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 1.79 by root, Tue Nov 7 14:58:35 2006 UTC vs.
Revision 1.105 by root, Sun Dec 31 17:17:23 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;	48	our $UPTIME; $UPTIME ||= time;
		49	our $RUNTIME;
34		50
35	$uptime ||= time;	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;
36		71
37	#############################################################################	72	#############################################################################
38		73
39	=head2 GLOBAL VARIABLES	74	=head2 GLOBAL VARIABLES
40		75
41	=over 4	76	=over 4
		77
		78	=item $cf::UPTIME
		79
		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.
42		86
43	=item $cf::LIBDIR	87	=item $cf::LIBDIR
44		88
45	The perl library directory, where extensions and cf-specific modules can	89	The perl library directory, where extensions and cf-specific modules can
46	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.
47		95
48	=item $cf::TICK	96	=item $cf::TICK
49		97
50	The interval between server ticks, in seconds.	98	The interval between server ticks, in seconds.
51		99
…		…
59	=cut	107	=cut
60		108
61	BEGIN {	109	BEGIN {
62	*CORE::GLOBAL::warn = sub {	110	*CORE::GLOBAL::warn = sub {
63	my $msg = join "", @_;	111	my $msg = join "", @_;
		112	utf8::encode $msg;
		113
64	$msg .= "\n"	114	$msg .= "\n"
65	unless $msg =~ /\n$/;	115	unless $msg =~ /\n$/;
66		116
67	print STDERR "cfperl: $msg";
68	LOG llevError, "cfperl: $msg";	117	LOG llevError, "cfperl: $msg";
69	};	118	};
70	}	119	}
71		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';
72	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
73		127
74	# 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
75	# within the Safe compartment.	129	# within the Safe compartment.
76	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	130	for my $pkg (qw(
		131	cf::global cf::attachable
		132	cf::object cf::object::player
		133	cf::client cf::player
		134	cf::arch cf::living
		135	cf::map cf::party cf::region
		136	)) {
77	no strict 'refs';	137	no strict 'refs';
78	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
79	}	139	}
80		140
81	$Event::DIED = sub {	141	$Event::DIED = sub {
…		…
83	};	143	};
84		144
85	my %ext_pkg;	145	my %ext_pkg;
86	my @exts;	146	my @exts;
87	my @hook;	147	my @hook;
88	my %command;
89	my %extcmd;
90		148
91	=head2 UTILITY FUNCTIONS	149	=head2 UTILITY FUNCTIONS
92		150
93	=over 4	151	=over 4
94		152
…		…
116	sub to_json($) {	174	sub to_json($) {
117	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
118	JSON::Syck::Dump $_[0]	176	JSON::Syck::Dump $_[0]
119	}	177	}
120		178
		179	# main coro must never ever "block" except in Event
		180	# sync_job ensures this by running the job in a coroutine
		181	# and waiting in Event while the server is otherwise frozen
		182	sub sync_job(&) {
		183	my ($job) = @_;
		184
		185	my $busy = 1;
		186	my @res;
		187
		188	local $FREEZE = 1;
		189
		190	my $coro = Coro::async {
		191	@res = eval { $job->() };
		192	warn $@ if $@;
		193	undef $busy;
		194	};
		195
		196	if ($Coro::current == $Coro::main) {
		197	$coro->prio (Coro::PRIO_MAX);
		198	while ($busy) {
		199	Coro::cede_notself;
		200	Event::one_event unless Coro::nready;
		201	}
		202	} else {
		203	$coro->join;
		204	}
		205
		206	wantarray ? @res : $res[0]
		207	}
		208
		209	=item $coro = cf::coro { BLOCK }
		210
		211	Creates and returns a new coro. This coro is automcatially being canceled
		212	when the extension calling this is being unloaded.
		213
		214	=cut
		215
		216	sub coro(&) {
		217	my $cb = shift;
		218
		219	my $coro; $coro = async {
		220	eval {
		221	$cb->();
		222	};
		223	warn $@ if $@;
		224	};
		225
		226	$coro->on_destroy (sub {
		227	delete $EXT_CORO{$coro+0};
		228	});
		229	$EXT_CORO{$coro+0} = $coro;
		230
		231	$coro
		232	}
		233
121	=back	234	=back
122		235
123	=cut	236	=cut
124		237
125	#############################################################################	238	#############################################################################
126		239
127	=head2 EVENTS AND OBJECT ATTACHMENTS	240	=head2 ATTACHABLE OBJECTS
		241
		242	Many objects in crossfire are so-called attachable objects. That means you can
		243	attach callbacks/event handlers (a collection of which is called an "attachment")
		244	to it. All such attachable objects support the following methods.
		245
		246	In the following description, CLASS can be any of C<global>, C<object>
		247	C<player>, C<client> or C<map> (i.e. the attachable objects in
		248	crossfire+).
128		249
129	=over 4	250	=over 4
130		251
131	=item $object->attach ($attachment, key => $value...)
132
133	=item $object->detach ($attachment)
134
135	Attach/detach a pre-registered attachment to an object.
136
137	=item $player->attach ($attachment, key => $value...)
138
139	=item $player->detach ($attachment)
140
141	Attach/detach a pre-registered attachment to a player.
142
143	=item $map->attach ($attachment, key => $value...)	252	=item $attachable->attach ($attachment, key => $value...)
144		253
145	=item $map->detach ($attachment)	254	=item $attachable->detach ($attachment)
146		255
147	Attach/detach a pre-registered attachment to a map.	256	Attach/detach a pre-registered attachment to a specific object and give it
		257	the specified key/value pairs as arguments.
148		258
149	=item $bool = $object->attached ($name)	259	Example, attach a minesweeper attachment to the given object, making it a
		260	10x10 minesweeper game:
150		261
151	=item $bool = $player->attached ($name)	262	$obj->attach (minesweeper => width => 10, height => 10);
152		263
153	=item $bool = $map->attached ($name)	264	=item $bool = $attachable->attached ($name)
154		265
155	Checks wether the named attachment is currently attached to the object.	266	Checks wether the named attachment is currently attached to the object.
156		267
157	=item cf::attach_global ...	268	=item cf::CLASS->attach ...
158		269
159	Attach handlers for global events.	270	=item cf::CLASS->detach ...
160		271
161	This and all following C<attach_*>-functions expect any number of the	272	Define an anonymous attachment and attach it to all objects of the given
162	following handler/hook descriptions:	273	CLASS. See the next function for an explanation of its arguments.
		274
		275	You can attach to global events by using the C<cf::global> class.
		276
		277	Example, log all player logins:
		278
		279	cf::player->attach (
		280	on_login => sub {
		281	my ($pl) = @_;
		282	...
		283	},
		284	);
		285
		286	Example, attach to the jeweler skill:
		287
		288	cf::object->attach (
		289	type => cf::SKILL,
		290	subtype => cf::SK_JEWELER,
		291	on_use_skill => sub {
		292	my ($sk, $ob, $part, $dir, $msg) = @_;
		293	...
		294	},
		295	);
		296
		297	=item cf::CLASS::attachment $name, ...
		298
		299	Register an attachment by C<$name> through which attachable objects of the
		300	given CLASS can refer to this attachment.
		301
		302	Some classes such as crossfire maps and objects can specify attachments
		303	that are attached at load/instantiate time, thus the need for a name.
		304
		305	These calls expect any number of the following handler/hook descriptions:
163		306
164	=over 4	307	=over 4
165		308
166	=item prio => $number	309	=item prio => $number
167		310
…		…
169	by another C<prio> setting). Lower priority handlers get executed	312	by another C<prio> setting). Lower priority handlers get executed
170	earlier. The default priority is C<0>, and many built-in handlers are	313	earlier. The default priority is C<0>, and many built-in handlers are
171	registered at priority C<-1000>, so lower priorities should not be used	314	registered at priority C<-1000>, so lower priorities should not be used
172	unless you know what you are doing.	315	unless you know what you are doing.
173		316
		317	=item type => $type
		318
		319	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		320	given type of objects only (the additional parameter C<subtype> can be
		321	used to further limit to the given subtype).
		322
174	=item on_I<event> => \&cb	323	=item on_I<event> => \&cb
175		324
176	Call the given code reference whenever the named event happens (event is	325	Call the given code reference whenever the named event happens (event is
177	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	326	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
178	handlers are recognised generally depends on the type of object these	327	handlers are recognised generally depends on the type of object these
…		…
187	package and register them. Only handlers for eevents supported by the	336	package and register them. Only handlers for eevents supported by the
188	object/class are recognised.	337	object/class are recognised.
189		338
190	=back	339	=back
191		340
192	=item cf::attach_to_type $object_type, $subtype, ...	341	Example, define an attachment called "sockpuppet" that calls the given
		342	event handler when a monster attacks:
193		343
194	Attach handlers for a specific object type (e.g. TRANSPORT) and	344	cf::object::attachment sockpuppet =>
195	subtype. If C<$subtype> is zero or undef, matches all objects of the given	345	on_skill_attack => sub {
196	type.	346	my ($self, $victim) = @_;
197		347	...
198	=item cf::attach_to_objects ...
199
200	Attach handlers to all objects. Do not use this except for debugging or
201	very rare events, as handlers are (obviously) called for I<all> objects in
202	the game.
203
204	=item cf::attach_to_players ...
205
206	Attach handlers to all players.
207
208	=item cf::attach_to_maps ...
209
210	Attach handlers to all maps.
211
212	=item cf:register_attachment $name, ...
213
214	Register an attachment by name through which objects can refer to this
215	attachment.
216
217	=item cf:register_player_attachment $name, ...
218
219	Register an attachment by name through which players can refer to this
220	attachment.
221
222	=item cf:register_map_attachment $name, ...
223
224	Register an attachment by name through which maps can refer to this
225	attachment.
226
227	=cut
228
229	# the following variables are defined in .xs and must not be re-created
230	our @CB_GLOBAL = (); # registry for all global events
231	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
232	our @CB_PLAYER = ();
233	our @CB_TYPE = (); # registry for type (cf-object class) based events
234	our @CB_MAP = ();
235
236	my %attachment;
237
238	sub _attach_cb($\%$$$) {
239	my ($registry, $undo, $event, $prio, $cb) = @_;
240
241	use sort 'stable';
242
243	$cb = [$prio, $cb];
244
245	@{$registry->[$event]} = sort
246	{ $a->[0] cmp $b->[0] }
247	@{$registry->[$event] || []}, $cb;
248
249	push @{$undo->{cb}}, [$event, $cb];
250	}
251
252	# attach handles attaching event callbacks
253	# the only thing the caller has to do is pass the correct
254	# registry (== where the callback attaches to).
255	sub _attach(\@$@) {
256	my ($registry, $klass, @arg) = @_;
257
258	my $prio = 0;
259
260	my %undo = (
261	registry => $registry,
262	cb => [],
263	);
264
265	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
266
267	while (@arg) {
268	my $type = shift @arg;
269
270	if ($type eq "prio") {
271	$prio = shift @arg;
272
273	} elsif ($type eq "package") {
274	my $pkg = shift @arg;
275
276	while (my ($name, $id) = each %cb_id) {
277	if (my $cb = $pkg->can ($name)) {
278	_attach_cb $registry, %undo, $id, $prio, $cb;
279	}
280	}	348	}
281
282	} elsif (exists $cb_id{$type}) {
283	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
284
285	} elsif (ref $type) {
286	warn "attaching objects not supported, ignoring.\n";
287
288	} else {
289	shift @arg;
290	warn "attach argument '$type' not supported, ignoring.\n";
291	}
292	}
293
294	\%undo
295	}
296
297	sub _attach_attachment {
298	my ($obj, $name, %arg) = @_;
299
300	return if exists $obj->{_attachment}{$name};
301
302	my $res;
303
304	if (my $attach = $attachment{$name}) {
305	my $registry = $obj->registry;
306
307	for (@$attach) {
308	my ($klass, @attach) = @$_;
309	$res = _attach @$registry, $klass, @attach;
310	}
311
312	$obj->{$name} = \%arg;
313	} else {
314	warn "object uses attachment '$name' that is not available, postponing.\n";
315	}
316
317	$obj->{_attachment}{$name} = undef;
318
319	$res->{attachment} = $name;
320	$res
321	}
322
323	*cf::object::attach =
324	*cf::player::attach =
325	*cf::map::attach = sub {
326	my ($obj, $name, %arg) = @_;
327
328	_attach_attachment $obj, $name, %arg;
329	};
330
331	# all those should be optimised
332	*cf::object::detach =
333	*cf::player::detach =
334	*cf::map::detach = sub {
335	my ($obj, $name) = @_;
336
337	delete $obj->{_attachment}{$name};
338	reattach ($obj);
339	};
340
341	*cf::object::attached =
342	*cf::player::attached =
343	*cf::map::attached = sub {
344	my ($obj, $name) = @_;
345
346	exists $obj->{_attachment}{$name}
347	};
348
349	sub attach_global {
350	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
351	}
352
353	sub attach_to_type {
354	my $type = shift;
355	my $subtype = shift;
356
357	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
358	}
359
360	sub attach_to_objects {
361	_attach @CB_OBJECT, KLASS_OBJECT, @_
362	}
363
364	sub attach_to_players {
365	_attach @CB_PLAYER, KLASS_PLAYER, @_
366	}
367
368	sub attach_to_maps {
369	_attach @CB_MAP, KLASS_MAP, @_
370	}
371
372	sub register_attachment {
373	my $name = shift;
374
375	$attachment{$name} = [[KLASS_OBJECT, @_]];
376	}
377
378	sub register_player_attachment {
379	my $name = shift;
380
381	$attachment{$name} = [[KLASS_PLAYER, @_]];
382	}
383
384	sub register_map_attachment {
385	my $name = shift;
386
387	$attachment{$name} = [[KLASS_MAP, @_]];
388	}
389
390	our $override;
391	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
392
393	sub override {
394	$override = 1;
395	@invoke_results = ();
396	}
397
398	sub do_invoke {
399	my $event = shift;
400	my $callbacks = shift;
401
402	@invoke_results = ();
403
404	local $override;
405
406	for (@$callbacks) {
407	eval { &{$_->[1]} };
408
409	if ($@) {
410	warn "$@";
411	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
412	override;
413	}
414
415	return 1 if $override;
416	}
417
418	0	349	}
419	}
420		350
421	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	351	=item $attachable->valid
422
423	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
424
425	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
426
427	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
428
429	Generate a global/object/player/map-specific event with the given arguments.
430
431	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
432	removed in future versions), and there is no public API to access override
433	results (if you must, access C<@cf::invoke_results> directly).
434
435	=back
436
437	=cut
438
439	#############################################################################
440
441	=head2 METHODS VALID FOR ALL CORE OBJECTS
442
443	=over 4
444
445	=item $object->valid, $player->valid, $map->valid
446		352
447	Just because you have a perl object does not mean that the corresponding	353	Just because you have a perl object does not mean that the corresponding
448	C-level object still exists. If you try to access an object that has no	354	C-level object still exists. If you try to access an object that has no
449	valid C counterpart anymore you get an exception at runtime. This method	355	valid C counterpart anymore you get an exception at runtime. This method
450	can be used to test for existence of the C object part without causing an	356	can be used to test for existence of the C object part without causing an
451	exception.	357	exception.
452		358
		359	=cut
		360
		361	# the following variables are defined in .xs and must not be re-created
		362	our @CB_GLOBAL = (); # registry for all global events
		363	our @CB_ATTACHABLE = (); # registry for all attachables
		364	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		365	our @CB_PLAYER = ();
		366	our @CB_CLIENT = ();
		367	our @CB_TYPE = (); # registry for type (cf-object class) based events
		368	our @CB_MAP = ();
		369
		370	my %attachment;
		371
		372	sub _attach_cb($$$$) {
		373	my ($registry, $event, $prio, $cb) = @_;
		374
		375	use sort 'stable';
		376
		377	$cb = [$prio, $cb];
		378
		379	@{$registry->[$event]} = sort
		380	{ $a->[0] cmp $b->[0] }
		381	@{$registry->[$event] || []}, $cb;
		382	}
		383
		384	# hack
		385	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		386
		387	# attach handles attaching event callbacks
		388	# the only thing the caller has to do is pass the correct
		389	# registry (== where the callback attaches to).
		390	sub _attach {
		391	my ($registry, $klass, @arg) = @_;
		392
		393	my $object_type;
		394	my $prio = 0;
		395	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		396
		397	#TODO: get rid of this hack
		398	if ($attachable_klass{$klass}) {
		399	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		400	}
		401
		402	while (@arg) {
		403	my $type = shift @arg;
		404
		405	if ($type eq "prio") {
		406	$prio = shift @arg;
		407
		408	} elsif ($type eq "type") {
		409	$object_type = shift @arg;
		410	$registry = $CB_TYPE[$object_type] ||= [];
		411
		412	} elsif ($type eq "subtype") {
		413	defined $object_type or Carp::croak "subtype specified without type";
		414	my $object_subtype = shift @arg;
		415	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		416
		417	} elsif ($type eq "package") {
		418	my $pkg = shift @arg;
		419
		420	while (my ($name, $id) = each %cb_id) {
		421	if (my $cb = $pkg->can ($name)) {
		422	_attach_cb $registry, $id, $prio, $cb;
		423	}
		424	}
		425
		426	} elsif (exists $cb_id{$type}) {
		427	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		428
		429	} elsif (ref $type) {
		430	warn "attaching objects not supported, ignoring.\n";
		431
		432	} else {
		433	shift @arg;
		434	warn "attach argument '$type' not supported, ignoring.\n";
		435	}
		436	}
		437	}
		438
		439	sub _object_attach {
		440	my ($obj, $name, %arg) = @_;
		441
		442	return if exists $obj->{_attachment}{$name};
		443
		444	if (my $attach = $attachment{$name}) {
		445	my $registry = $obj->registry;
		446
		447	for (@$attach) {
		448	my ($klass, @attach) = @$_;
		449	_attach $registry, $klass, @attach;
		450	}
		451
		452	$obj->{$name} = \%arg;
		453	} else {
		454	warn "object uses attachment '$name' that is not available, postponing.\n";
		455	}
		456
		457	$obj->{_attachment}{$name} = undef;
		458	}
		459
		460	sub cf::attachable::attach {
		461	if (ref $_[0]) {
		462	_object_attach @_;
		463	} else {
		464	_attach shift->_attach_registry, @_;
		465	}
		466	};
		467
		468	# all those should be optimised
		469	sub cf::attachable::detach {
		470	my ($obj, $name) = @_;
		471
		472	if (ref $obj) {
		473	delete $obj->{_attachment}{$name};
		474	reattach ($obj);
		475	} else {
		476	Carp::croak "cannot, currently, detach class attachments";
		477	}
		478	};
		479
		480	sub cf::attachable::attached {
		481	my ($obj, $name) = @_;
		482
		483	exists $obj->{_attachment}{$name}
		484	}
		485
		486	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		487	eval "#line " . __LINE__ . " 'cf.pm'
		488	sub cf::\L$klass\E::_attach_registry {
		489	(\\\@CB_$klass, KLASS_$klass)
		490	}
		491
		492	sub cf::\L$klass\E::attachment {
		493	my \$name = shift;
		494
		495	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		496	}
		497	";
		498	die if $@;
		499	}
		500
		501	our $override;
		502	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		503
		504	sub override {
		505	$override = 1;
		506	@invoke_results = ();
		507	}
		508
		509	sub do_invoke {
		510	my $event = shift;
		511	my $callbacks = shift;
		512
		513	@invoke_results = ();
		514
		515	local $override;
		516
		517	for (@$callbacks) {
		518	eval { &{$_->[1]} };
		519
		520	if ($@) {
		521	warn "$@";
		522	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		523	override;
		524	}
		525
		526	return 1 if $override;
		527	}
		528
		529	0
		530	}
		531
		532	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		533
		534	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		535
		536	Generate an object-specific event with the given arguments.
		537
		538	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		539	removed in future versions), and there is no public API to access override
		540	results (if you must, access C<@cf::invoke_results> directly).
		541
453	=back	542	=back
454		543
455	=cut	544	=cut
456
457	*cf::object::valid =
458	*cf::player::valid =
459	*cf::map::valid = \&cf::_valid;
460		545
461	#############################################################################	546	#############################################################################
462	# object support	547	# object support
463		548
464	sub instantiate {
465	my ($obj, $data) = @_;
466
467	$data = from_json $data;
468
469	for (@$data) {
470	my ($name, $args) = @$_;
471
472	$obj->attach ($name, %{$args || {} });
473	}
474	}
475
476	# basically do the same as instantiate, without calling instantiate
477	sub reattach {	549	sub reattach {
		550	# basically do the same as instantiate, without calling instantiate
478	my ($obj) = @_;	551	my ($obj) = @_;
		552
479	my $registry = $obj->registry;	553	my $registry = $obj->registry;
480		554
481	@$registry = ();	555	@$registry = ();
482		556
483	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	557	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
484		558
485	for my $name (keys %{ $obj->{_attachment} || {} }) {	559	for my $name (keys %{ $obj->{_attachment} || {} }) {
486	if (my $attach = $attachment{$name}) {	560	if (my $attach = $attachment{$name}) {
487	for (@$attach) {	561	for (@$attach) {
488	my ($klass, @attach) = @$_;	562	my ($klass, @attach) = @$_;
489	_attach @$registry, $klass, @attach;	563	_attach $registry, $klass, @attach;
490	}	564	}
491	} else {	565	} else {
492	warn "object uses attachment '$name' that is not available, postponing.\n";	566	warn "object uses attachment '$name' that is not available, postponing.\n";
493	}	567	}
494	}	568	}
495	}	569	}
496		570
497	sub object_freezer_save {	571	cf::attachable->attach (
498	my ($filename, $rdata, $objs) = @_;
499
500	if (length $$rdata) {
501	warn sprintf "saving %s (%d,%d)\n",
502	$filename, length $$rdata, scalar @$objs;
503
504	if (open my $fh, ">:raw", "$filename~") {
505	chmod SAVE_MODE, $fh;
506	syswrite $fh, $$rdata;
507	close $fh;
508
509	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
510	chmod SAVE_MODE, $fh;
511	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
512	close $fh;
513	rename "$filename.pst~", "$filename.pst";
514	} else {
515	unlink "$filename.pst";
516	}
517
518	rename "$filename~", $filename;
519	} else {
520	warn "FATAL: $filename~: $!\n";
521	}
522	} else {
523	unlink $filename;
524	unlink "$filename.pst";
525	}
526	}
527
528	sub object_thawer_load {
529	my ($filename) = @_;
530
531	local $/;
532
533	my $av;
534
535	#TODO: use sysread etc.
536	if (open my $data, "<:raw:perlio", $filename) {
537	$data = <$data>;
538	if (open my $pst, "<:raw:perlio", "$filename.pst") {
539	$av = eval { (Storable::thaw <$pst>)->{objs} };
540	}
541	return ($data, $av);
542	}
543
544	()
545	}
546
547	attach_to_objects
548	prio => -1000000,	572	prio => -1000000,
		573	on_instantiate => sub {
		574	my ($obj, $data) = @_;
		575
		576	$data = from_json $data;
		577
		578	for (@$data) {
		579	my ($name, $args) = @$_;
		580
		581	$obj->attach ($name, %{$args || {} });
		582	}
		583	},
		584	on_reattach => \&reattach,
549	on_clone => sub {	585	on_clone => sub {
550	my ($src, $dst) = @_;	586	my ($src, $dst) = @_;
551		587
552	@{$dst->registry} = @{$src->registry};	588	@{$dst->registry} = @{$src->registry};
553		589
554	%$dst = %$src;	590	%$dst = %$src;
555		591
556	%{$dst->{_attachment}} = %{$src->{_attachment}}	592	%{$dst->{_attachment}} = %{$src->{_attachment}}
557	if exists $src->{_attachment};	593	if exists $src->{_attachment};
558	},	594	},
559	;	595	);
		596
		597	sub object_freezer_save {
		598	my ($filename, $rdata, $objs) = @_;
		599
		600	sync_job {
		601	if (length $$rdata) {
		602	warn sprintf "saving %s (%d,%d)\n",
		603	$filename, length $$rdata, scalar @$objs;
		604
		605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		606	chmod SAVE_MODE, $fh;
		607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		608	aio_fsync $fh;
		609	close $fh;
		610
		611	if (@$objs) {
		612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		613	chmod SAVE_MODE, $fh;
		614	my $data = Storable::nfreeze { version => 1, objs => $objs };
		615	aio_write $fh, 0, (length $data), $data, 0;
		616	aio_fsync $fh;
		617	close $fh;
		618	aio_rename "$filename.pst~", "$filename.pst";
		619	}
		620	} else {
		621	aio_unlink "$filename.pst";
		622	}
		623
		624	aio_rename "$filename~", $filename;
		625	} else {
		626	warn "FATAL: $filename~: $!\n";
		627	}
		628	} else {
		629	aio_unlink $filename;
		630	aio_unlink "$filename.pst";
		631	}
		632	}
		633	}
		634
		635	sub object_freezer_as_string {
		636	my ($rdata, $objs) = @_;
		637
		638	use Data::Dumper;
		639
		640	$$rdata . Dumper $objs
		641	}
		642
		643	sub object_thawer_load {
		644	my ($filename) = @_;
		645
		646	my ($data, $av);
		647
		648	(aio_load $filename, $data) >= 0
		649	or return;
		650
		651	unless (aio_stat "$filename.pst") {
		652	(aio_load "$filename.pst", $av) >= 0
		653	or return;
		654	$av = eval { (Storable::thaw <$av>)->{objs} };
		655	}
		656
		657	return ($data, $av);
		658	}
560		659
561	#############################################################################	660	#############################################################################
562	# old plug-in events	661	# command handling &c
563		662
564	sub inject_event {	663	=item cf::register_command $name => \&callback($ob,$args);
565	my $extension = shift;
566	my $event_code = shift;
567		664
568	my $cb = $hook[$event_code]{$extension}	665	Register a callback for execution when the client sends the user command
569	or return;	666	$name.
570		667
571	&$cb	668	=cut
572	}
573
574	sub inject_global_event {
575	my $event = shift;
576
577	my $cb = $hook[$event]
578	or return;
579
580	List::Util::max map &$_, values %$cb
581	}
582
583	sub inject_command {
584	my ($name, $obj, $params) = @_;
585
586	for my $cmd (@{ $command{$name} }) {
587	$cmd->[1]->($obj, $params);
588	}
589
590	-1
591	}
592		669
593	sub register_command {	670	sub register_command {
594	my ($name, $time, $cb) = @_;	671	my ($name, $cb) = @_;
595		672
596	my $caller = caller;	673	my $caller = caller;
597	#warn "registering command '$name/$time' to '$caller'";	674	#warn "registering command '$name/$time' to '$caller'";
598		675
599	push @{ $command{$name} }, [$time, $cb, $caller];	676	push @{ $COMMAND{$name} }, [$caller, $cb];
600	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
601	}	677	}
		678
		679	=item cf::register_extcmd $name => \&callback($pl,$packet);
		680
		681	Register a callbackf ro execution when the client sends an extcmd packet.
		682
		683	If the callback returns something, it is sent back as if reply was being
		684	called.
		685
		686	=cut
602		687
603	sub register_extcmd {	688	sub register_extcmd {
604	my ($name, $cb) = @_;	689	my ($name, $cb) = @_;
605		690
606	my $caller = caller;	691	my $caller = caller;
607	#warn "registering extcmd '$name' to '$caller'";	692	#warn "registering extcmd '$name' to '$caller'";
608		693
609	$extcmd{$name} = [$cb, $caller];	694	$EXTCMD{$name} = [$cb, $caller];
610	}	695	}
		696
		697	cf::player->attach (
		698	on_command => sub {
		699	my ($pl, $name, $params) = @_;
		700
		701	my $cb = $COMMAND{$name}
		702	or return;
		703
		704	for my $cmd (@$cb) {
		705	$cmd->[1]->($pl->ob, $params);
		706	}
		707
		708	cf::override;
		709	},
		710	on_extcmd => sub {
		711	my ($pl, $buf) = @_;
		712
		713	my $msg = eval { from_json $buf };
		714
		715	if (ref $msg) {
		716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		717	if (my %reply = $cb->[0]->($pl, $msg)) {
		718	$pl->ext_reply ($msg->{msgid}, %reply);
		719	}
		720	}
		721	} else {
		722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		723	}
		724
		725	cf::override;
		726	},
		727	);
611		728
612	sub register {	729	sub register {
613	my ($base, $pkg) = @_;	730	my ($base, $pkg) = @_;
614		731
615	#TODO	732	#TODO
…		…
634	. "#line 1 \"$path\"\n{\n"	751	. "#line 1 \"$path\"\n{\n"
635	. (do { local $/; <$fh> })	752	. (do { local $/; <$fh> })
636	. "\n};\n1";	753	. "\n};\n1";
637		754
638	eval $source	755	eval $source
639	or die "$path: $@";	756	or die $@ ? "$path: $@\n"
		757	: "extension disabled.\n";
640		758
641	push @exts, $pkg;	759	push @exts, $pkg;
642	$ext_pkg{$base} = $pkg;	760	$ext_pkg{$base} = $pkg;
643		761
644	# no strict 'refs';	762	# no strict 'refs';
…		…
657	# for my $idx (0 .. $#PLUGIN_EVENT) {	775	# for my $idx (0 .. $#PLUGIN_EVENT) {
658	# delete $hook[$idx]{$pkg};	776	# delete $hook[$idx]{$pkg};
659	# }	777	# }
660		778
661	# remove commands	779	# remove commands
662	for my $name (keys %command) {	780	for my $name (keys %COMMAND) {
663	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
664		782
665	if (@cb) {	783	if (@cb) {
666	$command{$name} = \@cb;	784	$COMMAND{$name} = \@cb;
667	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
668	} else {	785	} else {
669	delete $command{$name};
670	delete $COMMAND{"$name\000"};	786	delete $COMMAND{$name};
671	}	787	}
672	}	788	}
673		789
674	# remove extcmds	790	# remove extcmds
675	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
676	delete $extcmd{$name};	792	delete $EXTCMD{$name};
677	}	793	}
678		794
679	if (my $cb = $pkg->can ("unload")) {	795	if (my $cb = $pkg->can ("unload")) {
680	eval {	796	eval {
681	$cb->($pkg);	797	$cb->($pkg);
…		…
685		801
686	Symbol::delete_package $pkg;	802	Symbol::delete_package $pkg;
687	}	803	}
688		804
689	sub load_extensions {	805	sub load_extensions {
690	my $LIBDIR = maps_directory "perl";
691
692	for my $ext (<$LIBDIR/*.ext>) {	806	for my $ext (<$LIBDIR/*.ext>) {
693	next unless -r $ext;	807	next unless -r $ext;
694	eval {	808	eval {
695	load_extension $ext;	809	load_extension $ext;
696	1	810	1
697	} or warn "$ext not loaded: $@";	811	} or warn "$ext not loaded: $@";
698	}	812	}
699	}	813	}
700		814
701	#############################################################################	815	#############################################################################
702	# extcmd framework, basically convert ext <msg>
703	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
704
705	attach_to_players
706	on_extcmd => sub {
707	my ($pl, $buf) = @_;
708
709	my $msg = eval { from_json $buf };
710
711	if (ref $msg) {
712	if (my $cb = $extcmd{$msg->{msgtype}}) {
713	if (my %reply = $cb->[0]->($pl, $msg)) {
714	$pl->ext_reply ($msg->{msgid}, %reply);
715	}
716	}
717	} else {
718	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
719	}
720
721	cf::override;
722	},
723	;
724
725	#############################################################################
726	# load/save/clean perl data associated with a map	816	# load/save/clean perl data associated with a map
727		817
728	*cf::mapsupport::on_clean = sub {	818	*cf::mapsupport::on_clean = sub {
729	my ($map) = @_;	819	my ($map) = @_;
730		820
…		…
732	defined $path or return;	822	defined $path or return;
733		823
734	unlink "$path.pst";	824	unlink "$path.pst";
735	};	825	};
736		826
737	attach_to_maps prio => -10000, package => cf::mapsupport::;	827	cf::map->attach (prio => -10000, package => cf::mapsupport::);
738		828
739	#############################################################################	829	#############################################################################
740	# load/save perl data associated with player->ob objects	830	# load/save perl data associated with player->ob objects
741		831
742	sub all_objects(@) {	832	sub all_objects(@) {
743	@_, map all_objects ($_->inv), @_	833	@_, map all_objects ($_->inv), @_
744	}	834	}
745		835
746	# TODO: compatibility cruft, remove when no longer needed	836	# TODO: compatibility cruft, remove when no longer needed
747	attach_to_players	837	cf::player->attach (
748	on_load => sub {	838	on_load => sub {
749	my ($pl, $path) = @_;	839	my ($pl, $path) = @_;
750		840
751	for my $o (all_objects $pl->ob) {	841	for my $o (all_objects $pl->ob) {
752	if (my $value = $o->get_ob_key_value ("_perl_data")) {	842	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
754		844
755	%$o = %{ Storable::thaw pack "H*", $value };	845	%$o = %{ Storable::thaw pack "H*", $value };
756	}	846	}
757	}	847	}
758	},	848	},
759	;	849	);
760		850
761	#############################################################################	851	#############################################################################
762		852
763	=head2 CORE EXTENSIONS	853	=head2 CORE EXTENSIONS
764		854
765	Functions and methods that extend core crossfire objects.	855	Functions and methods that extend core crossfire objects.
		856
		857	=head3 cf::player
766		858
767	=over 4	859	=over 4
768		860
769	=item cf::player::exists $login	861	=item cf::player::exists $login
770		862
…		…
775	sub cf::player::exists($) {	867	sub cf::player::exists($) {
776	cf::player::find $_[0]	868	cf::player::find $_[0]
777	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
778	}	870	}
779		871
		872	=item $player->ext_reply ($msgid, $msgtype, %msg)
		873
		874	Sends an ext reply to the player.
		875
		876	=cut
		877
		878	sub cf::player::ext_reply($$$%) {
		879	my ($self, $id, %msg) = @_;
		880
		881	$msg{msgid} = $id;
		882
		883	$self->send ("ext " . to_json \%msg);
		884	}
		885
		886	=back
		887
		888	=head3 cf::object::player
		889
		890	=over 4
		891
780	=item $player_object->reply ($npc, $msg[, $flags])	892	=item $player_object->reply ($npc, $msg[, $flags])
781		893
782	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	894	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
783	can be C<undef>. Does the right thing when the player is currently in a	895	can be C<undef>. Does the right thing when the player is currently in a
784	dialogue with the given NPC character.	896	dialogue with the given NPC character.
785		897
786	=cut	898	=cut
787		899
788	# rough implementation of a future "reply" method that works	900	# rough implementation of a future "reply" method that works
789	# with dialog boxes.	901	# with dialog boxes.
		902	#TODO: the first argument must go, split into a $npc->reply_to ( method
790	sub cf::object::player::reply($$$;$) {	903	sub cf::object::player::reply($$$;$) {
791	my ($self, $npc, $msg, $flags) = @_;	904	my ($self, $npc, $msg, $flags) = @_;
792		905
793	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	906	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
794		907
…		…
798	$msg = $npc->name . " says: $msg" if $npc;	911	$msg = $npc->name . " says: $msg" if $npc;
799	$self->message ($msg, $flags);	912	$self->message ($msg, $flags);
800	}	913	}
801	}	914	}
802		915
803	=item $player->ext_reply ($msgid, $msgtype, %msg)
804
805	Sends an ext reply to the player.
806
807	=cut
808
809	sub cf::player::ext_reply($$$%) {
810	my ($self, $id, %msg) = @_;
811
812	$msg{msgid} = $id;
813
814	$self->send ("ext " . to_json \%msg);
815	}
816
817	=item $player_object->may ("access")	916	=item $player_object->may ("access")
818		917
819	Returns wether the given player is authorized to access resource "access"	918	Returns wether the given player is authorized to access resource "access"
820	(e.g. "command_wizcast").	919	(e.g. "command_wizcast").
821		920
…		…
828	(ref $cf::CFG{"may_$access"}	927	(ref $cf::CFG{"may_$access"}
829	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
830	: $cf::CFG{"may_$access"})	929	: $cf::CFG{"may_$access"})
831	}	930	}
832		931
833	=cut	932	=head3 cf::client
834		933
835	#############################################################################	934	=over 4
		935
		936	=item $client->send_drawinfo ($text, $flags)
		937
		938	Sends a drawinfo packet to the client. Circumvents output buffering so
		939	should not be used under normal circumstances.
		940
		941	=cut
		942
		943	sub cf::client::send_drawinfo {
		944	my ($self, $text, $flags) = @_;
		945
		946	utf8::encode $text;
		947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		948	}
		949
		950
		951	=item $success = $client->query ($flags, "text", \&cb)
		952
		953	Queues a query to the client, calling the given callback with
		954	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		955	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		956
		957	Queries can fail, so check the return code. Or don't, as queries will become
		958	reliable at some point in the future.
		959
		960	=cut
		961
		962	sub cf::client::query {
		963	my ($self, $flags, $text, $cb) = @_;
		964
		965	return unless $self->state == ST_PLAYING
		966	|| $self->state == ST_SETUP
		967	|| $self->state == ST_CUSTOM;
		968
		969	$self->state (ST_CUSTOM);
		970
		971	utf8::encode $text;
		972	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		973
		974	$self->send_packet ($self->{query_queue}[0][0])
		975	if @{ $self->{query_queue} } == 1;
		976	}
		977
		978	cf::client->attach (
		979	on_reply => sub {
		980	my ($ns, $msg) = @_;
		981
		982	# this weird shuffling is so that direct followup queries
		983	# get handled first
		984	my $queue = delete $ns->{query_queue};
		985
		986	(shift @$queue)->[1]->($msg);
		987
		988	push @{ $ns->{query_queue} }, @$queue;
		989
		990	if (@{ $ns->{query_queue} } == @$queue) {
		991	if (@$queue) {
		992	$ns->send_packet ($ns->{query_queue}[0][0]);
		993	} else {
		994	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		995	}
		996	}
		997	},
		998	);
		999
		1000	=item $client->coro (\&cb)
		1001
		1002	Create a new coroutine, running the specified callback. The coroutine will
		1003	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1004	or loss of connection).
		1005
		1006	=cut
		1007
		1008	sub cf::client::coro {
		1009	my ($self, $cb) = @_;
		1010
		1011	my $coro; $coro = async {
		1012	eval {
		1013	$cb->();
		1014	};
		1015	warn $@ if $@;
		1016	};
		1017
		1018	$coro->on_destroy (sub {
		1019	delete $self->{_coro}{$coro+0};
		1020	});
		1021
		1022	$self->{_coro}{$coro+0} = $coro;
		1023
		1024	$coro
		1025	}
		1026
		1027	cf::client->attach (
		1028	on_destroy => sub {
		1029	my ($ns) = @_;
		1030
		1031	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1032	},
		1033	);
		1034
		1035	=back
		1036
836		1037
837	=head2 SAFE SCRIPTING	1038	=head2 SAFE SCRIPTING
838		1039
839	Functions that provide a safe environment to compile and execute	1040	Functions that provide a safe environment to compile and execute
840	snippets of perl code without them endangering the safety of the server	1041	snippets of perl code without them endangering the safety of the server
…		…
855		1056
856	=pod	1057	=pod
857		1058
858	The following fucntions and emthods are available within a safe environment:	1059	The following fucntions and emthods are available within a safe environment:
859		1060
860	cf::object contr pay_amount pay_player	1061	cf::object contr pay_amount pay_player map
861	cf::object::player player	1062	cf::object::player player
862	cf::player peaceful	1063	cf::player peaceful
		1064	cf::map trigger
863		1065
864	=cut	1066	=cut
865		1067
866	for (	1068	for (
867	["cf::object" => qw(contr pay_amount pay_player)],	1069	["cf::object" => qw(contr pay_amount pay_player map)],
868	["cf::object::player" => qw(player)],	1070	["cf::object::player" => qw(player)],
869	["cf::player" => qw(peaceful)],	1071	["cf::player" => qw(peaceful)],
		1072	["cf::map" => qw(trigger)],
870	) {	1073	) {
871	no strict 'refs';	1074	no strict 'refs';
872	my ($pkg, @funs) = @$_;	1075	my ($pkg, @funs) = @$_;
873	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1076	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
874	for @funs;	1077	for @funs;
…		…
1014	sub db_sync() {	1217	sub db_sync() {
1015	db_save if $dirty;	1218	db_save if $dirty;
1016	undef $dirty;	1219	undef $dirty;
1017	}	1220	}
1018		1221
1019	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1020	db_sync;	1223	db_sync;
1021	});	1224	});
1022		1225
1023	sub db_dirty() {	1226	sub db_dirty() {
1024	$dirty = 1;	1227	$dirty = 1;
…		…
1038	$DB->{$_[0]} = $_[1];	1241	$DB->{$_[0]} = $_[1];
1039	}	1242	}
1040	db_dirty;	1243	db_dirty;
1041	}	1244	}
1042		1245
1043	attach_global	1246	cf::global->attach (
1044	prio => 10000,	1247	prio => 10000,
1045	on_cleanup => sub {	1248	on_cleanup => sub {
1046	db_sync;	1249	db_sync;
1047	},	1250	},
1048	;	1251	);
1049	}	1252	}
1050		1253
1051	#############################################################################	1254	#############################################################################
1052	# the server's main()	1255	# the server's main()
1053		1256
…		…
1067	}	1270	}
1068		1271
1069	#############################################################################	1272	#############################################################################
1070	# initialisation	1273	# initialisation
1071		1274
1072	sub _perl_reload(&) {	1275	sub _perl_reload() {
1073	my ($msg) = @_;	1276	warn "reloading...";
1074
1075	$msg->("reloading...");
1076		1277
1077	eval {	1278	eval {
		1279	local $FREEZE = 1;
		1280
		1281	cf::emergency_save;
		1282
1078	# cancel all watchers	1283	# cancel all watchers
1079	$_->cancel for Event::all_watchers;	1284	for (Event::all_watchers) {
		1285	$_->cancel if $_->data & WF_AUTOCANCEL;
		1286	}
		1287
		1288	# cancel all extension coros
		1289	$_->cancel for values %EXT_CORO;
		1290	%EXT_CORO = ();
1080		1291
1081	# unload all extensions	1292	# unload all extensions
1082	for (@exts) {	1293	for (@exts) {
1083	$msg->("unloading <$_>");	1294	warn "unloading <$_>";
1084	unload_extension $_;	1295	unload_extension $_;
1085	}	1296	}
1086		1297
1087	# unload all modules loaded from $LIBDIR	1298	# unload all modules loaded from $LIBDIR
1088	while (my ($k, $v) = each %INC) {	1299	while (my ($k, $v) = each %INC) {
1089	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1090		1301
1091	$msg->("removing <$k>");	1302	warn "removing <$k>";
1092	delete $INC{$k};	1303	delete $INC{$k};
1093		1304
1094	$k =~ s/\.pm$//;	1305	$k =~ s/\.pm$//;
1095	$k =~ s/\//::/g;	1306	$k =~ s/\//::/g;
1096		1307
…		…
1101	Symbol::delete_package $k;	1312	Symbol::delete_package $k;
1102	}	1313	}
1103		1314
1104	# sync database to disk	1315	# sync database to disk
1105	cf::db_sync;	1316	cf::db_sync;
		1317	IO::AIO::flush;
1106		1318
1107	# get rid of safe::, as good as possible	1319	# get rid of safe::, as good as possible
1108	Symbol::delete_package "safe::$_"	1320	Symbol::delete_package "safe::$_"
1109	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1110		1322
1111	# remove register_script_function callbacks	1323	# remove register_script_function callbacks
1112	# TODO	1324	# TODO
1113		1325
1114	# unload cf.pm "a bit"	1326	# unload cf.pm "a bit"
…		…
1117	# don't, removes xs symbols, too,	1329	# don't, removes xs symbols, too,
1118	# and global variables created in xs	1330	# and global variables created in xs
1119	#Symbol::delete_package __PACKAGE__;	1331	#Symbol::delete_package __PACKAGE__;
1120		1332
1121	# reload cf.pm	1333	# reload cf.pm
1122	$msg->("reloading cf.pm");	1334	warn "reloading cf.pm";
1123	require cf;	1335	require cf;
		1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1124		1337
1125	# load config and database again	1338	# load config and database again
1126	cf::cfg_load;	1339	cf::cfg_load;
1127	cf::db_load;	1340	cf::db_load;
1128		1341
1129	# load extensions	1342	# load extensions
1130	$msg->("load extensions");	1343	warn "load extensions";
1131	cf::load_extensions;	1344	cf::load_extensions;
1132		1345
1133	# reattach attachments to objects	1346	# reattach attachments to objects
1134	$msg->("reattach");	1347	warn "reattach";
1135	_global_reattach;	1348	_global_reattach;
1136	};	1349	};
1137	$msg->($@) if $@;	1350	warn $@ if $@;
1138		1351
1139	$msg->("reloaded");	1352	warn "reloaded";
1140	};	1353	};
1141		1354
1142	sub perl_reload() {	1355	sub perl_reload() {
1143	_perl_reload {	1356	_perl_reload;
1144	warn $_[0];
1145	print "$_[0]\n";
1146	};
1147	}	1357	}
1148		1358
		1359	register "<global>", __PACKAGE__;
		1360
1149	register_command "perl-reload", 0, sub {	1361	register_command "perl-reload" => sub {
1150	my ($who, $arg) = @_;	1362	my ($who, $arg) = @_;
1151		1363
1152	if ($who->flag (FLAG_WIZ)) {	1364	if ($who->flag (FLAG_WIZ)) {
		1365	$who->message ("reloading...");
1153	_perl_reload {	1366	_perl_reload;
1154	warn $_[0];
1155	$who->message ($_[0]);
1156	};
1157	}	1367	}
1158	};	1368	};
1159		1369
1160	register "<global>", __PACKAGE__;
1161
1162	unshift @INC, $LIBDIR;	1370	unshift @INC, $LIBDIR;
1163		1371
1164	$TICK_WATCHER = Event->timer (	1372	$TICK_WATCHER = Event->timer (
		1373	reentrant => 0,
1165	prio => 1,	1374	prio => 0,
1166	async => 1,
1167	at => $NEXT_TICK || 1,	1375	at => $NEXT_TICK || $TICK,
		1376	data => WF_AUTOCANCEL,
1168	cb => sub {	1377	cb => sub {
		1378	unless ($FREEZE) {
1169	cf::server_tick; # one server iteration	1379	cf::server_tick; # one server iteration
		1380	$RUNTIME += $TICK;
		1381	}
1170		1382
1171	my $NOW = Event::time;
1172	$NEXT_TICK += $TICK;	1383	$NEXT_TICK += $TICK;
1173		1384
1174	# if we are delayed by four ticks or more, skip them all	1385	# if we are delayed by four ticks or more, skip them all
1175	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1176		1387
1177	$TICK_WATCHER->at ($NEXT_TICK);	1388	$TICK_WATCHER->at ($NEXT_TICK);
1178	$TICK_WATCHER->start;	1389	$TICK_WATCHER->start;
1179	},	1390	},
1180	);	1391	);
1181		1392
1182	eval { IO::AIO::max_poll_time $TICK * 0.2 }; #d# remove eval after restart	1393	IO::AIO::max_poll_time $TICK * 0.2;
1183		1394
1184	Event->io (fd => IO::AIO::poll_fileno,	1395	Event->io (fd => IO::AIO::poll_fileno,
1185	poll => 'r',	1396	poll => 'r',
1186	prio => 5,	1397	prio => 5,
		1398	data => WF_AUTOCANCEL,
1187	cb => \&IO::AIO::poll_cb);	1399	cb => \&IO::AIO::poll_cb);
1188		1400
		1401	# we must not ever block the main coroutine
		1402	$Coro::idle = sub {
		1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1404	warn "FATAL: Coro::idle was called, major BUG\n";
		1405	(Coro::unblock_sub {
		1406	Event::one_event;
		1407	})->();
		1408	};
		1409
1189	1	1410	1
1190		1411

Diff Legend

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