From d6d4f2a0d9fa5699d613379136cf318635ed6091 Mon Sep 17 00:00:00 2001
From: jackjohn7 <70782491+jackjohn7@users.noreply.github.com>
Date: Mon, 15 Jun 2026 22:35:03 -0500
Subject: [PATCH] feat: bounds check, refactor

---
 src/jalloc.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/src/jalloc.c b/src/jalloc.c
index 7508b0e..4bd6120 100644
--- a/src/jalloc.c
+++ b/src/jalloc.c
@@ -2,13 +2,21 @@
 #include <stdio.h>
 #include <stdint.h>
 
-#define HEAP_SIZE (1024 * 1024)
+#define HEAP_SIZE (1024 * 1024 * 2)
+#define ALIGNMENT 8
 
 static uint8_t heap[HEAP_SIZE];
-static size_t heap_offset = 0;
+static uint8_t *heap_ptr = heap;
 
-void* jalloc(size_t size) {
-    void* ptr = &heap[heap_offset];
-    heap_offset += size;
+/**
+ * Allocate memory via bump allocation
+ */
+void *jalloc(size_t size) {
+    if (heap_ptr + size > heap + sizeof(heap)) return NULL;
+
+    void *ptr = heap_ptr;
+    heap_ptr += size;
     return ptr;
 }
+
+void jfree(void *ptr) {}