added array bindings

src/array.rs

@@ -0,0 +1,46 @@
+use std::io::{Error, ErrorKind, Result};
+use std::ptr::NonNull;
+use crate::ffi::wl_array;
+use crate::ffi::{wl_array_add, wl_array_copy, wl_array_init, wl_array_release};
+
+pub struct Array {
+    raw: NonNull<wl_array>,
+}
+impl Array {
+    pub fn new() -> Result<Self> {
+        let raw: *mut wl_array = std::ptr::null_mut();
+        unsafe { wl_array_init(raw) };
+
+        Ok(Self { raw: NonNull::new(raw).unwrap() })
+    }
+
+    /// Increases the size of the array by size bytes
+    ///
+    /// * `size` - Number of bytes to increase the size of the array by
+    pub fn add(&self, size: usize) -> Result<()> {
+        let ptr = unsafe { wl_array_add(self.raw.as_ptr(), size) };
+
+        if ptr.is_null() {
+            return Err(Error::new(ErrorKind::OutOfMemory, "unable to resize array"));
+        }
+        Ok(())
+    }
+
+    /// Copies the contents of `source` to this `array`
+    ///
+    /// * `source` - Source array to copy from
+    pub fn copy(&self, source: &mut Array) -> Result<()> {
+        let ret = unsafe { wl_array_copy(self.raw.as_ptr(), source.raw.as_ptr()) };
+
+        if ret != 0 {
+            return Err(Error::new(ErrorKind::Other, "unable to copy array"));
+        }
+        Ok(())
+    }
+
+    /// Release the array data
+    /// Leaves the array in an invalid state
+    pub fn release(&self) {
+        unsafe { wl_array_release(self.raw.as_ptr()) };
+    }
+}