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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.159 by root, Wed Jan 10 22:50:12 2007 UTC vs.
Revision 1.428 by root, Thu May 1 06:33:19 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
3	use utf8;	24	use utf8;
4	use strict;	25	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV 3.2;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro 3.3 ();	36	use Coro 4.50 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::EV;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
18	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
19		47
		48	use JSON::XS 2.01 ();
		49	use BDB ();
20	use Data::Dumper;	50	use Data::Dumper;
21	use Digest::MD5;	51	use Digest::MD5;
22	use Fcntl;	52	use Fcntl;
		53	use YAML ();
23	use IO::AIO 2.32 ();	54	use IO::AIO 2.51 ();
24	use YAML::Syck ();
25	use Time::HiRes;	55	use Time::HiRes;
		56	use Compress::LZF;
		57	use Digest::MD5 ();
26		58
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	59	# configure various modules to our taste
		60	#
		61	$Storable::canonical = 1; # reduce rsync transfers
		62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		64
		65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
28		66
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		68
36	our %COMMAND = ();	69	our %COMMAND = ();
37	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
38		71
39	our @EXTS = (); # list of extension package names	72	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	75	our %EXT_CORO = (); # coroutines bound to extensions
		76	our %EXT_MAP = (); # pluggable maps
42		77
		78	our $RELOAD; # number of reloads so far
43	our @EVENT;	79	our @EVENT;
44	our $LIBDIR = datadir . "/ext";
45		80
46	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(!)
47	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
48	our $NEXT_TICK;	97	our $NEXT_TICK;
49	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;
50		105
51	our %CFG;	106	our %CFG;
52		107
53	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
54	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
55		111
56	our %PLAYER; # all users	112	our (%PLAYER, %PLAYER_LOADING); # all users
57	our %MAP; # all maps	113	our (%MAP, %MAP_LOADING ); # all maps
58	our $LINK_MAP; # the special {link} map	114	our $LINK_MAP; # the special {link} map, which is always available
59	our $RANDOM_MAPS = cf::localdir . "/random";
60		115
61	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	116	# used to convert map paths into valid unix filenames by replacing / by ∕
62	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		118
		119	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		120	our $LOADAVG; # same thing, but with alpha-smoothing
		121	our $JITTER; # average jitter
		122	our $TICK_START; # for load detecting purposes
63		123
64	binmode STDOUT;	124	binmode STDOUT;
65	binmode STDERR;	125	binmode STDERR;
66		126
67	# read virtual server time, if available	127	# read virtual server time, if available
68	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
69	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
70	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
71	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
72	}	132	}
73		133
74	mkdir cf::localdir;	134	mkdir $_
75	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76	mkdir cf::localdir . "/" . cf::tmpdir;
77	mkdir cf::localdir . "/" . cf::uniquedir;
78	mkdir $RANDOM_MAPS;
79		136
80	# a special map that is always available
81	our $LINK_MAP;
82	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
		138
		139	sub cf::map::normalise;
83		140
84	#############################################################################	141	#############################################################################
85		142
86	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
87		144
…		…
94	=item $cf::RUNTIME	151	=item $cf::RUNTIME
95		152
96	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
97	every server tick.	154	every server tick.
98		155
99	=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
100		159
101	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
102	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.
103		164
104	=item $cf::NOW	165	=item $cf::NOW
105		166
106	The time of the last (current) server tick.	167	The time of the last (current) server tick.
107		168
108	=item $cf::TICK	169	=item $cf::TICK
109		170
110	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
111		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
112	=item %cf::CFG	183	=item %cf::CFG
113		184
114	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
115	from wherever your confdir points to.	186	from wherever your confdir points to.
116		187
117	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	188	=item cf::wait_for_tick, cf::wait_for_tick_begin
118		189
119	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
120	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	191	returns directly I<after> the tick processing (and consequently, can only wake one process
121	processing has been done. Call C<< ->wait >> on them to maximise the	192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
122	window of cpu time available, or simply to synchronise to the server tick.	193
		194	=item @cf::INVOKE_RESULTS
		195
		196	This array contains the results of the last C<invoke ()> call. When
		197	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		198	that call.
123		199
124	=back	200	=back
125		201
126	=cut	202	=cut
127		203
128	BEGIN {	204	BEGIN {
129	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
130	my $msg = join "", @_;	206	my $msg = join "", @_;
131	utf8::encode $msg;
132		207
133	$msg .= "\n"	208	$msg .= "\n"
134	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
135		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
136	LOG llevError, $msg;	213	LOG llevError, $msg;
137	};	214	};
138	}	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#?
139		231
140	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
141	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
142	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
143	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
144	@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';
145	@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)
146		239
147	# 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
148	# within the Safe compartment.	241	# within the Safe compartment.
149	for my $pkg (qw(	242	for my $pkg (qw(
150	cf::global cf::attachable	243	cf::global cf::attachable
…		…
155	)) {	248	)) {
156	no strict 'refs';	249	no strict 'refs';
157	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
158	}	251	}
159		252
160	$Event::DIED = sub {	253	$EV::DIED = sub {
161	warn "error in event callback: @_";	254	warn "error in event callback: @_";
162	};	255	};
		256
		257	#############################################################################
163		258
164	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
165		260
166	=over 4	261	=over 4
167		262
…		…
186	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
187	$d	282	$d
188	} || "[unable to dump $_[0]: '$@']";	283	} || "[unable to dump $_[0]: '$@']";
189	}	284	}
190		285
191	use JSON::Syck (); # TODO# replace by JSON::PC once working
192
193	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
194		287
195	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
196		289
197	=cut
198
199	sub from_json($) {
200	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
201	JSON::Syck::Load $_[0]
202	}
203
204	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
205		291
206	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
207		293
208	=cut	294	=cut
209		295
210	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
211	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
212	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
213	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
214		300
215	=item cf::lock_wait $string	301	=item cf::lock_wait $string
216		302
217	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
218		304
…		…
221	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
222	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	308	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
223	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
224	returned.	310	returned.
225		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
226	Lock names should begin with a unique identifier (for example, cf::map::find	315	Lock names should begin with a unique identifier (for example, cf::map::find
227	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
228		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
229	=cut	322	=cut
230		323
231	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
232		326
233	sub lock_wait($) {	327	sub lock_wait($) {
234	my ($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#
235		334
236	# wait for lock, if any	335	# wait for lock, if any
237	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
238	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
239	Coro::schedule;	338	Coro::schedule;
…		…
245		344
246	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
247	lock_wait $key;	346	lock_wait $key;
248		347
249	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
250		350
251	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
252	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
253	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
254	}	355	}
255	}	356	}
256		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
257	sub freeze_mainloop {	364	sub freeze_mainloop {
258	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
259		366
260	my $guard = Coro::guard { $TICK_WATCHER->start };	367	Coro::guard \&tick_inhibit_dec;
261	$TICK_WATCHER->stop;	368	}
262	$guard	369
		370	=item cf::periodic $interval, $cb
		371
		372	Like EV::periodic, but randomly selects a starting point so that the actions
		373	get spread over timer.
		374
		375	=cut
		376
		377	sub periodic($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
		428	}
		429	};
		430
		431	sub get_slot($;$$) {
		432	return if tick_inhibit || $Coro::current == $Coro::main;
		433
		434	my ($time, $pri, $name) = @_;
		435
		436	$time = $TICK * .6 if $time > $TICK * .6;
		437	my $sig = new Coro::Signal;
		438
		439	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		440	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		441	$SLOT_QUEUE->ready;
		442	$sig->wait;
263	}	443	}
264		444
265	=item cf::async { BLOCK }	445	=item cf::async { BLOCK }
266		446
267	Currently the same as Coro::async_pool, meaning you cannot use	447	Currently the same as Coro::async_pool, meaning you cannot use
…		…
272		452
273	BEGIN { *async = \&Coro::async_pool }	453	BEGIN { *async = \&Coro::async_pool }
274		454
275	=item cf::sync_job { BLOCK }	455	=item cf::sync_job { BLOCK }
276		456
277	The design of crossfire+ requires that the main coro ($Coro::main) is	457	The design of Deliantra requires that the main coroutine ($Coro::main)
278	always able to handle events or runnable, as crossfire+ is only partly	458	is always able to handle events or runnable, as Deliantra is only
279	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	459	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		460	acceptable.
280		461
281	If it must be done, put the blocking parts into C<sync_job>. This will run	462	If it must be done, put the blocking parts into C<sync_job>. This will run
282	the given BLOCK in another coroutine while waiting for the result. The	463	the given BLOCK in another coroutine while waiting for the result. The
283	server will be frozen during this time, so the block should either finish	464	server will be frozen during this time, so the block should either finish
284	fast or be very important.	465	fast or be very important.
…		…
287		468
288	sub sync_job(&) {	469	sub sync_job(&) {
289	my ($job) = @_;	470	my ($job) = @_;
290		471
291	if ($Coro::current == $Coro::main) {	472	if ($Coro::current == $Coro::main) {
		473	my $time = EV::time;
		474
292	# this is the main coro, too bad, we have to block	475	# this is the main coro, too bad, we have to block
293	# till the operation succeeds, freezing the server :/	476	# till the operation succeeds, freezing the server :/
294		477
295	# TODO: use suspend/resume instead	478	LOG llevError, Carp::longmess "sync job";#d#
296	# (but this is cancel-safe)	479
297	my $freeze_guard = freeze_mainloop;	480	my $freeze_guard = freeze_mainloop;
298		481
299	my $busy = 1;	482	my $busy = 1;
300	my @res;	483	my @res;
301		484
302	(async {	485	(async {
		486	$Coro::current->desc ("sync job coro");
303	@res = eval { $job->() };	487	@res = eval { $job->() };
304	warn $@ if $@;	488	warn $@ if $@;
305	undef $busy;	489	undef $busy;
306	})->prio (Coro::PRIO_MAX);	490	})->prio (Coro::PRIO_MAX);
307		491
308	while ($busy) {	492	while ($busy) {
309	Coro::cede or Event::one_event;	493	if (Coro::nready) {
		494	Coro::cede_notself;
		495	} else {
		496	EV::loop EV::LOOP_ONESHOT;
310	}	497	}
		498	}
		499
		500	my $time = EV::time - $time;
		501
		502	$TICK_START += $time; # do not account sync jobs to server load
311		503
312	wantarray ? @res : $res[0]	504	wantarray ? @res : $res[0]
313	} else {	505	} else {
314	# we are in another coroutine, how wonderful, everything just works	506	# we are in another coroutine, how wonderful, everything just works
315		507
…		…
335	$EXT_CORO{$coro+0} = $coro;	527	$EXT_CORO{$coro+0} = $coro;
336		528
337	$coro	529	$coro
338	}	530	}
339		531
340	sub write_runtime {	532	=item fork_call { }, $args
341	my $runtime = cf::localdir . "/runtime";
342		533
343	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	534	Executes the given code block with the given arguments in a seperate
344	or return;	535	process, returning the results. Everything must be serialisable with
		536	Coro::Storable. May, of course, block. Note that the executed sub may
		537	never block itself or use any form of event handling.
345		538
346	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	539	=cut
347	(aio_write $fh, 0, (length $value), $value, 0) <= 0
348	and return;
349		540
350	aio_fsync $fh	541	sub fork_call(&@) {
351	and return;	542	my ($cb, @args) = @_;
352		543
353	close $fh	544	# we seemingly have to make a local copy of the whole thing,
354	or return;	545	# otherwise perl prematurely frees the stuff :/
		546	# TODO: investigate and fix (likely this will be rather laborious)
355		547
356	aio_rename "$runtime~", $runtime	548	my @res = Coro::Util::fork_eval {
357	and return;	549	reset_signals;
		550	&$cb
		551	}, @args;
358		552
		553	wantarray ? @res : $res[-1]
		554	}
		555
		556	=item $coin = coin_from_name $name
		557
		558	=cut
		559
		560	our %coin_alias = (
		561	"silver" => "silvercoin",
		562	"silvercoin" => "silvercoin",
		563	"silvercoins" => "silvercoin",
		564	"gold" => "goldcoin",
		565	"goldcoin" => "goldcoin",
		566	"goldcoins" => "goldcoin",
		567	"platinum" => "platinacoin",
		568	"platinumcoin" => "platinacoin",
		569	"platinumcoins" => "platinacoin",
		570	"platina" => "platinacoin",
		571	"platinacoin" => "platinacoin",
		572	"platinacoins" => "platinacoin",
		573	"royalty" => "royalty",
		574	"royalties" => "royalty",
		575	);
		576
		577	sub coin_from_name($) {
		578	$coin_alias{$_[0]}
		579	? cf::arch::find $coin_alias{$_[0]}
		580	: undef
		581	}
		582
		583	=item $value = cf::db_get $family => $key
		584
		585	Returns a single value from the environment database.
		586
		587	=item cf::db_put $family => $key => $value
		588
		589	Stores the given C<$value> in the family. It can currently store binary
		590	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		591
		592	=item $db = cf::db_table "name"
		593
		594	Create and/or open a new database table. The string must not be "db" and must be unique
		595	within each server.
		596
		597	=cut
		598
		599	sub db_table($) {
		600	my ($name) = @_;
		601	my $db = BDB::db_create $DB_ENV;
		602
		603	eval {
		604	$db->set_flags (BDB::CHKSUM);
		605
		606	utf8::encode $name;
		607	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		608	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		609	cf::cleanup "db_open(db): $!" if $!;
		610	};
		611	cf::cleanup "db_open(db): $@" if $@;
		612
		613	$db
		614	}
		615
		616	our $DB;
		617
		618	sub db_init {
		619	cf::sync_job {
		620	$DB ||= db_table "db";
		621	};
		622	}
		623
		624	sub db_get($$) {
		625	my $key = "$_[0]/$_[1]";
		626
		627	cf::sync_job {
		628	BDB::db_get $DB, undef, $key, my $data;
		629
		630	$! ? ()
		631	: $data
359	1	632	}
		633	}
		634
		635	sub db_put($$$) {
		636	BDB::dbreq_pri 4;
		637	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		638	}
		639
		640	=item cf::cache $id => [$paths...], $processversion => $process
		641
		642	Generic caching function that returns the value of the resource $id,
		643	caching and regenerating as required.
		644
		645	This function can block.
		646
		647	=cut
		648
		649	sub cache {
		650	my ($id, $src, $processversion, $process) = @_;
		651
		652	my $meta =
		653	join "\x00",
		654	$processversion,
		655	map {
		656	aio_stat $_
		657	and Carp::croak "$_: $!";
		658
		659	($_, (stat _)[7,9])
		660	} @$src;
		661
		662	my $dbmeta = db_get cache => "$id/meta";
		663	if ($dbmeta ne $meta) {
		664	# changed, we may need to process
		665
		666	my @data;
		667	my $md5;
		668
		669	for (0 .. $#$src) {
		670	0 <= aio_load $src->[$_], $data[$_]
		671	or Carp::croak "$src->[$_]: $!";
		672	}
		673
		674	# if processing is expensive, check
		675	# checksum first
		676	if (1) {
		677	$md5 =
		678	join "\x00",
		679	$processversion,
		680	map {
		681	cf::cede_to_tick;
		682	($src->[$_], Digest::MD5::md5_hex $data[$_])
		683	} 0.. $#$src;
		684
		685
		686	my $dbmd5 = db_get cache => "$id/md5";
		687	if ($dbmd5 eq $md5) {
		688	db_put cache => "$id/meta", $meta;
		689
		690	return db_get cache => "$id/data";
		691	}
		692	}
		693
		694	my $t1 = Time::HiRes::time;
		695	my $data = $process->(\@data);
		696	my $t2 = Time::HiRes::time;
		697
		698	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		699
		700	db_put cache => "$id/data", $data;
		701	db_put cache => "$id/md5" , $md5;
		702	db_put cache => "$id/meta", $meta;
		703
		704	return $data;
		705	}
		706
		707	db_get cache => "$id/data"
		708	}
		709
		710	=item cf::datalog type => key => value, ...
		711
		712	Log a datalog packet of the given type with the given key-value pairs.
		713
		714	=cut
		715
		716	sub datalog($@) {
		717	my ($type, %kv) = @_;
		718	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
360	}	719	}
361		720
362	=back	721	=back
363		722
364	=cut	723	=cut
365
366	#############################################################################
367
368	package cf::path;
369
370	use overload
371	'""' => \&as_string;
372
373	# used to convert map paths into valid unix filenames by repalcing / by ∕
374	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
375
376	sub new {
377	my ($class, $path, $base) = @_;
378
379	$path = $path->as_string if ref $path;
380
381	my $self = bless { }, $class;
382
383	# {... are special paths that are not touched
384	# ?xxx/... are special absolute paths
385	# ?random/... random maps
386	# /! non-realised random map exit
387	# /... normal maps
388	# ~/... per-player maps without a specific player (DO NOT USE)
389	# ~user/... per-player map of a specific user
390
391	$path =~ s/$PATH_SEP/\//go;
392
393	if ($path =~ /^{/) {
394	# fine as it is
395	} elsif ($path =~ s{^\?random/}{}) {
396	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
397	$self->{random} = cf::from_json $data;
398	} else {
399	if ($path =~ s{^~([^/]+)?}{}) {
400	$self->{user_rel} = 1;
401
402	if (defined $1) {
403	$self->{user} = $1;
404	} elsif ($base =~ m{^~([^/]+)/}) {
405	$self->{user} = $1;
406	} else {
407	warn "cannot resolve user-relative path without user <$path,$base>\n";
408	}
409	} elsif ($path =~ /^\//) {
410	# already absolute
411	} else {
412	$base =~ s{[^/]+/?$}{};
413	return $class->new ("$base/$path");
414	}
415
416	for ($path) {
417	redo if s{/\.?/}{/};
418	redo if s{/[^/]+/\.\./}{/};
419	}
420	}
421
422	$self->{path} = $path;
423
424	$self
425	}
426
427	# the name / primary key / in-game path
428	sub as_string {
429	my ($self) = @_;
430
431	$self->{user_rel} ? "~$self->{user}$self->{path}"
432	: $self->{random} ? "?random/$self->{path}"
433	: $self->{path}
434	}
435
436	# the displayed name, this is a one way mapping
437	sub visible_name {
438	my ($self) = @_;
439
440	# if (my $rmp = $self->{random}) {
441	# # todo: be more intelligent about this
442	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
443	# } else {
444	$self->as_string
445	# }
446	}
447
448	# escape the /'s in the path
449	sub _escaped_path {
450	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
451	$path
452	}
453
454	# the original (read-only) location
455	sub load_path {
456	my ($self) = @_;
457
458	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
459	}
460
461	# the temporary/swap location
462	sub save_path {
463	my ($self) = @_;
464
465	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
466	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
467	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
468	}
469
470	# the unique path, might be eq to save_path
471	sub uniq_path {
472	my ($self) = @_;
473
474	$self->{user_rel} || $self->{random}
475	? undef
476	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
477	}
478
479	# return random map parameters, or undef
480	sub random_map_params {
481	my ($self) = @_;
482
483	$self->{random}
484	}
485
486	# this is somewhat ugly, but style maps do need special treatment
487	sub is_style_map {
488	$_[0]{path} =~ m{^/styles/}
489	}
490
491	package cf;
492		724
493	#############################################################################	725	#############################################################################
494		726
495	=head2 ATTACHABLE OBJECTS	727	=head2 ATTACHABLE OBJECTS
496		728
…		…
498	attach callbacks/event handlers (a collection of which is called an "attachment")	730	attach callbacks/event handlers (a collection of which is called an "attachment")
499	to it. All such attachable objects support the following methods.	731	to it. All such attachable objects support the following methods.
500		732
501	In the following description, CLASS can be any of C<global>, C<object>	733	In the following description, CLASS can be any of C<global>, C<object>
502	C<player>, C<client> or C<map> (i.e. the attachable objects in	734	C<player>, C<client> or C<map> (i.e. the attachable objects in
503	crossfire+).	735	Deliantra).
504		736
505	=over 4	737	=over 4
506		738
507	=item $attachable->attach ($attachment, key => $value...)	739	=item $attachable->attach ($attachment, key => $value...)
508		740
…		…
622	our @CB_TYPE = (); # registry for type (cf-object class) based events	854	our @CB_TYPE = (); # registry for type (cf-object class) based events
623	our @CB_MAP = ();	855	our @CB_MAP = ();
624		856
625	my %attachment;	857	my %attachment;
626		858
		859	sub cf::attachable::thawer_merge {
		860	# simply override everything except _meta
		861	local $_[0]{_meta};
		862	%{$_[0]} = %{$_[1]};
		863	}
		864
627	sub _attach_cb($$$$) {	865	sub _attach_cb($$$$) {
628	my ($registry, $event, $prio, $cb) = @_;	866	my ($registry, $event, $prio, $cb) = @_;
629		867
630	use sort 'stable';	868	use sort 'stable';
631		869
…		…
665	$registry = $CB_TYPE[$object_type] ||= [];	903	$registry = $CB_TYPE[$object_type] ||= [];
666		904
667	} elsif ($type eq "subtype") {	905	} elsif ($type eq "subtype") {
668	defined $object_type or Carp::croak "subtype specified without type";	906	defined $object_type or Carp::croak "subtype specified without type";
669	my $object_subtype = shift @arg;	907	my $object_subtype = shift @arg;
670	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	908	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
671		909
672	} elsif ($type eq "package") {	910	} elsif ($type eq "package") {
673	my $pkg = shift @arg;	911	my $pkg = shift @arg;
674		912
675	while (my ($name, $id) = each %cb_id) {	913	while (my ($name, $id) = each %cb_id) {
…		…
704	_attach $registry, $klass, @attach;	942	_attach $registry, $klass, @attach;
705	}	943	}
706		944
707	$obj->{$name} = \%arg;	945	$obj->{$name} = \%arg;
708	} else {	946	} else {
709	warn "object uses attachment '$name' that is not available, postponing.\n";	947	warn "object uses attachment '$name' which is not available, postponing.\n";
710	}	948	}
711		949
712	$obj->{_attachment}{$name} = undef;	950	$obj->{_attachment}{$name} = undef;
713	}	951	}
714		952
…		…
716	if (ref $_[0]) {	954	if (ref $_[0]) {
717	_object_attach @_;	955	_object_attach @_;
718	} else {	956	} else {
719	_attach shift->_attach_registry, @_;	957	_attach shift->_attach_registry, @_;
720	}	958	}
		959	_recalc_want;
721	};	960	};
722		961
723	# all those should be optimised	962	# all those should be optimised
724	sub cf::attachable::detach {	963	sub cf::attachable::detach {
725	my ($obj, $name) = @_;	964	my ($obj, $name) = @_;
…		…
728	delete $obj->{_attachment}{$name};	967	delete $obj->{_attachment}{$name};
729	reattach ($obj);	968	reattach ($obj);
730	} else {	969	} else {
731	Carp::croak "cannot, currently, detach class attachments";	970	Carp::croak "cannot, currently, detach class attachments";
732	}	971	}
		972	_recalc_want;
733	};	973	};
734		974
735	sub cf::attachable::attached {	975	sub cf::attachable::attached {
736	my ($obj, $name) = @_;	976	my ($obj, $name) = @_;
737		977
…		…
752	";	992	";
753	die if $@;	993	die if $@;
754	}	994	}
755		995
756	our $override;	996	our $override;
757	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	997	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
758		998
759	sub override {	999	sub override {
760	$override = 1;	1000	$override = 1;
761	@invoke_results = ();	1001	@INVOKE_RESULTS = (@_);
762	}	1002	}
763		1003
764	sub do_invoke {	1004	sub do_invoke {
765	my $event = shift;	1005	my $event = shift;
766	my $callbacks = shift;	1006	my $callbacks = shift;
767		1007
768	@invoke_results = ();	1008	@INVOKE_RESULTS = ();
769		1009
770	local $override;	1010	local $override;
771		1011
772	for (@$callbacks) {	1012	for (@$callbacks) {
773	eval { &{$_->[1]} };	1013	eval { &{$_->[1]} };
…		…
782	}	1022	}
783		1023
784	0	1024	0
785	}	1025	}
786		1026
787	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
788		1028
789	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1029	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
790		1030
791	Generate an object-specific event with the given arguments.	1031	Generate an object-specific event with the given arguments.
792		1032
793	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1033	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
794	removed in future versions), and there is no public API to access override	1034	removed in future versions), and there is no public API to access override
795	results (if you must, access C<@cf::invoke_results> directly).	1035	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
796		1036
797	=back	1037	=back
798		1038
799	=cut	1039	=cut
800		1040
801	#############################################################################	1041	#############################################################################
802	# object support	1042	# object support
		1043
		1044	sub _object_equal($$);
		1045	sub _object_equal($$) {
		1046	my ($a, $b) = @_;
		1047
		1048	return 0 unless (ref $a) eq (ref $b);
		1049
		1050	if ("HASH" eq ref $a) {
		1051	my @ka = keys %$a;
		1052	my @kb = keys %$b;
		1053
		1054	return 0 if @ka != @kb;
		1055
		1056	for (0 .. $#ka) {
		1057	return 0 unless $ka[$_] eq $kb[$_];
		1058	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1059	}
		1060
		1061	} elsif ("ARRAY" eq ref $a) {
		1062
		1063	return 0 if @$a != @$b;
		1064
		1065	for (0 .. $#$a) {
		1066	return 0 unless _object_equal $a->[$_], $b->[$_];
		1067	}
		1068
		1069	} elsif ($a ne $b) {
		1070	return 0;
		1071	}
		1072
		1073	1
		1074	}
		1075
		1076	our $SLOW_MERGES;#d#
		1077	sub _can_merge {
		1078	my ($ob1, $ob2) = @_;
		1079
		1080	++$SLOW_MERGES;#d#
		1081
		1082	# we do the slow way here
		1083	return _object_equal $ob1, $ob2
		1084	}
803		1085
804	sub reattach {	1086	sub reattach {
805	# basically do the same as instantiate, without calling instantiate	1087	# basically do the same as instantiate, without calling instantiate
806	my ($obj) = @_;	1088	my ($obj) = @_;
		1089
		1090	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
807		1091
808	my $registry = $obj->registry;	1092	my $registry = $obj->registry;
809		1093
810	@$registry = ();	1094	@$registry = ();
811		1095
…		…
826	cf::attachable->attach (	1110	cf::attachable->attach (
827	prio => -1000000,	1111	prio => -1000000,
828	on_instantiate => sub {	1112	on_instantiate => sub {
829	my ($obj, $data) = @_;	1113	my ($obj, $data) = @_;
830		1114
831	$data = from_json $data;	1115	$data = decode_json $data;
832		1116
833	for (@$data) {	1117	for (@$data) {
834	my ($name, $args) = @$_;	1118	my ($name, $args) = @$_;
835		1119
836	$obj->attach ($name, %{$args || {} });	1120	$obj->attach ($name, %{$args || {} });
…		…
852	sub object_freezer_save {	1136	sub object_freezer_save {
853	my ($filename, $rdata, $objs) = @_;	1137	my ($filename, $rdata, $objs) = @_;
854		1138
855	sync_job {	1139	sync_job {
856	if (length $$rdata) {	1140	if (length $$rdata) {
		1141	utf8::decode (my $decname = $filename);
857	warn sprintf "saving %s (%d,%d)\n",	1142	warn sprintf "saving %s (%d,%d)\n",
858	$filename, length $$rdata, scalar @$objs;	1143	$decname, length $$rdata, scalar @$objs;
859		1144
860	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1145	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
861	chmod SAVE_MODE, $fh;	1146	aio_chmod $fh, SAVE_MODE;
862	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1147	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
863	aio_fsync $fh;	1148	aio_fsync $fh if $cf::USE_FSYNC;
864	close $fh;	1149	aio_close $fh;
865		1150
866	if (@$objs) {	1151	if (@$objs) {
867	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1152	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
868	chmod SAVE_MODE, $fh;	1153	aio_chmod $fh, SAVE_MODE;
869	my $data = Storable::nfreeze { version => 1, objs => $objs };	1154	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
870	aio_write $fh, 0, (length $data), $data, 0;	1155	aio_write $fh, 0, (length $data), $data, 0;
871	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
872	close $fh;	1157	aio_close $fh;
873	aio_rename "$filename.pst~", "$filename.pst";	1158	aio_rename "$filename.pst~", "$filename.pst";
874	}	1159	}
875	} else {	1160	} else {
876	aio_unlink "$filename.pst";	1161	aio_unlink "$filename.pst";
877	}	1162	}
…		…
882	}	1167	}
883	} else {	1168	} else {
884	aio_unlink $filename;	1169	aio_unlink $filename;
885	aio_unlink "$filename.pst";	1170	aio_unlink "$filename.pst";
886	}	1171	}
887	}	1172	};
888	}	1173	}
889		1174
890	sub object_freezer_as_string {	1175	sub object_freezer_as_string {
891	my ($rdata, $objs) = @_;	1176	my ($rdata, $objs) = @_;
892		1177
…		…
904	or return;	1189	or return;
905		1190
906	unless (aio_stat "$filename.pst") {	1191	unless (aio_stat "$filename.pst") {
907	(aio_load "$filename.pst", $av) >= 0	1192	(aio_load "$filename.pst", $av) >= 0
908	or return;	1193	or return;
		1194
909	$av = eval { (Storable::thaw $av)->{objs} };	1195	my $st = eval { Coro::Storable::thaw $av };
		1196	$av = $st->{objs};
910	}	1197	}
911		1198
		1199	utf8::decode (my $decname = $filename);
912	warn sprintf "loading %s (%d)\n",	1200	warn sprintf "loading %s (%d,%d)\n",
913	$filename, length $data, scalar @{$av || []};#d#	1201	$decname, length $data, scalar @{$av || []};
		1202
914	return ($data, $av);	1203	($data, $av)
915	}	1204	}
		1205
		1206	=head2 COMMAND CALLBACKS
		1207
		1208	=over 4
		1209
		1210	=cut
916		1211
917	#############################################################################	1212	#############################################################################
918	# command handling &c	1213	# command handling &c
919		1214
920	=item cf::register_command $name => \&callback($ob,$args);	1215	=item cf::register_command $name => \&callback($ob,$args);
…		…
933	push @{ $COMMAND{$name} }, [$caller, $cb];	1228	push @{ $COMMAND{$name} }, [$caller, $cb];
934	}	1229	}
935		1230
936	=item cf::register_extcmd $name => \&callback($pl,$packet);	1231	=item cf::register_extcmd $name => \&callback($pl,$packet);
937		1232
938	Register a callbackf ro execution when the client sends an extcmd packet.	1233	Register a callback for execution when the client sends an (synchronous)
		1234	extcmd packet. Ext commands will be processed in the order they are
		1235	received by the server, like other user commands. The first argument is
		1236	the logged-in player. Ext commands can only be processed after a player
		1237	has logged in successfully.
939		1238
940	If the callback returns something, it is sent back as if reply was being	1239	If the callback returns something, it is sent back as if reply was being
941	called.	1240	called.
942		1241
		1242	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1243
		1244	Register a callback for execution when the client sends an (asynchronous)
		1245	exticmd packet. Exti commands are processed by the server as soon as they
		1246	are received, i.e. out of order w.r.t. other commands. The first argument
		1247	is a client socket. Exti commands can be received anytime, even before
		1248	log-in.
		1249
		1250	If the callback returns something, it is sent back as if reply was being
		1251	called.
		1252
943	=cut	1253	=cut
944		1254
945	sub register_extcmd {	1255	sub register_extcmd {
946	my ($name, $cb) = @_;	1256	my ($name, $cb) = @_;
947		1257
948	$EXTCMD{$name} = $cb;	1258	$EXTCMD{$name} = $cb;
		1259	}
		1260
		1261	sub register_exticmd {
		1262	my ($name, $cb) = @_;
		1263
		1264	$EXTICMD{$name} = $cb;
949	}	1265	}
950		1266
951	cf::player->attach (	1267	cf::player->attach (
952	on_command => sub {	1268	on_command => sub {
953	my ($pl, $name, $params) = @_;	1269	my ($pl, $name, $params) = @_;
…		…
962	cf::override;	1278	cf::override;
963	},	1279	},
964	on_extcmd => sub {	1280	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1281	my ($pl, $buf) = @_;
966		1282
967	my $msg = eval { from_json $buf };	1283	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1284
969	if (ref $msg) {	1285	if (ref $msg) {
		1286	my ($type, $reply, @payload) =
		1287	"ARRAY" eq ref $msg
		1288	? @$msg
		1289	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1290
		1291	my @reply;
		1292
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1293	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->($pl, $msg)) {	1294	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1295	}
		1296
		1297	$pl->ext_reply ($reply, @reply)
		1298	if $reply;
		1299
975	} else {	1300	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1301	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1302	}
978		1303
979	cf::override;	1304	cf::override;
980	},	1305	},
981	);	1306	);
982		1307
983	sub load_extension {
984	my ($path) = @_;
985
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991
992	warn "loading '$path' into '$pkg'\n";
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @EXTS, $pkg;
1008	}
1009
1010	sub load_extensions {	1308	sub load_extensions {
		1309	cf::sync_job {
		1310	my %todo;
		1311
1011	for my $ext (<$LIBDIR/*.ext>) {	1312	for my $path (<$LIBDIR/*.ext>) {
1012	next unless -r $ext;	1313	next unless -r $path;
1013	eval {	1314
1014	load_extension $ext;	1315	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1316	my $base = $1;
		1317	my $pkg = $1;
		1318	$pkg =~ s/[^[:word:]]/_/g;
		1319	$pkg = "ext::$pkg";
		1320
		1321	open my $fh, "<:utf8", $path
		1322	or die "$path: $!";
		1323
		1324	my $source = do { local $/; <$fh> };
		1325
		1326	my %ext = (
		1327	path => $path,
		1328	base => $base,
		1329	pkg => $pkg,
		1330	);
		1331
		1332	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1333	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1334
		1335	$ext{source} =
		1336	"package $pkg; use strict; use utf8;\n"
		1337	. "#line 1 \"$path\"\n{\n"
		1338	. $source
		1339	. "\n};\n1";
		1340
		1341	$todo{$base} = \%ext;
		1342	}
		1343
		1344	my %done;
		1345	while (%todo) {
		1346	my $progress;
		1347
		1348	while (my ($k, $v) = each %todo) {
		1349	for (split /,\s*/, $v->{meta}{depends}) {
		1350	goto skip
		1351	unless exists $done{$_};
		1352	}
		1353
		1354	warn "... loading '$k' into '$v->{pkg}'\n";
		1355
		1356	unless (eval $v->{source}) {
		1357	my $msg = $@ ? "$v->{path}: $@\n"
		1358	: "$v->{base}: extension inactive.\n";
		1359
		1360	if (exists $v->{meta}{mandatory}) {
		1361	warn $msg;
		1362	cf::cleanup "mandatory extension failed to load, exiting.";
		1363	}
		1364
		1365	warn $msg;
		1366	}
		1367
		1368	$done{$k} = delete $todo{$k};
		1369	push @EXTS, $v->{pkg};
		1370	$progress = 1;
1015	1	1371	}
1016	} or warn "$ext not loaded: $@";	1372
		1373	skip:
		1374	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1375	unless $progress;
		1376	}
1017	}	1377	};
1018	}	1378	}
1019		1379
1020	#############################################################################	1380	#############################################################################
1021	# load/save/clean perl data associated with a map
1022		1381
1023	*cf::mapsupport::on_clean = sub {	1382	=back
1024	my ($map) = @_;
1025
1026	my $path = $map->tmpname;
1027	defined $path or return;
1028
1029	unlink "$path.pst";
1030	};
1031
1032	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1033
1034	#############################################################################
1035		1383
1036	=head2 CORE EXTENSIONS	1384	=head2 CORE EXTENSIONS
1037		1385
1038	Functions and methods that extend core crossfire objects.	1386	Functions and methods that extend core crossfire objects.
1039		1387
…		…
1045		1393
1046	=head3 cf::player	1394	=head3 cf::player
1047		1395
1048	=over 4	1396	=over 4
1049		1397
		1398	=item cf::player::num_playing
		1399
		1400	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1401
		1402	=cut
		1403
		1404	sub num_playing {
		1405	scalar grep
		1406	$_->ob->map
		1407	&& !$_->hidden
		1408	&& !$_->ob->flag (cf::FLAG_WIZ),
		1409	cf::player::list
		1410	}
		1411
1050	=item cf::player::find $login	1412	=item cf::player::find $login
1051		1413
1052	Returns the given player object, loading it if necessary (might block).	1414	Returns the given player object, loading it if necessary (might block).
1053		1415
1054	=cut	1416	=cut
1055		1417
1056	sub playerdir($) {	1418	sub playerdir($) {
1057	cf::localdir	1419	"$PLAYERDIR/"
1058	. "/"
1059	. cf::playerdir
1060	. "/"
1061	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1420	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1062	}	1421	}
1063		1422
1064	sub path($) {	1423	sub path($) {
1065	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1424	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1066		1425
1067	(playerdir $login) . "/$login.pl"	1426	(playerdir $login) . "/playerdata"
1068	}	1427	}
1069		1428
1070	sub find_active($) {	1429	sub find_active($) {
1071	$cf::PLAYER{$_[0]}	1430	$cf::PLAYER{$_[0]}
1072	and $cf::PLAYER{$_[0]}->active	1431	and $cf::PLAYER{$_[0]}->active
…		…
1075		1434
1076	sub exists($) {	1435	sub exists($) {
1077	my ($login) = @_;	1436	my ($login) = @_;
1078		1437
1079	$cf::PLAYER{$login}	1438	$cf::PLAYER{$login}
1080	or cf::sync_job { !aio_stat $login }	1439	or cf::sync_job { !aio_stat path $login }
1081	}	1440	}
1082		1441
1083	sub find($) {	1442	sub find($) {
1084	return $cf::PLAYER{$_[0]} || do {	1443	return $cf::PLAYER{$_[0]} || do {
1085	my $login = $_[0];	1444	my $login = $_[0];
1086		1445
1087	my $guard = cf::lock_acquire "user_find:$login";	1446	my $guard = cf::lock_acquire "user_find:$login";
1088		1447
1089	$cf::PLAYER{$_[0]} || do {	1448	$cf::PLAYER{$_[0]} || do {
1090	my $pl = load_pl path $login	1449	# rename old playerfiles to new ones
		1450	#TODO: remove when no longer required
		1451	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1452	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1453	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1454	aio_unlink +(playerdir $login) . "/$login.pl";
		1455
		1456	my $f = new_from_file cf::object::thawer path $login
1091	or return;	1457	or return;
		1458
		1459	my $pl = cf::player::load_pl $f
		1460	or return;
		1461
		1462	local $cf::PLAYER_LOADING{$login} = $pl;
		1463	$f->resolve_delayed_derefs;
1092	$cf::PLAYER{$login} = $pl	1464	$cf::PLAYER{$login} = $pl
1093	}	1465	}
1094	}	1466	}
1095	}	1467	}
1096		1468
…		…
1105	return if $pl->{deny_save};	1477	return if $pl->{deny_save};
1106		1478
1107	aio_mkdir playerdir $pl, 0770;	1479	aio_mkdir playerdir $pl, 0770;
1108	$pl->{last_save} = $cf::RUNTIME;	1480	$pl->{last_save} = $cf::RUNTIME;
1109		1481
		1482	cf::get_slot 0.01;
		1483
1110	$pl->save_pl ($path);	1484	$pl->save_pl ($path);
1111	Coro::cede;	1485	cf::cede_to_tick;
1112	}	1486	}
1113		1487
1114	sub new($) {	1488	sub new($) {
1115	my ($login) = @_;	1489	my ($login) = @_;
1116		1490
…		…
1122	$cf::PLAYER{$login} = $self;	1496	$cf::PLAYER{$login} = $self;
1123		1497
1124	$self	1498	$self
1125	}	1499	}
1126		1500
		1501	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1502
		1503	=cut
		1504
		1505	sub send_msg {
		1506	my $ns = shift->ns
		1507	or return;
		1508	$ns->send_msg (@_);
		1509	}
		1510
1127	=item $pl->quit_character	1511	=item $pl->quit_character
1128		1512
1129	Nukes the player without looking back. If logged in, the connection will	1513	Nukes the player without looking back. If logged in, the connection will
1130	be destroyed. May block for a long time.	1514	be destroyed. May block for a long time.
1131		1515
1132	=cut	1516	=cut
1133		1517
1134	sub quit_character {	1518	sub quit_character {
1135	my ($pl) = @_;	1519	my ($pl) = @_;
		1520
		1521	my $name = $pl->ob->name;
1136		1522
1137	$pl->{deny_save} = 1;	1523	$pl->{deny_save} = 1;
1138	$pl->password ("*"); # this should lock out the player until we nuked the dir	1524	$pl->password ("*"); # this should lock out the player until we nuked the dir
1139		1525
1140	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1526	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1145	my $path = playerdir $pl;	1531	my $path = playerdir $pl;
1146	my $temp = "$path~$cf::RUNTIME~deleting~";	1532	my $temp = "$path~$cf::RUNTIME~deleting~";
1147	aio_rename $path, $temp;	1533	aio_rename $path, $temp;
1148	delete $cf::PLAYER{$pl->ob->name};	1534	delete $cf::PLAYER{$pl->ob->name};
1149	$pl->destroy;	1535	$pl->destroy;
		1536
		1537	my $prefix = qr<^~\Q$name\E/>;
		1538
		1539	# nuke player maps
		1540	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1541
1150	IO::AIO::aio_rmtree $temp;	1542	IO::AIO::aio_rmtree $temp;
		1543	}
		1544
		1545	=item $pl->kick
		1546
		1547	Kicks a player out of the game. This destroys the connection.
		1548
		1549	=cut
		1550
		1551	sub kick {
		1552	my ($pl, $kicker) = @_;
		1553
		1554	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1555	$pl->killer ("kicked");
		1556	$pl->ns->destroy;
1151	}	1557	}
1152		1558
1153	=item cf::player::list_logins	1559	=item cf::player::list_logins
1154		1560
1155	Returns am arrayref of all valid playernames in the system, can take a	1561	Returns am arrayref of all valid playernames in the system, can take a
1156	while and may block, so not sync_job-capable, ever.	1562	while and may block, so not sync_job-capable, ever.
1157		1563
1158	=cut	1564	=cut
1159		1565
1160	sub list_logins {	1566	sub list_logins {
1161	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1567	my $dirs = aio_readdir $PLAYERDIR
1162	or return [];	1568	or return [];
1163		1569
1164	my @logins;	1570	my @logins;
1165		1571
1166	for my $login (@$dirs) {	1572	for my $login (@$dirs) {
		1573	my $path = path $login;
		1574
		1575	# a .pst is a dead give-away for a valid player
		1576	# if no pst file found, open and chekc for blocked users
		1577	if (aio_stat "$path.pst") {
1167	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1578	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1168	aio_read $fh, 0, 512, my $buf, 0 or next;	1579	aio_read $fh, 0, 512, my $buf, 0 or next;
1169	$buf !~ /^password -------------$/m or next; # official not-valid tag	1580	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1581	}
1170		1582
1171	utf8::decode $login;	1583	utf8::decode $login;
1172	push @logins, $login;	1584	push @logins, $login;
1173	}	1585	}
1174		1586
1175	\@logins	1587	\@logins
1176	}	1588	}
1177		1589
1178	=item $player->maps	1590	=item $player->maps
1179		1591
1180	Returns an arrayref of cf::path's of all maps that are private for this	1592	Returns an arrayref of map paths that are private for this
1181	player. May block.	1593	player. May block.
1182		1594
1183	=cut	1595	=cut
1184		1596
1185	sub maps($) {	1597	sub maps($) {
1186	my ($pl) = @_;	1598	my ($pl) = @_;
		1599
		1600	$pl = ref $pl ? $pl->ob->name : $pl;
1187		1601
1188	my $files = aio_readdir playerdir $pl	1602	my $files = aio_readdir playerdir $pl
1189	or return;	1603	or return;
1190		1604
1191	my @paths;	1605	my @paths;
…		…
1193	for (@$files) {	1607	for (@$files) {
1194	utf8::decode $_;	1608	utf8::decode $_;
1195	next if /\.(?:pl|pst)$/;	1609	next if /\.(?:pl|pst)$/;
1196	next unless /^$PATH_SEP/o;	1610	next unless /^$PATH_SEP/o;
1197		1611
1198	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1612	push @paths, cf::map::normalise "~$pl/$_";
1199	}	1613	}
1200		1614
1201	\@paths	1615	\@paths
1202	}	1616	}
1203		1617
		1618	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1619
		1620	Expand crossfire pod fragments into protocol xml.
		1621
		1622	=cut
		1623
		1624	use re 'eval';
		1625
		1626	my $group;
		1627	my $interior; $interior = qr{
		1628	# match a pod interior sequence sans C<< >>
		1629	(?:
		1630	\ (.*?)\ (?{ $group = $^N })
		1631	| < (??{$interior}) >
		1632	)
		1633	}x;
		1634
		1635	sub expand_cfpod {
		1636	my ($self, $pod) = @_;
		1637
		1638	my $xml;
		1639
		1640	while () {
		1641	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1642	$group = $1;
		1643
		1644	$group =~ s/&/&amp;/g;
		1645	$group =~ s/</&lt;/g;
		1646
		1647	$xml .= $group;
		1648	} elsif ($pod =~ m%\G
		1649	([BCGHITU])
		1650	<
		1651	(?:
		1652	([^<>]*) (?{ $group = $^N })
		1653	| < $interior >
		1654	)
		1655	>
		1656	%gcsx
		1657	) {
		1658	my ($code, $data) = ($1, $group);
		1659
		1660	if ($code eq "B") {
		1661	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1662	} elsif ($code eq "I") {
		1663	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1664	} elsif ($code eq "U") {
		1665	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1666	} elsif ($code eq "C") {
		1667	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1668	} elsif ($code eq "T") {
		1669	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1670	} elsif ($code eq "G") {
		1671	my ($male, $female) = split /\|/, $data;
		1672	$data = $self->gender ? $female : $male;
		1673	$xml .= expand_cfpod ($self, $data);
		1674	} elsif ($code eq "H") {
		1675	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1676	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1677	"")
		1678	[$self->{hintmode}];
		1679	} else {
		1680	$xml .= "error processing '$code($data)' directive";
		1681	}
		1682	} else {
		1683	if ($pod =~ /\G(.+)/) {
		1684	warn "parse error while expanding $pod (at $1)";
		1685	}
		1686	last;
		1687	}
		1688	}
		1689
		1690	for ($xml) {
		1691	# create single paragraphs (very hackish)
		1692	s/(?<=\S)\n(?=\w)/ /g;
		1693
		1694	# compress some whitespace
		1695	s/\s+\n/\n/g; # ws line-ends
		1696	s/\n\n+/\n/g; # double lines
		1697	s/^\n+//; # beginning lines
		1698	s/\n+$//; # ending lines
		1699	}
		1700
		1701	$xml
		1702	}
		1703
		1704	no re 'eval';
		1705
		1706	sub hintmode {
		1707	$_[0]{hintmode} = $_[1] if @_ > 1;
		1708	$_[0]{hintmode}
		1709	}
		1710
1204	=item $player->ext_reply ($msgid, $msgtype, %msg)	1711	=item $player->ext_reply ($msgid, @msg)
1205		1712
1206	Sends an ext reply to the player.	1713	Sends an ext reply to the player.
1207		1714
1208	=cut	1715	=cut
1209		1716
1210	sub ext_reply($$$%) {	1717	sub ext_reply($$@) {
1211	my ($self, $id, %msg) = @_;	1718	my ($self, $id, @msg) = @_;
1212		1719
1213	$msg{msgid} = $id;	1720	$self->ns->ext_reply ($id, @msg)
1214
1215	$self->send ("ext " . cf::to_json \%msg);
1216	}	1721	}
1217		1722
1218	package cf;	1723	=item $player->ext_msg ($type, @msg)
		1724
		1725	Sends an ext event to the client.
		1726
		1727	=cut
		1728
		1729	sub ext_msg($$@) {
		1730	my ($self, $type, @msg) = @_;
		1731
		1732	$self->ns->ext_msg ($type, @msg);
		1733	}
		1734
		1735	=head3 cf::region
		1736
		1737	=over 4
		1738
		1739	=cut
		1740
		1741	package cf::region;
		1742
		1743	=item cf::region::find_by_path $path
		1744
		1745	Tries to decuce the likely region for a map knowing only its path.
		1746
		1747	=cut
		1748
		1749	sub find_by_path($) {
		1750	my ($path) = @_;
		1751
		1752	my ($match, $specificity);
		1753
		1754	for my $region (list) {
		1755	if ($region->{match} && $path =~ $region->{match}) {
		1756	($match, $specificity) = ($region, $region->specificity)
		1757	if $region->specificity > $specificity;
		1758	}
		1759	}
		1760
		1761	$match
		1762	}
1219		1763
1220	=back	1764	=back
1221
1222		1765
1223	=head3 cf::map	1766	=head3 cf::map
1224		1767
1225	=over 4	1768	=over 4
1226		1769
…		…
1229	package cf::map;	1772	package cf::map;
1230		1773
1231	use Fcntl;	1774	use Fcntl;
1232	use Coro::AIO;	1775	use Coro::AIO;
1233		1776
		1777	use overload
		1778	'""' => \&as_string,
		1779	fallback => 1;
		1780
1234	our $MAX_RESET = 3600;	1781	our $MAX_RESET = 3600;
1235	our $DEFAULT_RESET = 3000;	1782	our $DEFAULT_RESET = 3000;
1236		1783
1237	sub generate_random_map {	1784	sub generate_random_map {
1238	my ($path, $rmp) = @_;	1785	my ($self, $rmp) = @_;
		1786
		1787	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1239		1788
1240	# mit "rum" bekleckern, nicht	1789	# mit "rum" bekleckern, nicht
1241	cf::map::_create_random_map	1790	$self->_create_random_map (
1242	$path,
1243	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1791	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1244	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1792	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1245	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1793	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1246	$rmp->{exit_on_final_map},	1794	$rmp->{exit_on_final_map},
1247	$rmp->{xsize}, $rmp->{ysize},	1795	$rmp->{xsize}, $rmp->{ysize},
1248	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1796	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1249	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1797	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1250	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1798	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1251	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1799	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1252	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1800	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1253	(cf::region::find $rmp->{region})	1801	(cf::region::find $rmp->{region}), $rmp->{custom}
		1802	)
		1803	}
		1804
		1805	=item cf::map->register ($regex, $prio)
		1806
		1807	Register a handler for the map path matching the given regex at the
		1808	givne priority (higher is better, built-in handlers have priority 0, the
		1809	default).
		1810
		1811	=cut
		1812
		1813	sub register {
		1814	my (undef, $regex, $prio) = @_;
		1815	my $pkg = caller;
		1816
		1817	no strict;
		1818	push @{"$pkg\::ISA"}, __PACKAGE__;
		1819
		1820	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1821	}
		1822
		1823	# also paths starting with '/'
		1824	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1825
		1826	sub thawer_merge {
		1827	my ($self, $merge) = @_;
		1828
		1829	# we have to keep some variables in memory intact
		1830	local $self->{path};
		1831	local $self->{load_path};
		1832
		1833	$self->SUPER::thawer_merge ($merge);
		1834	}
		1835
		1836	sub normalise {
		1837	my ($path, $base) = @_;
		1838
		1839	$path = "$path"; # make sure its a string
		1840
		1841	$path =~ s/\.map$//;
		1842
		1843	# map plan:
		1844	#
		1845	# /! non-realised random map exit (special hack!)
		1846	# {... are special paths that are not being touched
		1847	# ?xxx/... are special absolute paths
		1848	# ?random/... random maps
		1849	# /... normal maps
		1850	# ~user/... per-player map of a specific user
		1851
		1852	$path =~ s/$PATH_SEP/\//go;
		1853
		1854	# treat it as relative path if it starts with
		1855	# something that looks reasonable
		1856	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1857	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1858
		1859	$base =~ s{[^/]+/?$}{};
		1860	$path = "$base/$path";
		1861	}
		1862
		1863	for ($path) {
		1864	redo if s{//}{/};
		1865	redo if s{/\.?/}{/};
		1866	redo if s{/[^/]+/\.\./}{/};
		1867	}
		1868
		1869	$path
		1870	}
		1871
		1872	sub new_from_path {
		1873	my (undef, $path, $base) = @_;
		1874
		1875	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1876
		1877	$path = normalise $path, $base;
		1878
		1879	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1880	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1881	my $self = bless cf::map::new, $pkg;
		1882	$self->{path} = $path; $self->path ($path);
		1883	$self->init; # pass $1 etc.
		1884	return $self;
		1885	}
		1886	}
		1887
		1888	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1889	()
		1890	}
		1891
		1892	sub init {
		1893	my ($self) = @_;
		1894
		1895	$self
		1896	}
		1897
		1898	sub as_string {
		1899	my ($self) = @_;
		1900
		1901	"$self->{path}"
		1902	}
		1903
		1904	# the displayed name, this is a one way mapping
		1905	sub visible_name {
		1906	&as_string
		1907	}
		1908
		1909	# the original (read-only) location
		1910	sub load_path {
		1911	my ($self) = @_;
		1912
		1913	"$MAPDIR/$self->{path}.map"
		1914	}
		1915
		1916	# the temporary/swap location
		1917	sub save_path {
		1918	my ($self) = @_;
		1919
		1920	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1921	"$TMPDIR/$path.map"
		1922	}
		1923
		1924	# the unique path, undef == no special unique path
		1925	sub uniq_path {
		1926	my ($self) = @_;
		1927
		1928	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1929	"$UNIQUEDIR/$path"
1254	}	1930	}
1255		1931
1256	# and all this just because we cannot iterate over	1932	# and all this just because we cannot iterate over
1257	# all maps in C++...	1933	# all maps in C++...
1258	sub change_all_map_light {	1934	sub change_all_map_light {
…		…
1260		1936
1261	$_->change_map_light ($change)	1937	$_->change_map_light ($change)
1262	for grep $_->outdoor, values %cf::MAP;	1938	for grep $_->outdoor, values %cf::MAP;
1263	}	1939	}
1264		1940
		1941	sub decay_objects {
		1942	my ($self) = @_;
		1943
		1944	return if $self->{deny_reset};
		1945
		1946	$self->do_decay_objects;
		1947	}
		1948
		1949	sub unlink_save {
		1950	my ($self) = @_;
		1951
		1952	utf8::encode (my $save = $self->save_path);
		1953	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1954	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1955	}
		1956
1265	sub try_load_header($) {	1957	sub load_header_from($) {
1266	my ($path) = @_;	1958	my ($self, $path) = @_;
1267		1959
1268	utf8::encode $path;	1960	utf8::encode $path;
1269	aio_open $path, O_RDONLY, 0	1961	my $f = new_from_file cf::object::thawer $path
1270	or return;	1962	or return;
1271		1963
1272	my $map = cf::map::new	1964	$self->_load_header ($f)
1273	or return;	1965	or return;
1274		1966
1275	# for better error messages only, will be overwritten	1967	local $MAP_LOADING{$self->{path}} = $self;
1276	$map->path ($path);	1968	$f->resolve_delayed_derefs;
1277		1969
1278	$map->load_header ($path)	1970	$self->{load_path} = $path;
		1971
		1972	1
		1973	}
		1974
		1975	sub load_header_orig {
		1976	my ($self) = @_;
		1977
		1978	$self->load_header_from ($self->load_path)
		1979	}
		1980
		1981	sub load_header_temp {
		1982	my ($self) = @_;
		1983
		1984	$self->load_header_from ($self->save_path)
		1985	}
		1986
		1987	sub prepare_temp {
		1988	my ($self) = @_;
		1989
		1990	$self->last_access ((delete $self->{last_access})
		1991	|| $cf::RUNTIME); #d#
		1992	# safety
		1993	$self->{instantiate_time} = $cf::RUNTIME
		1994	if $self->{instantiate_time} > $cf::RUNTIME;
		1995	}
		1996
		1997	sub prepare_orig {
		1998	my ($self) = @_;
		1999
		2000	$self->{load_original} = 1;
		2001	$self->{instantiate_time} = $cf::RUNTIME;
		2002	$self->last_access ($cf::RUNTIME);
		2003	$self->instantiate;
		2004	}
		2005
		2006	sub load_header {
		2007	my ($self) = @_;
		2008
		2009	if ($self->load_header_temp) {
		2010	$self->prepare_temp;
		2011	} else {
		2012	$self->load_header_orig
1279	or return;	2013	or return;
		2014	$self->prepare_orig;
		2015	}
1280		2016
1281	$map->{load_path} = $path;	2017	$self->{deny_reset} = 1
		2018	if $self->no_reset;
1282		2019
1283	$map	2020	$self->default_region (cf::region::find_by_path $self->{path})
		2021	unless $self->default_region;
		2022
		2023	1
1284	}	2024	}
1285		2025
1286	sub find;	2026	sub find;
1287	sub find {	2027	sub find {
1288	my ($path, $origin) = @_;	2028	my ($path, $origin) = @_;
1289		2029
1290	#warn "find<$path,$origin>\n";#d#
1291
1292	$path = new cf::path $path, $origin && $origin->path;	2030	$path = normalise $path, $origin && $origin->path;
1293	my $key = $path->as_string;
1294		2031
		2032	cf::lock_wait "map_data:$path";#d#remove
1295	cf::lock_wait "map_find:$key";	2033	cf::lock_wait "map_find:$path";
1296		2034
1297	$cf::MAP{$key} || do {	2035	$cf::MAP{$path} || do {
1298	my $guard = cf::lock_acquire "map_find:$key";	2036	my $guard1 = cf::lock_acquire "map_find:$path";
		2037	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1299		2038
1300	# do it the slow way	2039	my $map = new_from_path cf::map $path
1301	my $map = try_load_header $path->save_path;
1302
1303	Coro::cede;
1304
1305	if ($map) {
1306	$map->last_access ((delete $map->{last_access})
1307	|| $cf::RUNTIME); #d#
1308	# safety
1309	$map->{instantiate_time} = $cf::RUNTIME
1310	if $map->{instantiate_time} > $cf::RUNTIME;
1311	} else {
1312	if (my $rmp = $path->random_map_params) {
1313	$map = generate_random_map $key, $rmp;
1314	} else {
1315	$map = try_load_header $path->load_path;
1316	}
1317
1318	$map or return;	2040	or return;
1319		2041
1320	$map->{load_original} = 1;
1321	$map->{instantiate_time} = $cf::RUNTIME;
1322	$map->last_access ($cf::RUNTIME);
1323	$map->instantiate;
1324
1325	# per-player maps become, after loading, normal maps
1326	$map->per_player (0) if $path->{user_rel};
1327	}
1328
1329	$map->path ($key);
1330	$map->{path} = $path;
1331	$map->{last_save} = $cf::RUNTIME;	2042	$map->{last_save} = $cf::RUNTIME;
1332		2043
1333	Coro::cede;	2044	$map->load_header
		2045	or return;
1334		2046
1335	if ($map->should_reset) {	2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2048	# doing this can freeze the server in a sync job, obviously
		2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard1;
		2051	undef $guard2;
1336	$map->reset;	2052	$map->reset;
1337	undef $guard;
1338	$map = find $path	2053	return find $path;
1339	or return;
1340	}	2054	}
1341		2055
1342	$cf::MAP{$key} = $map	2056	$cf::MAP{$path} = $map
1343	}	2057	}
1344	}	2058	}
		2059
		2060	sub pre_load { }
		2061	sub post_load { }
1345		2062
1346	sub load {	2063	sub load {
1347	my ($self) = @_;	2064	my ($self) = @_;
1348		2065
		2066	local $self->{deny_reset} = 1; # loading can take a long time
		2067
1349	my $path = $self->{path};	2068	my $path = $self->{path};
		2069
		2070	{
1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2071	my $guard = cf::lock_acquire "map_data:$path";
1351		2072
		2073	return unless $self->valid;
1352	return if $self->in_memory != cf::MAP_SWAPPED;	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
1353		2075
1354	$self->in_memory (cf::MAP_LOADING);	2076	$self->in_memory (cf::MAP_LOADING);
1355		2077
1356	$self->alloc;	2078	$self->alloc;
1357	$self->load_objects ($self->{load_path}, 1)	2079
		2080	$self->pre_load;
		2081	cf::cede_to_tick;
		2082
		2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
		2085	$self->_load_objects ($f)
1358	or return;	2086	or return;
1359		2087
1360	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2088	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1361	if delete $self->{load_original};	2089	if delete $self->{load_original};
1362		2090
1363	if (my $uniq = $path->uniq_path) {	2091	if (my $uniq = $self->uniq_path) {
1364	utf8::encode $uniq;	2092	utf8::encode $uniq;
1365	if (aio_open $uniq, O_RDONLY, 0) {	2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
1366	$self->clear_unique_items;	2095	$self->clear_unique_items;
1367	$self->load_objects ($uniq, 0);	2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
1368	}	2099	}
1369	}	2100	}
1370		2101
1371	Coro::cede;	2102	$f->resolve_delayed_derefs;
1372		2103
		2104	cf::cede_to_tick;
1373	# now do the right thing for maps	2105	# now do the right thing for maps
1374	$self->link_multipart_objects;	2106	$self->link_multipart_objects;
1375
1376	if ($self->{path}->is_style_map) {
1377	$self->{deny_save} = 1;
1378	$self->{deny_reset} = 1;
1379	} else {
1380	$self->fix_auto_apply;
1381	$self->decay_objects;
1382	$self->update_buttons;
1383	$self->set_darkness_map;
1384	$self->difficulty ($self->estimate_difficulty)	2107	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	2108	unless $self->difficulty;
		2109	cf::cede_to_tick;
		2110
		2111	unless ($self->{deny_activate}) {
		2112	$self->decay_objects;
		2113	$self->fix_auto_apply;
		2114	$self->update_buttons;
		2115	cf::cede_to_tick;
		2116	$self->set_darkness_map;
		2117	cf::cede_to_tick;
1386	$self->activate;	2118	$self->activate;
1387	}	2119	}
1388		2120
1389	Coro::cede;	2121	$self->{last_save} = $cf::RUNTIME;
		2122	$self->last_access ($cf::RUNTIME);
1390		2123
1391	$self->in_memory (cf::MAP_IN_MEMORY);	2124	$self->in_memory (cf::MAP_ACTIVE);
		2125	}
		2126
		2127	$self->post_load;
		2128	}
		2129
		2130	sub customise_for {
		2131	my ($self, $ob) = @_;
		2132
		2133	return find "~" . $ob->name . "/" . $self->{path}
		2134	if $self->per_player;
		2135
		2136	# return find "?party/" . $ob->name . "/" . $self->{path}
		2137	# if $self->per_party;
		2138
		2139	$self
1392	}	2140	}
1393		2141
1394	# find and load all maps in the 3x3 area around a map	2142	# find and load all maps in the 3x3 area around a map
1395	sub load_diag {	2143	sub load_neighbours {
1396	my ($map) = @_;	2144	my ($map) = @_;
1397		2145
1398	my @diag; # diagonal neighbours	2146	my @neigh; # diagonal neighbours
1399		2147
1400	for (0 .. 3) {	2148	for (0 .. 3) {
1401	my $neigh = $map->tile_path ($_)	2149	my $neigh = $map->tile_path ($_)
1402	or next;	2150	or next;
1403	$neigh = find $neigh, $map	2151	$neigh = find $neigh, $map
1404	or next;	2152	or next;
1405	$neigh->load;	2153	$neigh->load;
1406		2154
		2155	push @neigh,
1407	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2156	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1408	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2157	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1409	}	2158	}
1410		2159
1411	for (@diag) {	2160	for (grep defined $_->[0], @neigh) {
		2161	my ($path, $origin) = @$_;
1412	my $neigh = find @$_	2162	my $neigh = find $path, $origin
1413	or next;	2163	or next;
1414	$neigh->load;	2164	$neigh->load;
1415	}	2165	}
1416	}	2166	}
1417		2167
…		…
1422	}	2172	}
1423		2173
1424	sub do_load_sync {	2174	sub do_load_sync {
1425	my ($map) = @_;	2175	my ($map) = @_;
1426		2176
		2177	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2178	if $Coro::current == $Coro::main;
		2179
1427	cf::sync_job { $map->load };	2180	cf::sync_job { $map->load };
1428	}	2181	}
1429		2182
1430	our %MAP_PREFETCH;	2183	our %MAP_PREFETCH;
		2184	our $MAP_PREFETCHER = undef;
		2185
		2186	sub find_async {
		2187	my ($path, $origin, $load) = @_;
		2188
		2189	$path = normalise $path, $origin && $origin->{path};
		2190
		2191	if (my $map = $cf::MAP{$path}) {
		2192	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2193	}
		2194
		2195	$MAP_PREFETCH{$path} |= $load;
		2196
1431	our $MAP_PREFETCHER = Coro::async {	2197	$MAP_PREFETCHER ||= cf::async {
1432	while () {	2198	$Coro::current->{desc} = "map prefetcher";
		2199
1433	while (%MAP_PREFETCH) {	2200	while (%MAP_PREFETCH) {
1434	my $key = each %MAP_PREFETCH	2201	while (my ($k, $v) = each %MAP_PREFETCH) {
1435	or next;	2202	if (my $map = find $k) {
		2203	$map->load if $v;
		2204	}
		2205
1436	my $path = delete $MAP_PREFETCH{$key};	2206	delete $MAP_PREFETCH{$k};
1437
1438	my $map = find $path
1439	or next;
1440	$map->load;
1441	}	2207	}
1442	Coro::schedule;	2208	}
		2209	undef $MAP_PREFETCHER;
1443	}	2210	};
1444	};
1445
1446	sub find_async {
1447	my ($path, $origin) = @_;
1448
1449	$path = new cf::path $path, $origin && $origin->path;
1450	my $key = $path->as_string;
1451
1452	if (my $map = $cf::MAP{$key}) {
1453	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1454	}
1455
1456	$MAP_PREFETCH{$key} = $path;
1457	$MAP_PREFETCHER->ready;	2211	$MAP_PREFETCHER->prio (6);
1458		2212
1459	()	2213	()
1460	}	2214	}
1461		2215
1462	sub save {	2216	sub save {
1463	my ($self) = @_;	2217	my ($self) = @_;
1464		2218
1465	my $lock = cf::lock_acquire "map_data:" . $self->path;	2219	my $lock = cf::lock_acquire "map_data:$self->{path}";
1466		2220
1467	$self->{last_save} = $cf::RUNTIME;	2221	$self->{last_save} = $cf::RUNTIME;
1468		2222
1469	return unless $self->dirty;	2223	return unless $self->dirty;
1470		2224
1471	my $save = $self->{path}->save_path; utf8::encode $save;	2225	my $save = $self->save_path; utf8::encode $save;
1472	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2226	my $uniq = $self->uniq_path; utf8::encode $uniq;
1473		2227
1474	$self->{load_path} = $save;	2228	$self->{load_path} = $save;
1475		2229
1476	return if $self->{deny_save};	2230	return if $self->{deny_save};
1477		2231
1478	local $self->{last_access} = $self->last_access;#d#	2232	local $self->{last_access} = $self->last_access;#d#
1479		2233
1480	cf::async {	2234	cf::async {
		2235	$Coro::current->{desc} = "map player save";
1481	$_->contr->save for $self->players;	2236	$_->contr->save for $self->players;
1482	};	2237	};
1483		2238
		2239	cf::get_slot 0.02;
		2240
1484	if ($uniq) {	2241	if ($uniq) {
1485	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2242	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1486	$self->save_objects ($uniq, cf::IO_UNIQUES);	2243	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1487	} else {	2244	} else {
1488	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1489	}	2246	}
1490	}	2247	}
1491		2248
1492	sub swap_out {	2249	sub swap_out {
1493	my ($self) = @_;	2250	my ($self) = @_;
1494		2251
1495	# save first because save cedes	2252	# save first because save cedes
1496	$self->save;	2253	$self->save;
1497		2254
1498	my $lock = cf::lock_acquire "map_data:" . $self->path;	2255	my $lock = cf::lock_acquire "map_data:$self->{path}";
1499		2256
1500	return if $self->players;	2257	return if $self->players;
1501	return if $self->in_memory != cf::MAP_IN_MEMORY;	2258	return if $self->in_memory != cf::MAP_ACTIVE;
1502	return if $self->{deny_save};	2259	return if $self->{deny_save};
1503		2260
		2261	$self->in_memory (cf::MAP_SWAPPED);
		2262
		2263	$self->deactivate;
		2264	$_->clear_links_to ($self) for values %cf::MAP;
1504	$self->clear;	2265	$self->clear;
1505	$self->in_memory (cf::MAP_SWAPPED);
1506	}	2266	}
1507		2267
1508	sub reset_at {	2268	sub reset_at {
1509	my ($self) = @_;	2269	my ($self) = @_;
1510		2270
1511	# TODO: safety, remove and allow resettable per-player maps	2271	# TODO: safety, remove and allow resettable per-player maps
1512	return 1e99 if $self->{path}{user_rel};
1513	return 1e99 if $self->{deny_reset};	2272	return 1e99 if $self->{deny_reset};
1514		2273
1515	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2274	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1516	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2275	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1517		2276
…		…
1522	my ($self) = @_;	2281	my ($self) = @_;
1523		2282
1524	$self->reset_at <= $cf::RUNTIME	2283	$self->reset_at <= $cf::RUNTIME
1525	}	2284	}
1526		2285
1527	sub unlink_save {
1528	my ($self) = @_;
1529
1530	utf8::encode (my $save = $self->{path}->save_path);
1531	aioreq_pri 3; IO::AIO::aio_unlink $save;
1532	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1533	}
1534
1535	sub rename {
1536	my ($self, $new_path) = @_;
1537
1538	$self->unlink_save;
1539
1540	delete $cf::MAP{$self->path};
1541	$self->{path} = new cf::path $new_path;
1542	$self->path ($self->{path}->as_string);
1543	$cf::MAP{$self->path} = $self;
1544
1545	$self->save;
1546	}
1547
1548	sub reset {	2286	sub reset {
1549	my ($self) = @_;	2287	my ($self) = @_;
1550		2288
1551	my $lock = cf::lock_acquire "map_data:" . $self->path;	2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
1552		2290
1553	return if $self->players;	2291	return if $self->players;
1554	return if $self->{path}{user_rel};#d#
1555		2292
1556	warn "resetting map ", $self->path;#d#	2293	warn "resetting map ", $self->path;
		2294
		2295	$self->in_memory (cf::MAP_SWAPPED);
		2296
		2297	# need to save uniques path
		2298	unless ($self->{deny_save}) {
		2299	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2300
		2301	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2302	if $uniq;
		2303	}
1557		2304
1558	delete $cf::MAP{$self->path};	2305	delete $cf::MAP{$self->path};
1559		2306
		2307	$self->deactivate;
1560	$_->clear_links_to ($self) for values %cf::MAP;	2308	$_->clear_links_to ($self) for values %cf::MAP;
		2309	$self->clear;
1561		2310
1562	$self->unlink_save;	2311	$self->unlink_save;
1563	$self->destroy;	2312	$self->destroy;
1564	}	2313	}
1565		2314
1566	my $nuke_counter = "aaaa";	2315	my $nuke_counter = "aaaa";
1567		2316
1568	sub nuke {	2317	sub nuke {
1569	my ($self) = @_;	2318	my ($self) = @_;
1570		2319
		2320	{
		2321	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2322
		2323	delete $cf::MAP{$self->path};
		2324
		2325	$self->unlink_save;
		2326
		2327	bless $self, "cf::map";
		2328	delete $self->{deny_reset};
1571	$self->{deny_save} = 1;	2329	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	2330	$self->reset_timeout (1);
1573	$self->rename ("{nuke}/" . ($nuke_counter++));	2331	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2332
		2333	$cf::MAP{$self->path} = $self;
		2334	}
		2335
1574	$self->reset; # polite request, might not happen	2336	$self->reset; # polite request, might not happen
1575	}	2337	}
1576		2338
1577	sub customise_for {	2339	=item $maps = cf::map::tmp_maps
1578	my ($map, $ob) = @_;
1579		2340
1580	if ($map->per_player) {	2341	Returns an arrayref with all map paths of currently instantiated and saved
1581	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2342	maps. May block.
		2343
		2344	=cut
		2345
		2346	sub tmp_maps() {
1582	}	2347	[
		2348	map {
		2349	utf8::decode $_;
		2350	/\.map$/
		2351	? normalise $_
		2352	: ()
		2353	} @{ aio_readdir $TMPDIR or [] }
		2354	]
		2355	}
1583		2356
1584	$map	2357	=item $maps = cf::map::random_maps
		2358
		2359	Returns an arrayref with all map paths of currently instantiated and saved
		2360	random maps. May block.
		2361
		2362	=cut
		2363
		2364	sub random_maps() {
		2365	[
		2366	map {
		2367	utf8::decode $_;
		2368	/\.map$/
		2369	? normalise "?random/$_"
		2370	: ()
		2371	} @{ aio_readdir $RANDOMDIR or [] }
		2372	]
1585	}	2373	}
1586		2374
1587	=item cf::map::unique_maps	2375	=item cf::map::unique_maps
1588		2376
1589	Returns an arrayref of cf::path's of all shared maps that have	2377	Returns an arrayref of paths of all shared maps that have
1590	instantiated unique items. May block.	2378	instantiated unique items. May block.
1591		2379
1592	=cut	2380	=cut
1593		2381
1594	sub unique_maps() {	2382	sub unique_maps() {
1595	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2383	[
1596	or return;	2384	map {
1597
1598	my @paths;
1599
1600	for (@$files) {
1601	utf8::decode $_;	2385	utf8::decode $_;
1602	next if /\.pst$/;	2386	s/\.map$//; # TODO future compatibility hack
1603	next unless /^$PATH_SEP/o;	2387	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1604		2388	? ()
1605	push @paths, new cf::path $_;	2389	: normalise $_
		2390	} @{ aio_readdir $UNIQUEDIR or [] }
1606	}	2391	]
1607
1608	\@paths
1609	}	2392	}
1610
1611	package cf;
1612		2393
1613	=back	2394	=back
1614		2395
1615	=head3 cf::object	2396	=head3 cf::object
1616		2397
…		…
1620		2401
1621	=over 4	2402	=over 4
1622		2403
1623	=item $ob->inv_recursive	2404	=item $ob->inv_recursive
1624		2405
1625	Returns the inventory of the object _and_ their inventories, recursively.	2406	Returns the inventory of the object I<and> their inventories, recursively,
		2407	but I<not> the object itself.
1626		2408
1627	=cut	2409	=cut
1628		2410
1629	sub inv_recursive_;	2411	sub inv_recursive_;
1630	sub inv_recursive_ {	2412	sub inv_recursive_ {
…		…
1633		2415
1634	sub inv_recursive {	2416	sub inv_recursive {
1635	inv_recursive_ inv $_[0]	2417	inv_recursive_ inv $_[0]
1636	}	2418	}
1637		2419
		2420	=item $ref = $ob->ref
		2421
		2422	Creates and returns a persistent reference to an object that can be stored as a string.
		2423
		2424	=item $ob = cf::object::deref ($refstring)
		2425
		2426	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2427	even if the object actually exists. May block.
		2428
		2429	=cut
		2430
		2431	sub deref {
		2432	my ($ref) = @_;
		2433
		2434	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2435	my ($uuid, $name) = ($1, $2);
		2436	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2437	or return;
		2438	$pl->ob->uuid eq $uuid
		2439	or return;
		2440
		2441	$pl->ob
		2442	} else {
		2443	warn "$ref: cannot resolve object reference\n";
		2444	undef
		2445	}
		2446	}
		2447
1638	package cf;	2448	package cf;
1639		2449
1640	=back	2450	=back
1641		2451
1642	=head3 cf::object::player	2452	=head3 cf::object::player
…		…
1648	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2458	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1649	can be C<undef>. Does the right thing when the player is currently in a	2459	can be C<undef>. Does the right thing when the player is currently in a
1650	dialogue with the given NPC character.	2460	dialogue with the given NPC character.
1651		2461
1652	=cut	2462	=cut
		2463
		2464	our $SAY_CHANNEL = {
		2465	id => "say",
		2466	title => "Map",
		2467	reply => "say ",
		2468	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2469	};
		2470
		2471	our $CHAT_CHANNEL = {
		2472	id => "chat",
		2473	title => "Chat",
		2474	reply => "chat ",
		2475	tooltip => "Player chat and shouts, global to the server.",
		2476	};
1653		2477
1654	# rough implementation of a future "reply" method that works	2478	# rough implementation of a future "reply" method that works
1655	# with dialog boxes.	2479	# with dialog boxes.
1656	#TODO: the first argument must go, split into a $npc->reply_to ( method	2480	#TODO: the first argument must go, split into a $npc->reply_to ( method
1657	sub cf::object::player::reply($$$;$) {	2481	sub cf::object::player::reply($$$;$) {
…		…
1659		2483
1660	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2484	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1661		2485
1662	if ($self->{record_replies}) {	2486	if ($self->{record_replies}) {
1663	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2487	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2488
1664	} else {	2489	} else {
		2490	my $pl = $self->contr;
		2491
		2492	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2493	my $dialog = $pl->{npc_dialog};
		2494	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2495
		2496	} else {
1665	$msg = $npc->name . " says: $msg" if $npc;	2497	$msg = $npc->name . " says: $msg" if $npc;
1666	$self->message ($msg, $flags);	2498	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2499	}
1667	}	2500	}
		2501	}
		2502
		2503	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	=cut
		2506
		2507	sub cf::object::send_msg {
		2508	my $pl = shift->contr
		2509	or return;
		2510	$pl->send_msg (@_);
1668	}	2511	}
1669		2512
1670	=item $player_object->may ("access")	2513	=item $player_object->may ("access")
1671		2514
1672	Returns wether the given player is authorized to access resource "access"	2515	Returns wether the given player is authorized to access resource "access"
…		…
1685		2528
1686	=item $player_object->enter_link	2529	=item $player_object->enter_link
1687		2530
1688	Freezes the player and moves him/her to a special map (C<{link}>).	2531	Freezes the player and moves him/her to a special map (C<{link}>).
1689		2532
1690	The player should be reaosnably safe there for short amounts of time. You	2533	The player should be reasonably safe there for short amounts of time. You
1691	I<MUST> call C<leave_link> as soon as possible, though.	2534	I<MUST> call C<leave_link> as soon as possible, though.
1692		2535
		2536	Will never block.
		2537
1693	=item $player_object->leave_link ($map, $x, $y)	2538	=item $player_object->leave_link ($map, $x, $y)
1694		2539
1695	Moves the player out of the specila link map onto the given map. If the	2540	Moves the player out of the special C<{link}> map onto the specified
1696	map is not valid (or omitted), the player will be moved back to the	2541	map. If the map is not valid (or omitted), the player will be moved back
1697	location he/she was before the call to C<enter_link>, or, if that fails,	2542	to the location he/she was before the call to C<enter_link>, or, if that
1698	to the emergency map position.	2543	fails, to the emergency map position.
1699		2544
1700	Might block.	2545	Might block.
1701		2546
1702	=cut	2547	=cut
		2548
		2549	sub link_map {
		2550	unless ($LINK_MAP) {
		2551	$LINK_MAP = cf::map::find "{link}"
		2552	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2553	$LINK_MAP->load;
		2554	}
		2555
		2556	$LINK_MAP
		2557	}
1703		2558
1704	sub cf::object::player::enter_link {	2559	sub cf::object::player::enter_link {
1705	my ($self) = @_;	2560	my ($self) = @_;
1706		2561
1707	$self->deactivate_recursive;	2562	$self->deactivate_recursive;
1708		2563
1709	return if $self->map == $LINK_MAP;	2564	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		2565
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2566	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	2567	if $self->map && $self->map->{path} ne "{link}";
1713		2568
1714	$self->enter_map ($LINK_MAP, 20, 20);	2569	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1715	}	2570	}
1716		2571
1717	sub cf::object::player::leave_link {	2572	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	2573	my ($self, $map, $x, $y) = @_;
		2574
		2575	return unless $self->contr->active;
1719		2576
1720	my $link_pos = delete $self->{_link_pos};	2577	my $link_pos = delete $self->{_link_pos};
1721		2578
1722	unless ($map) {	2579	unless ($map) {
1723	# restore original map position	2580	# restore original map position
…		…
1737	# use -1 or undef as default coordinates, not 0, 0	2594	# use -1 or undef as default coordinates, not 0, 0
1738	($x, $y) = ($map->enter_x, $map->enter_y)	2595	($x, $y) = ($map->enter_x, $map->enter_y)
1739	if $x <=0 && $y <= 0;	2596	if $x <=0 && $y <= 0;
1740		2597
1741	$map->load;	2598	$map->load;
1742	$map->load_diag;	2599	$map->load_neighbours;
1743		2600
1744	return unless $self->contr->active;	2601	return unless $self->contr->active;
1745	$self->activate_recursive;	2602	$self->activate_recursive;
		2603
		2604	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1746	$self->enter_map ($map, $x, $y);	2605	$self->enter_map ($map, $x, $y);
1747	}	2606	}
1748		2607
1749	cf::player->attach (	2608	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1750	on_logout => sub {
1751	my ($pl) = @_;
1752		2609
1753	# abort map switching before logout	2610	Moves the player to the given map-path and coordinates by first freezing
1754	if ($pl->ob->{_link_pos}) {	2611	her, loading and preparing them map, calling the provided $check callback
1755	cf::sync_job {	2612	that has to return the map if sucecssful, and then unfreezes the player on
1756	$pl->ob->leave_link	2613	the new (success) or old (failed) map position. In either case, $done will
1757	};	2614	be called at the end of this process.
1758	}
1759	},
1760	on_login => sub {
1761	my ($pl) = @_;
1762		2615
1763	# try to abort aborted map switching on player login :)
1764	# should happen only on crashes
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780
1781	=item $player_object->goto ($path, $x, $y)
1782
1783	=cut	2616	=cut
		2617
		2618	our $GOTOGEN;
1784		2619
1785	sub cf::object::player::goto {	2620	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2621	my ($self, $path, $x, $y, $check, $done) = @_;
1787		2622
1788	$path = new cf::path $path;	2623	# do generation counting so two concurrent goto's will be executed in-order
		2624	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1789		2625
1790	$self->enter_link;	2626	$self->enter_link;
1791		2627
1792	(async {	2628	(async {
1793	my $map = cf::map::find $path->as_string;	2629	$Coro::current->{desc} = "player::goto $path $x $y";
		2630
		2631	# *tag paths override both path and x|y
		2632	if ($path =~ /^\*(.*)$/) {
		2633	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2634	my $ob = $obs[rand @obs];
		2635
		2636	# see if we actually can go there
		2637	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2638	$ob = $obs[rand @obs];
		2639	} else {
		2640	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2641	}
		2642	# else put us there anyways for now #d#
		2643
		2644	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2645	} else {
		2646	($path, $x, $y) = (undef, undef, undef);
		2647	}
		2648	}
		2649
		2650	my $map = eval {
		2651	my $map = defined $path ? cf::map::find $path : undef;
		2652
		2653	if ($map) {
1794	$map = $map->customise_for ($self) if $map;	2654	$map = $map->customise_for ($self);
1795		2655	$map = $check->($map) if $check && $map;
1796	# warn "entering ", $map->path, " at ($x, $y)\n"	2656	} else {
1797	# if $map;
1798
1799	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2657	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2658	}
1800		2659
		2660	$map
		2661	};
		2662
		2663	if ($@) {
		2664	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2665	LOG llevError | logBacktrace, Carp::longmess $@;
		2666	}
		2667
		2668	if ($gen == $self->{_goto_generation}) {
		2669	delete $self->{_goto_generation};
1801	$self->leave_link ($map, $x, $y);	2670	$self->leave_link ($map, $x, $y);
		2671	}
		2672
		2673	$done->() if $done;
1802	})->prio (1);	2674	})->prio (1);
1803	}	2675	}
1804		2676
1805	=item $player_object->enter_exit ($exit_object)	2677	=item $player_object->enter_exit ($exit_object)
1806		2678
…		…
1808		2680
1809	sub parse_random_map_params {	2681	sub parse_random_map_params {
1810	my ($spec) = @_;	2682	my ($spec) = @_;
1811		2683
1812	my $rmp = { # defaults	2684	my $rmp = { # defaults
1813	xsize => 10,	2685	xsize => (cf::rndm 15, 40),
1814	ysize => 10,	2686	ysize => (cf::rndm 15, 40),
		2687	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2688	#layout => string,
1815	};	2689	};
1816		2690
1817	for (split /\n/, $spec) {	2691	for (split /\n/, $spec) {
1818	my ($k, $v) = split /\s+/, $_, 2;	2692	my ($k, $v) = split /\s+/, $_, 2;
1819		2693
…		…
1823	$rmp	2697	$rmp
1824	}	2698	}
1825		2699
1826	sub prepare_random_map {	2700	sub prepare_random_map {
1827	my ($exit) = @_;	2701	my ($exit) = @_;
		2702
		2703	my $guard = cf::lock_acquire "exit_prepare:$exit";
1828		2704
1829	# all this does is basically replace the /! path by	2705	# all this does is basically replace the /! path by
1830	# a new random map path (?random/...) with a seed	2706	# a new random map path (?random/...) with a seed
1831	# that depends on the exit object	2707	# that depends on the exit object
1832		2708
1833	my $rmp = parse_random_map_params $exit->msg;	2709	my $rmp = parse_random_map_params $exit->msg;
1834		2710
1835	if ($exit->map) {	2711	if ($exit->map) {
1836	$rmp->{region} = $exit->map->region_name;	2712	$rmp->{region} = $exit->region->name;
1837	$rmp->{origin_map} = $exit->map->path;	2713	$rmp->{origin_map} = $exit->map->path;
1838	$rmp->{origin_x} = $exit->x;	2714	$rmp->{origin_x} = $exit->x;
1839	$rmp->{origin_y} = $exit->y;	2715	$rmp->{origin_y} = $exit->y;
1840	}	2716	}
1841		2717
1842	$rmp->{random_seed} ||= $exit->random_seed;	2718	$rmp->{random_seed} ||= $exit->random_seed;
1843		2719
1844	my $data = cf::to_json $rmp;	2720	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1845	my $md5 = Digest::MD5::md5_hex $data;	2721	my $md5 = Digest::MD5::md5_hex $data;
		2722	my $meta = "$RANDOMDIR/$md5.meta";
1846		2723
1847	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2724	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1848	aio_write $fh, 0, (length $data), $data, 0;	2725	aio_write $fh, 0, (length $data), $data, 0;
		2726	undef $fh;
		2727	aio_rename "$meta~", $meta;
1849		2728
1850	$exit->slaying ("?random/$md5");	2729	$exit->slaying ("?random/$md5");
1851	$exit->msg (undef);	2730	$exit->msg (undef);
1852	}	2731	}
1853	}	2732	}
…		…
1855	sub cf::object::player::enter_exit {	2734	sub cf::object::player::enter_exit {
1856	my ($self, $exit) = @_;	2735	my ($self, $exit) = @_;
1857		2736
1858	return unless $self->type == cf::PLAYER;	2737	return unless $self->type == cf::PLAYER;
1859		2738
		2739	if ($exit->slaying eq "/!") {
		2740	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2741	# the problem is that $exit might not survive long enough
		2742	# so it needs to be done right now, right here
		2743	cf::sync_job { prepare_random_map $exit };
		2744	}
		2745
		2746	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2747	my $hp = $exit->stats->hp;
		2748	my $sp = $exit->stats->sp;
		2749
1860	$self->enter_link;	2750	$self->enter_link;
1861		2751
		2752	# if exit is damned, update players death & WoR home-position
		2753	$self->contr->savebed ($slaying, $hp, $sp)
		2754	if $exit->flag (FLAG_DAMNED);
		2755
1862	(async {	2756	(async {
		2757	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2758
1863	$self->deactivate_recursive; # just to be sure	2759	$self->deactivate_recursive; # just to be sure
1864	unless (eval {	2760	unless (eval {
1865	prepare_random_map $exit	2761	$self->goto ($slaying, $hp, $sp);
1866	if $exit->slaying eq "/!";
1867
1868	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1869	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1870		2762
1871	1;	2763	1;
1872	}) {	2764	}) {
1873	$self->message ("Something went wrong deep within the crossfire server. "	2765	$self->message ("Something went wrong deep within the crossfire server. "
1874	. "I'll try to bring you back to the map you were before. "	2766	. "I'll try to bring you back to the map you were before. "
1875	. "Please report this to the dungeon master!",	2767	. "Please report this to the dungeon master!",
1876	cf::NDI_UNIQUE | cf::NDI_RED);	2768	cf::NDI_UNIQUE | cf::NDI_RED);
1877		2769
1878	warn "ERROR in enter_exit: $@";	2770	warn "ERROR in enter_exit: $@";
1879	$self->leave_link;	2771	$self->leave_link;
1880	}	2772	}
1881	})->prio (1);	2773	})->prio (1);
…		…
1894		2786
1895	sub cf::client::send_drawinfo {	2787	sub cf::client::send_drawinfo {
1896	my ($self, $text, $flags) = @_;	2788	my ($self, $text, $flags) = @_;
1897		2789
1898	utf8::encode $text;	2790	utf8::encode $text;
1899	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2791	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1900	}	2792	}
1901		2793
		2794	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2795
		2796	Send a drawinfo or msg packet to the client, formatting the msg for the
		2797	client if neccessary. C<$type> should be a string identifying the type of
		2798	the message, with C<log> being the default. If C<$color> is negative, suppress
		2799	the message unless the client supports the msg packet.
		2800
		2801	=cut
		2802
		2803	# non-persistent channels (usually the info channel)
		2804	our %CHANNEL = (
		2805	"c/identify" => {
		2806	id => "infobox",
		2807	title => "Identify",
		2808	reply => undef,
		2809	tooltip => "Items recently identified",
		2810	},
		2811	"c/examine" => {
		2812	id => "infobox",
		2813	title => "Examine",
		2814	reply => undef,
		2815	tooltip => "Signs and other items you examined",
		2816	},
		2817	"c/book" => {
		2818	id => "infobox",
		2819	title => "Book",
		2820	reply => undef,
		2821	tooltip => "The contents of a note or book",
		2822	},
		2823	"c/lookat" => {
		2824	id => "infobox",
		2825	title => "Look",
		2826	reply => undef,
		2827	tooltip => "What you saw there",
		2828	},
		2829	"c/who" => {
		2830	id => "infobox",
		2831	title => "Players",
		2832	reply => undef,
		2833	tooltip => "Shows players who are currently online",
		2834	},
		2835	"c/body" => {
		2836	id => "infobox",
		2837	title => "Body Parts",
		2838	reply => undef,
		2839	tooltip => "Shows which body parts you posess and are available",
		2840	},
		2841	"c/uptime" => {
		2842	id => "infobox",
		2843	title => "Uptime",
		2844	reply => undef,
		2845	tooltip => "How long the server has been running since last restart",
		2846	},
		2847	"c/mapinfo" => {
		2848	id => "infobox",
		2849	title => "Map Info",
		2850	reply => undef,
		2851	tooltip => "Information related to the maps",
		2852	},
		2853	"c/party" => {
		2854	id => "party",
		2855	title => "Party",
		2856	reply => "gsay ",
		2857	tooltip => "Messages and chat related to your party",
		2858	},
		2859	);
		2860
		2861	sub cf::client::send_msg {
		2862	my ($self, $channel, $msg, $color, @extra) = @_;
		2863
		2864	$msg = $self->pl->expand_cfpod ($msg);
		2865
		2866	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2867
		2868	# check predefined channels, for the benefit of C
		2869	if ($CHANNEL{$channel}) {
		2870	$channel = $CHANNEL{$channel};
		2871
		2872	$self->ext_msg (channel_info => $channel)
		2873	if $self->can_msg;
		2874
		2875	$channel = $channel->{id};
		2876
		2877	} elsif (ref $channel) {
		2878	# send meta info to client, if not yet sent
		2879	unless (exists $self->{channel}{$channel->{id}}) {
		2880	$self->{channel}{$channel->{id}} = $channel;
		2881	$self->ext_msg (channel_info => $channel)
		2882	if $self->can_msg;
		2883	}
		2884
		2885	$channel = $channel->{id};
		2886	}
		2887
		2888	return unless @extra || length $msg;
		2889
		2890	if ($self->can_msg) {
		2891	# default colour, mask it out
		2892	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2893	if $color & cf::NDI_DEF;
		2894
		2895	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2896	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2897	} else {
		2898	if ($color >= 0) {
		2899	# replace some tags by gcfclient-compatible ones
		2900	for ($msg) {
		2901	1 while
		2902	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2903	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2904	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2905	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2906	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2907	}
		2908
		2909	$color &= cf::NDI_COLOR_MASK;
		2910
		2911	utf8::encode $msg;
		2912
		2913	if (0 && $msg =~ /\[/) {
		2914	# COMMAND/INFO
		2915	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2916	} else {
		2917	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2918	$self->send_packet ("drawinfo $color $msg")
		2919	}
		2920	}
		2921	}
		2922	}
		2923
		2924	=item $client->ext_msg ($type, @msg)
		2925
		2926	Sends an ext event to the client.
		2927
		2928	=cut
		2929
		2930	sub cf::client::ext_msg($$@) {
		2931	my ($self, $type, @msg) = @_;
		2932
		2933	if ($self->extcmd == 2) {
		2934	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2935	} elsif ($self->extcmd == 1) { # TODO: remove
		2936	push @msg, msgtype => "event_$type";
		2937	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2938	}
		2939	}
		2940
		2941	=item $client->ext_reply ($msgid, @msg)
		2942
		2943	Sends an ext reply to the client.
		2944
		2945	=cut
		2946
		2947	sub cf::client::ext_reply($$@) {
		2948	my ($self, $id, @msg) = @_;
		2949
		2950	if ($self->extcmd == 2) {
		2951	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2952	} elsif ($self->extcmd == 1) {
		2953	#TODO: version 1, remove
		2954	unshift @msg, msgtype => "reply", msgid => $id;
		2955	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2956	}
		2957	}
1902		2958
1903	=item $success = $client->query ($flags, "text", \&cb)	2959	=item $success = $client->query ($flags, "text", \&cb)
1904		2960
1905	Queues a query to the client, calling the given callback with	2961	Queues a query to the client, calling the given callback with
1906	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2962	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1907	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2963	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1908		2964
1909	Queries can fail, so check the return code. Or don't, as queries will become	2965	Queries can fail, so check the return code. Or don't, as queries will
1910	reliable at some point in the future.	2966	become reliable at some point in the future.
1911		2967
1912	=cut	2968	=cut
1913		2969
1914	sub cf::client::query {	2970	sub cf::client::query {
1915	my ($self, $flags, $text, $cb) = @_;	2971	my ($self, $flags, $text, $cb) = @_;
…		…
1923	utf8::encode $text;	2979	utf8::encode $text;
1924	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2980	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1925		2981
1926	$self->send_packet ($self->{query_queue}[0][0])	2982	$self->send_packet ($self->{query_queue}[0][0])
1927	if @{ $self->{query_queue} } == 1;	2983	if @{ $self->{query_queue} } == 1;
		2984
		2985	1
1928	}	2986	}
1929		2987
1930	cf::client->attach (	2988	cf::client->attach (
		2989	on_connect => sub {
		2990	my ($ns) = @_;
		2991
		2992	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2993	},
1931	on_reply => sub {	2994	on_reply => sub {
1932	my ($ns, $msg) = @_;	2995	my ($ns, $msg) = @_;
1933		2996
1934	# this weird shuffling is so that direct followup queries	2997	# this weird shuffling is so that direct followup queries
1935	# get handled first	2998	# get handled first
1936	my $queue = delete $ns->{query_queue}	2999	my $queue = delete $ns->{query_queue}
1937	or return; # be conservative, not sure how that can happen, but we saw a crash here	3000	or return; # be conservative, not sure how that can happen, but we saw a crash here
1938		3001
1939	(shift @$queue)->[1]->($msg);	3002	(shift @$queue)->[1]->($msg);
		3003	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1940		3004
1941	push @{ $ns->{query_queue} }, @$queue;	3005	push @{ $ns->{query_queue} }, @$queue;
1942		3006
1943	if (@{ $ns->{query_queue} } == @$queue) {	3007	if (@{ $ns->{query_queue} } == @$queue) {
1944	if (@$queue) {	3008	if (@$queue) {
…		…
1946	} else {	3010	} else {
1947	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3011	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1948	}	3012	}
1949	}	3013	}
1950	},	3014	},
		3015	on_exticmd => sub {
		3016	my ($ns, $buf) = @_;
		3017
		3018	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3019
		3020	if (ref $msg) {
		3021	my ($type, $reply, @payload) =
		3022	"ARRAY" eq ref $msg
		3023	? @$msg
		3024	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3025
		3026	my @reply;
		3027
		3028	if (my $cb = $EXTICMD{$type}) {
		3029	@reply = $cb->($ns, @payload);
		3030	}
		3031
		3032	$ns->ext_reply ($reply, @reply)
		3033	if $reply;
		3034
		3035	} else {
		3036	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3037	}
		3038
		3039	cf::override;
		3040	},
1951	);	3041	);
1952		3042
1953	=item $client->async (\&cb)	3043	=item $client->async (\&cb)
1954		3044
1955	Create a new coroutine, running the specified callback. The coroutine will	3045	Create a new coroutine, running the specified callback. The coroutine will
…		…
1996	our $safe = new Safe "safe";	3086	our $safe = new Safe "safe";
1997	our $safe_hole = new Safe::Hole;	3087	our $safe_hole = new Safe::Hole;
1998		3088
1999	$SIG{FPE} = 'IGNORE';	3089	$SIG{FPE} = 'IGNORE';
2000		3090
2001	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3091	$safe->permit_only (Opcode::opset qw(
		3092	:base_core :base_mem :base_orig :base_math
		3093	grepstart grepwhile mapstart mapwhile
		3094	sort time
		3095	));
2002		3096
2003	# here we export the classes and methods available to script code	3097	# here we export the classes and methods available to script code
2004		3098
2005	=pod	3099	=pod
2006		3100
2007	The following fucntions and emthods are available within a safe environment:	3101	The following functions and methods are available within a safe environment:
2008		3102
2009	cf::object contr pay_amount pay_player map	3103	cf::object
		3104	contr pay_amount pay_player map x y force_find force_add destroy
		3105	insert remove name archname title slaying race decrease split
		3106
2010	cf::object::player player	3107	cf::object::player
2011	cf::player peaceful	3108	player
2012	cf::map trigger	3109
		3110	cf::player
		3111	peaceful
		3112
		3113	cf::map
		3114	trigger
2013		3115
2014	=cut	3116	=cut
2015		3117
2016	for (	3118	for (
2017	["cf::object" => qw(contr pay_amount pay_player map)],	3119	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3120	insert remove inv name archname title slaying race
		3121	decrease split destroy)],
2018	["cf::object::player" => qw(player)],	3122	["cf::object::player" => qw(player)],
2019	["cf::player" => qw(peaceful)],	3123	["cf::player" => qw(peaceful)],
2020	["cf::map" => qw(trigger)],	3124	["cf::map" => qw(trigger)],
2021	) {	3125	) {
2022	no strict 'refs';	3126	no strict 'refs';
…		…
2093	=back	3197	=back
2094		3198
2095	=cut	3199	=cut
2096		3200
2097	#############################################################################	3201	#############################################################################
		3202	# the server's init and main functions
2098		3203
2099	=head2 EXTENSION DATABASE SUPPORT	3204	sub load_facedata($) {
		3205	my ($path) = @_;
2100		3206
2101	Crossfire maintains a very simple database for extension use. It can	3207	# HACK to clear player env face cache, we need some signal framework
2102	currently store anything that can be serialised using Storable, which	3208	# for this (global event?)
2103	excludes objects.	3209	%ext::player_env::MUSIC_FACE_CACHE = ();
2104		3210
2105	The parameter C<$family> should best start with the name of the extension	3211	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2106	using it, it should be unique.
2107		3212
2108	=over 4	3213	warn "loading facedata from $path\n";
2109		3214
2110	=item $hashref = cf::db_get $family	3215	my $facedata;
		3216	0 < aio_load $path, $facedata
		3217	or die "$path: $!";
2111		3218
2112	Return a hashref for use by the extension C<$family>, which can be	3219	$facedata = Coro::Storable::thaw $facedata;
2113	modified. After modifications, you have to call C<cf::db_dirty> or
2114	C<cf::db_sync>.
2115		3220
2116	=item $value = cf::db_get $family => $key	3221	$facedata->{version} == 2
		3222	or cf::cleanup "$path: version mismatch, cannot proceed.";
2117		3223
2118	Returns a single value from the database	3224	# patch in the exptable
2119		3225	$facedata->{resource}{"res/exp_table"} = {
2120	=item cf::db_put $family => $hashref	3226	type => FT_RSRC,
2121		3227	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2122	Stores the given family hashref into the database. Updates are delayed, if
2123	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2124
2125	=item cf::db_put $family => $key => $value
2126
2127	Stores the given C<$value> in the family hash. Updates are delayed, if you
2128	want the data to be synced to disk immediately, use C<cf::db_sync>.
2129
2130	=item cf::db_dirty
2131
2132	Marks the database as dirty, to be updated at a later time.
2133
2134	=item cf::db_sync
2135
2136	Immediately write the database to disk I<if it is dirty>.
2137
2138	=cut
2139
2140	our $DB;
2141
2142	{
2143	my $path = cf::localdir . "/database.pst";
2144
2145	sub db_load() {
2146	$DB = stat $path ? Storable::retrieve $path : { };
2147	}
2148
2149	my $pid;
2150
2151	sub db_save() {
2152	waitpid $pid, 0 if $pid;
2153	if (0 == ($pid = fork)) {
2154	$DB->{_meta}{version} = 1;
2155	Storable::nstore $DB, "$path~";
2156	rename "$path~", $path;
2157	cf::_exit 0 if defined $pid;
2158	}
2159	}
2160
2161	my $dirty;
2162
2163	sub db_sync() {
2164	db_save if $dirty;
2165	undef $dirty;
2166	}
2167
2168	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2169	db_sync;
2170	});	3228	};
		3229	cf::cede_to_tick;
2171		3230
2172	sub db_dirty() {
2173	$dirty = 1;
2174	$idle->start;
2175	}	3231	{
		3232	my $faces = $facedata->{faceinfo};
2176		3233
2177	sub db_get($;$) {	3234	while (my ($face, $info) = each %$faces) {
2178	@_ >= 2	3235	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2179	? $DB->{$_[0]}{$_[1]}
2180	: ($DB->{$_[0]} ||= { })
2181	}
2182		3236
2183	sub db_put($$;$) {	3237	cf::face::set_visibility $idx, $info->{visibility};
2184	if (@_ >= 3) {	3238	cf::face::set_magicmap $idx, $info->{magicmap};
2185	$DB->{$_[0]}{$_[1]} = $_[2];	3239	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2186	} else {	3240	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2187	$DB->{$_[0]} = $_[1];
2188	}
2189	db_dirty;
2190	}
2191		3241
2192	cf::global->attach (	3242	cf::cede_to_tick;
2193	prio => 10000,
2194	on_cleanup => sub {
2195	db_sync;
2196	},	3243	}
2197	);
2198	}
2199		3244
2200	#############################################################################	3245	while (my ($face, $info) = each %$faces) {
2201	# the server's main()	3246	next unless $info->{smooth};
2202		3247
2203	sub cfg_load {	3248	my $idx = cf::face::find $face
		3249	or next;
		3250
		3251	if (my $smooth = cf::face::find $info->{smooth}) {
		3252	cf::face::set_smooth $idx, $smooth;
		3253	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3254	} else {
		3255	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3256	}
		3257
		3258	cf::cede_to_tick;
		3259	}
		3260	}
		3261
		3262	{
		3263	my $anims = $facedata->{animinfo};
		3264
		3265	while (my ($anim, $info) = each %$anims) {
		3266	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3267	cf::cede_to_tick;
		3268	}
		3269
		3270	cf::anim::invalidate_all; # d'oh
		3271	}
		3272
		3273	{
		3274	# TODO: for gcfclient pleasure, we should give resources
		3275	# that gcfclient doesn't grok a >10000 face index.
		3276	my $res = $facedata->{resource};
		3277
		3278	while (my ($name, $info) = each %$res) {
		3279	if (defined $info->{type}) {
		3280	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3281	my $data;
		3282
		3283	if ($info->{type} & 1) {
		3284	# prepend meta info
		3285
		3286	my $meta = $enc->encode ({
		3287	name => $name,
		3288	%{ $info->{meta} || {} },
		3289	});
		3290
		3291	$data = pack "(w/a*)*", $meta, $info->{data};
		3292	} else {
		3293	$data = $info->{data};
		3294	}
		3295
		3296	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3297	cf::face::set_type $idx, $info->{type};
		3298	} else {
		3299	$RESOURCE{$name} = $info;
		3300	}
		3301
		3302	cf::cede_to_tick;
		3303	}
		3304	}
		3305
		3306	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3307
		3308	1
		3309	}
		3310
		3311	cf::global->attach (on_resource_update => sub {
		3312	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3313	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3314
		3315	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3316	my $sound = $soundconf->{compat}[$_]
		3317	or next;
		3318
		3319	my $face = cf::face::find "sound/$sound->[1]";
		3320	cf::sound::set $sound->[0] => $face;
		3321	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3322	}
		3323
		3324	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3325	my $face = cf::face::find "sound/$v";
		3326	cf::sound::set $k => $face;
		3327	}
		3328	}
		3329	});
		3330
		3331	register_exticmd fx_want => sub {
		3332	my ($ns, $want) = @_;
		3333
		3334	while (my ($k, $v) = each %$want) {
		3335	$ns->fx_want ($k, $v);
		3336	}
		3337	};
		3338
		3339	sub load_resource_file($) {
		3340	my $guard = lock_acquire "load_resource_file";
		3341
		3342	my $status = load_resource_file_ $_[0];
		3343	get_slot 0.1, 100;
		3344	cf::arch::commit_load;
		3345
		3346	$status
		3347	}
		3348
		3349	sub reload_regions {
		3350	# HACK to clear player env face cache, we need some signal framework
		3351	# for this (global event?)
		3352	%ext::player_env::MUSIC_FACE_CACHE = ();
		3353
		3354	load_resource_file "$MAPDIR/regions"
		3355	or die "unable to load regions file\n";
		3356
		3357	for (cf::region::list) {
		3358	$_->{match} = qr/$_->{match}/
		3359	if exists $_->{match};
		3360	}
		3361	}
		3362
		3363	sub reload_facedata {
		3364	load_facedata "$DATADIR/facedata"
		3365	or die "unable to load facedata\n";
		3366	}
		3367
		3368	sub reload_archetypes {
		3369	load_resource_file "$DATADIR/archetypes"
		3370	or die "unable to load archetypes\n";
		3371	}
		3372
		3373	sub reload_treasures {
		3374	load_resource_file "$DATADIR/treasures"
		3375	or die "unable to load treasurelists\n";
		3376	}
		3377
		3378	sub reload_resources {
		3379	warn "reloading resource files...\n";
		3380
		3381	reload_facedata;
		3382	reload_archetypes;
		3383	reload_regions;
		3384	reload_treasures;
		3385
		3386	warn "finished reloading resource files\n";
		3387	}
		3388
		3389	sub init {
		3390	my $guard = freeze_mainloop;
		3391
		3392	reload_resources;
		3393	}
		3394
		3395	sub reload_config {
2204	open my $fh, "<:utf8", cf::confdir . "/config"	3396	open my $fh, "<:utf8", "$CONFDIR/config"
2205	or return;	3397	or return;
2206		3398
2207	local $/;	3399	local $/;
2208	*CFG = YAML::Syck::Load <$fh>;	3400	*CFG = YAML::Load <$fh>;
2209		3401
2210	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3402	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2211		3403
2212	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3404	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2213	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3405	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2223		3415
2224	sub main {	3416	sub main {
2225	# we must not ever block the main coroutine	3417	# we must not ever block the main coroutine
2226	local $Coro::idle = sub {	3418	local $Coro::idle = sub {
2227	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3419	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2228	async { Event::one_event };	3420	(async {
		3421	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3422	EV::loop EV::LOOP_ONESHOT;
		3423	})->prio (Coro::PRIO_MAX);
2229	};	3424	};
2230		3425
2231	cfg_load;	3426	{
2232	db_load;	3427	my $guard = freeze_mainloop;
		3428	reload_config;
		3429	db_init;
2233	load_extensions;	3430	load_extensions;
		3431
		3432	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3433	evthread_start IO::AIO::poll_fileno;
		3434	}
		3435
2234	Event::loop;	3436	EV::loop;
2235	}	3437	}
2236		3438
2237	#############################################################################	3439	#############################################################################
2238	# initialisation and cleanup	3440	# initialisation and cleanup
2239		3441
2240	# install some emergency cleanup handlers	3442	# install some emergency cleanup handlers
2241	BEGIN {	3443	BEGIN {
		3444	our %SIGWATCHER = ();
2242	for my $signal (qw(INT HUP TERM)) {	3445	for my $signal (qw(INT HUP TERM)) {
2243	Event->signal (	3446	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2244	data => WF_AUTOCANCEL,
2245	signal => $signal,
2246	cb => sub {
2247	cf::cleanup "SIG$signal";	3447	cf::cleanup "SIG$signal";
2248	},
2249	);	3448	};
		3449	}
		3450	}
		3451
		3452	sub write_runtime_sync {
		3453	my $runtime = "$LOCALDIR/runtime";
		3454
		3455	# first touch the runtime file to show we are still running:
		3456	# the fsync below can take a very very long time.
		3457
		3458	IO::AIO::aio_utime $runtime, undef, undef;
		3459
		3460	my $guard = cf::lock_acquire "write_runtime";
		3461
		3462	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3463	or return;
		3464
		3465	my $value = $cf::RUNTIME + 90 + 10;
		3466	# 10 is the runtime save interval, for a monotonic clock
		3467	# 60 allows for the watchdog to kill the server.
		3468
		3469	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3470	and return;
		3471
		3472	# always fsync - this file is important
		3473	aio_fsync $fh
		3474	and return;
		3475
		3476	# touch it again to show we are up-to-date
		3477	aio_utime $fh, undef, undef;
		3478
		3479	close $fh
		3480	or return;
		3481
		3482	aio_rename "$runtime~", $runtime
		3483	and return;
		3484
		3485	warn "runtime file written.\n";
		3486
2250	}	3487	1
		3488	}
		3489
		3490	our $uuid_lock;
		3491	our $uuid_skip;
		3492
		3493	sub write_uuid_sync($) {
		3494	$uuid_skip ||= $_[0];
		3495
		3496	return if $uuid_lock;
		3497	local $uuid_lock = 1;
		3498
		3499	my $uuid = "$LOCALDIR/uuid";
		3500
		3501	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3502	or return;
		3503
		3504	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3505	$uuid_skip = 0;
		3506
		3507	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3508	and return;
		3509
		3510	# always fsync - this file is important
		3511	aio_fsync $fh
		3512	and return;
		3513
		3514	close $fh
		3515	or return;
		3516
		3517	aio_rename "$uuid~", $uuid
		3518	and return;
		3519
		3520	warn "uuid file written ($value).\n";
		3521
		3522	1
		3523
		3524	}
		3525
		3526	sub write_uuid($$) {
		3527	my ($skip, $sync) = @_;
		3528
		3529	$sync ? write_uuid_sync $skip
		3530	: async { write_uuid_sync $skip };
2251	}	3531	}
2252		3532
2253	sub emergency_save() {	3533	sub emergency_save() {
2254	my $freeze_guard = cf::freeze_mainloop;	3534	my $freeze_guard = cf::freeze_mainloop;
2255		3535
2256	warn "enter emergency perl save\n";	3536	warn "enter emergency perl save\n";
2257		3537
2258	cf::sync_job {	3538	cf::sync_job {
2259	# use a peculiar iteration method to avoid tripping on perl	3539	# use a peculiar iteration method to avoid tripping on perl
2260	# refcount bugs in for. also avoids problems with players	3540	# refcount bugs in for. also avoids problems with players
2261	# and maps saved/Destroyed asynchronously.	3541	# and maps saved/destroyed asynchronously.
2262	warn "begin emergency player save\n";	3542	warn "begin emergency player save\n";
2263	for my $login (keys %cf::PLAYER) {	3543	for my $login (keys %cf::PLAYER) {
2264	my $pl = $cf::PLAYER{$login} or next;	3544	my $pl = $cf::PLAYER{$login} or next;
2265	$pl->valid or next;	3545	$pl->valid or next;
		3546	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2266	$pl->save;	3547	$pl->save;
2267	}	3548	}
2268	warn "end emergency player save\n";	3549	warn "end emergency player save\n";
2269		3550
2270	warn "begin emergency map save\n";	3551	warn "begin emergency map save\n";
…		…
2272	my $map = $cf::MAP{$path} or next;	3553	my $map = $cf::MAP{$path} or next;
2273	$map->valid or next;	3554	$map->valid or next;
2274	$map->save;	3555	$map->save;
2275	}	3556	}
2276	warn "end emergency map save\n";	3557	warn "end emergency map save\n";
		3558
		3559	warn "begin emergency database checkpoint\n";
		3560	BDB::db_env_txn_checkpoint $DB_ENV;
		3561	warn "end emergency database checkpoint\n";
		3562
		3563	warn "begin write uuid\n";
		3564	write_uuid_sync 1;
		3565	warn "end write uuid\n";
2277	};	3566	};
2278		3567
2279	warn "leave emergency perl save\n";	3568	warn "leave emergency perl save\n";
2280	}	3569	}
2281		3570
		3571	sub post_cleanup {
		3572	my ($make_core) = @_;
		3573
		3574	warn Carp::longmess "post_cleanup backtrace"
		3575	if $make_core;
		3576	}
		3577
2282	sub reload() {	3578	sub do_reload_perl() {
2283	# can/must only be called in main	3579	# can/must only be called in main
2284	if ($Coro::current != $Coro::main) {	3580	if ($Coro::current != $Coro::main) {
2285	warn "can only reload from main coroutine\n";	3581	warn "can only reload from main coroutine";
2286	return;	3582	return;
2287	}	3583	}
2288		3584
2289	warn "reloading...";	3585	warn "reloading...";
2290		3586
2291	warn "freezing server";	3587	warn "entering sync_job";
2292	my $guard = freeze_mainloop;	3588
		3589	cf::sync_job {
		3590	cf::write_runtime_sync; # external watchdog should not bark
2293	cf::emergency_save;	3591	cf::emergency_save;
		3592	cf::write_runtime_sync; # external watchdog should not bark
2294		3593
2295	warn "sync database to disk";	3594	warn "syncing database to disk";
2296	cf::db_sync;	3595	BDB::db_env_txn_checkpoint $DB_ENV;
2297	IO::AIO::flush;
2298		3596
2299	eval {
2300	# if anything goes wrong in here, we should simply crash as we already saved	3597	# if anything goes wrong in here, we should simply crash as we already saved
2301		3598
2302	warn "cancel all watchers";	3599	warn "flushing outstanding aio requests";
2303	for (Event::all_watchers) {	3600	for (;;) {
2304	$_->cancel if $_->data & WF_AUTOCANCEL;	3601	BDB::flush;
		3602	IO::AIO::flush;
		3603	Coro::cede_notself;
		3604	last unless IO::AIO::nreqs || BDB::nreqs;
		3605	warn "iterate...";
2305	}	3606	}
2306		3607
		3608	++$RELOAD;
		3609
2307	warn "cancel all extension coros";	3610	warn "cancelling all extension coros";
2308	$_->cancel for values %EXT_CORO;	3611	$_->cancel for values %EXT_CORO;
2309	%EXT_CORO = ();	3612	%EXT_CORO = ();
2310		3613
2311	warn "remove commands";	3614	warn "removing commands";
2312	%COMMAND = ();	3615	%COMMAND = ();
2313		3616
2314	warn "remove ext commands";	3617	warn "removing ext/exti commands";
2315	%EXTCMD = ();	3618	%EXTCMD = ();
		3619	%EXTICMD = ();
2316		3620
2317	warn "unload/nuke all extensions";	3621	warn "unloading/nuking all extensions";
2318	for my $pkg (@EXTS) {	3622	for my $pkg (@EXTS) {
2319	warn "unloading <$pkg>";	3623	warn "... unloading $pkg";
2320		3624
2321	if (my $cb = $pkg->can ("unload")) {	3625	if (my $cb = $pkg->can ("unload")) {
2322	eval {	3626	eval {
2323	$cb->($pkg);	3627	$cb->($pkg);
2324	1	3628	1
2325	} or warn "$pkg unloaded, but with errors: $@";	3629	} or warn "$pkg unloaded, but with errors: $@";
2326	}	3630	}
2327		3631
		3632	warn "... nuking $pkg";
2328	Symbol::delete_package $pkg;	3633	Symbol::delete_package $pkg;
2329	}	3634	}
2330		3635
2331	warn "unload all perl modules loaded from $LIBDIR";	3636	warn "unloading all perl modules loaded from $LIBDIR";
2332	while (my ($k, $v) = each %INC) {	3637	while (my ($k, $v) = each %INC) {
2333	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3638	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2334		3639
2335	warn "removing <$k>";	3640	warn "... unloading $k";
2336	delete $INC{$k};	3641	delete $INC{$k};
2337		3642
2338	$k =~ s/\.pm$//;	3643	$k =~ s/\.pm$//;
2339	$k =~ s/\//::/g;	3644	$k =~ s/\//::/g;
2340		3645
…		…
2343	}	3648	}
2344		3649
2345	Symbol::delete_package $k;	3650	Symbol::delete_package $k;
2346	}	3651	}
2347		3652
2348	warn "get rid of safe::, as good as possible";	3653	warn "getting rid of safe::, as good as possible";
2349	Symbol::delete_package "safe::$_"	3654	Symbol::delete_package "safe::$_"
2350	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3655	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2351		3656
2352	warn "unload cf.pm \"a bit\"";	3657	warn "unloading cf.pm \"a bit\"";
2353	delete $INC{"cf.pm"};	3658	delete $INC{"cf.pm"};
		3659	delete $INC{"cf/pod.pm"};
2354		3660
2355	# don't, removes xs symbols, too,	3661	# don't, removes xs symbols, too,
2356	# and global variables created in xs	3662	# and global variables created in xs
2357	#Symbol::delete_package __PACKAGE__;	3663	#Symbol::delete_package __PACKAGE__;
2358		3664
		3665	warn "unload completed, starting to reload now";
		3666
2359	warn "reloading cf.pm";	3667	warn "reloading cf.pm";
2360	require cf;	3668	require cf;
2361	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3669	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2362		3670
2363	warn "load config and database again";	3671	warn "loading config and database again";
2364	cf::cfg_load;	3672	cf::reload_config;
2365	cf::db_load;
2366		3673
2367	warn "load extensions";	3674	warn "loading extensions";
2368	cf::load_extensions;	3675	cf::load_extensions;
2369		3676
2370	warn "reattach attachments to objects/players";	3677	warn "reattaching attachments to objects/players";
2371	_global_reattach;	3678	_global_reattach; # objects, sockets
2372	warn "reattach attachments to maps";	3679	warn "reattaching attachments to maps";
2373	reattach $_ for values %MAP;	3680	reattach $_ for values %MAP;
		3681	warn "reattaching attachments to players";
		3682	reattach $_ for values %PLAYER;
		3683
		3684	warn "leaving sync_job";
		3685
		3686	1
		3687	} or do {
		3688	warn $@;
		3689	cf::cleanup "error while reloading, exiting.";
2374	};	3690	};
2375
2376	if ($@) {
2377	warn $@;
2378	warn "error while reloading, exiting.";
2379	exit 1;
2380	}
2381		3691
2382	warn "reloaded";	3692	warn "reloaded";
2383	};	3693	};
2384		3694
2385	#############################################################################	3695	our $RELOAD_WATCHER; # used only during reload
2386		3696
2387	unless ($LINK_MAP) {	3697	sub reload_perl() {
2388	$LINK_MAP = cf::map::new;	3698	# doing reload synchronously and two reloads happen back-to-back,
		3699	# coro crashes during coro_state_free->destroy here.
2389		3700
2390	$LINK_MAP->width (41);	3701	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2391	$LINK_MAP->height (41);	3702	do_reload_perl;
2392	$LINK_MAP->alloc;	3703	undef $RELOAD_WATCHER;
2393	$LINK_MAP->path ("{link}");	3704	};
2394	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2395	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2396
2397	# dirty hack because... archetypes are not yet loaded
2398	Event->timer (
2399	after => 10,
2400	cb => sub {
2401	$_[0]->w->cancel;
2402
2403	# provide some exits "home"
2404	my $exit = cf::object::new "exit";
2405
2406	$exit->slaying ($EMERGENCY_POSITION->[0]);
2407	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2408	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2409
2410	$LINK_MAP->insert ($exit->clone, 19, 19);
2411	$LINK_MAP->insert ($exit->clone, 19, 20);
2412	$LINK_MAP->insert ($exit->clone, 19, 21);
2413	$LINK_MAP->insert ($exit->clone, 20, 19);
2414	$LINK_MAP->insert ($exit->clone, 20, 21);
2415	$LINK_MAP->insert ($exit->clone, 21, 19);
2416	$LINK_MAP->insert ($exit->clone, 21, 20);
2417	$LINK_MAP->insert ($exit->clone, 21, 21);
2418
2419	$exit->destroy;
2420	});
2421
2422	$LINK_MAP->{deny_save} = 1;
2423	$LINK_MAP->{deny_reset} = 1;
2424
2425	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2426	}	3705	}
2427		3706
2428	register_command "reload" => sub {	3707	register_command "reload" => sub {
2429	my ($who, $arg) = @_;	3708	my ($who, $arg) = @_;
2430		3709
2431	if ($who->flag (FLAG_WIZ)) {	3710	if ($who->flag (FLAG_WIZ)) {
2432	$who->message ("start of reload.");
2433	reload;
2434	$who->message ("end of reload.");	3711	$who->message ("reloading server.");
		3712	async {
		3713	$Coro::current->{desc} = "perl_reload";
		3714	reload_perl;
		3715	};
2435	}	3716	}
2436	};	3717	};
2437		3718
2438	unshift @INC, $LIBDIR;	3719	unshift @INC, $LIBDIR;
2439		3720
2440	$TICK_WATCHER = Event->timer (	3721	my $bug_warning = 0;
2441	reentrant => 0,	3722
2442	prio => 0,	3723	our @WAIT_FOR_TICK;
2443	at => $NEXT_TICK || $TICK,	3724	our @WAIT_FOR_TICK_BEGIN;
2444	data => WF_AUTOCANCEL,	3725
2445	cb => sub {	3726	sub wait_for_tick {
		3727	return if tick_inhibit || $Coro::current == $Coro::main;
		3728
		3729	my $signal = new Coro::Signal;
		3730	push @WAIT_FOR_TICK, $signal;
		3731	$signal->wait;
		3732	}
		3733
		3734	sub wait_for_tick_begin {
		3735	return if tick_inhibit || $Coro::current == $Coro::main;
		3736
		3737	my $signal = new Coro::Signal;
		3738	push @WAIT_FOR_TICK_BEGIN, $signal;
		3739	$signal->wait;
		3740	}
		3741
		3742	sub tick {
		3743	if ($Coro::current != $Coro::main) {
		3744	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3745	unless ++$bug_warning > 10;
		3746	return;
		3747	}
		3748
2446	cf::server_tick; # one server iteration	3749	cf::server_tick; # one server iteration
2447	$RUNTIME += $TICK;
2448	$NEXT_TICK += $TICK;
2449		3750
2450	$WAIT_FOR_TICK->broadcast;	3751	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2451	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3752	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2452		3753	Coro::async_pool {
2453	# if we are delayed by four ticks or more, skip them all	3754	$Coro::current->{desc} = "runtime saver";
2454	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2455
2456	$TICK_WATCHER->at ($NEXT_TICK);
2457	$TICK_WATCHER->start;
2458	},
2459	);
2460
2461	IO::AIO::max_poll_time $TICK * 0.2;
2462
2463	Event->io (
2464	fd => IO::AIO::poll_fileno,
2465	poll => 'r',
2466	prio => 5,
2467	data => WF_AUTOCANCEL,
2468	cb => \&IO::AIO::poll_cb,
2469	);
2470
2471	Event->timer (
2472	data => WF_AUTOCANCEL,
2473	after => 0,
2474	interval => 10,
2475	cb => sub {
2476	(Coro::unblock_sub {
2477	write_runtime	3755	write_runtime_sync
2478	or warn "ERROR: unable to write runtime file: $!";	3756	or warn "ERROR: unable to write runtime file: $!";
2479	})->();	3757	};
2480	},	3758	}
2481	);	3759
		3760	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3761	$sig->send;
		3762	}
		3763	while (my $sig = shift @WAIT_FOR_TICK) {
		3764	$sig->send;
		3765	}
		3766
		3767	$LOAD = ($NOW - $TICK_START) / $TICK;
		3768	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3769
		3770	if (0) {
		3771	if ($NEXT_TICK) {
		3772	my $jitter = $TICK_START - $NEXT_TICK;
		3773	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3774	warn "jitter $JITTER\n";#d#
		3775	}
		3776	}
		3777	}
		3778
		3779	{
		3780	# configure BDB
		3781
		3782	BDB::min_parallel 8;
		3783	BDB::max_poll_reqs $TICK * 0.1;
		3784	$Coro::BDB::WATCHER->priority (1);
		3785
		3786	unless ($DB_ENV) {
		3787	$DB_ENV = BDB::db_env_create;
		3788	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3789	| BDB::LOG_AUTOREMOVE, 1);
		3790	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3791	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3792
		3793	cf::sync_job {
		3794	eval {
		3795	BDB::db_env_open
		3796	$DB_ENV,
		3797	$BDBDIR,
		3798	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3799	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3800	0666;
		3801
		3802	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3803	};
		3804
		3805	cf::cleanup "db_env_open(db): $@" if $@;
		3806	};
		3807	}
		3808
		3809	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3810	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3811	};
		3812	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3813	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3814	};
		3815	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3816	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3817	};
		3818	}
		3819
		3820	{
		3821	# configure IO::AIO
		3822
		3823	IO::AIO::min_parallel 8;
		3824	IO::AIO::max_poll_time $TICK * 0.1;
		3825	$Coro::AIO::WATCHER->priority (1);
		3826	}
		3827
		3828	my $_log_backtrace;
		3829
		3830	sub _log_backtrace {
		3831	my ($msg, @addr) = @_;
		3832
		3833	$msg =~ s/\n//;
		3834
		3835	# limit the # of concurrent backtraces
		3836	if ($_log_backtrace < 2) {
		3837	++$_log_backtrace;
		3838	async {
		3839	$Coro::current->{desc} = "abt $msg";
		3840
		3841	my @bt = fork_call {
		3842	@addr = map { sprintf "%x", $_ } @addr;
		3843	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3844	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3845	or die "addr2line: $!";
		3846
		3847	my @funcs;
		3848	my @res = <$fh>;
		3849	chomp for @res;
		3850	while (@res) {
		3851	my ($func, $line) = splice @res, 0, 2, ();
		3852	push @funcs, "[$func] $line";
		3853	}
		3854
		3855	@funcs
		3856	};
		3857
		3858	LOG llevInfo, "[ABT] $msg\n";
		3859	LOG llevInfo, "[ABT] $_\n" for @bt;
		3860	--$_log_backtrace;
		3861	};
		3862	} else {
		3863	LOG llevInfo, "[ABT] $msg\n";
		3864	LOG llevInfo, "[ABT] [suppressed]\n";
		3865	}
		3866	}
		3867
		3868	# load additional modules
		3869	use cf::pod;
2482		3870
2483	END { cf::emergency_save }	3871	END { cf::emergency_save }
2484		3872
2485	1	3873	1
2486		3874

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