* Improve signal delivery
Avoid using Py_AddPendingCall from signal handler, to avoid calling signal-unsafe functions.
* Remove unused function
* Improve comments
* Use _Py_atomic API for concurrency-sensitive signal state
* Add blurb
* Improve signal delivery
Avoid using Py_AddPendingCall from signal handler, to avoid calling signal-unsafe functions.
* Remove unused function
* Improve comments
* Add stress test
* Adapt for --without-threads
* Add second stress test
* Add NEWS blurb
* Address comments @haypo
* bpo-16500: Allow registering at-fork handlers
* Address Serhiy's comments
* Add doc for new C API
* Add doc for new Python-facing function
* Add NEWS entry + doc nit
Before, it was possible to get the following sequence of
events (especially on Windows, where the C-level signal handler for
SIGINT is run in a separate thread):
- SIGINT arrives
- trip_signal is called
- trip_signal writes to the wakeup fd
- the main thread wakes up from select()-or-equivalent
- the main thread checks for pending signals, but doesn't see any
- the main thread drains the wakeup fd
- the main thread goes back to sleep
- trip_signal sets is_tripped=1 and calls Py_AddPendingCall to notify
the main thread the it should run the Python-level signal handler
- the main thread doesn't notice because it's asleep
This has been causing repeated failures in the Trio test suite:
https://github.com/python-trio/trio/issues/119
* bpo-6532: Make the thread id an unsigned integer.
From C API side the type of results of PyThread_start_new_thread() and
PyThread_get_thread_ident(), the id parameter of
PyThreadState_SetAsyncExc(), and the thread_id field of PyThreadState
changed from "long" to "unsigned long".
* Restore a check in thread_get_ident().
Patch by Masayuki Yamamoto, reviewed and rebased by Erik Bray.
This is a first step on the long road toward resupporting Cygwin, which does
not provide siginfo_t.si_band.
when interrupted by a signal not in the *sigset* parameter, if the signal
handler does not raise an exception. signal.sigtimedwait() recomputes the
timeout with a monotonic clock when it is retried.
Remove test_signal.test_sigwaitinfo_interrupted() because sigwaitinfo() doesn't
raise InterruptedError anymore if it is interrupted by a signal not in its
sigset parameter.
PyStructSequence_InitType() except that it has a return value (0 on success,
-1 on error).
* PyStructSequence_InitType2() now raises MemoryError on memory allocation failure
* Fix also some calls to PyDict_SetItemString(): handle error
pthread_t is a pointer, not an integer, on FreeBSD. It should fix the following
gcc warning:
passing argument 1 of ‘pthread_kill’ makes pointer from integer without a cast
called. The test checks that SIG_UNBLOCK calls immediatly the signal handler of
the pending SIGUSR1. Improve also the tests using an exception (division by
zero) instead of a flag (a function attribute).
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.
svn+ssh://pythondev@svn.python.org/python/branches/py3k
........
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.
........
* Rename _PyImport_FindExtension() to _PyImport_FindExtensionUnicode():
the filename becomes a Unicode object instead of byte string
* Rename _PyImport_FixupExtension() to _PyImport_FixupExtensionUnicode():
the filename becomes a Unicode object instead of byte string
svn+ssh://pythondev@svn.python.org/python/branches/py3k
........
r85140 | brian.curtin | 2010-10-01 09:49:24 -0500 (Fri, 01 Oct 2010) | 4 lines
Fix#10003. Add SIGBREAK to the set of valid signals on Windows.
This fixes a regression noticed by bzr, introduced by issue #9324.
........
svn+ssh://pythondev@svn.python.org/python/branches/py3k
........
r84556 | brian.curtin | 2010-09-06 11:04:10 -0500 (Mon, 06 Sep 2010) | 7 lines
Clean up the fix to #9324 with some of the suggestions raised on python-dev
in response to the original checkin.
Move the validation from the original loop into a switch statement,
and adjust a platform check in the tests.
........
svn+ssh://pythondev@svn.python.org/python/branches/py3k
........
r83763 | brian.curtin | 2010-08-06 14:27:32 -0500 (Fri, 06 Aug 2010) | 3 lines
Fix#9324: Add parameter validation to signal.signal on Windows in order
to prevent crashes.
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r81007 | jean-paul.calderone | 2010-05-08 16:06:02 -0400 (Sat, 08 May 2010) | 1 line
Skip signal handler re-installation if it is not necessary. Issue 8354.
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r78338 | andrew.kuchling | 2010-02-22 15:04:02 -0600 (Mon, 22 Feb 2010) | 4 lines
Remove Tools/modulator, a reference to it in the docs, and a screenshot of it.
(I asked the BDFL first, and he approved removing it. The last actual bugfix
to Tools/modulator was in 2001; since then all changes have been search-and-replace:
string methods, whitespace fixes, etc.)
........
r78345 | andrew.kuchling | 2010-02-22 17:10:52 -0600 (Mon, 22 Feb 2010) | 1 line
#7706: DONT_HAVE_ERRNO_H is no longer defined by configure (after rev.46819).
........
r78346 | andrew.kuchling | 2010-02-22 17:12:00 -0600 (Mon, 22 Feb 2010) | 1 line
#7706: add include guards where they're missing; required for Windows CE
........
r78561 | andrew.kuchling | 2010-03-01 13:51:43 -0600 (Mon, 01 Mar 2010) | 1 line
#7191: describe more details of wbits parameter
........
r78562 | andrew.kuchling | 2010-03-01 14:11:57 -0600 (Mon, 01 Mar 2010) | 1 line
#7637: avoid repeated-concatenation antipattern in example
........
r78566 | barry.warsaw | 2010-03-01 15:46:51 -0600 (Mon, 01 Mar 2010) | 4 lines
Manually copy patch for bug 7250 from the release26-maint branch. I suck
because I did this in the wrong order and couldn't smack svnmerge into
submission.
........
r78574 | benjamin.peterson | 2010-03-01 17:25:13 -0600 (Mon, 01 Mar 2010) | 1 line
remove CVS id
........
r78581 | michael.foord | 2010-03-02 08:22:15 -0600 (Tue, 02 Mar 2010) | 1 line
Link correction in documentation.
........
r78634 | benjamin.peterson | 2010-03-03 15:28:25 -0600 (Wed, 03 Mar 2010) | 1 line
rephrase
........
r78660 | dirkjan.ochtman | 2010-03-04 13:21:53 -0600 (Thu, 04 Mar 2010) | 4 lines
Try to fix buildbot breakage from r78384.
Thanks bitdancer and briancurtin for the help.
........
r78675 | florent.xicluna | 2010-03-04 19:12:14 -0600 (Thu, 04 Mar 2010) | 2 lines
These line should not be there.
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r66748 | christian.heimes | 2008-10-02 21:47:50 +0200 (Thu, 02 Oct 2008) | 1 line
Fixed a couple more C99 comments and one occurence of inline.
........
+ another // comment in bytesobject
svn+ssh://pythondev@svn.python.org/python/trunk
TESTED=./python -E -tt ./Lib/test/regrtest.py -uall (both debug and opt modes)
........
r66006 | neal.norwitz | 2008-08-23 22:04:52 -0700 (Sat, 23 Aug 2008) | 25 lines
Fix:
* crashes on memory allocation failure found with failmalloc
* memory leaks found with valgrind
* compiler warnings in opt mode which would lead to invalid memory reads
* problem using wrong name in decimal module reported by pychecker
Update the valgrind suppressions file with new leaks that are small/one-time
leaks we don't care about (ie, they are too hard to fix).
TBR=barry
TESTED=./python -E -tt ./Lib/test/regrtest.py -uall (both debug and opt modes)
in opt mode:
valgrind -q --leak-check=yes --suppressions=Misc/valgrind-python.supp \
./python -E -tt ./Lib/test/regrtest.py -uall,-bsddb,-compiler \
-x test_logging test_ssl test_multiprocessing
valgrind -q --leak-check=yes --suppressions=Misc/valgrind-python.supp \
./python -E -tt ./Lib/test/regrtest.py test_multiprocessing
for i in `seq 1 4000` ; do
LD_PRELOAD=~/local/lib/libfailmalloc.so FAILMALLOC_INTERVAL=$i \
./python -c pass
done
At least some of these fixes should probably be backported to 2.5.
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r60980 | georg.brandl | 2008-02-23 16:02:28 +0100 (Sat, 23 Feb 2008) | 2 lines
#1492: allow overriding BaseHTTPServer's content type for error messages.
........
r60982 | georg.brandl | 2008-02-23 16:06:25 +0100 (Sat, 23 Feb 2008) | 2 lines
#2165: fix test_logging failure on some machines.
........
r60983 | facundo.batista | 2008-02-23 16:07:35 +0100 (Sat, 23 Feb 2008) | 6 lines
Issue 1089358. Adds the siginterrupt() function, that is just a
wrapper around the system call with the same name. Also added
test cases, doc changes and NEWS entry. Thanks Jason and Ralf
Schmitt.
........
r60984 | georg.brandl | 2008-02-23 16:11:18 +0100 (Sat, 23 Feb 2008) | 2 lines
#2067: file.__exit__() now calls subclasses' close() method.
........
r60985 | georg.brandl | 2008-02-23 16:19:54 +0100 (Sat, 23 Feb 2008) | 2 lines
More difflib examples. Written for GHOP by Josip Dzolonga.
........
r60987 | andrew.kuchling | 2008-02-23 16:41:51 +0100 (Sat, 23 Feb 2008) | 1 line
#2072: correct documentation for .rpc_paths
........
r60988 | georg.brandl | 2008-02-23 16:43:48 +0100 (Sat, 23 Feb 2008) | 2 lines
#2161: Fix opcode name.
........
r60989 | andrew.kuchling | 2008-02-23 16:49:35 +0100 (Sat, 23 Feb 2008) | 2 lines
#1119331: ncurses will just call exit() if the terminal name isn't found.
Call setupterm() first so that we get a Python exception instead of just existing.
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r59568 | facundo.batista | 2007-12-19 13:53:01 +0100 (Wed, 19 Dec 2007) | 3 lines
Some minor cleanups. Thanks Mark Dickinson.
........
r59573 | raymond.hettinger | 2007-12-19 19:13:31 +0100 (Wed, 19 Dec 2007) | 1 line
Fix issue 1661: Flags argument silently ignored in re functions with compiled regexes.
........
r59574 | guido.van.rossum | 2007-12-19 20:41:06 +0100 (Wed, 19 Dec 2007) | 7 lines
Patch #1583 by Adam Olsen.
This adds signal.set_wakeup_fd(fd) which sets a file descriptor to
which a zero byte will be written whenever a C exception handler runs.
I added a simple C API as well, PySignal_SetWakeupFd(fd).
........
r59575 | raymond.hettinger | 2007-12-19 23:14:34 +0100 (Wed, 19 Dec 2007) | 1 line
Bigger range for non-extended opargs.
........
r59576 | guido.van.rossum | 2007-12-19 23:51:13 +0100 (Wed, 19 Dec 2007) | 5 lines
Patch #1549 by Thomas Herve.
This changes the rules for when __hash__ is inherited slightly,
by allowing it to be inherited when one or more of __lt__, __le__,
__gt__, __ge__ are overridden, as long as __eq__ and __ne__ aren't.
........
r59577 | raymond.hettinger | 2007-12-20 02:25:05 +0100 (Thu, 20 Dec 2007) | 1 line
Add comments
........
r59578 | brett.cannon | 2007-12-20 11:09:52 +0100 (Thu, 20 Dec 2007) | 3 lines
Add tests for the warnings module; specifically formatwarning and showwarning.
Still need tests for warn_explicit and simplefilter.
........
r59582 | guido.van.rossum | 2007-12-20 18:28:10 +0100 (Thu, 20 Dec 2007) | 2 lines
Patch #1672 by Joseph Armbruster. Use tempdir() to get a temporary directory.
........
r59584 | georg.brandl | 2007-12-20 22:03:02 +0100 (Thu, 20 Dec 2007) | 2 lines
Fix refleak introduced in r59576.
........
r59586 | guido.van.rossum | 2007-12-21 00:48:28 +0100 (Fri, 21 Dec 2007) | 4 lines
Improve performance of built-in any()/all() by avoiding PyIter_Next() --
using a trick found in ifilter().
Feel free to backport to 2.5.
........
r59591 | andrew.kuchling | 2007-12-22 18:27:02 +0100 (Sat, 22 Dec 2007) | 1 line
Add item
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r59455 | guido.van.rossum | 2007-12-10 21:42:53 +0100 (Mon, 10 Dec 2007) | 2 lines
Remove a 2.2-ism.
........
r59459 | christian.heimes | 2007-12-10 23:28:56 +0100 (Mon, 10 Dec 2007) | 4 lines
Backport of r59456:59458 from py3k to trunk
Issue #1580: New free format floating point representation based on "Floating-Point Printer Sample Code", by Robert G. Burger. For example repr(11./5) now returns '2.2' instead of '2.2000000000000002'.
Thanks to noam for the patch! I had to modify doubledigits.c slightly to support X64 and IA64 machines on Windows. I also added the new file to the three project files.
........
r59460 | guido.van.rossum | 2007-12-11 00:00:12 +0100 (Tue, 11 Dec 2007) | 4 lines
Patch #1643738 by Ulisses Furquim -- make the is_tripped variable
in signalmodule.c more robust. Includes Martin von Loewis's suggestion
to set is_tripped after .tripped.
........
r59463 | kurt.kaiser | 2007-12-11 01:04:57 +0100 (Tue, 11 Dec 2007) | 2 lines
format_paragraph_event wasn't returning 'break'
........
r59464 | christian.heimes | 2007-12-11 01:54:34 +0100 (Tue, 11 Dec 2007) | 3 lines
The new float repr causes too much trouble and pain. I'm disabling the feature until we have sorted out the issues on all machines. 64bit machines seem to have issues and Guido has reported even worse.
Guido: It's pretty bad actually -- repr(1e5) comes out as '1.0'... Ditto for
repr(1eN) for most N... Both in 2.6 and in 3.0...
........
[ 559250 ] more POSIX signal stuff
Adds support (and docs and tests and autoconfery) for posix signal
mask handling -- sigpending, sigprocmask and sigsuspend.
Convert METH_OLDARGS -> METH_VARARGS: also PyArg_Parse -> PyArg_ParseTuple
Convert METH_OLDARGS -> METH_NOARGS: remove args parameter
Please review. All tests pass, but some modules don't have tests.
I spot checked various functions to try to make sure nothing broke.
I can't test this, so I'm just checking it in with blind faith in Andy.
I've tested that it doesn't broeak a non-Pth build on Linux.
Changes include:
- There's a --with-pth configure option.
- Instead of _GNU_PTH, we test for HAVE_PTH.
- Better signal handling.
- (The config.h.in file is regenerated in a slightly different order.)
PyOS_setsig(), instead of directly calling signal() or sigaction().
This fixes the second half of bug #110611: the mysterious ignoring of
the first ^C when readline isn't used.
handlers "return void", according to ANSI C.
Removed the new Py_RETURN_FROM_SIGNAL_HANDLER macro.
Left RETSIGTYPE in the config stuff, because it's not clear to
me that others aren't relying on it (e.g., extension modules).
#if RETSIGTYPE != void
That isn't C, and MSVC properly refuses to compile it.
Introduced new Py_RETURN_FROM_SIGNAL_HANDLER macro in pyport.h
to expand to the correct thing based on RETSIGTYPE. However,
only void is ANSI! Do we still have platforms that return int?
The Unix config mess appears to #define RETSIGTYPE by magic
without being asked to, so I assume it's "a problem" across
Unices still.
to return something if RETSIGTYPE isn't void, in functions that are defined
to return RETSIGTYPE. Work around an argumentlist mismatch ('void' vs.
'void *') by using a static wrapper function.
and a couple of functions that were missed in the previous batches. Not
terribly tested, but very carefully scrutinized, three times.
All these were found by the little findkrc.py that I posted to python-dev,
which means there might be more lurking. Cases such as this:
long
func(a, b)
long a;
long b; /* flagword */
{
and other cases where the last ; in the argument list isn't followed by a
newline and an opening curly bracket. Regexps to catch all are welcome, of
course ;)
Antoine Pietri
Nathaniel J. Smith
Antoine Pitrou
Victor Stinner
Serhiy Storchaka
Zachary Ware
Martin Panter
Christian Heimes
Steve Dower
Benjamin Peterson
Tal Einat
Nick Coghlan
Brett Cannon
Giampaolo Rodola'
Christian Heimes
Antoine Pitrou
Richard Oudkerk
Gregory P. Smith
Jesus Cea
Charles-François Natali
Ross Lagerwall
Victor Stinner
Georg Brandl
Brian Curtin
Jean-Paul Calderone
Neal Norwitz
Martin v. Löwis
Guido van Rossum
Anthony Baxter
Michael W. Hudson
Mark Hammond
Neil Schemenauer
Andrew MacIntyre
Tim Peters
Fred Drake
Andrew M. Kuchling
Thomas Wouters
Peter Schneider-Kamp
Marc-André Lemburg