lvfulong
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
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#ifndef _JS_ARRAYBUFFER_H_
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#define _JS_ARRAYBUFFER_H_
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#include <v8.h>
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#include <vector>
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/*
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如果有c这边的ArrayBufferView引用这个ArrayBuffer的话，需要增加引用计数，不能直接删除
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*/
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namespace laya{
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//这个要在v8线程外分配和释放，因为v8析构的时候会调用这个对象提供的 Free 接口
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class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
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public:
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ArrayBufferAllocator();
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~ArrayBufferAllocator();
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virtual void* Allocate(size_t length) ;
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virtual void* AllocateUninitialized(size_t length);
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virtual void Free(void* data, size_t length);
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//这个函数没有意义，v8本身会都释放掉 Heap::FreeDeadArrayBuffers
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//void FreeAllAlive();//释放所有的还没有释放的ArrayBuffer
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static ArrayBufferAllocator* getInstance();
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//int _testGetID(void* pdata);
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//int getAliveBufferNum() {
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// return m_vAliveBuffer.size();
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//}
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protected:
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//std::vector<char*> m_vAliveBuffer;
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};
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v8::Local<v8::ArrayBuffer> createJSAB(char* pData, int len);
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v8::Local<v8::ArrayBuffer> createJSABAligned(char* pData, int len);
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bool extractJSAB(v8::Local<v8::Value> ab, char*& data, int& len);
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}
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#endif
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