| /* | |
| * Copyright 2014, NICTA | |
| * | |
| * This software may be distributed and modified according to the terms of | |
| * the BSD 2-Clause license. Note that NO WARRANTY is provided. | |
| * See "LICENSE_BSD2.txt" for details. | |
| * | |
| * @TAG(NICTA_BSD) | |
| */ | |
| #ifndef _SYNC_SPINLOCK_H_ | |
| #define _SYNC_SPINLOCK_H_ | |
| /* Interface for spin locks. Note, the underlying implementation is not | |
| * seL4-specific. Spin locks should not be used when you have threads of | |
| * different priorities. | |
| */ | |
| typedef int sync_spinlock_t; | |
| int sync_spinlock_init(sync_spinlock_t *lock); | |
| int sync_spinlock_lock(sync_spinlock_t *lock); | |
| int sync_spinlock_trylock(sync_spinlock_t *lock); | |
| int sync_spinlock_unlock(sync_spinlock_t *lock); | |
| int sync_spinlock_destroy(sync_spinlock_t *lock); | |
| #endif |