util/atomic: Add a _return variant of p_atomic_add

Reviewed-by: Ivan Briano <ivan.briano@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

diff --git a/src/util/u_atomic.h b/src/util/u_atomic.h
index 57c04ccb2ea841dcd330ab6aee8f4d8e32d3ad89..45e8e2e018837bdbc1f49bb8c2f750022570e59f 100644 (file)
--- a/src/util/u_atomic.h
+++ b/src/util/u_atomic.h
@@ -48,6 +48,7 @@
 #define p_atomic_add(v, i) (void) __atomic_add_fetch((v), (i), __ATOMIC_ACQ_REL)
 #define p_atomic_inc_return(v) __atomic_add_fetch((v), 1, __ATOMIC_ACQ_REL)
 #define p_atomic_dec_return(v) __atomic_sub_fetch((v), 1, __ATOMIC_ACQ_REL)
+#define p_atomic_add_return(v, i) __atomic_add_fetch((v), (i), __ATOMIC_ACQ_REL)
 #define p_atomic_xchg(v, i) __atomic_exchange_n((v), (i), __ATOMIC_ACQ_REL)
 #define PIPE_NATIVE_ATOMIC_XCHG
 
@@ -61,6 +62,7 @@
 #define p_atomic_add(v, i) (void) __sync_add_and_fetch((v), (i))
 #define p_atomic_inc_return(v) __sync_add_and_fetch((v), 1)
 #define p_atomic_dec_return(v) __sync_sub_and_fetch((v), 1)
+#define p_atomic_add_return(v, i) __sync_add_and_fetch((v), (i))
 
 #endif
 
@@ -87,9 +89,10 @@
 #define p_atomic_dec_zero(_v) (p_atomic_dec_return(_v) == 0)
 #define p_atomic_inc(_v) ((void) p_atomic_inc_return(_v))
 #define p_atomic_dec(_v) ((void) p_atomic_dec_return(_v))
-#define p_atomic_add(_v, _i) (*(_v) = *(_v) + (_i))
+#define p_atomic_add(_v, _i) ((void) p_atomic_add_return((_v), (_i))
 #define p_atomic_inc_return(_v) (++(*(_v)))
 #define p_atomic_dec_return(_v) (--(*(_v)))
+#define p_atomic_add(_v, _i) (*(_v) = *(_v) + (_i))
 #define p_atomic_cmpxchg(_v, _old, _new) (*(_v) == (_old) ? (*(_v) = (_new), (_old)) : *(_v))
 
 #endif
@@ -142,7 +145,10 @@
    sizeof *(_v) == sizeof(__int64) ? InterlockedDecrement64 ((__int64 *)(_v)) : \
                                      (assert(!"should not get here"), 0))
 
-#define p_atomic_add(_v, _i) (\
+#define p_atomic_add(_v, _i) \
+   ((void) p_atomic_add_return((_v), (_i))
+
+#define p_atomic_add_return(_v, _i) (\
    sizeof *(_v) == sizeof(char)    ? _InterlockedExchangeAdd8 ((char *)   (_v), (_i)) : \
    sizeof *(_v) == sizeof(short)   ? _InterlockedExchangeAdd16((short *)  (_v), (_i)) : \
    sizeof *(_v) == sizeof(long)    ? _InterlockedExchangeAdd  ((long *)   (_v), (_i)) : \
@@ -210,6 +216,13 @@
    sizeof(*v) == sizeof(uint64_t) ? atomic_add_64((uint64_t *)(v), (i)) : \
                                     (assert(!"should not get here"), 0))
 
+#define p_atomic_add_return(v, i) (void) ( \
+   sizeof(*v) == sizeof(uint8_t)  ? atomic_add_8_nv ((uint8_t  *)(v), (i)) : \
+   sizeof(*v) == sizeof(uint16_t) ? atomic_add_16_nv((uint16_t *)(v), (i)) : \
+   sizeof(*v) == sizeof(uint32_t) ? atomic_add_32_nv((uint32_t *)(v), (i)) : \
+   sizeof(*v) == sizeof(uint64_t) ? atomic_add_64_nv((uint64_t *)(v), (i)) : \
+                                    (assert(!"should not get here"), 0))
+
 #define p_atomic_cmpxchg(v, old, _new) (__typeof(*v))( \
    sizeof(*v) == sizeof(uint8_t)  ? atomic_cas_8 ((uint8_t  *)(v), (uint8_t )(old), (uint8_t )(_new)) : \
    sizeof(*v) == sizeof(uint16_t) ? atomic_cas_16((uint16_t *)(v), (uint16_t)(old), (uint16_t)(_new)) : \