Initial commit

src/table.rs

@@ -0,0 +1,38 @@
+use crate::{layout::*, pager::Pager};
+
+pub struct Table {
+    pub row_count: usize,
+    pub pager: Pager,
+}
+
+impl Table {
+    pub fn new(pager: Pager) -> Self {
+        let row_count = pager.file_len() / ROW_SIZE;
+        Self { row_count, pager }
+    }
+
+    pub fn row_slot(&self, index: usize) -> (usize, usize) {
+        self.pager.row_location(index)
+    }
+
+    pub fn close(&mut self) {
+        let total_pages = self.row_count / ROWS_PER_PAGE;
+
+        for i in 0..total_pages {
+            let page = self.pager.pages[i];
+            if page.is_none() {
+                continue;
+            }
+
+            self.pager.flush_page(i).unwrap();
+        }
+
+        let added_rows = self.row_count % ROWS_PER_PAGE;
+        if added_rows > 0 {
+            let page_num = total_pages;
+            if self.pager.pages[page_num].is_some() {
+                self.pager.flush_page(page_num).unwrap();
+            }
+        }
+    }
+}