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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.452 by root, Tue Sep 23 00:24:52 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	# make sure c-lzf reinitialises itself
		72	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		73	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
32		74
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	75	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		76
35	our %COMMAND = ();	77	our %COMMAND = ();
36	our %COMMAND_TIME = ();	78	our %COMMAND_TIME = ();
		79
		80	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	81	our %EXTCMD = ();
		82	our %EXTICMD = ();
		83	our %EXT_CORO = (); # coroutines bound to extensions
		84	our %EXT_MAP = (); # pluggable maps
38		85
		86	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	87	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		88
42	our $TICK = MAX_TIME * 1e-6;	89	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	90	our $DATADIR = datadir;
		91	our $LIBDIR = "$DATADIR/ext";
		92	our $PODDIR = "$DATADIR/pod";
		93	our $MAPDIR = "$DATADIR/" . mapdir;
		94	our $LOCALDIR = localdir;
		95	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		96	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		97	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		98	our $RANDOMDIR = "$LOCALDIR/random";
		99	our $BDBDIR = "$LOCALDIR/db";
		100	our $PIDFILE = "$LOCALDIR/pid";
		101	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		102
		103	our %RESOURCE;
		104
		105	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		106	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	107	our $NEXT_TICK;
45	our $NOW;	108	our $USE_FSYNC = 1; # use fsync to write maps - default off
		109
		110	our $BDB_DEADLOCK_WATCHER;
		111	our $BDB_CHECKPOINT_WATCHER;
		112	our $BDB_TRICKLE_WATCHER;
		113	our $DB_ENV;
46		114
47	our %CFG;	115	our %CFG;
48		116
49	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
51		120
52	our %MAP; # all maps	121	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	122	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	123	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	124
		125	# used to convert map paths into valid unix filenames by replacing / by ∕
		126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		127
		128	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		129	our $LOADAVG; # same thing, but with alpha-smoothing
		130	our $JITTER; # average jitter
		131	our $TICK_START; # for load detecting purposes
56		132
57	binmode STDOUT;	133	binmode STDOUT;
58	binmode STDERR;	134	binmode STDERR;
59		135
60	# read virtual server time, if available	136	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	137	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	138	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	139	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	140	$RUNTIME = <$fh> + 0.;
65	}	141	}
66		142
67	mkdir cf::localdir;	143	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	144	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		145
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	146	our $EMERGENCY_POSITION;
		147
		148	sub cf::map::normalise;
76		149
77	#############################################################################	150	#############################################################################
78		151
79	=head2 GLOBAL VARIABLES	152	=head2 GLOBAL VARIABLES
80		153
…		…
87	=item $cf::RUNTIME	160	=item $cf::RUNTIME
88		161
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	162	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	163	every server tick.
91		164
92	=item $cf::LIBDIR	165	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		166	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		167	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		168
94	The perl library directory, where extensions and cf-specific modules can	169	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	170	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		171	unique-items directory, player file directory, random maps directory and
		172	database environment.
96		173
97	=item $cf::NOW	174	=item $cf::NOW
98		175
99	The time of the last (current) server tick.	176	The time of the last (current) server tick.
100		177
101	=item $cf::TICK	178	=item $cf::TICK
102		179
103	The interval between server ticks, in seconds.	180	The interval between server ticks, in seconds.
104		181
		182	=item $cf::LOADAVG
		183
		184	The current CPU load on the server (alpha-smoothed), as a value between 0
		185	(none) and 1 (overloaded), indicating how much time is spent on processing
		186	objects per tick. Healthy values are < 0.5.
		187
		188	=item $cf::LOAD
		189
		190	The raw value load value from the last tick.
		191
105	=item %cf::CFG	192	=item %cf::CFG
106		193
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	194	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	195	from wherever your confdir points to.
		196
		197	=item cf::wait_for_tick, cf::wait_for_tick_begin
		198
		199	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		200	returns directly I<after> the tick processing (and consequently, can only wake one process
		201	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		202
		203	=item @cf::INVOKE_RESULTS
		204
		205	This array contains the results of the last C<invoke ()> call. When
		206	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		207	that call.
109		208
110	=back	209	=back
111		210
112	=cut	211	=cut
113		212
114	BEGIN {	213	BEGIN {
115	*CORE::GLOBAL::warn = sub {	214	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	215	my $msg = join "", @_;
117	utf8::encode $msg;
118		216
119	$msg .= "\n"	217	$msg .= "\n"
120	unless $msg =~ /\n$/;	218	unless $msg =~ /\n$/;
121		219
		220	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		221
122	LOG llevError, "cfperl: $msg";	222	LOG llevError, $msg;
123	};	223	};
124	}	224	}
		225
		226	$Coro::State::DIEHOOK = sub {
		227	return unless $^S eq 0; # "eq", not "=="
		228
		229	if ($Coro::current == $Coro::main) {#d#
		230	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		231	return;#d#
		232	}#d#
		233
		234	# kill coroutine otherwise
		235	warn Carp::longmess $_[0];
		236	Coro::terminate
		237	};
		238
		239	$SIG{__DIE__} = sub { }; #d#?
125		240
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	241	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	242	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	243	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	244	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	245	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		246	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	247	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		248
133	# we bless all objects into (empty) derived classes to force a method lookup	249	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	250	# within the Safe compartment.
135	for my $pkg (qw(	251	for my $pkg (qw(
136	cf::global cf::attachable	252	cf::global cf::attachable
137	cf::object cf::object::player	253	cf::object cf::object::player
138	cf::client cf::player	254	cf::client cf::player
139	cf::arch cf::living	255	cf::arch cf::living
		256	cf::map cf::mapspace
140	cf::map cf::party cf::region	257	cf::party cf::region
141	)) {	258	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	259	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	260	}
145		261
146	$Event::DIED = sub {	262	$EV::DIED = sub {
147	warn "error in event callback: @_";	263	warn "error in event callback: @_";
148	};	264	};
149		265
150	my %ext_pkg;	266	#############################################################################
151	my @exts;
152	my @hook;
153		267
154	=head2 UTILITY FUNCTIONS	268	=head2 UTILITY FUNCTIONS
155		269
156	=over 4	270	=over 4
157		271
158	=cut	272	=item dumpval $ref
159		273
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	274	=cut
161		275
		276	sub dumpval {
		277	eval {
		278	local $SIG{__DIE__};
		279	my $d;
		280	if (1) {
		281	$d = new Data::Dumper([$_[0]], ["*var"]);
		282	$d->Terse(1);
		283	$d->Indent(2);
		284	$d->Quotekeys(0);
		285	$d->Useqq(1);
		286	#$d->Bless(...);
		287	$d->Seen($_[1]) if @_ > 1;
		288	$d = $d->Dump();
		289	}
		290	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		291	$d
		292	} || "[unable to dump $_[0]: '$@']";
		293	}
		294
162	=item $ref = cf::from_json $json	295	=item $ref = cf::decode_json $json
163		296
164	Converts a JSON string into the corresponding perl data structure.	297	Converts a JSON string into the corresponding perl data structure.
165		298
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	299	=item $json = cf::encode_json $ref
174		300
175	Converts a perl data structure into its JSON representation.	301	Converts a perl data structure into its JSON representation.
176		302
177	=cut	303	=cut
178		304
179	sub to_json($) {	305	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	306
181	JSON::Syck::Dump $_[0]	307	sub encode_json($) { $json_coder->encode ($_[0]) }
182	}	308	sub decode_json($) { $json_coder->decode ($_[0]) }
183		309
184	=item cf::lock_wait $string	310	=item cf::lock_wait $string
185		311
186	Wait until the given lock is available. See cf::lock_acquire.	312	Wait until the given lock is available. See cf::lock_acquire.
187		313
…		…
190	Wait until the given lock is available and then acquires it and returns	316	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	317	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	318	for example when the coroutine gets canceled), the lock is automatically
193	returned.	319	returned.
194		320
		321	Locks are *not* recursive, locking from the same coro twice results in a
		322	deadlocked coro.
		323
195	Lock names should begin with a unique identifier (for example, cf::map::find	324	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	325	uses map_find and cf::map::load uses map_load).
197		326
		327	=item $locked = cf::lock_active $string
		328
		329	Return true if the lock is currently active, i.e. somebody has locked it.
		330
198	=cut	331	=cut
199		332
200	our %LOCK;	333	our %LOCK;
		334	our %LOCKER;#d#
201		335
202	sub lock_wait($) {	336	sub lock_wait($) {
203	my ($key) = @_;	337	my ($key) = @_;
204		338
		339	if ($LOCKER{$key} == $Coro::current) {#d#
		340	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		341	return;#d#
		342	}#d#
		343
205	# wait for lock, if any	344	# wait for lock, if any
206	while ($LOCK{$key}) {	345	while ($LOCK{$key}) {
		346	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
207	push @{ $LOCK{$key} }, $Coro::current;	347	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	348	Coro::schedule;
209	}	349	}
210	}	350	}
211		351
…		…
214		354
215	# wait, to be sure we are not locked	355	# wait, to be sure we are not locked
216	lock_wait $key;	356	lock_wait $key;
217		357
218	$LOCK{$key} = [];	358	$LOCK{$key} = [];
		359	$LOCKER{$key} = $Coro::current;#d#
219		360
220	Coro::guard {	361	Coro::guard {
		362	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	363	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	364	$_->ready for @{ delete $LOCK{$key} };
223	}	365	}
224	}	366	}
225		367
		368	sub lock_active($) {
		369	my ($key) = @_;
		370
		371	! ! $LOCK{$key}
		372	}
		373
226	sub freeze_mainloop {	374	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	375	tick_inhibit_inc;
228		376
229	my $guard = Coro::guard { $TICK_WATCHER->start };	377	Coro::guard \&tick_inhibit_dec;
230	$TICK_WATCHER->stop;
231	$guard
232	}	378	}
		379
		380	=item cf::periodic $interval, $cb
		381
		382	Like EV::periodic, but randomly selects a starting point so that the actions
		383	get spread over timer.
		384
		385	=cut
		386
		387	sub periodic($$) {
		388	my ($interval, $cb) = @_;
		389
		390	my $start = rand List::Util::min 180, $interval;
		391
		392	EV::periodic $start, $interval, 0, $cb
		393	}
		394
		395	=item cf::get_slot $time[, $priority[, $name]]
		396
		397	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		398	This call blocks and returns only when you have at least C<$time> seconds
		399	of cpu time till the next tick. The slot is only valid till the next cede.
		400
		401	The optional C<$name> can be used to identify the job to run. It might be
		402	used for statistical purposes and should identify the same time-class.
		403
		404	Useful for short background jobs.
		405
		406	=cut
		407
		408	our @SLOT_QUEUE;
		409	our $SLOT_QUEUE;
		410
		411	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		412	$SLOT_QUEUE = Coro::async {
		413	$Coro::current->desc ("timeslot manager");
		414
		415	my $signal = new Coro::Signal;
		416
		417	while () {
		418	next_job:
		419	my $avail = cf::till_tick;
		420	if ($avail > 0.01) {
		421	for (0 .. $#SLOT_QUEUE) {
		422	if ($SLOT_QUEUE[$_][0] < $avail) {
		423	my $job = splice @SLOT_QUEUE, $_, 1, ();
		424	$job->[2]->send;
		425	Coro::cede;
		426	goto next_job;
		427	}
		428	}
		429	}
		430
		431	if (@SLOT_QUEUE) {
		432	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		433	push @cf::WAIT_FOR_TICK, $signal;
		434	$signal->wait;
		435	} else {
		436	Coro::schedule;
		437	}
		438	}
		439	};
		440
		441	sub get_slot($;$$) {
		442	return if tick_inhibit || $Coro::current == $Coro::main;
		443
		444	my ($time, $pri, $name) = @_;
		445
		446	$time = $TICK * .6 if $time > $TICK * .6;
		447	my $sig = new Coro::Signal;
		448
		449	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		450	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		451	$SLOT_QUEUE->ready;
		452	$sig->wait;
		453	}
		454
		455	=item cf::async { BLOCK }
		456
		457	Currently the same as Coro::async_pool, meaning you cannot use
		458	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		459	thing you are allowed to do is call C<prio> on it.
		460
		461	=cut
		462
		463	BEGIN { *async = \&Coro::async_pool }
233		464
234	=item cf::sync_job { BLOCK }	465	=item cf::sync_job { BLOCK }
235		466
236	The design of crossfire+ requires that the main coro ($Coro::main) is	467	The design of Deliantra requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	468	is always able to handle events or runnable, as Deliantra is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	469	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		470	acceptable.
239		471
240	If it must be done, put the blocking parts into C<sync_job>. This will run	472	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	473	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	474	server will be frozen during this time, so the block should either finish
243	fast or be very important.	475	fast or be very important.
…		…
246		478
247	sub sync_job(&) {	479	sub sync_job(&) {
248	my ($job) = @_;	480	my ($job) = @_;
249		481
250	if ($Coro::current == $Coro::main) {	482	if ($Coro::current == $Coro::main) {
		483	my $time = EV::time;
		484
251	# this is the main coro, too bad, we have to block	485	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	486	# till the operation succeeds, freezing the server :/
253		487
254	# TODO: use suspend/resume instead	488	LOG llevError, Carp::longmess "sync job";#d#
255	# (but this is cancel-safe)	489
256	my $freeze_guard = freeze_mainloop;	490	my $freeze_guard = freeze_mainloop;
257		491
258	my $busy = 1;	492	my $busy = 1;
259	my @res;	493	my @res;
260		494
261	(Coro::async_pool {	495	(async {
		496	$Coro::current->desc ("sync job coro");
262	@res = eval { $job->() };	497	@res = eval { $job->() };
263	warn $@ if $@;	498	warn $@ if $@;
264	undef $busy;	499	undef $busy;
265	})->prio (Coro::PRIO_MAX);	500	})->prio (Coro::PRIO_MAX);
266		501
267	while ($busy) {	502	while ($busy) {
268	unless (Coro::cede) {	503	if (Coro::nready) {
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;	504	Coro::cede_notself;
		505	} else {
		506	EV::loop EV::LOOP_ONESHOT;
271	}	507	}
272	}	508	}
		509
		510	my $time = EV::time - $time;
		511
		512	$TICK_START += $time; # do not account sync jobs to server load
273		513
274	wantarray ? @res : $res[0]	514	wantarray ? @res : $res[0]
275	} else {	515	} else {
276	# we are in another coroutine, how wonderful, everything just works	516	# we are in another coroutine, how wonderful, everything just works
277		517
278	$job->()	518	$job->()
279	}	519	}
280	}	520	}
281		521
282	=item $coro = cf::coro { BLOCK }	522	=item $coro = cf::async_ext { BLOCK }
283		523
284	Creates (and readies) and returns a new coro. This coro is automcatially	524	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	525	extension calling this is being unloaded.
286		526
287	=cut	527	=cut
288		528
289	sub coro(&) {	529	sub async_ext(&) {
290	my $cb = shift;	530	my $cb = shift;
291		531
292	my $coro = &Coro::async_pool ($cb);	532	my $coro = &Coro::async ($cb);
293		533
294	$coro->on_destroy (sub {	534	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	535	delete $EXT_CORO{$coro+0};
296	});	536	});
297	$EXT_CORO{$coro+0} = $coro;	537	$EXT_CORO{$coro+0} = $coro;
298		538
299	$coro	539	$coro
300	}	540	}
301		541
302	sub write_runtime {	542	=item fork_call { }, $args
303	my $runtime = cf::localdir . "/runtime";
304		543
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	544	Executes the given code block with the given arguments in a seperate
306	or return;	545	process, returning the results. Everything must be serialisable with
		546	Coro::Storable. May, of course, block. Note that the executed sub may
		547	never block itself or use any form of event handling.
307		548
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	549	=cut
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;
311		550
312	aio_fsync $fh	551	sub fork_call(&@) {
313	and return;	552	my ($cb, @args) = @_;
314		553
315	close $fh	554	# we seemingly have to make a local copy of the whole thing,
316	or return;	555	# otherwise perl prematurely frees the stuff :/
		556	# TODO: investigate and fix (likely this will be rather laborious)
317		557
318	aio_rename "$runtime~", $runtime	558	my @res = Coro::Util::fork_eval {
319	and return;	559	reset_signals;
		560	&$cb
		561	}, @args;
320		562
		563	wantarray ? @res : $res[-1]
		564	}
		565
		566	=item $coin = coin_from_name $name
		567
		568	=cut
		569
		570	our %coin_alias = (
		571	"silver" => "silvercoin",
		572	"silvercoin" => "silvercoin",
		573	"silvercoins" => "silvercoin",
		574	"gold" => "goldcoin",
		575	"goldcoin" => "goldcoin",
		576	"goldcoins" => "goldcoin",
		577	"platinum" => "platinacoin",
		578	"platinumcoin" => "platinacoin",
		579	"platinumcoins" => "platinacoin",
		580	"platina" => "platinacoin",
		581	"platinacoin" => "platinacoin",
		582	"platinacoins" => "platinacoin",
		583	"royalty" => "royalty",
		584	"royalties" => "royalty",
		585	);
		586
		587	sub coin_from_name($) {
		588	$coin_alias{$_[0]}
		589	? cf::arch::find $coin_alias{$_[0]}
		590	: undef
		591	}
		592
		593	=item $value = cf::db_get $family => $key
		594
		595	Returns a single value from the environment database.
		596
		597	=item cf::db_put $family => $key => $value
		598
		599	Stores the given C<$value> in the family. It can currently store binary
		600	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		601
		602	=item $db = cf::db_table "name"
		603
		604	Create and/or open a new database table. The string must not be "db" and must be unique
		605	within each server.
		606
		607	=cut
		608
		609	sub db_table($) {
		610	my ($name) = @_;
		611	my $db = BDB::db_create $DB_ENV;
		612
		613	eval {
		614	$db->set_flags (BDB::CHKSUM);
		615
		616	utf8::encode $name;
		617	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		618	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		619	cf::cleanup "db_open(db): $!" if $!;
		620	};
		621	cf::cleanup "db_open(db): $@" if $@;
		622
		623	$db
		624	}
		625
		626	our $DB;
		627
		628	sub db_init {
		629	cf::sync_job {
		630	$DB ||= db_table "db";
		631	};
		632	}
		633
		634	sub db_get($$) {
		635	my $key = "$_[0]/$_[1]";
		636
		637	cf::sync_job {
		638	BDB::db_get $DB, undef, $key, my $data;
		639
		640	$! ? ()
		641	: $data
321	1	642	}
		643	}
		644
		645	sub db_put($$$) {
		646	BDB::dbreq_pri 4;
		647	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		648	}
		649
		650	=item cf::cache $id => [$paths...], $processversion => $process
		651
		652	Generic caching function that returns the value of the resource $id,
		653	caching and regenerating as required.
		654
		655	This function can block.
		656
		657	=cut
		658
		659	sub cache {
		660	my ($id, $src, $processversion, $process) = @_;
		661
		662	my $meta =
		663	join "\x00",
		664	$processversion,
		665	map {
		666	aio_stat $_
		667	and Carp::croak "$_: $!";
		668
		669	($_, (stat _)[7,9])
		670	} @$src;
		671
		672	my $dbmeta = db_get cache => "$id/meta";
		673	if ($dbmeta ne $meta) {
		674	# changed, we may need to process
		675
		676	my @data;
		677	my $md5;
		678
		679	for (0 .. $#$src) {
		680	0 <= aio_load $src->[$_], $data[$_]
		681	or Carp::croak "$src->[$_]: $!";
		682	}
		683
		684	# if processing is expensive, check
		685	# checksum first
		686	if (1) {
		687	$md5 =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	cf::cede_to_tick;
		692	($src->[$_], Digest::MD5::md5_hex $data[$_])
		693	} 0.. $#$src;
		694
		695
		696	my $dbmd5 = db_get cache => "$id/md5";
		697	if ($dbmd5 eq $md5) {
		698	db_put cache => "$id/meta", $meta;
		699
		700	return db_get cache => "$id/data";
		701	}
		702	}
		703
		704	my $t1 = Time::HiRes::time;
		705	my $data = $process->(\@data);
		706	my $t2 = Time::HiRes::time;
		707
		708	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		709
		710	db_put cache => "$id/data", $data;
		711	db_put cache => "$id/md5" , $md5;
		712	db_put cache => "$id/meta", $meta;
		713
		714	return $data;
		715	}
		716
		717	db_get cache => "$id/data"
		718	}
		719
		720	=item cf::datalog type => key => value, ...
		721
		722	Log a datalog packet of the given type with the given key-value pairs.
		723
		724	=cut
		725
		726	sub datalog($@) {
		727	my ($type, %kv) = @_;
		728	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
322	}	729	}
323		730
324	=back	731	=back
325		732
326	=cut	733	=cut
327		734
328	#############################################################################	735	#############################################################################
329		736
330	package cf::path;
331
332	sub new {
333	my ($class, $path, $base) = @_;
334
335	$path = $path->as_string if ref $path;
336
337	my $self = bless { }, $class;
338
339	# {... are special paths that are not touched
340	# ?xxx/... are special absolute paths
341	# ?random/... random maps
342	# /! non-realised random map exit
343	# /... normal maps
344	# ~/... per-player maps without a specific player (DO NOT USE)
345	# ~user/... per-player map of a specific user
346
347	if ($path =~ /^{/) {
348	# fine as it is
349	} elsif ($path =~ s{^\?random/}{}) {
350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
351	$self->{random} = cf::from_json $data;
352	} else {
353	if ($path =~ s{^~([^/]+)?}{}) {
354	$self->{user_rel} = 1;
355
356	if (defined $1) {
357	$self->{user} = $1;
358	} elsif ($base =~ m{^~([^/]+)/}) {
359	$self->{user} = $1;
360	} else {
361	warn "cannot resolve user-relative path without user <$path,$base>\n";
362	}
363	} elsif ($path =~ /^\//) {
364	# already absolute
365	} else {
366	$base =~ s{[^/]+/?$}{};
367	return $class->new ("$base/$path");
368	}
369
370	for ($path) {
371	redo if s{/\.?/}{/};
372	redo if s{/[^/]+/\.\./}{/};
373	}
374	}
375
376	$self->{path} = $path;
377
378	$self
379	}
380
381	# the name / primary key / in-game path
382	sub as_string {
383	my ($self) = @_;
384
385	$self->{user_rel} ? "~$self->{user}$self->{path}"
386	: $self->{random} ? "?random/$self->{path}"
387	: $self->{path}
388	}
389
390	# the displayed name, this is a one way mapping
391	sub visible_name {
392	my ($self) = @_;
393
394	# if (my $rmp = $self->{random}) {
395	# # todo: be more intelligent about this
396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
397	# } else {
398	$self->as_string
399	# }
400	}
401
402	# escape the /'s in the path
403	sub _escaped_path {
404	# ∕ is U+2215
405	(my $path = $_[0]{path}) =~ s/\//∕/g;
406	$path
407	}
408
409	# the original (read-only) location
410	sub load_path {
411	my ($self) = @_;
412
413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
414	}
415
416	# the temporary/swap location
417	sub save_path {
418	my ($self) = @_;
419
420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
423	}
424
425	# the unique path, might be eq to save_path
426	sub uniq_path {
427	my ($self) = @_;
428
429	$self->{user_rel} || $self->{random}
430	? undef
431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
432	}
433
434	# return random map parameters, or undef
435	sub random_map_params {
436	my ($self) = @_;
437
438	$self->{random}
439	}
440
441	# this is somewhat ugly, but style maps do need special treatment
442	sub is_style_map {
443	$_[0]{path} =~ m{^/styles/}
444	}
445
446	package cf;
447
448	#############################################################################
449
450	=head2 ATTACHABLE OBJECTS	737	=head2 ATTACHABLE OBJECTS
451		738
452	Many objects in crossfire are so-called attachable objects. That means you can	739	Many objects in deliantra are so-called attachable objects. That means you can
453	attach callbacks/event handlers (a collection of which is called an "attachment")	740	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	741	to it. All such attachable objects support the following methods.
455		742
456	In the following description, CLASS can be any of C<global>, C<object>	743	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	744	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	745	Deliantra).
459		746
460	=over 4	747	=over 4
461		748
462	=item $attachable->attach ($attachment, key => $value...)	749	=item $attachable->attach ($attachment, key => $value...)
463		750
…		…
507	=item cf::CLASS::attachment $name, ...	794	=item cf::CLASS::attachment $name, ...
508		795
509	Register an attachment by C<$name> through which attachable objects of the	796	Register an attachment by C<$name> through which attachable objects of the
510	given CLASS can refer to this attachment.	797	given CLASS can refer to this attachment.
511		798
512	Some classes such as crossfire maps and objects can specify attachments	799	Some classes such as deliantra maps and objects can specify attachments
513	that are attached at load/instantiate time, thus the need for a name.	800	that are attached at load/instantiate time, thus the need for a name.
514		801
515	These calls expect any number of the following handler/hook descriptions:	802	These calls expect any number of the following handler/hook descriptions:
516		803
517	=over 4	804	=over 4
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	864	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	865	our @CB_MAP = ();
579		866
580	my %attachment;	867	my %attachment;
581		868
		869	sub cf::attachable::thawer_merge {
		870	# simply override everything except _meta
		871	local $_[0]{_meta};
		872	%{$_[0]} = %{$_[1]};
		873	}
		874
582	sub _attach_cb($$$$) {	875	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	876	my ($registry, $event, $prio, $cb) = @_;
584		877
585	use sort 'stable';	878	use sort 'stable';
586		879
…		…
620	$registry = $CB_TYPE[$object_type] ||= [];	913	$registry = $CB_TYPE[$object_type] ||= [];
621		914
622	} elsif ($type eq "subtype") {	915	} elsif ($type eq "subtype") {
623	defined $object_type or Carp::croak "subtype specified without type";	916	defined $object_type or Carp::croak "subtype specified without type";
624	my $object_subtype = shift @arg;	917	my $object_subtype = shift @arg;
625	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	918	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
626		919
627	} elsif ($type eq "package") {	920	} elsif ($type eq "package") {
628	my $pkg = shift @arg;	921	my $pkg = shift @arg;
629		922
630	while (my ($name, $id) = each %cb_id) {	923	while (my ($name, $id) = each %cb_id) {
…		…
659	_attach $registry, $klass, @attach;	952	_attach $registry, $klass, @attach;
660	}	953	}
661		954
662	$obj->{$name} = \%arg;	955	$obj->{$name} = \%arg;
663	} else {	956	} else {
664	warn "object uses attachment '$name' that is not available, postponing.\n";	957	warn "object uses attachment '$name' which is not available, postponing.\n";
665	}	958	}
666		959
667	$obj->{_attachment}{$name} = undef;	960	$obj->{_attachment}{$name} = undef;
668	}	961	}
669		962
…		…
671	if (ref $_[0]) {	964	if (ref $_[0]) {
672	_object_attach @_;	965	_object_attach @_;
673	} else {	966	} else {
674	_attach shift->_attach_registry, @_;	967	_attach shift->_attach_registry, @_;
675	}	968	}
		969	_recalc_want;
676	};	970	};
677		971
678	# all those should be optimised	972	# all those should be optimised
679	sub cf::attachable::detach {	973	sub cf::attachable::detach {
680	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
…		…
683	delete $obj->{_attachment}{$name};	977	delete $obj->{_attachment}{$name};
684	reattach ($obj);	978	reattach ($obj);
685	} else {	979	} else {
686	Carp::croak "cannot, currently, detach class attachments";	980	Carp::croak "cannot, currently, detach class attachments";
687	}	981	}
		982	_recalc_want;
688	};	983	};
689		984
690	sub cf::attachable::attached {	985	sub cf::attachable::attached {
691	my ($obj, $name) = @_;	986	my ($obj, $name) = @_;
692		987
…		…
707	";	1002	";
708	die if $@;	1003	die if $@;
709	}	1004	}
710		1005
711	our $override;	1006	our $override;
712	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1007	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
713		1008
714	sub override {	1009	sub override {
715	$override = 1;	1010	$override = 1;
716	@invoke_results = ();	1011	@INVOKE_RESULTS = (@_);
717	}	1012	}
718		1013
719	sub do_invoke {	1014	sub do_invoke {
720	my $event = shift;	1015	my $event = shift;
721	my $callbacks = shift;	1016	my $callbacks = shift;
722		1017
723	@invoke_results = ();	1018	@INVOKE_RESULTS = ();
724		1019
725	local $override;	1020	local $override;
726		1021
727	for (@$callbacks) {	1022	for (@$callbacks) {
728	eval { &{$_->[1]} };	1023	eval { &{$_->[1]} };
…		…
737	}	1032	}
738		1033
739	0	1034	0
740	}	1035	}
741		1036
742	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1037	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
743		1038
744	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1039	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
745		1040
746	Generate an object-specific event with the given arguments.	1041	Generate an object-specific event with the given arguments.
747		1042
748	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1043	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
749	removed in future versions), and there is no public API to access override	1044	removed in future versions), and there is no public API to access override
750	results (if you must, access C<@cf::invoke_results> directly).	1045	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
751		1046
752	=back	1047	=back
753		1048
754	=cut	1049	=cut
755		1050
756	#############################################################################	1051	#############################################################################
757	# object support	1052	# object support
		1053
		1054	sub _object_equal($$);
		1055	sub _object_equal($$) {
		1056	my ($a, $b) = @_;
		1057
		1058	return 0 unless (ref $a) eq (ref $b);
		1059
		1060	if ("HASH" eq ref $a) {
		1061	my @ka = keys %$a;
		1062	my @kb = keys %$b;
		1063
		1064	return 0 if @ka != @kb;
		1065
		1066	for (0 .. $#ka) {
		1067	return 0 unless $ka[$_] eq $kb[$_];
		1068	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1069	}
		1070
		1071	} elsif ("ARRAY" eq ref $a) {
		1072
		1073	return 0 if @$a != @$b;
		1074
		1075	for (0 .. $#$a) {
		1076	return 0 unless _object_equal $a->[$_], $b->[$_];
		1077	}
		1078
		1079	} elsif ($a ne $b) {
		1080	return 0;
		1081	}
		1082
		1083	1
		1084	}
		1085
		1086	our $SLOW_MERGES;#d#
		1087	sub _can_merge {
		1088	my ($ob1, $ob2) = @_;
		1089
		1090	++$SLOW_MERGES;#d#
		1091
		1092	# we do the slow way here
		1093	return _object_equal $ob1, $ob2
		1094	}
758		1095
759	sub reattach {	1096	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	1097	# basically do the same as instantiate, without calling instantiate
761	my ($obj) = @_;	1098	my ($obj) = @_;
		1099
		1100	# no longer needed after getting rid of delete_package?
		1101	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
762		1102
763	my $registry = $obj->registry;	1103	my $registry = $obj->registry;
764		1104
765	@$registry = ();	1105	@$registry = ();
766		1106
…		…
781	cf::attachable->attach (	1121	cf::attachable->attach (
782	prio => -1000000,	1122	prio => -1000000,
783	on_instantiate => sub {	1123	on_instantiate => sub {
784	my ($obj, $data) = @_;	1124	my ($obj, $data) = @_;
785		1125
786	$data = from_json $data;	1126	$data = decode_json $data;
787		1127
788	for (@$data) {	1128	for (@$data) {
789	my ($name, $args) = @$_;	1129	my ($name, $args) = @$_;
790		1130
791	$obj->attach ($name, %{$args || {} });	1131	$obj->attach ($name, %{$args || {} });
…		…
807	sub object_freezer_save {	1147	sub object_freezer_save {
808	my ($filename, $rdata, $objs) = @_;	1148	my ($filename, $rdata, $objs) = @_;
809		1149
810	sync_job {	1150	sync_job {
811	if (length $$rdata) {	1151	if (length $$rdata) {
		1152	utf8::decode (my $decname = $filename);
812	warn sprintf "saving %s (%d,%d)\n",	1153	warn sprintf "saving %s (%d,%d)\n",
813	$filename, length $$rdata, scalar @$objs;	1154	$decname, length $$rdata, scalar @$objs;
814		1155
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1156	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	1157	aio_chmod $fh, SAVE_MODE;
817	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1158	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
818	aio_fsync $fh;	1159	aio_fsync $fh if $cf::USE_FSYNC;
819	close $fh;	1160	aio_close $fh;
820		1161
821	if (@$objs) {	1162	if (@$objs) {
822	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1163	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	1164	aio_chmod $fh, SAVE_MODE;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	1165	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
825	aio_write $fh, 0, (length $data), $data, 0;	1166	aio_write $fh, 0, (length $data), $data, 0;
826	aio_fsync $fh;	1167	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1168	aio_close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	1169	aio_rename "$filename.pst~", "$filename.pst";
829	}	1170	}
830	} else {	1171	} else {
831	aio_unlink "$filename.pst";	1172	aio_unlink "$filename.pst";
832	}	1173	}
…		…
837	}	1178	}
838	} else {	1179	} else {
839	aio_unlink $filename;	1180	aio_unlink $filename;
840	aio_unlink "$filename.pst";	1181	aio_unlink "$filename.pst";
841	}	1182	}
842	}	1183	};
843	}	1184	}
844		1185
845	sub object_freezer_as_string {	1186	sub object_freezer_as_string {
846	my ($rdata, $objs) = @_;	1187	my ($rdata, $objs) = @_;
847		1188
…		…
859	or return;	1200	or return;
860		1201
861	unless (aio_stat "$filename.pst") {	1202	unless (aio_stat "$filename.pst") {
862	(aio_load "$filename.pst", $av) >= 0	1203	(aio_load "$filename.pst", $av) >= 0
863	or return;	1204	or return;
		1205
864	$av = eval { (Storable::thaw $av)->{objs} };	1206	my $st = eval { Coro::Storable::thaw $av };
		1207	$av = $st->{objs};
865	}	1208	}
866		1209
		1210	utf8::decode (my $decname = $filename);
867	warn sprintf "loading %s (%d)\n",	1211	warn sprintf "loading %s (%d,%d)\n",
868	$filename, length $data, scalar @{$av || []};#d#	1212	$decname, length $data, scalar @{$av || []};
		1213
869	return ($data, $av);	1214	($data, $av)
870	}	1215	}
		1216
		1217	=head2 COMMAND CALLBACKS
		1218
		1219	=over 4
		1220
		1221	=cut
871		1222
872	#############################################################################	1223	#############################################################################
873	# command handling &c	1224	# command handling &c
874		1225
875	=item cf::register_command $name => \&callback($ob,$args);	1226	=item cf::register_command $name => \&callback($ob,$args);
…		…
888	push @{ $COMMAND{$name} }, [$caller, $cb];	1239	push @{ $COMMAND{$name} }, [$caller, $cb];
889	}	1240	}
890		1241
891	=item cf::register_extcmd $name => \&callback($pl,$packet);	1242	=item cf::register_extcmd $name => \&callback($pl,$packet);
892		1243
893	Register a callbackf ro execution when the client sends an extcmd packet.	1244	Register a callback for execution when the client sends an (synchronous)
		1245	extcmd packet. Ext commands will be processed in the order they are
		1246	received by the server, like other user commands. The first argument is
		1247	the logged-in player. Ext commands can only be processed after a player
		1248	has logged in successfully.
894		1249
895	If the callback returns something, it is sent back as if reply was being	1250	If the callback returns something, it is sent back as if reply was being
896	called.	1251	called.
897		1252
		1253	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1254
		1255	Register a callback for execution when the client sends an (asynchronous)
		1256	exticmd packet. Exti commands are processed by the server as soon as they
		1257	are received, i.e. out of order w.r.t. other commands. The first argument
		1258	is a client socket. Exti commands can be received anytime, even before
		1259	log-in.
		1260
		1261	If the callback returns something, it is sent back as if reply was being
		1262	called.
		1263
898	=cut	1264	=cut
899		1265
900	sub register_extcmd {	1266	sub register_extcmd {
901	my ($name, $cb) = @_;	1267	my ($name, $cb) = @_;
902		1268
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	1269	$EXTCMD{$name} = $cb;
		1270	}
		1271
		1272	sub register_exticmd {
		1273	my ($name, $cb) = @_;
		1274
		1275	$EXTICMD{$name} = $cb;
907	}	1276	}
908		1277
909	cf::player->attach (	1278	cf::player->attach (
910	on_command => sub {	1279	on_command => sub {
911	my ($pl, $name, $params) = @_;	1280	my ($pl, $name, $params) = @_;
…		…
920	cf::override;	1289	cf::override;
921	},	1290	},
922	on_extcmd => sub {	1291	on_extcmd => sub {
923	my ($pl, $buf) = @_;	1292	my ($pl, $buf) = @_;
924		1293
925	my $msg = eval { from_json $buf };	1294	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
926		1295
927	if (ref $msg) {	1296	if (ref $msg) {
		1297	my ($type, $reply, @payload) =
		1298	"ARRAY" eq ref $msg
		1299	? @$msg
		1300	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1301
		1302	my @reply;
		1303
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1304	if (my $cb = $EXTCMD{$type}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	1305	@reply = $cb->($pl, @payload);
930	$pl->ext_reply ($msg->{msgid}, %reply);
931	}
932	}	1306	}
		1307
		1308	$pl->ext_reply ($reply, @reply)
		1309	if $reply;
		1310
933	} else {	1311	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1312	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
935	}	1313	}
936		1314
937	cf::override;	1315	cf::override;
938	},	1316	},
939	);	1317	);
940		1318
941	sub register {
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	sub load_extension {	1319	sub load_extensions {
		1320	cf::sync_job {
		1321	my %todo;
		1322
		1323	for my $path (<$LIBDIR/*.ext>) {
		1324	next unless -r $path;
		1325
		1326	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1327	my $base = $1;
		1328	my $pkg = $1;
		1329	$pkg =~ s/[^[:word:]]/_/g;
		1330	$pkg = "ext::$pkg";
		1331
		1332	open my $fh, "<:utf8", $path
		1333	or die "$path: $!";
		1334
		1335	my $source = do { local $/; <$fh> };
		1336
		1337	my %ext = (
		1338	path => $path,
		1339	base => $base,
		1340	pkg => $pkg,
		1341	);
		1342
		1343	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1344	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1345
		1346	$ext{source} =
		1347	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1348	. "#line 1 \"$path\"\n{\n"
		1349	. $source
		1350	. "\n};\n1";
		1351
		1352	$todo{$base} = \%ext;
		1353	}
		1354
		1355	my %done;
		1356	while (%todo) {
		1357	my $progress;
		1358
		1359	while (my ($k, $v) = each %todo) {
		1360	for (split /,\s*/, $v->{meta}{depends}) {
		1361	goto skip
		1362	unless exists $done{$_};
		1363	}
		1364
		1365	warn "... loading '$k' into '$v->{pkg}'\n";
		1366
		1367	unless (eval $v->{source}) {
		1368	my $msg = $@ ? "$v->{path}: $@\n"
		1369	: "$v->{base}: extension inactive.\n";
		1370
		1371	if (exists $v->{meta}{mandatory}) {
		1372	warn $msg;
		1373	cf::cleanup "mandatory extension failed to load, exiting.";
		1374	}
		1375
		1376	warn $msg;
		1377	}
		1378
		1379	$done{$k} = delete $todo{$k};
		1380	push @EXTS, $v->{pkg};
		1381	$progress = 1;
		1382	}
		1383
		1384	skip:
		1385	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1386	unless $progress;
		1387	}
		1388	};
		1389	}
		1390
		1391	#############################################################################
		1392
		1393	=back
		1394
		1395	=head2 CORE EXTENSIONS
		1396
		1397	Functions and methods that extend core deliantra objects.
		1398
		1399	=cut
		1400
		1401	package cf::player;
		1402
		1403	use Coro::AIO;
		1404
		1405	=head3 cf::player
		1406
		1407	=over 4
		1408
		1409	=item cf::player::num_playing
		1410
		1411	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1412
		1413	=cut
		1414
		1415	sub num_playing {
		1416	scalar grep
		1417	$_->ob->map
		1418	&& !$_->hidden
		1419	&& !$_->ob->flag (cf::FLAG_WIZ),
		1420	cf::player::list
		1421	}
		1422
		1423	=item cf::player::find $login
		1424
		1425	Returns the given player object, loading it if necessary (might block).
		1426
		1427	=cut
		1428
		1429	sub playerdir($) {
		1430	"$PLAYERDIR/"
		1431	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1432	}
		1433
		1434	sub path($) {
		1435	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1436
		1437	(playerdir $login) . "/playerdata"
		1438	}
		1439
		1440	sub find_active($) {
		1441	$cf::PLAYER{$_[0]}
		1442	and $cf::PLAYER{$_[0]}->active
		1443	and $cf::PLAYER{$_[0]}
		1444	}
		1445
		1446	sub exists($) {
		1447	my ($login) = @_;
		1448
		1449	$cf::PLAYER{$login}
		1450	or !aio_stat path $login
		1451	}
		1452
		1453	sub find($) {
		1454	return $cf::PLAYER{$_[0]} || do {
		1455	my $login = $_[0];
		1456
		1457	my $guard = cf::lock_acquire "user_find:$login";
		1458
		1459	$cf::PLAYER{$_[0]} || do {
		1460	# rename old playerfiles to new ones
		1461	#TODO: remove when no longer required
		1462	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1463	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1464	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1465	aio_unlink +(playerdir $login) . "/$login.pl";
		1466
		1467	my $f = new_from_file cf::object::thawer path $login
		1468	or return;
		1469
		1470	my $pl = cf::player::load_pl $f
		1471	or return;
		1472
		1473	local $cf::PLAYER_LOADING{$login} = $pl;
		1474	$f->resolve_delayed_derefs;
		1475	$cf::PLAYER{$login} = $pl
		1476	}
		1477	}
		1478	}
		1479
		1480	sub save($) {
		1481	my ($pl) = @_;
		1482
		1483	return if $pl->{deny_save};
		1484
		1485	my $path = path $pl;
		1486	my $guard = cf::lock_acquire "user_save:$path";
		1487
		1488	return if $pl->{deny_save};
		1489
		1490	aio_mkdir playerdir $pl, 0770;
		1491	$pl->{last_save} = $cf::RUNTIME;
		1492
		1493	cf::get_slot 0.01;
		1494
		1495	$pl->save_pl ($path);
		1496	cf::cede_to_tick;
		1497	}
		1498
		1499	sub new($) {
		1500	my ($login) = @_;
		1501
		1502	my $self = create;
		1503
		1504	$self->ob->name ($login);
		1505	$self->{deny_save} = 1;
		1506
		1507	$cf::PLAYER{$login} = $self;
		1508
		1509	$self
		1510	}
		1511
		1512	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1513
		1514	=cut
		1515
		1516	sub send_msg {
		1517	my $ns = shift->ns
		1518	or return;
		1519	$ns->send_msg (@_);
		1520	}
		1521
		1522	=item $pl->quit_character
		1523
		1524	Nukes the player without looking back. If logged in, the connection will
		1525	be destroyed. May block for a long time.
		1526
		1527	=cut
		1528
		1529	sub quit_character {
		1530	my ($pl) = @_;
		1531
		1532	my $name = $pl->ob->name;
		1533
		1534	$pl->{deny_save} = 1;
		1535	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1536
		1537	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1538	$pl->deactivate;
		1539	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1540	$pl->ob->check_score;
		1541	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1542	$pl->ns->destroy if $pl->ns;
		1543
		1544	my $path = playerdir $pl;
		1545	my $temp = "$path~$cf::RUNTIME~deleting~";
		1546	aio_rename $path, $temp;
		1547	delete $cf::PLAYER{$pl->ob->name};
		1548	$pl->destroy;
		1549
		1550	my $prefix = qr<^~\Q$name\E/>;
		1551
		1552	# nuke player maps
		1553	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1554
		1555	IO::AIO::aio_rmtree $temp;
		1556	}
		1557
		1558	=item $pl->kick
		1559
		1560	Kicks a player out of the game. This destroys the connection.
		1561
		1562	=cut
		1563
		1564	sub kick {
		1565	my ($pl, $kicker) = @_;
		1566
		1567	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1568	$pl->killer ("kicked");
		1569	$pl->ns->destroy;
		1570	}
		1571
		1572	=item cf::player::list_logins
		1573
		1574	Returns am arrayref of all valid playernames in the system, can take a
		1575	while and may block, so not sync_job-capable, ever.
		1576
		1577	=cut
		1578
		1579	sub list_logins {
		1580	my $dirs = aio_readdir $PLAYERDIR
		1581	or return [];
		1582
		1583	my @logins;
		1584
		1585	for my $login (@$dirs) {
		1586	my $path = path $login;
		1587
		1588	# a .pst is a dead give-away for a valid player
		1589	# if no pst file found, open and chekc for blocked users
		1590	if (aio_stat "$path.pst") {
		1591	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1592	aio_read $fh, 0, 512, my $buf, 0 or next;
		1593	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1594	}
		1595
		1596	utf8::decode $login;
		1597	push @logins, $login;
		1598	}
		1599
		1600	\@logins
		1601	}
		1602
		1603	=item $player->maps
		1604
		1605	Returns an arrayref of map paths that are private for this
		1606	player. May block.
		1607
		1608	=cut
		1609
		1610	sub maps($) {
		1611	my ($pl) = @_;
		1612
		1613	$pl = ref $pl ? $pl->ob->name : $pl;
		1614
		1615	my $files = aio_readdir playerdir $pl
		1616	or return;
		1617
		1618	my @paths;
		1619
		1620	for (@$files) {
		1621	utf8::decode $_;
		1622	next if /\.(?:pl|pst)$/;
		1623	next unless /^$PATH_SEP/o;
		1624
		1625	push @paths, cf::map::normalise "~$pl/$_";
		1626	}
		1627
		1628	\@paths
		1629	}
		1630
		1631	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1632
		1633	Expand deliantra pod fragments into protocol xml.
		1634
		1635	=item $player->ext_reply ($msgid, @msg)
		1636
		1637	Sends an ext reply to the player.
		1638
		1639	=cut
		1640
		1641	sub ext_reply($$@) {
		1642	my ($self, $id, @msg) = @_;
		1643
		1644	$self->ns->ext_reply ($id, @msg)
		1645	}
		1646
		1647	=item $player->ext_msg ($type, @msg)
		1648
		1649	Sends an ext event to the client.
		1650
		1651	=cut
		1652
		1653	sub ext_msg($$@) {
		1654	my ($self, $type, @msg) = @_;
		1655
		1656	$self->ns->ext_msg ($type, @msg);
		1657	}
		1658
		1659	=head3 cf::region
		1660
		1661	=over 4
		1662
		1663	=cut
		1664
		1665	package cf::region;
		1666
		1667	=item cf::region::find_by_path $path
		1668
		1669	Tries to decuce the likely region for a map knowing only its path.
		1670
		1671	=cut
		1672
		1673	sub find_by_path($) {
948	my ($path) = @_;	1674	my ($path) = @_;
949		1675
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1676	my ($match, $specificity);
951	my $base = $1;
952	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955		1677
956	warn "loading '$path' into '$pkg'\n";	1678	for my $region (list) {
957		1679	if ($region->{match} && $path =~ $region->{match}) {
958	open my $fh, "<:utf8", $path	1680	($match, $specificity) = ($region, $region->specificity)
959	or die "$path: $!";	1681	if $region->specificity > $specificity;
960		1682	}
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	eval $source
968	or die $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970
971	push @exts, $pkg;
972	$ext_pkg{$base} = $pkg;
973
974	# no strict 'refs';
975	# @{"$pkg\::ISA"} = ext::;
976
977	register $base, $pkg;
978	}
979
980	sub unload_extension {
981	my ($pkg) = @_;
982
983	warn "removing extension $pkg\n";
984
985	# remove hooks
986	#TODO
987	# for my $idx (0 .. $#PLUGIN_EVENT) {
988	# delete $hook[$idx]{$pkg};
989	# }	1683	}
990		1684
991	# remove commands	1685	$match
992	for my $name (keys %COMMAND) {
993	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
994
995	if (@cb) {
996	$COMMAND{$name} = \@cb;
997	} else {
998	delete $COMMAND{$name};
999	}
1000	}
1001
1002	# remove extcmds
1003	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1004	delete $EXTCMD{$name};
1005	}
1006
1007	if (my $cb = $pkg->can ("unload")) {
1008	eval {
1009	$cb->($pkg);
1010	1
1011	} or warn "$pkg unloaded, but with errors: $@";
1012	}
1013
1014	Symbol::delete_package $pkg;
1015	}
1016
1017	sub load_extensions {
1018	for my $ext (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;
1020	eval {
1021	load_extension $ext;
1022	1
1023	} or warn "$ext not loaded: $@";
1024	}
1025	}
1026
1027	#############################################################################
1028	# load/save/clean perl data associated with a map
1029
1030	*cf::mapsupport::on_clean = sub {
1031	my ($map) = @_;
1032
1033	my $path = $map->tmpname;
1034	defined $path or return;
1035
1036	unlink "$path.pst";
1037	};
1038
1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1040
1041	#############################################################################
1042	# load/save perl data associated with player->ob objects
1043
1044	sub all_objects(@) {
1045	@_, map all_objects ($_->inv), @_
1046	}
1047
1048	# TODO: compatibility cruft, remove when no longer needed
1049	cf::player->attach (
1050	on_load => sub {
1051	my ($pl, $path) = @_;
1052
1053	for my $o (all_objects $pl->ob) {
1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1055	$o->set_ob_key_value ("_perl_data");
1056
1057	%$o = %{ Storable::thaw pack "H*", $value };
1058	}
1059	}
1060	},
1061	);
1062
1063	#############################################################################
1064
1065	=head2 CORE EXTENSIONS
1066
1067	Functions and methods that extend core crossfire objects.
1068
1069	=head3 cf::player
1070
1071	=over 4
1072
1073	=item cf::player::exists $login
1074
1075	Returns true when the given account exists.
1076
1077	=cut
1078
1079	sub cf::player::exists($) {
1080	cf::player::find $_[0]
1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1082	}
1083
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)
1085
1086	Sends an ext reply to the player.
1087
1088	=cut
1089
1090	sub cf::player::ext_reply($$$%) {
1091	my ($self, $id, %msg) = @_;
1092
1093	$msg{msgid} = $id;
1094
1095	$self->send ("ext " . to_json \%msg);
1096	}	1686	}
1097		1687
1098	=back	1688	=back
1099
1100		1689
1101	=head3 cf::map	1690	=head3 cf::map
1102		1691
1103	=over 4	1692	=over 4
1104		1693
…		…
1107	package cf::map;	1696	package cf::map;
1108		1697
1109	use Fcntl;	1698	use Fcntl;
1110	use Coro::AIO;	1699	use Coro::AIO;
1111		1700
		1701	use overload
		1702	'""' => \&as_string,
		1703	fallback => 1;
		1704
1112	our $MAX_RESET = 3600;	1705	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1706	our $DEFAULT_RESET = 3000;
1114		1707
1115	sub generate_random_map {	1708	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1709	my ($self, $rmp) = @_;
		1710
		1711	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1117		1712
1118	# mit "rum" bekleckern, nicht	1713	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1714	$self->_create_random_map (
1120	$path,
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1715	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1716	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1717	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},	1718	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},	1719	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1720	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1721	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1722	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1723	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1724	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})	1725	(cf::region::find $rmp->{region}), $rmp->{custom}
		1726	)
		1727	}
		1728
		1729	=item cf::map->register ($regex, $prio)
		1730
		1731	Register a handler for the map path matching the given regex at the
		1732	givne priority (higher is better, built-in handlers have priority 0, the
		1733	default).
		1734
		1735	=cut
		1736
		1737	sub register {
		1738	my (undef, $regex, $prio) = @_;
		1739	my $pkg = caller;
		1740
		1741	no strict;
		1742	push @{"$pkg\::ISA"}, __PACKAGE__;
		1743
		1744	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1745	}
		1746
		1747	# also paths starting with '/'
		1748	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1749
		1750	sub thawer_merge {
		1751	my ($self, $merge) = @_;
		1752
		1753	# we have to keep some variables in memory intact
		1754	local $self->{path};
		1755	local $self->{load_path};
		1756
		1757	$self->SUPER::thawer_merge ($merge);
		1758	}
		1759
		1760	sub normalise {
		1761	my ($path, $base) = @_;
		1762
		1763	$path = "$path"; # make sure its a string
		1764
		1765	$path =~ s/\.map$//;
		1766
		1767	# map plan:
		1768	#
		1769	# /! non-realised random map exit (special hack!)
		1770	# {... are special paths that are not being touched
		1771	# ?xxx/... are special absolute paths
		1772	# ?random/... random maps
		1773	# /... normal maps
		1774	# ~user/... per-player map of a specific user
		1775
		1776	$path =~ s/$PATH_SEP/\//go;
		1777
		1778	# treat it as relative path if it starts with
		1779	# something that looks reasonable
		1780	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1781	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1782
		1783	$base =~ s{[^/]+/?$}{};
		1784	$path = "$base/$path";
		1785	}
		1786
		1787	for ($path) {
		1788	redo if s{//}{/};
		1789	redo if s{/\.?/}{/};
		1790	redo if s{/[^/]+/\.\./}{/};
		1791	}
		1792
		1793	$path
		1794	}
		1795
		1796	sub new_from_path {
		1797	my (undef, $path, $base) = @_;
		1798
		1799	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1800
		1801	$path = normalise $path, $base;
		1802
		1803	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1804	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1805	my $self = bless cf::map::new, $pkg;
		1806	$self->{path} = $path; $self->path ($path);
		1807	$self->init; # pass $1 etc.
		1808	return $self;
		1809	}
		1810	}
		1811
		1812	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1813	()
		1814	}
		1815
		1816	sub init {
		1817	my ($self) = @_;
		1818
		1819	$self
		1820	}
		1821
		1822	sub as_string {
		1823	my ($self) = @_;
		1824
		1825	"$self->{path}"
		1826	}
		1827
		1828	# the displayed name, this is a one way mapping
		1829	sub visible_name {
		1830	&as_string
		1831	}
		1832
		1833	# the original (read-only) location
		1834	sub load_path {
		1835	my ($self) = @_;
		1836
		1837	"$MAPDIR/$self->{path}.map"
		1838	}
		1839
		1840	# the temporary/swap location
		1841	sub save_path {
		1842	my ($self) = @_;
		1843
		1844	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1845	"$TMPDIR/$path.map"
		1846	}
		1847
		1848	# the unique path, undef == no special unique path
		1849	sub uniq_path {
		1850	my ($self) = @_;
		1851
		1852	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1853	"$UNIQUEDIR/$path"
1132	}	1854	}
1133		1855
1134	# and all this just because we cannot iterate over	1856	# and all this just because we cannot iterate over
1135	# all maps in C++...	1857	# all maps in C++...
1136	sub change_all_map_light {	1858	sub change_all_map_light {
…		…
1138		1860
1139	$_->change_map_light ($change)	1861	$_->change_map_light ($change)
1140	for grep $_->outdoor, values %cf::MAP;	1862	for grep $_->outdoor, values %cf::MAP;
1141	}	1863	}
1142		1864
		1865	sub decay_objects {
		1866	my ($self) = @_;
		1867
		1868	return if $self->{deny_reset};
		1869
		1870	$self->do_decay_objects;
		1871	}
		1872
		1873	sub unlink_save {
		1874	my ($self) = @_;
		1875
		1876	utf8::encode (my $save = $self->save_path);
		1877	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1878	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1879	}
		1880
1143	sub try_load_header($) {	1881	sub load_header_from($) {
1144	my ($path) = @_;	1882	my ($self, $path) = @_;
1145		1883
1146	utf8::encode $path;	1884	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	1885	my $f = new_from_file cf::object::thawer $path
1148	or return;	1886	or return;
1149		1887
1150	my $map = cf::map::new	1888	$self->_load_header ($f)
1151	or return;	1889	or return;
1152		1890
1153	# for better error messages only, will be overwritten	1891	local $MAP_LOADING{$self->{path}} = $self;
1154	$map->path ($path);	1892	$f->resolve_delayed_derefs;
1155		1893
1156	$map->load_header ($path)	1894	$self->{load_path} = $path;
		1895
		1896	1
		1897	}
		1898
		1899	sub load_header_orig {
		1900	my ($self) = @_;
		1901
		1902	$self->load_header_from ($self->load_path)
		1903	}
		1904
		1905	sub load_header_temp {
		1906	my ($self) = @_;
		1907
		1908	$self->load_header_from ($self->save_path)
		1909	}
		1910
		1911	sub prepare_temp {
		1912	my ($self) = @_;
		1913
		1914	$self->last_access ((delete $self->{last_access})
		1915	|| $cf::RUNTIME); #d#
		1916	# safety
		1917	$self->{instantiate_time} = $cf::RUNTIME
		1918	if $self->{instantiate_time} > $cf::RUNTIME;
		1919	}
		1920
		1921	sub prepare_orig {
		1922	my ($self) = @_;
		1923
		1924	$self->{load_original} = 1;
		1925	$self->{instantiate_time} = $cf::RUNTIME;
		1926	$self->last_access ($cf::RUNTIME);
		1927	$self->instantiate;
		1928	}
		1929
		1930	sub load_header {
		1931	my ($self) = @_;
		1932
		1933	if ($self->load_header_temp) {
		1934	$self->prepare_temp;
		1935	} else {
		1936	$self->load_header_orig
1157	or return;	1937	or return;
		1938	$self->prepare_orig;
		1939	}
1158		1940
1159	$map->{load_path} = $path;	1941	$self->{deny_reset} = 1
		1942	if $self->no_reset;
1160		1943
1161	$map	1944	$self->default_region (cf::region::find_by_path $self->{path})
		1945	unless $self->default_region;
		1946
		1947	1
1162	}	1948	}
1163		1949
1164	sub find;	1950	sub find;
1165	sub find {	1951	sub find {
1166	my ($path, $origin) = @_;	1952	my ($path, $origin) = @_;
1167		1953
1168	#warn "find<$path,$origin>\n";#d#
1169
1170	$path = new cf::path $path, $origin && $origin->path;	1954	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		1955
		1956	cf::lock_wait "map_data:$path";#d#remove
1173	cf::lock_wait "map_find:$key";	1957	cf::lock_wait "map_find:$path";
1174		1958
1175	$cf::MAP{$key} || do {	1959	$cf::MAP{$path} || do {
		1960	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1176	my $guard = cf::lock_acquire "map_find:$key";	1961	my $guard2 = cf::lock_acquire "map_find:$path";
1177		1962
1178	# do it the slow way	1963	my $map = new_from_path cf::map $path
1179	my $map = try_load_header $path->save_path;
1180
1181	Coro::cede;
1182
1183	if ($map) {
1184	$map->last_access ((delete $map->{last_access})
1185	|| $cf::RUNTIME); #d#
1186	# safety
1187	$map->{instantiate_time} = $cf::RUNTIME
1188	if $map->{instantiate_time} > $cf::RUNTIME;
1189	} else {
1190	if (my $rmp = $path->random_map_params) {
1191	$map = generate_random_map $key, $rmp;
1192	} else {
1193	$map = try_load_header $path->load_path;
1194	}
1195
1196	$map or return;	1964	or return;
1197		1965
1198	$map->{load_original} = 1;
1199	$map->{instantiate_time} = $cf::RUNTIME;
1200	$map->last_access ($cf::RUNTIME);
1201	$map->instantiate;
1202
1203	# per-player maps become, after loading, normal maps
1204	$map->per_player (0) if $path->{user_rel};
1205	}
1206
1207	$map->path ($key);
1208	$map->{path} = $path;
1209	$map->{last_save} = $cf::RUNTIME;	1966	$map->{last_save} = $cf::RUNTIME;
1210		1967
1211	Coro::cede;	1968	$map->load_header
		1969	or return;
1212		1970
1213	if ($map->should_reset) {	1971	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1972	# doing this can freeze the server in a sync job, obviously
		1973	#$cf::WAIT_FOR_TICK->wait;
		1974	undef $guard2;
		1975	undef $guard1;
1214	$map->reset;	1976	$map->reset;
1215	undef $guard;
1216	$map = find $path	1977	return find $path;
1217	or return;
1218	}	1978	}
1219		1979
1220	$cf::MAP{$key} = $map	1980	$cf::MAP{$path} = $map
1221	}	1981	}
1222	}	1982	}
		1983
		1984	sub pre_load { }
		1985	sub post_load { }
1223		1986
1224	sub load {	1987	sub load {
1225	my ($self) = @_;	1988	my ($self) = @_;
1226		1989
		1990	local $self->{deny_reset} = 1; # loading can take a long time
		1991
1227	my $path = $self->{path};	1992	my $path = $self->{path};
		1993
		1994	{
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1995	my $guard = cf::lock_acquire "map_data:$path";
1229		1996
		1997	return unless $self->valid;
1230	return if $self->in_memory != cf::MAP_SWAPPED;	1998	return unless $self->in_memory == cf::MAP_SWAPPED;
1231		1999
1232	$self->in_memory (cf::MAP_LOADING);	2000	$self->in_memory (cf::MAP_LOADING);
1233		2001
1234	$self->alloc;	2002	$self->alloc;
1235	$self->load_objects ($self->{load_path}, 1)	2003
		2004	$self->pre_load;
		2005	cf::cede_to_tick;
		2006
		2007	my $f = new_from_file cf::object::thawer $self->{load_path};
		2008	$f->skip_block;
		2009	$self->_load_objects ($f)
1236	or return;	2010	or return;
1237		2011
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2012	$self->post_load_original
1239	if delete $self->{load_original};	2013	if delete $self->{load_original};
1240		2014
1241	if (my $uniq = $path->uniq_path) {	2015	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	2016	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	2017	unless (aio_stat $uniq) {
		2018	if (my $f = new_from_file cf::object::thawer $uniq) {
1244	$self->clear_unique_items;	2019	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	2020	$self->_load_objects ($f);
		2021	$f->resolve_delayed_derefs;
		2022	}
1246	}	2023	}
1247	}	2024	}
1248		2025
1249	Coro::cede;	2026	$f->resolve_delayed_derefs;
1250		2027
		2028	cf::cede_to_tick;
1251	# now do the right thing for maps	2029	# now do the right thing for maps
1252	$self->link_multipart_objects;	2030	$self->link_multipart_objects;
1253
1254	if ($self->{path}->is_style_map) {
1255	$self->{deny_save} = 1;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;
1261	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	2031	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	2032	unless $self->difficulty;
		2033	cf::cede_to_tick;
		2034
		2035	unless ($self->{deny_activate}) {
		2036	$self->decay_objects;
		2037	$self->fix_auto_apply;
		2038	$self->update_buttons;
		2039	cf::cede_to_tick;
		2040	$self->set_darkness_map;
		2041	cf::cede_to_tick;
1264	$self->activate;	2042	$self->activate;
1265	}	2043	}
1266		2044
1267	Coro::cede;	2045	$self->{last_save} = $cf::RUNTIME;
		2046	$self->last_access ($cf::RUNTIME);
1268		2047
1269	$self->in_memory (cf::MAP_IN_MEMORY);	2048	$self->in_memory (cf::MAP_ACTIVE);
		2049	}
		2050
		2051	$self->post_load;
		2052	}
		2053
		2054	sub customise_for {
		2055	my ($self, $ob) = @_;
		2056
		2057	return find "~" . $ob->name . "/" . $self->{path}
		2058	if $self->per_player;
		2059
		2060	# return find "?party/" . $ob->name . "/" . $self->{path}
		2061	# if $self->per_party;
		2062
		2063	$self
		2064	}
		2065
		2066	# find and load all maps in the 3x3 area around a map
		2067	sub load_neighbours {
		2068	my ($map) = @_;
		2069
		2070	my @neigh; # diagonal neighbours
		2071
		2072	for (0 .. 3) {
		2073	my $neigh = $map->tile_path ($_)
		2074	or next;
		2075	$neigh = find $neigh, $map
		2076	or next;
		2077	$neigh->load;
		2078
		2079	push @neigh,
		2080	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2081	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2082	}
		2083
		2084	for (grep defined $_->[0], @neigh) {
		2085	my ($path, $origin) = @$_;
		2086	my $neigh = find $path, $origin
		2087	or next;
		2088	$neigh->load;
		2089	}
1270	}	2090	}
1271		2091
1272	sub find_sync {	2092	sub find_sync {
1273	my ($path, $origin) = @_;	2093	my ($path, $origin) = @_;
1274		2094
1275	cf::sync_job {	2095	cf::sync_job { find $path, $origin }
1276	my $map = cf::map::find $path, $origin;
1277	$map
1278	}
1279	}	2096	}
1280		2097
1281	sub do_load_sync {	2098	sub do_load_sync {
1282	my ($map) = @_;	2099	my ($map) = @_;
1283		2100
		2101	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2102	if $Coro::current == $Coro::main;
		2103
1284	cf::sync_job { $map->load };	2104	cf::sync_job { $map->load };
		2105	}
		2106
		2107	our %MAP_PREFETCH;
		2108	our $MAP_PREFETCHER = undef;
		2109
		2110	sub find_async {
		2111	my ($path, $origin, $load) = @_;
		2112
		2113	$path = normalise $path, $origin && $origin->{path};
		2114
		2115	if (my $map = $cf::MAP{$path}) {
		2116	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2117	}
		2118
		2119	$MAP_PREFETCH{$path} |= $load;
		2120
		2121	$MAP_PREFETCHER ||= cf::async {
		2122	$Coro::current->{desc} = "map prefetcher";
		2123
		2124	while (%MAP_PREFETCH) {
		2125	while (my ($k, $v) = each %MAP_PREFETCH) {
		2126	if (my $map = find $k) {
		2127	$map->load if $v;
		2128	}
		2129
		2130	delete $MAP_PREFETCH{$k};
		2131	}
		2132	}
		2133	undef $MAP_PREFETCHER;
		2134	};
		2135	$MAP_PREFETCHER->prio (6);
		2136
		2137	()
1285	}	2138	}
1286		2139
1287	sub save {	2140	sub save {
1288	my ($self) = @_;	2141	my ($self) = @_;
1289		2142
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	2143	my $lock = cf::lock_acquire "map_data:$self->{path}";
1291		2144
1292	$self->{last_save} = $cf::RUNTIME;	2145	$self->{last_save} = $cf::RUNTIME;
1293		2146
1294	return unless $self->dirty;	2147	return unless $self->dirty;
1295		2148
1296	my $save = $self->{path}->save_path; utf8::encode $save;	2149	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2150	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		2151
1299	$self->{load_path} = $save;	2152	$self->{load_path} = $save;
1300		2153
1301	return if $self->{deny_save};	2154	return if $self->{deny_save};
1302		2155
1303	local $self->{last_access} = $self->last_access;#d#	2156	local $self->{last_access} = $self->last_access;#d#
1304		2157
		2158	cf::async {
		2159	$Coro::current->{desc} = "map player save";
		2160	$_->contr->save for $self->players;
		2161	};
		2162
		2163	cf::get_slot 0.02;
		2164
1305	if ($uniq) {	2165	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2166	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	2167	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	2168	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2169	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	2170	}
1311	}	2171	}
1312		2172
1313	sub swap_out {	2173	sub swap_out {
1314	my ($self) = @_;	2174	my ($self) = @_;
1315		2175
1316	# save first because save cedes	2176	# save first because save cedes
1317	$self->save;	2177	$self->save;
1318		2178
1319	my $lock = cf::lock_acquire "map_data:" . $self->path;	2179	my $lock = cf::lock_acquire "map_data:$self->{path}";
1320		2180
1321	return if $self->players;	2181	return if $self->players;
1322	return if $self->in_memory != cf::MAP_IN_MEMORY;	2182	return if $self->in_memory != cf::MAP_ACTIVE;
1323	return if $self->{deny_save};	2183	return if $self->{deny_save};
1324		2184
		2185	$self->in_memory (cf::MAP_SWAPPED);
		2186
		2187	$self->deactivate;
		2188	$_->clear_links_to ($self) for values %cf::MAP;
1325	$self->clear;	2189	$self->clear;
1326	$self->in_memory (cf::MAP_SWAPPED);
1327	}	2190	}
1328		2191
1329	sub reset_at {	2192	sub reset_at {
1330	my ($self) = @_;	2193	my ($self) = @_;
1331		2194
1332	# TODO: safety, remove and allow resettable per-player maps	2195	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};
1334	return 1e99 if $self->{deny_reset};	2196	return 1e99 if $self->{deny_reset};
1335		2197
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2198	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2199	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		2200
…		…
1343	my ($self) = @_;	2205	my ($self) = @_;
1344		2206
1345	$self->reset_at <= $cf::RUNTIME	2207	$self->reset_at <= $cf::RUNTIME
1346	}	2208	}
1347		2209
1348	sub unlink_save {
1349	my ($self) = @_;
1350
1351	utf8::encode (my $save = $self->{path}->save_path);
1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1354	}
1355
1356	sub rename {
1357	my ($self, $new_path) = @_;
1358
1359	$self->unlink_save;
1360
1361	delete $cf::MAP{$self->path};
1362	$self->{path} = new cf::path $new_path;
1363	$self->path ($self->{path}->as_string);
1364	$cf::MAP{$self->path} = $self;
1365
1366	$self->save;
1367	}
1368
1369	sub reset {	2210	sub reset {
1370	my ($self) = @_;	2211	my ($self) = @_;
1371		2212
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		2214
1374	return if $self->players;	2215	return if $self->players;
1375	return if $self->{path}{user_rel};#d#
1376		2216
1377	warn "resetting map ", $self->path;#d#	2217	warn "resetting map ", $self->path;
		2218
		2219	$self->in_memory (cf::MAP_SWAPPED);
		2220
		2221	# need to save uniques path
		2222	unless ($self->{deny_save}) {
		2223	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2224
		2225	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2226	if $uniq;
		2227	}
1378		2228
1379	delete $cf::MAP{$self->path};	2229	delete $cf::MAP{$self->path};
1380		2230
		2231	$self->deactivate;
1381	$_->clear_links_to ($self) for values %cf::MAP;	2232	$_->clear_links_to ($self) for values %cf::MAP;
		2233	$self->clear;
1382		2234
1383	$self->unlink_save;	2235	$self->unlink_save;
1384	$self->destroy;	2236	$self->destroy;
1385	}	2237	}
1386		2238
1387	my $nuke_counter = "aaaa";	2239	my $nuke_counter = "aaaa";
1388		2240
1389	sub nuke {	2241	sub nuke {
1390	my ($self) = @_;	2242	my ($self) = @_;
1391		2243
		2244	{
		2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2246
		2247	delete $cf::MAP{$self->path};
		2248
		2249	$self->unlink_save;
		2250
		2251	bless $self, "cf::map";
		2252	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	2253	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	2254	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	2255	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2256
		2257	$cf::MAP{$self->path} = $self;
		2258	}
		2259
1395	$self->reset; # polite request, might not happen	2260	$self->reset; # polite request, might not happen
1396	}	2261	}
1397		2262
1398	sub customise_for {	2263	=item $maps = cf::map::tmp_maps
1399	my ($map, $ob) = @_;
1400		2264
1401	if ($map->per_player) {	2265	Returns an arrayref with all map paths of currently instantiated and saved
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2266	maps. May block.
		2267
		2268	=cut
		2269
		2270	sub tmp_maps() {
1403	}	2271	[
1404		2272	map {
1405	$map	2273	utf8::decode $_;
		2274	/\.map$/
		2275	? normalise $_
		2276	: ()
		2277	} @{ aio_readdir $TMPDIR or [] }
		2278	]
1406	}	2279	}
1407		2280
1408	sub emergency_save {	2281	=item $maps = cf::map::random_maps
1409	my $freeze_guard = cf::freeze_mainloop;
1410		2282
1411	warn "enter emergency map save\n";	2283	Returns an arrayref with all map paths of currently instantiated and saved
		2284	random maps. May block.
1412		2285
1413	cf::sync_job {	2286	=cut
1414	warn "begin emergency map save\n";	2287
1415	$_->save for values %cf::MAP;	2288	sub random_maps() {
		2289	[
		2290	map {
		2291	utf8::decode $_;
		2292	/\.map$/
		2293	? normalise "?random/$_"
		2294	: ()
		2295	} @{ aio_readdir $RANDOMDIR or [] }
		2296	]
		2297	}
		2298
		2299	=item cf::map::unique_maps
		2300
		2301	Returns an arrayref of paths of all shared maps that have
		2302	instantiated unique items. May block.
		2303
		2304	=cut
		2305
		2306	sub unique_maps() {
		2307	[
		2308	map {
		2309	utf8::decode $_;
		2310	s/\.map$//; # TODO future compatibility hack
		2311	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2312	? ()
		2313	: normalise $_
		2314	} @{ aio_readdir $UNIQUEDIR or [] }
		2315	]
		2316	}
		2317
		2318	=back
		2319
		2320	=head3 cf::object
		2321
		2322	=cut
		2323
		2324	package cf::object;
		2325
		2326	=over 4
		2327
		2328	=item $ob->inv_recursive
		2329
		2330	Returns the inventory of the object I<and> their inventories, recursively,
		2331	but I<not> the object itself.
		2332
		2333	=cut
		2334
		2335	sub inv_recursive_;
		2336	sub inv_recursive_ {
		2337	map { $_, inv_recursive_ $_->inv } @_
		2338	}
		2339
		2340	sub inv_recursive {
		2341	inv_recursive_ inv $_[0]
		2342	}
		2343
		2344	=item $ref = $ob->ref
		2345
		2346	Creates and returns a persistent reference to an object that can be stored as a string.
		2347
		2348	=item $ob = cf::object::deref ($refstring)
		2349
		2350	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2351	even if the object actually exists. May block.
		2352
		2353	=cut
		2354
		2355	sub deref {
		2356	my ($ref) = @_;
		2357
		2358	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2359	my ($uuid, $name) = ($1, $2);
		2360	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2361	or return;
		2362	$pl->ob->uuid eq $uuid
		2363	or return;
		2364
		2365	$pl->ob
		2366	} else {
		2367	warn "$ref: cannot resolve object reference\n";
		2368	undef
1416	};	2369	}
1417
1418	warn "end emergency map save\n";
1419	}	2370	}
1420		2371
1421	package cf;	2372	package cf;
1422		2373
1423	=back	2374	=back
1424
1425		2375
1426	=head3 cf::object::player	2376	=head3 cf::object::player
1427		2377
1428	=over 4	2378	=over 4
1429		2379
…		…
1432	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2382	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1433	can be C<undef>. Does the right thing when the player is currently in a	2383	can be C<undef>. Does the right thing when the player is currently in a
1434	dialogue with the given NPC character.	2384	dialogue with the given NPC character.
1435		2385
1436	=cut	2386	=cut
		2387
		2388	our $SAY_CHANNEL = {
		2389	id => "say",
		2390	title => "Map",
		2391	reply => "say ",
		2392	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2393	};
		2394
		2395	our $CHAT_CHANNEL = {
		2396	id => "chat",
		2397	title => "Chat",
		2398	reply => "chat ",
		2399	tooltip => "Player chat and shouts, global to the server.",
		2400	};
1437		2401
1438	# rough implementation of a future "reply" method that works	2402	# rough implementation of a future "reply" method that works
1439	# with dialog boxes.	2403	# with dialog boxes.
1440	#TODO: the first argument must go, split into a $npc->reply_to ( method	2404	#TODO: the first argument must go, split into a $npc->reply_to ( method
1441	sub cf::object::player::reply($$$;$) {	2405	sub cf::object::player::reply($$$;$) {
…		…
1443		2407
1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1445		2409
1446	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1448	} else {	2413	} else {
		2414	my $pl = $self->contr;
		2415
		2416	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2417	my $dialog = $pl->{npc_dialog};
		2418	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2419
		2420	} else {
1449	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1450	$self->message ($msg, $flags);	2422	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2423	}
1451	}	2424	}
		2425	}
		2426
		2427	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2428
		2429	=cut
		2430
		2431	sub cf::object::send_msg {
		2432	my $pl = shift->contr
		2433	or return;
		2434	$pl->send_msg (@_);
1452	}	2435	}
1453		2436
1454	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1455		2438
1456	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
1469		2452
1470	=item $player_object->enter_link	2453	=item $player_object->enter_link
1471		2454
1472	Freezes the player and moves him/her to a special map (C<{link}>).	2455	Freezes the player and moves him/her to a special map (C<{link}>).
1473		2456
1474	The player should be reaosnably safe there for short amounts of time. You	2457	The player should be reasonably safe there for short amounts of time (e.g.
1475	I<MUST> call C<leave_link> as soon as possible, though.	2458	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2459	though, as the palyer cannot control the character while it is on the link
		2460	map.
		2461
		2462	Will never block.
1476		2463
1477	=item $player_object->leave_link ($map, $x, $y)	2464	=item $player_object->leave_link ($map, $x, $y)
1478		2465
1479	Moves the player out of the specila link map onto the given map. If the	2466	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	2467	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	2468	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	2469	fails, to the emergency map position.
1483		2470
1484	Might block.	2471	Might block.
1485		2472
1486	=cut	2473	=cut
		2474
		2475	sub link_map {
		2476	unless ($LINK_MAP) {
		2477	$LINK_MAP = cf::map::find "{link}"
		2478	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2479	$LINK_MAP->load;
		2480	}
		2481
		2482	$LINK_MAP
		2483	}
1487		2484
1488	sub cf::object::player::enter_link {	2485	sub cf::object::player::enter_link {
1489	my ($self) = @_;	2486	my ($self) = @_;
1490		2487
1491	$self->deactivate_recursive;	2488	$self->deactivate_recursive;
1492		2489
1493	return if $self->map == $LINK_MAP;	2490	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		2491
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2492	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	2493	if $self->map && $self->map->{path} ne "{link}";
1497		2494
1498	$self->enter_map ($LINK_MAP, 20, 20);	2495	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1499	}	2496	}
1500		2497
1501	sub cf::object::player::leave_link {	2498	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	2499	my ($self, $map, $x, $y) = @_;
		2500
		2501	return unless $self->contr->active;
1503		2502
1504	my $link_pos = delete $self->{_link_pos};	2503	my $link_pos = delete $self->{_link_pos};
1505		2504
1506	unless ($map) {	2505	unless ($map) {
1507	# restore original map position	2506	# restore original map position
…		…
1521	# use -1 or undef as default coordinates, not 0, 0	2520	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	2521	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	2522	if $x <=0 && $y <= 0;
1524		2523
1525	$map->load;	2524	$map->load;
		2525	$map->load_neighbours;
1526		2526
		2527	return unless $self->contr->active;
		2528	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1527	$self->activate_recursive;	2529	$self->activate_recursive;
		2530
		2531	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1528	$self->enter_map ($map, $x, $y);	2532	$self->enter_map ($map, $x, $y);
1529	}	2533	}
1530		2534
1531	cf::player->attach (	2535	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1532	on_logout => sub {
1533	my ($pl) = @_;
1534		2536
1535	# abort map switching before logout	2537	Moves the player to the given map-path and coordinates by first freezing
1536	if ($pl->ob->{_link_pos}) {	2538	her, loading and preparing them map, calling the provided $check callback
1537	cf::sync_job {	2539	that has to return the map if sucecssful, and then unfreezes the player on
1538	$pl->ob->leave_link	2540	the new (success) or old (failed) map position. In either case, $done will
1539	};	2541	be called at the end of this process.
1540	}
1541	},
1542	on_login => sub {
1543	my ($pl) = @_;
1544		2542
1545	# try to abort aborted map switching on player login :)	2543	Note that $check will be called with a potentially non-loaded map, so if
1546	# should happen only on crashes	2544	it needs a loaded map it has to call C<< ->load >>.
1547	if ($pl->ob->{_link_pos}) {
1548		2545
1549	$pl->ob->enter_link;
1550	(Coro::async_pool {
1551	# we need this sleep as the login has a concurrent enter_exit running
1552	# and this sleep increases chances of the player not ending up in scorn
1553	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;
1555	})->prio (2);
1556	}
1557	},
1558	);
1559
1560	=item $player_object->goto ($path, $x, $y)
1561
1562	=cut	2546	=cut
		2547
		2548	our $GOTOGEN;
1563		2549
1564	sub cf::object::player::goto {	2550	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	2551	my ($self, $path, $x, $y, $check, $done) = @_;
		2552
		2553	# do generation counting so two concurrent goto's will be executed in-order
		2554	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1566		2555
1567	$self->enter_link;	2556	$self->enter_link;
1568		2557
1569	(Coro::async_pool {	2558	(async {
1570	$path = new cf::path $path;	2559	$Coro::current->{desc} = "player::goto $path $x $y";
1571		2560
1572	my $map = cf::map::find $path->as_string;	2561	# *tag paths override both path and x|y
		2562	if ($path =~ /^\*(.*)$/) {
		2563	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2564	my $ob = $obs[rand @obs];
		2565
		2566	# see if we actually can go there
		2567	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2568	$ob = $obs[rand @obs];
		2569	} else {
		2570	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2571	}
		2572	# else put us there anyways for now #d#
		2573
		2574	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2575	} else {
		2576	($path, $x, $y) = (undef, undef, undef);
		2577	}
		2578	}
		2579
		2580	my $map = eval {
		2581	my $map = defined $path ? cf::map::find $path : undef;
		2582
		2583	if ($map) {
1573	$map = $map->customise_for ($self) if $map;	2584	$map = $map->customise_for ($self);
1574		2585	$map = $check->($map) if $check && $map;
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	2586	} else {
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2587	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	}
1579		2589
		2590	$map
		2591	};
		2592
		2593	if ($@) {
		2594	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2595	LOG llevError | logBacktrace, Carp::longmess $@;
		2596	}
		2597
		2598	if ($gen == $self->{_goto_generation}) {
		2599	delete $self->{_goto_generation};
1580	$self->leave_link ($map, $x, $y);	2600	$self->leave_link ($map, $x, $y);
		2601	}
		2602
		2603	$done->() if $done;
1581	})->prio (1);	2604	})->prio (1);
1582	}	2605	}
1583		2606
1584	=item $player_object->enter_exit ($exit_object)	2607	=item $player_object->enter_exit ($exit_object)
1585		2608
…		…
1587		2610
1588	sub parse_random_map_params {	2611	sub parse_random_map_params {
1589	my ($spec) = @_;	2612	my ($spec) = @_;
1590		2613
1591	my $rmp = { # defaults	2614	my $rmp = { # defaults
1592	xsize => 10,	2615	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	2616	ysize => (cf::rndm 15, 40),
		2617	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2618	#layout => string,
1594	};	2619	};
1595		2620
1596	for (split /\n/, $spec) {	2621	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	2622	my ($k, $v) = split /\s+/, $_, 2;
1598		2623
…		…
1610	# that depends on the exit object	2635	# that depends on the exit object
1611		2636
1612	my $rmp = parse_random_map_params $exit->msg;	2637	my $rmp = parse_random_map_params $exit->msg;
1613		2638
1614	if ($exit->map) {	2639	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	2640	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	2641	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	2642	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	2643	$rmp->{origin_y} = $exit->y;
		2644
		2645	$exit->map->touch;
1619	}	2646	}
1620		2647
1621	$rmp->{random_seed} ||= $exit->random_seed;	2648	$rmp->{random_seed} ||= $exit->random_seed;
1622		2649
1623	my $data = cf::to_json $rmp;	2650	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1624	my $md5 = Digest::MD5::md5_hex $data;	2651	my $md5 = Digest::MD5::md5_hex $data;
		2652	my $meta = "$RANDOMDIR/$md5.meta";
1625		2653
1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2654	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1627	aio_write $fh, 0, (length $data), $data, 0;	2655	aio_write $fh, 0, (length $data), $data, 0;
		2656	undef $fh;
		2657	aio_rename "$meta~", $meta;
1628		2658
		2659	my $slaying = "?random/$md5";
		2660
		2661	if ($exit->valid) {
1629	$exit->slaying ("?random/$md5");	2662	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	2663	$exit->msg (undef);
		2664	}
1631	}	2665	}
1632	}	2666	}
1633		2667
1634	sub cf::object::player::enter_exit {	2668	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	2669	my ($self, $exit) = @_;
1636		2670
1637	return unless $self->type == cf::PLAYER;	2671	return unless $self->type == cf::PLAYER;
1638		2672
1639	$self->enter_link;	2673	$self->enter_link;
1640		2674
1641	(Coro::async_pool {	2675	(async {
1642	$self->deactivate_recursive; # just to be sure	2676	$Coro::current->{desc} = "enter_exit";
		2677
1643	unless (eval {	2678	unless (eval {
		2679	$self->deactivate_recursive; # just to be sure
		2680
		2681	# random map handling
		2682	{
		2683	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2684
1644	prepare_random_map $exit	2685	prepare_random_map $exit
1645	if $exit->slaying eq "/!";	2686	if $exit->slaying eq "/!";
		2687	}
1646		2688
1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2689	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2690	my $x = $exit->stats->hp;
		2691	my $y = $exit->stats->sp;
1649		2692
		2693	$self->goto ($map, $x, $y);
		2694
		2695	# if exit is damned, update players death & WoR home-position
		2696	$self->contr->savebed ($map, $x, $y)
		2697	if $exit->flag (cf::FLAG_DAMNED);
		2698
1650	1;	2699	1
1651	}) {	2700	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	2701	$self->message ("Something went wrong deep within the deliantra server. "
1653	. "I'll try to bring you back to the map you were before. "	2702	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	2703	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	2704	cf::NDI_UNIQUE | cf::NDI_RED);
1656		2705
1657	warn "ERROR in enter_exit: $@";	2706	warn "ERROR in enter_exit: $@";
1658	$self->leave_link;	2707	$self->leave_link;
1659	}	2708	}
1660	})->prio (1);	2709	})->prio (1);
…		…
1673		2722
1674	sub cf::client::send_drawinfo {	2723	sub cf::client::send_drawinfo {
1675	my ($self, $text, $flags) = @_;	2724	my ($self, $text, $flags) = @_;
1676		2725
1677	utf8::encode $text;	2726	utf8::encode $text;
1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2727	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1679	}	2728	}
1680		2729
		2730	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2731
		2732	Send a drawinfo or msg packet to the client, formatting the msg for the
		2733	client if neccessary. C<$type> should be a string identifying the type of
		2734	the message, with C<log> being the default. If C<$color> is negative, suppress
		2735	the message unless the client supports the msg packet.
		2736
		2737	=cut
		2738
		2739	# non-persistent channels (usually the info channel)
		2740	our %CHANNEL = (
		2741	"c/identify" => {
		2742	id => "infobox",
		2743	title => "Identify",
		2744	reply => undef,
		2745	tooltip => "Items recently identified",
		2746	},
		2747	"c/examine" => {
		2748	id => "infobox",
		2749	title => "Examine",
		2750	reply => undef,
		2751	tooltip => "Signs and other items you examined",
		2752	},
		2753	"c/book" => {
		2754	id => "infobox",
		2755	title => "Book",
		2756	reply => undef,
		2757	tooltip => "The contents of a note or book",
		2758	},
		2759	"c/lookat" => {
		2760	id => "infobox",
		2761	title => "Look",
		2762	reply => undef,
		2763	tooltip => "What you saw there",
		2764	},
		2765	"c/who" => {
		2766	id => "infobox",
		2767	title => "Players",
		2768	reply => undef,
		2769	tooltip => "Shows players who are currently online",
		2770	},
		2771	"c/body" => {
		2772	id => "infobox",
		2773	title => "Body Parts",
		2774	reply => undef,
		2775	tooltip => "Shows which body parts you posess and are available",
		2776	},
		2777	"c/skills" => {
		2778	id => "infobox",
		2779	title => "Skills",
		2780	reply => undef,
		2781	tooltip => "Shows your experience per skill and item power",
		2782	},
		2783	"c/uptime" => {
		2784	id => "infobox",
		2785	title => "Uptime",
		2786	reply => undef,
		2787	tooltip => "How long the server has been running since last restart",
		2788	},
		2789	"c/mapinfo" => {
		2790	id => "infobox",
		2791	title => "Map Info",
		2792	reply => undef,
		2793	tooltip => "Information related to the maps",
		2794	},
		2795	"c/party" => {
		2796	id => "party",
		2797	title => "Party",
		2798	reply => "gsay ",
		2799	tooltip => "Messages and chat related to your party",
		2800	},
		2801	);
		2802
		2803	sub cf::client::send_msg {
		2804	my ($self, $channel, $msg, $color, @extra) = @_;
		2805
		2806	$msg = $self->pl->expand_cfpod ($msg)
		2807	unless $color & cf::NDI_VERBATIM;
		2808
		2809	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2810
		2811	# check predefined channels, for the benefit of C
		2812	if ($CHANNEL{$channel}) {
		2813	$channel = $CHANNEL{$channel};
		2814
		2815	$self->ext_msg (channel_info => $channel)
		2816	if $self->can_msg;
		2817
		2818	$channel = $channel->{id};
		2819
		2820	} elsif (ref $channel) {
		2821	# send meta info to client, if not yet sent
		2822	unless (exists $self->{channel}{$channel->{id}}) {
		2823	$self->{channel}{$channel->{id}} = $channel;
		2824	$self->ext_msg (channel_info => $channel)
		2825	if $self->can_msg;
		2826	}
		2827
		2828	$channel = $channel->{id};
		2829	}
		2830
		2831	return unless @extra || length $msg;
		2832
		2833	if ($self->can_msg) {
		2834	# default colour, mask it out
		2835	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2836	if $color & cf::NDI_DEF;
		2837
		2838	my $pkt = "msg "
		2839	. $self->{json_coder}->encode (
		2840	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2841	);
		2842
		2843	# try lzf for large packets
		2844	$pkt = "lzf " . Compress::LZF::compress $pkt
		2845	if 1024 <= length $pkt and $self->{can_lzf};
		2846
		2847	# split very large packets
		2848	if (8192 < length $pkt and $self->{can_lzf}) {
		2849	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2850	$pkt = "frag";
		2851	}
		2852
		2853	$self->send_packet ($pkt);
		2854	} else {
		2855	if ($color >= 0) {
		2856	# replace some tags by gcfclient-compatible ones
		2857	for ($msg) {
		2858	1 while
		2859	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2860	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2861	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2862	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2863	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2864	}
		2865
		2866	$color &= cf::NDI_COLOR_MASK;
		2867
		2868	utf8::encode $msg;
		2869
		2870	if (0 && $msg =~ /\[/) {
		2871	# COMMAND/INFO
		2872	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2873	} else {
		2874	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2875	$self->send_packet ("drawinfo $color $msg")
		2876	}
		2877	}
		2878	}
		2879	}
		2880
		2881	=item $client->ext_msg ($type, @msg)
		2882
		2883	Sends an ext event to the client.
		2884
		2885	=cut
		2886
		2887	sub cf::client::ext_msg($$@) {
		2888	my ($self, $type, @msg) = @_;
		2889
		2890	if ($self->extcmd == 2) {
		2891	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2892	} elsif ($self->extcmd == 1) { # TODO: remove
		2893	push @msg, msgtype => "event_$type";
		2894	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2895	}
		2896	}
		2897
		2898	=item $client->ext_reply ($msgid, @msg)
		2899
		2900	Sends an ext reply to the client.
		2901
		2902	=cut
		2903
		2904	sub cf::client::ext_reply($$@) {
		2905	my ($self, $id, @msg) = @_;
		2906
		2907	if ($self->extcmd == 2) {
		2908	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2909	} elsif ($self->extcmd == 1) {
		2910	#TODO: version 1, remove
		2911	unshift @msg, msgtype => "reply", msgid => $id;
		2912	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2913	}
		2914	}
1681		2915
1682	=item $success = $client->query ($flags, "text", \&cb)	2916	=item $success = $client->query ($flags, "text", \&cb)
1683		2917
1684	Queues a query to the client, calling the given callback with	2918	Queues a query to the client, calling the given callback with
1685	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2919	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1686	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2920	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1687		2921
1688	Queries can fail, so check the return code. Or don't, as queries will become	2922	Queries can fail, so check the return code. Or don't, as queries will
1689	reliable at some point in the future.	2923	become reliable at some point in the future.
1690		2924
1691	=cut	2925	=cut
1692		2926
1693	sub cf::client::query {	2927	sub cf::client::query {
1694	my ($self, $flags, $text, $cb) = @_;	2928	my ($self, $flags, $text, $cb) = @_;
…		…
1702	utf8::encode $text;	2936	utf8::encode $text;
1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2937	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1704		2938
1705	$self->send_packet ($self->{query_queue}[0][0])	2939	$self->send_packet ($self->{query_queue}[0][0])
1706	if @{ $self->{query_queue} } == 1;	2940	if @{ $self->{query_queue} } == 1;
		2941
		2942	1
1707	}	2943	}
1708		2944
1709	cf::client->attach (	2945	cf::client->attach (
		2946	on_connect => sub {
		2947	my ($ns) = @_;
		2948
		2949	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2950	},
1710	on_reply => sub {	2951	on_reply => sub {
1711	my ($ns, $msg) = @_;	2952	my ($ns, $msg) = @_;
1712		2953
1713	# this weird shuffling is so that direct followup queries	2954	# this weird shuffling is so that direct followup queries
1714	# get handled first	2955	# get handled first
1715	my $queue = delete $ns->{query_queue}	2956	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	2957	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		2958
1718	(shift @$queue)->[1]->($msg);	2959	(shift @$queue)->[1]->($msg);
		2960	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		2961
1720	push @{ $ns->{query_queue} }, @$queue;	2962	push @{ $ns->{query_queue} }, @$queue;
1721		2963
1722	if (@{ $ns->{query_queue} } == @$queue) {	2964	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	2965	if (@$queue) {
…		…
1725	} else {	2967	} else {
1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2968	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1727	}	2969	}
1728	}	2970	}
1729	},	2971	},
		2972	on_exticmd => sub {
		2973	my ($ns, $buf) = @_;
		2974
		2975	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2976
		2977	if (ref $msg) {
		2978	my ($type, $reply, @payload) =
		2979	"ARRAY" eq ref $msg
		2980	? @$msg
		2981	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2982
		2983	my @reply;
		2984
		2985	if (my $cb = $EXTICMD{$type}) {
		2986	@reply = $cb->($ns, @payload);
		2987	}
		2988
		2989	$ns->ext_reply ($reply, @reply)
		2990	if $reply;
		2991
		2992	} else {
		2993	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2994	}
		2995
		2996	cf::override;
		2997	},
1730	);	2998	);
1731		2999
1732	=item $client->coro (\&cb)	3000	=item $client->async (\&cb)
1733		3001
1734	Create a new coroutine, running the specified callback. The coroutine will	3002	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	3003	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	3004	or loss of connection).
1737		3005
1738	=cut	3006	=cut
1739		3007
1740	sub cf::client::coro {	3008	sub cf::client::async {
1741	my ($self, $cb) = @_;	3009	my ($self, $cb) = @_;
1742		3010
1743	my $coro = &Coro::async_pool ($cb);	3011	my $coro = &Coro::async ($cb);
1744		3012
1745	$coro->on_destroy (sub {	3013	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	3014	delete $self->{_coro}{$coro+0};
1747	});	3015	});
1748		3016
…		…
1775	our $safe = new Safe "safe";	3043	our $safe = new Safe "safe";
1776	our $safe_hole = new Safe::Hole;	3044	our $safe_hole = new Safe::Hole;
1777		3045
1778	$SIG{FPE} = 'IGNORE';	3046	$SIG{FPE} = 'IGNORE';
1779		3047
1780	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3048	$safe->permit_only (Opcode::opset qw(
		3049	:base_core :base_mem :base_orig :base_math
		3050	grepstart grepwhile mapstart mapwhile
		3051	sort time
		3052	));
1781		3053
1782	# here we export the classes and methods available to script code	3054	# here we export the classes and methods available to script code
1783		3055
1784	=pod	3056	=pod
1785		3057
1786	The following fucntions and emthods are available within a safe environment:	3058	The following functions and methods are available within a safe environment:
1787		3059
1788	cf::object contr pay_amount pay_player map	3060	cf::object
		3061	contr pay_amount pay_player map x y force_find force_add destroy
		3062	insert remove name archname title slaying race decrease split
		3063
1789	cf::object::player player	3064	cf::object::player
1790	cf::player peaceful	3065	player
1791	cf::map trigger	3066
		3067	cf::player
		3068	peaceful
		3069
		3070	cf::map
		3071	trigger
1792		3072
1793	=cut	3073	=cut
1794		3074
1795	for (	3075	for (
1796	["cf::object" => qw(contr pay_amount pay_player map)],	3076	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3077	insert remove inv nrof name archname title slaying race
		3078	decrease split destroy change_exp)],
1797	["cf::object::player" => qw(player)],	3079	["cf::object::player" => qw(player)],
1798	["cf::player" => qw(peaceful)],	3080	["cf::player" => qw(peaceful)],
1799	["cf::map" => qw(trigger)],	3081	["cf::map" => qw(trigger)],
1800	) {	3082	) {
1801	no strict 'refs';	3083	no strict 'refs';
…		…
1872	=back	3154	=back
1873		3155
1874	=cut	3156	=cut
1875		3157
1876	#############################################################################	3158	#############################################################################
		3159	# the server's init and main functions
1877		3160
1878	=head2 EXTENSION DATABASE SUPPORT	3161	sub load_facedata($) {
		3162	my ($path) = @_;
1879		3163
1880	Crossfire maintains a very simple database for extension use. It can	3164	# HACK to clear player env face cache, we need some signal framework
1881	currently store anything that can be serialised using Storable, which	3165	# for this (global event?)
1882	excludes objects.	3166	%ext::player_env::MUSIC_FACE_CACHE = ();
1883		3167
1884	The parameter C<$family> should best start with the name of the extension	3168	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1885	using it, it should be unique.
1886		3169
1887	=over 4	3170	warn "loading facedata from $path\n";
1888		3171
1889	=item $hashref = cf::db_get $family	3172	my $facedata;
		3173	0 < aio_load $path, $facedata
		3174	or die "$path: $!";
1890		3175
1891	Return a hashref for use by the extension C<$family>, which can be	3176	$facedata = Coro::Storable::thaw $facedata;
1892	modified. After modifications, you have to call C<cf::db_dirty> or
1893	C<cf::db_sync>.
1894		3177
1895	=item $value = cf::db_get $family => $key	3178	$facedata->{version} == 2
		3179	or cf::cleanup "$path: version mismatch, cannot proceed.";
1896		3180
1897	Returns a single value from the database	3181	# patch in the exptable
1898		3182	$facedata->{resource}{"res/exp_table"} = {
1899	=item cf::db_put $family => $hashref	3183	type => FT_RSRC,
1900		3184	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1901	Stores the given family hashref into the database. Updates are delayed, if
1902	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_put $family => $key => $value
1905
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you
1907	want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_dirty
1910
1911	Marks the database as dirty, to be updated at a later time.
1912
1913	=item cf::db_sync
1914
1915	Immediately write the database to disk I<if it is dirty>.
1916
1917	=cut
1918
1919	our $DB;
1920
1921	{
1922	my $path = cf::localdir . "/database.pst";
1923
1924	sub db_load() {
1925	$DB = stat $path ? Storable::retrieve $path : { };
1926	}
1927
1928	my $pid;
1929
1930	sub db_save() {
1931	waitpid $pid, 0 if $pid;
1932	if (0 == ($pid = fork)) {
1933	$DB->{_meta}{version} = 1;
1934	Storable::nstore $DB, "$path~";
1935	rename "$path~", $path;
1936	cf::_exit 0 if defined $pid;
1937	}
1938	}
1939
1940	my $dirty;
1941
1942	sub db_sync() {
1943	db_save if $dirty;
1944	undef $dirty;
1945	}
1946
1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1948	db_sync;
1949	});	3185	};
		3186	cf::cede_to_tick;
1950		3187
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}	3188	{
		3189	my $faces = $facedata->{faceinfo};
1955		3190
1956	sub db_get($;$) {	3191	while (my ($face, $info) = each %$faces) {
1957	@_ >= 2	3192	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1958	? $DB->{$_[0]}{$_[1]}
1959	: ($DB->{$_[0]} ||= { })
1960	}
1961		3193
1962	sub db_put($$;$) {	3194	cf::face::set_visibility $idx, $info->{visibility};
1963	if (@_ >= 3) {	3195	cf::face::set_magicmap $idx, $info->{magicmap};
1964	$DB->{$_[0]}{$_[1]} = $_[2];	3196	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1965	} else {	3197	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1966	$DB->{$_[0]} = $_[1];
1967	}
1968	db_dirty;
1969	}
1970		3198
1971	cf::global->attach (	3199	cf::cede_to_tick;
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	3200	}
1976	);
1977	}
1978		3201
1979	#############################################################################	3202	while (my ($face, $info) = each %$faces) {
1980	# the server's main()	3203	next unless $info->{smooth};
1981		3204
1982	sub cfg_load {	3205	my $idx = cf::face::find $face
		3206	or next;
		3207
		3208	if (my $smooth = cf::face::find $info->{smooth}) {
		3209	cf::face::set_smooth $idx, $smooth;
		3210	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3211	} else {
		3212	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3213	}
		3214
		3215	cf::cede_to_tick;
		3216	}
		3217	}
		3218
		3219	{
		3220	my $anims = $facedata->{animinfo};
		3221
		3222	while (my ($anim, $info) = each %$anims) {
		3223	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3224	cf::cede_to_tick;
		3225	}
		3226
		3227	cf::anim::invalidate_all; # d'oh
		3228	}
		3229
		3230	{
		3231	# TODO: for gcfclient pleasure, we should give resources
		3232	# that gcfclient doesn't grok a >10000 face index.
		3233	my $res = $facedata->{resource};
		3234
		3235	while (my ($name, $info) = each %$res) {
		3236	if (defined $info->{type}) {
		3237	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3238	my $data;
		3239
		3240	if ($info->{type} & 1) {
		3241	# prepend meta info
		3242
		3243	my $meta = $enc->encode ({
		3244	name => $name,
		3245	%{ $info->{meta} || {} },
		3246	});
		3247
		3248	$data = pack "(w/a*)*", $meta, $info->{data};
		3249	} else {
		3250	$data = $info->{data};
		3251	}
		3252
		3253	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3254	cf::face::set_type $idx, $info->{type};
		3255	} else {
		3256	$RESOURCE{$name} = $info;
		3257	}
		3258
		3259	cf::cede_to_tick;
		3260	}
		3261	}
		3262
		3263	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3264
		3265	1
		3266	}
		3267
		3268	cf::global->attach (on_resource_update => sub {
		3269	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3270	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3271
		3272	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3273	my $sound = $soundconf->{compat}[$_]
		3274	or next;
		3275
		3276	my $face = cf::face::find "sound/$sound->[1]";
		3277	cf::sound::set $sound->[0] => $face;
		3278	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3279	}
		3280
		3281	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3282	my $face = cf::face::find "sound/$v";
		3283	cf::sound::set $k => $face;
		3284	}
		3285	}
		3286	});
		3287
		3288	register_exticmd fx_want => sub {
		3289	my ($ns, $want) = @_;
		3290
		3291	while (my ($k, $v) = each %$want) {
		3292	$ns->fx_want ($k, $v);
		3293	}
		3294	};
		3295
		3296	sub load_resource_file($) {
		3297	my $guard = lock_acquire "load_resource_file";
		3298
		3299	my $status = load_resource_file_ $_[0];
		3300	get_slot 0.1, 100;
		3301	cf::arch::commit_load;
		3302
		3303	$status
		3304	}
		3305
		3306	sub reload_regions {
		3307	# HACK to clear player env face cache, we need some signal framework
		3308	# for this (global event?)
		3309	%ext::player_env::MUSIC_FACE_CACHE = ();
		3310
		3311	load_resource_file "$MAPDIR/regions"
		3312	or die "unable to load regions file\n";
		3313
		3314	for (cf::region::list) {
		3315	$_->{match} = qr/$_->{match}/
		3316	if exists $_->{match};
		3317	}
		3318	}
		3319
		3320	sub reload_facedata {
		3321	load_facedata "$DATADIR/facedata"
		3322	or die "unable to load facedata\n";
		3323	}
		3324
		3325	sub reload_archetypes {
		3326	load_resource_file "$DATADIR/archetypes"
		3327	or die "unable to load archetypes\n";
		3328	}
		3329
		3330	sub reload_treasures {
		3331	load_resource_file "$DATADIR/treasures"
		3332	or die "unable to load treasurelists\n";
		3333	}
		3334
		3335	sub reload_resources {
		3336	warn "reloading resource files...\n";
		3337
		3338	reload_facedata;
		3339	reload_archetypes;
		3340	reload_regions;
		3341	reload_treasures;
		3342
		3343	warn "finished reloading resource files\n";
		3344	}
		3345
		3346	sub init {
		3347	my $guard = freeze_mainloop;
		3348
		3349	evthread_start IO::AIO::poll_fileno;
		3350
		3351	reload_resources;
		3352	}
		3353
		3354	sub reload_config {
1983	open my $fh, "<:utf8", cf::confdir . "/config"	3355	open my $fh, "<:utf8", "$CONFDIR/config"
1984	or return;	3356	or return;
1985		3357
1986	local $/;	3358	local $/;
1987	*CFG = YAML::Syck::Load <$fh>;	3359	*CFG = YAML::Load <$fh>;
1988		3360
1989	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3361	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1990		3362
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3363	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3364	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		3365
1994	if (exists $CFG{mlockall}) {	3366	if (exists $CFG{mlockall}) {
1995	eval {	3367	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	3368	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	3369	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	3370	};
1999	warn $@ if $@;	3371	warn $@ if $@;
2000	}	3372	}
2001	}	3373	}
2002		3374
		3375	sub pidfile() {
		3376	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3377	or die "$PIDFILE: $!";
		3378	flock $fh, &Fcntl::LOCK_EX
		3379	or die "$PIDFILE: flock: $!";
		3380	$fh
		3381	}
		3382
		3383	# make sure only one server instance is running at any one time
		3384	sub atomic {
		3385	my $fh = pidfile;
		3386
		3387	my $pid = <$fh>;
		3388	kill 9, $pid if $pid > 0;
		3389
		3390	seek $fh, 0, 0;
		3391	print $fh $$;
		3392	}
		3393
2003	sub main {	3394	sub main {
		3395	atomic;
		3396
2004	# we must not ever block the main coroutine	3397	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	3398	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3399	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	3400	(async {
		3401	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3402	EV::loop EV::LOOP_ONESHOT;
		3403	})->prio (Coro::PRIO_MAX);
2008	};	3404	};
2009		3405
2010	cfg_load;	3406	{
2011	db_load;	3407	my $guard = freeze_mainloop;
		3408	reload_config;
		3409	db_init;
2012	load_extensions;	3410	load_extensions;
		3411
		3412	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3413	}
		3414
		3415	utime time, time, $RUNTIMEFILE;
		3416
		3417	# no (long-running) fork's whatsoever before this point(!)
		3418	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3419
2013	Event::loop;	3420	EV::loop;
2014	}	3421	}
2015		3422
2016	#############################################################################	3423	#############################################################################
2017	# initialisation	3424	# initialisation and cleanup
2018		3425
		3426	# install some emergency cleanup handlers
		3427	BEGIN {
		3428	our %SIGWATCHER = ();
		3429	for my $signal (qw(INT HUP TERM)) {
		3430	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3431	cf::cleanup "SIG$signal";
		3432	};
		3433	}
		3434	}
		3435
		3436	sub write_runtime_sync {
		3437	# first touch the runtime file to show we are still running:
		3438	# the fsync below can take a very very long time.
		3439
		3440	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3441
		3442	my $guard = cf::lock_acquire "write_runtime";
		3443
		3444	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3445	or return;
		3446
		3447	my $value = $cf::RUNTIME + 90 + 10;
		3448	# 10 is the runtime save interval, for a monotonic clock
		3449	# 60 allows for the watchdog to kill the server.
		3450
		3451	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3452	and return;
		3453
		3454	# always fsync - this file is important
		3455	aio_fsync $fh
		3456	and return;
		3457
		3458	# touch it again to show we are up-to-date
		3459	aio_utime $fh, undef, undef;
		3460
		3461	close $fh
		3462	or return;
		3463
		3464	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3465	and return;
		3466
		3467	warn "runtime file written.\n";
		3468
		3469	1
		3470	}
		3471
		3472	our $uuid_lock;
		3473	our $uuid_skip;
		3474
		3475	sub write_uuid_sync($) {
		3476	$uuid_skip ||= $_[0];
		3477
		3478	return if $uuid_lock;
		3479	local $uuid_lock = 1;
		3480
		3481	my $uuid = "$LOCALDIR/uuid";
		3482
		3483	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3484	or return;
		3485
		3486	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3487	$uuid_skip = 0;
		3488
		3489	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3490	and return;
		3491
		3492	# always fsync - this file is important
		3493	aio_fsync $fh
		3494	and return;
		3495
		3496	close $fh
		3497	or return;
		3498
		3499	aio_rename "$uuid~", $uuid
		3500	and return;
		3501
		3502	warn "uuid file written ($value).\n";
		3503
		3504	1
		3505
		3506	}
		3507
		3508	sub write_uuid($$) {
		3509	my ($skip, $sync) = @_;
		3510
		3511	$sync ? write_uuid_sync $skip
		3512	: async { write_uuid_sync $skip };
		3513	}
		3514
		3515	sub emergency_save() {
		3516	my $freeze_guard = cf::freeze_mainloop;
		3517
		3518	warn "enter emergency perl save\n";
		3519
		3520	cf::sync_job {
		3521	# use a peculiar iteration method to avoid tripping on perl
		3522	# refcount bugs in for. also avoids problems with players
		3523	# and maps saved/destroyed asynchronously.
		3524	warn "begin emergency player save\n";
		3525	for my $login (keys %cf::PLAYER) {
		3526	my $pl = $cf::PLAYER{$login} or next;
		3527	$pl->valid or next;
		3528	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3529	$pl->save;
		3530	}
		3531	warn "end emergency player save\n";
		3532
		3533	warn "begin emergency map save\n";
		3534	for my $path (keys %cf::MAP) {
		3535	my $map = $cf::MAP{$path} or next;
		3536	$map->valid or next;
		3537	$map->save;
		3538	}
		3539	warn "end emergency map save\n";
		3540
		3541	warn "begin emergency database checkpoint\n";
		3542	BDB::db_env_txn_checkpoint $DB_ENV;
		3543	warn "end emergency database checkpoint\n";
		3544
		3545	warn "begin write uuid\n";
		3546	write_uuid_sync 1;
		3547	warn "end write uuid\n";
		3548	};
		3549
		3550	warn "leave emergency perl save\n";
		3551	}
		3552
		3553	sub post_cleanup {
		3554	my ($make_core) = @_;
		3555
		3556	warn Carp::longmess "post_cleanup backtrace"
		3557	if $make_core;
		3558
		3559	my $fh = pidfile;
		3560	unlink $PIDFILE if <$fh> == $$;
		3561	}
		3562
		3563	# a safer delete_package, copied from Symbol
		3564	sub clear_package($) {
		3565	my $pkg = shift;
		3566
		3567	# expand to full symbol table name if needed
		3568	unless ($pkg =~ /^main::.*::$/) {
		3569	$pkg = "main$pkg" if $pkg =~ /^::/;
		3570	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3571	$pkg .= '::' unless $pkg =~ /::$/;
		3572	}
		3573
		3574	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3575	my $stem_symtab = *{$stem}{HASH};
		3576
		3577	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3578	or return;
		3579
		3580	# clear all symbols
		3581	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3582	for my $name (keys %$leaf_symtab) {
		3583	_gv_clear *{"$pkg$name"};
		3584	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3585	}
		3586	warn "cleared package $pkg\n";#d#
		3587	}
		3588
2019	sub reload() {	3589	sub do_reload_perl() {
2020	# can/must only be called in main	3590	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	3591	if ($Coro::current != $Coro::main) {
2022	warn "can only reload from main coroutine\n";	3592	warn "can only reload from main coroutine";
2023	return;	3593	return;
2024	}	3594	}
2025		3595
		3596	return if $RELOAD++;
		3597
		3598	while ($RELOAD) {
2026	warn "reloading...";	3599	warn "reloading...";
2027		3600
2028	my $guard = freeze_mainloop;	3601	warn "entering sync_job";
		3602
		3603	cf::sync_job {
		3604	cf::write_runtime_sync; # external watchdog should not bark
2029	cf::emergency_save;	3605	cf::emergency_save;
		3606	cf::write_runtime_sync; # external watchdog should not bark
2030		3607
2031	eval {	3608	warn "syncing database to disk";
		3609	BDB::db_env_txn_checkpoint $DB_ENV;
		3610
2032	# if anything goes wrong in here, we should simply crash as we already saved	3611	# if anything goes wrong in here, we should simply crash as we already saved
2033		3612
2034	# cancel all watchers	3613	warn "flushing outstanding aio requests";
2035	for (Event::all_watchers) {	3614	while (IO::AIO::nreqs || BDB::nreqs) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;	3615	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2037	}
2038
2039	# cancel all extension coros
2040	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();
2042
2043	# unload all extensions
2044	for (@exts) {
2045	warn "unloading <$_>";
2046	unload_extension $_;
2047	}
2048
2049	# unload all modules loaded from $LIBDIR
2050	while (my ($k, $v) = each %INC) {
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2052
2053	warn "removing <$k>";
2054	delete $INC{$k};
2055
2056	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;
2058
2059	if (my $cb = $k->can ("unload_module")) {
2060	$cb->();
2061	}	3616	}
2062		3617
2063	Symbol::delete_package $k;	3618	warn "cancelling all extension coros";
		3619	$_->cancel for values %EXT_CORO;
		3620	%EXT_CORO = ();
		3621
		3622	warn "removing commands";
		3623	%COMMAND = ();
		3624
		3625	warn "removing ext/exti commands";
		3626	%EXTCMD = ();
		3627	%EXTICMD = ();
		3628
		3629	warn "unloading/nuking all extensions";
		3630	for my $pkg (@EXTS) {
		3631	warn "... unloading $pkg";
		3632
		3633	if (my $cb = $pkg->can ("unload")) {
		3634	eval {
		3635	$cb->($pkg);
		3636	1
		3637	} or warn "$pkg unloaded, but with errors: $@";
		3638	}
		3639
		3640	warn "... clearing $pkg";
		3641	clear_package $pkg;
2064	}	3642	}
2065		3643
2066	# sync database to disk	3644	warn "unloading all perl modules loaded from $LIBDIR";
2067	cf::db_sync;	3645	while (my ($k, $v) = each %INC) {
2068	IO::AIO::flush;	3646	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2069		3647
		3648	warn "... unloading $k";
		3649	delete $INC{$k};
		3650
		3651	$k =~ s/\.pm$//;
		3652	$k =~ s/\//::/g;
		3653
		3654	if (my $cb = $k->can ("unload_module")) {
		3655	$cb->();
		3656	}
		3657
		3658	clear_package $k;
		3659	}
		3660
2070	# get rid of safe::, as good as possible	3661	warn "getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	3662	clear_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3663	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		3664
2074	# remove register_script_function callbacks	3665	warn "unloading cf.pm \"a bit\"";
2075	# TODO
2076
2077	# unload cf.pm "a bit"
2078	delete $INC{"cf.pm"};	3666	delete $INC{"cf.pm"};
		3667	delete $INC{"cf/pod.pm"};
2079		3668
2080	# don't, removes xs symbols, too,	3669	# don't, removes xs symbols, too,
2081	# and global variables created in xs	3670	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	3671	#clear_package __PACKAGE__;
2083		3672
2084	# reload cf.pm	3673	warn "unload completed, starting to reload now";
		3674
2085	warn "reloading cf.pm";	3675	warn "reloading cf.pm";
2086	require cf;	3676	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3677	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2088		3678
2089	# load config and database again	3679	warn "loading config and database again";
2090	cf::cfg_load;	3680	cf::reload_config;
2091	cf::db_load;
2092		3681
2093	# load extensions
2094	warn "load extensions";	3682	warn "loading extensions";
2095	cf::load_extensions;	3683	cf::load_extensions;
2096		3684
2097	# reattach attachments to objects	3685	warn "reattaching attachments to objects/players";
		3686	_global_reattach; # objects, sockets
		3687	warn "reattaching attachments to maps";
		3688	reattach $_ for values %MAP;
		3689	warn "reattaching attachments to players";
		3690	reattach $_ for values %PLAYER;
		3691
		3692	warn "leaving sync_job";
		3693
		3694	1
		3695	} or do {
		3696	warn $@;
		3697	cf::cleanup "error while reloading, exiting.";
		3698	};
		3699
2098	warn "reattach";	3700	warn "reloaded";
2099	_global_reattach;	3701	--$RELOAD;
		3702	}
		3703	};
		3704
		3705	our $RELOAD_WATCHER; # used only during reload
		3706
		3707	sub reload_perl() {
		3708	# doing reload synchronously and two reloads happen back-to-back,
		3709	# coro crashes during coro_state_free->destroy here.
		3710
		3711	$RELOAD_WATCHER ||= EV::timer $TICK * 1.5, 0, sub {
		3712	do_reload_perl;
		3713	undef $RELOAD_WATCHER;
2100	};	3714	};
2101
2102	if ($@) {
2103	warn $@;
2104	warn "error while reloading, exiting.";
2105	exit 1;
2106	}
2107
2108	warn "reloaded successfully";
2109	};
2110
2111	#############################################################################
2112
2113	unless ($LINK_MAP) {
2114	$LINK_MAP = cf::map::new;
2115
2116	$LINK_MAP->width (41);
2117	$LINK_MAP->height (41);
2118	$LINK_MAP->alloc;
2119	$LINK_MAP->path ("{link}");
2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2122
2123	# dirty hack because... archetypes are not yet loaded
2124	Event->timer (
2125	after => 2,
2126	cb => sub {
2127	$_[0]->w->cancel;
2128
2129	# provide some exits "home"
2130	my $exit = cf::object::new "exit";
2131
2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2135
2136	$LINK_MAP->insert ($exit->clone, 19, 19);
2137	$LINK_MAP->insert ($exit->clone, 19, 20);
2138	$LINK_MAP->insert ($exit->clone, 19, 21);
2139	$LINK_MAP->insert ($exit->clone, 20, 19);
2140	$LINK_MAP->insert ($exit->clone, 20, 21);
2141	$LINK_MAP->insert ($exit->clone, 21, 19);
2142	$LINK_MAP->insert ($exit->clone, 21, 20);
2143	$LINK_MAP->insert ($exit->clone, 21, 21);
2144
2145	$exit->destroy;
2146	});
2147
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}	3715	}
2153
2154	register "<global>", __PACKAGE__;
2155		3716
2156	register_command "reload" => sub {	3717	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	3718	my ($who, $arg) = @_;
2158		3719
2159	if ($who->flag (FLAG_WIZ)) {	3720	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");
2161	reload;
2162	$who->message ("end of reload.");	3721	$who->message ("reloading server.");
		3722	async {
		3723	$Coro::current->{desc} = "perl_reload";
		3724	reload_perl;
		3725	};
2163	}	3726	}
2164	};	3727	};
2165		3728
2166	unshift @INC, $LIBDIR;	3729	unshift @INC, $LIBDIR;
2167		3730
2168	$TICK_WATCHER = Event->timer (	3731	my $bug_warning = 0;
2169	reentrant => 0,	3732
2170	prio => 0,	3733	our @WAIT_FOR_TICK;
2171	at => $NEXT_TICK || $TICK,	3734	our @WAIT_FOR_TICK_BEGIN;
2172	data => WF_AUTOCANCEL,	3735
2173	cb => sub {	3736	sub wait_for_tick {
		3737	return if tick_inhibit || $Coro::current == $Coro::main;
		3738
		3739	my $signal = new Coro::Signal;
		3740	push @WAIT_FOR_TICK, $signal;
		3741	$signal->wait;
		3742	}
		3743
		3744	sub wait_for_tick_begin {
		3745	return if tick_inhibit || $Coro::current == $Coro::main;
		3746
		3747	my $signal = new Coro::Signal;
		3748	push @WAIT_FOR_TICK_BEGIN, $signal;
		3749	$signal->wait;
		3750	}
		3751
		3752	sub tick {
		3753	if ($Coro::current != $Coro::main) {
		3754	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3755	unless ++$bug_warning > 10;
		3756	return;
		3757	}
		3758
2174	cf::server_tick; # one server iteration	3759	cf::server_tick; # one server iteration
2175	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;
2177		3760
2178	# if we are delayed by four ticks or more, skip them all	3761	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3762	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2180		3763	Coro::async_pool {
2181	$TICK_WATCHER->at ($NEXT_TICK);	3764	$Coro::current->{desc} = "runtime saver";
2182	$TICK_WATCHER->start;
2183	},
2184	);
2185
2186	IO::AIO::max_poll_time $TICK * 0.2;
2187
2188	Event->io (
2189	fd => IO::AIO::poll_fileno,
2190	poll => 'r',
2191	prio => 5,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195
2196	Event->timer (
2197	data => WF_AUTOCANCEL,
2198	after => 0,
2199	interval => 10,
2200	cb => sub {
2201	(Coro::unblock_sub {
2202	write_runtime	3765	write_runtime_sync
2203	or warn "ERROR: unable to write runtime file: $!";	3766	or warn "ERROR: unable to write runtime file: $!";
2204	})->();	3767	};
2205	},	3768	}
2206	);	3769
		3770	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3771	$sig->send;
		3772	}
		3773	while (my $sig = shift @WAIT_FOR_TICK) {
		3774	$sig->send;
		3775	}
		3776
		3777	$LOAD = ($NOW - $TICK_START) / $TICK;
		3778	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3779
		3780	if (0) {
		3781	if ($NEXT_TICK) {
		3782	my $jitter = $TICK_START - $NEXT_TICK;
		3783	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3784	warn "jitter $JITTER\n";#d#
		3785	}
		3786	}
		3787	}
		3788
		3789	{
		3790	# configure BDB
		3791
		3792	BDB::min_parallel 8;
		3793	BDB::max_poll_reqs $TICK * 0.1;
		3794	$AnyEvent::BDB::WATCHER->priority (1);
		3795
		3796	unless ($DB_ENV) {
		3797	$DB_ENV = BDB::db_env_create;
		3798	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3799	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3800	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3801	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3802	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3803
		3804	cf::sync_job {
		3805	eval {
		3806	BDB::db_env_open
		3807	$DB_ENV,
		3808	$BDBDIR,
		3809	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3810	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3811	0666;
		3812
		3813	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3814	};
		3815
		3816	cf::cleanup "db_env_open(db): $@" if $@;
		3817	};
		3818	}
		3819
		3820	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3821	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3822	};
		3823	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3824	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3825	};
		3826	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3827	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3828	};
		3829	}
		3830
		3831	{
		3832	# configure IO::AIO
		3833
		3834	IO::AIO::min_parallel 8;
		3835	IO::AIO::max_poll_time $TICK * 0.1;
		3836	undef $AnyEvent::AIO::WATCHER;
		3837	}
		3838
		3839	my $_log_backtrace;
		3840
		3841	sub _log_backtrace {
		3842	my ($msg, @addr) = @_;
		3843
		3844	$msg =~ s/\n//;
		3845
		3846	# limit the # of concurrent backtraces
		3847	if ($_log_backtrace < 2) {
		3848	++$_log_backtrace;
		3849	my $perl_bt = Carp::longmess $msg;
		3850	async {
		3851	$Coro::current->{desc} = "abt $msg";
		3852
		3853	my @bt = fork_call {
		3854	@addr = map { sprintf "%x", $_ } @addr;
		3855	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3856	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3857	or die "addr2line: $!";
		3858
		3859	my @funcs;
		3860	my @res = <$fh>;
		3861	chomp for @res;
		3862	while (@res) {
		3863	my ($func, $line) = splice @res, 0, 2, ();
		3864	push @funcs, "[$func] $line";
		3865	}
		3866
		3867	@funcs
		3868	};
		3869
		3870	LOG llevInfo, "[ABT] $perl_bt\n";
		3871	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3872	LOG llevInfo, "[ABT] $_\n" for @bt;
		3873	--$_log_backtrace;
		3874	};
		3875	} else {
		3876	LOG llevInfo, "[ABT] $msg\n";
		3877	LOG llevInfo, "[ABT] [suppressed]\n";
		3878	}
		3879	}
		3880
		3881	# load additional modules
		3882	use cf::pod;
2207		3883
2208	END { cf::emergency_save }	3884	END { cf::emergency_save }
2209		3885
2210	1	3886	1
2211		3887

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