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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.81 by root, Tue Nov 7 17:38:22 2006 UTC vs.
Revision 1.136 by root, Fri Jan 5 01:06:28 2007 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 Digest::MD5;
		21	use Fcntl;
10	use IO::AIO ();	22	use IO::AIO 2.31 ();
11	use YAML::Syck ();	23	use YAML::Syck ();
12	use Time::HiRes;	24	use Time::HiRes;
13	use Event;	25
14	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		27
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
18		30
19	use strict;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
20		32
21	_init_vars;	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		34
23	our %COMMAND = ();	35	our %COMMAND = ();
		36	our %COMMAND_TIME = ();
		37	our %EXTCMD = ();
		38
24	our @EVENT;	39	our @EVENT;
25	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
26		41
27	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
28	our $TICK_WATCHER;	43	our $TICK_WATCHER;
29	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
30		46
31	our %CFG;	47	our %CFG;
32		48
33	our $uptime;	49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
34		51
35	$uptime ||= time;	52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $RANDOM_MAPS = cf::localdir . "/random";
		55	our %EXT_CORO;
		56
		57	binmode STDOUT;
		58	binmode STDERR;
		59
		60	# read virtual server time, if available
		61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		62	open my $fh, "<", cf::localdir . "/runtime"
		63	or die "unable to read runtime file: $!";
		64	$RUNTIME = <$fh> + 0.;
		65	}
		66
		67	mkdir cf::localdir;
		68	mkdir cf::localdir . "/" . cf::playerdir;
		69	mkdir cf::localdir . "/" . cf::tmpdir;
		70	mkdir cf::localdir . "/" . cf::uniquedir;
		71	mkdir $RANDOM_MAPS;
		72
		73	# a special map that is always available
		74	our $LINK_MAP;
		75	our $EMERGENCY_POSITION;
36		76
37	#############################################################################	77	#############################################################################
38		78
39	=head2 GLOBAL VARIABLES	79	=head2 GLOBAL VARIABLES
40		80
41	=over 4	81	=over 4
		82
		83	=item $cf::UPTIME
		84
		85	The timestamp of the server start (so not actually an uptime).
		86
		87	=item $cf::RUNTIME
		88
		89	The time this server has run, starts at 0 and is increased by $cf::TICK on
		90	every server tick.
42		91
43	=item $cf::LIBDIR	92	=item $cf::LIBDIR
44		93
45	The perl library directory, where extensions and cf-specific modules can	94	The perl library directory, where extensions and cf-specific modules can
46	be found. It will be added to C<@INC> automatically.	95	be found. It will be added to C<@INC> automatically.
		96
		97	=item $cf::NOW
		98
		99	The time of the last (current) server tick.
47		100
48	=item $cf::TICK	101	=item $cf::TICK
49		102
50	The interval between server ticks, in seconds.	103	The interval between server ticks, in seconds.
51		104
…		…
59	=cut	112	=cut
60		113
61	BEGIN {	114	BEGIN {
62	*CORE::GLOBAL::warn = sub {	115	*CORE::GLOBAL::warn = sub {
63	my $msg = join "", @_;	116	my $msg = join "", @_;
		117	utf8::encode $msg;
		118
64	$msg .= "\n"	119	$msg .= "\n"
65	unless $msg =~ /\n$/;	120	unless $msg =~ /\n$/;
66		121
67	print STDERR "cfperl: $msg";
68	LOG llevError, "cfperl: $msg";	122	LOG llevError, "cfperl: $msg";
69	};	123	};
70	}	124	}
71		125
		126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
72	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
73		132
74	# we bless all objects into (empty) derived classes to force a method lookup	133	# we bless all objects into (empty) derived classes to force a method lookup
75	# within the Safe compartment.	134	# 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)) {	135	for my $pkg (qw(
		136	cf::global cf::attachable
		137	cf::object cf::object::player
		138	cf::client cf::player
		139	cf::arch cf::living
		140	cf::map cf::party cf::region
		141	)) {
77	no strict 'refs';	142	no strict 'refs';
78	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
79	}	144	}
80		145
81	$Event::DIED = sub {	146	$Event::DIED = sub {
…		…
83	};	148	};
84		149
85	my %ext_pkg;	150	my %ext_pkg;
86	my @exts;	151	my @exts;
87	my @hook;	152	my @hook;
88	my %command;
89	my %extcmd;
90		153
91	=head2 UTILITY FUNCTIONS	154	=head2 UTILITY FUNCTIONS
92		155
93	=over 4	156	=over 4
94		157
…		…
116	sub to_json($) {	179	sub to_json($) {
117	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
118	JSON::Syck::Dump $_[0]	181	JSON::Syck::Dump $_[0]
119	}	182	}
120		183
		184	=item cf::lock_wait $string
		185
		186	Wait until the given lock is available. See cf::lock_acquire.
		187
		188	=item my $lock = cf::lock_acquire $string
		189
		190	Wait until the given lock is available and then acquires it and returns
		191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		192	for example when the coroutine gets canceled), the lock is automatically
		193	returned.
		194
		195	Lock names should begin with a unique identifier (for example, cf::map::find
		196	uses map_find and cf::map::load uses map_load).
		197
		198	=cut
		199
		200	our %LOCK;
		201
		202	sub lock_wait($) {
		203	my ($key) = @_;
		204
		205	# wait for lock, if any
		206	while ($LOCK{$key}) {
		207	push @{ $LOCK{$key} }, $Coro::current;
		208	Coro::schedule;
		209	}
		210	}
		211
		212	sub lock_acquire($) {
		213	my ($key) = @_;
		214
		215	# wait, to be sure we are not locked
		216	lock_wait $key;
		217
		218	$LOCK{$key} = [];
		219
		220	Coro::guard {
		221	# wake up all waiters, to be on the safe side
		222	$_->ready for @{ delete $LOCK{$key} };
		223	}
		224	}
		225
		226	=item cf::async { BLOCK }
		227
		228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
		229	error instead of exiting the server in case of a problem.
		230
		231	=cut
		232
		233	sub async(&) {
		234	my ($cb) = @_;
		235
		236	Coro::async {
		237	eval { $cb->() };
		238	warn $@ if $@;
		239	}
		240	}
		241
		242	sub freeze_mainloop {
		243	return unless $TICK_WATCHER->is_active;
		244
		245	my $guard = Coro::guard { $TICK_WATCHER->start };
		246	$TICK_WATCHER->stop;
		247	$guard
		248	}
		249
		250	=item cf::sync_job { BLOCK }
		251
		252	The design of crossfire+ requires that the main coro ($Coro::main) is
		253	always able to handle events or runnable, as crossfire+ is only partly
		254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		255
		256	If it must be done, put the blocking parts into C<sync_job>. This will run
		257	the given BLOCK in another coroutine while waiting for the result. The
		258	server will be frozen during this time, so the block should either finish
		259	fast or be very important.
		260
		261	=cut
		262
		263	sub sync_job(&) {
		264	my ($job) = @_;
		265
		266	if ($Coro::current == $Coro::main) {
		267	# this is the main coro, too bad, we have to block
		268	# till the operation succeeds, freezing the server :/
		269
		270	# TODO: use suspend/resume instead
		271	# (but this is cancel-safe)
		272	my $freeze_guard = freeze_mainloop;
		273
		274	my $busy = 1;
		275	my @res;
		276
		277	(Coro::async {
		278	@res = eval { $job->() };
		279	warn $@ if $@;
		280	undef $busy;
		281	})->prio (Coro::PRIO_MAX);
		282
		283	while ($busy) {
		284	Coro::cede_notself;
		285	Event::one_event unless Coro::nready;
		286	}
		287
		288	wantarray ? @res : $res[0]
		289	} else {
		290	# we are in another coroutine, how wonderful, everything just works
		291
		292	$job->()
		293	}
		294	}
		295
		296	=item $coro = cf::coro { BLOCK }
		297
		298	Creates and returns a new coro. This coro is automcatially being canceled
		299	when the extension calling this is being unloaded.
		300
		301	=cut
		302
		303	sub coro(&) {
		304	my $cb = shift;
		305
		306	my $coro = &cf::async ($cb);
		307
		308	$coro->on_destroy (sub {
		309	delete $EXT_CORO{$coro+0};
		310	});
		311	$EXT_CORO{$coro+0} = $coro;
		312
		313	$coro
		314	}
		315
		316	sub write_runtime {
		317	my $runtime = cf::localdir . "/runtime";
		318
		319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		320	or return;
		321
		322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		324	and return;
		325
		326	aio_fsync $fh
		327	and return;
		328
		329	close $fh
		330	or return;
		331
		332	aio_rename "$runtime~", $runtime
		333	and return;
		334
		335	1
		336	}
		337
121	=back	338	=back
122		339
123	=cut	340	=cut
124		341
125	#############################################################################	342	#############################################################################
126		343
127	=head2 EVENTS AND OBJECT ATTACHMENTS	344	package cf::path;
		345
		346	sub new {
		347	my ($class, $path, $base) = @_;
		348
		349	$path = $path->as_string if ref $path;
		350
		351	my $self = bless { }, $class;
		352
		353	# {... are special paths that are not touched
		354	# ?xxx/... are special absolute paths
		355	# ?random/... random maps
		356	# /! non-realised random map exit
		357	# /... normal maps
		358	# ~/... per-player maps without a specific player (DO NOT USE)
		359	# ~user/... per-player map of a specific user
		360
		361	if ($path =~ /^{/) {
		362	# fine as it is
		363	} elsif ($path =~ s{^\?random/}{}) {
		364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		365	$self->{random} = cf::from_json $data;
		366	} else {
		367	if ($path =~ s{^~([^/]+)?}{}) {
		368	$self->{user_rel} = 1;
		369
		370	if (defined $1) {
		371	$self->{user} = $1;
		372	} elsif ($base =~ m{^~([^/]+)/}) {
		373	$self->{user} = $1;
		374	} else {
		375	warn "cannot resolve user-relative path without user <$path,$base>\n";
		376	}
		377	} elsif ($path =~ /^\//) {
		378	# already absolute
		379	} else {
		380	$base =~ s{[^/]+/?$}{};
		381	return $class->new ("$base/$path");
		382	}
		383
		384	for ($path) {
		385	redo if s{/\.?/}{/};
		386	redo if s{/[^/]+/\.\./}{/};
		387	}
		388	}
		389
		390	$self->{path} = $path;
		391
		392	$self
		393	}
		394
		395	# the name / primary key / in-game path
		396	sub as_string {
		397	my ($self) = @_;
		398
		399	$self->{user_rel} ? "~$self->{user}$self->{path}"
		400	: $self->{random} ? "?random/$self->{path}"
		401	: $self->{path}
		402	}
		403
		404	# the displayed name, this is a one way mapping
		405	sub visible_name {
		406	my ($self) = @_;
		407
		408	# if (my $rmp = $self->{random}) {
		409	# # todo: be more intelligent about this
		410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		411	# } else {
		412	$self->as_string
		413	# }
		414	}
		415
		416	# escape the /'s in the path
		417	sub _escaped_path {
		418	# ∕ is U+2215
		419	(my $path = $_[0]{path}) =~ s/\//∕/g;
		420	$path
		421	}
		422
		423	# the original (read-only) location
		424	sub load_path {
		425	my ($self) = @_;
		426
		427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		428	}
		429
		430	# the temporary/swap location
		431	sub save_path {
		432	my ($self) = @_;
		433
		434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		437	}
		438
		439	# the unique path, might be eq to save_path
		440	sub uniq_path {
		441	my ($self) = @_;
		442
		443	$self->{user_rel} || $self->{random}
		444	? undef
		445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		446	}
		447
		448	# return random map parameters, or undef
		449	sub random_map_params {
		450	my ($self) = @_;
		451
		452	$self->{random}
		453	}
		454
		455	# this is somewhat ugly, but style maps do need special treatment
		456	sub is_style_map {
		457	$_[0]{path} =~ m{^/styles/}
		458	}
		459
		460	package cf;
		461
		462	#############################################################################
		463
		464	=head2 ATTACHABLE OBJECTS
		465
		466	Many objects in crossfire are so-called attachable objects. That means you can
		467	attach callbacks/event handlers (a collection of which is called an "attachment")
		468	to it. All such attachable objects support the following methods.
		469
		470	In the following description, CLASS can be any of C<global>, C<object>
		471	C<player>, C<client> or C<map> (i.e. the attachable objects in
		472	crossfire+).
128		473
129	=over 4	474	=over 4
130		475
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...)	476	=item $attachable->attach ($attachment, key => $value...)
144		477
145	=item $map->detach ($attachment)	478	=item $attachable->detach ($attachment)
146		479
147	Attach/detach a pre-registered attachment to a map.	480	Attach/detach a pre-registered attachment to a specific object and give it
		481	the specified key/value pairs as arguments.
148		482
149	=item $bool = $object->attached ($name)	483	Example, attach a minesweeper attachment to the given object, making it a
		484	10x10 minesweeper game:
150		485
151	=item $bool = $player->attached ($name)	486	$obj->attach (minesweeper => width => 10, height => 10);
152		487
153	=item $bool = $map->attached ($name)	488	=item $bool = $attachable->attached ($name)
154		489
155	Checks wether the named attachment is currently attached to the object.	490	Checks wether the named attachment is currently attached to the object.
156		491
157	=item cf::attach_global ...	492	=item cf::CLASS->attach ...
158		493
159	Attach handlers for global events.	494	=item cf::CLASS->detach ...
160		495
161	This and all following C<attach_*>-functions expect any number of the	496	Define an anonymous attachment and attach it to all objects of the given
162	following handler/hook descriptions:	497	CLASS. See the next function for an explanation of its arguments.
		498
		499	You can attach to global events by using the C<cf::global> class.
		500
		501	Example, log all player logins:
		502
		503	cf::player->attach (
		504	on_login => sub {
		505	my ($pl) = @_;
		506	...
		507	},
		508	);
		509
		510	Example, attach to the jeweler skill:
		511
		512	cf::object->attach (
		513	type => cf::SKILL,
		514	subtype => cf::SK_JEWELER,
		515	on_use_skill => sub {
		516	my ($sk, $ob, $part, $dir, $msg) = @_;
		517	...
		518	},
		519	);
		520
		521	=item cf::CLASS::attachment $name, ...
		522
		523	Register an attachment by C<$name> through which attachable objects of the
		524	given CLASS can refer to this attachment.
		525
		526	Some classes such as crossfire maps and objects can specify attachments
		527	that are attached at load/instantiate time, thus the need for a name.
		528
		529	These calls expect any number of the following handler/hook descriptions:
163		530
164	=over 4	531	=over 4
165		532
166	=item prio => $number	533	=item prio => $number
167		534
…		…
169	by another C<prio> setting). Lower priority handlers get executed	536	by another C<prio> setting). Lower priority handlers get executed
170	earlier. The default priority is C<0>, and many built-in handlers are	537	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	538	registered at priority C<-1000>, so lower priorities should not be used
172	unless you know what you are doing.	539	unless you know what you are doing.
173		540
		541	=item type => $type
		542
		543	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		544	given type of objects only (the additional parameter C<subtype> can be
		545	used to further limit to the given subtype).
		546
174	=item on_I<event> => \&cb	547	=item on_I<event> => \&cb
175		548
176	Call the given code reference whenever the named event happens (event is	549	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	550	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	551	handlers are recognised generally depends on the type of object these
…		…
187	package and register them. Only handlers for eevents supported by the	560	package and register them. Only handlers for eevents supported by the
188	object/class are recognised.	561	object/class are recognised.
189		562
190	=back	563	=back
191		564
192	=item cf::attach_to_type $object_type, $subtype, ...	565	Example, define an attachment called "sockpuppet" that calls the given
		566	event handler when a monster attacks:
193		567
194	Attach handlers for a specific object type (e.g. TRANSPORT) and	568	cf::object::attachment sockpuppet =>
195	subtype. If C<$subtype> is zero or undef, matches all objects of the given	569	on_skill_attack => sub {
196	type.	570	my ($self, $victim) = @_;
197		571	...
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	}	572	}
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	573	}
419	}
420		574
421	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	575	=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		576
447	Just because you have a perl object does not mean that the corresponding	577	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	578	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	579	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	580	can be used to test for existence of the C object part without causing an
451	exception.	581	exception.
452		582
		583	=cut
		584
		585	# the following variables are defined in .xs and must not be re-created
		586	our @CB_GLOBAL = (); # registry for all global events
		587	our @CB_ATTACHABLE = (); # registry for all attachables
		588	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		589	our @CB_PLAYER = ();
		590	our @CB_CLIENT = ();
		591	our @CB_TYPE = (); # registry for type (cf-object class) based events
		592	our @CB_MAP = ();
		593
		594	my %attachment;
		595
		596	sub _attach_cb($$$$) {
		597	my ($registry, $event, $prio, $cb) = @_;
		598
		599	use sort 'stable';
		600
		601	$cb = [$prio, $cb];
		602
		603	@{$registry->[$event]} = sort
		604	{ $a->[0] cmp $b->[0] }
		605	@{$registry->[$event] || []}, $cb;
		606	}
		607
		608	# hack
		609	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		610
		611	# attach handles attaching event callbacks
		612	# the only thing the caller has to do is pass the correct
		613	# registry (== where the callback attaches to).
		614	sub _attach {
		615	my ($registry, $klass, @arg) = @_;
		616
		617	my $object_type;
		618	my $prio = 0;
		619	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		620
		621	#TODO: get rid of this hack
		622	if ($attachable_klass{$klass}) {
		623	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		624	}
		625
		626	while (@arg) {
		627	my $type = shift @arg;
		628
		629	if ($type eq "prio") {
		630	$prio = shift @arg;
		631
		632	} elsif ($type eq "type") {
		633	$object_type = shift @arg;
		634	$registry = $CB_TYPE[$object_type] ||= [];
		635
		636	} elsif ($type eq "subtype") {
		637	defined $object_type or Carp::croak "subtype specified without type";
		638	my $object_subtype = shift @arg;
		639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		640
		641	} elsif ($type eq "package") {
		642	my $pkg = shift @arg;
		643
		644	while (my ($name, $id) = each %cb_id) {
		645	if (my $cb = $pkg->can ($name)) {
		646	_attach_cb $registry, $id, $prio, $cb;
		647	}
		648	}
		649
		650	} elsif (exists $cb_id{$type}) {
		651	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		652
		653	} elsif (ref $type) {
		654	warn "attaching objects not supported, ignoring.\n";
		655
		656	} else {
		657	shift @arg;
		658	warn "attach argument '$type' not supported, ignoring.\n";
		659	}
		660	}
		661	}
		662
		663	sub _object_attach {
		664	my ($obj, $name, %arg) = @_;
		665
		666	return if exists $obj->{_attachment}{$name};
		667
		668	if (my $attach = $attachment{$name}) {
		669	my $registry = $obj->registry;
		670
		671	for (@$attach) {
		672	my ($klass, @attach) = @$_;
		673	_attach $registry, $klass, @attach;
		674	}
		675
		676	$obj->{$name} = \%arg;
		677	} else {
		678	warn "object uses attachment '$name' that is not available, postponing.\n";
		679	}
		680
		681	$obj->{_attachment}{$name} = undef;
		682	}
		683
		684	sub cf::attachable::attach {
		685	if (ref $_[0]) {
		686	_object_attach @_;
		687	} else {
		688	_attach shift->_attach_registry, @_;
		689	}
		690	};
		691
		692	# all those should be optimised
		693	sub cf::attachable::detach {
		694	my ($obj, $name) = @_;
		695
		696	if (ref $obj) {
		697	delete $obj->{_attachment}{$name};
		698	reattach ($obj);
		699	} else {
		700	Carp::croak "cannot, currently, detach class attachments";
		701	}
		702	};
		703
		704	sub cf::attachable::attached {
		705	my ($obj, $name) = @_;
		706
		707	exists $obj->{_attachment}{$name}
		708	}
		709
		710	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		711	eval "#line " . __LINE__ . " 'cf.pm'
		712	sub cf::\L$klass\E::_attach_registry {
		713	(\\\@CB_$klass, KLASS_$klass)
		714	}
		715
		716	sub cf::\L$klass\E::attachment {
		717	my \$name = shift;
		718
		719	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		720	}
		721	";
		722	die if $@;
		723	}
		724
		725	our $override;
		726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		727
		728	sub override {
		729	$override = 1;
		730	@invoke_results = ();
		731	}
		732
		733	sub do_invoke {
		734	my $event = shift;
		735	my $callbacks = shift;
		736
		737	@invoke_results = ();
		738
		739	local $override;
		740
		741	for (@$callbacks) {
		742	eval { &{$_->[1]} };
		743
		744	if ($@) {
		745	warn "$@";
		746	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		747	override;
		748	}
		749
		750	return 1 if $override;
		751	}
		752
		753	0
		754	}
		755
		756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		757
		758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		759
		760	Generate an object-specific event with the given arguments.
		761
		762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		763	removed in future versions), and there is no public API to access override
		764	results (if you must, access C<@cf::invoke_results> directly).
		765
453	=back	766	=back
454		767
455	=cut	768	=cut
456
457	*cf::object::valid =
458	*cf::player::valid =
459	*cf::map::valid = \&cf::_valid;
460		769
461	#############################################################################	770	#############################################################################
462	# object support	771	# object support
463		772
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 {	773	sub reattach {
		774	# basically do the same as instantiate, without calling instantiate
478	my ($obj) = @_;	775	my ($obj) = @_;
		776
479	my $registry = $obj->registry;	777	my $registry = $obj->registry;
480		778
481	@$registry = ();	779	@$registry = ();
482		780
483	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	781	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
484		782
485	for my $name (keys %{ $obj->{_attachment} || {} }) {	783	for my $name (keys %{ $obj->{_attachment} || {} }) {
486	if (my $attach = $attachment{$name}) {	784	if (my $attach = $attachment{$name}) {
487	for (@$attach) {	785	for (@$attach) {
488	my ($klass, @attach) = @$_;	786	my ($klass, @attach) = @$_;
489	_attach @$registry, $klass, @attach;	787	_attach $registry, $klass, @attach;
490	}	788	}
491	} else {	789	} else {
492	warn "object uses attachment '$name' that is not available, postponing.\n";	790	warn "object uses attachment '$name' that is not available, postponing.\n";
493	}	791	}
494	}	792	}
495	}	793	}
496		794
497	sub object_freezer_save {	795	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_freezer_as_string {
529	my ($rdata, $objs) = @_;
530
531	use Data::Dumper;
532
533	$$rdata . Dumper $objs
534	}
535
536	sub object_thawer_load {
537	my ($filename) = @_;
538
539	local $/;
540
541	my $av;
542
543	#TODO: use sysread etc.
544	if (open my $data, "<:raw:perlio", $filename) {
545	$data = <$data>;
546	if (open my $pst, "<:raw:perlio", "$filename.pst") {
547	$av = eval { (Storable::thaw <$pst>)->{objs} };
548	}
549	return ($data, $av);
550	}
551
552	()
553	}
554
555	attach_to_objects
556	prio => -1000000,	796	prio => -1000000,
		797	on_instantiate => sub {
		798	my ($obj, $data) = @_;
		799
		800	$data = from_json $data;
		801
		802	for (@$data) {
		803	my ($name, $args) = @$_;
		804
		805	$obj->attach ($name, %{$args || {} });
		806	}
		807	},
		808	on_reattach => \&reattach,
557	on_clone => sub {	809	on_clone => sub {
558	my ($src, $dst) = @_;	810	my ($src, $dst) = @_;
559		811
560	@{$dst->registry} = @{$src->registry};	812	@{$dst->registry} = @{$src->registry};
561		813
562	%$dst = %$src;	814	%$dst = %$src;
563		815
564	%{$dst->{_attachment}} = %{$src->{_attachment}}	816	%{$dst->{_attachment}} = %{$src->{_attachment}}
565	if exists $src->{_attachment};	817	if exists $src->{_attachment};
566	},	818	},
567	;	819	);
		820
		821	sub object_freezer_save {
		822	my ($filename, $rdata, $objs) = @_;
		823
		824	sync_job {
		825	if (length $$rdata) {
		826	warn sprintf "saving %s (%d,%d)\n",
		827	$filename, length $$rdata, scalar @$objs;
		828
		829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		830	chmod SAVE_MODE, $fh;
		831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		832	aio_fsync $fh;
		833	close $fh;
		834
		835	if (@$objs) {
		836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		837	chmod SAVE_MODE, $fh;
		838	my $data = Storable::nfreeze { version => 1, objs => $objs };
		839	aio_write $fh, 0, (length $data), $data, 0;
		840	aio_fsync $fh;
		841	close $fh;
		842	aio_rename "$filename.pst~", "$filename.pst";
		843	}
		844	} else {
		845	aio_unlink "$filename.pst";
		846	}
		847
		848	aio_rename "$filename~", $filename;
		849	} else {
		850	warn "FATAL: $filename~: $!\n";
		851	}
		852	} else {
		853	aio_unlink $filename;
		854	aio_unlink "$filename.pst";
		855	}
		856	}
		857	}
		858
		859	sub object_freezer_as_string {
		860	my ($rdata, $objs) = @_;
		861
		862	use Data::Dumper;
		863
		864	$$rdata . Dumper $objs
		865	}
		866
		867	sub object_thawer_load {
		868	my ($filename) = @_;
		869
		870	my ($data, $av);
		871
		872	(aio_load $filename, $data) >= 0
		873	or return;
		874
		875	unless (aio_stat "$filename.pst") {
		876	(aio_load "$filename.pst", $av) >= 0
		877	or return;
		878	$av = eval { (Storable::thaw $av)->{objs} };
		879	}
		880
		881	warn sprintf "loading %s (%d)\n",
		882	$filename, length $data, scalar @{$av || []};#d#
		883	return ($data, $av);
		884	}
568		885
569	#############################################################################	886	#############################################################################
570	# old plug-in events	887	# command handling &c
571		888
572	sub inject_event {	889	=item cf::register_command $name => \&callback($ob,$args);
573	my $extension = shift;
574	my $event_code = shift;
575		890
576	my $cb = $hook[$event_code]{$extension}	891	Register a callback for execution when the client sends the user command
577	or return;	892	$name.
578		893
579	&$cb	894	=cut
580	}
581
582	sub inject_global_event {
583	my $event = shift;
584
585	my $cb = $hook[$event]
586	or return;
587
588	List::Util::max map &$_, values %$cb
589	}
590
591	sub inject_command {
592	my ($name, $obj, $params) = @_;
593
594	for my $cmd (@{ $command{$name} }) {
595	$cmd->[1]->($obj, $params);
596	}
597
598	-1
599	}
600		895
601	sub register_command {	896	sub register_command {
602	my ($name, $time, $cb) = @_;	897	my ($name, $cb) = @_;
603		898
604	my $caller = caller;	899	my $caller = caller;
605	#warn "registering command '$name/$time' to '$caller'";	900	#warn "registering command '$name/$time' to '$caller'";
606		901
607	push @{ $command{$name} }, [$time, $cb, $caller];	902	push @{ $COMMAND{$name} }, [$caller, $cb];
608	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
609	}	903	}
		904
		905	=item cf::register_extcmd $name => \&callback($pl,$packet);
		906
		907	Register a callbackf ro execution when the client sends an extcmd packet.
		908
		909	If the callback returns something, it is sent back as if reply was being
		910	called.
		911
		912	=cut
610		913
611	sub register_extcmd {	914	sub register_extcmd {
612	my ($name, $cb) = @_;	915	my ($name, $cb) = @_;
613		916
614	my $caller = caller;	917	my $caller = caller;
615	#warn "registering extcmd '$name' to '$caller'";	918	#warn "registering extcmd '$name' to '$caller'";
616		919
617	$extcmd{$name} = [$cb, $caller];	920	$EXTCMD{$name} = [$cb, $caller];
618	}	921	}
		922
		923	cf::player->attach (
		924	on_command => sub {
		925	my ($pl, $name, $params) = @_;
		926
		927	my $cb = $COMMAND{$name}
		928	or return;
		929
		930	for my $cmd (@$cb) {
		931	$cmd->[1]->($pl->ob, $params);
		932	}
		933
		934	cf::override;
		935	},
		936	on_extcmd => sub {
		937	my ($pl, $buf) = @_;
		938
		939	my $msg = eval { from_json $buf };
		940
		941	if (ref $msg) {
		942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		943	if (my %reply = $cb->[0]->($pl, $msg)) {
		944	$pl->ext_reply ($msg->{msgid}, %reply);
		945	}
		946	}
		947	} else {
		948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		949	}
		950
		951	cf::override;
		952	},
		953	);
619		954
620	sub register {	955	sub register {
621	my ($base, $pkg) = @_;	956	my ($base, $pkg) = @_;
622		957
623	#TODO	958	#TODO
…		…
642	. "#line 1 \"$path\"\n{\n"	977	. "#line 1 \"$path\"\n{\n"
643	. (do { local $/; <$fh> })	978	. (do { local $/; <$fh> })
644	. "\n};\n1";	979	. "\n};\n1";
645		980
646	eval $source	981	eval $source
647	or die "$path: $@";	982	or die $@ ? "$path: $@\n"
		983	: "extension disabled.\n";
648		984
649	push @exts, $pkg;	985	push @exts, $pkg;
650	$ext_pkg{$base} = $pkg;	986	$ext_pkg{$base} = $pkg;
651		987
652	# no strict 'refs';	988	# no strict 'refs';
…		…
665	# for my $idx (0 .. $#PLUGIN_EVENT) {	1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
666	# delete $hook[$idx]{$pkg};	1002	# delete $hook[$idx]{$pkg};
667	# }	1003	# }
668		1004
669	# remove commands	1005	# remove commands
670	for my $name (keys %command) {	1006	for my $name (keys %COMMAND) {
671	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
672		1008
673	if (@cb) {	1009	if (@cb) {
674	$command{$name} = \@cb;	1010	$COMMAND{$name} = \@cb;
675	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
676	} else {	1011	} else {
677	delete $command{$name};
678	delete $COMMAND{"$name\000"};	1012	delete $COMMAND{$name};
679	}	1013	}
680	}	1014	}
681		1015
682	# remove extcmds	1016	# remove extcmds
683	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
684	delete $extcmd{$name};	1018	delete $EXTCMD{$name};
685	}	1019	}
686		1020
687	if (my $cb = $pkg->can ("unload")) {	1021	if (my $cb = $pkg->can ("unload")) {
688	eval {	1022	eval {
689	$cb->($pkg);	1023	$cb->($pkg);
…		…
693		1027
694	Symbol::delete_package $pkg;	1028	Symbol::delete_package $pkg;
695	}	1029	}
696		1030
697	sub load_extensions {	1031	sub load_extensions {
698	my $LIBDIR = maps_directory "perl";
699
700	for my $ext (<$LIBDIR/*.ext>) {	1032	for my $ext (<$LIBDIR/*.ext>) {
701	next unless -r $ext;	1033	next unless -r $ext;
702	eval {	1034	eval {
703	load_extension $ext;	1035	load_extension $ext;
704	1	1036	1
705	} or warn "$ext not loaded: $@";	1037	} or warn "$ext not loaded: $@";
706	}	1038	}
707	}	1039	}
708		1040
709	#############################################################################	1041	#############################################################################
710	# extcmd framework, basically convert ext <msg>
711	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
712
713	attach_to_players
714	on_extcmd => sub {
715	my ($pl, $buf) = @_;
716
717	my $msg = eval { from_json $buf };
718
719	if (ref $msg) {
720	if (my $cb = $extcmd{$msg->{msgtype}}) {
721	if (my %reply = $cb->[0]->($pl, $msg)) {
722	$pl->ext_reply ($msg->{msgid}, %reply);
723	}
724	}
725	} else {
726	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
727	}
728
729	cf::override;
730	},
731	;
732
733	#############################################################################
734	# load/save/clean perl data associated with a map	1042	# load/save/clean perl data associated with a map
735		1043
736	*cf::mapsupport::on_clean = sub {	1044	*cf::mapsupport::on_clean = sub {
737	my ($map) = @_;	1045	my ($map) = @_;
738		1046
…		…
740	defined $path or return;	1048	defined $path or return;
741		1049
742	unlink "$path.pst";	1050	unlink "$path.pst";
743	};	1051	};
744		1052
745	attach_to_maps prio => -10000, package => cf::mapsupport::;	1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
746		1054
747	#############################################################################	1055	#############################################################################
748	# load/save perl data associated with player->ob objects	1056	# load/save perl data associated with player->ob objects
749		1057
750	sub all_objects(@) {	1058	sub all_objects(@) {
751	@_, map all_objects ($_->inv), @_	1059	@_, map all_objects ($_->inv), @_
752	}	1060	}
753		1061
754	# TODO: compatibility cruft, remove when no longer needed	1062	# TODO: compatibility cruft, remove when no longer needed
755	attach_to_players	1063	cf::player->attach (
756	on_load => sub {	1064	on_load => sub {
757	my ($pl, $path) = @_;	1065	my ($pl, $path) = @_;
758		1066
759	for my $o (all_objects $pl->ob) {	1067	for my $o (all_objects $pl->ob) {
760	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
762		1070
763	%$o = %{ Storable::thaw pack "H*", $value };	1071	%$o = %{ Storable::thaw pack "H*", $value };
764	}	1072	}
765	}	1073	}
766	},	1074	},
767	;	1075	);
768		1076
769	#############################################################################	1077	#############################################################################
770		1078
771	=head2 CORE EXTENSIONS	1079	=head2 CORE EXTENSIONS
772		1080
773	Functions and methods that extend core crossfire objects.	1081	Functions and methods that extend core crossfire objects.
		1082
		1083	=head3 cf::player
774		1084
775	=over 4	1085	=over 4
776		1086
777	=item cf::player::exists $login	1087	=item cf::player::exists $login
778		1088
…		…
783	sub cf::player::exists($) {	1093	sub cf::player::exists($) {
784	cf::player::find $_[0]	1094	cf::player::find $_[0]
785	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
786	}	1096	}
787		1097
		1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1099
		1100	Sends an ext reply to the player.
		1101
		1102	=cut
		1103
		1104	sub cf::player::ext_reply($$$%) {
		1105	my ($self, $id, %msg) = @_;
		1106
		1107	$msg{msgid} = $id;
		1108
		1109	$self->send ("ext " . to_json \%msg);
		1110	}
		1111
		1112	=back
		1113
		1114
		1115	=head3 cf::map
		1116
		1117	=over 4
		1118
		1119	=cut
		1120
		1121	package cf::map;
		1122
		1123	use Fcntl;
		1124	use Coro::AIO;
		1125
		1126	our $MAX_RESET = 3600;
		1127	our $DEFAULT_RESET = 3000;
		1128
		1129	sub generate_random_map {
		1130	my ($path, $rmp) = @_;
		1131
		1132	# mit "rum" bekleckern, nicht
		1133	cf::map::_create_random_map
		1134	$path,
		1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1138	$rmp->{exit_on_final_map},
		1139	$rmp->{xsize}, $rmp->{ysize},
		1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1145	(cf::region::find $rmp->{region})
		1146	}
		1147
		1148	# and all this just because we cannot iterate over
		1149	# all maps in C++...
		1150	sub change_all_map_light {
		1151	my ($change) = @_;
		1152
		1153	$_->change_map_light ($change)
		1154	for grep $_->outdoor, values %cf::MAP;
		1155	}
		1156
		1157	sub try_load_header($) {
		1158	my ($path) = @_;
		1159
		1160	utf8::encode $path;
		1161	aio_open $path, O_RDONLY, 0
		1162	or return;
		1163
		1164	my $map = cf::map::new
		1165	or return;
		1166
		1167	# for better error messages only, will be overwritten
		1168	$map->path ($path);
		1169
		1170	$map->load_header ($path)
		1171	or return;
		1172
		1173	$map->{load_path} = $path;
		1174
		1175	$map
		1176	}
		1177
		1178	sub find;
		1179	sub find {
		1180	my ($path, $origin) = @_;
		1181
		1182	#warn "find<$path,$origin>\n";#d#
		1183
		1184	$path = new cf::path $path, $origin && $origin->path;
		1185	my $key = $path->as_string;
		1186
		1187	cf::lock_wait "map_find:$key";
		1188
		1189	$cf::MAP{$key} || do {
		1190	my $guard = cf::lock_acquire "map_find:$key";
		1191
		1192	# do it the slow way
		1193	my $map = try_load_header $path->save_path;
		1194
		1195	Coro::cede;
		1196
		1197	if ($map) {
		1198	$map->last_access ((delete $map->{last_access})
		1199	|| $cf::RUNTIME); #d#
		1200	# safety
		1201	$map->{instantiate_time} = $cf::RUNTIME
		1202	if $map->{instantiate_time} > $cf::RUNTIME;
		1203	} else {
		1204	if (my $rmp = $path->random_map_params) {
		1205	$map = generate_random_map $key, $rmp;
		1206	} else {
		1207	$map = try_load_header $path->load_path;
		1208	}
		1209
		1210	$map or return;
		1211
		1212	$map->{load_original} = 1;
		1213	$map->{instantiate_time} = $cf::RUNTIME;
		1214	$map->last_access ($cf::RUNTIME);
		1215	$map->instantiate;
		1216
		1217	# per-player maps become, after loading, normal maps
		1218	$map->per_player (0) if $path->{user_rel};
		1219	}
		1220
		1221	$map->path ($key);
		1222	$map->{path} = $path;
		1223	$map->{last_save} = $cf::RUNTIME;
		1224
		1225	Coro::cede;
		1226
		1227	if ($map->should_reset) {
		1228	$map->reset;
		1229	undef $guard;
		1230	$map = find $path
		1231	or return;
		1232	}
		1233
		1234	$cf::MAP{$key} = $map
		1235	}
		1236	}
		1237
		1238	sub load {
		1239	my ($self) = @_;
		1240
		1241	my $path = $self->{path};
		1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1243
		1244	return if $self->in_memory != cf::MAP_SWAPPED;
		1245
		1246	$self->in_memory (cf::MAP_LOADING);
		1247
		1248	$self->alloc;
		1249	$self->load_objects ($self->{load_path}, 1)
		1250	or return;
		1251
		1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1253	if delete $self->{load_original};
		1254
		1255	if (my $uniq = $path->uniq_path) {
		1256	utf8::encode $uniq;
		1257	if (aio_open $uniq, O_RDONLY, 0) {
		1258	$self->clear_unique_items;
		1259	$self->load_objects ($uniq, 0);
		1260	}
		1261	}
		1262
		1263	Coro::cede;
		1264
		1265	# now do the right thing for maps
		1266	$self->link_multipart_objects;
		1267
		1268	if ($self->{path}->is_style_map) {
		1269	$self->{deny_save} = 1;
		1270	$self->{deny_reset} = 1;
		1271	} else {
		1272	$self->fix_auto_apply;
		1273	$self->decay_objects;
		1274	$self->update_buttons;
		1275	$self->set_darkness_map;
		1276	$self->difficulty ($self->estimate_difficulty)
		1277	unless $self->difficulty;
		1278	$self->activate;
		1279	}
		1280
		1281	Coro::cede;
		1282
		1283	$self->in_memory (cf::MAP_IN_MEMORY);
		1284	}
		1285
		1286	sub find_sync {
		1287	my ($path, $origin) = @_;
		1288
		1289	cf::sync_job { cf::map::find $path, $origin }
		1290	}
		1291
		1292	sub do_load_sync {
		1293	my ($map) = @_;
		1294
		1295	cf::sync_job { $map->load };
		1296	}
		1297
		1298	sub save {
		1299	my ($self) = @_;
		1300
		1301	$self->{last_save} = $cf::RUNTIME;
		1302
		1303	return unless $self->dirty;
		1304
		1305	my $save = $self->{path}->save_path; utf8::encode $save;
		1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1307
		1308	$self->{load_path} = $save;
		1309
		1310	return if $self->{deny_save};
		1311
		1312	local $self->{last_access} = $self->last_access;#d#
		1313
		1314	if ($uniq) {
		1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1316	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1317	} else {
		1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1319	}
		1320	}
		1321
		1322	sub swap_out {
		1323	my ($self) = @_;
		1324
		1325	# save first because save cedes
		1326	$self->save;
		1327
		1328	return if $self->players;
		1329	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1330	return if $self->{deny_save};
		1331
		1332	$self->clear;
		1333	$self->in_memory (cf::MAP_SWAPPED);
		1334	}
		1335
		1336	sub reset_at {
		1337	my ($self) = @_;
		1338
		1339	# TODO: safety, remove and allow resettable per-player maps
		1340	return 1e99 if $self->{path}{user_rel};
		1341	return 1e99 if $self->{deny_reset};
		1342
		1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1345
		1346	$time + $to
		1347	}
		1348
		1349	sub should_reset {
		1350	my ($self) = @_;
		1351
		1352	$self->reset_at <= $cf::RUNTIME
		1353	}
		1354
		1355	sub unlink_save {
		1356	my ($self) = @_;
		1357
		1358	utf8::encode (my $save = $self->{path}->save_path);
		1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1361	}
		1362
		1363	sub rename {
		1364	my ($self, $new_path) = @_;
		1365
		1366	$self->unlink_save;
		1367
		1368	delete $cf::MAP{$self->path};
		1369	$self->{path} = new cf::path $new_path;
		1370	$self->path ($self->{path}->as_string);
		1371	$cf::MAP{$self->path} = $self;
		1372
		1373	$self->save;
		1374	}
		1375
		1376	sub reset {
		1377	my ($self) = @_;
		1378
		1379	return if $self->players;
		1380	return if $self->{path}{user_rel};#d#
		1381
		1382	warn "resetting map ", $self->path;#d#
		1383
		1384	delete $cf::MAP{$self->path};
		1385
		1386	$_->clear_links_to ($self) for values %cf::MAP;
		1387
		1388	$self->unlink_save;
		1389	$self->destroy;
		1390	}
		1391
		1392	my $nuke_counter = "aaaa";
		1393
		1394	sub nuke {
		1395	my ($self) = @_;
		1396
		1397	$self->{deny_save} = 1;
		1398	$self->reset_timeout (1);
		1399	$self->rename ("{nuke}/" . ($nuke_counter++));
		1400	$self->reset; # polite request, might not happen
		1401	}
		1402
		1403	sub customise_for {
		1404	my ($map, $ob) = @_;
		1405
		1406	if ($map->per_player) {
		1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1408	}
		1409
		1410	$map
		1411	}
		1412
		1413	sub emergency_save {
		1414	my $freeze_guard = cf::freeze_mainloop;
		1415
		1416	warn "enter emergency map save\n";
		1417
		1418	cf::sync_job {
		1419	warn "begin emergency map save\n";
		1420	$_->save for values %cf::MAP;
		1421	};
		1422
		1423	warn "end emergency map save\n";
		1424	}
		1425
		1426	package cf;
		1427
		1428	=back
		1429
		1430
		1431	=head3 cf::object::player
		1432
		1433	=over 4
		1434
788	=item $player_object->reply ($npc, $msg[, $flags])	1435	=item $player_object->reply ($npc, $msg[, $flags])
789		1436
790	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1437	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
791	can be C<undef>. Does the right thing when the player is currently in a	1438	can be C<undef>. Does the right thing when the player is currently in a
792	dialogue with the given NPC character.	1439	dialogue with the given NPC character.
793		1440
794	=cut	1441	=cut
795		1442
796	# rough implementation of a future "reply" method that works	1443	# rough implementation of a future "reply" method that works
797	# with dialog boxes.	1444	# with dialog boxes.
		1445	#TODO: the first argument must go, split into a $npc->reply_to ( method
798	sub cf::object::player::reply($$$;$) {	1446	sub cf::object::player::reply($$$;$) {
799	my ($self, $npc, $msg, $flags) = @_;	1447	my ($self, $npc, $msg, $flags) = @_;
800		1448
801	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
802		1450
…		…
806	$msg = $npc->name . " says: $msg" if $npc;	1454	$msg = $npc->name . " says: $msg" if $npc;
807	$self->message ($msg, $flags);	1455	$self->message ($msg, $flags);
808	}	1456	}
809	}	1457	}
810		1458
811	=item $player->ext_reply ($msgid, $msgtype, %msg)
812
813	Sends an ext reply to the player.
814
815	=cut
816
817	sub cf::player::ext_reply($$$%) {
818	my ($self, $id, %msg) = @_;
819
820	$msg{msgid} = $id;
821
822	$self->send ("ext " . to_json \%msg);
823	}
824
825	=item $player_object->may ("access")	1459	=item $player_object->may ("access")
826		1460
827	Returns wether the given player is authorized to access resource "access"	1461	Returns wether the given player is authorized to access resource "access"
828	(e.g. "command_wizcast").	1462	(e.g. "command_wizcast").
829		1463
…		…
836	(ref $cf::CFG{"may_$access"}	1470	(ref $cf::CFG{"may_$access"}
837	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1471	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
838	: $cf::CFG{"may_$access"})	1472	: $cf::CFG{"may_$access"})
839	}	1473	}
840		1474
841	=cut	1475	=item $player_object->enter_link
842		1476
843	#############################################################################	1477	Freezes the player and moves him/her to a special map (C<{link}>).
		1478
		1479	The player should be reaosnably safe there for short amounts of time. You
		1480	I<MUST> call C<leave_link> as soon as possible, though.
		1481
		1482	=item $player_object->leave_link ($map, $x, $y)
		1483
		1484	Moves the player out of the specila link map onto the given map. If the
		1485	map is not valid (or omitted), the player will be moved back to the
		1486	location he/she was before the call to C<enter_link>, or, if that fails,
		1487	to the emergency map position.
		1488
		1489	Might block.
		1490
		1491	=cut
		1492
		1493	sub cf::object::player::enter_link {
		1494	my ($self) = @_;
		1495
		1496	$self->deactivate_recursive;
		1497
		1498	return if $self->map == $LINK_MAP;
		1499
		1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1501	if $self->map;
		1502
		1503	$self->enter_map ($LINK_MAP, 20, 20);
		1504	}
		1505
		1506	sub cf::object::player::leave_link {
		1507	my ($self, $map, $x, $y) = @_;
		1508
		1509	my $link_pos = delete $self->{_link_pos};
		1510
		1511	unless ($map) {
		1512	# restore original map position
		1513	($map, $x, $y) = @{ $link_pos || [] };
		1514	$map = cf::map::find $map;
		1515
		1516	unless ($map) {
		1517	($map, $x, $y) = @$EMERGENCY_POSITION;
		1518	$map = cf::map::find $map
		1519	or die "FATAL: cannot load emergency map\n";
		1520	}
		1521	}
		1522
		1523	($x, $y) = (-1, -1)
		1524	unless (defined $x) && (defined $y);
		1525
		1526	# use -1 or undef as default coordinates, not 0, 0
		1527	($x, $y) = ($map->enter_x, $map->enter_y)
		1528	if $x <=0 && $y <= 0;
		1529
		1530	$map->load;
		1531
		1532	$self->activate_recursive;
		1533	$self->enter_map ($map, $x, $y);
		1534	}
		1535
		1536	cf::player->attach (
		1537	on_logout => sub {
		1538	my ($pl) = @_;
		1539
		1540	# abort map switching before logout
		1541	if ($pl->ob->{_link_pos}) {
		1542	cf::sync_job {
		1543	$pl->ob->leave_link
		1544	};
		1545	}
		1546	},
		1547	on_login => sub {
		1548	my ($pl) = @_;
		1549
		1550	# try to abort aborted map switching on player login :)
		1551	# should happen only on crashes
		1552	if ($pl->ob->{_link_pos}) {
		1553	$pl->ob->enter_link;
		1554	cf::async {
		1555	# we need this sleep as the login has a concurrent enter_exit running
		1556	# and this sleep increases chances of the player not ending up in scorn
		1557	Coro::Timer::sleep 1;
		1558	$pl->ob->leave_link;
		1559	};
		1560	}
		1561	},
		1562	);
		1563
		1564	=item $player_object->goto ($path, $x, $y)
		1565
		1566	=cut
		1567
		1568	sub cf::object::player::goto {
		1569	my ($self, $path, $x, $y) = @_;
		1570
		1571	$self->enter_link;
		1572
		1573	(cf::async {
		1574	$path = new cf::path $path;
		1575
		1576	my $map = cf::map::find $path->as_string;
		1577	$map = $map->customise_for ($self) if $map;
		1578
		1579	# warn "entering ", $map->path, " at ($x, $y)\n"
		1580	# if $map;
		1581
		1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1583
		1584	$self->leave_link ($map, $x, $y);
		1585	})->prio (1);
		1586	}
		1587
		1588	=item $player_object->enter_exit ($exit_object)
		1589
		1590	=cut
		1591
		1592	sub parse_random_map_params {
		1593	my ($spec) = @_;
		1594
		1595	my $rmp = { # defaults
		1596	xsize => 10,
		1597	ysize => 10,
		1598	};
		1599
		1600	for (split /\n/, $spec) {
		1601	my ($k, $v) = split /\s+/, $_, 2;
		1602
		1603	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1604	}
		1605
		1606	$rmp
		1607	}
		1608
		1609	sub prepare_random_map {
		1610	my ($exit) = @_;
		1611
		1612	# all this does is basically replace the /! path by
		1613	# a new random map path (?random/...) with a seed
		1614	# that depends on the exit object
		1615
		1616	my $rmp = parse_random_map_params $exit->msg;
		1617
		1618	if ($exit->map) {
		1619	$rmp->{region} = $exit->map->region_name;
		1620	$rmp->{origin_map} = $exit->map->path;
		1621	$rmp->{origin_x} = $exit->x;
		1622	$rmp->{origin_y} = $exit->y;
		1623	}
		1624
		1625	$rmp->{random_seed} ||= $exit->random_seed;
		1626
		1627	my $data = cf::to_json $rmp;
		1628	my $md5 = Digest::MD5::md5_hex $data;
		1629
		1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1631	aio_write $fh, 0, (length $data), $data, 0;
		1632
		1633	$exit->slaying ("?random/$md5");
		1634	$exit->msg (undef);
		1635	}
		1636	}
		1637
		1638	sub cf::object::player::enter_exit {
		1639	my ($self, $exit) = @_;
		1640
		1641	return unless $self->type == cf::PLAYER;
		1642
		1643	$self->enter_link;
		1644
		1645	(cf::async {
		1646	$self->deactivate_recursive; # just to be sure
		1647	unless (eval {
		1648	prepare_random_map $exit
		1649	if $exit->slaying eq "/!";
		1650
		1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1652	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1653
		1654	1;
		1655	}) {
		1656	$self->message ("Something went wrong deep within the crossfire server. "
		1657	. "I'll try to bring you back to the map you were before. "
		1658	. "Please report this to the dungeon master",
		1659	cf::NDI_UNIQUE | cf::NDI_RED);
		1660
		1661	warn "ERROR in enter_exit: $@";
		1662	$self->leave_link;
		1663	}
		1664	})->prio (1);
		1665	}
		1666
		1667	=head3 cf::client
		1668
		1669	=over 4
		1670
		1671	=item $client->send_drawinfo ($text, $flags)
		1672
		1673	Sends a drawinfo packet to the client. Circumvents output buffering so
		1674	should not be used under normal circumstances.
		1675
		1676	=cut
		1677
		1678	sub cf::client::send_drawinfo {
		1679	my ($self, $text, $flags) = @_;
		1680
		1681	utf8::encode $text;
		1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1683	}
		1684
		1685
		1686	=item $success = $client->query ($flags, "text", \&cb)
		1687
		1688	Queues a query to the client, calling the given callback with
		1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1691
		1692	Queries can fail, so check the return code. Or don't, as queries will become
		1693	reliable at some point in the future.
		1694
		1695	=cut
		1696
		1697	sub cf::client::query {
		1698	my ($self, $flags, $text, $cb) = @_;
		1699
		1700	return unless $self->state == ST_PLAYING
		1701	|| $self->state == ST_SETUP
		1702	|| $self->state == ST_CUSTOM;
		1703
		1704	$self->state (ST_CUSTOM);
		1705
		1706	utf8::encode $text;
		1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1708
		1709	$self->send_packet ($self->{query_queue}[0][0])
		1710	if @{ $self->{query_queue} } == 1;
		1711	}
		1712
		1713	cf::client->attach (
		1714	on_reply => sub {
		1715	my ($ns, $msg) = @_;
		1716
		1717	# this weird shuffling is so that direct followup queries
		1718	# get handled first
		1719	my $queue = delete $ns->{query_queue}
		1720	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1721
		1722	(shift @$queue)->[1]->($msg);
		1723
		1724	push @{ $ns->{query_queue} }, @$queue;
		1725
		1726	if (@{ $ns->{query_queue} } == @$queue) {
		1727	if (@$queue) {
		1728	$ns->send_packet ($ns->{query_queue}[0][0]);
		1729	} else {
		1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1731	}
		1732	}
		1733	},
		1734	);
		1735
		1736	=item $client->coro (\&cb)
		1737
		1738	Create a new coroutine, running the specified callback. The coroutine will
		1739	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1740	or loss of connection).
		1741
		1742	=cut
		1743
		1744	sub cf::client::coro {
		1745	my ($self, $cb) = @_;
		1746
		1747	my $coro = &cf::async ($cb);
		1748
		1749	$coro->on_destroy (sub {
		1750	delete $self->{_coro}{$coro+0};
		1751	});
		1752
		1753	$self->{_coro}{$coro+0} = $coro;
		1754
		1755	$coro
		1756	}
		1757
		1758	cf::client->attach (
		1759	on_destroy => sub {
		1760	my ($ns) = @_;
		1761
		1762	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1763	},
		1764	);
		1765
		1766	=back
		1767
844		1768
845	=head2 SAFE SCRIPTING	1769	=head2 SAFE SCRIPTING
846		1770
847	Functions that provide a safe environment to compile and execute	1771	Functions that provide a safe environment to compile and execute
848	snippets of perl code without them endangering the safety of the server	1772	snippets of perl code without them endangering the safety of the server
…		…
863		1787
864	=pod	1788	=pod
865		1789
866	The following fucntions and emthods are available within a safe environment:	1790	The following fucntions and emthods are available within a safe environment:
867		1791
868	cf::object contr pay_amount pay_player	1792	cf::object contr pay_amount pay_player map
869	cf::object::player player	1793	cf::object::player player
870	cf::player peaceful	1794	cf::player peaceful
		1795	cf::map trigger
871		1796
872	=cut	1797	=cut
873		1798
874	for (	1799	for (
875	["cf::object" => qw(contr pay_amount pay_player)],	1800	["cf::object" => qw(contr pay_amount pay_player map)],
876	["cf::object::player" => qw(player)],	1801	["cf::object::player" => qw(player)],
877	["cf::player" => qw(peaceful)],	1802	["cf::player" => qw(peaceful)],
		1803	["cf::map" => qw(trigger)],
878	) {	1804	) {
879	no strict 'refs';	1805	no strict 'refs';
880	my ($pkg, @funs) = @$_;	1806	my ($pkg, @funs) = @$_;
881	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1807	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
882	for @funs;	1808	for @funs;
…		…
998		1924
999	{	1925	{
1000	my $path = cf::localdir . "/database.pst";	1926	my $path = cf::localdir . "/database.pst";
1001		1927
1002	sub db_load() {	1928	sub db_load() {
1003	warn "loading database $path\n";#d# remove later
1004	$DB = stat $path ? Storable::retrieve $path : { };	1929	$DB = stat $path ? Storable::retrieve $path : { };
1005	}	1930	}
1006		1931
1007	my $pid;	1932	my $pid;
1008		1933
1009	sub db_save() {	1934	sub db_save() {
1010	warn "saving database $path\n";#d# remove later
1011	waitpid $pid, 0 if $pid;	1935	waitpid $pid, 0 if $pid;
1012	if (0 == ($pid = fork)) {	1936	if (0 == ($pid = fork)) {
1013	$DB->{_meta}{version} = 1;	1937	$DB->{_meta}{version} = 1;
1014	Storable::nstore $DB, "$path~";	1938	Storable::nstore $DB, "$path~";
1015	rename "$path~", $path;	1939	rename "$path~", $path;
…		…
1022	sub db_sync() {	1946	sub db_sync() {
1023	db_save if $dirty;	1947	db_save if $dirty;
1024	undef $dirty;	1948	undef $dirty;
1025	}	1949	}
1026		1950
1027	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1028	db_sync;	1952	db_sync;
1029	});	1953	});
1030		1954
1031	sub db_dirty() {	1955	sub db_dirty() {
1032	$dirty = 1;	1956	$dirty = 1;
…		…
1046	$DB->{$_[0]} = $_[1];	1970	$DB->{$_[0]} = $_[1];
1047	}	1971	}
1048	db_dirty;	1972	db_dirty;
1049	}	1973	}
1050		1974
1051	attach_global	1975	cf::global->attach (
1052	prio => 10000,	1976	prio => 10000,
1053	on_cleanup => sub {	1977	on_cleanup => sub {
1054	db_sync;	1978	db_sync;
1055	},	1979	},
1056	;	1980	);
1057	}	1981	}
1058		1982
1059	#############################################################################	1983	#############################################################################
1060	# the server's main()	1984	# the server's main()
1061		1985
…		…
1063	open my $fh, "<:utf8", cf::confdir . "/config"	1987	open my $fh, "<:utf8", cf::confdir . "/config"
1064	or return;	1988	or return;
1065		1989
1066	local $/;	1990	local $/;
1067	*CFG = YAML::Syck::Load <$fh>;	1991	*CFG = YAML::Syck::Load <$fh>;
		1992
		1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		1994
		1995	if (exists $CFG{mlockall}) {
		1996	eval {
		1997	$CFG{mlockall} ? &mlockall : &munlockall
		1998	and die "WARNING: m(un)lockall failed: $!\n";
		1999	};
		2000	warn $@ if $@;
		2001	}
1068	}	2002	}
1069		2003
1070	sub main {	2004	sub main {
		2005	# we must not ever block the main coroutine
		2006	local $Coro::idle = sub {
		2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2008	(Coro::unblock_sub {
		2009	Event::one_event;
		2010	})->();
		2011	};
		2012
1071	cfg_load;	2013	cfg_load;
1072	db_load;	2014	db_load;
1073	load_extensions;	2015	load_extensions;
1074	Event::loop;	2016	Event::loop;
1075	}	2017	}
1076		2018
1077	#############################################################################	2019	#############################################################################
1078	# initialisation	2020	# initialisation
1079		2021
1080	sub _perl_reload(&) {	2022	sub reload() {
1081	my ($msg) = @_;	2023	# can/must only be called in main
		2024	if ($Coro::current != $Coro::main) {
		2025	warn "can only reload from main coroutine\n";
		2026	return;
		2027	}
1082		2028
1083	$msg->("reloading...");	2029	warn "reloading...";
		2030
		2031	my $guard = freeze_mainloop;
		2032	cf::emergency_save;
1084		2033
1085	eval {	2034	eval {
		2035	# if anything goes wrong in here, we should simply crash as we already saved
		2036
1086	# cancel all watchers	2037	# cancel all watchers
1087	$_->cancel for Event::all_watchers;	2038	for (Event::all_watchers) {
		2039	$_->cancel if $_->data & WF_AUTOCANCEL;
		2040	}
		2041
		2042	# cancel all extension coros
		2043	$_->cancel for values %EXT_CORO;
		2044	%EXT_CORO = ();
1088		2045
1089	# unload all extensions	2046	# unload all extensions
1090	for (@exts) {	2047	for (@exts) {
1091	$msg->("unloading <$_>");	2048	warn "unloading <$_>";
1092	unload_extension $_;	2049	unload_extension $_;
1093	}	2050	}
1094		2051
1095	# unload all modules loaded from $LIBDIR	2052	# unload all modules loaded from $LIBDIR
1096	while (my ($k, $v) = each %INC) {	2053	while (my ($k, $v) = each %INC) {
1097	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1098		2055
1099	$msg->("removing <$k>");	2056	warn "removing <$k>";
1100	delete $INC{$k};	2057	delete $INC{$k};
1101		2058
1102	$k =~ s/\.pm$//;	2059	$k =~ s/\.pm$//;
1103	$k =~ s/\//::/g;	2060	$k =~ s/\//::/g;
1104		2061
…		…
1109	Symbol::delete_package $k;	2066	Symbol::delete_package $k;
1110	}	2067	}
1111		2068
1112	# sync database to disk	2069	# sync database to disk
1113	cf::db_sync;	2070	cf::db_sync;
		2071	IO::AIO::flush;
1114		2072
1115	# get rid of safe::, as good as possible	2073	# get rid of safe::, as good as possible
1116	Symbol::delete_package "safe::$_"	2074	Symbol::delete_package "safe::$_"
1117	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1118		2076
1119	# remove register_script_function callbacks	2077	# remove register_script_function callbacks
1120	# TODO	2078	# TODO
1121		2079
1122	# unload cf.pm "a bit"	2080	# unload cf.pm "a bit"
…		…
1125	# don't, removes xs symbols, too,	2083	# don't, removes xs symbols, too,
1126	# and global variables created in xs	2084	# and global variables created in xs
1127	#Symbol::delete_package __PACKAGE__;	2085	#Symbol::delete_package __PACKAGE__;
1128		2086
1129	# reload cf.pm	2087	# reload cf.pm
1130	$msg->("reloading cf.pm");	2088	warn "reloading cf.pm";
1131	require cf;	2089	require cf;
		2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1132		2091
1133	# load config and database again	2092	# load config and database again
1134	cf::cfg_load;	2093	cf::cfg_load;
1135	cf::db_load;	2094	cf::db_load;
1136		2095
1137	# load extensions	2096	# load extensions
1138	$msg->("load extensions");	2097	warn "load extensions";
1139	cf::load_extensions;	2098	cf::load_extensions;
1140		2099
1141	# reattach attachments to objects	2100	# reattach attachments to objects
1142	$msg->("reattach");	2101	warn "reattach";
1143	_global_reattach;	2102	_global_reattach;
1144	};	2103	};
1145	$msg->($@) if $@;
1146		2104
1147	$msg->("reloaded");	2105	if ($@) {
		2106	warn $@;
		2107	warn "error while reloading, exiting.";
		2108	exit 1;
		2109	}
		2110
		2111	warn "reloaded successfully";
1148	};	2112	};
1149		2113
1150	sub perl_reload() {	2114	#############################################################################
1151	_perl_reload {
1152	warn $_[0];
1153	print "$_[0]\n";
1154	};
1155	}
1156		2115
		2116	unless ($LINK_MAP) {
		2117	$LINK_MAP = cf::map::new;
		2118
		2119	$LINK_MAP->width (41);
		2120	$LINK_MAP->height (41);
		2121	$LINK_MAP->alloc;
		2122	$LINK_MAP->path ("{link}");
		2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2125
		2126	# dirty hack because... archetypes are not yet loaded
		2127	Event->timer (
		2128	after => 2,
		2129	cb => sub {
		2130	$_[0]->w->cancel;
		2131
		2132	# provide some exits "home"
		2133	my $exit = cf::object::new "exit";
		2134
		2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2138
		2139	$LINK_MAP->insert ($exit->clone, 19, 19);
		2140	$LINK_MAP->insert ($exit->clone, 19, 20);
		2141	$LINK_MAP->insert ($exit->clone, 19, 21);
		2142	$LINK_MAP->insert ($exit->clone, 20, 19);
		2143	$LINK_MAP->insert ($exit->clone, 20, 21);
		2144	$LINK_MAP->insert ($exit->clone, 21, 19);
		2145	$LINK_MAP->insert ($exit->clone, 21, 20);
		2146	$LINK_MAP->insert ($exit->clone, 21, 21);
		2147
		2148	$exit->destroy;
		2149	});
		2150
		2151	$LINK_MAP->{deny_save} = 1;
		2152	$LINK_MAP->{deny_reset} = 1;
		2153
		2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2155	}
		2156
		2157	register "<global>", __PACKAGE__;
		2158
1157	register_command "perl-reload", 0, sub {	2159	register_command "reload" => sub {
1158	my ($who, $arg) = @_;	2160	my ($who, $arg) = @_;
1159		2161
1160	if ($who->flag (FLAG_WIZ)) {	2162	if ($who->flag (FLAG_WIZ)) {
1161	_perl_reload {	2163	$who->message ("start of reload.");
1162	warn $_[0];	2164	reload;
1163	$who->message ($_[0]);	2165	$who->message ("end of reload.");
1164	};
1165	}	2166	}
1166	};	2167	};
1167		2168
1168	register "<global>", __PACKAGE__;
1169
1170	unshift @INC, $LIBDIR;	2169	unshift @INC, $LIBDIR;
1171		2170
1172	$TICK_WATCHER = Event->timer (	2171	$TICK_WATCHER = Event->timer (
		2172	reentrant => 0,
1173	prio => 1,	2173	prio => 0,
1174	async => 1,
1175	at => $NEXT_TICK || 1,	2174	at => $NEXT_TICK || $TICK,
		2175	data => WF_AUTOCANCEL,
1176	cb => sub {	2176	cb => sub {
1177	cf::server_tick; # one server iteration	2177	cf::server_tick; # one server iteration
1178		2178	$RUNTIME += $TICK;
1179	my $NOW = Event::time;
1180	$NEXT_TICK += $TICK;	2179	$NEXT_TICK += $TICK;
1181		2180
1182	# if we are delayed by four ticks or more, skip them all	2181	# if we are delayed by four ticks or more, skip them all
1183	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1184		2183
1185	$TICK_WATCHER->at ($NEXT_TICK);	2184	$TICK_WATCHER->at ($NEXT_TICK);
1186	$TICK_WATCHER->start;	2185	$TICK_WATCHER->start;
1187	},	2186	},
1188	);	2187	);
1189		2188
1190	IO::AIO::max_poll_time $TICK * 0.2;	2189	IO::AIO::max_poll_time $TICK * 0.2;
1191		2190
		2191	Event->io (
1192	Event->io (fd => IO::AIO::poll_fileno,	2192	fd => IO::AIO::poll_fileno,
1193	poll => 'r',	2193	poll => 'r',
1194	prio => 5,	2194	prio => 5,
		2195	data => WF_AUTOCANCEL,
1195	cb => \&IO::AIO::poll_cb);	2196	cb => \&IO::AIO::poll_cb,
		2197	);
		2198
		2199	Event->timer (
		2200	data => WF_AUTOCANCEL,
		2201	after => 0,
		2202	interval => 10,
		2203	cb => sub {
		2204	(Coro::unblock_sub {
		2205	write_runtime
		2206	or warn "ERROR: unable to write runtime file: $!";
		2207	})->();
		2208	},
		2209	);
		2210
		2211	END { cf::emergency_save }
1196		2212
1197	1	2213	1
1198		2214

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