diff --git a/src/ddsrt/include/dds/ddsrt/atomics/arm.h b/src/ddsrt/include/dds/ddsrt/atomics/arm.h
index 863e483..fd43723 100644
--- a/src/ddsrt/include/dds/ddsrt/atomics/arm.h
+++ b/src/ddsrt/include/dds/ddsrt/atomics/arm.h
@@ -85,6 +85,9 @@ inline void *ddsrt_atomic_addvoidp_nv (volatile ddsrt_atomic_voidp_t *x, ptrdiff
 inline void ddsrt_atomic_add32 (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
     (void) ddsrt_atomic_add32_nv (x, v);
 }
+inline uint32_t ddsrt_atomic_add32_ov (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
+    return ddsrt_atomic_add32_nv (x, v) - v;
+}
 inline void ddsrt_atomic_addptr (volatile ddsrt_atomic_uintptr_t *x, uintptr_t v) {
     (void) ddsrt_atomic_addptr_nv (x, v);
 }
@@ -115,6 +118,9 @@ inline void ddsrt_atomic_subvoidp (volatile ddsrt_atomic_voidp_t *x, ptrdiff_t v
 
 /* INC */
 
+inline uint32_t ddsrt_atomic_inc32_ov (volatile ddsrt_atomic_uint32_t *x) {
+    return ddsrt_atomic_add32_nv (x, 1) - 1;
+}
 inline uint32_t ddsrt_atomic_inc32_nv (volatile ddsrt_atomic_uint32_t *x) {
     return ddsrt_atomic_add32_nv (x, 1);
 }
@@ -130,6 +136,9 @@ inline void ddsrt_atomic_incptr (volatile ddsrt_atomic_uintptr_t *x) {
 
 /* DEC */
 
+inline uint32_t ddsrt_atomic_dec32_ov (volatile ddsrt_atomic_uint32_t *x) {
+    return ddsrt_atomic_sub32_nv (x, 1) + 1;
+}
 inline uint32_t ddsrt_atomic_dec32_nv (volatile ddsrt_atomic_uint32_t *x) {
     return ddsrt_atomic_sub32_nv (x, 1);
 }
diff --git a/src/ddsrt/include/dds/ddsrt/atomics/gcc.h b/src/ddsrt/include/dds/ddsrt/atomics/gcc.h
index 59e05a7..a005da2 100644
--- a/src/ddsrt/include/dds/ddsrt/atomics/gcc.h
+++ b/src/ddsrt/include/dds/ddsrt/atomics/gcc.h
@@ -85,6 +85,9 @@ inline void ddsrt_atomic_inc64 (volatile ddsrt_atomic_uint64_t *x) {
 inline void ddsrt_atomic_incptr (volatile ddsrt_atomic_uintptr_t *x) {
   __sync_fetch_and_add (&x->v, 1);
 }
+inline uint32_t ddsrt_atomic_inc32_ov (volatile ddsrt_atomic_uint32_t *x) {
+  return __sync_fetch_and_add (&x->v, 1);
+}
 inline uint32_t ddsrt_atomic_inc32_nv (volatile ddsrt_atomic_uint32_t *x) {
   return __sync_add_and_fetch (&x->v, 1);
 }
@@ -149,6 +152,9 @@ inline void ddsrt_atomic_addptr (volatile ddsrt_atomic_uintptr_t *x, uintptr_t v
 inline void ddsrt_atomic_addvoidp (volatile ddsrt_atomic_voidp_t *x, ptrdiff_t v) {
   ddsrt_atomic_addptr ((volatile ddsrt_atomic_uintptr_t *) x, (uintptr_t) v);
 }
+inline uint32_t ddsrt_atomic_add32_ov (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
+  return __sync_fetch_and_add (&x->v, v);
+}
 inline uint32_t ddsrt_atomic_add32_nv (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
   return __sync_add_and_fetch (&x->v, v);
 }
@@ -180,6 +186,9 @@ inline void ddsrt_atomic_subptr (volatile ddsrt_atomic_uintptr_t *x, uintptr_t v
 inline void ddsrt_atomic_subvoidp (volatile ddsrt_atomic_voidp_t *x, ptrdiff_t v) {
   ddsrt_atomic_subptr ((volatile ddsrt_atomic_uintptr_t *) x, (uintptr_t) v);
 }
+inline uint32_t ddsrt_atomic_sub32_ov (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
+  return __sync_fetch_and_sub (&x->v, v);
+}
 inline uint32_t ddsrt_atomic_sub32_nv (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
   return __sync_sub_and_fetch (&x->v, v);
 }
diff --git a/src/ddsrt/include/dds/ddsrt/atomics/msvc.h b/src/ddsrt/include/dds/ddsrt/atomics/msvc.h
index f7f2218..c30f5f0 100644
--- a/src/ddsrt/include/dds/ddsrt/atomics/msvc.h
+++ b/src/ddsrt/include/dds/ddsrt/atomics/msvc.h
@@ -74,6 +74,9 @@ inline void ddsrt_atomic_inc64 (volatile ddsrt_atomic_uint64_t *x) {
 inline void ddsrt_atomic_incptr (volatile ddsrt_atomic_uintptr_t *x) {
   DDSRT_ATOMIC_PTROP (InterlockedIncrement) (&x->v);
 }
+inline uint32_t ddsrt_atomic_inc32_ov (volatile ddsrt_atomic_uint32_t *x) {
+  return InterlockedIncrement (&x->v) - 1;
+}
 inline uint32_t ddsrt_atomic_inc32_nv (volatile ddsrt_atomic_uint32_t *x) {
   return InterlockedIncrement (&x->v);
 }
@@ -138,6 +141,9 @@ inline void ddsrt_atomic_addptr (volatile ddsrt_atomic_uintptr_t *x, uintptr_t v
 inline void ddsrt_atomic_addvoidp (volatile ddsrt_atomic_voidp_t *x, ptrdiff_t v) {
   ddsrt_atomic_addptr ((volatile ddsrt_atomic_uintptr_t *) x, (uintptr_t) v);
 }
+inline uint32_t ddsrt_atomic_add32_ov (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
+  return InterlockedExchangeAdd (&x->v, v);
+}
 inline uint32_t ddsrt_atomic_add32_nv (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
   return InterlockedExchangeAdd (&x->v, v) + v;
 }
@@ -178,6 +184,12 @@ inline void ddsrt_atomic_subptr (volatile ddsrt_atomic_uintptr_t *x, uintptr_t v
 inline void ddsrt_atomic_subvoidp (volatile ddsrt_atomic_voidp_t *x, ptrdiff_t v) {
   ddsrt_atomic_subptr ((volatile ddsrt_atomic_uintptr_t *) x, (uintptr_t) v);
 }
+inline uint32_t ddsrt_atomic_sub32_ov (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
+  /* disable unary minus applied to unsigned type, result still unsigned */
+  DDSRT_WARNING_MSVC_OFF(4146)
+  return InterlockedExchangeAdd (&x->v, -v);
+  DDSRT_WARNING_MSVC_ON(4146)
+}
 inline uint32_t ddsrt_atomic_sub32_nv (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
   /* disable unary minus applied to unsigned type, result still unsigned */
   DDSRT_WARNING_MSVC_OFF(4146)
diff --git a/src/ddsrt/include/dds/ddsrt/atomics/sun.h b/src/ddsrt/include/dds/ddsrt/atomics/sun.h
index 74a7469..f9f1434 100644
--- a/src/ddsrt/include/dds/ddsrt/atomics/sun.h
+++ b/src/ddsrt/include/dds/ddsrt/atomics/sun.h
@@ -40,6 +40,11 @@ inline void ddsrt_atomic_inc64 (volatile ddsrt_atomic_uint64_t *x) {
 inline void ddsrt_atomic_incptr (volatile ddsrt_atomic_uintptr_t *x) {
   atomic_inc_ulong (&x->v);
 }
+inline uint32_t ddsrt_atomic_inc32_ov (volatile ddsrt_atomic_uint32_t *x) {
+  uint32_t oldval, newval;
+  do { oldval = x->v; newval = oldval + 1; } while (atomic_cas_32 (&x->v, oldval, newval) != oldval);
+  return oldval;
+}
 inline uint32_t ddsrt_atomic_inc32_nv (volatile ddsrt_atomic_uint32_t *x) {
   return atomic_inc_32_nv (&x->v);
 }
@@ -100,6 +105,9 @@ inline void ddsrt_atomic_addptr (volatile ddsrt_atomic_uintptr_t *x, uintptr_t v
 inline void ddsrt_atomic_addvoidp (volatile ddsrt_atomic_voidp_t *x, ptrdiff_t v) {
   atomic_add_ptr (&x->v, v);
 }
+inline uint32_t ddsrt_atomic_add32_ov (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
+  return atomic_add_32_nv (&x->v, v) - v;
+}
 inline uint32_t ddsrt_atomic_add32_nv (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
   return atomic_add_32_nv (&x->v, v);
 }
@@ -127,6 +135,9 @@ inline void ddsrt_atomic_subptr (volatile ddsrt_atomic_uintptr_t *x, uintptr_t v
 inline void ddsrt_atomic_subvoidp (volatile ddsrt_atomic_voidp_t *x, ptrdiff_t v) {
   atomic_add_ptr (&x->v, -v);
 }
+inline uint32_t ddsrt_atomic_sub32_ov (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
+  return atomic_add_32_nv (&x->v, -v) + v;
+}
 inline uint32_t ddsrt_atomic_sub32_nv (volatile ddsrt_atomic_uint32_t *x, uint32_t v) {
   return atomic_add_32_nv (&x->v, -v);
 }
diff --git a/src/ddsrt/src/atomics.c b/src/ddsrt/src/atomics.c
index 5919a40..a23113c 100644
--- a/src/ddsrt/src/atomics.c
+++ b/src/ddsrt/src/atomics.c
@@ -30,6 +30,7 @@ extern inline void ddsrt_atomic_inc32 (volatile ddsrt_atomic_uint32_t *x);
 extern inline void ddsrt_atomic_inc64 (volatile ddsrt_atomic_uint64_t *x);
 #endif
 extern inline void ddsrt_atomic_incptr (volatile ddsrt_atomic_uintptr_t *x);
+extern inline uint32_t ddsrt_atomic_inc32_ov (volatile ddsrt_atomic_uint32_t *x);
 extern inline uint32_t ddsrt_atomic_inc32_nv (volatile ddsrt_atomic_uint32_t *x);
 #if DDSRT_HAVE_ATOMIC64
 extern inline uint64_t ddsrt_atomic_inc64_nv (volatile ddsrt_atomic_uint64_t *x);
@@ -58,6 +59,7 @@ extern inline void ddsrt_atomic_add64 (volatile ddsrt_atomic_uint64_t *x, uint64
 #endif
 extern inline void ddsrt_atomic_addptr (volatile ddsrt_atomic_uintptr_t *x, uintptr_t v);
 extern inline void ddsrt_atomic_addvoidp (volatile ddsrt_atomic_voidp_t *x, ptrdiff_t v);
+extern inline uint32_t ddsrt_atomic_add32_ov (volatile ddsrt_atomic_uint32_t *x, uint32_t v);
 extern inline uint32_t ddsrt_atomic_add32_nv (volatile ddsrt_atomic_uint32_t *x, uint32_t v);
 #if DDSRT_HAVE_ATOMIC64
 extern inline uint64_t ddsrt_atomic_add64_nv (volatile ddsrt_atomic_uint64_t *x, uint64_t v);
@@ -71,6 +73,7 @@ extern inline void ddsrt_atomic_sub64 (volatile ddsrt_atomic_uint64_t *x, uint64
 #endif
 extern inline void ddsrt_atomic_subptr (volatile ddsrt_atomic_uintptr_t *x, uintptr_t v);
 extern inline void ddsrt_atomic_subvoidp (volatile ddsrt_atomic_voidp_t *x, ptrdiff_t v);
+extern inline uint32_t ddsrt_atomic_sub32_ov (volatile ddsrt_atomic_uint32_t *x, uint32_t v);
 extern inline uint32_t ddsrt_atomic_sub32_nv (volatile ddsrt_atomic_uint32_t *x, uint32_t v);
 #if DDSRT_HAVE_ATOMIC64
 extern inline uint64_t ddsrt_atomic_sub64_nv (volatile ddsrt_atomic_uint64_t *x, uint64_t v);