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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.156 by root, Tue Jan 9 22:07:08 2007 UTC vs.
Revision 1.431 by elmex, Sun May 4 19:27:27 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 = ();
		71
		72	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
		75	our %EXT_CORO = (); # coroutines bound to extensions
		76	our %EXT_MAP = (); # pluggable maps
39		77
		78	our $RELOAD; # number of reloads so far
40	our @EVENT;	79	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		80
43	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(!)
44	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	97	our $NEXT_TICK;
46	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;
47		105
48	our %CFG;	106	our %CFG;
49		107
50	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
52		111
53	our %PLAYER; # all users	112	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	113	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	114	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		115
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	116	# used to convert map paths into valid unix filenames by replacing / by ∕
60	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 $TICK_START; # for load detecting purposes
61		123
62	binmode STDOUT;	124	binmode STDOUT;
63	binmode STDERR;	125	binmode STDERR;
64		126
65	# read virtual server time, if available	127	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
70	}	132	}
71		133
72	mkdir cf::localdir;	134	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		136
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
		138
		139	sub cf::map::normalise;
81		140
82	#############################################################################	141	#############################################################################
83		142
84	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
85		144
…		…
92	=item $cf::RUNTIME	151	=item $cf::RUNTIME
93		152
94	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
95	every server tick.	154	every server tick.
96		155
97	=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
98		159
99	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
100	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.
101		164
102	=item $cf::NOW	165	=item $cf::NOW
103		166
104	The time of the last (current) server tick.	167	The time of the last (current) server tick.
105		168
106	=item $cf::TICK	169	=item $cf::TICK
107		170
108	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
109		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
110	=item %cf::CFG	183	=item %cf::CFG
111		184
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	186	from wherever your confdir points to.
114		187
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	188	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		189
117	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
118	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
119	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.
120	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.
121		199
122	=back	200	=back
123		201
124	=cut	202	=cut
125		203
126	BEGIN {	204	BEGIN {
127	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	206	my $msg = join "", @_;
129	utf8::encode $msg;
130		207
131	$msg .= "\n"	208	$msg .= "\n"
132	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
133		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
134	LOG llevError, $msg;	213	LOG llevError, $msg;
135	};	214	};
136	}	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#?
137		231
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@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';
143	@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)
144		239
145	# 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
146	# within the Safe compartment.	241	# within the Safe compartment.
147	for my $pkg (qw(	242	for my $pkg (qw(
148	cf::global cf::attachable	243	cf::global cf::attachable
…		…
153	)) {	248	)) {
154	no strict 'refs';	249	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	251	}
157		252
158	$Event::DIED = sub {	253	$EV::DIED = sub {
159	warn "error in event callback: @_";	254	warn "error in event callback: @_";
160	};	255	};
161		256
162	my %ext_pkg;	257	#############################################################################
163	my @exts;
164	my @hook;
165		258
166	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
167		260
168	=over 4	261	=over 4
169		262
…		…
188	$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;
189	$d	282	$d
190	} || "[unable to dump $_[0]: '$@']";	283	} || "[unable to dump $_[0]: '$@']";
191	}	284	}
192		285
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
196		287
197	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
198		289
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
207		291
208	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
209		293
210	=cut	294	=cut
211		295
212	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
214	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
215	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
216		300
217	=item cf::lock_wait $string	301	=item cf::lock_wait $string
218		302
219	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
220		304
…		…
223	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
224	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,
225	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
226	returned.	310	returned.
227		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
228	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
229	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
230		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
231	=cut	322	=cut
232		323
233	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
234		326
235	sub lock_wait($) {	327	sub lock_wait($) {
236	my ($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#
237		334
238	# wait for lock, if any	335	# wait for lock, if any
239	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	338	Coro::schedule;
…		…
247		344
248	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
249	lock_wait $key;	346	lock_wait $key;
250		347
251	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
252		350
253	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
256	}	355	}
257	}	356	}
258		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
259	sub freeze_mainloop {	364	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
261		366
262	my $guard = Coro::guard { $TICK_WATCHER->start };	367	Coro::guard \&tick_inhibit_dec;
263	$TICK_WATCHER->stop;	368	}
264	$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	$sig->wait;
265	}	443	}
266		444
267	=item cf::async { BLOCK }	445	=item cf::async { BLOCK }
268		446
269	Currently the same as Coro::async_pool, meaning you cannot use	447	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		452
275	BEGIN { *async = \&Coro::async_pool }	453	BEGIN { *async = \&Coro::async_pool }
276		454
277	=item cf::sync_job { BLOCK }	455	=item cf::sync_job { BLOCK }
278		456
279	The design of crossfire+ requires that the main coro ($Coro::main) is	457	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	458	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	459	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		460	acceptable.
282		461
283	If it must be done, put the blocking parts into C<sync_job>. This will run	462	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	463	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	464	server will be frozen during this time, so the block should either finish
286	fast or be very important.	465	fast or be very important.
…		…
289		468
290	sub sync_job(&) {	469	sub sync_job(&) {
291	my ($job) = @_;	470	my ($job) = @_;
292		471
293	if ($Coro::current == $Coro::main) {	472	if ($Coro::current == $Coro::main) {
		473	my $time = EV::time;
		474
294	# this is the main coro, too bad, we have to block	475	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	476	# till the operation succeeds, freezing the server :/
296		477
297	# TODO: use suspend/resume instead	478	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	479
299	my $freeze_guard = freeze_mainloop;	480	my $freeze_guard = freeze_mainloop;
300		481
301	my $busy = 1;	482	my $busy = 1;
302	my @res;	483	my @res;
303		484
304	(async {	485	(async {
		486	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	487	@res = eval { $job->() };
306	warn $@ if $@;	488	warn $@ if $@;
307	undef $busy;	489	undef $busy;
308	})->prio (Coro::PRIO_MAX);	490	})->prio (Coro::PRIO_MAX);
309		491
310	while ($busy) {	492	while ($busy) {
311	Coro::cede or Event::one_event;	493	if (Coro::nready) {
		494	Coro::cede_notself;
		495	} else {
		496	EV::loop EV::LOOP_ONESHOT;
312	}	497	}
		498	}
		499
		500	my $time = EV::time - $time;
		501
		502	$TICK_START += $time; # do not account sync jobs to server load
313		503
314	wantarray ? @res : $res[0]	504	wantarray ? @res : $res[0]
315	} else {	505	} else {
316	# we are in another coroutine, how wonderful, everything just works	506	# we are in another coroutine, how wonderful, everything just works
317		507
…		…
319	}	509	}
320	}	510	}
321		511
322	=item $coro = cf::async_ext { BLOCK }	512	=item $coro = cf::async_ext { BLOCK }
323		513
324	Like async, but this coro is automcatially being canceled when the	514	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	515	extension calling this is being unloaded.
326		516
327	=cut	517	=cut
328		518
329	sub async_ext(&) {	519	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	527	$EXT_CORO{$coro+0} = $coro;
338		528
339	$coro	529	$coro
340	}	530	}
341		531
342	sub write_runtime {	532	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		533
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	534	Executes the given code block with the given arguments in a seperate
346	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.
347		538
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	539	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		540
352	aio_fsync $fh	541	sub fork_call(&@) {
353	and return;	542	my ($cb, @args) = @_;
354		543
355	close $fh	544	# we seemingly have to make a local copy of the whole thing,
356	or return;	545	# otherwise perl prematurely frees the stuff :/
		546	# TODO: investigate and fix (likely this will be rather laborious)
357		547
358	aio_rename "$runtime~", $runtime	548	my @res = Coro::Util::fork_eval {
359	and return;	549	reset_signals;
		550	&$cb
		551	}, @args;
360		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($$) {
		625	my $key = "$_[0]/$_[1]";
		626
		627	cf::sync_job {
		628	BDB::db_get $DB, undef, $key, my $data;
		629
		630	$! ? ()
		631	: $data
361	1	632	}
		633	}
		634
		635	sub db_put($$$) {
		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 });
362	}	719	}
363		720
364	=back	721	=back
365		722
366	=cut	723	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		724
490	#############################################################################	725	#############################################################################
491		726
492	=head2 ATTACHABLE OBJECTS	727	=head2 ATTACHABLE OBJECTS
493		728
…		…
495	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")
496	to it. All such attachable objects support the following methods.	731	to it. All such attachable objects support the following methods.
497		732
498	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>
499	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
500	crossfire+).	735	Deliantra).
501		736
502	=over 4	737	=over 4
503		738
504	=item $attachable->attach ($attachment, key => $value...)	739	=item $attachable->attach ($attachment, key => $value...)
505		740
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	854	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	855	our @CB_MAP = ();
621		856
622	my %attachment;	857	my %attachment;
623		858
		859	sub cf::attachable::thawer_merge {
		860	# simply override everything except _meta
		861	local $_[0]{_meta};
		862	%{$_[0]} = %{$_[1]};
		863	}
		864
624	sub _attach_cb($$$$) {	865	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	866	my ($registry, $event, $prio, $cb) = @_;
626		867
627	use sort 'stable';	868	use sort 'stable';
628		869
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	903	$registry = $CB_TYPE[$object_type] ||= [];
663		904
664	} elsif ($type eq "subtype") {	905	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	906	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	907	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	908	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		909
669	} elsif ($type eq "package") {	910	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	911	my $pkg = shift @arg;
671		912
672	while (my ($name, $id) = each %cb_id) {	913	while (my ($name, $id) = each %cb_id) {
…		…
701	_attach $registry, $klass, @attach;	942	_attach $registry, $klass, @attach;
702	}	943	}
703		944
704	$obj->{$name} = \%arg;	945	$obj->{$name} = \%arg;
705	} else {	946	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	947	warn "object uses attachment '$name' which is not available, postponing.\n";
707	}	948	}
708		949
709	$obj->{_attachment}{$name} = undef;	950	$obj->{_attachment}{$name} = undef;
710	}	951	}
711		952
…		…
713	if (ref $_[0]) {	954	if (ref $_[0]) {
714	_object_attach @_;	955	_object_attach @_;
715	} else {	956	} else {
716	_attach shift->_attach_registry, @_;	957	_attach shift->_attach_registry, @_;
717	}	958	}
		959	_recalc_want;
718	};	960	};
719		961
720	# all those should be optimised	962	# all those should be optimised
721	sub cf::attachable::detach {	963	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	964	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	967	delete $obj->{_attachment}{$name};
726	reattach ($obj);	968	reattach ($obj);
727	} else {	969	} else {
728	Carp::croak "cannot, currently, detach class attachments";	970	Carp::croak "cannot, currently, detach class attachments";
729	}	971	}
		972	_recalc_want;
730	};	973	};
731		974
732	sub cf::attachable::attached {	975	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	976	my ($obj, $name) = @_;
734		977
…		…
749	";	992	";
750	die if $@;	993	die if $@;
751	}	994	}
752		995
753	our $override;	996	our $override;
754	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?
755		998
756	sub override {	999	sub override {
757	$override = 1;	1000	$override = 1;
758	@invoke_results = ();	1001	@INVOKE_RESULTS = (@_);
759	}	1002	}
760		1003
761	sub do_invoke {	1004	sub do_invoke {
762	my $event = shift;	1005	my $event = shift;
763	my $callbacks = shift;	1006	my $callbacks = shift;
764		1007
765	@invoke_results = ();	1008	@INVOKE_RESULTS = ();
766		1009
767	local $override;	1010	local $override;
768		1011
769	for (@$callbacks) {	1012	for (@$callbacks) {
770	eval { &{$_->[1]} };	1013	eval { &{$_->[1]} };
…		…
779	}	1022	}
780		1023
781	0	1024	0
782	}	1025	}
783		1026
784	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
785		1028
786	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1029	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
787		1030
788	Generate an object-specific event with the given arguments.	1031	Generate an object-specific event with the given arguments.
789		1032
790	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
791	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
792	results (if you must, access C<@cf::invoke_results> directly).	1035	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		1036
794	=back	1037	=back
795		1038
796	=cut	1039	=cut
797		1040
798	#############################################################################	1041	#############################################################################
799	# 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	}
800		1085
801	sub reattach {	1086	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	1087	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	1088	my ($obj) = @_;
		1089
		1090	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		1091
805	my $registry = $obj->registry;	1092	my $registry = $obj->registry;
806		1093
807	@$registry = ();	1094	@$registry = ();
808		1095
…		…
823	cf::attachable->attach (	1110	cf::attachable->attach (
824	prio => -1000000,	1111	prio => -1000000,
825	on_instantiate => sub {	1112	on_instantiate => sub {
826	my ($obj, $data) = @_;	1113	my ($obj, $data) = @_;
827		1114
828	$data = from_json $data;	1115	$data = decode_json $data;
829		1116
830	for (@$data) {	1117	for (@$data) {
831	my ($name, $args) = @$_;	1118	my ($name, $args) = @$_;
832		1119
833	$obj->attach ($name, %{$args || {} });	1120	$obj->attach ($name, %{$args || {} });
…		…
849	sub object_freezer_save {	1136	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1137	my ($filename, $rdata, $objs) = @_;
851		1138
852	sync_job {	1139	sync_job {
853	if (length $$rdata) {	1140	if (length $$rdata) {
		1141	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1142	warn sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1143	$decname, length $$rdata, scalar @$objs;
856		1144
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1145	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1146	aio_chmod $fh, SAVE_MODE;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1147	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	1148	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	1149	aio_close $fh;
862		1150
863	if (@$objs) {	1151	if (@$objs) {
864	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) {
865	chmod SAVE_MODE, $fh;	1153	aio_chmod $fh, SAVE_MODE;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1154	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1155	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	1157	aio_close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1158	aio_rename "$filename.pst~", "$filename.pst";
871	}	1159	}
872	} else {	1160	} else {
873	aio_unlink "$filename.pst";	1161	aio_unlink "$filename.pst";
874	}	1162	}
…		…
879	}	1167	}
880	} else {	1168	} else {
881	aio_unlink $filename;	1169	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1170	aio_unlink "$filename.pst";
883	}	1171	}
884	}	1172	};
885	}	1173	}
886		1174
887	sub object_freezer_as_string {	1175	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1176	my ($rdata, $objs) = @_;
889		1177
…		…
901	or return;	1189	or return;
902		1190
903	unless (aio_stat "$filename.pst") {	1191	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1192	(aio_load "$filename.pst", $av) >= 0
905	or return;	1193	or return;
		1194
906	$av = eval { (Storable::thaw $av)->{objs} };	1195	my $st = eval { Coro::Storable::thaw $av };
		1196	$av = $st->{objs};
907	}	1197	}
908		1198
		1199	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1200	warn sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1201	$decname, length $data, scalar @{$av || []};
		1202
911	return ($data, $av);	1203	($data, $av)
912	}	1204	}
		1205
		1206	=head2 COMMAND CALLBACKS
		1207
		1208	=over 4
		1209
		1210	=cut
913		1211
914	#############################################################################	1212	#############################################################################
915	# command handling &c	1213	# command handling &c
916		1214
917	=item cf::register_command $name => \&callback($ob,$args);	1215	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1228	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1229	}
932		1230
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1231	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1232
935	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.
936		1238
937	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
938	called.	1240	called.
939		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
940	=cut	1253	=cut
941		1254
942	sub register_extcmd {	1255	sub register_extcmd {
943	my ($name, $cb) = @_;	1256	my ($name, $cb) = @_;
944		1257
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	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->[0]->($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 register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {
990	my ($path) = @_;
991
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;
994	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}
1058
1059	sub load_extensions {	1308	sub load_extensions {
		1309	cf::sync_job {
		1310	my %todo;
		1311
1060	for my $ext (<$LIBDIR/*.ext>) {	1312	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1313	next unless -r $path;
1062	eval {	1314
1063	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;
1064	1	1371	}
1065	} or warn "$ext not loaded: $@";	1372
		1373	skip:
		1374	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1375	unless $progress;
		1376	}
1066	}	1377	};
1067	}	1378	}
1068		1379
1069	#############################################################################	1380	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1381
1072	*cf::mapsupport::on_clean = sub {	1382	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1383
1085	=head2 CORE EXTENSIONS	1384	=head2 CORE EXTENSIONS
1086		1385
1087	Functions and methods that extend core crossfire objects.	1386	Functions and methods that extend core crossfire objects.
1088		1387
…		…
1094		1393
1095	=head3 cf::player	1394	=head3 cf::player
1096		1395
1097	=over 4	1396	=over 4
1098		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
1099	=item cf::player::find $login	1412	=item cf::player::find $login
1100		1413
1101	Returns the given player object, loading it if necessary (might block).	1414	Returns the given player object, loading it if necessary (might block).
1102		1415
1103	=cut	1416	=cut
1104		1417
1105	sub playerdir($) {	1418	sub playerdir($) {
1106	cf::localdir	1419	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1420	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1421	}
1112		1422
1113	sub path($) {	1423	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1424	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1425
1116	(playerdir $login) . "/$login.pl"	1426	(playerdir $login) . "/playerdata"
1117	}	1427	}
1118		1428
1119	sub find_active($) {	1429	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1430	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1431	and $cf::PLAYER{$_[0]}->active
…		…
1124		1434
1125	sub exists($) {	1435	sub exists($) {
1126	my ($login) = @_;	1436	my ($login) = @_;
1127		1437
1128	$cf::PLAYER{$login}	1438	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1439	or cf::sync_job { !aio_stat path $login }
1130	}	1440	}
1131		1441
1132	sub find($) {	1442	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1443	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1444	my $login = $_[0];
1135		1445
1136	my $guard = cf::lock_acquire "user_find:$login";	1446	my $guard = cf::lock_acquire "user_find:$login";
1137		1447
1138	$cf::PLAYER{$_[0]} || do {	1448	$cf::PLAYER{$_[0]} || do {
1139	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
1140	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;
1141	$cf::PLAYER{$login} = $pl	1464	$cf::PLAYER{$login} = $pl
1142	}	1465	}
1143	}	1466	}
1144	}	1467	}
1145		1468
…		…
1154	return if $pl->{deny_save};	1477	return if $pl->{deny_save};
1155		1478
1156	aio_mkdir playerdir $pl, 0770;	1479	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1480	$pl->{last_save} = $cf::RUNTIME;
1158		1481
		1482	cf::get_slot 0.01;
		1483
1159	$pl->save_pl ($path);	1484	$pl->save_pl ($path);
1160	Coro::cede;	1485	cf::cede_to_tick;
1161	}	1486	}
1162		1487
1163	sub new($) {	1488	sub new($) {
1164	my ($login) = @_;	1489	my ($login) = @_;
1165		1490
…		…
1171	$cf::PLAYER{$login} = $self;	1496	$cf::PLAYER{$login} = $self;
1172		1497
1173	$self	1498	$self
1174	}	1499	}
1175		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
1176	=item $pl->quit_character	1511	=item $pl->quit_character
1177		1512
1178	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
1179	be destroyed. May block for a long time.	1514	be destroyed. May block for a long time.
1180		1515
1181	=cut	1516	=cut
1182		1517
1183	sub quit_character {	1518	sub quit_character {
1184	my ($pl) = @_;	1519	my ($pl) = @_;
		1520
		1521	my $name = $pl->ob->name;
1185		1522
1186	$pl->{deny_save} = 1;	1523	$pl->{deny_save} = 1;
1187	$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
1188		1525
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1526	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1531	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1532	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1533	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1534	delete $cf::PLAYER{$pl->ob->name};
1198	$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
1199	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;
1200	}	1557	}
1201		1558
1202	=item cf::player::list_logins	1559	=item cf::player::list_logins
1203		1560
1204	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
1205	while and may block, so not sync_job-capable, ever.	1562	while and may block, so not sync_job-capable, ever.
1206		1563
1207	=cut	1564	=cut
1208		1565
1209	sub list_logins {	1566	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1567	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1568	or return [];
1212		1569
1213	my @logins;	1570	my @logins;
1214		1571
1215	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") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1578	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1579	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1580	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1581	}
1219		1582
1220	utf8::decode $login;	1583	utf8::decode $login;
1221	push @logins, $login;	1584	push @logins, $login;
1222	}	1585	}
1223		1586
1224	\@logins	1587	\@logins
1225	}	1588	}
1226		1589
1227	=item $player->maps	1590	=item $player->maps
1228		1591
1229	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
1230	player. May block.	1593	player. May block.
1231		1594
1232	=cut	1595	=cut
1233		1596
1234	sub maps($) {	1597	sub maps($) {
1235	my ($pl) = @_;	1598	my ($pl) = @_;
		1599
		1600	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1601
1237	my $files = aio_readdir playerdir $pl	1602	my $files = aio_readdir playerdir $pl
1238	or return;	1603	or return;
1239		1604
1240	my @paths;	1605	my @paths;
1241		1606
1242	for (@$files) {	1607	for (@$files) {
1243	utf8::decode $_;	1608	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1609	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1610	next unless /^$PATH_SEP/o;
1246		1611
1247	s/$PATH_SEP/\//g;	1612	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1613	}
1250		1614
1251	\@paths	1615	\@paths
1252	}	1616	}
1253		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
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1711	=item $player->ext_reply ($msgid, @msg)
1255		1712
1256	Sends an ext reply to the player.	1713	Sends an ext reply to the player.
1257		1714
1258	=cut	1715	=cut
1259		1716
1260	sub ext_reply($$$%) {	1717	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1718	my ($self, $id, @msg) = @_;
1262		1719
1263	$msg{msgid} = $id;	1720	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1721	}
1267		1722
1268	package cf;	1723	=item $player->ext_msg ($type, @msg)
		1724
		1725	Sends an ext event to the client.
		1726
		1727	=cut
		1728
		1729	sub ext_msg($$@) {
		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	}
1269		1763
1270	=back	1764	=back
1271
1272		1765
1273	=head3 cf::map	1766	=head3 cf::map
1274		1767
1275	=over 4	1768	=over 4
1276		1769
…		…
1279	package cf::map;	1772	package cf::map;
1280		1773
1281	use Fcntl;	1774	use Fcntl;
1282	use Coro::AIO;	1775	use Coro::AIO;
1283		1776
		1777	use overload
		1778	'""' => \&as_string,
		1779	fallback => 1;
		1780
1284	our $MAX_RESET = 3600;	1781	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1782	our $DEFAULT_RESET = 3000;
1286		1783
1287	sub generate_random_map {	1784	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1785	my ($self, $rmp) = @_;
		1786
		1787	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1289		1788
1290	# mit "rum" bekleckern, nicht	1789	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1790	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1791	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1792	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1793	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1794	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1795	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1796	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1797	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1798	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$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},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1800	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(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"
1304	}	1930	}
1305		1931
1306	# and all this just because we cannot iterate over	1932	# and all this just because we cannot iterate over
1307	# all maps in C++...	1933	# all maps in C++...
1308	sub change_all_map_light {	1934	sub change_all_map_light {
…		…
1310		1936
1311	$_->change_map_light ($change)	1937	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1938	for grep $_->outdoor, values %cf::MAP;
1313	}	1939	}
1314		1940
		1941	sub decay_objects {
		1942	my ($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
1315	sub try_load_header($) {	1957	sub load_header_from($) {
1316	my ($path) = @_;	1958	my ($self, $path) = @_;
1317		1959
1318	utf8::encode $path;	1960	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1961	my $f = new_from_file cf::object::thawer $path
1320	or return;	1962	or return;
1321		1963
1322	my $map = cf::map::new	1964	$self->_load_header ($f)
1323	or return;	1965	or return;
1324		1966
1325	# for better error messages only, will be overwritten	1967	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	1968	$f->resolve_delayed_derefs;
1327		1969
1328	$map->load_header ($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
1329	or return;	2013	or return;
		2014	$self->prepare_orig;
		2015	}
1330		2016
1331	$map->{load_path} = $path;	2017	$self->{deny_reset} = 1
		2018	if $self->no_reset;
1332		2019
1333	$map	2020	$self->default_region (cf::region::find_by_path $self->{path})
		2021	unless $self->default_region;
		2022
		2023	1
1334	}	2024	}
1335		2025
1336	sub find;	2026	sub find;
1337	sub find {	2027	sub find {
1338	my ($path, $origin) = @_;	2028	my ($path, $origin) = @_;
1339		2029
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	2030	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		2031
		2032	cf::lock_wait "map_data:$path";#d#remove
1345	cf::lock_wait "map_find:$key";	2033	cf::lock_wait "map_find:$path";
1346		2034
1347	$cf::MAP{$key} || do {	2035	$cf::MAP{$path} || do {
		2036	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1348	my $guard = cf::lock_acquire "map_find:$key";	2037	my $guard2 = cf::lock_acquire "map_find:$path";
1349		2038
1350	# do it the slow way	2039	my $map = new_from_path cf::map $path
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	2040	or return;
1369		2041
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	2042	$map->{last_save} = $cf::RUNTIME;
1382		2043
1383	Coro::cede;	2044	$map->load_header
		2045	or return;
1384		2046
1385	if ($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 $guard2;
		2051	undef $guard1;
1386	$map->reset;	2052	$map->reset;
1387	undef $guard;
1388	$map = find $path	2053	return find $path;
1389	or return;
1390	}	2054	}
1391		2055
1392	$cf::MAP{$key} = $map	2056	$cf::MAP{$path} = $map
1393	}	2057	}
1394	}	2058	}
		2059
		2060	sub pre_load { }
		2061	sub post_load { }
1395		2062
1396	sub load {	2063	sub load {
1397	my ($self) = @_;	2064	my ($self) = @_;
1398		2065
		2066	local $self->{deny_reset} = 1; # loading can take a long time
		2067
1399	my $path = $self->{path};	2068	my $path = $self->{path};
		2069
		2070	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2071	my $guard = cf::lock_acquire "map_data:$path";
1401		2072
		2073	return unless $self->valid;
1402	return if $self->in_memory != cf::MAP_SWAPPED;	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
1403		2075
1404	$self->in_memory (cf::MAP_LOADING);	2076	$self->in_memory (cf::MAP_LOADING);
1405		2077
1406	$self->alloc;	2078	$self->alloc;
1407	$self->load_objects ($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)
1408	or return;	2086	or return;
1409		2087
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2088	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	2089	if delete $self->{load_original};
1412		2090
1413	if (my $uniq = $path->uniq_path) {	2091	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	2092	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	2095	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
1418	}	2099	}
1419	}	2100	}
1420		2101
1421	Coro::cede;	2102	$f->resolve_delayed_derefs;
1422		2103
		2104	cf::cede_to_tick;
1423	# now do the right thing for maps	2105	# now do the right thing for maps
1424	$self->link_multipart_objects;	2106	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	2107	$self->difficulty ($self->estimate_difficulty)
1435	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;
1436	$self->activate;	2118	$self->activate;
1437	}	2119	}
1438		2120
1439	Coro::cede;	2121	$self->{last_save} = $cf::RUNTIME;
		2122	$self->last_access ($cf::RUNTIME);
1440		2123
1441	$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	$self
		2140	}
		2141
		2142	# find and load all maps in the 3x3 area around a map
		2143	sub load_neighbours {
		2144	my ($map) = @_;
		2145
		2146	my @neigh; # diagonal neighbours
		2147
		2148	for (0 .. 3) {
		2149	my $neigh = $map->tile_path ($_)
		2150	or next;
		2151	$neigh = find $neigh, $map
		2152	or next;
		2153	$neigh->load;
		2154
		2155	push @neigh,
		2156	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2157	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2158	}
		2159
		2160	for (grep defined $_->[0], @neigh) {
		2161	my ($path, $origin) = @$_;
		2162	my $neigh = find $path, $origin
		2163	or next;
		2164	$neigh->load;
		2165	}
1442	}	2166	}
1443		2167
1444	sub find_sync {	2168	sub find_sync {
1445	my ($path, $origin) = @_;	2169	my ($path, $origin) = @_;
1446		2170
1447	cf::sync_job { cf::map::find $path, $origin }	2171	cf::sync_job { find $path, $origin }
1448	}	2172	}
1449		2173
1450	sub do_load_sync {	2174	sub do_load_sync {
1451	my ($map) = @_;	2175	my ($map) = @_;
1452		2176
		2177	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2178	if $Coro::current == $Coro::main;
		2179
1453	cf::sync_job { $map->load };	2180	cf::sync_job { $map->load };
		2181	}
		2182
		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
		2197	$MAP_PREFETCHER ||= cf::async {
		2198	$Coro::current->{desc} = "map prefetcher";
		2199
		2200	while (%MAP_PREFETCH) {
		2201	while (my ($k, $v) = each %MAP_PREFETCH) {
		2202	if (my $map = find $k) {
		2203	$map->load if $v;
		2204	}
		2205
		2206	delete $MAP_PREFETCH{$k};
		2207	}
		2208	}
		2209	undef $MAP_PREFETCHER;
		2210	};
		2211	$MAP_PREFETCHER->prio (6);
		2212
		2213	()
1454	}	2214	}
1455		2215
1456	sub save {	2216	sub save {
1457	my ($self) = @_;	2217	my ($self) = @_;
1458		2218
1459	my $lock = cf::lock_acquire "map_data:" . $self->path;	2219	my $lock = cf::lock_acquire "map_data:$self->{path}";
1460		2220
1461	$self->{last_save} = $cf::RUNTIME;	2221	$self->{last_save} = $cf::RUNTIME;
1462		2222
1463	return unless $self->dirty;	2223	return unless $self->dirty;
1464		2224
1465	my $save = $self->{path}->save_path; utf8::encode $save;	2225	my $save = $self->save_path; utf8::encode $save;
1466	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2226	my $uniq = $self->uniq_path; utf8::encode $uniq;
1467		2227
1468	$self->{load_path} = $save;	2228	$self->{load_path} = $save;
1469		2229
1470	return if $self->{deny_save};	2230	return if $self->{deny_save};
1471		2231
1472	local $self->{last_access} = $self->last_access;#d#	2232	local $self->{last_access} = $self->last_access;#d#
1473		2233
1474	cf::async {	2234	cf::async {
		2235	$Coro::current->{desc} = "map player save";
1475	$_->contr->save for $self->players;	2236	$_->contr->save for $self->players;
1476	};	2237	};
1477		2238
		2239	cf::get_slot 0.02;
		2240
1478	if ($uniq) {	2241	if ($uniq) {
1479	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2242	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480	$self->save_objects ($uniq, cf::IO_UNIQUES);	2243	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1481	} else {	2244	} else {
1482	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1483	}	2246	}
1484	}	2247	}
1485		2248
1486	sub swap_out {	2249	sub swap_out {
1487	my ($self) = @_;	2250	my ($self) = @_;
1488		2251
1489	# save first because save cedes	2252	# save first because save cedes
1490	$self->save;	2253	$self->save;
1491		2254
1492	my $lock = cf::lock_acquire "map_data:" . $self->path;	2255	my $lock = cf::lock_acquire "map_data:$self->{path}";
1493		2256
1494	return if $self->players;	2257	return if $self->players;
1495	return if $self->in_memory != cf::MAP_IN_MEMORY;	2258	return if $self->in_memory != cf::MAP_ACTIVE;
1496	return if $self->{deny_save};	2259	return if $self->{deny_save};
1497		2260
		2261	$self->in_memory (cf::MAP_SWAPPED);
		2262
		2263	$self->deactivate;
		2264	$_->clear_links_to ($self) for values %cf::MAP;
1498	$self->clear;	2265	$self->clear;
1499	$self->in_memory (cf::MAP_SWAPPED);
1500	}	2266	}
1501		2267
1502	sub reset_at {	2268	sub reset_at {
1503	my ($self) = @_;	2269	my ($self) = @_;
1504		2270
1505	# TODO: safety, remove and allow resettable per-player maps	2271	# TODO: safety, remove and allow resettable per-player maps
1506	return 1e99 if $self->{path}{user_rel};
1507	return 1e99 if $self->{deny_reset};	2272	return 1e99 if $self->{deny_reset};
1508		2273
1509	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2274	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1510	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2275	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1511		2276
…		…
1516	my ($self) = @_;	2281	my ($self) = @_;
1517		2282
1518	$self->reset_at <= $cf::RUNTIME	2283	$self->reset_at <= $cf::RUNTIME
1519	}	2284	}
1520		2285
1521	sub unlink_save {
1522	my ($self) = @_;
1523
1524	utf8::encode (my $save = $self->{path}->save_path);
1525	aioreq_pri 3; IO::AIO::aio_unlink $save;
1526	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1527	}
1528
1529	sub rename {
1530	my ($self, $new_path) = @_;
1531
1532	$self->unlink_save;
1533
1534	delete $cf::MAP{$self->path};
1535	$self->{path} = new cf::path $new_path;
1536	$self->path ($self->{path}->as_string);
1537	$cf::MAP{$self->path} = $self;
1538
1539	$self->save;
1540	}
1541
1542	sub reset {	2286	sub reset {
1543	my ($self) = @_;	2287	my ($self) = @_;
1544		2288
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		2290
1547	return if $self->players;	2291	return if $self->players;
1548	return if $self->{path}{user_rel};#d#
1549		2292
1550	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	}
1551		2304
1552	delete $cf::MAP{$self->path};	2305	delete $cf::MAP{$self->path};
1553		2306
		2307	$self->deactivate;
1554	$_->clear_links_to ($self) for values %cf::MAP;	2308	$_->clear_links_to ($self) for values %cf::MAP;
		2309	$self->clear;
1555		2310
1556	$self->unlink_save;	2311	$self->unlink_save;
1557	$self->destroy;	2312	$self->destroy;
1558	}	2313	}
1559		2314
1560	my $nuke_counter = "aaaa";	2315	my $nuke_counter = "aaaa";
1561		2316
1562	sub nuke {	2317	sub nuke {
1563	my ($self) = @_;	2318	my ($self) = @_;
1564		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};
1565	$self->{deny_save} = 1;	2329	$self->{deny_save} = 1;
1566	$self->reset_timeout (1);	2330	$self->reset_timeout (1);
1567	$self->rename ("{nuke}/" . ($nuke_counter++));	2331	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2332
		2333	$cf::MAP{$self->path} = $self;
		2334	}
		2335
1568	$self->reset; # polite request, might not happen	2336	$self->reset; # polite request, might not happen
1569	}	2337	}
1570		2338
1571	sub customise_for {	2339	=item $maps = cf::map::tmp_maps
1572	my ($map, $ob) = @_;
1573		2340
1574	if ($map->per_player) {	2341	Returns an arrayref with all map paths of currently instantiated and saved
1575	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2342	maps. May block.
		2343
		2344	=cut
		2345
		2346	sub tmp_maps() {
1576	}	2347	[
1577		2348	map {
1578	$map	2349	utf8::decode $_;
		2350	/\.map$/
		2351	? normalise $_
		2352	: ()
		2353	} @{ aio_readdir $TMPDIR or [] }
		2354	]
1579	}	2355	}
1580		2356
1581	package cf;	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	]
		2373	}
		2374
		2375	=item cf::map::unique_maps
		2376
		2377	Returns an arrayref of paths of all shared maps that have
		2378	instantiated unique items. May block.
		2379
		2380	=cut
		2381
		2382	sub unique_maps() {
		2383	[
		2384	map {
		2385	utf8::decode $_;
		2386	s/\.map$//; # TODO future compatibility hack
		2387	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2388	? ()
		2389	: normalise $_
		2390	} @{ aio_readdir $UNIQUEDIR or [] }
		2391	]
		2392	}
1582		2393
1583	=back	2394	=back
1584		2395
1585	=head3 cf::object	2396	=head3 cf::object
1586		2397
…		…
1590		2401
1591	=over 4	2402	=over 4
1592		2403
1593	=item $ob->inv_recursive	2404	=item $ob->inv_recursive
1594		2405
1595	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.
1596		2408
1597	=cut	2409	=cut
1598		2410
1599	sub inv_recursive_;	2411	sub inv_recursive_;
1600	sub inv_recursive_ {	2412	sub inv_recursive_ {
…		…
1603		2415
1604	sub inv_recursive {	2416	sub inv_recursive {
1605	inv_recursive_ inv $_[0]	2417	inv_recursive_ inv $_[0]
1606	}	2418	}
1607		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
1608	package cf;	2448	package cf;
1609		2449
1610	=back	2450	=back
1611		2451
1612	=head3 cf::object::player	2452	=head3 cf::object::player
…		…
1618	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>
1619	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
1620	dialogue with the given NPC character.	2460	dialogue with the given NPC character.
1621		2461
1622	=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	};
1623		2477
1624	# rough implementation of a future "reply" method that works	2478	# rough implementation of a future "reply" method that works
1625	# with dialog boxes.	2479	# with dialog boxes.
1626	#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
1627	sub cf::object::player::reply($$$;$) {	2481	sub cf::object::player::reply($$$;$) {
…		…
1629		2483
1630	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2484	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1631		2485
1632	if ($self->{record_replies}) {	2486	if ($self->{record_replies}) {
1633	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2487	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2488
1634	} 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 {
1635	$msg = $npc->name . " says: $msg" if $npc;	2497	$msg = $npc->name . " says: $msg" if $npc;
1636	$self->message ($msg, $flags);	2498	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2499	}
1637	}	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 (@_);
1638	}	2511	}
1639		2512
1640	=item $player_object->may ("access")	2513	=item $player_object->may ("access")
1641		2514
1642	Returns wether the given player is authorized to access resource "access"	2515	Returns wether the given player is authorized to access resource "access"
…		…
1655		2528
1656	=item $player_object->enter_link	2529	=item $player_object->enter_link
1657		2530
1658	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}>).
1659		2532
1660	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
1661	I<MUST> call C<leave_link> as soon as possible, though.	2534	I<MUST> call C<leave_link> as soon as possible, though.
1662		2535
		2536	Will never block.
		2537
1663	=item $player_object->leave_link ($map, $x, $y)	2538	=item $player_object->leave_link ($map, $x, $y)
1664		2539
1665	Moves the player out of the specila link map onto the given map. If the	2540	Moves the player out of the special C<{link}> map onto the specified
1666	map is not valid (or omitted), the player will be moved back to the	2541	map. If the map is not valid (or omitted), the player will be moved back
1667	location he/she was before the call to C<enter_link>, or, if that fails,	2542	to the location he/she was before the call to C<enter_link>, or, if that
1668	to the emergency map position.	2543	fails, to the emergency map position.
1669		2544
1670	Might block.	2545	Might block.
1671		2546
1672	=cut	2547	=cut
		2548
		2549	sub link_map {
		2550	unless ($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	$LINK_MAP
		2557	}
1673		2558
1674	sub cf::object::player::enter_link {	2559	sub cf::object::player::enter_link {
1675	my ($self) = @_;	2560	my ($self) = @_;
1676		2561
1677	$self->deactivate_recursive;	2562	$self->deactivate_recursive;
1678		2563
1679	return if $self->map == $LINK_MAP;	2564	return if UNIVERSAL::isa $self->map, "ext::map_link";
1680		2565
1681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2566	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1682	if $self->map;	2567	if $self->map && $self->map->{path} ne "{link}";
1683		2568
1684	$self->enter_map ($LINK_MAP, 20, 20);	2569	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1685	}	2570	}
1686		2571
1687	sub cf::object::player::leave_link {	2572	sub cf::object::player::leave_link {
1688	my ($self, $map, $x, $y) = @_;	2573	my ($self, $map, $x, $y) = @_;
		2574
		2575	return unless $self->contr->active;
1689		2576
1690	my $link_pos = delete $self->{_link_pos};	2577	my $link_pos = delete $self->{_link_pos};
1691		2578
1692	unless ($map) {	2579	unless ($map) {
1693	# restore original map position	2580	# restore original map position
…		…
1707	# use -1 or undef as default coordinates, not 0, 0	2594	# use -1 or undef as default coordinates, not 0, 0
1708	($x, $y) = ($map->enter_x, $map->enter_y)	2595	($x, $y) = ($map->enter_x, $map->enter_y)
1709	if $x <=0 && $y <= 0;	2596	if $x <=0 && $y <= 0;
1710		2597
1711	$map->load;	2598	$map->load;
		2599	$map->load_neighbours;
1712		2600
1713	return unless $self->contr->active;	2601	return unless $self->contr->active;
1714	$self->activate_recursive;	2602	$self->activate_recursive;
		2603
		2604	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1715	$self->enter_map ($map, $x, $y);	2605	$self->enter_map ($map, $x, $y);
1716	}	2606	}
1717		2607
1718	cf::player->attach (	2608	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1719	on_logout => sub {
1720	my ($pl) = @_;
1721		2609
1722	# abort map switching before logout	2610	Moves the player to the given map-path and coordinates by first freezing
1723	if ($pl->ob->{_link_pos}) {	2611	her, loading and preparing them map, calling the provided $check callback
1724	cf::sync_job {	2612	that has to return the map if sucecssful, and then unfreezes the player on
1725	$pl->ob->leave_link	2613	the new (success) or old (failed) map position. In either case, $done will
1726	};	2614	be called at the end of this process.
1727	}
1728	},
1729	on_login => sub {
1730	my ($pl) = @_;
1731		2615
1732	# try to abort aborted map switching on player login :)
1733	# should happen only on crashes
1734	if ($pl->ob->{_link_pos}) {
1735	$pl->ob->enter_link;
1736	(async {
1737	# we need this sleep as the login has a concurrent enter_exit running
1738	# and this sleep increases chances of the player not ending up in scorn
1739	$pl->ob->reply (undef,
1740	"There was an internal problem at your last logout, "
1741	. "the server will try to bring you to your intended destination in a second.",
1742	cf::NDI_RED);
1743	Coro::Timer::sleep 1;
1744	$pl->ob->leave_link;
1745	})->prio (2);
1746	}
1747	},
1748	);
1749
1750	=item $player_object->goto ($path, $x, $y)
1751
1752	=cut	2616	=cut
		2617
		2618	our $GOTOGEN;
1753		2619
1754	sub cf::object::player::goto {	2620	sub cf::object::player::goto {
1755	my ($self, $path, $x, $y) = @_;	2621	my ($self, $path, $x, $y, $check, $done) = @_;
1756		2622
1757	$path = new cf::path $path;	2623	# do generation counting so two concurrent goto's will be executed in-order
1758	$path ne "/" or Carp::cluck ("oy");#d#	2624	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1759		2625
1760	$self->enter_link;	2626	$self->enter_link;
1761		2627
1762	(async {	2628	(async {
1763	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) {
1764	$map = $map->customise_for ($self) if $map;	2654	$map = $map->customise_for ($self);
1765		2655	$map = $check->($map) if $check && $map;
1766	# warn "entering ", $map->path, " at ($x, $y)\n"	2656	} else {
1767	# if $map;
1768
1769	$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	}
1770		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};
1771	$self->leave_link ($map, $x, $y);	2670	$self->leave_link ($map, $x, $y);
		2671	}
		2672
		2673	$done->() if $done;
1772	})->prio (1);	2674	})->prio (1);
1773	}	2675	}
1774		2676
1775	=item $player_object->enter_exit ($exit_object)	2677	=item $player_object->enter_exit ($exit_object)
1776		2678
…		…
1778		2680
1779	sub parse_random_map_params {	2681	sub parse_random_map_params {
1780	my ($spec) = @_;	2682	my ($spec) = @_;
1781		2683
1782	my $rmp = { # defaults	2684	my $rmp = { # defaults
1783	xsize => 10,	2685	xsize => (cf::rndm 15, 40),
1784	ysize => 10,	2686	ysize => (cf::rndm 15, 40),
		2687	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2688	#layout => string,
1785	};	2689	};
1786		2690
1787	for (split /\n/, $spec) {	2691	for (split /\n/, $spec) {
1788	my ($k, $v) = split /\s+/, $_, 2;	2692	my ($k, $v) = split /\s+/, $_, 2;
1789		2693
…		…
1801	# that depends on the exit object	2705	# that depends on the exit object
1802		2706
1803	my $rmp = parse_random_map_params $exit->msg;	2707	my $rmp = parse_random_map_params $exit->msg;
1804		2708
1805	if ($exit->map) {	2709	if ($exit->map) {
1806	$rmp->{region} = $exit->map->region_name;	2710	$rmp->{region} = $exit->region->name;
1807	$rmp->{origin_map} = $exit->map->path;	2711	$rmp->{origin_map} = $exit->map->path;
1808	$rmp->{origin_x} = $exit->x;	2712	$rmp->{origin_x} = $exit->x;
1809	$rmp->{origin_y} = $exit->y;	2713	$rmp->{origin_y} = $exit->y;
		2714
		2715	$exit->map->touch;
1810	}	2716	}
1811		2717
1812	$rmp->{random_seed} ||= $exit->random_seed;	2718	$rmp->{random_seed} ||= $exit->random_seed;
1813		2719
1814	my $data = cf::to_json $rmp;	2720	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1815	my $md5 = Digest::MD5::md5_hex $data;	2721	my $md5 = Digest::MD5::md5_hex $data;
		2722	my $meta = "$RANDOMDIR/$md5.meta";
1816		2723
1817	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) {
1818	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;
1819		2728
		2729	my $slaying = "?random/$md5";
		2730
		2731	if ($exit->valid) {
1820	$exit->slaying ("?random/$md5");	2732	$exit->slaying ("?random/$md5");
1821	$exit->msg (undef);	2733	$exit->msg (undef);
		2734	}
1822	}	2735	}
1823	}	2736	}
1824		2737
1825	sub cf::object::player::enter_exit {	2738	sub cf::object::player::enter_exit {
1826	my ($self, $exit) = @_;	2739	my ($self, $exit) = @_;
…		…
1828	return unless $self->type == cf::PLAYER;	2741	return unless $self->type == cf::PLAYER;
1829		2742
1830	$self->enter_link;	2743	$self->enter_link;
1831		2744
1832	(async {	2745	(async {
1833	$self->deactivate_recursive; # just to be sure	2746	$Coro::current->{desc} = "enter_exit";
		2747
1834	unless (eval {	2748	unless (eval {
		2749	$self->deactivate_recursive; # just to be sure
		2750
		2751	# random map handling
		2752	{
		2753	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2754
1835	prepare_random_map $exit	2755	prepare_random_map $exit
1836	if $exit->slaying eq "/!";	2756	if $exit->slaying eq "/!";
		2757	}
1837		2758
1838	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2759	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1839	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2760	my $x = $exit->stats->hp;
		2761	my $y = $exit->stats->sp;
1840		2762
		2763	$self->goto ($map, $x, $y);
		2764
		2765	# if exit is damned, update players death & WoR home-position
		2766	$self->contr->savebed ($map, $x, $y)
		2767	if $exit->flag (cf::FLAG_DAMNED);
		2768
1841	1;	2769	1
1842	}) {	2770	}) {
1843	$self->message ("Something went wrong deep within the crossfire server. "	2771	$self->message ("Something went wrong deep within the crossfire server. "
1844	. "I'll try to bring you back to the map you were before. "	2772	. "I'll try to bring you back to the map you were before. "
1845	. "Please report this to the dungeon master",	2773	. "Please report this to the dungeon master!",
1846	cf::NDI_UNIQUE | cf::NDI_RED);	2774	cf::NDI_UNIQUE | cf::NDI_RED);
1847		2775
1848	warn "ERROR in enter_exit: $@";	2776	warn "ERROR in enter_exit: $@";
1849	$self->leave_link;	2777	$self->leave_link;
1850	}	2778	}
1851	})->prio (1);	2779	})->prio (1);
…		…
1864		2792
1865	sub cf::client::send_drawinfo {	2793	sub cf::client::send_drawinfo {
1866	my ($self, $text, $flags) = @_;	2794	my ($self, $text, $flags) = @_;
1867		2795
1868	utf8::encode $text;	2796	utf8::encode $text;
1869	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2797	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1870	}	2798	}
1871		2799
		2800	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2801
		2802	Send a drawinfo or msg packet to the client, formatting the msg for the
		2803	client if neccessary. C<$type> should be a string identifying the type of
		2804	the message, with C<log> being the default. If C<$color> is negative, suppress
		2805	the message unless the client supports the msg packet.
		2806
		2807	=cut
		2808
		2809	# non-persistent channels (usually the info channel)
		2810	our %CHANNEL = (
		2811	"c/identify" => {
		2812	id => "infobox",
		2813	title => "Identify",
		2814	reply => undef,
		2815	tooltip => "Items recently identified",
		2816	},
		2817	"c/examine" => {
		2818	id => "infobox",
		2819	title => "Examine",
		2820	reply => undef,
		2821	tooltip => "Signs and other items you examined",
		2822	},
		2823	"c/book" => {
		2824	id => "infobox",
		2825	title => "Book",
		2826	reply => undef,
		2827	tooltip => "The contents of a note or book",
		2828	},
		2829	"c/lookat" => {
		2830	id => "infobox",
		2831	title => "Look",
		2832	reply => undef,
		2833	tooltip => "What you saw there",
		2834	},
		2835	"c/who" => {
		2836	id => "infobox",
		2837	title => "Players",
		2838	reply => undef,
		2839	tooltip => "Shows players who are currently online",
		2840	},
		2841	"c/body" => {
		2842	id => "infobox",
		2843	title => "Body Parts",
		2844	reply => undef,
		2845	tooltip => "Shows which body parts you posess and are available",
		2846	},
		2847	"c/uptime" => {
		2848	id => "infobox",
		2849	title => "Uptime",
		2850	reply => undef,
		2851	tooltip => "How long the server has been running since last restart",
		2852	},
		2853	"c/mapinfo" => {
		2854	id => "infobox",
		2855	title => "Map Info",
		2856	reply => undef,
		2857	tooltip => "Information related to the maps",
		2858	},
		2859	"c/party" => {
		2860	id => "party",
		2861	title => "Party",
		2862	reply => "gsay ",
		2863	tooltip => "Messages and chat related to your party",
		2864	},
		2865	);
		2866
		2867	sub cf::client::send_msg {
		2868	my ($self, $channel, $msg, $color, @extra) = @_;
		2869
		2870	$msg = $self->pl->expand_cfpod ($msg);
		2871
		2872	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2873
		2874	# check predefined channels, for the benefit of C
		2875	if ($CHANNEL{$channel}) {
		2876	$channel = $CHANNEL{$channel};
		2877
		2878	$self->ext_msg (channel_info => $channel)
		2879	if $self->can_msg;
		2880
		2881	$channel = $channel->{id};
		2882
		2883	} elsif (ref $channel) {
		2884	# send meta info to client, if not yet sent
		2885	unless (exists $self->{channel}{$channel->{id}}) {
		2886	$self->{channel}{$channel->{id}} = $channel;
		2887	$self->ext_msg (channel_info => $channel)
		2888	if $self->can_msg;
		2889	}
		2890
		2891	$channel = $channel->{id};
		2892	}
		2893
		2894	return unless @extra || length $msg;
		2895
		2896	if ($self->can_msg) {
		2897	# default colour, mask it out
		2898	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2899	if $color & cf::NDI_DEF;
		2900
		2901	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2902	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2903	} else {
		2904	if ($color >= 0) {
		2905	# replace some tags by gcfclient-compatible ones
		2906	for ($msg) {
		2907	1 while
		2908	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2909	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2910	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2911	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2912	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2913	}
		2914
		2915	$color &= cf::NDI_COLOR_MASK;
		2916
		2917	utf8::encode $msg;
		2918
		2919	if (0 && $msg =~ /\[/) {
		2920	# COMMAND/INFO
		2921	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2922	} else {
		2923	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2924	$self->send_packet ("drawinfo $color $msg")
		2925	}
		2926	}
		2927	}
		2928	}
		2929
		2930	=item $client->ext_msg ($type, @msg)
		2931
		2932	Sends an ext event to the client.
		2933
		2934	=cut
		2935
		2936	sub cf::client::ext_msg($$@) {
		2937	my ($self, $type, @msg) = @_;
		2938
		2939	if ($self->extcmd == 2) {
		2940	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2941	} elsif ($self->extcmd == 1) { # TODO: remove
		2942	push @msg, msgtype => "event_$type";
		2943	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2944	}
		2945	}
		2946
		2947	=item $client->ext_reply ($msgid, @msg)
		2948
		2949	Sends an ext reply to the client.
		2950
		2951	=cut
		2952
		2953	sub cf::client::ext_reply($$@) {
		2954	my ($self, $id, @msg) = @_;
		2955
		2956	if ($self->extcmd == 2) {
		2957	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2958	} elsif ($self->extcmd == 1) {
		2959	#TODO: version 1, remove
		2960	unshift @msg, msgtype => "reply", msgid => $id;
		2961	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2962	}
		2963	}
1872		2964
1873	=item $success = $client->query ($flags, "text", \&cb)	2965	=item $success = $client->query ($flags, "text", \&cb)
1874		2966
1875	Queues a query to the client, calling the given callback with	2967	Queues a query to the client, calling the given callback with
1876	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2968	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1877	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2969	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1878		2970
1879	Queries can fail, so check the return code. Or don't, as queries will become	2971	Queries can fail, so check the return code. Or don't, as queries will
1880	reliable at some point in the future.	2972	become reliable at some point in the future.
1881		2973
1882	=cut	2974	=cut
1883		2975
1884	sub cf::client::query {	2976	sub cf::client::query {
1885	my ($self, $flags, $text, $cb) = @_;	2977	my ($self, $flags, $text, $cb) = @_;
…		…
1893	utf8::encode $text;	2985	utf8::encode $text;
1894	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2986	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1895		2987
1896	$self->send_packet ($self->{query_queue}[0][0])	2988	$self->send_packet ($self->{query_queue}[0][0])
1897	if @{ $self->{query_queue} } == 1;	2989	if @{ $self->{query_queue} } == 1;
		2990
		2991	1
1898	}	2992	}
1899		2993
1900	cf::client->attach (	2994	cf::client->attach (
		2995	on_connect => sub {
		2996	my ($ns) = @_;
		2997
		2998	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2999	},
1901	on_reply => sub {	3000	on_reply => sub {
1902	my ($ns, $msg) = @_;	3001	my ($ns, $msg) = @_;
1903		3002
1904	# this weird shuffling is so that direct followup queries	3003	# this weird shuffling is so that direct followup queries
1905	# get handled first	3004	# get handled first
1906	my $queue = delete $ns->{query_queue}	3005	my $queue = delete $ns->{query_queue}
1907	or return; # be conservative, not sure how that can happen, but we saw a crash here	3006	or return; # be conservative, not sure how that can happen, but we saw a crash here
1908		3007
1909	(shift @$queue)->[1]->($msg);	3008	(shift @$queue)->[1]->($msg);
		3009	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1910		3010
1911	push @{ $ns->{query_queue} }, @$queue;	3011	push @{ $ns->{query_queue} }, @$queue;
1912		3012
1913	if (@{ $ns->{query_queue} } == @$queue) {	3013	if (@{ $ns->{query_queue} } == @$queue) {
1914	if (@$queue) {	3014	if (@$queue) {
…		…
1916	} else {	3016	} else {
1917	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3017	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1918	}	3018	}
1919	}	3019	}
1920	},	3020	},
		3021	on_exticmd => sub {
		3022	my ($ns, $buf) = @_;
		3023
		3024	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3025
		3026	if (ref $msg) {
		3027	my ($type, $reply, @payload) =
		3028	"ARRAY" eq ref $msg
		3029	? @$msg
		3030	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3031
		3032	my @reply;
		3033
		3034	if (my $cb = $EXTICMD{$type}) {
		3035	@reply = $cb->($ns, @payload);
		3036	}
		3037
		3038	$ns->ext_reply ($reply, @reply)
		3039	if $reply;
		3040
		3041	} else {
		3042	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3043	}
		3044
		3045	cf::override;
		3046	},
1921	);	3047	);
1922		3048
1923	=item $client->async (\&cb)	3049	=item $client->async (\&cb)
1924		3050
1925	Create a new coroutine, running the specified callback. The coroutine will	3051	Create a new coroutine, running the specified callback. The coroutine will
…		…
1966	our $safe = new Safe "safe";	3092	our $safe = new Safe "safe";
1967	our $safe_hole = new Safe::Hole;	3093	our $safe_hole = new Safe::Hole;
1968		3094
1969	$SIG{FPE} = 'IGNORE';	3095	$SIG{FPE} = 'IGNORE';
1970		3096
1971	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3097	$safe->permit_only (Opcode::opset qw(
		3098	:base_core :base_mem :base_orig :base_math
		3099	grepstart grepwhile mapstart mapwhile
		3100	sort time
		3101	));
1972		3102
1973	# here we export the classes and methods available to script code	3103	# here we export the classes and methods available to script code
1974		3104
1975	=pod	3105	=pod
1976		3106
1977	The following fucntions and emthods are available within a safe environment:	3107	The following functions and methods are available within a safe environment:
1978		3108
1979	cf::object contr pay_amount pay_player map	3109	cf::object
		3110	contr pay_amount pay_player map x y force_find force_add destroy
		3111	insert remove name archname title slaying race decrease split
		3112
1980	cf::object::player player	3113	cf::object::player
1981	cf::player peaceful	3114	player
1982	cf::map trigger	3115
		3116	cf::player
		3117	peaceful
		3118
		3119	cf::map
		3120	trigger
1983		3121
1984	=cut	3122	=cut
1985		3123
1986	for (	3124	for (
1987	["cf::object" => qw(contr pay_amount pay_player map)],	3125	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3126	insert remove inv nrof name archname title slaying race
		3127	decrease split destroy)],
1988	["cf::object::player" => qw(player)],	3128	["cf::object::player" => qw(player)],
1989	["cf::player" => qw(peaceful)],	3129	["cf::player" => qw(peaceful)],
1990	["cf::map" => qw(trigger)],	3130	["cf::map" => qw(trigger)],
1991	) {	3131	) {
1992	no strict 'refs';	3132	no strict 'refs';
…		…
2063	=back	3203	=back
2064		3204
2065	=cut	3205	=cut
2066		3206
2067	#############################################################################	3207	#############################################################################
		3208	# the server's init and main functions
2068		3209
2069	=head2 EXTENSION DATABASE SUPPORT	3210	sub load_facedata($) {
		3211	my ($path) = @_;
2070		3212
2071	Crossfire maintains a very simple database for extension use. It can	3213	# HACK to clear player env face cache, we need some signal framework
2072	currently store anything that can be serialised using Storable, which	3214	# for this (global event?)
2073	excludes objects.	3215	%ext::player_env::MUSIC_FACE_CACHE = ();
2074		3216
2075	The parameter C<$family> should best start with the name of the extension	3217	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2076	using it, it should be unique.
2077		3218
2078	=over 4	3219	warn "loading facedata from $path\n";
2079		3220
2080	=item $hashref = cf::db_get $family	3221	my $facedata;
		3222	0 < aio_load $path, $facedata
		3223	or die "$path: $!";
2081		3224
2082	Return a hashref for use by the extension C<$family>, which can be	3225	$facedata = Coro::Storable::thaw $facedata;
2083	modified. After modifications, you have to call C<cf::db_dirty> or
2084	C<cf::db_sync>.
2085		3226
2086	=item $value = cf::db_get $family => $key	3227	$facedata->{version} == 2
		3228	or cf::cleanup "$path: version mismatch, cannot proceed.";
2087		3229
2088	Returns a single value from the database	3230	# patch in the exptable
2089		3231	$facedata->{resource}{"res/exp_table"} = {
2090	=item cf::db_put $family => $hashref	3232	type => FT_RSRC,
2091		3233	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2092	Stores the given family hashref into the database. Updates are delayed, if
2093	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2094
2095	=item cf::db_put $family => $key => $value
2096
2097	Stores the given C<$value> in the family hash. Updates are delayed, if you
2098	want the data to be synced to disk immediately, use C<cf::db_sync>.
2099
2100	=item cf::db_dirty
2101
2102	Marks the database as dirty, to be updated at a later time.
2103
2104	=item cf::db_sync
2105
2106	Immediately write the database to disk I<if it is dirty>.
2107
2108	=cut
2109
2110	our $DB;
2111
2112	{
2113	my $path = cf::localdir . "/database.pst";
2114
2115	sub db_load() {
2116	$DB = stat $path ? Storable::retrieve $path : { };
2117	}
2118
2119	my $pid;
2120
2121	sub db_save() {
2122	waitpid $pid, 0 if $pid;
2123	if (0 == ($pid = fork)) {
2124	$DB->{_meta}{version} = 1;
2125	Storable::nstore $DB, "$path~";
2126	rename "$path~", $path;
2127	cf::_exit 0 if defined $pid;
2128	}
2129	}
2130
2131	my $dirty;
2132
2133	sub db_sync() {
2134	db_save if $dirty;
2135	undef $dirty;
2136	}
2137
2138	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2139	db_sync;
2140	});	3234	};
		3235	cf::cede_to_tick;
2141		3236
2142	sub db_dirty() {
2143	$dirty = 1;
2144	$idle->start;
2145	}	3237	{
		3238	my $faces = $facedata->{faceinfo};
2146		3239
2147	sub db_get($;$) {	3240	while (my ($face, $info) = each %$faces) {
2148	@_ >= 2	3241	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2149	? $DB->{$_[0]}{$_[1]}
2150	: ($DB->{$_[0]} ||= { })
2151	}
2152		3242
2153	sub db_put($$;$) {	3243	cf::face::set_visibility $idx, $info->{visibility};
2154	if (@_ >= 3) {	3244	cf::face::set_magicmap $idx, $info->{magicmap};
2155	$DB->{$_[0]}{$_[1]} = $_[2];	3245	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2156	} else {	3246	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2157	$DB->{$_[0]} = $_[1];
2158	}
2159	db_dirty;
2160	}
2161		3247
2162	cf::global->attach (	3248	cf::cede_to_tick;
2163	prio => 10000,
2164	on_cleanup => sub {
2165	db_sync;
2166	},	3249	}
2167	);
2168	}
2169		3250
2170	#############################################################################	3251	while (my ($face, $info) = each %$faces) {
2171	# the server's main()	3252	next unless $info->{smooth};
2172		3253
2173	sub cfg_load {	3254	my $idx = cf::face::find $face
		3255	or next;
		3256
		3257	if (my $smooth = cf::face::find $info->{smooth}) {
		3258	cf::face::set_smooth $idx, $smooth;
		3259	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3260	} else {
		3261	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3262	}
		3263
		3264	cf::cede_to_tick;
		3265	}
		3266	}
		3267
		3268	{
		3269	my $anims = $facedata->{animinfo};
		3270
		3271	while (my ($anim, $info) = each %$anims) {
		3272	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3273	cf::cede_to_tick;
		3274	}
		3275
		3276	cf::anim::invalidate_all; # d'oh
		3277	}
		3278
		3279	{
		3280	# TODO: for gcfclient pleasure, we should give resources
		3281	# that gcfclient doesn't grok a >10000 face index.
		3282	my $res = $facedata->{resource};
		3283
		3284	while (my ($name, $info) = each %$res) {
		3285	if (defined $info->{type}) {
		3286	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3287	my $data;
		3288
		3289	if ($info->{type} & 1) {
		3290	# prepend meta info
		3291
		3292	my $meta = $enc->encode ({
		3293	name => $name,
		3294	%{ $info->{meta} || {} },
		3295	});
		3296
		3297	$data = pack "(w/a*)*", $meta, $info->{data};
		3298	} else {
		3299	$data = $info->{data};
		3300	}
		3301
		3302	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3303	cf::face::set_type $idx, $info->{type};
		3304	} else {
		3305	$RESOURCE{$name} = $info;
		3306	}
		3307
		3308	cf::cede_to_tick;
		3309	}
		3310	}
		3311
		3312	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3313
		3314	1
		3315	}
		3316
		3317	cf::global->attach (on_resource_update => sub {
		3318	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3319	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3320
		3321	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3322	my $sound = $soundconf->{compat}[$_]
		3323	or next;
		3324
		3325	my $face = cf::face::find "sound/$sound->[1]";
		3326	cf::sound::set $sound->[0] => $face;
		3327	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3328	}
		3329
		3330	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3331	my $face = cf::face::find "sound/$v";
		3332	cf::sound::set $k => $face;
		3333	}
		3334	}
		3335	});
		3336
		3337	register_exticmd fx_want => sub {
		3338	my ($ns, $want) = @_;
		3339
		3340	while (my ($k, $v) = each %$want) {
		3341	$ns->fx_want ($k, $v);
		3342	}
		3343	};
		3344
		3345	sub load_resource_file($) {
		3346	my $guard = lock_acquire "load_resource_file";
		3347
		3348	my $status = load_resource_file_ $_[0];
		3349	get_slot 0.1, 100;
		3350	cf::arch::commit_load;
		3351
		3352	$status
		3353	}
		3354
		3355	sub reload_regions {
		3356	# HACK to clear player env face cache, we need some signal framework
		3357	# for this (global event?)
		3358	%ext::player_env::MUSIC_FACE_CACHE = ();
		3359
		3360	load_resource_file "$MAPDIR/regions"
		3361	or die "unable to load regions file\n";
		3362
		3363	for (cf::region::list) {
		3364	$_->{match} = qr/$_->{match}/
		3365	if exists $_->{match};
		3366	}
		3367	}
		3368
		3369	sub reload_facedata {
		3370	load_facedata "$DATADIR/facedata"
		3371	or die "unable to load facedata\n";
		3372	}
		3373
		3374	sub reload_archetypes {
		3375	load_resource_file "$DATADIR/archetypes"
		3376	or die "unable to load archetypes\n";
		3377	}
		3378
		3379	sub reload_treasures {
		3380	load_resource_file "$DATADIR/treasures"
		3381	or die "unable to load treasurelists\n";
		3382	}
		3383
		3384	sub reload_resources {
		3385	warn "reloading resource files...\n";
		3386
		3387	reload_facedata;
		3388	reload_archetypes;
		3389	reload_regions;
		3390	reload_treasures;
		3391
		3392	warn "finished reloading resource files\n";
		3393	}
		3394
		3395	sub init {
		3396	my $guard = freeze_mainloop;
		3397
		3398	reload_resources;
		3399	}
		3400
		3401	sub reload_config {
2174	open my $fh, "<:utf8", cf::confdir . "/config"	3402	open my $fh, "<:utf8", "$CONFDIR/config"
2175	or return;	3403	or return;
2176		3404
2177	local $/;	3405	local $/;
2178	*CFG = YAML::Syck::Load <$fh>;	3406	*CFG = YAML::Load <$fh>;
2179		3407
2180	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3408	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2181		3409
2182	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3410	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2183	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3411	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2193		3421
2194	sub main {	3422	sub main {
2195	# we must not ever block the main coroutine	3423	# we must not ever block the main coroutine
2196	local $Coro::idle = sub {	3424	local $Coro::idle = sub {
2197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3425	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2198	async { Event::one_event };	3426	(async {
		3427	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3428	EV::loop EV::LOOP_ONESHOT;
		3429	})->prio (Coro::PRIO_MAX);
2199	};	3430	};
2200		3431
2201	cfg_load;	3432	{
2202	db_load;	3433	my $guard = freeze_mainloop;
		3434	reload_config;
		3435	db_init;
2203	load_extensions;	3436	load_extensions;
		3437
		3438	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3439	evthread_start IO::AIO::poll_fileno;
		3440	}
		3441
2204	Event::loop;	3442	EV::loop;
2205	}	3443	}
2206		3444
2207	#############################################################################	3445	#############################################################################
2208	# initialisation and cleanup	3446	# initialisation and cleanup
2209		3447
2210	# install some emergency cleanup handlers	3448	# install some emergency cleanup handlers
2211	BEGIN {	3449	BEGIN {
		3450	our %SIGWATCHER = ();
2212	for my $signal (qw(INT HUP TERM)) {	3451	for my $signal (qw(INT HUP TERM)) {
2213	Event->signal (	3452	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2214	data => WF_AUTOCANCEL,
2215	signal => $signal,
2216	cb => sub {
2217	cf::cleanup "SIG$signal";	3453	cf::cleanup "SIG$signal";
2218	},
2219	);	3454	};
		3455	}
		3456	}
		3457
		3458	sub write_runtime_sync {
		3459	my $runtime = "$LOCALDIR/runtime";
		3460
		3461	# first touch the runtime file to show we are still running:
		3462	# the fsync below can take a very very long time.
		3463
		3464	IO::AIO::aio_utime $runtime, undef, undef;
		3465
		3466	my $guard = cf::lock_acquire "write_runtime";
		3467
		3468	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3469	or return;
		3470
		3471	my $value = $cf::RUNTIME + 90 + 10;
		3472	# 10 is the runtime save interval, for a monotonic clock
		3473	# 60 allows for the watchdog to kill the server.
		3474
		3475	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3476	and return;
		3477
		3478	# always fsync - this file is important
		3479	aio_fsync $fh
		3480	and return;
		3481
		3482	# touch it again to show we are up-to-date
		3483	aio_utime $fh, undef, undef;
		3484
		3485	close $fh
		3486	or return;
		3487
		3488	aio_rename "$runtime~", $runtime
		3489	and return;
		3490
		3491	warn "runtime file written.\n";
		3492
2220	}	3493	1
		3494	}
		3495
		3496	our $uuid_lock;
		3497	our $uuid_skip;
		3498
		3499	sub write_uuid_sync($) {
		3500	$uuid_skip ||= $_[0];
		3501
		3502	return if $uuid_lock;
		3503	local $uuid_lock = 1;
		3504
		3505	my $uuid = "$LOCALDIR/uuid";
		3506
		3507	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3508	or return;
		3509
		3510	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3511	$uuid_skip = 0;
		3512
		3513	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3514	and return;
		3515
		3516	# always fsync - this file is important
		3517	aio_fsync $fh
		3518	and return;
		3519
		3520	close $fh
		3521	or return;
		3522
		3523	aio_rename "$uuid~", $uuid
		3524	and return;
		3525
		3526	warn "uuid file written ($value).\n";
		3527
		3528	1
		3529
		3530	}
		3531
		3532	sub write_uuid($$) {
		3533	my ($skip, $sync) = @_;
		3534
		3535	$sync ? write_uuid_sync $skip
		3536	: async { write_uuid_sync $skip };
2221	}	3537	}
2222		3538
2223	sub emergency_save() {	3539	sub emergency_save() {
2224	my $freeze_guard = cf::freeze_mainloop;	3540	my $freeze_guard = cf::freeze_mainloop;
2225		3541
2226	warn "enter emergency perl save\n";	3542	warn "enter emergency perl save\n";
2227		3543
2228	cf::sync_job {	3544	cf::sync_job {
2229	# use a peculiar iteration method to avoid tripping on perl	3545	# use a peculiar iteration method to avoid tripping on perl
2230	# refcount bugs in for. also avoids problems with players	3546	# refcount bugs in for. also avoids problems with players
2231	# and maps saved/Destroyed asynchronously.	3547	# and maps saved/destroyed asynchronously.
2232	warn "begin emergency player save\n";	3548	warn "begin emergency player save\n";
2233	for my $login (keys %cf::PLAYER) {	3549	for my $login (keys %cf::PLAYER) {
2234	my $pl = $cf::PLAYER{$login} or next;	3550	my $pl = $cf::PLAYER{$login} or next;
2235	$pl->valid or next;	3551	$pl->valid or next;
		3552	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2236	$pl->save;	3553	$pl->save;
2237	}	3554	}
2238	warn "end emergency player save\n";	3555	warn "end emergency player save\n";
2239		3556
2240	warn "begin emergency map save\n";	3557	warn "begin emergency map save\n";
…		…
2242	my $map = $cf::MAP{$path} or next;	3559	my $map = $cf::MAP{$path} or next;
2243	$map->valid or next;	3560	$map->valid or next;
2244	$map->save;	3561	$map->save;
2245	}	3562	}
2246	warn "end emergency map save\n";	3563	warn "end emergency map save\n";
		3564
		3565	warn "begin emergency database checkpoint\n";
		3566	BDB::db_env_txn_checkpoint $DB_ENV;
		3567	warn "end emergency database checkpoint\n";
		3568
		3569	warn "begin write uuid\n";
		3570	write_uuid_sync 1;
		3571	warn "end write uuid\n";
2247	};	3572	};
2248		3573
2249	warn "leave emergency perl save\n";	3574	warn "leave emergency perl save\n";
2250	}	3575	}
2251		3576
		3577	sub post_cleanup {
		3578	my ($make_core) = @_;
		3579
		3580	warn Carp::longmess "post_cleanup backtrace"
		3581	if $make_core;
		3582	}
		3583
2252	sub reload() {	3584	sub do_reload_perl() {
2253	# can/must only be called in main	3585	# can/must only be called in main
2254	if ($Coro::current != $Coro::main) {	3586	if ($Coro::current != $Coro::main) {
2255	warn "can only reload from main coroutine\n";	3587	warn "can only reload from main coroutine";
2256	return;	3588	return;
2257	}	3589	}
2258		3590
2259	warn "reloading...";	3591	warn "reloading...";
2260		3592
2261	my $guard = freeze_mainloop;	3593	warn "entering sync_job";
		3594
		3595	cf::sync_job {
		3596	cf::write_runtime_sync; # external watchdog should not bark
2262	cf::emergency_save;	3597	cf::emergency_save;
		3598	cf::write_runtime_sync; # external watchdog should not bark
2263		3599
2264	eval {	3600	warn "syncing database to disk";
		3601	BDB::db_env_txn_checkpoint $DB_ENV;
		3602
2265	# if anything goes wrong in here, we should simply crash as we already saved	3603	# if anything goes wrong in here, we should simply crash as we already saved
2266		3604
2267	# cancel all watchers	3605	warn "flushing outstanding aio requests";
2268	for (Event::all_watchers) {	3606	for (;;) {
2269	$_->cancel if $_->data & WF_AUTOCANCEL;	3607	BDB::flush;
		3608	IO::AIO::flush;
		3609	Coro::cede_notself;
		3610	last unless IO::AIO::nreqs || BDB::nreqs;
		3611	warn "iterate...";
2270	}	3612	}
2271		3613
		3614	++$RELOAD;
		3615
2272	# cancel all extension coros	3616	warn "cancelling all extension coros";
2273	$_->cancel for values %EXT_CORO;	3617	$_->cancel for values %EXT_CORO;
2274	%EXT_CORO = ();	3618	%EXT_CORO = ();
2275		3619
2276	# unload all extensions	3620	warn "removing commands";
2277	for (@exts) {	3621	%COMMAND = ();
		3622
		3623	warn "removing ext/exti commands";
		3624	%EXTCMD = ();
		3625	%EXTICMD = ();
		3626
		3627	warn "unloading/nuking all extensions";
		3628	for my $pkg (@EXTS) {
2278	warn "unloading <$_>";	3629	warn "... unloading $pkg";
2279	unload_extension $_;	3630
		3631	if (my $cb = $pkg->can ("unload")) {
		3632	eval {
		3633	$cb->($pkg);
		3634	1
		3635	} or warn "$pkg unloaded, but with errors: $@";
2280	}	3636	}
2281		3637
		3638	warn "... nuking $pkg";
		3639	Symbol::delete_package $pkg;
		3640	}
		3641
2282	# unload all modules loaded from $LIBDIR	3642	warn "unloading all perl modules loaded from $LIBDIR";
2283	while (my ($k, $v) = each %INC) {	3643	while (my ($k, $v) = each %INC) {
2284	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3644	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2285		3645
2286	warn "removing <$k>";	3646	warn "... unloading $k";
2287	delete $INC{$k};	3647	delete $INC{$k};
2288		3648
2289	$k =~ s/\.pm$//;	3649	$k =~ s/\.pm$//;
2290	$k =~ s/\//::/g;	3650	$k =~ s/\//::/g;
2291		3651
…		…
2294	}	3654	}
2295		3655
2296	Symbol::delete_package $k;	3656	Symbol::delete_package $k;
2297	}	3657	}
2298		3658
2299	# sync database to disk
2300	cf::db_sync;
2301	IO::AIO::flush;
2302
2303	# get rid of safe::, as good as possible	3659	warn "getting rid of safe::, as good as possible";
2304	Symbol::delete_package "safe::$_"	3660	Symbol::delete_package "safe::$_"
2305	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3661	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2306		3662
2307	# remove register_script_function callbacks
2308	# TODO
2309
2310	# unload cf.pm "a bit"	3663	warn "unloading cf.pm \"a bit\"";
2311	delete $INC{"cf.pm"};	3664	delete $INC{"cf.pm"};
		3665	delete $INC{"cf/pod.pm"};
2312		3666
2313	# don't, removes xs symbols, too,	3667	# don't, removes xs symbols, too,
2314	# and global variables created in xs	3668	# and global variables created in xs
2315	#Symbol::delete_package __PACKAGE__;	3669	#Symbol::delete_package __PACKAGE__;
2316		3670
2317	# reload cf.pm	3671	warn "unload completed, starting to reload now";
		3672
2318	warn "reloading cf.pm";	3673	warn "reloading cf.pm";
2319	require cf;	3674	require cf;
2320	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3675	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2321		3676
2322	# load config and database again	3677	warn "loading config and database again";
2323	cf::cfg_load;	3678	cf::reload_config;
2324	cf::db_load;
2325		3679
2326	# load extensions
2327	warn "load extensions";	3680	warn "loading extensions";
2328	cf::load_extensions;	3681	cf::load_extensions;
2329		3682
2330	# reattach attachments to objects	3683	warn "reattaching attachments to objects/players";
2331	warn "reattach";	3684	_global_reattach; # objects, sockets
2332	_global_reattach;	3685	warn "reattaching attachments to maps";
2333	reattach $_ for values %MAP;	3686	reattach $_ for values %MAP;
		3687	warn "reattaching attachments to players";
		3688	reattach $_ for values %PLAYER;
		3689
		3690	warn "leaving sync_job";
		3691
		3692	1
		3693	} or do {
		3694	warn $@;
		3695	cf::cleanup "error while reloading, exiting.";
2334	};	3696	};
2335		3697
2336	if ($@) {	3698	warn "reloaded";
2337	warn $@;
2338	warn "error while reloading, exiting.";
2339	exit 1;
2340	}
2341
2342	warn "reloaded successfully";
2343	};	3699	};
2344		3700
2345	#############################################################################	3701	our $RELOAD_WATCHER; # used only during reload
2346		3702
2347	unless ($LINK_MAP) {	3703	sub reload_perl() {
2348	$LINK_MAP = cf::map::new;	3704	# doing reload synchronously and two reloads happen back-to-back,
		3705	# coro crashes during coro_state_free->destroy here.
2349		3706
2350	$LINK_MAP->width (41);	3707	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2351	$LINK_MAP->height (41);	3708	do_reload_perl;
2352	$LINK_MAP->alloc;	3709	undef $RELOAD_WATCHER;
2353	$LINK_MAP->path ("{link}");	3710	};
2354	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2355	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2356
2357	# dirty hack because... archetypes are not yet loaded
2358	Event->timer (
2359	after => 10,
2360	cb => sub {
2361	$_[0]->w->cancel;
2362
2363	# provide some exits "home"
2364	my $exit = cf::object::new "exit";
2365
2366	$exit->slaying ($EMERGENCY_POSITION->[0]);
2367	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2368	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2369
2370	$LINK_MAP->insert ($exit->clone, 19, 19);
2371	$LINK_MAP->insert ($exit->clone, 19, 20);
2372	$LINK_MAP->insert ($exit->clone, 19, 21);
2373	$LINK_MAP->insert ($exit->clone, 20, 19);
2374	$LINK_MAP->insert ($exit->clone, 20, 21);
2375	$LINK_MAP->insert ($exit->clone, 21, 19);
2376	$LINK_MAP->insert ($exit->clone, 21, 20);
2377	$LINK_MAP->insert ($exit->clone, 21, 21);
2378
2379	$exit->destroy;
2380	});
2381
2382	$LINK_MAP->{deny_save} = 1;
2383	$LINK_MAP->{deny_reset} = 1;
2384
2385	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2386	}	3711	}
2387
2388	register "<global>", __PACKAGE__;
2389		3712
2390	register_command "reload" => sub {	3713	register_command "reload" => sub {
2391	my ($who, $arg) = @_;	3714	my ($who, $arg) = @_;
2392		3715
2393	if ($who->flag (FLAG_WIZ)) {	3716	if ($who->flag (FLAG_WIZ)) {
2394	$who->message ("start of reload.");
2395	reload;
2396	$who->message ("end of reload.");	3717	$who->message ("reloading server.");
		3718	async {
		3719	$Coro::current->{desc} = "perl_reload";
		3720	reload_perl;
		3721	};
2397	}	3722	}
2398	};	3723	};
2399		3724
2400	unshift @INC, $LIBDIR;	3725	unshift @INC, $LIBDIR;
2401		3726
2402	$TICK_WATCHER = Event->timer (	3727	my $bug_warning = 0;
2403	reentrant => 0,	3728
2404	prio => 0,	3729	our @WAIT_FOR_TICK;
2405	at => $NEXT_TICK || $TICK,	3730	our @WAIT_FOR_TICK_BEGIN;
2406	data => WF_AUTOCANCEL,	3731
2407	cb => sub {	3732	sub wait_for_tick {
		3733	return if tick_inhibit || $Coro::current == $Coro::main;
		3734
		3735	my $signal = new Coro::Signal;
		3736	push @WAIT_FOR_TICK, $signal;
		3737	$signal->wait;
		3738	}
		3739
		3740	sub wait_for_tick_begin {
		3741	return if tick_inhibit || $Coro::current == $Coro::main;
		3742
		3743	my $signal = new Coro::Signal;
		3744	push @WAIT_FOR_TICK_BEGIN, $signal;
		3745	$signal->wait;
		3746	}
		3747
		3748	sub tick {
		3749	if ($Coro::current != $Coro::main) {
		3750	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3751	unless ++$bug_warning > 10;
		3752	return;
		3753	}
		3754
2408	cf::server_tick; # one server iteration	3755	cf::server_tick; # one server iteration
2409	$RUNTIME += $TICK;
2410	$NEXT_TICK += $TICK;
2411		3756
2412	$WAIT_FOR_TICK->broadcast;	3757	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2413	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3758	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2414		3759	Coro::async_pool {
2415	# if we are delayed by four ticks or more, skip them all	3760	$Coro::current->{desc} = "runtime saver";
2416	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2417
2418	$TICK_WATCHER->at ($NEXT_TICK);
2419	$TICK_WATCHER->start;
2420	},
2421	);
2422
2423	IO::AIO::max_poll_time $TICK * 0.2;
2424
2425	Event->io (
2426	fd => IO::AIO::poll_fileno,
2427	poll => 'r',
2428	prio => 5,
2429	data => WF_AUTOCANCEL,
2430	cb => \&IO::AIO::poll_cb,
2431	);
2432
2433	Event->timer (
2434	data => WF_AUTOCANCEL,
2435	after => 0,
2436	interval => 10,
2437	cb => sub {
2438	(Coro::unblock_sub {
2439	write_runtime	3761	write_runtime_sync
2440	or warn "ERROR: unable to write runtime file: $!";	3762	or warn "ERROR: unable to write runtime file: $!";
2441	})->();	3763	};
2442	},	3764	}
2443	);	3765
		3766	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3767	$sig->send;
		3768	}
		3769	while (my $sig = shift @WAIT_FOR_TICK) {
		3770	$sig->send;
		3771	}
		3772
		3773	$LOAD = ($NOW - $TICK_START) / $TICK;
		3774	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3775
		3776	if (0) {
		3777	if ($NEXT_TICK) {
		3778	my $jitter = $TICK_START - $NEXT_TICK;
		3779	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3780	warn "jitter $JITTER\n";#d#
		3781	}
		3782	}
		3783	}
		3784
		3785	{
		3786	# configure BDB
		3787
		3788	BDB::min_parallel 8;
		3789	BDB::max_poll_reqs $TICK * 0.1;
		3790	$Coro::BDB::WATCHER->priority (1);
		3791
		3792	unless ($DB_ENV) {
		3793	$DB_ENV = BDB::db_env_create;
		3794	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3795	| BDB::LOG_AUTOREMOVE, 1);
		3796	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3797	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3798
		3799	cf::sync_job {
		3800	eval {
		3801	BDB::db_env_open
		3802	$DB_ENV,
		3803	$BDBDIR,
		3804	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3805	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3806	0666;
		3807
		3808	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3809	};
		3810
		3811	cf::cleanup "db_env_open(db): $@" if $@;
		3812	};
		3813	}
		3814
		3815	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3816	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3817	};
		3818	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3819	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3820	};
		3821	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3822	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3823	};
		3824	}
		3825
		3826	{
		3827	# configure IO::AIO
		3828
		3829	IO::AIO::min_parallel 8;
		3830	IO::AIO::max_poll_time $TICK * 0.1;
		3831	$Coro::AIO::WATCHER->priority (1);
		3832	}
		3833
		3834	my $_log_backtrace;
		3835
		3836	sub _log_backtrace {
		3837	my ($msg, @addr) = @_;
		3838
		3839	$msg =~ s/\n//;
		3840
		3841	# limit the # of concurrent backtraces
		3842	if ($_log_backtrace < 2) {
		3843	++$_log_backtrace;
		3844	async {
		3845	$Coro::current->{desc} = "abt $msg";
		3846
		3847	my @bt = fork_call {
		3848	@addr = map { sprintf "%x", $_ } @addr;
		3849	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3850	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3851	or die "addr2line: $!";
		3852
		3853	my @funcs;
		3854	my @res = <$fh>;
		3855	chomp for @res;
		3856	while (@res) {
		3857	my ($func, $line) = splice @res, 0, 2, ();
		3858	push @funcs, "[$func] $line";
		3859	}
		3860
		3861	@funcs
		3862	};
		3863
		3864	LOG llevInfo, "[ABT] $msg\n";
		3865	LOG llevInfo, "[ABT] $_\n" for @bt;
		3866	--$_log_backtrace;
		3867	};
		3868	} else {
		3869	LOG llevInfo, "[ABT] $msg\n";
		3870	LOG llevInfo, "[ABT] [suppressed]\n";
		3871	}
		3872	}
		3873
		3874	# load additional modules
		3875	use cf::pod;
2444		3876
2445	END { cf::emergency_save }	3877	END { cf::emergency_save }
2446		3878
2447	1	3879	1
2448		3880

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