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-rw-r--r--atomic/unix/builtins64.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/atomic/unix/builtins64.c b/atomic/unix/builtins64.c
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+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "apr_arch_atomic.h"
+
+#ifdef USE_ATOMICS_BUILTINS
+
+APR_DECLARE(apr_uint64_t) apr_atomic_read64(volatile apr_uint64_t *mem)
+{
+ return *mem;
+}
+
+APR_DECLARE(void) apr_atomic_set64(volatile apr_uint64_t *mem, apr_uint64_t val)
+{
+ *mem = val;
+}
+
+APR_DECLARE(apr_uint64_t) apr_atomic_add64(volatile apr_uint64_t *mem, apr_uint64_t val)
+{
+ return __sync_fetch_and_add(mem, val);
+}
+
+APR_DECLARE(void) apr_atomic_sub64(volatile apr_uint64_t *mem, apr_uint64_t val)
+{
+ __sync_fetch_and_sub(mem, val);
+}
+
+APR_DECLARE(apr_uint64_t) apr_atomic_inc64(volatile apr_uint64_t *mem)
+{
+ return __sync_fetch_and_add(mem, 1);
+}
+
+APR_DECLARE(int) apr_atomic_dec64(volatile apr_uint64_t *mem)
+{
+ return __sync_sub_and_fetch(mem, 1);
+}
+
+APR_DECLARE(apr_uint64_t) apr_atomic_cas64(volatile apr_uint64_t *mem, apr_uint64_t with,
+ apr_uint64_t cmp)
+{
+ return __sync_val_compare_and_swap(mem, cmp, with);
+}
+
+APR_DECLARE(apr_uint64_t) apr_atomic_xchg64(volatile apr_uint64_t *mem, apr_uint64_t val)
+{
+ __sync_synchronize();
+
+ return __sync_lock_test_and_set(mem, val);
+}
+
+#endif /* USE_ATOMICS_BUILTINS */