| 1 | # fork and forkwait
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| 2 |
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| 3 | #### fork and forkwait usage errors
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| 4 | shopt --set oil:upgrade
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| 5 | shopt --unset errexit
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| 6 |
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| 7 | fork
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| 8 | echo status=$?
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| 9 |
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| 10 | fork extra
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| 11 | echo status=$?
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| 12 |
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| 13 | fork extra {
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| 14 | echo hi
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| 15 | }
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| 16 | echo status=$?
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| 17 |
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| 18 | #
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| 19 |
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| 20 | forkwait
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| 21 | echo status=$?
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| 22 |
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| 23 | forkwait extra
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| 24 | echo status=$?
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| 25 |
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| 26 | forkwait extra {
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| 27 | echo hi
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| 28 | }
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| 29 | echo status=$?
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| 30 |
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| 31 | ## STDOUT:
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| 32 | status=2
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| 33 | status=2
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| 34 | status=2
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| 35 | status=2
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| 36 | status=2
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| 37 | status=2
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| 38 | ## END
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| 39 |
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| 40 | #### forkwait
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| 41 | shopt --set oil:upgrade
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| 42 | shopt --unset errexit
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| 43 |
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| 44 | old=$PWD
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| 45 |
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| 46 | forkwait {
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| 47 | cd /
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| 48 | echo hi
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| 49 | exit 42
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| 50 | }
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| 51 | echo status=$?
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| 52 | if test "$old" = "$PWD"; then
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| 53 | echo ok
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| 54 | fi
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| 55 | ## STDOUT:
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| 56 | hi
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| 57 | status=42
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| 58 | ok
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| 59 | ## END
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| 60 |
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| 61 | #### fork
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| 62 | shopt --set oil:upgrade
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| 63 | shopt --unset errexit
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| 64 |
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| 65 | old=$PWD
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| 66 |
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| 67 | fork {
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| 68 | cd /
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| 69 | echo hi
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| 70 | sleep 0.01
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| 71 | exit 42
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| 72 | }
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| 73 | #echo status=$? race condition
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| 74 |
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| 75 | wait -n
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| 76 | echo status=$?
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| 77 |
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| 78 | if test "$old" = "$PWD"; then
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| 79 | echo ok
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| 80 | fi
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| 81 | ## STDOUT:
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| 82 | hi
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| 83 | status=42
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| 84 | ok
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| 85 | ## END
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