// The Module object: Our interface to the outside world. We import
// and export values on it. There are various ways Module can be used:
// 1. Not defined. We create it here
// 2. A function parameter, function(Module) { ..generated code.. }
// 3. pre-run appended it, var Module = {}; ..generated code..
// 4. External script tag defines var Module.
// We need to check if Module already exists (e.g. case 3 above).
// Substitution will be replaced with actual code on later stage of the build,
// this way Closure Compiler will not mangle it (e.g. case 4. above).
// Note that if you want to run closure, and also to use Module
// after the generated code, you will need to define var Module = {};
// before the code. Then that object will be used in the code, and you
// can continue to use Module afterwards as well.
var Module = typeof Module != 'undefined' ? Module : {};
// See https://caniuse.com/mdn-javascript_builtins_object_assign
// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
// {{PRE_JSES}}
// Sometimes an existing Module object exists with properties
// meant to overwrite the default module functionality. Here
// we collect those properties and reapply _after_ we configure
// the current environment's defaults to avoid having to be so
// defensive during initialization.
var moduleOverrides = Object.assign({}, Module);
var arguments_ = [];
var thisProgram = './this.program';
var quit_ = (status, toThrow) => {
throw toThrow;
};
// Determine the runtime environment we are in. You can customize this by
// setting the ENVIRONMENT setting at compile time (see settings.js).
// Attempt to auto-detect the environment
var ENVIRONMENT_IS_WEB = typeof window == 'object';
var ENVIRONMENT_IS_WORKER = typeof importScripts == 'function';
// N.b. Electron.js environment is simultaneously a NODE-environment, but
// also a web environment.
var ENVIRONMENT_IS_NODE = typeof process == 'object' && typeof process.versions == 'object' && typeof process.versions.node == 'string';
var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
if (Module['ENVIRONMENT']) {
throw new Error('Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -s ENVIRONMENT=web or -s ENVIRONMENT=node)');
}
// `/` should be present at the end if `scriptDirectory` is not empty
var scriptDirectory = '';
function locateFile(path) {
if (Module['locateFile']) {
return Module['locateFile'](path, scriptDirectory);
}
return scriptDirectory + path;
}
// Hooks that are implemented differently in different runtime environments.
var read_,
readAsync,
readBinary,
setWindowTitle;
// Normally we don't log exceptions but instead let them bubble out the top
// level where the embedding environment (e.g. the browser) can handle
// them.
// However under v8 and node we sometimes exit the process direcly in which case
// its up to use us to log the exception before exiting.
// If we fix https://github.com/emscripten-core/emscripten/issues/15080
// this may no longer be needed under node.
function logExceptionOnExit(e) {
if (e instanceof ExitStatus) return;
let toLog = e;
if (e && typeof e == 'object' && e.stack) {
toLog = [e, e.stack];
}
err('exiting due to exception: ' + toLog);
}
var fs;
var nodePath;
var requireNodeFS;
if (ENVIRONMENT_IS_NODE) {
if (!(typeof process == 'object' && typeof require == 'function')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');
if (ENVIRONMENT_IS_WORKER) {
scriptDirectory = require('path').dirname(scriptDirectory) + '/';
} else {
scriptDirectory = __dirname + '/';
}
// include: node_shell_read.js
requireNodeFS = () => {
// Use nodePath as the indicator for these not being initialized,
// since in some environments a global fs may have already been
// created.
if (!nodePath) {
fs = require('fs');
nodePath = require('path');
}
};
read_ = function shell_read(filename, binary) {
requireNodeFS();
filename = nodePath['normalize'](filename);
return fs.readFileSync(filename, binary ? undefined : 'utf8');
};
readBinary = (filename) => {
var ret = read_(filename, true);
if (!ret.buffer) {
ret = new Uint8Array(ret);
}
assert(ret.buffer);
return ret;
};
readAsync = (filename, onload, onerror) => {
requireNodeFS();
filename = nodePath['normalize'](filename);
fs.readFile(filename, function(err, data) {
if (err) onerror(err);
else onload(data.buffer);
});
};
// end include: node_shell_read.js
if (process['argv'].length > 1) {
thisProgram = process['argv'][1].replace(/\\/g, '/');
}
arguments_ = process['argv'].slice(2);
if (typeof module != 'undefined') {
module['exports'] = Module;
}
process['on']('uncaughtException', function(ex) {
// suppress ExitStatus exceptions from showing an error
if (!(ex instanceof ExitStatus)) {
throw ex;
}
});
// Without this older versions of node (< v15) will log unhandled rejections
// but return 0, which is not normally the desired behaviour. This is
// not be needed with node v15 and about because it is now the default
// behaviour:
// See https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode
process['on']('unhandledRejection', function(reason) { throw reason; });
quit_ = (status, toThrow) => {
if (keepRuntimeAlive()) {
process['exitCode'] = status;
throw toThrow;
}
logExceptionOnExit(toThrow);
process['exit'](status);
};
Module['inspect'] = function () { return '[Emscripten Module object]'; };
} else
if (ENVIRONMENT_IS_SHELL) {
if ((typeof process == 'object' && typeof require === 'function') || typeof window == 'object' || typeof importScripts == 'function') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');
if (typeof read != 'undefined') {
read_ = function shell_read(f) {
return read(f);
};
}
readBinary = function readBinary(f) {
let data;
if (typeof readbuffer == 'function') {
return new Uint8Array(readbuffer(f));
}
data = read(f, 'binary');
assert(typeof data == 'object');
return data;
};
readAsync = function readAsync(f, onload, onerror) {
setTimeout(() => onload(readBinary(f)), 0);
};
if (typeof scriptArgs != 'undefined') {
arguments_ = scriptArgs;
} else if (typeof arguments != 'undefined') {
arguments_ = arguments;
}
if (typeof quit == 'function') {
quit_ = (status, toThrow) => {
// Unlike node which has process.exitCode, d8 has no such mechanism. So we
// have no way to set the exit code and then let the program exit with
// that code when it naturally stops running (say, when all setTimeouts
// have completed). For that reason we must call `quit` - the only way to
// set the exit code - but quit also halts immediately, so we need to be
// careful of whether the runtime is alive or not, which is why this code
// path looks different than node. It also has the downside that it will
// halt the entire program when no code remains to run, which means this
// is not friendly for bundling this code into a larger codebase, and for
// that reason the "shell" environment is mainly useful for testing whole
// programs by themselves, basically.
if (runtimeKeepaliveCounter) {
throw toThrow;
}
logExceptionOnExit(toThrow);
quit(status);
};
}
if (typeof print != 'undefined') {
// Prefer to use print/printErr where they exist, as they usually work better.
if (typeof console == 'undefined') console = /** @type{!Console} */({});
console.log = /** @type{!function(this:Console, ...*): undefined} */ (print);
console.warn = console.error = /** @type{!function(this:Console, ...*): undefined} */ (typeof printErr != 'undefined' ? printErr : print);
}
} else
// Note that this includes Node.js workers when relevant (pthreads is enabled).
// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
// ENVIRONMENT_IS_NODE.
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilled
scriptDirectory = self.location.href;
} else if (typeof document != 'undefined' && document.currentScript) { // web
scriptDirectory = document.currentScript.src;
}
// blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them.
// otherwise, slice off the final part of the url to find the script directory.
// if scriptDirectory does not contain a slash, lastIndexOf will return -1,
// and scriptDirectory will correctly be replaced with an empty string.
// If scriptDirectory contains a query (starting with ?) or a fragment (starting with #),
// they are removed because they could contain a slash.
if (scriptDirectory.indexOf('blob:') !== 0) {
scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, "").lastIndexOf('/')+1);
} else {
scriptDirectory = '';
}
if (!(typeof window == 'object' || typeof importScripts == 'function')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');
// Differentiate the Web Worker from the Node Worker case, as reading must
// be done differently.
{
// include: web_or_worker_shell_read.js
read_ = (url) => {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false);
xhr.send(null);
return xhr.responseText;
}
if (ENVIRONMENT_IS_WORKER) {
readBinary = (url) => {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false);
xhr.responseType = 'arraybuffer';
xhr.send(null);
return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response));
};
}
readAsync = (url, onload, onerror) => {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.responseType = 'arraybuffer';
xhr.onload = () => {
if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
onload(xhr.response);
return;
}
onerror();
};
xhr.onerror = onerror;
xhr.send(null);
}
// end include: web_or_worker_shell_read.js
}
setWindowTitle = (title) => document.title = title;
} else
{
throw new Error('environment detection error');
}
var out = Module['print'] || console.log.bind(console);
var err = Module['printErr'] || console.warn.bind(console);
// Merge back in the overrides
Object.assign(Module, moduleOverrides);
// Free the object hierarchy contained in the overrides, this lets the GC
// reclaim data used e.g. in memoryInitializerRequest, which is a large typed array.
moduleOverrides = null;
checkIncomingModuleAPI();
// Emit code to handle expected values on the Module object. This applies Module.x
// to the proper local x. This has two benefits: first, we only emit it if it is
// expected to arrive, and second, by using a local everywhere else that can be
// minified.
if (Module['arguments']) arguments_ = Module['arguments'];legacyModuleProp('arguments', 'arguments_');
if (Module['thisProgram']) thisProgram = Module['thisProgram'];legacyModuleProp('thisProgram', 'thisProgram');
if (Module['quit']) quit_ = Module['quit'];legacyModuleProp('quit', 'quit_');
// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message
// Assertions on removed incoming Module JS APIs.
assert(typeof Module['memoryInitializerPrefixURL'] == 'undefined', 'Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['pthreadMainPrefixURL'] == 'undefined', 'Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['cdInitializerPrefixURL'] == 'undefined', 'Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['filePackagePrefixURL'] == 'undefined', 'Module.filePackagePrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['read'] == 'undefined', 'Module.read option was removed (modify read_ in JS)');
assert(typeof Module['readAsync'] == 'undefined', 'Module.readAsync option was removed (modify readAsync in JS)');
assert(typeof Module['readBinary'] == 'undefined', 'Module.readBinary option was removed (modify readBinary in JS)');
assert(typeof Module['setWindowTitle'] == 'undefined', 'Module.setWindowTitle option was removed (modify setWindowTitle in JS)');
assert(typeof Module['TOTAL_MEMORY'] == 'undefined', 'Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY');
legacyModuleProp('read', 'read_');
legacyModuleProp('readAsync', 'readAsync');
legacyModuleProp('readBinary', 'readBinary');
legacyModuleProp('setWindowTitle', 'setWindowTitle');
var IDBFS = 'IDBFS is no longer included by default; build with -lidbfs.js';
var PROXYFS = 'PROXYFS is no longer included by default; build with -lproxyfs.js';
var WORKERFS = 'WORKERFS is no longer included by default; build with -lworkerfs.js';
var NODEFS = 'NODEFS is no longer included by default; build with -lnodefs.js';
assert(!ENVIRONMENT_IS_SHELL, "shell environment detected but not enabled at build time. Add 'shell' to `-s ENVIRONMENT` to enable.");
var STACK_ALIGN = 16;
var POINTER_SIZE = 4;
function getNativeTypeSize(type) {
switch (type) {
case 'i1': case 'i8': return 1;
case 'i16': return 2;
case 'i32': return 4;
case 'i64': return 8;
case 'float': return 4;
case 'double': return 8;
default: {
if (type[type.length - 1] === '*') {
return POINTER_SIZE;
} else if (type[0] === 'i') {
const bits = Number(type.substr(1));
assert(bits % 8 === 0, 'getNativeTypeSize invalid bits ' + bits + ', type ' + type);
return bits / 8;
} else {
return 0;
}
}
}
}
function warnOnce(text) {
if (!warnOnce.shown) warnOnce.shown = {};
if (!warnOnce.shown[text]) {
warnOnce.shown[text] = 1;
err(text);
}
}
// include: runtime_functions.js
// Wraps a JS function as a wasm function with a given signature.
function convertJsFunctionToWasm(func, sig) {
// If the type reflection proposal is available, use the new
// "WebAssembly.Function" constructor.
// Otherwise, construct a minimal wasm module importing the JS function and
// re-exporting it.
if (typeof WebAssembly.Function == "function") {
var typeNames = {
'i': 'i32',
'j': 'i64',
'f': 'f32',
'd': 'f64'
};
var type = {
parameters: [],
results: sig[0] == 'v' ? [] : [typeNames[sig[0]]]
};
for (var i = 1; i < sig.length; ++i) {
type.parameters.push(typeNames[sig[i]]);
}
return new WebAssembly.Function(type, func);
}
// The module is static, with the exception of the type section, which is
// generated based on the signature passed in.
var typeSection = [
0x01, // id: section,
0x00, // length: 0 (placeholder)
0x01, // count: 1
0x60, // form: func
];
var sigRet = sig.slice(0, 1);
var sigParam = sig.slice(1);
var typeCodes = {
'i': 0x7f, // i32
'j': 0x7e, // i64
'f': 0x7d, // f32
'd': 0x7c, // f64
};
// Parameters, length + signatures
typeSection.push(sigParam.length);
for (var i = 0; i < sigParam.length; ++i) {
typeSection.push(typeCodes[sigParam[i]]);
}
// Return values, length + signatures
// With no multi-return in MVP, either 0 (void) or 1 (anything else)
if (sigRet == 'v') {
typeSection.push(0x00);
} else {
typeSection = typeSection.concat([0x01, typeCodes[sigRet]]);
}
// Write the overall length of the type section back into the section header
// (excepting the 2 bytes for the section id and length)
typeSection[1] = typeSection.length - 2;
// Rest of the module is static
var bytes = new Uint8Array([
0x00, 0x61, 0x73, 0x6d, // magic ("\0asm")
0x01, 0x00, 0x00, 0x00, // version: 1
].concat(typeSection, [
0x02, 0x07, // import section
// (import "e" "f" (func 0 (type 0)))
0x01, 0x01, 0x65, 0x01, 0x66, 0x00, 0x00,
0x07, 0x05, // export section
// (export "f" (func 0 (type 0)))
0x01, 0x01, 0x66, 0x00, 0x00,
]));
// We can compile this wasm module synchronously because it is very small.
// This accepts an import (at "e.f"), that it reroutes to an export (at "f")
var module = new WebAssembly.Module(bytes);
var instance = new WebAssembly.Instance(module, {
'e': {
'f': func
}
});
var wrappedFunc = instance.exports['f'];
return wrappedFunc;
}
var freeTableIndexes = [];
// Weak map of functions in the table to their indexes, created on first use.
var functionsInTableMap;
function getEmptyTableSlot() {
// Reuse a free index if there is one, otherwise grow.
if (freeTableIndexes.length) {
return freeTableIndexes.pop();
}
// Grow the table
try {
wasmTable.grow(1);
} catch (err) {
if (!(err instanceof RangeError)) {
throw err;
}
throw 'Unable to grow wasm table. Set ALLOW_TABLE_GROWTH.';
}
return wasmTable.length - 1;
}
function updateTableMap(offset, count) {
for (var i = offset; i < offset + count; i++) {
var item = getWasmTableEntry(i);
// Ignore null values.
if (item) {
functionsInTableMap.set(item, i);
}
}
}
/**
* Add a function to the table.
* 'sig' parameter is required if the function being added is a JS function.
* @param {string=} sig
*/
function addFunction(func, sig) {
assert(typeof func != 'undefined');
// Check if the function is already in the table, to ensure each function
// gets a unique index. First, create the map if this is the first use.
if (!functionsInTableMap) {
functionsInTableMap = new WeakMap();
updateTableMap(0, wasmTable.length);
}
if (functionsInTableMap.has(func)) {
return functionsInTableMap.get(func);
}
// It's not in the table, add it now.
var ret = getEmptyTableSlot();
// Set the new value.
try {
// Attempting to call this with JS function will cause of table.set() to fail
setWasmTableEntry(ret, func);
} catch (err) {
if (!(err instanceof TypeError)) {
throw err;
}
assert(typeof sig != 'undefined', 'Missing signature argument to addFunction: ' + func);
var wrapped = convertJsFunctionToWasm(func, sig);
setWasmTableEntry(ret, wrapped);
}
functionsInTableMap.set(func, ret);
return ret;
}
function removeFunction(index) {
functionsInTableMap.delete(getWasmTableEntry(index));
freeTableIndexes.push(index);
}
// end include: runtime_functions.js
// include: runtime_debug.js
function legacyModuleProp(prop, newName) {
if (!Object.getOwnPropertyDescriptor(Module, prop)) {
Object.defineProperty(Module, prop, {
configurable: true,
get: function() {
abort('Module.' + prop + ' has been replaced with plain ' + newName + ' (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)');
}
});
}
}
function ignoredModuleProp(prop) {
if (Object.getOwnPropertyDescriptor(Module, prop)) {
abort('`Module.' + prop + '` was supplied but `' + prop + '` not included in INCOMING_MODULE_JS_API');
}
}
function unexportedMessage(sym, isFSSybol) {
var msg = "'" + sym + "' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)";
if (isFSSybol) {
msg += '. Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you';
}
return msg;
}
function unexportedRuntimeSymbol(sym, isFSSybol) {
if (!Object.getOwnPropertyDescriptor(Module, sym)) {
Object.defineProperty(Module, sym, {
configurable: true,
get: function() {
abort(unexportedMessage(sym, isFSSybol));
}
});
}
}
function unexportedRuntimeFunction(sym, isFSSybol) {
if (!Object.getOwnPropertyDescriptor(Module, sym)) {
Module[sym] = () => abort(unexportedMessage(sym, isFSSybol));
}
}
// end include: runtime_debug.js
var tempRet0 = 0;
var setTempRet0 = (value) => { tempRet0 = value; };
var getTempRet0 = () => tempRet0;
// === Preamble library stuff ===
// Documentation for the public APIs defined in this file must be updated in:
// site/source/docs/api_reference/preamble.js.rst
// A prebuilt local version of the documentation is available at:
// site/build/text/docs/api_reference/preamble.js.txt
// You can also build docs locally as HTML or other formats in site/
// An online HTML version (which may be of a different version of Emscripten)
// is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html
var wasmBinary;
if (Module['wasmBinary']) wasmBinary = Module['wasmBinary'];legacyModuleProp('wasmBinary', 'wasmBinary');
var noExitRuntime = Module['noExitRuntime'] || true;legacyModuleProp('noExitRuntime', 'noExitRuntime');
if (typeof WebAssembly != 'object') {
abort('no native wasm support detected');
}
// include: runtime_safe_heap.js
// In MINIMAL_RUNTIME, setValue() and getValue() are only available when building with safe heap enabled, for heap safety checking.
// In traditional runtime, setValue() and getValue() are always available (although their use is highly discouraged due to perf penalties)
/** @param {number} ptr
@param {number} value
@param {string} type
@param {number|boolean=} noSafe */
function setValue(ptr, value, type = 'i8', noSafe) {
if (type.charAt(type.length-1) === '*') type = 'i32';
switch (type) {
case 'i1': HEAP8[((ptr)>>0)] = value; break;
case 'i8': HEAP8[((ptr)>>0)] = value; break;
case 'i16': HEAP16[((ptr)>>1)] = value; break;
case 'i32': HEAP32[((ptr)>>2)] = value; break;
case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((ptr)>>2)] = tempI64[0],HEAP32[(((ptr)+(4))>>2)] = tempI64[1]); break;
case 'float': HEAPF32[((ptr)>>2)] = value; break;
case 'double': HEAPF64[((ptr)>>3)] = value; break;
default: abort('invalid type for setValue: ' + type);
}
}
/** @param {number} ptr
@param {string} type
@param {number|boolean=} noSafe */
function getValue(ptr, type = 'i8', noSafe) {
if (type.charAt(type.length-1) === '*') type = 'i32';
switch (type) {
case 'i1': return HEAP8[((ptr)>>0)];
case 'i8': return HEAP8[((ptr)>>0)];
case 'i16': return HEAP16[((ptr)>>1)];
case 'i32': return HEAP32[((ptr)>>2)];
case 'i64': return HEAP32[((ptr)>>2)];
case 'float': return HEAPF32[((ptr)>>2)];
case 'double': return Number(HEAPF64[((ptr)>>3)]);
default: abort('invalid type for getValue: ' + type);
}
return null;
}
// end include: runtime_safe_heap.js
// Wasm globals
var wasmMemory;
//========================================
// Runtime essentials
//========================================
// whether we are quitting the application. no code should run after this.
// set in exit() and abort()
var ABORT = false;
// set by exit() and abort(). Passed to 'onExit' handler.
// NOTE: This is also used as the process return code code in shell environments
// but only when noExitRuntime is false.
var EXITSTATUS;
/** @type {function(*, string=)} */
function assert(condition, text) {
if (!condition) {
abort('Assertion failed' + (text ? ': ' + text : ''));
}
}
// Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
function getCFunc(ident) {
var func = Module['_' + ident]; // closure exported function
assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported');
return func;
}
// C calling interface.
/** @param {string|null=} returnType
@param {Array=} argTypes
@param {Arguments|Array=} args
@param {Object=} opts */
function ccall(ident, returnType, argTypes, args, opts) {
// For fast lookup of conversion functions
var toC = {
'string': function(str) {
var ret = 0;
if (str !== null && str !== undefined && str !== 0) { // null string
// at most 4 bytes per UTF-8 code point, +1 for the trailing '\0'
var len = (str.length << 2) + 1;
ret = stackAlloc(len);
stringToUTF8(str, ret, len);
}
return ret;
},
'array': function(arr) {
var ret = stackAlloc(arr.length);
writeArrayToMemory(arr, ret);
return ret;
}
};
function convertReturnValue(ret) {
if (returnType === 'string') return UTF8ToString(ret);
if (returnType === 'boolean') return Boolean(ret);
return ret;
}
var func = getCFunc(ident);
var cArgs = [];
var stack = 0;
assert(returnType !== 'array', 'Return type should not be "array".');
if (args) {
for (var i = 0; i < args.length; i++) {
var converter = toC[argTypes[i]];
if (converter) {
if (stack === 0) stack = stackSave();
cArgs[i] = converter(args[i]);
} else {
cArgs[i] = args[i];
}
}
}
var ret = func.apply(null, cArgs);
function onDone(ret) {
if (stack !== 0) stackRestore(stack);
return convertReturnValue(ret);
}
ret = onDone(ret);
return ret;
}
/** @param {string=} returnType
@param {Array=} argTypes
@param {Object=} opts */
function cwrap(ident, returnType, argTypes, opts) {
return function() {
return ccall(ident, returnType, argTypes, arguments, opts);
}
}
// We used to include malloc/free by default in the past. Show a helpful error in
// builds with assertions.
function _free() {
// Show a helpful error since we used to include free by default in the past.
abort("free() called but not included in the build - add '_free' to EXPORTED_FUNCTIONS");
}
// include: runtime_legacy.js
var ALLOC_NORMAL = 0; // Tries to use _malloc()
var ALLOC_STACK = 1; // Lives for the duration of the current function call
/**
* allocate(): This function is no longer used by emscripten but is kept around to avoid
* breaking external users.
* You should normally not use allocate(), and instead allocate
* memory using _malloc()/stackAlloc(), initialize it with
* setValue(), and so forth.
* @param {(Uint8Array|Array<number>)} slab: An array of data.
* @param {number=} allocator : How to allocate memory, see ALLOC_*
*/
function allocate(slab, allocator) {
var ret;
assert(typeof allocator == 'number', 'allocate no longer takes a type argument')
assert(typeof slab != 'number', 'allocate no longer takes a number as arg0')
if (allocator == ALLOC_STACK) {
ret = stackAlloc(slab.length);
} else {
ret = _malloc(slab.length);
}
if (!slab.subarray && !slab.slice) {
slab = new Uint8Array(slab);
}
HEAPU8.set(slab, ret);
return ret;
}
// end include: runtime_legacy.js
// include: runtime_strings.js
// runtime_strings.js: Strings related runtime functions that are part of both MINIMAL_RUNTIME and regular runtime.
// Given a pointer 'ptr' 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.
var UTF8Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf8') : undefined;
/**
* @param {number} idx
* @param {number=} maxBytesToRead
* @return {string}
*/
function UTF8ArrayToString(heap, idx, maxBytesToRead) {
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 means Infinity)
while (heap[endPtr] && !(endPtr >= endIdx)) ++endPtr;
if (endPtr - idx > 16 && heap.subarray && UTF8Decoder) {
return UTF8Decoder.decode(heap.subarray(idx, endPtr));
} else {
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 = heap[idx++];
if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }
var u1 = heap[idx++] & 63;
if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }
var u2 = heap[idx++] & 63;
if ((u0 & 0xF0) == 0xE0) {
u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
} else {
if ((u0 & 0xF8) != 0xF0) warnOnce('Invalid UTF-8 leading byte 0x' + u0.toString(16) + ' encountered when deserializing a UTF-8 string in wasm memory to a JS string!');
u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heap[idx++] & 63);
}
if (u0 < 0x10000) {
str += String.fromCharCode(u0);
} else {
var ch = u0 - 0x10000;
str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
}
}
}
return str;
}
// 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.
// 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
// style or the other.
/**
* @param {number} ptr
* @param {number=} maxBytesToRead
* @return {string}
*/
function UTF8ToString(ptr, maxBytesToRead) {
;
return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : '';
}
// Copies the given Javascript String object 'str' to the given byte array at address 'outIdx',
// encoded in UTF8 form and null-terminated. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
// str: the Javascript string to copy.
// heap: the array to copy to. Each index in this array is assumed to be one 8-byte element.
// outIdx: The starting offset in the array to begin the copying.
// maxBytesToWrite: The maximum number of bytes this function can write to the array.
// This count should include the null terminator,
// i.e. if maxBytesToWrite=1, only the null terminator will be written and nothing else.
// maxBytesToWrite=0 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.
function stringToUTF8Array(str, heap, outIdx, maxBytesToWrite) {
if (!(maxBytesToWrite > 0)) // Parameter maxBytesToWrite is not optional. Negative values, 0, null, undefined and false each don't write out any bytes.
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 >= 0xD800 && u <= 0xDFFF) {
var u1 = str.charCodeAt(++i);
u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF);
}
if (u <= 0x7F) {
if (outIdx >= endIdx) break;
heap[outIdx++] = u;
} else if (u <= 0x7FF) {
if (outIdx + 1 >= endIdx) break;
heap[outIdx++] = 0xC0 | (u >> 6);
heap[outIdx++] = 0x80 | (u & 63);
} else if (u <= 0xFFFF) {
if (outIdx + 2 >= endIdx) break;
heap[outIdx++] = 0xE0 | (u >> 12);
heap[outIdx++] = 0x80 | ((u >> 6) & 63);
heap[outIdx++] = 0x80 | (u & 63);
} else {
if (outIdx + 3 >= endIdx) break;
if (u > 0x10FFFF) warnOnce('Invalid Unicode code point 0x' + u.toString(16) + ' encountered when serializing a JS string to a UTF-8 string in wasm memory! (Valid unicode code points should be in range 0-0x10FFFF).');
heap[outIdx++] = 0xF0 | (u >> 18);
heap[outIdx++] = 0x80 | ((u >> 12) & 63);
heap[outIdx++] = 0x80 | ((u >> 6) & 63);
heap[outIdx++] = 0x80 | (u & 63);
}
}
// Null-terminate the pointer to the buffer.
heap[outIdx] = 0;
return outIdx - startIdx;
}
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF8 form. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Returns the number of bytes written, EXCLUDING the null terminator.
function stringToUTF8(str, outPtr, maxBytesToWrite) {
assert(typeof maxBytesToWrite == 'number', 'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite);
}
// Returns the number of bytes the given Javascript string takes if encoded as a UTF8 byte array, EXCLUDING the null terminator byte.
function 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 u = str.charCodeAt(i); // possibly a lead surrogate
if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF);
if (u <= 0x7F) ++len;
else if (u <= 0x7FF) len += 2;
else if (u <= 0xFFFF) len += 3;
else len += 4;
}
return len;
}
// end include: runtime_strings.js
// include: runtime_strings_extra.js
// runtime_strings_extra.js: Strings related runtime functions that are available only in regular runtime.
// Given a pointer 'ptr' to a null-terminated ASCII-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.
function AsciiToString(ptr) {
var str = '';
while (1) {
var ch = HEAPU8[((ptr++)>>0)];
if (!ch) return str;
str += String.fromCharCode(ch);
}
}
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in ASCII form. The copy will require at most str.length+1 bytes of space in the HEAP.
function stringToAscii(str, outPtr) {
return writeAsciiToMemory(str, outPtr, false);
}
// Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.
var UTF16Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf-16le') : undefined;
function UTF16ToString(ptr, maxBytesToRead) {
assert(ptr % 2 == 0, 'Pointer passed to UTF16ToString must be aligned to two bytes!');
var endPtr = ptr;
// 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.
var idx = endPtr >> 1;
var maxIdx = idx + maxBytesToRead / 2;
// If maxBytesToRead is not passed explicitly, it will be undefined, and this
// will always evaluate to true. This saves on code size.
while (!(idx >= maxIdx) && HEAPU16[idx]) ++idx;
endPtr = idx << 1;
if (endPtr - ptr > 32 && UTF16Decoder) {
return UTF16Decoder.decode(HEAPU8.subarray(ptr, endPtr));
} else {
var str = '';
// If maxBytesToRead is not passed explicitly, it will be undefined, and the for-loop's condition
// will always evaluate to true. The loop is then terminated on the first null char.
for (var i = 0; !(i >= maxBytesToRead / 2); ++i) {
var codeUnit = HEAP16[(((ptr)+(i*2))>>1)];
if (codeUnit == 0) break;
// fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through.
str += String.fromCharCode(codeUnit);
}
return str;
}
}
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF16 form. The copy will require at most str.length*4+2 bytes of space in the HEAP.
// Use the function lengthBytesUTF16() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
// str: the Javascript string to copy.
// outPtr: Byte address in Emscripten HEAP where to write the string to.
// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
// terminator, i.e. if maxBytesToWrite=2, only the null terminator will be written and nothing else.
// maxBytesToWrite<2 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.
function stringToUTF16(str, outPtr, maxBytesToWrite) {
assert(outPtr % 2 == 0, 'Pointer passed to stringToUTF16 must be aligned to two bytes!');
assert(typeof maxBytesToWrite == 'number', 'stringToUTF16(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
// Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
if (maxBytesToWrite === undefined) {
maxBytesToWrite = 0x7FFFFFFF;
}
if (maxBytesToWrite < 2) return 0;
maxBytesToWrite -= 2; // Null terminator.
var startPtr = outPtr;
var numCharsToWrite = (maxBytesToWrite < str.length*2) ? (maxBytesToWrite / 2) : str.length;
for (var i = 0; i < numCharsToWrite; ++i) {
// charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP.
var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
HEAP16[((outPtr)>>1)] = codeUnit;
outPtr += 2;
}
// Null-terminate the pointer to the HEAP.
HEAP16[((outPtr)>>1)] = 0;
return outPtr - startPtr;
}
// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.
function lengthBytesUTF16(str) {
return str.length*2;
}
function UTF32ToString(ptr, maxBytesToRead) {
assert(ptr % 4 == 0, 'Pointer passed to UTF32ToString must be aligned to four bytes!');
var i = 0;
var str = '';
// If maxBytesToRead is not passed explicitly, it will be undefined, and this
// will always evaluate to true. This saves on code size.
while (!(i >= maxBytesToRead / 4)) {
var utf32 = HEAP32[(((ptr)+(i*4))>>2)];
if (utf32 == 0) break;
++i;
// Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing.
// See http://unicode.org/faq/utf_bom.html#utf16-3
if (utf32 >= 0x10000) {
var ch = utf32 - 0x10000;
str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
} else {
str += String.fromCharCode(utf32);
}
}
return str;
}
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF32 form. The copy will require at most str.length*4+4 bytes of space in the HEAP.
// Use the function lengthBytesUTF32() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
// str: the Javascript string to copy.
// outPtr: Byte address in Emscripten HEAP where to write the string to.
// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
// terminator, i.e. if maxBytesToWrite=4, only the null terminator will be written and nothing else.
// maxBytesToWrite<4 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.
function stringToUTF32(str, outPtr, maxBytesToWrite) {
assert(outPtr % 4 == 0, 'Pointer passed to stringToUTF32 must be aligned to four bytes!');
assert(typeof maxBytesToWrite == 'number', 'stringToUTF32(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');
// Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
if (maxBytesToWrite === undefined) {
maxBytesToWrite = 0x7FFFFFFF;
}
if (maxBytesToWrite < 4) return 0;
var startPtr = outPtr;
var endPtr = startPtr + maxBytesToWrite - 4;
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! We must decode the string to UTF-32 to the heap.
// See http://unicode.org/faq/utf_bom.html#utf16-3
var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) {
var trailSurrogate = str.charCodeAt(++i);
codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF);
}
HEAP32[((outPtr)>>2)] = codeUnit;
outPtr += 4;
if (outPtr + 4 > endPtr) break;
}
// Null-terminate the pointer to the HEAP.
HEAP32[((outPtr)>>2)] = 0;
return outPtr - startPtr;
}
// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.
function lengthBytesUTF32(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! We must decode the string to UTF-32 to the heap.
// See http://unicode.org/faq/utf_bom.html#utf16-3
var codeUnit = str.charCodeAt(i);
if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) ++i; // possibly a lead surrogate, so skip over the tail surrogate.
len += 4;
}
return len;
}
// Allocate heap space for a JS string, and write it there.
// It is the responsibility of the caller to free() that memory.
function allocateUTF8(str) {
var size = lengthBytesUTF8(str) + 1;
var ret = _malloc(size);
if (ret) stringToUTF8Array(str, HEAP8, ret, size);
return ret;
}
// Allocate stack space for a JS string, and write it there.
function allocateUTF8OnStack(str) {
var size = lengthBytesUTF8(str) + 1;
var ret = stackAlloc(size);
stringToUTF8Array(str, HEAP8, ret, size);
return ret;
}
// Deprecated: This function should not be called because it is unsafe and does not provide
// a maximum length limit of how many bytes it is allowed to write. Prefer calling the
// function stringToUTF8Array() instead, which takes in a maximum length that can be used
// to be secure from out of bounds writes.
/** @deprecated
@param {boolean=} dontAddNull */
function writeStringToMemory(string, buffer, dontAddNull) {
warnOnce('writeStringToMemory is deprecated and should not be called! Use stringToUTF8() instead!');
var /** @type {number} */ lastChar, /** @type {number} */ end;
if (dontAddNull) {
// stringToUTF8Array always appends null. If we don't want to do that, remember the
// character that existed at the location where the null will be placed, and restore
// that after the write (below).
end = buffer + lengthBytesUTF8(string);
lastChar = HEAP8[end];
}
stringToUTF8(string, buffer, Infinity);
if (dontAddNull) HEAP8[end] = lastChar; // Restore the value under the null character.
}
function writeArrayToMemory(array, buffer) {
assert(array.length >= 0, 'writeArrayToMemory array must have a length (should be an array or typed array)')
HEAP8.set(array, buffer);
}
/** @param {boolean=} dontAddNull */
function writeAsciiToMemory(str, buffer, dontAddNull) {
for (var i = 0; i < str.length; ++i) {
assert(str.charCodeAt(i) === (str.charCodeAt(i) & 0xff));
HEAP8[((buffer++)>>0)] = str.charCodeAt(i);
}
// Null-terminate the pointer to the HEAP.
if (!dontAddNull) HEAP8[((buffer)>>0)] = 0;
}
// end include: runtime_strings_extra.js
// Memory management
var HEAP,
/** @type {!ArrayBuffer} */
buffer,
/** @type {!Int8Array} */
HEAP8,
/** @type {!Uint8Array} */
HEAPU8,
/** @type {!Int16Array} */
HEAP16,
/** @type {!Uint16Array} */
HEAPU16,
/** @type {!Int32Array} */
HEAP32,
/** @type {!Uint32Array} */
HEAPU32,
/** @type {!Float32Array} */
HEAPF32,
/** @type {!Float64Array} */
HEAPF64;
function updateGlobalBufferAndViews(buf) {
buffer = buf;
Module['HEAP8'] = HEAP8 = new Int8Array(buf);
Module['HEAP16'] = HEAP16 = new Int16Array(buf);
Module['HEAP32'] = HEAP32 = new Int32Array(buf);
Module['HEAPU8'] = HEAPU8 = new Uint8Array(buf);
Module['HEAPU16'] = HEAPU16 = new Uint16Array(buf);
Module['HEAPU32'] = HEAPU32 = new Uint32Array(buf);
Module['HEAPF32'] = HEAPF32 = new Float32Array(buf);
Module['HEAPF64'] = HEAPF64 = new Float64Array(buf);
}
var TOTAL_STACK = 5242880;
if (Module['TOTAL_STACK']) assert(TOTAL_STACK === Module['TOTAL_STACK'], 'the stack size can no longer be determined at runtime')
var INITIAL_MEMORY = Module['INITIAL_MEMORY'] || 16777216;legacyModuleProp('INITIAL_MEMORY', 'INITIAL_MEMORY');
assert(INITIAL_MEMORY >= TOTAL_STACK, 'INITIAL_MEMORY should be larger than TOTAL_STACK, was ' + INITIAL_MEMORY + '! (TOTAL_STACK=' + TOTAL_STACK + ')');
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
assert(typeof Int32Array != 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined,
'JS engine does not provide full typed array support');
// If memory is defined in wasm, the user can't provide it.
assert(!Module['wasmMemory'], 'Use of `wasmMemory` detected. Use -s IMPORTED_MEMORY to define wasmMemory externally');
assert(INITIAL_MEMORY == 16777216, 'Detected runtime INITIAL_MEMORY setting. Use -s IMPORTED_MEMORY to define wasmMemory dynamically');
// include: runtime_init_table.js
// In regular non-RELOCATABLE mode the table is exported
// from the wasm module and this will be assigned once
// the exports are available.
var wasmTable;
// end include: runtime_init_table.js
// include: runtime_stack_check.js
// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode.
function writeStackCookie() {
var max = _emscripten_stack_get_end();
assert((max & 3) == 0);
// The stack grows downwards
HEAP32[((max + 4)>>2)] = 0x2135467;
HEAP32[((max + 8)>>2)] = 0x89BACDFE;
// Also test the global address 0 for integrity.
HEAP32[0] = 0x63736d65; /* 'emsc' */
}
function checkStackCookie() {
if (ABORT) return;
var max = _emscripten_stack_get_end();
var cookie1 = HEAPU32[((max + 4)>>2)];
var cookie2 = HEAPU32[((max + 8)>>2)];
if (cookie1 != 0x2135467 || cookie2 != 0x89BACDFE) {
abort('Stack overflow! Stack cookie has been overwritten, expected hex dwords 0x89BACDFE and 0x2135467, but received 0x' + cookie2.toString(16) + ' 0x' + cookie1.toString(16));
}
// Also test the global address 0 for integrity.
if (HEAP32[0] !== 0x63736d65 /* 'emsc' */) abort('Runtime error: The application has corrupted its heap memory area (address zero)!');
}
// end include: runtime_stack_check.js
// include: runtime_assertions.js
// Endianness check
(function() {
var h16 = new Int16Array(1);
var h8 = new Int8Array(h16.buffer);
h16[0] = 0x6373;
if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian! (Run with -s SUPPORT_BIG_ENDIAN=1 to bypass)';
})();
// end include: runtime_assertions.js
var __ATPRERUN__ = []; // functions called before the runtime is initialized
var __ATINIT__ = []; // functions called during startup
var __ATMAIN__ = []; // functions called when main() is to be run
var __ATEXIT__ = []; // functions called during shutdown
var __ATPOSTRUN__ = []; // functions called after the main() is called
var runtimeInitialized = false;
var runtimeExited = false;
var runtimeKeepaliveCounter = 0;
function keepRuntimeAlive() {
return noExitRuntime || runtimeKeepaliveCounter > 0;
}
function preRun() {
if (Module['preRun']) {
if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];
while (Module['preRun'].length) {
addOnPreRun(Module['preRun'].shift());
}
}
callRuntimeCallbacks(__ATPRERUN__);
}
function initRuntime() {
checkStackCookie();
assert(!runtimeInitialized);
runtimeInitialized = true;
if (!Module["noFSInit"] && !FS.init.initialized)
FS.init();
FS.ignorePermissions = false;
TTY.init();
callRuntimeCallbacks(__ATINIT__);
}
function preMain() {
checkStackCookie();
callRuntimeCallbacks(__ATMAIN__);
}
function exitRuntime() {
checkStackCookie();
runtimeExited = true;
}
function postRun() {
checkStackCookie();
if (Module['postRun']) {
if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']];
while (Module['postRun'].length) {
addOnPostRun(Module['postRun'].shift());
}
}
callRuntimeCallbacks(__ATPOSTRUN__);
}
function addOnPreRun(cb) {
__ATPRERUN__.unshift(cb);
}
function addOnInit(cb) {
__ATINIT__.unshift(cb);
}
function addOnPreMain(cb) {
__ATMAIN__.unshift(cb);
}
function addOnExit(cb) {
}
function addOnPostRun(cb) {
__ATPOSTRUN__.unshift(cb);
}
// include: runtime_math.js
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc
assert(Math.imul, 'This browser does not support Math.imul(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.fround, 'This browser does not support Math.fround(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.clz32, 'This browser does not support Math.clz32(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.trunc, 'This browser does not support Math.trunc(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
// end include: runtime_math.js
// A counter of dependencies for calling run(). If we need to
// do asynchronous work before running, increment this and
// decrement it. Incrementing must happen in a place like
// Module.preRun (used by emcc to add file preloading).
// Note that you can add dependencies in preRun, even though
// it happens right before run - run will be postponed until
// the dependencies are met.
var runDependencies = 0;
var runDependencyWatcher = null;
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
var runDependencyTracking = {};
function getUniqueRunDependency(id) {
var orig = id;
while (1) {
if (!runDependencyTracking[id]) return id;
id = orig + Math.random();
}
}
function addRunDependency(id) {
runDependencies++;
if (Module['monitorRunDependencies']) {
Module['monitorRunDependencies'](runDependencies);
}
if (id) {
assert(!runDependencyTracking[id]);
runDependencyTracking[id] = 1;
if (runDependencyWatcher === null && typeof setInterval != 'undefined') {
// Check for missing dependencies every few seconds
runDependencyWatcher = setInterval(function() {
if (ABORT) {
clearInterval(runDependencyWatcher);
runDependencyWatcher = null;
return;
}
var shown = false;
for (var dep in runDependencyTracking) {
if (!shown) {
shown = true;
err('still waiting on run dependencies:');
}
err('dependency: ' + dep);
}
if (shown) {
err('(end of list)');
}
}, 10000);
}
} else {
err('warning: run dependency added without ID');
}
}
function removeRunDependency(id) {
runDependencies--;
if (Module['monitorRunDependencies']) {
Module['monitorRunDependencies'](runDependencies);
}
if (id) {
assert(runDependencyTracking[id]);
delete runDependencyTracking[id];
} else {
err('warning: run dependency removed without ID');
}
if (runDependencies == 0) {
if (runDependencyWatcher !== null) {
clearInterval(runDependencyWatcher);
runDependencyWatcher = null;
}
if (dependenciesFulfilled) {
var callback = dependenciesFulfilled;
dependenciesFulfilled = null;
callback(); // can add another dependenciesFulfilled
}
}
}
Module["preloadedImages"] = {}; // maps url to image data
Module["preloadedAudios"] = {}; // maps url to audio data
/** @param {string|number=} what */
function abort(what) {
{
if (Module['onAbort']) {
Module['onAbort'](what);
}
}
what = 'Aborted(' + what + ')';
// TODO(sbc): Should we remove printing and leave it up to whoever
// catches the exception?
err(what);
ABORT = true;
EXITSTATUS = 1;
// Use a wasm runtime error, because a JS error might be seen as a foreign
// exception, which means we'd run destructors on it. We need the error to
// simply make the program stop.
// Suppress closure compiler warning here. Closure compiler's builtin extern
// defintion for WebAssembly.RuntimeError claims it takes no arguments even
// though it can.
// TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.
/** @suppress {checkTypes} */
var e = new WebAssembly.RuntimeError(what);
// Throw the error whether or not MODULARIZE is set because abort is used
// in code paths apart from instantiation where an exception is expected
// to be thrown when abort is called.
throw e;
}
// {{MEM_INITIALIZER}}
// include: memoryprofiler.js
// end include: memoryprofiler.js
// include: URIUtils.js
// Prefix of data URIs emitted by SINGLE_FILE and related options.
var dataURIPrefix = 'data:application/octet-stream;base64,';
// Indicates whether filename is a base64 data URI.
function isDataURI(filename) {
// Prefix of data URIs emitted by SINGLE_FILE and related options.
return filename.startsWith(dataURIPrefix);
}
// Indicates whether filename is delivered via file protocol (as opposed to http/https)
function isFileURI(filename) {
return filename.startsWith('file://');
}
// end include: URIUtils.js
/** @param {boolean=} fixedasm */
function createExportWrapper(name, fixedasm) {
return function() {
var displayName = name;
var asm = fixedasm;
if (!fixedasm) {
asm = Module['asm'];
}
assert(runtimeInitialized, 'native function `' + displayName + '` called before runtime initialization');
assert(!runtimeExited, 'native function `' + displayName + '` called after runtime exit (use NO_EXIT_RUNTIME to keep it alive after main() exits)');
if (!asm[name]) {
assert(asm[name], 'exported native function `' + displayName + '` not found');
}
return asm[name].apply(null, arguments);
};
}
var wasmBinaryFile;
wasmBinaryFile = '第七章作业1.wasm';
if (!isDataURI(wasmBinaryFile)) {
wasmBinaryFile = locateFile(wasmBinaryFile);
}
function getBinary(file) {
try {
if (file == wasmBinaryFile && wasmBinary) {
return new Uint8Array(wasmBinary);
}
if (readBinary) {
return readBinary(file);
} else {
throw "both async and sync fetching of the wasm failed";
}
}
catch (err) {
abort(err);
}
}
function getBinaryPromise() {
// If we don't have the binary yet, try to to load it asynchronously.
// Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.
// See https://github.com/github/fetch/pull/92#issuecomment-140665932
// Cordova or Electron apps are typically loaded from a file:// url.
// So use fetch if it is available and the url is not a file, otherwise fall back to XHR.
if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) {
if (typeof fetch == 'function'
&& !isFileURI(wasmBinaryFile)
) {
return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) {
if (!response['ok']) {
throw "failed to load wasm binary file at '" + wasmBinaryFile + "'";
}
return response['arrayBuffer']();
}).catch(function () {
return getBinary(wasmBinaryFile);
});
}
else {
if (readAsync) {
// fetch is not available or url is file => try XHR (readAsync uses XHR internally)
return new Promise(function(resolve, reject) {
readAsync(wasmBinaryFile, function(response) { resolve(new Uint8Array(/** @type{!ArrayBuffer} */(response))) }, reject)
});
}
}
}
// Otherwise, getBinary should be able to get it synchronously
return Promise.resolve().then(function() { return getBinary(wasmBinaryFile); });
}
// Create the wasm instance.
// Receives the wasm imports, returns the exports.
function createWasm() {
// prepare imports
var info = {
'env': asmLibraryArg,
'wasi_snapshot_preview1': asmLibraryArg,
};
// 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) {
var exports = instance.exports;
Module['asm'] = exports;
wasmMemory = Module['asm']['memory'];
assert(wasmMemory, "memory not found in wasm exports");
// This assertion doesn't hold when emscripten is run in --post-link
// mode.
// TODO(sbc): Read INITIAL_MEMORY out of the wasm file in post-link mode.
//assert(wasmMemory.buffer.byteLength === 16777216);
updateGlobalBufferAndViews(wasmMemory.buffer);
wasmTable = Module['asm']['__indirect_function_table'];
assert(wasmTable, "table not found in wasm exports");
addOnInit(Module['asm']['__wasm_call_ctors']);
removeRunDependency('wasm-instantiate');
}
// we can't run yet (except in a pthread, where we have a custom sync instantiator)
addRunDependency('wasm-instantiate');
// Prefer streaming instantiation if available.
// Async compilation can be confusing when an error on the page overwrites Module
// (for example, if the order of elements is wrong, and the one defining Module is
// later), so we save Module and check it later.
var trueModule = Module;
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
assert(Module === trueModule, 'the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?');
trueModule = null;
// 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 USE_PTHREADS-enabled path.
receiveInstance(result['instance']);
}
function instantiateArrayBuffer(receiver) {
return getBinaryPromise().then(function(binary) {
return WebAssembly.instantiate(binary, info);
}).then(function (instance) {
return instance;
}).then(receiver, function(reason) {
err('failed to asynchronously prepare wasm: ' + reason);
// Warn on some common problems.
if (isFileURI(wasmBinaryFile)) {
err('warning: Loading from a file URI (' + wasmBinaryFile + ') is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing');
}
abort(reason);
});
}
function instantiateAsync() {
if (!wasmBinary &&
typeof WebAssembly.instantiateStreaming == 'function' &&
!isDataURI(wasmBinaryFile) &&
// Don't use streaming for file:// delivered objects in a webview, fetch them synchronously.
!isFileURI(wasmBinaryFile) &&
typeof fetch == 'function') {
return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) {
// Suppress closure warning here since the upstream definition for
// instantiateStreaming only allows Promise<Repsponse> rather than
// an actual Response.
// TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure is fixed.
/** @suppress {checkTypes} */
var result = WebAssembly.instantiateStreaming(response, info);
return result.then(
receiveInstantiationResult,
function(reason) {
// We expect the most common failure cause to be a bad MIME type for the binary,
// in which case falling back to ArrayBuffer instantiation should work.
err('wasm streaming compile failed: ' + reason);
err('falling back to ArrayBuffer instantiation');
return instantiateArrayBuffer(receiveInstantiationResult);
});
});
} else {
return instantiateArrayBuffer(receiveInstantiationResult);
}
}
// 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.
if (Module['instantiateWasm']) {
try {
var exports = Module['instantiateWasm'](info, receiveInstance);
return exports;
} catch(e) {
err('Module.instantiateWasm callback failed with error: ' + e);
return false;
}
}
instantiateAsync();
return {}; // no exports yet; we'll fill them in later
}
// Globals used by JS i64 conversions (see makeSetValue)
var tempDouble;
var tempI64;
// === Body ===
var ASM_CONSTS = {
};
function callRuntimeCallbacks(callbacks) {
while (callbacks.length > 0) {
var callback = callbacks.shift();
if (typeof callback == 'function') {
callback(Module); // Pass the module as the first argument.
continue;
}
var func = callback.func;
if (typeof func == 'number') {
if (callback.arg === undefined) {
getWasmTableEntry(func)();
} else {
getWasmTableEntry(func)(callback.arg);
}
} else {
func(callback.arg === undefined ? null : callback.arg);
}
}
}
function withStackSave(f) {
var stack = stackSave();
var ret = f();
stackRestore(stack);
return ret;
}
function demangle(func) {
warnOnce('warning: build with -s DEMANGLE_SUPPORT=1 to link in libcxxabi demangling');
return func;
}
function demangleAll(text) {
var regex =
/\b_Z[\w\d_]+/g;
return text.replace(regex,
function(x) {
var y = demangle(x);
return x === y ? x : (y + ' [' + x + ']');
});
}
var wasmTableMirror = [];
function getWasmTableEntry(funcPtr) {
var func = wasmTableMirror[funcPtr];
if (!func) {
if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1;
wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr);
}
assert(wasmTable.get(funcPtr) == func, "JavaScript-side Wasm function table mirror is out of date!");
return func;
}
function handleException(e) {
// Certain exception types we do not treat as errors since they are used for
// internal control flow.
// 1. ExitStatus, which is thrown by exit()
// 2. "unwind", which is thrown by emscripten_unwind_to_js_event_loop() and others
// that wish to return to JS event loop.
if (e instanceof ExitStatus || e == 'unwind') {
return EXITSTATUS;
}
quit_(1, e);
}
function jsStackTrace() {
var error = new Error();
if (!error.stack) {
// IE10+ special cases: It does have callstack info, but it is only populated if an Error object is thrown,
// so try that as a special-case.
try {
throw new Error();
} catch(e) {
error = e;
}
if (!error.stack) {
return '(no stack trace available)';
}
}
return error.stack.toString();
}
function setWasmTableEntry(idx, func) {
wasmTable.set(idx, func);
wasmTableMirror[idx] = func;
}
function stackTrace() {
var js = jsStackTrace();
if (Module['extraStackTrace']) js += '\n' + Module['extraStackTrace']();
return demangleAll(js);
}
function ___cxa_allocate_exception(size) {
// Thrown object is prepended by exception metadata block
return _malloc(size + 16) + 16;
}
/** @constructor */
function ExceptionInfo(excPtr) {
this.excPtr = excPtr;
this.ptr = excPtr - 16;
this.set_type = function(type) {
HEAP32[(((this.ptr)+(4))>>2)] = type;
};
this.get_type = function() {
return HEAP32[(((this.ptr)+(4))>>2)];
};
this.set_destructor = function(destructor) {
HEAP32[(((this.ptr)+(8))>>2)] = destructor;
};
this.get_destructor = function() {
return HEAP32[(((this.ptr)+(8))>>2)];
};
this.set_refcount = function(refcount) {
HEAP32[((this.ptr)>>2)] = refcount;
};
this.set_caught = function (caught) {
caught = caught ? 1 : 0;
HEAP8[(((this.ptr)+(12))>>0)] = caught;
};
this.get_caught = function () {
return HEAP8[(((this.ptr)+(12))>>0)] != 0;
};
this.set_rethrown = function (rethrown) {
rethrown = rethrown ? 1 : 0;
HEAP8[(((this.ptr)+(13))>>0)] = rethrown;
};
this.get_rethrown = function () {
return HEAP8[(((this.ptr)+(13))>>0)] != 0;
};
// Initialize native structure fields. Should be called once after allocated.
this.init = function(type, destructor) {
this.set_type(type);
this.set_destructor(destructor);
this.set_refcount(0);
this.set_caught(false);
this.set_rethrown(false);
}
this.add_ref = function() {
var value = HEAP32[((this.ptr)>>2)];
HEAP32[((this.ptr)>>2)] = value + 1;
};
// Returns true if last reference released.
this.release_ref = function() {
var prev = HEAP32[((this.ptr)>>2)];
HEAP32[((this.ptr)>>2)] = prev - 1;
assert(prev > 0);
return prev === 1;
};
}
var exceptionLast = 0;
var uncaughtExceptionCount = 0;
function ___cxa_throw(ptr, type, destructor) {
var info = new ExceptionInfo(ptr);
// Initialize ExceptionInfo content after it was allocated in __cxa_allocate_exception.
info.init(type, destructor);
exceptionLast = ptr;
uncaughtExceptionCount++;
throw ptr + " - Exception catching is disabled, this exception cannot be caught. Compile with -s NO_DISABLE_EXCEPTION_CATCHING or -s EXCEPTION_CATCHING_ALLOWED=[..] to catch.";
}
function setErrNo(value) {
HEAP32[((___errno_location())>>2)] = value;
return value;
}
var PATH = {splitPath:function(filename) {
var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
return splitPathRe.exec(filename).slice(1);
},normalizeArray:function(parts, allowAboveRoot) {
// if the path tries to go above the root, `up` ends up > 0
var up = 0;
for (var i = parts.length - 1; i >= 0; i--) {
var last = parts[i];
if (last === '.') {
parts.splice(i, 1);
} else if (last === '..') {
parts.splice(i, 1);
up++;
} else if (up) {
parts.splice(i, 1);
up--;
}
}
// if the path is allowed to go above the root, restore leading ..s
if (allowAboveRoot) {
for (; up; up--) {
parts.unshift('..');
}
}
return parts;
},normalize:function(path) {
var isAbsolute = path.charAt(0) === '/',
trailingSlash = path.substr(-1) === '/';
// Normalize the path
path = PATH.normalizeArray(path.split('/').filter(function(p) {
return !!p;
}), !isAbsolute).join('/');
if (!path && !isAbsolute) {
path = '.';
}
if (path && trailingSlash) {
path += '/';
}
return (isAbsolute ? '/' : '') + path;
},dirname:function(path) {
var result = PATH.splitPath(path),
root = result[0],
dir = result[1];
if (!root && !dir) {
// No dirname whatsoever
return '.';
}
if (dir) {
// It has a dirname, strip trailing slash
dir = dir.substr(0, dir.length - 1);
}
return root + dir;
},basename:function(path) {
// EMSCRIPTEN return '/'' for '/', not an empty string
if (path === '/') return '/';
path = PATH.normalize(path);
path = path.replace(/\/$/, "");
var lastSlash = path.lastIndexOf('/');
if (lastSlash === -1) return path;
return path.substr(lastSlash+1);
},extname:function(path) {
return PATH.splitPath(path)[3];
},join:function() {
var paths = Array.prototype.slice.call(arguments, 0);
return PATH.normalize(paths.join('/'));
},join2:function(l, r) {
return PATH.normalize(l + '/' + r);
}};
function getRandomDevice() {
if (typeof crypto == 'object' && typeof crypto['getRandomValues'] == 'function') {
// for modern web browsers
var randomBuffer = new Uint8Array(1);
return function() { crypto.getRandomValues(randomBuffer); return randomBuffer[0]; };
} else
if (ENVIRONMENT_IS_NODE) {
// for nodejs with or without crypto support included
try {
var crypto_module = require('crypto');
// nodejs has crypto support
return function() { return crypto_module['randomBytes'](1)[0]; };
} catch (e) {
// nodejs doesn't have crypto support
}
}
// we couldn't find a proper implementation, as Math.random() is not suitable for /dev/random, see emscripten-core/emscripten/pull/7096
return function() { abort("no cryptographic support found for randomDevice. consider polyfilling it if you want to use something insecure like Math.random(), e.g. put this in a --pre-js: var crypto = { getRandomValues: function(array) { for (var i = 0; i < array.length; i++) array[i] = (Math.random()*256)|0 } };"); };
}
var PATH_FS = {resolve:function() {
var resolvedPath = '',
resolvedAbsolute = false;
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
var path = (i >= 0) ? arguments[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.charAt(0) === '/';
}
// 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(function(p) {
return !!p;
}), !resolvedAbsolute).join('/');
return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
},relative:function(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 TTY = {ttys:[],init:function () {
// 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:function() {
// 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:function(dev, ops) {
TTY.ttys[dev] = { input: [], output: [], ops: ops };
FS.registerDevice(dev, TTY.stream_ops);
},stream_ops:{open:function(stream) {
var tty = TTY.ttys[stream.node.rdev];
if (!tty) {
throw new FS.ErrnoError(43);
}
stream.tty = tty;
stream.seekable = false;
},close:function(stream) {
// flush any pending line data
stream.tty.ops.flush(stream.tty);
},flush:function(stream) {
stream.tty.ops.flush(stream.tty);
},read:function(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:function(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:function(tty) {
if (!tty.input.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;
try {
bytesRead = fs.readSync(process.stdin.fd, buf, 0, BUFSIZE, -1);
} 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 {
result = null;
}
} 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 (typeof readline == 'function') {
// Command line.
result = readline();
if (result !== null) {
result += '\n';
}
}
if (!result) {
return null;
}
tty.input = intArrayFromString(result, true);
}
return tty.input.shift();
},put_char:function(tty, val) {
if (val === null || val === 10) {
out(UTF8ArrayToString(tty.output, 0));
tty.output = [];
} else {
if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle.
}
},flush:function(tty) {
if (tty.output && tty.output.length > 0) {
out(UTF8ArrayToString(tty.output, 0));
tty.output = [];
}
}},default_tty1_ops:{put_char:function(tty, val) {
if (val === null || val === 10) {
err(UTF8ArrayToString(tty.output, 0));
tty.output = [];
} else {
if (val != 0) tty.output.push(val);
}
},flush:function(tty) {
if (tty.output && tty.output.length > 0) {
err(UTF8ArrayToString(tty.output, 0));
tty.output = [];
}
}}};
function zeroMemory(address, size) {
HEAPU8.fill(0, address, address + size);
}
function alignMemory(size, alignment) {
assert(alignment, "alignment argument is required");
return Math.ceil(size / alignment) * alignment;
}
function mmapAlloc(size) {
abort('internal error: mmapAlloc called but `emscripten_builtin_memalign` native symbol not exported');
}
var MEMFS = {ops_table:null,mount:function(mount) {
return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
},createNode:function(parent, name, mode, dev) {
if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
// no supported
throw new FS.ErrnoError(63);
}
if (!MEMFS.ops_table) {
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:function(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:function(node, newCapacity) {
var prevCapacity = node.contents ? node.contents.length : 0;
if (prevCapacity >= newCapacity) return; // No need to expand, the storage was already large enough.
// Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity.
// For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to
// avoid overshooting the allocation cap by a very large margin.
var CAPACITY_DOUBLING_MAX = 1024 * 1024;
newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2.0 : 1.125)) >>> 0);
if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding.
var oldContents = node.contents;
node.contents = new Uint8Array(newCapacity); // Allocate new storage.
if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0); // Copy old data over to the new storage.
},resizeFileStorage:function(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:function(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:function(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:function(parent, name) {
throw FS.genericErrors[44];
},mknod:function(parent, name, mode, dev) {
return MEMFS.createNode(parent, name, mode, dev);
},rename:function(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;
old_node.parent = new_dir;
},unlink:function(parent, name) {
delete parent.contents[name];
parent.timestamp = Date.now();
},rmdir:function(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:function(node) {
var entries = ['.', '..'];
for (var key in node.contents) {
if (!node.contents.hasOwnProperty(key)) {
continue;
}
entries.push(key);
}
return entries;
},symlink:function(parent, newname, oldpath) {
var node = MEMFS.createNode(parent, newname, 511 /* 0777 */ | 40960, 0);
node.link = oldpath;
return node;
},readlink:function(node) {
if (!FS.isLink(node.mode)) {
throw new FS.ErrnoError(28);
}
return node.link;
}},stream_ops:{read:function(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);
assert(size >= 0);
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:function(stream, buffer, offset, length, position, canOwn) {
// The data buffer should be a typed array view
assert(!(buffer instanceof ArrayBuffer));
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) {
assert(position === 0, 'canOwn must imply no weird position inside the file');
node.contents = buffer.subarray(offset, offset + length);
node.usedBytes = length;
return length;
} else if (node.usedBytes === 0 && position === 0) { // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
node.contents = buffer.slice(offset, offset + length);
node.usedBytes = length;
return length;
} else if (position + length <= node.usedBytes) { // Writing to an already allocated and used subrange of the file?
node.contents.set(buffer.subarray(offset, offset + length), position);
return length;
}
}
// Appending to an existing file and we need to reallocate, or source data did not come as a typed array.
MEMFS.expandFileStorage(node, position+length);
if (node.contents.subarray && buffer.subarray) {
// Use typed array write which is available.
node.contents.set(buffer.subarray(offset, offset + length), position);
} else {
for (var i = 0; i < length; i++) {
node.contents[position + i] = buffer[offset + i]; // Or fall back to manual write if not.
}
}
node.usedBytes = Math.max(node.usedBytes, position + length);
return length;
},llseek:function(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:function(stream, offset, length) {
MEMFS.expandFileStorage(stream.node, offset + length);
stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length);
},mmap:function(stream, address, length, position, prot, flags) {
if (address !== 0) {
// We don't currently support location hints for the address of the mapping
throw new FS.ErrnoError(28);
}
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.buffer === 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 {
// 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);
}
}
allocated = true;
ptr = mmapAlloc(length);
if (!ptr) {
throw new FS.ErrnoError(48);
}
HEAP8.set(contents, ptr);
}
return { ptr: ptr, allocated: allocated };
},msync:function(stream, buffer, offset, length, mmapFlags) {
if (!FS.isFile(stream.node.mode)) {
throw new FS.ErrnoError(43);
}
if (mmapFlags & 2) {
// MAP_PRIVATE calls need not to be synced back to underlying fs
return 0;
}
var bytesWritten = 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 */
function asyncLoad(url, onload, onerror, noRunDep) {
var dep = !noRunDep ? getUniqueRunDependency('al ' + url) : '';
readAsync(url, function(arrayBuffer) {
assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).');
onload(new Uint8Array(arrayBuffer));
if (dep) removeRunDependency(dep);
}, function(event) {
if (onerror) {
onerror();
} else {
throw 'Loading data file "' + url + '" failed.';
}
});
if (dep) addRunDependency(dep);
}
var ERRNO_MESSAGES = {0:"Success",1:"Arg list too long",2:"Permission denied",3:"Address already in use",4:"Address not available",5:"Address family not supported by protocol family",6:"No more processes",7:"Socket already connected",8:"Bad file number",9:"Trying to read unreadable message",10:"Mount device busy",11:"Operation canceled",12:"No children",13:"Connection aborted",14:"Connection refused",15:"Connection reset by peer",16:"File locking deadlock error",17:"Destination address required",18:"Math arg out of domain of func",19:"Quota exceeded",20:"File exists",21:"Bad address",22:"File too large",23:"Host is unreachable",24:"Identifier removed",25:"Illegal byte sequence",26:"Connection already in progress",27:"Interrupted system call",28:"Invalid argument",29:"I/O error",30:"Socket is already connected",31:"Is a directory",32:"Too many symbolic links",33:"Too many open files",34:"Too many links",35:"Message too long",36:"Multihop attempted",37:"File or path name too long",38:"Network interface is not configured",39:"Connection reset by network",40:"Network is unreachable",41:"Too many open files in system",42:"No buffer space available",43:"No such device",44:"No such file or directory",45:"Exec format error",46:"No record locks available",47:"The link has been severed",48:"Not enough core",49:"No message of desired type",50:"Protocol not available",51:"No space left on device",52:"Function not implemented",53:"Socket is not connected",54:"Not a directory",55:"Directory not empty",56:"State not recoverable",57:"Socket operation on non-socket",59:"Not a typewriter",60:"No such device or address",61:"Value too large for defined data type",62:"Previous owner died",63:"Not super-user",64:"Broken pipe",65:"Protocol error",66:"Unknown protocol",67:"Protocol wrong type for socket",68:"Math result not representable",69:"Read only file system",70:"Illegal seek",71:"No such process",72:"Stale file handle",73:"Connection timed out",74:"Text file busy",75:"Cross-device link",100:"Device not a stream",101:"Bad font file fmt",102:"Invalid slot",103:"Invalid request code",104:"No anode",105:"Block device required",106:"Channel number out of range",107:"Level 3 halted",108:"Level 3 reset",109:"Link number out of range",110:"Protocol driver not attached",111:"No CSI structure available",112:"Level 2 halted",113:"Invalid exchange",114:"Invalid request descriptor",115:"Exchange full",116:"No data (for no delay io)",117:"Timer expired",118:"Out of streams resources",119:"Machine is not on the network",120:"Package not installed",121:"The object is remote",122:"Advertise error",123:"Srmount error",124:"Communication error on send",125:"Cross mount point (not really error)",126:"Given log. name not unique",127:"f.d. invalid for this operation",128:"Remote address changed",129:"Can access a needed shared lib",130:"Accessing a corrupted shared lib",131:".lib section in a.out corrupted",132:"Attempting to link in too many libs",133:"Attempting to exec a shared library",135:"Streams pipe error",136:"Too many users",137:"Socket type not supported",138:"Not supported",139:"Protocol family not supported",140:"Can't send after socket shutdown",141:"Too many references",142:"Host is down",148:"No medium (in tape drive)",156:"Level 2 not synchronized"};
var ERRNO_CODES = {};
var FS = {root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,lookupPath:(path, opts = {}) => {
path = PATH_FS.resolve(FS.cwd(), path);
if (!path) return { path: '', node: null };
var defaults = {
follow_mount: true,
recurse_count: 0
};
for (var key in defaults) {
if (opts[key] === undefined) {
opts[key] = defaults[key];
}
}
if (opts.recurse_count > 8) { // max recursive lookup of 8
throw new FS.ErrnoError(32);
}
// split the path
var parts = PATH.normalizeArray(path.split('/').filter((p) => !!p), false);
// 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 });
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, parent);
}
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) => {
assert(typeof parent == 'object')
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;
},flagModes:{"r":0,"r+":2,"w":577,"w+":578,"a":1089,"a+":1090},modeStringToFlags:(str) => {
var flags = FS.flagModes[str];
if (typeof flags == 'undefined') {
throw new Error('Unknown file open mode: ' + str);
}
return flags;
},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) => {
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:(fd_start = 0, fd_end = FS.MAX_OPEN_FDS) => {
for (var fd = fd_start; fd <= fd_end; fd++) {
if (!FS.streams[fd]) {
return fd;
}
}
throw new FS.ErrnoError(33);
},getStream:(fd) => FS.streams[fd],createStream:(stream, fd_start, fd_end) => {
if (!FS.FSStream) {
FS.FSStream = /** @constructor */ function(){};
FS.FSStream.prototype = {
object: {
get: function() { return this.node; },
set: function(val) { this.node = val; }
},
isRead: {
get: function() { return (this.flags & 2097155) !== 1; }
},
isWrite: {
get: function() { return (this.flags & 2097155) !== 0; }
},
isAppend: {
get: function() { return (this.flags & 1024); }
}
};
}
// clone it, so we can return an instance of FSStream
stream = Object.assign(new FS.FSStream(), stream);
var fd = FS.nextfd(fd_start, fd_end);
stream.fd = fd;
FS.streams[fd] = stream;
return stream;
},closeStream:(fd) => {
FS.streams[fd] = null;
},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
if (stream.stream_ops.open) {
stream.stream_ops.open(stream);
}
},llseek:() => {
throw new FS.ErrnoError(70);
}},major:(dev) => ((dev) >> 8),minor:(dev) => ((dev) & 0xff),makedev:(ma, mi) => ((ma) << 8 | (mi)),registerDevice:(dev, ops) => {
FS.devices[dev] = { stream_ops: ops };
},getDevice:(dev) => FS.devices[dev],getMounts:(mount) => {
var mounts = [];
var check = [mount];
while (check.length) {
var m = check.pop();
mounts.push(m);
check.push.apply(check, 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) {
assert(FS.syncFSRequests > 0);
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) => {
if (typeof type == 'string') {
// The filesystem was not included, and instead we have an error
// message stored in the variable.
throw type;
}
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: type,
opts: opts,
mountpoint: 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);
assert(idx !== -1);
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);
},create:(path, mode) => {
mode = mode !== undefined ? mode : 438 /* 0666 */;
mode &= 4095;
mode |= 32768;
return FS.mknod(path, mode, 0);
},mkdir:(path, mode) => {
mode = mode !== undefined ? mode : 511 /* 0777 */;
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 /* 0666 */;
}
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 existant directories percolate up
lookup = FS.lookupPath(old_path, { parent: true });
old_dir = lookup.node;
lookup = FS.lookupPath(new_path, { parent: true });
new_dir = lookup.node;
if (!old_dir || !new_dir) throw new FS.ErrnoError(44);
// need to be part of the same mount
if (old_dir.mount !== new_dir.mount) {
throw new FS.ErrnoError(75);
}
// source must exist
var old_node = FS.lookupNode(old_dir, old_name);
// old path should not be an ancestor of the new path
var relative = PATH_FS.relative(old_path, new_dirname);
if (relative.charAt(0) !== '.') {
throw new FS.ErrnoError(28);
}
// new path should not be an ancestor of the old path
relative = PATH_FS.relative(new_path, old_dirname);
if (relative.charAt(0) !== '.') {
throw new FS.ErrnoError(55);
}
// see if the new path already exists
var new_node;
try {
new_node = FS.lookupNode(new_dir, new_name);
} catch (e) {
// not fatal
}
// early out if nothing needs to change
if (old_node === new_node) {
return;
}
// we'll need to delete the old entry
var isdir = FS.isDir(old_node.mode);
var errCode = FS.mayDelete(old_dir, old_name, isdir);
if (errCode) {
throw new FS.ErrnoError(errCode);
}
// need delete permissions if we'll be overwriting.
// need create permissions if new doesn't already exist.
errCode = new_node ?
FS.mayDelete(new_dir, new_name, isdir) :
FS.mayCreate(new_dir, new_name);
if (errCode) {
throw new FS.ErrnoError(errCode);
}
if (!old_dir.node_ops.rename) {
throw new FS.ErrnoError(63);
}
if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
throw new FS.ErrnoError(10);
}
// if we are going to change the parent, check write permissions
if (new_dir !== old_dir) {
errCode = FS.nodePermissions(old_dir, 'w');
if (errCode) {
throw new FS.ErrnoError(errCode);
}
}
// remove the node from the lookup hash
FS.hashRemoveNode(old_node);
// do the underlying fs rename
try {
old_dir.node_ops.rename(old_node, new_dir, new_name);
} 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 PATH_FS.resolve(FS.getPath(link.parent), 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.getStream(fd);
if (!stream) {
throw new FS.ErrnoError(8);
}
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.getStream(fd);
if (!stream) {
throw new FS.ErrnoError(8);
}
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.getStream(fd);
if (!stream) {
throw new FS.ErrnoError(8);
}
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, fd_start, fd_end) => {
if (path === "") {
throw new FS.ErrnoError(44);
}
flags = typeof flags == 'string' ? FS.modeStringToFlags(flags) : flags;
mode = typeof mode == 'undefined' ? 438 /* 0666 */ : mode;
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) {
// ignore
}
}
// 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)) {
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: node,
path: FS.getPath(node), // we want the absolute path to the node
flags: flags,
seekable: true,
position: 0,
stream_ops: node.stream_ops,
// used by the file family libc calls (fopen, fwrite, ferror, etc.)
ungotten: [],
error: false
}, fd_start, fd_end);
// call the new stream's open function
if (stream.stream_ops.open) {
stream.stream_ops.open(stream);
}
if (Module['logReadFiles'] && !(flags & 1)) {
if (!FS.readFiles) FS.readFiles = {};
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, address, 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);
}
return stream.stream_ops.mmap(stream, address, length, position, prot, flags);
},msync:(stream, buffer, offset, length, mmapFlags) => {
if (!stream || !stream.stream_ops.msync) {
return 0;
}
return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
},munmap:(stream) => 0,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, 0);
} 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,
});
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
var random_device = getRandomDevice();
FS.createDevice('/dev', 'random', random_device);
FS.createDevice('/dev', 'urandom', random_device);
// 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', 16384 | 511 /* 0777 */, 73);
node.node_ops = {
lookup: (parent, name) => {
var fd = +name;
var stream = FS.getStream(fd);
if (!stream) throw new FS.ErrnoError(8);
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:() => {
// 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 (Module['stdin']) {
FS.createDevice('/dev', 'stdin', Module['stdin']);
} else {
FS.symlink('/dev/tty', '/dev/stdin');
}
if (Module['stdout']) {
FS.createDevice('/dev', 'stdout', null, Module['stdout']);
} else {
FS.symlink('/dev/tty', '/dev/stdout');
}
if (Module['stderr']) {
FS.createDevice('/dev', 'stderr', null, Module['stderr']);
} 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);
assert(stdin.fd === 0, 'invalid handle for stdin (' + stdin.fd + ')');
assert(stdout.fd === 1, 'invalid handle for stdout (' + stdout.fd + ')');
assert(stderr.fd === 2, 'invalid handle for stderr (' + stderr.fd + ')');
},ensureErrnoError:() => {
if (FS.ErrnoError) return;
FS.ErrnoError = /** @this{Object} */ function ErrnoError(errno, node) {
this.node = node;
this.setErrno = /** @this{Object} */ function(errno) {
this.errno = errno;
for (var key in ERRNO_CODES) {
if (ERRNO_CODES[key] === errno) {
this.code = key;
break;
}
}
};
this.setErrno(errno);
this.message = ERRNO_MESSAGES[errno];
// Try to get a maximally helpful stack trace. On Node.js, getting Error.stack
// now ensures it shows what we want.
if (this.stack) {
// Define the stack property for Node.js 4, which otherwise errors on the next line.
Object.defineProperty(this, "stack", { value: (new Error).stack, writable: true });
this.stack = demangleAll(this.stack);
}
};
FS.ErrnoError.prototype = new Error();
FS.ErrnoError.prototype.constructor = FS.ErrnoError;
// Some errors may happen quite a bit, to avoid overhead we reuse them (and suffer a lack of stack info)
[44].forEach((code) => {
FS.genericErrors[code] = new FS.ErrnoError(code);
FS.genericErrors[code].stack = '<generic error, no stack>';
});
},staticInit:() => {
FS.ensureErrnoError();
FS.nameTable = new Array(4096);
FS.mount(MEMFS, {}, '/');
FS.createDefaultDirectories();
FS.createDefaultDevices();
FS.createSpecialDirectories();
FS.filesystems = {
'MEMFS': MEMFS,
};
},init:(input, output, error) => {
assert(!FS.init.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)');
FS.init.initialized = true;
FS.ensureErrnoError();
// Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
Module['stdin'] = input || Module['stdin'];
Module['stdout'] = output || Module['stdout'];
Module['stderr'] = error || Module['stderr'];
FS.createStandardStreams();
},quit:() => {
FS.init.initialized = false;
// Call musl-internal function to close all stdio streams, so nothing is
// left in internal buffers.
___stdio_exit();
// 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);
}
},getMode:(canRead, canWrite) => {
var mode = 0;
if (canRead) mode |= 292 | 73;
if (canWrite) mode |= 146;
return mode;
},findObject:(path, dontResolveLastLink) => {
var ret = FS.analyzePath(path, dontResolveLastLink);
if (ret.exists) {
return ret.object;
} else {
return null;
}
},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);
}
return node;
},createDevice:(parent, name, input, output) => {
var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name);
var mode = FS.getMode(!!input, !!output);
if (!FS.createDevice.major) 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 && output.buffer && 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 if (read_) {
// Command-line.
try {
// WARNING: Can't read binary files in V8's d8 or tracemonkey's js, as
// read() will try to parse UTF8.
obj.contents = intArrayFromString(read_(obj.url), true);
obj.usedBytes = obj.contents.length;
} catch (e) {
throw new FS.ErrnoError(29);
}
} else {
throw new Error('Cannot load without read() or XMLHttpRequest.');
}
},createLazyFile:(parent, name, url, canRead, canWrite) => {
// Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse.
/** @constructor */
function LazyUint8Array() {
this.lengthKnown = false;
this.chunks = []; // Loaded chunks. Index is the chunk number
}
LazyUint8Array.prototype.get = /** @this{Object} */ function LazyUint8Array_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];
};
LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setDataGetter(getter) {
this.getter = getter;
};
LazyUint8Array.prototype.cacheLength = function LazyUint8Array_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 || []));
} else {
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;
};
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();
Object.defineProperties(lazyArray, {
length: {
get: /** @this{Object} */ function() {
if (!this.lengthKnown) {
this.cacheLength();
}
return this._length;
}
},
chunkSize: {
get: /** @this{Object} */ function() {
if (!this.lengthKnown) {
this.cacheLength();
}
return this._chunkSize;
}
}
});
var properties = { isDevice: false, contents: lazyArray };
} else {
var properties = { isDevice: false, url: url };
}
var node = FS.createFile(parent, name, properties, canRead, canWrite);
// This is a total hack, but I want to get this lazy file code out of the
// core of MEMFS. If we want to keep this lazy file concept I feel it should
// be its own thin LAZYFS proxying calls to MEMFS.
if (properties.contents) {
node.contents = properties.contents;
} else if (properties.url) {
node.contents = null;
node.url = properties.url;
}
// Add a function that defers querying the file size until it is asked the first time.
Object.defineProperties(node, {
usedBytes: {
get: /** @this {FSNode} */ 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] = function forceLoadLazyFile() {
FS.forceLoadFile(node);
return fn.apply(null, arguments);
};
});
// use a custom read function
stream_ops.read = (stream, buffer, offset, length, position) => {
FS.forceLoadFile(node);
var contents = stream.node.contents;
if (position >= contents.length)
return 0;
var size = Math.min(contents.length - position, length);
assert(size >= 0);
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;
};
node.stream_ops = stream_ops;
return node;
},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) {
if (preFinish) preFinish();
if (!dontCreateFile) {
FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
}
if (onload) onload();
removeRunDependency(dep);
}
if (Browser.handledByPreloadPlugin(byteArray, fullname, finish, () => {
if (onerror) onerror();
removeRunDependency(dep);
})) {
return;
}
finish(byteArray);
}
addRunDependency(dep);
if (typeof url == 'string') {
asyncLoad(url, (byteArray) => processData(byteArray), onerror);
} else {
processData(url);
}
},indexedDB:() => {
return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
},DB_NAME:() => {
return 'EM_FS_' + window.location.pathname;
},DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:(paths, onload, onerror) => {
onload = onload || (() => {});
onerror = onerror || (() => {});
var indexedDB = FS.indexedDB();
try {
var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
} catch (e) {
return onerror(e);
}
openRequest.onupgradeneeded = () => {
out('creating db');
var db = openRequest.result;
db.createObjectStore(FS.DB_STORE_NAME);
};
openRequest.onsuccess = () => {
var db = openRequest.result;
var transaction = db.transaction([FS.DB_STORE_NAME], 'readwrite');
var files = transaction.objectStore(FS.DB_STORE_NAME);
var ok = 0, fail = 0, total = paths.length;
function finish() {
if (fail == 0) onload(); else onerror();
}
paths.forEach((path) => {
var putRequest = files.put(FS.analyzePath(path).object.contents, path);
putRequest.onsuccess = () => { ok++; if (ok + fail == total) finish() };
putRequest.onerror = () => { fail++; if (ok + fail == total) finish() };
});
transaction.onerror = onerror;
};
openRequest.onerror = onerror;
},loadFilesFromDB:(paths, onload, onerror) => {
onload = onload || (() => {});
onerror = onerror || (() => {});
var indexedDB = FS.indexedDB();
try {
var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
} catch (e) {
return onerror(e);
}
openRequest.onupgradeneeded = onerror; // no database to load from
openRequest.onsuccess = () => {
var db = openRequest.result;
try {
var transaction = db.transaction([FS.DB_STORE_NAME], 'readonly');
} catch(e) {
onerror(e);
return;
}
var files = transaction.objectStore(FS.DB_STORE_NAME);
var ok = 0, fail = 0, total = paths.length;
function finish() {
if (fail == 0) onload(); else onerror();
}
paths.forEach((path) => {
var getRequest = files.get(path);
getRequest.onsuccess = () => {
if (FS.analyzePath(path).exists) {
FS.unlink(path);
}
FS.createDataFile(PATH.dirname(path), PATH.basename(path), getRequest.result, true, true, true);
ok++;
if (ok + fail == total) finish();
};
getRequest.onerror = () => { fail++; if (ok + fail == total) finish() };
});
transaction.onerror = onerror;
};
openRequest.onerror = onerror;
},absolutePath:() => {
abort('FS.absolutePath has been removed; use PATH_FS.resolve instead');
},createFolder:() => {
abort('FS.createFolder has been removed; use FS.mkdir instead');
},createLink:() => {
abort('FS.createLink has been removed; use FS.symlink instead');
},joinPath:() => {
abort('FS.joinPath has been removed; use PATH.join instead');
},mmapAlloc:() => {
abort('FS.mmapAlloc has been replaced by the top level function mmapAlloc');
},standardizePath:() => {
abort('FS.standardizePath has been removed; use PATH.normalize instead');
}};
var SYSCALLS = {DEFAULT_POLLMASK:5,calculateAt:function(dirfd, path, allowEmpty) {
if (path[0] === '/') {
return path;
}
// relative path
var dir;
if (dirfd === -100) {
dir = FS.cwd();
} else {
var dirstream = FS.getStream(dirfd);
if (!dirstream) throw new FS.ErrnoError(8);
dir = dirstream.path;
}
if (path.length == 0) {
if (!allowEmpty) {
throw new FS.ErrnoError(44);;
}
return dir;
}
return PATH.join2(dir, path);
},doStat:function(func, path, buf) {
try {
var stat = func(path);
} catch (e) {
if (e && e.node && PATH.normalize(path) !== PATH.normalize(FS.getPath(e.node))) {
// an error occurred while trying to look up the path; we should just report ENOTDIR
return -54;
}
throw e;
}
HEAP32[((buf)>>2)] = stat.dev;
HEAP32[(((buf)+(4))>>2)] = 0;
HEAP32[(((buf)+(8))>>2)] = stat.ino;
HEAP32[(((buf)+(12))>>2)] = stat.mode;
HEAP32[(((buf)+(16))>>2)] = stat.nlink;
HEAP32[(((buf)+(20))>>2)] = stat.uid;
HEAP32[(((buf)+(24))>>2)] = stat.gid;
HEAP32[(((buf)+(28))>>2)] = stat.rdev;
HEAP32[(((buf)+(32))>>2)] = 0;
(tempI64 = [stat.size>>>0,(tempDouble=stat.size,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((buf)+(40))>>2)] = tempI64[0],HEAP32[(((buf)+(44))>>2)] = tempI64[1]);
HEAP32[(((buf)+(48))>>2)] = 4096;
HEAP32[(((buf)+(52))>>2)] = stat.blocks;
HEAP32[(((buf)+(56))>>2)] = (stat.atime.getTime() / 1000)|0;
HEAP32[(((buf)+(60))>>2)] = 0;
HEAP32[(((buf)+(64))>>2)] = (stat.mtime.getTime() / 1000)|0;
HEAP32[(((buf)+(68))>>2)] = 0;
HEAP32[(((buf)+(72))>>2)] = (stat.ctime.getTime() / 1000)|0;
HEAP32[(((buf)+(76))>>2)] = 0;
(tempI64 = [stat.ino>>>0,(tempDouble=stat.ino,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((buf)+(80))>>2)] = tempI64[0],HEAP32[(((buf)+(84))>>2)] = tempI64[1]);
return 0;
},doMsync:function(addr, stream, len, flags, offset) {
var buffer = HEAPU8.slice(addr, addr + len);
FS.msync(stream, buffer, offset, len, flags);
},doMkdir:function(path, mode) {
// remove a trailing slash, if one - /a/b/ has basename of '', but
// we want to create b in the context of this function
path = PATH.normalize(path);
if (path[path.length-1] === '/') path = path.substr(0, path.length-1);
FS.mkdir(path, mode, 0);
return 0;
},doMknod:function(path, mode, dev) {
// we don't want this in the JS API as it uses mknod to create all nodes.
switch (mode & 61440) {
case 32768:
case 8192:
case 24576:
case 4096:
case 49152:
break;
default: return -28;
}
FS.mknod(path, mode, dev);
return 0;
},doReadlink:function(path, buf, bufsize) {
if (bufsize <= 0) return -28;
var ret = FS.readlink(path);
var len = Math.min(bufsize, lengthBytesUTF8(ret));
var endChar = HEAP8[buf+len];
stringToUTF8(ret, buf, bufsize+1);
// readlink is one of the rare functions that write out a C string, but does never append a null to the output buffer(!)
// stringToUTF8() always appends a null byte, so restore the character under the null byte after the write.
HEAP8[buf+len] = endChar;
return len;
},doAccess:function(path, amode) {
if (amode & ~7) {
// need a valid mode
return -28;
}
var lookup = FS.lookupPath(path, { follow: true });
var node = lookup.node;
if (!node) {
return -44;
}
var perms = '';
if (amode & 4) perms += 'r';
if (amode & 2) perms += 'w';
if (amode & 1) perms += 'x';
if (perms /* otherwise, they've just passed F_OK */ && FS.nodePermissions(node, perms)) {
return -2;
}
return 0;
},doDup:function(path, flags, suggestFD) {
var suggest = FS.getStream(suggestFD);
if (suggest) FS.close(suggest);
return FS.open(path, flags, 0, suggestFD, suggestFD).fd;
},doReadv:function(stream, iov, iovcnt, offset) {
var ret = 0;
for (var i = 0; i < iovcnt; i++) {
var ptr = HEAP32[(((iov)+(i*8))>>2)];
var len = HEAP32[(((iov)+(i*8 + 4))>>2)];
var curr = FS.read(stream, HEAP8,ptr, len, offset);
if (curr < 0) return -1;
ret += curr;
if (curr < len) break; // nothing more to read
}
return ret;
},doWritev:function(stream, iov, iovcnt, offset) {
var ret = 0;
for (var i = 0; i < iovcnt; i++) {
var ptr = HEAP32[(((iov)+(i*8))>>2)];
var len = HEAP32[(((iov)+(i*8 + 4))>>2)];
var curr = FS.write(stream, HEAP8,ptr, len, offset);
if (curr < 0) return -1;
ret += curr;
}
return ret;
},varargs:undefined,get:function() {
assert(SYSCALLS.varargs != undefined);
SYSCALLS.varargs += 4;
var ret = HEAP32[(((SYSCALLS.varargs)-(4))>>2)];
return ret;
},getStr:function(ptr) {
var ret = UTF8ToString(ptr);
return ret;
},getStreamFromFD:function(fd) {
var stream = FS.getStream(fd);
if (!stream) throw new FS.ErrnoError(8);
return stream;
},get64:function(low, high) {
if (low >= 0) assert(high === 0);
else assert(high === -1);
return low;
}};
function ___syscall_fcntl64(fd, cmd, varargs) {
SYSCALLS.varargs = varargs;
try {
var stream = SYSCALLS.getStreamFromFD(fd);
switch (cmd) {
case 0: {
var arg = SYSCALLS.get();
if (arg < 0) {
return -28;
}
var newStream;
newStream = FS.open(stream.path, stream.flags, 0, 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 = SYSCALLS.get();
stream.flags |= arg;
return 0;
}
case 5:
/* case 5: Currently in musl F_GETLK64 has same value as F_GETLK, so omitted to avoid duplicate case blocks. If that changes, uncomment this */ {
var arg = SYSCALLS.get();
var offset = 0;
// We're always unlocked.
HEAP16[(((arg)+(offset))>>1)] = 2;
return 0;
}
case 6:
case 7:
/* case 6: Currently in musl F_SETLK64 has same value as F_SETLK, so omitted to avoid duplicate case blocks. If that changes, uncomment this */
/* case 7: Currently in musl F_SETLKW64 has same value as F_SETLKW, so omitted to avoid duplicate case blocks. If that changes, uncomment this */
return 0; // Pretend that the locking is successful.
case 16:
case 8:
return -28; // These are for sockets. We don't have them fully implemented yet.
case 9:
// musl trusts getown return values, due to a bug where they must be, as they overlap with errors. just return -1 here, so fnctl() returns that, and we set errno ourselves.
setErrNo(28);
return -1;
default: {
return -28;
}
}
} catch (e) {
if (typeof FS == 'undefined' || !(e instanceof FS.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:
case 21505: {
if (!stream.tty) return -59;
return 0;
}
case 21510:
case 21511:
case 21512:
case 21506:
case 21507:
case 21508: {
if (!stream.tty) return -59;
return 0; // no-op, not actually adjusting terminal settings
}
case 21519: {
if (!stream.tty) return -59;
var argp = SYSCALLS.get();
HEAP32[((argp)>>2)] = 0;
return 0;
}
case 21520: {
if (!stream.tty) return -59;
return -28; // not supported
}
case 21531: {
var argp = SYSCALLS.get();
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;
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;
}
default: abort('bad ioctl syscall ' + op);
}
} catch (e) {
if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
return -e.errno;
}
}
function ___syscall_open(path, flags, varargs) {
SYSCALLS.varargs = varargs;
try {
var pathname = SYSCALLS.getStr(path);
var mode = varargs ? SYSCALLS.get() : 0;
var stream = FS.open(pathname, flags, mode);
return stream.fd;
} catch (e) {
if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
return -e.errno;
}
}
function _abort() {
abort('native code called abort()');
}
function _emscripten_memcpy_big(dest, src, num) {
HEAPU8.copyWithin(dest, src, src + num);
}
function _emscripten_get_heap_max() {
return HEAPU8.length;
}
function abortOnCannotGrowMemory(requestedSize) {
abort('Cannot enlarge memory arrays to size ' + requestedSize + ' bytes (OOM). Either (1) compile with -s INITIAL_MEMORY=X with X higher than the current value ' + HEAP8.length + ', (2) compile with -s ALLOW_MEMORY_GROWTH=1 which allows increasing the size at runtime, or (3) if you want malloc to return NULL (0) instead of this abort, compile with -s ABORTING_MALLOC=0 ');
}
function _emscripten_resize_heap(requestedSize) {
var oldSize = HEAPU8.length;
requestedSize = requestedSize >>> 0;
abortOnCannotGrowMemory(requestedSize);
}
var ENV = {};
function getExecutableName() {
return thisProgram || './this.program';
}
function getEnvStrings() {
if (!getEnvStrings.strings) {
// Default values.
// Browser language detection #8751
var lang = ((typeof navigator == 'object' && navigator.languages && navigator.languages[0]) || 'C').replace('-', '_') + '.UTF-8';
var env = {
'USER': 'web_user',
'LOGNAME': 'web_user',
'PATH': '/',
'PWD': '/',
'HOME': '/home/web_user',
'LANG': lang,
'_': getExecutableName()
};
// Apply the user-provided values, if any.
for (var x in ENV) {
// x is a key in ENV; if ENV[x] is undefined, that means it was
// explicitly set to be so. We allow user code to do that to
// force variables with default values to remain unset.
if (ENV[x] === undefined) delete env[x];
else env[x] = ENV[x];
}
var strings = [];
for (var x in env) {
strings.push(x + '=' + env[x]);
}
getEnvStrings.strings = strings;
}
return getEnvStrings.strings;
}
function _environ_get(__environ, environ_buf) {
var bufSize = 0;
getEnvStrings().forEach(function(string, i) {
var ptr = environ_buf + bufSize;
HEAP32[(((__environ)+(i * 4))>>2)] = ptr;
writeAsciiToMemory(string, ptr);
bufSize += string.length + 1;
});
return 0;
}
function _environ_sizes_get(penviron_count, penviron_buf_size) {
var strings = getEnvStrings();
HEAP32[((penviron_count)>>2)] = strings.length;
var bufSize = 0;
strings.forEach(function(string) {
bufSize += string.length + 1;
});
HEAP32[((penviron_buf_size)>>2)] = bufSize;
return 0;
}
function _fd_close(fd) {
try {
var stream = SYSCALLS.getStreamFromFD(fd);
FS.close(stream);
return 0;
} catch (e) {
if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
return e.errno;
}
}
function _fd_read(fd, iov, iovcnt, pnum) {
try {
var stream = SYSCALLS.getStreamFromFD(fd);
var num = SYSCALLS.doReadv(stream, iov, iovcnt);
HEAP32[((pnum)>>2)] = num;
return 0;
} catch (e) {
if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
return e.errno;
}
}
function _fd_seek(fd, offset_low, offset_high, whence, newOffset) {
try {
var stream = SYSCALLS.getStreamFromFD(fd);
var HIGH_OFFSET = 0x100000000; // 2^32
// use an unsigned operator on low and shift high by 32-bits
var offset = offset_high * HIGH_OFFSET + (offset_low >>> 0);
var DOUBLE_LIMIT = 0x20000000000000; // 2^53
// we also check for equality since DOUBLE_LIMIT + 1 == DOUBLE_LIMIT
if (offset <= -DOUBLE_LIMIT || offset >= DOUBLE_LIMIT) {
return -61;
}
FS.llseek(stream, offset, whence);
(tempI64 = [stream.position>>>0,(tempDouble=stream.position,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>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 instanceof FS.ErrnoError)) throw e;
return e.errno;
}
}
function _fd_write(fd, iov, iovcnt, pnum) {
try {
;
var stream = SYSCALLS.getStreamFromFD(fd);
var num = SYSCALLS.doWritev(stream, iov, iovcnt);
HEAP32[((pnum)>>2)] = num;
return 0;
} catch (e) {
if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e;
return e.errno;
}
}
function _setTempRet0(val) {
setTempRet0(val);
}
function __isLeapYear(year) {
return year%4 === 0 && (year%100 !== 0 || year%400 === 0);
}
function __arraySum(array, index) {
var sum = 0;
for (var i = 0; i <= index; sum += array[i++]) {
// no-op
}
return sum;
}
var __MONTH_DAYS_LEAP = [31,29,31,30,31,30,31,31,30,31,30,31];
var __MONTH_DAYS_REGULAR = [31,28,31,30,31,30,31,31,30,31,30,31];
function __addDays(date, days) {
var newDate = new Date(date.getTime());
while (days > 0) {
var leap = __isLeapYear(newDate.getFullYear());
var currentMonth = newDate.getMonth();
var daysInCurrentMonth = (leap ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR)[currentMonth];
if (days > daysInCurrentMonth-newDate.getDate()) {
// we spill over to next month
days -= (daysInCurrentMonth-newDate.getDate()+1);
newDate.setDate(1);
if (currentMonth < 11) {
newDate.setMonth(currentMonth+1)
} else {
newDate.setMonth(0);
newDate.setFullYear(newDate.getFullYear()+1);
}
} else {
// we stay in current month
newDate.setDate(newDate.getDate()+days);
return newDate;
}
}
return newDate;
}
function _strftime(s, maxsize, format, tm) {
// size_t strftime(char *restrict s, size_t maxsize, const char *restrict format, const struct tm *restrict timeptr);
// http://pubs.opengroup.org/onlinepubs/009695399/functions/strftime.html
var tm_zone = HEAP32[(((tm)+(40))>>2)];
var date = {
tm_sec: HEAP32[((tm)>>2)],
tm_min: HEAP32[(((tm)+(4))>>2)],
tm_hour: HEAP32[(((tm)+(8))>>2)],
tm_mday: HEAP32[(((tm)+(12))>>2)],
tm_mon: HEAP32[(((tm)+(16))>>2)],
tm_year: HEAP32[(((tm)+(20))>>2)],
tm_wday: HEAP32[(((tm)+(24))>>2)],
tm_yday: HEAP32[(((tm)+(28))>>2)],
tm_isdst: HEAP32[(((tm)+(32))>>2)],
tm_gmtoff: HEAP32[(((tm)+(36))>>2)],
tm_zone: tm_zone ? UTF8ToString(tm_zone) : ''
};
var pattern = UTF8ToString(format);
// expand format
var EXPANSION_RULES_1 = {
'%c': '%a %b %d %H:%M:%S %Y', // Replaced by the locale's appropriate date and time representation - e.g., Mon Aug 3 14:02:01 2013
'%D': '%m/%d/%y', // Equivalent to %m / %d / %y
'%F': '%Y-%m-%d', // Equivalent to %Y - %m - %d
'%h': '%b', // Equivalent to %b
'%r': '%I:%M:%S %p', // Replaced by the time in a.m. and p.m. notation
'%R': '%H:%M', // Replaced by the time in 24-hour notation
'%T': '%H:%M:%S', // Replaced by the time
'%x': '%m/%d/%y', // Replaced by the locale's appropriate date representation
'%X': '%H:%M:%S', // Replaced by the locale's appropriate time representation
// Modified Conversion Specifiers
'%Ec': '%c', // Replaced by the locale's alternative appropriate date and time representation.
'%EC': '%C', // Replaced by the name of the base year (period) in the locale's alternative representation.
'%Ex': '%m/%d/%y', // Replaced by the locale's alternative date representation.
'%EX': '%H:%M:%S', // Replaced by the locale's alternative time representation.
'%Ey': '%y', // Replaced by the offset from %EC (year only) in the locale's alternative representation.
'%EY': '%Y', // Replaced by the full alternative year representation.
'%Od': '%d', // Replaced by the day of the month, using the locale's alternative numeric symbols, filled as needed with leading zeros if there is any alternative symbol for zero; otherwise, with leading <space> characters.
'%Oe': '%e', // Replaced by the day of the month, using the locale's alternative numeric symbols, filled as needed with leading <space> characters.
'%OH': '%H', // Replaced by the hour (24-hour clock) using the locale's alternative numeric symbols.
'%OI': '%I', // Replaced by the hour (12-hour clock) using the locale's alternative numeric symbols.
'%Om': '%m', // Replaced by the month using the locale's alternative numeric symbols.
'%OM': '%M', // Replaced by the minutes using the locale's alternative numeric symbols.
'%OS': '%S', // Replaced by the seconds using the locale's alternative numeric symbols.
'%Ou': '%u', // Replaced by the weekday as a number in the locale's alternative representation (Monday=1).
'%OU': '%U', // Replaced by the week number of the year (Sunday as the first day of the week, rules corresponding to %U ) using the locale's alternative numeric symbols.
'%OV': '%V', // Replaced by the week number of the year (Monday as the first day of the week, rules corresponding to %V ) using the locale's alternative numeric symbols.
'%Ow': '%w', // Replaced by the number of the weekday (Sunday=0) using the locale's alternative numeric symbols.
'%OW': '%W', // Replaced by the week number of the year (Monday as the first day of the week) using the locale's alternative numeric symbols.
'%Oy': '%y', // Replaced by the year (offset from %C ) using the locale's alternative numeric symbols.
};
for (var rule in EXPANSION_RULES_1) {
pattern = pattern.replace(new RegExp(rule, 'g'), EXPANSION_RULES_1[rule]);
}
var WEEKDAYS = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
var MONTHS = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
function leadingSomething(value, digits, character) {
var str = typeof value == 'number' ? value.toString() : (value || '');
while (str.length < digits) {
str = character[0]+str;
}
return str;
}
function leadingNulls(value, digits) {
return leadingSomething(value, digits, '0');
}
function compareByDay(date1, date2) {
function sgn(value) {
return value < 0 ? -1 : (value > 0 ? 1 : 0);
}
var compare;
if ((compare = sgn(date1.getFullYear()-date2.getFullYear())) === 0) {
if ((compare = sgn(date1.getMonth()-date2.getMonth())) === 0) {
compare = sgn(date1.getDate()-date2.getDate());
}
}
return compare;
}
function getFirstWeekStartDate(janFourth) {
switch (janFourth.getDay()) {
case 0: // Sunday
return new Date(janFourth.getFullYear()-1, 11, 29);
case 1: // Monday
return janFourth;
case 2: // Tuesday
return new Date(janFourth.getFullYear(), 0, 3);
case 3: // Wednesday
return new Date(janFourth.getFullYear(), 0, 2);
case 4: // Thursday
return new Date(janFourth.getFullYear(), 0, 1);
case 5: // Friday
return new Date(janFourth.getFullYear()-1, 11, 31);
case 6: // Saturday
return new Date(janFourth.getFullYear()-1, 11, 30);
}
}
function getWeekBasedYear(date) {
var thisDate = __addDays(new Date(date.tm_year+1900, 0, 1), date.tm_yday);
var janFourthThisYear = new Date(thisDate.getFullYear(), 0, 4);
var janFourthNextYear = new Date(thisDate.getFullYear()+1, 0, 4);
var firstWeekStartThisYear = getFirstWeekStartDate(janFourthThisYear);
var firstWeekStartNextYear = getFirstWeekStartDate(janFourthNextYear);
if (compareByDay(firstWeekStartThisYear, thisDate) <= 0) {
// this date is after the start of the first week of this year
if (compareByDay(firstWeekStartNextYear, thisDate) <= 0) {
return thisDate.getFullYear()+1;
} else {
return thisDate.getFullYear();
}
} else {
return thisDate.getFullYear()-1;
}
}
var EXPANSION_RULES_2 = {
'%a': function(date) {
return WEEKDAYS[date.tm_wday].substring(0,3);
},
'%A': function(date) {
return WEEKDAYS[date.tm_wday];
},
'%b': function(date) {
return MONTHS[date.tm_mon].substring(0,3);
},
'%B': function(date) {
return MONTHS[date.tm_mon];
},
'%C': function(date) {
var year = date.tm_year+1900;
return leadingNulls((year/100)|0,2);
},
'%d': function(date) {
return leadingNulls(date.tm_mday, 2);
},
'%e': function(date) {
return leadingSomething(date.tm_mday, 2, ' ');
},
'%g': function(date) {
// %g, %G, and %V give values according to the ISO 8601:2000 standard week-based year.
// In this system, weeks begin on a Monday and week 1 of the year is the week that includes
// January 4th, which is also the week that includes the first Thursday of the year, and
// is also the first week that contains at least four days in the year.
// If the first Monday of January is the 2nd, 3rd, or 4th, the preceding days are part of
// the last week of the preceding year; thus, for Saturday 2nd January 1999,
// %G is replaced by 1998 and %V is replaced by 53. If December 29th, 30th,
// or 31st is a Monday, it and any following days are part of week 1 of the following year.
// Thus, for Tuesday 30th December 1997, %G is replaced by 1998 and %V is replaced by 01.
return getWeekBasedYear(date).toString().substring(2);
},
'%G': function(date) {
return getWeekBasedYear(date);
},
'%H': function(date) {
return leadingNulls(date.tm_hour, 2);
},
'%I': function(date) {
var twelveHour = date.tm_hour;
if (twelveHour == 0) twelveHour = 12;
else if (twelveHour > 12) twelveHour -= 12;
return leadingNulls(twelveHour, 2);
},
'%j': function(date) {
// Day of the year (001-366)
return leadingNulls(date.tm_mday+__arraySum(__isLeapYear(date.tm_year+1900) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, date.tm_mon-1), 3);
},
'%m': function(date) {
return leadingNulls(date.tm_mon+1, 2);
},
'%M': function(date) {
return leadingNulls(date.tm_min, 2);
},
'%n': function() {
return '\n';
},
'%p': function(date) {
if (date.tm_hour >= 0 && date.tm_hour < 12) {
return 'AM';
} else {
return 'PM';
}
},
'%S': function(date) {
return leadingNulls(date.tm_sec, 2);
},
'%t': function() {
return '\t';
},
'%u': function(date) {
return date.tm_wday || 7;
},
'%U': function(date) {
// Replaced by the week number of the year as a decimal number [00,53].
// The first Sunday of January is the first day of week 1;
// days in the new year before this are in week 0. [ tm_year, tm_wday, tm_yday]
var janFirst = new Date(date.tm_year+1900, 0, 1);
var firstSunday = janFirst.getDay() === 0 ? janFirst : __addDays(janFirst, 7-janFirst.getDay());
var endDate = new Date(date.tm_year+1900, date.tm_mon, date.tm_mday);
// is target date after the first Sunday?
if (compareByDay(firstSunday, endDate) < 0) {
// calculate difference in days between first Sunday and endDate
var februaryFirstUntilEndMonth = __arraySum(__isLeapYear(endDate.getFullYear()) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, endDate.getMonth()-1)-31;
var firstSundayUntilEndJanuary = 31-firstSunday.getDate();
var days = firstSundayUntilEndJanuary+februaryFirstUntilEndMonth+endDate.getDate();
return leadingNulls(Math.ceil(days/7), 2);
}
return compareByDay(firstSunday, janFirst) === 0 ? '01': '00';
},
'%V': function(date) {
// Replaced by the week number of the year (Monday as the first day of the week)
// as a decimal number [01,53]. If the week containing 1 January has four
// or more days in the new year, then it is considered week 1.
// Otherwise, it is the last week of the previous year, and the next week is week 1.
// Both January 4th and the first Thursday of January are always in week 1. [ tm_year, tm_wday, tm_yday]
var janFourthThisYear = new Date(date.tm_year+1900, 0, 4);
var janFourthNextYear = new Date(date.tm_year+1901, 0, 4);
var firstWeekStartThisYear = getFirstWeekStartDate(janFourthThisYear);
var firstWeekStartNextYear = getFirstWeekStartDate(janFourthNextYear);
var endDate = __addDays(new Date(date.tm_year+1900, 0, 1), date.tm_yday);
if (compareByDay(endDate, firstWeekStartThisYear) < 0) {
// if given date is before this years first week, then it belongs to the 53rd week of last year
return '53';
}
if (compareByDay(firstWeekStartNextYear, endDate) <= 0) {
// if given date is after next years first week, then it belongs to the 01th week of next year
return '01';
}
// given date is in between CW 01..53 of this calendar year
var daysDifference;
if (firstWeekStartThisYear.getFullYear() < date.tm_year+1900) {
// first CW of this year starts last year
daysDifference = date.tm_yday+32-firstWeekStartThisYear.getDate()
} else {
// first CW of this year starts this year
daysDifference = date.tm_yday+1-firstWeekStartThisYear.getDate();
}
return leadingNulls(Math.ceil(daysDifference/7), 2);
},
'%w': function(date) {
return date.tm_wday;
},
'%W': function(date) {
// Replaced by the week number of the year as a decimal number [00,53].
// The first Monday of January is the first day of week 1;
// days in the new year before this are in week 0. [ tm_year, tm_wday, tm_yday]
var janFirst = new Date(date.tm_year, 0, 1);
var firstMonday = janFirst.getDay() === 1 ? janFirst : __addDays(janFirst, janFirst.getDay() === 0 ? 1 : 7-janFirst.getDay()+1);
var endDate = new Date(date.tm_year+1900, date.tm_mon, date.tm_mday);
// is target date after the first Monday?
if (compareByDay(firstMonday, endDate) < 0) {
var februaryFirstUntilEndMonth = __arraySum(__isLeapYear(endDate.getFullYear()) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, endDate.getMonth()-1)-31;
var firstMondayUntilEndJanuary = 31-firstMonday.getDate();
var days = firstMondayUntilEndJanuary+februaryFirstUntilEndMonth+endDate.getDate();
return leadingNulls(Math.ceil(days/7), 2);
}
return compareByDay(firstMonday, janFirst) === 0 ? '01': '00';
},
'%y': function(date) {
// Replaced by the last two digits of the year as a decimal number [00,99]. [ tm_year]
return (date.tm_year+1900).toString().substring(2);
},
'%Y': function(date) {
// Replaced by the year as a decimal number (for example, 1997). [ tm_year]
return date.tm_year+1900;
},
'%z': function(date) {
// Replaced by the offset from UTC in the ISO 8601:2000 standard format ( +hhmm or -hhmm ).
// For example, "-0430" means 4 hours 30 minutes behind UTC (west of Greenwich).
var off = date.tm_gmtoff;
var ahead = off >= 0;
off = Math.abs(off) / 60;
// convert from minutes into hhmm format (which means 60 minutes = 100 units)
off = (off / 60)*100 + (off % 60);
return (ahead ? '+' : '-') + String("0000" + off).slice(-4);
},
'%Z': function(date) {
return date.tm_zone;
},
'%%': function() {
return '%';
}
};
// Replace %% with a pair of NULLs (which cannot occur in a C string), then
// re-inject them after processing.
pattern = pattern.replace(/%%/g, '\0\0')
for (var rule in EXPANSION_RULES_2) {
if (pattern.includes(rule)) {
pattern = pattern.replace(new RegExp(rule, 'g'), EXPANSION_RULES_2[rule](date));
}
}
pattern = pattern.replace(/\0\0/g, '%')
var bytes = intArrayFromString(pattern, false);
if (bytes.length > maxsize) {
return 0;
}
writeArrayToMemory(bytes, s);
return bytes.length-1;
}
function _strftime_l(s, maxsize, format, tm) {
return _strftime(s, maxsize, format, tm); // no locale support yet
}
var FSNode = /** @constructor */ function(parent, name, mode, rdev) {
if (!parent) {
parent = this; // root node sets parent to itself
}
this.parent = parent;
this.mount = parent.mount;
this.mounted = null;
this.id = FS.nextInode++;
this.name = name;
this.mode = mode;
this.node_ops = {};
this.stream_ops = {};
this.rdev = rdev;
};
var readMode = 292/*292*/ | 73/*73*/;
var writeMode = 146/*146*/;
Object.defineProperties(FSNode.prototype, {
read: {
get: /** @this{FSNode} */function() {
return (this.mode & readMode) === readMode;
},
set: /** @this{FSNode} */function(val) {
val ? this.mode |= readMode : this.mode &= ~readMode;
}
},
write: {
get: /** @this{FSNode} */function() {
return (this.mode & writeMode) === writeMode;
},
set: /** @this{FSNode} */function(val) {
val ? this.mode |= writeMode : this.mode &= ~writeMode;
}
},
isFolder: {
get: /** @this{FSNode} */function() {
return FS.isDir(this.mode);
}
},
isDevice: {
get: /** @this{FSNode} */function() {
return FS.isChrdev(this.mode);
}
}
});
FS.FSNode = FSNode;
FS.staticInit();;
ERRNO_CODES = {
'EPERM': 63,
'ENOENT': 44,
'ESRCH': 71,
'EINTR': 27,
'EIO': 29,
'ENXIO': 60,
'E2BIG': 1,
'ENOEXEC': 45,
'EBADF': 8,
'ECHILD': 12,
'EAGAIN': 6,
'EWOULDBLOCK': 6,
'ENOMEM': 48,
'EACCES': 2,
'EFAULT': 21,
'ENOTBLK': 105,
'EBUSY': 10,
'EEXIST': 20,
'EXDEV': 75,
'ENODEV': 43,
'ENOTDIR': 54,
'EISDIR': 31,
'EINVAL': 28,
'ENFILE': 41,
'EMFILE': 33,
'ENOTTY': 59,
'ETXTBSY': 74,
'EFBIG': 22,
'ENOSPC': 51,
'ESPIPE': 70,
'EROFS': 69,
'EMLINK': 34,
'EPIPE': 64,
'EDOM': 18,
'ERANGE': 68,
'ENOMSG': 49,
'EIDRM': 24,
'ECHRNG': 106,
'EL2NSYNC': 156,
'EL3HLT': 107,
'EL3RST': 108,
'ELNRNG': 109,
'EUNATCH': 110,
'ENOCSI': 111,
'EL2HLT': 112,
'EDEADLK': 16,
'ENOLCK': 46,
'EBADE': 113,
'EBADR': 114,
'EXFULL': 115,
'ENOANO': 104,
'EBADRQC': 103,
'EBADSLT': 102,
'EDEADLOCK': 16,
'EBFONT': 101,
'ENOSTR': 100,
'ENODATA': 116,
'ETIME': 117,
'ENOSR': 118,
'ENONET': 119,
'ENOPKG': 120,
'EREMOTE': 121,
'ENOLINK': 47,
'EADV': 122,
'ESRMNT': 123,
'ECOMM': 124,
'EPROTO': 65,
'EMULTIHOP': 36,
'EDOTDOT': 125,
'EBADMSG': 9,
'ENOTUNIQ': 126,
'EBADFD': 127,
'EREMCHG': 128,
'ELIBACC': 129,
'ELIBBAD': 130,
'ELIBSCN': 131,
'ELIBMAX': 132,
'ELIBEXEC': 133,
'ENOSYS': 52,
'ENOTEMPTY': 55,
'ENAMETOOLONG': 37,
'ELOOP': 32,
'EOPNOTSUPP': 138,
'EPFNOSUPPORT': 139,
'ECONNRESET': 15,
'ENOBUFS': 42,
'EAFNOSUPPORT': 5,
'EPROTOTYPE': 67,
'ENOTSOCK': 57,
'ENOPROTOOPT': 50,
'ESHUTDOWN': 140,
'ECONNREFUSED': 14,
'EADDRINUSE': 3,
'ECONNABORTED': 13,
'ENETUNREACH': 40,
'ENETDOWN': 38,
'ETIMEDOUT': 73,
'EHOSTDOWN': 142,
'EHOSTUNREACH': 23,
'EINPROGRESS': 26,
'EALREADY': 7,
'EDESTADDRREQ': 17,
'EMSGSIZE': 35,
'EPROTONOSUPPORT': 66,
'ESOCKTNOSUPPORT': 137,
'EADDRNOTAVAIL': 4,
'ENETRESET': 39,
'EISCONN': 30,
'ENOTCONN': 53,
'ETOOMANYREFS': 141,
'EUSERS': 136,
'EDQUOT': 19,
'ESTALE': 72,
'ENOTSUP': 138,
'ENOMEDIUM': 148,
'EILSEQ': 25,
'EOVERFLOW': 61,
'ECANCELED': 11,
'ENOTRECOVERABLE': 56,
'EOWNERDEAD': 62,
'ESTRPIPE': 135,
};;
var ASSERTIONS = true;
/** @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;
}
function intArrayToString(array) {
var ret = [];
for (var i = 0; i < array.length; i++) {
var chr = array[i];
if (chr > 0xFF) {
if (ASSERTIONS) {
assert(false, 'Character code ' + chr + ' (' + String.fromCharCode(chr) + ') at offset ' + i + ' not in 0x00-0xFF.');
}
chr &= 0xFF;
}
ret.push(String.fromCharCode(chr));
}
return ret.join('');
}
function checkIncomingModuleAPI() {
ignoredModuleProp('fetchSettings');
}
var asmLibraryArg = {
"__cxa_allocate_exception": ___cxa_allocate_exception,
"__cxa_throw": ___cxa_throw,
"__syscall_fcntl64": ___syscall_fcntl64,
"__syscall_ioctl": ___syscall_ioctl,
"__syscall_open": ___syscall_open,
"abort": _abort,
"emscripten_memcpy_big": _emscripten_memcpy_big,
"emscripten_resize_heap": _emscripten_resize_heap,
"environ_get": _environ_get,
"environ_sizes_get": _environ_sizes_get,
"fd_close": _fd_close,
"fd_read": _fd_read,
"fd_seek": _fd_seek,
"fd_write": _fd_write,
"setTempRet0": _setTempRet0,
"strftime_l": _strftime_l
};
var asm = createWasm();
/** @type {function(...*):?} */
var ___wasm_call_ctors = Module["___wasm_call_ctors"] = createExportWrapper("__wasm_call_ctors");
/** @type {function(...*):?} */
var _main = Module["_main"] = createExportWrapper("main");
/** @type {function(...*):?} */
var ___errno_location = Module["___errno_location"] = createExportWrapper("__errno_location");
/** @type {function(...*):?} */
var ___stdio_exit = Module["___stdio_exit"] = createExportWrapper("__stdio_exit");
/** @type {function(...*):?} */
var _malloc = Module["_malloc"] = createExportWrapper("malloc");
/** @type {function(...*):?} */
var _emscripten_stack_init = Module["_emscripten_stack_init"] = function() {
return (_emscripten_stack_init = Module["_emscripten_stack_init"] = Module["asm"]["emscripten_stack_init"]).apply(null, arguments);
};
/** @type {function(...*):?} */
var _emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = function() {
return (_emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = Module["asm"]["emscripten_stack_get_free"]).apply(null, arguments);
};
/** @type {function(...*):?} */
var _emscripten_stack_get_base = Module["_emscripten_stack_get_base"] = function() {
return (_emscripten_stack_get_base = Module["_emscripten_stack_get_base"] = Module["asm"]["emscripten_stack_get_base"]).apply(null, arguments);
};
/** @type {function(...*):?} */
var _emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = function() {
return (_emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = Module["asm"]["emscripten_stack_get_end"]).apply(null, arguments);
};
/** @type {function(...*):?} */
var stackSave = Module["stackSave"] = createExportWrapper("stackSave");
/** @type {function(...*):?} */
var stackRestore = Module["stackRestore"] = createExportWrapper("stackRestore");
/** @type {function(...*):?} */
var stackAlloc = Module["stackAlloc"] = createExportWrapper("stackAlloc");
/** @type {function(...*):?} */
var dynCall_jiji = Module["dynCall_jiji"] = createExportWrapper("dynCall_jiji");
/** @type {function(...*):?} */
var dynCall_viijii = Module["dynCall_viijii"] = createExportWrapper("dynCall_viijii");
/** @type {function(...*):?} */
var dynCall_iiiiij = Module["dynCall_iiiiij"] = createExportWrapper("dynCall_iiiiij");
/** @type {function(...*):?} */
var dynCall_iiiiijj = Module["dynCall_iiiiijj"] = createExportWrapper("dynCall_iiiiijj");
/** @type {function(...*):?} */
var dynCall_iiiiiijj = Module["dynCall_iiiiiijj"] = createExportWrapper("dynCall_iiiiiijj");
// === Auto-generated postamble setup entry stuff ===
unexportedRuntimeFunction('intArrayFromString', false);
unexportedRuntimeFunction('intArrayToString', false);
unexportedRuntimeFunction('ccall', false);
unexportedRuntimeFunction('cwrap', false);
unexportedRuntimeFunction('setValue', false);
unexportedRuntimeFunction('getValue', false);
unexportedRuntimeFunction('allocate', false);
unexportedRuntimeFunction('UTF8ArrayToString', false);
unexportedRuntimeFunction('UTF8ToString', false);
unexportedRuntimeFunction('stringToUTF8Array', false);
unexportedRuntimeFunction('stringToUTF8', false);
unexportedRuntimeFunction('lengthBytesUTF8', false);
unexportedRuntimeFunction('stackTrace', false);
unexportedRuntimeFunction('addOnPreRun', false);
unexportedRuntimeFunction('addOnInit', false);
unexportedRuntimeFunction('addOnPreMain', false);
unexportedRuntimeFunction('addOnExit', false);
unexportedRuntimeFunction('addOnPostRun', false);
unexportedRuntimeFunction('writeStringToMemory', false);
unexportedRuntimeFunction('writeArrayToMemory', false);
unexportedRuntimeFunction('writeAsciiToMemory', false);
unexportedRuntimeFunction('addRunDependency', true);
unexportedRuntimeFunction('removeRunDependency', true);
unexportedRuntimeFunction('FS_createFolder', false);
unexportedRuntimeFunction('FS_createPath', true);
unexportedRuntimeFunction('FS_createDataFile', true);
unexportedRuntimeFunction('FS_createPreloadedFile', true);
unexportedRuntimeFunction('FS_createLazyFile', true);
unexportedRuntimeFunction('FS_createLink', false);
unexportedRuntimeFunction('FS_createDevice', true);
unexportedRuntimeFunction('FS_unlink', true);
unexportedRuntimeFunction('getLEB', false);
unexportedRuntimeFunction('getFunctionTables', false);
unexportedRuntimeFunction('alignFunctionTables', false);
unexportedRuntimeFunction('registerFunctions', false);
unexportedRuntimeFunction('addFunction', false);
unexportedRuntimeFunction('removeFunction', false);
unexportedRuntimeFunction('getFuncWrapper', false);
unexportedRuntimeFunction('prettyPrint', false);
unexportedRuntimeFunction('dynCall', false);
unexportedRuntimeFunction('getCompilerSetting', false);
unexportedRuntimeFunction('print', false);
unexportedRuntimeFunction('printErr', false);
unexportedRuntimeFunction('getTempRet0', false);
unexportedRuntimeFunction('setTempRet0', false);
unexportedRuntimeFunction('callMain', false);
unexportedRuntimeFunction('abort', false);
unexportedRuntimeFunction('keepRuntimeAlive', false);
unexportedRuntimeFunction('zeroMemory', false);
unexportedRuntimeFunction('stringToNewUTF8', false);
unexportedRuntimeFunction('abortOnCannotGrowMemory', false);
unexportedRuntimeFunction('emscripten_realloc_buffer', false);
unexportedRuntimeFunction('ENV', false);
unexportedRuntimeFunction('withStackSave', false);
unexportedRuntimeFunction('ERRNO_CODES', false);
unexportedRuntimeFunction('ERRNO_MESSAGES', false);
unexportedRuntimeFunction('setErrNo', false);
unexportedRuntimeFunction('inetPton4', false);
unexportedRuntimeFunction('inetNtop4', false);
unexportedRuntimeFunction('inetPton6', false);
unexportedRuntimeFunction('inetNtop6', false);
unexportedRuntimeFunction('readSockaddr', false);
unexportedRuntimeFunction('writeSockaddr', false);
unexportedRuntimeFunction('DNS', false);
unexportedRuntimeFunction('getHostByName', false);
unexportedRuntimeFunction('Protocols', false);
unexportedRuntimeFunction('Sockets', false);
unexportedRuntimeFunction('getRandomDevice', false);
unexportedRuntimeFunction('traverseStack', false);
unexportedRuntimeFunction('convertFrameToPC', false);
unexportedRuntimeFunction('UNWIND_CACHE', false);
unexportedRuntimeFunction('saveInUnwindCache', false);
unexportedRuntimeFunction('convertPCtoSourceLocation', false);
unexportedRuntimeFunction('readAsmConstArgsArray', false);
unexportedRuntimeFunction('readAsmConstArgs', false);
unexportedRuntimeFunction('mainThreadEM_ASM', false);
unexportedRuntimeFunction('jstoi_q', false);
unexportedRuntimeFunction('jstoi_s', false);
unexportedRuntimeFunction('getExecutableName', false);
unexportedRuntimeFunction('listenOnce', false);
unexportedRuntimeFunction('autoResumeAudioContext', false);
unexportedRuntimeFunction('dynCallLegacy', false);
unexportedRuntimeFunction('getDynCaller', false);
unexportedRuntimeFunction('dynCall', false);
unexportedRuntimeFunction('callRuntimeCallbacks', false);
unexportedRuntimeFunction('wasmTableMirror', false);
unexportedRuntimeFunction('setWasmTableEntry', false);
unexportedRuntimeFunction('getWasmTableEntry', false);
unexportedRuntimeFunction('handleException', false);
unexportedRuntimeFunction('runtimeKeepalivePush', false);
unexportedRuntimeFunction('runtimeKeepalivePop', false);
unexportedRuntimeFunction('callUserCallback', false);
unexportedRuntimeFunction('maybeExit', false);
unexportedRuntimeFunction('safeSetTimeout', false);
unexportedRuntimeFunction('asmjsMangle', false);
unexportedRuntimeFunction('asyncLoad', false);
unexportedRuntimeFunction('alignMemory', false);
unexportedRuntimeFunction('mmapAlloc', false);
unexportedRuntimeFunction('reallyNegative', false);
unexportedRuntimeFunction('unSign', false);
unexportedRuntimeFunction('reSign', false);
unexportedRuntimeFunction('formatString', false);
unexportedRuntimeFunction('PATH', false);
unexportedRuntimeFunction('PATH_FS', false);
unexportedRuntimeFunction('SYSCALLS', false);
unexportedRuntimeFunction('getSocketFromFD', false);
unexportedRuntimeFunction('getSocketAddress', false);
unexportedRuntimeFunction('JSEvents', false);
unexportedRuntimeFunction('registerKeyEventCallback', false);
unexportedRuntimeFunction('specialHTMLTargets', false);
unexportedRuntimeFunction('maybeCStringToJsString', false);
unexportedRuntimeFunction('findEventTarget', false);
unexportedRuntimeFunction('findCanvasEventTarget', false);
unexportedRuntimeFunction('getBoundingClientRect', false);
unexportedRuntimeFunction('fillMouseEventData', false);
unexportedRuntimeFunction('registerMouseEventCallback', false);
unexportedRuntimeFunction('registerWheelEventCallback', false);
unexportedRuntimeFunction('registerUiEventCallback', false);
unexportedRuntimeFunction('registerFocusEventCallback', false);
unexportedRuntimeFunction('fillDeviceOrientationEventData', false);
unexportedRuntimeFunction('registerDeviceOrientationEventCallback', false);
unexportedRuntimeFunction('fillDeviceMotionEventData', false);
unexportedRuntimeFunction('registerDeviceMotionEventCallback', false);
unexportedRuntimeFunction('screenOrientation', false);
unexportedRuntimeFunction('fillOrientationChangeEventData', false);
unexportedRuntimeFunction('registerOrientationChangeEventCallback', false);
unexportedRuntimeFunction('fillFullscreenChangeEventData', false);
unexportedRuntimeFunction('registerFullscreenChangeEventCallback', false);
unexportedRuntimeFunction('registerRestoreOldStyle', false);
unexportedRuntimeFunction('hideEverythingExceptGivenElement', false);
unexportedRuntimeFunction('restoreHiddenElements', false);
unexportedRuntimeFunction('setLetterbox', false);
unexportedRuntimeFunction('currentFullscreenStrategy', false);
unexportedRuntimeFunction('restoreOldWindowedStyle', false);
unexportedRuntimeFunction('softFullscreenResizeWebGLRenderTarget', false);
unexportedRuntimeFunction('doRequestFullscreen', false);
unexportedRuntimeFunction('fillPointerlockChangeEventData', false);
unexportedRuntimeFunction('registerPointerlockChangeEventCallback', false);
unexportedRuntimeFunction('registerPointerlockErrorEventCallback', false);
unexportedRuntimeFunction('requestPointerLock', false);
unexportedRuntimeFunction('fillVisibilityChangeEventData', false);
unexportedRuntimeFunction('registerVisibilityChangeEventCallback', false);
unexportedRuntimeFunction('registerTouchEventCallback', false);
unexportedRuntimeFunction('fillGamepadEventData', false);
unexportedRuntimeFunction('registerGamepadEventCallback', false);
unexportedRuntimeFunction('registerBeforeUnloadEventCallback', false);
unexportedRuntimeFunction('fillBatteryEventData', false);
unexportedRuntimeFunction('battery', false);
unexportedRuntimeFunction('registerBatteryEventCallback', false);
unexportedRuntimeFunction('setCanvasElementSize', false);
unexportedRuntimeFunction('getCanvasElementSize', false);
unexportedRuntimeFunction('demangle', false);
unexportedRuntimeFunction('demangleAll', false);
unexportedRuntimeFunction('jsStackTrace', false);
unexportedRuntimeFunction('stackTrace', false);
unexportedRuntimeFunction('getEnvStrings', false);
unexportedRuntimeFunction('checkWasiClock', false);
unexportedRuntimeFunction('writeI53ToI64', false);
unexportedRuntimeFunction('writeI53ToI64Clamped', false);
unexportedRuntimeFunction('writeI53ToI64Signaling', false);
unexportedRuntimeFunction('writeI53ToU64Clamped', false);
unexportedRuntimeFunction('writeI53ToU64Signaling', false);
unexportedRuntimeFunction('readI53FromI64', false);
unexportedRuntimeFunction('readI53FromU64', false);
unexportedRuntimeFunction('convertI32PairToI53', false);
unexportedRuntimeFunction('convertU32PairToI53', false);
unexportedRuntimeFunction('setImmediateWrapped', false);
unexportedRuntimeFunction('clearImmediateWrapped', false);
unexportedRuntimeFunction('polyfillSetImmediate', false);
unexportedRuntimeFunction('uncaughtExceptionCount', false);
unexportedRuntimeFunction('exceptionLast', false);
unexportedRuntimeFunction('exceptionCaught', false);
unexportedRuntimeFunction('ExceptionInfo', false);
unexportedRuntimeFunction('CatchInfo', false);
unexportedRuntimeFunction('exception_addRef', false);
unexportedRuntimeFunction('exception_decRef', false);
unexportedRuntimeFunction('Browser', false);
unexportedRuntimeFunction('funcWrappers', false);
unexportedRuntimeFunction('getFuncWrapper', false);
unexportedRuntimeFunction('setMainLoop', false);
unexportedRuntimeFunction('wget', false);
unexportedRuntimeFunction('FS', false);
unexportedRuntimeFunction('MEMFS', false);
unexportedRuntimeFunction('TTY', false);
unexportedRuntimeFunction('PIPEFS', false);
unexportedRuntimeFunction('SOCKFS', false);
unexportedRuntimeFunction('_setNetworkCallback', false);
unexportedRuntimeFunction('tempFixedLengthArray', false);
unexportedRuntimeFunction('miniTempWebGLFloatBuffers', false);
unexportedRuntimeFunction('heapObjectForWebGLType', false);
unexportedRuntimeFunction('heapAccessShiftForWebGLHeap', false);
unexportedRuntimeFunction('GL', false);
unexportedRuntimeFunction('emscriptenWebGLGet', false);
unexportedRuntimeFunction('computeUnpackAlignedImageSize', false);
unexportedRuntimeFunction('emscriptenWebGLGetTexPixelData', false);
unexportedRuntimeFunction('emscriptenWebGLGetUniform', false);
unexportedRuntimeFunction('webglGetUniformLocation', false);
unexportedRuntimeFunction('webglPrepareUniformLocationsBeforeFirstUse', false);
unexportedRuntimeFunction('webglGetLeftBracePos', false);
unexportedRuntimeFunction('emscriptenWebGLGetVertexAttrib', false);
unexportedRuntimeFunction('writeGLArray', false);
unexportedRuntimeFunction('AL', false);
unexportedRuntimeFunction('SDL_unicode', false);
unexportedRuntimeFunction('SDL_ttfContext', false);
unexportedRuntimeFunction('SDL_audio', false);
unexportedRuntimeFunction('SDL', false);
unexportedRuntimeFunction('SDL_gfx', false);
unexportedRuntimeFunction('GLUT', false);
unexportedRuntimeFunction('EGL', false);
unexportedRuntimeFunction('GLFW_Window', false);
unexportedRuntimeFunction('GLFW', false);
unexportedRuntimeFunction('GLEW', false);
unexportedRuntimeFunction('IDBStore', false);
unexportedRuntimeFunction('runAndAbortIfError', false);
unexportedRuntimeFunction('warnOnce', false);
unexportedRuntimeFunction('stackSave', false);
unexportedRuntimeFunction('stackRestore', false);
unexportedRuntimeFunction('stackAlloc', false);
unexportedRuntimeFunction('AsciiToString', false);
unexportedRuntimeFunction('stringToAscii', false);
unexportedRuntimeFunction('UTF16ToString', false);
unexportedRuntimeFunction('stringToUTF16', false);
unexportedRuntimeFunction('lengthBytesUTF16', false);
unexportedRuntimeFunction('UTF32ToString', false);
unexportedRuntimeFunction('stringToUTF32', false);
unexportedRuntimeFunction('lengthBytesUTF32', false);
unexportedRuntimeFunction('allocateUTF8', false);
unexportedRuntimeFunction('allocateUTF8OnStack', false);
Module["writeStackCookie"] = writeStackCookie;
Module["checkStackCookie"] = checkStackCookie;
unexportedRuntimeSymbol('ALLOC_NORMAL', false);
unexportedRuntimeSymbol('ALLOC_STACK', false);
var calledRun;
/**
* @constructor
* @this {ExitStatus}
*/
function ExitStatus(status) {
this.name = "ExitStatus";
this.message = "Program terminated with exit(" + status + ")";
this.status = status;
}
var calledMain = false;
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 callMain(args) {
assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on Module["onRuntimeInitialized"])');
assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called');
var entryFunction = Module['_main'];
args = args || [];
var argc = args.length+1;
var argv = stackAlloc((argc + 1) * 4);
HEAP32[argv >> 2] = allocateUTF8OnStack(thisProgram);
for (var i = 1; i < argc; i++) {
HEAP32[(argv >> 2) + i] = allocateUTF8OnStack(args[i - 1]);
}
HEAP32[(argv >> 2) + argc] = 0;
try {
var ret = entryFunction(argc, argv);
// In PROXY_TO_PTHREAD builds, we should never exit the runtime below, as
// execution is asynchronously handed off to a pthread.
// if we're not running an evented main loop, it's time to exit
exit(ret, /* implicit = */ true);
return ret;
}
catch (e) {
return handleException(e);
} finally {
calledMain = true;
}
}
function stackCheckInit() {
// This is normally called automatically during __wasm_call_ctors but need to
// get these values before even running any of the ctors so we call it redundantly
// here.
// TODO(sbc): Move writeStackCookie to native to to avoid this.
_emscripten_stack_init();
writeStackCookie();
}
/** @type {function(Array=)} */
function run(args) {
args = args || arguments_;
if (runDependencies > 0) {
return;
}
stackCheckInit();
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();
preMain();
if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized']();
if (shouldRunNow) callMain(args);
postRun();
}
if (Module['setStatus']) {
Module['setStatus']('Running...');
setTimeout(function() {
setTimeout(function() {
Module['setStatus']('');
}, 1);
doRun();
}, 1);
} else
{
doRun();
}
checkStackCookie();
}
Module['run'] = run;
function checkUnflushedContent() {
// Compiler settings do not allow exiting the runtime, so flushing
// the streams is not possible. but in ASSERTIONS mode we check
// if there was something to flush, and if so tell the user they
// should request that the runtime be exitable.
// Normally we would not even include flush() at all, but in ASSERTIONS
// builds we do so just for this check, and here we see if there is any
// content to flush, that is, we check if there would have been
// something a non-ASSERTIONS build would have not seen.
// How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0
// mode (which has its own special function for this; otherwise, all
// the code is inside libc)
var oldOut = out;
var oldErr = err;
var has = false;
out = err = (x) => {
has = true;
}
try { // it doesn't matter if it fails
___stdio_exit();
// also flush in the JS FS layer
['stdout', 'stderr'].forEach(function(name) {
var info = FS.analyzePath('/dev/' + name);
if (!info) return;
var stream = info.object;
var rdev = stream.rdev;
var tty = TTY.ttys[rdev];
if (tty && tty.output && tty.output.length) {
has = true;
}
});
} catch(e) {}
out = oldOut;
err = oldErr;
if (has) {
warnOnce('stdio streams had content in them that was not flushed. you should set EXIT_RUNTIME to 1 (see the FAQ), or make sure to emit a newline when you printf etc.');
}
}
/** @param {boolean|number=} implicit */
function exit(status, implicit) {
EXITSTATUS = status;
// Skip this check if the runtime is being kept alive deliberately.
// For example if `exit_with_live_runtime` is called.
if (!runtimeKeepaliveCounter) {
checkUnflushedContent();
}
if (keepRuntimeAlive()) {
// if exit() was called, we may warn the user if the runtime isn't actually being shut down
if (!implicit) {
var msg = 'program exited (with status: ' + status + '), but EXIT_RUNTIME is not set, so halting execution but not exiting the runtime or preventing further async execution (build with EXIT_RUNTIME=1, if you want a true shutdown)';
err(msg);
}
} else {
exitRuntime();
}
procExit(status);
}
function procExit(code) {
EXITSTATUS = code;
if (!keepRuntimeAlive()) {
if (Module['onExit']) Module['onExit'](code);
ABORT = true;
}
quit_(code, new ExitStatus(code));
}
if (Module['preInit']) {
if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
while (Module['preInit'].length > 0) {
Module['preInit'].pop()();
}
}
// shouldRunNow refers to calling main(), not run().
var shouldRunNow = true;
if (Module['noInitialRun']) shouldRunNow = false;
run();