io_callback       784 src/libsystemd-network/sd-dhcp-client.c                                        sd_event_io_handler_t io_callback) {
io_callback       791 src/libsystemd-network/sd-dhcp-client.c                             client->fd, EPOLLIN, io_callback,
io_callback       846 src/libsystemd-network/sd-dhcp-client.c                                     sd_event_io_handler_t io_callback) {
io_callback       847 src/libsystemd-network/sd-dhcp-client.c         client_initialize_io_events(client, io_callback);
io_callback      3006 src/libsystemd/sd-bus/sd-bus.c                 r = sd_event_add_io(bus->event, &bus->input_io_event_source, bus->input_fd, 0, io_callback, bus);
io_callback      3029 src/libsystemd/sd-bus/sd-bus.c                         r = sd_event_add_io(bus->event, &bus->output_io_event_source, bus->output_fd, 0, io_callback, bus);
io_callback      1403 src/libsystemd/sd-resolve/sd-resolve.c         r = sd_event_add_io(resolve->event, &resolve->event_source, resolve->fds[RESPONSE_RECV_FD], POLLIN, io_callback, resolve);
io_callback       854 src/libsystemd/sd-rtnl/sd-rtnl.c         r = sd_event_add_io(rtnl->event, &rtnl->io_event_source, rtnl->fd, 0, io_callback, rtnl);