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package Plack::App::CGIBin::Streaming; |
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1375309
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use 5.014; |
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946
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use strict; |
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795
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use warnings; |
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1415
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our $VERSION = '0.05'; |
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BEGIN { |
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# this works around a bug in perl |
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# In Perl (at least up to 5.18.0) the first assignment to $SIG{CHLD} |
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# or $SIG{CLD} determines which name is later passed to the signal handler |
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# on systems like Linux that support both names. |
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# This hack tries to be the first such assignment in the perl program |
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# and thus pin down that name. |
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# Net::Server based servers like starman rely on "CHLD" to be passed to |
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# the signal handler. |
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local $SIG{CHLD}=$SIG{CHLD}; |
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} |
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use parent qw/Plack::App::File/; |
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673355
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use CGI; |
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343208
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22345
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use CGI::Compile; |
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584762
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809
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use File::Spec; |
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17981
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use Plack::App::CGIBin::Streaming::Request; |
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12919
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use Plack::App::CGIBin::Streaming::IO; |
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722
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use Plack::Util::Accessor qw/request_class |
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request_params |
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154
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preload/; |
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2
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0
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291403
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sub allow_path_info { 1 } |
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sub prepare_app { |
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1
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1319
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my $self=shift; |
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37
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# warn "\n\nprepare_app [@{$self->preload}]\n\n"; |
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230
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$self->SUPER::prepare_app; |
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100
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181
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return unless $self->preload; |
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42
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3
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333
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for my $pattern (@{$self->preload}) { |
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75
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my $pat=($pattern=~m!^/! |
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? $pattern |
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: $self->root.'/'.$pattern); |
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# warn " pat=$pat\n"; |
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6
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972
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for my $fn (glob $pat) { |
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# warn "preloading $fn\n"; |
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9
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21
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$self->{_compiled}->{$fn} = do { |
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9
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159
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local $0 = $fn; # keep FindBin happy |
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52
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9
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87
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$self->mkapp(CGI::Compile->compile($fn)); |
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}; |
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} |
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} |
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} |
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58
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our $R; |
59
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8
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8
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1
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9809
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sub request { return $R } |
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61
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sub mkapp { |
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16
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16
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0
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52123
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my ($self, $sub) = @_; |
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64
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return sub { |
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22
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92
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my $env = shift; |
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return sub { |
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22
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642
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my $responder = shift; |
68
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69
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22
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108
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local $env->{SCRIPT_NAME} = $env->{'plack.file.SCRIPT_NAME'}; |
70
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22
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93
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local $env->{PATH_INFO} = $env->{'plack.file.PATH_INFO'}; |
71
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72
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22
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1368
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my @env_keys = grep !/^(?:plack|psgi.*)\./, keys %$env; |
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101
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local @ENV{@env_keys} = @{$env}{@env_keys}; |
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1181
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74
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75
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130
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select STDOUT; |
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90
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$|=0; |
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7
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7
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226
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binmode STDOUT, 'via(Plack::App::CGIBin::Streaming::IO)'; |
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8
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80
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8
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336
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22
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1185
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78
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79
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22
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50
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274
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my $class = ($self->request_class // |
80
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'Plack::App::CGIBin::Streaming::Request'); |
81
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22
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100
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129
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local $R = $class->new |
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( |
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env => $env, |
84
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responder => $responder, |
85
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22
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1287
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@{$self->request_params//[]}, |
86
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); |
87
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88
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22
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126
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local *STDIN = $env->{'psgi.input'}; |
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22
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761
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binmode STDIN, 'via(Plack::App::CGIBin::Streaming::IO)'; |
90
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91
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# CGI::Compile localizes $0 and %SIG and calls |
92
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# CGI::initialize_globals. |
93
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22
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63
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my $err = eval { |
94
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22
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259
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local ($/, $\) = ($/, $\); |
95
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22
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50
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132
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$sub->() // ''; |
96
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}; |
97
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22
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16191
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my $exc = $@; |
98
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22
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132
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$R->suppress_flush=1; # turn off normal flush behavior |
99
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22
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99
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$R->binmode_ok=1; # allow binmode to remove the layer |
100
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{ |
101
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22
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22
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11050
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no warnings 'uninitialized'; |
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46
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22
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5335
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22
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45
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102
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22
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155
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binmode STDOUT; |
103
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22
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116
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binmode STDIN; |
104
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} |
105
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22
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143
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$R->finalize; |
106
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22
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50
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1195
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unless (defined $err) { # $sub died |
107
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0
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0
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warn "$env->{REQUEST_URI}: $exc"; |
108
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} |
109
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22
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340
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}; |
110
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16
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440
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}; |
111
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} |
112
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113
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sub serve_path { |
114
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22
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22
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0
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3165694
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my($self, $env, $file) = @_; |
115
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116
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22
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50
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346
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die "need a server that supports streaming" unless $env->{'psgi.streaming'}; |
117
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118
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22
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66
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823
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my $app = $self->{_compiled}->{$file} ||= do { |
119
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7
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601
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local $0 = $file; # keep FindBin happy |
120
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121
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7
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477
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$self->mkapp(CGI::Compile->compile($file)); |
122
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}; |
123
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124
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22
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178
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$app->($env); |
125
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} |
126
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127
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1; |
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129
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__END__ |