Issue1576
Created on 2010-03-19.12:41:03 by crankycoder, last changed 2010-03-21.21:48:33 by pjenvey.
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Description |
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test_io.py
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crankycoder,
2010-03-19.12:41:02
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| msg5577 (view) |
Author: Victor Ng (crankycoder) |
Date: 2010-03-19.12:41:02 |
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Jython's append + read operation crashes when trying to read data.
java.nio.channels.NonReadableChannelException is raised in the attached test case.
The sample script works fine under CPython 2.5.2
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| msg5578 (view) |
Author: Philip Jenvey (pjenvey) |
Date: 2010-03-19.16:17:48 |
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Guessing this is a regression from 2.5, due to the fix for a better plain append mode
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| msg5580 (view) |
Author: Philip Jenvey (pjenvey) |
Date: 2010-03-21.17:31:24 |
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Yes, this is indeed a regression from the O_APPEND fix in r6796 (#1466). We're now using an underlying FileOutputStream for append mode so we can force a real underlying O_APPEND mode on the file. But of course this FileOuputSTream is opened in write only mode. So in the meantime we're just going to have disable this behavior in a+ mode.
In the future we should take advantage of our jnr-posix library to open native files in whatever mode we need. Though we'd need to somehow translate that underlying file handle to a java FileDescriptor or FileChannel
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| msg5583 (view) |
Author: Philip Jenvey (pjenvey) |
Date: 2010-03-21.21:48:33 |
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fixed in r6988
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| Date |
User |
Action |
Args |
| 2010-03-21 21:48:33 | pjenvey | set | status: open -> closed
resolution: fixed
messages:
+ msg5583
title: append + read file i/o is not consistent with cpython -> files opened in 'a+' mode not readable |
| 2010-03-21 17:31:26 | pjenvey | set | messages:
+ msg5580 |
| 2010-03-19 16:17:49 | pjenvey | set | assignee: pjenvey
messages:
+ msg5578
nosy:
+ pjenvey |
| 2010-03-19 12:41:03 | crankycoder | create | |
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