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- Retry interrupted system calls (#1230773) 

- Rearrange the build process to match current packaging recommendations
This commit is contained in:
David Shea 2015-06-12 09:31:08 -04:00
parent ae83149884
commit 3457e9efa9
2 changed files with 136 additions and 10 deletions
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44
python-pyudev.spec
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@ -1,13 +1,18 @@
Name: python-pyudev
Version: 0.16.1
Release: 2%{?dist}
Release: 3%{?dist}
Summary: A libudev binding
License: LGPLv2+
URL: http://pypi.python.org/pypi/pyudev
Source0: http://pypi.python.org/packages/source/p/pyudev/pyudev-%{version}.tar.gz
# Based on 0113ccdbba1aef69f3f890fd72622f24d79d907a in github.com/lunaryorn/pyudev.git
Patch0: pyudev-0.16.1-global-libudev.patch
# Based on af9ba7b27478274a2f5f9676de662b079a3a8c22 in github.com/dashea/pyudev.git
Patch1: pyudev-eintr-retry.patch
BuildArch: noarch
BuildRequires: python2-devel
@ -43,23 +48,38 @@ versions of udev as found on dated Linux systems may work, but are not
officially supported.
%prep
%setup -q -n pyudev-%{version}
%patch0 -p1 -b .global-libudev
%setup -qc
mv pyudev-%{version} python2
pushd python2
rm -rf pyudev.egg-info
rm -rf %{py3dir}
cp -a . %{py3dir}
%patch0 -p1 -b .global-libudev
%patch1 -p1 -b .eintr-retry
# Copy common doc files to the top directory
cp -pr COPYING README.rst CHANGES.rst ../
popd
cp -a python2 python3
%build
pushd python2
%{__python2} setup.py build
popd
( cd %{py3dir} && %{__python3} setup.py build )
pushd python3
%{__python3} setup.py build
popd
%install
%{__python} setup.py install --skip-build --root $RPM_BUILD_ROOT
pushd python2
%{__python2} setup.py install --skip-build --root $RPM_BUILD_ROOT
popd
( cd %{py3dir} && %{__python3} setup.py install --skip-build --root $RPM_BUILD_ROOT )
pushd python3
%{__python3} setup.py install --skip-build --root $RPM_BUILD_ROOT
popd
%files
%license COPYING
@ -74,10 +94,14 @@ cp -a . %{py3dir}
%{python3_sitelib}/pyudev-%{version}-*.egg-info
%changelog
* Wed Jan 28 2015 David Shea <dshea@redhat.com> - 0.16-2
* Fri Jun 12 2015 David Shea <dshea@redhat.com> - 0.16.1-3
- Retry interrupted system calls (#1230773)
- Rearrange the build process to match current packaging recommendations
* Wed Jan 28 2015 David Shea <dshea@redhat.com> - 0.16.1-2
- Use %%license for the license file
* Wed Dec 10 2014 David Shea <dshea@redhat.com> - 0.16-1
* Wed Dec 10 2014 David Shea <dshea@redhat.com> - 0.16.1-1
- Update to pyudev-0.16.1 (#880644)
- Apply a patch from upstream to remove a global reference to libudev (#1170337)

102
pyudev-eintr-retry.patch Normal file
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@ -0,0 +1,102 @@
diff -purN pyudev-0.16.1.orig/pyudev/monitor.py pyudev-0.16.1/pyudev/monitor.py
--- pyudev-0.16.1.orig/pyudev/monitor.py 2015-06-12 09:36:21.427469657 -0400
+++ pyudev-0.16.1/pyudev/monitor.py 2015-06-12 09:37:05.483447685 -0400
@@ -34,7 +34,7 @@ import select
from threading import Thread
from contextlib import closing
-from pyudev._util import ensure_byte_string
+from pyudev._util import ensure_byte_string, eintr_retry_call
from pyudev.core import Device
@@ -337,7 +337,7 @@ class Monitor(object):
.. versionadded:: 0.16
"""
- rlist, _, _ = select.select([self], [], [], timeout)
+ rlist, _, _ = eintr_retry_call(select.select, [self], [], [], timeout)
if self in rlist:
return self._receive_device()
else:
@@ -407,7 +407,7 @@ class Monitor(object):
with closing(select.epoll()) as notifier:
notifier.register(self, select.EPOLLIN)
while True:
- events = notifier.poll()
+ events = eintr_retry_call(notifier.poll)
for event in events:
device = self._receive_device()
yield device.action, device
@@ -503,14 +503,14 @@ class MonitorObserver(Thread):
# and on the monitor
notifier.register(self.monitor, select.EPOLLIN)
while True:
- for fd, _ in notifier.poll():
+ for fd, _ in eintr_retry_call(notifier.poll):
if fd == self._stop_event_source:
# in case of a stop event, close our pipe side, and
# return from the thread
os.close(self._stop_event_source)
return
else:
- device = self.monitor.poll(timeout=0)
+ device = eintr_retry_call(self.monitor.poll, timeout=0)
if device:
self._callback(device)
@@ -530,7 +530,7 @@ class MonitorObserver(Thread):
return
try:
# emit a stop event to the thread
- os.write(self._stop_event_sink, b'\x01')
+ eintr_retry_call(os.write, self._stop_event_sink, b'\x01')
finally:
# close the out-of-thread side of the pipe
os.close(self._stop_event_sink)
diff -purN pyudev-0.16.1.orig/pyudev/_util.py pyudev-0.16.1/pyudev/_util.py
--- pyudev-0.16.1.orig/pyudev/_util.py 2015-06-12 09:36:21.428469657 -0400
+++ pyudev-0.16.1/pyudev/_util.py 2015-06-12 09:36:45.923457440 -0400
@@ -32,6 +32,7 @@ from __future__ import (print_function,
import os
import sys
import stat
+import errno
if sys.version_info[0] == 2:
@@ -141,3 +142,34 @@ def get_device_type(filename):
return 'block'
else:
raise ValueError('not a device file: {0!r}'.format(filename))
+
+
+def eintr_retry_call(func, *args, **kwargs):
+ """
+ Handle interruptions to an interruptible system call.
+
+ Run an interruptible system call in a loop and retry if it raises EINTR.
+ The signal calls that my raise EINTR prior to Python 3.5 are listed in
+ PEP 0475. Any calls to these functions must be wrapped in eintr_retry_call
+ in order to handle EINTR returns in older versions of Python.
+
+ This function is based on _eintr_retry_call in python's subprocess.py.
+ """
+
+ # select.error inherits from Exception instead of OSError in Python 2
+ import select
+
+ while True:
+ try:
+ return func(*args, **kwargs)
+ except (OSError, IOError, select.error) as e:
+ # If this is not an IOError or OSError, it's the old select.error
+ # type, which means that the errno is only accessible via subscript
+ if isinstance(e, (OSError, IOError)):
+ error_code = e.errno
+ else:
+ error_code = e[0]
+
+ if error_code == errno.EINTR:
+ continue
+ raise