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241 Commits

Author SHA1 Message Date
Nathaniel J. Smith 902ab80b59 bpo-30050: Allow disabling full buffer warnings in signal.set_wakeup_fd (#4792) 2017-12-17 23:10:18 -05:00
Antoine Pitrou f6f90ff079
bpo-30057: Fix potential missed signal in signal.signal(). (#4258) 
Bug report and patch by Jeroen Demeyer.
 2017-11-03 19:58:46 +01:00
Victor Stinner ef611c96ea bpo-30807: signal.setitimer() now uses _PyTime API (GH-3865) 
The _PyTime API handles detects overflow and is well tested.

Document that the signal will only be sent once if internal is equal
to zero.
 2017-10-13 13:49:43 -07:00
Antoine Pitrou a6a4dc816d bpo-31370: Remove support for threads-less builds (#3385) 
* Remove Setup.config
* Always define WITH_THREAD for compatibility.
 2017-09-07 18:56:24 +02:00
Antoine Pitrou 2c8a5e4c96 bpo-30808: Use _Py_atomic API for concurrency-sensitive signal state (#2417) 
* 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
 2017-07-17 12:25:19 +02:00
Antoine Pitrou 729780a810 bpo-30807: signal.setitimer() may disable the timer by mistake (#2493) 
* bpo-30807: signal.setitimer() may disable the timer by mistake

* Add NEWS blurb
 2017-06-30 10:01:05 +02:00
Antoine Pitrou c08177a1cc bpo-30703: Improve signal delivery (#2415) 
* 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
 2017-06-28 23:29:29 +02:00
Antoine Pitrou 346cbd351e bpo-16500: Allow registering at-fork handlers (#1715) 
* 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
 2017-05-27 17:50:54 +02:00
Nathaniel J. Smith 4ae0149697 bpo-30038: fix race condition in signal delivery + wakeup fd (#1082) 
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
 2017-05-16 23:12:11 +02:00
Serhiy Storchaka 55fe1ae970 bpo-30022: Get rid of using EnvironmentError and IOError (except test… (#1051) 2017-04-16 10:46:38 +03:00
Serhiy Storchaka aefa7ebf0f bpo-6532: Make the thread id an unsigned integer. (#781) 
* 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().
 2017-03-23 14:48:39 +01:00
Zachary Ware 6a6967e827 Issue #21085: add configure check for siginfo_t.si_band 
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.
 2016-10-01 00:47:27 -05:00
Martin Panter d508d00919 Issue #28139: Merge indentation fixes from 3.5 into 3.6 2016-09-17 07:59:14 +00:00
Martin Panter 6d57fe1c23 Issue #28139: Fix messed up indentation 
Also update the classmethod and staticmethod doc strings and comments to
match the RST documentation.
 2016-09-17 03:26:16 +00:00
Christian Heimes 6782b14bcb Use PyModule_AddIntMacro() in signal module 
The signal module was using old-style module initialization with
potential NULL dereferencing.

CID 1295026
 2016-09-09 00:11:45 +02:00
Steve Dower 940f33a50f Issue #23524: Finish removing _PyVerify_fd from sources 2016-09-08 11:21:54 -07:00
Benjamin Peterson ca47063998 replace Py_(u)intptr_t with the c99 standard types 2016-09-06 13:47:26 -07:00
Serhiy Storchaka 1a2b24f02d Issue #27332: Fixed the type of the first argument of module-level functions 
generated by Argument Clinic.  Patch by Petr Viktorin.
 2016-07-07 17:35:15 +03:00
Serhiy Storchaka 57a01d3a0e Issue #26200: Added Py_SETREF and replaced Py_XSETREF with Py_SETREF 
in places where Py_DECREF was used.
 2016-04-10 18:05:40 +03:00
Serhiy Storchaka 48842714b9 Issue #22570: Renamed Py_SETREF to Py_XSETREF. 2016-04-06 09:45:48 +03:00
Serhiy Storchaka 5a57ade58e Issue #20440: Massive replacing unsafe attribute setting code with special 
macro Py_SETREF.
 2015-12-24 10:35:59 +02:00
Serhiy Storchaka 6b680cd6b2 Fixed compilation error in signalmodule.c (issue #20182). 2015-05-16 15:57:56 +03:00
Tal Einat c7027b7904 Issue #20182: converted the signal module to use Argument Clinic 2015-05-16 14:14:49 +03:00
Victor Stinner e72fe3995b Issue #23836: Use _Py_write_noraise() to retry on EINTR in trip_signal() of 
signalmodule.c
 2015-04-01 18:35:22 +02:00
Victor Stinner 6aa446cf03 PEP 475: on EINTR, retry the function even if the timeout is equals to zero 
Retry:

* signal.sigtimedwait()
* threading.Lock.acquire()
* threading.RLock.acquire()
* time.sleep()
 2015-03-30 21:33:51 +02:00
Victor Stinner e134a7fe36 Issue #23752: _Py_fstat() is now responsible to raise the Python exception 
Add _Py_fstat_noraise() function when a Python exception is not welcome.
 2015-03-30 10:09:31 +02:00
Victor Stinner 869e1778c0 Issue #22117: Replace usage of _PyTime_ROUND_UP with _PyTime_ROUND_CEILING 
All these functions only accept positive timeouts, so this change has no effect
in practice.
 2015-03-30 03:49:14 +02:00
Victor Stinner 34dc0f46ae Issue #22117: The signal modules uses the new _PyTime_t API 
* Add _PyTime_AsTimespec()
* Add unit tests for _PyTime_AsTimespec()
 2015-03-27 18:19:03 +01:00
Victor Stinner a453cd8d85 Issue #23715: signal.sigwaitinfo() and signal.sigtimedwait() are now retried 
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.
 2015-03-20 12:54:28 +01:00
Steve Dower 8acde7dcce Issue #23524: Change back to using Windows errors for _Py_fstat instead of the errno shim. 2015-03-07 18:14:07 -08:00
Steve Dower f2f373f593 Issue #23152: Implement _Py_fstat() to support files larger than 2 GB on Windows. 
fstat() may fail with EOVERFLOW on files larger than 2 GB because the file size type is an signed 32-bit integer.
 2015-02-21 08:44:05 -08:00
Victor Stinner cf40a9e640 Issue #23450: Fix signal.set_wakeup_fd() on Windows 
Detect integer overflow on the file descriptor of the socket on 64-bit Python.
 2015-02-12 16:34:54 +01:00
Nick Coghlan d600951748 Issue #22869: Split pythonrun into two modules 
- interpreter startup and shutdown code moved to a new
  pylifecycle.c module
- Py_OptimizeFlag moved into the new module with the other
  global flags
 2014-11-20 21:39:37 +10:00
Victor Stinner 3822760f2d Issue #22042: signal.set_wakeup_fd(fd) now raises an exception if the file 
descriptor is in blocking mode.
 2014-08-27 12:59:44 +02:00
Victor Stinner 115171086a Issue #22018: On Windows, signal.set_wakeup_fd() now also supports sockets. 
A side effect is that Python depends to the WinSock library.
 2014-07-29 23:31:34 +02:00
Victor Stinner 1d8948e023 Backout 42ced0d023cd: oops, i didn't want to push this changeset :-/ 2014-07-24 22:51:05 +02:00
Victor Stinner d18ccd19f0 tets 2014-07-24 21:58:53 +02:00
Victor Stinner 0bffc94d57 Issue #22018: signal.set_wakeup_fd() now raises an OSError instead of a 
ValueError on fstat() failure.
 2014-07-21 16:28:54 +02:00
Brett Cannon 815a6f38a6 merge along w/ fix for issue #2107 (commit c9239171e429) 2014-04-04 10:20:28 -04:00
Giampaolo Rodola' e09fb7198a fix #21076: turn signal module constants into enums 2014-04-04 15:34:17 +02:00
Victor Stinner 3c1b379ebd Issue #20320: select.select() and select.kqueue.control() now round the timeout 
aways from zero, instead of rounding towards zero.

It should make test_asyncio more reliable, especially test_timeout_rounding() test.
 2014-02-17 00:02:43 +01:00
Serhiy Storchaka dfe98a102e Issue #20437: Fixed 22 potential bugs when deleting objects references. 2014-02-09 13:46:20 +02:00
Serhiy Storchaka 505ff755d7 Issue #20437: Fixed 21 potential bugs when deleting objects references. 2014-02-09 13:33:53 +02:00
Christian Heimes 44ed3de6f4 Issue #18774: Remove last bits of GNU PTH thread code, patch by Vajrasky Kok. 2013-08-18 12:43:24 +02:00
Antoine Pitrou 6f6ec37838 Issue #16105: When a signal handler fails to write to the file descriptor registered with ``signal.set_wakeup_fd()``, report an exception instead of ignoring the error. 2013-08-17 20:27:56 +02:00
Victor Stinner 1c8f059019 Issue #18520: Add a new PyStructSequence_InitType2() function, same than 
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
 2013-07-22 22:24:54 +02:00
Antoine Pitrou 52c5f85cf9 Issue #14173: Avoid crashing when reading a signal handler during interpreter shutdown. 2013-05-04 23:21:09 +02:00
Antoine Pitrou c8c952ce2a Issue #14173: Avoid crashing when reading a signal handler during interpreter shutdown. 2013-05-04 23:16:59 +02:00
Richard Oudkerk 245bbee0d5 Merge. 2013-04-17 21:24:58 +01:00
Antoine Pitrou cf8a1e51ec - Issue #17782: Fix undefined behaviour on platforms where ``struct timespec``'s "tv_nsec" member is not a C long. 2013-04-17 22:06:44 +02:00
Antoine Pitrou 7faf70512a Issue #17591: Use lowercase filenames when including Windows header files. 
Patch by Roumen Petrov.
 2013-03-31 22:48:04 +02:00
Serhiy Storchaka c2d020090b Issue #4591: Uid and gid values larger than 2**31 are supported now. 2013-02-10 22:03:08 +02:00
Serhiy Storchaka 7cf5599346 Issue #4591: Uid and gid values larger than 2**31 are supported now. 2013-02-10 21:56:49 +02:00
Brett Cannon 611afc1b3f Issue #17098: all modules should have __loader__ 2013-02-01 14:07:28 -05:00
Brett Cannon 0ecd30b4af Issue #17098: Make sure every module has __loader__ defined. 
Thanks to Thomas Heller for the bug report.
 2013-02-01 14:04:12 -05:00
Benjamin Peterson 9f30abd393 merge 3.3 2013-01-18 00:10:37 -05:00
Benjamin Peterson c68a4a048c check windows fd validity (closes #16992) 2013-01-18 00:10:24 -05:00
Gregory P. Smith 0b83224c0d Fixes issue #9535: Fix pending signals that have been received but not 
yet handled by Python to not persist after os.fork() in the child process.
 2012-11-10 20:34:41 -08:00
Gregory P. Smith 34b14951ee Fixes issue #9535: Fix pending signals that have been received but not 
yet handled by Python to not persist after os.fork() in the child process.
 2012-11-10 20:33:39 -08:00
Gregory P. Smith 9463e3ac8b Fixes issue #9535: Fix pending signals that have been received but not 
yet handled by Python to not persist after os.fork() in the child process.
 2012-11-10 20:33:07 -08:00
Jesus Cea 14c81aba50 #16135: Removal of OS/2 support (Modules/*) 2012-10-05 02:11:36 +02:00
Victor Stinner 643cd68ea4 Issue #13964: signal.sigtimedwait() timeout is now a float instead of a tuple 
Add a private API to convert an int or float to a C timespec structure.
 2012-03-02 22:54:03 +01:00
Charles-François Natali 3f32fc87ad Merge. 2012-02-02 20:38:10 +01:00
Charles-François Natali 6d0d24e359 Issue #13817: After fork(), reinit the ad-hoc TLS implementation earlier to fix 
a random deadlock when fork() is called in a multithreaded process in debug
mode, and make PyOS_AfterFork() more robust.
 2012-02-02 20:31:42 +01:00
Antoine Pitrou 6dd381eb62 Issue #12328: Under Windows, refactor handling of Ctrl-C events and 
make _multiprocessing.win32.WaitForMultipleObjects interruptible when
the wait_flag parameter is false.  Patch by sbt.
 2011-11-21 21:26:56 +01:00
Ross Lagerwall bc808224b6 Issue #12303: Add sigwaitinfo() and sigtimedwait() to the signal module. 2011-06-25 12:13:40 +02:00
Victor Stinner 10c30d6764 Issue #8407: signal.sigwait() releases the GIL 
Initial patch by Charles-François Natali.
 2011-06-10 01:39:53 +02:00
Victor Stinner c13ef66649 Issue #8407: Fix the signal handler of the signal module: if it is called 
twice, it now writes the number of the second signal into the wakeup fd.
 2011-05-25 02:35:58 +02:00
Victor Stinner aedb2823fd (Merge 3.2) Issue #12060: Use sig_atomic_t type and volatile keyword in the 
signal module. Patch written by Charles-François Natali.
 2011-05-15 10:27:49 +02:00
Victor Stinner 5ebfe6d9a9 (Merge 3.1) Issue #12060: Use sig_atomic_t type and volatile keyword in the 
signal module. Patch written by Charles-François Natali.
 2011-05-15 10:27:09 +02:00
Victor Stinner 2ec6b176bd Issue #12060: Use sig_atomic_t type and volatile keyword in the signal module. 
Patch written by Charles-François Natali.
 2011-05-15 10:21:59 +02:00
Victor Stinner 388196ed72 Issue #12011: signal.signal() and signal.siginterrupt() raise an OSError, 
instead of a RuntimeError: OSError has an errno attribute.
 2011-05-10 17:13:00 +02:00
Victor Stinner 86e104a6ab Issue #8407: Use an explicit cast for FreeBSD 
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
 2011-05-09 14:45:38 +02:00
Victor Stinner d49b1f14de Issue #8407: The signal handler writes the signal number as a single byte 
instead of a nul byte into the wakeup file descriptor. So it is possible to
wait more than one signal and know which signals were raised.
 2011-05-08 02:03:15 +02:00
Victor Stinner b3e7219abf Issue #8407: Add pthread_kill(), sigpending() and sigwait() functions to the 
signal module.
 2011-05-08 01:46:11 +02:00
Victor Stinner 35b300c5fd Issue #8407: signal.pthread_sigmask() returns a set instead of a list 
Update the doc. Refactor also related tests.
 2011-05-04 13:20:35 +02:00
Victor Stinner d0e516db50 Issue #8407: pthread_sigmask() checks immediatly if signal handlers have been 
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).
 2011-05-03 14:57:12 +02:00
Victor Stinner 72c53b5dcc cleanup signalmodule.c: use PyModule_AddIntMacro() 2011-05-02 16:15:43 +02:00
Victor Stinner a929335961 Issue #8407, issue #11859: Add signal.pthread_sigmask() function to fetch 
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.
 2011-04-30 15:21:58 +02:00
Antoine Pitrou 0c759febb6 Issue #10517: After fork(), reinitialize the TLS used by the PyGILState_* 
APIs, to avoid a crash with the pthread implementation in RHEL 5.  Patch
by Charles-François Natali.
 2011-04-27 19:28:05 +02:00
Victor Stinner 27026f87d8 (Merge 3.1) Issue #11768: The signal handler of the signal module only calls 
Py_AddPendingCall() for the first signal to fix a deadlock on reentrant or
parallel calls. PyErr_SetInterrupt() writes also into the wake up file.
 2011-04-18 16:28:39 +02:00
Victor Stinner 6c9b35bfe2 Issue #11768: The signal handler of the signal module only calls 
Py_AddPendingCall() for the first signal to fix a deadlock on reentrant or
parallel calls. PyErr_SetInterrupt() writes also into the wake up file.
 2011-04-18 16:25:56 +02:00
Georg Brandl e5b99f0fb3 Remove redundant includes of headers that are already included by Python.h. 2010-11-30 09:41:01 +00:00
Antoine Pitrou 8d46e4267c Merged revisions 86214 via svnmerge from 
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.
........
 2010-11-05 19:54:58 +00:00
Antoine Pitrou 39a6591507 Issue #10311: The signal module now restores errno before returning from 
its low-level signal handler.  Patch by Hallvard B Furuseth.
 2010-11-05 19:47:27 +00:00
Victor Stinner 49d3f2514b _PyImport_FixupExtension() and _PyImport_FindExtension() uses FS encoding 
* 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
 2010-10-17 01:24:53 +00:00
Brian Curtin eccd4d910d Merged revisions 85140 via svnmerge from 
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.
........
 2010-10-01 15:09:53 +00:00
Brian Curtin 9e88b5aeee Fix #10003. Add SIGBREAK to the set of valid signals on Windows. 
This fixes a regression noticed by bzr, introduced by issue #9324.
 2010-10-01 14:49:24 +00:00
Brian Curtin 912443c861 Merged revisions 84556 via svnmerge from 
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.
........
 2010-09-06 16:10:04 +00:00
Brian Curtin c734b312cb 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.
 2010-09-06 16:04:10 +00:00
Brian Curtin b42a21df11 Include Windows.h for BOOL. 2.7 and 3.2 already had this due to 
a feature 3.1 doesn't have. Followup to #9324.
 2010-08-06 19:52:50 +00:00
Brian Curtin 3f004b1cc0 Merged revisions 83763 via svnmerge from 
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.
........
 2010-08-06 19:34:52 +00:00
Brian Curtin ef9efbd69c Fix #9324: Add parameter validation to signal.signal on Windows in order 
to prevent crashes.
 2010-08-06 19:27:32 +00:00
Jean-Paul Calderone 6ed7ac48ec Revert r82089. Commit was intended for a branch. 2010-06-19 19:58:37 +00:00
Jean-Paul Calderone 867c435460 merge forward from the python 2.x branch 2010-06-19 19:54:48 +00:00
Antoine Pitrou 7f14f0d8a0 Recorded merge of revisions 81032 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/branches/py3k

................
  r81032 | antoine.pitrou | 2010-05-09 17:52:27 +0200 (dim., 09 mai 2010) | 9 lines

  Recorded merge of revisions 81029 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines

    Untabify C files. Will watch buildbots.
  ........
................
 2010-05-09 16:14:21 +00:00
Antoine Pitrou f95a1b3c53 Recorded merge of revisions 81029 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines

  Untabify C files. Will watch buildbots.
........
 2010-05-09 15:52:27 +00:00
Jean-Paul Calderone 9c39bc7265 Merged revisions 81016 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/branches/py3k

................
  r81016 | jean-paul.calderone | 2010-05-08 23:18:57 -0400 (Sat, 08 May 2010) | 9 lines

  Merged revisions 81007 via svnmerge from
  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.
  ........
................
 2010-05-09 03:25:16 +00:00
Jean-Paul Calderone 6f137ca469 Merged revisions 81007 via svnmerge from 
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.
........
 2010-05-09 03:18:57 +00:00
Brian Curtin eb24d7498f Port #1220212 (os.kill for Win32) to py3k. 2010-04-12 17:16:38 +00:00