refactor: reorganize kernel structure and implement memory management zonesHEADmain

1 files changed, 37 insertions, 0 deletions

diff --git a/mirai/memory/zone/types/types.zig b/mirai/memory/zone/types/types.zig
new file mode 100644
index 0000000..46543fb
--- /dev/null
+++ b/mirai/memory/zone/types/types.zig
@@ -0,0 +1,37 @@
+//! Zone Types
+
+pub const Zone = struct {
+    name: [32]u8,
+    name_len: u8,
+    elem_size: usize,
+    elems_per_page: usize,
+    partial_pages: ?*ZonePageMeta,
+    full_pages: ?*ZonePageMeta,
+    alloc_count: usize,
+    free_count: usize,
+    page_count: usize,
+
+    pub fn get_name(self: *const Zone) []const u8 {
+        return self.name[0..self.name_len];
+    }
+
+    pub fn in_use(self: *const Zone) usize {
+        return self.alloc_count -| self.free_count;
+    }
+};
+
+pub const FreeElement = struct {
+    next: ?*FreeElement,
+};
+
+pub const ZonePageMeta = struct {
+    zone: *Zone,
+    page_virt: u64,
+    page_phys: u64,
+    free_list: ?*FreeElement,
+    in_use: usize,
+    next: ?*ZonePageMeta,
+};
+
+pub const page_size: usize = 4096;
+pub const min_elem_size: usize = @sizeOf(FreeElement);