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f31ea18146
* tests/Makefile.am (TESTS): Add sort-merge-fdlimit. * tests/misc/sort-merge-fdlimit: New file. * doc/coreutils.texi (sort invocation): Document that we now silently lower nmerge if necessary. Patch by Paul Eggert, Nima Nikzad, Max Chang, Alexander Nguyen, Sahil Amoli, and Nick Graham.
55 lines
1.7 KiB
Bash
Executable File
55 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
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# Test whether sort avoids opening more file descriptors than it is
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# allowed when merging files.
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# Copyright (C) 2009 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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if test "$VERBOSE" = yes; then
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set -x
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sort --version
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fi
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. $srcdir/test-lib.sh
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require_ulimit_
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mkdir in err || framework_failure
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fail=0
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for i in `seq 17`; do
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echo $i >in/$i
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done
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# When these tests are run inside the automated testing framework, they
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# have one less available file descriptor than when run outside the
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# automated testing framework. If a test with a batch size of b fails
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# inside the ATF, then the same test with batch size b+1 may pass outside
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# the ATF but fail inside it.
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# The default batch size (nmerge) is 16.
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(ulimit -n 19 \
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&& sort -m --batch-size=16 in/* 2>err/merge-default-err \
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|| ! grep "open failed" err/merge-default-err) || fail=1
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# If sort opens a file (/dev/urandom) to sort by random hashes of keys,
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# it needs to consider this file against its limit on open file
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# descriptors.
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(ulimit -n 20 \
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&& sort -mR --batch-size=16 in/* 2>err/merge-random-err \
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|| ! grep "open failed" err/merge-random-err) || fail=1
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Exit $fail
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