From 83d0c719f837724d9e3963b078211b2242bdd2a5 Mon Sep 17 00:00:00 2001 From: "Emilio G. Cota" Date: Mon, 27 Jun 2016 15:01:54 -0400 Subject: [PATCH] atomics: add atomic_op_fetch variants MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This paves the way for upcoming work. Reviewed-by: Alex Bennée Signed-off-by: Emilio G. Cota Signed-off-by: Richard Henderson Message-Id: <1467054136-10430-9-git-send-email-cota@braap.org> --- include/qemu/atomic.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/include/qemu/atomic.h b/include/qemu/atomic.h index 3b72d935bb..a26a36bb49 100644 --- a/include/qemu/atomic.h +++ b/include/qemu/atomic.h @@ -175,6 +175,14 @@ #define atomic_fetch_or(ptr, n) __atomic_fetch_or(ptr, n, __ATOMIC_SEQ_CST) #define atomic_fetch_xor(ptr, n) __atomic_fetch_xor(ptr, n, __ATOMIC_SEQ_CST) +#define atomic_inc_fetch(ptr) __atomic_add_fetch(ptr, 1, __ATOMIC_SEQ_CST) +#define atomic_dec_fetch(ptr) __atomic_sub_fetch(ptr, 1, __ATOMIC_SEQ_CST) +#define atomic_add_fetch(ptr, n) __atomic_add_fetch(ptr, n, __ATOMIC_SEQ_CST) +#define atomic_sub_fetch(ptr, n) __atomic_sub_fetch(ptr, n, __ATOMIC_SEQ_CST) +#define atomic_and_fetch(ptr, n) __atomic_and_fetch(ptr, n, __ATOMIC_SEQ_CST) +#define atomic_or_fetch(ptr, n) __atomic_or_fetch(ptr, n, __ATOMIC_SEQ_CST) +#define atomic_xor_fetch(ptr, n) __atomic_xor_fetch(ptr, n, __ATOMIC_SEQ_CST) + /* And even shorter names that return void. */ #define atomic_inc(ptr) ((void) __atomic_fetch_add(ptr, 1, __ATOMIC_SEQ_CST)) #define atomic_dec(ptr) ((void) __atomic_fetch_sub(ptr, 1, __ATOMIC_SEQ_CST)) @@ -342,6 +350,15 @@ #define atomic_fetch_and(ptr, n) __sync_fetch_and_and(ptr, n) #define atomic_fetch_or(ptr, n) __sync_fetch_and_or(ptr, n) #define atomic_fetch_xor(ptr, n) __sync_fetch_and_xor(ptr, n) + +#define atomic_inc_fetch(ptr) __sync_add_and_fetch(ptr, 1) +#define atomic_dec_fetch(ptr) __sync_add_and_fetch(ptr, -1) +#define atomic_add_fetch(ptr, n) __sync_add_and_fetch(ptr, n) +#define atomic_sub_fetch(ptr, n) __sync_sub_and_fetch(ptr, n) +#define atomic_and_fetch(ptr, n) __sync_and_and_fetch(ptr, n) +#define atomic_or_fetch(ptr, n) __sync_or_and_fetch(ptr, n) +#define atomic_xor_fetch(ptr, n) __sync_xor_and_fetch(ptr, n) + #define atomic_cmpxchg(ptr, old, new) __sync_val_compare_and_swap(ptr, old, new) /* And even shorter names that return void. */