Method umockdevProcessInotify

src/Library/UMockdevDeviceManager.cpp:242–280

  }

  void UMockdevDeviceManager::umockdevProcessInotify()
  {
    char buffer[sizeof (inotify_event) + NAME_MAX + 1] __attribute__((aligned(__alignof__(inotify_event))));

    if (read (_inotify_fd, buffer, sizeof buffer) <= 0) {
      USBGUARD_LOG(Warning) << "Inotify event read size mismatch";
      return;
    }

    const struct inotify_event* const event = reinterpret_cast<inotify_event*>(buffer);

    if (event->len <= 0 || event->len > NAME_MAX) {
      USBGUARD_LOG(Warning) << "Inotify event pathname size is out-of-range.";
      return;
    }

    std::string definitions_path(event->name, event->len);
    USBGUARD_LOG(Debug) << "inotify: definitions_path= " << definitions_path << " event_mask=" << event->mask;

    if (event->mask & IN_CREATE) {
      USBGUARD_LOG(Debug) << "inotify: IN_CREATE";

      for (const auto& sysfs_path : umockdevLoadFromFile(_umockdev_deviceroot + "/" + definitions_path)) {
        umockdevAdd(_sysfs_path_map.at(sysfs_path));
        //umockdev_testbed_uevent(_testbed.get(), sysfs_path.c_str(), "add");
      }
    }
    else if (event->mask & IN_DELETE) {
      USBGUARD_LOG(Debug) << "inotify: IN_DELETE";

      for (const auto& sysfs_path : umockdevRemoveByFile(_umockdev_deviceroot + "/" + definitions_path)) {
        umockdevRemove(_sysfs_path_map.at(sysfs_path));
        //umockdev_testbed_uevent(_testbed.get(), sysfs_path.c_str(), "remove");
      }
    }
    else {
      USBGUARD_LOG(Debug) << "inotify: Ignoring event.";
    }
  }

  std::vector<std::string> UMockdevDeviceManager::umockdevLoadFromFile(const std::string& definitions_path)
  {