diff options
Diffstat (limited to 'test/fork2.awk')
-rw-r--r-- | test/fork2.awk | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test/fork2.awk b/test/fork2.awk new file mode 100644 index 00000000..bd364286 --- /dev/null +++ b/test/fork2.awk @@ -0,0 +1,35 @@ +@load "fork" + +BEGIN { + # avoid instantiating PROCINFO prior to the fork + switch (pid = fork()) { + case -1: + printf "Error: fork failed with ERRNO %s\n", ERRNO + exit 1 + case 0: + # child + fn = ("fork.tmp." PROCINFO["pid"]) + printf "pid %s ppid %s\n", PROCINFO["pid"], PROCINFO["ppid"] > fn + exit 0 + default: + # parent + erc = 1 + fn = ("fork.tmp." pid) + if ((rc = wait()) < 0) + printf "Error: wait failed with ERRNO %s\n", ERRNO + else if (rc != pid) + printf "Error: wait returned %s instead of child pid %s\n", rc, pid + else if ((getline x < fn) != 1) + printf "Error: getline failed on temp file %s\n", fn + else { + expected = ("pid " pid " ppid " PROCINFO["pid"]) + if (x != expected) + printf "Error: child data (%s) != expected (%s)\n", x, expected + else if ((rc = system("rm " fn)) != 0) + printf "Error removing temp file %s with ERRNO %s\n", fn, ERRNO + else + erc = 0 + } + exit erc + } +} |