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authorAmlal El Mahrouss <amlal.elmahrouss@icloud.com>2025-03-23 19:13:48 +0100
committerAmlal El Mahrouss <amlal.elmahrouss@icloud.com>2025-03-23 19:15:17 +0100
commita13e1c0911c0627184bc38f18c7fdda64447b3ad (patch)
tree073a62c09bf216e85a3f310376640fa1805147f9 /dev/kernel/KernelKit/LockDelegate.h
parent149fa096eb306d03686b3b67e813cf1a78e08cd0 (diff)
meta(kernel): Reworked repository's filesystem structure.
Removing useless parts of the project too. Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
Diffstat (limited to 'dev/kernel/KernelKit/LockDelegate.h')
-rw-r--r--dev/kernel/KernelKit/LockDelegate.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/dev/kernel/KernelKit/LockDelegate.h b/dev/kernel/KernelKit/LockDelegate.h
new file mode 100644
index 00000000..a657caa0
--- /dev/null
+++ b/dev/kernel/KernelKit/LockDelegate.h
@@ -0,0 +1,69 @@
+/* -------------------------------------------
+
+ Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Atom.h>
+#include <NewKit/Defines.h>
+
+namespace NeOS
+{
+ enum
+ {
+ kLockDone = 200,
+ kLockTimedOut,
+ };
+
+ /// @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 NeOS