mirror of
git://git.sv.gnu.org/coreutils.git
synced 2026-04-20 18:56:39 +02:00
66 lines
2.2 KiB
Bash
Executable File
66 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
|
|
# Ensure that tail does not ignore data that is appended to a tailed-forever
|
|
# file between tail's initial read-to-EOF, and when the inotify watches
|
|
# are established in tail_forever_inotify. That data could be ignored
|
|
# indefinitely if no *other* data is appended, but it would be printed as
|
|
# soon as any additional appended data is detected.
|
|
|
|
# Copyright (C) 2009 Free Software Foundation, Inc.
|
|
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
if test "$VERBOSE" = yes; then
|
|
set -x
|
|
tail --version
|
|
fi
|
|
|
|
. $srcdir/test-lib.sh
|
|
|
|
|
|
touch file || framework_failure
|
|
touch tail.out || framework_failure
|
|
|
|
( timeout 10s gdb --version ) > gdb.out 2>&1
|
|
case $(cat gdb.out) in
|
|
*'GNU gdb'*) ;;
|
|
*) skip_test_ "can't run gdb";;
|
|
esac
|
|
|
|
# See if gdb works:
|
|
timeout 10s gdb -nx --batch-silent \
|
|
--eval-command='break tail_forever_inotify' \
|
|
--eval-command='run -f file' \
|
|
--eval-command='quit' \
|
|
tail < /dev/null > gdb.out 2>&1
|
|
|
|
test -s gdb.out && skip_test_ "can't set breakpoints in tail"
|
|
|
|
# Run "tail -f file", stopping to append a line just before
|
|
# inotify initialization, and then continue. Before the fix,
|
|
# that just-appended line would never be output.
|
|
timeout 10s gdb -nx --batch-silent \
|
|
--eval-command='break tail_forever_inotify' \
|
|
--eval-command='run -f file >> tail.out' \
|
|
--eval-command="shell echo never-seen-with-tail-7.5 >> file" \
|
|
--eval-command='continue' \
|
|
--eval-command='quit' \
|
|
tail < /dev/null &
|
|
pid=$!
|
|
|
|
tail --pid=$pid -f tail.out | (read; kill $pid)
|
|
|
|
test -s tail.out || fail=1
|
|
|
|
Exit $fail
|