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 (); |
7 | |
9 | |
8 | no utf8; |
10 | no utf8; |
9 | use bytes; |
11 | use bytes; |
10 | |
12 | |
11 | # at least on my machine, this thingy serves files |
13 | # at least on my machine, this thingy serves files |
… | |
… | |
13 | # and quite a bit slower than thttpd :( |
15 | # and quite a bit slower than thttpd :( |
14 | |
16 | |
15 | $SIG{PIPE} = 'IGNORE'; |
17 | $SIG{PIPE} = 'IGNORE'; |
16 | |
18 | |
17 | our $accesslog; |
19 | our $accesslog; |
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20 | our $errorlog; |
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21 | |
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22 | our $NOW; |
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23 | our $HTTP_NOW; |
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24 | |
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25 | Event->timer(interval => 1, hard => 1, cb => sub { |
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26 | $NOW = time; |
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27 | $HTTP_NOW = time2str $NOW; |
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28 | })->now; |
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29 | |
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30 | if ($ERROR_LOG) { |
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31 | use IO::Handle; |
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32 | open $errorlog, ">>$ERROR_LOG" |
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33 | or die "$ERROR_LOG: $!"; |
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34 | $errorlog->autoflush(1); |
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35 | } |
18 | |
36 | |
19 | if ($ACCESS_LOG) { |
37 | if ($ACCESS_LOG) { |
20 | use IO::Handle; |
38 | use IO::Handle; |
21 | open $accesslog, ">>$ACCESS_LOG" |
39 | open $accesslog, ">>$ACCESS_LOG" |
22 | or die "$ACCESS_LOG: $!"; |
40 | or die "$ACCESS_LOG: $!"; |
… | |
… | |
24 | } |
42 | } |
25 | |
43 | |
26 | sub slog { |
44 | sub slog { |
27 | my $level = shift; |
45 | my $level = shift; |
28 | my $format = shift; |
46 | my $format = shift; |
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47 | my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW); |
29 | printf "---: $format\n", @_; |
48 | printf "$NOW: $format\n", @_; |
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49 | printf $errorlog "$NOW: $format\n", @_ if $errorlog; |
30 | } |
50 | } |
31 | |
51 | |
32 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
52 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
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53 | our $httpevent = new Coro::Signal; |
33 | |
54 | |
34 | our $wait_factor = 0.95; |
55 | our $queue_file = new transferqueue slots => $MAX_TRANSFERS, maxsize => 250_000_000; |
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56 | our $queue_index = new transferqueue slots => 10; |
35 | |
57 | |
36 | our @transfers = ( |
58 | our $requests; |
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; |
99 | use Convert::Scalar 'weaken'; |
129 | use Convert::Scalar 'weaken'; |
100 | use Linux::AIO; |
130 | use Linux::AIO; |
101 | |
131 | |
102 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
132 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
103 | |
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104 | my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4; |
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105 | |
133 | |
106 | Event->io(fd => Linux::AIO::poll_fileno, |
134 | Event->io(fd => Linux::AIO::poll_fileno, |
107 | poll => 'r', async => 1, |
135 | poll => 'r', async => 1, |
108 | cb => \&Linux::AIO::poll_cb); |
136 | cb => \&Linux::AIO::poll_cb); |
109 | |
137 | |
… | |
… | |
127 | |
155 | |
128 | read_mimetypes; |
156 | read_mimetypes; |
129 | |
157 | |
130 | sub new { |
158 | sub new { |
131 | my $class = shift; |
159 | my $class = shift; |
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160 | my $fh = shift; |
132 | my $peername = shift; |
161 | my $peername = shift; |
133 | my $fh = shift; |
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134 | my $self = bless { fh => $fh }, $class; |
162 | my $self = bless { fh => $fh }, $class; |
135 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
163 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
136 | or $self->err(500, "unable to decode peername"); |
164 | or $self->err(500, "unable to decode peername"); |
137 | |
165 | |
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166 | $self->{remote_addr} = |
138 | $self->{remote_addr} = inet_ntoa $iaddr; |
167 | $self->{remote_id} = inet_ntoa $iaddr; |
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168 | |
139 | $self->{time} = $::NOW; |
169 | $self->{time} = $::NOW; |
140 | |
170 | |
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171 | weaken ($Coro::current->{conn} = $self); |
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172 | |
141 | $::conns++; |
173 | $::conns++; |
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174 | $::maxconns = $::conns if $::conns > $::maxconns; |
142 | |
175 | |
143 | $self; |
176 | $self; |
144 | } |
177 | } |
145 | |
178 | |
146 | sub DESTROY { |
179 | sub DESTROY { |
147 | my $self = shift; |
180 | #my $self = shift; |
148 | |
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149 | $::conns--; |
181 | $::conns--; |
150 | |
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151 | $self->eoconn; |
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152 | } |
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153 | |
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154 | # end of connection |
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155 | sub eoconn { |
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156 | my $self = shift; |
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157 | |
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158 | # clean up hints |
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159 | delete $conn{$self->{remote_id}}{$self*1}; |
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160 | delete $uri{$self->{remote_id}}{$self->{uri}}{$self*1}; |
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161 | } |
182 | } |
162 | |
183 | |
163 | sub slog { |
184 | sub slog { |
164 | my $self = shift; |
185 | my $self = shift; |
165 | main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]"); |
186 | main::slog($_[0], "$self->{remote_id}> $_[1]"); |
166 | } |
187 | } |
167 | |
188 | |
168 | sub response { |
189 | sub response { |
169 | my ($self, $code, $msg, $hdr, $content) = @_; |
190 | my ($self, $code, $msg, $hdr, $content) = @_; |
170 | my $res = "HTTP/1.1 $code $msg\015\012"; |
191 | my $res = "HTTP/1.1 $code $msg\015\012"; |
171 | |
192 | |
172 | $self->{h}{connection} ||= $hdr->{Connection}; |
193 | if (exists $hdr->{Connection}) { |
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194 | if ($hdr->{Connection} =~ /close/) { |
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195 | $self->{h}{connection} = "close" |
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196 | } |
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197 | } else { |
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198 | if ($self->{version} < 1.1) { |
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199 | if ($self->{h}{connection} =~ /keep-alive/i) { |
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200 | $hdr->{Connection} = "Keep-Alive"; |
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201 | } else { |
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202 | $self->{h}{connection} = "close" |
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203 | } |
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204 | } |
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205 | } |
173 | |
206 | |
174 | $res .= "Date: $HTTP_NOW\015\012"; |
207 | $res .= "Date: $HTTP_NOW\015\012"; |
175 | |
208 | |
176 | while (my ($h, $v) = each %$hdr) { |
209 | while (my ($h, $v) = each %$hdr) { |
177 | $res .= "$h: $v\015\012" |
210 | $res .= "$h: $v\015\012" |
178 | } |
211 | } |
179 | $res .= "\015\012"; |
212 | $res .= "\015\012"; |
180 | |
213 | |
181 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
214 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
182 | |
215 | |
183 | my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; |
216 | my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $NOW). |
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217 | " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}. |
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218 | " \"$self->{h}{referer}\"\n"; |
184 | |
219 | |
185 | print $accesslog $log if $accesslog; |
220 | print $accesslog $log if $accesslog; |
186 | print STDERR $log; |
221 | print STDERR $log; |
187 | |
222 | |
188 | $self->{written} += |
223 | $self->{written} += |
… | |
… | |
261 | |
296 | |
262 | $self->{h}{$h} = substr $v, 1 |
297 | $self->{h}{$h} = substr $v, 1 |
263 | while ($h, $v) = each %hdr; |
298 | while ($h, $v) = each %hdr; |
264 | } |
299 | } |
265 | |
300 | |
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301 | $requests++; |
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302 | |
266 | # remote id should be unique per user |
303 | # remote id should be unique per user |
267 | my $id = $self->{remote_addr}; |
304 | my $id = $self->{remote_addr}; |
268 | |
305 | |
269 | if (exists $self->{h}{"client-ip"}) { |
306 | if (exists $self->{h}{"client-ip"}) { |
270 | $id .= "[".$self->{h}{"client-ip"}."]"; |
307 | $id .= "[".$self->{h}{"client-ip"}."]"; |
… | |
… | |
272 | $id .= "[".$self->{h}{"x-forwarded-for"}."]"; |
309 | $id .= "[".$self->{h}{"x-forwarded-for"}."]"; |
273 | } |
310 | } |
274 | |
311 | |
275 | $self->{remote_id} = $id; |
312 | $self->{remote_id} = $id; |
276 | |
313 | |
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314 | weaken (local $conn{$id}{$self*1} = $self); |
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315 | |
277 | if ($blocked{$id}) { |
316 | if ($blocked{$id}) { |
278 | $self->err_blocked($blocked{$id}) |
317 | $self->err_blocked |
279 | if $blocked{$id} > $::NOW; |
318 | if $blocked{$id}[0] > $::NOW; |
280 | |
319 | |
281 | delete $blocked{$id}; |
320 | delete $blocked{$id}; |
282 | } |
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283 | |
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284 | if (%{$conn{$id}} >= $::MAX_CONN_IP) { |
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285 | my $delay = $::PER_TIMEOUT + 15; |
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286 | while (%{$conn{$id}} >= $::MAX_CONN_IP) { |
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287 | if ($delay <= 0) { |
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288 | $self->slog(2, "blocked ip $id"); |
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289 | $self->err_blocked; |
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290 | } else { |
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291 | Coro::Event::do_timer(after => 4); $delay -= 4; |
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292 | } |
|
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293 | } |
|
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294 | } |
321 | } |
295 | |
322 | |
296 | # find out server name and port |
323 | # find out server name and port |
297 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
324 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
298 | $host = $1; |
325 | $host = $1; |
… | |
… | |
302 | |
329 | |
303 | if (defined $host) { |
330 | if (defined $host) { |
304 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
331 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
305 | } else { |
332 | } else { |
306 | ($self->{server_port}, $host) |
333 | ($self->{server_port}, $host) |
307 | = unpack_sockaddr_in $self->{fh}->getsockname |
334 | = unpack_sockaddr_in $self->{fh}->sockname |
308 | or $self->err(500, "unable to get socket name"); |
335 | or $self->err(500, "unable to get socket name"); |
309 | $host = inet_ntoa $host; |
336 | $host = inet_ntoa $host; |
310 | } |
337 | } |
311 | |
338 | |
312 | $self->{server_name} = $host; |
339 | $self->{server_name} = $host; |
313 | |
340 | |
314 | # enter ourselves into various lists |
|
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315 | weaken ($conn{$id}{$self*1} = $self); |
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316 | weaken ($uri{$id}{$self->{uri}}{$self*1} = $self); |
341 | weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self); |
317 | |
342 | |
318 | eval { |
343 | eval { |
319 | $self->map_uri; |
344 | $self->map_uri; |
320 | $self->respond; |
345 | $self->respond; |
321 | }; |
346 | }; |
322 | |
347 | |
323 | $self->eoconn; |
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324 | |
|
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325 | die if $@ && !ref $@; |
348 | die if $@ && !ref $@; |
326 | |
349 | |
327 | last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1; |
350 | last if $self->{h}{connection} =~ /close/i; |
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351 | |
|
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352 | $httpevent->broadcast; |
328 | |
353 | |
329 | $fh->timeout($::PER_TIMEOUT); |
354 | $fh->timeout($::PER_TIMEOUT); |
330 | } |
355 | } |
|
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356 | } |
|
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357 | |
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358 | sub block { |
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359 | my $self = shift; |
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360 | |
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361 | $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]]; |
|
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362 | $self->slog(2, "blocked ip $self->{remote_id}"); |
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363 | $self->err_blocked; |
331 | } |
364 | } |
332 | |
365 | |
333 | # uri => path mapping |
366 | # uri => path mapping |
334 | sub map_uri { |
367 | sub map_uri { |
335 | my $self = shift; |
368 | my $self = shift; |
… | |
… | |
382 | |
415 | |
383 | sub respond { |
416 | sub respond { |
384 | my $self = shift; |
417 | my $self = shift; |
385 | my $path = $self->{path}; |
418 | my $path = $self->{path}; |
386 | |
419 | |
387 | stat $path |
420 | if ($self->{name} =~ s%^/internal/([^/]+)%%) { |
388 | or $self->err(404, "not found"); |
421 | if ($::internal{$1}) { |
389 | |
422 | $::internal{$1}->($self); |
390 | $self->{stat} = [stat _]; |
|
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391 | |
|
|
392 | # idiotic netscape sends idiotic headers AGAIN |
|
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393 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
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394 | ? str2time $1 : 0; |
|
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395 | |
|
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396 | if (-d _ && -r _) { |
|
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397 | # directory |
|
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398 | if ($path !~ /\/$/) { |
|
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399 | # create a redirect to get the trailing "/" |
|
|
400 | # we don't try to avoid the :80 |
|
|
401 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
|
|
402 | } else { |
423 | } else { |
403 | $ims < $self->{stat}[9] |
424 | $self->err(404, "not found"); |
|
|
425 | } |
|
|
426 | } else { |
|
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427 | |
|
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428 | stat $path |
404 | or $self->err(304, "not modified"); |
429 | or $self->err(404, "not found"); |
405 | |
430 | |
406 | if (-r "$path/index.html") { |
431 | $self->{stat} = [stat _]; |
407 | $self->{path} .= "/index.html"; |
432 | |
408 | $self->handle_file; |
433 | # idiotic netscape sends idiotic headers AGAIN |
|
|
434 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
435 | ? str2time $1 : 0; |
|
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436 | |
|
|
437 | if (-d _ && -r _) { |
|
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438 | # directory |
|
|
439 | if ($path !~ /\/$/) { |
|
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440 | # create a redirect to get the trailing "/" |
|
|
441 | # we don't try to avoid the :80 |
|
|
442 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
409 | } else { |
443 | } else { |
|
|
444 | $ims < $self->{stat}[9] |
|
|
445 | or $self->err(304, "not modified"); |
|
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446 | |
|
|
447 | if (-r "$path/index.html") { |
|
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448 | # replace directory "size" by index.html filesize |
|
|
449 | $self->{stat} = [stat ($self->{path} .= "/index.html")]; |
|
|
450 | $self->handle_file($queue_index); |
|
|
451 | } else { |
410 | $self->handle_dir; |
452 | $self->handle_dir; |
411 | } |
453 | } |
412 | } |
454 | } |
413 | } elsif (-f _ && -r _) { |
455 | } elsif (-f _ && -r _) { |
414 | -x _ and $self->err(403, "forbidden"); |
456 | -x _ and $self->err(403, "forbidden"); |
|
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457 | |
|
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458 | if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
|
459 | my $timeout = $::NOW + 10; |
|
|
460 | while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
|
461 | if ($timeout < $::NOW) { |
|
|
462 | $self->block($::BLOCKTIME, "too many connections"); |
|
|
463 | } else { |
|
|
464 | $httpevent->wait; |
|
|
465 | } |
|
|
466 | } |
|
|
467 | } |
|
|
468 | |
415 | $self->handle_file; |
469 | $self->handle_file($queue_file); |
416 | } else { |
470 | } else { |
417 | $self->err(404, "not found"); |
471 | $self->err(404, "not found"); |
|
|
472 | } |
418 | } |
473 | } |
419 | } |
474 | } |
420 | |
475 | |
421 | sub handle_dir { |
476 | sub handle_dir { |
422 | my $self = shift; |
477 | my $self = shift; |
… | |
… | |
424 | |
479 | |
425 | $self->response(200, "ok", |
480 | $self->response(200, "ok", |
426 | { |
481 | { |
427 | "Content-Type" => "text/html", |
482 | "Content-Type" => "text/html", |
428 | "Content-Length" => length $idx, |
483 | "Content-Length" => length $idx, |
|
|
484 | "Last-Modified" => time2str ($self->{stat}[9]), |
429 | }, |
485 | }, |
430 | $idx); |
486 | $idx); |
431 | } |
487 | } |
432 | |
488 | |
433 | sub handle_file { |
489 | sub handle_file { |
434 | my $self = shift; |
490 | my ($self, $queue) = @_; |
435 | my $length = $self->{stat}[7]; |
491 | my $length = $self->{stat}[7]; |
436 | my $queue = $::transfers[$length >= $::TRANSFER_SMALL]; |
|
|
437 | my $hdr = { |
492 | my $hdr = { |
438 | "Last-Modified" => time2str ((stat _)[9]), |
493 | "Last-Modified" => time2str ((stat _)[9]), |
439 | }; |
494 | }; |
440 | |
495 | |
441 | my @code = (200, "ok"); |
496 | my @code = (200, "ok"); |
… | |
… | |
458 | $self->err(416, "not satisfiable", $hdr, ""); |
513 | $self->err(416, "not satisfiable", $hdr, ""); |
459 | |
514 | |
460 | satisfiable: |
515 | satisfiable: |
461 | # check for segmented downloads |
516 | # check for segmented downloads |
462 | if ($l && $::NO_SEGMENTED) { |
517 | if ($l && $::NO_SEGMENTED) { |
463 | my $delay = $::PER_TIMEOUT + 15; |
518 | my $timeout = $::NOW + 15; |
464 | while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { |
519 | while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { |
465 | if ($delay <= 0) { |
520 | if ($timeout <= $::NOW) { |
|
|
521 | $self->block($::BLOCKTIME, "segmented downloads are forbidden"); |
466 | $self->err_segmented_download; |
522 | #$self->err_segmented_download; |
467 | } else { |
523 | } else { |
468 | Coro::Event::do_timer(after => 4); $delay -= 4; |
524 | $httpevent->wait; |
469 | } |
525 | } |
470 | } |
526 | } |
471 | } |
527 | } |
472 | |
528 | |
473 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
529 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
… | |
… | |
486 | $self->response(@code, $hdr, ""); |
542 | $self->response(@code, $hdr, ""); |
487 | |
543 | |
488 | if ($self->{method} eq "GET") { |
544 | if ($self->{method} eq "GET") { |
489 | $self->{time} = $::NOW; |
545 | $self->{time} = $::NOW; |
490 | |
546 | |
491 | my $fudge = $queue->[0]->waiters; |
547 | my $current = $Coro::current; |
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 | $self->{fh}->writable or return; |
|
|
505 | |
548 | |
506 | my ($fh, $buf, $r); |
549 | my ($fh, $buf, $r); |
507 | my $current = $Coro::current; |
550 | |
508 | open $fh, "<", $self->{path} |
551 | open $fh, "<", $self->{path} |
509 | or die "$self->{path}: late open failure ($!)"; |
552 | or die "$self->{path}: late open failure ($!)"; |
510 | |
553 | |
511 | $h -= $l - 1; |
554 | $h -= $l - 1; |
512 | |
555 | |
513 | if (0) { |
556 | if (0) { # !AIO |
514 | if ($l) { |
557 | if ($l) { |
515 | sysseek $fh, $l, 0; |
558 | sysseek $fh, $l, 0; |
516 | } |
559 | } |
517 | } |
560 | } |
|
|
561 | |
|
|
562 | my $transfer = $queue->start_transfer($h); |
|
|
563 | my $locked; |
|
|
564 | my $bufsize = $::WAIT_BUFSIZE; # initial buffer size |
518 | |
565 | |
519 | while ($h > 0) { |
566 | while ($h > 0) { |
|
|
567 | unless ($locked) { |
|
|
568 | if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { |
|
|
569 | $bufsize = $::BUFSIZE; |
|
|
570 | $self->{time} = $::NOW; |
|
|
571 | } |
|
|
572 | } |
|
|
573 | |
|
|
574 | if ($blocked{$self->{remote_id}}) { |
|
|
575 | $self->{h}{connection} = "close"; |
|
|
576 | die bless {}, err::; |
|
|
577 | } |
|
|
578 | |
520 | if (0) { |
579 | if (0) { # !AIO |
521 | sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h |
580 | sysread $fh, $buf, $h > $bufsize ? $bufsize : $h |
522 | or last; |
581 | or last; |
523 | } else { |
582 | } else { |
524 | undef $buf; |
583 | aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h), |
525 | $aio_requests->down; |
|
|
526 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
|
|
527 | $buf, 0, sub { |
584 | $buf, 0, sub { |
528 | $r = $_[0]; |
585 | $r = $_[0]; |
529 | $current->ready; |
586 | Coro::ready($current); |
530 | }); |
587 | }); |
531 | &Coro::schedule; |
588 | &Coro::schedule; |
532 | $aio_requests->up; |
|
|
533 | last unless $r; |
589 | last unless $r; |
534 | } |
590 | } |
535 | my $w = $self->{fh}->syswrite($buf) |
591 | my $w = syswrite $self->{fh}, $buf |
536 | or last; |
592 | or last; |
537 | $::written += $w; |
593 | $::written += $w; |
538 | $self->{written} += $w; |
594 | $self->{written} += $w; |
539 | $l += $r; |
595 | $l += $r; |
540 | } |
596 | } |