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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.142 by root, Fri Jan 5 21:51:42 2007 UTC vs.
Revision 1.434 by root, Thu May 29 03:27:37 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;
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 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::AnyEvent;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
		43	use Coro::AnyEvent;
18	use Coro::AIO;	44	use Coro::AIO;
		45	use Coro::BDB;
		46	use Coro::Storable;
		47	use Coro::Util ();
19		48
		49	use JSON::XS 2.01 ();
		50	use BDB ();
		51	use Data::Dumper;
20	use Digest::MD5;	52	use Digest::MD5;
21	use Fcntl;	53	use Fcntl;
		54	use YAML ();
22	use IO::AIO 2.31 ();	55	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	56	use Time::HiRes;
		57	use Compress::LZF;
		58	use Digest::MD5 ();
25		59
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	60	AnyEvent::detect;
27		61
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	62	IO::AIO::max_poll_reqs 1;#d#
29	$YAML::Syck::ImplicitUnicode = 1;	63
		64	# configure various modules to our taste
		65	#
		66	$Storable::canonical = 1; # reduce rsync transfers
		67	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		68	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		69
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		71
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	72	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		73
35	our %COMMAND = ();	74	our %COMMAND = ();
36	our %COMMAND_TIME = ();	75	our %COMMAND_TIME = ();
		76
		77	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	78	our %EXTCMD = ();
		79	our %EXTICMD = ();
		80	our %EXT_CORO = (); # coroutines bound to extensions
		81	our %EXT_MAP = (); # pluggable maps
38		82
		83	our $RELOAD; # number of reloads so far
39	our @EVENT;	84	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		85
42	our $TICK = MAX_TIME * 1e-6;	86	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	87	our $DATADIR = datadir;
		88	our $LIBDIR = "$DATADIR/ext";
		89	our $PODDIR = "$DATADIR/pod";
		90	our $MAPDIR = "$DATADIR/" . mapdir;
		91	our $LOCALDIR = localdir;
		92	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		93	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		94	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		95	our $RANDOMDIR = "$LOCALDIR/random";
		96	our $BDBDIR = "$LOCALDIR/db";
		97	our %RESOURCE;
		98
		99	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		100	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	101	our $NEXT_TICK;
45	our $NOW;	102	our $USE_FSYNC = 1; # use fsync to write maps - default off
		103
		104	our $BDB_DEADLOCK_WATCHER;
		105	our $BDB_CHECKPOINT_WATCHER;
		106	our $BDB_TRICKLE_WATCHER;
		107	our $DB_ENV;
46		108
47	our %CFG;	109	our %CFG;
48		110
49	our $UPTIME; $UPTIME ||= time;	111	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	112	our $RUNTIME;
		113	our $NOW;
51		114
52	our %MAP; # all maps	115	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	116	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	117	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	118
		119	# used to convert map paths into valid unix filenames by replacing / by ∕
		120	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		121
		122	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		123	our $LOADAVG; # same thing, but with alpha-smoothing
		124	our $JITTER; # average jitter
		125	our $TICK_START; # for load detecting purposes
56		126
57	binmode STDOUT;	127	binmode STDOUT;
58	binmode STDERR;	128	binmode STDERR;
59		129
60	# read virtual server time, if available	130	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	131	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	132	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	133	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	134	$RUNTIME = <$fh> + 0.;
65	}	135	}
66		136
67	mkdir cf::localdir;	137	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	138	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		139
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	140	our $EMERGENCY_POSITION;
		141
		142	sub cf::map::normalise;
76		143
77	#############################################################################	144	#############################################################################
78		145
79	=head2 GLOBAL VARIABLES	146	=head2 GLOBAL VARIABLES
80		147
…		…
87	=item $cf::RUNTIME	154	=item $cf::RUNTIME
88		155
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	156	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	157	every server tick.
91		158
92	=item $cf::LIBDIR	159	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		160	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		161	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		162
94	The perl library directory, where extensions and cf-specific modules can	163	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	164	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		165	unique-items directory, player file directory, random maps directory and
		166	database environment.
96		167
97	=item $cf::NOW	168	=item $cf::NOW
98		169
99	The time of the last (current) server tick.	170	The time of the last (current) server tick.
100		171
101	=item $cf::TICK	172	=item $cf::TICK
102		173
103	The interval between server ticks, in seconds.	174	The interval between server ticks, in seconds.
104		175
		176	=item $cf::LOADAVG
		177
		178	The current CPU load on the server (alpha-smoothed), as a value between 0
		179	(none) and 1 (overloaded), indicating how much time is spent on processing
		180	objects per tick. Healthy values are < 0.5.
		181
		182	=item $cf::LOAD
		183
		184	The raw value load value from the last tick.
		185
105	=item %cf::CFG	186	=item %cf::CFG
106		187
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	188	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	189	from wherever your confdir points to.
		190
		191	=item cf::wait_for_tick, cf::wait_for_tick_begin
		192
		193	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		194	returns directly I<after> the tick processing (and consequently, can only wake one process
		195	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		196
		197	=item @cf::INVOKE_RESULTS
		198
		199	This array contains the results of the last C<invoke ()> call. When
		200	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		201	that call.
109		202
110	=back	203	=back
111		204
112	=cut	205	=cut
113		206
114	BEGIN {	207	BEGIN {
115	*CORE::GLOBAL::warn = sub {	208	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	209	my $msg = join "", @_;
117	utf8::encode $msg;
118		210
119	$msg .= "\n"	211	$msg .= "\n"
120	unless $msg =~ /\n$/;	212	unless $msg =~ /\n$/;
121		213
		214	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		215
122	LOG llevError, "cfperl: $msg";	216	LOG llevError, $msg;
123	};	217	};
124	}	218	}
		219
		220	$Coro::State::DIEHOOK = sub {
		221	return unless $^S eq 0; # "eq", not "=="
		222
		223	if ($Coro::current == $Coro::main) {#d#
		224	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		225	return;#d#
		226	}#d#
		227
		228	# kill coroutine otherwise
		229	warn Carp::longmess $_[0];
		230	Coro::terminate
		231	};
		232
		233	$SIG{__DIE__} = sub { }; #d#?
125		234
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	235	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	236	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	237	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	238	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	239	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		240	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	241	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		242
133	# we bless all objects into (empty) derived classes to force a method lookup	243	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	244	# within the Safe compartment.
135	for my $pkg (qw(	245	for my $pkg (qw(
136	cf::global cf::attachable	246	cf::global cf::attachable
…		…
141	)) {	251	)) {
142	no strict 'refs';	252	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	253	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	254	}
145		255
146	$Event::DIED = sub {	256	$EV::DIED = sub {
147	warn "error in event callback: @_";	257	warn "error in event callback: @_";
148	};	258	};
149		259
150	my %ext_pkg;	260	#############################################################################
151	my @exts;
152	my @hook;
153		261
154	=head2 UTILITY FUNCTIONS	262	=head2 UTILITY FUNCTIONS
155		263
156	=over 4	264	=over 4
157		265
158	=cut	266	=item dumpval $ref
159		267
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	268	=cut
161		269
		270	sub dumpval {
		271	eval {
		272	local $SIG{__DIE__};
		273	my $d;
		274	if (1) {
		275	$d = new Data::Dumper([$_[0]], ["*var"]);
		276	$d->Terse(1);
		277	$d->Indent(2);
		278	$d->Quotekeys(0);
		279	$d->Useqq(1);
		280	#$d->Bless(...);
		281	$d->Seen($_[1]) if @_ > 1;
		282	$d = $d->Dump();
		283	}
		284	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		285	$d
		286	} || "[unable to dump $_[0]: '$@']";
		287	}
		288
162	=item $ref = cf::from_json $json	289	=item $ref = cf::decode_json $json
163		290
164	Converts a JSON string into the corresponding perl data structure.	291	Converts a JSON string into the corresponding perl data structure.
165		292
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	293	=item $json = cf::encode_json $ref
174		294
175	Converts a perl data structure into its JSON representation.	295	Converts a perl data structure into its JSON representation.
176		296
177	=cut	297	=cut
178		298
179	sub to_json($) {	299	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	300
181	JSON::Syck::Dump $_[0]	301	sub encode_json($) { $json_coder->encode ($_[0]) }
182	}	302	sub decode_json($) { $json_coder->decode ($_[0]) }
183		303
184	=item cf::lock_wait $string	304	=item cf::lock_wait $string
185		305
186	Wait until the given lock is available. See cf::lock_acquire.	306	Wait until the given lock is available. See cf::lock_acquire.
187		307
…		…
190	Wait until the given lock is available and then acquires it and returns	310	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,	311	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	312	for example when the coroutine gets canceled), the lock is automatically
193	returned.	313	returned.
194		314
		315	Locks are *not* recursive, locking from the same coro twice results in a
		316	deadlocked coro.
		317
195	Lock names should begin with a unique identifier (for example, cf::map::find	318	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	319	uses map_find and cf::map::load uses map_load).
197		320
		321	=item $locked = cf::lock_active $string
		322
		323	Return true if the lock is currently active, i.e. somebody has locked it.
		324
198	=cut	325	=cut
199		326
200	our %LOCK;	327	our %LOCK;
		328	our %LOCKER;#d#
201		329
202	sub lock_wait($) {	330	sub lock_wait($) {
203	my ($key) = @_;	331	my ($key) = @_;
		332
		333	if ($LOCKER{$key} == $Coro::current) {#d#
		334	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		335	return;#d#
		336	}#d#
204		337
205	# wait for lock, if any	338	# wait for lock, if any
206	while ($LOCK{$key}) {	339	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	340	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	341	Coro::schedule;
…		…
214		347
215	# wait, to be sure we are not locked	348	# wait, to be sure we are not locked
216	lock_wait $key;	349	lock_wait $key;
217		350
218	$LOCK{$key} = [];	351	$LOCK{$key} = [];
		352	$LOCKER{$key} = $Coro::current;#d#
219		353
220	Coro::guard {	354	Coro::guard {
		355	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	356	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	357	$_->ready for @{ delete $LOCK{$key} };
223	}	358	}
224	}	359	}
225		360
		361	sub lock_active($) {
		362	my ($key) = @_;
		363
		364	! ! $LOCK{$key}
		365	}
		366
226	sub freeze_mainloop {	367	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	368	tick_inhibit_inc;
228		369
229	my $guard = Coro::guard { $TICK_WATCHER->start };	370	Coro::guard \&tick_inhibit_dec;
230	$TICK_WATCHER->stop;	371	}
231	$guard	372
		373	=item cf::periodic $interval, $cb
		374
		375	Like EV::periodic, but randomly selects a starting point so that the actions
		376	get spread over timer.
		377
		378	=cut
		379
		380	sub periodic($$) {
		381	my ($interval, $cb) = @_;
		382
		383	my $start = rand List::Util::min 180, $interval;
		384
		385	EV::periodic $start, $interval, 0, $cb
		386	}
		387
		388	=item cf::get_slot $time[, $priority[, $name]]
		389
		390	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		391	This call blocks and returns only when you have at least C<$time> seconds
		392	of cpu time till the next tick. The slot is only valid till the next cede.
		393
		394	The optional C<$name> can be used to identify the job to run. It might be
		395	used for statistical purposes and should identify the same time-class.
		396
		397	Useful for short background jobs.
		398
		399	=cut
		400
		401	our @SLOT_QUEUE;
		402	our $SLOT_QUEUE;
		403
		404	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		405	$SLOT_QUEUE = Coro::async {
		406	$Coro::current->desc ("timeslot manager");
		407
		408	my $signal = new Coro::Signal;
		409
		410	while () {
		411	next_job:
		412	my $avail = cf::till_tick;
		413	if ($avail > 0.01) {
		414	for (0 .. $#SLOT_QUEUE) {
		415	if ($SLOT_QUEUE[$_][0] < $avail) {
		416	my $job = splice @SLOT_QUEUE, $_, 1, ();
		417	$job->[2]->send;
		418	Coro::cede;
		419	goto next_job;
		420	}
		421	}
		422	}
		423
		424	if (@SLOT_QUEUE) {
		425	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		426	push @cf::WAIT_FOR_TICK, $signal;
		427	$signal->wait;
		428	} else {
		429	Coro::schedule;
		430	}
		431	}
		432	};
		433
		434	sub get_slot($;$$) {
		435	return if tick_inhibit || $Coro::current == $Coro::main;
		436
		437	my ($time, $pri, $name) = @_;
		438
		439	$time = $TICK * .6 if $time > $TICK * .6;
		440	my $sig = new Coro::Signal;
		441
		442	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		443	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		444	$SLOT_QUEUE->ready;
		445	$sig->wait;
232	}	446	}
233		447
234	=item cf::async { BLOCK }	448	=item cf::async { BLOCK }
235		449
236	Currently the same as Coro::async_pool, meaning you cannot use	450	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		455
242	BEGIN { *async = \&Coro::async_pool }	456	BEGIN { *async = \&Coro::async_pool }
243		457
244	=item cf::sync_job { BLOCK }	458	=item cf::sync_job { BLOCK }
245		459
246	The design of crossfire+ requires that the main coro ($Coro::main) is	460	The design of Deliantra requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	461	is always able to handle events or runnable, as Deliantra is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	462	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		463	acceptable.
249		464
250	If it must be done, put the blocking parts into C<sync_job>. This will run	465	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	466	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	467	server will be frozen during this time, so the block should either finish
253	fast or be very important.	468	fast or be very important.
…		…
256		471
257	sub sync_job(&) {	472	sub sync_job(&) {
258	my ($job) = @_;	473	my ($job) = @_;
259		474
260	if ($Coro::current == $Coro::main) {	475	if ($Coro::current == $Coro::main) {
		476	my $time = EV::time;
		477
261	# this is the main coro, too bad, we have to block	478	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	479	# till the operation succeeds, freezing the server :/
263		480
264	# TODO: use suspend/resume instead	481	LOG llevError, Carp::longmess "sync job";#d#
265	# (but this is cancel-safe)	482
266	my $freeze_guard = freeze_mainloop;	483	my $freeze_guard = freeze_mainloop;
267		484
268	my $busy = 1;	485	my $busy = 1;
269	my @res;	486	my @res;
270		487
271	(async {	488	(async {
		489	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	490	@res = eval { $job->() };
273	warn $@ if $@;	491	warn $@ if $@;
274	undef $busy;	492	undef $busy;
275	})->prio (Coro::PRIO_MAX);	493	})->prio (Coro::PRIO_MAX);
276		494
277	while ($busy) {	495	while ($busy) {
278	Coro::cede or Event::one_event;	496	if (Coro::nready) {
		497	Coro::cede_notself;
		498	} else {
		499	EV::loop EV::LOOP_ONESHOT;
279	}	500	}
		501	}
		502
		503	my $time = EV::time - $time;
		504
		505	$TICK_START += $time; # do not account sync jobs to server load
280		506
281	wantarray ? @res : $res[0]	507	wantarray ? @res : $res[0]
282	} else {	508	} else {
283	# we are in another coroutine, how wonderful, everything just works	509	# we are in another coroutine, how wonderful, everything just works
284		510
…		…
286	}	512	}
287	}	513	}
288		514
289	=item $coro = cf::async_ext { BLOCK }	515	=item $coro = cf::async_ext { BLOCK }
290		516
291	Like async, but this coro is automcatially being canceled when the	517	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	518	extension calling this is being unloaded.
293		519
294	=cut	520	=cut
295		521
296	sub async_ext(&) {	522	sub async_ext(&) {
…		…
304	$EXT_CORO{$coro+0} = $coro;	530	$EXT_CORO{$coro+0} = $coro;
305		531
306	$coro	532	$coro
307	}	533	}
308		534
309	sub write_runtime {	535	=item fork_call { }, $args
310	my $runtime = cf::localdir . "/runtime";
311		536
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	537	Executes the given code block with the given arguments in a seperate
313	or return;	538	process, returning the results. Everything must be serialisable with
		539	Coro::Storable. May, of course, block. Note that the executed sub may
		540	never block itself or use any form of event handling.
314		541
315	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	542	=cut
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;
318		543
319	aio_fsync $fh	544	sub fork_call(&@) {
320	and return;	545	my ($cb, @args) = @_;
321		546
322	close $fh	547	# we seemingly have to make a local copy of the whole thing,
323	or return;	548	# otherwise perl prematurely frees the stuff :/
		549	# TODO: investigate and fix (likely this will be rather laborious)
324		550
325	aio_rename "$runtime~", $runtime	551	my @res = Coro::Util::fork_eval {
326	and return;	552	reset_signals;
		553	&$cb
		554	}, @args;
327		555
		556	wantarray ? @res : $res[-1]
		557	}
		558
		559	=item $coin = coin_from_name $name
		560
		561	=cut
		562
		563	our %coin_alias = (
		564	"silver" => "silvercoin",
		565	"silvercoin" => "silvercoin",
		566	"silvercoins" => "silvercoin",
		567	"gold" => "goldcoin",
		568	"goldcoin" => "goldcoin",
		569	"goldcoins" => "goldcoin",
		570	"platinum" => "platinacoin",
		571	"platinumcoin" => "platinacoin",
		572	"platinumcoins" => "platinacoin",
		573	"platina" => "platinacoin",
		574	"platinacoin" => "platinacoin",
		575	"platinacoins" => "platinacoin",
		576	"royalty" => "royalty",
		577	"royalties" => "royalty",
		578	);
		579
		580	sub coin_from_name($) {
		581	$coin_alias{$_[0]}
		582	? cf::arch::find $coin_alias{$_[0]}
		583	: undef
		584	}
		585
		586	=item $value = cf::db_get $family => $key
		587
		588	Returns a single value from the environment database.
		589
		590	=item cf::db_put $family => $key => $value
		591
		592	Stores the given C<$value> in the family. It can currently store binary
		593	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		594
		595	=item $db = cf::db_table "name"
		596
		597	Create and/or open a new database table. The string must not be "db" and must be unique
		598	within each server.
		599
		600	=cut
		601
		602	sub db_table($) {
		603	my ($name) = @_;
		604	my $db = BDB::db_create $DB_ENV;
		605
		606	eval {
		607	$db->set_flags (BDB::CHKSUM);
		608
		609	utf8::encode $name;
		610	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		611	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		612	cf::cleanup "db_open(db): $!" if $!;
		613	};
		614	cf::cleanup "db_open(db): $@" if $@;
		615
		616	$db
		617	}
		618
		619	our $DB;
		620
		621	sub db_init {
		622	cf::sync_job {
		623	$DB ||= db_table "db";
		624	};
		625	}
		626
		627	sub db_get($$) {
		628	my $key = "$_[0]/$_[1]";
		629
		630	cf::sync_job {
		631	BDB::db_get $DB, undef, $key, my $data;
		632
		633	$! ? ()
		634	: $data
328	1	635	}
		636	}
		637
		638	sub db_put($$$) {
		639	BDB::dbreq_pri 4;
		640	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		641	}
		642
		643	=item cf::cache $id => [$paths...], $processversion => $process
		644
		645	Generic caching function that returns the value of the resource $id,
		646	caching and regenerating as required.
		647
		648	This function can block.
		649
		650	=cut
		651
		652	sub cache {
		653	my ($id, $src, $processversion, $process) = @_;
		654
		655	my $meta =
		656	join "\x00",
		657	$processversion,
		658	map {
		659	aio_stat $_
		660	and Carp::croak "$_: $!";
		661
		662	($_, (stat _)[7,9])
		663	} @$src;
		664
		665	my $dbmeta = db_get cache => "$id/meta";
		666	if ($dbmeta ne $meta) {
		667	# changed, we may need to process
		668
		669	my @data;
		670	my $md5;
		671
		672	for (0 .. $#$src) {
		673	0 <= aio_load $src->[$_], $data[$_]
		674	or Carp::croak "$src->[$_]: $!";
		675	}
		676
		677	# if processing is expensive, check
		678	# checksum first
		679	if (1) {
		680	$md5 =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	cf::cede_to_tick;
		685	($src->[$_], Digest::MD5::md5_hex $data[$_])
		686	} 0.. $#$src;
		687
		688
		689	my $dbmd5 = db_get cache => "$id/md5";
		690	if ($dbmd5 eq $md5) {
		691	db_put cache => "$id/meta", $meta;
		692
		693	return db_get cache => "$id/data";
		694	}
		695	}
		696
		697	my $t1 = Time::HiRes::time;
		698	my $data = $process->(\@data);
		699	my $t2 = Time::HiRes::time;
		700
		701	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		702
		703	db_put cache => "$id/data", $data;
		704	db_put cache => "$id/md5" , $md5;
		705	db_put cache => "$id/meta", $meta;
		706
		707	return $data;
		708	}
		709
		710	db_get cache => "$id/data"
		711	}
		712
		713	=item cf::datalog type => key => value, ...
		714
		715	Log a datalog packet of the given type with the given key-value pairs.
		716
		717	=cut
		718
		719	sub datalog($@) {
		720	my ($type, %kv) = @_;
		721	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
329	}	722	}
330		723
331	=back	724	=back
332		725
333	=cut	726	=cut
334
335	#############################################################################
336
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454		727
455	#############################################################################	728	#############################################################################
456		729
457	=head2 ATTACHABLE OBJECTS	730	=head2 ATTACHABLE OBJECTS
458		731
…		…
460	attach callbacks/event handlers (a collection of which is called an "attachment")	733	attach callbacks/event handlers (a collection of which is called an "attachment")
461	to it. All such attachable objects support the following methods.	734	to it. All such attachable objects support the following methods.
462		735
463	In the following description, CLASS can be any of C<global>, C<object>	736	In the following description, CLASS can be any of C<global>, C<object>
464	C<player>, C<client> or C<map> (i.e. the attachable objects in	737	C<player>, C<client> or C<map> (i.e. the attachable objects in
465	crossfire+).	738	Deliantra).
466		739
467	=over 4	740	=over 4
468		741
469	=item $attachable->attach ($attachment, key => $value...)	742	=item $attachable->attach ($attachment, key => $value...)
470		743
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	857	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	858	our @CB_MAP = ();
586		859
587	my %attachment;	860	my %attachment;
588		861
		862	sub cf::attachable::thawer_merge {
		863	# simply override everything except _meta
		864	local $_[0]{_meta};
		865	%{$_[0]} = %{$_[1]};
		866	}
		867
589	sub _attach_cb($$$$) {	868	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	869	my ($registry, $event, $prio, $cb) = @_;
591		870
592	use sort 'stable';	871	use sort 'stable';
593		872
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	906	$registry = $CB_TYPE[$object_type] ||= [];
628		907
629	} elsif ($type eq "subtype") {	908	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	909	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	910	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	911	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		912
634	} elsif ($type eq "package") {	913	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	914	my $pkg = shift @arg;
636		915
637	while (my ($name, $id) = each %cb_id) {	916	while (my ($name, $id) = each %cb_id) {
…		…
666	_attach $registry, $klass, @attach;	945	_attach $registry, $klass, @attach;
667	}	946	}
668		947
669	$obj->{$name} = \%arg;	948	$obj->{$name} = \%arg;
670	} else {	949	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	950	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	951	}
673		952
674	$obj->{_attachment}{$name} = undef;	953	$obj->{_attachment}{$name} = undef;
675	}	954	}
676		955
…		…
678	if (ref $_[0]) {	957	if (ref $_[0]) {
679	_object_attach @_;	958	_object_attach @_;
680	} else {	959	} else {
681	_attach shift->_attach_registry, @_;	960	_attach shift->_attach_registry, @_;
682	}	961	}
		962	_recalc_want;
683	};	963	};
684		964
685	# all those should be optimised	965	# all those should be optimised
686	sub cf::attachable::detach {	966	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	967	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	970	delete $obj->{_attachment}{$name};
691	reattach ($obj);	971	reattach ($obj);
692	} else {	972	} else {
693	Carp::croak "cannot, currently, detach class attachments";	973	Carp::croak "cannot, currently, detach class attachments";
694	}	974	}
		975	_recalc_want;
695	};	976	};
696		977
697	sub cf::attachable::attached {	978	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	979	my ($obj, $name) = @_;
699		980
…		…
714	";	995	";
715	die if $@;	996	die if $@;
716	}	997	}
717		998
718	our $override;	999	our $override;
719	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1000	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
720		1001
721	sub override {	1002	sub override {
722	$override = 1;	1003	$override = 1;
723	@invoke_results = ();	1004	@INVOKE_RESULTS = (@_);
724	}	1005	}
725		1006
726	sub do_invoke {	1007	sub do_invoke {
727	my $event = shift;	1008	my $event = shift;
728	my $callbacks = shift;	1009	my $callbacks = shift;
729		1010
730	@invoke_results = ();	1011	@INVOKE_RESULTS = ();
731		1012
732	local $override;	1013	local $override;
733		1014
734	for (@$callbacks) {	1015	for (@$callbacks) {
735	eval { &{$_->[1]} };	1016	eval { &{$_->[1]} };
…		…
744	}	1025	}
745		1026
746	0	1027	0
747	}	1028	}
748		1029
749	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1030	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
750		1031
751	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1032	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
752		1033
753	Generate an object-specific event with the given arguments.	1034	Generate an object-specific event with the given arguments.
754		1035
755	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1036	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
756	removed in future versions), and there is no public API to access override	1037	removed in future versions), and there is no public API to access override
757	results (if you must, access C<@cf::invoke_results> directly).	1038	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		1039
759	=back	1040	=back
760		1041
761	=cut	1042	=cut
762		1043
763	#############################################################################	1044	#############################################################################
764	# object support	1045	# object support
		1046
		1047	sub _object_equal($$);
		1048	sub _object_equal($$) {
		1049	my ($a, $b) = @_;
		1050
		1051	return 0 unless (ref $a) eq (ref $b);
		1052
		1053	if ("HASH" eq ref $a) {
		1054	my @ka = keys %$a;
		1055	my @kb = keys %$b;
		1056
		1057	return 0 if @ka != @kb;
		1058
		1059	for (0 .. $#ka) {
		1060	return 0 unless $ka[$_] eq $kb[$_];
		1061	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1062	}
		1063
		1064	} elsif ("ARRAY" eq ref $a) {
		1065
		1066	return 0 if @$a != @$b;
		1067
		1068	for (0 .. $#$a) {
		1069	return 0 unless _object_equal $a->[$_], $b->[$_];
		1070	}
		1071
		1072	} elsif ($a ne $b) {
		1073	return 0;
		1074	}
		1075
		1076	1
		1077	}
		1078
		1079	our $SLOW_MERGES;#d#
		1080	sub _can_merge {
		1081	my ($ob1, $ob2) = @_;
		1082
		1083	++$SLOW_MERGES;#d#
		1084
		1085	# we do the slow way here
		1086	return _object_equal $ob1, $ob2
		1087	}
765		1088
766	sub reattach {	1089	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1090	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1091	my ($obj) = @_;
		1092
		1093	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		1094
770	my $registry = $obj->registry;	1095	my $registry = $obj->registry;
771		1096
772	@$registry = ();	1097	@$registry = ();
773		1098
…		…
788	cf::attachable->attach (	1113	cf::attachable->attach (
789	prio => -1000000,	1114	prio => -1000000,
790	on_instantiate => sub {	1115	on_instantiate => sub {
791	my ($obj, $data) = @_;	1116	my ($obj, $data) = @_;
792		1117
793	$data = from_json $data;	1118	$data = decode_json $data;
794		1119
795	for (@$data) {	1120	for (@$data) {
796	my ($name, $args) = @$_;	1121	my ($name, $args) = @$_;
797		1122
798	$obj->attach ($name, %{$args || {} });	1123	$obj->attach ($name, %{$args || {} });
…		…
814	sub object_freezer_save {	1139	sub object_freezer_save {
815	my ($filename, $rdata, $objs) = @_;	1140	my ($filename, $rdata, $objs) = @_;
816		1141
817	sync_job {	1142	sync_job {
818	if (length $$rdata) {	1143	if (length $$rdata) {
		1144	utf8::decode (my $decname = $filename);
819	warn sprintf "saving %s (%d,%d)\n",	1145	warn sprintf "saving %s (%d,%d)\n",
820	$filename, length $$rdata, scalar @$objs;	1146	$decname, length $$rdata, scalar @$objs;
821		1147
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1148	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	1149	aio_chmod $fh, SAVE_MODE;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1150	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
825	aio_fsync $fh;	1151	aio_fsync $fh if $cf::USE_FSYNC;
826	close $fh;	1152	aio_close $fh;
827		1153
828	if (@$objs) {	1154	if (@$objs) {
829	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1155	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1156	aio_chmod $fh, SAVE_MODE;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	1157	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	1158	aio_write $fh, 0, (length $data), $data, 0;
833	aio_fsync $fh;	1159	aio_fsync $fh if $cf::USE_FSYNC;
834	close $fh;	1160	aio_close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	1161	aio_rename "$filename.pst~", "$filename.pst";
836	}	1162	}
837	} else {	1163	} else {
838	aio_unlink "$filename.pst";	1164	aio_unlink "$filename.pst";
839	}	1165	}
…		…
844	}	1170	}
845	} else {	1171	} else {
846	aio_unlink $filename;	1172	aio_unlink $filename;
847	aio_unlink "$filename.pst";	1173	aio_unlink "$filename.pst";
848	}	1174	}
849	}	1175	};
850	}	1176	}
851		1177
852	sub object_freezer_as_string {	1178	sub object_freezer_as_string {
853	my ($rdata, $objs) = @_;	1179	my ($rdata, $objs) = @_;
854		1180
…		…
866	or return;	1192	or return;
867		1193
868	unless (aio_stat "$filename.pst") {	1194	unless (aio_stat "$filename.pst") {
869	(aio_load "$filename.pst", $av) >= 0	1195	(aio_load "$filename.pst", $av) >= 0
870	or return;	1196	or return;
		1197
871	$av = eval { (Storable::thaw $av)->{objs} };	1198	my $st = eval { Coro::Storable::thaw $av };
		1199	$av = $st->{objs};
872	}	1200	}
873		1201
		1202	utf8::decode (my $decname = $filename);
874	warn sprintf "loading %s (%d)\n",	1203	warn sprintf "loading %s (%d,%d)\n",
875	$filename, length $data, scalar @{$av || []};#d#	1204	$decname, length $data, scalar @{$av || []};
		1205
876	return ($data, $av);	1206	($data, $av)
877	}	1207	}
		1208
		1209	=head2 COMMAND CALLBACKS
		1210
		1211	=over 4
		1212
		1213	=cut
878		1214
879	#############################################################################	1215	#############################################################################
880	# command handling &c	1216	# command handling &c
881		1217
882	=item cf::register_command $name => \&callback($ob,$args);	1218	=item cf::register_command $name => \&callback($ob,$args);
…		…
895	push @{ $COMMAND{$name} }, [$caller, $cb];	1231	push @{ $COMMAND{$name} }, [$caller, $cb];
896	}	1232	}
897		1233
898	=item cf::register_extcmd $name => \&callback($pl,$packet);	1234	=item cf::register_extcmd $name => \&callback($pl,$packet);
899		1235
900	Register a callbackf ro execution when the client sends an extcmd packet.	1236	Register a callback for execution when the client sends an (synchronous)
		1237	extcmd packet. Ext commands will be processed in the order they are
		1238	received by the server, like other user commands. The first argument is
		1239	the logged-in player. Ext commands can only be processed after a player
		1240	has logged in successfully.
901		1241
902	If the callback returns something, it is sent back as if reply was being	1242	If the callback returns something, it is sent back as if reply was being
903	called.	1243	called.
904		1244
		1245	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1246
		1247	Register a callback for execution when the client sends an (asynchronous)
		1248	exticmd packet. Exti commands are processed by the server as soon as they
		1249	are received, i.e. out of order w.r.t. other commands. The first argument
		1250	is a client socket. Exti commands can be received anytime, even before
		1251	log-in.
		1252
		1253	If the callback returns something, it is sent back as if reply was being
		1254	called.
		1255
905	=cut	1256	=cut
906		1257
907	sub register_extcmd {	1258	sub register_extcmd {
908	my ($name, $cb) = @_;	1259	my ($name, $cb) = @_;
909		1260
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	1261	$EXTCMD{$name} = $cb;
		1262	}
		1263
		1264	sub register_exticmd {
		1265	my ($name, $cb) = @_;
		1266
		1267	$EXTICMD{$name} = $cb;
914	}	1268	}
915		1269
916	cf::player->attach (	1270	cf::player->attach (
917	on_command => sub {	1271	on_command => sub {
918	my ($pl, $name, $params) = @_;	1272	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1281	cf::override;
928	},	1282	},
929	on_extcmd => sub {	1283	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1284	my ($pl, $buf) = @_;
931		1285
932	my $msg = eval { from_json $buf };	1286	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1287
934	if (ref $msg) {	1288	if (ref $msg) {
		1289	my ($type, $reply, @payload) =
		1290	"ARRAY" eq ref $msg
		1291	? @$msg
		1292	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1293
		1294	my @reply;
		1295
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1296	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	1297	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1298	}
		1299
		1300	$pl->ext_reply ($reply, @reply)
		1301	if $reply;
		1302
940	} else {	1303	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1304	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1305	}
943		1306
944	cf::override;	1307	cf::override;
945	},	1308	},
946	);	1309	);
947		1310
948	sub register {
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	sub load_extension {	1311	sub load_extensions {
		1312	cf::sync_job {
		1313	my %todo;
		1314
		1315	for my $path (<$LIBDIR/*.ext>) {
		1316	next unless -r $path;
		1317
		1318	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1319	my $base = $1;
		1320	my $pkg = $1;
		1321	$pkg =~ s/[^[:word:]]/_/g;
		1322	$pkg = "ext::$pkg";
		1323
		1324	open my $fh, "<:utf8", $path
		1325	or die "$path: $!";
		1326
		1327	my $source = do { local $/; <$fh> };
		1328
		1329	my %ext = (
		1330	path => $path,
		1331	base => $base,
		1332	pkg => $pkg,
		1333	);
		1334
		1335	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1336	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1337
		1338	$ext{source} =
		1339	"package $pkg; use strict; use utf8;\n"
		1340	. "#line 1 \"$path\"\n{\n"
		1341	. $source
		1342	. "\n};\n1";
		1343
		1344	$todo{$base} = \%ext;
		1345	}
		1346
		1347	my %done;
		1348	while (%todo) {
		1349	my $progress;
		1350
		1351	while (my ($k, $v) = each %todo) {
		1352	for (split /,\s*/, $v->{meta}{depends}) {
		1353	goto skip
		1354	unless exists $done{$_};
		1355	}
		1356
		1357	warn "... loading '$k' into '$v->{pkg}'\n";
		1358
		1359	unless (eval $v->{source}) {
		1360	my $msg = $@ ? "$v->{path}: $@\n"
		1361	: "$v->{base}: extension inactive.\n";
		1362
		1363	if (exists $v->{meta}{mandatory}) {
		1364	warn $msg;
		1365	cf::cleanup "mandatory extension failed to load, exiting.";
		1366	}
		1367
		1368	warn $msg;
		1369	}
		1370
		1371	$done{$k} = delete $todo{$k};
		1372	push @EXTS, $v->{pkg};
		1373	$progress = 1;
		1374	}
		1375
		1376	skip:
		1377	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1378	unless $progress;
		1379	}
		1380	};
		1381	}
		1382
		1383	#############################################################################
		1384
		1385	=back
		1386
		1387	=head2 CORE EXTENSIONS
		1388
		1389	Functions and methods that extend core crossfire objects.
		1390
		1391	=cut
		1392
		1393	package cf::player;
		1394
		1395	use Coro::AIO;
		1396
		1397	=head3 cf::player
		1398
		1399	=over 4
		1400
		1401	=item cf::player::num_playing
		1402
		1403	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1404
		1405	=cut
		1406
		1407	sub num_playing {
		1408	scalar grep
		1409	$_->ob->map
		1410	&& !$_->hidden
		1411	&& !$_->ob->flag (cf::FLAG_WIZ),
		1412	cf::player::list
		1413	}
		1414
		1415	=item cf::player::find $login
		1416
		1417	Returns the given player object, loading it if necessary (might block).
		1418
		1419	=cut
		1420
		1421	sub playerdir($) {
		1422	"$PLAYERDIR/"
		1423	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1424	}
		1425
		1426	sub path($) {
		1427	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1428
		1429	(playerdir $login) . "/playerdata"
		1430	}
		1431
		1432	sub find_active($) {
		1433	$cf::PLAYER{$_[0]}
		1434	and $cf::PLAYER{$_[0]}->active
		1435	and $cf::PLAYER{$_[0]}
		1436	}
		1437
		1438	sub exists($) {
		1439	my ($login) = @_;
		1440
		1441	$cf::PLAYER{$login}
		1442	or cf::sync_job { !aio_stat path $login }
		1443	}
		1444
		1445	sub find($) {
		1446	return $cf::PLAYER{$_[0]} || do {
		1447	my $login = $_[0];
		1448
		1449	my $guard = cf::lock_acquire "user_find:$login";
		1450
		1451	$cf::PLAYER{$_[0]} || do {
		1452	# rename old playerfiles to new ones
		1453	#TODO: remove when no longer required
		1454	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1455	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1456	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1457	aio_unlink +(playerdir $login) . "/$login.pl";
		1458
		1459	my $f = new_from_file cf::object::thawer path $login
		1460	or return;
		1461
		1462	my $pl = cf::player::load_pl $f
		1463	or return;
		1464
		1465	local $cf::PLAYER_LOADING{$login} = $pl;
		1466	$f->resolve_delayed_derefs;
		1467	$cf::PLAYER{$login} = $pl
		1468	}
		1469	}
		1470	}
		1471
		1472	sub save($) {
		1473	my ($pl) = @_;
		1474
		1475	return if $pl->{deny_save};
		1476
		1477	my $path = path $pl;
		1478	my $guard = cf::lock_acquire "user_save:$path";
		1479
		1480	return if $pl->{deny_save};
		1481
		1482	aio_mkdir playerdir $pl, 0770;
		1483	$pl->{last_save} = $cf::RUNTIME;
		1484
		1485	cf::get_slot 0.01;
		1486
		1487	$pl->save_pl ($path);
		1488	cf::cede_to_tick;
		1489	}
		1490
		1491	sub new($) {
		1492	my ($login) = @_;
		1493
		1494	my $self = create;
		1495
		1496	$self->ob->name ($login);
		1497	$self->{deny_save} = 1;
		1498
		1499	$cf::PLAYER{$login} = $self;
		1500
		1501	$self
		1502	}
		1503
		1504	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1505
		1506	=cut
		1507
		1508	sub send_msg {
		1509	my $ns = shift->ns
		1510	or return;
		1511	$ns->send_msg (@_);
		1512	}
		1513
		1514	=item $pl->quit_character
		1515
		1516	Nukes the player without looking back. If logged in, the connection will
		1517	be destroyed. May block for a long time.
		1518
		1519	=cut
		1520
		1521	sub quit_character {
		1522	my ($pl) = @_;
		1523
		1524	my $name = $pl->ob->name;
		1525
		1526	$pl->{deny_save} = 1;
		1527	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1528
		1529	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1530	$pl->deactivate;
		1531	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1532	$pl->ob->check_score;
		1533	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1534	$pl->ns->destroy if $pl->ns;
		1535
		1536	my $path = playerdir $pl;
		1537	my $temp = "$path~$cf::RUNTIME~deleting~";
		1538	aio_rename $path, $temp;
		1539	delete $cf::PLAYER{$pl->ob->name};
		1540	$pl->destroy;
		1541
		1542	my $prefix = qr<^~\Q$name\E/>;
		1543
		1544	# nuke player maps
		1545	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1546
		1547	IO::AIO::aio_rmtree $temp;
		1548	}
		1549
		1550	=item $pl->kick
		1551
		1552	Kicks a player out of the game. This destroys the connection.
		1553
		1554	=cut
		1555
		1556	sub kick {
		1557	my ($pl, $kicker) = @_;
		1558
		1559	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1560	$pl->killer ("kicked");
		1561	$pl->ns->destroy;
		1562	}
		1563
		1564	=item cf::player::list_logins
		1565
		1566	Returns am arrayref of all valid playernames in the system, can take a
		1567	while and may block, so not sync_job-capable, ever.
		1568
		1569	=cut
		1570
		1571	sub list_logins {
		1572	my $dirs = aio_readdir $PLAYERDIR
		1573	or return [];
		1574
		1575	my @logins;
		1576
		1577	for my $login (@$dirs) {
		1578	my $path = path $login;
		1579
		1580	# a .pst is a dead give-away for a valid player
		1581	# if no pst file found, open and chekc for blocked users
		1582	if (aio_stat "$path.pst") {
		1583	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1584	aio_read $fh, 0, 512, my $buf, 0 or next;
		1585	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1586	}
		1587
		1588	utf8::decode $login;
		1589	push @logins, $login;
		1590	}
		1591
		1592	\@logins
		1593	}
		1594
		1595	=item $player->maps
		1596
		1597	Returns an arrayref of map paths that are private for this
		1598	player. May block.
		1599
		1600	=cut
		1601
		1602	sub maps($) {
		1603	my ($pl) = @_;
		1604
		1605	$pl = ref $pl ? $pl->ob->name : $pl;
		1606
		1607	my $files = aio_readdir playerdir $pl
		1608	or return;
		1609
		1610	my @paths;
		1611
		1612	for (@$files) {
		1613	utf8::decode $_;
		1614	next if /\.(?:pl|pst)$/;
		1615	next unless /^$PATH_SEP/o;
		1616
		1617	push @paths, cf::map::normalise "~$pl/$_";
		1618	}
		1619
		1620	\@paths
		1621	}
		1622
		1623	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1624
		1625	Expand crossfire pod fragments into protocol xml.
		1626
		1627	=cut
		1628
		1629	use re 'eval';
		1630
		1631	my $group;
		1632	my $interior; $interior = qr{
		1633	# match a pod interior sequence sans C<< >>
		1634	(?:
		1635	\ (.*?)\ (?{ $group = $^N })
		1636	| < (??{$interior}) >
		1637	)
		1638	}x;
		1639
		1640	sub expand_cfpod {
		1641	my ($self, $pod) = @_;
		1642
		1643	my $xml;
		1644
		1645	while () {
		1646	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1647	$group = $1;
		1648
		1649	$group =~ s/&/&amp;/g;
		1650	$group =~ s/</&lt;/g;
		1651
		1652	$xml .= $group;
		1653	} elsif ($pod =~ m%\G
		1654	([BCGHITU])
		1655	<
		1656	(?:
		1657	([^<>]*) (?{ $group = $^N })
		1658	| < $interior >
		1659	)
		1660	>
		1661	%gcsx
		1662	) {
		1663	my ($code, $data) = ($1, $group);
		1664
		1665	if ($code eq "B") {
		1666	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1667	} elsif ($code eq "I") {
		1668	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1669	} elsif ($code eq "U") {
		1670	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1671	} elsif ($code eq "C") {
		1672	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1673	} elsif ($code eq "T") {
		1674	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1675	} elsif ($code eq "G") {
		1676	my ($male, $female) = split /\|/, $data;
		1677	$data = $self->gender ? $female : $male;
		1678	$xml .= expand_cfpod ($self, $data);
		1679	} elsif ($code eq "H") {
		1680	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1681	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1682	"")
		1683	[$self->{hintmode}];
		1684	} else {
		1685	$xml .= "error processing '$code($data)' directive";
		1686	}
		1687	} else {
		1688	if ($pod =~ /\G(.+)/) {
		1689	warn "parse error while expanding $pod (at $1)";
		1690	}
		1691	last;
		1692	}
		1693	}
		1694
		1695	for ($xml) {
		1696	# create single paragraphs (very hackish)
		1697	s/(?<=\S)\n(?=\w)/ /g;
		1698
		1699	# compress some whitespace
		1700	s/\s+\n/\n/g; # ws line-ends
		1701	s/\n\n+/\n/g; # double lines
		1702	s/^\n+//; # beginning lines
		1703	s/\n+$//; # ending lines
		1704	}
		1705
		1706	$xml
		1707	}
		1708
		1709	no re 'eval';
		1710
		1711	sub hintmode {
		1712	$_[0]{hintmode} = $_[1] if @_ > 1;
		1713	$_[0]{hintmode}
		1714	}
		1715
		1716	=item $player->ext_reply ($msgid, @msg)
		1717
		1718	Sends an ext reply to the player.
		1719
		1720	=cut
		1721
		1722	sub ext_reply($$@) {
		1723	my ($self, $id, @msg) = @_;
		1724
		1725	$self->ns->ext_reply ($id, @msg)
		1726	}
		1727
		1728	=item $player->ext_msg ($type, @msg)
		1729
		1730	Sends an ext event to the client.
		1731
		1732	=cut
		1733
		1734	sub ext_msg($$@) {
		1735	my ($self, $type, @msg) = @_;
		1736
		1737	$self->ns->ext_msg ($type, @msg);
		1738	}
		1739
		1740	=head3 cf::region
		1741
		1742	=over 4
		1743
		1744	=cut
		1745
		1746	package cf::region;
		1747
		1748	=item cf::region::find_by_path $path
		1749
		1750	Tries to decuce the likely region for a map knowing only its path.
		1751
		1752	=cut
		1753
		1754	sub find_by_path($) {
955	my ($path) = @_;	1755	my ($path) = @_;
956		1756
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1757	my ($match, $specificity);
958	my $base = $1;
959	my $pkg = $1;
960	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";
962		1758
963	warn "loading '$path' into '$pkg'\n";	1759	for my $region (list) {
964		1760	if ($region->{match} && $path =~ $region->{match}) {
965	open my $fh, "<:utf8", $path	1761	($match, $specificity) = ($region, $region->specificity)
966	or die "$path: $!";	1762	if $region->specificity > $specificity;
967		1763	}
968	my $source =
969	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })
972	. "\n};\n1";
973
974	eval $source
975	or die $@ ? "$path: $@\n"
976	: "extension disabled.\n";
977
978	push @exts, $pkg;
979	$ext_pkg{$base} = $pkg;
980
981	# no strict 'refs';
982	# @{"$pkg\::ISA"} = ext::;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }	1764	}
997		1765
998	# remove commands	1766	$match
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}
1007	}
1008
1009	# remove extcmds
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1011	delete $EXTCMD{$name};
1012	}
1013
1014	if (my $cb = $pkg->can ("unload")) {
1015	eval {
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020
1021	Symbol::delete_package $pkg;
1022	}
1023
1024	sub load_extensions {
1025	for my $ext (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;
1027	eval {
1028	load_extension $ext;
1029	1
1030	} or warn "$ext not loaded: $@";
1031	}
1032	}
1033
1034	#############################################################################
1035	# load/save/clean perl data associated with a map
1036
1037	*cf::mapsupport::on_clean = sub {
1038	my ($map) = @_;
1039
1040	my $path = $map->tmpname;
1041	defined $path or return;
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}
1054
1055	# TODO: compatibility cruft, remove when no longer needed
1056	cf::player->attach (
1057	on_load => sub {
1058	my ($pl, $path) = @_;
1059
1060	for my $o (all_objects $pl->ob) {
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1062	$o->set_ob_key_value ("_perl_data");
1063
1064	%$o = %{ Storable::thaw pack "H*", $value };
1065	}
1066	}
1067	},
1068	);
1069
1070	#############################################################################
1071
1072	=head2 CORE EXTENSIONS
1073
1074	Functions and methods that extend core crossfire objects.
1075
1076	=head3 cf::player
1077
1078	=over 4
1079
1080	=item cf::player::exists $login
1081
1082	Returns true when the given account exists.
1083
1084	=cut
1085
1086	sub cf::player::exists($) {
1087	cf::player::find $_[0]
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1089	}
1090
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)
1092
1093	Sends an ext reply to the player.
1094
1095	=cut
1096
1097	sub cf::player::ext_reply($$$%) {
1098	my ($self, $id, %msg) = @_;
1099
1100	$msg{msgid} = $id;
1101
1102	$self->send ("ext " . to_json \%msg);
1103	}	1767	}
1104		1768
1105	=back	1769	=back
1106
1107		1770
1108	=head3 cf::map	1771	=head3 cf::map
1109		1772
1110	=over 4	1773	=over 4
1111		1774
…		…
1114	package cf::map;	1777	package cf::map;
1115		1778
1116	use Fcntl;	1779	use Fcntl;
1117	use Coro::AIO;	1780	use Coro::AIO;
1118		1781
		1782	use overload
		1783	'""' => \&as_string,
		1784	fallback => 1;
		1785
1119	our $MAX_RESET = 3600;	1786	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	1787	our $DEFAULT_RESET = 3000;
1121		1788
1122	sub generate_random_map {	1789	sub generate_random_map {
1123	my ($path, $rmp) = @_;	1790	my ($self, $rmp) = @_;
		1791
		1792	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1124		1793
1125	# mit "rum" bekleckern, nicht	1794	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1795	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1796	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1797	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1798	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1799	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1800	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1801	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1802	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1803	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1804	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1805	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region})	1806	(cf::region::find $rmp->{region}), $rmp->{custom}
		1807	)
		1808	}
		1809
		1810	=item cf::map->register ($regex, $prio)
		1811
		1812	Register a handler for the map path matching the given regex at the
		1813	givne priority (higher is better, built-in handlers have priority 0, the
		1814	default).
		1815
		1816	=cut
		1817
		1818	sub register {
		1819	my (undef, $regex, $prio) = @_;
		1820	my $pkg = caller;
		1821
		1822	no strict;
		1823	push @{"$pkg\::ISA"}, __PACKAGE__;
		1824
		1825	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1826	}
		1827
		1828	# also paths starting with '/'
		1829	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1830
		1831	sub thawer_merge {
		1832	my ($self, $merge) = @_;
		1833
		1834	# we have to keep some variables in memory intact
		1835	local $self->{path};
		1836	local $self->{load_path};
		1837
		1838	$self->SUPER::thawer_merge ($merge);
		1839	}
		1840
		1841	sub normalise {
		1842	my ($path, $base) = @_;
		1843
		1844	$path = "$path"; # make sure its a string
		1845
		1846	$path =~ s/\.map$//;
		1847
		1848	# map plan:
		1849	#
		1850	# /! non-realised random map exit (special hack!)
		1851	# {... are special paths that are not being touched
		1852	# ?xxx/... are special absolute paths
		1853	# ?random/... random maps
		1854	# /... normal maps
		1855	# ~user/... per-player map of a specific user
		1856
		1857	$path =~ s/$PATH_SEP/\//go;
		1858
		1859	# treat it as relative path if it starts with
		1860	# something that looks reasonable
		1861	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1862	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1863
		1864	$base =~ s{[^/]+/?$}{};
		1865	$path = "$base/$path";
		1866	}
		1867
		1868	for ($path) {
		1869	redo if s{//}{/};
		1870	redo if s{/\.?/}{/};
		1871	redo if s{/[^/]+/\.\./}{/};
		1872	}
		1873
		1874	$path
		1875	}
		1876
		1877	sub new_from_path {
		1878	my (undef, $path, $base) = @_;
		1879
		1880	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1881
		1882	$path = normalise $path, $base;
		1883
		1884	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1885	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1886	my $self = bless cf::map::new, $pkg;
		1887	$self->{path} = $path; $self->path ($path);
		1888	$self->init; # pass $1 etc.
		1889	return $self;
		1890	}
		1891	}
		1892
		1893	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1894	()
		1895	}
		1896
		1897	sub init {
		1898	my ($self) = @_;
		1899
		1900	$self
		1901	}
		1902
		1903	sub as_string {
		1904	my ($self) = @_;
		1905
		1906	"$self->{path}"
		1907	}
		1908
		1909	# the displayed name, this is a one way mapping
		1910	sub visible_name {
		1911	&as_string
		1912	}
		1913
		1914	# the original (read-only) location
		1915	sub load_path {
		1916	my ($self) = @_;
		1917
		1918	"$MAPDIR/$self->{path}.map"
		1919	}
		1920
		1921	# the temporary/swap location
		1922	sub save_path {
		1923	my ($self) = @_;
		1924
		1925	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1926	"$TMPDIR/$path.map"
		1927	}
		1928
		1929	# the unique path, undef == no special unique path
		1930	sub uniq_path {
		1931	my ($self) = @_;
		1932
		1933	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1934	"$UNIQUEDIR/$path"
1139	}	1935	}
1140		1936
1141	# and all this just because we cannot iterate over	1937	# and all this just because we cannot iterate over
1142	# all maps in C++...	1938	# all maps in C++...
1143	sub change_all_map_light {	1939	sub change_all_map_light {
…		…
1145		1941
1146	$_->change_map_light ($change)	1942	$_->change_map_light ($change)
1147	for grep $_->outdoor, values %cf::MAP;	1943	for grep $_->outdoor, values %cf::MAP;
1148	}	1944	}
1149		1945
		1946	sub decay_objects {
		1947	my ($self) = @_;
		1948
		1949	return if $self->{deny_reset};
		1950
		1951	$self->do_decay_objects;
		1952	}
		1953
		1954	sub unlink_save {
		1955	my ($self) = @_;
		1956
		1957	utf8::encode (my $save = $self->save_path);
		1958	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1959	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1960	}
		1961
1150	sub try_load_header($) {	1962	sub load_header_from($) {
1151	my ($path) = @_;	1963	my ($self, $path) = @_;
1152		1964
1153	utf8::encode $path;	1965	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1966	my $f = new_from_file cf::object::thawer $path
1155	or return;	1967	or return;
1156		1968
1157	my $map = cf::map::new	1969	$self->_load_header ($f)
1158	or return;	1970	or return;
1159		1971
1160	# for better error messages only, will be overwritten	1972	local $MAP_LOADING{$self->{path}} = $self;
1161	$map->path ($path);	1973	$f->resolve_delayed_derefs;
1162		1974
1163	$map->load_header ($path)	1975	$self->{load_path} = $path;
		1976
		1977	1
		1978	}
		1979
		1980	sub load_header_orig {
		1981	my ($self) = @_;
		1982
		1983	$self->load_header_from ($self->load_path)
		1984	}
		1985
		1986	sub load_header_temp {
		1987	my ($self) = @_;
		1988
		1989	$self->load_header_from ($self->save_path)
		1990	}
		1991
		1992	sub prepare_temp {
		1993	my ($self) = @_;
		1994
		1995	$self->last_access ((delete $self->{last_access})
		1996	|| $cf::RUNTIME); #d#
		1997	# safety
		1998	$self->{instantiate_time} = $cf::RUNTIME
		1999	if $self->{instantiate_time} > $cf::RUNTIME;
		2000	}
		2001
		2002	sub prepare_orig {
		2003	my ($self) = @_;
		2004
		2005	$self->{load_original} = 1;
		2006	$self->{instantiate_time} = $cf::RUNTIME;
		2007	$self->last_access ($cf::RUNTIME);
		2008	$self->instantiate;
		2009	}
		2010
		2011	sub load_header {
		2012	my ($self) = @_;
		2013
		2014	if ($self->load_header_temp) {
		2015	$self->prepare_temp;
		2016	} else {
		2017	$self->load_header_orig
1164	or return;	2018	or return;
		2019	$self->prepare_orig;
		2020	}
1165		2021
1166	$map->{load_path} = $path;	2022	$self->{deny_reset} = 1
		2023	if $self->no_reset;
1167		2024
1168	$map	2025	$self->default_region (cf::region::find_by_path $self->{path})
		2026	unless $self->default_region;
		2027
		2028	1
1169	}	2029	}
1170		2030
1171	sub find;	2031	sub find;
1172	sub find {	2032	sub find {
1173	my ($path, $origin) = @_;	2033	my ($path, $origin) = @_;
1174		2034
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	2035	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		2036
		2037	cf::lock_wait "map_data:$path";#d#remove
1180	cf::lock_wait "map_find:$key";	2038	cf::lock_wait "map_find:$path";
1181		2039
1182	$cf::MAP{$key} || do {	2040	$cf::MAP{$path} || do {
		2041	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1183	my $guard = cf::lock_acquire "map_find:$key";	2042	my $guard2 = cf::lock_acquire "map_find:$path";
1184		2043
1185	# do it the slow way	2044	my $map = new_from_path cf::map $path
1186	my $map = try_load_header $path->save_path;
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	2045	or return;
1204		2046
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	2047	$map->{last_save} = $cf::RUNTIME;
1217		2048
1218	Coro::cede;	2049	$map->load_header
		2050	or return;
1219		2051
1220	if ($map->should_reset) {	2052	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2053	# doing this can freeze the server in a sync job, obviously
		2054	#$cf::WAIT_FOR_TICK->wait;
		2055	undef $guard2;
		2056	undef $guard1;
1221	$map->reset;	2057	$map->reset;
1222	undef $guard;
1223	$map = find $path	2058	return find $path;
1224	or return;
1225	}	2059	}
1226		2060
1227	$cf::MAP{$key} = $map	2061	$cf::MAP{$path} = $map
1228	}	2062	}
1229	}	2063	}
		2064
		2065	sub pre_load { }
		2066	sub post_load { }
1230		2067
1231	sub load {	2068	sub load {
1232	my ($self) = @_;	2069	my ($self) = @_;
1233		2070
		2071	local $self->{deny_reset} = 1; # loading can take a long time
		2072
1234	my $path = $self->{path};	2073	my $path = $self->{path};
		2074
		2075	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2076	my $guard = cf::lock_acquire "map_data:$path";
1236		2077
		2078	return unless $self->valid;
1237	return if $self->in_memory != cf::MAP_SWAPPED;	2079	return unless $self->in_memory == cf::MAP_SWAPPED;
1238		2080
1239	$self->in_memory (cf::MAP_LOADING);	2081	$self->in_memory (cf::MAP_LOADING);
1240		2082
1241	$self->alloc;	2083	$self->alloc;
1242	$self->load_objects ($self->{load_path}, 1)	2084
		2085	$self->pre_load;
		2086	cf::cede_to_tick;
		2087
		2088	my $f = new_from_file cf::object::thawer $self->{load_path};
		2089	$f->skip_block;
		2090	$self->_load_objects ($f)
1243	or return;	2091	or return;
1244		2092
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2093	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	2094	if delete $self->{load_original};
1247		2095
1248	if (my $uniq = $path->uniq_path) {	2096	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	2097	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	2098	unless (aio_stat $uniq) {
		2099	if (my $f = new_from_file cf::object::thawer $uniq) {
1251	$self->clear_unique_items;	2100	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	2101	$self->_load_objects ($f);
		2102	$f->resolve_delayed_derefs;
		2103	}
1253	}	2104	}
1254	}	2105	}
1255		2106
1256	Coro::cede;	2107	$f->resolve_delayed_derefs;
1257		2108
		2109	cf::cede_to_tick;
1258	# now do the right thing for maps	2110	# now do the right thing for maps
1259	$self->link_multipart_objects;	2111	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	2112	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	2113	unless $self->difficulty;
		2114	cf::cede_to_tick;
		2115
		2116	unless ($self->{deny_activate}) {
		2117	$self->decay_objects;
		2118	$self->fix_auto_apply;
		2119	$self->update_buttons;
		2120	cf::cede_to_tick;
		2121	$self->set_darkness_map;
		2122	cf::cede_to_tick;
1271	$self->activate;	2123	$self->activate;
1272	}	2124	}
1273		2125
1274	Coro::cede;	2126	$self->{last_save} = $cf::RUNTIME;
		2127	$self->last_access ($cf::RUNTIME);
1275		2128
1276	$self->in_memory (cf::MAP_IN_MEMORY);	2129	$self->in_memory (cf::MAP_ACTIVE);
		2130	}
		2131
		2132	$self->post_load;
		2133	}
		2134
		2135	sub customise_for {
		2136	my ($self, $ob) = @_;
		2137
		2138	return find "~" . $ob->name . "/" . $self->{path}
		2139	if $self->per_player;
		2140
		2141	# return find "?party/" . $ob->name . "/" . $self->{path}
		2142	# if $self->per_party;
		2143
		2144	$self
		2145	}
		2146
		2147	# find and load all maps in the 3x3 area around a map
		2148	sub load_neighbours {
		2149	my ($map) = @_;
		2150
		2151	my @neigh; # diagonal neighbours
		2152
		2153	for (0 .. 3) {
		2154	my $neigh = $map->tile_path ($_)
		2155	or next;
		2156	$neigh = find $neigh, $map
		2157	or next;
		2158	$neigh->load;
		2159
		2160	push @neigh,
		2161	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2162	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2163	}
		2164
		2165	for (grep defined $_->[0], @neigh) {
		2166	my ($path, $origin) = @$_;
		2167	my $neigh = find $path, $origin
		2168	or next;
		2169	$neigh->load;
		2170	}
1277	}	2171	}
1278		2172
1279	sub find_sync {	2173	sub find_sync {
1280	my ($path, $origin) = @_;	2174	my ($path, $origin) = @_;
1281		2175
1282	cf::sync_job { cf::map::find $path, $origin }	2176	cf::sync_job { find $path, $origin }
1283	}	2177	}
1284		2178
1285	sub do_load_sync {	2179	sub do_load_sync {
1286	my ($map) = @_;	2180	my ($map) = @_;
1287		2181
		2182	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2183	if $Coro::current == $Coro::main;
		2184
1288	cf::sync_job { $map->load };	2185	cf::sync_job { $map->load };
		2186	}
		2187
		2188	our %MAP_PREFETCH;
		2189	our $MAP_PREFETCHER = undef;
		2190
		2191	sub find_async {
		2192	my ($path, $origin, $load) = @_;
		2193
		2194	$path = normalise $path, $origin && $origin->{path};
		2195
		2196	if (my $map = $cf::MAP{$path}) {
		2197	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2198	}
		2199
		2200	$MAP_PREFETCH{$path} |= $load;
		2201
		2202	$MAP_PREFETCHER ||= cf::async {
		2203	$Coro::current->{desc} = "map prefetcher";
		2204
		2205	while (%MAP_PREFETCH) {
		2206	while (my ($k, $v) = each %MAP_PREFETCH) {
		2207	if (my $map = find $k) {
		2208	$map->load if $v;
		2209	}
		2210
		2211	delete $MAP_PREFETCH{$k};
		2212	}
		2213	}
		2214	undef $MAP_PREFETCHER;
		2215	};
		2216	$MAP_PREFETCHER->prio (6);
		2217
		2218	()
1289	}	2219	}
1290		2220
1291	sub save {	2221	sub save {
1292	my ($self) = @_;	2222	my ($self) = @_;
1293		2223
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	2224	my $lock = cf::lock_acquire "map_data:$self->{path}";
1295		2225
1296	$self->{last_save} = $cf::RUNTIME;	2226	$self->{last_save} = $cf::RUNTIME;
1297		2227
1298	return unless $self->dirty;	2228	return unless $self->dirty;
1299		2229
1300	my $save = $self->{path}->save_path; utf8::encode $save;	2230	my $save = $self->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2231	my $uniq = $self->uniq_path; utf8::encode $uniq;
1302		2232
1303	$self->{load_path} = $save;	2233	$self->{load_path} = $save;
1304		2234
1305	return if $self->{deny_save};	2235	return if $self->{deny_save};
1306		2236
1307	local $self->{last_access} = $self->last_access;#d#	2237	local $self->{last_access} = $self->last_access;#d#
1308		2238
		2239	cf::async {
		2240	$Coro::current->{desc} = "map player save";
		2241	$_->contr->save for $self->players;
		2242	};
		2243
		2244	cf::get_slot 0.02;
		2245
1309	if ($uniq) {	2246	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2247	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);	2248	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {	2249	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2250	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}	2251	}
1315	}	2252	}
1316		2253
1317	sub swap_out {	2254	sub swap_out {
1318	my ($self) = @_;	2255	my ($self) = @_;
1319		2256
1320	# save first because save cedes	2257	# save first because save cedes
1321	$self->save;	2258	$self->save;
1322		2259
1323	my $lock = cf::lock_acquire "map_data:" . $self->path;	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1324		2261
1325	return if $self->players;	2262	return if $self->players;
1326	return if $self->in_memory != cf::MAP_IN_MEMORY;	2263	return if $self->in_memory != cf::MAP_ACTIVE;
1327	return if $self->{deny_save};	2264	return if $self->{deny_save};
1328		2265
		2266	$self->in_memory (cf::MAP_SWAPPED);
		2267
		2268	$self->deactivate;
		2269	$_->clear_links_to ($self) for values %cf::MAP;
1329	$self->clear;	2270	$self->clear;
1330	$self->in_memory (cf::MAP_SWAPPED);
1331	}	2271	}
1332		2272
1333	sub reset_at {	2273	sub reset_at {
1334	my ($self) = @_;	2274	my ($self) = @_;
1335		2275
1336	# TODO: safety, remove and allow resettable per-player maps	2276	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};
1338	return 1e99 if $self->{deny_reset};	2277	return 1e99 if $self->{deny_reset};
1339		2278
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2279	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2280	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		2281
…		…
1347	my ($self) = @_;	2286	my ($self) = @_;
1348		2287
1349	$self->reset_at <= $cf::RUNTIME	2288	$self->reset_at <= $cf::RUNTIME
1350	}	2289	}
1351		2290
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	2291	sub reset {
1374	my ($self) = @_;	2292	my ($self) = @_;
1375		2293
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	2294	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		2295
1378	return if $self->players;	2296	return if $self->players;
1379	return if $self->{path}{user_rel};#d#
1380		2297
1381	warn "resetting map ", $self->path;#d#	2298	warn "resetting map ", $self->path;
		2299
		2300	$self->in_memory (cf::MAP_SWAPPED);
		2301
		2302	# need to save uniques path
		2303	unless ($self->{deny_save}) {
		2304	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2305
		2306	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2307	if $uniq;
		2308	}
1382		2309
1383	delete $cf::MAP{$self->path};	2310	delete $cf::MAP{$self->path};
1384		2311
		2312	$self->deactivate;
1385	$_->clear_links_to ($self) for values %cf::MAP;	2313	$_->clear_links_to ($self) for values %cf::MAP;
		2314	$self->clear;
1386		2315
1387	$self->unlink_save;	2316	$self->unlink_save;
1388	$self->destroy;	2317	$self->destroy;
1389	}	2318	}
1390		2319
1391	my $nuke_counter = "aaaa";	2320	my $nuke_counter = "aaaa";
1392		2321
1393	sub nuke {	2322	sub nuke {
1394	my ($self) = @_;	2323	my ($self) = @_;
1395		2324
		2325	{
		2326	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2327
		2328	delete $cf::MAP{$self->path};
		2329
		2330	$self->unlink_save;
		2331
		2332	bless $self, "cf::map";
		2333	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	2334	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	2335	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	2336	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2337
		2338	$cf::MAP{$self->path} = $self;
		2339	}
		2340
1399	$self->reset; # polite request, might not happen	2341	$self->reset; # polite request, might not happen
1400	}	2342	}
1401		2343
1402	sub customise_for {	2344	=item $maps = cf::map::tmp_maps
1403	my ($map, $ob) = @_;
1404		2345
1405	if ($map->per_player) {	2346	Returns an arrayref with all map paths of currently instantiated and saved
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2347	maps. May block.
		2348
		2349	=cut
		2350
		2351	sub tmp_maps() {
1407	}	2352	[
1408		2353	map {
1409	$map	2354	utf8::decode $_;
		2355	/\.map$/
		2356	? normalise $_
		2357	: ()
		2358	} @{ aio_readdir $TMPDIR or [] }
		2359	]
1410	}	2360	}
1411		2361
1412	sub emergency_save {	2362	=item $maps = cf::map::random_maps
1413	my $freeze_guard = cf::freeze_mainloop;
1414		2363
1415	warn "enter emergency map save\n";	2364	Returns an arrayref with all map paths of currently instantiated and saved
		2365	random maps. May block.
1416		2366
1417	cf::sync_job {	2367	=cut
1418	warn "begin emergency map save\n";	2368
1419	$_->save for values %cf::MAP;	2369	sub random_maps() {
		2370	[
		2371	map {
		2372	utf8::decode $_;
		2373	/\.map$/
		2374	? normalise "?random/$_"
		2375	: ()
		2376	} @{ aio_readdir $RANDOMDIR or [] }
		2377	]
		2378	}
		2379
		2380	=item cf::map::unique_maps
		2381
		2382	Returns an arrayref of paths of all shared maps that have
		2383	instantiated unique items. May block.
		2384
		2385	=cut
		2386
		2387	sub unique_maps() {
		2388	[
		2389	map {
		2390	utf8::decode $_;
		2391	s/\.map$//; # TODO future compatibility hack
		2392	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2393	? ()
		2394	: normalise $_
		2395	} @{ aio_readdir $UNIQUEDIR or [] }
		2396	]
		2397	}
		2398
		2399	=back
		2400
		2401	=head3 cf::object
		2402
		2403	=cut
		2404
		2405	package cf::object;
		2406
		2407	=over 4
		2408
		2409	=item $ob->inv_recursive
		2410
		2411	Returns the inventory of the object I<and> their inventories, recursively,
		2412	but I<not> the object itself.
		2413
		2414	=cut
		2415
		2416	sub inv_recursive_;
		2417	sub inv_recursive_ {
		2418	map { $_, inv_recursive_ $_->inv } @_
		2419	}
		2420
		2421	sub inv_recursive {
		2422	inv_recursive_ inv $_[0]
		2423	}
		2424
		2425	=item $ref = $ob->ref
		2426
		2427	Creates and returns a persistent reference to an object that can be stored as a string.
		2428
		2429	=item $ob = cf::object::deref ($refstring)
		2430
		2431	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2432	even if the object actually exists. May block.
		2433
		2434	=cut
		2435
		2436	sub deref {
		2437	my ($ref) = @_;
		2438
		2439	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2440	my ($uuid, $name) = ($1, $2);
		2441	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2442	or return;
		2443	$pl->ob->uuid eq $uuid
		2444	or return;
		2445
		2446	$pl->ob
		2447	} else {
		2448	warn "$ref: cannot resolve object reference\n";
		2449	undef
1420	};	2450	}
1421
1422	warn "end emergency map save\n";
1423	}	2451	}
1424		2452
1425	package cf;	2453	package cf;
1426		2454
1427	=back	2455	=back
1428
1429		2456
1430	=head3 cf::object::player	2457	=head3 cf::object::player
1431		2458
1432	=over 4	2459	=over 4
1433		2460
…		…
1436	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2463	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1437	can be C<undef>. Does the right thing when the player is currently in a	2464	can be C<undef>. Does the right thing when the player is currently in a
1438	dialogue with the given NPC character.	2465	dialogue with the given NPC character.
1439		2466
1440	=cut	2467	=cut
		2468
		2469	our $SAY_CHANNEL = {
		2470	id => "say",
		2471	title => "Map",
		2472	reply => "say ",
		2473	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2474	};
		2475
		2476	our $CHAT_CHANNEL = {
		2477	id => "chat",
		2478	title => "Chat",
		2479	reply => "chat ",
		2480	tooltip => "Player chat and shouts, global to the server.",
		2481	};
1441		2482
1442	# rough implementation of a future "reply" method that works	2483	# rough implementation of a future "reply" method that works
1443	# with dialog boxes.	2484	# with dialog boxes.
1444	#TODO: the first argument must go, split into a $npc->reply_to ( method	2485	#TODO: the first argument must go, split into a $npc->reply_to ( method
1445	sub cf::object::player::reply($$$;$) {	2486	sub cf::object::player::reply($$$;$) {
…		…
1447		2488
1448	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2489	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1449		2490
1450	if ($self->{record_replies}) {	2491	if ($self->{record_replies}) {
1451	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2492	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2493
1452	} else {	2494	} else {
		2495	my $pl = $self->contr;
		2496
		2497	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2498	my $dialog = $pl->{npc_dialog};
		2499	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2500
		2501	} else {
1453	$msg = $npc->name . " says: $msg" if $npc;	2502	$msg = $npc->name . " says: $msg" if $npc;
1454	$self->message ($msg, $flags);	2503	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2504	}
1455	}	2505	}
		2506	}
		2507
		2508	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2509
		2510	=cut
		2511
		2512	sub cf::object::send_msg {
		2513	my $pl = shift->contr
		2514	or return;
		2515	$pl->send_msg (@_);
1456	}	2516	}
1457		2517
1458	=item $player_object->may ("access")	2518	=item $player_object->may ("access")
1459		2519
1460	Returns wether the given player is authorized to access resource "access"	2520	Returns wether the given player is authorized to access resource "access"
…		…
1473		2533
1474	=item $player_object->enter_link	2534	=item $player_object->enter_link
1475		2535
1476	Freezes the player and moves him/her to a special map (C<{link}>).	2536	Freezes the player and moves him/her to a special map (C<{link}>).
1477		2537
1478	The player should be reaosnably safe there for short amounts of time. You	2538	The player should be reasonably safe there for short amounts of time. You
1479	I<MUST> call C<leave_link> as soon as possible, though.	2539	I<MUST> call C<leave_link> as soon as possible, though.
1480		2540
		2541	Will never block.
		2542
1481	=item $player_object->leave_link ($map, $x, $y)	2543	=item $player_object->leave_link ($map, $x, $y)
1482		2544
1483	Moves the player out of the specila link map onto the given map. If the	2545	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	2546	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	2547	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	2548	fails, to the emergency map position.
1487		2549
1488	Might block.	2550	Might block.
1489		2551
1490	=cut	2552	=cut
		2553
		2554	sub link_map {
		2555	unless ($LINK_MAP) {
		2556	$LINK_MAP = cf::map::find "{link}"
		2557	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2558	$LINK_MAP->load;
		2559	}
		2560
		2561	$LINK_MAP
		2562	}
1491		2563
1492	sub cf::object::player::enter_link {	2564	sub cf::object::player::enter_link {
1493	my ($self) = @_;	2565	my ($self) = @_;
1494		2566
1495	$self->deactivate_recursive;	2567	$self->deactivate_recursive;
1496		2568
1497	return if $self->map == $LINK_MAP;	2569	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		2570
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2571	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	2572	if $self->map && $self->map->{path} ne "{link}";
1501		2573
1502	$self->enter_map ($LINK_MAP, 20, 20);	2574	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1503	}	2575	}
1504		2576
1505	sub cf::object::player::leave_link {	2577	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	2578	my ($self, $map, $x, $y) = @_;
		2579
		2580	return unless $self->contr->active;
1507		2581
1508	my $link_pos = delete $self->{_link_pos};	2582	my $link_pos = delete $self->{_link_pos};
1509		2583
1510	unless ($map) {	2584	unless ($map) {
1511	# restore original map position	2585	# restore original map position
…		…
1525	# use -1 or undef as default coordinates, not 0, 0	2599	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	2600	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	2601	if $x <=0 && $y <= 0;
1528		2602
1529	$map->load;	2603	$map->load;
		2604	$map->load_neighbours;
1530		2605
		2606	return unless $self->contr->active;
1531	$self->activate_recursive;	2607	$self->activate_recursive;
		2608
		2609	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1532	$self->enter_map ($map, $x, $y);	2610	$self->enter_map ($map, $x, $y);
1533	}	2611	}
1534		2612
1535	cf::player->attach (	2613	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1536	on_logout => sub {
1537	my ($pl) = @_;
1538		2614
1539	# abort map switching before logout	2615	Moves the player to the given map-path and coordinates by first freezing
1540	if ($pl->ob->{_link_pos}) {	2616	her, loading and preparing them map, calling the provided $check callback
1541	cf::sync_job {	2617	that has to return the map if sucecssful, and then unfreezes the player on
1542	$pl->ob->leave_link	2618	the new (success) or old (failed) map position. In either case, $done will
1543	};	2619	be called at the end of this process.
1544	}
1545	},
1546	on_login => sub {
1547	my ($pl) = @_;
1548		2620
1549	# try to abort aborted map switching on player login :)
1550	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {
1552
1553	$pl->ob->enter_link;
1554	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	$pl->ob->reply (undef,
1558	"There was an internal problem at your last logout, "
1559	. "the server will try to bring you to your intended destination in a second.",
1560	cf::NDI_RED);
1561	Coro::Timer::sleep 1;
1562	$pl->ob->leave_link;
1563	})->prio (2);
1564	}
1565	},
1566	);
1567
1568	=item $player_object->goto ($path, $x, $y)
1569
1570	=cut	2621	=cut
		2622
		2623	our $GOTOGEN;
1571		2624
1572	sub cf::object::player::goto {	2625	sub cf::object::player::goto {
1573	my ($self, $path, $x, $y) = @_;	2626	my ($self, $path, $x, $y, $check, $done) = @_;
		2627
		2628	# do generation counting so two concurrent goto's will be executed in-order
		2629	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1574		2630
1575	$self->enter_link;	2631	$self->enter_link;
1576		2632
1577	(async {	2633	(async {
1578	$path = new cf::path $path;	2634	$Coro::current->{desc} = "player::goto $path $x $y";
1579		2635
1580	my $map = cf::map::find $path->as_string;	2636	# *tag paths override both path and x|y
		2637	if ($path =~ /^\*(.*)$/) {
		2638	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2639	my $ob = $obs[rand @obs];
		2640
		2641	# see if we actually can go there
		2642	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2643	$ob = $obs[rand @obs];
		2644	} else {
		2645	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2646	}
		2647	# else put us there anyways for now #d#
		2648
		2649	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2650	} else {
		2651	($path, $x, $y) = (undef, undef, undef);
		2652	}
		2653	}
		2654
		2655	my $map = eval {
		2656	my $map = defined $path ? cf::map::find $path : undef;
		2657
		2658	if ($map) {
1581	$map = $map->customise_for ($self) if $map;	2659	$map = $map->customise_for ($self);
1582		2660	$map = $check->($map) if $check && $map;
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	2661	} else {
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2662	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2663	}
1587		2664
		2665	$map
		2666	};
		2667
		2668	if ($@) {
		2669	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2670	LOG llevError | logBacktrace, Carp::longmess $@;
		2671	}
		2672
		2673	if ($gen == $self->{_goto_generation}) {
		2674	delete $self->{_goto_generation};
1588	$self->leave_link ($map, $x, $y);	2675	$self->leave_link ($map, $x, $y);
		2676	}
		2677
		2678	$done->() if $done;
1589	})->prio (1);	2679	})->prio (1);
1590	}	2680	}
1591		2681
1592	=item $player_object->enter_exit ($exit_object)	2682	=item $player_object->enter_exit ($exit_object)
1593		2683
…		…
1595		2685
1596	sub parse_random_map_params {	2686	sub parse_random_map_params {
1597	my ($spec) = @_;	2687	my ($spec) = @_;
1598		2688
1599	my $rmp = { # defaults	2689	my $rmp = { # defaults
1600	xsize => 10,	2690	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	2691	ysize => (cf::rndm 15, 40),
		2692	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2693	#layout => string,
1602	};	2694	};
1603		2695
1604	for (split /\n/, $spec) {	2696	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	2697	my ($k, $v) = split /\s+/, $_, 2;
1606		2698
…		…
1618	# that depends on the exit object	2710	# that depends on the exit object
1619		2711
1620	my $rmp = parse_random_map_params $exit->msg;	2712	my $rmp = parse_random_map_params $exit->msg;
1621		2713
1622	if ($exit->map) {	2714	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2715	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2716	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2717	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2718	$rmp->{origin_y} = $exit->y;
		2719
		2720	$exit->map->touch;
1627	}	2721	}
1628		2722
1629	$rmp->{random_seed} ||= $exit->random_seed;	2723	$rmp->{random_seed} ||= $exit->random_seed;
1630		2724
1631	my $data = cf::to_json $rmp;	2725	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1632	my $md5 = Digest::MD5::md5_hex $data;	2726	my $md5 = Digest::MD5::md5_hex $data;
		2727	my $meta = "$RANDOMDIR/$md5.meta";
1633		2728
1634	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2729	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1635	aio_write $fh, 0, (length $data), $data, 0;	2730	aio_write $fh, 0, (length $data), $data, 0;
		2731	undef $fh;
		2732	aio_rename "$meta~", $meta;
1636		2733
		2734	my $slaying = "?random/$md5";
		2735
		2736	if ($exit->valid) {
1637	$exit->slaying ("?random/$md5");	2737	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	2738	$exit->msg (undef);
		2739	}
1639	}	2740	}
1640	}	2741	}
1641		2742
1642	sub cf::object::player::enter_exit {	2743	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	2744	my ($self, $exit) = @_;
…		…
1645	return unless $self->type == cf::PLAYER;	2746	return unless $self->type == cf::PLAYER;
1646		2747
1647	$self->enter_link;	2748	$self->enter_link;
1648		2749
1649	(async {	2750	(async {
1650	$self->deactivate_recursive; # just to be sure	2751	$Coro::current->{desc} = "enter_exit";
		2752
1651	unless (eval {	2753	unless (eval {
		2754	$self->deactivate_recursive; # just to be sure
		2755
		2756	# random map handling
		2757	{
		2758	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2759
1652	prepare_random_map $exit	2760	prepare_random_map $exit
1653	if $exit->slaying eq "/!";	2761	if $exit->slaying eq "/!";
		2762	}
1654		2763
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2764	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2765	my $x = $exit->stats->hp;
		2766	my $y = $exit->stats->sp;
1657		2767
		2768	$self->goto ($map, $x, $y);
		2769
		2770	# if exit is damned, update players death & WoR home-position
		2771	$self->contr->savebed ($map, $x, $y)
		2772	if $exit->flag (cf::FLAG_DAMNED);
		2773
1658	1;	2774	1
1659	}) {	2775	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2776	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2777	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2778	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2779	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2780
1665	warn "ERROR in enter_exit: $@";	2781	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2782	$self->leave_link;
1667	}	2783	}
1668	})->prio (1);	2784	})->prio (1);
…		…
1681		2797
1682	sub cf::client::send_drawinfo {	2798	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2799	my ($self, $text, $flags) = @_;
1684		2800
1685	utf8::encode $text;	2801	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2802	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2803	}
1688		2804
		2805	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2806
		2807	Send a drawinfo or msg packet to the client, formatting the msg for the
		2808	client if neccessary. C<$type> should be a string identifying the type of
		2809	the message, with C<log> being the default. If C<$color> is negative, suppress
		2810	the message unless the client supports the msg packet.
		2811
		2812	=cut
		2813
		2814	# non-persistent channels (usually the info channel)
		2815	our %CHANNEL = (
		2816	"c/identify" => {
		2817	id => "infobox",
		2818	title => "Identify",
		2819	reply => undef,
		2820	tooltip => "Items recently identified",
		2821	},
		2822	"c/examine" => {
		2823	id => "infobox",
		2824	title => "Examine",
		2825	reply => undef,
		2826	tooltip => "Signs and other items you examined",
		2827	},
		2828	"c/book" => {
		2829	id => "infobox",
		2830	title => "Book",
		2831	reply => undef,
		2832	tooltip => "The contents of a note or book",
		2833	},
		2834	"c/lookat" => {
		2835	id => "infobox",
		2836	title => "Look",
		2837	reply => undef,
		2838	tooltip => "What you saw there",
		2839	},
		2840	"c/who" => {
		2841	id => "infobox",
		2842	title => "Players",
		2843	reply => undef,
		2844	tooltip => "Shows players who are currently online",
		2845	},
		2846	"c/body" => {
		2847	id => "infobox",
		2848	title => "Body Parts",
		2849	reply => undef,
		2850	tooltip => "Shows which body parts you posess and are available",
		2851	},
		2852	"c/uptime" => {
		2853	id => "infobox",
		2854	title => "Uptime",
		2855	reply => undef,
		2856	tooltip => "How long the server has been running since last restart",
		2857	},
		2858	"c/mapinfo" => {
		2859	id => "infobox",
		2860	title => "Map Info",
		2861	reply => undef,
		2862	tooltip => "Information related to the maps",
		2863	},
		2864	"c/party" => {
		2865	id => "party",
		2866	title => "Party",
		2867	reply => "gsay ",
		2868	tooltip => "Messages and chat related to your party",
		2869	},
		2870	);
		2871
		2872	sub cf::client::send_msg {
		2873	my ($self, $channel, $msg, $color, @extra) = @_;
		2874
		2875	$msg = $self->pl->expand_cfpod ($msg);
		2876
		2877	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2878
		2879	# check predefined channels, for the benefit of C
		2880	if ($CHANNEL{$channel}) {
		2881	$channel = $CHANNEL{$channel};
		2882
		2883	$self->ext_msg (channel_info => $channel)
		2884	if $self->can_msg;
		2885
		2886	$channel = $channel->{id};
		2887
		2888	} elsif (ref $channel) {
		2889	# send meta info to client, if not yet sent
		2890	unless (exists $self->{channel}{$channel->{id}}) {
		2891	$self->{channel}{$channel->{id}} = $channel;
		2892	$self->ext_msg (channel_info => $channel)
		2893	if $self->can_msg;
		2894	}
		2895
		2896	$channel = $channel->{id};
		2897	}
		2898
		2899	return unless @extra || length $msg;
		2900
		2901	if ($self->can_msg) {
		2902	# default colour, mask it out
		2903	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2904	if $color & cf::NDI_DEF;
		2905
		2906	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2907	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2908	} else {
		2909	if ($color >= 0) {
		2910	# replace some tags by gcfclient-compatible ones
		2911	for ($msg) {
		2912	1 while
		2913	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2914	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2915	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2916	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2917	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2918	}
		2919
		2920	$color &= cf::NDI_COLOR_MASK;
		2921
		2922	utf8::encode $msg;
		2923
		2924	if (0 && $msg =~ /\[/) {
		2925	# COMMAND/INFO
		2926	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2927	} else {
		2928	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2929	$self->send_packet ("drawinfo $color $msg")
		2930	}
		2931	}
		2932	}
		2933	}
		2934
		2935	=item $client->ext_msg ($type, @msg)
		2936
		2937	Sends an ext event to the client.
		2938
		2939	=cut
		2940
		2941	sub cf::client::ext_msg($$@) {
		2942	my ($self, $type, @msg) = @_;
		2943
		2944	if ($self->extcmd == 2) {
		2945	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2946	} elsif ($self->extcmd == 1) { # TODO: remove
		2947	push @msg, msgtype => "event_$type";
		2948	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2949	}
		2950	}
		2951
		2952	=item $client->ext_reply ($msgid, @msg)
		2953
		2954	Sends an ext reply to the client.
		2955
		2956	=cut
		2957
		2958	sub cf::client::ext_reply($$@) {
		2959	my ($self, $id, @msg) = @_;
		2960
		2961	if ($self->extcmd == 2) {
		2962	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2963	} elsif ($self->extcmd == 1) {
		2964	#TODO: version 1, remove
		2965	unshift @msg, msgtype => "reply", msgid => $id;
		2966	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2967	}
		2968	}
1689		2969
1690	=item $success = $client->query ($flags, "text", \&cb)	2970	=item $success = $client->query ($flags, "text", \&cb)
1691		2971
1692	Queues a query to the client, calling the given callback with	2972	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2973	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2974	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		2975
1696	Queries can fail, so check the return code. Or don't, as queries will become	2976	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	2977	become reliable at some point in the future.
1698		2978
1699	=cut	2979	=cut
1700		2980
1701	sub cf::client::query {	2981	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	2982	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	2990	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2991	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		2992
1713	$self->send_packet ($self->{query_queue}[0][0])	2993	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	2994	if @{ $self->{query_queue} } == 1;
		2995
		2996	1
1715	}	2997	}
1716		2998
1717	cf::client->attach (	2999	cf::client->attach (
		3000	on_connect => sub {
		3001	my ($ns) = @_;
		3002
		3003	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3004	},
1718	on_reply => sub {	3005	on_reply => sub {
1719	my ($ns, $msg) = @_;	3006	my ($ns, $msg) = @_;
1720		3007
1721	# this weird shuffling is so that direct followup queries	3008	# this weird shuffling is so that direct followup queries
1722	# get handled first	3009	# get handled first
1723	my $queue = delete $ns->{query_queue}	3010	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	3011	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		3012
1726	(shift @$queue)->[1]->($msg);	3013	(shift @$queue)->[1]->($msg);
		3014	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		3015
1728	push @{ $ns->{query_queue} }, @$queue;	3016	push @{ $ns->{query_queue} }, @$queue;
1729		3017
1730	if (@{ $ns->{query_queue} } == @$queue) {	3018	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	3019	if (@$queue) {
…		…
1733	} else {	3021	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3022	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	3023	}
1736	}	3024	}
1737	},	3025	},
		3026	on_exticmd => sub {
		3027	my ($ns, $buf) = @_;
		3028
		3029	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3030
		3031	if (ref $msg) {
		3032	my ($type, $reply, @payload) =
		3033	"ARRAY" eq ref $msg
		3034	? @$msg
		3035	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3036
		3037	my @reply;
		3038
		3039	if (my $cb = $EXTICMD{$type}) {
		3040	@reply = $cb->($ns, @payload);
		3041	}
		3042
		3043	$ns->ext_reply ($reply, @reply)
		3044	if $reply;
		3045
		3046	} else {
		3047	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3048	}
		3049
		3050	cf::override;
		3051	},
1738	);	3052	);
1739		3053
1740	=item $client->async (\&cb)	3054	=item $client->async (\&cb)
1741		3055
1742	Create a new coroutine, running the specified callback. The coroutine will	3056	Create a new coroutine, running the specified callback. The coroutine will
…		…
1783	our $safe = new Safe "safe";	3097	our $safe = new Safe "safe";
1784	our $safe_hole = new Safe::Hole;	3098	our $safe_hole = new Safe::Hole;
1785		3099
1786	$SIG{FPE} = 'IGNORE';	3100	$SIG{FPE} = 'IGNORE';
1787		3101
1788	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3102	$safe->permit_only (Opcode::opset qw(
		3103	:base_core :base_mem :base_orig :base_math
		3104	grepstart grepwhile mapstart mapwhile
		3105	sort time
		3106	));
1789		3107
1790	# here we export the classes and methods available to script code	3108	# here we export the classes and methods available to script code
1791		3109
1792	=pod	3110	=pod
1793		3111
1794	The following fucntions and emthods are available within a safe environment:	3112	The following functions and methods are available within a safe environment:
1795		3113
1796	cf::object contr pay_amount pay_player map	3114	cf::object
		3115	contr pay_amount pay_player map x y force_find force_add destroy
		3116	insert remove name archname title slaying race decrease split
		3117
1797	cf::object::player player	3118	cf::object::player
1798	cf::player peaceful	3119	player
1799	cf::map trigger	3120
		3121	cf::player
		3122	peaceful
		3123
		3124	cf::map
		3125	trigger
1800		3126
1801	=cut	3127	=cut
1802		3128
1803	for (	3129	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	3130	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3131	insert remove inv nrof name archname title slaying race
		3132	decrease split destroy)],
1805	["cf::object::player" => qw(player)],	3133	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	3134	["cf::player" => qw(peaceful)],
1807	["cf::map" => qw(trigger)],	3135	["cf::map" => qw(trigger)],
1808	) {	3136	) {
1809	no strict 'refs';	3137	no strict 'refs';
…		…
1880	=back	3208	=back
1881		3209
1882	=cut	3210	=cut
1883		3211
1884	#############################################################################	3212	#############################################################################
		3213	# the server's init and main functions
1885		3214
1886	=head2 EXTENSION DATABASE SUPPORT	3215	sub load_facedata($) {
		3216	my ($path) = @_;
1887		3217
1888	Crossfire maintains a very simple database for extension use. It can	3218	# HACK to clear player env face cache, we need some signal framework
1889	currently store anything that can be serialised using Storable, which	3219	# for this (global event?)
1890	excludes objects.	3220	%ext::player_env::MUSIC_FACE_CACHE = ();
1891		3221
1892	The parameter C<$family> should best start with the name of the extension	3222	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1893	using it, it should be unique.
1894		3223
1895	=over 4	3224	warn "loading facedata from $path\n";
1896		3225
1897	=item $hashref = cf::db_get $family	3226	my $facedata;
		3227	0 < aio_load $path, $facedata
		3228	or die "$path: $!";
1898		3229
1899	Return a hashref for use by the extension C<$family>, which can be	3230	$facedata = Coro::Storable::thaw $facedata;
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902		3231
1903	=item $value = cf::db_get $family => $key	3232	$facedata->{version} == 2
		3233	or cf::cleanup "$path: version mismatch, cannot proceed.";
1904		3234
1905	Returns a single value from the database	3235	# patch in the exptable
1906		3236	$facedata->{resource}{"res/exp_table"} = {
1907	=item cf::db_put $family => $hashref	3237	type => FT_RSRC,
1908		3238	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928
1929	{
1930	my $path = cf::localdir . "/database.pst";
1931
1932	sub db_load() {
1933	$DB = stat $path ? Storable::retrieve $path : { };
1934	}
1935
1936	my $pid;
1937
1938	sub db_save() {
1939	waitpid $pid, 0 if $pid;
1940	if (0 == ($pid = fork)) {
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	3239	};
		3240	cf::cede_to_tick;
1958		3241
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}	3242	{
		3243	my $faces = $facedata->{faceinfo};
1963		3244
1964	sub db_get($;$) {	3245	while (my ($face, $info) = each %$faces) {
1965	@_ >= 2	3246	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		3247
1970	sub db_put($$;$) {	3248	cf::face::set_visibility $idx, $info->{visibility};
1971	if (@_ >= 3) {	3249	cf::face::set_magicmap $idx, $info->{magicmap};
1972	$DB->{$_[0]}{$_[1]} = $_[2];	3250	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1973	} else {	3251	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		3252
1979	cf::global->attach (	3253	cf::cede_to_tick;
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	3254	}
1984	);
1985	}
1986		3255
1987	#############################################################################	3256	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	3257	next unless $info->{smooth};
1989		3258
1990	sub cfg_load {	3259	my $idx = cf::face::find $face
		3260	or next;
		3261
		3262	if (my $smooth = cf::face::find $info->{smooth}) {
		3263	cf::face::set_smooth $idx, $smooth;
		3264	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3265	} else {
		3266	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3267	}
		3268
		3269	cf::cede_to_tick;
		3270	}
		3271	}
		3272
		3273	{
		3274	my $anims = $facedata->{animinfo};
		3275
		3276	while (my ($anim, $info) = each %$anims) {
		3277	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3278	cf::cede_to_tick;
		3279	}
		3280
		3281	cf::anim::invalidate_all; # d'oh
		3282	}
		3283
		3284	{
		3285	# TODO: for gcfclient pleasure, we should give resources
		3286	# that gcfclient doesn't grok a >10000 face index.
		3287	my $res = $facedata->{resource};
		3288
		3289	while (my ($name, $info) = each %$res) {
		3290	if (defined $info->{type}) {
		3291	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3292	my $data;
		3293
		3294	if ($info->{type} & 1) {
		3295	# prepend meta info
		3296
		3297	my $meta = $enc->encode ({
		3298	name => $name,
		3299	%{ $info->{meta} || {} },
		3300	});
		3301
		3302	$data = pack "(w/a*)*", $meta, $info->{data};
		3303	} else {
		3304	$data = $info->{data};
		3305	}
		3306
		3307	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3308	cf::face::set_type $idx, $info->{type};
		3309	} else {
		3310	$RESOURCE{$name} = $info;
		3311	}
		3312
		3313	cf::cede_to_tick;
		3314	}
		3315	}
		3316
		3317	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3318
		3319	1
		3320	}
		3321
		3322	cf::global->attach (on_resource_update => sub {
		3323	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3324	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3325
		3326	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3327	my $sound = $soundconf->{compat}[$_]
		3328	or next;
		3329
		3330	my $face = cf::face::find "sound/$sound->[1]";
		3331	cf::sound::set $sound->[0] => $face;
		3332	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3333	}
		3334
		3335	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3336	my $face = cf::face::find "sound/$v";
		3337	cf::sound::set $k => $face;
		3338	}
		3339	}
		3340	});
		3341
		3342	register_exticmd fx_want => sub {
		3343	my ($ns, $want) = @_;
		3344
		3345	while (my ($k, $v) = each %$want) {
		3346	$ns->fx_want ($k, $v);
		3347	}
		3348	};
		3349
		3350	sub load_resource_file($) {
		3351	my $guard = lock_acquire "load_resource_file";
		3352
		3353	my $status = load_resource_file_ $_[0];
		3354	get_slot 0.1, 100;
		3355	cf::arch::commit_load;
		3356
		3357	$status
		3358	}
		3359
		3360	sub reload_regions {
		3361	# HACK to clear player env face cache, we need some signal framework
		3362	# for this (global event?)
		3363	%ext::player_env::MUSIC_FACE_CACHE = ();
		3364
		3365	load_resource_file "$MAPDIR/regions"
		3366	or die "unable to load regions file\n";
		3367
		3368	for (cf::region::list) {
		3369	$_->{match} = qr/$_->{match}/
		3370	if exists $_->{match};
		3371	}
		3372	}
		3373
		3374	sub reload_facedata {
		3375	load_facedata "$DATADIR/facedata"
		3376	or die "unable to load facedata\n";
		3377	}
		3378
		3379	sub reload_archetypes {
		3380	load_resource_file "$DATADIR/archetypes"
		3381	or die "unable to load archetypes\n";
		3382	}
		3383
		3384	sub reload_treasures {
		3385	load_resource_file "$DATADIR/treasures"
		3386	or die "unable to load treasurelists\n";
		3387	}
		3388
		3389	sub reload_resources {
		3390	warn "reloading resource files...\n";
		3391
		3392	reload_facedata;
		3393	reload_archetypes;
		3394	reload_regions;
		3395	reload_treasures;
		3396
		3397	warn "finished reloading resource files\n";
		3398	}
		3399
		3400	sub init {
		3401	my $guard = freeze_mainloop;
		3402
		3403	reload_resources;
		3404	}
		3405
		3406	sub reload_config {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	3407	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	3408	or return;
1993		3409
1994	local $/;	3410	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	3411	*CFG = YAML::Load <$fh>;
1996		3412
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3413	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1998		3414
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3415	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3416	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		3417
2002	if (exists $CFG{mlockall}) {	3418	if (exists $CFG{mlockall}) {
2003	eval {	3419	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	3420	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	3421	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	3422	};
2007	warn $@ if $@;	3423	warn $@ if $@;
2008	}	3424	}
2009	}	3425	}
2010		3426
2011	sub main {	3427	sub main {
2012	# we must not ever block the main coroutine	3428	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	3429	local $Coro::idle = sub {
2014	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3430	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2015	async { Event::one_event };	3431	(async {
		3432	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3433	EV::loop EV::LOOP_ONESHOT;
		3434	})->prio (Coro::PRIO_MAX);
2016	};	3435	};
2017		3436
2018	cfg_load;	3437	{
2019	db_load;	3438	my $guard = freeze_mainloop;
		3439	reload_config;
		3440	db_init;
2020	load_extensions;	3441	load_extensions;
		3442
		3443	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3444	}
		3445
2021	Event::loop;	3446	EV::loop;
2022	}	3447	}
2023		3448
2024	#############################################################################	3449	#############################################################################
2025	# initialisation	3450	# initialisation and cleanup
2026		3451
		3452	# install some emergency cleanup handlers
		3453	BEGIN {
		3454	our %SIGWATCHER = ();
		3455	for my $signal (qw(INT HUP TERM)) {
		3456	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3457	cf::cleanup "SIG$signal";
		3458	};
		3459	}
		3460	}
		3461
		3462	sub write_runtime_sync {
		3463	my $runtime = "$LOCALDIR/runtime";
		3464
		3465	# first touch the runtime file to show we are still running:
		3466	# the fsync below can take a very very long time.
		3467
		3468	IO::AIO::aio_utime $runtime, undef, undef;
		3469
		3470	my $guard = cf::lock_acquire "write_runtime";
		3471
		3472	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3473	or return;
		3474
		3475	my $value = $cf::RUNTIME + 90 + 10;
		3476	# 10 is the runtime save interval, for a monotonic clock
		3477	# 60 allows for the watchdog to kill the server.
		3478
		3479	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3480	and return;
		3481
		3482	# always fsync - this file is important
		3483	aio_fsync $fh
		3484	and return;
		3485
		3486	# touch it again to show we are up-to-date
		3487	aio_utime $fh, undef, undef;
		3488
		3489	close $fh
		3490	or return;
		3491
		3492	aio_rename "$runtime~", $runtime
		3493	and return;
		3494
		3495	warn "runtime file written.\n";
		3496
		3497	1
		3498	}
		3499
		3500	our $uuid_lock;
		3501	our $uuid_skip;
		3502
		3503	sub write_uuid_sync($) {
		3504	$uuid_skip ||= $_[0];
		3505
		3506	return if $uuid_lock;
		3507	local $uuid_lock = 1;
		3508
		3509	my $uuid = "$LOCALDIR/uuid";
		3510
		3511	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3512	or return;
		3513
		3514	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3515	$uuid_skip = 0;
		3516
		3517	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3518	and return;
		3519
		3520	# always fsync - this file is important
		3521	aio_fsync $fh
		3522	and return;
		3523
		3524	close $fh
		3525	or return;
		3526
		3527	aio_rename "$uuid~", $uuid
		3528	and return;
		3529
		3530	warn "uuid file written ($value).\n";
		3531
		3532	1
		3533
		3534	}
		3535
		3536	sub write_uuid($$) {
		3537	my ($skip, $sync) = @_;
		3538
		3539	$sync ? write_uuid_sync $skip
		3540	: async { write_uuid_sync $skip };
		3541	}
		3542
		3543	sub emergency_save() {
		3544	my $freeze_guard = cf::freeze_mainloop;
		3545
		3546	warn "enter emergency perl save\n";
		3547
		3548	cf::sync_job {
		3549	# use a peculiar iteration method to avoid tripping on perl
		3550	# refcount bugs in for. also avoids problems with players
		3551	# and maps saved/destroyed asynchronously.
		3552	warn "begin emergency player save\n";
		3553	for my $login (keys %cf::PLAYER) {
		3554	my $pl = $cf::PLAYER{$login} or next;
		3555	$pl->valid or next;
		3556	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3557	$pl->save;
		3558	}
		3559	warn "end emergency player save\n";
		3560
		3561	warn "begin emergency map save\n";
		3562	for my $path (keys %cf::MAP) {
		3563	my $map = $cf::MAP{$path} or next;
		3564	$map->valid or next;
		3565	$map->save;
		3566	}
		3567	warn "end emergency map save\n";
		3568
		3569	warn "begin emergency database checkpoint\n";
		3570	BDB::db_env_txn_checkpoint $DB_ENV;
		3571	warn "end emergency database checkpoint\n";
		3572
		3573	warn "begin write uuid\n";
		3574	write_uuid_sync 1;
		3575	warn "end write uuid\n";
		3576	};
		3577
		3578	warn "leave emergency perl save\n";
		3579	}
		3580
		3581	sub post_cleanup {
		3582	my ($make_core) = @_;
		3583
		3584	warn Carp::longmess "post_cleanup backtrace"
		3585	if $make_core;
		3586	}
		3587
2027	sub reload() {	3588	sub do_reload_perl() {
2028	# can/must only be called in main	3589	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	3590	if ($Coro::current != $Coro::main) {
2030	warn "can only reload from main coroutine\n";	3591	warn "can only reload from main coroutine";
2031	return;	3592	return;
2032	}	3593	}
2033		3594
2034	warn "reloading...";	3595	warn "reloading...";
2035		3596
2036	my $guard = freeze_mainloop;	3597	warn "entering sync_job";
		3598
		3599	cf::sync_job {
		3600	cf::write_runtime_sync; # external watchdog should not bark
2037	cf::emergency_save;	3601	cf::emergency_save;
		3602	cf::write_runtime_sync; # external watchdog should not bark
2038		3603
2039	eval {	3604	warn "syncing database to disk";
		3605	BDB::db_env_txn_checkpoint $DB_ENV;
		3606
2040	# if anything goes wrong in here, we should simply crash as we already saved	3607	# if anything goes wrong in here, we should simply crash as we already saved
2041		3608
2042	# cancel all watchers	3609	warn "flushing outstanding aio requests";
2043	for (Event::all_watchers) {	3610	for (;;) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;	3611	BDB::flush;
		3612	IO::AIO::flush;
		3613	Coro::cede_notself;
		3614	last unless IO::AIO::nreqs || BDB::nreqs;
		3615	warn "iterate...";
2045	}	3616	}
2046		3617
		3618	++$RELOAD;
		3619
2047	# cancel all extension coros	3620	warn "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	3621	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	3622	%EXT_CORO = ();
2050		3623
2051	# unload all extensions	3624	warn "removing commands";
2052	for (@exts) {	3625	%COMMAND = ();
		3626
		3627	warn "removing ext/exti commands";
		3628	%EXTCMD = ();
		3629	%EXTICMD = ();
		3630
		3631	warn "unloading/nuking all extensions";
		3632	for my $pkg (@EXTS) {
2053	warn "unloading <$_>";	3633	warn "... unloading $pkg";
2054	unload_extension $_;	3634
		3635	if (my $cb = $pkg->can ("unload")) {
		3636	eval {
		3637	$cb->($pkg);
		3638	1
		3639	} or warn "$pkg unloaded, but with errors: $@";
2055	}	3640	}
2056		3641
		3642	warn "... nuking $pkg";
		3643	Symbol::delete_package $pkg;
		3644	}
		3645
2057	# unload all modules loaded from $LIBDIR	3646	warn "unloading all perl modules loaded from $LIBDIR";
2058	while (my ($k, $v) = each %INC) {	3647	while (my ($k, $v) = each %INC) {
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3648	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2060		3649
2061	warn "removing <$k>";	3650	warn "... unloading $k";
2062	delete $INC{$k};	3651	delete $INC{$k};
2063		3652
2064	$k =~ s/\.pm$//;	3653	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;	3654	$k =~ s/\//::/g;
2066		3655
…		…
2069	}	3658	}
2070		3659
2071	Symbol::delete_package $k;	3660	Symbol::delete_package $k;
2072	}	3661	}
2073		3662
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	3663	warn "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	3664	Symbol::delete_package "safe::$_"
2080	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3665	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2081		3666
2082	# remove register_script_function callbacks
2083	# TODO
2084
2085	# unload cf.pm "a bit"	3667	warn "unloading cf.pm \"a bit\"";
2086	delete $INC{"cf.pm"};	3668	delete $INC{"cf.pm"};
		3669	delete $INC{"cf/pod.pm"};
2087		3670
2088	# don't, removes xs symbols, too,	3671	# don't, removes xs symbols, too,
2089	# and global variables created in xs	3672	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	3673	#Symbol::delete_package __PACKAGE__;
2091		3674
2092	# reload cf.pm	3675	warn "unload completed, starting to reload now";
		3676
2093	warn "reloading cf.pm";	3677	warn "reloading cf.pm";
2094	require cf;	3678	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3679	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2096		3680
2097	# load config and database again	3681	warn "loading config and database again";
2098	cf::cfg_load;	3682	cf::reload_config;
2099	cf::db_load;
2100		3683
2101	# load extensions
2102	warn "load extensions";	3684	warn "loading extensions";
2103	cf::load_extensions;	3685	cf::load_extensions;
2104		3686
2105	# reattach attachments to objects	3687	warn "reattaching attachments to objects/players";
2106	warn "reattach";	3688	_global_reattach; # objects, sockets
2107	_global_reattach;	3689	warn "reattaching attachments to maps";
		3690	reattach $_ for values %MAP;
		3691	warn "reattaching attachments to players";
		3692	reattach $_ for values %PLAYER;
		3693
		3694	warn "leaving sync_job";
		3695
		3696	1
		3697	} or do {
		3698	warn $@;
		3699	cf::cleanup "error while reloading, exiting.";
2108	};	3700	};
2109		3701
2110	if ($@) {	3702	warn "reloaded";
2111	warn $@;
2112	warn "error while reloading, exiting.";
2113	exit 1;
2114	}
2115
2116	warn "reloaded successfully";
2117	};	3703	};
2118		3704
2119	#############################################################################	3705	our $RELOAD_WATCHER; # used only during reload
2120		3706
2121	unless ($LINK_MAP) {	3707	sub reload_perl() {
2122	$LINK_MAP = cf::map::new;	3708	# doing reload synchronously and two reloads happen back-to-back,
		3709	# coro crashes during coro_state_free->destroy here.
2123		3710
2124	$LINK_MAP->width (41);	3711	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2125	$LINK_MAP->height (41);	3712	do_reload_perl;
2126	$LINK_MAP->alloc;	3713	undef $RELOAD_WATCHER;
2127	$LINK_MAP->path ("{link}");	3714	};
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 10,
2134	cb => sub {
2135	$_[0]->w->cancel;
2136
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});
2155
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}	3715	}
2161
2162	register "<global>", __PACKAGE__;
2163		3716
2164	register_command "reload" => sub {	3717	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	3718	my ($who, $arg) = @_;
2166		3719
2167	if ($who->flag (FLAG_WIZ)) {	3720	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	3721	$who->message ("reloading server.");
		3722	async {
		3723	$Coro::current->{desc} = "perl_reload";
		3724	reload_perl;
		3725	};
2171	}	3726	}
2172	};	3727	};
2173		3728
2174	unshift @INC, $LIBDIR;	3729	unshift @INC, $LIBDIR;
2175		3730
2176	$TICK_WATCHER = Event->timer (	3731	my $bug_warning = 0;
2177	reentrant => 0,	3732
2178	prio => 0,	3733	our @WAIT_FOR_TICK;
2179	at => $NEXT_TICK || $TICK,	3734	our @WAIT_FOR_TICK_BEGIN;
2180	data => WF_AUTOCANCEL,	3735
2181	cb => sub {	3736	sub wait_for_tick {
		3737	return if tick_inhibit || $Coro::current == $Coro::main;
		3738
		3739	my $signal = new Coro::Signal;
		3740	push @WAIT_FOR_TICK, $signal;
		3741	$signal->wait;
		3742	}
		3743
		3744	sub wait_for_tick_begin {
		3745	return if tick_inhibit || $Coro::current == $Coro::main;
		3746
		3747	my $signal = new Coro::Signal;
		3748	push @WAIT_FOR_TICK_BEGIN, $signal;
		3749	$signal->wait;
		3750	}
		3751
		3752	sub tick {
		3753	if ($Coro::current != $Coro::main) {
		3754	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3755	unless ++$bug_warning > 10;
		3756	return;
		3757	}
		3758
2182	cf::server_tick; # one server iteration	3759	cf::server_tick; # one server iteration
2183	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;
2185		3760
2186	# if we are delayed by four ticks or more, skip them all	3761	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3762	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2188		3763	Coro::async_pool {
2189	$TICK_WATCHER->at ($NEXT_TICK);	3764	$Coro::current->{desc} = "runtime saver";
2190	$TICK_WATCHER->start;
2191	},
2192	);
2193
2194	IO::AIO::max_poll_time $TICK * 0.2;
2195
2196	Event->io (
2197	fd => IO::AIO::poll_fileno,
2198	poll => 'r',
2199	prio => 5,
2200	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,
2202	);
2203
2204	Event->timer (
2205	data => WF_AUTOCANCEL,
2206	after => 0,
2207	interval => 10,
2208	cb => sub {
2209	(Coro::unblock_sub {
2210	write_runtime	3765	write_runtime_sync
2211	or warn "ERROR: unable to write runtime file: $!";	3766	or warn "ERROR: unable to write runtime file: $!";
2212	})->();	3767	};
2213	},	3768	}
2214	);	3769
		3770	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3771	$sig->send;
		3772	}
		3773	while (my $sig = shift @WAIT_FOR_TICK) {
		3774	$sig->send;
		3775	}
		3776
		3777	$LOAD = ($NOW - $TICK_START) / $TICK;
		3778	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3779
		3780	if (0) {
		3781	if ($NEXT_TICK) {
		3782	my $jitter = $TICK_START - $NEXT_TICK;
		3783	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3784	warn "jitter $JITTER\n";#d#
		3785	}
		3786	}
		3787	}
		3788
		3789	{
		3790	# configure BDB
		3791
		3792	BDB::min_parallel 8;
		3793	BDB::max_poll_reqs $TICK * 0.1;
		3794	$AnyEvent::BDB::WATCHER->priority (1);
		3795
		3796	unless ($DB_ENV) {
		3797	$DB_ENV = BDB::db_env_create;
		3798	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3799	| BDB::LOG_AUTOREMOVE, 1);
		3800	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3801	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3802
		3803	cf::sync_job {
		3804	eval {
		3805	BDB::db_env_open
		3806	$DB_ENV,
		3807	$BDBDIR,
		3808	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3809	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3810	0666;
		3811
		3812	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3813	};
		3814
		3815	cf::cleanup "db_env_open(db): $@" if $@;
		3816	};
		3817	}
		3818
		3819	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3820	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3821	};
		3822	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3823	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3824	};
		3825	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3826	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3827	};
		3828	}
		3829
		3830	{
		3831	# configure IO::AIO
		3832
		3833	IO::AIO::min_parallel 8;
		3834	IO::AIO::max_poll_time $TICK * 0.1;
		3835	#undef $AnyEvent::AIO::WATCHER;
		3836	}
		3837
		3838	my $_log_backtrace;
		3839
		3840	sub _log_backtrace {
		3841	my ($msg, @addr) = @_;
		3842
		3843	$msg =~ s/\n//;
		3844
		3845	# limit the # of concurrent backtraces
		3846	if ($_log_backtrace < 2) {
		3847	++$_log_backtrace;
		3848	async {
		3849	$Coro::current->{desc} = "abt $msg";
		3850
		3851	my @bt = fork_call {
		3852	@addr = map { sprintf "%x", $_ } @addr;
		3853	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3854	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3855	or die "addr2line: $!";
		3856
		3857	my @funcs;
		3858	my @res = <$fh>;
		3859	chomp for @res;
		3860	while (@res) {
		3861	my ($func, $line) = splice @res, 0, 2, ();
		3862	push @funcs, "[$func] $line";
		3863	}
		3864
		3865	@funcs
		3866	};
		3867
		3868	LOG llevInfo, "[ABT] $msg\n";
		3869	LOG llevInfo, "[ABT] $_\n" for @bt;
		3870	--$_log_backtrace;
		3871	};
		3872	} else {
		3873	LOG llevInfo, "[ABT] $msg\n";
		3874	LOG llevInfo, "[ABT] [suppressed]\n";
		3875	}
		3876	}
		3877
		3878	# load additional modules
		3879	use cf::pod;
2215		3880
2216	END { cf::emergency_save }	3881	END { cf::emergency_save }
2217		3882
		3883	evthread_start IO::AIO::poll_fileno;
		3884
2218	1	3885	1
2219		3886

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