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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.143 by root, Sun Jan 7 02:39:14 2007 UTC vs.
Revision 1.448 by root, Fri Sep 19 05:30:23 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict "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
13	use Coro 3.3 ();	37	use Coro ();
		38	use Coro::State;
		39	use Coro::Handle;
		40	use Coro::EV;
14	use Coro::Event;	41	use Coro::AnyEvent;
15	use Coro::Timer;	42	use Coro::Timer;
16	use Coro::Signal;	43	use Coro::Signal;
17	use Coro::Semaphore;	44	use Coro::Semaphore;
		45	use Coro::AnyEvent;
18	use Coro::AIO;	46	use Coro::AIO;
		47	use Coro::BDB 1.6;
		48	use Coro::Storable;
		49	use Coro::Util ();
19		50
		51	use JSON::XS 2.01 ();
		52	use BDB ();
		53	use Data::Dumper;
20	use Digest::MD5;	54	use Digest::MD5;
21	use Fcntl;	55	use Fcntl;
		56	use YAML ();
22	use IO::AIO 2.31 ();	57	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	58	use Time::HiRes;
		59	use Compress::LZF;
		60	use Digest::MD5 ();
25		61
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	62	AnyEvent::detect;
27		63
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	64	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	65	#
		66	$Storable::canonical = 1; # reduce rsync transfers
		67	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		68
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	69	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		70
		71	{
		72	# very ugly, but ensure we acquire the storable lock
		73
		74	sub net_mstore {
		75	my $guard = Coro::Storable::guard;
		76	&Storable::net_mstore
		77	}
		78
		79	sub mretrieve {
		80	my $guard = Coro::Storable::guard;
		81	&Storable::mretrieve
		82	}
		83
		84	Compress::LZF::set_serializer "Coro::Storable", "cf::net_mstore", "cf::mretrieve";
		85	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		86	}
32		87
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	88	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		89
35	our %COMMAND = ();	90	our %COMMAND = ();
36	our %COMMAND_TIME = ();	91	our %COMMAND_TIME = ();
		92
		93	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	94	our %EXTCMD = ();
		95	our %EXTICMD = ();
		96	our %EXT_CORO = (); # coroutines bound to extensions
		97	our %EXT_MAP = (); # pluggable maps
38		98
		99	our $RELOAD; # number of reloads so far
39	our @EVENT;	100	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		101
42	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	103	our $DATADIR = datadir;
		104	our $LIBDIR = "$DATADIR/ext";
		105	our $PODDIR = "$DATADIR/pod";
		106	our $MAPDIR = "$DATADIR/" . mapdir;
		107	our $LOCALDIR = localdir;
		108	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		109	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		110	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		111	our $RANDOMDIR = "$LOCALDIR/random";
		112	our $BDBDIR = "$LOCALDIR/db";
		113	our $PIDFILE = "$LOCALDIR/pid";
		114	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		115
		116	our %RESOURCE;
		117
		118	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		119	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	120	our $NEXT_TICK;
45	our $NOW;	121	our $USE_FSYNC = 1; # use fsync to write maps - default off
		122
		123	our $BDB_DEADLOCK_WATCHER;
		124	our $BDB_CHECKPOINT_WATCHER;
		125	our $BDB_TRICKLE_WATCHER;
		126	our $DB_ENV;
46		127
47	our %CFG;	128	our %CFG;
48		129
49	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
51		133
52	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	136	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	137
56	our %EXT_CORO; # coroutines bound to extensions	138	# used to convert map paths into valid unix filenames by replacing / by ∕
		139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
57		145
58	binmode STDOUT;	146	binmode STDOUT;
59	binmode STDERR;	147	binmode STDERR;
60		148
61	# read virtual server time, if available	149	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	150	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	151	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	152	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	153	$RUNTIME = <$fh> + 0.;
66	}	154	}
67		155
68	mkdir cf::localdir;	156	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	157	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		158
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	159	our $EMERGENCY_POSITION;
		160
		161	sub cf::map::normalise;
77		162
78	#############################################################################	163	#############################################################################
79		164
80	=head2 GLOBAL VARIABLES	165	=head2 GLOBAL VARIABLES
81		166
…		…
88	=item $cf::RUNTIME	173	=item $cf::RUNTIME
89		174
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	175	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	176	every server tick.
92		177
93	=item $cf::LIBDIR	178	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		179	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		180	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		181
95	The perl library directory, where extensions and cf-specific modules can	182	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	183	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		184	unique-items directory, player file directory, random maps directory and
		185	database environment.
97		186
98	=item $cf::NOW	187	=item $cf::NOW
99		188
100	The time of the last (current) server tick.	189	The time of the last (current) server tick.
101		190
102	=item $cf::TICK	191	=item $cf::TICK
103		192
104	The interval between server ticks, in seconds.	193	The interval between server ticks, in seconds.
105		194
		195	=item $cf::LOADAVG
		196
		197	The current CPU load on the server (alpha-smoothed), as a value between 0
		198	(none) and 1 (overloaded), indicating how much time is spent on processing
		199	objects per tick. Healthy values are < 0.5.
		200
		201	=item $cf::LOAD
		202
		203	The raw value load value from the last tick.
		204
106	=item %cf::CFG	205	=item %cf::CFG
107		206
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	207	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	208	from wherever your confdir points to.
		209
		210	=item cf::wait_for_tick, cf::wait_for_tick_begin
		211
		212	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		213	returns directly I<after> the tick processing (and consequently, can only wake one process
		214	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		215
		216	=item @cf::INVOKE_RESULTS
		217
		218	This array contains the results of the last C<invoke ()> call. When
		219	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		220	that call.
110		221
111	=back	222	=back
112		223
113	=cut	224	=cut
114		225
115	BEGIN {	226	BEGIN {
116	*CORE::GLOBAL::warn = sub {	227	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	228	my $msg = join "", @_;
118	utf8::encode $msg;
119		229
120	$msg .= "\n"	230	$msg .= "\n"
121	unless $msg =~ /\n$/;	231	unless $msg =~ /\n$/;
122		232
		233	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		234
123	LOG llevError, "cfperl: $msg";	235	LOG llevError, $msg;
124	};	236	};
125	}	237	}
		238
		239	$Coro::State::DIEHOOK = sub {
		240	return unless $^S eq 0; # "eq", not "=="
		241
		242	if ($Coro::current == $Coro::main) {#d#
		243	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		244	return;#d#
		245	}#d#
		246
		247	# kill coroutine otherwise
		248	warn Carp::longmess $_[0];
		249	Coro::terminate
		250	};
		251
		252	$SIG{__DIE__} = sub { }; #d#?
126		253
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	254	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	255	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	256	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	257	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	258	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		259	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	260	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		261
134	# we bless all objects into (empty) derived classes to force a method lookup	262	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	263	# within the Safe compartment.
136	for my $pkg (qw(	264	for my $pkg (qw(
137	cf::global cf::attachable	265	cf::global cf::attachable
138	cf::object cf::object::player	266	cf::object cf::object::player
139	cf::client cf::player	267	cf::client cf::player
140	cf::arch cf::living	268	cf::arch cf::living
		269	cf::map cf::mapspace
141	cf::map cf::party cf::region	270	cf::party cf::region
142	)) {	271	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	272	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	273	}
146		274
147	$Event::DIED = sub {	275	$EV::DIED = sub {
148	warn "error in event callback: @_";	276	warn "error in event callback: @_";
149	};	277	};
150		278
151	my %ext_pkg;	279	#############################################################################
152	my @exts;
153	my @hook;
154		280
155	=head2 UTILITY FUNCTIONS	281	=head2 UTILITY FUNCTIONS
156		282
157	=over 4	283	=over 4
158		284
159	=cut	285	=item dumpval $ref
160		286
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	287	=cut
162		288
		289	sub dumpval {
		290	eval {
		291	local $SIG{__DIE__};
		292	my $d;
		293	if (1) {
		294	$d = new Data::Dumper([$_[0]], ["*var"]);
		295	$d->Terse(1);
		296	$d->Indent(2);
		297	$d->Quotekeys(0);
		298	$d->Useqq(1);
		299	#$d->Bless(...);
		300	$d->Seen($_[1]) if @_ > 1;
		301	$d = $d->Dump();
		302	}
		303	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		304	$d
		305	} || "[unable to dump $_[0]: '$@']";
		306	}
		307
163	=item $ref = cf::from_json $json	308	=item $ref = cf::decode_json $json
164		309
165	Converts a JSON string into the corresponding perl data structure.	310	Converts a JSON string into the corresponding perl data structure.
166		311
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	312	=item $json = cf::encode_json $ref
175		313
176	Converts a perl data structure into its JSON representation.	314	Converts a perl data structure into its JSON representation.
177		315
178	=cut	316	=cut
179		317
180	sub to_json($) {	318	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	319
182	JSON::Syck::Dump $_[0]	320	sub encode_json($) { $json_coder->encode ($_[0]) }
183	}	321	sub decode_json($) { $json_coder->decode ($_[0]) }
184		322
185	=item cf::lock_wait $string	323	=item cf::lock_wait $string
186		324
187	Wait until the given lock is available. See cf::lock_acquire.	325	Wait until the given lock is available. See cf::lock_acquire.
188		326
…		…
191	Wait until the given lock is available and then acquires it and returns	329	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	330	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	331	for example when the coroutine gets canceled), the lock is automatically
194	returned.	332	returned.
195		333
		334	Locks are *not* recursive, locking from the same coro twice results in a
		335	deadlocked coro.
		336
196	Lock names should begin with a unique identifier (for example, cf::map::find	337	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	338	uses map_find and cf::map::load uses map_load).
198		339
		340	=item $locked = cf::lock_active $string
		341
		342	Return true if the lock is currently active, i.e. somebody has locked it.
		343
199	=cut	344	=cut
200		345
201	our %LOCK;	346	our %LOCK;
		347	our %LOCKER;#d#
202		348
203	sub lock_wait($) {	349	sub lock_wait($) {
204	my ($key) = @_;	350	my ($key) = @_;
		351
		352	if ($LOCKER{$key} == $Coro::current) {#d#
		353	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		354	return;#d#
		355	}#d#
205		356
206	# wait for lock, if any	357	# wait for lock, if any
207	while ($LOCK{$key}) {	358	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;	359	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;	360	Coro::schedule;
…		…
215		366
216	# wait, to be sure we are not locked	367	# wait, to be sure we are not locked
217	lock_wait $key;	368	lock_wait $key;
218		369
219	$LOCK{$key} = [];	370	$LOCK{$key} = [];
		371	$LOCKER{$key} = $Coro::current;#d#
220		372
221	Coro::guard {	373	Coro::guard {
		374	delete $LOCKER{$key};#d#
222	# wake up all waiters, to be on the safe side	375	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	376	$_->ready for @{ delete $LOCK{$key} };
224	}	377	}
225	}	378	}
226		379
		380	sub lock_active($) {
		381	my ($key) = @_;
		382
		383	! ! $LOCK{$key}
		384	}
		385
227	sub freeze_mainloop {	386	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	387	tick_inhibit_inc;
229		388
230	my $guard = Coro::guard { $TICK_WATCHER->start };	389	Coro::guard \&tick_inhibit_dec;
231	$TICK_WATCHER->stop;	390	}
232	$guard	391
		392	=item cf::periodic $interval, $cb
		393
		394	Like EV::periodic, but randomly selects a starting point so that the actions
		395	get spread over timer.
		396
		397	=cut
		398
		399	sub periodic($$) {
		400	my ($interval, $cb) = @_;
		401
		402	my $start = rand List::Util::min 180, $interval;
		403
		404	EV::periodic $start, $interval, 0, $cb
		405	}
		406
		407	=item cf::get_slot $time[, $priority[, $name]]
		408
		409	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		410	This call blocks and returns only when you have at least C<$time> seconds
		411	of cpu time till the next tick. The slot is only valid till the next cede.
		412
		413	The optional C<$name> can be used to identify the job to run. It might be
		414	used for statistical purposes and should identify the same time-class.
		415
		416	Useful for short background jobs.
		417
		418	=cut
		419
		420	our @SLOT_QUEUE;
		421	our $SLOT_QUEUE;
		422
		423	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		424	$SLOT_QUEUE = Coro::async {
		425	$Coro::current->desc ("timeslot manager");
		426
		427	my $signal = new Coro::Signal;
		428
		429	while () {
		430	next_job:
		431	my $avail = cf::till_tick;
		432	if ($avail > 0.01) {
		433	for (0 .. $#SLOT_QUEUE) {
		434	if ($SLOT_QUEUE[$_][0] < $avail) {
		435	my $job = splice @SLOT_QUEUE, $_, 1, ();
		436	$job->[2]->send;
		437	Coro::cede;
		438	goto next_job;
		439	}
		440	}
		441	}
		442
		443	if (@SLOT_QUEUE) {
		444	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		445	push @cf::WAIT_FOR_TICK, $signal;
		446	$signal->wait;
		447	} else {
		448	Coro::schedule;
		449	}
		450	}
		451	};
		452
		453	sub get_slot($;$$) {
		454	return if tick_inhibit || $Coro::current == $Coro::main;
		455
		456	my ($time, $pri, $name) = @_;
		457
		458	$time = $TICK * .6 if $time > $TICK * .6;
		459	my $sig = new Coro::Signal;
		460
		461	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		462	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		463	$SLOT_QUEUE->ready;
		464	$sig->wait;
233	}	465	}
234		466
235	=item cf::async { BLOCK }	467	=item cf::async { BLOCK }
236		468
237	Currently the same as Coro::async_pool, meaning you cannot use	469	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		474
243	BEGIN { *async = \&Coro::async_pool }	475	BEGIN { *async = \&Coro::async_pool }
244		476
245	=item cf::sync_job { BLOCK }	477	=item cf::sync_job { BLOCK }
246		478
247	The design of crossfire+ requires that the main coro ($Coro::main) is	479	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	480	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	481	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		482	acceptable.
250		483
251	If it must be done, put the blocking parts into C<sync_job>. This will run	484	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	485	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	486	server will be frozen during this time, so the block should either finish
254	fast or be very important.	487	fast or be very important.
…		…
257		490
258	sub sync_job(&) {	491	sub sync_job(&) {
259	my ($job) = @_;	492	my ($job) = @_;
260		493
261	if ($Coro::current == $Coro::main) {	494	if ($Coro::current == $Coro::main) {
		495	my $time = EV::time;
		496
262	# this is the main coro, too bad, we have to block	497	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	498	# till the operation succeeds, freezing the server :/
264		499
265	# TODO: use suspend/resume instead	500	LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	501
267	my $freeze_guard = freeze_mainloop;	502	my $freeze_guard = freeze_mainloop;
268		503
269	my $busy = 1;	504	my $busy = 1;
270	my @res;	505	my @res;
271		506
272	(async {	507	(async {
		508	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	509	@res = eval { $job->() };
274	warn $@ if $@;	510	warn $@ if $@;
275	undef $busy;	511	undef $busy;
276	})->prio (Coro::PRIO_MAX);	512	})->prio (Coro::PRIO_MAX);
277		513
278	while ($busy) {	514	while ($busy) {
279	Coro::cede or Event::one_event;	515	if (Coro::nready) {
		516	Coro::cede_notself;
		517	} else {
		518	EV::loop EV::LOOP_ONESHOT;
280	}	519	}
		520	}
		521
		522	my $time = EV::time - $time;
		523
		524	$TICK_START += $time; # do not account sync jobs to server load
281		525
282	wantarray ? @res : $res[0]	526	wantarray ? @res : $res[0]
283	} else {	527	} else {
284	# we are in another coroutine, how wonderful, everything just works	528	# we are in another coroutine, how wonderful, everything just works
285		529
…		…
287	}	531	}
288	}	532	}
289		533
290	=item $coro = cf::async_ext { BLOCK }	534	=item $coro = cf::async_ext { BLOCK }
291		535
292	Like async, but this coro is automcatially being canceled when the	536	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	537	extension calling this is being unloaded.
294		538
295	=cut	539	=cut
296		540
297	sub async_ext(&) {	541	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	549	$EXT_CORO{$coro+0} = $coro;
306		550
307	$coro	551	$coro
308	}	552	}
309		553
310	sub write_runtime {	554	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		555
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	556	Executes the given code block with the given arguments in a seperate
314	or return;	557	process, returning the results. Everything must be serialisable with
		558	Coro::Storable. May, of course, block. Note that the executed sub may
		559	never block itself or use any form of event handling.
315		560
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	561	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		562
320	aio_fsync $fh	563	sub fork_call(&@) {
321	and return;	564	my ($cb, @args) = @_;
322		565
323	close $fh	566	# we seemingly have to make a local copy of the whole thing,
324	or return;	567	# otherwise perl prematurely frees the stuff :/
		568	# TODO: investigate and fix (likely this will be rather laborious)
325		569
326	aio_rename "$runtime~", $runtime	570	my @res = Coro::Util::fork_eval {
327	and return;	571	reset_signals;
		572	&$cb
		573	}, @args;
328		574
		575	wantarray ? @res : $res[-1]
		576	}
		577
		578	=item $coin = coin_from_name $name
		579
		580	=cut
		581
		582	our %coin_alias = (
		583	"silver" => "silvercoin",
		584	"silvercoin" => "silvercoin",
		585	"silvercoins" => "silvercoin",
		586	"gold" => "goldcoin",
		587	"goldcoin" => "goldcoin",
		588	"goldcoins" => "goldcoin",
		589	"platinum" => "platinacoin",
		590	"platinumcoin" => "platinacoin",
		591	"platinumcoins" => "platinacoin",
		592	"platina" => "platinacoin",
		593	"platinacoin" => "platinacoin",
		594	"platinacoins" => "platinacoin",
		595	"royalty" => "royalty",
		596	"royalties" => "royalty",
		597	);
		598
		599	sub coin_from_name($) {
		600	$coin_alias{$_[0]}
		601	? cf::arch::find $coin_alias{$_[0]}
		602	: undef
		603	}
		604
		605	=item $value = cf::db_get $family => $key
		606
		607	Returns a single value from the environment database.
		608
		609	=item cf::db_put $family => $key => $value
		610
		611	Stores the given C<$value> in the family. It can currently store binary
		612	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		613
		614	=item $db = cf::db_table "name"
		615
		616	Create and/or open a new database table. The string must not be "db" and must be unique
		617	within each server.
		618
		619	=cut
		620
		621	sub db_table($) {
		622	my ($name) = @_;
		623	my $db = BDB::db_create $DB_ENV;
		624
		625	eval {
		626	$db->set_flags (BDB::CHKSUM);
		627
		628	utf8::encode $name;
		629	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		630	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		631	cf::cleanup "db_open(db): $!" if $!;
		632	};
		633	cf::cleanup "db_open(db): $@" if $@;
		634
		635	$db
		636	}
		637
		638	our $DB;
		639
		640	sub db_init {
		641	cf::sync_job {
		642	$DB ||= db_table "db";
		643	};
		644	}
		645
		646	sub db_get($$) {
		647	my $key = "$_[0]/$_[1]";
		648
		649	cf::sync_job {
		650	BDB::db_get $DB, undef, $key, my $data;
		651
		652	$! ? ()
		653	: $data
329	1	654	}
		655	}
		656
		657	sub db_put($$$) {
		658	BDB::dbreq_pri 4;
		659	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		660	}
		661
		662	=item cf::cache $id => [$paths...], $processversion => $process
		663
		664	Generic caching function that returns the value of the resource $id,
		665	caching and regenerating as required.
		666
		667	This function can block.
		668
		669	=cut
		670
		671	sub cache {
		672	my ($id, $src, $processversion, $process) = @_;
		673
		674	my $meta =
		675	join "\x00",
		676	$processversion,
		677	map {
		678	aio_stat $_
		679	and Carp::croak "$_: $!";
		680
		681	($_, (stat _)[7,9])
		682	} @$src;
		683
		684	my $dbmeta = db_get cache => "$id/meta";
		685	if ($dbmeta ne $meta) {
		686	# changed, we may need to process
		687
		688	my @data;
		689	my $md5;
		690
		691	for (0 .. $#$src) {
		692	0 <= aio_load $src->[$_], $data[$_]
		693	or Carp::croak "$src->[$_]: $!";
		694	}
		695
		696	# if processing is expensive, check
		697	# checksum first
		698	if (1) {
		699	$md5 =
		700	join "\x00",
		701	$processversion,
		702	map {
		703	cf::cede_to_tick;
		704	($src->[$_], Digest::MD5::md5_hex $data[$_])
		705	} 0.. $#$src;
		706
		707
		708	my $dbmd5 = db_get cache => "$id/md5";
		709	if ($dbmd5 eq $md5) {
		710	db_put cache => "$id/meta", $meta;
		711
		712	return db_get cache => "$id/data";
		713	}
		714	}
		715
		716	my $t1 = Time::HiRes::time;
		717	my $data = $process->(\@data);
		718	my $t2 = Time::HiRes::time;
		719
		720	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		721
		722	db_put cache => "$id/data", $data;
		723	db_put cache => "$id/md5" , $md5;
		724	db_put cache => "$id/meta", $meta;
		725
		726	return $data;
		727	}
		728
		729	db_get cache => "$id/data"
		730	}
		731
		732	=item cf::datalog type => key => value, ...
		733
		734	Log a datalog packet of the given type with the given key-value pairs.
		735
		736	=cut
		737
		738	sub datalog($@) {
		739	my ($type, %kv) = @_;
		740	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	741	}
331		742
332	=back	743	=back
333		744
334	=cut	745	=cut
335		746
336	#############################################################################	747	#############################################################################
337		748
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	749	=head2 ATTACHABLE OBJECTS
459		750
460	Many objects in crossfire are so-called attachable objects. That means you can	751	Many objects in deliantra are so-called attachable objects. That means you can
461	attach callbacks/event handlers (a collection of which is called an "attachment")	752	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	753	to it. All such attachable objects support the following methods.
463		754
464	In the following description, CLASS can be any of C<global>, C<object>	755	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	756	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	757	Deliantra).
467		758
468	=over 4	759	=over 4
469		760
470	=item $attachable->attach ($attachment, key => $value...)	761	=item $attachable->attach ($attachment, key => $value...)
471		762
…		…
515	=item cf::CLASS::attachment $name, ...	806	=item cf::CLASS::attachment $name, ...
516		807
517	Register an attachment by C<$name> through which attachable objects of the	808	Register an attachment by C<$name> through which attachable objects of the
518	given CLASS can refer to this attachment.	809	given CLASS can refer to this attachment.
519		810
520	Some classes such as crossfire maps and objects can specify attachments	811	Some classes such as deliantra maps and objects can specify attachments
521	that are attached at load/instantiate time, thus the need for a name.	812	that are attached at load/instantiate time, thus the need for a name.
522		813
523	These calls expect any number of the following handler/hook descriptions:	814	These calls expect any number of the following handler/hook descriptions:
524		815
525	=over 4	816	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	876	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	877	our @CB_MAP = ();
587		878
588	my %attachment;	879	my %attachment;
589		880
		881	sub cf::attachable::thawer_merge {
		882	# simply override everything except _meta
		883	local $_[0]{_meta};
		884	%{$_[0]} = %{$_[1]};
		885	}
		886
590	sub _attach_cb($$$$) {	887	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	888	my ($registry, $event, $prio, $cb) = @_;
592		889
593	use sort 'stable';	890	use sort 'stable';
594		891
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	925	$registry = $CB_TYPE[$object_type] ||= [];
629		926
630	} elsif ($type eq "subtype") {	927	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	928	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	929	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	930	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		931
635	} elsif ($type eq "package") {	932	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	933	my $pkg = shift @arg;
637		934
638	while (my ($name, $id) = each %cb_id) {	935	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	964	_attach $registry, $klass, @attach;
668	}	965	}
669		966
670	$obj->{$name} = \%arg;	967	$obj->{$name} = \%arg;
671	} else {	968	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	969	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	970	}
674		971
675	$obj->{_attachment}{$name} = undef;	972	$obj->{_attachment}{$name} = undef;
676	}	973	}
677		974
…		…
679	if (ref $_[0]) {	976	if (ref $_[0]) {
680	_object_attach @_;	977	_object_attach @_;
681	} else {	978	} else {
682	_attach shift->_attach_registry, @_;	979	_attach shift->_attach_registry, @_;
683	}	980	}
		981	_recalc_want;
684	};	982	};
685		983
686	# all those should be optimised	984	# all those should be optimised
687	sub cf::attachable::detach {	985	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	986	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	989	delete $obj->{_attachment}{$name};
692	reattach ($obj);	990	reattach ($obj);
693	} else {	991	} else {
694	Carp::croak "cannot, currently, detach class attachments";	992	Carp::croak "cannot, currently, detach class attachments";
695	}	993	}
		994	_recalc_want;
696	};	995	};
697		996
698	sub cf::attachable::attached {	997	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	998	my ($obj, $name) = @_;
700		999
…		…
715	";	1014	";
716	die if $@;	1015	die if $@;
717	}	1016	}
718		1017
719	our $override;	1018	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1019	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1020
722	sub override {	1021	sub override {
723	$override = 1;	1022	$override = 1;
724	@invoke_results = ();	1023	@INVOKE_RESULTS = (@_);
725	}	1024	}
726		1025
727	sub do_invoke {	1026	sub do_invoke {
728	my $event = shift;	1027	my $event = shift;
729	my $callbacks = shift;	1028	my $callbacks = shift;
730		1029
731	@invoke_results = ();	1030	@INVOKE_RESULTS = ();
732		1031
733	local $override;	1032	local $override;
734		1033
735	for (@$callbacks) {	1034	for (@$callbacks) {
736	eval { &{$_->[1]} };	1035	eval { &{$_->[1]} };
…		…
745	}	1044	}
746		1045
747	0	1046	0
748	}	1047	}
749		1048
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1049	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1050
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1051	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1052
754	Generate an object-specific event with the given arguments.	1053	Generate an object-specific event with the given arguments.
755		1054
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1055	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1056	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1057	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1058
760	=back	1059	=back
761		1060
762	=cut	1061	=cut
763		1062
764	#############################################################################	1063	#############################################################################
765	# object support	1064	# object support
		1065
		1066	sub _object_equal($$);
		1067	sub _object_equal($$) {
		1068	my ($a, $b) = @_;
		1069
		1070	return 0 unless (ref $a) eq (ref $b);
		1071
		1072	if ("HASH" eq ref $a) {
		1073	my @ka = keys %$a;
		1074	my @kb = keys %$b;
		1075
		1076	return 0 if @ka != @kb;
		1077
		1078	for (0 .. $#ka) {
		1079	return 0 unless $ka[$_] eq $kb[$_];
		1080	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1081	}
		1082
		1083	} elsif ("ARRAY" eq ref $a) {
		1084
		1085	return 0 if @$a != @$b;
		1086
		1087	for (0 .. $#$a) {
		1088	return 0 unless _object_equal $a->[$_], $b->[$_];
		1089	}
		1090
		1091	} elsif ($a ne $b) {
		1092	return 0;
		1093	}
		1094
		1095	1
		1096	}
		1097
		1098	our $SLOW_MERGES;#d#
		1099	sub _can_merge {
		1100	my ($ob1, $ob2) = @_;
		1101
		1102	++$SLOW_MERGES;#d#
		1103
		1104	# we do the slow way here
		1105	return _object_equal $ob1, $ob2
		1106	}
766		1107
767	sub reattach {	1108	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1109	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1110	my ($obj) = @_;
		1111
		1112	# no longer needed after getting rid of delete_package?
		1113	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1114
771	my $registry = $obj->registry;	1115	my $registry = $obj->registry;
772		1116
773	@$registry = ();	1117	@$registry = ();
774		1118
…		…
789	cf::attachable->attach (	1133	cf::attachable->attach (
790	prio => -1000000,	1134	prio => -1000000,
791	on_instantiate => sub {	1135	on_instantiate => sub {
792	my ($obj, $data) = @_;	1136	my ($obj, $data) = @_;
793		1137
794	$data = from_json $data;	1138	$data = decode_json $data;
795		1139
796	for (@$data) {	1140	for (@$data) {
797	my ($name, $args) = @$_;	1141	my ($name, $args) = @$_;
798		1142
799	$obj->attach ($name, %{$args || {} });	1143	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1159	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1160	my ($filename, $rdata, $objs) = @_;
817		1161
818	sync_job {	1162	sync_job {
819	if (length $$rdata) {	1163	if (length $$rdata) {
		1164	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1165	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1166	$decname, length $$rdata, scalar @$objs;
822		1167
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1168	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1169	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1170	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	1171	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1172	aio_close $fh;
828		1173
829	if (@$objs) {	1174	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1177	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1178	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	1179	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	1180	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1181	aio_rename "$filename.pst~", "$filename.pst";
837	}	1182	}
838	} else {	1183	} else {
839	aio_unlink "$filename.pst";	1184	aio_unlink "$filename.pst";
840	}	1185	}
…		…
845	}	1190	}
846	} else {	1191	} else {
847	aio_unlink $filename;	1192	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1193	aio_unlink "$filename.pst";
849	}	1194	}
850	}	1195	};
851	}	1196	}
852		1197
853	sub object_freezer_as_string {	1198	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1199	my ($rdata, $objs) = @_;
855		1200
…		…
867	or return;	1212	or return;
868		1213
869	unless (aio_stat "$filename.pst") {	1214	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1215	(aio_load "$filename.pst", $av) >= 0
871	or return;	1216	or return;
		1217
872	$av = eval { (Storable::thaw $av)->{objs} };	1218	my $st = eval { Coro::Storable::thaw $av };
		1219	$av = $st->{objs};
873	}	1220	}
874		1221
		1222	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1223	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1224	$decname, length $data, scalar @{$av || []};
		1225
877	return ($data, $av);	1226	($data, $av)
878	}	1227	}
		1228
		1229	=head2 COMMAND CALLBACKS
		1230
		1231	=over 4
		1232
		1233	=cut
879		1234
880	#############################################################################	1235	#############################################################################
881	# command handling &c	1236	# command handling &c
882		1237
883	=item cf::register_command $name => \&callback($ob,$args);	1238	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1251	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1252	}
898		1253
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1254	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1255
901	Register a callbackf ro execution when the client sends an extcmd packet.	1256	Register a callback for execution when the client sends an (synchronous)
		1257	extcmd packet. Ext commands will be processed in the order they are
		1258	received by the server, like other user commands. The first argument is
		1259	the logged-in player. Ext commands can only be processed after a player
		1260	has logged in successfully.
902		1261
903	If the callback returns something, it is sent back as if reply was being	1262	If the callback returns something, it is sent back as if reply was being
904	called.	1263	called.
905		1264
		1265	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1266
		1267	Register a callback for execution when the client sends an (asynchronous)
		1268	exticmd packet. Exti commands are processed by the server as soon as they
		1269	are received, i.e. out of order w.r.t. other commands. The first argument
		1270	is a client socket. Exti commands can be received anytime, even before
		1271	log-in.
		1272
		1273	If the callback returns something, it is sent back as if reply was being
		1274	called.
		1275
906	=cut	1276	=cut
907		1277
908	sub register_extcmd {	1278	sub register_extcmd {
909	my ($name, $cb) = @_;	1279	my ($name, $cb) = @_;
910		1280
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1281	$EXTCMD{$name} = $cb;
		1282	}
		1283
		1284	sub register_exticmd {
		1285	my ($name, $cb) = @_;
		1286
		1287	$EXTICMD{$name} = $cb;
915	}	1288	}
916		1289
917	cf::player->attach (	1290	cf::player->attach (
918	on_command => sub {	1291	on_command => sub {
919	my ($pl, $name, $params) = @_;	1292	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1301	cf::override;
929	},	1302	},
930	on_extcmd => sub {	1303	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1304	my ($pl, $buf) = @_;
932		1305
933	my $msg = eval { from_json $buf };	1306	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1307
935	if (ref $msg) {	1308	if (ref $msg) {
		1309	my ($type, $reply, @payload) =
		1310	"ARRAY" eq ref $msg
		1311	? @$msg
		1312	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1313
		1314	my @reply;
		1315
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1316	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1317	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1318	}
		1319
		1320	$pl->ext_reply ($reply, @reply)
		1321	if $reply;
		1322
941	} else {	1323	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1324	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1325	}
944		1326
945	cf::override;	1327	cf::override;
946	},	1328	},
947	);	1329	);
948		1330
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {
956	my ($path) = @_;
957
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;
960	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}
1024
1025	sub load_extensions {	1331	sub load_extensions {
		1332	cf::sync_job {
		1333	my %todo;
		1334
1026	for my $ext (<$LIBDIR/*.ext>) {	1335	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1336	next unless -r $path;
1028	eval {	1337
1029	load_extension $ext;	1338	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1339	my $base = $1;
		1340	my $pkg = $1;
		1341	$pkg =~ s/[^[:word:]]/_/g;
		1342	$pkg = "ext::$pkg";
		1343
		1344	open my $fh, "<:utf8", $path
		1345	or die "$path: $!";
		1346
		1347	my $source = do { local $/; <$fh> };
		1348
		1349	my %ext = (
		1350	path => $path,
		1351	base => $base,
		1352	pkg => $pkg,
		1353	);
		1354
		1355	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1356	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1357
		1358	$ext{source} =
		1359	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1360	. "#line 1 \"$path\"\n{\n"
		1361	. $source
		1362	. "\n};\n1";
		1363
		1364	$todo{$base} = \%ext;
		1365	}
		1366
		1367	my %done;
		1368	while (%todo) {
		1369	my $progress;
		1370
		1371	while (my ($k, $v) = each %todo) {
		1372	for (split /,\s*/, $v->{meta}{depends}) {
		1373	goto skip
		1374	unless exists $done{$_};
		1375	}
		1376
		1377	warn "... loading '$k' into '$v->{pkg}'\n";
		1378
		1379	unless (eval $v->{source}) {
		1380	my $msg = $@ ? "$v->{path}: $@\n"
		1381	: "$v->{base}: extension inactive.\n";
		1382
		1383	if (exists $v->{meta}{mandatory}) {
		1384	warn $msg;
		1385	cf::cleanup "mandatory extension failed to load, exiting.";
		1386	}
		1387
		1388	warn $msg;
		1389	}
		1390
		1391	$done{$k} = delete $todo{$k};
		1392	push @EXTS, $v->{pkg};
		1393	$progress = 1;
1030	1	1394	}
1031	} or warn "$ext not loaded: $@";	1395
		1396	skip:
		1397	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1398	unless $progress;
		1399	}
1032	}	1400	};
1033	}	1401	}
1034		1402
1035	#############################################################################	1403	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1404
1038	*cf::mapsupport::on_clean = sub {	1405	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1406
1073	=head2 CORE EXTENSIONS	1407	=head2 CORE EXTENSIONS
1074		1408
1075	Functions and methods that extend core crossfire objects.	1409	Functions and methods that extend core deliantra objects.
1076		1410
1077	=cut	1411	=cut
1078		1412
1079	package cf::player;	1413	package cf::player;
1080		1414
		1415	use Coro::AIO;
		1416
1081	=head3 cf::player	1417	=head3 cf::player
1082		1418
1083	=over 4	1419	=over 4
1084		1420
		1421	=item cf::player::num_playing
		1422
		1423	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1424
		1425	=cut
		1426
		1427	sub num_playing {
		1428	scalar grep
		1429	$_->ob->map
		1430	&& !$_->hidden
		1431	&& !$_->ob->flag (cf::FLAG_WIZ),
		1432	cf::player::list
		1433	}
		1434
1085	=item cf::player::find $login	1435	=item cf::player::find $login
1086		1436
1087	Returns the given player object, loading it if necessary (might block).	1437	Returns the given player object, loading it if necessary (might block).
1088		1438
1089	=cut	1439	=cut
1090		1440
		1441	sub playerdir($) {
		1442	"$PLAYERDIR/"
		1443	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1444	}
		1445
1091	sub path($) {	1446	sub path($) {
1092	sprintf "%s/%s/%s/%s.pl",	1447	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1093	cf::localdir, cf::playerdir,	1448
1094	(ref $_[0] ? $_[0]->ob->name : $_[0]) x 2	1449	(playerdir $login) . "/playerdata"
1095	}	1450	}
1096		1451
1097	sub find_active($) {	1452	sub find_active($) {
1098	$cf::PLAYER{$_[0]}	1453	$cf::PLAYER{$_[0]}
1099	and $cf::PLAYER{$_[0]}->active	1454	and $cf::PLAYER{$_[0]}->active
…		…
1102		1457
1103	sub exists($) {	1458	sub exists($) {
1104	my ($login) = @_;	1459	my ($login) = @_;
1105		1460
1106	$cf::PLAYER{$login}	1461	$cf::PLAYER{$login}
1107	or cf::sync_job { !aio_stat $login }	1462	or cf::sync_job { !aio_stat path $login }
1108	}	1463	}
1109		1464
1110	sub find($) {	1465	sub find($) {
1111	return $cf::PLAYER{$_[0]} || do {	1466	return $cf::PLAYER{$_[0]} || do {
1112	my $login = $_[0];	1467	my $login = $_[0];
1113		1468
1114	my $guard = cf::lock_acquire "user_find:$login";	1469	my $guard = cf::lock_acquire "user_find:$login";
1115		1470
1116	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1471	$cf::PLAYER{$_[0]} || do {
		1472	# rename old playerfiles to new ones
		1473	#TODO: remove when no longer required
		1474	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1475	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1476	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1477	aio_unlink +(playerdir $login) . "/$login.pl";
		1478
		1479	my $f = new_from_file cf::object::thawer path $login
		1480	or return;
		1481
		1482	my $pl = cf::player::load_pl $f
		1483	or return;
		1484
		1485	local $cf::PLAYER_LOADING{$login} = $pl;
		1486	$f->resolve_delayed_derefs;
		1487	$cf::PLAYER{$login} = $pl
		1488	}
1117	};	1489	}
1118	}	1490	}
1119		1491
1120	sub save($) {	1492	sub save($) {
1121	my ($pl) = @_;	1493	my ($pl) = @_;
1122		1494
…		…
1124		1496
1125	my $path = path $pl;	1497	my $path = path $pl;
1126	my $guard = cf::lock_acquire "user_save:$path";	1498	my $guard = cf::lock_acquire "user_save:$path";
1127		1499
1128	return if $pl->{deny_save};	1500	return if $pl->{deny_save};
		1501
		1502	aio_mkdir playerdir $pl, 0770;
1129	$pl->{last_save} = $cf::RUNTIME;	1503	$pl->{last_save} = $cf::RUNTIME;
1130		1504
1131	Coro::cede;	1505	cf::get_slot 0.01;
		1506
1132	$pl->save_pl ($path);	1507	$pl->save_pl ($path);
1133	Coro::cede;	1508	cf::cede_to_tick;
1134	}	1509	}
1135		1510
1136	sub new($) {	1511	sub new($) {
1137	my ($login) = @_;	1512	my ($login) = @_;
1138		1513
…		…
1144	$cf::PLAYER{$login} = $self;	1519	$cf::PLAYER{$login} = $self;
1145		1520
1146	$self	1521	$self
1147	}	1522	}
1148		1523
		1524	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1525
		1526	=cut
		1527
		1528	sub send_msg {
		1529	my $ns = shift->ns
		1530	or return;
		1531	$ns->send_msg (@_);
		1532	}
		1533
		1534	=item $pl->quit_character
		1535
		1536	Nukes the player without looking back. If logged in, the connection will
		1537	be destroyed. May block for a long time.
		1538
		1539	=cut
		1540
		1541	sub quit_character {
		1542	my ($pl) = @_;
		1543
		1544	my $name = $pl->ob->name;
		1545
		1546	$pl->{deny_save} = 1;
		1547	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1548
		1549	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1550	$pl->deactivate;
		1551	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1552	$pl->ob->check_score;
		1553	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1554	$pl->ns->destroy if $pl->ns;
		1555
		1556	my $path = playerdir $pl;
		1557	my $temp = "$path~$cf::RUNTIME~deleting~";
		1558	aio_rename $path, $temp;
		1559	delete $cf::PLAYER{$pl->ob->name};
		1560	$pl->destroy;
		1561
		1562	my $prefix = qr<^~\Q$name\E/>;
		1563
		1564	# nuke player maps
		1565	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1566
		1567	IO::AIO::aio_rmtree $temp;
		1568	}
		1569
		1570	=item $pl->kick
		1571
		1572	Kicks a player out of the game. This destroys the connection.
		1573
		1574	=cut
		1575
		1576	sub kick {
		1577	my ($pl, $kicker) = @_;
		1578
		1579	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1580	$pl->killer ("kicked");
		1581	$pl->ns->destroy;
		1582	}
		1583
		1584	=item cf::player::list_logins
		1585
		1586	Returns am arrayref of all valid playernames in the system, can take a
		1587	while and may block, so not sync_job-capable, ever.
		1588
		1589	=cut
		1590
		1591	sub list_logins {
		1592	my $dirs = aio_readdir $PLAYERDIR
		1593	or return [];
		1594
		1595	my @logins;
		1596
		1597	for my $login (@$dirs) {
		1598	my $path = path $login;
		1599
		1600	# a .pst is a dead give-away for a valid player
		1601	# if no pst file found, open and chekc for blocked users
		1602	if (aio_stat "$path.pst") {
		1603	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1604	aio_read $fh, 0, 512, my $buf, 0 or next;
		1605	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1606	}
		1607
		1608	utf8::decode $login;
		1609	push @logins, $login;
		1610	}
		1611
		1612	\@logins
		1613	}
		1614
		1615	=item $player->maps
		1616
		1617	Returns an arrayref of map paths that are private for this
		1618	player. May block.
		1619
		1620	=cut
		1621
		1622	sub maps($) {
		1623	my ($pl) = @_;
		1624
		1625	$pl = ref $pl ? $pl->ob->name : $pl;
		1626
		1627	my $files = aio_readdir playerdir $pl
		1628	or return;
		1629
		1630	my @paths;
		1631
		1632	for (@$files) {
		1633	utf8::decode $_;
		1634	next if /\.(?:pl|pst)$/;
		1635	next unless /^$PATH_SEP/o;
		1636
		1637	push @paths, cf::map::normalise "~$pl/$_";
		1638	}
		1639
		1640	\@paths
		1641	}
		1642
		1643	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1644
		1645	Expand deliantra pod fragments into protocol xml.
		1646
1149	=item $player->ext_reply ($msgid, $msgtype, %msg)	1647	=item $player->ext_reply ($msgid, @msg)
1150		1648
1151	Sends an ext reply to the player.	1649	Sends an ext reply to the player.
1152		1650
1153	=cut	1651	=cut
1154		1652
1155	sub ext_reply($$$%) {	1653	sub ext_reply($$@) {
1156	my ($self, $id, %msg) = @_;	1654	my ($self, $id, @msg) = @_;
1157		1655
1158	$msg{msgid} = $id;	1656	$self->ns->ext_reply ($id, @msg)
1159
1160	$self->send ("ext " . cf::to_json \%msg);
1161	}	1657	}
1162		1658
1163	package cf;	1659	=item $player->ext_msg ($type, @msg)
		1660
		1661	Sends an ext event to the client.
		1662
		1663	=cut
		1664
		1665	sub ext_msg($$@) {
		1666	my ($self, $type, @msg) = @_;
		1667
		1668	$self->ns->ext_msg ($type, @msg);
		1669	}
		1670
		1671	=head3 cf::region
		1672
		1673	=over 4
		1674
		1675	=cut
		1676
		1677	package cf::region;
		1678
		1679	=item cf::region::find_by_path $path
		1680
		1681	Tries to decuce the likely region for a map knowing only its path.
		1682
		1683	=cut
		1684
		1685	sub find_by_path($) {
		1686	my ($path) = @_;
		1687
		1688	my ($match, $specificity);
		1689
		1690	for my $region (list) {
		1691	if ($region->{match} && $path =~ $region->{match}) {
		1692	($match, $specificity) = ($region, $region->specificity)
		1693	if $region->specificity > $specificity;
		1694	}
		1695	}
		1696
		1697	$match
		1698	}
1164		1699
1165	=back	1700	=back
1166
1167		1701
1168	=head3 cf::map	1702	=head3 cf::map
1169		1703
1170	=over 4	1704	=over 4
1171		1705
…		…
1174	package cf::map;	1708	package cf::map;
1175		1709
1176	use Fcntl;	1710	use Fcntl;
1177	use Coro::AIO;	1711	use Coro::AIO;
1178		1712
		1713	use overload
		1714	'""' => \&as_string,
		1715	fallback => 1;
		1716
1179	our $MAX_RESET = 3600;	1717	our $MAX_RESET = 3600;
1180	our $DEFAULT_RESET = 3000;	1718	our $DEFAULT_RESET = 3000;
1181		1719
1182	sub generate_random_map {	1720	sub generate_random_map {
1183	my ($path, $rmp) = @_;	1721	my ($self, $rmp) = @_;
		1722
		1723	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1184		1724
1185	# mit "rum" bekleckern, nicht	1725	# mit "rum" bekleckern, nicht
1186	cf::map::_create_random_map	1726	$self->_create_random_map (
1187	$path,
1188	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1727	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1189	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1728	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1190	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1729	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1191	$rmp->{exit_on_final_map},	1730	$rmp->{exit_on_final_map},
1192	$rmp->{xsize}, $rmp->{ysize},	1731	$rmp->{xsize}, $rmp->{ysize},
1193	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1732	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1194	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1733	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1195	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1734	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1196	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1735	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1197	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1736	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1198	(cf::region::find $rmp->{region})	1737	(cf::region::find $rmp->{region}), $rmp->{custom}
		1738	)
		1739	}
		1740
		1741	=item cf::map->register ($regex, $prio)
		1742
		1743	Register a handler for the map path matching the given regex at the
		1744	givne priority (higher is better, built-in handlers have priority 0, the
		1745	default).
		1746
		1747	=cut
		1748
		1749	sub register {
		1750	my (undef, $regex, $prio) = @_;
		1751	my $pkg = caller;
		1752
		1753	no strict;
		1754	push @{"$pkg\::ISA"}, __PACKAGE__;
		1755
		1756	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1757	}
		1758
		1759	# also paths starting with '/'
		1760	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1761
		1762	sub thawer_merge {
		1763	my ($self, $merge) = @_;
		1764
		1765	# we have to keep some variables in memory intact
		1766	local $self->{path};
		1767	local $self->{load_path};
		1768
		1769	$self->SUPER::thawer_merge ($merge);
		1770	}
		1771
		1772	sub normalise {
		1773	my ($path, $base) = @_;
		1774
		1775	$path = "$path"; # make sure its a string
		1776
		1777	$path =~ s/\.map$//;
		1778
		1779	# map plan:
		1780	#
		1781	# /! non-realised random map exit (special hack!)
		1782	# {... are special paths that are not being touched
		1783	# ?xxx/... are special absolute paths
		1784	# ?random/... random maps
		1785	# /... normal maps
		1786	# ~user/... per-player map of a specific user
		1787
		1788	$path =~ s/$PATH_SEP/\//go;
		1789
		1790	# treat it as relative path if it starts with
		1791	# something that looks reasonable
		1792	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1793	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1794
		1795	$base =~ s{[^/]+/?$}{};
		1796	$path = "$base/$path";
		1797	}
		1798
		1799	for ($path) {
		1800	redo if s{//}{/};
		1801	redo if s{/\.?/}{/};
		1802	redo if s{/[^/]+/\.\./}{/};
		1803	}
		1804
		1805	$path
		1806	}
		1807
		1808	sub new_from_path {
		1809	my (undef, $path, $base) = @_;
		1810
		1811	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1812
		1813	$path = normalise $path, $base;
		1814
		1815	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1816	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1817	my $self = bless cf::map::new, $pkg;
		1818	$self->{path} = $path; $self->path ($path);
		1819	$self->init; # pass $1 etc.
		1820	return $self;
		1821	}
		1822	}
		1823
		1824	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1825	()
		1826	}
		1827
		1828	sub init {
		1829	my ($self) = @_;
		1830
		1831	$self
		1832	}
		1833
		1834	sub as_string {
		1835	my ($self) = @_;
		1836
		1837	"$self->{path}"
		1838	}
		1839
		1840	# the displayed name, this is a one way mapping
		1841	sub visible_name {
		1842	&as_string
		1843	}
		1844
		1845	# the original (read-only) location
		1846	sub load_path {
		1847	my ($self) = @_;
		1848
		1849	"$MAPDIR/$self->{path}.map"
		1850	}
		1851
		1852	# the temporary/swap location
		1853	sub save_path {
		1854	my ($self) = @_;
		1855
		1856	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1857	"$TMPDIR/$path.map"
		1858	}
		1859
		1860	# the unique path, undef == no special unique path
		1861	sub uniq_path {
		1862	my ($self) = @_;
		1863
		1864	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1865	"$UNIQUEDIR/$path"
1199	}	1866	}
1200		1867
1201	# and all this just because we cannot iterate over	1868	# and all this just because we cannot iterate over
1202	# all maps in C++...	1869	# all maps in C++...
1203	sub change_all_map_light {	1870	sub change_all_map_light {
…		…
1205		1872
1206	$_->change_map_light ($change)	1873	$_->change_map_light ($change)
1207	for grep $_->outdoor, values %cf::MAP;	1874	for grep $_->outdoor, values %cf::MAP;
1208	}	1875	}
1209		1876
		1877	sub decay_objects {
		1878	my ($self) = @_;
		1879
		1880	return if $self->{deny_reset};
		1881
		1882	$self->do_decay_objects;
		1883	}
		1884
		1885	sub unlink_save {
		1886	my ($self) = @_;
		1887
		1888	utf8::encode (my $save = $self->save_path);
		1889	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1890	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1891	}
		1892
1210	sub try_load_header($) {	1893	sub load_header_from($) {
1211	my ($path) = @_;	1894	my ($self, $path) = @_;
1212		1895
1213	utf8::encode $path;	1896	utf8::encode $path;
1214	aio_open $path, O_RDONLY, 0	1897	my $f = new_from_file cf::object::thawer $path
1215	or return;	1898	or return;
1216		1899
1217	my $map = cf::map::new	1900	$self->_load_header ($f)
1218	or return;	1901	or return;
1219		1902
1220	# for better error messages only, will be overwritten	1903	local $MAP_LOADING{$self->{path}} = $self;
1221	$map->path ($path);	1904	$f->resolve_delayed_derefs;
1222		1905
1223	$map->load_header ($path)	1906	$self->{load_path} = $path;
		1907
		1908	1
		1909	}
		1910
		1911	sub load_header_orig {
		1912	my ($self) = @_;
		1913
		1914	$self->load_header_from ($self->load_path)
		1915	}
		1916
		1917	sub load_header_temp {
		1918	my ($self) = @_;
		1919
		1920	$self->load_header_from ($self->save_path)
		1921	}
		1922
		1923	sub prepare_temp {
		1924	my ($self) = @_;
		1925
		1926	$self->last_access ((delete $self->{last_access})
		1927	|| $cf::RUNTIME); #d#
		1928	# safety
		1929	$self->{instantiate_time} = $cf::RUNTIME
		1930	if $self->{instantiate_time} > $cf::RUNTIME;
		1931	}
		1932
		1933	sub prepare_orig {
		1934	my ($self) = @_;
		1935
		1936	$self->{load_original} = 1;
		1937	$self->{instantiate_time} = $cf::RUNTIME;
		1938	$self->last_access ($cf::RUNTIME);
		1939	$self->instantiate;
		1940	}
		1941
		1942	sub load_header {
		1943	my ($self) = @_;
		1944
		1945	if ($self->load_header_temp) {
		1946	$self->prepare_temp;
		1947	} else {
		1948	$self->load_header_orig
1224	or return;	1949	or return;
		1950	$self->prepare_orig;
		1951	}
1225		1952
1226	$map->{load_path} = $path;	1953	$self->{deny_reset} = 1
		1954	if $self->no_reset;
1227		1955
1228	$map	1956	$self->default_region (cf::region::find_by_path $self->{path})
		1957	unless $self->default_region;
		1958
		1959	1
1229	}	1960	}
1230		1961
1231	sub find;	1962	sub find;
1232	sub find {	1963	sub find {
1233	my ($path, $origin) = @_;	1964	my ($path, $origin) = @_;
1234		1965
1235	#warn "find<$path,$origin>\n";#d#
1236
1237	$path = new cf::path $path, $origin && $origin->path;	1966	$path = normalise $path, $origin && $origin->path;
1238	my $key = $path->as_string;
1239		1967
		1968	cf::lock_wait "map_data:$path";#d#remove
1240	cf::lock_wait "map_find:$key";	1969	cf::lock_wait "map_find:$path";
1241		1970
1242	$cf::MAP{$key} || do {	1971	$cf::MAP{$path} || do {
		1972	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1243	my $guard = cf::lock_acquire "map_find:$key";	1973	my $guard2 = cf::lock_acquire "map_find:$path";
1244		1974
1245	# do it the slow way	1975	my $map = new_from_path cf::map $path
1246	my $map = try_load_header $path->save_path;
1247
1248	Coro::cede;
1249
1250	if ($map) {
1251	$map->last_access ((delete $map->{last_access})
1252	|| $cf::RUNTIME); #d#
1253	# safety
1254	$map->{instantiate_time} = $cf::RUNTIME
1255	if $map->{instantiate_time} > $cf::RUNTIME;
1256	} else {
1257	if (my $rmp = $path->random_map_params) {
1258	$map = generate_random_map $key, $rmp;
1259	} else {
1260	$map = try_load_header $path->load_path;
1261	}
1262
1263	$map or return;	1976	or return;
1264		1977
1265	$map->{load_original} = 1;
1266	$map->{instantiate_time} = $cf::RUNTIME;
1267	$map->last_access ($cf::RUNTIME);
1268	$map->instantiate;
1269
1270	# per-player maps become, after loading, normal maps
1271	$map->per_player (0) if $path->{user_rel};
1272	}
1273
1274	$map->path ($key);
1275	$map->{path} = $path;
1276	$map->{last_save} = $cf::RUNTIME;	1978	$map->{last_save} = $cf::RUNTIME;
1277		1979
1278	Coro::cede;	1980	$map->load_header
		1981	or return;
1279		1982
1280	if ($map->should_reset) {	1983	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1984	# doing this can freeze the server in a sync job, obviously
		1985	#$cf::WAIT_FOR_TICK->wait;
		1986	undef $guard2;
		1987	undef $guard1;
1281	$map->reset;	1988	$map->reset;
1282	undef $guard;
1283	$map = find $path	1989	return find $path;
1284	or return;
1285	}	1990	}
1286		1991
1287	$cf::MAP{$key} = $map	1992	$cf::MAP{$path} = $map
1288	}	1993	}
1289	}	1994	}
		1995
		1996	sub pre_load { }
		1997	sub post_load { }
1290		1998
1291	sub load {	1999	sub load {
1292	my ($self) = @_;	2000	my ($self) = @_;
1293		2001
		2002	local $self->{deny_reset} = 1; # loading can take a long time
		2003
1294	my $path = $self->{path};	2004	my $path = $self->{path};
		2005
		2006	{
1295	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2007	my $guard = cf::lock_acquire "map_data:$path";
1296		2008
		2009	return unless $self->valid;
1297	return if $self->in_memory != cf::MAP_SWAPPED;	2010	return unless $self->in_memory == cf::MAP_SWAPPED;
1298		2011
1299	$self->in_memory (cf::MAP_LOADING);	2012	$self->in_memory (cf::MAP_LOADING);
1300		2013
1301	$self->alloc;	2014	$self->alloc;
1302	$self->load_objects ($self->{load_path}, 1)	2015
		2016	$self->pre_load;
		2017	cf::cede_to_tick;
		2018
		2019	my $f = new_from_file cf::object::thawer $self->{load_path};
		2020	$f->skip_block;
		2021	$self->_load_objects ($f)
1303	or return;	2022	or return;
1304		2023
1305	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2024	$self->post_load_original
1306	if delete $self->{load_original};	2025	if delete $self->{load_original};
1307		2026
1308	if (my $uniq = $path->uniq_path) {	2027	if (my $uniq = $self->uniq_path) {
1309	utf8::encode $uniq;	2028	utf8::encode $uniq;
1310	if (aio_open $uniq, O_RDONLY, 0) {	2029	unless (aio_stat $uniq) {
		2030	if (my $f = new_from_file cf::object::thawer $uniq) {
1311	$self->clear_unique_items;	2031	$self->clear_unique_items;
1312	$self->load_objects ($uniq, 0);	2032	$self->_load_objects ($f);
		2033	$f->resolve_delayed_derefs;
		2034	}
1313	}	2035	}
1314	}	2036	}
1315		2037
1316	Coro::cede;	2038	$f->resolve_delayed_derefs;
1317		2039
		2040	cf::cede_to_tick;
1318	# now do the right thing for maps	2041	# now do the right thing for maps
1319	$self->link_multipart_objects;	2042	$self->link_multipart_objects;
1320
1321	if ($self->{path}->is_style_map) {
1322	$self->{deny_save} = 1;
1323	$self->{deny_reset} = 1;
1324	} else {
1325	$self->fix_auto_apply;
1326	$self->decay_objects;
1327	$self->update_buttons;
1328	$self->set_darkness_map;
1329	$self->difficulty ($self->estimate_difficulty)	2043	$self->difficulty ($self->estimate_difficulty)
1330	unless $self->difficulty;	2044	unless $self->difficulty;
		2045	cf::cede_to_tick;
		2046
		2047	unless ($self->{deny_activate}) {
		2048	$self->decay_objects;
		2049	$self->fix_auto_apply;
		2050	$self->update_buttons;
		2051	cf::cede_to_tick;
		2052	$self->set_darkness_map;
		2053	cf::cede_to_tick;
1331	$self->activate;	2054	$self->activate;
1332	}	2055	}
1333		2056
1334	Coro::cede;	2057	$self->{last_save} = $cf::RUNTIME;
		2058	$self->last_access ($cf::RUNTIME);
1335		2059
1336	$self->in_memory (cf::MAP_IN_MEMORY);	2060	$self->in_memory (cf::MAP_ACTIVE);
		2061	}
		2062
		2063	$self->post_load;
		2064	}
		2065
		2066	sub customise_for {
		2067	my ($self, $ob) = @_;
		2068
		2069	return find "~" . $ob->name . "/" . $self->{path}
		2070	if $self->per_player;
		2071
		2072	# return find "?party/" . $ob->name . "/" . $self->{path}
		2073	# if $self->per_party;
		2074
		2075	$self
		2076	}
		2077
		2078	# find and load all maps in the 3x3 area around a map
		2079	sub load_neighbours {
		2080	my ($map) = @_;
		2081
		2082	my @neigh; # diagonal neighbours
		2083
		2084	for (0 .. 3) {
		2085	my $neigh = $map->tile_path ($_)
		2086	or next;
		2087	$neigh = find $neigh, $map
		2088	or next;
		2089	$neigh->load;
		2090
		2091	push @neigh,
		2092	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2093	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2094	}
		2095
		2096	for (grep defined $_->[0], @neigh) {
		2097	my ($path, $origin) = @$_;
		2098	my $neigh = find $path, $origin
		2099	or next;
		2100	$neigh->load;
		2101	}
1337	}	2102	}
1338		2103
1339	sub find_sync {	2104	sub find_sync {
1340	my ($path, $origin) = @_;	2105	my ($path, $origin) = @_;
1341		2106
1342	cf::sync_job { cf::map::find $path, $origin }	2107	cf::sync_job { find $path, $origin }
1343	}	2108	}
1344		2109
1345	sub do_load_sync {	2110	sub do_load_sync {
1346	my ($map) = @_;	2111	my ($map) = @_;
1347		2112
		2113	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2114	if $Coro::current == $Coro::main;
		2115
1348	cf::sync_job { $map->load };	2116	cf::sync_job { $map->load };
		2117	}
		2118
		2119	our %MAP_PREFETCH;
		2120	our $MAP_PREFETCHER = undef;
		2121
		2122	sub find_async {
		2123	my ($path, $origin, $load) = @_;
		2124
		2125	$path = normalise $path, $origin && $origin->{path};
		2126
		2127	if (my $map = $cf::MAP{$path}) {
		2128	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2129	}
		2130
		2131	$MAP_PREFETCH{$path} |= $load;
		2132
		2133	$MAP_PREFETCHER ||= cf::async {
		2134	$Coro::current->{desc} = "map prefetcher";
		2135
		2136	while (%MAP_PREFETCH) {
		2137	while (my ($k, $v) = each %MAP_PREFETCH) {
		2138	if (my $map = find $k) {
		2139	$map->load if $v;
		2140	}
		2141
		2142	delete $MAP_PREFETCH{$k};
		2143	}
		2144	}
		2145	undef $MAP_PREFETCHER;
		2146	};
		2147	$MAP_PREFETCHER->prio (6);
		2148
		2149	()
1349	}	2150	}
1350		2151
1351	sub save {	2152	sub save {
1352	my ($self) = @_;	2153	my ($self) = @_;
1353		2154
1354	my $lock = cf::lock_acquire "map_data:" . $self->path;	2155	my $lock = cf::lock_acquire "map_data:$self->{path}";
1355		2156
1356	$self->{last_save} = $cf::RUNTIME;	2157	$self->{last_save} = $cf::RUNTIME;
1357		2158
1358	return unless $self->dirty;	2159	return unless $self->dirty;
1359		2160
1360	my $save = $self->{path}->save_path; utf8::encode $save;	2161	my $save = $self->save_path; utf8::encode $save;
1361	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2162	my $uniq = $self->uniq_path; utf8::encode $uniq;
1362		2163
1363	$self->{load_path} = $save;	2164	$self->{load_path} = $save;
1364		2165
1365	return if $self->{deny_save};	2166	return if $self->{deny_save};
1366		2167
1367	local $self->{last_access} = $self->last_access;#d#	2168	local $self->{last_access} = $self->last_access;#d#
1368		2169
1369	cf::async {	2170	cf::async {
		2171	$Coro::current->{desc} = "map player save";
1370	$_->contr->save for $self->players;	2172	$_->contr->save for $self->players;
1371	};	2173	};
1372		2174
		2175	cf::get_slot 0.02;
		2176
1373	if ($uniq) {	2177	if ($uniq) {
1374	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2178	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1375	$self->save_objects ($uniq, cf::IO_UNIQUES);	2179	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1376	} else {	2180	} else {
1377	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2181	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1378	}	2182	}
1379	}	2183	}
1380		2184
1381	sub swap_out {	2185	sub swap_out {
1382	my ($self) = @_;	2186	my ($self) = @_;
1383		2187
1384	# save first because save cedes	2188	# save first because save cedes
1385	$self->save;	2189	$self->save;
1386		2190
1387	my $lock = cf::lock_acquire "map_data:" . $self->path;	2191	my $lock = cf::lock_acquire "map_data:$self->{path}";
1388		2192
1389	return if $self->players;	2193	return if $self->players;
1390	return if $self->in_memory != cf::MAP_IN_MEMORY;	2194	return if $self->in_memory != cf::MAP_ACTIVE;
1391	return if $self->{deny_save};	2195	return if $self->{deny_save};
1392		2196
		2197	$self->in_memory (cf::MAP_SWAPPED);
		2198
		2199	$self->deactivate;
		2200	$_->clear_links_to ($self) for values %cf::MAP;
1393	$self->clear;	2201	$self->clear;
1394	$self->in_memory (cf::MAP_SWAPPED);
1395	}	2202	}
1396		2203
1397	sub reset_at {	2204	sub reset_at {
1398	my ($self) = @_;	2205	my ($self) = @_;
1399		2206
1400	# TODO: safety, remove and allow resettable per-player maps	2207	# TODO: safety, remove and allow resettable per-player maps
1401	return 1e99 if $self->{path}{user_rel};
1402	return 1e99 if $self->{deny_reset};	2208	return 1e99 if $self->{deny_reset};
1403		2209
1404	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2210	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1405	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2211	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1406		2212
…		…
1411	my ($self) = @_;	2217	my ($self) = @_;
1412		2218
1413	$self->reset_at <= $cf::RUNTIME	2219	$self->reset_at <= $cf::RUNTIME
1414	}	2220	}
1415		2221
1416	sub unlink_save {
1417	my ($self) = @_;
1418
1419	utf8::encode (my $save = $self->{path}->save_path);
1420	aioreq_pri 3; IO::AIO::aio_unlink $save;
1421	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1422	}
1423
1424	sub rename {
1425	my ($self, $new_path) = @_;
1426
1427	$self->unlink_save;
1428
1429	delete $cf::MAP{$self->path};
1430	$self->{path} = new cf::path $new_path;
1431	$self->path ($self->{path}->as_string);
1432	$cf::MAP{$self->path} = $self;
1433
1434	$self->save;
1435	}
1436
1437	sub reset {	2222	sub reset {
1438	my ($self) = @_;	2223	my ($self) = @_;
1439		2224
1440	my $lock = cf::lock_acquire "map_data:" . $self->path;	2225	my $lock = cf::lock_acquire "map_data:$self->{path}";
1441		2226
1442	return if $self->players;	2227	return if $self->players;
1443	return if $self->{path}{user_rel};#d#
1444		2228
1445	warn "resetting map ", $self->path;#d#	2229	warn "resetting map ", $self->path;
		2230
		2231	$self->in_memory (cf::MAP_SWAPPED);
		2232
		2233	# need to save uniques path
		2234	unless ($self->{deny_save}) {
		2235	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2236
		2237	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2238	if $uniq;
		2239	}
1446		2240
1447	delete $cf::MAP{$self->path};	2241	delete $cf::MAP{$self->path};
1448		2242
		2243	$self->deactivate;
1449	$_->clear_links_to ($self) for values %cf::MAP;	2244	$_->clear_links_to ($self) for values %cf::MAP;
		2245	$self->clear;
1450		2246
1451	$self->unlink_save;	2247	$self->unlink_save;
1452	$self->destroy;	2248	$self->destroy;
1453	}	2249	}
1454		2250
1455	my $nuke_counter = "aaaa";	2251	my $nuke_counter = "aaaa";
1456		2252
1457	sub nuke {	2253	sub nuke {
1458	my ($self) = @_;	2254	my ($self) = @_;
1459		2255
		2256	{
		2257	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2258
		2259	delete $cf::MAP{$self->path};
		2260
		2261	$self->unlink_save;
		2262
		2263	bless $self, "cf::map";
		2264	delete $self->{deny_reset};
1460	$self->{deny_save} = 1;	2265	$self->{deny_save} = 1;
1461	$self->reset_timeout (1);	2266	$self->reset_timeout (1);
1462	$self->rename ("{nuke}/" . ($nuke_counter++));	2267	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2268
		2269	$cf::MAP{$self->path} = $self;
		2270	}
		2271
1463	$self->reset; # polite request, might not happen	2272	$self->reset; # polite request, might not happen
1464	}	2273	}
1465		2274
1466	sub customise_for {	2275	=item $maps = cf::map::tmp_maps
1467	my ($map, $ob) = @_;
1468		2276
1469	if ($map->per_player) {	2277	Returns an arrayref with all map paths of currently instantiated and saved
1470	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2278	maps. May block.
		2279
		2280	=cut
		2281
		2282	sub tmp_maps() {
1471	}	2283	[
1472		2284	map {
1473	$map	2285	utf8::decode $_;
		2286	/\.map$/
		2287	? normalise $_
		2288	: ()
		2289	} @{ aio_readdir $TMPDIR or [] }
		2290	]
1474	}	2291	}
1475		2292
1476	sub emergency_save {	2293	=item $maps = cf::map::random_maps
1477	my $freeze_guard = cf::freeze_mainloop;
1478		2294
1479	warn "enter emergency map save\n";	2295	Returns an arrayref with all map paths of currently instantiated and saved
		2296	random maps. May block.
1480		2297
1481	cf::sync_job {	2298	=cut
1482	warn "begin emergency map save\n";	2299
1483	$_->save for values %cf::MAP;	2300	sub random_maps() {
		2301	[
		2302	map {
		2303	utf8::decode $_;
		2304	/\.map$/
		2305	? normalise "?random/$_"
		2306	: ()
		2307	} @{ aio_readdir $RANDOMDIR or [] }
		2308	]
		2309	}
		2310
		2311	=item cf::map::unique_maps
		2312
		2313	Returns an arrayref of paths of all shared maps that have
		2314	instantiated unique items. May block.
		2315
		2316	=cut
		2317
		2318	sub unique_maps() {
		2319	[
		2320	map {
		2321	utf8::decode $_;
		2322	s/\.map$//; # TODO future compatibility hack
		2323	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2324	? ()
		2325	: normalise $_
		2326	} @{ aio_readdir $UNIQUEDIR or [] }
		2327	]
		2328	}
		2329
		2330	=back
		2331
		2332	=head3 cf::object
		2333
		2334	=cut
		2335
		2336	package cf::object;
		2337
		2338	=over 4
		2339
		2340	=item $ob->inv_recursive
		2341
		2342	Returns the inventory of the object I<and> their inventories, recursively,
		2343	but I<not> the object itself.
		2344
		2345	=cut
		2346
		2347	sub inv_recursive_;
		2348	sub inv_recursive_ {
		2349	map { $_, inv_recursive_ $_->inv } @_
		2350	}
		2351
		2352	sub inv_recursive {
		2353	inv_recursive_ inv $_[0]
		2354	}
		2355
		2356	=item $ref = $ob->ref
		2357
		2358	Creates and returns a persistent reference to an object that can be stored as a string.
		2359
		2360	=item $ob = cf::object::deref ($refstring)
		2361
		2362	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2363	even if the object actually exists. May block.
		2364
		2365	=cut
		2366
		2367	sub deref {
		2368	my ($ref) = @_;
		2369
		2370	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2371	my ($uuid, $name) = ($1, $2);
		2372	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2373	or return;
		2374	$pl->ob->uuid eq $uuid
		2375	or return;
		2376
		2377	$pl->ob
		2378	} else {
		2379	warn "$ref: cannot resolve object reference\n";
		2380	undef
1484	};	2381	}
1485
1486	warn "end emergency map save\n";
1487	}	2382	}
1488		2383
1489	package cf;	2384	package cf;
1490		2385
1491	=back	2386	=back
1492
1493		2387
1494	=head3 cf::object::player	2388	=head3 cf::object::player
1495		2389
1496	=over 4	2390	=over 4
1497		2391
…		…
1500	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2394	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1501	can be C<undef>. Does the right thing when the player is currently in a	2395	can be C<undef>. Does the right thing when the player is currently in a
1502	dialogue with the given NPC character.	2396	dialogue with the given NPC character.
1503		2397
1504	=cut	2398	=cut
		2399
		2400	our $SAY_CHANNEL = {
		2401	id => "say",
		2402	title => "Map",
		2403	reply => "say ",
		2404	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2405	};
		2406
		2407	our $CHAT_CHANNEL = {
		2408	id => "chat",
		2409	title => "Chat",
		2410	reply => "chat ",
		2411	tooltip => "Player chat and shouts, global to the server.",
		2412	};
1505		2413
1506	# rough implementation of a future "reply" method that works	2414	# rough implementation of a future "reply" method that works
1507	# with dialog boxes.	2415	# with dialog boxes.
1508	#TODO: the first argument must go, split into a $npc->reply_to ( method	2416	#TODO: the first argument must go, split into a $npc->reply_to ( method
1509	sub cf::object::player::reply($$$;$) {	2417	sub cf::object::player::reply($$$;$) {
…		…
1511		2419
1512	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2420	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1513		2421
1514	if ($self->{record_replies}) {	2422	if ($self->{record_replies}) {
1515	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2423	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2424
1516	} else {	2425	} else {
		2426	my $pl = $self->contr;
		2427
		2428	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2429	my $dialog = $pl->{npc_dialog};
		2430	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2431
		2432	} else {
1517	$msg = $npc->name . " says: $msg" if $npc;	2433	$msg = $npc->name . " says: $msg" if $npc;
1518	$self->message ($msg, $flags);	2434	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2435	}
1519	}	2436	}
		2437	}
		2438
		2439	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2440
		2441	=cut
		2442
		2443	sub cf::object::send_msg {
		2444	my $pl = shift->contr
		2445	or return;
		2446	$pl->send_msg (@_);
1520	}	2447	}
1521		2448
1522	=item $player_object->may ("access")	2449	=item $player_object->may ("access")
1523		2450
1524	Returns wether the given player is authorized to access resource "access"	2451	Returns wether the given player is authorized to access resource "access"
…		…
1537		2464
1538	=item $player_object->enter_link	2465	=item $player_object->enter_link
1539		2466
1540	Freezes the player and moves him/her to a special map (C<{link}>).	2467	Freezes the player and moves him/her to a special map (C<{link}>).
1541		2468
1542	The player should be reaosnably safe there for short amounts of time. You	2469	The player should be reasonably safe there for short amounts of time (e.g.
1543	I<MUST> call C<leave_link> as soon as possible, though.	2470	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2471	though, as the palyer cannot control the character while it is on the link
		2472	map.
		2473
		2474	Will never block.
1544		2475
1545	=item $player_object->leave_link ($map, $x, $y)	2476	=item $player_object->leave_link ($map, $x, $y)
1546		2477
1547	Moves the player out of the specila link map onto the given map. If the	2478	Moves the player out of the special C<{link}> map onto the specified
1548	map is not valid (or omitted), the player will be moved back to the	2479	map. If the map is not valid (or omitted), the player will be moved back
1549	location he/she was before the call to C<enter_link>, or, if that fails,	2480	to the location he/she was before the call to C<enter_link>, or, if that
1550	to the emergency map position.	2481	fails, to the emergency map position.
1551		2482
1552	Might block.	2483	Might block.
1553		2484
1554	=cut	2485	=cut
		2486
		2487	sub link_map {
		2488	unless ($LINK_MAP) {
		2489	$LINK_MAP = cf::map::find "{link}"
		2490	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2491	$LINK_MAP->load;
		2492	}
		2493
		2494	$LINK_MAP
		2495	}
1555		2496
1556	sub cf::object::player::enter_link {	2497	sub cf::object::player::enter_link {
1557	my ($self) = @_;	2498	my ($self) = @_;
1558		2499
1559	$self->deactivate_recursive;	2500	$self->deactivate_recursive;
1560		2501
1561	return if $self->map == $LINK_MAP;	2502	return if UNIVERSAL::isa $self->map, "ext::map_link";
1562		2503
1563	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2504	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1564	if $self->map;	2505	if $self->map && $self->map->{path} ne "{link}";
1565		2506
1566	$self->enter_map ($LINK_MAP, 20, 20);	2507	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1567	}	2508	}
1568		2509
1569	sub cf::object::player::leave_link {	2510	sub cf::object::player::leave_link {
1570	my ($self, $map, $x, $y) = @_;	2511	my ($self, $map, $x, $y) = @_;
		2512
		2513	return unless $self->contr->active;
1571		2514
1572	my $link_pos = delete $self->{_link_pos};	2515	my $link_pos = delete $self->{_link_pos};
1573		2516
1574	unless ($map) {	2517	unless ($map) {
1575	# restore original map position	2518	# restore original map position
…		…
1589	# use -1 or undef as default coordinates, not 0, 0	2532	# use -1 or undef as default coordinates, not 0, 0
1590	($x, $y) = ($map->enter_x, $map->enter_y)	2533	($x, $y) = ($map->enter_x, $map->enter_y)
1591	if $x <=0 && $y <= 0;	2534	if $x <=0 && $y <= 0;
1592		2535
1593	$map->load;	2536	$map->load;
		2537	$map->load_neighbours;
1594		2538
1595	return unless $self->contr->active;	2539	return unless $self->contr->active;
		2540	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1596	$self->activate_recursive;	2541	$self->activate_recursive;
		2542
		2543	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1597	$self->enter_map ($map, $x, $y);	2544	$self->enter_map ($map, $x, $y);
1598	}	2545	}
1599		2546
1600	cf::player->attach (	2547	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1601	on_logout => sub {
1602	my ($pl) = @_;
1603		2548
1604	# abort map switching before logout	2549	Moves the player to the given map-path and coordinates by first freezing
1605	if ($pl->ob->{_link_pos}) {	2550	her, loading and preparing them map, calling the provided $check callback
1606	cf::sync_job {	2551	that has to return the map if sucecssful, and then unfreezes the player on
1607	$pl->ob->leave_link	2552	the new (success) or old (failed) map position. In either case, $done will
1608	};	2553	be called at the end of this process.
1609	}
1610	},
1611	on_login => sub {
1612	my ($pl) = @_;
1613		2554
1614	# try to abort aborted map switching on player login :)	2555	Note that $check will be called with a potentially non-loaded map, so if
1615	# should happen only on crashes	2556	it needs a loaded map it has to call C<< ->load >>.
1616	if ($pl->ob->{_link_pos}) {
1617	$pl->ob->enter_link;
1618	(async {
1619	# we need this sleep as the login has a concurrent enter_exit running
1620	# and this sleep increases chances of the player not ending up in scorn
1621	$pl->ob->reply (undef,
1622	"There was an internal problem at your last logout, "
1623	. "the server will try to bring you to your intended destination in a second.",
1624	cf::NDI_RED);
1625	Coro::Timer::sleep 1;
1626	$pl->ob->leave_link;
1627	})->prio (2);
1628	}
1629	},
1630	);
1631		2557
1632	=item $player_object->goto ($path, $x, $y)
1633
1634	=cut	2558	=cut
		2559
		2560	our $GOTOGEN;
1635		2561
1636	sub cf::object::player::goto {	2562	sub cf::object::player::goto {
1637	my ($self, $path, $x, $y) = @_;	2563	my ($self, $path, $x, $y, $check, $done) = @_;
		2564
		2565	# do generation counting so two concurrent goto's will be executed in-order
		2566	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1638		2567
1639	$self->enter_link;	2568	$self->enter_link;
1640		2569
1641	(async {	2570	(async {
1642	$path = new cf::path $path;	2571	$Coro::current->{desc} = "player::goto $path $x $y";
1643		2572
1644	my $map = cf::map::find $path->as_string;	2573	# *tag paths override both path and x|y
		2574	if ($path =~ /^\*(.*)$/) {
		2575	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2576	my $ob = $obs[rand @obs];
		2577
		2578	# see if we actually can go there
		2579	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2580	$ob = $obs[rand @obs];
		2581	} else {
		2582	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2583	}
		2584	# else put us there anyways for now #d#
		2585
		2586	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2587	} else {
		2588	($path, $x, $y) = (undef, undef, undef);
		2589	}
		2590	}
		2591
		2592	my $map = eval {
		2593	my $map = defined $path ? cf::map::find $path : undef;
		2594
		2595	if ($map) {
1645	$map = $map->customise_for ($self) if $map;	2596	$map = $map->customise_for ($self);
1646		2597	$map = $check->($map) if $check && $map;
1647	# warn "entering ", $map->path, " at ($x, $y)\n"	2598	} else {
1648	# if $map;
1649
1650	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2599	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
1651		2601
		2602	$map
		2603	};
		2604
		2605	if ($@) {
		2606	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2607	LOG llevError | logBacktrace, Carp::longmess $@;
		2608	}
		2609
		2610	if ($gen == $self->{_goto_generation}) {
		2611	delete $self->{_goto_generation};
1652	$self->leave_link ($map, $x, $y);	2612	$self->leave_link ($map, $x, $y);
		2613	}
		2614
		2615	$done->() if $done;
1653	})->prio (1);	2616	})->prio (1);
1654	}	2617	}
1655		2618
1656	=item $player_object->enter_exit ($exit_object)	2619	=item $player_object->enter_exit ($exit_object)
1657		2620
…		…
1659		2622
1660	sub parse_random_map_params {	2623	sub parse_random_map_params {
1661	my ($spec) = @_;	2624	my ($spec) = @_;
1662		2625
1663	my $rmp = { # defaults	2626	my $rmp = { # defaults
1664	xsize => 10,	2627	xsize => (cf::rndm 15, 40),
1665	ysize => 10,	2628	ysize => (cf::rndm 15, 40),
		2629	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2630	#layout => string,
1666	};	2631	};
1667		2632
1668	for (split /\n/, $spec) {	2633	for (split /\n/, $spec) {
1669	my ($k, $v) = split /\s+/, $_, 2;	2634	my ($k, $v) = split /\s+/, $_, 2;
1670		2635
…		…
1682	# that depends on the exit object	2647	# that depends on the exit object
1683		2648
1684	my $rmp = parse_random_map_params $exit->msg;	2649	my $rmp = parse_random_map_params $exit->msg;
1685		2650
1686	if ($exit->map) {	2651	if ($exit->map) {
1687	$rmp->{region} = $exit->map->region_name;	2652	$rmp->{region} = $exit->region->name;
1688	$rmp->{origin_map} = $exit->map->path;	2653	$rmp->{origin_map} = $exit->map->path;
1689	$rmp->{origin_x} = $exit->x;	2654	$rmp->{origin_x} = $exit->x;
1690	$rmp->{origin_y} = $exit->y;	2655	$rmp->{origin_y} = $exit->y;
		2656
		2657	$exit->map->touch;
1691	}	2658	}
1692		2659
1693	$rmp->{random_seed} ||= $exit->random_seed;	2660	$rmp->{random_seed} ||= $exit->random_seed;
1694		2661
1695	my $data = cf::to_json $rmp;	2662	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1696	my $md5 = Digest::MD5::md5_hex $data;	2663	my $md5 = Digest::MD5::md5_hex $data;
		2664	my $meta = "$RANDOMDIR/$md5.meta";
1697		2665
1698	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2666	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1699	aio_write $fh, 0, (length $data), $data, 0;	2667	aio_write $fh, 0, (length $data), $data, 0;
		2668	undef $fh;
		2669	aio_rename "$meta~", $meta;
1700		2670
		2671	my $slaying = "?random/$md5";
		2672
		2673	if ($exit->valid) {
1701	$exit->slaying ("?random/$md5");	2674	$exit->slaying ("?random/$md5");
1702	$exit->msg (undef);	2675	$exit->msg (undef);
		2676	}
1703	}	2677	}
1704	}	2678	}
1705		2679
1706	sub cf::object::player::enter_exit {	2680	sub cf::object::player::enter_exit {
1707	my ($self, $exit) = @_;	2681	my ($self, $exit) = @_;
…		…
1709	return unless $self->type == cf::PLAYER;	2683	return unless $self->type == cf::PLAYER;
1710		2684
1711	$self->enter_link;	2685	$self->enter_link;
1712		2686
1713	(async {	2687	(async {
1714	$self->deactivate_recursive; # just to be sure	2688	$Coro::current->{desc} = "enter_exit";
		2689
1715	unless (eval {	2690	unless (eval {
		2691	$self->deactivate_recursive; # just to be sure
		2692
		2693	# random map handling
		2694	{
		2695	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2696
1716	prepare_random_map $exit	2697	prepare_random_map $exit
1717	if $exit->slaying eq "/!";	2698	if $exit->slaying eq "/!";
		2699	}
1718		2700
1719	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2701	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1720	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2702	my $x = $exit->stats->hp;
		2703	my $y = $exit->stats->sp;
1721		2704
		2705	$self->goto ($map, $x, $y);
		2706
		2707	# if exit is damned, update players death & WoR home-position
		2708	$self->contr->savebed ($map, $x, $y)
		2709	if $exit->flag (cf::FLAG_DAMNED);
		2710
1722	1;	2711	1
1723	}) {	2712	}) {
1724	$self->message ("Something went wrong deep within the crossfire server. "	2713	$self->message ("Something went wrong deep within the deliantra server. "
1725	. "I'll try to bring you back to the map you were before. "	2714	. "I'll try to bring you back to the map you were before. "
1726	. "Please report this to the dungeon master",	2715	. "Please report this to the dungeon master!",
1727	cf::NDI_UNIQUE | cf::NDI_RED);	2716	cf::NDI_UNIQUE | cf::NDI_RED);
1728		2717
1729	warn "ERROR in enter_exit: $@";	2718	warn "ERROR in enter_exit: $@";
1730	$self->leave_link;	2719	$self->leave_link;
1731	}	2720	}
1732	})->prio (1);	2721	})->prio (1);
…		…
1745		2734
1746	sub cf::client::send_drawinfo {	2735	sub cf::client::send_drawinfo {
1747	my ($self, $text, $flags) = @_;	2736	my ($self, $text, $flags) = @_;
1748		2737
1749	utf8::encode $text;	2738	utf8::encode $text;
1750	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2739	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1751	}	2740	}
1752		2741
		2742	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2743
		2744	Send a drawinfo or msg packet to the client, formatting the msg for the
		2745	client if neccessary. C<$type> should be a string identifying the type of
		2746	the message, with C<log> being the default. If C<$color> is negative, suppress
		2747	the message unless the client supports the msg packet.
		2748
		2749	=cut
		2750
		2751	# non-persistent channels (usually the info channel)
		2752	our %CHANNEL = (
		2753	"c/identify" => {
		2754	id => "infobox",
		2755	title => "Identify",
		2756	reply => undef,
		2757	tooltip => "Items recently identified",
		2758	},
		2759	"c/examine" => {
		2760	id => "infobox",
		2761	title => "Examine",
		2762	reply => undef,
		2763	tooltip => "Signs and other items you examined",
		2764	},
		2765	"c/book" => {
		2766	id => "infobox",
		2767	title => "Book",
		2768	reply => undef,
		2769	tooltip => "The contents of a note or book",
		2770	},
		2771	"c/lookat" => {
		2772	id => "infobox",
		2773	title => "Look",
		2774	reply => undef,
		2775	tooltip => "What you saw there",
		2776	},
		2777	"c/who" => {
		2778	id => "infobox",
		2779	title => "Players",
		2780	reply => undef,
		2781	tooltip => "Shows players who are currently online",
		2782	},
		2783	"c/body" => {
		2784	id => "infobox",
		2785	title => "Body Parts",
		2786	reply => undef,
		2787	tooltip => "Shows which body parts you posess and are available",
		2788	},
		2789	"c/uptime" => {
		2790	id => "infobox",
		2791	title => "Uptime",
		2792	reply => undef,
		2793	tooltip => "How long the server has been running since last restart",
		2794	},
		2795	"c/mapinfo" => {
		2796	id => "infobox",
		2797	title => "Map Info",
		2798	reply => undef,
		2799	tooltip => "Information related to the maps",
		2800	},
		2801	"c/party" => {
		2802	id => "party",
		2803	title => "Party",
		2804	reply => "gsay ",
		2805	tooltip => "Messages and chat related to your party",
		2806	},
		2807	);
		2808
		2809	sub cf::client::send_msg {
		2810	my ($self, $channel, $msg, $color, @extra) = @_;
		2811
		2812	$msg = $self->pl->expand_cfpod ($msg)
		2813	unless $color & cf::NDI_VERBATIM;
		2814
		2815	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2816
		2817	# check predefined channels, for the benefit of C
		2818	if ($CHANNEL{$channel}) {
		2819	$channel = $CHANNEL{$channel};
		2820
		2821	$self->ext_msg (channel_info => $channel)
		2822	if $self->can_msg;
		2823
		2824	$channel = $channel->{id};
		2825
		2826	} elsif (ref $channel) {
		2827	# send meta info to client, if not yet sent
		2828	unless (exists $self->{channel}{$channel->{id}}) {
		2829	$self->{channel}{$channel->{id}} = $channel;
		2830	$self->ext_msg (channel_info => $channel)
		2831	if $self->can_msg;
		2832	}
		2833
		2834	$channel = $channel->{id};
		2835	}
		2836
		2837	return unless @extra || length $msg;
		2838
		2839	if ($self->can_msg) {
		2840	# default colour, mask it out
		2841	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2842	if $color & cf::NDI_DEF;
		2843
		2844	my $pkt = "msg "
		2845	. $self->{json_coder}->encode (
		2846	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2847	);
		2848
		2849	# try lzf for large packets
		2850	$pkt = "lzf " . Compress::LZF::compress $pkt
		2851	if 1024 <= length $pkt and $self->{can_lzf};
		2852
		2853	# split very large packets
		2854	if (8192 < length $pkt and $self->{can_lzf}) {
		2855	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2856	$pkt = "frag";
		2857	}
		2858
		2859	$self->send_packet ($pkt);
		2860	} else {
		2861	if ($color >= 0) {
		2862	# replace some tags by gcfclient-compatible ones
		2863	for ($msg) {
		2864	1 while
		2865	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2866	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2867	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2868	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2869	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2870	}
		2871
		2872	$color &= cf::NDI_COLOR_MASK;
		2873
		2874	utf8::encode $msg;
		2875
		2876	if (0 && $msg =~ /\[/) {
		2877	# COMMAND/INFO
		2878	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2879	} else {
		2880	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2881	$self->send_packet ("drawinfo $color $msg")
		2882	}
		2883	}
		2884	}
		2885	}
		2886
		2887	=item $client->ext_msg ($type, @msg)
		2888
		2889	Sends an ext event to the client.
		2890
		2891	=cut
		2892
		2893	sub cf::client::ext_msg($$@) {
		2894	my ($self, $type, @msg) = @_;
		2895
		2896	if ($self->extcmd == 2) {
		2897	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2898	} elsif ($self->extcmd == 1) { # TODO: remove
		2899	push @msg, msgtype => "event_$type";
		2900	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2901	}
		2902	}
		2903
		2904	=item $client->ext_reply ($msgid, @msg)
		2905
		2906	Sends an ext reply to the client.
		2907
		2908	=cut
		2909
		2910	sub cf::client::ext_reply($$@) {
		2911	my ($self, $id, @msg) = @_;
		2912
		2913	if ($self->extcmd == 2) {
		2914	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2915	} elsif ($self->extcmd == 1) {
		2916	#TODO: version 1, remove
		2917	unshift @msg, msgtype => "reply", msgid => $id;
		2918	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2919	}
		2920	}
1753		2921
1754	=item $success = $client->query ($flags, "text", \&cb)	2922	=item $success = $client->query ($flags, "text", \&cb)
1755		2923
1756	Queues a query to the client, calling the given callback with	2924	Queues a query to the client, calling the given callback with
1757	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2925	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1758	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2926	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1759		2927
1760	Queries can fail, so check the return code. Or don't, as queries will become	2928	Queries can fail, so check the return code. Or don't, as queries will
1761	reliable at some point in the future.	2929	become reliable at some point in the future.
1762		2930
1763	=cut	2931	=cut
1764		2932
1765	sub cf::client::query {	2933	sub cf::client::query {
1766	my ($self, $flags, $text, $cb) = @_;	2934	my ($self, $flags, $text, $cb) = @_;
…		…
1774	utf8::encode $text;	2942	utf8::encode $text;
1775	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2943	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1776		2944
1777	$self->send_packet ($self->{query_queue}[0][0])	2945	$self->send_packet ($self->{query_queue}[0][0])
1778	if @{ $self->{query_queue} } == 1;	2946	if @{ $self->{query_queue} } == 1;
		2947
		2948	1
1779	}	2949	}
1780		2950
1781	cf::client->attach (	2951	cf::client->attach (
		2952	on_connect => sub {
		2953	my ($ns) = @_;
		2954
		2955	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2956	},
1782	on_reply => sub {	2957	on_reply => sub {
1783	my ($ns, $msg) = @_;	2958	my ($ns, $msg) = @_;
1784		2959
1785	# this weird shuffling is so that direct followup queries	2960	# this weird shuffling is so that direct followup queries
1786	# get handled first	2961	# get handled first
1787	my $queue = delete $ns->{query_queue}	2962	my $queue = delete $ns->{query_queue}
1788	or return; # be conservative, not sure how that can happen, but we saw a crash here	2963	or return; # be conservative, not sure how that can happen, but we saw a crash here
1789		2964
1790	(shift @$queue)->[1]->($msg);	2965	(shift @$queue)->[1]->($msg);
		2966	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1791		2967
1792	push @{ $ns->{query_queue} }, @$queue;	2968	push @{ $ns->{query_queue} }, @$queue;
1793		2969
1794	if (@{ $ns->{query_queue} } == @$queue) {	2970	if (@{ $ns->{query_queue} } == @$queue) {
1795	if (@$queue) {	2971	if (@$queue) {
…		…
1797	} else {	2973	} else {
1798	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2974	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1799	}	2975	}
1800	}	2976	}
1801	},	2977	},
		2978	on_exticmd => sub {
		2979	my ($ns, $buf) = @_;
		2980
		2981	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2982
		2983	if (ref $msg) {
		2984	my ($type, $reply, @payload) =
		2985	"ARRAY" eq ref $msg
		2986	? @$msg
		2987	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2988
		2989	my @reply;
		2990
		2991	if (my $cb = $EXTICMD{$type}) {
		2992	@reply = $cb->($ns, @payload);
		2993	}
		2994
		2995	$ns->ext_reply ($reply, @reply)
		2996	if $reply;
		2997
		2998	} else {
		2999	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3000	}
		3001
		3002	cf::override;
		3003	},
1802	);	3004	);
1803		3005
1804	=item $client->async (\&cb)	3006	=item $client->async (\&cb)
1805		3007
1806	Create a new coroutine, running the specified callback. The coroutine will	3008	Create a new coroutine, running the specified callback. The coroutine will
…		…
1847	our $safe = new Safe "safe";	3049	our $safe = new Safe "safe";
1848	our $safe_hole = new Safe::Hole;	3050	our $safe_hole = new Safe::Hole;
1849		3051
1850	$SIG{FPE} = 'IGNORE';	3052	$SIG{FPE} = 'IGNORE';
1851		3053
1852	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3054	$safe->permit_only (Opcode::opset qw(
		3055	:base_core :base_mem :base_orig :base_math
		3056	grepstart grepwhile mapstart mapwhile
		3057	sort time
		3058	));
1853		3059
1854	# here we export the classes and methods available to script code	3060	# here we export the classes and methods available to script code
1855		3061
1856	=pod	3062	=pod
1857		3063
1858	The following fucntions and emthods are available within a safe environment:	3064	The following functions and methods are available within a safe environment:
1859		3065
1860	cf::object contr pay_amount pay_player map	3066	cf::object
		3067	contr pay_amount pay_player map x y force_find force_add destroy
		3068	insert remove name archname title slaying race decrease split
		3069
1861	cf::object::player player	3070	cf::object::player
1862	cf::player peaceful	3071	player
1863	cf::map trigger	3072
		3073	cf::player
		3074	peaceful
		3075
		3076	cf::map
		3077	trigger
1864		3078
1865	=cut	3079	=cut
1866		3080
1867	for (	3081	for (
1868	["cf::object" => qw(contr pay_amount pay_player map)],	3082	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3083	insert remove inv nrof name archname title slaying race
		3084	decrease split destroy change_exp)],
1869	["cf::object::player" => qw(player)],	3085	["cf::object::player" => qw(player)],
1870	["cf::player" => qw(peaceful)],	3086	["cf::player" => qw(peaceful)],
1871	["cf::map" => qw(trigger)],	3087	["cf::map" => qw(trigger)],
1872	) {	3088	) {
1873	no strict 'refs';	3089	no strict 'refs';
…		…
1944	=back	3160	=back
1945		3161
1946	=cut	3162	=cut
1947		3163
1948	#############################################################################	3164	#############################################################################
		3165	# the server's init and main functions
1949		3166
1950	=head2 EXTENSION DATABASE SUPPORT	3167	sub load_facedata($) {
		3168	my ($path) = @_;
1951		3169
1952	Crossfire maintains a very simple database for extension use. It can	3170	# HACK to clear player env face cache, we need some signal framework
1953	currently store anything that can be serialised using Storable, which	3171	# for this (global event?)
1954	excludes objects.	3172	%ext::player_env::MUSIC_FACE_CACHE = ();
1955		3173
1956	The parameter C<$family> should best start with the name of the extension	3174	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1957	using it, it should be unique.
1958		3175
1959	=over 4	3176	warn "loading facedata from $path\n";
1960		3177
1961	=item $hashref = cf::db_get $family	3178	my $facedata;
		3179	0 < aio_load $path, $facedata
		3180	or die "$path: $!";
1962		3181
1963	Return a hashref for use by the extension C<$family>, which can be	3182	$facedata = Coro::Storable::thaw $facedata;
1964	modified. After modifications, you have to call C<cf::db_dirty> or
1965	C<cf::db_sync>.
1966		3183
1967	=item $value = cf::db_get $family => $key	3184	$facedata->{version} == 2
		3185	or cf::cleanup "$path: version mismatch, cannot proceed.";
1968		3186
1969	Returns a single value from the database	3187	# patch in the exptable
1970		3188	$facedata->{resource}{"res/exp_table"} = {
1971	=item cf::db_put $family => $hashref	3189	type => FT_RSRC,
1972		3190	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1973	Stores the given family hashref into the database. Updates are delayed, if
1974	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1975
1976	=item cf::db_put $family => $key => $value
1977
1978	Stores the given C<$value> in the family hash. Updates are delayed, if you
1979	want the data to be synced to disk immediately, use C<cf::db_sync>.
1980
1981	=item cf::db_dirty
1982
1983	Marks the database as dirty, to be updated at a later time.
1984
1985	=item cf::db_sync
1986
1987	Immediately write the database to disk I<if it is dirty>.
1988
1989	=cut
1990
1991	our $DB;
1992
1993	{
1994	my $path = cf::localdir . "/database.pst";
1995
1996	sub db_load() {
1997	$DB = stat $path ? Storable::retrieve $path : { };
1998	}
1999
2000	my $pid;
2001
2002	sub db_save() {
2003	waitpid $pid, 0 if $pid;
2004	if (0 == ($pid = fork)) {
2005	$DB->{_meta}{version} = 1;
2006	Storable::nstore $DB, "$path~";
2007	rename "$path~", $path;
2008	cf::_exit 0 if defined $pid;
2009	}
2010	}
2011
2012	my $dirty;
2013
2014	sub db_sync() {
2015	db_save if $dirty;
2016	undef $dirty;
2017	}
2018
2019	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2020	db_sync;
2021	});	3191	};
		3192	cf::cede_to_tick;
2022		3193
2023	sub db_dirty() {
2024	$dirty = 1;
2025	$idle->start;
2026	}	3194	{
		3195	my $faces = $facedata->{faceinfo};
2027		3196
2028	sub db_get($;$) {	3197	while (my ($face, $info) = each %$faces) {
2029	@_ >= 2	3198	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2030	? $DB->{$_[0]}{$_[1]}
2031	: ($DB->{$_[0]} ||= { })
2032	}
2033		3199
2034	sub db_put($$;$) {	3200	cf::face::set_visibility $idx, $info->{visibility};
2035	if (@_ >= 3) {	3201	cf::face::set_magicmap $idx, $info->{magicmap};
2036	$DB->{$_[0]}{$_[1]} = $_[2];	3202	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2037	} else {	3203	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2038	$DB->{$_[0]} = $_[1];
2039	}
2040	db_dirty;
2041	}
2042		3204
2043	cf::global->attach (	3205	cf::cede_to_tick;
2044	prio => 10000,
2045	on_cleanup => sub {
2046	db_sync;
2047	},	3206	}
2048	);
2049	}
2050		3207
2051	#############################################################################	3208	while (my ($face, $info) = each %$faces) {
2052	# the server's main()	3209	next unless $info->{smooth};
2053		3210
2054	sub cfg_load {	3211	my $idx = cf::face::find $face
		3212	or next;
		3213
		3214	if (my $smooth = cf::face::find $info->{smooth}) {
		3215	cf::face::set_smooth $idx, $smooth;
		3216	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3217	} else {
		3218	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3219	}
		3220
		3221	cf::cede_to_tick;
		3222	}
		3223	}
		3224
		3225	{
		3226	my $anims = $facedata->{animinfo};
		3227
		3228	while (my ($anim, $info) = each %$anims) {
		3229	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3230	cf::cede_to_tick;
		3231	}
		3232
		3233	cf::anim::invalidate_all; # d'oh
		3234	}
		3235
		3236	{
		3237	# TODO: for gcfclient pleasure, we should give resources
		3238	# that gcfclient doesn't grok a >10000 face index.
		3239	my $res = $facedata->{resource};
		3240
		3241	while (my ($name, $info) = each %$res) {
		3242	if (defined $info->{type}) {
		3243	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3244	my $data;
		3245
		3246	if ($info->{type} & 1) {
		3247	# prepend meta info
		3248
		3249	my $meta = $enc->encode ({
		3250	name => $name,
		3251	%{ $info->{meta} || {} },
		3252	});
		3253
		3254	$data = pack "(w/a*)*", $meta, $info->{data};
		3255	} else {
		3256	$data = $info->{data};
		3257	}
		3258
		3259	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3260	cf::face::set_type $idx, $info->{type};
		3261	} else {
		3262	$RESOURCE{$name} = $info;
		3263	}
		3264
		3265	cf::cede_to_tick;
		3266	}
		3267	}
		3268
		3269	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3270
		3271	1
		3272	}
		3273
		3274	cf::global->attach (on_resource_update => sub {
		3275	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3276	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3277
		3278	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3279	my $sound = $soundconf->{compat}[$_]
		3280	or next;
		3281
		3282	my $face = cf::face::find "sound/$sound->[1]";
		3283	cf::sound::set $sound->[0] => $face;
		3284	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3285	}
		3286
		3287	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3288	my $face = cf::face::find "sound/$v";
		3289	cf::sound::set $k => $face;
		3290	}
		3291	}
		3292	});
		3293
		3294	register_exticmd fx_want => sub {
		3295	my ($ns, $want) = @_;
		3296
		3297	while (my ($k, $v) = each %$want) {
		3298	$ns->fx_want ($k, $v);
		3299	}
		3300	};
		3301
		3302	sub load_resource_file($) {
		3303	my $guard = lock_acquire "load_resource_file";
		3304
		3305	my $status = load_resource_file_ $_[0];
		3306	get_slot 0.1, 100;
		3307	cf::arch::commit_load;
		3308
		3309	$status
		3310	}
		3311
		3312	sub reload_regions {
		3313	# HACK to clear player env face cache, we need some signal framework
		3314	# for this (global event?)
		3315	%ext::player_env::MUSIC_FACE_CACHE = ();
		3316
		3317	load_resource_file "$MAPDIR/regions"
		3318	or die "unable to load regions file\n";
		3319
		3320	for (cf::region::list) {
		3321	$_->{match} = qr/$_->{match}/
		3322	if exists $_->{match};
		3323	}
		3324	}
		3325
		3326	sub reload_facedata {
		3327	load_facedata "$DATADIR/facedata"
		3328	or die "unable to load facedata\n";
		3329	}
		3330
		3331	sub reload_archetypes {
		3332	load_resource_file "$DATADIR/archetypes"
		3333	or die "unable to load archetypes\n";
		3334	}
		3335
		3336	sub reload_treasures {
		3337	load_resource_file "$DATADIR/treasures"
		3338	or die "unable to load treasurelists\n";
		3339	}
		3340
		3341	sub reload_resources {
		3342	warn "reloading resource files...\n";
		3343
		3344	reload_facedata;
		3345	reload_archetypes;
		3346	reload_regions;
		3347	reload_treasures;
		3348
		3349	warn "finished reloading resource files\n";
		3350	}
		3351
		3352	sub init {
		3353	my $guard = freeze_mainloop;
		3354
		3355	evthread_start IO::AIO::poll_fileno;
		3356
		3357	reload_resources;
		3358	}
		3359
		3360	sub reload_config {
2055	open my $fh, "<:utf8", cf::confdir . "/config"	3361	open my $fh, "<:utf8", "$CONFDIR/config"
2056	or return;	3362	or return;
2057		3363
2058	local $/;	3364	local $/;
2059	*CFG = YAML::Syck::Load <$fh>;	3365	*CFG = YAML::Load <$fh>;
2060		3366
2061	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3367	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2062		3368
2063	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3369	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2064	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3370	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2065		3371
2066	if (exists $CFG{mlockall}) {	3372	if (exists $CFG{mlockall}) {
2067	eval {	3373	eval {
2068	$CFG{mlockall} ? &mlockall : &munlockall	3374	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2069	and die "WARNING: m(un)lockall failed: $!\n";	3375	and die "WARNING: m(un)lockall failed: $!\n";
2070	};	3376	};
2071	warn $@ if $@;	3377	warn $@ if $@;
2072	}	3378	}
2073	}	3379	}
2074		3380
		3381	sub pidfile() {
		3382	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3383	or die "$PIDFILE: $!";
		3384	flock $fh, &Fcntl::LOCK_EX
		3385	or die "$PIDFILE: flock: $!";
		3386	$fh
		3387	}
		3388
		3389	# make sure only one server instance is running at any one time
		3390	sub atomic {
		3391	my $fh = pidfile;
		3392
		3393	my $pid = <$fh>;
		3394	kill 9, $pid if $pid > 0;
		3395
		3396	seek $fh, 0, 0;
		3397	print $fh $$;
		3398	}
		3399
2075	sub main {	3400	sub main {
		3401	atomic;
		3402
2076	# we must not ever block the main coroutine	3403	# we must not ever block the main coroutine
2077	local $Coro::idle = sub {	3404	local $Coro::idle = sub {
2078	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3405	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2079	async { Event::one_event };	3406	(async {
		3407	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3408	EV::loop EV::LOOP_ONESHOT;
		3409	})->prio (Coro::PRIO_MAX);
2080	};	3410	};
2081		3411
2082	cfg_load;	3412	{
2083	db_load;	3413	my $guard = freeze_mainloop;
		3414	reload_config;
		3415	db_init;
2084	load_extensions;	3416	load_extensions;
		3417
		3418	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3419	}
		3420
		3421	utime time, time, $RUNTIMEFILE;
		3422
		3423	# no (long-running) fork's whatsoever before this point(!)
		3424	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3425
2085	Event::loop;	3426	EV::loop;
2086	}	3427	}
2087		3428
2088	#############################################################################	3429	#############################################################################
2089	# initialisation	3430	# initialisation and cleanup
2090		3431
		3432	# install some emergency cleanup handlers
		3433	BEGIN {
		3434	our %SIGWATCHER = ();
		3435	for my $signal (qw(INT HUP TERM)) {
		3436	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3437	cf::cleanup "SIG$signal";
		3438	};
		3439	}
		3440	}
		3441
		3442	sub write_runtime_sync {
		3443	# first touch the runtime file to show we are still running:
		3444	# the fsync below can take a very very long time.
		3445
		3446	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3447
		3448	my $guard = cf::lock_acquire "write_runtime";
		3449
		3450	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3451	or return;
		3452
		3453	my $value = $cf::RUNTIME + 90 + 10;
		3454	# 10 is the runtime save interval, for a monotonic clock
		3455	# 60 allows for the watchdog to kill the server.
		3456
		3457	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3458	and return;
		3459
		3460	# always fsync - this file is important
		3461	aio_fsync $fh
		3462	and return;
		3463
		3464	# touch it again to show we are up-to-date
		3465	aio_utime $fh, undef, undef;
		3466
		3467	close $fh
		3468	or return;
		3469
		3470	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3471	and return;
		3472
		3473	warn "runtime file written.\n";
		3474
		3475	1
		3476	}
		3477
		3478	our $uuid_lock;
		3479	our $uuid_skip;
		3480
		3481	sub write_uuid_sync($) {
		3482	$uuid_skip ||= $_[0];
		3483
		3484	return if $uuid_lock;
		3485	local $uuid_lock = 1;
		3486
		3487	my $uuid = "$LOCALDIR/uuid";
		3488
		3489	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3490	or return;
		3491
		3492	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3493	$uuid_skip = 0;
		3494
		3495	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3496	and return;
		3497
		3498	# always fsync - this file is important
		3499	aio_fsync $fh
		3500	and return;
		3501
		3502	close $fh
		3503	or return;
		3504
		3505	aio_rename "$uuid~", $uuid
		3506	and return;
		3507
		3508	warn "uuid file written ($value).\n";
		3509
		3510	1
		3511
		3512	}
		3513
		3514	sub write_uuid($$) {
		3515	my ($skip, $sync) = @_;
		3516
		3517	$sync ? write_uuid_sync $skip
		3518	: async { write_uuid_sync $skip };
		3519	}
		3520
		3521	sub emergency_save() {
		3522	my $freeze_guard = cf::freeze_mainloop;
		3523
		3524	warn "enter emergency perl save\n";
		3525
		3526	cf::sync_job {
		3527	# use a peculiar iteration method to avoid tripping on perl
		3528	# refcount bugs in for. also avoids problems with players
		3529	# and maps saved/destroyed asynchronously.
		3530	warn "begin emergency player save\n";
		3531	for my $login (keys %cf::PLAYER) {
		3532	my $pl = $cf::PLAYER{$login} or next;
		3533	$pl->valid or next;
		3534	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3535	$pl->save;
		3536	}
		3537	warn "end emergency player save\n";
		3538
		3539	warn "begin emergency map save\n";
		3540	for my $path (keys %cf::MAP) {
		3541	my $map = $cf::MAP{$path} or next;
		3542	$map->valid or next;
		3543	$map->save;
		3544	}
		3545	warn "end emergency map save\n";
		3546
		3547	warn "begin emergency database checkpoint\n";
		3548	BDB::db_env_txn_checkpoint $DB_ENV;
		3549	warn "end emergency database checkpoint\n";
		3550
		3551	warn "begin write uuid\n";
		3552	write_uuid_sync 1;
		3553	warn "end write uuid\n";
		3554	};
		3555
		3556	warn "leave emergency perl save\n";
		3557	}
		3558
		3559	sub post_cleanup {
		3560	my ($make_core) = @_;
		3561
		3562	warn Carp::longmess "post_cleanup backtrace"
		3563	if $make_core;
		3564
		3565	my $fh = pidfile;
		3566	unlink $PIDFILE if <$fh> == $$;
		3567	}
		3568
		3569	# a safer delete_package, copied from Symbol
		3570	sub clear_package($) {
		3571	my $pkg = shift;
		3572
		3573	# expand to full symbol table name if needed
		3574	unless ($pkg =~ /^main::.*::$/) {
		3575	$pkg = "main$pkg" if $pkg =~ /^::/;
		3576	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3577	$pkg .= '::' unless $pkg =~ /::$/;
		3578	}
		3579
		3580	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3581	my $stem_symtab = *{$stem}{HASH};
		3582
		3583	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3584	or return;
		3585
		3586	# clear all symbols
		3587	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3588	for my $name (keys %$leaf_symtab) {
		3589	_gv_clear *{"$pkg$name"};
		3590	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3591	}
		3592	warn "cleared package #$pkg\n";#d#
		3593	}
		3594
		3595	our $RELOAD; # how many times to reload
		3596
2091	sub reload() {	3597	sub do_reload_perl() {
2092	# can/must only be called in main	3598	# can/must only be called in main
2093	if ($Coro::current != $Coro::main) {	3599	if ($Coro::current != $Coro::main) {
2094	warn "can only reload from main coroutine\n";	3600	warn "can only reload from main coroutine";
2095	return;	3601	return;
2096	}	3602	}
2097		3603
		3604	return if $RELOAD++;
		3605
		3606	while ($RELOAD) {
2098	warn "reloading...";	3607	warn "reloading...";
2099		3608
2100	my $guard = freeze_mainloop;	3609	warn "entering sync_job";
		3610
		3611	cf::sync_job {
		3612	cf::write_runtime_sync; # external watchdog should not bark
2101	cf::emergency_save;	3613	cf::emergency_save;
		3614	cf::write_runtime_sync; # external watchdog should not bark
2102		3615
2103	eval {	3616	warn "syncing database to disk";
		3617	BDB::db_env_txn_checkpoint $DB_ENV;
		3618
2104	# if anything goes wrong in here, we should simply crash as we already saved	3619	# if anything goes wrong in here, we should simply crash as we already saved
2105		3620
2106	# cancel all watchers	3621	warn "flushing outstanding aio requests";
2107	for (Event::all_watchers) {	3622	while (IO::AIO::nreqs || BDB::nreqs) {
2108	$_->cancel if $_->data & WF_AUTOCANCEL;	3623	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2109	}
2110
2111	# cancel all extension coros
2112	$_->cancel for values %EXT_CORO;
2113	%EXT_CORO = ();
2114
2115	# unload all extensions
2116	for (@exts) {
2117	warn "unloading <$_>";
2118	unload_extension $_;
2119	}
2120
2121	# unload all modules loaded from $LIBDIR
2122	while (my ($k, $v) = each %INC) {
2123	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2124
2125	warn "removing <$k>";
2126	delete $INC{$k};
2127
2128	$k =~ s/\.pm$//;
2129	$k =~ s/\//::/g;
2130
2131	if (my $cb = $k->can ("unload_module")) {
2132	$cb->();
2133	}	3624	}
2134		3625
2135	Symbol::delete_package $k;	3626	warn "cancelling all extension coros";
		3627	$_->cancel for values %EXT_CORO;
		3628	%EXT_CORO = ();
		3629
		3630	warn "removing commands";
		3631	%COMMAND = ();
		3632
		3633	warn "removing ext/exti commands";
		3634	%EXTCMD = ();
		3635	%EXTICMD = ();
		3636
		3637	warn "unloading/nuking all extensions";
		3638	for my $pkg (@EXTS) {
		3639	warn "... unloading $pkg";
		3640
		3641	if (my $cb = $pkg->can ("unload")) {
		3642	eval {
		3643	$cb->($pkg);
		3644	1
		3645	} or warn "$pkg unloaded, but with errors: $@";
		3646	}
		3647
		3648	warn "... clearing $pkg";
		3649	clear_package $pkg;
2136	}	3650	}
2137		3651
2138	# sync database to disk	3652	warn "unloading all perl modules loaded from $LIBDIR";
2139	cf::db_sync;	3653	while (my ($k, $v) = each %INC) {
2140	IO::AIO::flush;	3654	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2141		3655
		3656	warn "... unloading $k";
		3657	delete $INC{$k};
		3658
		3659	$k =~ s/\.pm$//;
		3660	$k =~ s/\//::/g;
		3661
		3662	if (my $cb = $k->can ("unload_module")) {
		3663	$cb->();
		3664	}
		3665
		3666	clear_package $k;
		3667	}
		3668
2142	# get rid of safe::, as good as possible	3669	warn "getting rid of safe::, as good as possible";
2143	Symbol::delete_package "safe::$_"	3670	clear_package "safe::$_"
2144	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3671	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2145		3672
2146	# remove register_script_function callbacks	3673	warn "unloading cf.pm \"a bit\"";
2147	# TODO
2148
2149	# unload cf.pm "a bit"
2150	delete $INC{"cf.pm"};	3674	delete $INC{"cf.pm"};
		3675	delete $INC{"cf/pod.pm"};
2151		3676
2152	# don't, removes xs symbols, too,	3677	# don't, removes xs symbols, too,
2153	# and global variables created in xs	3678	# and global variables created in xs
2154	#Symbol::delete_package __PACKAGE__;	3679	#clear_package __PACKAGE__;
2155		3680
2156	# reload cf.pm	3681	warn "unload completed, starting to reload now";
		3682
2157	warn "reloading cf.pm";	3683	warn "reloading cf.pm";
2158	require cf;	3684	require cf;
2159	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3685	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2160		3686
2161	# load config and database again	3687	warn "loading config and database again";
2162	cf::cfg_load;	3688	cf::reload_config;
2163	cf::db_load;
2164		3689
2165	# load extensions
2166	warn "load extensions";	3690	warn "loading extensions";
2167	cf::load_extensions;	3691	cf::load_extensions;
2168		3692
2169	# reattach attachments to objects	3693	warn "reattaching attachments to objects/players";
		3694	_global_reattach; # objects, sockets
		3695	warn "reattaching attachments to maps";
		3696	reattach $_ for values %MAP;
		3697	warn "reattaching attachments to players";
		3698	reattach $_ for values %PLAYER;
		3699
		3700	warn "leaving sync_job";
		3701
		3702	1
		3703	} or do {
		3704	warn $@;
		3705	cf::cleanup "error while reloading, exiting.";
		3706	};
		3707
2170	warn "reattach";	3708	warn "reloaded";
2171	_global_reattach;	3709	--$RELOAD;
		3710	}
		3711	};
		3712
		3713	our $RELOAD_WATCHER; # used only during reload
		3714
		3715	sub reload_perl() {
		3716	# doing reload synchronously and two reloads happen back-to-back,
		3717	# coro crashes during coro_state_free->destroy here.
		3718
		3719	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3720	do_reload_perl;
		3721	undef $RELOAD_WATCHER;
2172	};	3722	};
2173
2174	if ($@) {
2175	warn $@;
2176	warn "error while reloading, exiting.";
2177	exit 1;
2178	}
2179
2180	warn "reloaded successfully";
2181	};
2182
2183	#############################################################################
2184
2185	unless ($LINK_MAP) {
2186	$LINK_MAP = cf::map::new;
2187
2188	$LINK_MAP->width (41);
2189	$LINK_MAP->height (41);
2190	$LINK_MAP->alloc;
2191	$LINK_MAP->path ("{link}");
2192	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2193	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2194
2195	# dirty hack because... archetypes are not yet loaded
2196	Event->timer (
2197	after => 10,
2198	cb => sub {
2199	$_[0]->w->cancel;
2200
2201	# provide some exits "home"
2202	my $exit = cf::object::new "exit";
2203
2204	$exit->slaying ($EMERGENCY_POSITION->[0]);
2205	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2206	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2207
2208	$LINK_MAP->insert ($exit->clone, 19, 19);
2209	$LINK_MAP->insert ($exit->clone, 19, 20);
2210	$LINK_MAP->insert ($exit->clone, 19, 21);
2211	$LINK_MAP->insert ($exit->clone, 20, 19);
2212	$LINK_MAP->insert ($exit->clone, 20, 21);
2213	$LINK_MAP->insert ($exit->clone, 21, 19);
2214	$LINK_MAP->insert ($exit->clone, 21, 20);
2215	$LINK_MAP->insert ($exit->clone, 21, 21);
2216
2217	$exit->destroy;
2218	});
2219
2220	$LINK_MAP->{deny_save} = 1;
2221	$LINK_MAP->{deny_reset} = 1;
2222
2223	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2224	}	3723	}
2225
2226	register "<global>", __PACKAGE__;
2227		3724
2228	register_command "reload" => sub {	3725	register_command "reload" => sub {
2229	my ($who, $arg) = @_;	3726	my ($who, $arg) = @_;
2230		3727
2231	if ($who->flag (FLAG_WIZ)) {	3728	if ($who->flag (FLAG_WIZ)) {
2232	$who->message ("start of reload.");
2233	reload;
2234	$who->message ("end of reload.");	3729	$who->message ("reloading server.");
		3730	async {
		3731	$Coro::current->{desc} = "perl_reload";
		3732	reload_perl;
		3733	};
2235	}	3734	}
2236	};	3735	};
2237		3736
2238	unshift @INC, $LIBDIR;	3737	unshift @INC, $LIBDIR;
2239		3738
2240	$TICK_WATCHER = Event->timer (	3739	my $bug_warning = 0;
2241	reentrant => 0,	3740
2242	prio => 0,	3741	our @WAIT_FOR_TICK;
2243	at => $NEXT_TICK || $TICK,	3742	our @WAIT_FOR_TICK_BEGIN;
2244	data => WF_AUTOCANCEL,	3743
2245	cb => sub {	3744	sub wait_for_tick {
		3745	return if tick_inhibit || $Coro::current == $Coro::main;
		3746
		3747	my $signal = new Coro::Signal;
		3748	push @WAIT_FOR_TICK, $signal;
		3749	$signal->wait;
		3750	}
		3751
		3752	sub wait_for_tick_begin {
		3753	return if tick_inhibit || $Coro::current == $Coro::main;
		3754
		3755	my $signal = new Coro::Signal;
		3756	push @WAIT_FOR_TICK_BEGIN, $signal;
		3757	$signal->wait;
		3758	}
		3759
		3760	sub tick {
		3761	if ($Coro::current != $Coro::main) {
		3762	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3763	unless ++$bug_warning > 10;
		3764	return;
		3765	}
		3766
2246	cf::server_tick; # one server iteration	3767	cf::server_tick; # one server iteration
2247	$RUNTIME += $TICK;
2248	$NEXT_TICK += $TICK;
2249		3768
2250	# if we are delayed by four ticks or more, skip them all	3769	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2251	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3770	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2252		3771	Coro::async_pool {
2253	$TICK_WATCHER->at ($NEXT_TICK);	3772	$Coro::current->{desc} = "runtime saver";
2254	$TICK_WATCHER->start;
2255	},
2256	);
2257
2258	IO::AIO::max_poll_time $TICK * 0.2;
2259
2260	Event->io (
2261	fd => IO::AIO::poll_fileno,
2262	poll => 'r',
2263	prio => 5,
2264	data => WF_AUTOCANCEL,
2265	cb => \&IO::AIO::poll_cb,
2266	);
2267
2268	Event->timer (
2269	data => WF_AUTOCANCEL,
2270	after => 0,
2271	interval => 10,
2272	cb => sub {
2273	(Coro::unblock_sub {
2274	write_runtime	3773	write_runtime_sync
2275	or warn "ERROR: unable to write runtime file: $!";	3774	or warn "ERROR: unable to write runtime file: $!";
2276	})->();	3775	};
2277	},	3776	}
2278	);	3777
		3778	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3779	$sig->send;
		3780	}
		3781	while (my $sig = shift @WAIT_FOR_TICK) {
		3782	$sig->send;
		3783	}
		3784
		3785	$LOAD = ($NOW - $TICK_START) / $TICK;
		3786	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3787
		3788	if (0) {
		3789	if ($NEXT_TICK) {
		3790	my $jitter = $TICK_START - $NEXT_TICK;
		3791	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3792	warn "jitter $JITTER\n";#d#
		3793	}
		3794	}
		3795	}
		3796
		3797	{
		3798	# configure BDB
		3799
		3800	BDB::min_parallel 8;
		3801	BDB::max_poll_reqs $TICK * 0.1;
		3802	$AnyEvent::BDB::WATCHER->priority (1);
		3803
		3804	unless ($DB_ENV) {
		3805	$DB_ENV = BDB::db_env_create;
		3806	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3807	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3808	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3809	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3810	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3811
		3812	cf::sync_job {
		3813	eval {
		3814	BDB::db_env_open
		3815	$DB_ENV,
		3816	$BDBDIR,
		3817	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3818	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3819	0666;
		3820
		3821	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3822	};
		3823
		3824	cf::cleanup "db_env_open(db): $@" if $@;
		3825	};
		3826	}
		3827
		3828	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3829	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3830	};
		3831	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3832	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3833	};
		3834	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3835	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3836	};
		3837	}
		3838
		3839	{
		3840	# configure IO::AIO
		3841
		3842	IO::AIO::min_parallel 8;
		3843	IO::AIO::max_poll_time $TICK * 0.1;
		3844	undef $AnyEvent::AIO::WATCHER;
		3845	}
		3846
		3847	my $_log_backtrace;
		3848
		3849	sub _log_backtrace {
		3850	my ($msg, @addr) = @_;
		3851
		3852	$msg =~ s/\n//;
		3853
		3854	# limit the # of concurrent backtraces
		3855	if ($_log_backtrace < 2) {
		3856	++$_log_backtrace;
		3857	my $perl_bt = Carp::longmess $msg;
		3858	async {
		3859	$Coro::current->{desc} = "abt $msg";
		3860
		3861	my @bt = fork_call {
		3862	@addr = map { sprintf "%x", $_ } @addr;
		3863	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3864	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3865	or die "addr2line: $!";
		3866
		3867	my @funcs;
		3868	my @res = <$fh>;
		3869	chomp for @res;
		3870	while (@res) {
		3871	my ($func, $line) = splice @res, 0, 2, ();
		3872	push @funcs, "[$func] $line";
		3873	}
		3874
		3875	@funcs
		3876	};
		3877
		3878	LOG llevInfo, "[ABT] $perl_bt\n";
		3879	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3880	LOG llevInfo, "[ABT] $_\n" for @bt;
		3881	--$_log_backtrace;
		3882	};
		3883	} else {
		3884	LOG llevInfo, "[ABT] $msg\n";
		3885	LOG llevInfo, "[ABT] [suppressed]\n";
		3886	}
		3887	}
		3888
		3889	# load additional modules
		3890	use cf::pod;
2279		3891
2280	END { cf::emergency_save }	3892	END { cf::emergency_save }
2281		3893
2282	1	3894	1
2283		3895

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