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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.23 by root, Wed Jul 19 22:19:19 2006 UTC vs.
Revision 1.39 by root, Fri Aug 25 13:24:50 2006 UTC

… …
5use Storable; 5use Storable;
6use Opcode; 6use Opcode;
7use Safe; 7use Safe;
8use Safe::Hole; 8use Safe::Hole;
9 9
10use Time::HiRes;
10use Event; 11use Event;
11$Event::Eval = 1; # no idea why this is required, but it is 12$Event::Eval = 1; # no idea why this is required, but it is
12 13
13use strict; 14use strict;
14 15
15our %COMMAND; 16our %COMMAND = ();
16our @EVENT; 17our @EVENT;
18our @PLUGIN_EVENT;
17our %PROP_TYPE; 19our %PROP_TYPE;
18our %PROP_IDX; 20our %PROP_IDX;
21our $LIBDIR = maps_directory "perl";
22
23our $TICK = MAX_TIME * 1e-6;
24our $TICK_WATCHER;
25our $NEXT_TICK;
19 26
20BEGIN { 27BEGIN {
21 @EVENT = map lc, @EVENT; 28 @PLUGIN_EVENT = map lc, @PLUGIN_EVENT;
22 29
23 *CORE::GLOBAL::warn = sub { 30 *CORE::GLOBAL::warn = sub {
24 my $msg = join "", @_; 31 my $msg = join "", @_;
25 $msg .= "\n" 32 $msg .= "\n"
26 unless $msg =~ /\n$/; 33 unless $msg =~ /\n$/;
… …
64prop_gen MAP_PROP => "cf::map"; 71prop_gen MAP_PROP => "cf::map";
65prop_gen ARCH_PROP => "cf::arch"; 72prop_gen ARCH_PROP => "cf::arch";
66 73
67# guessed hierarchies 74# guessed hierarchies
68 75
69@cf::object::player::ISA = 'cf::object'; 76@ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
70@cf::object::map::ISA = 'cf::object'; 77@ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object';
78
79# we bless all objects into derived classes to force a method lookup
80# within the Safe compartment.
81for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {
82 no strict 'refs';
83 @{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
84}
71 85
72$Event::DIED = sub { 86$Event::DIED = sub {
73 warn "error in event callback: @_"; 87 warn "error in event callback: @_";
74}; 88};
75 89
… …
77my @exts; 91my @exts;
78my @hook; 92my @hook;
79my %command; 93my %command;
80my %extcmd; 94my %extcmd;
81 95
96#############################################################################
97# "new" plug-in system
98
99=item cf::object::attach ... # NYI
100
101=item cf::attach_global ... # NYI
102
103=item cf::attach_to_type ... # NYI
104
105=item cf::attach_to_objects ... # NYI
106
107=item cf::attach_to_players ... # NYI
108
109=item cf::attach_to_maps ... # NYI
110
111 prio => $number, # higehr is earlier
112 on_xxx => \&cb,
113 package => package::,
114
115=cut
116
117our %CB_CLASS = (); # registry for class-based events
118our @CB_GLOBAL = (); # registry for all global events
119our @CB_TYPE = (); # registry for type (cf-object class) based events
120
121sub _attach_cb($\%$$$) {
122 my ($registry, $undo, $event, $prio, $cb) = @_;
123
124 use sort 'stable';
125
126 $cb = [$prio, $cb];
127
128 @{$registry->[$event]} = sort
129 { $a->[0] cmp $b->[0] }
130 @{$registry->[$event] || []}, $cb;
131
132 push @{$undo->{cb}}, [$event, $cb];
133}
134
135# attach handles attaching event callbacks
136# the only thing the caller has to do is pass the correct
137# registry (== where the callback attaches to).
138sub _attach(\@$\@) {
139 my ($registry, $klass, $arg) = @_;
140
141 my $prio = 0;
142
143 my %undo = (
144 registry => $registry,
145 cb => [],
146 );
147
148 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
149
150 while (@$arg) {
151 my $type = shift @$arg;
152
153 if ($type eq "prio") {
154 $prio = shift @$arg;
155
156 } elsif ($type eq "package") {
157 my $pkg = shift @$arg;
158
159 while (my ($name, $id) = each %cb_id) {
160 if (my $cb = $pkg->can ($name)) {
161 _attach_cb $registry, %undo, $id, $prio, $cb;
162 }
163 }
164
165 } elsif (exists $cb_id{$type}) {
166 _attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @$arg;
167
168 } elsif (ref $type) {
169 warn "attaching objects not supported, ignoring.\n";
170
171 } else {
172 shift @$arg;
173 warn "attach argument '$type' not supported, ignoring.\n";
174 }
175 }
176
177 \%undo
178}
179
180sub cf::object::attach {
181 die;
182}
183
184sub attach_global {
185 _attach @CB_GLOBAL, KLASS_GLOBAL, @_
186}
187
188sub attach_type {
189 my $type = shift;
190 _attach @{$CB_TYPE[$type]}, KLASS_MAP, @_
191}
192
193sub attach_to_objects {
194 _attach @{$CB_CLASS{cf::object::wrap::}}, KLASS_OBJECT, @_
195}
196
197sub attach_to_players {
198 _attach @{$CB_CLASS{cf::player::wrap::}}, KLASS_PLAYER, @_
199}
200
201sub attach_to_maps {
202 _attach @{$CB_CLASS{cf::map::wrap::}}, KLASS_MAP, @_
203}
204
205our $override;
206
207sub override() {
208 $override = 1
209}
210
211sub invoke {
212 my $event = shift;
213
214 my @cb;
215
216 if (my $ref = ref $_[0]) {
217 # 1. object-specific (NYI)
218 # 2. class-specific
219 push @cb, @{$CB_CLASS{$ref}[$event] || []};
220 }
221
222 # global
223 push @cb, @{$CB_GLOBAL[$event] || []};
224
225# warn "invoke id $EVENT[$event][0], args <@_> <=> @cb\n";#d#
226
227 local $override;
228
229 for (@cb) {
230 eval { &{$_->[1]} };
231
232 if ($@) {
233 warn "$@";
234 warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";
235 override;
236 }
237
238 return 1 if $override;
239 }
240
241 0
242}
243
244#############################################################################
245# old plug-in events
246
82sub inject_event { 247sub inject_event {
83 my $extension = shift; 248 my $extension = shift;
84 my $event_code = shift; 249 my $event_code = shift;
85 250
86 my $cb = $hook[$event_code]{$extension} 251 my $cb = $hook[$event_code]{$extension}
… …
128} 293}
129 294
130sub register { 295sub register {
131 my ($base, $pkg) = @_; 296 my ($base, $pkg) = @_;
132 297
133 for my $idx (0 .. $#EVENT) { 298 for my $idx (0 .. $#PLUGIN_EVENT) {
134 if (my $ref = $pkg->can ("on_$EVENT[$idx]")) { 299 if (my $ref = $pkg->can ("on_$PLUGIN_EVENT[$idx]")) {
135 #warn "registering $EVENT[$idx] hook to '$pkg'\n"; 300 #warn "registering $PLUGIN_EVENT[$idx] hook to '$pkg'\n";
136 $hook[$idx]{$base} = $ref; 301 $hook[$idx]{$base} = $ref;
137 } 302 }
138 } 303 }
139} 304}
140 305
… …
173sub unload_extension { 338sub unload_extension {
174 my ($pkg) = @_; 339 my ($pkg) = @_;
175 340
176 warn "removing extension $pkg\n"; 341 warn "removing extension $pkg\n";
177 342
178 if (my $cb = $pkg->can ("on_unload")) {
179 $cb->($pkg);
180 }
181
182 # remove hooks 343 # remove hooks
183 for my $idx (0 .. $#EVENT) { 344 for my $idx (0 .. $#PLUGIN_EVENT) {
184 delete $hook[$idx]{$pkg}; 345 delete $hook[$idx]{$pkg};
185 } 346 }
186 347
187 # remove commands 348 # remove commands
188 for my $name (keys %command) { 349 for my $name (keys %command) {
… …
200 # remove extcmds 361 # remove extcmds
201 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) { 362 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
202 delete $extcmd{$name}; 363 delete $extcmd{$name};
203 } 364 }
204 365
366 if (my $cb = $pkg->can ("on_unload")) {
367 eval {
368 $cb->($pkg);
369 1
370 } or warn "$pkg unloaded, but with errors: $@";
371 }
372
205 Symbol::delete_package $pkg; 373 Symbol::delete_package $pkg;
206} 374}
207 375
208sub load_extensions { 376sub load_extensions {
209 my $LIBDIR = maps_directory "perl"; 377 my $LIBDIR = maps_directory "perl";
… …
215 1 383 1
216 } or warn "$ext not loaded: $@"; 384 } or warn "$ext not loaded: $@";
217 } 385 }
218} 386}
219 387
388sub _perl_reload(&) {
389 my ($msg) = @_;
390
391 $msg->("reloading...");
392
393 eval {
394 # 1. cancel all watchers
395 $_->cancel for Event::all_watchers;
396
397 # 2. unload all extensions
398 for (@exts) {
399 $msg->("unloading <$_>");
400 unload_extension $_;
401 }
402
403 # 3. unload all modules loaded from $LIBDIR
404 while (my ($k, $v) = each %INC) {
405 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
406
407 $msg->("removing <$k>");
408 delete $INC{$k};
409
410 $k =~ s/\.pm$//;
411 $k =~ s/\//::/g;
412
413 if (my $cb = $k->can ("unload_module")) {
414 $cb->();
415 }
416
417 Symbol::delete_package $k;
418 }
419
420 # 4. get rid of ext::, as good as possible
421 Symbol::delete_package "ext::$_"
422 for qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region);
423
424 # 5. remove register_script_function callbacks
425 # TODO
426
427 # 6. unload cf.pm "a bit"
428 delete $INC{"cf.pm"};
429
430 # don't, removes xs symbols, too
431 #Symbol::delete_package __PACKAGE__;
432
433 # 7. reload cf.pm
434 $msg->("reloading cf.pm");
435 require cf;
436 };
437 $msg->($@) if $@;
438
439 $msg->("reloaded");
440};
441
442sub perl_reload() {
443 _perl_reload {
444 warn $_[0];
445 print "$_[0]\n";
446 };
447}
448
220register_command "perl-reload", 0, sub { 449register_command "perl-reload", 0, sub {
221 my ($who, $arg) = @_; 450 my ($who, $arg) = @_;
222 451
223 if ($who->flag (FLAG_WIZ)) { 452 if ($who->flag (FLAG_WIZ)) {
224 $who->message ("reloading..."); 453 _perl_reload {
225 454 warn $_[0];
226 warn "reloading...\n"; 455 $who->message ($_[0]);
227 eval {
228 $_->cancel for Event::all_watchers;
229
230 unload_extension $_ for @exts;
231 delete $INC{"cf.pm"};
232
233 # don't, removes xs symbols, too
234 #Symbol::delete_package __PACKAGE__;
235
236 require cf;
237 }; 456 };
238 warn $@ if $@;
239 $who->message ($@) if $@;
240 warn "reloaded\n";
241
242 $who->message ("reloaded");
243 } else {
244 $who->message ("Intruder Alert!");
245 } 457 }
246}; 458};
247 459
248############################################################################# 460#############################################################################
461# utility functions
462
463use JSON::Syck (); # TODO# replace by JSON::PC once working
464
465sub from_json($) {
466 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
467 JSON::Syck::Load $_[0]
468}
469
470sub to_json($) {
471 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
472 JSON::Syck::Dump $_[0]
473}
474
475#############################################################################
249# extcmd framework, basically convert ext <id> <pkg> arg1 args 476# extcmd framework, basically convert ext <msg>
250# into pkg::->on_extcmd_arg1 (...) while shortcutting a few 477# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
251 478
252sub on_extcmd { 479sub on_extcmd {
253 my ($pl, $buf) = @_; 480 my ($pl, $buf) = @_;
254 481
255 my ($type) = $buf =~ s/^(\S+) // ? $1 : ""; 482 my $msg = eval { from_json $buf };
256 483
257 $extcmd{$type}[0]->($pl, $buf) 484 if (ref $msg) {
258 if $extcmd{$type}; 485 if (my $cb = $extcmd{$msg->{msgtype}}) {
486 if (my %reply = $cb->[0]->($pl, $msg)) {
487 $pl->ext_reply ($msg->{msgid}, %reply);
488 }
489 }
490 } else {
491 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
492 }
493
494 1
259} 495}
260 496
261############################################################################# 497#############################################################################
262# load/save/clean perl data associated with a map 498# load/save/clean perl data associated with a map
263 499
264*on_mapclean = sub { 500*cf::mapsupport::on_clean = sub {
265 my ($map) = @_; 501 my ($map) = @_;
266 502
267 my $path = $map->tmpname; 503 my $path = $map->tmpname;
268 defined $path or return; 504 defined $path or return;
269 505
270 unlink "$path.cfperl"; 506 unlink "$path.cfperl";
271}; 507};
272 508
273*on_mapin = 509*cf::mapsupport::on_swapin =
274*on_mapload = sub { 510*cf::mapsupport::on_load = sub {
275 my ($map) = @_; 511 my ($map) = @_;
276 512
277 my $path = $map->tmpname; 513 my $path = $map->tmpname;
278 $path = $map->path unless defined $path; 514 $path = $map->path unless defined $path;
279 515
… …
286 or return; # too new 522 or return; # too new
287 523
288 $map->_set_obs ($data->{obs}); 524 $map->_set_obs ($data->{obs});
289}; 525};
290 526
291*on_mapout = sub { 527*cf::mapsupport::on_swapout = sub {
292 my ($map) = @_; 528 my ($map) = @_;
293 529
294 my $path = $map->tmpname; 530 my $path = $map->tmpname;
295 $path = $map->path unless defined $path; 531 $path = $map->path unless defined $path;
296 532
… …
313 } else { 549 } else {
314 unlink "$path.cfperl"; 550 unlink "$path.cfperl";
315 } 551 }
316}; 552};
317 553
554attach_to_maps prio => -10000, package => cf::mapsupport::;
555
318############################################################################# 556#############################################################################
319# load/save perl data associated with player->ob objects 557# load/save perl data associated with player->ob objects
320 558
321*on_player_load = sub { 559sub all_objects(@) {
560 @_, map all_objects ($_->inv), @_
561}
562
563attach_to_players
564 on_load => sub {
322 my ($ob, $path) = @_; 565 my ($pl, $path) = @_;
323 566
324 if (open my $fh, "<:raw", "$path.cfperl") { 567 for my $o (all_objects $pl->ob) {
325
326 #d##TODO#remove
327
328 my $data = Storable::thaw do { local $/; <$fh> };
329
330 $data->{version} <= 1
331 or return; # too new
332
333 %$ob = %{$data->{ob}};
334 return;
335 }
336
337 for my $o ($ob, $ob->inv) {
338 if (my $value = $o->get_ob_key_value ("_perl_data")) { 568 if (my $value = $o->get_ob_key_value ("_perl_data")) {
339 $o->set_ob_key_value ("_perl_data"); 569 $o->set_ob_key_value ("_perl_data");
340 570
341 %$o = %{ Storable::thaw pack "H*", $value }; 571 %$o = %{ Storable::thaw pack "H*", $value };
572 }
342 } 573 }
343 } 574 },
344}; 575 on_save => sub {
345
346*on_player_save = sub {
347 my ($ob, $path) = @_; 576 my ($pl, $path) = @_;
348 577
349 $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_) 578 $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
350 for grep %$_, $ob, $ob->inv; 579 for grep %$_, all_objects $pl->ob;
351 580 },
352 unlink "$path.cfperl";#d##TODO#remove 581;
353};
354 582
355############################################################################# 583#############################################################################
356# core extensions - in perl 584# core extensions - in perl
357 585
358=item cf::player::exists $login 586=item cf::player::exists $login
… …
363 591
364sub cf::player::exists($) { 592sub cf::player::exists($) {
365 cf::player::find $_[0] 593 cf::player::find $_[0]
366 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 594 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
367} 595}
596
597=item $player->reply ($npc, $msg[, $flags])
598
599Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
600can be C<undef>. Does the right thing when the player is currently in a
601dialogue with the given NPC character.
602
603=cut
368 604
369# rough implementation of a future "reply" method that works 605# rough implementation of a future "reply" method that works
370# with dialog boxes. 606# with dialog boxes.
371sub cf::object::player::reply($$$;$) { 607sub cf::object::player::reply($$$;$) {
372 my ($self, $npc, $msg, $flags) = @_; 608 my ($self, $npc, $msg, $flags) = @_;
373 609
374 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 610 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
375 611
612 if ($self->{record_replies}) {
613 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
614 } else {
376 $msg = $npc->name . " says: $msg" if $npc; 615 $msg = $npc->name . " says: $msg" if $npc;
377
378 $self->message ($msg, $flags); 616 $self->message ($msg, $flags);
617 }
618}
619
620=item $player->ext_reply ($msgid, $msgtype, %msg)
621
622Sends an ext reply to the player.
623
624=cut
625
626sub cf::player::ext_reply($$$%) {
627 my ($self, $id, %msg) = @_;
628
629 $msg{msgid} = $id;
630
631 $self->send ("ext " . to_json \%msg);
379} 632}
380 633
381############################################################################# 634#############################################################################
382# map scripting support 635# map scripting support
383 636
… …
386 639
387$SIG{FPE} = 'IGNORE'; 640$SIG{FPE} = 'IGNORE';
388 641
389$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 642$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
390 643
391# here we would export the classes and methods available to script code 644# here we export the classes and methods available to script code
392#@ext::cf::object::player::ISA = @cf::object::player::ISA; 645
393#@ext::cf::object::map::ISA = @cf::object::map::ISA; 646for (
647 ["cf::object" => qw(contr pay_amount pay_player)],
648 ["cf::object::player" => qw(player)],
649 ["cf::player" => qw(peaceful)],
650) {
651 no strict 'refs';
652 my ($pkg, @funs) = @$_;
653 *{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
654 for @funs;
655}
394 656
395sub safe_eval($;@) { 657sub safe_eval($;@) {
396 my ($code, %vars) = @_; 658 my ($code, %vars) = @_;
397 659
398 my $qcode = $code; 660 my $qcode = $code;
… …
400 $qcode =~ s/\n/\\n/g; 662 $qcode =~ s/\n/\\n/g;
401 663
402 local $_; 664 local $_;
403 local @ext::cf::_safe_eval_args = values %vars; 665 local @ext::cf::_safe_eval_args = values %vars;
404 666
405 $safe->reval ( 667 $code =
406 "do {\n" 668 "do {\n"
407 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" 669 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
408 . "#line 0 \"{$qcode}\"\n" 670 . "#line 0 \"{$qcode}\"\n"
409 . $code 671 . $code
410 . "\n}" 672 . "\n}"
411 ) 673 ;
674
675 sub_generation_inc;
676 my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code);
677 sub_generation_inc;
678
679 wantarray ? @res : $res[0]
412} 680}
413 681
414sub register_script_function { 682sub register_script_function {
415 my ($fun, $cb) = @_; 683 my ($fun, $cb) = @_;
416 684
417 no strict 'refs'; 685 no strict 'refs';
418 *{"ext::$fun"} = $safe_hole->wrap ($cb); 686 *{"ext::$fun"} = $safe_hole->wrap ($cb);
419} 687}
420 688
421############################################################################# 689#############################################################################
690# the server's main()
691
692sub main {
693 Event::loop;
694}
695
696#############################################################################
422# initialisation 697# initialisation
423 698
424register "<global>", __PACKAGE__; 699register "<global>", __PACKAGE__;
425 700
426unshift @INC, maps_directory "perl"; 701unshift @INC, $LIBDIR;
427 702
428load_extensions; 703load_extensions;
429 704
705$TICK_WATCHER = Event->timer (
706 prio => 1,
707 at => $NEXT_TICK || 1,
708 cb => sub {
709 cf::server_tick; # one server iteration
710
711 my $NOW = Event::time;
712 $NEXT_TICK += $TICK;
713
714 # if we are delayed by four ticks, skip them all
715 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
716
717 $TICK_WATCHER->at ($NEXT_TICK);
718 $TICK_WATCHER->start;
719 },
720);
721
4301 7221
431 723

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