Commit Graph

189 Commits

Author SHA1 Message Date
Mark Dickinson a3ecd2c668 Issue #1672332: Fix unpickling of subnormal floats, which was raising
ValueError on some platforms as a result of the platform strtod setting
errno on underflow.
2009-01-24 16:40:29 +00:00
Martin v. Löwis 9ac4927125 Issue #4051: Prevent conflict of UNICODE macros in cPickle. 2009-01-02 20:40:14 +00:00
Alexandre Vassalotti f852bf97ef Fix issue #4730: cPickle corrupts high-unicode strings.
Update outdated copy of PyUnicode_EncodeRawUnicodeEscape.
Add a test case.
2008-12-27 07:08:47 +00:00
Amaury Forgeot d'Arc 69a9c5b539 Issue #4176: Pickle would crash the interpreter when a __reduce__ function
does not return an iterator for the 4th and 5th items.
(sequence-like and mapping-like state)

A list is not an iterator...

Will backport to 2.6 and 2.5.
2008-10-30 21:18:34 +00:00
Amaury Forgeot d'Arc 24cb382455 #3640: Correct a crash in cPickle on 64bit platforms, in the case of deeply nested lists or dicts.
Reviewed by Martin von Loewis.
2008-09-11 20:56:13 +00:00
Facundo Batista 763d309bba Fix #2702, with a correct accounting of recursion. 2008-06-30 01:10:55 +00:00
Facundo Batista 68dc052ca6 Reverting the patch from #3165, as it broke other
behaviours. I left the original test commented out (note
that that test came from #2702, which seems to have a
problem in FreeBSD and Windows, but not in Linux).

I included a new test, to watch over the now-broken
behaviour, I took it from #3179.
2008-06-25 19:24:53 +00:00
Thomas Heller b436a24eed Fix compilation on Windows. 2008-06-23 14:49:56 +00:00
Facundo Batista 9da18b3133 Fixing the problem stated in issue 2702 with the patch submitted
in the issue 3165. Now cPickle does not fails with uncontrolled
behaviour when pickling into a very deep nested structure.
2008-06-22 23:19:14 +00:00
Facundo Batista 1461886eee Issue 3164. Small fix to don't repeat a comparation
without necessity.
2008-06-22 15:27:10 +00:00
Gregory P. Smith 9d53457e59 Merge in release25-maint r60793:
Added checks for integer overflows, contributed by Google. Some are
 only available if asserts are left in the code, in cases where they
 can't be triggered from Python code.
2008-06-11 07:41:16 +00:00
Gregory P. Smith dd96db63f6 This reverts r63675 based on the discussion in this thread:
http://mail.python.org/pipermail/python-dev/2008-June/079988.html

Python 2.6 should stick with PyString_* in its codebase.  The PyBytes_* names
in the spirit of 3.0 are available via a #define only.  See the email thread.
2008-06-09 04:58:54 +00:00
Christian Heimes 593daf545b Renamed PyString to PyBytes 2008-05-26 12:51:38 +00:00
Georg Brandl dffbf5f542 Revert copy_reg -> copyreg rename. 2008-05-20 07:49:57 +00:00
Alexandre Vassalotti 3c4971c40e Added Python 3.0 warning to cPickle. 2008-05-16 19:14:31 +00:00
Alexandre Vassalotti 9510e4a9f8 Added module stub for copy_reg renaming in 3.0.
Renamed copy_reg to copyreg in the standard library, to avoid
spurious warnings and ease later merging to py3k branch. Public
documentation remains intact.
2008-05-11 08:25:28 +00:00
Gregory P. Smith c20adf8ef2 Use the new PyFile_IncUseCount & PyFile_DecUseCount calls appropriatly
within the standard library.  These modules use PyFile_AsFile and later
release the GIL while operating on the previously returned FILE*.
2008-04-07 06:33:21 +00:00
Christian Heimes e93237dfcc #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. 2007-12-19 02:37:44 +00:00
Neal Norwitz 5a29dd30e0 Fix Coverity #159.
This code was broken if save() returned a negative number since i contained
a boolean value and then we compared i < 0 which should never be true.

Will backport (assuming it's necessary)
2007-10-05 05:01:38 +00:00
Martin v. Löwis 6819210b9e PEP 3123: Provide forward compatibility with Python 3.0, while keeping
backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
PyVarObject_HEAD_INIT.
2007-07-21 06:55:02 +00:00
Kristján Valur Jónsson 17b8e97e2e Merge change 54909 from release25-maint: Fix several minor issues discovered using code analysis in VisualStudio 2005 Team Edition 2007-04-25 00:10:50 +00:00
Armin Rigo 7ccbca93a2 Forward-port of r52136,52138: a review of overflow-detecting code.
* unified the way intobject, longobject and mystrtoul handle
  values around -sys.maxint-1.

* in general, trying to entierely avoid overflows in any computation
  involving signed ints or longs is extremely involved.  Fixed a few
  simple cases where a compiler might be too clever (but that's all
  guesswork).

* more overflow checks against bad data in marshal.c.

* 2.5 specific: fixed a number of places that were still confusing int
  and Py_ssize_t.  Some of them could potentially have caused
  "real-world" breakage.

* list.pop(x): fixing overflow issues on x was messy.  I just reverted
  to PyArg_ParseTuple("n"), which does the right thing.  (An obscure
  test was trying to give a Decimal to list.pop()... doesn't make
  sense any more IMHO)

* trying to write a few tests...
2006-10-04 12:17:45 +00:00
Neal Norwitz 99dfe3c411 Prevent memory leak on error.
Reported by Klocwork #36
2006-08-02 04:27:11 +00:00
Neal Norwitz 98a96004f9 Fix memory leaks spotted by Klocwork #37. 2006-07-23 07:57:11 +00:00
Neal Norwitz b59d08c2fb Fix more memory allocation issues found with failmalloc. 2006-07-22 16:20:49 +00:00
Neal Norwitz 0f8b31a2da Fix bug #1512695: cPickle.loads could crash if it was interrupted with
a KeyboardInterrupt since PyTuple_Pack was passed a NULL.

Will backport.
2006-06-28 06:28:31 +00:00
Georg Brandl 96a8c3954c Make use of METH_O and METH_NOARGS where possible.
Use Py_UnpackTuple instead of PyArg_ParseTuple where possible.
2006-05-29 21:04:52 +00:00
Richard Jones 7b9558d37d Conversion of exceptions over from faked-up classes to new-style C types. 2006-05-27 12:29:24 +00:00
Georg Brandl 684fd0c8ec Replace PyObject_CallFunction calls with only object args
with PyObject_CallFunctionObjArgs, which is 30% faster.
2006-05-25 19:15:31 +00:00
Georg Brandl de9b624fb9 Bug #1473625: stop cPickle making float dumps locale dependent in protocol 0.
On the way, add a decorator to test_support to facilitate running single
test functions in different locales with automatic cleanup.
2006-04-30 11:13:56 +00:00
Thomas Wouters c6e55068ca Use Py_VISIT in all tp_traverse methods, instead of traversing manually or
using a custom, nearly-identical macro. This probably changes how some of
these functions are compiled, which may result in fractionally slower (or
faster) execution. Considering the nature of traversal, visiting much of the
address space in unpredictable patterns, I'd argue the code readability and
maintainability is well worth it ;P
2006-04-15 21:47:09 +00:00
Thomas Wouters edf17d8798 Use Py_CLEAR instead of in-place DECREF/XDECREF or custom macros, for
tp_clear methods.
2006-04-15 17:28:34 +00:00
Neal Norwitz b183a25c29 Fix some warnings on HP-UX when using cc/aCC 2006-04-10 01:03:32 +00:00
Martin v. Löwis 15e62742fa Revert backwards-incompatible const changes. 2006-02-27 16:46:16 +00:00
Martin v. Löwis 18e165558b Merge ssize_t branch. 2006-02-15 17:27:45 +00:00
Neal Norwitz 1ac754fa10 Check return result from Py_InitModule*(). This API can fail.
Probably should be backported.
2006-01-19 06:09:39 +00:00
Jeremy Hylton af68c874a6 Add const to several API functions that take char *.
In C++, it's an error to pass a string literal to a char* function
without a const_cast().  Rather than require every C++ extension
module to put a cast around string literals, fix the API to state the
const-ness.

I focused on parts of the API where people usually pass literals:
PyArg_ParseTuple() and friends, Py_BuildValue(), PyMethodDef, the type
slots, etc.  Predictably, there were a large set of functions that
needed to be fixed as a result of these changes.  The most pervasive
change was to make the keyword args list passed to
PyArg_ParseTupleAndKewords() to be a const char *kwlist[].

One cast was required as a result of the changes:  A type object
mallocs the memory for its tp_doc slot and later frees it.
PyTypeObject says that tp_doc is const char *; but if the type was
created by type_new(), we know it is safe to cast to char *.
2005-12-10 18:50:16 +00:00
Raymond Hettinger a6b45cc31d Eliminate the deprecated option to return None instead of a tuple of arguments in __reduce__(). 2004-12-07 07:05:57 +00:00
Martin v. Löwis 544f1195b1 Patch #995766: Keyword argument support in cPickle. 2004-07-27 05:22:33 +00:00
Martin v. Löwis 737ea82a5a Patch #774665: Make Python LC_NUMERIC agnostic. 2004-06-08 18:52:54 +00:00
Christian Tismer 2460c62152 made cPickle fall back to the copy_reg/reduce protocol,
if a function cannot be stored as global.
This is for compatibility with pickle.py .
2004-02-26 16:21:45 +00:00
Raymond Hettinger 8ae4689657 Simplify and speedup uses of Py_BuildValue():
* Py_BuildValue("(OOO)",a,b,c)  -->  PyTuple_Pack(3,a,b,c)
* Py_BuildValue("()",a)         -->  PyTuple_New(0)
* Py_BuildValue("O", a)         -->  Py_INCREF(a)
2003-10-12 19:09:37 +00:00
Jeremy Hylton fff093fa7f The Unpickler forget about its find_class attribute. 2003-07-11 19:42:49 +00:00
Jeremy Hylton f00368f9ed Remove many blanket try/except clauses.
SF bug [ 751276 ] cPickle doesn't raise error, pickle does (recursiondepth)

Most of the calls to PyErr_Clear() were intended to catch & clear an
attribute error and try something different.  Guard all those cases
with a PyErr_ExceptionMatches() and fail if some other error
occurred.  The other error is likely a bug in the user code.

This is basically the C equivalent of changing "except:" to
"except AttributeError:"
2003-06-16 20:19:49 +00:00
Tim Peters 3cfe75470d PyType_Ready(): Complain if the type is a base type, and gc'able, and
tp_free is NULL or PyObject_Del at the end.  Because it's a base type
it must call tp_free in its dealloc function, and because it's gc'able
it must not call PyObject_Del.

inherit_slots():  Don't inherit tp_free unless the type and its base
agree about whether they're gc'able.  If the type is gc'able and the
base is not, and the base uses the default PyObject_Del for its
tp_free, give the type PyObject_GC_Del for its tp_free (the appropriate
default for a gc'able type).

cPickle.c:  The Pickler and Unpickler types claim to be base classes
and gc'able, but their dealloc functions didn't call tp_free.
Repaired that.  Also call PyType_Ready() on these typeobjects, so
that the correct (PyObject_GC_Del) default memory-freeing function
gets plugged into these types' tp_free slots.
2003-05-21 21:29:48 +00:00
Jeremy Hylton 7b5ce7f25a Make Unpickler objects colletable.
Bugfix candidate.
2003-04-09 21:25:30 +00:00
Jeremy Hylton 4cf6319cd2 Make Picklers collectable.
Bug fix candidate.
2003-04-09 21:05:12 +00:00
Tim Peters 9905b943f7 New private API functions _PyFloat_{Pack,Unpack}(4,8}. This is a
refactoring to get all the duplicates of this delicate code out of the
cPickle and struct modules.
2003-03-20 20:53:32 +00:00
Tim Peters d50ade68ec SF bug 705836: struct.pack of floats in non-native endian order
pack_float, pack_double, save_float:  All the routines for creating
IEEE-format packed representations of floats and doubles simply ignored
that rounding can (in rare cases) propagate out of a long string of
1 bits.  At worst, the end-off carry can (by mistake) interfere with
the exponent value, and then unpacking yields a result wrong by a factor
of 2.  In less severe cases, it can end up losing more low-order bits
than intended, or fail to catch overflow *caused* by rounding.

Bugfix candidate, but I already backported this to 2.2.

In 2.3, this code remains in severe need of refactoring.
2003-03-20 18:32:13 +00:00
Guido van Rossum b289b87a37 Use __reduce_ex__. 2003-02-19 01:45:13 +00:00