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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.128 by root, Wed Jan 3 00:28:47 2007 UTC vs.
Revision 1.415 by root, Thu Apr 10 15:35:16 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
3	use utf8;	24	use utf8;
4	use strict;	25	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV 3.2;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro 3.3 ();	36	use Coro 4.50 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::EV;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
18	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
19		47
		48	use JSON::XS 2.01 ();
		49	use BDB ();
		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	$sig->wait;
		441	}
		442
250	=item cf::async { BLOCK }	443	=item cf::async { BLOCK }
251		444
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	445	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	446	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		447	thing you are allowed to do is call C<prio> on it.
254		448
255	=cut	449	=cut
256		450
257	sub async(&) {	451	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		452
266	=item cf::sync_job { BLOCK }	453	=item cf::sync_job { BLOCK }
267		454
268	The design of crossfire+ requires that the main coro ($Coro::main) is	455	The design of Deliantra requires that the main coroutine ($Coro::main)
269	always able to handle events or runnable, as crossfire+ is only partly	456	is always able to handle events or runnable, as Deliantra is only
270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
271		459
272	If it must be done, put the blocking parts into C<sync_job>. This will run	460	If it must be done, put the blocking parts into C<sync_job>. This will run
273	the given BLOCK in another coroutine while waiting for the result. The	461	the given BLOCK in another coroutine while waiting for the result. The
274	server will be frozen during this time, so the block should either finish	462	server will be frozen during this time, so the block should either finish
275	fast or be very important.	463	fast or be very important.
…		…
278		466
279	sub sync_job(&) {	467	sub sync_job(&) {
280	my ($job) = @_;	468	my ($job) = @_;
281		469
282	if ($Coro::current == $Coro::main) {	470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
283	# this is the main coro, too bad, we have to block	473	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	474	# till the operation succeeds, freezing the server :/
285		475
286	# TODO: use suspend/resume instead	476	LOG llevError, Carp::longmess "sync job";#d#
287	# (but this is cancel-safe)	477
288	local $FREEZE = 1;	478	my $freeze_guard = freeze_mainloop;
289		479
290	my $busy = 1;	480	my $busy = 1;
291	my @res;	481	my @res;
292		482
293	(Coro::async {	483	(async {
		484	$Coro::current->desc ("sync job coro");
294	@res = eval { $job->() };	485	@res = eval { $job->() };
295	warn $@ if $@;	486	warn $@ if $@;
296	undef $busy;	487	undef $busy;
297	})->prio (Coro::PRIO_MAX);	488	})->prio (Coro::PRIO_MAX);
298		489
299	while ($busy) {	490	while ($busy) {
		491	if (Coro::nready) {
300	Coro::cede_notself;	492	Coro::cede_notself;
301	Event::one_event unless Coro::nready;	493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
302	}	495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
303		501
304	wantarray ? @res : $res[0]	502	wantarray ? @res : $res[0]
305	} else {	503	} else {
306	# we are in another coroutine, how wonderful, everything just works	504	# we are in another coroutine, how wonderful, everything just works
307		505
308	$job->()	506	$job->()
309	}	507	}
310	}	508	}
311		509
312	=item $coro = cf::coro { BLOCK }	510	=item $coro = cf::async_ext { BLOCK }
313		511
314	Creates and returns a new coro. This coro is automcatially being canceled	512	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	513	extension calling this is being unloaded.
316		514
317	=cut	515	=cut
318		516
319	sub coro(&) {	517	sub async_ext(&) {
320	my $cb = shift;	518	my $cb = shift;
321		519
322	my $coro = &cf::async ($cb);	520	my $coro = &Coro::async ($cb);
323		521
324	$coro->on_destroy (sub {	522	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	523	delete $EXT_CORO{$coro+0};
326	});	524	});
327	$EXT_CORO{$coro+0} = $coro;	525	$EXT_CORO{$coro+0} = $coro;
328		526
329	$coro	527	$coro
330	}	528	}
331		529
332	sub write_runtime {	530	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		531
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	532	Executes the given code block with the given arguments in a seperate
336	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.
337		536
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	537	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		538
342	aio_fsync $fh	539	sub fork_call(&@) {
343	and return;	540	my ($cb, @args) = @_;
344		541
345	close $fh	542	# we seemingly have to make a local copy of the whole thing,
346	or return;	543	# otherwise perl prematurely frees the stuff :/
		544	# TODO: investigate and fix (likely this will be rather laborious)
347		545
348	aio_rename "$runtime~", $runtime	546	my @res = Coro::Util::fork_eval {
349	and return;	547	reset_signals;
		548	&$cb
		549	}, @args;
350		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($$) {
		623	my $key = "$_[0]/$_[1]";
		624
		625	cf::sync_job {
		626	BDB::db_get $DB, undef, $key, my $data;
		627
		628	$! ? ()
		629	: $data
351	1	630	}
		631	}
		632
		633	sub db_put($$$) {
		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 => $type });
352	}	717	}
353		718
354	=back	719	=back
355		720
356	=cut	721	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		722
478	#############################################################################	723	#############################################################################
479		724
480	=head2 ATTACHABLE OBJECTS	725	=head2 ATTACHABLE OBJECTS
481		726
…		…
483	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")
484	to it. All such attachable objects support the following methods.	729	to it. All such attachable objects support the following methods.
485		730
486	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>
487	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
488	crossfire+).	733	Deliantra).
489		734
490	=over 4	735	=over 4
491		736
492	=item $attachable->attach ($attachment, key => $value...)	737	=item $attachable->attach ($attachment, key => $value...)
493		738
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	852	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	853	our @CB_MAP = ();
609		854
610	my %attachment;	855	my %attachment;
611		856
		857	sub cf::attachable::thawer_merge {
		858	# simply override everything except _meta
		859	local $_[0]{_meta};
		860	%{$_[0]} = %{$_[1]};
		861	}
		862
612	sub _attach_cb($$$$) {	863	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	864	my ($registry, $event, $prio, $cb) = @_;
614		865
615	use sort 'stable';	866	use sort 'stable';
616		867
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	901	$registry = $CB_TYPE[$object_type] ||= [];
651		902
652	} elsif ($type eq "subtype") {	903	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	904	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	905	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	906	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		907
657	} elsif ($type eq "package") {	908	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	909	my $pkg = shift @arg;
659		910
660	while (my ($name, $id) = each %cb_id) {	911	while (my ($name, $id) = each %cb_id) {
…		…
689	_attach $registry, $klass, @attach;	940	_attach $registry, $klass, @attach;
690	}	941	}
691		942
692	$obj->{$name} = \%arg;	943	$obj->{$name} = \%arg;
693	} else {	944	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	945	warn "object uses attachment '$name' which is not available, postponing.\n";
695	}	946	}
696		947
697	$obj->{_attachment}{$name} = undef;	948	$obj->{_attachment}{$name} = undef;
698	}	949	}
699		950
…		…
701	if (ref $_[0]) {	952	if (ref $_[0]) {
702	_object_attach @_;	953	_object_attach @_;
703	} else {	954	} else {
704	_attach shift->_attach_registry, @_;	955	_attach shift->_attach_registry, @_;
705	}	956	}
		957	_recalc_want;
706	};	958	};
707		959
708	# all those should be optimised	960	# all those should be optimised
709	sub cf::attachable::detach {	961	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	962	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	965	delete $obj->{_attachment}{$name};
714	reattach ($obj);	966	reattach ($obj);
715	} else {	967	} else {
716	Carp::croak "cannot, currently, detach class attachments";	968	Carp::croak "cannot, currently, detach class attachments";
717	}	969	}
		970	_recalc_want;
718	};	971	};
719		972
720	sub cf::attachable::attached {	973	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
722		975
…		…
737	";	990	";
738	die if $@;	991	die if $@;
739	}	992	}
740		993
741	our $override;	994	our $override;
742	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?
743		996
744	sub override {	997	sub override {
745	$override = 1;	998	$override = 1;
746	@invoke_results = ();	999	@INVOKE_RESULTS = (@_);
747	}	1000	}
748		1001
749	sub do_invoke {	1002	sub do_invoke {
750	my $event = shift;	1003	my $event = shift;
751	my $callbacks = shift;	1004	my $callbacks = shift;
752		1005
753	@invoke_results = ();	1006	@INVOKE_RESULTS = ();
754		1007
755	local $override;	1008	local $override;
756		1009
757	for (@$callbacks) {	1010	for (@$callbacks) {
758	eval { &{$_->[1]} };	1011	eval { &{$_->[1]} };
…		…
767	}	1020	}
768		1021
769	0	1022	0
770	}	1023	}
771		1024
772	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1025	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
773		1026
774	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
775		1028
776	Generate an object-specific event with the given arguments.	1029	Generate an object-specific event with the given arguments.
777		1030
778	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
779	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
780	results (if you must, access C<@cf::invoke_results> directly).	1033	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
781		1034
782	=back	1035	=back
783		1036
784	=cut	1037	=cut
785		1038
786	#############################################################################	1039	#############################################################################
787	# 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	}
788		1083
789	sub reattach {	1084	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	1085	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	1086	my ($obj) = @_;
		1087
		1088	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		1089
793	my $registry = $obj->registry;	1090	my $registry = $obj->registry;
794		1091
795	@$registry = ();	1092	@$registry = ();
796		1093
…		…
811	cf::attachable->attach (	1108	cf::attachable->attach (
812	prio => -1000000,	1109	prio => -1000000,
813	on_instantiate => sub {	1110	on_instantiate => sub {
814	my ($obj, $data) = @_;	1111	my ($obj, $data) = @_;
815		1112
816	$data = from_json $data;	1113	$data = decode_json $data;
817		1114
818	for (@$data) {	1115	for (@$data) {
819	my ($name, $args) = @$_;	1116	my ($name, $args) = @$_;
820		1117
821	$obj->attach ($name, %{$args || {} });	1118	$obj->attach ($name, %{$args || {} });
…		…
837	sub object_freezer_save {	1134	sub object_freezer_save {
838	my ($filename, $rdata, $objs) = @_;	1135	my ($filename, $rdata, $objs) = @_;
839		1136
840	sync_job {	1137	sync_job {
841	if (length $$rdata) {	1138	if (length $$rdata) {
		1139	utf8::decode (my $decname = $filename);
842	warn sprintf "saving %s (%d,%d)\n",	1140	warn sprintf "saving %s (%d,%d)\n",
843	$filename, length $$rdata, scalar @$objs;	1141	$decname, length $$rdata, scalar @$objs;
844		1142
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1143	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	1144	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1145	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	1146	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	1147	close $fh;
850		1148
851	if (@$objs) {	1149	if (@$objs) {
852	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) {
853	chmod SAVE_MODE, $fh;	1151	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	1152	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	1153	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	1154	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	1155	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	1156	aio_rename "$filename.pst~", "$filename.pst";
859	}	1157	}
860	} else {	1158	} else {
861	aio_unlink "$filename.pst";	1159	aio_unlink "$filename.pst";
…		…
867	}	1165	}
868	} else {	1166	} else {
869	aio_unlink $filename;	1167	aio_unlink $filename;
870	aio_unlink "$filename.pst";	1168	aio_unlink "$filename.pst";
871	}	1169	}
872	}	1170	};
873	}	1171	}
874		1172
875	sub object_freezer_as_string {	1173	sub object_freezer_as_string {
876	my ($rdata, $objs) = @_;	1174	my ($rdata, $objs) = @_;
877		1175
…		…
889	or return;	1187	or return;
890		1188
891	unless (aio_stat "$filename.pst") {	1189	unless (aio_stat "$filename.pst") {
892	(aio_load "$filename.pst", $av) >= 0	1190	(aio_load "$filename.pst", $av) >= 0
893	or return;	1191	or return;
		1192
894	$av = eval { (Storable::thaw $av)->{objs} };	1193	my $st = eval { Coro::Storable::thaw $av };
		1194	$av = $st->{objs};
895	}	1195	}
896		1196
		1197	utf8::decode (my $decname = $filename);
897	warn sprintf "loading %s (%d)\n",	1198	warn sprintf "loading %s (%d,%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1199	$decname, length $data, scalar @{$av || []};
		1200
899	return ($data, $av);	1201	($data, $av)
900	}	1202	}
		1203
		1204	=head2 COMMAND CALLBACKS
		1205
		1206	=over 4
		1207
		1208	=cut
901		1209
902	#############################################################################	1210	#############################################################################
903	# command handling &c	1211	# command handling &c
904		1212
905	=item cf::register_command $name => \&callback($ob,$args);	1213	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1226	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1227	}
920		1228
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1229	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1230
923	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.
924		1236
925	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
926	called.	1238	called.
927		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
928	=cut	1251	=cut
929		1252
930	sub register_extcmd {	1253	sub register_extcmd {
931	my ($name, $cb) = @_;	1254	my ($name, $cb) = @_;
932		1255
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1256	$EXTCMD{$name} = $cb;
		1257	}
		1258
		1259	sub register_exticmd {
		1260	my ($name, $cb) = @_;
		1261
		1262	$EXTICMD{$name} = $cb;
937	}	1263	}
938		1264
939	cf::player->attach (	1265	cf::player->attach (
940	on_command => sub {	1266	on_command => sub {
941	my ($pl, $name, $params) = @_;	1267	my ($pl, $name, $params) = @_;
…		…
950	cf::override;	1276	cf::override;
951	},	1277	},
952	on_extcmd => sub {	1278	on_extcmd => sub {
953	my ($pl, $buf) = @_;	1279	my ($pl, $buf) = @_;
954		1280
955	my $msg = eval { from_json $buf };	1281	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
956		1282
957	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
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1291	if (my $cb = $EXTCMD{$type}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1292	@reply = $cb->($pl, @payload);
960	$pl->ext_reply ($msg->{msgid}, %reply);
961	}
962	}	1293	}
		1294
		1295	$pl->ext_reply ($reply, @reply)
		1296	if $reply;
		1297
963	} else {	1298	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1299	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
965	}	1300	}
966		1301
967	cf::override;	1302	cf::override;
968	},	1303	},
969	);	1304	);
970		1305
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	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($) {
978	my ($path) = @_;	1744	my ($path) = @_;
979		1745
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1746	my ($match, $specificity);
981	my $base = $1;
982	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985		1747
986	warn "loading '$path' into '$pkg'\n";	1748	for my $region (list) {
987		1749	if ($region->{match} && $path =~ $region->{match}) {
988	open my $fh, "<:utf8", $path	1750	($match, $specificity) = ($region, $region->specificity)
989	or die "$path: $!";	1751	if $region->specificity > $specificity;
990		1752	}
991	my $source =
992	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })
995	. "\n};\n1";
996
997	eval $source
998	or die $@ ? "$path: $@\n"
999	: "extension disabled.\n";
1000
1001	push @exts, $pkg;
1002	$ext_pkg{$base} = $pkg;
1003
1004	# no strict 'refs';
1005	# @{"$pkg\::ISA"} = ext::;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	1753	}
1020		1754
1021	# remove commands	1755	$match
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}
1046
1047	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;
1050	eval {
1051	load_extension $ext;
1052	1
1053	} or warn "$ext not loaded: $@";
1054	}
1055	}
1056
1057	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094
1095	=head2 CORE EXTENSIONS
1096
1097	Functions and methods that extend core crossfire objects.
1098
1099	=head3 cf::player
1100
1101	=over 4
1102
1103	=item cf::player::exists $login
1104
1105	Returns true when the given account exists.
1106
1107	=cut
1108
1109	sub cf::player::exists($) {
1110	cf::player::find $_[0]
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1112	}
1113
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)
1115
1116	Sends an ext reply to the player.
1117
1118	=cut
1119
1120	sub cf::player::ext_reply($$$%) {
1121	my ($self, $id, %msg) = @_;
1122
1123	$msg{msgid} = $id;
1124
1125	$self->send ("ext " . to_json \%msg);
1126	}	1756	}
1127		1757
1128	=back	1758	=back
1129
1130		1759
1131	=head3 cf::map	1760	=head3 cf::map
1132		1761
1133	=over 4	1762	=over 4
1134		1763
…		…
1137	package cf::map;	1766	package cf::map;
1138		1767
1139	use Fcntl;	1768	use Fcntl;
1140	use Coro::AIO;	1769	use Coro::AIO;
1141		1770
		1771	use overload
		1772	'""' => \&as_string,
		1773	fallback => 1;
		1774
1142	our $MAX_RESET = 7200;	1775	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1776	our $DEFAULT_RESET = 3000;
1144		1777
1145	sub generate_random_map {	1778	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1779	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1780	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1781	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1782	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1783	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1784	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1785	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1786	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1787	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1788	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1789	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1790	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1791	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1792	(cf::region::find $rmp->{region}), $rmp->{custom}
		1793	)
		1794	}
		1795
		1796	=item cf::map->register ($regex, $prio)
		1797
		1798	Register a handler for the map path matching the given regex at the
		1799	givne priority (higher is better, built-in handlers have priority 0, the
		1800	default).
		1801
		1802	=cut
		1803
		1804	sub register {
		1805	my (undef, $regex, $prio) = @_;
		1806	my $pkg = caller;
		1807
		1808	no strict;
		1809	push @{"$pkg\::ISA"}, __PACKAGE__;
		1810
		1811	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1812	}
		1813
		1814	# also paths starting with '/'
		1815	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1816
		1817	sub thawer_merge {
		1818	my ($self, $merge) = @_;
		1819
		1820	# we have to keep some variables in memory intact
		1821	local $self->{path};
		1822	local $self->{load_path};
		1823
		1824	$self->SUPER::thawer_merge ($merge);
		1825	}
		1826
		1827	sub normalise {
		1828	my ($path, $base) = @_;
		1829
		1830	$path = "$path"; # make sure its a string
		1831
		1832	$path =~ s/\.map$//;
		1833
		1834	# map plan:
		1835	#
		1836	# /! non-realised random map exit (special hack!)
		1837	# {... are special paths that are not being touched
		1838	# ?xxx/... are special absolute paths
		1839	# ?random/... random maps
		1840	# /... normal maps
		1841	# ~user/... per-player map of a specific user
		1842
		1843	$path =~ s/$PATH_SEP/\//go;
		1844
		1845	# treat it as relative path if it starts with
		1846	# something that looks reasonable
		1847	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1848	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1849
		1850	$base =~ s{[^/]+/?$}{};
		1851	$path = "$base/$path";
		1852	}
		1853
		1854	for ($path) {
		1855	redo if s{//}{/};
		1856	redo if s{/\.?/}{/};
		1857	redo if s{/[^/]+/\.\./}{/};
		1858	}
		1859
		1860	$path
		1861	}
		1862
		1863	sub new_from_path {
		1864	my (undef, $path, $base) = @_;
		1865
		1866	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1867
		1868	$path = normalise $path, $base;
		1869
		1870	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1871	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1872	my $self = bless cf::map::new, $pkg;
		1873	$self->{path} = $path; $self->path ($path);
		1874	$self->init; # pass $1 etc.
		1875	return $self;
		1876	}
		1877	}
		1878
		1879	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1880	()
		1881	}
		1882
		1883	sub init {
		1884	my ($self) = @_;
		1885
		1886	$self
		1887	}
		1888
		1889	sub as_string {
		1890	my ($self) = @_;
		1891
		1892	"$self->{path}"
		1893	}
		1894
		1895	# the displayed name, this is a one way mapping
		1896	sub visible_name {
		1897	&as_string
		1898	}
		1899
		1900	# the original (read-only) location
		1901	sub load_path {
		1902	my ($self) = @_;
		1903
		1904	"$MAPDIR/$self->{path}.map"
		1905	}
		1906
		1907	# the temporary/swap location
		1908	sub save_path {
		1909	my ($self) = @_;
		1910
		1911	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1912	"$TMPDIR/$path.map"
		1913	}
		1914
		1915	# the unique path, undef == no special unique path
		1916	sub uniq_path {
		1917	my ($self) = @_;
		1918
		1919	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1920	"$UNIQUEDIR/$path"
1162	}	1921	}
1163		1922
1164	# and all this just because we cannot iterate over	1923	# and all this just because we cannot iterate over
1165	# all maps in C++...	1924	# all maps in C++...
1166	sub change_all_map_light {	1925	sub change_all_map_light {
…		…
1168		1927
1169	$_->change_map_light ($change)	1928	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1929	for grep $_->outdoor, values %cf::MAP;
1171	}	1930	}
1172		1931
		1932	sub decay_objects {
		1933	my ($self) = @_;
		1934
		1935	return if $self->{deny_reset};
		1936
		1937	$self->do_decay_objects;
		1938	}
		1939
		1940	sub unlink_save {
		1941	my ($self) = @_;
		1942
		1943	utf8::encode (my $save = $self->save_path);
		1944	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1945	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1946	}
		1947
1173	sub try_load_header($) {	1948	sub load_header_from($) {
1174	my ($path) = @_;	1949	my ($self, $path) = @_;
1175		1950
1176	utf8::encode $path;	1951	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1952	my $f = new_from_file cf::object::thawer $path
1178	or return;	1953	or return;
1179		1954
1180	my $map = cf::map::new	1955	$self->_load_header ($f)
1181	or return;	1956	or return;
1182		1957
1183	$map->load_header ($path)	1958	local $MAP_LOADING{$self->{path}} = $self;
		1959	$f->resolve_delayed_derefs;
		1960
		1961	$self->{load_path} = $path;
		1962
		1963	1
		1964	}
		1965
		1966	sub load_header_orig {
		1967	my ($self) = @_;
		1968
		1969	$self->load_header_from ($self->load_path)
		1970	}
		1971
		1972	sub load_header_temp {
		1973	my ($self) = @_;
		1974
		1975	$self->load_header_from ($self->save_path)
		1976	}
		1977
		1978	sub prepare_temp {
		1979	my ($self) = @_;
		1980
		1981	$self->last_access ((delete $self->{last_access})
		1982	|| $cf::RUNTIME); #d#
		1983	# safety
		1984	$self->{instantiate_time} = $cf::RUNTIME
		1985	if $self->{instantiate_time} > $cf::RUNTIME;
		1986	}
		1987
		1988	sub prepare_orig {
		1989	my ($self) = @_;
		1990
		1991	$self->{load_original} = 1;
		1992	$self->{instantiate_time} = $cf::RUNTIME;
		1993	$self->last_access ($cf::RUNTIME);
		1994	$self->instantiate;
		1995	}
		1996
		1997	sub load_header {
		1998	my ($self) = @_;
		1999
		2000	if ($self->load_header_temp) {
		2001	$self->prepare_temp;
		2002	} else {
		2003	$self->load_header_orig
1184	or return;	2004	or return;
		2005	$self->prepare_orig;
		2006	}
1185		2007
1186	$map->{load_path} = $path;	2008	$self->{deny_reset} = 1
		2009	if $self->no_reset;
1187		2010
1188	$map	2011	$self->default_region (cf::region::find_by_path $self->{path})
1189	}	2012	unless $self->default_region;
1190		2013
		2014	1
		2015	}
		2016
1191	sub find_map;	2017	sub find;
1192	sub find_map {	2018	sub find {
1193	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1194		2020
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	2021	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		2022
		2023	cf::lock_wait "map_data:$path";#d#remove
1200	cf::lock_wait "map_find:$key";	2024	cf::lock_wait "map_find:$path";
1201		2025
1202	$cf::MAP{$key} || do {	2026	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	2027	my $guard1 = cf::lock_acquire "map_find:$path";
		2028	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1204		2029
1205	# do it the slow way	2030	my $map = new_from_path cf::map $path
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	2031	or return;
1220		2032
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	2033	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		2034
1234	if ($map->should_reset) {	2035	$map->load_header
		2036	or return;
		2037
		2038	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2039	# doing this can freeze the server in a sync job, obviously
		2040	#$cf::WAIT_FOR_TICK->wait;
		2041	undef $guard1;
		2042	undef $guard2;
1235	$map->reset;	2043	$map->reset;
1236	undef $guard;	2044	return find $path;
1237	$map = find_map $path
1238	or return;
1239	}	2045	}
1240		2046
1241	$cf::MAP{$key} = $map	2047	$cf::MAP{$path} = $map
1242	}	2048	}
1243	}	2049	}
		2050
		2051	sub pre_load { }
		2052	sub post_load { }
1244		2053
1245	sub load {	2054	sub load {
1246	my ($self) = @_;	2055	my ($self) = @_;
1247		2056
		2057	local $self->{deny_reset} = 1; # loading can take a long time
		2058
1248	my $path = $self->{path};	2059	my $path = $self->{path};
		2060
		2061	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2062	my $guard = cf::lock_acquire "map_data:$path";
1250		2063
		2064	return unless $self->valid;
1251	return if $self->in_memory != cf::MAP_SWAPPED;	2065	return unless $self->in_memory == cf::MAP_SWAPPED;
1252		2066
1253	$self->in_memory (cf::MAP_LOADING);	2067	$self->in_memory (cf::MAP_LOADING);
1254		2068
1255	$self->alloc;	2069	$self->alloc;
1256	$self->load_objects ($self->{load_path}, 1)	2070
		2071	$self->pre_load;
		2072	cf::cede_to_tick;
		2073
		2074	my $f = new_from_file cf::object::thawer $self->{load_path};
		2075	$f->skip_block;
		2076	$self->_load_objects ($f)
1257	or return;	2077	or return;
1258		2078
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2079	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	2080	if delete $self->{load_original};
1261		2081
1262	if (my $uniq = $path->uniq_path) {	2082	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	2083	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	2084	unless (aio_stat $uniq) {
		2085	if (my $f = new_from_file cf::object::thawer $uniq) {
1265	$self->clear_unique_items;	2086	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	2087	$self->_load_objects ($f);
		2088	$f->resolve_delayed_derefs;
		2089	}
1267	}	2090	}
1268	}	2091	}
1269		2092
		2093	$f->resolve_delayed_derefs;
		2094
		2095	cf::cede_to_tick;
1270	# now do the right thing for maps	2096	# now do the right thing for maps
1271	$self->link_multipart_objects;	2097	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	2098	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	2099	unless $self->difficulty;
		2100	cf::cede_to_tick;
		2101
		2102	unless ($self->{deny_activate}) {
		2103	$self->decay_objects;
		2104	$self->fix_auto_apply;
		2105	$self->update_buttons;
		2106	cf::cede_to_tick;
		2107	$self->set_darkness_map;
		2108	cf::cede_to_tick;
1283	$self->activate;	2109	$self->activate;
1284	}	2110	}
1285		2111
		2112	$self->{last_save} = $cf::RUNTIME;
		2113	$self->last_access ($cf::RUNTIME);
		2114
1286	$self->in_memory (cf::MAP_IN_MEMORY);	2115	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	2116	}
1288		2117
1289	sub load_map_sync {	2118	$self->post_load;
		2119	}
		2120
		2121	sub customise_for {
		2122	my ($self, $ob) = @_;
		2123
		2124	return find "~" . $ob->name . "/" . $self->{path}
		2125	if $self->per_player;
		2126
		2127	# return find "?party/" . $ob->name . "/" . $self->{path}
		2128	# if $self->per_party;
		2129
		2130	$self
		2131	}
		2132
		2133	# find and load all maps in the 3x3 area around a map
		2134	sub load_neighbours {
		2135	my ($map) = @_;
		2136
		2137	my @neigh; # diagonal neighbours
		2138
		2139	for (0 .. 3) {
		2140	my $neigh = $map->tile_path ($_)
		2141	or next;
		2142	$neigh = find $neigh, $map
		2143	or next;
		2144	$neigh->load;
		2145
		2146	push @neigh,
		2147	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2148	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2149	}
		2150
		2151	for (grep defined $_->[0], @neigh) {
		2152	my ($path, $origin) = @$_;
		2153	my $neigh = find $path, $origin
		2154	or next;
		2155	$neigh->load;
		2156	}
		2157	}
		2158
		2159	sub find_sync {
1290	my ($path, $origin) = @_;	2160	my ($path, $origin) = @_;
1291		2161
1292	#warn "load_map_sync<$path, $origin>\n";#d#	2162	cf::sync_job { find $path, $origin }
		2163	}
1293		2164
1294	cf::sync_job {	2165	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	2166	my ($map) = @_;
1296	or return;	2167
1297	$map->load;	2168	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1298	$map	2169	if $Coro::current == $Coro::main;
		2170
		2171	cf::sync_job { $map->load };
		2172	}
		2173
		2174	our %MAP_PREFETCH;
		2175	our $MAP_PREFETCHER = undef;
		2176
		2177	sub find_async {
		2178	my ($path, $origin, $load) = @_;
		2179
		2180	$path = normalise $path, $origin && $origin->{path};
		2181
		2182	if (my $map = $cf::MAP{$path}) {
		2183	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2184	}
		2185
		2186	$MAP_PREFETCH{$path} |= $load;
		2187
		2188	$MAP_PREFETCHER ||= cf::async {
		2189	$Coro::current->{desc} = "map prefetcher";
		2190
		2191	while (%MAP_PREFETCH) {
		2192	while (my ($k, $v) = each %MAP_PREFETCH) {
		2193	if (my $map = find $k) {
		2194	$map->load if $v;
		2195	}
		2196
		2197	delete $MAP_PREFETCH{$k};
		2198	}
		2199	}
		2200	undef $MAP_PREFETCHER;
1299	}	2201	};
		2202	$MAP_PREFETCHER->prio (6);
		2203
		2204	()
1300	}	2205	}
1301		2206
1302	sub save {	2207	sub save {
1303	my ($self) = @_;	2208	my ($self) = @_;
1304		2209
		2210	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2211
1305	$self->{last_save} = $cf::RUNTIME;	2212	$self->{last_save} = $cf::RUNTIME;
1306		2213
1307	return unless $self->dirty;	2214	return unless $self->dirty;
1308		2215
1309	my $save = $self->{path}->save_path; utf8::encode $save;	2216	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2217	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		2218
1312	$self->{load_path} = $save;	2219	$self->{load_path} = $save;
1313		2220
1314	return if $self->{deny_save};	2221	return if $self->{deny_save};
1315		2222
		2223	local $self->{last_access} = $self->last_access;#d#
		2224
		2225	cf::async {
		2226	$Coro::current->{desc} = "map player save";
		2227	$_->contr->save for $self->players;
		2228	};
		2229
1316	if ($uniq) {	2230	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2231	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2232	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2233	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2234	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2235	}
1322	}	2236	}
1323		2237
1324	sub swap_out {	2238	sub swap_out {
1325	my ($self) = @_;	2239	my ($self) = @_;
		2240
		2241	# save first because save cedes
		2242	$self->save;
		2243
		2244	my $lock = cf::lock_acquire "map_data:$self->{path}";
1326		2245
1327	return if $self->players;	2246	return if $self->players;
1328	return if $self->in_memory != cf::MAP_IN_MEMORY;	2247	return if $self->in_memory != cf::MAP_IN_MEMORY;
1329	return if $self->{deny_save};	2248	return if $self->{deny_save};
1330		2249
		2250	$self->in_memory (cf::MAP_SWAPPED);
		2251
1331	$self->save;	2252	$self->deactivate;
		2253	$_->clear_links_to ($self) for values %cf::MAP;
1332	$self->clear;	2254	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2255	}
1335		2256
1336	sub reset_at {	2257	sub reset_at {
1337	my ($self) = @_;	2258	my ($self) = @_;
1338		2259
1339	# TODO: safety, remove and allow resettable per-player maps	2260	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2261	return 1e99 if $self->{deny_reset};
1342		2262
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2263	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2264	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2265
…		…
1350	my ($self) = @_;	2270	my ($self) = @_;
1351		2271
1352	$self->reset_at <= $cf::RUNTIME	2272	$self->reset_at <= $cf::RUNTIME
1353	}	2273	}
1354		2274
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2275	sub reset {
1377	my ($self) = @_;	2276	my ($self) = @_;
1378		2277
		2278	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2279
1379	return if $self->players;	2280	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		2281
1382	warn "resetting map ", $self->path;#d#	2282	warn "resetting map ", $self->path;
		2283
		2284	$self->in_memory (cf::MAP_SWAPPED);
		2285
		2286	# need to save uniques path
		2287	unless ($self->{deny_save}) {
		2288	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2289
		2290	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2291	if $uniq;
		2292	}
1383		2293
1384	delete $cf::MAP{$self->path};	2294	delete $cf::MAP{$self->path};
1385		2295
		2296	$self->deactivate;
1386	$_->clear_links_to ($self) for values %cf::MAP;	2297	$_->clear_links_to ($self) for values %cf::MAP;
		2298	$self->clear;
1387		2299
1388	$self->unlink_save;	2300	$self->unlink_save;
1389	$self->destroy;	2301	$self->destroy;
1390	}	2302	}
1391		2303
1392	my $nuke_counter = "aaaa";	2304	my $nuke_counter = "aaaa";
1393		2305
1394	sub nuke {	2306	sub nuke {
1395	my ($self) = @_;	2307	my ($self) = @_;
1396		2308
		2309	{
		2310	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2311
		2312	delete $cf::MAP{$self->path};
		2313
		2314	$self->unlink_save;
		2315
		2316	bless $self, "cf::map";
		2317	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	2318	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2319	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2320	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2321
		2322	$cf::MAP{$self->path} = $self;
		2323	}
		2324
1400	$self->reset; # polite request, might not happen	2325	$self->reset; # polite request, might not happen
1401	}	2326	}
1402		2327
1403	sub customise_for {	2328	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2329
1406	if ($map->per_player) {	2330	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2331	maps. May block.
		2332
		2333	=cut
		2334
		2335	sub tmp_maps() {
1408	}	2336	[
1409		2337	map {
1410	$map	2338	utf8::decode $_;
		2339	/\.map$/
		2340	? normalise $_
		2341	: ()
		2342	} @{ aio_readdir $TMPDIR or [] }
		2343	]
1411	}	2344	}
1412		2345
1413	sub emergency_save {	2346	=item $maps = cf::map::random_maps
1414	local $cf::FREEZE = 1;
1415		2347
1416	warn "enter emergency map save\n";	2348	Returns an arrayref with all map paths of currently instantiated and saved
		2349	random maps. May block.
1417		2350
1418	cf::sync_job {	2351	=cut
1419	warn "begin emergency map save\n";	2352
1420	$_->save for values %cf::MAP;	2353	sub random_maps() {
		2354	[
		2355	map {
		2356	utf8::decode $_;
		2357	/\.map$/
		2358	? normalise "?random/$_"
		2359	: ()
		2360	} @{ aio_readdir $RANDOMDIR or [] }
		2361	]
		2362	}
		2363
		2364	=item cf::map::unique_maps
		2365
		2366	Returns an arrayref of paths of all shared maps that have
		2367	instantiated unique items. May block.
		2368
		2369	=cut
		2370
		2371	sub unique_maps() {
		2372	[
		2373	map {
		2374	utf8::decode $_;
		2375	/\.map$/
		2376	? normalise $_
		2377	: ()
		2378	} @{ aio_readdir $UNIQUEDIR or [] }
		2379	]
		2380	}
		2381
		2382	=back
		2383
		2384	=head3 cf::object
		2385
		2386	=cut
		2387
		2388	package cf::object;
		2389
		2390	=over 4
		2391
		2392	=item $ob->inv_recursive
		2393
		2394	Returns the inventory of the object _and_ their inventories, recursively.
		2395
		2396	=cut
		2397
		2398	sub inv_recursive_;
		2399	sub inv_recursive_ {
		2400	map { $_, inv_recursive_ $_->inv } @_
		2401	}
		2402
		2403	sub inv_recursive {
		2404	inv_recursive_ inv $_[0]
		2405	}
		2406
		2407	=item $ref = $ob->ref
		2408
		2409	creates and returns a persistent reference to an objetc that can be stored as a string.
		2410
		2411	=item $ob = cf::object::deref ($refstring)
		2412
		2413	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2414	even if the object actually exists. May block.
		2415
		2416	=cut
		2417
		2418	sub deref {
		2419	my ($ref) = @_;
		2420
		2421	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2422	my ($uuid, $name) = ($1, $2);
		2423	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2424	or return;
		2425	$pl->ob->uuid eq $uuid
		2426	or return;
		2427
		2428	$pl->ob
		2429	} else {
		2430	warn "$ref: cannot resolve object reference\n";
		2431	undef
1421	};	2432	}
1422
1423	warn "end emergency map save\n";
1424	}	2433	}
1425		2434
1426	package cf;	2435	package cf;
1427		2436
1428	=back	2437	=back
1429
1430		2438
1431	=head3 cf::object::player	2439	=head3 cf::object::player
1432		2440
1433	=over 4	2441	=over 4
1434		2442
…		…
1448		2456
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2457	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2458
1451	if ($self->{record_replies}) {	2459	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2460	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2461
1453	} else {	2462	} else {
		2463	my $pl = $self->contr;
		2464
		2465	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2466	my $dialog = $pl->{npc_dialog};
		2467	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2468
		2469	} else {
1454	$msg = $npc->name . " says: $msg" if $npc;	2470	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2471	$self->message ($msg, $flags);
		2472	}
1456	}	2473	}
		2474	}
		2475
		2476	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2477
		2478	=cut
		2479
		2480	sub cf::object::send_msg {
		2481	my $pl = shift->contr
		2482	or return;
		2483	$pl->send_msg (@_);
1457	}	2484	}
1458		2485
1459	=item $player_object->may ("access")	2486	=item $player_object->may ("access")
1460		2487
1461	Returns wether the given player is authorized to access resource "access"	2488	Returns wether the given player is authorized to access resource "access"
…		…
1474		2501
1475	=item $player_object->enter_link	2502	=item $player_object->enter_link
1476		2503
1477	Freezes the player and moves him/her to a special map (C<{link}>).	2504	Freezes the player and moves him/her to a special map (C<{link}>).
1478		2505
1479	The player should be reaosnably safe there for short amounts of time. You	2506	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	2507	I<MUST> call C<leave_link> as soon as possible, though.
1481		2508
		2509	Will never block.
		2510
1482	=item $player_object->leave_link ($map, $x, $y)	2511	=item $player_object->leave_link ($map, $x, $y)
1483		2512
1484	Moves the player out of the specila link map onto the given map. If the	2513	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2514	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2515	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2516	fails, to the emergency map position.
1488		2517
1489	Might block.	2518	Might block.
1490		2519
1491	=cut	2520	=cut
		2521
		2522	sub link_map {
		2523	unless ($LINK_MAP) {
		2524	$LINK_MAP = cf::map::find "{link}"
		2525	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2526	$LINK_MAP->load;
		2527	}
		2528
		2529	$LINK_MAP
		2530	}
1492		2531
1493	sub cf::object::player::enter_link {	2532	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2533	my ($self) = @_;
1495		2534
1496	$self->deactivate_recursive;	2535	$self->deactivate_recursive;
1497		2536
1498	return if $self->map == $LINK_MAP;	2537	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2538
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2539	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2540	if $self->map && $self->map->{path} ne "{link}";
1502		2541
1503	$self->enter_map ($LINK_MAP, 20, 20);	2542	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2543	}
1505		2544
1506	sub cf::object::player::leave_link {	2545	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2546	my ($self, $map, $x, $y) = @_;
		2547
		2548	return unless $self->contr->active;
1508		2549
1509	my $link_pos = delete $self->{_link_pos};	2550	my $link_pos = delete $self->{_link_pos};
1510		2551
1511	unless ($map) {	2552	unless ($map) {
1512	# restore original map position	2553	# restore original map position
1513	($map, $x, $y) = @{ $link_pos || [] };	2554	($map, $x, $y) = @{ $link_pos || [] };
1514	$map = cf::map::find_map $map;	2555	$map = cf::map::find $map;
1515		2556
1516	unless ($map) {	2557	unless ($map) {
1517	($map, $x, $y) = @$EMERGENCY_POSITION;	2558	($map, $x, $y) = @$EMERGENCY_POSITION;
1518	$map = cf::map::find_map $map	2559	$map = cf::map::find $map
1519	or die "FATAL: cannot load emergency map\n";	2560	or die "FATAL: cannot load emergency map\n";
1520	}	2561	}
1521	}	2562	}
1522		2563
1523	($x, $y) = (-1, -1)	2564	($x, $y) = (-1, -1)
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2567	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2568	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2569	if $x <=0 && $y <= 0;
1529		2570
1530	$map->load;	2571	$map->load;
		2572	$map->load_neighbours;
1531		2573
		2574	return unless $self->contr->active;
1532	$self->activate_recursive;	2575	$self->activate_recursive;
		2576
		2577	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	2578	$self->enter_map ($map, $x, $y);
1534	}	2579	}
1535		2580
1536	cf::player->attach (	2581	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1537	on_logout => sub {
1538	my ($pl) = @_;
1539		2582
1540	# abort map switching before logout	2583	Moves the player to the given map-path and coordinates by first freezing
1541	if ($pl->ob->{_link_pos}) {	2584	her, loading and preparing them map, calling the provided $check callback
1542	cf::sync_job {	2585	that has to return the map if sucecssful, and then unfreezes the player on
1543	$pl->ob->leave_link	2586	the new (success) or old (failed) map position. In either case, $done will
1544	};	2587	be called at the end of this process.
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549		2588
1550	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563
1564	=item $player_object->goto_map ($path, $x, $y)
1565
1566	=cut	2589	=cut
1567		2590
		2591	our $GOTOGEN;
		2592
1568	sub cf::object::player::goto_map {	2593	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	2594	my ($self, $path, $x, $y, $check, $done) = @_;
		2595
		2596	# do generation counting so two concurrent goto's will be executed in-order
		2597	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		2598
1571	$self->enter_link;	2599	$self->enter_link;
1572		2600
1573	(cf::async {	2601	(async {
1574	$path = new cf::path $path;	2602	$Coro::current->{desc} = "player::goto $path $x $y";
1575		2603
1576	my $map = cf::map::find_map $path->as_string;	2604	# *tag paths override both path and x|y
		2605	if ($path =~ /^\*(.*)$/) {
		2606	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2607	my $ob = $obs[rand @obs];
		2608
		2609	# see if we actually can go there
		2610	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2611	$ob = $obs[rand @obs];
		2612	} else {
		2613	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2614	}
		2615	# else put us there anyways for now #d#
		2616
		2617	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2618	} else {
		2619	($path, $x, $y) = (undef, undef, undef);
		2620	}
		2621	}
		2622
		2623	my $map = eval {
		2624	my $map = defined $path ? cf::map::find $path : undef;
		2625
		2626	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2627	$map = $map->customise_for ($self);
1578		2628	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2629	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2630	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	}
1583		2632
		2633	$map
		2634	};
		2635
		2636	if ($@) {
		2637	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2638	LOG llevError | logBacktrace, Carp::longmess $@;
		2639	}
		2640
		2641	if ($gen == $self->{_goto_generation}) {
		2642	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2643	$self->leave_link ($map, $x, $y);
		2644	}
		2645
		2646	$done->() if $done;
1585	})->prio (1);	2647	})->prio (1);
1586	}	2648	}
1587		2649
1588	=item $player_object->enter_exit ($exit_object)	2650	=item $player_object->enter_exit ($exit_object)
1589		2651
…		…
1591		2653
1592	sub parse_random_map_params {	2654	sub parse_random_map_params {
1593	my ($spec) = @_;	2655	my ($spec) = @_;
1594		2656
1595	my $rmp = { # defaults	2657	my $rmp = { # defaults
1596	xsize => 10,	2658	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2659	ysize => (cf::rndm 15, 40),
		2660	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2661	#layout => string,
1598	};	2662	};
1599		2663
1600	for (split /\n/, $spec) {	2664	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2665	my ($k, $v) = split /\s+/, $_, 2;
1602		2666
…		…
1606	$rmp	2670	$rmp
1607	}	2671	}
1608		2672
1609	sub prepare_random_map {	2673	sub prepare_random_map {
1610	my ($exit) = @_;	2674	my ($exit) = @_;
		2675
		2676	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		2677
1612	# all this does is basically replace the /! path by	2678	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	2679	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	2680	# that depends on the exit object
1615		2681
1616	my $rmp = parse_random_map_params $exit->msg;	2682	my $rmp = parse_random_map_params $exit->msg;
1617		2683
1618	if ($exit->map) {	2684	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2685	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2686	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2687	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2688	$rmp->{origin_y} = $exit->y;
1623	}	2689	}
1624		2690
1625	$rmp->{random_seed} ||= $exit->random_seed;	2691	$rmp->{random_seed} ||= $exit->random_seed;
1626		2692
1627	my $data = cf::to_json $rmp;	2693	my $data = cf::encode_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2694	my $md5 = Digest::MD5::md5_hex $data;
		2695	my $meta = "$RANDOMDIR/$md5.meta";
1629		2696
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2697	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2698	aio_write $fh, 0, (length $data), $data, 0;
		2699	undef $fh;
		2700	aio_rename "$meta~", $meta;
1632		2701
1633	$exit->slaying ("?random/$md5");	2702	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2703	$exit->msg (undef);
1635	}	2704	}
1636	}	2705	}
…		…
1638	sub cf::object::player::enter_exit {	2707	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2708	my ($self, $exit) = @_;
1640		2709
1641	return unless $self->type == cf::PLAYER;	2710	return unless $self->type == cf::PLAYER;
1642		2711
		2712	if ($exit->slaying eq "/!") {
		2713	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2714	# the problem is that $exit might not survive long enough
		2715	# so it needs to be done right now, right here
		2716	cf::sync_job { prepare_random_map $exit };
		2717	}
		2718
		2719	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2720	my $hp = $exit->stats->hp;
		2721	my $sp = $exit->stats->sp;
		2722
1643	$self->enter_link;	2723	$self->enter_link;
1644		2724
		2725	# if exit is damned, update players death & WoR home-position
		2726	$self->contr->savebed ($slaying, $hp, $sp)
		2727	if $exit->flag (FLAG_DAMNED);
		2728
1645	(cf::async {	2729	(async {
		2730	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2731
		2732	$self->deactivate_recursive; # just to be sure
1646	unless (eval {	2733	unless (eval {
1647	prepare_random_map $exit	2734	$self->goto ($slaying, $hp, $sp);
1648	if $exit->slaying eq "/!";
1649
1650	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1651	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1652		2735
1653	1;	2736	1;
1654	}) {	2737	}) {
1655	$self->message ("Something went wrong deep within the crossfire server. "	2738	$self->message ("Something went wrong deep within the crossfire server. "
1656	. "I'll try to bring you back to the map you were before. "	2739	. "I'll try to bring you back to the map you were before. "
1657	. "Please report this to the dungeon master",	2740	. "Please report this to the dungeon master!",
1658	cf::NDI_UNIQUE | cf::NDI_RED);	2741	cf::NDI_UNIQUE | cf::NDI_RED);
1659		2742
1660	warn "ERROR in enter_exit: $@";	2743	warn "ERROR in enter_exit: $@";
1661	$self->leave_link;	2744	$self->leave_link;
1662	}	2745	}
1663	})->prio (1);	2746	})->prio (1);
…		…
1676		2759
1677	sub cf::client::send_drawinfo {	2760	sub cf::client::send_drawinfo {
1678	my ($self, $text, $flags) = @_;	2761	my ($self, $text, $flags) = @_;
1679		2762
1680	utf8::encode $text;	2763	utf8::encode $text;
1681	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2764	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1682	}	2765	}
1683		2766
		2767	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2768
		2769	Send a drawinfo or msg packet to the client, formatting the msg for the
		2770	client if neccessary. C<$type> should be a string identifying the type of
		2771	the message, with C<log> being the default. If C<$color> is negative, suppress
		2772	the message unless the client supports the msg packet.
		2773
		2774	=cut
		2775
		2776	# non-persistent channels (usually the info channel)
		2777	our %CHANNEL = (
		2778	"c/identify" => {
		2779	id => "infobox",
		2780	title => "Identify",
		2781	reply => undef,
		2782	tooltip => "Items recently identified",
		2783	},
		2784	"c/examine" => {
		2785	id => "infobox",
		2786	title => "Examine",
		2787	reply => undef,
		2788	tooltip => "Signs and other items you examined",
		2789	},
		2790	"c/book" => {
		2791	id => "infobox",
		2792	title => "Book",
		2793	reply => undef,
		2794	tooltip => "The contents of a note or book",
		2795	},
		2796	"c/lookat" => {
		2797	id => "infobox",
		2798	title => "Look",
		2799	reply => undef,
		2800	tooltip => "What you saw there",
		2801	},
		2802	"c/who" => {
		2803	id => "infobox",
		2804	title => "Players",
		2805	reply => undef,
		2806	tooltip => "Shows players who are currently online",
		2807	},
		2808	"c/body" => {
		2809	id => "infobox",
		2810	title => "Body Parts",
		2811	reply => undef,
		2812	tooltip => "Shows which body parts you posess and are available",
		2813	},
		2814	"c/uptime" => {
		2815	id => "infobox",
		2816	title => "Uptime",
		2817	reply => undef,
		2818	tooltip => "How long the server has been running since last restart",
		2819	},
		2820	"c/mapinfo" => {
		2821	id => "infobox",
		2822	title => "Map Info",
		2823	reply => undef,
		2824	tooltip => "Information related to the maps",
		2825	},
		2826	);
		2827
		2828	sub cf::client::send_msg {
		2829	my ($self, $channel, $msg, $color, @extra) = @_;
		2830
		2831	$msg = $self->pl->expand_cfpod ($msg);
		2832
		2833	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2834
		2835	# check predefined channels, for the benefit of C
		2836	if ($CHANNEL{$channel}) {
		2837	$channel = $CHANNEL{$channel};
		2838
		2839	$self->ext_msg (channel_info => $channel)
		2840	if $self->can_msg;
		2841
		2842	$channel = $channel->{id};
		2843
		2844	} elsif (ref $channel) {
		2845	# send meta info to client, if not yet sent
		2846	unless (exists $self->{channel}{$channel->{id}}) {
		2847	$self->{channel}{$channel->{id}} = $channel;
		2848	$self->ext_msg (channel_info => $channel)
		2849	if $self->can_msg;
		2850	}
		2851
		2852	$channel = $channel->{id};
		2853	}
		2854
		2855	return unless @extra || length $msg;
		2856
		2857	if ($self->can_msg) {
		2858	# default colour, mask it out
		2859	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2860	if $color & cf::NDI_DEF;
		2861
		2862	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2863	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2864	} else {
		2865	if ($color >= 0) {
		2866	# replace some tags by gcfclient-compatible ones
		2867	for ($msg) {
		2868	1 while
		2869	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2870	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2871	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2872	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2873	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2874	}
		2875
		2876	$color &= cf::NDI_COLOR_MASK;
		2877
		2878	utf8::encode $msg;
		2879
		2880	if (0 && $msg =~ /\[/) {
		2881	# COMMAND/INFO
		2882	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2883	} else {
		2884	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2885	$self->send_packet ("drawinfo $color $msg")
		2886	}
		2887	}
		2888	}
		2889	}
		2890
		2891	=item $client->ext_msg ($type, @msg)
		2892
		2893	Sends an ext event to the client.
		2894
		2895	=cut
		2896
		2897	sub cf::client::ext_msg($$@) {
		2898	my ($self, $type, @msg) = @_;
		2899
		2900	if ($self->extcmd == 2) {
		2901	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2902	} elsif ($self->extcmd == 1) { # TODO: remove
		2903	push @msg, msgtype => "event_$type";
		2904	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2905	}
		2906	}
		2907
		2908	=item $client->ext_reply ($msgid, @msg)
		2909
		2910	Sends an ext reply to the client.
		2911
		2912	=cut
		2913
		2914	sub cf::client::ext_reply($$@) {
		2915	my ($self, $id, @msg) = @_;
		2916
		2917	if ($self->extcmd == 2) {
		2918	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2919	} elsif ($self->extcmd == 1) {
		2920	#TODO: version 1, remove
		2921	unshift @msg, msgtype => "reply", msgid => $id;
		2922	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2923	}
		2924	}
1684		2925
1685	=item $success = $client->query ($flags, "text", \&cb)	2926	=item $success = $client->query ($flags, "text", \&cb)
1686		2927
1687	Queues a query to the client, calling the given callback with	2928	Queues a query to the client, calling the given callback with
1688	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2929	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1689	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2930	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1690		2931
1691	Queries can fail, so check the return code. Or don't, as queries will become	2932	Queries can fail, so check the return code. Or don't, as queries will
1692	reliable at some point in the future.	2933	become reliable at some point in the future.
1693		2934
1694	=cut	2935	=cut
1695		2936
1696	sub cf::client::query {	2937	sub cf::client::query {
1697	my ($self, $flags, $text, $cb) = @_;	2938	my ($self, $flags, $text, $cb) = @_;
…		…
1705	utf8::encode $text;	2946	utf8::encode $text;
1706	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2947	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1707		2948
1708	$self->send_packet ($self->{query_queue}[0][0])	2949	$self->send_packet ($self->{query_queue}[0][0])
1709	if @{ $self->{query_queue} } == 1;	2950	if @{ $self->{query_queue} } == 1;
		2951
		2952	1
1710	}	2953	}
1711		2954
1712	cf::client->attach (	2955	cf::client->attach (
		2956	on_connect => sub {
		2957	my ($ns) = @_;
		2958
		2959	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2960	},
1713	on_reply => sub {	2961	on_reply => sub {
1714	my ($ns, $msg) = @_;	2962	my ($ns, $msg) = @_;
1715		2963
1716	# this weird shuffling is so that direct followup queries	2964	# this weird shuffling is so that direct followup queries
1717	# get handled first	2965	# get handled first
1718	my $queue = delete $ns->{query_queue}	2966	my $queue = delete $ns->{query_queue}
1719	or return; # be conservative, not sure how that cna happen, but we saw a crash here	2967	or return; # be conservative, not sure how that can happen, but we saw a crash here
1720		2968
1721	(shift @$queue)->[1]->($msg);	2969	(shift @$queue)->[1]->($msg);
		2970	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1722		2971
1723	push @{ $ns->{query_queue} }, @$queue;	2972	push @{ $ns->{query_queue} }, @$queue;
1724		2973
1725	if (@{ $ns->{query_queue} } == @$queue) {	2974	if (@{ $ns->{query_queue} } == @$queue) {
1726	if (@$queue) {	2975	if (@$queue) {
…		…
1728	} else {	2977	} else {
1729	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2978	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1730	}	2979	}
1731	}	2980	}
1732	},	2981	},
		2982	on_exticmd => sub {
		2983	my ($ns, $buf) = @_;
		2984
		2985	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2986
		2987	if (ref $msg) {
		2988	my ($type, $reply, @payload) =
		2989	"ARRAY" eq ref $msg
		2990	? @$msg
		2991	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2992
		2993	my @reply;
		2994
		2995	if (my $cb = $EXTICMD{$type}) {
		2996	@reply = $cb->($ns, @payload);
		2997	}
		2998
		2999	$ns->ext_reply ($reply, @reply)
		3000	if $reply;
		3001
		3002	} else {
		3003	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3004	}
		3005
		3006	cf::override;
		3007	},
1733	);	3008	);
1734		3009
1735	=item $client->coro (\&cb)	3010	=item $client->async (\&cb)
1736		3011
1737	Create a new coroutine, running the specified callback. The coroutine will	3012	Create a new coroutine, running the specified callback. The coroutine will
1738	be automatically cancelled when the client gets destroyed (e.g. on logout,	3013	be automatically cancelled when the client gets destroyed (e.g. on logout,
1739	or loss of connection).	3014	or loss of connection).
1740		3015
1741	=cut	3016	=cut
1742		3017
1743	sub cf::client::coro {	3018	sub cf::client::async {
1744	my ($self, $cb) = @_;	3019	my ($self, $cb) = @_;
1745		3020
1746	my $coro = &cf::async ($cb);	3021	my $coro = &Coro::async ($cb);
1747		3022
1748	$coro->on_destroy (sub {	3023	$coro->on_destroy (sub {
1749	delete $self->{_coro}{$coro+0};	3024	delete $self->{_coro}{$coro+0};
1750	});	3025	});
1751		3026
…		…
1778	our $safe = new Safe "safe";	3053	our $safe = new Safe "safe";
1779	our $safe_hole = new Safe::Hole;	3054	our $safe_hole = new Safe::Hole;
1780		3055
1781	$SIG{FPE} = 'IGNORE';	3056	$SIG{FPE} = 'IGNORE';
1782		3057
1783	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3058	$safe->permit_only (Opcode::opset qw(
		3059	:base_core :base_mem :base_orig :base_math
		3060	grepstart grepwhile mapstart mapwhile
		3061	sort time
		3062	));
1784		3063
1785	# here we export the classes and methods available to script code	3064	# here we export the classes and methods available to script code
1786		3065
1787	=pod	3066	=pod
1788		3067
1789	The following fucntions and emthods are available within a safe environment:	3068	The following functions and methods are available within a safe environment:
1790		3069
1791	cf::object contr pay_amount pay_player map	3070	cf::object
		3071	contr pay_amount pay_player map x y force_find force_add destroy
		3072	insert remove name archname title slaying race decrease_ob_nr
		3073
1792	cf::object::player player	3074	cf::object::player
1793	cf::player peaceful	3075	player
1794	cf::map trigger	3076
		3077	cf::player
		3078	peaceful
		3079
		3080	cf::map
		3081	trigger
1795		3082
1796	=cut	3083	=cut
1797		3084
1798	for (	3085	for (
1799	["cf::object" => qw(contr pay_amount pay_player map)],	3086	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3087	insert remove inv name archname title slaying race
		3088	decrease_ob_nr destroy)],
1800	["cf::object::player" => qw(player)],	3089	["cf::object::player" => qw(player)],
1801	["cf::player" => qw(peaceful)],	3090	["cf::player" => qw(peaceful)],
1802	["cf::map" => qw(trigger)],	3091	["cf::map" => qw(trigger)],
1803	) {	3092	) {
1804	no strict 'refs';	3093	no strict 'refs';
…		…
1875	=back	3164	=back
1876		3165
1877	=cut	3166	=cut
1878		3167
1879	#############################################################################	3168	#############################################################################
		3169	# the server's init and main functions
1880		3170
1881	=head2 EXTENSION DATABASE SUPPORT	3171	sub load_facedata($) {
		3172	my ($path) = @_;
1882		3173
1883	Crossfire maintains a very simple database for extension use. It can	3174	# HACK to clear player env face cache, we need some signal framework
1884	currently store anything that can be serialised using Storable, which	3175	# for this (global event?)
1885	excludes objects.	3176	%ext::player_env::MUSIC_FACE_CACHE = ();
1886		3177
1887	The parameter C<$family> should best start with the name of the extension	3178	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1888	using it, it should be unique.
1889		3179
1890	=over 4	3180	warn "loading facedata from $path\n";
1891		3181
1892	=item $hashref = cf::db_get $family	3182	my $facedata;
		3183	0 < aio_load $path, $facedata
		3184	or die "$path: $!";
1893		3185
1894	Return a hashref for use by the extension C<$family>, which can be	3186	$facedata = Coro::Storable::thaw $facedata;
1895	modified. After modifications, you have to call C<cf::db_dirty> or
1896	C<cf::db_sync>.
1897		3187
1898	=item $value = cf::db_get $family => $key	3188	$facedata->{version} == 2
		3189	or cf::cleanup "$path: version mismatch, cannot proceed.";
1899		3190
1900	Returns a single value from the database	3191	# patch in the exptable
1901		3192	$facedata->{resource}{"res/exp_table"} = {
1902	=item cf::db_put $family => $hashref	3193	type => FT_RSRC,
1903		3194	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1904	Stores the given family hashref into the database. Updates are delayed, if
1905	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1906
1907	=item cf::db_put $family => $key => $value
1908
1909	Stores the given C<$value> in the family hash. Updates are delayed, if you
1910	want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_dirty
1913
1914	Marks the database as dirty, to be updated at a later time.
1915
1916	=item cf::db_sync
1917
1918	Immediately write the database to disk I<if it is dirty>.
1919
1920	=cut
1921
1922	our $DB;
1923
1924	{
1925	my $path = cf::localdir . "/database.pst";
1926
1927	sub db_load() {
1928	$DB = stat $path ? Storable::retrieve $path : { };
1929	}
1930
1931	my $pid;
1932
1933	sub db_save() {
1934	waitpid $pid, 0 if $pid;
1935	if (0 == ($pid = fork)) {
1936	$DB->{_meta}{version} = 1;
1937	Storable::nstore $DB, "$path~";
1938	rename "$path~", $path;
1939	cf::_exit 0 if defined $pid;
1940	}
1941	}
1942
1943	my $dirty;
1944
1945	sub db_sync() {
1946	db_save if $dirty;
1947	undef $dirty;
1948	}
1949
1950	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1951	db_sync;
1952	});	3195	};
		3196	cf::cede_to_tick;
1953		3197
1954	sub db_dirty() {
1955	$dirty = 1;
1956	$idle->start;
1957	}	3198	{
		3199	my $faces = $facedata->{faceinfo};
1958		3200
1959	sub db_get($;$) {	3201	while (my ($face, $info) = each %$faces) {
1960	@_ >= 2	3202	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1961	? $DB->{$_[0]}{$_[1]}
1962	: ($DB->{$_[0]} ||= { })
1963	}
1964		3203
1965	sub db_put($$;$) {	3204	cf::face::set_visibility $idx, $info->{visibility};
1966	if (@_ >= 3) {	3205	cf::face::set_magicmap $idx, $info->{magicmap};
1967	$DB->{$_[0]}{$_[1]} = $_[2];	3206	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1968	} else {	3207	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1969	$DB->{$_[0]} = $_[1];
1970	}
1971	db_dirty;
1972	}
1973		3208
1974	cf::global->attach (	3209	cf::cede_to_tick;
1975	prio => 10000,
1976	on_cleanup => sub {
1977	db_sync;
1978	},	3210	}
1979	);
1980	}
1981		3211
1982	#############################################################################	3212	while (my ($face, $info) = each %$faces) {
1983	# the server's main()	3213	next unless $info->{smooth};
1984		3214
1985	sub cfg_load {	3215	my $idx = cf::face::find $face
		3216	or next;
		3217
		3218	if (my $smooth = cf::face::find $info->{smooth}) {
		3219	cf::face::set_smooth $idx, $smooth;
		3220	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3221	} else {
		3222	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3223	}
		3224
		3225	cf::cede_to_tick;
		3226	}
		3227	}
		3228
		3229	{
		3230	my $anims = $facedata->{animinfo};
		3231
		3232	while (my ($anim, $info) = each %$anims) {
		3233	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3234	cf::cede_to_tick;
		3235	}
		3236
		3237	cf::anim::invalidate_all; # d'oh
		3238	}
		3239
		3240	{
		3241	# TODO: for gcfclient pleasure, we should give resources
		3242	# that gcfclient doesn't grok a >10000 face index.
		3243	my $res = $facedata->{resource};
		3244
		3245	while (my ($name, $info) = each %$res) {
		3246	if (defined $info->{type}) {
		3247	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3248	my $data;
		3249
		3250	if ($info->{type} & 1) {
		3251	# prepend meta info
		3252
		3253	my $meta = $enc->encode ({
		3254	name => $name,
		3255	%{ $info->{meta} || {} },
		3256	});
		3257
		3258	$data = pack "(w/a*)*", $meta, $info->{data};
		3259	} else {
		3260	$data = $info->{data};
		3261	}
		3262
		3263	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3264	cf::face::set_type $idx, $info->{type};
		3265	} else {
		3266	$RESOURCE{$name} = $info;
		3267	}
		3268
		3269	cf::cede_to_tick;
		3270	}
		3271	}
		3272
		3273	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3274
		3275	1
		3276	}
		3277
		3278	cf::global->attach (on_resource_update => sub {
		3279	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3280	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3281
		3282	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3283	my $sound = $soundconf->{compat}[$_]
		3284	or next;
		3285
		3286	my $face = cf::face::find "sound/$sound->[1]";
		3287	cf::sound::set $sound->[0] => $face;
		3288	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3289	}
		3290
		3291	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3292	my $face = cf::face::find "sound/$v";
		3293	cf::sound::set $k => $face;
		3294	}
		3295	}
		3296	});
		3297
		3298	register_exticmd fx_want => sub {
		3299	my ($ns, $want) = @_;
		3300
		3301	while (my ($k, $v) = each %$want) {
		3302	$ns->fx_want ($k, $v);
		3303	}
		3304	};
		3305
		3306	sub reload_regions {
		3307	# HACK to clear player env face cache, we need some signal framework
		3308	# for this (global event?)
		3309	%ext::player_env::MUSIC_FACE_CACHE = ();
		3310
		3311	load_resource_file "$MAPDIR/regions"
		3312	or die "unable to load regions file\n";
		3313
		3314	for (cf::region::list) {
		3315	$_->{match} = qr/$_->{match}/
		3316	if exists $_->{match};
		3317	}
		3318	}
		3319
		3320	sub reload_facedata {
		3321	load_facedata "$DATADIR/facedata"
		3322	or die "unable to load facedata\n";
		3323	}
		3324
		3325	sub reload_archetypes {
		3326	load_resource_file "$DATADIR/archetypes"
		3327	or die "unable to load archetypes\n";
		3328	#d# NEED to laod twice to resolve forward references
		3329	# this really needs to be done in an extra post-pass
		3330	# (which needs to be synchronous, so solve it differently)
		3331	load_resource_file "$DATADIR/archetypes"
		3332	or die "unable to load archetypes\n";
		3333	}
		3334
		3335	sub reload_treasures {
		3336	load_resource_file "$DATADIR/treasures"
		3337	or die "unable to load treasurelists\n";
		3338	}
		3339
		3340	sub reload_resources {
		3341	warn "reloading resource files...\n";
		3342
		3343	reload_regions;
		3344	reload_facedata;
		3345	#reload_archetypes;#d#
		3346	reload_archetypes;
		3347	reload_treasures;
		3348
		3349	warn "finished reloading resource files\n";
		3350	}
		3351
		3352	sub init {
		3353	reload_resources;
		3354	}
		3355
		3356	sub reload_config {
1986	open my $fh, "<:utf8", cf::confdir . "/config"	3357	open my $fh, "<:utf8", "$CONFDIR/config"
1987	or return;	3358	or return;
1988		3359
1989	local $/;	3360	local $/;
1990	*CFG = YAML::Syck::Load <$fh>;	3361	*CFG = YAML::Load <$fh>;
		3362
		3363	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3364
		3365	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3366	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3367
		3368	if (exists $CFG{mlockall}) {
		3369	eval {
		3370	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3371	and die "WARNING: m(un)lockall failed: $!\n";
		3372	};
		3373	warn $@ if $@;
		3374	}
1991	}	3375	}
1992		3376
1993	sub main {	3377	sub main {
1994	# we must not ever block the main coroutine	3378	# we must not ever block the main coroutine
1995	local $Coro::idle = sub {	3379	local $Coro::idle = sub {
1996	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3380	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1997	(Coro::unblock_sub {	3381	(async {
1998	Event::one_event;	3382	$Coro::current->{desc} = "IDLE BUG HANDLER";
1999	})->();	3383	EV::loop EV::LOOP_ONESHOT;
		3384	})->prio (Coro::PRIO_MAX);
2000	};	3385	};
2001		3386
2002	cfg_load;	3387	reload_config;
2003	db_load;	3388	db_init;
2004	load_extensions;	3389	load_extensions;
		3390
		3391	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3392	evthread_start IO::AIO::poll_fileno;
2005	Event::loop;	3393	EV::loop;
2006	}	3394	}
2007		3395
2008	#############################################################################	3396	#############################################################################
2009	# initialisation	3397	# initialisation and cleanup
2010		3398
		3399	# install some emergency cleanup handlers
		3400	BEGIN {
		3401	our %SIGWATCHER = ();
		3402	for my $signal (qw(INT HUP TERM)) {
		3403	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3404	cf::cleanup "SIG$signal";
		3405	};
		3406	}
		3407	}
		3408
		3409	sub write_runtime {
		3410	my $runtime = "$LOCALDIR/runtime";
		3411
		3412	# first touch the runtime file to show we are still running:
		3413	# the fsync below can take a very very long time.
		3414
		3415	IO::AIO::aio_utime $runtime, undef, undef;
		3416
		3417	my $guard = cf::lock_acquire "write_runtime";
		3418
		3419	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3420	or return;
		3421
		3422	my $value = $cf::RUNTIME + 90 + 10;
		3423	# 10 is the runtime save interval, for a monotonic clock
		3424	# 60 allows for the watchdog to kill the server.
		3425
		3426	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3427	and return;
		3428
		3429	# always fsync - this file is important
		3430	aio_fsync $fh
		3431	and return;
		3432
		3433	# touch it again to show we are up-to-date
		3434	aio_utime $fh, undef, undef;
		3435
		3436	close $fh
		3437	or return;
		3438
		3439	aio_rename "$runtime~", $runtime
		3440	and return;
		3441
		3442	warn "runtime file written.\n";
		3443
		3444	1
		3445	}
		3446
		3447	sub emergency_save() {
		3448	my $freeze_guard = cf::freeze_mainloop;
		3449
		3450	warn "enter emergency perl save\n";
		3451
		3452	cf::sync_job {
		3453	# use a peculiar iteration method to avoid tripping on perl
		3454	# refcount bugs in for. also avoids problems with players
		3455	# and maps saved/destroyed asynchronously.
		3456	warn "begin emergency player save\n";
		3457	for my $login (keys %cf::PLAYER) {
		3458	my $pl = $cf::PLAYER{$login} or next;
		3459	$pl->valid or next;
		3460	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3461	$pl->save;
		3462	}
		3463	warn "end emergency player save\n";
		3464
		3465	warn "begin emergency map save\n";
		3466	for my $path (keys %cf::MAP) {
		3467	my $map = $cf::MAP{$path} or next;
		3468	$map->valid or next;
		3469	$map->save;
		3470	}
		3471	warn "end emergency map save\n";
		3472
		3473	warn "begin emergency database checkpoint\n";
		3474	BDB::db_env_txn_checkpoint $DB_ENV;
		3475	warn "end emergency database checkpoint\n";
		3476	};
		3477
		3478	warn "leave emergency perl save\n";
		3479	}
		3480
		3481	sub post_cleanup {
		3482	my ($make_core) = @_;
		3483
		3484	warn Carp::longmess "post_cleanup backtrace"
		3485	if $make_core;
		3486	}
		3487
2011	sub reload() {	3488	sub do_reload_perl() {
2012	# can/must only be called in main	3489	# can/must only be called in main
2013	if ($Coro::current != $Coro::main) {	3490	if ($Coro::current != $Coro::main) {
2014	warn "can only reload from main coroutine\n";	3491	warn "can only reload from main coroutine";
2015	return;	3492	return;
2016	}	3493	}
2017		3494
2018	warn "reloading...";	3495	warn "reloading...";
2019		3496
2020	local $FREEZE = 1;	3497	warn "entering sync_job";
		3498
		3499	cf::sync_job {
		3500	cf::write_runtime; # external watchdog should not bark
2021	cf::emergency_save;	3501	cf::emergency_save;
		3502	cf::write_runtime; # external watchdog should not bark
2022		3503
2023	eval {	3504	warn "syncing database to disk";
		3505	BDB::db_env_txn_checkpoint $DB_ENV;
		3506
2024	# if anything goes wrong in here, we should simply crash as we already saved	3507	# if anything goes wrong in here, we should simply crash as we already saved
2025		3508
2026	# cancel all watchers	3509	warn "flushing outstanding aio requests";
2027	for (Event::all_watchers) {	3510	for (;;) {
2028	$_->cancel if $_->data & WF_AUTOCANCEL;	3511	BDB::flush;
		3512	IO::AIO::flush;
		3513	Coro::cede_notself;
		3514	last unless IO::AIO::nreqs || BDB::nreqs;
		3515	warn "iterate...";
2029	}	3516	}
2030		3517
		3518	++$RELOAD;
		3519
2031	# cancel all extension coros	3520	warn "cancelling all extension coros";
2032	$_->cancel for values %EXT_CORO;	3521	$_->cancel for values %EXT_CORO;
2033	%EXT_CORO = ();	3522	%EXT_CORO = ();
2034		3523
2035	# unload all extensions	3524	warn "removing commands";
2036	for (@exts) {	3525	%COMMAND = ();
		3526
		3527	warn "removing ext/exti commands";
		3528	%EXTCMD = ();
		3529	%EXTICMD = ();
		3530
		3531	warn "unloading/nuking all extensions";
		3532	for my $pkg (@EXTS) {
2037	warn "unloading <$_>";	3533	warn "... unloading $pkg";
2038	unload_extension $_;	3534
		3535	if (my $cb = $pkg->can ("unload")) {
		3536	eval {
		3537	$cb->($pkg);
		3538	1
		3539	} or warn "$pkg unloaded, but with errors: $@";
2039	}	3540	}
2040		3541
		3542	warn "... nuking $pkg";
		3543	Symbol::delete_package $pkg;
		3544	}
		3545
2041	# unload all modules loaded from $LIBDIR	3546	warn "unloading all perl modules loaded from $LIBDIR";
2042	while (my ($k, $v) = each %INC) {	3547	while (my ($k, $v) = each %INC) {
2043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3548	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2044		3549
2045	warn "removing <$k>";	3550	warn "... unloading $k";
2046	delete $INC{$k};	3551	delete $INC{$k};
2047		3552
2048	$k =~ s/\.pm$//;	3553	$k =~ s/\.pm$//;
2049	$k =~ s/\//::/g;	3554	$k =~ s/\//::/g;
2050		3555
…		…
2053	}	3558	}
2054		3559
2055	Symbol::delete_package $k;	3560	Symbol::delete_package $k;
2056	}	3561	}
2057		3562
2058	# sync database to disk
2059	cf::db_sync;
2060	IO::AIO::flush;
2061
2062	# get rid of safe::, as good as possible	3563	warn "getting rid of safe::, as good as possible";
2063	Symbol::delete_package "safe::$_"	3564	Symbol::delete_package "safe::$_"
2064	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3565	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2065		3566
2066	# remove register_script_function callbacks
2067	# TODO
2068
2069	# unload cf.pm "a bit"	3567	warn "unloading cf.pm \"a bit\"";
2070	delete $INC{"cf.pm"};	3568	delete $INC{"cf.pm"};
		3569	delete $INC{"cf/pod.pm"};
2071		3570
2072	# don't, removes xs symbols, too,	3571	# don't, removes xs symbols, too,
2073	# and global variables created in xs	3572	# and global variables created in xs
2074	#Symbol::delete_package __PACKAGE__;	3573	#Symbol::delete_package __PACKAGE__;
2075		3574
2076	# reload cf.pm	3575	warn "unload completed, starting to reload now";
		3576
2077	warn "reloading cf.pm";	3577	warn "reloading cf.pm";
2078	require cf;	3578	require cf;
2079	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3579	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2080		3580
2081	# load config and database again	3581	warn "loading config and database again";
2082	cf::cfg_load;	3582	cf::reload_config;
2083	cf::db_load;
2084		3583
2085	# load extensions
2086	warn "load extensions";	3584	warn "loading extensions";
2087	cf::load_extensions;	3585	cf::load_extensions;
2088		3586
2089	# reattach attachments to objects	3587	warn "reattaching attachments to objects/players";
2090	warn "reattach";	3588	_global_reattach; # objects, sockets
2091	_global_reattach;	3589	warn "reattaching attachments to maps";
		3590	reattach $_ for values %MAP;
		3591	warn "reattaching attachments to players";
		3592	reattach $_ for values %PLAYER;
		3593
		3594	warn "leaving sync_job";
		3595
		3596	1
		3597	} or do {
		3598	warn $@;
		3599	cf::cleanup "error while reloading, exiting.";
2092	};	3600	};
2093		3601
2094	if ($@) {	3602	warn "reloaded";
2095	warn $@;
2096	warn "error while reloading, exiting.";
2097	exit 1;
2098	}
2099
2100	warn "reloaded successfully";
2101	};	3603	};
2102		3604
2103	#############################################################################	3605	our $RELOAD_WATCHER; # used only during reload
2104		3606
2105	unless ($LINK_MAP) {	3607	sub reload_perl() {
2106	$LINK_MAP = cf::map::new;	3608	# doing reload synchronously and two reloads happen back-to-back,
		3609	# coro crashes during coro_state_free->destroy here.
2107		3610
2108	$LINK_MAP->width (41);	3611	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2109	$LINK_MAP->height (41);	3612	do_reload_perl;
2110	$LINK_MAP->alloc;	3613	undef $RELOAD_WATCHER;
2111	$LINK_MAP->path ("{link}");	3614	};
2112	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2113	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2114
2115	# dirty hack because... archetypes are not yet loaded
2116	Event->timer (
2117	after => 2,
2118	cb => sub {
2119	$_[0]->w->cancel;
2120
2121	# provide some exits "home"
2122	my $exit = cf::object::new "exit";
2123
2124	$exit->slaying ($EMERGENCY_POSITION->[0]);
2125	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2126	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2127
2128	$LINK_MAP->insert ($exit->clone, 19, 19);
2129	$LINK_MAP->insert ($exit->clone, 19, 20);
2130	$LINK_MAP->insert ($exit->clone, 19, 21);
2131	$LINK_MAP->insert ($exit->clone, 20, 19);
2132	$LINK_MAP->insert ($exit->clone, 20, 21);
2133	$LINK_MAP->insert ($exit->clone, 21, 19);
2134	$LINK_MAP->insert ($exit->clone, 21, 20);
2135	$LINK_MAP->insert ($exit->clone, 21, 21);
2136
2137	$exit->destroy;
2138	});
2139
2140	$LINK_MAP->{deny_save} = 1;
2141	$LINK_MAP->{deny_reset} = 1;
2142
2143	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2144	}	3615	}
2145
2146	register "<global>", __PACKAGE__;
2147		3616
2148	register_command "reload" => sub {	3617	register_command "reload" => sub {
2149	my ($who, $arg) = @_;	3618	my ($who, $arg) = @_;
2150		3619
2151	if ($who->flag (FLAG_WIZ)) {	3620	if ($who->flag (FLAG_WIZ)) {
2152	$who->message ("start of reload.");
2153	reload;
2154	$who->message ("end of reload.");	3621	$who->message ("reloading server.");
		3622	async {
		3623	$Coro::current->{desc} = "perl_reload";
		3624	reload_perl;
		3625	};
2155	}	3626	}
2156	};	3627	};
2157		3628
2158	unshift @INC, $LIBDIR;	3629	unshift @INC, $LIBDIR;
2159		3630
2160	$TICK_WATCHER = Event->timer (	3631	my $bug_warning = 0;
2161	reentrant => 0,	3632
2162	prio => 0,	3633	our @WAIT_FOR_TICK;
2163	at => $NEXT_TICK || $TICK,	3634	our @WAIT_FOR_TICK_BEGIN;
2164	data => WF_AUTOCANCEL,	3635
2165	cb => sub {	3636	sub wait_for_tick {
2166	unless ($FREEZE) {	3637	return if tick_inhibit;
		3638	return if $Coro::current == $Coro::main;
		3639
		3640	my $signal = new Coro::Signal;
		3641	push @WAIT_FOR_TICK, $signal;
		3642	$signal->wait;
		3643	}
		3644
		3645	sub wait_for_tick_begin {
		3646	return if tick_inhibit;
		3647	return if $Coro::current == $Coro::main;
		3648
		3649	my $signal = new Coro::Signal;
		3650	push @WAIT_FOR_TICK_BEGIN, $signal;
		3651	$signal->wait;
		3652	}
		3653
		3654	sub tick {
		3655	if ($Coro::current != $Coro::main) {
		3656	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3657	unless ++$bug_warning > 10;
		3658	return;
		3659	}
		3660
2167	cf::server_tick; # one server iteration	3661	cf::server_tick; # one server iteration
2168	$RUNTIME += $TICK;
2169	}
2170		3662
2171	$NEXT_TICK += $TICK;	3663	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2172		3664	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2173	# if we are delayed by four ticks or more, skip them all	3665	Coro::async_pool {
2174	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3666	$Coro::current->{desc} = "runtime saver";
2175
2176	$TICK_WATCHER->at ($NEXT_TICK);
2177	$TICK_WATCHER->start;
2178	},
2179	);
2180
2181	IO::AIO::max_poll_time $TICK * 0.2;
2182
2183	Event->io (
2184	fd => IO::AIO::poll_fileno,
2185	poll => 'r',
2186	prio => 5,
2187	data => WF_AUTOCANCEL,
2188	cb => \&IO::AIO::poll_cb,
2189	);
2190
2191	Event->timer (
2192	data => WF_AUTOCANCEL,
2193	after => 0,
2194	interval => 10,
2195	cb => sub {
2196	(Coro::unblock_sub {
2197	write_runtime	3667	write_runtime
2198	or warn "ERROR: unable to write runtime file: $!";	3668	or warn "ERROR: unable to write runtime file: $!";
2199	})->();	3669	};
2200	},	3670	}
2201	);	3671
		3672	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3673	$sig->send;
		3674	}
		3675	while (my $sig = shift @WAIT_FOR_TICK) {
		3676	$sig->send;
		3677	}
		3678
		3679	$LOAD = ($NOW - $TICK_START) / $TICK;
		3680	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3681
		3682	if (0) {
		3683	if ($NEXT_TICK) {
		3684	my $jitter = $TICK_START - $NEXT_TICK;
		3685	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3686	warn "jitter $JITTER\n";#d#
		3687	}
		3688	}
		3689	}
		3690
		3691	{
		3692	# configure BDB
		3693
		3694	BDB::min_parallel 8;
		3695	BDB::max_poll_reqs $TICK * 0.1;
		3696	$Coro::BDB::WATCHER->priority (1);
		3697
		3698	unless ($DB_ENV) {
		3699	$DB_ENV = BDB::db_env_create;
		3700	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3701	| BDB::LOG_AUTOREMOVE, 1);
		3702	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3703	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3704
		3705	cf::sync_job {
		3706	eval {
		3707	BDB::db_env_open
		3708	$DB_ENV,
		3709	$BDBDIR,
		3710	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3711	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3712	0666;
		3713
		3714	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3715	};
		3716
		3717	cf::cleanup "db_env_open(db): $@" if $@;
		3718	};
		3719	}
		3720
		3721	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3722	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3723	};
		3724	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3725	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3726	};
		3727	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3728	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3729	};
		3730	}
		3731
		3732	{
		3733	# configure IO::AIO
		3734
		3735	IO::AIO::min_parallel 8;
		3736	IO::AIO::max_poll_time $TICK * 0.1;
		3737	$Coro::AIO::WATCHER->priority (1);
		3738	}
		3739
		3740	my $_log_backtrace;
		3741
		3742	sub _log_backtrace {
		3743	my ($msg, @addr) = @_;
		3744
		3745	$msg =~ s/\n//;
		3746
		3747	# limit the # of concurrent backtraces
		3748	if ($_log_backtrace < 2) {
		3749	++$_log_backtrace;
		3750	async {
		3751	$Coro::current->{desc} = "abt $msg";
		3752
		3753	my @bt = fork_call {
		3754	@addr = map { sprintf "%x", $_ } @addr;
		3755	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3756	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3757	or die "addr2line: $!";
		3758
		3759	my @funcs;
		3760	my @res = <$fh>;
		3761	chomp for @res;
		3762	while (@res) {
		3763	my ($func, $line) = splice @res, 0, 2, ();
		3764	push @funcs, "[$func] $line";
		3765	}
		3766
		3767	@funcs
		3768	};
		3769
		3770	LOG llevInfo, "[ABT] $msg\n";
		3771	LOG llevInfo, "[ABT] $_\n" for @bt;
		3772	--$_log_backtrace;
		3773	};
		3774	} else {
		3775	LOG llevInfo, "[ABT] $msg\n";
		3776	LOG llevInfo, "[ABT] [suppressed]\n";
		3777	}
		3778	}
		3779
		3780	# load additional modules
		3781	use cf::pod;
2202		3782
2203	END { cf::emergency_save }	3783	END { cf::emergency_save }
2204		3784
2205	1	3785	1
2206		3786

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