started display structure

src/display.rs

@@ -0,0 +1,31 @@
+use std::{io::Error, ptr::NonNull};
+use std::io::{ErrorKind, Result};
+
+// pull in the ffi-bindings 
+use crate::ffi::{wl_display, 
+    wl_display_create, wl_display_destroy, wl_display_destroy_clients, wl_display_add_client_created_listener,
+    wl_display_add_destroy_listener, wl_display_add_global, wl_display_add_protocol_logger, wl_display_add_shm_format,
+    wl_display_add_socket, wl_display_add_socket_auto, wl_display_add_socket_fd, wl_display_flush_clients, wl_display_run,
+    wl_display_get_client_list, wl_display_get_destroy_listener, wl_display_get_event_loop, wl_display_get_serial,
+    wl_display_init_shm, wl_display_next_serial, wl_display_remove_global, wl_display_set_global_filter, wl_display_terminate
+};
+
+pub struct Display {
+    raw: NonNull<wl_display>,
+}
+impl Display {
+    pub fn new() -> Result<Self> {
+        let ptr = unsafe { wl_display_create() };
+        let raw = match NonNull::<wl_display>::new(ptr) {
+            Some(raw) => raw,
+            None => return Err(Error::new(ErrorKind::AddrNotAvailable, "cannot create display")),
+        };
+
+        Ok(Self { raw }) 
+    }
+}
+impl Drop for Display {
+    fn drop(&mut self) {
+        unsafe { wl_display_destroy(self.raw.as_ptr()) };
+    }
+}