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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.155 by root, Tue Jan 9 21:32:42 2007 UTC vs.
Revision 1.427 by root, Sat Apr 26 12:25:45 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
3	use utf8;	24	use utf8;
4	use strict;	25	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV 3.2;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro 3.3 ();	36	use Coro 4.50 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::EV;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
18	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
19		47
		48	use JSON::XS 2.01 ();
		49	use BDB ();
20	use Data::Dumper;	50	use Data::Dumper;
21	use Digest::MD5;	51	use Digest::MD5;
22	use Fcntl;	52	use Fcntl;
		53	use YAML ();
23	use IO::AIO 2.32 ();	54	use IO::AIO 2.51 ();
24	use YAML::Syck ();
25	use Time::HiRes;	55	use Time::HiRes;
		56	use Compress::LZF;
		57	use Digest::MD5 ();
26		58
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	59	# configure various modules to our taste
		60	#
		61	$Storable::canonical = 1; # reduce rsync transfers
		62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		64
		65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
28		66
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		68
36	our %COMMAND = ();	69	our %COMMAND = ();
37	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
		71
		72	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
		75	our %EXT_CORO = (); # coroutines bound to extensions
		76	our %EXT_MAP = (); # pluggable maps
39		77
		78	our $RELOAD; # number of reloads so far
40	our @EVENT;	79	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		80
43	our $TICK = MAX_TIME * 1e-6;	81	our $CONFDIR = confdir;
		82	our $DATADIR = datadir;
		83	our $LIBDIR = "$DATADIR/ext";
		84	our $PODDIR = "$DATADIR/pod";
		85	our $MAPDIR = "$DATADIR/" . mapdir;
		86	our $LOCALDIR = localdir;
		87	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		88	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		89	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		90	our $RANDOMDIR = "$LOCALDIR/random";
		91	our $BDBDIR = "$LOCALDIR/db";
		92	our %RESOURCE;
		93
		94	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	97	our $NEXT_TICK;
46	our $NOW;	98	our $USE_FSYNC = 1; # use fsync to write maps - default off
		99
		100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
		104	our $DB_ENV;
47		105
48	our %CFG;	106	our %CFG;
49		107
50	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
52		111
53	our %PLAYER; # all users	112	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	113	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	114	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		115
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	116	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		118
		119	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		120	our $LOADAVG; # same thing, but with alpha-smoothing
		121	our $JITTER; # average jitter
		122	our $TICK_START; # for load detecting purposes
61		123
62	binmode STDOUT;	124	binmode STDOUT;
63	binmode STDERR;	125	binmode STDERR;
64		126
65	# read virtual server time, if available	127	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
70	}	132	}
71		133
72	mkdir cf::localdir;	134	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		136
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
		138
		139	sub cf::map::normalise;
81		140
82	#############################################################################	141	#############################################################################
83		142
84	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
85		144
…		…
92	=item $cf::RUNTIME	151	=item $cf::RUNTIME
93		152
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	153	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	154	every server tick.
96		155
97	=item $cf::LIBDIR	156	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		157	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		158	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		159
99	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	161	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		162	unique-items directory, player file directory, random maps directory and
		163	database environment.
101		164
102	=item $cf::NOW	165	=item $cf::NOW
103		166
104	The time of the last (current) server tick.	167	The time of the last (current) server tick.
105		168
106	=item $cf::TICK	169	=item $cf::TICK
107		170
108	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
109		172
		173	=item $cf::LOADAVG
		174
		175	The current CPU load on the server (alpha-smoothed), as a value between 0
		176	(none) and 1 (overloaded), indicating how much time is spent on processing
		177	objects per tick. Healthy values are < 0.5.
		178
		179	=item $cf::LOAD
		180
		181	The raw value load value from the last tick.
		182
110	=item %cf::CFG	183	=item %cf::CFG
111		184
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	186	from wherever your confdir points to.
114		187
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	188	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		189
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	191	returns directly I<after> the tick processing (and consequently, can only wake one process
119	processing has been done. Call C<< ->wait >> on them to maximise the	192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.	193
		194	=item @cf::INVOKE_RESULTS
		195
		196	This array contains the results of the last C<invoke ()> call. When
		197	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		198	that call.
121		199
122	=back	200	=back
123		201
124	=cut	202	=cut
125		203
126	BEGIN {	204	BEGIN {
127	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	206	my $msg = join "", @_;
129	utf8::encode $msg;
130		207
131	$msg .= "\n"	208	$msg .= "\n"
132	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
133		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
134	LOG llevError, $msg;	213	LOG llevError, $msg;
135	};	214	};
136	}	215	}
		216
		217	$Coro::State::DIEHOOK = sub {
		218	return unless $^S eq 0; # "eq", not "=="
		219
		220	if ($Coro::current == $Coro::main) {#d#
		221	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		222	return;#d#
		223	}#d#
		224
		225	# kill coroutine otherwise
		226	warn Carp::longmess $_[0];
		227	Coro::terminate
		228	};
		229
		230	$SIG{__DIE__} = sub { }; #d#?
137		231
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	236	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		237	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	238	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		239
145	# we bless all objects into (empty) derived classes to force a method lookup	240	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	241	# within the Safe compartment.
147	for my $pkg (qw(	242	for my $pkg (qw(
148	cf::global cf::attachable	243	cf::global cf::attachable
…		…
153	)) {	248	)) {
154	no strict 'refs';	249	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	251	}
157		252
158	$Event::DIED = sub {	253	$EV::DIED = sub {
159	warn "error in event callback: @_";	254	warn "error in event callback: @_";
160	};	255	};
161		256
162	my %ext_pkg;	257	#############################################################################
163	my @exts;
164	my @hook;
165		258
166	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
167		260
168	=over 4	261	=over 4
169		262
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	282	$d
190	} || "[unable to dump $_[0]: '$@']";	283	} || "[unable to dump $_[0]: '$@']";
191	}	284	}
192		285
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
196		287
197	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
198		289
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
207		291
208	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
209		293
210	=cut	294	=cut
211		295
212	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
214	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
215	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
216		300
217	=item cf::lock_wait $string	301	=item cf::lock_wait $string
218		302
219	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
220		304
…		…
223	Wait until the given lock is available and then acquires it and returns	307	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	308	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
226	returned.	310	returned.
227		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
228	Lock names should begin with a unique identifier (for example, cf::map::find	315	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
230		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
231	=cut	322	=cut
232		323
233	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
234		326
235	sub lock_wait($) {	327	sub lock_wait($) {
236	my ($key) = @_;	328	my ($key) = @_;
		329
		330	if ($LOCKER{$key} == $Coro::current) {#d#
		331	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		332	return;#d#
		333	}#d#
237		334
238	# wait for lock, if any	335	# wait for lock, if any
239	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	338	Coro::schedule;
…		…
247		344
248	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
249	lock_wait $key;	346	lock_wait $key;
250		347
251	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
252		350
253	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
256	}	355	}
257	}	356	}
258		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
259	sub freeze_mainloop {	364	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
261		366
262	my $guard = Coro::guard { $TICK_WATCHER->start };	367	Coro::guard \&tick_inhibit_dec;
263	$TICK_WATCHER->stop;	368	}
264	$guard	369
		370	=item cf::periodic $interval, $cb
		371
		372	Like EV::periodic, but randomly selects a starting point so that the actions
		373	get spread over timer.
		374
		375	=cut
		376
		377	sub periodic($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
		428	}
		429	};
		430
		431	sub get_slot($;$$) {
		432	return if tick_inhibit || $Coro::current == $Coro::main;
		433
		434	my ($time, $pri, $name) = @_;
		435
		436	$time = $TICK * .6 if $time > $TICK * .6;
		437	my $sig = new Coro::Signal;
		438
		439	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		440	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		441	$SLOT_QUEUE->ready;
		442	$sig->wait;
265	}	443	}
266		444
267	=item cf::async { BLOCK }	445	=item cf::async { BLOCK }
268		446
269	Currently the same as Coro::async_pool, meaning you cannot use	447	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		452
275	BEGIN { *async = \&Coro::async_pool }	453	BEGIN { *async = \&Coro::async_pool }
276		454
277	=item cf::sync_job { BLOCK }	455	=item cf::sync_job { BLOCK }
278		456
279	The design of crossfire+ requires that the main coro ($Coro::main) is	457	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	458	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	459	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		460	acceptable.
282		461
283	If it must be done, put the blocking parts into C<sync_job>. This will run	462	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	463	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	464	server will be frozen during this time, so the block should either finish
286	fast or be very important.	465	fast or be very important.
…		…
289		468
290	sub sync_job(&) {	469	sub sync_job(&) {
291	my ($job) = @_;	470	my ($job) = @_;
292		471
293	if ($Coro::current == $Coro::main) {	472	if ($Coro::current == $Coro::main) {
		473	my $time = EV::time;
		474
294	# this is the main coro, too bad, we have to block	475	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	476	# till the operation succeeds, freezing the server :/
296		477
297	# TODO: use suspend/resume instead	478	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	479
299	my $freeze_guard = freeze_mainloop;	480	my $freeze_guard = freeze_mainloop;
300		481
301	my $busy = 1;	482	my $busy = 1;
302	my @res;	483	my @res;
303		484
304	(async {	485	(async {
		486	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	487	@res = eval { $job->() };
306	warn $@ if $@;	488	warn $@ if $@;
307	undef $busy;	489	undef $busy;
308	})->prio (Coro::PRIO_MAX);	490	})->prio (Coro::PRIO_MAX);
309		491
310	while ($busy) {	492	while ($busy) {
311	Coro::cede or Event::one_event;	493	if (Coro::nready) {
		494	Coro::cede_notself;
		495	} else {
		496	EV::loop EV::LOOP_ONESHOT;
312	}	497	}
		498	}
		499
		500	my $time = EV::time - $time;
		501
		502	$TICK_START += $time; # do not account sync jobs to server load
313		503
314	wantarray ? @res : $res[0]	504	wantarray ? @res : $res[0]
315	} else {	505	} else {
316	# we are in another coroutine, how wonderful, everything just works	506	# we are in another coroutine, how wonderful, everything just works
317		507
…		…
319	}	509	}
320	}	510	}
321		511
322	=item $coro = cf::async_ext { BLOCK }	512	=item $coro = cf::async_ext { BLOCK }
323		513
324	Like async, but this coro is automcatially being canceled when the	514	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	515	extension calling this is being unloaded.
326		516
327	=cut	517	=cut
328		518
329	sub async_ext(&) {	519	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	527	$EXT_CORO{$coro+0} = $coro;
338		528
339	$coro	529	$coro
340	}	530	}
341		531
342	sub write_runtime {	532	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		533
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	534	Executes the given code block with the given arguments in a seperate
346	or return;	535	process, returning the results. Everything must be serialisable with
		536	Coro::Storable. May, of course, block. Note that the executed sub may
		537	never block itself or use any form of event handling.
347		538
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	539	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		540
352	aio_fsync $fh	541	sub fork_call(&@) {
353	and return;	542	my ($cb, @args) = @_;
354		543
355	close $fh	544	# we seemingly have to make a local copy of the whole thing,
356	or return;	545	# otherwise perl prematurely frees the stuff :/
		546	# TODO: investigate and fix (likely this will be rather laborious)
357		547
358	aio_rename "$runtime~", $runtime	548	my @res = Coro::Util::fork_eval {
359	and return;	549	reset_signals;
		550	&$cb
		551	}, @args;
360		552
		553	wantarray ? @res : $res[-1]
		554	}
		555
		556	=item $coin = coin_from_name $name
		557
		558	=cut
		559
		560	our %coin_alias = (
		561	"silver" => "silvercoin",
		562	"silvercoin" => "silvercoin",
		563	"silvercoins" => "silvercoin",
		564	"gold" => "goldcoin",
		565	"goldcoin" => "goldcoin",
		566	"goldcoins" => "goldcoin",
		567	"platinum" => "platinacoin",
		568	"platinumcoin" => "platinacoin",
		569	"platinumcoins" => "platinacoin",
		570	"platina" => "platinacoin",
		571	"platinacoin" => "platinacoin",
		572	"platinacoins" => "platinacoin",
		573	"royalty" => "royalty",
		574	"royalties" => "royalty",
		575	);
		576
		577	sub coin_from_name($) {
		578	$coin_alias{$_[0]}
		579	? cf::arch::find $coin_alias{$_[0]}
		580	: undef
		581	}
		582
		583	=item $value = cf::db_get $family => $key
		584
		585	Returns a single value from the environment database.
		586
		587	=item cf::db_put $family => $key => $value
		588
		589	Stores the given C<$value> in the family. It can currently store binary
		590	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		591
		592	=item $db = cf::db_table "name"
		593
		594	Create and/or open a new database table. The string must not be "db" and must be unique
		595	within each server.
		596
		597	=cut
		598
		599	sub db_table($) {
		600	my ($name) = @_;
		601	my $db = BDB::db_create $DB_ENV;
		602
		603	eval {
		604	$db->set_flags (BDB::CHKSUM);
		605
		606	utf8::encode $name;
		607	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		608	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		609	cf::cleanup "db_open(db): $!" if $!;
		610	};
		611	cf::cleanup "db_open(db): $@" if $@;
		612
		613	$db
		614	}
		615
		616	our $DB;
		617
		618	sub db_init {
		619	cf::sync_job {
		620	$DB ||= db_table "db";
		621	};
		622	}
		623
		624	sub db_get($$) {
		625	my $key = "$_[0]/$_[1]";
		626
		627	cf::sync_job {
		628	BDB::db_get $DB, undef, $key, my $data;
		629
		630	$! ? ()
		631	: $data
361	1	632	}
		633	}
		634
		635	sub db_put($$$) {
		636	BDB::dbreq_pri 4;
		637	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		638	}
		639
		640	=item cf::cache $id => [$paths...], $processversion => $process
		641
		642	Generic caching function that returns the value of the resource $id,
		643	caching and regenerating as required.
		644
		645	This function can block.
		646
		647	=cut
		648
		649	sub cache {
		650	my ($id, $src, $processversion, $process) = @_;
		651
		652	my $meta =
		653	join "\x00",
		654	$processversion,
		655	map {
		656	aio_stat $_
		657	and Carp::croak "$_: $!";
		658
		659	($_, (stat _)[7,9])
		660	} @$src;
		661
		662	my $dbmeta = db_get cache => "$id/meta";
		663	if ($dbmeta ne $meta) {
		664	# changed, we may need to process
		665
		666	my @data;
		667	my $md5;
		668
		669	for (0 .. $#$src) {
		670	0 <= aio_load $src->[$_], $data[$_]
		671	or Carp::croak "$src->[$_]: $!";
		672	}
		673
		674	# if processing is expensive, check
		675	# checksum first
		676	if (1) {
		677	$md5 =
		678	join "\x00",
		679	$processversion,
		680	map {
		681	cf::cede_to_tick;
		682	($src->[$_], Digest::MD5::md5_hex $data[$_])
		683	} 0.. $#$src;
		684
		685
		686	my $dbmd5 = db_get cache => "$id/md5";
		687	if ($dbmd5 eq $md5) {
		688	db_put cache => "$id/meta", $meta;
		689
		690	return db_get cache => "$id/data";
		691	}
		692	}
		693
		694	my $t1 = Time::HiRes::time;
		695	my $data = $process->(\@data);
		696	my $t2 = Time::HiRes::time;
		697
		698	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		699
		700	db_put cache => "$id/data", $data;
		701	db_put cache => "$id/md5" , $md5;
		702	db_put cache => "$id/meta", $meta;
		703
		704	return $data;
		705	}
		706
		707	db_get cache => "$id/data"
		708	}
		709
		710	=item cf::datalog type => key => value, ...
		711
		712	Log a datalog packet of the given type with the given key-value pairs.
		713
		714	=cut
		715
		716	sub datalog($@) {
		717	my ($type, %kv) = @_;
		718	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	719	}
363		720
364	=back	721	=back
365		722
366	=cut	723	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		724
490	#############################################################################	725	#############################################################################
491		726
492	=head2 ATTACHABLE OBJECTS	727	=head2 ATTACHABLE OBJECTS
493		728
…		…
495	attach callbacks/event handlers (a collection of which is called an "attachment")	730	attach callbacks/event handlers (a collection of which is called an "attachment")
496	to it. All such attachable objects support the following methods.	731	to it. All such attachable objects support the following methods.
497		732
498	In the following description, CLASS can be any of C<global>, C<object>	733	In the following description, CLASS can be any of C<global>, C<object>
499	C<player>, C<client> or C<map> (i.e. the attachable objects in	734	C<player>, C<client> or C<map> (i.e. the attachable objects in
500	crossfire+).	735	Deliantra).
501		736
502	=over 4	737	=over 4
503		738
504	=item $attachable->attach ($attachment, key => $value...)	739	=item $attachable->attach ($attachment, key => $value...)
505		740
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	854	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	855	our @CB_MAP = ();
621		856
622	my %attachment;	857	my %attachment;
623		858
		859	sub cf::attachable::thawer_merge {
		860	# simply override everything except _meta
		861	local $_[0]{_meta};
		862	%{$_[0]} = %{$_[1]};
		863	}
		864
624	sub _attach_cb($$$$) {	865	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	866	my ($registry, $event, $prio, $cb) = @_;
626		867
627	use sort 'stable';	868	use sort 'stable';
628		869
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	903	$registry = $CB_TYPE[$object_type] ||= [];
663		904
664	} elsif ($type eq "subtype") {	905	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	906	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	907	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	908	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		909
669	} elsif ($type eq "package") {	910	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	911	my $pkg = shift @arg;
671		912
672	while (my ($name, $id) = each %cb_id) {	913	while (my ($name, $id) = each %cb_id) {
…		…
701	_attach $registry, $klass, @attach;	942	_attach $registry, $klass, @attach;
702	}	943	}
703		944
704	$obj->{$name} = \%arg;	945	$obj->{$name} = \%arg;
705	} else {	946	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	947	warn "object uses attachment '$name' which is not available, postponing.\n";
707	}	948	}
708		949
709	$obj->{_attachment}{$name} = undef;	950	$obj->{_attachment}{$name} = undef;
710	}	951	}
711		952
…		…
713	if (ref $_[0]) {	954	if (ref $_[0]) {
714	_object_attach @_;	955	_object_attach @_;
715	} else {	956	} else {
716	_attach shift->_attach_registry, @_;	957	_attach shift->_attach_registry, @_;
717	}	958	}
		959	_recalc_want;
718	};	960	};
719		961
720	# all those should be optimised	962	# all those should be optimised
721	sub cf::attachable::detach {	963	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	964	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	967	delete $obj->{_attachment}{$name};
726	reattach ($obj);	968	reattach ($obj);
727	} else {	969	} else {
728	Carp::croak "cannot, currently, detach class attachments";	970	Carp::croak "cannot, currently, detach class attachments";
729	}	971	}
		972	_recalc_want;
730	};	973	};
731		974
732	sub cf::attachable::attached {	975	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	976	my ($obj, $name) = @_;
734		977
…		…
749	";	992	";
750	die if $@;	993	die if $@;
751	}	994	}
752		995
753	our $override;	996	our $override;
754	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	997	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
755		998
756	sub override {	999	sub override {
757	$override = 1;	1000	$override = 1;
758	@invoke_results = ();	1001	@INVOKE_RESULTS = (@_);
759	}	1002	}
760		1003
761	sub do_invoke {	1004	sub do_invoke {
762	my $event = shift;	1005	my $event = shift;
763	my $callbacks = shift;	1006	my $callbacks = shift;
764		1007
765	@invoke_results = ();	1008	@INVOKE_RESULTS = ();
766		1009
767	local $override;	1010	local $override;
768		1011
769	for (@$callbacks) {	1012	for (@$callbacks) {
770	eval { &{$_->[1]} };	1013	eval { &{$_->[1]} };
…		…
779	}	1022	}
780		1023
781	0	1024	0
782	}	1025	}
783		1026
784	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
785		1028
786	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1029	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
787		1030
788	Generate an object-specific event with the given arguments.	1031	Generate an object-specific event with the given arguments.
789		1032
790	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1033	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
791	removed in future versions), and there is no public API to access override	1034	removed in future versions), and there is no public API to access override
792	results (if you must, access C<@cf::invoke_results> directly).	1035	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		1036
794	=back	1037	=back
795		1038
796	=cut	1039	=cut
797		1040
798	#############################################################################	1041	#############################################################################
799	# object support	1042	# object support
		1043
		1044	sub _object_equal($$);
		1045	sub _object_equal($$) {
		1046	my ($a, $b) = @_;
		1047
		1048	return 0 unless (ref $a) eq (ref $b);
		1049
		1050	if ("HASH" eq ref $a) {
		1051	my @ka = keys %$a;
		1052	my @kb = keys %$b;
		1053
		1054	return 0 if @ka != @kb;
		1055
		1056	for (0 .. $#ka) {
		1057	return 0 unless $ka[$_] eq $kb[$_];
		1058	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1059	}
		1060
		1061	} elsif ("ARRAY" eq ref $a) {
		1062
		1063	return 0 if @$a != @$b;
		1064
		1065	for (0 .. $#$a) {
		1066	return 0 unless _object_equal $a->[$_], $b->[$_];
		1067	}
		1068
		1069	} elsif ($a ne $b) {
		1070	return 0;
		1071	}
		1072
		1073	1
		1074	}
		1075
		1076	our $SLOW_MERGES;#d#
		1077	sub _can_merge {
		1078	my ($ob1, $ob2) = @_;
		1079
		1080	++$SLOW_MERGES;#d#
		1081
		1082	# we do the slow way here
		1083	return _object_equal $ob1, $ob2
		1084	}
800		1085
801	sub reattach {	1086	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	1087	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	1088	my ($obj) = @_;
		1089
		1090	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		1091
805	my $registry = $obj->registry;	1092	my $registry = $obj->registry;
806		1093
807	@$registry = ();	1094	@$registry = ();
808		1095
…		…
823	cf::attachable->attach (	1110	cf::attachable->attach (
824	prio => -1000000,	1111	prio => -1000000,
825	on_instantiate => sub {	1112	on_instantiate => sub {
826	my ($obj, $data) = @_;	1113	my ($obj, $data) = @_;
827		1114
828	$data = from_json $data;	1115	$data = decode_json $data;
829		1116
830	for (@$data) {	1117	for (@$data) {
831	my ($name, $args) = @$_;	1118	my ($name, $args) = @$_;
832		1119
833	$obj->attach ($name, %{$args || {} });	1120	$obj->attach ($name, %{$args || {} });
…		…
849	sub object_freezer_save {	1136	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1137	my ($filename, $rdata, $objs) = @_;
851		1138
852	sync_job {	1139	sync_job {
853	if (length $$rdata) {	1140	if (length $$rdata) {
		1141	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1142	warn sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1143	$decname, length $$rdata, scalar @$objs;
856		1144
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1145	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1146	aio_chmod $fh, SAVE_MODE;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1147	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	1148	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	1149	aio_close $fh;
862		1150
863	if (@$objs) {	1151	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1152	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	1153	aio_chmod $fh, SAVE_MODE;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1154	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1155	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	1157	aio_close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1158	aio_rename "$filename.pst~", "$filename.pst";
871	}	1159	}
872	} else {	1160	} else {
873	aio_unlink "$filename.pst";	1161	aio_unlink "$filename.pst";
874	}	1162	}
…		…
879	}	1167	}
880	} else {	1168	} else {
881	aio_unlink $filename;	1169	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1170	aio_unlink "$filename.pst";
883	}	1171	}
884	}	1172	};
885	}	1173	}
886		1174
887	sub object_freezer_as_string {	1175	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1176	my ($rdata, $objs) = @_;
889		1177
…		…
901	or return;	1189	or return;
902		1190
903	unless (aio_stat "$filename.pst") {	1191	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1192	(aio_load "$filename.pst", $av) >= 0
905	or return;	1193	or return;
		1194
906	$av = eval { (Storable::thaw $av)->{objs} };	1195	my $st = eval { Coro::Storable::thaw $av };
		1196	$av = $st->{objs};
907	}	1197	}
908		1198
		1199	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1200	warn sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1201	$decname, length $data, scalar @{$av || []};
		1202
911	return ($data, $av);	1203	($data, $av)
912	}	1204	}
		1205
		1206	=head2 COMMAND CALLBACKS
		1207
		1208	=over 4
		1209
		1210	=cut
913		1211
914	#############################################################################	1212	#############################################################################
915	# command handling &c	1213	# command handling &c
916		1214
917	=item cf::register_command $name => \&callback($ob,$args);	1215	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1228	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1229	}
932		1230
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1231	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1232
935	Register a callbackf ro execution when the client sends an extcmd packet.	1233	Register a callback for execution when the client sends an (synchronous)
		1234	extcmd packet. Ext commands will be processed in the order they are
		1235	received by the server, like other user commands. The first argument is
		1236	the logged-in player. Ext commands can only be processed after a player
		1237	has logged in successfully.
936		1238
937	If the callback returns something, it is sent back as if reply was being	1239	If the callback returns something, it is sent back as if reply was being
938	called.	1240	called.
939		1241
		1242	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1243
		1244	Register a callback for execution when the client sends an (asynchronous)
		1245	exticmd packet. Exti commands are processed by the server as soon as they
		1246	are received, i.e. out of order w.r.t. other commands. The first argument
		1247	is a client socket. Exti commands can be received anytime, even before
		1248	log-in.
		1249
		1250	If the callback returns something, it is sent back as if reply was being
		1251	called.
		1252
940	=cut	1253	=cut
941		1254
942	sub register_extcmd {	1255	sub register_extcmd {
943	my ($name, $cb) = @_;	1256	my ($name, $cb) = @_;
944		1257
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1258	$EXTCMD{$name} = $cb;
		1259	}
		1260
		1261	sub register_exticmd {
		1262	my ($name, $cb) = @_;
		1263
		1264	$EXTICMD{$name} = $cb;
949	}	1265	}
950		1266
951	cf::player->attach (	1267	cf::player->attach (
952	on_command => sub {	1268	on_command => sub {
953	my ($pl, $name, $params) = @_;	1269	my ($pl, $name, $params) = @_;
…		…
962	cf::override;	1278	cf::override;
963	},	1279	},
964	on_extcmd => sub {	1280	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1281	my ($pl, $buf) = @_;
966		1282
967	my $msg = eval { from_json $buf };	1283	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1284
969	if (ref $msg) {	1285	if (ref $msg) {
		1286	my ($type, $reply, @payload) =
		1287	"ARRAY" eq ref $msg
		1288	? @$msg
		1289	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1290
		1291	my @reply;
		1292
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1293	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1294	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1295	}
		1296
		1297	$pl->ext_reply ($reply, @reply)
		1298	if $reply;
		1299
975	} else {	1300	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1301	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1302	}
978		1303
979	cf::override;	1304	cf::override;
980	},	1305	},
981	);	1306	);
982		1307
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {
990	my ($path) = @_;
991
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;
994	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}
1058
1059	sub load_extensions {	1308	sub load_extensions {
		1309	cf::sync_job {
		1310	my %todo;
		1311
1060	for my $ext (<$LIBDIR/*.ext>) {	1312	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1313	next unless -r $path;
1062	eval {	1314
1063	load_extension $ext;	1315	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1316	my $base = $1;
		1317	my $pkg = $1;
		1318	$pkg =~ s/[^[:word:]]/_/g;
		1319	$pkg = "ext::$pkg";
		1320
		1321	open my $fh, "<:utf8", $path
		1322	or die "$path: $!";
		1323
		1324	my $source = do { local $/; <$fh> };
		1325
		1326	my %ext = (
		1327	path => $path,
		1328	base => $base,
		1329	pkg => $pkg,
		1330	);
		1331
		1332	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1333	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1334
		1335	$ext{source} =
		1336	"package $pkg; use strict; use utf8;\n"
		1337	. "#line 1 \"$path\"\n{\n"
		1338	. $source
		1339	. "\n};\n1";
		1340
		1341	$todo{$base} = \%ext;
		1342	}
		1343
		1344	my %done;
		1345	while (%todo) {
		1346	my $progress;
		1347
		1348	while (my ($k, $v) = each %todo) {
		1349	for (split /,\s*/, $v->{meta}{depends}) {
		1350	goto skip
		1351	unless exists $done{$_};
		1352	}
		1353
		1354	warn "... loading '$k' into '$v->{pkg}'\n";
		1355
		1356	unless (eval $v->{source}) {
		1357	my $msg = $@ ? "$v->{path}: $@\n"
		1358	: "$v->{base}: extension inactive.\n";
		1359
		1360	if (exists $v->{meta}{mandatory}) {
		1361	warn $msg;
		1362	cf::cleanup "mandatory extension failed to load, exiting.";
		1363	}
		1364
		1365	warn $msg;
		1366	}
		1367
		1368	$done{$k} = delete $todo{$k};
		1369	push @EXTS, $v->{pkg};
		1370	$progress = 1;
1064	1	1371	}
1065	} or warn "$ext not loaded: $@";	1372
		1373	skip:
		1374	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1375	unless $progress;
		1376	}
1066	}	1377	};
1067	}	1378	}
1068		1379
1069	#############################################################################	1380	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1381
1072	*cf::mapsupport::on_clean = sub {	1382	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1383
1085	=head2 CORE EXTENSIONS	1384	=head2 CORE EXTENSIONS
1086		1385
1087	Functions and methods that extend core crossfire objects.	1386	Functions and methods that extend core crossfire objects.
1088		1387
…		…
1094		1393
1095	=head3 cf::player	1394	=head3 cf::player
1096		1395
1097	=over 4	1396	=over 4
1098		1397
		1398	=item cf::player::num_playing
		1399
		1400	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1401
		1402	=cut
		1403
		1404	sub num_playing {
		1405	scalar grep
		1406	$_->ob->map
		1407	&& !$_->hidden
		1408	&& !$_->ob->flag (cf::FLAG_WIZ),
		1409	cf::player::list
		1410	}
		1411
1099	=item cf::player::find $login	1412	=item cf::player::find $login
1100		1413
1101	Returns the given player object, loading it if necessary (might block).	1414	Returns the given player object, loading it if necessary (might block).
1102		1415
1103	=cut	1416	=cut
1104		1417
1105	sub playerdir($) {	1418	sub playerdir($) {
1106	cf::localdir	1419	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1420	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1421	}
1112		1422
1113	sub path($) {	1423	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1424	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1425
1116	(playerdir $login) . "/$login.pl"	1426	(playerdir $login) . "/playerdata"
1117	}	1427	}
1118		1428
1119	sub find_active($) {	1429	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1430	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1431	and $cf::PLAYER{$_[0]}->active
…		…
1124		1434
1125	sub exists($) {	1435	sub exists($) {
1126	my ($login) = @_;	1436	my ($login) = @_;
1127		1437
1128	$cf::PLAYER{$login}	1438	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1439	or cf::sync_job { !aio_stat path $login }
1130	}	1440	}
1131		1441
1132	sub find($) {	1442	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1443	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1444	my $login = $_[0];
1135		1445
1136	my $guard = cf::lock_acquire "user_find:$login";	1446	my $guard = cf::lock_acquire "user_find:$login";
1137		1447
1138	$cf::PLAYER{$_[0]} || do {	1448	$cf::PLAYER{$_[0]} || do {
1139	my $pl = load_pl path $login	1449	# rename old playerfiles to new ones
		1450	#TODO: remove when no longer required
		1451	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1452	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1453	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1454	aio_unlink +(playerdir $login) . "/$login.pl";
		1455
		1456	my $f = new_from_file cf::object::thawer path $login
1140	or return;	1457	or return;
		1458
		1459	my $pl = cf::player::load_pl $f
		1460	or return;
		1461
		1462	local $cf::PLAYER_LOADING{$login} = $pl;
		1463	$f->resolve_delayed_derefs;
1141	$cf::PLAYER{$login} = $pl	1464	$cf::PLAYER{$login} = $pl
1142	}	1465	}
1143	}	1466	}
1144	}	1467	}
1145		1468
…		…
1154	return if $pl->{deny_save};	1477	return if $pl->{deny_save};
1155		1478
1156	aio_mkdir playerdir $pl, 0770;	1479	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1480	$pl->{last_save} = $cf::RUNTIME;
1158		1481
		1482	cf::get_slot 0.01;
		1483
1159	$pl->save_pl ($path);	1484	$pl->save_pl ($path);
1160	Coro::cede;	1485	cf::cede_to_tick;
1161	}	1486	}
1162		1487
1163	sub new($) {	1488	sub new($) {
1164	my ($login) = @_;	1489	my ($login) = @_;
1165		1490
…		…
1171	$cf::PLAYER{$login} = $self;	1496	$cf::PLAYER{$login} = $self;
1172		1497
1173	$self	1498	$self
1174	}	1499	}
1175		1500
		1501	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1502
		1503	=cut
		1504
		1505	sub send_msg {
		1506	my $ns = shift->ns
		1507	or return;
		1508	$ns->send_msg (@_);
		1509	}
		1510
1176	=item $pl->quit_character	1511	=item $pl->quit_character
1177		1512
1178	Nukes the player without looking back. If logged in, the connection will	1513	Nukes the player without looking back. If logged in, the connection will
1179	be destroyed. May block for a long time.	1514	be destroyed. May block for a long time.
1180		1515
1181	=cut	1516	=cut
1182		1517
1183	sub quit_character {	1518	sub quit_character {
1184	my ($pl) = @_;	1519	my ($pl) = @_;
		1520
		1521	my $name = $pl->ob->name;
1185		1522
1186	$pl->{deny_save} = 1;	1523	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1524	$pl->password ("*"); # this should lock out the player until we nuked the dir
1188		1525
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1526	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1531	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1532	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1533	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1534	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1535	$pl->destroy;
		1536
		1537	my $prefix = qr<^~\Q$name\E/>;
		1538
		1539	# nuke player maps
		1540	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1541
1199	IO::AIO::aio_rmtree $temp;	1542	IO::AIO::aio_rmtree $temp;
		1543	}
		1544
		1545	=item $pl->kick
		1546
		1547	Kicks a player out of the game. This destroys the connection.
		1548
		1549	=cut
		1550
		1551	sub kick {
		1552	my ($pl, $kicker) = @_;
		1553
		1554	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1555	$pl->killer ("kicked");
		1556	$pl->ns->destroy;
1200	}	1557	}
1201		1558
1202	=item cf::player::list_logins	1559	=item cf::player::list_logins
1203		1560
1204	Returns am arrayref of all valid playernames in the system, can take a	1561	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1562	while and may block, so not sync_job-capable, ever.
1206		1563
1207	=cut	1564	=cut
1208		1565
1209	sub list_logins {	1566	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1567	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1568	or return [];
1212		1569
1213	my @logins;	1570	my @logins;
1214		1571
1215	for my $login (@$dirs) {	1572	for my $login (@$dirs) {
		1573	my $path = path $login;
		1574
		1575	# a .pst is a dead give-away for a valid player
		1576	# if no pst file found, open and chekc for blocked users
		1577	if (aio_stat "$path.pst") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1578	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1579	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1580	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1581	}
1219		1582
1220	utf8::decode $login;	1583	utf8::decode $login;
1221	push @logins, $login;	1584	push @logins, $login;
1222	}	1585	}
1223		1586
1224	\@logins	1587	\@logins
1225	}	1588	}
1226		1589
1227	=item $player->maps	1590	=item $player->maps
1228		1591
1229	Returns an arrayref of cf::path's of all maps that are private for this	1592	Returns an arrayref of map paths that are private for this
1230	player. May block.	1593	player. May block.
1231		1594
1232	=cut	1595	=cut
1233		1596
1234	sub maps($) {	1597	sub maps($) {
1235	my ($pl) = @_;	1598	my ($pl) = @_;
		1599
		1600	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1601
1237	my $files = aio_readdir playerdir $pl	1602	my $files = aio_readdir playerdir $pl
1238	or return;	1603	or return;
1239		1604
1240	my @paths;	1605	my @paths;
1241		1606
1242	for (@$files) {	1607	for (@$files) {
1243	utf8::decode $_;	1608	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1609	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1610	next unless /^$PATH_SEP/o;
1246		1611
1247	s/$PATH_SEP/\//g;	1612	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1613	}
1250		1614
1251	\@paths	1615	\@paths
1252	}	1616	}
1253		1617
		1618	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1619
		1620	Expand crossfire pod fragments into protocol xml.
		1621
		1622	=cut
		1623
		1624	use re 'eval';
		1625
		1626	my $group;
		1627	my $interior; $interior = qr{
		1628	# match a pod interior sequence sans C<< >>
		1629	(?:
		1630	\ (.*?)\ (?{ $group = $^N })
		1631	| < (??{$interior}) >
		1632	)
		1633	}x;
		1634
		1635	sub expand_cfpod {
		1636	my ($self, $pod) = @_;
		1637
		1638	my $xml;
		1639
		1640	while () {
		1641	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1642	$group = $1;
		1643
		1644	$group =~ s/&/&amp;/g;
		1645	$group =~ s/</&lt;/g;
		1646
		1647	$xml .= $group;
		1648	} elsif ($pod =~ m%\G
		1649	([BCGHITU])
		1650	<
		1651	(?:
		1652	([^<>]*) (?{ $group = $^N })
		1653	| < $interior >
		1654	)
		1655	>
		1656	%gcsx
		1657	) {
		1658	my ($code, $data) = ($1, $group);
		1659
		1660	if ($code eq "B") {
		1661	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1662	} elsif ($code eq "I") {
		1663	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1664	} elsif ($code eq "U") {
		1665	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1666	} elsif ($code eq "C") {
		1667	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1668	} elsif ($code eq "T") {
		1669	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1670	} elsif ($code eq "G") {
		1671	my ($male, $female) = split /\|/, $data;
		1672	$data = $self->gender ? $female : $male;
		1673	$xml .= expand_cfpod ($self, $data);
		1674	} elsif ($code eq "H") {
		1675	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1676	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1677	"")
		1678	[$self->{hintmode}];
		1679	} else {
		1680	$xml .= "error processing '$code($data)' directive";
		1681	}
		1682	} else {
		1683	if ($pod =~ /\G(.+)/) {
		1684	warn "parse error while expanding $pod (at $1)";
		1685	}
		1686	last;
		1687	}
		1688	}
		1689
		1690	for ($xml) {
		1691	# create single paragraphs (very hackish)
		1692	s/(?<=\S)\n(?=\w)/ /g;
		1693
		1694	# compress some whitespace
		1695	s/\s+\n/\n/g; # ws line-ends
		1696	s/\n\n+/\n/g; # double lines
		1697	s/^\n+//; # beginning lines
		1698	s/\n+$//; # ending lines
		1699	}
		1700
		1701	$xml
		1702	}
		1703
		1704	no re 'eval';
		1705
		1706	sub hintmode {
		1707	$_[0]{hintmode} = $_[1] if @_ > 1;
		1708	$_[0]{hintmode}
		1709	}
		1710
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1711	=item $player->ext_reply ($msgid, @msg)
1255		1712
1256	Sends an ext reply to the player.	1713	Sends an ext reply to the player.
1257		1714
1258	=cut	1715	=cut
1259		1716
1260	sub ext_reply($$$%) {	1717	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1718	my ($self, $id, @msg) = @_;
1262		1719
1263	$msg{msgid} = $id;	1720	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1721	}
1267		1722
1268	package cf;	1723	=item $player->ext_msg ($type, @msg)
		1724
		1725	Sends an ext event to the client.
		1726
		1727	=cut
		1728
		1729	sub ext_msg($$@) {
		1730	my ($self, $type, @msg) = @_;
		1731
		1732	$self->ns->ext_msg ($type, @msg);
		1733	}
		1734
		1735	=head3 cf::region
		1736
		1737	=over 4
		1738
		1739	=cut
		1740
		1741	package cf::region;
		1742
		1743	=item cf::region::find_by_path $path
		1744
		1745	Tries to decuce the likely region for a map knowing only its path.
		1746
		1747	=cut
		1748
		1749	sub find_by_path($) {
		1750	my ($path) = @_;
		1751
		1752	my ($match, $specificity);
		1753
		1754	for my $region (list) {
		1755	if ($region->{match} && $path =~ $region->{match}) {
		1756	($match, $specificity) = ($region, $region->specificity)
		1757	if $region->specificity > $specificity;
		1758	}
		1759	}
		1760
		1761	$match
		1762	}
1269		1763
1270	=back	1764	=back
1271
1272		1765
1273	=head3 cf::map	1766	=head3 cf::map
1274		1767
1275	=over 4	1768	=over 4
1276		1769
…		…
1279	package cf::map;	1772	package cf::map;
1280		1773
1281	use Fcntl;	1774	use Fcntl;
1282	use Coro::AIO;	1775	use Coro::AIO;
1283		1776
		1777	use overload
		1778	'""' => \&as_string,
		1779	fallback => 1;
		1780
1284	our $MAX_RESET = 3600;	1781	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1782	our $DEFAULT_RESET = 3000;
1286		1783
1287	sub generate_random_map {	1784	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1785	my ($self, $rmp) = @_;
		1786
		1787	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1289		1788
1290	# mit "rum" bekleckern, nicht	1789	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1790	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1791	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1792	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1793	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1794	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1795	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1796	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1797	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1798	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1799	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1800	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})	1801	(cf::region::find $rmp->{region}), $rmp->{custom}
		1802	)
		1803	}
		1804
		1805	=item cf::map->register ($regex, $prio)
		1806
		1807	Register a handler for the map path matching the given regex at the
		1808	givne priority (higher is better, built-in handlers have priority 0, the
		1809	default).
		1810
		1811	=cut
		1812
		1813	sub register {
		1814	my (undef, $regex, $prio) = @_;
		1815	my $pkg = caller;
		1816
		1817	no strict;
		1818	push @{"$pkg\::ISA"}, __PACKAGE__;
		1819
		1820	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1821	}
		1822
		1823	# also paths starting with '/'
		1824	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1825
		1826	sub thawer_merge {
		1827	my ($self, $merge) = @_;
		1828
		1829	# we have to keep some variables in memory intact
		1830	local $self->{path};
		1831	local $self->{load_path};
		1832
		1833	$self->SUPER::thawer_merge ($merge);
		1834	}
		1835
		1836	sub normalise {
		1837	my ($path, $base) = @_;
		1838
		1839	$path = "$path"; # make sure its a string
		1840
		1841	$path =~ s/\.map$//;
		1842
		1843	# map plan:
		1844	#
		1845	# /! non-realised random map exit (special hack!)
		1846	# {... are special paths that are not being touched
		1847	# ?xxx/... are special absolute paths
		1848	# ?random/... random maps
		1849	# /... normal maps
		1850	# ~user/... per-player map of a specific user
		1851
		1852	$path =~ s/$PATH_SEP/\//go;
		1853
		1854	# treat it as relative path if it starts with
		1855	# something that looks reasonable
		1856	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1857	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1858
		1859	$base =~ s{[^/]+/?$}{};
		1860	$path = "$base/$path";
		1861	}
		1862
		1863	for ($path) {
		1864	redo if s{//}{/};
		1865	redo if s{/\.?/}{/};
		1866	redo if s{/[^/]+/\.\./}{/};
		1867	}
		1868
		1869	$path
		1870	}
		1871
		1872	sub new_from_path {
		1873	my (undef, $path, $base) = @_;
		1874
		1875	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1876
		1877	$path = normalise $path, $base;
		1878
		1879	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1880	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1881	my $self = bless cf::map::new, $pkg;
		1882	$self->{path} = $path; $self->path ($path);
		1883	$self->init; # pass $1 etc.
		1884	return $self;
		1885	}
		1886	}
		1887
		1888	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1889	()
		1890	}
		1891
		1892	sub init {
		1893	my ($self) = @_;
		1894
		1895	$self
		1896	}
		1897
		1898	sub as_string {
		1899	my ($self) = @_;
		1900
		1901	"$self->{path}"
		1902	}
		1903
		1904	# the displayed name, this is a one way mapping
		1905	sub visible_name {
		1906	&as_string
		1907	}
		1908
		1909	# the original (read-only) location
		1910	sub load_path {
		1911	my ($self) = @_;
		1912
		1913	"$MAPDIR/$self->{path}.map"
		1914	}
		1915
		1916	# the temporary/swap location
		1917	sub save_path {
		1918	my ($self) = @_;
		1919
		1920	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1921	"$TMPDIR/$path.map"
		1922	}
		1923
		1924	# the unique path, undef == no special unique path
		1925	sub uniq_path {
		1926	my ($self) = @_;
		1927
		1928	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1929	"$UNIQUEDIR/$path"
1304	}	1930	}
1305		1931
1306	# and all this just because we cannot iterate over	1932	# and all this just because we cannot iterate over
1307	# all maps in C++...	1933	# all maps in C++...
1308	sub change_all_map_light {	1934	sub change_all_map_light {
…		…
1310		1936
1311	$_->change_map_light ($change)	1937	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1938	for grep $_->outdoor, values %cf::MAP;
1313	}	1939	}
1314		1940
		1941	sub decay_objects {
		1942	my ($self) = @_;
		1943
		1944	return if $self->{deny_reset};
		1945
		1946	$self->do_decay_objects;
		1947	}
		1948
		1949	sub unlink_save {
		1950	my ($self) = @_;
		1951
		1952	utf8::encode (my $save = $self->save_path);
		1953	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1954	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1955	}
		1956
1315	sub try_load_header($) {	1957	sub load_header_from($) {
1316	my ($path) = @_;	1958	my ($self, $path) = @_;
1317		1959
1318	utf8::encode $path;	1960	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1961	my $f = new_from_file cf::object::thawer $path
1320	or return;	1962	or return;
1321		1963
1322	my $map = cf::map::new	1964	$self->_load_header ($f)
1323	or return;	1965	or return;
1324		1966
1325	# for better error messages only, will be overwritten	1967	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	1968	$f->resolve_delayed_derefs;
1327		1969
1328	$map->load_header ($path)	1970	$self->{load_path} = $path;
		1971
		1972	1
		1973	}
		1974
		1975	sub load_header_orig {
		1976	my ($self) = @_;
		1977
		1978	$self->load_header_from ($self->load_path)
		1979	}
		1980
		1981	sub load_header_temp {
		1982	my ($self) = @_;
		1983
		1984	$self->load_header_from ($self->save_path)
		1985	}
		1986
		1987	sub prepare_temp {
		1988	my ($self) = @_;
		1989
		1990	$self->last_access ((delete $self->{last_access})
		1991	|| $cf::RUNTIME); #d#
		1992	# safety
		1993	$self->{instantiate_time} = $cf::RUNTIME
		1994	if $self->{instantiate_time} > $cf::RUNTIME;
		1995	}
		1996
		1997	sub prepare_orig {
		1998	my ($self) = @_;
		1999
		2000	$self->{load_original} = 1;
		2001	$self->{instantiate_time} = $cf::RUNTIME;
		2002	$self->last_access ($cf::RUNTIME);
		2003	$self->instantiate;
		2004	}
		2005
		2006	sub load_header {
		2007	my ($self) = @_;
		2008
		2009	if ($self->load_header_temp) {
		2010	$self->prepare_temp;
		2011	} else {
		2012	$self->load_header_orig
1329	or return;	2013	or return;
		2014	$self->prepare_orig;
		2015	}
1330		2016
1331	$map->{load_path} = $path;	2017	$self->{deny_reset} = 1
		2018	if $self->no_reset;
1332		2019
1333	$map	2020	$self->default_region (cf::region::find_by_path $self->{path})
		2021	unless $self->default_region;
		2022
		2023	1
1334	}	2024	}
1335		2025
1336	sub find;	2026	sub find;
1337	sub find {	2027	sub find {
1338	my ($path, $origin) = @_;	2028	my ($path, $origin) = @_;
1339		2029
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	2030	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		2031
		2032	cf::lock_wait "map_data:$path";#d#remove
1345	cf::lock_wait "map_find:$key";	2033	cf::lock_wait "map_find:$path";
1346		2034
1347	$cf::MAP{$key} || do {	2035	$cf::MAP{$path} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	2036	my $guard1 = cf::lock_acquire "map_find:$path";
		2037	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1349		2038
1350	# do it the slow way	2039	my $map = new_from_path cf::map $path
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	2040	or return;
1369		2041
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	2042	$map->{last_save} = $cf::RUNTIME;
1382		2043
1383	Coro::cede;	2044	$map->load_header
		2045	or return;
1384		2046
1385	if ($map->should_reset) {	2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2048	# doing this can freeze the server in a sync job, obviously
		2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard1;
		2051	undef $guard2;
1386	$map->reset;	2052	$map->reset;
1387	undef $guard;
1388	$map = find $path	2053	return find $path;
1389	or return;
1390	}	2054	}
1391		2055
1392	$cf::MAP{$key} = $map	2056	$cf::MAP{$path} = $map
1393	}	2057	}
1394	}	2058	}
		2059
		2060	sub pre_load { }
		2061	sub post_load { }
1395		2062
1396	sub load {	2063	sub load {
1397	my ($self) = @_;	2064	my ($self) = @_;
1398		2065
		2066	local $self->{deny_reset} = 1; # loading can take a long time
		2067
1399	my $path = $self->{path};	2068	my $path = $self->{path};
		2069
		2070	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2071	my $guard = cf::lock_acquire "map_data:$path";
1401		2072
		2073	return unless $self->valid;
1402	return if $self->in_memory != cf::MAP_SWAPPED;	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
1403		2075
1404	$self->in_memory (cf::MAP_LOADING);	2076	$self->in_memory (cf::MAP_LOADING);
1405		2077
1406	$self->alloc;	2078	$self->alloc;
1407	$self->load_objects ($self->{load_path}, 1)	2079
		2080	$self->pre_load;
		2081	cf::cede_to_tick;
		2082
		2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
		2085	$self->_load_objects ($f)
1408	or return;	2086	or return;
1409		2087
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2088	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	2089	if delete $self->{load_original};
1412		2090
1413	if (my $uniq = $path->uniq_path) {	2091	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	2092	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	2095	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
1418	}	2099	}
1419	}	2100	}
1420		2101
1421	Coro::cede;	2102	$f->resolve_delayed_derefs;
1422		2103
		2104	cf::cede_to_tick;
1423	# now do the right thing for maps	2105	# now do the right thing for maps
1424	$self->link_multipart_objects;	2106	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	2107	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	2108	unless $self->difficulty;
		2109	cf::cede_to_tick;
		2110
		2111	unless ($self->{deny_activate}) {
		2112	$self->decay_objects;
		2113	$self->fix_auto_apply;
		2114	$self->update_buttons;
		2115	cf::cede_to_tick;
		2116	$self->set_darkness_map;
		2117	cf::cede_to_tick;
1436	$self->activate;	2118	$self->activate;
1437	}	2119	}
1438		2120
1439	Coro::cede;	2121	$self->{last_save} = $cf::RUNTIME;
		2122	$self->last_access ($cf::RUNTIME);
1440		2123
1441	$self->in_memory (cf::MAP_IN_MEMORY);	2124	$self->in_memory (cf::MAP_ACTIVE);
		2125	}
		2126
		2127	$self->post_load;
		2128	}
		2129
		2130	sub customise_for {
		2131	my ($self, $ob) = @_;
		2132
		2133	return find "~" . $ob->name . "/" . $self->{path}
		2134	if $self->per_player;
		2135
		2136	# return find "?party/" . $ob->name . "/" . $self->{path}
		2137	# if $self->per_party;
		2138
		2139	$self
		2140	}
		2141
		2142	# find and load all maps in the 3x3 area around a map
		2143	sub load_neighbours {
		2144	my ($map) = @_;
		2145
		2146	my @neigh; # diagonal neighbours
		2147
		2148	for (0 .. 3) {
		2149	my $neigh = $map->tile_path ($_)
		2150	or next;
		2151	$neigh = find $neigh, $map
		2152	or next;
		2153	$neigh->load;
		2154
		2155	push @neigh,
		2156	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2157	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2158	}
		2159
		2160	for (grep defined $_->[0], @neigh) {
		2161	my ($path, $origin) = @$_;
		2162	my $neigh = find $path, $origin
		2163	or next;
		2164	$neigh->load;
		2165	}
1442	}	2166	}
1443		2167
1444	sub find_sync {	2168	sub find_sync {
1445	my ($path, $origin) = @_;	2169	my ($path, $origin) = @_;
1446		2170
1447	cf::sync_job { cf::map::find $path, $origin }	2171	cf::sync_job { find $path, $origin }
1448	}	2172	}
1449		2173
1450	sub do_load_sync {	2174	sub do_load_sync {
1451	my ($map) = @_;	2175	my ($map) = @_;
1452		2176
		2177	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2178	if $Coro::current == $Coro::main;
		2179
1453	cf::sync_job { $map->load };	2180	cf::sync_job { $map->load };
		2181	}
		2182
		2183	our %MAP_PREFETCH;
		2184	our $MAP_PREFETCHER = undef;
		2185
		2186	sub find_async {
		2187	my ($path, $origin, $load) = @_;
		2188
		2189	$path = normalise $path, $origin && $origin->{path};
		2190
		2191	if (my $map = $cf::MAP{$path}) {
		2192	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2193	}
		2194
		2195	$MAP_PREFETCH{$path} |= $load;
		2196
		2197	$MAP_PREFETCHER ||= cf::async {
		2198	$Coro::current->{desc} = "map prefetcher";
		2199
		2200	while (%MAP_PREFETCH) {
		2201	while (my ($k, $v) = each %MAP_PREFETCH) {
		2202	if (my $map = find $k) {
		2203	$map->load if $v;
		2204	}
		2205
		2206	delete $MAP_PREFETCH{$k};
		2207	}
		2208	}
		2209	undef $MAP_PREFETCHER;
		2210	};
		2211	$MAP_PREFETCHER->prio (6);
		2212
		2213	()
1454	}	2214	}
1455		2215
1456	sub save {	2216	sub save {
1457	my ($self) = @_;	2217	my ($self) = @_;
1458		2218
1459	my $lock = cf::lock_acquire "map_data:" . $self->path;	2219	my $lock = cf::lock_acquire "map_data:$self->{path}";
1460		2220
1461	$self->{last_save} = $cf::RUNTIME;	2221	$self->{last_save} = $cf::RUNTIME;
1462		2222
1463	return unless $self->dirty;	2223	return unless $self->dirty;
1464		2224
1465	my $save = $self->{path}->save_path; utf8::encode $save;	2225	my $save = $self->save_path; utf8::encode $save;
1466	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2226	my $uniq = $self->uniq_path; utf8::encode $uniq;
1467		2227
1468	$self->{load_path} = $save;	2228	$self->{load_path} = $save;
1469		2229
1470	return if $self->{deny_save};	2230	return if $self->{deny_save};
1471		2231
1472	local $self->{last_access} = $self->last_access;#d#	2232	local $self->{last_access} = $self->last_access;#d#
1473		2233
1474	cf::async {	2234	cf::async {
		2235	$Coro::current->{desc} = "map player save";
1475	$_->contr->save for $self->players;	2236	$_->contr->save for $self->players;
1476	};	2237	};
1477		2238
		2239	cf::get_slot 0.02;
		2240
1478	if ($uniq) {	2241	if ($uniq) {
1479	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2242	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480	$self->save_objects ($uniq, cf::IO_UNIQUES);	2243	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1481	} else {	2244	} else {
1482	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1483	}	2246	}
1484	}	2247	}
1485		2248
1486	sub swap_out {	2249	sub swap_out {
1487	my ($self) = @_;	2250	my ($self) = @_;
1488		2251
1489	# save first because save cedes	2252	# save first because save cedes
1490	$self->save;	2253	$self->save;
1491		2254
1492	my $lock = cf::lock_acquire "map_data:" . $self->path;	2255	my $lock = cf::lock_acquire "map_data:$self->{path}";
1493		2256
1494	return if $self->players;	2257	return if $self->players;
1495	return if $self->in_memory != cf::MAP_IN_MEMORY;	2258	return if $self->in_memory != cf::MAP_ACTIVE;
1496	return if $self->{deny_save};	2259	return if $self->{deny_save};
1497		2260
		2261	$self->in_memory (cf::MAP_SWAPPED);
		2262
		2263	$self->deactivate;
		2264	$_->clear_links_to ($self) for values %cf::MAP;
1498	$self->clear;	2265	$self->clear;
1499	$self->in_memory (cf::MAP_SWAPPED);
1500	}	2266	}
1501		2267
1502	sub reset_at {	2268	sub reset_at {
1503	my ($self) = @_;	2269	my ($self) = @_;
1504		2270
1505	# TODO: safety, remove and allow resettable per-player maps	2271	# TODO: safety, remove and allow resettable per-player maps
1506	return 1e99 if $self->{path}{user_rel};
1507	return 1e99 if $self->{deny_reset};	2272	return 1e99 if $self->{deny_reset};
1508		2273
1509	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2274	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1510	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2275	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1511		2276
…		…
1516	my ($self) = @_;	2281	my ($self) = @_;
1517		2282
1518	$self->reset_at <= $cf::RUNTIME	2283	$self->reset_at <= $cf::RUNTIME
1519	}	2284	}
1520		2285
1521	sub unlink_save {
1522	my ($self) = @_;
1523
1524	utf8::encode (my $save = $self->{path}->save_path);
1525	aioreq_pri 3; IO::AIO::aio_unlink $save;
1526	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1527	}
1528
1529	sub rename {
1530	my ($self, $new_path) = @_;
1531
1532	$self->unlink_save;
1533
1534	delete $cf::MAP{$self->path};
1535	$self->{path} = new cf::path $new_path;
1536	$self->path ($self->{path}->as_string);
1537	$cf::MAP{$self->path} = $self;
1538
1539	$self->save;
1540	}
1541
1542	sub reset {	2286	sub reset {
1543	my ($self) = @_;	2287	my ($self) = @_;
1544		2288
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		2290
1547	return if $self->players;	2291	return if $self->players;
1548	return if $self->{path}{user_rel};#d#
1549		2292
1550	warn "resetting map ", $self->path;#d#	2293	warn "resetting map ", $self->path;
		2294
		2295	$self->in_memory (cf::MAP_SWAPPED);
		2296
		2297	# need to save uniques path
		2298	unless ($self->{deny_save}) {
		2299	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2300
		2301	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2302	if $uniq;
		2303	}
1551		2304
1552	delete $cf::MAP{$self->path};	2305	delete $cf::MAP{$self->path};
1553		2306
		2307	$self->deactivate;
1554	$_->clear_links_to ($self) for values %cf::MAP;	2308	$_->clear_links_to ($self) for values %cf::MAP;
		2309	$self->clear;
1555		2310
1556	$self->unlink_save;	2311	$self->unlink_save;
1557	$self->destroy;	2312	$self->destroy;
1558	}	2313	}
1559		2314
1560	my $nuke_counter = "aaaa";	2315	my $nuke_counter = "aaaa";
1561		2316
1562	sub nuke {	2317	sub nuke {
1563	my ($self) = @_;	2318	my ($self) = @_;
1564		2319
		2320	{
		2321	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2322
		2323	delete $cf::MAP{$self->path};
		2324
		2325	$self->unlink_save;
		2326
		2327	bless $self, "cf::map";
		2328	delete $self->{deny_reset};
1565	$self->{deny_save} = 1;	2329	$self->{deny_save} = 1;
1566	$self->reset_timeout (1);	2330	$self->reset_timeout (1);
1567	$self->rename ("{nuke}/" . ($nuke_counter++));	2331	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2332
		2333	$cf::MAP{$self->path} = $self;
		2334	}
		2335
1568	$self->reset; # polite request, might not happen	2336	$self->reset; # polite request, might not happen
1569	}	2337	}
1570		2338
1571	sub customise_for {	2339	=item $maps = cf::map::tmp_maps
1572	my ($map, $ob) = @_;
1573		2340
1574	if ($map->per_player) {	2341	Returns an arrayref with all map paths of currently instantiated and saved
1575	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2342	maps. May block.
		2343
		2344	=cut
		2345
		2346	sub tmp_maps() {
1576	}	2347	[
1577		2348	map {
1578	$map	2349	utf8::decode $_;
		2350	/\.map$/
		2351	? normalise $_
		2352	: ()
		2353	} @{ aio_readdir $TMPDIR or [] }
		2354	]
1579	}	2355	}
1580		2356
1581	package cf;	2357	=item $maps = cf::map::random_maps
		2358
		2359	Returns an arrayref with all map paths of currently instantiated and saved
		2360	random maps. May block.
		2361
		2362	=cut
		2363
		2364	sub random_maps() {
		2365	[
		2366	map {
		2367	utf8::decode $_;
		2368	/\.map$/
		2369	? normalise "?random/$_"
		2370	: ()
		2371	} @{ aio_readdir $RANDOMDIR or [] }
		2372	]
		2373	}
		2374
		2375	=item cf::map::unique_maps
		2376
		2377	Returns an arrayref of paths of all shared maps that have
		2378	instantiated unique items. May block.
		2379
		2380	=cut
		2381
		2382	sub unique_maps() {
		2383	[
		2384	map {
		2385	utf8::decode $_;
		2386	s/\.map$//; # TODO future compatibility hack
		2387	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2388	? ()
		2389	: normalise $_
		2390	} @{ aio_readdir $UNIQUEDIR or [] }
		2391	]
		2392	}
1582		2393
1583	=back	2394	=back
1584		2395
1585	=head3 cf::object	2396	=head3 cf::object
1586		2397
…		…
1590		2401
1591	=over 4	2402	=over 4
1592		2403
1593	=item $ob->inv_recursive	2404	=item $ob->inv_recursive
1594		2405
1595	Returns the inventory of the object _and_ their inventories, recursively.	2406	Returns the inventory of the object I<and> their inventories, recursively,
		2407	but I<not> the object itself.
1596		2408
1597	=cut	2409	=cut
1598		2410
1599	sub inv_recursive_;	2411	sub inv_recursive_;
1600	sub inv_recursive_ {	2412	sub inv_recursive_ {
1601	map { $_, inv_recursive_ $_->inv } @_	2413	map { $_, inv_recursive_ $_->inv } @_
1602	}	2414	}
1603		2415
1604	sub inv_recursive {	2416	sub inv_recursive {
1605	inv_recursive_ inv $_[0]	2417	inv_recursive_ inv $_[0]
		2418	}
		2419
		2420	=item $ref = $ob->ref
		2421
		2422	Creates and returns a persistent reference to an object that can be stored as a string.
		2423
		2424	=item $ob = cf::object::deref ($refstring)
		2425
		2426	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2427	even if the object actually exists. May block.
		2428
		2429	=cut
		2430
		2431	sub deref {
		2432	my ($ref) = @_;
		2433
		2434	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2435	my ($uuid, $name) = ($1, $2);
		2436	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2437	or return;
		2438	$pl->ob->uuid eq $uuid
		2439	or return;
		2440
		2441	$pl->ob
		2442	} else {
		2443	warn "$ref: cannot resolve object reference\n";
		2444	undef
		2445	}
1606	}	2446	}
1607		2447
1608	package cf;	2448	package cf;
1609		2449
1610	=back	2450	=back
…		…
1629		2469
1630	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2470	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1631		2471
1632	if ($self->{record_replies}) {	2472	if ($self->{record_replies}) {
1633	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2473	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2474
1634	} else {	2475	} else {
		2476	my $pl = $self->contr;
		2477
		2478	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2479	my $dialog = $pl->{npc_dialog};
		2480	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2481
		2482	} else {
1635	$msg = $npc->name . " says: $msg" if $npc;	2483	$msg = $npc->name . " says: $msg" if $npc;
1636	$self->message ($msg, $flags);	2484	$self->message ($msg, $flags);
		2485	}
1637	}	2486	}
		2487	}
		2488
		2489	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2490
		2491	=cut
		2492
		2493	sub cf::object::send_msg {
		2494	my $pl = shift->contr
		2495	or return;
		2496	$pl->send_msg (@_);
1638	}	2497	}
1639		2498
1640	=item $player_object->may ("access")	2499	=item $player_object->may ("access")
1641		2500
1642	Returns wether the given player is authorized to access resource "access"	2501	Returns wether the given player is authorized to access resource "access"
…		…
1655		2514
1656	=item $player_object->enter_link	2515	=item $player_object->enter_link
1657		2516
1658	Freezes the player and moves him/her to a special map (C<{link}>).	2517	Freezes the player and moves him/her to a special map (C<{link}>).
1659		2518
1660	The player should be reaosnably safe there for short amounts of time. You	2519	The player should be reasonably safe there for short amounts of time. You
1661	I<MUST> call C<leave_link> as soon as possible, though.	2520	I<MUST> call C<leave_link> as soon as possible, though.
1662		2521
		2522	Will never block.
		2523
1663	=item $player_object->leave_link ($map, $x, $y)	2524	=item $player_object->leave_link ($map, $x, $y)
1664		2525
1665	Moves the player out of the specila link map onto the given map. If the	2526	Moves the player out of the special C<{link}> map onto the specified
1666	map is not valid (or omitted), the player will be moved back to the	2527	map. If the map is not valid (or omitted), the player will be moved back
1667	location he/she was before the call to C<enter_link>, or, if that fails,	2528	to the location he/she was before the call to C<enter_link>, or, if that
1668	to the emergency map position.	2529	fails, to the emergency map position.
1669		2530
1670	Might block.	2531	Might block.
1671		2532
1672	=cut	2533	=cut
		2534
		2535	sub link_map {
		2536	unless ($LINK_MAP) {
		2537	$LINK_MAP = cf::map::find "{link}"
		2538	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2539	$LINK_MAP->load;
		2540	}
		2541
		2542	$LINK_MAP
		2543	}
1673		2544
1674	sub cf::object::player::enter_link {	2545	sub cf::object::player::enter_link {
1675	my ($self) = @_;	2546	my ($self) = @_;
1676		2547
1677	$self->deactivate_recursive;	2548	$self->deactivate_recursive;
1678		2549
1679	return if $self->map == $LINK_MAP;	2550	return if UNIVERSAL::isa $self->map, "ext::map_link";
1680		2551
1681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2552	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1682	if $self->map;	2553	if $self->map && $self->map->{path} ne "{link}";
1683		2554
1684	$self->enter_map ($LINK_MAP, 20, 20);	2555	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1685	}	2556	}
1686		2557
1687	sub cf::object::player::leave_link {	2558	sub cf::object::player::leave_link {
1688	my ($self, $map, $x, $y) = @_;	2559	my ($self, $map, $x, $y) = @_;
		2560
		2561	return unless $self->contr->active;
1689		2562
1690	my $link_pos = delete $self->{_link_pos};	2563	my $link_pos = delete $self->{_link_pos};
1691		2564
1692	unless ($map) {	2565	unless ($map) {
1693	# restore original map position	2566	# restore original map position
…		…
1707	# use -1 or undef as default coordinates, not 0, 0	2580	# use -1 or undef as default coordinates, not 0, 0
1708	($x, $y) = ($map->enter_x, $map->enter_y)	2581	($x, $y) = ($map->enter_x, $map->enter_y)
1709	if $x <=0 && $y <= 0;	2582	if $x <=0 && $y <= 0;
1710		2583
1711	$map->load;	2584	$map->load;
		2585	$map->load_neighbours;
1712		2586
1713	return unless $self->contr->active;	2587	return unless $self->contr->active;
1714	$self->activate_recursive;	2588	$self->activate_recursive;
		2589
		2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1715	$self->enter_map ($map, $x, $y);	2591	$self->enter_map ($map, $x, $y);
1716	}	2592	}
1717		2593
1718	cf::player->attach (	2594	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1719	on_logout => sub {
1720	my ($pl) = @_;
1721		2595
1722	# abort map switching before logout	2596	Moves the player to the given map-path and coordinates by first freezing
1723	if ($pl->ob->{_link_pos}) {	2597	her, loading and preparing them map, calling the provided $check callback
1724	cf::sync_job {	2598	that has to return the map if sucecssful, and then unfreezes the player on
1725	$pl->ob->leave_link	2599	the new (success) or old (failed) map position. In either case, $done will
1726	};	2600	be called at the end of this process.
1727	}
1728	},
1729	on_login => sub {
1730	my ($pl) = @_;
1731		2601
1732	# try to abort aborted map switching on player login :)
1733	# should happen only on crashes
1734	if ($pl->ob->{_link_pos}) {
1735	$pl->ob->enter_link;
1736	(async {
1737	# we need this sleep as the login has a concurrent enter_exit running
1738	# and this sleep increases chances of the player not ending up in scorn
1739	$pl->ob->reply (undef,
1740	"There was an internal problem at your last logout, "
1741	. "the server will try to bring you to your intended destination in a second.",
1742	cf::NDI_RED);
1743	Coro::Timer::sleep 1;
1744	$pl->ob->leave_link;
1745	})->prio (2);
1746	}
1747	},
1748	);
1749
1750	=item $player_object->goto ($path, $x, $y)
1751
1752	=cut	2602	=cut
		2603
		2604	our $GOTOGEN;
1753		2605
1754	sub cf::object::player::goto {	2606	sub cf::object::player::goto {
1755	my ($self, $path, $x, $y) = @_;	2607	my ($self, $path, $x, $y, $check, $done) = @_;
1756		2608
1757	$path = new cf::path $path;	2609	# do generation counting so two concurrent goto's will be executed in-order
1758	$path ne "/" or Carp::cluck ("oy");#d#	2610	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1759		2611
1760	$self->enter_link;	2612	$self->enter_link;
1761		2613
1762	(async {	2614	(async {
1763	my $map = cf::map::find $path->as_string;	2615	$Coro::current->{desc} = "player::goto $path $x $y";
		2616
		2617	# *tag paths override both path and x|y
		2618	if ($path =~ /^\*(.*)$/) {
		2619	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2620	my $ob = $obs[rand @obs];
		2621
		2622	# see if we actually can go there
		2623	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2624	$ob = $obs[rand @obs];
		2625	} else {
		2626	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2627	}
		2628	# else put us there anyways for now #d#
		2629
		2630	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2631	} else {
		2632	($path, $x, $y) = (undef, undef, undef);
		2633	}
		2634	}
		2635
		2636	my $map = eval {
		2637	my $map = defined $path ? cf::map::find $path : undef;
		2638
		2639	if ($map) {
1764	$map = $map->customise_for ($self) if $map;	2640	$map = $map->customise_for ($self);
1765		2641	$map = $check->($map) if $check && $map;
1766	# warn "entering ", $map->path, " at ($x, $y)\n"	2642	} else {
1767	# if $map;
1768
1769	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2643	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2644	}
1770		2645
		2646	$map
		2647	};
		2648
		2649	if ($@) {
		2650	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2651	LOG llevError | logBacktrace, Carp::longmess $@;
		2652	}
		2653
		2654	if ($gen == $self->{_goto_generation}) {
		2655	delete $self->{_goto_generation};
1771	$self->leave_link ($map, $x, $y);	2656	$self->leave_link ($map, $x, $y);
		2657	}
		2658
		2659	$done->() if $done;
1772	})->prio (1);	2660	})->prio (1);
1773	}	2661	}
1774		2662
1775	=item $player_object->enter_exit ($exit_object)	2663	=item $player_object->enter_exit ($exit_object)
1776		2664
…		…
1778		2666
1779	sub parse_random_map_params {	2667	sub parse_random_map_params {
1780	my ($spec) = @_;	2668	my ($spec) = @_;
1781		2669
1782	my $rmp = { # defaults	2670	my $rmp = { # defaults
1783	xsize => 10,	2671	xsize => (cf::rndm 15, 40),
1784	ysize => 10,	2672	ysize => (cf::rndm 15, 40),
		2673	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2674	#layout => string,
1785	};	2675	};
1786		2676
1787	for (split /\n/, $spec) {	2677	for (split /\n/, $spec) {
1788	my ($k, $v) = split /\s+/, $_, 2;	2678	my ($k, $v) = split /\s+/, $_, 2;
1789		2679
…		…
1793	$rmp	2683	$rmp
1794	}	2684	}
1795		2685
1796	sub prepare_random_map {	2686	sub prepare_random_map {
1797	my ($exit) = @_;	2687	my ($exit) = @_;
		2688
		2689	my $guard = cf::lock_acquire "exit_prepare:$exit";
1798		2690
1799	# all this does is basically replace the /! path by	2691	# all this does is basically replace the /! path by
1800	# a new random map path (?random/...) with a seed	2692	# a new random map path (?random/...) with a seed
1801	# that depends on the exit object	2693	# that depends on the exit object
1802		2694
1803	my $rmp = parse_random_map_params $exit->msg;	2695	my $rmp = parse_random_map_params $exit->msg;
1804		2696
1805	if ($exit->map) {	2697	if ($exit->map) {
1806	$rmp->{region} = $exit->map->region_name;	2698	$rmp->{region} = $exit->region->name;
1807	$rmp->{origin_map} = $exit->map->path;	2699	$rmp->{origin_map} = $exit->map->path;
1808	$rmp->{origin_x} = $exit->x;	2700	$rmp->{origin_x} = $exit->x;
1809	$rmp->{origin_y} = $exit->y;	2701	$rmp->{origin_y} = $exit->y;
1810	}	2702	}
1811		2703
1812	$rmp->{random_seed} ||= $exit->random_seed;	2704	$rmp->{random_seed} ||= $exit->random_seed;
1813		2705
1814	my $data = cf::to_json $rmp;	2706	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1815	my $md5 = Digest::MD5::md5_hex $data;	2707	my $md5 = Digest::MD5::md5_hex $data;
		2708	my $meta = "$RANDOMDIR/$md5.meta";
1816		2709
1817	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2710	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1818	aio_write $fh, 0, (length $data), $data, 0;	2711	aio_write $fh, 0, (length $data), $data, 0;
		2712	undef $fh;
		2713	aio_rename "$meta~", $meta;
1819		2714
1820	$exit->slaying ("?random/$md5");	2715	$exit->slaying ("?random/$md5");
1821	$exit->msg (undef);	2716	$exit->msg (undef);
1822	}	2717	}
1823	}	2718	}
…		…
1825	sub cf::object::player::enter_exit {	2720	sub cf::object::player::enter_exit {
1826	my ($self, $exit) = @_;	2721	my ($self, $exit) = @_;
1827		2722
1828	return unless $self->type == cf::PLAYER;	2723	return unless $self->type == cf::PLAYER;
1829		2724
		2725	if ($exit->slaying eq "/!") {
		2726	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2727	# the problem is that $exit might not survive long enough
		2728	# so it needs to be done right now, right here
		2729	cf::sync_job { prepare_random_map $exit };
		2730	}
		2731
		2732	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2733	my $hp = $exit->stats->hp;
		2734	my $sp = $exit->stats->sp;
		2735
1830	$self->enter_link;	2736	$self->enter_link;
1831		2737
		2738	# if exit is damned, update players death & WoR home-position
		2739	$self->contr->savebed ($slaying, $hp, $sp)
		2740	if $exit->flag (FLAG_DAMNED);
		2741
1832	(async {	2742	(async {
		2743	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2744
1833	$self->deactivate_recursive; # just to be sure	2745	$self->deactivate_recursive; # just to be sure
1834	unless (eval {	2746	unless (eval {
1835	prepare_random_map $exit	2747	$self->goto ($slaying, $hp, $sp);
1836	if $exit->slaying eq "/!";
1837
1838	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1839	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1840		2748
1841	1;	2749	1;
1842	}) {	2750	}) {
1843	$self->message ("Something went wrong deep within the crossfire server. "	2751	$self->message ("Something went wrong deep within the crossfire server. "
1844	. "I'll try to bring you back to the map you were before. "	2752	. "I'll try to bring you back to the map you were before. "
1845	. "Please report this to the dungeon master",	2753	. "Please report this to the dungeon master!",
1846	cf::NDI_UNIQUE | cf::NDI_RED);	2754	cf::NDI_UNIQUE | cf::NDI_RED);
1847		2755
1848	warn "ERROR in enter_exit: $@";	2756	warn "ERROR in enter_exit: $@";
1849	$self->leave_link;	2757	$self->leave_link;
1850	}	2758	}
1851	})->prio (1);	2759	})->prio (1);
…		…
1864		2772
1865	sub cf::client::send_drawinfo {	2773	sub cf::client::send_drawinfo {
1866	my ($self, $text, $flags) = @_;	2774	my ($self, $text, $flags) = @_;
1867		2775
1868	utf8::encode $text;	2776	utf8::encode $text;
1869	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2777	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1870	}	2778	}
1871		2779
		2780	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2781
		2782	Send a drawinfo or msg packet to the client, formatting the msg for the
		2783	client if neccessary. C<$type> should be a string identifying the type of
		2784	the message, with C<log> being the default. If C<$color> is negative, suppress
		2785	the message unless the client supports the msg packet.
		2786
		2787	=cut
		2788
		2789	# non-persistent channels (usually the info channel)
		2790	our %CHANNEL = (
		2791	"c/identify" => {
		2792	id => "infobox",
		2793	title => "Identify",
		2794	reply => undef,
		2795	tooltip => "Items recently identified",
		2796	},
		2797	"c/examine" => {
		2798	id => "infobox",
		2799	title => "Examine",
		2800	reply => undef,
		2801	tooltip => "Signs and other items you examined",
		2802	},
		2803	"c/book" => {
		2804	id => "infobox",
		2805	title => "Book",
		2806	reply => undef,
		2807	tooltip => "The contents of a note or book",
		2808	},
		2809	"c/lookat" => {
		2810	id => "infobox",
		2811	title => "Look",
		2812	reply => undef,
		2813	tooltip => "What you saw there",
		2814	},
		2815	"c/who" => {
		2816	id => "infobox",
		2817	title => "Players",
		2818	reply => undef,
		2819	tooltip => "Shows players who are currently online",
		2820	},
		2821	"c/body" => {
		2822	id => "infobox",
		2823	title => "Body Parts",
		2824	reply => undef,
		2825	tooltip => "Shows which body parts you posess and are available",
		2826	},
		2827	"c/uptime" => {
		2828	id => "infobox",
		2829	title => "Uptime",
		2830	reply => undef,
		2831	tooltip => "How long the server has been running since last restart",
		2832	},
		2833	"c/mapinfo" => {
		2834	id => "infobox",
		2835	title => "Map Info",
		2836	reply => undef,
		2837	tooltip => "Information related to the maps",
		2838	},
		2839	"c/party" => {
		2840	id => "party",
		2841	title => "Party",
		2842	reply => "gsay ",
		2843	tooltip => "Messages and chat related to your party",
		2844	},
		2845	);
		2846
		2847	sub cf::client::send_msg {
		2848	my ($self, $channel, $msg, $color, @extra) = @_;
		2849
		2850	$msg = $self->pl->expand_cfpod ($msg);
		2851
		2852	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2853
		2854	# check predefined channels, for the benefit of C
		2855	if ($CHANNEL{$channel}) {
		2856	$channel = $CHANNEL{$channel};
		2857
		2858	$self->ext_msg (channel_info => $channel)
		2859	if $self->can_msg;
		2860
		2861	$channel = $channel->{id};
		2862
		2863	} elsif (ref $channel) {
		2864	# send meta info to client, if not yet sent
		2865	unless (exists $self->{channel}{$channel->{id}}) {
		2866	$self->{channel}{$channel->{id}} = $channel;
		2867	$self->ext_msg (channel_info => $channel)
		2868	if $self->can_msg;
		2869	}
		2870
		2871	$channel = $channel->{id};
		2872	}
		2873
		2874	return unless @extra || length $msg;
		2875
		2876	if ($self->can_msg) {
		2877	# default colour, mask it out
		2878	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2879	if $color & cf::NDI_DEF;
		2880
		2881	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2882	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2883	} else {
		2884	if ($color >= 0) {
		2885	# replace some tags by gcfclient-compatible ones
		2886	for ($msg) {
		2887	1 while
		2888	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2889	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2890	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2891	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2892	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2893	}
		2894
		2895	$color &= cf::NDI_COLOR_MASK;
		2896
		2897	utf8::encode $msg;
		2898
		2899	if (0 && $msg =~ /\[/) {
		2900	# COMMAND/INFO
		2901	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2902	} else {
		2903	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2904	$self->send_packet ("drawinfo $color $msg")
		2905	}
		2906	}
		2907	}
		2908	}
		2909
		2910	=item $client->ext_msg ($type, @msg)
		2911
		2912	Sends an ext event to the client.
		2913
		2914	=cut
		2915
		2916	sub cf::client::ext_msg($$@) {
		2917	my ($self, $type, @msg) = @_;
		2918
		2919	if ($self->extcmd == 2) {
		2920	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2921	} elsif ($self->extcmd == 1) { # TODO: remove
		2922	push @msg, msgtype => "event_$type";
		2923	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2924	}
		2925	}
		2926
		2927	=item $client->ext_reply ($msgid, @msg)
		2928
		2929	Sends an ext reply to the client.
		2930
		2931	=cut
		2932
		2933	sub cf::client::ext_reply($$@) {
		2934	my ($self, $id, @msg) = @_;
		2935
		2936	if ($self->extcmd == 2) {
		2937	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2938	} elsif ($self->extcmd == 1) {
		2939	#TODO: version 1, remove
		2940	unshift @msg, msgtype => "reply", msgid => $id;
		2941	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2942	}
		2943	}
1872		2944
1873	=item $success = $client->query ($flags, "text", \&cb)	2945	=item $success = $client->query ($flags, "text", \&cb)
1874		2946
1875	Queues a query to the client, calling the given callback with	2947	Queues a query to the client, calling the given callback with
1876	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2948	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1877	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2949	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1878		2950
1879	Queries can fail, so check the return code. Or don't, as queries will become	2951	Queries can fail, so check the return code. Or don't, as queries will
1880	reliable at some point in the future.	2952	become reliable at some point in the future.
1881		2953
1882	=cut	2954	=cut
1883		2955
1884	sub cf::client::query {	2956	sub cf::client::query {
1885	my ($self, $flags, $text, $cb) = @_;	2957	my ($self, $flags, $text, $cb) = @_;
…		…
1893	utf8::encode $text;	2965	utf8::encode $text;
1894	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2966	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1895		2967
1896	$self->send_packet ($self->{query_queue}[0][0])	2968	$self->send_packet ($self->{query_queue}[0][0])
1897	if @{ $self->{query_queue} } == 1;	2969	if @{ $self->{query_queue} } == 1;
		2970
		2971	1
1898	}	2972	}
1899		2973
1900	cf::client->attach (	2974	cf::client->attach (
		2975	on_connect => sub {
		2976	my ($ns) = @_;
		2977
		2978	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2979	},
1901	on_reply => sub {	2980	on_reply => sub {
1902	my ($ns, $msg) = @_;	2981	my ($ns, $msg) = @_;
1903		2982
1904	# this weird shuffling is so that direct followup queries	2983	# this weird shuffling is so that direct followup queries
1905	# get handled first	2984	# get handled first
1906	my $queue = delete $ns->{query_queue}	2985	my $queue = delete $ns->{query_queue}
1907	or return; # be conservative, not sure how that can happen, but we saw a crash here	2986	or return; # be conservative, not sure how that can happen, but we saw a crash here
1908		2987
1909	(shift @$queue)->[1]->($msg);	2988	(shift @$queue)->[1]->($msg);
		2989	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1910		2990
1911	push @{ $ns->{query_queue} }, @$queue;	2991	push @{ $ns->{query_queue} }, @$queue;
1912		2992
1913	if (@{ $ns->{query_queue} } == @$queue) {	2993	if (@{ $ns->{query_queue} } == @$queue) {
1914	if (@$queue) {	2994	if (@$queue) {
…		…
1916	} else {	2996	} else {
1917	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2997	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1918	}	2998	}
1919	}	2999	}
1920	},	3000	},
		3001	on_exticmd => sub {
		3002	my ($ns, $buf) = @_;
		3003
		3004	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3005
		3006	if (ref $msg) {
		3007	my ($type, $reply, @payload) =
		3008	"ARRAY" eq ref $msg
		3009	? @$msg
		3010	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3011
		3012	my @reply;
		3013
		3014	if (my $cb = $EXTICMD{$type}) {
		3015	@reply = $cb->($ns, @payload);
		3016	}
		3017
		3018	$ns->ext_reply ($reply, @reply)
		3019	if $reply;
		3020
		3021	} else {
		3022	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3023	}
		3024
		3025	cf::override;
		3026	},
1921	);	3027	);
1922		3028
1923	=item $client->async (\&cb)	3029	=item $client->async (\&cb)
1924		3030
1925	Create a new coroutine, running the specified callback. The coroutine will	3031	Create a new coroutine, running the specified callback. The coroutine will
…		…
1966	our $safe = new Safe "safe";	3072	our $safe = new Safe "safe";
1967	our $safe_hole = new Safe::Hole;	3073	our $safe_hole = new Safe::Hole;
1968		3074
1969	$SIG{FPE} = 'IGNORE';	3075	$SIG{FPE} = 'IGNORE';
1970		3076
1971	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3077	$safe->permit_only (Opcode::opset qw(
		3078	:base_core :base_mem :base_orig :base_math
		3079	grepstart grepwhile mapstart mapwhile
		3080	sort time
		3081	));
1972		3082
1973	# here we export the classes and methods available to script code	3083	# here we export the classes and methods available to script code
1974		3084
1975	=pod	3085	=pod
1976		3086
1977	The following fucntions and emthods are available within a safe environment:	3087	The following functions and methods are available within a safe environment:
1978		3088
1979	cf::object contr pay_amount pay_player map	3089	cf::object
		3090	contr pay_amount pay_player map x y force_find force_add destroy
		3091	insert remove name archname title slaying race decrease split
		3092
1980	cf::object::player player	3093	cf::object::player
1981	cf::player peaceful	3094	player
1982	cf::map trigger	3095
		3096	cf::player
		3097	peaceful
		3098
		3099	cf::map
		3100	trigger
1983		3101
1984	=cut	3102	=cut
1985		3103
1986	for (	3104	for (
1987	["cf::object" => qw(contr pay_amount pay_player map)],	3105	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3106	insert remove inv name archname title slaying race
		3107	decrease split destroy)],
1988	["cf::object::player" => qw(player)],	3108	["cf::object::player" => qw(player)],
1989	["cf::player" => qw(peaceful)],	3109	["cf::player" => qw(peaceful)],
1990	["cf::map" => qw(trigger)],	3110	["cf::map" => qw(trigger)],
1991	) {	3111	) {
1992	no strict 'refs';	3112	no strict 'refs';
…		…
2063	=back	3183	=back
2064		3184
2065	=cut	3185	=cut
2066		3186
2067	#############################################################################	3187	#############################################################################
		3188	# the server's init and main functions
2068		3189
2069	=head2 EXTENSION DATABASE SUPPORT	3190	sub load_facedata($) {
		3191	my ($path) = @_;
2070		3192
2071	Crossfire maintains a very simple database for extension use. It can	3193	# HACK to clear player env face cache, we need some signal framework
2072	currently store anything that can be serialised using Storable, which	3194	# for this (global event?)
2073	excludes objects.	3195	%ext::player_env::MUSIC_FACE_CACHE = ();
2074		3196
2075	The parameter C<$family> should best start with the name of the extension	3197	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2076	using it, it should be unique.
2077		3198
2078	=over 4	3199	warn "loading facedata from $path\n";
2079		3200
2080	=item $hashref = cf::db_get $family	3201	my $facedata;
		3202	0 < aio_load $path, $facedata
		3203	or die "$path: $!";
2081		3204
2082	Return a hashref for use by the extension C<$family>, which can be	3205	$facedata = Coro::Storable::thaw $facedata;
2083	modified. After modifications, you have to call C<cf::db_dirty> or
2084	C<cf::db_sync>.
2085		3206
2086	=item $value = cf::db_get $family => $key	3207	$facedata->{version} == 2
		3208	or cf::cleanup "$path: version mismatch, cannot proceed.";
2087		3209
2088	Returns a single value from the database	3210	# patch in the exptable
2089		3211	$facedata->{resource}{"res/exp_table"} = {
2090	=item cf::db_put $family => $hashref	3212	type => FT_RSRC,
2091		3213	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2092	Stores the given family hashref into the database. Updates are delayed, if
2093	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2094
2095	=item cf::db_put $family => $key => $value
2096
2097	Stores the given C<$value> in the family hash. Updates are delayed, if you
2098	want the data to be synced to disk immediately, use C<cf::db_sync>.
2099
2100	=item cf::db_dirty
2101
2102	Marks the database as dirty, to be updated at a later time.
2103
2104	=item cf::db_sync
2105
2106	Immediately write the database to disk I<if it is dirty>.
2107
2108	=cut
2109
2110	our $DB;
2111
2112	{
2113	my $path = cf::localdir . "/database.pst";
2114
2115	sub db_load() {
2116	$DB = stat $path ? Storable::retrieve $path : { };
2117	}
2118
2119	my $pid;
2120
2121	sub db_save() {
2122	waitpid $pid, 0 if $pid;
2123	if (0 == ($pid = fork)) {
2124	$DB->{_meta}{version} = 1;
2125	Storable::nstore $DB, "$path~";
2126	rename "$path~", $path;
2127	cf::_exit 0 if defined $pid;
2128	}
2129	}
2130
2131	my $dirty;
2132
2133	sub db_sync() {
2134	db_save if $dirty;
2135	undef $dirty;
2136	}
2137
2138	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2139	db_sync;
2140	});	3214	};
		3215	cf::cede_to_tick;
2141		3216
2142	sub db_dirty() {
2143	$dirty = 1;
2144	$idle->start;
2145	}	3217	{
		3218	my $faces = $facedata->{faceinfo};
2146		3219
2147	sub db_get($;$) {	3220	while (my ($face, $info) = each %$faces) {
2148	@_ >= 2	3221	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2149	? $DB->{$_[0]}{$_[1]}
2150	: ($DB->{$_[0]} ||= { })
2151	}
2152		3222
2153	sub db_put($$;$) {	3223	cf::face::set_visibility $idx, $info->{visibility};
2154	if (@_ >= 3) {	3224	cf::face::set_magicmap $idx, $info->{magicmap};
2155	$DB->{$_[0]}{$_[1]} = $_[2];	3225	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2156	} else {	3226	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2157	$DB->{$_[0]} = $_[1];
2158	}
2159	db_dirty;
2160	}
2161		3227
2162	cf::global->attach (	3228	cf::cede_to_tick;
2163	prio => 10000,
2164	on_cleanup => sub {
2165	db_sync;
2166	},	3229	}
2167	);
2168	}
2169		3230
2170	#############################################################################	3231	while (my ($face, $info) = each %$faces) {
2171	# the server's main()	3232	next unless $info->{smooth};
2172		3233
2173	sub cfg_load {	3234	my $idx = cf::face::find $face
		3235	or next;
		3236
		3237	if (my $smooth = cf::face::find $info->{smooth}) {
		3238	cf::face::set_smooth $idx, $smooth;
		3239	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3240	} else {
		3241	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3242	}
		3243
		3244	cf::cede_to_tick;
		3245	}
		3246	}
		3247
		3248	{
		3249	my $anims = $facedata->{animinfo};
		3250
		3251	while (my ($anim, $info) = each %$anims) {
		3252	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3253	cf::cede_to_tick;
		3254	}
		3255
		3256	cf::anim::invalidate_all; # d'oh
		3257	}
		3258
		3259	{
		3260	# TODO: for gcfclient pleasure, we should give resources
		3261	# that gcfclient doesn't grok a >10000 face index.
		3262	my $res = $facedata->{resource};
		3263
		3264	while (my ($name, $info) = each %$res) {
		3265	if (defined $info->{type}) {
		3266	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3267	my $data;
		3268
		3269	if ($info->{type} & 1) {
		3270	# prepend meta info
		3271
		3272	my $meta = $enc->encode ({
		3273	name => $name,
		3274	%{ $info->{meta} || {} },
		3275	});
		3276
		3277	$data = pack "(w/a*)*", $meta, $info->{data};
		3278	} else {
		3279	$data = $info->{data};
		3280	}
		3281
		3282	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3283	cf::face::set_type $idx, $info->{type};
		3284	} else {
		3285	$RESOURCE{$name} = $info;
		3286	}
		3287
		3288	cf::cede_to_tick;
		3289	}
		3290	}
		3291
		3292	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3293
		3294	1
		3295	}
		3296
		3297	cf::global->attach (on_resource_update => sub {
		3298	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3299	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3300
		3301	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3302	my $sound = $soundconf->{compat}[$_]
		3303	or next;
		3304
		3305	my $face = cf::face::find "sound/$sound->[1]";
		3306	cf::sound::set $sound->[0] => $face;
		3307	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3308	}
		3309
		3310	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3311	my $face = cf::face::find "sound/$v";
		3312	cf::sound::set $k => $face;
		3313	}
		3314	}
		3315	});
		3316
		3317	register_exticmd fx_want => sub {
		3318	my ($ns, $want) = @_;
		3319
		3320	while (my ($k, $v) = each %$want) {
		3321	$ns->fx_want ($k, $v);
		3322	}
		3323	};
		3324
		3325	sub load_resource_file($) {
		3326	my $guard = lock_acquire "load_resource_file";
		3327
		3328	my $status = load_resource_file_ $_[0];
		3329	get_slot 0.1, 100;
		3330	cf::arch::commit_load;
		3331
		3332	$status
		3333	}
		3334
		3335	sub reload_regions {
		3336	# HACK to clear player env face cache, we need some signal framework
		3337	# for this (global event?)
		3338	%ext::player_env::MUSIC_FACE_CACHE = ();
		3339
		3340	load_resource_file "$MAPDIR/regions"
		3341	or die "unable to load regions file\n";
		3342
		3343	for (cf::region::list) {
		3344	$_->{match} = qr/$_->{match}/
		3345	if exists $_->{match};
		3346	}
		3347	}
		3348
		3349	sub reload_facedata {
		3350	load_facedata "$DATADIR/facedata"
		3351	or die "unable to load facedata\n";
		3352	}
		3353
		3354	sub reload_archetypes {
		3355	load_resource_file "$DATADIR/archetypes"
		3356	or die "unable to load archetypes\n";
		3357	}
		3358
		3359	sub reload_treasures {
		3360	load_resource_file "$DATADIR/treasures"
		3361	or die "unable to load treasurelists\n";
		3362	}
		3363
		3364	sub reload_resources {
		3365	warn "reloading resource files...\n";
		3366
		3367	reload_facedata;
		3368	reload_archetypes;
		3369	reload_regions;
		3370	reload_treasures;
		3371
		3372	warn "finished reloading resource files\n";
		3373	}
		3374
		3375	sub init {
		3376	my $guard = freeze_mainloop;
		3377
		3378	reload_resources;
		3379	}
		3380
		3381	sub reload_config {
2174	open my $fh, "<:utf8", cf::confdir . "/config"	3382	open my $fh, "<:utf8", "$CONFDIR/config"
2175	or return;	3383	or return;
2176		3384
2177	local $/;	3385	local $/;
2178	*CFG = YAML::Syck::Load <$fh>;	3386	*CFG = YAML::Load <$fh>;
2179		3387
2180	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3388	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2181		3389
2182	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3390	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2183	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3391	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2193		3401
2194	sub main {	3402	sub main {
2195	# we must not ever block the main coroutine	3403	# we must not ever block the main coroutine
2196	local $Coro::idle = sub {	3404	local $Coro::idle = sub {
2197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3405	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2198	async { Event::one_event };	3406	(async {
		3407	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3408	EV::loop EV::LOOP_ONESHOT;
		3409	})->prio (Coro::PRIO_MAX);
2199	};	3410	};
2200		3411
2201	cfg_load;	3412	{
2202	db_load;	3413	my $guard = freeze_mainloop;
		3414	reload_config;
		3415	db_init;
2203	load_extensions;	3416	load_extensions;
		3417
		3418	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3419	evthread_start IO::AIO::poll_fileno;
		3420	}
		3421
2204	Event::loop;	3422	EV::loop;
2205	}	3423	}
2206		3424
2207	#############################################################################	3425	#############################################################################
2208	# initialisation and cleanup	3426	# initialisation and cleanup
2209		3427
2210	# install some emergency cleanup handlers	3428	# install some emergency cleanup handlers
2211	BEGIN {	3429	BEGIN {
		3430	our %SIGWATCHER = ();
2212	for my $signal (qw(INT HUP TERM)) {	3431	for my $signal (qw(INT HUP TERM)) {
2213	Event->signal (	3432	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2214	data => WF_AUTOCANCEL,
2215	signal => $signal,
2216	cb => sub {
2217	cf::cleanup "SIG$signal";	3433	cf::cleanup "SIG$signal";
2218	},
2219	);	3434	};
		3435	}
		3436	}
		3437
		3438	sub write_runtime_sync {
		3439	my $runtime = "$LOCALDIR/runtime";
		3440
		3441	# first touch the runtime file to show we are still running:
		3442	# the fsync below can take a very very long time.
		3443
		3444	IO::AIO::aio_utime $runtime, undef, undef;
		3445
		3446	my $guard = cf::lock_acquire "write_runtime";
		3447
		3448	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3449	or return;
		3450
		3451	my $value = $cf::RUNTIME + 90 + 10;
		3452	# 10 is the runtime save interval, for a monotonic clock
		3453	# 60 allows for the watchdog to kill the server.
		3454
		3455	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3456	and return;
		3457
		3458	# always fsync - this file is important
		3459	aio_fsync $fh
		3460	and return;
		3461
		3462	# touch it again to show we are up-to-date
		3463	aio_utime $fh, undef, undef;
		3464
		3465	close $fh
		3466	or return;
		3467
		3468	aio_rename "$runtime~", $runtime
		3469	and return;
		3470
		3471	warn "runtime file written.\n";
		3472
2220	}	3473	1
2221	}	3474	}
2222		3475
		3476	our $uuid_lock;
		3477	our $uuid_skip;
		3478
		3479	sub write_uuid_sync($) {
		3480	$uuid_skip ||= $_[0];
		3481
		3482	return if $uuid_lock;
		3483	local $uuid_lock = 1;
		3484
		3485	my $uuid = "$LOCALDIR/uuid";
		3486
		3487	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3488	or return;
		3489
		3490	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3491	$uuid_skip = 0;
		3492
		3493	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3494	and return;
		3495
		3496	# always fsync - this file is important
		3497	aio_fsync $fh
		3498	and return;
		3499
		3500	close $fh
		3501	or return;
		3502
		3503	aio_rename "$uuid~", $uuid
		3504	and return;
		3505
		3506	warn "uuid file written ($value).\n";
		3507
		3508	1
		3509
		3510	}
		3511
		3512	sub write_uuid($$) {
		3513	my ($skip, $sync) = @_;
		3514
		3515	$sync ? write_uuid_sync $skip
		3516	: async { write_uuid_sync $skip };
		3517	}
		3518
2223	sub emergency_save {	3519	sub emergency_save() {
2224	my $freeze_guard = cf::freeze_mainloop;	3520	my $freeze_guard = cf::freeze_mainloop;
2225		3521
2226	warn "enter emergency perl save\n";	3522	warn "enter emergency perl save\n";
2227		3523
2228	cf::sync_job {	3524	cf::sync_job {
2229	# use a peculiar iteration method to avoid tripping on perl	3525	# use a peculiar iteration method to avoid tripping on perl
2230	# refcount bugs in for. also avoids problems with players	3526	# refcount bugs in for. also avoids problems with players
2231	# and maps saved/Destroyed asynchronously.	3527	# and maps saved/destroyed asynchronously.
2232	warn "begin emergency player save\n";	3528	warn "begin emergency player save\n";
2233	for my $login (keys %cf::PLAYER) {	3529	for my $login (keys %cf::PLAYER) {
2234	my $pl = $cf::PLAYER{$login} or next;	3530	my $pl = $cf::PLAYER{$login} or next;
2235	$pl->valid or next;	3531	$pl->valid or next;
		3532	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2236	$pl->save;	3533	$pl->save;
2237	}	3534	}
2238	warn "end emergency player save\n";	3535	warn "end emergency player save\n";
2239		3536
2240	warn "begin emergency map save\n";	3537	warn "begin emergency map save\n";
…		…
2242	my $map = $cf::MAP{$path} or next;	3539	my $map = $cf::MAP{$path} or next;
2243	$map->valid or next;	3540	$map->valid or next;
2244	$map->save;	3541	$map->save;
2245	}	3542	}
2246	warn "end emergency map save\n";	3543	warn "end emergency map save\n";
		3544
		3545	warn "begin emergency database checkpoint\n";
		3546	BDB::db_env_txn_checkpoint $DB_ENV;
		3547	warn "end emergency database checkpoint\n";
		3548
		3549	warn "begin write uuid\n";
		3550	write_uuid_sync 1;
		3551	warn "end write uuid\n";
2247	};	3552	};
2248		3553
2249	warn "leave emergency perl save\n";	3554	warn "leave emergency perl save\n";
2250	}	3555	}
2251		3556
		3557	sub post_cleanup {
		3558	my ($make_core) = @_;
		3559
		3560	warn Carp::longmess "post_cleanup backtrace"
		3561	if $make_core;
		3562	}
		3563
2252	sub reload() {	3564	sub do_reload_perl() {
2253	# can/must only be called in main	3565	# can/must only be called in main
2254	if ($Coro::current != $Coro::main) {	3566	if ($Coro::current != $Coro::main) {
2255	warn "can only reload from main coroutine\n";	3567	warn "can only reload from main coroutine";
2256	return;	3568	return;
2257	}	3569	}
2258		3570
2259	warn "reloading...";	3571	warn "reloading...";
2260		3572
2261	my $guard = freeze_mainloop;	3573	warn "entering sync_job";
		3574
		3575	cf::sync_job {
		3576	cf::write_runtime_sync; # external watchdog should not bark
2262	cf::emergency_save;	3577	cf::emergency_save;
		3578	cf::write_runtime_sync; # external watchdog should not bark
2263		3579
2264	eval {	3580	warn "syncing database to disk";
		3581	BDB::db_env_txn_checkpoint $DB_ENV;
		3582
2265	# if anything goes wrong in here, we should simply crash as we already saved	3583	# if anything goes wrong in here, we should simply crash as we already saved
2266		3584
2267	# cancel all watchers	3585	warn "flushing outstanding aio requests";
2268	for (Event::all_watchers) {	3586	for (;;) {
2269	$_->cancel if $_->data & WF_AUTOCANCEL;	3587	BDB::flush;
		3588	IO::AIO::flush;
		3589	Coro::cede_notself;
		3590	last unless IO::AIO::nreqs || BDB::nreqs;
		3591	warn "iterate...";
2270	}	3592	}
2271		3593
		3594	++$RELOAD;
		3595
2272	# cancel all extension coros	3596	warn "cancelling all extension coros";
2273	$_->cancel for values %EXT_CORO;	3597	$_->cancel for values %EXT_CORO;
2274	%EXT_CORO = ();	3598	%EXT_CORO = ();
2275		3599
2276	# unload all extensions	3600	warn "removing commands";
2277	for (@exts) {	3601	%COMMAND = ();
		3602
		3603	warn "removing ext/exti commands";
		3604	%EXTCMD = ();
		3605	%EXTICMD = ();
		3606
		3607	warn "unloading/nuking all extensions";
		3608	for my $pkg (@EXTS) {
2278	warn "unloading <$_>";	3609	warn "... unloading $pkg";
2279	unload_extension $_;	3610
		3611	if (my $cb = $pkg->can ("unload")) {
		3612	eval {
		3613	$cb->($pkg);
		3614	1
		3615	} or warn "$pkg unloaded, but with errors: $@";
2280	}	3616	}
2281		3617
		3618	warn "... nuking $pkg";
		3619	Symbol::delete_package $pkg;
		3620	}
		3621
2282	# unload all modules loaded from $LIBDIR	3622	warn "unloading all perl modules loaded from $LIBDIR";
2283	while (my ($k, $v) = each %INC) {	3623	while (my ($k, $v) = each %INC) {
2284	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3624	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2285		3625
2286	warn "removing <$k>";	3626	warn "... unloading $k";
2287	delete $INC{$k};	3627	delete $INC{$k};
2288		3628
2289	$k =~ s/\.pm$//;	3629	$k =~ s/\.pm$//;
2290	$k =~ s/\//::/g;	3630	$k =~ s/\//::/g;
2291		3631
…		…
2294	}	3634	}
2295		3635
2296	Symbol::delete_package $k;	3636	Symbol::delete_package $k;
2297	}	3637	}
2298		3638
2299	# sync database to disk
2300	cf::db_sync;
2301	IO::AIO::flush;
2302
2303	# get rid of safe::, as good as possible	3639	warn "getting rid of safe::, as good as possible";
2304	Symbol::delete_package "safe::$_"	3640	Symbol::delete_package "safe::$_"
2305	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3641	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2306		3642
2307	# remove register_script_function callbacks
2308	# TODO
2309
2310	# unload cf.pm "a bit"	3643	warn "unloading cf.pm \"a bit\"";
2311	delete $INC{"cf.pm"};	3644	delete $INC{"cf.pm"};
		3645	delete $INC{"cf/pod.pm"};
2312		3646
2313	# don't, removes xs symbols, too,	3647	# don't, removes xs symbols, too,
2314	# and global variables created in xs	3648	# and global variables created in xs
2315	#Symbol::delete_package __PACKAGE__;	3649	#Symbol::delete_package __PACKAGE__;
2316		3650
2317	# reload cf.pm	3651	warn "unload completed, starting to reload now";
		3652
2318	warn "reloading cf.pm";	3653	warn "reloading cf.pm";
2319	require cf;	3654	require cf;
2320	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3655	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2321		3656
2322	# load config and database again	3657	warn "loading config and database again";
2323	cf::cfg_load;	3658	cf::reload_config;
2324	cf::db_load;
2325		3659
2326	# load extensions
2327	warn "load extensions";	3660	warn "loading extensions";
2328	cf::load_extensions;	3661	cf::load_extensions;
2329		3662
2330	# reattach attachments to objects	3663	warn "reattaching attachments to objects/players";
2331	warn "reattach";	3664	_global_reattach; # objects, sockets
2332	_global_reattach;	3665	warn "reattaching attachments to maps";
2333	reattach $_ for values %MAP;	3666	reattach $_ for values %MAP;
		3667	warn "reattaching attachments to players";
		3668	reattach $_ for values %PLAYER;
		3669
		3670	warn "leaving sync_job";
		3671
		3672	1
		3673	} or do {
		3674	warn $@;
		3675	cf::cleanup "error while reloading, exiting.";
2334	};	3676	};
2335		3677
2336	if ($@) {	3678	warn "reloaded";
2337	warn $@;
2338	warn "error while reloading, exiting.";
2339	exit 1;
2340	}
2341
2342	warn "reloaded successfully";
2343	};	3679	};
2344		3680
2345	#############################################################################	3681	our $RELOAD_WATCHER; # used only during reload
2346		3682
2347	unless ($LINK_MAP) {	3683	sub reload_perl() {
2348	$LINK_MAP = cf::map::new;	3684	# doing reload synchronously and two reloads happen back-to-back,
		3685	# coro crashes during coro_state_free->destroy here.
2349		3686
2350	$LINK_MAP->width (41);	3687	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2351	$LINK_MAP->height (41);	3688	do_reload_perl;
2352	$LINK_MAP->alloc;	3689	undef $RELOAD_WATCHER;
2353	$LINK_MAP->path ("{link}");	3690	};
2354	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2355	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2356
2357	# dirty hack because... archetypes are not yet loaded
2358	Event->timer (
2359	after => 10,
2360	cb => sub {
2361	$_[0]->w->cancel;
2362
2363	# provide some exits "home"
2364	my $exit = cf::object::new "exit";
2365
2366	$exit->slaying ($EMERGENCY_POSITION->[0]);
2367	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2368	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2369
2370	$LINK_MAP->insert ($exit->clone, 19, 19);
2371	$LINK_MAP->insert ($exit->clone, 19, 20);
2372	$LINK_MAP->insert ($exit->clone, 19, 21);
2373	$LINK_MAP->insert ($exit->clone, 20, 19);
2374	$LINK_MAP->insert ($exit->clone, 20, 21);
2375	$LINK_MAP->insert ($exit->clone, 21, 19);
2376	$LINK_MAP->insert ($exit->clone, 21, 20);
2377	$LINK_MAP->insert ($exit->clone, 21, 21);
2378
2379	$exit->destroy;
2380	});
2381
2382	$LINK_MAP->{deny_save} = 1;
2383	$LINK_MAP->{deny_reset} = 1;
2384
2385	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2386	}	3691	}
2387
2388	register "<global>", __PACKAGE__;
2389		3692
2390	register_command "reload" => sub {	3693	register_command "reload" => sub {
2391	my ($who, $arg) = @_;	3694	my ($who, $arg) = @_;
2392		3695
2393	if ($who->flag (FLAG_WIZ)) {	3696	if ($who->flag (FLAG_WIZ)) {
2394	$who->message ("start of reload.");
2395	reload;
2396	$who->message ("end of reload.");	3697	$who->message ("reloading server.");
		3698	async {
		3699	$Coro::current->{desc} = "perl_reload";
		3700	reload_perl;
		3701	};
2397	}	3702	}
2398	};	3703	};
2399		3704
2400	unshift @INC, $LIBDIR;	3705	unshift @INC, $LIBDIR;
2401		3706
2402	$TICK_WATCHER = Event->timer (	3707	my $bug_warning = 0;
2403	reentrant => 0,	3708
2404	prio => 0,	3709	our @WAIT_FOR_TICK;
2405	at => $NEXT_TICK || $TICK,	3710	our @WAIT_FOR_TICK_BEGIN;
2406	data => WF_AUTOCANCEL,	3711
2407	cb => sub {	3712	sub wait_for_tick {
		3713	return if tick_inhibit || $Coro::current == $Coro::main;
		3714
		3715	my $signal = new Coro::Signal;
		3716	push @WAIT_FOR_TICK, $signal;
		3717	$signal->wait;
		3718	}
		3719
		3720	sub wait_for_tick_begin {
		3721	return if tick_inhibit || $Coro::current == $Coro::main;
		3722
		3723	my $signal = new Coro::Signal;
		3724	push @WAIT_FOR_TICK_BEGIN, $signal;
		3725	$signal->wait;
		3726	}
		3727
		3728	sub tick {
		3729	if ($Coro::current != $Coro::main) {
		3730	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3731	unless ++$bug_warning > 10;
		3732	return;
		3733	}
		3734
2408	cf::server_tick; # one server iteration	3735	cf::server_tick; # one server iteration
2409	$RUNTIME += $TICK;
2410	$NEXT_TICK += $TICK;
2411		3736
2412	$WAIT_FOR_TICK->broadcast;	3737	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2413	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3738	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2414		3739	Coro::async_pool {
2415	# if we are delayed by four ticks or more, skip them all	3740	$Coro::current->{desc} = "runtime saver";
2416	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2417
2418	$TICK_WATCHER->at ($NEXT_TICK);
2419	$TICK_WATCHER->start;
2420	},
2421	);
2422
2423	IO::AIO::max_poll_time $TICK * 0.2;
2424
2425	Event->io (
2426	fd => IO::AIO::poll_fileno,
2427	poll => 'r',
2428	prio => 5,
2429	data => WF_AUTOCANCEL,
2430	cb => \&IO::AIO::poll_cb,
2431	);
2432
2433	Event->timer (
2434	data => WF_AUTOCANCEL,
2435	after => 0,
2436	interval => 10,
2437	cb => sub {
2438	(Coro::unblock_sub {
2439	write_runtime	3741	write_runtime_sync
2440	or warn "ERROR: unable to write runtime file: $!";	3742	or warn "ERROR: unable to write runtime file: $!";
2441	})->();	3743	};
2442	},	3744	}
2443	);	3745
		3746	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3747	$sig->send;
		3748	}
		3749	while (my $sig = shift @WAIT_FOR_TICK) {
		3750	$sig->send;
		3751	}
		3752
		3753	$LOAD = ($NOW - $TICK_START) / $TICK;
		3754	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3755
		3756	if (0) {
		3757	if ($NEXT_TICK) {
		3758	my $jitter = $TICK_START - $NEXT_TICK;
		3759	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3760	warn "jitter $JITTER\n";#d#
		3761	}
		3762	}
		3763	}
		3764
		3765	{
		3766	# configure BDB
		3767
		3768	BDB::min_parallel 8;
		3769	BDB::max_poll_reqs $TICK * 0.1;
		3770	$Coro::BDB::WATCHER->priority (1);
		3771
		3772	unless ($DB_ENV) {
		3773	$DB_ENV = BDB::db_env_create;
		3774	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3775	| BDB::LOG_AUTOREMOVE, 1);
		3776	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3777	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3778
		3779	cf::sync_job {
		3780	eval {
		3781	BDB::db_env_open
		3782	$DB_ENV,
		3783	$BDBDIR,
		3784	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3785	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3786	0666;
		3787
		3788	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3789	};
		3790
		3791	cf::cleanup "db_env_open(db): $@" if $@;
		3792	};
		3793	}
		3794
		3795	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3796	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3797	};
		3798	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3799	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3800	};
		3801	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3802	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3803	};
		3804	}
		3805
		3806	{
		3807	# configure IO::AIO
		3808
		3809	IO::AIO::min_parallel 8;
		3810	IO::AIO::max_poll_time $TICK * 0.1;
		3811	$Coro::AIO::WATCHER->priority (1);
		3812	}
		3813
		3814	my $_log_backtrace;
		3815
		3816	sub _log_backtrace {
		3817	my ($msg, @addr) = @_;
		3818
		3819	$msg =~ s/\n//;
		3820
		3821	# limit the # of concurrent backtraces
		3822	if ($_log_backtrace < 2) {
		3823	++$_log_backtrace;
		3824	async {
		3825	$Coro::current->{desc} = "abt $msg";
		3826
		3827	my @bt = fork_call {
		3828	@addr = map { sprintf "%x", $_ } @addr;
		3829	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3830	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3831	or die "addr2line: $!";
		3832
		3833	my @funcs;
		3834	my @res = <$fh>;
		3835	chomp for @res;
		3836	while (@res) {
		3837	my ($func, $line) = splice @res, 0, 2, ();
		3838	push @funcs, "[$func] $line";
		3839	}
		3840
		3841	@funcs
		3842	};
		3843
		3844	LOG llevInfo, "[ABT] $msg\n";
		3845	LOG llevInfo, "[ABT] $_\n" for @bt;
		3846	--$_log_backtrace;
		3847	};
		3848	} else {
		3849	LOG llevInfo, "[ABT] $msg\n";
		3850	LOG llevInfo, "[ABT] [suppressed]\n";
		3851	}
		3852	}
		3853
		3854	# load additional modules
		3855	use cf::pod;
2444		3856
2445	END { cf::emergency_save }	3857	END { cf::emergency_save }
2446		3858
2447	1	3859	1
2448		3860

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