1Net::HTTP::NB(3) User Contributed Perl Documentation Net::HTTP::NB(3)
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6 Net::HTTP::NB - Non-blocking HTTP client
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9 version 6.22
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12 use Net::HTTP::NB;
13 my $s = Net::HTTP::NB->new(Host => "www.perl.com") || die $@;
14 $s->write_request(GET => "/");
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16 use IO::Select;
17 my $sel = IO::Select->new($s);
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19 READ_HEADER: {
20 die "Header timeout" unless $sel->can_read(10);
21 my($code, $mess, %h) = $s->read_response_headers;
22 redo READ_HEADER unless $code;
23 }
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25 while (1) {
26 die "Body timeout" unless $sel->can_read(10);
27 my $buf;
28 my $n = $s->read_entity_body($buf, 1024);
29 last unless $n;
30 print $buf;
31 }
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34 Same interface as "Net::HTTP" but it will never try multiple reads when
35 the read_response_headers() or read_entity_body() methods are invoked.
36 This make it possible to multiplex multiple Net::HTTP::NB using select
37 without risk blocking.
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39 If read_response_headers() did not see enough data to complete the
40 headers an empty list is returned.
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42 If read_entity_body() did not see new entity data in its read the value
43 -1 is returned.
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46 Net::HTTP
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49 Gisle Aas <gisle@activestate.com>
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52 This software is copyright (c) 2001 by Gisle Aas.
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54 This is free software; you can redistribute it and/or modify it under
55 the same terms as the Perl 5 programming language system itself.
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59perl v5.34.0 2022-01-24 Net::HTTP::NB(3)