| /* |
| * 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 |
