feat: allocator: block: expose internal blocks

lib/allocator/src/block.rs

@@ -3,17 +3,21 @@ use core::cmp::min;
 use utils::addr::{AddressOps, PhysAddr};
 
 #[derive(Copy, Clone, Debug)]
-struct Block {
+pub struct Block {
     start: PhysAddr,
     size:  usize,
 }
 
 impl Block {
-    fn start_addr(&self) -> PhysAddr {
+    pub fn start_addr(&self) -> PhysAddr {
         self.start
     }
 
-    fn end_addr(&self) -> PhysAddr {
+    pub fn size(&self) -> usize {
+        self.size
+    }
+
+    pub fn end_addr(&self) -> PhysAddr {
         self.start + self.size
     }
 
@@ -137,6 +141,14 @@ impl<const N: usize> RamBlock<N> {
             }
         }
     }
+
+    pub fn blocks(&self) -> &[Option<Block>; N] {
+        &self.blocks
+    }
+
+    pub fn blocks_mut(&mut self) -> &mut [Option<Block>; N] {
+        &mut self.blocks
+    }
 }
 
 impl<const N: usize> Default for RamBlock<N> {