OU
/
CWE-ou-minkata
mirror of https://foundry.openuru.org/gitblit/r/CWE-ou-minkata.git
2
1
Fork 0
Code Releases Activity
Browse Source

PEP 302 import hooks for python.pak and a Py_MARSHAL_VERSION fix

Adam Johnson 13 years ago
parent
dcfc93acbc
commit
243613a56a
3 changed files with 190 additions and 4 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 2
      Sources/Plasma/Apps/plPythonPack/PythonInterface.cpp
  2. 1
      Sources/Plasma/Apps/plPythonPack/main.cpp
  3. 191
      Sources/Plasma/FeatureLib/pfPython/cyPythonInterface.cpp

2
Sources/Plasma/Apps/plPythonPack/PythonInterface.cpp
Unescape View File

@ -144,7 +144,7 @@ hsBool PythonInterface::DumpObject(PyObject* pyobj, char** pickle, Int32* size)
#if (PY_MAJOR_VERSION == 2) && (PY_MINOR_VERSION < 4)
s = PyMarshal_WriteObjectToString(pyobj);
#else
s = PyMarshal_WriteObjectToString(pyobj, 0);
s = PyMarshal_WriteObjectToString(pyobj, Py_MARSHAL_VERSION);
#endif
// did it actually do it?
if ( s != NULL )

1
Sources/Plasma/Apps/plPythonPack/main.cpp
Unescape View File

@ -200,7 +200,6 @@ void WritePythonFile(const char *fileName, const char* path, hsStream *s)
if (chars_read > 0)
{
printf(errmsg);
printf("\n");
}
}

191
Sources/Plasma/FeatureLib/pfPython/cyPythonInterface.cpp
Unescape View File

@ -31,6 +31,7 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
// only be one instance of this interface.
//
#include "cyPythonInterface.h"
#include "plPythonPack.h"
#include "compile.h"
#include "marshal.h"
@ -822,6 +823,170 @@ PyObject *pyErrorRedirector::New()
PYTHON_CLASS_CHECK_IMPL(ptErrorRedirector, pyErrorRedirector)
PYTHON_CLASS_CONVERT_FROM_IMPL(ptErrorRedirector, pyErrorRedirector)
/////////////////////////////////////////////////////////////////////////////
// PEP 302 Import Hook
/////////////////////////////////////////////////////////////////////////////
#ifndef BUILDING_PYPLASMA
struct ptImportHook
{
PyObject_HEAD
};
// First three functions are just so I can be lazy
// and use the already existing macros to do my dirty
// work. I'm seriously lazy.
static PyObject* ptImportHook_new(PyTypeObject* type, PyObject* args, PyObject*)
{
ptImportHook* self = (ptImportHook*)type->tp_alloc(type, 0);
return (PyObject*)self;
}
PYTHON_NO_INIT_DEFINITION(ptImportHook)
static void ptImportHook_dealloc(ptImportHook *self)
{
self->ob_type->tp_free((PyObject*)self);
}
PYTHON_METHOD_DEFINITION(ptImportHook, find_module, args)
{
char* module_name;
PyObject* module_path;
if (!PyArg_ParseTuple(args, "s|O", &module_name, &module_path))
{
PyErr_SetString(PyExc_TypeError, "find_module expects string, string");
PYTHON_RETURN_ERROR;
}
// If this is set, we can't do it.
if (PyString_Check(module_path))
PYTHON_RETURN_NONE;
if (PythonPack::IsItPythonPacked(module_name))
{
Py_INCREF(self);
return (PyObject*)self;
}
else
PYTHON_RETURN_NONE;
}
PYTHON_METHOD_DEFINITION(ptImportHook, load_module, args)
{
char* module_name;
if (!PyArg_ParseTuple(args, "s", &module_name))
{
PyErr_SetString(PyExc_TypeError, "load_module expects string");
PYTHON_RETURN_ERROR;
}
// Grab sys.__dict__ so we can get started
PyObject* sys_mod = PyImport_ImportModule("sys");
PyObject* sys_dict = PyModule_GetDict(sys_mod);
Py_INCREF(sys_dict);
// We want to check sys.modules for the module first
// If it's not in there, we have to load the module
// and add it to the sys.modules dict for future reference,
// otherwise reload() will not work properly.
PyObject* result = nil;
PyObject* modules = PyDict_GetItemString(sys_dict, "modules");
Py_INCREF(modules);
hsAssert(PyDict_Check(modules), "sys.modules is not a dict");
if (result = PyDict_GetItemString(modules, module_name))
{
if (!PyModule_Check(result))
{
hsAssert(false, "PEP 302 hook found module in sys.modules, but it isn't a module! O.o");
result = nil;
PyErr_SetString(PyExc_TypeError, "module in sys.modules isn't a module");
}
}
else
{
if (PyObject* pyc = PythonPack::OpenPythonPacked(module_name))
{
result = PyImport_ExecCodeModule(module_name, pyc);
if (result == nil)
{
PyErr_Print();
}
else
{
PyModule_AddObject(result, "__loader__", (PyObject*)self);
PyDict_SetItemString(modules, module_name, result);
}
}
else
PyErr_SetString(PyExc_ImportError, "module not found in python.pak");
}
Py_DECREF(modules);
Py_DECREF(sys_dict);
if (result)
return result;
else
PYTHON_RETURN_ERROR;
}
PYTHON_START_METHODS_TABLE(ptImportHook)
PYTHON_METHOD(ptImportHook, find_module, "Params: module_name,package_path\nChecks to see if a given module exists (NOTE: package_path is not used!)"),
PYTHON_METHOD(ptImportHook, load_module, "Params: module_name \\nReturns the module given by module_name, if it exists in python.pak"),
PYTHON_END_METHODS_TABLE;
PYTHON_TYPE_START(ptImportHook)
0,
"Plasma.ptImportHook",
sizeof(ptImportHook), /* tp_basicsize */
0, /* tp_itemsize */
(destructor)ptImportHook_dealloc, /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_compare */
0, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
0, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
"PEP 302 Import Hook", /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
PYTHON_DEFAULT_METHODS_TABLE(ptImportHook), /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
PYTHON_DEFAULT_INIT(ptImportHook), /* tp_init */
0, /* tp_alloc */
ptImportHook_new /* tp_new */
PYTHON_TYPE_END;
void ptImportHook_AddPlasmaClasses(PyObject* m)
{
PYTHON_CLASS_IMPORT_START(m);
PYTHON_CLASS_IMPORT(m, ptImportHook);
PYTHON_CLASS_IMPORT_END(m);
}
#endif // BUILDING_PYPLASMA
/////////////////////////////////////////////////////////////////////////////
//
// Function : initPython
@ -956,7 +1121,6 @@ void PythonInterface::initPython()
return;
}
Py_DECREF(sys_dict);
Py_DECREF(path_list);
std::vector<PyMethodDef> methods; // this is temporary, for easy addition of new methods
@ -991,6 +1155,26 @@ void PythonInterface::initPython()
getOutputAndReset(&error);
}
#ifndef BUILDING_PYPLASMA
// Begin PEP 302 Import Hook stuff
// We need to create a ptImportHook object
ptImportHook* hook = PyObject_New(ptImportHook, &ptImportHook_type);
PyObject* metapath = PyDict_GetItemString(sys_dict, "meta_path");
Py_INCREF(metapath);
// Since PEP 302 is insane, let's be sure things are the way
// that we expect them to be. Silent failures != cool.
hsAssert(metapath != nil, "PEP 302: sys.__dict__['meta_path'] missing!");
hsAssert(PyList_Check(metapath), "PEP 302: sys.__dict__['meta_path'] is not a list!");
// Now that we have meta_path, add our hook to the list
PyList_Append(metapath, (PyObject*)hook);
Py_DECREF(metapath);
// And we're done!
#endif // BUILDING_PYPLASMA
Py_DECREF(sys_dict);
// initialize the PlasmaConstants module
PyMethodDef noMethods = {NULL};
plasmaConstantsMod = Py_InitModule("PlasmaConstants", &noMethods); // it has no methods, just values
@ -1279,6 +1463,9 @@ void PythonInterface::AddPlasmaClasses()
// AI
pyCritterBrain::AddPlasmaClasses(plasmaMod);
// Stupid thing
ptImportHook_AddPlasmaClasses(plasmaMod);
}
@ -1909,7 +2096,7 @@ hsBool PythonInterface::DumpObject(PyObject* pyobj, char** pickle, Int32* size)
#if (PY_MAJOR_VERSION == 2) && (PY_MINOR_VERSION < 4)
s = PyMarshal_WriteObjectToString(pyobj);
#else
s = PyMarshal_WriteObjectToString(pyobj, 0);
s = PyMarshal_WriteObjectToString(pyobj, Py_MARSHAL_VERSION);
#endif
// did it actually do it?

Write Preview
Loading…
Cancel
Save