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479 lines (428 loc) · 9.36 KB
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/***
DEVSIM
Copyright 2013 Devsim LLC
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
***/
/// Python is insisting on defined _POSIX_C_SOURCE and _X_OPEN_SOURCE
#include "Python.h"
#include "ObjectHolder.hh"
#include "dsAssert.hh"
#include <limits>
ObjectHolder::ObjectHolder() : object_(NULL)
{
}
ObjectHolder::ObjectHolder(const ObjectHolder &t) : object_(t.object_)
{
if (object_)
{
Py_INCREF(reinterpret_cast<PyObject *>(object_));
}
}
ObjectHolder &ObjectHolder::operator=(const ObjectHolder &t)
{
/// Need to stop referencing the current object
if (this != &t)
{
if (object_ != t.object_)
{
if (object_)
{
Py_DECREF(reinterpret_cast<PyObject *>(object_));
}
object_ = t.object_;
if (object_)
{
Py_INCREF(reinterpret_cast<PyObject *>(object_));
}
}
}
return *this;
}
ObjectHolder::~ObjectHolder()
{
if (object_)
{
Py_DECREF(reinterpret_cast<PyObject *>(object_));
}
}
void ObjectHolder::clear()
{
if (object_)
{
Py_DECREF(reinterpret_cast<PyObject *>(object_));
}
object_ = NULL;
}
ObjectHolder::ObjectHolder(void *t) : object_(t)
{
//// Assume the reference already had a reference count increase
#if 0
if (object_)
{
Py_INCREF(reinterpret_cast<PyObject *>(object_));
}
#endif
}
std::string ObjectHolder::GetString() const
{
std::string ret;
if (object_)
{
PyObject *strobj = PyObject_Str(reinterpret_cast<PyObject *>(object_));
if (strobj)
{
ret = PyString_AsString(strobj);
Py_DECREF(strobj);
}
}
return ret;
}
ObjectHolder::DoubleEntry_t ObjectHolder::GetDouble() const
{
bool ok = false;
double val(0.0);
if (object_)
{
PyObject *obj = reinterpret_cast<PyObject *>(object_);
if (PyFloat_CheckExact(obj))
{
ok = true;
val = PyFloat_AsDouble(obj);
}
else if (PyInt_CheckExact(obj) || PyLong_CheckExact(obj))
{
return this->GetInteger();
}
else if (PyString_CheckExact(obj))
{
PyObject *fobj = PyFloat_FromString(obj, NULL);
if (fobj)
{
ok = true;
val = PyFloat_AsDouble(fobj);
Py_DECREF(fobj);
}
else
{
PyErr_Clear();
}
}
}
return std::make_pair(ok, val);
}
ObjectHolder::BooleanEntry_t ObjectHolder::GetBoolean() const
{
bool ok = false;
bool val= false;
if (object_)
{
PyObject *obj = reinterpret_cast<PyObject *>(object_);
int ret = PyObject_IsTrue(obj);
if (ret != -1)
{
ok = true;
val = (ret == 1);
}
}
return std::make_pair(ok, val);
}
ObjectHolder::IntegerEntry_t ObjectHolder::GetInteger() const
{
bool ok = true;
int val= 0;
ObjectHolder::LongEntry_t lent = this->GetLong();
if (lent.first)
{
ptrdiff_t ret = lent.second;
if ((ret >= INT_MIN) && (ret <= INT_MAX))
{
ok = true;
val = ret;
}
else
{
ok = false;
}
}
return std::make_pair(ok, val);
}
ObjectHolder::LongEntry_t ObjectHolder::GetLong() const
{
bool ok =false;
ptrdiff_t val=0;
if (object_)
{
PyObject *obj = reinterpret_cast<PyObject *>(object_);
if (PyInt_CheckExact(obj))
{
ok = true;
val = PyInt_AsLong(obj);
}
else if (PyLong_CheckExact(obj))
{
ok = true;
val = PyLong_AsLong(obj);
}
else if (PyString_CheckExact(obj))
{
const std::string &s = this->GetString();
PyErr_Clear();
char *p;
PyObject *iobj = PyLong_FromString(const_cast<char *>(s.c_str()), &p, 10);
if (iobj)
{
if ((*p) == 0)
{
ok = true;
val = PyLong_AsLong(iobj);
}
Py_DECREF(iobj);
}
PyErr_Clear();
}
}
return std::make_pair(ok, val);
}
bool ObjectHolder::IsList() const
{
bool ok = false;
if (object_)
{
PyObject *obj = reinterpret_cast<PyObject *>(object_);
if (PySequence_Check(obj))
{
ok = true;
}
}
return ok;
}
bool ObjectHolder::GetListOfObjects(ObjectHolderList_t &objs) const
{
bool ok = false;
objs.clear();
if (IsList())
{
PyObject *obj = reinterpret_cast<PyObject *>(object_);
if (PySequence_Check(obj))
{
ok = true;
size_t len = PySequence_Size(obj);
objs.resize(len);
for (size_t i = 0; i < len; ++i)
{
//// this is a borrowed reference
PyObject *lobj = PySequence_GetItem(obj, i);
Py_INCREF(lobj);
objs[i] = ObjectHolder(lobj);
}
}
}
return ok;
}
bool ObjectHolder::GetDoubleList(std::vector<double> &values) const
{
bool ok = false;
values.clear();
ObjectHolderList_t objs;
ok = GetListOfObjects(objs);
if (ok)
{
values.resize(objs.size());
ok = true;
for (size_t i = 0; i < objs.size(); ++i)
{
const ObjectHolder::DoubleEntry_t &ent = objs[i].GetDouble();
if (ent.first)
{
values[i] = ent.second;
}
else
{
values.clear();
ok = false;
break;
}
}
}
return ok;
}
bool ObjectHolder::GetIntegerList(std::vector<int> &values) const
{
bool ok = false;
values.clear();
ObjectHolderList_t objs;
ok = GetListOfObjects(objs);
if (ok)
{
values.resize(objs.size());
ok = true;
for (size_t i = 0; i < objs.size(); ++i)
{
const ObjectHolder::IntegerEntry_t &ent = objs[i].GetInteger();
if (ent.first)
{
values[i] = ent.second;
}
else
{
values.clear();
ok = false;
break;
}
}
}
return ok;
}
bool ObjectHolder::GetLongList(std::vector<ptrdiff_t> &values) const
{
bool ok = false;
values.clear();
ObjectHolderList_t objs;
ok = GetListOfObjects(objs);
if (ok)
{
values.resize(objs.size());
ok = true;
for (size_t i = 0; i < objs.size(); ++i)
{
const ObjectHolder::LongEntry_t &ent = objs[i].GetLong();
if (ent.first)
{
values[i] = ent.second;
}
else
{
values.clear();
ok = false;
break;
}
}
}
return ok;
}
bool ObjectHolder::GetUnsignedLongList(std::vector<size_t> &values) const
{
std::vector<ptrdiff_t> lvalues;
bool ok = this->GetLongList(lvalues);
if (ok)
{
values.resize(lvalues.size());
for (size_t i = 0; i < values.size(); ++i)
{
// no error checking for now
values[i] = lvalues[i];
}
}
else
{
values.clear();
}
return ok;
}
bool ObjectHolder::GetStringList(std::vector<std::string> &values) const
{
bool ok = false;
values.clear();
ObjectHolderList_t objs;
ok = GetListOfObjects(objs);
if (ok)
{
values.resize(objs.size());
ok = true;
for (size_t i = 0; i < objs.size(); ++i)
{
values[i] = objs[i].GetString();
}
}
return ok;
}
bool ObjectHolder::GetHashKeys(ObjectHolderList_t &keys) const
{
bool ret = false;
keys.clear();
if (object_ && PyDict_CheckExact(object_))
{
ObjectHolder key_holder(PyDict_Keys(reinterpret_cast<PyObject *>(object_)));
key_holder.GetListOfObjects(keys);
ret = true;
}
return ret;
}
bool ObjectHolder::GetHashMap(ObjectHolderMap_t &hashmap) const
{
bool ret = false;
hashmap.clear();
if (object_ && PyDict_CheckExact(object_))
{
ret = true;
ObjectHolder items_holder(PyDict_Items(reinterpret_cast<PyObject *>(object_)));
ObjectHolderList_t items;
items_holder.GetListOfObjects(items);
ObjectHolderList_t item;
for (size_t i = 0; i < items.size(); ++i)
{
items[i].GetListOfObjects(item);
const std::string &key = item[0].GetString();
ObjectHolder value = item[1];
hashmap[key] = value;
}
}
return ret;
}
const void *ObjectHolder::GetObject() const
{
return object_;
}
void *ObjectHolder::GetObject()
{
return object_;
}
ObjectHolder::ObjectHolder(const std::string &s)
{
object_ = PyString_FromStringAndSize(s.c_str(), s.size());
// Py_INCREF(reinterpret_cast<PyObject *>(object_));
}
ObjectHolder::ObjectHolder(double v)
{
object_ = PyFloat_FromDouble(v);
// Py_INCREF(reinterpret_cast<PyObject *>(object_));
}
ObjectHolder::ObjectHolder(int v)
{
object_ = PyInt_FromLong(v);
// Py_INCREF(reinterpret_cast<PyObject *>(object_));
}
ObjectHolder::ObjectHolder(ObjectHolderList_t &list)
{
const size_t length = list.size();
PyObject *list_object = PyTuple_New(length);
for (size_t i = 0; i < length; ++i)
{
PyObject *ns = reinterpret_cast<PyObject *>(list[i].GetObject());
Py_INCREF(ns);
//// steals the reference
PyTuple_SET_ITEM(list_object, i, ns);
}
object_ = list_object;
}
ObjectHolder::ObjectHolder(ObjectHolderMap_t &map)
{
PyObject *map_object = PyDict_New();
for (ObjectHolderMap_t::iterator it = map.begin(); it != map.end(); ++it)
{
const std::string &key = it->first;
PyObject *val = reinterpret_cast<PyObject *>((it->second).GetObject());
Py_INCREF(val);
PyDict_SetItemString(map_object, key.c_str(), val);
}
Py_INCREF(map_object);
object_ = map_object;
}