// SPDX-FileCopyrightText: © 2026 Alexandros Theodotou <alex@zrythm.org>
// SPDX-License-Identifier: LicenseRef-ZrythmLicense
 
#pragma once
 
#include <QEventLoop>
#include <QFuture>
#include <QFutureWatcher>
#include <QTimer>
 
namespace zrythm::test_helpers
{

template <typename T>
bool
waitForFutureWithEvents (QFuture<T> &future, int timeout_ms = 30000)
{
  if (future.isFinished ())
    return true;
 
  QFutureWatcher<T> watcher;
  QEventLoop        loop;
  bool              timed_out = false;
 
  QObject::connect (
    &watcher, &QFutureWatcher<T>::finished, &loop, [&loop, &timed_out] () {
      timed_out = false;
      loop.quit ();
    });
 
  watcher.setFuture (future);
 
  // Timeout to prevent infinite hang
  QTimer::singleShot (timeout_ms, &loop, [&loop, &timed_out] () {
    timed_out = true;
    loop.quit ();
  });
 
  loop.exec ();
 
  return !timed_out && future.isFinished ();
}
 
} // namespace zrythm::test_helpers