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1 | #!./perl |
2 | |
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3 | # $RCSfile: pipe.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:31 $ |
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4 | |
5 | $| = 1; |
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6 | print "1..8\n"; |
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7 | |
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8 | open(PIPE, "|-") || (exec 'tr', 'YX', 'ko'); |
9 | print PIPE "Xk 1\n"; |
10 | print PIPE "oY 2\n"; |
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11 | close PIPE; |
12 | |
13 | if (open(PIPE, "-|")) { |
14 | while(<PIPE>) { |
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15 | s/^not //; |
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16 | print; |
17 | } |
18 | } |
19 | else { |
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20 | print STDOUT "not ok 3\n"; |
21 | exec 'echo', 'not ok 4'; |
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22 | } |
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23 | |
24 | pipe(READER,WRITER) || die "Can't open pipe"; |
25 | |
26 | if ($pid = fork) { |
27 | close WRITER; |
28 | while(<READER>) { |
29 | s/^not //; |
30 | y/A-Z/a-z/; |
31 | print; |
32 | } |
33 | } |
34 | else { |
35 | die "Couldn't fork" unless defined $pid; |
36 | close READER; |
37 | print WRITER "not ok 5\n"; |
38 | open(STDOUT,">&WRITER") || die "Can't dup WRITER to STDOUT"; |
39 | close WRITER; |
40 | exec 'echo', 'not ok 6'; |
41 | } |
42 | |
43 | |
44 | pipe(READER,WRITER) || die "Can't open pipe"; |
45 | close READER; |
46 | |
47 | $SIG{'PIPE'} = 'broken_pipe'; |
48 | |
49 | sub broken_pipe { |
50 | print "ok 7\n"; |
51 | } |
52 | |
53 | print WRITER "not ok 7\n"; |
54 | close WRITER; |
55 | |
56 | print "ok 8\n"; |