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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC vs.
Revision 1.466 by root, Thu Jan 8 03:03:24 2009 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
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
20	use Digest::MD5;	56	use Digest::MD5;
21	use Fcntl;	57	use Fcntl;
		58	use YAML ();
22	use IO::AIO 2.31 ();	59	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
25		63
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
27		65
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	66	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		70
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
32		76
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		78
35	our %COMMAND = ();	79	our %COMMAND = ();
36	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
		81
		82	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
		85	our %EXT_CORO = (); # coroutines bound to extensions
		86	our %EXT_MAP = (); # pluggable maps
38		87
		88	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	89	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		90
42	our $TICK = MAX_TIME * 1e-6;	91	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	92	our $DATADIR = datadir;
		93	our $LIBDIR = "$DATADIR/ext";
		94	our $PODDIR = "$DATADIR/pod";
		95	our $MAPDIR = "$DATADIR/" . mapdir;
		96	our $LOCALDIR = localdir;
		97	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		98	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		99	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		100	our $RANDOMDIR = "$LOCALDIR/random";
		101	our $BDBDIR = "$LOCALDIR/db";
		102	our $PIDFILE = "$LOCALDIR/pid";
		103	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		104
		105	our %RESOURCE;
		106
		107	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		108	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	109	our $NEXT_TICK;
45	our $NOW;	110	our $USE_FSYNC = 1; # use fsync to write maps - default off
		111
		112	our $BDB_DEADLOCK_WATCHER;
		113	our $BDB_CHECKPOINT_WATCHER;
		114	our $BDB_TRICKLE_WATCHER;
		115	our $DB_ENV;
		116
		117	our @EXTRA_MODULES = qw(pod mapscript);
46		118
47	our %CFG;	119	our %CFG;
48		120
49	our $UPTIME; $UPTIME ||= time;	121	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	122	our $RUNTIME;
		123	our $NOW;
51		124
52	our %MAP; # all maps	125	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	126	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	127	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	128
		129	# used to convert map paths into valid unix filenames by replacing / by ∕
		130	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		131
		132	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		133	our $LOADAVG; # same thing, but with alpha-smoothing
		134	our $JITTER; # average jitter
		135	our $TICK_START; # for load detecting purposes
		136
		137	our @POST_INIT;
		138
		139	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
56		140
57	binmode STDOUT;	141	binmode STDOUT;
58	binmode STDERR;	142	binmode STDERR;
59		143
60	# read virtual server time, if available	144	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	145	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	146	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	147	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	148	$RUNTIME = <$fh> + 0.;
65	}	149	}
66		150
67	mkdir cf::localdir;	151	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	152	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		153
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	154	our $EMERGENCY_POSITION;
		155
		156	sub cf::map::normalise;
76		157
77	#############################################################################	158	#############################################################################
78		159
79	=head2 GLOBAL VARIABLES	160	=head2 GLOBAL VARIABLES
80		161
…		…
87	=item $cf::RUNTIME	168	=item $cf::RUNTIME
88		169
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	170	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	171	every server tick.
91		172
92	=item $cf::LIBDIR	173	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		174	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		175	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		176
94	The perl library directory, where extensions and cf-specific modules can	177	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	178	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		179	unique-items directory, player file directory, random maps directory and
		180	database environment.
96		181
97	=item $cf::NOW	182	=item $cf::NOW
98		183
99	The time of the last (current) server tick.	184	The time of the last (current) server tick.
100		185
101	=item $cf::TICK	186	=item $cf::TICK
102		187
103	The interval between server ticks, in seconds.	188	The interval between server ticks, in seconds.
104		189
		190	=item $cf::LOADAVG
		191
		192	The current CPU load on the server (alpha-smoothed), as a value between 0
		193	(none) and 1 (overloaded), indicating how much time is spent on processing
		194	objects per tick. Healthy values are < 0.5.
		195
		196	=item $cf::LOAD
		197
		198	The raw value load value from the last tick.
		199
105	=item %cf::CFG	200	=item %cf::CFG
106		201
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	202	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	203	from wherever your confdir points to.
		204
		205	=item cf::wait_for_tick, cf::wait_for_tick_begin
		206
		207	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		208	returns directly I<after> the tick processing (and consequently, can only wake one process
		209	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		210
		211	=item @cf::INVOKE_RESULTS
		212
		213	This array contains the results of the last C<invoke ()> call. When
		214	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		215	that call.
109		216
110	=back	217	=back
111		218
112	=cut	219	=cut
113		220
114	BEGIN {	221	BEGIN {
115	*CORE::GLOBAL::warn = sub {	222	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	223	my $msg = join "", @_;
117	utf8::encode $msg;
118		224
119	$msg .= "\n"	225	$msg .= "\n"
120	unless $msg =~ /\n$/;	226	unless $msg =~ /\n$/;
121		227
		228	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		229
122	LOG llevError, "cfperl: $msg";	230	LOG llevError, $msg;
123	};	231	};
124	}	232	}
		233
		234	$Coro::State::DIEHOOK = sub {
		235	return unless $^S eq 0; # "eq", not "=="
		236
		237	if ($Coro::current == $Coro::main) {#d#
		238	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		239	return;#d#
		240	}#d#
		241
		242	# kill coroutine otherwise
		243	warn Carp::longmess $_[0];
		244	Coro::terminate
		245	};
		246
		247	$SIG{__DIE__} = sub { }; #d#?
125		248
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	249	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	250	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	251	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	252	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	253	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		254	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	255	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		256
133	# we bless all objects into (empty) derived classes to force a method lookup	257	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	258	# within the Safe compartment.
135	for my $pkg (qw(	259	for my $pkg (qw(
136	cf::global cf::attachable	260	cf::global cf::attachable
137	cf::object cf::object::player	261	cf::object cf::object::player
138	cf::client cf::player	262	cf::client cf::player
139	cf::arch cf::living	263	cf::arch cf::living
		264	cf::map cf::mapspace
140	cf::map cf::party cf::region	265	cf::party cf::region
141	)) {	266	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	267	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	268	}
145		269
146	$Event::DIED = sub {	270	$EV::DIED = sub {
147	warn "error in event callback: @_";	271	warn "error in event callback: @_";
148	};	272	};
149		273
150	my %ext_pkg;	274	#############################################################################
151	my @exts;
152	my @hook;
153		275
154	=head2 UTILITY FUNCTIONS	276	=head2 UTILITY FUNCTIONS
155		277
156	=over 4	278	=over 4
157		279
158	=cut	280	=item dumpval $ref
159		281
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	282	=cut
161		283
		284	sub dumpval {
		285	eval {
		286	local $SIG{__DIE__};
		287	my $d;
		288	if (1) {
		289	$d = new Data::Dumper([$_[0]], ["*var"]);
		290	$d->Terse(1);
		291	$d->Indent(2);
		292	$d->Quotekeys(0);
		293	$d->Useqq(1);
		294	#$d->Bless(...);
		295	$d->Seen($_[1]) if @_ > 1;
		296	$d = $d->Dump();
		297	}
		298	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		299	$d
		300	} || "[unable to dump $_[0]: '$@']";
		301	}
		302
162	=item $ref = cf::from_json $json	303	=item $ref = cf::decode_json $json
163		304
164	Converts a JSON string into the corresponding perl data structure.	305	Converts a JSON string into the corresponding perl data structure.
165		306
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	307	=item $json = cf::encode_json $ref
174		308
175	Converts a perl data structure into its JSON representation.	309	Converts a perl data structure into its JSON representation.
176		310
177	=cut	311	=cut
178		312
179	sub to_json($) {	313	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	314
181	JSON::Syck::Dump $_[0]	315	sub encode_json($) { $json_coder->encode ($_[0]) }
		316	sub decode_json($) { $json_coder->decode ($_[0]) }
		317
		318	=item cf::post_init { BLOCK }
		319
		320	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		321	but I<before> the server starts ticking again.
		322
		323	The cdoeblock will have a single boolean argument to indicate whether this
		324	is a reload or not.
		325
		326	=cut
		327
		328	sub post_init(&) {
		329	push @POST_INIT, shift;
182	}	330	}
183		331
184	=item cf::lock_wait $string	332	=item cf::lock_wait $string
185		333
186	Wait until the given lock is available. See cf::lock_acquire.	334	Wait until the given lock is available. See cf::lock_acquire.
187		335
188	=item my $lock = cf::lock_acquire $string	336	=item my $lock = cf::lock_acquire $string
189		337
190	Wait until the given lock is available and then acquires it and returns	338	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,	339	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	340	for example when the coroutine gets canceled), the lock is automatically
193	returned.	341	returned.
194		342
		343	Locks are *not* recursive, locking from the same coro twice results in a
		344	deadlocked coro.
		345
195	Lock names should begin with a unique identifier (for example, cf::map::find	346	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	347	uses map_find and cf::map::load uses map_load).
197		348
198	=cut	349	=item $locked = cf::lock_active $string
199		350
200	our %LOCK;	351	Return true if the lock is currently active, i.e. somebody has locked it.
		352
		353	=cut
		354
		355	our $LOCKS = new Coro::SemaphoreSet;
201		356
202	sub lock_wait($) {	357	sub lock_wait($) {
203	my ($key) = @_;	358	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	359	}
211		360
212	sub lock_acquire($) {	361	sub lock_acquire($) {
213	my ($key) = @_;	362	$LOCKS->guard ($_[0])
		363	}
214		364
215	# wait, to be sure we are not locked	365	sub lock_active($) {
216	lock_wait $key;	366	$LOCKS->count ($_[0]) < 1
217
218	$LOCK{$key} = [];
219
220	Coro::guard {
221	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };
223	}
224	}	367	}
225		368
226	sub freeze_mainloop {	369	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	370	tick_inhibit_inc;
228		371
229	my $guard = Coro::guard { $TICK_WATCHER->start };	372	&Guard::guard (\&tick_inhibit_dec);
230	$TICK_WATCHER->stop;
231	$guard
232	}	373	}
		374
		375	=item cf::periodic $interval, $cb
		376
		377	Like EV::periodic, but randomly selects a starting point so that the actions
		378	get spread over timer.
		379
		380	=cut
		381
		382	sub periodic($$) {
		383	my ($interval, $cb) = @_;
		384
		385	my $start = rand List::Util::min 180, $interval;
		386
		387	EV::periodic $start, $interval, 0, $cb
		388	}
		389
		390	=item cf::get_slot $time[, $priority[, $name]]
		391
		392	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		393	This call blocks and returns only when you have at least C<$time> seconds
		394	of cpu time till the next tick. The slot is only valid till the next cede.
		395
		396	The optional C<$name> can be used to identify the job to run. It might be
		397	used for statistical purposes and should identify the same time-class.
		398
		399	Useful for short background jobs.
		400
		401	=cut
		402
		403	our @SLOT_QUEUE;
		404	our $SLOT_QUEUE;
		405
		406	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		407	$SLOT_QUEUE = Coro::async {
		408	$Coro::current->desc ("timeslot manager");
		409
		410	my $signal = new Coro::Signal;
		411
		412	while () {
		413	next_job:
		414	my $avail = cf::till_tick;
		415	if ($avail > 0.01) {
		416	for (0 .. $#SLOT_QUEUE) {
		417	if ($SLOT_QUEUE[$_][0] < $avail) {
		418	my $job = splice @SLOT_QUEUE, $_, 1, ();
		419	$job->[2]->send;
		420	Coro::cede;
		421	goto next_job;
		422	}
		423	}
		424	}
		425
		426	if (@SLOT_QUEUE) {
		427	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		428	push @cf::WAIT_FOR_TICK, $signal;
		429	$signal->wait;
		430	} else {
		431	Coro::schedule;
		432	}
		433	}
		434	};
		435
		436	sub get_slot($;$$) {
		437	return if tick_inhibit || $Coro::current == $Coro::main;
		438
		439	my ($time, $pri, $name) = @_;
		440
		441	$time = $TICK * .6 if $time > $TICK * .6;
		442	my $sig = new Coro::Signal;
		443
		444	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		445	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		446	$SLOT_QUEUE->ready;
		447	$sig->wait;
		448	}
		449
		450	=item cf::async { BLOCK }
		451
		452	Currently the same as Coro::async_pool, meaning you cannot use
		453	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		454	thing you are allowed to do is call C<prio> on it.
		455
		456	=cut
		457
		458	BEGIN { *async = \&Coro::async_pool }
233		459
234	=item cf::sync_job { BLOCK }	460	=item cf::sync_job { BLOCK }
235		461
236	The design of crossfire+ requires that the main coro ($Coro::main) is	462	The design of Deliantra requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	463	is always able to handle events or runnable, as Deliantra is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	464	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		465	acceptable.
239		466
240	If it must be done, put the blocking parts into C<sync_job>. This will run	467	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	468	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	469	server will be frozen during this time, so the block should either finish
243	fast or be very important.	470	fast or be very important.
…		…
246		473
247	sub sync_job(&) {	474	sub sync_job(&) {
248	my ($job) = @_;	475	my ($job) = @_;
249		476
250	if ($Coro::current == $Coro::main) {	477	if ($Coro::current == $Coro::main) {
		478	my $time = EV::time;
		479
251	# this is the main coro, too bad, we have to block	480	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	481	# till the operation succeeds, freezing the server :/
253		482
254	# TODO: use suspend/resume instead	483	LOG llevError, Carp::longmess "sync job";#d#
255	# (but this is cancel-safe)	484
256	my $freeze_guard = freeze_mainloop;	485	my $freeze_guard = freeze_mainloop;
257		486
258	my $busy = 1;	487	my $busy = 1;
259	my @res;	488	my @res;
260		489
261	(Coro::async_pool {	490	(async {
		491	$Coro::current->desc ("sync job coro");
262	@res = eval { $job->() };	492	@res = eval { $job->() };
263	warn $@ if $@;	493	warn $@ if $@;
264	undef $busy;	494	undef $busy;
265	})->prio (Coro::PRIO_MAX);	495	})->prio (Coro::PRIO_MAX);
266		496
267	while ($busy) {	497	while ($busy) {
		498	if (Coro::nready) {
268	Coro::cede_notself;	499	Coro::cede_notself;
269	Event::one_event unless Coro::nready;	500	} else {
		501	EV::loop EV::LOOP_ONESHOT;
270	}	502	}
		503	}
		504
		505	my $time = EV::time - $time;
		506
		507	$TICK_START += $time; # do not account sync jobs to server load
271		508
272	wantarray ? @res : $res[0]	509	wantarray ? @res : $res[0]
273	} else {	510	} else {
274	# we are in another coroutine, how wonderful, everything just works	511	# we are in another coroutine, how wonderful, everything just works
275		512
276	$job->()	513	$job->()
277	}	514	}
278	}	515	}
279		516
280	=item $coro = cf::coro { BLOCK }	517	=item $coro = cf::async_ext { BLOCK }
281		518
282	Creates (and readies) and returns a new coro. This coro is automcatially	519	Like async, but this coro is automatically being canceled when the
283	being canceled when the extension calling this is being unloaded.	520	extension calling this is being unloaded.
284		521
285	=cut	522	=cut
286		523
287	sub coro(&) {	524	sub async_ext(&) {
288	my $cb = shift;	525	my $cb = shift;
289		526
290	my $coro = &Coro::async_pool ($cb);	527	my $coro = &Coro::async ($cb);
291		528
292	$coro->on_destroy (sub {	529	$coro->on_destroy (sub {
293	delete $EXT_CORO{$coro+0};	530	delete $EXT_CORO{$coro+0};
294	});	531	});
295	$EXT_CORO{$coro+0} = $coro;	532	$EXT_CORO{$coro+0} = $coro;
296		533
297	$coro	534	$coro
298	}	535	}
299		536
300	sub write_runtime {	537	=item fork_call { }, $args
301	my $runtime = cf::localdir . "/runtime";
302		538
303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	539	Executes the given code block with the given arguments in a seperate
304	or return;	540	process, returning the results. Everything must be serialisable with
		541	Coro::Storable. May, of course, block. Note that the executed sub may
		542	never block itself or use any form of event handling.
305		543
306	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	544	=cut
307	(aio_write $fh, 0, (length $value), $value, 0) <= 0
308	and return;
309		545
310	aio_fsync $fh	546	sub fork_call(&@) {
311	and return;	547	my ($cb, @args) = @_;
312		548
313	close $fh	549	# we seemingly have to make a local copy of the whole thing,
314	or return;	550	# otherwise perl prematurely frees the stuff :/
		551	# TODO: investigate and fix (likely this will be rather laborious)
315		552
316	aio_rename "$runtime~", $runtime	553	my @res = Coro::Util::fork_eval {
317	and return;	554	reset_signals;
		555	&$cb
		556	}, @args;
318		557
		558	wantarray ? @res : $res[-1]
		559	}
		560
		561	=item $coin = coin_from_name $name
		562
		563	=cut
		564
		565	our %coin_alias = (
		566	"silver" => "silvercoin",
		567	"silvercoin" => "silvercoin",
		568	"silvercoins" => "silvercoin",
		569	"gold" => "goldcoin",
		570	"goldcoin" => "goldcoin",
		571	"goldcoins" => "goldcoin",
		572	"platinum" => "platinacoin",
		573	"platinumcoin" => "platinacoin",
		574	"platinumcoins" => "platinacoin",
		575	"platina" => "platinacoin",
		576	"platinacoin" => "platinacoin",
		577	"platinacoins" => "platinacoin",
		578	"royalty" => "royalty",
		579	"royalties" => "royalty",
		580	);
		581
		582	sub coin_from_name($) {
		583	$coin_alias{$_[0]}
		584	? cf::arch::find $coin_alias{$_[0]}
		585	: undef
		586	}
		587
		588	=item $value = cf::db_get $family => $key
		589
		590	Returns a single value from the environment database.
		591
		592	=item cf::db_put $family => $key => $value
		593
		594	Stores the given C<$value> in the family. It can currently store binary
		595	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		596
		597	=item $db = cf::db_table "name"
		598
		599	Create and/or open a new database table. The string must not be "db" and must be unique
		600	within each server.
		601
		602	=cut
		603
		604	sub db_table($) {
		605	my ($name) = @_;
		606	my $db = BDB::db_create $DB_ENV;
		607
		608	eval {
		609	$db->set_flags (BDB::CHKSUM);
		610
		611	utf8::encode $name;
		612	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		613	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		614	cf::cleanup "db_open(db): $!" if $!;
		615	};
		616	cf::cleanup "db_open(db): $@" if $@;
		617
		618	$db
		619	}
		620
		621	our $DB;
		622
		623	sub db_init {
		624	cf::sync_job {
		625	$DB ||= db_table "db";
		626	};
		627	}
		628
		629	sub db_get($$) {
		630	my $key = "$_[0]/$_[1]";
		631
		632	cf::sync_job {
		633	BDB::db_get $DB, undef, $key, my $data;
		634
		635	$! ? ()
		636	: $data
319	1	637	}
		638	}
		639
		640	sub db_put($$$) {
		641	BDB::dbreq_pri 4;
		642	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		643	}
		644
		645	=item cf::cache $id => [$paths...], $processversion => $process
		646
		647	Generic caching function that returns the value of the resource $id,
		648	caching and regenerating as required.
		649
		650	This function can block.
		651
		652	=cut
		653
		654	sub cache {
		655	my ($id, $src, $processversion, $process) = @_;
		656
		657	my $meta =
		658	join "\x00",
		659	$processversion,
		660	map {
		661	aio_stat $_
		662	and Carp::croak "$_: $!";
		663
		664	($_, (stat _)[7,9])
		665	} @$src;
		666
		667	my $dbmeta = db_get cache => "$id/meta";
		668	if ($dbmeta ne $meta) {
		669	# changed, we may need to process
		670
		671	my @data;
		672	my $md5;
		673
		674	for (0 .. $#$src) {
		675	0 <= aio_load $src->[$_], $data[$_]
		676	or Carp::croak "$src->[$_]: $!";
		677	}
		678
		679	# if processing is expensive, check
		680	# checksum first
		681	if (1) {
		682	$md5 =
		683	join "\x00",
		684	$processversion,
		685	map {
		686	cf::cede_to_tick;
		687	($src->[$_], Digest::MD5::md5_hex $data[$_])
		688	} 0.. $#$src;
		689
		690
		691	my $dbmd5 = db_get cache => "$id/md5";
		692	if ($dbmd5 eq $md5) {
		693	db_put cache => "$id/meta", $meta;
		694
		695	return db_get cache => "$id/data";
		696	}
		697	}
		698
		699	my $t1 = Time::HiRes::time;
		700	my $data = $process->(\@data);
		701	my $t2 = Time::HiRes::time;
		702
		703	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		704
		705	db_put cache => "$id/data", $data;
		706	db_put cache => "$id/md5" , $md5;
		707	db_put cache => "$id/meta", $meta;
		708
		709	return $data;
		710	}
		711
		712	db_get cache => "$id/data"
		713	}
		714
		715	=item cf::datalog type => key => value, ...
		716
		717	Log a datalog packet of the given type with the given key-value pairs.
		718
		719	=cut
		720
		721	sub datalog($@) {
		722	my ($type, %kv) = @_;
		723	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
320	}	724	}
321		725
322	=back	726	=back
323		727
324	=cut	728	=cut
325		729
326	#############################################################################	730	#############################################################################
327		731
328	package cf::path;
329
330	sub new {
331	my ($class, $path, $base) = @_;
332
333	$path = $path->as_string if ref $path;
334
335	my $self = bless { }, $class;
336
337	# {... are special paths that are not touched
338	# ?xxx/... are special absolute paths
339	# ?random/... random maps
340	# /! non-realised random map exit
341	# /... normal maps
342	# ~/... per-player maps without a specific player (DO NOT USE)
343	# ~user/... per-player map of a specific user
344
345	if ($path =~ /^{/) {
346	# fine as it is
347	} elsif ($path =~ s{^\?random/}{}) {
348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
349	$self->{random} = cf::from_json $data;
350	} else {
351	if ($path =~ s{^~([^/]+)?}{}) {
352	$self->{user_rel} = 1;
353
354	if (defined $1) {
355	$self->{user} = $1;
356	} elsif ($base =~ m{^~([^/]+)/}) {
357	$self->{user} = $1;
358	} else {
359	warn "cannot resolve user-relative path without user <$path,$base>\n";
360	}
361	} elsif ($path =~ /^\//) {
362	# already absolute
363	} else {
364	$base =~ s{[^/]+/?$}{};
365	return $class->new ("$base/$path");
366	}
367
368	for ($path) {
369	redo if s{/\.?/}{/};
370	redo if s{/[^/]+/\.\./}{/};
371	}
372	}
373
374	$self->{path} = $path;
375
376	$self
377	}
378
379	# the name / primary key / in-game path
380	sub as_string {
381	my ($self) = @_;
382
383	$self->{user_rel} ? "~$self->{user}$self->{path}"
384	: $self->{random} ? "?random/$self->{path}"
385	: $self->{path}
386	}
387
388	# the displayed name, this is a one way mapping
389	sub visible_name {
390	my ($self) = @_;
391
392	# if (my $rmp = $self->{random}) {
393	# # todo: be more intelligent about this
394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
395	# } else {
396	$self->as_string
397	# }
398	}
399
400	# escape the /'s in the path
401	sub _escaped_path {
402	# ∕ is U+2215
403	(my $path = $_[0]{path}) =~ s/\//∕/g;
404	$path
405	}
406
407	# the original (read-only) location
408	sub load_path {
409	my ($self) = @_;
410
411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
412	}
413
414	# the temporary/swap location
415	sub save_path {
416	my ($self) = @_;
417
418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
421	}
422
423	# the unique path, might be eq to save_path
424	sub uniq_path {
425	my ($self) = @_;
426
427	$self->{user_rel} || $self->{random}
428	? undef
429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
430	}
431
432	# return random map parameters, or undef
433	sub random_map_params {
434	my ($self) = @_;
435
436	$self->{random}
437	}
438
439	# this is somewhat ugly, but style maps do need special treatment
440	sub is_style_map {
441	$_[0]{path} =~ m{^/styles/}
442	}
443
444	package cf;
445
446	#############################################################################
447
448	=head2 ATTACHABLE OBJECTS	732	=head2 ATTACHABLE OBJECTS
449		733
450	Many objects in crossfire are so-called attachable objects. That means you can	734	Many objects in deliantra are so-called attachable objects. That means you can
451	attach callbacks/event handlers (a collection of which is called an "attachment")	735	attach callbacks/event handlers (a collection of which is called an "attachment")
452	to it. All such attachable objects support the following methods.	736	to it. All such attachable objects support the following methods.
453		737
454	In the following description, CLASS can be any of C<global>, C<object>	738	In the following description, CLASS can be any of C<global>, C<object>
455	C<player>, C<client> or C<map> (i.e. the attachable objects in	739	C<player>, C<client> or C<map> (i.e. the attachable objects in
456	crossfire+).	740	Deliantra).
457		741
458	=over 4	742	=over 4
459		743
460	=item $attachable->attach ($attachment, key => $value...)	744	=item $attachable->attach ($attachment, key => $value...)
461		745
…		…
505	=item cf::CLASS::attachment $name, ...	789	=item cf::CLASS::attachment $name, ...
506		790
507	Register an attachment by C<$name> through which attachable objects of the	791	Register an attachment by C<$name> through which attachable objects of the
508	given CLASS can refer to this attachment.	792	given CLASS can refer to this attachment.
509		793
510	Some classes such as crossfire maps and objects can specify attachments	794	Some classes such as deliantra maps and objects can specify attachments
511	that are attached at load/instantiate time, thus the need for a name.	795	that are attached at load/instantiate time, thus the need for a name.
512		796
513	These calls expect any number of the following handler/hook descriptions:	797	These calls expect any number of the following handler/hook descriptions:
514		798
515	=over 4	799	=over 4
…		…
575	our @CB_TYPE = (); # registry for type (cf-object class) based events	859	our @CB_TYPE = (); # registry for type (cf-object class) based events
576	our @CB_MAP = ();	860	our @CB_MAP = ();
577		861
578	my %attachment;	862	my %attachment;
579		863
		864	sub cf::attachable::thawer_merge {
		865	# simply override everything except _meta
		866	local $_[0]{_meta};
		867	%{$_[0]} = %{$_[1]};
		868	}
		869
580	sub _attach_cb($$$$) {	870	sub _attach_cb($$$$) {
581	my ($registry, $event, $prio, $cb) = @_;	871	my ($registry, $event, $prio, $cb) = @_;
582		872
583	use sort 'stable';	873	use sort 'stable';
584		874
…		…
618	$registry = $CB_TYPE[$object_type] ||= [];	908	$registry = $CB_TYPE[$object_type] ||= [];
619		909
620	} elsif ($type eq "subtype") {	910	} elsif ($type eq "subtype") {
621	defined $object_type or Carp::croak "subtype specified without type";	911	defined $object_type or Carp::croak "subtype specified without type";
622	my $object_subtype = shift @arg;	912	my $object_subtype = shift @arg;
623	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	913	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
624		914
625	} elsif ($type eq "package") {	915	} elsif ($type eq "package") {
626	my $pkg = shift @arg;	916	my $pkg = shift @arg;
627		917
628	while (my ($name, $id) = each %cb_id) {	918	while (my ($name, $id) = each %cb_id) {
…		…
657	_attach $registry, $klass, @attach;	947	_attach $registry, $klass, @attach;
658	}	948	}
659		949
660	$obj->{$name} = \%arg;	950	$obj->{$name} = \%arg;
661	} else {	951	} else {
662	warn "object uses attachment '$name' that is not available, postponing.\n";	952	warn "object uses attachment '$name' which is not available, postponing.\n";
663	}	953	}
664		954
665	$obj->{_attachment}{$name} = undef;	955	$obj->{_attachment}{$name} = undef;
666	}	956	}
667		957
…		…
669	if (ref $_[0]) {	959	if (ref $_[0]) {
670	_object_attach @_;	960	_object_attach @_;
671	} else {	961	} else {
672	_attach shift->_attach_registry, @_;	962	_attach shift->_attach_registry, @_;
673	}	963	}
		964	_recalc_want;
674	};	965	};
675		966
676	# all those should be optimised	967	# all those should be optimised
677	sub cf::attachable::detach {	968	sub cf::attachable::detach {
678	my ($obj, $name) = @_;	969	my ($obj, $name) = @_;
…		…
681	delete $obj->{_attachment}{$name};	972	delete $obj->{_attachment}{$name};
682	reattach ($obj);	973	reattach ($obj);
683	} else {	974	} else {
684	Carp::croak "cannot, currently, detach class attachments";	975	Carp::croak "cannot, currently, detach class attachments";
685	}	976	}
		977	_recalc_want;
686	};	978	};
687		979
688	sub cf::attachable::attached {	980	sub cf::attachable::attached {
689	my ($obj, $name) = @_;	981	my ($obj, $name) = @_;
690		982
…		…
705	";	997	";
706	die if $@;	998	die if $@;
707	}	999	}
708		1000
709	our $override;	1001	our $override;
710	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1002	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
711		1003
712	sub override {	1004	sub override {
713	$override = 1;	1005	$override = 1;
714	@invoke_results = ();	1006	@INVOKE_RESULTS = (@_);
715	}	1007	}
716		1008
717	sub do_invoke {	1009	sub do_invoke {
718	my $event = shift;	1010	my $event = shift;
719	my $callbacks = shift;	1011	my $callbacks = shift;
720		1012
721	@invoke_results = ();	1013	@INVOKE_RESULTS = ();
722		1014
723	local $override;	1015	local $override;
724		1016
725	for (@$callbacks) {	1017	for (@$callbacks) {
726	eval { &{$_->[1]} };	1018	eval { &{$_->[1]} };
…		…
735	}	1027	}
736		1028
737	0	1029	0
738	}	1030	}
739		1031
740	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1032	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
741		1033
742	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1034	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
743		1035
744	Generate an object-specific event with the given arguments.	1036	Generate an object-specific event with the given arguments.
745		1037
746	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1038	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
747	removed in future versions), and there is no public API to access override	1039	removed in future versions), and there is no public API to access override
748	results (if you must, access C<@cf::invoke_results> directly).	1040	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
749		1041
750	=back	1042	=back
751		1043
752	=cut	1044	=cut
753		1045
754	#############################################################################	1046	#############################################################################
755	# object support	1047	# object support
		1048
		1049	sub _object_equal($$);
		1050	sub _object_equal($$) {
		1051	my ($a, $b) = @_;
		1052
		1053	return 0 unless (ref $a) eq (ref $b);
		1054
		1055	if ("HASH" eq ref $a) {
		1056	my @ka = keys %$a;
		1057	my @kb = keys %$b;
		1058
		1059	return 0 if @ka != @kb;
		1060
		1061	for (0 .. $#ka) {
		1062	return 0 unless $ka[$_] eq $kb[$_];
		1063	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1064	}
		1065
		1066	} elsif ("ARRAY" eq ref $a) {
		1067
		1068	return 0 if @$a != @$b;
		1069
		1070	for (0 .. $#$a) {
		1071	return 0 unless _object_equal $a->[$_], $b->[$_];
		1072	}
		1073
		1074	} elsif ($a ne $b) {
		1075	return 0;
		1076	}
		1077
		1078	1
		1079	}
		1080
		1081	our $SLOW_MERGES;#d#
		1082	sub _can_merge {
		1083	my ($ob1, $ob2) = @_;
		1084
		1085	++$SLOW_MERGES;#d#
		1086
		1087	# we do the slow way here
		1088	return _object_equal $ob1, $ob2
		1089	}
756		1090
757	sub reattach {	1091	sub reattach {
758	# basically do the same as instantiate, without calling instantiate	1092	# basically do the same as instantiate, without calling instantiate
759	my ($obj) = @_;	1093	my ($obj) = @_;
		1094
		1095	# no longer needed after getting rid of delete_package?
		1096	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
760		1097
761	my $registry = $obj->registry;	1098	my $registry = $obj->registry;
762		1099
763	@$registry = ();	1100	@$registry = ();
764		1101
…		…
779	cf::attachable->attach (	1116	cf::attachable->attach (
780	prio => -1000000,	1117	prio => -1000000,
781	on_instantiate => sub {	1118	on_instantiate => sub {
782	my ($obj, $data) = @_;	1119	my ($obj, $data) = @_;
783		1120
784	$data = from_json $data;	1121	$data = decode_json $data;
785		1122
786	for (@$data) {	1123	for (@$data) {
787	my ($name, $args) = @$_;	1124	my ($name, $args) = @$_;
788		1125
789	$obj->attach ($name, %{$args || {} });	1126	$obj->attach ($name, %{$args || {} });
…		…
805	sub object_freezer_save {	1142	sub object_freezer_save {
806	my ($filename, $rdata, $objs) = @_;	1143	my ($filename, $rdata, $objs) = @_;
807		1144
808	sync_job {	1145	sync_job {
809	if (length $$rdata) {	1146	if (length $$rdata) {
		1147	utf8::decode (my $decname = $filename);
810	warn sprintf "saving %s (%d,%d)\n",	1148	warn sprintf "saving %s (%d,%d)\n",
811	$filename, length $$rdata, scalar @$objs;	1149	$decname, length $$rdata, scalar @$objs;
812		1150
813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1151	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
814	chmod SAVE_MODE, $fh;	1152	aio_chmod $fh, SAVE_MODE;
815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1153	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
816	aio_fsync $fh;	1154	aio_fsync $fh if $cf::USE_FSYNC;
817	close $fh;	1155	aio_close $fh;
818		1156
819	if (@$objs) {	1157	if (@$objs) {
820	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1158	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
821	chmod SAVE_MODE, $fh;	1159	aio_chmod $fh, SAVE_MODE;
822	my $data = Storable::nfreeze { version => 1, objs => $objs };	1160	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
823	aio_write $fh, 0, (length $data), $data, 0;	1161	aio_write $fh, 0, (length $data), $data, 0;
824	aio_fsync $fh;	1162	aio_fsync $fh if $cf::USE_FSYNC;
825	close $fh;	1163	aio_close $fh;
826	aio_rename "$filename.pst~", "$filename.pst";	1164	aio_rename "$filename.pst~", "$filename.pst";
827	}	1165	}
828	} else {	1166	} else {
829	aio_unlink "$filename.pst";	1167	aio_unlink "$filename.pst";
830	}	1168	}
831		1169
832	aio_rename "$filename~", $filename;	1170	aio_rename "$filename~", $filename;
		1171
		1172	$filename =~ s%/[^/]+$%%;
		1173	aio_pathsync $filename if $cf::USE_FSYNC;
833	} else {	1174	} else {
834	warn "FATAL: $filename~: $!\n";	1175	warn "unable to save objects: $filename~: $!\n";
835	}	1176	}
836	} else {	1177	} else {
837	aio_unlink $filename;	1178	aio_unlink $filename;
838	aio_unlink "$filename.pst";	1179	aio_unlink "$filename.pst";
839	}	1180	}
840	}	1181	};
841	}	1182	}
842		1183
843	sub object_freezer_as_string {	1184	sub object_freezer_as_string {
844	my ($rdata, $objs) = @_;	1185	my ($rdata, $objs) = @_;
845		1186
…		…
857	or return;	1198	or return;
858		1199
859	unless (aio_stat "$filename.pst") {	1200	unless (aio_stat "$filename.pst") {
860	(aio_load "$filename.pst", $av) >= 0	1201	(aio_load "$filename.pst", $av) >= 0
861	or return;	1202	or return;
		1203
862	$av = eval { (Storable::thaw $av)->{objs} };	1204	my $st = eval { Coro::Storable::thaw $av };
		1205	$av = $st->{objs};
863	}	1206	}
864		1207
		1208	utf8::decode (my $decname = $filename);
865	warn sprintf "loading %s (%d)\n",	1209	warn sprintf "loading %s (%d,%d)\n",
866	$filename, length $data, scalar @{$av || []};#d#	1210	$decname, length $data, scalar @{$av || []};
		1211
867	return ($data, $av);	1212	($data, $av)
868	}	1213	}
		1214
		1215	=head2 COMMAND CALLBACKS
		1216
		1217	=over 4
		1218
		1219	=cut
869		1220
870	#############################################################################	1221	#############################################################################
871	# command handling &c	1222	# command handling &c
872		1223
873	=item cf::register_command $name => \&callback($ob,$args);	1224	=item cf::register_command $name => \&callback($ob,$args);
…		…
886	push @{ $COMMAND{$name} }, [$caller, $cb];	1237	push @{ $COMMAND{$name} }, [$caller, $cb];
887	}	1238	}
888		1239
889	=item cf::register_extcmd $name => \&callback($pl,$packet);	1240	=item cf::register_extcmd $name => \&callback($pl,$packet);
890		1241
891	Register a callbackf ro execution when the client sends an extcmd packet.	1242	Register a callback for execution when the client sends an (synchronous)
		1243	extcmd packet. Ext commands will be processed in the order they are
		1244	received by the server, like other user commands. The first argument is
		1245	the logged-in player. Ext commands can only be processed after a player
		1246	has logged in successfully.
892		1247
893	If the callback returns something, it is sent back as if reply was being	1248	If the callback returns something, it is sent back as if reply was being
894	called.	1249	called.
895		1250
		1251	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1252
		1253	Register a callback for execution when the client sends an (asynchronous)
		1254	exticmd packet. Exti commands are processed by the server as soon as they
		1255	are received, i.e. out of order w.r.t. other commands. The first argument
		1256	is a client socket. Exti commands can be received anytime, even before
		1257	log-in.
		1258
		1259	If the callback returns something, it is sent back as if reply was being
		1260	called.
		1261
896	=cut	1262	=cut
897		1263
898	sub register_extcmd {	1264	sub register_extcmd {
899	my ($name, $cb) = @_;	1265	my ($name, $cb) = @_;
900		1266
901	my $caller = caller;
902	#warn "registering extcmd '$name' to '$caller'";
903
904	$EXTCMD{$name} = [$cb, $caller];	1267	$EXTCMD{$name} = $cb;
905	}	1268	}
		1269
		1270	sub register_exticmd {
		1271	my ($name, $cb) = @_;
		1272
		1273	$EXTICMD{$name} = $cb;
		1274	}
		1275
		1276	use File::Glob ();
906		1277
907	cf::player->attach (	1278	cf::player->attach (
908	on_command => sub {	1279	on_command => sub {
909	my ($pl, $name, $params) = @_;	1280	my ($pl, $name, $params) = @_;
910		1281
…		…
918	cf::override;	1289	cf::override;
919	},	1290	},
920	on_extcmd => sub {	1291	on_extcmd => sub {
921	my ($pl, $buf) = @_;	1292	my ($pl, $buf) = @_;
922		1293
923	my $msg = eval { from_json $buf };	1294	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
924		1295
925	if (ref $msg) {	1296	if (ref $msg) {
		1297	my ($type, $reply, @payload) =
		1298	"ARRAY" eq ref $msg
		1299	? @$msg
		1300	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1301
		1302	my @reply;
		1303
926	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1304	if (my $cb = $EXTCMD{$type}) {
927	if (my %reply = $cb->[0]->($pl, $msg)) {	1305	@reply = $cb->($pl, @payload);
928	$pl->ext_reply ($msg->{msgid}, %reply);
929	}
930	}	1306	}
		1307
		1308	$pl->ext_reply ($reply, @reply)
		1309	if $reply;
		1310
931	} else {	1311	} else {
932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1312	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
933	}	1313	}
934		1314
935	cf::override;	1315	cf::override;
936	},	1316	},
937	);	1317	);
938		1318
939	sub register {	1319	# "readahead" all extensions
940	my ($base, $pkg) = @_;	1320	sub cache_extensions {
		1321	my $grp = IO::AIO::aio_group;
941		1322
942	#TODO	1323	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
943	}	1324	for (grep /\.ext$/, @{$_[0]}) {
		1325	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1326	}
		1327	};
944		1328
		1329	$grp
		1330	}
		1331
945	sub load_extension {	1332	sub load_extensions {
		1333	cf::sync_job {
		1334	my %todo;
		1335
		1336	for my $path (<$LIBDIR/*.ext>) {
		1337	next unless -r $path;
		1338
		1339	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1340	my $base = $1;
		1341	my $pkg = $1;
		1342	$pkg =~ s/[^[:word:]]/_/g;
		1343	$pkg = "ext::$pkg";
		1344
		1345	open my $fh, "<:utf8", $path
		1346	or die "$path: $!";
		1347
		1348	my $source = do { local $/; <$fh> };
		1349
		1350	my %ext = (
		1351	path => $path,
		1352	base => $base,
		1353	pkg => $pkg,
		1354	);
		1355
		1356	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1357	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1358
		1359	$ext{source} =
		1360	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1361	. "#line 1 \"$path\"\n{\n"
		1362	. $source
		1363	. "\n};\n1";
		1364
		1365	$todo{$base} = \%ext;
		1366	}
		1367
		1368	my %done;
		1369	while (%todo) {
		1370	my $progress;
		1371
		1372	while (my ($k, $v) = each %todo) {
		1373	for (split /,\s*/, $v->{meta}{depends}) {
		1374	goto skip
		1375	unless exists $done{$_};
		1376	}
		1377
		1378	warn "... loading '$k' into '$v->{pkg}'\n";
		1379
		1380	unless (eval $v->{source}) {
		1381	my $msg = $@ ? "$v->{path}: $@\n"
		1382	: "$v->{base}: extension inactive.\n";
		1383
		1384	if (exists $v->{meta}{mandatory}) {
		1385	warn $msg;
		1386	cf::cleanup "mandatory extension failed to load, exiting.";
		1387	}
		1388
		1389	warn $msg;
		1390	}
		1391
		1392	$done{$k} = delete $todo{$k};
		1393	push @EXTS, $v->{pkg};
		1394	$progress = 1;
		1395	}
		1396
		1397	skip:
		1398	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1399	unless $progress;
		1400	}
		1401	};
		1402	}
		1403
		1404	#############################################################################
		1405
		1406	=back
		1407
		1408	=head2 CORE EXTENSIONS
		1409
		1410	Functions and methods that extend core deliantra objects.
		1411
		1412	=cut
		1413
		1414	package cf::player;
		1415
		1416	use Coro::AIO;
		1417
		1418	=head3 cf::player
		1419
		1420	=over 4
		1421
		1422	=item cf::player::num_playing
		1423
		1424	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1425
		1426	=cut
		1427
		1428	sub num_playing {
		1429	scalar grep
		1430	$_->ob->map
		1431	&& !$_->hidden
		1432	&& !$_->ob->flag (cf::FLAG_WIZ),
		1433	cf::player::list
		1434	}
		1435
		1436	=item cf::player::find $login
		1437
		1438	Returns the given player object, loading it if necessary (might block).
		1439
		1440	=cut
		1441
		1442	sub playerdir($) {
		1443	"$PLAYERDIR/"
		1444	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1445	}
		1446
		1447	sub path($) {
		1448	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1449
		1450	(playerdir $login) . "/playerdata"
		1451	}
		1452
		1453	sub find_active($) {
		1454	$cf::PLAYER{$_[0]}
		1455	and $cf::PLAYER{$_[0]}->active
		1456	and $cf::PLAYER{$_[0]}
		1457	}
		1458
		1459	sub exists($) {
		1460	my ($login) = @_;
		1461
		1462	$cf::PLAYER{$login}
		1463	or !aio_stat path $login
		1464	}
		1465
		1466	sub find($) {
		1467	return $cf::PLAYER{$_[0]} || do {
		1468	my $login = $_[0];
		1469
		1470	my $guard = cf::lock_acquire "user_find:$login";
		1471
		1472	$cf::PLAYER{$_[0]} || do {
		1473	# rename old playerfiles to new ones
		1474	#TODO: remove when no longer required
		1475	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1476	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1477	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1478	aio_unlink +(playerdir $login) . "/$login.pl";
		1479
		1480	my $f = new_from_file cf::object::thawer path $login
		1481	or return;
		1482
		1483	my $pl = cf::player::load_pl $f
		1484	or return;
		1485
		1486	local $cf::PLAYER_LOADING{$login} = $pl;
		1487	$f->resolve_delayed_derefs;
		1488	$cf::PLAYER{$login} = $pl
		1489	}
		1490	}
		1491	}
		1492
		1493	sub save($) {
		1494	my ($pl) = @_;
		1495
		1496	return if $pl->{deny_save};
		1497
		1498	my $path = path $pl;
		1499	my $guard = cf::lock_acquire "user_save:$path";
		1500
		1501	return if $pl->{deny_save};
		1502
		1503	aio_mkdir playerdir $pl, 0770;
		1504	$pl->{last_save} = $cf::RUNTIME;
		1505
		1506	cf::get_slot 0.01;
		1507
		1508	$pl->save_pl ($path);
		1509	cf::cede_to_tick;
		1510	}
		1511
		1512	sub new($) {
		1513	my ($login) = @_;
		1514
		1515	my $self = create;
		1516
		1517	$self->ob->name ($login);
		1518	$self->{deny_save} = 1;
		1519
		1520	$cf::PLAYER{$login} = $self;
		1521
		1522	$self
		1523	}
		1524
		1525	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1526
		1527	=cut
		1528
		1529	sub send_msg {
		1530	my $ns = shift->ns
		1531	or return;
		1532	$ns->send_msg (@_);
		1533	}
		1534
		1535	=item $pl->quit_character
		1536
		1537	Nukes the player without looking back. If logged in, the connection will
		1538	be destroyed. May block for a long time.
		1539
		1540	=cut
		1541
		1542	sub quit_character {
		1543	my ($pl) = @_;
		1544
		1545	my $name = $pl->ob->name;
		1546
		1547	$pl->{deny_save} = 1;
		1548	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1549
		1550	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1551	$pl->deactivate;
		1552	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1553	$pl->ob->check_score;
		1554	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1555	$pl->ns->destroy if $pl->ns;
		1556
		1557	my $path = playerdir $pl;
		1558	my $temp = "$path~$cf::RUNTIME~deleting~";
		1559	aio_rename $path, $temp;
		1560	delete $cf::PLAYER{$pl->ob->name};
		1561	$pl->destroy;
		1562
		1563	my $prefix = qr<^~\Q$name\E/>;
		1564
		1565	# nuke player maps
		1566	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1567
		1568	IO::AIO::aio_rmtree $temp;
		1569	}
		1570
		1571	=item $pl->kick
		1572
		1573	Kicks a player out of the game. This destroys the connection.
		1574
		1575	=cut
		1576
		1577	sub kick {
		1578	my ($pl, $kicker) = @_;
		1579
		1580	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1581	$pl->killer ("kicked");
		1582	$pl->ns->destroy;
		1583	}
		1584
		1585	=item cf::player::list_logins
		1586
		1587	Returns am arrayref of all valid playernames in the system, can take a
		1588	while and may block, so not sync_job-capable, ever.
		1589
		1590	=cut
		1591
		1592	sub list_logins {
		1593	my $dirs = aio_readdir $PLAYERDIR
		1594	or return [];
		1595
		1596	my @logins;
		1597
		1598	for my $login (@$dirs) {
		1599	my $path = path $login;
		1600
		1601	# a .pst is a dead give-away for a valid player
		1602	# if no pst file found, open and chekc for blocked users
		1603	if (aio_stat "$path.pst") {
		1604	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1605	aio_read $fh, 0, 512, my $buf, 0 or next;
		1606	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1607	}
		1608
		1609	utf8::decode $login;
		1610	push @logins, $login;
		1611	}
		1612
		1613	\@logins
		1614	}
		1615
		1616	=item $player->maps
		1617
		1618	Returns an arrayref of map paths that are private for this
		1619	player. May block.
		1620
		1621	=cut
		1622
		1623	sub maps($) {
		1624	my ($pl) = @_;
		1625
		1626	$pl = ref $pl ? $pl->ob->name : $pl;
		1627
		1628	my $files = aio_readdir playerdir $pl
		1629	or return;
		1630
		1631	my @paths;
		1632
		1633	for (@$files) {
		1634	utf8::decode $_;
		1635	next if /\.(?:pl|pst)$/;
		1636	next unless /^$PATH_SEP/o;
		1637
		1638	push @paths, cf::map::normalise "~$pl/$_";
		1639	}
		1640
		1641	\@paths
		1642	}
		1643
		1644	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1645
		1646	Expand deliantra pod fragments into protocol xml.
		1647
		1648	=item $player->ext_reply ($msgid, @msg)
		1649
		1650	Sends an ext reply to the player.
		1651
		1652	=cut
		1653
		1654	sub ext_reply($$@) {
		1655	my ($self, $id, @msg) = @_;
		1656
		1657	$self->ns->ext_reply ($id, @msg)
		1658	}
		1659
		1660	=item $player->ext_msg ($type, @msg)
		1661
		1662	Sends an ext event to the client.
		1663
		1664	=cut
		1665
		1666	sub ext_msg($$@) {
		1667	my ($self, $type, @msg) = @_;
		1668
		1669	$self->ns->ext_msg ($type, @msg);
		1670	}
		1671
		1672	=head3 cf::region
		1673
		1674	=over 4
		1675
		1676	=cut
		1677
		1678	package cf::region;
		1679
		1680	=item cf::region::find_by_path $path
		1681
		1682	Tries to decuce the likely region for a map knowing only its path.
		1683
		1684	=cut
		1685
		1686	sub find_by_path($) {
946	my ($path) = @_;	1687	my ($path) = @_;
947		1688
948	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1689	my ($match, $specificity);
949	my $base = $1;
950	my $pkg = $1;
951	$pkg =~ s/[^[:word:]]/_/g;
952	$pkg = "ext::$pkg";
953		1690
954	warn "loading '$path' into '$pkg'\n";	1691	for my $region (list) {
955		1692	if ($region->{match} && $path =~ $region->{match}) {
956	open my $fh, "<:utf8", $path	1693	($match, $specificity) = ($region, $region->specificity)
957	or die "$path: $!";	1694	if $region->specificity > $specificity;
958		1695	}
959	my $source =
960	"package $pkg; use strict; use utf8;\n"
961	. "#line 1 \"$path\"\n{\n"
962	. (do { local $/; <$fh> })
963	. "\n};\n1";
964
965	eval $source
966	or die $@ ? "$path: $@\n"
967	: "extension disabled.\n";
968
969	push @exts, $pkg;
970	$ext_pkg{$base} = $pkg;
971
972	# no strict 'refs';
973	# @{"$pkg\::ISA"} = ext::;
974
975	register $base, $pkg;
976	}
977
978	sub unload_extension {
979	my ($pkg) = @_;
980
981	warn "removing extension $pkg\n";
982
983	# remove hooks
984	#TODO
985	# for my $idx (0 .. $#PLUGIN_EVENT) {
986	# delete $hook[$idx]{$pkg};
987	# }	1696	}
988		1697
989	# remove commands	1698	$match
990	for my $name (keys %COMMAND) {
991	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
992
993	if (@cb) {
994	$COMMAND{$name} = \@cb;
995	} else {
996	delete $COMMAND{$name};
997	}
998	}
999
1000	# remove extcmds
1001	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1002	delete $EXTCMD{$name};
1003	}
1004
1005	if (my $cb = $pkg->can ("unload")) {
1006	eval {
1007	$cb->($pkg);
1008	1
1009	} or warn "$pkg unloaded, but with errors: $@";
1010	}
1011
1012	Symbol::delete_package $pkg;
1013	}
1014
1015	sub load_extensions {
1016	for my $ext (<$LIBDIR/*.ext>) {
1017	next unless -r $ext;
1018	eval {
1019	load_extension $ext;
1020	1
1021	} or warn "$ext not loaded: $@";
1022	}
1023	}
1024
1025	#############################################################################
1026	# load/save/clean perl data associated with a map
1027
1028	*cf::mapsupport::on_clean = sub {
1029	my ($map) = @_;
1030
1031	my $path = $map->tmpname;
1032	defined $path or return;
1033
1034	unlink "$path.pst";
1035	};
1036
1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1038
1039	#############################################################################
1040	# load/save perl data associated with player->ob objects
1041
1042	sub all_objects(@) {
1043	@_, map all_objects ($_->inv), @_
1044	}
1045
1046	# TODO: compatibility cruft, remove when no longer needed
1047	cf::player->attach (
1048	on_load => sub {
1049	my ($pl, $path) = @_;
1050
1051	for my $o (all_objects $pl->ob) {
1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1053	$o->set_ob_key_value ("_perl_data");
1054
1055	%$o = %{ Storable::thaw pack "H*", $value };
1056	}
1057	}
1058	},
1059	);
1060
1061	#############################################################################
1062
1063	=head2 CORE EXTENSIONS
1064
1065	Functions and methods that extend core crossfire objects.
1066
1067	=head3 cf::player
1068
1069	=over 4
1070
1071	=item cf::player::exists $login
1072
1073	Returns true when the given account exists.
1074
1075	=cut
1076
1077	sub cf::player::exists($) {
1078	cf::player::find $_[0]
1079	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1080	}
1081
1082	=item $player->ext_reply ($msgid, $msgtype, %msg)
1083
1084	Sends an ext reply to the player.
1085
1086	=cut
1087
1088	sub cf::player::ext_reply($$$%) {
1089	my ($self, $id, %msg) = @_;
1090
1091	$msg{msgid} = $id;
1092
1093	$self->send ("ext " . to_json \%msg);
1094	}	1699	}
1095		1700
1096	=back	1701	=back
1097
1098		1702
1099	=head3 cf::map	1703	=head3 cf::map
1100		1704
1101	=over 4	1705	=over 4
1102		1706
…		…
1105	package cf::map;	1709	package cf::map;
1106		1710
1107	use Fcntl;	1711	use Fcntl;
1108	use Coro::AIO;	1712	use Coro::AIO;
1109		1713
		1714	use overload
		1715	'""' => \&as_string,
		1716	fallback => 1;
		1717
1110	our $MAX_RESET = 3600;	1718	our $MAX_RESET = 3600;
1111	our $DEFAULT_RESET = 3000;	1719	our $DEFAULT_RESET = 3000;
1112		1720
1113	sub generate_random_map {	1721	sub generate_random_map {
1114	my ($path, $rmp) = @_;	1722	my ($self, $rmp) = @_;
		1723
		1724	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1115		1725
1116	# mit "rum" bekleckern, nicht	1726	# mit "rum" bekleckern, nicht
1117	cf::map::_create_random_map	1727	$self->_create_random_map (
1118	$path,
1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1728	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1729	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1730	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1122	$rmp->{exit_on_final_map},	1731	$rmp->{exit_on_final_map},
1123	$rmp->{xsize}, $rmp->{ysize},	1732	$rmp->{xsize}, $rmp->{ysize},
1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1733	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1734	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1735	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1127	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1736	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1737	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1129	(cf::region::find $rmp->{region})	1738	(cf::region::find $rmp->{region}), $rmp->{custom}
		1739	)
1130	}	1740	}
1131		1741
1132	# and all this just because we cannot iterate over	1742	=item cf::map->register ($regex, $prio)
1133	# all maps in C++...
1134	sub change_all_map_light {
1135	my ($change) = @_;
1136		1743
1137	$_->change_map_light ($change)	1744	Register a handler for the map path matching the given regex at the
1138	for grep $_->outdoor, values %cf::MAP;	1745	givne priority (higher is better, built-in handlers have priority 0, the
1139	}	1746	default).
1140		1747
1141	sub try_load_header($) {	1748	=cut
		1749
		1750	sub register {
		1751	my (undef, $regex, $prio) = @_;
		1752	my $pkg = caller;
		1753
		1754	no strict;
		1755	push @{"$pkg\::ISA"}, __PACKAGE__;
		1756
		1757	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1758	}
		1759
		1760	# also paths starting with '/'
		1761	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1762
		1763	sub thawer_merge {
		1764	my ($self, $merge) = @_;
		1765
		1766	# we have to keep some variables in memory intact
		1767	local $self->{path};
		1768	local $self->{load_path};
		1769
		1770	$self->SUPER::thawer_merge ($merge);
		1771	}
		1772
		1773	sub normalise {
1142	my ($path) = @_;	1774	my ($path, $base) = @_;
		1775
		1776	$path = "$path"; # make sure its a string
		1777
		1778	$path =~ s/\.map$//;
		1779
		1780	# map plan:
		1781	#
		1782	# /! non-realised random map exit (special hack!)
		1783	# {... are special paths that are not being touched
		1784	# ?xxx/... are special absolute paths
		1785	# ?random/... random maps
		1786	# /... normal maps
		1787	# ~user/... per-player map of a specific user
		1788
		1789	$path =~ s/$PATH_SEP/\//go;
		1790
		1791	# treat it as relative path if it starts with
		1792	# something that looks reasonable
		1793	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1794	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1795
		1796	$base =~ s{[^/]+/?$}{};
		1797	$path = "$base/$path";
		1798	}
		1799
		1800	for ($path) {
		1801	redo if s{//}{/};
		1802	redo if s{/\.?/}{/};
		1803	redo if s{/[^/]+/\.\./}{/};
		1804	}
		1805
		1806	$path
		1807	}
		1808
		1809	sub new_from_path {
		1810	my (undef, $path, $base) = @_;
		1811
		1812	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1813
		1814	$path = normalise $path, $base;
		1815
		1816	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1817	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1818	my $self = bless cf::map::new, $pkg;
		1819	$self->{path} = $path; $self->path ($path);
		1820	$self->init; # pass $1 etc.
		1821	return $self;
		1822	}
		1823	}
		1824
		1825	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1826	()
		1827	}
		1828
		1829	sub init {
		1830	my ($self) = @_;
		1831
		1832	$self
		1833	}
		1834
		1835	sub as_string {
		1836	my ($self) = @_;
		1837
		1838	"$self->{path}"
		1839	}
		1840
		1841	# the displayed name, this is a one way mapping
		1842	sub visible_name {
		1843	&as_string
		1844	}
		1845
		1846	# the original (read-only) location
		1847	sub load_path {
		1848	my ($self) = @_;
		1849
		1850	"$MAPDIR/$self->{path}.map"
		1851	}
		1852
		1853	# the temporary/swap location
		1854	sub save_path {
		1855	my ($self) = @_;
		1856
		1857	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1858	"$TMPDIR/$path.map"
		1859	}
		1860
		1861	# the unique path, undef == no special unique path
		1862	sub uniq_path {
		1863	my ($self) = @_;
		1864
		1865	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1866	"$UNIQUEDIR/$path"
		1867	}
		1868
		1869	sub decay_objects {
		1870	my ($self) = @_;
		1871
		1872	return if $self->{deny_reset};
		1873
		1874	$self->do_decay_objects;
		1875	}
		1876
		1877	sub unlink_save {
		1878	my ($self) = @_;
		1879
		1880	utf8::encode (my $save = $self->save_path);
		1881	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1882	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1883	}
		1884
		1885	sub load_header_from($) {
		1886	my ($self, $path) = @_;
1143		1887
1144	utf8::encode $path;	1888	utf8::encode $path;
1145	aio_open $path, O_RDONLY, 0	1889	my $f = new_from_file cf::object::thawer $path
1146	or return;	1890	or return;
1147		1891
1148	my $map = cf::map::new	1892	$self->_load_header ($f)
1149	or return;	1893	or return;
1150		1894
1151	# for better error messages only, will be overwritten	1895	local $MAP_LOADING{$self->{path}} = $self;
1152	$map->path ($path);	1896	$f->resolve_delayed_derefs;
1153		1897
1154	$map->load_header ($path)	1898	$self->{load_path} = $path;
		1899
		1900	1
		1901	}
		1902
		1903	sub load_header_orig {
		1904	my ($self) = @_;
		1905
		1906	$self->load_header_from ($self->load_path)
		1907	}
		1908
		1909	sub load_header_temp {
		1910	my ($self) = @_;
		1911
		1912	$self->load_header_from ($self->save_path)
		1913	}
		1914
		1915	sub prepare_temp {
		1916	my ($self) = @_;
		1917
		1918	$self->last_access ((delete $self->{last_access})
		1919	|| $cf::RUNTIME); #d#
		1920	# safety
		1921	$self->{instantiate_time} = $cf::RUNTIME
		1922	if $self->{instantiate_time} > $cf::RUNTIME;
		1923	}
		1924
		1925	sub prepare_orig {
		1926	my ($self) = @_;
		1927
		1928	$self->{load_original} = 1;
		1929	$self->{instantiate_time} = $cf::RUNTIME;
		1930	$self->last_access ($cf::RUNTIME);
		1931	$self->instantiate;
		1932	}
		1933
		1934	sub load_header {
		1935	my ($self) = @_;
		1936
		1937	if ($self->load_header_temp) {
		1938	$self->prepare_temp;
		1939	} else {
		1940	$self->load_header_orig
1155	or return;	1941	or return;
		1942	$self->prepare_orig;
		1943	}
1156		1944
1157	$map->{load_path} = $path;	1945	$self->{deny_reset} = 1
		1946	if $self->no_reset;
1158		1947
1159	$map	1948	$self->default_region (cf::region::find_by_path $self->{path})
		1949	unless $self->default_region;
		1950
		1951	1
1160	}	1952	}
1161		1953
1162	sub find;	1954	sub find;
1163	sub find {	1955	sub find {
1164	my ($path, $origin) = @_;	1956	my ($path, $origin) = @_;
1165		1957
1166	#warn "find<$path,$origin>\n";#d#
1167
1168	$path = new cf::path $path, $origin && $origin->path;	1958	$path = normalise $path, $origin && $origin->path;
1169	my $key = $path->as_string;
1170		1959
1171	cf::lock_wait "map_find:$key";	1960	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1172
1173	$cf::MAP{$key} || do {
1174	my $guard = cf::lock_acquire "map_find:$key";	1961	my $guard2 = cf::lock_acquire "map_find:$path";
1175		1962
1176	# do it the slow way	1963	$cf::MAP{$path} || do {
1177	my $map = try_load_header $path->save_path;	1964	my $map = new_from_path cf::map $path
1178
1179	Coro::cede;
1180
1181	if ($map) {
1182	$map->last_access ((delete $map->{last_access})
1183	|| $cf::RUNTIME); #d#
1184	# safety
1185	$map->{instantiate_time} = $cf::RUNTIME
1186	if $map->{instantiate_time} > $cf::RUNTIME;
1187	} else {
1188	if (my $rmp = $path->random_map_params) {
1189	$map = generate_random_map $key, $rmp;
1190	} else {
1191	$map = try_load_header $path->load_path;
1192	}
1193
1194	$map or return;	1965	or return;
1195		1966
1196	$map->{load_original} = 1;
1197	$map->{instantiate_time} = $cf::RUNTIME;
1198	$map->last_access ($cf::RUNTIME);
1199	$map->instantiate;
1200
1201	# per-player maps become, after loading, normal maps
1202	$map->per_player (0) if $path->{user_rel};
1203	}
1204
1205	$map->path ($key);
1206	$map->{path} = $path;
1207	$map->{last_save} = $cf::RUNTIME;	1967	$map->{last_save} = $cf::RUNTIME;
1208		1968
1209	Coro::cede;	1969	$map->load_header
		1970	or return;
1210		1971
1211	if ($map->should_reset) {	1972	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1973	# doing this can freeze the server in a sync job, obviously
		1974	#$cf::WAIT_FOR_TICK->wait;
		1975	undef $guard2;
		1976	undef $guard1;
1212	$map->reset;	1977	$map->reset;
1213	undef $guard;
1214	$map = find $path	1978	return find $path;
1215	or return;
1216	}	1979	}
1217		1980
1218	$cf::MAP{$key} = $map	1981	$cf::MAP{$path} = $map
1219	}	1982	}
1220	}	1983	}
		1984
		1985	sub pre_load { }
		1986	sub post_load { }
1221		1987
1222	sub load {	1988	sub load {
1223	my ($self) = @_;	1989	my ($self) = @_;
1224		1990
		1991	local $self->{deny_reset} = 1; # loading can take a long time
		1992
1225	my $path = $self->{path};	1993	my $path = $self->{path};
		1994
		1995	{
1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1996	my $guard = cf::lock_acquire "map_data:$path";
1227		1997
		1998	return unless $self->valid;
1228	return if $self->in_memory != cf::MAP_SWAPPED;	1999	return unless $self->in_memory == cf::MAP_SWAPPED;
1229		2000
1230	$self->in_memory (cf::MAP_LOADING);	2001	$self->in_memory (cf::MAP_LOADING);
1231		2002
1232	$self->alloc;	2003	$self->alloc;
1233	$self->load_objects ($self->{load_path}, 1)	2004
		2005	$self->pre_load;
		2006	cf::cede_to_tick;
		2007
		2008	my $f = new_from_file cf::object::thawer $self->{load_path};
		2009	$f->skip_block;
		2010	$self->_load_objects ($f)
1234	or return;	2011	or return;
1235		2012
1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2013	$self->post_load_original
1237	if delete $self->{load_original};	2014	if delete $self->{load_original};
1238		2015
1239	if (my $uniq = $path->uniq_path) {	2016	if (my $uniq = $self->uniq_path) {
1240	utf8::encode $uniq;	2017	utf8::encode $uniq;
1241	if (aio_open $uniq, O_RDONLY, 0) {	2018	unless (aio_stat $uniq) {
		2019	if (my $f = new_from_file cf::object::thawer $uniq) {
1242	$self->clear_unique_items;	2020	$self->clear_unique_items;
1243	$self->load_objects ($uniq, 0);	2021	$self->_load_objects ($f);
		2022	$f->resolve_delayed_derefs;
		2023	}
1244	}	2024	}
1245	}	2025	}
1246		2026
1247	Coro::cede;	2027	$f->resolve_delayed_derefs;
1248		2028
		2029	cf::cede_to_tick;
1249	# now do the right thing for maps	2030	# now do the right thing for maps
1250	$self->link_multipart_objects;	2031	$self->link_multipart_objects;
1251
1252	if ($self->{path}->is_style_map) {
1253	$self->{deny_save} = 1;
1254	$self->{deny_reset} = 1;
1255	} else {
1256	$self->fix_auto_apply;
1257	$self->decay_objects;
1258	$self->update_buttons;
1259	$self->set_darkness_map;
1260	$self->difficulty ($self->estimate_difficulty)	2032	$self->difficulty ($self->estimate_difficulty)
1261	unless $self->difficulty;	2033	unless $self->difficulty;
		2034	cf::cede_to_tick;
		2035
		2036	unless ($self->{deny_activate}) {
		2037	$self->decay_objects;
		2038	$self->fix_auto_apply;
		2039	$self->update_buttons;
		2040	cf::cede_to_tick;
1262	$self->activate;	2041	$self->activate;
1263	}	2042	}
1264		2043
1265	Coro::cede;	2044	$self->{last_save} = $cf::RUNTIME;
		2045	$self->last_access ($cf::RUNTIME);
1266		2046
1267	$self->in_memory (cf::MAP_IN_MEMORY);	2047	$self->in_memory (cf::MAP_ACTIVE);
		2048	}
		2049
		2050	$self->post_load;
		2051	}
		2052
		2053	sub customise_for {
		2054	my ($self, $ob) = @_;
		2055
		2056	return find "~" . $ob->name . "/" . $self->{path}
		2057	if $self->per_player;
		2058
		2059	# return find "?party/" . $ob->name . "/" . $self->{path}
		2060	# if $self->per_party;
		2061
		2062	$self
		2063	}
		2064
		2065	# find and load all maps in the 3x3 area around a map
		2066	sub load_neighbours {
		2067	my ($map) = @_;
		2068
		2069	my @neigh; # diagonal neighbours
		2070
		2071	for (0 .. 3) {
		2072	my $neigh = $map->tile_path ($_)
		2073	or next;
		2074	$neigh = find $neigh, $map
		2075	or next;
		2076	$neigh->load;
		2077
		2078	push @neigh,
		2079	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2080	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2081	}
		2082
		2083	for (grep defined $_->[0], @neigh) {
		2084	my ($path, $origin) = @$_;
		2085	my $neigh = find $path, $origin
		2086	or next;
		2087	$neigh->load;
		2088	}
1268	}	2089	}
1269		2090
1270	sub find_sync {	2091	sub find_sync {
1271	my ($path, $origin) = @_;	2092	my ($path, $origin) = @_;
1272		2093
1273	cf::sync_job { cf::map::find $path, $origin }	2094	cf::sync_job { find $path, $origin }
1274	}	2095	}
1275		2096
1276	sub do_load_sync {	2097	sub do_load_sync {
1277	my ($map) = @_;	2098	my ($map) = @_;
1278		2099
		2100	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2101	if $Coro::current == $Coro::main;
		2102
1279	cf::sync_job { $map->load };	2103	cf::sync_job { $map->load };
		2104	}
		2105
		2106	our %MAP_PREFETCH;
		2107	our $MAP_PREFETCHER = undef;
		2108
		2109	sub find_async {
		2110	my ($path, $origin, $load) = @_;
		2111
		2112	$path = normalise $path, $origin && $origin->{path};
		2113
		2114	if (my $map = $cf::MAP{$path}) {
		2115	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2116	}
		2117
		2118	$MAP_PREFETCH{$path} |= $load;
		2119
		2120	$MAP_PREFETCHER ||= cf::async {
		2121	$Coro::current->{desc} = "map prefetcher";
		2122
		2123	while (%MAP_PREFETCH) {
		2124	while (my ($k, $v) = each %MAP_PREFETCH) {
		2125	if (my $map = find $k) {
		2126	$map->load if $v;
		2127	}
		2128
		2129	delete $MAP_PREFETCH{$k};
		2130	}
		2131	}
		2132	undef $MAP_PREFETCHER;
		2133	};
		2134	$MAP_PREFETCHER->prio (6);
		2135
		2136	()
1280	}	2137	}
1281		2138
1282	sub save {	2139	sub save {
1283	my ($self) = @_;	2140	my ($self) = @_;
1284		2141
1285	my $lock = cf::lock_acquire "map_data:" . $self->path;	2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
1286		2143
1287	$self->{last_save} = $cf::RUNTIME;	2144	$self->{last_save} = $cf::RUNTIME;
1288		2145
1289	return unless $self->dirty;	2146	return unless $self->dirty;
1290		2147
1291	my $save = $self->{path}->save_path; utf8::encode $save;	2148	my $save = $self->save_path; utf8::encode $save;
1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2149	my $uniq = $self->uniq_path; utf8::encode $uniq;
1293		2150
1294	$self->{load_path} = $save;	2151	$self->{load_path} = $save;
1295		2152
1296	return if $self->{deny_save};	2153	return if $self->{deny_save};
1297		2154
1298	local $self->{last_access} = $self->last_access;#d#	2155	local $self->{last_access} = $self->last_access;#d#
1299		2156
		2157	cf::async {
		2158	$Coro::current->{desc} = "map player save";
		2159	$_->contr->save for $self->players;
		2160	};
		2161
		2162	cf::get_slot 0.02;
		2163
1300	if ($uniq) {	2164	if ($uniq) {
1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2165	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1302	$self->save_objects ($uniq, cf::IO_UNIQUES);	2166	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1303	} else {	2167	} else {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2168	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1305	}	2169	}
1306	}	2170	}
1307		2171
1308	sub swap_out {	2172	sub swap_out {
1309	my ($self) = @_;	2173	my ($self) = @_;
1310		2174
1311	# save first because save cedes	2175	# save first because save cedes
1312	$self->save;	2176	$self->save;
1313		2177
1314	my $lock = cf::lock_acquire "map_data:" . $self->path;	2178	my $lock = cf::lock_acquire "map_data:$self->{path}";
1315		2179
1316	return if $self->players;	2180	return if $self->players;
1317	return if $self->in_memory != cf::MAP_IN_MEMORY;	2181	return if $self->in_memory != cf::MAP_ACTIVE;
1318	return if $self->{deny_save};	2182	return if $self->{deny_save};
1319		2183
		2184	$self->in_memory (cf::MAP_SWAPPED);
		2185
		2186	$self->deactivate;
		2187	$_->clear_links_to ($self) for values %cf::MAP;
1320	$self->clear;	2188	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);
1322	}	2189	}
1323		2190
1324	sub reset_at {	2191	sub reset_at {
1325	my ($self) = @_;	2192	my ($self) = @_;
1326		2193
1327	# TODO: safety, remove and allow resettable per-player maps	2194	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2195	return 1e99 if $self->{deny_reset};
1330		2196
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2197	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2198	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2199
…		…
1338	my ($self) = @_;	2204	my ($self) = @_;
1339		2205
1340	$self->reset_at <= $cf::RUNTIME	2206	$self->reset_at <= $cf::RUNTIME
1341	}	2207	}
1342		2208
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2209	sub reset {
1365	my ($self) = @_;	2210	my ($self) = @_;
1366		2211
1367	my $lock = cf::lock_acquire "map_data:" . $self->path;	2212	my $lock = cf::lock_acquire "map_data:$self->{path}";
1368		2213
1369	return if $self->players;	2214	return if $self->players;
1370	return if $self->{path}{user_rel};#d#
1371		2215
1372	warn "resetting map ", $self->path;#d#	2216	warn "resetting map ", $self->path;
		2217
		2218	$self->in_memory (cf::MAP_SWAPPED);
		2219
		2220	# need to save uniques path
		2221	unless ($self->{deny_save}) {
		2222	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2223
		2224	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2225	if $uniq;
		2226	}
1373		2227
1374	delete $cf::MAP{$self->path};	2228	delete $cf::MAP{$self->path};
1375		2229
		2230	$self->deactivate;
1376	$_->clear_links_to ($self) for values %cf::MAP;	2231	$_->clear_links_to ($self) for values %cf::MAP;
		2232	$self->clear;
1377		2233
1378	$self->unlink_save;	2234	$self->unlink_save;
1379	$self->destroy;	2235	$self->destroy;
1380	}	2236	}
1381		2237
1382	my $nuke_counter = "aaaa";	2238	my $nuke_counter = "aaaa";
1383		2239
1384	sub nuke {	2240	sub nuke {
1385	my ($self) = @_;	2241	my ($self) = @_;
1386		2242
		2243	{
		2244	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2245
		2246	delete $cf::MAP{$self->path};
		2247
		2248	$self->unlink_save;
		2249
		2250	bless $self, "cf::map";
		2251	delete $self->{deny_reset};
1387	$self->{deny_save} = 1;	2252	$self->{deny_save} = 1;
1388	$self->reset_timeout (1);	2253	$self->reset_timeout (1);
1389	$self->rename ("{nuke}/" . ($nuke_counter++));	2254	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2255
		2256	$cf::MAP{$self->path} = $self;
		2257	}
		2258
1390	$self->reset; # polite request, might not happen	2259	$self->reset; # polite request, might not happen
1391	}	2260	}
1392		2261
1393	sub customise_for {	2262	=item $maps = cf::map::tmp_maps
1394	my ($map, $ob) = @_;
1395		2263
1396	if ($map->per_player) {	2264	Returns an arrayref with all map paths of currently instantiated and saved
1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2265	maps. May block.
		2266
		2267	=cut
		2268
		2269	sub tmp_maps() {
1398	}	2270	[
1399		2271	map {
1400	$map	2272	utf8::decode $_;
		2273	/\.map$/
		2274	? normalise $_
		2275	: ()
		2276	} @{ aio_readdir $TMPDIR or [] }
		2277	]
1401	}	2278	}
1402		2279
1403	sub emergency_save {	2280	=item $maps = cf::map::random_maps
1404	my $freeze_guard = cf::freeze_mainloop;
1405		2281
1406	warn "enter emergency map save\n";	2282	Returns an arrayref with all map paths of currently instantiated and saved
		2283	random maps. May block.
1407		2284
1408	cf::sync_job {	2285	=cut
1409	warn "begin emergency map save\n";	2286
1410	$_->save for values %cf::MAP;	2287	sub random_maps() {
		2288	[
		2289	map {
		2290	utf8::decode $_;
		2291	/\.map$/
		2292	? normalise "?random/$_"
		2293	: ()
		2294	} @{ aio_readdir $RANDOMDIR or [] }
		2295	]
		2296	}
		2297
		2298	=item cf::map::unique_maps
		2299
		2300	Returns an arrayref of paths of all shared maps that have
		2301	instantiated unique items. May block.
		2302
		2303	=cut
		2304
		2305	sub unique_maps() {
		2306	[
		2307	map {
		2308	utf8::decode $_;
		2309	s/\.map$//; # TODO future compatibility hack
		2310	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2311	? ()
		2312	: normalise $_
		2313	} @{ aio_readdir $UNIQUEDIR or [] }
		2314	]
		2315	}
		2316
		2317	=back
		2318
		2319	=head3 cf::object
		2320
		2321	=cut
		2322
		2323	package cf::object;
		2324
		2325	=over 4
		2326
		2327	=item $ob->inv_recursive
		2328
		2329	Returns the inventory of the object I<and> their inventories, recursively,
		2330	but I<not> the object itself.
		2331
		2332	=cut
		2333
		2334	sub inv_recursive_;
		2335	sub inv_recursive_ {
		2336	map { $_, inv_recursive_ $_->inv } @_
		2337	}
		2338
		2339	sub inv_recursive {
		2340	inv_recursive_ inv $_[0]
		2341	}
		2342
		2343	=item $ref = $ob->ref
		2344
		2345	Creates and returns a persistent reference to an object that can be stored as a string.
		2346
		2347	=item $ob = cf::object::deref ($refstring)
		2348
		2349	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2350	even if the object actually exists. May block.
		2351
		2352	=cut
		2353
		2354	sub deref {
		2355	my ($ref) = @_;
		2356
		2357	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2358	my ($uuid, $name) = ($1, $2);
		2359	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2360	or return;
		2361	$pl->ob->uuid eq $uuid
		2362	or return;
		2363
		2364	$pl->ob
		2365	} else {
		2366	warn "$ref: cannot resolve object reference\n";
		2367	undef
1411	};	2368	}
1412
1413	warn "end emergency map save\n";
1414	}	2369	}
1415		2370
1416	package cf;	2371	package cf;
1417		2372
1418	=back	2373	=back
1419
1420		2374
1421	=head3 cf::object::player	2375	=head3 cf::object::player
1422		2376
1423	=over 4	2377	=over 4
1424		2378
…		…
1427	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2381	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1428	can be C<undef>. Does the right thing when the player is currently in a	2382	can be C<undef>. Does the right thing when the player is currently in a
1429	dialogue with the given NPC character.	2383	dialogue with the given NPC character.
1430		2384
1431	=cut	2385	=cut
		2386
		2387	our $SAY_CHANNEL = {
		2388	id => "say",
		2389	title => "Map",
		2390	reply => "say ",
		2391	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2392	};
		2393
		2394	our $CHAT_CHANNEL = {
		2395	id => "chat",
		2396	title => "Chat",
		2397	reply => "chat ",
		2398	tooltip => "Player chat and shouts, global to the server.",
		2399	};
1432		2400
1433	# rough implementation of a future "reply" method that works	2401	# rough implementation of a future "reply" method that works
1434	# with dialog boxes.	2402	# with dialog boxes.
1435	#TODO: the first argument must go, split into a $npc->reply_to ( method	2403	#TODO: the first argument must go, split into a $npc->reply_to ( method
1436	sub cf::object::player::reply($$$;$) {	2404	sub cf::object::player::reply($$$;$) {
…		…
1438		2406
1439	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1440		2408
1441	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1442	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1443	} else {	2412	} else {
		2413	my $pl = $self->contr;
		2414
		2415	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2416	my $dialog = $pl->{npc_dialog};
		2417	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2418
		2419	} else {
1444	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1445	$self->message ($msg, $flags);	2421	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2422	}
1446	}	2423	}
		2424	}
		2425
		2426	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2427
		2428	=cut
		2429
		2430	sub cf::object::send_msg {
		2431	my $pl = shift->contr
		2432	or return;
		2433	$pl->send_msg (@_);
1447	}	2434	}
1448		2435
1449	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1450		2437
1451	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1464		2451
1465	=item $player_object->enter_link	2452	=item $player_object->enter_link
1466		2453
1467	Freezes the player and moves him/her to a special map (C<{link}>).	2454	Freezes the player and moves him/her to a special map (C<{link}>).
1468		2455
1469	The player should be reaosnably safe there for short amounts of time. You	2456	The player should be reasonably safe there for short amounts of time (e.g.
1470	I<MUST> call C<leave_link> as soon as possible, though.	2457	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2458	though, as the palyer cannot control the character while it is on the link
		2459	map.
		2460
		2461	Will never block.
1471		2462
1472	=item $player_object->leave_link ($map, $x, $y)	2463	=item $player_object->leave_link ($map, $x, $y)
1473		2464
1474	Moves the player out of the specila link map onto the given map. If the	2465	Moves the player out of the special C<{link}> map onto the specified
1475	map is not valid (or omitted), the player will be moved back to the	2466	map. If the map is not valid (or omitted), the player will be moved back
1476	location he/she was before the call to C<enter_link>, or, if that fails,	2467	to the location he/she was before the call to C<enter_link>, or, if that
1477	to the emergency map position.	2468	fails, to the emergency map position.
1478		2469
1479	Might block.	2470	Might block.
1480		2471
1481	=cut	2472	=cut
		2473
		2474	sub link_map {
		2475	unless ($LINK_MAP) {
		2476	$LINK_MAP = cf::map::find "{link}"
		2477	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2478	$LINK_MAP->load;
		2479	}
		2480
		2481	$LINK_MAP
		2482	}
1482		2483
1483	sub cf::object::player::enter_link {	2484	sub cf::object::player::enter_link {
1484	my ($self) = @_;	2485	my ($self) = @_;
1485		2486
1486	$self->deactivate_recursive;	2487	$self->deactivate_recursive;
1487		2488
1488	return if $self->map == $LINK_MAP;	2489	return if UNIVERSAL::isa $self->map, "ext::map_link";
1489		2490
1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2491	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1491	if $self->map;	2492	if $self->map && $self->map->{path} ne "{link}";
1492		2493
1493	$self->enter_map ($LINK_MAP, 20, 20);	2494	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1494	}	2495	}
1495		2496
1496	sub cf::object::player::leave_link {	2497	sub cf::object::player::leave_link {
1497	my ($self, $map, $x, $y) = @_;	2498	my ($self, $map, $x, $y) = @_;
		2499
		2500	return unless $self->contr->active;
1498		2501
1499	my $link_pos = delete $self->{_link_pos};	2502	my $link_pos = delete $self->{_link_pos};
1500		2503
1501	unless ($map) {	2504	unless ($map) {
1502	# restore original map position	2505	# restore original map position
…		…
1516	# use -1 or undef as default coordinates, not 0, 0	2519	# use -1 or undef as default coordinates, not 0, 0
1517	($x, $y) = ($map->enter_x, $map->enter_y)	2520	($x, $y) = ($map->enter_x, $map->enter_y)
1518	if $x <=0 && $y <= 0;	2521	if $x <=0 && $y <= 0;
1519		2522
1520	$map->load;	2523	$map->load;
		2524	$map->load_neighbours;
1521		2525
		2526	return unless $self->contr->active;
		2527	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1522	$self->activate_recursive;	2528	$self->activate_recursive;
		2529
		2530	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1523	$self->enter_map ($map, $x, $y);	2531	$self->enter_map ($map, $x, $y);
1524	}	2532	}
1525		2533
1526	cf::player->attach (	2534	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1527	on_logout => sub {
1528	my ($pl) = @_;
1529		2535
1530	# abort map switching before logout	2536	Moves the player to the given map-path and coordinates by first freezing
1531	if ($pl->ob->{_link_pos}) {	2537	her, loading and preparing them map, calling the provided $check callback
1532	cf::sync_job {	2538	that has to return the map if sucecssful, and then unfreezes the player on
1533	$pl->ob->leave_link	2539	the new (success) or old (failed) map position. In either case, $done will
1534	};	2540	be called at the end of this process.
1535	}
1536	},
1537	on_login => sub {
1538	my ($pl) = @_;
1539		2541
1540	# try to abort aborted map switching on player login :)	2542	Note that $check will be called with a potentially non-loaded map, so if
1541	# should happen only on crashes	2543	it needs a loaded map it has to call C<< ->load >>.
1542	if ($pl->ob->{_link_pos}) {
1543	$pl->ob->enter_link;
1544	Coro::async_pool {
1545	# we need this sleep as the login has a concurrent enter_exit running
1546	# and this sleep increases chances of the player not ending up in scorn
1547	Coro::Timer::sleep 1;
1548	$pl->ob->leave_link;
1549	};
1550	}
1551	},
1552	);
1553		2544
1554	=item $player_object->goto ($path, $x, $y)
1555
1556	=cut	2545	=cut
		2546
		2547	our $GOTOGEN;
1557		2548
1558	sub cf::object::player::goto {	2549	sub cf::object::player::goto {
1559	my ($self, $path, $x, $y) = @_;	2550	my ($self, $path, $x, $y, $check, $done) = @_;
		2551
		2552	# do generation counting so two concurrent goto's will be executed in-order
		2553	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1560		2554
1561	$self->enter_link;	2555	$self->enter_link;
1562		2556
1563	(Coro::async_pool {	2557	(async {
1564	$path = new cf::path $path;	2558	$Coro::current->{desc} = "player::goto $path $x $y";
1565		2559
1566	my $map = cf::map::find $path->as_string;	2560	# *tag paths override both path and x|y
		2561	if ($path =~ /^\*(.*)$/) {
		2562	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2563	my $ob = $obs[rand @obs];
		2564
		2565	# see if we actually can go there
		2566	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2567	$ob = $obs[rand @obs];
		2568	} else {
		2569	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2570	}
		2571	# else put us there anyways for now #d#
		2572
		2573	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2574	} else {
		2575	($path, $x, $y) = (undef, undef, undef);
		2576	}
		2577	}
		2578
		2579	my $map = eval {
		2580	my $map = defined $path ? cf::map::find $path : undef;
		2581
		2582	if ($map) {
1567	$map = $map->customise_for ($self) if $map;	2583	$map = $map->customise_for ($self);
1568		2584	$map = $check->($map) if $check && $map;
1569	# warn "entering ", $map->path, " at ($x, $y)\n"	2585	} else {
1570	# if $map;
1571
1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2586	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2587	}
1573		2588
		2589	$map
		2590	};
		2591
		2592	if ($@) {
		2593	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2594	LOG llevError | logBacktrace, Carp::longmess $@;
		2595	}
		2596
		2597	if ($gen == $self->{_goto_generation}) {
		2598	delete $self->{_goto_generation};
1574	$self->leave_link ($map, $x, $y);	2599	$self->leave_link ($map, $x, $y);
		2600	}
		2601
		2602	$done->() if $done;
1575	})->prio (1);	2603	})->prio (1);
1576	}	2604	}
1577		2605
1578	=item $player_object->enter_exit ($exit_object)	2606	=item $player_object->enter_exit ($exit_object)
1579		2607
…		…
1581		2609
1582	sub parse_random_map_params {	2610	sub parse_random_map_params {
1583	my ($spec) = @_;	2611	my ($spec) = @_;
1584		2612
1585	my $rmp = { # defaults	2613	my $rmp = { # defaults
1586	xsize => 10,	2614	xsize => (cf::rndm 15, 40),
1587	ysize => 10,	2615	ysize => (cf::rndm 15, 40),
		2616	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2617	#layout => string,
1588	};	2618	};
1589		2619
1590	for (split /\n/, $spec) {	2620	for (split /\n/, $spec) {
1591	my ($k, $v) = split /\s+/, $_, 2;	2621	my ($k, $v) = split /\s+/, $_, 2;
1592		2622
…		…
1604	# that depends on the exit object	2634	# that depends on the exit object
1605		2635
1606	my $rmp = parse_random_map_params $exit->msg;	2636	my $rmp = parse_random_map_params $exit->msg;
1607		2637
1608	if ($exit->map) {	2638	if ($exit->map) {
1609	$rmp->{region} = $exit->map->region_name;	2639	$rmp->{region} = $exit->region->name;
1610	$rmp->{origin_map} = $exit->map->path;	2640	$rmp->{origin_map} = $exit->map->path;
1611	$rmp->{origin_x} = $exit->x;	2641	$rmp->{origin_x} = $exit->x;
1612	$rmp->{origin_y} = $exit->y;	2642	$rmp->{origin_y} = $exit->y;
		2643
		2644	$exit->map->touch;
1613	}	2645	}
1614		2646
1615	$rmp->{random_seed} ||= $exit->random_seed;	2647	$rmp->{random_seed} ||= $exit->random_seed;
1616		2648
1617	my $data = cf::to_json $rmp;	2649	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1618	my $md5 = Digest::MD5::md5_hex $data;	2650	my $md5 = Digest::MD5::md5_hex $data;
		2651	my $meta = "$RANDOMDIR/$md5.meta";
1619		2652
1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2653	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1621	aio_write $fh, 0, (length $data), $data, 0;	2654	aio_write $fh, 0, (length $data), $data, 0;
		2655	undef $fh;
		2656	aio_rename "$meta~", $meta;
1622		2657
		2658	my $slaying = "?random/$md5";
		2659
		2660	if ($exit->valid) {
1623	$exit->slaying ("?random/$md5");	2661	$exit->slaying ("?random/$md5");
1624	$exit->msg (undef);	2662	$exit->msg (undef);
		2663	}
1625	}	2664	}
1626	}	2665	}
1627		2666
1628	sub cf::object::player::enter_exit {	2667	sub cf::object::player::enter_exit {
1629	my ($self, $exit) = @_;	2668	my ($self, $exit) = @_;
1630		2669
1631	return unless $self->type == cf::PLAYER;	2670	return unless $self->type == cf::PLAYER;
1632		2671
1633	$self->enter_link;	2672	$self->enter_link;
1634		2673
1635	(Coro::async_pool {	2674	(async {
1636	$self->deactivate_recursive; # just to be sure	2675	$Coro::current->{desc} = "enter_exit";
		2676
1637	unless (eval {	2677	unless (eval {
		2678	$self->deactivate_recursive; # just to be sure
		2679
		2680	# random map handling
		2681	{
		2682	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2683
1638	prepare_random_map $exit	2684	prepare_random_map $exit
1639	if $exit->slaying eq "/!";	2685	if $exit->slaying eq "/!";
		2686	}
1640		2687
1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2688	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2689	my $x = $exit->stats->hp;
		2690	my $y = $exit->stats->sp;
1643		2691
		2692	$self->goto ($map, $x, $y);
		2693
		2694	# if exit is damned, update players death & WoR home-position
		2695	$self->contr->savebed ($map, $x, $y)
		2696	if $exit->flag (cf::FLAG_DAMNED);
		2697
1644	1;	2698	1
1645	}) {	2699	}) {
1646	$self->message ("Something went wrong deep within the crossfire server. "	2700	$self->message ("Something went wrong deep within the deliantra server. "
1647	. "I'll try to bring you back to the map you were before. "	2701	. "I'll try to bring you back to the map you were before. "
1648	. "Please report this to the dungeon master",	2702	. "Please report this to the dungeon master!",
1649	cf::NDI_UNIQUE | cf::NDI_RED);	2703	cf::NDI_UNIQUE | cf::NDI_RED);
1650		2704
1651	warn "ERROR in enter_exit: $@";	2705	warn "ERROR in enter_exit: $@";
1652	$self->leave_link;	2706	$self->leave_link;
1653	}	2707	}
1654	})->prio (1);	2708	})->prio (1);
…		…
1667		2721
1668	sub cf::client::send_drawinfo {	2722	sub cf::client::send_drawinfo {
1669	my ($self, $text, $flags) = @_;	2723	my ($self, $text, $flags) = @_;
1670		2724
1671	utf8::encode $text;	2725	utf8::encode $text;
1672	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2726	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1673	}	2727	}
1674		2728
		2729	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2730
		2731	Send a drawinfo or msg packet to the client, formatting the msg for the
		2732	client if neccessary. C<$type> should be a string identifying the type of
		2733	the message, with C<log> being the default. If C<$color> is negative, suppress
		2734	the message unless the client supports the msg packet.
		2735
		2736	=cut
		2737
		2738	# non-persistent channels (usually the info channel)
		2739	our %CHANNEL = (
		2740	"c/identify" => {
		2741	id => "infobox",
		2742	title => "Identify",
		2743	reply => undef,
		2744	tooltip => "Items recently identified",
		2745	},
		2746	"c/examine" => {
		2747	id => "infobox",
		2748	title => "Examine",
		2749	reply => undef,
		2750	tooltip => "Signs and other items you examined",
		2751	},
		2752	"c/book" => {
		2753	id => "infobox",
		2754	title => "Book",
		2755	reply => undef,
		2756	tooltip => "The contents of a note or book",
		2757	},
		2758	"c/lookat" => {
		2759	id => "infobox",
		2760	title => "Look",
		2761	reply => undef,
		2762	tooltip => "What you saw there",
		2763	},
		2764	"c/who" => {
		2765	id => "infobox",
		2766	title => "Players",
		2767	reply => undef,
		2768	tooltip => "Shows players who are currently online",
		2769	},
		2770	"c/body" => {
		2771	id => "infobox",
		2772	title => "Body Parts",
		2773	reply => undef,
		2774	tooltip => "Shows which body parts you posess and are available",
		2775	},
		2776	"c/statistics" => {
		2777	id => "infobox",
		2778	title => "Statistics",
		2779	reply => undef,
		2780	tooltip => "Shows your primary statistics",
		2781	},
		2782	"c/skills" => {
		2783	id => "infobox",
		2784	title => "Skills",
		2785	reply => undef,
		2786	tooltip => "Shows your experience per skill and item power",
		2787	},
		2788	"c/resistances" => {
		2789	id => "infobox",
		2790	title => "Resistances",
		2791	reply => undef,
		2792	tooltip => "Shows your resistances",
		2793	},
		2794	"c/pets" => {
		2795	id => "infobox",
		2796	title => "Pets",
		2797	reply => undef,
		2798	tooltip => "Shows information abotu your pets/a specific pet",
		2799	},
		2800	"c/uptime" => {
		2801	id => "infobox",
		2802	title => "Uptime",
		2803	reply => undef,
		2804	tooltip => "How long the server has been running since last restart",
		2805	},
		2806	"c/mapinfo" => {
		2807	id => "infobox",
		2808	title => "Map Info",
		2809	reply => undef,
		2810	tooltip => "Information related to the maps",
		2811	},
		2812	"c/party" => {
		2813	id => "party",
		2814	title => "Party",
		2815	reply => "gsay ",
		2816	tooltip => "Messages and chat related to your party",
		2817	},
		2818	"c/death" => {
		2819	id => "death",
		2820	title => "Death",
		2821	reply => undef,
		2822	tooltip => "Reason for and more info about your most recent death",
		2823	},
		2824	"c/say" => $SAY_CHANNEL,
		2825	"c/chat" => $CHAT_CHANNEL,
		2826	);
		2827
		2828	sub cf::client::send_msg {
		2829	my ($self, $channel, $msg, $color, @extra) = @_;
		2830
		2831	$msg = $self->pl->expand_cfpod ($msg)
		2832	unless $color & cf::NDI_VERBATIM;
		2833
		2834	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2835
		2836	# check predefined channels, for the benefit of C
		2837	if ($CHANNEL{$channel}) {
		2838	$channel = $CHANNEL{$channel};
		2839
		2840	$self->ext_msg (channel_info => $channel);
		2841	$channel = $channel->{id};
		2842
		2843	} elsif (ref $channel) {
		2844	# send meta info to client, if not yet sent
		2845	unless (exists $self->{channel}{$channel->{id}}) {
		2846	$self->{channel}{$channel->{id}} = $channel;
		2847	$self->ext_msg (channel_info => $channel);
		2848	}
		2849
		2850	$channel = $channel->{id};
		2851	}
		2852
		2853	return unless @extra || length $msg;
		2854
		2855	# default colour, mask it out
		2856	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2857	if $color & cf::NDI_DEF;
		2858
		2859	my $pkt = "msg "
		2860	. $self->{json_coder}->encode (
		2861	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2862	);
		2863
		2864	# try lzf for large packets
		2865	$pkt = "lzf " . Compress::LZF::compress $pkt
		2866	if 1024 <= length $pkt and $self->{can_lzf};
		2867
		2868	# split very large packets
		2869	if (8192 < length $pkt and $self->{can_lzf}) {
		2870	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2871	$pkt = "frag";
		2872	}
		2873
		2874	$self->send_packet ($pkt);
		2875	}
		2876
		2877	=item $client->ext_msg ($type, @msg)
		2878
		2879	Sends an ext event to the client.
		2880
		2881	=cut
		2882
		2883	sub cf::client::ext_msg($$@) {
		2884	my ($self, $type, @msg) = @_;
		2885
		2886	if ($self->extcmd == 2) {
		2887	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2888	} elsif ($self->extcmd == 1) { # TODO: remove
		2889	push @msg, msgtype => "event_$type";
		2890	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2891	}
		2892	}
		2893
		2894	=item $client->ext_reply ($msgid, @msg)
		2895
		2896	Sends an ext reply to the client.
		2897
		2898	=cut
		2899
		2900	sub cf::client::ext_reply($$@) {
		2901	my ($self, $id, @msg) = @_;
		2902
		2903	if ($self->extcmd == 2) {
		2904	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2905	} elsif ($self->extcmd == 1) {
		2906	#TODO: version 1, remove
		2907	unshift @msg, msgtype => "reply", msgid => $id;
		2908	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2909	}
		2910	}
1675		2911
1676	=item $success = $client->query ($flags, "text", \&cb)	2912	=item $success = $client->query ($flags, "text", \&cb)
1677		2913
1678	Queues a query to the client, calling the given callback with	2914	Queues a query to the client, calling the given callback with
1679	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2915	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1680	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2916	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1681		2917
1682	Queries can fail, so check the return code. Or don't, as queries will become	2918	Queries can fail, so check the return code. Or don't, as queries will
1683	reliable at some point in the future.	2919	become reliable at some point in the future.
1684		2920
1685	=cut	2921	=cut
1686		2922
1687	sub cf::client::query {	2923	sub cf::client::query {
1688	my ($self, $flags, $text, $cb) = @_;	2924	my ($self, $flags, $text, $cb) = @_;
…		…
1696	utf8::encode $text;	2932	utf8::encode $text;
1697	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2933	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1698		2934
1699	$self->send_packet ($self->{query_queue}[0][0])	2935	$self->send_packet ($self->{query_queue}[0][0])
1700	if @{ $self->{query_queue} } == 1;	2936	if @{ $self->{query_queue} } == 1;
		2937
		2938	1
1701	}	2939	}
1702		2940
1703	cf::client->attach (	2941	cf::client->attach (
		2942	on_connect => sub {
		2943	my ($ns) = @_;
		2944
		2945	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2946	},
1704	on_reply => sub {	2947	on_reply => sub {
1705	my ($ns, $msg) = @_;	2948	my ($ns, $msg) = @_;
1706		2949
1707	# this weird shuffling is so that direct followup queries	2950	# this weird shuffling is so that direct followup queries
1708	# get handled first	2951	# get handled first
1709	my $queue = delete $ns->{query_queue}	2952	my $queue = delete $ns->{query_queue}
1710	or return; # be conservative, not sure how that can happen, but we saw a crash here	2953	or return; # be conservative, not sure how that can happen, but we saw a crash here
1711		2954
1712	(shift @$queue)->[1]->($msg);	2955	(shift @$queue)->[1]->($msg);
		2956	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1713		2957
1714	push @{ $ns->{query_queue} }, @$queue;	2958	push @{ $ns->{query_queue} }, @$queue;
1715		2959
1716	if (@{ $ns->{query_queue} } == @$queue) {	2960	if (@{ $ns->{query_queue} } == @$queue) {
1717	if (@$queue) {	2961	if (@$queue) {
…		…
1719	} else {	2963	} else {
1720	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2964	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1721	}	2965	}
1722	}	2966	}
1723	},	2967	},
		2968	on_exticmd => sub {
		2969	my ($ns, $buf) = @_;
		2970
		2971	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2972
		2973	if (ref $msg) {
		2974	my ($type, $reply, @payload) =
		2975	"ARRAY" eq ref $msg
		2976	? @$msg
		2977	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2978
		2979	my @reply;
		2980
		2981	if (my $cb = $EXTICMD{$type}) {
		2982	@reply = $cb->($ns, @payload);
		2983	}
		2984
		2985	$ns->ext_reply ($reply, @reply)
		2986	if $reply;
		2987
		2988	} else {
		2989	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2990	}
		2991
		2992	cf::override;
		2993	},
1724	);	2994	);
1725		2995
1726	=item $client->coro (\&cb)	2996	=item $client->async (\&cb)
1727		2997
1728	Create a new coroutine, running the specified callback. The coroutine will	2998	Create a new coroutine, running the specified callback. The coroutine will
1729	be automatically cancelled when the client gets destroyed (e.g. on logout,	2999	be automatically cancelled when the client gets destroyed (e.g. on logout,
1730	or loss of connection).	3000	or loss of connection).
1731		3001
1732	=cut	3002	=cut
1733		3003
1734	sub cf::client::coro {	3004	sub cf::client::async {
1735	my ($self, $cb) = @_;	3005	my ($self, $cb) = @_;
1736		3006
1737	my $coro = &Coro::async_pool ($cb);	3007	my $coro = &Coro::async ($cb);
1738		3008
1739	$coro->on_destroy (sub {	3009	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	3010	delete $self->{_coro}{$coro+0};
1741	});	3011	});
1742		3012
…		…
1769	our $safe = new Safe "safe";	3039	our $safe = new Safe "safe";
1770	our $safe_hole = new Safe::Hole;	3040	our $safe_hole = new Safe::Hole;
1771		3041
1772	$SIG{FPE} = 'IGNORE';	3042	$SIG{FPE} = 'IGNORE';
1773		3043
1774	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3044	$safe->permit_only (Opcode::opset qw(
		3045	:base_core :base_mem :base_orig :base_math
		3046	grepstart grepwhile mapstart mapwhile
		3047	sort time
		3048	));
1775		3049
1776	# here we export the classes and methods available to script code	3050	# here we export the classes and methods available to script code
1777		3051
1778	=pod	3052	=pod
1779		3053
1780	The following fucntions and emthods are available within a safe environment:	3054	The following functions and methods are available within a safe environment:
1781		3055
1782	cf::object contr pay_amount pay_player map	3056	cf::object
		3057	contr pay_amount pay_player map x y force_find force_add destroy
		3058	insert remove name archname title slaying race decrease split
		3059	value
		3060
1783	cf::object::player player	3061	cf::object::player
1784	cf::player peaceful	3062	player
1785	cf::map trigger	3063
		3064	cf::player
		3065	peaceful
		3066
		3067	cf::map
		3068	trigger
1786		3069
1787	=cut	3070	=cut
1788		3071
1789	for (	3072	for (
1790	["cf::object" => qw(contr pay_amount pay_player map)],	3073	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3074	insert remove inv nrof name archname title slaying race
		3075	decrease split destroy change_exp value msg lore send_msg)],
1791	["cf::object::player" => qw(player)],	3076	["cf::object::player" => qw(player)],
1792	["cf::player" => qw(peaceful)],	3077	["cf::player" => qw(peaceful send_msg)],
1793	["cf::map" => qw(trigger)],	3078	["cf::map" => qw(trigger)],
1794	) {	3079	) {
1795	no strict 'refs';	3080	no strict 'refs';
1796	my ($pkg, @funs) = @$_;	3081	my ($pkg, @funs) = @$_;
1797	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3082	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1814	my ($code, %vars) = @_;	3099	my ($code, %vars) = @_;
1815		3100
1816	my $qcode = $code;	3101	my $qcode = $code;
1817	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3102	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1818	$qcode =~ s/\n/\\n/g;	3103	$qcode =~ s/\n/\\n/g;
		3104
		3105	%vars = (_dummy => 0) unless %vars;
1819		3106
1820	local $_;	3107	local $_;
1821	local @safe::cf::_safe_eval_args = values %vars;	3108	local @safe::cf::_safe_eval_args = values %vars;
1822		3109
1823	my $eval =	3110	my $eval =
…		…
1866	=back	3153	=back
1867		3154
1868	=cut	3155	=cut
1869		3156
1870	#############################################################################	3157	#############################################################################
		3158	# the server's init and main functions
1871		3159
1872	=head2 EXTENSION DATABASE SUPPORT	3160	sub load_facedata($) {
		3161	my ($path) = @_;
1873		3162
1874	Crossfire maintains a very simple database for extension use. It can	3163	# HACK to clear player env face cache, we need some signal framework
1875	currently store anything that can be serialised using Storable, which	3164	# for this (global event?)
1876	excludes objects.	3165	%ext::player_env::MUSIC_FACE_CACHE = ();
1877		3166
1878	The parameter C<$family> should best start with the name of the extension	3167	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1879	using it, it should be unique.
1880		3168
1881	=over 4	3169	warn "loading facedata from $path\n";
1882		3170
1883	=item $hashref = cf::db_get $family	3171	my $facedata;
		3172	0 < aio_load $path, $facedata
		3173	or die "$path: $!";
1884		3174
1885	Return a hashref for use by the extension C<$family>, which can be	3175	$facedata = Coro::Storable::thaw $facedata;
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888		3176
1889	=item $value = cf::db_get $family => $key	3177	$facedata->{version} == 2
		3178	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		3179
1891	Returns a single value from the database	3180	# patch in the exptable
1892		3181	$facedata->{resource}{"res/exp_table"} = {
1893	=item cf::db_put $family => $hashref	3182	type => FT_RSRC,
1894		3183	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	$DB = stat $path ? Storable::retrieve $path : { };
1920	}
1921
1922	my $pid;
1923
1924	sub db_save() {
1925	waitpid $pid, 0 if $pid;
1926	if (0 == ($pid = fork)) {
1927	$DB->{_meta}{version} = 1;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});	3184	};
		3185	cf::cede_to_tick;
1944		3186
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}	3187	{
		3188	my $faces = $facedata->{faceinfo};
1949		3189
1950	sub db_get($;$) {	3190	while (my ($face, $info) = each %$faces) {
1951	@_ >= 2	3191	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1952	? $DB->{$_[0]}{$_[1]}
1953	: ($DB->{$_[0]} ||= { })
1954	}
1955		3192
1956	sub db_put($$;$) {	3193	cf::face::set_visibility $idx, $info->{visibility};
1957	if (@_ >= 3) {	3194	cf::face::set_magicmap $idx, $info->{magicmap};
1958	$DB->{$_[0]}{$_[1]} = $_[2];	3195	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1959	} else {	3196	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964		3197
1965	cf::global->attach (	3198	cf::cede_to_tick;
1966	prio => 10000,
1967	on_cleanup => sub {
1968	db_sync;
1969	},	3199	}
1970	);
1971	}
1972		3200
1973	#############################################################################	3201	while (my ($face, $info) = each %$faces) {
1974	# the server's main()	3202	next unless $info->{smooth};
1975		3203
1976	sub cfg_load {	3204	my $idx = cf::face::find $face
		3205	or next;
		3206
		3207	if (my $smooth = cf::face::find $info->{smooth}) {
		3208	cf::face::set_smooth $idx, $smooth;
		3209	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3210	} else {
		3211	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3212	}
		3213
		3214	cf::cede_to_tick;
		3215	}
		3216	}
		3217
		3218	{
		3219	my $anims = $facedata->{animinfo};
		3220
		3221	while (my ($anim, $info) = each %$anims) {
		3222	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3223	cf::cede_to_tick;
		3224	}
		3225
		3226	cf::anim::invalidate_all; # d'oh
		3227	}
		3228
		3229	{
		3230	# TODO: for gcfclient pleasure, we should give resources
		3231	# that gcfclient doesn't grok a >10000 face index.
		3232	my $res = $facedata->{resource};
		3233
		3234	while (my ($name, $info) = each %$res) {
		3235	if (defined $info->{type}) {
		3236	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3237	my $data;
		3238
		3239	if ($info->{type} & 1) {
		3240	# prepend meta info
		3241
		3242	my $meta = $enc->encode ({
		3243	name => $name,
		3244	%{ $info->{meta} || {} },
		3245	});
		3246
		3247	$data = pack "(w/a*)*", $meta, $info->{data};
		3248	} else {
		3249	$data = $info->{data};
		3250	}
		3251
		3252	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3253	cf::face::set_type $idx, $info->{type};
		3254	} else {
		3255	$RESOURCE{$name} = $info;
		3256	}
		3257
		3258	cf::cede_to_tick;
		3259	}
		3260	}
		3261
		3262	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3263
		3264	1
		3265	}
		3266
		3267	cf::global->attach (on_resource_update => sub {
		3268	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3269	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3270
		3271	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3272	my $sound = $soundconf->{compat}[$_]
		3273	or next;
		3274
		3275	my $face = cf::face::find "sound/$sound->[1]";
		3276	cf::sound::set $sound->[0] => $face;
		3277	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3278	}
		3279
		3280	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3281	my $face = cf::face::find "sound/$v";
		3282	cf::sound::set $k => $face;
		3283	}
		3284	}
		3285	});
		3286
		3287	register_exticmd fx_want => sub {
		3288	my ($ns, $want) = @_;
		3289
		3290	while (my ($k, $v) = each %$want) {
		3291	$ns->fx_want ($k, $v);
		3292	}
		3293	};
		3294
		3295	sub load_resource_file($) {
		3296	my $guard = lock_acquire "load_resource_file";
		3297
		3298	my $status = load_resource_file_ $_[0];
		3299	get_slot 0.1, 100;
		3300	cf::arch::commit_load;
		3301
		3302	$status
		3303	}
		3304
		3305	sub reload_regions {
		3306	# HACK to clear player env face cache, we need some signal framework
		3307	# for this (global event?)
		3308	%ext::player_env::MUSIC_FACE_CACHE = ();
		3309
		3310	load_resource_file "$MAPDIR/regions"
		3311	or die "unable to load regions file\n";
		3312
		3313	for (cf::region::list) {
		3314	$_->{match} = qr/$_->{match}/
		3315	if exists $_->{match};
		3316	}
		3317	}
		3318
		3319	sub reload_facedata {
		3320	load_facedata "$DATADIR/facedata"
		3321	or die "unable to load facedata\n";
		3322	}
		3323
		3324	sub reload_archetypes {
		3325	load_resource_file "$DATADIR/archetypes"
		3326	or die "unable to load archetypes\n";
		3327	}
		3328
		3329	sub reload_treasures {
		3330	load_resource_file "$DATADIR/treasures"
		3331	or die "unable to load treasurelists\n";
		3332	}
		3333
		3334	sub reload_resources {
		3335	warn "reloading resource files...\n";
		3336
		3337	reload_facedata;
		3338	reload_archetypes;
		3339	reload_regions;
		3340	reload_treasures;
		3341
		3342	warn "finished reloading resource files\n";
		3343	}
		3344
		3345	sub reload_config {
1977	open my $fh, "<:utf8", cf::confdir . "/config"	3346	open my $fh, "<:utf8", "$CONFDIR/config"
1978	or return;	3347	or return;
1979		3348
1980	local $/;	3349	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	3350	*CFG = YAML::Load <$fh>;
1982		3351
1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3352	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3353
		3354	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3355	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1984		3356
1985	if (exists $CFG{mlockall}) {	3357	if (exists $CFG{mlockall}) {
1986	eval {	3358	eval {
1987	$CFG{mlockall} ? &mlockall : &munlockall	3359	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1988	and die "WARNING: m(un)lockall failed: $!\n";	3360	and die "WARNING: m(un)lockall failed: $!\n";
1989	};	3361	};
1990	warn $@ if $@;	3362	warn $@ if $@;
1991	}	3363	}
1992	}	3364	}
1993		3365
		3366	sub pidfile() {
		3367	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3368	or die "$PIDFILE: $!";
		3369	flock $fh, &Fcntl::LOCK_EX
		3370	or die "$PIDFILE: flock: $!";
		3371	$fh
		3372	}
		3373
		3374	# make sure only one server instance is running at any one time
		3375	sub atomic {
		3376	my $fh = pidfile;
		3377
		3378	my $pid = <$fh>;
		3379	kill 9, $pid if $pid > 0;
		3380
		3381	seek $fh, 0, 0;
		3382	print $fh $$;
		3383	}
		3384
1994	sub main {	3385	sub main {
		3386	cf::init_globals; # initialise logging
		3387
		3388	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3389	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3390	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3391	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3392
		3393	cf::init_experience;
		3394	cf::init_anim;
		3395	cf::init_attackmess;
		3396	cf::init_dynamic;
		3397
		3398	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3399
1995	# we must not ever block the main coroutine	3400	# we must not ever block the main coroutine
1996	local $Coro::idle = sub {	3401	local $Coro::idle = sub {
1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3402	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1998	(Coro::unblock_sub {	3403	(async {
1999	Event::one_event;	3404	$Coro::current->{desc} = "IDLE BUG HANDLER";
2000	})->();	3405	EV::loop EV::LOOP_ONESHOT;
		3406	})->prio (Coro::PRIO_MAX);
2001	};	3407	};
2002		3408
2003	cfg_load;	3409	evthread_start IO::AIO::poll_fileno;
2004	db_load;	3410
		3411	cf::sync_job {
		3412	reload_resources;
		3413	reload_config;
		3414	db_init;
		3415
		3416	cf::load_settings;
		3417	cf::load_materials;
		3418	cf::init_uuid;
		3419	cf::init_signals;
		3420	cf::init_commands;
		3421	cf::init_skills;
		3422
		3423	cf::init_beforeplay;
		3424
		3425	atomic;
		3426
2005	load_extensions;	3427	load_extensions;
		3428
		3429	utime time, time, $RUNTIMEFILE;
		3430
		3431	# no (long-running) fork's whatsoever before this point(!)
		3432	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3433
		3434	(pop @POST_INIT)->(0) while @POST_INIT;
		3435	};
		3436
2006	Event::loop;	3437	EV::loop;
2007	}	3438	}
2008		3439
2009	#############################################################################	3440	#############################################################################
2010	# initialisation	3441	# initialisation and cleanup
2011		3442
		3443	# install some emergency cleanup handlers
		3444	BEGIN {
		3445	our %SIGWATCHER = ();
		3446	for my $signal (qw(INT HUP TERM)) {
		3447	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3448	cf::cleanup "SIG$signal";
		3449	};
		3450	}
		3451	}
		3452
		3453	sub write_runtime_sync {
		3454	# first touch the runtime file to show we are still running:
		3455	# the fsync below can take a very very long time.
		3456
		3457	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3458
		3459	my $guard = cf::lock_acquire "write_runtime";
		3460
		3461	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3462	or return;
		3463
		3464	my $value = $cf::RUNTIME + 90 + 10;
		3465	# 10 is the runtime save interval, for a monotonic clock
		3466	# 60 allows for the watchdog to kill the server.
		3467
		3468	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3469	and return;
		3470
		3471	# always fsync - this file is important
		3472	aio_fsync $fh
		3473	and return;
		3474
		3475	# touch it again to show we are up-to-date
		3476	aio_utime $fh, undef, undef;
		3477
		3478	close $fh
		3479	or return;
		3480
		3481	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3482	and return;
		3483
		3484	warn "runtime file written.\n";
		3485
		3486	1
		3487	}
		3488
		3489	our $uuid_lock;
		3490	our $uuid_skip;
		3491
		3492	sub write_uuid_sync($) {
		3493	$uuid_skip ||= $_[0];
		3494
		3495	return if $uuid_lock;
		3496	local $uuid_lock = 1;
		3497
		3498	my $uuid = "$LOCALDIR/uuid";
		3499
		3500	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3501	or return;
		3502
		3503	my $value = uuid_seq uuid_cur;
		3504
		3505	unless ($value) {
		3506	warn "cowardly refusing to write zero uuid value!\n";
		3507	return;
		3508	}
		3509
		3510	my $value = uuid_str $value + $uuid_skip;
		3511	$uuid_skip = 0;
		3512
		3513	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3514	and return;
		3515
		3516	# always fsync - this file is important
		3517	aio_fsync $fh
		3518	and return;
		3519
		3520	close $fh
		3521	or return;
		3522
		3523	aio_rename "$uuid~", $uuid
		3524	and return;
		3525
		3526	warn "uuid file written ($value).\n";
		3527
		3528	1
		3529
		3530	}
		3531
		3532	sub write_uuid($$) {
		3533	my ($skip, $sync) = @_;
		3534
		3535	$sync ? write_uuid_sync $skip
		3536	: async { write_uuid_sync $skip };
		3537	}
		3538
		3539	sub emergency_save() {
		3540	my $freeze_guard = cf::freeze_mainloop;
		3541
		3542	warn "emergency_perl_save: enter\n";
		3543
		3544	cf::sync_job {
		3545	# this is a trade-off: we want to be very quick here, so
		3546	# save all maps without fsync, and later call a global sync
		3547	# (which in turn might be very very slow)
		3548	local $USE_FSYNC = 0;
		3549
		3550	# use a peculiar iteration method to avoid tripping on perl
		3551	# refcount bugs in for. also avoids problems with players
		3552	# and maps saved/destroyed asynchronously.
		3553	warn "emergency_perl_save: begin player save\n";
		3554	for my $login (keys %cf::PLAYER) {
		3555	my $pl = $cf::PLAYER{$login} or next;
		3556	$pl->valid or next;
		3557	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3558	$pl->save;
		3559	}
		3560	warn "emergency_perl_save: end player save\n";
		3561
		3562	warn "emergency_perl_save: begin map save\n";
		3563	for my $path (keys %cf::MAP) {
		3564	my $map = $cf::MAP{$path} or next;
		3565	$map->valid or next;
		3566	$map->save;
		3567	}
		3568	warn "emergency_perl_save: end map save\n";
		3569
		3570	warn "emergency_perl_save: begin database checkpoint\n";
		3571	BDB::db_env_txn_checkpoint $DB_ENV;
		3572	warn "emergency_perl_save: end database checkpoint\n";
		3573
		3574	warn "emergency_perl_save: begin write uuid\n";
		3575	write_uuid_sync 1;
		3576	warn "emergency_perl_save: end write uuid\n";
		3577	};
		3578
		3579	warn "emergency_perl_save: starting sync()\n";
		3580	IO::AIO::aio_sync sub {
		3581	warn "emergency_perl_save: finished sync()\n";
		3582	};
		3583
		3584	warn "emergency_perl_save: leave\n";
		3585	}
		3586
		3587	sub post_cleanup {
		3588	my ($make_core) = @_;
		3589
		3590	warn Carp::longmess "post_cleanup backtrace"
		3591	if $make_core;
		3592
		3593	my $fh = pidfile;
		3594	unlink $PIDFILE if <$fh> == $$;
		3595	}
		3596
		3597	# a safer delete_package, copied from Symbol
		3598	sub clear_package($) {
		3599	my $pkg = shift;
		3600
		3601	# expand to full symbol table name if needed
		3602	unless ($pkg =~ /^main::.*::$/) {
		3603	$pkg = "main$pkg" if $pkg =~ /^::/;
		3604	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3605	$pkg .= '::' unless $pkg =~ /::$/;
		3606	}
		3607
		3608	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3609	my $stem_symtab = *{$stem}{HASH};
		3610
		3611	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3612	or return;
		3613
		3614	# clear all symbols
		3615	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3616	for my $name (keys %$leaf_symtab) {
		3617	_gv_clear *{"$pkg$name"};
		3618	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3619	}
		3620	warn "cleared package $pkg\n";#d#
		3621	}
		3622
2012	sub reload() {	3623	sub do_reload_perl() {
2013	# can/must only be called in main	3624	# can/must only be called in main
2014	if ($Coro::current != $Coro::main) {	3625	if ($Coro::current != $Coro::main) {
2015	warn "can only reload from main coroutine\n";	3626	warn "can only reload from main coroutine";
2016	return;	3627	return;
2017	}	3628	}
2018		3629
		3630	return if $RELOAD++;
		3631
		3632	my $t1 = EV::time;
		3633
		3634	while ($RELOAD) {
2019	warn "reloading...";	3635	warn "reloading...";
2020		3636
2021	my $guard = freeze_mainloop;	3637	warn "entering sync_job";
		3638
		3639	cf::sync_job {
		3640	cf::write_runtime_sync; # external watchdog should not bark
2022	cf::emergency_save;	3641	cf::emergency_save;
		3642	cf::write_runtime_sync; # external watchdog should not bark
2023		3643
2024	eval {	3644	warn "syncing database to disk";
		3645	BDB::db_env_txn_checkpoint $DB_ENV;
		3646
2025	# if anything goes wrong in here, we should simply crash as we already saved	3647	# if anything goes wrong in here, we should simply crash as we already saved
2026		3648
2027	# cancel all watchers	3649	warn "flushing outstanding aio requests";
2028	for (Event::all_watchers) {	3650	while (IO::AIO::nreqs || BDB::nreqs) {
2029	$_->cancel if $_->data & WF_AUTOCANCEL;	3651	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2030	}
2031
2032	# cancel all extension coros
2033	$_->cancel for values %EXT_CORO;
2034	%EXT_CORO = ();
2035
2036	# unload all extensions
2037	for (@exts) {
2038	warn "unloading <$_>";
2039	unload_extension $_;
2040	}
2041
2042	# unload all modules loaded from $LIBDIR
2043	while (my ($k, $v) = each %INC) {
2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2045
2046	warn "removing <$k>";
2047	delete $INC{$k};
2048
2049	$k =~ s/\.pm$//;
2050	$k =~ s/\//::/g;
2051
2052	if (my $cb = $k->can ("unload_module")) {
2053	$cb->();
2054	}	3652	}
2055		3653
2056	Symbol::delete_package $k;	3654	warn "cancelling all extension coros";
		3655	$_->cancel for values %EXT_CORO;
		3656	%EXT_CORO = ();
		3657
		3658	warn "removing commands";
		3659	%COMMAND = ();
		3660
		3661	warn "removing ext/exti commands";
		3662	%EXTCMD = ();
		3663	%EXTICMD = ();
		3664
		3665	warn "unloading/nuking all extensions";
		3666	for my $pkg (@EXTS) {
		3667	warn "... unloading $pkg";
		3668
		3669	if (my $cb = $pkg->can ("unload")) {
		3670	eval {
		3671	$cb->($pkg);
		3672	1
		3673	} or warn "$pkg unloaded, but with errors: $@";
		3674	}
		3675
		3676	warn "... clearing $pkg";
		3677	clear_package $pkg;
2057	}	3678	}
2058		3679
2059	# sync database to disk	3680	warn "unloading all perl modules loaded from $LIBDIR";
2060	cf::db_sync;	3681	while (my ($k, $v) = each %INC) {
2061	IO::AIO::flush;	3682	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2062		3683
		3684	warn "... unloading $k";
		3685	delete $INC{$k};
		3686
		3687	$k =~ s/\.pm$//;
		3688	$k =~ s/\//::/g;
		3689
		3690	if (my $cb = $k->can ("unload_module")) {
		3691	$cb->();
		3692	}
		3693
		3694	clear_package $k;
		3695	}
		3696
2063	# get rid of safe::, as good as possible	3697	warn "getting rid of safe::, as good as possible";
2064	Symbol::delete_package "safe::$_"	3698	clear_package "safe::$_"
2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3699	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2066		3700
2067	# remove register_script_function callbacks	3701	warn "unloading cf.pm \"a bit\"";
2068	# TODO
2069
2070	# unload cf.pm "a bit"
2071	delete $INC{"cf.pm"};	3702	delete $INC{"cf.pm"};
		3703	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2072		3704
2073	# don't, removes xs symbols, too,	3705	# don't, removes xs symbols, too,
2074	# and global variables created in xs	3706	# and global variables created in xs
2075	#Symbol::delete_package __PACKAGE__;	3707	#clear_package __PACKAGE__;
2076		3708
2077	# reload cf.pm	3709	warn "unload completed, starting to reload now";
		3710
2078	warn "reloading cf.pm";	3711	warn "reloading cf.pm";
2079	require cf;	3712	require cf;
2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3713	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2081		3714
2082	# load config and database again	3715	warn "loading config and database again";
2083	cf::cfg_load;	3716	cf::reload_config;
2084	cf::db_load;
2085		3717
2086	# load extensions
2087	warn "load extensions";	3718	warn "loading extensions";
2088	cf::load_extensions;	3719	cf::load_extensions;
2089		3720
2090	# reattach attachments to objects	3721	if ($REATTACH_ON_RELOAD) {
		3722	warn "reattaching attachments to objects/players";
		3723	_global_reattach; # objects, sockets
		3724	warn "reattaching attachments to maps";
		3725	reattach $_ for values %MAP;
		3726	warn "reattaching attachments to players";
		3727	reattach $_ for values %PLAYER;
		3728	}
		3729
		3730	warn "running post_init jobs";
		3731	(pop @POST_INIT)->(1) while @POST_INIT;
		3732
		3733	warn "leaving sync_job";
		3734
		3735	1
		3736	} or do {
		3737	warn $@;
		3738	cf::cleanup "error while reloading, exiting.";
		3739	};
		3740
2091	warn "reattach";	3741	warn "reloaded";
2092	_global_reattach;	3742	--$RELOAD;
		3743	}
		3744
		3745	$t1 = EV::time - $t1;
		3746	warn "reload completed in ${t1}s\n";
		3747	};
		3748
		3749	our $RELOAD_WATCHER; # used only during reload
		3750
		3751	sub reload_perl() {
		3752	# doing reload synchronously and two reloads happen back-to-back,
		3753	# coro crashes during coro_state_free->destroy here.
		3754
		3755	$RELOAD_WATCHER ||= cf::async {
		3756	Coro::AIO::aio_wait cache_extensions;
		3757
		3758	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3759	do_reload_perl;
		3760	undef $RELOAD_WATCHER;
		3761	};
2093	};	3762	};
2094
2095	if ($@) {
2096	warn $@;
2097	warn "error while reloading, exiting.";
2098	exit 1;
2099	}
2100
2101	warn "reloaded successfully";
2102	};
2103
2104	#############################################################################
2105
2106	unless ($LINK_MAP) {
2107	$LINK_MAP = cf::map::new;
2108
2109	$LINK_MAP->width (41);
2110	$LINK_MAP->height (41);
2111	$LINK_MAP->alloc;
2112	$LINK_MAP->path ("{link}");
2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2115
2116	# dirty hack because... archetypes are not yet loaded
2117	Event->timer (
2118	after => 2,
2119	cb => sub {
2120	$_[0]->w->cancel;
2121
2122	# provide some exits "home"
2123	my $exit = cf::object::new "exit";
2124
2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2128
2129	$LINK_MAP->insert ($exit->clone, 19, 19);
2130	$LINK_MAP->insert ($exit->clone, 19, 20);
2131	$LINK_MAP->insert ($exit->clone, 19, 21);
2132	$LINK_MAP->insert ($exit->clone, 20, 19);
2133	$LINK_MAP->insert ($exit->clone, 20, 21);
2134	$LINK_MAP->insert ($exit->clone, 21, 19);
2135	$LINK_MAP->insert ($exit->clone, 21, 20);
2136	$LINK_MAP->insert ($exit->clone, 21, 21);
2137
2138	$exit->destroy;
2139	});
2140
2141	$LINK_MAP->{deny_save} = 1;
2142	$LINK_MAP->{deny_reset} = 1;
2143
2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2145	}	3763	}
2146
2147	register "<global>", __PACKAGE__;
2148		3764
2149	register_command "reload" => sub {	3765	register_command "reload" => sub {
2150	my ($who, $arg) = @_;	3766	my ($who, $arg) = @_;
2151		3767
2152	if ($who->flag (FLAG_WIZ)) {	3768	if ($who->flag (FLAG_WIZ)) {
2153	$who->message ("start of reload.");
2154	reload;
2155	$who->message ("end of reload.");	3769	$who->message ("reloading server.");
		3770	async {
		3771	$Coro::current->{desc} = "perl_reload";
		3772	reload_perl;
		3773	};
2156	}	3774	}
2157	};	3775	};
2158		3776
2159	unshift @INC, $LIBDIR;	3777	unshift @INC, $LIBDIR;
2160		3778
2161	$TICK_WATCHER = Event->timer (	3779	my $bug_warning = 0;
2162	reentrant => 0,	3780
2163	prio => 0,	3781	our @WAIT_FOR_TICK;
2164	at => $NEXT_TICK || $TICK,	3782	our @WAIT_FOR_TICK_BEGIN;
2165	data => WF_AUTOCANCEL,	3783
2166	cb => sub {	3784	sub wait_for_tick {
		3785	return if tick_inhibit || $Coro::current == $Coro::main;
		3786
		3787	my $signal = new Coro::Signal;
		3788	push @WAIT_FOR_TICK, $signal;
		3789	$signal->wait;
		3790	}
		3791
		3792	sub wait_for_tick_begin {
		3793	return if tick_inhibit || $Coro::current == $Coro::main;
		3794
		3795	my $signal = new Coro::Signal;
		3796	push @WAIT_FOR_TICK_BEGIN, $signal;
		3797	$signal->wait;
		3798	}
		3799
		3800	sub tick {
		3801	if ($Coro::current != $Coro::main) {
		3802	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3803	unless ++$bug_warning > 10;
		3804	return;
		3805	}
		3806
2167	cf::server_tick; # one server iteration	3807	cf::server_tick; # one server iteration
2168	$RUNTIME += $TICK;
2169	$NEXT_TICK += $TICK;
2170		3808
2171	# if we are delayed by four ticks or more, skip them all	3809	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3810	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2173		3811	Coro::async_pool {
2174	$TICK_WATCHER->at ($NEXT_TICK);	3812	$Coro::current->{desc} = "runtime saver";
2175	$TICK_WATCHER->start;
2176	},
2177	);
2178
2179	IO::AIO::max_poll_time $TICK * 0.2;
2180
2181	Event->io (
2182	fd => IO::AIO::poll_fileno,
2183	poll => 'r',
2184	prio => 5,
2185	data => WF_AUTOCANCEL,
2186	cb => \&IO::AIO::poll_cb,
2187	);
2188
2189	Event->timer (
2190	data => WF_AUTOCANCEL,
2191	after => 0,
2192	interval => 10,
2193	cb => sub {
2194	(Coro::unblock_sub {
2195	write_runtime	3813	write_runtime_sync
2196	or warn "ERROR: unable to write runtime file: $!";	3814	or warn "ERROR: unable to write runtime file: $!";
2197	})->();	3815	};
2198	},	3816	}
2199	);	3817
		3818	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3819	$sig->send;
		3820	}
		3821	while (my $sig = shift @WAIT_FOR_TICK) {
		3822	$sig->send;
		3823	}
		3824
		3825	$LOAD = ($NOW - $TICK_START) / $TICK;
		3826	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3827
		3828	if (0) {
		3829	if ($NEXT_TICK) {
		3830	my $jitter = $TICK_START - $NEXT_TICK;
		3831	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3832	warn "jitter $JITTER\n";#d#
		3833	}
		3834	}
		3835	}
		3836
		3837	{
		3838	# configure BDB
		3839
		3840	BDB::min_parallel 8;
		3841	BDB::max_poll_reqs $TICK * 0.1;
		3842	$AnyEvent::BDB::WATCHER->priority (1);
		3843
		3844	unless ($DB_ENV) {
		3845	$DB_ENV = BDB::db_env_create;
		3846	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3847	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3848	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3849	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3850	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3851
		3852	cf::sync_job {
		3853	eval {
		3854	BDB::db_env_open
		3855	$DB_ENV,
		3856	$BDBDIR,
		3857	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3858	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3859	0666;
		3860
		3861	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3862	};
		3863
		3864	cf::cleanup "db_env_open(db): $@" if $@;
		3865	};
		3866	}
		3867
		3868	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3869	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3870	};
		3871	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3872	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3873	};
		3874	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3875	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3876	};
		3877	}
		3878
		3879	{
		3880	# configure IO::AIO
		3881
		3882	IO::AIO::min_parallel 8;
		3883	IO::AIO::max_poll_time $TICK * 0.1;
		3884	undef $AnyEvent::AIO::WATCHER;
		3885	}
		3886
		3887	my $_log_backtrace;
		3888
		3889	sub _log_backtrace {
		3890	my ($msg, @addr) = @_;
		3891
		3892	$msg =~ s/\n//;
		3893
		3894	# limit the # of concurrent backtraces
		3895	if ($_log_backtrace < 2) {
		3896	++$_log_backtrace;
		3897	my $perl_bt = Carp::longmess $msg;
		3898	async {
		3899	$Coro::current->{desc} = "abt $msg";
		3900
		3901	my @bt = fork_call {
		3902	@addr = map { sprintf "%x", $_ } @addr;
		3903	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3904	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3905	or die "addr2line: $!";
		3906
		3907	my @funcs;
		3908	my @res = <$fh>;
		3909	chomp for @res;
		3910	while (@res) {
		3911	my ($func, $line) = splice @res, 0, 2, ();
		3912	push @funcs, "[$func] $line";
		3913	}
		3914
		3915	@funcs
		3916	};
		3917
		3918	LOG llevInfo, "[ABT] $perl_bt\n";
		3919	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3920	LOG llevInfo, "[ABT] $_\n" for @bt;
		3921	--$_log_backtrace;
		3922	};
		3923	} else {
		3924	LOG llevInfo, "[ABT] $msg\n";
		3925	LOG llevInfo, "[ABT] [suppressed]\n";
		3926	}
		3927	}
		3928
		3929	# load additional modules
		3930	eval "use cf::$_" for @EXTRA_MODULES;
2200		3931
2201	END { cf::emergency_save }	3932	END { cf::emergency_save }
2202		3933
2203	1	3934	1
2204		3935

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