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revert: restore eventfd

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This commit is contained in:
Alex 2020-09-21 10:56:40 +02:00
parent dc625490f8
commit 95f505a457
2 changed files with 47 additions and 0 deletions
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2
include/modules/network.hpp
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@ -54,6 +54,8 @@ class Network : public ALabel {
struct sockaddr_nl nladdr_ = {0};
struct nl_sock* sock_ = nullptr;
struct nl_sock* ev_sock_ = nullptr;
int efd_;
int ev_fd_;
int nl80211_id_;
std::mutex mutex_;

45
src/modules/network.cpp
View File

@ -83,6 +83,8 @@ waybar::modules::Network::Network(const std::string &id, const Json::Value &conf
: ALabel(config, "network", id, "{ifname}", 60),
ifid_(-1),
family_(config["family"] == "ipv6" ? AF_INET6 : AF_INET),
efd_(-1),
ev_fd_(-1),
cidr_(-1),
signal_strength_dbm_(0),
signal_strength_(0),
@ -119,6 +121,12 @@ waybar::modules::Network::Network(const std::string &id, const Json::Value &conf
}
waybar::modules::Network::~Network() {
if (ev_fd_ > -1) {
close(ev_fd_);
}
if (efd_ > -1) {
close(efd_);
}
if (ev_sock_ != nullptr) {
nl_socket_drop_membership(ev_sock_, RTNLGRP_LINK);
if (family_ == AF_INET) {
@ -150,6 +158,30 @@ void waybar::modules::Network::createEventSocket() {
} else {
nl_socket_add_membership(ev_sock_, RTNLGRP_IPV6_IFADDR);
}
efd_ = epoll_create1(EPOLL_CLOEXEC);
if (efd_ < 0) {
throw std::runtime_error("Can't create epoll");
}
{
ev_fd_ = eventfd(0, EFD_NONBLOCK);
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() {
@ -192,6 +224,19 @@ void waybar::modules::Network::worker() {
#else
spdlog::warn("Waybar has been built without rfkill support.");
#endif
thread_ = [this] {
std::array<struct epoll_event, EPOLL_MAX> events{};
int ec = epoll_wait(efd_, events.data(), EPOLL_MAX, -1);
if (ec > 0) {
for (auto i = 0; i < ec; i++) {
if (events[i].data.fd != nl_socket_get_fd(ev_sock_) || nl_recvmsgs_default(ev_sock_) < 0) {
thread_.stop();
break;
}
}
}
};
}
const std::string waybar::modules::Network::getNetworkState() const {