Enrico Fraccaroli (Galfurian)
34 lines
926 B
C
34 lines
926 B
C
/// @file spinlock.h
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/// @brief
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/// @copyright (c) 2014-2022 This file is distributed under the MIT License.
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/// See LICENSE.md for details.
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#pragma once
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#include "klib/stdatomic.h"
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/// Determines if the spinlock is free.
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#define SPINLOCK_FREE 0
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/// Determines if the spinlock is busy.
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#define SPINLOCK_BUSY 1
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/// @brief Spinlock structure.
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typedef atomic_t spinlock_t;
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/// @brief Initialize the spinlock.
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/// @param spinlock The spinlock we initialize.
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void spinlock_init(spinlock_t *spinlock);
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/// @brief Try to lock the spinlock.
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/// @param spinlock The spinlock we lock.
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void spinlock_lock(spinlock_t *spinlock);
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/// @brief Try to unlock the spinlock.
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/// @param spinlock The spinlock we unlock.
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void spinlock_unlock(spinlock_t *spinlock);
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/// @brief Try to unlock the spinlock.
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/// @param spinlock The spinlock we try to block.
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/// @return 1 if succeeded, 0 otherwise.
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int spinlock_trylock(spinlock_t *spinlock);
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