SQLite

  }

  //sqlite3.config.warn("OPFS options =",options,globalThis.location);

  if('function' === typeof options.proxyUri){
    options.proxyUri = options.proxyUri();
  }
  const thePromise = new Promise(function(promiseResolve_, promiseReject_){
    const loggers = {
      0:sqlite3.config.error,
      1:sqlite3.config.warn,
      2:sqlite3.config.log
    };
    const logImpl = (level,...args)=>{
      if(options.verbose>level) loggers[level]("OPFS syncer:",...args);

        s.count = s.time = 0;
        s = metrics.s11n.deserialize = Object.create(null);
        s.count = s.time = 0;
      }
    }/*metrics*/;
    const opfsVfs = new sqlite3_vfs();
    const opfsIoMethods = new sqlite3_io_methods();
    let promiseWasRejected = undefined;
    const promiseReject = (err)=>{
      promiseWasRejected = true;
      opfsVfs.dispose();
      return promiseReject_(err);
    };
    const promiseResolve = (value)=>{
      promiseWasRejected = false;
      return promiseResolve_(value);
    };
    const W =
//#if target=es6-bundler-friendly
    new Worker(new URL("sqlite3-opfs-async-proxy.js", import.meta.url));
//#elif target=es6-module
    new Worker(new URL(options.proxyUri, import.meta.url));
//#else
    new Worker(options.proxyUri);
//#endif
    setTimeout(()=>{
      /* At attempt to work around a browser-specific quirk in which
         the Worker load is failing in such a way that we neither
         resolve nor reject it. This workaround gives that resolve/reject
         a time limit and rejects if that timer expires. Discussion:
         https://sqlite.org/forum/forumpost/a708c98dcb3ef */
      if(undefined===promiseWasRejected){
        promiseReject(
          new Error("Timeout while waiting for OPFS async proxy worker.")
        );
      }
    }, 4000);
    W._originalOnError = W.onerror /* will be restored later */;
    W.onerror = function(err){
      // The error object doesn't contain any useful info when the
      // failure is, e.g., that the remote script is 404.
      error("Error initializing OPFS asyncer:",err);
      promiseReject(new Error("Loading OPFS async Worker failed for unknown reasons."));
    };

              Pass our config and shared state on to the async worker.*/
            W.postMessage({type: 'opfs-async-init',args: state});
            break;
          case 'opfs-async-inited':{
            /*Indicates that the async partner has received the 'init'
              and has finished initializing, so the real work can
              begin...*/
            if(true===promiseWasRejected){
              break /* promise was already rejected via timer */;
            }
            try {
              sqlite3.vfs.installVfs({
                io: {struct: opfsIoMethods, methods: ioSyncWrappers},
                vfs: {struct: opfsVfs, methods: vfsSyncWrappers}
              });
              state.sabOPView = new Int32Array(state.sabOP);
              state.sabFileBufView = new Uint8Array(state.sabIO, 0, state.fileBufferSize);

      rc = capi.sqlite3_db_config(this.db, capi.SQLITE_DBCONFIG_MAX+1, 0);
      T.assert(capi.SQLITE_MISUSE === rc);
      rc = capi.sqlite3_db_config(this.db, capi.SQLITE_DBCONFIG_MAINDBNAME, "main");
      T.assert(0 === rc);
      const stack = wasm.pstack.pointer;
      try {
        const [pCur, pHi] = wasm.pstack.allocChunks(2,'i64');











        wasm.poke32([pCur, pHi], 0);
        let [vCur, vHi] = wasm.peek32(pCur, pHi);
        T.assert(0===vCur).assert(0===vHi);
        rc = capi.sqlite3_status(capi.SQLITE_STATUS_MEMORY_USED,
                                 pCur, pHi, 0);
        [vCur, vHi] = wasm.peek32(pCur, pHi);
        //console.warn("i32 vCur,vHi",vCur,vHi);