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"use strict";
self.getViewValue = (view, index) => {
if(view instanceof DataView) {
return view.getInt8(index);
}
return view[index];
};
self.setViewValue = (view, index, value) => {
if(view instanceof DataView) {
view.setInt8(index, value);
} else {
view[index] = value;
}
};
self.maybeBigInt = (view, value) => {
if (view.constructor.name === "BigInt64Array" || view.constructor.name === "BigUint64Array") {
return BigInt(value);
}
return value;
};
self.testSharingViaIncrementerScript = (t, whereToListen, whereToListenLabel, whereToSend, whereToSendLabel, origin, type = "Int32Array") => {
return new Promise(resolve => {
const sab = new SharedArrayBuffer(8);
const view = new self[type](sab);
setViewValue(view, 0, maybeBigInt(view, 1));
whereToListen.onmessage = t.step_func(({ data }) => {
switch (data.message) {
case "initial payload received": {
assert_equals(data.value, maybeBigInt(view, 1), `The ${whereToSendLabel} must see the same value in the SharedArrayBuffer`);
break;
}
case "changed to 2": {
assert_equals(getViewValue(view, 0), maybeBigInt(view, 2), `The ${whereToListenLabel} must see changes made in the ${whereToSendLabel}`);
setViewValue(view, 0, maybeBigInt(view, 3));
whereToSend.postMessage({ message: "changed to 3" }, origin);
break;
}
case "changed to 3 received": {
assert_equals(data.value, maybeBigInt(view, 3), `The ${whereToSendLabel} must see changes made in the ${whereToListenLabel}`);
resolve();
break;
}
}
});
whereToSend.postMessage({ message: "initial payload", view }, origin);
});
};
self.setupDestinationIncrementer = (whereToListen, whereToSendBackTo, origin) => {
let view;
whereToListen.onmessage = ({ data }) => {
switch (data.message) {
case "initial payload": {
view = data.view;
whereToSendBackTo.postMessage({ message: "initial payload received", value: getViewValue(view, 0) }, origin);
setViewValue(view, 0, maybeBigInt(view, 2));
whereToSendBackTo.postMessage({ message: "changed to 2" }, origin);
break;
}
case "changed to 3": {
whereToSendBackTo.postMessage({ message: "changed to 3 received", value: getViewValue(view, 0) }, origin);
break;
}
}
};
};