| 1 | # If this is on, wait will exit
|
| 2 | #set -o errexit
|
| 3 |
|
| 4 | action() {
|
| 5 | echo "from signal"
|
| 6 | }
|
| 7 |
|
| 8 | # wait has an exit code according to the signal!
|
| 9 | trap 'action' USR1
|
| 10 | trap 'action' USR2
|
| 11 |
|
| 12 | echo "Run: kill -USR1 $$; date"
|
| 13 |
|
| 14 | # bash/zsh/mksh: wait is interrupted by USR1
|
| 15 | # dash: wait is NOT interrupted!
|
| 16 |
|
| 17 | async_test() {
|
| 18 | while true; do
|
| 19 | date
|
| 20 | sleep 5 &
|
| 21 | wait $!
|
| 22 | echo wait=$?
|
| 23 | done
|
| 24 | }
|
| 25 |
|
| 26 | async_test2() {
|
| 27 | echo 'with wait -n'
|
| 28 | while true; do
|
| 29 | date
|
| 30 | sleep 5 &
|
| 31 | wait -n
|
| 32 | echo wait=$?
|
| 33 | done
|
| 34 | }
|
| 35 |
|
| 36 | async_test3() {
|
| 37 | echo 'with wait'
|
| 38 | while true; do
|
| 39 | date
|
| 40 | sleep 5 &
|
| 41 | wait
|
| 42 | echo wait=$?
|
| 43 | done
|
| 44 | }
|
| 45 |
|
| 46 | # bash/dash/zsh/mksh: signal handler run after sleep
|
| 47 | sync_test() {
|
| 48 | while true; do
|
| 49 | date
|
| 50 | sleep 5
|
| 51 | echo 'next'
|
| 52 | done
|
| 53 | }
|
| 54 |
|
| 55 | "$@"
|