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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 1.36 by root, Sun Sep 2 00:54:00 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 $::conns++;
90 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
91 142
92 print "$self->{remote_addr}: ".($self*1)." > ".%{$conn{$self->{remote_addr}}},"\n";
93 $self; 143 $self;
94} 144}
95 145
96sub DESTROY { 146sub DESTROY {
97 my $self = shift; 147 my $self = shift;
148
149 $::conns--;
150
151 $self->eoconn;
152}
153
154# end of connection
155sub eoconn {
156 my $self = shift;
157
158 # clean up hints
98 delete $conn{$self->{remote_addr}}{$self*1}; 159 delete $conn{$self->{remote_id}}{$self*1};
99 delete $uri{$self->{uri}}{$self*1}; 160 delete $uri{$self->{remote_id}}{$self->{uri}}{$self*1};
100} 161}
101 162
102sub slog { 163sub slog {
103 main::slog(@_); 164 my $self = shift;
165 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
104} 166}
105 167
106sub print_response { 168sub response {
107 my ($self, $code, $msg, $hdr, $content) = @_; 169 my ($self, $code, $msg, $hdr, $content) = @_;
108 my $res = "HTTP/1.0 $code $msg\015\012"; 170 my $res = "HTTP/1.1 $code $msg\015\012";
109 171
110 $hdr->{Date} = time2str $::NOW; # slow? nah. 172 $self->{h}{connection} ||= $hdr->{Connection};
173
174 $res .= "Date: $HTTP_NOW\015\012";
111 175
112 while (my ($h, $v) = each %$hdr) { 176 while (my ($h, $v) = each %$hdr) {
113 $res .= "$h: $v\015\012" 177 $res .= "$h: $v\015\012"
114 } 178 }
115 $res .= "\015\012$content" if defined $content; 179 $res .= "\015\012";
116 180
181 $res .= $content if defined $content and $self->{method} ne "HEAD";
182
117 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 183 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";
118 184
185 print $accesslog $log if $accesslog;
186 print STDERR $log;
187
188 $self->{written} +=
119 print {$self->{fh}} $res; 189 print {$self->{fh}} $res;
120} 190}
121 191
122sub err { 192sub err {
123 my $self = shift; 193 my $self = shift;
124 my ($code, $msg, $hdr, $content) = @_; 194 my ($code, $msg, $hdr, $content) = @_;
125 195
126 unless (defined $content) { 196 unless (defined $content) {
127 $content = "$code $msg"; 197 $content = "$code $msg\n";
128 $hdr->{"Content-Type"} = "text/plain"; 198 $hdr->{"Content-Type"} = "text/plain";
129 $hdr->{"Content-Length"} = length $content; 199 $hdr->{"Content-Length"} = length $content;
130 } 200 }
201 $hdr->{"Connection"} = "close";
131 202
132 $self->slog($msg) if $code;
133
134 $self->print_response($code, $msg, $hdr, $content); 203 $self->response($code, $msg, $hdr, $content);
135 204
136 die bless {}, err::; 205 die bless {}, err::;
137} 206}
138 207
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 { 208sub handle {
153 my $self = shift; 209 my $self = shift;
154 my $fh = $self->{fh}; 210 my $fh = $self->{fh};
155 211
212 my $host;
213
214 $fh->timeout($::REQ_TIMEOUT);
156 #while() { 215 while() {
216 $self->{reqs}++;
217
218 # read request and parse first line
219 my $req = $fh->readline("\015\012\015\012");
220
221 unless (defined $req) {
222 if (exists $self->{version}) {
223 last;
224 } else {
225 $self->err(408, "request timeout");
226 }
227 }
228
157 $self->{h} = {}; 229 $self->{h} = {};
158 230
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); 231 $fh->timeout($::RES_TIMEOUT);
163
164 defined $req or
165 $self->err(408, "request timeout");
166
167 my $ip = $self->{remote_addr};
168
169 if ($blocked{$ip}) {
170 $self->err_blocked($blocked{$ip})
171 if $blocked{$ip} > $::NOW;
172
173 delete $blocked{$ip};
174 }
175
176 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
177 $self->slog("blocked ip $ip");
178 $self->err_blocked;
179 }
180 232
181 $req =~ /^(?:\015\012)? 233 $req =~ /^(?:\015\012)?
182 (GET|HEAD) \040+ 234 (GET|HEAD) \040+
183 ([^\040]+) \040+ 235 ([^\040]+) \040+
184 HTTP\/([0-9]+\.[0-9]+) 236 HTTP\/([0-9]+\.[0-9]+)
185 \015\012/gx 237 \015\012/gx
186 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 238 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");
190 239
191 $self->{method} = $1; 240 $self->{method} = $1;
192 $self->{uri} = $2; 241 $self->{uri} = $2;
242 $self->{version} = $3;
243
244 $3 =~ /^1\./
245 or $self->err(506, "http protocol version $3 not supported");
193 246
194 # parse headers 247 # parse headers
195 { 248 {
196 my (%hdr, $h, $v); 249 my (%hdr, $h, $v);
197 250
… …
208 261
209 $self->{h}{$h} = substr $v, 1 262 $self->{h}{$h} = substr $v, 1
210 while ($h, $v) = each %hdr; 263 while ($h, $v) = each %hdr;
211 } 264 }
212 265
266 # remote id should be unique per user
267 my $id = $self->{remote_addr};
268
269 if (exists $self->{h}{"client-ip"}) {
270 $id .= "[".$self->{h}{"client-ip"}."]";
271 } elsif (exists $self->{h}{"x-forwarded-for"}) {
272 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
273 }
274
275 $self->{remote_id} = $id;
276
277 if ($blocked{$id}) {
278 $self->err_blocked($blocked{$id})
279 if $blocked{$id} > $::NOW;
280
281 delete $blocked{$id};
282 }
283
284 if (%{$conn{$id}} >= $::MAX_CONN_IP) {
285 my $delay = $::PER_TIMEOUT + 15;
286 while (%{$conn{$id}} >= $::MAX_CONN_IP) {
287 if ($delay <= 0) {
288 $self->slog(2, "blocked ip $id");
289 $self->err_blocked;
290 } else {
291 Coro::Event::do_timer(after => 4); $delay -= 4;
292 }
293 }
294 }
295
296 # find out server name and port
297 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
298 $host = $1;
299 } else {
300 $host = $self->{h}{host};
301 }
302
303 if (defined $host) {
213 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 304 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
305 } else {
306 ($self->{server_port}, $host)
307 = unpack_sockaddr_in $self->{fh}->getsockname
308 or $self->err(500, "unable to get socket name");
309 $host = inet_ntoa $host;
310 }
214 311
312 $self->{server_name} = $host;
313
314 # enter ourselves into various lists
315 weaken ($conn{$id}{$self*1} = $self);
215 weaken ($uri{$self->{uri}}{$self*1} = $self); 316 weaken ($uri{$id}{$self->{uri}}{$self*1} = $self);
216 317
318 eval {
217 $self->map_uri; 319 $self->map_uri;
218
219 Coro::Event::do_timer(after => 5);
220
221 $self->respond; 320 $self->respond;
321 };
322
323 $self->eoconn;
324
325 die if $@ && !ref $@;
326
327 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
328
329 $fh->timeout($::PER_TIMEOUT);
222 #} 330 }
223} 331}
224 332
225# uri => path mapping 333# uri => path mapping
226sub map_uri { 334sub map_uri {
227 my $self = shift; 335 my $self = shift;
228 my $host = $self->{h}{host} || "default"; 336 my $host = $self->{server_name};
229 my $uri = $self->{uri}; 337 my $uri = $self->{uri};
230 338
231 # some massaging, also makes it more secure 339 # some massaging, also makes it more secure
232 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 340 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
233 $uri =~ s%//+%/%g; 341 $uri =~ s%//+%/%g;
… …
239 347
240 $self->{name} = $uri; 348 $self->{name} = $uri;
241 349
242 # now do the path mapping 350 # now do the path mapping
243 $self->{path} = "$::DOCROOT/$host$uri"; 351 $self->{path} = "$::DOCROOT/$host$uri";
244}
245 352
246sub server_address { 353 $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} 354}
273 355
274sub _cgi { 356sub _cgi {
275 my $self = shift; 357 my $self = shift;
276 my $path = shift; 358 my $path = shift;
… …
279 # no two-way xxx supported 361 # no two-way xxx supported
280 if (0 == fork) { 362 if (0 == fork) {
281 open STDOUT, ">&".fileno($self->{fh}); 363 open STDOUT, ">&".fileno($self->{fh});
282 if (chdir $::DOCROOT) { 364 if (chdir $::DOCROOT) {
283 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 365 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
284 $ENV{HTTP_HOST} = $self->server_host; 366 $ENV{HTTP_HOST} = $self->{server_name};
285 $ENV{HTTP_PORT} = $self->{server_host}; 367 $ENV{HTTP_PORT} = $self->{server_port};
286 $ENV{SCRIPT_NAME} = $self->{name}; 368 $ENV{SCRIPT_NAME} = $self->{name};
287 exec $::INDEXPROG; 369 exec $path;
288 } 370 }
289 Coro::State::_exit(0); 371 Coro::State::_exit(0);
290 } else { 372 } else {
373 die;
291 } 374 }
375}
376
377sub server_hostport {
378 $_[0]{server_port} == 80
379 ? $_[0]{server_name}
380 : "$_[0]{server_name}:$_[0]{server_port}";
292} 381}
293 382
294sub respond { 383sub respond {
295 my $self = shift; 384 my $self = shift;
296 my $path = $self->{path}; 385 my $path = $self->{path};
297 386
298 stat $path 387 stat $path
299 or $self->err(404, "not found"); 388 or $self->err(404, "not found");
389
390 $self->{stat} = [stat _];
300 391
301 # idiotic netscape sends idiotic headers AGAIN 392 # idiotic netscape sends idiotic headers AGAIN
302 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 393 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
303 ? str2time $1 : 0; 394 ? str2time $1 : 0;
304 395
305 if (-d _ && -r _) { 396 if (-d _ && -r _) {
306 # directory 397 # directory
307 if ($path !~ /\/$/) { 398 if ($path !~ /\/$/) {
308 # create a redirect to get the trailing "/" 399 # create a redirect to get the trailing "/"
309 my $host = $self->server_hostport; 400 # we don't try to avoid the :80
310 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 401 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
311 } else { 402 } else {
312 $ims < (stat _)[9] 403 $ims < $self->{stat}[9]
313 or $self->err(304, "not modified"); 404 or $self->err(304, "not modified");
314 405
315 if ($self->{method} eq "GET") {
316 if (-r "$path/index.html") { 406 if (-r "$path/index.html") {
317 $self->{path} .= "/index.html"; 407 $self->{path} .= "/index.html";
318 $self->handle_file; 408 $self->handle_file;
319 } else { 409 } else {
320 $self->handle_dir; 410 $self->handle_dir;
321 }
322 } 411 }
323 } 412 }
324 } elsif (-f _ && -r _) { 413 } elsif (-f _ && -r _) {
325 -x _ and $self->err(403, "forbidden"); 414 -x _ and $self->err(403, "forbidden");
326 $self->handle_file; 415 $self->handle_file;
… …
329 } 418 }
330} 419}
331 420
332sub handle_dir { 421sub handle_dir {
333 my $self = shift; 422 my $self = shift;
334 $self->_cgi($::INDEXPROG); 423 my $idx = $self->diridx;
424
425 $self->response(200, "ok",
426 {
427 "Content-Type" => "text/html",
428 "Content-Length" => length $idx,
429 },
430 $idx);
335} 431}
336 432
337sub handle_file { 433sub handle_file {
338 my $self = shift; 434 my $self = shift;
339 my $length = -s _; 435 my $length = $self->{stat}[7];
436 my $queue = $::transfers[$length >= $::TRANSFER_SMALL];
340 my $hdr = { 437 my $hdr = {
341 "Last-Modified" => time2str ((stat _)[9]), 438 "Last-Modified" => time2str ((stat _)[9]),
342 }; 439 };
343 440
344 my @code = (200, "ok"); 441 my @code = (200, "ok");
… …
352 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 449 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
353 } else { 450 } else {
354 ($l, $h) = (0, $length - 1); 451 ($l, $h) = (0, $length - 1);
355 goto ignore; 452 goto ignore;
356 } 453 }
357 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 454 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
358 } 455 }
359 $hdr->{"Content-Range"} = "bytes */$length"; 456 $hdr->{"Content-Range"} = "bytes */$length";
457 $hdr->{"Content-Length"} = $length;
360 $self->err(416, "not satisfiable", $hdr); 458 $self->err(416, "not satisfiable", $hdr, "");
361 459
362satisfiable: 460satisfiable:
461 # check for segmented downloads
462 if ($l && $::NO_SEGMENTED) {
463 my $delay = $::PER_TIMEOUT + 15;
464 while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
465 if ($delay <= 0) {
466 $self->err_segmented_download;
467 } else {
468 Coro::Event::do_timer(after => 4); $delay -= 4;
469 }
470 }
471 }
472
363 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 473 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
364 @code = (206, "partial content"); 474 @code = (206, "partial content");
365 $length = $h - $l + 1; 475 $length = $h - $l + 1;
366 476
367ignore: 477ignore:
368 } else { 478 } else {
369 ($l, $h) = (0, $length - 1); 479 ($l, $h) = (0, $length - 1);
370 } 480 }
371 481
372 if ($self->{path} =~ /\.html$/) { 482 $self->{path} =~ /\.([^.]+)$/;
373 $hdr->{"Content-Type"} = "text/html";
374 } else {
375 $hdr->{"Content-Type"} = "application/octet-stream"; 483 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
376 }
377
378 $hdr->{"Content-Length"} = $length; 484 $hdr->{"Content-Length"} = $length;
379 485
380 $self->print_response(@code, $hdr, ""); 486 $self->response(@code, $hdr, "");
381 487
382 if ($self->{method} eq "GET") { 488 if ($self->{method} eq "GET") {
489 $self->{time} = $::NOW;
490
491 my $fudge = $queue->[0]->waiters;
492 $fudge = $fudge ? ($fudge+1)/$fudge : 1;
493
494 $queue->[1] *= $fudge;
495 my $transfer = $queue->[0]->guard;
496
497 if ($fudge != 1) {
498 $queue->[1] /= $fudge;
499 $queue->[1] = $queue->[1] * $::wait_factor
500 + ($::NOW - $self->{time}) * (1 - $::wait_factor);
501 }
502 $self->{time} = $::NOW;
503
504 $self->{fh}->writable or return;
505
383 my ($fh, $buf); 506 my ($fh, $buf, $r);
507 my $current = $Coro::current;
384 open $fh, "<", $self->{path} 508 open $fh, "<", $self->{path}
385 or die "$self->{path}: late open failure ($!)"; 509 or die "$self->{path}: late open failure ($!)";
386 510
387 if ($l) {
388 sysseek $fh, $l, 0
389 or die "$self->{path}: cannot seek to $l ($!)";
390 }
391
392 $h -= $l - 1; 511 $h -= $l - 1;
393 512
513 if (0) {
514 if ($l) {
515 sysseek $fh, $l, 0;
516 }
517 }
518
394 while ($h > 0) { 519 while ($h > 0) {
395 $h -= sysread $fh, $buf, $h > 4096 ? 4096 : $h; 520 if (0) {
396 print {$self->{fh}} $buf 521 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
522 or last;
523 } else {
524 undef $buf;
525 $aio_requests->down;
526 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
527 $buf, 0, sub {
528 $r = $_[0];
529 $current->ready;
530 });
531 &Coro::schedule;
532 $aio_requests->up;
533 last unless $r;
534 }
535 my $w = $self->{fh}->syswrite($buf)
397 or last; 536 or last;
537 $::written += $w;
538 $self->{written} += $w;
539 $l += $r;
398 } 540 }
399 }
400 541
401 close $fh; 542 close $fh;
543 }
402} 544}
403 545
4041; 5461;

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