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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.9 by root, Fri Mar 17 03:22:00 2006 UTC vs.
Revision 1.51 by root, Mon Aug 28 14:05:24 2006 UTC

1package cf; 1package cf;
2 2
3use Symbol; 3use Symbol;
4use List::Util; 4use List::Util;
5use Storable; 5use Storable;
6use Opcode;
7use Safe;
8use Safe::Hole;
9
10use Time::HiRes;
11use Event;
12$Event::Eval = 1; # no idea why this is required, but it is
6 13
7use strict; 14use strict;
8 15
16_reload_1;
17
9our %COMMAND; 18our %COMMAND = ();
10our @EVENT; 19our @EVENT;
11our %PROP_TYPE; 20our %PROP_TYPE;
12our %PROP_IDX; 21our %PROP_IDX;
22our $LIBDIR = maps_directory "perl";
23
24our $TICK = MAX_TIME * 1e-6;
25our $TICK_WATCHER;
26our $NEXT_TICK;
13 27
14BEGIN { 28BEGIN {
15 @EVENT = map lc, @EVENT;
16
17 *CORE::GLOBAL::warn = sub { 29 *CORE::GLOBAL::warn = sub {
18 my $msg = join "", @_; 30 my $msg = join "", @_;
19 $msg .= "\n" 31 $msg .= "\n"
20 unless $msg =~ /\n$/; 32 unless $msg =~ /\n$/;
21 33
56prop_gen PLAYER_PROP => "cf::object::player"; 68prop_gen PLAYER_PROP => "cf::object::player";
57 69
58prop_gen MAP_PROP => "cf::map"; 70prop_gen MAP_PROP => "cf::map";
59prop_gen ARCH_PROP => "cf::arch"; 71prop_gen ARCH_PROP => "cf::arch";
60 72
61# guessed hierarchies 73@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
62 74
63@cf::object::player::ISA = 'cf::object'; 75# we bless all objects into (empty) derived classes to force a method lookup
64@cf::object::map::ISA = 'cf::object'; 76# within the Safe compartment.
77for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {
78 no strict 'refs';
79 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80}
81
82$Event::DIED = sub {
83 warn "error in event callback: @_";
84};
65 85
66my %ext_pkg; 86my %ext_pkg;
67my @exts; 87my @exts;
68my @hook; 88my @hook;
69my %command; 89my %command;
90my %extcmd;
91
92#############################################################################
93# utility functions
94
95use JSON::Syck (); # TODO# replace by JSON::PC once working
96
97sub from_json($) {
98 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99 JSON::Syck::Load $_[0]
100}
101
102sub to_json($) {
103 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104 JSON::Syck::Dump $_[0]
105}
106
107#############################################################################
108# "new" plug-in system
109
110=item $object->attach ($attachment, key => $value...)
111
112Attach a pre-registered attachment to an object.
113
114=item $player->attach ($attachment, key => $value...)
115
116Attach a pre-registered attachment to a player.
117
118=item $map->attach ($attachment, key => $value...) # not yet persistent
119
120Attach a pre-registered attachment to a map.
121
122=item cf::attach_global ...
123
124Attach handlers for global events.
125
126This and all following C<attach_*>-functions expect any number of the
127following handler/hook descriptions:
128
129=over 4
130
131=item prio => $number
132
133Set the priority for all following handlers/hooks (unless overwritten
134by another C<prio> setting). Lower priority handlers get executed
135earlier. The default priority is C<0>, and many built-in handlers are
136registered at priority C<-1000>, so lower priorities should not be used
137unless you know what you are doing.
138
139=item on_I<event> => \&cb
140
141Call the given code reference whenever the named event happens (event is
142something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
143handlers are recognised generally depends on the type of object these
144handlers attach to).
145
146See F<include/eventinc.h> for the full list of events supported, and their
147class.
148
149=item package => package::
150
151Look for sub functions of the name C<< on_I<event> >> in the given
152package and register them. Only handlers for eevents supported by the
153object/class are recognised.
154
155=back
156
157=item cf::attach_to_type $object_type, $subtype, ...
158
159Attach handlers for a specific object type (e.g. TRANSPORT) and
160subtype. If C<$subtype> is zero or undef, matches all objects of the given
161type.
162
163=item cf::attach_to_objects ...
164
165Attach handlers to all objects. Do not use this except for debugging or
166very rare events, as handlers are (obviously) called for I<all> objects in
167the game.
168
169=item cf::attach_to_players ...
170
171Attach handlers to all players.
172
173=item cf::attach_to_maps ...
174
175Attach handlers to all maps.
176
177=item cf:register_attachment $name, ...
178
179=cut
180
181# the following variables are defined in .xs and must not be re-created
182our @CB_GLOBAL = (); # registry for all global events
183our @CB_OBJECT = (); # all objects (should not be used except in emergency)
184our @CB_PLAYER = ();
185our @CB_TYPE = (); # registry for type (cf-object class) based events
186our @CB_MAP = ();
187
188my %attachment;
189
190sub _attach_cb($\%$$$) {
191 my ($registry, $undo, $event, $prio, $cb) = @_;
192
193 use sort 'stable';
194
195 $cb = [$prio, $cb];
196
197 @{$registry->[$event]} = sort
198 { $a->[0] cmp $b->[0] }
199 @{$registry->[$event] || []}, $cb;
200
201 push @{$undo->{cb}}, [$event, $cb];
202}
203
204# attach handles attaching event callbacks
205# the only thing the caller has to do is pass the correct
206# registry (== where the callback attaches to).
207sub _attach(\@$@) {
208 my ($registry, $klass, @arg) = @_;
209
210 my $prio = 0;
211
212 my %undo = (
213 registry => $registry,
214 cb => [],
215 );
216
217 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
218
219 while (@arg) {
220 my $type = shift @arg;
221
222 if ($type eq "prio") {
223 $prio = shift @arg;
224
225 } elsif ($type eq "package") {
226 my $pkg = shift @arg;
227
228 while (my ($name, $id) = each %cb_id) {
229 if (my $cb = $pkg->can ($name)) {
230 _attach_cb $registry, %undo, $id, $prio, $cb;
231 }
232 }
233
234 } elsif (exists $cb_id{$type}) {
235 _attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
236
237 } elsif (ref $type) {
238 warn "attaching objects not supported, ignoring.\n";
239
240 } else {
241 shift @arg;
242 warn "attach argument '$type' not supported, ignoring.\n";
243 }
244 }
245
246 \%undo
247}
248
249sub _attach_attachment {
250 my ($obj, $name, %arg) = @_;
251
252 my $res;
253
254 if (my $attach = $attachment{$name}) {
255 my $registry = $obj->registry;
256
257 for (@$attach) {
258 my ($klass, @attach) = @$_;
259 $res = _attach @$registry, $klass, @attach;
260 }
261
262 $obj->{$name} = \%arg;
263 } else {
264 warn "object uses attachment '$name' that is not available, postponing.\n";
265 }
266
267 $obj->{_attachment}{$name} = undef;
268
269 $res->{attachment} = $name;
270 $res
271}
272
273sub cf::object::attach {
274 my ($obj, $name, %arg) = @_;
275
276 _attach_attachment $obj, $name, %arg;
277}
278
279sub cf::player::attach {
280 my ($obj, $name, %arg) = @_;
281
282 _attach_attachment KLASS_PLAYER, $obj, $name, %arg;
283}
284
285sub cf::map::attach {
286 my ($obj, $name, %arg) = @_;
287
288 _attach_attachment KLASS_MAP, $obj, $name, %arg;
289}
290
291sub attach_global {
292 _attach @CB_GLOBAL, KLASS_GLOBAL, @_
293}
294
295sub attach_to_type {
296 my $type = shift;
297 my $subtype = shift;
298
299 _attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
300}
301
302sub attach_to_objects {
303 _attach @CB_OBJECT, KLASS_OBJECT, @_
304}
305
306sub attach_to_players {
307 _attach @CB_PLAYER, KLASS_PLAYER, @_
308}
309
310sub attach_to_maps {
311 _attach @CB_MAP, KLASS_MAP, @_
312}
313
314sub register_attachment {
315 my $name = shift;
316
317 $attachment{$name} = [[KLASS_OBJECT, @_]];
318}
319
320our $override;
321our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
322
323sub override {
324 $override = 1;
325 @invoke_results = ();
326}
327
328sub do_invoke {
329 my $event = shift;
330 my $callbacks = shift;
331
332 @invoke_results = ();
333
334 local $override;
335
336 for (@$callbacks) {
337 eval { &{$_->[1]} };
338
339 if ($@) {
340 warn "$@";
341 warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";
342 override;
343 }
344
345 return 1 if $override;
346 }
347
348 0
349}
350
351#############################################################################
352# object support
353
354sub instantiate {
355 my ($obj, $data) = @_;
356
357 $data = from_json $data;
358
359 for (@$data) {
360 my ($name, $args) = @$_;
361
362 $obj->attach ($name, %{$args || {} });
363 }
364}
365
366# basically do the same as instantiate, without calling instantiate
367sub reattach {
368 my ($obj) = @_;
369 my $registry = $obj->registry;
370
371 @$registry = ();
372
373 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
374
375 for my $name (keys %{ $obj->{_attachment} || {} }) {
376 if (my $attach = $attachment{$name}) {
377 for (@$attach) {
378 my ($klass, @attach) = @$_;
379 _attach @$registry, $klass, @attach;
380 }
381 } else {
382 warn "object uses attachment '$name' that is not available, postponing.\n";
383 }
384 }
385}
386
387sub object_freezer_save {
388 my ($filename, $objs) = @_;
389
390 if (@$objs) {
391 open my $fh, ">:raw", "$filename.pst~";
392 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
393 close $fh;
394 chmod SAVE_MODE, "$filename.pst~";
395 rename "$filename.pst~", "$filename.pst";
396 } else {
397 unlink "$filename.pst";
398 }
399
400 chmod SAVE_MODE, "$filename~";
401 rename "$filename~", $filename;
402}
403
404sub object_thawer_load {
405 my ($filename) = @_;
406
407 open my $fh, "<:raw:perlio", "$filename.pst"
408 or return;
409
410 eval { local $/; (Storable::thaw <$fh>)->{objs} }
411}
412
413attach_to_objects
414 prio => -1000000,
415 on_clone => sub {
416 my ($src, $dst) = @_;
417
418 @{$dst->registry} = @{$src->registry};
419
420 %$dst = %$src;
421
422 %{$dst->{_attachment}} = %{$src->{_attachment}}
423 if exists $src->{_attachment};
424 },
425;
426
427#############################################################################
428# old plug-in events
70 429
71sub inject_event { 430sub inject_event {
72 my ($data) = @_; 431 my $extension = shift;
432 my $event_code = shift;
73 433
74 my $cb = $hook[$data->{event_code}]{$data->{extension}} 434 my $cb = $hook[$event_code]{$extension}
75 or return; 435 or return;
76 436
77 $cb->($data) 437 &$cb
78} 438}
79 439
80sub inject_global_event { 440sub inject_global_event {
81 my ($data) = @_; 441 my $event = shift;
82 442
83 my $cb = $hook[$data->{event_code}] 443 my $cb = $hook[$event]
84 or return; 444 or return;
85 445
86 $_->($data) for values %$cb; 446 List::Util::max map &$_, values %$cb
87
88 ()
89} 447}
90 448
91sub inject_command { 449sub inject_command {
92 my ($name, $obj, $params) = @_; 450 my ($name, $obj, $params) = @_;
93 451
100 458
101sub register_command { 459sub register_command {
102 my ($name, $time, $cb) = @_; 460 my ($name, $time, $cb) = @_;
103 461
104 my $caller = caller; 462 my $caller = caller;
105
106 warn "registering command '$name/$time' to '$caller'"; 463 #warn "registering command '$name/$time' to '$caller'";
107 464
108 push @{ $command{$name} }, [$time, $cb, $caller]; 465 push @{ $command{$name} }, [$time, $cb, $caller];
109 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; 466 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
110} 467}
111 468
469sub register_extcmd {
470 my ($name, $cb) = @_;
471
472 my $caller = caller;
473 #warn "registering extcmd '$name' to '$caller'";
474
475 $extcmd{$name} = [$cb, $caller];
476}
477
112sub register { 478sub register {
113 my ($base, $pkg) = @_; 479 my ($base, $pkg) = @_;
114 480
115 for my $idx (0 .. $#EVENT) { 481 #TODO
116 if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
117 warn "registering $EVENT[$idx] hook to '$pkg'\n";
118 $hook[$idx]{$base} = $ref;
119 }
120 }
121} 482}
122 483
123sub load_extension { 484sub load_extension {
124 my ($path) = @_; 485 my ($path) = @_;
125 486
126 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 487 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
127 my $base = $1; 488 my $base = $1;
128 my $pkg = $1; 489 my $pkg = $1;
129 $pkg =~ s/[^[:word:]]/_/g; 490 $pkg =~ s/[^[:word:]]/_/g;
130 $pkg = "cf::ext::$pkg"; 491 $pkg = "ext::$pkg";
131 492
132 warn "loading '$path' into '$pkg'\n"; 493 warn "loading '$path' into '$pkg'\n";
133 494
134 open my $fh, "<:utf8", $path 495 open my $fh, "<:utf8", $path
135 or die "$path: $!"; 496 or die "$path: $!";
145 506
146 push @exts, $pkg; 507 push @exts, $pkg;
147 $ext_pkg{$base} = $pkg; 508 $ext_pkg{$base} = $pkg;
148 509
149# no strict 'refs'; 510# no strict 'refs';
150# @{"$pkg\::ISA"} = cf::ext::; 511# @{"$pkg\::ISA"} = ext::;
151 512
152 register $base, $pkg; 513 register $base, $pkg;
153} 514}
154 515
155sub unload_extension { 516sub unload_extension {
156 my ($pkg) = @_; 517 my ($pkg) = @_;
157 518
158 warn "removing extension $pkg\n"; 519 warn "removing extension $pkg\n";
159 520
160 # remove hooks 521 # remove hooks
522 #TODO
161 for my $idx (0 .. $#EVENT) { 523# for my $idx (0 .. $#PLUGIN_EVENT) {
162 delete $hook[$idx]{$pkg}; 524# delete $hook[$idx]{$pkg};
163 } 525# }
164 526
165 # remove commands 527 # remove commands
166 for my $name (keys %command) { 528 for my $name (keys %command) {
167 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; 529 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
168 530
173 delete $command{$name}; 535 delete $command{$name};
174 delete $COMMAND{"$name\000"}; 536 delete $COMMAND{"$name\000"};
175 } 537 }
176 } 538 }
177 539
540 # remove extcmds
541 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
542 delete $extcmd{$name};
543 }
544
545 if (my $cb = $pkg->can ("unload")) {
546 eval {
547 $cb->($pkg);
548 1
549 } or warn "$pkg unloaded, but with errors: $@";
550 }
551
178 Symbol::delete_package $pkg; 552 Symbol::delete_package $pkg;
179} 553}
180 554
181sub load_extensions { 555sub load_extensions {
182 my $LIBDIR = maps_directory "perl"; 556 my $LIBDIR = maps_directory "perl";
188 1 562 1
189 } or warn "$ext not loaded: $@"; 563 } or warn "$ext not loaded: $@";
190 } 564 }
191} 565}
192 566
567sub _perl_reload(&) {
568 my ($msg) = @_;
569
570 $msg->("reloading...");
571
572 eval {
573 # 1. cancel all watchers
574 $_->cancel for Event::all_watchers;
575
576 # 2. unload all extensions
577 for (@exts) {
578 $msg->("unloading <$_>");
579 unload_extension $_;
580 }
581
582 # 3. unload all modules loaded from $LIBDIR
583 while (my ($k, $v) = each %INC) {
584 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
585
586 $msg->("removing <$k>");
587 delete $INC{$k};
588
589 $k =~ s/\.pm$//;
590 $k =~ s/\//::/g;
591
592 if (my $cb = $k->can ("unload_module")) {
593 $cb->();
594 }
595
596 Symbol::delete_package $k;
597 }
598
599 # 4. get rid of safe::, as good as possible
600 Symbol::delete_package "safe::$_"
601 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
602
603 # 5. remove register_script_function callbacks
604 # TODO
605
606 # 6. unload cf.pm "a bit"
607 delete $INC{"cf.pm"};
608
609 # don't, removes xs symbols, too,
610 # and global variables created in xs
611 #Symbol::delete_package __PACKAGE__;
612
613 # 7. reload cf.pm
614 $msg->("reloading cf.pm");
615 require cf;
616 };
617 $msg->($@) if $@;
618
619 $msg->("reloaded");
620};
621
622sub perl_reload() {
623 _perl_reload {
624 warn $_[0];
625 print "$_[0]\n";
626 };
627}
628
193register_command "perl-reload", 0, sub { 629register_command "perl-reload", 0, sub {
194 my ($who, $arg) = @_; 630 my ($who, $arg) = @_;
195 631
196 if ($who->flag (FLAG_WIZ)) { 632 if ($who->flag (FLAG_WIZ)) {
197 $who->message ("reloading..."); 633 _perl_reload {
198 634 warn $_[0];
199 warn "reloading...\n"; 635 $who->message ($_[0]);
200 eval {
201 unload_extension $_ for @exts;
202 delete $INC{"cf.pm"};
203
204 # don't, removes xs symbols, too
205 #Symbol::delete_package $pkg;
206
207 require cf;
208 }; 636 };
209 warn $@ if $@;
210 $who->message ($@) if $@;
211 warn "reloaded\n";
212
213 $who->message ("reloaded");
214 } else {
215 $who->message ("Intruder Alert!");
216 } 637 }
217}; 638};
218 639
219############################################################################# 640#############################################################################
641# extcmd framework, basically convert ext <msg>
642# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
643
644attach_to_players
645 on_extcmd => sub {
646 my ($pl, $buf) = @_;
647
648 my $msg = eval { from_json $buf };
649
650 if (ref $msg) {
651 if (my $cb = $extcmd{$msg->{msgtype}}) {
652 if (my %reply = $cb->[0]->($pl, $msg)) {
653 $pl->ext_reply ($msg->{msgid}, %reply);
654 }
655 }
656 } else {
657 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
658 }
659
660 cf::override;
661 },
662;
663
664#############################################################################
220# load/save/clean perl data associated with a map 665# load/save/clean perl data associated with a map
221 666
222*on_mapclean = sub { 667*cf::mapsupport::on_clean = sub {
223 my $map = shift->{map}; 668 my ($map) = @_;
224 669
225 my $path = $map->tmpname; 670 my $path = $map->tmpname;
226 defined $path or return; 671 defined $path or return;
227 672
228 unlink "$path.cfperl"; 673 unlink "$path.pst";
229}; 674};
230 675
231*on_mapin = 676# old style persistent data, TODO: remove #d#
232*on_mapload = sub { 677*cf::mapsupport::on_swapin =
233 my $map = shift->{map}; 678*cf::mapsupport::on_load = sub {
679 my ($map) = @_;
234 680
235 my $path = $map->tmpname; 681 my $path = $map->tmpname;
236 $path = $map->path unless defined $path; 682 $path = $map->path unless defined $path;
237 683
238 open my $fh, "<:raw", "$path.cfperl" 684 open my $fh, "<:raw", "$path.cfperl"
242 688
243 $data->{version} <= 1 689 $data->{version} <= 1
244 or return; # too new 690 or return; # too new
245 691
246 $map->_set_obs ($data->{obs}); 692 $map->_set_obs ($data->{obs});
693 $map->invoke (EVENT_MAP_UPGRADE);
247}; 694};
248 695
249*on_mapout = sub { 696attach_to_maps prio => -10000, package => cf::mapsupport::;
250 my $map = shift->{map};
251 697
252 my $path = $map->tmpname; 698#############################################################################
253 $path = $map->path unless defined $path; 699# load/save perl data associated with player->ob objects
254 700
255 my $obs = $map->_get_obs; 701sub all_objects(@) {
702 @_, map all_objects ($_->inv), @_
703}
256 704
257 if (defined $obs) { 705attach_to_players
258 open my $fh, ">:raw", "$path.cfperl" 706 on_load => sub {
259 or die "$path.cfperl: $!"; 707 my ($pl, $path) = @_;
260 708
261 stat $path; 709 for my $o (all_objects $pl->ob) {
710 if (my $value = $o->get_ob_key_value ("_perl_data")) {
711 $o->set_ob_key_value ("_perl_data");
262 712
263 print $fh Storable::nfreeze { 713 %$o = %{ Storable::thaw pack "H*", $value };
264 size => (stat _)[7], 714 }
265 time => (stat _)[9],
266 version => 1,
267 obs => $obs,
268 }; 715 }
716 },
717;
269 718
270 chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g* 719#############################################################################
720# core extensions - in perl
721
722=item cf::player::exists $login
723
724Returns true when the given account exists.
725
726=cut
727
728sub cf::player::exists($) {
729 cf::player::find $_[0]
730 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
731}
732
733=item $player->reply ($npc, $msg[, $flags])
734
735Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
736can be C<undef>. Does the right thing when the player is currently in a
737dialogue with the given NPC character.
738
739=cut
740
741# rough implementation of a future "reply" method that works
742# with dialog boxes.
743sub cf::object::player::reply($$$;$) {
744 my ($self, $npc, $msg, $flags) = @_;
745
746 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
747
748 if ($self->{record_replies}) {
749 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
271 } else { 750 } else {
272 unlink "$path.cfperl"; 751 $msg = $npc->name . " says: $msg" if $npc;
752 $self->message ($msg, $flags);
753 }
754}
755
756=item $player->ext_reply ($msgid, $msgtype, %msg)
757
758Sends an ext reply to the player.
759
760=cut
761
762sub cf::player::ext_reply($$$%) {
763 my ($self, $id, %msg) = @_;
764
765 $msg{msgid} = $id;
766
767 $self->send ("ext " . to_json \%msg);
768}
769
770#############################################################################
771# map scripting support
772
773our $safe = new Safe "safe";
774our $safe_hole = new Safe::Hole;
775
776$SIG{FPE} = 'IGNORE';
777
778$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
779
780# here we export the classes and methods available to script code
781
782for (
783 ["cf::object" => qw(contr pay_amount pay_player)],
784 ["cf::object::player" => qw(player)],
785 ["cf::player" => qw(peaceful)],
786) {
787 no strict 'refs';
788 my ($pkg, @funs) = @$_;
789 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
790 for @funs;
791}
792
793sub safe_eval($;@) {
794 my ($code, %vars) = @_;
795
796 my $qcode = $code;
797 $qcode =~ s/"/‟/g; # not allowed in #line filenames
798 $qcode =~ s/\n/\\n/g;
799
800 local $_;
801 local @safe::cf::_safe_eval_args = values %vars;
802
803 my $eval =
804 "do {\n"
805 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
806 . "#line 0 \"{$qcode}\"\n"
807 . $code
808 . "\n}"
273 } 809 ;
274};
275 810
276############################################################################# 811 sub_generation_inc;
277# load/save perl data associated with player->ob objects 812 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
813 sub_generation_inc;
278 814
279*on_player_load = sub { 815 if ($@) {
280 my ($event) = @_; 816 warn "$@";
281 my $path = $event->{message}; 817 warn "while executing safe code '$code'\n";
282 my $ob = $event->{who}; 818 warn "with arguments " . (join " ", %vars) . "\n";
283
284 open my $fh, "<:raw", "$path.cfperl"
285 or return; # no perl data
286
287 my $data = Storable::thaw do { local $/; <$fh> };
288
289 $data->{version} <= 1
290 or return; # too new
291
292 %$ob = %{$data->{ob}};
293};
294
295*on_player_save = sub {
296 my ($event) = @_;
297 my $path = $event->{message};
298 my $ob = $event->{who};
299
300 if (keys %$ob) {
301 open my $fh, ">:raw", "$path.cfperl"
302 or die "$path.cfperl: $!";
303
304 stat $path;
305
306 print $fh Storable::nfreeze {
307 size => (stat _)[7],
308 time => (stat _)[9],
309 version => 1,
310 ob => $ob,
311 };
312
313 chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
314 } else {
315 unlink "$path.cfperl";
316 } 819 }
317}; 820
821 wantarray ? @res : $res[0]
822}
823
824sub register_script_function {
825 my ($fun, $cb) = @_;
826
827 no strict 'refs';
828 *{"safe::$fun"} = $safe_hole->wrap ($cb);
829}
830
831#############################################################################
832# the server's main()
833
834sub main {
835 Event::loop;
836}
837
838#############################################################################
839# initialisation
318 840
319register "<global>", __PACKAGE__; 841register "<global>", __PACKAGE__;
320 842
843unshift @INC, $LIBDIR;
844
321load_extensions; 845load_extensions;
322 846
847$TICK_WATCHER = Event->timer (
848 prio => 1,
849 at => $NEXT_TICK || 1,
850 cb => sub {
851 cf::server_tick; # one server iteration
852
853 my $NOW = Event::time;
854 $NEXT_TICK += $TICK;
855
856 # if we are delayed by four ticks, skip them all
857 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
858
859 $TICK_WATCHER->at ($NEXT_TICK);
860 $TICK_WATCHER->start;
861 },
862);
863
864_reload_2;
865
3231 8661
324 867

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