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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.426 by root, Thu Apr 24 04:40:31 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
3	use utf8;	24	use utf8;
4	use strict;	25	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV 3.2;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro 3.3 ();	36	use Coro 4.50 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::EV;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
18	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
19		47
		48	use JSON::XS 2.01 ();
		49	use BDB ();
		50	use Data::Dumper;
20	use Digest::MD5;	51	use Digest::MD5;
21	use Fcntl;	52	use Fcntl;
		53	use YAML ();
22	use IO::AIO 2.31 ();	54	use IO::AIO 2.51 ();
23	use YAML::Syck ();
24	use Time::HiRes;	55	use Time::HiRes;
		56	use Compress::LZF;
		57	use Digest::MD5 ();
25		58
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	59	# configure various modules to our taste
27		60	#
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	61	$Storable::canonical = 1; # reduce rsync transfers
29	$YAML::Syck::ImplicitUnicode = 1;	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
30		64
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		66
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		68
35	our %COMMAND = ();	69	our %COMMAND = ();
36	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
		71
		72	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
		75	our %EXT_CORO = (); # coroutines bound to extensions
		76	our %EXT_MAP = (); # pluggable maps
38		77
		78	our $RELOAD; # number of reloads so far
39	our @EVENT;	79	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		80
42	our $TICK = MAX_TIME * 1e-6;	81	our $CONFDIR = confdir;
		82	our $DATADIR = datadir;
		83	our $LIBDIR = "$DATADIR/ext";
		84	our $PODDIR = "$DATADIR/pod";
		85	our $MAPDIR = "$DATADIR/" . mapdir;
		86	our $LOCALDIR = localdir;
		87	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		88	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		89	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		90	our $RANDOMDIR = "$LOCALDIR/random";
		91	our $BDBDIR = "$LOCALDIR/db";
		92	our %RESOURCE;
		93
		94	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	97	our $NEXT_TICK;
45	our $NOW;	98	our $USE_FSYNC = 1; # use fsync to write maps - default off
		99
		100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
		104	our $DB_ENV;
46		105
47	our %CFG;	106	our %CFG;
48		107
49	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
51		111
52	our %MAP; # all maps	112	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	113	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	114	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	115
		116	# used to convert map paths into valid unix filenames by replacing / by ∕
		117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		118
		119	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		120	our $LOADAVG; # same thing, but with alpha-smoothing
		121	our $JITTER; # average jitter
		122	our $TICK_START; # for load detecting purposes
56		123
57	binmode STDOUT;	124	binmode STDOUT;
58	binmode STDERR;	125	binmode STDERR;
59		126
60	# read virtual server time, if available	127	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
65	}	132	}
66		133
67	mkdir cf::localdir;	134	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		136
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
		138
		139	sub cf::map::normalise;
76		140
77	#############################################################################	141	#############################################################################
78		142
79	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
80		144
…		…
87	=item $cf::RUNTIME	151	=item $cf::RUNTIME
88		152
89	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
90	every server tick.	154	every server tick.
91		155
92	=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
93		159
94	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		164
97	=item $cf::NOW	165	=item $cf::NOW
98		166
99	The time of the last (current) server tick.	167	The time of the last (current) server tick.
100		168
101	=item $cf::TICK	169	=item $cf::TICK
102		170
103	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
104		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
105	=item %cf::CFG	183	=item %cf::CFG
106		184
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	186	from wherever your confdir points to.
		187
		188	=item cf::wait_for_tick, cf::wait_for_tick_begin
		189
		190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		191	returns directly I<after> the tick processing (and consequently, can only wake one process
		192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		193
		194	=item @cf::INVOKE_RESULTS
		195
		196	This array contains the results of the last C<invoke ()> call. When
		197	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		198	that call.
109		199
110	=back	200	=back
111		201
112	=cut	202	=cut
113		203
114	BEGIN {	204	BEGIN {
115	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	206	my $msg = join "", @_;
117	utf8::encode $msg;
118		207
119	$msg .= "\n"	208	$msg .= "\n"
120	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
121		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
122	LOG llevError, "cfperl: $msg";	213	LOG llevError, $msg;
123	};	214	};
124	}	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#?
125		231
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		239
133	# 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
134	# within the Safe compartment.	241	# within the Safe compartment.
135	for my $pkg (qw(	242	for my $pkg (qw(
136	cf::global cf::attachable	243	cf::global cf::attachable
…		…
141	)) {	248	)) {
142	no strict 'refs';	249	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	251	}
145		252
146	$Event::DIED = sub {	253	$EV::DIED = sub {
147	warn "error in event callback: @_";	254	warn "error in event callback: @_";
148	};	255	};
149		256
150	my %ext_pkg;	257	#############################################################################
151	my @exts;
152	my @hook;
153		258
154	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
155		260
156	=over 4	261	=over 4
157		262
158	=cut	263	=item dumpval $ref
159		264
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	265	=cut
161		266
		267	sub dumpval {
		268	eval {
		269	local $SIG{__DIE__};
		270	my $d;
		271	if (1) {
		272	$d = new Data::Dumper([$_[0]], ["*var"]);
		273	$d->Terse(1);
		274	$d->Indent(2);
		275	$d->Quotekeys(0);
		276	$d->Useqq(1);
		277	#$d->Bless(...);
		278	$d->Seen($_[1]) if @_ > 1;
		279	$d = $d->Dump();
		280	}
		281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		282	$d
		283	} || "[unable to dump $_[0]: '$@']";
		284	}
		285
162	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
163		287
164	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
165		289
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
174		291
175	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
176		293
177	=cut	294	=cut
178		295
179	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
181	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
182	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
183		300
184	=item cf::lock_wait $string	301	=item cf::lock_wait $string
185		302
186	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
187		304
…		…
190	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
191	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,
192	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
193	returned.	310	returned.
194		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
195	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
196	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
197		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
198	=cut	322	=cut
199		323
200	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
201		326
202	sub lock_wait($) {	327	sub lock_wait($) {
203	my ($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#
204		334
205	# wait for lock, if any	335	# wait for lock, if any
206	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	338	Coro::schedule;
…		…
214		344
215	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
216	lock_wait $key;	346	lock_wait $key;
217		347
218	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
219		350
220	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
223	}	355	}
224	}	356	}
225		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
226	sub freeze_mainloop {	364	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
228		366
229	my $guard = Coro::guard { $TICK_WATCHER->start };	367	Coro::guard \&tick_inhibit_dec;
230	$TICK_WATCHER->stop;	368	}
231	$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	$sig->wait;
232	}	443	}
233		444
234	=item cf::async { BLOCK }	445	=item cf::async { BLOCK }
235		446
236	Currently the same as Coro::async_pool, meaning you cannot use	447	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		452
242	BEGIN { *async = \&Coro::async_pool }	453	BEGIN { *async = \&Coro::async_pool }
243		454
244	=item cf::sync_job { BLOCK }	455	=item cf::sync_job { BLOCK }
245		456
246	The design of crossfire+ requires that the main coro ($Coro::main) is	457	The design of Deliantra requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	458	is always able to handle events or runnable, as Deliantra is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	459	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		460	acceptable.
249		461
250	If it must be done, put the blocking parts into C<sync_job>. This will run	462	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	463	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	464	server will be frozen during this time, so the block should either finish
253	fast or be very important.	465	fast or be very important.
…		…
256		468
257	sub sync_job(&) {	469	sub sync_job(&) {
258	my ($job) = @_;	470	my ($job) = @_;
259		471
260	if ($Coro::current == $Coro::main) {	472	if ($Coro::current == $Coro::main) {
		473	my $time = EV::time;
		474
261	# this is the main coro, too bad, we have to block	475	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	476	# till the operation succeeds, freezing the server :/
263		477
264	# TODO: use suspend/resume instead	478	LOG llevError, Carp::longmess "sync job";#d#
265	# (but this is cancel-safe)	479
266	my $freeze_guard = freeze_mainloop;	480	my $freeze_guard = freeze_mainloop;
267		481
268	my $busy = 1;	482	my $busy = 1;
269	my @res;	483	my @res;
270		484
271	(async {	485	(async {
		486	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	487	@res = eval { $job->() };
273	warn $@ if $@;	488	warn $@ if $@;
274	undef $busy;	489	undef $busy;
275	})->prio (Coro::PRIO_MAX);	490	})->prio (Coro::PRIO_MAX);
276		491
277	while ($busy) {	492	while ($busy) {
278	unless (Coro::cede) {	493	if (Coro::nready) {
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;	494	Coro::cede_notself;
		495	} else {
		496	EV::loop EV::LOOP_ONESHOT;
281	}	497	}
282	}	498	}
		499
		500	my $time = EV::time - $time;
		501
		502	$TICK_START += $time; # do not account sync jobs to server load
283		503
284	wantarray ? @res : $res[0]	504	wantarray ? @res : $res[0]
285	} else {	505	} else {
286	# we are in another coroutine, how wonderful, everything just works	506	# we are in another coroutine, how wonderful, everything just works
287		507
…		…
289	}	509	}
290	}	510	}
291		511
292	=item $coro = cf::async_ext { BLOCK }	512	=item $coro = cf::async_ext { BLOCK }
293		513
294	Like async, but this coro is automcatially being canceled when the	514	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	515	extension calling this is being unloaded.
296		516
297	=cut	517	=cut
298		518
299	sub async_ext(&) {	519	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	527	$EXT_CORO{$coro+0} = $coro;
308		528
309	$coro	529	$coro
310	}	530	}
311		531
312	sub write_runtime {	532	=item fork_call { }, $args
313	my $runtime = cf::localdir . "/runtime";
314		533
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	534	Executes the given code block with the given arguments in a seperate
316	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.
317		538
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	539	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		540
322	aio_fsync $fh	541	sub fork_call(&@) {
323	and return;	542	my ($cb, @args) = @_;
324		543
325	close $fh	544	# we seemingly have to make a local copy of the whole thing,
326	or return;	545	# otherwise perl prematurely frees the stuff :/
		546	# TODO: investigate and fix (likely this will be rather laborious)
327		547
328	aio_rename "$runtime~", $runtime	548	my @res = Coro::Util::fork_eval {
329	and return;	549	reset_signals;
		550	&$cb
		551	}, @args;
330		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($$) {
		625	my $key = "$_[0]/$_[1]";
		626
		627	cf::sync_job {
		628	BDB::db_get $DB, undef, $key, my $data;
		629
		630	$! ? ()
		631	: $data
331	1	632	}
		633	}
		634
		635	sub db_put($$$) {
		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 => $type });
332	}	719	}
333		720
334	=back	721	=back
335		722
336	=cut	723	=cut
337
338	#############################################################################
339
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457		724
458	#############################################################################	725	#############################################################################
459		726
460	=head2 ATTACHABLE OBJECTS	727	=head2 ATTACHABLE OBJECTS
461		728
…		…
463	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")
464	to it. All such attachable objects support the following methods.	731	to it. All such attachable objects support the following methods.
465		732
466	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>
467	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
468	crossfire+).	735	Deliantra).
469		736
470	=over 4	737	=over 4
471		738
472	=item $attachable->attach ($attachment, key => $value...)	739	=item $attachable->attach ($attachment, key => $value...)
473		740
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	854	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	855	our @CB_MAP = ();
589		856
590	my %attachment;	857	my %attachment;
591		858
		859	sub cf::attachable::thawer_merge {
		860	# simply override everything except _meta
		861	local $_[0]{_meta};
		862	%{$_[0]} = %{$_[1]};
		863	}
		864
592	sub _attach_cb($$$$) {	865	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	866	my ($registry, $event, $prio, $cb) = @_;
594		867
595	use sort 'stable';	868	use sort 'stable';
596		869
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	903	$registry = $CB_TYPE[$object_type] ||= [];
631		904
632	} elsif ($type eq "subtype") {	905	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	906	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	907	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	908	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		909
637	} elsif ($type eq "package") {	910	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	911	my $pkg = shift @arg;
639		912
640	while (my ($name, $id) = each %cb_id) {	913	while (my ($name, $id) = each %cb_id) {
…		…
669	_attach $registry, $klass, @attach;	942	_attach $registry, $klass, @attach;
670	}	943	}
671		944
672	$obj->{$name} = \%arg;	945	$obj->{$name} = \%arg;
673	} else {	946	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	947	warn "object uses attachment '$name' which is not available, postponing.\n";
675	}	948	}
676		949
677	$obj->{_attachment}{$name} = undef;	950	$obj->{_attachment}{$name} = undef;
678	}	951	}
679		952
…		…
681	if (ref $_[0]) {	954	if (ref $_[0]) {
682	_object_attach @_;	955	_object_attach @_;
683	} else {	956	} else {
684	_attach shift->_attach_registry, @_;	957	_attach shift->_attach_registry, @_;
685	}	958	}
		959	_recalc_want;
686	};	960	};
687		961
688	# all those should be optimised	962	# all those should be optimised
689	sub cf::attachable::detach {	963	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	964	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	967	delete $obj->{_attachment}{$name};
694	reattach ($obj);	968	reattach ($obj);
695	} else {	969	} else {
696	Carp::croak "cannot, currently, detach class attachments";	970	Carp::croak "cannot, currently, detach class attachments";
697	}	971	}
		972	_recalc_want;
698	};	973	};
699		974
700	sub cf::attachable::attached {	975	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	976	my ($obj, $name) = @_;
702		977
…		…
717	";	992	";
718	die if $@;	993	die if $@;
719	}	994	}
720		995
721	our $override;	996	our $override;
722	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?
723		998
724	sub override {	999	sub override {
725	$override = 1;	1000	$override = 1;
726	@invoke_results = ();	1001	@INVOKE_RESULTS = (@_);
727	}	1002	}
728		1003
729	sub do_invoke {	1004	sub do_invoke {
730	my $event = shift;	1005	my $event = shift;
731	my $callbacks = shift;	1006	my $callbacks = shift;
732		1007
733	@invoke_results = ();	1008	@INVOKE_RESULTS = ();
734		1009
735	local $override;	1010	local $override;
736		1011
737	for (@$callbacks) {	1012	for (@$callbacks) {
738	eval { &{$_->[1]} };	1013	eval { &{$_->[1]} };
…		…
747	}	1022	}
748		1023
749	0	1024	0
750	}	1025	}
751		1026
752	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
753		1028
754	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1029	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
755		1030
756	Generate an object-specific event with the given arguments.	1031	Generate an object-specific event with the given arguments.
757		1032
758	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
759	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
760	results (if you must, access C<@cf::invoke_results> directly).	1035	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
761		1036
762	=back	1037	=back
763		1038
764	=cut	1039	=cut
765		1040
766	#############################################################################	1041	#############################################################################
767	# 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	}
768		1085
769	sub reattach {	1086	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	1087	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	1088	my ($obj) = @_;
		1089
		1090	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1091
773	my $registry = $obj->registry;	1092	my $registry = $obj->registry;
774		1093
775	@$registry = ();	1094	@$registry = ();
776		1095
…		…
791	cf::attachable->attach (	1110	cf::attachable->attach (
792	prio => -1000000,	1111	prio => -1000000,
793	on_instantiate => sub {	1112	on_instantiate => sub {
794	my ($obj, $data) = @_;	1113	my ($obj, $data) = @_;
795		1114
796	$data = from_json $data;	1115	$data = decode_json $data;
797		1116
798	for (@$data) {	1117	for (@$data) {
799	my ($name, $args) = @$_;	1118	my ($name, $args) = @$_;
800		1119
801	$obj->attach ($name, %{$args || {} });	1120	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1136	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1137	my ($filename, $rdata, $objs) = @_;
819		1138
820	sync_job {	1139	sync_job {
821	if (length $$rdata) {	1140	if (length $$rdata) {
		1141	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1142	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1143	$decname, length $$rdata, scalar @$objs;
824		1144
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1145	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1146	chmod SAVE_MODE, $fh;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1147	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh;	1148	aio_fsync $fh if $cf::USE_FSYNC;
829	close $fh;	1149	close $fh;
830		1150
831	if (@$objs) {	1151	if (@$objs) {
832	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) {
833	chmod SAVE_MODE, $fh;	1153	chmod SAVE_MODE, $fh;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1154	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1155	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
837	close $fh;	1157	close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1158	aio_rename "$filename.pst~", "$filename.pst";
839	}	1159	}
840	} else {	1160	} else {
841	aio_unlink "$filename.pst";	1161	aio_unlink "$filename.pst";
…		…
847	}	1167	}
848	} else {	1168	} else {
849	aio_unlink $filename;	1169	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1170	aio_unlink "$filename.pst";
851	}	1171	}
852	}	1172	};
853	}	1173	}
854		1174
855	sub object_freezer_as_string {	1175	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1176	my ($rdata, $objs) = @_;
857		1177
…		…
869	or return;	1189	or return;
870		1190
871	unless (aio_stat "$filename.pst") {	1191	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1192	(aio_load "$filename.pst", $av) >= 0
873	or return;	1193	or return;
		1194
874	$av = eval { (Storable::thaw $av)->{objs} };	1195	my $st = eval { Coro::Storable::thaw $av };
		1196	$av = $st->{objs};
875	}	1197	}
876		1198
		1199	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1200	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1201	$decname, length $data, scalar @{$av || []};
		1202
879	return ($data, $av);	1203	($data, $av)
880	}	1204	}
		1205
		1206	=head2 COMMAND CALLBACKS
		1207
		1208	=over 4
		1209
		1210	=cut
881		1211
882	#############################################################################	1212	#############################################################################
883	# command handling &c	1213	# command handling &c
884		1214
885	=item cf::register_command $name => \&callback($ob,$args);	1215	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1228	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1229	}
900		1230
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1231	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1232
903	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.
904		1238
905	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
906	called.	1240	called.
907		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
908	=cut	1253	=cut
909		1254
910	sub register_extcmd {	1255	sub register_extcmd {
911	my ($name, $cb) = @_;	1256	my ($name, $cb) = @_;
912		1257
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1258	$EXTCMD{$name} = $cb;
		1259	}
		1260
		1261	sub register_exticmd {
		1262	my ($name, $cb) = @_;
		1263
		1264	$EXTICMD{$name} = $cb;
917	}	1265	}
918		1266
919	cf::player->attach (	1267	cf::player->attach (
920	on_command => sub {	1268	on_command => sub {
921	my ($pl, $name, $params) = @_;	1269	my ($pl, $name, $params) = @_;
…		…
930	cf::override;	1278	cf::override;
931	},	1279	},
932	on_extcmd => sub {	1280	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1281	my ($pl, $buf) = @_;
934		1282
935	my $msg = eval { from_json $buf };	1283	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1284
937	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
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1293	if (my $cb = $EXTCMD{$type}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1294	@reply = $cb->($pl, @payload);
940	$pl->ext_reply ($msg->{msgid}, %reply);
941	}
942	}	1295	}
		1296
		1297	$pl->ext_reply ($reply, @reply)
		1298	if $reply;
		1299
943	} else {	1300	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1301	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
945	}	1302	}
946		1303
947	cf::override;	1304	cf::override;
948	},	1305	},
949	);	1306	);
950		1307
951	sub register {
952	my ($base, $pkg) = @_;
953
954	#TODO
955	}
956
957	sub load_extension {	1308	sub load_extensions {
		1309	cf::sync_job {
		1310	my %todo;
		1311
		1312	for my $path (<$LIBDIR/*.ext>) {
		1313	next unless -r $path;
		1314
		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;
		1371	}
		1372
		1373	skip:
		1374	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1375	unless $progress;
		1376	}
		1377	};
		1378	}
		1379
		1380	#############################################################################
		1381
		1382	=back
		1383
		1384	=head2 CORE EXTENSIONS
		1385
		1386	Functions and methods that extend core crossfire objects.
		1387
		1388	=cut
		1389
		1390	package cf::player;
		1391
		1392	use Coro::AIO;
		1393
		1394	=head3 cf::player
		1395
		1396	=over 4
		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
		1412	=item cf::player::find $login
		1413
		1414	Returns the given player object, loading it if necessary (might block).
		1415
		1416	=cut
		1417
		1418	sub playerdir($) {
		1419	"$PLAYERDIR/"
		1420	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1421	}
		1422
		1423	sub path($) {
		1424	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1425
		1426	(playerdir $login) . "/playerdata"
		1427	}
		1428
		1429	sub find_active($) {
		1430	$cf::PLAYER{$_[0]}
		1431	and $cf::PLAYER{$_[0]}->active
		1432	and $cf::PLAYER{$_[0]}
		1433	}
		1434
		1435	sub exists($) {
		1436	my ($login) = @_;
		1437
		1438	$cf::PLAYER{$login}
		1439	or cf::sync_job { !aio_stat path $login }
		1440	}
		1441
		1442	sub find($) {
		1443	return $cf::PLAYER{$_[0]} || do {
		1444	my $login = $_[0];
		1445
		1446	my $guard = cf::lock_acquire "user_find:$login";
		1447
		1448	$cf::PLAYER{$_[0]} || do {
		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
		1457	or return;
		1458
		1459	my $pl = cf::player::load_pl $f
		1460	or return;
		1461	local $cf::PLAYER_LOADING{$login} = $pl;
		1462	$f->resolve_delayed_derefs;
		1463	$cf::PLAYER{$login} = $pl
		1464	}
		1465	}
		1466	}
		1467
		1468	sub save($) {
		1469	my ($pl) = @_;
		1470
		1471	return if $pl->{deny_save};
		1472
		1473	my $path = path $pl;
		1474	my $guard = cf::lock_acquire "user_save:$path";
		1475
		1476	return if $pl->{deny_save};
		1477
		1478	aio_mkdir playerdir $pl, 0770;
		1479	$pl->{last_save} = $cf::RUNTIME;
		1480
		1481	cf::get_slot 0.01;
		1482
		1483	$pl->save_pl ($path);
		1484	cf::cede_to_tick;
		1485	}
		1486
		1487	sub new($) {
		1488	my ($login) = @_;
		1489
		1490	my $self = create;
		1491
		1492	$self->ob->name ($login);
		1493	$self->{deny_save} = 1;
		1494
		1495	$cf::PLAYER{$login} = $self;
		1496
		1497	$self
		1498	}
		1499
		1500	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1501
		1502	=cut
		1503
		1504	sub send_msg {
		1505	my $ns = shift->ns
		1506	or return;
		1507	$ns->send_msg (@_);
		1508	}
		1509
		1510	=item $pl->quit_character
		1511
		1512	Nukes the player without looking back. If logged in, the connection will
		1513	be destroyed. May block for a long time.
		1514
		1515	=cut
		1516
		1517	sub quit_character {
		1518	my ($pl) = @_;
		1519
		1520	my $name = $pl->ob->name;
		1521
		1522	$pl->{deny_save} = 1;
		1523	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1524
		1525	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1526	$pl->deactivate;
		1527	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1528	$pl->ns->destroy if $pl->ns;
		1529
		1530	my $path = playerdir $pl;
		1531	my $temp = "$path~$cf::RUNTIME~deleting~";
		1532	aio_rename $path, $temp;
		1533	delete $cf::PLAYER{$pl->ob->name};
		1534	$pl->destroy;
		1535
		1536	my $prefix = qr<^~\Q$name\E/>;
		1537
		1538	# nuke player maps
		1539	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1540
		1541	IO::AIO::aio_rmtree $temp;
		1542	}
		1543
		1544	=item $pl->kick
		1545
		1546	Kicks a player out of the game. This destroys the connection.
		1547
		1548	=cut
		1549
		1550	sub kick {
		1551	my ($pl, $kicker) = @_;
		1552
		1553	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1554	$pl->killer ("kicked");
		1555	$pl->ns->destroy;
		1556	}
		1557
		1558	=item cf::player::list_logins
		1559
		1560	Returns am arrayref of all valid playernames in the system, can take a
		1561	while and may block, so not sync_job-capable, ever.
		1562
		1563	=cut
		1564
		1565	sub list_logins {
		1566	my $dirs = aio_readdir $PLAYERDIR
		1567	or return [];
		1568
		1569	my @logins;
		1570
		1571	for my $login (@$dirs) {
		1572	my $path = path $login;
		1573
		1574	# a .pst is a dead give-away for a valid player
		1575	unless (-e "$path.pst") {
		1576	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1577	aio_read $fh, 0, 512, my $buf, 0 or next;
		1578	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1579	}
		1580
		1581	utf8::decode $login;
		1582	push @logins, $login;
		1583	}
		1584
		1585	\@logins
		1586	}
		1587
		1588	=item $player->maps
		1589
		1590	Returns an arrayref of map paths that are private for this
		1591	player. May block.
		1592
		1593	=cut
		1594
		1595	sub maps($) {
		1596	my ($pl) = @_;
		1597
		1598	$pl = ref $pl ? $pl->ob->name : $pl;
		1599
		1600	my $files = aio_readdir playerdir $pl
		1601	or return;
		1602
		1603	my @paths;
		1604
		1605	for (@$files) {
		1606	utf8::decode $_;
		1607	next if /\.(?:pl|pst)$/;
		1608	next unless /^$PATH_SEP/o;
		1609
		1610	push @paths, cf::map::normalise "~$pl/$_";
		1611	}
		1612
		1613	\@paths
		1614	}
		1615
		1616	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1617
		1618	Expand crossfire pod fragments into protocol xml.
		1619
		1620	=cut
		1621
		1622	use re 'eval';
		1623
		1624	my $group;
		1625	my $interior; $interior = qr{
		1626	# match a pod interior sequence sans C<< >>
		1627	(?:
		1628	\ (.*?)\ (?{ $group = $^N })
		1629	| < (??{$interior}) >
		1630	)
		1631	}x;
		1632
		1633	sub expand_cfpod {
		1634	my ($self, $pod) = @_;
		1635
		1636	my $xml;
		1637
		1638	while () {
		1639	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1640	$group = $1;
		1641
		1642	$group =~ s/&/&amp;/g;
		1643	$group =~ s/</&lt;/g;
		1644
		1645	$xml .= $group;
		1646	} elsif ($pod =~ m%\G
		1647	([BCGHITU])
		1648	<
		1649	(?:
		1650	([^<>]*) (?{ $group = $^N })
		1651	| < $interior >
		1652	)
		1653	>
		1654	%gcsx
		1655	) {
		1656	my ($code, $data) = ($1, $group);
		1657
		1658	if ($code eq "B") {
		1659	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1660	} elsif ($code eq "I") {
		1661	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1662	} elsif ($code eq "U") {
		1663	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1664	} elsif ($code eq "C") {
		1665	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1666	} elsif ($code eq "T") {
		1667	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1668	} elsif ($code eq "G") {
		1669	my ($male, $female) = split /\|/, $data;
		1670	$data = $self->gender ? $female : $male;
		1671	$xml .= expand_cfpod ($self, $data);
		1672	} elsif ($code eq "H") {
		1673	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1674	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1675	"")
		1676	[$self->{hintmode}];
		1677	} else {
		1678	$xml .= "error processing '$code($data)' directive";
		1679	}
		1680	} else {
		1681	if ($pod =~ /\G(.+)/) {
		1682	warn "parse error while expanding $pod (at $1)";
		1683	}
		1684	last;
		1685	}
		1686	}
		1687
		1688	for ($xml) {
		1689	# create single paragraphs (very hackish)
		1690	s/(?<=\S)\n(?=\w)/ /g;
		1691
		1692	# compress some whitespace
		1693	s/\s+\n/\n/g; # ws line-ends
		1694	s/\n\n+/\n/g; # double lines
		1695	s/^\n+//; # beginning lines
		1696	s/\n+$//; # ending lines
		1697	}
		1698
		1699	$xml
		1700	}
		1701
		1702	no re 'eval';
		1703
		1704	sub hintmode {
		1705	$_[0]{hintmode} = $_[1] if @_ > 1;
		1706	$_[0]{hintmode}
		1707	}
		1708
		1709	=item $player->ext_reply ($msgid, @msg)
		1710
		1711	Sends an ext reply to the player.
		1712
		1713	=cut
		1714
		1715	sub ext_reply($$@) {
		1716	my ($self, $id, @msg) = @_;
		1717
		1718	$self->ns->ext_reply ($id, @msg)
		1719	}
		1720
		1721	=item $player->ext_msg ($type, @msg)
		1722
		1723	Sends an ext event to the client.
		1724
		1725	=cut
		1726
		1727	sub ext_msg($$@) {
		1728	my ($self, $type, @msg) = @_;
		1729
		1730	$self->ns->ext_msg ($type, @msg);
		1731	}
		1732
		1733	=head3 cf::region
		1734
		1735	=over 4
		1736
		1737	=cut
		1738
		1739	package cf::region;
		1740
		1741	=item cf::region::find_by_path $path
		1742
		1743	Tries to decuce the likely region for a map knowing only its path.
		1744
		1745	=cut
		1746
		1747	sub find_by_path($) {
958	my ($path) = @_;	1748	my ($path) = @_;
959		1749
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1750	my ($match, $specificity);
961	my $base = $1;
962	my $pkg = $1;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965		1751
966	warn "loading '$path' into '$pkg'\n";	1752	for my $region (list) {
967		1753	if ($region->{match} && $path =~ $region->{match}) {
968	open my $fh, "<:utf8", $path	1754	($match, $specificity) = ($region, $region->specificity)
969	or die "$path: $!";	1755	if $region->specificity > $specificity;
970		1756	}
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }	1757	}
1000		1758
1001	# remove commands	1759	$match
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}
1010	}
1011
1012	# remove extcmds
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1014	delete $EXTCMD{$name};
1015	}
1016
1017	if (my $cb = $pkg->can ("unload")) {
1018	eval {
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023
1024	Symbol::delete_package $pkg;
1025	}
1026
1027	sub load_extensions {
1028	for my $ext (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;
1030	eval {
1031	load_extension $ext;
1032	1
1033	} or warn "$ext not loaded: $@";
1034	}
1035	}
1036
1037	#############################################################################
1038	# load/save/clean perl data associated with a map
1039
1040	*cf::mapsupport::on_clean = sub {
1041	my ($map) = @_;
1042
1043	my $path = $map->tmpname;
1044	defined $path or return;
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}
1057
1058	# TODO: compatibility cruft, remove when no longer needed
1059	cf::player->attach (
1060	on_load => sub {
1061	my ($pl, $path) = @_;
1062
1063	for my $o (all_objects $pl->ob) {
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1065	$o->set_ob_key_value ("_perl_data");
1066
1067	%$o = %{ Storable::thaw pack "H*", $value };
1068	}
1069	}
1070	},
1071	);
1072
1073	#############################################################################
1074
1075	=head2 CORE EXTENSIONS
1076
1077	Functions and methods that extend core crossfire objects.
1078
1079	=head3 cf::player
1080
1081	=over 4
1082
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut
1088
1089	sub cf::player::exists($) {
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
1095
1096	Sends an ext reply to the player.
1097
1098	=cut
1099
1100	sub cf::player::ext_reply($$$%) {
1101	my ($self, $id, %msg) = @_;
1102
1103	$msg{msgid} = $id;
1104
1105	$self->send ("ext " . to_json \%msg);
1106	}	1760	}
1107		1761
1108	=back	1762	=back
1109
1110		1763
1111	=head3 cf::map	1764	=head3 cf::map
1112		1765
1113	=over 4	1766	=over 4
1114		1767
…		…
1117	package cf::map;	1770	package cf::map;
1118		1771
1119	use Fcntl;	1772	use Fcntl;
1120	use Coro::AIO;	1773	use Coro::AIO;
1121		1774
		1775	use overload
		1776	'""' => \&as_string,
		1777	fallback => 1;
		1778
1122	our $MAX_RESET = 3600;	1779	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1780	our $DEFAULT_RESET = 3000;
1124		1781
1125	sub generate_random_map {	1782	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1783	my ($self, $rmp) = @_;
		1784
		1785	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1127		1786
1128	# mit "rum" bekleckern, nicht	1787	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1788	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1789	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1790	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1791	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1792	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1793	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1794	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1795	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1796	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1797	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1798	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region})	1799	(cf::region::find $rmp->{region}), $rmp->{custom}
		1800	)
		1801	}
		1802
		1803	=item cf::map->register ($regex, $prio)
		1804
		1805	Register a handler for the map path matching the given regex at the
		1806	givne priority (higher is better, built-in handlers have priority 0, the
		1807	default).
		1808
		1809	=cut
		1810
		1811	sub register {
		1812	my (undef, $regex, $prio) = @_;
		1813	my $pkg = caller;
		1814
		1815	no strict;
		1816	push @{"$pkg\::ISA"}, __PACKAGE__;
		1817
		1818	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1819	}
		1820
		1821	# also paths starting with '/'
		1822	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1823
		1824	sub thawer_merge {
		1825	my ($self, $merge) = @_;
		1826
		1827	# we have to keep some variables in memory intact
		1828	local $self->{path};
		1829	local $self->{load_path};
		1830
		1831	$self->SUPER::thawer_merge ($merge);
		1832	}
		1833
		1834	sub normalise {
		1835	my ($path, $base) = @_;
		1836
		1837	$path = "$path"; # make sure its a string
		1838
		1839	$path =~ s/\.map$//;
		1840
		1841	# map plan:
		1842	#
		1843	# /! non-realised random map exit (special hack!)
		1844	# {... are special paths that are not being touched
		1845	# ?xxx/... are special absolute paths
		1846	# ?random/... random maps
		1847	# /... normal maps
		1848	# ~user/... per-player map of a specific user
		1849
		1850	$path =~ s/$PATH_SEP/\//go;
		1851
		1852	# treat it as relative path if it starts with
		1853	# something that looks reasonable
		1854	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1855	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1856
		1857	$base =~ s{[^/]+/?$}{};
		1858	$path = "$base/$path";
		1859	}
		1860
		1861	for ($path) {
		1862	redo if s{//}{/};
		1863	redo if s{/\.?/}{/};
		1864	redo if s{/[^/]+/\.\./}{/};
		1865	}
		1866
		1867	$path
		1868	}
		1869
		1870	sub new_from_path {
		1871	my (undef, $path, $base) = @_;
		1872
		1873	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1874
		1875	$path = normalise $path, $base;
		1876
		1877	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1878	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1879	my $self = bless cf::map::new, $pkg;
		1880	$self->{path} = $path; $self->path ($path);
		1881	$self->init; # pass $1 etc.
		1882	return $self;
		1883	}
		1884	}
		1885
		1886	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1887	()
		1888	}
		1889
		1890	sub init {
		1891	my ($self) = @_;
		1892
		1893	$self
		1894	}
		1895
		1896	sub as_string {
		1897	my ($self) = @_;
		1898
		1899	"$self->{path}"
		1900	}
		1901
		1902	# the displayed name, this is a one way mapping
		1903	sub visible_name {
		1904	&as_string
		1905	}
		1906
		1907	# the original (read-only) location
		1908	sub load_path {
		1909	my ($self) = @_;
		1910
		1911	"$MAPDIR/$self->{path}.map"
		1912	}
		1913
		1914	# the temporary/swap location
		1915	sub save_path {
		1916	my ($self) = @_;
		1917
		1918	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1919	"$TMPDIR/$path.map"
		1920	}
		1921
		1922	# the unique path, undef == no special unique path
		1923	sub uniq_path {
		1924	my ($self) = @_;
		1925
		1926	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1927	"$UNIQUEDIR/$path"
1142	}	1928	}
1143		1929
1144	# and all this just because we cannot iterate over	1930	# and all this just because we cannot iterate over
1145	# all maps in C++...	1931	# all maps in C++...
1146	sub change_all_map_light {	1932	sub change_all_map_light {
…		…
1148		1934
1149	$_->change_map_light ($change)	1935	$_->change_map_light ($change)
1150	for grep $_->outdoor, values %cf::MAP;	1936	for grep $_->outdoor, values %cf::MAP;
1151	}	1937	}
1152		1938
		1939	sub decay_objects {
		1940	my ($self) = @_;
		1941
		1942	return if $self->{deny_reset};
		1943
		1944	$self->do_decay_objects;
		1945	}
		1946
		1947	sub unlink_save {
		1948	my ($self) = @_;
		1949
		1950	utf8::encode (my $save = $self->save_path);
		1951	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1952	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1953	}
		1954
1153	sub try_load_header($) {	1955	sub load_header_from($) {
1154	my ($path) = @_;	1956	my ($self, $path) = @_;
1155		1957
1156	utf8::encode $path;	1958	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1959	my $f = new_from_file cf::object::thawer $path
1158	or return;	1960	or return;
1159		1961
1160	my $map = cf::map::new	1962	$self->_load_header ($f)
1161	or return;	1963	or return;
1162		1964
1163	# for better error messages only, will be overwritten	1965	local $MAP_LOADING{$self->{path}} = $self;
1164	$map->path ($path);	1966	$f->resolve_delayed_derefs;
1165		1967
1166	$map->load_header ($path)	1968	$self->{load_path} = $path;
		1969
		1970	1
		1971	}
		1972
		1973	sub load_header_orig {
		1974	my ($self) = @_;
		1975
		1976	$self->load_header_from ($self->load_path)
		1977	}
		1978
		1979	sub load_header_temp {
		1980	my ($self) = @_;
		1981
		1982	$self->load_header_from ($self->save_path)
		1983	}
		1984
		1985	sub prepare_temp {
		1986	my ($self) = @_;
		1987
		1988	$self->last_access ((delete $self->{last_access})
		1989	|| $cf::RUNTIME); #d#
		1990	# safety
		1991	$self->{instantiate_time} = $cf::RUNTIME
		1992	if $self->{instantiate_time} > $cf::RUNTIME;
		1993	}
		1994
		1995	sub prepare_orig {
		1996	my ($self) = @_;
		1997
		1998	$self->{load_original} = 1;
		1999	$self->{instantiate_time} = $cf::RUNTIME;
		2000	$self->last_access ($cf::RUNTIME);
		2001	$self->instantiate;
		2002	}
		2003
		2004	sub load_header {
		2005	my ($self) = @_;
		2006
		2007	if ($self->load_header_temp) {
		2008	$self->prepare_temp;
		2009	} else {
		2010	$self->load_header_orig
1167	or return;	2011	or return;
		2012	$self->prepare_orig;
		2013	}
1168		2014
1169	$map->{load_path} = $path;	2015	$self->{deny_reset} = 1
		2016	if $self->no_reset;
1170		2017
1171	$map	2018	$self->default_region (cf::region::find_by_path $self->{path})
		2019	unless $self->default_region;
		2020
		2021	1
1172	}	2022	}
1173		2023
1174	sub find;	2024	sub find;
1175	sub find {	2025	sub find {
1176	my ($path, $origin) = @_;	2026	my ($path, $origin) = @_;
1177		2027
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	2028	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		2029
		2030	cf::lock_wait "map_data:$path";#d#remove
1183	cf::lock_wait "map_find:$key";	2031	cf::lock_wait "map_find:$path";
1184		2032
1185	$cf::MAP{$key} || do {	2033	$cf::MAP{$path} || do {
1186	my $guard = cf::lock_acquire "map_find:$key";	2034	my $guard1 = cf::lock_acquire "map_find:$path";
		2035	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1187		2036
1188	# do it the slow way	2037	my $map = new_from_path cf::map $path
1189	my $map = try_load_header $path->save_path;
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	2038	or return;
1207		2039
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	2040	$map->{last_save} = $cf::RUNTIME;
1220		2041
1221	Coro::cede;	2042	$map->load_header
		2043	or return;
1222		2044
1223	if ($map->should_reset) {	2045	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2046	# doing this can freeze the server in a sync job, obviously
		2047	#$cf::WAIT_FOR_TICK->wait;
		2048	undef $guard1;
		2049	undef $guard2;
1224	$map->reset;	2050	$map->reset;
1225	undef $guard;
1226	$map = find $path	2051	return find $path;
1227	or return;
1228	}	2052	}
1229		2053
1230	$cf::MAP{$key} = $map	2054	$cf::MAP{$path} = $map
1231	}	2055	}
1232	}	2056	}
		2057
		2058	sub pre_load { }
		2059	sub post_load { }
1233		2060
1234	sub load {	2061	sub load {
1235	my ($self) = @_;	2062	my ($self) = @_;
1236		2063
		2064	local $self->{deny_reset} = 1; # loading can take a long time
		2065
1237	my $path = $self->{path};	2066	my $path = $self->{path};
		2067
		2068	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2069	my $guard = cf::lock_acquire "map_data:$path";
1239		2070
		2071	return unless $self->valid;
1240	return if $self->in_memory != cf::MAP_SWAPPED;	2072	return unless $self->in_memory == cf::MAP_SWAPPED;
1241		2073
1242	$self->in_memory (cf::MAP_LOADING);	2074	$self->in_memory (cf::MAP_LOADING);
1243		2075
1244	$self->alloc;	2076	$self->alloc;
1245	$self->load_objects ($self->{load_path}, 1)	2077
		2078	$self->pre_load;
		2079	cf::cede_to_tick;
		2080
		2081	my $f = new_from_file cf::object::thawer $self->{load_path};
		2082	$f->skip_block;
		2083	$self->_load_objects ($f)
1246	or return;	2084	or return;
1247		2085
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2086	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	2087	if delete $self->{load_original};
1250		2088
1251	if (my $uniq = $path->uniq_path) {	2089	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	2090	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	2091	unless (aio_stat $uniq) {
		2092	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	2093	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	2094	$self->_load_objects ($f);
		2095	$f->resolve_delayed_derefs;
		2096	}
1256	}	2097	}
1257	}	2098	}
1258		2099
1259	Coro::cede;	2100	$f->resolve_delayed_derefs;
1260		2101
		2102	cf::cede_to_tick;
1261	# now do the right thing for maps	2103	# now do the right thing for maps
1262	$self->link_multipart_objects;	2104	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	2105	$self->difficulty ($self->estimate_difficulty)
1273	unless $self->difficulty;	2106	unless $self->difficulty;
		2107	cf::cede_to_tick;
		2108
		2109	unless ($self->{deny_activate}) {
		2110	$self->decay_objects;
		2111	$self->fix_auto_apply;
		2112	$self->update_buttons;
		2113	cf::cede_to_tick;
		2114	$self->set_darkness_map;
		2115	cf::cede_to_tick;
1274	$self->activate;	2116	$self->activate;
1275	}	2117	}
1276		2118
1277	Coro::cede;	2119	$self->{last_save} = $cf::RUNTIME;
		2120	$self->last_access ($cf::RUNTIME);
1278		2121
1279	$self->in_memory (cf::MAP_IN_MEMORY);	2122	$self->in_memory (cf::MAP_ACTIVE);
		2123	}
		2124
		2125	$self->post_load;
		2126	}
		2127
		2128	sub customise_for {
		2129	my ($self, $ob) = @_;
		2130
		2131	return find "~" . $ob->name . "/" . $self->{path}
		2132	if $self->per_player;
		2133
		2134	# return find "?party/" . $ob->name . "/" . $self->{path}
		2135	# if $self->per_party;
		2136
		2137	$self
		2138	}
		2139
		2140	# find and load all maps in the 3x3 area around a map
		2141	sub load_neighbours {
		2142	my ($map) = @_;
		2143
		2144	my @neigh; # diagonal neighbours
		2145
		2146	for (0 .. 3) {
		2147	my $neigh = $map->tile_path ($_)
		2148	or next;
		2149	$neigh = find $neigh, $map
		2150	or next;
		2151	$neigh->load;
		2152
		2153	push @neigh,
		2154	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2155	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2156	}
		2157
		2158	for (grep defined $_->[0], @neigh) {
		2159	my ($path, $origin) = @$_;
		2160	my $neigh = find $path, $origin
		2161	or next;
		2162	$neigh->load;
		2163	}
1280	}	2164	}
1281		2165
1282	sub find_sync {	2166	sub find_sync {
1283	my ($path, $origin) = @_;	2167	my ($path, $origin) = @_;
1284		2168
1285	cf::sync_job { cf::map::find $path, $origin }	2169	cf::sync_job { find $path, $origin }
1286	}	2170	}
1287		2171
1288	sub do_load_sync {	2172	sub do_load_sync {
1289	my ($map) = @_;	2173	my ($map) = @_;
1290		2174
		2175	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2176	if $Coro::current == $Coro::main;
		2177
1291	cf::sync_job { $map->load };	2178	cf::sync_job { $map->load };
		2179	}
		2180
		2181	our %MAP_PREFETCH;
		2182	our $MAP_PREFETCHER = undef;
		2183
		2184	sub find_async {
		2185	my ($path, $origin, $load) = @_;
		2186
		2187	$path = normalise $path, $origin && $origin->{path};
		2188
		2189	if (my $map = $cf::MAP{$path}) {
		2190	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2191	}
		2192
		2193	$MAP_PREFETCH{$path} |= $load;
		2194
		2195	$MAP_PREFETCHER ||= cf::async {
		2196	$Coro::current->{desc} = "map prefetcher";
		2197
		2198	while (%MAP_PREFETCH) {
		2199	while (my ($k, $v) = each %MAP_PREFETCH) {
		2200	if (my $map = find $k) {
		2201	$map->load if $v;
		2202	}
		2203
		2204	delete $MAP_PREFETCH{$k};
		2205	}
		2206	}
		2207	undef $MAP_PREFETCHER;
		2208	};
		2209	$MAP_PREFETCHER->prio (6);
		2210
		2211	()
1292	}	2212	}
1293		2213
1294	sub save {	2214	sub save {
1295	my ($self) = @_;	2215	my ($self) = @_;
1296		2216
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	2217	my $lock = cf::lock_acquire "map_data:$self->{path}";
1298		2218
1299	$self->{last_save} = $cf::RUNTIME;	2219	$self->{last_save} = $cf::RUNTIME;
1300		2220
1301	return unless $self->dirty;	2221	return unless $self->dirty;
1302		2222
1303	my $save = $self->{path}->save_path; utf8::encode $save;	2223	my $save = $self->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2224	my $uniq = $self->uniq_path; utf8::encode $uniq;
1305		2225
1306	$self->{load_path} = $save;	2226	$self->{load_path} = $save;
1307		2227
1308	return if $self->{deny_save};	2228	return if $self->{deny_save};
1309		2229
1310	local $self->{last_access} = $self->last_access;#d#	2230	local $self->{last_access} = $self->last_access;#d#
1311		2231
		2232	cf::async {
		2233	$Coro::current->{desc} = "map player save";
		2234	$_->contr->save for $self->players;
		2235	};
		2236
		2237	cf::get_slot 0.02;
		2238
1312	if ($uniq) {	2239	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2240	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);	2241	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {	2242	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2243	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}	2244	}
1318	}	2245	}
1319		2246
1320	sub swap_out {	2247	sub swap_out {
1321	my ($self) = @_;	2248	my ($self) = @_;
1322		2249
1323	# save first because save cedes	2250	# save first because save cedes
1324	$self->save;	2251	$self->save;
1325		2252
1326	my $lock = cf::lock_acquire "map_data:" . $self->path;	2253	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327		2254
1328	return if $self->players;	2255	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	2256	return if $self->in_memory != cf::MAP_ACTIVE;
1330	return if $self->{deny_save};	2257	return if $self->{deny_save};
1331		2258
		2259	$self->in_memory (cf::MAP_SWAPPED);
		2260
		2261	$self->deactivate;
		2262	$_->clear_links_to ($self) for values %cf::MAP;
1332	$self->clear;	2263	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2264	}
1335		2265
1336	sub reset_at {	2266	sub reset_at {
1337	my ($self) = @_;	2267	my ($self) = @_;
1338		2268
1339	# TODO: safety, remove and allow resettable per-player maps	2269	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2270	return 1e99 if $self->{deny_reset};
1342		2271
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2272	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2273	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2274
…		…
1350	my ($self) = @_;	2279	my ($self) = @_;
1351		2280
1352	$self->reset_at <= $cf::RUNTIME	2281	$self->reset_at <= $cf::RUNTIME
1353	}	2282	}
1354		2283
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2284	sub reset {
1377	my ($self) = @_;	2285	my ($self) = @_;
1378		2286
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	2287	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		2288
1381	return if $self->players;	2289	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2290
1384	warn "resetting map ", $self->path;#d#	2291	warn "resetting map ", $self->path;
		2292
		2293	$self->in_memory (cf::MAP_SWAPPED);
		2294
		2295	# need to save uniques path
		2296	unless ($self->{deny_save}) {
		2297	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2298
		2299	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2300	if $uniq;
		2301	}
1385		2302
1386	delete $cf::MAP{$self->path};	2303	delete $cf::MAP{$self->path};
1387		2304
		2305	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2306	$_->clear_links_to ($self) for values %cf::MAP;
		2307	$self->clear;
1389		2308
1390	$self->unlink_save;	2309	$self->unlink_save;
1391	$self->destroy;	2310	$self->destroy;
1392	}	2311	}
1393		2312
1394	my $nuke_counter = "aaaa";	2313	my $nuke_counter = "aaaa";
1395		2314
1396	sub nuke {	2315	sub nuke {
1397	my ($self) = @_;	2316	my ($self) = @_;
1398		2317
		2318	{
		2319	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2320
		2321	delete $cf::MAP{$self->path};
		2322
		2323	$self->unlink_save;
		2324
		2325	bless $self, "cf::map";
		2326	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2327	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2328	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2329	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2330
		2331	$cf::MAP{$self->path} = $self;
		2332	}
		2333
1402	$self->reset; # polite request, might not happen	2334	$self->reset; # polite request, might not happen
1403	}	2335	}
1404		2336
1405	sub customise_for {	2337	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2338
1408	if ($map->per_player) {	2339	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2340	maps. May block.
		2341
		2342	=cut
		2343
		2344	sub tmp_maps() {
1410	}	2345	[
1411		2346	map {
1412	$map	2347	utf8::decode $_;
		2348	/\.map$/
		2349	? normalise $_
		2350	: ()
		2351	} @{ aio_readdir $TMPDIR or [] }
		2352	]
1413	}	2353	}
1414		2354
1415	sub emergency_save {	2355	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2356
1418	warn "enter emergency map save\n";	2357	Returns an arrayref with all map paths of currently instantiated and saved
		2358	random maps. May block.
1419		2359
1420	cf::sync_job {	2360	=cut
1421	warn "begin emergency map save\n";	2361
1422	$_->save for values %cf::MAP;	2362	sub random_maps() {
		2363	[
		2364	map {
		2365	utf8::decode $_;
		2366	/\.map$/
		2367	? normalise "?random/$_"
		2368	: ()
		2369	} @{ aio_readdir $RANDOMDIR or [] }
		2370	]
		2371	}
		2372
		2373	=item cf::map::unique_maps
		2374
		2375	Returns an arrayref of paths of all shared maps that have
		2376	instantiated unique items. May block.
		2377
		2378	=cut
		2379
		2380	sub unique_maps() {
		2381	[
		2382	map {
		2383	utf8::decode $_;
		2384	s/\.map$//; # TODO future compatibility hack
		2385	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2386	? ()
		2387	: normalise $_
		2388	} @{ aio_readdir $UNIQUEDIR or [] }
		2389	]
		2390	}
		2391
		2392	=back
		2393
		2394	=head3 cf::object
		2395
		2396	=cut
		2397
		2398	package cf::object;
		2399
		2400	=over 4
		2401
		2402	=item $ob->inv_recursive
		2403
		2404	Returns the inventory of the object I<and> their inventories, recursively,
		2405	but I<not> the object itself.
		2406
		2407	=cut
		2408
		2409	sub inv_recursive_;
		2410	sub inv_recursive_ {
		2411	map { $_, inv_recursive_ $_->inv } @_
		2412	}
		2413
		2414	sub inv_recursive {
		2415	inv_recursive_ inv $_[0]
		2416	}
		2417
		2418	=item $ref = $ob->ref
		2419
		2420	Creates and returns a persistent reference to an object that can be stored as a string.
		2421
		2422	=item $ob = cf::object::deref ($refstring)
		2423
		2424	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2425	even if the object actually exists. May block.
		2426
		2427	=cut
		2428
		2429	sub deref {
		2430	my ($ref) = @_;
		2431
		2432	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2433	my ($uuid, $name) = ($1, $2);
		2434	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2435	or return;
		2436	$pl->ob->uuid eq $uuid
		2437	or return;
		2438
		2439	$pl->ob
		2440	} else {
		2441	warn "$ref: cannot resolve object reference\n";
		2442	undef
1423	};	2443	}
1424
1425	warn "end emergency map save\n";
1426	}	2444	}
1427		2445
1428	package cf;	2446	package cf;
1429		2447
1430	=back	2448	=back
1431
1432		2449
1433	=head3 cf::object::player	2450	=head3 cf::object::player
1434		2451
1435	=over 4	2452	=over 4
1436		2453
…		…
1450		2467
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2469
1453	if ($self->{record_replies}) {	2470	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2472
1455	} else {	2473	} else {
		2474	my $pl = $self->contr;
		2475
		2476	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2477	my $dialog = $pl->{npc_dialog};
		2478	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2479
		2480	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2481	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2482	$self->message ($msg, $flags);
		2483	}
1458	}	2484	}
		2485	}
		2486
		2487	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2488
		2489	=cut
		2490
		2491	sub cf::object::send_msg {
		2492	my $pl = shift->contr
		2493	or return;
		2494	$pl->send_msg (@_);
1459	}	2495	}
1460		2496
1461	=item $player_object->may ("access")	2497	=item $player_object->may ("access")
1462		2498
1463	Returns wether the given player is authorized to access resource "access"	2499	Returns wether the given player is authorized to access resource "access"
…		…
1476		2512
1477	=item $player_object->enter_link	2513	=item $player_object->enter_link
1478		2514
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2515	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2516
1481	The player should be reaosnably safe there for short amounts of time. You	2517	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	2518	I<MUST> call C<leave_link> as soon as possible, though.
1483		2519
		2520	Will never block.
		2521
1484	=item $player_object->leave_link ($map, $x, $y)	2522	=item $player_object->leave_link ($map, $x, $y)
1485		2523
1486	Moves the player out of the specila link map onto the given map. If the	2524	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2525	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2526	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2527	fails, to the emergency map position.
1490		2528
1491	Might block.	2529	Might block.
1492		2530
1493	=cut	2531	=cut
		2532
		2533	sub link_map {
		2534	unless ($LINK_MAP) {
		2535	$LINK_MAP = cf::map::find "{link}"
		2536	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2537	$LINK_MAP->load;
		2538	}
		2539
		2540	$LINK_MAP
		2541	}
1494		2542
1495	sub cf::object::player::enter_link {	2543	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2544	my ($self) = @_;
1497		2545
1498	$self->deactivate_recursive;	2546	$self->deactivate_recursive;
1499		2547
1500	return if $self->map == $LINK_MAP;	2548	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2549
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2550	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2551	if $self->map && $self->map->{path} ne "{link}";
1504		2552
1505	$self->enter_map ($LINK_MAP, 20, 20);	2553	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2554	}
1507		2555
1508	sub cf::object::player::leave_link {	2556	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2557	my ($self, $map, $x, $y) = @_;
		2558
		2559	return unless $self->contr->active;
1510		2560
1511	my $link_pos = delete $self->{_link_pos};	2561	my $link_pos = delete $self->{_link_pos};
1512		2562
1513	unless ($map) {	2563	unless ($map) {
1514	# restore original map position	2564	# restore original map position
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2578	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2579	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2580	if $x <=0 && $y <= 0;
1531		2581
1532	$map->load;	2582	$map->load;
		2583	$map->load_neighbours;
1533		2584
		2585	return unless $self->contr->active;
1534	$self->activate_recursive;	2586	$self->activate_recursive;
		2587
		2588	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2589	$self->enter_map ($map, $x, $y);
1536	}	2590	}
1537		2591
1538	cf::player->attach (	2592	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1539	on_logout => sub {
1540	my ($pl) = @_;
1541		2593
1542	# abort map switching before logout	2594	Moves the player to the given map-path and coordinates by first freezing
1543	if ($pl->ob->{_link_pos}) {	2595	her, loading and preparing them map, calling the provided $check callback
1544	cf::sync_job {	2596	that has to return the map if sucecssful, and then unfreezes the player on
1545	$pl->ob->leave_link	2597	the new (success) or old (failed) map position. In either case, $done will
1546	};	2598	be called at the end of this process.
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2599
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555
1556	$pl->ob->enter_link;
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570
1571	=item $player_object->goto ($path, $x, $y)
1572
1573	=cut	2600	=cut
		2601
		2602	our $GOTOGEN;
1574		2603
1575	sub cf::object::player::goto {	2604	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2605	my ($self, $path, $x, $y, $check, $done) = @_;
		2606
		2607	# do generation counting so two concurrent goto's will be executed in-order
		2608	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2609
1578	$self->enter_link;	2610	$self->enter_link;
1579		2611
1580	(async {	2612	(async {
1581	$path = new cf::path $path;	2613	$Coro::current->{desc} = "player::goto $path $x $y";
1582		2614
1583	my $map = cf::map::find $path->as_string;	2615	# *tag paths override both path and x|y
		2616	if ($path =~ /^\*(.*)$/) {
		2617	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2618	my $ob = $obs[rand @obs];
		2619
		2620	# see if we actually can go there
		2621	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2622	$ob = $obs[rand @obs];
		2623	} else {
		2624	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2625	}
		2626	# else put us there anyways for now #d#
		2627
		2628	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2629	} else {
		2630	($path, $x, $y) = (undef, undef, undef);
		2631	}
		2632	}
		2633
		2634	my $map = eval {
		2635	my $map = defined $path ? cf::map::find $path : undef;
		2636
		2637	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2638	$map = $map->customise_for ($self);
1585		2639	$map = $check->($map) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2640	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2641	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2642	}
1590		2643
		2644	$map
		2645	};
		2646
		2647	if ($@) {
		2648	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2649	LOG llevError | logBacktrace, Carp::longmess $@;
		2650	}
		2651
		2652	if ($gen == $self->{_goto_generation}) {
		2653	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2654	$self->leave_link ($map, $x, $y);
		2655	}
		2656
		2657	$done->() if $done;
1592	})->prio (1);	2658	})->prio (1);
1593	}	2659	}
1594		2660
1595	=item $player_object->enter_exit ($exit_object)	2661	=item $player_object->enter_exit ($exit_object)
1596		2662
…		…
1598		2664
1599	sub parse_random_map_params {	2665	sub parse_random_map_params {
1600	my ($spec) = @_;	2666	my ($spec) = @_;
1601		2667
1602	my $rmp = { # defaults	2668	my $rmp = { # defaults
1603	xsize => 10,	2669	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2670	ysize => (cf::rndm 15, 40),
		2671	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2672	#layout => string,
1605	};	2673	};
1606		2674
1607	for (split /\n/, $spec) {	2675	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2676	my ($k, $v) = split /\s+/, $_, 2;
1609		2677
…		…
1613	$rmp	2681	$rmp
1614	}	2682	}
1615		2683
1616	sub prepare_random_map {	2684	sub prepare_random_map {
1617	my ($exit) = @_;	2685	my ($exit) = @_;
		2686
		2687	my $guard = cf::lock_acquire "exit_prepare:$exit";
1618		2688
1619	# all this does is basically replace the /! path by	2689	# all this does is basically replace the /! path by
1620	# a new random map path (?random/...) with a seed	2690	# a new random map path (?random/...) with a seed
1621	# that depends on the exit object	2691	# that depends on the exit object
1622		2692
1623	my $rmp = parse_random_map_params $exit->msg;	2693	my $rmp = parse_random_map_params $exit->msg;
1624		2694
1625	if ($exit->map) {	2695	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2696	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2697	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2698	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2699	$rmp->{origin_y} = $exit->y;
1630	}	2700	}
1631		2701
1632	$rmp->{random_seed} ||= $exit->random_seed;	2702	$rmp->{random_seed} ||= $exit->random_seed;
1633		2703
1634	my $data = cf::to_json $rmp;	2704	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1635	my $md5 = Digest::MD5::md5_hex $data;	2705	my $md5 = Digest::MD5::md5_hex $data;
		2706	my $meta = "$RANDOMDIR/$md5.meta";
1636		2707
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2708	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2709	aio_write $fh, 0, (length $data), $data, 0;
		2710	undef $fh;
		2711	aio_rename "$meta~", $meta;
1639		2712
1640	$exit->slaying ("?random/$md5");	2713	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2714	$exit->msg (undef);
1642	}	2715	}
1643	}	2716	}
…		…
1645	sub cf::object::player::enter_exit {	2718	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2719	my ($self, $exit) = @_;
1647		2720
1648	return unless $self->type == cf::PLAYER;	2721	return unless $self->type == cf::PLAYER;
1649		2722
		2723	if ($exit->slaying eq "/!") {
		2724	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2725	# the problem is that $exit might not survive long enough
		2726	# so it needs to be done right now, right here
		2727	cf::sync_job { prepare_random_map $exit };
		2728	}
		2729
		2730	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2731	my $hp = $exit->stats->hp;
		2732	my $sp = $exit->stats->sp;
		2733
1650	$self->enter_link;	2734	$self->enter_link;
1651		2735
		2736	# if exit is damned, update players death & WoR home-position
		2737	$self->contr->savebed ($slaying, $hp, $sp)
		2738	if $exit->flag (FLAG_DAMNED);
		2739
1652	(async {	2740	(async {
		2741	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2742
1653	$self->deactivate_recursive; # just to be sure	2743	$self->deactivate_recursive; # just to be sure
1654	unless (eval {	2744	unless (eval {
1655	prepare_random_map $exit	2745	$self->goto ($slaying, $hp, $sp);
1656	if $exit->slaying eq "/!";
1657
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1660		2746
1661	1;	2747	1;
1662	}) {	2748	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2749	$self->message ("Something went wrong deep within the crossfire server. "
1664	. "I'll try to bring you back to the map you were before. "	2750	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	2751	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2752	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2753
1668	warn "ERROR in enter_exit: $@";	2754	warn "ERROR in enter_exit: $@";
1669	$self->leave_link;	2755	$self->leave_link;
1670	}	2756	}
1671	})->prio (1);	2757	})->prio (1);
…		…
1684		2770
1685	sub cf::client::send_drawinfo {	2771	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2772	my ($self, $text, $flags) = @_;
1687		2773
1688	utf8::encode $text;	2774	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2775	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2776	}
1691		2777
		2778	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2779
		2780	Send a drawinfo or msg packet to the client, formatting the msg for the
		2781	client if neccessary. C<$type> should be a string identifying the type of
		2782	the message, with C<log> being the default. If C<$color> is negative, suppress
		2783	the message unless the client supports the msg packet.
		2784
		2785	=cut
		2786
		2787	# non-persistent channels (usually the info channel)
		2788	our %CHANNEL = (
		2789	"c/identify" => {
		2790	id => "infobox",
		2791	title => "Identify",
		2792	reply => undef,
		2793	tooltip => "Items recently identified",
		2794	},
		2795	"c/examine" => {
		2796	id => "infobox",
		2797	title => "Examine",
		2798	reply => undef,
		2799	tooltip => "Signs and other items you examined",
		2800	},
		2801	"c/book" => {
		2802	id => "infobox",
		2803	title => "Book",
		2804	reply => undef,
		2805	tooltip => "The contents of a note or book",
		2806	},
		2807	"c/lookat" => {
		2808	id => "infobox",
		2809	title => "Look",
		2810	reply => undef,
		2811	tooltip => "What you saw there",
		2812	},
		2813	"c/who" => {
		2814	id => "infobox",
		2815	title => "Players",
		2816	reply => undef,
		2817	tooltip => "Shows players who are currently online",
		2818	},
		2819	"c/body" => {
		2820	id => "infobox",
		2821	title => "Body Parts",
		2822	reply => undef,
		2823	tooltip => "Shows which body parts you posess and are available",
		2824	},
		2825	"c/uptime" => {
		2826	id => "infobox",
		2827	title => "Uptime",
		2828	reply => undef,
		2829	tooltip => "How long the server has been running since last restart",
		2830	},
		2831	"c/mapinfo" => {
		2832	id => "infobox",
		2833	title => "Map Info",
		2834	reply => undef,
		2835	tooltip => "Information related to the maps",
		2836	},
		2837	"c/party" => {
		2838	id => "party",
		2839	title => "Party",
		2840	reply => "gsay ",
		2841	tooltip => "Messages and chat related to your party",
		2842	},
		2843	);
		2844
		2845	sub cf::client::send_msg {
		2846	my ($self, $channel, $msg, $color, @extra) = @_;
		2847
		2848	$msg = $self->pl->expand_cfpod ($msg);
		2849
		2850	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2851
		2852	# check predefined channels, for the benefit of C
		2853	if ($CHANNEL{$channel}) {
		2854	$channel = $CHANNEL{$channel};
		2855
		2856	$self->ext_msg (channel_info => $channel)
		2857	if $self->can_msg;
		2858
		2859	$channel = $channel->{id};
		2860
		2861	} elsif (ref $channel) {
		2862	# send meta info to client, if not yet sent
		2863	unless (exists $self->{channel}{$channel->{id}}) {
		2864	$self->{channel}{$channel->{id}} = $channel;
		2865	$self->ext_msg (channel_info => $channel)
		2866	if $self->can_msg;
		2867	}
		2868
		2869	$channel = $channel->{id};
		2870	}
		2871
		2872	return unless @extra || length $msg;
		2873
		2874	if ($self->can_msg) {
		2875	# default colour, mask it out
		2876	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2877	if $color & cf::NDI_DEF;
		2878
		2879	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2880	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2881	} else {
		2882	if ($color >= 0) {
		2883	# replace some tags by gcfclient-compatible ones
		2884	for ($msg) {
		2885	1 while
		2886	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2887	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2888	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2889	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2890	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2891	}
		2892
		2893	$color &= cf::NDI_COLOR_MASK;
		2894
		2895	utf8::encode $msg;
		2896
		2897	if (0 && $msg =~ /\[/) {
		2898	# COMMAND/INFO
		2899	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2900	} else {
		2901	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2902	$self->send_packet ("drawinfo $color $msg")
		2903	}
		2904	}
		2905	}
		2906	}
		2907
		2908	=item $client->ext_msg ($type, @msg)
		2909
		2910	Sends an ext event to the client.
		2911
		2912	=cut
		2913
		2914	sub cf::client::ext_msg($$@) {
		2915	my ($self, $type, @msg) = @_;
		2916
		2917	if ($self->extcmd == 2) {
		2918	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2919	} elsif ($self->extcmd == 1) { # TODO: remove
		2920	push @msg, msgtype => "event_$type";
		2921	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2922	}
		2923	}
		2924
		2925	=item $client->ext_reply ($msgid, @msg)
		2926
		2927	Sends an ext reply to the client.
		2928
		2929	=cut
		2930
		2931	sub cf::client::ext_reply($$@) {
		2932	my ($self, $id, @msg) = @_;
		2933
		2934	if ($self->extcmd == 2) {
		2935	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2936	} elsif ($self->extcmd == 1) {
		2937	#TODO: version 1, remove
		2938	unshift @msg, msgtype => "reply", msgid => $id;
		2939	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2940	}
		2941	}
1692		2942
1693	=item $success = $client->query ($flags, "text", \&cb)	2943	=item $success = $client->query ($flags, "text", \&cb)
1694		2944
1695	Queues a query to the client, calling the given callback with	2945	Queues a query to the client, calling the given callback with
1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2946	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2947	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1698		2948
1699	Queries can fail, so check the return code. Or don't, as queries will become	2949	Queries can fail, so check the return code. Or don't, as queries will
1700	reliable at some point in the future.	2950	become reliable at some point in the future.
1701		2951
1702	=cut	2952	=cut
1703		2953
1704	sub cf::client::query {	2954	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	2955	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	2963	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2964	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		2965
1716	$self->send_packet ($self->{query_queue}[0][0])	2966	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	2967	if @{ $self->{query_queue} } == 1;
		2968
		2969	1
1718	}	2970	}
1719		2971
1720	cf::client->attach (	2972	cf::client->attach (
		2973	on_connect => sub {
		2974	my ($ns) = @_;
		2975
		2976	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2977	},
1721	on_reply => sub {	2978	on_reply => sub {
1722	my ($ns, $msg) = @_;	2979	my ($ns, $msg) = @_;
1723		2980
1724	# this weird shuffling is so that direct followup queries	2981	# this weird shuffling is so that direct followup queries
1725	# get handled first	2982	# get handled first
1726	my $queue = delete $ns->{query_queue}	2983	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	2984	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		2985
1729	(shift @$queue)->[1]->($msg);	2986	(shift @$queue)->[1]->($msg);
		2987	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		2988
1731	push @{ $ns->{query_queue} }, @$queue;	2989	push @{ $ns->{query_queue} }, @$queue;
1732		2990
1733	if (@{ $ns->{query_queue} } == @$queue) {	2991	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	2992	if (@$queue) {
…		…
1736	} else {	2994	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2995	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	2996	}
1739	}	2997	}
1740	},	2998	},
		2999	on_exticmd => sub {
		3000	my ($ns, $buf) = @_;
		3001
		3002	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3003
		3004	if (ref $msg) {
		3005	my ($type, $reply, @payload) =
		3006	"ARRAY" eq ref $msg
		3007	? @$msg
		3008	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3009
		3010	my @reply;
		3011
		3012	if (my $cb = $EXTICMD{$type}) {
		3013	@reply = $cb->($ns, @payload);
		3014	}
		3015
		3016	$ns->ext_reply ($reply, @reply)
		3017	if $reply;
		3018
		3019	} else {
		3020	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3021	}
		3022
		3023	cf::override;
		3024	},
1741	);	3025	);
1742		3026
1743	=item $client->async (\&cb)	3027	=item $client->async (\&cb)
1744		3028
1745	Create a new coroutine, running the specified callback. The coroutine will	3029	Create a new coroutine, running the specified callback. The coroutine will
…		…
1786	our $safe = new Safe "safe";	3070	our $safe = new Safe "safe";
1787	our $safe_hole = new Safe::Hole;	3071	our $safe_hole = new Safe::Hole;
1788		3072
1789	$SIG{FPE} = 'IGNORE';	3073	$SIG{FPE} = 'IGNORE';
1790		3074
1791	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3075	$safe->permit_only (Opcode::opset qw(
		3076	:base_core :base_mem :base_orig :base_math
		3077	grepstart grepwhile mapstart mapwhile
		3078	sort time
		3079	));
1792		3080
1793	# here we export the classes and methods available to script code	3081	# here we export the classes and methods available to script code
1794		3082
1795	=pod	3083	=pod
1796		3084
1797	The following fucntions and emthods are available within a safe environment:	3085	The following functions and methods are available within a safe environment:
1798		3086
1799	cf::object contr pay_amount pay_player map	3087	cf::object
		3088	contr pay_amount pay_player map x y force_find force_add destroy
		3089	insert remove name archname title slaying race decrease split
		3090
1800	cf::object::player player	3091	cf::object::player
1801	cf::player peaceful	3092	player
1802	cf::map trigger	3093
		3094	cf::player
		3095	peaceful
		3096
		3097	cf::map
		3098	trigger
1803		3099
1804	=cut	3100	=cut
1805		3101
1806	for (	3102	for (
1807	["cf::object" => qw(contr pay_amount pay_player map)],	3103	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3104	insert remove inv name archname title slaying race
		3105	decrease split destroy)],
1808	["cf::object::player" => qw(player)],	3106	["cf::object::player" => qw(player)],
1809	["cf::player" => qw(peaceful)],	3107	["cf::player" => qw(peaceful)],
1810	["cf::map" => qw(trigger)],	3108	["cf::map" => qw(trigger)],
1811	) {	3109	) {
1812	no strict 'refs';	3110	no strict 'refs';
…		…
1883	=back	3181	=back
1884		3182
1885	=cut	3183	=cut
1886		3184
1887	#############################################################################	3185	#############################################################################
		3186	# the server's init and main functions
1888		3187
1889	=head2 EXTENSION DATABASE SUPPORT	3188	sub load_facedata($) {
		3189	my ($path) = @_;
1890		3190
1891	Crossfire maintains a very simple database for extension use. It can	3191	# HACK to clear player env face cache, we need some signal framework
1892	currently store anything that can be serialised using Storable, which	3192	# for this (global event?)
1893	excludes objects.	3193	%ext::player_env::MUSIC_FACE_CACHE = ();
1894		3194
1895	The parameter C<$family> should best start with the name of the extension	3195	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1896	using it, it should be unique.
1897		3196
1898	=over 4	3197	warn "loading facedata from $path\n";
1899		3198
1900	=item $hashref = cf::db_get $family	3199	my $facedata;
		3200	0 < aio_load $path, $facedata
		3201	or die "$path: $!";
1901		3202
1902	Return a hashref for use by the extension C<$family>, which can be	3203	$facedata = Coro::Storable::thaw $facedata;
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905		3204
1906	=item $value = cf::db_get $family => $key	3205	$facedata->{version} == 2
		3206	or cf::cleanup "$path: version mismatch, cannot proceed.";
1907		3207
1908	Returns a single value from the database	3208	# patch in the exptable
1909		3209	$facedata->{resource}{"res/exp_table"} = {
1910	=item cf::db_put $family => $hashref	3210	type => FT_RSRC,
1911		3211	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1912	Stores the given family hashref into the database. Updates are delayed, if
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}
1938
1939	my $pid;
1940
1941	sub db_save() {
1942	waitpid $pid, 0 if $pid;
1943	if (0 == ($pid = fork)) {
1944	$DB->{_meta}{version} = 1;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950
1951	my $dirty;
1952
1953	sub db_sync() {
1954	db_save if $dirty;
1955	undef $dirty;
1956	}
1957
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1959	db_sync;
1960	});	3212	};
		3213	cf::cede_to_tick;
1961		3214
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}	3215	{
		3216	my $faces = $facedata->{faceinfo};
1966		3217
1967	sub db_get($;$) {	3218	while (my ($face, $info) = each %$faces) {
1968	@_ >= 2	3219	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1969	? $DB->{$_[0]}{$_[1]}
1970	: ($DB->{$_[0]} ||= { })
1971	}
1972		3220
1973	sub db_put($$;$) {	3221	cf::face::set_visibility $idx, $info->{visibility};
1974	if (@_ >= 3) {	3222	cf::face::set_magicmap $idx, $info->{magicmap};
1975	$DB->{$_[0]}{$_[1]} = $_[2];	3223	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1976	} else {	3224	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1977	$DB->{$_[0]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981		3225
1982	cf::global->attach (	3226	cf::cede_to_tick;
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	3227	}
1987	);
1988	}
1989		3228
1990	#############################################################################	3229	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	3230	next unless $info->{smooth};
1992		3231
1993	sub cfg_load {	3232	my $idx = cf::face::find $face
		3233	or next;
		3234
		3235	if (my $smooth = cf::face::find $info->{smooth}) {
		3236	cf::face::set_smooth $idx, $smooth;
		3237	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3238	} else {
		3239	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3240	}
		3241
		3242	cf::cede_to_tick;
		3243	}
		3244	}
		3245
		3246	{
		3247	my $anims = $facedata->{animinfo};
		3248
		3249	while (my ($anim, $info) = each %$anims) {
		3250	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3251	cf::cede_to_tick;
		3252	}
		3253
		3254	cf::anim::invalidate_all; # d'oh
		3255	}
		3256
		3257	{
		3258	# TODO: for gcfclient pleasure, we should give resources
		3259	# that gcfclient doesn't grok a >10000 face index.
		3260	my $res = $facedata->{resource};
		3261
		3262	while (my ($name, $info) = each %$res) {
		3263	if (defined $info->{type}) {
		3264	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3265	my $data;
		3266
		3267	if ($info->{type} & 1) {
		3268	# prepend meta info
		3269
		3270	my $meta = $enc->encode ({
		3271	name => $name,
		3272	%{ $info->{meta} || {} },
		3273	});
		3274
		3275	$data = pack "(w/a*)*", $meta, $info->{data};
		3276	} else {
		3277	$data = $info->{data};
		3278	}
		3279
		3280	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3281	cf::face::set_type $idx, $info->{type};
		3282	} else {
		3283	$RESOURCE{$name} = $info;
		3284	}
		3285
		3286	cf::cede_to_tick;
		3287	}
		3288	}
		3289
		3290	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3291
		3292	1
		3293	}
		3294
		3295	cf::global->attach (on_resource_update => sub {
		3296	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3297	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3298
		3299	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3300	my $sound = $soundconf->{compat}[$_]
		3301	or next;
		3302
		3303	my $face = cf::face::find "sound/$sound->[1]";
		3304	cf::sound::set $sound->[0] => $face;
		3305	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3306	}
		3307
		3308	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3309	my $face = cf::face::find "sound/$v";
		3310	cf::sound::set $k => $face;
		3311	}
		3312	}
		3313	});
		3314
		3315	register_exticmd fx_want => sub {
		3316	my ($ns, $want) = @_;
		3317
		3318	while (my ($k, $v) = each %$want) {
		3319	$ns->fx_want ($k, $v);
		3320	}
		3321	};
		3322
		3323	sub load_resource_file($) {
		3324	my $guard = lock_acquire "load_resource_file";
		3325
		3326	my $status = load_resource_file_ $_[0];
		3327	get_slot 0.1, 100;
		3328	cf::arch::commit_load;
		3329
		3330	$status
		3331	}
		3332
		3333	sub reload_regions {
		3334	# HACK to clear player env face cache, we need some signal framework
		3335	# for this (global event?)
		3336	%ext::player_env::MUSIC_FACE_CACHE = ();
		3337
		3338	load_resource_file "$MAPDIR/regions"
		3339	or die "unable to load regions file\n";
		3340
		3341	for (cf::region::list) {
		3342	$_->{match} = qr/$_->{match}/
		3343	if exists $_->{match};
		3344	}
		3345	}
		3346
		3347	sub reload_facedata {
		3348	load_facedata "$DATADIR/facedata"
		3349	or die "unable to load facedata\n";
		3350	}
		3351
		3352	sub reload_archetypes {
		3353	load_resource_file "$DATADIR/archetypes"
		3354	or die "unable to load archetypes\n";
		3355	}
		3356
		3357	sub reload_treasures {
		3358	load_resource_file "$DATADIR/treasures"
		3359	or die "unable to load treasurelists\n";
		3360	}
		3361
		3362	sub reload_resources {
		3363	warn "reloading resource files...\n";
		3364
		3365	reload_facedata;
		3366	reload_archetypes;
		3367	reload_regions;
		3368	reload_treasures;
		3369
		3370	warn "finished reloading resource files\n";
		3371	}
		3372
		3373	sub init {
		3374	my $guard = freeze_mainloop;
		3375
		3376	reload_resources;
		3377	}
		3378
		3379	sub reload_config {
1994	open my $fh, "<:utf8", cf::confdir . "/config"	3380	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	3381	or return;
1996		3382
1997	local $/;	3383	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	3384	*CFG = YAML::Load <$fh>;
1999		3385
2000	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3386	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2001		3387
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3388	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3389	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		3390
2005	if (exists $CFG{mlockall}) {	3391	if (exists $CFG{mlockall}) {
2006	eval {	3392	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	3393	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	3394	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	3395	};
2010	warn $@ if $@;	3396	warn $@ if $@;
2011	}	3397	}
2012	}	3398	}
2013		3399
2014	sub main {	3400	sub main {
2015	# we must not ever block the main coroutine	3401	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	3402	local $Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3403	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2018	async { Event::one_event };	3404	(async {
		3405	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3406	EV::loop EV::LOOP_ONESHOT;
		3407	})->prio (Coro::PRIO_MAX);
2019	};	3408	};
2020		3409
2021	cfg_load;	3410	{
2022	db_load;	3411	my $guard = freeze_mainloop;
		3412	reload_config;
		3413	db_init;
2023	load_extensions;	3414	load_extensions;
		3415
		3416	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3417	evthread_start IO::AIO::poll_fileno;
		3418	}
		3419
2024	Event::loop;	3420	EV::loop;
2025	}	3421	}
2026		3422
2027	#############################################################################	3423	#############################################################################
2028	# initialisation	3424	# initialisation and cleanup
2029		3425
		3426	# install some emergency cleanup handlers
		3427	BEGIN {
		3428	our %SIGWATCHER = ();
		3429	for my $signal (qw(INT HUP TERM)) {
		3430	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3431	cf::cleanup "SIG$signal";
		3432	};
		3433	}
		3434	}
		3435
		3436	sub write_runtime_sync {
		3437	my $runtime = "$LOCALDIR/runtime";
		3438
		3439	# first touch the runtime file to show we are still running:
		3440	# the fsync below can take a very very long time.
		3441
		3442	IO::AIO::aio_utime $runtime, undef, undef;
		3443
		3444	my $guard = cf::lock_acquire "write_runtime";
		3445
		3446	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3447	or return;
		3448
		3449	my $value = $cf::RUNTIME + 90 + 10;
		3450	# 10 is the runtime save interval, for a monotonic clock
		3451	# 60 allows for the watchdog to kill the server.
		3452
		3453	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3454	and return;
		3455
		3456	# always fsync - this file is important
		3457	aio_fsync $fh
		3458	and return;
		3459
		3460	# touch it again to show we are up-to-date
		3461	aio_utime $fh, undef, undef;
		3462
		3463	close $fh
		3464	or return;
		3465
		3466	aio_rename "$runtime~", $runtime
		3467	and return;
		3468
		3469	warn "runtime file written.\n";
		3470
		3471	1
		3472	}
		3473
		3474	our $uuid_lock;
		3475	our $uuid_skip;
		3476
		3477	sub write_uuid_sync($) {
		3478	$uuid_skip ||= $_[0];
		3479
		3480	return if $uuid_lock;
		3481	local $uuid_lock = 1;
		3482
		3483	my $uuid = "$LOCALDIR/uuid";
		3484
		3485	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3486	or return;
		3487
		3488	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3489	$uuid_skip = 0;
		3490
		3491	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3492	and return;
		3493
		3494	# always fsync - this file is important
		3495	aio_fsync $fh
		3496	and return;
		3497
		3498	close $fh
		3499	or return;
		3500
		3501	aio_rename "$uuid~", $uuid
		3502	and return;
		3503
		3504	warn "uuid file written ($value).\n";
		3505
		3506	1
		3507
		3508	}
		3509
		3510	sub write_uuid($$) {
		3511	my ($skip, $sync) = @_;
		3512
		3513	$sync ? write_uuid_sync $skip
		3514	: async { write_uuid_sync $skip };
		3515	}
		3516
		3517	sub emergency_save() {
		3518	my $freeze_guard = cf::freeze_mainloop;
		3519
		3520	warn "enter emergency perl save\n";
		3521
		3522	cf::sync_job {
		3523	# use a peculiar iteration method to avoid tripping on perl
		3524	# refcount bugs in for. also avoids problems with players
		3525	# and maps saved/destroyed asynchronously.
		3526	warn "begin emergency player save\n";
		3527	for my $login (keys %cf::PLAYER) {
		3528	my $pl = $cf::PLAYER{$login} or next;
		3529	$pl->valid or next;
		3530	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3531	$pl->save;
		3532	}
		3533	warn "end emergency player save\n";
		3534
		3535	warn "begin emergency map save\n";
		3536	for my $path (keys %cf::MAP) {
		3537	my $map = $cf::MAP{$path} or next;
		3538	$map->valid or next;
		3539	$map->save;
		3540	}
		3541	warn "end emergency map save\n";
		3542
		3543	warn "begin emergency database checkpoint\n";
		3544	BDB::db_env_txn_checkpoint $DB_ENV;
		3545	warn "end emergency database checkpoint\n";
		3546
		3547	warn "begin write uuid\n";
		3548	write_uuid_sync 1;
		3549	warn "end write uuid\n";
		3550	};
		3551
		3552	warn "leave emergency perl save\n";
		3553	}
		3554
		3555	sub post_cleanup {
		3556	my ($make_core) = @_;
		3557
		3558	warn Carp::longmess "post_cleanup backtrace"
		3559	if $make_core;
		3560	}
		3561
2030	sub reload() {	3562	sub do_reload_perl() {
2031	# can/must only be called in main	3563	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	3564	if ($Coro::current != $Coro::main) {
2033	warn "can only reload from main coroutine\n";	3565	warn "can only reload from main coroutine";
2034	return;	3566	return;
2035	}	3567	}
2036		3568
2037	warn "reloading...";	3569	warn "reloading...";
2038		3570
2039	my $guard = freeze_mainloop;	3571	warn "entering sync_job";
		3572
		3573	cf::sync_job {
		3574	cf::write_runtime_sync; # external watchdog should not bark
2040	cf::emergency_save;	3575	cf::emergency_save;
		3576	cf::write_runtime_sync; # external watchdog should not bark
2041		3577
2042	eval {	3578	warn "syncing database to disk";
		3579	BDB::db_env_txn_checkpoint $DB_ENV;
		3580
2043	# if anything goes wrong in here, we should simply crash as we already saved	3581	# if anything goes wrong in here, we should simply crash as we already saved
2044		3582
2045	# cancel all watchers	3583	warn "flushing outstanding aio requests";
2046	for (Event::all_watchers) {	3584	for (;;) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;	3585	BDB::flush;
		3586	IO::AIO::flush;
		3587	Coro::cede_notself;
		3588	last unless IO::AIO::nreqs || BDB::nreqs;
		3589	warn "iterate...";
2048	}	3590	}
2049		3591
		3592	++$RELOAD;
		3593
2050	# cancel all extension coros	3594	warn "cancelling all extension coros";
2051	$_->cancel for values %EXT_CORO;	3595	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();	3596	%EXT_CORO = ();
2053		3597
2054	# unload all extensions	3598	warn "removing commands";
2055	for (@exts) {	3599	%COMMAND = ();
		3600
		3601	warn "removing ext/exti commands";
		3602	%EXTCMD = ();
		3603	%EXTICMD = ();
		3604
		3605	warn "unloading/nuking all extensions";
		3606	for my $pkg (@EXTS) {
2056	warn "unloading <$_>";	3607	warn "... unloading $pkg";
2057	unload_extension $_;	3608
		3609	if (my $cb = $pkg->can ("unload")) {
		3610	eval {
		3611	$cb->($pkg);
		3612	1
		3613	} or warn "$pkg unloaded, but with errors: $@";
2058	}	3614	}
2059		3615
		3616	warn "... nuking $pkg";
		3617	Symbol::delete_package $pkg;
		3618	}
		3619
2060	# unload all modules loaded from $LIBDIR	3620	warn "unloading all perl modules loaded from $LIBDIR";
2061	while (my ($k, $v) = each %INC) {	3621	while (my ($k, $v) = each %INC) {
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3622	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		3623
2064	warn "removing <$k>";	3624	warn "... unloading $k";
2065	delete $INC{$k};	3625	delete $INC{$k};
2066		3626
2067	$k =~ s/\.pm$//;	3627	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;	3628	$k =~ s/\//::/g;
2069		3629
…		…
2072	}	3632	}
2073		3633
2074	Symbol::delete_package $k;	3634	Symbol::delete_package $k;
2075	}	3635	}
2076		3636
2077	# sync database to disk
2078	cf::db_sync;
2079	IO::AIO::flush;
2080
2081	# get rid of safe::, as good as possible	3637	warn "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	3638	Symbol::delete_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3639	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		3640
2085	# remove register_script_function callbacks
2086	# TODO
2087
2088	# unload cf.pm "a bit"	3641	warn "unloading cf.pm \"a bit\"";
2089	delete $INC{"cf.pm"};	3642	delete $INC{"cf.pm"};
		3643	delete $INC{"cf/pod.pm"};
2090		3644
2091	# don't, removes xs symbols, too,	3645	# don't, removes xs symbols, too,
2092	# and global variables created in xs	3646	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	3647	#Symbol::delete_package __PACKAGE__;
2094		3648
2095	# reload cf.pm	3649	warn "unload completed, starting to reload now";
		3650
2096	warn "reloading cf.pm";	3651	warn "reloading cf.pm";
2097	require cf;	3652	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3653	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2099		3654
2100	# load config and database again	3655	warn "loading config and database again";
2101	cf::cfg_load;	3656	cf::reload_config;
2102	cf::db_load;
2103		3657
2104	# load extensions
2105	warn "load extensions";	3658	warn "loading extensions";
2106	cf::load_extensions;	3659	cf::load_extensions;
2107		3660
2108	# reattach attachments to objects	3661	warn "reattaching attachments to objects/players";
2109	warn "reattach";	3662	_global_reattach; # objects, sockets
2110	_global_reattach;	3663	warn "reattaching attachments to maps";
		3664	reattach $_ for values %MAP;
		3665	warn "reattaching attachments to players";
		3666	reattach $_ for values %PLAYER;
		3667
		3668	warn "leaving sync_job";
		3669
		3670	1
		3671	} or do {
		3672	warn $@;
		3673	cf::cleanup "error while reloading, exiting.";
2111	};	3674	};
2112		3675
2113	if ($@) {	3676	warn "reloaded";
2114	warn $@;
2115	warn "error while reloading, exiting.";
2116	exit 1;
2117	}
2118
2119	warn "reloaded successfully";
2120	};	3677	};
2121		3678
2122	#############################################################################	3679	our $RELOAD_WATCHER; # used only during reload
2123		3680
2124	unless ($LINK_MAP) {	3681	sub reload_perl() {
2125	$LINK_MAP = cf::map::new;	3682	# doing reload synchronously and two reloads happen back-to-back,
		3683	# coro crashes during coro_state_free->destroy here.
2126		3684
2127	$LINK_MAP->width (41);	3685	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2128	$LINK_MAP->height (41);	3686	do_reload_perl;
2129	$LINK_MAP->alloc;	3687	undef $RELOAD_WATCHER;
2130	$LINK_MAP->path ("{link}");	3688	};
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,
2137	cb => sub {
2138	$_[0]->w->cancel;
2139
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});
2158
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	3689	}
2164
2165	register "<global>", __PACKAGE__;
2166		3690
2167	register_command "reload" => sub {	3691	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	3692	my ($who, $arg) = @_;
2169		3693
2170	if ($who->flag (FLAG_WIZ)) {	3694	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	3695	$who->message ("reloading server.");
		3696	async {
		3697	$Coro::current->{desc} = "perl_reload";
		3698	reload_perl;
		3699	};
2174	}	3700	}
2175	};	3701	};
2176		3702
2177	unshift @INC, $LIBDIR;	3703	unshift @INC, $LIBDIR;
2178		3704
2179	$TICK_WATCHER = Event->timer (	3705	my $bug_warning = 0;
2180	reentrant => 0,	3706
2181	prio => 0,	3707	our @WAIT_FOR_TICK;
2182	at => $NEXT_TICK || $TICK,	3708	our @WAIT_FOR_TICK_BEGIN;
2183	data => WF_AUTOCANCEL,	3709
2184	cb => sub {	3710	sub wait_for_tick {
		3711	return if tick_inhibit || $Coro::current == $Coro::main;
		3712
		3713	my $signal = new Coro::Signal;
		3714	push @WAIT_FOR_TICK, $signal;
		3715	$signal->wait;
		3716	}
		3717
		3718	sub wait_for_tick_begin {
		3719	return if tick_inhibit || $Coro::current == $Coro::main;
		3720
		3721	my $signal = new Coro::Signal;
		3722	push @WAIT_FOR_TICK_BEGIN, $signal;
		3723	$signal->wait;
		3724	}
		3725
		3726	sub tick {
		3727	if ($Coro::current != $Coro::main) {
		3728	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3729	unless ++$bug_warning > 10;
		3730	return;
		3731	}
		3732
2185	cf::server_tick; # one server iteration	3733	cf::server_tick; # one server iteration
2186	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;
2188		3734
2189	# if we are delayed by four ticks or more, skip them all	3735	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3736	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2191		3737	Coro::async_pool {
2192	$TICK_WATCHER->at ($NEXT_TICK);	3738	$Coro::current->{desc} = "runtime saver";
2193	$TICK_WATCHER->start;
2194	},
2195	);
2196
2197	IO::AIO::max_poll_time $TICK * 0.2;
2198
2199	Event->io (
2200	fd => IO::AIO::poll_fileno,
2201	poll => 'r',
2202	prio => 5,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,
2209	after => 0,
2210	interval => 10,
2211	cb => sub {
2212	(Coro::unblock_sub {
2213	write_runtime	3739	write_runtime_sync
2214	or warn "ERROR: unable to write runtime file: $!";	3740	or warn "ERROR: unable to write runtime file: $!";
2215	})->();	3741	};
2216	},	3742	}
2217	);	3743
		3744	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3745	$sig->send;
		3746	}
		3747	while (my $sig = shift @WAIT_FOR_TICK) {
		3748	$sig->send;
		3749	}
		3750
		3751	$LOAD = ($NOW - $TICK_START) / $TICK;
		3752	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3753
		3754	if (0) {
		3755	if ($NEXT_TICK) {
		3756	my $jitter = $TICK_START - $NEXT_TICK;
		3757	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3758	warn "jitter $JITTER\n";#d#
		3759	}
		3760	}
		3761	}
		3762
		3763	{
		3764	# configure BDB
		3765
		3766	BDB::min_parallel 8;
		3767	BDB::max_poll_reqs $TICK * 0.1;
		3768	$Coro::BDB::WATCHER->priority (1);
		3769
		3770	unless ($DB_ENV) {
		3771	$DB_ENV = BDB::db_env_create;
		3772	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3773	| BDB::LOG_AUTOREMOVE, 1);
		3774	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3775	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3776
		3777	cf::sync_job {
		3778	eval {
		3779	BDB::db_env_open
		3780	$DB_ENV,
		3781	$BDBDIR,
		3782	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3783	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3784	0666;
		3785
		3786	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3787	};
		3788
		3789	cf::cleanup "db_env_open(db): $@" if $@;
		3790	};
		3791	}
		3792
		3793	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3794	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3795	};
		3796	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3797	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3798	};
		3799	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3800	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3801	};
		3802	}
		3803
		3804	{
		3805	# configure IO::AIO
		3806
		3807	IO::AIO::min_parallel 8;
		3808	IO::AIO::max_poll_time $TICK * 0.1;
		3809	$Coro::AIO::WATCHER->priority (1);
		3810	}
		3811
		3812	my $_log_backtrace;
		3813
		3814	sub _log_backtrace {
		3815	my ($msg, @addr) = @_;
		3816
		3817	$msg =~ s/\n//;
		3818
		3819	# limit the # of concurrent backtraces
		3820	if ($_log_backtrace < 2) {
		3821	++$_log_backtrace;
		3822	async {
		3823	$Coro::current->{desc} = "abt $msg";
		3824
		3825	my @bt = fork_call {
		3826	@addr = map { sprintf "%x", $_ } @addr;
		3827	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3828	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3829	or die "addr2line: $!";
		3830
		3831	my @funcs;
		3832	my @res = <$fh>;
		3833	chomp for @res;
		3834	while (@res) {
		3835	my ($func, $line) = splice @res, 0, 2, ();
		3836	push @funcs, "[$func] $line";
		3837	}
		3838
		3839	@funcs
		3840	};
		3841
		3842	LOG llevInfo, "[ABT] $msg\n";
		3843	LOG llevInfo, "[ABT] $_\n" for @bt;
		3844	--$_log_backtrace;
		3845	};
		3846	} else {
		3847	LOG llevInfo, "[ABT] $msg\n";
		3848	LOG llevInfo, "[ABT] [suppressed]\n";
		3849	}
		3850	}
		3851
		3852	# load additional modules
		3853	use cf::pod;
2218		3854
2219	END { cf::emergency_save }	3855	END { cf::emergency_save }
2220		3856
2221	1	3857	1
2222		3858

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