and/or change the signal mask of the calling thread.
Fix also tests of test_io using threads and an alarm: use pthread_sigmask() to
ensure that the SIGALRM signal is received by the main thread.
Original patch written by Jean-Paul Calderone.
thread implementation.
Skip test_lock_acquire_interruption() and test_rlock_acquire_interruption() of
test_threadsignals if a thread lock is implemented using a POSIX mutex and a
POSIX condition variable. A POSIX condition variable cannot be interrupted by a
signal (e.g. on Linux, the futex system call is restarted).
faulthandler.enable(all_threads=True) dumps the tracebacks even if it is not
possible to get the state of the current thread
Create also the get_thread_state() subfunction to factorize the code.
* Write a new test to ensure that dump_tracebacks_later() still works if
it was already called and then cancelled before
* Don't use a variable to check the status of the thread, only rely on locks
* The thread only releases cancel_event if it was able to acquire it (if
the timer was interrupted)
* The main thread always hold this lock. It is only released when
faulthandler_thread() is interrupted until this thread exits, or at Python
exit.
The thread must not receive any signal. If the thread receives a signal,
sem_timedwait() is interrupted and returns EINTR, but in this case,
PyThread_acquire_lock_timed() retries sem_timedwait() and the main thread is
not aware of the signal. The problem is that some tests expect that the main
thread receives the signal, not faulthandler handler, which should be
invisible.
On Linux, the signal looks to be received by the main thread, whereas on
FreeBSD, it can be any thread.
* faulthandler_user() displays the tracebacks of all threads even if it is
unable to get the state of the current thread
* test_faulthandler: only release the GIL in test_gil_released() check
* create check_signum() subfunction
* faulthandler_cancel_dump_tracebacks_later() is responsible to set running
to zero (so we don't need the volatile keyword anymore)
* release locks if PyThread_start_new_thread() fails
assert(thread.running == 0) was wrong in a corner case
Always release the cancel join.
Fix also another corner case: _PyFaulthandler_Fini() called after setting
running variable to zero, but before releasing the join lock.
If the thread releases the join lock before the cancel lock, the thread may
sometimes still be alive at cancel_dump_tracebacks_later() exit. So the cancel
lock may be destroyed while the thread is still alive, whereas the thread will
try to release the cancel lock, which just crash.
Another minor fix: the thread doesn't release the cancel lock if it didn't
acquire it.
bytes on Windows if the file is a TTY to workaround a Windows bug. The Windows
console returns an error (12: not enough space error) on writing into stdout if
stdout mode is binary and the length is greater than 66,000 bytes (or less,
depending on heap usage).
Windows if the file is a TTY to workaround a Windows bug. The Windows console
returns an error (12: not enough space error) on writing into stdout if
stdout mode is binary and the length is greater than 66,000 bytes (or less,
depending on heap usage).
- Use Unicode for module paths and names, self->archive and self->prefix
- Format module names and paths use %R instead of '%U' to escape surrogate
characters (PEP 383)
- Use PyImport_ExecCodeModuleObject() instead of PyImport_ExecCodeModuleEx()
- Use PyImport_AddModuleObject() instead of PyImport_AddModule()
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r88610 | antoine.pitrou | 2011-02-25 22:24:11 +0100 (ven., 25 févr. 2011) | 4 lines
Issue #10956: Buffered I/O classes retry reading or writing after a signal
has arrived and the handler returned successfully.
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svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r88550 | antoine.pitrou | 2011-02-24 21:50:49 +0100 (jeu., 24 févr. 2011) | 4 lines
Issue #11286: Raise a ValueError from calling PyMemoryView_FromBuffer with
a buffer struct having a NULL data pointer.
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svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r88486 | antoine.pitrou | 2011-02-22 00:41:12 +0100 (mar., 22 févr. 2011) | 5 lines
Issue #4681: Allow mmap() to work on file sizes and offsets larger than
4GB, even on 32-bit builds. Initial patch by Ross Lagerwall, adapted for
32-bit Windows.
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svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r87919 | alexander.belopolsky | 2011-01-10 20:21:25 -0500 (Mon, 10 Jan 2011) | 4 lines
Issue #1726687: time.mktime() will now correctly compute value one
second before epoch. Original patch by Peter Wang, reported by Martin
Blais.
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svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r87136 | r.david.murray | 2010-12-08 17:53:00 -0500 (Wed, 08 Dec 2010) | 6 lines
Have script_helper._assert_python strip refcount strings from stderr.
This makes the output of the function and those that depend on it
independent of whether or not they are being run under a debug
build.
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r87221 | r.david.murray | 2010-12-13 19:55:46 -0500 (Mon, 13 Dec 2010) | 4 lines
#10699: fix docstring for tzset: it does not take a parameter
Thanks to Garrett Cooper for the fix.
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r87256 | r.david.murray | 2010-12-14 21:19:14 -0500 (Tue, 14 Dec 2010) | 2 lines
#10705: document what the values of debuglevel are and mean.
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r87337 | r.david.murray | 2010-12-17 11:11:40 -0500 (Fri, 17 Dec 2010) | 2 lines
#10559: provide instructions for accessing sys.argv when first mentioned.
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r87338 | r.david.murray | 2010-12-17 11:29:07 -0500 (Fri, 17 Dec 2010) | 2 lines
#10454: clarify the compileall docs and help messages.
[compileall.py changes not backported.]
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r87571 | r.david.murray | 2010-12-29 14:06:48 -0500 (Wed, 29 Dec 2010) | 2 lines
Fix same typo in docs.
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r87839 | r.david.murray | 2011-01-07 16:57:25 -0500 (Fri, 07 Jan 2011) | 9 lines
Fix formatting of values with embedded newlines when rfc2047 encoding
Before this patch if a value being encoded had an embedded newline,
the line following the newline would have no leading whitespace,
and the whitespace it did have was encoded into the word. Now
the existing whitespace gets turned into a blank, the way it does
in other header reformatting, and the _continuation_ws gets added
at the beginning of the encoded line.
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r88164 | r.david.murray | 2011-01-24 14:34:58 -0500 (Mon, 24 Jan 2011) | 12 lines
#10960: fix 'stat' links, link to lstat from stat, general tidy of stat doc.
Original patch by Michal Nowikowski, with some additions and wording
fixes by me.
I changed the wording from 'Performs a stat system call' to 'Performs
the equivalent of a stat system call', since on Windows there are no
stat/lstat system calls involved. I also extended Michal's breakout
of the attributes into a list to the other paragraphs, and rearranged
the order of the paragraphs in the 'stat' docs to make it flow
better and put it in what I think is a more logical/useful order.
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svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r88337 | brett.cannon | 2011-02-04 12:24:02 -0800 (Fri, 04 Feb 2011) | 5 lines
There was a possibility that the initialization of _sqlite, when it failed,
would lead to a decref of a NULL.
Fixes issue #11110.
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(Reviewed by Georg Brandl.)
Also made similar changes to deque.reverse() though this wasn't
strictly necessary (the edge case cannot occur with two pointers
moving to meet in the middle). Making the change in reverse()
was more a matter of future-proofing.
zipimport uses ASCII encoding instead of cp497 to decode filenames, at
bootstrap, if the codec registry is not ready yet. It is still possible to have
non-ASCII filenames using the Unicode flag (UTF-8 encoding) for file entries in
the ZIP file.
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r88131 | antoine.pitrou | 2011-01-20 22:07:24 +0100 (jeu., 20 janv. 2011) | 6 lines
Issue #10955: Fix a potential crash when trying to mmap() a file past its
length. Initial patch by Ross Lagerwall.
This fixes a regression introduced by r88022.
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svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r88111 | antoine.pitrou | 2011-01-19 16:21:35 +0100 (mer., 19 janv. 2011) | 4 lines
Issue #10898: Allow compiling the posix module when the C library defines
a symbol named FSTAT.
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svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r88022 | antoine.pitrou | 2011-01-15 17:17:07 +0100 (sam., 15 janv. 2011) | 7 lines
Issue #10916: mmap should not segfault when a file is mapped using 0 as
length and a non-zero offset, and an attempt to read past the end of file
is made (IndexError is raised instead). Patch by Ross Lagerwall.
Requested by Georg.
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length and a non-zero offset, and an attempt to read past the end of file
is made (IndexError is raised instead). Patch by Ross Lagerwall.
Requested by Georg.
Fix readinst() if file.read(n) returns a bytes object longer than n:
return -1 instead of the the buffer size to raise an exception.
Simplify also the function code.
function will now format any year when time.accept2dyear is false and
will accept years >= 1000 otherwise. The year range accepted by
time.mktime and time.strftime is still system dependent, but
time.mktime will now accept full range supported by the OS. Conversion
of 2-digit years to 4-digit is deprecated.
On Windows, set the binary mode on stdin, stdout, stderr and all
io.FileIO objects (to not translate newlines, \r\n <=> \n). The Python parser
translates newlines (\r\n => \n).
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r87802 | antoine.pitrou | 2011-01-06 19:25:55 +0100 (jeu., 06 janv. 2011) | 6 lines
Issue #7858: Raise an error properly when os.utime() fails under Windows
on an existing file.
(this does not seem to be easily testable)
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and ctime functions. The year range for time.asctime is now 1900
through maxint. The range for time.ctime is the same as for
time.localtime. The string produced by these functions is longer than
24 characters when year is greater than 9999.
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r87666 | amaury.forgeotdarc | 2011-01-03 01:19:11 +0100 (lun., 03 janv. 2011) | 4 lines
#8278: In the Windows implementation of stat() and utime(),
use time_t instead of int. This gives support for dates after 2038,
at least when compiled with VS2003 or later, where time_t is 64bit.
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* In asctime and ctime, properly remove the newline if the year has more than four digits
* Consistent error message for both functions
* Fix the test comments and add a check for the removed newline
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r87442 | alexander.belopolsky | 2010-12-22 21:27:37 -0500 (Wed, 22 Dec 2010) | 1 line
Issue #10254: Fixed a crash and a regression introduced by the implementation of PRI 29.
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* Replace "bytes" by "bytes object" in struct error messages
* Document the API change in What's new in Python 3.2
* Fix test_wave
* Remove also ugly implicit conversions in test_struct
editline rl_initialize apparently discards any mappings done before it
is called, which makes tab revert to file completion instead of inserting
a tab. So now on OSX we call rl_initialize first if we are using
readline, and then re-read the users .editrc (if any) afterward so they
can still override our defaults.
Patch by Ned Deily, modified by Ronald Oussoren.
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r87238 | r.david.murray | 2010-12-14 11:20:53 -0500 (Tue, 14 Dec 2010) | 7 lines
#775964: skip YP/NIS entries instead of failing the test
Also includes doc updates mentioning that these entries may not
be retrievable via getgrnam and getgrgid.
Patch by Bobby Impollonia.
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Issue #7213: Change the close_fds default on Windows to better match the new
default on POSIX. True when possible (False if stdin/stdout/stderr are
supplied).
Update the documentation to reflect all of the above.
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r85678 | r.david.murray | 2010-10-17 21:14:06 -0400 (Sun, 17 Oct 2010) | 5 lines
#678250: Make mmap flush a noop on ACCESS_READ and ACCESS_COPY.
Patch by Sébastien Sablé. This solves a test_mmap failure on AIX.
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svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r86981 | antoine.pitrou | 2010-12-03 19:41:39 +0100 (ven., 03 déc. 2010) | 5 lines
Issue #10478: Reentrant calls inside buffered IO objects (for example by
way of a signal handler) now raise a RuntimeError instead of freezing the
current process.
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r86984 | antoine.pitrou | 2010-12-03 20:14:17 +0100 (ven., 03 déc. 2010) | 3 lines
Add an "advanced topics" section to the io doc.
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In order to create symlinks on Windows, SeCreateSymbolicLinkPrivilege
is an account privilege that is required to be held by the user. Not only
must the privilege be enabled for the account, the activated privileges for
the currently running application must be adjusted to enable the requested
privilege.
Rather than exposing an additional function to be called prior to the user's
first os.symlink call, we handle the AdjustTokenPrivileges Windows API call
internally and only expose os.symlink when the privilege escalation was
successful.
Due to the change of only exposing os.symlink when it's available, we can
go back to the original test skipping methods of checking via `hasattr`.
Amaury noticed that this was originally written in a way that would fail on
names that can't be encoded with the mbcs codec. Restructured the function
to work with wide names first then narrow names second, to fall in line
with the way other functions are written in posixmodule.c.
Additionally, the st_ino attribute of stat structures was not being filled
in. This was left out of the fix to #10027 and was noticed due to
test_tarfile failing when applying the patch for this issue. An earlier
version of the fix to #10027 included st_ino, but that attribute got lost
in the shuffle of a few review/fix cycles. All tests pass.
Note: This patch has no tests because as of now there is no way to create
links. #8879 adds that and the tests will go in there. I've manually observed
that existing links on my system function properly with this.
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r86587 | benjamin.peterson | 2010-11-20 11:24:04 -0600 (Sat, 20 Nov 2010) | 1 line
correct logic when pos is after the string #10467
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PyUnicode_AsWideChar() result is signed, whereas it was stored in a unsigned
variable, and then the test was "n >= 0" which is always true to an unsigned
number. Patch written by Hallvard B Furuseth.
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r86214 | antoine.pitrou | 2010-11-05 20:47:27 +0100 (ven., 05 nov. 2010) | 4 lines
Issue #10311: The signal module now restores errno before returning from
its low-level signal handler. Patch by Hallvard B Furuseth.
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svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r85982 | antoine.pitrou | 2010-10-30 18:19:14 +0200 (sam., 30 oct. 2010) | 4 lines
Issue #10253: FileIO leaks a file descriptor when trying to open a file
for append that isn't seekable. Patch by Brian Brazil.
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svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r85864 | antoine.pitrou | 2010-10-27 21:45:43 +0200 (mer., 27 oct. 2010) | 5 lines
In open(), only set the buffer size from st.st_blksize when it is greater
than 1. This matches the pure Python implementation in _pyio and should
fix a couple of failures on the NetBSD buildbot.
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svn+ssh://svn.python.org/python/branches/py3k
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r85536 | georg.brandl | 2010-10-15 18:26:08 +0200 (Fr, 15 Okt 2010) | 1 line
#9054: fix crash when using pyexpat with a system expat lib version 2.0.1.
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Instead of casting it to wchar_t* without conversion. It fixes a bug if Python
is compiled a non-ascii directory, different than the source code directory,
with C locale.
the locale encoding. If the LANG (and LC_ALL and LC_CTYPE) environment variable
is not set, the locale encoding is ISO-8859-1, whereas most programs (including
Python) expect UTF-8. Python already uses UTF-8 for the filesystem encoding and
to encode command line arguments on this OS.
I cannot use %U: fullname is a bytes object, not an unicode object. %A format
cannot be used, it adds 'b' (bytes) prefix. So create cant_find_module()
function to decode the filename and raise the error message.
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r85586 | gregory.p.smith | 2010-10-16 17:17:24 -0700 (Sat, 16 Oct 2010) | 2 lines
fix for netbsd.
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r85587 | gregory.p.smith | 2010-10-16 17:43:10 -0700 (Sat, 16 Oct 2010) | 3 lines
applying netbsd-wizs-mod.patch from issue5510 -
fixes for netbsd (and dragonflybsd?)
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r85596 | gregory.p.smith | 2010-10-16 19:14:36 -0700 (Sat, 16 Oct 2010) | 6 lines
Fix multiprocessing Semaphore's on netbsd5. SEM_VALUE_MAX is defined
as (~0U) on NetBSD which was causing it to appear as -1 when used as
a signed int for _multprocessing.SemLock.SEM_VALUE_MAX. This works
around the problem by substituting INT_MAX on systems where it appears
negative when used as an int.
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r85597 | gregory.p.smith | 2010-10-16 19:57:19 -0700 (Sat, 16 Oct 2010) | 2 lines
skip test_itimer_virtual on NetBSD to prevent the test suite from hanging.
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r85598 | gregory.p.smith | 2010-10-16 20:09:12 -0700 (Sat, 16 Oct 2010) | 2 lines
Avoid hanging the test on netbsd5.
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as (~0U) on NetBSD which was causing it to appear as -1 when used as
a signed int for _multprocessing.SemLock.SEM_VALUE_MAX. This works
around the problem by substituting INT_MAX on systems where it appears
negative when used as an int.
Alexander Belopolsky
Victor Stinner
Antoine Pitrou
Giampaolo Rodola'
Nadeem Vawda
Ezio Melotti
Raymond Hettinger
Senthil Kumaran
Benjamin Peterson
Kristjan Valur Jonsson
Gregory P. Smith
Ross Lagerwall
Jesus Cea
Georg Brandl
Brett Cannon
Sean Reifscheider
Martin v. Löwis
R. David Murray
Eli Bendersky
Amaury Forgeot d'Arc
Gregory P. Smith
Brian Curtin
Hirokazu Yamamoto
Stefan Krah
Matthias Klose