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-rw-r--r--Modules/cPickle.c151
1 files changed, 102 insertions, 49 deletions
diff --git a/Modules/cPickle.c b/Modules/cPickle.c
index b890b97..3e49387 100644
--- a/Modules/cPickle.c
+++ b/Modules/cPickle.c
@@ -53,13 +53,20 @@
*/
static char cPickle_module_documentation[] =
-""
+"C implementation and optimization of the Python pickle module\n"
+"\n"
+"$Id$\n"
;
#include "Python.h"
#include "cStringIO.h"
#include "mymath.h"
+#ifndef Py_eval_input
+#include <graminit.h>
+#define Py_eval_input eval_input
+#endif Py_eval_input
+
#include <errno.h>
#define UNLESS(E) if (!(E))
@@ -127,7 +134,7 @@ static PyObject *empty_tuple;
static PyObject *__class___str, *__getinitargs___str, *__dict___str,
*__getstate___str, *__setstate___str, *__name___str, *__reduce___str,
*write_str, *__safe_for_unpickling___str, *append_str,
- *read_str, *readline_str;
+ *read_str, *readline_str, *__main___str;
/* __builtins__ module */
static PyObject *builtins;
@@ -183,7 +190,7 @@ cPickle_PyMapping_HasKey(o, key)
{
PyObject *v;
- if (v = PyObject_GetItem(o,key))
+ if((v = PyObject_GetItem(o,key)))
{
Py_DECREF(v);
return 1;
@@ -276,6 +283,13 @@ write_cStringIO(Picklerobject *self, char *s, int n) {
static int
+write_none(Picklerobject *self, char *s, int n) {
+ if (s == NULL) return 0;
+ return n;
+}
+
+
+static int
write_other(Picklerobject *self, char *s, int n) {
PyObject *py_str = 0, *junk = 0;
int res = -1;
@@ -490,7 +504,7 @@ readline_other(Unpicklerobject *self, char **s) {
static char *
-my_strndup(char *s, int l)
+strndup(char *s, int l)
{
char *r;
UNLESS(r=malloc((l+1)*sizeof(char))) return (char*)PyErr_NoMemory();
@@ -618,7 +632,7 @@ whichmodule(PyObject *global, PyObject *global_name) {
PyObject *module = 0, *modules_dict = 0,
*global_name_attr = 0, *name = 0;
- if (module = PyDict_GetItem(class_map, global)) {
+ if ((module = PyDict_GetItem(class_map, global))) {
Py_INCREF(module);
return module;
}
@@ -630,7 +644,10 @@ whichmodule(PyObject *global, PyObject *global_name) {
return NULL;
i = 0;
- while (j = PyDict_Next(modules_dict, &i, &name, &module)) {
+ while ((j = PyDict_Next(modules_dict, &i, &name, &module))) {
+
+ if(PyObject_Compare(name, __main___str)==0) continue;
+
UNLESS(global_name_attr = PyObject_GetAttr(module, global_name)) {
PyErr_Clear();
continue;
@@ -645,12 +662,23 @@ whichmodule(PyObject *global, PyObject *global_name) {
break;
}
+
+ /* The following implements the rule in pickle.py added in 1.5
+ that used __main__ if no module is found. I don't actually
+ like this rule. jlf
+ */
+ if(!j) {
+ j=1;
+ name=__main___str;
+ }
+ /*
if (!j) {
PyErr_Format(PicklingError, "Could not find module for %s.",
"O", global_name);
return NULL;
}
+ */
PyDict_SetItem(class_map, global, name);
@@ -755,7 +783,7 @@ save_float(Picklerobject *self, PyObject *args) {
#ifdef FORMAT_1_3
if (self->bin) {
- int s, e, i = -1;
+ int s, e;
double f;
long fhi, flo;
char str[9], *p = str;
@@ -859,7 +887,7 @@ save_float(Picklerobject *self, PyObject *args) {
static int
-save_string(Picklerobject *self, PyObject *args) {
+save_string(Picklerobject *self, PyObject *args, int doput) {
int size, len;
size = PyString_Size(args);
@@ -913,9 +941,9 @@ save_string(Picklerobject *self, PyObject *args) {
return -1;
}
- if (size > 1)
- if (put(self, args) < 0)
- return -1;
+ if (doput)
+ if (put(self, args) < 0)
+ return -1;
return 0;
}
@@ -946,7 +974,7 @@ save_tuple(Picklerobject *self, PyObject *args) {
goto finally;
if (len) {
- if (has_key = cPickle_PyMapping_HasKey(self->memo, py_tuple_id) < 0)
+ if ((has_key = cPickle_PyMapping_HasKey(self->memo, py_tuple_id)) < 0)
goto finally;
if (has_key) {
@@ -1031,7 +1059,7 @@ save_list(Picklerobject *self, PyObject *args) {
goto finally;
}
- if (using_appends = (self->bin && (len > 1)))
+ if ((using_appends = (self->bin && (len > 1))))
if ((*self->write_func)(self, &MARKv, 1) < 0)
goto finally;
@@ -1096,7 +1124,7 @@ save_dict(Picklerobject *self, PyObject *args) {
goto finally;
}
- if (using_setitems = (self->bin && (PyDict_Size(args) > 1)))
+ if ((using_setitems = (self->bin && (PyDict_Size(args) > 1))))
if ((*self->write_func)(self, &MARKv, 1) < 0)
goto finally;
@@ -1147,7 +1175,7 @@ save_inst(Picklerobject *self, PyObject *args) {
goto finally;
}
- if (getinitargs_func = PyObject_GetAttr(args, __getinitargs___str)) {
+ if ((getinitargs_func = PyObject_GetAttr(args, __getinitargs___str))) {
PyObject *element = 0;
int i, len;
@@ -1207,7 +1235,7 @@ save_inst(Picklerobject *self, PyObject *args) {
goto finally;
}
- if (getstate_func = PyObject_GetAttr(args, __getstate___str)) {
+ if ((getstate_func = PyObject_GetAttr(args, __getstate___str))) {
UNLESS(state = PyObject_CallObject(getstate_func, empty_tuple))
goto finally;
}
@@ -1403,12 +1431,11 @@ save_reduce(Picklerobject *self, PyObject *callable,
return 0;
}
-
static int
save(Picklerobject *self, PyObject *args, int pers_save) {
PyTypeObject *type;
PyObject *py_ob_id = 0, *__reduce__ = 0, *t = 0, *arg_tup = 0,
- *callable = 0, *state = 0, *junk = 0;
+ *callable = 0, *state = 0;
int res = -1, tmp, size;
if (!pers_save && self->pers_func) {
@@ -1456,7 +1483,7 @@ save(Picklerobject *self, PyObject *args, int pers_save) {
case 's':
if ((type == &PyString_Type) && (PyString_Size(args) < 2)) {
- res = save_string(self, args);
+ res = save_string(self, args, 0);
goto finally;
}
}
@@ -1485,7 +1512,7 @@ save(Picklerobject *self, PyObject *args, int pers_save) {
switch (type->tp_name[0]) {
case 's':
if (type == &PyString_Type) {
- res = save_string(self, args);
+ res = save_string(self, args, 1);
goto finally;
}
@@ -1539,7 +1566,7 @@ save(Picklerobject *self, PyObject *args, int pers_save) {
}
}
- if (__reduce__ = PyDict_GetItem(dispatch_table, (PyObject *)type)) {
+ if ((__reduce__ = PyDict_GetItem(dispatch_table, (PyObject *)type))) {
Py_INCREF(__reduce__);
UNLESS(self->arg)
@@ -1556,7 +1583,7 @@ save(Picklerobject *self, PyObject *args, int pers_save) {
else {
PyErr_Clear();
- if (__reduce__ = PyObject_GetAttr(args, __reduce___str)) {
+ if ((__reduce__ = PyObject_GetAttr(args, __reduce___str))) {
UNLESS(t = PyObject_CallObject(__reduce__, empty_tuple))
goto finally;
}
@@ -1586,6 +1613,7 @@ save(Picklerobject *self, PyObject *args, int pers_save) {
}
callable = PyTuple_GET_ITEM(t, 0);
+
arg_tup = PyTuple_GET_ITEM(t, 1);
if (size > 2) {
@@ -1680,10 +1708,20 @@ dump_special(Picklerobject *self, PyObject *args) {
return Py_None;
}
+static PyObject *
+Pickle_clear_memo(Picklerobject *self, PyObject *args) {
+ if(self->memo) PyDict_Clear(self->memo);
+ Py_INCREF(Py_None);
+ return Py_None;
+}
static struct PyMethodDef Pickler_methods[] = {
- {"dump", (PyCFunction)Pickler_dump, 1, ""},
- {"dump_special", (PyCFunction)dump_special, 1, ""},
+ {"dump", (PyCFunction)Pickler_dump, 1,
+ "dump(object) -- Write an object in pickle format"},
+ {"dump_special", (PyCFunction)dump_special, 1,
+ ""},
+ {"clear_memo", (PyCFunction)Pickle_clear_memo, 1,
+ "clear_memo() -- Clear the picklers memp"},
{NULL, NULL} /* sentinel */
};
@@ -1720,6 +1758,9 @@ newPicklerobject(PyObject *file, int bin) {
else if (PycStringIO_OutputCheck(file)) {
self->write_func = write_cStringIO;
}
+ else if (file == Py_None) {
+ self->write_func = write_none;
+ }
else {
self->write_func = write_other;
@@ -1903,8 +1944,6 @@ find_class(PyObject *py_module_name, PyObject *py_class_name) {
char *module_name, *class_name;
PyObject *res = NULL;
- static PyObject *eval_dict = 0;
-
module_name = PyString_AS_STRING((PyStringObject *)py_module_name);
class_name = PyString_AS_STRING((PyStringObject *)py_class_name);
@@ -1917,7 +1956,7 @@ find_class(PyObject *py_module_name, PyObject *py_class_name) {
PyTuple_SET_ITEM((PyTupleObject *)t, 1, py_class_name);
Py_INCREF(py_class_name);
- if (class = PyDict_GetItem(class_map, t)) {
+ if ((class = PyDict_GetItem(class_map, t))) {
res = class;
Py_INCREF(class);
goto finally;
@@ -1974,7 +2013,7 @@ load_int(Unpicklerobject *self) {
long l;
if ((len = (*self->readline_func)(self, &s)) < 0) return -1;
- UNLESS(s=my_strndup(s,len)) return -1;
+ UNLESS(s=strndup(s,len)) return -1;
errno = 0;
l = strtol(s, &endptr, 0);
@@ -2081,10 +2120,8 @@ load_long(Unpicklerobject *self) {
char *end, *s;
int len, res = -1;
- static PyObject *arg = 0;
-
if ((len = (*self->readline_func)(self, &s)) < 0) return -1;
- UNLESS(s=my_strndup(s,len)) return -1;
+ UNLESS(s=strndup(s,len)) return -1;
UNLESS(l = PyLong_FromString(s, &end, 0))
goto finally;
@@ -2110,7 +2147,7 @@ load_float(Unpicklerobject *self) {
double d;
if ((len = (*self->readline_func)(self, &s)) < 0) return -1;
- UNLESS(s=my_strndup(s,len)) return -1;
+ UNLESS(s=strndup(s,len)) return -1;
errno = 0;
d = strtod(s, &endptr);
@@ -2220,7 +2257,7 @@ load_string(Unpicklerobject *self) {
static PyObject *eval_dict = 0;
if ((len = (*self->readline_func)(self, &s)) < 0) return -1;
- UNLESS(s=my_strndup(s,len)) return -1;
+ UNLESS(s=strndup(s,len)) return -1;
UNLESS(eval_dict)
UNLESS(eval_dict = Py_BuildValue("{s{}}", "__builtins__"))
@@ -2471,7 +2508,7 @@ Instance_New(PyObject *cls, PyObject *args)
PyObject *safe=0, *r=0;
if (PyClass_Check(cls))
- if(r=PyInstance_New(cls, args, NULL)) return r;
+ if((r=PyInstance_New(cls, args, NULL))) return r;
else goto err;
@@ -2486,13 +2523,14 @@ Instance_New(PyObject *cls, PyObject *args)
return NULL;
}
- if(r=PyObject_CallObject(cls, args)) return r;
+ if((r=PyObject_CallObject(cls, args))) return r;
+
err:
{
PyObject *tp, *v, *tb;
PyErr_Fetch(&tp, &v, &tb);
- if(r=Py_BuildValue("OOO",v,cls,args))
+ if((r=Py_BuildValue("OOO",v,cls,args)))
{
Py_XDECREF(v);
v=r;
@@ -3207,7 +3245,7 @@ finally:
static PyObject *
load(Unpicklerobject *self)
{
- PyObject *stack = 0, *err = 0, *exc = 0, *val = 0, *tb = 0;
+ PyObject *stack = 0, *err = 0, *val = 0;
int len;
char *s;
@@ -3777,6 +3815,7 @@ init_stuff(PyObject *module, PyObject *module_dict) {
INIT_STR(__getstate__);
INIT_STR(__setstate__);
INIT_STR(__name__);
+ INIT_STR(__main__);
INIT_STR(__reduce__);
INIT_STR(write);
INIT_STR(__safe_for_unpickling__);
@@ -3873,22 +3912,36 @@ initcPickle() {
/****************************************************************************
$Log$
- Revision 2.7 1997/05/16 16:36:52 guido
- Renamed strndup to my_strndup to avoid conflict witth GNU libc.
+ Revision 2.8 1997/08/13 03:14:37 guido
+ cPickle release 0.3 from Jim Fulton
+
+ Revision 1.41 1997/06/20 19:45:10 jim
+ Fixed dumb bug in __main__ fix. :-(
+
+ Revision 1.40 1997/06/19 18:57:36 jim
+ Added ident string.
+
+ Revision 1.39 1997/06/13 19:40:44 jim
+ - Various changes to make gcc -Wall -pedantic happy, including
+ extra parens elimination of unused vars.
+
+ - Added check to avoid pickling module __main__ for classes that are
+ defined in other modules, in whichmodule
+
+ - Changed to use Py_eval_input rather than eval_input.
- Revision 2.6 1997/05/13 18:00:44 guido
- Use compile-time test for 64-bit hardware instead of run-time test.
- This silences some compilers.
+ - Changed to use SIZEOF_LONG macro to avoid warnings on 32-bit machines.
- Revision 2.5 1997/05/07 17:46:13 guido
- Instead of importing graminit.h whenever one of the three grammar 'root'
- symbols is needed, define these in Python.h with a Py_ prefix.
+ - Added option of supplying None to pickler, which cases no data to be
+ written during pickling. This is slightly useful, in conjunction
+ with persistent_id attribute to find persistent sub-objects without
+ writing a pickle.
- Revision 2.4 1997/04/09 17:47:47 guido
- Give PyErr_Format a new name and make it static.
+ Revision 1.38 1997/05/07 17:06:43 jim
+ Added clear_memo method to pickler.
- Revision 2.3 1997/04/09 17:36:32 guido
- Jim Fulton's version 2.2.
+ Revision 1.37 1997/05/06 20:21:01 jim
+ Changed to only add strings to memo that have length greater than one.
Revision 1.36 1997/03/11 22:05:02 chris
write POP rather than POPMARK in non-binary mode
generated by cgit v0.12 at 2024-11-23 08:43:05 (GMT)