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/cvs/cvsroot/Coro/myhttpd/httpd.pl
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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.3 by root, Fri Aug 10 02:28:28 2001 UTC vs.
Revision 1.35 by root, Thu Aug 30 12:35:28 2001 UTC

1use Coro; 1use Coro;
2use Coro::Semaphore; 2use Coro::Semaphore;
3use Coro::Event; 3use Coro::Event;
4use Coro::Socket; 4use Coro::Socket;
5 5
6use HTTP::Date;
7
6no utf8; 8no utf8;
7use bytes; 9use 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
13my $port = new Coro::Socket
14 LocalAddr => $SERVER_HOST,
15 LocalPort => $SERVER_PORT,
16 ReuseAddr => 1,
17 Listen => 1,
18 or die "unable to start server";
19
20$SIG{PIPE} = 'IGNORE'; 15$SIG{PIPE} = 'IGNORE';
21 16
17our $accesslog;
18
19if ($ACCESS_LOG) {
20 use IO::Handle;
21 open $accesslog, ">>$ACCESS_LOG"
22 or die "$ACCESS_LOG: $!";
23 $accesslog->autoflush(1);
24}
25
22sub slog { 26sub slog {
23 my $level = shift; 27 my $level = shift;
24 my $format = shift; 28 my $format = shift;
25 printf "---: $format\n", @_; 29 printf "---: $format\n", @_;
26} 30}
27 31
28my $connections = new Coro::Semaphore $MAX_CONNECTS; 32our $connections = new Coro::Semaphore $MAX_CONNECTS || 250;
29 33
30my @fh; 34our $wait_factor = 0.95;
35
36our @transfers = (
37 [(new Coro::Semaphore $MAX_TRANSFERS_SMALL || 50), 1],
38 [(new Coro::Semaphore $MAX_TRANSFERS_LARGE || 50), 1],
39);
40
41my @newcons;
31my @pool; 42my @pool;
32 43
33# one "execution thread" 44# one "execution thread"
34sub handler { 45sub handler {
35 while () { 46 while () {
36 my $fh = pop @fh; 47 my $new = pop @newcons;
37 if ($fh) { 48 if ($new) {
38 eval { 49 eval {
39 conn->new($fh)->handle; 50 conn->new(@$new)->handle;
40 }; 51 };
41 close $fh;
42 slog 1, "$@" if $@ && !ref $@; 52 slog 1, "$@" if $@ && !ref $@;
43 $connections->up; 53 $connections->up;
44 } else { 54 } else {
45 last if @pool >= $MAX_POOL; 55 last if @pool >= $MAX_POOL;
46 push @pool, $Coro::current; 56 push @pool, $Coro::current;
47 schedule; 57 schedule;
48 } 58 }
49 } 59 }
50} 60}
51 61
62my $http_port = new Coro::Socket
63 LocalAddr => $SERVER_HOST,
64 LocalPort => $SERVER_PORT,
65 ReuseAddr => 1,
66 Listen => 50,
67 or die "unable to start server";
68
69push @listen_sockets, $http_port;
70
71our $NOW;
72our $HTTP_NOW;
73
74Event->timer(interval => 1, hard => 1, cb => sub {
75 $NOW = time;
76 $HTTP_NOW = time2str $NOW;
77})->now;
78
52# the "main thread" 79# the "main thread"
53async { 80async {
54 slog 1, "accepting connections"; 81 slog 1, "accepting connections";
55 while () { 82 while () {
56 $connections->down; 83 $connections->down;
57 push @fh, $port->accept; 84 push @newcons, [$http_port->accept];
58 #slog 3, "accepted @$connections ".scalar(@pool); 85 #slog 3, "accepted @$connections ".scalar(@pool);
59 $::NOW = time;
60 if (@pool) { 86 if (@pool) {
61 (pop @pool)->ready; 87 (pop @pool)->ready;
62 } else { 88 } else {
63 async \&handler; 89 async \&handler;
64 } 90 }
65 91
66 } 92 }
67}; 93};
68 94
69loop;
70print "ende\n";#d#
71
72package conn; 95package conn;
73 96
74use Socket; 97use Socket;
75use HTTP::Date; 98use HTTP::Date;
76use Convert::Scalar 'weaken'; 99use Convert::Scalar 'weaken';
100use Linux::AIO;
77 101
102Linux::AIO::min_parallel $::AIO_PARALLEL;
103
104my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4;
105
106Event->io(fd => Linux::AIO::poll_fileno,
107 poll => 'r', async => 1,
108 cb => \&Linux::AIO::poll_cb);
109
78our %conn; # $conn{ip}{fh} => connobj 110our %conn; # $conn{ip}{self} => connobj
111our %uri; # $uri{ip}{uri}{self}
79our %blocked; 112our %blocked;
113our %mimetype;
114
115sub read_mimetypes {
116 local *M;
117 if (open M, "<mime_types") {
118 while (<M>) {
119 if (/^([^#]\S+)\t+(\S+)$/) {
120 $mimetype{lc $1} = $2;
121 }
122 }
123 } else {
124 print "cannot open mime_types\n";
125 }
126}
127
128read_mimetypes;
80 129
81sub new { 130sub new {
82 my $class = shift; 131 my $class = shift;
132 my $peername = shift;
83 my $fh = shift; 133 my $fh = shift;
84 my $self = bless { fh => $fh }, $class; 134 my $self = bless { fh => $fh }, $class;
85 my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername 135 my (undef, $iaddr) = unpack_sockaddr_in $peername
86 or $self->err(500, "unable to get peername"); 136 or $self->err(500, "unable to decode peername");
137
87 $self->{remote_addr} = inet_ntoa $iaddr; 138 $self->{remote_addr} = inet_ntoa $iaddr;
139 $self->{time} = $::NOW;
88 140
89 # enter ourselves into various lists 141 # enter ourselves into various lists
90 weaken ($conn{$self->{remote_addr}}{$self*1} = $self); 142 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
91 143
92 print "$self->{remote_addr}: ".($self*1)." > ".%{$conn{$self->{remote_addr}}},"\n"; 144 $::conns++;
145
93 $self; 146 $self;
94} 147}
95 148
96sub DESTROY { 149sub DESTROY {
97 my $self = shift; 150 my $self = shift;
151
152 $::conns--;
153
154 $self->eoconn;
98 delete $conn{$self->{remote_addr}}{$self*1}; 155 delete $conn{$self->{remote_addr}}{$self*1};
156}
157
158# end of connection
159sub eoconn {
160 my $self = shift;
99 delete $uri{$self->{uri}}{$self*1}; 161 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
100} 162}
101 163
102sub slog { 164sub slog {
103 main::slog(@_); 165 my $self = shift;
166 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
104} 167}
105 168
106sub print_response { 169sub response {
107 my ($self, $code, $msg, $hdr, $content) = @_; 170 my ($self, $code, $msg, $hdr, $content) = @_;
108 my $res = "HTTP/1.0 $code $msg\015\012"; 171 my $res = "HTTP/1.1 $code $msg\015\012";
109 172
110 $hdr->{Date} = time2str $::NOW; # slow? nah. 173 $self->{h}{connection} ||= $hdr->{Connection};
174
175 $res .= "Date: $HTTP_NOW\015\012";
111 176
112 while (my ($h, $v) = each %$hdr) { 177 while (my ($h, $v) = each %$hdr) {
113 $res .= "$h: $v\015\012" 178 $res .= "$h: $v\015\012"
114 } 179 }
115 $res .= "\015\012$content" if defined $content; 180 $res .= "\015\012";
116 181
182 $res .= $content if defined $content and $self->{method} ne "HEAD";
183
117 print STDERR "$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";
118 185
186 print $accesslog $log if $accesslog;
187 print STDERR $log;
188
189 $self->{written} +=
119 print {$self->{fh}} $res; 190 print {$self->{fh}} $res;
120} 191}
121 192
122sub err { 193sub err {
123 my $self = shift; 194 my $self = shift;
124 my ($code, $msg, $hdr, $content) = @_; 195 my ($code, $msg, $hdr, $content) = @_;
125 196
126 unless (defined $content) { 197 unless (defined $content) {
127 $content = "$code $msg"; 198 $content = "$code $msg\n";
128 $hdr->{"Content-Type"} = "text/plain"; 199 $hdr->{"Content-Type"} = "text/plain";
129 $hdr->{"Content-Length"} = length $content; 200 $hdr->{"Content-Length"} = length $content;
130 } 201 }
202 $hdr->{"Connection"} = "close";
131 203
132 $self->slog($msg) if $code;
133
134 $self->print_response($code, $msg, $hdr, $content); 204 $self->response($code, $msg, $hdr, $content);
135 205
136 die bless {}, err::; 206 die bless {}, err::;
137} 207}
138 208
139sub err_blocked {
140 my $self = shift;
141 my $ip = $self->{remote_addr};
142 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
143 $self->err(403, "too many connections",
144 { "Retry-After" => $::BLOCKTIME },
145 <<EOF);
146You have been blocked because you opened too many connections. You
147may retry at $time. Until then,
148every new access will renew the block.
149EOF
150}
151
152sub handle { 209sub handle {
153 my $self = shift; 210 my $self = shift;
154 my $fh = $self->{fh}; 211 my $fh = $self->{fh};
155 212
213 my $host;
214
215 $fh->timeout($::REQ_TIMEOUT);
156 #while() { 216 while() {
217 $self->{reqs}++;
218
219 # read request and parse first line
220 my $req = $fh->readline("\015\012\015\012");
221
222 unless (defined $req) {
223 if (exists $self->{version}) {
224 last;
225 } else {
226 $self->err(408, "request timeout");
227 }
228 }
229
157 $self->{h} = {}; 230 $self->{h} = {};
158 231
159 # read request and parse first line
160 $fh->timeout($::REQ_TIMEOUT);
161 my $req = $fh->readline("\015\012\015\012");
162 $fh->timeout($::RES_TIMEOUT); 232 $fh->timeout($::RES_TIMEOUT);
163
164 defined $req or
165 $self->err(408, "request timeout");
166
167 my $ip = $self->{remote_addr}; 233 my $ip = $self->{remote_addr};
168 234
169 if ($blocked{$ip}) { 235 if ($blocked{$ip}) {
170 $self->err_blocked($blocked{$ip}) 236 $self->err_blocked($blocked{$ip})
171 if $blocked{$ip} > $::NOW; 237 if $blocked{$ip} > $::NOW;
172 238
173 delete $blocked{$ip}; 239 delete $blocked{$ip};
174 } 240 }
175 241
176 if (%{$conn{$ip}} > $::MAX_CONN_IP) { 242 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
243 my $delay = 120;
244 while (%{$conn{$ip}} > $::MAX_CONN_IP) {
245 if ($delay <= 0) {
177 $self->slog("blocked ip $ip"); 246 $self->slog(2, "blocked ip $ip");
178 $self->err_blocked; 247 $self->err_blocked;
248 } else {
249 Coro::Event::do_timer(after => 3);
250 $delay -= 3;
251 }
252 }
179 } 253 }
180 254
181 $req =~ /^(?:\015\012)? 255 $req =~ /^(?:\015\012)?
182 (GET|HEAD) \040+ 256 (GET|HEAD) \040+
183 ([^\040]+) \040+ 257 ([^\040]+) \040+
184 HTTP\/([0-9]+\.[0-9]+) 258 HTTP\/([0-9]+\.[0-9]+)
185 \015\012/gx 259 \015\012/gx
186 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 260 or $self->err(405, "method not allowed", { Allow => "GET,HEAD" });
187
188 $2 ne "1.0"
189 or $self->err(506, "http protocol version not supported");
190 261
191 $self->{method} = $1; 262 $self->{method} = $1;
192 $self->{uri} = $2; 263 $self->{uri} = $2;
264 $self->{version} = $3;
265
266 $3 =~ /^1\./
267 or $self->err(506, "http protocol version $3 not supported");
193 268
194 # parse headers 269 # parse headers
195 { 270 {
196 my (%hdr, $h, $v); 271 my (%hdr, $h, $v);
197 272
… …
208 283
209 $self->{h}{$h} = substr $v, 1 284 $self->{h}{$h} = substr $v, 1
210 while ($h, $v) = each %hdr; 285 while ($h, $v) = each %hdr;
211 } 286 }
212 287
288 # find out server name and port
289 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
290 $host = $1;
291 } else {
292 $host = $self->{h}{host};
293 }
294
295 if (defined $host) {
213 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 296 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
297 } else {
298 ($self->{server_port}, $host)
299 = unpack_sockaddr_in $self->{fh}->getsockname
300 or $self->err(500, "unable to get socket name");
301 $host = inet_ntoa $host;
302 }
214 303
304 $self->{server_name} = $host;
305
306 # remote id should be unique per user
307 $self->{remote_id} = $self->{remote_addr};
308
309 if (exists $self->{h}{"client-ip"}) {
310 $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]";
311 } elsif (exists $self->{h}{"x-forwarded-for"}) {
312 $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]";
313 }
314
215 weaken ($uri{$self->{uri}}{$self*1} = $self); 315 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
216 316
317 eval {
217 $self->map_uri; 318 $self->map_uri;
218
219 Coro::Event::do_timer(after => 5);
220
221 $self->respond; 319 $self->respond;
320 };
321
322 $self->eoconn;
323
324 die if $@ && !ref $@;
325
326 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
327
328 $fh->timeout($::PER_TIMEOUT);
222 #} 329 }
223} 330}
224 331
225# uri => path mapping 332# uri => path mapping
226sub map_uri { 333sub map_uri {
227 my $self = shift; 334 my $self = shift;
228 my $host = $self->{h}{host} || "default"; 335 my $host = $self->{server_name};
229 my $uri = $self->{uri}; 336 my $uri = $self->{uri};
230 337
231 # some massaging, also makes it more secure 338 # some massaging, also makes it more secure
232 $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;
233 $uri =~ s%//+%/%g; 340 $uri =~ s%//+%/%g;
… …
239 346
240 $self->{name} = $uri; 347 $self->{name} = $uri;
241 348
242 # now do the path mapping 349 # now do the path mapping
243 $self->{path} = "$::DOCROOT/$host$uri"; 350 $self->{path} = "$::DOCROOT/$host$uri";
244}
245 351
246sub server_address { 352 $self->access_check;
247 my $self = shift;
248 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
249 or $self->err(500, "unable to get socket name");
250 ((inet_ntoa $iaddr), $port);
251}
252
253sub server_host {
254 my $self = shift;
255 if (exists $self->{h}{host}) {
256 return $self->{h}{host};
257 } else {
258 return (($self->server_address)[0]);
259 }
260}
261
262sub server_hostport {
263 my $self = shift;
264 my ($host, $port);
265 if (exists $self->{h}{host}) {
266 ($host, $port) = ($self->{h}{host}, $self->{server_port});
267 } else {
268 ($host, $port) = $self->server_address;
269 }
270 $port = $port == 80 ? "" : ":$port";
271 $host.$port;
272} 353}
273 354
274sub _cgi { 355sub _cgi {
275 my $self = shift; 356 my $self = shift;
276 my $path = shift; 357 my $path = shift;
… …
279 # no two-way xxx supported 360 # no two-way xxx supported
280 if (0 == fork) { 361 if (0 == fork) {
281 open STDOUT, ">&".fileno($self->{fh}); 362 open STDOUT, ">&".fileno($self->{fh});
282 if (chdir $::DOCROOT) { 363 if (chdir $::DOCROOT) {
283 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 364 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
284 $ENV{HTTP_HOST} = $self->server_host; 365 $ENV{HTTP_HOST} = $self->{server_name};
285 $ENV{HTTP_PORT} = $self->{server_host}; 366 $ENV{HTTP_PORT} = $self->{server_port};
286 $ENV{SCRIPT_NAME} = $self->{name}; 367 $ENV{SCRIPT_NAME} = $self->{name};
287 exec $::INDEXPROG; 368 exec $path;
288 } 369 }
289 Coro::State::_exit(0); 370 Coro::State::_exit(0);
290 } else { 371 } else {
372 die;
291 } 373 }
374}
375
376sub server_hostport {
377 $_[0]{server_port} == 80
378 ? $_[0]{server_name}
379 : "$_[0]{server_name}:$_[0]{server_port}";
292} 380}
293 381
294sub respond { 382sub respond {
295 my $self = shift; 383 my $self = shift;
296 my $path = $self->{path}; 384 my $path = $self->{path};
297 385
298 stat $path 386 stat $path
299 or $self->err(404, "not found"); 387 or $self->err(404, "not found");
388
389 $self->{stat} = [stat _];
300 390
301 # idiotic netscape sends idiotic headers AGAIN 391 # idiotic netscape sends idiotic headers AGAIN
302 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 392 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
303 ? str2time $1 : 0; 393 ? str2time $1 : 0;
304 394
305 if (-d _ && -r _) { 395 if (-d _ && -r _) {
306 # directory 396 # directory
307 if ($path !~ /\/$/) { 397 if ($path !~ /\/$/) {
308 # create a redirect to get the trailing "/" 398 # create a redirect to get the trailing "/"
309 my $host = $self->server_hostport; 399 # we don't try to avoid the :80
310 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 400 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
311 } else { 401 } else {
312 $ims < (stat _)[9] 402 $ims < $self->{stat}[9]
313 or $self->err(304, "not modified"); 403 or $self->err(304, "not modified");
314 404
315 if ($self->{method} eq "GET") {
316 if (-r "$path/index.html") { 405 if (-r "$path/index.html") {
317 $self->{path} .= "/index.html"; 406 $self->{path} .= "/index.html";
318 $self->handle_file; 407 $self->handle_file;
319 } else { 408 } else {
320 $self->handle_dir; 409 $self->handle_dir;
321 }
322 } 410 }
323 } 411 }
324 } elsif (-f _ && -r _) { 412 } elsif (-f _ && -r _) {
325 -x _ and $self->err(403, "forbidden"); 413 -x _ and $self->err(403, "forbidden");
326 $self->handle_file; 414 $self->handle_file;
… …
329 } 417 }
330} 418}
331 419
332sub handle_dir { 420sub handle_dir {
333 my $self = shift; 421 my $self = shift;
334 $self->_cgi($::INDEXPROG); 422 my $idx = $self->diridx;
423
424 $self->response(200, "ok",
425 {
426 "Content-Type" => "text/html",
427 "Content-Length" => length $idx,
428 },
429 $idx);
335} 430}
336 431
337sub handle_file { 432sub handle_file {
338 my $self = shift; 433 my $self = shift;
339 my $length = -s _; 434 my $length = $self->{stat}[7];
435 my $queue = $::transfers[$length >= $::TRANSFER_SMALL];
340 my $hdr = { 436 my $hdr = {
341 "Last-Modified" => time2str ((stat _)[9]), 437 "Last-Modified" => time2str ((stat _)[9]),
342 }; 438 };
343 439
344 my @code = (200, "ok"); 440 my @code = (200, "ok");
… …
352 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 448 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
353 } else { 449 } else {
354 ($l, $h) = (0, $length - 1); 450 ($l, $h) = (0, $length - 1);
355 goto ignore; 451 goto ignore;
356 } 452 }
357 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 453 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
358 } 454 }
359 $hdr->{"Content-Range"} = "bytes */$length"; 455 $hdr->{"Content-Range"} = "bytes */$length";
456 $hdr->{"Content-Length"} = $length;
360 $self->err(416, "not satisfiable", $hdr); 457 $self->err(416, "not satisfiable", $hdr, "");
361 458
362satisfiable: 459satisfiable:
460 # check for segmented downloads
461 if ($l && $::NO_SEGMENTED) {
462 my $delay = 180;
463 while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
464 if ($delay <= 0) {
465 $self->err_segmented_download;
466 } else {
467 Coro::Event::do_timer(after => 3); $delay -= 3;
468 }
469 }
470 }
471
363 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 472 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
364 @code = (206, "partial content"); 473 @code = (206, "partial content");
365 $length = $h - $l + 1; 474 $length = $h - $l + 1;
366 475
367ignore: 476ignore:
368 } else { 477 } else {
369 ($l, $h) = (0, $length - 1); 478 ($l, $h) = (0, $length - 1);
370 } 479 }
371 480
372 if ($self->{path} =~ /\.html$/) { 481 $self->{path} =~ /\.([^.]+)$/;
373 $hdr->{"Content-Type"} = "text/html";
374 } else {
375 $hdr->{"Content-Type"} = "application/octet-stream"; 482 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
376 }
377
378 $hdr->{"Content-Length"} = $length; 483 $hdr->{"Content-Length"} = $length;
379 484
380 $self->print_response(@code, $hdr, ""); 485 $self->response(@code, $hdr, "");
381 486
382 if ($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 $self->{fh}->writable or return;
504
383 my ($fh, $buf); 505 my ($fh, $buf, $r);
506 my $current = $Coro::current;
384 open $fh, "<", $self->{path} 507 open $fh, "<", $self->{path}
385 or die "$self->{path}: late open failure ($!)"; 508 or die "$self->{path}: late open failure ($!)";
386 509
387 if ($l) {
388 sysseek $fh, $l, 0
389 or die "$self->{path}: cannot seek to $l ($!)";
390 }
391
392 $h -= $l - 1; 510 $h -= $l - 1;
393 511
512 if (0) {
513 if ($l) {
514 sysseek $fh, $l, 0;
515 }
516 }
517
394 while ($h > 0) { 518 while ($h > 0) {
395 $h -= sysread $fh, $buf, $h > 4096 ? 4096 : $h; 519 if (0) {
396 print {$self->{fh}} $buf 520 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
521 or last;
522 } else {
523 undef $buf;
524 $aio_requests->down;
525 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
526 $buf, 0, sub {
527 $r = $_[0];
528 $current->ready;
529 });
530 &Coro::schedule;
531 $aio_requests->up;
532 last unless $r;
533 }
534 my $w = $self->{fh}->syswrite($buf)
397 or last; 535 or last;
536 $::written += $w;
537 $self->{written} += $w;
538 $l += $r;
398 } 539 }
399 }
400 540
401 close $fh; 541 close $fh;
542 }
402} 543}
403 544
4041; 5451;

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