1 files changed, 41 insertions, 0 deletions
diff --git a/LoopbackApp/app/src/main/cpp/audio_utils/atomic.c b/LoopbackApp/app/src/main/cpp/audio_utils/atomic.c
new file mode 100644
index 0000000..e1f1e87
--- /dev/null
+++ b/LoopbackApp/app/src/main/cpp/audio_utils/atomic.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed 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 "atomic.h"
+
+#include <stdatomic.h>
+#include <stdbool.h>
+
+int32_t android_atomic_acquire_load(volatile const int32_t* addr) {
+    volatile atomic_int_least32_t* a = (volatile atomic_int_least32_t*) addr;
+    return atomic_load_explicit(a, memory_order_acquire);
+}
+
+void android_atomic_release_store(int32_t value, volatile int32_t* addr) {
+    volatile atomic_int_least32_t* a = (volatile atomic_int_least32_t*) addr;
+    atomic_store_explicit(a, value, memory_order_release);
+}
+
+int32_t android_atomic_exchange(int32_t value, volatile const int32_t* addr) {
+    volatile atomic_int_least32_t* a = (volatile atomic_int_least32_t*) addr;
+    return atomic_exchange(a, value);
+}
+
+bool android_atomic_compare_exchange(int32_t* expect, int32_t desire,
+        volatile const int32_t* addr) {
+    volatile atomic_int_least32_t* a = (volatile atomic_int_least32_t*) addr;
+    return atomic_compare_exchange_weak(a, expect, desire);
+}