Commit Graph

932 Commits

Author SHA1 Message Date
Jeremy Hylton 985eba53f5 Small function call optimization and special build option for call stats.
-DCALL_PROFILE: Count the number of function calls executed.

When this symbol is defined, the ceval mainloop and helper functions
count the number of function calls made.  It keeps detailed statistics
about what kind of object was called and whether the call hit any of
the special fast paths in the code.

Optimization:

When we take the fast_function() path, which seems to be taken for
most function calls, and there is minimal frame setup to do, avoid
call PyEval_EvalCodeEx().  The eval code ex function does a lot of
work to handle keywords args and star args, free variables,
generators, etc.  The inlined version simply allocates the frame and
copies the arguments values into the frame.

The optimization gets a little help from compile.c which adds a
CO_NOFREE flag to code objects that don't have free variables or cell
variables.  This change allows fast_function() to get into the fast
path with fewer tests.

I measure a couple of percent speedup in pystone with this change, but
there's surely more that can be done.
2003-02-05 23:13:00 +00:00
Jeremy Hylton 4f0dcc9a9a Provide __module__ attributes for functions defined in C and Python.
__module__ is the string name of the module the function was defined
in, just like __module__ of classes.  In some cases, particularly for
C functions, the __module__ may be None.

Change PyCFunction_New() from a function to a macro, but keep an
unused copy of the function around so that we don't change the binary
API.

Change pickle's save_global() to use whichmodule() if __module__ is
None, but add the __module__ logic to whichmodule() since it might be
used outside of pickle.
2003-01-31 18:33:18 +00:00
Tim Peters 5b8132ffa3 _PyLong_NumBits(): The definition of this was too specific to the quirky
needs of pickling longs.  Backed off to a definition that's much easier
to understand.  The pickler will have to work a little harder, but other
uses are more likely to be correct <0.5 wink>.

_PyLong_Sign():  New teensy function to characterize a long, as to <0, ==0,
or >0.
2003-01-31 15:52:05 +00:00
Tim Peters baefd9e552 Added new private API function _PyLong_NumBits. This will be used at the
start for the C implemention of new pickle LONG1 and LONG4 opcodes (the
linear-time way to pickle a long is to call _PyLong_AsByteArray, but
the caller has no idea how big an array to allocate, and correct
calculation is a bit subtle).
2003-01-28 20:37:45 +00:00
Raymond Hettinger 7b8e281997 SF bug #670229: doc improvement for cStringIO.h
Gernot Hillier added more detail to the internal API documentation.
2003-01-19 00:45:01 +00:00
Jack Jansen b2a57722a8 It turns out that some calls return AEDesc records that are "borrowed",
the AEDesc data shouldn't be disposed when the Python object is.

Added a C call AEDesc_NewBorrowed() to create these objects and a Python
method old=AEDesc.AutoDispose(onoff) to change auto-dispose state.
2003-01-17 23:11:17 +00:00
Neal Norwitz 07f9398dc9 Update comment, QnewFlag will go away in 3.0, not 2.3 2003-01-13 16:08:56 +00:00
Tim Peters a9bc168f95 Got rid of the internal datetimetz type. 2003-01-11 03:39:11 +00:00
Tim Peters a032d2eb7f Minor fiddling to make the next part easier. Introduced an internal
HASTZINFO() macro.
2003-01-11 00:15:54 +00:00
Tim Peters 37f398282b Got rid of the timetz type entirely. This was a bit trickier than I
hoped it would be, but not too bad.  A test had to change:
time.__setstate__() can no longer add a non-None tzinfo member to a time
object that didn't already have one, since storage for a tzinfo member
doesn't exist in that case.
2003-01-10 03:49:02 +00:00
Jason Tishler fb8595df4f Patch #661760: Cygwin auto-import module patch
The attached patch enables shared extension
modules to build cleanly under Cygwin without
moving the static initialization of certain function
pointers (i.e., ones exported from the Python
DLL core) to a module initialization function.

Additionally, this patch fixes the modules that
have been changed in the past to accommodate
Cygwin.
2003-01-06 12:41:26 +00:00
Neal Norwitz dc392e3143 Move _PyInt_Init() into pythonrun.h, since all the other _Init()
functions are here.  Suggested by Skip.
2003-01-01 15:18:32 +00:00
Neal Norwitz b2501f4cd1 Since the *_Init() are private, prefix with _, suggested by Skip 2002-12-31 03:42:13 +00:00
Guido van Rossum f122688b3f Various updates to the version number, on the eve of the 2.3a1 release. 2002-12-31 01:50:07 +00:00
Neal Norwitz c91ed400e0 SF #561244, Micro optimizations
Initialize the small integers and __builtins__ in startup.
This removes some if conditions.
Change XDECREF to DECREF for values which shouldn't be NULL.
2002-12-30 22:29:22 +00:00
Just van Rossum 52e14d640b PEP 302 + zipimport:
- new import hooks in import.c, exposed in the sys module
- new module called 'zipimport'
- various changes to allow bootstrapping from zip files

I hope I didn't break the Windows build (or anything else for that
matter), but then again, it's been sitting on sf long enough...

Regarding the latest discussions on python-dev: zipimport sets
pkg.__path__ as specified in PEP 273, and likewise, sys.path item such as
/path/to/Archive.zip/subdir/ are supported again.
2002-12-30 22:08:05 +00:00
Tim Peters 4643bd9a9c Apparently FreeBSD enables some HW floating-point exceptions by default.
This can cause core dumps when Python runs.  Python relies on the 754-
(and C99-) mandated default "non-stop" mode for FP exceptions.  This
patch from Ben Laurie disables at least one FP exception on FreeBSD at
Python startup time.
2002-12-28 21:56:08 +00:00
Neal Norwitz 93344ab036 Update/correct comment 2002-12-19 15:24:11 +00:00
Neal Norwitz 802926482c Provide mechanism to deprecate functions, types, and struct members.
It would be nice to support other compilers besides gcc.
2002-12-19 15:12:26 +00:00
Tim Peters 2a799bf77a datetime escapes the sandbox. The Windows build is all set. I leave it
to others to argue about how to build it on other platforms (on Windows
it's in its own DLL).
2002-12-16 20:18:38 +00:00
Martin v. Löwis 95292d6caa Constify filenames and scripts. Fixes #651362. 2002-12-11 14:04:59 +00:00
Martin v. Löwis 32b4a1ba62 Constify char* API. Fixes #651363. 2.2 candidate. 2002-12-11 13:21:12 +00:00
Tim Peters bca1cbc6f8 SF 548651: Fix the METH_CLASS implementation.
Most of these patches are from Thomas Heller, with long lines folded
by Tim.  The change to test_descr.py is from Guido.  See the bug report.

Not a bugfix candidate -- METH_CLASS is new in 2.3.
2002-12-09 22:56:13 +00:00
Martin v. Löwis 79acb9edfa Patch #614055: Support OpenVMS. 2002-12-06 12:48:53 +00:00
Michael W. Hudson 3131679241 James Henstridge pointed out a misleading comment. 2002-11-25 15:06:29 +00:00
Martin v. Löwis 39f59b089d Remove MALLOC_ZERO_RETURNS_NULL. 2002-11-23 09:13:40 +00:00
Jack Jansen 26897bf138 Fix for #641455: curses module doesn't build on MacOSX. It turns out the
system headers have two declarations for wchar_t, with different guard macros.

Not sure whether this is a bugfix candidate, that depends on what changed in the
curses module.
2002-11-22 16:12:57 +00:00
Walter Dörwald bf73db835a Fix PEP 293 related problems with --disable-unicode builds
reported by Michael Hudson in
http://mail.python.org/pipermail/python-dev/2002-November/030299.html
2002-11-21 20:08:33 +00:00
Neil Schemenauer 89350a41b9 Remove _Py_ResetReferences. Fixes bug #529750 "Circular reference makes
Py_Init crash".  refchain cannot be cleared because objects can live across
Py_Finalize() and Py_Initialize() if they are kept alive by circular
references.
2002-11-17 17:52:44 +00:00
Michael W. Hudson 019a78e76d Assorted patches from Armin Rigo:
[ 617309 ] getframe hook (Psyco #1)
[ 617311 ] Tiny profiling info (Psyco #2)
[ 617312 ] debugger-controlled jumps (Psyco #3)

These are forward ports from 2.2.2.
2002-11-08 12:53:11 +00:00
Martin v. Löwis 566f6afe9a Patch #512981: Update readline input stream on sys.stdin/out change. 2002-10-26 14:39:10 +00:00
Fred Drake 330f72c6df Clean up some whitespace to be consistent with Python's C style. 2002-10-17 19:48:27 +00:00
Martin v. Löwis f607bdaa77 Add PyStructSequence_UnnamedField. Add stat_float_times.
Use integers in stat tuple, optionally floats in named fields.
2002-10-16 18:27:39 +00:00
Neal Norwitz 638437ff4d SF # 607253, header file problems by Ralf W. Grosse-Kunstleve
Don't pollute the namespace when protecting against multiple header inclusion.
Prefix with Py_ and use standard naming convention Py_FILENAME_H.
2002-10-04 12:43:02 +00:00
Mark Hammond c2e85bd4e2 Patch 594001: PEP 277 - Unicode file name support for Windows NT. 2002-10-03 05:10:39 +00:00
Guido van Rossum e5de77800e Back out the previous change. It doesn't save any space on 64-bit
platforms.
2002-09-17 03:27:02 +00:00
Guido van Rossum 73d66925d9 Rearrange the members of struct _node to put shorter fields towards
the end, in the hope of saving some bytes on 64-bit machines.  (Too
bad n_nchildren can't be made an unsigned short, but
test/test_longexp.py specifically tests for more than 2**16 subtrees
at one level.)

I don't expect any binary compatibility issues here, unless someone
has an old binary of parsermodule.so saved away.
2002-09-17 03:24:09 +00:00
Neil Schemenauer 96aa0acef0 Use Py_GCC_ATTRIBUTE instead of __attribute__. Compilers other than GCC
might use __attribute__ in other ways (e.g. CodeWarrior).
2002-09-15 14:09:54 +00:00
Michael W. Hudson 02ff6a9952 A slight change to SET_LINENO-less tracing.
This makes things a touch more like 2.2.  Read the comments in
Python/ceval.c for more details.
2002-09-11 15:36:32 +00:00
Jack Jansen 47ec141963 Added include guards and C++ extern "C" {} constructs. Partial fix for #607253.
Bugfix candidate.
2002-09-10 12:32:47 +00:00
Skip Montanaro d581d7792b replace thread state objects' ticker and checkinterval fields with two
globals, _Py_Ticker and _Py_CheckInterval.  This also implements Jeremy's
shortcut in Py_AddPendingCall that zeroes out _Py_Ticker.  This allows the
test in the main loop to only test a single value.

The gory details are at

    http://python.org/sf/602191
2002-09-03 20:10:45 +00:00
Walter Dörwald 70bb0d4e65 Removed bogus PyUnicodeTranslateError_GetEncoding, as
UnicodeTranslateError doesn't have an encoding attribute.
(Spotted by Neal Norwitz)
2002-09-02 16:41:55 +00:00
Walter Dörwald 3aeb632c31 PEP 293 implemention (from SF patch http://www.python.org/sf/432401) 2002-09-02 13:14:32 +00:00
Michael W. Hudson 53d58bb369 Further SET_LINENO reomval fixes. See comments in patch #587933.
Use a slightly different strategy to determine when not to call the line
trace function.  This removes the need for the RETURN_NONE opcode, so
that's gone again.  Update docs and comments to match.

Thanks to Neal and Armin!

Also add a test suite.  This should have come with the original patch...
2002-08-30 13:09:51 +00:00
Guido van Rossum 45ec02aed1 SF patch 576101, by Oren Tirosh: alternative implementation of
interning.  I modified Oren's patch significantly, but the basic idea
and most of the implementation is unchanged.  Interned strings created
with PyString_InternInPlace() are now mortal, and you must keep a
reference to the resulting string around; use the new function
PyString_InternImmortal() to create immortal interned strings.
2002-08-19 21:43:18 +00:00
Guido van Rossum 492b46f29e Make PyDescr_IsData() a macro. It's too simple to be a function.
Should save 4% on slot lookups.
2002-08-19 18:45:37 +00:00
Michael W. Hudson dd32a91cc0 This is my patch
[ 587993 ] SET_LINENO killer

Remove SET_LINENO.  Tracing is now supported by inspecting co_lnotab.

Many sundry changes to document and adapt to this change.
2002-08-15 14:59:02 +00:00
Skip Montanaro 118ec70ea2 provide less mysterious error messages when seeing end-of-line in
single-quoted strings or end-of-file in triple-quoted strings.
closes patch 586561.
2002-08-15 01:20:16 +00:00
Barry Warsaw 9f00739551 Added a FutureWarning for constructs that will change semantically in
the future.  Changed PEP 237 hex constant warnings from
DeprecationWarning to FutureWarning.  Updated the documentation.
2002-08-14 15:51:29 +00:00
Martin v. Löwis 8a8da798a5 Patch #505705: Remove eval in pickle and cPickle. 2002-08-14 07:46:28 +00:00