diff options
| author | Amlal El Mahrouss <amlal.elmahrouss@icloud.com> | 2025-03-23 19:13:48 +0100 |
|---|---|---|
| committer | Amlal El Mahrouss <amlal.elmahrouss@icloud.com> | 2025-03-23 19:15:17 +0100 |
| commit | a13e1c0911c0627184bc38f18c7fdda64447b3ad (patch) | |
| tree | 073a62c09bf216e85a3f310376640fa1805147f9 /dev/kernel/KernelKit/LockDelegate.h | |
| parent | 149fa096eb306d03686b3b67e813cf1a78e08cd0 (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.h | 69 |
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 |
