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-rw-r--r--runtime/atomic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/runtime/atomic.h b/runtime/atomic.h
index 10dbac90..fdf64214 100644
--- a/runtime/atomic.h
+++ b/runtime/atomic.h
@@ -42,6 +42,7 @@
*/
#ifdef HAVE_ATOMIC_BUILTINS
# define ATOMIC_INC(data) ((void) __sync_fetch_and_add(&(data), 1))
+# define ATOMIC_DEC(data) ((void) __sync_sub_and_fetch(&(data), 1))
# define ATOMIC_DEC_AND_FETCH(data) __sync_sub_and_fetch(&(data), 1)
# define ATOMIC_FETCH_32BIT(data) ((unsigned) __sync_fetch_and_and(&(data), 0xffffffff))
# define ATOMIC_STORE_1_TO_32BIT(data) __sync_lock_test_and_set(&(data), 1)
@@ -55,6 +56,7 @@
*/
# warning "atomic builtins not available, using nul operations - rsyslogd will probably be racy!"
# define ATOMIC_INC(data) (++(data))
+# define ATOMIC_DEC(data) (--(data))
# define ATOMIC_DEC_AND_FETCH(data) (--(data))
# define ATOMIC_FETCH_32BIT(data) (data)
# define ATOMIC_STORE_1_TO_32BIT(data) (data) = 1