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'use strict';
// This file contains process bootstrappers that can only be
// run in the worker thread.
const {
createWorkerStdio
} = require('internal/worker/io');
const {
codes: { ERR_WORKER_UNSUPPORTED_OPERATION }
} = require('internal/errors');
let workerStdio;
function lazyWorkerStdio() {
if (!workerStdio) workerStdio = createWorkerStdio();
return workerStdio;
}
function createStdioGetters() {
return {
getStdout() { return lazyWorkerStdio().stdout; },
getStderr() { return lazyWorkerStdio().stderr; },
getStdin() { return lazyWorkerStdio().stdin; }
};
}
// The execution of this function itself should not cause any side effects.
function wrapProcessMethods(binding) {
function umask(mask) {
// process.umask() is a read-only operation in workers.
if (mask !== undefined) {
throw new ERR_WORKER_UNSUPPORTED_OPERATION('Setting process.umask()');
}
return binding.umask(mask);
}
return { umask };
}
function unavailable(name) {
function unavailableInWorker() {
throw new ERR_WORKER_UNSUPPORTED_OPERATION(name);
}
unavailableInWorker.disabled = true;
return unavailableInWorker;
}
module.exports = {
createStdioGetters,
unavailable,
wrapProcessMethods
};