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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.120 by root, Tue Jan 2 11:08:36 2007 UTC vs.
Revision 1.418 by root, Fri Apr 11 21:09:53 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 ();
		50	use Data::Dumper;
20	use Digest::MD5;	51	use Digest::MD5;
21	use Fcntl;	52	use Fcntl;
		53	use YAML ();
22	use IO::AIO 2.31 ();	54	use IO::AIO 2.51 ();
23	use YAML::Syck ();
24	use Time::HiRes;	55	use Time::HiRes;
		56	use Compress::LZF;
		57	use Digest::MD5 ();
25		58
26	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
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;
30
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		66
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		68
35	our %COMMAND = ();	69	our %COMMAND = ();
36	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
		71
		72	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
		75	our %EXT_CORO = (); # coroutines bound to extensions
		76	our %EXT_MAP = (); # pluggable maps
38		77
		78	our $RELOAD; # number of reloads so far
39	our @EVENT;	79	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		80
42	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(!)
43	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	97	our $NEXT_TICK;
45	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;
46		105
47	our %CFG;	106	our %CFG;
48		107
49	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
51		111
52	our %MAP; # all maps	112	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	113	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	114	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	115
56	our %EXT_CORO;	116	# used to convert map paths into valid unix filenames by replacing / by ∕
		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 $TICK_START; # for load detecting purposes
57		123
58	binmode STDOUT;	124	binmode STDOUT;
59	binmode STDERR;	125	binmode STDERR;
60		126
61	# read virtual server time, if available	127	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
66	}	132	}
67		133
68	mkdir cf::localdir;	134	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		136
74	# a special map that is always available	137	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		138
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	139	sub cf::map::normalise;
78		140
79	#############################################################################	141	#############################################################################
80		142
81	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
82		144
…		…
89	=item $cf::RUNTIME	151	=item $cf::RUNTIME
90		152
91	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
92	every server tick.	154	every server tick.
93		155
94	=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
95		159
96	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		164
99	=item $cf::NOW	165	=item $cf::NOW
100		166
101	The time of the last (current) server tick.	167	The time of the last (current) server tick.
102		168
103	=item $cf::TICK	169	=item $cf::TICK
104		170
105	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
106		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
107	=item %cf::CFG	183	=item %cf::CFG
108		184
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	186	from wherever your confdir points to.
		187
		188	=item cf::wait_for_tick, cf::wait_for_tick_begin
		189
		190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		191	returns directly I<after> the tick processing (and consequently, can only wake one process
		192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		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.
111		199
112	=back	200	=back
113		201
114	=cut	202	=cut
115		203
116	BEGIN {	204	BEGIN {
117	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	206	my $msg = join "", @_;
119	utf8::encode $msg;
120		207
121	$msg .= "\n"	208	$msg .= "\n"
122	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
123		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
124	LOG llevError, "cfperl: $msg";	213	LOG llevError, $msg;
125	};	214	};
126	}	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#?
127		231
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		239
135	# 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
136	# within the Safe compartment.	241	# within the Safe compartment.
137	for my $pkg (qw(	242	for my $pkg (qw(
138	cf::global cf::attachable	243	cf::global cf::attachable
…		…
143	)) {	248	)) {
144	no strict 'refs';	249	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	251	}
147		252
148	$Event::DIED = sub {	253	$EV::DIED = sub {
149	warn "error in event callback: @_";	254	warn "error in event callback: @_";
150	};	255	};
151		256
152	my %ext_pkg;	257	#############################################################################
153	my @exts;
154	my @hook;
155		258
156	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
157		260
158	=over 4	261	=over 4
159		262
160	=cut	263	=item dumpval $ref
161		264
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	265	=cut
163		266
		267	sub dumpval {
		268	eval {
		269	local $SIG{__DIE__};
		270	my $d;
		271	if (1) {
		272	$d = new Data::Dumper([$_[0]], ["*var"]);
		273	$d->Terse(1);
		274	$d->Indent(2);
		275	$d->Quotekeys(0);
		276	$d->Useqq(1);
		277	#$d->Bless(...);
		278	$d->Seen($_[1]) if @_ > 1;
		279	$d = $d->Dump();
		280	}
		281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		282	$d
		283	} || "[unable to dump $_[0]: '$@']";
		284	}
		285
164	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
165		287
166	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
167		289
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
176		291
177	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
178		293
179	=cut	294	=cut
180		295
181	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		297
186	=item my $guard = cf::guard { BLOCK }	298	sub encode_json($) { $json_coder->encode ($_[0]) }
187		299	sub decode_json($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		300
208	=item cf::lock_wait $string	301	=item cf::lock_wait $string
209		302
210	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
211		304
212	=item my $lock = cf::lock_acquire $string	305	=item my $lock = cf::lock_acquire $string
213		306
214	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
215	a 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,
216	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
217	returned.	310	returned.
218		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
219	Lock names should begin with a unique identifier (for example, find_map	315	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	316	uses map_find and cf::map::load uses map_load).
		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
221		321
222	=cut	322	=cut
223		323
224	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
225		326
226	sub lock_wait($) {	327	sub lock_wait($) {
227	my ($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#
228		334
229	# wait for lock, if any	335	# wait for lock, if any
230	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;	338	Coro::schedule;
…		…
238		344
239	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
240	lock_wait $key;	346	lock_wait $key;
241		347
242	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
243		350
244	cf::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
245	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
247	}	355	}
248	}	356	}
249		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
		364	sub freeze_mainloop {
		365	tick_inhibit_inc;
		366
		367	Coro::guard \&tick_inhibit_dec;
		368	}
		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	$sig->wait;
		441	}
		442
		443	=item cf::async { BLOCK }
		444
		445	Currently the same as Coro::async_pool, meaning you cannot use
		446	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		447	thing you are allowed to do is call C<prio> on it.
		448
		449	=cut
		450
		451	BEGIN { *async = \&Coro::async_pool }
		452
250	=item cf::sync_job { BLOCK }	453	=item cf::sync_job { BLOCK }
251		454
252	The design of crossfire+ requires that the main coro ($Coro::main) is	455	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	456	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
255		459
256	If it must be done, put the blocking parts into C<sync_job>. This will run	460	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	461	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	462	server will be frozen during this time, so the block should either finish
259	fast or be very important.	463	fast or be very important.
…		…
262		466
263	sub sync_job(&) {	467	sub sync_job(&) {
264	my ($job) = @_;	468	my ($job) = @_;
265		469
266	if ($Coro::current == $Coro::main) {	470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
267	# this is the main coro, too bad, we have to block	473	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	474	# till the operation succeeds, freezing the server :/
269		475
270	# TODO: use suspend/resume instead	476	LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	477
272	local $FREEZE = 1;	478	my $freeze_guard = freeze_mainloop;
273		479
274	my $busy = 1;	480	my $busy = 1;
275	my @res;	481	my @res;
276		482
277	(Coro::async {	483	(async {
		484	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	485	@res = eval { $job->() };
279	warn $@ if $@;	486	warn $@ if $@;
280	undef $busy;	487	undef $busy;
281	})->prio (Coro::PRIO_MAX);	488	})->prio (Coro::PRIO_MAX);
282		489
283	while ($busy) {	490	while ($busy) {
		491	if (Coro::nready) {
284	Coro::cede_notself;	492	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
286	}	495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
287		501
288	wantarray ? @res : $res[0]	502	wantarray ? @res : $res[0]
289	} else {	503	} else {
290	# we are in another coroutine, how wonderful, everything just works	504	# we are in another coroutine, how wonderful, everything just works
291		505
292	$job->()	506	$job->()
293	}	507	}
294	}	508	}
295		509
296	=item $coro = cf::coro { BLOCK }	510	=item $coro = cf::async_ext { BLOCK }
297		511
298	Creates and returns a new coro. This coro is automcatially being canceled	512	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	513	extension calling this is being unloaded.
300		514
301	=cut	515	=cut
302		516
303	sub coro(&) {	517	sub async_ext(&) {
304	my $cb = shift;	518	my $cb = shift;
305		519
306	my $coro; $coro = async {	520	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		521
313	$coro->on_destroy (sub {	522	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	523	delete $EXT_CORO{$coro+0};
315	});	524	});
316	$EXT_CORO{$coro+0} = $coro;	525	$EXT_CORO{$coro+0} = $coro;
317		526
318	$coro	527	$coro
319	}	528	}
320		529
321	sub write_runtime {	530	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		531
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	532	Executes the given code block with the given arguments in a seperate
325	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.
326		536
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	537	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		538
331	aio_fsync $fh	539	sub fork_call(&@) {
332	and return;	540	my ($cb, @args) = @_;
333		541
334	close $fh	542	# we seemingly have to make a local copy of the whole thing,
335	or return;	543	# otherwise perl prematurely frees the stuff :/
		544	# TODO: investigate and fix (likely this will be rather laborious)
336		545
337	aio_rename "$runtime~", $runtime	546	my @res = Coro::Util::fork_eval {
338	and return;	547	reset_signals;
		548	&$cb
		549	}, @args;
339		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($$) {
		623	my $key = "$_[0]/$_[1]";
		624
		625	cf::sync_job {
		626	BDB::db_get $DB, undef, $key, my $data;
		627
		628	$! ? ()
		629	: $data
340	1	630	}
		631	}
		632
		633	sub db_put($$$) {
		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 => $type });
341	}	717	}
342		718
343	=back	719	=back
344		720
345	=cut	721	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		722
467	#############################################################################	723	#############################################################################
468		724
469	=head2 ATTACHABLE OBJECTS	725	=head2 ATTACHABLE OBJECTS
470		726
…		…
472	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")
473	to it. All such attachable objects support the following methods.	729	to it. All such attachable objects support the following methods.
474		730
475	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>
476	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
477	crossfire+).	733	Deliantra).
478		734
479	=over 4	735	=over 4
480		736
481	=item $attachable->attach ($attachment, key => $value...)	737	=item $attachable->attach ($attachment, key => $value...)
482		738
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	852	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	853	our @CB_MAP = ();
598		854
599	my %attachment;	855	my %attachment;
600		856
		857	sub cf::attachable::thawer_merge {
		858	# simply override everything except _meta
		859	local $_[0]{_meta};
		860	%{$_[0]} = %{$_[1]};
		861	}
		862
601	sub _attach_cb($$$$) {	863	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	864	my ($registry, $event, $prio, $cb) = @_;
603		865
604	use sort 'stable';	866	use sort 'stable';
605		867
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	901	$registry = $CB_TYPE[$object_type] ||= [];
640		902
641	} elsif ($type eq "subtype") {	903	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	904	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	905	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	906	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		907
646	} elsif ($type eq "package") {	908	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	909	my $pkg = shift @arg;
648		910
649	while (my ($name, $id) = each %cb_id) {	911	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	940	_attach $registry, $klass, @attach;
679	}	941	}
680		942
681	$obj->{$name} = \%arg;	943	$obj->{$name} = \%arg;
682	} else {	944	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	945	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	946	}
685		947
686	$obj->{_attachment}{$name} = undef;	948	$obj->{_attachment}{$name} = undef;
687	}	949	}
688		950
…		…
690	if (ref $_[0]) {	952	if (ref $_[0]) {
691	_object_attach @_;	953	_object_attach @_;
692	} else {	954	} else {
693	_attach shift->_attach_registry, @_;	955	_attach shift->_attach_registry, @_;
694	}	956	}
		957	_recalc_want;
695	};	958	};
696		959
697	# all those should be optimised	960	# all those should be optimised
698	sub cf::attachable::detach {	961	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	962	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	965	delete $obj->{_attachment}{$name};
703	reattach ($obj);	966	reattach ($obj);
704	} else {	967	} else {
705	Carp::croak "cannot, currently, detach class attachments";	968	Carp::croak "cannot, currently, detach class attachments";
706	}	969	}
		970	_recalc_want;
707	};	971	};
708		972
709	sub cf::attachable::attached {	973	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
711		975
…		…
726	";	990	";
727	die if $@;	991	die if $@;
728	}	992	}
729		993
730	our $override;	994	our $override;
731	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?
732		996
733	sub override {	997	sub override {
734	$override = 1;	998	$override = 1;
735	@invoke_results = ();	999	@INVOKE_RESULTS = (@_);
736	}	1000	}
737		1001
738	sub do_invoke {	1002	sub do_invoke {
739	my $event = shift;	1003	my $event = shift;
740	my $callbacks = shift;	1004	my $callbacks = shift;
741		1005
742	@invoke_results = ();	1006	@INVOKE_RESULTS = ();
743		1007
744	local $override;	1008	local $override;
745		1009
746	for (@$callbacks) {	1010	for (@$callbacks) {
747	eval { &{$_->[1]} };	1011	eval { &{$_->[1]} };
…		…
756	}	1020	}
757		1021
758	0	1022	0
759	}	1023	}
760		1024
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1025	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1026
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1028
765	Generate an object-specific event with the given arguments.	1029	Generate an object-specific event with the given arguments.
766		1030
767	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
768	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
769	results (if you must, access C<@cf::invoke_results> directly).	1033	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1034
771	=back	1035	=back
772		1036
773	=cut	1037	=cut
774		1038
775	#############################################################################	1039	#############################################################################
776	# 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	}
777		1083
778	sub reattach {	1084	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1085	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	1086	my ($obj) = @_;
		1087
		1088	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		1089
782	my $registry = $obj->registry;	1090	my $registry = $obj->registry;
783		1091
784	@$registry = ();	1092	@$registry = ();
785		1093
…		…
800	cf::attachable->attach (	1108	cf::attachable->attach (
801	prio => -1000000,	1109	prio => -1000000,
802	on_instantiate => sub {	1110	on_instantiate => sub {
803	my ($obj, $data) = @_;	1111	my ($obj, $data) = @_;
804		1112
805	$data = from_json $data;	1113	$data = decode_json $data;
806		1114
807	for (@$data) {	1115	for (@$data) {
808	my ($name, $args) = @$_;	1116	my ($name, $args) = @$_;
809		1117
810	$obj->attach ($name, %{$args || {} });	1118	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1134	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1135	my ($filename, $rdata, $objs) = @_;
828		1136
829	sync_job {	1137	sync_job {
830	if (length $$rdata) {	1138	if (length $$rdata) {
		1139	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1140	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1141	$decname, length $$rdata, scalar @$objs;
833		1142
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1143	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1144	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1145	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1146	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1147	close $fh;
839		1148
840	if (@$objs) {	1149	if (@$objs) {
841	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) {
842	chmod SAVE_MODE, $fh;	1151	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1152	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1153	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1154	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1155	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1156	aio_rename "$filename.pst~", "$filename.pst";
848	}	1157	}
849	} else {	1158	} else {
850	aio_unlink "$filename.pst";	1159	aio_unlink "$filename.pst";
…		…
856	}	1165	}
857	} else {	1166	} else {
858	aio_unlink $filename;	1167	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1168	aio_unlink "$filename.pst";
860	}	1169	}
861	}	1170	};
862	}	1171	}
863		1172
864	sub object_freezer_as_string {	1173	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1174	my ($rdata, $objs) = @_;
866		1175
…		…
878	or return;	1187	or return;
879		1188
880	unless (aio_stat "$filename.pst") {	1189	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1190	(aio_load "$filename.pst", $av) >= 0
882	or return;	1191	or return;
		1192
883	$av = eval { (Storable::thaw $av)->{objs} };	1193	my $st = eval { Coro::Storable::thaw $av };
		1194	$av = $st->{objs};
884	}	1195	}
885		1196
		1197	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1198	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1199	$decname, length $data, scalar @{$av || []};
		1200
888	return ($data, $av);	1201	($data, $av)
889	}	1202	}
		1203
		1204	=head2 COMMAND CALLBACKS
		1205
		1206	=over 4
		1207
		1208	=cut
890		1209
891	#############################################################################	1210	#############################################################################
892	# command handling &c	1211	# command handling &c
893		1212
894	=item cf::register_command $name => \&callback($ob,$args);	1213	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1226	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1227	}
909		1228
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1229	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1230
912	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.
913		1236
914	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
915	called.	1238	called.
916		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
917	=cut	1251	=cut
918		1252
919	sub register_extcmd {	1253	sub register_extcmd {
920	my ($name, $cb) = @_;	1254	my ($name, $cb) = @_;
921		1255
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1256	$EXTCMD{$name} = $cb;
		1257	}
		1258
		1259	sub register_exticmd {
		1260	my ($name, $cb) = @_;
		1261
		1262	$EXTICMD{$name} = $cb;
926	}	1263	}
927		1264
928	cf::player->attach (	1265	cf::player->attach (
929	on_command => sub {	1266	on_command => sub {
930	my ($pl, $name, $params) = @_;	1267	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1276	cf::override;
940	},	1277	},
941	on_extcmd => sub {	1278	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1279	my ($pl, $buf) = @_;
943		1280
944	my $msg = eval { from_json $buf };	1281	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1282
946	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
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1291	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1292	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1293	}
		1294
		1295	$pl->ext_reply ($reply, @reply)
		1296	if $reply;
		1297
952	} else {	1298	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1299	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1300	}
955		1301
956	cf::override;	1302	cf::override;
957	},	1303	},
958	);	1304	);
959		1305
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1306	sub load_extensions {
		1307	cf::sync_job {
		1308	my %todo;
		1309
		1310	for my $path (<$LIBDIR/*.ext>) {
		1311	next unless -r $path;
		1312
		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;
		1369	}
		1370
		1371	skip:
		1372	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1373	unless $progress;
		1374	}
		1375	};
		1376	}
		1377
		1378	#############################################################################
		1379
		1380	=back
		1381
		1382	=head2 CORE EXTENSIONS
		1383
		1384	Functions and methods that extend core crossfire objects.
		1385
		1386	=cut
		1387
		1388	package cf::player;
		1389
		1390	use Coro::AIO;
		1391
		1392	=head3 cf::player
		1393
		1394	=over 4
		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
		1410	=item cf::player::find $login
		1411
		1412	Returns the given player object, loading it if necessary (might block).
		1413
		1414	=cut
		1415
		1416	sub playerdir($) {
		1417	"$PLAYERDIR/"
		1418	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1419	}
		1420
		1421	sub path($) {
		1422	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1423
		1424	(playerdir $login) . "/playerdata"
		1425	}
		1426
		1427	sub find_active($) {
		1428	$cf::PLAYER{$_[0]}
		1429	and $cf::PLAYER{$_[0]}->active
		1430	and $cf::PLAYER{$_[0]}
		1431	}
		1432
		1433	sub exists($) {
		1434	my ($login) = @_;
		1435
		1436	$cf::PLAYER{$login}
		1437	or cf::sync_job { !aio_stat path $login }
		1438	}
		1439
		1440	sub find($) {
		1441	return $cf::PLAYER{$_[0]} || do {
		1442	my $login = $_[0];
		1443
		1444	my $guard = cf::lock_acquire "user_find:$login";
		1445
		1446	$cf::PLAYER{$_[0]} || do {
		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
		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;
		1461	$cf::PLAYER{$login} = $pl
		1462	}
		1463	}
		1464	}
		1465
		1466	sub save($) {
		1467	my ($pl) = @_;
		1468
		1469	return if $pl->{deny_save};
		1470
		1471	my $path = path $pl;
		1472	my $guard = cf::lock_acquire "user_save:$path";
		1473
		1474	return if $pl->{deny_save};
		1475
		1476	aio_mkdir playerdir $pl, 0770;
		1477	$pl->{last_save} = $cf::RUNTIME;
		1478
		1479	$pl->save_pl ($path);
		1480	cf::cede_to_tick;
		1481	}
		1482
		1483	sub new($) {
		1484	my ($login) = @_;
		1485
		1486	my $self = create;
		1487
		1488	$self->ob->name ($login);
		1489	$self->{deny_save} = 1;
		1490
		1491	$cf::PLAYER{$login} = $self;
		1492
		1493	$self
		1494	}
		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
		1506	=item $pl->quit_character
		1507
		1508	Nukes the player without looking back. If logged in, the connection will
		1509	be destroyed. May block for a long time.
		1510
		1511	=cut
		1512
		1513	sub quit_character {
		1514	my ($pl) = @_;
		1515
		1516	my $name = $pl->ob->name;
		1517
		1518	$pl->{deny_save} = 1;
		1519	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1520
		1521	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1522	$pl->deactivate;
		1523	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1524	$pl->ns->destroy if $pl->ns;
		1525
		1526	my $path = playerdir $pl;
		1527	my $temp = "$path~$cf::RUNTIME~deleting~";
		1528	aio_rename $path, $temp;
		1529	delete $cf::PLAYER{$pl->ob->name};
		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
		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;
		1552	}
		1553
		1554	=item cf::player::list_logins
		1555
		1556	Returns am arrayref of all valid playernames in the system, can take a
		1557	while and may block, so not sync_job-capable, ever.
		1558
		1559	=cut
		1560
		1561	sub list_logins {
		1562	my $dirs = aio_readdir $PLAYERDIR
		1563	or return [];
		1564
		1565	my @logins;
		1566
		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") {
		1572	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1573	aio_read $fh, 0, 512, my $buf, 0 or next;
		1574	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1575	}
		1576
		1577	utf8::decode $login;
		1578	push @logins, $login;
		1579	}
		1580
		1581	\@logins
		1582	}
		1583
		1584	=item $player->maps
		1585
		1586	Returns an arrayref of map paths that are private for this
		1587	player. May block.
		1588
		1589	=cut
		1590
		1591	sub maps($) {
		1592	my ($pl) = @_;
		1593
		1594	$pl = ref $pl ? $pl->ob->name : $pl;
		1595
		1596	my $files = aio_readdir playerdir $pl
		1597	or return;
		1598
		1599	my @paths;
		1600
		1601	for (@$files) {
		1602	utf8::decode $_;
		1603	next if /\.(?:pl|pst)$/;
		1604	next unless /^$PATH_SEP/o;
		1605
		1606	push @paths, cf::map::normalise "~$pl/$_";
		1607	}
		1608
		1609	\@paths
		1610	}
		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
		1705	=item $player->ext_reply ($msgid, @msg)
		1706
		1707	Sends an ext reply to the player.
		1708
		1709	=cut
		1710
		1711	sub ext_reply($$@) {
		1712	my ($self, $id, @msg) = @_;
		1713
		1714	$self->ns->ext_reply ($id, @msg)
		1715	}
		1716
		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($) {
967	my ($path) = @_;	1744	my ($path) = @_;
968		1745
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1746	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1747
975	warn "loading '$path' into '$pkg'\n";	1748	for my $region (list) {
976		1749	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1750	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1751	if $region->specificity > $specificity;
979		1752	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1753	}
1009		1754
1010	# remove commands	1755	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1756	}
1116		1757
1117	=back	1758	=back
1118
1119		1759
1120	=head3 cf::map	1760	=head3 cf::map
1121		1761
1122	=over 4	1762	=over 4
1123		1763
…		…
1126	package cf::map;	1766	package cf::map;
1127		1767
1128	use Fcntl;	1768	use Fcntl;
1129	use Coro::AIO;	1769	use Coro::AIO;
1130		1770
		1771	use overload
		1772	'""' => \&as_string,
		1773	fallback => 1;
		1774
1131	our $MAX_RESET = 7200;	1775	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1776	our $DEFAULT_RESET = 3000;
1133		1777
1134	sub generate_random_map {	1778	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1779	my ($self, $rmp) = @_;
		1780
		1781	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1136		1782
1137	# mit "rum" bekleckern, nicht	1783	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1784	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1785	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1786	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1787	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1788	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1789	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1790	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1791	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1792	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1793	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1794	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1795	(cf::region::find $rmp->{region}), $rmp->{custom}
		1796	)
		1797	}
		1798
		1799	=item cf::map->register ($regex, $prio)
		1800
		1801	Register a handler for the map path matching the given regex at the
		1802	givne priority (higher is better, built-in handlers have priority 0, the
		1803	default).
		1804
		1805	=cut
		1806
		1807	sub register {
		1808	my (undef, $regex, $prio) = @_;
		1809	my $pkg = caller;
		1810
		1811	no strict;
		1812	push @{"$pkg\::ISA"}, __PACKAGE__;
		1813
		1814	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1815	}
		1816
		1817	# also paths starting with '/'
		1818	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1819
		1820	sub thawer_merge {
		1821	my ($self, $merge) = @_;
		1822
		1823	# we have to keep some variables in memory intact
		1824	local $self->{path};
		1825	local $self->{load_path};
		1826
		1827	$self->SUPER::thawer_merge ($merge);
		1828	}
		1829
		1830	sub normalise {
		1831	my ($path, $base) = @_;
		1832
		1833	$path = "$path"; # make sure its a string
		1834
		1835	$path =~ s/\.map$//;
		1836
		1837	# map plan:
		1838	#
		1839	# /! non-realised random map exit (special hack!)
		1840	# {... are special paths that are not being touched
		1841	# ?xxx/... are special absolute paths
		1842	# ?random/... random maps
		1843	# /... normal maps
		1844	# ~user/... per-player map of a specific user
		1845
		1846	$path =~ s/$PATH_SEP/\//go;
		1847
		1848	# treat it as relative path if it starts with
		1849	# something that looks reasonable
		1850	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1851	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1852
		1853	$base =~ s{[^/]+/?$}{};
		1854	$path = "$base/$path";
		1855	}
		1856
		1857	for ($path) {
		1858	redo if s{//}{/};
		1859	redo if s{/\.?/}{/};
		1860	redo if s{/[^/]+/\.\./}{/};
		1861	}
		1862
		1863	$path
		1864	}
		1865
		1866	sub new_from_path {
		1867	my (undef, $path, $base) = @_;
		1868
		1869	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1870
		1871	$path = normalise $path, $base;
		1872
		1873	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1874	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1875	my $self = bless cf::map::new, $pkg;
		1876	$self->{path} = $path; $self->path ($path);
		1877	$self->init; # pass $1 etc.
		1878	return $self;
		1879	}
		1880	}
		1881
		1882	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1883	()
		1884	}
		1885
		1886	sub init {
		1887	my ($self) = @_;
		1888
		1889	$self
		1890	}
		1891
		1892	sub as_string {
		1893	my ($self) = @_;
		1894
		1895	"$self->{path}"
		1896	}
		1897
		1898	# the displayed name, this is a one way mapping
		1899	sub visible_name {
		1900	&as_string
		1901	}
		1902
		1903	# the original (read-only) location
		1904	sub load_path {
		1905	my ($self) = @_;
		1906
		1907	"$MAPDIR/$self->{path}.map"
		1908	}
		1909
		1910	# the temporary/swap location
		1911	sub save_path {
		1912	my ($self) = @_;
		1913
		1914	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1915	"$TMPDIR/$path.map"
		1916	}
		1917
		1918	# the unique path, undef == no special unique path
		1919	sub uniq_path {
		1920	my ($self) = @_;
		1921
		1922	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1923	"$UNIQUEDIR/$path"
1151	}	1924	}
1152		1925
1153	# and all this just because we cannot iterate over	1926	# and all this just because we cannot iterate over
1154	# all maps in C++...	1927	# all maps in C++...
1155	sub change_all_map_light {	1928	sub change_all_map_light {
1156	my ($change) = @_;	1929	my ($change) = @_;
1157		1930
1158	$_->change_map_light ($change) for values %cf::MAP;	1931	$_->change_map_light ($change)
		1932	for grep $_->outdoor, values %cf::MAP;
1159	}	1933	}
1160		1934
		1935	sub decay_objects {
		1936	my ($self) = @_;
		1937
		1938	return if $self->{deny_reset};
		1939
		1940	$self->do_decay_objects;
		1941	}
		1942
		1943	sub unlink_save {
		1944	my ($self) = @_;
		1945
		1946	utf8::encode (my $save = $self->save_path);
		1947	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1948	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1949	}
		1950
1161	sub try_load_header($) {	1951	sub load_header_from($) {
1162	my ($path) = @_;	1952	my ($self, $path) = @_;
1163		1953
1164	utf8::encode $path;	1954	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1955	my $f = new_from_file cf::object::thawer $path
1166	or return;	1956	or return;
1167		1957
1168	my $map = cf::map::new	1958	$self->_load_header ($f)
1169	or return;	1959	or return;
1170		1960
1171	$map->load_header ($path)	1961	local $MAP_LOADING{$self->{path}} = $self;
		1962	$f->resolve_delayed_derefs;
		1963
		1964	$self->{load_path} = $path;
		1965
		1966	1
		1967	}
		1968
		1969	sub load_header_orig {
		1970	my ($self) = @_;
		1971
		1972	$self->load_header_from ($self->load_path)
		1973	}
		1974
		1975	sub load_header_temp {
		1976	my ($self) = @_;
		1977
		1978	$self->load_header_from ($self->save_path)
		1979	}
		1980
		1981	sub prepare_temp {
		1982	my ($self) = @_;
		1983
		1984	$self->last_access ((delete $self->{last_access})
		1985	|| $cf::RUNTIME); #d#
		1986	# safety
		1987	$self->{instantiate_time} = $cf::RUNTIME
		1988	if $self->{instantiate_time} > $cf::RUNTIME;
		1989	}
		1990
		1991	sub prepare_orig {
		1992	my ($self) = @_;
		1993
		1994	$self->{load_original} = 1;
		1995	$self->{instantiate_time} = $cf::RUNTIME;
		1996	$self->last_access ($cf::RUNTIME);
		1997	$self->instantiate;
		1998	}
		1999
		2000	sub load_header {
		2001	my ($self) = @_;
		2002
		2003	if ($self->load_header_temp) {
		2004	$self->prepare_temp;
		2005	} else {
		2006	$self->load_header_orig
1172	or return;	2007	or return;
		2008	$self->prepare_orig;
		2009	}
1173		2010
1174	$map->{load_path} = $path;	2011	$self->{deny_reset} = 1
		2012	if $self->no_reset;
1175		2013
1176	$map	2014	$self->default_region (cf::region::find_by_path $self->{path})
1177	}	2015	unless $self->default_region;
1178		2016
		2017	1
		2018	}
		2019
		2020	sub find;
1179	sub find_map {	2021	sub find {
1180	my ($path, $origin) = @_;	2022	my ($path, $origin) = @_;
1181		2023
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	2024	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		2025
		2026	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	2027	cf::lock_wait "map_find:$path";
1188		2028
1189	$cf::MAP{$key} || do {	2029	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	2030	my $guard1 = cf::lock_acquire "map_find:$path";
		2031	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		2032
1192	# do it the slow way	2033	my $map = new_from_path cf::map $path
1193	my $map = try_load_header $path->save_path;
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	2034	or return;
1207		2035
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215	#Coro::Timer::sleep 1;#d#
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	2036	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		2037
1222	if ($map->should_reset) {	2038	$map->load_header
		2039	or return;
		2040
		2041	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2042	# doing this can freeze the server in a sync job, obviously
		2043	#$cf::WAIT_FOR_TICK->wait;
		2044	undef $guard1;
		2045	undef $guard2;
1223	$map->reset;	2046	$map->reset;
1224	$map = find_map $path;	2047	return find $path;
1225	}	2048	}
1226		2049
1227	$cf::MAP{$key} = $map	2050	$cf::MAP{$path} = $map
1228	}	2051	}
1229	}	2052	}
		2053
		2054	sub pre_load { }
		2055	sub post_load { }
1230		2056
1231	sub load {	2057	sub load {
1232	my ($self) = @_;	2058	my ($self) = @_;
1233		2059
		2060	local $self->{deny_reset} = 1; # loading can take a long time
		2061
1234	my $path = $self->{path};	2062	my $path = $self->{path};
		2063
		2064	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2065	my $guard = cf::lock_acquire "map_data:$path";
1236		2066
		2067	return unless $self->valid;
1237	return if $self->in_memory != cf::MAP_SWAPPED;	2068	return unless $self->in_memory == cf::MAP_SWAPPED;
1238		2069
1239	$self->in_memory (cf::MAP_LOADING);	2070	$self->in_memory (cf::MAP_LOADING);
1240		2071
1241	$self->alloc;	2072	$self->alloc;
1242	$self->load_objects ($self->{load_path}, 1)	2073
		2074	$self->pre_load;
		2075	cf::cede_to_tick;
		2076
		2077	my $f = new_from_file cf::object::thawer $self->{load_path};
		2078	$f->skip_block;
		2079	$self->_load_objects ($f)
1243	or return;	2080	or return;
1244		2081
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2082	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	2083	if delete $self->{load_original};
1247		2084
1248	if (my $uniq = $path->uniq_path) {	2085	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	2086	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	2087	unless (aio_stat $uniq) {
		2088	if (my $f = new_from_file cf::object::thawer $uniq) {
1251	$self->clear_unique_items;	2089	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	2090	$self->_load_objects ($f);
		2091	$f->resolve_delayed_derefs;
		2092	}
1253	}	2093	}
1254	}	2094	}
1255		2095
		2096	$f->resolve_delayed_derefs;
		2097
		2098	cf::cede_to_tick;
1256	# now do the right thing for maps	2099	# now do the right thing for maps
1257	$self->link_multipart_objects;	2100	$self->link_multipart_objects;
1258
1259	if ($self->{path}->is_style_map) {
1260	$self->{deny_save} = 1;
1261	$self->{deny_reset} = 1;
1262	} else {
1263	$self->fix_auto_apply;
1264	$self->decay_objects;
1265	$self->update_buttons;
1266	$self->set_darkness_map;
1267	$self->difficulty ($self->estimate_difficulty)	2101	$self->difficulty ($self->estimate_difficulty)
1268	unless $self->difficulty;	2102	unless $self->difficulty;
		2103	cf::cede_to_tick;
		2104
		2105	unless ($self->{deny_activate}) {
		2106	$self->decay_objects;
		2107	$self->fix_auto_apply;
		2108	$self->update_buttons;
		2109	cf::cede_to_tick;
		2110	$self->set_darkness_map;
		2111	cf::cede_to_tick;
1269	$self->activate;	2112	$self->activate;
1270	}	2113	}
1271		2114
		2115	$self->{last_save} = $cf::RUNTIME;
		2116	$self->last_access ($cf::RUNTIME);
		2117
1272	$self->in_memory (cf::MAP_IN_MEMORY);	2118	$self->in_memory (cf::MAP_IN_MEMORY);
1273	}	2119	}
1274		2120
1275	sub load_map_sync {	2121	$self->post_load;
		2122	}
		2123
		2124	sub customise_for {
		2125	my ($self, $ob) = @_;
		2126
		2127	return find "~" . $ob->name . "/" . $self->{path}
		2128	if $self->per_player;
		2129
		2130	# return find "?party/" . $ob->name . "/" . $self->{path}
		2131	# if $self->per_party;
		2132
		2133	$self
		2134	}
		2135
		2136	# find and load all maps in the 3x3 area around a map
		2137	sub load_neighbours {
		2138	my ($map) = @_;
		2139
		2140	my @neigh; # diagonal neighbours
		2141
		2142	for (0 .. 3) {
		2143	my $neigh = $map->tile_path ($_)
		2144	or next;
		2145	$neigh = find $neigh, $map
		2146	or next;
		2147	$neigh->load;
		2148
		2149	push @neigh,
		2150	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2151	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2152	}
		2153
		2154	for (grep defined $_->[0], @neigh) {
		2155	my ($path, $origin) = @$_;
		2156	my $neigh = find $path, $origin
		2157	or next;
		2158	$neigh->load;
		2159	}
		2160	}
		2161
		2162	sub find_sync {
1276	my ($path, $origin) = @_;	2163	my ($path, $origin) = @_;
1277		2164
1278	#warn "load_map_sync<$path, $origin>\n";#d#	2165	cf::sync_job { find $path, $origin }
		2166	}
1279		2167
1280	cf::sync_job {	2168	sub do_load_sync {
1281	my $map = cf::map::find_map $path, $origin	2169	my ($map) = @_;
1282	or return;	2170
1283	$map->load;	2171	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1284	$map	2172	if $Coro::current == $Coro::main;
		2173
		2174	cf::sync_job { $map->load };
		2175	}
		2176
		2177	our %MAP_PREFETCH;
		2178	our $MAP_PREFETCHER = undef;
		2179
		2180	sub find_async {
		2181	my ($path, $origin, $load) = @_;
		2182
		2183	$path = normalise $path, $origin && $origin->{path};
		2184
		2185	if (my $map = $cf::MAP{$path}) {
		2186	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2187	}
		2188
		2189	$MAP_PREFETCH{$path} |= $load;
		2190
		2191	$MAP_PREFETCHER ||= cf::async {
		2192	$Coro::current->{desc} = "map prefetcher";
		2193
		2194	while (%MAP_PREFETCH) {
		2195	while (my ($k, $v) = each %MAP_PREFETCH) {
		2196	if (my $map = find $k) {
		2197	$map->load if $v;
		2198	}
		2199
		2200	delete $MAP_PREFETCH{$k};
		2201	}
		2202	}
		2203	undef $MAP_PREFETCHER;
1285	}	2204	};
		2205	$MAP_PREFETCHER->prio (6);
		2206
		2207	()
1286	}	2208	}
1287		2209
1288	sub save {	2210	sub save {
1289	my ($self) = @_;	2211	my ($self) = @_;
1290		2212
		2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2214
1291	$self->{last_save} = $cf::RUNTIME;	2215	$self->{last_save} = $cf::RUNTIME;
1292		2216
1293	return unless $self->dirty;	2217	return unless $self->dirty;
1294		2218
1295	my $save = $self->{path}->save_path; utf8::encode $save;	2219	my $save = $self->save_path; utf8::encode $save;
1296	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2220	my $uniq = $self->uniq_path; utf8::encode $uniq;
1297		2221
1298	$self->{load_path} = $save;	2222	$self->{load_path} = $save;
1299		2223
1300	return if $self->{deny_save};	2224	return if $self->{deny_save};
1301		2225
		2226	local $self->{last_access} = $self->last_access;#d#
		2227
		2228	cf::async {
		2229	$Coro::current->{desc} = "map player save";
		2230	$_->contr->save for $self->players;
		2231	};
		2232
1302	if ($uniq) {	2233	if ($uniq) {
1303	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2234	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1304	$self->save_objects ($uniq, cf::IO_UNIQUES);	2235	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1305	} else {	2236	} else {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2237	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1307	}	2238	}
1308	}	2239	}
1309		2240
1310	sub swap_out {	2241	sub swap_out {
1311	my ($self) = @_;	2242	my ($self) = @_;
		2243
		2244	# save first because save cedes
		2245	$self->save;
		2246
		2247	my $lock = cf::lock_acquire "map_data:$self->{path}";
1312		2248
1313	return if $self->players;	2249	return if $self->players;
1314	return if $self->in_memory != cf::MAP_IN_MEMORY;	2250	return if $self->in_memory != cf::MAP_IN_MEMORY;
1315	return if $self->{deny_save};	2251	return if $self->{deny_save};
1316		2252
		2253	$self->in_memory (cf::MAP_SWAPPED);
		2254
1317	$self->save;	2255	$self->deactivate;
		2256	$_->clear_links_to ($self) for values %cf::MAP;
1318	$self->clear;	2257	$self->clear;
1319	$self->in_memory (cf::MAP_SWAPPED);
1320	}	2258	}
1321		2259
1322	sub reset_at {	2260	sub reset_at {
1323	my ($self) = @_;	2261	my ($self) = @_;
1324		2262
1325	# TODO: safety, remove and allow resettable per-player maps	2263	# TODO: safety, remove and allow resettable per-player maps
1326	return 1e99 if $self->{path}{user_rel};
1327	return 1e99 if $self->{deny_reset};	2264	return 1e99 if $self->{deny_reset};
1328		2265
1329	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2266	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1330	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2267	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1331		2268
…		…
1336	my ($self) = @_;	2273	my ($self) = @_;
1337		2274
1338	$self->reset_at <= $cf::RUNTIME	2275	$self->reset_at <= $cf::RUNTIME
1339	}	2276	}
1340		2277
1341	sub unlink_save {
1342	my ($self) = @_;
1343
1344	utf8::encode (my $save = $self->{path}->save_path);
1345	aioreq_pri 3; IO::AIO::aio_unlink $save;
1346	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1347	}
1348
1349	sub rename {
1350	my ($self, $new_path) = @_;
1351
1352	$self->unlink_save;
1353
1354	delete $cf::MAP{$self->path};
1355	$self->{path} = new cf::path $new_path;
1356	$self->path ($self->{path}->as_string);
1357	$cf::MAP{$self->path} = $self;
1358
1359	$self->save;
1360	}
1361
1362	sub reset {	2278	sub reset {
1363	my ($self) = @_;	2279	my ($self) = @_;
1364		2280
		2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2282
1365	return if $self->players;	2283	return if $self->players;
1366	return if $self->{path}{user_rel};#d#
1367		2284
1368	warn "resetting map ", $self->path;#d#	2285	warn "resetting map ", $self->path;
		2286
		2287	$self->in_memory (cf::MAP_SWAPPED);
		2288
		2289	# need to save uniques path
		2290	unless ($self->{deny_save}) {
		2291	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2292
		2293	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2294	if $uniq;
		2295	}
1369		2296
1370	delete $cf::MAP{$self->path};	2297	delete $cf::MAP{$self->path};
1371		2298
		2299	$self->deactivate;
1372	$_->clear_links_to ($self) for values %cf::MAP;	2300	$_->clear_links_to ($self) for values %cf::MAP;
		2301	$self->clear;
1373		2302
1374	$self->unlink_save;	2303	$self->unlink_save;
1375	$self->destroy;	2304	$self->destroy;
1376	}	2305	}
1377		2306
1378	my $nuke_counter = "aaaa";	2307	my $nuke_counter = "aaaa";
1379		2308
1380	sub nuke {	2309	sub nuke {
1381	my ($self) = @_;	2310	my ($self) = @_;
1382		2311
		2312	{
		2313	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2314
		2315	delete $cf::MAP{$self->path};
		2316
		2317	$self->unlink_save;
		2318
		2319	bless $self, "cf::map";
		2320	delete $self->{deny_reset};
1383	$self->{deny_save} = 1;	2321	$self->{deny_save} = 1;
1384	$self->reset_timeout (1);	2322	$self->reset_timeout (1);
1385	$self->rename ("{nuke}/" . ($nuke_counter++));	2323	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2324
		2325	$cf::MAP{$self->path} = $self;
		2326	}
		2327
1386	$self->reset; # polite request, might not happen	2328	$self->reset; # polite request, might not happen
1387	}	2329	}
1388		2330
1389	sub customise_for {	2331	=item $maps = cf::map::tmp_maps
1390	my ($map, $ob) = @_;
1391		2332
1392	if ($map->per_player) {	2333	Returns an arrayref with all map paths of currently instantiated and saved
1393	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2334	maps. May block.
		2335
		2336	=cut
		2337
		2338	sub tmp_maps() {
1394	}	2339	[
1395		2340	map {
1396	$map	2341	utf8::decode $_;
		2342	/\.map$/
		2343	? normalise $_
		2344	: ()
		2345	} @{ aio_readdir $TMPDIR or [] }
		2346	]
1397	}	2347	}
1398		2348
1399	sub emergency_save {	2349	=item $maps = cf::map::random_maps
1400	local $cf::FREEZE = 1;
1401		2350
1402	warn "enter emergency map save\n";	2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	random maps. May block.
1403		2353
1404	cf::sync_job {	2354	=cut
1405	warn "begin emergency map save\n";	2355
1406	$_->save for values %cf::MAP;	2356	sub random_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise "?random/$_"
		2362	: ()
		2363	} @{ aio_readdir $RANDOMDIR or [] }
		2364	]
		2365	}
		2366
		2367	=item cf::map::unique_maps
		2368
		2369	Returns an arrayref of paths of all shared maps that have
		2370	instantiated unique items. May block.
		2371
		2372	=cut
		2373
		2374	sub unique_maps() {
		2375	[
		2376	map {
		2377	utf8::decode $_;
		2378	/\.map$/
		2379	? normalise $_
		2380	: ()
		2381	} @{ aio_readdir $UNIQUEDIR or [] }
		2382	]
		2383	}
		2384
		2385	=back
		2386
		2387	=head3 cf::object
		2388
		2389	=cut
		2390
		2391	package cf::object;
		2392
		2393	=over 4
		2394
		2395	=item $ob->inv_recursive
		2396
		2397	Returns the inventory of the object _and_ their inventories, recursively.
		2398
		2399	=cut
		2400
		2401	sub inv_recursive_;
		2402	sub inv_recursive_ {
		2403	map { $_, inv_recursive_ $_->inv } @_
		2404	}
		2405
		2406	sub inv_recursive {
		2407	inv_recursive_ inv $_[0]
		2408	}
		2409
		2410	=item $ref = $ob->ref
		2411
		2412	creates and returns a persistent reference to an objetc that can be stored as a string.
		2413
		2414	=item $ob = cf::object::deref ($refstring)
		2415
		2416	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2417	even if the object actually exists. May block.
		2418
		2419	=cut
		2420
		2421	sub deref {
		2422	my ($ref) = @_;
		2423
		2424	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2425	my ($uuid, $name) = ($1, $2);
		2426	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2427	or return;
		2428	$pl->ob->uuid eq $uuid
		2429	or return;
		2430
		2431	$pl->ob
		2432	} else {
		2433	warn "$ref: cannot resolve object reference\n";
		2434	undef
1407	};	2435	}
1408
1409	warn "end emergency map save\n";
1410	}	2436	}
1411		2437
1412	package cf;	2438	package cf;
1413		2439
1414	=back	2440	=back
1415
1416		2441
1417	=head3 cf::object::player	2442	=head3 cf::object::player
1418		2443
1419	=over 4	2444	=over 4
1420		2445
…		…
1434		2459
1435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1436		2461
1437	if ($self->{record_replies}) {	2462	if ($self->{record_replies}) {
1438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2464
1439	} else {	2465	} else {
		2466	my $pl = $self->contr;
		2467
		2468	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2469	my $dialog = $pl->{npc_dialog};
		2470	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2471
		2472	} else {
1440	$msg = $npc->name . " says: $msg" if $npc;	2473	$msg = $npc->name . " says: $msg" if $npc;
1441	$self->message ($msg, $flags);	2474	$self->message ($msg, $flags);
		2475	}
1442	}	2476	}
		2477	}
		2478
		2479	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2480
		2481	=cut
		2482
		2483	sub cf::object::send_msg {
		2484	my $pl = shift->contr
		2485	or return;
		2486	$pl->send_msg (@_);
1443	}	2487	}
1444		2488
1445	=item $player_object->may ("access")	2489	=item $player_object->may ("access")
1446		2490
1447	Returns wether the given player is authorized to access resource "access"	2491	Returns wether the given player is authorized to access resource "access"
…		…
1460		2504
1461	=item $player_object->enter_link	2505	=item $player_object->enter_link
1462		2506
1463	Freezes the player and moves him/her to a special map (C<{link}>).	2507	Freezes the player and moves him/her to a special map (C<{link}>).
1464		2508
1465	The player should be reaosnably safe there for short amounts of time. You	2509	The player should be reasonably safe there for short amounts of time. You
1466	I<MUST> call C<leave_link> as soon as possible, though.	2510	I<MUST> call C<leave_link> as soon as possible, though.
1467		2511
		2512	Will never block.
		2513
1468	=item $player_object->leave_link ($map, $x, $y)	2514	=item $player_object->leave_link ($map, $x, $y)
1469		2515
1470	Moves the player out of the specila link map onto the given map. If the	2516	Moves the player out of the special C<{link}> map onto the specified
1471	map is not valid (or omitted), the player will be moved back to the	2517	map. If the map is not valid (or omitted), the player will be moved back
1472	location he/she was before the call to C<enter_link>, or, if that fails,	2518	to the location he/she was before the call to C<enter_link>, or, if that
1473	to the emergency map position.	2519	fails, to the emergency map position.
1474		2520
1475	Might block.	2521	Might block.
1476		2522
1477	=cut	2523	=cut
		2524
		2525	sub link_map {
		2526	unless ($LINK_MAP) {
		2527	$LINK_MAP = cf::map::find "{link}"
		2528	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2529	$LINK_MAP->load;
		2530	}
		2531
		2532	$LINK_MAP
		2533	}
1478		2534
1479	sub cf::object::player::enter_link {	2535	sub cf::object::player::enter_link {
1480	my ($self) = @_;	2536	my ($self) = @_;
1481		2537
1482	$self->deactivate_recursive;	2538	$self->deactivate_recursive;
1483		2539
1484	return if $self->map == $LINK_MAP;	2540	return if UNIVERSAL::isa $self->map, "ext::map_link";
1485		2541
1486	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2542	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1487	if $self->map;	2543	if $self->map && $self->map->{path} ne "{link}";
1488		2544
1489	$self->enter_map ($LINK_MAP, 20, 20);	2545	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1490	}	2546	}
1491		2547
1492	sub cf::object::player::leave_link {	2548	sub cf::object::player::leave_link {
1493	my ($self, $map, $x, $y) = @_;	2549	my ($self, $map, $x, $y) = @_;
		2550
		2551	return unless $self->contr->active;
1494		2552
1495	my $link_pos = delete $self->{_link_pos};	2553	my $link_pos = delete $self->{_link_pos};
1496		2554
1497	unless ($map) {	2555	unless ($map) {
1498	# restore original map position	2556	# restore original map position
1499	($map, $x, $y) = @{ $link_pos || [] };	2557	($map, $x, $y) = @{ $link_pos || [] };
1500	$map = cf::map::find_map $map;	2558	$map = cf::map::find $map;
1501		2559
1502	unless ($map) {	2560	unless ($map) {
1503	($map, $x, $y) = @$EMERGENCY_POSITION;	2561	($map, $x, $y) = @$EMERGENCY_POSITION;
1504	$map = cf::map::find_map $map	2562	$map = cf::map::find $map
1505	or die "FATAL: cannot load emergency map\n";	2563	or die "FATAL: cannot load emergency map\n";
1506	}	2564	}
1507	}	2565	}
1508		2566
1509	($x, $y) = (-1, -1)	2567	($x, $y) = (-1, -1)
…		…
1512	# use -1 or undef as default coordinates, not 0, 0	2570	# use -1 or undef as default coordinates, not 0, 0
1513	($x, $y) = ($map->enter_x, $map->enter_y)	2571	($x, $y) = ($map->enter_x, $map->enter_y)
1514	if $x <=0 && $y <= 0;	2572	if $x <=0 && $y <= 0;
1515		2573
1516	$map->load;	2574	$map->load;
		2575	$map->load_neighbours;
1517		2576
		2577	return unless $self->contr->active;
1518	$self->activate_recursive;	2578	$self->activate_recursive;
		2579
		2580	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1519	$self->enter_map ($map, $x, $y);	2581	$self->enter_map ($map, $x, $y);
1520	}	2582	}
1521		2583
1522	cf::player->attach (	2584	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1523	on_logout => sub {
1524	my ($pl) = @_;
1525		2585
1526	# abort map switching before logout	2586	Moves the player to the given map-path and coordinates by first freezing
1527	if ($pl->ob->{_link_pos}) {	2587	her, loading and preparing them map, calling the provided $check callback
1528	cf::sync_job {	2588	that has to return the map if sucecssful, and then unfreezes the player on
1529	$pl->ob->leave_link	2589	the new (success) or old (failed) map position. In either case, $done will
1530	};	2590	be called at the end of this process.
1531	}
1532	},
1533	on_login => sub {
1534	my ($pl) = @_;
1535		2591
1536	# try to abort aborted map switching on player login :)
1537	# should happen only on crashes
1538	if ($pl->ob->{_link_pos}) {
1539	$pl->ob->enter_link;
1540	Coro::async {
1541	# we need this sleep as the login has a concurrent enter_exit running
1542	# and this sleep increases chances of the player not ending up in scorn
1543	Coro::Timer::sleep 1;
1544	$pl->ob->leave_link;
1545	};
1546	}
1547	},
1548	);
1549
1550	=item $player_object->goto_map ($path, $x, $y)
1551
1552	=cut	2592	=cut
1553		2593
		2594	our $GOTOGEN;
		2595
1554	sub cf::object::player::goto_map {	2596	sub cf::object::player::goto {
1555	my ($self, $path, $x, $y) = @_;	2597	my ($self, $path, $x, $y, $check, $done) = @_;
		2598
		2599	# do generation counting so two concurrent goto's will be executed in-order
		2600	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1556		2601
1557	$self->enter_link;	2602	$self->enter_link;
1558		2603
1559	(Coro::async {	2604	(async {
1560	$path = new cf::path $path;	2605	$Coro::current->{desc} = "player::goto $path $x $y";
1561		2606
1562	my $map = cf::map::find_map $path->as_string;	2607	# *tag paths override both path and x|y
		2608	if ($path =~ /^\*(.*)$/) {
		2609	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2610	my $ob = $obs[rand @obs];
		2611
		2612	# see if we actually can go there
		2613	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2614	$ob = $obs[rand @obs];
		2615	} else {
		2616	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
		2618	# else put us there anyways for now #d#
		2619
		2620	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2621	} else {
		2622	($path, $x, $y) = (undef, undef, undef);
		2623	}
		2624	}
		2625
		2626	my $map = eval {
		2627	my $map = defined $path ? cf::map::find $path : undef;
		2628
		2629	if ($map) {
1563	$map = $map->customise_for ($self) if $map;	2630	$map = $map->customise_for ($self);
1564		2631	$map = $check->($map) if $check && $map;
1565	# warn "entering ", $map->path, " at ($x, $y)\n"	2632	} else {
1566	# if $map;
1567
1568	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2633	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2634	}
1569		2635
		2636	$map
		2637	};
		2638
		2639	if ($@) {
		2640	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2641	LOG llevError | logBacktrace, Carp::longmess $@;
		2642	}
		2643
		2644	if ($gen == $self->{_goto_generation}) {
		2645	delete $self->{_goto_generation};
1570	$self->leave_link ($map, $x, $y);	2646	$self->leave_link ($map, $x, $y);
		2647	}
		2648
		2649	$done->() if $done;
1571	})->prio (1);	2650	})->prio (1);
1572	}	2651	}
1573		2652
1574	=item $player_object->enter_exit ($exit_object)	2653	=item $player_object->enter_exit ($exit_object)
1575		2654
…		…
1577		2656
1578	sub parse_random_map_params {	2657	sub parse_random_map_params {
1579	my ($spec) = @_;	2658	my ($spec) = @_;
1580		2659
1581	my $rmp = { # defaults	2660	my $rmp = { # defaults
1582	xsize => 10,	2661	xsize => (cf::rndm 15, 40),
1583	ysize => 10,	2662	ysize => (cf::rndm 15, 40),
		2663	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2664	#layout => string,
1584	};	2665	};
1585		2666
1586	for (split /\n/, $spec) {	2667	for (split /\n/, $spec) {
1587	my ($k, $v) = split /\s+/, $_, 2;	2668	my ($k, $v) = split /\s+/, $_, 2;
1588		2669
…		…
1592	$rmp	2673	$rmp
1593	}	2674	}
1594		2675
1595	sub prepare_random_map {	2676	sub prepare_random_map {
1596	my ($exit) = @_;	2677	my ($exit) = @_;
		2678
		2679	my $guard = cf::lock_acquire "exit_prepare:$exit";
1597		2680
1598	# all this does is basically replace the /! path by	2681	# all this does is basically replace the /! path by
1599	# a new random map path (?random/...) with a seed	2682	# a new random map path (?random/...) with a seed
1600	# that depends on the exit object	2683	# that depends on the exit object
1601		2684
1602	my $rmp = parse_random_map_params $exit->msg;	2685	my $rmp = parse_random_map_params $exit->msg;
1603		2686
1604	if ($exit->map) {	2687	if ($exit->map) {
1605	$rmp->{region} = $exit->map->region_name;	2688	$rmp->{region} = $exit->region->name;
1606	$rmp->{origin_map} = $exit->map->path;	2689	$rmp->{origin_map} = $exit->map->path;
1607	$rmp->{origin_x} = $exit->x;	2690	$rmp->{origin_x} = $exit->x;
1608	$rmp->{origin_y} = $exit->y;	2691	$rmp->{origin_y} = $exit->y;
1609	}	2692	}
1610		2693
1611	$rmp->{random_seed} ||= $exit->random_seed;	2694	$rmp->{random_seed} ||= $exit->random_seed;
1612		2695
1613	my $data = cf::to_json $rmp;	2696	my $data = cf::encode_json $rmp;
1614	my $md5 = Digest::MD5::md5_hex $data;	2697	my $md5 = Digest::MD5::md5_hex $data;
		2698	my $meta = "$RANDOMDIR/$md5.meta";
1615		2699
1616	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2700	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1617	aio_write $fh, 0, (length $data), $data, 0;	2701	aio_write $fh, 0, (length $data), $data, 0;
		2702	undef $fh;
		2703	aio_rename "$meta~", $meta;
1618		2704
1619	$exit->slaying ("?random/$md5");	2705	$exit->slaying ("?random/$md5");
1620	$exit->msg (undef);	2706	$exit->msg (undef);
1621	}	2707	}
1622	}	2708	}
…		…
1624	sub cf::object::player::enter_exit {	2710	sub cf::object::player::enter_exit {
1625	my ($self, $exit) = @_;	2711	my ($self, $exit) = @_;
1626		2712
1627	return unless $self->type == cf::PLAYER;	2713	return unless $self->type == cf::PLAYER;
1628		2714
		2715	if ($exit->slaying eq "/!") {
		2716	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2717	# the problem is that $exit might not survive long enough
		2718	# so it needs to be done right now, right here
		2719	cf::sync_job { prepare_random_map $exit };
		2720	}
		2721
		2722	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2723	my $hp = $exit->stats->hp;
		2724	my $sp = $exit->stats->sp;
		2725
1629	$self->enter_link;	2726	$self->enter_link;
1630		2727
		2728	# if exit is damned, update players death & WoR home-position
		2729	$self->contr->savebed ($slaying, $hp, $sp)
		2730	if $exit->flag (FLAG_DAMNED);
		2731
1631	(Coro::async {	2732	(async {
		2733	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2734
		2735	$self->deactivate_recursive; # just to be sure
1632	unless (eval {	2736	unless (eval {
1633		2737	$self->goto ($slaying, $hp, $sp);
1634	prepare_random_map $exit
1635	if $exit->slaying eq "/!";
1636
1637	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1638	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1639		2738
1640	1;	2739	1;
1641	}) {	2740	}) {
1642	$self->message ("Something went wrong deep within the crossfire server. "	2741	$self->message ("Something went wrong deep within the crossfire server. "
1643	. "I'll try to bring you back to the map you were before. "	2742	. "I'll try to bring you back to the map you were before. "
1644	. "Please report this to the dungeon master",	2743	. "Please report this to the dungeon master!",
1645	cf::NDI_UNIQUE | cf::NDI_RED);	2744	cf::NDI_UNIQUE | cf::NDI_RED);
1646		2745
1647	warn "ERROR in enter_exit: $@";	2746	warn "ERROR in enter_exit: $@";
1648	$self->leave_link;	2747	$self->leave_link;
1649	}	2748	}
1650	})->prio (1);	2749	})->prio (1);
…		…
1663		2762
1664	sub cf::client::send_drawinfo {	2763	sub cf::client::send_drawinfo {
1665	my ($self, $text, $flags) = @_;	2764	my ($self, $text, $flags) = @_;
1666		2765
1667	utf8::encode $text;	2766	utf8::encode $text;
1668	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2767	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1669	}	2768	}
1670		2769
		2770	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2771
		2772	Send a drawinfo or msg packet to the client, formatting the msg for the
		2773	client if neccessary. C<$type> should be a string identifying the type of
		2774	the message, with C<log> being the default. If C<$color> is negative, suppress
		2775	the message unless the client supports the msg packet.
		2776
		2777	=cut
		2778
		2779	# non-persistent channels (usually the info channel)
		2780	our %CHANNEL = (
		2781	"c/identify" => {
		2782	id => "infobox",
		2783	title => "Identify",
		2784	reply => undef,
		2785	tooltip => "Items recently identified",
		2786	},
		2787	"c/examine" => {
		2788	id => "infobox",
		2789	title => "Examine",
		2790	reply => undef,
		2791	tooltip => "Signs and other items you examined",
		2792	},
		2793	"c/book" => {
		2794	id => "infobox",
		2795	title => "Book",
		2796	reply => undef,
		2797	tooltip => "The contents of a note or book",
		2798	},
		2799	"c/lookat" => {
		2800	id => "infobox",
		2801	title => "Look",
		2802	reply => undef,
		2803	tooltip => "What you saw there",
		2804	},
		2805	"c/who" => {
		2806	id => "infobox",
		2807	title => "Players",
		2808	reply => undef,
		2809	tooltip => "Shows players who are currently online",
		2810	},
		2811	"c/body" => {
		2812	id => "infobox",
		2813	title => "Body Parts",
		2814	reply => undef,
		2815	tooltip => "Shows which body parts you posess and are available",
		2816	},
		2817	"c/uptime" => {
		2818	id => "infobox",
		2819	title => "Uptime",
		2820	reply => undef,
		2821	tooltip => "How long the server has been running since last restart",
		2822	},
		2823	"c/mapinfo" => {
		2824	id => "infobox",
		2825	title => "Map Info",
		2826	reply => undef,
		2827	tooltip => "Information related to the maps",
		2828	},
		2829	);
		2830
		2831	sub cf::client::send_msg {
		2832	my ($self, $channel, $msg, $color, @extra) = @_;
		2833
		2834	$msg = $self->pl->expand_cfpod ($msg);
		2835
		2836	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2837
		2838	# check predefined channels, for the benefit of C
		2839	if ($CHANNEL{$channel}) {
		2840	$channel = $CHANNEL{$channel};
		2841
		2842	$self->ext_msg (channel_info => $channel)
		2843	if $self->can_msg;
		2844
		2845	$channel = $channel->{id};
		2846
		2847	} elsif (ref $channel) {
		2848	# send meta info to client, if not yet sent
		2849	unless (exists $self->{channel}{$channel->{id}}) {
		2850	$self->{channel}{$channel->{id}} = $channel;
		2851	$self->ext_msg (channel_info => $channel)
		2852	if $self->can_msg;
		2853	}
		2854
		2855	$channel = $channel->{id};
		2856	}
		2857
		2858	return unless @extra || length $msg;
		2859
		2860	if ($self->can_msg) {
		2861	# default colour, mask it out
		2862	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2863	if $color & cf::NDI_DEF;
		2864
		2865	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2866	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2867	} else {
		2868	if ($color >= 0) {
		2869	# replace some tags by gcfclient-compatible ones
		2870	for ($msg) {
		2871	1 while
		2872	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2873	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2874	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2875	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2876	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2877	}
		2878
		2879	$color &= cf::NDI_COLOR_MASK;
		2880
		2881	utf8::encode $msg;
		2882
		2883	if (0 && $msg =~ /\[/) {
		2884	# COMMAND/INFO
		2885	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2886	} else {
		2887	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2888	$self->send_packet ("drawinfo $color $msg")
		2889	}
		2890	}
		2891	}
		2892	}
		2893
		2894	=item $client->ext_msg ($type, @msg)
		2895
		2896	Sends an ext event to the client.
		2897
		2898	=cut
		2899
		2900	sub cf::client::ext_msg($$@) {
		2901	my ($self, $type, @msg) = @_;
		2902
		2903	if ($self->extcmd == 2) {
		2904	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2905	} elsif ($self->extcmd == 1) { # TODO: remove
		2906	push @msg, msgtype => "event_$type";
		2907	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2908	}
		2909	}
		2910
		2911	=item $client->ext_reply ($msgid, @msg)
		2912
		2913	Sends an ext reply to the client.
		2914
		2915	=cut
		2916
		2917	sub cf::client::ext_reply($$@) {
		2918	my ($self, $id, @msg) = @_;
		2919
		2920	if ($self->extcmd == 2) {
		2921	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2922	} elsif ($self->extcmd == 1) {
		2923	#TODO: version 1, remove
		2924	unshift @msg, msgtype => "reply", msgid => $id;
		2925	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2926	}
		2927	}
1671		2928
1672	=item $success = $client->query ($flags, "text", \&cb)	2929	=item $success = $client->query ($flags, "text", \&cb)
1673		2930
1674	Queues a query to the client, calling the given callback with	2931	Queues a query to the client, calling the given callback with
1675	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1676	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1677		2934
1678	Queries can fail, so check the return code. Or don't, as queries will become	2935	Queries can fail, so check the return code. Or don't, as queries will
1679	reliable at some point in the future.	2936	become reliable at some point in the future.
1680		2937
1681	=cut	2938	=cut
1682		2939
1683	sub cf::client::query {	2940	sub cf::client::query {
1684	my ($self, $flags, $text, $cb) = @_;	2941	my ($self, $flags, $text, $cb) = @_;
…		…
1692	utf8::encode $text;	2949	utf8::encode $text;
1693	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1694		2951
1695	$self->send_packet ($self->{query_queue}[0][0])	2952	$self->send_packet ($self->{query_queue}[0][0])
1696	if @{ $self->{query_queue} } == 1;	2953	if @{ $self->{query_queue} } == 1;
		2954
		2955	1
1697	}	2956	}
1698		2957
1699	cf::client->attach (	2958	cf::client->attach (
		2959	on_connect => sub {
		2960	my ($ns) = @_;
		2961
		2962	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2963	},
1700	on_reply => sub {	2964	on_reply => sub {
1701	my ($ns, $msg) = @_;	2965	my ($ns, $msg) = @_;
1702		2966
1703	# this weird shuffling is so that direct followup queries	2967	# this weird shuffling is so that direct followup queries
1704	# get handled first	2968	# get handled first
1705	my $queue = delete $ns->{query_queue};	2969	my $queue = delete $ns->{query_queue}
		2970	or return; # be conservative, not sure how that can happen, but we saw a crash here
1706		2971
1707	(shift @$queue)->[1]->($msg);	2972	(shift @$queue)->[1]->($msg);
		2973	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1708		2974
1709	push @{ $ns->{query_queue} }, @$queue;	2975	push @{ $ns->{query_queue} }, @$queue;
1710		2976
1711	if (@{ $ns->{query_queue} } == @$queue) {	2977	if (@{ $ns->{query_queue} } == @$queue) {
1712	if (@$queue) {	2978	if (@$queue) {
…		…
1714	} else {	2980	} else {
1715	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2981	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1716	}	2982	}
1717	}	2983	}
1718	},	2984	},
		2985	on_exticmd => sub {
		2986	my ($ns, $buf) = @_;
		2987
		2988	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2989
		2990	if (ref $msg) {
		2991	my ($type, $reply, @payload) =
		2992	"ARRAY" eq ref $msg
		2993	? @$msg
		2994	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2995
		2996	my @reply;
		2997
		2998	if (my $cb = $EXTICMD{$type}) {
		2999	@reply = $cb->($ns, @payload);
		3000	}
		3001
		3002	$ns->ext_reply ($reply, @reply)
		3003	if $reply;
		3004
		3005	} else {
		3006	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3007	}
		3008
		3009	cf::override;
		3010	},
1719	);	3011	);
1720		3012
1721	=item $client->coro (\&cb)	3013	=item $client->async (\&cb)
1722		3014
1723	Create a new coroutine, running the specified callback. The coroutine will	3015	Create a new coroutine, running the specified callback. The coroutine will
1724	be automatically cancelled when the client gets destroyed (e.g. on logout,	3016	be automatically cancelled when the client gets destroyed (e.g. on logout,
1725	or loss of connection).	3017	or loss of connection).
1726		3018
1727	=cut	3019	=cut
1728		3020
1729	sub cf::client::coro {	3021	sub cf::client::async {
1730	my ($self, $cb) = @_;	3022	my ($self, $cb) = @_;
1731		3023
1732	my $coro; $coro = async {	3024	my $coro = &Coro::async ($cb);
1733	eval {
1734	$cb->();
1735	};
1736	warn $@ if $@;
1737	};
1738		3025
1739	$coro->on_destroy (sub {	3026	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	3027	delete $self->{_coro}{$coro+0};
1741	});	3028	});
1742		3029
…		…
1769	our $safe = new Safe "safe";	3056	our $safe = new Safe "safe";
1770	our $safe_hole = new Safe::Hole;	3057	our $safe_hole = new Safe::Hole;
1771		3058
1772	$SIG{FPE} = 'IGNORE';	3059	$SIG{FPE} = 'IGNORE';
1773		3060
1774	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3061	$safe->permit_only (Opcode::opset qw(
		3062	:base_core :base_mem :base_orig :base_math
		3063	grepstart grepwhile mapstart mapwhile
		3064	sort time
		3065	));
1775		3066
1776	# here we export the classes and methods available to script code	3067	# here we export the classes and methods available to script code
1777		3068
1778	=pod	3069	=pod
1779		3070
1780	The following fucntions and emthods are available within a safe environment:	3071	The following functions and methods are available within a safe environment:
1781		3072
1782	cf::object contr pay_amount pay_player map	3073	cf::object
		3074	contr pay_amount pay_player map x y force_find force_add destroy
		3075	insert remove name archname title slaying race decrease_ob_nr
		3076
1783	cf::object::player player	3077	cf::object::player
1784	cf::player peaceful	3078	player
1785	cf::map trigger	3079
		3080	cf::player
		3081	peaceful
		3082
		3083	cf::map
		3084	trigger
1786		3085
1787	=cut	3086	=cut
1788		3087
1789	for (	3088	for (
1790	["cf::object" => qw(contr pay_amount pay_player map)],	3089	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3090	insert remove inv name archname title slaying race
		3091	decrease_ob_nr destroy)],
1791	["cf::object::player" => qw(player)],	3092	["cf::object::player" => qw(player)],
1792	["cf::player" => qw(peaceful)],	3093	["cf::player" => qw(peaceful)],
1793	["cf::map" => qw(trigger)],	3094	["cf::map" => qw(trigger)],
1794	) {	3095	) {
1795	no strict 'refs';	3096	no strict 'refs';
…		…
1866	=back	3167	=back
1867		3168
1868	=cut	3169	=cut
1869		3170
1870	#############################################################################	3171	#############################################################################
		3172	# the server's init and main functions
1871		3173
1872	=head2 EXTENSION DATABASE SUPPORT	3174	sub load_facedata($) {
		3175	my ($path) = @_;
1873		3176
1874	Crossfire maintains a very simple database for extension use. It can	3177	# HACK to clear player env face cache, we need some signal framework
1875	currently store anything that can be serialised using Storable, which	3178	# for this (global event?)
1876	excludes objects.	3179	%ext::player_env::MUSIC_FACE_CACHE = ();
1877		3180
1878	The parameter C<$family> should best start with the name of the extension	3181	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1879	using it, it should be unique.
1880		3182
1881	=over 4	3183	warn "loading facedata from $path\n";
1882		3184
1883	=item $hashref = cf::db_get $family	3185	my $facedata;
		3186	0 < aio_load $path, $facedata
		3187	or die "$path: $!";
1884		3188
1885	Return a hashref for use by the extension C<$family>, which can be	3189	$facedata = Coro::Storable::thaw $facedata;
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888		3190
1889	=item $value = cf::db_get $family => $key	3191	$facedata->{version} == 2
		3192	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		3193
1891	Returns a single value from the database	3194	# patch in the exptable
1892		3195	$facedata->{resource}{"res/exp_table"} = {
1893	=item cf::db_put $family => $hashref	3196	type => FT_RSRC,
1894		3197	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	warn "loading database $path\n";#d# remove later
1920	$DB = stat $path ? Storable::retrieve $path : { };
1921	}
1922
1923	my $pid;
1924
1925	sub db_save() {
1926	warn "saving database $path\n";#d# remove later
1927	waitpid $pid, 0 if $pid;
1928	if (0 == ($pid = fork)) {
1929	$DB->{_meta}{version} = 1;
1930	Storable::nstore $DB, "$path~";
1931	rename "$path~", $path;
1932	cf::_exit 0 if defined $pid;
1933	}
1934	}
1935
1936	my $dirty;
1937
1938	sub db_sync() {
1939	db_save if $dirty;
1940	undef $dirty;
1941	}
1942
1943	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944	db_sync;
1945	});	3198	};
		3199	cf::cede_to_tick;
1946		3200
1947	sub db_dirty() {
1948	$dirty = 1;
1949	$idle->start;
1950	}	3201	{
		3202	my $faces = $facedata->{faceinfo};
1951		3203
1952	sub db_get($;$) {	3204	while (my ($face, $info) = each %$faces) {
1953	@_ >= 2	3205	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1954	? $DB->{$_[0]}{$_[1]}
1955	: ($DB->{$_[0]} ||= { })
1956	}
1957		3206
1958	sub db_put($$;$) {	3207	cf::face::set_visibility $idx, $info->{visibility};
1959	if (@_ >= 3) {	3208	cf::face::set_magicmap $idx, $info->{magicmap};
1960	$DB->{$_[0]}{$_[1]} = $_[2];	3209	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1961	} else {	3210	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1962	$DB->{$_[0]} = $_[1];
1963	}
1964	db_dirty;
1965	}
1966		3211
1967	cf::global->attach (	3212	cf::cede_to_tick;
1968	prio => 10000,
1969	on_cleanup => sub {
1970	db_sync;
1971	},	3213	}
1972	);
1973	}
1974		3214
1975	#############################################################################	3215	while (my ($face, $info) = each %$faces) {
1976	# the server's main()	3216	next unless $info->{smooth};
1977		3217
1978	sub cfg_load {	3218	my $idx = cf::face::find $face
		3219	or next;
		3220
		3221	if (my $smooth = cf::face::find $info->{smooth}) {
		3222	cf::face::set_smooth $idx, $smooth;
		3223	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3224	} else {
		3225	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3226	}
		3227
		3228	cf::cede_to_tick;
		3229	}
		3230	}
		3231
		3232	{
		3233	my $anims = $facedata->{animinfo};
		3234
		3235	while (my ($anim, $info) = each %$anims) {
		3236	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3237	cf::cede_to_tick;
		3238	}
		3239
		3240	cf::anim::invalidate_all; # d'oh
		3241	}
		3242
		3243	{
		3244	# TODO: for gcfclient pleasure, we should give resources
		3245	# that gcfclient doesn't grok a >10000 face index.
		3246	my $res = $facedata->{resource};
		3247
		3248	while (my ($name, $info) = each %$res) {
		3249	if (defined $info->{type}) {
		3250	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3251	my $data;
		3252
		3253	if ($info->{type} & 1) {
		3254	# prepend meta info
		3255
		3256	my $meta = $enc->encode ({
		3257	name => $name,
		3258	%{ $info->{meta} || {} },
		3259	});
		3260
		3261	$data = pack "(w/a*)*", $meta, $info->{data};
		3262	} else {
		3263	$data = $info->{data};
		3264	}
		3265
		3266	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3267	cf::face::set_type $idx, $info->{type};
		3268	} else {
		3269	$RESOURCE{$name} = $info;
		3270	}
		3271
		3272	cf::cede_to_tick;
		3273	}
		3274	}
		3275
		3276	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3277
		3278	1
		3279	}
		3280
		3281	cf::global->attach (on_resource_update => sub {
		3282	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3283	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3284
		3285	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3286	my $sound = $soundconf->{compat}[$_]
		3287	or next;
		3288
		3289	my $face = cf::face::find "sound/$sound->[1]";
		3290	cf::sound::set $sound->[0] => $face;
		3291	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3292	}
		3293
		3294	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3295	my $face = cf::face::find "sound/$v";
		3296	cf::sound::set $k => $face;
		3297	}
		3298	}
		3299	});
		3300
		3301	register_exticmd fx_want => sub {
		3302	my ($ns, $want) = @_;
		3303
		3304	while (my ($k, $v) = each %$want) {
		3305	$ns->fx_want ($k, $v);
		3306	}
		3307	};
		3308
		3309	sub reload_regions {
		3310	# HACK to clear player env face cache, we need some signal framework
		3311	# for this (global event?)
		3312	%ext::player_env::MUSIC_FACE_CACHE = ();
		3313
		3314	load_resource_file "$MAPDIR/regions"
		3315	or die "unable to load regions file\n";
		3316
		3317	for (cf::region::list) {
		3318	$_->{match} = qr/$_->{match}/
		3319	if exists $_->{match};
		3320	}
		3321	}
		3322
		3323	sub reload_facedata {
		3324	load_facedata "$DATADIR/facedata"
		3325	or die "unable to load facedata\n";
		3326	}
		3327
		3328	sub reload_archetypes {
		3329	load_resource_file "$DATADIR/archetypes"
		3330	or die "unable to load archetypes\n";
		3331	#d# NEED to laod twice to resolve forward references
		3332	# this really needs to be done in an extra post-pass
		3333	# (which needs to be synchronous, so solve it differently)
		3334	load_resource_file "$DATADIR/archetypes"
		3335	or die "unable to load archetypes\n";
		3336	}
		3337
		3338	sub reload_treasures {
		3339	load_resource_file "$DATADIR/treasures"
		3340	or die "unable to load treasurelists\n";
		3341	}
		3342
		3343	sub reload_resources {
		3344	warn "reloading resource files...\n";
		3345
		3346	reload_regions;
		3347	reload_facedata;
		3348	#reload_archetypes;#d#
		3349	reload_archetypes;
		3350	reload_treasures;
		3351
		3352	warn "finished reloading resource files\n";
		3353	}
		3354
		3355	sub init {
		3356	reload_resources;
		3357	}
		3358
		3359	sub reload_config {
1979	open my $fh, "<:utf8", cf::confdir . "/config"	3360	open my $fh, "<:utf8", "$CONFDIR/config"
1980	or return;	3361	or return;
1981		3362
1982	local $/;	3363	local $/;
1983	*CFG = YAML::Syck::Load <$fh>;	3364	*CFG = YAML::Load <$fh>;
		3365
		3366	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3367
		3368	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3369	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3370
		3371	if (exists $CFG{mlockall}) {
		3372	eval {
		3373	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3374	and die "WARNING: m(un)lockall failed: $!\n";
		3375	};
		3376	warn $@ if $@;
		3377	}
1984	}	3378	}
1985		3379
1986	sub main {	3380	sub main {
1987	# we must not ever block the main coroutine	3381	# we must not ever block the main coroutine
1988	local $Coro::idle = sub {	3382	local $Coro::idle = sub {
1989	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3383	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990	(Coro::unblock_sub {	3384	(async {
1991	Event::one_event;	3385	$Coro::current->{desc} = "IDLE BUG HANDLER";
1992	})->();	3386	EV::loop EV::LOOP_ONESHOT;
		3387	})->prio (Coro::PRIO_MAX);
1993	};	3388	};
1994		3389
1995	cfg_load;	3390	reload_config;
1996	db_load;	3391	db_init;
1997	load_extensions;	3392	load_extensions;
		3393
		3394	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3395	evthread_start IO::AIO::poll_fileno;
1998	Event::loop;	3396	EV::loop;
1999	}	3397	}
2000		3398
2001	#############################################################################	3399	#############################################################################
2002	# initialisation	3400	# initialisation and cleanup
2003		3401
		3402	# install some emergency cleanup handlers
		3403	BEGIN {
		3404	our %SIGWATCHER = ();
		3405	for my $signal (qw(INT HUP TERM)) {
		3406	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3407	cf::cleanup "SIG$signal";
		3408	};
		3409	}
		3410	}
		3411
		3412	sub write_runtime_sync {
		3413	my $runtime = "$LOCALDIR/runtime";
		3414
		3415	# first touch the runtime file to show we are still running:
		3416	# the fsync below can take a very very long time.
		3417
		3418	IO::AIO::aio_utime $runtime, undef, undef;
		3419
		3420	my $guard = cf::lock_acquire "write_runtime";
		3421
		3422	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3423	or return;
		3424
		3425	my $value = $cf::RUNTIME + 90 + 10;
		3426	# 10 is the runtime save interval, for a monotonic clock
		3427	# 60 allows for the watchdog to kill the server.
		3428
		3429	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3430	and return;
		3431
		3432	# always fsync - this file is important
		3433	aio_fsync $fh
		3434	and return;
		3435
		3436	# touch it again to show we are up-to-date
		3437	aio_utime $fh, undef, undef;
		3438
		3439	close $fh
		3440	or return;
		3441
		3442	aio_rename "$runtime~", $runtime
		3443	and return;
		3444
		3445	warn "runtime file written.\n";
		3446
		3447	1
		3448	}
		3449
		3450	our $uuid_lock;
		3451	our $uuid_skip;
		3452
		3453	sub write_uuid_sync($) {
		3454	$uuid_skip ||= $_[0];
		3455
		3456	return if $uuid_lock;
		3457	local $uuid_lock = 1;
		3458
		3459	my $uuid = "$LOCALDIR/uuid";
		3460
		3461	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3462	or return;
		3463
		3464	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3465	$uuid_skip = 0;
		3466
		3467	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3468	and return;
		3469
		3470	# always fsync - this file is important
		3471	aio_fsync $fh
		3472	and return;
		3473
		3474	close $fh
		3475	or return;
		3476
		3477	aio_rename "$uuid~", $uuid
		3478	and return;
		3479
		3480	warn "uuid file written ($value).\n";
		3481
		3482	1
		3483
		3484	}
		3485
		3486	sub write_uuid($$) {
		3487	my ($skip, $sync) = @_;
		3488
		3489	$sync ? write_uuid_sync $skip
		3490	: async { write_uuid_sync $skip };
		3491	}
		3492
		3493	sub emergency_save() {
		3494	my $freeze_guard = cf::freeze_mainloop;
		3495
		3496	warn "enter emergency perl save\n";
		3497
		3498	cf::sync_job {
		3499	# use a peculiar iteration method to avoid tripping on perl
		3500	# refcount bugs in for. also avoids problems with players
		3501	# and maps saved/destroyed asynchronously.
		3502	warn "begin emergency player save\n";
		3503	for my $login (keys %cf::PLAYER) {
		3504	my $pl = $cf::PLAYER{$login} or next;
		3505	$pl->valid or next;
		3506	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3507	$pl->save;
		3508	}
		3509	warn "end emergency player save\n";
		3510
		3511	warn "begin emergency map save\n";
		3512	for my $path (keys %cf::MAP) {
		3513	my $map = $cf::MAP{$path} or next;
		3514	$map->valid or next;
		3515	$map->save;
		3516	}
		3517	warn "end emergency map save\n";
		3518
		3519	warn "begin emergency database checkpoint\n";
		3520	BDB::db_env_txn_checkpoint $DB_ENV;
		3521	warn "end emergency database checkpoint\n";
		3522
		3523	warn "begin write uuid\n";
		3524	write_uuid_sync 1;
		3525	warn "end write uuid\n";
		3526	};
		3527
		3528	warn "leave emergency perl save\n";
		3529	}
		3530
		3531	sub post_cleanup {
		3532	my ($make_core) = @_;
		3533
		3534	warn Carp::longmess "post_cleanup backtrace"
		3535	if $make_core;
		3536	}
		3537
2004	sub reload() {	3538	sub do_reload_perl() {
2005	# can/must only be called in main	3539	# can/must only be called in main
2006	if ($Coro::current != $Coro::main) {	3540	if ($Coro::current != $Coro::main) {
2007	warn "can only reload from main coroutine\n";	3541	warn "can only reload from main coroutine";
2008	return;	3542	return;
2009	}	3543	}
2010		3544
2011	warn "reloading...";	3545	warn "reloading...";
2012		3546
2013	local $FREEZE = 1;	3547	warn "entering sync_job";
		3548
		3549	cf::sync_job {
		3550	cf::write_runtime_sync; # external watchdog should not bark
2014	cf::emergency_save;	3551	cf::emergency_save;
		3552	cf::write_runtime_sync; # external watchdog should not bark
2015		3553
2016	eval {	3554	warn "syncing database to disk";
		3555	BDB::db_env_txn_checkpoint $DB_ENV;
		3556
2017	# if anything goes wrong in here, we should simply crash as we already saved	3557	# if anything goes wrong in here, we should simply crash as we already saved
2018		3558
2019	# cancel all watchers	3559	warn "flushing outstanding aio requests";
2020	for (Event::all_watchers) {	3560	for (;;) {
2021	$_->cancel if $_->data & WF_AUTOCANCEL;	3561	BDB::flush;
		3562	IO::AIO::flush;
		3563	Coro::cede_notself;
		3564	last unless IO::AIO::nreqs || BDB::nreqs;
		3565	warn "iterate...";
2022	}	3566	}
2023		3567
		3568	++$RELOAD;
		3569
2024	# cancel all extension coros	3570	warn "cancelling all extension coros";
2025	$_->cancel for values %EXT_CORO;	3571	$_->cancel for values %EXT_CORO;
2026	%EXT_CORO = ();	3572	%EXT_CORO = ();
2027		3573
2028	# unload all extensions	3574	warn "removing commands";
2029	for (@exts) {	3575	%COMMAND = ();
		3576
		3577	warn "removing ext/exti commands";
		3578	%EXTCMD = ();
		3579	%EXTICMD = ();
		3580
		3581	warn "unloading/nuking all extensions";
		3582	for my $pkg (@EXTS) {
2030	warn "unloading <$_>";	3583	warn "... unloading $pkg";
2031	unload_extension $_;	3584
		3585	if (my $cb = $pkg->can ("unload")) {
		3586	eval {
		3587	$cb->($pkg);
		3588	1
		3589	} or warn "$pkg unloaded, but with errors: $@";
2032	}	3590	}
2033		3591
		3592	warn "... nuking $pkg";
		3593	Symbol::delete_package $pkg;
		3594	}
		3595
2034	# unload all modules loaded from $LIBDIR	3596	warn "unloading all perl modules loaded from $LIBDIR";
2035	while (my ($k, $v) = each %INC) {	3597	while (my ($k, $v) = each %INC) {
2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3598	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2037		3599
2038	warn "removing <$k>";	3600	warn "... unloading $k";
2039	delete $INC{$k};	3601	delete $INC{$k};
2040		3602
2041	$k =~ s/\.pm$//;	3603	$k =~ s/\.pm$//;
2042	$k =~ s/\//::/g;	3604	$k =~ s/\//::/g;
2043		3605
…		…
2046	}	3608	}
2047		3609
2048	Symbol::delete_package $k;	3610	Symbol::delete_package $k;
2049	}	3611	}
2050		3612
2051	# sync database to disk
2052	cf::db_sync;
2053	IO::AIO::flush;
2054
2055	# get rid of safe::, as good as possible	3613	warn "getting rid of safe::, as good as possible";
2056	Symbol::delete_package "safe::$_"	3614	Symbol::delete_package "safe::$_"
2057	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3615	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058		3616
2059	# remove register_script_function callbacks
2060	# TODO
2061
2062	# unload cf.pm "a bit"	3617	warn "unloading cf.pm \"a bit\"";
2063	delete $INC{"cf.pm"};	3618	delete $INC{"cf.pm"};
		3619	delete $INC{"cf/pod.pm"};
2064		3620
2065	# don't, removes xs symbols, too,	3621	# don't, removes xs symbols, too,
2066	# and global variables created in xs	3622	# and global variables created in xs
2067	#Symbol::delete_package __PACKAGE__;	3623	#Symbol::delete_package __PACKAGE__;
2068		3624
2069	# reload cf.pm	3625	warn "unload completed, starting to reload now";
		3626
2070	warn "reloading cf.pm";	3627	warn "reloading cf.pm";
2071	require cf;	3628	require cf;
2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3629	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2073		3630
2074	# load config and database again	3631	warn "loading config and database again";
2075	cf::cfg_load;	3632	cf::reload_config;
2076	cf::db_load;
2077		3633
2078	# load extensions
2079	warn "load extensions";	3634	warn "loading extensions";
2080	cf::load_extensions;	3635	cf::load_extensions;
2081		3636
2082	# reattach attachments to objects	3637	warn "reattaching attachments to objects/players";
2083	warn "reattach";	3638	_global_reattach; # objects, sockets
2084	_global_reattach;	3639	warn "reattaching attachments to maps";
		3640	reattach $_ for values %MAP;
		3641	warn "reattaching attachments to players";
		3642	reattach $_ for values %PLAYER;
		3643
		3644	warn "leaving sync_job";
		3645
		3646	1
		3647	} or do {
		3648	warn $@;
		3649	cf::cleanup "error while reloading, exiting.";
2085	};	3650	};
2086		3651
2087	if ($@) {	3652	warn "reloaded";
2088	warn $@;
2089	warn "error while reloading, exiting.";
2090	exit 1;
2091	}
2092
2093	warn "reloaded successfully";
2094	};	3653	};
2095		3654
2096	#############################################################################	3655	our $RELOAD_WATCHER; # used only during reload
2097		3656
2098	unless ($LINK_MAP) {	3657	sub reload_perl() {
2099	$LINK_MAP = cf::map::new;	3658	# doing reload synchronously and two reloads happen back-to-back,
		3659	# coro crashes during coro_state_free->destroy here.
2100		3660
2101	$LINK_MAP->width (41);	3661	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2102	$LINK_MAP->height (41);	3662	do_reload_perl;
2103	$LINK_MAP->alloc;	3663	undef $RELOAD_WATCHER;
2104	$LINK_MAP->path ("{link}");	3664	};
2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108	# dirty hack because... archetypes are not yet loaded
2109	Event->timer (
2110	after => 2,
2111	cb => sub {
2112	$_[0]->w->cancel;
2113
2114	# provide some exits "home"
2115	my $exit = cf::object::new "exit";
2116
2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121	$LINK_MAP->insert ($exit->clone, 19, 19);
2122	$LINK_MAP->insert ($exit->clone, 19, 20);
2123	$LINK_MAP->insert ($exit->clone, 19, 21);
2124	$LINK_MAP->insert ($exit->clone, 20, 19);
2125	$LINK_MAP->insert ($exit->clone, 20, 21);
2126	$LINK_MAP->insert ($exit->clone, 21, 19);
2127	$LINK_MAP->insert ($exit->clone, 21, 20);
2128	$LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130	$exit->destroy;
2131	});
2132
2133	$LINK_MAP->{deny_save} = 1;
2134	$LINK_MAP->{deny_reset} = 1;
2135
2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137	}	3665	}
2138
2139	register "<global>", __PACKAGE__;
2140		3666
2141	register_command "reload" => sub {	3667	register_command "reload" => sub {
2142	my ($who, $arg) = @_;	3668	my ($who, $arg) = @_;
2143		3669
2144	if ($who->flag (FLAG_WIZ)) {	3670	if ($who->flag (FLAG_WIZ)) {
2145	$who->message ("start of reload.");
2146	reload;
2147	$who->message ("end of reload.");	3671	$who->message ("reloading server.");
		3672	async {
		3673	$Coro::current->{desc} = "perl_reload";
		3674	reload_perl;
		3675	};
2148	}	3676	}
2149	};	3677	};
2150		3678
2151	unshift @INC, $LIBDIR;	3679	unshift @INC, $LIBDIR;
2152		3680
2153	$TICK_WATCHER = Event->timer (	3681	my $bug_warning = 0;
2154	reentrant => 0,	3682
2155	prio => 0,	3683	our @WAIT_FOR_TICK;
2156	at => $NEXT_TICK || $TICK,	3684	our @WAIT_FOR_TICK_BEGIN;
2157	data => WF_AUTOCANCEL,	3685
2158	cb => sub {	3686	sub wait_for_tick {
2159	unless ($FREEZE) {	3687	return if tick_inhibit;
		3688	return if $Coro::current == $Coro::main;
		3689
		3690	my $signal = new Coro::Signal;
		3691	push @WAIT_FOR_TICK, $signal;
		3692	$signal->wait;
		3693	}
		3694
		3695	sub wait_for_tick_begin {
		3696	return if tick_inhibit;
		3697	return if $Coro::current == $Coro::main;
		3698
		3699	my $signal = new Coro::Signal;
		3700	push @WAIT_FOR_TICK_BEGIN, $signal;
		3701	$signal->wait;
		3702	}
		3703
		3704	sub tick {
		3705	if ($Coro::current != $Coro::main) {
		3706	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3707	unless ++$bug_warning > 10;
		3708	return;
		3709	}
		3710
2160	cf::server_tick; # one server iteration	3711	cf::server_tick; # one server iteration
2161	$RUNTIME += $TICK;
2162	}
2163		3712
2164	$NEXT_TICK += $TICK;	3713	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2165		3714	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2166	# if we are delayed by four ticks or more, skip them all	3715	Coro::async_pool {
2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3716	$Coro::current->{desc} = "runtime saver";
2168
2169	$TICK_WATCHER->at ($NEXT_TICK);
2170	$TICK_WATCHER->start;
2171	},
2172	);
2173
2174	IO::AIO::max_poll_time $TICK * 0.2;
2175
2176	Event->io (
2177	fd => IO::AIO::poll_fileno,
2178	poll => 'r',
2179	prio => 5,
2180	data => WF_AUTOCANCEL,
2181	cb => \&IO::AIO::poll_cb,
2182	);
2183
2184	Event->timer (
2185	data => WF_AUTOCANCEL,
2186	after => 0,
2187	interval => 10,
2188	cb => sub {
2189	(Coro::unblock_sub {
2190	write_runtime	3717	write_runtime_sync
2191	or warn "ERROR: unable to write runtime file: $!";	3718	or warn "ERROR: unable to write runtime file: $!";
2192	})->();	3719	};
2193	},	3720	}
2194	);	3721
		3722	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3723	$sig->send;
		3724	}
		3725	while (my $sig = shift @WAIT_FOR_TICK) {
		3726	$sig->send;
		3727	}
		3728
		3729	$LOAD = ($NOW - $TICK_START) / $TICK;
		3730	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3731
		3732	if (0) {
		3733	if ($NEXT_TICK) {
		3734	my $jitter = $TICK_START - $NEXT_TICK;
		3735	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3736	warn "jitter $JITTER\n";#d#
		3737	}
		3738	}
		3739	}
		3740
		3741	{
		3742	# configure BDB
		3743
		3744	BDB::min_parallel 8;
		3745	BDB::max_poll_reqs $TICK * 0.1;
		3746	$Coro::BDB::WATCHER->priority (1);
		3747
		3748	unless ($DB_ENV) {
		3749	$DB_ENV = BDB::db_env_create;
		3750	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3751	| BDB::LOG_AUTOREMOVE, 1);
		3752	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3753	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3754
		3755	cf::sync_job {
		3756	eval {
		3757	BDB::db_env_open
		3758	$DB_ENV,
		3759	$BDBDIR,
		3760	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3761	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3762	0666;
		3763
		3764	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3765	};
		3766
		3767	cf::cleanup "db_env_open(db): $@" if $@;
		3768	};
		3769	}
		3770
		3771	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3772	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3773	};
		3774	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3775	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3776	};
		3777	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3778	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3779	};
		3780	}
		3781
		3782	{
		3783	# configure IO::AIO
		3784
		3785	IO::AIO::min_parallel 8;
		3786	IO::AIO::max_poll_time $TICK * 0.1;
		3787	$Coro::AIO::WATCHER->priority (1);
		3788	}
		3789
		3790	my $_log_backtrace;
		3791
		3792	sub _log_backtrace {
		3793	my ($msg, @addr) = @_;
		3794
		3795	$msg =~ s/\n//;
		3796
		3797	# limit the # of concurrent backtraces
		3798	if ($_log_backtrace < 2) {
		3799	++$_log_backtrace;
		3800	async {
		3801	$Coro::current->{desc} = "abt $msg";
		3802
		3803	my @bt = fork_call {
		3804	@addr = map { sprintf "%x", $_ } @addr;
		3805	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3806	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3807	or die "addr2line: $!";
		3808
		3809	my @funcs;
		3810	my @res = <$fh>;
		3811	chomp for @res;
		3812	while (@res) {
		3813	my ($func, $line) = splice @res, 0, 2, ();
		3814	push @funcs, "[$func] $line";
		3815	}
		3816
		3817	@funcs
		3818	};
		3819
		3820	LOG llevInfo, "[ABT] $msg\n";
		3821	LOG llevInfo, "[ABT] $_\n" for @bt;
		3822	--$_log_backtrace;
		3823	};
		3824	} else {
		3825	LOG llevInfo, "[ABT] $msg\n";
		3826	LOG llevInfo, "[ABT] [suppressed]\n";
		3827	}
		3828	}
		3829
		3830	# load additional modules
		3831	use cf::pod;
		3832
		3833	END { cf::emergency_save }
2195		3834
2196	1	3835	1
2197		3836

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