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janet/examples/sigaction.janet
Calvin Rose 21eab7e9cc Update sigaction to help address #1262.
Update example to have 4 cases - case 3 was previously broken but should
now work.
2023-08-23 09:16:59 -05:00

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###
### Usage: janet examples/sigaction.janet 1|2|3|4 &
###
### Then at shell: kill -s SIGTERM $!
###
(defn action
[]
(print "Handled SIGTERM!")
(flush)
(os/exit 1))
(defn main1
[]
(os/sigaction :term action true)
(forever))
(defn main2
[]
(os/sigaction :term action)
(forever))
(defn main3
[]
(os/sigaction :term action true)
(forever (ev/sleep math/inf)))
(defn main4
[]
(os/sigaction :term action)
(forever (ev/sleep math/inf)))
(defn main
[& args]
(def which (scan-number (get args 1 "1")))
(case which
1 (main1) # should work
2 (main2) # will not work
3 (main3) # should work
4 (main4) # should work
(error "bad main")))