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=head1 NAME Net::FastCGI::Constant - FastCGI protocol constants. =head1 DESCRIPTION FastCGI protocol constants. =head1 CONSTANTS Constants can either be imported individually or in sets grouped by tag names. The tag names are: =head2 C<:common> =over 4 =item C<FCGI_MAX_CONTENT_LEN> Maximum number of octets that the content component of the record can hold. (C<65535>) =item C<FCGI_HEADER_LEN> Number of octets in C<FCGI_Header>. (C<8>) =item C<FCGI_VERSION_1> Value for C<version> component of C<FCGI_Header>. (C<1>) =item C<FCGI_NULL_REQUEST_ID> Value for C<request_id> component of C<FCGI_Header>. (C<0>) =back =head2 C<:type> Values for C<type> component of C<FCGI_Header>. =over 4 =item C<FCGI_BEGIN_REQUEST> =item C<FCGI_ABORT_REQUEST> =item C<FCGI_END_REQUEST> =item C<FCGI_PARAMS> =item C<FCGI_STDIN> =item C<FCGI_STDOUT> =item C<FCGI_STDERR> =item C<FCGI_DATA> =item C<FCGI_GET_VALUES> =item C<FCGI_GET_VALUES_RESULT> =item C<FCGI_UNKNOWN_TYPE> =item C<FCGI_MAXTYPE> =back =head2 C<:flag> Mask for C<flags> component of C<FCGI_BeginRequestBody>. =over 4 =item C<FCGI_KEEP_CONN> =back =head2 C<:role> Values for C<role> component of C<FCGI_BeginRequestBody>. =over 4 =item C<FCGI_RESPONDER> =item C<FCGI_AUTHORIZER> =item C<FCGI_FILTER> =back =head2 C<:protocol_status> Values for C<protocol_status> component of C<FCGI_EndRequestBody>. =over 4 =item C<FCGI_REQUEST_COMPLETE> =item C<FCGI_CANT_MPX_CONN> =item C<FCGI_OVERLOADED> =item C<FCGI_UNKNOWN_ROLE> =back =head2 C<:value> Variable names for C<FCGI_GET_VALUES> / C<FCGI_GET_VALUES_RESULT> records. =over 4 =item C<FCGI_MAX_CONNS> =item C<FCGI_MAX_REQS> =item C<FCGI_MPXS_CONNS> =back =head2 C<:pack> C<pack()> / C<unpack()> templates =over 4 =item C<FCGI_Header> Octet/ 0 | 1 | / | | | 0 1 2 3 4 5 6 7 | 0 1 2 3 4 5 6 7 | +-----------------+-----------------+ 0 | Version | Type | +-----------------+-----------------+ 2 | Request ID | +-----------------+-----------------+ 4 | Content Length | +-----------------+-----------------+ 6 | Padding Length | Reserved | +-----------------+-----------------+ Total 8 octets Template: CCnnCx my ($version, $type, $request_id, $content_length, $padding_length) = unpack(FCGI_Header, $octets); =item C<FCGI_BeginRequestBody> Octet/ 0 | 1 | / | | | 0 1 2 3 4 5 6 7 | 0 1 2 3 4 5 6 7 | +-----------------+-----------------+ 0 | Role | +-----------------+-----------------+ 2 | Flags | | +-----------------+ + 4 | | + Reserved + 6 | | +-----------------+-----------------+ Total 8 octets Template: nCx5 my ($role, $flags) = unpack(FCGI_BeginRequestBody, $octets); =item C<FCGI_EndRequestBody> Octet/ 0 | 1 | / | | | 0 1 2 3 4 5 6 7 | 0 1 2 3 4 5 6 7 | +-----------------+-----------------+ 0 | | + Application Status + 2 | | +-----------------+-----------------+ 4 | Protocol Status | | +-----------------+ Reserved + 6 | | +-----------------+-----------------+ Total 8 octets Template: NCx3 my ($app_status, $protocol_status) = unpack(FCGI_EndRequestBody, $octets); =item C<FCGI_UnknownTypeBody> Octet/ 0 | 1 | / | | | 0 1 2 3 4 5 6 7 | 0 1 2 3 4 5 6 7 | +-----------------+-----------------+ 0 | Unknown Type | | +-----------------+ + 2 | | + + 4 | Reserved | + + 6 | | +-----------------+-----------------+ Total 8 octets Template: Cx7 my $unknown_type = unpack(FCGI_UnknownTypeBody, $octets); =back =head2 C<:name> Arrays containing names of value components. These are read-only. =over 4 =item C<@FCGI_TYPE_NAME> print $FCGI_TYPE_NAME[FCGI_BEGIN_REQUEST]; # FCGI_BEGIN_REQUEST =item C<@FCGI_ROLE_NAME> print $FCGI_ROLE_NAME[FCGI_RESPONDER]; # FCGI_RESPONDER =item C<@FCGI_PROTOCOL_STATUS_NAME> print $FCGI_PROTOCOL_STATUS_NAME[FCGI_OVERLOADED]; # FCGI_OVERLOADED =back I<Note> It's not safe to assume that C<exists> works for validation purposes, index C<0> might be C<undef>. Use boolean context instead: ($FCGI_TYPE_NAME[$type]) || die; =head1 EXPORTS None by default. All functions can be exported using the C<:all> tag or individually. =head1 SEE ALSO =over 4 =item L<http://www.fastcgi.com/devkit/doc/fcgi-spec.html> =back =head1 AUTHOR Christian Hansen C<chansen@cpan.org> =head1 COPYRIGHT Copyright 2008-2010 by Christian Hansen. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
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