134         if (b->input_fd != b->output_fd)  in bus_close_io_fds()
135                 safe_close(b->output_fd);  in bus_close_io_fds()
136         b->output_fd = b->input_fd = safe_close(b->input_fd);  in bus_close_io_fds()
243                 .output_fd = -1,  in sd_bus_new()
274 _public_ int sd_bus_set_fd(sd_bus *bus, int input_fd, int output_fd) {  in sd_bus_set_fd()  argument
279         assert_return(output_fd >= 0, -EBADF);  in sd_bus_set_fd()
283         bus->output_fd = output_fd;  in sd_bus_set_fd()
1152         assert(b->output_fd >= 0);  in bus_start_fd()
1157                 (void) fd_get_path(b->output_fd, &po);  in bus_start_fd()
1160                           b->input_fd, b->output_fd,  in bus_start_fd()
1172         if (b->input_fd != b->output_fd) {  in bus_start_fd()
1173                 r = fd_nonblock(b->output_fd, true);  in bus_start_fd()
1177                 r = fd_cloexec(b->output_fd, true);  in bus_start_fd()
2493         assert_return(bus->input_fd == bus->output_fd, -EPERM);  in sd_bus_get_fd()
3302                 if (bus->output_fd == bus->input_fd) {  in bus_poll()
3307                         p[1].fd = bus->output_fd;  in bus_poll()
3640         if (bus->output_fd != bus->input_fd) {  in prepare_callback()
3722         if (bus->output_fd != bus->input_fd) {  in bus_attach_io_events()
3723                 assert(bus->output_fd >= 0);  in bus_attach_io_events()
3726 …r = sd_event_add_io(bus->event, &bus->output_io_event_source, bus->output_fd, 0, io_callback, bus);  in bus_attach_io_events()
3736                         r = sd_event_source_set_io_fd(bus->output_io_event_source, bus->output_fd);  in bus_attach_io_events()