#!./perl

BEGIN {
    chdir 't' if -d 't';
    @INC = '../lib';
    require Config; import Config;
    if ($^O ne 'VMS' and $Config{'extensions'} !~ /\bPOSIX\b/) {
	print "1..0\n";
	exit 0;
    }
}

require "./test.pl";
plan(tests => 39);


use POSIX qw(fcntl_h signal_h limits_h _exit getcwd open read strftime write
	     errno);
use strict 'subs';

$| = 1;

$Is_W32     = $^O eq 'MSWin32';
$Is_Dos     = $^O eq 'dos';
$Is_MPE     = $^O eq 'mpeix';
$Is_MacOS   = $^O eq 'MacOS';
$Is_VMS     = $^O eq 'VMS';
$Is_OS2     = $^O eq 'os2';
$Is_UWin    = $^O eq 'uwin';
$Is_OS390   = $^O eq 'os390';

ok( $testfd = open("TEST", O_RDONLY, 0),        'O_RDONLY with open' );
read($testfd, $buffer, 4) if $testfd > 2;
is( $buffer, "#!./",                      '    with read' );

TODO:
{
    local $TODO = "read to array element not working";

    read($testfd, $buffer[1], 5) if $testfd > 2;
    is( $buffer[1], "perl\n",	               '    read to array element' );
}

write(1,"ok 4\nnot ok 4\n", 5);
next_test();

SKIP: {
    skip("no pipe() support on DOS", 2) if $Is_Dos;

    @fds = POSIX::pipe();
    ok( $fds[0] > $testfd,      'POSIX::pipe' );

    CORE::open($reader = \*READER, "<&=".$fds[0]);
    CORE::open($writer = \*WRITER, ">&=".$fds[1]);
    print $writer "ok 6\n";
    close $writer;
    print <$reader>;
    close $reader;
    next_test();
}

SKIP: {
    skip("no sigaction support on win32/dos", 6) if $Is_W32 || $Is_Dos;

    my $sigset = new POSIX::SigSet 1, 3;
    $sigset->delset(1);
    ok(! $sigset->ismember(1),  'POSIX::SigSet->delset' );
    ok(  $sigset->ismember(3),  'POSIX::SigSet->ismember' );

    SKIP: {
        skip("no kill() support on Mac OS", 4) if $Is_MacOS;

        my $sigint_called = 0;

	my $mask   = new POSIX::SigSet &SIGINT;
	my $action = new POSIX::SigAction 'main::SigHUP', $mask, 0;
	sigaction(&SIGHUP, $action);
	$SIG{'INT'} = 'SigINT';
	kill 'HUP', $$;
	sleep 1;

        printf "%s 11 -   masked SIGINT received %s\n",
          $sigint_called ? "ok" : "not ok",
          $^O eq 'darwin' ? "# TODO Darwin seems to loose blocked signals" 
                          : '';

	print "ok 12 - signal masks successful\n";
	
	sub SigHUP {
	    print "ok 9 - sigaction SIGHUP\n";
	    kill 'INT', $$;
	    sleep 2;
	    print "ok 10 - sig mask delayed SIGINT\n";
	}

        sub SigINT {
            $sigint_called++;
	}

        # The order of the above tests is very important, so
        # we use literal prints and hard coded numbers.
        next_test() for 1..4;
    }
}

SKIP: {
    skip("_POSIX_OPEN_MAX is inaccurate on MPE", 1) if $Is_MPE;
    skip("_POSIX_OPEN_MAX undefined ($fds[1])",  1) unless &_POSIX_OPEN_MAX;

    ok( &_POSIX_OPEN_MAX >= 16, "The minimum allowed values according to susv2" );

}

my $pat;
if ($Is_MacOS) {
    $pat = qr/:t:$/;
} 
elsif ( $Is_VMS ) {
    $pat = qr/\.T]/i;
}
else {
    $pat = qr#[\\/]t$#i;
}
like( getcwd(), qr/$pat/, 'getcwd' );

# Check string conversion functions.

SKIP: { 
    skip("strtod() not present", 1) unless $Config{d_strtod};

    $lc = &POSIX::setlocale(&POSIX::LC_NUMERIC, 'C') if $Config{d_setlocale};

    # we're just checking that strtod works, not how accurate it is
    ($n, $x) = &POSIX::strtod('3.14159_OR_SO');
    ok((abs("3.14159" - $n) < 1e-6) && ($x == 6), 'strtod works');

    &POSIX::setlocale(&POSIX::LC_NUMERIC, $lc) if $Config{d_setlocale};
}

SKIP: {
    skip("strtol() not present", 2) unless $Config{d_strtol};

    ($n, $x) = &POSIX::strtol('21_PENGUINS');
    is($n, 21, 'strtol() number');
    is($x, 9,  '         unparsed chars');
}

SKIP: {
    skip("strtoul() not present", 2) unless $Config{d_strtoul};

    ($n, $x) = &POSIX::strtoul('88_TEARS');
    is($n, 88, 'strtoul() number');
    is($x, 6,  '          unparsed chars');
}

# Pick up whether we're really able to dynamically load everything.
ok( &POSIX::acos(1.0) == 0.0,   'dynamic loading' );

# This can coredump if struct tm has a timezone field and we
# didn't detect it.  If this fails, try adding
# -DSTRUCT_TM_HASZONE to your cflags when compiling ext/POSIX/POSIX.c.
# See ext/POSIX/hints/sunos_4.pl and ext/POSIX/hints/linux.pl 
print POSIX::strftime("ok 21 # %H:%M, on %D\n", localtime());
next_test();

# If that worked, validate the mini_mktime() routine's normalisation of
# input fields to strftime().
sub try_strftime {
    my $expect = shift;
    my $got = POSIX::strftime("%a %b %d %H:%M:%S %Y %j", @_);
    is($got, $expect, "validating mini_mktime() and strftime(): $expect");
}

$lc = &POSIX::setlocale(&POSIX::LC_TIME, 'C') if $Config{d_setlocale};
try_strftime("Wed Feb 28 00:00:00 1996 059", 0,0,0, 28,1,96);
try_strftime("Thu Feb 29 00:00:60 1996 060", 60,0,-24, 30,1,96);
try_strftime("Fri Mar 01 00:00:00 1996 061", 0,0,-24, 31,1,96);
try_strftime("Sun Feb 28 00:00:00 1999 059", 0,0,0, 28,1,99);
try_strftime("Mon Mar 01 00:00:00 1999 060", 0,0,24, 28,1,99);
try_strftime("Mon Feb 28 00:00:00 2000 059", 0,0,0, 28,1,100);
try_strftime("Tue Feb 29 00:00:00 2000 060", 0,0,0, 0,2,100);
try_strftime("Wed Mar 01 00:00:00 2000 061", 0,0,0, 1,2,100);
try_strftime("Fri Mar 31 00:00:00 2000 091", 0,0,0, 31,2,100);
&POSIX::setlocale(&POSIX::LC_TIME, $lc) if $Config{d_setlocale};

{
    for my $test (0, 1) {
	$! = 0;
	# POSIX::errno is autoloaded. 
	# Autoloading requires many system calls.
	# errno() looks at $! to generate its result.
	# Autoloading should not munge the value.
	my $foo  = $!;
	my $errno = POSIX::errno();

        # Force numeric context.
	is( $errno + 0, $foo + 0,     'autoloading and errno() mix' );
    }
}

SKIP: {
  skip("no kill() support on Mac OS", 1) if $Is_MacOS;
  is (eval "kill 0", 0, "check we have CORE::kill")
    or print "\$\@ is " . _qq($@) . "\n";
}

# Check that we can import the POSIX kill routine
POSIX->import ('kill');
my $result = eval "kill 0";
is ($result, undef, "we should now have POSIX::kill");
# Check usage.
like ($@, qr/^Usage: POSIX::kill\(pid, sig\)/, "check its usage message");

# Check unimplemented.
$result = eval {POSIX::offsetof};
is ($result, undef, "offsetof should fail");
like ($@, qr/^Unimplemented: POSIX::offsetof\(\) is C-specific/,
      "check its unimplemented message");

# Check reimplemented.
$result = eval {POSIX::fgets};
is ($result, undef, "fgets should fail");
like ($@, qr/^Use method IO::Handle::gets\(\) instead/,
      "check its redef message");

# Check that output is not flushed by _exit. This test should be last
# in the file, and is not counted in the total number of tests.
if ($^O eq 'vos') {
 print "# TODO - hit VOS bug posix-885 - _exit flushes output buffers.\n";
} else {
 $| = 0;
 # The following line assumes buffered output, which may be not true:
 print '@#!*$@(!@#$' unless ($Is_MacOS || $Is_OS2 || $Is_UWin || $Is_OS390 ||
                            $Is_VMS ||
			    (defined $ENV{PERLIO} &&
			     $ENV{PERLIO} eq 'unix' &&
			     $Config::Config{useperlio}));
 _exit(0);
}