micropython/ports/javascript/library.js

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017, 2018 Rami Ali
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
mergeInto(LibraryManager.library, {
mp_js_write: function(ptr, len) {
for (var i = 0; i < len; ++i) {
if (typeof window === 'undefined') {
var b = Buffer.alloc(1);
b.writeInt8(getValue(ptr + i, 'i8'));
process.stdout.write(b);
} else {
var c = String.fromCharCode(getValue(ptr + i, 'i8'));
var mp_js_stdout = document.getElementById('mp_js_stdout');
var print = new Event('print');
print.data = c;
mp_js_stdout.dispatchEvent(print);
}
}
},
mp_js_ticks_ms: function() {
return (new Date()).getTime() - MP_JS_EPOCH;
},
mp_js_hook: function() {
if (typeof window === 'undefined') {
var mp_interrupt_char = Module.ccall('mp_hal_get_interrupt_char', 'number', ['number'], ['null']);
var fs = require('fs');
var buf = Buffer.alloc(1);
try {
var n = fs.readSync(process.stdin.fd, buf, 0, 1);
if (n > 0) {
if (buf[0] == mp_interrupt_char) {
Module.ccall('mp_sched_keyboard_interrupt', 'null', ['null'], ['null']);
} else {
process.stdout.write(String.fromCharCode(buf[0]));
}
}
} catch (e) {
if (e.code === 'EAGAIN') {
} else {
throw e;
}
}
}
},
});