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$NetBSD: patch-common_umutex.h,v 1.2 2019/04/03 00:13:00 ryoon Exp $
* Add NetBSD MI atomic_ops(3) support
--- common/umutex.h.orig 2019-03-27 18:47:14.000000000 +0000
+++ common/umutex.h
@@ -60,6 +60,31 @@ template struct std::atomic<int32_t>;
U_NAMESPACE_BEGIN
+#if U_HAVE_NETBSD_ATOMIC_OPS
+/*
+ * NetBSD MI atomic_ops(3)
+ */
+#include <sys/atomic.h>
+typedef volatile uint32_t u_atomic_int32_t;
+#define ATOMIC_INT32_T_INITIALIZER(val) val
+
+inline int32_t umtx_loadAcquire(u_atomic_int32_t &var) {
+ return atomic_cas_32(&var, 0, 0);
+}
+
+inline void umtx_storeRelease(u_atomic_int32_t &var, int32_t val) {
+ atomic_swap_32(&var, val);
+}
+
+inline int32_t umtx_atomic_inc(u_atomic_int32_t *p) {
+ return atomic_inc_32_nv(p);
+}
+
+inline int32_t umtx_atomic_dec(u_atomic_int32_t *p) {
+ return atomic_dec_32_nv(p);
+}
+#else
+
/****************************************************************************
*
* Low Level Atomic Operations, ICU wrappers for.
@@ -84,7 +109,7 @@ inline int32_t umtx_atomic_inc(u_atomic_
inline int32_t umtx_atomic_dec(u_atomic_int32_t *var) {
return var->fetch_sub(1) - 1;
}
-
+#endif
/*************************************************************************************************
*
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