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|
#!./perl
BEGIN{
# Don't do anything if POSIX is missing, or sigaction missing.
use Config;
eval 'use POSIX';
if($@ || $^O eq 'MSWin32' || $^O eq 'NetWare' || $^O eq 'dos' ||
$^O eq 'MacOS' || ($^O eq 'VMS' && !$Config{'d_sigaction'})) {
print "1..0\n";
exit 0;
}
}
use Test::More tests => 33;
use strict;
use vars qw/$bad $bad7 $ok10 $bad18 $ok/;
$^W=1;
sub IGNORE {
++$bad7;
}
sub DEFAULT {
++$bad18;
}
sub foo {
++$ok;
}
my $newaction=POSIX::SigAction->new('::foo', new POSIX::SigSet(SIGUSR1), 0);
my $oldaction=POSIX::SigAction->new('::bar', new POSIX::SigSet(), 0);
{
my $bad;
local($SIG{__WARN__})=sub { $bad=1; };
sigaction(SIGHUP, $newaction, $oldaction);
is($bad, undef, "no warnings");
}
like($oldaction->{HANDLER}, qr/\A(?:DEFAULT|IGNORE)\z/, '$oldaction->{HANDLER}');
is($SIG{HUP}, '::foo');
sigaction(SIGHUP, $newaction, $oldaction);
is($oldaction->{HANDLER}, '::foo');
ok($oldaction->{MASK}->ismember(SIGUSR1), "SIGUSR1 ismember MASK");
SKIP: {
skip("sigaction() thinks different in $^O", 1)
if $^O eq 'linux' || $^O eq 'unicos';
is($oldaction->{FLAGS}, 0);
}
$newaction=POSIX::SigAction->new('IGNORE');
sigaction(SIGHUP, $newaction);
kill 'HUP', $$;
is($bad, undef, "SIGHUP ignored");
is($SIG{HUP}, 'IGNORE');
sigaction(SIGHUP, POSIX::SigAction->new('DEFAULT'));
is($SIG{HUP}, 'DEFAULT');
$newaction=POSIX::SigAction->new(sub { ++$ok10; });
sigaction(SIGHUP, $newaction);
{
local($^W)=0;
kill 'HUP', $$;
}
is($ok10, 1, "SIGHUP handler called");
is(ref($SIG{HUP}), 'CODE');
sigaction(SIGHUP, POSIX::SigAction->new('::foo'));
# Make sure the signal mask gets restored after sigaction croak()s.
eval {
my $act=POSIX::SigAction->new('::foo');
delete $act->{HANDLER};
sigaction(SIGINT, $act);
};
kill 'HUP', $$;
is($ok, 1, "signal mask gets restored after croak");
undef $ok;
# Make sure the signal mask gets restored after sigaction returns early.
my $x=defined sigaction(SIGKILL, $newaction, $oldaction);
kill 'HUP', $$;
is($x, '', "signal mask gets restored after early return");
is($ok, 1, "signal mask gets restored after early return");
$SIG{HUP}=sub {};
sigaction(SIGHUP, $newaction, $oldaction);
is(ref($oldaction->{HANDLER}), 'CODE');
eval {
sigaction(SIGHUP, undef, $oldaction);
};
is($@, '', "undef for new action");
eval {
sigaction(SIGHUP, 0, $oldaction);
};
is($@, '', "zero for new action");
eval {
sigaction(SIGHUP, bless({},'Class'), $oldaction);
};
like($@, qr/\Aaction is not of type POSIX::SigAction/,
'any object not good as new action');
SKIP: {
skip("SIGCONT not trappable in $^O", 1)
if ($^O eq 'VMS');
$newaction=POSIX::SigAction->new(sub { ++$ok10; });
if (eval { SIGCONT; 1 }) {
sigaction(SIGCONT, POSIX::SigAction->new('DEFAULT'));
{
local($^W)=0;
kill 'CONT', $$;
}
}
is($bad18, undef, "SIGCONT trappable");
}
{
local $SIG{__WARN__} = sub { }; # Just suffer silently.
my $hup20;
my $hup21;
sub hup20 { $hup20++ }
sub hup21 { $hup21++ }
sigaction("FOOBAR", $newaction);
pass("no coredump, still alive");
$newaction = POSIX::SigAction->new("hup20");
sigaction("SIGHUP", $newaction);
kill "HUP", $$;
is($hup20, 1);
$newaction = POSIX::SigAction->new("hup21");
sigaction("HUP", $newaction);
kill "HUP", $$;
is ($hup21, 1);
}
# "safe" attribute.
# for this one, use the accessor instead of the attribute
# standard signal handling via %SIG is safe
$SIG{HUP} = \&foo;
$oldaction = POSIX::SigAction->new;
sigaction(SIGHUP, undef, $oldaction);
ok($oldaction->safe, "SIGHUP is safe");
# SigAction handling is not safe ...
sigaction(SIGHUP, POSIX::SigAction->new(\&foo));
sigaction(SIGHUP, undef, $oldaction);
ok(!$oldaction->safe, "SigAction not safe by default");
# ... unless we say so!
$newaction = POSIX::SigAction->new(\&foo);
$newaction->safe(1);
sigaction(SIGHUP, $newaction);
sigaction(SIGHUP, undef, $oldaction);
ok($oldaction->safe, "SigAction can be safe");
# And safe signal delivery must work
$ok = 0;
kill 'HUP', $$;
is($ok, 1, "safe signal delivery must work");
SKIP: {
eval 'use POSIX qw(%SIGRT SIGRTMIN SIGRTMAX); scalar %SIGRT + SIGRTMIN() + SIGRTMAX()';
$@ # POSIX did not exort
|| SIGRTMIN() < 0 || SIGRTMAX() < 0 # HP-UX 10.20 exports both as -1
|| SIGRTMIN() > $Config{sig_count} # AIX 4.3.3 exports bogus 888 and 999
and skip("no SIGRT signals", 4);
cmp_ok(SIGRTMAX(), '>', SIGRTMIN(), "SIGRTMAX > SIGRTMIN");
is(scalar %SIGRT, SIGRTMAX() - SIGRTMIN() + 1, "scalar SIGRT");
my $sigrtmin;
my $h = sub { $sigrtmin = 1 };
$SIGRT{SIGRTMIN} = $h;
is($SIGRT{SIGRTMIN}, $h, "handler set & get");
kill 'SIGRTMIN', $$;
is($sigrtmin, 1, "SIGRTMIN handler works");
}
SKIP: {
eval 'use POSIX qw(SA_SIGINFO); SA_SIGINFO';
skip("no SA_SIGINFO", 1) if $@;
skip("SA_SIGINFO is broken on AIX 4.2", 1) if ($^O.$Config{osvers}) =~ m/^aix4\.2/;
sub hiphup {
is($_[1]->{signo}, SIGHUP, "SA_SIGINFO got right signal");
}
my $act = POSIX::SigAction->new('hiphup', 0, SA_SIGINFO);
sigaction(SIGHUP, $act);
kill 'HUP', $$;
}
eval { sigaction(-999, "foo"); };
like($@, qr/Negative signals/,
"Prevent negative signals instead of core dumping");
# RT 77432 - assertion failure with POSIX::SigAction
{
local *SIG = {};
ok(sigaction(SIGHUP, POSIX::SigAction->new),
"sigaction would crash/assert with a replaced %SIG");
}
|
