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.\" ========================================================================
.\"
.IX Title "HTTP::Headers::Fast 3pm"
.TH HTTP::Headers::Fast 3pm "2019-04-16" "perl v5.16.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
HTTP::Headers::Fast \- faster implementation of HTTP::Headers
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&  use HTTP::Headers::Fast;
\&  # and, same as HTTP::Headers.
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
HTTP::Headers::Fast is a perl class for parsing/writing \s-1HTTP\s0 headers.
.PP
The interface is same as HTTP::Headers.
.SH "WHY YET ANOTHER ONE?"
.IX Header "WHY YET ANOTHER ONE?"
HTTP::Headers is a very good. But I needed a faster implementation, fast  =)
.SH "ADDITIONAL METHODS"
.IX Header "ADDITIONAL METHODS"
.IP "as_string_without_sort" 4
.IX Item "as_string_without_sort"
as_string method sorts the header names.But, sorting is bit slow.
.Sp
In this method, stringify the instance of HTTP::Headers::Fast without sorting.
.IP "psgi_flatten" 4
.IX Item "psgi_flatten"
returns \s-1PSGI\s0 compatible arrayref of header.
.Sp
.Vb 1
\&    my $headers:ArrayRef = $header\->flatten
.Ve
.IP "psgi_flatten_without_sort" 4
.IX Item "psgi_flatten_without_sort"
same as flatten but returns arrayref without sorting.
.ie n .SH "@ISA HACK"
.el .SH "\f(CW@ISA\fP HACK"
.IX Header "@ISA HACK"
If you want HTTP::Headers::Fast to pretend like it's really HTTP::Headers, you can try the following hack:
.PP
.Vb 1
\&    unshift @HTTP::Headers::Fast::ISA, \*(AqHTTP::Headers\*(Aq;
.Ve
.SH "BENCHMARK"
.IX Header "BENCHMARK"
.Vb 1
\&    HTTP::Headers 5.818, HTTP::Headers::Fast 0.01
\&
\&    \-\- push_header
\&            Rate orig fast
\&    orig 144928/s   \-\- \-20%
\&    fast 181818/s  25%   \-\-
\&
\&    \-\- push_header_many
\&            Rate orig fast
\&    orig 74627/s   \-\- \-16%
\&    fast 89286/s  20%   \-\-
\&
\&    \-\- get_date
\&            Rate orig fast
\&    orig 34884/s   \-\- \-14%
\&    fast 40541/s  16%   \-\-
\&
\&    \-\- set_date
\&            Rate orig fast
\&    orig 21505/s   \-\- \-19%
\&    fast 26525/s  23%   \-\-
\&
\&    \-\- scan
\&            Rate orig fast
\&    orig 57471/s   \-\-  \-1%
\&    fast 57803/s   1%   \-\-
\&
\&    \-\- get_header
\&            Rate orig fast
\&    orig 120337/s   \-\- \-24%
\&    fast 157729/s  31%   \-\-
\&
\&    \-\- set_header
\&            Rate orig fast
\&    orig  79745/s   \-\- \-30%
\&    fast 113766/s  43%   \-\-
\&
\&    \-\- get_content_length
\&            Rate orig fast
\&    orig 182482/s   \-\- \-77%
\&    fast 793651/s 335%   \-\-
\&
\&    \-\- as_string
\&            Rate orig fast
\&    orig 23753/s   \-\- \-41%
\&    fast 40161/s  69%   \-\-
.Ve
.SH "AUTHOR"
.IX Header "AUTHOR"
.Vb 2
\&    Tokuhiro Matsuno E<lt>tokuhirom@gmail.comE<gt>
\&    Daisuke Maki
.Ve
.PP
And HTTP::Headers' originally written by Gisle Aas.
.SH "THANKS TO"
.IX Header "THANKS TO"
Markstos
.PP
Tatsuhiko Miyagawa
.SH "SEE ALSO"
.IX Header "SEE ALSO"
HTTP::Headers
.SH "LICENSE"
.IX Header "LICENSE"
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.