124     struct pollfd pfd[num_displays][num_events];  in vsync_loop()  local
145             pfd[dpy][ev].fd = open(node_path, O_RDONLY);  in vsync_loop()
147             if (dpy == HWC_DISPLAY_PRIMARY && pfd[dpy][ev].fd < 0) {  in vsync_loop()
160             pread(pfd[dpy][ev].fd, vdata , MAX_DATA, 0);  in vsync_loop()
161             if (pfd[dpy][ev].fd >= 0)  in vsync_loop()
162                 pfd[dpy][ev].events = POLLPRI | POLLERR;  in vsync_loop()
168             int err = poll(*pfd, (int)(num_displays * num_events), -1);  in vsync_loop()
172                         if (pfd[dpy][ev].revents & POLLPRI) {  in vsync_loop()
173                             ssize_t len = pread(pfd[dpy][ev].fd, vdata, MAX_DATA, 0);  in vsync_loop()
210             if(pfd[dpy][event].fd >= 0)  in vsync_loop()
211                 close (pfd[dpy][event].fd);  in vsync_loop()