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48 lines
1.8 KiB
48 lines
1.8 KiB
4 months ago
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import { MESSAGE_TYPE_RPC_TRANSFERABLE } from './message-types.js';
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import { getGlobalThis } from './util.js';
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/**
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* Setup worker methods which return transferables. This function should be executed on the worker thread.
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* @param methods an object whose key is method name and whose value is options how to pick transferables from method result
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*/
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export function setupTransferableMethodsOnWorker(methods) {
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const globals = getGlobalThis();
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globals.addEventListener('message', e => {
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const { type, method, id, params } = e.data;
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let opts;
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let p;
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if (type === MESSAGE_TYPE_RPC_TRANSFERABLE && method) {
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if ((opts = methods[method])) {
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p = Promise.resolve().then(() => opts.fn(...params));
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}
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else {
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p = Promise.reject('No such method');
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}
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p.then(result => {
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globals.postMessage({ type: MESSAGE_TYPE_RPC_TRANSFERABLE, id, result }, opts.pickTransferablesFromResult ? opts.pickTransferablesFromResult(result) : []);
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}).catch(e => {
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let message;
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try {
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message = e.message.toString();
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}
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catch (ex) {
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message = null;
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}
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const error = { message };
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if (e.stack) {
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error.stack = e.stack;
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error.name = e.name;
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}
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if (e.status) {
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error.status = e.status;
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error.responseJson = e.responseJson;
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}
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globals.postMessage({
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type: MESSAGE_TYPE_RPC_TRANSFERABLE,
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id,
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error
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});
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});
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}
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});
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}
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//# sourceMappingURL=on-worker.js.map
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