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