79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
/**
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* PROJECT: ExectOS
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* COPYRIGHT: See COPYING.md in the top level directory
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* FILE: xtoskrnl/includes/ke/spinlock.hh
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* DESCRIPTION: Spinlocks support
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* DEVELOPERS: Aiken Harris <harraiken91@gmail.com>
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*/
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#ifndef __XTOSKRNL_KE_SPINLOCK_HH
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#define __XTOSKRNL_KE_SPINLOCK_HH
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#include <xtos.hh>
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/* Kernel Library */
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namespace KE
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{
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class SpinLock
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{
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private:
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STATIC KSPIN_LOCK DispatcherLockQueue;
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STATIC KSPIN_LOCK PfnLockQueue;
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STATIC KSPIN_LOCK SystemSpaceLockQueue;
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public:
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STATIC XTFASTCALL VOID AcquireQueuedSpinLock(IN KSPIN_LOCK_QUEUE_LEVEL LockLevel);
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STATIC XTFASTCALL VOID AcquireSpinLock(IN OUT PKSPIN_LOCK SpinLock);
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STATIC XTAPI VOID InitializeAllLocks();
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STATIC XTAPI VOID InitializeLockQueues();
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STATIC XTAPI VOID InitializeSpinLock(IN PKSPIN_LOCK SpinLock);
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STATIC XTFASTCALL VOID ReleaseQueuedSpinLock(IN KSPIN_LOCK_QUEUE_LEVEL LockLevel);
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STATIC XTFASTCALL VOID ReleaseSpinLock(IN OUT PKSPIN_LOCK SpinLock);
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STATIC XTFASTCALL BOOLEAN TestSpinLock(IN PKSPIN_LOCK SpinLock);
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};
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class QueuedSpinLockGuard
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{
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private:
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KSPIN_LOCK_QUEUE_LEVEL QueuedLockLevel;
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public:
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QueuedSpinLockGuard(IN OUT KSPIN_LOCK_QUEUE_LEVEL LockLevel)
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{
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QueuedLockLevel = LockLevel;
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KE::SpinLock::AcquireQueuedSpinLock(QueuedLockLevel);
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}
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~QueuedSpinLockGuard()
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{
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KE::SpinLock::ReleaseQueuedSpinLock(QueuedLockLevel);
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}
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QueuedSpinLockGuard(const QueuedSpinLockGuard&) = delete;
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QueuedSpinLockGuard& operator=(const QueuedSpinLockGuard&) = delete;
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};
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class SpinLockGuard
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{
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private:
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PKSPIN_LOCK SpinLock;
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public:
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SpinLockGuard(IN OUT PKSPIN_LOCK SpinLock)
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{
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KE::SpinLock::AcquireSpinLock(SpinLock);
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}
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~SpinLockGuard()
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{
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KE::SpinLock::ReleaseSpinLock(SpinLock);
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}
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SpinLockGuard(const SpinLockGuard&) = delete;
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SpinLockGuard& operator=(const SpinLockGuard&) = delete;
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};
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}
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#endif /* __XTOSKRNL_KE_SPINLOCK_HH */
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