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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 1.39 by root, Sun Sep 2 12:23:04 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 $fh = pop @fh; 47 if (@newcons) {
37 if ($fh) {
38 eval { 48 eval {
39 conn->new($fh)->handle; 49 conn->new(@{pop @newcons})->handle;
40 }; 50 };
41 close $fh;
42 slog 1, "$@" if $@ && !ref $@; 51 slog 1, "$@" if $@ && !ref $@;
43 $connections->up; 52 $connections->up;
44 } else { 53 } else {
45 last if @pool >= $MAX_POOL; 54 last if @pool >= $MAX_POOL;
46 push @pool, $Coro::current; 55 push @pool, $Coro::current;
47 schedule; 56 schedule;
48 } 57 }
49 } 58 }
50} 59}
51 60
61my $http_port = new Coro::Socket
62 LocalAddr => $SERVER_HOST,
63 LocalPort => $SERVER_PORT,
64 ReuseAddr => 1,
65 Listen => 50,
66 or die "unable to start server";
67
68push @listen_sockets, $http_port;
69
70our $NOW;
71our $HTTP_NOW;
72
73Event->timer(interval => 1, hard => 1, cb => sub {
74 $NOW = time;
75 $HTTP_NOW = time2str $NOW;
76})->now;
77
52# the "main thread" 78# the "main thread"
53async { 79async {
54 slog 1, "accepting connections"; 80 slog 1, "accepting connections";
55 while () { 81 while () {
56 $connections->down; 82 $connections->down;
57 push @fh, $port->accept; 83 push @newcons, [$http_port->accept];
58 #slog 3, "accepted @$connections ".scalar(@pool); 84 #slog 3, "accepted @$connections ".scalar(@pool);
59 $::NOW = time;
60 if (@pool) { 85 if (@pool) {
61 (pop @pool)->ready; 86 (pop @pool)->ready;
62 } else { 87 } else {
63 async \&handler; 88 async \&handler;
64 } 89 }
65 90
66 } 91 }
67}; 92};
68 93
69loop;
70print "ende\n";#d#
71
72package conn; 94package conn;
73 95
74use Socket; 96use Socket;
75use HTTP::Date; 97use HTTP::Date;
76use Convert::Scalar 'weaken'; 98use Convert::Scalar 'weaken';
99use Linux::AIO;
77 100
101Linux::AIO::min_parallel $::AIO_PARALLEL;
102
103Event->io(fd => Linux::AIO::poll_fileno,
104 poll => 'r', async => 1,
105 cb => \&Linux::AIO::poll_cb);
106
78our %conn; # $conn{ip}{fh} => connobj 107our %conn; # $conn{ip}{self} => connobj
108our %uri; # $uri{ip}{uri}{self}
79our %blocked; 109our %blocked;
110our %mimetype;
111
112sub read_mimetypes {
113 local *M;
114 if (open M, "<mime_types") {
115 while (<M>) {
116 if (/^([^#]\S+)\t+(\S+)$/) {
117 $mimetype{lc $1} = $2;
118 }
119 }
120 } else {
121 print "cannot open mime_types\n";
122 }
123}
124
125read_mimetypes;
80 126
81sub new { 127sub new {
82 my $class = shift; 128 my $class = shift;
129 my $peername = shift;
83 my $fh = shift; 130 my $fh = shift;
84 my $self = bless { fh => $fh }, $class; 131 my $self = bless { fh => $fh }, $class;
85 my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername 132 my (undef, $iaddr) = unpack_sockaddr_in $peername
86 or $self->err(500, "unable to get peername"); 133 or $self->err(500, "unable to decode peername");
134
87 $self->{remote_addr} = inet_ntoa $iaddr; 135 $self->{remote_addr} = inet_ntoa $iaddr;
136 $self->{time} = $::NOW;
88 137
89 # enter ourselves into various lists 138 $::conns++;
90 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
91 139
92 print "$self->{remote_addr}: ".($self*1)." > ".%{$conn{$self->{remote_addr}}},"\n";
93 $self; 140 $self;
94} 141}
95 142
96sub DESTROY { 143sub DESTROY {
97 my $self = shift; 144 my $self = shift;
145 $::conns--;
146 $self->eoconn;
147}
148
149# end of connection
150sub eoconn {
151 my $self = shift;
152
153 # clean up hints
98 delete $conn{$self->{remote_addr}}{$self*1}; 154 delete $conn{$self->{remote_id}}{$self*1};
99 delete $uri{$self->{uri}}{$self*1}; 155 delete $uri{$self->{remote_id}}{$self->{uri}}{$self*1};
100} 156}
101 157
102sub slog { 158sub slog {
103 main::slog(@_); 159 my $self = shift;
160 main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]");
104} 161}
105 162
106sub print_response { 163sub response {
107 my ($self, $code, $msg, $hdr, $content) = @_; 164 my ($self, $code, $msg, $hdr, $content) = @_;
108 my $res = "HTTP/1.0 $code $msg\015\012"; 165 my $res = "HTTP/1.1 $code $msg\015\012";
109 166
110 $hdr->{Date} = time2str $::NOW; # slow? nah. 167 $self->{h}{connection} ||= $hdr->{Connection};
168
169 $res .= "Date: $HTTP_NOW\015\012";
111 170
112 while (my ($h, $v) = each %$hdr) { 171 while (my ($h, $v) = each %$hdr) {
113 $res .= "$h: $v\015\012" 172 $res .= "$h: $v\015\012"
114 } 173 }
115 $res .= "\015\012$content" if defined $content; 174 $res .= "\015\012";
116 175
176 $res .= $content if defined $content and $self->{method} ne "HEAD";
177
117 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# 178 my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";
118 179
180 print $accesslog $log if $accesslog;
181 print STDERR $log;
182
183 $self->{written} +=
119 print {$self->{fh}} $res; 184 print {$self->{fh}} $res;
120} 185}
121 186
122sub err { 187sub err {
123 my $self = shift; 188 my $self = shift;
124 my ($code, $msg, $hdr, $content) = @_; 189 my ($code, $msg, $hdr, $content) = @_;
125 190
126 unless (defined $content) { 191 unless (defined $content) {
127 $content = "$code $msg"; 192 $content = "$code $msg\n";
128 $hdr->{"Content-Type"} = "text/plain"; 193 $hdr->{"Content-Type"} = "text/plain";
129 $hdr->{"Content-Length"} = length $content; 194 $hdr->{"Content-Length"} = length $content;
130 } 195 }
196 $hdr->{"Connection"} = "close";
131 197
132 $self->slog($msg) if $code;
133
134 $self->print_response($code, $msg, $hdr, $content); 198 $self->response($code, $msg, $hdr, $content);
135 199
136 die bless {}, err::; 200 die bless {}, err::;
137} 201}
138 202
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 { 203sub handle {
153 my $self = shift; 204 my $self = shift;
154 my $fh = $self->{fh}; 205 my $fh = $self->{fh};
155 206
207 my $host;
208
209 $fh->timeout($::REQ_TIMEOUT);
156 #while() { 210 while() {
211 $self->{reqs}++;
212
213 # read request and parse first line
214 my $req = $fh->readline("\015\012\015\012");
215
216 unless (defined $req) {
217 if (exists $self->{version}) {
218 last;
219 } else {
220 $self->err(408, "request timeout");
221 }
222 }
223
157 $self->{h} = {}; 224 $self->{h} = {};
158 225
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); 226 $fh->timeout($::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 }
180 227
181 $req =~ /^(?:\015\012)? 228 $req =~ /^(?:\015\012)?
182 (GET|HEAD) \040+ 229 (GET|HEAD) \040+
183 ([^\040]+) \040+ 230 ([^\040]+) \040+
184 HTTP\/([0-9]+\.[0-9]+) 231 HTTP\/([0-9]+\.[0-9]+)
185 \015\012/gx 232 \015\012/gx
186 or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); 233 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");
190 234
191 $self->{method} = $1; 235 $self->{method} = $1;
192 $self->{uri} = $2; 236 $self->{uri} = $2;
237 $self->{version} = $3;
238
239 $3 =~ /^1\./
240 or $self->err(506, "http protocol version $3 not supported");
193 241
194 # parse headers 242 # parse headers
195 { 243 {
196 my (%hdr, $h, $v); 244 my (%hdr, $h, $v);
197 245
… …
208 256
209 $self->{h}{$h} = substr $v, 1 257 $self->{h}{$h} = substr $v, 1
210 while ($h, $v) = each %hdr; 258 while ($h, $v) = each %hdr;
211 } 259 }
212 260
261 # remote id should be unique per user
262 my $id = $self->{remote_addr};
263
264 if (exists $self->{h}{"client-ip"}) {
265 $id .= "[".$self->{h}{"client-ip"}."]";
266 } elsif (exists $self->{h}{"x-forwarded-for"}) {
267 $id .= "[".$self->{h}{"x-forwarded-for"}."]";
268 }
269
270 $self->{remote_id} = $id;
271
272 if ($blocked{$id}) {
273 $self->err_blocked($blocked{$id})
274 if $blocked{$id} > $::NOW;
275
276 delete $blocked{$id};
277 }
278
279 if (%{$conn{$id}} >= $::MAX_CONN_IP) {
280 my $delay = $::PER_TIMEOUT + 15;
281 while (%{$conn{$id}} >= $::MAX_CONN_IP) {
282 if ($delay <= 0) {
283 $self->slog(2, "blocked ip $id");
284 $self->err_blocked;
285 } else {
286 Coro::Event::do_timer(after => 4); $delay -= 4;
287 }
288 }
289 }
290
291 # find out server name and port
292 if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) {
293 $host = $1;
294 } else {
295 $host = $self->{h}{host};
296 }
297
298 if (defined $host) {
213 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 299 $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80;
300 } else {
301 ($self->{server_port}, $host)
302 = unpack_sockaddr_in $self->{fh}->getsockname
303 or $self->err(500, "unable to get socket name");
304 $host = inet_ntoa $host;
305 }
214 306
307 $self->{server_name} = $host;
308
309 # enter ourselves into various lists
310 weaken ($conn{$id}{$self*1} = $self);
215 weaken ($uri{$self->{uri}}{$self*1} = $self); 311 weaken ($uri{$id}{$self->{uri}}{$self*1} = $self);
216 312
313 eval {
217 $self->map_uri; 314 $self->map_uri;
218
219 Coro::Event::do_timer(after => 5);
220
221 $self->respond; 315 $self->respond;
316 };
317
318 $self->eoconn;
319
320 die if $@ && !ref $@;
321
322 last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1;
323
324 $fh->timeout($::PER_TIMEOUT);
222 #} 325 }
223} 326}
224 327
225# uri => path mapping 328# uri => path mapping
226sub map_uri { 329sub map_uri {
227 my $self = shift; 330 my $self = shift;
228 my $host = $self->{h}{host} || "default"; 331 my $host = $self->{server_name};
229 my $uri = $self->{uri}; 332 my $uri = $self->{uri};
230 333
231 # some massaging, also makes it more secure 334 # some massaging, also makes it more secure
232 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; 335 $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge;
233 $uri =~ s%//+%/%g; 336 $uri =~ s%//+%/%g;
… …
239 342
240 $self->{name} = $uri; 343 $self->{name} = $uri;
241 344
242 # now do the path mapping 345 # now do the path mapping
243 $self->{path} = "$::DOCROOT/$host$uri"; 346 $self->{path} = "$::DOCROOT/$host$uri";
244}
245 347
246sub server_address { 348 $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} 349}
273 350
274sub _cgi { 351sub _cgi {
275 my $self = shift; 352 my $self = shift;
276 my $path = shift; 353 my $path = shift;
… …
279 # no two-way xxx supported 356 # no two-way xxx supported
280 if (0 == fork) { 357 if (0 == fork) {
281 open STDOUT, ">&".fileno($self->{fh}); 358 open STDOUT, ">&".fileno($self->{fh});
282 if (chdir $::DOCROOT) { 359 if (chdir $::DOCROOT) {
283 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 360 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
284 $ENV{HTTP_HOST} = $self->server_host; 361 $ENV{HTTP_HOST} = $self->{server_name};
285 $ENV{HTTP_PORT} = $self->{server_host}; 362 $ENV{HTTP_PORT} = $self->{server_port};
286 $ENV{SCRIPT_NAME} = $self->{name}; 363 $ENV{SCRIPT_NAME} = $self->{name};
287 exec $::INDEXPROG; 364 exec $path;
288 } 365 }
289 Coro::State::_exit(0); 366 Coro::State::_exit(0);
290 } else { 367 } else {
368 die;
291 } 369 }
370}
371
372sub server_hostport {
373 $_[0]{server_port} == 80
374 ? $_[0]{server_name}
375 : "$_[0]{server_name}:$_[0]{server_port}";
292} 376}
293 377
294sub respond { 378sub respond {
295 my $self = shift; 379 my $self = shift;
296 my $path = $self->{path}; 380 my $path = $self->{path};
297 381
298 stat $path 382 stat $path
299 or $self->err(404, "not found"); 383 or $self->err(404, "not found");
384
385 $self->{stat} = [stat _];
300 386
301 # idiotic netscape sends idiotic headers AGAIN 387 # idiotic netscape sends idiotic headers AGAIN
302 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 388 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
303 ? str2time $1 : 0; 389 ? str2time $1 : 0;
304 390
305 if (-d _ && -r _) { 391 if (-d _ && -r _) {
306 # directory 392 # directory
307 if ($path !~ /\/$/) { 393 if ($path !~ /\/$/) {
308 # create a redirect to get the trailing "/" 394 # create a redirect to get the trailing "/"
309 my $host = $self->server_hostport; 395 # we don't try to avoid the :80
310 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 396 $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" });
311 } else { 397 } else {
312 $ims < (stat _)[9] 398 $ims < $self->{stat}[9]
313 or $self->err(304, "not modified"); 399 or $self->err(304, "not modified");
314 400
315 if ($self->{method} eq "GET") {
316 if (-r "$path/index.html") { 401 if (-r "$path/index.html") {
317 $self->{path} .= "/index.html"; 402 $self->{path} .= "/index.html";
318 $self->handle_file; 403 $self->handle_file;
319 } else { 404 } else {
320 $self->handle_dir; 405 $self->handle_dir;
321 }
322 } 406 }
323 } 407 }
324 } elsif (-f _ && -r _) { 408 } elsif (-f _ && -r _) {
325 -x _ and $self->err(403, "forbidden"); 409 -x _ and $self->err(403, "forbidden");
326 $self->handle_file; 410 $self->handle_file;
… …
329 } 413 }
330} 414}
331 415
332sub handle_dir { 416sub handle_dir {
333 my $self = shift; 417 my $self = shift;
334 $self->_cgi($::INDEXPROG); 418 my $idx = $self->diridx;
419
420 $self->response(200, "ok",
421 {
422 "Content-Type" => "text/html",
423 "Content-Length" => length $idx,
424 },
425 $idx);
335} 426}
336 427
337sub handle_file { 428sub handle_file {
338 my $self = shift; 429 my $self = shift;
339 my $length = -s _; 430 my $length = $self->{stat}[7];
431 my $queue = $::transfers[$length >= $::TRANSFER_SMALL];
340 my $hdr = { 432 my $hdr = {
341 "Last-Modified" => time2str ((stat _)[9]), 433 "Last-Modified" => time2str ((stat _)[9]),
342 }; 434 };
343 435
344 my @code = (200, "ok"); 436 my @code = (200, "ok");
… …
352 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); 444 ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1);
353 } else { 445 } else {
354 ($l, $h) = (0, $length - 1); 446 ($l, $h) = (0, $length - 1);
355 goto ignore; 447 goto ignore;
356 } 448 }
357 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; 449 goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l;
358 } 450 }
359 $hdr->{"Content-Range"} = "bytes */$length"; 451 $hdr->{"Content-Range"} = "bytes */$length";
452 $hdr->{"Content-Length"} = $length;
360 $self->err(416, "not satisfiable", $hdr); 453 $self->err(416, "not satisfiable", $hdr, "");
361 454
362satisfiable: 455satisfiable:
456 # check for segmented downloads
457 if ($l && $::NO_SEGMENTED) {
458 my $delay = $::PER_TIMEOUT + 15;
459 while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) {
460 if ($delay <= 0) {
461 $self->err_segmented_download;
462 } else {
463 Coro::Event::do_timer(after => 4); $delay -= 4;
464 }
465 }
466 }
467
363 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 468 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
364 @code = (206, "partial content"); 469 @code = (206, "partial content");
365 $length = $h - $l + 1; 470 $length = $h - $l + 1;
366 471
367ignore: 472ignore:
368 } else { 473 } else {
369 ($l, $h) = (0, $length - 1); 474 ($l, $h) = (0, $length - 1);
370 } 475 }
371 476
372 if ($self->{path} =~ /\.html$/) { 477 $self->{path} =~ /\.([^.]+)$/;
373 $hdr->{"Content-Type"} = "text/html";
374 } else {
375 $hdr->{"Content-Type"} = "application/octet-stream"; 478 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
376 }
377
378 $hdr->{"Content-Length"} = $length; 479 $hdr->{"Content-Length"} = $length;
379 480
380 $self->print_response(@code, $hdr, ""); 481 $self->response(@code, $hdr, "");
381 482
382 if ($self->{method} eq "GET") { 483 if ($self->{method} eq "GET") {
484 $self->{time} = $::NOW;
485
486 my $fudge = $queue->[0]->waiters;
487 $fudge = $fudge ? ($fudge+1)/$fudge : 1;
488
489 $queue->[1] *= $fudge;
490 my $transfer = $queue->[0]->guard;
491
492 if ($fudge != 1) {
493 $queue->[1] /= $fudge;
494 $queue->[1] = $queue->[1] * $::wait_factor
495 + ($::NOW - $self->{time}) * (1 - $::wait_factor);
496 }
497 $self->{time} = $::NOW;
498
499 $self->{fh}->writable or return;
500
383 my ($fh, $buf); 501 my ($fh, $buf, $r);
502 my $current = $Coro::current;
384 open $fh, "<", $self->{path} 503 open $fh, "<", $self->{path}
385 or die "$self->{path}: late open failure ($!)"; 504 or die "$self->{path}: late open failure ($!)";
386 505
387 if ($l) {
388 sysseek $fh, $l, 0
389 or die "$self->{path}: cannot seek to $l ($!)";
390 }
391
392 $h -= $l - 1; 506 $h -= $l - 1;
393 507
508 if (0) {
509 if ($l) {
510 sysseek $fh, $l, 0;
511 }
512 }
513
394 while ($h > 0) { 514 while ($h > 0) {
395 $h -= sysread $fh, $buf, $h > 4096 ? 4096 : $h; 515 if (0) {
396 print {$self->{fh}} $buf 516 sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h
517 or last;
518 } else {
519 aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h),
520 $buf, 0, sub {
521 $r = $_[0];
522 Coro::ready($current);
523 });
524 &Coro::schedule;
525 last unless $r;
526 }
527 my $w = syswrite $self->{fh}, $buf
397 or last; 528 or last;
529 $::written += $w;
530 $self->{written} += $w;
531 $l += $r;
398 } 532 }
399 }
400 533
401 close $fh; 534 close $fh;
535 }
402} 536}
403 537
4041; 5381;

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