diff options
Diffstat (limited to 'include/atomic.h')
| -rw-r--r-- | include/atomic.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/include/atomic.h b/include/atomic.h index 092b6e00a3..8a23f6ee9e 100644 --- a/include/atomic.h +++ b/include/atomic.h @@ -1,5 +1,5 @@ /* Internal macros for atomic operations for GNU C Library. - Copyright (C) 2002, 2003 Free Software Foundation, Inc. + Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -151,6 +151,11 @@ #endif +#ifndef atomic_increment_val +# define atomic_increment_val(mem) (atomic_exchange_and_add ((mem), 1) + 1) +#endif + + /* Add one to *MEM and return true iff it's now zero. */ #ifndef atomic_increment_and_test # define atomic_increment_and_test(mem) \ @@ -163,6 +168,11 @@ #endif +#ifndef atomic_decrement_val +# define atomic_decrement_val(mem) (atomic_exchange_and_add ((mem), -1) - 1) +#endif + + /* Subtract 1 from *MEM and return true iff it's now zero. */ #ifndef atomic_decrement_and_test # define atomic_decrement_and_test(mem) \ @@ -243,4 +253,9 @@ # define atomic_write_barrier() atomic_full_barrier () #endif + +#ifndef atomic_delay +# define atomic_delay() do { /* nothing */ } while (0) +#endif + #endif /* atomic.h */ |