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List:       qemu-block
Subject:    [Qemu-block] [PATCH RFC v2 11/22] add QEMU style defines for __sync_add_and_fetch
From:       Pavel Butsykin <pbutsykin () virtuozzo ! com>
Date:       2016-08-29 17:10:10
Message-ID: 20160829171021.4902-12-pbutsykin () virtuozzo ! com
[Download RAW message or body]

Signed-off-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
---
 include/qemu/atomic.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/qemu/atomic.h b/include/qemu/atomic.h
index 7e13fca..7087d0f 100644
--- a/include/qemu/atomic.h
+++ b/include/qemu/atomic.h
@@ -152,6 +152,10 @@
     _old;                                                               \
     })
 
+/* Provide shorter names for GCC atomic builtins, return new value */
+#define atomic_inc_fetch(ptr)  __sync_add_and_fetch(ptr, 1, __ATOMIC_SEQ_CST)
+#define atomic_dec_fetch(ptr)  __sync_add_and_fetch(ptr, -1, __ATOMIC_SEQ_CST)
+
 /* Provide shorter names for GCC atomic builtins, return old value */
 #define atomic_fetch_inc(ptr)  __atomic_fetch_add(ptr, 1, __ATOMIC_SEQ_CST)
 #define atomic_fetch_dec(ptr)  __atomic_fetch_sub(ptr, 1, __ATOMIC_SEQ_CST)
@@ -346,6 +350,10 @@
 #endif
 #endif
 
+/* Provide shorter names for GCC atomic builtins, return new value */
+#define atomic_inc_fetch(ptr)  __sync_add_and_fetch(ptr, 1)
+#define atomic_dec_fetch(ptr)  __sync_add_and_fetch(ptr, -1)
+
 /* Provide shorter names for GCC atomic builtins.  */
 #define atomic_fetch_inc(ptr)  __sync_fetch_and_add(ptr, 1)
 #define atomic_fetch_dec(ptr)  __sync_fetch_and_add(ptr, -1)
-- 
2.8.3



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