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#pragma once
#define SPIN_LOCK_COUNT_INL_H_
#include "spin_lock_count-inl.h"
#undef SPIN_LOCK_COUNT_INL_H_
namespace NYT::NThreading {
// Tracks the number of spinlocks currently held by the thread.
// Generally useful to ensure that we are not holding a spinlock
// in a given context.
// Tracking is only active in debug builds.
////////////////////////////////////////////////////////////////////////////////
namespace NDetail {
// In order to properly support tracking in your spinlock you have to do two steps:
// 1) Insert RecordSpinlockAcquired and RecordSpinlockReleased inside your
// (Try)Acquire and Release calls.
// 2) (Optional) Write REGISTER_TRACKED_SPIN_LOCK_CLASS(TSpinLock) for your spinlock
// so that you can use algorithms aware of spinlock tracking.
using NPrivate::RecordSpinLockAcquired;
using NPrivate::RecordSpinLockReleased;
template <class TSpinLock>
struct TIsTrackedSpinLock
: public std::false_type
{ };
#define REGISTER_TRACKED_SPIN_LOCK_CLASS(Name) \
namespace NDetail { \
\
template <> \
struct TIsTrackedSpinLock<Name> \
: public std::true_type \
{ }; \
\
} \
} // namespace NDetail
////////////////////////////////////////////////////////////////////////////////
template <class T>
concept CTrackedSpinLock = NDetail::TIsTrackedSpinLock<T>::value;
//! Semantic requirements:
//! 1) T must have a method successful call to which begins critical section (e.g. Acquire).
//! 2) T must have a method successful call to which ends critical section (e.g. Release).
//! In (1) and (2) "successful" is expected to have a definition given by T's author.
//! 3) Beggining of a critical section CS must be sequenced before RecordSpinlockAcquired(true) call.
//! 4) RecordSpinlockAcquired(true) call must be sequenced before RecordSpinlockReleased() call.
//! 5) RecordSpinlockReleased() must be sequenced before the ending of the CS.
////////////////////////////////////////////////////////////////////////////////
using NPrivate::VerifyNoSpinLockAffinity;
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT::NThreading
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