190_alarm.t revision 7c478bd95313f5f23a4c958a745db2134aa03244
# Test to make sure alarm / SIGALM does not interfere
# with Net::Ping. (This test was derived to ensure
# compatibility with the "spamassassin" utility.)
# Based on code written by radu@netsoft.ro (Radu Greab).
BEGIN {
unless (eval "require Socket") {
print "1..0 \# Skip: no Socket\n";
exit;
}
unless (eval {alarm 0; 1;}) {
print "1..0 \# Skip: alarm borks on $^O $^X $] ?\n";
exit;
}
unless (getservbyname('echo', 'tcp')) {
print "1..0 \# Skip: no echo port\n";
exit;
}
}
use strict;
use Test;
use Net::Ping;
plan tests => 6;
# Everything compiled
ok 1;
eval {
my $timeout = 11;
ok 1; # In eval
local $SIG{ALRM} = sub { die "alarm works" };
ok 1; # SIGALRM can be set on this platform
alarm $timeout;
ok 1; # alarm() can be set on this platform
my $start = time;
while (1) {
my $ping = Net::Ping->new("tcp", 2);
# It does not matter if alive or not
$ping->ping("127.0.0.1");
$ping->ping("172.29.249.249");
die "alarm failed" if time > $start + $timeout + 1;
}
};
# Got out of "infinite loop" okay
ok 1;
# Make sure it died for a good excuse
ok $@ =~ /alarm works/ or die $@;
alarm 0; # Reset alarm