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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.33 by root, Mon Aug 21 01:51:23 2006 UTC vs.
Revision 1.58 by root, Wed Aug 30 12:08:15 2006 UTC

11use Event; 11use Event;
12$Event::Eval = 1; # no idea why this is required, but it is 12$Event::Eval = 1; # no idea why this is required, but it is
13 13
14use strict; 14use strict;
15 15
16_reload_1;
17
16our %COMMAND; 18our %COMMAND = ();
17our @EVENT; 19our @EVENT;
18our %PROP_TYPE; 20our %PROP_TYPE;
19our %PROP_IDX; 21our %PROP_IDX;
20our $LIBDIR = maps_directory "perl"; 22our $LIBDIR = maps_directory "perl";
21 23
24our $TICK = MAX_TIME * 1e-6;
25our $TICK_WATCHER;
26our $NEXT_TICK;
27
22BEGIN { 28BEGIN {
23 @EVENT = map lc, @EVENT;
24
25 *CORE::GLOBAL::warn = sub { 29 *CORE::GLOBAL::warn = sub {
26 my $msg = join "", @_; 30 my $msg = join "", @_;
27 $msg .= "\n" 31 $msg .= "\n"
28 unless $msg =~ /\n$/; 32 unless $msg =~ /\n$/;
29 33
64prop_gen PLAYER_PROP => "cf::object::player"; 68prop_gen PLAYER_PROP => "cf::object::player";
65 69
66prop_gen MAP_PROP => "cf::map"; 70prop_gen MAP_PROP => "cf::map";
67prop_gen ARCH_PROP => "cf::arch"; 71prop_gen ARCH_PROP => "cf::arch";
68 72
69# guessed hierarchies
70
71@ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 73@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
72@ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object';
73 74
74# 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
75# within the Safe compartment. 76# within the Safe compartment.
76for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region cf::arch)) { 77for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {
77 no strict 'refs'; 78 no strict 'refs';
78 @{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 79 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
79} 80}
80 81
81$Event::DIED = sub { 82$Event::DIED = sub {
82 warn "error in event callback: @_"; 83 warn "error in event callback: @_";
83}; 84};
86my @exts; 87my @exts;
87my @hook; 88my @hook;
88my %command; 89my %command;
89my %extcmd; 90my %extcmd;
90 91
92#############################################################################
93# utility functions
94
95use JSON::Syck (); # TODO# replace by JSON::PC once working
96
97sub from_json($) {
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=head3 EVENTS AND OBJECT ATTACHMENTS
111
112=over 4
113
114=item $object->attach ($attachment, key => $value...)
115
116=item $object->detach ($attachment)
117
118Attach/detach a pre-registered attachment to an object.
119
120=item $player->attach ($attachment, key => $value...)
121
122=item $player->detach ($attachment)
123
124Attach/detach a pre-registered attachment to a player.
125
126=item $map->attach ($attachment, key => $value...)
127
128=item $map->detach ($attachment)
129
130Attach/detach a pre-registered attachment to a map.
131
132=item $bool = $object->attached ($name)
133
134=item $bool = $player->attached ($name)
135
136=item $bool = $map->attached ($name)
137
138Checks wether the named attachment is currently attached to the object.
139
140=item cf::attach_global ...
141
142Attach handlers for global events.
143
144This and all following C<attach_*>-functions expect any number of the
145following handler/hook descriptions:
146
147=over 4
148
149=item prio => $number
150
151Set the priority for all following handlers/hooks (unless overwritten
152by another C<prio> setting). Lower priority handlers get executed
153earlier. The default priority is C<0>, and many built-in handlers are
154registered at priority C<-1000>, so lower priorities should not be used
155unless you know what you are doing.
156
157=item on_I<event> => \&cb
158
159Call the given code reference whenever the named event happens (event is
160something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
161handlers are recognised generally depends on the type of object these
162handlers attach to).
163
164See F<include/eventinc.h> for the full list of events supported, and their
165class.
166
167=item package => package::
168
169Look for sub functions of the name C<< on_I<event> >> in the given
170package and register them. Only handlers for eevents supported by the
171object/class are recognised.
172
173=back
174
175=item cf::attach_to_type $object_type, $subtype, ...
176
177Attach handlers for a specific object type (e.g. TRANSPORT) and
178subtype. If C<$subtype> is zero or undef, matches all objects of the given
179type.
180
181=item cf::attach_to_objects ...
182
183Attach handlers to all objects. Do not use this except for debugging or
184very rare events, as handlers are (obviously) called for I<all> objects in
185the game.
186
187=item cf::attach_to_players ...
188
189Attach handlers to all players.
190
191=item cf::attach_to_maps ...
192
193Attach handlers to all maps.
194
195=item cf:register_attachment $name, ...
196
197Register an attachment by name through which objects can refer to this
198attachment.
199
200=item cf:register_player_attachment $name, ...
201
202Register an attachment by name through which players can refer to this
203attachment.
204
205=item cf:register_map_attachment $name, ...
206
207Register an attachment by name through which maps can refer to this
208attachment.
209
210=cut
211
212# the following variables are defined in .xs and must not be re-created
213our @CB_GLOBAL = (); # registry for all global events
214our @CB_OBJECT = (); # all objects (should not be used except in emergency)
215our @CB_PLAYER = ();
216our @CB_TYPE = (); # registry for type (cf-object class) based events
217our @CB_MAP = ();
218
219my %attachment;
220
221sub _attach_cb($\%$$$) {
222 my ($registry, $undo, $event, $prio, $cb) = @_;
223
224 use sort 'stable';
225
226 $cb = [$prio, $cb];
227
228 @{$registry->[$event]} = sort
229 { $a->[0] cmp $b->[0] }
230 @{$registry->[$event] || []}, $cb;
231
232 push @{$undo->{cb}}, [$event, $cb];
233}
234
235# attach handles attaching event callbacks
236# the only thing the caller has to do is pass the correct
237# registry (== where the callback attaches to).
238sub _attach(\@$@) {
239 my ($registry, $klass, @arg) = @_;
240
241 my $prio = 0;
242
243 my %undo = (
244 registry => $registry,
245 cb => [],
246 );
247
248 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
249
250 while (@arg) {
251 my $type = shift @arg;
252
253 if ($type eq "prio") {
254 $prio = shift @arg;
255
256 } elsif ($type eq "package") {
257 my $pkg = shift @arg;
258
259 while (my ($name, $id) = each %cb_id) {
260 if (my $cb = $pkg->can ($name)) {
261 _attach_cb $registry, %undo, $id, $prio, $cb;
262 }
263 }
264
265 } elsif (exists $cb_id{$type}) {
266 _attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
267
268 } elsif (ref $type) {
269 warn "attaching objects not supported, ignoring.\n";
270
271 } else {
272 shift @arg;
273 warn "attach argument '$type' not supported, ignoring.\n";
274 }
275 }
276
277 \%undo
278}
279
280sub _attach_attachment {
281 my ($obj, $name, %arg) = @_;
282
283 return if exists $obj->{_attachment}{$name};
284
285 my $res;
286
287 if (my $attach = $attachment{$name}) {
288 my $registry = $obj->registry;
289
290 for (@$attach) {
291 my ($klass, @attach) = @$_;
292 $res = _attach @$registry, $klass, @attach;
293 }
294
295 $obj->{$name} = \%arg;
296 } else {
297 warn "object uses attachment '$name' that is not available, postponing.\n";
298 }
299
300 $obj->{_attachment}{$name} = undef;
301
302 $res->{attachment} = $name;
303 $res
304}
305
306*cf::object::attach =
307*cf::player::attach =
308*cf::map::attach = sub {
309 my ($obj, $name, %arg) = @_;
310
311 _attach_attachment $obj, $name, %arg;
312};
313
314# all those should be optimised
315*cf::object::detach =
316*cf::player::detach =
317*cf::map::detach = sub {
318 my ($obj, $name) = @_;
319
320 delete $obj->{_attachment}{$name};
321 reattach ($obj);
322};
323
324*cf::object::attached =
325*cf::player::attached =
326*cf::map::attached = sub {
327 my ($obj, $name) = @_;
328
329 exists $obj->{_attachment}{$name}
330};
331
332sub attach_global {
333 _attach @CB_GLOBAL, KLASS_GLOBAL, @_
334}
335
336sub attach_to_type {
337 my $type = shift;
338 my $subtype = shift;
339
340 _attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
341}
342
343sub attach_to_objects {
344 _attach @CB_OBJECT, KLASS_OBJECT, @_
345}
346
347sub attach_to_players {
348 _attach @CB_PLAYER, KLASS_PLAYER, @_
349}
350
351sub attach_to_maps {
352 _attach @CB_MAP, KLASS_MAP, @_
353}
354
355sub register_attachment {
356 my $name = shift;
357
358 $attachment{$name} = [[KLASS_OBJECT, @_]];
359}
360
361sub register_player_attachment {
362 my $name = shift;
363
364 $attachment{$name} = [[KLASS_PLAYER, @_]];
365}
366
367sub register_map_attachment {
368 my $name = shift;
369
370 $attachment{$name} = [[KLASS_MAP, @_]];
371}
372
373our $override;
374our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
375
376sub override {
377 $override = 1;
378 @invoke_results = ();
379}
380
381sub do_invoke {
382 my $event = shift;
383 my $callbacks = shift;
384
385 @invoke_results = ();
386
387 local $override;
388
389 for (@$callbacks) {
390 eval { &{$_->[1]} };
391
392 if ($@) {
393 warn "$@";
394 warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";
395 override;
396 }
397
398 return 1 if $override;
399 }
400
401 0
402}
403
404=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...
405
406=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
407
408=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
409
410=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
411
412Generate a global/object/player/map-specific event with the given arguments.
413
414This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
415removed in future versions), and there is no public API to access override
416results (if you must, access C<@cf::invoke_results> directly).
417
418=back
419
420=head2 methods valid for all pointers
421
422=over 4
423
424=item $object->valid
425
426=item $player->valid
427
428=item $map->valid
429
430Just because you have a perl object does not mean that the corresponding
431C-level object still exists. If you try to access an object that has no
432valid C counterpart anymore you get an exception at runtime. This method
433can be used to test for existence of the C object part without causing an
434exception.
435
436=back
437
438=cut
439
440*cf::object::valid =
441*cf::player::valid =
442*cf::map::valid = \&cf::_valid;
443
444#############################################################################
445# object support
446
447sub instantiate {
448 my ($obj, $data) = @_;
449
450 $data = from_json $data;
451
452 for (@$data) {
453 my ($name, $args) = @$_;
454
455 $obj->attach ($name, %{$args || {} });
456 }
457}
458
459# basically do the same as instantiate, without calling instantiate
460sub reattach {
461 my ($obj) = @_;
462 my $registry = $obj->registry;
463
464 @$registry = ();
465
466 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
467
468 for my $name (keys %{ $obj->{_attachment} || {} }) {
469 if (my $attach = $attachment{$name}) {
470 for (@$attach) {
471 my ($klass, @attach) = @$_;
472 _attach @$registry, $klass, @attach;
473 }
474 } else {
475 warn "object uses attachment '$name' that is not available, postponing.\n";
476 }
477 }
478}
479
480sub object_freezer_save {
481 my ($filename, $objs) = @_;
482
483 if (@$objs) {
484 open my $fh, ">:raw", "$filename.pst~";
485 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
486 close $fh;
487 chmod SAVE_MODE, "$filename.pst~";
488 rename "$filename.pst~", "$filename.pst";
489 } else {
490 unlink "$filename.pst";
491 }
492
493 chmod SAVE_MODE, "$filename~";
494 rename "$filename~", $filename;
495}
496
497sub object_thawer_load {
498 my ($filename) = @_;
499
500 open my $fh, "<:raw:perlio", "$filename.pst"
501 or return;
502
503 eval { local $/; (Storable::thaw <$fh>)->{objs} }
504}
505
506attach_to_objects
507 prio => -1000000,
508 on_clone => sub {
509 my ($src, $dst) = @_;
510
511 @{$dst->registry} = @{$src->registry};
512
513 %$dst = %$src;
514
515 %{$dst->{_attachment}} = %{$src->{_attachment}}
516 if exists $src->{_attachment};
517 },
518;
519
520#############################################################################
521# old plug-in events
522
91sub inject_event { 523sub inject_event {
92 my $extension = shift; 524 my $extension = shift;
93 my $event_code = shift; 525 my $event_code = shift;
94 526
95 my $cb = $hook[$event_code]{$extension} 527 my $cb = $hook[$event_code]{$extension}
137} 569}
138 570
139sub register { 571sub register {
140 my ($base, $pkg) = @_; 572 my ($base, $pkg) = @_;
141 573
142 for my $idx (0 .. $#EVENT) { 574 #TODO
143 if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
144 #warn "registering $EVENT[$idx] hook to '$pkg'\n";
145 $hook[$idx]{$base} = $ref;
146 }
147 }
148} 575}
149 576
150sub load_extension { 577sub load_extension {
151 my ($path) = @_; 578 my ($path) = @_;
152 579
153 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 580 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
154 my $base = $1; 581 my $base = $1;
155 my $pkg = $1; 582 my $pkg = $1;
156 $pkg =~ s/[^[:word:]]/_/g; 583 $pkg =~ s/[^[:word:]]/_/g;
157 $pkg = "cf::ext::$pkg"; 584 $pkg = "ext::$pkg";
158 585
159 warn "loading '$path' into '$pkg'\n"; 586 warn "loading '$path' into '$pkg'\n";
160 587
161 open my $fh, "<:utf8", $path 588 open my $fh, "<:utf8", $path
162 or die "$path: $!"; 589 or die "$path: $!";
183 my ($pkg) = @_; 610 my ($pkg) = @_;
184 611
185 warn "removing extension $pkg\n"; 612 warn "removing extension $pkg\n";
186 613
187 # remove hooks 614 # remove hooks
615 #TODO
188 for my $idx (0 .. $#EVENT) { 616# for my $idx (0 .. $#PLUGIN_EVENT) {
189 delete $hook[$idx]{$pkg}; 617# delete $hook[$idx]{$pkg};
190 } 618# }
191 619
192 # remove commands 620 # remove commands
193 for my $name (keys %command) { 621 for my $name (keys %command) {
194 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; 622 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
195 623
205 # remove extcmds 633 # remove extcmds
206 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) { 634 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
207 delete $extcmd{$name}; 635 delete $extcmd{$name};
208 } 636 }
209 637
210 if (my $cb = $pkg->can ("on_unload")) { 638 if (my $cb = $pkg->can ("unload")) {
211 eval { 639 eval {
212 $cb->($pkg); 640 $cb->($pkg);
213 1 641 1
214 } or warn "$pkg unloaded, but with errors: $@"; 642 } or warn "$pkg unloaded, but with errors: $@";
215 } 643 }
227 1 655 1
228 } or warn "$ext not loaded: $@"; 656 } or warn "$ext not loaded: $@";
229 } 657 }
230} 658}
231 659
660sub _perl_reload(&) {
661 my ($msg) = @_;
662
663 $msg->("reloading...");
664
665 eval {
666 # 1. cancel all watchers
667 $_->cancel for Event::all_watchers;
668
669 # 2. unload all extensions
670 for (@exts) {
671 $msg->("unloading <$_>");
672 unload_extension $_;
673 }
674
675 # 3. unload all modules loaded from $LIBDIR
676 while (my ($k, $v) = each %INC) {
677 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
678
679 $msg->("removing <$k>");
680 delete $INC{$k};
681
682 $k =~ s/\.pm$//;
683 $k =~ s/\//::/g;
684
685 if (my $cb = $k->can ("unload_module")) {
686 $cb->();
687 }
688
689 Symbol::delete_package $k;
690 }
691
692 # 4. get rid of safe::, as good as possible
693 Symbol::delete_package "safe::$_"
694 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
695
696 # 5. remove register_script_function callbacks
697 # TODO
698
699 # 6. unload cf.pm "a bit"
700 delete $INC{"cf.pm"};
701
702 # don't, removes xs symbols, too,
703 # and global variables created in xs
704 #Symbol::delete_package __PACKAGE__;
705
706 # 7. reload cf.pm
707 $msg->("reloading cf.pm");
708 require cf;
709 };
710 $msg->($@) if $@;
711
712 $msg->("reloaded");
713};
714
715sub perl_reload() {
716 _perl_reload {
717 warn $_[0];
718 print "$_[0]\n";
719 };
720}
721
232register_command "perl-reload", 0, sub { 722register_command "perl-reload", 0, sub {
233 my ($who, $arg) = @_; 723 my ($who, $arg) = @_;
234 724
235 if ($who->flag (FLAG_WIZ)) { 725 if ($who->flag (FLAG_WIZ)) {
236 $who->message ("reloading..."); 726 _perl_reload {
237 727 warn $_[0];
238 warn "reloading...\n"; 728 $who->message ($_[0]);
239 eval {
240 # 1. cancel all watchers
241 $_->cancel for Event::all_watchers;
242
243 # 2. unload all extensions
244 for (@exts) {
245 $who->message ("unloading <$_>");
246 unload_extension $_;
247 }
248
249 # 3. unload all modules loaded from $LIBDIR
250 while (my ($k, $v) = each %INC) {
251 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
252
253 $who->message ("removing <$k>");
254 delete $INC{$k};
255
256 $k =~ s/\.pm$//;
257 $k =~ s/\//::/g;
258
259 if (my $cb = $k->can ("unload_module")) {
260 $cb->();
261 }
262
263 Symbol::delete_package $k;
264 }
265
266 # 4. get rid of ext::, as good as possible
267 Symbol::delete_package "ext::$_"
268 for qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region);
269
270 # 5. remove register_script_function callbacks
271 # TODO
272
273 # 6. unload cf.pm "a bit"
274 delete $INC{"cf.pm"};
275
276 # don't, removes xs symbols, too
277 #Symbol::delete_package __PACKAGE__;
278
279 # 7. reload cf.pm
280 $who->message ("reloading cf.pm");
281 require cf;
282 }; 729 };
283 warn $@ if $@;
284 $who->message ($@) if $@;
285 warn "reloaded\n";
286
287 $who->message ("reloaded");
288 } else {
289 $who->message ("Intruder Alert!");
290 } 730 }
291}; 731};
292
293#############################################################################
294# utility functions
295
296use JSON::Syck (); # TODO# replace by JSON::PC once working
297
298sub from_json($) {
299 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
300 JSON::Syck::Load $_[0]
301}
302
303sub to_json($) {
304 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
305 JSON::Syck::Dump $_[0]
306}
307 732
308############################################################################# 733#############################################################################
309# extcmd framework, basically convert ext <msg> 734# extcmd framework, basically convert ext <msg>
310# into pkg::->on_extcmd_arg1 (...) while shortcutting a few 735# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
311 736
312sub on_extcmd { 737attach_to_players
738 on_extcmd => sub {
313 my ($pl, $buf) = @_; 739 my ($pl, $buf) = @_;
314 740
315 my $msg = eval { from_json $buf }; 741 my $msg = eval { from_json $buf };
316 742
317 if (ref $msg) { 743 if (ref $msg) {
318 if (my $cb = $extcmd{$msg->{msgtype}}) { 744 if (my $cb = $extcmd{$msg->{msgtype}}) {
319 if (my %reply = $cb->[0]->($pl, $msg)) { 745 if (my %reply = $cb->[0]->($pl, $msg)) {
320 $pl->ext_reply ($msg->{msgid}, %reply); 746 $pl->ext_reply ($msg->{msgid}, %reply);
747 }
748 }
749 } else {
750 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
751 }
752
753 cf::override;
754 },
755;
756
757#############################################################################
758# load/save/clean perl data associated with a map
759
760*cf::mapsupport::on_clean = sub {
761 my ($map) = @_;
762
763 my $path = $map->tmpname;
764 defined $path or return;
765
766 unlink "$path.pst";
767};
768
769attach_to_maps prio => -10000, package => cf::mapsupport::;
770
771#############################################################################
772# load/save perl data associated with player->ob objects
773
774sub all_objects(@) {
775 @_, map all_objects ($_->inv), @_
776}
777
778attach_to_players
779 on_load => sub {
780 my ($pl, $path) = @_;
781
782 for my $o (all_objects $pl->ob) {
783 if (my $value = $o->get_ob_key_value ("_perl_data")) {
784 $o->set_ob_key_value ("_perl_data");
785
786 %$o = %{ Storable::thaw pack "H*", $value };
321 } 787 }
322 } 788 }
323 } else {
324 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
325 } 789 },
326 790;
327 1
328}
329
330#############################################################################
331# load/save/clean perl data associated with a map
332
333*on_mapclean = sub {
334 my ($map) = @_;
335
336 my $path = $map->tmpname;
337 defined $path or return;
338
339 unlink "$path.cfperl";
340};
341
342*on_mapin =
343*on_mapload = sub {
344 my ($map) = @_;
345
346 my $path = $map->tmpname;
347 $path = $map->path unless defined $path;
348
349 open my $fh, "<:raw", "$path.cfperl"
350 or return; # no perl data
351
352 my $data = Storable::thaw do { local $/; <$fh> };
353
354 $data->{version} <= 1
355 or return; # too new
356
357 $map->_set_obs ($data->{obs});
358};
359
360*on_mapout = sub {
361 my ($map) = @_;
362
363 my $path = $map->tmpname;
364 $path = $map->path unless defined $path;
365
366 my $obs = $map->_get_obs;
367
368 if (defined $obs) {
369 open my $fh, ">:raw", "$path.cfperl"
370 or die "$path.cfperl: $!";
371
372 stat $path;
373
374 print $fh Storable::nfreeze {
375 size => (stat _)[7],
376 time => (stat _)[9],
377 version => 1,
378 obs => $obs,
379 };
380
381 chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
382 } else {
383 unlink "$path.cfperl";
384 }
385};
386
387#############################################################################
388# load/save perl data associated with player->ob objects
389
390sub all_objects(@) {
391 @_, map all_objects ($_->inv), @_
392}
393
394*on_player_load = sub {
395 my ($ob, $path) = @_;
396
397 for my $o (all_objects $ob) {
398 if (my $value = $o->get_ob_key_value ("_perl_data")) {
399 $o->set_ob_key_value ("_perl_data");
400
401 %$o = %{ Storable::thaw pack "H*", $value };
402 }
403 }
404};
405
406*on_player_save = sub {
407 my ($ob, $path) = @_;
408
409 $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
410 for grep %$_, all_objects $ob;
411};
412 791
413############################################################################# 792#############################################################################
414# core extensions - in perl 793# core extensions - in perl
415
416my $delta_timer = Event->timer (
417 parked => 1,
418 prio => Event::PRIO_HIGH,
419 cb => sub { Event::unloop (undef) },
420);
421
422sub sleep_delta($) {
423 $delta_timer->at (Event::time + $_[0]);
424 $delta_timer->start;
425 Event::loop;
426}
427 794
428=item cf::player::exists $login 795=item cf::player::exists $login
429 796
430Returns true when the given account exists. 797Returns true when the given account exists.
431 798
474} 841}
475 842
476############################################################################# 843#############################################################################
477# map scripting support 844# map scripting support
478 845
479our $safe = new Safe "ext"; 846our $safe = new Safe "safe";
480our $safe_hole = new Safe::Hole; 847our $safe_hole = new Safe::Hole;
481 848
482$SIG{FPE} = 'IGNORE'; 849$SIG{FPE} = 'IGNORE';
483 850
484$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 851$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
490 ["cf::object::player" => qw(player)], 857 ["cf::object::player" => qw(player)],
491 ["cf::player" => qw(peaceful)], 858 ["cf::player" => qw(peaceful)],
492) { 859) {
493 no strict 'refs'; 860 no strict 'refs';
494 my ($pkg, @funs) = @$_; 861 my ($pkg, @funs) = @$_;
495 *{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 862 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
496 for @funs; 863 for @funs;
497} 864}
498 865
499sub safe_eval($;@) { 866sub safe_eval($;@) {
500 my ($code, %vars) = @_; 867 my ($code, %vars) = @_;
502 my $qcode = $code; 869 my $qcode = $code;
503 $qcode =~ s/"/‟/g; # not allowed in #line filenames 870 $qcode =~ s/"/‟/g; # not allowed in #line filenames
504 $qcode =~ s/\n/\\n/g; 871 $qcode =~ s/\n/\\n/g;
505 872
506 local $_; 873 local $_;
507 local @ext::cf::_safe_eval_args = values %vars; 874 local @safe::cf::_safe_eval_args = values %vars;
508 875
509 $code = 876 my $eval =
510 "do {\n" 877 "do {\n"
511 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" 878 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
512 . "#line 0 \"{$qcode}\"\n" 879 . "#line 0 \"{$qcode}\"\n"
513 . $code 880 . $code
514 . "\n}" 881 . "\n}"
515 ; 882 ;
516 883
517 sub_generation_inc; 884 sub_generation_inc;
518 my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code); 885 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
519 sub_generation_inc; 886 sub_generation_inc;
887
888 if ($@) {
889 warn "$@";
890 warn "while executing safe code '$code'\n";
891 warn "with arguments " . (join " ", %vars) . "\n";
892 }
520 893
521 wantarray ? @res : $res[0] 894 wantarray ? @res : $res[0]
522} 895}
523 896
524sub register_script_function { 897sub register_script_function {
525 my ($fun, $cb) = @_; 898 my ($fun, $cb) = @_;
526 899
527 no strict 'refs'; 900 no strict 'refs';
528 *{"ext::$fun"} = $safe_hole->wrap ($cb); 901 *{"safe::$fun"} = $safe_hole->wrap ($cb);
902}
903
904#############################################################################
905# the server's main()
906
907sub main {
908 Event::loop;
529} 909}
530 910
531############################################################################# 911#############################################################################
532# initialisation 912# initialisation
533 913
535 915
536unshift @INC, $LIBDIR; 916unshift @INC, $LIBDIR;
537 917
538load_extensions; 918load_extensions;
539 919
920$TICK_WATCHER = Event->timer (
921 prio => 1,
922 at => $NEXT_TICK || 1,
923 cb => sub {
924 cf::server_tick; # one server iteration
925
926 my $NOW = Event::time;
927 $NEXT_TICK += $TICK;
928
929 # if we are delayed by four ticks, skip them all
930 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
931
932 $TICK_WATCHER->at ($NEXT_TICK);
933 $TICK_WATCHER->start;
934 },
935);
936
937_reload_2;
938
5401 9391
541 940

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