File: process009.hs

package info (click to toggle)
ghc 9.0.2-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 177,780 kB
  • sloc: haskell: 494,441; ansic: 70,262; javascript: 9,423; sh: 8,537; python: 2,646; asm: 1,725; makefile: 1,333; xml: 196; cpp: 167; perl: 143; ruby: 84; lisp: 7
file content (18 lines) | stat: -rw-r--r-- 470 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
import Control.Monad
import System.Exit
import System.Process
import Data.Maybe

-- Test that we get the right exit code for processes that terminate
-- with a signal (#7229)

main = do
  (_,_,_,p) <- createProcess (shell "kill -HUP $$")
  waitForProcess p >>= print
  getProcessExitCode p >>= print

  (_,_,_,p) <- createProcess (shell "kill -HUP $$")
  forever $ do
    r <- getProcessExitCode p
    if (isJust r) then do print r; exitWith ExitSuccess else return ()