foo.cpp

/**
 * Adds the game list folder to the QFileSystemWatcher to check for updates.
 *
 * The file watcher will fire off an update to the game list when a change is detected in the
 * game list folder.
 *
 * Notice: This method is run on the UI thread because QFileSystemWatcher is not thread safe
 * and this function is fast enough to not stall the UI thread. If performance is an issue, it
 * should be moved to another thread and properly locked to prevent concurrency issues.
 *
 * @param dir folder to check for changes in
 * @param recursion 0 if recursion is disabled. Any positive number passed to this will add each
 *        directory recursively to the watcher and will update the file list if any of the folders
 *        change. The number determines how deep the recursion should traverse.
 */