mirror of https://github.com/python/cpython
Merged revisions 70908,70939,71009,71022,71036 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk ........ r70908 | jesse.noller | 2009-03-31 17:20:35 -0500 (Tue, 31 Mar 2009) | 1 line Issue 5619: Pass MS CRT debug flags into subprocesses ........ r70939 | jesse.noller | 2009-03-31 22:45:50 -0500 (Tue, 31 Mar 2009) | 1 line Fix multiprocessing.event to match the new threading.Event API ........ r71009 | jesse.noller | 2009-04-01 19:03:28 -0500 (Wed, 01 Apr 2009) | 1 line issue5545: Switch to Autoconf for multiprocessing; special thanks to Martin Lowis for help ........ r71022 | jesse.noller | 2009-04-01 21:32:55 -0500 (Wed, 01 Apr 2009) | 1 line Issue 3110: Additional protection for SEM_VALUE_MAX on platforms, thanks to Martin Loewis ........ r71036 | jesse.noller | 2009-04-01 23:22:09 -0500 (Wed, 01 Apr 2009) | 1 line Issue 3551: Raise ValueError if the size causes ERROR_NO_SYSTEM_RESOURCES ........
This commit is contained in:
Benjamin Peterson
parent
1cdd83c2ab
commit
965ce87991
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@ -708,7 +708,8 @@ Connection objects usually created using :func:`Pipe` -- see also
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Send an object to the other end of the connection which should be read
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using :meth:`recv`.
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The object must be picklable.
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The object must be picklable. Very large pickles (approximately 32 MB+,
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though it depends on the OS) may raise a ValueError exception.
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.. method:: recv()
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@ -740,7 +741,9 @@ Connection objects usually created using :func:`Pipe` -- see also
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complete message.
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If *offset* is given then data is read from that position in *buffer*. If
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*size* is given then that many bytes will be read from buffer.
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*size* is given then that many bytes will be read from buffer. Very large
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buffers (approximately 32 MB+, though it depends on the OS) may raise a
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ValueError exception
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.. method:: recv_bytes([maxlength])
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@ -834,6 +837,12 @@ object -- see :ref:`multiprocessing-managers`.
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.. class:: Event()
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A clone of :class:`threading.Event`.
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This method returns the state of the internal semaphore on exit, so it
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will always return ``True`` except if a timeout is given and the operation
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times out.
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.. versionchanged:: 2.7
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Previously, the method always returned ``None``.
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.. class:: Lock()
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@ -301,5 +301,10 @@ class Event(object):
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self._flag.release()
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else:
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self._cond.wait(timeout)
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if self._flag.acquire(False):
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self._flag.release()
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return True
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return False
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finally:
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self._cond.release()
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@ -750,20 +750,22 @@ class _TestEvent(BaseTestCase):
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# Removed temporaily, due to API shear, this does not
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# work with threading._Event objects. is_set == isSet
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#self.assertEqual(event.is_set(), False)
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self.assertEqual(event.is_set(), False)
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self.assertEqual(wait(0.0), None)
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# Removed, threading.Event.wait() will return the value of the __flag
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# instead of None. API Shear with the semaphore backed mp.Event
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self.assertEqual(wait(0.0), False)
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self.assertTimingAlmostEqual(wait.elapsed, 0.0)
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self.assertEqual(wait(TIMEOUT1), None)
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self.assertEqual(wait(TIMEOUT1), False)
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self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1)
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event.set()
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# See note above on the API differences
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# self.assertEqual(event.is_set(), True)
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self.assertEqual(wait(), None)
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self.assertEqual(event.is_set(), True)
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self.assertEqual(wait(), True)
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self.assertTimingAlmostEqual(wait.elapsed, 0.0)
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self.assertEqual(wait(TIMEOUT1), None)
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self.assertEqual(wait(TIMEOUT1), True)
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self.assertTimingAlmostEqual(wait.elapsed, 0.0)
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# self.assertEqual(event.is_set(), True)
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@ -772,7 +774,7 @@ class _TestEvent(BaseTestCase):
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#self.assertEqual(event.is_set(), False)
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self.Process(target=self._test_event, args=(event,)).start()
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self.assertEqual(wait(), None)
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self.assertEqual(wait(), True)
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#
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#
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@ -139,8 +139,12 @@ connection_sendbytes(ConnectionObject *self, PyObject *args)
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res = conn_send_string(self, buffer + offset, size);
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PyBuffer_Release(&pbuffer);
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if (res < 0)
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return mp_SetError(PyExc_IOError, res);
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if (res < 0) {
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if (PyErr_Occurred())
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return NULL;
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else
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return mp_SetError(PyExc_IOError, res);
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}
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Py_RETURN_NONE;
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}
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@ -8,6 +8,12 @@
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#include "multiprocessing.h"
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#ifdef SCM_RIGHTS
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#define HAVE_FD_TRANSFER 1
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#else
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#define HAVE_FD_TRANSFER 0
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#endif
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PyObject *create_win32_namespace(void);
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PyObject *pickle_dumps, *pickle_loads, *pickle_protocol;
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@ -257,7 +263,7 @@ PyInit__multiprocessing(void)
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Py_INCREF(&ConnectionType);
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PyModule_AddObject(module, "Connection", (PyObject*)&ConnectionType);
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#if defined(MS_WINDOWS) || HAVE_SEM_OPEN
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#if defined(MS_WINDOWS) || defined(HAVE_SEM_OPEN)
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/* Add SemLock type to module */
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if (PyType_Ready(&SemLockType) < 0)
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return NULL;
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@ -27,7 +27,7 @@
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# include <sys/socket.h>
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# include <sys/uio.h>
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# include <arpa/inet.h> /* htonl() and ntohl() */
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# if HAVE_SEM_OPEN
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# ifdef HAVE_SEM_OPEN
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# include <semaphore.h>
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typedef sem_t *SEM_HANDLE;
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# endif
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@ -45,13 +45,18 @@
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* Issue 3110 - Solaris does not define SEM_VALUE_MAX
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*/
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#ifndef SEM_VALUE_MAX
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# ifdef _SEM_VALUE_MAX
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# define SEM_VALUE_MAX _SEM_VALUE_MAX
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# else
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# define SEM_VALUE_MAX INT_MAX
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# endif
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#if defined(HAVE_SYSCONF) && defined(_SC_SEM_VALUE_MAX)
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# define SEM_VALUE_MAX sysconf(_SC_SEM_VALUE_MAX)
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#elif defined(_SEM_VALUE_MAX)
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# define SEM_VALUE_MAX _SEM_VALUE_MAX
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#elif definef(_POSIX_SEM_VALUE_MAX)
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# define SEM_VALUE_MAX _POSIX_SEM_VALUE_MAX
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#else
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# define SEM_VALUE_MAX INT_MAX
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#endif
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#endif
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/*
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* Make sure Py_ssize_t available
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*/
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@ -23,6 +23,12 @@ conn_send_string(ConnectionObject *conn, char *string, size_t length)
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Py_BEGIN_ALLOW_THREADS
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ret = WriteFile(conn->handle, string, length, &amount_written, NULL);
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Py_END_ALLOW_THREADS
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if (ret == 0 && GetLastError() == ERROR_NO_SYSTEM_RESOURCES) {
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PyErr_Format(PyExc_ValueError, "Cannnot send %" PY_FORMAT_SIZE_T "d bytes over connection", length);
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return MP_STANDARD_ERROR;
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}
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return ret ? MP_SUCCESS : MP_STANDARD_ERROR;
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}
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@ -197,11 +197,11 @@ semlock_release(SemLockObject *self, PyObject *args)
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#define SEM_GETVALUE(sem, pval) sem_getvalue(sem, pval)
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#define SEM_UNLINK(name) sem_unlink(name)
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#if HAVE_BROKEN_SEM_UNLINK
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#ifndef HAVE_SEM_UNLINK
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# define sem_unlink(name) 0
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#endif
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#if !HAVE_SEM_TIMEDWAIT
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#ifndef HAVE_SEM_TIMEDWAIT
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# define sem_timedwait(sem,deadline) sem_timedwait_save(sem,deadline,_save)
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int
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@ -348,7 +348,7 @@ semlock_release(SemLockObject *self, PyObject *args)
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}
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assert(self->count == 1);
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} else {
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#if HAVE_BROKEN_SEM_GETVALUE
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#ifdef HAVE_BROKEN_SEM_GETVALUE
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/* We will only check properly the maxvalue == 1 case */
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if (self->maxvalue == 1) {
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/* make sure that already locked */
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@ -494,7 +494,7 @@ semlock_ismine(SemLockObject *self)
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static PyObject *
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semlock_getvalue(SemLockObject *self)
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{
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#if HAVE_BROKEN_SEM_GETVALUE
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#ifdef HAVE_BROKEN_SEM_GETVALUE
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PyErr_SetNone(PyExc_NotImplementedError);
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return NULL;
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#else
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@ -512,7 +512,7 @@ semlock_getvalue(SemLockObject *self)
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static PyObject *
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semlock_iszero(SemLockObject *self)
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{
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#if HAVE_BROKEN_SEM_GETVALUE
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#ifdef HAVE_BROKEN_SEM_GETVALUE
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if (sem_trywait(self->handle) < 0) {
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if (errno == EAGAIN)
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Py_RETURN_TRUE;
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@ -1,5 +1,5 @@
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#! /bin/sh
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# From configure.in Revision: 70732 .
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# From configure.in Revision: 71261 .
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# Guess values for system-dependent variables and create Makefiles.
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# Generated by GNU Autoconf 2.61 for python 3.1.
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#
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@ -16259,6 +16259,10 @@ echo "${ECHO_T}MACHDEP_OBJS" >&6; }
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@ -16271,7 +16275,8 @@ for ac_func in alarm setitimer getitimer bind_textdomain_codeset chown \
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kill killpg lchmod lchown lstat mkfifo mknod mktime \
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mremap nice pathconf pause plock poll pthread_init \
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putenv readlink realpath \
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select setegid seteuid setgid \
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select sem_open sem_timedwait sem_getvalue sem_unlink setegid seteuid \
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setgid \
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setlocale setregid setreuid setsid setpgid setpgrp setuid setvbuf snprintf \
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sigaction siginterrupt sigrelse strftime strlcpy \
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sysconf tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
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@ -21692,6 +21697,86 @@ _ACEOF
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fi
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# Multiprocessing check for broken sem_getvalue
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{ echo "$as_me:$LINENO: checking for broken sem_getvalue" >&5
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echo $ECHO_N "checking for broken sem_getvalue... $ECHO_C" >&6; }
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if test "$cross_compiling" = yes; then
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{ { echo "$as_me:$LINENO: error: cannot run test program while cross compiling
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See \`config.log' for more details." >&5
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echo "$as_me: error: cannot run test program while cross compiling
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See \`config.log' for more details." >&2;}
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{ (exit 1); exit 1; }; }
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else
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <semaphore.h>
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#include <sys/stat.h>
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int main(void){
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sem_t *a = sem_open("/autoconf", O_CREAT, S_IRUSR|S_IWUSR, 0);
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int count;
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int res;
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if(a==SEM_FAILED){
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perror("sem_open");
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return 1;
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}
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res = sem_getvalue(a, &count);
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sem_close(a);
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return res==-1 ? 1 : 0;
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}
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_ACEOF
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rm -f conftest$ac_exeext
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if { (ac_try="$ac_link"
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case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_link") 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } && { ac_try='./conftest$ac_exeext'
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{ (case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_try") 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
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(exit $ac_status); }; }; then
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{ echo "$as_me:$LINENO: result: no" >&5
|
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echo "${ECHO_T}no" >&6; }
|
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else
|
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echo "$as_me: program exited with status $ac_status" >&5
|
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echo "$as_me: failed program was:" >&5
|
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sed 's/^/| /' conftest.$ac_ext >&5
|
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|
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( exit $ac_status )
|
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{ echo "$as_me:$LINENO: result: yes" >&5
|
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echo "${ECHO_T}yes" >&6; }
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|
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_BROKEN_SEM_GETVALUE 1
|
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_ACEOF
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|
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|
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fi
|
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rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
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fi
|
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|
||||
|
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|
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# On FreeBSD 6.2, it appears that tanh(-0.) returns 0. instead of
|
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# -0. on some architectures.
|
||||
|
|
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|||
30
configure.in
30
configure.in
|
|
@ -2388,7 +2388,8 @@ AC_CHECK_FUNCS(alarm setitimer getitimer bind_textdomain_codeset chown \
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kill killpg lchmod lchown lstat mkfifo mknod mktime \
|
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mremap nice pathconf pause plock poll pthread_init \
|
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putenv readlink realpath \
|
||||
select setegid seteuid setgid \
|
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select sem_open sem_timedwait sem_getvalue sem_unlink setegid seteuid \
|
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setgid \
|
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setlocale setregid setreuid setsid setpgid setpgrp setuid setvbuf snprintf \
|
||||
sigaction siginterrupt sigrelse strftime strlcpy \
|
||||
sysconf tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
|
||||
|
|
@ -3108,6 +3109,33 @@ then
|
|||
[Define if arithmetic is subject to x87-style double rounding issue])
|
||||
fi
|
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|
||||
# Multiprocessing check for broken sem_getvalue
|
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AC_MSG_CHECKING(for broken sem_getvalue)
|
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AC_TRY_RUN([
|
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#include <unistd.h>
|
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#include <fcntl.h>
|
||||
#include <stdio.h>
|
||||
#include <semaphore.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
int main(void){
|
||||
sem_t *a = sem_open("/autoconf", O_CREAT, S_IRUSR|S_IWUSR, 0);
|
||||
int count;
|
||||
int res;
|
||||
if(a==SEM_FAILED){
|
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perror("sem_open");
|
||||
return 1;
|
||||
|
||||
}
|
||||
res = sem_getvalue(a, &count);
|
||||
sem_close(a);
|
||||
return res==-1 ? 1 : 0;
|
||||
}
|
||||
]
|
||||
,AC_MSG_RESULT(no),
|
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AC_MSG_RESULT(yes)
|
||||
AC_DEFINE(HAVE_BROKEN_SEM_GETVALUE, 1, define to 1 if your sem_getvalue is broken.)
|
||||
)
|
||||
|
||||
# On FreeBSD 6.2, it appears that tanh(-0.) returns 0. instead of
|
||||
# -0. on some architectures.
|
||||
|
|
|
|||
|
|
@ -74,6 +74,9 @@
|
|||
/* Define if pthread_sigmask() does not work on your system. */
|
||||
#undef HAVE_BROKEN_PTHREAD_SIGMASK
|
||||
|
||||
/* define to 1 if your sem_getvalue is broken. */
|
||||
#undef HAVE_BROKEN_SEM_GETVALUE
|
||||
|
||||
/* Define this if you have the type _Bool. */
|
||||
#undef HAVE_C99_BOOL
|
||||
|
||||
|
|
@ -505,6 +508,18 @@
|
|||
/* Define to 1 if you have the `select' function. */
|
||||
#undef HAVE_SELECT
|
||||
|
||||
/* Define to 1 if you have the `sem_getvalue' function. */
|
||||
#undef HAVE_SEM_GETVALUE
|
||||
|
||||
/* Define to 1 if you have the `sem_open' function. */
|
||||
#undef HAVE_SEM_OPEN
|
||||
|
||||
/* Define to 1 if you have the `sem_timedwait' function. */
|
||||
#undef HAVE_SEM_TIMEDWAIT
|
||||
|
||||
/* Define to 1 if you have the `sem_unlink' function. */
|
||||
#undef HAVE_SEM_UNLINK
|
||||
|
||||
/* Define to 1 if you have the `setegid' function. */
|
||||
#undef HAVE_SETEGID
|
||||
|
||||
|
|
|
|||
42
setup.py
42
setup.py
|
|
@ -988,56 +988,29 @@ class PyBuildExt(build_ext):
|
|||
libraries = ['ws2_32']
|
||||
|
||||
elif platform == 'darwin': # Mac OSX
|
||||
macros = dict(
|
||||
HAVE_SEM_OPEN=1,
|
||||
HAVE_SEM_TIMEDWAIT=0,
|
||||
HAVE_FD_TRANSFER=1,
|
||||
HAVE_BROKEN_SEM_GETVALUE=1
|
||||
)
|
||||
macros = dict()
|
||||
libraries = []
|
||||
|
||||
elif platform == 'cygwin': # Cygwin
|
||||
macros = dict(
|
||||
HAVE_SEM_OPEN=1,
|
||||
HAVE_SEM_TIMEDWAIT=1,
|
||||
HAVE_FD_TRANSFER=0,
|
||||
HAVE_BROKEN_SEM_UNLINK=1
|
||||
)
|
||||
macros = dict()
|
||||
libraries = []
|
||||
|
||||
elif platform in ('freebsd4', 'freebsd5', 'freebsd6', 'freebsd7', 'freebsd8'):
|
||||
# FreeBSD's P1003.1b semaphore support is very experimental
|
||||
# and has many known problems. (as of June 2008)
|
||||
macros = dict( # FreeBSD
|
||||
HAVE_SEM_OPEN=0,
|
||||
HAVE_SEM_TIMEDWAIT=0,
|
||||
HAVE_FD_TRANSFER=1,
|
||||
)
|
||||
macros = dict()
|
||||
libraries = []
|
||||
|
||||
elif platform.startswith('openbsd'):
|
||||
macros = dict( # OpenBSD
|
||||
HAVE_SEM_OPEN=0, # Not implemented
|
||||
HAVE_SEM_TIMEDWAIT=0,
|
||||
HAVE_FD_TRANSFER=1,
|
||||
)
|
||||
macros = dict()
|
||||
libraries = []
|
||||
|
||||
elif platform.startswith('netbsd'):
|
||||
macros = dict( # at least NetBSD 5
|
||||
HAVE_SEM_OPEN=1,
|
||||
HAVE_SEM_TIMEDWAIT=0,
|
||||
HAVE_FD_TRANSFER=1,
|
||||
HAVE_BROKEN_SEM_GETVALUE=1
|
||||
)
|
||||
macros = dict()
|
||||
libraries = []
|
||||
|
||||
else: # Linux and other unices
|
||||
macros = dict(
|
||||
HAVE_SEM_OPEN=1,
|
||||
HAVE_SEM_TIMEDWAIT=1,
|
||||
HAVE_FD_TRANSFER=1
|
||||
)
|
||||
macros = dict()
|
||||
libraries = ['rt']
|
||||
|
||||
if platform == 'win32':
|
||||
|
|
@ -1052,8 +1025,7 @@ class PyBuildExt(build_ext):
|
|||
multiprocessing_srcs = [ '_multiprocessing/multiprocessing.c',
|
||||
'_multiprocessing/socket_connection.c'
|
||||
]
|
||||
|
||||
if macros.get('HAVE_SEM_OPEN', False):
|
||||
if sysconfig.get_config_var('HAVE_SEM_OPEN'):
|
||||
multiprocessing_srcs.append('_multiprocessing/semaphore.c')
|
||||
|
||||
if sysconfig.get_config_var('WITH_THREAD'):
|
||||
|
|
|
|||
Loading…
Reference in New Issue