Minimal sql.js-ipfs demo

├── .gitignore ├── example ├── assets │ ├── example.sqlite3 │ └── index.html └── index.ts ├── external.d.ts ├── package-lock.json ├── package.json ├── readme.md ├── src ├── db.worker.ts ├── index.ts ├── ipfs.worker.ts ├── mutex.ts └── sql.js │ ├── .gitignore │ ├── .npmignore │ ├── sql-wasm-debug.js │ ├── sql-wasm-debug.wasm │ ├── sql-wasm.js │ └── sql-wasm.wasm ├── tsconfig.json └── webpack.config.js /.gitignore: -------------------------------------------------------------------------------- 1 | node_modules 2 | dist -------------------------------------------------------------------------------- /example/assets/example.sqlite3: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/hcliff/sqlite-ipfs/b5c9b397b0396181f3867a7eeaaf790e6a4f16b1/example/assets/example.sqlite3 -------------------------------------------------------------------------------- /example/assets/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | Minimal sql.js-ipfs demo 4 | 5 |

Hello World!

-------------------------------------------------------------------------------- /example/index.ts: -------------------------------------------------------------------------------- 1 | import { SqliteComlinkMod } from "../src/db.worker"; 2 | import * as Comlink from "comlink"; 3 | import {query} from "../src/index"; 4 | 5 | // @ts-ignore we're in a module, and have access to import.meta.url 6 | const sqlJsURL = new URL("../src/sql.js/sql-wasm.wasm", import.meta.url).toString(); 7 | 8 | // note: there's no good story around webpack/typescript/webworkers 9 | // so directly target the compiled file 10 | // TODO: fix this when possible. 11 | // const dbWorkerURL = new URL("db.worker", import.meta.url); 12 | const dbWorkerURL = "db.worker.js"; 13 | 14 | // const ipfsWorkerURL = new URL("ipfs.worker", import.meta.url); 15 | const ipfsWorkerURL = "ipfs.worker.js"; 16 | 17 | async function load() { 18 | // example.sqlite3 19 | // let path = "QmQRt5BRHAeBaspyEf4KG4cY9GdSmpisRfdJTi7SvPhBeY"; 20 | // sample.sqlite3 @ 4kb page size 21 | // let path = "QmbcqJRH1rvFZtR1NBp5xqHTKz9brvdCRRMtiw6TVetwxa"; 22 | // sample.sqlite3 @ 64kb page size 23 | // let ipfsPath = "QmZwoJuBtrvSNh6n5XmKoBCVf9Ny7mEGpuWh17JbnQedrw"; 24 | // wdi.sqlite3 @ 64kb page size 25 | let ipfsPath = "Qme2jr3JG2CyZK2NJBzse7DjgZzktgbL1jxiJ73AxhuLNA"; 26 | 27 | const dbManagerWorker: Worker = new Worker(dbWorkerURL); 28 | const dbManager = Comlink.wrap(dbManagerWorker); 29 | 30 | await dbManager.dummy(); 31 | 32 | console.log("begin db worker spawn"); 33 | const { db } = await dbManager.createDbWorker( 34 | sqlJsURL, 35 | ipfsWorkerURL, 36 | ipfsPath, 37 | ); 38 | console.log("db worker created", db); 39 | 40 | const queryString1 = `select * from sqlite_master;` 41 | console.log(await query(db, queryString1)); 42 | 43 | // exec(db, `select * from data where "Country Name" LIKE "%Africa%"`); 44 | 45 | // exec(db, `select count(id) from data`); 46 | } 47 | 48 | load(); -------------------------------------------------------------------------------- /external.d.ts: -------------------------------------------------------------------------------- 1 | declare module './sql.js/sql-wasm'; 2 | 3 | declare module "json!*" { 4 | const value: any; 5 | export default value; 6 | } 7 | 8 | declare module '*.sqlite3' { 9 | const content: any; 10 | export default content; 11 | } 12 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "sqlite-ipfs", 3 | "version": "1.0.0", 4 | "description": "sqlite on ipfs", 5 | "main": "index.js", 6 | "scripts": { 7 | "build": "rm -rf dist && ./node_modules/.bin/webpack --mode=production --config webpack.config", 8 | "dev": "./node_modules/.bin/webpack serve --mode=development --config webpack.config" 9 | }, 10 | "author": "Henry Clifford", 11 | "license": "ISC", 12 | "dependencies": { 13 | "@babel/preset-typescript": "^7.16.7", 14 | "ipfs": "^0.62.0", 15 | "level-mem": "^6.0.1", 16 | "sql.js": "^1.6.2", 17 | "sql.js-httpvfs": "^0.8.11" 18 | }, 19 | "devDependencies": { 20 | "@types/sql.js": "^1.4.3", 21 | "file-loader": "^6.2.0", 22 | "ts-loader": "^9.2.6", 23 | "typescript": "^4.5.4", 24 | "webpack": "^5.66.0", 25 | "webpack-cli": "^4.9.1", 26 | "webpack-dev-server": "^4.7.3", 27 | "node-polyfill-webpack-plugin": "^1.1.4" 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /readme.md: -------------------------------------------------------------------------------- 1 | # sql.js-ipfs 2 | ## [Demo](https://k51qzi5uqu5diy09qbtg7b3ma8n0cj4l05st37rza1bdoyrm3hw0wvzypt8n0l.ipns.dweb.link/) 3 | 4 | ## Inspiration / Deps 5 | Heavily inspired and uses code from [https://github.com/phiresky/sql.js-httpvfs](sql.js-httpvfs) 6 | Impossible without [sql.js](https://sql.js.org/#/) 7 | 8 | ## Usage 9 | ### Basic 10 | 1) `npm install` 11 | 2) `npm run dev` 12 | 3) **Using https** open your browser and navigate to the url given by webpack 13 | 4) Check the console 14 | 15 | ### With your own database 16 | 1) [Install IPFS](https://flyingzumwalt.gitbooks.io/decentralized-web-primer/content/install-ipfs/lessons/download-and-install.html) 17 | 2) Add your sqlite file ```ipfs add db.sqlite3``` 18 | 3) Take the CID from the output and change ipfsPath in examples/index.ts 19 | 4) `npm run dev` 20 | 5) `Check the console` 21 | 22 | ## FAQ 23 | * **How does this work?** Your browser runs a wasm binary that contains the sqlite server & client. It reads blocks of data from a .sqlite file on ipfs and performs queries in your browser. 24 | * **Performance?** Table scans are very bad. The cross-worker communcation of [Atomics](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Atomics) introduces heavy performance penalties too. 25 | * **Writes?** Certainly possible, but not implemented currently. 26 | * **What was the hardest part of the project?** Configuring webpack 27 | * **Is this blockchain? 🚀🚀🚀** It's not, but it is technically a distributed ledger, be sure anyone you give money too can explain the difference. -------------------------------------------------------------------------------- /src/db.worker.ts: -------------------------------------------------------------------------------- 1 | 2 | import { Database } from "sql.js"; 3 | import { ReaderComlinkMod } from "./ipfs.worker"; 4 | import { lock, waitForLock } from "./mutex"; 5 | import * as Comlink from "comlink"; 6 | // @ts-ignore 7 | import initSqlJs from "./sql.js/sql-wasm"; 8 | 9 | // exported for testing 10 | export async function createLazyFile( 11 | ipfsWorkerURL: string, 12 | fs: FileSystem, 13 | ipfsPath: string, 14 | ): Promise { 15 | console.log("createLazyFile called"); 16 | 17 | console.time("ipfsWorker instantiation"); 18 | const ipfsWorker: Worker = new Worker(ipfsWorkerURL); 19 | const ipfs = Comlink.wrap(ipfsWorker); 20 | // ipfs.dummy(); 21 | await ipfs.boot(); 22 | console.timeEnd("ipfsWorker instantiation"); 23 | 24 | // @ts-ignore createFile does actually exist 25 | var node: FS.FSNode = fs.createFile("/", ipfsPath, {}, true, true); 26 | 27 | // consider making this lazy to avoid the network request at insantiation time 28 | // this is often a very long process for files recently uploaded to ipfs 29 | console.log("beginning stat"); 30 | const statResult = await ipfs.stat(ipfsPath, { 31 | // speed things up by only pulling the size 32 | size: true 33 | }); 34 | console.log(`${ipfsPath} statresult`, statResult); 35 | 36 | Object.defineProperties(node, { 37 | usedBytes: { 38 | get: function () { return statResult.size } 39 | } 40 | }); 41 | 42 | // https://emscripten.org/docs/api_reference/Filesystem-API.html#FS.read 43 | // @ts-ignore strem_ops is a property of node 44 | node.stream_ops.read = function ( 45 | _: { node: { path: string } }, 46 | buffer: Uint8Array, 47 | // The offset within buffer to store the data. 48 | offset: number, 49 | // The length of data to write in buffer. 50 | length: number, 51 | // The offset within the stream to read. By default this is the stream’s current offset. 52 | position: number 53 | ) { 54 | // console.time("stream_ops.read"); 55 | 56 | // our worker thread will write into this shared buffer 57 | const workerBuffer = new SharedArrayBuffer(length); 58 | 59 | // create a buffer large enough to hold one 32 bit integer 60 | const mu = new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT); 61 | lock(mu); 62 | 63 | const readTimeout = 10000; 64 | // note: this is behind comlink and does not happen syncronously 65 | // we cannot await on it as `stream_ops.read` is a emscripten callback 66 | // that does not support async/await 67 | // 68 | // offset here is set to 0 as we instantiate a new buffer and pass it in 69 | ipfs.read(ipfsPath, workerBuffer, 0, length, position, mu, readTimeout); 70 | 71 | // this lock cannot be aquired until the previous lock is released 72 | // by `read` completing in a worker thread 73 | // if the read takes longer than readTimeout it will have failed 74 | const wait = waitForLock(mu, readTimeout); 75 | if (wait !== "ok") { 76 | throw new Error(`read timed out after ${readTimeout/1000}s`) 77 | } 78 | 79 | const uint8 = new Uint8Array(workerBuffer); 80 | buffer.set(uint8, offset); 81 | 82 | // console.timeEnd("stream_ops.read"); 83 | 84 | return length; 85 | }; 86 | 87 | return node; 88 | } 89 | 90 | export async function createDbWorker( 91 | sqlJsURL: string, 92 | asyncReaderURL: string, 93 | path: string, 94 | ): Promise<{ db: Database }> { 95 | console.info('beginning initSqlJs'); 96 | const SQL = await initSqlJs({ 97 | locateFile: (file: string) => { 98 | // sql.js.org is the original sql.js which is missing some extenions 99 | // return `https://sql.js.org/dist/${file}`; 100 | 101 | // phiresky.github.io is the fork we need 102 | // return 'https://phiresky.github.io/blog/sql-wasm.wasm'; 103 | 104 | return sqlJsURL; 105 | } 106 | }); 107 | 108 | // SQL.FS only exists in the sql.js fork we use, and not the official typings 109 | // createLazyFile spawns a long lived worker 110 | const ipfsFile = await createLazyFile(asyncReaderURL, SQL.FS, path); 111 | console.info("lazy ipfs file", ipfsFile); 112 | 113 | // use the same filename as 114 | const db: Database = new SQL.CustomDatabase(path); 115 | 116 | // verify page size and disable cache (since we hold everything in memory anyways) 117 | const pageSizeResp = await db.exec("pragma page_size; pragma cache_size=0"); 118 | const pageSize = pageSizeResp[0].values[0][0]; 119 | console.info(`page size ${pageSize}`); 120 | 121 | return Comlink.proxy({ db }); 122 | } 123 | 124 | 125 | const mod = { 126 | createLazyFile: createLazyFile, 127 | createDbWorker: createDbWorker, 128 | dummy: function () { 129 | console.log("[dbworker]", "comlink works", Math.random()); 130 | } 131 | } 132 | export type SqliteComlinkMod = typeof mod; 133 | Comlink.expose(mod); -------------------------------------------------------------------------------- /src/index.ts: -------------------------------------------------------------------------------- 1 | export type { Database, BindParams } from "sql.js"; 2 | import { Database, BindParams, QueryExecResult } from "sql.js"; 3 | 4 | export function toObjects(res: QueryExecResult[]): T[] { 5 | return res.flatMap(r => r.values.map((v) => { 6 | const o: any = {}; 7 | for (let i = 0; i < r.columns.length; i++) { 8 | o[r.columns[i]] = v[i]; 9 | } 10 | return o as T; 11 | })); 12 | } 13 | 14 | export async function query(db: Database, query: string, params?: BindParams): Promise { 15 | console.time(query); 16 | const result = await db.exec(query, params); 17 | console.timeEnd(query); 18 | return toObjects(result); 19 | } -------------------------------------------------------------------------------- /src/ipfs.worker.ts: -------------------------------------------------------------------------------- 1 | import * as Comlink from "comlink"; 2 | import { StatResult, StatOptions } from 'ipfs-core-types/src/files'; 3 | import { create, IPFS } from "ipfs-core"; 4 | import { Mutex, unlock } from "./mutex"; 5 | import { createRepo } from "ipfs-repo"; 6 | import { LevelDatastore } from "datastore-level"; 7 | import { BlockstoreDatastoreAdapter } from "blockstore-datastore-adapter"; 8 | // @ts-ignore 9 | import * as memstore from "level-mem"; 10 | 11 | let ipfsConnection: IPFS; 12 | 13 | // https://github.com/ipfs-examples/js-ipfs-examples/blob/master/examples/custom-ipfs-repo/index.js 14 | const codecs = [ 15 | require('@ipld/dag-pb'), 16 | require('@ipld/dag-cbor'), 17 | require('multiformats/codecs/raw') 18 | ].reduce((acc, curr) => { 19 | acc[curr.name] = curr 20 | acc[curr.code] = curr 21 | 22 | return acc 23 | }, {}) 24 | 25 | // Support dag-pb and dag-cbor at a minimum 26 | const loadCodec = (nameOrCode: any) => { 27 | if (codecs[nameOrCode]) { 28 | return codecs[nameOrCode] 29 | } 30 | 31 | throw new Error(`Could not load codec for ${nameOrCode}`) 32 | } 33 | 34 | const boot = async function () { 35 | const repoPath = String(Math.random() + Date.now()) 36 | 37 | const repo = createRepo(repoPath, loadCodec, { 38 | root: new LevelDatastore(repoPath, { 39 | prefix: '', 40 | version: 2, 41 | // note: the default repo uses LevelDatastore which is _incredibly_ slow 42 | // 30ms per read slow. Use an in-memory datastore instead. 43 | db: memstore 44 | }), 45 | blocks: new BlockstoreDatastoreAdapter(new LevelDatastore(`${repoPath}/blocks`, { 46 | prefix: '', 47 | version: 2, 48 | db: memstore 49 | })), 50 | datastore: new LevelDatastore(`${repoPath}/datastore`, { 51 | prefix: '', 52 | version: 2, 53 | db: memstore 54 | }), 55 | keys: new LevelDatastore(`${repoPath}/keys`, { 56 | prefix: '', 57 | version: 2, 58 | db: memstore 59 | }), 60 | pins: new LevelDatastore(`${repoPath}/pins`, { 61 | prefix: '', 62 | version: 2, 63 | db: memstore 64 | }) 65 | }); 66 | 67 | ipfsConnection = await create({ 68 | repo: repo, 69 | init: { algorithm: 'Ed25519' }, 70 | }); 71 | } 72 | 73 | // reads the required bytes from ipfs into a buffer and unlocks the passed in mutex 74 | const read = async function ( 75 | ipfsPath: string, 76 | buffer: SharedArrayBuffer, 77 | offset: number, 78 | length: number, 79 | position: number, 80 | // the mutex to unlock upon the operation completing 81 | mu: Mutex, 82 | timeout: number, 83 | ) { 84 | // console.log("read ipfs", ipfsPath, offset, length, position); 85 | 86 | const uint8 = new Uint8Array(buffer); 87 | 88 | // const timeLabel = `ipfs reading ${length} bytes` 89 | // console.time(timeLabel); 90 | let i = 0; 91 | for await (const chunk of ipfsConnection.files.read("/ipfs/" + ipfsPath, { 92 | offset: position, 93 | length: length, 94 | timeout: timeout 95 | })) { 96 | uint8.set(chunk, offset + i); 97 | i += chunk.length; 98 | } 99 | // console.timeEnd(timeLabel); 100 | 101 | unlock(mu); 102 | } 103 | 104 | const mod = { 105 | read: read, 106 | boot: boot, 107 | dummy: function () { 108 | console.log("[asyncreader]", "comlink works", Math.random()); 109 | }, 110 | stat: async function (path: string, options?: StatOptions): Promise { 111 | // note, stat doesn't support `withLocal` currently 112 | // there's no way to understand how much local storage is used 113 | // https://github.com/ipfs/js-ipfs/issues/2806 114 | return ipfsConnection.files.stat("/ipfs/" + path, options) 115 | } 116 | } 117 | export type ReaderComlinkMod = typeof mod; 118 | Comlink.expose(mod); -------------------------------------------------------------------------------- /src/mutex.ts: -------------------------------------------------------------------------------- 1 | export type Mutex = SharedArrayBuffer 2 | 3 | const unlocked = 0 4 | const locked = 1 5 | 6 | export function unlock(m: Mutex) { 7 | const int32 = new Int32Array(m); 8 | const oldValue = Atomics.compareExchange(int32, 0, locked, unlocked); 9 | // if the mutex was locked then notify subscribers 10 | if(oldValue !== locked){ 11 | throw new Error("already unlocked") 12 | } 13 | Atomics.notify(int32, 0); 14 | } 15 | 16 | // TODO: timeout doesn't account for retries 17 | export function lock(m: Mutex, timeout?: number): "ok" | "not-equal" | "timed-out" { 18 | const int32 = new Int32Array(m); 19 | for(;;){ 20 | // sleep until the index is _not_ locked 21 | const wait = Atomics.wait(int32, 0, locked, timeout); 22 | const oldValue = Atomics.compareExchange(int32, 0, unlocked, locked); 23 | // if someone else aquired the lock, retry the operation 24 | if(oldValue === locked){ 25 | continue; 26 | } 27 | return wait; 28 | } 29 | } 30 | 31 | export function waitForLock(m: Mutex, timeout?: number): "ok" | "not-equal" | "timed-out" { 32 | const int32 = new Int32Array(m); 33 | // sleep until the index is _not_ locked 34 | return Atomics.wait(int32, 0, locked, timeout); 35 | } -------------------------------------------------------------------------------- /src/sql.js/.gitignore: -------------------------------------------------------------------------------- 1 | # Ignore everything in this directory 2 | * 3 | # Except this file 4 | !.gitignore 5 | !.npmignore 6 | !sql-wasm* -------------------------------------------------------------------------------- /src/sql.js/.npmignore: -------------------------------------------------------------------------------- 1 | .gitignore -------------------------------------------------------------------------------- /src/sql.js/sql-wasm-debug.wasm: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/hcliff/sqlite-ipfs/b5c9b397b0396181f3867a7eeaaf790e6a4f16b1/src/sql.js/sql-wasm-debug.wasm -------------------------------------------------------------------------------- /src/sql.js/sql-wasm.js: -------------------------------------------------------------------------------- 1 | 2 | // We are modularizing this manually because the current modularize setting in Emscripten has some issues: 3 | // https://github.com/kripken/emscripten/issues/5820 4 | // In addition, When you use emcc's modularization, it still expects to export a global object called `Module`, 5 | // which is able to be used/called before the WASM is loaded. 6 | // The modularization below exports a promise that loads and resolves to the actual sql.js module. 7 | // That way, this module can't be used before the WASM is finished loading. 8 | 9 | // We are going to define a function that a user will call to start loading initializing our Sql.js library 10 | // However, that function might be called multiple times, and on subsequent calls, we don't actually want it to instantiate a new instance of the Module 11 | // Instead, we want to return the previously loaded module 12 | 13 | // TODO: Make this not declare a global if used in the browser 14 | var initSqlJsPromise = undefined; 15 | 16 | var initSqlJs = function (moduleConfig) { 17 | 18 | if (initSqlJsPromise){ 19 | return initSqlJsPromise; 20 | } 21 | // If we're here, we've never called this function before 22 | initSqlJsPromise = new Promise(function (resolveModule, reject) { 23 | 24 | // We are modularizing this manually because the current modularize setting in Emscripten has some issues: 25 | // https://github.com/kripken/emscripten/issues/5820 26 | 27 | // The way to affect the loading of emcc compiled modules is to create a variable called `Module` and add 28 | // properties to it, like `preRun`, `postRun`, etc 29 | // We are using that to get notified when the WASM has finished loading. 30 | // Only then will we return our promise 31 | 32 | // If they passed in a moduleConfig object, use that 33 | // Otherwise, initialize Module to the empty object 34 | var Module = typeof moduleConfig !== 'undefined' ? moduleConfig : {}; 35 | 36 | // EMCC only allows for a single onAbort function (not an array of functions) 37 | // So if the user defined their own onAbort function, we remember it and call it 38 | var originalOnAbortFunction = Module['onAbort']; 39 | Module['onAbort'] = function (errorThatCausedAbort) { 40 | reject(new Error(errorThatCausedAbort)); 41 | if (originalOnAbortFunction){ 42 | originalOnAbortFunction(errorThatCausedAbort); 43 | } 44 | }; 45 | 46 | Module['postRun'] = Module['postRun'] || []; 47 | Module['postRun'].push(function () { 48 | // When Emscripted calls postRun, this promise resolves with the built Module 49 | resolveModule(Module); 50 | }); 51 | 52 | // There is a section of code in the emcc-generated code below that looks like this: 53 | // (Note that this is lowercase `module`) 54 | // if (typeof module !== 'undefined') { 55 | // module['exports'] = Module; 56 | // } 57 | // When that runs, it's going to overwrite our own modularization export efforts in shell-post.js! 58 | // The only way to tell emcc not to emit it is to pass the MODULARIZE=1 or MODULARIZE_INSTANCE=1 flags, 59 | // but that carries with it additional unnecessary baggage/bugs we don't want either. 60 | // So, we have three options: 61 | // 1) We undefine `module` 62 | // 2) We remember what `module['exports']` was at the beginning of this function and we restore it later 63 | // 3) We write a script to remove those lines of code as part of the Make process. 64 | // 65 | // Since those are the only lines of code that care about module, we will undefine it. It's the most straightforward 66 | // of the options, and has the side effect of reducing emcc's efforts to modify the module if its output were to change in the future. 67 | // That's a nice side effect since we're handling the modularization efforts ourselves 68 | module = undefined; 69 | 70 | // The emcc-generated code and shell-post.js code goes below, 71 | // meaning that all of it runs inside of this promise. If anything throws an exception, our promise will abort 72 | var Module=typeof Module!=="undefined"?Module:{};var objAssign=Object.assign;null;Module["onRuntimeInitialized"]=function onRuntimeInitialized(){var apiTemp=stackAlloc(4);var cwrap=Module["cwrap"];var NULL=0;var SQLITE_OK=0;var SQLITE_ROW=100;var SQLITE_DONE=101;var SQLITE_INTEGER=1;var SQLITE_FLOAT=2;var SQLITE_TEXT=3;var SQLITE_BLOB=4;var SQLITE_UTF8=1;var sqlite3_open=cwrap("sqlite3_open","number",["string","number"]);var sqlite3_open_v2=cwrap("sqlite3_open_v2","number",["string","number","number","string"]);var sqlite3_close_v2=cwrap("sqlite3_close_v2","number",["number"]);var sqlite3_exec=cwrap("sqlite3_exec","number",["number","string","number","number","number"]);var sqlite3_changes=cwrap("sqlite3_changes","number",["number"]);var sqlite3_prepare_v2=cwrap("sqlite3_prepare_v2","number",["number","string","number","number","number"]);var sqlite3_sql=cwrap("sqlite3_sql","string",["number"]);var sqlite3_normalized_sql=cwrap("sqlite3_normalized_sql","string",["number"]);var sqlite3_prepare_v2_sqlptr=cwrap("sqlite3_prepare_v2","number",["number","number","number","number","number"]);var sqlite3_bind_text=cwrap("sqlite3_bind_text","number",["number","number","number","number","number"]);var sqlite3_bind_blob=cwrap("sqlite3_bind_blob","number",["number","number","number","number","number"]);var sqlite3_bind_double=cwrap("sqlite3_bind_double","number",["number","number","number"]);var sqlite3_bind_int=cwrap("sqlite3_bind_int","number",["number","number","number"]);var sqlite3_bind_parameter_index=cwrap("sqlite3_bind_parameter_index","number",["number","string"]);var sqlite3_step=cwrap("sqlite3_step","number",["number"]);var sqlite3_errmsg=cwrap("sqlite3_errmsg","string",["number"]);var sqlite3_column_count=cwrap("sqlite3_column_count","number",["number"]);var sqlite3_data_count=cwrap("sqlite3_data_count","number",["number"]);var sqlite3_column_double=cwrap("sqlite3_column_double","number",["number","number"]);var sqlite3_column_text=cwrap("sqlite3_column_text","string",["number","number"]);var sqlite3_column_blob=cwrap("sqlite3_column_blob","number",["number","number"]);var sqlite3_column_bytes=cwrap("sqlite3_column_bytes","number",["number","number"]);var sqlite3_column_type=cwrap("sqlite3_column_type","number",["number","number"]);var sqlite3_column_name=cwrap("sqlite3_column_name","string",["number","number"]);var sqlite3_reset=cwrap("sqlite3_reset","number",["number"]);var sqlite3_clear_bindings=cwrap("sqlite3_clear_bindings","number",["number"]);var sqlite3_finalize=cwrap("sqlite3_finalize","number",["number"]);var sqlite3_create_module_v2=cwrap("sqlite3_create_module_v2","number",["number","string","number","number","number"]);var sqlite3_create_function_v2=cwrap("sqlite3_create_function_v2","number",["number","string","number","number","number","number","number","number","number"]);var sqlite3_value_type=cwrap("sqlite3_value_type","number",["number"]);var sqlite3_value_bytes=cwrap("sqlite3_value_bytes","number",["number"]);var sqlite3_value_text=cwrap("sqlite3_value_text","string",["number"]);var sqlite3_value_blob=cwrap("sqlite3_value_blob","number",["number"]);var sqlite3_value_double=cwrap("sqlite3_value_double","number",["number"]);var sqlite3_result_double=cwrap("sqlite3_result_double","",["number","number"]);var sqlite3_result_null=cwrap("sqlite3_result_null","",["number"]);var sqlite3_result_text=cwrap("sqlite3_result_text","",["number","string","number","number"]);var sqlite3_result_blob=cwrap("sqlite3_result_blob","",["number","number","number","number"]);var sqlite3_result_int=cwrap("sqlite3_result_int","",["number","number"]);var sqlite3_result_error=cwrap("sqlite3_result_error","",["number","string","number"]);var sqlite3_malloc=cwrap("sqlite3_malloc","number",["number"]);Module["sqlite3_malloc"]=sqlite3_malloc;var registerExtensionFunctions=cwrap("RegisterExtensionFunctions","number",["number"]);function Statement(stmt1,db){this.stmt=stmt1;this.db=db;this.pos=1;this.allocatedmem=[]}Statement.prototype["bind"]=function bind(values){if(!this.stmt){throw"Statement closed"}this["reset"]();if(Array.isArray(values))return this.bindFromArray(values);if(values!=null&&typeof values==="object"){return this.bindFromObject(values)}return true};Statement.prototype["bind_"]=Statement.prototype.bind;Statement.prototype["step"]=function step(){if(!this.stmt){throw"Statement closed"}this.pos=1;var ret=sqlite3_step(this.stmt);switch(ret){case SQLITE_ROW:return true;case SQLITE_DONE:return false;default:throw this.db.handleError(ret)}};Statement.prototype.getNumber=function getNumber(pos){if(pos==null){pos=this.pos;this.pos+=1}return sqlite3_column_double(this.stmt,pos)};Statement.prototype.getString=function getString(pos){if(pos==null){pos=this.pos;this.pos+=1}return sqlite3_column_text(this.stmt,pos)};Statement.prototype.getBlob=function getBlob(pos){if(pos==null){pos=this.pos;this.pos+=1}var size=sqlite3_column_bytes(this.stmt,pos);var ptr=sqlite3_column_blob(this.stmt,pos);var result=new Uint8Array(size);for(var i=0;i>>0);if(data!=null){FS.createDataFile("/",this.filename,data,true,true)}const ret=sqlite3_open(this.filename,apiTemp);this.db=getValue(apiTemp,"i32");this.handleError(ret);registerExtensionFunctions(this.db);this.statements={};this.functions={}}function CustomDatabase(filename){this.filename=filename;const ret=sqlite3_open(this.filename,apiTemp);this.db=getValue(apiTemp,"i32");this.handleError(ret);registerExtensionFunctions(this.db);this.statements={};this.functions={}}Database.prototype["run"]=function run(sql,params){if(!this.db){throw"Database closed"}if(params){var stmt=this["prepare"](sql,params);try{stmt["step"]()}finally{stmt["free"]()}}else{this.handleError(sqlite3_exec(this.db,sql,0,0,apiTemp))}return this};Database.prototype["exec"]=function exec(sql,params){if(!this.db){throw"Database closed"}var stack=stackSave();var stmt=null;try{var nextSqlPtr=allocateUTF8OnStack(sql);var pzTail=stackAlloc(4);var results=[];while(getValue(nextSqlPtr,"i8")!==NULL){setValue(apiTemp,0,"i32");setValue(pzTail,0,"i32");this.handleError(sqlite3_prepare_v2_sqlptr(this.db,nextSqlPtr,-1,apiTemp,pzTail));var pStmt=getValue(apiTemp,"i32");nextSqlPtr=getValue(pzTail,"i32");if(pStmt!==NULL){var curresult=null;stmt=new Statement(pStmt,this);if(params!=null){stmt.bind(params)}while(stmt["step"]()){if(curresult===null){curresult={columns:stmt["getColumnNames"](),values:[]};results.push(curresult)}curresult["values"].push(stmt["get"]())}stmt["free"]()}}return results}catch(errCaught){if(stmt)stmt["free"]();throw errCaught}finally{stackRestore(stack)}};Database.prototype["each"]=function each(sql,params,callback,done){var stmt;if(typeof params==="function"){done=callback;callback=params;params=undefined}stmt=this["prepare"](sql,params);try{while(stmt["step"]()){callback(stmt["getAsObject"]())}}finally{stmt["free"]()}if(typeof done==="function"){return done()}return undefined};Database.prototype["prepare"]=function prepare(sql,params){setValue(apiTemp,0,"i32");this.handleError(sqlite3_prepare_v2(this.db,sql,-1,apiTemp,NULL));var pStmt=getValue(apiTemp,"i32");if(pStmt===NULL){throw"Nothing to prepare"}var stmt=new Statement(pStmt,this);if(params!=null){stmt.bind(params)}this.statements[pStmt]=stmt;return stmt};Database.prototype["iterateStatements"]=function iterateStatements(sql){return new StatementIterator(sql,this)};Database.prototype["export"]=function exportDatabase(){Object.values(this.statements).forEach(function each(stmt){stmt["free"]()});Object.values(this.functions).forEach(removeFunction);this.functions={};this.handleError(sqlite3_close_v2(this.db));var binaryDb=FS.readFile(this.filename,{encoding:"binary"});this.handleError(sqlite3_open(this.filename,apiTemp));this.db=getValue(apiTemp,"i32");return binaryDb};Database.prototype["close"]=function close(){if(this.db===null){return}Object.values(this.statements).forEach(function each(stmt){stmt["free"]()});Object.values(this.functions).forEach(removeFunction);this.functions={};this.handleError(sqlite3_close_v2(this.db));FS.unlink("/"+this.filename);this.db=null};Database.prototype["handleError"]=function handleError(returnCode){var errmsg;if(returnCode===SQLITE_OK){return null}errmsg=sqlite3_errmsg(this.db);throw new Error("SQLite: "+(errmsg||"Code "+returnCode))};Database.prototype["getRowsModified"]=function getRowsModified(){return sqlite3_changes(this.db)};Database.prototype["create_function"]=function create_function(name,func){function wrapped_func(cx,argc,argv){var result;var args=[];for(var i=0;i{throw toThrow};var ENVIRONMENT_IS_WEB=typeof window==="object";var ENVIRONMENT_IS_WORKER=typeof importScripts==="function";var ENVIRONMENT_IS_NODE=typeof process==="object"&&typeof process.versions==="object"&&typeof process.versions.node==="string";var scriptDirectory="";function locateFile(path){if(Module["locateFile"]){return Module["locateFile"](path,scriptDirectory)}return scriptDirectory+path}var read_,readAsync,readBinary,setWindowTitle;function logExceptionOnExit(e){if(e instanceof ExitStatus)return;let toLog=e;err("exiting due to exception: "+toLog)}var fs;var nodePath;var requireNodeFS;if(ENVIRONMENT_IS_NODE){if(ENVIRONMENT_IS_WORKER){scriptDirectory=require("path").dirname(scriptDirectory)+"/"}else{scriptDirectory=__dirname+"/"}requireNodeFS=function(){if(!nodePath){fs=require("fs");nodePath=require("path")}};read_=function shell_read(filename,binary){requireNodeFS();filename=nodePath["normalize"](filename);return fs.readFileSync(filename,binary?null:"utf8")};readBinary=function readBinary(filename){var ret=read_(filename,true);if(!ret.buffer){ret=new Uint8Array(ret)}return ret};readAsync=function readAsync(filename,onload,onerror){requireNodeFS();filename=nodePath["normalize"](filename);fs.readFile(filename,function(err,data){if(err)onerror(err);else onload(data.buffer)})};if(process["argv"].length>1){thisProgram=process["argv"][1].replace(/\\/g,"/")}arguments_=process["argv"].slice(2);if(typeof module!=="undefined"){module["exports"]=Module}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_WEB||ENVIRONMENT_IS_WORKER){if(ENVIRONMENT_IS_WORKER){scriptDirectory=self.location.href}else if(typeof document!=="undefined"&&document.currentScript){scriptDirectory=document.currentScript.src}if(scriptDirectory.indexOf("blob:")!==0){scriptDirectory=scriptDirectory.substr(0,scriptDirectory.replace(/[?#].*/,"").lastIndexOf("/")+1)}else{scriptDirectory=""}{read_=function(url){var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.send(null);return xhr.responseText};if(ENVIRONMENT_IS_WORKER){readBinary=function(url){var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.responseType="arraybuffer";xhr.send(null);return new Uint8Array(xhr.response)}}readAsync=function(url,onload,onerror){var xhr=new XMLHttpRequest;xhr.open("GET",url,true);xhr.responseType="arraybuffer";xhr.onload=function(){if(xhr.status==200||xhr.status==0&&xhr.response){onload(xhr.response);return}onerror()};xhr.onerror=onerror;xhr.send(null)}}setWindowTitle=(title=>document.title=title)}else{}var out=Module["print"]||console.log.bind(console);var err=Module["printErr"]||console.warn.bind(console);objAssign(Module,moduleOverrides);moduleOverrides=null;if(Module["arguments"])arguments_=Module["arguments"];if(Module["thisProgram"])thisProgram=Module["thisProgram"];if(Module["quit"])quit_=Module["quit"];function convertJsFunctionToWasm(func,sig){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>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?tempDouble>0?(Math.min(+Math.floor(tempDouble/4294967296),4294967295)|0)>>>0:~~+Math.ceil((tempDouble-+(~~tempDouble>>>0))/4294967296)>>>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)}}function getValue(ptr,type,noSafe){type=type||"i8";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}var wasmMemory;var ABORT=false;var EXITSTATUS;function assert(condition,text){if(!condition){abort(text)}}function getCFunc(ident){var func=Module["_"+ident];return func}function ccall(ident,returnType,argTypes,args,opts){var toC={"string":function(str){var ret=0;if(str!==null&&str!==undefined&&str!==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;if(args){for(var i=0;i=endIdx))++endPtr;if(endPtr-idx>16&&heap.subarray&&UTF8Decoder){return UTF8Decoder.decode(heap.subarray(idx,endPtr))}else{var str="";while(idx>10,56320|ch&1023)}}}return str}function UTF8ToString(ptr,maxBytesToRead){return ptr?UTF8ArrayToString(HEAPU8,ptr,maxBytesToRead):""}function stringToUTF8Array(str,heap,outIdx,maxBytesToWrite){if(!(maxBytesToWrite>0))return 0;var startIdx=outIdx;var endIdx=outIdx+maxBytesToWrite-1;for(var i=0;i=55296&&u<=57343){var u1=str.charCodeAt(++i);u=65536+((u&1023)<<10)|u1&1023}if(u<=127){if(outIdx>=endIdx)break;heap[outIdx++]=u}else if(u<=2047){if(outIdx+1>=endIdx)break;heap[outIdx++]=192|u>>6;heap[outIdx++]=128|u&63}else if(u<=65535){if(outIdx+2>=endIdx)break;heap[outIdx++]=224|u>>12;heap[outIdx++]=128|u>>6&63;heap[outIdx++]=128|u&63}else{if(outIdx+3>=endIdx)break;heap[outIdx++]=240|u>>18;heap[outIdx++]=128|u>>12&63;heap[outIdx++]=128|u>>6&63;heap[outIdx++]=128|u&63}}heap[outIdx]=0;return outIdx-startIdx}function stringToUTF8(str,outPtr,maxBytesToWrite){return stringToUTF8Array(str,HEAPU8,outPtr,maxBytesToWrite)}function lengthBytesUTF8(str){var len=0;for(var i=0;i=55296&&u<=57343)u=65536+((u&1023)<<10)|str.charCodeAt(++i)&1023;if(u<=127)++len;else if(u<=2047)len+=2;else if(u<=65535)len+=3;else len+=4}return len}function allocateUTF8(str){var size=lengthBytesUTF8(str)+1;var ret=_malloc(size);if(ret)stringToUTF8Array(str,HEAP8,ret,size);return ret}function allocateUTF8OnStack(str){var size=lengthBytesUTF8(str)+1;var ret=stackAlloc(size);stringToUTF8Array(str,HEAP8,ret,size);return ret}function writeArrayToMemory(array,buffer){HEAP8.set(array,buffer)}function writeAsciiToMemory(str,buffer,dontAddNull){for(var i=0;i>0]=str.charCodeAt(i)}if(!dontAddNull)HEAP8[buffer>>0]=0}function alignUp(x,multiple){if(x%multiple>0){x+=multiple-x%multiple}return x}var buffer,HEAP8,HEAPU8,HEAP16,HEAPU16,HEAP32,HEAPU32,HEAPF32,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 INITIAL_MEMORY=Module["INITIAL_MEMORY"]||16777216;var wasmTable;var __ATPRERUN__=[];var __ATINIT__=[];var __ATPOSTRUN__=[];var runtimeInitialized=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(){runtimeInitialized=true;if(!Module["noFSInit"]&&!FS.init.initialized)FS.init();FS.ignorePermissions=false;TTY.init();callRuntimeCallbacks(__ATINIT__)}function postRun(){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 addOnPostRun(cb){__ATPOSTRUN__.unshift(cb)}var runDependencies=0;var runDependencyWatcher=null;var dependenciesFulfilled=null;function getUniqueRunDependency(id){return id}function addRunDependency(id){runDependencies++;if(Module["monitorRunDependencies"]){Module["monitorRunDependencies"](runDependencies)}}function removeRunDependency(id){runDependencies--;if(Module["monitorRunDependencies"]){Module["monitorRunDependencies"](runDependencies)}if(runDependencies==0){if(runDependencyWatcher!==null){clearInterval(runDependencyWatcher);runDependencyWatcher=null}if(dependenciesFulfilled){var callback=dependenciesFulfilled;dependenciesFulfilled=null;callback()}}}Module["preloadedImages"]={};Module["preloadedAudios"]={};function abort(what){{if(Module["onAbort"]){Module["onAbort"](what)}}what="Aborted("+what+")";err(what);ABORT=true;EXITSTATUS=1;what+=". Build with -s ASSERTIONS=1 for more info.";var e=new WebAssembly.RuntimeError(what);throw e}var dataURIPrefix="data:application/octet-stream;base64,";function isDataURI(filename){return filename.startsWith(dataURIPrefix)}function isFileURI(filename){return filename.startsWith("file://")}var wasmBinaryFile;wasmBinaryFile="sql-wasm.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(!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){return new Promise(function(resolve,reject){readAsync(wasmBinaryFile,function(response){resolve(new Uint8Array(response))},reject)})}}}return Promise.resolve().then(function(){return getBinary(wasmBinaryFile)})}function createWasm(){var info={"a":asmLibraryArg};function receiveInstance(instance,module){var exports=instance.exports;Module["asm"]=exports;wasmMemory=Module["asm"]["L"];updateGlobalBufferAndViews(wasmMemory.buffer);wasmTable=Module["asm"]["Fa"];addOnInit(Module["asm"]["M"]);removeRunDependency("wasm-instantiate")}addRunDependency("wasm-instantiate");function receiveInstantiationResult(result){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);abort(reason)})}function instantiateAsync(){if(!wasmBinary&&typeof WebAssembly.instantiateStreaming==="function"&&!isDataURI(wasmBinaryFile)&&!isFileURI(wasmBinaryFile)&&typeof fetch==="function"){return fetch(wasmBinaryFile,{credentials:"same-origin"}).then(function(response){var result=WebAssembly.instantiateStreaming(response,info);return result.then(receiveInstantiationResult,function(reason){err("wasm streaming compile failed: "+reason);err("falling back to ArrayBuffer instantiation");return instantiateArrayBuffer(receiveInstantiationResult)})})}else{return instantiateArrayBuffer(receiveInstantiationResult)}}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{}}var tempDouble;var tempI64;function callRuntimeCallbacks(callbacks){while(callbacks.length>0){var callback=callbacks.shift();if(typeof callback=="function"){callback(Module);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 demangle(func){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)}return func}function jsStackTrace(){var error=new Error;if(!error.stack){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 ___assert_fail(condition,filename,line,func){abort("Assertion failed: "+UTF8ToString(condition)+", at: "+[filename?UTF8ToString(filename):"unknown filename",line,func?UTF8ToString(func):"unknown function"])}function _tzset_impl(){var currentYear=(new Date).getFullYear();var winter=new Date(currentYear,0,1);var summer=new Date(currentYear,6,1);var winterOffset=winter.getTimezoneOffset();var summerOffset=summer.getTimezoneOffset();var stdTimezoneOffset=Math.max(winterOffset,summerOffset);HEAP32[__get_timezone()>>2]=stdTimezoneOffset*60;HEAP32[__get_daylight()>>2]=Number(winterOffset!=summerOffset);function extractZone(date){var match=date.toTimeString().match(/$([A-Za-z ]+)$$/);return match?match[1]:"GMT"}var winterName=extractZone(winter);var summerName=extractZone(summer);var winterNamePtr=allocateUTF8(winterName);var summerNamePtr=allocateUTF8(summerName);if(summerOffset>2]=winterNamePtr;HEAP32[__get_tzname()+4>>2]=summerNamePtr}else{HEAP32[__get_tzname()>>2]=summerNamePtr;HEAP32[__get_tzname()+4>>2]=winterNamePtr}}function _tzset(){if(_tzset.called)return;_tzset.called=true;_tzset_impl()}function _localtime_r(time,tmPtr){_tzset();var date=new Date(HEAP32[time>>2]*1e3);HEAP32[tmPtr>>2]=date.getSeconds();HEAP32[tmPtr+4>>2]=date.getMinutes();HEAP32[tmPtr+8>>2]=date.getHours();HEAP32[tmPtr+12>>2]=date.getDate();HEAP32[tmPtr+16>>2]=date.getMonth();HEAP32[tmPtr+20>>2]=date.getFullYear()-1900;HEAP32[tmPtr+24>>2]=date.getDay();var start=new Date(date.getFullYear(),0,1);var yday=(date.getTime()-start.getTime())/(1e3*60*60*24)|0;HEAP32[tmPtr+28>>2]=yday;HEAP32[tmPtr+36>>2]=-(date.getTimezoneOffset()*60);var summerOffset=new Date(date.getFullYear(),6,1).getTimezoneOffset();var winterOffset=start.getTimezoneOffset();var dst=(summerOffset!=winterOffset&&date.getTimezoneOffset()==Math.min(winterOffset,summerOffset))|0;HEAP32[tmPtr+32>>2]=dst;var zonePtr=HEAP32[__get_tzname()+(dst?4:0)>>2];HEAP32[tmPtr+40>>2]=zonePtr;return tmPtr}function ___localtime_r(a0,a1){return _localtime_r(a0,a1)}var PATH={splitPath:function(filename){var splitPathRe=/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;return splitPathRe.exec(filename).slice(1)},normalizeArray:function(parts,allowAboveRoot){var up=0;for(var i=parts.length-1;i>=0;i--){var last=parts[i];if(last==="."){parts.splice(i,1)}else if(last===".."){parts.splice(i,1);up++}else if(up){parts.splice(i,1);up--}}if(allowAboveRoot){for(;up;up--){parts.unshift("..")}}return parts},normalize:function(path){var isAbsolute=path.charAt(0)==="/",trailingSlash=path.substr(-1)==="/";path=PATH.normalizeArray(path.split("/").filter(function(p){return!!p}),!isAbsolute).join("/");if(!path&&!isAbsolute){path="."}if(path&&trailingSlash){path+="/"}return(isAbsolute?"/":"")+path},dirname:function(path){var result=PATH.splitPath(path),root=result[0],dir=result[1];if(!root&&!dir){return"."}if(dir){dir=dir.substr(0,dir.length-1)}return root+dir},basename:function(path){if(path==="/")return"/";path=PATH.normalize(path);path=path.replace(/\/$/,"");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"){var randomBuffer=new Uint8Array(1);return function(){crypto.getRandomValues(randomBuffer);return randomBuffer[0]}}else if(ENVIRONMENT_IS_NODE){try{var crypto_module=require("crypto");return function(){return crypto_module["randomBytes"](1)[0]}}catch(e){}}return function(){abort("randomDevice")}}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();if(typeof path!=="string"){throw new TypeError("Arguments to path.resolve must be strings")}else if(!path){return""}resolvedPath=path+"/"+resolvedPath;resolvedAbsolute=path.charAt(0)==="/"}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=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;i0){result=buf.slice(0,bytesRead).toString("utf-8")}else{result=null}}else if(typeof window!="undefined"&&typeof window.prompt=="function"){result=window.prompt("Input: ");if(result!==null){result+="\n"}}else if(typeof readline=="function"){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)}},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){return Math.ceil(size/alignment)*alignment}function mmapAlloc(size){size=alignMemory(size,65536);var ptr=_memalign(65536,size);if(!ptr)return 0;zeroMemory(ptr,size);return ptr}var MEMFS={ops_table:null,mount:function(mount){return MEMFS.createNode(null,"/",16384|511,0)},createNode:function(parent,name,mode,dev){if(FS.isBlkdev(mode)||FS.isFIFO(mode)){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;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();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);return new Uint8Array(node.contents)},expandFileStorage:function(node,newCapacity){var prevCapacity=node.contents?node.contents.length:0;if(prevCapacity>=newCapacity)return;var CAPACITY_DOUBLING_MAX=1024*1024;newCapacity=Math.max(newCapacity,prevCapacity*(prevCapacity>>0);if(prevCapacity!=0)newCapacity=Math.max(newCapacity,256);var oldContents=node.contents;node.contents=new Uint8Array(newCapacity);if(node.usedBytes>0)node.contents.set(oldContents.subarray(0,node.usedBytes),0)},resizeFileStorage:function(node,newSize){if(node.usedBytes==newSize)return;if(newSize==0){node.contents=null;node.usedBytes=0}else{var oldContents=node.contents;node.contents=new Uint8Array(newSize);if(oldContents){node.contents.set(oldContents.subarray(0,Math.min(newSize,node.usedBytes)))}node.usedBytes=newSize}},node_ops:{getattr:function(node){var attr={};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);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(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)}}}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|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);if(size>8&&contents.subarray){buffer.set(contents.subarray(position,position+size),offset)}else{for(var i=0;i0||position+length8){throw new FS.ErrnoError(32)}var parts=PATH.normalizeArray(path.split("/").filter(function(p){return!!p}),false);var current=FS.root;var current_path="/";for(var i=0;i40){throw new FS.ErrnoError(32)}}}}return{path:current_path,node:current}},getPath:function(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:function(parentid,name){var hash=0;for(var i=0;i>>0)%FS.nameTable.length},hashAddNode:function(node){var hash=FS.hashName(node.parent.id,node.name);node.name_next=FS.nameTable[hash];FS.nameTable[hash]=node},hashRemoveNode:function(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:function(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}}return FS.lookup(parent,name)},createNode:function(parent,name,mode,rdev){var node=new FS.FSNode(parent,name,mode,rdev);FS.hashAddNode(node);return node},destroyNode:function(node){FS.hashRemoveNode(node)},isRoot:function(node){return node===node.parent},isMountpoint:function(node){return!!node.mounted},isFile:function(mode){return(mode&61440)===32768},isDir:function(mode){return(mode&61440)===16384},isLink:function(mode){return(mode&61440)===40960},isChrdev:function(mode){return(mode&61440)===8192},isBlkdev:function(mode){return(mode&61440)===24576},isFIFO:function(mode){return(mode&61440)===4096},isSocket:function(mode){return(mode&49152)===49152},flagModes:{"r":0,"r+":2,"w":577,"w+":578,"a":1089,"a+":1090},modeStringToFlags:function(str){var flags=FS.flagModes[str];if(typeof flags==="undefined"){throw new Error("Unknown file open mode: "+str)}return flags},flagsToPermissionString:function(flag){var perms=["r","w","rw"][flag&3];if(flag&512){perms+="w"}return perms},nodePermissions:function(node,perms){if(FS.ignorePermissions){return 0}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:function(dir){var errCode=FS.nodePermissions(dir,"x");if(errCode)return errCode;if(!dir.node_ops.lookup)return 2;return 0},mayCreate:function(dir,name){try{var node=FS.lookupNode(dir,name);return 20}catch(e){}return FS.nodePermissions(dir,"wx")},mayDelete:function(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:function(node,flags){if(!node){return 44}if(FS.isLink(node.mode)){return 32}else if(FS.isDir(node.mode)){if(FS.flagsToPermissionString(flags)!=="r"||flags&512){return 31}}return FS.nodePermissions(node,FS.flagsToPermissionString(flags))},MAX_OPEN_FDS:4096,nextfd:function(fd_start,fd_end){fd_start=fd_start||0;fd_end=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:function(fd){return FS.streams[fd]},createStream:function(stream,fd_start,fd_end){if(!FS.FSStream){FS.FSStream=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}}}}var newStream=new FS.FSStream;for(var p in stream){newStream[p]=stream[p]}stream=newStream;var fd=FS.nextfd(fd_start,fd_end);stream.fd=fd;FS.streams[fd]=stream;return stream},closeStream:function(fd){FS.streams[fd]=null},chrdev_stream_ops:{open:function(stream){var device=FS.getDevice(stream.node.rdev);stream.stream_ops=device.stream_ops;if(stream.stream_ops.open){stream.stream_ops.open(stream)}},llseek:function(){throw new FS.ErrnoError(70)}},major:function(dev){return dev>>8},minor:function(dev){return dev&255},makedev:function(ma,mi){return ma<<8|mi},registerDevice:function(dev,ops){FS.devices[dev]={stream_ops:ops}},getDevice:function(dev){return FS.devices[dev]},getMounts:function(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:function(populate,callback){if(typeof populate==="function"){callback=populate;populate=false}FS.syncFSRequests++;if(FS.syncFSRequests>1){err("warning: "+FS.syncFSRequests+" FS.syncfs operations in flight at once, probably just doing extra work")}var mounts=FS.getMounts(FS.root.mount);var completed=0;function doCallback(errCode){FS.syncFSRequests--;return callback(errCode)}function done(errCode){if(errCode){if(!done.errored){done.errored=true;return doCallback(errCode)}return}if(++completed>=mounts.length){doCallback(null)}}mounts.forEach(function(mount){if(!mount.type.syncfs){return done(null)}mount.type.syncfs(mount,populate,done)})},mount:function(type,opts,mountpoint){var root=mountpoint==="/";var pseudo=!mountpoint;var node;if(root&&FS.root){throw new FS.ErrnoError(10)}else if(!root&&!pseudo){var lookup=FS.lookupPath(mountpoint,{follow_mount:false});mountpoint=lookup.path;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:[]};var mountRoot=type.mount(mount);mountRoot.mount=mount;mount.root=mountRoot;if(root){FS.root=mountRoot}else if(node){node.mounted=mount;if(node.mount){node.mount.mounts.push(mount)}}return mountRoot},unmount:function(mountpoint){var lookup=FS.lookupPath(mountpoint,{follow_mount:false});if(!FS.isMountpoint(lookup.node)){throw new FS.ErrnoError(28)}var node=lookup.node;var mount=node.mounted;var mounts=FS.getMounts(mount);Object.keys(FS.nameTable).forEach(function(hash){var current=FS.nameTable[hash];while(current){var next=current.name_next;if(mounts.includes(current.mount)){FS.destroyNode(current)}current=next}});node.mounted=null;var idx=node.mount.mounts.indexOf(mount);node.mount.mounts.splice(idx,1)},lookup:function(parent,name){return parent.node_ops.lookup(parent,name)},mknod:function(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:function(path,mode){mode=mode!==undefined?mode:438;mode&=4095;mode|=32768;return FS.mknod(path,mode,0)},mkdir:function(path,mode){mode=mode!==undefined?mode:511;mode&=511|512;mode|=16384;return FS.mknod(path,mode,0)},mkdirTree:function(path,mode){var dirs=path.split("/");var d="";for(var i=0;ithis.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(){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;if(!hasByteServing)chunkSize=datalength;var doXHR=function(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!");var xhr=new XMLHttpRequest;xhr.open("GET",url,false);if(datalength!==chunkSize)xhr.setRequestHeader("Range","bytes="+from+"-"+to);if(typeof Uint8Array!="undefined")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(xhr.response||[])}else{return intArrayFromString(xhr.responseText||"",true)}};var lazyArray=this;lazyArray.setDataGetter(function(chunkNum){var start=chunkNum*chunkSize;var end=(chunkNum+1)*chunkSize-1;end=Math.min(end,datalength-1);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){chunkSize=datalength=1;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:function(){if(!this.lengthKnown){this.cacheLength()}return this._length}},chunkSize:{get: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);if(properties.contents){node.contents=properties.contents}else if(properties.url){node.contents=null;node.url=properties.url}Object.defineProperties(node,{usedBytes:{get:function(){return this.contents.length}}});var stream_ops={};var keys=Object.keys(node.stream_ops);keys.forEach(function(key){var fn=node.stream_ops[key];stream_ops[key]=function forceLoadLazyFile(){FS.forceLoadFile(node);return fn.apply(null,arguments)}});stream_ops.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);if(contents.slice){for(var i=0;i>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?tempDouble>0?(Math.min(+Math.floor(tempDouble/4294967296),4294967295)|0)>>>0:~~+Math.ceil((tempDouble-+(~~tempDouble>>>0))/4294967296)>>>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()/1e3|0;HEAP32[buf+60>>2]=0;HEAP32[buf+64>>2]=stat.mtime.getTime()/1e3|0;HEAP32[buf+68>>2]=0;HEAP32[buf+72>>2]=stat.ctime.getTime()/1e3|0;HEAP32[buf+76>>2]=0;tempI64=[stat.ino>>>0,(tempDouble=stat.ino,+Math.abs(tempDouble)>=1?tempDouble>0?(Math.min(+Math.floor(tempDouble/4294967296),4294967295)|0)>>>0:~~+Math.ceil((tempDouble-+(~~tempDouble>>>0))/4294967296)>>>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){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){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);HEAP8[buf+len]=endChar;return len},doAccess:function(path,amode){if(amode&~7){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&&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>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>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(){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){return low}};function ___syscall_access(path,amode){try{path=SYSCALLS.getStr(path);return SYSCALLS.doAccess(path,amode)}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_chmod(path,mode){try{path=SYSCALLS.getStr(path);FS.chmod(path,mode);return 0}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_chown32(path,owner,group){try{path=SYSCALLS.getStr(path);FS.chown(path,owner,group);return 0}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_fchmod(fd,mode){try{FS.fchmod(fd,mode);return 0}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_fchown32(fd,owner,group){try{FS.fchown(fd,owner,group);return 0}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}function setErrNo(value){HEAP32[___errno_location()>>2]=value;return value}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;case 3:return stream.flags;case 4:{var arg=SYSCALLS.get();stream.flags|=arg;return 0}case 5:{var arg=SYSCALLS.get();var offset=0;HEAP16[arg+offset>>1]=2;return 0}case 6:case 7:return 0;case 16:case 8:return-28;case 9:setErrNo(28);return-1;default:{return-28}}}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_fstat64(fd,buf){try{var stream=SYSCALLS.getStreamFromFD(fd);return SYSCALLS.doStat(FS.stat,stream.path,buf)}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_fstatat64(dirfd,path,buf,flags){try{path=SYSCALLS.getStr(path);var nofollow=flags&256;var allowEmpty=flags&4096;flags=flags&~4352;path=SYSCALLS.calculateAt(dirfd,path,allowEmpty);return SYSCALLS.doStat(nofollow?FS.lstat:FS.stat,path,buf)}catch(e){if(typeof FS==="undefined"||!(e instanceof 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run(args){args=args||arguments_;if(runDependencies>0){return}preRun();if(runDependencies>0){return}function doRun(){if(calledRun)return;calledRun=true;Module["calledRun"]=true;if(ABORT)return;initRuntime();if(Module["onRuntimeInitialized"])Module["onRuntimeInitialized"]();postRun()}if(Module["setStatus"]){Module["setStatus"]("Running...");setTimeout(function(){setTimeout(function(){Module["setStatus"]("")},1);doRun()},1)}else{doRun()}}Module["run"]=run;if(Module["preInit"]){if(typeof Module["preInit"]=="function")Module["preInit"]=[Module["preInit"]];while(Module["preInit"].length>0){Module["preInit"].pop()()}}run(); 73 | 74 | 75 | // The shell-pre.js and emcc-generated code goes above 76 | return Module; 77 | }); // The end of the promise being returned 78 | 79 | return initSqlJsPromise; 80 | } // The end of our initSqlJs function 81 | 82 | // This bit below is copied almost exactly from what you get when you use the MODULARIZE=1 flag with emcc 83 | // However, we don't want to use the emcc modularization. See shell-pre.js 84 | if (typeof exports === 'object' && typeof module === 'object'){ 85 | module.exports = initSqlJs; 86 | // This will allow the module to be used in ES6 or CommonJS 87 | module.exports.default = initSqlJs; 88 | } 89 | else if (typeof define === 'function' && define['amd']) { 90 | define([], function() { return initSqlJs; }); 91 | } 92 | else if (typeof exports === 'object'){ 93 | exports["Module"] = initSqlJs; 94 | } 95 | -------------------------------------------------------------------------------- /src/sql.js/sql-wasm.wasm: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/hcliff/sqlite-ipfs/b5c9b397b0396181f3867a7eeaaf790e6a4f16b1/src/sql.js/sql-wasm.wasm -------------------------------------------------------------------------------- /tsconfig.json: -------------------------------------------------------------------------------- 1 | { 2 | "include": [ "src", "external.d.ts"], 3 | "compilerOptions": { 4 | /* Visit https://aka.ms/tsconfig.json to read more about this file */ 5 | 6 | /* Projects */ 7 | // "incremental": true, /* Enable incremental compilation */ 8 | // "composite": true, /* Enable constraints that allow a TypeScript project to be used with project references. */ 9 | // "tsBuildInfoFile": "./", /* Specify the folder for .tsbuildinfo incremental compilation files. */ 10 | // "disableSourceOfProjectReferenceRedirect": true, /* Disable preferring source files instead of declaration files when referencing composite projects */ 11 | // "disableSolutionSearching": true, /* Opt a project out of multi-project reference checking when editing. */ 12 | // "disableReferencedProjectLoad": true, /* Reduce the number of projects loaded automatically by TypeScript. */ 13 | 14 | /* Language and Environment */ 15 | "target": "es2020", /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */ 16 | "lib": ["es2020", "dom"], /* Specify a set of bundled library declaration files that describe the target runtime environment. */ 17 | // "jsx": "preserve", /* Specify what JSX code is generated. */ 18 | // "experimentalDecorators": true, /* Enable experimental support for TC39 stage 2 draft decorators. */ 19 | // "emitDecoratorMetadata": true, /* Emit design-type metadata for decorated declarations in source files. */ 20 | // "jsxFactory": "", /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h' */ 21 | // "jsxFragmentFactory": "", /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */ 22 | // "jsxImportSource": "", /* Specify module specifier used to import the JSX factory functions when using `jsx: react-jsx*`.` */ 23 | // "reactNamespace": "", /* Specify the object invoked for `createElement`. This only applies when targeting `react` JSX emit. */ 24 | // "noLib": true, /* Disable including any library files, including the default lib.d.ts. */ 25 | // "useDefineForClassFields": true, /* Emit ECMAScript-standard-compliant class fields. */ 26 | 27 | /* Modules */ 28 | "module": "es2020", /* Specify what module code is generated. */ 29 | // "rootDir": "./", /* Specify the root folder within your source files. */ 30 | "moduleResolution": "node", /* Specify how TypeScript looks up a file from a given module specifier. */ 31 | // "baseUrl": "./", /* Specify the base directory to resolve non-relative module names. */ 32 | // "paths": {}, /* Specify a set of entries that re-map imports to additional lookup locations. */ 33 | // "rootDirs": [], /* Allow multiple folders to be treated as one when resolving modules. */ 34 | // "typeRoots": [], /* Specify multiple folders that act like `./node_modules/@types`. */ 35 | "types": [], /* Specify type package names to be included without being referenced in a source file. */ 36 | // "allowUmdGlobalAccess": true, /* Allow accessing UMD globals from modules. */ 37 | // "resolveJsonModule": true, /* Enable importing .json files */ 38 | // "noResolve": true, /* Disallow `import`s, `require`s or ``s from expanding the number of files TypeScript should add to a project. */ 39 | 40 | /* JavaScript Support */ 41 | // "allowJs": true, /* Allow JavaScript files to be a part of your program. Use the `checkJS` option to get errors from these files. */ 42 | // "checkJs": true, /* Enable error reporting in type-checked JavaScript files. */ 43 | // "maxNodeModuleJsDepth": 1, /* Specify the maximum folder depth used for checking JavaScript files from `node_modules`. Only applicable with `allowJs`. */ 44 | 45 | /* Emit */ 46 | // "declaration": true, /* Generate .d.ts files from TypeScript and JavaScript files in your project. */ 47 | // "declarationMap": true, /* Create sourcemaps for d.ts files. */ 48 | // "emitDeclarationOnly": true, /* Only output d.ts files and not JavaScript files. */ 49 | // "sourceMap": true, /* Create source map files for emitted JavaScript files. */ 50 | // "outFile": "./", /* Specify a file that bundles all outputs into one JavaScript file. If `declaration` is true, also designates a file that bundles all .d.ts output. */ 51 | // "outDir": "./", /* Specify an output folder for all emitted files. */ 52 | // "removeComments": true, /* Disable emitting comments. */ 53 | // "noEmit": true, /* Disable emitting files from a compilation. */ 54 | // "importHelpers": true, /* Allow importing helper functions from tslib once per project, instead of including them per-file. */ 55 | // "importsNotUsedAsValues": "remove", /* Specify emit/checking behavior for imports that are only used for types */ 56 | // "downlevelIteration": true, /* Emit more compliant, but verbose and less performant JavaScript for iteration. */ 57 | // "sourceRoot": "", /* Specify the root path for debuggers to find the reference source code. */ 58 | // "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */ 59 | // "inlineSourceMap": true, /* Include sourcemap files inside the emitted JavaScript. */ 60 | // "inlineSources": true, /* Include source code in the sourcemaps inside the emitted JavaScript. */ 61 | // "emitBOM": true, /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */ 62 | // "newLine": "crlf", /* Set the newline character for emitting files. */ 63 | // "stripInternal": true, /* Disable emitting declarations that have `@internal` in their JSDoc comments. */ 64 | // "noEmitHelpers": true, /* Disable generating custom helper functions like `__extends` in compiled output. */ 65 | // "noEmitOnError": true, /* Disable emitting files if any type checking errors are reported. */ 66 | // "preserveConstEnums": true, /* Disable erasing `const enum` declarations in generated code. */ 67 | // "declarationDir": "./", /* Specify the output directory for generated declaration files. */ 68 | // "preserveValueImports": true, /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */ 69 | 70 | /* Interop Constraints */ 71 | // "isolatedModules": true, /* Ensure that each file can be safely transpiled without relying on other imports. */ 72 | // "allowSyntheticDefaultImports": true, /* Allow 'import x from y' when a module doesn't have a default export. */ 73 | "esModuleInterop": true, /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. */ 74 | // "preserveSymlinks": true, /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */ 75 | "forceConsistentCasingInFileNames": true, /* Ensure that casing is correct in imports. */ 76 | 77 | /* Type Checking */ 78 | "strict": true, /* Enable all strict type-checking options. */ 79 | // "noImplicitAny": true, /* Enable error reporting for expressions and declarations with an implied `any` type.. */ 80 | // "strictNullChecks": true, /* When type checking, take into account `null` and `undefined`. */ 81 | // "strictFunctionTypes": true, /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */ 82 | // "strictBindCallApply": true, /* Check that the arguments for `bind`, `call`, and `apply` methods match the original function. */ 83 | // "strictPropertyInitialization": true, /* Check for class properties that are declared but not set in the constructor. */ 84 | // "noImplicitThis": true, /* Enable error reporting when `this` is given the type `any`. */ 85 | // "useUnknownInCatchVariables": true, /* Type catch clause variables as 'unknown' instead of 'any'. */ 86 | // "alwaysStrict": true, /* Ensure 'use strict' is always emitted. */ 87 | // "noUnusedLocals": true, /* Enable error reporting when a local variables aren't read. */ 88 | // "noUnusedParameters": true, /* Raise an error when a function parameter isn't read */ 89 | // "exactOptionalPropertyTypes": true, /* Interpret optional property types as written, rather than adding 'undefined'. */ 90 | // "noImplicitReturns": true, /* Enable error reporting for codepaths that do not explicitly return in a function. */ 91 | // "noFallthroughCasesInSwitch": true, /* Enable error reporting for fallthrough cases in switch statements. */ 92 | // "noUncheckedIndexedAccess": true, /* Include 'undefined' in index signature results */ 93 | // "noImplicitOverride": true, /* Ensure overriding members in derived classes are marked with an override modifier. */ 94 | // "noPropertyAccessFromIndexSignature": true, /* Enforces using indexed accessors for keys declared using an indexed type */ 95 | // "allowUnusedLabels": true, /* Disable error reporting for unused labels. */ 96 | // "allowUnreachableCode": true, /* Disable error reporting for unreachable code. */ 97 | 98 | /* Completeness */ 99 | // "skipDefaultLibCheck": true, /* Skip type checking .d.ts files that are included with TypeScript. */ 100 | "skipLibCheck": true /* Skip type checking all .d.ts files. */ 101 | } 102 | } 103 | -------------------------------------------------------------------------------- /webpack.config.js: -------------------------------------------------------------------------------- 1 | const NodePolyfillPlugin = require('node-polyfill-webpack-plugin'); 2 | const path = require('path'); 3 | 4 | const example = { 5 | target: 'web', 6 | watch: false, 7 | devServer: { 8 | magicHtml: false, 9 | watchFiles: [], 10 | 11 | static: ["example/assets"], 12 | https: true, 13 | // interferes with targeting webworkers 14 | hot: false, 15 | liveReload: false, 16 | // headers required for SharedArrayBuffer to be available 17 | // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer/Planned_changes 18 | headers: { 19 | 'Cross-Origin-Embedder-Policy': 'require-corp', 20 | 'Cross-Origin-Opener-Policy': 'same-origin', 21 | }, 22 | devMiddleware: { 23 | // webpack attempts to serve compiled ts files as a video (???) 24 | // overide that behaviour 25 | mimeTypes: { 'ts': 'application/javascript' }, 26 | } 27 | }, 28 | 29 | devtool: 'inline-source-map', 30 | entry: { 31 | index: "./example/index.ts" 32 | }, 33 | plugins: [ 34 | new NodePolyfillPlugin(), 35 | ], 36 | module: { 37 | rules: [ 38 | { 39 | test: /\.tsx?$/, 40 | use: "ts-loader", 41 | exclude: /node_modules/, 42 | }, 43 | { 44 | test: [/\.wasm$/], 45 | type: 'asset/resource', 46 | }, 47 | { 48 | test: [/\.sqlite3$/], 49 | loader: 'raw-loader', 50 | } 51 | ], 52 | }, 53 | resolve: { 54 | extensions: [".tsx", ".ts", ".js"], 55 | fallback: { 56 | fs: false, 57 | crypto: false, 58 | path: false, 59 | }, 60 | } 61 | } 62 | 63 | const web = { 64 | target: 'web', 65 | devtool: 'inline-source-map', 66 | entry: { 67 | index: "./src/index.ts" 68 | }, 69 | plugins: [ 70 | new NodePolyfillPlugin(), 71 | ], 72 | module: { 73 | rules: [ 74 | { 75 | test: /\.tsx?$/, 76 | use: "ts-loader", 77 | exclude: /node_modules/, 78 | } 79 | ], 80 | }, 81 | resolve: { 82 | extensions: [".tsx", ".ts", ".js"], 83 | fallback: { 84 | fs: false, 85 | crypto: false, 86 | path: false, 87 | }, 88 | }, 89 | output: { 90 | filename: "[name].js", 91 | }, 92 | }; 93 | 94 | const workers = { 95 | watch: false, 96 | target: 'webworker', 97 | devtool: 'inline-source-map', 98 | entry: { 99 | "db.worker": "./src/db.worker.ts", 100 | "ipfs.worker": "./src/ipfs.worker.ts" 101 | }, 102 | plugins: [ 103 | new NodePolyfillPlugin(), 104 | ], 105 | module: { 106 | rules: [ 107 | { 108 | test: /\.tsx?$/, 109 | use: "ts-loader", 110 | exclude: /node_modules/, 111 | } 112 | ], 113 | }, 114 | resolve: { 115 | extensions: [".tsx", ".ts", ".js"], 116 | fallback: { 117 | fs: false, 118 | crypto: false, 119 | path: false, 120 | }, 121 | }, 122 | output: { 123 | filename: "[name].js", 124 | }, 125 | }; 126 | 127 | module.exports = [example, web, workers]; --------------------------------------------------------------------------------