/usr/include/opengm/python/pythonfunction.hxx is in libopengm-dev 2.3.6+20160905-1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#ifndef OPENGM_PYTHON_FUNCTION_INCL_HXX
#define OPENGM_PYTHON_FUNCTION_INCL_HXX
#include <algorithm>
#include <vector>
#include <cmath>
#include "opengm/opengm.hxx"
#include "opengm/functions/function_registration.hxx"
#include "opengm/functions/function_properties_base.hxx"
#include <boost/python.hpp>
#include <boost/python/stl_iterator.hpp>
//#include "../export_typedes.hxx"
//#include "../converter.hxx"
namespace opengm{
namespace python{
using namespace boost::python;
template<class T, class I , class L>
class PythonFunction
: public opengm::FunctionBase<PythonFunction<T, I, L>, T, I, L>
{
public:
typedef T ValueType;
typedef L LabelType;
typedef I IndexType;
//empty
PythonFunction(){
}
// copy constructor
PythonFunction(const PythonFunction & other)
:
gilEnsure_(other.gilEnsure_),
functionObj_(other.functionObj_),
labelVector_(other.labelVector_),
coordinateBuffer_(other.coordinateBuffer_),
shape_(other.shape_),
size_(other.size_){
}
// regular constructor
PythonFunction(boost::python::object functionObj,boost::python::object shapeObj,const bool gilEnsure=true)
:gilEnsure_(gilEnsure),
functionObj_(functionObj),
labelVector_(),
coordinateBuffer_(),
shape_(),
size_(){
stl_input_iterator<int> shapeBegin(shapeObj), shapeEnd;
shape_.assign(shapeBegin,shapeEnd);
labelVector_.resize(shape_.size());
size_=1;
for(size_t d=0;d<shape_.size();++d){
size_*=shape_[d];
}
//std::cout<<"construct donen\n";
}
// assigment operator
PythonFunction & operator=(const PythonFunction & other){
if(&other!=this){
gilEnsure_=other.gilEnsure_;
coordinateBuffer_=other.coordinateBuffer_;
shape_=other.shape_;
functionObj_=other.functionObj_;
size_=other.size_;
labelVector_=other.labelVector_;
}
return *this;
}
// destructor
~PythonFunction(){
if(shape_.size()!=0){
//delete numpyCoordinates_;
// delete[] coordinateBuffer_;
}
}
LabelType shape(const size_t i) const{
return shape_[i];
}
size_t size() const{
return size_;
}
size_t dimension() const{
return shape_.size();
}
template<class ITERATOR>
ValueType operator()(ITERATOR labeling) const{
std::copy(labeling,labeling+shape_.size(),labelVector_.begin());
ValueType returnValue;
if(gilEnsure_){
PyGILState_STATE gstate;
gstate = PyGILState_Ensure ();
returnValue = boost::python::extract<ValueType> ( functionObj_( labelVector_) );
PyGILState_Release (gstate);
}
else{
returnValue = boost::python::extract<ValueType> ( functionObj_( labelVector_) );
}
return returnValue;
}
private:
bool gilEnsure_;
boost::python::object functionObj_;
mutable std::vector<LabelType> labelVector_;
//mutable boost::python::numeric::array numpyCoordinates_;
mutable LabelType * coordinateBuffer_;
std::vector<LabelType> shape_;
size_t size_;
};
}
}
namespace opengm{
template<class T,class I,class L>
class FunctionSerialization<python::PythonFunction<T, I, L> >{
public:
typedef typename python::PythonFunction<T, I, L>::ValueType ValueType;
static size_t indexSequenceSize(const python::PythonFunction<T, I, L>&){
throw RuntimeError("Cannot save/load gm with a pure python function: Pure python function cannot be serialized / deserialized");
return 0;
}
static size_t valueSequenceSize(const python::PythonFunction<T, I, L>&){
throw RuntimeError("Cannot save/load gm with a pure python function: Pure Python Function cannot be serialized / deserialized");
return 0;
}
template<class INDEX_OUTPUT_ITERATOR, class VALUE_OUTPUT_ITERATOR>
static void serialize(const python::PythonFunction<T, I, L>&, INDEX_OUTPUT_ITERATOR, VALUE_OUTPUT_ITERATOR){
throw RuntimeError("Cannot save/load gm with a pure python function: Pure Python Function cannot be serialized / deserialized");
}
template<class INDEX_INPUT_ITERATOR, class VALUE_INPUT_ITERATOR>
static void deserialize( INDEX_INPUT_ITERATOR, VALUE_INPUT_ITERATOR, python::PythonFunction<T, I, L>&){
throw RuntimeError(" Cannot save/load gm with a pure python function: Pure Python Function cannot be serialized / deserialized");
}
};
}
namespace opengm{
template<class F>
struct FunctionRegistration;
/// \cond HIDDEN_SYMBOLS
/// FunctionRegistration
template<class T, class I, class L>
struct FunctionRegistration<python::PythonFunction<T, I, L> > {
enum ID {
Id = opengm::FUNCTION_TYPE_ID_OFFSET + 100
};
};
}
#endif
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