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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.163 by root, Thu Jan 11 01:01:56 2007 UTC vs.
Revision 1.412 by root, Wed Apr 2 11:13:55 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 1.86;
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 4.32 ();
		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 = ();
38		71
39	our @EXTS = (); # list of extension package names	72	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	75	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	76	our %EXT_MAP = (); # pluggable maps
43		77
		78	our $RELOAD; # number of reloads so far
44	our @EVENT;	79	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		80
47	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(!)
48	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	97	our $NEXT_TICK;
50	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;
51		105
52	our %CFG;	106	our %CFG;
53		107
54	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
56		111
57	our %PLAYER; # all users	112	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	113	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	114	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		115
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	116	# used to convert map paths into valid unix filenames by replacing / by ∕
63	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 $TICK_START; # for load detecting purposes
64		123
65	binmode STDOUT;	124	binmode STDOUT;
66	binmode STDERR;	125	binmode STDERR;
67		126
68	# read virtual server time, if available	127	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
73	}	132	}
74		133
75	mkdir cf::localdir;	134	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		136
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
		138
		139	sub cf::map::normalise;
84		140
85	#############################################################################	141	#############################################################################
86		142
87	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
88		144
…		…
95	=item $cf::RUNTIME	151	=item $cf::RUNTIME
96		152
97	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
98	every server tick.	154	every server tick.
99		155
100	=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
101		159
102	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
103	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.
104		164
105	=item $cf::NOW	165	=item $cf::NOW
106		166
107	The time of the last (current) server tick.	167	The time of the last (current) server tick.
108		168
109	=item $cf::TICK	169	=item $cf::TICK
110		170
111	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
112		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
113	=item %cf::CFG	183	=item %cf::CFG
114		184
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	186	from wherever your confdir points to.
117		187
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	188	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		189
120	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
121	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
122	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.
123	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.
124		199
125	=back	200	=back
126		201
127	=cut	202	=cut
128		203
129	BEGIN {	204	BEGIN {
130	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	206	my $msg = join "", @_;
132	utf8::encode $msg;
133		207
134	$msg .= "\n"	208	$msg .= "\n"
135	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
136		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
137	LOG llevError, $msg;	213	LOG llevError, $msg;
138	};	214	};
139	}	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#?
140		231
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@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';
146	@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)
147		239
148	# 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
149	# within the Safe compartment.	241	# within the Safe compartment.
150	for my $pkg (qw(	242	for my $pkg (qw(
151	cf::global cf::attachable	243	cf::global cf::attachable
…		…
156	)) {	248	)) {
157	no strict 'refs';	249	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	251	}
160		252
161	$Event::DIED = sub {	253	$EV::DIED = sub {
162	warn "error in event callback: @_";	254	warn "error in event callback: @_";
163	};	255	};
		256
		257	#############################################################################
164		258
165	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
166		260
167	=over 4	261	=over 4
168		262
…		…
187	$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;
188	$d	282	$d
189	} || "[unable to dump $_[0]: '$@']";	283	} || "[unable to dump $_[0]: '$@']";
190	}	284	}
191		285
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
195		287
196	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
197		289
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
206		291
207	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
208		293
209	=cut	294	=cut
210		295
211	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
213	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
214	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
215		300
216	=item cf::lock_wait $string	301	=item cf::lock_wait $string
217		302
218	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
219		304
…		…
222	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
223	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,
224	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
225	returned.	310	returned.
226		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
227	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
228	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
229		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
230	=cut	322	=cut
231		323
232	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
233		326
234	sub lock_wait($) {	327	sub lock_wait($) {
235	my ($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#
236		334
237	# wait for lock, if any	335	# wait for lock, if any
238	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	338	Coro::schedule;
…		…
246		344
247	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
248	lock_wait $key;	346	lock_wait $key;
249		347
250	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
251		350
252	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
255	}	355	}
256	}	356	}
257		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
258	sub freeze_mainloop {	364	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
260		366
261	my $guard = Coro::guard { $TICK_WATCHER->start };	367	Coro::guard \&tick_inhibit_dec;
262	$TICK_WATCHER->stop;	368	}
263	$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	my ($time, $pri, $name) = @_;
		433
		434	$time = $TICK * .6 if $time > $TICK * .6;
		435	my $sig = new Coro::Signal;
		436
		437	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		438	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		439	$SLOT_QUEUE->ready;
		440	$sig->wait;
264	}	441	}
265		442
266	=item cf::async { BLOCK }	443	=item cf::async { BLOCK }
267		444
268	Currently the same as Coro::async_pool, meaning you cannot use	445	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		450
274	BEGIN { *async = \&Coro::async_pool }	451	BEGIN { *async = \&Coro::async_pool }
275		452
276	=item cf::sync_job { BLOCK }	453	=item cf::sync_job { BLOCK }
277		454
278	The design of crossfire+ requires that the main coro ($Coro::main) is	455	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	456	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
281		459
282	If it must be done, put the blocking parts into C<sync_job>. This will run	460	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	461	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	462	server will be frozen during this time, so the block should either finish
285	fast or be very important.	463	fast or be very important.
…		…
288		466
289	sub sync_job(&) {	467	sub sync_job(&) {
290	my ($job) = @_;	468	my ($job) = @_;
291		469
292	if ($Coro::current == $Coro::main) {	470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
293	# this is the main coro, too bad, we have to block	473	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	474	# till the operation succeeds, freezing the server :/
295		475
296	# TODO: use suspend/resume instead	476	LOG llevError, Carp::longmess "sync job";#d#
297	# (but this is cancel-safe)	477
298	my $freeze_guard = freeze_mainloop;	478	my $freeze_guard = freeze_mainloop;
299		479
300	my $busy = 1;	480	my $busy = 1;
301	my @res;	481	my @res;
302		482
303	(async {	483	(async {
		484	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	485	@res = eval { $job->() };
305	warn $@ if $@;	486	warn $@ if $@;
306	undef $busy;	487	undef $busy;
307	})->prio (Coro::PRIO_MAX);	488	})->prio (Coro::PRIO_MAX);
308		489
309	while ($busy) {	490	while ($busy) {
310	Coro::cede or Event::one_event;	491	if (Coro::nready) {
		492	Coro::cede_notself;
		493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
311	}	495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
312		501
313	wantarray ? @res : $res[0]	502	wantarray ? @res : $res[0]
314	} else {	503	} else {
315	# we are in another coroutine, how wonderful, everything just works	504	# we are in another coroutine, how wonderful, everything just works
316		505
…		…
336	$EXT_CORO{$coro+0} = $coro;	525	$EXT_CORO{$coro+0} = $coro;
337		526
338	$coro	527	$coro
339	}	528	}
340		529
341	sub write_runtime {	530	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		531
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	532	Executes the given code block with the given arguments in a seperate
345	or return;	533	process, returning the results. Everything must be serialisable with
		534	Coro::Storable. May, of course, block. Note that the executed sub may
		535	never block itself or use any form of event handling.
346		536
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	537	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		538
351	aio_fsync $fh	539	sub fork_call(&@) {
352	and return;	540	my ($cb, @args) = @_;
353		541
354	close $fh	542	# we seemingly have to make a local copy of the whole thing,
355	or return;	543	# otherwise perl prematurely frees the stuff :/
		544	# TODO: investigate and fix (likely this will be rather laborious)
356		545
357	aio_rename "$runtime~", $runtime	546	my @res = Coro::Util::fork_eval {
358	and return;	547	reset_signals;
		548	&$cb
		549	}, @args;
359		550
		551	wantarray ? @res : $res[-1]
		552	}
		553
		554	=item $value = cf::db_get $family => $key
		555
		556	Returns a single value from the environment database.
		557
		558	=item cf::db_put $family => $key => $value
		559
		560	Stores the given C<$value> in the family. It can currently store binary
		561	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		562
		563	=item $db = cf::db_table "name"
		564
		565	Create and/or open a new database table. The string must not be "db" and must be unique
		566	within each server.
		567
		568	=cut
		569
		570	sub db_table($) {
		571	my ($name) = @_;
		572	my $db = BDB::db_create $DB_ENV;
		573
		574	eval {
		575	$db->set_flags (BDB::CHKSUM);
		576
		577	utf8::encode $name;
		578	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		579	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		580	cf::cleanup "db_open(db): $!" if $!;
		581	};
		582	cf::cleanup "db_open(db): $@" if $@;
		583
		584	$db
		585	}
		586
		587	our $DB;
		588
		589	sub db_init {
		590	cf::sync_job {
		591	$DB ||= db_table "db";
		592	};
		593	}
		594
		595	sub db_get($$) {
		596	my $key = "$_[0]/$_[1]";
		597
		598	cf::sync_job {
		599	BDB::db_get $DB, undef, $key, my $data;
		600
		601	$! ? ()
		602	: $data
360	1	603	}
		604	}
		605
		606	sub db_put($$$) {
		607	BDB::dbreq_pri 4;
		608	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		609	}
		610
		611	=item cf::cache $id => [$paths...], $processversion => $process
		612
		613	Generic caching function that returns the value of the resource $id,
		614	caching and regenerating as required.
		615
		616	This function can block.
		617
		618	=cut
		619
		620	sub cache {
		621	my ($id, $src, $processversion, $process) = @_;
		622
		623	my $meta =
		624	join "\x00",
		625	$processversion,
		626	map {
		627	aio_stat $_
		628	and Carp::croak "$_: $!";
		629
		630	($_, (stat _)[7,9])
		631	} @$src;
		632
		633	my $dbmeta = db_get cache => "$id/meta";
		634	if ($dbmeta ne $meta) {
		635	# changed, we may need to process
		636
		637	my @data;
		638	my $md5;
		639
		640	for (0 .. $#$src) {
		641	0 <= aio_load $src->[$_], $data[$_]
		642	or Carp::croak "$src->[$_]: $!";
		643	}
		644
		645	# if processing is expensive, check
		646	# checksum first
		647	if (1) {
		648	$md5 =
		649	join "\x00",
		650	$processversion,
		651	map {
		652	cf::cede_to_tick;
		653	($src->[$_], Digest::MD5::md5_hex $data[$_])
		654	} 0.. $#$src;
		655
		656
		657	my $dbmd5 = db_get cache => "$id/md5";
		658	if ($dbmd5 eq $md5) {
		659	db_put cache => "$id/meta", $meta;
		660
		661	return db_get cache => "$id/data";
		662	}
		663	}
		664
		665	my $t1 = Time::HiRes::time;
		666	my $data = $process->(\@data);
		667	my $t2 = Time::HiRes::time;
		668
		669	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		670
		671	db_put cache => "$id/data", $data;
		672	db_put cache => "$id/md5" , $md5;
		673	db_put cache => "$id/meta", $meta;
		674
		675	return $data;
		676	}
		677
		678	db_get cache => "$id/data"
		679	}
		680
		681	=item cf::datalog type => key => value, ...
		682
		683	Log a datalog packet of the given type with the given key-value pairs.
		684
		685	=cut
		686
		687	sub datalog($@) {
		688	my ($type, %kv) = @_;
		689	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	690	}
362		691
363	=back	692	=back
364		693
365	=cut	694	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	package cf;
522		695
523	#############################################################################	696	#############################################################################
524		697
525	=head2 ATTACHABLE OBJECTS	698	=head2 ATTACHABLE OBJECTS
526		699
…		…
528	attach callbacks/event handlers (a collection of which is called an "attachment")	701	attach callbacks/event handlers (a collection of which is called an "attachment")
529	to it. All such attachable objects support the following methods.	702	to it. All such attachable objects support the following methods.
530		703
531	In the following description, CLASS can be any of C<global>, C<object>	704	In the following description, CLASS can be any of C<global>, C<object>
532	C<player>, C<client> or C<map> (i.e. the attachable objects in	705	C<player>, C<client> or C<map> (i.e. the attachable objects in
533	crossfire+).	706	Deliantra).
534		707
535	=over 4	708	=over 4
536		709
537	=item $attachable->attach ($attachment, key => $value...)	710	=item $attachable->attach ($attachment, key => $value...)
538		711
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	825	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	826	our @CB_MAP = ();
654		827
655	my %attachment;	828	my %attachment;
656		829
		830	sub cf::attachable::thawer_merge {
		831	# simply override everything except _meta
		832	local $_[0]{_meta};
		833	%{$_[0]} = %{$_[1]};
		834	}
		835
657	sub _attach_cb($$$$) {	836	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	837	my ($registry, $event, $prio, $cb) = @_;
659		838
660	use sort 'stable';	839	use sort 'stable';
661		840
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	874	$registry = $CB_TYPE[$object_type] ||= [];
696		875
697	} elsif ($type eq "subtype") {	876	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	877	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	878	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	879	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		880
702	} elsif ($type eq "package") {	881	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	882	my $pkg = shift @arg;
704		883
705	while (my ($name, $id) = each %cb_id) {	884	while (my ($name, $id) = each %cb_id) {
…		…
734	_attach $registry, $klass, @attach;	913	_attach $registry, $klass, @attach;
735	}	914	}
736		915
737	$obj->{$name} = \%arg;	916	$obj->{$name} = \%arg;
738	} else {	917	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	918	warn "object uses attachment '$name' which is not available, postponing.\n";
740	}	919	}
741		920
742	$obj->{_attachment}{$name} = undef;	921	$obj->{_attachment}{$name} = undef;
743	}	922	}
744		923
…		…
746	if (ref $_[0]) {	925	if (ref $_[0]) {
747	_object_attach @_;	926	_object_attach @_;
748	} else {	927	} else {
749	_attach shift->_attach_registry, @_;	928	_attach shift->_attach_registry, @_;
750	}	929	}
		930	_recalc_want;
751	};	931	};
752		932
753	# all those should be optimised	933	# all those should be optimised
754	sub cf::attachable::detach {	934	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	935	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	938	delete $obj->{_attachment}{$name};
759	reattach ($obj);	939	reattach ($obj);
760	} else {	940	} else {
761	Carp::croak "cannot, currently, detach class attachments";	941	Carp::croak "cannot, currently, detach class attachments";
762	}	942	}
		943	_recalc_want;
763	};	944	};
764		945
765	sub cf::attachable::attached {	946	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	947	my ($obj, $name) = @_;
767		948
…		…
782	";	963	";
783	die if $@;	964	die if $@;
784	}	965	}
785		966
786	our $override;	967	our $override;
787	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	968	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
788		969
789	sub override {	970	sub override {
790	$override = 1;	971	$override = 1;
791	@invoke_results = ();	972	@INVOKE_RESULTS = (@_);
792	}	973	}
793		974
794	sub do_invoke {	975	sub do_invoke {
795	my $event = shift;	976	my $event = shift;
796	my $callbacks = shift;	977	my $callbacks = shift;
797		978
798	@invoke_results = ();	979	@INVOKE_RESULTS = ();
799		980
800	local $override;	981	local $override;
801		982
802	for (@$callbacks) {	983	for (@$callbacks) {
803	eval { &{$_->[1]} };	984	eval { &{$_->[1]} };
…		…
812	}	993	}
813		994
814	0	995	0
815	}	996	}
816		997
817	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	998	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
818		999
819	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1000	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
820		1001
821	Generate an object-specific event with the given arguments.	1002	Generate an object-specific event with the given arguments.
822		1003
823	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1004	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
824	removed in future versions), and there is no public API to access override	1005	removed in future versions), and there is no public API to access override
825	results (if you must, access C<@cf::invoke_results> directly).	1006	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
826		1007
827	=back	1008	=back
828		1009
829	=cut	1010	=cut
830		1011
831	#############################################################################	1012	#############################################################################
832	# object support	1013	# object support
		1014
		1015	sub _object_equal($$);
		1016	sub _object_equal($$) {
		1017	my ($a, $b) = @_;
		1018
		1019	return 0 unless (ref $a) eq (ref $b);
		1020
		1021	if ("HASH" eq ref $a) {
		1022	my @ka = keys %$a;
		1023	my @kb = keys %$b;
		1024
		1025	return 0 if @ka != @kb;
		1026
		1027	for (0 .. $#ka) {
		1028	return 0 unless $ka[$_] eq $kb[$_];
		1029	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1030	}
		1031
		1032	} elsif ("ARRAY" eq ref $a) {
		1033
		1034	return 0 if @$a != @$b;
		1035
		1036	for (0 .. $#$a) {
		1037	return 0 unless _object_equal $a->[$_], $b->[$_];
		1038	}
		1039
		1040	} elsif ($a ne $b) {
		1041	return 0;
		1042	}
		1043
		1044	1
		1045	}
		1046
		1047	our $SLOW_MERGES;#d#
		1048	sub _can_merge {
		1049	my ($ob1, $ob2) = @_;
		1050
		1051	++$SLOW_MERGES;#d#
		1052
		1053	# we do the slow way here
		1054	return _object_equal $ob1, $ob2
		1055	}
833		1056
834	sub reattach {	1057	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	1058	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	1059	my ($obj) = @_;
		1060
		1061	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		1062
838	my $registry = $obj->registry;	1063	my $registry = $obj->registry;
839		1064
840	@$registry = ();	1065	@$registry = ();
841		1066
…		…
856	cf::attachable->attach (	1081	cf::attachable->attach (
857	prio => -1000000,	1082	prio => -1000000,
858	on_instantiate => sub {	1083	on_instantiate => sub {
859	my ($obj, $data) = @_;	1084	my ($obj, $data) = @_;
860		1085
861	$data = from_json $data;	1086	$data = decode_json $data;
862		1087
863	for (@$data) {	1088	for (@$data) {
864	my ($name, $args) = @$_;	1089	my ($name, $args) = @$_;
865		1090
866	$obj->attach ($name, %{$args || {} });	1091	$obj->attach ($name, %{$args || {} });
…		…
882	sub object_freezer_save {	1107	sub object_freezer_save {
883	my ($filename, $rdata, $objs) = @_;	1108	my ($filename, $rdata, $objs) = @_;
884		1109
885	sync_job {	1110	sync_job {
886	if (length $$rdata) {	1111	if (length $$rdata) {
		1112	utf8::decode (my $decname = $filename);
887	warn sprintf "saving %s (%d,%d)\n",	1113	warn sprintf "saving %s (%d,%d)\n",
888	$filename, length $$rdata, scalar @$objs;	1114	$decname, length $$rdata, scalar @$objs;
889		1115
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1116	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	1117	chmod SAVE_MODE, $fh;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1118	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
893	aio_fsync $fh;	1119	aio_fsync $fh if $cf::USE_FSYNC;
894	close $fh;	1120	close $fh;
895		1121
896	if (@$objs) {	1122	if (@$objs) {
897	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1123	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
898	chmod SAVE_MODE, $fh;	1124	chmod SAVE_MODE, $fh;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	1125	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	1126	aio_write $fh, 0, (length $data), $data, 0;
901	aio_fsync $fh;	1127	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	1128	close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	1129	aio_rename "$filename.pst~", "$filename.pst";
904	}	1130	}
905	} else {	1131	} else {
906	aio_unlink "$filename.pst";	1132	aio_unlink "$filename.pst";
…		…
912	}	1138	}
913	} else {	1139	} else {
914	aio_unlink $filename;	1140	aio_unlink $filename;
915	aio_unlink "$filename.pst";	1141	aio_unlink "$filename.pst";
916	}	1142	}
917	}	1143	};
918	}	1144	}
919		1145
920	sub object_freezer_as_string {	1146	sub object_freezer_as_string {
921	my ($rdata, $objs) = @_;	1147	my ($rdata, $objs) = @_;
922		1148
…		…
934	or return;	1160	or return;
935		1161
936	unless (aio_stat "$filename.pst") {	1162	unless (aio_stat "$filename.pst") {
937	(aio_load "$filename.pst", $av) >= 0	1163	(aio_load "$filename.pst", $av) >= 0
938	or return;	1164	or return;
		1165
939	$av = eval { (Storable::thaw $av)->{objs} };	1166	my $st = eval { Coro::Storable::thaw $av };
		1167	$av = $st->{objs};
940	}	1168	}
941		1169
		1170	utf8::decode (my $decname = $filename);
942	warn sprintf "loading %s (%d)\n",	1171	warn sprintf "loading %s (%d,%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1172	$decname, length $data, scalar @{$av || []};
		1173
944	return ($data, $av);	1174	($data, $av)
945	}	1175	}
		1176
		1177	=head2 COMMAND CALLBACKS
		1178
		1179	=over 4
		1180
		1181	=cut
946		1182
947	#############################################################################	1183	#############################################################################
948	# command handling &c	1184	# command handling &c
949		1185
950	=item cf::register_command $name => \&callback($ob,$args);	1186	=item cf::register_command $name => \&callback($ob,$args);
…		…
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1199	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1200	}
965		1201
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1202	=item cf::register_extcmd $name => \&callback($pl,$packet);
967		1203
968	Register a callbackf ro execution when the client sends an extcmd packet.	1204	Register a callback for execution when the client sends an (synchronous)
		1205	extcmd packet. Ext commands will be processed in the order they are
		1206	received by the server, like other user commands. The first argument is
		1207	the logged-in player. Ext commands can only be processed after a player
		1208	has logged in successfully.
969		1209
970	If the callback returns something, it is sent back as if reply was being	1210	If the callback returns something, it is sent back as if reply was being
971	called.	1211	called.
972		1212
		1213	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1214
		1215	Register a callback for execution when the client sends an (asynchronous)
		1216	exticmd packet. Exti commands are processed by the server as soon as they
		1217	are received, i.e. out of order w.r.t. other commands. The first argument
		1218	is a client socket. Exti commands can be received anytime, even before
		1219	log-in.
		1220
		1221	If the callback returns something, it is sent back as if reply was being
		1222	called.
		1223
973	=cut	1224	=cut
974		1225
975	sub register_extcmd {	1226	sub register_extcmd {
976	my ($name, $cb) = @_;	1227	my ($name, $cb) = @_;
977		1228
978	$EXTCMD{$name} = $cb;	1229	$EXTCMD{$name} = $cb;
		1230	}
		1231
		1232	sub register_exticmd {
		1233	my ($name, $cb) = @_;
		1234
		1235	$EXTICMD{$name} = $cb;
979	}	1236	}
980		1237
981	cf::player->attach (	1238	cf::player->attach (
982	on_command => sub {	1239	on_command => sub {
983	my ($pl, $name, $params) = @_;	1240	my ($pl, $name, $params) = @_;
…		…
992	cf::override;	1249	cf::override;
993	},	1250	},
994	on_extcmd => sub {	1251	on_extcmd => sub {
995	my ($pl, $buf) = @_;	1252	my ($pl, $buf) = @_;
996		1253
997	my $msg = eval { from_json $buf };	1254	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
998		1255
999	if (ref $msg) {	1256	if (ref $msg) {
		1257	my ($type, $reply, @payload) =
		1258	"ARRAY" eq ref $msg
		1259	? @$msg
		1260	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1261
		1262	my @reply;
		1263
1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1264	if (my $cb = $EXTCMD{$type}) {
1001	if (my %reply = $cb->($pl, $msg)) {	1265	@reply = $cb->($pl, @payload);
1002	$pl->ext_reply ($msg->{msgid}, %reply);
1003	}
1004	}	1266	}
		1267
		1268	$pl->ext_reply ($reply, @reply)
		1269	if $reply;
		1270
1005	} else {	1271	} else {
1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1272	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1007	}	1273	}
1008		1274
1009	cf::override;	1275	cf::override;
1010	},	1276	},
1011	);	1277	);
1012		1278
1013	sub load_extension {
1014	my ($path) = @_;
1015
1016	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1017	my $base = $1;
1018	my $pkg = $1;
1019	$pkg =~ s/[^[:word:]]/_/g;
1020	$pkg = "ext::$pkg";
1021
1022	warn "... loading '$path' into '$pkg'\n";
1023
1024	open my $fh, "<:utf8", $path
1025	or die "$path: $!";
1026
1027	my $source =
1028	"package $pkg; use strict; use utf8;\n"
1029	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })
1031	. "\n};\n1";
1032
1033	eval $source
1034	or die $@ ? "$path: $@\n"
1035	: "extension disabled.\n";
1036
1037	push @EXTS, $pkg;
1038	}
1039
1040	sub load_extensions {	1279	sub load_extensions {
		1280	cf::sync_job {
		1281	my %todo;
		1282
1041	for my $ext (<$LIBDIR/*.ext>) {	1283	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1284	next unless -r $path;
1043	eval {	1285
1044	load_extension $ext;	1286	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1287	my $base = $1;
		1288	my $pkg = $1;
		1289	$pkg =~ s/[^[:word:]]/_/g;
		1290	$pkg = "ext::$pkg";
		1291
		1292	open my $fh, "<:utf8", $path
		1293	or die "$path: $!";
		1294
		1295	my $source = do { local $/; <$fh> };
		1296
		1297	my %ext = (
		1298	path => $path,
		1299	base => $base,
		1300	pkg => $pkg,
		1301	);
		1302
		1303	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1304	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1305
		1306	$ext{source} =
		1307	"package $pkg; use strict; use utf8;\n"
		1308	. "#line 1 \"$path\"\n{\n"
		1309	. $source
		1310	. "\n};\n1";
		1311
		1312	$todo{$base} = \%ext;
		1313	}
		1314
		1315	my %done;
		1316	while (%todo) {
		1317	my $progress;
		1318
		1319	while (my ($k, $v) = each %todo) {
		1320	for (split /,\s*/, $v->{meta}{depends}) {
		1321	goto skip
		1322	unless exists $done{$_};
		1323	}
		1324
		1325	warn "... loading '$k' into '$v->{pkg}'\n";
		1326
		1327	unless (eval $v->{source}) {
		1328	my $msg = $@ ? "$v->{path}: $@\n"
		1329	: "$v->{base}: extension inactive.\n";
		1330
		1331	if (exists $v->{meta}{mandatory}) {
		1332	warn $msg;
		1333	cf::cleanup "mandatory extension failed to load, exiting.";
		1334	}
		1335
		1336	warn $msg;
		1337	}
		1338
		1339	$done{$k} = delete $todo{$k};
		1340	push @EXTS, $v->{pkg};
		1341	$progress = 1;
1045	1	1342	}
1046	} or warn "$ext not loaded: $@";	1343
		1344	skip:
		1345	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1346	unless $progress;
		1347	}
1047	}	1348	};
1048	}	1349	}
1049		1350
1050	#############################################################################	1351	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1352
1053	*cf::mapsupport::on_clean = sub {	1353	=back
1054	my ($map) = @_;
1055
1056	my $path = $map->tmpname;
1057	defined $path or return;
1058
1059	unlink "$path.pst";
1060	};
1061
1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1063
1064	#############################################################################
1065		1354
1066	=head2 CORE EXTENSIONS	1355	=head2 CORE EXTENSIONS
1067		1356
1068	Functions and methods that extend core crossfire objects.	1357	Functions and methods that extend core crossfire objects.
1069		1358
…		…
1075		1364
1076	=head3 cf::player	1365	=head3 cf::player
1077		1366
1078	=over 4	1367	=over 4
1079		1368
		1369	=item cf::player::num_playing
		1370
		1371	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1372
		1373	=cut
		1374
		1375	sub num_playing {
		1376	scalar grep
		1377	$_->ob->map
		1378	&& !$_->hidden
		1379	&& !$_->ob->flag (cf::FLAG_WIZ),
		1380	cf::player::list
		1381	}
		1382
1080	=item cf::player::find $login	1383	=item cf::player::find $login
1081		1384
1082	Returns the given player object, loading it if necessary (might block).	1385	Returns the given player object, loading it if necessary (might block).
1083		1386
1084	=cut	1387	=cut
1085		1388
1086	sub playerdir($) {	1389	sub playerdir($) {
1087	cf::localdir	1390	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1391	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1392	}
1093		1393
1094	sub path($) {	1394	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1395	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1396
1097	(playerdir $login) . "/$login.pl"	1397	(playerdir $login) . "/playerdata"
1098	}	1398	}
1099		1399
1100	sub find_active($) {	1400	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1401	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1402	and $cf::PLAYER{$_[0]}->active
…		…
1105		1405
1106	sub exists($) {	1406	sub exists($) {
1107	my ($login) = @_;	1407	my ($login) = @_;
1108		1408
1109	$cf::PLAYER{$login}	1409	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1410	or cf::sync_job { !aio_stat path $login }
1111	}	1411	}
1112		1412
1113	sub find($) {	1413	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1414	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1415	my $login = $_[0];
1116		1416
1117	my $guard = cf::lock_acquire "user_find:$login";	1417	my $guard = cf::lock_acquire "user_find:$login";
1118		1418
1119	$cf::PLAYER{$_[0]} || do {	1419	$cf::PLAYER{$_[0]} || do {
1120	my $pl = load_pl path $login	1420	# rename old playerfiles to new ones
		1421	#TODO: remove when no longer required
		1422	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1423	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1424	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1425	aio_unlink +(playerdir $login) . "/$login.pl";
		1426
		1427	my $f = new_from_file cf::object::thawer path $login
1121	or return;	1428	or return;
		1429
		1430	my $pl = cf::player::load_pl $f
		1431	or return;
		1432	local $cf::PLAYER_LOADING{$login} = $pl;
		1433	$f->resolve_delayed_derefs;
1122	$cf::PLAYER{$login} = $pl	1434	$cf::PLAYER{$login} = $pl
1123	}	1435	}
1124	}	1436	}
1125	}	1437	}
1126		1438
…		…
1136		1448
1137	aio_mkdir playerdir $pl, 0770;	1449	aio_mkdir playerdir $pl, 0770;
1138	$pl->{last_save} = $cf::RUNTIME;	1450	$pl->{last_save} = $cf::RUNTIME;
1139		1451
1140	$pl->save_pl ($path);	1452	$pl->save_pl ($path);
1141	Coro::cede;	1453	cf::cede_to_tick;
1142	}	1454	}
1143		1455
1144	sub new($) {	1456	sub new($) {
1145	my ($login) = @_;	1457	my ($login) = @_;
1146		1458
…		…
1152	$cf::PLAYER{$login} = $self;	1464	$cf::PLAYER{$login} = $self;
1153		1465
1154	$self	1466	$self
1155	}	1467	}
1156		1468
		1469	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1470
		1471	=cut
		1472
		1473	sub send_msg {
		1474	my $ns = shift->ns
		1475	or return;
		1476	$ns->send_msg (@_);
		1477	}
		1478
1157	=item $pl->quit_character	1479	=item $pl->quit_character
1158		1480
1159	Nukes the player without looking back. If logged in, the connection will	1481	Nukes the player without looking back. If logged in, the connection will
1160	be destroyed. May block for a long time.	1482	be destroyed. May block for a long time.
1161		1483
1162	=cut	1484	=cut
1163		1485
1164	sub quit_character {	1486	sub quit_character {
1165	my ($pl) = @_;	1487	my ($pl) = @_;
		1488
		1489	my $name = $pl->ob->name;
1166		1490
1167	$pl->{deny_save} = 1;	1491	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1492	$pl->password ("*"); # this should lock out the player until we nuked the dir
1169		1493
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1494	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1175	my $path = playerdir $pl;	1499	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1500	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1501	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1502	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1503	$pl->destroy;
		1504
		1505	my $prefix = qr<^~\Q$name\E/>;
		1506
		1507	# nuke player maps
		1508	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1509
1180	IO::AIO::aio_rmtree $temp;	1510	IO::AIO::aio_rmtree $temp;
		1511	}
		1512
		1513	=item $pl->kick
		1514
		1515	Kicks a player out of the game. This destroys the connection.
		1516
		1517	=cut
		1518
		1519	sub kick {
		1520	my ($pl, $kicker) = @_;
		1521
		1522	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1523	$pl->killer ("kicked");
		1524	$pl->ns->destroy;
1181	}	1525	}
1182		1526
1183	=item cf::player::list_logins	1527	=item cf::player::list_logins
1184		1528
1185	Returns am arrayref of all valid playernames in the system, can take a	1529	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1530	while and may block, so not sync_job-capable, ever.
1187		1531
1188	=cut	1532	=cut
1189		1533
1190	sub list_logins {	1534	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1535	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1536	or return [];
1193		1537
1194	my @logins;	1538	my @logins;
1195		1539
1196	for my $login (@$dirs) {	1540	for my $login (@$dirs) {
		1541	my $path = path $login;
		1542
		1543	# a .pst is a dead give-away for a valid player
		1544	unless (-e "$path.pst") {
1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1545	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1198	aio_read $fh, 0, 512, my $buf, 0 or next;	1546	aio_read $fh, 0, 512, my $buf, 0 or next;
1199	$buf !~ /^password -------------$/m or next; # official not-valid tag	1547	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1548	}
1200		1549
1201	utf8::decode $login;	1550	utf8::decode $login;
1202	push @logins, $login;	1551	push @logins, $login;
1203	}	1552	}
1204		1553
1205	\@logins	1554	\@logins
1206	}	1555	}
1207		1556
1208	=item $player->maps	1557	=item $player->maps
1209		1558
1210	Returns an arrayref of cf::path's of all maps that are private for this	1559	Returns an arrayref of map paths that are private for this
1211	player. May block.	1560	player. May block.
1212		1561
1213	=cut	1562	=cut
1214		1563
1215	sub maps($) {	1564	sub maps($) {
1216	my ($pl) = @_;	1565	my ($pl) = @_;
		1566
		1567	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1568
1218	my $files = aio_readdir playerdir $pl	1569	my $files = aio_readdir playerdir $pl
1219	or return;	1570	or return;
1220		1571
1221	my @paths;	1572	my @paths;
…		…
1223	for (@$files) {	1574	for (@$files) {
1224	utf8::decode $_;	1575	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1576	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1577	next unless /^$PATH_SEP/o;
1227		1578
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1579	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1580	}
1230		1581
1231	\@paths	1582	\@paths
1232	}	1583	}
1233		1584
		1585	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1586
		1587	Expand crossfire pod fragments into protocol xml.
		1588
		1589	=cut
		1590
		1591	use re 'eval';
		1592
		1593	my $group;
		1594	my $interior; $interior = qr{
		1595	# match a pod interior sequence sans C<< >>
		1596	(?:
		1597	\ (.*?)\ (?{ $group = $^N })
		1598	| < (??{$interior}) >
		1599	)
		1600	}x;
		1601
		1602	sub expand_cfpod {
		1603	my ($self, $pod) = @_;
		1604
		1605	my $xml;
		1606
		1607	while () {
		1608	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1609	$group = $1;
		1610
		1611	$group =~ s/&/&amp;/g;
		1612	$group =~ s/</&lt;/g;
		1613
		1614	$xml .= $group;
		1615	} elsif ($pod =~ m%\G
		1616	([BCGHITU])
		1617	<
		1618	(?:
		1619	([^<>]*) (?{ $group = $^N })
		1620	| < $interior >
		1621	)
		1622	>
		1623	%gcsx
		1624	) {
		1625	my ($code, $data) = ($1, $group);
		1626
		1627	if ($code eq "B") {
		1628	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1629	} elsif ($code eq "I") {
		1630	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1631	} elsif ($code eq "U") {
		1632	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1633	} elsif ($code eq "C") {
		1634	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1635	} elsif ($code eq "T") {
		1636	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1637	} elsif ($code eq "G") {
		1638	my ($male, $female) = split /\|/, $data;
		1639	$data = $self->gender ? $female : $male;
		1640	$xml .= expand_cfpod ($self, $data);
		1641	} elsif ($code eq "H") {
		1642	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1643	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1644	"")
		1645	[$self->{hintmode}];
		1646	} else {
		1647	$xml .= "error processing '$code($data)' directive";
		1648	}
		1649	} else {
		1650	if ($pod =~ /\G(.+)/) {
		1651	warn "parse error while expanding $pod (at $1)";
		1652	}
		1653	last;
		1654	}
		1655	}
		1656
		1657	for ($xml) {
		1658	# create single paragraphs (very hackish)
		1659	s/(?<=\S)\n(?=\w)/ /g;
		1660
		1661	# compress some whitespace
		1662	s/\s+\n/\n/g; # ws line-ends
		1663	s/\n\n+/\n/g; # double lines
		1664	s/^\n+//; # beginning lines
		1665	s/\n+$//; # ending lines
		1666	}
		1667
		1668	$xml
		1669	}
		1670
		1671	no re 'eval';
		1672
		1673	sub hintmode {
		1674	$_[0]{hintmode} = $_[1] if @_ > 1;
		1675	$_[0]{hintmode}
		1676	}
		1677
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1235		1679
1236	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1237		1681
1238	=cut	1682	=cut
1239		1683
1240	sub ext_reply($$$%) {	1684	sub ext_reply($$@) {
1241	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1242		1686
1243	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1244
1245	$self->send ("ext " . cf::to_json \%msg);
1246	}	1688	}
1247		1689
1248	package cf;	1690	=item $player->ext_msg ($type, @msg)
		1691
		1692	Sends an ext event to the client.
		1693
		1694	=cut
		1695
		1696	sub ext_msg($$@) {
		1697	my ($self, $type, @msg) = @_;
		1698
		1699	$self->ns->ext_msg ($type, @msg);
		1700	}
		1701
		1702	=head3 cf::region
		1703
		1704	=over 4
		1705
		1706	=cut
		1707
		1708	package cf::region;
		1709
		1710	=item cf::region::find_by_path $path
		1711
		1712	Tries to decuce the likely region for a map knowing only its path.
		1713
		1714	=cut
		1715
		1716	sub find_by_path($) {
		1717	my ($path) = @_;
		1718
		1719	my ($match, $specificity);
		1720
		1721	for my $region (list) {
		1722	if ($region->{match} && $path =~ $region->{match}) {
		1723	($match, $specificity) = ($region, $region->specificity)
		1724	if $region->specificity > $specificity;
		1725	}
		1726	}
		1727
		1728	$match
		1729	}
1249		1730
1250	=back	1731	=back
1251
1252		1732
1253	=head3 cf::map	1733	=head3 cf::map
1254		1734
1255	=over 4	1735	=over 4
1256		1736
…		…
1259	package cf::map;	1739	package cf::map;
1260		1740
1261	use Fcntl;	1741	use Fcntl;
1262	use Coro::AIO;	1742	use Coro::AIO;
1263		1743
		1744	use overload
		1745	'""' => \&as_string,
		1746	fallback => 1;
		1747
1264	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1266		1750
1267	sub generate_random_map {	1751	sub generate_random_map {
1268	my ($path, $rmp) = @_;	1752	my ($self, $rmp) = @_;
1269
1270	# mit "rum" bekleckern, nicht	1753	# mit "rum" bekleckern, nicht
1271	cf::map::_create_random_map (	1754	$self->_create_random_map (
1272	$path,
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1755	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1756	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1757	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1276	$rmp->{exit_on_final_map},	1758	$rmp->{exit_on_final_map},
1277	$rmp->{xsize}, $rmp->{ysize},	1759	$rmp->{xsize}, $rmp->{ysize},
…		…
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1764	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	1765	(cf::region::find $rmp->{region}), $rmp->{custom}
1284	)	1766	)
1285	}	1767	}
1286		1768
		1769	=item cf::map->register ($regex, $prio)
		1770
		1771	Register a handler for the map path matching the given regex at the
		1772	givne priority (higher is better, built-in handlers have priority 0, the
		1773	default).
		1774
		1775	=cut
		1776
		1777	sub register {
		1778	my (undef, $regex, $prio) = @_;
		1779	my $pkg = caller;
		1780
		1781	no strict;
		1782	push @{"$pkg\::ISA"}, __PACKAGE__;
		1783
		1784	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1785	}
		1786
		1787	# also paths starting with '/'
		1788	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1789
		1790	sub thawer_merge {
		1791	my ($self, $merge) = @_;
		1792
		1793	# we have to keep some variables in memory intact
		1794	local $self->{path};
		1795	local $self->{load_path};
		1796
		1797	$self->SUPER::thawer_merge ($merge);
		1798	}
		1799
		1800	sub normalise {
		1801	my ($path, $base) = @_;
		1802
		1803	$path = "$path"; # make sure its a string
		1804
		1805	$path =~ s/\.map$//;
		1806
		1807	# map plan:
		1808	#
		1809	# /! non-realised random map exit (special hack!)
		1810	# {... are special paths that are not being touched
		1811	# ?xxx/... are special absolute paths
		1812	# ?random/... random maps
		1813	# /... normal maps
		1814	# ~user/... per-player map of a specific user
		1815
		1816	$path =~ s/$PATH_SEP/\//go;
		1817
		1818	# treat it as relative path if it starts with
		1819	# something that looks reasonable
		1820	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1821	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1822
		1823	$base =~ s{[^/]+/?$}{};
		1824	$path = "$base/$path";
		1825	}
		1826
		1827	for ($path) {
		1828	redo if s{//}{/};
		1829	redo if s{/\.?/}{/};
		1830	redo if s{/[^/]+/\.\./}{/};
		1831	}
		1832
		1833	$path
		1834	}
		1835
		1836	sub new_from_path {
		1837	my (undef, $path, $base) = @_;
		1838
		1839	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1840
		1841	$path = normalise $path, $base;
		1842
		1843	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1844	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1845	my $self = bless cf::map::new, $pkg;
		1846	$self->{path} = $path; $self->path ($path);
		1847	$self->init; # pass $1 etc.
		1848	return $self;
		1849	}
		1850	}
		1851
		1852	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1853	()
		1854	}
		1855
		1856	sub init {
		1857	my ($self) = @_;
		1858
		1859	$self
		1860	}
		1861
		1862	sub as_string {
		1863	my ($self) = @_;
		1864
		1865	"$self->{path}"
		1866	}
		1867
		1868	# the displayed name, this is a one way mapping
		1869	sub visible_name {
		1870	&as_string
		1871	}
		1872
		1873	# the original (read-only) location
		1874	sub load_path {
		1875	my ($self) = @_;
		1876
		1877	"$MAPDIR/$self->{path}.map"
		1878	}
		1879
		1880	# the temporary/swap location
		1881	sub save_path {
		1882	my ($self) = @_;
		1883
		1884	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1885	"$TMPDIR/$path.map"
		1886	}
		1887
		1888	# the unique path, undef == no special unique path
		1889	sub uniq_path {
		1890	my ($self) = @_;
		1891
		1892	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1893	"$UNIQUEDIR/$path"
		1894	}
		1895
1287	# and all this just because we cannot iterate over	1896	# and all this just because we cannot iterate over
1288	# all maps in C++...	1897	# all maps in C++...
1289	sub change_all_map_light {	1898	sub change_all_map_light {
1290	my ($change) = @_;	1899	my ($change) = @_;
1291		1900
1292	$_->change_map_light ($change)	1901	$_->change_map_light ($change)
1293	for grep $_->outdoor, values %cf::MAP;	1902	for grep $_->outdoor, values %cf::MAP;
1294	}	1903	}
1295		1904
		1905	sub decay_objects {
		1906	my ($self) = @_;
		1907
		1908	return if $self->{deny_reset};
		1909
		1910	$self->do_decay_objects;
		1911	}
		1912
		1913	sub unlink_save {
		1914	my ($self) = @_;
		1915
		1916	utf8::encode (my $save = $self->save_path);
		1917	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1918	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1919	}
		1920
1296	sub load_map_header($) {	1921	sub load_header_from($) {
1297	my ($path) = @_;	1922	my ($self, $path) = @_;
1298		1923
1299	utf8::encode $path;	1924	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	1925	my $f = new_from_file cf::object::thawer $path
1301	or return;	1926	or return;
1302		1927
1303	my $map = cf::map::new	1928	$self->_load_header ($f)
1304	or return;	1929	or return;
1305		1930
1306	# for better error messages only, will be overwritten later	1931	local $MAP_LOADING{$self->{path}} = $self;
1307	$map->path ($path);	1932	$f->resolve_delayed_derefs;
1308		1933
1309	$map->load_header ($path)	1934	$self->{load_path} = $path;
		1935
		1936	1
		1937	}
		1938
		1939	sub load_header_orig {
		1940	my ($self) = @_;
		1941
		1942	$self->load_header_from ($self->load_path)
		1943	}
		1944
		1945	sub load_header_temp {
		1946	my ($self) = @_;
		1947
		1948	$self->load_header_from ($self->save_path)
		1949	}
		1950
		1951	sub prepare_temp {
		1952	my ($self) = @_;
		1953
		1954	$self->last_access ((delete $self->{last_access})
		1955	|| $cf::RUNTIME); #d#
		1956	# safety
		1957	$self->{instantiate_time} = $cf::RUNTIME
		1958	if $self->{instantiate_time} > $cf::RUNTIME;
		1959	}
		1960
		1961	sub prepare_orig {
		1962	my ($self) = @_;
		1963
		1964	$self->{load_original} = 1;
		1965	$self->{instantiate_time} = $cf::RUNTIME;
		1966	$self->last_access ($cf::RUNTIME);
		1967	$self->instantiate;
		1968	}
		1969
		1970	sub load_header {
		1971	my ($self) = @_;
		1972
		1973	if ($self->load_header_temp) {
		1974	$self->prepare_temp;
		1975	} else {
		1976	$self->load_header_orig
1310	or return;	1977	or return;
		1978	$self->prepare_orig;
		1979	}
1311		1980
1312	$map->{load_path} = $path;	1981	$self->{deny_reset} = 1
		1982	if $self->no_reset;
1313		1983
1314	$map	1984	$self->default_region (cf::region::find_by_path $self->{path})
		1985	unless $self->default_region;
		1986
		1987	1
1315	}	1988	}
1316		1989
1317	sub find;	1990	sub find;
1318	sub find {	1991	sub find {
1319	my ($path, $origin) = @_;	1992	my ($path, $origin) = @_;
1320		1993
1321	#warn "find<$path,$origin>\n";#d#
1322
1323	$path = new cf::path $path, $origin && $origin->path;	1994	$path = normalise $path, $origin && $origin->path;
1324	my $key = $path->as_string;
1325		1995
		1996	cf::lock_wait "map_data:$path";#d#remove
1326	cf::lock_wait "map_find:$key";	1997	cf::lock_wait "map_find:$path";
1327		1998
1328	$cf::MAP{$key} || do {	1999	$cf::MAP{$path} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	2000	my $guard1 = cf::lock_acquire "map_find:$path";
		2001	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1330		2002
1331	# do it the slow way	2003	my $map = new_from_path cf::map $path
1332	my $map = $path->load_temp;
1333
1334	Coro::cede;
1335
1336	if ($map) {
1337	$map->last_access ((delete $map->{last_access})
1338	|| $cf::RUNTIME); #d#
1339	# safety
1340	$map->{instantiate_time} = $cf::RUNTIME
1341	if $map->{instantiate_time} > $cf::RUNTIME;
1342	} else {
1343	$map = $path->load_orig
1344	or return;	2004	or return;
1345		2005
1346	$map->{load_original} = 1;
1347	$map->{instantiate_time} = $cf::RUNTIME;
1348	$map->last_access ($cf::RUNTIME);
1349	$map->instantiate;
1350
1351	# per-player maps become, after loading, normal maps
1352	$map->per_player (0) if $path->{user_rel};
1353	}
1354
1355	$map->path ($key);
1356	$map->{path} = $path;
1357	$map->{last_save} = $cf::RUNTIME;	2006	$map->{last_save} = $cf::RUNTIME;
1358		2007
1359	Coro::cede;	2008	$map->load_header
		2009	or return;
1360		2010
1361	if ($map->should_reset) {	2011	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2012	# doing this can freeze the server in a sync job, obviously
		2013	#$cf::WAIT_FOR_TICK->wait;
		2014	undef $guard1;
		2015	undef $guard2;
1362	$map->reset;	2016	$map->reset;
1363	undef $guard;
1364	$map = find $path	2017	return find $path;
1365	or return;
1366	}	2018	}
1367		2019
1368	$cf::MAP{$key} = $map	2020	$cf::MAP{$path} = $map
1369	}	2021	}
1370	}	2022	}
		2023
		2024	sub pre_load { }
		2025	sub post_load { }
1371		2026
1372	sub load {	2027	sub load {
1373	my ($self) = @_;	2028	my ($self) = @_;
1374		2029
		2030	local $self->{deny_reset} = 1; # loading can take a long time
		2031
1375	my $path = $self->{path};	2032	my $path = $self->{path};
		2033
		2034	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2035	my $guard = cf::lock_acquire "map_data:$path";
1377		2036
		2037	return unless $self->valid;
1378	return if $self->in_memory != cf::MAP_SWAPPED;	2038	return unless $self->in_memory == cf::MAP_SWAPPED;
1379		2039
1380	$self->in_memory (cf::MAP_LOADING);	2040	$self->in_memory (cf::MAP_LOADING);
1381		2041
1382	$self->alloc;	2042	$self->alloc;
1383	$self->load_objects ($self->{load_path}, 1)	2043
		2044	$self->pre_load;
		2045	cf::cede_to_tick;
		2046
		2047	my $f = new_from_file cf::object::thawer $self->{load_path};
		2048	$f->skip_block;
		2049	$self->_load_objects ($f)
1384	or return;	2050	or return;
1385		2051
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2052	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1387	if delete $self->{load_original};	2053	if delete $self->{load_original};
1388		2054
1389	if (my $uniq = $path->uniq_path) {	2055	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	2056	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	2057	unless (aio_stat $uniq) {
		2058	if (my $f = new_from_file cf::object::thawer $uniq) {
1392	$self->clear_unique_items;	2059	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	2060	$self->_load_objects ($f);
		2061	$f->resolve_delayed_derefs;
		2062	}
1394	}	2063	}
1395	}	2064	}
1396		2065
1397	Coro::cede;	2066	$f->resolve_delayed_derefs;
1398		2067
		2068	cf::cede_to_tick;
1399	# now do the right thing for maps	2069	# now do the right thing for maps
1400	$self->link_multipart_objects;	2070	$self->link_multipart_objects;
1401
1402	if ($self->{path}->is_style_map) {
1403	$self->{deny_save} = 1;
1404	$self->{deny_reset} = 1;
1405	} else {
1406	$self->fix_auto_apply;
1407	$self->decay_objects;
1408	$self->update_buttons;
1409	$self->set_darkness_map;
1410	$self->difficulty ($self->estimate_difficulty)	2071	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	2072	unless $self->difficulty;
		2073	cf::cede_to_tick;
		2074
		2075	unless ($self->{deny_activate}) {
		2076	$self->decay_objects;
		2077	$self->fix_auto_apply;
		2078	$self->update_buttons;
		2079	cf::cede_to_tick;
		2080	$self->set_darkness_map;
		2081	cf::cede_to_tick;
1412	$self->activate;	2082	$self->activate;
1413	}	2083	}
1414		2084
1415	Coro::cede;	2085	$self->{last_save} = $cf::RUNTIME;
		2086	$self->last_access ($cf::RUNTIME);
1416		2087
1417	$self->in_memory (cf::MAP_IN_MEMORY);	2088	$self->in_memory (cf::MAP_IN_MEMORY);
		2089	}
		2090
		2091	$self->post_load;
		2092	}
		2093
		2094	sub customise_for {
		2095	my ($self, $ob) = @_;
		2096
		2097	return find "~" . $ob->name . "/" . $self->{path}
		2098	if $self->per_player;
		2099
		2100	# return find "?party/" . $ob->name . "/" . $self->{path}
		2101	# if $self->per_party;
		2102
		2103	$self
1418	}	2104	}
1419		2105
1420	# find and load all maps in the 3x3 area around a map	2106	# find and load all maps in the 3x3 area around a map
1421	sub load_diag {	2107	sub load_neighbours {
1422	my ($map) = @_;	2108	my ($map) = @_;
1423		2109
1424	my @diag; # diagonal neighbours	2110	my @neigh; # diagonal neighbours
1425		2111
1426	for (0 .. 3) {	2112	for (0 .. 3) {
1427	my $neigh = $map->tile_path ($_)	2113	my $neigh = $map->tile_path ($_)
1428	or next;	2114	or next;
1429	$neigh = find $neigh, $map	2115	$neigh = find $neigh, $map
1430	or next;	2116	or next;
1431	$neigh->load;	2117	$neigh->load;
1432		2118
		2119	push @neigh,
1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2120	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2121	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1435	}	2122	}
1436		2123
1437	for (@diag) {	2124	for (grep defined $_->[0], @neigh) {
		2125	my ($path, $origin) = @$_;
1438	my $neigh = find @$_	2126	my $neigh = find $path, $origin
1439	or next;	2127	or next;
1440	$neigh->load;	2128	$neigh->load;
1441	}	2129	}
1442	}	2130	}
1443		2131
…		…
1448	}	2136	}
1449		2137
1450	sub do_load_sync {	2138	sub do_load_sync {
1451	my ($map) = @_;	2139	my ($map) = @_;
1452		2140
		2141	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2142	if $Coro::current == $Coro::main;
		2143
1453	cf::sync_job { $map->load };	2144	cf::sync_job { $map->load };
1454	}	2145	}
1455		2146
1456	our %MAP_PREFETCH;	2147	our %MAP_PREFETCH;
		2148	our $MAP_PREFETCHER = undef;
		2149
		2150	sub find_async {
		2151	my ($path, $origin, $load) = @_;
		2152
		2153	$path = normalise $path, $origin && $origin->{path};
		2154
		2155	if (my $map = $cf::MAP{$path}) {
		2156	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2157	}
		2158
		2159	$MAP_PREFETCH{$path} |= $load;
		2160
1457	our $MAP_PREFETCHER = Coro::async {	2161	$MAP_PREFETCHER ||= cf::async {
1458	while () {	2162	$Coro::current->{desc} = "map prefetcher";
		2163
1459	while (%MAP_PREFETCH) {	2164	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH	2165	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	or next;	2166	if (my $map = find $k) {
		2167	$map->load if $v;
		2168	}
		2169
1462	my $path = delete $MAP_PREFETCH{$key};	2170	delete $MAP_PREFETCH{$k};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}	2171	}
1468	Coro::schedule;	2172	}
		2173	undef $MAP_PREFETCHER;
1469	}	2174	};
1470	};
1471
1472	sub find_async {
1473	my ($path, $origin) = @_;
1474
1475	$path = new cf::path $path, $origin && $origin->path;
1476	my $key = $path->as_string;
1477
1478	if (my $map = $cf::MAP{$key}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}
1481
1482	$MAP_PREFETCH{$key} = $path;
1483	$MAP_PREFETCHER->ready;	2175	$MAP_PREFETCHER->prio (6);
1484		2176
1485	()	2177	()
1486	}	2178	}
1487		2179
1488	sub save {	2180	sub save {
1489	my ($self) = @_;	2181	my ($self) = @_;
1490		2182
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2183	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2184
1493	$self->{last_save} = $cf::RUNTIME;	2185	$self->{last_save} = $cf::RUNTIME;
1494		2186
1495	return unless $self->dirty;	2187	return unless $self->dirty;
1496		2188
1497	my $save = $self->{path}->save_path; utf8::encode $save;	2189	my $save = $self->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2190	my $uniq = $self->uniq_path; utf8::encode $uniq;
1499		2191
1500	$self->{load_path} = $save;	2192	$self->{load_path} = $save;
1501		2193
1502	return if $self->{deny_save};	2194	return if $self->{deny_save};
1503		2195
1504	local $self->{last_access} = $self->last_access;#d#	2196	local $self->{last_access} = $self->last_access;#d#
1505		2197
1506	cf::async {	2198	cf::async {
		2199	$Coro::current->{desc} = "map player save";
1507	$_->contr->save for $self->players;	2200	$_->contr->save for $self->players;
1508	};	2201	};
1509		2202
1510	if ($uniq) {	2203	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2204	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);	2205	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {	2206	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2207	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}	2208	}
1516	}	2209	}
1517		2210
1518	sub swap_out {	2211	sub swap_out {
1519	my ($self) = @_;	2212	my ($self) = @_;
1520		2213
1521	# save first because save cedes	2214	# save first because save cedes
1522	$self->save;	2215	$self->save;
1523		2216
1524	my $lock = cf::lock_acquire "map_data:" . $self->path;	2217	my $lock = cf::lock_acquire "map_data:$self->{path}";
1525		2218
1526	return if $self->players;	2219	return if $self->players;
1527	return if $self->in_memory != cf::MAP_IN_MEMORY;	2220	return if $self->in_memory != cf::MAP_IN_MEMORY;
1528	return if $self->{deny_save};	2221	return if $self->{deny_save};
1529		2222
		2223	$self->in_memory (cf::MAP_SWAPPED);
		2224
		2225	$self->deactivate;
		2226	$_->clear_links_to ($self) for values %cf::MAP;
1530	$self->clear;	2227	$self->clear;
1531	$self->in_memory (cf::MAP_SWAPPED);
1532	}	2228	}
1533		2229
1534	sub reset_at {	2230	sub reset_at {
1535	my ($self) = @_;	2231	my ($self) = @_;
1536		2232
1537	# TODO: safety, remove and allow resettable per-player maps	2233	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	2234	return 1e99 if $self->{deny_reset};
1540		2235
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2236	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2237	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		2238
…		…
1548	my ($self) = @_;	2243	my ($self) = @_;
1549		2244
1550	$self->reset_at <= $cf::RUNTIME	2245	$self->reset_at <= $cf::RUNTIME
1551	}	2246	}
1552		2247
1553	sub unlink_save {
1554	my ($self) = @_;
1555
1556	utf8::encode (my $save = $self->{path}->save_path);
1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1559	}
1560
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2248	sub reset {
1575	my ($self) = @_;	2249	my ($self) = @_;
1576		2250
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2251	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2252
1579	return if $self->players;	2253	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2254
1582	warn "resetting map ", $self->path;#d#	2255	warn "resetting map ", $self->path;
		2256
		2257	$self->in_memory (cf::MAP_SWAPPED);
		2258
		2259	# need to save uniques path
		2260	unless ($self->{deny_save}) {
		2261	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2262
		2263	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2264	if $uniq;
		2265	}
1583		2266
1584	delete $cf::MAP{$self->path};	2267	delete $cf::MAP{$self->path};
1585		2268
		2269	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2270	$_->clear_links_to ($self) for values %cf::MAP;
		2271	$self->clear;
1587		2272
1588	$self->unlink_save;	2273	$self->unlink_save;
1589	$self->destroy;	2274	$self->destroy;
1590	}	2275	}
1591		2276
1592	my $nuke_counter = "aaaa";	2277	my $nuke_counter = "aaaa";
1593		2278
1594	sub nuke {	2279	sub nuke {
1595	my ($self) = @_;	2280	my ($self) = @_;
1596		2281
		2282	{
		2283	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2284
		2285	delete $cf::MAP{$self->path};
		2286
		2287	$self->unlink_save;
		2288
		2289	bless $self, "cf::map";
		2290	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2291	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2292	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2293	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2294
		2295	$cf::MAP{$self->path} = $self;
		2296	}
		2297
1600	$self->reset; # polite request, might not happen	2298	$self->reset; # polite request, might not happen
1601	}	2299	}
1602		2300
1603	sub customise_for {	2301	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2302
1606	if ($map->per_player) {	2303	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2304	maps. May block.
		2305
		2306	=cut
		2307
		2308	sub tmp_maps() {
1608	}	2309	[
		2310	map {
		2311	utf8::decode $_;
		2312	/\.map$/
		2313	? normalise $_
		2314	: ()
		2315	} @{ aio_readdir $TMPDIR or [] }
		2316	]
		2317	}
1609		2318
1610	$map	2319	=item $maps = cf::map::random_maps
		2320
		2321	Returns an arrayref with all map paths of currently instantiated and saved
		2322	random maps. May block.
		2323
		2324	=cut
		2325
		2326	sub random_maps() {
		2327	[
		2328	map {
		2329	utf8::decode $_;
		2330	/\.map$/
		2331	? normalise "?random/$_"
		2332	: ()
		2333	} @{ aio_readdir $RANDOMDIR or [] }
		2334	]
1611	}	2335	}
1612		2336
1613	=item cf::map::unique_maps	2337	=item cf::map::unique_maps
1614		2338
1615	Returns an arrayref of cf::path's of all shared maps that have	2339	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2340	instantiated unique items. May block.
1617		2341
1618	=cut	2342	=cut
1619		2343
1620	sub unique_maps() {	2344	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2345	[
1622	or return;	2346	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2347	utf8::decode $_;
1628	next if /\.pst$/;	2348	/\.map$/
1629	next unless /^$PATH_SEP/o;	2349	? normalise $_
1630		2350	: ()
1631	push @paths, new cf::path $_;	2351	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2352	]
1633
1634	\@paths
1635	}	2353	}
1636		2354
1637	package cf;	2355	package cf;
1638		2356
1639	=back	2357	=back
…		…
1657	map { $_, inv_recursive_ $_->inv } @_	2375	map { $_, inv_recursive_ $_->inv } @_
1658	}	2376	}
1659		2377
1660	sub inv_recursive {	2378	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2379	inv_recursive_ inv $_[0]
		2380	}
		2381
		2382	=item $ref = $ob->ref
		2383
		2384	creates and returns a persistent reference to an objetc that can be stored as a string.
		2385
		2386	=item $ob = cf::object::deref ($refstring)
		2387
		2388	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2389	even if the object actually exists. May block.
		2390
		2391	=cut
		2392
		2393	sub deref {
		2394	my ($ref) = @_;
		2395
		2396	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2397	my ($uuid, $name) = ($1, $2);
		2398	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2399	or return;
		2400	$pl->ob->uuid eq $uuid
		2401	or return;
		2402
		2403	$pl->ob
		2404	} else {
		2405	warn "$ref: cannot resolve object reference\n";
		2406	undef
		2407	}
1662	}	2408	}
1663		2409
1664	package cf;	2410	package cf;
1665		2411
1666	=back	2412	=back
…		…
1685		2431
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2432	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2433
1688	if ($self->{record_replies}) {	2434	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2435	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2436
1690	} else {	2437	} else {
		2438	my $pl = $self->contr;
		2439
		2440	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2441	my $dialog = $pl->{npc_dialog};
		2442	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2443
		2444	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2445	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2446	$self->message ($msg, $flags);
		2447	}
1693	}	2448	}
		2449	}
		2450
		2451	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2452
		2453	=cut
		2454
		2455	sub cf::object::send_msg {
		2456	my $pl = shift->contr
		2457	or return;
		2458	$pl->send_msg (@_);
1694	}	2459	}
1695		2460
1696	=item $player_object->may ("access")	2461	=item $player_object->may ("access")
1697		2462
1698	Returns wether the given player is authorized to access resource "access"	2463	Returns wether the given player is authorized to access resource "access"
…		…
1711		2476
1712	=item $player_object->enter_link	2477	=item $player_object->enter_link
1713		2478
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2479	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2480
1716	The player should be reaosnably safe there for short amounts of time. You	2481	The player should be reasonably safe there for short amounts of time. You
1717	I<MUST> call C<leave_link> as soon as possible, though.	2482	I<MUST> call C<leave_link> as soon as possible, though.
1718		2483
		2484	Will never block.
		2485
1719	=item $player_object->leave_link ($map, $x, $y)	2486	=item $player_object->leave_link ($map, $x, $y)
1720		2487
1721	Moves the player out of the specila link map onto the given map. If the	2488	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2489	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2490	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2491	fails, to the emergency map position.
1725		2492
1726	Might block.	2493	Might block.
1727		2494
1728	=cut	2495	=cut
		2496
		2497	sub link_map {
		2498	unless ($LINK_MAP) {
		2499	$LINK_MAP = cf::map::find "{link}"
		2500	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2501	$LINK_MAP->load;
		2502	}
		2503
		2504	$LINK_MAP
		2505	}
1729		2506
1730	sub cf::object::player::enter_link {	2507	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2508	my ($self) = @_;
1732		2509
1733	$self->deactivate_recursive;	2510	$self->deactivate_recursive;
1734		2511
1735	return if $self->map == $LINK_MAP;	2512	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2513
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2514	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2515	if $self->map && $self->map->{path} ne "{link}";
1739		2516
1740	$self->enter_map ($LINK_MAP, 20, 20);	2517	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2518	}
1742		2519
1743	sub cf::object::player::leave_link {	2520	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2521	my ($self, $map, $x, $y) = @_;
		2522
		2523	return unless $self->contr->active;
1745		2524
1746	my $link_pos = delete $self->{_link_pos};	2525	my $link_pos = delete $self->{_link_pos};
1747		2526
1748	unless ($map) {	2527	unless ($map) {
1749	# restore original map position	2528	# restore original map position
…		…
1763	# use -1 or undef as default coordinates, not 0, 0	2542	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2543	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2544	if $x <=0 && $y <= 0;
1766		2545
1767	$map->load;	2546	$map->load;
1768	$map->load_diag;	2547	$map->load_neighbours;
1769		2548
1770	return unless $self->contr->active;	2549	return unless $self->contr->active;
1771	$self->activate_recursive;	2550	$self->activate_recursive;
		2551
		2552	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2553	$self->enter_map ($map, $x, $y);
1773	}	2554	}
1774		2555
1775	cf::player->attach (	2556	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2557
1779	# abort map switching before logout	2558	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2559	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2560	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2561	the new (success) or old (failed) map position. In either case, $done will
1783	};	2562	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2563
1789	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806
1807	=item $player_object->goto ($path, $x, $y)
1808
1809	=cut	2564	=cut
		2565
		2566	our $GOTOGEN;
1810		2567
1811	sub cf::object::player::goto {	2568	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2569	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2570
1814	$path = new cf::path $path;	2571	# do generation counting so two concurrent goto's will be executed in-order
		2572	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2573
1816	$self->enter_link;	2574	$self->enter_link;
1817		2575
1818	(async {	2576	(async {
1819	my $map = cf::map::find $path->as_string;	2577	$Coro::current->{desc} = "player::goto $path $x $y";
		2578
		2579	# *tag paths override both path and x|y
		2580	if ($path =~ /^\*(.*)$/) {
		2581	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2582	my $ob = $obs[rand @obs];
		2583
		2584	# see if we actually can go there
		2585	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2586	$ob = $obs[rand @obs];
		2587	} else {
		2588	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	}
		2590	# else put us there anyways for now #d#
		2591
		2592	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2593	} else {
		2594	($path, $x, $y) = (undef, undef, undef);
		2595	}
		2596	}
		2597
		2598	my $map = eval {
		2599	my $map = defined $path ? cf::map::find $path : undef;
		2600
		2601	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2602	$map = $map->customise_for ($self);
1821		2603	$map = $check->($map) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2604	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2605	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2606	}
1826		2607
		2608	$map
		2609	};
		2610
		2611	if ($@) {
		2612	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2613	LOG llevError | logBacktrace, Carp::longmess $@;
		2614	}
		2615
		2616	if ($gen == $self->{_goto_generation}) {
		2617	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2618	$self->leave_link ($map, $x, $y);
		2619	}
		2620
		2621	$done->() if $done;
1828	})->prio (1);	2622	})->prio (1);
1829	}	2623	}
1830		2624
1831	=item $player_object->enter_exit ($exit_object)	2625	=item $player_object->enter_exit ($exit_object)
1832		2626
…		…
1834		2628
1835	sub parse_random_map_params {	2629	sub parse_random_map_params {
1836	my ($spec) = @_;	2630	my ($spec) = @_;
1837		2631
1838	my $rmp = { # defaults	2632	my $rmp = { # defaults
1839	xsize => 10,	2633	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2634	ysize => (cf::rndm 15, 40),
		2635	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2636	#layout => string,
1841	};	2637	};
1842		2638
1843	for (split /\n/, $spec) {	2639	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2640	my ($k, $v) = split /\s+/, $_, 2;
1845		2641
…		…
1849	$rmp	2645	$rmp
1850	}	2646	}
1851		2647
1852	sub prepare_random_map {	2648	sub prepare_random_map {
1853	my ($exit) = @_;	2649	my ($exit) = @_;
		2650
		2651	my $guard = cf::lock_acquire "exit_prepare:$exit";
1854		2652
1855	# all this does is basically replace the /! path by	2653	# all this does is basically replace the /! path by
1856	# a new random map path (?random/...) with a seed	2654	# a new random map path (?random/...) with a seed
1857	# that depends on the exit object	2655	# that depends on the exit object
1858		2656
1859	my $rmp = parse_random_map_params $exit->msg;	2657	my $rmp = parse_random_map_params $exit->msg;
1860		2658
1861	if ($exit->map) {	2659	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2660	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2661	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2662	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2663	$rmp->{origin_y} = $exit->y;
1866	}	2664	}
1867		2665
1868	$rmp->{random_seed} ||= $exit->random_seed;	2666	$rmp->{random_seed} ||= $exit->random_seed;
1869		2667
1870	my $data = cf::to_json $rmp;	2668	my $data = cf::encode_json $rmp;
1871	my $md5 = Digest::MD5::md5_hex $data;	2669	my $md5 = Digest::MD5::md5_hex $data;
		2670	my $meta = "$RANDOMDIR/$md5.meta";
1872		2671
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2672	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2673	aio_write $fh, 0, (length $data), $data, 0;
		2674	undef $fh;
		2675	aio_rename "$meta~", $meta;
1875		2676
1876	$exit->slaying ("?random/$md5");	2677	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2678	$exit->msg (undef);
1878	}	2679	}
1879	}	2680	}
…		…
1881	sub cf::object::player::enter_exit {	2682	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2683	my ($self, $exit) = @_;
1883		2684
1884	return unless $self->type == cf::PLAYER;	2685	return unless $self->type == cf::PLAYER;
1885		2686
		2687	if ($exit->slaying eq "/!") {
		2688	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2689	# the problem is that $exit might not survive long enough
		2690	# so it needs to be done right now, right here
		2691	cf::sync_job { prepare_random_map $exit };
		2692	}
		2693
		2694	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2695	my $hp = $exit->stats->hp;
		2696	my $sp = $exit->stats->sp;
		2697
1886	$self->enter_link;	2698	$self->enter_link;
1887		2699
		2700	# if exit is damned, update players death & WoR home-position
		2701	$self->contr->savebed ($slaying, $hp, $sp)
		2702	if $exit->flag (FLAG_DAMNED);
		2703
1888	(async {	2704	(async {
		2705	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2706
1889	$self->deactivate_recursive; # just to be sure	2707	$self->deactivate_recursive; # just to be sure
1890	unless (eval {	2708	unless (eval {
1891	prepare_random_map $exit	2709	$self->goto ($slaying, $hp, $sp);
1892	if $exit->slaying eq "/!";
1893
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1896		2710
1897	1;	2711	1;
1898	}) {	2712	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2713	$self->message ("Something went wrong deep within the crossfire server. "
1900	. "I'll try to bring you back to the map you were before. "	2714	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2715	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2716	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2717
1904	warn "ERROR in enter_exit: $@";	2718	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2719	$self->leave_link;
1906	}	2720	}
1907	})->prio (1);	2721	})->prio (1);
…		…
1920		2734
1921	sub cf::client::send_drawinfo {	2735	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2736	my ($self, $text, $flags) = @_;
1923		2737
1924	utf8::encode $text;	2738	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2739	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2740	}
1927		2741
		2742	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2743
		2744	Send a drawinfo or msg packet to the client, formatting the msg for the
		2745	client if neccessary. C<$type> should be a string identifying the type of
		2746	the message, with C<log> being the default. If C<$color> is negative, suppress
		2747	the message unless the client supports the msg packet.
		2748
		2749	=cut
		2750
		2751	# non-persistent channels (usually the info channel)
		2752	our %CHANNEL = (
		2753	"c/identify" => {
		2754	id => "infobox",
		2755	title => "Identify",
		2756	reply => undef,
		2757	tooltip => "Items recently identified",
		2758	},
		2759	"c/examine" => {
		2760	id => "infobox",
		2761	title => "Examine",
		2762	reply => undef,
		2763	tooltip => "Signs and other items you examined",
		2764	},
		2765	"c/book" => {
		2766	id => "infobox",
		2767	title => "Book",
		2768	reply => undef,
		2769	tooltip => "The contents of a note or book",
		2770	},
		2771	"c/lookat" => {
		2772	id => "infobox",
		2773	title => "Look",
		2774	reply => undef,
		2775	tooltip => "What you saw there",
		2776	},
		2777	"c/who" => {
		2778	id => "infobox",
		2779	title => "Players",
		2780	reply => undef,
		2781	tooltip => "Shows players who are currently online",
		2782	},
		2783	"c/body" => {
		2784	id => "infobox",
		2785	title => "Body Parts",
		2786	reply => undef,
		2787	tooltip => "Shows which body parts you posess and are available",
		2788	},
		2789	"c/uptime" => {
		2790	id => "infobox",
		2791	title => "Uptime",
		2792	reply => undef,
		2793	tooltip => "How long the server has been running since last restart",
		2794	},
		2795	"c/mapinfo" => {
		2796	id => "infobox",
		2797	title => "Map Info",
		2798	reply => undef,
		2799	tooltip => "Information related to the maps",
		2800	},
		2801	);
		2802
		2803	sub cf::client::send_msg {
		2804	my ($self, $channel, $msg, $color, @extra) = @_;
		2805
		2806	$msg = $self->pl->expand_cfpod ($msg);
		2807
		2808	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2809
		2810	# check predefined channels, for the benefit of C
		2811	if ($CHANNEL{$channel}) {
		2812	$channel = $CHANNEL{$channel};
		2813
		2814	$self->ext_msg (channel_info => $channel)
		2815	if $self->can_msg;
		2816
		2817	$channel = $channel->{id};
		2818
		2819	} elsif (ref $channel) {
		2820	# send meta info to client, if not yet sent
		2821	unless (exists $self->{channel}{$channel->{id}}) {
		2822	$self->{channel}{$channel->{id}} = $channel;
		2823	$self->ext_msg (channel_info => $channel)
		2824	if $self->can_msg;
		2825	}
		2826
		2827	$channel = $channel->{id};
		2828	}
		2829
		2830	return unless @extra || length $msg;
		2831
		2832	if ($self->can_msg) {
		2833	# default colour, mask it out
		2834	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2835	if $color & cf::NDI_DEF;
		2836
		2837	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2838	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2839	} else {
		2840	if ($color >= 0) {
		2841	# replace some tags by gcfclient-compatible ones
		2842	for ($msg) {
		2843	1 while
		2844	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2845	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2846	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2847	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2848	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2849	}
		2850
		2851	$color &= cf::NDI_COLOR_MASK;
		2852
		2853	utf8::encode $msg;
		2854
		2855	if (0 && $msg =~ /\[/) {
		2856	# COMMAND/INFO
		2857	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2858	} else {
		2859	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2860	$self->send_packet ("drawinfo $color $msg")
		2861	}
		2862	}
		2863	}
		2864	}
		2865
		2866	=item $client->ext_msg ($type, @msg)
		2867
		2868	Sends an ext event to the client.
		2869
		2870	=cut
		2871
		2872	sub cf::client::ext_msg($$@) {
		2873	my ($self, $type, @msg) = @_;
		2874
		2875	if ($self->extcmd == 2) {
		2876	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2877	} elsif ($self->extcmd == 1) { # TODO: remove
		2878	push @msg, msgtype => "event_$type";
		2879	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2880	}
		2881	}
		2882
		2883	=item $client->ext_reply ($msgid, @msg)
		2884
		2885	Sends an ext reply to the client.
		2886
		2887	=cut
		2888
		2889	sub cf::client::ext_reply($$@) {
		2890	my ($self, $id, @msg) = @_;
		2891
		2892	if ($self->extcmd == 2) {
		2893	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2894	} elsif ($self->extcmd == 1) {
		2895	#TODO: version 1, remove
		2896	unshift @msg, msgtype => "reply", msgid => $id;
		2897	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2898	}
		2899	}
1928		2900
1929	=item $success = $client->query ($flags, "text", \&cb)	2901	=item $success = $client->query ($flags, "text", \&cb)
1930		2902
1931	Queues a query to the client, calling the given callback with	2903	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2904	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2905	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		2906
1935	Queries can fail, so check the return code. Or don't, as queries will become	2907	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	2908	become reliable at some point in the future.
1937		2909
1938	=cut	2910	=cut
1939		2911
1940	sub cf::client::query {	2912	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	2913	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	2921	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2922	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		2923
1952	$self->send_packet ($self->{query_queue}[0][0])	2924	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	2925	if @{ $self->{query_queue} } == 1;
		2926
		2927	1
1954	}	2928	}
1955		2929
1956	cf::client->attach (	2930	cf::client->attach (
		2931	on_connect => sub {
		2932	my ($ns) = @_;
		2933
		2934	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2935	},
1957	on_reply => sub {	2936	on_reply => sub {
1958	my ($ns, $msg) = @_;	2937	my ($ns, $msg) = @_;
1959		2938
1960	# this weird shuffling is so that direct followup queries	2939	# this weird shuffling is so that direct followup queries
1961	# get handled first	2940	# get handled first
1962	my $queue = delete $ns->{query_queue}	2941	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	2942	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		2943
1965	(shift @$queue)->[1]->($msg);	2944	(shift @$queue)->[1]->($msg);
		2945	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		2946
1967	push @{ $ns->{query_queue} }, @$queue;	2947	push @{ $ns->{query_queue} }, @$queue;
1968		2948
1969	if (@{ $ns->{query_queue} } == @$queue) {	2949	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	2950	if (@$queue) {
…		…
1972	} else {	2952	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2953	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	2954	}
1975	}	2955	}
1976	},	2956	},
		2957	on_exticmd => sub {
		2958	my ($ns, $buf) = @_;
		2959
		2960	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2961
		2962	if (ref $msg) {
		2963	my ($type, $reply, @payload) =
		2964	"ARRAY" eq ref $msg
		2965	? @$msg
		2966	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2967
		2968	my @reply;
		2969
		2970	if (my $cb = $EXTICMD{$type}) {
		2971	@reply = $cb->($ns, @payload);
		2972	}
		2973
		2974	$ns->ext_reply ($reply, @reply)
		2975	if $reply;
		2976
		2977	} else {
		2978	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2979	}
		2980
		2981	cf::override;
		2982	},
1977	);	2983	);
1978		2984
1979	=item $client->async (\&cb)	2985	=item $client->async (\&cb)
1980		2986
1981	Create a new coroutine, running the specified callback. The coroutine will	2987	Create a new coroutine, running the specified callback. The coroutine will
…		…
2022	our $safe = new Safe "safe";	3028	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	3029	our $safe_hole = new Safe::Hole;
2024		3030
2025	$SIG{FPE} = 'IGNORE';	3031	$SIG{FPE} = 'IGNORE';
2026		3032
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3033	$safe->permit_only (Opcode::opset qw(
		3034	:base_core :base_mem :base_orig :base_math
		3035	grepstart grepwhile mapstart mapwhile
		3036	sort time
		3037	));
2028		3038
2029	# here we export the classes and methods available to script code	3039	# here we export the classes and methods available to script code
2030		3040
2031	=pod	3041	=pod
2032		3042
2033	The following fucntions and emthods are available within a safe environment:	3043	The following functions and methods are available within a safe environment:
2034		3044
2035	cf::object contr pay_amount pay_player map	3045	cf::object
		3046	contr pay_amount pay_player map x y force_find force_add destroy
		3047	insert remove name archname title slaying race decrease_ob_nr
		3048
2036	cf::object::player player	3049	cf::object::player
2037	cf::player peaceful	3050	player
2038	cf::map trigger	3051
		3052	cf::player
		3053	peaceful
		3054
		3055	cf::map
		3056	trigger
2039		3057
2040	=cut	3058	=cut
2041		3059
2042	for (	3060	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	3061	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3062	insert remove inv name archname title slaying race
		3063	decrease_ob_nr destroy)],
2044	["cf::object::player" => qw(player)],	3064	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	3065	["cf::player" => qw(peaceful)],
2046	["cf::map" => qw(trigger)],	3066	["cf::map" => qw(trigger)],
2047	) {	3067	) {
2048	no strict 'refs';	3068	no strict 'refs';
…		…
2119	=back	3139	=back
2120		3140
2121	=cut	3141	=cut
2122		3142
2123	#############################################################################	3143	#############################################################################
		3144	# the server's init and main functions
2124		3145
2125	=head2 EXTENSION DATABASE SUPPORT	3146	sub load_facedata($) {
		3147	my ($path) = @_;
2126		3148
2127	Crossfire maintains a very simple database for extension use. It can	3149	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	3150	# for this (global event?)
2129	excludes objects.	3151	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		3152
2131	The parameter C<$family> should best start with the name of the extension	3153	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		3154
2134	=over 4	3155	warn "loading facedata from $path\n";
2135		3156
2136	=item $hashref = cf::db_get $family	3157	my $facedata;
		3158	0 < aio_load $path, $facedata
		3159	or die "$path: $!";
2137		3160
2138	Return a hashref for use by the extension C<$family>, which can be	3161	$facedata = Coro::Storable::thaw $facedata;
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141		3162
2142	=item $value = cf::db_get $family => $key	3163	$facedata->{version} == 2
		3164	or cf::cleanup "$path: version mismatch, cannot proceed.";
2143		3165
2144	Returns a single value from the database	3166	# patch in the exptable
2145		3167	$facedata->{resource}{"res/exp_table"} = {
2146	=item cf::db_put $family => $hashref	3168	type => FT_RSRC,
2147		3169	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}
2174
2175	my $pid;
2176
2177	sub db_save() {
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	3170	};
		3171	cf::cede_to_tick;
2197		3172
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3173	{
		3174	my $faces = $facedata->{faceinfo};
2202		3175
2203	sub db_get($;$) {	3176	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3177	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208		3178
2209	sub db_put($$;$) {	3179	cf::face::set_visibility $idx, $info->{visibility};
2210	if (@_ >= 3) {	3180	cf::face::set_magicmap $idx, $info->{magicmap};
2211	$DB->{$_[0]}{$_[1]} = $_[2];	3181	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2212	} else {	3182	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217		3183
2218	cf::global->attach (	3184	cf::cede_to_tick;
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	3185	}
2223	);
2224	}
2225		3186
2226	#############################################################################	3187	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3188	next unless $info->{smooth};
2228		3189
2229	sub cfg_load {	3190	my $idx = cf::face::find $face
		3191	or next;
		3192
		3193	if (my $smooth = cf::face::find $info->{smooth}) {
		3194	cf::face::set_smooth $idx, $smooth;
		3195	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3196	} else {
		3197	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3198	}
		3199
		3200	cf::cede_to_tick;
		3201	}
		3202	}
		3203
		3204	{
		3205	my $anims = $facedata->{animinfo};
		3206
		3207	while (my ($anim, $info) = each %$anims) {
		3208	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3209	cf::cede_to_tick;
		3210	}
		3211
		3212	cf::anim::invalidate_all; # d'oh
		3213	}
		3214
		3215	{
		3216	# TODO: for gcfclient pleasure, we should give resources
		3217	# that gcfclient doesn't grok a >10000 face index.
		3218	my $res = $facedata->{resource};
		3219
		3220	while (my ($name, $info) = each %$res) {
		3221	if (defined $info->{type}) {
		3222	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3223	my $data;
		3224
		3225	if ($info->{type} & 1) {
		3226	# prepend meta info
		3227
		3228	my $meta = $enc->encode ({
		3229	name => $name,
		3230	%{ $info->{meta} || {} },
		3231	});
		3232
		3233	$data = pack "(w/a*)*", $meta, $info->{data};
		3234	} else {
		3235	$data = $info->{data};
		3236	}
		3237
		3238	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3239	cf::face::set_type $idx, $info->{type};
		3240	} else {
		3241	$RESOURCE{$name} = $info;
		3242	}
		3243
		3244	cf::cede_to_tick;
		3245	}
		3246	}
		3247
		3248	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3249
		3250	1
		3251	}
		3252
		3253	cf::global->attach (on_resource_update => sub {
		3254	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3255	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3256
		3257	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3258	my $sound = $soundconf->{compat}[$_]
		3259	or next;
		3260
		3261	my $face = cf::face::find "sound/$sound->[1]";
		3262	cf::sound::set $sound->[0] => $face;
		3263	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3264	}
		3265
		3266	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3267	my $face = cf::face::find "sound/$v";
		3268	cf::sound::set $k => $face;
		3269	}
		3270	}
		3271	});
		3272
		3273	register_exticmd fx_want => sub {
		3274	my ($ns, $want) = @_;
		3275
		3276	while (my ($k, $v) = each %$want) {
		3277	$ns->fx_want ($k, $v);
		3278	}
		3279	};
		3280
		3281	sub reload_regions {
		3282	# HACK to clear player env face cache, we need some signal framework
		3283	# for this (global event?)
		3284	%ext::player_env::MUSIC_FACE_CACHE = ();
		3285
		3286	load_resource_file "$MAPDIR/regions"
		3287	or die "unable to load regions file\n";
		3288
		3289	for (cf::region::list) {
		3290	$_->{match} = qr/$_->{match}/
		3291	if exists $_->{match};
		3292	}
		3293	}
		3294
		3295	sub reload_facedata {
		3296	load_facedata "$DATADIR/facedata"
		3297	or die "unable to load facedata\n";
		3298	}
		3299
		3300	sub reload_archetypes {
		3301	load_resource_file "$DATADIR/archetypes"
		3302	or die "unable to load archetypes\n";
		3303	#d# NEED to laod twice to resolve forward references
		3304	# this really needs to be done in an extra post-pass
		3305	# (which needs to be synchronous, so solve it differently)
		3306	load_resource_file "$DATADIR/archetypes"
		3307	or die "unable to load archetypes\n";
		3308	}
		3309
		3310	sub reload_treasures {
		3311	load_resource_file "$DATADIR/treasures"
		3312	or die "unable to load treasurelists\n";
		3313	}
		3314
		3315	sub reload_resources {
		3316	warn "reloading resource files...\n";
		3317
		3318	reload_regions;
		3319	reload_facedata;
		3320	#reload_archetypes;#d#
		3321	reload_archetypes;
		3322	reload_treasures;
		3323
		3324	warn "finished reloading resource files\n";
		3325	}
		3326
		3327	sub init {
		3328	reload_resources;
		3329	}
		3330
		3331	sub reload_config {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3332	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	3333	or return;
2232		3334
2233	local $/;	3335	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	3336	*CFG = YAML::Load <$fh>;
2235		3337
2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3338	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2237		3339
2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3340	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2239	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3341	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2249		3351
2250	sub main {	3352	sub main {
2251	# we must not ever block the main coroutine	3353	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3354	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3355	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2254	async { Event::one_event };	3356	(async {
		3357	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3358	EV::loop EV::LOOP_ONESHOT;
		3359	})->prio (Coro::PRIO_MAX);
2255	};	3360	};
2256		3361
2257	cfg_load;	3362	reload_config;
2258	db_load;	3363	db_init;
2259	load_extensions;	3364	load_extensions;
		3365
		3366	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3367	evthread_start;
2260	Event::loop;	3368	EV::loop;
2261	}	3369	}
2262		3370
2263	#############################################################################	3371	#############################################################################
2264	# initialisation and cleanup	3372	# initialisation and cleanup
2265		3373
2266	# install some emergency cleanup handlers	3374	# install some emergency cleanup handlers
2267	BEGIN {	3375	BEGIN {
		3376	our %SIGWATCHER = ();
2268	for my $signal (qw(INT HUP TERM)) {	3377	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3378	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2270	data => WF_AUTOCANCEL,
2271	signal => $signal,
2272	cb => sub {
2273	cf::cleanup "SIG$signal";	3379	cf::cleanup "SIG$signal";
2274	},
2275	);	3380	};
		3381	}
		3382	}
		3383
		3384	sub write_runtime {
		3385	my $runtime = "$LOCALDIR/runtime";
		3386
		3387	# first touch the runtime file to show we are still running:
		3388	# the fsync below can take a very very long time.
		3389
		3390	IO::AIO::aio_utime $runtime, undef, undef;
		3391
		3392	my $guard = cf::lock_acquire "write_runtime";
		3393
		3394	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3395	or return;
		3396
		3397	my $value = $cf::RUNTIME + 90 + 10;
		3398	# 10 is the runtime save interval, for a monotonic clock
		3399	# 60 allows for the watchdog to kill the server.
		3400
		3401	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3402	and return;
		3403
		3404	# always fsync - this file is important
		3405	aio_fsync $fh
		3406	and return;
		3407
		3408	# touch it again to show we are up-to-date
		3409	aio_utime $fh, undef, undef;
		3410
		3411	close $fh
		3412	or return;
		3413
		3414	aio_rename "$runtime~", $runtime
		3415	and return;
		3416
		3417	warn "runtime file written.\n";
		3418
2276	}	3419	1
2277	}	3420	}
2278		3421
2279	sub emergency_save() {	3422	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3423	my $freeze_guard = cf::freeze_mainloop;
2281		3424
2282	warn "enter emergency perl save\n";	3425	warn "enter emergency perl save\n";
2283		3426
2284	cf::sync_job {	3427	cf::sync_job {
2285	# use a peculiar iteration method to avoid tripping on perl	3428	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3429	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3430	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3431	warn "begin emergency player save\n";
2289	for my $login (keys %cf::PLAYER) {	3432	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3433	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3434	$pl->valid or next;
		3435	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2292	$pl->save;	3436	$pl->save;
2293	}	3437	}
2294	warn "end emergency player save\n";	3438	warn "end emergency player save\n";
2295		3439
2296	warn "begin emergency map save\n";	3440	warn "begin emergency map save\n";
…		…
2298	my $map = $cf::MAP{$path} or next;	3442	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3443	$map->valid or next;
2300	$map->save;	3444	$map->save;
2301	}	3445	}
2302	warn "end emergency map save\n";	3446	warn "end emergency map save\n";
		3447
		3448	warn "begin emergency database checkpoint\n";
		3449	BDB::db_env_txn_checkpoint $DB_ENV;
		3450	warn "end emergency database checkpoint\n";
2303	};	3451	};
2304		3452
2305	warn "leave emergency perl save\n";	3453	warn "leave emergency perl save\n";
2306	}	3454	}
2307		3455
		3456	sub post_cleanup {
		3457	my ($make_core) = @_;
		3458
		3459	warn Carp::longmess "post_cleanup backtrace"
		3460	if $make_core;
		3461	}
		3462
2308	sub reload() {	3463	sub do_reload_perl() {
2309	# can/must only be called in main	3464	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3465	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	3466	warn "can only reload from main coroutine";
2312	return;	3467	return;
2313	}	3468	}
2314		3469
2315	warn "reloading...";	3470	warn "reloading...";
2316		3471
2317	warn "freezing server";	3472	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	3473
		3474	cf::sync_job {
		3475	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	3476	cf::emergency_save;
		3477	cf::write_runtime; # external watchdog should not bark
2320		3478
2321	warn "sync database to disk";	3479	warn "syncing database to disk";
2322	cf::db_sync;	3480	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		3481
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	3482	# if anything goes wrong in here, we should simply crash as we already saved
2327		3483
2328	warn "cancel all watchers";	3484	warn "flushing outstanding aio requests";
2329	for (Event::all_watchers) {	3485	for (;;) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	3486	BDB::flush;
		3487	IO::AIO::flush;
		3488	Coro::cede_notself;
		3489	last unless IO::AIO::nreqs || BDB::nreqs;
		3490	warn "iterate...";
2331	}	3491	}
2332		3492
		3493	++$RELOAD;
		3494
2333	warn "cancel all extension coros";	3495	warn "cancelling all extension coros";
2334	$_->cancel for values %EXT_CORO;	3496	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	3497	%EXT_CORO = ();
2336		3498
2337	warn "remove commands";	3499	warn "removing commands";
2338	%COMMAND = ();	3500	%COMMAND = ();
2339		3501
2340	warn "remove ext commands";	3502	warn "removing ext/exti commands";
2341	%EXTCMD = ();	3503	%EXTCMD = ();
		3504	%EXTICMD = ();
2342		3505
2343	warn "unload/nuke all extensions";	3506	warn "unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	3507	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	3508	warn "... unloading $pkg";
2346		3509
2347	if (my $cb = $pkg->can ("unload")) {	3510	if (my $cb = $pkg->can ("unload")) {
2348	eval {	3511	eval {
…		…
2353		3516
2354	warn "... nuking $pkg";	3517	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;	3518	Symbol::delete_package $pkg;
2356	}	3519	}
2357		3520
2358	warn "unload all perl modules loaded from $LIBDIR";	3521	warn "unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	3522	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3523	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		3524
2362	warn "removing <$k>";	3525	warn "... unloading $k";
2363	delete $INC{$k};	3526	delete $INC{$k};
2364		3527
2365	$k =~ s/\.pm$//;	3528	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	3529	$k =~ s/\//::/g;
2367		3530
…		…
2370	}	3533	}
2371		3534
2372	Symbol::delete_package $k;	3535	Symbol::delete_package $k;
2373	}	3536	}
2374		3537
2375	warn "get rid of safe::, as good as possible";	3538	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	3539	Symbol::delete_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3540	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		3541
2379	warn "unload cf.pm \"a bit\"";	3542	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	3543	delete $INC{"cf.pm"};
		3544	delete $INC{"cf/pod.pm"};
2381		3545
2382	# don't, removes xs symbols, too,	3546	# don't, removes xs symbols, too,
2383	# and global variables created in xs	3547	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	3548	#Symbol::delete_package __PACKAGE__;
2385		3549
		3550	warn "unload completed, starting to reload now";
		3551
2386	warn "reloading cf.pm";	3552	warn "reloading cf.pm";
2387	require cf;	3553	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3554	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		3555
2390	warn "load config and database again";	3556	warn "loading config and database again";
2391	cf::cfg_load;	3557	cf::reload_config;
2392	cf::db_load;
2393		3558
2394	warn "load extensions";	3559	warn "loading extensions";
2395	cf::load_extensions;	3560	cf::load_extensions;
2396		3561
2397	warn "reattach attachments to objects/players";	3562	warn "reattaching attachments to objects/players";
2398	_global_reattach;	3563	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	3564	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	3565	reattach $_ for values %MAP;
		3566	warn "reattaching attachments to players";
		3567	reattach $_ for values %PLAYER;
		3568
		3569	warn "leaving sync_job";
		3570
		3571	1
		3572	} or do {
		3573	warn $@;
		3574	cf::cleanup "error while reloading, exiting.";
2401	};	3575	};
2402
2403	if ($@) {
2404	warn $@;
2405	warn "error while reloading, exiting.";
2406	exit 1;
2407	}
2408		3576
2409	warn "reloaded";	3577	warn "reloaded";
2410	};	3578	};
2411		3579
2412	#############################################################################	3580	our $RELOAD_WATCHER; # used only during reload
2413		3581
2414	unless ($LINK_MAP) {	3582	sub reload_perl() {
2415	$LINK_MAP = cf::map::new;	3583	# doing reload synchronously and two reloads happen back-to-back,
		3584	# coro crashes during coro_state_free->destroy here.
2416		3585
2417	$LINK_MAP->width (41);	3586	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2418	$LINK_MAP->height (41);	3587	do_reload_perl;
2419	$LINK_MAP->alloc;	3588	undef $RELOAD_WATCHER;
2420	$LINK_MAP->path ("{link}");	3589	};
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,
2427	cb => sub {
2428	$_[0]->w->cancel;
2429
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});
2448
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	3590	}
2454		3591
2455	register_command "reload" => sub {	3592	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3593	my ($who, $arg) = @_;
2457		3594
2458	if ($who->flag (FLAG_WIZ)) {	3595	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	3596	$who->message ("reloading server.");
		3597	async {
		3598	$Coro::current->{desc} = "perl_reload";
		3599	reload_perl;
		3600	};
2462	}	3601	}
2463	};	3602	};
2464		3603
2465	unshift @INC, $LIBDIR;	3604	unshift @INC, $LIBDIR;
2466		3605
2467	$TICK_WATCHER = Event->timer (	3606	my $bug_warning = 0;
2468	reentrant => 0,
2469	prio => 0,
2470	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,
2472	cb => sub {
2473	$NOW = Event::time;
2474		3607
		3608	our @WAIT_FOR_TICK;
		3609	our @WAIT_FOR_TICK_BEGIN;
		3610
		3611	sub wait_for_tick {
		3612	return if tick_inhibit;
		3613	return if $Coro::current == $Coro::main;
		3614
		3615	my $signal = new Coro::Signal;
		3616	push @WAIT_FOR_TICK, $signal;
		3617	$signal->wait;
		3618	}
		3619
		3620	sub wait_for_tick_begin {
		3621	return if tick_inhibit;
		3622	return if $Coro::current == $Coro::main;
		3623
		3624	my $signal = new Coro::Signal;
		3625	push @WAIT_FOR_TICK_BEGIN, $signal;
		3626	$signal->wait;
		3627	}
		3628
		3629	sub tick {
		3630	if ($Coro::current != $Coro::main) {
		3631	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3632	unless ++$bug_warning > 10;
		3633	return;
		3634	}
		3635
2475	cf::server_tick; # one server iteration	3636	cf::server_tick; # one server iteration
2476	$RUNTIME += $TICK;
2477	$NEXT_TICK += $TICK;
2478		3637
2479	$WAIT_FOR_TICK->broadcast;	3638	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3639	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2481		3640	Coro::async_pool {
2482	# if we are delayed by four ticks or more, skip them all	3641	$Coro::current->{desc} = "runtime saver";
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2484
2485	$TICK_WATCHER->at ($NEXT_TICK);
2486	$TICK_WATCHER->start;
2487	},
2488	);
2489
2490	IO::AIO::max_poll_time $TICK * 0.2;
2491
2492	Event->io (
2493	fd => IO::AIO::poll_fileno,
2494	poll => 'r',
2495	prio => 5,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499
2500	Event->timer (
2501	data => WF_AUTOCANCEL,
2502	after => 0,
2503	interval => 10,
2504	cb => sub {
2505	(Coro::unblock_sub {
2506	write_runtime	3642	write_runtime
2507	or warn "ERROR: unable to write runtime file: $!";	3643	or warn "ERROR: unable to write runtime file: $!";
2508	})->();	3644	};
2509	},	3645	}
2510	);	3646
		3647	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3648	$sig->send;
		3649	}
		3650	while (my $sig = shift @WAIT_FOR_TICK) {
		3651	$sig->send;
		3652	}
		3653
		3654	$LOAD = ($NOW - $TICK_START) / $TICK;
		3655	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3656
		3657	if (0) {
		3658	if ($NEXT_TICK) {
		3659	my $jitter = $TICK_START - $NEXT_TICK;
		3660	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3661	warn "jitter $JITTER\n";#d#
		3662	}
		3663	}
		3664	}
		3665
		3666	{
		3667	# configure BDB
		3668
		3669	BDB::min_parallel 8;
		3670	BDB::max_poll_reqs $TICK * 0.1;
		3671	$Coro::BDB::WATCHER->priority (1);
		3672
		3673	unless ($DB_ENV) {
		3674	$DB_ENV = BDB::db_env_create;
		3675	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3676	| BDB::LOG_AUTOREMOVE, 1);
		3677	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3678	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3679
		3680	cf::sync_job {
		3681	eval {
		3682	BDB::db_env_open
		3683	$DB_ENV,
		3684	$BDBDIR,
		3685	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3686	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3687	0666;
		3688
		3689	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3690	};
		3691
		3692	cf::cleanup "db_env_open(db): $@" if $@;
		3693	};
		3694	}
		3695
		3696	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3697	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3698	};
		3699	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3700	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3701	};
		3702	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3703	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3704	};
		3705	}
		3706
		3707	{
		3708	# configure IO::AIO
		3709
		3710	IO::AIO::min_parallel 8;
		3711	IO::AIO::max_poll_time $TICK * 0.1;
		3712	$Coro::AIO::WATCHER->priority (1);
		3713	}
		3714
		3715	my $_log_backtrace;
		3716
		3717	sub _log_backtrace {
		3718	my ($msg, @addr) = @_;
		3719
		3720	$msg =~ s/\n//;
		3721
		3722	# limit the # of concurrent backtraces
		3723	if ($_log_backtrace < 2) {
		3724	++$_log_backtrace;
		3725	async {
		3726	$Coro::current->{desc} = "abt $msg";
		3727
		3728	my @bt = fork_call {
		3729	@addr = map { sprintf "%x", $_ } @addr;
		3730	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3731	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3732	or die "addr2line: $!";
		3733
		3734	my @funcs;
		3735	my @res = <$fh>;
		3736	chomp for @res;
		3737	while (@res) {
		3738	my ($func, $line) = splice @res, 0, 2, ();
		3739	push @funcs, "[$func] $line";
		3740	}
		3741
		3742	@funcs
		3743	};
		3744
		3745	LOG llevInfo, "[ABT] $msg\n";
		3746	LOG llevInfo, "[ABT] $_\n" for @bt;
		3747	--$_log_backtrace;
		3748	};
		3749	} else {
		3750	LOG llevInfo, "[ABT] $msg\n";
		3751	LOG llevInfo, "[ABT] [suppressed]\n";
		3752	}
		3753	}
		3754
		3755	# load additional modules
		3756	use cf::pod;
2511		3757
2512	END { cf::emergency_save }	3758	END { cf::emergency_save }
2513		3759
2514	1	3760	1
2515		3761

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