Method createEventSocket

src/modules/network.cpp:148–190

}

void waybar::modules::Network::createEventSocket() {
  ev_sock_ = nl_socket_alloc();
  nl_socket_disable_seq_check(ev_sock_);
  nl_socket_modify_cb(ev_sock_, NL_CB_VALID, NL_CB_CUSTOM, handleEvents, this);
  nl_socket_modify_cb(ev_sock_, NL_CB_FINISH, NL_CB_CUSTOM, handleEventsDone, this);
  auto groups = RTMGRP_LINK | RTMGRP_IPV4_IFADDR | RTMGRP_IPV6_IFADDR;
  nl_join_groups(ev_sock_, groups);  // Deprecated
  if (nl_connect(ev_sock_, NETLINK_ROUTE) != 0) {
    throw std::runtime_error("Can't connect network socket");
  }
  if (nl_socket_set_nonblocking(ev_sock_)) {
    throw std::runtime_error("Can't set non-blocking on network socket");
  }
  nl_socket_add_memberships(ev_sock_, RTNLGRP_LINK, RTNLGRP_IPV4_IFADDR, RTNLGRP_IPV6_IFADDR, 0);
  if (!config_["interface"].isString()) {
    nl_socket_add_memberships(ev_sock_, RTNLGRP_IPV4_ROUTE, RTNLGRP_IPV6_ROUTE, 0);
  }

  efd_ = epoll_create1(EPOLL_CLOEXEC);
  if (efd_ < 0) {
    throw std::runtime_error("Can't create epoll");
  }
  {
    ev_fd_ = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
    struct epoll_event event;
    memset(&event, 0, sizeof(event));
    event.events = EPOLLIN | EPOLLET;
    event.data.fd = ev_fd_;
    if (epoll_ctl(efd_, EPOLL_CTL_ADD, ev_fd_, &event) == -1) {
      throw std::runtime_error("Can't add epoll event");
    }
  }
  {
    auto fd = nl_socket_get_fd(ev_sock_);
    struct epoll_event event;
    memset(&event, 0, sizeof(event));
    event.events = EPOLLIN | EPOLLET | EPOLLRDHUP;
    event.data.fd = fd;
    if (epoll_ctl(efd_, EPOLL_CTL_ADD, fd, &event) == -1) {
      throw std::runtime_error("Can't add epoll event");
    }
  }
}

void waybar::modules::Network::createInfoSocket() {
  sock_ = nl_socket_alloc();