beremiz

Added runtime/spawn_subprocess.py. Force use posix spawn instead of fork, with API similar to subprocess. Using fork in runtime is incompatible with Xenomai, because memory is locked and this can lead to out of memory error.

2018-10-23, Edouard Tisserant
7ce4e5cf6339
Added runtime/spawn_subprocess.py. Force use posix spawn instead of fork, with API similar to subprocess. Using fork in runtime is incompatible with Xenomai, because memory is locked and this can lead to out of memory error.
function pyjs_extend(klass, base) {
function klass_object_inherit() {}
klass_object_inherit.prototype = base.prototype;
klass_object = new klass_object_inherit();
for (var i in base.prototype.__class__) {
v = base.prototype.__class__[i];
if (typeof v == "function" && (v.class_method || v.static_method || v.unbound_method))
{
klass_object[i] = v;
}
}
function klass_inherit() {}
klass_inherit.prototype = klass_object;
klass.prototype = new klass_inherit();
klass_object.constructor = klass;
klass.prototype.__class__ = klass_object;
for (var i in base.prototype) {
v = base.prototype[i];
if (typeof v == "function" && v.instance_method)
{
klass.prototype[i] = v;
}
}
}
/* creates a class, derived from bases, with methods and variables */
function pyjs_type(clsname, bases, methods)
{
var fn_cls = function() {};
fn_cls.__name__ = clsname;
var fn = function() {
var instance = new fn_cls();
if(instance.__init__) instance.__init__.apply(instance, arguments);
return instance;
}
fn_cls.__initialize__ = function() {
if (fn_cls.__was_initialized__) return;
fn_cls.__was_initialized__ = true;
fn_cls.__extend_baseclasses();
fn_cls.prototype.__class__.__new__ = fn;
fn_cls.prototype.__class__.__name__ = clsname;
}
fn_cls.__extend_baseclasses = function() {
var bi;
for (bi in fn_cls.__baseclasses)
{
var b = fn_cls.__baseclasses[bi];
if (b.__was_initialized__)
{
continue;
}
b.__initialize__();
}
for (bi in fn_cls.__baseclasses)
{
var b = fn_cls.__baseclasses[bi];
pyjs_extend(fn_cls, b);
}
}
if (!bases) {
bases = [pyjslib.__Object];
}
fn_cls.__baseclasses = bases;
fn_cls.__initialize__();
for (k in methods) {
var mth = methods[k];
var mtype = typeof mth;
if (mtype == "function" ) {
fn_cls.prototype[k] = mth;
fn_cls.prototype.__class__[k] = function () {
return fn_cls.prototype[k].call.apply(
fn_cls.prototype[k], arguments);
};
fn_cls.prototype.__class__[k].unbound_method = true;
fn_cls.prototype.instance_method = true;
fn_cls.prototype.__class__[k].__name__ = k;
fn_cls.prototype[k].__name__ = k;
} else {
fn_cls.prototype.__class__[k] = mth;
}
}
return fn;
}
function pyjs_kwargs_call(obj, func, star_args, args)
{
var call_args;
if (star_args)
{
if (!pyjslib.isIteratable(star_args))
{
throw (pyjslib.TypeError(func.__name__ + "() arguments after * must be a sequence" + pyjslib.repr(star_args)));
}
call_args = Array();
var __i = star_args.__iter__();
var i = 0;
try {
while (true) {
call_args[i]=__i.next();
i++;
}
} catch (e) {
if (e != pyjslib.StopIteration) {
throw e;
}
}
if (args)
{
var n = star_args.length;
for (var i=0; i < args.length; i++) {
call_args[n+i]=args[i];
}
}
}
else
{
call_args = args;
}
return func.apply(obj, call_args);
}
function pyjs_kwargs_function_call(func, star_args, args)
{
return pyjs_kwargs_call(null, func, star_args, args);
}
function pyjs_kwargs_method_call(obj, method_name, star_args, args)
{
var method = obj[method_name];
if (method.parse_kwargs)
{
args = method.parse_kwargs.apply(null, args);
}
return pyjs_kwargs_call(obj, method, star_args, args);
}
//String.prototype.__getitem__ = String.prototype.charAt;
//String.prototype.upper = String.prototype.toUpperCase;
//String.prototype.lower = String.prototype.toLowerCase;
//String.prototype.find=pyjslib.String_find;
//String.prototype.join=pyjslib.String_join;
//String.prototype.isdigit=pyjslib.String_isdigit;
//String.prototype.__iter__=pyjslib.String___iter__;
//
//String.prototype.__replace=String.prototype.replace;
//String.prototype.replace=pyjslib.String_replace;
//
//String.prototype.split=pyjslib.String_split;
//String.prototype.strip=pyjslib.String_strip;
//String.prototype.lstrip=pyjslib.String_lstrip;
//String.prototype.rstrip=pyjslib.String_rstrip;
//String.prototype.startswith=pyjslib.String_startswith;
var str = String;