cpython/Objects/tupleobject.c

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1991-02-19 20:39:46 +08:00
1990-10-14 20:07:46 +08:00
/* Tuple object implementation */
1997-05-02 11:12:38 +08:00
#include "Python.h"
#include "internal/pystate.h"
#include "accu.h"
1990-10-14 20:07:46 +08:00
/*[clinic input]
class tuple "PyTupleObject *" "&PyTuple_Type"
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=f051ba3cfdf9a189]*/
#include "clinic/tupleobject.c.h"
Patch by Charles G Waldman to avoid a sneaky memory leak in _PyTuple_Resize(). In addition, a change suggested by Jeremy Hylton to limit the size of the free lists is also merged into this patch. Charles wrote initially: """ Test Case: run the following code: class Nothing: def __len__(self): return 5 def __getitem__(self, i): if i < 3: return i else: raise IndexError, i def g(a,*b,**c): return for x in xrange(1000000): g(*Nothing()) and watch Python's memory use go up and up. Diagnosis: The analysis begins with the call to PySequence_Tuple at line 1641 in ceval.c - the argument to g is seen to be a sequence but not a tuple, so it needs to be converted from an abstract sequence to a concrete tuple. PySequence_Tuple starts off by creating a new tuple of length 5 (line 1122 in abstract.c). Then at line 1149, since only 3 elements were assigned, _PyTuple_Resize is called to make the 5-tuple into a 3-tuple. When we're all done the 3-tuple is decrefed, but rather than being freed it is placed on the free_tuples cache. The basic problem is that the 3-tuples are being added to the cache but never picked up again, since _PyTuple_Resize doesn't make use of the free_tuples cache. If you are resizing a 5-tuple to a 3-tuple and there is already a 3-tuple in free_tuples[3], instead of using this tuple, _PyTuple_Resize will realloc the 5-tuple to a 3-tuple. It would more efficient to use the existing 3-tuple and cache the 5-tuple. By making _PyTuple_Resize aware of the free_tuples (just as PyTuple_New), we not only save a few calls to realloc, but also prevent this misbehavior whereby tuples are being added to the free_tuples list but never properly "recycled". """ And later: """ This patch replaces my submission of Sun, 16 Apr and addresses Jeremy Hylton's suggestions that we also limit the size of the free tuple list. I chose 2000 as the maximum number of tuples of any particular size to save. There was also a problem with the previous version of this patch causing a core dump if Python was built with Py_TRACE_REFS. This is fixed in the below version of the patch, which uses tupledealloc instead of _Py_Dealloc. """
2000-04-22 05:15:05 +08:00
/* Speed optimization to avoid frequent malloc/free of small tuples */
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60568-60598,60600-60616 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60568 | christian.heimes | 2008-02-04 19:48:38 +0100 (Mon, 04 Feb 2008) | 1 line Increase debugging to investige failing tests on some build bots ........ r60570 | christian.heimes | 2008-02-04 20:30:05 +0100 (Mon, 04 Feb 2008) | 1 line Small adjustments for test compact freelist test. It's no passing on Windows as well. ........ r60573 | amaury.forgeotdarc | 2008-02-04 21:53:14 +0100 (Mon, 04 Feb 2008) | 2 lines Correct quotes in NEWS file ........ r60575 | amaury.forgeotdarc | 2008-02-04 22:45:05 +0100 (Mon, 04 Feb 2008) | 13 lines #1750076: Debugger did not step on every iteration of a while statement. The mapping between bytecode offsets and source lines (lnotab) did not contain an entry for the beginning of the loop. Now it does, and the lnotab can be a bit larger: in particular, several statements on the same line generate several entries. However, this does not bother the settrace function, which will trigger only one 'line' event. The lnotab seems to be exactly the same as with python2.4. ........ r60584 | amaury.forgeotdarc | 2008-02-05 01:26:21 +0100 (Tue, 05 Feb 2008) | 3 lines Change r60575 broke test_compile: there is no need to emit co_lnotab item when both offsets are zeros. ........ r60587 | skip.montanaro | 2008-02-05 03:32:16 +0100 (Tue, 05 Feb 2008) | 1 line sync with most recent version from python-mode sf project ........ r60588 | lars.gustaebel | 2008-02-05 12:51:40 +0100 (Tue, 05 Feb 2008) | 5 lines Issue #2004: Use mode 0700 for temporary directories and default permissions for missing directories. (will backport to 2.5) ........ r60590 | georg.brandl | 2008-02-05 13:01:24 +0100 (Tue, 05 Feb 2008) | 2 lines Convert external links to internal links. Fixes #2010. ........ r60592 | marc-andre.lemburg | 2008-02-05 15:50:40 +0100 (Tue, 05 Feb 2008) | 3 lines Keep distutils Python 2.1 compatible (or even Python 2.4 in this case). ........ r60593 | andrew.kuchling | 2008-02-05 17:06:57 +0100 (Tue, 05 Feb 2008) | 5 lines Update PEP URL. (This code is duplicated between pydoc and DocXMLRPCServer; maybe it should be refactored as a GHOP project.) 2.5.2 backport candidate. ........ r60596 | guido.van.rossum | 2008-02-05 18:32:15 +0100 (Tue, 05 Feb 2008) | 2 lines In the experimental 'Scanner' feature, the group count was set wrong. ........ r60602 | facundo.batista | 2008-02-05 20:03:32 +0100 (Tue, 05 Feb 2008) | 3 lines Issue 1951. Converts wave test cases to unittest. ........ r60603 | georg.brandl | 2008-02-05 20:07:10 +0100 (Tue, 05 Feb 2008) | 2 lines Actually run the test. ........ r60604 | skip.montanaro | 2008-02-05 20:24:30 +0100 (Tue, 05 Feb 2008) | 2 lines correct object name ........ r60605 | georg.brandl | 2008-02-05 20:58:17 +0100 (Tue, 05 Feb 2008) | 7 lines * Use the same code to profile for test_profile and test_cprofile. * Convert both to unittest. * Use the same unit testing code. * Include the expected output in both test files. * Make it possible to regenerate the expected output by running the file as a script with an '-r' argument. ........ r60613 | raymond.hettinger | 2008-02-06 02:49:00 +0100 (Wed, 06 Feb 2008) | 1 line Sync-up with Py3k work. ........ r60614 | christian.heimes | 2008-02-06 13:44:34 +0100 (Wed, 06 Feb 2008) | 1 line Limit free list of method and builtin function objects to 256 entries each. ........ r60616 | christian.heimes | 2008-02-06 14:33:44 +0100 (Wed, 06 Feb 2008) | 7 lines Unified naming convention for free lists and their limits. All free lists in Object/ are named ``free_list``, the counter ``numfree`` and the upper limit is a macro ``PyName_MAXFREELIST`` inside an #ifndef block. The chances should make it easier to adjust Python for platforms with less memory, e.g. mobile phones. ........
2008-02-06 22:31:34 +08:00
#ifndef PyTuple_MAXSAVESIZE
#define PyTuple_MAXSAVESIZE 20 /* Largest tuple to save on free list */
Patch by Charles G Waldman to avoid a sneaky memory leak in _PyTuple_Resize(). In addition, a change suggested by Jeremy Hylton to limit the size of the free lists is also merged into this patch. Charles wrote initially: """ Test Case: run the following code: class Nothing: def __len__(self): return 5 def __getitem__(self, i): if i < 3: return i else: raise IndexError, i def g(a,*b,**c): return for x in xrange(1000000): g(*Nothing()) and watch Python's memory use go up and up. Diagnosis: The analysis begins with the call to PySequence_Tuple at line 1641 in ceval.c - the argument to g is seen to be a sequence but not a tuple, so it needs to be converted from an abstract sequence to a concrete tuple. PySequence_Tuple starts off by creating a new tuple of length 5 (line 1122 in abstract.c). Then at line 1149, since only 3 elements were assigned, _PyTuple_Resize is called to make the 5-tuple into a 3-tuple. When we're all done the 3-tuple is decrefed, but rather than being freed it is placed on the free_tuples cache. The basic problem is that the 3-tuples are being added to the cache but never picked up again, since _PyTuple_Resize doesn't make use of the free_tuples cache. If you are resizing a 5-tuple to a 3-tuple and there is already a 3-tuple in free_tuples[3], instead of using this tuple, _PyTuple_Resize will realloc the 5-tuple to a 3-tuple. It would more efficient to use the existing 3-tuple and cache the 5-tuple. By making _PyTuple_Resize aware of the free_tuples (just as PyTuple_New), we not only save a few calls to realloc, but also prevent this misbehavior whereby tuples are being added to the free_tuples list but never properly "recycled". """ And later: """ This patch replaces my submission of Sun, 16 Apr and addresses Jeremy Hylton's suggestions that we also limit the size of the free tuple list. I chose 2000 as the maximum number of tuples of any particular size to save. There was also a problem with the previous version of this patch causing a core dump if Python was built with Py_TRACE_REFS. This is fixed in the below version of the patch, which uses tupledealloc instead of _Py_Dealloc. """
2000-04-22 05:15:05 +08:00
#endif
#ifndef PyTuple_MAXFREELIST
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60568-60598,60600-60616 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60568 | christian.heimes | 2008-02-04 19:48:38 +0100 (Mon, 04 Feb 2008) | 1 line Increase debugging to investige failing tests on some build bots ........ r60570 | christian.heimes | 2008-02-04 20:30:05 +0100 (Mon, 04 Feb 2008) | 1 line Small adjustments for test compact freelist test. It's no passing on Windows as well. ........ r60573 | amaury.forgeotdarc | 2008-02-04 21:53:14 +0100 (Mon, 04 Feb 2008) | 2 lines Correct quotes in NEWS file ........ r60575 | amaury.forgeotdarc | 2008-02-04 22:45:05 +0100 (Mon, 04 Feb 2008) | 13 lines #1750076: Debugger did not step on every iteration of a while statement. The mapping between bytecode offsets and source lines (lnotab) did not contain an entry for the beginning of the loop. Now it does, and the lnotab can be a bit larger: in particular, several statements on the same line generate several entries. However, this does not bother the settrace function, which will trigger only one 'line' event. The lnotab seems to be exactly the same as with python2.4. ........ r60584 | amaury.forgeotdarc | 2008-02-05 01:26:21 +0100 (Tue, 05 Feb 2008) | 3 lines Change r60575 broke test_compile: there is no need to emit co_lnotab item when both offsets are zeros. ........ r60587 | skip.montanaro | 2008-02-05 03:32:16 +0100 (Tue, 05 Feb 2008) | 1 line sync with most recent version from python-mode sf project ........ r60588 | lars.gustaebel | 2008-02-05 12:51:40 +0100 (Tue, 05 Feb 2008) | 5 lines Issue #2004: Use mode 0700 for temporary directories and default permissions for missing directories. (will backport to 2.5) ........ r60590 | georg.brandl | 2008-02-05 13:01:24 +0100 (Tue, 05 Feb 2008) | 2 lines Convert external links to internal links. Fixes #2010. ........ r60592 | marc-andre.lemburg | 2008-02-05 15:50:40 +0100 (Tue, 05 Feb 2008) | 3 lines Keep distutils Python 2.1 compatible (or even Python 2.4 in this case). ........ r60593 | andrew.kuchling | 2008-02-05 17:06:57 +0100 (Tue, 05 Feb 2008) | 5 lines Update PEP URL. (This code is duplicated between pydoc and DocXMLRPCServer; maybe it should be refactored as a GHOP project.) 2.5.2 backport candidate. ........ r60596 | guido.van.rossum | 2008-02-05 18:32:15 +0100 (Tue, 05 Feb 2008) | 2 lines In the experimental 'Scanner' feature, the group count was set wrong. ........ r60602 | facundo.batista | 2008-02-05 20:03:32 +0100 (Tue, 05 Feb 2008) | 3 lines Issue 1951. Converts wave test cases to unittest. ........ r60603 | georg.brandl | 2008-02-05 20:07:10 +0100 (Tue, 05 Feb 2008) | 2 lines Actually run the test. ........ r60604 | skip.montanaro | 2008-02-05 20:24:30 +0100 (Tue, 05 Feb 2008) | 2 lines correct object name ........ r60605 | georg.brandl | 2008-02-05 20:58:17 +0100 (Tue, 05 Feb 2008) | 7 lines * Use the same code to profile for test_profile and test_cprofile. * Convert both to unittest. * Use the same unit testing code. * Include the expected output in both test files. * Make it possible to regenerate the expected output by running the file as a script with an '-r' argument. ........ r60613 | raymond.hettinger | 2008-02-06 02:49:00 +0100 (Wed, 06 Feb 2008) | 1 line Sync-up with Py3k work. ........ r60614 | christian.heimes | 2008-02-06 13:44:34 +0100 (Wed, 06 Feb 2008) | 1 line Limit free list of method and builtin function objects to 256 entries each. ........ r60616 | christian.heimes | 2008-02-06 14:33:44 +0100 (Wed, 06 Feb 2008) | 7 lines Unified naming convention for free lists and their limits. All free lists in Object/ are named ``free_list``, the counter ``numfree`` and the upper limit is a macro ``PyName_MAXFREELIST`` inside an #ifndef block. The chances should make it easier to adjust Python for platforms with less memory, e.g. mobile phones. ........
2008-02-06 22:31:34 +08:00
#define PyTuple_MAXFREELIST 2000 /* Maximum number of tuples of each size to save */
#endif
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60568-60598,60600-60616 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60568 | christian.heimes | 2008-02-04 19:48:38 +0100 (Mon, 04 Feb 2008) | 1 line Increase debugging to investige failing tests on some build bots ........ r60570 | christian.heimes | 2008-02-04 20:30:05 +0100 (Mon, 04 Feb 2008) | 1 line Small adjustments for test compact freelist test. It's no passing on Windows as well. ........ r60573 | amaury.forgeotdarc | 2008-02-04 21:53:14 +0100 (Mon, 04 Feb 2008) | 2 lines Correct quotes in NEWS file ........ r60575 | amaury.forgeotdarc | 2008-02-04 22:45:05 +0100 (Mon, 04 Feb 2008) | 13 lines #1750076: Debugger did not step on every iteration of a while statement. The mapping between bytecode offsets and source lines (lnotab) did not contain an entry for the beginning of the loop. Now it does, and the lnotab can be a bit larger: in particular, several statements on the same line generate several entries. However, this does not bother the settrace function, which will trigger only one 'line' event. The lnotab seems to be exactly the same as with python2.4. ........ r60584 | amaury.forgeotdarc | 2008-02-05 01:26:21 +0100 (Tue, 05 Feb 2008) | 3 lines Change r60575 broke test_compile: there is no need to emit co_lnotab item when both offsets are zeros. ........ r60587 | skip.montanaro | 2008-02-05 03:32:16 +0100 (Tue, 05 Feb 2008) | 1 line sync with most recent version from python-mode sf project ........ r60588 | lars.gustaebel | 2008-02-05 12:51:40 +0100 (Tue, 05 Feb 2008) | 5 lines Issue #2004: Use mode 0700 for temporary directories and default permissions for missing directories. (will backport to 2.5) ........ r60590 | georg.brandl | 2008-02-05 13:01:24 +0100 (Tue, 05 Feb 2008) | 2 lines Convert external links to internal links. Fixes #2010. ........ r60592 | marc-andre.lemburg | 2008-02-05 15:50:40 +0100 (Tue, 05 Feb 2008) | 3 lines Keep distutils Python 2.1 compatible (or even Python 2.4 in this case). ........ r60593 | andrew.kuchling | 2008-02-05 17:06:57 +0100 (Tue, 05 Feb 2008) | 5 lines Update PEP URL. (This code is duplicated between pydoc and DocXMLRPCServer; maybe it should be refactored as a GHOP project.) 2.5.2 backport candidate. ........ r60596 | guido.van.rossum | 2008-02-05 18:32:15 +0100 (Tue, 05 Feb 2008) | 2 lines In the experimental 'Scanner' feature, the group count was set wrong. ........ r60602 | facundo.batista | 2008-02-05 20:03:32 +0100 (Tue, 05 Feb 2008) | 3 lines Issue 1951. Converts wave test cases to unittest. ........ r60603 | georg.brandl | 2008-02-05 20:07:10 +0100 (Tue, 05 Feb 2008) | 2 lines Actually run the test. ........ r60604 | skip.montanaro | 2008-02-05 20:24:30 +0100 (Tue, 05 Feb 2008) | 2 lines correct object name ........ r60605 | georg.brandl | 2008-02-05 20:58:17 +0100 (Tue, 05 Feb 2008) | 7 lines * Use the same code to profile for test_profile and test_cprofile. * Convert both to unittest. * Use the same unit testing code. * Include the expected output in both test files. * Make it possible to regenerate the expected output by running the file as a script with an '-r' argument. ........ r60613 | raymond.hettinger | 2008-02-06 02:49:00 +0100 (Wed, 06 Feb 2008) | 1 line Sync-up with Py3k work. ........ r60614 | christian.heimes | 2008-02-06 13:44:34 +0100 (Wed, 06 Feb 2008) | 1 line Limit free list of method and builtin function objects to 256 entries each. ........ r60616 | christian.heimes | 2008-02-06 14:33:44 +0100 (Wed, 06 Feb 2008) | 7 lines Unified naming convention for free lists and their limits. All free lists in Object/ are named ``free_list``, the counter ``numfree`` and the upper limit is a macro ``PyName_MAXFREELIST`` inside an #ifndef block. The chances should make it easier to adjust Python for platforms with less memory, e.g. mobile phones. ........
2008-02-06 22:31:34 +08:00
#if PyTuple_MAXSAVESIZE > 0
/* Entries 1 up to PyTuple_MAXSAVESIZE are free lists, entry 0 is the empty
tuple () of which at most one instance will be allocated.
*/
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60568-60598,60600-60616 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60568 | christian.heimes | 2008-02-04 19:48:38 +0100 (Mon, 04 Feb 2008) | 1 line Increase debugging to investige failing tests on some build bots ........ r60570 | christian.heimes | 2008-02-04 20:30:05 +0100 (Mon, 04 Feb 2008) | 1 line Small adjustments for test compact freelist test. It's no passing on Windows as well. ........ r60573 | amaury.forgeotdarc | 2008-02-04 21:53:14 +0100 (Mon, 04 Feb 2008) | 2 lines Correct quotes in NEWS file ........ r60575 | amaury.forgeotdarc | 2008-02-04 22:45:05 +0100 (Mon, 04 Feb 2008) | 13 lines #1750076: Debugger did not step on every iteration of a while statement. The mapping between bytecode offsets and source lines (lnotab) did not contain an entry for the beginning of the loop. Now it does, and the lnotab can be a bit larger: in particular, several statements on the same line generate several entries. However, this does not bother the settrace function, which will trigger only one 'line' event. The lnotab seems to be exactly the same as with python2.4. ........ r60584 | amaury.forgeotdarc | 2008-02-05 01:26:21 +0100 (Tue, 05 Feb 2008) | 3 lines Change r60575 broke test_compile: there is no need to emit co_lnotab item when both offsets are zeros. ........ r60587 | skip.montanaro | 2008-02-05 03:32:16 +0100 (Tue, 05 Feb 2008) | 1 line sync with most recent version from python-mode sf project ........ r60588 | lars.gustaebel | 2008-02-05 12:51:40 +0100 (Tue, 05 Feb 2008) | 5 lines Issue #2004: Use mode 0700 for temporary directories and default permissions for missing directories. (will backport to 2.5) ........ r60590 | georg.brandl | 2008-02-05 13:01:24 +0100 (Tue, 05 Feb 2008) | 2 lines Convert external links to internal links. Fixes #2010. ........ r60592 | marc-andre.lemburg | 2008-02-05 15:50:40 +0100 (Tue, 05 Feb 2008) | 3 lines Keep distutils Python 2.1 compatible (or even Python 2.4 in this case). ........ r60593 | andrew.kuchling | 2008-02-05 17:06:57 +0100 (Tue, 05 Feb 2008) | 5 lines Update PEP URL. (This code is duplicated between pydoc and DocXMLRPCServer; maybe it should be refactored as a GHOP project.) 2.5.2 backport candidate. ........ r60596 | guido.van.rossum | 2008-02-05 18:32:15 +0100 (Tue, 05 Feb 2008) | 2 lines In the experimental 'Scanner' feature, the group count was set wrong. ........ r60602 | facundo.batista | 2008-02-05 20:03:32 +0100 (Tue, 05 Feb 2008) | 3 lines Issue 1951. Converts wave test cases to unittest. ........ r60603 | georg.brandl | 2008-02-05 20:07:10 +0100 (Tue, 05 Feb 2008) | 2 lines Actually run the test. ........ r60604 | skip.montanaro | 2008-02-05 20:24:30 +0100 (Tue, 05 Feb 2008) | 2 lines correct object name ........ r60605 | georg.brandl | 2008-02-05 20:58:17 +0100 (Tue, 05 Feb 2008) | 7 lines * Use the same code to profile for test_profile and test_cprofile. * Convert both to unittest. * Use the same unit testing code. * Include the expected output in both test files. * Make it possible to regenerate the expected output by running the file as a script with an '-r' argument. ........ r60613 | raymond.hettinger | 2008-02-06 02:49:00 +0100 (Wed, 06 Feb 2008) | 1 line Sync-up with Py3k work. ........ r60614 | christian.heimes | 2008-02-06 13:44:34 +0100 (Wed, 06 Feb 2008) | 1 line Limit free list of method and builtin function objects to 256 entries each. ........ r60616 | christian.heimes | 2008-02-06 14:33:44 +0100 (Wed, 06 Feb 2008) | 7 lines Unified naming convention for free lists and their limits. All free lists in Object/ are named ``free_list``, the counter ``numfree`` and the upper limit is a macro ``PyName_MAXFREELIST`` inside an #ifndef block. The chances should make it easier to adjust Python for platforms with less memory, e.g. mobile phones. ........
2008-02-06 22:31:34 +08:00
static PyTupleObject *free_list[PyTuple_MAXSAVESIZE];
static int numfree[PyTuple_MAXSAVESIZE];
#endif
#ifdef COUNT_ALLOCS
Py_ssize_t fast_tuple_allocs;
Py_ssize_t tuple_zero_allocs;
#endif
/* Debug statistic to count GC tracking of tuples.
Please note that tuples are only untracked when considered by the GC, and
many of them will be dead before. Therefore, a tracking rate close to 100%
does not necessarily prove that the heuristic is inefficient.
*/
#ifdef SHOW_TRACK_COUNT
static Py_ssize_t count_untracked = 0;
static Py_ssize_t count_tracked = 0;
static void
show_track(void)
{
PyObject *xoptions, *value;
_Py_IDENTIFIER(showalloccount);
xoptions = PySys_GetXOptions();
if (xoptions == NULL)
return;
value = _PyDict_GetItemId(xoptions, &PyId_showalloccount);
if (value != Py_True)
return;
fprintf(stderr, "Tuples created: %" PY_FORMAT_SIZE_T "d\n",
count_tracked + count_untracked);
fprintf(stderr, "Tuples tracked by the GC: %" PY_FORMAT_SIZE_T
"d\n", count_tracked);
fprintf(stderr, "%.2f%% tuple tracking rate\n\n",
(100.0*count_tracked/(count_untracked+count_tracked)));
}
#endif
/* Print summary info about the state of the optimized allocator */
void
_PyTuple_DebugMallocStats(FILE *out)
{
#if PyTuple_MAXSAVESIZE > 0
int i;
char buf[128];
for (i = 1; i < PyTuple_MAXSAVESIZE; i++) {
PyOS_snprintf(buf, sizeof(buf),
"free %d-sized PyTupleObject", i);
_PyDebugAllocatorStats(out,
buf,
numfree[i], _PyObject_VAR_SIZE(&PyTuple_Type, i));
}
#endif
}
1997-05-02 11:12:38 +08:00
PyObject *
PyTuple_New(Py_ssize_t size)
1990-10-14 20:07:46 +08:00
{
PyTupleObject *op;
Py_ssize_t i;
if (size < 0) {
PyErr_BadInternalCall();
return NULL;
}
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60568-60598,60600-60616 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60568 | christian.heimes | 2008-02-04 19:48:38 +0100 (Mon, 04 Feb 2008) | 1 line Increase debugging to investige failing tests on some build bots ........ r60570 | christian.heimes | 2008-02-04 20:30:05 +0100 (Mon, 04 Feb 2008) | 1 line Small adjustments for test compact freelist test. It's no passing on Windows as well. ........ r60573 | amaury.forgeotdarc | 2008-02-04 21:53:14 +0100 (Mon, 04 Feb 2008) | 2 lines Correct quotes in NEWS file ........ r60575 | amaury.forgeotdarc | 2008-02-04 22:45:05 +0100 (Mon, 04 Feb 2008) | 13 lines #1750076: Debugger did not step on every iteration of a while statement. The mapping between bytecode offsets and source lines (lnotab) did not contain an entry for the beginning of the loop. Now it does, and the lnotab can be a bit larger: in particular, several statements on the same line generate several entries. However, this does not bother the settrace function, which will trigger only one 'line' event. The lnotab seems to be exactly the same as with python2.4. ........ r60584 | amaury.forgeotdarc | 2008-02-05 01:26:21 +0100 (Tue, 05 Feb 2008) | 3 lines Change r60575 broke test_compile: there is no need to emit co_lnotab item when both offsets are zeros. ........ r60587 | skip.montanaro | 2008-02-05 03:32:16 +0100 (Tue, 05 Feb 2008) | 1 line sync with most recent version from python-mode sf project ........ r60588 | lars.gustaebel | 2008-02-05 12:51:40 +0100 (Tue, 05 Feb 2008) | 5 lines Issue #2004: Use mode 0700 for temporary directories and default permissions for missing directories. (will backport to 2.5) ........ r60590 | georg.brandl | 2008-02-05 13:01:24 +0100 (Tue, 05 Feb 2008) | 2 lines Convert external links to internal links. Fixes #2010. ........ r60592 | marc-andre.lemburg | 2008-02-05 15:50:40 +0100 (Tue, 05 Feb 2008) | 3 lines Keep distutils Python 2.1 compatible (or even Python 2.4 in this case). ........ r60593 | andrew.kuchling | 2008-02-05 17:06:57 +0100 (Tue, 05 Feb 2008) | 5 lines Update PEP URL. (This code is duplicated between pydoc and DocXMLRPCServer; maybe it should be refactored as a GHOP project.) 2.5.2 backport candidate. ........ r60596 | guido.van.rossum | 2008-02-05 18:32:15 +0100 (Tue, 05 Feb 2008) | 2 lines In the experimental 'Scanner' feature, the group count was set wrong. ........ r60602 | facundo.batista | 2008-02-05 20:03:32 +0100 (Tue, 05 Feb 2008) | 3 lines Issue 1951. Converts wave test cases to unittest. ........ r60603 | georg.brandl | 2008-02-05 20:07:10 +0100 (Tue, 05 Feb 2008) | 2 lines Actually run the test. ........ r60604 | skip.montanaro | 2008-02-05 20:24:30 +0100 (Tue, 05 Feb 2008) | 2 lines correct object name ........ r60605 | georg.brandl | 2008-02-05 20:58:17 +0100 (Tue, 05 Feb 2008) | 7 lines * Use the same code to profile for test_profile and test_cprofile. * Convert both to unittest. * Use the same unit testing code. * Include the expected output in both test files. * Make it possible to regenerate the expected output by running the file as a script with an '-r' argument. ........ r60613 | raymond.hettinger | 2008-02-06 02:49:00 +0100 (Wed, 06 Feb 2008) | 1 line Sync-up with Py3k work. ........ r60614 | christian.heimes | 2008-02-06 13:44:34 +0100 (Wed, 06 Feb 2008) | 1 line Limit free list of method and builtin function objects to 256 entries each. ........ r60616 | christian.heimes | 2008-02-06 14:33:44 +0100 (Wed, 06 Feb 2008) | 7 lines Unified naming convention for free lists and their limits. All free lists in Object/ are named ``free_list``, the counter ``numfree`` and the upper limit is a macro ``PyName_MAXFREELIST`` inside an #ifndef block. The chances should make it easier to adjust Python for platforms with less memory, e.g. mobile phones. ........
2008-02-06 22:31:34 +08:00
#if PyTuple_MAXSAVESIZE > 0
if (size == 0 && free_list[0]) {
op = free_list[0];
Py_INCREF(op);
#ifdef COUNT_ALLOCS
tuple_zero_allocs++;
#endif
return (PyObject *) op;
}
if (size < PyTuple_MAXSAVESIZE && (op = free_list[size]) != NULL) {
free_list[size] = (PyTupleObject *) op->ob_item[0];
numfree[size]--;
#ifdef COUNT_ALLOCS
fast_tuple_allocs++;
#endif
/* Inline PyObject_InitVar */
#ifdef Py_TRACE_REFS
Py_SIZE(op) = size;
Py_TYPE(op) = &PyTuple_Type;
#endif
_Py_NewReference((PyObject *)op);
}
else
#endif
{
/* Check for overflow */
if ((size_t)size > ((size_t)PY_SSIZE_T_MAX - sizeof(PyTupleObject) -
sizeof(PyObject *)) / sizeof(PyObject *)) {
return PyErr_NoMemory();
}
op = PyObject_GC_NewVar(PyTupleObject, &PyTuple_Type, size);
if (op == NULL)
return NULL;
}
for (i=0; i < size; i++)
op->ob_item[i] = NULL;
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60568-60598,60600-60616 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60568 | christian.heimes | 2008-02-04 19:48:38 +0100 (Mon, 04 Feb 2008) | 1 line Increase debugging to investige failing tests on some build bots ........ r60570 | christian.heimes | 2008-02-04 20:30:05 +0100 (Mon, 04 Feb 2008) | 1 line Small adjustments for test compact freelist test. It's no passing on Windows as well. ........ r60573 | amaury.forgeotdarc | 2008-02-04 21:53:14 +0100 (Mon, 04 Feb 2008) | 2 lines Correct quotes in NEWS file ........ r60575 | amaury.forgeotdarc | 2008-02-04 22:45:05 +0100 (Mon, 04 Feb 2008) | 13 lines #1750076: Debugger did not step on every iteration of a while statement. The mapping between bytecode offsets and source lines (lnotab) did not contain an entry for the beginning of the loop. Now it does, and the lnotab can be a bit larger: in particular, several statements on the same line generate several entries. However, this does not bother the settrace function, which will trigger only one 'line' event. The lnotab seems to be exactly the same as with python2.4. ........ r60584 | amaury.forgeotdarc | 2008-02-05 01:26:21 +0100 (Tue, 05 Feb 2008) | 3 lines Change r60575 broke test_compile: there is no need to emit co_lnotab item when both offsets are zeros. ........ r60587 | skip.montanaro | 2008-02-05 03:32:16 +0100 (Tue, 05 Feb 2008) | 1 line sync with most recent version from python-mode sf project ........ r60588 | lars.gustaebel | 2008-02-05 12:51:40 +0100 (Tue, 05 Feb 2008) | 5 lines Issue #2004: Use mode 0700 for temporary directories and default permissions for missing directories. (will backport to 2.5) ........ r60590 | georg.brandl | 2008-02-05 13:01:24 +0100 (Tue, 05 Feb 2008) | 2 lines Convert external links to internal links. Fixes #2010. ........ r60592 | marc-andre.lemburg | 2008-02-05 15:50:40 +0100 (Tue, 05 Feb 2008) | 3 lines Keep distutils Python 2.1 compatible (or even Python 2.4 in this case). ........ r60593 | andrew.kuchling | 2008-02-05 17:06:57 +0100 (Tue, 05 Feb 2008) | 5 lines Update PEP URL. (This code is duplicated between pydoc and DocXMLRPCServer; maybe it should be refactored as a GHOP project.) 2.5.2 backport candidate. ........ r60596 | guido.van.rossum | 2008-02-05 18:32:15 +0100 (Tue, 05 Feb 2008) | 2 lines In the experimental 'Scanner' feature, the group count was set wrong. ........ r60602 | facundo.batista | 2008-02-05 20:03:32 +0100 (Tue, 05 Feb 2008) | 3 lines Issue 1951. Converts wave test cases to unittest. ........ r60603 | georg.brandl | 2008-02-05 20:07:10 +0100 (Tue, 05 Feb 2008) | 2 lines Actually run the test. ........ r60604 | skip.montanaro | 2008-02-05 20:24:30 +0100 (Tue, 05 Feb 2008) | 2 lines correct object name ........ r60605 | georg.brandl | 2008-02-05 20:58:17 +0100 (Tue, 05 Feb 2008) | 7 lines * Use the same code to profile for test_profile and test_cprofile. * Convert both to unittest. * Use the same unit testing code. * Include the expected output in both test files. * Make it possible to regenerate the expected output by running the file as a script with an '-r' argument. ........ r60613 | raymond.hettinger | 2008-02-06 02:49:00 +0100 (Wed, 06 Feb 2008) | 1 line Sync-up with Py3k work. ........ r60614 | christian.heimes | 2008-02-06 13:44:34 +0100 (Wed, 06 Feb 2008) | 1 line Limit free list of method and builtin function objects to 256 entries each. ........ r60616 | christian.heimes | 2008-02-06 14:33:44 +0100 (Wed, 06 Feb 2008) | 7 lines Unified naming convention for free lists and their limits. All free lists in Object/ are named ``free_list``, the counter ``numfree`` and the upper limit is a macro ``PyName_MAXFREELIST`` inside an #ifndef block. The chances should make it easier to adjust Python for platforms with less memory, e.g. mobile phones. ........
2008-02-06 22:31:34 +08:00
#if PyTuple_MAXSAVESIZE > 0
if (size == 0) {
free_list[0] = op;
++numfree[0];
Py_INCREF(op); /* extra INCREF so that this is never freed */
}
#endif
#ifdef SHOW_TRACK_COUNT
count_tracked++;
#endif
_PyObject_GC_TRACK(op);
return (PyObject *) op;
1990-10-14 20:07:46 +08:00
}
2006-02-16 01:27:45 +08:00
Py_ssize_t
PyTuple_Size(PyObject *op)
1990-10-14 20:07:46 +08:00
{
if (!PyTuple_Check(op)) {
PyErr_BadInternalCall();
return -1;
}
else
return Py_SIZE(op);
1990-10-14 20:07:46 +08:00
}
1997-05-02 11:12:38 +08:00
PyObject *
PyTuple_GetItem(PyObject *op, Py_ssize_t i)
1990-10-14 20:07:46 +08:00
{
if (!PyTuple_Check(op)) {
PyErr_BadInternalCall();
return NULL;
}
if (i < 0 || i >= Py_SIZE(op)) {
PyErr_SetString(PyExc_IndexError, "tuple index out of range");
return NULL;
}
return ((PyTupleObject *)op) -> ob_item[i];
1990-10-14 20:07:46 +08:00
}
int
PyTuple_SetItem(PyObject *op, Py_ssize_t i, PyObject *newitem)
1990-10-14 20:07:46 +08:00
{
PyObject **p;
if (!PyTuple_Check(op) || op->ob_refcnt != 1) {
Py_XDECREF(newitem);
PyErr_BadInternalCall();
return -1;
}
if (i < 0 || i >= Py_SIZE(op)) {
Py_XDECREF(newitem);
PyErr_SetString(PyExc_IndexError,
"tuple assignment index out of range");
return -1;
}
p = ((PyTupleObject *)op) -> ob_item + i;
Py_XSETREF(*p, newitem);
return 0;
1990-10-14 20:07:46 +08:00
}
void
_PyTuple_MaybeUntrack(PyObject *op)
{
PyTupleObject *t;
Py_ssize_t i, n;
if (!PyTuple_CheckExact(op) || !_PyObject_GC_IS_TRACKED(op))
return;
t = (PyTupleObject *) op;
n = Py_SIZE(t);
for (i = 0; i < n; i++) {
PyObject *elt = PyTuple_GET_ITEM(t, i);
/* Tuple with NULL elements aren't
fully constructed, don't untrack
them yet. */
if (!elt ||
_PyObject_GC_MAY_BE_TRACKED(elt))
return;
}
#ifdef SHOW_TRACK_COUNT
count_tracked--;
count_untracked++;
#endif
_PyObject_GC_UNTRACK(op);
}
PyObject *
2006-02-16 01:27:45 +08:00
PyTuple_Pack(Py_ssize_t n, ...)
{
Py_ssize_t i;
PyObject *o;
PyObject *result;
PyObject **items;
va_list vargs;
va_start(vargs, n);
result = PyTuple_New(n);
if (result == NULL) {
va_end(vargs);
return NULL;
}
items = ((PyTupleObject *)result)->ob_item;
for (i = 0; i < n; i++) {
o = va_arg(vargs, PyObject *);
Py_INCREF(o);
items[i] = o;
}
va_end(vargs);
return result;
}
1990-10-14 20:07:46 +08:00
/* Methods */
static void
tupledealloc(PyTupleObject *op)
1990-10-14 20:07:46 +08:00
{
Py_ssize_t i;
Py_ssize_t len = Py_SIZE(op);
PyObject_GC_UnTrack(op);
Py_TRASHCAN_SAFE_BEGIN(op)
if (len > 0) {
i = len;
while (--i >= 0)
Py_XDECREF(op->ob_item[i]);
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60568-60598,60600-60616 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60568 | christian.heimes | 2008-02-04 19:48:38 +0100 (Mon, 04 Feb 2008) | 1 line Increase debugging to investige failing tests on some build bots ........ r60570 | christian.heimes | 2008-02-04 20:30:05 +0100 (Mon, 04 Feb 2008) | 1 line Small adjustments for test compact freelist test. It's no passing on Windows as well. ........ r60573 | amaury.forgeotdarc | 2008-02-04 21:53:14 +0100 (Mon, 04 Feb 2008) | 2 lines Correct quotes in NEWS file ........ r60575 | amaury.forgeotdarc | 2008-02-04 22:45:05 +0100 (Mon, 04 Feb 2008) | 13 lines #1750076: Debugger did not step on every iteration of a while statement. The mapping between bytecode offsets and source lines (lnotab) did not contain an entry for the beginning of the loop. Now it does, and the lnotab can be a bit larger: in particular, several statements on the same line generate several entries. However, this does not bother the settrace function, which will trigger only one 'line' event. The lnotab seems to be exactly the same as with python2.4. ........ r60584 | amaury.forgeotdarc | 2008-02-05 01:26:21 +0100 (Tue, 05 Feb 2008) | 3 lines Change r60575 broke test_compile: there is no need to emit co_lnotab item when both offsets are zeros. ........ r60587 | skip.montanaro | 2008-02-05 03:32:16 +0100 (Tue, 05 Feb 2008) | 1 line sync with most recent version from python-mode sf project ........ r60588 | lars.gustaebel | 2008-02-05 12:51:40 +0100 (Tue, 05 Feb 2008) | 5 lines Issue #2004: Use mode 0700 for temporary directories and default permissions for missing directories. (will backport to 2.5) ........ r60590 | georg.brandl | 2008-02-05 13:01:24 +0100 (Tue, 05 Feb 2008) | 2 lines Convert external links to internal links. Fixes #2010. ........ r60592 | marc-andre.lemburg | 2008-02-05 15:50:40 +0100 (Tue, 05 Feb 2008) | 3 lines Keep distutils Python 2.1 compatible (or even Python 2.4 in this case). ........ r60593 | andrew.kuchling | 2008-02-05 17:06:57 +0100 (Tue, 05 Feb 2008) | 5 lines Update PEP URL. (This code is duplicated between pydoc and DocXMLRPCServer; maybe it should be refactored as a GHOP project.) 2.5.2 backport candidate. ........ r60596 | guido.van.rossum | 2008-02-05 18:32:15 +0100 (Tue, 05 Feb 2008) | 2 lines In the experimental 'Scanner' feature, the group count was set wrong. ........ r60602 | facundo.batista | 2008-02-05 20:03:32 +0100 (Tue, 05 Feb 2008) | 3 lines Issue 1951. Converts wave test cases to unittest. ........ r60603 | georg.brandl | 2008-02-05 20:07:10 +0100 (Tue, 05 Feb 2008) | 2 lines Actually run the test. ........ r60604 | skip.montanaro | 2008-02-05 20:24:30 +0100 (Tue, 05 Feb 2008) | 2 lines correct object name ........ r60605 | georg.brandl | 2008-02-05 20:58:17 +0100 (Tue, 05 Feb 2008) | 7 lines * Use the same code to profile for test_profile and test_cprofile. * Convert both to unittest. * Use the same unit testing code. * Include the expected output in both test files. * Make it possible to regenerate the expected output by running the file as a script with an '-r' argument. ........ r60613 | raymond.hettinger | 2008-02-06 02:49:00 +0100 (Wed, 06 Feb 2008) | 1 line Sync-up with Py3k work. ........ r60614 | christian.heimes | 2008-02-06 13:44:34 +0100 (Wed, 06 Feb 2008) | 1 line Limit free list of method and builtin function objects to 256 entries each. ........ r60616 | christian.heimes | 2008-02-06 14:33:44 +0100 (Wed, 06 Feb 2008) | 7 lines Unified naming convention for free lists and their limits. All free lists in Object/ are named ``free_list``, the counter ``numfree`` and the upper limit is a macro ``PyName_MAXFREELIST`` inside an #ifndef block. The chances should make it easier to adjust Python for platforms with less memory, e.g. mobile phones. ........
2008-02-06 22:31:34 +08:00
#if PyTuple_MAXSAVESIZE > 0
if (len < PyTuple_MAXSAVESIZE &&
numfree[len] < PyTuple_MAXFREELIST &&
Py_TYPE(op) == &PyTuple_Type)
{
op->ob_item[0] = (PyObject *) free_list[len];
numfree[len]++;
free_list[len] = op;
goto done; /* return */
}
#endif
}
Py_TYPE(op)->tp_free((PyObject *)op);
done:
Py_TRASHCAN_SAFE_END(op)
1990-10-14 20:07:46 +08:00
}
1997-05-02 11:12:38 +08:00
static PyObject *
2000-07-09 15:04:36 +08:00
tuplerepr(PyTupleObject *v)
1990-10-14 20:07:46 +08:00
{
Py_ssize_t i, n;
_PyUnicodeWriter writer;
n = Py_SIZE(v);
if (n == 0)
return PyUnicode_FromString("()");
/* While not mutable, it is still possible to end up with a cycle in a
tuple through an object that stores itself within a tuple (and thus
infinitely asks for the repr of itself). This should only be
possible within a type. */
i = Py_ReprEnter((PyObject *)v);
if (i != 0) {
return i > 0 ? PyUnicode_FromString("(...)") : NULL;
}
_PyUnicodeWriter_Init(&writer);
writer.overallocate = 1;
if (Py_SIZE(v) > 1) {
/* "(" + "1" + ", 2" * (len - 1) + ")" */
writer.min_length = 1 + 1 + (2 + 1) * (Py_SIZE(v) - 1) + 1;
}
else {
/* "(1,)" */
writer.min_length = 4;
}
if (_PyUnicodeWriter_WriteChar(&writer, '(') < 0)
goto error;
/* Do repr() on each element. */
for (i = 0; i < n; ++i) {
PyObject *s;
if (i > 0) {
if (_PyUnicodeWriter_WriteASCIIString(&writer, ", ", 2) < 0)
goto error;
}
if (Py_EnterRecursiveCall(" while getting the repr of a tuple"))
goto error;
s = PyObject_Repr(v->ob_item[i]);
Py_LeaveRecursiveCall();
if (s == NULL)
goto error;
if (_PyUnicodeWriter_WriteStr(&writer, s) < 0) {
Py_DECREF(s);
goto error;
}
Py_DECREF(s);
}
writer.overallocate = 0;
if (n > 1) {
if (_PyUnicodeWriter_WriteChar(&writer, ')') < 0)
goto error;
}
else {
if (_PyUnicodeWriter_WriteASCIIString(&writer, ",)", 2) < 0)
goto error;
}
Py_ReprLeave((PyObject *)v);
return _PyUnicodeWriter_Finish(&writer);
error:
_PyUnicodeWriter_Dealloc(&writer);
Py_ReprLeave((PyObject *)v);
return NULL;
1990-10-14 20:07:46 +08:00
}
/* The addend 82520, was selected from the range(0, 1000000) for
generating the greatest number of prime multipliers for tuples
upto length eight:
1082527, 1165049, 1082531, 1165057, 1247581, 1330103, 1082533,
1330111, 1412633, 1165069, 1247599, 1495177, 1577699
Tests have shown that it's not worth to cache the hash value, see
issue #9685.
*/
static Py_hash_t
2000-07-09 15:04:36 +08:00
tuplehash(PyTupleObject *v)
{
Py_uhash_t x; /* Unsigned for defined overflow behavior. */
Py_hash_t y;
Py_ssize_t len = Py_SIZE(v);
PyObject **p;
Py_uhash_t mult = _PyHASH_MULTIPLIER;
x = 0x345678UL;
p = v->ob_item;
while (--len >= 0) {
y = PyObject_Hash(*p++);
if (y == -1)
return -1;
x = (x ^ y) * mult;
/* the cast might truncate len; that doesn't change hash stability */
mult += (Py_hash_t)(82520UL + len + len);
}
x += 97531UL;
if (x == (Py_uhash_t)-1)
x = -2;
return x;
}
2006-02-16 01:27:45 +08:00
static Py_ssize_t
2000-07-09 15:04:36 +08:00
tuplelength(PyTupleObject *a)
1990-10-14 20:07:46 +08:00
{
return Py_SIZE(a);
1990-10-14 20:07:46 +08:00
}
static int
2000-07-09 15:04:36 +08:00
tuplecontains(PyTupleObject *a, PyObject *el)
{
Py_ssize_t i;
int cmp;
for (i = 0, cmp = 0 ; cmp == 0 && i < Py_SIZE(a); ++i)
cmp = PyObject_RichCompareBool(el, PyTuple_GET_ITEM(a, i),
Py_EQ);
return cmp;
}
1997-05-02 11:12:38 +08:00
static PyObject *
tupleitem(PyTupleObject *a, Py_ssize_t i)
1990-10-14 20:07:46 +08:00
{
if (i < 0 || i >= Py_SIZE(a)) {
PyErr_SetString(PyExc_IndexError, "tuple index out of range");
return NULL;
}
Py_INCREF(a->ob_item[i]);
return a->ob_item[i];
1990-10-14 20:07:46 +08:00
}
1997-05-02 11:12:38 +08:00
static PyObject *
tupleslice(PyTupleObject *a, Py_ssize_t ilow,
Py_ssize_t ihigh)
1990-10-14 20:07:46 +08:00
{
PyTupleObject *np;
PyObject **src, **dest;
Py_ssize_t i;
Py_ssize_t len;
if (ilow < 0)
ilow = 0;
if (ihigh > Py_SIZE(a))
ihigh = Py_SIZE(a);
if (ihigh < ilow)
ihigh = ilow;
if (ilow == 0 && ihigh == Py_SIZE(a) && PyTuple_CheckExact(a)) {
Py_INCREF(a);
return (PyObject *)a;
}
len = ihigh - ilow;
np = (PyTupleObject *)PyTuple_New(len);
if (np == NULL)
return NULL;
src = a->ob_item + ilow;
dest = np->ob_item;
for (i = 0; i < len; i++) {
PyObject *v = src[i];
Py_INCREF(v);
dest[i] = v;
}
return (PyObject *)np;
1990-10-14 20:07:46 +08:00
}
1997-05-02 11:12:38 +08:00
PyObject *
2006-02-16 01:27:45 +08:00
PyTuple_GetSlice(PyObject *op, Py_ssize_t i, Py_ssize_t j)
1992-01-15 02:45:33 +08:00
{
if (op == NULL || !PyTuple_Check(op)) {
PyErr_BadInternalCall();
return NULL;
}
return tupleslice((PyTupleObject *)op, i, j);
1992-01-15 02:45:33 +08:00
}
1997-05-02 11:12:38 +08:00
static PyObject *
tupleconcat(PyTupleObject *a, PyObject *bb)
1990-10-14 20:07:46 +08:00
{
Py_ssize_t size;
Py_ssize_t i;
PyObject **src, **dest;
PyTupleObject *np;
if (Py_SIZE(a) == 0 && PyTuple_CheckExact(bb)) {
Py_INCREF(bb);
return bb;
}
if (!PyTuple_Check(bb)) {
PyErr_Format(PyExc_TypeError,
"can only concatenate tuple (not \"%.200s\") to tuple",
Py_TYPE(bb)->tp_name);
return NULL;
}
1997-05-02 11:12:38 +08:00
#define b ((PyTupleObject *)bb)
if (Py_SIZE(b) == 0 && PyTuple_CheckExact(a)) {
Py_INCREF(a);
return (PyObject *)a;
}
if (Py_SIZE(a) > PY_SSIZE_T_MAX - Py_SIZE(b))
return PyErr_NoMemory();
size = Py_SIZE(a) + Py_SIZE(b);
np = (PyTupleObject *) PyTuple_New(size);
if (np == NULL) {
return NULL;
}
src = a->ob_item;
dest = np->ob_item;
for (i = 0; i < Py_SIZE(a); i++) {
PyObject *v = src[i];
Py_INCREF(v);
dest[i] = v;
}
src = b->ob_item;
dest = np->ob_item + Py_SIZE(a);
for (i = 0; i < Py_SIZE(b); i++) {
PyObject *v = src[i];
Py_INCREF(v);
dest[i] = v;
}
return (PyObject *)np;
1990-10-14 20:07:46 +08:00
#undef b
}
1997-05-02 11:12:38 +08:00
static PyObject *
2006-02-16 01:27:45 +08:00
tuplerepeat(PyTupleObject *a, Py_ssize_t n)
{
Py_ssize_t i, j;
Py_ssize_t size;
PyTupleObject *np;
PyObject **p, **items;
if (n < 0)
n = 0;
if (Py_SIZE(a) == 0 || n == 1) {
if (PyTuple_CheckExact(a)) {
/* Since tuples are immutable, we can return a shared
copy in this case */
Py_INCREF(a);
return (PyObject *)a;
}
if (Py_SIZE(a) == 0)
return PyTuple_New(0);
}
if (n > PY_SSIZE_T_MAX / Py_SIZE(a))
return PyErr_NoMemory();
size = Py_SIZE(a) * n;
np = (PyTupleObject *) PyTuple_New(size);
if (np == NULL)
return NULL;
p = np->ob_item;
items = a->ob_item;
for (i = 0; i < n; i++) {
for (j = 0; j < Py_SIZE(a); j++) {
*p = items[j];
Py_INCREF(*p);
p++;
}
}
return (PyObject *) np;
}
/*[clinic input]
tuple.index
value: object
start: slice_index(accept={int}) = 0
stop: slice_index(accept={int}, c_default="PY_SSIZE_T_MAX") = sys.maxsize
/
Return first index of value.
Raises ValueError if the value is not present.
[clinic start generated code]*/
static PyObject *
tuple_index_impl(PyTupleObject *self, PyObject *value, Py_ssize_t start,
Py_ssize_t stop)
/*[clinic end generated code: output=07b6f9f3cb5c33eb input=fb39e9874a21fe3f]*/
{
Py_ssize_t i;
if (start < 0) {
start += Py_SIZE(self);
if (start < 0)
start = 0;
}
if (stop < 0) {
stop += Py_SIZE(self);
}
else if (stop > Py_SIZE(self)) {
stop = Py_SIZE(self);
}
for (i = start; i < stop; i++) {
int cmp = PyObject_RichCompareBool(self->ob_item[i], value, Py_EQ);
if (cmp > 0)
return PyLong_FromSsize_t(i);
else if (cmp < 0)
return NULL;
}
PyErr_SetString(PyExc_ValueError, "tuple.index(x): x not in tuple");
return NULL;
}
/*[clinic input]
tuple.count
value: object
/
Return number of occurrences of value.
[clinic start generated code]*/
static PyObject *
tuple_count(PyTupleObject *self, PyObject *value)
/*[clinic end generated code: output=aa927affc5a97605 input=531721aff65bd772]*/
{
Py_ssize_t count = 0;
Py_ssize_t i;
for (i = 0; i < Py_SIZE(self); i++) {
int cmp = PyObject_RichCompareBool(self->ob_item[i], value, Py_EQ);
if (cmp > 0)
count++;
else if (cmp < 0)
return NULL;
}
return PyLong_FromSsize_t(count);
}
static int
tupletraverse(PyTupleObject *o, visitproc visit, void *arg)
{
Py_ssize_t i;
for (i = Py_SIZE(o); --i >= 0; )
Py_VISIT(o->ob_item[i]);
return 0;
}
static PyObject *
tuplerichcompare(PyObject *v, PyObject *w, int op)
{
PyTupleObject *vt, *wt;
Py_ssize_t i;
Py_ssize_t vlen, wlen;
if (!PyTuple_Check(v) || !PyTuple_Check(w))
Py_RETURN_NOTIMPLEMENTED;
vt = (PyTupleObject *)v;
wt = (PyTupleObject *)w;
vlen = Py_SIZE(vt);
wlen = Py_SIZE(wt);
/* Note: the corresponding code for lists has an "early out" test
* here when op is EQ or NE and the lengths differ. That pays there,
* but Tim was unable to find any real code where EQ/NE tuple
* compares don't have the same length, so testing for it here would
* have cost without benefit.
*/
/* Search for the first index where items are different.
* Note that because tuples are immutable, it's safe to reuse
* vlen and wlen across the comparison calls.
*/
for (i = 0; i < vlen && i < wlen; i++) {
int k = PyObject_RichCompareBool(vt->ob_item[i],
wt->ob_item[i], Py_EQ);
if (k < 0)
return NULL;
if (!k)
break;
}
if (i >= vlen || i >= wlen) {
/* No more items to compare -- compare sizes */
Py_RETURN_RICHCOMPARE(vlen, wlen, op);
}
/* We have an item that differs -- shortcuts for EQ/NE */
if (op == Py_EQ) {
Py_RETURN_FALSE;
}
if (op == Py_NE) {
Py_RETURN_TRUE;
}
/* Compare the final item again using the proper operator */
return PyObject_RichCompare(vt->ob_item[i], wt->ob_item[i], op);
}
static PyObject *
tuple_subtype_new(PyTypeObject *type, PyObject *iterable);
/*[clinic input]
@classmethod
tuple.__new__ as tuple_new
iterable: object(c_default="NULL") = ()
/
Built-in immutable sequence.
If no argument is given, the constructor returns an empty tuple.
If iterable is specified the tuple is initialized from iterable's items.
If the argument is a tuple, the return value is the same object.
[clinic start generated code]*/
2001-08-30 11:11:59 +08:00
2001-08-02 12:15:00 +08:00
static PyObject *
tuple_new_impl(PyTypeObject *type, PyObject *iterable)
/*[clinic end generated code: output=4546d9f0d469bce7 input=86963bcde633b5a2]*/
2001-08-02 12:15:00 +08:00
{
if (type != &PyTuple_Type)
return tuple_subtype_new(type, iterable);
if (iterable == NULL)
return PyTuple_New(0);
else
return PySequence_Tuple(iterable);
2001-08-02 12:15:00 +08:00
}
2001-08-30 11:11:59 +08:00
static PyObject *
tuple_subtype_new(PyTypeObject *type, PyObject *iterable)
2001-08-30 11:11:59 +08:00
{
PyObject *tmp, *newobj, *item;
Py_ssize_t i, n;
assert(PyType_IsSubtype(type, &PyTuple_Type));
tmp = tuple_new_impl(&PyTuple_Type, iterable);
if (tmp == NULL)
return NULL;
assert(PyTuple_Check(tmp));
newobj = type->tp_alloc(type, n = PyTuple_GET_SIZE(tmp));
if (newobj == NULL)
return NULL;
for (i = 0; i < n; i++) {
item = PyTuple_GET_ITEM(tmp, i);
Py_INCREF(item);
PyTuple_SET_ITEM(newobj, i, item);
}
Py_DECREF(tmp);
return newobj;
2001-08-30 11:11:59 +08:00
}
1997-05-02 11:12:38 +08:00
static PySequenceMethods tuple_as_sequence = {
(lenfunc)tuplelength, /* sq_length */
(binaryfunc)tupleconcat, /* sq_concat */
(ssizeargfunc)tuplerepeat, /* sq_repeat */
(ssizeargfunc)tupleitem, /* sq_item */
0, /* sq_slice */
0, /* sq_ass_item */
0, /* sq_ass_slice */
(objobjproc)tuplecontains, /* sq_contains */
1990-10-14 20:07:46 +08:00
};
static PyObject*
tuplesubscript(PyTupleObject* self, PyObject* item)
{
if (PyIndex_Check(item)) {
Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
if (i == -1 && PyErr_Occurred())
return NULL;
if (i < 0)
i += PyTuple_GET_SIZE(self);
return tupleitem(self, i);
}
else if (PySlice_Check(item)) {
Py_ssize_t start, stop, step, slicelength, cur, i;
PyObject* result;
PyObject* it;
PyObject **src, **dest;
if (PySlice_Unpack(item, &start, &stop, &step) < 0) {
return NULL;
}
slicelength = PySlice_AdjustIndices(PyTuple_GET_SIZE(self), &start,
&stop, step);
if (slicelength <= 0) {
return PyTuple_New(0);
}
else if (start == 0 && step == 1 &&
slicelength == PyTuple_GET_SIZE(self) &&
PyTuple_CheckExact(self)) {
Py_INCREF(self);
return (PyObject *)self;
}
else {
result = PyTuple_New(slicelength);
if (!result) return NULL;
src = self->ob_item;
dest = ((PyTupleObject *)result)->ob_item;
for (cur = start, i = 0; i < slicelength;
cur += step, i++) {
it = src[cur];
Py_INCREF(it);
dest[i] = it;
}
return result;
}
}
else {
PyErr_Format(PyExc_TypeError,
"tuple indices must be integers or slices, not %.200s",
Py_TYPE(item)->tp_name);
return NULL;
}
}
/*[clinic input]
tuple.__getnewargs__
[clinic start generated code]*/
static PyObject *
tuple___getnewargs___impl(PyTupleObject *self)
/*[clinic end generated code: output=25e06e3ee56027e2 input=1aeb4b286a21639a]*/
{
return Py_BuildValue("(N)", tupleslice(self, 0, Py_SIZE(self)));
}
static PyMethodDef tuple_methods[] = {
TUPLE___GETNEWARGS___METHODDEF
TUPLE_INDEX_METHODDEF
TUPLE_COUNT_METHODDEF
{NULL, NULL} /* sentinel */
};
static PyMappingMethods tuple_as_mapping = {
(lenfunc)tuplelength,
(binaryfunc)tuplesubscript,
0
};
static PyObject *tuple_iter(PyObject *seq);
1997-05-02 11:12:38 +08:00
PyTypeObject PyTuple_Type = {
PyVarObject_HEAD_INIT(&PyType_Type, 0)
"tuple",
sizeof(PyTupleObject) - sizeof(PyObject *),
sizeof(PyObject *),
(destructor)tupledealloc, /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_reserved */
(reprfunc)tuplerepr, /* tp_repr */
0, /* tp_as_number */
&tuple_as_sequence, /* tp_as_sequence */
&tuple_as_mapping, /* tp_as_mapping */
(hashfunc)tuplehash, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
PyObject_GenericGetAttr, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE | Py_TPFLAGS_TUPLE_SUBCLASS, /* tp_flags */
tuple_new__doc__, /* tp_doc */
(traverseproc)tupletraverse, /* tp_traverse */
0, /* tp_clear */
tuplerichcompare, /* tp_richcompare */
0, /* tp_weaklistoffset */
tuple_iter, /* tp_iter */
0, /* tp_iternext */
tuple_methods, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
tuple_new, /* tp_new */
PyObject_GC_Del, /* tp_free */
1990-10-14 20:07:46 +08:00
};
/* The following function breaks the notion that tuples are immutable:
it changes the size of a tuple. We get away with this only if there
is only one module referencing the object. You can also think of it
as creating a new tuple object and destroying the old one, only more
efficiently. In any case, don't use this if the tuple may already be
known to some other part of the code. */
int
2006-02-16 01:27:45 +08:00
_PyTuple_Resize(PyObject **pv, Py_ssize_t newsize)
{
PyTupleObject *v;
PyTupleObject *sv;
Py_ssize_t i;
Py_ssize_t oldsize;
v = (PyTupleObject *) *pv;
if (v == NULL || Py_TYPE(v) != &PyTuple_Type ||
(Py_SIZE(v) != 0 && Py_REFCNT(v) != 1)) {
*pv = 0;
Py_XDECREF(v);
PyErr_BadInternalCall();
return -1;
}
oldsize = Py_SIZE(v);
if (oldsize == newsize)
return 0;
if (oldsize == 0) {
/* Empty tuples are often shared, so we should never
resize them in-place even if we do own the only
(current) reference */
Py_DECREF(v);
*pv = PyTuple_New(newsize);
return *pv == NULL ? -1 : 0;
}
/* XXX UNREF/NEWREF interface should be more symmetrical */
_Py_DEC_REFTOTAL;
if (_PyObject_GC_IS_TRACKED(v))
_PyObject_GC_UNTRACK(v);
_Py_ForgetReference((PyObject *) v);
/* DECREF items deleted by shrinkage */
for (i = newsize; i < oldsize; i++) {
Py_CLEAR(v->ob_item[i]);
}
sv = PyObject_GC_Resize(PyTupleObject, v, newsize);
if (sv == NULL) {
*pv = NULL;
PyObject_GC_Del(v);
return -1;
}
_Py_NewReference((PyObject *) sv);
/* Zero out items added by growing */
if (newsize > oldsize)
memset(&sv->ob_item[oldsize], 0,
sizeof(*sv->ob_item) * (newsize - oldsize));
*pv = (PyObject *) sv;
_PyObject_GC_TRACK(sv);
return 0;
}
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60790 | raymond.hettinger | 2008-02-14 10:32:45 +0100 (Thu, 14 Feb 2008) | 4 lines Add diagnostic message to help figure-out why SocketServer tests occasionally crash when trying to remove a pid that in not in the activechildren list. ........ r60791 | raymond.hettinger | 2008-02-14 11:46:57 +0100 (Thu, 14 Feb 2008) | 1 line Add fixed-point examples to the decimal FAQ ........ r60792 | raymond.hettinger | 2008-02-14 12:01:10 +0100 (Thu, 14 Feb 2008) | 1 line Improve rst markup ........ r60794 | raymond.hettinger | 2008-02-14 12:57:25 +0100 (Thu, 14 Feb 2008) | 1 line Show how to remove exponents. ........ r60795 | raymond.hettinger | 2008-02-14 13:05:42 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup. ........ r60797 | christian.heimes | 2008-02-14 13:47:33 +0100 (Thu, 14 Feb 2008) | 1 line Implemented Martin's suggestion to clear the free lists during the garbage collection of the highest generation. ........ r60798 | raymond.hettinger | 2008-02-14 13:49:37 +0100 (Thu, 14 Feb 2008) | 1 line Simplify moneyfmt() recipe. ........ r60810 | raymond.hettinger | 2008-02-14 20:02:39 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup ........ r60811 | raymond.hettinger | 2008-02-14 20:30:30 +0100 (Thu, 14 Feb 2008) | 1 line No need to register subclass of ABCs. ........ r60814 | thomas.heller | 2008-02-14 22:00:28 +0100 (Thu, 14 Feb 2008) | 1 line Try to correct a markup error that does hide the following paragraph. ........ r60822 | christian.heimes | 2008-02-14 23:40:11 +0100 (Thu, 14 Feb 2008) | 1 line Use a static and interned string for __subclasscheck__ and __instancecheck__ as suggested by Thomas Heller in #2115 ........ r60827 | christian.heimes | 2008-02-15 07:57:08 +0100 (Fri, 15 Feb 2008) | 1 line Fixed repr() and str() of complex numbers. Complex suffered from the same problem as floats but I forgot to test and fix them. ........ r60830 | christian.heimes | 2008-02-15 09:20:11 +0100 (Fri, 15 Feb 2008) | 2 lines Bug #2111: mmap segfaults when trying to write a block opened with PROT_READ Thanks to Thomas Herve for the fix. ........ r60835 | eric.smith | 2008-02-15 13:14:32 +0100 (Fri, 15 Feb 2008) | 1 line In PyNumber_ToBase, changed from an assert to returning an error when PyObject_Index() returns something other than an int or long. It should never be possible to trigger this, as PyObject_Index checks to make sure it returns an int or long. ........ r60837 | skip.montanaro | 2008-02-15 20:03:59 +0100 (Fri, 15 Feb 2008) | 8 lines Two new functions: * place_summary_first copies the regrtest summary to the front of the file making it easier to scan quickly for problems. * count_failures gets the actual count of the number of failing tests, not just a 1 (some failures) or 0 (no failures). ........ r60840 | raymond.hettinger | 2008-02-15 22:21:25 +0100 (Fri, 15 Feb 2008) | 1 line Update example to match the current syntax. ........ r60841 | amaury.forgeotdarc | 2008-02-15 22:22:45 +0100 (Fri, 15 Feb 2008) | 8 lines Issue #2115: __slot__ attributes setting was 10x slower. Also correct a possible crash using ABCs. This change is exactly the same as an optimisation done 5 years ago, but on slot *access*: http://svn.python.org/view?view=rev&rev=28297 ........ r60842 | amaury.forgeotdarc | 2008-02-15 22:27:44 +0100 (Fri, 15 Feb 2008) | 2 lines Temporarily let these tests pass ........ r60843 | kurt.kaiser | 2008-02-15 22:56:36 +0100 (Fri, 15 Feb 2008) | 2 lines ScriptBinding event handlers weren't returning 'break'. Patch 2050, Tal Einat. ........ r60844 | kurt.kaiser | 2008-02-15 23:25:09 +0100 (Fri, 15 Feb 2008) | 4 lines Configured selection highlighting colors were ignored; updating highlighting in the config dialog would cause non-Python files to be colored as if they were Python source; improve use of ColorDelagator. Patch 1334. Tal Einat. ........ r60845 | amaury.forgeotdarc | 2008-02-15 23:44:20 +0100 (Fri, 15 Feb 2008) | 9 lines Re-enable tests, they were failing since gc.collect() clears the various freelists. They still remain fragile. For example, a call to assertEqual currently does not make any allocation (which surprised me at first). But this can change when gc.collect also deletes the numerous "zombie frames" attached to each function. ........
2008-02-16 15:38:31 +08:00
int
PyTuple_ClearFreeList(void)
{
int freelist_size = 0;
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60568-60598,60600-60616 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60568 | christian.heimes | 2008-02-04 19:48:38 +0100 (Mon, 04 Feb 2008) | 1 line Increase debugging to investige failing tests on some build bots ........ r60570 | christian.heimes | 2008-02-04 20:30:05 +0100 (Mon, 04 Feb 2008) | 1 line Small adjustments for test compact freelist test. It's no passing on Windows as well. ........ r60573 | amaury.forgeotdarc | 2008-02-04 21:53:14 +0100 (Mon, 04 Feb 2008) | 2 lines Correct quotes in NEWS file ........ r60575 | amaury.forgeotdarc | 2008-02-04 22:45:05 +0100 (Mon, 04 Feb 2008) | 13 lines #1750076: Debugger did not step on every iteration of a while statement. The mapping between bytecode offsets and source lines (lnotab) did not contain an entry for the beginning of the loop. Now it does, and the lnotab can be a bit larger: in particular, several statements on the same line generate several entries. However, this does not bother the settrace function, which will trigger only one 'line' event. The lnotab seems to be exactly the same as with python2.4. ........ r60584 | amaury.forgeotdarc | 2008-02-05 01:26:21 +0100 (Tue, 05 Feb 2008) | 3 lines Change r60575 broke test_compile: there is no need to emit co_lnotab item when both offsets are zeros. ........ r60587 | skip.montanaro | 2008-02-05 03:32:16 +0100 (Tue, 05 Feb 2008) | 1 line sync with most recent version from python-mode sf project ........ r60588 | lars.gustaebel | 2008-02-05 12:51:40 +0100 (Tue, 05 Feb 2008) | 5 lines Issue #2004: Use mode 0700 for temporary directories and default permissions for missing directories. (will backport to 2.5) ........ r60590 | georg.brandl | 2008-02-05 13:01:24 +0100 (Tue, 05 Feb 2008) | 2 lines Convert external links to internal links. Fixes #2010. ........ r60592 | marc-andre.lemburg | 2008-02-05 15:50:40 +0100 (Tue, 05 Feb 2008) | 3 lines Keep distutils Python 2.1 compatible (or even Python 2.4 in this case). ........ r60593 | andrew.kuchling | 2008-02-05 17:06:57 +0100 (Tue, 05 Feb 2008) | 5 lines Update PEP URL. (This code is duplicated between pydoc and DocXMLRPCServer; maybe it should be refactored as a GHOP project.) 2.5.2 backport candidate. ........ r60596 | guido.van.rossum | 2008-02-05 18:32:15 +0100 (Tue, 05 Feb 2008) | 2 lines In the experimental 'Scanner' feature, the group count was set wrong. ........ r60602 | facundo.batista | 2008-02-05 20:03:32 +0100 (Tue, 05 Feb 2008) | 3 lines Issue 1951. Converts wave test cases to unittest. ........ r60603 | georg.brandl | 2008-02-05 20:07:10 +0100 (Tue, 05 Feb 2008) | 2 lines Actually run the test. ........ r60604 | skip.montanaro | 2008-02-05 20:24:30 +0100 (Tue, 05 Feb 2008) | 2 lines correct object name ........ r60605 | georg.brandl | 2008-02-05 20:58:17 +0100 (Tue, 05 Feb 2008) | 7 lines * Use the same code to profile for test_profile and test_cprofile. * Convert both to unittest. * Use the same unit testing code. * Include the expected output in both test files. * Make it possible to regenerate the expected output by running the file as a script with an '-r' argument. ........ r60613 | raymond.hettinger | 2008-02-06 02:49:00 +0100 (Wed, 06 Feb 2008) | 1 line Sync-up with Py3k work. ........ r60614 | christian.heimes | 2008-02-06 13:44:34 +0100 (Wed, 06 Feb 2008) | 1 line Limit free list of method and builtin function objects to 256 entries each. ........ r60616 | christian.heimes | 2008-02-06 14:33:44 +0100 (Wed, 06 Feb 2008) | 7 lines Unified naming convention for free lists and their limits. All free lists in Object/ are named ``free_list``, the counter ``numfree`` and the upper limit is a macro ``PyName_MAXFREELIST`` inside an #ifndef block. The chances should make it easier to adjust Python for platforms with less memory, e.g. mobile phones. ........
2008-02-06 22:31:34 +08:00
#if PyTuple_MAXSAVESIZE > 0
int i;
for (i = 1; i < PyTuple_MAXSAVESIZE; i++) {
PyTupleObject *p, *q;
p = free_list[i];
freelist_size += numfree[i];
free_list[i] = NULL;
numfree[i] = 0;
while (p) {
q = p;
p = (PyTupleObject *)(p->ob_item[0]);
PyObject_GC_Del(q);
}
}
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60790 | raymond.hettinger | 2008-02-14 10:32:45 +0100 (Thu, 14 Feb 2008) | 4 lines Add diagnostic message to help figure-out why SocketServer tests occasionally crash when trying to remove a pid that in not in the activechildren list. ........ r60791 | raymond.hettinger | 2008-02-14 11:46:57 +0100 (Thu, 14 Feb 2008) | 1 line Add fixed-point examples to the decimal FAQ ........ r60792 | raymond.hettinger | 2008-02-14 12:01:10 +0100 (Thu, 14 Feb 2008) | 1 line Improve rst markup ........ r60794 | raymond.hettinger | 2008-02-14 12:57:25 +0100 (Thu, 14 Feb 2008) | 1 line Show how to remove exponents. ........ r60795 | raymond.hettinger | 2008-02-14 13:05:42 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup. ........ r60797 | christian.heimes | 2008-02-14 13:47:33 +0100 (Thu, 14 Feb 2008) | 1 line Implemented Martin's suggestion to clear the free lists during the garbage collection of the highest generation. ........ r60798 | raymond.hettinger | 2008-02-14 13:49:37 +0100 (Thu, 14 Feb 2008) | 1 line Simplify moneyfmt() recipe. ........ r60810 | raymond.hettinger | 2008-02-14 20:02:39 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup ........ r60811 | raymond.hettinger | 2008-02-14 20:30:30 +0100 (Thu, 14 Feb 2008) | 1 line No need to register subclass of ABCs. ........ r60814 | thomas.heller | 2008-02-14 22:00:28 +0100 (Thu, 14 Feb 2008) | 1 line Try to correct a markup error that does hide the following paragraph. ........ r60822 | christian.heimes | 2008-02-14 23:40:11 +0100 (Thu, 14 Feb 2008) | 1 line Use a static and interned string for __subclasscheck__ and __instancecheck__ as suggested by Thomas Heller in #2115 ........ r60827 | christian.heimes | 2008-02-15 07:57:08 +0100 (Fri, 15 Feb 2008) | 1 line Fixed repr() and str() of complex numbers. Complex suffered from the same problem as floats but I forgot to test and fix them. ........ r60830 | christian.heimes | 2008-02-15 09:20:11 +0100 (Fri, 15 Feb 2008) | 2 lines Bug #2111: mmap segfaults when trying to write a block opened with PROT_READ Thanks to Thomas Herve for the fix. ........ r60835 | eric.smith | 2008-02-15 13:14:32 +0100 (Fri, 15 Feb 2008) | 1 line In PyNumber_ToBase, changed from an assert to returning an error when PyObject_Index() returns something other than an int or long. It should never be possible to trigger this, as PyObject_Index checks to make sure it returns an int or long. ........ r60837 | skip.montanaro | 2008-02-15 20:03:59 +0100 (Fri, 15 Feb 2008) | 8 lines Two new functions: * place_summary_first copies the regrtest summary to the front of the file making it easier to scan quickly for problems. * count_failures gets the actual count of the number of failing tests, not just a 1 (some failures) or 0 (no failures). ........ r60840 | raymond.hettinger | 2008-02-15 22:21:25 +0100 (Fri, 15 Feb 2008) | 1 line Update example to match the current syntax. ........ r60841 | amaury.forgeotdarc | 2008-02-15 22:22:45 +0100 (Fri, 15 Feb 2008) | 8 lines Issue #2115: __slot__ attributes setting was 10x slower. Also correct a possible crash using ABCs. This change is exactly the same as an optimisation done 5 years ago, but on slot *access*: http://svn.python.org/view?view=rev&rev=28297 ........ r60842 | amaury.forgeotdarc | 2008-02-15 22:27:44 +0100 (Fri, 15 Feb 2008) | 2 lines Temporarily let these tests pass ........ r60843 | kurt.kaiser | 2008-02-15 22:56:36 +0100 (Fri, 15 Feb 2008) | 2 lines ScriptBinding event handlers weren't returning 'break'. Patch 2050, Tal Einat. ........ r60844 | kurt.kaiser | 2008-02-15 23:25:09 +0100 (Fri, 15 Feb 2008) | 4 lines Configured selection highlighting colors were ignored; updating highlighting in the config dialog would cause non-Python files to be colored as if they were Python source; improve use of ColorDelagator. Patch 1334. Tal Einat. ........ r60845 | amaury.forgeotdarc | 2008-02-15 23:44:20 +0100 (Fri, 15 Feb 2008) | 9 lines Re-enable tests, they were failing since gc.collect() clears the various freelists. They still remain fragile. For example, a call to assertEqual currently does not make any allocation (which surprised me at first). But this can change when gc.collect also deletes the numerous "zombie frames" attached to each function. ........
2008-02-16 15:38:31 +08:00
#endif
return freelist_size;
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60790 | raymond.hettinger | 2008-02-14 10:32:45 +0100 (Thu, 14 Feb 2008) | 4 lines Add diagnostic message to help figure-out why SocketServer tests occasionally crash when trying to remove a pid that in not in the activechildren list. ........ r60791 | raymond.hettinger | 2008-02-14 11:46:57 +0100 (Thu, 14 Feb 2008) | 1 line Add fixed-point examples to the decimal FAQ ........ r60792 | raymond.hettinger | 2008-02-14 12:01:10 +0100 (Thu, 14 Feb 2008) | 1 line Improve rst markup ........ r60794 | raymond.hettinger | 2008-02-14 12:57:25 +0100 (Thu, 14 Feb 2008) | 1 line Show how to remove exponents. ........ r60795 | raymond.hettinger | 2008-02-14 13:05:42 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup. ........ r60797 | christian.heimes | 2008-02-14 13:47:33 +0100 (Thu, 14 Feb 2008) | 1 line Implemented Martin's suggestion to clear the free lists during the garbage collection of the highest generation. ........ r60798 | raymond.hettinger | 2008-02-14 13:49:37 +0100 (Thu, 14 Feb 2008) | 1 line Simplify moneyfmt() recipe. ........ r60810 | raymond.hettinger | 2008-02-14 20:02:39 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup ........ r60811 | raymond.hettinger | 2008-02-14 20:30:30 +0100 (Thu, 14 Feb 2008) | 1 line No need to register subclass of ABCs. ........ r60814 | thomas.heller | 2008-02-14 22:00:28 +0100 (Thu, 14 Feb 2008) | 1 line Try to correct a markup error that does hide the following paragraph. ........ r60822 | christian.heimes | 2008-02-14 23:40:11 +0100 (Thu, 14 Feb 2008) | 1 line Use a static and interned string for __subclasscheck__ and __instancecheck__ as suggested by Thomas Heller in #2115 ........ r60827 | christian.heimes | 2008-02-15 07:57:08 +0100 (Fri, 15 Feb 2008) | 1 line Fixed repr() and str() of complex numbers. Complex suffered from the same problem as floats but I forgot to test and fix them. ........ r60830 | christian.heimes | 2008-02-15 09:20:11 +0100 (Fri, 15 Feb 2008) | 2 lines Bug #2111: mmap segfaults when trying to write a block opened with PROT_READ Thanks to Thomas Herve for the fix. ........ r60835 | eric.smith | 2008-02-15 13:14:32 +0100 (Fri, 15 Feb 2008) | 1 line In PyNumber_ToBase, changed from an assert to returning an error when PyObject_Index() returns something other than an int or long. It should never be possible to trigger this, as PyObject_Index checks to make sure it returns an int or long. ........ r60837 | skip.montanaro | 2008-02-15 20:03:59 +0100 (Fri, 15 Feb 2008) | 8 lines Two new functions: * place_summary_first copies the regrtest summary to the front of the file making it easier to scan quickly for problems. * count_failures gets the actual count of the number of failing tests, not just a 1 (some failures) or 0 (no failures). ........ r60840 | raymond.hettinger | 2008-02-15 22:21:25 +0100 (Fri, 15 Feb 2008) | 1 line Update example to match the current syntax. ........ r60841 | amaury.forgeotdarc | 2008-02-15 22:22:45 +0100 (Fri, 15 Feb 2008) | 8 lines Issue #2115: __slot__ attributes setting was 10x slower. Also correct a possible crash using ABCs. This change is exactly the same as an optimisation done 5 years ago, but on slot *access*: http://svn.python.org/view?view=rev&rev=28297 ........ r60842 | amaury.forgeotdarc | 2008-02-15 22:27:44 +0100 (Fri, 15 Feb 2008) | 2 lines Temporarily let these tests pass ........ r60843 | kurt.kaiser | 2008-02-15 22:56:36 +0100 (Fri, 15 Feb 2008) | 2 lines ScriptBinding event handlers weren't returning 'break'. Patch 2050, Tal Einat. ........ r60844 | kurt.kaiser | 2008-02-15 23:25:09 +0100 (Fri, 15 Feb 2008) | 4 lines Configured selection highlighting colors were ignored; updating highlighting in the config dialog would cause non-Python files to be colored as if they were Python source; improve use of ColorDelagator. Patch 1334. Tal Einat. ........ r60845 | amaury.forgeotdarc | 2008-02-15 23:44:20 +0100 (Fri, 15 Feb 2008) | 9 lines Re-enable tests, they were failing since gc.collect() clears the various freelists. They still remain fragile. For example, a call to assertEqual currently does not make any allocation (which surprised me at first). But this can change when gc.collect also deletes the numerous "zombie frames" attached to each function. ........
2008-02-16 15:38:31 +08:00
}
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60790 | raymond.hettinger | 2008-02-14 10:32:45 +0100 (Thu, 14 Feb 2008) | 4 lines Add diagnostic message to help figure-out why SocketServer tests occasionally crash when trying to remove a pid that in not in the activechildren list. ........ r60791 | raymond.hettinger | 2008-02-14 11:46:57 +0100 (Thu, 14 Feb 2008) | 1 line Add fixed-point examples to the decimal FAQ ........ r60792 | raymond.hettinger | 2008-02-14 12:01:10 +0100 (Thu, 14 Feb 2008) | 1 line Improve rst markup ........ r60794 | raymond.hettinger | 2008-02-14 12:57:25 +0100 (Thu, 14 Feb 2008) | 1 line Show how to remove exponents. ........ r60795 | raymond.hettinger | 2008-02-14 13:05:42 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup. ........ r60797 | christian.heimes | 2008-02-14 13:47:33 +0100 (Thu, 14 Feb 2008) | 1 line Implemented Martin's suggestion to clear the free lists during the garbage collection of the highest generation. ........ r60798 | raymond.hettinger | 2008-02-14 13:49:37 +0100 (Thu, 14 Feb 2008) | 1 line Simplify moneyfmt() recipe. ........ r60810 | raymond.hettinger | 2008-02-14 20:02:39 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup ........ r60811 | raymond.hettinger | 2008-02-14 20:30:30 +0100 (Thu, 14 Feb 2008) | 1 line No need to register subclass of ABCs. ........ r60814 | thomas.heller | 2008-02-14 22:00:28 +0100 (Thu, 14 Feb 2008) | 1 line Try to correct a markup error that does hide the following paragraph. ........ r60822 | christian.heimes | 2008-02-14 23:40:11 +0100 (Thu, 14 Feb 2008) | 1 line Use a static and interned string for __subclasscheck__ and __instancecheck__ as suggested by Thomas Heller in #2115 ........ r60827 | christian.heimes | 2008-02-15 07:57:08 +0100 (Fri, 15 Feb 2008) | 1 line Fixed repr() and str() of complex numbers. Complex suffered from the same problem as floats but I forgot to test and fix them. ........ r60830 | christian.heimes | 2008-02-15 09:20:11 +0100 (Fri, 15 Feb 2008) | 2 lines Bug #2111: mmap segfaults when trying to write a block opened with PROT_READ Thanks to Thomas Herve for the fix. ........ r60835 | eric.smith | 2008-02-15 13:14:32 +0100 (Fri, 15 Feb 2008) | 1 line In PyNumber_ToBase, changed from an assert to returning an error when PyObject_Index() returns something other than an int or long. It should never be possible to trigger this, as PyObject_Index checks to make sure it returns an int or long. ........ r60837 | skip.montanaro | 2008-02-15 20:03:59 +0100 (Fri, 15 Feb 2008) | 8 lines Two new functions: * place_summary_first copies the regrtest summary to the front of the file making it easier to scan quickly for problems. * count_failures gets the actual count of the number of failing tests, not just a 1 (some failures) or 0 (no failures). ........ r60840 | raymond.hettinger | 2008-02-15 22:21:25 +0100 (Fri, 15 Feb 2008) | 1 line Update example to match the current syntax. ........ r60841 | amaury.forgeotdarc | 2008-02-15 22:22:45 +0100 (Fri, 15 Feb 2008) | 8 lines Issue #2115: __slot__ attributes setting was 10x slower. Also correct a possible crash using ABCs. This change is exactly the same as an optimisation done 5 years ago, but on slot *access*: http://svn.python.org/view?view=rev&rev=28297 ........ r60842 | amaury.forgeotdarc | 2008-02-15 22:27:44 +0100 (Fri, 15 Feb 2008) | 2 lines Temporarily let these tests pass ........ r60843 | kurt.kaiser | 2008-02-15 22:56:36 +0100 (Fri, 15 Feb 2008) | 2 lines ScriptBinding event handlers weren't returning 'break'. Patch 2050, Tal Einat. ........ r60844 | kurt.kaiser | 2008-02-15 23:25:09 +0100 (Fri, 15 Feb 2008) | 4 lines Configured selection highlighting colors were ignored; updating highlighting in the config dialog would cause non-Python files to be colored as if they were Python source; improve use of ColorDelagator. Patch 1334. Tal Einat. ........ r60845 | amaury.forgeotdarc | 2008-02-15 23:44:20 +0100 (Fri, 15 Feb 2008) | 9 lines Re-enable tests, they were failing since gc.collect() clears the various freelists. They still remain fragile. For example, a call to assertEqual currently does not make any allocation (which surprised me at first). But this can change when gc.collect also deletes the numerous "zombie frames" attached to each function. ........
2008-02-16 15:38:31 +08:00
void
PyTuple_Fini(void)
{
#if PyTuple_MAXSAVESIZE > 0
/* empty tuples are used all over the place and applications may
* rely on the fact that an empty tuple is a singleton. */
Py_CLEAR(free_list[0]);
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60790 | raymond.hettinger | 2008-02-14 10:32:45 +0100 (Thu, 14 Feb 2008) | 4 lines Add diagnostic message to help figure-out why SocketServer tests occasionally crash when trying to remove a pid that in not in the activechildren list. ........ r60791 | raymond.hettinger | 2008-02-14 11:46:57 +0100 (Thu, 14 Feb 2008) | 1 line Add fixed-point examples to the decimal FAQ ........ r60792 | raymond.hettinger | 2008-02-14 12:01:10 +0100 (Thu, 14 Feb 2008) | 1 line Improve rst markup ........ r60794 | raymond.hettinger | 2008-02-14 12:57:25 +0100 (Thu, 14 Feb 2008) | 1 line Show how to remove exponents. ........ r60795 | raymond.hettinger | 2008-02-14 13:05:42 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup. ........ r60797 | christian.heimes | 2008-02-14 13:47:33 +0100 (Thu, 14 Feb 2008) | 1 line Implemented Martin's suggestion to clear the free lists during the garbage collection of the highest generation. ........ r60798 | raymond.hettinger | 2008-02-14 13:49:37 +0100 (Thu, 14 Feb 2008) | 1 line Simplify moneyfmt() recipe. ........ r60810 | raymond.hettinger | 2008-02-14 20:02:39 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup ........ r60811 | raymond.hettinger | 2008-02-14 20:30:30 +0100 (Thu, 14 Feb 2008) | 1 line No need to register subclass of ABCs. ........ r60814 | thomas.heller | 2008-02-14 22:00:28 +0100 (Thu, 14 Feb 2008) | 1 line Try to correct a markup error that does hide the following paragraph. ........ r60822 | christian.heimes | 2008-02-14 23:40:11 +0100 (Thu, 14 Feb 2008) | 1 line Use a static and interned string for __subclasscheck__ and __instancecheck__ as suggested by Thomas Heller in #2115 ........ r60827 | christian.heimes | 2008-02-15 07:57:08 +0100 (Fri, 15 Feb 2008) | 1 line Fixed repr() and str() of complex numbers. Complex suffered from the same problem as floats but I forgot to test and fix them. ........ r60830 | christian.heimes | 2008-02-15 09:20:11 +0100 (Fri, 15 Feb 2008) | 2 lines Bug #2111: mmap segfaults when trying to write a block opened with PROT_READ Thanks to Thomas Herve for the fix. ........ r60835 | eric.smith | 2008-02-15 13:14:32 +0100 (Fri, 15 Feb 2008) | 1 line In PyNumber_ToBase, changed from an assert to returning an error when PyObject_Index() returns something other than an int or long. It should never be possible to trigger this, as PyObject_Index checks to make sure it returns an int or long. ........ r60837 | skip.montanaro | 2008-02-15 20:03:59 +0100 (Fri, 15 Feb 2008) | 8 lines Two new functions: * place_summary_first copies the regrtest summary to the front of the file making it easier to scan quickly for problems. * count_failures gets the actual count of the number of failing tests, not just a 1 (some failures) or 0 (no failures). ........ r60840 | raymond.hettinger | 2008-02-15 22:21:25 +0100 (Fri, 15 Feb 2008) | 1 line Update example to match the current syntax. ........ r60841 | amaury.forgeotdarc | 2008-02-15 22:22:45 +0100 (Fri, 15 Feb 2008) | 8 lines Issue #2115: __slot__ attributes setting was 10x slower. Also correct a possible crash using ABCs. This change is exactly the same as an optimisation done 5 years ago, but on slot *access*: http://svn.python.org/view?view=rev&rev=28297 ........ r60842 | amaury.forgeotdarc | 2008-02-15 22:27:44 +0100 (Fri, 15 Feb 2008) | 2 lines Temporarily let these tests pass ........ r60843 | kurt.kaiser | 2008-02-15 22:56:36 +0100 (Fri, 15 Feb 2008) | 2 lines ScriptBinding event handlers weren't returning 'break'. Patch 2050, Tal Einat. ........ r60844 | kurt.kaiser | 2008-02-15 23:25:09 +0100 (Fri, 15 Feb 2008) | 4 lines Configured selection highlighting colors were ignored; updating highlighting in the config dialog would cause non-Python files to be colored as if they were Python source; improve use of ColorDelagator. Patch 1334. Tal Einat. ........ r60845 | amaury.forgeotdarc | 2008-02-15 23:44:20 +0100 (Fri, 15 Feb 2008) | 9 lines Re-enable tests, they were failing since gc.collect() clears the various freelists. They still remain fragile. For example, a call to assertEqual currently does not make any allocation (which surprised me at first). But this can change when gc.collect also deletes the numerous "zombie frames" attached to each function. ........
2008-02-16 15:38:31 +08:00
(void)PyTuple_ClearFreeList();
#endif
#ifdef SHOW_TRACK_COUNT
show_track();
#endif
}
/*********************** Tuple Iterator **************************/
typedef struct {
PyObject_HEAD
Py_ssize_t it_index;
PyTupleObject *it_seq; /* Set to NULL when iterator is exhausted */
} tupleiterobject;
static void
tupleiter_dealloc(tupleiterobject *it)
{
_PyObject_GC_UNTRACK(it);
Py_XDECREF(it->it_seq);
PyObject_GC_Del(it);
}
static int
tupleiter_traverse(tupleiterobject *it, visitproc visit, void *arg)
{
Py_VISIT(it->it_seq);
return 0;
}
static PyObject *
tupleiter_next(tupleiterobject *it)
{
PyTupleObject *seq;
PyObject *item;
assert(it != NULL);
seq = it->it_seq;
if (seq == NULL)
return NULL;
assert(PyTuple_Check(seq));
if (it->it_index < PyTuple_GET_SIZE(seq)) {
item = PyTuple_GET_ITEM(seq, it->it_index);
++it->it_index;
Py_INCREF(item);
return item;
}
it->it_seq = NULL;
Py_DECREF(seq);
return NULL;
}
static PyObject *
tupleiter_len(tupleiterobject *it)
{
Py_ssize_t len = 0;
if (it->it_seq)
len = PyTuple_GET_SIZE(it->it_seq) - it->it_index;
return PyLong_FromSsize_t(len);
}
PyDoc_STRVAR(length_hint_doc, "Private method returning an estimate of len(list(it)).");
static PyObject *
tupleiter_reduce(tupleiterobject *it)
{
if (it->it_seq)
return Py_BuildValue("N(O)n", _PyObject_GetBuiltin("iter"),
it->it_seq, it->it_index);
else
return Py_BuildValue("N(())", _PyObject_GetBuiltin("iter"));
}
static PyObject *
tupleiter_setstate(tupleiterobject *it, PyObject *state)
{
Py_ssize_t index = PyLong_AsSsize_t(state);
if (index == -1 && PyErr_Occurred())
return NULL;
if (it->it_seq != NULL) {
if (index < 0)
index = 0;
else if (index > PyTuple_GET_SIZE(it->it_seq))
index = PyTuple_GET_SIZE(it->it_seq); /* exhausted iterator */
it->it_index = index;
}
Py_RETURN_NONE;
}
PyDoc_STRVAR(reduce_doc, "Return state information for pickling.");
PyDoc_STRVAR(setstate_doc, "Set state information for unpickling.");
static PyMethodDef tupleiter_methods[] = {
{"__length_hint__", (PyCFunction)tupleiter_len, METH_NOARGS, length_hint_doc},
{"__reduce__", (PyCFunction)tupleiter_reduce, METH_NOARGS, reduce_doc},
{"__setstate__", (PyCFunction)tupleiter_setstate, METH_O, setstate_doc},
{NULL, NULL} /* sentinel */
};
PyTypeObject PyTupleIter_Type = {
PyVarObject_HEAD_INIT(&PyType_Type, 0)
"tuple_iterator", /* tp_name */
sizeof(tupleiterobject), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
(destructor)tupleiter_dealloc, /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_reserved */
0, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
PyObject_GenericGetAttr, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
0, /* tp_doc */
(traverseproc)tupleiter_traverse, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
PyObject_SelfIter, /* tp_iter */
(iternextfunc)tupleiter_next, /* tp_iternext */
tupleiter_methods, /* tp_methods */
0,
};
static PyObject *
tuple_iter(PyObject *seq)
{
tupleiterobject *it;
if (!PyTuple_Check(seq)) {
PyErr_BadInternalCall();
return NULL;
}
it = PyObject_GC_New(tupleiterobject, &PyTupleIter_Type);
if (it == NULL)
return NULL;
it->it_index = 0;
Py_INCREF(seq);
it->it_seq = (PyTupleObject *)seq;
_PyObject_GC_TRACK(it);
return (PyObject *)it;
}