ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.70 by root, Sun Oct 1 10:55:37 2006 UTC vs.
Revision 1.103 by root, Sat Dec 30 10:16:11 2006 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18
		19	use IO::AIO 2.3;
		20	use YAML::Syck ();
10	use Time::HiRes;	21	use Time::HiRes;
11	use Event;	22
12	$Event::Eval = 1; # no idea why this is required, but it is	23	use Event; $Event::Eval = 1; # no idea why this is required, but it is
13		24
14	use strict;	25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		26	$YAML::Syck::ImplicitUnicode = 1;
15		27
16	_init_vars;	28	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
17		29
		30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		31
18	our %COMMAND = ();	32	our %COMMAND = ();
		33	our %COMMAND_TIME = ();
		34	our %EXTCMD = ();
		35
19	our @EVENT;	36	our @EVENT;
20	our $LIBDIR = maps_directory "perl";	37	our $LIBDIR = datadir . "/ext";
21		38
22	our $TICK = MAX_TIME * 1e-6;	39	our $TICK = MAX_TIME * 1e-6;
23	our $TICK_WATCHER;	40	our $TICK_WATCHER;
24	our $NEXT_TICK;	41	our $NEXT_TICK;
		42	our $NOW;
25		43
26	our %CFG;	44	our %CFG;
27		45
		46	our $UPTIME; $UPTIME ||= time;
		47	our $RUNTIME;
		48
		49	our %MAP; # all maps
		50	our $LINK_MAP; # the special {link} map
		51	our $FREEZE;
		52
		53	binmode STDOUT;
		54	binmode STDERR;
		55
		56	# read virtual server time, if available
		57	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		58	open my $fh, "<", cf::localdir . "/runtime"
		59	or die "unable to read runtime file: $!";
		60	$RUNTIME = <$fh> + 0.;
		61	}
		62
		63	mkdir cf::localdir;
		64	mkdir cf::localdir . "/" . cf::playerdir;
		65	mkdir cf::localdir . "/" . cf::tmpdir;
		66	mkdir cf::localdir . "/" . cf::uniquedir;
		67
		68	our %EXT_CORO;
		69
28	#############################################################################	70	#############################################################################
29		71
30	=head2 GLOBAL VARIABLES	72	=head2 GLOBAL VARIABLES
31		73
32	=over 4	74	=over 4
		75
		76	=item $cf::UPTIME
		77
		78	The timestamp of the server start (so not actually an uptime).
		79
		80	=item $cf::RUNTIME
		81
		82	The time this server has run, starts at 0 and is increased by $cf::TICK on
		83	every server tick.
33		84
34	=item $cf::LIBDIR	85	=item $cf::LIBDIR
35		86
36	The perl library directory, where extensions and cf-specific modules can	87	The perl library directory, where extensions and cf-specific modules can
37	be found. It will be added to C<@INC> automatically.	88	be found. It will be added to C<@INC> automatically.
		89
		90	=item $cf::NOW
		91
		92	The time of the last (current) server tick.
38		93
39	=item $cf::TICK	94	=item $cf::TICK
40		95
41	The interval between server ticks, in seconds.	96	The interval between server ticks, in seconds.
42		97
…		…
50	=cut	105	=cut
51		106
52	BEGIN {	107	BEGIN {
53	*CORE::GLOBAL::warn = sub {	108	*CORE::GLOBAL::warn = sub {
54	my $msg = join "", @_;	109	my $msg = join "", @_;
		110	utf8::encode $msg;
		111
55	$msg .= "\n"	112	$msg .= "\n"
56	unless $msg =~ /\n$/;	113	unless $msg =~ /\n$/;
57		114
58	print STDERR "cfperl: $msg";
59	LOG llevError, "cfperl: $msg";	115	LOG llevError, "cfperl: $msg";
60	};	116	};
61	}	117	}
62		118
		119	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		120	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		121	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		122	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		123	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
63	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	124	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
64		125
65	# we bless all objects into (empty) derived classes to force a method lookup	126	# we bless all objects into (empty) derived classes to force a method lookup
66	# within the Safe compartment.	127	# within the Safe compartment.
67	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	128	for my $pkg (qw(
		129	cf::global cf::attachable
		130	cf::object cf::object::player
		131	cf::client cf::player
		132	cf::arch cf::living
		133	cf::map cf::party cf::region
		134	)) {
68	no strict 'refs';	135	no strict 'refs';
69	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	136	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
70	}	137	}
71		138
72	$Event::DIED = sub {	139	$Event::DIED = sub {
…		…
74	};	141	};
75		142
76	my %ext_pkg;	143	my %ext_pkg;
77	my @exts;	144	my @exts;
78	my @hook;	145	my @hook;
79	my %command;
80	my %extcmd;
81		146
82	=head2 UTILITY FUNCTIONS	147	=head2 UTILITY FUNCTIONS
83		148
84	=over 4	149	=over 4
85		150
…		…
107	sub to_json($) {	172	sub to_json($) {
108	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	173	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
109	JSON::Syck::Dump $_[0]	174	JSON::Syck::Dump $_[0]
110	}	175	}
111		176
		177	=item $coro = cf::coro { BLOCK }
		178
		179	Creates and returns a new coro. This coro is automcatially being canceled
		180	when the extension calling this is being unloaded.
		181
		182	=cut
		183
		184	sub coro(&) {
		185	my $cb = shift;
		186
		187	my $coro; $coro = async {
		188	eval {
		189	$cb->();
		190	};
		191	warn $@ if $@;
		192	};
		193
		194	$coro->on_destroy (sub {
		195	delete $EXT_CORO{$coro+0};
		196	});
		197	$EXT_CORO{$coro+0} = $coro;
		198
		199	$coro
		200	}
		201
112	=back	202	=back
113		203
		204	=cut
		205
114	#############################################################################	206	#############################################################################
115		207
116	=head2 EVENTS AND OBJECT ATTACHMENTS	208	=head2 ATTACHABLE OBJECTS
		209
		210	Many objects in crossfire are so-called attachable objects. That means you can
		211	attach callbacks/event handlers (a collection of which is called an "attachment")
		212	to it. All such attachable objects support the following methods.
		213
		214	In the following description, CLASS can be any of C<global>, C<object>
		215	C<player>, C<client> or C<map> (i.e. the attachable objects in
		216	crossfire+).
117		217
118	=over 4	218	=over 4
119		219
120	=item $object->attach ($attachment, key => $value...)
121
122	=item $object->detach ($attachment)
123
124	Attach/detach a pre-registered attachment to an object.
125
126	=item $player->attach ($attachment, key => $value...)
127
128	=item $player->detach ($attachment)
129
130	Attach/detach a pre-registered attachment to a player.
131
132	=item $map->attach ($attachment, key => $value...)	220	=item $attachable->attach ($attachment, key => $value...)
133		221
134	=item $map->detach ($attachment)	222	=item $attachable->detach ($attachment)
135		223
136	Attach/detach a pre-registered attachment to a map.	224	Attach/detach a pre-registered attachment to a specific object and give it
		225	the specified key/value pairs as arguments.
137		226
138	=item $bool = $object->attached ($name)	227	Example, attach a minesweeper attachment to the given object, making it a
		228	10x10 minesweeper game:
139		229
140	=item $bool = $player->attached ($name)	230	$obj->attach (minesweeper => width => 10, height => 10);
141		231
142	=item $bool = $map->attached ($name)	232	=item $bool = $attachable->attached ($name)
143		233
144	Checks wether the named attachment is currently attached to the object.	234	Checks wether the named attachment is currently attached to the object.
145		235
146	=item cf::attach_global ...	236	=item cf::CLASS->attach ...
147		237
148	Attach handlers for global events.	238	=item cf::CLASS->detach ...
149		239
150	This and all following C<attach_*>-functions expect any number of the	240	Define an anonymous attachment and attach it to all objects of the given
151	following handler/hook descriptions:	241	CLASS. See the next function for an explanation of its arguments.
		242
		243	You can attach to global events by using the C<cf::global> class.
		244
		245	Example, log all player logins:
		246
		247	cf::player->attach (
		248	on_login => sub {
		249	my ($pl) = @_;
		250	...
		251	},
		252	);
		253
		254	Example, attach to the jeweler skill:
		255
		256	cf::object->attach (
		257	type => cf::SKILL,
		258	subtype => cf::SK_JEWELER,
		259	on_use_skill => sub {
		260	my ($sk, $ob, $part, $dir, $msg) = @_;
		261	...
		262	},
		263	);
		264
		265	=item cf::CLASS::attachment $name, ...
		266
		267	Register an attachment by C<$name> through which attachable objects of the
		268	given CLASS can refer to this attachment.
		269
		270	Some classes such as crossfire maps and objects can specify attachments
		271	that are attached at load/instantiate time, thus the need for a name.
		272
		273	These calls expect any number of the following handler/hook descriptions:
152		274
153	=over 4	275	=over 4
154		276
155	=item prio => $number	277	=item prio => $number
156		278
…		…
158	by another C<prio> setting). Lower priority handlers get executed	280	by another C<prio> setting). Lower priority handlers get executed
159	earlier. The default priority is C<0>, and many built-in handlers are	281	earlier. The default priority is C<0>, and many built-in handlers are
160	registered at priority C<-1000>, so lower priorities should not be used	282	registered at priority C<-1000>, so lower priorities should not be used
161	unless you know what you are doing.	283	unless you know what you are doing.
162		284
		285	=item type => $type
		286
		287	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		288	given type of objects only (the additional parameter C<subtype> can be
		289	used to further limit to the given subtype).
		290
163	=item on_I<event> => \&cb	291	=item on_I<event> => \&cb
164		292
165	Call the given code reference whenever the named event happens (event is	293	Call the given code reference whenever the named event happens (event is
166	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	294	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
167	handlers are recognised generally depends on the type of object these	295	handlers are recognised generally depends on the type of object these
…		…
176	package and register them. Only handlers for eevents supported by the	304	package and register them. Only handlers for eevents supported by the
177	object/class are recognised.	305	object/class are recognised.
178		306
179	=back	307	=back
180		308
181	=item cf::attach_to_type $object_type, $subtype, ...	309	Example, define an attachment called "sockpuppet" that calls the given
		310	event handler when a monster attacks:
182		311
183	Attach handlers for a specific object type (e.g. TRANSPORT) and	312	cf::object::attachment sockpuppet =>
184	subtype. If C<$subtype> is zero or undef, matches all objects of the given	313	on_skill_attack => sub {
185	type.	314	my ($self, $victim) = @_;
186		315	...
187	=item cf::attach_to_objects ...
188
189	Attach handlers to all objects. Do not use this except for debugging or
190	very rare events, as handlers are (obviously) called for I<all> objects in
191	the game.
192
193	=item cf::attach_to_players ...
194
195	Attach handlers to all players.
196
197	=item cf::attach_to_maps ...
198
199	Attach handlers to all maps.
200
201	=item cf:register_attachment $name, ...
202
203	Register an attachment by name through which objects can refer to this
204	attachment.
205
206	=item cf:register_player_attachment $name, ...
207
208	Register an attachment by name through which players can refer to this
209	attachment.
210
211	=item cf:register_map_attachment $name, ...
212
213	Register an attachment by name through which maps can refer to this
214	attachment.
215
216	=cut
217
218	# the following variables are defined in .xs and must not be re-created
219	our @CB_GLOBAL = (); # registry for all global events
220	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
221	our @CB_PLAYER = ();
222	our @CB_TYPE = (); # registry for type (cf-object class) based events
223	our @CB_MAP = ();
224
225	my %attachment;
226
227	sub _attach_cb($\%$$$) {
228	my ($registry, $undo, $event, $prio, $cb) = @_;
229
230	use sort 'stable';
231
232	$cb = [$prio, $cb];
233
234	@{$registry->[$event]} = sort
235	{ $a->[0] cmp $b->[0] }
236	@{$registry->[$event] || []}, $cb;
237
238	push @{$undo->{cb}}, [$event, $cb];
239	}
240
241	# attach handles attaching event callbacks
242	# the only thing the caller has to do is pass the correct
243	# registry (== where the callback attaches to).
244	sub _attach(\@$@) {
245	my ($registry, $klass, @arg) = @_;
246
247	my $prio = 0;
248
249	my %undo = (
250	registry => $registry,
251	cb => [],
252	);
253
254	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
255
256	while (@arg) {
257	my $type = shift @arg;
258
259	if ($type eq "prio") {
260	$prio = shift @arg;
261
262	} elsif ($type eq "package") {
263	my $pkg = shift @arg;
264
265	while (my ($name, $id) = each %cb_id) {
266	if (my $cb = $pkg->can ($name)) {
267	_attach_cb $registry, %undo, $id, $prio, $cb;
268	}
269	}	316	}
270
271	} elsif (exists $cb_id{$type}) {
272	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
273
274	} elsif (ref $type) {
275	warn "attaching objects not supported, ignoring.\n";
276
277	} else {
278	shift @arg;
279	warn "attach argument '$type' not supported, ignoring.\n";
280	}
281	}
282
283	\%undo
284	}
285
286	sub _attach_attachment {
287	my ($obj, $name, %arg) = @_;
288
289	return if exists $obj->{_attachment}{$name};
290
291	my $res;
292
293	if (my $attach = $attachment{$name}) {
294	my $registry = $obj->registry;
295
296	for (@$attach) {
297	my ($klass, @attach) = @$_;
298	$res = _attach @$registry, $klass, @attach;
299	}
300
301	$obj->{$name} = \%arg;
302	} else {
303	warn "object uses attachment '$name' that is not available, postponing.\n";
304	}
305
306	$obj->{_attachment}{$name} = undef;
307
308	$res->{attachment} = $name;
309	$res
310	}
311
312	*cf::object::attach =
313	*cf::player::attach =
314	*cf::map::attach = sub {
315	my ($obj, $name, %arg) = @_;
316
317	_attach_attachment $obj, $name, %arg;
318	};
319
320	# all those should be optimised
321	*cf::object::detach =
322	*cf::player::detach =
323	*cf::map::detach = sub {
324	my ($obj, $name) = @_;
325
326	delete $obj->{_attachment}{$name};
327	reattach ($obj);
328	};
329
330	*cf::object::attached =
331	*cf::player::attached =
332	*cf::map::attached = sub {
333	my ($obj, $name) = @_;
334
335	exists $obj->{_attachment}{$name}
336	};
337
338	sub attach_global {
339	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
340	}
341
342	sub attach_to_type {
343	my $type = shift;
344	my $subtype = shift;
345
346	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
347	}
348
349	sub attach_to_objects {
350	_attach @CB_OBJECT, KLASS_OBJECT, @_
351	}
352
353	sub attach_to_players {
354	_attach @CB_PLAYER, KLASS_PLAYER, @_
355	}
356
357	sub attach_to_maps {
358	_attach @CB_MAP, KLASS_MAP, @_
359	}
360
361	sub register_attachment {
362	my $name = shift;
363
364	$attachment{$name} = [[KLASS_OBJECT, @_]];
365	}
366
367	sub register_player_attachment {
368	my $name = shift;
369
370	$attachment{$name} = [[KLASS_PLAYER, @_]];
371	}
372
373	sub register_map_attachment {
374	my $name = shift;
375
376	$attachment{$name} = [[KLASS_MAP, @_]];
377	}
378
379	our $override;
380	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
381
382	sub override {
383	$override = 1;
384	@invoke_results = ();
385	}
386
387	sub do_invoke {
388	my $event = shift;
389	my $callbacks = shift;
390
391	@invoke_results = ();
392
393	local $override;
394
395	for (@$callbacks) {
396	eval { &{$_->[1]} };
397
398	if ($@) {
399	warn "$@";
400	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
401	override;
402	}
403
404	return 1 if $override;
405	}
406
407	0	317	}
408	}
409		318
410	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	319	=item $attachable->valid
411
412	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
413
414	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
415
416	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
417
418	Generate a global/object/player/map-specific event with the given arguments.
419
420	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
421	removed in future versions), and there is no public API to access override
422	results (if you must, access C<@cf::invoke_results> directly).
423
424	=back
425
426	#############################################################################
427
428	=head2 METHODS VALID FOR ALL CORE OBJECTS
429
430	=over 4
431
432	=item $object->valid, $player->valid, $map->valid
433		320
434	Just because you have a perl object does not mean that the corresponding	321	Just because you have a perl object does not mean that the corresponding
435	C-level object still exists. If you try to access an object that has no	322	C-level object still exists. If you try to access an object that has no
436	valid C counterpart anymore you get an exception at runtime. This method	323	valid C counterpart anymore you get an exception at runtime. This method
437	can be used to test for existence of the C object part without causing an	324	can be used to test for existence of the C object part without causing an
438	exception.	325	exception.
439		326
		327	=cut
		328
		329	# the following variables are defined in .xs and must not be re-created
		330	our @CB_GLOBAL = (); # registry for all global events
		331	our @CB_ATTACHABLE = (); # registry for all attachables
		332	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		333	our @CB_PLAYER = ();
		334	our @CB_CLIENT = ();
		335	our @CB_TYPE = (); # registry for type (cf-object class) based events
		336	our @CB_MAP = ();
		337
		338	my %attachment;
		339
		340	sub _attach_cb($$$$) {
		341	my ($registry, $event, $prio, $cb) = @_;
		342
		343	use sort 'stable';
		344
		345	$cb = [$prio, $cb];
		346
		347	@{$registry->[$event]} = sort
		348	{ $a->[0] cmp $b->[0] }
		349	@{$registry->[$event] || []}, $cb;
		350	}
		351
		352	# hack
		353	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		354
		355	# attach handles attaching event callbacks
		356	# the only thing the caller has to do is pass the correct
		357	# registry (== where the callback attaches to).
		358	sub _attach {
		359	my ($registry, $klass, @arg) = @_;
		360
		361	my $object_type;
		362	my $prio = 0;
		363	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		364
		365	#TODO: get rid of this hack
		366	if ($attachable_klass{$klass}) {
		367	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		368	}
		369
		370	while (@arg) {
		371	my $type = shift @arg;
		372
		373	if ($type eq "prio") {
		374	$prio = shift @arg;
		375
		376	} elsif ($type eq "type") {
		377	$object_type = shift @arg;
		378	$registry = $CB_TYPE[$object_type] ||= [];
		379
		380	} elsif ($type eq "subtype") {
		381	defined $object_type or Carp::croak "subtype specified without type";
		382	my $object_subtype = shift @arg;
		383	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		384
		385	} elsif ($type eq "package") {
		386	my $pkg = shift @arg;
		387
		388	while (my ($name, $id) = each %cb_id) {
		389	if (my $cb = $pkg->can ($name)) {
		390	_attach_cb $registry, $id, $prio, $cb;
		391	}
		392	}
		393
		394	} elsif (exists $cb_id{$type}) {
		395	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		396
		397	} elsif (ref $type) {
		398	warn "attaching objects not supported, ignoring.\n";
		399
		400	} else {
		401	shift @arg;
		402	warn "attach argument '$type' not supported, ignoring.\n";
		403	}
		404	}
		405	}
		406
		407	sub _object_attach {
		408	my ($obj, $name, %arg) = @_;
		409
		410	return if exists $obj->{_attachment}{$name};
		411
		412	if (my $attach = $attachment{$name}) {
		413	my $registry = $obj->registry;
		414
		415	for (@$attach) {
		416	my ($klass, @attach) = @$_;
		417	_attach $registry, $klass, @attach;
		418	}
		419
		420	$obj->{$name} = \%arg;
		421	} else {
		422	warn "object uses attachment '$name' that is not available, postponing.\n";
		423	}
		424
		425	$obj->{_attachment}{$name} = undef;
		426	}
		427
		428	sub cf::attachable::attach {
		429	if (ref $_[0]) {
		430	_object_attach @_;
		431	} else {
		432	_attach shift->_attach_registry, @_;
		433	}
		434	};
		435
		436	# all those should be optimised
		437	sub cf::attachable::detach {
		438	my ($obj, $name) = @_;
		439
		440	if (ref $obj) {
		441	delete $obj->{_attachment}{$name};
		442	reattach ($obj);
		443	} else {
		444	Carp::croak "cannot, currently, detach class attachments";
		445	}
		446	};
		447
		448	sub cf::attachable::attached {
		449	my ($obj, $name) = @_;
		450
		451	exists $obj->{_attachment}{$name}
		452	}
		453
		454	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		455	eval "#line " . __LINE__ . " 'cf.pm'
		456	sub cf::\L$klass\E::_attach_registry {
		457	(\\\@CB_$klass, KLASS_$klass)
		458	}
		459
		460	sub cf::\L$klass\E::attachment {
		461	my \$name = shift;
		462
		463	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		464	}
		465	";
		466	die if $@;
		467	}
		468
		469	our $override;
		470	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		471
		472	sub override {
		473	$override = 1;
		474	@invoke_results = ();
		475	}
		476
		477	sub do_invoke {
		478	my $event = shift;
		479	my $callbacks = shift;
		480
		481	@invoke_results = ();
		482
		483	local $override;
		484
		485	for (@$callbacks) {
		486	eval { &{$_->[1]} };
		487
		488	if ($@) {
		489	warn "$@";
		490	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		491	override;
		492	}
		493
		494	return 1 if $override;
		495	}
		496
		497	0
		498	}
		499
		500	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		501
		502	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		503
		504	Generate an object-specific event with the given arguments.
		505
		506	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		507	removed in future versions), and there is no public API to access override
		508	results (if you must, access C<@cf::invoke_results> directly).
		509
440	=back	510	=back
441		511
442	=cut	512	=cut
443
444	*cf::object::valid =
445	*cf::player::valid =
446	*cf::map::valid = \&cf::_valid;
447		513
448	#############################################################################	514	#############################################################################
449	# object support	515	# object support
450		516
451	sub instantiate {
452	my ($obj, $data) = @_;
453
454	$data = from_json $data;
455
456	for (@$data) {
457	my ($name, $args) = @$_;
458
459	$obj->attach ($name, %{$args || {} });
460	}
461	}
462
463	# basically do the same as instantiate, without calling instantiate
464	sub reattach {	517	sub reattach {
		518	# basically do the same as instantiate, without calling instantiate
465	my ($obj) = @_;	519	my ($obj) = @_;
		520
466	my $registry = $obj->registry;	521	my $registry = $obj->registry;
467		522
468	@$registry = ();	523	@$registry = ();
469		524
470	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	525	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
471		526
472	for my $name (keys %{ $obj->{_attachment} || {} }) {	527	for my $name (keys %{ $obj->{_attachment} || {} }) {
473	if (my $attach = $attachment{$name}) {	528	if (my $attach = $attachment{$name}) {
474	for (@$attach) {	529	for (@$attach) {
475	my ($klass, @attach) = @$_;	530	my ($klass, @attach) = @$_;
476	_attach @$registry, $klass, @attach;	531	_attach $registry, $klass, @attach;
477	}	532	}
478	} else {	533	} else {
479	warn "object uses attachment '$name' that is not available, postponing.\n";	534	warn "object uses attachment '$name' that is not available, postponing.\n";
480	}	535	}
481	}	536	}
482	}	537	}
		538
		539	cf::attachable->attach (
		540	prio => -1000000,
		541	on_instantiate => sub {
		542	my ($obj, $data) = @_;
		543
		544	$data = from_json $data;
		545
		546	for (@$data) {
		547	my ($name, $args) = @$_;
		548
		549	$obj->attach ($name, %{$args || {} });
		550	}
		551	},
		552	on_reattach => \&reattach,
		553	on_clone => sub {
		554	my ($src, $dst) = @_;
		555
		556	@{$dst->registry} = @{$src->registry};
		557
		558	%$dst = %$src;
		559
		560	%{$dst->{_attachment}} = %{$src->{_attachment}}
		561	if exists $src->{_attachment};
		562	},
		563	);
483		564
484	sub object_freezer_save {	565	sub object_freezer_save {
485	my ($filename, $rdata, $objs) = @_;	566	my ($filename, $rdata, $objs) = @_;
486		567
487	if (length $$rdata) {	568	if (length $$rdata) {
…		…
510	unlink $filename;	591	unlink $filename;
511	unlink "$filename.pst";	592	unlink "$filename.pst";
512	}	593	}
513	}	594	}
514		595
		596	sub object_freezer_as_string {
		597	my ($rdata, $objs) = @_;
		598
		599	use Data::Dumper;
		600
		601	$$rdata . Dumper $objs
		602	}
		603
515	sub object_thawer_load {	604	sub object_thawer_load {
516	my ($filename) = @_;	605	my ($filename) = @_;
517		606
518	local $/;	607	local $/;
519		608
…		…
529	}	618	}
530		619
531	()	620	()
532	}	621	}
533		622
534	attach_to_objects
535	prio => -1000000,
536	on_clone => sub {
537	my ($src, $dst) = @_;
538
539	@{$dst->registry} = @{$src->registry};
540
541	%$dst = %$src;
542
543	%{$dst->{_attachment}} = %{$src->{_attachment}}
544	if exists $src->{_attachment};
545	},
546	;
547
548	#############################################################################	623	#############################################################################
549	# old plug-in events	624	# command handling &c
550		625
551	sub inject_event {	626	=item cf::register_command $name => \&callback($ob,$args);
552	my $extension = shift;
553	my $event_code = shift;
554		627
555	my $cb = $hook[$event_code]{$extension}	628	Register a callback for execution when the client sends the user command
556	or return;	629	$name.
557		630
558	&$cb	631	=cut
559	}
560
561	sub inject_global_event {
562	my $event = shift;
563
564	my $cb = $hook[$event]
565	or return;
566
567	List::Util::max map &$_, values %$cb
568	}
569
570	sub inject_command {
571	my ($name, $obj, $params) = @_;
572
573	for my $cmd (@{ $command{$name} }) {
574	$cmd->[1]->($obj, $params);
575	}
576
577	-1
578	}
579		632
580	sub register_command {	633	sub register_command {
581	my ($name, $time, $cb) = @_;	634	my ($name, $cb) = @_;
582		635
583	my $caller = caller;	636	my $caller = caller;
584	#warn "registering command '$name/$time' to '$caller'";	637	#warn "registering command '$name/$time' to '$caller'";
585		638
586	push @{ $command{$name} }, [$time, $cb, $caller];	639	push @{ $COMMAND{$name} }, [$caller, $cb];
587	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
588	}	640	}
		641
		642	=item cf::register_extcmd $name => \&callback($pl,$packet);
		643
		644	Register a callbackf ro execution when the client sends an extcmd packet.
		645
		646	If the callback returns something, it is sent back as if reply was being
		647	called.
		648
		649	=cut
589		650
590	sub register_extcmd {	651	sub register_extcmd {
591	my ($name, $cb) = @_;	652	my ($name, $cb) = @_;
592		653
593	my $caller = caller;	654	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";	655	#warn "registering extcmd '$name' to '$caller'";
595		656
596	$extcmd{$name} = [$cb, $caller];	657	$EXTCMD{$name} = [$cb, $caller];
597	}	658	}
		659
		660	cf::player->attach (
		661	on_command => sub {
		662	my ($pl, $name, $params) = @_;
		663
		664	my $cb = $COMMAND{$name}
		665	or return;
		666
		667	for my $cmd (@$cb) {
		668	$cmd->[1]->($pl->ob, $params);
		669	}
		670
		671	cf::override;
		672	},
		673	on_extcmd => sub {
		674	my ($pl, $buf) = @_;
		675
		676	my $msg = eval { from_json $buf };
		677
		678	if (ref $msg) {
		679	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		680	if (my %reply = $cb->[0]->($pl, $msg)) {
		681	$pl->ext_reply ($msg->{msgid}, %reply);
		682	}
		683	}
		684	} else {
		685	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		686	}
		687
		688	cf::override;
		689	},
		690	);
598		691
599	sub register {	692	sub register {
600	my ($base, $pkg) = @_;	693	my ($base, $pkg) = @_;
601		694
602	#TODO	695	#TODO
…		…
621	. "#line 1 \"$path\"\n{\n"	714	. "#line 1 \"$path\"\n{\n"
622	. (do { local $/; <$fh> })	715	. (do { local $/; <$fh> })
623	. "\n};\n1";	716	. "\n};\n1";
624		717
625	eval $source	718	eval $source
626	or die "$path: $@";	719	or die $@ ? "$path: $@\n"
		720	: "extension disabled.\n";
627		721
628	push @exts, $pkg;	722	push @exts, $pkg;
629	$ext_pkg{$base} = $pkg;	723	$ext_pkg{$base} = $pkg;
630		724
631	# no strict 'refs';	725	# no strict 'refs';
…		…
644	# for my $idx (0 .. $#PLUGIN_EVENT) {	738	# for my $idx (0 .. $#PLUGIN_EVENT) {
645	# delete $hook[$idx]{$pkg};	739	# delete $hook[$idx]{$pkg};
646	# }	740	# }
647		741
648	# remove commands	742	# remove commands
649	for my $name (keys %command) {	743	for my $name (keys %COMMAND) {
650	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	744	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
651		745
652	if (@cb) {	746	if (@cb) {
653	$command{$name} = \@cb;	747	$COMMAND{$name} = \@cb;
654	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
655	} else {	748	} else {
656	delete $command{$name};
657	delete $COMMAND{"$name\000"};	749	delete $COMMAND{$name};
658	}	750	}
659	}	751	}
660		752
661	# remove extcmds	753	# remove extcmds
662	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	754	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
663	delete $extcmd{$name};	755	delete $EXTCMD{$name};
664	}	756	}
665		757
666	if (my $cb = $pkg->can ("unload")) {	758	if (my $cb = $pkg->can ("unload")) {
667	eval {	759	eval {
668	$cb->($pkg);	760	$cb->($pkg);
…		…
672		764
673	Symbol::delete_package $pkg;	765	Symbol::delete_package $pkg;
674	}	766	}
675		767
676	sub load_extensions {	768	sub load_extensions {
677	my $LIBDIR = maps_directory "perl";
678
679	for my $ext (<$LIBDIR/*.ext>) {	769	for my $ext (<$LIBDIR/*.ext>) {
680	next unless -r $ext;	770	next unless -r $ext;
681	eval {	771	eval {
682	load_extension $ext;	772	load_extension $ext;
683	1	773	1
684	} or warn "$ext not loaded: $@";	774	} or warn "$ext not loaded: $@";
685	}	775	}
686	}	776	}
687		777
688	#############################################################################	778	#############################################################################
689	# extcmd framework, basically convert ext <msg>
690	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
691
692	attach_to_players
693	on_extcmd => sub {
694	my ($pl, $buf) = @_;
695
696	my $msg = eval { from_json $buf };
697
698	if (ref $msg) {
699	if (my $cb = $extcmd{$msg->{msgtype}}) {
700	if (my %reply = $cb->[0]->($pl, $msg)) {
701	$pl->ext_reply ($msg->{msgid}, %reply);
702	}
703	}
704	} else {
705	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
706	}
707
708	cf::override;
709	},
710	;
711
712	#############################################################################
713	# load/save/clean perl data associated with a map	779	# load/save/clean perl data associated with a map
714		780
715	*cf::mapsupport::on_clean = sub {	781	*cf::mapsupport::on_clean = sub {
716	my ($map) = @_;	782	my ($map) = @_;
717		783
…		…
719	defined $path or return;	785	defined $path or return;
720		786
721	unlink "$path.pst";	787	unlink "$path.pst";
722	};	788	};
723		789
724	attach_to_maps prio => -10000, package => cf::mapsupport::;	790	cf::map->attach (prio => -10000, package => cf::mapsupport::);
725		791
726	#############################################################################	792	#############################################################################
727	# load/save perl data associated with player->ob objects	793	# load/save perl data associated with player->ob objects
728		794
729	sub all_objects(@) {	795	sub all_objects(@) {
730	@_, map all_objects ($_->inv), @_	796	@_, map all_objects ($_->inv), @_
731	}	797	}
732		798
733	# TODO: compatibility cruft, remove when no longer needed	799	# TODO: compatibility cruft, remove when no longer needed
734	attach_to_players	800	cf::player->attach (
735	on_load => sub {	801	on_load => sub {
736	my ($pl, $path) = @_;	802	my ($pl, $path) = @_;
737		803
738	for my $o (all_objects $pl->ob) {	804	for my $o (all_objects $pl->ob) {
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {	805	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
741		807
742	%$o = %{ Storable::thaw pack "H*", $value };	808	%$o = %{ Storable::thaw pack "H*", $value };
743	}	809	}
744	}	810	}
745	},	811	},
746	;	812	);
747		813
748	#############################################################################	814	#############################################################################
749		815
750	=head2 CORE EXTENSIONS	816	=head2 CORE EXTENSIONS
751		817
752	Functions and methods that extend core crossfire objects.	818	Functions and methods that extend core crossfire objects.
		819
		820	=head3 cf::player
753		821
754	=over 4	822	=over 4
755		823
756	=item cf::player::exists $login	824	=item cf::player::exists $login
757		825
…		…
762	sub cf::player::exists($) {	830	sub cf::player::exists($) {
763	cf::player::find $_[0]	831	cf::player::find $_[0]
764	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	832	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
765	}	833	}
766		834
		835	=item $player->ext_reply ($msgid, $msgtype, %msg)
		836
		837	Sends an ext reply to the player.
		838
		839	=cut
		840
		841	sub cf::player::ext_reply($$$%) {
		842	my ($self, $id, %msg) = @_;
		843
		844	$msg{msgid} = $id;
		845
		846	$self->send ("ext " . to_json \%msg);
		847	}
		848
		849	=back
		850
		851	=head3 cf::object::player
		852
		853	=over 4
		854
767	=item $player->reply ($npc, $msg[, $flags])	855	=item $player_object->reply ($npc, $msg[, $flags])
768		856
769	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	857	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
770	can be C<undef>. Does the right thing when the player is currently in a	858	can be C<undef>. Does the right thing when the player is currently in a
771	dialogue with the given NPC character.	859	dialogue with the given NPC character.
772		860
773	=cut	861	=cut
774		862
775	# rough implementation of a future "reply" method that works	863	# rough implementation of a future "reply" method that works
776	# with dialog boxes.	864	# with dialog boxes.
		865	#TODO: the first argument must go, split into a $npc->reply_to ( method
777	sub cf::object::player::reply($$$;$) {	866	sub cf::object::player::reply($$$;$) {
778	my ($self, $npc, $msg, $flags) = @_;	867	my ($self, $npc, $msg, $flags) = @_;
779		868
780	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	869	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
781		870
…		…
785	$msg = $npc->name . " says: $msg" if $npc;	874	$msg = $npc->name . " says: $msg" if $npc;
786	$self->message ($msg, $flags);	875	$self->message ($msg, $flags);
787	}	876	}
788	}	877	}
789		878
790	=item $player->ext_reply ($msgid, $msgtype, %msg)	879	=item $player_object->may ("access")
791		880
792	Sends an ext reply to the player.	881	Returns wether the given player is authorized to access resource "access"
		882	(e.g. "command_wizcast").
793		883
794	=cut	884	=cut
795		885
796	sub cf::player::ext_reply($$$%) {	886	sub cf::object::player::may {
		887	my ($self, $access) = @_;
		888
		889	$self->flag (cf::FLAG_WIZ) ||
		890	(ref $cf::CFG{"may_$access"}
		891	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		892	: $cf::CFG{"may_$access"})
		893	}
		894
		895	=head3 cf::client
		896
		897	=over 4
		898
		899	=item $client->send_drawinfo ($text, $flags)
		900
		901	Sends a drawinfo packet to the client. Circumvents output buffering so
		902	should not be used under normal circumstances.
		903
		904	=cut
		905
		906	sub cf::client::send_drawinfo {
		907	my ($self, $text, $flags) = @_;
		908
		909	utf8::encode $text;
		910	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		911	}
		912
		913
		914	=item $success = $client->query ($flags, "text", \&cb)
		915
		916	Queues a query to the client, calling the given callback with
		917	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		918	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		919
		920	Queries can fail, so check the return code. Or don't, as queries will become
		921	reliable at some point in the future.
		922
		923	=cut
		924
		925	sub cf::client::query {
		926	my ($self, $flags, $text, $cb) = @_;
		927
		928	return unless $self->state == ST_PLAYING
		929	|| $self->state == ST_SETUP
		930	|| $self->state == ST_CUSTOM;
		931
		932	$self->state (ST_CUSTOM);
		933
		934	utf8::encode $text;
		935	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		936
		937	$self->send_packet ($self->{query_queue}[0][0])
		938	if @{ $self->{query_queue} } == 1;
		939	}
		940
		941	cf::client->attach (
		942	on_reply => sub {
		943	my ($ns, $msg) = @_;
		944
		945	# this weird shuffling is so that direct followup queries
		946	# get handled first
		947	my $queue = delete $ns->{query_queue};
		948
		949	(shift @$queue)->[1]->($msg);
		950
		951	push @{ $ns->{query_queue} }, @$queue;
		952
		953	if (@{ $ns->{query_queue} } == @$queue) {
		954	if (@$queue) {
		955	$ns->send_packet ($ns->{query_queue}[0][0]);
		956	} else {
		957	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		958	}
		959	}
		960	},
		961	);
		962
		963	=item $client->coro (\&cb)
		964
		965	Create a new coroutine, running the specified callback. The coroutine will
		966	be automatically cancelled when the client gets destroyed (e.g. on logout,
		967	or loss of connection).
		968
		969	=cut
		970
		971	sub cf::client::coro {
797	my ($self, $id, %msg) = @_;	972	my ($self, $cb) = @_;
798		973
799	$msg{msgid} = $id;	974	my $coro; $coro = async {
		975	eval {
		976	$cb->();
		977	};
		978	warn $@ if $@;
		979	};
800		980
801	$self->send ("ext " . to_json \%msg);	981	$coro->on_destroy (sub {
		982	delete $self->{_coro}{$coro+0};
		983	});
		984
		985	$self->{_coro}{$coro+0} = $coro;
		986
		987	$coro
802	}	988	}
		989
		990	cf::client->attach (
		991	on_destroy => sub {
		992	my ($ns) = @_;
		993
		994	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		995	},
		996	);
803		997
804	=back	998	=back
805		999
806	=cut
807
808	#############################################################################
809		1000
810	=head2 SAFE SCRIPTING	1001	=head2 SAFE SCRIPTING
811		1002
812	Functions that provide a safe environment to compile and execute	1003	Functions that provide a safe environment to compile and execute
813	snippets of perl code without them endangering the safety of the server	1004	snippets of perl code without them endangering the safety of the server
814	itself. Looping constructs, I/O operators and other built-in functionality	1005	itself. Looping constructs, I/O operators and other built-in functionality
815	is not available in the safe scripting environment, and the number of	1006	is not available in the safe scripting environment, and the number of
816	functions and methods that cna be called is greatly reduced.	1007	functions and methods that can be called is greatly reduced.
817		1008
818	=cut	1009	=cut
819		1010
820	our $safe = new Safe "safe";	1011	our $safe = new Safe "safe";
821	our $safe_hole = new Safe::Hole;	1012	our $safe_hole = new Safe::Hole;
…		…
828		1019
829	=pod	1020	=pod
830		1021
831	The following fucntions and emthods are available within a safe environment:	1022	The following fucntions and emthods are available within a safe environment:
832		1023
833	cf::object contr pay_amount pay_player	1024	cf::object contr pay_amount pay_player map
834	cf::object::player player	1025	cf::object::player player
835	cf::player peaceful	1026	cf::player peaceful
		1027	cf::map trigger
836		1028
837	=cut	1029	=cut
838		1030
839	for (	1031	for (
840	["cf::object" => qw(contr pay_amount pay_player)],	1032	["cf::object" => qw(contr pay_amount pay_player map)],
841	["cf::object::player" => qw(player)],	1033	["cf::object::player" => qw(player)],
842	["cf::player" => qw(peaceful)],	1034	["cf::player" => qw(peaceful)],
		1035	["cf::map" => qw(trigger)],
843	) {	1036	) {
844	no strict 'refs';	1037	no strict 'refs';
845	my ($pkg, @funs) = @$_;	1038	my ($pkg, @funs) = @$_;
846	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1039	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
847	for @funs;	1040	for @funs;
…		…
912	*{"safe::$fun"} = $safe_hole->wrap ($cb);	1105	*{"safe::$fun"} = $safe_hole->wrap ($cb);
913	}	1106	}
914		1107
915	=back	1108	=back
916		1109
		1110	=cut
		1111
917	#############################################################################	1112	#############################################################################
918		1113
919	=head2 EXTENSION DATABASE SUPPORT	1114	=head2 EXTENSION DATABASE SUPPORT
920		1115
921	Crossfire maintains a very simple database for extension use. It can	1116	Crossfire maintains a very simple database for extension use. It can
…		…
955		1150
956	Immediately write the database to disk I<if it is dirty>.	1151	Immediately write the database to disk I<if it is dirty>.
957		1152
958	=cut	1153	=cut
959		1154
		1155	our $DB;
		1156
960	{	1157	{
961	my $db;
962	my $path = cf::localdir . "/database.pst";	1158	my $path = cf::localdir . "/database.pst";
963		1159
964	sub db_load() {	1160	sub db_load() {
965	warn "loading database $path\n";#d# remove later	1161	warn "loading database $path\n";#d# remove later
966	$db = stat $path ? Storable::retrieve $path : { };	1162	$DB = stat $path ? Storable::retrieve $path : { };
967	}	1163	}
968		1164
969	my $pid;	1165	my $pid;
970		1166
971	sub db_save() {	1167	sub db_save() {
972	warn "saving database $path\n";#d# remove later	1168	warn "saving database $path\n";#d# remove later
973	waitpid $pid, 0 if $pid;	1169	waitpid $pid, 0 if $pid;
974	if (0 == ($pid = fork)) {	1170	if (0 == ($pid = fork)) {
975	$db->{_meta}{version} = 1;	1171	$DB->{_meta}{version} = 1;
976	Storable::nstore $db, "$path~";	1172	Storable::nstore $DB, "$path~";
977	rename "$path~", $path;	1173	rename "$path~", $path;
978	cf::_exit 0 if defined $pid;	1174	cf::_exit 0 if defined $pid;
979	}	1175	}
980	}	1176	}
981		1177
…		…
984	sub db_sync() {	1180	sub db_sync() {
985	db_save if $dirty;	1181	db_save if $dirty;
986	undef $dirty;	1182	undef $dirty;
987	}	1183	}
988		1184
989	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1185	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
990	db_sync;	1186	db_sync;
991	});	1187	});
992		1188
993	sub db_dirty() {	1189	sub db_dirty() {
994	$dirty = 1;	1190	$dirty = 1;
995	$idle->start;	1191	$idle->start;
996	}	1192	}
997		1193
998	sub db_get($;$) {	1194	sub db_get($;$) {
999	@_ >= 2	1195	@_ >= 2
1000	? $db->{$_[0]}{$_[1]}	1196	? $DB->{$_[0]}{$_[1]}
1001	: ($db->{$_[0]} ||= { })	1197	: ($DB->{$_[0]} ||= { })
1002	}	1198	}
1003		1199
1004	sub db_put($$;$) {	1200	sub db_put($$;$) {
1005	if (@_ >= 3) {	1201	if (@_ >= 3) {
1006	$db->{$_[0]}{$_[1]} = $_[2];	1202	$DB->{$_[0]}{$_[1]} = $_[2];
1007	} else {	1203	} else {
1008	$db->{$_[0]} = $_[1];	1204	$DB->{$_[0]} = $_[1];
1009	}	1205	}
1010	db_dirty;	1206	db_dirty;
1011	}	1207	}
1012		1208
1013	attach_global	1209	cf::global->attach (
1014	prio => 10000,	1210	prio => 10000,
1015	on_cleanup => sub {	1211	on_cleanup => sub {
1016	db_sync;	1212	db_sync;
1017	},	1213	},
1018	;	1214	);
1019	}	1215	}
1020		1216
1021	#############################################################################	1217	#############################################################################
1022	# the server's main()	1218	# the server's main()
1023		1219
		1220	sub cfg_load {
		1221	open my $fh, "<:utf8", cf::confdir . "/config"
		1222	or return;
		1223
		1224	local $/;
		1225	*CFG = YAML::Syck::Load <$fh>;
		1226	}
		1227
1024	sub main {	1228	sub main {
		1229	cfg_load;
1025	db_load;	1230	db_load;
1026	load_extensions;	1231	load_extensions;
1027	Event::loop;	1232	Event::loop;
1028	}	1233	}
1029		1234
1030	#############################################################################	1235	#############################################################################
1031	# initialisation	1236	# initialisation
1032		1237
1033	sub _perl_reload(&) {	1238	sub _perl_reload() {
1034	my ($msg) = @_;	1239	warn "reloading...";
1035
1036	$msg->("reloading...");
1037		1240
1038	eval {	1241	eval {
		1242	local $FREEZE = 1;
		1243
		1244	cf::emergency_save;
		1245
1039	# cancel all watchers	1246	# cancel all watchers
1040	$_->cancel for Event::all_watchers;	1247	for (Event::all_watchers) {
		1248	$_->cancel if $_->data & WF_AUTOCANCEL;
		1249	}
		1250
		1251	# cancel all extension coros
		1252	$_->cancel for values %EXT_CORO;
		1253	%EXT_CORO = ();
1041		1254
1042	# unload all extensions	1255	# unload all extensions
1043	for (@exts) {	1256	for (@exts) {
1044	$msg->("unloading <$_>");	1257	warn "unloading <$_>";
1045	unload_extension $_;	1258	unload_extension $_;
1046	}	1259	}
1047		1260
1048	# unload all modules loaded from $LIBDIR	1261	# unload all modules loaded from $LIBDIR
1049	while (my ($k, $v) = each %INC) {	1262	while (my ($k, $v) = each %INC) {
1050	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1051		1264
1052	$msg->("removing <$k>");	1265	warn "removing <$k>";
1053	delete $INC{$k};	1266	delete $INC{$k};
1054		1267
1055	$k =~ s/\.pm$//;	1268	$k =~ s/\.pm$//;
1056	$k =~ s/\//::/g;	1269	$k =~ s/\//::/g;
1057		1270
…		…
1062	Symbol::delete_package $k;	1275	Symbol::delete_package $k;
1063	}	1276	}
1064		1277
1065	# sync database to disk	1278	# sync database to disk
1066	cf::db_sync;	1279	cf::db_sync;
		1280	IO::AIO::flush;
1067		1281
1068	# get rid of safe::, as good as possible	1282	# get rid of safe::, as good as possible
1069	Symbol::delete_package "safe::$_"	1283	Symbol::delete_package "safe::$_"
1070	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1284	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1071		1285
1072	# remove register_script_function callbacks	1286	# remove register_script_function callbacks
1073	# TODO	1287	# TODO
1074		1288
1075	# unload cf.pm "a bit"	1289	# unload cf.pm "a bit"
…		…
1078	# don't, removes xs symbols, too,	1292	# don't, removes xs symbols, too,
1079	# and global variables created in xs	1293	# and global variables created in xs
1080	#Symbol::delete_package __PACKAGE__;	1294	#Symbol::delete_package __PACKAGE__;
1081		1295
1082	# reload cf.pm	1296	# reload cf.pm
1083	$msg->("reloading cf.pm");	1297	warn "reloading cf.pm";
1084	require cf;	1298	require cf;
		1299	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1085		1300
1086	# load database again	1301	# load config and database again
		1302	cf::cfg_load;
1087	cf::db_load;	1303	cf::db_load;
1088		1304
1089	# load extensions	1305	# load extensions
1090	$msg->("load extensions");	1306	warn "load extensions";
1091	cf::load_extensions;	1307	cf::load_extensions;
1092		1308
1093	# reattach attachments to objects	1309	# reattach attachments to objects
1094	$msg->("reattach");	1310	warn "reattach";
1095	_global_reattach;	1311	_global_reattach;
1096	};	1312	};
1097	$msg->($@) if $@;	1313	warn $@ if $@;
1098		1314
1099	$msg->("reloaded");	1315	warn "reloaded";
1100	};	1316	};
1101		1317
1102	sub perl_reload() {	1318	sub perl_reload() {
1103	_perl_reload {	1319	_perl_reload;
1104	warn $_[0];
1105	print "$_[0]\n";
1106	};
1107	}	1320	}
1108		1321
		1322	register "<global>", __PACKAGE__;
		1323
1109	register_command "perl-reload", 0, sub {	1324	register_command "perl-reload" => sub {
1110	my ($who, $arg) = @_;	1325	my ($who, $arg) = @_;
1111		1326
1112	if ($who->flag (FLAG_WIZ)) {	1327	if ($who->flag (FLAG_WIZ)) {
		1328	$who->message ("reloading...");
1113	_perl_reload {	1329	_perl_reload;
1114	warn $_[0];
1115	$who->message ($_[0]);
1116	};
1117	}	1330	}
1118	};	1331	};
1119		1332
1120	register "<global>", __PACKAGE__;
1121
1122	unshift @INC, $LIBDIR;	1333	unshift @INC, $LIBDIR;
1123		1334
1124	$TICK_WATCHER = Event->timer (	1335	$TICK_WATCHER = Event->timer (
1125	prio => 1,	1336	prio => 0,
1126	at => $NEXT_TICK || 1,	1337	at => $NEXT_TICK || $TICK,
		1338	data => WF_AUTOCANCEL,
1127	cb => sub {	1339	cb => sub {
		1340	unless ($FREEZE) {
1128	cf::server_tick; # one server iteration	1341	cf::server_tick; # one server iteration
		1342	$RUNTIME += $TICK;
		1343	}
1129		1344
1130	my $NOW = Event::time;
1131	$NEXT_TICK += $TICK;	1345	$NEXT_TICK += $TICK;
1132		1346
1133	# if we are delayed by four ticks, skip them all	1347	# if we are delayed by four ticks or more, skip them all
1134	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1348	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1135		1349
1136	$TICK_WATCHER->at ($NEXT_TICK);	1350	$TICK_WATCHER->at ($NEXT_TICK);
1137	$TICK_WATCHER->start;	1351	$TICK_WATCHER->start;
1138	},	1352	},
1139	);	1353	);
1140		1354
		1355	IO::AIO::max_poll_time $TICK * 0.2;
		1356
		1357	Event->io (fd => IO::AIO::poll_fileno,
		1358	poll => 'r',
		1359	prio => 5,
		1360	data => WF_AUTOCANCEL,
		1361	cb => \&IO::AIO::poll_cb);
		1362
		1363	# we must not ever block the main coroutine
		1364	$Coro::idle = sub {
		1365	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1366	warn "FATAL: Coro::idle was called, major BUG\n";
		1367	(Coro::unblock_sub {
		1368	Event::one_event;
		1369	})->();
		1370	};
		1371
1141	1	1372	1
1142		1373

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines