de8d4c1101
Change-Id: Ic7f3a36cdb40cddf04ed7d89c41c2719737cc834 Reviewed-on: https://chromium-review.googlesource.com/c/external/github.com/WebKit/JetStream/+/6651527 Reviewed-by: Daniel Lehmann <dlehmann@chromium.org>
3571 lines
113 KiB
JavaScript
3571 lines
113 KiB
JavaScript
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var setupModule = (() => {
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var _scriptName = typeof document != 'undefined' ? document.currentScript?.src : undefined;
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if (typeof __filename != 'undefined') _scriptName = _scriptName || __filename;
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return (
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function(moduleArg = {}) {
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var moduleRtn;
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// include: shell.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 = moduleArg;
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// Set up the promise that indicates the Module is initialized
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var readyPromiseResolve, readyPromiseReject;
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var readyPromise = new Promise((resolve, reject) => {
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readyPromiseResolve = resolve;
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readyPromiseReject = reject;
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});
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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 = typeof window == "object";
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var ENVIRONMENT_IS_WORKER = typeof WorkerGlobalScope != "undefined";
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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 = typeof process == "object" && typeof process.versions == "object" && typeof process.versions.node == "string" && process.type != "renderer";
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if (ENVIRONMENT_IS_NODE) {}
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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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// Sometimes an existing Module object exists with properties
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// meant to overwrite the default module functionality. Here
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// we collect those properties and reapply _after_ we configure
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// the current environment's defaults to avoid having to be so
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// defensive during initialization.
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var moduleOverrides = Object.assign({}, 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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// `/` 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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var nodePath = require("path");
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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. Normalizing isn't
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// necessary in that case, the path should already be absolute.
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filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(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 = (filename, binary = true) => {
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// See the comment in the `readBinary` function.
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filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename);
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return new Promise((resolve, reject) => {
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fs.readFile(filename, binary ? undefined : "utf8", (err, data) => {
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if (err) reject(err); else resolve(binary ? data.buffer : data);
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});
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});
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};
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// end include: node_shell_read.js
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if (!Module["thisProgram"] && 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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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 // 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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if (ENVIRONMENT_IS_WORKER) {
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// Check worker, not web, since window could be polyfilled
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scriptDirectory = self.location.href;
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} else if (typeof document != "undefined" && document.currentScript) {
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// web
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scriptDirectory = document.currentScript.src;
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}
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// When MODULARIZE, this JS may be executed later, after document.currentScript
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// is gone, so we saved it, and we use it here instead of any other info.
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if (_scriptName) {
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scriptDirectory = _scriptName;
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}
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// blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them.
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// otherwise, slice off the final part of the url to find the script directory.
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// if scriptDirectory does not contain a slash, lastIndexOf will return -1,
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// and scriptDirectory will correctly be replaced with an empty string.
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// If scriptDirectory contains a query (starting with ?) or a fragment (starting with #),
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// they are removed because they could contain a slash.
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if (scriptDirectory.startsWith("blob:")) {
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scriptDirectory = "";
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} else {
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scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, "").lastIndexOf("/") + 1);
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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 = 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)) {
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// 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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return fetch(url, {
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credentials: "same-origin"
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}).then(response => {
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if (response.ok) {
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return response.arrayBuffer();
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}
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return Promise.reject(new Error(response.status + " : " + response.url));
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});
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};
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}
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} else // end include: web_or_worker_shell_read.js
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{}
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var out = Module["print"] || console.log.bind(console);
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var err = Module["printErr"] || console.error.bind(console);
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// Merge back in the overrides
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Object.assign(Module, moduleOverrides);
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// Free the object hierarchy contained in the overrides, this lets the GC
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// reclaim data used.
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moduleOverrides = null;
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// Emit code to handle expected values on the Module object. This applies Module.x
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// to the proper local x. This has two benefits: first, we only emit it if it is
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// expected to arrive, and second, by using a local everywhere else that can be
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// minified.
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if (Module["arguments"]) arguments_ = Module["arguments"];
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if (Module["thisProgram"]) thisProgram = Module["thisProgram"];
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// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message
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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 = Module["wasmBinary"];
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// include: base64Utils.js
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// Converts a string of base64 into a byte array (Uint8Array).
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function intArrayFromBase64(s) {
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if (typeof ENVIRONMENT_IS_NODE != "undefined" && ENVIRONMENT_IS_NODE) {
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var buf = Buffer.from(s, "base64");
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return new Uint8Array(buf.buffer, buf.byteOffset, buf.length);
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}
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var decoded = atob(s);
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var bytes = new Uint8Array(decoded.length);
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for (var i = 0; i < decoded.length; ++i) {
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bytes[i] = decoded.charCodeAt(i);
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}
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return bytes;
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}
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// end include: base64Utils.js
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// Wasm globals
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var wasmMemory;
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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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// Memory management
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var /** @type {!Int8Array} */ HEAP8, /** @type {!Uint8Array} */ HEAPU8, /** @type {!Int16Array} */ HEAP16, /** @type {!Uint16Array} */ HEAPU16, /** @type {!Int32Array} */ HEAP32, /** @type {!Uint32Array} */ HEAPU32, /** @type {!Float32Array} */ HEAPF32, /** @type {!Float64Array} */ HEAPF64;
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// include: runtime_shared.js
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function updateMemoryViews() {
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var b = wasmMemory.buffer;
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Module["HEAP8"] = HEAP8 = new Int8Array(b);
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Module["HEAP16"] = HEAP16 = new Int16Array(b);
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Module["HEAPU8"] = HEAPU8 = new Uint8Array(b);
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Module["HEAPU16"] = HEAPU16 = new Uint16Array(b);
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Module["HEAP32"] = HEAP32 = new Int32Array(b);
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Module["HEAPU32"] = HEAPU32 = new Uint32Array(b);
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Module["HEAPF32"] = HEAPF32 = new Float32Array(b);
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Module["HEAPF64"] = HEAPF64 = new Float64Array(b);
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}
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// end include: runtime_shared.js
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// include: runtime_stack_check.js
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// end include: runtime_stack_check.js
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var __ATPRERUN__ = [];
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// functions called before the runtime is initialized
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var __ATINIT__ = [];
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// functions called during shutdown
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var __ATPOSTRUN__ = [];
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// functions called after the main() is called
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var runtimeInitialized = false;
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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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callRuntimeCallbacks(__ATPRERUN__);
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}
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function initRuntime() {
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runtimeInitialized = true;
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if (!Module["noFSInit"] && !FS.initialized) FS.init();
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FS.ignorePermissions = false;
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TTY.init();
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callRuntimeCallbacks(__ATINIT__);
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}
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function postRun() {
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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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callRuntimeCallbacks(__ATPOSTRUN__);
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}
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function addOnPreRun(cb) {
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__ATPRERUN__.unshift(cb);
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}
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function addOnInit(cb) {
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__ATINIT__.unshift(cb);
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}
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function addOnPostRun(cb) {
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__ATPOSTRUN__.unshift(cb);
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}
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// include: runtime_math.js
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc
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// end include: runtime_math.js
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// A counter of dependencies for calling run(). If we need to
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// do asynchronous work before running, increment this and
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// decrement it. Incrementing must happen in a place like
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// Module.preRun (used by emcc to add file preloading).
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// Note that you can add dependencies in preRun, even though
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// it happens right before run - run will be postponed until
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// the dependencies are met.
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var runDependencies = 0;
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var runDependencyWatcher = null;
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var dependenciesFulfilled = null;
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// overridden to take different actions when all run dependencies are fulfilled
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function getUniqueRunDependency(id) {
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return id;
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}
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function addRunDependency(id) {
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runDependencies++;
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Module["monitorRunDependencies"]?.(runDependencies);
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}
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function removeRunDependency(id) {
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runDependencies--;
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Module["monitorRunDependencies"]?.(runDependencies);
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if (runDependencies == 0) {
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if (runDependencyWatcher !== null) {
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clearInterval(runDependencyWatcher);
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runDependencyWatcher = null;
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}
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if (dependenciesFulfilled) {
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var callback = dependenciesFulfilled;
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dependenciesFulfilled = null;
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callback();
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}
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}
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}
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/** @param {string|number=} what */ 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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// 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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// TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.
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/** @suppress {checkTypes} */ var e = new WebAssembly.RuntimeError(what);
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readyPromiseReject(e);
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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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// include: memoryprofiler.js
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// end include: memoryprofiler.js
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// include: URIUtils.js
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// Prefix of data URIs emitted by SINGLE_FILE and related options.
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var dataURIPrefix = "data:application/octet-stream;base64,";
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|
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/**
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* Indicates whether filename is a base64 data URI.
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* @noinline
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*/ var isDataURI = filename => filename.startsWith(dataURIPrefix);
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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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*/ var isFileURI = filename => filename.startsWith("file://");
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// end include: URIUtils.js
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// include: runtime_exceptions.js
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// end include: runtime_exceptions.js
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function findWasmBinary() {
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var f = "zlib.wasm";
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if (!isDataURI(f)) {
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return locateFile(f);
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}
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return f;
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}
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var wasmBinaryFile;
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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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}
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throw "both async and sync fetching of the wasm failed";
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}
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function getBinaryPromise(binaryFile) {
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// If we don't have the binary yet, load it asynchronously using readAsync.
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if (!wasmBinary) {
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// Fetch the binary using readAsync
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return readAsync(binaryFile).then(response => new Uint8Array(/** @type{!ArrayBuffer} */ (response)), // Fall back to getBinarySync if readAsync fails
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() => getBinarySync(binaryFile));
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}
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// Otherwise, getBinarySync should be able to get it synchronously
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return Promise.resolve().then(() => getBinarySync(binaryFile));
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}
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function instantiateArrayBuffer(binaryFile, imports, receiver) {
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return getBinaryPromise(binaryFile).then(binary => WebAssembly.instantiate(binary, imports)).then(receiver, reason => {
|
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err(`failed to asynchronously prepare wasm: ${reason}`);
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abort(reason);
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});
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}
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function instantiateAsync(binary, binaryFile, imports, callback) {
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if (!binary && typeof WebAssembly.instantiateStreaming == "function" && !isDataURI(binaryFile) && // Don't use streaming for file:// delivered objects in a webview, fetch them synchronously.
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!isFileURI(binaryFile) && // Avoid instantiateStreaming() on Node.js environment for now, as while
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// Node.js v18.1.0 implements it, it does not have a full fetch()
|
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// implementation yet.
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// Reference:
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// https://github.com/emscripten-core/emscripten/pull/16917
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!ENVIRONMENT_IS_NODE && typeof fetch == "function") {
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return fetch(binaryFile, {
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credentials: "same-origin"
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}).then(response => {
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// Suppress closure warning here since the upstream definition for
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// instantiateStreaming only allows Promise<Repsponse> rather than
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// an actual Response.
|
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// TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure is fixed.
|
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/** @suppress {checkTypes} */ var result = WebAssembly.instantiateStreaming(response, imports);
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return result.then(callback, function(reason) {
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// We expect the most common failure cause to be a bad MIME type for the binary,
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// in which case falling back to ArrayBuffer instantiation should work.
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err(`wasm streaming compile failed: ${reason}`);
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err("falling back to ArrayBuffer instantiation");
|
|
return instantiateArrayBuffer(binaryFile, imports, callback);
|
|
});
|
|
});
|
|
}
|
|
return instantiateArrayBuffer(binaryFile, imports, callback);
|
|
}
|
|
|
|
function getWasmImports() {
|
|
// prepare imports
|
|
return {
|
|
"env": wasmImports,
|
|
"wasi_snapshot_preview1": wasmImports
|
|
};
|
|
}
|
|
|
|
// Create the wasm instance.
|
|
// Receives the wasm imports, returns the exports.
|
|
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;
|
|
wasmMemory = wasmExports["memory"];
|
|
updateMemoryViews();
|
|
addOnInit(wasmExports["__wasm_call_ctors"]);
|
|
removeRunDependency("wasm-instantiate");
|
|
return wasmExports;
|
|
}
|
|
// wait for the pthread pool (if any)
|
|
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.
|
|
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"]) {
|
|
try {
|
|
return Module["instantiateWasm"](info, receiveInstance);
|
|
} catch (e) {
|
|
err(`Module.instantiateWasm callback failed with error: ${e}`);
|
|
// If instantiation fails, reject the module ready promise.
|
|
readyPromiseReject(e);
|
|
}
|
|
}
|
|
wasmBinaryFile ??= findWasmBinary();
|
|
// If instantiation fails, reject the module ready promise.
|
|
instantiateAsync(wasmBinary, wasmBinaryFile, info, receiveInstantiationResult).catch(readyPromiseReject);
|
|
return {};
|
|
}
|
|
|
|
// Globals used by JS i64 conversions (see makeSetValue)
|
|
var tempDouble;
|
|
|
|
var tempI64;
|
|
|
|
// include: runtime_debug.js
|
|
// end include: runtime_debug.js
|
|
// === Body ===
|
|
// end include: preamble.js
|
|
class ExitStatus {
|
|
name="ExitStatus";
|
|
constructor(status) {
|
|
this.message = `Program terminated with exit(${status})`;
|
|
this.status = status;
|
|
}
|
|
}
|
|
|
|
var callRuntimeCallbacks = callbacks => {
|
|
while (callbacks.length > 0) {
|
|
// Pass the module as the first argument.
|
|
callbacks.shift()(Module);
|
|
}
|
|
};
|
|
|
|
var noExitRuntime = Module["noExitRuntime"] || true;
|
|
|
|
var UTF8Decoder = typeof TextDecoder != "undefined" ? new TextDecoder : undefined;
|
|
|
|
/**
|
|
* 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
|
|
* @return {string}
|
|
*/ var UTF8ArrayToString = (heapOrArray, idx = 0, maxBytesToRead = NaN) => {
|
|
var endIdx = idx + maxBytesToRead;
|
|
var endPtr = idx;
|
|
// TextDecoder needs to know the byte length in advance, it doesn't stop on
|
|
// null terminator by itself. Also, use the length info to avoid running tiny
|
|
// strings through TextDecoder, since .subarray() allocates garbage.
|
|
// (As a tiny code save trick, compare endPtr against endIdx using a negation,
|
|
// so that undefined/NaN means Infinity)
|
|
while (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr;
|
|
if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
|
|
return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr));
|
|
}
|
|
var str = "";
|
|
// If building with TextDecoder, we have already computed the string length
|
|
// above, so test loop end condition against that
|
|
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 & 128)) {
|
|
str += String.fromCharCode(u0);
|
|
continue;
|
|
}
|
|
var u1 = heapOrArray[idx++] & 63;
|
|
if ((u0 & 224) == 192) {
|
|
str += String.fromCharCode(((u0 & 31) << 6) | u1);
|
|
continue;
|
|
}
|
|
var u2 = heapOrArray[idx++] & 63;
|
|
if ((u0 & 240) == 224) {
|
|
u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
|
|
} else {
|
|
u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heapOrArray[idx++] & 63);
|
|
}
|
|
if (u0 < 65536) {
|
|
str += String.fromCharCode(u0);
|
|
} else {
|
|
var ch = u0 - 65536;
|
|
str += String.fromCharCode(55296 | (ch >> 10), 56320 | (ch & 1023));
|
|
}
|
|
}
|
|
return str;
|
|
};
|
|
|
|
/**
|
|
* 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 (i.e. maxBytesToRead will not
|
|
* produce a string of exact length [ptr, ptr+maxBytesToRead[) N.B. mixing
|
|
* frequent uses of UTF8ToString() with and without maxBytesToRead may throw
|
|
* JS JIT optimizations off, so it is worth to consider consistently using one
|
|
* @return {string}
|
|
*/ var UTF8ToString = (ptr, maxBytesToRead) => ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : "";
|
|
|
|
var ___assert_fail = (condition, filename, line, func) => abort(`Assertion failed: ${UTF8ToString(condition)}, at: ` + [ filename ? UTF8ToString(filename) : "unknown filename", line, func ? UTF8ToString(func) : "unknown function" ]);
|
|
|
|
/** @suppress {duplicate } */ var syscallGetVarargI = () => {
|
|
// the `+` prepended here is necessary to convince the JSCompiler that varargs is indeed a number.
|
|
var ret = HEAP32[((+SYSCALLS.varargs) >> 2)];
|
|
SYSCALLS.varargs += 4;
|
|
return ret;
|
|
};
|
|
|
|
var syscallGetVarargP = syscallGetVarargI;
|
|
|
|
var PATH = {
|
|
isAbs: path => path.charAt(0) === "/",
|
|
splitPath: filename => {
|
|
var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
|
|
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.substr(-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.substr(0, dir.length - 1);
|
|
}
|
|
return root + dir;
|
|
},
|
|
basename: path => {
|
|
// EMSCRIPTEN return '/'' for '/', not an empty string
|
|
if (path === "/") return "/";
|
|
path = PATH.normalize(path);
|
|
path = path.replace(/\/$/, "");
|
|
var lastSlash = path.lastIndexOf("/");
|
|
if (lastSlash === -1) return path;
|
|
return path.substr(lastSlash + 1);
|
|
},
|
|
join: (...paths) => PATH.normalize(paths.join("/")),
|
|
join2: (l, r) => PATH.normalize(l + "/" + r)
|
|
};
|
|
|
|
var initRandomFill = () => {
|
|
if (typeof crypto == "object" && typeof crypto["getRandomValues"] == "function") {
|
|
// for modern web browsers
|
|
return view => crypto.getRandomValues(view);
|
|
} else if (ENVIRONMENT_IS_NODE) {
|
|
// for nodejs with or without crypto support included
|
|
try {
|
|
var crypto_module = require("crypto");
|
|
var randomFillSync = crypto_module["randomFillSync"];
|
|
if (randomFillSync) {
|
|
// nodejs with LTS crypto support
|
|
return view => crypto_module["randomFillSync"](view);
|
|
}
|
|
// very old nodejs with the original crypto API
|
|
var randomBytes = crypto_module["randomBytes"];
|
|
return view => (view.set(randomBytes(view.byteLength)), // Return the original view to match modern native implementations.
|
|
view);
|
|
} catch (e) {}
|
|
}
|
|
// we couldn't find a proper implementation, as Math.random() is not suitable for /dev/random, see emscripten-core/emscripten/pull/7096
|
|
abort("initRandomDevice");
|
|
};
|
|
|
|
var randomFill = view => (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).substr(1);
|
|
to = PATH_FS.resolve(to).substr(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 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 <= 127) {
|
|
len++;
|
|
} else if (c <= 2047) {
|
|
len += 2;
|
|
} else if (c >= 55296 && c <= 57343) {
|
|
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) {
|
|
// 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
|
|
// 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.charCodeAt(i);
|
|
// possibly a lead surrogate
|
|
if (u >= 55296 && u <= 57343) {
|
|
var u1 = str.charCodeAt(++i);
|
|
u = 65536 + ((u & 1023) << 10) | (u1 & 1023);
|
|
}
|
|
if (u <= 127) {
|
|
if (outIdx >= endIdx) break;
|
|
heap[outIdx++] = u;
|
|
} else if (u <= 2047) {
|
|
if (outIdx + 1 >= endIdx) break;
|
|
heap[outIdx++] = 192 | (u >> 6);
|
|
heap[outIdx++] = 128 | (u & 63);
|
|
} else if (u <= 65535) {
|
|
if (outIdx + 2 >= endIdx) break;
|
|
heap[outIdx++] = 224 | (u >> 12);
|
|
heap[outIdx++] = 128 | ((u >> 6) & 63);
|
|
heap[outIdx++] = 128 | (u & 63);
|
|
} else {
|
|
if (outIdx + 3 >= endIdx) break;
|
|
heap[outIdx++] = 240 | (u >> 18);
|
|
heap[outIdx++] = 128 | ((u >> 12) & 63);
|
|
heap[outIdx++] = 128 | ((u >> 6) & 63);
|
|
heap[outIdx++] = 128 | (u & 63);
|
|
}
|
|
}
|
|
// Null-terminate the pointer to the buffer.
|
|
heap[outIdx] = 0;
|
|
return outIdx - startIdx;
|
|
};
|
|
|
|
/** @type {function(string, boolean=, number=)} */ function 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 (typeof window != "undefined" && typeof window.prompt == "function") {
|
|
// 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
|
|
};
|
|
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.timestamp = 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.timestamp = 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 && 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: [ 3, 28, 127, 21, 4, 0, 1, 0, 17, 19, 26, 0, 18, 15, 23, 22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
|
|
};
|
|
},
|
|
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 && 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,
|
|
allocate: MEMFS.stream_ops.allocate,
|
|
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.timestamp = Date.now();
|
|
// add the new node to the parent
|
|
if (parent) {
|
|
parent.contents[name] = node;
|
|
parent.timestamp = node.timestamp;
|
|
}
|
|
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 : 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.timestamp);
|
|
attr.mtime = new Date(node.timestamp);
|
|
attr.ctime = new Date(node.timestamp);
|
|
// 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) {
|
|
if (attr.mode !== undefined) {
|
|
node.mode = attr.mode;
|
|
}
|
|
if (attr.timestamp !== undefined) {
|
|
node.timestamp = attr.timestamp;
|
|
}
|
|
if (attr.size !== undefined) {
|
|
MEMFS.resizeFileStorage(node, attr.size);
|
|
}
|
|
},
|
|
lookup(parent, name) {
|
|
throw MEMFS.doesNotExistError;
|
|
},
|
|
mknod(parent, name, mode, dev) {
|
|
return MEMFS.createNode(parent, name, mode, dev);
|
|
},
|
|
rename(old_node, new_dir, new_name) {
|
|
// if we're overwriting a directory at new_name, make sure it's empty.
|
|
if (FS.isDir(old_node.mode)) {
|
|
var new_node;
|
|
try {
|
|
new_node = FS.lookupNode(new_dir, new_name);
|
|
} catch (e) {}
|
|
if (new_node) {
|
|
for (var i in new_node.contents) {
|
|
throw new FS.ErrnoError(55);
|
|
}
|
|
}
|
|
}
|
|
// do the internal rewiring
|
|
delete old_node.parent.contents[old_node.name];
|
|
old_node.parent.timestamp = Date.now();
|
|
old_node.name = new_name;
|
|
new_dir.contents[new_name] = old_node;
|
|
new_dir.timestamp = old_node.parent.timestamp;
|
|
},
|
|
unlink(parent, name) {
|
|
delete parent.contents[name];
|
|
parent.timestamp = 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.timestamp = Date.now();
|
|
},
|
|
readdir(node) {
|
|
var entries = [ ".", ".." ];
|
|
for (var key of Object.keys(node.contents)) {
|
|
entries.push(key);
|
|
}
|
|
return entries;
|
|
},
|
|
symlink(parent, newname, oldpath) {
|
|
var node = MEMFS.createNode(parent, newname, 511 | 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.timestamp = 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];
|
|
}
|
|
}
|
|
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;
|
|
},
|
|
allocate(stream, offset, length) {
|
|
MEMFS.expandFileStorage(stream.node, offset + length);
|
|
stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length);
|
|
},
|
|
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;
|
|
}
|
|
}
|
|
};
|
|
|
|
/** @param {boolean=} noRunDep */ var asyncLoad = (url, onload, onerror, noRunDep) => {
|
|
var dep = !noRunDep ? getUniqueRunDependency(`al ${url}`) : "";
|
|
readAsync(url).then(arrayBuffer => {
|
|
onload(new Uint8Array(arrayBuffer));
|
|
if (dep) removeRunDependency(dep);
|
|
}, err => {
|
|
if (onerror) {
|
|
onerror();
|
|
} else {
|
|
throw `Loading data file "${url}" failed.`;
|
|
}
|
|
});
|
|
if (dep) addRunDependency(dep);
|
|
};
|
|
|
|
var FS_createDataFile = (parent, name, fileData, canRead, canWrite, canOwn) => {
|
|
FS.createDataFile(parent, name, fileData, canRead, canWrite, canOwn);
|
|
};
|
|
|
|
var preloadPlugins = Module["preloadPlugins"] || [];
|
|
|
|
var FS_handledByPreloadPlugin = (byteArray, fullname, finish, onerror) => {
|
|
// Ensure plugins are ready.
|
|
if (typeof Browser != "undefined") Browser.init();
|
|
var handled = false;
|
|
preloadPlugins.forEach(plugin => {
|
|
if (handled) return;
|
|
if (plugin["canHandle"](fullname)) {
|
|
plugin["handle"](byteArray, fullname, finish, onerror);
|
|
handled = true;
|
|
}
|
|
});
|
|
return handled;
|
|
};
|
|
|
|
var FS_createPreloadedFile = (parent, name, url, canRead, canWrite, onload, onerror, 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
|
|
function processData(byteArray) {
|
|
function finish(byteArray) {
|
|
preFinish?.();
|
|
if (!dontCreateFile) {
|
|
FS_createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
|
|
}
|
|
onload?.();
|
|
removeRunDependency(dep);
|
|
}
|
|
if (FS_handledByPreloadPlugin(byteArray, fullname, finish, () => {
|
|
onerror?.();
|
|
removeRunDependency(dep);
|
|
})) {
|
|
return;
|
|
}
|
|
finish(byteArray);
|
|
}
|
|
addRunDependency(dep);
|
|
if (typeof url == "string") {
|
|
asyncLoad(url, processData, onerror);
|
|
} else {
|
|
processData(url);
|
|
}
|
|
};
|
|
|
|
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 FS = {
|
|
root: null,
|
|
mounts: [],
|
|
devices: {},
|
|
streams: [],
|
|
nextInode: 1,
|
|
nameTable: null,
|
|
currentPath: "/",
|
|
initialized: false,
|
|
ignorePermissions: true,
|
|
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;
|
|
}
|
|
},
|
|
filesystems: null,
|
|
syncFSRequests: 0,
|
|
readFiles: {},
|
|
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;
|
|
}
|
|
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 = {}) {
|
|
path = PATH_FS.resolve(path);
|
|
if (!path) return {
|
|
path: "",
|
|
node: null
|
|
};
|
|
var defaults = {
|
|
follow_mount: true,
|
|
recurse_count: 0
|
|
};
|
|
opts = Object.assign(defaults, opts);
|
|
if (opts.recurse_count > 8) {
|
|
// max recursive lookup of 8
|
|
throw new FS.ErrnoError(32);
|
|
}
|
|
// 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;
|
|
}
|
|
current = FS.lookupNode(current, parts[i]);
|
|
current_path = PATH.join2(current_path, parts[i]);
|
|
// jump to the mount's root node if this is a mountpoint
|
|
if (FS.isMountpoint(current)) {
|
|
if (!islast || (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 (!islast || opts.follow) {
|
|
var count = 0;
|
|
while (FS.isLink(current.mode)) {
|
|
var link = FS.readlink(current_path);
|
|
current_path = PATH_FS.resolve(PATH.dirname(current_path), link);
|
|
var lookup = FS.lookupPath(current_path, {
|
|
recurse_count: opts.recurse_count + 1
|
|
});
|
|
current = lookup.node;
|
|
if (count++ > 40) {
|
|
// limit max consecutive symlinks to 40 (SYMLOOP_MAX).
|
|
throw new FS.ErrnoError(32);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return {
|
|
path: current_path,
|
|
node: current
|
|
};
|
|
},
|
|
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) {
|
|
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)) {
|
|
// TODO: check for O_SEARCH? (== search for dir only)
|
|
return 31;
|
|
}
|
|
}
|
|
return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
|
|
},
|
|
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;
|
|
},
|
|
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) & 255),
|
|
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
|
|
mounts.forEach(mount => {
|
|
if (!mount.type.syncfs) {
|
|
return done(null);
|
|
}
|
|
mount.type.syncfs(mount, populate, done);
|
|
});
|
|
},
|
|
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);
|
|
Object.keys(FS.nameTable).forEach(hash => {
|
|
var current = FS.nameTable[hash];
|
|
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 || name === "." || name === "..") {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
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) {
|
|
// NOTE: None of the defaults here are true. We're just returning safe and
|
|
// sane values.
|
|
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
|
|
};
|
|
var parent = FS.lookupPath(path, {
|
|
follow: true
|
|
}).node;
|
|
if (parent?.node_ops.statfs) {
|
|
Object.assign(rtn, parent.node_ops.statfs(parent.mount.opts.root));
|
|
}
|
|
return rtn;
|
|
},
|
|
create(path, mode = 438) {
|
|
mode &= 4095;
|
|
mode |= 32768;
|
|
return FS.mknod(path, mode, 0);
|
|
},
|
|
mkdir(path, mode = 511) {
|
|
mode &= 511 | 512;
|
|
mode |= 16384;
|
|
return FS.mknod(path, mode, 0);
|
|
},
|
|
mkdirTree(path, mode) {
|
|
var dirs = path.split("/");
|
|
var d = "";
|
|
for (var i = 0; i < dirs.length; ++i) {
|
|
if (!dirs[i]) continue;
|
|
d += "/" + dirs[i];
|
|
try {
|
|
FS.mkdir(d, mode);
|
|
} catch (e) {
|
|
if (e.errno != 20) throw e;
|
|
}
|
|
}
|
|
},
|
|
mkdev(path, mode, dev) {
|
|
if (typeof dev == "undefined") {
|
|
dev = mode;
|
|
mode = 438;
|
|
}
|
|
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) {}
|
|
// 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;
|
|
if (!node.node_ops.readdir) {
|
|
throw new FS.ErrnoError(54);
|
|
}
|
|
return node.node_ops.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;
|
|
if (!node) {
|
|
throw new FS.ErrnoError(44);
|
|
}
|
|
if (!node.node_ops.getattr) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
return node.node_ops.getattr(node);
|
|
},
|
|
lstat(path) {
|
|
return FS.stat(path, true);
|
|
},
|
|
chmod(path, mode, dontFollow) {
|
|
var node;
|
|
if (typeof path == "string") {
|
|
var lookup = FS.lookupPath(path, {
|
|
follow: !dontFollow
|
|
});
|
|
node = lookup.node;
|
|
} else {
|
|
node = path;
|
|
}
|
|
if (!node.node_ops.setattr) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
node.node_ops.setattr(node, {
|
|
mode: (mode & 4095) | (node.mode & ~4095),
|
|
timestamp: Date.now()
|
|
});
|
|
},
|
|
lchmod(path, mode) {
|
|
FS.chmod(path, mode, true);
|
|
},
|
|
fchmod(fd, mode) {
|
|
var stream = FS.getStreamChecked(fd);
|
|
FS.chmod(stream.node, mode);
|
|
},
|
|
chown(path, uid, gid, dontFollow) {
|
|
var node;
|
|
if (typeof path == "string") {
|
|
var lookup = FS.lookupPath(path, {
|
|
follow: !dontFollow
|
|
});
|
|
node = lookup.node;
|
|
} else {
|
|
node = path;
|
|
}
|
|
if (!node.node_ops.setattr) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
node.node_ops.setattr(node, {
|
|
timestamp: Date.now()
|
|
});
|
|
},
|
|
// we ignore the uid / gid for now
|
|
lchown(path, uid, gid) {
|
|
FS.chown(path, uid, gid, true);
|
|
},
|
|
fchown(fd, uid, gid) {
|
|
var stream = FS.getStreamChecked(fd);
|
|
FS.chown(stream.node, uid, gid);
|
|
},
|
|
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;
|
|
}
|
|
if (!node.node_ops.setattr) {
|
|
throw new FS.ErrnoError(63);
|
|
}
|
|
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);
|
|
}
|
|
node.node_ops.setattr(node, {
|
|
size: len,
|
|
timestamp: Date.now()
|
|
});
|
|
},
|
|
ftruncate(fd, len) {
|
|
var stream = FS.getStreamChecked(fd);
|
|
if ((stream.flags & 2097155) === 0) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
FS.truncate(stream.node, len);
|
|
},
|
|
utime(path, atime, mtime) {
|
|
var lookup = FS.lookupPath(path, {
|
|
follow: true
|
|
});
|
|
var node = lookup.node;
|
|
node.node_ops.setattr(node, {
|
|
timestamp: Math.max(atime, mtime)
|
|
});
|
|
},
|
|
open(path, flags, mode = 438) {
|
|
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;
|
|
if (typeof path == "object") {
|
|
node = path;
|
|
} else {
|
|
path = PATH.normalize(path);
|
|
try {
|
|
var lookup = FS.lookupPath(path, {
|
|
follow: !(flags & 131072)
|
|
});
|
|
node = lookup.node;
|
|
} catch (e) {}
|
|
}
|
|
// 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 {
|
|
// node doesn't exist, try to create it
|
|
node = FS.mknod(path, mode, 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 (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;
|
|
},
|
|
allocate(stream, offset, length) {
|
|
if (FS.isClosed(stream)) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
if (offset < 0 || length <= 0) {
|
|
throw new FS.ErrnoError(28);
|
|
}
|
|
if ((stream.flags & 2097155) === 0) {
|
|
throw new FS.ErrnoError(8);
|
|
}
|
|
if (!FS.isFile(stream.node.mode) && !FS.isDir(stream.node.mode)) {
|
|
throw new FS.ErrnoError(43);
|
|
}
|
|
if (!stream.stream_ops.allocate) {
|
|
throw new FS.ErrnoError(138);
|
|
}
|
|
stream.stream_ops.allocate(stream, offset, length);
|
|
},
|
|
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") {
|
|
throw new Error(`Invalid encoding type "${opts.encoding}"`);
|
|
}
|
|
var ret;
|
|
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") {
|
|
ret = UTF8ArrayToString(buf);
|
|
} else if (opts.encoding === "binary") {
|
|
ret = buf;
|
|
}
|
|
FS.close(stream);
|
|
return ret;
|
|
},
|
|
writeFile(path, data, opts = {}) {
|
|
opts.flags = opts.flags || 577;
|
|
var stream = FS.open(path, opts.flags, opts.mode);
|
|
if (typeof data == "string") {
|
|
var buf = new Uint8Array(lengthBytesUTF8(data) + 1);
|
|
var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length);
|
|
FS.write(stream, buf, 0, actualNumBytes, undefined, opts.canOwn);
|
|
} else if (ArrayBuffer.isView(data)) {
|
|
FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn);
|
|
} else {
|
|
throw new Error("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) {
|
|
randomLeft = randomFill(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.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
|
|
}
|
|
};
|
|
ret.parent = ret;
|
|
// make it look like a simple root node
|
|
return ret;
|
|
}
|
|
};
|
|
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 i = 0; i < FS.streams.length; i++) {
|
|
var stream = FS.streams[i];
|
|
if (!stream) {
|
|
continue;
|
|
}
|
|
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) {}
|
|
// ignore EEXIST
|
|
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.timestamp = 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.timestamp = Date.now();
|
|
}
|
|
return i;
|
|
}
|
|
});
|
|
return FS.mkdev(path, mode, dev);
|
|
},
|
|
forceLoadFile(obj) {
|
|
if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
|
|
if (typeof XMLHttpRequest != "undefined") {
|
|
throw new Error("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);
|
|
obj.usedBytes = obj.contents.length;
|
|
} 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)) throw new Error("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) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
|
|
if (to > datalength - 1) throw new Error("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)) throw new Error("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") throw new Error("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 (typeof XMLHttpRequest != "undefined") {
|
|
if (!ENVIRONMENT_IS_WORKER) throw "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
|
|
};
|
|
}
|
|
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 = {};
|
|
var keys = Object.keys(node.stream_ops);
|
|
keys.forEach(key => {
|
|
var fn = node.stream_ops[key];
|
|
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;
|
|
}
|
|
};
|
|
|
|
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 PATH.join2(dir, path);
|
|
},
|
|
doStat(func, path, buf) {
|
|
var stat = func(path);
|
|
HEAP32[((buf) >> 2)] = stat.dev;
|
|
HEAP32[(((buf) + (4)) >> 2)] = stat.mode;
|
|
HEAPU32[(((buf) + (8)) >> 2)] = stat.nlink;
|
|
HEAP32[(((buf) + (12)) >> 2)] = stat.uid;
|
|
HEAP32[(((buf) + (16)) >> 2)] = stat.gid;
|
|
HEAP32[(((buf) + (20)) >> 2)] = stat.rdev;
|
|
(tempI64 = [ stat.size >>> 0, (tempDouble = stat.size, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
|
|
HEAP32[(((buf) + (24)) >> 2)] = tempI64[0], HEAP32[(((buf) + (28)) >> 2)] = tempI64[1]);
|
|
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();
|
|
(tempI64 = [ Math.floor(atime / 1e3) >>> 0, (tempDouble = Math.floor(atime / 1e3),
|
|
(+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
|
|
HEAP32[(((buf) + (40)) >> 2)] = tempI64[0], HEAP32[(((buf) + (44)) >> 2)] = tempI64[1]);
|
|
HEAPU32[(((buf) + (48)) >> 2)] = (atime % 1e3) * 1e3 * 1e3;
|
|
(tempI64 = [ Math.floor(mtime / 1e3) >>> 0, (tempDouble = Math.floor(mtime / 1e3),
|
|
(+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
|
|
HEAP32[(((buf) + (56)) >> 2)] = tempI64[0], HEAP32[(((buf) + (60)) >> 2)] = tempI64[1]);
|
|
HEAPU32[(((buf) + (64)) >> 2)] = (mtime % 1e3) * 1e3 * 1e3;
|
|
(tempI64 = [ Math.floor(ctime / 1e3) >>> 0, (tempDouble = Math.floor(ctime / 1e3),
|
|
(+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
|
|
HEAP32[(((buf) + (72)) >> 2)] = tempI64[0], HEAP32[(((buf) + (76)) >> 2)] = tempI64[1]);
|
|
HEAPU32[(((buf) + (80)) >> 2)] = (ctime % 1e3) * 1e3 * 1e3;
|
|
(tempI64 = [ stat.ino >>> 0, (tempDouble = stat.ino, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
|
|
HEAP32[(((buf) + (88)) >> 2)] = tempI64[0], HEAP32[(((buf) + (92)) >> 2)] = tempI64[1]);
|
|
return 0;
|
|
},
|
|
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:
|
|
return 0;
|
|
}
|
|
// Pretend that the locking is successful.
|
|
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 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 __emscripten_memcpy_js = (dest, src, num) => HEAPU8.copyWithin(dest, src, src + num);
|
|
|
|
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);
|
|
};
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
var convertI32PairToI53Checked = (lo, hi) => ((hi + 2097152) >>> 0 < 4194305 - !!lo) ? (lo >>> 0) + hi * 4294967296 : NaN;
|
|
|
|
function _fd_seek(fd, offset_low, offset_high, whence, newOffset) {
|
|
var offset = convertI32PairToI53Checked(offset_low, offset_high);
|
|
try {
|
|
if (isNaN(offset)) return 61;
|
|
var stream = SYSCALLS.getStreamFromFD(fd);
|
|
FS.llseek(stream, offset, whence);
|
|
(tempI64 = [ stream.position >>> 0, (tempDouble = stream.position, (+(Math.abs(tempDouble))) >= 1 ? (tempDouble > 0 ? (+(Math.floor((tempDouble) / 4294967296))) >>> 0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble))) >>> 0)) / 4294967296))))) >>> 0) : 0) ],
|
|
HEAP32[((newOffset) >> 2)] = tempI64[0], HEAP32[(((newOffset) + (4)) >> 2)] = tempI64[1]);
|
|
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 stringToUTF8 = (str, outPtr, maxBytesToWrite) => stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite);
|
|
|
|
var stringToNewUTF8 = str => {
|
|
var size = lengthBytesUTF8(str) + 1;
|
|
var ret = _malloc(size);
|
|
if (ret) stringToUTF8(str, ret, size);
|
|
return ret;
|
|
};
|
|
|
|
var FS_createPath = FS.createPath;
|
|
|
|
var FS_unlink = path => FS.unlink(path);
|
|
|
|
var FS_createLazyFile = FS.createLazyFile;
|
|
|
|
var FS_createDevice = FS.createDevice;
|
|
|
|
FS.createPreloadedFile = FS_createPreloadedFile;
|
|
|
|
FS.staticInit();
|
|
|
|
// Set module methods based on EXPORTED_RUNTIME_METHODS
|
|
Module["FS_createPath"] = FS.createPath;
|
|
|
|
Module["FS_createDataFile"] = FS.createDataFile;
|
|
|
|
Module["FS_createPreloadedFile"] = FS.createPreloadedFile;
|
|
|
|
Module["FS_unlink"] = FS.unlink;
|
|
|
|
Module["FS_createLazyFile"] = FS.createLazyFile;
|
|
|
|
Module["FS_createDevice"] = FS.createDevice;
|
|
|
|
// This error may happen quite a bit. To avoid overhead we reuse it (and
|
|
// suffer a lack of stack info).
|
|
MEMFS.doesNotExistError = new FS.ErrnoError(44);
|
|
|
|
/** @suppress {checkTypes} */ MEMFS.doesNotExistError.stack = "<generic error, no stack>";
|
|
|
|
var wasmImports = {
|
|
/** @export */ __assert_fail: ___assert_fail,
|
|
/** @export */ __syscall_fcntl64: ___syscall_fcntl64,
|
|
/** @export */ __syscall_ioctl: ___syscall_ioctl,
|
|
/** @export */ __syscall_openat: ___syscall_openat,
|
|
/** @export */ _emscripten_memcpy_js: __emscripten_memcpy_js,
|
|
/** @export */ emscripten_resize_heap: _emscripten_resize_heap,
|
|
/** @export */ fd_close: _fd_close,
|
|
/** @export */ fd_read: _fd_read,
|
|
/** @export */ fd_seek: _fd_seek,
|
|
/** @export */ fd_write: _fd_write
|
|
};
|
|
|
|
var wasmExports = createWasm();
|
|
|
|
var ___wasm_call_ctors = () => (___wasm_call_ctors = wasmExports["__wasm_call_ctors"])();
|
|
|
|
var _compressFile = Module["_compressFile"] = (a0, a1) => (_compressFile = Module["_compressFile"] = wasmExports["compressFile"])(a0, a1);
|
|
|
|
var _decompressFile = Module["_decompressFile"] = (a0, a1) => (_decompressFile = Module["_decompressFile"] = wasmExports["decompressFile"])(a0, a1);
|
|
|
|
var _malloc = a0 => (_malloc = wasmExports["malloc"])(a0);
|
|
|
|
var _free = Module["_free"] = a0 => (_free = Module["_free"] = wasmExports["free"])(a0);
|
|
|
|
var __emscripten_stack_restore = a0 => (__emscripten_stack_restore = wasmExports["_emscripten_stack_restore"])(a0);
|
|
|
|
var __emscripten_stack_alloc = a0 => (__emscripten_stack_alloc = wasmExports["_emscripten_stack_alloc"])(a0);
|
|
|
|
var _emscripten_stack_get_current = () => (_emscripten_stack_get_current = wasmExports["emscripten_stack_get_current"])();
|
|
|
|
var dynCall_jiji = Module["dynCall_jiji"] = (a0, a1, a2, a3, a4) => (dynCall_jiji = Module["dynCall_jiji"] = wasmExports["dynCall_jiji"])(a0, a1, a2, a3, a4);
|
|
|
|
// include: postamble.js
|
|
// === Auto-generated postamble setup entry stuff ===
|
|
Module["addRunDependency"] = addRunDependency;
|
|
|
|
Module["removeRunDependency"] = removeRunDependency;
|
|
|
|
Module["stringToNewUTF8"] = stringToNewUTF8;
|
|
|
|
Module["FS_createPreloadedFile"] = FS_createPreloadedFile;
|
|
|
|
Module["FS_unlink"] = FS_unlink;
|
|
|
|
Module["FS_createPath"] = FS_createPath;
|
|
|
|
Module["FS_createDevice"] = FS_createDevice;
|
|
|
|
Module["FS"] = FS;
|
|
|
|
Module["FS_createDataFile"] = FS_createDataFile;
|
|
|
|
Module["FS_createLazyFile"] = FS_createLazyFile;
|
|
|
|
var calledRun;
|
|
|
|
dependenciesFulfilled = function runCaller() {
|
|
// If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)
|
|
if (!calledRun) run();
|
|
if (!calledRun) dependenciesFulfilled = runCaller;
|
|
};
|
|
|
|
// try this again later, after new deps are fulfilled
|
|
function run() {
|
|
if (runDependencies > 0) {
|
|
return;
|
|
}
|
|
preRun();
|
|
// a preRun added a dependency, run will be called later
|
|
if (runDependencies > 0) {
|
|
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
|
|
if (calledRun) return;
|
|
calledRun = true;
|
|
Module["calledRun"] = true;
|
|
if (ABORT) return;
|
|
initRuntime();
|
|
readyPromiseResolve(Module);
|
|
Module["onRuntimeInitialized"]?.();
|
|
postRun();
|
|
}
|
|
if (Module["setStatus"]) {
|
|
Module["setStatus"]("Running...");
|
|
setTimeout(() => {
|
|
setTimeout(() => Module["setStatus"](""), 1);
|
|
doRun();
|
|
}, 1);
|
|
} else {
|
|
doRun();
|
|
}
|
|
}
|
|
|
|
if (Module["preInit"]) {
|
|
if (typeof Module["preInit"] == "function") Module["preInit"] = [ Module["preInit"] ];
|
|
while (Module["preInit"].length > 0) {
|
|
Module["preInit"].pop()();
|
|
}
|
|
}
|
|
|
|
run();
|
|
|
|
// end include: postamble.js
|
|
// include: postamble_modularize.js
|
|
// In MODULARIZE mode we wrap the generated code in a factory function
|
|
// and return either the Module itself, or a promise of the module.
|
|
// We assign to the `moduleRtn` global here and configure closure to see
|
|
// this as and extern so it won't get minified.
|
|
moduleRtn = readyPromise;
|
|
|
|
|
|
return moduleRtn;
|
|
}
|
|
);
|
|
})();
|
|
if (typeof exports === 'object' && typeof module === 'object')
|
|
module.exports = setupModule;
|
|
else if (typeof define === 'function' && define['amd'])
|
|
define([], () => setupModule);
|