134         for(size_t ev = 0; ev < num_events; ev++) {  in vsync_loop()  local
140                     event_list[ev].name);  in vsync_loop()
143                     ev, dpy, node_path);  in vsync_loop()
144             pfd[dpy][ev].fd = open(node_path, O_RDONLY);  in vsync_loop()
146             if (dpy == HWC_DISPLAY_PRIMARY && pfd[dpy][ev].fd < 0) {  in vsync_loop()
150                         __FUNCTION__, dpy, ev, strerror(errno));  in vsync_loop()
151                 if (ev == 0) {  in vsync_loop()
159             pread(pfd[dpy][ev].fd, vdata , MAX_DATA, 0);  in vsync_loop()
160             if (pfd[dpy][ev].fd >= 0)  in vsync_loop()
161                 pfd[dpy][ev].events = POLLPRI | POLLERR;  in vsync_loop()
170                     for(size_t ev = 0; ev < num_events; ev++) {  in vsync_loop()  local
171                         if (pfd[dpy][ev].revents & POLLPRI) {  in vsync_loop()
172                             ssize_t len = pread(pfd[dpy][ev].fd, vdata, MAX_DATA, 0);  in vsync_loop()
178                                         __FUNCTION__, ev, dpy, strerror(errno));  in vsync_loop()
181                             event_list[ev].callback(ctx, dpy, vdata);  in vsync_loop()