EmbeddedPkg: Extend NvVarStoreFormattedLib LIBRARY_CLASS

[mirror_edk2.git] / AppPkg / Applications / Python / Python-2.7.2 / Modules / _weakref.c

#include "Python.h"\r
\r
\r
#define GET_WEAKREFS_LISTPTR(o) \\r
        ((PyWeakReference **) PyObject_GET_WEAKREFS_LISTPTR(o))\r
\r
\r
PyDoc_STRVAR(weakref_getweakrefcount__doc__,\r
"getweakrefcount(object) -- return the number of weak references\n"\r
"to 'object'.");\r
\r
static PyObject *\r
weakref_getweakrefcount(PyObject *self, PyObject *object)\r
{\r
    PyObject *result = NULL;\r
\r
    if (PyType_SUPPORTS_WEAKREFS(Py_TYPE(object))) {\r
        PyWeakReference **list = GET_WEAKREFS_LISTPTR(object);\r
\r
        result = PyInt_FromSsize_t(_PyWeakref_GetWeakrefCount(*list));\r
    }\r
    else\r
        result = PyInt_FromLong(0);\r
\r
    return result;\r
}\r
\r
\r
PyDoc_STRVAR(weakref_getweakrefs__doc__,\r
"getweakrefs(object) -- return a list of all weak reference objects\n"\r
"that point to 'object'.");\r
\r
static PyObject *\r
weakref_getweakrefs(PyObject *self, PyObject *object)\r
{\r
    PyObject *result = NULL;\r
\r
    if (PyType_SUPPORTS_WEAKREFS(Py_TYPE(object))) {\r
        PyWeakReference **list = GET_WEAKREFS_LISTPTR(object);\r
        Py_ssize_t count = _PyWeakref_GetWeakrefCount(*list);\r
\r
        result = PyList_New(count);\r
        if (result != NULL) {\r
            PyWeakReference *current = *list;\r
            Py_ssize_t i;\r
            for (i = 0; i < count; ++i) {\r
                PyList_SET_ITEM(result, i, (PyObject *) current);\r
                Py_INCREF(current);\r
                current = current->wr_next;\r
            }\r
        }\r
    }\r
    else {\r
        result = PyList_New(0);\r
    }\r
    return result;\r
}\r
\r
\r
PyDoc_STRVAR(weakref_proxy__doc__,\r
"proxy(object[, callback]) -- create a proxy object that weakly\n"\r
"references 'object'.  'callback', if given, is called with a\n"\r
"reference to the proxy when 'object' is about to be finalized.");\r
\r
static PyObject *\r
weakref_proxy(PyObject *self, PyObject *args)\r
{\r
    PyObject *object;\r
    PyObject *callback = NULL;\r
    PyObject *result = NULL;\r
\r
    if (PyArg_UnpackTuple(args, "proxy", 1, 2, &object, &callback)) {\r
        result = PyWeakref_NewProxy(object, callback);\r
    }\r
    return result;\r
}\r
\r
\r
static PyMethodDef\r
weakref_functions[] =  {\r
    {"getweakrefcount", weakref_getweakrefcount,        METH_O,\r
     weakref_getweakrefcount__doc__},\r
    {"getweakrefs",     weakref_getweakrefs,            METH_O,\r
     weakref_getweakrefs__doc__},\r
    {"proxy",           weakref_proxy,                  METH_VARARGS,\r
     weakref_proxy__doc__},\r
    {NULL, NULL, 0, NULL}\r
};\r
\r
\r
PyMODINIT_FUNC\r
init_weakref(void)\r
{\r
    PyObject *m;\r
\r
    m = Py_InitModule3("_weakref", weakref_functions,\r
                       "Weak-reference support module.");\r
    if (m != NULL) {\r
        Py_INCREF(&_PyWeakref_RefType);\r
        PyModule_AddObject(m, "ref",\r
                           (PyObject *) &_PyWeakref_RefType);\r
        Py_INCREF(&_PyWeakref_RefType);\r
        PyModule_AddObject(m, "ReferenceType",\r
                           (PyObject *) &_PyWeakref_RefType);\r
        Py_INCREF(&_PyWeakref_ProxyType);\r
        PyModule_AddObject(m, "ProxyType",\r
                           (PyObject *) &_PyWeakref_ProxyType);\r
        Py_INCREF(&_PyWeakref_CallableProxyType);\r
        PyModule_AddObject(m, "CallableProxyType",\r
                           (PyObject *) &_PyWeakref_CallableProxyType);\r
    }\r
}\r