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PEP 475: don't deprecate signal.siginterrupt() anymore

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Victor Stinner 2014-07-29 23:16:04 +02:00
parent cdacf3fbad
commit db8da56c78
1 changed files with 1 additions and 21 deletions
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pep-0475.txt
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@ -14,7 +14,7 @@ Abstract
======== ========
Retry system calls failing with the ``EINTR`` error and recompute Retry system calls failing with the ``EINTR`` error and recompute
timeout if needed. Deprecate the ``signal.siginterrupt()`` function. timeout if needed.
Rationale Rationale
@ -173,23 +173,6 @@ Note: The ``selector`` module already retries on ``InterruptedError``, but it
doesn't recompute the timeout yet. doesn't recompute the timeout yet.
Deprecate siginterrupt()
------------------------
The function ``signal.siginterrupt()`` becomes useless with this PEP,
it should be deprecated. When ``signal.siginterrupt(signum, False)``
is used, some system calls don't fail with ``EINTR`` when a signal is
received. Python cannot call its signal handler and interrupt the
system call.
The function ``signal.siginterrupt()`` will be deprecated in Python
3.5.
In Python 3.6, calling ``signal.siginterrupt(signum, False)`` will
raise an exception, whereas ``signal.siginterrupt(signum, True)`` will
only emit the deprecation warning.
Backward Compatibility Backward Compatibility
====================== ======================
@ -204,9 +187,6 @@ have a reliable behaviour on all platforms and all Python versions.
For example, use a signal handle which raises an exception, or use a For example, use a signal handle which raises an exception, or use a
wakeup file descriptor. wakeup file descriptor.
Applications should not call ``signal.siginterrupt(signum, False)``
anymore, since this call will raise an exception in Python 3.6.
For applications using event loops, ``signal.set_wakeup_fd()`` is the For applications using event loops, ``signal.set_wakeup_fd()`` is the
recommanded option to handle signals. The signal handler writes signal recommanded option to handle signals. The signal handler writes signal
numbers into the file descriptor and the event loop is awaken to read numbers into the file descriptor and the event loop is awaken to read