ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/lib/cf.pm
(Generate patch)

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.5 by root, Wed Feb 8 03:46:15 2006 UTC vs.
Revision 1.46 by root, Sun Aug 27 16:15:12 2006 UTC

1package cf; 1package cf;
2 2
3use Symbol; 3use Symbol;
4use List::Util; 4use List::Util;
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
5 13
6use strict; 14use strict;
7 15
8our %COMMAND; 16our %COMMAND = ();
9our @EVENT; 17our @EVENT;
10our %PROP_TYPE; 18our %PROP_TYPE;
11our %PROP_IDX; 19our %PROP_IDX;
20our $LIBDIR = maps_directory "perl";
21
22our $TICK = MAX_TIME * 1e-6;
23our $TICK_WATCHER;
24our $NEXT_TICK;
12 25
13BEGIN { 26BEGIN {
14 @EVENT = map lc, @EVENT;
15
16 *CORE::GLOBAL::warn = sub { 27 *CORE::GLOBAL::warn = sub {
17 my $msg = join "", @_; 28 my $msg = join "", @_;
18 $msg .= "\n" 29 $msg .= "\n"
19 unless $msg =~ /\n$/; 30 unless $msg =~ /\n$/;
20 31
21 print STDERR "cfperl: $msg"; 32 print STDERR "cfperl: $msg";
22 LOG llevError, "cfperl: $msg"; 33 LOG llevError, "cfperl: $msg";
23 }; 34 };
24} 35}
25 36
37my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
38
26# generate property mutators 39# generate property mutators
27sub prop_gen { 40sub prop_gen {
28 my ($prefix, $class) = @_; 41 my ($prefix, $class) = @_;
29 42
30 no strict 'refs'; 43 no strict 'refs';
40 $_[0]->get_property ($type, $idx) 53 $_[0]->get_property ($type, $idx)
41 }; 54 };
42 55
43 *{"$class\::set_$sub"} = sub { 56 *{"$class\::set_$sub"} = sub {
44 $_[0]->set_property ($type, $idx, $_[1]); 57 $_[0]->set_property ($type, $idx, $_[1]);
45 }; 58 } unless $ignore_set{$prop};
46 } 59 }
47} 60}
48 61
49# auto-generate most of the API 62# auto-generate most of the API
50 63
53prop_gen PLAYER_PROP => "cf::object::player"; 66prop_gen PLAYER_PROP => "cf::object::player";
54 67
55prop_gen MAP_PROP => "cf::map"; 68prop_gen MAP_PROP => "cf::map";
56prop_gen ARCH_PROP => "cf::arch"; 69prop_gen ARCH_PROP => "cf::arch";
57 70
58# guessed hierarchies 71@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
59 72
60@cf::object::player::ISA = 'cf::object'; 73# we bless all objects into (empty) derived classes to force a method lookup
61@cf::object::map::ISA = 'cf::object'; 74# within the Safe compartment.
75for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {
76 no strict 'refs';
77 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
78}
79
80$Event::DIED = sub {
81 warn "error in event callback: @_";
82};
62 83
63my %ext_pkg; 84my %ext_pkg;
64my @exts; 85my @exts;
65my @hook; 86my @hook;
66my %command; 87my %command;
88my %extcmd;
89
90#############################################################################
91# utility functions
92
93use JSON::Syck (); # TODO# replace by JSON::PC once working
94
95sub from_json($) {
96 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
97 JSON::Syck::Load $_[0]
98}
99
100sub to_json($) {
101 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
102 JSON::Syck::Dump $_[0]
103}
104
105#############################################################################
106# "new" plug-in system
107
108=item $object->attach ($attachment, ...)
109
110Attach a pre-registered attachment to an object.
111
112=item $player->attach ($attachment, ...)
113
114Attach a pre-registered attachment to a player.
115
116=item $map->attach ($attachment, ...) # not yet persistent
117
118Attach a pre-registered attachment to a map.
119
120=item cf::attach_global ...
121
122Attach handlers for global events.
123
124This and all following C<attach_*>-functions expect any number of the
125following handler/hook descriptions:
126
127=over 4
128
129=item prio => $number
130
131Set the priority for all following handlers/hooks (unless overwritten
132by another C<prio> setting). Lower priority handlers get executed
133earlier. The default priority is C<0>, and many built-in handlers are
134registered at priority C<-1000>, so lower priorities should not be used
135unless you know what you are doing.
136
137=item on_I<event> => \&cb
138
139Call the given code reference whenever the named event happens (event is
140something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
141handlers are recognised generally depends on the type of object these
142handlers attach to).
143
144See F<include/eventinc.h> for the full list of events supported, and their
145class.
146
147=item package => package::
148
149Look for sub functions of the name C<< on_I<event> >> in the given
150package and register them. Only handlers for eevents supported by the
151object/class are recognised.
152
153=back
154
155=item cf::attach_to_type $object_type, ...
156
157Attach handlers for a specific object type (e.g. TRANSPORT).
158
159=item cf::attach_to_objects ...
160
161Attach handlers to all objects. Do not use this except for debugging or
162very rare events, as handlers are (obviously) called for I<all> objects in
163the game.
164
165=item cf::attach_to_players ...
166
167Attach handlers to all players.
168
169=item cf::attach_to_maps ...
170
171Attach handlers to all maps.
172
173=item cf:register_attachment $name, ...
174
175=cut
176
177# the following variables are defined in .xs and must not be re-created
178our @CB_GLOBAL = (); # registry for all global events
179our @CB_OBJECT = (); # all objects (should not be used except in emergency)
180our @CB_PLAYER = ();
181our @CB_TYPE = (); # registry for type (cf-object class) based events
182our @CB_MAP = ();
183
184my %attachment;
185
186sub _attach_cb($\%$$$) {
187 my ($registry, $undo, $event, $prio, $cb) = @_;
188
189 use sort 'stable';
190
191 $cb = [$prio, $cb];
192
193 @{$registry->[$event]} = sort
194 { $a->[0] cmp $b->[0] }
195 @{$registry->[$event] || []}, $cb;
196
197 push @{$undo->{cb}}, [$event, $cb];
198}
199
200# attach handles attaching event callbacks
201# the only thing the caller has to do is pass the correct
202# registry (== where the callback attaches to).
203sub _attach(\@$@) {
204 my ($registry, $klass, @arg) = @_;
205
206 my $prio = 0;
207
208 my %undo = (
209 registry => $registry,
210 cb => [],
211 );
212
213 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
214
215 while (@arg) {
216 my $type = shift @arg;
217
218 if ($type eq "prio") {
219 $prio = shift @arg;
220
221 } elsif ($type eq "package") {
222 my $pkg = shift @arg;
223
224 while (my ($name, $id) = each %cb_id) {
225 if (my $cb = $pkg->can ($name)) {
226 _attach_cb $registry, %undo, $id, $prio, $cb;
227 }
228 }
229
230 } elsif (exists $cb_id{$type}) {
231 _attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
232
233 } elsif (ref $type) {
234 warn "attaching objects not supported, ignoring.\n";
235
236 } else {
237 shift @arg;
238 warn "attach argument '$type' not supported, ignoring.\n";
239 }
240 }
241
242 \%undo
243}
244
245sub _attach_attachment {
246 my ($klass, $obj, $name, @args) = q_;
247
248 my $res;
249
250 if (my $attach = $attachment{$name}) {
251 my $registry = $obj->registry;
252
253 $res = _attach @$registry, $klass, @$attach;
254
255 if (my $cb = delete $registry->[EVENT_OBJECT_INSTANTIATE]) {
256 for (@$cb) {
257 eval { $_->[1]->($obj, @args); };
258 if ($@) {
259 warn "$@";
260 warn "... while processing '$name' instantiate with args <@args>.\n";
261 }
262 }
263 }
264 } else {
265 warn "object uses attachment '$name' that is not available, postponing.\n";
266 }
267
268 push @{$obj->{_attachment}}, $name;
269
270 $res->{attachment} = $name;
271 $res
272}
273
274sub cf::object::attach {
275 my ($obj, $name, @args) = @_;
276
277 _attach_attachment KLASS_OBJECT, $obj, $name, @args;
278}
279
280sub cf::player::attach {
281 my ($obj, $name, @args) = @_;
282
283 _attach_attachment KLASS_PLAYER, $obj, $name, @args;
284}
285
286sub cf::map::attach {
287 my ($obj, $name, @args) = @_;
288
289 _attach_attachment KLASS_MAP, $obj, $name, @args;
290}
291
292sub attach_global {
293 _attach @CB_GLOBAL, KLASS_GLOBAL, @_
294}
295
296sub attach_to_type {
297 my $type = shift;
298
299 _attach @{$CB_TYPE[$type]}, 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} = [@_];
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 attach $obj, $name, @{$args || [] };
362 }
363}
364
365# basically do the same as instantiate, without calling instantiate
366sub reattach {
367 warn "reattach<@_>\n";#d#
368 my ($obj) = @_;
369 my $registry = $obj->registry;
370
371 for my $name (@{ $obj->{_attachment} }) {
372 if (my $attach = $attachment{$name}) {
373 _attach @$registry, KLASS_OBJECT, @$attach;
374 } else {
375 warn "object uses attachment '$name' that is not available, postponing.\n";
376 }
377 }
378
379 warn "reattach<@_, $_>\n";
380}
381
382sub object_freezer_save {
383 my ($filename, $objs) = @_;
384 warn "freeze $filename\n";#d#
385 use Data::Dumper; print Dumper $objs;
386
387 $filename .= ".pst";
388
389 if (@$objs) {
390 open my $fh, ">:raw", "$filename~";
391 chmod $fh, SAVE_MODE;
392 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
393 close $fh;
394 rename "$filename~", $filename;
395 } else {
396 unlink $filename;
397 }
398}
399
400sub object_thawer_load {
401 my ($filename) = @_;
402
403 warn "thaw $filename\n";#d#
404
405 open my $fh, "<:raw:perlio", "$filename.pst"
406 or return;
407
408 eval { local $/; (Storable::thaw <$fh>)->{objs} }
409}
410
411attach_to_objects
412 prio => -1000000,
413 on_clone => sub {
414 my ($src, $dst) = @_;
415
416 @{$dst->registry} = @{$src->registry};
417 warn "registry clone ", join ":", @{$src->registry};#d#
418
419 %$dst = %$src;
420
421 $dst->{_attachment} = [@{ $src->{_attachment} }]
422 if exists $src->{_attachment};
423
424 warn "clone<@_>\n";#d#
425 },
426;
427
428#############################################################################
429# old plug-in events
67 430
68sub inject_event { 431sub inject_event {
69 my ($data) = @_; 432 my $extension = shift;
433 my $event_code = shift;
70 434
71 my $cb = $hook[$data->{event_code}]{$data->{extension}} 435 my $cb = $hook[$event_code]{$extension}
72 or return; 436 or return;
73 437
74 $cb->($data) 438 &$cb
75} 439}
76 440
77sub inject_global_event { 441sub inject_global_event {
78 my ($data) = @_; 442 my $event = shift;
79 443
80 my $cb = $hook[$data->{event_code}] 444 my $cb = $hook[$event]
81 or return; 445 or return;
82 446
83 $_->($data) for values %$cb; 447 List::Util::max map &$_, values %$cb
84
85 ()
86} 448}
87 449
88sub inject_command { 450sub inject_command {
89 my ($name, $obj, $params) = @_; 451 my ($name, $obj, $params) = @_;
90 452
97 459
98sub register_command { 460sub register_command {
99 my ($name, $time, $cb) = @_; 461 my ($name, $time, $cb) = @_;
100 462
101 my $caller = caller; 463 my $caller = caller;
102
103 warn "registering command '$name/$time' to '$caller'"; 464 #warn "registering command '$name/$time' to '$caller'";
104 465
105 push @{ $command{$name} }, [$time, $cb, $caller]; 466 push @{ $command{$name} }, [$time, $cb, $caller];
106 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; 467 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
468}
469
470sub register_extcmd {
471 my ($name, $cb) = @_;
472
473 my $caller = caller;
474 #warn "registering extcmd '$name' to '$caller'";
475
476 $extcmd{$name} = [$cb, $caller];
477}
478
479sub register {
480 my ($base, $pkg) = @_;
481
482 #TODO
107} 483}
108 484
109sub load_extension { 485sub load_extension {
110 my ($path) = @_; 486 my ($path) = @_;
111 487
112 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 488 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
113 my $base = $1; 489 my $base = $1;
114 my $pkg = $1; 490 my $pkg = $1;
115 $pkg =~ s/[^[:word:]]/_/g; 491 $pkg =~ s/[^[:word:]]/_/g;
116 $pkg = "cf::ext::$pkg"; 492 $pkg = "ext::$pkg";
117 493
118 warn "loading '$path' into '$pkg'\n"; 494 warn "loading '$path' into '$pkg'\n";
119 495
120 open my $fh, "<:utf8", $path 496 open my $fh, "<:utf8", $path
121 or die "$path: $!"; 497 or die "$path: $!";
130 or die "$path: $@"; 506 or die "$path: $@";
131 507
132 push @exts, $pkg; 508 push @exts, $pkg;
133 $ext_pkg{$base} = $pkg; 509 $ext_pkg{$base} = $pkg;
134 510
135 no strict 'refs'; 511# no strict 'refs';
136
137# @{"$pkg\::ISA"} = cf::ext::; 512# @{"$pkg\::ISA"} = ext::;
138 513
139 for my $idx (0 .. $#EVENT) { 514 register $base, $pkg;
140 if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
141 warn "registering $EVENT[$idx] hook\n";
142 $hook[$idx]{$base} = $ref;
143 }
144 }
145} 515}
146 516
147sub unload_extension { 517sub unload_extension {
148 my ($pkg) = @_; 518 my ($pkg) = @_;
149 519
150 warn "removing extension $pkg\n"; 520 warn "removing extension $pkg\n";
151 521
152 # remove hooks 522 # remove hooks
523 #TODO
153 for my $idx (0 .. $#EVENT) { 524# for my $idx (0 .. $#PLUGIN_EVENT) {
154 delete $hook[$idx]{$pkg}; 525# delete $hook[$idx]{$pkg};
155 } 526# }
156 527
157 # remove commands 528 # remove commands
158 for my $name (keys %command) { 529 for my $name (keys %command) {
159 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; 530 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
160 531
165 delete $command{$name}; 536 delete $command{$name};
166 delete $COMMAND{"$name\000"}; 537 delete $COMMAND{"$name\000"};
167 } 538 }
168 } 539 }
169 540
541 # remove extcmds
542 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
543 delete $extcmd{$name};
544 }
545
546 if (my $cb = $pkg->can ("unload")) {
547 eval {
548 $cb->($pkg);
549 1
550 } or warn "$pkg unloaded, but with errors: $@";
551 }
552
170 Symbol::delete_package $pkg; 553 Symbol::delete_package $pkg;
171} 554}
172 555
173sub load_extensions { 556sub load_extensions {
174 my $LIBDIR = maps_directory "perl"; 557 my $LIBDIR = maps_directory "perl";
180 1 563 1
181 } or warn "$ext not loaded: $@"; 564 } or warn "$ext not loaded: $@";
182 } 565 }
183} 566}
184 567
568sub _perl_reload(&) {
569 my ($msg) = @_;
570
571 $msg->("reloading...");
572
573 eval {
574 # 1. cancel all watchers
575 $_->cancel for Event::all_watchers;
576
577 # 2. unload all extensions
578 for (@exts) {
579 $msg->("unloading <$_>");
580 unload_extension $_;
581 }
582
583 # 3. unload all modules loaded from $LIBDIR
584 while (my ($k, $v) = each %INC) {
585 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
586
587 $msg->("removing <$k>");
588 delete $INC{$k};
589
590 $k =~ s/\.pm$//;
591 $k =~ s/\//::/g;
592
593 if (my $cb = $k->can ("unload_module")) {
594 $cb->();
595 }
596
597 Symbol::delete_package $k;
598 }
599
600 # 4. get rid of safe::, as good as possible
601 Symbol::delete_package "safe::$_"
602 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
603
604 # 5. remove register_script_function callbacks
605 # TODO
606
607 # 6. unload cf.pm "a bit"
608 delete $INC{"cf.pm"};
609
610 # don't, removes xs symbols, too,
611 # and global variables created in xs
612 #Symbol::delete_package __PACKAGE__;
613
614 # 7. reload cf.pm
615 $msg->("reloading cf.pm");
616 require cf;
617 };
618 $msg->($@) if $@;
619
620 $msg->("reloaded");
621};
622
623sub perl_reload() {
624 _perl_reload {
625 warn $_[0];
626 print "$_[0]\n";
627 };
628}
629
185register_command "perl-reload", 0, sub { 630register_command "perl-reload", 0, sub {
186 my ($who, $arg) = @_; 631 my ($who, $arg) = @_;
187 632
188 if ($who->flag (FLAG_WIZ)) { 633 if ($who->flag (FLAG_WIZ)) {
189 $who->message ("reloading..."); 634 _perl_reload {
190 635 warn $_[0];
191 warn "reloading...\n"; 636 $who->message ($_[0]);
192 eval {
193 unload_extension $_ for @exts;
194 delete $INC{"cf.pm"};
195
196 # don't, removes xs symbols, too
197 #Symbol::delete_package $pkg;
198
199 require cf;
200 }; 637 };
201 warn $@ if $@; 638 }
202 $who->message ($@) if $@; 639};
203 warn "reloaded\n";
204 640
205 $who->message ("reloaded"); 641#############################################################################
642# extcmd framework, basically convert ext <msg>
643# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
644
645attach_to_players
646 on_extcmd => sub {
647 my ($pl, $buf) = @_;
648
649 my $msg = eval { from_json $buf };
650
651 if (ref $msg) {
652 if (my $cb = $extcmd{$msg->{msgtype}}) {
653 if (my %reply = $cb->[0]->($pl, $msg)) {
654 $pl->ext_reply ($msg->{msgid}, %reply);
655 }
656 }
657 } else {
658 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
659 }
660
661 cf::override;
662 },
663;
664
665#############################################################################
666# load/save/clean perl data associated with a map
667
668*cf::mapsupport::on_clean = sub {
669 my ($map) = @_;
670
671 my $path = $map->tmpname;
672 defined $path or return;
673
674 unlink "$path.cfperl";
675 unlink "$path.pst";
676};
677
678*cf::mapsupport::on_swapin =
679*cf::mapsupport::on_load = sub {
680 my ($map) = @_;
681
682 my $path = $map->tmpname;
683 $path = $map->path unless defined $path;
684
685 open my $fh, "<:raw", "$path.cfperl"
686 or return; # no perl data
687
688 my $data = Storable::thaw do { local $/; <$fh> };
689
690 $data->{version} <= 1
691 or return; # too new
692
693 $map->_set_obs ($data->{obs});
694};
695
696attach_to_maps prio => -10000, package => cf::mapsupport::;
697
698#############################################################################
699# load/save perl data associated with player->ob objects
700
701sub all_objects(@) {
702 @_, map all_objects ($_->inv), @_
703}
704
705attach_to_players
706 on_load => sub {
707 my ($pl, $path) = @_;
708
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");
712
713 %$o = %{ Storable::thaw pack "H*", $value };
714 }
715 }
716 },
717;
718
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];
206 } else { 750 } else {
207 $who->message ("Intruder Alert!"); 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}"
208 } 809 ;
209}; 810
811 sub_generation_inc;
812 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
813 sub_generation_inc;
814
815 if ($@) {
816 warn "$@";
817 warn "while executing safe code '$code'\n";
818 warn "with arguments " . (join " ", %vars) . "\n";
819 }
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
840
841register "<global>", __PACKAGE__;
842
843unshift @INC, $LIBDIR;
210 844
211load_extensions; 845load_extensions;
212 846
847$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
2131 8641
214 865

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines