代码之家 › 专栏 › 技术社区 › joe

与工作人员共享SharedArray缓冲区的TypedArray视图-是否可以访问完整的SharedArray缓冲区时?

sharedarraybuffer web-worker

0

joe · 技术社区 · 2 年前

如果我创建 SharedArrayBuffer ,然后通过 TypedArray ,然后发送 类型阵列 到 Worker 通过 postMessage ,工作人员是否能够访问的完整数据 类型阵列 ?

1 回复 | 直到 2 年前

1

0

joe 2 年前

是的,整个底层缓冲区与web工作者共享:

<!-- test.html -->
<script>
  // Main thread
  const sharedBuffer = new SharedArrayBuffer(100); 
  const fullBuffer = new Uint8Array(sharedBuffer);
  fullBuffer.set([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); // Fill the start of the buffer with some data
  const partOfBuffer = new Uint8Array(sharedBuffer, 5); // Create a view that leaves off the first few numbers

  const worker = new Worker('worker.js');
  worker.postMessage(partOfBuffer);
</script>

// worker.js
onmessage = function(e) {
  const partOfBuffer = e.data;
  console.log(new Uint8Array(partOfBuffer.buffer)); // logs the full buffer data - i.e. including the first few numbers
}