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30 lines
837 B
30 lines
837 B
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include <pthread.h>
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#ifdef __APPLE__
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// Spinlocks do not exist on mac
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typedef struct {
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int __whatever;
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} pthread_spinlock_t;
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extern int pthread_spin_init(pthread_spinlock_t* __lock, int __pshared);
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extern int pthread_spin_destroy(pthread_spinlock_t* __lock);
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extern int pthread_spin_lock(pthread_spinlock_t* __lock);
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extern int pthread_spin_trylock(pthread_spinlock_t* __lock);
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extern int pthread_spin_unlock(pthread_spinlock_t* __lock);
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#endif
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void spinlock_double_lock_bad(pthread_spinlock_t* m) {
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pthread_spin_lock(m);
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pthread_spin_lock(m);
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}
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void spinlock_double_lock_bad2() {
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pthread_spinlock_t m;
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spinlock_double_lock_bad(&m);
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}
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