Javascript V8 ArrayBuffer来自int数组？

我已经看到了能够基于以下数据创建数组缓冲区的方法：

QByteArray data_buffer(file.readAll().data(), file.size());
v8::Handle<v8::ArrayBuffer> ab = v8::ArrayBuffer::New(args.GetIsolate(), data_buffer.size());
memcpy(ab->GetContents().Data(), data_buffer.data(), data_buffer.size());

但是，当多次运行输出时，会产生非常不可预测的结果，这些结果似乎与原始数组中的值不匹配：

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 122, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 7a 40
01>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 88, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 58 40 0
1>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 2, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 02 40 01
>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 216, 63, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b d8 3f
01>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 79, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 4f 40 0
1>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 54, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 36 40 0
1>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 159, 63, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 9f 3f
01>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 104, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 68 40
01>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 170, 63, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b aa 3f
01>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array[224，107，122，64，1]ArrayBuffer{[Uint8Contents]：，bytellength:5}
C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array[224，107，88，64，1]ArrayBuffer{[Uint8Contents]：，bytellength:5}
C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array[224，107，2，64，1]ArrayBuffer{[Uint8Contents]：，bytellength:5}
C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array[224107216,63,1]ArrayBuffer{[Uint8Contents]：，bytellength:5}
C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array[224107,79,64,1]ArrayBuffer{[Uint8Contents]：，bytellength:5}
C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array[224，107，54，64，1]ArrayBuffer{[Uint8Contents]：，bytellength:5}
C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array[224，107，159，63，1]ArrayBuffer{[Uint8Contents]：，bytellength:5}
C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array[224，107，104，64，1]ArrayBuffer{[Uint8Contents]：，bytellength:5}
C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array[224，107，170，63，1]ArrayBuffer{[Uint8Contents]：，bytellength:5}

我认为这与之前提到的“自己处理内存”有关——但我对这方面的了解还不够，也就是说：

---

< > ArrayBuffer >如何从int数组中创建C++中的一个C++，并在NoDEJS中读取那些精确的int值？< /强> < /p>我不知道随机数据的原因，但一般来说，C++中的int大小是4，而不是1字节。你应该把你的<代码> x<代码>数组声明为<代码> INT8YT T <代码>或<代码> uint 8t t <代码>。我不知道随机数据的原因，但是一般来说，C++的大小是4，而不是1字节。您应该将

x

数组声明为

int8\u t

或

uint8\u t

。

#include <node.h>
using namespace v8;

void Buf(const FunctionCallbackInfo<Value>& a) {

    Isolate* i = a.GetIsolate();
    int x[] = {6,9,8,7};

    void* temp = x;

    Local<
        ArrayBuffer
    > 
    v = 
    ArrayBuffer::New(i, temp, 5);
    a.GetReturnValue().Set(v);

}

void Initialize(Local<Object> exports) {
  NODE_SET_METHOD(exports, "buf", Buf);
}

NODE_MODULE(NODE_GYP_MODULE_NAME, Initialize)

let a = require("./addon"),
    ab = a.buf(),
    ar = new Uint8Array(ab)
console.log(
    ar, ab
);

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 122, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 7a 40
01>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 88, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 58 40 0
1>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 2, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 02 40 01
>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 216, 63, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b d8 3f
01>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 79, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 4f 40 0
1>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 54, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 36 40 0
1>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 159, 63, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 9f 3f
01>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 104, 64, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b 68 40
01>, byteLength: 5 }

C:\Users\Coby\Documents\aa\atzmus\testServer>node oy.js
Uint8Array [ 224, 107, 170, 63, 1 ] ArrayBuffer { [Uint8Contents]: <e0 6b aa 3f
01>, byteLength: 5 }