| /* |
| * 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 |
