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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.29 by root, Wed Aug 9 10:57:28 2006 UTC vs.
Revision 1.52 by root, Mon Aug 28 16:52:51 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
16_reload_1;
17
15our %COMMAND; 18our %COMMAND = ();
16our @EVENT; 19our @EVENT;
17our %PROP_TYPE; 20our %PROP_TYPE;
18our %PROP_IDX; 21our %PROP_IDX;
19our $LIBDIR = maps_directory "perl"; 22our $LIBDIR = maps_directory "perl";
20 23
24our $TICK = MAX_TIME * 1e-6;
25our $TICK_WATCHER;
26our $NEXT_TICK;
27
21BEGIN { 28BEGIN {
22 @EVENT = map lc, @EVENT;
23
24 *CORE::GLOBAL::warn = sub { 29 *CORE::GLOBAL::warn = sub {
25 my $msg = join "", @_; 30 my $msg = join "", @_;
26 $msg .= "\n" 31 $msg .= "\n"
27 unless $msg =~ /\n$/; 32 unless $msg =~ /\n$/;
28 33
63prop_gen PLAYER_PROP => "cf::object::player"; 68prop_gen PLAYER_PROP => "cf::object::player";
64 69
65prop_gen MAP_PROP => "cf::map"; 70prop_gen MAP_PROP => "cf::map";
66prop_gen ARCH_PROP => "cf::arch"; 71prop_gen ARCH_PROP => "cf::arch";
67 72
68# guessed hierarchies
69
70@ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 73@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
71@ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object';
72 74
73# we bless all objects into derived classes to force a method lookup 75# we bless all objects into (empty) derived classes to force a method lookup
74# within the Safe compartment. 76# within the Safe compartment.
75for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region)) { 77for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {
76 no strict 'refs'; 78 no strict 'refs';
77 @{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 79 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
78} 80}
79 81
80$Event::DIED = sub { 82$Event::DIED = sub {
81 warn "error in event callback: @_"; 83 warn "error in event callback: @_";
82}; 84};
85my @exts; 87my @exts;
86my @hook; 88my @hook;
87my %command; 89my %command;
88my %extcmd; 90my %extcmd;
89 91
92#############################################################################
93# utility functions
94
95use JSON::Syck (); # TODO# replace by JSON::PC once working
96
97sub from_json($) {
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
179Register an attachment by name through which objects can refer to this
180attachment.
181
182=item cf:register_map_attachment $name, ...
183
184Register an attachment by name through which maps can refer to this
185attachment.
186
187=cut
188
189# the following variables are defined in .xs and must not be re-created
190our @CB_GLOBAL = (); # registry for all global events
191our @CB_OBJECT = (); # all objects (should not be used except in emergency)
192our @CB_PLAYER = ();
193our @CB_TYPE = (); # registry for type (cf-object class) based events
194our @CB_MAP = ();
195
196my %attachment;
197
198sub _attach_cb($\%$$$) {
199 my ($registry, $undo, $event, $prio, $cb) = @_;
200
201 use sort 'stable';
202
203 $cb = [$prio, $cb];
204
205 @{$registry->[$event]} = sort
206 { $a->[0] cmp $b->[0] }
207 @{$registry->[$event] || []}, $cb;
208
209 push @{$undo->{cb}}, [$event, $cb];
210}
211
212# attach handles attaching event callbacks
213# the only thing the caller has to do is pass the correct
214# registry (== where the callback attaches to).
215sub _attach(\@$@) {
216 my ($registry, $klass, @arg) = @_;
217
218 my $prio = 0;
219
220 my %undo = (
221 registry => $registry,
222 cb => [],
223 );
224
225 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
226
227 while (@arg) {
228 my $type = shift @arg;
229
230 if ($type eq "prio") {
231 $prio = shift @arg;
232
233 } elsif ($type eq "package") {
234 my $pkg = shift @arg;
235
236 while (my ($name, $id) = each %cb_id) {
237 if (my $cb = $pkg->can ($name)) {
238 _attach_cb $registry, %undo, $id, $prio, $cb;
239 }
240 }
241
242 } elsif (exists $cb_id{$type}) {
243 _attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
244
245 } elsif (ref $type) {
246 warn "attaching objects not supported, ignoring.\n";
247
248 } else {
249 shift @arg;
250 warn "attach argument '$type' not supported, ignoring.\n";
251 }
252 }
253
254 \%undo
255}
256
257sub _attach_attachment {
258 my ($obj, $name, %arg) = @_;
259
260 my $res;
261
262 if (my $attach = $attachment{$name}) {
263 my $registry = $obj->registry;
264
265 for (@$attach) {
266 my ($klass, @attach) = @$_;
267 $res = _attach @$registry, $klass, @attach;
268 }
269
270 $obj->{$name} = \%arg;
271 } else {
272 warn "object uses attachment '$name' that is not available, postponing.\n";
273 }
274
275 $obj->{_attachment}{$name} = undef;
276
277 $res->{attachment} = $name;
278 $res
279}
280
281sub cf::object::attach {
282 my ($obj, $name, %arg) = @_;
283
284 _attach_attachment $obj, $name, %arg;
285}
286
287sub cf::player::attach {
288 my ($obj, $name, %arg) = @_;
289
290 _attach_attachment $obj, $name, %arg;
291}
292
293sub cf::map::attach {
294 my ($obj, $name, %arg) = @_;
295
296 _attach_attachment $obj, $name, %arg;
297}
298
299sub attach_global {
300 _attach @CB_GLOBAL, KLASS_GLOBAL, @_
301}
302
303sub attach_to_type {
304 my $type = shift;
305 my $subtype = shift;
306
307 _attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
308}
309
310sub attach_to_objects {
311 _attach @CB_OBJECT, KLASS_OBJECT, @_
312}
313
314sub attach_to_players {
315 _attach @CB_PLAYER, KLASS_PLAYER, @_
316}
317
318sub attach_to_maps {
319 _attach @CB_MAP, KLASS_MAP, @_
320}
321
322sub register_attachment {
323 my $name = shift;
324
325 $attachment{$name} = [[KLASS_OBJECT, @_]];
326}
327
328sub register_map_attachment {
329 my $name = shift;
330
331 $attachment{$name} = [[KLASS_MAP, @_]];
332}
333
334our $override;
335our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
336
337sub override {
338 $override = 1;
339 @invoke_results = ();
340}
341
342sub do_invoke {
343 my $event = shift;
344 my $callbacks = shift;
345
346 @invoke_results = ();
347
348 local $override;
349
350 for (@$callbacks) {
351 eval { &{$_->[1]} };
352
353 if ($@) {
354 warn "$@";
355 warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";
356 override;
357 }
358
359 return 1 if $override;
360 }
361
362 0
363}
364
365#############################################################################
366# object support
367
368sub instantiate {
369 my ($obj, $data) = @_;
370
371 $data = from_json $data;
372
373 for (@$data) {
374 my ($name, $args) = @$_;
375
376 $obj->attach ($name, %{$args || {} });
377 }
378}
379
380# basically do the same as instantiate, without calling instantiate
381sub reattach {
382 my ($obj) = @_;
383 my $registry = $obj->registry;
384
385 @$registry = ();
386
387 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
388
389 for my $name (keys %{ $obj->{_attachment} || {} }) {
390 if (my $attach = $attachment{$name}) {
391 for (@$attach) {
392 my ($klass, @attach) = @$_;
393 _attach @$registry, $klass, @attach;
394 }
395 } else {
396 warn "object uses attachment '$name' that is not available, postponing.\n";
397 }
398 }
399}
400
401sub object_freezer_save {
402 my ($filename, $objs) = @_;
403
404 if (@$objs) {
405 open my $fh, ">:raw", "$filename.pst~";
406 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
407 close $fh;
408 chmod SAVE_MODE, "$filename.pst~";
409 rename "$filename.pst~", "$filename.pst";
410 } else {
411 unlink "$filename.pst";
412 }
413
414 chmod SAVE_MODE, "$filename~";
415 rename "$filename~", $filename;
416}
417
418sub object_thawer_load {
419 my ($filename) = @_;
420
421 open my $fh, "<:raw:perlio", "$filename.pst"
422 or return;
423
424 eval { local $/; (Storable::thaw <$fh>)->{objs} }
425}
426
427attach_to_objects
428 prio => -1000000,
429 on_clone => sub {
430 my ($src, $dst) = @_;
431
432 @{$dst->registry} = @{$src->registry};
433
434 %$dst = %$src;
435
436 %{$dst->{_attachment}} = %{$src->{_attachment}}
437 if exists $src->{_attachment};
438 },
439;
440
441#############################################################################
442# old plug-in events
443
90sub inject_event { 444sub inject_event {
91 my $extension = shift; 445 my $extension = shift;
92 my $event_code = shift; 446 my $event_code = shift;
93 447
94 my $cb = $hook[$event_code]{$extension} 448 my $cb = $hook[$event_code]{$extension}
136} 490}
137 491
138sub register { 492sub register {
139 my ($base, $pkg) = @_; 493 my ($base, $pkg) = @_;
140 494
141 for my $idx (0 .. $#EVENT) { 495 #TODO
142 if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
143 #warn "registering $EVENT[$idx] hook to '$pkg'\n";
144 $hook[$idx]{$base} = $ref;
145 }
146 }
147} 496}
148 497
149sub load_extension { 498sub load_extension {
150 my ($path) = @_; 499 my ($path) = @_;
151 500
152 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 501 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
153 my $base = $1; 502 my $base = $1;
154 my $pkg = $1; 503 my $pkg = $1;
155 $pkg =~ s/[^[:word:]]/_/g; 504 $pkg =~ s/[^[:word:]]/_/g;
156 $pkg = "cf::ext::$pkg"; 505 $pkg = "ext::$pkg";
157 506
158 warn "loading '$path' into '$pkg'\n"; 507 warn "loading '$path' into '$pkg'\n";
159 508
160 open my $fh, "<:utf8", $path 509 open my $fh, "<:utf8", $path
161 or die "$path: $!"; 510 or die "$path: $!";
181sub unload_extension { 530sub unload_extension {
182 my ($pkg) = @_; 531 my ($pkg) = @_;
183 532
184 warn "removing extension $pkg\n"; 533 warn "removing extension $pkg\n";
185 534
186 if (my $cb = $pkg->can ("on_unload")) {
187 $cb->($pkg);
188 }
189
190 # remove hooks 535 # remove hooks
536 #TODO
191 for my $idx (0 .. $#EVENT) { 537# for my $idx (0 .. $#PLUGIN_EVENT) {
192 delete $hook[$idx]{$pkg}; 538# delete $hook[$idx]{$pkg};
193 } 539# }
194 540
195 # remove commands 541 # remove commands
196 for my $name (keys %command) { 542 for my $name (keys %command) {
197 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; 543 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
198 544
208 # remove extcmds 554 # remove extcmds
209 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) { 555 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
210 delete $extcmd{$name}; 556 delete $extcmd{$name};
211 } 557 }
212 558
559 if (my $cb = $pkg->can ("unload")) {
560 eval {
561 $cb->($pkg);
562 1
563 } or warn "$pkg unloaded, but with errors: $@";
564 }
565
213 Symbol::delete_package $pkg; 566 Symbol::delete_package $pkg;
214} 567}
215 568
216sub load_extensions { 569sub load_extensions {
217 my $LIBDIR = maps_directory "perl"; 570 my $LIBDIR = maps_directory "perl";
223 1 576 1
224 } or warn "$ext not loaded: $@"; 577 } or warn "$ext not loaded: $@";
225 } 578 }
226} 579}
227 580
581sub _perl_reload(&) {
582 my ($msg) = @_;
583
584 $msg->("reloading...");
585
586 eval {
587 # 1. cancel all watchers
588 $_->cancel for Event::all_watchers;
589
590 # 2. unload all extensions
591 for (@exts) {
592 $msg->("unloading <$_>");
593 unload_extension $_;
594 }
595
596 # 3. unload all modules loaded from $LIBDIR
597 while (my ($k, $v) = each %INC) {
598 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
599
600 $msg->("removing <$k>");
601 delete $INC{$k};
602
603 $k =~ s/\.pm$//;
604 $k =~ s/\//::/g;
605
606 if (my $cb = $k->can ("unload_module")) {
607 $cb->();
608 }
609
610 Symbol::delete_package $k;
611 }
612
613 # 4. get rid of safe::, as good as possible
614 Symbol::delete_package "safe::$_"
615 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
616
617 # 5. remove register_script_function callbacks
618 # TODO
619
620 # 6. unload cf.pm "a bit"
621 delete $INC{"cf.pm"};
622
623 # don't, removes xs symbols, too,
624 # and global variables created in xs
625 #Symbol::delete_package __PACKAGE__;
626
627 # 7. reload cf.pm
628 $msg->("reloading cf.pm");
629 require cf;
630 };
631 $msg->($@) if $@;
632
633 $msg->("reloaded");
634};
635
636sub perl_reload() {
637 _perl_reload {
638 warn $_[0];
639 print "$_[0]\n";
640 };
641}
642
228register_command "perl-reload", 0, sub { 643register_command "perl-reload", 0, sub {
229 my ($who, $arg) = @_; 644 my ($who, $arg) = @_;
230 645
231 if ($who->flag (FLAG_WIZ)) { 646 if ($who->flag (FLAG_WIZ)) {
232 $who->message ("reloading..."); 647 _perl_reload {
233 648 warn $_[0];
234 warn "reloading...\n"; 649 $who->message ($_[0]);
235 eval {
236 # 1. cancel all watchers
237 $_->cancel for Event::all_watchers;
238
239 # 2. unload all extensions
240 for (@exts) {
241 $who->message ("unloading <$_>");
242 unload_extension $_;
243 }
244
245 # 3. unload all modules loaded from $LIBDIR
246 while (my ($k, $v) = each %INC) {
247 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
248
249 $who->message ("removing <$k>");
250 delete $INC{$k};
251
252 $k =~ s/\.pm$//;
253 $k =~ s/\//::/g;
254
255 if (my $cb = $k->can ("unload_module")) {
256 $cb->();
257 }
258
259 Symbol::delete_package $k;
260 }
261
262 # 4. get rid of ext::, as good as possible
263 Symbol::delete_package "ext::$_"
264 for qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region);
265
266 # 5. remove register_script_function callbacks
267 # TODO
268
269 # 6. unload cf.pm "a bit"
270 delete $INC{"cf.pm"};
271
272 # don't, removes xs symbols, too
273 #Symbol::delete_package __PACKAGE__;
274
275 # 7. reload cf.pm
276 $who->message ("reloading cf.pm");
277 require cf;
278 }; 650 };
279 warn $@ if $@;
280 $who->message ($@) if $@;
281 warn "reloaded\n";
282
283 $who->message ("reloaded");
284 } else {
285 $who->message ("Intruder Alert!");
286 } 651 }
287}; 652};
288
289#############################################################################
290# utility functions
291
292use JSON::Syck (); # TODO# replace by JSON::PC once working
293
294sub from_json($) {
295 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
296 JSON::Syck::Load $_[0]
297}
298
299sub to_json($) {
300 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
301 JSON::Syck::Dump $_[0]
302}
303 653
304############################################################################# 654#############################################################################
305# extcmd framework, basically convert ext <msg> 655# extcmd framework, basically convert ext <msg>
306# into pkg::->on_extcmd_arg1 (...) while shortcutting a few 656# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
307 657
308sub on_extcmd { 658attach_to_players
659 on_extcmd => sub {
309 my ($pl, $buf) = @_; 660 my ($pl, $buf) = @_;
310 661
311 my $msg = eval { from_json $buf }; 662 my $msg = eval { from_json $buf };
312 663
313 if (ref $msg) { 664 if (ref $msg) {
314 if (my $cb = $extcmd{$msg->{msgtype}}) { 665 if (my $cb = $extcmd{$msg->{msgtype}}) {
315 if (my %reply = $cb->[0]->($pl, $msg)) { 666 if (my %reply = $cb->[0]->($pl, $msg)) {
316 $pl->ext_reply ($msg->{msgid}, %reply); 667 $pl->ext_reply ($msg->{msgid}, %reply);
668 }
669 }
670 } else {
671 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
672 }
673
674 cf::override;
675 },
676;
677
678#############################################################################
679# load/save/clean perl data associated with a map
680
681*cf::mapsupport::on_clean = sub {
682 my ($map) = @_;
683
684 my $path = $map->tmpname;
685 defined $path or return;
686
687 unlink "$path.pst";
688};
689
690# old style persistent data, TODO: remove #d#
691*cf::mapsupport::on_swapin =
692*cf::mapsupport::on_load = sub {
693 my ($map) = @_;
694
695 my $path = $map->tmpname;
696 $path = $map->path unless defined $path;
697
698 open my $fh, "<:raw", "$path.cfperl"
699 or return; # no perl data
700
701 my $data = Storable::thaw do { local $/; <$fh> };
702
703 $data->{version} <= 1
704 or return; # too new
705
706 $map->_set_obs ($data->{obs});
707 $map->invoke (EVENT_MAP_UPGRADE);
708};
709
710attach_to_maps prio => -10000, package => cf::mapsupport::;
711
712#############################################################################
713# load/save perl data associated with player->ob objects
714
715sub all_objects(@) {
716 @_, map all_objects ($_->inv), @_
717}
718
719attach_to_players
720 on_load => sub {
721 my ($pl, $path) = @_;
722
723 for my $o (all_objects $pl->ob) {
724 if (my $value = $o->get_ob_key_value ("_perl_data")) {
725 $o->set_ob_key_value ("_perl_data");
726
727 %$o = %{ Storable::thaw pack "H*", $value };
317 } 728 }
318 } 729 }
319 } else {
320 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
321 } 730 },
322 731;
323 1
324}
325
326#############################################################################
327# load/save/clean perl data associated with a map
328
329*on_mapclean = sub {
330 my ($map) = @_;
331
332 my $path = $map->tmpname;
333 defined $path or return;
334
335 unlink "$path.cfperl";
336};
337
338*on_mapin =
339*on_mapload = sub {
340 my ($map) = @_;
341
342 my $path = $map->tmpname;
343 $path = $map->path unless defined $path;
344
345 open my $fh, "<:raw", "$path.cfperl"
346 or return; # no perl data
347
348 my $data = Storable::thaw do { local $/; <$fh> };
349
350 $data->{version} <= 1
351 or return; # too new
352
353 $map->_set_obs ($data->{obs});
354};
355
356*on_mapout = sub {
357 my ($map) = @_;
358
359 my $path = $map->tmpname;
360 $path = $map->path unless defined $path;
361
362 my $obs = $map->_get_obs;
363
364 if (defined $obs) {
365 open my $fh, ">:raw", "$path.cfperl"
366 or die "$path.cfperl: $!";
367
368 stat $path;
369
370 print $fh Storable::nfreeze {
371 size => (stat _)[7],
372 time => (stat _)[9],
373 version => 1,
374 obs => $obs,
375 };
376
377 chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
378 } else {
379 unlink "$path.cfperl";
380 }
381};
382
383#############################################################################
384# load/save perl data associated with player->ob objects
385
386*on_player_load = sub {
387 my ($ob, $path) = @_;
388
389 for my $o ($ob, $ob->inv) {
390 if (my $value = $o->get_ob_key_value ("_perl_data")) {
391 $o->set_ob_key_value ("_perl_data");
392
393 %$o = %{ Storable::thaw pack "H*", $value };
394 }
395 }
396};
397
398*on_player_save = sub {
399 my ($ob, $path) = @_;
400
401 $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
402 for grep %$_, $ob, $ob->inv;
403};
404 732
405############################################################################# 733#############################################################################
406# core extensions - in perl 734# core extensions - in perl
407 735
408=item cf::player::exists $login 736=item cf::player::exists $login
454} 782}
455 783
456############################################################################# 784#############################################################################
457# map scripting support 785# map scripting support
458 786
459our $safe = new Safe "ext"; 787our $safe = new Safe "safe";
460our $safe_hole = new Safe::Hole; 788our $safe_hole = new Safe::Hole;
461 789
462$SIG{FPE} = 'IGNORE'; 790$SIG{FPE} = 'IGNORE';
463 791
464$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 792$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
470 ["cf::object::player" => qw(player)], 798 ["cf::object::player" => qw(player)],
471 ["cf::player" => qw(peaceful)], 799 ["cf::player" => qw(peaceful)],
472) { 800) {
473 no strict 'refs'; 801 no strict 'refs';
474 my ($pkg, @funs) = @$_; 802 my ($pkg, @funs) = @$_;
475 *{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 803 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
476 for @funs; 804 for @funs;
477} 805}
478 806
479sub safe_eval($;@) { 807sub safe_eval($;@) {
480 my ($code, %vars) = @_; 808 my ($code, %vars) = @_;
482 my $qcode = $code; 810 my $qcode = $code;
483 $qcode =~ s/"/‟/g; # not allowed in #line filenames 811 $qcode =~ s/"/‟/g; # not allowed in #line filenames
484 $qcode =~ s/\n/\\n/g; 812 $qcode =~ s/\n/\\n/g;
485 813
486 local $_; 814 local $_;
487 local @ext::cf::_safe_eval_args = values %vars; 815 local @safe::cf::_safe_eval_args = values %vars;
488 816
489 $code = 817 my $eval =
490 "do {\n" 818 "do {\n"
491 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" 819 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
492 . "#line 0 \"{$qcode}\"\n" 820 . "#line 0 \"{$qcode}\"\n"
493 . $code 821 . $code
494 . "\n}" 822 . "\n}"
495 ; 823 ;
496 824
497 sub_generation_inc; 825 sub_generation_inc;
498 my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code); 826 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
499 sub_generation_inc; 827 sub_generation_inc;
828
829 if ($@) {
830 warn "$@";
831 warn "while executing safe code '$code'\n";
832 warn "with arguments " . (join " ", %vars) . "\n";
833 }
500 834
501 wantarray ? @res : $res[0] 835 wantarray ? @res : $res[0]
502} 836}
503 837
504sub register_script_function { 838sub register_script_function {
505 my ($fun, $cb) = @_; 839 my ($fun, $cb) = @_;
506 840
507 no strict 'refs'; 841 no strict 'refs';
508 *{"ext::$fun"} = $safe_hole->wrap ($cb); 842 *{"safe::$fun"} = $safe_hole->wrap ($cb);
843}
844
845#############################################################################
846# the server's main()
847
848sub main {
849 Event::loop;
509} 850}
510 851
511############################################################################# 852#############################################################################
512# initialisation 853# initialisation
513 854
515 856
516unshift @INC, $LIBDIR; 857unshift @INC, $LIBDIR;
517 858
518load_extensions; 859load_extensions;
519 860
861$TICK_WATCHER = Event->timer (
862 prio => 1,
863 at => $NEXT_TICK || 1,
864 cb => sub {
865 cf::server_tick; # one server iteration
866
867 my $NOW = Event::time;
868 $NEXT_TICK += $TICK;
869
870 # if we are delayed by four ticks, skip them all
871 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
872
873 $TICK_WATCHER->at ($NEXT_TICK);
874 $TICK_WATCHER->start;
875 },
876);
877
878_reload_2;
879
5201 8801
521 881

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