#![cfg_attr(rustfmt, rustfmt_skip)]
use super::common::*;
#[cfg(feature = "server")]
use libc::{gid_t, pid_t, uid_t};
#[cfg(feature = "server")]
use std::os::raw::c_char;
use std::os::raw::{c_int, c_void};
#[cfg(all(feature = "server", feature = "dlopen"))]
use once_cell::sync::Lazy;
pub enum wl_client {}
pub enum wl_display {}
pub enum wl_event_loop {}
pub enum wl_event_source {}
pub enum wl_global {}
pub enum wl_resource {}
pub enum wl_shm_buffer {}
pub type wl_event_loop_fd_func_t = unsafe extern "C" fn(c_int, u32, *mut c_void) -> c_int;
pub type wl_event_loop_timer_func_t = unsafe extern "C" fn(*mut c_void) -> c_int;
pub type wl_event_loop_signal_func_t = unsafe extern "C" fn(c_int, *mut c_void) -> c_int;
pub type wl_event_loop_idle_func_t = unsafe extern "C" fn(*mut c_void) -> ();
pub type wl_global_bind_func_t = unsafe extern "C" fn(*mut wl_client, *mut c_void, u32, u32) -> ();
pub type wl_notify_func_t = unsafe extern "C" fn(*mut wl_listener, *mut c_void) -> ();
pub type wl_resource_destroy_func_t = unsafe extern "C" fn(*mut wl_resource) -> ();
pub type wl_display_global_filter_func_t =
unsafe extern "C" fn(*const wl_client, *const wl_global, *mut c_void) -> bool;
pub type wl_client_for_each_resource_iterator_func_t =
unsafe extern "C" fn(*mut wl_resource, *mut c_void) -> c_int;
#[repr(C)]
pub struct wl_listener {
pub link: wl_list,
pub notify: wl_notify_func_t,
}
#[repr(C)]
pub struct wl_signal {
pub listener_list: wl_list,
}
#[cfg(feature = "server")]
external_library!(WaylandServer, "wayland-server",
functions:
fn wl_client_flush(*mut wl_client) -> (),
fn wl_client_destroy(*mut wl_client) -> (),
fn wl_client_get_display(*mut wl_client) -> *mut wl_display,
fn wl_client_get_credentials(*mut wl_client, *mut pid_t, *mut uid_t, *mut gid_t) -> (),
fn wl_client_get_object(*mut wl_client, u32) -> *mut wl_resource,
fn wl_client_add_destroy_listener(*mut wl_client, *mut wl_listener) -> (),
fn wl_client_get_destroy_listener(*mut wl_client, wl_notify_func_t) -> *mut wl_listener,
fn wl_client_post_no_memory(*mut wl_client) -> (),
fn wl_resource_create(*mut wl_client, *const wl_interface, c_int, u32) -> *mut wl_resource,
fn wl_client_get_link(*mut wl_client) -> *mut wl_list,
fn wl_client_from_link(*mut wl_list) -> *mut wl_client,
fn wl_client_for_each_resource(*mut wl_client, wl_client_for_each_resource_iterator_func_t, *mut c_void) -> (),
fn wl_client_create(*mut wl_display, c_int) -> *mut wl_client,
fn wl_display_create() -> *mut wl_display,
fn wl_display_destroy(*mut wl_display) -> (),
fn wl_display_destroy_clients(*mut wl_display) -> (),
fn wl_display_get_serial(*mut wl_display) -> u32,
fn wl_display_next_serial(*mut wl_display) -> u32,
fn wl_display_add_socket(*mut wl_display, *const c_char) -> c_int,
fn wl_display_add_socket_auto(*mut wl_display) -> *const c_char,
fn wl_display_add_socket_fd(*mut wl_display, c_int) -> c_int,
fn wl_display_add_shm_format(*mut wl_display, u32) -> *mut u32,
fn wl_display_get_event_loop(*mut wl_display) -> *mut wl_event_loop,
fn wl_display_terminate(*mut wl_display) -> (),
fn wl_display_run(*mut wl_display) -> (),
fn wl_display_flush_clients(*mut wl_display) -> (),
fn wl_display_add_destroy_listener(*mut wl_display, *mut wl_listener) -> (),
fn wl_display_get_destroy_listener(*mut wl_display, wl_notify_func_t) -> *mut wl_listener,
fn wl_global_create(*mut wl_display, *const wl_interface, c_int, *mut c_void, wl_global_bind_func_t) -> *mut wl_global,
fn wl_display_init_shm(*mut wl_display) -> c_int,
fn wl_display_add_client_created_listener(*mut wl_display, *mut wl_listener) -> (),
fn wl_display_set_global_filter(*mut wl_display, wl_display_global_filter_func_t, *mut c_void) -> (),
fn wl_display_get_client_list(*mut wl_display) -> *mut wl_list,
fn wl_event_loop_create() -> *mut wl_event_loop,
fn wl_event_loop_destroy(*mut wl_event_loop) -> (),
fn wl_event_loop_add_fd(*mut wl_event_loop, c_int, u32, wl_event_loop_fd_func_t, *mut c_void) -> *mut wl_event_source,
fn wl_event_loop_add_timer(*mut wl_event_loop, wl_event_loop_timer_func_t, *mut c_void) -> *mut wl_event_source,
fn wl_event_loop_add_signal(*mut wl_event_loop, c_int, wl_event_loop_signal_func_t, *mut c_void) -> *mut wl_event_source,
fn wl_event_loop_dispatch(*mut wl_event_loop, c_int) -> c_int,
fn wl_event_loop_dispatch_idle(*mut wl_event_loop) -> (),
fn wl_event_loop_add_idle(*mut wl_event_loop, wl_event_loop_idle_func_t, *mut c_void) -> *mut wl_event_source,
fn wl_event_loop_get_fd(*mut wl_event_loop) -> c_int,
fn wl_event_loop_add_destroy_listener(*mut wl_event_loop, *mut wl_listener) -> (),
fn wl_event_loop_get_destroy_listener(*mut wl_event_loop, wl_notify_func_t) -> *mut wl_listener,
fn wl_event_source_fd_update(*mut wl_event_source, u32) -> c_int,
fn wl_event_source_timer_update(*mut wl_event_source, c_int) -> c_int,
fn wl_event_source_remove(*mut wl_event_source) -> c_int,
fn wl_event_source_check(*mut wl_event_source) -> (),
fn wl_global_remove(*mut wl_global) -> (),
fn wl_global_destroy(*mut wl_global) -> (),
fn wl_global_get_user_data(*const wl_global) -> *mut c_void,
fn wl_resource_post_event_array(*mut wl_resource, u32, *mut wl_argument) -> (),
fn wl_resource_queue_event_array(*mut wl_resource, u32, *mut wl_argument) -> (),
fn wl_resource_post_no_memory(*mut wl_resource) -> (),
fn wl_resource_set_implementation(*mut wl_resource, *const c_void, *mut c_void, Option<wl_resource_destroy_func_t>) -> (),
fn wl_resource_set_dispatcher(*mut wl_resource, wl_dispatcher_func_t, *const c_void, *mut c_void, Option<wl_resource_destroy_func_t>) -> (),
fn wl_resource_destroy(*mut wl_resource) -> (),
fn wl_resource_get_client(*mut wl_resource) -> *mut wl_client,
fn wl_resource_get_id(*mut wl_resource) -> u32,
fn wl_resource_get_link(*mut wl_resource) -> *mut wl_list,
fn wl_resource_from_link(*mut wl_list) -> *mut wl_resource,
fn wl_resource_find_for_client(*mut wl_list, *mut wl_client) -> (),
fn wl_resource_set_user_data(*mut wl_resource, *mut c_void) -> (),
fn wl_resource_get_user_data(*mut wl_resource) -> *mut c_void,
fn wl_resource_get_version(*mut wl_resource) -> c_int,
fn wl_resource_get_class(*mut wl_resource) -> *const c_char,
fn wl_resource_set_destructor(*mut wl_resource, Option<wl_resource_destroy_func_t>) -> (),
fn wl_resource_instance_of(*mut wl_resource, *const wl_interface, *const c_void) -> c_int,
fn wl_resource_add_destroy_listener(*mut wl_resource, *mut wl_listener) -> (),
fn wl_resource_get_destroy_listener(*mut wl_resource, wl_notify_func_t) -> *mut wl_listener,
fn wl_shm_buffer_begin_access(*mut wl_shm_buffer) -> (),
fn wl_shm_buffer_end_access(*mut wl_shm_buffer) -> (),
fn wl_shm_buffer_get(*mut wl_resource) -> *mut wl_shm_buffer,
fn wl_shm_buffer_get_data(*mut wl_shm_buffer) -> *mut c_void,
fn wl_shm_buffer_get_stride(*mut wl_shm_buffer) -> i32,
fn wl_shm_buffer_get_format(*mut wl_shm_buffer) -> u32,
fn wl_shm_buffer_get_width(*mut wl_shm_buffer) -> i32,
fn wl_shm_buffer_get_height(*mut wl_shm_buffer) -> i32,
fn wl_log_set_handler_server(wl_log_func_t) -> (),
fn wl_list_init(*mut wl_list) -> (),
fn wl_list_insert(*mut wl_list, *mut wl_list) -> (),
fn wl_list_remove(*mut wl_list) -> (),
fn wl_list_length(*const wl_list) -> c_int,
fn wl_list_empty(*const wl_list) -> c_int,
fn wl_list_insert_list(*mut wl_list,*mut wl_list) -> (),
fn wl_array_init(*mut wl_array) -> (),
fn wl_array_release(*mut wl_array) -> (),
fn wl_array_add(*mut wl_array,usize) -> (),
fn wl_array_copy(*mut wl_array, *mut wl_array) -> (),
varargs:
fn wl_resource_post_event(*mut wl_resource, u32) -> (),
fn wl_resource_queue_event(*mut wl_resource, u32) -> (),
fn wl_resource_post_error(*mut wl_resource, u32, *const c_char) -> (),
);
#[cfg(all(feature = "server", feature = "dlopen"))]
pub fn wayland_server_option() -> Option<&'static WaylandServer> {
static WAYLAND_SERVER_OPTION: Lazy<Option<WaylandServer>> = Lazy::new(||{
let versions = ["libwayland-server.so.0", "libwayland-server.so"];
for ver in &versions {
match unsafe { WaylandServer::open(ver) } {
Ok(h) => return Some(h),
Err(::dlib::DlError::CantOpen(_)) => continue,
Err(::dlib::DlError::MissingSymbol(s)) => {
log::error!("Found library {} cannot be used: symbol {} is missing.", ver, s);
return None;
}
}
}
None
});
WAYLAND_SERVER_OPTION.as_ref()
}
#[cfg(all(feature = "server", feature = "dlopen"))]
pub fn wayland_server_handle() -> &'static WaylandServer {
static WAYLAND_SERVER_HANDLE: Lazy<&'static WaylandServer> = Lazy::new(|| wayland_server_option().expect("Library libwayland-server.so could not be loaded."));
&WAYLAND_SERVER_HANDLE
}
#[cfg(all(feature = "server", not(feature = "dlopen")))]
pub fn is_lib_available() -> bool {
true
}
#[cfg(all(feature = "server", feature = "dlopen"))]
pub fn is_lib_available() -> bool {
wayland_server_option().is_some()
}
#[cfg(feature = "server")]
pub mod signal {
#![allow(clippy::cast_ptr_alignment, clippy::missing_safety_doc)]
#[cfg(feature = "dlopen")]
use super::wayland_server_handle as wsh;
#[cfg(not(feature = "dlopen"))]
use super::{wl_list_init, wl_list_insert};
use super::{wl_listener, wl_notify_func_t, wl_signal};
use crate::common::wl_list;
use std::os::raw::c_void;
use std::ptr;
macro_rules! container_of(
($ptr: expr, $container: ident, $field: ident) => {
($ptr as *mut u8).sub(memoffset::offset_of!($container, $field)) as *mut $container
}
);
macro_rules! list_for_each(
($pos: ident, $head:expr, $container: ident, $field: ident, $action: block) => {
let mut $pos = container_of!((*$head).next, $container, $field);
while &mut (*$pos).$field as *mut _ != $head {
$action;
$pos = container_of!((*$pos).$field.next, $container, $field);
}
}
);
macro_rules! list_for_each_safe(
($pos: ident, $head: expr, $container: ident, $field: ident, $action: block) => {
let mut $pos = container_of!((*$head).next, $container, $field);
let mut tmp = container_of!((*$pos).$field.next, $container, $field);
while &mut (*$pos).$field as *mut _ != $head {
$action;
$pos = tmp;
tmp = container_of!((*$pos).$field.next, $container, $field);
}
}
);
pub unsafe fn wl_signal_init(signal: *mut wl_signal) {
ffi_dispatch!(wsh(), wl_list_init, unsafe { &mut (*signal).listener_list });
}
pub unsafe fn wl_signal_add(signal: *mut wl_signal, listener: *mut wl_listener) {
ffi_dispatch!(
wsh(),
wl_list_insert,
unsafe { (*signal).listener_list.prev },
unsafe { &mut (*listener).link }
)
}
pub unsafe fn wl_signal_get(
signal: *mut wl_signal,
notify: wl_notify_func_t,
) -> *mut wl_listener {
unsafe {
list_for_each!(l, &mut (*signal).listener_list as *mut wl_list, wl_listener, link, {
#[allow(unknown_lints)]
#[allow(unpredictable_function_pointer_comparisons)]
if (*l).notify == notify {
return l;
}
});
}
ptr::null_mut()
}
pub unsafe fn wl_signal_emit(signal: *mut wl_signal, data: *mut c_void) {
unsafe {
list_for_each_safe!(l, &mut (*signal).listener_list as *mut wl_list, wl_listener, link, {
((*l).notify)(l, data);
});
}
}
#[repr(C)]
struct ListenerWithUserData {
listener: wl_listener,
user_data: *mut c_void,
}
pub fn rust_listener_create(notify: wl_notify_func_t) -> *mut wl_listener {
let data = Box::into_raw(Box::new(ListenerWithUserData {
listener: wl_listener {
link: wl_list { prev: ptr::null_mut(), next: ptr::null_mut() },
notify,
},
user_data: ptr::null_mut(),
}));
unsafe { std::ptr::addr_of_mut!((*data).listener) }
}
pub unsafe fn rust_listener_get_user_data(listener: *mut wl_listener) -> *mut c_void {
let data = unsafe { container_of!(listener, ListenerWithUserData, listener) };
unsafe { (*data).user_data }
}
pub unsafe fn rust_listener_set_user_data(listener: *mut wl_listener, user_data: *mut c_void) {
let data = unsafe { container_of!(listener, ListenerWithUserData, listener) };
unsafe { (*data).user_data = user_data }
}
pub unsafe fn rust_listener_destroy(listener: *mut wl_listener) {
let data = unsafe { container_of!(listener, ListenerWithUserData, listener) };
let _ = unsafe { Box::from_raw(data) };
}
}