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Commit 6e88b070 authored by chris's avatar chris
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Copyright stuff added

parent b83c08a1
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Showing with 187 additions and 166 deletions
lib/Components/cPickle/cPickle.c
View file @ 6e88b070
/*
$Id: cPickle.c,v 1.8 1997/01/02 22:00:47 chris Exp $
Copyright
Copyright 1996 Digital Creations, L.C., 910 Princess Anne
Street, Suite 300, Fredericksburg, Virginia 22401 U.S.A. All
rights reserved. Copyright in this software is owned by DCLC,
unless otherwise indicated. Permission to use, copy and
distribute this software is hereby granted, provided that the
above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear. Note that
any product, process or technology described in this software
may be the subject of other Intellectual Property rights
reserved by Digital Creations, L.C. and are not licensed
hereunder.
Trademarks
Digital Creations & DCLC, are trademarks of Digital Creations, L.C..
All other trademarks are owned by their respective companies.
No Warranty
The software is provided "as is" without warranty of any kind,
either express or implied, including, but not limited to, the
implied warranties of merchantability, fitness for a particular
purpose, or non-infringement. This software could include
technical inaccuracies or typographical errors. Changes are
periodically made to the software; these changes will be
incorporated in new editions of the software. DCLC may make
improvements and/or changes in this software at any time
without notice.
Limitation Of Liability
In no event will DCLC be liable for direct, indirect, special,
incidental, economic, cover, or consequential damages arising
out of the use of or inability to use this software even if
advised of the possibility of such damages. Some states do not
allow the exclusion or limitation of implied warranties or
limitation of liability for incidental or consequential
damages, so the above limitation or exclusion may not apply to
you.
If you have questions regarding this software,
contact:
Jim Fulton, jim@digicool.com
Digital Creations L.C.
(540) 371-6909
*/
static char cPickle_module_documentation[] =
""
;
......@@ -62,15 +116,11 @@ PyTypeObject *BuiltinFunctionType;
/* atol function from string module */
static PyObject *atol_func;
/* the pickle module */
static PyObject *pickle_module;
static PyObject *PicklingError;
static PyObject *UnpicklingError;
static PyObject *class_map;
static PyObject *empty_list, *empty_tuple;
static PyObject *StopErr;
static PyObject *save();
......@@ -156,6 +206,13 @@ write_other(ARG(Picklerobject *, self), ARG(char *, s), ARG(int, n))
UNLESS(py_str = PyString_FromStringAndSize(s, n))
return -1;
UNLESS(self->arg)
UNLESS(self->arg = PyTuple_New(1))
{
Py_DECREF(py_str);
return -1;
}
if (PyTuple_SetItem(self->arg, 0, py_str) == -1)
{
Py_DECREF(py_str);
......@@ -222,7 +279,7 @@ readline_file(ARG(Unpicklerobject *, self), ARG(char **, s))
{
str[i] = 0;
*s = str;
return i - 1;
return i;
}
}
......@@ -299,6 +356,13 @@ read_other(ARG(Unpicklerobject *, self), ARG(char **, s), ARG(int, n))
return -1;
}
UNLESS(self->arg)
UNLESS(self->arg = PyTuple_New(1))
{
Py_DECREF(bytes);
return -1;
}
if (PyTuple_SetItem(self->arg, 0, bytes) == -1)
{
Py_DECREF(bytes);
......@@ -373,7 +437,7 @@ put(ARG(Picklerobject *, self), ARG(PyObject *, ob))
if (!self->bin || (p >= 256))
{
c_str[0] = PUT;
sprintf(c_str + 1, "%d\n", PyDict_Size(self->memo));
sprintf(c_str + 1, "%d\n", p);
len = strlen(c_str);
}
else
......@@ -1196,6 +1260,10 @@ save(ARG(Picklerobject *, self), ARG(PyObject *, args))
PyObject *pid;
int size;
UNLESS(self->arg)
UNLESS(self->arg = PyTuple_New(1))
return NULL;
if (PyTuple_SetItem(self->arg, 0, args) == -1)
return NULL;
Py_INCREF(args);
......@@ -1453,12 +1521,10 @@ newPicklerobject(ARG(PyObject *, file), ARG(int, bin))
ARGDECL(int, bin)
{
Picklerobject *self;
PyObject *memo = 0, *arg = 0;
PyObject *memo = 0;
UNLESS(memo = PyDict_New()) goto err;
UNLESS(arg = PyTuple_New(1)) goto err;
UNLESS(self = PyObject_NEW(Picklerobject, &Picklertype))
goto err;
......@@ -1492,7 +1558,7 @@ newPicklerobject(ARG(PyObject *, file), ARG(int, bin))
self->file = file;
self->bin = bin;
self->memo = memo;
self->arg = arg;
self->arg = NULL;
self->pers_func = NULL;
return self;
......@@ -1500,7 +1566,6 @@ newPicklerobject(ARG(PyObject *, file), ARG(int, bin))
err:
Py_XDECREF((PyObject *)self);
Py_XDECREF(memo);
Py_XDECREF(arg);
return NULL;
}
......@@ -1622,7 +1687,7 @@ find_class(ARG(char *, module_name), ARG(char *, class_name))
ARGDECL(char *, class_name)
{
PyObject *import = 0, *class = 0, *py_module_name = 0, *py_class_name = 0,
*d = 0;
*t = 0;
char *error_str;
int has_key;
......@@ -1632,31 +1697,32 @@ find_class(ARG(char *, module_name), ARG(char *, class_name))
UNLESS(py_class_name = PyString_FromString(class_name))
goto err;
if ((has_key = PyMapping_HasKey(class_map, py_module_name)) == -1)
UNLESS(t = PyTuple_New(2))
goto err;
UNLESS(PyTuple_SET_ITEM((PyTupleObject *)t, 0, py_module_name))
goto err;
Py_INCREF(py_module_name);
UNLESS(PyTuple_SET_ITEM((PyTupleObject *)t, 1, py_class_name))
goto err;
Py_INCREF(py_module_name);
if ((has_key = PyMapping_HasKey(class_map, t)) == -1)
goto err;
if (has_key)
{
UNLESS(d = PyDict_GetItem(class_map, py_module_name))
goto err;
Py_INCREF(d);
if ((has_key = PyMapping_HasKey(d, py_class_name)) == -1)
UNLESS(class = PyDict_GetItem(class_map, t))
goto err;
if (has_key)
{
UNLESS(class = PyDict_GetItem(d, py_class_name))
goto err;
Py_INCREF(class);
Py_INCREF(class);
Py_DECREF(d);
Py_DECREF(py_module_name);
Py_DECREF(py_class_name);
Py_DECREF(py_module_name);
Py_DECREF(py_class_name);
Py_DECREF(t);
return class;
}
return class;
}
if (!(import = PyImport_ImportModule(module_name)) ||
......@@ -1696,19 +1762,10 @@ find_class(ARG(char *, module_name), ARG(char *, class_name))
goto err;
}
UNLESS(d)
{
UNLESS(d = PyDict_New())
goto err;
}
if (PyDict_SetItem(d, py_class_name, class) == -1)
if (PyDict_SetItem(class_map, t, class) == -1)
goto err;
if (PyDict_SetItem(class_map, py_module_name, d) == -1)
goto err;
Py_DECREF(d);
Py_DECREF(t);
Py_DECREF(py_module_name);
Py_DECREF(py_class_name);
Py_DECREF(import);
......@@ -1718,7 +1775,7 @@ find_class(ARG(char *, module_name), ARG(char *, class_name))
err:
Py_XDECREF(import);
Py_XDECREF(class);
Py_XDECREF(d);
Py_XDECREF(t);
Py_XDECREF(py_module_name);
Py_XDECREF(py_class_name);
......@@ -2561,6 +2618,10 @@ load_persid(ARG(Unpicklerobject *, self), ARG(PyObject *, args))
free(s);
UNLESS(self->arg)
UNLESS(self->arg = PyTuple_New(1))
goto err;
if (PyTuple_SetItem(self->arg, 0, pid) == -1)
goto err;
Py_INCREF(pid);
......@@ -2805,7 +2866,7 @@ load_append(ARG(Unpicklerobject *, self), ARG(PyObject *, args))
ARGDECL(Unpicklerobject *, self)
ARGDECL(PyObject *, args)
{
PyObject *value = 0, *list = 0, *append_method = 0, *junk = 0;
PyObject *value = 0, *list = 0;
int len;
static PyObject *append_str = 0;
......@@ -2818,32 +2879,58 @@ load_append(ARG(Unpicklerobject *, self), ARG(PyObject *, args))
UNLESS(value = PyList_GetItem(self->stack, len - 1))
return NULL;
Py_INCREF(value);
if (DEL_LIST_SLICE(self->stack, len - 1, len) == -1)
return NULL;
goto err;
UNLESS(list = PyList_GetItem(self->stack, len - 2))
return NULL;
goto err;
UNLESS(append_method = PyObject_GetAttr(list, append_str))
return NULL;
if (PyList_Check(list))
{
if (PyList_Append(list, value) == -1)
goto err;
}
else
{
PyObject *append_method, *junk;
if (PyTuple_SetItem(self->arg, 0, value) == -1)
goto err;
Py_INCREF(value);
UNLESS(append_method = PyObject_GetAttr(list, append_str))
return NULL;
UNLESS(junk = PyObject_CallObject(append_method, self->arg))
goto err;
Py_DECREF(junk);
UNLESS(self->arg)
UNLESS(self->arg = PyTuple_New(1))
{
Py_DECREF(append_method);
goto err;
}
if (PyTuple_SetItem(self->arg, 0, value) == -1)
{
Py_DECREF(append_method);
goto err;
}
Py_INCREF(value);
UNLESS(junk = PyObject_CallObject(append_method, self->arg))
{
Py_DECREF(append_method);
goto err;
}
Py_DECREF(junk);
Py_DECREF(append_method);
Py_DECREF(append_method);
}
Py_DECREF(value);
Py_INCREF(Py_None);
return Py_None;
err:
Py_XDECREF(append_method);
Py_XDECREF(value);
return NULL;
}
......@@ -2895,8 +2982,8 @@ load_build(ARG(Unpicklerobject *, self), ARG(PyObject *, args))
ARGDECL(Unpicklerobject *, self)
ARGDECL(PyObject *, args)
{
PyObject *value = 0, *inst = 0, *instdict = 0, *keys = 0,
*this_key = 0, *this_value = 0, *junk = 0;
PyObject *value = 0, *inst = 0, *instdict = 0, *d_key = 0, *d_value = 0,
*junk = 0;
static PyObject *py_string__dict__;
int len, i;
......@@ -2909,6 +2996,7 @@ load_build(ARG(Unpicklerobject *, self), ARG(PyObject *, args))
UNLESS(value = PyList_GetItem(self->stack, len - 1))
goto err;
Py_INCREF(value);
if (DEL_LIST_SLICE(self->stack, len - 1, len) == -1)
goto err;
......@@ -2921,27 +3009,11 @@ load_build(ARG(Unpicklerobject *, self), ARG(PyObject *, args))
UNLESS(instdict = PyObject_GetAttr(inst, py_string__dict__))
goto err;
UNLESS(keys = PyDict_Keys(value))
goto err;
if ((len = PyObject_Length(keys)) == -1)
goto err;
for (i = 0; i < len; i++)
i = 0;
while (PyDict_Next(value, &i, &d_key, &d_value))
{
UNLESS(this_key = PyList_GET_ITEM((PyListObject *)keys, i))
if (PyObject_SetItem(instdict, d_key, d_value) == -1)
goto err;
UNLESS(this_value = PyObject_GetItem(value, this_key))
goto err;
if (PyObject_SetItem(instdict, this_key, this_value) == -1)
{
Py_DECREF(this_value);
goto err;
}
Py_DECREF(this_value);
}
}
else
......@@ -2951,15 +3023,15 @@ load_build(ARG(Unpicklerobject *, self), ARG(PyObject *, args))
Py_DECREF(junk);
}
Py_DECREF(value);
Py_XDECREF(instdict);
Py_XDECREF(keys);
Py_INCREF(Py_None);
return Py_None;
err:
Py_XDECREF(value);
Py_XDECREF(instdict);
Py_XDECREF(keys);
return NULL;
}
......@@ -2975,7 +3047,17 @@ load_mark(ARG(Unpicklerobject *, self), ARG(PyObject *, args))
if ((len = PyList_Size(self->stack)) == -1)
return NULL;
if ((self->num_marks + 1) > self->marks_size)
if (!self->num_marks)
{
UNLESS(self->marks = (int *)malloc(20 * sizeof(int)))
{
PyErr_SetString(PyExc_MemoryError, "out of memory");
return NULL;
}
self->marks_size = 20;
}
else if ((self->num_marks + 1) > self->marks_size)
{
UNLESS(self->marks = (int *)realloc(self->marks, (self->marks_size + 20) * sizeof(int)))
{
......@@ -3021,6 +3103,7 @@ Unpickler_load(ARG(Unpicklerobject *, self), ARG(PyObject *, args))
goto err;
self->stack = stack;
self->num_marks = 0;
while (1)
{
......@@ -3215,7 +3298,7 @@ Unpickler_load(ARG(Unpicklerobject *, self), ARG(PyObject *, args))
break;
}
if ((err = PyErr_Occurred()) == PyExc_EOFError)
if ((err = PyErr_Occurred()) == PyExc_EOFError)
{
return load_eof(self, NULL);
}
......@@ -3228,7 +3311,6 @@ Unpickler_load(ARG(Unpicklerobject *, self), ARG(PyObject *, args))
UNLESS(val = PyList_GetItem(self->stack, len - 1))
return NULL;
Py_INCREF(val);
if (DEL_LIST_SLICE(self->stack, len - 1, len) == -1)
......@@ -3278,20 +3360,11 @@ newUnpicklerobject(ARG(PyObject *, f))
ARGDECL(PyObject *, f)
{
Unpicklerobject *self;
PyObject *readline = 0, *read = 0, *memo = 0, *arg = 0;
PyObject *memo = 0;
UNLESS(readline = PyObject_GetAttrString(f, "readline"))
return NULL;
UNLESS(read = PyObject_GetAttrString(f, "read"))
goto err;
UNLESS(memo = PyDict_New())
goto err;
UNLESS(arg = PyTuple_New(1))
goto err;
UNLESS(self = PyObject_NEW(Unpicklerobject, &Unpicklertype)) goto err;
if (PyFile_Check(f))
......@@ -3299,27 +3372,43 @@ newUnpicklerobject(ARG(PyObject *, f))
self->fp = PyFile_AsFile(f);
self->read_func = read_file;
self->readline_func = readline_file;
self->read = NULL;
self->readline = NULL;
}
else if (PycStringIO_InputCheck(f))
{
self->fp = NULL;
self->read_func = read_cStringIO;
self->readline_func = readline_cStringIO;
self->read = NULL;
self->readline = NULL;
}
else
{
PyObject *readline, *read;
self->fp = NULL;
self->read_func = read_other;
self->readline_func = readline_other;
UNLESS(readline = PyObject_GetAttrString(f, "readline"))
goto err;
UNLESS(read = PyObject_GetAttrString(f, "read"))
{
Py_DECREF(readline);
goto err;
}
self->read = read;
self->readline = readline;
}
Py_INCREF(f);
self->file = f;
self->readline = readline;
self->read = read;
self->memo = memo;
self->arg = arg;
self->arg = NULL;
self->stack = NULL;
self->pers_func = NULL;
self->marks = NULL;
......@@ -3329,10 +3418,9 @@ newUnpicklerobject(ARG(PyObject *, f))
return self;
err:
Py_XDECREF(readline);
Py_XDECREF(read);
Py_XDECREF(memo);
Py_XDECREF(arg);
Py_XDECREF((PyObject *)self);
return NULL;
}
......@@ -3359,6 +3447,7 @@ Unpickler_dealloc(ARG(Unpicklerobject *, self))
Py_XDECREF(self->memo);
Py_XDECREF(self->stack);
Py_XDECREF(self->pers_func);
Py_XDECREF(self->arg);
free(self->marks);
PyMem_DEL(self);
}
......@@ -3556,7 +3645,7 @@ static PyTypeObject Unpicklertype =
{
PyObject_HEAD_INIT(&PyType_Type)
0, /*ob_size*/
"Pickler", /*tp_name*/
"Unpickler", /*tp_name*/
sizeof(Unpicklerobject), /*tp_basicsize*/
0, /*tp_itemsize*/
/* methods */
......@@ -3591,71 +3680,11 @@ static struct PyMethodDef cPickle_methods[] =
};
static int
replace_pickle(ARG(PyObject *, pickle), ARG(PyObject *, cPickle))
ARGDECL(PyObject *, pickle)
ARGDECL(PyObject *, cPickle)
{
PyObject *replacement;
UNLESS(replacement = PyObject_GetAttrString(cPickle, "Pickler"))
return NULL;
if (PyObject_SetAttrString(pickle, "Pickler", replacement) == -1)
return NULL;
Py_DECREF(replacement);
UNLESS(replacement = PyObject_GetAttrString(cPickle, "Unpickler"))
return NULL;
if (PyObject_SetAttrString(pickle, "Unpickler", replacement) == -1)
return NULL;
Py_DECREF(replacement);
UNLESS(replacement = PyObject_GetAttrString(cPickle, "load"))
return NULL;
if (PyObject_SetAttrString(pickle, "load", replacement) == -1)
return NULL;
Py_DECREF(replacement);
UNLESS(replacement = PyObject_GetAttrString(cPickle, "loads"))
return NULL;
if (PyObject_SetAttrString(pickle, "loads", replacement) == -1)
return NULL;
Py_DECREF(replacement);
UNLESS(replacement = PyObject_GetAttrString(cPickle, "dump"))
return NULL;
if (PyObject_SetAttrString(pickle, "dump", replacement) == -1)
return NULL;
Py_DECREF(replacement);
UNLESS(replacement = PyObject_GetAttrString(cPickle, "dumps"))
return NULL;
if (PyObject_SetAttrString(pickle, "dumps", replacement) == -1)
return NULL;
Py_DECREF(replacement);
}
static int
init_stuff()
{
PyObject *builtins, *apply_func, *string;
UNLESS(pickle_module = PyImport_ImportModule("pickle"))
return NULL;
UNLESS(builtins = PyImport_ImportModule("__builtin__"))
return NULL;
......@@ -3691,11 +3720,6 @@ init_stuff()
UNLESS(UnpicklingError = PyString_FromString("cPickle.UnpicklingError"))
return NULL;
UNLESS(StopErr = PyString_FromStringAndSize(NULL, 1))
return NULL;
PyString_AS_STRING((PyStringObject *)StopErr)[0] == STOP;
PycString_IMPORT;
}
......@@ -3740,7 +3764,4 @@ initcPickle()
PyDict_SetItemString(d, "UnpicklingError", UnpicklingError);
CHECK_FOR_ERRORS("can't initialize module cPickle: error creating UnpicklingError");
replace_pickle(pickle_module, m);
CHECK_FOR_ERRORS("can't initialize module cPickle: cannot replace pickle attributes");
}
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