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 1.84 by root, Mon Dec 11 02:54:57 2006 UTC vs.
Revision 1.106 by root, Sun Dec 31 17:29:22 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	use Coro::AIO;
		19
		20	use Fcntl;
10	use IO::AIO ();	21	use IO::AIO 2.31 ();
11	use YAML::Syck ();	22	use YAML::Syck ();
12	use Time::HiRes;	23	use Time::HiRes;
13	use Event;	24
14	$Event::Eval = 1; # no idea why this is required, but it is	25	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		26
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	28	$YAML::Syck::ImplicitUnicode = 1;
18		29
19	use strict;	30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
20		31
21	_init_vars;	32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		33
23	our %COMMAND = ();	34	our %COMMAND = ();
		35	our %COMMAND_TIME = ();
		36	our %EXTCMD = ();
		37
24	our @EVENT;	38	our @EVENT;
25	our $LIBDIR = maps_directory "perl";	39	our $LIBDIR = datadir . "/ext";
26		40
27	our $TICK = MAX_TIME * 1e-6;	41	our $TICK = MAX_TIME * 1e-6;
28	our $TICK_WATCHER;	42	our $TICK_WATCHER;
29	our $NEXT_TICK;	43	our $NEXT_TICK;
		44	our $NOW;
30		45
31	our %CFG;	46	our %CFG;
32		47
33	our $UPTIME; $UPTIME ||= time;	48	our $UPTIME; $UPTIME ||= time;
		49	our $RUNTIME;
		50
		51	our %MAP; # all maps
		52	our $LINK_MAP; # the special {link} map
		53	our $FREEZE;
		54
		55	binmode STDOUT;
		56	binmode STDERR;
		57
		58	# read virtual server time, if available
		59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		60	open my $fh, "<", cf::localdir . "/runtime"
		61	or die "unable to read runtime file: $!";
		62	$RUNTIME = <$fh> + 0.;
		63	}
		64
		65	mkdir cf::localdir;
		66	mkdir cf::localdir . "/" . cf::playerdir;
		67	mkdir cf::localdir . "/" . cf::tmpdir;
		68	mkdir cf::localdir . "/" . cf::uniquedir;
		69
		70	our %EXT_CORO;
34		71
35	#############################################################################	72	#############################################################################
36		73
37	=head2 GLOBAL VARIABLES	74	=head2 GLOBAL VARIABLES
38		75
39	=over 4	76	=over 4
40		77
41	=item $cf::UPTIME	78	=item $cf::UPTIME
42		79
43	The timestamp of the server start (so not actually an uptime).	80	The timestamp of the server start (so not actually an uptime).
		81
		82	=item $cf::RUNTIME
		83
		84	The time this server has run, starts at 0 and is increased by $cf::TICK on
		85	every server tick.
44		86
45	=item $cf::LIBDIR	87	=item $cf::LIBDIR
46		88
47	The perl library directory, where extensions and cf-specific modules can	89	The perl library directory, where extensions and cf-specific modules can
48	be found. It will be added to C<@INC> automatically.	90	be found. It will be added to C<@INC> automatically.
		91
		92	=item $cf::NOW
		93
		94	The time of the last (current) server tick.
49		95
50	=item $cf::TICK	96	=item $cf::TICK
51		97
52	The interval between server ticks, in seconds.	98	The interval between server ticks, in seconds.
53		99
…		…
61	=cut	107	=cut
62		108
63	BEGIN {	109	BEGIN {
64	*CORE::GLOBAL::warn = sub {	110	*CORE::GLOBAL::warn = sub {
65	my $msg = join "", @_;	111	my $msg = join "", @_;
		112	utf8::encode $msg;
		113
66	$msg .= "\n"	114	$msg .= "\n"
67	unless $msg =~ /\n$/;	115	unless $msg =~ /\n$/;
68		116
69	print STDERR "cfperl: $msg";
70	LOG llevError, "cfperl: $msg";	117	LOG llevError, "cfperl: $msg";
71	};	118	};
72	}	119	}
73		120
		121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
74	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
75		127
76	# we bless all objects into (empty) derived classes to force a method lookup	128	# we bless all objects into (empty) derived classes to force a method lookup
77	# within the Safe compartment.	129	# within the Safe compartment.
78	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	130	for my $pkg (qw(
		131	cf::global cf::attachable
		132	cf::object cf::object::player
		133	cf::client cf::player
		134	cf::arch cf::living
		135	cf::map cf::party cf::region
		136	)) {
79	no strict 'refs';	137	no strict 'refs';
80	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
81	}	139	}
82		140
83	$Event::DIED = sub {	141	$Event::DIED = sub {
…		…
85	};	143	};
86		144
87	my %ext_pkg;	145	my %ext_pkg;
88	my @exts;	146	my @exts;
89	my @hook;	147	my @hook;
90	my %command;
91	my %extcmd;
92		148
93	=head2 UTILITY FUNCTIONS	149	=head2 UTILITY FUNCTIONS
94		150
95	=over 4	151	=over 4
96		152
…		…
118	sub to_json($) {	174	sub to_json($) {
119	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
120	JSON::Syck::Dump $_[0]	176	JSON::Syck::Dump $_[0]
121	}	177	}
122		178
		179	=item cf::sync_job { BLOCK }
		180
		181	The design of crossfire+ requires that the main coro ($Coro::main) is
		182	always able to handle events or runnable, as crossfire+ is only partly
		183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		184
		185	If it must be done, put the blocking parts into C<sync_job>. This will run
		186	the given BLOCK in another coroutine while waiting for the result. The
		187	server will be frozen during this time, so the block should either finish
		188	fast or be very important.
		189
		190	=cut
		191
		192	sub sync_job(&) {
		193	my ($job) = @_;
		194
		195	my $busy = 1;
		196	my @res;
		197
		198	# TODO: use suspend/resume instead
		199	local $FREEZE = 1;
		200
		201	my $coro = Coro::async {
		202	@res = eval { $job->() };
		203	warn $@ if $@;
		204	undef $busy;
		205	};
		206
		207	if ($Coro::current == $Coro::main) {
		208	$coro->prio (Coro::PRIO_MAX);
		209	while ($busy) {
		210	Coro::cede_notself;
		211	Event::one_event unless Coro::nready;
		212	}
		213	} else {
		214	$coro->join;
		215	}
		216
		217	wantarray ? @res : $res[0]
		218	}
		219
		220	=item $coro = cf::coro { BLOCK }
		221
		222	Creates and returns a new coro. This coro is automcatially being canceled
		223	when the extension calling this is being unloaded.
		224
		225	=cut
		226
		227	sub coro(&) {
		228	my $cb = shift;
		229
		230	my $coro; $coro = async {
		231	eval {
		232	$cb->();
		233	};
		234	warn $@ if $@;
		235	};
		236
		237	$coro->on_destroy (sub {
		238	delete $EXT_CORO{$coro+0};
		239	});
		240	$EXT_CORO{$coro+0} = $coro;
		241
		242	$coro
		243	}
		244
123	=back	245	=back
124		246
125	=cut	247	=cut
126		248
127	#############################################################################	249	#############################################################################
128		250
129	=head2 EVENTS AND OBJECT ATTACHMENTS	251	=head2 ATTACHABLE OBJECTS
		252
		253	Many objects in crossfire are so-called attachable objects. That means you can
		254	attach callbacks/event handlers (a collection of which is called an "attachment")
		255	to it. All such attachable objects support the following methods.
		256
		257	In the following description, CLASS can be any of C<global>, C<object>
		258	C<player>, C<client> or C<map> (i.e. the attachable objects in
		259	crossfire+).
130		260
131	=over 4	261	=over 4
132		262
133	=item $object->attach ($attachment, key => $value...)
134
135	=item $object->detach ($attachment)
136
137	Attach/detach a pre-registered attachment to an object.
138
139	=item $player->attach ($attachment, key => $value...)
140
141	=item $player->detach ($attachment)
142
143	Attach/detach a pre-registered attachment to a player.
144
145	=item $map->attach ($attachment, key => $value...)	263	=item $attachable->attach ($attachment, key => $value...)
146		264
147	=item $map->detach ($attachment)	265	=item $attachable->detach ($attachment)
148		266
149	Attach/detach a pre-registered attachment to a map.	267	Attach/detach a pre-registered attachment to a specific object and give it
		268	the specified key/value pairs as arguments.
150		269
151	=item $bool = $object->attached ($name)	270	Example, attach a minesweeper attachment to the given object, making it a
		271	10x10 minesweeper game:
152		272
153	=item $bool = $player->attached ($name)	273	$obj->attach (minesweeper => width => 10, height => 10);
154		274
155	=item $bool = $map->attached ($name)	275	=item $bool = $attachable->attached ($name)
156		276
157	Checks wether the named attachment is currently attached to the object.	277	Checks wether the named attachment is currently attached to the object.
158		278
159	=item cf::attach_global ...	279	=item cf::CLASS->attach ...
160		280
161	Attach handlers for global events.	281	=item cf::CLASS->detach ...
162		282
163	This and all following C<attach_*>-functions expect any number of the	283	Define an anonymous attachment and attach it to all objects of the given
164	following handler/hook descriptions:	284	CLASS. See the next function for an explanation of its arguments.
		285
		286	You can attach to global events by using the C<cf::global> class.
		287
		288	Example, log all player logins:
		289
		290	cf::player->attach (
		291	on_login => sub {
		292	my ($pl) = @_;
		293	...
		294	},
		295	);
		296
		297	Example, attach to the jeweler skill:
		298
		299	cf::object->attach (
		300	type => cf::SKILL,
		301	subtype => cf::SK_JEWELER,
		302	on_use_skill => sub {
		303	my ($sk, $ob, $part, $dir, $msg) = @_;
		304	...
		305	},
		306	);
		307
		308	=item cf::CLASS::attachment $name, ...
		309
		310	Register an attachment by C<$name> through which attachable objects of the
		311	given CLASS can refer to this attachment.
		312
		313	Some classes such as crossfire maps and objects can specify attachments
		314	that are attached at load/instantiate time, thus the need for a name.
		315
		316	These calls expect any number of the following handler/hook descriptions:
165		317
166	=over 4	318	=over 4
167		319
168	=item prio => $number	320	=item prio => $number
169		321
…		…
171	by another C<prio> setting). Lower priority handlers get executed	323	by another C<prio> setting). Lower priority handlers get executed
172	earlier. The default priority is C<0>, and many built-in handlers are	324	earlier. The default priority is C<0>, and many built-in handlers are
173	registered at priority C<-1000>, so lower priorities should not be used	325	registered at priority C<-1000>, so lower priorities should not be used
174	unless you know what you are doing.	326	unless you know what you are doing.
175		327
		328	=item type => $type
		329
		330	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		331	given type of objects only (the additional parameter C<subtype> can be
		332	used to further limit to the given subtype).
		333
176	=item on_I<event> => \&cb	334	=item on_I<event> => \&cb
177		335
178	Call the given code reference whenever the named event happens (event is	336	Call the given code reference whenever the named event happens (event is
179	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	337	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
180	handlers are recognised generally depends on the type of object these	338	handlers are recognised generally depends on the type of object these
…		…
189	package and register them. Only handlers for eevents supported by the	347	package and register them. Only handlers for eevents supported by the
190	object/class are recognised.	348	object/class are recognised.
191		349
192	=back	350	=back
193		351
194	=item cf::attach_to_type $object_type, $subtype, ...	352	Example, define an attachment called "sockpuppet" that calls the given
		353	event handler when a monster attacks:
195		354
196	Attach handlers for a specific object type (e.g. TRANSPORT) and	355	cf::object::attachment sockpuppet =>
197	subtype. If C<$subtype> is zero or undef, matches all objects of the given	356	on_skill_attack => sub {
198	type.	357	my ($self, $victim) = @_;
199		358	...
200	=item cf::attach_to_objects ...
201
202	Attach handlers to all objects. Do not use this except for debugging or
203	very rare events, as handlers are (obviously) called for I<all> objects in
204	the game.
205
206	=item cf::attach_to_players ...
207
208	Attach handlers to all players.
209
210	=item cf::attach_to_maps ...
211
212	Attach handlers to all maps.
213
214	=item cf:register_attachment $name, ...
215
216	Register an attachment by name through which objects can refer to this
217	attachment.
218
219	=item cf:register_player_attachment $name, ...
220
221	Register an attachment by name through which players can refer to this
222	attachment.
223
224	=item cf:register_map_attachment $name, ...
225
226	Register an attachment by name through which maps can refer to this
227	attachment.
228
229	=cut
230
231	# the following variables are defined in .xs and must not be re-created
232	our @CB_GLOBAL = (); # registry for all global events
233	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
234	our @CB_PLAYER = ();
235	our @CB_TYPE = (); # registry for type (cf-object class) based events
236	our @CB_MAP = ();
237
238	my %attachment;
239
240	sub _attach_cb($\%$$$) {
241	my ($registry, $undo, $event, $prio, $cb) = @_;
242
243	use sort 'stable';
244
245	$cb = [$prio, $cb];
246
247	@{$registry->[$event]} = sort
248	{ $a->[0] cmp $b->[0] }
249	@{$registry->[$event] || []}, $cb;
250
251	push @{$undo->{cb}}, [$event, $cb];
252	}
253
254	# attach handles attaching event callbacks
255	# the only thing the caller has to do is pass the correct
256	# registry (== where the callback attaches to).
257	sub _attach(\@$@) {
258	my ($registry, $klass, @arg) = @_;
259
260	my $prio = 0;
261
262	my %undo = (
263	registry => $registry,
264	cb => [],
265	);
266
267	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
268
269	while (@arg) {
270	my $type = shift @arg;
271
272	if ($type eq "prio") {
273	$prio = shift @arg;
274
275	} elsif ($type eq "package") {
276	my $pkg = shift @arg;
277
278	while (my ($name, $id) = each %cb_id) {
279	if (my $cb = $pkg->can ($name)) {
280	_attach_cb $registry, %undo, $id, $prio, $cb;
281	}
282	}	359	}
283
284	} elsif (exists $cb_id{$type}) {
285	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
286
287	} elsif (ref $type) {
288	warn "attaching objects not supported, ignoring.\n";
289
290	} else {
291	shift @arg;
292	warn "attach argument '$type' not supported, ignoring.\n";
293	}
294	}
295
296	\%undo
297	}
298
299	sub _attach_attachment {
300	my ($obj, $name, %arg) = @_;
301
302	return if exists $obj->{_attachment}{$name};
303
304	my $res;
305
306	if (my $attach = $attachment{$name}) {
307	my $registry = $obj->registry;
308
309	for (@$attach) {
310	my ($klass, @attach) = @$_;
311	$res = _attach @$registry, $klass, @attach;
312	}
313
314	$obj->{$name} = \%arg;
315	} else {
316	warn "object uses attachment '$name' that is not available, postponing.\n";
317	}
318
319	$obj->{_attachment}{$name} = undef;
320
321	$res->{attachment} = $name;
322	$res
323	}
324
325	*cf::object::attach =
326	*cf::player::attach =
327	*cf::map::attach = sub {
328	my ($obj, $name, %arg) = @_;
329
330	_attach_attachment $obj, $name, %arg;
331	};
332
333	# all those should be optimised
334	*cf::object::detach =
335	*cf::player::detach =
336	*cf::map::detach = sub {
337	my ($obj, $name) = @_;
338
339	delete $obj->{_attachment}{$name};
340	reattach ($obj);
341	};
342
343	*cf::object::attached =
344	*cf::player::attached =
345	*cf::map::attached = sub {
346	my ($obj, $name) = @_;
347
348	exists $obj->{_attachment}{$name}
349	};
350
351	sub attach_global {
352	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
353	}
354
355	sub attach_to_type {
356	my $type = shift;
357	my $subtype = shift;
358
359	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
360	}
361
362	sub attach_to_objects {
363	_attach @CB_OBJECT, KLASS_OBJECT, @_
364	}
365
366	sub attach_to_players {
367	_attach @CB_PLAYER, KLASS_PLAYER, @_
368	}
369
370	sub attach_to_maps {
371	_attach @CB_MAP, KLASS_MAP, @_
372	}
373
374	sub register_attachment {
375	my $name = shift;
376
377	$attachment{$name} = [[KLASS_OBJECT, @_]];
378	}
379
380	sub register_player_attachment {
381	my $name = shift;
382
383	$attachment{$name} = [[KLASS_PLAYER, @_]];
384	}
385
386	sub register_map_attachment {
387	my $name = shift;
388
389	$attachment{$name} = [[KLASS_MAP, @_]];
390	}
391
392	our $override;
393	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
394
395	sub override {
396	$override = 1;
397	@invoke_results = ();
398	}
399
400	sub do_invoke {
401	my $event = shift;
402	my $callbacks = shift;
403
404	@invoke_results = ();
405
406	local $override;
407
408	for (@$callbacks) {
409	eval { &{$_->[1]} };
410
411	if ($@) {
412	warn "$@";
413	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
414	override;
415	}
416
417	return 1 if $override;
418	}
419
420	0	360	}
421	}
422		361
423	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	362	=item $attachable->valid
424
425	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
426
427	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
428
429	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
430
431	Generate a global/object/player/map-specific event with the given arguments.
432
433	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
434	removed in future versions), and there is no public API to access override
435	results (if you must, access C<@cf::invoke_results> directly).
436
437	=back
438
439	=cut
440
441	#############################################################################
442
443	=head2 METHODS VALID FOR ALL CORE OBJECTS
444
445	=over 4
446
447	=item $object->valid, $player->valid, $map->valid
448		363
449	Just because you have a perl object does not mean that the corresponding	364	Just because you have a perl object does not mean that the corresponding
450	C-level object still exists. If you try to access an object that has no	365	C-level object still exists. If you try to access an object that has no
451	valid C counterpart anymore you get an exception at runtime. This method	366	valid C counterpart anymore you get an exception at runtime. This method
452	can be used to test for existence of the C object part without causing an	367	can be used to test for existence of the C object part without causing an
453	exception.	368	exception.
454		369
		370	=cut
		371
		372	# the following variables are defined in .xs and must not be re-created
		373	our @CB_GLOBAL = (); # registry for all global events
		374	our @CB_ATTACHABLE = (); # registry for all attachables
		375	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		376	our @CB_PLAYER = ();
		377	our @CB_CLIENT = ();
		378	our @CB_TYPE = (); # registry for type (cf-object class) based events
		379	our @CB_MAP = ();
		380
		381	my %attachment;
		382
		383	sub _attach_cb($$$$) {
		384	my ($registry, $event, $prio, $cb) = @_;
		385
		386	use sort 'stable';
		387
		388	$cb = [$prio, $cb];
		389
		390	@{$registry->[$event]} = sort
		391	{ $a->[0] cmp $b->[0] }
		392	@{$registry->[$event] || []}, $cb;
		393	}
		394
		395	# hack
		396	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		397
		398	# attach handles attaching event callbacks
		399	# the only thing the caller has to do is pass the correct
		400	# registry (== where the callback attaches to).
		401	sub _attach {
		402	my ($registry, $klass, @arg) = @_;
		403
		404	my $object_type;
		405	my $prio = 0;
		406	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		407
		408	#TODO: get rid of this hack
		409	if ($attachable_klass{$klass}) {
		410	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		411	}
		412
		413	while (@arg) {
		414	my $type = shift @arg;
		415
		416	if ($type eq "prio") {
		417	$prio = shift @arg;
		418
		419	} elsif ($type eq "type") {
		420	$object_type = shift @arg;
		421	$registry = $CB_TYPE[$object_type] ||= [];
		422
		423	} elsif ($type eq "subtype") {
		424	defined $object_type or Carp::croak "subtype specified without type";
		425	my $object_subtype = shift @arg;
		426	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		427
		428	} elsif ($type eq "package") {
		429	my $pkg = shift @arg;
		430
		431	while (my ($name, $id) = each %cb_id) {
		432	if (my $cb = $pkg->can ($name)) {
		433	_attach_cb $registry, $id, $prio, $cb;
		434	}
		435	}
		436
		437	} elsif (exists $cb_id{$type}) {
		438	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		439
		440	} elsif (ref $type) {
		441	warn "attaching objects not supported, ignoring.\n";
		442
		443	} else {
		444	shift @arg;
		445	warn "attach argument '$type' not supported, ignoring.\n";
		446	}
		447	}
		448	}
		449
		450	sub _object_attach {
		451	my ($obj, $name, %arg) = @_;
		452
		453	return if exists $obj->{_attachment}{$name};
		454
		455	if (my $attach = $attachment{$name}) {
		456	my $registry = $obj->registry;
		457
		458	for (@$attach) {
		459	my ($klass, @attach) = @$_;
		460	_attach $registry, $klass, @attach;
		461	}
		462
		463	$obj->{$name} = \%arg;
		464	} else {
		465	warn "object uses attachment '$name' that is not available, postponing.\n";
		466	}
		467
		468	$obj->{_attachment}{$name} = undef;
		469	}
		470
		471	sub cf::attachable::attach {
		472	if (ref $_[0]) {
		473	_object_attach @_;
		474	} else {
		475	_attach shift->_attach_registry, @_;
		476	}
		477	};
		478
		479	# all those should be optimised
		480	sub cf::attachable::detach {
		481	my ($obj, $name) = @_;
		482
		483	if (ref $obj) {
		484	delete $obj->{_attachment}{$name};
		485	reattach ($obj);
		486	} else {
		487	Carp::croak "cannot, currently, detach class attachments";
		488	}
		489	};
		490
		491	sub cf::attachable::attached {
		492	my ($obj, $name) = @_;
		493
		494	exists $obj->{_attachment}{$name}
		495	}
		496
		497	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		498	eval "#line " . __LINE__ . " 'cf.pm'
		499	sub cf::\L$klass\E::_attach_registry {
		500	(\\\@CB_$klass, KLASS_$klass)
		501	}
		502
		503	sub cf::\L$klass\E::attachment {
		504	my \$name = shift;
		505
		506	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		507	}
		508	";
		509	die if $@;
		510	}
		511
		512	our $override;
		513	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		514
		515	sub override {
		516	$override = 1;
		517	@invoke_results = ();
		518	}
		519
		520	sub do_invoke {
		521	my $event = shift;
		522	my $callbacks = shift;
		523
		524	@invoke_results = ();
		525
		526	local $override;
		527
		528	for (@$callbacks) {
		529	eval { &{$_->[1]} };
		530
		531	if ($@) {
		532	warn "$@";
		533	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		534	override;
		535	}
		536
		537	return 1 if $override;
		538	}
		539
		540	0
		541	}
		542
		543	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		544
		545	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		546
		547	Generate an object-specific event with the given arguments.
		548
		549	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		550	removed in future versions), and there is no public API to access override
		551	results (if you must, access C<@cf::invoke_results> directly).
		552
455	=back	553	=back
456		554
457	=cut	555	=cut
458
459	*cf::object::valid =
460	*cf::player::valid =
461	*cf::map::valid = \&cf::_valid;
462		556
463	#############################################################################	557	#############################################################################
464	# object support	558	# object support
465		559
466	sub instantiate {
467	my ($obj, $data) = @_;
468
469	$data = from_json $data;
470
471	for (@$data) {
472	my ($name, $args) = @$_;
473
474	$obj->attach ($name, %{$args || {} });
475	}
476	}
477
478	# basically do the same as instantiate, without calling instantiate
479	sub reattach {	560	sub reattach {
		561	# basically do the same as instantiate, without calling instantiate
480	my ($obj) = @_;	562	my ($obj) = @_;
		563
481	my $registry = $obj->registry;	564	my $registry = $obj->registry;
482		565
483	@$registry = ();	566	@$registry = ();
484		567
485	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	568	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
486		569
487	for my $name (keys %{ $obj->{_attachment} || {} }) {	570	for my $name (keys %{ $obj->{_attachment} || {} }) {
488	if (my $attach = $attachment{$name}) {	571	if (my $attach = $attachment{$name}) {
489	for (@$attach) {	572	for (@$attach) {
490	my ($klass, @attach) = @$_;	573	my ($klass, @attach) = @$_;
491	_attach @$registry, $klass, @attach;	574	_attach $registry, $klass, @attach;
492	}	575	}
493	} else {	576	} else {
494	warn "object uses attachment '$name' that is not available, postponing.\n";	577	warn "object uses attachment '$name' that is not available, postponing.\n";
495	}	578	}
496	}	579	}
497	}	580	}
498		581
499	sub object_freezer_save {	582	cf::attachable->attach (
500	my ($filename, $rdata, $objs) = @_;
501
502	if (length $$rdata) {
503	warn sprintf "saving %s (%d,%d)\n",
504	$filename, length $$rdata, scalar @$objs;
505
506	if (open my $fh, ">:raw", "$filename~") {
507	chmod SAVE_MODE, $fh;
508	syswrite $fh, $$rdata;
509	close $fh;
510
511	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
514	close $fh;
515	rename "$filename.pst~", "$filename.pst";
516	} else {
517	unlink "$filename.pst";
518	}
519
520	rename "$filename~", $filename;
521	} else {
522	warn "FATAL: $filename~: $!\n";
523	}
524	} else {
525	unlink $filename;
526	unlink "$filename.pst";
527	}
528	}
529
530	sub object_freezer_as_string {
531	my ($rdata, $objs) = @_;
532
533	use Data::Dumper;
534
535	$$rdata . Dumper $objs
536	}
537
538	sub object_thawer_load {
539	my ($filename) = @_;
540
541	local $/;
542
543	my $av;
544
545	#TODO: use sysread etc.
546	if (open my $data, "<:raw:perlio", $filename) {
547	$data = <$data>;
548	if (open my $pst, "<:raw:perlio", "$filename.pst") {
549	$av = eval { (Storable::thaw <$pst>)->{objs} };
550	}
551	return ($data, $av);
552	}
553
554	()
555	}
556
557	attach_to_objects
558	prio => -1000000,	583	prio => -1000000,
		584	on_instantiate => sub {
		585	my ($obj, $data) = @_;
		586
		587	$data = from_json $data;
		588
		589	for (@$data) {
		590	my ($name, $args) = @$_;
		591
		592	$obj->attach ($name, %{$args || {} });
		593	}
		594	},
		595	on_reattach => \&reattach,
559	on_clone => sub {	596	on_clone => sub {
560	my ($src, $dst) = @_;	597	my ($src, $dst) = @_;
561		598
562	@{$dst->registry} = @{$src->registry};	599	@{$dst->registry} = @{$src->registry};
563		600
564	%$dst = %$src;	601	%$dst = %$src;
565		602
566	%{$dst->{_attachment}} = %{$src->{_attachment}}	603	%{$dst->{_attachment}} = %{$src->{_attachment}}
567	if exists $src->{_attachment};	604	if exists $src->{_attachment};
568	},	605	},
569	;	606	);
		607
		608	sub object_freezer_save {
		609	my ($filename, $rdata, $objs) = @_;
		610
		611	sync_job {
		612	if (length $$rdata) {
		613	warn sprintf "saving %s (%d,%d)\n",
		614	$filename, length $$rdata, scalar @$objs;
		615
		616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		617	chmod SAVE_MODE, $fh;
		618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		619	aio_fsync $fh;
		620	close $fh;
		621
		622	if (@$objs) {
		623	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		624	chmod SAVE_MODE, $fh;
		625	my $data = Storable::nfreeze { version => 1, objs => $objs };
		626	aio_write $fh, 0, (length $data), $data, 0;
		627	aio_fsync $fh;
		628	close $fh;
		629	aio_rename "$filename.pst~", "$filename.pst";
		630	}
		631	} else {
		632	aio_unlink "$filename.pst";
		633	}
		634
		635	aio_rename "$filename~", $filename;
		636	} else {
		637	warn "FATAL: $filename~: $!\n";
		638	}
		639	} else {
		640	aio_unlink $filename;
		641	aio_unlink "$filename.pst";
		642	}
		643	}
		644	}
		645
		646	sub object_freezer_as_string {
		647	my ($rdata, $objs) = @_;
		648
		649	use Data::Dumper;
		650
		651	$$rdata . Dumper $objs
		652	}
		653
		654	sub object_thawer_load {
		655	my ($filename) = @_;
		656
		657	my ($data, $av);
		658
		659	(aio_load $filename, $data) >= 0
		660	or return;
		661
		662	unless (aio_stat "$filename.pst") {
		663	(aio_load "$filename.pst", $av) >= 0
		664	or return;
		665	$av = eval { (Storable::thaw <$av>)->{objs} };
		666	}
		667
		668	return ($data, $av);
		669	}
570		670
571	#############################################################################	671	#############################################################################
572	# old plug-in events	672	# command handling &c
573		673
574	sub inject_event {	674	=item cf::register_command $name => \&callback($ob,$args);
575	my $extension = shift;
576	my $event_code = shift;
577		675
578	my $cb = $hook[$event_code]{$extension}	676	Register a callback for execution when the client sends the user command
579	or return;	677	$name.
580		678
581	&$cb	679	=cut
582	}
583
584	sub inject_global_event {
585	my $event = shift;
586
587	my $cb = $hook[$event]
588	or return;
589
590	List::Util::max map &$_, values %$cb
591	}
592
593	sub inject_command {
594	my ($name, $obj, $params) = @_;
595
596	for my $cmd (@{ $command{$name} }) {
597	$cmd->[1]->($obj, $params);
598	}
599
600	-1
601	}
602		680
603	sub register_command {	681	sub register_command {
604	my ($name, $time, $cb) = @_;	682	my ($name, $cb) = @_;
605		683
606	my $caller = caller;	684	my $caller = caller;
607	#warn "registering command '$name/$time' to '$caller'";	685	#warn "registering command '$name/$time' to '$caller'";
608		686
609	push @{ $command{$name} }, [$time, $cb, $caller];	687	push @{ $COMMAND{$name} }, [$caller, $cb];
610	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
611	}	688	}
		689
		690	=item cf::register_extcmd $name => \&callback($pl,$packet);
		691
		692	Register a callbackf ro execution when the client sends an extcmd packet.
		693
		694	If the callback returns something, it is sent back as if reply was being
		695	called.
		696
		697	=cut
612		698
613	sub register_extcmd {	699	sub register_extcmd {
614	my ($name, $cb) = @_;	700	my ($name, $cb) = @_;
615		701
616	my $caller = caller;	702	my $caller = caller;
617	#warn "registering extcmd '$name' to '$caller'";	703	#warn "registering extcmd '$name' to '$caller'";
618		704
619	$extcmd{$name} = [$cb, $caller];	705	$EXTCMD{$name} = [$cb, $caller];
620	}	706	}
		707
		708	cf::player->attach (
		709	on_command => sub {
		710	my ($pl, $name, $params) = @_;
		711
		712	my $cb = $COMMAND{$name}
		713	or return;
		714
		715	for my $cmd (@$cb) {
		716	$cmd->[1]->($pl->ob, $params);
		717	}
		718
		719	cf::override;
		720	},
		721	on_extcmd => sub {
		722	my ($pl, $buf) = @_;
		723
		724	my $msg = eval { from_json $buf };
		725
		726	if (ref $msg) {
		727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		728	if (my %reply = $cb->[0]->($pl, $msg)) {
		729	$pl->ext_reply ($msg->{msgid}, %reply);
		730	}
		731	}
		732	} else {
		733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		734	}
		735
		736	cf::override;
		737	},
		738	);
621		739
622	sub register {	740	sub register {
623	my ($base, $pkg) = @_;	741	my ($base, $pkg) = @_;
624		742
625	#TODO	743	#TODO
…		…
668	# for my $idx (0 .. $#PLUGIN_EVENT) {	786	# for my $idx (0 .. $#PLUGIN_EVENT) {
669	# delete $hook[$idx]{$pkg};	787	# delete $hook[$idx]{$pkg};
670	# }	788	# }
671		789
672	# remove commands	790	# remove commands
673	for my $name (keys %command) {	791	for my $name (keys %COMMAND) {
674	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
675		793
676	if (@cb) {	794	if (@cb) {
677	$command{$name} = \@cb;	795	$COMMAND{$name} = \@cb;
678	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
679	} else {	796	} else {
680	delete $command{$name};
681	delete $COMMAND{"$name\000"};	797	delete $COMMAND{$name};
682	}	798	}
683	}	799	}
684		800
685	# remove extcmds	801	# remove extcmds
686	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
687	delete $extcmd{$name};	803	delete $EXTCMD{$name};
688	}	804	}
689		805
690	if (my $cb = $pkg->can ("unload")) {	806	if (my $cb = $pkg->can ("unload")) {
691	eval {	807	eval {
692	$cb->($pkg);	808	$cb->($pkg);
…		…
696		812
697	Symbol::delete_package $pkg;	813	Symbol::delete_package $pkg;
698	}	814	}
699		815
700	sub load_extensions {	816	sub load_extensions {
701	my $LIBDIR = maps_directory "perl";
702
703	for my $ext (<$LIBDIR/*.ext>) {	817	for my $ext (<$LIBDIR/*.ext>) {
704	next unless -r $ext;	818	next unless -r $ext;
705	eval {	819	eval {
706	load_extension $ext;	820	load_extension $ext;
707	1	821	1
708	} or warn "$ext not loaded: $@";	822	} or warn "$ext not loaded: $@";
709	}	823	}
710	}	824	}
711		825
712	#############################################################################	826	#############################################################################
713	# extcmd framework, basically convert ext <msg>
714	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
715
716	attach_to_players
717	on_extcmd => sub {
718	my ($pl, $buf) = @_;
719
720	my $msg = eval { from_json $buf };
721
722	if (ref $msg) {
723	if (my $cb = $extcmd{$msg->{msgtype}}) {
724	if (my %reply = $cb->[0]->($pl, $msg)) {
725	$pl->ext_reply ($msg->{msgid}, %reply);
726	}
727	}
728	} else {
729	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
730	}
731
732	cf::override;
733	},
734	;
735
736	#############################################################################
737	# load/save/clean perl data associated with a map	827	# load/save/clean perl data associated with a map
738		828
739	*cf::mapsupport::on_clean = sub {	829	*cf::mapsupport::on_clean = sub {
740	my ($map) = @_;	830	my ($map) = @_;
741		831
…		…
743	defined $path or return;	833	defined $path or return;
744		834
745	unlink "$path.pst";	835	unlink "$path.pst";
746	};	836	};
747		837
748	attach_to_maps prio => -10000, package => cf::mapsupport::;	838	cf::map->attach (prio => -10000, package => cf::mapsupport::);
749		839
750	#############################################################################	840	#############################################################################
751	# load/save perl data associated with player->ob objects	841	# load/save perl data associated with player->ob objects
752		842
753	sub all_objects(@) {	843	sub all_objects(@) {
754	@_, map all_objects ($_->inv), @_	844	@_, map all_objects ($_->inv), @_
755	}	845	}
756		846
757	# TODO: compatibility cruft, remove when no longer needed	847	# TODO: compatibility cruft, remove when no longer needed
758	attach_to_players	848	cf::player->attach (
759	on_load => sub {	849	on_load => sub {
760	my ($pl, $path) = @_;	850	my ($pl, $path) = @_;
761		851
762	for my $o (all_objects $pl->ob) {	852	for my $o (all_objects $pl->ob) {
763	if (my $value = $o->get_ob_key_value ("_perl_data")) {	853	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
765		855
766	%$o = %{ Storable::thaw pack "H*", $value };	856	%$o = %{ Storable::thaw pack "H*", $value };
767	}	857	}
768	}	858	}
769	},	859	},
770	;	860	);
771		861
772	#############################################################################	862	#############################################################################
773		863
774	=head2 CORE EXTENSIONS	864	=head2 CORE EXTENSIONS
775		865
776	Functions and methods that extend core crossfire objects.	866	Functions and methods that extend core crossfire objects.
		867
		868	=head3 cf::player
777		869
778	=over 4	870	=over 4
779		871
780	=item cf::player::exists $login	872	=item cf::player::exists $login
781		873
…		…
786	sub cf::player::exists($) {	878	sub cf::player::exists($) {
787	cf::player::find $_[0]	879	cf::player::find $_[0]
788	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
789	}	881	}
790		882
		883	=item $player->ext_reply ($msgid, $msgtype, %msg)
		884
		885	Sends an ext reply to the player.
		886
		887	=cut
		888
		889	sub cf::player::ext_reply($$$%) {
		890	my ($self, $id, %msg) = @_;
		891
		892	$msg{msgid} = $id;
		893
		894	$self->send ("ext " . to_json \%msg);
		895	}
		896
		897	=back
		898
		899	=head3 cf::object::player
		900
		901	=over 4
		902
791	=item $player_object->reply ($npc, $msg[, $flags])	903	=item $player_object->reply ($npc, $msg[, $flags])
792		904
793	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	905	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
794	can be C<undef>. Does the right thing when the player is currently in a	906	can be C<undef>. Does the right thing when the player is currently in a
795	dialogue with the given NPC character.	907	dialogue with the given NPC character.
796		908
797	=cut	909	=cut
798		910
799	# rough implementation of a future "reply" method that works	911	# rough implementation of a future "reply" method that works
800	# with dialog boxes.	912	# with dialog boxes.
		913	#TODO: the first argument must go, split into a $npc->reply_to ( method
801	sub cf::object::player::reply($$$;$) {	914	sub cf::object::player::reply($$$;$) {
802	my ($self, $npc, $msg, $flags) = @_;	915	my ($self, $npc, $msg, $flags) = @_;
803		916
804	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
805		918
…		…
809	$msg = $npc->name . " says: $msg" if $npc;	922	$msg = $npc->name . " says: $msg" if $npc;
810	$self->message ($msg, $flags);	923	$self->message ($msg, $flags);
811	}	924	}
812	}	925	}
813		926
814	=item $player->ext_reply ($msgid, $msgtype, %msg)
815
816	Sends an ext reply to the player.
817
818	=cut
819
820	sub cf::player::ext_reply($$$%) {
821	my ($self, $id, %msg) = @_;
822
823	$msg{msgid} = $id;
824
825	$self->send ("ext " . to_json \%msg);
826	}
827
828	=item $player_object->may ("access")	927	=item $player_object->may ("access")
829		928
830	Returns wether the given player is authorized to access resource "access"	929	Returns wether the given player is authorized to access resource "access"
831	(e.g. "command_wizcast").	930	(e.g. "command_wizcast").
832		931
…		…
839	(ref $cf::CFG{"may_$access"}	938	(ref $cf::CFG{"may_$access"}
840	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
841	: $cf::CFG{"may_$access"})	940	: $cf::CFG{"may_$access"})
842	}	941	}
843		942
844	=cut	943	=head3 cf::client
845		944
846	#############################################################################	945	=over 4
		946
		947	=item $client->send_drawinfo ($text, $flags)
		948
		949	Sends a drawinfo packet to the client. Circumvents output buffering so
		950	should not be used under normal circumstances.
		951
		952	=cut
		953
		954	sub cf::client::send_drawinfo {
		955	my ($self, $text, $flags) = @_;
		956
		957	utf8::encode $text;
		958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		959	}
		960
		961
		962	=item $success = $client->query ($flags, "text", \&cb)
		963
		964	Queues a query to the client, calling the given callback with
		965	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		966	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		967
		968	Queries can fail, so check the return code. Or don't, as queries will become
		969	reliable at some point in the future.
		970
		971	=cut
		972
		973	sub cf::client::query {
		974	my ($self, $flags, $text, $cb) = @_;
		975
		976	return unless $self->state == ST_PLAYING
		977	|| $self->state == ST_SETUP
		978	|| $self->state == ST_CUSTOM;
		979
		980	$self->state (ST_CUSTOM);
		981
		982	utf8::encode $text;
		983	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		984
		985	$self->send_packet ($self->{query_queue}[0][0])
		986	if @{ $self->{query_queue} } == 1;
		987	}
		988
		989	cf::client->attach (
		990	on_reply => sub {
		991	my ($ns, $msg) = @_;
		992
		993	# this weird shuffling is so that direct followup queries
		994	# get handled first
		995	my $queue = delete $ns->{query_queue};
		996
		997	(shift @$queue)->[1]->($msg);
		998
		999	push @{ $ns->{query_queue} }, @$queue;
		1000
		1001	if (@{ $ns->{query_queue} } == @$queue) {
		1002	if (@$queue) {
		1003	$ns->send_packet ($ns->{query_queue}[0][0]);
		1004	} else {
		1005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1006	}
		1007	}
		1008	},
		1009	);
		1010
		1011	=item $client->coro (\&cb)
		1012
		1013	Create a new coroutine, running the specified callback. The coroutine will
		1014	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1015	or loss of connection).
		1016
		1017	=cut
		1018
		1019	sub cf::client::coro {
		1020	my ($self, $cb) = @_;
		1021
		1022	my $coro; $coro = async {
		1023	eval {
		1024	$cb->();
		1025	};
		1026	warn $@ if $@;
		1027	};
		1028
		1029	$coro->on_destroy (sub {
		1030	delete $self->{_coro}{$coro+0};
		1031	});
		1032
		1033	$self->{_coro}{$coro+0} = $coro;
		1034
		1035	$coro
		1036	}
		1037
		1038	cf::client->attach (
		1039	on_destroy => sub {
		1040	my ($ns) = @_;
		1041
		1042	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1043	},
		1044	);
		1045
		1046	=back
		1047
847		1048
848	=head2 SAFE SCRIPTING	1049	=head2 SAFE SCRIPTING
849		1050
850	Functions that provide a safe environment to compile and execute	1051	Functions that provide a safe environment to compile and execute
851	snippets of perl code without them endangering the safety of the server	1052	snippets of perl code without them endangering the safety of the server
…		…
866		1067
867	=pod	1068	=pod
868		1069
869	The following fucntions and emthods are available within a safe environment:	1070	The following fucntions and emthods are available within a safe environment:
870		1071
871	cf::object contr pay_amount pay_player	1072	cf::object contr pay_amount pay_player map
872	cf::object::player player	1073	cf::object::player player
873	cf::player peaceful	1074	cf::player peaceful
		1075	cf::map trigger
874		1076
875	=cut	1077	=cut
876		1078
877	for (	1079	for (
878	["cf::object" => qw(contr pay_amount pay_player)],	1080	["cf::object" => qw(contr pay_amount pay_player map)],
879	["cf::object::player" => qw(player)],	1081	["cf::object::player" => qw(player)],
880	["cf::player" => qw(peaceful)],	1082	["cf::player" => qw(peaceful)],
		1083	["cf::map" => qw(trigger)],
881	) {	1084	) {
882	no strict 'refs';	1085	no strict 'refs';
883	my ($pkg, @funs) = @$_;	1086	my ($pkg, @funs) = @$_;
884	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1087	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
885	for @funs;	1088	for @funs;
…		…
1025	sub db_sync() {	1228	sub db_sync() {
1026	db_save if $dirty;	1229	db_save if $dirty;
1027	undef $dirty;	1230	undef $dirty;
1028	}	1231	}
1029		1232
1030	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1233	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1031	db_sync;	1234	db_sync;
1032	});	1235	});
1033		1236
1034	sub db_dirty() {	1237	sub db_dirty() {
1035	$dirty = 1;	1238	$dirty = 1;
…		…
1049	$DB->{$_[0]} = $_[1];	1252	$DB->{$_[0]} = $_[1];
1050	}	1253	}
1051	db_dirty;	1254	db_dirty;
1052	}	1255	}
1053		1256
1054	attach_global	1257	cf::global->attach (
1055	prio => 10000,	1258	prio => 10000,
1056	on_cleanup => sub {	1259	on_cleanup => sub {
1057	db_sync;	1260	db_sync;
1058	},	1261	},
1059	;	1262	);
1060	}	1263	}
1061		1264
1062	#############################################################################	1265	#############################################################################
1063	# the server's main()	1266	# the server's main()
1064		1267
…		…
1078	}	1281	}
1079		1282
1080	#############################################################################	1283	#############################################################################
1081	# initialisation	1284	# initialisation
1082		1285
1083	sub _perl_reload(&) {	1286	sub _perl_reload() {
1084	my ($msg) = @_;	1287	# can/must only be called in main
		1288	if ($Coro::current != $Coro::main) {
		1289	warn "can only reload from main coroutine\n";
		1290	return;
		1291	}
1085		1292
1086	$msg->("reloading...");	1293	warn "reloading...";
		1294
		1295	local $FREEZE = 1;
		1296	cf::emergency_save;
1087		1297
1088	eval {	1298	eval {
		1299	# if anything goes wrong in here, we should simply crash as we already saved
		1300
1089	# cancel all watchers	1301	# cancel all watchers
1090	$_->cancel for Event::all_watchers;	1302	for (Event::all_watchers) {
		1303	$_->cancel if $_->data & WF_AUTOCANCEL;
		1304	}
		1305
		1306	# cancel all extension coros
		1307	$_->cancel for values %EXT_CORO;
		1308	%EXT_CORO = ();
1091		1309
1092	# unload all extensions	1310	# unload all extensions
1093	for (@exts) {	1311	for (@exts) {
1094	$msg->("unloading <$_>");	1312	warn "unloading <$_>";
1095	unload_extension $_;	1313	unload_extension $_;
1096	}	1314	}
1097		1315
1098	# unload all modules loaded from $LIBDIR	1316	# unload all modules loaded from $LIBDIR
1099	while (my ($k, $v) = each %INC) {	1317	while (my ($k, $v) = each %INC) {
1100	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1101		1319
1102	$msg->("removing <$k>");	1320	warn "removing <$k>";
1103	delete $INC{$k};	1321	delete $INC{$k};
1104		1322
1105	$k =~ s/\.pm$//;	1323	$k =~ s/\.pm$//;
1106	$k =~ s/\//::/g;	1324	$k =~ s/\//::/g;
1107		1325
…		…
1112	Symbol::delete_package $k;	1330	Symbol::delete_package $k;
1113	}	1331	}
1114		1332
1115	# sync database to disk	1333	# sync database to disk
1116	cf::db_sync;	1334	cf::db_sync;
		1335	IO::AIO::flush;
1117		1336
1118	# get rid of safe::, as good as possible	1337	# get rid of safe::, as good as possible
1119	Symbol::delete_package "safe::$_"	1338	Symbol::delete_package "safe::$_"
1120	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1121		1340
1122	# remove register_script_function callbacks	1341	# remove register_script_function callbacks
1123	# TODO	1342	# TODO
1124		1343
1125	# unload cf.pm "a bit"	1344	# unload cf.pm "a bit"
…		…
1128	# don't, removes xs symbols, too,	1347	# don't, removes xs symbols, too,
1129	# and global variables created in xs	1348	# and global variables created in xs
1130	#Symbol::delete_package __PACKAGE__;	1349	#Symbol::delete_package __PACKAGE__;
1131		1350
1132	# reload cf.pm	1351	# reload cf.pm
1133	$msg->("reloading cf.pm");	1352	warn "reloading cf.pm";
1134	require cf;	1353	require cf;
		1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1135		1355
1136	# load config and database again	1356	# load config and database again
1137	cf::cfg_load;	1357	cf::cfg_load;
1138	cf::db_load;	1358	cf::db_load;
1139		1359
1140	# load extensions	1360	# load extensions
1141	$msg->("load extensions");	1361	warn "load extensions";
1142	cf::load_extensions;	1362	cf::load_extensions;
1143		1363
1144	# reattach attachments to objects	1364	# reattach attachments to objects
1145	$msg->("reattach");	1365	warn "reattach";
1146	_global_reattach;	1366	_global_reattach;
1147	};	1367	};
1148	$msg->($@) if $@;
1149		1368
1150	$msg->("reloaded");	1369	if ($@) {
		1370	warn $@;
		1371	warn "error while reloading, exiting.";
		1372	exit 1;
		1373	}
		1374
		1375	warn "reloaded successfully";
1151	};	1376	};
1152		1377
1153	sub perl_reload() {	1378	sub perl_reload() {
1154	_perl_reload {	1379	_perl_reload;
1155	warn $_[0];
1156	print "$_[0]\n";
1157	};
1158	}	1380	}
1159		1381
		1382	register "<global>", __PACKAGE__;
		1383
1160	register_command "perl-reload", 0, sub {	1384	register_command "perl-reload" => sub {
1161	my ($who, $arg) = @_;	1385	my ($who, $arg) = @_;
1162		1386
1163	if ($who->flag (FLAG_WIZ)) {	1387	if ($who->flag (FLAG_WIZ)) {
		1388	$who->message ("reloading...");
1164	_perl_reload {	1389	_perl_reload;
1165	warn $_[0];
1166	$who->message ($_[0]);
1167	};
1168	}	1390	}
1169	};	1391	};
1170		1392
1171	register "<global>", __PACKAGE__;
1172
1173	unshift @INC, $LIBDIR;	1393	unshift @INC, $LIBDIR;
1174		1394
1175	$TICK_WATCHER = Event->timer (	1395	$TICK_WATCHER = Event->timer (
		1396	reentrant => 0,
1176	prio => 1,	1397	prio => 0,
1177	async => 1,
1178	at => $NEXT_TICK || 1,	1398	at => $NEXT_TICK || $TICK,
		1399	data => WF_AUTOCANCEL,
1179	cb => sub {	1400	cb => sub {
		1401	unless ($FREEZE) {
1180	cf::server_tick; # one server iteration	1402	cf::server_tick; # one server iteration
		1403	$RUNTIME += $TICK;
		1404	}
1181		1405
1182	my $NOW = Event::time;
1183	$NEXT_TICK += $TICK;	1406	$NEXT_TICK += $TICK;
1184		1407
1185	# if we are delayed by four ticks or more, skip them all	1408	# if we are delayed by four ticks or more, skip them all
1186	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1409	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1187		1410
1188	$TICK_WATCHER->at ($NEXT_TICK);	1411	$TICK_WATCHER->at ($NEXT_TICK);
1189	$TICK_WATCHER->start;	1412	$TICK_WATCHER->start;
1190	},	1413	},
1191	);	1414	);
…		…
1193	IO::AIO::max_poll_time $TICK * 0.2;	1416	IO::AIO::max_poll_time $TICK * 0.2;
1194		1417
1195	Event->io (fd => IO::AIO::poll_fileno,	1418	Event->io (fd => IO::AIO::poll_fileno,
1196	poll => 'r',	1419	poll => 'r',
1197	prio => 5,	1420	prio => 5,
		1421	data => WF_AUTOCANCEL,
1198	cb => \&IO::AIO::poll_cb);	1422	cb => \&IO::AIO::poll_cb);
1199		1423
		1424	# we must not ever block the main coroutine
		1425	$Coro::idle = sub {
		1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1427	warn "FATAL: Coro::idle was called, major BUG\n";
		1428	(Coro::unblock_sub {
		1429	Event::one_event;
		1430	})->();
		1431	};
		1432
1200	1	1433	1
1201		1434

Diff Legend

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