1 | use Coro; |
1 | use Coro; |
2 | use Coro::Semaphore; |
2 | use Coro::Semaphore; |
3 | use Coro::Event; |
3 | use Coro::Event; |
4 | use Coro::Socket; |
4 | use Coro::Socket; |
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5 | use Coro::Signal; |
5 | |
6 | |
6 | use HTTP::Date; |
7 | use HTTP::Date; |
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8 | use POSIX (); |
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9 | |
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10 | use Compress::Zlib (); |
7 | |
11 | |
8 | no utf8; |
12 | no utf8; |
9 | use bytes; |
13 | use bytes; |
10 | |
14 | |
11 | # at least on my machine, this thingy serves files |
15 | # at least on my machine, this thingy serves files |
… | |
… | |
13 | # and quite a bit slower than thttpd :( |
17 | # and quite a bit slower than thttpd :( |
14 | |
18 | |
15 | $SIG{PIPE} = 'IGNORE'; |
19 | $SIG{PIPE} = 'IGNORE'; |
16 | |
20 | |
17 | our $accesslog; |
21 | our $accesslog; |
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22 | our $errorlog; |
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23 | |
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24 | our $NOW; |
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25 | our $HTTP_NOW; |
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26 | |
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27 | Event->timer(interval => 1, hard => 1, cb => sub { |
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28 | $NOW = time; |
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29 | $HTTP_NOW = time2str $NOW; |
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30 | })->now; |
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31 | |
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32 | if ($ERROR_LOG) { |
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33 | use IO::Handle; |
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34 | open $errorlog, ">>$ERROR_LOG" |
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35 | or die "$ERROR_LOG: $!"; |
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36 | $errorlog->autoflush(1); |
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37 | } |
18 | |
38 | |
19 | if ($ACCESS_LOG) { |
39 | if ($ACCESS_LOG) { |
20 | use IO::Handle; |
40 | use IO::Handle; |
21 | open $accesslog, ">>$ACCESS_LOG" |
41 | open $accesslog, ">>$ACCESS_LOG" |
22 | or die "$ACCESS_LOG: $!"; |
42 | or die "$ACCESS_LOG: $!"; |
… | |
… | |
24 | } |
44 | } |
25 | |
45 | |
26 | sub slog { |
46 | sub slog { |
27 | my $level = shift; |
47 | my $level = shift; |
28 | my $format = shift; |
48 | my $format = shift; |
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49 | my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW); |
29 | printf "---: $format\n", @_; |
50 | printf "$NOW: $format\n", @_; |
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51 | printf $errorlog "$NOW: $format\n", @_ if $errorlog; |
30 | } |
52 | } |
31 | |
53 | |
32 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
54 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
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55 | our $httpevent = new Coro::Signal; |
33 | |
56 | |
34 | our $wait_factor = 0.95; |
57 | our $queue_file = new transferqueue $MAX_TRANSFERS; |
35 | |
58 | our $queue_index = new transferqueue 10; |
36 | our @transfers = ( |
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37 | [(new Coro::Semaphore $MAX_TRANSFERS_SMALL || 50), 1], |
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38 | [(new Coro::Semaphore $MAX_TRANSFERS_LARGE || 50), 1], |
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39 | ); |
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40 | |
59 | |
41 | my @newcons; |
60 | my @newcons; |
42 | my @pool; |
61 | my @pool; |
43 | |
62 | |
44 | # one "execution thread" |
63 | # one "execution thread" |
45 | sub handler { |
64 | sub handler { |
46 | while () { |
65 | while () { |
47 | my $new = pop @newcons; |
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48 | if ($new) { |
66 | if (@newcons) { |
49 | eval { |
67 | eval { |
50 | conn->new(@$new)->handle; |
68 | conn->new(@{pop @newcons})->handle; |
51 | }; |
69 | }; |
52 | slog 1, "$@" if $@ && !ref $@; |
70 | slog 1, "$@" if $@ && !ref $@; |
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71 | |
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72 | $httpevent->broadcast; # only for testing, but doesn't matter much |
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73 | |
53 | $connections->up; |
74 | $connections->up; |
54 | } else { |
75 | } else { |
55 | last if @pool >= $MAX_POOL; |
76 | last if @pool >= $MAX_POOL; |
56 | push @pool, $Coro::current; |
77 | push @pool, $Coro::current; |
57 | schedule; |
78 | schedule; |
58 | } |
79 | } |
59 | } |
80 | } |
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81 | } |
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82 | |
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83 | sub listen_on { |
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84 | my $listen = $_[0]; |
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85 | |
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86 | push @listen_sockets, $listen; |
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87 | |
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88 | # the "main thread" |
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89 | async { |
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90 | slog 1, "accepting connections"; |
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91 | while () { |
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92 | $connections->down; |
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93 | push @newcons, [$listen->accept]; |
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94 | #slog 3, "accepted @$connections ".scalar(@pool); |
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95 | if (@pool) { |
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96 | (pop @pool)->ready; |
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97 | } else { |
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98 | async \&handler; |
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99 | } |
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100 | |
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101 | } |
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102 | }; |
60 | } |
103 | } |
61 | |
104 | |
62 | my $http_port = new Coro::Socket |
105 | my $http_port = new Coro::Socket |
63 | LocalAddr => $SERVER_HOST, |
106 | LocalAddr => $SERVER_HOST, |
64 | LocalPort => $SERVER_PORT, |
107 | LocalPort => $SERVER_PORT, |
65 | ReuseAddr => 1, |
108 | ReuseAddr => 1, |
66 | Listen => 50, |
109 | Listen => 50, |
67 | or die "unable to start server"; |
110 | or die "unable to start server"; |
68 | |
111 | |
69 | push @listen_sockets, $http_port; |
112 | listen_on $http_port; |
70 | |
113 | |
71 | our $NOW; |
114 | if ($SERVER_PORT2) { |
72 | our $HTTP_NOW; |
115 | my $http_port = new Coro::Socket |
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116 | LocalAddr => $SERVER_HOST, |
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117 | LocalPort => $SERVER_PORT2, |
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118 | ReuseAddr => 1, |
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119 | Listen => 50, |
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120 | or die "unable to start server"; |
73 | |
121 | |
74 | Event->timer(interval => 1, hard => 1, cb => sub { |
122 | listen_on $http_port; |
75 | $NOW = time; |
123 | } |
76 | $HTTP_NOW = time2str $NOW; |
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77 | })->now; |
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78 | |
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79 | # the "main thread" |
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80 | async { |
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81 | slog 1, "accepting connections"; |
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82 | while () { |
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83 | $connections->down; |
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84 | push @newcons, [$http_port->accept]; |
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85 | #slog 3, "accepted @$connections ".scalar(@pool); |
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86 | if (@pool) { |
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87 | (pop @pool)->ready; |
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88 | } else { |
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89 | async \&handler; |
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90 | } |
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91 | |
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92 | } |
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93 | }; |
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94 | |
124 | |
95 | package conn; |
125 | package conn; |
96 | |
126 | |
97 | use Socket; |
127 | use Socket; |
98 | use HTTP::Date; |
128 | use HTTP::Date; |
… | |
… | |
125 | |
155 | |
126 | read_mimetypes; |
156 | read_mimetypes; |
127 | |
157 | |
128 | sub new { |
158 | sub new { |
129 | my $class = shift; |
159 | my $class = shift; |
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160 | my $fh = shift; |
130 | my $peername = shift; |
161 | my $peername = shift; |
131 | my $fh = shift; |
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132 | my $self = bless { fh => $fh }, $class; |
162 | my $self = bless { fh => $fh }, $class; |
133 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
163 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
134 | or $self->err(500, "unable to decode peername"); |
164 | or $self->err(500, "unable to decode peername"); |
135 | |
165 | |
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166 | $self->{remote_addr} = |
136 | $self->{remote_addr} = inet_ntoa $iaddr; |
167 | $self->{remote_id} = inet_ntoa $iaddr; |
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168 | |
137 | $self->{time} = $::NOW; |
169 | $self->{time} = $::NOW; |
138 | |
170 | |
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171 | weaken ($Coro::current->{conn} = $self); |
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172 | |
139 | $::conns++; |
173 | $::conns++; |
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174 | $::maxconns = $::conns if $::conns > $::maxconns; |
140 | |
175 | |
141 | $self; |
176 | $self; |
142 | } |
177 | } |
143 | |
178 | |
144 | sub DESTROY { |
179 | sub DESTROY { |
145 | my $self = shift; |
180 | #my $self = shift; |
146 | |
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147 | $::conns--; |
181 | $::conns--; |
148 | |
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149 | $self->eoconn; |
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150 | } |
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151 | |
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152 | # end of connection |
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153 | sub eoconn { |
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154 | my $self = shift; |
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155 | |
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156 | # clean up hints |
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157 | delete $conn{$self->{remote_id}}{$self*1}; |
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158 | delete $uri{$self->{remote_id}}{$self->{uri}}{$self*1}; |
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159 | } |
182 | } |
160 | |
183 | |
161 | sub slog { |
184 | sub slog { |
162 | my $self = shift; |
185 | my $self = shift; |
163 | main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]"); |
186 | main::slog($_[0], "$self->{remote_id}> $_[1]"); |
164 | } |
187 | } |
165 | |
188 | |
166 | sub response { |
189 | sub response { |
167 | my ($self, $code, $msg, $hdr, $content) = @_; |
190 | my ($self, $code, $msg, $hdr, $content) = @_; |
168 | my $res = "HTTP/1.1 $code $msg\015\012"; |
191 | my $res = "HTTP/1.1 $code $msg\015\012"; |
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192 | my $GZ = ""; |
169 | |
193 | |
170 | $self->{h}{connection} ||= $hdr->{Connection}; |
194 | if (exists $hdr->{Connection}) { |
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195 | if ($hdr->{Connection} =~ /close/) { |
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196 | $self->{h}{connection} = "close" |
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197 | } |
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198 | } else { |
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199 | if ($self->{version} < 1.1) { |
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200 | if ($self->{h}{connection} =~ /keep-alive/i) { |
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201 | $hdr->{Connection} = "Keep-Alive"; |
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202 | } else { |
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203 | $self->{h}{connection} = "close" |
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204 | } |
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205 | } |
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206 | } |
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207 | |
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208 | if ($self->{method} ne "HEAD" |
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209 | && $self->{h}{"accept-encoding"} =~ /\bgzip\b/ |
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210 | && 400 < length $content |
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211 | && $hdr->{"Content-Length"} == length $content |
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212 | && !exists $hdr->{"Content-Encoding"} |
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213 | ) { |
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214 | my $orig = length $content; |
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215 | $hdr->{"Content-Encoding"} = "gzip"; |
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216 | $content = Compress::Zlib::memGzip(\$content); |
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217 | $hdr->{"Content-Length"} = length $content; |
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218 | $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig); |
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219 | } |
171 | |
220 | |
172 | $res .= "Date: $HTTP_NOW\015\012"; |
221 | $res .= "Date: $HTTP_NOW\015\012"; |
173 | |
222 | |
174 | while (my ($h, $v) = each %$hdr) { |
223 | while (my ($h, $v) = each %$hdr) { |
175 | $res .= "$h: $v\015\012" |
224 | $res .= "$h: $v\015\012" |
176 | } |
225 | } |
177 | $res .= "\015\012"; |
226 | $res .= "\015\012"; |
178 | |
227 | |
179 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
228 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
180 | |
229 | |
181 | my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; |
230 | my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW). |
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231 | " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ. |
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232 | " \"$self->{h}{referer}\"\n"; |
182 | |
233 | |
183 | print $accesslog $log if $accesslog; |
234 | print $::accesslog $log if $::accesslog; |
184 | print STDERR $log; |
235 | print STDERR $log; |
185 | |
236 | |
186 | $self->{written} += |
237 | $self->{written} += |
187 | print {$self->{fh}} $res; |
238 | print {$self->{fh}} $res; |
188 | } |
239 | } |
… | |
… | |
247 | my (%hdr, $h, $v); |
298 | my (%hdr, $h, $v); |
248 | |
299 | |
249 | $hdr{lc $1} .= ",$2" |
300 | $hdr{lc $1} .= ",$2" |
250 | while $req =~ /\G |
301 | while $req =~ /\G |
251 | ([^:\000-\040]+): |
302 | ([^:\000-\040]+): |
252 | [\008\040]* |
303 | [\010\040]* |
253 | ((?: [^\015\012]+ | \015\012[\008\040] )*) |
304 | ((?: [^\015\012]+ | \015\012[\010\040] )*) |
254 | \015\012 |
305 | \015\012 |
255 | /gxc; |
306 | /gxc; |
256 | |
307 | |
257 | $req =~ /\G\015\012$/ |
308 | $req =~ /\G\015\012$/ |
258 | or $self->err(400, "bad request"); |
309 | or $self->err(400, "bad request"); |
… | |
… | |
270 | $id .= "[".$self->{h}{"x-forwarded-for"}."]"; |
321 | $id .= "[".$self->{h}{"x-forwarded-for"}."]"; |
271 | } |
322 | } |
272 | |
323 | |
273 | $self->{remote_id} = $id; |
324 | $self->{remote_id} = $id; |
274 | |
325 | |
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326 | weaken (local $conn{$id}{$self*1} = $self); |
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327 | |
275 | if ($blocked{$id}) { |
328 | if ($blocked{$id}) { |
276 | $self->err_blocked($blocked{$id}) |
329 | $self->err_blocked |
277 | if $blocked{$id} > $::NOW; |
330 | if $blocked{$id}[0] > $::NOW; |
278 | |
331 | |
279 | delete $blocked{$id}; |
332 | delete $blocked{$id}; |
280 | } |
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281 | |
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282 | if (%{$conn{$id}} >= $::MAX_CONN_IP) { |
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283 | my $delay = $::PER_TIMEOUT + 15; |
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284 | while (%{$conn{$id}} >= $::MAX_CONN_IP) { |
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285 | if ($delay <= 0) { |
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286 | $self->slog(2, "blocked ip $id"); |
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287 | $self->err_blocked; |
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288 | } else { |
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289 | Coro::Event::do_timer(after => 4); $delay -= 4; |
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290 | } |
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291 | } |
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292 | } |
333 | } |
293 | |
334 | |
294 | # find out server name and port |
335 | # find out server name and port |
295 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
336 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
296 | $host = $1; |
337 | $host = $1; |
… | |
… | |
300 | |
341 | |
301 | if (defined $host) { |
342 | if (defined $host) { |
302 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
343 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
303 | } else { |
344 | } else { |
304 | ($self->{server_port}, $host) |
345 | ($self->{server_port}, $host) |
305 | = unpack_sockaddr_in $self->{fh}->getsockname |
346 | = unpack_sockaddr_in $self->{fh}->sockname |
306 | or $self->err(500, "unable to get socket name"); |
347 | or $self->err(500, "unable to get socket name"); |
307 | $host = inet_ntoa $host; |
348 | $host = inet_ntoa $host; |
308 | } |
349 | } |
309 | |
350 | |
310 | $self->{server_name} = $host; |
351 | $self->{server_name} = $host; |
311 | |
352 | |
312 | # enter ourselves into various lists |
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313 | weaken ($conn{$id}{$self*1} = $self); |
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314 | weaken ($uri{$id}{$self->{uri}}{$self*1} = $self); |
353 | weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self); |
315 | |
354 | |
316 | eval { |
355 | eval { |
317 | $self->map_uri; |
356 | $self->map_uri; |
318 | $self->respond; |
357 | $self->respond; |
319 | }; |
358 | }; |
320 | |
359 | |
321 | $self->eoconn; |
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322 | |
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323 | die if $@ && !ref $@; |
360 | die if $@ && !ref $@; |
324 | |
361 | |
325 | last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1; |
362 | last if $self->{h}{connection} =~ /close/i; |
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363 | |
|
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364 | $httpevent->broadcast; |
326 | |
365 | |
327 | $fh->timeout($::PER_TIMEOUT); |
366 | $fh->timeout($::PER_TIMEOUT); |
328 | } |
367 | } |
|
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368 | } |
|
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369 | |
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370 | sub block { |
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371 | my $self = shift; |
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372 | |
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373 | $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]]; |
|
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374 | $self->slog(2, "blocked ip $self->{remote_id}"); |
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375 | $self->err_blocked; |
329 | } |
376 | } |
330 | |
377 | |
331 | # uri => path mapping |
378 | # uri => path mapping |
332 | sub map_uri { |
379 | sub map_uri { |
333 | my $self = shift; |
380 | my $self = shift; |
… | |
… | |
380 | |
427 | |
381 | sub respond { |
428 | sub respond { |
382 | my $self = shift; |
429 | my $self = shift; |
383 | my $path = $self->{path}; |
430 | my $path = $self->{path}; |
384 | |
431 | |
385 | stat $path |
432 | if ($self->{name} =~ s%^/internal/([^/]+)%%) { |
386 | or $self->err(404, "not found"); |
433 | if ($::internal{$1}) { |
387 | |
434 | $::internal{$1}->($self); |
388 | $self->{stat} = [stat _]; |
|
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389 | |
|
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390 | # idiotic netscape sends idiotic headers AGAIN |
|
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391 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
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392 | ? str2time $1 : 0; |
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393 | |
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394 | if (-d _ && -r _) { |
|
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395 | # directory |
|
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396 | if ($path !~ /\/$/) { |
|
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397 | # create a redirect to get the trailing "/" |
|
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398 | # we don't try to avoid the :80 |
|
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399 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
|
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400 | } else { |
435 | } else { |
401 | $ims < $self->{stat}[9] |
436 | $self->err(404, "not found"); |
|
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437 | } |
|
|
438 | } else { |
|
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439 | |
|
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440 | stat $path |
402 | or $self->err(304, "not modified"); |
441 | or $self->err(404, "not found"); |
403 | |
442 | |
404 | if (-r "$path/index.html") { |
443 | $self->{stat} = [stat _]; |
405 | $self->{path} .= "/index.html"; |
444 | |
406 | $self->handle_file; |
445 | # idiotic netscape sends idiotic headers AGAIN |
|
|
446 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
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447 | ? str2time $1 : 0; |
|
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448 | |
|
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449 | if (-d _ && -r _) { |
|
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450 | # directory |
|
|
451 | if ($path !~ /\/$/) { |
|
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452 | # create a redirect to get the trailing "/" |
|
|
453 | # we don't try to avoid the :80 |
|
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454 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
407 | } else { |
455 | } else { |
|
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456 | $ims < $self->{stat}[9] |
|
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457 | or $self->err(304, "not modified"); |
|
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458 | |
|
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459 | if (-r "$path/index.html") { |
|
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460 | # replace directory "size" by index.html filesize |
|
|
461 | $self->{stat} = [stat ($self->{path} .= "/index.html")]; |
|
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462 | $self->handle_file($queue_index); |
|
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463 | } else { |
408 | $self->handle_dir; |
464 | $self->handle_dir; |
409 | } |
465 | } |
410 | } |
466 | } |
411 | } elsif (-f _ && -r _) { |
467 | } elsif (-f _ && -r _) { |
412 | -x _ and $self->err(403, "forbidden"); |
468 | -x _ and $self->err(403, "forbidden"); |
|
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469 | |
|
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470 | if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
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471 | my $timeout = $::NOW + 10; |
|
|
472 | while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
|
473 | if ($timeout < $::NOW) { |
|
|
474 | $self->block($::BLOCKTIME, "too many connections"); |
|
|
475 | } else { |
|
|
476 | $httpevent->wait; |
|
|
477 | } |
|
|
478 | } |
|
|
479 | } |
|
|
480 | |
413 | $self->handle_file; |
481 | $self->handle_file($queue_file); |
414 | } else { |
482 | } else { |
415 | $self->err(404, "not found"); |
483 | $self->err(404, "not found"); |
|
|
484 | } |
416 | } |
485 | } |
417 | } |
486 | } |
418 | |
487 | |
419 | sub handle_dir { |
488 | sub handle_dir { |
420 | my $self = shift; |
489 | my $self = shift; |
… | |
… | |
422 | |
491 | |
423 | $self->response(200, "ok", |
492 | $self->response(200, "ok", |
424 | { |
493 | { |
425 | "Content-Type" => "text/html", |
494 | "Content-Type" => "text/html", |
426 | "Content-Length" => length $idx, |
495 | "Content-Length" => length $idx, |
|
|
496 | "Last-Modified" => time2str ($self->{stat}[9]), |
427 | }, |
497 | }, |
428 | $idx); |
498 | $idx); |
429 | } |
499 | } |
430 | |
500 | |
431 | sub handle_file { |
501 | sub handle_file { |
432 | my $self = shift; |
502 | my ($self, $queue) = @_; |
433 | my $length = $self->{stat}[7]; |
503 | my $length = $self->{stat}[7]; |
434 | my $queue = $::transfers[$length >= $::TRANSFER_SMALL]; |
|
|
435 | my $hdr = { |
504 | my $hdr = { |
436 | "Last-Modified" => time2str ((stat _)[9]), |
505 | "Last-Modified" => time2str ((stat _)[9]), |
437 | }; |
506 | }; |
438 | |
507 | |
439 | my @code = (200, "ok"); |
508 | my @code = (200, "ok"); |
… | |
… | |
456 | $self->err(416, "not satisfiable", $hdr, ""); |
525 | $self->err(416, "not satisfiable", $hdr, ""); |
457 | |
526 | |
458 | satisfiable: |
527 | satisfiable: |
459 | # check for segmented downloads |
528 | # check for segmented downloads |
460 | if ($l && $::NO_SEGMENTED) { |
529 | if ($l && $::NO_SEGMENTED) { |
461 | my $delay = $::PER_TIMEOUT + 15; |
530 | my $timeout = $::NOW + 15; |
462 | while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { |
531 | while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { |
463 | if ($delay <= 0) { |
532 | if ($timeout <= $::NOW) { |
|
|
533 | $self->block($::BLOCKTIME, "segmented downloads are forbidden"); |
464 | $self->err_segmented_download; |
534 | #$self->err_segmented_download; |
465 | } else { |
535 | } else { |
466 | Coro::Event::do_timer(after => 4); $delay -= 4; |
536 | $httpevent->wait; |
467 | } |
537 | } |
468 | } |
538 | } |
469 | } |
539 | } |
470 | |
540 | |
471 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
541 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
… | |
… | |
484 | $self->response(@code, $hdr, ""); |
554 | $self->response(@code, $hdr, ""); |
485 | |
555 | |
486 | if ($self->{method} eq "GET") { |
556 | if ($self->{method} eq "GET") { |
487 | $self->{time} = $::NOW; |
557 | $self->{time} = $::NOW; |
488 | |
558 | |
489 | my $fudge = $queue->[0]->waiters; |
559 | my $current = $Coro::current; |
490 | $fudge = $fudge ? ($fudge+1)/$fudge : 1; |
|
|
491 | |
|
|
492 | $queue->[1] *= $fudge; |
|
|
493 | my $transfer = $queue->[0]->guard; |
|
|
494 | |
|
|
495 | if ($fudge != 1) { |
|
|
496 | $queue->[1] /= $fudge; |
|
|
497 | $queue->[1] = $queue->[1] * $::wait_factor |
|
|
498 | + ($::NOW - $self->{time}) * (1 - $::wait_factor); |
|
|
499 | } |
|
|
500 | $self->{time} = $::NOW; |
|
|
501 | |
|
|
502 | $self->{fh}->writable or return; |
|
|
503 | |
560 | |
504 | my ($fh, $buf, $r); |
561 | my ($fh, $buf, $r); |
505 | my $current = $Coro::current; |
562 | |
506 | open $fh, "<", $self->{path} |
563 | open $fh, "<", $self->{path} |
507 | or die "$self->{path}: late open failure ($!)"; |
564 | or die "$self->{path}: late open failure ($!)"; |
508 | |
565 | |
509 | $h -= $l - 1; |
566 | $h -= $l - 1; |
510 | |
567 | |
511 | if (0) { |
568 | if (0) { # !AIO |
512 | if ($l) { |
569 | if ($l) { |
513 | sysseek $fh, $l, 0; |
570 | sysseek $fh, $l, 0; |
514 | } |
571 | } |
515 | } |
572 | } |
|
|
573 | |
|
|
574 | my $transfer = $queue->start_transfer($h); |
|
|
575 | my $locked; |
|
|
576 | my $bufsize = $::WAIT_BUFSIZE; # initial buffer size |
516 | |
577 | |
517 | while ($h > 0) { |
578 | while ($h > 0) { |
|
|
579 | unless ($locked) { |
|
|
580 | if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { |
|
|
581 | $bufsize = $::BUFSIZE; |
|
|
582 | $self->{time} = $::NOW; |
|
|
583 | } |
|
|
584 | } |
|
|
585 | |
|
|
586 | if ($blocked{$self->{remote_id}}) { |
|
|
587 | $self->{h}{connection} = "close"; |
|
|
588 | die bless {}, err::; |
|
|
589 | } |
|
|
590 | |
518 | if (0) { |
591 | if (0) { # !AIO |
519 | sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h |
592 | sysread $fh, $buf, $h > $bufsize ? $bufsize : $h |
520 | or last; |
593 | or last; |
521 | } else { |
594 | } else { |
522 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
595 | aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h), |
523 | $buf, 0, sub { |
596 | $buf, 0, sub { |
524 | $r = $_[0]; |
597 | $r = $_[0]; |
525 | Coro::ready($current); |
598 | Coro::ready($current); |
526 | }); |
599 | }); |
527 | &Coro::schedule; |
600 | &Coro::schedule; |