From 845a96f5e6bfbbbeba19bf3df07f0e9de53d9a88 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Wed, 29 Oct 2025 11:40:49 +0100
Subject: kapi: export frame_allocator interface

---
 kapi/include/kapi/memory.hpp                 |  6 ++++--
 kapi/include/kapi/memory/frame_allocator.hpp | 19 +++++++++++++++++++
 2 files changed, 23 insertions(+), 2 deletions(-)
 create mode 100644 kapi/include/kapi/memory/frame_allocator.hpp

(limited to 'kapi')

diff --git a/kapi/include/kapi/memory.hpp b/kapi/include/kapi/memory.hpp
index 3ad5ac5..3daaa86 100644
--- a/kapi/include/kapi/memory.hpp
+++ b/kapi/include/kapi/memory.hpp
@@ -1,11 +1,13 @@
 #ifndef TEACHOS_KAPI_MEMORY_HPP
 #define TEACHOS_KAPI_MEMORY_HPP
 
-#include "kapi/memory/address.hpp"  // IWYU pragma: export
-#include "kapi/memory/frame.hpp"    // IWYU pragma: export
+#include "kapi/memory/address.hpp"          // IWYU pragma: export
+#include "kapi/memory/frame.hpp"            // IWYU pragma: export
+#include "kapi/memory/frame_allocator.hpp"  // IWYU pragma: export
 
 namespace teachos::memory
 {
+  auto active_allocator() -> frame_allocator &;
   auto init() -> void;
 }  // namespace teachos::memory
 
diff --git a/kapi/include/kapi/memory/frame_allocator.hpp b/kapi/include/kapi/memory/frame_allocator.hpp
new file mode 100644
index 0000000..f9393ee
--- /dev/null
+++ b/kapi/include/kapi/memory/frame_allocator.hpp
@@ -0,0 +1,19 @@
+#ifndef TEACHOS_KAPI_MEMORY_FRAME_ALLOCATOR_HPP
+#define TEACHOS_KAPI_MEMORY_FRAME_ALLOCATOR_HPP
+
+#include "kapi/memory/frame.hpp"
+
+#include <optional>
+
+namespace teachos::memory
+{
+
+  struct frame_allocator
+  {
+    virtual auto allocate() -> std::optional<frame> = 0;
+    virtual auto release(frame frame) -> void = 0;
+  };
+
+}  // namespace teachos::memory
+
+#endif  // TEACHOS_KAPI_MEMORY_FRAME_ALLOCATOR_HPP
\ No newline at end of file
-- 
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