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mi_module_wrapper.cpp
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261 lines (222 loc) · 7.18 KB
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
#include "mi_module_wrapper.hpp"
#include "mi_wrapper.hpp"
#include "mi_context.hpp"
#include "mi_schema_wrapper.hpp"
#include "functor.hpp"
#include <cassert>
namespace
{
typedef util::function_holder<scx::Load_Unload_Functor,
int,
scx::MI_Module::Ptr const&,
scx::MI_Context::Ptr const&> LoadFNHolder_t;
typedef util::function_holder<scx::Load_Unload_Functor,
int,
scx::MI_Module::Ptr const&,
scx::MI_Context::Ptr const&> UnloadFNHolder_t;
}
namespace scx
{
/*static*/ char const MI_Module_Wrapper::NAME[] = "MI_Module";
/*static*/ char const MI_Module_Wrapper::OMI_NAME[] = "omi.MI_Module";
/*static*/ char const MI_Module_Wrapper::DOC[] = "omi.MI_Module utility";
/*static*/ PyTypeObject MI_Module_Wrapper::s_PyTypeObject = {};
/*static*/ void
MI_Module_Wrapper::moduleInit (
PyObject* const pModule)
{
SCX_BOOKEND ("MI_Module_Wrapper::moduleInit");
Zero_PyTypeObject (&s_PyTypeObject);
s_PyTypeObject.tp_name = OMI_NAME;
s_PyTypeObject.tp_basicsize = sizeof (MI_Module_Wrapper);
s_PyTypeObject.tp_dealloc = dealloc;
s_PyTypeObject.tp_flags = Py_TPFLAGS_DEFAULT;
s_PyTypeObject.tp_doc = DOC;
s_PyTypeObject.tp_init = init;
s_PyTypeObject.tp_new = newObj;
s_PyTypeObject.tp_alloc = PyType_GenericAlloc;
if (0 == PyType_Ready (&s_PyTypeObject))
{
Py_INCREF (&s_PyTypeObject);
PyModule_AddObject (
pModule, NAME, reinterpret_cast<PyObject*>(&s_PyTypeObject));
}
}
/*static*/ void
MI_Module_Wrapper::dealloc (
PyObject* pObj)
{
//SCX_BOOKEND ("MI_Module_Wrapper::dealloc");
if (NULL != pObj)
{
MI_Module_Wrapper* pDecl =
reinterpret_cast<MI_Module_Wrapper*>(pObj);
pDecl->~MI_Module_Wrapper ();
Py_TYPE(pDecl)->tp_free (pObj);
}
}
PyObject*
MI_Module_Wrapper::newObj (
PyTypeObject* pType,
PyObject* args,
PyObject* keywords)
{
//SCX_BOOKEND ("MI_Module_Wrapper::newObj");
PyObject* pObj = pType->tp_alloc (pType, 0);
return pObj;
}
int
MI_Module_Wrapper::init (
PyObject* pSelf,
PyObject* args,
PyObject* keywords)
{
SCX_BOOKEND ("MI_Module_Wrapper::init");
char const* KEYWORDS[] = {
"schemaDecl",
"load",
"unload",
NULL
};
int rval = -1;
PyObject* pSchemaDeclObj = NULL;
PyObject* pLoadObj = NULL;
PyObject* pUnloadObj = NULL;
if (PyArg_ParseTupleAndKeywords (
args, keywords, "OOO", const_cast<char **>(KEYWORDS),
&pSchemaDeclObj, &pLoadObj, &pUnloadObj))
{
SCX_BOOKEND_PRINT ("PyArg_ParseTupleAndKeywords succeeded");
if (PyObject_TypeCheck (
pSchemaDeclObj,
const_cast<PyTypeObject*>(
MI_SchemaDecl_Placeholder::getPyTypeObject ())))
{
if (PyCallable_Check (pLoadObj) &&
PyCallable_Check (pUnloadObj))
{
std::ostringstream strm;
strm << "MI_SchemaDecl_Placeholder address: " << std::hex
<< static_cast<void*>(pSchemaDeclObj);
SCX_BOOKEND_PRINT (strm.str ());
strm.str ("");
strm.clear ();
MI_SchemaDecl_Placeholder::ConstPtr pSchemaDecl_PH (
reinterpret_cast<MI_SchemaDecl_Placeholder*>(pSchemaDeclObj));
MI_Module::LoadFn::Ptr pLoadFn (
new LoadFNHolder_t (
Load_Unload_Functor (
py_ptr<PyObject> (pLoadObj, DO_NOT_INC_REF))));
MI_Module::UnloadFn::Ptr pUnloadFn (
new UnloadFNHolder_t (
Load_Unload_Functor (
py_ptr<PyObject> (pUnloadObj, DO_NOT_INC_REF))));
MI_Module_Wrapper* pModule =
reinterpret_cast<MI_Module_Wrapper*>(pSelf);
new (const_cast<MI_SchemaDecl_Placeholder::ConstPtr*>(
&(pModule->m_pSchemaDecl_PH)))
MI_SchemaDecl_Placeholder::ConstPtr (pSchemaDecl_PH);
new (const_cast<MI_Module::LoadFn::Ptr*>(&(pModule->m_pLoadFn)))
MI_Module::LoadFn::Ptr (pLoadFn);
new (const_cast<MI_Module::UnloadFn::Ptr*>(&(pModule->m_pUnloadFn)))
MI_Module::UnloadFn::Ptr (pUnloadFn);
new (&(pModule->m_pModule)) MI_Module::Ptr ();
rval = 0;
}
else
{
SCX_BOOKEND_PRINT ("pLoadObj ot pUnloadObj are not callable");
}
}
else
{
SCX_BOOKEND_PRINT ("pSchemaDeclObj is not MI_SchemaDecl_Placeholder");
}
}
else
{
SCX_BOOKEND_PRINT ("PyArg_ParseTupleAndKeywords failed");
}
return rval;
}
/*static*/ PyTypeObject const*
MI_Module_Wrapper::getPyTypeObject ()
{
return &s_PyTypeObject;
}
/*static*/
MI_Module_Wrapper::PyPtr
MI_Module_Wrapper::createPyPtr (
MI_Module::Ptr const& pModule)
{
SCX_BOOKEND ("MI_Module::createPyPtr");
PyObjPtr pModuleObj (s_PyTypeObject.tp_alloc (&s_PyTypeObject, 0));
if (pModuleObj)
{
return PyPtr (
new (pModuleObj.release ()) MI_Module_Wrapper (pModule));
}
return PyPtr ();
}
/*dtor*/
MI_Module_Wrapper::~MI_Module_Wrapper ()
{
SCX_BOOKEND ("MI_Module_Wrapper::dtor");
}
MI_Module::Ptr const&
MI_Module_Wrapper::createModule (
PyObject* const pPyModule)
{
SCX_BOOKEND ("MI_Module_Wrapper::createModule");
assert (0 != pPyModule);
if (!m_pModule)
{
if (m_pSchemaDecl_PH)
{
SCX_BOOKEND_PRINT ("m_pSchemaDecl_PH is not NULL");
}
else
{
SCX_BOOKEND_PRINT ("m_pSchemaDecl_PH is NULL");
}
std::ostringstream strm;
strm << "MI_SchemaDecl_Placeholder address: " << std::hex
<< static_cast<const void*>(m_pSchemaDecl_PH.get ());
SCX_BOOKEND_PRINT (strm.str ());
strm.str ("");
strm.clear ();
MI_SchemaDecl::Ptr pSchemaDecl =
m_pSchemaDecl_PH->createSchemaDecl (pPyModule);
if (pSchemaDecl)
{
SCX_BOOKEND_PRINT ("MI_SchemaDecl creation succeeded");
m_pModule = new MI_Module (pSchemaDecl, m_pLoadFn, m_pUnloadFn);
}
else
{
SCX_BOOKEND_PRINT ("MI_SchemaDecl creation failed");
}
}
return m_pModule;
}
/*ctor*/
MI_Module_Wrapper::MI_Module_Wrapper (
MI_SchemaDecl_Placeholder::ConstPtr const& pSchemaDecl_PH,
MI_Module::LoadFn::Ptr const& pLoadFn,
MI_Module::UnloadFn::Ptr const& pUnloadFn)
: m_pSchemaDecl_PH (pSchemaDecl_PH)
, m_pLoadFn (pLoadFn)
, m_pUnloadFn (pUnloadFn)
{
SCX_BOOKEND ("MI_Module_Wrapper::ctor (MI_Schema, LoadFn, UnloadFn)");
}
/*ctor*/
MI_Module_Wrapper::MI_Module_Wrapper (
MI_Module::Ptr const& pModule)
: m_pModule (pModule)
{
SCX_BOOKEND ("MI_Module_Wrapper::ctor (MI_Module)");
}
} // namespace scx