| # Ensure that cat outputs processed data immediately. | |
| # Copyright (C) 2009-2025 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 <https://www.gnu.org/licenses/>. | |
| . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src | |
| print_ver_ cat | |
| # Use a fifo rather than a pipe in the tests below | |
| # so that the producer (cat) will wait until the | |
| # consumer (dd) opens the fifo therefore increasing | |
| # the chance that dd will read the data from each | |
| # write separately. | |
| mkfifo_or_skip_ fifo | |
| # Terminate any background cp process | |
| cleanup_() { kill $pid 2>/dev/null && wait $pid; } | |
| echo 1 > exp | |
| cat_buf_1() | |
| { | |
| local delay="$1" | |
| > out || framework_failure_ | |
| dd count=1 if=fifo > out & pid=$! | |
| (echo 1; sleep $delay; echo 2) | cat -v > fifo | |
| wait $pid | |
| compare exp out | |
| } | |
| retry_delay_ cat_buf_1 .1 6 || fail=1 | |
| Exit $fail | |