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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.162 by root, Thu Jan 11 00:41:08 2007 UTC vs.
Revision 1.415 by root, Thu Apr 10 15:35:16 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
3	use utf8;	24	use utf8;
4	use strict;	25	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV 3.2;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro 3.3 ();	36	use Coro 4.50 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::EV;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
18	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
19		47
		48	use JSON::XS 2.01 ();
		49	use BDB ();
20	use Data::Dumper;	50	use Data::Dumper;
21	use Digest::MD5;	51	use Digest::MD5;
22	use Fcntl;	52	use Fcntl;
		53	use YAML ();
23	use IO::AIO 2.32 ();	54	use IO::AIO 2.51 ();
24	use YAML::Syck ();
25	use Time::HiRes;	55	use Time::HiRes;
		56	use Compress::LZF;
		57	use Digest::MD5 ();
26		58
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	59	# configure various modules to our taste
		60	#
		61	$Storable::canonical = 1; # reduce rsync transfers
		62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		64
		65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
28		66
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		68
36	our %COMMAND = ();	69	our %COMMAND = ();
37	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
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 $coin = coin_from_name $name
		555
		556	=cut
		557
		558	our %coin_alias = (
		559	"silver" => "silvercoin",
		560	"silvercoin" => "silvercoin",
		561	"silvercoins" => "silvercoin",
		562	"gold" => "goldcoin",
		563	"goldcoin" => "goldcoin",
		564	"goldcoins" => "goldcoin",
		565	"platinum" => "platinacoin",
		566	"platinumcoin" => "platinacoin",
		567	"platinumcoins" => "platinacoin",
		568	"platina" => "platinacoin",
		569	"platinacoin" => "platinacoin",
		570	"platinacoins" => "platinacoin",
		571	"royalty" => "royalty",
		572	"royalties" => "royalty",
		573	);
		574
		575	sub coin_from_name($) {
		576	$coin_alias{$_[0]}
		577	? cf::arch::find $coin_alias{$_[0]}
		578	: undef
		579	}
		580
		581	=item $value = cf::db_get $family => $key
		582
		583	Returns a single value from the environment database.
		584
		585	=item cf::db_put $family => $key => $value
		586
		587	Stores the given C<$value> in the family. It can currently store binary
		588	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		589
		590	=item $db = cf::db_table "name"
		591
		592	Create and/or open a new database table. The string must not be "db" and must be unique
		593	within each server.
		594
		595	=cut
		596
		597	sub db_table($) {
		598	my ($name) = @_;
		599	my $db = BDB::db_create $DB_ENV;
		600
		601	eval {
		602	$db->set_flags (BDB::CHKSUM);
		603
		604	utf8::encode $name;
		605	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		606	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		607	cf::cleanup "db_open(db): $!" if $!;
		608	};
		609	cf::cleanup "db_open(db): $@" if $@;
		610
		611	$db
		612	}
		613
		614	our $DB;
		615
		616	sub db_init {
		617	cf::sync_job {
		618	$DB ||= db_table "db";
		619	};
		620	}
		621
		622	sub db_get($$) {
		623	my $key = "$_[0]/$_[1]";
		624
		625	cf::sync_job {
		626	BDB::db_get $DB, undef, $key, my $data;
		627
		628	$! ? ()
		629	: $data
360	1	630	}
		631	}
		632
		633	sub db_put($$$) {
		634	BDB::dbreq_pri 4;
		635	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		636	}
		637
		638	=item cf::cache $id => [$paths...], $processversion => $process
		639
		640	Generic caching function that returns the value of the resource $id,
		641	caching and regenerating as required.
		642
		643	This function can block.
		644
		645	=cut
		646
		647	sub cache {
		648	my ($id, $src, $processversion, $process) = @_;
		649
		650	my $meta =
		651	join "\x00",
		652	$processversion,
		653	map {
		654	aio_stat $_
		655	and Carp::croak "$_: $!";
		656
		657	($_, (stat _)[7,9])
		658	} @$src;
		659
		660	my $dbmeta = db_get cache => "$id/meta";
		661	if ($dbmeta ne $meta) {
		662	# changed, we may need to process
		663
		664	my @data;
		665	my $md5;
		666
		667	for (0 .. $#$src) {
		668	0 <= aio_load $src->[$_], $data[$_]
		669	or Carp::croak "$src->[$_]: $!";
		670	}
		671
		672	# if processing is expensive, check
		673	# checksum first
		674	if (1) {
		675	$md5 =
		676	join "\x00",
		677	$processversion,
		678	map {
		679	cf::cede_to_tick;
		680	($src->[$_], Digest::MD5::md5_hex $data[$_])
		681	} 0.. $#$src;
		682
		683
		684	my $dbmd5 = db_get cache => "$id/md5";
		685	if ($dbmd5 eq $md5) {
		686	db_put cache => "$id/meta", $meta;
		687
		688	return db_get cache => "$id/data";
		689	}
		690	}
		691
		692	my $t1 = Time::HiRes::time;
		693	my $data = $process->(\@data);
		694	my $t2 = Time::HiRes::time;
		695
		696	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		697
		698	db_put cache => "$id/data", $data;
		699	db_put cache => "$id/md5" , $md5;
		700	db_put cache => "$id/meta", $meta;
		701
		702	return $data;
		703	}
		704
		705	db_get cache => "$id/data"
		706	}
		707
		708	=item cf::datalog type => key => value, ...
		709
		710	Log a datalog packet of the given type with the given key-value pairs.
		711
		712	=cut
		713
		714	sub datalog($@) {
		715	my ($type, %kv) = @_;
		716	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	717	}
362		718
363	=back	719	=back
364		720
365	=cut	721	=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		722
523	#############################################################################	723	#############################################################################
524		724
525	=head2 ATTACHABLE OBJECTS	725	=head2 ATTACHABLE OBJECTS
526		726
…		…
528	attach callbacks/event handlers (a collection of which is called an "attachment")	728	attach callbacks/event handlers (a collection of which is called an "attachment")
529	to it. All such attachable objects support the following methods.	729	to it. All such attachable objects support the following methods.
530		730
531	In the following description, CLASS can be any of C<global>, C<object>	731	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	732	C<player>, C<client> or C<map> (i.e. the attachable objects in
533	crossfire+).	733	Deliantra).
534		734
535	=over 4	735	=over 4
536		736
537	=item $attachable->attach ($attachment, key => $value...)	737	=item $attachable->attach ($attachment, key => $value...)
538		738
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	852	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	853	our @CB_MAP = ();
654		854
655	my %attachment;	855	my %attachment;
656		856
		857	sub cf::attachable::thawer_merge {
		858	# simply override everything except _meta
		859	local $_[0]{_meta};
		860	%{$_[0]} = %{$_[1]};
		861	}
		862
657	sub _attach_cb($$$$) {	863	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	864	my ($registry, $event, $prio, $cb) = @_;
659		865
660	use sort 'stable';	866	use sort 'stable';
661		867
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	901	$registry = $CB_TYPE[$object_type] ||= [];
696		902
697	} elsif ($type eq "subtype") {	903	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	904	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	905	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	906	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		907
702	} elsif ($type eq "package") {	908	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	909	my $pkg = shift @arg;
704		910
705	while (my ($name, $id) = each %cb_id) {	911	while (my ($name, $id) = each %cb_id) {
…		…
734	_attach $registry, $klass, @attach;	940	_attach $registry, $klass, @attach;
735	}	941	}
736		942
737	$obj->{$name} = \%arg;	943	$obj->{$name} = \%arg;
738	} else {	944	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	945	warn "object uses attachment '$name' which is not available, postponing.\n";
740	}	946	}
741		947
742	$obj->{_attachment}{$name} = undef;	948	$obj->{_attachment}{$name} = undef;
743	}	949	}
744		950
…		…
746	if (ref $_[0]) {	952	if (ref $_[0]) {
747	_object_attach @_;	953	_object_attach @_;
748	} else {	954	} else {
749	_attach shift->_attach_registry, @_;	955	_attach shift->_attach_registry, @_;
750	}	956	}
		957	_recalc_want;
751	};	958	};
752		959
753	# all those should be optimised	960	# all those should be optimised
754	sub cf::attachable::detach {	961	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	962	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	965	delete $obj->{_attachment}{$name};
759	reattach ($obj);	966	reattach ($obj);
760	} else {	967	} else {
761	Carp::croak "cannot, currently, detach class attachments";	968	Carp::croak "cannot, currently, detach class attachments";
762	}	969	}
		970	_recalc_want;
763	};	971	};
764		972
765	sub cf::attachable::attached {	973	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
767		975
…		…
782	";	990	";
783	die if $@;	991	die if $@;
784	}	992	}
785		993
786	our $override;	994	our $override;
787	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	995	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
788		996
789	sub override {	997	sub override {
790	$override = 1;	998	$override = 1;
791	@invoke_results = ();	999	@INVOKE_RESULTS = (@_);
792	}	1000	}
793		1001
794	sub do_invoke {	1002	sub do_invoke {
795	my $event = shift;	1003	my $event = shift;
796	my $callbacks = shift;	1004	my $callbacks = shift;
797		1005
798	@invoke_results = ();	1006	@INVOKE_RESULTS = ();
799		1007
800	local $override;	1008	local $override;
801		1009
802	for (@$callbacks) {	1010	for (@$callbacks) {
803	eval { &{$_->[1]} };	1011	eval { &{$_->[1]} };
…		…
812	}	1020	}
813		1021
814	0	1022	0
815	}	1023	}
816		1024
817	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1025	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
818		1026
819	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
820		1028
821	Generate an object-specific event with the given arguments.	1029	Generate an object-specific event with the given arguments.
822		1030
823	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1031	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	1032	removed in future versions), and there is no public API to access override
825	results (if you must, access C<@cf::invoke_results> directly).	1033	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
826		1034
827	=back	1035	=back
828		1036
829	=cut	1037	=cut
830		1038
831	#############################################################################	1039	#############################################################################
832	# object support	1040	# object support
		1041
		1042	sub _object_equal($$);
		1043	sub _object_equal($$) {
		1044	my ($a, $b) = @_;
		1045
		1046	return 0 unless (ref $a) eq (ref $b);
		1047
		1048	if ("HASH" eq ref $a) {
		1049	my @ka = keys %$a;
		1050	my @kb = keys %$b;
		1051
		1052	return 0 if @ka != @kb;
		1053
		1054	for (0 .. $#ka) {
		1055	return 0 unless $ka[$_] eq $kb[$_];
		1056	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1057	}
		1058
		1059	} elsif ("ARRAY" eq ref $a) {
		1060
		1061	return 0 if @$a != @$b;
		1062
		1063	for (0 .. $#$a) {
		1064	return 0 unless _object_equal $a->[$_], $b->[$_];
		1065	}
		1066
		1067	} elsif ($a ne $b) {
		1068	return 0;
		1069	}
		1070
		1071	1
		1072	}
		1073
		1074	our $SLOW_MERGES;#d#
		1075	sub _can_merge {
		1076	my ($ob1, $ob2) = @_;
		1077
		1078	++$SLOW_MERGES;#d#
		1079
		1080	# we do the slow way here
		1081	return _object_equal $ob1, $ob2
		1082	}
833		1083
834	sub reattach {	1084	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	1085	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	1086	my ($obj) = @_;
		1087
		1088	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		1089
838	my $registry = $obj->registry;	1090	my $registry = $obj->registry;
839		1091
840	@$registry = ();	1092	@$registry = ();
841		1093
…		…
856	cf::attachable->attach (	1108	cf::attachable->attach (
857	prio => -1000000,	1109	prio => -1000000,
858	on_instantiate => sub {	1110	on_instantiate => sub {
859	my ($obj, $data) = @_;	1111	my ($obj, $data) = @_;
860		1112
861	$data = from_json $data;	1113	$data = decode_json $data;
862		1114
863	for (@$data) {	1115	for (@$data) {
864	my ($name, $args) = @$_;	1116	my ($name, $args) = @$_;
865		1117
866	$obj->attach ($name, %{$args || {} });	1118	$obj->attach ($name, %{$args || {} });
…		…
882	sub object_freezer_save {	1134	sub object_freezer_save {
883	my ($filename, $rdata, $objs) = @_;	1135	my ($filename, $rdata, $objs) = @_;
884		1136
885	sync_job {	1137	sync_job {
886	if (length $$rdata) {	1138	if (length $$rdata) {
		1139	utf8::decode (my $decname = $filename);
887	warn sprintf "saving %s (%d,%d)\n",	1140	warn sprintf "saving %s (%d,%d)\n",
888	$filename, length $$rdata, scalar @$objs;	1141	$decname, length $$rdata, scalar @$objs;
889		1142
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1143	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	1144	chmod SAVE_MODE, $fh;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1145	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
893	aio_fsync $fh;	1146	aio_fsync $fh if $cf::USE_FSYNC;
894	close $fh;	1147	close $fh;
895		1148
896	if (@$objs) {	1149	if (@$objs) {
897	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1150	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
898	chmod SAVE_MODE, $fh;	1151	chmod SAVE_MODE, $fh;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	1152	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	1153	aio_write $fh, 0, (length $data), $data, 0;
901	aio_fsync $fh;	1154	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	1155	close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	1156	aio_rename "$filename.pst~", "$filename.pst";
904	}	1157	}
905	} else {	1158	} else {
906	aio_unlink "$filename.pst";	1159	aio_unlink "$filename.pst";
…		…
912	}	1165	}
913	} else {	1166	} else {
914	aio_unlink $filename;	1167	aio_unlink $filename;
915	aio_unlink "$filename.pst";	1168	aio_unlink "$filename.pst";
916	}	1169	}
917	}	1170	};
918	}	1171	}
919		1172
920	sub object_freezer_as_string {	1173	sub object_freezer_as_string {
921	my ($rdata, $objs) = @_;	1174	my ($rdata, $objs) = @_;
922		1175
…		…
934	or return;	1187	or return;
935		1188
936	unless (aio_stat "$filename.pst") {	1189	unless (aio_stat "$filename.pst") {
937	(aio_load "$filename.pst", $av) >= 0	1190	(aio_load "$filename.pst", $av) >= 0
938	or return;	1191	or return;
		1192
939	$av = eval { (Storable::thaw $av)->{objs} };	1193	my $st = eval { Coro::Storable::thaw $av };
		1194	$av = $st->{objs};
940	}	1195	}
941		1196
		1197	utf8::decode (my $decname = $filename);
942	warn sprintf "loading %s (%d)\n",	1198	warn sprintf "loading %s (%d,%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1199	$decname, length $data, scalar @{$av || []};
		1200
944	return ($data, $av);	1201	($data, $av)
945	}	1202	}
		1203
		1204	=head2 COMMAND CALLBACKS
		1205
		1206	=over 4
		1207
		1208	=cut
946		1209
947	#############################################################################	1210	#############################################################################
948	# command handling &c	1211	# command handling &c
949		1212
950	=item cf::register_command $name => \&callback($ob,$args);	1213	=item cf::register_command $name => \&callback($ob,$args);
…		…
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1226	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1227	}
965		1228
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1229	=item cf::register_extcmd $name => \&callback($pl,$packet);
967		1230
968	Register a callbackf ro execution when the client sends an extcmd packet.	1231	Register a callback for execution when the client sends an (synchronous)
		1232	extcmd packet. Ext commands will be processed in the order they are
		1233	received by the server, like other user commands. The first argument is
		1234	the logged-in player. Ext commands can only be processed after a player
		1235	has logged in successfully.
969		1236
970	If the callback returns something, it is sent back as if reply was being	1237	If the callback returns something, it is sent back as if reply was being
971	called.	1238	called.
972		1239
		1240	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1241
		1242	Register a callback for execution when the client sends an (asynchronous)
		1243	exticmd packet. Exti commands are processed by the server as soon as they
		1244	are received, i.e. out of order w.r.t. other commands. The first argument
		1245	is a client socket. Exti commands can be received anytime, even before
		1246	log-in.
		1247
		1248	If the callback returns something, it is sent back as if reply was being
		1249	called.
		1250
973	=cut	1251	=cut
974		1252
975	sub register_extcmd {	1253	sub register_extcmd {
976	my ($name, $cb) = @_;	1254	my ($name, $cb) = @_;
977		1255
978	$EXTCMD{$name} = $cb;	1256	$EXTCMD{$name} = $cb;
		1257	}
		1258
		1259	sub register_exticmd {
		1260	my ($name, $cb) = @_;
		1261
		1262	$EXTICMD{$name} = $cb;
979	}	1263	}
980		1264
981	cf::player->attach (	1265	cf::player->attach (
982	on_command => sub {	1266	on_command => sub {
983	my ($pl, $name, $params) = @_;	1267	my ($pl, $name, $params) = @_;
…		…
992	cf::override;	1276	cf::override;
993	},	1277	},
994	on_extcmd => sub {	1278	on_extcmd => sub {
995	my ($pl, $buf) = @_;	1279	my ($pl, $buf) = @_;
996		1280
997	my $msg = eval { from_json $buf };	1281	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
998		1282
999	if (ref $msg) {	1283	if (ref $msg) {
		1284	my ($type, $reply, @payload) =
		1285	"ARRAY" eq ref $msg
		1286	? @$msg
		1287	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1288
		1289	my @reply;
		1290
1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1291	if (my $cb = $EXTCMD{$type}) {
1001	if (my %reply = $cb->($pl, $msg)) {	1292	@reply = $cb->($pl, @payload);
1002	$pl->ext_reply ($msg->{msgid}, %reply);
1003	}
1004	}	1293	}
		1294
		1295	$pl->ext_reply ($reply, @reply)
		1296	if $reply;
		1297
1005	} else {	1298	} else {
1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1299	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1007	}	1300	}
1008		1301
1009	cf::override;	1302	cf::override;
1010	},	1303	},
1011	);	1304	);
1012		1305
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 {	1306	sub load_extensions {
		1307	cf::sync_job {
		1308	my %todo;
		1309
1041	for my $ext (<$LIBDIR/*.ext>) {	1310	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1311	next unless -r $path;
1043	eval {	1312
1044	load_extension $ext;	1313	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1314	my $base = $1;
		1315	my $pkg = $1;
		1316	$pkg =~ s/[^[:word:]]/_/g;
		1317	$pkg = "ext::$pkg";
		1318
		1319	open my $fh, "<:utf8", $path
		1320	or die "$path: $!";
		1321
		1322	my $source = do { local $/; <$fh> };
		1323
		1324	my %ext = (
		1325	path => $path,
		1326	base => $base,
		1327	pkg => $pkg,
		1328	);
		1329
		1330	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1331	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1332
		1333	$ext{source} =
		1334	"package $pkg; use strict; use utf8;\n"
		1335	. "#line 1 \"$path\"\n{\n"
		1336	. $source
		1337	. "\n};\n1";
		1338
		1339	$todo{$base} = \%ext;
		1340	}
		1341
		1342	my %done;
		1343	while (%todo) {
		1344	my $progress;
		1345
		1346	while (my ($k, $v) = each %todo) {
		1347	for (split /,\s*/, $v->{meta}{depends}) {
		1348	goto skip
		1349	unless exists $done{$_};
		1350	}
		1351
		1352	warn "... loading '$k' into '$v->{pkg}'\n";
		1353
		1354	unless (eval $v->{source}) {
		1355	my $msg = $@ ? "$v->{path}: $@\n"
		1356	: "$v->{base}: extension inactive.\n";
		1357
		1358	if (exists $v->{meta}{mandatory}) {
		1359	warn $msg;
		1360	cf::cleanup "mandatory extension failed to load, exiting.";
		1361	}
		1362
		1363	warn $msg;
		1364	}
		1365
		1366	$done{$k} = delete $todo{$k};
		1367	push @EXTS, $v->{pkg};
		1368	$progress = 1;
1045	1	1369	}
1046	} or warn "$ext not loaded: $@";	1370
		1371	skip:
		1372	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1373	unless $progress;
		1374	}
1047	}	1375	};
1048	}	1376	}
1049		1377
1050	#############################################################################	1378	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1379
1053	*cf::mapsupport::on_clean = sub {	1380	=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		1381
1066	=head2 CORE EXTENSIONS	1382	=head2 CORE EXTENSIONS
1067		1383
1068	Functions and methods that extend core crossfire objects.	1384	Functions and methods that extend core crossfire objects.
1069		1385
…		…
1075		1391
1076	=head3 cf::player	1392	=head3 cf::player
1077		1393
1078	=over 4	1394	=over 4
1079		1395
		1396	=item cf::player::num_playing
		1397
		1398	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1399
		1400	=cut
		1401
		1402	sub num_playing {
		1403	scalar grep
		1404	$_->ob->map
		1405	&& !$_->hidden
		1406	&& !$_->ob->flag (cf::FLAG_WIZ),
		1407	cf::player::list
		1408	}
		1409
1080	=item cf::player::find $login	1410	=item cf::player::find $login
1081		1411
1082	Returns the given player object, loading it if necessary (might block).	1412	Returns the given player object, loading it if necessary (might block).
1083		1413
1084	=cut	1414	=cut
1085		1415
1086	sub playerdir($) {	1416	sub playerdir($) {
1087	cf::localdir	1417	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1418	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1419	}
1093		1420
1094	sub path($) {	1421	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1422	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1423
1097	(playerdir $login) . "/$login.pl"	1424	(playerdir $login) . "/playerdata"
1098	}	1425	}
1099		1426
1100	sub find_active($) {	1427	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1428	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1429	and $cf::PLAYER{$_[0]}->active
…		…
1105		1432
1106	sub exists($) {	1433	sub exists($) {
1107	my ($login) = @_;	1434	my ($login) = @_;
1108		1435
1109	$cf::PLAYER{$login}	1436	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1437	or cf::sync_job { !aio_stat path $login }
1111	}	1438	}
1112		1439
1113	sub find($) {	1440	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1441	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1442	my $login = $_[0];
1116		1443
1117	my $guard = cf::lock_acquire "user_find:$login";	1444	my $guard = cf::lock_acquire "user_find:$login";
1118		1445
1119	$cf::PLAYER{$_[0]} || do {	1446	$cf::PLAYER{$_[0]} || do {
1120	my $pl = load_pl path $login	1447	# rename old playerfiles to new ones
		1448	#TODO: remove when no longer required
		1449	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1450	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1451	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1452	aio_unlink +(playerdir $login) . "/$login.pl";
		1453
		1454	my $f = new_from_file cf::object::thawer path $login
1121	or return;	1455	or return;
		1456
		1457	my $pl = cf::player::load_pl $f
		1458	or return;
		1459	local $cf::PLAYER_LOADING{$login} = $pl;
		1460	$f->resolve_delayed_derefs;
1122	$cf::PLAYER{$login} = $pl	1461	$cf::PLAYER{$login} = $pl
1123	}	1462	}
1124	}	1463	}
1125	}	1464	}
1126		1465
…		…
1136		1475
1137	aio_mkdir playerdir $pl, 0770;	1476	aio_mkdir playerdir $pl, 0770;
1138	$pl->{last_save} = $cf::RUNTIME;	1477	$pl->{last_save} = $cf::RUNTIME;
1139		1478
1140	$pl->save_pl ($path);	1479	$pl->save_pl ($path);
1141	Coro::cede;	1480	cf::cede_to_tick;
1142	}	1481	}
1143		1482
1144	sub new($) {	1483	sub new($) {
1145	my ($login) = @_;	1484	my ($login) = @_;
1146		1485
…		…
1152	$cf::PLAYER{$login} = $self;	1491	$cf::PLAYER{$login} = $self;
1153		1492
1154	$self	1493	$self
1155	}	1494	}
1156		1495
		1496	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1497
		1498	=cut
		1499
		1500	sub send_msg {
		1501	my $ns = shift->ns
		1502	or return;
		1503	$ns->send_msg (@_);
		1504	}
		1505
1157	=item $pl->quit_character	1506	=item $pl->quit_character
1158		1507
1159	Nukes the player without looking back. If logged in, the connection will	1508	Nukes the player without looking back. If logged in, the connection will
1160	be destroyed. May block for a long time.	1509	be destroyed. May block for a long time.
1161		1510
1162	=cut	1511	=cut
1163		1512
1164	sub quit_character {	1513	sub quit_character {
1165	my ($pl) = @_;	1514	my ($pl) = @_;
		1515
		1516	my $name = $pl->ob->name;
1166		1517
1167	$pl->{deny_save} = 1;	1518	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1519	$pl->password ("*"); # this should lock out the player until we nuked the dir
1169		1520
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1521	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1175	my $path = playerdir $pl;	1526	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1527	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1528	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1529	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1530	$pl->destroy;
		1531
		1532	my $prefix = qr<^~\Q$name\E/>;
		1533
		1534	# nuke player maps
		1535	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1536
1180	IO::AIO::aio_rmtree $temp;	1537	IO::AIO::aio_rmtree $temp;
		1538	}
		1539
		1540	=item $pl->kick
		1541
		1542	Kicks a player out of the game. This destroys the connection.
		1543
		1544	=cut
		1545
		1546	sub kick {
		1547	my ($pl, $kicker) = @_;
		1548
		1549	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1550	$pl->killer ("kicked");
		1551	$pl->ns->destroy;
1181	}	1552	}
1182		1553
1183	=item cf::player::list_logins	1554	=item cf::player::list_logins
1184		1555
1185	Returns am arrayref of all valid playernames in the system, can take a	1556	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1557	while and may block, so not sync_job-capable, ever.
1187		1558
1188	=cut	1559	=cut
1189		1560
1190	sub list_logins {	1561	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1562	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1563	or return [];
1193		1564
1194	my @logins;	1565	my @logins;
1195		1566
1196	for my $login (@$dirs) {	1567	for my $login (@$dirs) {
		1568	my $path = path $login;
		1569
		1570	# a .pst is a dead give-away for a valid player
		1571	unless (-e "$path.pst") {
1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1572	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1198	aio_read $fh, 0, 512, my $buf, 0 or next;	1573	aio_read $fh, 0, 512, my $buf, 0 or next;
1199	$buf !~ /^password -------------$/m or next; # official not-valid tag	1574	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1575	}
1200		1576
1201	utf8::decode $login;	1577	utf8::decode $login;
1202	push @logins, $login;	1578	push @logins, $login;
1203	}	1579	}
1204		1580
1205	\@logins	1581	\@logins
1206	}	1582	}
1207		1583
1208	=item $player->maps	1584	=item $player->maps
1209		1585
1210	Returns an arrayref of cf::path's of all maps that are private for this	1586	Returns an arrayref of map paths that are private for this
1211	player. May block.	1587	player. May block.
1212		1588
1213	=cut	1589	=cut
1214		1590
1215	sub maps($) {	1591	sub maps($) {
1216	my ($pl) = @_;	1592	my ($pl) = @_;
		1593
		1594	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1595
1218	my $files = aio_readdir playerdir $pl	1596	my $files = aio_readdir playerdir $pl
1219	or return;	1597	or return;
1220		1598
1221	my @paths;	1599	my @paths;
…		…
1223	for (@$files) {	1601	for (@$files) {
1224	utf8::decode $_;	1602	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1603	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1604	next unless /^$PATH_SEP/o;
1227		1605
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1606	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1607	}
1230		1608
1231	\@paths	1609	\@paths
1232	}	1610	}
1233		1611
		1612	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1613
		1614	Expand crossfire pod fragments into protocol xml.
		1615
		1616	=cut
		1617
		1618	use re 'eval';
		1619
		1620	my $group;
		1621	my $interior; $interior = qr{
		1622	# match a pod interior sequence sans C<< >>
		1623	(?:
		1624	\ (.*?)\ (?{ $group = $^N })
		1625	| < (??{$interior}) >
		1626	)
		1627	}x;
		1628
		1629	sub expand_cfpod {
		1630	my ($self, $pod) = @_;
		1631
		1632	my $xml;
		1633
		1634	while () {
		1635	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1636	$group = $1;
		1637
		1638	$group =~ s/&/&amp;/g;
		1639	$group =~ s/</&lt;/g;
		1640
		1641	$xml .= $group;
		1642	} elsif ($pod =~ m%\G
		1643	([BCGHITU])
		1644	<
		1645	(?:
		1646	([^<>]*) (?{ $group = $^N })
		1647	| < $interior >
		1648	)
		1649	>
		1650	%gcsx
		1651	) {
		1652	my ($code, $data) = ($1, $group);
		1653
		1654	if ($code eq "B") {
		1655	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1656	} elsif ($code eq "I") {
		1657	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1658	} elsif ($code eq "U") {
		1659	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1660	} elsif ($code eq "C") {
		1661	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1662	} elsif ($code eq "T") {
		1663	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1664	} elsif ($code eq "G") {
		1665	my ($male, $female) = split /\|/, $data;
		1666	$data = $self->gender ? $female : $male;
		1667	$xml .= expand_cfpod ($self, $data);
		1668	} elsif ($code eq "H") {
		1669	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1670	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1671	"")
		1672	[$self->{hintmode}];
		1673	} else {
		1674	$xml .= "error processing '$code($data)' directive";
		1675	}
		1676	} else {
		1677	if ($pod =~ /\G(.+)/) {
		1678	warn "parse error while expanding $pod (at $1)";
		1679	}
		1680	last;
		1681	}
		1682	}
		1683
		1684	for ($xml) {
		1685	# create single paragraphs (very hackish)
		1686	s/(?<=\S)\n(?=\w)/ /g;
		1687
		1688	# compress some whitespace
		1689	s/\s+\n/\n/g; # ws line-ends
		1690	s/\n\n+/\n/g; # double lines
		1691	s/^\n+//; # beginning lines
		1692	s/\n+$//; # ending lines
		1693	}
		1694
		1695	$xml
		1696	}
		1697
		1698	no re 'eval';
		1699
		1700	sub hintmode {
		1701	$_[0]{hintmode} = $_[1] if @_ > 1;
		1702	$_[0]{hintmode}
		1703	}
		1704
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1705	=item $player->ext_reply ($msgid, @msg)
1235		1706
1236	Sends an ext reply to the player.	1707	Sends an ext reply to the player.
1237		1708
1238	=cut	1709	=cut
1239		1710
1240	sub ext_reply($$$%) {	1711	sub ext_reply($$@) {
1241	my ($self, $id, %msg) = @_;	1712	my ($self, $id, @msg) = @_;
1242		1713
1243	$msg{msgid} = $id;	1714	$self->ns->ext_reply ($id, @msg)
1244
1245	$self->send ("ext " . cf::to_json \%msg);
1246	}	1715	}
1247		1716
1248	package cf;	1717	=item $player->ext_msg ($type, @msg)
		1718
		1719	Sends an ext event to the client.
		1720
		1721	=cut
		1722
		1723	sub ext_msg($$@) {
		1724	my ($self, $type, @msg) = @_;
		1725
		1726	$self->ns->ext_msg ($type, @msg);
		1727	}
		1728
		1729	=head3 cf::region
		1730
		1731	=over 4
		1732
		1733	=cut
		1734
		1735	package cf::region;
		1736
		1737	=item cf::region::find_by_path $path
		1738
		1739	Tries to decuce the likely region for a map knowing only its path.
		1740
		1741	=cut
		1742
		1743	sub find_by_path($) {
		1744	my ($path) = @_;
		1745
		1746	my ($match, $specificity);
		1747
		1748	for my $region (list) {
		1749	if ($region->{match} && $path =~ $region->{match}) {
		1750	($match, $specificity) = ($region, $region->specificity)
		1751	if $region->specificity > $specificity;
		1752	}
		1753	}
		1754
		1755	$match
		1756	}
1249		1757
1250	=back	1758	=back
1251
1252		1759
1253	=head3 cf::map	1760	=head3 cf::map
1254		1761
1255	=over 4	1762	=over 4
1256		1763
…		…
1259	package cf::map;	1766	package cf::map;
1260		1767
1261	use Fcntl;	1768	use Fcntl;
1262	use Coro::AIO;	1769	use Coro::AIO;
1263		1770
		1771	use overload
		1772	'""' => \&as_string,
		1773	fallback => 1;
		1774
1264	our $MAX_RESET = 3600;	1775	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1776	our $DEFAULT_RESET = 3000;
1266		1777
1267	sub generate_random_map {	1778	sub generate_random_map {
1268	my ($path, $rmp) = @_;	1779	my ($self, $rmp) = @_;
1269
1270	# mit "rum" bekleckern, nicht	1780	# mit "rum" bekleckern, nicht
1271	cf::map::_create_random_map (	1781	$self->_create_random_map (
1272	$path,
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1782	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1783	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1784	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1276	$rmp->{exit_on_final_map},	1785	$rmp->{exit_on_final_map},
1277	$rmp->{xsize}, $rmp->{ysize},	1786	$rmp->{xsize}, $rmp->{ysize},
…		…
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1791	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	1792	(cf::region::find $rmp->{region}), $rmp->{custom}
1284	)	1793	)
1285	}	1794	}
1286		1795
		1796	=item cf::map->register ($regex, $prio)
		1797
		1798	Register a handler for the map path matching the given regex at the
		1799	givne priority (higher is better, built-in handlers have priority 0, the
		1800	default).
		1801
		1802	=cut
		1803
		1804	sub register {
		1805	my (undef, $regex, $prio) = @_;
		1806	my $pkg = caller;
		1807
		1808	no strict;
		1809	push @{"$pkg\::ISA"}, __PACKAGE__;
		1810
		1811	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1812	}
		1813
		1814	# also paths starting with '/'
		1815	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1816
		1817	sub thawer_merge {
		1818	my ($self, $merge) = @_;
		1819
		1820	# we have to keep some variables in memory intact
		1821	local $self->{path};
		1822	local $self->{load_path};
		1823
		1824	$self->SUPER::thawer_merge ($merge);
		1825	}
		1826
		1827	sub normalise {
		1828	my ($path, $base) = @_;
		1829
		1830	$path = "$path"; # make sure its a string
		1831
		1832	$path =~ s/\.map$//;
		1833
		1834	# map plan:
		1835	#
		1836	# /! non-realised random map exit (special hack!)
		1837	# {... are special paths that are not being touched
		1838	# ?xxx/... are special absolute paths
		1839	# ?random/... random maps
		1840	# /... normal maps
		1841	# ~user/... per-player map of a specific user
		1842
		1843	$path =~ s/$PATH_SEP/\//go;
		1844
		1845	# treat it as relative path if it starts with
		1846	# something that looks reasonable
		1847	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1848	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1849
		1850	$base =~ s{[^/]+/?$}{};
		1851	$path = "$base/$path";
		1852	}
		1853
		1854	for ($path) {
		1855	redo if s{//}{/};
		1856	redo if s{/\.?/}{/};
		1857	redo if s{/[^/]+/\.\./}{/};
		1858	}
		1859
		1860	$path
		1861	}
		1862
		1863	sub new_from_path {
		1864	my (undef, $path, $base) = @_;
		1865
		1866	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1867
		1868	$path = normalise $path, $base;
		1869
		1870	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1871	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1872	my $self = bless cf::map::new, $pkg;
		1873	$self->{path} = $path; $self->path ($path);
		1874	$self->init; # pass $1 etc.
		1875	return $self;
		1876	}
		1877	}
		1878
		1879	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1880	()
		1881	}
		1882
		1883	sub init {
		1884	my ($self) = @_;
		1885
		1886	$self
		1887	}
		1888
		1889	sub as_string {
		1890	my ($self) = @_;
		1891
		1892	"$self->{path}"
		1893	}
		1894
		1895	# the displayed name, this is a one way mapping
		1896	sub visible_name {
		1897	&as_string
		1898	}
		1899
		1900	# the original (read-only) location
		1901	sub load_path {
		1902	my ($self) = @_;
		1903
		1904	"$MAPDIR/$self->{path}.map"
		1905	}
		1906
		1907	# the temporary/swap location
		1908	sub save_path {
		1909	my ($self) = @_;
		1910
		1911	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1912	"$TMPDIR/$path.map"
		1913	}
		1914
		1915	# the unique path, undef == no special unique path
		1916	sub uniq_path {
		1917	my ($self) = @_;
		1918
		1919	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1920	"$UNIQUEDIR/$path"
		1921	}
		1922
1287	# and all this just because we cannot iterate over	1923	# and all this just because we cannot iterate over
1288	# all maps in C++...	1924	# all maps in C++...
1289	sub change_all_map_light {	1925	sub change_all_map_light {
1290	my ($change) = @_;	1926	my ($change) = @_;
1291		1927
1292	$_->change_map_light ($change)	1928	$_->change_map_light ($change)
1293	for grep $_->outdoor, values %cf::MAP;	1929	for grep $_->outdoor, values %cf::MAP;
1294	}	1930	}
1295		1931
		1932	sub decay_objects {
		1933	my ($self) = @_;
		1934
		1935	return if $self->{deny_reset};
		1936
		1937	$self->do_decay_objects;
		1938	}
		1939
		1940	sub unlink_save {
		1941	my ($self) = @_;
		1942
		1943	utf8::encode (my $save = $self->save_path);
		1944	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1945	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1946	}
		1947
1296	sub load_map_header($) {	1948	sub load_header_from($) {
1297	my ($path) = @_;	1949	my ($self, $path) = @_;
1298		1950
1299	utf8::encode $path;	1951	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	1952	my $f = new_from_file cf::object::thawer $path
1301	or return;	1953	or return;
1302		1954
1303	my $map = cf::map::new	1955	$self->_load_header ($f)
1304	or return;	1956	or return;
1305		1957
1306	# for better error messages only, will be overwritten later	1958	local $MAP_LOADING{$self->{path}} = $self;
1307	$map->path ($path);	1959	$f->resolve_delayed_derefs;
1308		1960
1309	$map->load_header ($path)	1961	$self->{load_path} = $path;
		1962
		1963	1
		1964	}
		1965
		1966	sub load_header_orig {
		1967	my ($self) = @_;
		1968
		1969	$self->load_header_from ($self->load_path)
		1970	}
		1971
		1972	sub load_header_temp {
		1973	my ($self) = @_;
		1974
		1975	$self->load_header_from ($self->save_path)
		1976	}
		1977
		1978	sub prepare_temp {
		1979	my ($self) = @_;
		1980
		1981	$self->last_access ((delete $self->{last_access})
		1982	|| $cf::RUNTIME); #d#
		1983	# safety
		1984	$self->{instantiate_time} = $cf::RUNTIME
		1985	if $self->{instantiate_time} > $cf::RUNTIME;
		1986	}
		1987
		1988	sub prepare_orig {
		1989	my ($self) = @_;
		1990
		1991	$self->{load_original} = 1;
		1992	$self->{instantiate_time} = $cf::RUNTIME;
		1993	$self->last_access ($cf::RUNTIME);
		1994	$self->instantiate;
		1995	}
		1996
		1997	sub load_header {
		1998	my ($self) = @_;
		1999
		2000	if ($self->load_header_temp) {
		2001	$self->prepare_temp;
		2002	} else {
		2003	$self->load_header_orig
1310	or return;	2004	or return;
		2005	$self->prepare_orig;
		2006	}
1311		2007
1312	$map->{load_path} = $path;	2008	$self->{deny_reset} = 1
		2009	if $self->no_reset;
1313		2010
1314	$map	2011	$self->default_region (cf::region::find_by_path $self->{path})
		2012	unless $self->default_region;
		2013
		2014	1
1315	}	2015	}
1316		2016
1317	sub find;	2017	sub find;
1318	sub find {	2018	sub find {
1319	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1320		2020
1321	#warn "find<$path,$origin>\n";#d#
1322
1323	$path = new cf::path $path, $origin && $origin->path;	2021	$path = normalise $path, $origin && $origin->path;
1324	my $key = $path->as_string;
1325		2022
		2023	cf::lock_wait "map_data:$path";#d#remove
1326	cf::lock_wait "map_find:$key";	2024	cf::lock_wait "map_find:$path";
1327		2025
1328	$cf::MAP{$key} || do {	2026	$cf::MAP{$path} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	2027	my $guard1 = cf::lock_acquire "map_find:$path";
		2028	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1330		2029
1331	# do it the slow way	2030	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;	2031	or return;
1345		2032
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;	2033	$map->{last_save} = $cf::RUNTIME;
1358		2034
1359	Coro::cede;	2035	$map->load_header
		2036	or return;
1360		2037
1361	if ($map->should_reset) {	2038	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2039	# doing this can freeze the server in a sync job, obviously
		2040	#$cf::WAIT_FOR_TICK->wait;
		2041	undef $guard1;
		2042	undef $guard2;
1362	$map->reset;	2043	$map->reset;
1363	undef $guard;
1364	$map = find $path	2044	return find $path;
1365	or return;
1366	}	2045	}
1367		2046
1368	$cf::MAP{$key} = $map	2047	$cf::MAP{$path} = $map
1369	}	2048	}
1370	}	2049	}
		2050
		2051	sub pre_load { }
		2052	sub post_load { }
1371		2053
1372	sub load {	2054	sub load {
1373	my ($self) = @_;	2055	my ($self) = @_;
1374		2056
		2057	local $self->{deny_reset} = 1; # loading can take a long time
		2058
1375	my $path = $self->{path};	2059	my $path = $self->{path};
		2060
		2061	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2062	my $guard = cf::lock_acquire "map_data:$path";
1377		2063
		2064	return unless $self->valid;
1378	return if $self->in_memory != cf::MAP_SWAPPED;	2065	return unless $self->in_memory == cf::MAP_SWAPPED;
1379		2066
1380	$self->in_memory (cf::MAP_LOADING);	2067	$self->in_memory (cf::MAP_LOADING);
1381		2068
1382	$self->alloc;	2069	$self->alloc;
1383	$self->load_objects ($self->{load_path}, 1)	2070
		2071	$self->pre_load;
		2072	cf::cede_to_tick;
		2073
		2074	my $f = new_from_file cf::object::thawer $self->{load_path};
		2075	$f->skip_block;
		2076	$self->_load_objects ($f)
1384	or return;	2077	or return;
1385		2078
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2079	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1387	if delete $self->{load_original};	2080	if delete $self->{load_original};
1388		2081
1389	if (my $uniq = $path->uniq_path) {	2082	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	2083	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	2084	unless (aio_stat $uniq) {
		2085	if (my $f = new_from_file cf::object::thawer $uniq) {
1392	$self->clear_unique_items;	2086	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	2087	$self->_load_objects ($f);
		2088	$f->resolve_delayed_derefs;
		2089	}
1394	}	2090	}
1395	}	2091	}
1396		2092
1397	Coro::cede;	2093	$f->resolve_delayed_derefs;
1398		2094
		2095	cf::cede_to_tick;
1399	# now do the right thing for maps	2096	# now do the right thing for maps
1400	$self->link_multipart_objects;	2097	$self->link_multipart_objects;
1401
1402	if ($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)	2098	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	2099	unless $self->difficulty;
		2100	cf::cede_to_tick;
		2101
		2102	unless ($self->{deny_activate}) {
		2103	$self->decay_objects;
		2104	$self->fix_auto_apply;
		2105	$self->update_buttons;
		2106	cf::cede_to_tick;
		2107	$self->set_darkness_map;
		2108	cf::cede_to_tick;
1412	$self->activate;	2109	$self->activate;
1413	}	2110	}
1414		2111
1415	Coro::cede;	2112	$self->{last_save} = $cf::RUNTIME;
		2113	$self->last_access ($cf::RUNTIME);
1416		2114
1417	$self->in_memory (cf::MAP_IN_MEMORY);	2115	$self->in_memory (cf::MAP_IN_MEMORY);
		2116	}
		2117
		2118	$self->post_load;
		2119	}
		2120
		2121	sub customise_for {
		2122	my ($self, $ob) = @_;
		2123
		2124	return find "~" . $ob->name . "/" . $self->{path}
		2125	if $self->per_player;
		2126
		2127	# return find "?party/" . $ob->name . "/" . $self->{path}
		2128	# if $self->per_party;
		2129
		2130	$self
1418	}	2131	}
1419		2132
1420	# find and load all maps in the 3x3 area around a map	2133	# find and load all maps in the 3x3 area around a map
1421	sub load_diag {	2134	sub load_neighbours {
1422	my ($map) = @_;	2135	my ($map) = @_;
1423		2136
1424	my @diag; # diagonal neighbours	2137	my @neigh; # diagonal neighbours
1425		2138
1426	for (0 .. 3) {	2139	for (0 .. 3) {
1427	my $neigh = $map->tile_path ($_)	2140	my $neigh = $map->tile_path ($_)
1428	or next;	2141	or next;
1429	$neigh = find $neigh, $map	2142	$neigh = find $neigh, $map
1430	or next;	2143	or next;
1431	$neigh->load;	2144	$neigh->load;
1432		2145
		2146	push @neigh,
1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2147	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2148	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1435	}	2149	}
1436		2150
1437	for (@diag) {	2151	for (grep defined $_->[0], @neigh) {
		2152	my ($path, $origin) = @$_;
1438	my $neigh = find @$_	2153	my $neigh = find $path, $origin
1439	or next;	2154	or next;
1440	$neigh->load;	2155	$neigh->load;
1441	}	2156	}
1442	}	2157	}
1443		2158
…		…
1448	}	2163	}
1449		2164
1450	sub do_load_sync {	2165	sub do_load_sync {
1451	my ($map) = @_;	2166	my ($map) = @_;
1452		2167
		2168	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2169	if $Coro::current == $Coro::main;
		2170
1453	cf::sync_job { $map->load };	2171	cf::sync_job { $map->load };
1454	}	2172	}
1455		2173
1456	our %MAP_PREFETCH;	2174	our %MAP_PREFETCH;
		2175	our $MAP_PREFETCHER = undef;
		2176
		2177	sub find_async {
		2178	my ($path, $origin, $load) = @_;
		2179
		2180	$path = normalise $path, $origin && $origin->{path};
		2181
		2182	if (my $map = $cf::MAP{$path}) {
		2183	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2184	}
		2185
		2186	$MAP_PREFETCH{$path} |= $load;
		2187
1457	our $MAP_PREFETCHER = Coro::async {	2188	$MAP_PREFETCHER ||= cf::async {
1458	while () {	2189	$Coro::current->{desc} = "map prefetcher";
		2190
1459	while (%MAP_PREFETCH) {	2191	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH	2192	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	or next;	2193	if (my $map = find $k) {
		2194	$map->load if $v;
		2195	}
		2196
1462	my $path = delete $MAP_PREFETCH{$key};	2197	delete $MAP_PREFETCH{$k};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}	2198	}
1468	Coro::schedule;	2199	}
		2200	undef $MAP_PREFETCHER;
1469	}	2201	};
1470	};
1471
1472	sub find_async {
1473	my ($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;	2202	$MAP_PREFETCHER->prio (6);
1484		2203
1485	()	2204	()
1486	}	2205	}
1487		2206
1488	sub save {	2207	sub save {
1489	my ($self) = @_;	2208	my ($self) = @_;
1490		2209
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2210	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2211
1493	$self->{last_save} = $cf::RUNTIME;	2212	$self->{last_save} = $cf::RUNTIME;
1494		2213
1495	return unless $self->dirty;	2214	return unless $self->dirty;
1496		2215
1497	my $save = $self->{path}->save_path; utf8::encode $save;	2216	my $save = $self->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2217	my $uniq = $self->uniq_path; utf8::encode $uniq;
1499		2218
1500	$self->{load_path} = $save;	2219	$self->{load_path} = $save;
1501		2220
1502	return if $self->{deny_save};	2221	return if $self->{deny_save};
1503		2222
1504	local $self->{last_access} = $self->last_access;#d#	2223	local $self->{last_access} = $self->last_access;#d#
1505		2224
1506	cf::async {	2225	cf::async {
		2226	$Coro::current->{desc} = "map player save";
1507	$_->contr->save for $self->players;	2227	$_->contr->save for $self->players;
1508	};	2228	};
1509		2229
1510	if ($uniq) {	2230	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2231	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);	2232	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {	2233	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2234	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}	2235	}
1516	}	2236	}
1517		2237
1518	sub swap_out {	2238	sub swap_out {
1519	my ($self) = @_;	2239	my ($self) = @_;
1520		2240
1521	# save first because save cedes	2241	# save first because save cedes
1522	$self->save;	2242	$self->save;
1523		2243
1524	my $lock = cf::lock_acquire "map_data:" . $self->path;	2244	my $lock = cf::lock_acquire "map_data:$self->{path}";
1525		2245
1526	return if $self->players;	2246	return if $self->players;
1527	return if $self->in_memory != cf::MAP_IN_MEMORY;	2247	return if $self->in_memory != cf::MAP_IN_MEMORY;
1528	return if $self->{deny_save};	2248	return if $self->{deny_save};
1529		2249
		2250	$self->in_memory (cf::MAP_SWAPPED);
		2251
		2252	$self->deactivate;
		2253	$_->clear_links_to ($self) for values %cf::MAP;
1530	$self->clear;	2254	$self->clear;
1531	$self->in_memory (cf::MAP_SWAPPED);
1532	}	2255	}
1533		2256
1534	sub reset_at {	2257	sub reset_at {
1535	my ($self) = @_;	2258	my ($self) = @_;
1536		2259
1537	# TODO: safety, remove and allow resettable per-player maps	2260	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	2261	return 1e99 if $self->{deny_reset};
1540		2262
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2263	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2264	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		2265
…		…
1548	my ($self) = @_;	2270	my ($self) = @_;
1549		2271
1550	$self->reset_at <= $cf::RUNTIME	2272	$self->reset_at <= $cf::RUNTIME
1551	}	2273	}
1552		2274
1553	sub unlink_save {
1554	my ($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	$self->save;
1572	}
1573
1574	sub reset {	2275	sub reset {
1575	my ($self) = @_;	2276	my ($self) = @_;
1576		2277
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2278	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2279
1579	return if $self->players;	2280	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2281
1582	warn "resetting map ", $self->path;#d#	2282	warn "resetting map ", $self->path;
		2283
		2284	$self->in_memory (cf::MAP_SWAPPED);
		2285
		2286	# need to save uniques path
		2287	unless ($self->{deny_save}) {
		2288	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2289
		2290	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2291	if $uniq;
		2292	}
1583		2293
1584	delete $cf::MAP{$self->path};	2294	delete $cf::MAP{$self->path};
1585		2295
		2296	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2297	$_->clear_links_to ($self) for values %cf::MAP;
		2298	$self->clear;
1587		2299
1588	$self->unlink_save;	2300	$self->unlink_save;
1589	$self->destroy;	2301	$self->destroy;
1590	}	2302	}
1591		2303
1592	my $nuke_counter = "aaaa";	2304	my $nuke_counter = "aaaa";
1593		2305
1594	sub nuke {	2306	sub nuke {
1595	my ($self) = @_;	2307	my ($self) = @_;
1596		2308
		2309	{
		2310	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2311
		2312	delete $cf::MAP{$self->path};
		2313
		2314	$self->unlink_save;
		2315
		2316	bless $self, "cf::map";
		2317	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2318	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2319	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2320	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2321
		2322	$cf::MAP{$self->path} = $self;
		2323	}
		2324
1600	$self->reset; # polite request, might not happen	2325	$self->reset; # polite request, might not happen
1601	}	2326	}
1602		2327
1603	sub customise_for {	2328	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2329
1606	if ($map->per_player) {	2330	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2331	maps. May block.
		2332
		2333	=cut
		2334
		2335	sub tmp_maps() {
1608	}	2336	[
		2337	map {
		2338	utf8::decode $_;
		2339	/\.map$/
		2340	? normalise $_
		2341	: ()
		2342	} @{ aio_readdir $TMPDIR or [] }
		2343	]
		2344	}
1609		2345
1610	$map	2346	=item $maps = cf::map::random_maps
		2347
		2348	Returns an arrayref with all map paths of currently instantiated and saved
		2349	random maps. May block.
		2350
		2351	=cut
		2352
		2353	sub random_maps() {
		2354	[
		2355	map {
		2356	utf8::decode $_;
		2357	/\.map$/
		2358	? normalise "?random/$_"
		2359	: ()
		2360	} @{ aio_readdir $RANDOMDIR or [] }
		2361	]
1611	}	2362	}
1612		2363
1613	=item cf::map::unique_maps	2364	=item cf::map::unique_maps
1614		2365
1615	Returns an arrayref of cf::path's of all shared maps that have	2366	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2367	instantiated unique items. May block.
1617		2368
1618	=cut	2369	=cut
1619		2370
1620	sub unique_maps() {	2371	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2372	[
1622	or return;	2373	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2374	utf8::decode $_;
1628	next if /\.pst$/;	2375	/\.map$/
1629	next unless /^$PATH_SEP/o;	2376	? normalise $_
1630		2377	: ()
1631	push @paths, new cf::path $_;	2378	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2379	]
1633
1634	\@paths
1635	}	2380	}
1636
1637	package cf;
1638		2381
1639	=back	2382	=back
1640		2383
1641	=head3 cf::object	2384	=head3 cf::object
1642		2385
…		…
1657	map { $_, inv_recursive_ $_->inv } @_	2400	map { $_, inv_recursive_ $_->inv } @_
1658	}	2401	}
1659		2402
1660	sub inv_recursive {	2403	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2404	inv_recursive_ inv $_[0]
		2405	}
		2406
		2407	=item $ref = $ob->ref
		2408
		2409	creates and returns a persistent reference to an objetc that can be stored as a string.
		2410
		2411	=item $ob = cf::object::deref ($refstring)
		2412
		2413	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2414	even if the object actually exists. May block.
		2415
		2416	=cut
		2417
		2418	sub deref {
		2419	my ($ref) = @_;
		2420
		2421	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2422	my ($uuid, $name) = ($1, $2);
		2423	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2424	or return;
		2425	$pl->ob->uuid eq $uuid
		2426	or return;
		2427
		2428	$pl->ob
		2429	} else {
		2430	warn "$ref: cannot resolve object reference\n";
		2431	undef
		2432	}
1662	}	2433	}
1663		2434
1664	package cf;	2435	package cf;
1665		2436
1666	=back	2437	=back
…		…
1685		2456
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2457	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2458
1688	if ($self->{record_replies}) {	2459	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2460	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2461
1690	} else {	2462	} else {
		2463	my $pl = $self->contr;
		2464
		2465	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2466	my $dialog = $pl->{npc_dialog};
		2467	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2468
		2469	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2470	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2471	$self->message ($msg, $flags);
		2472	}
1693	}	2473	}
		2474	}
		2475
		2476	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2477
		2478	=cut
		2479
		2480	sub cf::object::send_msg {
		2481	my $pl = shift->contr
		2482	or return;
		2483	$pl->send_msg (@_);
1694	}	2484	}
1695		2485
1696	=item $player_object->may ("access")	2486	=item $player_object->may ("access")
1697		2487
1698	Returns wether the given player is authorized to access resource "access"	2488	Returns wether the given player is authorized to access resource "access"
…		…
1711		2501
1712	=item $player_object->enter_link	2502	=item $player_object->enter_link
1713		2503
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2504	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2505
1716	The player should be reaosnably safe there for short amounts of time. You	2506	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.	2507	I<MUST> call C<leave_link> as soon as possible, though.
1718		2508
		2509	Will never block.
		2510
1719	=item $player_object->leave_link ($map, $x, $y)	2511	=item $player_object->leave_link ($map, $x, $y)
1720		2512
1721	Moves the player out of the specila link map onto the given map. If the	2513	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2514	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2515	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2516	fails, to the emergency map position.
1725		2517
1726	Might block.	2518	Might block.
1727		2519
1728	=cut	2520	=cut
		2521
		2522	sub link_map {
		2523	unless ($LINK_MAP) {
		2524	$LINK_MAP = cf::map::find "{link}"
		2525	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2526	$LINK_MAP->load;
		2527	}
		2528
		2529	$LINK_MAP
		2530	}
1729		2531
1730	sub cf::object::player::enter_link {	2532	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2533	my ($self) = @_;
1732		2534
1733	$self->deactivate_recursive;	2535	$self->deactivate_recursive;
1734		2536
1735	return if $self->map == $LINK_MAP;	2537	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2538
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2539	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2540	if $self->map && $self->map->{path} ne "{link}";
1739		2541
1740	$self->enter_map ($LINK_MAP, 20, 20);	2542	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2543	}
1742		2544
1743	sub cf::object::player::leave_link {	2545	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2546	my ($self, $map, $x, $y) = @_;
		2547
		2548	return unless $self->contr->active;
1745		2549
1746	my $link_pos = delete $self->{_link_pos};	2550	my $link_pos = delete $self->{_link_pos};
1747		2551
1748	unless ($map) {	2552	unless ($map) {
1749	# restore original map position	2553	# restore original map position
…		…
1763	# use -1 or undef as default coordinates, not 0, 0	2567	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2568	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2569	if $x <=0 && $y <= 0;
1766		2570
1767	$map->load;	2571	$map->load;
1768	$map->load_diag;	2572	$map->load_neighbours;
1769		2573
1770	return unless $self->contr->active;	2574	return unless $self->contr->active;
1771	$self->activate_recursive;	2575	$self->activate_recursive;
		2576
		2577	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2578	$self->enter_map ($map, $x, $y);
1773	}	2579	}
1774		2580
1775	cf::player->attach (	2581	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2582
1779	# abort map switching before logout	2583	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2584	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2585	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2586	the new (success) or old (failed) map position. In either case, $done will
1783	};	2587	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2588
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	2589	=cut
		2590
		2591	our $GOTOGEN;
1810		2592
1811	sub cf::object::player::goto {	2593	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2594	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2595
1814	$path = new cf::path $path;	2596	# do generation counting so two concurrent goto's will be executed in-order
		2597	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2598
1816	$self->enter_link;	2599	$self->enter_link;
1817		2600
1818	(async {	2601	(async {
1819	my $map = cf::map::find $path->as_string;	2602	$Coro::current->{desc} = "player::goto $path $x $y";
		2603
		2604	# *tag paths override both path and x|y
		2605	if ($path =~ /^\*(.*)$/) {
		2606	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2607	my $ob = $obs[rand @obs];
		2608
		2609	# see if we actually can go there
		2610	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2611	$ob = $obs[rand @obs];
		2612	} else {
		2613	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2614	}
		2615	# else put us there anyways for now #d#
		2616
		2617	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2618	} else {
		2619	($path, $x, $y) = (undef, undef, undef);
		2620	}
		2621	}
		2622
		2623	my $map = eval {
		2624	my $map = defined $path ? cf::map::find $path : undef;
		2625
		2626	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2627	$map = $map->customise_for ($self);
1821		2628	$map = $check->($map) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2629	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2630	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	}
1826		2632
		2633	$map
		2634	};
		2635
		2636	if ($@) {
		2637	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2638	LOG llevError | logBacktrace, Carp::longmess $@;
		2639	}
		2640
		2641	if ($gen == $self->{_goto_generation}) {
		2642	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2643	$self->leave_link ($map, $x, $y);
		2644	}
		2645
		2646	$done->() if $done;
1828	})->prio (1);	2647	})->prio (1);
1829	}	2648	}
1830		2649
1831	=item $player_object->enter_exit ($exit_object)	2650	=item $player_object->enter_exit ($exit_object)
1832		2651
…		…
1834		2653
1835	sub parse_random_map_params {	2654	sub parse_random_map_params {
1836	my ($spec) = @_;	2655	my ($spec) = @_;
1837		2656
1838	my $rmp = { # defaults	2657	my $rmp = { # defaults
1839	xsize => 10,	2658	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2659	ysize => (cf::rndm 15, 40),
		2660	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2661	#layout => string,
1841	};	2662	};
1842		2663
1843	for (split /\n/, $spec) {	2664	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2665	my ($k, $v) = split /\s+/, $_, 2;
1845		2666
…		…
1849	$rmp	2670	$rmp
1850	}	2671	}
1851		2672
1852	sub prepare_random_map {	2673	sub prepare_random_map {
1853	my ($exit) = @_;	2674	my ($exit) = @_;
		2675
		2676	my $guard = cf::lock_acquire "exit_prepare:$exit";
1854		2677
1855	# all this does is basically replace the /! path by	2678	# all this does is basically replace the /! path by
1856	# a new random map path (?random/...) with a seed	2679	# a new random map path (?random/...) with a seed
1857	# that depends on the exit object	2680	# that depends on the exit object
1858		2681
1859	my $rmp = parse_random_map_params $exit->msg;	2682	my $rmp = parse_random_map_params $exit->msg;
1860		2683
1861	if ($exit->map) {	2684	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2685	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2686	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2687	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2688	$rmp->{origin_y} = $exit->y;
1866	}	2689	}
1867		2690
1868	$rmp->{random_seed} ||= $exit->random_seed;	2691	$rmp->{random_seed} ||= $exit->random_seed;
1869		2692
1870	my $data = cf::to_json $rmp;	2693	my $data = cf::encode_json $rmp;
1871	my $md5 = Digest::MD5::md5_hex $data;	2694	my $md5 = Digest::MD5::md5_hex $data;
		2695	my $meta = "$RANDOMDIR/$md5.meta";
1872		2696
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2697	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2698	aio_write $fh, 0, (length $data), $data, 0;
		2699	undef $fh;
		2700	aio_rename "$meta~", $meta;
1875		2701
1876	$exit->slaying ("?random/$md5");	2702	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2703	$exit->msg (undef);
1878	}	2704	}
1879	}	2705	}
…		…
1881	sub cf::object::player::enter_exit {	2707	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2708	my ($self, $exit) = @_;
1883		2709
1884	return unless $self->type == cf::PLAYER;	2710	return unless $self->type == cf::PLAYER;
1885		2711
		2712	if ($exit->slaying eq "/!") {
		2713	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2714	# the problem is that $exit might not survive long enough
		2715	# so it needs to be done right now, right here
		2716	cf::sync_job { prepare_random_map $exit };
		2717	}
		2718
		2719	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2720	my $hp = $exit->stats->hp;
		2721	my $sp = $exit->stats->sp;
		2722
1886	$self->enter_link;	2723	$self->enter_link;
1887		2724
		2725	# if exit is damned, update players death & WoR home-position
		2726	$self->contr->savebed ($slaying, $hp, $sp)
		2727	if $exit->flag (FLAG_DAMNED);
		2728
1888	(async {	2729	(async {
		2730	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2731
1889	$self->deactivate_recursive; # just to be sure	2732	$self->deactivate_recursive; # just to be sure
1890	unless (eval {	2733	unless (eval {
1891	prepare_random_map $exit	2734	$self->goto ($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		2735
1897	1;	2736	1;
1898	}) {	2737	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2738	$self->message ("Something went wrong deep within the crossfire server. "
1900	. "I'll try to bring you back to the map you were before. "	2739	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2740	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2741	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2742
1904	warn "ERROR in enter_exit: $@";	2743	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2744	$self->leave_link;
1906	}	2745	}
1907	})->prio (1);	2746	})->prio (1);
…		…
1920		2759
1921	sub cf::client::send_drawinfo {	2760	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2761	my ($self, $text, $flags) = @_;
1923		2762
1924	utf8::encode $text;	2763	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2764	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2765	}
1927		2766
		2767	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2768
		2769	Send a drawinfo or msg packet to the client, formatting the msg for the
		2770	client if neccessary. C<$type> should be a string identifying the type of
		2771	the message, with C<log> being the default. If C<$color> is negative, suppress
		2772	the message unless the client supports the msg packet.
		2773
		2774	=cut
		2775
		2776	# non-persistent channels (usually the info channel)
		2777	our %CHANNEL = (
		2778	"c/identify" => {
		2779	id => "infobox",
		2780	title => "Identify",
		2781	reply => undef,
		2782	tooltip => "Items recently identified",
		2783	},
		2784	"c/examine" => {
		2785	id => "infobox",
		2786	title => "Examine",
		2787	reply => undef,
		2788	tooltip => "Signs and other items you examined",
		2789	},
		2790	"c/book" => {
		2791	id => "infobox",
		2792	title => "Book",
		2793	reply => undef,
		2794	tooltip => "The contents of a note or book",
		2795	},
		2796	"c/lookat" => {
		2797	id => "infobox",
		2798	title => "Look",
		2799	reply => undef,
		2800	tooltip => "What you saw there",
		2801	},
		2802	"c/who" => {
		2803	id => "infobox",
		2804	title => "Players",
		2805	reply => undef,
		2806	tooltip => "Shows players who are currently online",
		2807	},
		2808	"c/body" => {
		2809	id => "infobox",
		2810	title => "Body Parts",
		2811	reply => undef,
		2812	tooltip => "Shows which body parts you posess and are available",
		2813	},
		2814	"c/uptime" => {
		2815	id => "infobox",
		2816	title => "Uptime",
		2817	reply => undef,
		2818	tooltip => "How long the server has been running since last restart",
		2819	},
		2820	"c/mapinfo" => {
		2821	id => "infobox",
		2822	title => "Map Info",
		2823	reply => undef,
		2824	tooltip => "Information related to the maps",
		2825	},
		2826	);
		2827
		2828	sub cf::client::send_msg {
		2829	my ($self, $channel, $msg, $color, @extra) = @_;
		2830
		2831	$msg = $self->pl->expand_cfpod ($msg);
		2832
		2833	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2834
		2835	# check predefined channels, for the benefit of C
		2836	if ($CHANNEL{$channel}) {
		2837	$channel = $CHANNEL{$channel};
		2838
		2839	$self->ext_msg (channel_info => $channel)
		2840	if $self->can_msg;
		2841
		2842	$channel = $channel->{id};
		2843
		2844	} elsif (ref $channel) {
		2845	# send meta info to client, if not yet sent
		2846	unless (exists $self->{channel}{$channel->{id}}) {
		2847	$self->{channel}{$channel->{id}} = $channel;
		2848	$self->ext_msg (channel_info => $channel)
		2849	if $self->can_msg;
		2850	}
		2851
		2852	$channel = $channel->{id};
		2853	}
		2854
		2855	return unless @extra || length $msg;
		2856
		2857	if ($self->can_msg) {
		2858	# default colour, mask it out
		2859	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2860	if $color & cf::NDI_DEF;
		2861
		2862	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2863	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2864	} else {
		2865	if ($color >= 0) {
		2866	# replace some tags by gcfclient-compatible ones
		2867	for ($msg) {
		2868	1 while
		2869	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2870	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2871	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2872	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2873	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2874	}
		2875
		2876	$color &= cf::NDI_COLOR_MASK;
		2877
		2878	utf8::encode $msg;
		2879
		2880	if (0 && $msg =~ /\[/) {
		2881	# COMMAND/INFO
		2882	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2883	} else {
		2884	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2885	$self->send_packet ("drawinfo $color $msg")
		2886	}
		2887	}
		2888	}
		2889	}
		2890
		2891	=item $client->ext_msg ($type, @msg)
		2892
		2893	Sends an ext event to the client.
		2894
		2895	=cut
		2896
		2897	sub cf::client::ext_msg($$@) {
		2898	my ($self, $type, @msg) = @_;
		2899
		2900	if ($self->extcmd == 2) {
		2901	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2902	} elsif ($self->extcmd == 1) { # TODO: remove
		2903	push @msg, msgtype => "event_$type";
		2904	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2905	}
		2906	}
		2907
		2908	=item $client->ext_reply ($msgid, @msg)
		2909
		2910	Sends an ext reply to the client.
		2911
		2912	=cut
		2913
		2914	sub cf::client::ext_reply($$@) {
		2915	my ($self, $id, @msg) = @_;
		2916
		2917	if ($self->extcmd == 2) {
		2918	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2919	} elsif ($self->extcmd == 1) {
		2920	#TODO: version 1, remove
		2921	unshift @msg, msgtype => "reply", msgid => $id;
		2922	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2923	}
		2924	}
1928		2925
1929	=item $success = $client->query ($flags, "text", \&cb)	2926	=item $success = $client->query ($flags, "text", \&cb)
1930		2927
1931	Queues a query to the client, calling the given callback with	2928	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>,	2929	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>.	2930	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		2931
1935	Queries can fail, so check the return code. Or don't, as queries will become	2932	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	2933	become reliable at some point in the future.
1937		2934
1938	=cut	2935	=cut
1939		2936
1940	sub cf::client::query {	2937	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	2938	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	2946	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2947	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		2948
1952	$self->send_packet ($self->{query_queue}[0][0])	2949	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	2950	if @{ $self->{query_queue} } == 1;
		2951
		2952	1
1954	}	2953	}
1955		2954
1956	cf::client->attach (	2955	cf::client->attach (
		2956	on_connect => sub {
		2957	my ($ns) = @_;
		2958
		2959	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2960	},
1957	on_reply => sub {	2961	on_reply => sub {
1958	my ($ns, $msg) = @_;	2962	my ($ns, $msg) = @_;
1959		2963
1960	# this weird shuffling is so that direct followup queries	2964	# this weird shuffling is so that direct followup queries
1961	# get handled first	2965	# get handled first
1962	my $queue = delete $ns->{query_queue}	2966	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	2967	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		2968
1965	(shift @$queue)->[1]->($msg);	2969	(shift @$queue)->[1]->($msg);
		2970	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		2971
1967	push @{ $ns->{query_queue} }, @$queue;	2972	push @{ $ns->{query_queue} }, @$queue;
1968		2973
1969	if (@{ $ns->{query_queue} } == @$queue) {	2974	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	2975	if (@$queue) {
…		…
1972	} else {	2977	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2978	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	2979	}
1975	}	2980	}
1976	},	2981	},
		2982	on_exticmd => sub {
		2983	my ($ns, $buf) = @_;
		2984
		2985	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2986
		2987	if (ref $msg) {
		2988	my ($type, $reply, @payload) =
		2989	"ARRAY" eq ref $msg
		2990	? @$msg
		2991	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2992
		2993	my @reply;
		2994
		2995	if (my $cb = $EXTICMD{$type}) {
		2996	@reply = $cb->($ns, @payload);
		2997	}
		2998
		2999	$ns->ext_reply ($reply, @reply)
		3000	if $reply;
		3001
		3002	} else {
		3003	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3004	}
		3005
		3006	cf::override;
		3007	},
1977	);	3008	);
1978		3009
1979	=item $client->async (\&cb)	3010	=item $client->async (\&cb)
1980		3011
1981	Create a new coroutine, running the specified callback. The coroutine will	3012	Create a new coroutine, running the specified callback. The coroutine will
…		…
2022	our $safe = new Safe "safe";	3053	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	3054	our $safe_hole = new Safe::Hole;
2024		3055
2025	$SIG{FPE} = 'IGNORE';	3056	$SIG{FPE} = 'IGNORE';
2026		3057
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3058	$safe->permit_only (Opcode::opset qw(
		3059	:base_core :base_mem :base_orig :base_math
		3060	grepstart grepwhile mapstart mapwhile
		3061	sort time
		3062	));
2028		3063
2029	# here we export the classes and methods available to script code	3064	# here we export the classes and methods available to script code
2030		3065
2031	=pod	3066	=pod
2032		3067
2033	The following fucntions and emthods are available within a safe environment:	3068	The following functions and methods are available within a safe environment:
2034		3069
2035	cf::object contr pay_amount pay_player map	3070	cf::object
		3071	contr pay_amount pay_player map x y force_find force_add destroy
		3072	insert remove name archname title slaying race decrease_ob_nr
		3073
2036	cf::object::player player	3074	cf::object::player
2037	cf::player peaceful	3075	player
2038	cf::map trigger	3076
		3077	cf::player
		3078	peaceful
		3079
		3080	cf::map
		3081	trigger
2039		3082
2040	=cut	3083	=cut
2041		3084
2042	for (	3085	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	3086	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3087	insert remove inv name archname title slaying race
		3088	decrease_ob_nr destroy)],
2044	["cf::object::player" => qw(player)],	3089	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	3090	["cf::player" => qw(peaceful)],
2046	["cf::map" => qw(trigger)],	3091	["cf::map" => qw(trigger)],
2047	) {	3092	) {
2048	no strict 'refs';	3093	no strict 'refs';
…		…
2119	=back	3164	=back
2120		3165
2121	=cut	3166	=cut
2122		3167
2123	#############################################################################	3168	#############################################################################
		3169	# the server's init and main functions
2124		3170
2125	=head2 EXTENSION DATABASE SUPPORT	3171	sub load_facedata($) {
		3172	my ($path) = @_;
2126		3173
2127	Crossfire maintains a very simple database for extension use. It can	3174	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	3175	# for this (global event?)
2129	excludes objects.	3176	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		3177
2131	The parameter C<$family> should best start with the name of the extension	3178	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		3179
2134	=over 4	3180	warn "loading facedata from $path\n";
2135		3181
2136	=item $hashref = cf::db_get $family	3182	my $facedata;
		3183	0 < aio_load $path, $facedata
		3184	or die "$path: $!";
2137		3185
2138	Return a hashref for use by the extension C<$family>, which can be	3186	$facedata = Coro::Storable::thaw $facedata;
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141		3187
2142	=item $value = cf::db_get $family => $key	3188	$facedata->{version} == 2
		3189	or cf::cleanup "$path: version mismatch, cannot proceed.";
2143		3190
2144	Returns a single value from the database	3191	# patch in the exptable
2145		3192	$facedata->{resource}{"res/exp_table"} = {
2146	=item cf::db_put $family => $hashref	3193	type => FT_RSRC,
2147		3194	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	});	3195	};
		3196	cf::cede_to_tick;
2197		3197
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3198	{
		3199	my $faces = $facedata->{faceinfo};
2202		3200
2203	sub db_get($;$) {	3201	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3202	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208		3203
2209	sub db_put($$;$) {	3204	cf::face::set_visibility $idx, $info->{visibility};
2210	if (@_ >= 3) {	3205	cf::face::set_magicmap $idx, $info->{magicmap};
2211	$DB->{$_[0]}{$_[1]} = $_[2];	3206	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2212	} else {	3207	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217		3208
2218	cf::global->attach (	3209	cf::cede_to_tick;
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	3210	}
2223	);
2224	}
2225		3211
2226	#############################################################################	3212	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3213	next unless $info->{smooth};
2228		3214
2229	sub cfg_load {	3215	my $idx = cf::face::find $face
		3216	or next;
		3217
		3218	if (my $smooth = cf::face::find $info->{smooth}) {
		3219	cf::face::set_smooth $idx, $smooth;
		3220	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3221	} else {
		3222	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3223	}
		3224
		3225	cf::cede_to_tick;
		3226	}
		3227	}
		3228
		3229	{
		3230	my $anims = $facedata->{animinfo};
		3231
		3232	while (my ($anim, $info) = each %$anims) {
		3233	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3234	cf::cede_to_tick;
		3235	}
		3236
		3237	cf::anim::invalidate_all; # d'oh
		3238	}
		3239
		3240	{
		3241	# TODO: for gcfclient pleasure, we should give resources
		3242	# that gcfclient doesn't grok a >10000 face index.
		3243	my $res = $facedata->{resource};
		3244
		3245	while (my ($name, $info) = each %$res) {
		3246	if (defined $info->{type}) {
		3247	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3248	my $data;
		3249
		3250	if ($info->{type} & 1) {
		3251	# prepend meta info
		3252
		3253	my $meta = $enc->encode ({
		3254	name => $name,
		3255	%{ $info->{meta} || {} },
		3256	});
		3257
		3258	$data = pack "(w/a*)*", $meta, $info->{data};
		3259	} else {
		3260	$data = $info->{data};
		3261	}
		3262
		3263	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3264	cf::face::set_type $idx, $info->{type};
		3265	} else {
		3266	$RESOURCE{$name} = $info;
		3267	}
		3268
		3269	cf::cede_to_tick;
		3270	}
		3271	}
		3272
		3273	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3274
		3275	1
		3276	}
		3277
		3278	cf::global->attach (on_resource_update => sub {
		3279	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3280	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3281
		3282	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3283	my $sound = $soundconf->{compat}[$_]
		3284	or next;
		3285
		3286	my $face = cf::face::find "sound/$sound->[1]";
		3287	cf::sound::set $sound->[0] => $face;
		3288	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3289	}
		3290
		3291	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3292	my $face = cf::face::find "sound/$v";
		3293	cf::sound::set $k => $face;
		3294	}
		3295	}
		3296	});
		3297
		3298	register_exticmd fx_want => sub {
		3299	my ($ns, $want) = @_;
		3300
		3301	while (my ($k, $v) = each %$want) {
		3302	$ns->fx_want ($k, $v);
		3303	}
		3304	};
		3305
		3306	sub reload_regions {
		3307	# HACK to clear player env face cache, we need some signal framework
		3308	# for this (global event?)
		3309	%ext::player_env::MUSIC_FACE_CACHE = ();
		3310
		3311	load_resource_file "$MAPDIR/regions"
		3312	or die "unable to load regions file\n";
		3313
		3314	for (cf::region::list) {
		3315	$_->{match} = qr/$_->{match}/
		3316	if exists $_->{match};
		3317	}
		3318	}
		3319
		3320	sub reload_facedata {
		3321	load_facedata "$DATADIR/facedata"
		3322	or die "unable to load facedata\n";
		3323	}
		3324
		3325	sub reload_archetypes {
		3326	load_resource_file "$DATADIR/archetypes"
		3327	or die "unable to load archetypes\n";
		3328	#d# NEED to laod twice to resolve forward references
		3329	# this really needs to be done in an extra post-pass
		3330	# (which needs to be synchronous, so solve it differently)
		3331	load_resource_file "$DATADIR/archetypes"
		3332	or die "unable to load archetypes\n";
		3333	}
		3334
		3335	sub reload_treasures {
		3336	load_resource_file "$DATADIR/treasures"
		3337	or die "unable to load treasurelists\n";
		3338	}
		3339
		3340	sub reload_resources {
		3341	warn "reloading resource files...\n";
		3342
		3343	reload_regions;
		3344	reload_facedata;
		3345	#reload_archetypes;#d#
		3346	reload_archetypes;
		3347	reload_treasures;
		3348
		3349	warn "finished reloading resource files\n";
		3350	}
		3351
		3352	sub init {
		3353	reload_resources;
		3354	}
		3355
		3356	sub reload_config {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3357	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	3358	or return;
2232		3359
2233	local $/;	3360	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	3361	*CFG = YAML::Load <$fh>;
2235		3362
2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3363	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2237		3364
2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3365	$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};	3366	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2249		3376
2250	sub main {	3377	sub main {
2251	# we must not ever block the main coroutine	3378	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3379	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3380	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2254	async { Event::one_event };	3381	(async {
		3382	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3383	EV::loop EV::LOOP_ONESHOT;
		3384	})->prio (Coro::PRIO_MAX);
2255	};	3385	};
2256		3386
2257	cfg_load;	3387	reload_config;
2258	db_load;	3388	db_init;
2259	load_extensions;	3389	load_extensions;
		3390
		3391	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3392	evthread_start IO::AIO::poll_fileno;
2260	Event::loop;	3393	EV::loop;
2261	}	3394	}
2262		3395
2263	#############################################################################	3396	#############################################################################
2264	# initialisation and cleanup	3397	# initialisation and cleanup
2265		3398
2266	# install some emergency cleanup handlers	3399	# install some emergency cleanup handlers
2267	BEGIN {	3400	BEGIN {
		3401	our %SIGWATCHER = ();
2268	for my $signal (qw(INT HUP TERM)) {	3402	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3403	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2270	data => WF_AUTOCANCEL,
2271	signal => $signal,
2272	cb => sub {
2273	cf::cleanup "SIG$signal";	3404	cf::cleanup "SIG$signal";
2274	},
2275	);	3405	};
		3406	}
		3407	}
		3408
		3409	sub write_runtime {
		3410	my $runtime = "$LOCALDIR/runtime";
		3411
		3412	# first touch the runtime file to show we are still running:
		3413	# the fsync below can take a very very long time.
		3414
		3415	IO::AIO::aio_utime $runtime, undef, undef;
		3416
		3417	my $guard = cf::lock_acquire "write_runtime";
		3418
		3419	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3420	or return;
		3421
		3422	my $value = $cf::RUNTIME + 90 + 10;
		3423	# 10 is the runtime save interval, for a monotonic clock
		3424	# 60 allows for the watchdog to kill the server.
		3425
		3426	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3427	and return;
		3428
		3429	# always fsync - this file is important
		3430	aio_fsync $fh
		3431	and return;
		3432
		3433	# touch it again to show we are up-to-date
		3434	aio_utime $fh, undef, undef;
		3435
		3436	close $fh
		3437	or return;
		3438
		3439	aio_rename "$runtime~", $runtime
		3440	and return;
		3441
		3442	warn "runtime file written.\n";
		3443
2276	}	3444	1
2277	}	3445	}
2278		3446
2279	sub emergency_save() {	3447	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3448	my $freeze_guard = cf::freeze_mainloop;
2281		3449
2282	warn "enter emergency perl save\n";	3450	warn "enter emergency perl save\n";
2283		3451
2284	cf::sync_job {	3452	cf::sync_job {
2285	# use a peculiar iteration method to avoid tripping on perl	3453	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3454	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3455	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3456	warn "begin emergency player save\n";
2289	for my $login (keys %cf::PLAYER) {	3457	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3458	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3459	$pl->valid or next;
		3460	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2292	$pl->save;	3461	$pl->save;
2293	}	3462	}
2294	warn "end emergency player save\n";	3463	warn "end emergency player save\n";
2295		3464
2296	warn "begin emergency map save\n";	3465	warn "begin emergency map save\n";
…		…
2298	my $map = $cf::MAP{$path} or next;	3467	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3468	$map->valid or next;
2300	$map->save;	3469	$map->save;
2301	}	3470	}
2302	warn "end emergency map save\n";	3471	warn "end emergency map save\n";
		3472
		3473	warn "begin emergency database checkpoint\n";
		3474	BDB::db_env_txn_checkpoint $DB_ENV;
		3475	warn "end emergency database checkpoint\n";
2303	};	3476	};
2304		3477
2305	warn "leave emergency perl save\n";	3478	warn "leave emergency perl save\n";
2306	}	3479	}
2307		3480
		3481	sub post_cleanup {
		3482	my ($make_core) = @_;
		3483
		3484	warn Carp::longmess "post_cleanup backtrace"
		3485	if $make_core;
		3486	}
		3487
2308	sub reload() {	3488	sub do_reload_perl() {
2309	# can/must only be called in main	3489	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3490	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	3491	warn "can only reload from main coroutine";
2312	return;	3492	return;
2313	}	3493	}
2314		3494
2315	warn "reloading...";	3495	warn "reloading...";
2316		3496
2317	warn "freezing server";	3497	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	3498
		3499	cf::sync_job {
		3500	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	3501	cf::emergency_save;
		3502	cf::write_runtime; # external watchdog should not bark
2320		3503
2321	warn "sync database to disk";	3504	warn "syncing database to disk";
2322	cf::db_sync;	3505	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		3506
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	3507	# if anything goes wrong in here, we should simply crash as we already saved
2327		3508
2328	warn "cancel all watchers";	3509	warn "flushing outstanding aio requests";
2329	for (Event::all_watchers) {	3510	for (;;) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	3511	BDB::flush;
		3512	IO::AIO::flush;
		3513	Coro::cede_notself;
		3514	last unless IO::AIO::nreqs || BDB::nreqs;
		3515	warn "iterate...";
2331	}	3516	}
2332		3517
		3518	++$RELOAD;
		3519
2333	warn "cancel all extension coros";	3520	warn "cancelling all extension coros";
2334	$_->cancel for values %EXT_CORO;	3521	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	3522	%EXT_CORO = ();
2336		3523
2337	warn "remove commands";	3524	warn "removing commands";
2338	%COMMAND = ();	3525	%COMMAND = ();
2339		3526
2340	warn "remove ext commands";	3527	warn "removing ext/exti commands";
2341	%EXTCMD = ();	3528	%EXTCMD = ();
		3529	%EXTICMD = ();
2342		3530
2343	warn "unload/nuke all extensions";	3531	warn "unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	3532	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	3533	warn "... unloading $pkg";
2346		3534
2347	if (my $cb = $pkg->can ("unload")) {	3535	if (my $cb = $pkg->can ("unload")) {
2348	eval {	3536	eval {
…		…
2353		3541
2354	warn "... nuking $pkg";	3542	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;	3543	Symbol::delete_package $pkg;
2356	}	3544	}
2357		3545
2358	warn "unload all perl modules loaded from $LIBDIR";	3546	warn "unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	3547	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3548	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		3549
2362	warn "removing <$k>";	3550	warn "... unloading $k";
2363	delete $INC{$k};	3551	delete $INC{$k};
2364		3552
2365	$k =~ s/\.pm$//;	3553	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	3554	$k =~ s/\//::/g;
2367		3555
…		…
2370	}	3558	}
2371		3559
2372	Symbol::delete_package $k;	3560	Symbol::delete_package $k;
2373	}	3561	}
2374		3562
2375	warn "get rid of safe::, as good as possible";	3563	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	3564	Symbol::delete_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3565	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		3566
2379	warn "unload cf.pm \"a bit\"";	3567	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	3568	delete $INC{"cf.pm"};
		3569	delete $INC{"cf/pod.pm"};
2381		3570
2382	# don't, removes xs symbols, too,	3571	# don't, removes xs symbols, too,
2383	# and global variables created in xs	3572	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	3573	#Symbol::delete_package __PACKAGE__;
2385		3574
		3575	warn "unload completed, starting to reload now";
		3576
2386	warn "reloading cf.pm";	3577	warn "reloading cf.pm";
2387	require cf;	3578	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3579	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		3580
2390	warn "load config and database again";	3581	warn "loading config and database again";
2391	cf::cfg_load;	3582	cf::reload_config;
2392	cf::db_load;
2393		3583
2394	warn "load extensions";	3584	warn "loading extensions";
2395	cf::load_extensions;	3585	cf::load_extensions;
2396		3586
2397	warn "reattach attachments to objects/players";	3587	warn "reattaching attachments to objects/players";
2398	_global_reattach;	3588	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	3589	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	3590	reattach $_ for values %MAP;
		3591	warn "reattaching attachments to players";
		3592	reattach $_ for values %PLAYER;
		3593
		3594	warn "leaving sync_job";
		3595
		3596	1
		3597	} or do {
		3598	warn $@;
		3599	cf::cleanup "error while reloading, exiting.";
2401	};	3600	};
2402
2403	if ($@) {
2404	warn $@;
2405	warn "error while reloading, exiting.";
2406	exit 1;
2407	}
2408		3601
2409	warn "reloaded";	3602	warn "reloaded";
2410	};	3603	};
2411		3604
2412	#############################################################################	3605	our $RELOAD_WATCHER; # used only during reload
2413		3606
2414	unless ($LINK_MAP) {	3607	sub reload_perl() {
2415	$LINK_MAP = cf::map::new;	3608	# doing reload synchronously and two reloads happen back-to-back,
		3609	# coro crashes during coro_state_free->destroy here.
2416		3610
2417	$LINK_MAP->width (41);	3611	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2418	$LINK_MAP->height (41);	3612	do_reload_perl;
2419	$LINK_MAP->alloc;	3613	undef $RELOAD_WATCHER;
2420	$LINK_MAP->path ("{link}");	3614	};
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	}	3615	}
2454		3616
2455	register_command "reload" => sub {	3617	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3618	my ($who, $arg) = @_;
2457		3619
2458	if ($who->flag (FLAG_WIZ)) {	3620	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	3621	$who->message ("reloading server.");
		3622	async {
		3623	$Coro::current->{desc} = "perl_reload";
		3624	reload_perl;
		3625	};
2462	}	3626	}
2463	};	3627	};
2464		3628
2465	unshift @INC, $LIBDIR;	3629	unshift @INC, $LIBDIR;
2466		3630
2467	$TICK_WATCHER = Event->timer (	3631	my $bug_warning = 0;
2468	reentrant => 0,	3632
2469	prio => 0,	3633	our @WAIT_FOR_TICK;
2470	at => $NEXT_TICK || $TICK,	3634	our @WAIT_FOR_TICK_BEGIN;
2471	data => WF_AUTOCANCEL,	3635
2472	cb => sub {	3636	sub wait_for_tick {
		3637	return if tick_inhibit;
		3638	return if $Coro::current == $Coro::main;
		3639
		3640	my $signal = new Coro::Signal;
		3641	push @WAIT_FOR_TICK, $signal;
		3642	$signal->wait;
		3643	}
		3644
		3645	sub wait_for_tick_begin {
		3646	return if tick_inhibit;
		3647	return if $Coro::current == $Coro::main;
		3648
		3649	my $signal = new Coro::Signal;
		3650	push @WAIT_FOR_TICK_BEGIN, $signal;
		3651	$signal->wait;
		3652	}
		3653
		3654	sub tick {
		3655	if ($Coro::current != $Coro::main) {
		3656	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3657	unless ++$bug_warning > 10;
		3658	return;
		3659	}
		3660
2473	cf::server_tick; # one server iteration	3661	cf::server_tick; # one server iteration
2474	$RUNTIME += $TICK;
2475	$NEXT_TICK += $TICK;
2476		3662
2477	$WAIT_FOR_TICK->broadcast;	3663	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2478	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3664	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2479		3665	Coro::async_pool {
2480	# if we are delayed by four ticks or more, skip them all	3666	$Coro::current->{desc} = "runtime saver";
2481	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2482
2483	$TICK_WATCHER->at ($NEXT_TICK);
2484	$TICK_WATCHER->start;
2485	},
2486	);
2487
2488	IO::AIO::max_poll_time $TICK * 0.2;
2489
2490	Event->io (
2491	fd => IO::AIO::poll_fileno,
2492	poll => 'r',
2493	prio => 5,
2494	data => WF_AUTOCANCEL,
2495	cb => \&IO::AIO::poll_cb,
2496	);
2497
2498	Event->timer (
2499	data => WF_AUTOCANCEL,
2500	after => 0,
2501	interval => 10,
2502	cb => sub {
2503	(Coro::unblock_sub {
2504	write_runtime	3667	write_runtime
2505	or warn "ERROR: unable to write runtime file: $!";	3668	or warn "ERROR: unable to write runtime file: $!";
2506	})->();	3669	};
2507	},	3670	}
2508	);	3671
		3672	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3673	$sig->send;
		3674	}
		3675	while (my $sig = shift @WAIT_FOR_TICK) {
		3676	$sig->send;
		3677	}
		3678
		3679	$LOAD = ($NOW - $TICK_START) / $TICK;
		3680	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3681
		3682	if (0) {
		3683	if ($NEXT_TICK) {
		3684	my $jitter = $TICK_START - $NEXT_TICK;
		3685	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3686	warn "jitter $JITTER\n";#d#
		3687	}
		3688	}
		3689	}
		3690
		3691	{
		3692	# configure BDB
		3693
		3694	BDB::min_parallel 8;
		3695	BDB::max_poll_reqs $TICK * 0.1;
		3696	$Coro::BDB::WATCHER->priority (1);
		3697
		3698	unless ($DB_ENV) {
		3699	$DB_ENV = BDB::db_env_create;
		3700	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3701	| BDB::LOG_AUTOREMOVE, 1);
		3702	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3703	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3704
		3705	cf::sync_job {
		3706	eval {
		3707	BDB::db_env_open
		3708	$DB_ENV,
		3709	$BDBDIR,
		3710	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3711	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3712	0666;
		3713
		3714	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3715	};
		3716
		3717	cf::cleanup "db_env_open(db): $@" if $@;
		3718	};
		3719	}
		3720
		3721	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3722	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3723	};
		3724	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3725	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3726	};
		3727	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3728	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3729	};
		3730	}
		3731
		3732	{
		3733	# configure IO::AIO
		3734
		3735	IO::AIO::min_parallel 8;
		3736	IO::AIO::max_poll_time $TICK * 0.1;
		3737	$Coro::AIO::WATCHER->priority (1);
		3738	}
		3739
		3740	my $_log_backtrace;
		3741
		3742	sub _log_backtrace {
		3743	my ($msg, @addr) = @_;
		3744
		3745	$msg =~ s/\n//;
		3746
		3747	# limit the # of concurrent backtraces
		3748	if ($_log_backtrace < 2) {
		3749	++$_log_backtrace;
		3750	async {
		3751	$Coro::current->{desc} = "abt $msg";
		3752
		3753	my @bt = fork_call {
		3754	@addr = map { sprintf "%x", $_ } @addr;
		3755	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3756	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3757	or die "addr2line: $!";
		3758
		3759	my @funcs;
		3760	my @res = <$fh>;
		3761	chomp for @res;
		3762	while (@res) {
		3763	my ($func, $line) = splice @res, 0, 2, ();
		3764	push @funcs, "[$func] $line";
		3765	}
		3766
		3767	@funcs
		3768	};
		3769
		3770	LOG llevInfo, "[ABT] $msg\n";
		3771	LOG llevInfo, "[ABT] $_\n" for @bt;
		3772	--$_log_backtrace;
		3773	};
		3774	} else {
		3775	LOG llevInfo, "[ABT] $msg\n";
		3776	LOG llevInfo, "[ABT] [suppressed]\n";
		3777	}
		3778	}
		3779
		3780	# load additional modules
		3781	use cf::pod;
2509		3782
2510	END { cf::emergency_save }	3783	END { cf::emergency_save }
2511		3784
2512	1	3785	1
2513		3786

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