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workerWrapper.js
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workerWrapper.js
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function _craftMessage(data,finalResponse=false) {
var buf = new Uint8Array(lengthBytesUTF8(data)+1);
var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length);
var transferObject = {
'callbackId': workerCallbackId,
'finalResponse': finalResponse,
'data': buf
};
postMessage(transferObject, [transferObject.data.buffer]);
}
var waitingForInput = 0;
function messageCallback(msg) {
if (typeof msg.data === 'string') {
if (waitingForInput) {
waitingForInput = 0;
Module.stdin_line = msg.data;
Module.awakeStatus = 1;
return false;
}
if (msg.data == 'continue') {
Module.awakeStatus = 1;
} else if (msg.data == 'traceback') {
Module.awakeStatus = 2;
} else if (msg.data == 'step') {
Module.awakeStatus = 3;
} else if (msg.data == 'quit') {
Module.awakeStatus = 4;
}
return false;
}
}
addEventListener("message",messageCallback);
var _idbfsSuccess = false;
var Module = {
preRun: [function() {
/* Load IDBFS */
FS.mount(IDBFS, {}, '/home/web_user');
FS.mkdir('/scratch');
FS.mount(IDBFS, {}, '/scratch');
FS.syncfs(true, function (err) {
if (err) {
_craftMessage('E(debug) Error loading filesystem.');
} else {
_idbfsSuccess = true;
}
});
/* Create directories for runtime */
FS.mkdir('/usr');
FS.mkdir('/usr/local');
FS.mkdir('/usr/local/lib');
FS.mkdir('/usr/local/lib/kuroko');
FS.mkdir('/usr/local/lib/kuroko/syntax');
FS.mkdir('/usr/local/lib/kuroko/foo');
FS.mkdir('/usr/local/lib/kuroko/foo/bar');
/* Load source modules from web server */
const modules = ["help.krk","collections.krk","json.krk","string.krk","web.krk","dummy.krk","emscripten.krk"];
for (const i in modules) {
FS.createPreloadedFile('/usr/local/lib/kuroko', modules[i], "/res/" + modules[i], 1, 0)
}
FS.createPreloadedFile('/usr/local/lib/kuroko/syntax', '__init__.krk', '/res/init.krk', 1, 0)
FS.createPreloadedFile('/usr/local/lib/kuroko/syntax', 'highlighter.krk', '/res/highlighter.krk', 1, 0)
FS.createPreloadedFile('/usr/local/lib/kuroko/foo', '__init__.krk', '/res/init.krk', 1, 0)
FS.createPreloadedFile('/usr/local/lib/kuroko/foo/bar', '__init__.krk', '/res/init.krk', 1, 0)
FS.createPreloadedFile('/usr/local/lib/kuroko/foo/bar', 'baz.krk', '/res/baz.krk', 1, 0)
/* Go to home directory */
FS.chdir('/home/web_user');
}],
postRun: [function() {
if (_idbfsSuccess) {
FS.syncfs(function (err) {
if (err) {
console.log(err);
}
});
}
}],
print: function(text) {
if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
_craftMessage('O' + text);
},
printErr: function(text) {
if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
_craftMessage('E' + text);
}
}