| <!DOCTYPE HTML><!-- webkit-test-runner [ jscOptions=--useSharedArrayBuffer=true ] --> |
| <html> |
| <head> |
| <title>Growable SharedArrayBuffers typed array should be serializable</title> |
| <script src="../../resources/js-test-pre.js"></script> |
| </head> |
| <body> |
| <script> |
| description("Growable SharedArrayBuffers typed array should be serializable"); |
| window.jsTestIsAsync = true; |
| |
| var arrayBuffer = new SharedArrayBuffer(36, { maxByteLength: 128 }); |
| var int32AutoArray = new Int32Array(arrayBuffer, 4); |
| |
| shouldBeTrue(`arrayBuffer.growable`); |
| shouldBe(`arrayBuffer.byteLength`, `36`); |
| shouldBe(`arrayBuffer.maxByteLength`, `128`); |
| shouldBe(`int32AutoArray.length`, `8`); |
| shouldBe(`int32AutoArray.byteOffset`, `4`); |
| |
| async function createWorker(script) |
| { |
| script += "self.postMessage('ready');"; |
| const blob = new Blob([script], { type: 'text/javascript' }); |
| const url = URL.createObjectURL(blob); |
| const worker = new Worker(URL.createObjectURL(blob)); |
| await new Promise(resolve => worker.onmessage = () => { |
| resolve(); |
| }); |
| URL.revokeObjectURL(url); |
| return worker; |
| } |
| |
| (async () => { |
| const worker = await createWorker(` |
| self.onmessage = (event) => { |
| let data = event.data; |
| self.postMessage(data); |
| } |
| `); |
| |
| const promise = new Promise(resolve => worker.onmessage = event => resolve(event.data)); |
| worker.postMessage(int32AutoArray); |
| |
| globalThis.result = await promise; |
| shouldBeTrue(`result.buffer.growable`); |
| shouldBe(`result.buffer.byteLength`, `36`); |
| shouldBe(`result.buffer.maxByteLength`, `128`); |
| shouldBe(`result.length`, `8`); |
| shouldBe(`result.byteOffset`, `4`); |
| result[0] = 42; |
| shouldBe(`int32AutoArray[0]`, `42`); |
| arrayBuffer.grow(128); |
| shouldBe(`result.buffer.byteLength`, `128`); |
| shouldBe(`result.buffer.maxByteLength`, `128`); |
| shouldBe(`int32AutoArray.length`, `31`); |
| shouldBe(`int32AutoArray.byteOffset`, `4`); |
| shouldBe(`result.length`, `31`); |
| shouldBe(`result.byteOffset`, `4`); |
| finishJSTest(); |
| })(); |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
