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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.36 by root, Thu Aug 24 14:04:29 2006 UTC vs.
Revision 1.47 by root, Sun Aug 27 13:02:04 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
22our $TICK = MAX_TIME * 1e-6; 24our $TICK = MAX_TIME * 1e-6;
23our $TICK_WATCHER; 25our $TICK_WATCHER;
24our $NEXT_TICK; 26our $NEXT_TICK;
25 27
26BEGIN { 28BEGIN {
27 @EVENT = map lc, @EVENT;
28
29 *CORE::GLOBAL::warn = sub { 29 *CORE::GLOBAL::warn = sub {
30 my $msg = join "", @_; 30 my $msg = join "", @_;
31 $msg .= "\n" 31 $msg .= "\n"
32 unless $msg =~ /\n$/; 32 unless $msg =~ /\n$/;
33 33
68prop_gen PLAYER_PROP => "cf::object::player"; 68prop_gen PLAYER_PROP => "cf::object::player";
69 69
70prop_gen MAP_PROP => "cf::map"; 70prop_gen MAP_PROP => "cf::map";
71prop_gen ARCH_PROP => "cf::arch"; 71prop_gen ARCH_PROP => "cf::arch";
72 72
73# guessed hierarchies
74
75@ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 73@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
76@ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object';
77 74
78# 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
79# within the Safe compartment. 76# within the Safe compartment.
80for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region cf::arch)) { 77for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {
81 no strict 'refs'; 78 no strict 'refs';
82 @{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 79 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
83} 80}
84 81
85$Event::DIED = sub { 82$Event::DIED = sub {
86 warn "error in event callback: @_"; 83 warn "error in event callback: @_";
87}; 84};
90my @exts; 87my @exts;
91my @hook; 88my @hook;
92my %command; 89my %command;
93my %extcmd; 90my %extcmd;
94 91
92#############################################################################
93# utility functions
94
95use JSON::Syck (); # TODO# replace by JSON::PC once working
96
97sub from_json($) {
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, ...)
111
112Attach a pre-registered attachment to an object.
113
114=item $player->attach ($attachment, ...)
115
116Attach a pre-registered attachment to a player.
117
118=item $map->attach ($attachment, ...) # 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, @args) = @_;
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 if (my $cb = delete $registry->[EVENT_OBJECT_INSTANTIATE]) {
263 for (@$cb) {
264 eval { $_->[1]->($obj, @args); };
265 if ($@) {
266 warn "$@";
267 warn "... while processing '$name' instantiate with args <@args>.\n";
268 }
269 }
270 }
271 } else {
272 warn "object uses attachment '$name' that is not available, postponing.\n";
273 }
274
275 push @{$obj->{_attachment}}, $name;
276
277 $res->{attachment} = $name;
278 $res
279}
280
281sub cf::object::attach {
282 my ($obj, $name, @args) = @_;
283
284 _attach_attachment $obj, $name, @args;
285}
286
287sub cf::player::attach {
288 my ($obj, $name, @args) = @_;
289
290 _attach_attachment KLASS_PLAYER, $obj, $name, @args;
291}
292
293sub cf::map::attach {
294 my ($obj, $name, @args) = @_;
295
296 _attach_attachment KLASS_MAP, $obj, $name, @args;
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
328our $override;
329our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
330
331sub override {
332 $override = 1;
333 @invoke_results = ();
334}
335
336sub do_invoke {
337 my $event = shift;
338 my $callbacks = shift;
339
340 @invoke_results = ();
341
342 local $override;
343
344 for (@$callbacks) {
345 eval { &{$_->[1]} };
346
347 if ($@) {
348 warn "$@";
349 warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";
350 override;
351 }
352
353 return 1 if $override;
354 }
355
356 0
357}
358
359#############################################################################
360# object support
361
362sub instantiate {
363 my ($obj, $data) = @_;
364
365 $data = from_json $data;
366
367 for (@$data) {
368 my ($name, $args) = @$_;
369 attach $obj, $name, @{$args || [] };
370 }
371}
372
373# basically do the same as instantiate, without calling instantiate
374sub reattach {
375 my ($obj) = @_;
376 my $registry = $obj->registry;
377
378 @$registry = ();
379
380 for my $name (@{ $obj->{_attachment} }) {
381 if (my $attach = $attachment{$name}) {
382 for (@$attach) {
383 my ($klass, @attach) = @$_;
384 _attach @$registry, $klass, @attach;
385 }
386 } else {
387 warn "object uses attachment '$name' that is not available, postponing.\n";
388 }
389 }
390}
391
392sub object_freezer_save {
393 my ($filename, $objs) = @_;
394
395 $filename .= ".pst";
396
397 if (@$objs) {
398 open my $fh, ">:raw", "$filename~";
399 chmod $fh, SAVE_MODE;
400 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
401 close $fh;
402 rename "$filename~", $filename;
403 } else {
404 unlink $filename;
405 }
406}
407
408sub object_thawer_load {
409 my ($filename) = @_;
410
411 open my $fh, "<:raw:perlio", "$filename.pst"
412 or return;
413
414 eval { local $/; (Storable::thaw <$fh>)->{objs} }
415}
416
417attach_to_objects
418 prio => -1000000,
419 on_clone => sub {
420 my ($src, $dst) = @_;
421
422 @{$dst->registry} = @{$src->registry};
423
424 %$dst = %$src;
425
426 $dst->{_attachment} = [@{ $src->{_attachment} }]
427 if exists $src->{_attachment};
428 },
429;
430
431#############################################################################
432# old plug-in events
433
95sub inject_event { 434sub inject_event {
96 my $extension = shift; 435 my $extension = shift;
97 my $event_code = shift; 436 my $event_code = shift;
98 437
99 my $cb = $hook[$event_code]{$extension} 438 my $cb = $hook[$event_code]{$extension}
141} 480}
142 481
143sub register { 482sub register {
144 my ($base, $pkg) = @_; 483 my ($base, $pkg) = @_;
145 484
146 for my $idx (0 .. $#EVENT) { 485 #TODO
147 if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
148 #warn "registering $EVENT[$idx] hook to '$pkg'\n";
149 $hook[$idx]{$base} = $ref;
150 }
151 }
152} 486}
153 487
154sub load_extension { 488sub load_extension {
155 my ($path) = @_; 489 my ($path) = @_;
156 490
157 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 491 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
158 my $base = $1; 492 my $base = $1;
159 my $pkg = $1; 493 my $pkg = $1;
160 $pkg =~ s/[^[:word:]]/_/g; 494 $pkg =~ s/[^[:word:]]/_/g;
161 $pkg = "cf::ext::$pkg"; 495 $pkg = "ext::$pkg";
162 496
163 warn "loading '$path' into '$pkg'\n"; 497 warn "loading '$path' into '$pkg'\n";
164 498
165 open my $fh, "<:utf8", $path 499 open my $fh, "<:utf8", $path
166 or die "$path: $!"; 500 or die "$path: $!";
187 my ($pkg) = @_; 521 my ($pkg) = @_;
188 522
189 warn "removing extension $pkg\n"; 523 warn "removing extension $pkg\n";
190 524
191 # remove hooks 525 # remove hooks
526 #TODO
192 for my $idx (0 .. $#EVENT) { 527# for my $idx (0 .. $#PLUGIN_EVENT) {
193 delete $hook[$idx]{$pkg}; 528# delete $hook[$idx]{$pkg};
194 } 529# }
195 530
196 # remove commands 531 # remove commands
197 for my $name (keys %command) { 532 for my $name (keys %command) {
198 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; 533 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
199 534
209 # remove extcmds 544 # remove extcmds
210 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) { 545 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
211 delete $extcmd{$name}; 546 delete $extcmd{$name};
212 } 547 }
213 548
214 if (my $cb = $pkg->can ("on_unload")) { 549 if (my $cb = $pkg->can ("unload")) {
215 eval { 550 eval {
216 $cb->($pkg); 551 $cb->($pkg);
217 1 552 1
218 } or warn "$pkg unloaded, but with errors: $@"; 553 } or warn "$pkg unloaded, but with errors: $@";
219 } 554 }
263 } 598 }
264 599
265 Symbol::delete_package $k; 600 Symbol::delete_package $k;
266 } 601 }
267 602
268 # 4. get rid of ext::, as good as possible 603 # 4. get rid of safe::, as good as possible
269 Symbol::delete_package "ext::$_" 604 Symbol::delete_package "safe::$_"
270 for qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region); 605 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
271 606
272 # 5. remove register_script_function callbacks 607 # 5. remove register_script_function callbacks
273 # TODO 608 # TODO
274 609
275 # 6. unload cf.pm "a bit" 610 # 6. unload cf.pm "a bit"
276 delete $INC{"cf.pm"}; 611 delete $INC{"cf.pm"};
277 612
278 # don't, removes xs symbols, too 613 # don't, removes xs symbols, too,
614 # and global variables created in xs
279 #Symbol::delete_package __PACKAGE__; 615 #Symbol::delete_package __PACKAGE__;
280 616
281 # 7. reload cf.pm 617 # 7. reload cf.pm
282 $msg->("reloading cf.pm"); 618 $msg->("reloading cf.pm");
283 require cf; 619 require cf;
304 }; 640 };
305 } 641 }
306}; 642};
307 643
308############################################################################# 644#############################################################################
309# utility functions
310
311use JSON::Syck (); # TODO# replace by JSON::PC once working
312
313sub from_json($) {
314 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
315 JSON::Syck::Load $_[0]
316}
317
318sub to_json($) {
319 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
320 JSON::Syck::Dump $_[0]
321}
322
323#############################################################################
324# extcmd framework, basically convert ext <msg> 645# extcmd framework, basically convert ext <msg>
325# into pkg::->on_extcmd_arg1 (...) while shortcutting a few 646# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
326 647
327sub on_extcmd { 648attach_to_players
649 on_extcmd => sub {
328 my ($pl, $buf) = @_; 650 my ($pl, $buf) = @_;
329 651
330 my $msg = eval { from_json $buf }; 652 my $msg = eval { from_json $buf };
331 653
332 if (ref $msg) { 654 if (ref $msg) {
333 if (my $cb = $extcmd{$msg->{msgtype}}) { 655 if (my $cb = $extcmd{$msg->{msgtype}}) {
334 if (my %reply = $cb->[0]->($pl, $msg)) { 656 if (my %reply = $cb->[0]->($pl, $msg)) {
335 $pl->ext_reply ($msg->{msgid}, %reply); 657 $pl->ext_reply ($msg->{msgid}, %reply);
658 }
336 } 659 }
337 }
338 } else { 660 } else {
339 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 661 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
662 }
663
664 cf::override;
340 } 665 },
341 666;
342 1
343}
344 667
345############################################################################# 668#############################################################################
346# load/save/clean perl data associated with a map 669# load/save/clean perl data associated with a map
347 670
348*on_mapclean = sub { 671*cf::mapsupport::on_clean = sub {
349 my ($map) = @_; 672 my ($map) = @_;
350 673
351 my $path = $map->tmpname; 674 my $path = $map->tmpname;
352 defined $path or return; 675 defined $path or return;
353 676
354 unlink "$path.cfperl"; 677 unlink "$path.cfperl";
678 unlink "$path.pst";
355}; 679};
356 680
357*on_mapin = 681*cf::mapsupport::on_swapin =
358*on_mapload = sub { 682*cf::mapsupport::on_load = sub {
359 my ($map) = @_; 683 my ($map) = @_;
360 684
361 my $path = $map->tmpname; 685 my $path = $map->tmpname;
362 $path = $map->path unless defined $path; 686 $path = $map->path unless defined $path;
363 687
370 or return; # too new 694 or return; # too new
371 695
372 $map->_set_obs ($data->{obs}); 696 $map->_set_obs ($data->{obs});
373}; 697};
374 698
375*on_mapout = sub { 699attach_to_maps prio => -10000, package => cf::mapsupport::;
376 my ($map) = @_;
377
378 my $path = $map->tmpname;
379 $path = $map->path unless defined $path;
380
381 my $obs = $map->_get_obs;
382
383 if (defined $obs) {
384 open my $fh, ">:raw", "$path.cfperl"
385 or die "$path.cfperl: $!";
386
387 stat $path;
388
389 print $fh Storable::nfreeze {
390 size => (stat _)[7],
391 time => (stat _)[9],
392 version => 1,
393 obs => $obs,
394 };
395
396 chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
397 } else {
398 unlink "$path.cfperl";
399 }
400};
401 700
402############################################################################# 701#############################################################################
403# load/save perl data associated with player->ob objects 702# load/save perl data associated with player->ob objects
404 703
405sub all_objects(@) { 704sub all_objects(@) {
406 @_, map all_objects ($_->inv), @_ 705 @_, map all_objects ($_->inv), @_
407} 706}
408 707
409*on_player_load = sub { 708attach_to_players
709 on_load => sub {
410 my ($ob, $path) = @_; 710 my ($pl, $path) = @_;
411 711
412 for my $o (all_objects $ob) { 712 for my $o (all_objects $pl->ob) {
413 if (my $value = $o->get_ob_key_value ("_perl_data")) { 713 if (my $value = $o->get_ob_key_value ("_perl_data")) {
414 $o->set_ob_key_value ("_perl_data"); 714 $o->set_ob_key_value ("_perl_data");
415 715
416 %$o = %{ Storable::thaw pack "H*", $value }; 716 %$o = %{ Storable::thaw pack "H*", $value };
417 } 717 }
718 }
418 } 719 },
419}; 720;
420
421*on_player_save = sub {
422 my ($ob, $path) = @_;
423
424 $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
425 for grep %$_, all_objects $ob;
426};
427 721
428############################################################################# 722#############################################################################
429# core extensions - in perl 723# core extensions - in perl
430 724
431=item cf::player::exists $login 725=item cf::player::exists $login
477} 771}
478 772
479############################################################################# 773#############################################################################
480# map scripting support 774# map scripting support
481 775
482our $safe = new Safe "ext"; 776our $safe = new Safe "safe";
483our $safe_hole = new Safe::Hole; 777our $safe_hole = new Safe::Hole;
484 778
485$SIG{FPE} = 'IGNORE'; 779$SIG{FPE} = 'IGNORE';
486 780
487$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 781$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
493 ["cf::object::player" => qw(player)], 787 ["cf::object::player" => qw(player)],
494 ["cf::player" => qw(peaceful)], 788 ["cf::player" => qw(peaceful)],
495) { 789) {
496 no strict 'refs'; 790 no strict 'refs';
497 my ($pkg, @funs) = @$_; 791 my ($pkg, @funs) = @$_;
498 *{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 792 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
499 for @funs; 793 for @funs;
500} 794}
501 795
502sub safe_eval($;@) { 796sub safe_eval($;@) {
503 my ($code, %vars) = @_; 797 my ($code, %vars) = @_;
505 my $qcode = $code; 799 my $qcode = $code;
506 $qcode =~ s/"/‟/g; # not allowed in #line filenames 800 $qcode =~ s/"/‟/g; # not allowed in #line filenames
507 $qcode =~ s/\n/\\n/g; 801 $qcode =~ s/\n/\\n/g;
508 802
509 local $_; 803 local $_;
510 local @ext::cf::_safe_eval_args = values %vars; 804 local @safe::cf::_safe_eval_args = values %vars;
511 805
512 $code = 806 my $eval =
513 "do {\n" 807 "do {\n"
514 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" 808 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
515 . "#line 0 \"{$qcode}\"\n" 809 . "#line 0 \"{$qcode}\"\n"
516 . $code 810 . $code
517 . "\n}" 811 . "\n}"
518 ; 812 ;
519 813
520 sub_generation_inc; 814 sub_generation_inc;
521 my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code); 815 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
522 sub_generation_inc; 816 sub_generation_inc;
817
818 if ($@) {
819 warn "$@";
820 warn "while executing safe code '$code'\n";
821 warn "with arguments " . (join " ", %vars) . "\n";
822 }
523 823
524 wantarray ? @res : $res[0] 824 wantarray ? @res : $res[0]
525} 825}
526 826
527sub register_script_function { 827sub register_script_function {
528 my ($fun, $cb) = @_; 828 my ($fun, $cb) = @_;
529 829
530 no strict 'refs'; 830 no strict 'refs';
531 *{"ext::$fun"} = $safe_hole->wrap ($cb); 831 *{"safe::$fun"} = $safe_hole->wrap ($cb);
532} 832}
533 833
534############################################################################# 834#############################################################################
535# the server's main() 835# the server's main()
536 836
537sub run { 837sub main {
538 Event::loop; 838 Event::loop;
539} 839}
540 840
541############################################################################# 841#############################################################################
542# initialisation 842# initialisation
554 cf::server_tick; # one server iteration 854 cf::server_tick; # one server iteration
555 855
556 my $NOW = Event::time; 856 my $NOW = Event::time;
557 $NEXT_TICK += $TICK; 857 $NEXT_TICK += $TICK;
558 858
559 # if we are delayed by > 0.25 second, skip ticks 859 # if we are delayed by four ticks, skip them all
560 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + .25; 860 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
561 861
562 $TICK_WATCHER->at ($NEXT_TICK); 862 $TICK_WATCHER->at ($NEXT_TICK);
563 $TICK_WATCHER->start; 863 $TICK_WATCHER->start;
564 }, 864 },
565); 865);
566 866
867_reload_2;
868
5671 8691
568 870

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