summaryrefslogtreecommitdiffstats
path: root/lib/isc/include/isc/atomic.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 07:24:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 07:24:22 +0000
commit45d6379135504814ab723b57f0eb8be23393a51d (patch)
treed4f2ec4acca824a8446387a758b0ce4238a4dffa /lib/isc/include/isc/atomic.h
parentInitial commit. (diff)
downloadbind9-45d6379135504814ab723b57f0eb8be23393a51d.tar.xz
bind9-45d6379135504814ab723b57f0eb8be23393a51d.zip
Adding upstream version 1:9.16.44.upstream/1%9.16.44
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/isc/include/isc/atomic.h')
-rw-r--r--lib/isc/include/isc/atomic.h73
1 files changed, 73 insertions, 0 deletions
diff --git a/lib/isc/include/isc/atomic.h b/lib/isc/include/isc/atomic.h
new file mode 100644
index 0000000..fd29202
--- /dev/null
+++ b/lib/isc/include/isc/atomic.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+#pragma once
+
+#if HAVE_STDATOMIC_H
+#include <stdatomic.h>
+#else /* if HAVE_STDATOMIC_H */
+#include <isc/stdatomic.h>
+#endif /* if HAVE_STDATOMIC_H */
+
+/*
+ * We define a few additional macros to make things easier
+ */
+
+/* Relaxed Memory Ordering */
+
+#define atomic_store_relaxed(o, v) \
+ atomic_store_explicit((o), (v), memory_order_relaxed)
+#define atomic_load_relaxed(o) atomic_load_explicit((o), memory_order_relaxed)
+#define atomic_fetch_add_relaxed(o, v) \
+ atomic_fetch_add_explicit((o), (v), memory_order_relaxed)
+#define atomic_fetch_sub_relaxed(o, v) \
+ atomic_fetch_sub_explicit((o), (v), memory_order_relaxed)
+#define atomic_fetch_or_relaxed(o, v) \
+ atomic_fetch_or_explicit((o), (v), memory_order_relaxed)
+#define atomic_fetch_and_relaxed(o, v) \
+ atomic_fetch_and_explicit((o), (v), memory_order_relaxed)
+#define atomic_exchange_relaxed(o, v) \
+ atomic_exchange_explicit((o), (v), memory_order_relaxed)
+#define atomic_compare_exchange_weak_relaxed(o, e, d) \
+ atomic_compare_exchange_weak_explicit( \
+ (o), (e), (d), memory_order_relaxed, memory_order_relaxed)
+#define atomic_compare_exchange_strong_relaxed(o, e, d) \
+ atomic_compare_exchange_strong_explicit( \
+ (o), (e), (d), memory_order_relaxed, memory_order_relaxed)
+#define atomic_compare_exchange_strong_acq_rel(o, e, d) \
+ atomic_compare_exchange_strong_explicit( \
+ (o), (e), (d), memory_order_acq_rel, memory_order_acquire)
+
+/* Acquire-Release Memory Ordering */
+
+#define atomic_store_release(o, v) \
+ atomic_store_explicit((o), (v), memory_order_release)
+#define atomic_load_acquire(o) atomic_load_explicit((o), memory_order_acquire)
+#define atomic_fetch_add_release(o, v) \
+ atomic_fetch_add_explicit((o), (v), memory_order_release)
+#define atomic_fetch_sub_release(o, v) \
+ atomic_fetch_sub_explicit((o), (v), memory_order_release)
+#define atomic_fetch_and_release(o, v) \
+ atomic_fetch_and_explicit((o), (v), memory_order_release)
+#define atomic_fetch_or_release(o, v) \
+ atomic_fetch_or_explicit((o), (v), memory_order_release)
+#define atomic_exchange_acq_rel(o, v) \
+ atomic_exchange_explicit((o), (v), memory_order_acq_rel)
+#define atomic_fetch_sub_acq_rel(o, v) \
+ atomic_fetch_sub_explicit((o), (v), memory_order_acq_rel)
+#define atomic_compare_exchange_weak_acq_rel(o, e, d) \
+ atomic_compare_exchange_weak_explicit( \
+ (o), (e), (d), memory_order_acq_rel, memory_order_acquire)
+#define atomic_compare_exchange_strong_acq_rel(o, e, d) \
+ atomic_compare_exchange_strong_explicit( \
+ (o), (e), (d), memory_order_acq_rel, memory_order_acquire)