| <!DOCTYPE HTML><!-- webkit-test-runner [ jscOptions=--useResizableArrayBuffer=true,--useSharedArrayBuffer=true ] --> |
| <html> |
| <head> |
| <script src="../../resources/js-test.js"></script> |
| </head> |
| <body> |
| <script> |
| description("Checks that window.postMessage clones growable SharedArrayBuffers"); |
| |
| jsTestIsAsync = true; |
| |
| var sab = new SharedArrayBuffer(4, { maxByteLength: 1024 }); |
| var memory = new Int32Array(sab); |
| var otherMemory; |
| |
| window.addEventListener("message", function (event) { |
| otherMemory = event.data; |
| memory[0] = 42; |
| shouldBe("memory[0]", "42"); |
| shouldBe("otherMemory[0]", "0"); |
| otherMemory[0] = 43; |
| shouldBe("memory[0]", "42"); |
| shouldBe("otherMemory[0]", "43"); |
| shouldBe("memory.length", "1"); |
| shouldBe("otherMemory.length", "1"); |
| sab.grow(1024); |
| shouldBe("memory.length", "256"); |
| shouldBe("otherMemory.length", "1"); |
| otherMemory.buffer.resize(1024); // Cloning it as resizable ArrayBuffer. |
| shouldBe("memory.length", "256"); |
| shouldBe("otherMemory.length", "256"); |
| finishJSTest(); |
| }); |
| |
| window.postMessage(memory, "*"); |
| </script> |
| </body> |
| </html> |
