view engine/swigwrappers/python/fife.i.templ @ 564:7d88eddd2ec7

Modified the addColored and addOutlined methods in the InstanceRenderer class to fix a memory leak. The new code attempts to insert the information in the proper map and if it already exists it will explicitly update the reference to the existing information. The new code no longer relies on the bracket operator of the std::map which was implicitly calling the equals operator of the ColoringInfo and OutlineInfo and causing the memory leak. fixes[ticket:472]
author vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
date Sat, 26 Jun 2010 00:42:14 +0000
parents 10a5f9e6c03f
children a7909cdcdc85
line wrap: on
line source

%module(directors="1") fife
%include "std_string.i"
%include "std_vector.i"
%include "std_pair.i"
%include "std_list.i"
%include "std_map.i"
%include "std_set.i"
%include "typemaps.i"
%include "exception.i"

/**
 * Some materials to understand exception handling:
 *
 * Basics about python exceptions:
 * 	http://docs.python.org/tut/node10.html
 * Python exception handling in C APIs
 * 	http://docs.python.org/api/exceptions.html
 * 	http://docs.python.org/api/exceptionHandling.html
 * SWIG exception handling
 * 	http://www.swig.org/Doc1.3/Customization.html#exception 
 * 	http://www.swig.org/Doc1.3/SWIGPlus.html#SWIGPlus_exception_specifications
 * 	http://www.swig.org/Doc1.3/Python.html#Python_nn36
 */

%feature("autodoc", "1");  // 0 == no param types, 1 == show param types

namespace std {
	%template(StringVector) vector<std::string>;
	%template(UintVector) vector<unsigned int>;
	%template(IntVector) vector<int>;
	%template(FloatVector) vector<float>;
	%template(DoubleVector) vector<double>;
	%template(BoolVector) vector<bool>;

	%template(UintUintPair) pair<unsigned int, unsigned int>;
	%template(UintUintPairVector) vector<std::pair<unsigned int, unsigned int> >;
};

%{
#include "util/base/exception.h"
static void handleDirectorException() {
	PyObject* exception = NULL;
	PyObject* value = NULL;
	PyObject* traceback = NULL;
	PyErr_Fetch(&exception, &value, &traceback);
	PyErr_NormalizeException(&exception, &value, &traceback);
	if (exception) {
		PySys_SetObject("last_type", exception);
		PySys_SetObject("last_value", value);
		PySys_SetObject("last_traceback", traceback);	
		
		PyObject* d = PyModule_GetDict (PyImport_AddModule ("__main__"));
		PyDict_SetItemString(d, "exc_type", exception);
		PyDict_SetItemString(d, "exc_value", value);
		PyDict_SetItemString(d, "exc_traceback", traceback ? traceback : Py_None);
		
		char buf[1024];
		sprintf (buf, "\n\
import traceback\n\
s = \"\"\n\
for filename, line, function, text in traceback.extract_tb(exc_traceback):\n\
	s = s + ' File \"%%s\", line %%d, in %%s\\n    %%s' %% (filename, line, function, text)\n\
	if s[-1] != '\\n': s = s + '\\n'\n\
for l in traceback.format_exception_only(exc_type, exc_value):\n\
	s = s + ' ' + l\n\
	if s[-1] != '\\n': s = s + '\\n'\n\
print s\n\
");
		PyObject* e = PyRun_String(buf, Py_file_input, d, d);
		if (!e) {
			PyErr_Print();
		}
		Py_XDECREF(e);
		Py_XDECREF(d);
		Py_XDECREF(exception);
		Py_XDECREF(value);
		Py_XDECREF(traceback);
	}
}

#define _FIFE_EXC_HANDLER(_fife_exc_type, _converted_type) \
	catch (FIFE::_fife_exc_type& _e) { \
		PyErr_Clear(); \
		SWIG_exception(_converted_type, _e.getMessage().c_str()); \
	}

#define _FIFE_DIRECTOR_EXC_HANDLER() \
	catch (Swig::DirectorException &) { \
		PyErr_Clear(); \
		SWIG_exception(SWIG_RuntimeError, "Catched director exception"); \
	}
%}

%feature("director:except") {
	if ($$error != NULL) {
		handleDirectorException();
		throw Swig::DirectorMethodException();
	}
}

%exception {
	try {
		$$action
	}
	_FIFE_DIRECTOR_EXC_HANDLER()
	_FIFE_EXC_HANDLER(Exception, SWIG_RuntimeError)
}

$inclusions

%include engine/swigwrappers/python/extensions.i.templ