MXS-2008 Move maxscale/atomic.h to maxbase/atomic.h

maxutils/maxbase/src/atomic.cc

@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2016 MariaDB Corporation Ab
+ *
+ * Use of this software is governed by the Business Source License included
+ * in the LICENSE.TXT file and at www.mariadb.com/bsl11.
+ *
+ * Change Date: 2022-01-01
+ *
+ * On the date above, in accordance with the Business Source License, use
+ * of this software will be governed by version 2 or later of the General
+ * Public License.
+ */
+
+#include <maxbase/atomic.h>
+
+/**
+ * @file atomic.c  - Implementation of atomic operations
+ */
+
+int atomic_add(int *variable, int value)
+{
+    return __atomic_fetch_add(variable, value, __ATOMIC_SEQ_CST);
+}
+
+uint32_t atomic_add_uint32(uint32_t *variable, int32_t value)
+{
+    return __atomic_fetch_add(variable, value, __ATOMIC_SEQ_CST);
+}
+
+int64_t atomic_add_int64(int64_t *variable, int64_t value)
+{
+    return __atomic_fetch_add(variable, value, __ATOMIC_SEQ_CST);
+}
+
+uint64_t atomic_add_uint64(uint64_t *variable, int64_t value)
+{
+    return __atomic_fetch_add(variable, value, __ATOMIC_SEQ_CST);
+}
+
+int atomic_load_int(const int *variable)
+{
+    return __atomic_load_n(variable, __ATOMIC_SEQ_CST);
+}
+
+int32_t atomic_load_int32(const int32_t *variable)
+{
+    return __atomic_load_n(variable, __ATOMIC_SEQ_CST);
+}
+
+int64_t atomic_load_int64(const int64_t *variable)
+{
+    return __atomic_load_n(variable, __ATOMIC_SEQ_CST);
+}
+
+uint32_t atomic_load_uint32(const uint32_t *variable)
+{
+    return __atomic_load_n(variable, __ATOMIC_SEQ_CST);
+}
+
+uint64_t atomic_load_uint64(const uint64_t *variable)
+{
+    return __atomic_load_n(variable, __ATOMIC_SEQ_CST);
+}
+
+void* atomic_load_ptr(void * const *variable)
+{
+    return __atomic_load_n(variable, __ATOMIC_SEQ_CST);
+}
+
+void atomic_store_int(int *variable, int value)
+{
+    __atomic_store_n(variable, value, __ATOMIC_SEQ_CST);
+}
+
+void atomic_store_int32(int32_t *variable, int32_t value)
+{
+    __atomic_store_n(variable, value, __ATOMIC_SEQ_CST);
+}
+
+void atomic_store_int64(int64_t *variable, int64_t value)
+{
+    __atomic_store_n(variable, value, __ATOMIC_SEQ_CST);
+}
+
+void atomic_store_uint32(uint32_t *variable, uint32_t value)
+{
+    __atomic_store_n(variable, value, __ATOMIC_SEQ_CST);
+}
+
+void atomic_store_uint64(uint64_t *variable, uint64_t value)
+{
+    __atomic_store_n(variable, value, __ATOMIC_SEQ_CST);
+}
+
+void atomic_store_ptr(void **variable, void *value)
+{
+    __atomic_store_n(variable, value, __ATOMIC_SEQ_CST);
+}
+
+bool atomic_cas_ptr(void **variable, void** old_value, void *new_value)
+{
+    return __atomic_compare_exchange_n(variable, old_value, new_value,
+                                       false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
+}
+
+int atomic_exchange_int(int *variable, int new_value)
+{
+    return __atomic_exchange_n(variable, new_value, __ATOMIC_SEQ_CST);
+}