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2c20fd053b
* tests/tail-2/tail-n0f: Read the process status using the test-lib.sh require_proc_pid_status_ function.
53 lines
1.4 KiB
Bash
Executable File
53 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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# Make sure that `tail -n0 -f' and `tail -c0 -f' sleep
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# rather than doing what amounted to a busy-wait.
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# Copyright (C) 2003, 2006-2009 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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# This bug was fixed for 5.0.91
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# It skips the test if your system lacks a /proc/$pid/status
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# file, or if its contents don't look right.
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if test "$VERBOSE" = yes; then
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set -x
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tail --version
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fi
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. $srcdir/test-lib.sh
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require_proc_pid_status_
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touch empty || framework_failure
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echo anything > nonempty || framework_failure
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fail=0
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for file in empty nonempty; do
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for c_or_n in c n; do
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tail --sleep=4 -${c_or_n} 0 -f $file &
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pid=$!
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sleep .5
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state=$(get_process_status_ $pid)
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case $state in
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S*) ;;
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*) echo $0: process in unexpected state: $state 1>&2; fail=1 ;;
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esac
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kill $pid
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done
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done
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Exit $fail
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