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0458701041
* tests/tail-2/follow-stdin.sh: Use the standard tail testing framework to avoid the race seen under very high load, and also test the non inotify case. Reported by Jim Meyering
53 lines
1.5 KiB
Bash
Executable File
53 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
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# tail -f - would fail with the initial inotify implementation
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# Copyright (C) 2009-2015 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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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ tail
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check_tail_output()
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{
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local delay="$1"
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grep "$tail_re" out ||
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{ sleep $delay; return 1; }
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}
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# Terminate any background tail process
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cleanup_() { kill $pid 2>/dev/null && wait $pid; }
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# Speedup the non inotify case
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fastpoll='-s.1 --max-unchanged-stats=1'
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echo line > in || framework_failure_
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for mode in '' '---disable-inotify'; do
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echo line > exp || framework_failure_
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tail $mode -f $fastpoll < in > out 2> err & pid=$!
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# Wait up to 12.7s for output to appear:
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tail_re='line' retry_delay_ check_tail_output .1 7 ||
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{ echo "$0: a: unexpected delay?"; cat out; fail=1; }
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# Ensure there was no error output.
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compare /dev/null err || fail=1
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cleanup_
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done
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Exit $fail
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