#
# t/test.pl - most of Test::More functionality without the fuss
+
+
+# NOTE:
+#
+# Increment ($x++) has a certain amount of cleverness for things like
+#
+# $x = 'zz';
+# $x++; # $x eq 'aaa';
+#
+# stands more chance of breaking than just a simple
#
+# $x = $x + 1
+#
+# In this file, we use the latter "Baby Perl" approach, and increment
+# will be worked over by t/op/inc.t
+$Level = 1;
my $test = 1;
my $planned;
+my $noplan;
+my $Perl; # Safer version of $^X set by which_perl()
$TODO = 0;
$NO_ENDING = 0;
+# Use this instead of print to avoid interference while testing globals.
+sub _print {
+ local($\, $", $,) = (undef, ' ', '');
+ print STDOUT @_;
+}
+
+sub _print_stderr {
+ local($\, $", $,) = (undef, ' ', '');
+ print STDERR @_;
+}
+
sub plan {
my $n;
if (@_ == 1) {
$n = shift;
+ if ($n eq 'no_plan') {
+ undef $n;
+ $noplan = 1;
+ }
} else {
my %plan = @_;
- $n = $plan{tests};
+ $n = $plan{tests};
}
- print STDOUT "1..$n\n";
+ _print "1..$n\n" unless $noplan;
$planned = $n;
}
END {
my $ran = $test - 1;
- if (!$NO_ENDING && defined $planned && $planned != $ran) {
- print STDERR "# Looks like you planned $planned tests but ran $ran.\n";
+ if (!$NO_ENDING) {
+ if (defined $planned && $planned != $ran) {
+ _print_stderr
+ "# Looks like you planned $planned tests but ran $ran.\n";
+ } elsif ($noplan) {
+ _print "1..$ran\n";
+ }
}
}
-# Use this instead of "print STDERR" when outputing failure diagnostic
+# Use this instead of "print STDERR" when outputing failure diagnostic
# messages
sub _diag {
- my $fh = $TODO ? *STDOUT : *STDERR;
- print $fh @_;
+ return unless @_;
+ my @mess = map { /^#/ ? "$_\n" : "# $_\n" }
+ map { split /\n/ } @_;
+ $TODO ? _print(@mess) : _print_stderr(@mess);
+}
+
+sub diag {
+ _diag(@_);
}
sub skip_all {
if (@_) {
- print STDOUT "1..0 - @_\n";
+ _print "1..0 # Skip @_\n";
} else {
- print STDOUT "1..0\n";
+ _print "1..0\n";
}
exit(0);
}
}
$out .= " # TODO $TODO" if $TODO;
- print STDOUT "$out\n";
+ _print "$out\n";
unless ($pass) {
_diag "# Failed $where\n";
}
# Ensure that the message is properly escaped.
- _diag map { /^#/ ? "$_\n" : "# $_\n" }
- map { split /\n/ } @mess if @mess;
+ _diag @mess;
- $test++;
+ $test = $test + 1; # don't use ++
return $pass;
}
sub _where {
- my @caller = caller(1);
+ my @caller = caller($Level);
return "at $caller[1] line $caller[2]";
}
-sub ok {
+# DON'T use this for matches. Use like() instead.
+sub ok ($@) {
my ($pass, $name, @mess) = @_;
_ok($pass, _where(), $name, @mess);
}
my $x = shift;
return 'undef' unless defined $x;
my $q = $x;
- $q =~ s/\\/\\\\/;
- $q =~ s/'/\\'/;
+ $q =~ s/\\/\\\\/g;
+ $q =~ s/'/\\'/g;
return "'$q'";
}
return @result;
}
-sub is {
+sub is ($$@) {
my ($got, $expected, $name, @mess) = @_;
- my $pass = $got eq $expected;
+
+ my $pass;
+ if( !defined $got || !defined $expected ) {
+ # undef only matches undef
+ $pass = !defined $got && !defined $expected;
+ }
+ else {
+ $pass = $got eq $expected;
+ }
+
unless ($pass) {
unshift(@mess, "# got "._q($got)."\n",
"# expected "._q($expected)."\n");
_ok($pass, _where(), $name, @mess);
}
-sub isnt {
+sub isnt ($$@) {
my ($got, $isnt, $name, @mess) = @_;
- my $pass = $got ne $isnt;
+
+ my $pass;
+ if( !defined $got || !defined $isnt ) {
+ # undef only matches undef
+ $pass = defined $got || defined $isnt;
+ }
+ else {
+ $pass = $got ne $isnt;
+ }
+
unless( $pass ) {
unshift(@mess, "# it should not be "._q($got)."\n",
"# but it is.\n");
_ok($pass, _where(), $name, @mess);
}
-# Note: this isn't quite as fancy as Test::More::like().
-sub like {
- my ($got, $expected, $name, @mess) = @_;
+sub cmp_ok ($$$@) {
+ my($got, $type, $expected, $name, @mess) = @_;
+
my $pass;
- if (ref $expected eq 'Regexp') {
- $pass = $got =~ $expected;
- unless ($pass) {
- unshift(@mess, "# got '$got'\n",
- "# expected /$expected/\n");
- }
+ {
+ local $^W = 0;
+ local($@,$!); # don't interfere with $@
+ # eval() sometimes resets $!
+ $pass = eval "\$got $type \$expected";
+ }
+ unless ($pass) {
+ # It seems Irix long doubles can have 2147483648 and 2147483648
+ # that stringify to the same thing but are acutally numerically
+ # different. Display the numbers if $type isn't a string operator,
+ # and the numbers are stringwise the same.
+ # (all string operators have alphabetic names, so tr/a-z// is true)
+ # This will also show numbers for some uneeded cases, but will
+ # definately be helpful for things such as == and <= that fail
+ if ($got eq $expected and $type !~ tr/a-z//) {
+ unshift @mess, "# $got - $expected = " . ($got - $expected) . "\n";
+ }
+ unshift(@mess, "# got "._q($got)."\n",
+ "# expected $type "._q($expected)."\n");
+ }
+ _ok($pass, _where(), $name, @mess);
+}
+
+# Check that $got is within $range of $expected
+# if $range is 0, then check it's exact
+# else if $expected is 0, then $range is an absolute value
+# otherwise $range is a fractional error.
+# Here $range must be numeric, >= 0
+# Non numeric ranges might be a useful future extension. (eg %)
+sub within ($$$@) {
+ my ($got, $expected, $range, $name, @mess) = @_;
+ my $pass;
+ if (!defined $got or !defined $expected or !defined $range) {
+ # This is a fail, but doesn't need extra diagnostics
+ } elsif ($got !~ tr/0-9// or $expected !~ tr/0-9// or $range !~ tr/0-9//) {
+ # This is a fail
+ unshift @mess, "# got, expected and range must be numeric\n";
+ } elsif ($range < 0) {
+ # This is also a fail
+ unshift @mess, "# range must not be negative\n";
+ } elsif ($range == 0) {
+ # Within 0 is ==
+ $pass = $got == $expected;
+ } elsif ($expected == 0) {
+ # If expected is 0, treat range as absolute
+ $pass = ($got <= $range) && ($got >= - $range);
} else {
- $pass = $got =~ /$expected/;
- unless ($pass) {
- unshift(@mess, "# got '$got'\n",
- "# expected /$expected/\n");
- }
+ my $diff = $got - $expected;
+ $pass = abs ($diff / $expected) < $range;
+ }
+ unless ($pass) {
+ if ($got eq $expected) {
+ unshift @mess, "# $got - $expected = " . ($got - $expected) . "\n";
+ }
+ unshift@mess, "# got "._q($got)."\n",
+ "# expected "._q($expected)." (within "._q($range).")\n";
+ }
+ _ok($pass, _where(), $name, @mess);
+}
+
+# Note: this isn't quite as fancy as Test::More::like().
+
+sub like ($$@) { like_yn (0,@_) }; # 0 for -
+sub unlike ($$@) { like_yn (1,@_) }; # 1 for un-
+
+sub like_yn ($$$@) {
+ my ($flip, $got, $expected, $name, @mess) = @_;
+ my $pass;
+ $pass = $got =~ /$expected/ if !$flip;
+ $pass = $got !~ /$expected/ if $flip;
+ unless ($pass) {
+ unshift(@mess, "# got '$got'\n",
+ $flip
+ ? "# expected !~ /$expected/\n" : "# expected /$expected/\n");
}
+ local $Level = $Level + 1;
_ok($pass, _where(), $name, @mess);
}
}
sub curr_test {
+ $test = shift if @_;
return $test;
}
sub next_test {
- $test++
+ my $retval = $test;
+ $test = $test + 1; # don't use ++
+ $retval;
}
# Note: can't pass multipart messages since we try to
my $why = shift;
my $n = @_ ? shift : 1;
for (1..$n) {
- print STDOUT "ok $test # skip: $why\n";
- $test++;
+ _print "ok $test # skip $why\n";
+ $test = $test + 1;
}
local $^W = 0;
last SKIP;
}
+sub todo_skip {
+ my $why = shift;
+ my $n = @_ ? shift : 1;
+
+ for (1..$n) {
+ _print "not ok $test # TODO & SKIP $why\n";
+ $test = $test + 1;
+ }
+ local $^W = 0;
+ last TODO;
+}
+
sub eq_array {
my ($ra, $rb) = @_;
return 0 unless $#$ra == $#$rb;
for my $i (0..$#$ra) {
+ next if !defined $ra->[$i] && !defined $rb->[$i];
+ return 0 if !defined $ra->[$i];
+ return 0 if !defined $rb->[$i];
return 0 unless $ra->[$i] eq $rb->[$i];
}
return 1;
$key = "" . $key;
if (exists $orig->{$key}) {
if ($orig->{$key} ne $value) {
- print STDOUT "# key ", _qq($key), " was ", _qq($orig->{$key}),
+ _print "# key ", _qq($key), " was ", _qq($orig->{$key}),
" now ", _qq($value), "\n";
$fail = 1;
}
} else {
- print STDOUT "# key ", _qq($key), " is ", _qq($value),
+ _print "# key ", _qq($key), " is ", _qq($value),
", not in original.\n";
$fail = 1;
}
# Force a hash recompute if this perl's internals can cache the hash key.
$_ = "" . $_;
next if (exists $suspect->{$_});
- print STDOUT "# key ", _qq($_), " was ", _qq($orig->{$_}), " now missing.\n";
+ _print "# key ", _qq($_), " was ", _qq($orig->{$_}), " now missing.\n";
$fail = 1;
}
!$fail;
}
-sub require_ok {
+sub require_ok ($) {
my ($require) = @_;
eval <<REQUIRE_OK;
require $require;
_ok(!$@, _where(), "require $require");
}
-sub use_ok {
+sub use_ok ($) {
my ($use) = @_;
eval <<USE_OK;
use $use;
# switches => [ command-line switches ]
# nolib => 1 # don't use -I../lib (included by default)
# prog => one-liner (avoid quotes)
+# progs => [ multi-liner (avoid quotes) ]
# progfile => perl script
# stdin => string to feed the stdin
# stderr => redirect stderr to stdout
my $is_netware = $^O eq 'NetWare';
my $is_macos = $^O eq 'MacOS';
my $is_vms = $^O eq 'VMS';
+my $is_cygwin = $^O eq 'cygwin';
sub _quote_args {
my ($runperl, $args) = @_;
foreach (@$args) {
# In VMS protect with doublequotes because otherwise
# DCL will lowercase -- unless already doublequoted.
- $_ = q(").$_.q(") if $is_vms && !/^\"/;
+ $_ = q(").$_.q(") if $is_vms && !/^\"/ && length($_) > 0;
$$runperl .= ' ' . $_;
}
}
-sub runperl {
+sub _create_runperl { # Create the string to qx in runperl().
my %args = @_;
- my $runperl = $^X;
- if ($args{switches}) {
- _quote_args(\$runperl, $args{switches});
+ my $runperl = which_perl();
+ if ($runperl =~ m/\s/) {
+ $runperl = qq{"$runperl"};
+ }
+ #- this allows, for example, to set PERL_RUNPERL_DEBUG=/usr/bin/valgrind
+ if ($ENV{PERL_RUNPERL_DEBUG}) {
+ $runperl = "$ENV{PERL_RUNPERL_DEBUG} $runperl";
}
unless ($args{nolib}) {
if ($is_macos) {
$runperl .= ' "-I../lib"'; # doublequotes because of VMS
}
}
+ if ($args{switches}) {
+ local $Level = 2;
+ die "test.pl:runperl(): 'switches' must be an ARRAYREF " . _where()
+ unless ref $args{switches} eq "ARRAY";
+ _quote_args(\$runperl, $args{switches});
+ }
if (defined $args{prog}) {
- if ($is_mswin || $is_netware || $is_vms) {
- $runperl .= qq( -e ") . $args{prog} . qq(");
- }
- else {
- $runperl .= qq( -e ') . $args{prog} . qq(');
- }
+ die "test.pl:runperl(): both 'prog' and 'progs' cannot be used " . _where()
+ if defined $args{progs};
+ $args{progs} = [$args{prog}]
+ }
+ if (defined $args{progs}) {
+ die "test.pl:runperl(): 'progs' must be an ARRAYREF " . _where()
+ unless ref $args{progs} eq "ARRAY";
+ foreach my $prog (@{$args{progs}}) {
+ if ($is_mswin || $is_netware || $is_vms) {
+ $runperl .= qq ( -e "$prog" );
+ }
+ else {
+ $runperl .= qq ( -e '$prog' );
+ }
+ }
} elsif (defined $args{progfile}) {
$runperl .= qq( "$args{progfile}");
+ } else {
+ # You probaby didn't want to be sucking in from the upstream stdin
+ die "test.pl:runperl(): none of prog, progs, progfile, args, "
+ . " switches or stdin specified"
+ unless defined $args{args} or defined $args{switches}
+ or defined $args{stdin};
}
if (defined $args{stdin}) {
- # so we don't try to put literal newlines and crs onto the
- # command line.
- $args{stdin} =~ s/\n/\\n/g;
- $args{stdin} =~ s/\r/\\r/g;
+ # so we don't try to put literal newlines and crs onto the
+ # command line.
+ $args{stdin} =~ s/\n/\\n/g;
+ $args{stdin} =~ s/\r/\\r/g;
if ($is_mswin || $is_netware || $is_vms) {
- $runperl = qq{$^X -e "print qq(} .
+ $runperl = qq{$Perl -e "print qq(} .
$args{stdin} . q{)" | } . $runperl;
}
+ elsif ($is_macos) {
+ # MacOS can only do two processes under MPW at once;
+ # the test itself is one; we can't do two more, so
+ # write to temp file
+ my $stdin = qq{$Perl -e 'print qq(} . $args{stdin} . qq{)' > teststdin; };
+ if ($args{verbose}) {
+ my $stdindisplay = $stdin;
+ $stdindisplay =~ s/\n/\n\#/g;
+ _print_stderr "# $stdindisplay\n";
+ }
+ `$stdin`;
+ $runperl .= q{ < teststdin };
+ }
else {
- $runperl = qq{$^X -e 'print qq(} .
+ $runperl = qq{$Perl -e 'print qq(} .
$args{stdin} . q{)' | } . $runperl;
}
}
if ($args{verbose}) {
my $runperldisplay = $runperl;
$runperldisplay =~ s/\n/\n\#/g;
- print STDERR "# $runperldisplay\n";
+ _print_stderr "# $runperldisplay\n";
+ }
+ return $runperl;
+}
+
+sub runperl {
+ die "test.pl:runperl() does not take a hashref"
+ if ref $_[0] and ref $_[0] eq 'HASH';
+ my $runperl = &_create_runperl;
+ my $result;
+
+ my $tainted = ${^TAINT};
+ my %args = @_;
+ exists $args{switches} && grep m/^-T$/, @{$args{switches}} and $tainted = $tainted + 1;
+
+ if ($tainted) {
+ # We will assume that if you're running under -T, you really mean to
+ # run a fresh perl, so we'll brute force launder everything for you
+ my $sep;
+
+ eval "require Config; Config->import";
+ if ($@) {
+ warn "test.pl had problems loading Config: $@";
+ $sep = ':';
+ } else {
+ $sep = $Config{path_sep};
+ }
+
+ my @keys = grep {exists $ENV{$_}} qw(CDPATH IFS ENV BASH_ENV);
+ local @ENV{@keys} = ();
+ # Untaint, plus take out . and empty string:
+ local $ENV{'DCL$PATH'} = $1 if $is_vms && ($ENV{'DCL$PATH'} =~ /(.*)/s);
+ $ENV{PATH} =~ /(.*)/s;
+ local $ENV{PATH} =
+ join $sep, grep { $_ ne "" and $_ ne "." and -d $_ and
+ ($is_mswin or $is_vms or !(stat && (stat _)[2]&0022)) }
+ split quotemeta ($sep), $1;
+ $ENV{PATH} .= "$sep/bin" if $is_cygwin; # Must have /bin under Cygwin
+
+ $runperl =~ /(.*)/s;
+ $runperl = $1;
+
+ $result = `$runperl`;
+ } else {
+ $result = `$runperl`;
}
- my $result = `$runperl`;
$result =~ s/\n\n/\n/ if $is_vms; # XXX pipes sometimes double these
return $result;
}
+*run_perl = \&runperl; # Nice alias.
sub DIE {
- print STDERR "# @_\n";
+ _print_stderr "# @_\n";
exit 1;
}
# A somewhat safer version of the sometimes wrong $^X.
-my $Perl;
sub which_perl {
unless (defined $Perl) {
$Perl = $^X;
-
+
+ # VMS should have 'perl' aliased properly
+ return $Perl if $^O eq 'VMS';
+
my $exe;
eval "require Config; Config->import";
if ($@) {
$exe = $Config{_exe};
}
$exe = '' unless defined $exe;
-
+
# This doesn't absolutize the path: beware of future chdirs().
# We could do File::Spec->abs2rel() but that does getcwd()s,
# which is a bit heavyweight to do here.
-
+
if ($Perl =~ /^perl\Q$exe\E$/i) {
my $perl = "perl$exe";
eval "require File::Spec";
}
warn "which_perl: cannot find $Perl from $^X" unless -f $Perl;
-
+
# For subcommands to use.
$ENV{PERLEXE} = $Perl;
}
sub unlink_all {
foreach my $file (@_) {
1 while unlink $file;
- print STDERR "# Couldn't unlink '$file': $!\n" if -f $file;
+ _print_stderr "# Couldn't unlink '$file': $!\n" if -f $file;
}
}
+my %tmpfiles;
+END { unlink_all keys %tmpfiles }
+
+# A regexp that matches the tempfile names
+$::tempfile_regexp = 'tmp\d+[A-Z][A-Z]?';
+
+# Avoid ++, avoid ranges, avoid split //
+my @letters = qw(A B C D E F G H I J K L M N O P Q R S T U V W X Y Z);
+sub tempfile {
+ my $count = 0;
+ do {
+ my $temp = $count;
+ my $try = "tmp$$";
+ do {
+ $try .= $letters[$temp % 26];
+ $temp = int ($temp / 26);
+ } while $temp;
+ # Need to note all the file names we allocated, as a second request may
+ # come before the first is created.
+ if (!-e $try && !$tmpfiles{$try}) {
+ # We have a winner
+ $tmpfiles{$try}++;
+ return $try;
+ }
+ $count = $count + 1;
+ } while $count < 26 * 26;
+ die "Can't find temporary file name starting 'tmp$$'";
+}
-my $tmpfile = "misctmp000";
-1 while -f ++$tmpfile;
-END { unlink_all $tmpfile }
+# This is the temporary file for _fresh_perl
+my $tmpfile = tempfile();
#
# _fresh_perl
if( $^O eq 'VMS' ) {
$prog =~ s#/dev/null#NL:#;
- # VMS file locking
+ # VMS file locking
$prog =~ s{if \(-e _ and -f _ and -r _\)}
{if (-e _ and -f _)}
}
- print TEST $prog, "\n";
+ print TEST $prog;
close TEST or die "Cannot close $tmpfile: $!";
my $results = runperl(%$runperl_args);
# Clean up the results into something a bit more predictable.
$results =~ s/\n+$//;
- $results =~ s/at\s+misctmp\d+\s+line/at - line/g;
- $results =~ s/of\s+misctmp\d+\s+aborted/of - aborted/g;
+ $results =~ s/at\s+$::tempfile_regexp\s+line/at - line/g;
+ $results =~ s/of\s+$::tempfile_regexp\s+aborted/of - aborted/g;
# bison says 'parse error' instead of 'syntax error',
# various yaccs may or may not capitalize 'syntax'.
my $pass = $resolve->($results);
unless ($pass) {
- print STDERR "# PROG: $switch\n$prog\n";
- print STDERR "# EXPECTED:\n", $resolve->(), "\n";
- print STDERR "# GOT:\n$results\n";
- print STDERR "# STATUS: $status\n";
+ _diag "# PROG: \n$prog\n";
+ _diag "# EXPECTED:\n", $resolve->(), "\n";
+ _diag "# GOT:\n$results\n";
+ _diag "# STATUS: $status\n";
}
- ($name) = $prog =~ /^(.{1,35})/ unless $name;
+ # Use the first line of the program as a name if none was given
+ unless( $name ) {
+ ($first_line, $name) = $prog =~ /^((.{1,50}).*)/;
+ $name .= '...' if length $first_line > length $name;
+ }
_ok($pass, _where(), "fresh_perl - $name");
}
#
-# run_perl_is
+# fresh_perl_is
#
# Combination of run_perl() and is().
#
sub fresh_perl_is {
my($prog, $expected, $runperl_args, $name) = @_;
+ local $Level = 2;
_fresh_perl($prog,
sub { @_ ? $_[0] eq $expected : $expected },
$runperl_args, $name);
}
#
-# run_perl_like
+# fresh_perl_like
#
# Combination of run_perl() and like().
#
sub fresh_perl_like {
my($prog, $expected, $runperl_args, $name) = @_;
+ local $Level = 2;
_fresh_perl($prog,
sub { @_ ?
$_[0] =~ (ref $expected ? $expected : /$expected/) :
$runperl_args, $name);
}
+sub can_ok ($@) {
+ my($proto, @methods) = @_;
+ my $class = ref $proto || $proto;
+
+ unless( @methods ) {
+ return _ok( 0, _where(), "$class->can(...)" );
+ }
+
+ my @nok = ();
+ foreach my $method (@methods) {
+ local($!, $@); # don't interfere with caller's $@
+ # eval sometimes resets $!
+ eval { $proto->can($method) } || push @nok, $method;
+ }
+
+ my $name;
+ $name = @methods == 1 ? "$class->can('$methods[0]')"
+ : "$class->can(...)";
+
+ _ok( !@nok, _where(), $name );
+}
+
+sub isa_ok ($$;$) {
+ my($object, $class, $obj_name) = @_;
+
+ my $diag;
+ $obj_name = 'The object' unless defined $obj_name;
+ my $name = "$obj_name isa $class";
+ if( !defined $object ) {
+ $diag = "$obj_name isn't defined";
+ }
+ elsif( !ref $object ) {
+ $diag = "$obj_name isn't a reference";
+ }
+ else {
+ # We can't use UNIVERSAL::isa because we want to honor isa() overrides
+ local($@, $!); # eval sometimes resets $!
+ my $rslt = eval { $object->isa($class) };
+ if( $@ ) {
+ if( $@ =~ /^Can't call method "isa" on unblessed reference/ ) {
+ if( !UNIVERSAL::isa($object, $class) ) {
+ my $ref = ref $object;
+ $diag = "$obj_name isn't a '$class' it's a '$ref'";
+ }
+ } else {
+ die <<WHOA;
+WHOA! I tried to call ->isa on your object and got some weird error.
+This should never happen. Please contact the author immediately.
+Here's the error.
+$@
+WHOA
+ }
+ }
+ elsif( !$rslt ) {
+ my $ref = ref $object;
+ $diag = "$obj_name isn't a '$class' it's a '$ref'";
+ }
+ }
+
+ _ok( !$diag, _where(), $name );
+}
+
+# Set a watchdog to timeout the entire test file
+# NOTE: If the test file uses 'threads', then call the watchdog() function
+# _AFTER_ the 'threads' module is loaded.
+sub watchdog ($)
+{
+ my $timeout = shift;
+ my $timeout_msg = 'Test process timed out - terminating';
+
+ my $pid_to_kill = $$; # PID for this process
+
+ # Don't use a watchdog process if 'threads' is loaded -
+ # use a watchdog thread instead
+ if (! $threads::threads) {
+
+ # On Windows and VMS, try launching a watchdog process
+ # using system(1, ...) (see perlport.pod)
+ if (($^O eq 'MSWin32') || ($^O eq 'VMS')) {
+ # On Windows, try to get the 'real' PID
+ if ($^O eq 'MSWin32') {
+ eval { require Win32; };
+ if (defined(&Win32::GetCurrentProcessId)) {
+ $pid_to_kill = Win32::GetCurrentProcessId();
+ }
+ }
+
+ # If we still have a fake PID, we can't use this method at all
+ return if ($pid_to_kill <= 0);
+
+ # Launch watchdog process
+ my $watchdog;
+ eval {
+ local $SIG{'__WARN__'} = sub {
+ _diag("Watchdog warning: $_[0]");
+ };
+ my $sig = $^O eq 'VMS' ? 'TERM' : 'KILL';
+ $watchdog = system(1, which_perl(), '-e',
+ "sleep($timeout);" .
+ "warn('# $timeout_msg\n');" .
+ "kill($sig, $pid_to_kill);");
+ };
+ if ($@ || ($watchdog <= 0)) {
+ _diag('Failed to start watchdog');
+ _diag($@) if $@;
+ undef($watchdog);
+ return;
+ }
+
+ # Add END block to parent to terminate and
+ # clean up watchdog process
+ eval "END { local \$! = 0; local \$? = 0;
+ wait() if kill('KILL', $watchdog); };";
+ return;
+ }
+
+ # Try using fork() to generate a watchdog process
+ my $watchdog;
+ eval { $watchdog = fork() };
+ if (defined($watchdog)) {
+ if ($watchdog) { # Parent process
+ # Add END block to parent to terminate and
+ # clean up watchdog process
+ eval "END { local \$! = 0; local \$? = 0;
+ wait() if kill('KILL', $watchdog); };";
+ return;
+ }
+
+ ### Watchdog process code
+
+ # Load POSIX if available
+ eval { require POSIX; };
+
+ # Execute the timeout
+ sleep($timeout - 2) if ($timeout > 2); # Workaround for perlbug #49073
+ sleep(2);
+
+ # Kill test process if still running
+ if (kill(0, $pid_to_kill)) {
+ _diag($timeout_msg);
+ kill('KILL', $pid_to_kill);
+ }
+
+ # Don't execute END block (added at beginning of this file)
+ $NO_ENDING = 1;
+
+ # Terminate ourself (i.e., the watchdog)
+ POSIX::_exit(1) if (defined(&POSIX::_exit));
+ exit(1);
+ }
+
+ # fork() failed - fall through and try using a thread
+ }
+
+ # Use a watchdog thread because either 'threads' is loaded,
+ # or fork() failed
+ if (eval { require threads; }) {
+ threads->create(sub {
+ # Load POSIX if available
+ eval { require POSIX; };
+
+ # Execute the timeout
+ my $time_left = $timeout;
+ do {
+ $time_left -= sleep($time_left);
+ } while ($time_left > 0);
+
+ # Kill the parent (and ourself)
+ select(STDERR); $| = 1;
+ _diag($timeout_msg);
+ POSIX::_exit(1) if (defined(&POSIX::_exit));
+ my $sig = $^O eq 'VMS' ? 'TERM' : 'KILL';
+ kill($sig, $pid_to_kill);
+ })->detach();
+ return;
+ }
+
+ # If everything above fails, then just use an alarm timeout
+ if (eval { alarm($timeout); 1; }) {
+ # Load POSIX if available
+ eval { require POSIX; };
+
+ # Alarm handler will do the actual 'killing'
+ $SIG{'ALRM'} = sub {
+ select(STDERR); $| = 1;
+ _diag($timeout_msg);
+ POSIX::_exit(1) if (defined(&POSIX::_exit));
+ my $sig = $^O eq 'VMS' ? 'TERM' : 'KILL';
+ kill($sig, $pid_to_kill);
+ };
+ }
+}
+
1;
https://perl5.git.perl.org / perl5.git / blobdiff