void process_netlink(int ci)
{
struct msgtemplate msg;
struct nlattr *na;
int len;
int fd;
fd = client_fd(ci);
len = recv(fd, &msg, sizeof(msg), 0);
if (len < 0) {
log_error("nonfatal netlink error: errno %d", errno);
return;
}
if (msg.n.nlmsg_type == NLMSG_ERROR || !NLMSG_OK((&msg.n), len)) {
struct nlmsgerr *err = NLMSG_DATA(&msg);
log_error("fatal netlink error: errno %d", err->error);
return;
}
na = (struct nlattr *) GENLMSG_DATA(&msg);
process_timewarn((struct dlm_lock_data *) NLA_DATA(na));
}
void ProxySession::Run(std::error_code& ec)
{
FileDesc client_fd(Connect(ec));
if(ec)
{
LOG(WARNING) << "Error connecting: " << ec.message();
return;
}
// now we have open fd's for both client and server we
// enter an event loop waiting for data to read from either source
FileDesc epoll_fd(epoll_create(2));
if(!epoll_fd.IsValid())
{
ec = std::error_code(errno, std::system_category());
return;
}
if(!RegisterForDataAvailable(epoll_fd, m_server_fd, ec) || !RegisterForDataAvailable(epoll_fd, client_fd, ec))
{
ec = std::error_code(errno, std::system_category());
return;
}
while(!ec)
{
RunOne(epoll_fd, client_fd, ec);
}
}
void exec_server_process(int (*socket_pairs)[2]) {
pid_t pid = fork();
if (pid == 0) {
const int client_num = get_client_count();
close_all_client_fd_except(socket_pairs, client_num, -1);
for (int i = 0; i < client_num; i++) {
move_fd(client_fd(i), socket_pairs[i][kFdConnectToServer]);
}
execv(get_server_name(), NULL);
exit(0);
}
}
