Commit | Line | Data |
---|---|---|
02fc2eee NC |
1 | #!./perl -w |
2 | ||
b4023995 | 3 | my $child; |
26bf1728 | 4 | my $can_fork; |
47520729 | 5 | my $has_perlio; |
b4023995 | 6 | |
02fc2eee NC |
7 | BEGIN { |
8 | chdir 't' if -d 't'; | |
9 | @INC = '../lib'; | |
10 | require Config; import Config; | |
ffebc68c | 11 | $can_fork = $Config{'d_fork'} |
095a0503 JH |
12 | || ($^O eq 'MSWin32' && $Config{useithreads} |
13 | && $Config{ccflags} =~ /-DPERL_IMPLICIT_SYS\b/); | |
ffebc68c | 14 | |
26bf1728 | 15 | |
b5d2fea7 | 16 | if ($^O eq "hpux" or $Config{'extensions'} !~ /\bSocket\b/ && |
02fc2eee NC |
17 | !(($^O eq 'VMS') && $Config{d_socket})) { |
18 | print "1..0\n"; | |
19 | exit 0; | |
b4023995 NC |
20 | } |
21 | ||
22 | # Too many things in this test will hang forever if something is wrong, | |
23 | # so we need a self destruct timer. And IO can hang despite an alarm. | |
24 | ||
25 | # This is convoluted, but we must fork before Test::More, else child's | |
26 | # Test::More thinks that it ran no tests, and prints a message to that | |
27 | # effect | |
26bf1728 | 28 | if( $can_fork) { |
b4023995 NC |
29 | my $parent = $$; |
30 | $child = fork; | |
31 | die "Fork failed" unless defined $child; | |
32 | if (!$child) { | |
33 | $SIG{INT} = sub {exit 0}; # You have 60 seconds. Your time starts now. | |
34 | my $must_finish_by = time + 60; | |
35 | my $remaining; | |
208b703c | 36 | while (($remaining = $must_finish_by - time) > 0) { |
b4023995 NC |
37 | sleep $remaining; |
38 | } | |
39 | warn "Something unexpectedly hung during testing"; | |
40 | kill "INT", $parent or die "Kill failed: $!"; | |
41 | exit 1; | |
42 | } | |
02fc2eee | 43 | } |
47520729 JH |
44 | unless ($has_perlio = find PerlIO::Layer 'perlio') { |
45 | print <<EOF; | |
46 | # Since you don't have perlio you might get failures with UTF-8 locales. | |
47 | EOF | |
48 | } | |
02fc2eee | 49 | } |
b4023995 | 50 | |
02fc2eee NC |
51 | use Socket; |
52 | use Test::More; | |
53 | use strict; | |
54 | use warnings; | |
5ec8c883 | 55 | use Errno; |
02fc2eee NC |
56 | |
57 | my $skip_reason; | |
58 | ||
59 | if( !$Config{d_alarm} ) { | |
60 | plan skip_all => "alarm() not implemented on this platform"; | |
26bf1728 | 61 | } elsif( !$can_fork ) { |
b4023995 | 62 | plan skip_all => "fork() not implemented on this platform"; |
02fc2eee NC |
63 | } else { |
64 | # This should fail but not die if there is real socketpair | |
65 | eval {socketpair LEFT, RIGHT, -1, -1, -1}; | |
a5f25d7a PG |
66 | if ($@ =~ /^Unsupported socket function "socketpair" called/ || |
67 | $! =~ /^The operation requested is not supported./) { # Stratus VOS | |
02fc2eee NC |
68 | plan skip_all => 'No socketpair (real or emulated)'; |
69 | } else { | |
70 | eval {AF_UNIX}; | |
71 | if ($@ =~ /^Your vendor has not defined Socket macro AF_UNIX/) { | |
72 | plan skip_all => 'No AF_UNIX'; | |
73 | } else { | |
cd0506f1 | 74 | plan tests => 45; |
02fc2eee NC |
75 | } |
76 | } | |
77 | } | |
78 | ||
b4023995 NC |
79 | # But we'll install an alarm handler in case any of the races below fail. |
80 | $SIG{ALRM} = sub {die "Unexpected alarm during testing"}; | |
02fc2eee NC |
81 | |
82 | ok (socketpair (LEFT, RIGHT, AF_UNIX, SOCK_STREAM, PF_UNSPEC), | |
83 | "socketpair (LEFT, RIGHT, AF_UNIX, SOCK_STREAM, PF_UNSPEC)") | |
c5f49a01 | 84 | or print "# \$\! = $!\n"; |
02fc2eee | 85 | |
47520729 JH |
86 | if ($has_perlio) { |
87 | binmode(LEFT, ":bytes"); | |
88 | binmode(RIGHT, ":bytes"); | |
89 | } | |
b018c34d | 90 | |
02fc2eee NC |
91 | my @left = ("hello ", "world\n"); |
92 | my @right = ("perl ", "rules!"); # Not like I'm trying to bias any survey here. | |
93 | ||
94 | foreach (@left) { | |
95 | # is (syswrite (LEFT, $_), length $_, "write " . _qq ($_) . " to left"); | |
96 | is (syswrite (LEFT, $_), length $_, "syswrite to left"); | |
97 | } | |
98 | foreach (@right) { | |
99 | # is (syswrite (RIGHT, $_), length $_, "write " . _qq ($_) . " to right"); | |
100 | is (syswrite (RIGHT, $_), length $_, "syswrite to right"); | |
101 | } | |
102 | ||
103 | # stream socket, so our writes will become joined: | |
104 | my ($buffer, $expect); | |
105 | $expect = join '', @right; | |
22954800 | 106 | undef $buffer; |
02fc2eee NC |
107 | is (read (LEFT, $buffer, length $expect), length $expect, "read on left"); |
108 | is ($buffer, $expect, "content what we expected?"); | |
109 | $expect = join '', @left; | |
22954800 | 110 | undef $buffer; |
02fc2eee NC |
111 | is (read (RIGHT, $buffer, length $expect), length $expect, "read on right"); |
112 | is ($buffer, $expect, "content what we expected?"); | |
113 | ||
c5f49a01 | 114 | ok (shutdown(LEFT, SHUT_WR), "shutdown left for writing"); |
b4023995 NC |
115 | # This will hang forever if eof is buggy, and alarm doesn't interrupt system |
116 | # Calls. Hence the child process minder. | |
381c1bae RGS |
117 | SKIP: { |
118 | skip "SCO OpenUNIX has a bug with shutdown", 2 if $^O =~ /^svr/; | |
c5f49a01 | 119 | local $SIG{ALRM} = sub { warn "EOF on right took over 3 seconds" }; |
e03d5f0a | 120 | local $TODO = "Known problems with unix sockets on $^O" |
8bfa5a13 | 121 | if $^O eq 'hpux' || $^O eq 'super-ux'; |
c5f49a01 | 122 | alarm 3; |
cd0506f1 | 123 | $! = 0; |
c5f49a01 | 124 | ok (eof RIGHT, "right is at EOF"); |
8bfa5a13 JH |
125 | local $TODO = "Known problems with unix sockets on $^O" |
126 | if $^O eq 'unicos' || $^O eq 'unicosmk'; | |
505fdf5d | 127 | is ($!, '', 'and $! should report no error'); |
c5f49a01 NC |
128 | alarm 60; |
129 | } | |
130 | ||
b5d2fea7 | 131 | my $err = $!; |
c5f49a01 NC |
132 | $SIG{PIPE} = 'IGNORE'; |
133 | { | |
134 | local $SIG{ALRM} | |
135 | = sub { warn "syswrite to left didn't fail within 3 seconds" }; | |
136 | alarm 3; | |
b5d2fea7 NIS |
137 | # Split the system call from the is() - is() does IO so |
138 | # (say) a flush may do a seek which on a pipe may disturb errno | |
139 | my $ans = syswrite (LEFT, "void"); | |
140 | $err = $!; | |
141 | is ($ans, undef, "syswrite to shutdown left should fail"); | |
c5f49a01 NC |
142 | alarm 60; |
143 | } | |
26bf1728 | 144 | { |
b5d2fea7 NIS |
145 | # This may need skipping on some OSes - restoring value saved above |
146 | # should help | |
147 | $! = $err; | |
5ec8c883 | 148 | ok (($!{EPIPE} or $!{ESHUTDOWN}), '$! should be EPIPE or ESHUTDOWN') |
b5d2fea7 | 149 | or printf "\$\!=%d(%s)\n", $err, $err; |
c5f49a01 | 150 | } |
02fc2eee NC |
151 | |
152 | my @gripping = (chr 255, chr 127); | |
153 | foreach (@gripping) { | |
154 | is (syswrite (RIGHT, $_), length $_, "syswrite to right"); | |
155 | } | |
156 | ||
157 | ok (!eof LEFT, "left is not at EOF"); | |
158 | ||
159 | $expect = join '', @gripping; | |
22954800 | 160 | undef $buffer; |
02fc2eee NC |
161 | is (read (LEFT, $buffer, length $expect), length $expect, "read on left"); |
162 | is ($buffer, $expect, "content what we expected?"); | |
163 | ||
164 | ok (close LEFT, "close left"); | |
165 | ok (close RIGHT, "close right"); | |
166 | ||
26bf1728 | 167 | |
02fc2eee NC |
168 | # And now datagrams |
169 | # I suspect we also need a self destruct time-bomb for these, as I don't see any | |
170 | # guarantee that the stack won't drop a UDP packet, even if it is for localhost. | |
171 | ||
26bf1728 | 172 | SKIP: { |
a64c954a | 173 | skip "No usable SOCK_DGRAM for socketpair", 24 if ($^O =~ /^(MSWin32|os2)\z/); |
e5e77ef9 | 174 | local $TODO = "socketpair not supported on $^O" if $^O eq 'nto'; |
26bf1728 | 175 | |
02fc2eee NC |
176 | ok (socketpair (LEFT, RIGHT, AF_UNIX, SOCK_DGRAM, PF_UNSPEC), |
177 | "socketpair (LEFT, RIGHT, AF_UNIX, SOCK_DGRAM, PF_UNSPEC)") | |
c5f49a01 | 178 | or print "# \$\! = $!\n"; |
02fc2eee | 179 | |
47520729 JH |
180 | if ($has_perlio) { |
181 | binmode(LEFT, ":bytes"); | |
182 | binmode(RIGHT, ":bytes"); | |
183 | } | |
b018c34d | 184 | |
02fc2eee NC |
185 | foreach (@left) { |
186 | # is (syswrite (LEFT, $_), length $_, "write " . _qq ($_) . " to left"); | |
187 | is (syswrite (LEFT, $_), length $_, "syswrite to left"); | |
188 | } | |
189 | foreach (@right) { | |
190 | # is (syswrite (RIGHT, $_), length $_, "write " . _qq ($_) . " to right"); | |
191 | is (syswrite (RIGHT, $_), length $_, "syswrite to right"); | |
192 | } | |
193 | ||
194 | # stream socket, so our writes will become joined: | |
195 | my ($total); | |
196 | $total = join '', @right; | |
197 | foreach $expect (@right) { | |
22954800 | 198 | undef $buffer; |
02fc2eee NC |
199 | is (sysread (LEFT, $buffer, length $total), length $expect, "read on left"); |
200 | is ($buffer, $expect, "content what we expected?"); | |
201 | } | |
202 | $total = join '', @left; | |
203 | foreach $expect (@left) { | |
22954800 | 204 | undef $buffer; |
02fc2eee NC |
205 | is (sysread (RIGHT, $buffer, length $total), length $expect, "read on right"); |
206 | is ($buffer, $expect, "content what we expected?"); | |
207 | } | |
208 | ||
209 | ok (shutdown(LEFT, 1), "shutdown left for writing"); | |
10b9e826 | 210 | |
02fc2eee NC |
211 | # eof uses buffering. eof is indicated by a sysread of zero. |
212 | # but for a datagram socket there's no way it can know nothing will ever be | |
213 | # sent | |
10b9e826 JH |
214 | SKIP: { |
215 | skip "$^O does length 0 udp reads", 2 if ($^O eq 'os390'); | |
216 | ||
02fc2eee NC |
217 | my $alarmed = 0; |
218 | local $SIG{ALRM} = sub { $alarmed = 1; }; | |
219 | print "# Approximate forever as 3 seconds. Wait 'forever'...\n"; | |
220 | alarm 3; | |
22954800 | 221 | undef $buffer; |
02fc2eee NC |
222 | is (sysread (RIGHT, $buffer, 1), undef, |
223 | "read on right should be interrupted"); | |
224 | is ($alarmed, 1, "alarm should have fired"); | |
225 | } | |
10b9e826 | 226 | |
02fc2eee NC |
227 | alarm 30; |
228 | ||
229 | #ok (eof RIGHT, "right is at EOF"); | |
230 | ||
231 | foreach (@gripping) { | |
232 | is (syswrite (RIGHT, $_), length $_, "syswrite to right"); | |
233 | } | |
234 | ||
235 | $total = join '', @gripping; | |
236 | foreach $expect (@gripping) { | |
22954800 | 237 | undef $buffer; |
02fc2eee NC |
238 | is (sysread (LEFT, $buffer, length $total), length $expect, "read on left"); |
239 | is ($buffer, $expect, "content what we expected?"); | |
240 | } | |
241 | ||
242 | ok (close LEFT, "close left"); | |
243 | ok (close RIGHT, "close right"); | |
b4023995 | 244 | |
26bf1728 NIS |
245 | } # end of DGRAM SKIP |
246 | ||
b4023995 NC |
247 | kill "INT", $child or warn "Failed to kill child process $child: $!"; |
248 | exit 0; |