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lockf() is available now on Android API level 24, but the F_LOCK macro is not defined #72948

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xdegaye mannequin opened this issue Nov 21, 2016 · 11 comments
Closed

lockf() is available now on Android API level 24, but the F_LOCK macro is not defined #72948

xdegaye mannequin opened this issue Nov 21, 2016 · 11 comments
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@xdegaye
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3.7 (EOL) end of life interpreter-core (Objects, Python, Grammar, and Parser dirs) type-bug An unexpected behavior, bug, or error

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@xdegaye
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xdegaye mannequin commented Nov 21, 2016

BPO 28762
Nosy @vstinner, @xdegaye, @yan12125
PRs
  • [Do Not Merge] Convert Misc/NEWS so that it is managed by towncrier #552
  • bpo-28762: Revert last commit (now using Android Unified Headers) #4488
    		•
    Files
  • test_posix_flock.patch
  • test_posix_lockf_2.patch
    		•

    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = 'https://github.com/xdegaye'
closed_at = <Date 2017-11-23.11:02:01.392>
created_at = <Date 2016-11-21.10:19:49.471>
labels = ['interpreter-core', 'type-bug', '3.7']
title = 'lockf() is available now on Android API level 24, but the F_LOCK macro is not defined'
updated_at = <Date 2017-11-23.11:02:01.391>
user = 'https://github.com/xdegaye'

    bugs.python.org fields:

    activity = <Date 2017-11-23.11:02:01.391>
actor = 'xdegaye'
assignee = 'xdegaye'
closed = True
closed_date = <Date 2017-11-23.11:02:01.392>
closer = 'xdegaye'
components = ['Interpreter Core']
creation = <Date 2016-11-21.10:19:49.471>
creator = 'xdegaye'
dependencies = []
files = ['45582', '45990']
hgrepos = []
issue_num = 28762
keywords = ['patch']
message_count = 11.0
messages = ['281344', '283752', '283758', '283759', '283767', '283781', '283785', '283788', '283823', '306634', '306801']
nosy_count = 4.0
nosy_names = ['vstinner', 'xdegaye', 'python-dev', 'yan12125']
pr_nums = ['552', '4488']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue28762'
versions = ['Python 3.6', 'Python 3.7']
    @xdegaye
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    xdegaye mannequin commented Nov 21, 2016

    The patch fixes the following error:

    ======================================================================
    ERROR: test_lockf (test.test_posix.PosixTester)
    ----------------------------------------------------------------------

    Traceback (most recent call last):
  File "/sdcard/org.bitbucket.pyona/lib/python3.7/test/test_posix.py", line 195, in test_lockf
    posix.lockf(fd, posix.F_LOCK, 4)
AttributeError: module 'posix' has no attribute 'F_LOCK'

    @xdegaye xdegaye mannequin added the 3.7 (EOL) end of life label Nov 21, 2016
    @xdegaye xdegaye mannequin self-assigned this Nov 21, 2016
    @xdegaye xdegaye mannequin added interpreter-core (Objects, Python, Grammar, and Parser dirs) type-bug An unexpected behavior, bug, or error labels Nov 21, 2016
    @yan12125
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    yan12125 mannequin commented Dec 21, 2016

    FYI: Since Android NDK r14 beta1, F_LOCK is defined in unified headers. [1] In $ANDROID_NDK/sysroot/usr/include/bits/lockf.h:

    #define F_ULOCK 0
#define F_LOCK 1
#define F_TLOCK 2
#define F_TEST 3

    [1] https://android.googlesource.com/platform/ndk.git/+/master/docs/UnifiedHeaders.md

    @vstinner
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    The patch fixes the following error:

    Do you mean that the patch adds posix.F_LOCK constant on Android?

    @xdegaye
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    xdegaye mannequin commented Dec 21, 2016

    No, the patch prevents posix.flock() to be defined on Android API 24 with android-ndk-r13. But I plan to change it so that the test is skipped when posix does not have the F_LOCK attribute as this problem is not worth a change in the build machinery. It makes even more sense now that android-ndk-r14 will be released with "Unified Headers". BTW thanks Chi Hsuan Yen for this important information.

    @vstinner
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    Oh ok, the issue is more subtle than what I understood.

    I reviewed test_posix_flock.patch and proposed some changes to the comment/doc.

    @xdegaye
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    xdegaye mannequin commented Dec 21, 2016

    Thanks for the review Victor.

    I have created bpo-29040: building Android with android-ndk-r14.

    @xdegaye
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    xdegaye mannequin commented Dec 21, 2016

    New patch.
    Please use autoreconf before running the patch (autoreconf instead of autoconf because the description of HAVE_LOCKF has been updated).

    @xdegaye xdegaye mannequin changed the title configure links with lockf and F_LOCK is not declared in Android API 24 lockf() is available now on Android API level 24, but the F_LOCK macro is not defined Dec 21, 2016
    @vstinner
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    The new patch now looks good to me.

    @python-dev
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    python-dev mannequin commented Dec 22, 2016

    New changeset 51b09b10d4f8 by Xavier de Gaye in branch '3.6':
    Issue bpo-28762: lockf() is available on Android API level 24, but the
    https://hg.python.org/cpython/rev/51b09b10d4f8

    New changeset 146157d91283 by Xavier de Gaye in branch 'default':
    Issue bpo-28762: Merge 3.6.
    https://hg.python.org/cpython/rev/146157d91283

    @xdegaye xdegaye mannequin closed this as completed Dec 22, 2016
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    xdegaye mannequin commented Nov 21, 2017

    This change is not needed anymore now that Unified Headers are supported by android-ndk-r14 (see bpo-29040)

    @xdegaye xdegaye mannequin reopened this Nov 21, 2017
    @xdegaye xdegaye mannequin added the invalid label Nov 21, 2017
    @xdegaye
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    xdegaye mannequin commented Nov 23, 2017

    New changeset 5ce1069 by xdegaye in branch 'master':
    bpo-28762: Revert last commit (now using Android Unified Headers) (GH-4488)
    5ce1069

    @xdegaye xdegaye mannequin closed this as completed Nov 23, 2017
    @xdegaye xdegaye mannequin removed the invalid label Nov 23, 2017
    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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