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75 Commits

Author SHA1 Message Date
Victor Stinner 828ca59208 bpo-31653: Remove deadcode in semlock_acquire() (#4091) 
Fix the following Coverity warning:

>>>     CID 1420038:  Control flow issues  (DEADCODE)
>>>     Execution cannot reach this statement: "res = sem_trywait(self->han...".
321                     res = sem_trywait(self->handle);

The deadcode was introduced by the commit
c872d39d32.
 2017-10-23 13:57:51 -07:00
Antoine Pitrou c872d39d32 bpo-31653: Don't release the GIL if we can acquire a multiprocessing semaphore immediately (#4078) 2017-10-22 13:10:46 +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
Victor Stinner 408bfa6d96 Issue #28152: Fix -Wunreachable-code warning on clang 
Replace 0 with (0) to ignore a compiler warning about dead code on
"((int)(SEM_VALUE_MAX) < 0)": SEM_VALUE_MAX is not negative on Linux.
 2016-12-05 18:00:42 +01:00
Benjamin Peterson ed4aa83ff7 require a long long data type (closes #27961) 2016-09-05 17:44:18 -07:00
Berker Peksag bd8b443742 Issue #27591: Merge from 3.5 2016-07-23 07:13:41 +03:00
Berker Peksag 1fd497ed91 Issue #27591: Set sigint_event to NULL if _PyOS_IsMainThread() returns false 
Patch by Chris Angelico.
 2016-07-23 07:13:14 +03:00
Berker Peksag 1a269d09f6 Issue #26924: Fix Windows buildbots 
sem_unlink is defined as

    #define SEM_UNLINK(name) 0

under Windows.
 2016-05-07 21:13:50 +03:00
Berker Peksag 0ce9cd985b Issue #26924: Do not define _multiprocessing.sem_unlink under Android 
Android declares sem_unlink but doesn't implement it.
 2016-05-07 20:39:20 +03:00
Richard Oudkerk e0e65817e5 Issue #21704: Fix build error for _multiprocessing when semaphores 
are not available.  Patch by Arfrever Frehtes Taifersar Arahesis.
 2014-07-28 23:01:02 +01:00
Richard Oudkerk b988ee0632 Fix conversion from Py_ssize_t to int. 2013-09-07 17:40:45 +01:00
Richard Oudkerk 84ed9a68bd Issue #8713: Support alternative start methods in multiprocessing on Unix. 
See http://hg.python.org/sandbox/sbt#spawn
 2013-08-14 15:35:41 +01:00
Victor Stinner 640c35ce13 Reuse Py_MIN and Py_MAX macros: remove duplicate MIN/MAX macros 
multiprocessing.h: remove unused MIN and MAX macros
 2013-06-04 23:14:37 +02:00
doko@ubuntu.com 94fd53ba4e - Fix typos in the multiprocessing module. 2013-05-15 18:08:03 +02:00
doko@ubuntu.com 9df891ca41 - Fix typos in the multiprocessing module. 2013-05-15 18:06:56 +02:00
Martin v. Löwis c8c6563097 Replace WaitForMultipleObjects with WaitForMultipleObjectEx, 
for better WinRT compatibility.
 2013-01-25 14:29:13 +01:00
Martin v. Löwis b26a9b10ea Replace WaitForSingleObject with WaitForSingleObjectEx, 
for better WinRT compatibility.
 2013-01-25 14:25:48 +01:00
Richard Oudkerk 950fab07aa Issue #9586: Merge. 2013-01-01 17:40:58 +00:00
Richard Oudkerk 9b4599322d Issue #9586: Merge 2013-01-01 17:36:53 +00:00
Richard Oudkerk 9866231eab Issue #9586: Redefine SEM_FAILED on MacOSX to keep compiler happy. 2013-01-01 17:29:44 +00:00
Andrew Svetlov 2606a6f197 Issue #16719: Get rid of WindowsError. Use OSError instead 
Patch by Serhiy Storchaka.
 2012-12-19 14:33:35 +02:00
Richard Oudkerk 8fb9f4cf7b Get rid of circular import and eliminate unprefixed exported symbols 
from _multiprocessing.
 2012-10-07 18:08:47 +01:00
Richard Oudkerk 197651b4e3 Issue #10133: Make multiprocessing deallocate buffer if socket read fails. 
Patch by Hallvard B Furuseth.
 2012-06-11 15:12:12 +01:00
Richard Oudkerk 26cdf1fe5b Make multiprocessing's shared memory use memoryview instead of raw pointer 2012-05-26 22:09:59 +01:00
Richard Oudkerk 7ef909cdd7 Fix for issue 14725 for 3.2 branch 2012-05-05 20:41:23 +01:00
Richard Oudkerk 3e268aac3b Mark multiprocessing files with "Licensed to PSF under a Contributor Agreement" 
instead of BSD licence.
 2012-04-30 12:13:55 +01:00
Antoine Pitrou 23bba4ca39 Issue #11750: The Windows API functions scattered in the _subprocess and 
_multiprocessing.win32 modules now live in a single module "_winapi".
Patch by sbt.
 2012-04-18 20:51:15 +02:00
Antoine Pitrou bdb1cf1ca5 Issue #12328: Fix multiprocessing's use of overlapped I/O on Windows. 
Also, add a multiprocessing.connection.wait(rlist, timeout=None) function
for polling multiple objects at once.  Patch by sbt.

Complete changelist from sbt's patch:

* Adds a wait(rlist, timeout=None) function for polling multiple
  objects at once.  On Unix this is just a wrapper for
  select(rlist, [], [], timeout=None).

* Removes use of the SentinelReady exception and the sentinels argument
  to certain methods.  concurrent.futures.process has been changed to
  use wait() instead of SentinelReady.

* Fixes bugs concerning PipeConnection.poll() and messages of zero
  length.

* Fixes PipeListener.accept() to call ConnectNamedPipe() with
  overlapped=True.

* Fixes Queue.empty() and SimpleQueue.empty() so that they are
  threadsafe on Windows.

* Now PipeConnection.poll() and wait() will not modify the pipe except
  possibly by consuming a zero length message.  (Previously poll()
  could consume a partial message.)

* All of multiprocesing's pipe related blocking functions/methods are
  now interruptible by SIGINT on Windows.
 2012-03-05 19:28:37 +01:00
Stefan Krah a03422f5d3 Issue #14125: Fix multiprocessing refleak on Windows. Patch by sbt. 2012-02-27 13:51:02 +01:00
Charles-François Natali ed4a8fc095 Issue #8184: multiprocessing: On Windows, don't set SO_REUSEADDR on Connection 
sockets, and set FILE_FLAG_FIRST_PIPE_INSTANCE on named pipes, to make sure two
listeners can't bind to the same socket/pipe (or any existing socket/pipe).
 2012-02-08 21:15:58 +01:00
Amaury Forgeot d'Arc 7e447c8224 Fix compilation warning on Windows 2011-12-17 10:23:14 +01:00
Antoine Pitrou ab0e9f7089 Issue #10350: Read and save errno before calling a function which might overwrite it. 
Original patch by Hallvard B Furuseth.
 2011-12-16 12:29:37 +01:00
Antoine Pitrou c345ce1a69 Issue #10350: Read and save errno before calling a function which might overwrite it. 
Original patch by Hallvard B Furuseth.
 2011-12-16 12:28:32 +01:00
Charles-François Natali 10db4dec61 Issue #4028: Make multiprocessing build on SunOS. 2011-12-14 18:39:09 +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
Charles-François Natali dc863ddf79 Issue #12981: rewrite multiprocessing_{sendfd,recvfd} in Python. 2011-09-24 20:04:29 +02:00
Jesus Cea 41c98a3207 Close #13022: _multiprocessing.recvfd() doesn't check that file descriptor was actually received 2011-09-21 03:56:05 +02:00
Jesus Cea 4507e6456e Close #13022: _multiprocessing.recvfd() doesn't check that file descriptor was actually received 2011-09-21 03:53:25 +02:00
Jesus Cea ab7060e502 Close #12950: multiprocessing "test_fd_transfer" fails under OpenIndiana 2011-09-10 04:04:09 +02:00
Jesus Cea bbd8bec389 Close #12950: multiprocessing "test_fd_transfer" fails under OpenIndiana 2011-09-10 04:04:09 +02:00
Antoine Pitrou 162fee109b Issue #11657: Fix sending file descriptors over 255 over a multiprocessing Pipe. 
Also added some tests.
 2011-08-23 19:48:34 +02:00
Antoine Pitrou bcb39d4846 Issue #11657: Fix sending file descriptors over 255 over a multiprocessing Pipe. 
Also added some tests.
 2011-08-23 19:46:22 +02:00
Antoine Pitrou dd69649660 Issue #9205: concurrent.futures.ProcessPoolExecutor now detects killed 
children and raises BrokenProcessPool in such a situation.  Previously it
would reliably freeze/deadlock.
 2011-06-08 17:21:55 +02:00
Antoine Pitrou 2341f9ba00 Remove dead code from _multiprocessing 2011-05-09 20:55:03 +02:00
Antoine Pitrou 87cf220972 Issue #11743: Rewrite multiprocessing connection classes in pure Python. 2011-05-09 17:04:27 +02:00
Brett Cannon b94767ff44 Issue #8914: fix various warnings from the Clang static analyzer v254. 2011-02-22 20:15:44 +00:00
Georg Brandl c7f4af4cbe Fix compiler warnings about formatting pid_t as an int, by always casting to long. 2010-10-18 05:06:18 +00:00
Benjamin Peterson 223f091737 fix strict aliasing warnings 2010-10-17 21:12:18 +00:00
Gregory P. Smith 68e0135e41 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.
 2010-10-17 02:14:36 +00:00