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/cvs/deliantra/server/lib/cf.pm
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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.16 by root, Mon Jun 12 13:25:27 2006 UTC vs.
Revision 1.27 by root, Fri Jul 21 00:51:39 2006 UTC

1package cf; 1package cf;
2 2
3use Symbol; 3use Symbol;
4use List::Util; 4use List::Util;
5use Storable; 5use Storable;
6use Opcode;
7use Safe;
8use Safe::Hole;
9
10use Event;
11$Event::Eval = 1; # no idea why this is required, but it is
6 12
7use strict; 13use strict;
8 14
9our %COMMAND; 15our %COMMAND;
10our @EVENT; 16our @EVENT;
11our %PROP_TYPE; 17our %PROP_TYPE;
12our %PROP_IDX; 18our %PROP_IDX;
19our $LIBDIR = maps_directory "perl";
13 20
14BEGIN { 21BEGIN {
15 @EVENT = map lc, @EVENT; 22 @EVENT = map lc, @EVENT;
16 23
17 *CORE::GLOBAL::warn = sub { 24 *CORE::GLOBAL::warn = sub {
… …
58prop_gen MAP_PROP => "cf::map"; 65prop_gen MAP_PROP => "cf::map";
59prop_gen ARCH_PROP => "cf::arch"; 66prop_gen ARCH_PROP => "cf::arch";
60 67
61# guessed hierarchies 68# guessed hierarchies
62 69
63@cf::object::player::ISA = 'cf::object'; 70@ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
64@cf::object::map::ISA = 'cf::object'; 71@ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object';
72
73# we bless all objects into derived classes to force a method lookup
74# within the Safe compartment.
75for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region)) {
76 no strict 'refs';
77 @{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
78}
79
80$Event::DIED = sub {
81 warn "error in event callback: @_";
82};
65 83
66my %ext_pkg; 84my %ext_pkg;
67my @exts; 85my @exts;
68my @hook; 86my @hook;
69my %command; 87my %command;
… …
153 171
154 push @exts, $pkg; 172 push @exts, $pkg;
155 $ext_pkg{$base} = $pkg; 173 $ext_pkg{$base} = $pkg;
156 174
157# no strict 'refs'; 175# no strict 'refs';
158# @{"$pkg\::ISA"} = cf::ext::; 176# @{"$pkg\::ISA"} = ext::;
159 177
160 register $base, $pkg; 178 register $base, $pkg;
161} 179}
162 180
163sub unload_extension { 181sub unload_extension {
164 my ($pkg) = @_; 182 my ($pkg) = @_;
165 183
166 warn "removing extension $pkg\n"; 184 warn "removing extension $pkg\n";
185
186 if (my $cb = $pkg->can ("on_unload")) {
187 $cb->($pkg);
188 }
167 189
168 # remove hooks 190 # remove hooks
169 for my $idx (0 .. $#EVENT) { 191 for my $idx (0 .. $#EVENT) {
170 delete $hook[$idx]{$pkg}; 192 delete $hook[$idx]{$pkg};
171 } 193 }
… …
209 if ($who->flag (FLAG_WIZ)) { 231 if ($who->flag (FLAG_WIZ)) {
210 $who->message ("reloading..."); 232 $who->message ("reloading...");
211 233
212 warn "reloading...\n"; 234 warn "reloading...\n";
213 eval { 235 eval {
236 # 1. cancel all watchers
237 $_->cancel for Event::all_watchers;
238
239 # 2. unload all extensions
240 for (@exts) {
241 $who->message ("unloading <$_>");
214 unload_extension $_ for @exts; 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"
215 delete $INC{"cf.pm"}; 270 delete $INC{"cf.pm"};
216 271
217 # don't, removes xs symbols, too 272 # don't, removes xs symbols, too
218 #Symbol::delete_package $pkg; 273 #Symbol::delete_package __PACKAGE__;
219 274
275 # 7. reload cf.pm
276 $who->message ("reloading cf.pm");
220 require cf; 277 require cf;
221 }; 278 };
222 warn $@ if $@; 279 warn $@ if $@;
223 $who->message ($@) if $@; 280 $who->message ($@) if $@;
224 warn "reloaded\n"; 281 warn "reloaded\n";
… …
303# load/save perl data associated with player->ob objects 360# load/save perl data associated with player->ob objects
304 361
305*on_player_load = sub { 362*on_player_load = sub {
306 my ($ob, $path) = @_; 363 my ($ob, $path) = @_;
307 364
308 if (open my $fh, "<:raw", "$path.cfperl") {
309
310 #d##TODO#remove
311
312 my $data = Storable::thaw do { local $/; <$fh> };
313
314 $data->{version} <= 1
315 or return; # too new
316
317 %$ob = %{$data->{ob}};
318 return;
319 }
320
321 for my $o ($ob, $ob->inv) { 365 for my $o ($ob, $ob->inv) {
322 if (my $value = $o->get_ob_key_value ("_perl_data")) { 366 if (my $value = $o->get_ob_key_value ("_perl_data")) {
323 $o->set_ob_key_value ("_perl_data"); 367 $o->set_ob_key_value ("_perl_data");
324 368
325 %$o = %{ Storable::thaw pack "H*", $value }; 369 %$o = %{ Storable::thaw pack "H*", $value };
… …
330*on_player_save = sub { 374*on_player_save = sub {
331 my ($ob, $path) = @_; 375 my ($ob, $path) = @_;
332 376
333 $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_) 377 $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
334 for grep %$_, $ob, $ob->inv; 378 for grep %$_, $ob, $ob->inv;
335
336 unlink "$path.cfperl";#d##TODO#remove
337}; 379};
380
381#############################################################################
382# core extensions - in perl
383
384=item cf::player::exists $login
385
386Returns true when the given account exists.
387
388=cut
389
390sub cf::player::exists($) {
391 cf::player::find $_[0]
392 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
393}
394
395# rough implementation of a future "reply" method that works
396# with dialog boxes.
397sub cf::object::player::reply($$$;$) {
398 my ($self, $npc, $msg, $flags) = @_;
399
400 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
401
402 if ($self->{record_replies}) {
403 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
404 } else {
405 $msg = $npc->name . " says: $msg" if $npc;
406 $self->message ($msg, $flags);
407 }
408}
409
410#############################################################################
411# map scripting support
412
413our $safe = new Safe "ext";
414our $safe_hole = new Safe::Hole;
415
416$SIG{FPE} = 'IGNORE';
417
418$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
419
420# here we export the classes and methods available to script code
421
422for (
423 ["cf::object" => qw(contr pay_amount pay_player)],
424 ["cf::object::player" => qw(player)],
425 ["cf::player" => qw(peaceful)],
426) {
427 no strict 'refs';
428 my ($pkg, @funs) = @$_;
429 *{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
430 for @funs;
431}
432
433sub safe_eval($;@) {
434 my ($code, %vars) = @_;
435
436 my $qcode = $code;
437 $qcode =~ s/"/‟/g; # not allowed in #line filenames
438 $qcode =~ s/\n/\\n/g;
439
440 local $_;
441 local @ext::cf::_safe_eval_args = values %vars;
442
443 $code =
444 "do {\n"
445 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
446 . "#line 0 \"{$qcode}\"\n"
447 . $code
448 . "\n}"
449 ;
450
451 sub_generation_inc;
452 my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code);
453 sub_generation_inc;
454
455 wantarray ? @res : $res[0]
456}
457
458sub register_script_function {
459 my ($fun, $cb) = @_;
460
461 no strict 'refs';
462 *{"ext::$fun"} = $safe_hole->wrap ($cb);
463}
464
465#############################################################################
466# initialisation
338 467
339register "<global>", __PACKAGE__; 468register "<global>", __PACKAGE__;
340 469
470unshift @INC, $LIBDIR;
471
341load_extensions; 472load_extensions;
342 473
3431 4741
344 475

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