feat! breaking changes on kernel sources.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/src/kernel/KernelKit/LockDelegate.h b/src/kernel/KernelKit/LockDelegate.h
new file mode 100644
index 00000000..8ff67f19
--- /dev/null
+++ b/src/kernel/KernelKit/LockDelegate.h
@@ -0,0 +1,58 @@
+/* ========================================
+
+  Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
+
+======================================== */
+
+#pragma once
+
+#include <NeKit/Atom.h>
+#include <NeKit/Defines.h>
+
+namespace Kernel {
+enum {
+  kLockInvalid  = 0,
+  kLockDone     = 200,
+  kLockTimedOut = 300,
+  kLockCount    = 3,
+};
+
+/// @brief Lock condition pointer.
+typedef Boolean* LockPtr;
+
+/// @brief Locking delegate class, hangs until limit.
+/// @tparam N the amount of cycles to wait.
+template <SizeT N>
+class LockDelegate final {
+ public:
+  LockDelegate() = delete;
+
+ public:
+  explicit LockDelegate(LockPtr expr) {
+    auto spin = 0U;
+
+    while (spin < N) {
+      if (*expr) {
+        fLockStatus | kLockDone;
+        break;
+      }
+
+      ++spin;
+    }
+
+    if (spin > N) fLockStatus | kLockTimedOut;
+  }
+
+  ~LockDelegate() = default;
+
+  LockDelegate& operator=(const LockDelegate&) = delete;
+  LockDelegate(const LockDelegate&)            = delete;
+
+  bool Done() { return fLockStatus[kLockDone] == kLockDone; }
+
+  bool HasTimedOut() { return fLockStatus[kLockTimedOut] != kLockTimedOut; }
+
+ private:
+  Atom<UInt> fLockStatus;
+};
+}  // namespace Kernel