diff options
Diffstat (limited to 'misc/sys/file.h')
-rw-r--r-- | misc/sys/file.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/misc/sys/file.h b/misc/sys/file.h index 3b00dc4b25..4c3e3c6698 100644 --- a/misc/sys/file.h +++ b/misc/sys/file.h @@ -40,6 +40,7 @@ __BEGIN_DECLS #define LOCK_SH 1 /* Shared lock. */ #define LOCK_EX 2 /* Exclusive lock. */ #define LOCK_UN 8 /* Unlock. */ +#define __LOCK_ATOMIC 16 /* Atomic update. */ /* Can be OR'd in to one of the above. */ #define LOCK_NB 4 /* Don't block when locking. */ |