| /* | |
| * 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_SEM_BARE_H_ | |
| #define _SYNC_SEM_BARE_H_ | |
| /* An unmanaged semaphore; i.e. the caller stores the state related to the | |
| * semaphore itself. This can be useful in scenarios such as CAmkES, where | |
| * immediate concurrency means we have a race on initialising a managed | |
| * semaphore. | |
| */ | |
| #include <sel4/sel4.h> | |
| int sync_sem_bare_wait(seL4_CPtr ep, volatile int *value); | |
| int sync_sem_bare_trywait(seL4_CPtr ep, volatile int *value); | |
| int sync_sem_bare_post(seL4_CPtr ep, volatile int *value); | |
| #endif |