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cocos/bindings/utils/BindingUtils.cpp

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+/****************************************************************************
+ Copyright (c) 2022-2023 Xiamen Yaji Software Co., Ltd.
+
+ http://www.cocos.com
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights to
+ use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ of the Software, and to permit persons to whom the Software is furnished to do so,
+ subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+****************************************************************************/
+
+#include "bindings/utils/BindingUtils.h"
+#include "bindings/jswrapper/SeApi.h"
+
+namespace cc::bindings {
+
+NativeMemorySharedToScriptActor::~NativeMemorySharedToScriptActor() {
+    destroy();
+}
+
+void NativeMemorySharedToScriptActor::initialize(void* ptr, uint32_t byteLength) {
+    CC_ASSERT_NULL(_sharedArrayBufferObject);
+    // The callback of freeing buffer is empty since the memory is managed in native,
+    // the external array buffer just holds a reference to the memory.
+    _sharedArrayBufferObject = se::Object::createExternalArrayBufferObject(ptr, byteLength, [](void* /*contents*/, size_t /*byteLength*/, void* /*userData*/) {});
+    _sharedArrayBufferObject->root();
+}
+
+void NativeMemorySharedToScriptActor::destroy() {
+    if (_sharedArrayBufferObject != nullptr) {
+        _sharedArrayBufferObject->unroot();
+        _sharedArrayBufferObject->decRef();
+        _sharedArrayBufferObject = nullptr;
+    }
+}
+
+} // namespace cc::bindings

cocos/bindings/utils/BindingUtils.h

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+/****************************************************************************
+ Copyright (c) 2022-2023 Xiamen Yaji Software Co., Ltd.
+
+ http://www.cocos.com
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights to
+ use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ of the Software, and to permit persons to whom the Software is furnished to do so,
+ subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+****************************************************************************/
+
+#pragma once
+
+#include <cstdint>
+
+#include "base/Macros.h"
+
+namespace se {
+class Object;
+}
+
+namespace cc::bindings {
+
+class NativeMemorySharedToScriptActor final {
+public:
+    NativeMemorySharedToScriptActor() = default;
+    ~NativeMemorySharedToScriptActor();
+
+    void initialize(void *ptr, uint32_t byteLength);
+    void destroy();
+
+    inline se::Object *getSharedArrayBufferObject() const { return _sharedArrayBufferObject; }
+
+private:
+    se::Object *_sharedArrayBufferObject{nullptr};
+
+    CC_DISALLOW_COPY_MOVE_ASSIGN(NativeMemorySharedToScriptActor)
+};
+
+} // namespace cc::bindings