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libsql/libsql-sqlite3/ext/wasm/speedtest1-wasmfs.mjs
2023-10-16 13:58:16 +02:00

91 lines
2.7 KiB
JavaScript

import sqlite3InitModule from './jswasm/speedtest1-wasmfs.mjs';
const wMsg = (type,...args)=>{
postMessage({type, args});
};
wMsg('log',"speedtest1-wasmfs starting...");
/**
If this environment contains OPFS, this function initializes it and
returns the name of the dir on which OPFS is mounted, else it returns
an empty string.
*/
const wasmfsDir = function f(wasmUtil,dirName="/opfs"){
if(undefined !== f._) return f._;
if( !self.FileSystemHandle
|| !self.FileSystemDirectoryHandle
|| !self.FileSystemFileHandle){
return f._ = "";
}
try{
if(0===wasmUtil.xCallWrapped(
'sqlite3_wasm_init_wasmfs', 'i32', ['string'], dirName
)){
return f._ = dirName;
}else{
return f._ = "";
}
}catch(e){
// sqlite3_wasm_init_wasmfs() is not available
return f._ = "";
}
};
wasmfsDir._ = undefined;
const log = (...args)=>wMsg('log',...args);
const logErr = (...args)=>wMsg('logErr',...args);
const runTests = function(sqlite3){
console.log("Module inited.",sqlite3);
const wasm = sqlite3.wasm;
const __unlink = wasm.xWrap("sqlite3_wasm_vfs_unlink", "int", ["*","string"]);
const unlink = (fn)=>__unlink(0,fn);
const pDir = wasmfsDir(wasm);
if(pDir) log("Persistent storage:",pDir);
else{
logErr("Expecting persistent storage in this build.");
return;
}
const scope = wasm.scopedAllocPush();
const dbFile = pDir+"/speedtest1.db";
const urlParams = new URL(self.location.href).searchParams;
const argv = ["speedtest1"];
if(urlParams.has('flags')){
argv.push(...(urlParams.get('flags').split(',')));
let i = argv.indexOf('--vfs');
if(i>=0) argv.splice(i,2);
}else{
argv.push(
"--singlethread",
"--nomutex",
//"--nosync",
"--nomemstat",
"--size", "10"
);
}
if(argv.indexOf('--memdb')>=0){
logErr("WARNING: --memdb flag trumps db filename.");
}
argv.push("--big-transactions"/*important for tests 410 and 510!*/,
dbFile);
//log("argv =",argv);
// These log messages are not emitted to the UI until after main() returns. Fixing that
// requires moving the main() call and related cleanup into a timeout handler.
if(pDir) unlink(dbFile);
log("Starting native app:\n ",argv.join(' '));
log("This will take a while and the browser might warn about the runaway JS.",
"Give it time...");
setTimeout(function(){
if(pDir) unlink(dbFile);
wasm.xCall('wasm_main', argv.length,
wasm.scopedAllocMainArgv(argv));
wasm.scopedAllocPop(scope);
if(pDir) unlink(dbFile);
log("Done running native main()");
}, 25);
}/*runTests()*/;
sqlite3InitModule({
print: log,
printErr: logErr
}).then(runTests);