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; |
5 | |
5 | |
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6 | use HTTP::Date; |
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7 | |
6 | no utf8; |
8 | no utf8; |
7 | use bytes; |
9 | use bytes; |
8 | |
10 | |
9 | # at least on my machine, this thingy serves files |
11 | # at least on my machine, this thingy serves files |
10 | # quite a bit faster than apache, ;) |
12 | # quite a bit faster than apache, ;) |
11 | # and quite a bit slower than thttpd :( |
13 | # and quite a bit slower than thttpd :( |
12 | |
14 | |
13 | $SIG{PIPE} = 'IGNORE'; |
15 | $SIG{PIPE} = 'IGNORE'; |
14 | |
16 | |
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17 | our $accesslog; |
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18 | |
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19 | if ($ACCESS_LOG) { |
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20 | use IO::Handle; |
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21 | open $accesslog, ">>$ACCESS_LOG" |
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22 | or die "$ACCESS_LOG: $!"; |
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23 | $accesslog->autoflush(1); |
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24 | } |
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25 | |
15 | sub slog { |
26 | sub slog { |
16 | my $level = shift; |
27 | my $level = shift; |
17 | my $format = shift; |
28 | my $format = shift; |
18 | printf "---: $format\n", @_; |
29 | printf "---: $format\n", @_; |
19 | } |
30 | } |
20 | |
31 | |
21 | my $connections = new Coro::Semaphore $MAX_CONNECTS; |
32 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
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33 | |
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34 | our $wait_factor = 0.95; |
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35 | |
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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 | ); |
22 | |
40 | |
23 | my @newcons; |
41 | my @newcons; |
24 | my @pool; |
42 | my @pool; |
25 | |
43 | |
26 | # one "execution thread" |
44 | # one "execution thread" |
… | |
… | |
48 | Listen => 50, |
66 | Listen => 50, |
49 | or die "unable to start server"; |
67 | or die "unable to start server"; |
50 | |
68 | |
51 | push @listen_sockets, $http_port; |
69 | push @listen_sockets, $http_port; |
52 | |
70 | |
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71 | our $NOW; |
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72 | our $HTTP_NOW; |
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73 | |
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74 | Event->timer(interval => 1, hard => 1, cb => sub { |
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75 | $NOW = time; |
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76 | $HTTP_NOW = time2str $NOW; |
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77 | })->now; |
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78 | |
53 | # the "main thread" |
79 | # the "main thread" |
54 | async { |
80 | async { |
55 | slog 1, "accepting connections"; |
81 | slog 1, "accepting connections"; |
56 | while () { |
82 | while () { |
57 | $connections->down; |
83 | $connections->down; |
58 | push @newcons, [$http_port->accept]; |
84 | push @newcons, [$http_port->accept]; |
59 | #slog 3, "accepted @$connections ".scalar(@pool); |
85 | #slog 3, "accepted @$connections ".scalar(@pool); |
60 | $::NOW = time; |
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61 | if (@pool) { |
86 | if (@pool) { |
62 | (pop @pool)->ready; |
87 | (pop @pool)->ready; |
63 | } else { |
88 | } else { |
64 | async \&handler; |
89 | async \&handler; |
65 | } |
90 | } |
… | |
… | |
74 | use Convert::Scalar 'weaken'; |
99 | use Convert::Scalar 'weaken'; |
75 | use Linux::AIO; |
100 | use Linux::AIO; |
76 | |
101 | |
77 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
102 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
78 | |
103 | |
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104 | my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4; |
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105 | |
79 | Event->io(fd => Linux::AIO::poll_fileno, |
106 | Event->io(fd => Linux::AIO::poll_fileno, |
80 | poll => 'r', async => 1, |
107 | poll => 'r', async => 1, |
81 | cb => \&Linux::AIO::poll_cb ); |
108 | cb => \&Linux::AIO::poll_cb); |
82 | |
109 | |
83 | our %conn; # $conn{ip}{fh} => connobj |
110 | our %conn; # $conn{ip}{self} => connobj |
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111 | our %uri; # $uri{ip}{uri}{self} |
84 | our %blocked; |
112 | our %blocked; |
85 | our %mimetype; |
113 | our %mimetype; |
86 | |
114 | |
87 | sub read_mimetypes { |
115 | sub read_mimetypes { |
88 | local *M; |
116 | local *M; |
… | |
… | |
121 | sub DESTROY { |
149 | sub DESTROY { |
122 | my $self = shift; |
150 | my $self = shift; |
123 | |
151 | |
124 | $::conns--; |
152 | $::conns--; |
125 | |
153 | |
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154 | $self->eoconn; |
126 | delete $conn{$self->{remote_addr}}{$self*1}; |
155 | delete $conn{$self->{remote_addr}}{$self*1}; |
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156 | } |
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157 | |
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158 | # end of connection |
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159 | sub eoconn { |
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160 | my $self = shift; |
127 | delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; |
161 | delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; |
128 | } |
162 | } |
129 | |
163 | |
130 | sub slog { |
164 | sub slog { |
131 | my $self = shift; |
165 | my $self = shift; |
132 | main::slog($_[0], "$self->{remote_addr}> $_[1]"); |
166 | main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]"); |
133 | } |
167 | } |
134 | |
168 | |
135 | sub response { |
169 | sub response { |
136 | my ($self, $code, $msg, $hdr, $content) = @_; |
170 | my ($self, $code, $msg, $hdr, $content) = @_; |
137 | my $res = "HTTP/1.1 $code $msg\015\012"; |
171 | my $res = "HTTP/1.1 $code $msg\015\012"; |
138 | |
172 | |
139 | #$res .= "Connection: close\015\012"; |
173 | $self->{h}{connection} ||= $hdr->{Connection}; |
140 | $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( |
174 | |
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175 | $res .= "Date: $HTTP_NOW\015\012"; |
141 | |
176 | |
142 | while (my ($h, $v) = each %$hdr) { |
177 | while (my ($h, $v) = each %$hdr) { |
143 | $res .= "$h: $v\015\012" |
178 | $res .= "$h: $v\015\012" |
144 | } |
179 | } |
145 | $res .= "\015\012"; |
180 | $res .= "\015\012"; |
146 | |
181 | |
147 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
182 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
148 | |
183 | |
149 | print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# |
184 | my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; |
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185 | |
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186 | print $accesslog $log if $accesslog; |
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187 | print STDERR $log; |
150 | |
188 | |
151 | $self->{written} += |
189 | $self->{written} += |
152 | print {$self->{fh}} $res; |
190 | print {$self->{fh}} $res; |
153 | } |
191 | } |
154 | |
192 | |
155 | sub err { |
193 | sub err { |
156 | my $self = shift; |
194 | my $self = shift; |
157 | my ($code, $msg, $hdr, $content) = @_; |
195 | my ($code, $msg, $hdr, $content) = @_; |
158 | |
196 | |
159 | unless (defined $content) { |
197 | unless (defined $content) { |
160 | $content = "$code $msg"; |
198 | $content = "$code $msg\n"; |
161 | $hdr->{"Content-Type"} = "text/plain"; |
199 | $hdr->{"Content-Type"} = "text/plain"; |
162 | $hdr->{"Content-Length"} = length $content; |
200 | $hdr->{"Content-Length"} = length $content; |
163 | } |
201 | } |
164 | $hdr->{"Connection"} = "close"; |
202 | $hdr->{"Connection"} = "close"; |
165 | |
203 | |
166 | $self->response($code, $msg, $hdr, $content); |
204 | $self->response($code, $msg, $hdr, $content); |
167 | |
205 | |
168 | die bless {}, err::; |
206 | die bless {}, err::; |
169 | } |
207 | } |
170 | |
208 | |
171 | sub err_blocked { |
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172 | my $self = shift; |
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173 | my $ip = $self->{remote_addr}; |
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174 | my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; |
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175 | |
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176 | Coro::Event::do_timer(after => 15); |
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177 | |
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178 | $self->err(401, "too many connections", |
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179 | { |
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180 | "Content-Type" => "text/html", |
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181 | "Retry-After" => $::BLOCKTIME |
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182 | }, |
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183 | <<EOF); |
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184 | <html><p> |
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185 | You have been blocked because you opened too many connections. You |
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186 | may retry at</p> |
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187 | |
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188 | <p><blockquote>$time.</blockquote></p> |
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189 | |
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190 | <p>Until then, each new access will renew the block. You might want to have a |
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191 | look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p> |
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192 | </html> |
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193 | EOF |
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194 | } |
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195 | |
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196 | sub handle { |
209 | sub handle { |
197 | my $self = shift; |
210 | my $self = shift; |
198 | my $fh = $self->{fh}; |
211 | my $fh = $self->{fh}; |
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212 | |
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213 | my $host; |
199 | |
214 | |
200 | $fh->timeout($::REQ_TIMEOUT); |
215 | $fh->timeout($::REQ_TIMEOUT); |
201 | while() { |
216 | while() { |
202 | $self->{reqs}++; |
217 | $self->{reqs}++; |
203 | |
218 | |
… | |
… | |
223 | |
238 | |
224 | delete $blocked{$ip}; |
239 | delete $blocked{$ip}; |
225 | } |
240 | } |
226 | |
241 | |
227 | if (%{$conn{$ip}} > $::MAX_CONN_IP) { |
242 | if (%{$conn{$ip}} > $::MAX_CONN_IP) { |
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243 | my $delay = 120; |
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244 | while (%{$conn{$ip}} > $::MAX_CONN_IP) { |
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245 | if ($delay <= 0) { |
228 | $self->slog(2, "blocked ip $ip"); |
246 | $self->slog(2, "blocked ip $ip"); |
229 | $self->err_blocked; |
247 | $self->err_blocked; |
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248 | } else { |
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249 | Coro::Event::do_timer(after => 3); |
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250 | $delay -= 3; |
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251 | } |
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252 | } |
230 | } |
253 | } |
231 | |
254 | |
232 | $req =~ /^(?:\015\012)? |
255 | $req =~ /^(?:\015\012)? |
233 | (GET|HEAD) \040+ |
256 | (GET|HEAD) \040+ |
234 | ([^\040]+) \040+ |
257 | ([^\040]+) \040+ |
… | |
… | |
238 | |
261 | |
239 | $self->{method} = $1; |
262 | $self->{method} = $1; |
240 | $self->{uri} = $2; |
263 | $self->{uri} = $2; |
241 | $self->{version} = $3; |
264 | $self->{version} = $3; |
242 | |
265 | |
243 | $3 eq "1.0" or $3 eq "1.1" |
266 | $3 =~ /^1\./ |
244 | or $self->err(506, "http protocol version $3 not supported"); |
267 | or $self->err(506, "http protocol version $3 not supported"); |
245 | |
268 | |
246 | # parse headers |
269 | # parse headers |
247 | { |
270 | { |
248 | my (%hdr, $h, $v); |
271 | my (%hdr, $h, $v); |
… | |
… | |
260 | |
283 | |
261 | $self->{h}{$h} = substr $v, 1 |
284 | $self->{h}{$h} = substr $v, 1 |
262 | while ($h, $v) = each %hdr; |
285 | while ($h, $v) = each %hdr; |
263 | } |
286 | } |
264 | |
287 | |
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288 | # find out server name and port |
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289 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
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290 | $host = $1; |
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291 | } else { |
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292 | $host = $self->{h}{host}; |
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293 | } |
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294 | |
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295 | if (defined $host) { |
265 | $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; |
296 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
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297 | } else { |
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298 | ($self->{server_port}, $host) |
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299 | = unpack_sockaddr_in $self->{fh}->getsockname |
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300 | or $self->err(500, "unable to get socket name"); |
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301 | $host = inet_ntoa $host; |
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302 | } |
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303 | |
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304 | $self->{server_name} = $host; |
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305 | |
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306 | # remote id should be unique per user |
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307 | $self->{remote_id} = $self->{remote_addr}; |
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308 | |
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309 | if (exists $self->{h}{"client-ip"}) { |
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310 | $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]"; |
|
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311 | } elsif (exists $self->{h}{"x-forwarded-for"}) { |
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312 | $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]"; |
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313 | } |
266 | |
314 | |
267 | weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); |
315 | weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); |
268 | |
316 | |
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317 | eval { |
269 | $self->map_uri; |
318 | $self->map_uri; |
270 | $self->respond; |
319 | $self->respond; |
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320 | }; |
271 | |
321 | |
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322 | $self->eoconn; |
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323 | |
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324 | die if $@ && !ref $@; |
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325 | |
272 | last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; |
326 | last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1; |
273 | |
327 | |
274 | $self->slog(9, "persistant connection [".$self->{h}{"user-agent"}."][$self->{reqs}]"); |
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275 | $fh->timeout($::PER_TIMEOUT); |
328 | $fh->timeout($::PER_TIMEOUT); |
276 | } |
329 | } |
277 | } |
330 | } |
278 | |
331 | |
279 | # uri => path mapping |
332 | # uri => path mapping |
280 | sub map_uri { |
333 | sub map_uri { |
281 | my $self = shift; |
334 | my $self = shift; |
282 | my $host = $self->{h}{host} || "default"; |
335 | my $host = $self->{server_name}; |
283 | my $uri = $self->{uri}; |
336 | my $uri = $self->{uri}; |
284 | |
337 | |
285 | # some massaging, also makes it more secure |
338 | # some massaging, also makes it more secure |
286 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
339 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
287 | $uri =~ s%//+%/%g; |
340 | $uri =~ s%//+%/%g; |
… | |
… | |
297 | $self->{path} = "$::DOCROOT/$host$uri"; |
350 | $self->{path} = "$::DOCROOT/$host$uri"; |
298 | |
351 | |
299 | $self->access_check; |
352 | $self->access_check; |
300 | } |
353 | } |
301 | |
354 | |
302 | sub server_address { |
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303 | my $self = shift; |
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304 | my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname |
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305 | or $self->err(500, "unable to get socket name"); |
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306 | ((inet_ntoa $iaddr), $port); |
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307 | } |
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308 | |
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309 | sub server_host { |
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310 | my $self = shift; |
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311 | if (exists $self->{h}{host}) { |
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312 | return $self->{h}{host}; |
|
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313 | } else { |
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314 | return (($self->server_address)[0]); |
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315 | } |
|
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316 | } |
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317 | |
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318 | sub server_hostport { |
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319 | my $self = shift; |
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320 | my ($host, $port); |
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321 | if (exists $self->{h}{host}) { |
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322 | ($host, $port) = ($self->{h}{host}, $self->{server_port}); |
|
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323 | } else { |
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324 | ($host, $port) = $self->server_address; |
|
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325 | } |
|
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326 | $port = $port == 80 ? "" : ":$port"; |
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327 | $host.$port; |
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328 | } |
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329 | |
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330 | sub _cgi { |
355 | sub _cgi { |
331 | my $self = shift; |
356 | my $self = shift; |
332 | my $path = shift; |
357 | my $path = shift; |
333 | my $fh; |
358 | my $fh; |
334 | |
359 | |
335 | # no two-way xxx supported |
360 | # no two-way xxx supported |
336 | if (0 == fork) { |
361 | if (0 == fork) { |
337 | open STDOUT, ">&".fileno($self->{fh}); |
362 | open STDOUT, ">&".fileno($self->{fh}); |
338 | if (chdir $::DOCROOT) { |
363 | if (chdir $::DOCROOT) { |
339 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
364 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
340 | $ENV{HTTP_HOST} = $self->server_host; |
365 | $ENV{HTTP_HOST} = $self->{server_name}; |
341 | $ENV{HTTP_PORT} = $self->{server_host}; |
366 | $ENV{HTTP_PORT} = $self->{server_port}; |
342 | $ENV{SCRIPT_NAME} = $self->{name}; |
367 | $ENV{SCRIPT_NAME} = $self->{name}; |
343 | exec $path; |
368 | exec $path; |
344 | } |
369 | } |
345 | Coro::State::_exit(0); |
370 | Coro::State::_exit(0); |
346 | } else { |
371 | } else { |
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372 | die; |
347 | } |
373 | } |
|
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374 | } |
|
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375 | |
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376 | sub server_hostport { |
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377 | $_[0]{server_port} == 80 |
|
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378 | ? $_[0]{server_name} |
|
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379 | : "$_[0]{server_name}:$_[0]{server_port}"; |
348 | } |
380 | } |
349 | |
381 | |
350 | sub respond { |
382 | sub respond { |
351 | my $self = shift; |
383 | my $self = shift; |
352 | my $path = $self->{path}; |
384 | my $path = $self->{path}; |
… | |
… | |
362 | |
394 | |
363 | if (-d _ && -r _) { |
395 | if (-d _ && -r _) { |
364 | # directory |
396 | # directory |
365 | if ($path !~ /\/$/) { |
397 | if ($path !~ /\/$/) { |
366 | # create a redirect to get the trailing "/" |
398 | # create a redirect to get the trailing "/" |
367 | my $host = $self->server_hostport; |
399 | # we don't try to avoid the :80 |
368 | $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); |
400 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
369 | } else { |
401 | } else { |
370 | $ims < $self->{stat}[9] |
402 | $ims < $self->{stat}[9] |
371 | or $self->err(304, "not modified"); |
403 | or $self->err(304, "not modified"); |
372 | |
404 | |
373 | if ($self->{method} eq "GET") { |
|
|
374 | if (-r "$path/index.html") { |
405 | if (-r "$path/index.html") { |
375 | $self->{path} .= "/index.html"; |
406 | $self->{path} .= "/index.html"; |
376 | $self->handle_file; |
407 | $self->handle_file; |
377 | } else { |
408 | } else { |
378 | $self->handle_dir; |
409 | $self->handle_dir; |
379 | } |
|
|
380 | } |
410 | } |
381 | } |
411 | } |
382 | } elsif (-f _ && -r _) { |
412 | } elsif (-f _ && -r _) { |
383 | -x _ and $self->err(403, "forbidden"); |
413 | -x _ and $self->err(403, "forbidden"); |
384 | $self->handle_file; |
414 | $self->handle_file; |
… | |
… | |
399 | $idx); |
429 | $idx); |
400 | } |
430 | } |
401 | |
431 | |
402 | sub handle_file { |
432 | sub handle_file { |
403 | my $self = shift; |
433 | my $self = shift; |
404 | my $length = -s _; |
434 | my $length = $self->{stat}[7]; |
|
|
435 | my $queue = $::transfers[$length >= $::TRANSFER_SMALL]; |
405 | my $hdr = { |
436 | my $hdr = { |
406 | "Last-Modified" => time2str ((stat _)[9]), |
437 | "Last-Modified" => time2str ((stat _)[9]), |
407 | }; |
438 | }; |
408 | |
439 | |
409 | my @code = (200, "ok"); |
440 | my @code = (200, "ok"); |
… | |
… | |
417 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
448 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
418 | } else { |
449 | } else { |
419 | ($l, $h) = (0, $length - 1); |
450 | ($l, $h) = (0, $length - 1); |
420 | goto ignore; |
451 | goto ignore; |
421 | } |
452 | } |
422 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; |
453 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
423 | } |
454 | } |
424 | $hdr->{"Content-Range"} = "bytes */$length"; |
455 | $hdr->{"Content-Range"} = "bytes */$length"; |
|
|
456 | $hdr->{"Content-Length"} = $length; |
425 | $self->err(416, "not satisfiable", $hdr); |
457 | $self->err(416, "not satisfiable", $hdr, ""); |
426 | |
458 | |
427 | satisfiable: |
459 | satisfiable: |
428 | # check for segmented downloads |
460 | # check for segmented downloads |
429 | if ($l && $::NO_SEGMENTED) { |
461 | if ($l && $::NO_SEGMENTED) { |
|
|
462 | my $delay = 180; |
430 | if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { |
463 | while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { |
|
|
464 | if ($delay <= 0) { |
|
|
465 | $self->err_segmented_download; |
|
|
466 | } else { |
431 | Coro::Event::do_timer(after => 15); |
467 | Coro::Event::do_timer(after => 3); $delay -= 3; |
432 | |
468 | } |
433 | $self->err(400, "segmented downloads are not allowed"); |
|
|
434 | } |
469 | } |
435 | } |
470 | } |
436 | |
471 | |
437 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
472 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
438 | @code = (206, "partial content"); |
473 | @code = (206, "partial content"); |
… | |
… | |
448 | $hdr->{"Content-Length"} = $length; |
483 | $hdr->{"Content-Length"} = $length; |
449 | |
484 | |
450 | $self->response(@code, $hdr, ""); |
485 | $self->response(@code, $hdr, ""); |
451 | |
486 | |
452 | if ($self->{method} eq "GET") { |
487 | if ($self->{method} eq "GET") { |
|
|
488 | $self->{time} = $::NOW; |
|
|
489 | |
|
|
490 | my $fudge = $queue->[0]->waiters; |
|
|
491 | $fudge = $fudge ? ($fudge+1)/$fudge : 1; |
|
|
492 | |
|
|
493 | $queue->[1] *= $fudge; |
|
|
494 | my $transfer = $queue->[0]->guard; |
|
|
495 | |
|
|
496 | if ($fudge != 1) { |
|
|
497 | $queue->[1] /= $fudge; |
|
|
498 | $queue->[1] = $queue->[1] * $::wait_factor |
|
|
499 | + ($::NOW - $self->{time}) * (1 - $::wait_factor); |
|
|
500 | } |
|
|
501 | $self->{time} = $::NOW; |
|
|
502 | |
|
|
503 | $self->{fh}->writable or return; |
|
|
504 | |
453 | my ($fh, $buf, $r); |
505 | my ($fh, $buf, $r); |
454 | my $current = $Coro::current; |
506 | my $current = $Coro::current; |
455 | open $fh, "<", $self->{path} |
507 | open $fh, "<", $self->{path} |
456 | or die "$self->{path}: late open failure ($!)"; |
508 | or die "$self->{path}: late open failure ($!)"; |
457 | |
509 | |
458 | $h -= $l - 1; |
510 | $h -= $l - 1; |
459 | |
511 | |
|
|
512 | if (0) { |
|
|
513 | if ($l) { |
|
|
514 | sysseek $fh, $l, 0; |
|
|
515 | } |
|
|
516 | } |
|
|
517 | |
460 | while ($h > 0) { |
518 | while ($h > 0) { |
|
|
519 | if (0) { |
|
|
520 | sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h |
|
|
521 | or last; |
|
|
522 | } else { |
|
|
523 | undef $buf; |
|
|
524 | $aio_requests->down; |
461 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
525 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
462 | $buf, 0, sub { |
526 | $buf, 0, sub { |
463 | $r = $_[0]; |
527 | $r = $_[0]; |
464 | $current->ready; |
528 | $current->ready; |
465 | }); |
529 | }); |
466 | &Coro::schedule; |
530 | &Coro::schedule; |
|
|
531 | $aio_requests->up; |
467 | last unless $r; |
532 | last unless $r; |
|
|
533 | } |
468 | my $w = $self->{fh}->syswrite($buf) |
534 | my $w = $self->{fh}->syswrite($buf) |
469 | or last; |
535 | or last; |
470 | $::written += $w; |
536 | $::written += $w; |
471 | $self->{written} += $w; |
537 | $self->{written} += $w; |
472 | $l += $r; |
538 | $l += $r; |
473 | } |
539 | } |
474 | } |
|
|
475 | |
540 | |
476 | close $fh; |
541 | close $fh; |
|
|
542 | } |
477 | } |
543 | } |
478 | |
544 | |
479 | 1; |
545 | 1; |