51 lines
990 B
C
51 lines
990 B
C
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#include <BH/Thread.h>
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#if defined(__clang__) || defined(__GNUC__)
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/* Using built-ins */
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#elif defined(_WIN32)
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#endif
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void BH_SpinlockLock(int *lock)
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{
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#if defined(__clang__) || defined(__GNUC__)
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while (__sync_lock_test_and_set(lock, 1));
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#elif defined(_WIN32)
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while (InterlockedExchange(lock, 1));
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#else
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#error "Spinlocks are not supported"
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#endif
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}
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int BH_SpinlockLockTry(int *lock)
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{
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#if defined(__clang__) || defined(__GNUC__)
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if (__sync_lock_test_and_set(lock, 1))
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return BH_ERROR;
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return BH_OK;
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#elif defined(_WIN32)
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if (InterlockedExchange(lock, 1))
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return BH_ERROR;
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return BH_OK;
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#else
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#error "Spinlocks are not supported"
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return BH_NOIMPL;
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#endif
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}
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void BH_SpinlockUnlock(int *lock)
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{
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#if defined(__clang__) || defined(__GNUC__)
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__sync_lock_release(lock);
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#elif defined(_WIN32)
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InterlockedExchange(lock, 0);
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#else
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#error "Spinlocks are not supported"
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#endif
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}
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