fixes nanomsg#1586 Undefined reference to nni_atomic_swap & nni_atomi…

…c_cas(Built by gcc 4.8.5 ). (nanomsg#1587)
unspecd · May 30, 2022 · c6d2d1f · c6d2d1f
1 parent 722bf46
commit c6d2d1f
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/src/platform/posix/posix_atomic.c b/src/platform/posix/posix_atomic.c
@@ -284,6 +284,12 @@ nni_atomic_cas64(nni_atomic_u64 *v, uint64_t comp, uint64_t new)
 	    &v->v, &comp, new, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST));
 }
 
+int
+nni_atomic_swap(nni_atomic_int *v, int u)
+{
+	return (__atomic_exchange_n(&v->v, u, __ATOMIC_SEQ_CST));
+}
+
 void
 nni_atomic_init(nni_atomic_int *v)
 {
@@ -331,6 +337,13 @@ nni_atomic_dec_nv(nni_atomic_int *v)
 	return (__atomic_sub_fetch(&v->v, 1, __ATOMIC_SEQ_CST));
 }
 
+bool
+nni_atomic_cas(nni_atomic_int *v, int comp, int new)
+{
+	return (__atomic_compare_exchange_n(
+	    &v->v, &comp, new, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST));
+}
+
 void *
 nni_atomic_get_ptr(nni_atomic_ptr *v)
 {