From a13e1c0911c0627184bc38f18c7fdda64447b3ad Mon Sep 17 00:00:00 2001 From: Amlal El Mahrouss Date: Sun, 23 Mar 2025 19:13:48 +0100 Subject: meta(kernel): Reworked repository's filesystem structure. Removing useless parts of the project too. Signed-off-by: Amlal El Mahrouss --- dev/kernel/KernelKit/LockDelegate.h | 69 +++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 dev/kernel/KernelKit/LockDelegate.h (limited to 'dev/kernel/KernelKit/LockDelegate.h') 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 +#include + +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 + 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 fLockStatus; + }; +} // namespace NeOS -- cgit v1.2.3