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| author | H. Peter Anvin <hpa@zytor.com> | 2009-09-14 21:34:57 -0700 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2011-04-09 18:27:06 -0700 |
| commit | 83d03ef60fe5cdb7083e12e18b2ac83c567c29d5 (patch) | |
| tree | 967c7b059ef7dc4e73a50574b00a31752997dd56 | |
| parent | cd8b37053cc36014379fefdecf1d409bc7dc5b45 (diff) | |
| download | syslinux-83d03ef60fe5cdb7083e12e18b2ac83c567c29d5.tar.gz syslinux-83d03ef60fe5cdb7083e12e18b2ac83c567c29d5.tar.xz syslinux-83d03ef60fe5cdb7083e12e18b2ac83c567c29d5.zip | |
core: thread: add static declaration of semaphores
Add the ability to statically declare initialized semaphores.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
| -rw-r--r-- | core/include/thread.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/core/include/thread.h b/core/include/thread.h index 7d346760..e82a80b2 100644 --- a/core/include/thread.h +++ b/core/include/thread.h @@ -46,6 +46,15 @@ struct semaphore { struct thread_list list; }; +#define DECLARE_INIT_SEMAPHORE(sem, cnt) \ + struct semaphore sem = { \ + .count = (cnt), \ + .list = { \ + .next = &sem.list, \ + .prev = &sem.list \ + } \ + } + mstime_t sem_down(struct semaphore *, mstime_t); void sem_up(struct semaphore *); void sem_init(struct semaphore *, int); |