114     struct pollfd pfd[num_displays][num_events];  in vsync_loop()  local
140             pfd[dpy][ev].fd = open(node_path, O_RDONLY);  in vsync_loop()
142             if (dpy == HWC_DISPLAY_PRIMARY && pfd[dpy][ev].fd < 0) {  in vsync_loop()
155             pread(pfd[dpy][ev].fd, vdata , MAX_DATA, 0);  in vsync_loop()
156             if (pfd[dpy][ev].fd >= 0)  in vsync_loop()
157                 pfd[dpy][ev].events = POLLPRI | POLLERR;  in vsync_loop()
163             int err = poll(*pfd, num_displays * num_events, -1);  in vsync_loop()
167                         if (pfd[dpy][ev].revents & POLLPRI) {  in vsync_loop()
168                             ssize_t len = pread(pfd[dpy][ev].fd, vdata, MAX_DATA, 0);  in vsync_loop()
205             if(pfd[dpy][event].fd >= 0)  in vsync_loop()
206                 close (pfd[dpy][event].fd);  in vsync_loop()