Commit | Line | Data |
---|---|---|
a43cb6b7 BS |
1 | #!./perl |
2 | ||
3 | BEGIN { | |
4 | chdir 't' if -d 't'; | |
5 | @INC = '../lib'; | |
220939e6 | 6 | require './test.pl'; |
a43cb6b7 BS |
7 | } |
8 | ||
9 | # Script to test auto flush on fork/exec/system/qx. The idea is to | |
10 | # print "Pe" to a file from a parent process and "rl" to the same file | |
11 | # from a child process. If buffers are flushed appropriately, the | |
12 | # file should contain "Perl". We'll see... | |
13 | use Config; | |
14 | use warnings; | |
15 | use strict; | |
16 | ||
17 | # This attempts to mirror the #ifdef forest found in perl.h so that we | |
18 | # know when to run these tests. If that forest ever changes, change | |
19 | # it here too or expect test gratuitous test failures. | |
375927eb PK |
20 | my $useperlio = defined $Config{useperlio} ? $Config{useperlio} eq 'define' ? 1 : 0 : 0; |
21 | my $fflushNULL = defined $Config{fflushNULL} ? $Config{fflushNULL} eq 'define' ? 1 : 0 : 0; | |
22 | my $d_sfio = defined $Config{d_sfio} ? $Config{d_sfio} eq 'define' ? 1 : 0 : 0; | |
23 | my $fflushall = defined $Config{fflushall} ? $Config{fflushall} eq 'define' ? 1 : 0 : 0; | |
24 | my $d_fork = defined $Config{d_fork} ? $Config{d_fork} eq 'define' ? 1 : 0 : 0; | |
25 | ||
26 | if ($useperlio || $fflushNULL || $d_sfio) { | |
a6dd0448 | 27 | print "1..7\n"; |
a43cb6b7 | 28 | } else { |
375927eb | 29 | if ($fflushall) { |
a6dd0448 | 30 | print "1..7\n"; |
a43cb6b7 BS |
31 | } else { |
32 | print "1..0 # Skip: fflush(NULL) or equivalent not available\n"; | |
33 | exit; | |
34 | } | |
35 | } | |
36 | ||
a6dd0448 GS |
37 | my $runperl = $^X =~ m/\s/ ? qq{"$^X"} : $^X; |
38 | $runperl .= qq{ "-I../lib"}; | |
39 | ||
a43cb6b7 BS |
40 | sub file_eq { |
41 | my $f = shift; | |
42 | my $val = shift; | |
43 | ||
44 | open IN, $f or die "open $f: $!"; | |
45 | chomp(my $line = <IN>); | |
46 | close IN; | |
47 | ||
48 | print "# got $line\n"; | |
49 | print "# expected $val\n"; | |
50 | return $line eq $val; | |
51 | } | |
52 | ||
53 | # This script will be used as the command to execute from | |
54 | # child processes | |
62a28c97 NC |
55 | my $ffprog = tempfile(); |
56 | open PROG, "> $ffprog" or die "open $ffprog: $!"; | |
a43cb6b7 BS |
57 | print PROG <<'EOF'; |
58 | my $f = shift; | |
59 | my $str = shift; | |
60 | open OUT, ">> $f" or die "open $f: $!"; | |
61 | print OUT $str; | |
62 | close OUT; | |
63 | EOF | |
64 | ; | |
62a28c97 | 65 | close PROG or die "close $ffprog: $!";; |
a43cb6b7 BS |
66 | |
67 | $| = 0; # we want buffered output | |
68 | ||
69 | # Test flush on fork/exec | |
375927eb | 70 | if (!$d_fork) { |
a43cb6b7 BS |
71 | print "ok 1 # skipped: no fork\n"; |
72 | } else { | |
62a28c97 | 73 | my $f = tempfile(); |
a43cb6b7 BS |
74 | open OUT, "> $f" or die "open $f: $!"; |
75 | print OUT "Pe"; | |
76 | my $pid = fork; | |
77 | if ($pid) { | |
78 | # Parent | |
79 | wait; | |
80 | close OUT or die "close $f: $!"; | |
81 | } elsif (defined $pid) { | |
82 | # Kid | |
83 | print OUT "r"; | |
62a28c97 | 84 | my $command = qq{$runperl "$ffprog" "$f" "l"}; |
a43cb6b7 BS |
85 | print "# $command\n"; |
86 | exec $command or die $!; | |
87 | exit; | |
88 | } else { | |
89 | # Bang | |
90 | die "fork: $!"; | |
91 | } | |
92 | ||
93 | print file_eq($f, "Perl") ? "ok 1\n" : "not ok 1\n"; | |
a43cb6b7 BS |
94 | } |
95 | ||
96 | # Test flush on system/qx/pipe open | |
97 | my %subs = ( | |
98 | "system" => sub { | |
99 | my $c = shift; | |
100 | system $c; | |
101 | }, | |
102 | "qx" => sub { | |
103 | my $c = shift; | |
104 | qx{$c}; | |
105 | }, | |
106 | "popen" => sub { | |
107 | my $c = shift; | |
108 | open PIPE, "$c|" or die "$c: $!"; | |
109 | close PIPE; | |
110 | }, | |
111 | ); | |
112 | my $t = 2; | |
113 | for (qw(system qx popen)) { | |
114 | my $code = $subs{$_}; | |
62a28c97 NC |
115 | my $f = tempfile(); |
116 | my $command = qq{$runperl $ffprog "$f" "rl"}; | |
a43cb6b7 BS |
117 | open OUT, "> $f" or die "open $f: $!"; |
118 | print OUT "Pe"; | |
f126f811 | 119 | close OUT or die "close $f: $!";; |
a43cb6b7 BS |
120 | print "# $command\n"; |
121 | $code->($command); | |
a43cb6b7 | 122 | print file_eq($f, "Perl") ? "ok $t\n" : "not ok $t\n"; |
a43cb6b7 BS |
123 | ++$t; |
124 | } | |
a6dd0448 | 125 | |
220939e6 JH |
126 | my $cmd = _create_runperl( |
127 | switches => ['-l'], | |
128 | prog => | |
129 | sprintf('print qq[ok $_] for (%d..%d)', $t, $t+2)); | |
130 | print "# cmd = '$cmd'\n"; | |
a6dd0448 GS |
131 | open my $CMD, "$cmd |" or die "Can't open pipe to '$cmd': $!"; |
132 | while (<$CMD>) { | |
133 | system("$runperl -e 0"); | |
134 | print; | |
135 | } | |
136 | close $CMD; | |
137 | $t += 3; |