3842 lines
126 KiB
JavaScript
3842 lines
126 KiB
JavaScript
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// include: shell.js
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// include: minimum_runtime_check.js
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// end include: minimum_runtime_check.js
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// The Module object: Our interface to the outside world. We import
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// and export values on it. There are various ways Module can be used:
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// 1. Not defined. We create it here
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// 2. A function parameter, function(moduleArg) => Promise<Module>
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// 3. pre-run appended it, var Module = {}; ..generated code..
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// 4. External script tag defines var Module.
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// We need to check if Module already exists (e.g. case 3 above).
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// Substitution will be replaced with actual code on later stage of the build,
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// this way Closure Compiler will not mangle it (e.g. case 4. above).
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// Note that if you want to run closure, and also to use Module
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// after the generated code, you will need to define var Module = {};
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// before the code. Then that object will be used in the code, and you
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// can continue to use Module afterwards as well.
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var Module = typeof Module != 'undefined' ? Module : {};
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// Determine the runtime environment we are in. You can customize this by
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// setting the ENVIRONMENT setting at compile time (see settings.js).
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// Attempt to auto-detect the environment
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var ENVIRONMENT_IS_WEB = !!globalThis.window;
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var ENVIRONMENT_IS_WORKER = !!globalThis.WorkerGlobalScope;
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// N.b. Electron.js environment is simultaneously a NODE-environment, but
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// also a web environment.
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var ENVIRONMENT_IS_NODE = globalThis.process?.versions?.node && globalThis.process?.type != 'renderer';
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var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
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// --pre-jses are emitted after the Module integration code, so that they can
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// refer to Module (if they choose; they can also define Module)
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var arguments_ = [];
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var thisProgram = './this.program';
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var quit_ = (status, toThrow) => {
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throw toThrow;
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};
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// In MODULARIZE mode _scriptName needs to be captured already at the very top of the page immediately when the page is parsed, so it is generated there
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// before the page load. In non-MODULARIZE modes generate it here.
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var _scriptName = globalThis.document?.currentScript?.src;
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if (typeof __filename != 'undefined') { // Node
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_scriptName = __filename;
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} else
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if (ENVIRONMENT_IS_WORKER) {
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_scriptName = self.location.href;
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}
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// `/` should be present at the end if `scriptDirectory` is not empty
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var scriptDirectory = '';
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function locateFile(path) {
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if (Module['locateFile']) {
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return Module['locateFile'](path, scriptDirectory);
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}
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return scriptDirectory + path;
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}
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// Hooks that are implemented differently in different runtime environments.
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var readAsync, readBinary;
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if (ENVIRONMENT_IS_NODE) {
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// These modules will usually be used on Node.js. Load them eagerly to avoid
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// the complexity of lazy-loading.
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var fs = require('fs');
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scriptDirectory = __dirname + '/';
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// include: node_shell_read.js
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readBinary = (filename) => {
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// We need to re-wrap `file://` strings to URLs.
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filename = isFileURI(filename) ? new URL(filename) : filename;
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var ret = fs.readFileSync(filename);
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return ret;
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};
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readAsync = async (filename, binary = true) => {
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// See the comment in the `readBinary` function.
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filename = isFileURI(filename) ? new URL(filename) : filename;
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var ret = fs.readFileSync(filename, binary ? undefined : 'utf8');
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return ret;
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};
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// end include: node_shell_read.js
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if (process.argv.length > 1) {
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thisProgram = process.argv[1].replace(/\\/g, '/');
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}
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arguments_ = process.argv.slice(2);
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// MODULARIZE will export the module in the proper place outside, we don't need to export here
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if (typeof module != 'undefined') {
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module['exports'] = Module;
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}
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quit_ = (status, toThrow) => {
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process.exitCode = status;
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throw toThrow;
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};
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} else
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// Note that this includes Node.js workers when relevant (pthreads is enabled).
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// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
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// ENVIRONMENT_IS_NODE.
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if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
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try {
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scriptDirectory = new URL('.', _scriptName).href; // includes trailing slash
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} catch {
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// Must be a `blob:` or `data:` URL (e.g. `blob:http://site.com/etc/etc`), we cannot
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// infer anything from them.
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}
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{
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// include: web_or_worker_shell_read.js
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if (ENVIRONMENT_IS_WORKER) {
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readBinary = (url) => {
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var xhr = new XMLHttpRequest();
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xhr.open('GET', url, false);
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xhr.responseType = 'arraybuffer';
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xhr.send(null);
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return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response));
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};
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}
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readAsync = async (url) => {
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// Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.
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// See https://github.com/github/fetch/pull/92#issuecomment-140665932
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// Cordova or Electron apps are typically loaded from a file:// url.
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// So use XHR on webview if URL is a file URL.
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if (isFileURI(url)) {
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return new Promise((resolve, reject) => {
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var xhr = new XMLHttpRequest();
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xhr.open('GET', url, true);
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xhr.responseType = 'arraybuffer';
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xhr.onload = () => {
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if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
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resolve(xhr.response);
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return;
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}
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reject(xhr.status);
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};
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xhr.onerror = reject;
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xhr.send(null);
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});
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}
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var response = await fetch(url, { credentials: 'same-origin' });
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if (response.ok) {
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return response.arrayBuffer();
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}
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throw new Error(response.status + ' : ' + response.url);
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};
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// end include: web_or_worker_shell_read.js
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}
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} else
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{
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}
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var out = console.log.bind(console);
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var err = console.error.bind(console);
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// end include: shell.js
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// include: preamble.js
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// === Preamble library stuff ===
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// Documentation for the public APIs defined in this file must be updated in:
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// site/source/docs/api_reference/preamble.js.rst
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// A prebuilt local version of the documentation is available at:
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// site/build/text/docs/api_reference/preamble.js.txt
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// You can also build docs locally as HTML or other formats in site/
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// An online HTML version (which may be of a different version of Emscripten)
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// is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html
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var wasmBinary;
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// Wasm globals
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//========================================
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// Runtime essentials
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//========================================
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// whether we are quitting the application. no code should run after this.
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// set in exit() and abort()
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var ABORT = false;
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// set by exit() and abort(). Passed to 'onExit' handler.
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// NOTE: This is also used as the process return code code in shell environments
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// but only when noExitRuntime is false.
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var EXITSTATUS;
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// In STRICT mode, we only define assert() when ASSERTIONS is set. i.e. we
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// don't define it at all in release modes. This matches the behaviour of
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// MINIMAL_RUNTIME.
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// TODO(sbc): Make this the default even without STRICT enabled.
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/** @type {function(*, string=)} */
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function assert(condition, text) {
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if (!condition) {
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// This build was created without ASSERTIONS defined. `assert()` should not
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// ever be called in this configuration but in case there are callers in
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// the wild leave this simple abort() implementation here for now.
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abort(text);
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}
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}
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/**
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* Indicates whether filename is delivered via file protocol (as opposed to http/https)
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* @noinline
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*/
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var isFileURI = (filename) => filename.startsWith('file://');
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// include: runtime_common.js
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// include: runtime_stack_check.js
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// end include: runtime_stack_check.js
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// include: runtime_exceptions.js
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// end include: runtime_exceptions.js
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// include: runtime_debug.js
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// end include: runtime_debug.js
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// Memory management
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var
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/** @type {!Int8Array} */
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HEAP8,
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/** @type {!Uint8Array} */
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HEAPU8,
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/** @type {!Int16Array} */
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HEAP16,
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/** @type {!Uint16Array} */
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HEAPU16,
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/** @type {!Int32Array} */
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HEAP32,
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/** @type {!Uint32Array} */
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HEAPU32,
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/** @type {!Float32Array} */
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HEAPF32,
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/** @type {!Float64Array} */
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HEAPF64;
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// BigInt64Array type is not correctly defined in closure
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var
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/** not-@type {!BigInt64Array} */
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HEAP64,
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/* BigUint64Array type is not correctly defined in closure
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/** not-@type {!BigUint64Array} */
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HEAPU64;
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var runtimeInitialized = false;
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function updateMemoryViews() {
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var b = wasmMemory.buffer;
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HEAP8 = new Int8Array(b);
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HEAP16 = new Int16Array(b);
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HEAPU8 = new Uint8Array(b);
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HEAPU16 = new Uint16Array(b);
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HEAP32 = new Int32Array(b);
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HEAPU32 = new Uint32Array(b);
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HEAPF32 = new Float32Array(b);
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HEAPF64 = new Float64Array(b);
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HEAP64 = new BigInt64Array(b);
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HEAPU64 = new BigUint64Array(b);
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}
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// include: memoryprofiler.js
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// end include: memoryprofiler.js
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// end include: runtime_common.js
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function preRun() {
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if (Module['preRun']) {
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if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];
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while (Module['preRun'].length) {
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addOnPreRun(Module['preRun'].shift());
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}
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}
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// Begin ATPRERUNS hooks
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callRuntimeCallbacks(onPreRuns);
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// End ATPRERUNS hooks
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}
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function initRuntime() {
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runtimeInitialized = true;
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// Begin ATINITS hooks
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if (!Module['noFSInit'] && !FS.initialized) FS.init();
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TTY.init();
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// End ATINITS hooks
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wasmExports['__wasm_call_ctors']();
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// Begin ATPOSTCTORS hooks
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FS.ignorePermissions = false;
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// End ATPOSTCTORS hooks
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}
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function postRun() {
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// PThreads reuse the runtime from the main thread.
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if (Module['postRun']) {
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if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']];
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while (Module['postRun'].length) {
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addOnPostRun(Module['postRun'].shift());
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}
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}
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// Begin ATPOSTRUNS hooks
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callRuntimeCallbacks(onPostRuns);
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// End ATPOSTRUNS hooks
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}
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/** @param {string|number=} what */
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function abort(what) {
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Module['onAbort']?.(what);
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what = 'Aborted(' + what + ')';
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// TODO(sbc): Should we remove printing and leave it up to whoever
|
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// catches the exception?
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err(what);
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ABORT = true;
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what += '. Build with -sASSERTIONS for more info.';
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// Use a wasm runtime error, because a JS error might be seen as a foreign
|
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// exception, which means we'd run destructors on it. We need the error to
|
||
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// simply make the program stop.
|
||
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// FIXME This approach does not work in Wasm EH because it currently does not assume
|
||
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// all RuntimeErrors are from traps; it decides whether a RuntimeError is from
|
||
|
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// a trap or not based on a hidden field within the object. So at the moment
|
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// we don't have a way of throwing a wasm trap from JS. TODO Make a JS API that
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// allows this in the wasm spec.
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||
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|
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// Suppress closure compiler warning here. Closure compiler's builtin extern
|
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// definition for WebAssembly.RuntimeError claims it takes no arguments even
|
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// though it can.
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||
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// TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.
|
||
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/** @suppress {checkTypes} */
|
||
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var e = new WebAssembly.RuntimeError(what);
|
||
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|
||
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// Throw the error whether or not MODULARIZE is set because abort is used
|
||
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// in code paths apart from instantiation where an exception is expected
|
||
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// to be thrown when abort is called.
|
||
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throw e;
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}
|
||
|
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|
||
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var wasmBinaryFile;
|
||
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|
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function findWasmBinary() {
|
||
|
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return locateFile('pmom.wasm');
|
||
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}
|
||
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|
||
|
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function getBinarySync(file) {
|
||
|
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if (file == wasmBinaryFile && wasmBinary) {
|
||
|
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return new Uint8Array(wasmBinary);
|
||
|
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}
|
||
|
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if (readBinary) {
|
||
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return readBinary(file);
|
||
|
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}
|
||
|
|
// Throwing a plain string here, even though it not normally adviables since
|
||
|
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// this gets turning into an `abort` in instantiateArrayBuffer.
|
||
|
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throw 'both async and sync fetching of the wasm failed';
|
||
|
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}
|
||
|
|
|
||
|
|
async function getWasmBinary(binaryFile) {
|
||
|
|
// If we don't have the binary yet, load it asynchronously using readAsync.
|
||
|
|
if (!wasmBinary) {
|
||
|
|
// Fetch the binary using readAsync
|
||
|
|
try {
|
||
|
|
var response = await readAsync(binaryFile);
|
||
|
|
return new Uint8Array(response);
|
||
|
|
} catch {
|
||
|
|
// Fall back to getBinarySync below;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Otherwise, getBinarySync should be able to get it synchronously
|
||
|
|
return getBinarySync(binaryFile);
|
||
|
|
}
|
||
|
|
|
||
|
|
async function instantiateArrayBuffer(binaryFile, imports) {
|
||
|
|
try {
|
||
|
|
var binary = await getWasmBinary(binaryFile);
|
||
|
|
var instance = await WebAssembly.instantiate(binary, imports);
|
||
|
|
return instance;
|
||
|
|
} catch (reason) {
|
||
|
|
err(`failed to asynchronously prepare wasm: ${reason}`);
|
||
|
|
|
||
|
|
abort(reason);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
async function instantiateAsync(binary, binaryFile, imports) {
|
||
|
|
if (!binary
|
||
|
|
// Don't use streaming for file:// delivered objects in a webview, fetch them synchronously.
|
||
|
|
&& !isFileURI(binaryFile)
|
||
|
|
// Avoid instantiateStreaming() on Node.js environment for now, as while
|
||
|
|
// Node.js v18.1.0 implements it, it does not have a full fetch()
|
||
|
|
// implementation yet.
|
||
|
|
//
|
||
|
|
// Reference:
|
||
|
|
// https://github.com/emscripten-core/emscripten/pull/16917
|
||
|
|
&& !ENVIRONMENT_IS_NODE
|
||
|
|
) {
|
||
|
|
try {
|
||
|
|
var response = fetch(binaryFile, { credentials: 'same-origin' });
|
||
|
|
var instantiationResult = await WebAssembly.instantiateStreaming(response, imports);
|
||
|
|
return instantiationResult;
|
||
|
|
} catch (reason) {
|
||
|
|
// We expect the most common failure cause to be a bad MIME type for the binary,
|
||
|
|
// in which case falling back to ArrayBuffer instantiation should work.
|
||
|
|
err(`wasm streaming compile failed: ${reason}`);
|
||
|
|
err('falling back to ArrayBuffer instantiation');
|
||
|
|
// fall back of instantiateArrayBuffer below
|
||
|
|
};
|
||
|
|
}
|
||
|
|
return instantiateArrayBuffer(binaryFile, imports);
|
||
|
|
}
|
||
|
|
|
||
|
|
function getWasmImports() {
|
||
|
|
// prepare imports
|
||
|
|
var imports = {
|
||
|
|
'env': wasmImports,
|
||
|
|
'wasi_snapshot_preview1': wasmImports,
|
||
|
|
};
|
||
|
|
return imports;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Create the wasm instance.
|
||
|
|
// Receives the wasm imports, returns the exports.
|
||
|
|
async function createWasm() {
|
||
|
|
// Load the wasm module and create an instance of using native support in the JS engine.
|
||
|
|
// handle a generated wasm instance, receiving its exports and
|
||
|
|
// performing other necessary setup
|
||
|
|
/** @param {WebAssembly.Module=} module*/
|
||
|
|
function receiveInstance(instance, module) {
|
||
|
|
wasmExports = instance.exports;
|
||
|
|
|
||
|
|
assignWasmExports(wasmExports);
|
||
|
|
|
||
|
|
updateMemoryViews();
|
||
|
|
|
||
|
|
removeRunDependency('wasm-instantiate');
|
||
|
|
return wasmExports;
|
||
|
|
}
|
||
|
|
addRunDependency('wasm-instantiate');
|
||
|
|
|
||
|
|
// Prefer streaming instantiation if available.
|
||
|
|
function receiveInstantiationResult(result) {
|
||
|
|
// 'result' is a ResultObject object which has both the module and instance.
|
||
|
|
// receiveInstance() will swap in the exports (to Module.asm) so they can be called
|
||
|
|
// TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line.
|
||
|
|
// When the regression is fixed, can restore the above PTHREADS-enabled path.
|
||
|
|
return receiveInstance(result['instance']);
|
||
|
|
}
|
||
|
|
|
||
|
|
var info = getWasmImports();
|
||
|
|
|
||
|
|
// User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback
|
||
|
|
// to manually instantiate the Wasm module themselves. This allows pages to
|
||
|
|
// run the instantiation parallel to any other async startup actions they are
|
||
|
|
// performing.
|
||
|
|
// Also pthreads and wasm workers initialize the wasm instance through this
|
||
|
|
// path.
|
||
|
|
if (Module['instantiateWasm']) {
|
||
|
|
return new Promise((resolve, reject) => {
|
||
|
|
Module['instantiateWasm'](info, (inst, mod) => {
|
||
|
|
resolve(receiveInstance(inst, mod));
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
wasmBinaryFile ??= findWasmBinary();
|
||
|
|
var result = await instantiateAsync(wasmBinary, wasmBinaryFile, info);
|
||
|
|
var exports = receiveInstantiationResult(result);
|
||
|
|
return exports;
|
||
|
|
}
|
||
|
|
|
||
|
|
// end include: preamble.js
|
||
|
|
|
||
|
|
// Begin JS library code
|
||
|
|
|
||
|
|
|
||
|
|
class ExitStatus {
|
||
|
|
name = 'ExitStatus';
|
||
|
|
constructor(status) {
|
||
|
|
this.message = `Program terminated with exit(${status})`;
|
||
|
|
this.status = status;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var callRuntimeCallbacks = (callbacks) => {
|
||
|
|
while (callbacks.length > 0) {
|
||
|
|
// Pass the module as the first argument.
|
||
|
|
callbacks.shift()(Module);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
var onPostRuns = [];
|
||
|
|
var addOnPostRun = (cb) => onPostRuns.push(cb);
|
||
|
|
|
||
|
|
var onPreRuns = [];
|
||
|
|
var addOnPreRun = (cb) => onPreRuns.push(cb);
|
||
|
|
|
||
|
|
var runDependencies = 0;
|
||
|
|
|
||
|
|
|
||
|
|
var dependenciesFulfilled = null;
|
||
|
|
var removeRunDependency = (id) => {
|
||
|
|
runDependencies--;
|
||
|
|
|
||
|
|
Module['monitorRunDependencies']?.(runDependencies);
|
||
|
|
|
||
|
|
if (runDependencies == 0) {
|
||
|
|
if (dependenciesFulfilled) {
|
||
|
|
var callback = dependenciesFulfilled;
|
||
|
|
dependenciesFulfilled = null;
|
||
|
|
callback(); // can add another dependenciesFulfilled
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
var addRunDependency = (id) => {
|
||
|
|
runDependencies++;
|
||
|
|
|
||
|
|
Module['monitorRunDependencies']?.(runDependencies);
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {number} ptr
|
||
|
|
* @param {string} type
|
||
|
|
*/
|
||
|
|
function getValue(ptr, type = 'i8') {
|
||
|
|
if (type.endsWith('*')) type = '*';
|
||
|
|
switch (type) {
|
||
|
|
case 'i1': return HEAP8[ptr];
|
||
|
|
case 'i8': return HEAP8[ptr];
|
||
|
|
case 'i16': return HEAP16[((ptr)>>1)];
|
||
|
|
case 'i32': return HEAP32[((ptr)>>2)];
|
||
|
|
case 'i64': return HEAP64[((ptr)>>3)];
|
||
|
|
case 'float': return HEAPF32[((ptr)>>2)];
|
||
|
|
case 'double': return HEAPF64[((ptr)>>3)];
|
||
|
|
case '*': return HEAPU32[((ptr)>>2)];
|
||
|
|
default: abort(`invalid type for getValue: ${type}`);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var noExitRuntime = true;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {number} ptr
|
||
|
|
* @param {number} value
|
||
|
|
* @param {string} type
|
||
|
|
*/
|
||
|
|
function setValue(ptr, value, type = 'i8') {
|
||
|
|
if (type.endsWith('*')) type = '*';
|
||
|
|
switch (type) {
|
||
|
|
case 'i1': HEAP8[ptr] = value; break;
|
||
|
|
case 'i8': HEAP8[ptr] = value; break;
|
||
|
|
case 'i16': HEAP16[((ptr)>>1)] = value; break;
|
||
|
|
case 'i32': HEAP32[((ptr)>>2)] = value; break;
|
||
|
|
case 'i64': HEAP64[((ptr)>>3)] = BigInt(value); break;
|
||
|
|
case 'float': HEAPF32[((ptr)>>2)] = value; break;
|
||
|
|
case 'double': HEAPF64[((ptr)>>3)] = value; break;
|
||
|
|
case '*': HEAPU32[((ptr)>>2)] = value; break;
|
||
|
|
default: abort(`invalid type for setValue: ${type}`);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var stackRestore = (val) => __emscripten_stack_restore(val);
|
||
|
|
|
||
|
|
var stackSave = () => _emscripten_stack_get_current();
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
var syscallGetVarargI = () => {
|
||
|
|
// the `+` prepended here is necessary to convince the JSCompiler that varargs is indeed a number.
|
||
|
|
var ret = HEAP32[((+SYSCALLS.varargs)>>2)];
|
||
|
|
SYSCALLS.varargs += 4;
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
var syscallGetVarargP = syscallGetVarargI;
|
||
|
|
|
||
|
|
|
||
|
|
var PATH = {
|
||
|
|
isAbs:(path) => path.charAt(0) === '/',
|
||
|
|
splitPath:(filename) => {
|
||
|
|
var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
|
||
|
|
return splitPathRe.exec(filename).slice(1);
|
||
|
|
},
|
||
|
|
normalizeArray:(parts, allowAboveRoot) => {
|
||
|
|
// if the path tries to go above the root, `up` ends up > 0
|
||
|
|
var up = 0;
|
||
|
|
for (var i = parts.length - 1; i >= 0; i--) {
|
||
|
|
var last = parts[i];
|
||
|
|
if (last === '.') {
|
||
|
|
parts.splice(i, 1);
|
||
|
|
} else if (last === '..') {
|
||
|
|
parts.splice(i, 1);
|
||
|
|
up++;
|
||
|
|
} else if (up) {
|
||
|
|
parts.splice(i, 1);
|
||
|
|
up--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// if the path is allowed to go above the root, restore leading ..s
|
||
|
|
if (allowAboveRoot) {
|
||
|
|
for (; up; up--) {
|
||
|
|
parts.unshift('..');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return parts;
|
||
|
|
},
|
||
|
|
normalize:(path) => {
|
||
|
|
var isAbsolute = PATH.isAbs(path),
|
||
|
|
trailingSlash = path.slice(-1) === '/';
|
||
|
|
// Normalize the path
|
||
|
|
path = PATH.normalizeArray(path.split('/').filter((p) => !!p), !isAbsolute).join('/');
|
||
|
|
if (!path && !isAbsolute) {
|
||
|
|
path = '.';
|
||
|
|
}
|
||
|
|
if (path && trailingSlash) {
|
||
|
|
path += '/';
|
||
|
|
}
|
||
|
|
return (isAbsolute ? '/' : '') + path;
|
||
|
|
},
|
||
|
|
dirname:(path) => {
|
||
|
|
var result = PATH.splitPath(path),
|
||
|
|
root = result[0],
|
||
|
|
dir = result[1];
|
||
|
|
if (!root && !dir) {
|
||
|
|
// No dirname whatsoever
|
||
|
|
return '.';
|
||
|
|
}
|
||
|
|
if (dir) {
|
||
|
|
// It has a dirname, strip trailing slash
|
||
|
|
dir = dir.slice(0, -1);
|
||
|
|
}
|
||
|
|
return root + dir;
|
||
|
|
},
|
||
|
|
basename:(path) => path && path.match(/([^\/]+|\/)\/*$/)[1],
|
||
|
|
join:(...paths) => PATH.normalize(paths.join('/')),
|
||
|
|
join2:(l, r) => PATH.normalize(l + '/' + r),
|
||
|
|
};
|
||
|
|
|
||
|
|
var initRandomFill = () => {
|
||
|
|
// This block is not needed on v19+ since crypto.getRandomValues is builtin
|
||
|
|
if (ENVIRONMENT_IS_NODE) {
|
||
|
|
var nodeCrypto = require('crypto');
|
||
|
|
return (view) => nodeCrypto.randomFillSync(view);
|
||
|
|
}
|
||
|
|
|
||
|
|
return (view) => crypto.getRandomValues(view);
|
||
|
|
};
|
||
|
|
var randomFill = (view) => {
|
||
|
|
// Lazily init on the first invocation.
|
||
|
|
(randomFill = initRandomFill())(view);
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
var PATH_FS = {
|
||
|
|
resolve:(...args) => {
|
||
|
|
var resolvedPath = '',
|
||
|
|
resolvedAbsolute = false;
|
||
|
|
for (var i = args.length - 1; i >= -1 && !resolvedAbsolute; i--) {
|
||
|
|
var path = (i >= 0) ? args[i] : FS.cwd();
|
||
|
|
// Skip empty and invalid entries
|
||
|
|
if (typeof path != 'string') {
|
||
|
|
throw new TypeError('Arguments to path.resolve must be strings');
|
||
|
|
} else if (!path) {
|
||
|
|
return ''; // an invalid portion invalidates the whole thing
|
||
|
|
}
|
||
|
|
resolvedPath = path + '/' + resolvedPath;
|
||
|
|
resolvedAbsolute = PATH.isAbs(path);
|
||
|
|
}
|
||
|
|
// At this point the path should be resolved to a full absolute path, but
|
||
|
|
// handle relative paths to be safe (might happen when process.cwd() fails)
|
||
|
|
resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter((p) => !!p), !resolvedAbsolute).join('/');
|
||
|
|
return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
|
||
|
|
},
|
||
|
|
relative:(from, to) => {
|
||
|
|
from = PATH_FS.resolve(from).slice(1);
|
||
|
|
to = PATH_FS.resolve(to).slice(1);
|
||
|
|
function trim(arr) {
|
||
|
|
var start = 0;
|
||
|
|
for (; start < arr.length; start++) {
|
||
|
|
if (arr[start] !== '') break;
|
||
|
|
}
|
||
|
|
var end = arr.length - 1;
|
||
|
|
for (; end >= 0; end--) {
|
||
|
|
if (arr[end] !== '') break;
|
||
|
|
}
|
||
|
|
if (start > end) return [];
|
||
|
|
return arr.slice(start, end - start + 1);
|
||
|
|
}
|
||
|
|
var fromParts = trim(from.split('/'));
|
||
|
|
var toParts = trim(to.split('/'));
|
||
|
|
var length = Math.min(fromParts.length, toParts.length);
|
||
|
|
var samePartsLength = length;
|
||
|
|
for (var i = 0; i < length; i++) {
|
||
|
|
if (fromParts[i] !== toParts[i]) {
|
||
|
|
samePartsLength = i;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
var outputParts = [];
|
||
|
|
for (var i = samePartsLength; i < fromParts.length; i++) {
|
||
|
|
outputParts.push('..');
|
||
|
|
}
|
||
|
|
outputParts = outputParts.concat(toParts.slice(samePartsLength));
|
||
|
|
return outputParts.join('/');
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
var UTF8Decoder = globalThis.TextDecoder && new TextDecoder();
|
||
|
|
|
||
|
|
var findStringEnd = (heapOrArray, idx, maxBytesToRead, ignoreNul) => {
|
||
|
|
var maxIdx = idx + maxBytesToRead;
|
||
|
|
if (ignoreNul) return maxIdx;
|
||
|
|
// TextDecoder needs to know the byte length in advance, it doesn't stop on
|
||
|
|
// null terminator by itself.
|
||
|
|
// As a tiny code save trick, compare idx against maxIdx using a negation,
|
||
|
|
// so that maxBytesToRead=undefined/NaN means Infinity.
|
||
|
|
while (heapOrArray[idx] && !(idx >= maxIdx)) ++idx;
|
||
|
|
return idx;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Given a pointer 'idx' to a null-terminated UTF8-encoded string in the given
|
||
|
|
* array that contains uint8 values, returns a copy of that string as a
|
||
|
|
* Javascript String object.
|
||
|
|
* heapOrArray is either a regular array, or a JavaScript typed array view.
|
||
|
|
* @param {number=} idx
|
||
|
|
* @param {number=} maxBytesToRead
|
||
|
|
* @param {boolean=} ignoreNul - If true, the function will not stop on a NUL character.
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
var UTF8ArrayToString = (heapOrArray, idx = 0, maxBytesToRead, ignoreNul) => {
|
||
|
|
|
||
|
|
var endPtr = findStringEnd(heapOrArray, idx, maxBytesToRead, ignoreNul);
|
||
|
|
|
||
|
|
// When using conditional TextDecoder, skip it for short strings as the overhead of the native call is not worth it.
|
||
|
|
if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
|
||
|
|
return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr));
|
||
|
|
}
|
||
|
|
var str = '';
|
||
|
|
while (idx < endPtr) {
|
||
|
|
// For UTF8 byte structure, see:
|
||
|
|
// http://en.wikipedia.org/wiki/UTF-8#Description
|
||
|
|
// https://www.ietf.org/rfc/rfc2279.txt
|
||
|
|
// https://tools.ietf.org/html/rfc3629
|
||
|
|
var u0 = heapOrArray[idx++];
|
||
|
|
if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }
|
||
|
|
var u1 = heapOrArray[idx++] & 63;
|
||
|
|
if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }
|
||
|
|
var u2 = heapOrArray[idx++] & 63;
|
||
|
|
if ((u0 & 0xF0) == 0xE0) {
|
||
|
|
u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
|
||
|
|
} else {
|
||
|
|
u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heapOrArray[idx++] & 63);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (u0 < 0x10000) {
|
||
|
|
str += String.fromCharCode(u0);
|
||
|
|
} else {
|
||
|
|
var ch = u0 - 0x10000;
|
||
|
|
str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return str;
|
||
|
|
};
|
||
|
|
|
||
|
|
var FS_stdin_getChar_buffer = [];
|
||
|
|
|
||
|
|
var lengthBytesUTF8 = (str) => {
|
||
|
|
var len = 0;
|
||
|
|
for (var i = 0; i < str.length; ++i) {
|
||
|
|
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
|
||
|
|
// unit, not a Unicode code point of the character! So decode
|
||
|
|
// UTF16->UTF32->UTF8.
|
||
|
|
// See http://unicode.org/faq/utf_bom.html#utf16-3
|
||
|
|
var c = str.charCodeAt(i); // possibly a lead surrogate
|
||
|
|
if (c <= 0x7F) {
|
||
|
|
len++;
|
||
|
|
} else if (c <= 0x7FF) {
|
||
|
|
len += 2;
|
||
|
|
} else if (c >= 0xD800 && c <= 0xDFFF) {
|
||
|
|
len += 4; ++i;
|
||
|
|
} else {
|
||
|
|
len += 3;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return len;
|
||
|
|
};
|
||
|
|
|
||
|
|
var stringToUTF8Array = (str, heap, outIdx, maxBytesToWrite) => {
|
||
|
|
// Parameter maxBytesToWrite is not optional. Negative values, 0, null,
|
||
|
|
// undefined and false each don't write out any bytes.
|
||
|
|
if (!(maxBytesToWrite > 0))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
var startIdx = outIdx;
|
||
|
|
var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator.
|
||
|
|
for (var i = 0; i < str.length; ++i) {
|
||
|
|
// For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description
|
||
|
|
// and https://www.ietf.org/rfc/rfc2279.txt
|
||
|
|
// and https://tools.ietf.org/html/rfc3629
|
||
|
|
var u = str.codePointAt(i);
|
||
|
|
if (u <= 0x7F) {
|
||
|
|
if (outIdx >= endIdx) break;
|
||
|
|
heap[outIdx++] = u;
|
||
|
|
} else if (u <= 0x7FF) {
|
||
|
|
if (outIdx + 1 >= endIdx) break;
|
||
|
|
heap[outIdx++] = 0xC0 | (u >> 6);
|
||
|
|
heap[outIdx++] = 0x80 | (u & 63);
|
||
|
|
} else if (u <= 0xFFFF) {
|
||
|
|
if (outIdx + 2 >= endIdx) break;
|
||
|
|
heap[outIdx++] = 0xE0 | (u >> 12);
|
||
|
|
heap[outIdx++] = 0x80 | ((u >> 6) & 63);
|
||
|
|
heap[outIdx++] = 0x80 | (u & 63);
|
||
|
|
} else {
|
||
|
|
if (outIdx + 3 >= endIdx) break;
|
||
|
|
heap[outIdx++] = 0xF0 | (u >> 18);
|
||
|
|
heap[outIdx++] = 0x80 | ((u >> 12) & 63);
|
||
|
|
heap[outIdx++] = 0x80 | ((u >> 6) & 63);
|
||
|
|
heap[outIdx++] = 0x80 | (u & 63);
|
||
|
|
// Gotcha: if codePoint is over 0xFFFF, it is represented as a surrogate pair in UTF-16.
|
||
|
|
// We need to manually skip over the second code unit for correct iteration.
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Null-terminate the pointer to the buffer.
|
||
|
|
heap[outIdx] = 0;
|
||
|
|
return outIdx - startIdx;
|
||
|
|
};
|
||
|
|
/** @type {function(string, boolean=, number=)} */
|
||
|
|
var intArrayFromString = (stringy, dontAddNull, length) => {
|
||
|
|
var len = length > 0 ? length : lengthBytesUTF8(stringy)+1;
|
||
|
|
var u8array = new Array(len);
|
||
|
|
var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length);
|
||
|
|
if (dontAddNull) u8array.length = numBytesWritten;
|
||
|
|
return u8array;
|
||
|
|
};
|
||
|
|
var FS_stdin_getChar = () => {
|
||
|
|
if (!FS_stdin_getChar_buffer.length) {
|
||
|
|
var result = null;
|
||
|
|
if (ENVIRONMENT_IS_NODE) {
|
||
|
|
// we will read data by chunks of BUFSIZE
|
||
|
|
var BUFSIZE = 256;
|
||
|
|
var buf = Buffer.alloc(BUFSIZE);
|
||
|
|
var bytesRead = 0;
|
||
|
|
|
||
|
|
// For some reason we must suppress a closure warning here, even though
|
||
|
|
// fd definitely exists on process.stdin, and is even the proper way to
|
||
|
|
// get the fd of stdin,
|
||
|
|
// https://github.com/nodejs/help/issues/2136#issuecomment-523649904
|
||
|
|
// This started to happen after moving this logic out of library_tty.js,
|
||
|
|
// so it is related to the surrounding code in some unclear manner.
|
||
|
|
/** @suppress {missingProperties} */
|
||
|
|
var fd = process.stdin.fd;
|
||
|
|
|
||
|
|
try {
|
||
|
|
bytesRead = fs.readSync(fd, buf, 0, BUFSIZE);
|
||
|
|
} catch(e) {
|
||
|
|
// Cross-platform differences: on Windows, reading EOF throws an
|
||
|
|
// exception, but on other OSes, reading EOF returns 0. Uniformize
|
||
|
|
// behavior by treating the EOF exception to return 0.
|
||
|
|
if (e.toString().includes('EOF')) bytesRead = 0;
|
||
|
|
else throw e;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (bytesRead > 0) {
|
||
|
|
result = buf.slice(0, bytesRead).toString('utf-8');
|
||
|
|
}
|
||
|
|
} else
|
||
|
|
if (globalThis.window?.prompt) {
|
||
|
|
// Browser.
|
||
|
|
result = window.prompt('Input: '); // returns null on cancel
|
||
|
|
if (result !== null) {
|
||
|
|
result += '\n';
|
||
|
|
}
|
||
|
|
} else
|
||
|
|
{}
|
||
|
|
if (!result) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
FS_stdin_getChar_buffer = intArrayFromString(result, true);
|
||
|
|
}
|
||
|
|
return FS_stdin_getChar_buffer.shift();
|
||
|
|
};
|
||
|
|
var TTY = {
|
||
|
|
ttys:[],
|
||
|
|
init() {
|
||
|
|
// https://github.com/emscripten-core/emscripten/pull/1555
|
||
|
|
// if (ENVIRONMENT_IS_NODE) {
|
||
|
|
// // currently, FS.init does not distinguish if process.stdin is a file or TTY
|
||
|
|
// // device, it always assumes it's a TTY device. because of this, we're forcing
|
||
|
|
// // process.stdin to UTF8 encoding to at least make stdin reading compatible
|
||
|
|
// // with text files until FS.init can be refactored.
|
||
|
|
// process.stdin.setEncoding('utf8');
|
||
|
|
// }
|
||
|
|
},
|
||
|
|
shutdown() {
|
||
|
|
// https://github.com/emscripten-core/emscripten/pull/1555
|
||
|
|
// if (ENVIRONMENT_IS_NODE) {
|
||
|
|
// // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)?
|
||
|
|
// // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation
|
||
|
|
// // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists?
|
||
|
|
// // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle
|
||
|
|
// // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call
|
||
|
|
// process.stdin.pause();
|
||
|
|
// }
|
||
|
|
},
|
||
|
|
register(dev, ops) {
|
||
|
|
TTY.ttys[dev] = { input: [], output: [], ops: ops };
|
||
|
|
FS.registerDevice(dev, TTY.stream_ops);
|
||
|
|
},
|
||
|
|
stream_ops:{
|
||
|
|
open(stream) {
|
||
|
|
var tty = TTY.ttys[stream.node.rdev];
|
||
|
|
if (!tty) {
|
||
|
|
throw new FS.ErrnoError(43);
|
||
|
|
}
|
||
|
|
stream.tty = tty;
|
||
|
|
stream.seekable = false;
|
||
|
|
},
|
||
|
|
close(stream) {
|
||
|
|
// flush any pending line data
|
||
|
|
stream.tty.ops.fsync(stream.tty);
|
||
|
|
},
|
||
|
|
fsync(stream) {
|
||
|
|
stream.tty.ops.fsync(stream.tty);
|
||
|
|
},
|
||
|
|
read(stream, buffer, offset, length, pos /* ignored */) {
|
||
|
|
if (!stream.tty || !stream.tty.ops.get_char) {
|
||
|
|
throw new FS.ErrnoError(60);
|
||
|
|
}
|
||
|
|
var bytesRead = 0;
|
||
|
|
for (var i = 0; i < length; i++) {
|
||
|
|
var result;
|
||
|
|
try {
|
||
|
|
result = stream.tty.ops.get_char(stream.tty);
|
||
|
|
} catch (e) {
|
||
|
|
throw new FS.ErrnoError(29);
|
||
|
|
}
|
||
|
|
if (result === undefined && bytesRead === 0) {
|
||
|
|
throw new FS.ErrnoError(6);
|
||
|
|
}
|
||
|
|
if (result === null || result === undefined) break;
|
||
|
|
bytesRead++;
|
||
|
|
buffer[offset+i] = result;
|
||
|
|
}
|
||
|
|
if (bytesRead) {
|
||
|
|
stream.node.atime = Date.now();
|
||
|
|
}
|
||
|
|
return bytesRead;
|
||
|
|
},
|
||
|
|
write(stream, buffer, offset, length, pos) {
|
||
|
|
if (!stream.tty || !stream.tty.ops.put_char) {
|
||
|
|
throw new FS.ErrnoError(60);
|
||
|
|
}
|
||
|
|
try {
|
||
|
|
for (var i = 0; i < length; i++) {
|
||
|
|
stream.tty.ops.put_char(stream.tty, buffer[offset+i]);
|
||
|
|
}
|
||
|
|
} catch (e) {
|
||
|
|
throw new FS.ErrnoError(29);
|
||
|
|
}
|
||
|
|
if (length) {
|
||
|
|
stream.node.mtime = stream.node.ctime = Date.now();
|
||
|
|
}
|
||
|
|
return i;
|
||
|
|
},
|
||
|
|
},
|
||
|
|
default_tty_ops:{
|
||
|
|
get_char(tty) {
|
||
|
|
return FS_stdin_getChar();
|
||
|
|
},
|
||
|
|
put_char(tty, val) {
|
||
|
|
if (val === null || val === 10) {
|
||
|
|
out(UTF8ArrayToString(tty.output));
|
||
|
|
tty.output = [];
|
||
|
|
} else {
|
||
|
|
if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle.
|
||
|
|
}
|
||
|
|
},
|
||
|
|
fsync(tty) {
|
||
|
|
if (tty.output?.length > 0) {
|
||
|
|
out(UTF8ArrayToString(tty.output));
|
||
|
|
tty.output = [];
|
||
|
|
}
|
||
|
|
},
|
||
|
|
ioctl_tcgets(tty) {
|
||
|
|
// typical setting
|
||
|
|
return {
|
||
|
|
c_iflag: 25856,
|
||
|
|
c_oflag: 5,
|
||
|
|
c_cflag: 191,
|
||
|
|
c_lflag: 35387,
|
||
|
|
c_cc: [
|
||
|
|
0x03, 0x1c, 0x7f, 0x15, 0x04, 0x00, 0x01, 0x00, 0x11, 0x13, 0x1a, 0x00,
|
||
|
|
0x12, 0x0f, 0x17, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||
|
|
]
|
||
|
|
};
|
||
|
|
},
|
||
|
|
ioctl_tcsets(tty, optional_actions, data) {
|
||
|
|
// currently just ignore
|
||
|
|
return 0;
|
||
|
|
},
|
||
|
|
ioctl_tiocgwinsz(tty) {
|
||
|
|
return [24, 80];
|
||
|
|
},
|
||
|
|
},
|
||
|
|
default_tty1_ops:{
|
||
|
|
put_char(tty, val) {
|
||
|
|
if (val === null || val === 10) {
|
||
|
|
err(UTF8ArrayToString(tty.output));
|
||
|
|
tty.output = [];
|
||
|
|
} else {
|
||
|
|
if (val != 0) tty.output.push(val);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
fsync(tty) {
|
||
|
|
if (tty.output?.length > 0) {
|
||
|
|
err(UTF8ArrayToString(tty.output));
|
||
|
|
tty.output = [];
|
||
|
|
}
|
||
|
|
},
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
var mmapAlloc = (size) => {
|
||
|
|
abort();
|
||
|
|
};
|
||
|
|
var MEMFS = {
|
||
|
|
ops_table:null,
|
||
|
|
mount(mount) {
|
||
|
|
return MEMFS.createNode(null, '/', 16895, 0);
|
||
|
|
},
|
||
|
|
createNode(parent, name, mode, dev) {
|
||
|
|
if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
|
||
|
|
// no supported
|
||
|
|
throw new FS.ErrnoError(63);
|
||
|
|
}
|
||
|
|
MEMFS.ops_table ||= {
|
||
|
|
dir: {
|
||
|
|
node: {
|
||
|
|
getattr: MEMFS.node_ops.getattr,
|
||
|
|
setattr: MEMFS.node_ops.setattr,
|
||
|
|
lookup: MEMFS.node_ops.lookup,
|
||
|
|
mknod: MEMFS.node_ops.mknod,
|
||
|
|
rename: MEMFS.node_ops.rename,
|
||
|
|
unlink: MEMFS.node_ops.unlink,
|
||
|
|
rmdir: MEMFS.node_ops.rmdir,
|
||
|
|
readdir: MEMFS.node_ops.readdir,
|
||
|
|
symlink: MEMFS.node_ops.symlink
|
||
|
|
},
|
||
|
|
stream: {
|
||
|
|
llseek: MEMFS.stream_ops.llseek
|
||
|
|
}
|
||
|
|
},
|
||
|
|
file: {
|
||
|
|
node: {
|
||
|
|
getattr: MEMFS.node_ops.getattr,
|
||
|
|
setattr: MEMFS.node_ops.setattr
|
||
|
|
},
|
||
|
|
stream: {
|
||
|
|
llseek: MEMFS.stream_ops.llseek,
|
||
|
|
read: MEMFS.stream_ops.read,
|
||
|
|
write: MEMFS.stream_ops.write,
|
||
|
|
mmap: MEMFS.stream_ops.mmap,
|
||
|
|
msync: MEMFS.stream_ops.msync
|
||
|
|
}
|
||
|
|
},
|
||
|
|
link: {
|
||
|
|
node: {
|
||
|
|
getattr: MEMFS.node_ops.getattr,
|
||
|
|
setattr: MEMFS.node_ops.setattr,
|
||
|
|
readlink: MEMFS.node_ops.readlink
|
||
|
|
},
|
||
|
|
stream: {}
|
||
|
|
},
|
||
|
|
chrdev: {
|
||
|
|
node: {
|
||
|
|
getattr: MEMFS.node_ops.getattr,
|
||
|
|
setattr: MEMFS.node_ops.setattr
|
||
|
|
},
|
||
|
|
stream: FS.chrdev_stream_ops
|
||
|
|
}
|
||
|
|
};
|
||
|
|
var node = FS.createNode(parent, name, mode, dev);
|
||
|
|
if (FS.isDir(node.mode)) {
|
||
|
|
node.node_ops = MEMFS.ops_table.dir.node;
|
||
|
|
node.stream_ops = MEMFS.ops_table.dir.stream;
|
||
|
|
node.contents = {};
|
||
|
|
} else if (FS.isFile(node.mode)) {
|
||
|
|
node.node_ops = MEMFS.ops_table.file.node;
|
||
|
|
node.stream_ops = MEMFS.ops_table.file.stream;
|
||
|
|
node.usedBytes = 0; // The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity.
|
||
|
|
// When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred
|
||
|
|
// for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size
|
||
|
|
// penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme.
|
||
|
|
node.contents = null;
|
||
|
|
} else if (FS.isLink(node.mode)) {
|
||
|
|
node.node_ops = MEMFS.ops_table.link.node;
|
||
|
|
node.stream_ops = MEMFS.ops_table.link.stream;
|
||
|
|
} else if (FS.isChrdev(node.mode)) {
|
||
|
|
node.node_ops = MEMFS.ops_table.chrdev.node;
|
||
|
|
node.stream_ops = MEMFS.ops_table.chrdev.stream;
|
||
|
|
}
|
||
|
|
node.atime = node.mtime = node.ctime = Date.now();
|
||
|
|
// add the new node to the parent
|
||
|
|
if (parent) {
|
||
|
|
parent.contents[name] = node;
|
||
|
|
parent.atime = parent.mtime = parent.ctime = node.atime;
|
||
|
|
}
|
||
|
|
return node;
|
||
|
|
},
|
||
|
|
getFileDataAsTypedArray(node) {
|
||
|
|
if (!node.contents) return new Uint8Array(0);
|
||
|
|
if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes); // Make sure to not return excess unused bytes.
|
||
|
|
return new Uint8Array(node.contents);
|
||
|
|
},
|
||
|
|
expandFileStorage(node, newCapacity) {
|
||
|
|
var prevCapacity = node.contents ? node.contents.length : 0;
|
||
|
|
if (prevCapacity >= newCapacity) return; // No need to expand, the storage was already large enough.
|
||
|
|
// Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity.
|
||
|
|
// For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to
|
||
|
|
// avoid overshooting the allocation cap by a very large margin.
|
||
|
|
var CAPACITY_DOUBLING_MAX = 1024 * 1024;
|
||
|
|
newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2.0 : 1.125)) >>> 0);
|
||
|
|
if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding.
|
||
|
|
var oldContents = node.contents;
|
||
|
|
node.contents = new Uint8Array(newCapacity); // Allocate new storage.
|
||
|
|
if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0); // Copy old data over to the new storage.
|
||
|
|
},
|
||
|
|
resizeFileStorage(node, newSize) {
|
||
|
|
if (node.usedBytes == newSize) return;
|
||
|
|
if (newSize == 0) {
|
||
|
|
node.contents = null; // Fully decommit when requesting a resize to zero.
|
||
|
|
node.usedBytes = 0;
|
||
|
|
} else {
|
||
|
|
var oldContents = node.contents;
|
||
|
|
node.contents = new Uint8Array(newSize); // Allocate new storage.
|
||
|
|
if (oldContents) {
|
||
|
|
node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes))); // Copy old data over to the new storage.
|
||
|
|
}
|
||
|
|
node.usedBytes = newSize;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
node_ops:{
|
||
|
|
getattr(node) {
|
||
|
|
var attr = {};
|
||
|
|
// device numbers reuse inode numbers.
|
||
|
|
attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
|
||
|
|
attr.ino = node.id;
|
||
|
|
attr.mode = node.mode;
|
||
|
|
attr.nlink = 1;
|
||
|
|
attr.uid = 0;
|
||
|
|
attr.gid = 0;
|
||
|
|
attr.rdev = node.rdev;
|
||
|
|
if (FS.isDir(node.mode)) {
|
||
|
|
attr.size = 4096;
|
||
|
|
} else if (FS.isFile(node.mode)) {
|
||
|
|
attr.size = node.usedBytes;
|
||
|
|
} else if (FS.isLink(node.mode)) {
|
||
|
|
attr.size = node.link.length;
|
||
|
|
} else {
|
||
|
|
attr.size = 0;
|
||
|
|
}
|
||
|
|
attr.atime = new Date(node.atime);
|
||
|
|
attr.mtime = new Date(node.mtime);
|
||
|
|
attr.ctime = new Date(node.ctime);
|
||
|
|
// NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
|
||
|
|
// but this is not required by the standard.
|
||
|
|
attr.blksize = 4096;
|
||
|
|
attr.blocks = Math.ceil(attr.size / attr.blksize);
|
||
|
|
return attr;
|
||
|
|
},
|
||
|
|
setattr(node, attr) {
|
||
|
|
for (const key of ["mode", "atime", "mtime", "ctime"]) {
|
||
|
|
if (attr[key] != null) {
|
||
|
|
node[key] = attr[key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (attr.size !== undefined) {
|
||
|
|
MEMFS.resizeFileStorage(node, attr.size);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
lookup(parent, name) {
|
||
|
|
// This error may happen quite a bit. To avoid overhead we reuse it (and
|
||
|
|
// suffer a lack of stack info).
|
||
|
|
if (!MEMFS.doesNotExistError) {
|
||
|
|
MEMFS.doesNotExistError = new FS.ErrnoError(44);
|
||
|
|
/** @suppress {checkTypes} */
|
||
|
|
MEMFS.doesNotExistError.stack = '<generic error, no stack>';
|
||
|
|
}
|
||
|
|
throw MEMFS.doesNotExistError;
|
||
|
|
},
|
||
|
|
mknod(parent, name, mode, dev) {
|
||
|
|
return MEMFS.createNode(parent, name, mode, dev);
|
||
|
|
},
|
||
|
|
rename(old_node, new_dir, new_name) {
|
||
|
|
var new_node;
|
||
|
|
try {
|
||
|
|
new_node = FS.lookupNode(new_dir, new_name);
|
||
|
|
} catch (e) {}
|
||
|
|
if (new_node) {
|
||
|
|
if (FS.isDir(old_node.mode)) {
|
||
|
|
// if we're overwriting a directory at new_name, make sure it's empty.
|
||
|
|
for (var i in new_node.contents) {
|
||
|
|
throw new FS.ErrnoError(55);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
FS.hashRemoveNode(new_node);
|
||
|
|
}
|
||
|
|
// do the internal rewiring
|
||
|
|
delete old_node.parent.contents[old_node.name];
|
||
|
|
new_dir.contents[new_name] = old_node;
|
||
|
|
old_node.name = new_name;
|
||
|
|
new_dir.ctime = new_dir.mtime = old_node.parent.ctime = old_node.parent.mtime = Date.now();
|
||
|
|
},
|
||
|
|
unlink(parent, name) {
|
||
|
|
delete parent.contents[name];
|
||
|
|
parent.ctime = parent.mtime = Date.now();
|
||
|
|
},
|
||
|
|
rmdir(parent, name) {
|
||
|
|
var node = FS.lookupNode(parent, name);
|
||
|
|
for (var i in node.contents) {
|
||
|
|
throw new FS.ErrnoError(55);
|
||
|
|
}
|
||
|
|
delete parent.contents[name];
|
||
|
|
parent.ctime = parent.mtime = Date.now();
|
||
|
|
},
|
||
|
|
readdir(node) {
|
||
|
|
return ['.', '..', ...Object.keys(node.contents)];
|
||
|
|
},
|
||
|
|
symlink(parent, newname, oldpath) {
|
||
|
|
var node = MEMFS.createNode(parent, newname, 0o777 | 40960, 0);
|
||
|
|
node.link = oldpath;
|
||
|
|
return node;
|
||
|
|
},
|
||
|
|
readlink(node) {
|
||
|
|
if (!FS.isLink(node.mode)) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
return node.link;
|
||
|
|
},
|
||
|
|
},
|
||
|
|
stream_ops:{
|
||
|
|
read(stream, buffer, offset, length, position) {
|
||
|
|
var contents = stream.node.contents;
|
||
|
|
if (position >= stream.node.usedBytes) return 0;
|
||
|
|
var size = Math.min(stream.node.usedBytes - position, length);
|
||
|
|
if (size > 8 && contents.subarray) { // non-trivial, and typed array
|
||
|
|
buffer.set(contents.subarray(position, position + size), offset);
|
||
|
|
} else {
|
||
|
|
for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i];
|
||
|
|
}
|
||
|
|
return size;
|
||
|
|
},
|
||
|
|
write(stream, buffer, offset, length, position, canOwn) {
|
||
|
|
|
||
|
|
if (!length) return 0;
|
||
|
|
var node = stream.node;
|
||
|
|
node.mtime = node.ctime = Date.now();
|
||
|
|
|
||
|
|
if (buffer.subarray && (!node.contents || node.contents.subarray)) { // This write is from a typed array to a typed array?
|
||
|
|
if (canOwn) {
|
||
|
|
node.contents = buffer.subarray(offset, offset + length);
|
||
|
|
node.usedBytes = length;
|
||
|
|
return length;
|
||
|
|
} else if (node.usedBytes === 0 && position === 0) { // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
|
||
|
|
node.contents = buffer.slice(offset, offset + length);
|
||
|
|
node.usedBytes = length;
|
||
|
|
return length;
|
||
|
|
} else if (position + length <= node.usedBytes) { // Writing to an already allocated and used subrange of the file?
|
||
|
|
node.contents.set(buffer.subarray(offset, offset + length), position);
|
||
|
|
return length;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Appending to an existing file and we need to reallocate, or source data did not come as a typed array.
|
||
|
|
MEMFS.expandFileStorage(node, position+length);
|
||
|
|
if (node.contents.subarray && buffer.subarray) {
|
||
|
|
// Use typed array write which is available.
|
||
|
|
node.contents.set(buffer.subarray(offset, offset + length), position);
|
||
|
|
} else {
|
||
|
|
for (var i = 0; i < length; i++) {
|
||
|
|
node.contents[position + i] = buffer[offset + i]; // Or fall back to manual write if not.
|
||
|
|
}
|
||
|
|
}
|
||
|
|
node.usedBytes = Math.max(node.usedBytes, position + length);
|
||
|
|
return length;
|
||
|
|
},
|
||
|
|
llseek(stream, offset, whence) {
|
||
|
|
var position = offset;
|
||
|
|
if (whence === 1) {
|
||
|
|
position += stream.position;
|
||
|
|
} else if (whence === 2) {
|
||
|
|
if (FS.isFile(stream.node.mode)) {
|
||
|
|
position += stream.node.usedBytes;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (position < 0) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
return position;
|
||
|
|
},
|
||
|
|
mmap(stream, length, position, prot, flags) {
|
||
|
|
if (!FS.isFile(stream.node.mode)) {
|
||
|
|
throw new FS.ErrnoError(43);
|
||
|
|
}
|
||
|
|
var ptr;
|
||
|
|
var allocated;
|
||
|
|
var contents = stream.node.contents;
|
||
|
|
// Only make a new copy when MAP_PRIVATE is specified.
|
||
|
|
if (!(flags & 2) && contents && contents.buffer === HEAP8.buffer) {
|
||
|
|
// We can't emulate MAP_SHARED when the file is not backed by the
|
||
|
|
// buffer we're mapping to (e.g. the HEAP buffer).
|
||
|
|
allocated = false;
|
||
|
|
ptr = contents.byteOffset;
|
||
|
|
} else {
|
||
|
|
allocated = true;
|
||
|
|
ptr = mmapAlloc(length);
|
||
|
|
if (!ptr) {
|
||
|
|
throw new FS.ErrnoError(48);
|
||
|
|
}
|
||
|
|
if (contents) {
|
||
|
|
// Try to avoid unnecessary slices.
|
||
|
|
if (position > 0 || position + length < contents.length) {
|
||
|
|
if (contents.subarray) {
|
||
|
|
contents = contents.subarray(position, position + length);
|
||
|
|
} else {
|
||
|
|
contents = Array.prototype.slice.call(contents, position, position + length);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
HEAP8.set(contents, ptr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return { ptr, allocated };
|
||
|
|
},
|
||
|
|
msync(stream, buffer, offset, length, mmapFlags) {
|
||
|
|
MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
|
||
|
|
// should we check if bytesWritten and length are the same?
|
||
|
|
return 0;
|
||
|
|
},
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
var FS_modeStringToFlags = (str) => {
|
||
|
|
var flagModes = {
|
||
|
|
'r': 0,
|
||
|
|
'r+': 2,
|
||
|
|
'w': 512 | 64 | 1,
|
||
|
|
'w+': 512 | 64 | 2,
|
||
|
|
'a': 1024 | 64 | 1,
|
||
|
|
'a+': 1024 | 64 | 2,
|
||
|
|
};
|
||
|
|
var flags = flagModes[str];
|
||
|
|
if (typeof flags == 'undefined') {
|
||
|
|
throw new Error(`Unknown file open mode: ${str}`);
|
||
|
|
}
|
||
|
|
return flags;
|
||
|
|
};
|
||
|
|
|
||
|
|
var FS_getMode = (canRead, canWrite) => {
|
||
|
|
var mode = 0;
|
||
|
|
if (canRead) mode |= 292 | 73;
|
||
|
|
if (canWrite) mode |= 146;
|
||
|
|
return mode;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
var asyncLoad = async (url) => {
|
||
|
|
var arrayBuffer = await readAsync(url);
|
||
|
|
return new Uint8Array(arrayBuffer);
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
var FS_createDataFile = (...args) => FS.createDataFile(...args);
|
||
|
|
|
||
|
|
var getUniqueRunDependency = (id) => {
|
||
|
|
return id;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
var preloadPlugins = [];
|
||
|
|
var FS_handledByPreloadPlugin = async (byteArray, fullname) => {
|
||
|
|
// Ensure plugins are ready.
|
||
|
|
if (typeof Browser != 'undefined') Browser.init();
|
||
|
|
|
||
|
|
for (var plugin of preloadPlugins) {
|
||
|
|
if (plugin['canHandle'](fullname)) {
|
||
|
|
return plugin['handle'](byteArray, fullname);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// In no plugin handled this file then return the original/unmodified
|
||
|
|
// byteArray.
|
||
|
|
return byteArray;
|
||
|
|
};
|
||
|
|
var FS_preloadFile = async (parent, name, url, canRead, canWrite, dontCreateFile, canOwn, preFinish) => {
|
||
|
|
// TODO we should allow people to just pass in a complete filename instead
|
||
|
|
// of parent and name being that we just join them anyways
|
||
|
|
var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
|
||
|
|
var dep = getUniqueRunDependency(`cp ${fullname}`); // might have several active requests for the same fullname
|
||
|
|
addRunDependency(dep);
|
||
|
|
|
||
|
|
try {
|
||
|
|
var byteArray = url;
|
||
|
|
if (typeof url == 'string') {
|
||
|
|
byteArray = await asyncLoad(url);
|
||
|
|
}
|
||
|
|
|
||
|
|
byteArray = await FS_handledByPreloadPlugin(byteArray, fullname);
|
||
|
|
preFinish?.();
|
||
|
|
if (!dontCreateFile) {
|
||
|
|
FS_createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
|
||
|
|
}
|
||
|
|
} finally {
|
||
|
|
removeRunDependency(dep);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
var FS_createPreloadedFile = (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) => {
|
||
|
|
FS_preloadFile(parent, name, url, canRead, canWrite, dontCreateFile, canOwn, preFinish).then(onload).catch(onerror);
|
||
|
|
};
|
||
|
|
var FS = {
|
||
|
|
root:null,
|
||
|
|
mounts:[],
|
||
|
|
devices:{
|
||
|
|
},
|
||
|
|
streams:[],
|
||
|
|
nextInode:1,
|
||
|
|
nameTable:null,
|
||
|
|
currentPath:"/",
|
||
|
|
initialized:false,
|
||
|
|
ignorePermissions:true,
|
||
|
|
filesystems:null,
|
||
|
|
syncFSRequests:0,
|
||
|
|
readFiles:{
|
||
|
|
},
|
||
|
|
ErrnoError:class {
|
||
|
|
name = 'ErrnoError';
|
||
|
|
// We set the `name` property to be able to identify `FS.ErrnoError`
|
||
|
|
// - the `name` is a standard ECMA-262 property of error objects. Kind of good to have it anyway.
|
||
|
|
// - when using PROXYFS, an error can come from an underlying FS
|
||
|
|
// as different FS objects have their own FS.ErrnoError each,
|
||
|
|
// the test `err instanceof FS.ErrnoError` won't detect an error coming from another filesystem, causing bugs.
|
||
|
|
// we'll use the reliable test `err.name == "ErrnoError"` instead
|
||
|
|
constructor(errno) {
|
||
|
|
this.errno = errno;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
FSStream:class {
|
||
|
|
shared = {};
|
||
|
|
get object() {
|
||
|
|
return this.node;
|
||
|
|
}
|
||
|
|
set object(val) {
|
||
|
|
this.node = val;
|
||
|
|
}
|
||
|
|
get isRead() {
|
||
|
|
return (this.flags & 2097155) !== 1;
|
||
|
|
}
|
||
|
|
get isWrite() {
|
||
|
|
return (this.flags & 2097155) !== 0;
|
||
|
|
}
|
||
|
|
get isAppend() {
|
||
|
|
return (this.flags & 1024);
|
||
|
|
}
|
||
|
|
get flags() {
|
||
|
|
return this.shared.flags;
|
||
|
|
}
|
||
|
|
set flags(val) {
|
||
|
|
this.shared.flags = val;
|
||
|
|
}
|
||
|
|
get position() {
|
||
|
|
return this.shared.position;
|
||
|
|
}
|
||
|
|
set position(val) {
|
||
|
|
this.shared.position = val;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
FSNode:class {
|
||
|
|
node_ops = {};
|
||
|
|
stream_ops = {};
|
||
|
|
readMode = 292 | 73;
|
||
|
|
writeMode = 146;
|
||
|
|
mounted = null;
|
||
|
|
constructor(parent, name, mode, rdev) {
|
||
|
|
if (!parent) {
|
||
|
|
parent = this; // root node sets parent to itself
|
||
|
|
}
|
||
|
|
this.parent = parent;
|
||
|
|
this.mount = parent.mount;
|
||
|
|
this.id = FS.nextInode++;
|
||
|
|
this.name = name;
|
||
|
|
this.mode = mode;
|
||
|
|
this.rdev = rdev;
|
||
|
|
this.atime = this.mtime = this.ctime = Date.now();
|
||
|
|
}
|
||
|
|
get read() {
|
||
|
|
return (this.mode & this.readMode) === this.readMode;
|
||
|
|
}
|
||
|
|
set read(val) {
|
||
|
|
val ? this.mode |= this.readMode : this.mode &= ~this.readMode;
|
||
|
|
}
|
||
|
|
get write() {
|
||
|
|
return (this.mode & this.writeMode) === this.writeMode;
|
||
|
|
}
|
||
|
|
set write(val) {
|
||
|
|
val ? this.mode |= this.writeMode : this.mode &= ~this.writeMode;
|
||
|
|
}
|
||
|
|
get isFolder() {
|
||
|
|
return FS.isDir(this.mode);
|
||
|
|
}
|
||
|
|
get isDevice() {
|
||
|
|
return FS.isChrdev(this.mode);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
lookupPath(path, opts = {}) {
|
||
|
|
if (!path) {
|
||
|
|
throw new FS.ErrnoError(44);
|
||
|
|
}
|
||
|
|
opts.follow_mount ??= true
|
||
|
|
|
||
|
|
if (!PATH.isAbs(path)) {
|
||
|
|
path = FS.cwd() + '/' + path;
|
||
|
|
}
|
||
|
|
|
||
|
|
// limit max consecutive symlinks to 40 (SYMLOOP_MAX).
|
||
|
|
linkloop: for (var nlinks = 0; nlinks < 40; nlinks++) {
|
||
|
|
// split the absolute path
|
||
|
|
var parts = path.split('/').filter((p) => !!p);
|
||
|
|
|
||
|
|
// start at the root
|
||
|
|
var current = FS.root;
|
||
|
|
var current_path = '/';
|
||
|
|
|
||
|
|
for (var i = 0; i < parts.length; i++) {
|
||
|
|
var islast = (i === parts.length-1);
|
||
|
|
if (islast && opts.parent) {
|
||
|
|
// stop resolving
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (parts[i] === '.') {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (parts[i] === '..') {
|
||
|
|
current_path = PATH.dirname(current_path);
|
||
|
|
if (FS.isRoot(current)) {
|
||
|
|
path = current_path + '/' + parts.slice(i + 1).join('/');
|
||
|
|
// We're making progress here, don't let many consecutive ..'s
|
||
|
|
// lead to ELOOP
|
||
|
|
nlinks--;
|
||
|
|
continue linkloop;
|
||
|
|
} else {
|
||
|
|
current = current.parent;
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
current_path = PATH.join2(current_path, parts[i]);
|
||
|
|
try {
|
||
|
|
current = FS.lookupNode(current, parts[i]);
|
||
|
|
} catch (e) {
|
||
|
|
// if noent_okay is true, suppress a ENOENT in the last component
|
||
|
|
// and return an object with an undefined node. This is needed for
|
||
|
|
// resolving symlinks in the path when creating a file.
|
||
|
|
if ((e?.errno === 44) && islast && opts.noent_okay) {
|
||
|
|
return { path: current_path };
|
||
|
|
}
|
||
|
|
throw e;
|
||
|
|
}
|
||
|
|
|
||
|
|
// jump to the mount's root node if this is a mountpoint
|
||
|
|
if (FS.isMountpoint(current) && (!islast || opts.follow_mount)) {
|
||
|
|
current = current.mounted.root;
|
||
|
|
}
|
||
|
|
|
||
|
|
// by default, lookupPath will not follow a symlink if it is the final path component.
|
||
|
|
// setting opts.follow = true will override this behavior.
|
||
|
|
if (FS.isLink(current.mode) && (!islast || opts.follow)) {
|
||
|
|
if (!current.node_ops.readlink) {
|
||
|
|
throw new FS.ErrnoError(52);
|
||
|
|
}
|
||
|
|
var link = current.node_ops.readlink(current);
|
||
|
|
if (!PATH.isAbs(link)) {
|
||
|
|
link = PATH.dirname(current_path) + '/' + link;
|
||
|
|
}
|
||
|
|
path = link + '/' + parts.slice(i + 1).join('/');
|
||
|
|
continue linkloop;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return { path: current_path, node: current };
|
||
|
|
}
|
||
|
|
throw new FS.ErrnoError(32);
|
||
|
|
},
|
||
|
|
getPath(node) {
|
||
|
|
var path;
|
||
|
|
while (true) {
|
||
|
|
if (FS.isRoot(node)) {
|
||
|
|
var mount = node.mount.mountpoint;
|
||
|
|
if (!path) return mount;
|
||
|
|
return mount[mount.length-1] !== '/' ? `${mount}/${path}` : mount + path;
|
||
|
|
}
|
||
|
|
path = path ? `${node.name}/${path}` : node.name;
|
||
|
|
node = node.parent;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
hashName(parentid, name) {
|
||
|
|
var hash = 0;
|
||
|
|
|
||
|
|
for (var i = 0; i < name.length; i++) {
|
||
|
|
hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
|
||
|
|
}
|
||
|
|
return ((parentid + hash) >>> 0) % FS.nameTable.length;
|
||
|
|
},
|
||
|
|
hashAddNode(node) {
|
||
|
|
var hash = FS.hashName(node.parent.id, node.name);
|
||
|
|
node.name_next = FS.nameTable[hash];
|
||
|
|
FS.nameTable[hash] = node;
|
||
|
|
},
|
||
|
|
hashRemoveNode(node) {
|
||
|
|
var hash = FS.hashName(node.parent.id, node.name);
|
||
|
|
if (FS.nameTable[hash] === node) {
|
||
|
|
FS.nameTable[hash] = node.name_next;
|
||
|
|
} else {
|
||
|
|
var current = FS.nameTable[hash];
|
||
|
|
while (current) {
|
||
|
|
if (current.name_next === node) {
|
||
|
|
current.name_next = node.name_next;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
current = current.name_next;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
lookupNode(parent, name) {
|
||
|
|
var errCode = FS.mayLookup(parent);
|
||
|
|
if (errCode) {
|
||
|
|
throw new FS.ErrnoError(errCode);
|
||
|
|
}
|
||
|
|
var hash = FS.hashName(parent.id, name);
|
||
|
|
for (var node = FS.nameTable[hash]; node; node = node.name_next) {
|
||
|
|
var nodeName = node.name;
|
||
|
|
if (node.parent.id === parent.id && nodeName === name) {
|
||
|
|
return node;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// if we failed to find it in the cache, call into the VFS
|
||
|
|
return FS.lookup(parent, name);
|
||
|
|
},
|
||
|
|
createNode(parent, name, mode, rdev) {
|
||
|
|
var node = new FS.FSNode(parent, name, mode, rdev);
|
||
|
|
|
||
|
|
FS.hashAddNode(node);
|
||
|
|
|
||
|
|
return node;
|
||
|
|
},
|
||
|
|
destroyNode(node) {
|
||
|
|
FS.hashRemoveNode(node);
|
||
|
|
},
|
||
|
|
isRoot(node) {
|
||
|
|
return node === node.parent;
|
||
|
|
},
|
||
|
|
isMountpoint(node) {
|
||
|
|
return !!node.mounted;
|
||
|
|
},
|
||
|
|
isFile(mode) {
|
||
|
|
return (mode & 61440) === 32768;
|
||
|
|
},
|
||
|
|
isDir(mode) {
|
||
|
|
return (mode & 61440) === 16384;
|
||
|
|
},
|
||
|
|
isLink(mode) {
|
||
|
|
return (mode & 61440) === 40960;
|
||
|
|
},
|
||
|
|
isChrdev(mode) {
|
||
|
|
return (mode & 61440) === 8192;
|
||
|
|
},
|
||
|
|
isBlkdev(mode) {
|
||
|
|
return (mode & 61440) === 24576;
|
||
|
|
},
|
||
|
|
isFIFO(mode) {
|
||
|
|
return (mode & 61440) === 4096;
|
||
|
|
},
|
||
|
|
isSocket(mode) {
|
||
|
|
return (mode & 49152) === 49152;
|
||
|
|
},
|
||
|
|
flagsToPermissionString(flag) {
|
||
|
|
var perms = ['r', 'w', 'rw'][flag & 3];
|
||
|
|
if ((flag & 512)) {
|
||
|
|
perms += 'w';
|
||
|
|
}
|
||
|
|
return perms;
|
||
|
|
},
|
||
|
|
nodePermissions(node, perms) {
|
||
|
|
if (FS.ignorePermissions) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
// return 0 if any user, group or owner bits are set.
|
||
|
|
if (perms.includes('r') && !(node.mode & 292)) {
|
||
|
|
return 2;
|
||
|
|
} else if (perms.includes('w') && !(node.mode & 146)) {
|
||
|
|
return 2;
|
||
|
|
} else if (perms.includes('x') && !(node.mode & 73)) {
|
||
|
|
return 2;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
},
|
||
|
|
mayLookup(dir) {
|
||
|
|
if (!FS.isDir(dir.mode)) return 54;
|
||
|
|
var errCode = FS.nodePermissions(dir, 'x');
|
||
|
|
if (errCode) return errCode;
|
||
|
|
if (!dir.node_ops.lookup) return 2;
|
||
|
|
return 0;
|
||
|
|
},
|
||
|
|
mayCreate(dir, name) {
|
||
|
|
if (!FS.isDir(dir.mode)) {
|
||
|
|
return 54;
|
||
|
|
}
|
||
|
|
try {
|
||
|
|
var node = FS.lookupNode(dir, name);
|
||
|
|
return 20;
|
||
|
|
} catch (e) {
|
||
|
|
}
|
||
|
|
return FS.nodePermissions(dir, 'wx');
|
||
|
|
},
|
||
|
|
mayDelete(dir, name, isdir) {
|
||
|
|
var node;
|
||
|
|
try {
|
||
|
|
node = FS.lookupNode(dir, name);
|
||
|
|
} catch (e) {
|
||
|
|
return e.errno;
|
||
|
|
}
|
||
|
|
var errCode = FS.nodePermissions(dir, 'wx');
|
||
|
|
if (errCode) {
|
||
|
|
return errCode;
|
||
|
|
}
|
||
|
|
if (isdir) {
|
||
|
|
if (!FS.isDir(node.mode)) {
|
||
|
|
return 54;
|
||
|
|
}
|
||
|
|
if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
|
||
|
|
return 10;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (FS.isDir(node.mode)) {
|
||
|
|
return 31;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
},
|
||
|
|
mayOpen(node, flags) {
|
||
|
|
if (!node) {
|
||
|
|
return 44;
|
||
|
|
}
|
||
|
|
if (FS.isLink(node.mode)) {
|
||
|
|
return 32;
|
||
|
|
} else if (FS.isDir(node.mode)) {
|
||
|
|
if (FS.flagsToPermissionString(flags) !== 'r' // opening for write
|
||
|
|
|| (flags & (512 | 64))) { // TODO: check for O_SEARCH? (== search for dir only)
|
||
|
|
return 31;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
|
||
|
|
},
|
||
|
|
checkOpExists(op, err) {
|
||
|
|
if (!op) {
|
||
|
|
throw new FS.ErrnoError(err);
|
||
|
|
}
|
||
|
|
return op;
|
||
|
|
},
|
||
|
|
MAX_OPEN_FDS:4096,
|
||
|
|
nextfd() {
|
||
|
|
for (var fd = 0; fd <= FS.MAX_OPEN_FDS; fd++) {
|
||
|
|
if (!FS.streams[fd]) {
|
||
|
|
return fd;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
throw new FS.ErrnoError(33);
|
||
|
|
},
|
||
|
|
getStreamChecked(fd) {
|
||
|
|
var stream = FS.getStream(fd);
|
||
|
|
if (!stream) {
|
||
|
|
throw new FS.ErrnoError(8);
|
||
|
|
}
|
||
|
|
return stream;
|
||
|
|
},
|
||
|
|
getStream:(fd) => FS.streams[fd],
|
||
|
|
createStream(stream, fd = -1) {
|
||
|
|
|
||
|
|
// clone it, so we can return an instance of FSStream
|
||
|
|
stream = Object.assign(new FS.FSStream(), stream);
|
||
|
|
if (fd == -1) {
|
||
|
|
fd = FS.nextfd();
|
||
|
|
}
|
||
|
|
stream.fd = fd;
|
||
|
|
FS.streams[fd] = stream;
|
||
|
|
return stream;
|
||
|
|
},
|
||
|
|
closeStream(fd) {
|
||
|
|
FS.streams[fd] = null;
|
||
|
|
},
|
||
|
|
dupStream(origStream, fd = -1) {
|
||
|
|
var stream = FS.createStream(origStream, fd);
|
||
|
|
stream.stream_ops?.dup?.(stream);
|
||
|
|
return stream;
|
||
|
|
},
|
||
|
|
doSetAttr(stream, node, attr) {
|
||
|
|
var setattr = stream?.stream_ops.setattr;
|
||
|
|
var arg = setattr ? stream : node;
|
||
|
|
setattr ??= node.node_ops.setattr;
|
||
|
|
FS.checkOpExists(setattr, 63)
|
||
|
|
setattr(arg, attr);
|
||
|
|
},
|
||
|
|
chrdev_stream_ops:{
|
||
|
|
open(stream) {
|
||
|
|
var device = FS.getDevice(stream.node.rdev);
|
||
|
|
// override node's stream ops with the device's
|
||
|
|
stream.stream_ops = device.stream_ops;
|
||
|
|
// forward the open call
|
||
|
|
stream.stream_ops.open?.(stream);
|
||
|
|
},
|
||
|
|
llseek() {
|
||
|
|
throw new FS.ErrnoError(70);
|
||
|
|
},
|
||
|
|
},
|
||
|
|
major:(dev) => ((dev) >> 8),
|
||
|
|
minor:(dev) => ((dev) & 0xff),
|
||
|
|
makedev:(ma, mi) => ((ma) << 8 | (mi)),
|
||
|
|
registerDevice(dev, ops) {
|
||
|
|
FS.devices[dev] = { stream_ops: ops };
|
||
|
|
},
|
||
|
|
getDevice:(dev) => FS.devices[dev],
|
||
|
|
getMounts(mount) {
|
||
|
|
var mounts = [];
|
||
|
|
var check = [mount];
|
||
|
|
|
||
|
|
while (check.length) {
|
||
|
|
var m = check.pop();
|
||
|
|
|
||
|
|
mounts.push(m);
|
||
|
|
|
||
|
|
check.push(...m.mounts);
|
||
|
|
}
|
||
|
|
|
||
|
|
return mounts;
|
||
|
|
},
|
||
|
|
syncfs(populate, callback) {
|
||
|
|
if (typeof populate == 'function') {
|
||
|
|
callback = populate;
|
||
|
|
populate = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
FS.syncFSRequests++;
|
||
|
|
|
||
|
|
if (FS.syncFSRequests > 1) {
|
||
|
|
err(`warning: ${FS.syncFSRequests} FS.syncfs operations in flight at once, probably just doing extra work`);
|
||
|
|
}
|
||
|
|
|
||
|
|
var mounts = FS.getMounts(FS.root.mount);
|
||
|
|
var completed = 0;
|
||
|
|
|
||
|
|
function doCallback(errCode) {
|
||
|
|
FS.syncFSRequests--;
|
||
|
|
return callback(errCode);
|
||
|
|
}
|
||
|
|
|
||
|
|
function done(errCode) {
|
||
|
|
if (errCode) {
|
||
|
|
if (!done.errored) {
|
||
|
|
done.errored = true;
|
||
|
|
return doCallback(errCode);
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (++completed >= mounts.length) {
|
||
|
|
doCallback(null);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// sync all mounts
|
||
|
|
for (var mount of mounts) {
|
||
|
|
if (mount.type.syncfs) {
|
||
|
|
mount.type.syncfs(mount, populate, done);
|
||
|
|
} else {
|
||
|
|
done(null);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
mount(type, opts, mountpoint) {
|
||
|
|
var root = mountpoint === '/';
|
||
|
|
var pseudo = !mountpoint;
|
||
|
|
var node;
|
||
|
|
|
||
|
|
if (root && FS.root) {
|
||
|
|
throw new FS.ErrnoError(10);
|
||
|
|
} else if (!root && !pseudo) {
|
||
|
|
var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
|
||
|
|
|
||
|
|
mountpoint = lookup.path; // use the absolute path
|
||
|
|
node = lookup.node;
|
||
|
|
|
||
|
|
if (FS.isMountpoint(node)) {
|
||
|
|
throw new FS.ErrnoError(10);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!FS.isDir(node.mode)) {
|
||
|
|
throw new FS.ErrnoError(54);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var mount = {
|
||
|
|
type,
|
||
|
|
opts,
|
||
|
|
mountpoint,
|
||
|
|
mounts: []
|
||
|
|
};
|
||
|
|
|
||
|
|
// create a root node for the fs
|
||
|
|
var mountRoot = type.mount(mount);
|
||
|
|
mountRoot.mount = mount;
|
||
|
|
mount.root = mountRoot;
|
||
|
|
|
||
|
|
if (root) {
|
||
|
|
FS.root = mountRoot;
|
||
|
|
} else if (node) {
|
||
|
|
// set as a mountpoint
|
||
|
|
node.mounted = mount;
|
||
|
|
|
||
|
|
// add the new mount to the current mount's children
|
||
|
|
if (node.mount) {
|
||
|
|
node.mount.mounts.push(mount);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return mountRoot;
|
||
|
|
},
|
||
|
|
unmount(mountpoint) {
|
||
|
|
var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
|
||
|
|
|
||
|
|
if (!FS.isMountpoint(lookup.node)) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
|
||
|
|
// destroy the nodes for this mount, and all its child mounts
|
||
|
|
var node = lookup.node;
|
||
|
|
var mount = node.mounted;
|
||
|
|
var mounts = FS.getMounts(mount);
|
||
|
|
|
||
|
|
for (var [hash, current] of Object.entries(FS.nameTable)) {
|
||
|
|
while (current) {
|
||
|
|
var next = current.name_next;
|
||
|
|
|
||
|
|
if (mounts.includes(current.mount)) {
|
||
|
|
FS.destroyNode(current);
|
||
|
|
}
|
||
|
|
|
||
|
|
current = next;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// no longer a mountpoint
|
||
|
|
node.mounted = null;
|
||
|
|
|
||
|
|
// remove this mount from the child mounts
|
||
|
|
var idx = node.mount.mounts.indexOf(mount);
|
||
|
|
node.mount.mounts.splice(idx, 1);
|
||
|
|
},
|
||
|
|
lookup(parent, name) {
|
||
|
|
return parent.node_ops.lookup(parent, name);
|
||
|
|
},
|
||
|
|
mknod(path, mode, dev) {
|
||
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
||
|
|
var parent = lookup.node;
|
||
|
|
var name = PATH.basename(path);
|
||
|
|
if (!name) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
if (name === '.' || name === '..') {
|
||
|
|
throw new FS.ErrnoError(20);
|
||
|
|
}
|
||
|
|
var errCode = FS.mayCreate(parent, name);
|
||
|
|
if (errCode) {
|
||
|
|
throw new FS.ErrnoError(errCode);
|
||
|
|
}
|
||
|
|
if (!parent.node_ops.mknod) {
|
||
|
|
throw new FS.ErrnoError(63);
|
||
|
|
}
|
||
|
|
return parent.node_ops.mknod(parent, name, mode, dev);
|
||
|
|
},
|
||
|
|
statfs(path) {
|
||
|
|
return FS.statfsNode(FS.lookupPath(path, {follow: true}).node);
|
||
|
|
},
|
||
|
|
statfsStream(stream) {
|
||
|
|
// We keep a separate statfsStream function because noderawfs overrides
|
||
|
|
// it. In noderawfs, stream.node is sometimes null. Instead, we need to
|
||
|
|
// look at stream.path.
|
||
|
|
return FS.statfsNode(stream.node);
|
||
|
|
},
|
||
|
|
statfsNode(node) {
|
||
|
|
// NOTE: None of the defaults here are true. We're just returning safe and
|
||
|
|
// sane values. Currently nodefs and rawfs replace these defaults,
|
||
|
|
// other file systems leave them alone.
|
||
|
|
var rtn = {
|
||
|
|
bsize: 4096,
|
||
|
|
frsize: 4096,
|
||
|
|
blocks: 1e6,
|
||
|
|
bfree: 5e5,
|
||
|
|
bavail: 5e5,
|
||
|
|
files: FS.nextInode,
|
||
|
|
ffree: FS.nextInode - 1,
|
||
|
|
fsid: 42,
|
||
|
|
flags: 2,
|
||
|
|
namelen: 255,
|
||
|
|
};
|
||
|
|
|
||
|
|
if (node.node_ops.statfs) {
|
||
|
|
Object.assign(rtn, node.node_ops.statfs(node.mount.opts.root));
|
||
|
|
}
|
||
|
|
return rtn;
|
||
|
|
},
|
||
|
|
create(path, mode = 0o666) {
|
||
|
|
mode &= 4095;
|
||
|
|
mode |= 32768;
|
||
|
|
return FS.mknod(path, mode, 0);
|
||
|
|
},
|
||
|
|
mkdir(path, mode = 0o777) {
|
||
|
|
mode &= 511 | 512;
|
||
|
|
mode |= 16384;
|
||
|
|
return FS.mknod(path, mode, 0);
|
||
|
|
},
|
||
|
|
mkdirTree(path, mode) {
|
||
|
|
var dirs = path.split('/');
|
||
|
|
var d = '';
|
||
|
|
for (var dir of dirs) {
|
||
|
|
if (!dir) continue;
|
||
|
|
if (d || PATH.isAbs(path)) d += '/';
|
||
|
|
d += dir;
|
||
|
|
try {
|
||
|
|
FS.mkdir(d, mode);
|
||
|
|
} catch(e) {
|
||
|
|
if (e.errno != 20) throw e;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
mkdev(path, mode, dev) {
|
||
|
|
if (typeof dev == 'undefined') {
|
||
|
|
dev = mode;
|
||
|
|
mode = 0o666;
|
||
|
|
}
|
||
|
|
mode |= 8192;
|
||
|
|
return FS.mknod(path, mode, dev);
|
||
|
|
},
|
||
|
|
symlink(oldpath, newpath) {
|
||
|
|
if (!PATH_FS.resolve(oldpath)) {
|
||
|
|
throw new FS.ErrnoError(44);
|
||
|
|
}
|
||
|
|
var lookup = FS.lookupPath(newpath, { parent: true });
|
||
|
|
var parent = lookup.node;
|
||
|
|
if (!parent) {
|
||
|
|
throw new FS.ErrnoError(44);
|
||
|
|
}
|
||
|
|
var newname = PATH.basename(newpath);
|
||
|
|
var errCode = FS.mayCreate(parent, newname);
|
||
|
|
if (errCode) {
|
||
|
|
throw new FS.ErrnoError(errCode);
|
||
|
|
}
|
||
|
|
if (!parent.node_ops.symlink) {
|
||
|
|
throw new FS.ErrnoError(63);
|
||
|
|
}
|
||
|
|
return parent.node_ops.symlink(parent, newname, oldpath);
|
||
|
|
},
|
||
|
|
rename(old_path, new_path) {
|
||
|
|
var old_dirname = PATH.dirname(old_path);
|
||
|
|
var new_dirname = PATH.dirname(new_path);
|
||
|
|
var old_name = PATH.basename(old_path);
|
||
|
|
var new_name = PATH.basename(new_path);
|
||
|
|
// parents must exist
|
||
|
|
var lookup, old_dir, new_dir;
|
||
|
|
|
||
|
|
// let the errors from non existent directories percolate up
|
||
|
|
lookup = FS.lookupPath(old_path, { parent: true });
|
||
|
|
old_dir = lookup.node;
|
||
|
|
lookup = FS.lookupPath(new_path, { parent: true });
|
||
|
|
new_dir = lookup.node;
|
||
|
|
|
||
|
|
if (!old_dir || !new_dir) throw new FS.ErrnoError(44);
|
||
|
|
// need to be part of the same mount
|
||
|
|
if (old_dir.mount !== new_dir.mount) {
|
||
|
|
throw new FS.ErrnoError(75);
|
||
|
|
}
|
||
|
|
// source must exist
|
||
|
|
var old_node = FS.lookupNode(old_dir, old_name);
|
||
|
|
// old path should not be an ancestor of the new path
|
||
|
|
var relative = PATH_FS.relative(old_path, new_dirname);
|
||
|
|
if (relative.charAt(0) !== '.') {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
// new path should not be an ancestor of the old path
|
||
|
|
relative = PATH_FS.relative(new_path, old_dirname);
|
||
|
|
if (relative.charAt(0) !== '.') {
|
||
|
|
throw new FS.ErrnoError(55);
|
||
|
|
}
|
||
|
|
// see if the new path already exists
|
||
|
|
var new_node;
|
||
|
|
try {
|
||
|
|
new_node = FS.lookupNode(new_dir, new_name);
|
||
|
|
} catch (e) {
|
||
|
|
// not fatal
|
||
|
|
}
|
||
|
|
// early out if nothing needs to change
|
||
|
|
if (old_node === new_node) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// we'll need to delete the old entry
|
||
|
|
var isdir = FS.isDir(old_node.mode);
|
||
|
|
var errCode = FS.mayDelete(old_dir, old_name, isdir);
|
||
|
|
if (errCode) {
|
||
|
|
throw new FS.ErrnoError(errCode);
|
||
|
|
}
|
||
|
|
// need delete permissions if we'll be overwriting.
|
||
|
|
// need create permissions if new doesn't already exist.
|
||
|
|
errCode = new_node ?
|
||
|
|
FS.mayDelete(new_dir, new_name, isdir) :
|
||
|
|
FS.mayCreate(new_dir, new_name);
|
||
|
|
if (errCode) {
|
||
|
|
throw new FS.ErrnoError(errCode);
|
||
|
|
}
|
||
|
|
if (!old_dir.node_ops.rename) {
|
||
|
|
throw new FS.ErrnoError(63);
|
||
|
|
}
|
||
|
|
if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
|
||
|
|
throw new FS.ErrnoError(10);
|
||
|
|
}
|
||
|
|
// if we are going to change the parent, check write permissions
|
||
|
|
if (new_dir !== old_dir) {
|
||
|
|
errCode = FS.nodePermissions(old_dir, 'w');
|
||
|
|
if (errCode) {
|
||
|
|
throw new FS.ErrnoError(errCode);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// remove the node from the lookup hash
|
||
|
|
FS.hashRemoveNode(old_node);
|
||
|
|
// do the underlying fs rename
|
||
|
|
try {
|
||
|
|
old_dir.node_ops.rename(old_node, new_dir, new_name);
|
||
|
|
// update old node (we do this here to avoid each backend
|
||
|
|
// needing to)
|
||
|
|
old_node.parent = new_dir;
|
||
|
|
} catch (e) {
|
||
|
|
throw e;
|
||
|
|
} finally {
|
||
|
|
// add the node back to the hash (in case node_ops.rename
|
||
|
|
// changed its name)
|
||
|
|
FS.hashAddNode(old_node);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
rmdir(path) {
|
||
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
||
|
|
var parent = lookup.node;
|
||
|
|
var name = PATH.basename(path);
|
||
|
|
var node = FS.lookupNode(parent, name);
|
||
|
|
var errCode = FS.mayDelete(parent, name, true);
|
||
|
|
if (errCode) {
|
||
|
|
throw new FS.ErrnoError(errCode);
|
||
|
|
}
|
||
|
|
if (!parent.node_ops.rmdir) {
|
||
|
|
throw new FS.ErrnoError(63);
|
||
|
|
}
|
||
|
|
if (FS.isMountpoint(node)) {
|
||
|
|
throw new FS.ErrnoError(10);
|
||
|
|
}
|
||
|
|
parent.node_ops.rmdir(parent, name);
|
||
|
|
FS.destroyNode(node);
|
||
|
|
},
|
||
|
|
readdir(path) {
|
||
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
||
|
|
var node = lookup.node;
|
||
|
|
var readdir = FS.checkOpExists(node.node_ops.readdir, 54);
|
||
|
|
return readdir(node);
|
||
|
|
},
|
||
|
|
unlink(path) {
|
||
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
||
|
|
var parent = lookup.node;
|
||
|
|
if (!parent) {
|
||
|
|
throw new FS.ErrnoError(44);
|
||
|
|
}
|
||
|
|
var name = PATH.basename(path);
|
||
|
|
var node = FS.lookupNode(parent, name);
|
||
|
|
var errCode = FS.mayDelete(parent, name, false);
|
||
|
|
if (errCode) {
|
||
|
|
// According to POSIX, we should map EISDIR to EPERM, but
|
||
|
|
// we instead do what Linux does (and we must, as we use
|
||
|
|
// the musl linux libc).
|
||
|
|
throw new FS.ErrnoError(errCode);
|
||
|
|
}
|
||
|
|
if (!parent.node_ops.unlink) {
|
||
|
|
throw new FS.ErrnoError(63);
|
||
|
|
}
|
||
|
|
if (FS.isMountpoint(node)) {
|
||
|
|
throw new FS.ErrnoError(10);
|
||
|
|
}
|
||
|
|
parent.node_ops.unlink(parent, name);
|
||
|
|
FS.destroyNode(node);
|
||
|
|
},
|
||
|
|
readlink(path) {
|
||
|
|
var lookup = FS.lookupPath(path);
|
||
|
|
var link = lookup.node;
|
||
|
|
if (!link) {
|
||
|
|
throw new FS.ErrnoError(44);
|
||
|
|
}
|
||
|
|
if (!link.node_ops.readlink) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
return link.node_ops.readlink(link);
|
||
|
|
},
|
||
|
|
stat(path, dontFollow) {
|
||
|
|
var lookup = FS.lookupPath(path, { follow: !dontFollow });
|
||
|
|
var node = lookup.node;
|
||
|
|
var getattr = FS.checkOpExists(node.node_ops.getattr, 63);
|
||
|
|
return getattr(node);
|
||
|
|
},
|
||
|
|
fstat(fd) {
|
||
|
|
var stream = FS.getStreamChecked(fd);
|
||
|
|
var node = stream.node;
|
||
|
|
var getattr = stream.stream_ops.getattr;
|
||
|
|
var arg = getattr ? stream : node;
|
||
|
|
getattr ??= node.node_ops.getattr;
|
||
|
|
FS.checkOpExists(getattr, 63)
|
||
|
|
return getattr(arg);
|
||
|
|
},
|
||
|
|
lstat(path) {
|
||
|
|
return FS.stat(path, true);
|
||
|
|
},
|
||
|
|
doChmod(stream, node, mode, dontFollow) {
|
||
|
|
FS.doSetAttr(stream, node, {
|
||
|
|
mode: (mode & 4095) | (node.mode & ~4095),
|
||
|
|
ctime: Date.now(),
|
||
|
|
dontFollow
|
||
|
|
});
|
||
|
|
},
|
||
|
|
chmod(path, mode, dontFollow) {
|
||
|
|
var node;
|
||
|
|
if (typeof path == 'string') {
|
||
|
|
var lookup = FS.lookupPath(path, { follow: !dontFollow });
|
||
|
|
node = lookup.node;
|
||
|
|
} else {
|
||
|
|
node = path;
|
||
|
|
}
|
||
|
|
FS.doChmod(null, node, mode, dontFollow);
|
||
|
|
},
|
||
|
|
lchmod(path, mode) {
|
||
|
|
FS.chmod(path, mode, true);
|
||
|
|
},
|
||
|
|
fchmod(fd, mode) {
|
||
|
|
var stream = FS.getStreamChecked(fd);
|
||
|
|
FS.doChmod(stream, stream.node, mode, false);
|
||
|
|
},
|
||
|
|
doChown(stream, node, dontFollow) {
|
||
|
|
FS.doSetAttr(stream, node, {
|
||
|
|
timestamp: Date.now(),
|
||
|
|
dontFollow
|
||
|
|
// we ignore the uid / gid for now
|
||
|
|
});
|
||
|
|
},
|
||
|
|
chown(path, uid, gid, dontFollow) {
|
||
|
|
var node;
|
||
|
|
if (typeof path == 'string') {
|
||
|
|
var lookup = FS.lookupPath(path, { follow: !dontFollow });
|
||
|
|
node = lookup.node;
|
||
|
|
} else {
|
||
|
|
node = path;
|
||
|
|
}
|
||
|
|
FS.doChown(null, node, dontFollow);
|
||
|
|
},
|
||
|
|
lchown(path, uid, gid) {
|
||
|
|
FS.chown(path, uid, gid, true);
|
||
|
|
},
|
||
|
|
fchown(fd, uid, gid) {
|
||
|
|
var stream = FS.getStreamChecked(fd);
|
||
|
|
FS.doChown(stream, stream.node, false);
|
||
|
|
},
|
||
|
|
doTruncate(stream, node, len) {
|
||
|
|
if (FS.isDir(node.mode)) {
|
||
|
|
throw new FS.ErrnoError(31);
|
||
|
|
}
|
||
|
|
if (!FS.isFile(node.mode)) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
var errCode = FS.nodePermissions(node, 'w');
|
||
|
|
if (errCode) {
|
||
|
|
throw new FS.ErrnoError(errCode);
|
||
|
|
}
|
||
|
|
FS.doSetAttr(stream, node, {
|
||
|
|
size: len,
|
||
|
|
timestamp: Date.now()
|
||
|
|
});
|
||
|
|
},
|
||
|
|
truncate(path, len) {
|
||
|
|
if (len < 0) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
var node;
|
||
|
|
if (typeof path == 'string') {
|
||
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
||
|
|
node = lookup.node;
|
||
|
|
} else {
|
||
|
|
node = path;
|
||
|
|
}
|
||
|
|
FS.doTruncate(null, node, len);
|
||
|
|
},
|
||
|
|
ftruncate(fd, len) {
|
||
|
|
var stream = FS.getStreamChecked(fd);
|
||
|
|
if (len < 0 || (stream.flags & 2097155) === 0) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
FS.doTruncate(stream, stream.node, len);
|
||
|
|
},
|
||
|
|
utime(path, atime, mtime) {
|
||
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
||
|
|
var node = lookup.node;
|
||
|
|
var setattr = FS.checkOpExists(node.node_ops.setattr, 63);
|
||
|
|
setattr(node, {
|
||
|
|
atime: atime,
|
||
|
|
mtime: mtime
|
||
|
|
});
|
||
|
|
},
|
||
|
|
open(path, flags, mode = 0o666) {
|
||
|
|
if (path === "") {
|
||
|
|
throw new FS.ErrnoError(44);
|
||
|
|
}
|
||
|
|
flags = typeof flags == 'string' ? FS_modeStringToFlags(flags) : flags;
|
||
|
|
if ((flags & 64)) {
|
||
|
|
mode = (mode & 4095) | 32768;
|
||
|
|
} else {
|
||
|
|
mode = 0;
|
||
|
|
}
|
||
|
|
var node;
|
||
|
|
var isDirPath;
|
||
|
|
if (typeof path == 'object') {
|
||
|
|
node = path;
|
||
|
|
} else {
|
||
|
|
isDirPath = path.endsWith("/");
|
||
|
|
// noent_okay makes it so that if the final component of the path
|
||
|
|
// doesn't exist, lookupPath returns `node: undefined`. `path` will be
|
||
|
|
// updated to point to the target of all symlinks.
|
||
|
|
var lookup = FS.lookupPath(path, {
|
||
|
|
follow: !(flags & 131072),
|
||
|
|
noent_okay: true
|
||
|
|
});
|
||
|
|
node = lookup.node;
|
||
|
|
path = lookup.path;
|
||
|
|
}
|
||
|
|
// perhaps we need to create the node
|
||
|
|
var created = false;
|
||
|
|
if ((flags & 64)) {
|
||
|
|
if (node) {
|
||
|
|
// if O_CREAT and O_EXCL are set, error out if the node already exists
|
||
|
|
if ((flags & 128)) {
|
||
|
|
throw new FS.ErrnoError(20);
|
||
|
|
}
|
||
|
|
} else if (isDirPath) {
|
||
|
|
throw new FS.ErrnoError(31);
|
||
|
|
} else {
|
||
|
|
// node doesn't exist, try to create it
|
||
|
|
// Ignore the permission bits here to ensure we can `open` this new
|
||
|
|
// file below. We use chmod below the apply the permissions once the
|
||
|
|
// file is open.
|
||
|
|
node = FS.mknod(path, mode | 0o777, 0);
|
||
|
|
created = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!node) {
|
||
|
|
throw new FS.ErrnoError(44);
|
||
|
|
}
|
||
|
|
// can't truncate a device
|
||
|
|
if (FS.isChrdev(node.mode)) {
|
||
|
|
flags &= ~512;
|
||
|
|
}
|
||
|
|
// if asked only for a directory, then this must be one
|
||
|
|
if ((flags & 65536) && !FS.isDir(node.mode)) {
|
||
|
|
throw new FS.ErrnoError(54);
|
||
|
|
}
|
||
|
|
// check permissions, if this is not a file we just created now (it is ok to
|
||
|
|
// create and write to a file with read-only permissions; it is read-only
|
||
|
|
// for later use)
|
||
|
|
if (!created) {
|
||
|
|
var errCode = FS.mayOpen(node, flags);
|
||
|
|
if (errCode) {
|
||
|
|
throw new FS.ErrnoError(errCode);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// do truncation if necessary
|
||
|
|
if ((flags & 512) && !created) {
|
||
|
|
FS.truncate(node, 0);
|
||
|
|
}
|
||
|
|
// we've already handled these, don't pass down to the underlying vfs
|
||
|
|
flags &= ~(128 | 512 | 131072);
|
||
|
|
|
||
|
|
// register the stream with the filesystem
|
||
|
|
var stream = FS.createStream({
|
||
|
|
node,
|
||
|
|
path: FS.getPath(node), // we want the absolute path to the node
|
||
|
|
flags,
|
||
|
|
seekable: true,
|
||
|
|
position: 0,
|
||
|
|
stream_ops: node.stream_ops,
|
||
|
|
// used by the file family libc calls (fopen, fwrite, ferror, etc.)
|
||
|
|
ungotten: [],
|
||
|
|
error: false
|
||
|
|
});
|
||
|
|
// call the new stream's open function
|
||
|
|
if (stream.stream_ops.open) {
|
||
|
|
stream.stream_ops.open(stream);
|
||
|
|
}
|
||
|
|
if (created) {
|
||
|
|
FS.chmod(node, mode & 0o777);
|
||
|
|
}
|
||
|
|
if (Module['logReadFiles'] && !(flags & 1)) {
|
||
|
|
if (!(path in FS.readFiles)) {
|
||
|
|
FS.readFiles[path] = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return stream;
|
||
|
|
},
|
||
|
|
close(stream) {
|
||
|
|
if (FS.isClosed(stream)) {
|
||
|
|
throw new FS.ErrnoError(8);
|
||
|
|
}
|
||
|
|
if (stream.getdents) stream.getdents = null; // free readdir state
|
||
|
|
try {
|
||
|
|
if (stream.stream_ops.close) {
|
||
|
|
stream.stream_ops.close(stream);
|
||
|
|
}
|
||
|
|
} catch (e) {
|
||
|
|
throw e;
|
||
|
|
} finally {
|
||
|
|
FS.closeStream(stream.fd);
|
||
|
|
}
|
||
|
|
stream.fd = null;
|
||
|
|
},
|
||
|
|
isClosed(stream) {
|
||
|
|
return stream.fd === null;
|
||
|
|
},
|
||
|
|
llseek(stream, offset, whence) {
|
||
|
|
if (FS.isClosed(stream)) {
|
||
|
|
throw new FS.ErrnoError(8);
|
||
|
|
}
|
||
|
|
if (!stream.seekable || !stream.stream_ops.llseek) {
|
||
|
|
throw new FS.ErrnoError(70);
|
||
|
|
}
|
||
|
|
if (whence != 0 && whence != 1 && whence != 2) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
stream.position = stream.stream_ops.llseek(stream, offset, whence);
|
||
|
|
stream.ungotten = [];
|
||
|
|
return stream.position;
|
||
|
|
},
|
||
|
|
read(stream, buffer, offset, length, position) {
|
||
|
|
if (length < 0 || position < 0) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
if (FS.isClosed(stream)) {
|
||
|
|
throw new FS.ErrnoError(8);
|
||
|
|
}
|
||
|
|
if ((stream.flags & 2097155) === 1) {
|
||
|
|
throw new FS.ErrnoError(8);
|
||
|
|
}
|
||
|
|
if (FS.isDir(stream.node.mode)) {
|
||
|
|
throw new FS.ErrnoError(31);
|
||
|
|
}
|
||
|
|
if (!stream.stream_ops.read) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
var seeking = typeof position != 'undefined';
|
||
|
|
if (!seeking) {
|
||
|
|
position = stream.position;
|
||
|
|
} else if (!stream.seekable) {
|
||
|
|
throw new FS.ErrnoError(70);
|
||
|
|
}
|
||
|
|
var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position);
|
||
|
|
if (!seeking) stream.position += bytesRead;
|
||
|
|
return bytesRead;
|
||
|
|
},
|
||
|
|
write(stream, buffer, offset, length, position, canOwn) {
|
||
|
|
if (length < 0 || position < 0) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
if (FS.isClosed(stream)) {
|
||
|
|
throw new FS.ErrnoError(8);
|
||
|
|
}
|
||
|
|
if ((stream.flags & 2097155) === 0) {
|
||
|
|
throw new FS.ErrnoError(8);
|
||
|
|
}
|
||
|
|
if (FS.isDir(stream.node.mode)) {
|
||
|
|
throw new FS.ErrnoError(31);
|
||
|
|
}
|
||
|
|
if (!stream.stream_ops.write) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
if (stream.seekable && stream.flags & 1024) {
|
||
|
|
// seek to the end before writing in append mode
|
||
|
|
FS.llseek(stream, 0, 2);
|
||
|
|
}
|
||
|
|
var seeking = typeof position != 'undefined';
|
||
|
|
if (!seeking) {
|
||
|
|
position = stream.position;
|
||
|
|
} else if (!stream.seekable) {
|
||
|
|
throw new FS.ErrnoError(70);
|
||
|
|
}
|
||
|
|
var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
|
||
|
|
if (!seeking) stream.position += bytesWritten;
|
||
|
|
return bytesWritten;
|
||
|
|
},
|
||
|
|
mmap(stream, length, position, prot, flags) {
|
||
|
|
// User requests writing to file (prot & PROT_WRITE != 0).
|
||
|
|
// Checking if we have permissions to write to the file unless
|
||
|
|
// MAP_PRIVATE flag is set. According to POSIX spec it is possible
|
||
|
|
// to write to file opened in read-only mode with MAP_PRIVATE flag,
|
||
|
|
// as all modifications will be visible only in the memory of
|
||
|
|
// the current process.
|
||
|
|
if ((prot & 2) !== 0
|
||
|
|
&& (flags & 2) === 0
|
||
|
|
&& (stream.flags & 2097155) !== 2) {
|
||
|
|
throw new FS.ErrnoError(2);
|
||
|
|
}
|
||
|
|
if ((stream.flags & 2097155) === 1) {
|
||
|
|
throw new FS.ErrnoError(2);
|
||
|
|
}
|
||
|
|
if (!stream.stream_ops.mmap) {
|
||
|
|
throw new FS.ErrnoError(43);
|
||
|
|
}
|
||
|
|
if (!length) {
|
||
|
|
throw new FS.ErrnoError(28);
|
||
|
|
}
|
||
|
|
return stream.stream_ops.mmap(stream, length, position, prot, flags);
|
||
|
|
},
|
||
|
|
msync(stream, buffer, offset, length, mmapFlags) {
|
||
|
|
if (!stream.stream_ops.msync) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
|
||
|
|
},
|
||
|
|
ioctl(stream, cmd, arg) {
|
||
|
|
if (!stream.stream_ops.ioctl) {
|
||
|
|
throw new FS.ErrnoError(59);
|
||
|
|
}
|
||
|
|
return stream.stream_ops.ioctl(stream, cmd, arg);
|
||
|
|
},
|
||
|
|
readFile(path, opts = {}) {
|
||
|
|
opts.flags = opts.flags || 0;
|
||
|
|
opts.encoding = opts.encoding || 'binary';
|
||
|
|
if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
|
||
|
|
abort(`Invalid encoding type "${opts.encoding}"`);
|
||
|
|
}
|
||
|
|
var stream = FS.open(path, opts.flags);
|
||
|
|
var stat = FS.stat(path);
|
||
|
|
var length = stat.size;
|
||
|
|
var buf = new Uint8Array(length);
|
||
|
|
FS.read(stream, buf, 0, length, 0);
|
||
|
|
if (opts.encoding === 'utf8') {
|
||
|
|
buf = UTF8ArrayToString(buf);
|
||
|
|
}
|
||
|
|
FS.close(stream);
|
||
|
|
return buf;
|
||
|
|
},
|
||
|
|
writeFile(path, data, opts = {}) {
|
||
|
|
opts.flags = opts.flags || 577;
|
||
|
|
var stream = FS.open(path, opts.flags, opts.mode);
|
||
|
|
if (typeof data == 'string') {
|
||
|
|
data = new Uint8Array(intArrayFromString(data, true));
|
||
|
|
}
|
||
|
|
if (ArrayBuffer.isView(data)) {
|
||
|
|
FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn);
|
||
|
|
} else {
|
||
|
|
abort('Unsupported data type');
|
||
|
|
}
|
||
|
|
FS.close(stream);
|
||
|
|
},
|
||
|
|
cwd:() => FS.currentPath,
|
||
|
|
chdir(path) {
|
||
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
||
|
|
if (lookup.node === null) {
|
||
|
|
throw new FS.ErrnoError(44);
|
||
|
|
}
|
||
|
|
if (!FS.isDir(lookup.node.mode)) {
|
||
|
|
throw new FS.ErrnoError(54);
|
||
|
|
}
|
||
|
|
var errCode = FS.nodePermissions(lookup.node, 'x');
|
||
|
|
if (errCode) {
|
||
|
|
throw new FS.ErrnoError(errCode);
|
||
|
|
}
|
||
|
|
FS.currentPath = lookup.path;
|
||
|
|
},
|
||
|
|
createDefaultDirectories() {
|
||
|
|
FS.mkdir('/tmp');
|
||
|
|
FS.mkdir('/home');
|
||
|
|
FS.mkdir('/home/web_user');
|
||
|
|
},
|
||
|
|
createDefaultDevices() {
|
||
|
|
// create /dev
|
||
|
|
FS.mkdir('/dev');
|
||
|
|
// setup /dev/null
|
||
|
|
FS.registerDevice(FS.makedev(1, 3), {
|
||
|
|
read: () => 0,
|
||
|
|
write: (stream, buffer, offset, length, pos) => length,
|
||
|
|
llseek: () => 0,
|
||
|
|
});
|
||
|
|
FS.mkdev('/dev/null', FS.makedev(1, 3));
|
||
|
|
// setup /dev/tty and /dev/tty1
|
||
|
|
// stderr needs to print output using err() rather than out()
|
||
|
|
// so we register a second tty just for it.
|
||
|
|
TTY.register(FS.makedev(5, 0), TTY.default_tty_ops);
|
||
|
|
TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops);
|
||
|
|
FS.mkdev('/dev/tty', FS.makedev(5, 0));
|
||
|
|
FS.mkdev('/dev/tty1', FS.makedev(6, 0));
|
||
|
|
// setup /dev/[u]random
|
||
|
|
// use a buffer to avoid overhead of individual crypto calls per byte
|
||
|
|
var randomBuffer = new Uint8Array(1024), randomLeft = 0;
|
||
|
|
var randomByte = () => {
|
||
|
|
if (randomLeft === 0) {
|
||
|
|
randomFill(randomBuffer);
|
||
|
|
randomLeft = randomBuffer.byteLength;
|
||
|
|
}
|
||
|
|
return randomBuffer[--randomLeft];
|
||
|
|
};
|
||
|
|
FS.createDevice('/dev', 'random', randomByte);
|
||
|
|
FS.createDevice('/dev', 'urandom', randomByte);
|
||
|
|
// we're not going to emulate the actual shm device,
|
||
|
|
// just create the tmp dirs that reside in it commonly
|
||
|
|
FS.mkdir('/dev/shm');
|
||
|
|
FS.mkdir('/dev/shm/tmp');
|
||
|
|
},
|
||
|
|
createSpecialDirectories() {
|
||
|
|
// create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the
|
||
|
|
// name of the stream for fd 6 (see test_unistd_ttyname)
|
||
|
|
FS.mkdir('/proc');
|
||
|
|
var proc_self = FS.mkdir('/proc/self');
|
||
|
|
FS.mkdir('/proc/self/fd');
|
||
|
|
FS.mount({
|
||
|
|
mount() {
|
||
|
|
var node = FS.createNode(proc_self, 'fd', 16895, 73);
|
||
|
|
node.stream_ops = {
|
||
|
|
llseek: MEMFS.stream_ops.llseek,
|
||
|
|
};
|
||
|
|
node.node_ops = {
|
||
|
|
lookup(parent, name) {
|
||
|
|
var fd = +name;
|
||
|
|
var stream = FS.getStreamChecked(fd);
|
||
|
|
var ret = {
|
||
|
|
parent: null,
|
||
|
|
mount: { mountpoint: 'fake' },
|
||
|
|
node_ops: { readlink: () => stream.path },
|
||
|
|
id: fd + 1,
|
||
|
|
};
|
||
|
|
ret.parent = ret; // make it look like a simple root node
|
||
|
|
return ret;
|
||
|
|
},
|
||
|
|
readdir() {
|
||
|
|
return Array.from(FS.streams.entries())
|
||
|
|
.filter(([k, v]) => v)
|
||
|
|
.map(([k, v]) => k.toString());
|
||
|
|
}
|
||
|
|
};
|
||
|
|
return node;
|
||
|
|
}
|
||
|
|
}, {}, '/proc/self/fd');
|
||
|
|
},
|
||
|
|
createStandardStreams(input, output, error) {
|
||
|
|
// TODO deprecate the old functionality of a single
|
||
|
|
// input / output callback and that utilizes FS.createDevice
|
||
|
|
// and instead require a unique set of stream ops
|
||
|
|
|
||
|
|
// by default, we symlink the standard streams to the
|
||
|
|
// default tty devices. however, if the standard streams
|
||
|
|
// have been overwritten we create a unique device for
|
||
|
|
// them instead.
|
||
|
|
if (input) {
|
||
|
|
FS.createDevice('/dev', 'stdin', input);
|
||
|
|
} else {
|
||
|
|
FS.symlink('/dev/tty', '/dev/stdin');
|
||
|
|
}
|
||
|
|
if (output) {
|
||
|
|
FS.createDevice('/dev', 'stdout', null, output);
|
||
|
|
} else {
|
||
|
|
FS.symlink('/dev/tty', '/dev/stdout');
|
||
|
|
}
|
||
|
|
if (error) {
|
||
|
|
FS.createDevice('/dev', 'stderr', null, error);
|
||
|
|
} else {
|
||
|
|
FS.symlink('/dev/tty1', '/dev/stderr');
|
||
|
|
}
|
||
|
|
|
||
|
|
// open default streams for the stdin, stdout and stderr devices
|
||
|
|
var stdin = FS.open('/dev/stdin', 0);
|
||
|
|
var stdout = FS.open('/dev/stdout', 1);
|
||
|
|
var stderr = FS.open('/dev/stderr', 1);
|
||
|
|
},
|
||
|
|
staticInit() {
|
||
|
|
FS.nameTable = new Array(4096);
|
||
|
|
|
||
|
|
FS.mount(MEMFS, {}, '/');
|
||
|
|
|
||
|
|
FS.createDefaultDirectories();
|
||
|
|
FS.createDefaultDevices();
|
||
|
|
FS.createSpecialDirectories();
|
||
|
|
|
||
|
|
FS.filesystems = {
|
||
|
|
'MEMFS': MEMFS,
|
||
|
|
};
|
||
|
|
},
|
||
|
|
init(input, output, error) {
|
||
|
|
FS.initialized = true;
|
||
|
|
|
||
|
|
// Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
|
||
|
|
input ??= Module['stdin'];
|
||
|
|
output ??= Module['stdout'];
|
||
|
|
error ??= Module['stderr'];
|
||
|
|
|
||
|
|
FS.createStandardStreams(input, output, error);
|
||
|
|
},
|
||
|
|
quit() {
|
||
|
|
FS.initialized = false;
|
||
|
|
// force-flush all streams, so we get musl std streams printed out
|
||
|
|
// close all of our streams
|
||
|
|
for (var stream of FS.streams) {
|
||
|
|
if (stream) {
|
||
|
|
FS.close(stream);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
findObject(path, dontResolveLastLink) {
|
||
|
|
var ret = FS.analyzePath(path, dontResolveLastLink);
|
||
|
|
if (!ret.exists) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
return ret.object;
|
||
|
|
},
|
||
|
|
analyzePath(path, dontResolveLastLink) {
|
||
|
|
// operate from within the context of the symlink's target
|
||
|
|
try {
|
||
|
|
var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
|
||
|
|
path = lookup.path;
|
||
|
|
} catch (e) {
|
||
|
|
}
|
||
|
|
var ret = {
|
||
|
|
isRoot: false, exists: false, error: 0, name: null, path: null, object: null,
|
||
|
|
parentExists: false, parentPath: null, parentObject: null
|
||
|
|
};
|
||
|
|
try {
|
||
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
||
|
|
ret.parentExists = true;
|
||
|
|
ret.parentPath = lookup.path;
|
||
|
|
ret.parentObject = lookup.node;
|
||
|
|
ret.name = PATH.basename(path);
|
||
|
|
lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
|
||
|
|
ret.exists = true;
|
||
|
|
ret.path = lookup.path;
|
||
|
|
ret.object = lookup.node;
|
||
|
|
ret.name = lookup.node.name;
|
||
|
|
ret.isRoot = lookup.path === '/';
|
||
|
|
} catch (e) {
|
||
|
|
ret.error = e.errno;
|
||
|
|
};
|
||
|
|
return ret;
|
||
|
|
},
|
||
|
|
createPath(parent, path, canRead, canWrite) {
|
||
|
|
parent = typeof parent == 'string' ? parent : FS.getPath(parent);
|
||
|
|
var parts = path.split('/').reverse();
|
||
|
|
while (parts.length) {
|
||
|
|
var part = parts.pop();
|
||
|
|
if (!part) continue;
|
||
|
|
var current = PATH.join2(parent, part);
|
||
|
|
try {
|
||
|
|
FS.mkdir(current);
|
||
|
|
} catch (e) {
|
||
|
|
if (e.errno != 20) throw e;
|
||
|
|
}
|
||
|
|
parent = current;
|
||
|
|
}
|
||
|
|
return current;
|
||
|
|
},
|
||
|
|
createFile(parent, name, properties, canRead, canWrite) {
|
||
|
|
var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name);
|
||
|
|
var mode = FS_getMode(canRead, canWrite);
|
||
|
|
return FS.create(path, mode);
|
||
|
|
},
|
||
|
|
createDataFile(parent, name, data, canRead, canWrite, canOwn) {
|
||
|
|
var path = name;
|
||
|
|
if (parent) {
|
||
|
|
parent = typeof parent == 'string' ? parent : FS.getPath(parent);
|
||
|
|
path = name ? PATH.join2(parent, name) : parent;
|
||
|
|
}
|
||
|
|
var mode = FS_getMode(canRead, canWrite);
|
||
|
|
var node = FS.create(path, mode);
|
||
|
|
if (data) {
|
||
|
|
if (typeof data == 'string') {
|
||
|
|
var arr = new Array(data.length);
|
||
|
|
for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
|
||
|
|
data = arr;
|
||
|
|
}
|
||
|
|
// make sure we can write to the file
|
||
|
|
FS.chmod(node, mode | 146);
|
||
|
|
var stream = FS.open(node, 577);
|
||
|
|
FS.write(stream, data, 0, data.length, 0, canOwn);
|
||
|
|
FS.close(stream);
|
||
|
|
FS.chmod(node, mode);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
createDevice(parent, name, input, output) {
|
||
|
|
var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name);
|
||
|
|
var mode = FS_getMode(!!input, !!output);
|
||
|
|
FS.createDevice.major ??= 64;
|
||
|
|
var dev = FS.makedev(FS.createDevice.major++, 0);
|
||
|
|
// Create a fake device that a set of stream ops to emulate
|
||
|
|
// the old behavior.
|
||
|
|
FS.registerDevice(dev, {
|
||
|
|
open(stream) {
|
||
|
|
stream.seekable = false;
|
||
|
|
},
|
||
|
|
close(stream) {
|
||
|
|
// flush any pending line data
|
||
|
|
if (output?.buffer?.length) {
|
||
|
|
output(10);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
read(stream, buffer, offset, length, pos /* ignored */) {
|
||
|
|
var bytesRead = 0;
|
||
|
|
for (var i = 0; i < length; i++) {
|
||
|
|
var result;
|
||
|
|
try {
|
||
|
|
result = input();
|
||
|
|
} catch (e) {
|
||
|
|
throw new FS.ErrnoError(29);
|
||
|
|
}
|
||
|
|
if (result === undefined && bytesRead === 0) {
|
||
|
|
throw new FS.ErrnoError(6);
|
||
|
|
}
|
||
|
|
if (result === null || result === undefined) break;
|
||
|
|
bytesRead++;
|
||
|
|
buffer[offset+i] = result;
|
||
|
|
}
|
||
|
|
if (bytesRead) {
|
||
|
|
stream.node.atime = Date.now();
|
||
|
|
}
|
||
|
|
return bytesRead;
|
||
|
|
},
|
||
|
|
write(stream, buffer, offset, length, pos) {
|
||
|
|
for (var i = 0; i < length; i++) {
|
||
|
|
try {
|
||
|
|
output(buffer[offset+i]);
|
||
|
|
} catch (e) {
|
||
|
|
throw new FS.ErrnoError(29);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (length) {
|
||
|
|
stream.node.mtime = stream.node.ctime = Date.now();
|
||
|
|
}
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
return FS.mkdev(path, mode, dev);
|
||
|
|
},
|
||
|
|
forceLoadFile(obj) {
|
||
|
|
if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
|
||
|
|
if (globalThis.XMLHttpRequest) {
|
||
|
|
abort("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");
|
||
|
|
} else { // Command-line.
|
||
|
|
try {
|
||
|
|
obj.contents = readBinary(obj.url);
|
||
|
|
} catch (e) {
|
||
|
|
throw new FS.ErrnoError(29);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
createLazyFile(parent, name, url, canRead, canWrite) {
|
||
|
|
// Lazy chunked Uint8Array (implements get and length from Uint8Array).
|
||
|
|
// Actual getting is abstracted away for eventual reuse.
|
||
|
|
class LazyUint8Array {
|
||
|
|
lengthKnown = false;
|
||
|
|
chunks = []; // Loaded chunks. Index is the chunk number
|
||
|
|
get(idx) {
|
||
|
|
if (idx > this.length-1 || idx < 0) {
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
var chunkOffset = idx % this.chunkSize;
|
||
|
|
var chunkNum = (idx / this.chunkSize)|0;
|
||
|
|
return this.getter(chunkNum)[chunkOffset];
|
||
|
|
}
|
||
|
|
setDataGetter(getter) {
|
||
|
|
this.getter = getter;
|
||
|
|
}
|
||
|
|
cacheLength() {
|
||
|
|
// Find length
|
||
|
|
var xhr = new XMLHttpRequest();
|
||
|
|
xhr.open('HEAD', url, false);
|
||
|
|
xhr.send(null);
|
||
|
|
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) abort("Couldn't load " + url + ". Status: " + xhr.status);
|
||
|
|
var datalength = Number(xhr.getResponseHeader("Content-length"));
|
||
|
|
var header;
|
||
|
|
var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes";
|
||
|
|
var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip";
|
||
|
|
|
||
|
|
var chunkSize = 1024*1024; // Chunk size in bytes
|
||
|
|
|
||
|
|
if (!hasByteServing) chunkSize = datalength;
|
||
|
|
|
||
|
|
// Function to get a range from the remote URL.
|
||
|
|
var doXHR = (from, to) => {
|
||
|
|
if (from > to) abort("invalid range (" + from + ", " + to + ") or no bytes requested!");
|
||
|
|
if (to > datalength-1) abort("only " + datalength + " bytes available! programmer error!");
|
||
|
|
|
||
|
|
// TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
|
||
|
|
var xhr = new XMLHttpRequest();
|
||
|
|
xhr.open('GET', url, false);
|
||
|
|
if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
|
||
|
|
|
||
|
|
// Some hints to the browser that we want binary data.
|
||
|
|
xhr.responseType = 'arraybuffer';
|
||
|
|
if (xhr.overrideMimeType) {
|
||
|
|
xhr.overrideMimeType('text/plain; charset=x-user-defined');
|
||
|
|
}
|
||
|
|
|
||
|
|
xhr.send(null);
|
||
|
|
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) abort("Couldn't load " + url + ". Status: " + xhr.status);
|
||
|
|
if (xhr.response !== undefined) {
|
||
|
|
return new Uint8Array(/** @type{Array<number>} */(xhr.response || []));
|
||
|
|
}
|
||
|
|
return intArrayFromString(xhr.responseText || '', true);
|
||
|
|
};
|
||
|
|
var lazyArray = this;
|
||
|
|
lazyArray.setDataGetter((chunkNum) => {
|
||
|
|
var start = chunkNum * chunkSize;
|
||
|
|
var end = (chunkNum+1) * chunkSize - 1; // including this byte
|
||
|
|
end = Math.min(end, datalength-1); // if datalength-1 is selected, this is the last block
|
||
|
|
if (typeof lazyArray.chunks[chunkNum] == 'undefined') {
|
||
|
|
lazyArray.chunks[chunkNum] = doXHR(start, end);
|
||
|
|
}
|
||
|
|
if (typeof lazyArray.chunks[chunkNum] == 'undefined') abort('doXHR failed!');
|
||
|
|
return lazyArray.chunks[chunkNum];
|
||
|
|
});
|
||
|
|
|
||
|
|
if (usesGzip || !datalength) {
|
||
|
|
// if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length
|
||
|
|
chunkSize = datalength = 1; // this will force getter(0)/doXHR do download the whole file
|
||
|
|
datalength = this.getter(0).length;
|
||
|
|
chunkSize = datalength;
|
||
|
|
out("LazyFiles on gzip forces download of the whole file when length is accessed");
|
||
|
|
}
|
||
|
|
|
||
|
|
this._length = datalength;
|
||
|
|
this._chunkSize = chunkSize;
|
||
|
|
this.lengthKnown = true;
|
||
|
|
}
|
||
|
|
get length() {
|
||
|
|
if (!this.lengthKnown) {
|
||
|
|
this.cacheLength();
|
||
|
|
}
|
||
|
|
return this._length;
|
||
|
|
}
|
||
|
|
get chunkSize() {
|
||
|
|
if (!this.lengthKnown) {
|
||
|
|
this.cacheLength();
|
||
|
|
}
|
||
|
|
return this._chunkSize;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (globalThis.XMLHttpRequest) {
|
||
|
|
if (!ENVIRONMENT_IS_WORKER) abort('Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc');
|
||
|
|
var lazyArray = new LazyUint8Array();
|
||
|
|
var properties = { isDevice: false, contents: lazyArray };
|
||
|
|
} else {
|
||
|
|
var properties = { isDevice: false, url: url };
|
||
|
|
}
|
||
|
|
|
||
|
|
var node = FS.createFile(parent, name, properties, canRead, canWrite);
|
||
|
|
// This is a total hack, but I want to get this lazy file code out of the
|
||
|
|
// core of MEMFS. If we want to keep this lazy file concept I feel it should
|
||
|
|
// be its own thin LAZYFS proxying calls to MEMFS.
|
||
|
|
if (properties.contents) {
|
||
|
|
node.contents = properties.contents;
|
||
|
|
} else if (properties.url) {
|
||
|
|
node.contents = null;
|
||
|
|
node.url = properties.url;
|
||
|
|
}
|
||
|
|
// Add a function that defers querying the file size until it is asked the first time.
|
||
|
|
Object.defineProperties(node, {
|
||
|
|
usedBytes: {
|
||
|
|
get: function() { return this.contents.length; }
|
||
|
|
}
|
||
|
|
});
|
||
|
|
// override each stream op with one that tries to force load the lazy file first
|
||
|
|
var stream_ops = {};
|
||
|
|
for (const [key, fn] of Object.entries(node.stream_ops)) {
|
||
|
|
stream_ops[key] = (...args) => {
|
||
|
|
FS.forceLoadFile(node);
|
||
|
|
return fn(...args);
|
||
|
|
};
|
||
|
|
}
|
||
|
|
function writeChunks(stream, buffer, offset, length, position) {
|
||
|
|
var contents = stream.node.contents;
|
||
|
|
if (position >= contents.length)
|
||
|
|
return 0;
|
||
|
|
var size = Math.min(contents.length - position, length);
|
||
|
|
if (contents.slice) { // normal array
|
||
|
|
for (var i = 0; i < size; i++) {
|
||
|
|
buffer[offset + i] = contents[position + i];
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary XHR
|
||
|
|
buffer[offset + i] = contents.get(position + i);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return size;
|
||
|
|
}
|
||
|
|
// use a custom read function
|
||
|
|
stream_ops.read = (stream, buffer, offset, length, position) => {
|
||
|
|
FS.forceLoadFile(node);
|
||
|
|
return writeChunks(stream, buffer, offset, length, position)
|
||
|
|
};
|
||
|
|
// use a custom mmap function
|
||
|
|
stream_ops.mmap = (stream, length, position, prot, flags) => {
|
||
|
|
FS.forceLoadFile(node);
|
||
|
|
var ptr = mmapAlloc(length);
|
||
|
|
if (!ptr) {
|
||
|
|
throw new FS.ErrnoError(48);
|
||
|
|
}
|
||
|
|
writeChunks(stream, HEAP8, ptr, length, position);
|
||
|
|
return { ptr, allocated: true };
|
||
|
|
};
|
||
|
|
node.stream_ops = stream_ops;
|
||
|
|
return node;
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the
|
||
|
|
* emscripten HEAP, returns a copy of that string as a Javascript String object.
|
||
|
|
*
|
||
|
|
* @param {number} ptr
|
||
|
|
* @param {number=} maxBytesToRead - An optional length that specifies the
|
||
|
|
* maximum number of bytes to read. You can omit this parameter to scan the
|
||
|
|
* string until the first 0 byte. If maxBytesToRead is passed, and the string
|
||
|
|
* at [ptr, ptr+maxBytesToReadr[ contains a null byte in the middle, then the
|
||
|
|
* string will cut short at that byte index.
|
||
|
|
* @param {boolean=} ignoreNul - If true, the function will not stop on a NUL character.
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
var UTF8ToString = (ptr, maxBytesToRead, ignoreNul) => {
|
||
|
|
return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead, ignoreNul) : '';
|
||
|
|
};
|
||
|
|
var SYSCALLS = {
|
||
|
|
DEFAULT_POLLMASK:5,
|
||
|
|
calculateAt(dirfd, path, allowEmpty) {
|
||
|
|
if (PATH.isAbs(path)) {
|
||
|
|
return path;
|
||
|
|
}
|
||
|
|
// relative path
|
||
|
|
var dir;
|
||
|
|
if (dirfd === -100) {
|
||
|
|
dir = FS.cwd();
|
||
|
|
} else {
|
||
|
|
var dirstream = SYSCALLS.getStreamFromFD(dirfd);
|
||
|
|
dir = dirstream.path;
|
||
|
|
}
|
||
|
|
if (path.length == 0) {
|
||
|
|
if (!allowEmpty) {
|
||
|
|
throw new FS.ErrnoError(44);;
|
||
|
|
}
|
||
|
|
return dir;
|
||
|
|
}
|
||
|
|
return dir + '/' + path;
|
||
|
|
},
|
||
|
|
writeStat(buf, stat) {
|
||
|
|
HEAPU32[((buf)>>2)] = stat.dev;
|
||
|
|
HEAPU32[(((buf)+(4))>>2)] = stat.mode;
|
||
|
|
HEAPU32[(((buf)+(8))>>2)] = stat.nlink;
|
||
|
|
HEAPU32[(((buf)+(12))>>2)] = stat.uid;
|
||
|
|
HEAPU32[(((buf)+(16))>>2)] = stat.gid;
|
||
|
|
HEAPU32[(((buf)+(20))>>2)] = stat.rdev;
|
||
|
|
HEAP64[(((buf)+(24))>>3)] = BigInt(stat.size);
|
||
|
|
HEAP32[(((buf)+(32))>>2)] = 4096;
|
||
|
|
HEAP32[(((buf)+(36))>>2)] = stat.blocks;
|
||
|
|
var atime = stat.atime.getTime();
|
||
|
|
var mtime = stat.mtime.getTime();
|
||
|
|
var ctime = stat.ctime.getTime();
|
||
|
|
HEAP64[(((buf)+(40))>>3)] = BigInt(Math.floor(atime / 1000));
|
||
|
|
HEAPU32[(((buf)+(48))>>2)] = (atime % 1000) * 1000 * 1000;
|
||
|
|
HEAP64[(((buf)+(56))>>3)] = BigInt(Math.floor(mtime / 1000));
|
||
|
|
HEAPU32[(((buf)+(64))>>2)] = (mtime % 1000) * 1000 * 1000;
|
||
|
|
HEAP64[(((buf)+(72))>>3)] = BigInt(Math.floor(ctime / 1000));
|
||
|
|
HEAPU32[(((buf)+(80))>>2)] = (ctime % 1000) * 1000 * 1000;
|
||
|
|
HEAP64[(((buf)+(88))>>3)] = BigInt(stat.ino);
|
||
|
|
return 0;
|
||
|
|
},
|
||
|
|
writeStatFs(buf, stats) {
|
||
|
|
HEAPU32[(((buf)+(4))>>2)] = stats.bsize;
|
||
|
|
HEAPU32[(((buf)+(60))>>2)] = stats.bsize;
|
||
|
|
HEAP64[(((buf)+(8))>>3)] = BigInt(stats.blocks);
|
||
|
|
HEAP64[(((buf)+(16))>>3)] = BigInt(stats.bfree);
|
||
|
|
HEAP64[(((buf)+(24))>>3)] = BigInt(stats.bavail);
|
||
|
|
HEAP64[(((buf)+(32))>>3)] = BigInt(stats.files);
|
||
|
|
HEAP64[(((buf)+(40))>>3)] = BigInt(stats.ffree);
|
||
|
|
HEAPU32[(((buf)+(48))>>2)] = stats.fsid;
|
||
|
|
HEAPU32[(((buf)+(64))>>2)] = stats.flags; // ST_NOSUID
|
||
|
|
HEAPU32[(((buf)+(56))>>2)] = stats.namelen;
|
||
|
|
},
|
||
|
|
doMsync(addr, stream, len, flags, offset) {
|
||
|
|
if (!FS.isFile(stream.node.mode)) {
|
||
|
|
throw new FS.ErrnoError(43);
|
||
|
|
}
|
||
|
|
if (flags & 2) {
|
||
|
|
// MAP_PRIVATE calls need not to be synced back to underlying fs
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
var buffer = HEAPU8.slice(addr, addr + len);
|
||
|
|
FS.msync(stream, buffer, offset, len, flags);
|
||
|
|
},
|
||
|
|
getStreamFromFD(fd) {
|
||
|
|
var stream = FS.getStreamChecked(fd);
|
||
|
|
return stream;
|
||
|
|
},
|
||
|
|
varargs:undefined,
|
||
|
|
getStr(ptr) {
|
||
|
|
var ret = UTF8ToString(ptr);
|
||
|
|
return ret;
|
||
|
|
},
|
||
|
|
};
|
||
|
|
function ___syscall_fcntl64(fd, cmd, varargs) {
|
||
|
|
SYSCALLS.varargs = varargs;
|
||
|
|
try {
|
||
|
|
|
||
|
|
var stream = SYSCALLS.getStreamFromFD(fd);
|
||
|
|
switch (cmd) {
|
||
|
|
case 0: {
|
||
|
|
var arg = syscallGetVarargI();
|
||
|
|
if (arg < 0) {
|
||
|
|
return -28;
|
||
|
|
}
|
||
|
|
while (FS.streams[arg]) {
|
||
|
|
arg++;
|
||
|
|
}
|
||
|
|
var newStream;
|
||
|
|
newStream = FS.dupStream(stream, arg);
|
||
|
|
return newStream.fd;
|
||
|
|
}
|
||
|
|
case 1:
|
||
|
|
case 2:
|
||
|
|
return 0; // FD_CLOEXEC makes no sense for a single process.
|
||
|
|
case 3:
|
||
|
|
return stream.flags;
|
||
|
|
case 4: {
|
||
|
|
var arg = syscallGetVarargI();
|
||
|
|
stream.flags |= arg;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
case 12: {
|
||
|
|
var arg = syscallGetVarargP();
|
||
|
|
var offset = 0;
|
||
|
|
// We're always unlocked.
|
||
|
|
HEAP16[(((arg)+(offset))>>1)] = 2;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
case 13:
|
||
|
|
case 14:
|
||
|
|
// Pretend that the locking is successful. These are process-level locks,
|
||
|
|
// and Emscripten programs are a single process. If we supported linking a
|
||
|
|
// filesystem between programs, we'd need to do more here.
|
||
|
|
// See https://github.com/emscripten-core/emscripten/issues/23697
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
return -28;
|
||
|
|
} catch (e) {
|
||
|
|
if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
|
||
|
|
return -e.errno;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function ___syscall_ioctl(fd, op, varargs) {
|
||
|
|
SYSCALLS.varargs = varargs;
|
||
|
|
try {
|
||
|
|
|
||
|
|
var stream = SYSCALLS.getStreamFromFD(fd);
|
||
|
|
switch (op) {
|
||
|
|
case 21509: {
|
||
|
|
if (!stream.tty) return -59;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
case 21505: {
|
||
|
|
if (!stream.tty) return -59;
|
||
|
|
if (stream.tty.ops.ioctl_tcgets) {
|
||
|
|
var termios = stream.tty.ops.ioctl_tcgets(stream);
|
||
|
|
var argp = syscallGetVarargP();
|
||
|
|
HEAP32[((argp)>>2)] = termios.c_iflag || 0;
|
||
|
|
HEAP32[(((argp)+(4))>>2)] = termios.c_oflag || 0;
|
||
|
|
HEAP32[(((argp)+(8))>>2)] = termios.c_cflag || 0;
|
||
|
|
HEAP32[(((argp)+(12))>>2)] = termios.c_lflag || 0;
|
||
|
|
for (var i = 0; i < 32; i++) {
|
||
|
|
HEAP8[(argp + i)+(17)] = termios.c_cc[i] || 0;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
case 21510:
|
||
|
|
case 21511:
|
||
|
|
case 21512: {
|
||
|
|
if (!stream.tty) return -59;
|
||
|
|
return 0; // no-op, not actually adjusting terminal settings
|
||
|
|
}
|
||
|
|
case 21506:
|
||
|
|
case 21507:
|
||
|
|
case 21508: {
|
||
|
|
if (!stream.tty) return -59;
|
||
|
|
if (stream.tty.ops.ioctl_tcsets) {
|
||
|
|
var argp = syscallGetVarargP();
|
||
|
|
var c_iflag = HEAP32[((argp)>>2)];
|
||
|
|
var c_oflag = HEAP32[(((argp)+(4))>>2)];
|
||
|
|
var c_cflag = HEAP32[(((argp)+(8))>>2)];
|
||
|
|
var c_lflag = HEAP32[(((argp)+(12))>>2)];
|
||
|
|
var c_cc = []
|
||
|
|
for (var i = 0; i < 32; i++) {
|
||
|
|
c_cc.push(HEAP8[(argp + i)+(17)]);
|
||
|
|
}
|
||
|
|
return stream.tty.ops.ioctl_tcsets(stream.tty, op, { c_iflag, c_oflag, c_cflag, c_lflag, c_cc });
|
||
|
|
}
|
||
|
|
return 0; // no-op, not actually adjusting terminal settings
|
||
|
|
}
|
||
|
|
case 21519: {
|
||
|
|
if (!stream.tty) return -59;
|
||
|
|
var argp = syscallGetVarargP();
|
||
|
|
HEAP32[((argp)>>2)] = 0;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
case 21520: {
|
||
|
|
if (!stream.tty) return -59;
|
||
|
|
return -28; // not supported
|
||
|
|
}
|
||
|
|
case 21537:
|
||
|
|
case 21531: {
|
||
|
|
var argp = syscallGetVarargP();
|
||
|
|
return FS.ioctl(stream, op, argp);
|
||
|
|
}
|
||
|
|
case 21523: {
|
||
|
|
// TODO: in theory we should write to the winsize struct that gets
|
||
|
|
// passed in, but for now musl doesn't read anything on it
|
||
|
|
if (!stream.tty) return -59;
|
||
|
|
if (stream.tty.ops.ioctl_tiocgwinsz) {
|
||
|
|
var winsize = stream.tty.ops.ioctl_tiocgwinsz(stream.tty);
|
||
|
|
var argp = syscallGetVarargP();
|
||
|
|
HEAP16[((argp)>>1)] = winsize[0];
|
||
|
|
HEAP16[(((argp)+(2))>>1)] = winsize[1];
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
case 21524: {
|
||
|
|
// TODO: technically, this ioctl call should change the window size.
|
||
|
|
// but, since emscripten doesn't have any concept of a terminal window
|
||
|
|
// yet, we'll just silently throw it away as we do TIOCGWINSZ
|
||
|
|
if (!stream.tty) return -59;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
case 21515: {
|
||
|
|
if (!stream.tty) return -59;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
default: return -28; // not supported
|
||
|
|
}
|
||
|
|
} catch (e) {
|
||
|
|
if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
|
||
|
|
return -e.errno;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function ___syscall_openat(dirfd, path, flags, varargs) {
|
||
|
|
SYSCALLS.varargs = varargs;
|
||
|
|
try {
|
||
|
|
|
||
|
|
path = SYSCALLS.getStr(path);
|
||
|
|
path = SYSCALLS.calculateAt(dirfd, path);
|
||
|
|
var mode = varargs ? syscallGetVarargI() : 0;
|
||
|
|
return FS.open(path, flags, mode).fd;
|
||
|
|
} catch (e) {
|
||
|
|
if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
|
||
|
|
return -e.errno;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var INT53_MAX = 9007199254740992;
|
||
|
|
|
||
|
|
var INT53_MIN = -9007199254740992;
|
||
|
|
var bigintToI53Checked = (num) => (num < INT53_MIN || num > INT53_MAX) ? NaN : Number(num);
|
||
|
|
function __gmtime_js(time, tmPtr) {
|
||
|
|
time = bigintToI53Checked(time);
|
||
|
|
|
||
|
|
|
||
|
|
var date = new Date(time * 1000);
|
||
|
|
HEAP32[((tmPtr)>>2)] = date.getUTCSeconds();
|
||
|
|
HEAP32[(((tmPtr)+(4))>>2)] = date.getUTCMinutes();
|
||
|
|
HEAP32[(((tmPtr)+(8))>>2)] = date.getUTCHours();
|
||
|
|
HEAP32[(((tmPtr)+(12))>>2)] = date.getUTCDate();
|
||
|
|
HEAP32[(((tmPtr)+(16))>>2)] = date.getUTCMonth();
|
||
|
|
HEAP32[(((tmPtr)+(20))>>2)] = date.getUTCFullYear()-1900;
|
||
|
|
HEAP32[(((tmPtr)+(24))>>2)] = date.getUTCDay();
|
||
|
|
var start = Date.UTC(date.getUTCFullYear(), 0, 1, 0, 0, 0, 0);
|
||
|
|
var yday = ((date.getTime() - start) / (1000 * 60 * 60 * 24))|0;
|
||
|
|
HEAP32[(((tmPtr)+(28))>>2)] = yday;
|
||
|
|
;
|
||
|
|
}
|
||
|
|
|
||
|
|
var __timegm_js = function(tmPtr) {
|
||
|
|
|
||
|
|
var ret = (() => {
|
||
|
|
var time = Date.UTC(HEAP32[(((tmPtr)+(20))>>2)] + 1900,
|
||
|
|
HEAP32[(((tmPtr)+(16))>>2)],
|
||
|
|
HEAP32[(((tmPtr)+(12))>>2)],
|
||
|
|
HEAP32[(((tmPtr)+(8))>>2)],
|
||
|
|
HEAP32[(((tmPtr)+(4))>>2)],
|
||
|
|
HEAP32[((tmPtr)>>2)],
|
||
|
|
0);
|
||
|
|
var date = new Date(time);
|
||
|
|
|
||
|
|
HEAP32[(((tmPtr)+(24))>>2)] = date.getUTCDay();
|
||
|
|
var start = Date.UTC(date.getUTCFullYear(), 0, 1, 0, 0, 0, 0);
|
||
|
|
var yday = ((date.getTime() - start) / (1000 * 60 * 60 * 24))|0;
|
||
|
|
HEAP32[(((tmPtr)+(28))>>2)] = yday;
|
||
|
|
|
||
|
|
return date.getTime() / 1000;
|
||
|
|
})();
|
||
|
|
return BigInt(ret);
|
||
|
|
};
|
||
|
|
|
||
|
|
var stringToUTF8 = (str, outPtr, maxBytesToWrite) => {
|
||
|
|
return stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite);
|
||
|
|
};
|
||
|
|
var __tzset_js = (timezone, daylight, std_name, dst_name) => {
|
||
|
|
// TODO: Use (malleable) environment variables instead of system settings.
|
||
|
|
var currentYear = new Date().getFullYear();
|
||
|
|
var winter = new Date(currentYear, 0, 1);
|
||
|
|
var summer = new Date(currentYear, 6, 1);
|
||
|
|
var winterOffset = winter.getTimezoneOffset();
|
||
|
|
var summerOffset = summer.getTimezoneOffset();
|
||
|
|
|
||
|
|
// Local standard timezone offset. Local standard time is not adjusted for
|
||
|
|
// daylight savings. This code uses the fact that getTimezoneOffset returns
|
||
|
|
// a greater value during Standard Time versus Daylight Saving Time (DST).
|
||
|
|
// Thus it determines the expected output during Standard Time, and it
|
||
|
|
// compares whether the output of the given date the same (Standard) or less
|
||
|
|
// (DST).
|
||
|
|
var stdTimezoneOffset = Math.max(winterOffset, summerOffset);
|
||
|
|
|
||
|
|
// timezone is specified as seconds west of UTC ("The external variable
|
||
|
|
// `timezone` shall be set to the difference, in seconds, between
|
||
|
|
// Coordinated Universal Time (UTC) and local standard time."), the same
|
||
|
|
// as returned by stdTimezoneOffset.
|
||
|
|
// See http://pubs.opengroup.org/onlinepubs/009695399/functions/tzset.html
|
||
|
|
HEAPU32[((timezone)>>2)] = stdTimezoneOffset * 60;
|
||
|
|
|
||
|
|
HEAP32[((daylight)>>2)] = Number(winterOffset != summerOffset);
|
||
|
|
|
||
|
|
var extractZone = (timezoneOffset) => {
|
||
|
|
// Why inverse sign?
|
||
|
|
// Read here https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
|
||
|
|
var sign = timezoneOffset >= 0 ? "-" : "+";
|
||
|
|
|
||
|
|
var absOffset = Math.abs(timezoneOffset)
|
||
|
|
var hours = String(Math.floor(absOffset / 60)).padStart(2, "0");
|
||
|
|
var minutes = String(absOffset % 60).padStart(2, "0");
|
||
|
|
|
||
|
|
return `UTC${sign}${hours}${minutes}`;
|
||
|
|
}
|
||
|
|
|
||
|
|
var winterName = extractZone(winterOffset);
|
||
|
|
var summerName = extractZone(summerOffset);
|
||
|
|
if (summerOffset < winterOffset) {
|
||
|
|
// Northern hemisphere
|
||
|
|
stringToUTF8(winterName, std_name, 17);
|
||
|
|
stringToUTF8(summerName, dst_name, 17);
|
||
|
|
} else {
|
||
|
|
stringToUTF8(winterName, dst_name, 17);
|
||
|
|
stringToUTF8(summerName, std_name, 17);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
var readEmAsmArgsArray = [];
|
||
|
|
var readEmAsmArgs = (sigPtr, buf) => {
|
||
|
|
readEmAsmArgsArray.length = 0;
|
||
|
|
var ch;
|
||
|
|
// Most arguments are i32s, so shift the buffer pointer so it is a plain
|
||
|
|
// index into HEAP32.
|
||
|
|
while (ch = HEAPU8[sigPtr++]) {
|
||
|
|
// Floats are always passed as doubles, so all types except for 'i'
|
||
|
|
// are 8 bytes and require alignment.
|
||
|
|
var wide = (ch != 105);
|
||
|
|
wide &= (ch != 112);
|
||
|
|
buf += wide && (buf % 8) ? 4 : 0;
|
||
|
|
readEmAsmArgsArray.push(
|
||
|
|
// Special case for pointers under wasm64 or CAN_ADDRESS_2GB mode.
|
||
|
|
ch == 112 ? HEAPU32[((buf)>>2)] :
|
||
|
|
ch == 106 ? HEAP64[((buf)>>3)] :
|
||
|
|
ch == 105 ?
|
||
|
|
HEAP32[((buf)>>2)] :
|
||
|
|
HEAPF64[((buf)>>3)]
|
||
|
|
);
|
||
|
|
buf += wide ? 8 : 4;
|
||
|
|
}
|
||
|
|
return readEmAsmArgsArray;
|
||
|
|
};
|
||
|
|
var runEmAsmFunction = (code, sigPtr, argbuf) => {
|
||
|
|
var args = readEmAsmArgs(sigPtr, argbuf);
|
||
|
|
return ASM_CONSTS[code](...args);
|
||
|
|
};
|
||
|
|
var _emscripten_asm_const_int = (code, sigPtr, argbuf) => {
|
||
|
|
return runEmAsmFunction(code, sigPtr, argbuf);
|
||
|
|
};
|
||
|
|
|
||
|
|
var abortOnCannotGrowMemory = (requestedSize) => {
|
||
|
|
abort('OOM');
|
||
|
|
};
|
||
|
|
var _emscripten_resize_heap = (requestedSize) => {
|
||
|
|
var oldSize = HEAPU8.length;
|
||
|
|
// With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
|
||
|
|
requestedSize >>>= 0;
|
||
|
|
abortOnCannotGrowMemory(requestedSize);
|
||
|
|
};
|
||
|
|
|
||
|
|
var ENV = {
|
||
|
|
};
|
||
|
|
|
||
|
|
var getExecutableName = () => thisProgram || './this.program';
|
||
|
|
var getEnvStrings = () => {
|
||
|
|
if (!getEnvStrings.strings) {
|
||
|
|
// Default values.
|
||
|
|
// Browser language detection #8751
|
||
|
|
var lang = (globalThis.navigator?.language ?? 'C').replace('-', '_') + '.UTF-8';
|
||
|
|
var env = {
|
||
|
|
'USER': 'web_user',
|
||
|
|
'LOGNAME': 'web_user',
|
||
|
|
'PATH': '/',
|
||
|
|
'PWD': '/',
|
||
|
|
'HOME': '/home/web_user',
|
||
|
|
'LANG': lang,
|
||
|
|
'_': getExecutableName()
|
||
|
|
};
|
||
|
|
// Apply the user-provided values, if any.
|
||
|
|
for (var x in ENV) {
|
||
|
|
// x is a key in ENV; if ENV[x] is undefined, that means it was
|
||
|
|
// explicitly set to be so. We allow user code to do that to
|
||
|
|
// force variables with default values to remain unset.
|
||
|
|
if (ENV[x] === undefined) delete env[x];
|
||
|
|
else env[x] = ENV[x];
|
||
|
|
}
|
||
|
|
var strings = [];
|
||
|
|
for (var x in env) {
|
||
|
|
strings.push(`${x}=${env[x]}`);
|
||
|
|
}
|
||
|
|
getEnvStrings.strings = strings;
|
||
|
|
}
|
||
|
|
return getEnvStrings.strings;
|
||
|
|
};
|
||
|
|
|
||
|
|
var _environ_get = (__environ, environ_buf) => {
|
||
|
|
var bufSize = 0;
|
||
|
|
var envp = 0;
|
||
|
|
for (var string of getEnvStrings()) {
|
||
|
|
var ptr = environ_buf + bufSize;
|
||
|
|
HEAPU32[(((__environ)+(envp))>>2)] = ptr;
|
||
|
|
bufSize += stringToUTF8(string, ptr, Infinity) + 1;
|
||
|
|
envp += 4;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
var _environ_sizes_get = (penviron_count, penviron_buf_size) => {
|
||
|
|
var strings = getEnvStrings();
|
||
|
|
HEAPU32[((penviron_count)>>2)] = strings.length;
|
||
|
|
var bufSize = 0;
|
||
|
|
for (var string of strings) {
|
||
|
|
bufSize += lengthBytesUTF8(string) + 1;
|
||
|
|
}
|
||
|
|
HEAPU32[((penviron_buf_size)>>2)] = bufSize;
|
||
|
|
return 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
function _fd_close(fd) {
|
||
|
|
try {
|
||
|
|
|
||
|
|
var stream = SYSCALLS.getStreamFromFD(fd);
|
||
|
|
FS.close(stream);
|
||
|
|
return 0;
|
||
|
|
} catch (e) {
|
||
|
|
if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
|
||
|
|
return e.errno;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/** @param {number=} offset */
|
||
|
|
var doReadv = (stream, iov, iovcnt, offset) => {
|
||
|
|
var ret = 0;
|
||
|
|
for (var i = 0; i < iovcnt; i++) {
|
||
|
|
var ptr = HEAPU32[((iov)>>2)];
|
||
|
|
var len = HEAPU32[(((iov)+(4))>>2)];
|
||
|
|
iov += 8;
|
||
|
|
var curr = FS.read(stream, HEAP8, ptr, len, offset);
|
||
|
|
if (curr < 0) return -1;
|
||
|
|
ret += curr;
|
||
|
|
if (curr < len) break; // nothing more to read
|
||
|
|
if (typeof offset != 'undefined') {
|
||
|
|
offset += curr;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
|
||
|
|
function _fd_read(fd, iov, iovcnt, pnum) {
|
||
|
|
try {
|
||
|
|
|
||
|
|
var stream = SYSCALLS.getStreamFromFD(fd);
|
||
|
|
var num = doReadv(stream, iov, iovcnt);
|
||
|
|
HEAPU32[((pnum)>>2)] = num;
|
||
|
|
return 0;
|
||
|
|
} catch (e) {
|
||
|
|
if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
|
||
|
|
return e.errno;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _fd_seek(fd, offset, whence, newOffset) {
|
||
|
|
offset = bigintToI53Checked(offset);
|
||
|
|
|
||
|
|
|
||
|
|
try {
|
||
|
|
|
||
|
|
if (isNaN(offset)) return 61;
|
||
|
|
var stream = SYSCALLS.getStreamFromFD(fd);
|
||
|
|
FS.llseek(stream, offset, whence);
|
||
|
|
HEAP64[((newOffset)>>3)] = BigInt(stream.position);
|
||
|
|
if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null; // reset readdir state
|
||
|
|
return 0;
|
||
|
|
} catch (e) {
|
||
|
|
if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
|
||
|
|
return e.errno;
|
||
|
|
}
|
||
|
|
;
|
||
|
|
}
|
||
|
|
|
||
|
|
/** @param {number=} offset */
|
||
|
|
var doWritev = (stream, iov, iovcnt, offset) => {
|
||
|
|
var ret = 0;
|
||
|
|
for (var i = 0; i < iovcnt; i++) {
|
||
|
|
var ptr = HEAPU32[((iov)>>2)];
|
||
|
|
var len = HEAPU32[(((iov)+(4))>>2)];
|
||
|
|
iov += 8;
|
||
|
|
var curr = FS.write(stream, HEAP8, ptr, len, offset);
|
||
|
|
if (curr < 0) return -1;
|
||
|
|
ret += curr;
|
||
|
|
if (curr < len) {
|
||
|
|
// No more space to write.
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (typeof offset != 'undefined') {
|
||
|
|
offset += curr;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
|
||
|
|
function _fd_write(fd, iov, iovcnt, pnum) {
|
||
|
|
try {
|
||
|
|
|
||
|
|
var stream = SYSCALLS.getStreamFromFD(fd);
|
||
|
|
var num = doWritev(stream, iov, iovcnt);
|
||
|
|
HEAPU32[((pnum)>>2)] = num;
|
||
|
|
return 0;
|
||
|
|
} catch (e) {
|
||
|
|
if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e;
|
||
|
|
return e.errno;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var getCFunc = (ident) => {
|
||
|
|
var func = Module['_' + ident]; // closure exported function
|
||
|
|
return func;
|
||
|
|
};
|
||
|
|
|
||
|
|
var writeArrayToMemory = (array, buffer) => {
|
||
|
|
HEAP8.set(array, buffer);
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
var stackAlloc = (sz) => __emscripten_stack_alloc(sz);
|
||
|
|
var stringToUTF8OnStack = (str) => {
|
||
|
|
var size = lengthBytesUTF8(str) + 1;
|
||
|
|
var ret = stackAlloc(size);
|
||
|
|
stringToUTF8(str, ret, size);
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {string|null=} returnType
|
||
|
|
* @param {Array=} argTypes
|
||
|
|
* @param {Array=} args
|
||
|
|
* @param {Object=} opts
|
||
|
|
*/
|
||
|
|
var ccall = (ident, returnType, argTypes, args, opts) => {
|
||
|
|
// For fast lookup of conversion functions
|
||
|
|
var toC = {
|
||
|
|
'string': (str) => {
|
||
|
|
var ret = 0;
|
||
|
|
if (str !== null && str !== undefined && str !== 0) { // null string
|
||
|
|
ret = stringToUTF8OnStack(str);
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
},
|
||
|
|
'array': (arr) => {
|
||
|
|
var ret = stackAlloc(arr.length);
|
||
|
|
writeArrayToMemory(arr, ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
function convertReturnValue(ret) {
|
||
|
|
if (returnType === 'string') {
|
||
|
|
return UTF8ToString(ret);
|
||
|
|
}
|
||
|
|
if (returnType === 'boolean') return Boolean(ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
var func = getCFunc(ident);
|
||
|
|
var cArgs = [];
|
||
|
|
var stack = 0;
|
||
|
|
if (args) {
|
||
|
|
for (var i = 0; i < args.length; i++) {
|
||
|
|
var converter = toC[argTypes[i]];
|
||
|
|
if (converter) {
|
||
|
|
if (stack === 0) stack = stackSave();
|
||
|
|
cArgs[i] = converter(args[i]);
|
||
|
|
} else {
|
||
|
|
cArgs[i] = args[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
var ret = func(...cArgs);
|
||
|
|
function onDone(ret) {
|
||
|
|
if (stack !== 0) stackRestore(stack);
|
||
|
|
return convertReturnValue(ret);
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = onDone(ret);
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {string=} returnType
|
||
|
|
* @param {Array=} argTypes
|
||
|
|
* @param {Object=} opts
|
||
|
|
*/
|
||
|
|
var cwrap = (ident, returnType, argTypes, opts) => {
|
||
|
|
// When the function takes numbers and returns a number, we can just return
|
||
|
|
// the original function
|
||
|
|
var numericArgs = !argTypes || argTypes.every((type) => type === 'number' || type === 'boolean');
|
||
|
|
var numericRet = returnType !== 'string';
|
||
|
|
if (numericRet && numericArgs && !opts) {
|
||
|
|
return getCFunc(ident);
|
||
|
|
}
|
||
|
|
return (...args) => ccall(ident, returnType, argTypes, args, opts);
|
||
|
|
};
|
||
|
|
|
||
|
|
FS.createPreloadedFile = FS_createPreloadedFile;
|
||
|
|
FS.preloadFile = FS_preloadFile;
|
||
|
|
FS.staticInit();;
|
||
|
|
// End JS library code
|
||
|
|
|
||
|
|
// include: postlibrary.js
|
||
|
|
// This file is included after the automatically-generated JS library code
|
||
|
|
// but before the wasm module is created.
|
||
|
|
|
||
|
|
{
|
||
|
|
|
||
|
|
// Begin ATMODULES hooks
|
||
|
|
if (Module['noExitRuntime']) noExitRuntime = Module['noExitRuntime'];
|
||
|
|
if (Module['preloadPlugins']) preloadPlugins = Module['preloadPlugins'];
|
||
|
|
if (Module['print']) out = Module['print'];
|
||
|
|
if (Module['printErr']) err = Module['printErr'];
|
||
|
|
if (Module['wasmBinary']) wasmBinary = Module['wasmBinary'];
|
||
|
|
// End ATMODULES hooks
|
||
|
|
|
||
|
|
if (Module['arguments']) arguments_ = Module['arguments'];
|
||
|
|
if (Module['thisProgram']) thisProgram = Module['thisProgram'];
|
||
|
|
|
||
|
|
if (Module['preInit']) {
|
||
|
|
if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
|
||
|
|
while (Module['preInit'].length > 0) {
|
||
|
|
Module['preInit'].shift()();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Begin runtime exports
|
||
|
|
Module['ccall'] = ccall;
|
||
|
|
Module['cwrap'] = cwrap;
|
||
|
|
// End runtime exports
|
||
|
|
// Begin JS library exports
|
||
|
|
// End JS library exports
|
||
|
|
|
||
|
|
// end include: postlibrary.js
|
||
|
|
|
||
|
|
var ASM_CONSTS = {
|
||
|
|
230860: ($0, $1) => { NProgress.set($0/$1); }
|
||
|
|
};
|
||
|
|
|
||
|
|
// Imports from the Wasm binary.
|
||
|
|
var _get,
|
||
|
|
__emscripten_stack_restore,
|
||
|
|
__emscripten_stack_alloc,
|
||
|
|
_emscripten_stack_get_current,
|
||
|
|
memory,
|
||
|
|
__indirect_function_table,
|
||
|
|
wasmMemory;
|
||
|
|
|
||
|
|
|
||
|
|
function assignWasmExports(wasmExports) {
|
||
|
|
_get = Module['_get'] = wasmExports['get'];
|
||
|
|
__emscripten_stack_restore = wasmExports['_emscripten_stack_restore'];
|
||
|
|
__emscripten_stack_alloc = wasmExports['_emscripten_stack_alloc'];
|
||
|
|
_emscripten_stack_get_current = wasmExports['emscripten_stack_get_current'];
|
||
|
|
memory = wasmMemory = wasmExports['memory'];
|
||
|
|
__indirect_function_table = wasmExports['__indirect_function_table'];
|
||
|
|
}
|
||
|
|
|
||
|
|
var wasmImports = {
|
||
|
|
/** @export */
|
||
|
|
__syscall_fcntl64: ___syscall_fcntl64,
|
||
|
|
/** @export */
|
||
|
|
__syscall_ioctl: ___syscall_ioctl,
|
||
|
|
/** @export */
|
||
|
|
__syscall_openat: ___syscall_openat,
|
||
|
|
/** @export */
|
||
|
|
_gmtime_js: __gmtime_js,
|
||
|
|
/** @export */
|
||
|
|
_timegm_js: __timegm_js,
|
||
|
|
/** @export */
|
||
|
|
_tzset_js: __tzset_js,
|
||
|
|
/** @export */
|
||
|
|
emscripten_asm_const_int: _emscripten_asm_const_int,
|
||
|
|
/** @export */
|
||
|
|
emscripten_resize_heap: _emscripten_resize_heap,
|
||
|
|
/** @export */
|
||
|
|
environ_get: _environ_get,
|
||
|
|
/** @export */
|
||
|
|
environ_sizes_get: _environ_sizes_get,
|
||
|
|
/** @export */
|
||
|
|
fd_close: _fd_close,
|
||
|
|
/** @export */
|
||
|
|
fd_read: _fd_read,
|
||
|
|
/** @export */
|
||
|
|
fd_seek: _fd_seek,
|
||
|
|
/** @export */
|
||
|
|
fd_write: _fd_write
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
// include: postamble.js
|
||
|
|
// === Auto-generated postamble setup entry stuff ===
|
||
|
|
|
||
|
|
function run() {
|
||
|
|
|
||
|
|
if (runDependencies > 0) {
|
||
|
|
dependenciesFulfilled = run;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
preRun();
|
||
|
|
|
||
|
|
// a preRun added a dependency, run will be called later
|
||
|
|
if (runDependencies > 0) {
|
||
|
|
dependenciesFulfilled = run;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
function doRun() {
|
||
|
|
// run may have just been called through dependencies being fulfilled just in this very frame,
|
||
|
|
// or while the async setStatus time below was happening
|
||
|
|
Module['calledRun'] = true;
|
||
|
|
|
||
|
|
if (ABORT) return;
|
||
|
|
|
||
|
|
initRuntime();
|
||
|
|
|
||
|
|
Module['onRuntimeInitialized']?.();
|
||
|
|
|
||
|
|
postRun();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Module['setStatus']) {
|
||
|
|
Module['setStatus']('Running...');
|
||
|
|
setTimeout(() => {
|
||
|
|
setTimeout(() => Module['setStatus'](''), 1);
|
||
|
|
doRun();
|
||
|
|
}, 1);
|
||
|
|
} else
|
||
|
|
{
|
||
|
|
doRun();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var wasmExports;
|
||
|
|
|
||
|
|
// With async instantation wasmExports is assigned asynchronously when the
|
||
|
|
// instance is received.
|
||
|
|
createWasm();
|
||
|
|
|
||
|
|
run();
|
||
|
|
|
||
|
|
// end include: postamble.js
|
||
|
|
|