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r74841 | thomas.wouters | 2009-09-16 14:55:54 -0500 (Wed, 16 Sep 2009) | 23 lines
Fix issue #1590864, multiple threads and fork() can cause deadlocks, by
acquiring the import lock around fork() calls. This prevents other threads
from having that lock while the fork happens, and is the recommended way of
dealing with such issues. There are two other locks we care about, the GIL
and the Thread Local Storage lock. The GIL is obviously held when calling
Python functions like os.fork(), and the TLS lock is explicitly reallocated
instead, while also deleting now-orphaned TLS data.
This only fixes calls to os.fork(), not extension modules or embedding
programs calling C's fork() directly. Solving that requires a new set of API
functions, and possibly a rewrite of the Python/thread_*.c mess. Add a
warning explaining the problem to the documentation in the mean time.
This also changes behaviour a little on AIX. Before, AIX (but only AIX) was
getting the import lock reallocated, seemingly to avoid this very same
problem. This is not the right approach, because the import lock is a
re-entrant one, and reallocating would do the wrong thing when forking while
holding the import lock.
Will backport to 2.6, minus the tiny AIX behaviour change.
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r75223 | benjamin.peterson | 2009-10-03 15:23:24 -0500 (Sat, 03 Oct 2009) | 1 line
#7050 fix a SystemError when using tuple unpacking and augmented assignment
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r73750 | benjamin.peterson | 2009-07-01 19:45:19 -0400 (Wed, 01 Jul 2009) | 1 line
small optimization: avoid popping the current block until we have to
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r72487 | jeffrey.yasskin | 2009-05-08 17:51:06 -0400 (Fri, 08 May 2009) | 7 lines
PyCode_NewEmpty:
Most uses of PyCode_New found by http://www.google.com/codesearch?q=PyCode_New
are trying to build an empty code object, usually to put it in a dummy frame
object. This patch adds a PyCode_NewEmpty wrapper which lets the user specify
just the filename, function name, and first line number, instead of also
requiring lots of code internals.
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r72488 | jeffrey.yasskin | 2009-05-08 18:23:21 -0400 (Fri, 08 May 2009) | 13 lines
Issue 5954, PyFrame_GetLineNumber:
Most uses of PyCode_Addr2Line
(http://www.google.com/codesearch?q=PyCode_Addr2Line) are just trying to get
the line number of a specified frame, but there's no way to do that directly.
Forcing people to go through the code object makes them know more about the
guts of the interpreter than they should need.
The remaining uses of PyCode_Addr2Line seem to be getting the line from a
traceback (for example,
http://www.google.com/codesearch/p?hl=en#u_9_nDrchrw/pygame-1.7.1release/src/base.c&q=PyCode_Addr2Line),
which is replaced by the tb_lineno field. So we may be able to deprecate
PyCode_Addr2Line entirely for external use.
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r72879 | jeffrey.yasskin | 2009-05-23 19:23:01 -0400 (Sat, 23 May 2009) | 14 lines
Issue #6042:
lnotab-based tracing is very complicated and isn't documented very well. There
were at least 3 comment blocks purporting to document co_lnotab, and none did a
very good job. This patch unifies them into Objects/lnotab_notes.txt which
tries to completely capture the current state of affairs.
I also discovered that we've attached 2 layers of patches to the basic tracing
scheme. The first layer avoids jumping to instructions that don't start a line,
to avoid problems in if statements and while loops. The second layer
discovered that jumps backward do need to trace at instructions that don't
start a line, so it added extra lnotab entries for 'while' and 'for' loops, and
added a special case for backward jumps within the same line. I replaced these
patches by just treating forward and backward jumps differently.
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r73870 | r.david.murray | 2009-07-06 21:06:13 -0400 (Mon, 06 Jul 2009) | 5 lines
Issue 6070: when creating a compiled file, after copying the mode bits, on
posix zap the execute bit in case it was set on the .py file, since the
compiled files are not directly executable on posix. Patch by Marco N.
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r73879 | r.david.murray | 2009-07-07 05:54:16 -0400 (Tue, 07 Jul 2009) | 3 lines
Update issue 6070 patch to match the patch that was actually tested
on Windows.
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r73899 | r.david.murray | 2009-07-08 21:43:41 -0400 (Wed, 08 Jul 2009) | 3 lines
Conditionalize test cleanup code to eliminate traceback, which will
hopefully reveal the real problem.
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r73900 | r.david.murray | 2009-07-08 22:06:17 -0400 (Wed, 08 Jul 2009) | 2 lines
Make test work with -O.
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r73905 | r.david.murray | 2009-07-09 09:55:44 -0400 (Thu, 09 Jul 2009) | 3 lines
Specify umask in execute bit test to get consistent results
and make sure we test resetting all three execute bits.
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r73906 | r.david.murray | 2009-07-09 11:35:33 -0400 (Thu, 09 Jul 2009) | 5 lines
Curdir needs to be in the path for the test to work on all buildbots.
(I copied this from another import test, but currently this will fail if
TESTFN ends up in /tmp...see issue 2609).
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r73376 | benjamin.peterson | 2009-06-11 17:29:23 -0500 (Thu, 11 Jun 2009) | 1 line
remove check for case handled in sub-function
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r73393 | alexandre.vassalotti | 2009-06-12 13:56:57 -0500 (Fri, 12 Jun 2009) | 2 lines
Clear reference to the static PyExc_RecursionErrorInst in _PyExc_Fini.
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r73398 | alexandre.vassalotti | 2009-06-12 15:57:12 -0500 (Fri, 12 Jun 2009) | 3 lines
Add const qualifier to PyErr_SetFromErrnoWithFilename and to
PyErr_SetFromErrnoWithUnicodeFilename.
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r73400 | alexandre.vassalotti | 2009-06-12 16:43:47 -0500 (Fri, 12 Jun 2009) | 2 lines
Delete outdated make file for building the parser with MSVC 6.
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r73404 | benjamin.peterson | 2009-06-12 20:40:00 -0500 (Fri, 12 Jun 2009) | 1 line
keep the slice.step field as NULL if no step expression is given
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r73405 | benjamin.peterson | 2009-06-12 22:46:30 -0500 (Fri, 12 Jun 2009) | 1 line
prevent import statements from assigning to None
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r73409 | benjamin.peterson | 2009-06-13 08:06:21 -0500 (Sat, 13 Jun 2009) | 1 line
allow importing from a module named None if it has an 'as' clause
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r73419 | benjamin.peterson | 2009-06-13 11:19:19 -0500 (Sat, 13 Jun 2009) | 1 line
set Print.values to NULL if there are no values
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r73420 | benjamin.peterson | 2009-06-13 12:08:53 -0500 (Sat, 13 Jun 2009) | 1 line
give a better error message when deleting ()
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r73421 | benjamin.peterson | 2009-06-13 15:23:33 -0500 (Sat, 13 Jun 2009) | 1 line
when no module is given in a 'from' relative import, make ImportFrom.module NULL
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r73432 | amaury.forgeotdarc | 2009-06-14 16:20:40 -0500 (Sun, 14 Jun 2009) | 3 lines
#6227: Because of a wrong indentation, the test was not testing what it should.
Ensure that the snippet in doctest_aliases actually contains aliases.
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r73457 | benjamin.peterson | 2009-06-16 18:13:09 -0500 (Tue, 16 Jun 2009) | 1 line
add underscores
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r73460 | benjamin.peterson | 2009-06-16 22:23:04 -0500 (Tue, 16 Jun 2009) | 1 line
remove unused 'encoding' member from the compiler struct
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r73485 | benjamin.peterson | 2009-06-19 17:07:47 -0500 (Fri, 19 Jun 2009) | 1 line
remove duplicate test
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r73486 | benjamin.peterson | 2009-06-19 17:09:17 -0500 (Fri, 19 Jun 2009) | 1 line
add missing assertion #6313
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r73488 | benjamin.peterson | 2009-06-19 17:16:28 -0500 (Fri, 19 Jun 2009) | 1 line
show that this one isn't used
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r73489 | benjamin.peterson | 2009-06-19 17:21:12 -0500 (Fri, 19 Jun 2009) | 1 line
use closures
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r73501 | benjamin.peterson | 2009-06-21 18:01:07 -0500 (Sun, 21 Jun 2009) | 1 line
don't need to add the name 'lambda' as assigned
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r73502 | benjamin.peterson | 2009-06-21 18:03:36 -0500 (Sun, 21 Jun 2009) | 1 line
remove tmpname support since it's no longer used
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r73513 | benjamin.peterson | 2009-06-22 20:18:57 -0500 (Mon, 22 Jun 2009) | 1 line
fix grammar
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r73514 | benjamin.peterson | 2009-06-22 22:01:56 -0500 (Mon, 22 Jun 2009) | 1 line
remove some unused symtable constants
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r73004 | jeffrey.yasskin | 2009-05-28 22:44:31 -0500 (Thu, 28 May 2009) | 5 lines
Fix nearly all compilation warnings under Apple gcc-4.0. Tested with OPT="-g
-Wall -Wstrict-prototypes -Werror" in both --with-pydebug mode and --without.
There's still a batch of non-prototype warnings in Xlib.h that I don't know how
to fix.
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r73439 | benjamin.peterson | 2009-06-15 19:29:31 -0500 (Mon, 15 Jun 2009) | 1 line
don't mask encoding errors when decoding a string #6289
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r73496 | vinay.sajip | 2009-06-21 12:37:27 -0500 (Sun, 21 Jun 2009) | 1 line
Issue #6314: logging.basicConfig() performs extra checks on the "level" argument.
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r73509 | amaury.forgeotdarc | 2009-06-22 14:33:48 -0500 (Mon, 22 Jun 2009) | 2 lines
#4490 Fix sample code run by "python -m xml.sax.xmlreader"
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r73529 | r.david.murray | 2009-06-23 13:02:46 -0500 (Tue, 23 Jun 2009) | 4 lines
Fix issue 5230 by having pydoc's safeimport check to see if the import
error was thrown from itself in order to decide if the module can't be
found. Thanks to Lucas Prado Melo for collaborating on the fix and tests.
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r73564 | amaury.forgeotdarc | 2009-06-25 17:29:29 -0500 (Thu, 25 Jun 2009) | 6 lines
#2016 Fix a crash in function call when the **kwargs dictionary is mutated
during the function call setup.
This even gives a slight speedup, probably because tuple allocation
is faster than PyMem_NEW.
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r73576 | benjamin.peterson | 2009-06-26 18:37:06 -0500 (Fri, 26 Jun 2009) | 1 line
document is_declared_global()
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r73577 | benjamin.peterson | 2009-06-27 09:16:23 -0500 (Sat, 27 Jun 2009) | 1 line
link to extensive generator docs in the reference manual
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r73595 | ezio.melotti | 2009-06-27 18:45:39 -0500 (Sat, 27 Jun 2009) | 1 line
stmt and setup can contain multiple statements, see #5896
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r73596 | ezio.melotti | 2009-06-27 19:07:45 -0500 (Sat, 27 Jun 2009) | 1 line
Fixed a wrong apostrophe
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r73605 | georg.brandl | 2009-06-28 07:10:18 -0500 (Sun, 28 Jun 2009) | 1 line
Remove stray pychecker directive.
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r73614 | benjamin.peterson | 2009-06-28 11:08:02 -0500 (Sun, 28 Jun 2009) | 1 line
add two generic macros for peeking and setting in the stack
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r73615 | benjamin.peterson | 2009-06-28 11:14:07 -0500 (Sun, 28 Jun 2009) | 1 line
use stack macros
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