… | |
… | |
17 | of what the messages do. I am too lazy to document all this here. |
17 | of what the messages do. I am too lazy to document all this here. |
18 | |
18 | |
19 | =head1 WARNING |
19 | =head1 WARNING |
20 | |
20 | |
21 | This module is alpha. While it probably won't destroy (much :) of your |
21 | This module is alpha. While it probably won't destroy (much :) of your |
22 | data, it currently works only with the Event module (alkthough the event |
22 | data, it currently falls short of what it should provide (intelligent uri |
23 | mechanism is fully pluggable). |
23 | following, splitfile downloads, healing...) |
|
|
24 | |
|
|
25 | =head2 IMPORT TAGS |
|
|
26 | |
|
|
27 | Nothing much can be "imported" from this module right now. There are, |
|
|
28 | however, certain "import tags" that can be used to select the event model |
|
|
29 | to be used. |
|
|
30 | |
|
|
31 | Event models are implemented as modules under the C<Net::FCP::Event::xyz> |
|
|
32 | class, where C<xyz> is the event model to use. The default is C<Event> (or |
|
|
33 | later C<Auto>). |
|
|
34 | |
|
|
35 | The import tag to use is named C<event=xyz>, e.g. C<event=Event>, |
|
|
36 | C<event=Glib> etc. |
|
|
37 | |
|
|
38 | You should specify the event module to use only in the main program. |
24 | |
39 | |
25 | =head2 THE Net::FCP CLASS |
40 | =head2 THE Net::FCP CLASS |
26 | |
41 | |
27 | =over 4 |
42 | =over 4 |
28 | |
43 | |
29 | =cut |
44 | =cut |
30 | |
45 | |
31 | package Net::FCP; |
46 | package Net::FCP; |
32 | |
47 | |
33 | use Carp; |
48 | use Carp; |
34 | use IO::Socket::INET; |
|
|
35 | |
49 | |
36 | $VERSION = 0.02; |
50 | $VERSION = 0.07; |
37 | |
51 | |
38 | sub event_reg_cb { |
52 | no warnings; |
39 | my ($obj) = @_; |
|
|
40 | require Event; |
|
|
41 | |
53 | |
42 | $obj->{eventdata} = Event->io ( |
54 | our $EVENT = Net::FCP::Event::Auto::; |
43 | fd => $obj->{fh}, |
55 | $EVENT = Net::FCP::Event::Event;#d# |
44 | poll => 'r', |
56 | |
45 | cb => sub { |
57 | sub import { |
46 | $obj->fh_ready; |
58 | shift; |
|
|
59 | |
|
|
60 | for (@_) { |
|
|
61 | if (/^event=(\w+)$/) { |
|
|
62 | $EVENT = "Net::FCP::Event::$1"; |
47 | }, |
63 | } |
48 | ); |
64 | } |
|
|
65 | eval "require $EVENT"; |
|
|
66 | die $@ if $@; |
49 | } |
67 | } |
50 | |
|
|
51 | sub event_unreg_cb { |
|
|
52 | $_[0]{eventdata} |
|
|
53 | and (delete $_[0]{eventdata})->cancel; |
|
|
54 | } |
|
|
55 | |
|
|
56 | sub event_wait_cb { |
|
|
57 | Event::one_event(); |
|
|
58 | } |
|
|
59 | |
|
|
60 | $regcb = \&event_reg_cb; |
|
|
61 | $unregcb = \&event_unreg_cb; |
|
|
62 | $waitcb = \&event_wait_cb; |
|
|
63 | |
68 | |
64 | sub touc($) { |
69 | sub touc($) { |
65 | local $_ = shift; |
70 | local $_ = shift; |
66 | 1 while s/((?:^|_)(?:svk|chk|uri)(?:_|$))/\U$1/; |
71 | 1 while s/((?:^|_)(?:svk|chk|uri)(?:_|$))/\U$1/; |
67 | s/(?:^|_)(.)/\U$1/g; |
72 | s/(?:^|_)(.)/\U$1/g; |
… | |
… | |
72 | local $_ = shift; |
77 | local $_ = shift; |
73 | s/(?<=[a-z])(?=[A-Z])/_/g; |
78 | s/(?<=[a-z])(?=[A-Z])/_/g; |
74 | lc $_; |
79 | lc $_; |
75 | } |
80 | } |
76 | |
81 | |
|
|
82 | =item $meta = Net::FCP::parse_metadata $string |
|
|
83 | |
|
|
84 | Parse a metadata string and return it. |
|
|
85 | |
|
|
86 | The metadata will be a hashref with key C<version> (containing |
|
|
87 | the mandatory version header entries). |
|
|
88 | |
|
|
89 | All other headers are represented by arrayrefs (they can be repeated). |
|
|
90 | |
|
|
91 | Since this is confusing, here is a rather verbose example of a parsed |
|
|
92 | manifest: |
|
|
93 | |
|
|
94 | ( |
|
|
95 | version => { revision => 1 }, |
|
|
96 | document => [ |
|
|
97 | { |
|
|
98 | "info.format" => "image/jpeg", |
|
|
99 | name => "background.jpg", |
|
|
100 | "redirect.target" => "freenet:CHK\@ZcagI,ra726bSw" |
|
|
101 | }, |
|
|
102 | { |
|
|
103 | "info.format" => "text/html", |
|
|
104 | name => ".next", |
|
|
105 | "redirect.target" => "freenet:SSK\@ilUPAgM/TFEE/3" |
|
|
106 | }, |
|
|
107 | { |
|
|
108 | "info.format" => "text/html", |
|
|
109 | "redirect.target" => "freenet:CHK\@8M8Po8ucwI,8xA" |
|
|
110 | } |
|
|
111 | ] |
|
|
112 | ) |
|
|
113 | |
|
|
114 | =cut |
|
|
115 | |
|
|
116 | sub parse_metadata { |
|
|
117 | my $meta; |
|
|
118 | |
|
|
119 | my $data = shift; |
|
|
120 | if ($data =~ /^Version\015?\012/gc) { |
|
|
121 | my $hdr = $meta->{version} = {}; |
|
|
122 | |
|
|
123 | for (;;) { |
|
|
124 | while ($data =~ /\G([^=\015\012]+)=([^\015\012]*)\015?\012/gc) { |
|
|
125 | my ($k, $v) = ($1, $2); |
|
|
126 | my @p = split /\./, tolc $k, 3; |
|
|
127 | |
|
|
128 | $hdr->{$p[0]} = $v if @p == 1; # lamest code I ever wrote |
|
|
129 | $hdr->{$p[0]}{$p[1]} = $v if @p == 2; |
|
|
130 | $hdr->{$p[0]}{$p[1]}{$p[2]} = $v if @p == 3; |
|
|
131 | die "FATAL: 4+ dot metadata" if @p >= 4; |
|
|
132 | } |
|
|
133 | |
|
|
134 | if ($data =~ /\GEndPart\015?\012/gc) { |
|
|
135 | # nop |
|
|
136 | } elsif ($data =~ /\GEnd\015?\012/gc) { |
|
|
137 | last; |
|
|
138 | } elsif ($data =~ /\G([A-Za-z0-9.\-]+)\015?\012/gcs) { |
|
|
139 | push @{$meta->{tolc $1}}, $hdr = {}; |
|
|
140 | } elsif ($data =~ /\G(.*)/gcs) { |
|
|
141 | die "metadata format error ($1)"; |
|
|
142 | } |
|
|
143 | } |
|
|
144 | } |
|
|
145 | |
|
|
146 | #$meta->{tail} = substr $data, pos $data; |
|
|
147 | |
|
|
148 | $meta; |
|
|
149 | } |
|
|
150 | |
77 | =item $fcp = new Net::FCP [host => $host][, port => $port] |
151 | =item $fcp = new Net::FCP [host => $host][, port => $port] |
78 | |
152 | |
79 | Create a new virtual FCP connection to the given host and port (default |
153 | Create a new virtual FCP connection to the given host and port (default |
80 | 127.0.0.1:8481, or the environment variables C<FREDHOST> and C<FREDPORT>). |
154 | 127.0.0.1:8481, or the environment variables C<FREDHOST> and C<FREDPORT>). |
81 | |
155 | |
… | |
… | |
88 | sub new { |
162 | sub new { |
89 | my $class = shift; |
163 | my $class = shift; |
90 | my $self = bless { @_ }, $class; |
164 | my $self = bless { @_ }, $class; |
91 | |
165 | |
92 | $self->{host} ||= $ENV{FREDHOST} || "127.0.0.1"; |
166 | $self->{host} ||= $ENV{FREDHOST} || "127.0.0.1"; |
93 | $self->{port} ||= $ENV{FREDPORt} || 8481; |
167 | $self->{port} ||= $ENV{FREDPORT} || 8481; |
94 | |
168 | |
95 | $self->{nodehello} = $self->client_hello |
169 | #$self->{nodehello} = $self->client_hello |
96 | or croak "unable to get nodehello from node\n"; |
170 | # or croak "unable to get nodehello from node\n"; |
97 | |
171 | |
98 | $self; |
172 | $self; |
99 | } |
173 | } |
100 | |
174 | |
|
|
175 | sub progress { |
|
|
176 | my ($self, $txn, $type, $attr) = @_; |
|
|
177 | warn "progress<$txn,$type," . (join ":", %$attr) . ">\n"; |
|
|
178 | } |
|
|
179 | |
101 | =item $txn = $fcp->txn(type => attr => val,...) |
180 | =item $txn = $fcp->txn(type => attr => val,...) |
102 | |
181 | |
103 | The low-level interface to transactions. Don't use it. |
182 | The low-level interface to transactions. Don't use it. |
|
|
183 | |
|
|
184 | Here are some examples of using transactions: |
|
|
185 | |
|
|
186 | The blocking case, no (visible) transactions involved: |
|
|
187 | |
|
|
188 | my $nodehello = $fcp->client_hello; |
|
|
189 | |
|
|
190 | A transaction used in a blocking fashion: |
|
|
191 | |
|
|
192 | my $txn = $fcp->txn_client_hello; |
|
|
193 | ... |
|
|
194 | my $nodehello = $txn->result; |
|
|
195 | |
|
|
196 | Or shorter: |
|
|
197 | |
|
|
198 | my $nodehello = $fcp->txn_client_hello->result; |
|
|
199 | |
|
|
200 | Setting callbacks: |
|
|
201 | |
|
|
202 | $fcp->txn_client_hello->cb( |
|
|
203 | sub { my $nodehello => $_[0]->result } |
|
|
204 | ); |
104 | |
205 | |
105 | =cut |
206 | =cut |
106 | |
207 | |
107 | sub txn { |
208 | sub txn { |
108 | my ($self, $type, %attr) = @_; |
209 | my ($self, $type, %attr) = @_; |
… | |
… | |
187 | =cut |
288 | =cut |
188 | |
289 | |
189 | _txn generate_chk => sub { |
290 | _txn generate_chk => sub { |
190 | my ($self, $metadata, $data) = @_; |
291 | my ($self, $metadata, $data) = @_; |
191 | |
292 | |
192 | $self->txn (generate_chk => data => "$data$metadata", meta_data_length => length $metadata); |
293 | $self->txn (generate_chk => data => "$data$metadata", metadata_length => length $metadata); |
193 | }; |
294 | }; |
194 | |
295 | |
195 | =item $txn = $fcp->txn_generate_svk_pair |
296 | =item $txn = $fcp->txn_generate_svk_pair |
196 | |
297 | |
197 | =item ($public, $private) = @{ $fcp->generate_svk_pair } |
298 | =item ($public, $private) = @{ $fcp->generate_svk_pair } |
… | |
… | |
248 | $self->txn (get_size => URI => $uri); |
349 | $self->txn (get_size => URI => $uri); |
249 | }; |
350 | }; |
250 | |
351 | |
251 | =item $txn = $fcp->txn_client_get ($uri [, $htl = 15 [, $removelocal = 0]]) |
352 | =item $txn = $fcp->txn_client_get ($uri [, $htl = 15 [, $removelocal = 0]]) |
252 | |
353 | |
253 | =item ($data, $metadata) = @{ $fcp->client_get ($uri, $htl, $removelocal) |
354 | =item ($metadata, $data) = @{ $fcp->client_get ($uri, $htl, $removelocal) |
254 | |
355 | |
255 | Fetches a (small, as it should fit into memory) file from freenet. |
356 | Fetches a (small, as it should fit into memory) file from |
|
|
357 | freenet. C<$meta> is the metadata (as returned by C<parse_metadata> or |
|
|
358 | C<undef>). |
256 | |
359 | |
257 | Due to the overhead, a better method to download big fiels should be used. |
360 | Due to the overhead, a better method to download big files should be used. |
258 | |
361 | |
259 | my ($data, $meta) = @{ |
362 | my ($meta, $data) = @{ |
260 | $fcp->client_get ( |
363 | $fcp->client_get ( |
261 | "freenet:CHK@hdXaxkwZ9rA8-SidT0AN-bniQlgPAwI,XdCDmBuGsd-ulqbLnZ8v~w" |
364 | "freenet:CHK@hdXaxkwZ9rA8-SidT0AN-bniQlgPAwI,XdCDmBuGsd-ulqbLnZ8v~w" |
262 | ) |
365 | ) |
263 | }; |
366 | }; |
264 | |
367 | |
265 | =cut |
368 | =cut |
266 | |
369 | |
267 | _txn client_get => sub { |
370 | _txn client_get => sub { |
268 | my ($self, $uri, $htl, $removelocal) = @_; |
371 | my ($self, $uri, $htl, $removelocal) = @_; |
269 | |
372 | |
270 | $self->txn (client_get => URI => $uri, hops_to_live => ($htl || 15), remove_local => $removelocal*1); |
373 | $self->txn (client_get => URI => $uri, hops_to_live => ($htl || 15), remove_local_key => $removelocal ? "true" : "false"); |
271 | }; |
374 | }; |
272 | |
375 | |
273 | =item MISSING: ClientPut |
376 | =item MISSING: ClientPut |
274 | |
377 | |
275 | =back |
378 | =back |
… | |
… | |
289 | |
392 | |
290 | =cut |
393 | =cut |
291 | |
394 | |
292 | package Net::FCP::Txn; |
395 | package Net::FCP::Txn; |
293 | |
396 | |
|
|
397 | use Fcntl; |
|
|
398 | use Socket; |
|
|
399 | |
294 | =item new arg => val,... |
400 | =item new arg => val,... |
295 | |
401 | |
296 | Creates a new C<Net::FCP::Txn> object. Not normally used. |
402 | Creates a new C<Net::FCP::Txn> object. Not normally used. |
297 | |
403 | |
298 | =cut |
404 | =cut |
299 | |
405 | |
300 | sub new { |
406 | sub new { |
301 | my $class = shift; |
407 | my $class = shift; |
302 | my $self = bless { @_ }, $class; |
408 | my $self = bless { @_ }, $class; |
|
|
409 | |
|
|
410 | $self->{signal} = $EVENT->new_signal; |
|
|
411 | |
|
|
412 | $self->{fcp}{txn}{$self} = $self; |
303 | |
413 | |
304 | my $attr = ""; |
414 | my $attr = ""; |
305 | my $data = delete $self->{attr}{data}; |
415 | my $data = delete $self->{attr}{data}; |
306 | |
416 | |
307 | while (my ($k, $v) = each %{$self->{attr}}) { |
417 | while (my ($k, $v) = each %{$self->{attr}}) { |
… | |
… | |
313 | $data = "Data\012$data"; |
423 | $data = "Data\012$data"; |
314 | } else { |
424 | } else { |
315 | $data = "EndMessage\012"; |
425 | $data = "EndMessage\012"; |
316 | } |
426 | } |
317 | |
427 | |
318 | my $fh = new IO::Socket::INET |
428 | socket my $fh, PF_INET, SOCK_STREAM, 0 |
319 | PeerHost => $self->{fcp}{host}, |
429 | or Carp::croak "unable to create new tcp socket: $!"; |
320 | PeerPort => $self->{fcp}{port} |
|
|
321 | or Carp::croak "FCP::txn: unable to connect to $self->{fcp}{host}:$self->{fcp}{port}: $!\n"; |
|
|
322 | |
|
|
323 | binmode $fh, ":raw"; |
430 | binmode $fh, ":raw"; |
|
|
431 | fcntl $fh, F_SETFL, O_NONBLOCK; |
|
|
432 | connect $fh, (sockaddr_in $self->{fcp}{port}, inet_aton $self->{fcp}{host}) |
|
|
433 | and !$!{EWOULDBLOCK} |
|
|
434 | and !$!{EINPROGRESS} |
|
|
435 | and Carp::croak "FCP::txn: unable to connect to $self->{fcp}{host}:$self->{fcp}{port}: $!\n"; |
324 | |
436 | |
325 | if (0) { |
437 | $self->{sbuf} = |
326 | print |
438 | "\x00\x00\x00\x02" |
327 | Net::FCP::touc $self->{type}, "\012", |
|
|
328 | $attr, |
|
|
329 | $data, "\012"; |
|
|
330 | } |
|
|
331 | |
|
|
332 | print $fh |
|
|
333 | "\x00\x00", "\x00\x02", # SESSID, PRESID |
|
|
334 | Net::FCP::touc $self->{type}, "\012", |
439 | . Net::FCP::touc $self->{type} |
335 | $attr, |
440 | . "\012$attr$data"; |
336 | $data; |
|
|
337 | |
441 | |
338 | #$fh->shutdown (1); # freenet buggy?, well, it's java... |
442 | #$fh->shutdown (1); # freenet buggy?, well, it's java... |
339 | |
443 | |
340 | $self->{fh} = $fh; |
444 | $self->{fh} = $fh; |
341 | |
445 | |
342 | $Net::FCP::regcb->($self); |
446 | $self->{w} = $EVENT->new_from_fh ($fh)->cb(sub { $self->fh_ready_w })->poll(0, 1, 1); |
343 | |
447 | |
344 | $self; |
448 | $self; |
345 | } |
449 | } |
346 | |
450 | |
|
|
451 | =item $txn = $txn->cb ($coderef) |
|
|
452 | |
|
|
453 | Sets a callback to be called when the request is finished. The coderef |
|
|
454 | will be called with the txn as it's sole argument, so it has to call |
|
|
455 | C<result> itself. |
|
|
456 | |
|
|
457 | Returns the txn object, useful for chaining. |
|
|
458 | |
|
|
459 | Example: |
|
|
460 | |
|
|
461 | $fcp->txn_client_get ("freenet:CHK....") |
|
|
462 | ->userdata ("ehrm") |
|
|
463 | ->cb(sub { |
|
|
464 | my $data = shift->result; |
|
|
465 | }); |
|
|
466 | |
|
|
467 | =cut |
|
|
468 | |
|
|
469 | sub cb($$) { |
|
|
470 | my ($self, $cb) = @_; |
|
|
471 | $self->{cb} = $cb; |
|
|
472 | $self; |
|
|
473 | } |
|
|
474 | |
|
|
475 | =item $txn = $txn->userdata ([$userdata]) |
|
|
476 | |
|
|
477 | Set user-specific data. This is useful in progress callbacks. The data can be accessed |
|
|
478 | using C<< $txn->{userdata} >>. |
|
|
479 | |
|
|
480 | Returns the txn object, useful for chaining. |
|
|
481 | |
|
|
482 | =cut |
|
|
483 | |
|
|
484 | sub userdata($$) { |
|
|
485 | my ($self, $data) = @_; |
|
|
486 | $self->{userdata} = $data; |
|
|
487 | $self; |
|
|
488 | } |
|
|
489 | |
347 | sub fh_ready { |
490 | sub fh_ready_w { |
|
|
491 | my ($self) = @_; |
|
|
492 | |
|
|
493 | my $len = syswrite $self->{fh}, $self->{sbuf}; |
|
|
494 | |
|
|
495 | if ($len > 0) { |
|
|
496 | substr $self->{sbuf}, 0, $len, ""; |
|
|
497 | unless (length $self->{sbuf}) { |
|
|
498 | fcntl $self->{fh}, F_SETFL, 0; |
|
|
499 | $self->{w}->cb(sub { $self->fh_ready_r })->poll (1, 0, 1); |
|
|
500 | } |
|
|
501 | } elsif (defined $len) { |
|
|
502 | $self->throw (Net::FCP::Exception->new (network_error => { reason => "unexpected end of file while writing" })); |
|
|
503 | } else { |
|
|
504 | $self->throw (Net::FCP::Exception->new (network_error => { reason => "$!" })); |
|
|
505 | } |
|
|
506 | } |
|
|
507 | |
|
|
508 | sub fh_ready_r { |
348 | my ($self) = @_; |
509 | my ($self) = @_; |
349 | |
510 | |
350 | if (sysread $self->{fh}, $self->{buf}, 65536, length $self->{buf}) { |
511 | if (sysread $self->{fh}, $self->{buf}, 65536, length $self->{buf}) { |
351 | for (;;) { |
512 | for (;;) { |
352 | if ($self->{datalen}) { |
513 | if ($self->{datalen}) { |
|
|
514 | #warn "expecting new datachunk $self->{datalen}, got ".(length $self->{buf})."\n";#d# |
353 | if (length $self->{buf} >= $self->{datalen}) { |
515 | if (length $self->{buf} >= $self->{datalen}) { |
354 | $self->rcv_data (substr $self->{buf}, 0, $self->{datalen}, ""); |
516 | $self->rcv_data (substr $self->{buf}, 0, delete $self->{datalen}, ""); |
355 | } else { |
517 | } else { |
356 | last; |
518 | last; |
357 | } |
519 | } |
358 | } elsif ($self->{buf} =~ s/^DataChunk\015?\012Length=([0-9a-fA-F]+)\015?\012Data\015?\012//) { |
520 | } elsif ($self->{buf} =~ s/^DataChunk\015?\012Length=([0-9a-fA-F]+)\015?\012Data\015?\012//) { |
359 | $self->{datalen} = hex $1; |
521 | $self->{datalen} = hex $1; |
|
|
522 | #warn "expecting new datachunk $self->{datalen}\n";#d# |
360 | } elsif ($self->{buf} =~ s/^([a-zA-Z]+)\015?\012(.*?)\015?\012EndMessage\015?\012//s) { |
523 | } elsif ($self->{buf} =~ s/^([a-zA-Z]+)\015?\012(?:(.+?)\015?\012)?EndMessage\015?\012//s) { |
361 | $self->rcv ($1, { |
524 | $self->rcv ($1, { |
362 | map { my ($a, $b) = split /=/, $_, 2; ((Net::FCP::tolc $a), $b) } |
525 | map { my ($a, $b) = split /=/, $_, 2; ((Net::FCP::tolc $a), $b) } |
363 | split /\015?\012/, $2 |
526 | split /\015?\012/, $2 |
364 | }); |
527 | }); |
365 | } else { |
528 | } else { |
366 | last; |
529 | last; |
367 | } |
530 | } |
368 | } |
531 | } |
369 | } else { |
532 | } else { |
370 | $Net::FCP::unregcb->($self); |
|
|
371 | delete $self->{fh}; |
|
|
372 | $self->eof; |
533 | $self->eof; |
373 | } |
534 | } |
374 | } |
535 | } |
375 | |
536 | |
376 | sub rcv_data { |
537 | sub rcv_data { |
377 | my ($self, $chunk) = @_; |
538 | my ($self, $chunk) = @_; |
378 | |
539 | |
379 | $self->{data} .= $chunk; |
540 | $self->{data} .= $chunk; |
|
|
541 | |
|
|
542 | $self->progress ("data", { chunk => length $chunk, total => length $self->{data}, end => $self->{datalength} }); |
380 | } |
543 | } |
381 | |
544 | |
382 | sub rcv { |
545 | sub rcv { |
383 | my ($self, $type, $attr) = @_; |
546 | my ($self, $type, $attr) = @_; |
384 | |
547 | |
… | |
… | |
391 | } else { |
554 | } else { |
392 | warn "received unexpected reply type '$type' for '$self->{type}', ignoring\n"; |
555 | warn "received unexpected reply type '$type' for '$self->{type}', ignoring\n"; |
393 | } |
556 | } |
394 | } |
557 | } |
395 | |
558 | |
|
|
559 | # used as a default exception thrower |
|
|
560 | sub rcv_throw_exception { |
|
|
561 | my ($self, $attr, $type) = @_; |
|
|
562 | $self->throw (Net::FCP::Exception->new ($type, $attr)); |
|
|
563 | } |
|
|
564 | |
|
|
565 | *rcv_failed = \&Net::FCP::Txn::rcv_throw_exception; |
|
|
566 | *rcv_format_error = \&Net::FCP::Txn::rcv_throw_exception; |
|
|
567 | |
|
|
568 | sub throw { |
|
|
569 | my ($self, $exc) = @_; |
|
|
570 | |
|
|
571 | $self->{exception} = $exc; |
|
|
572 | $self->set_result (1); |
|
|
573 | $self->eof; # must be last to avoid loops |
|
|
574 | } |
|
|
575 | |
396 | sub set_result { |
576 | sub set_result { |
397 | my ($self, $result) = @_; |
577 | my ($self, $result) = @_; |
398 | |
578 | |
399 | $self->{result} = $result unless exists $self->{result}; |
579 | unless (exists $self->{result}) { |
|
|
580 | $self->{result} = $result; |
|
|
581 | $self->{cb}->($self) if exists $self->{cb}; |
|
|
582 | $self->{signal}->send; |
|
|
583 | } |
400 | } |
584 | } |
401 | |
585 | |
402 | sub eof { |
586 | sub eof { |
403 | my ($self) = @_; |
587 | my ($self) = @_; |
404 | $self->set_result; |
588 | |
|
|
589 | delete $self->{w}; |
|
|
590 | delete $self->{fh}; |
|
|
591 | |
|
|
592 | delete $self->{fcp}{txn}{$self}; |
|
|
593 | |
|
|
594 | $self->set_result; # just in case |
|
|
595 | } |
|
|
596 | |
|
|
597 | sub progress { |
|
|
598 | my ($self, $type, $attr) = @_; |
|
|
599 | $self->{fcp}->progress ($self, $type, $attr); |
405 | } |
600 | } |
406 | |
601 | |
407 | =item $result = $txn->result |
602 | =item $result = $txn->result |
408 | |
603 | |
409 | Waits until a result is available and then returns it. |
604 | Waits until a result is available and then returns it. |
… | |
… | |
414 | =cut |
609 | =cut |
415 | |
610 | |
416 | sub result { |
611 | sub result { |
417 | my ($self) = @_; |
612 | my ($self) = @_; |
418 | |
613 | |
419 | $Net::FCP::waitcb->() while !exists $self->{result}; |
614 | $self->{signal}->wait while !exists $self->{result}; |
|
|
615 | |
|
|
616 | die $self->{exception} if $self->{exception}; |
420 | |
617 | |
421 | return $self->{result}; |
618 | return $self->{result}; |
422 | } |
|
|
423 | |
|
|
424 | sub DESTROY { |
|
|
425 | $Net::FCP::unregcb->($_[0]); |
|
|
426 | } |
619 | } |
427 | |
620 | |
428 | package Net::FCP::Txn::ClientHello; |
621 | package Net::FCP::Txn::ClientHello; |
429 | |
622 | |
430 | use base Net::FCP::Txn; |
623 | use base Net::FCP::Txn; |
… | |
… | |
483 | my ($self, $attr) = @_; |
676 | my ($self, $attr) = @_; |
484 | |
677 | |
485 | $self->set_result ($attr->{Length}); |
678 | $self->set_result ($attr->{Length}); |
486 | } |
679 | } |
487 | |
680 | |
|
|
681 | package Net::FCP::Txn::GetPut; |
|
|
682 | |
|
|
683 | # base class for get and put |
|
|
684 | |
|
|
685 | use base Net::FCP::Txn; |
|
|
686 | |
|
|
687 | *rcv_uri_error = \&Net::FCP::Txn::rcv_throw_exception; |
|
|
688 | *rcv_route_not_found = \&Net::FCP::Txn::rcv_throw_exception; |
|
|
689 | |
|
|
690 | sub rcv_restarted { |
|
|
691 | my ($self, $attr, $type) = @_; |
|
|
692 | |
|
|
693 | delete $self->{datalength}; |
|
|
694 | delete $self->{metalength}; |
|
|
695 | delete $self->{data}; |
|
|
696 | |
|
|
697 | $self->progress ($type, $attr); |
|
|
698 | } |
|
|
699 | |
488 | package Net::FCP::Txn::ClientGet; |
700 | package Net::FCP::Txn::ClientGet; |
489 | |
701 | |
490 | use base Net::FCP::Txn; |
702 | use base Net::FCP::Txn::GetPut; |
|
|
703 | |
|
|
704 | *rcv_data_not_found = \&Net::FCP::Txn::rcv_throw_exception; |
491 | |
705 | |
492 | sub rcv_data_found { |
706 | sub rcv_data_found { |
493 | my ($self, $attr) = @_; |
707 | my ($self, $attr, $type) = @_; |
|
|
708 | |
|
|
709 | $self->progress ($type, $attr); |
494 | |
710 | |
495 | $self->{datalength} = hex $attr->{data_length}; |
711 | $self->{datalength} = hex $attr->{data_length}; |
496 | $self->{metalength} = hex $attr->{meta_data_length}; |
712 | $self->{metalength} = hex $attr->{metadata_length}; |
497 | } |
713 | } |
498 | |
714 | |
499 | sub eof { |
715 | sub eof { |
500 | my ($self) = @_; |
716 | my ($self) = @_; |
501 | #use PApp::Util; warn PApp::Util::dumpval $self; |
717 | |
|
|
718 | if ($self->{datalength} == length $self->{data}) { |
502 | my $data = delete $self->{data}; |
719 | my $data = delete $self->{data}; |
|
|
720 | my $meta = Net::FCP::parse_metadata substr $data, 0, $self->{metalength}, ""; |
|
|
721 | |
|
|
722 | $self->set_result ([$meta, $data]); |
|
|
723 | } elsif (!exists $self->{result}) { |
|
|
724 | $self->throw (Net::FCP::Exception->new (short_data => { |
|
|
725 | reason => "unexpected eof or internal node error", |
|
|
726 | received => length $self->{data}, |
|
|
727 | expected => $self->{datalength}, |
|
|
728 | })); |
|
|
729 | } |
|
|
730 | } |
|
|
731 | |
|
|
732 | package Net::FCP::Txn::ClientPut; |
|
|
733 | |
|
|
734 | use base Net::FCP::Txn::GetPut; |
|
|
735 | |
|
|
736 | *rcv_size_error = \&Net::FCP::Txn::rcv_throw_exception; |
|
|
737 | *rcv_key_collision = \&Net::FCP::Txn::rcv_throw_exception; |
|
|
738 | |
|
|
739 | sub rcv_pending { |
|
|
740 | my ($self, $attr, $type) = @_; |
|
|
741 | $self->progress ($type, $attr); |
|
|
742 | } |
|
|
743 | |
|
|
744 | sub rcv_success { |
|
|
745 | my ($self, $attr, $type) = @_; |
503 | $self->set_result ([ |
746 | $self->set_result ($attr); |
504 | (substr $data, 0, $self->{datalength}-$self->{metalength}), |
747 | } |
505 | (substr $data, $self->{datalength}-$self->{metalength}), |
748 | |
506 | ]); |
749 | package Net::FCP::Exception; |
|
|
750 | |
|
|
751 | use overload |
|
|
752 | '""' => sub { |
|
|
753 | "Net::FCP::Exception<<$_[0][0]," . (join ":", %{$_[0][1]}) . ">>\n"; |
|
|
754 | }; |
|
|
755 | |
|
|
756 | sub new { |
|
|
757 | my ($class, $type, $attr) = @_; |
|
|
758 | |
|
|
759 | bless [Net::FCP::tolc $type, { %$attr }], $class; |
507 | } |
760 | } |
508 | |
761 | |
509 | =back |
762 | =back |
510 | |
763 | |
511 | =head1 SEE ALSO |
764 | =head1 SEE ALSO |