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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs.
Revision 1.417 by root, Fri Apr 11 14:09:57 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
3	use utf8;	24	use utf8;
4	use strict;	25	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV 3.2;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro 3.3;	36	use Coro 4.50 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::EV;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
18	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
19		47
		48	use JSON::XS 2.01 ();
		49	use BDB ();
		50	use Data::Dumper;
20	use Digest::MD5;	51	use Digest::MD5;
21	use Fcntl;	52	use Fcntl;
		53	use YAML ();
22	use IO::AIO 2.31 ();	54	use IO::AIO 2.51 ();
23	use YAML::Syck ();
24	use Time::HiRes;	55	use Time::HiRes;
		56	use Compress::LZF;
		57	use Digest::MD5 ();
25		58
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	59	# configure various modules to our taste
		60	#
		61	$Storable::canonical = 1; # reduce rsync transfers
		62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;
30
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		66
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		68
35	our %COMMAND = ();	69	our %COMMAND = ();
36	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
		71
		72	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
		75	our %EXT_CORO = (); # coroutines bound to extensions
		76	our %EXT_MAP = (); # pluggable maps
38		77
		78	our $RELOAD; # number of reloads so far
39	our @EVENT;	79	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		80
42	our $TICK = MAX_TIME * 1e-6;	81	our $CONFDIR = confdir;
		82	our $DATADIR = datadir;
		83	our $LIBDIR = "$DATADIR/ext";
		84	our $PODDIR = "$DATADIR/pod";
		85	our $MAPDIR = "$DATADIR/" . mapdir;
		86	our $LOCALDIR = localdir;
		87	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		88	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		89	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		90	our $RANDOMDIR = "$LOCALDIR/random";
		91	our $BDBDIR = "$LOCALDIR/db";
		92	our %RESOURCE;
		93
		94	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	97	our $NEXT_TICK;
45	our $NOW;	98	our $USE_FSYNC = 1; # use fsync to write maps - default off
		99
		100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
		104	our $DB_ENV;
46		105
47	our %CFG;	106	our %CFG;
48		107
49	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
51		111
52	our %MAP; # all maps	112	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	113	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	114	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	115
56	our %EXT_CORO;	116	# used to convert map paths into valid unix filenames by replacing / by ∕
		117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		118
		119	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		120	our $LOADAVG; # same thing, but with alpha-smoothing
		121	our $JITTER; # average jitter
		122	our $TICK_START; # for load detecting purposes
57		123
58	binmode STDOUT;	124	binmode STDOUT;
59	binmode STDERR;	125	binmode STDERR;
60		126
61	# read virtual server time, if available	127	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
66	}	132	}
67		133
68	mkdir cf::localdir;	134	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		136
74	# a special map that is always available	137	our $EMERGENCY_POSITION;
75	our $LINK_MAP;	138
		139	sub cf::map::normalise;
76		140
77	#############################################################################	141	#############################################################################
78		142
79	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
80		144
…		…
87	=item $cf::RUNTIME	151	=item $cf::RUNTIME
88		152
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	153	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	154	every server tick.
91		155
92	=item $cf::LIBDIR	156	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		157	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		158	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		159
94	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	161	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		162	unique-items directory, player file directory, random maps directory and
		163	database environment.
96		164
97	=item $cf::NOW	165	=item $cf::NOW
98		166
99	The time of the last (current) server tick.	167	The time of the last (current) server tick.
100		168
101	=item $cf::TICK	169	=item $cf::TICK
102		170
103	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
104		172
		173	=item $cf::LOADAVG
		174
		175	The current CPU load on the server (alpha-smoothed), as a value between 0
		176	(none) and 1 (overloaded), indicating how much time is spent on processing
		177	objects per tick. Healthy values are < 0.5.
		178
		179	=item $cf::LOAD
		180
		181	The raw value load value from the last tick.
		182
105	=item %cf::CFG	183	=item %cf::CFG
106		184
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	186	from wherever your confdir points to.
		187
		188	=item cf::wait_for_tick, cf::wait_for_tick_begin
		189
		190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		191	returns directly I<after> the tick processing (and consequently, can only wake one process
		192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		193
		194	=item @cf::INVOKE_RESULTS
		195
		196	This array contains the results of the last C<invoke ()> call. When
		197	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		198	that call.
109		199
110	=back	200	=back
111		201
112	=cut	202	=cut
113		203
114	BEGIN {	204	BEGIN {
115	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	206	my $msg = join "", @_;
117	utf8::encode $msg;
118		207
119	$msg .= "\n"	208	$msg .= "\n"
120	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
121		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
122	LOG llevError, "cfperl: $msg";	213	LOG llevError, $msg;
123	};	214	};
124	}	215	}
		216
		217	$Coro::State::DIEHOOK = sub {
		218	return unless $^S eq 0; # "eq", not "=="
		219
		220	if ($Coro::current == $Coro::main) {#d#
		221	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		222	return;#d#
		223	}#d#
		224
		225	# kill coroutine otherwise
		226	warn Carp::longmess $_[0];
		227	Coro::terminate
		228	};
		229
		230	$SIG{__DIE__} = sub { }; #d#?
125		231
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	236	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		237	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	238	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		239
133	# we bless all objects into (empty) derived classes to force a method lookup	240	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	241	# within the Safe compartment.
135	for my $pkg (qw(	242	for my $pkg (qw(
136	cf::global cf::attachable	243	cf::global cf::attachable
…		…
141	)) {	248	)) {
142	no strict 'refs';	249	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	251	}
145		252
146	$Event::DIED = sub {	253	$EV::DIED = sub {
147	warn "error in event callback: @_";	254	warn "error in event callback: @_";
148	};	255	};
149		256
150	my %ext_pkg;	257	#############################################################################
151	my @exts;
152	my @hook;
153		258
154	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
155		260
156	=over 4	261	=over 4
157		262
158	=cut	263	=item dumpval $ref
159		264
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	265	=cut
161		266
		267	sub dumpval {
		268	eval {
		269	local $SIG{__DIE__};
		270	my $d;
		271	if (1) {
		272	$d = new Data::Dumper([$_[0]], ["*var"]);
		273	$d->Terse(1);
		274	$d->Indent(2);
		275	$d->Quotekeys(0);
		276	$d->Useqq(1);
		277	#$d->Bless(...);
		278	$d->Seen($_[1]) if @_ > 1;
		279	$d = $d->Dump();
		280	}
		281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		282	$d
		283	} || "[unable to dump $_[0]: '$@']";
		284	}
		285
162	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
163		287
164	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
165		289
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
174		291
175	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
176		293
177	=cut	294	=cut
178		295
179	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
181	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
		299	sub decode_json($) { $json_coder->decode ($_[0]) }
		300
		301	=item cf::lock_wait $string
		302
		303	Wait until the given lock is available. See cf::lock_acquire.
		304
		305	=item my $lock = cf::lock_acquire $string
		306
		307	Wait until the given lock is available and then acquires it and returns
		308	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		309	for example when the coroutine gets canceled), the lock is automatically
		310	returned.
		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
		315	Lock names should begin with a unique identifier (for example, cf::map::find
		316	uses map_find and cf::map::load uses map_load).
		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
		322	=cut
		323
		324	our %LOCK;
		325	our %LOCKER;#d#
		326
		327	sub lock_wait($) {
		328	my ($key) = @_;
		329
		330	if ($LOCKER{$key} == $Coro::current) {#d#
		331	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		332	return;#d#
		333	}#d#
		334
		335	# wait for lock, if any
		336	while ($LOCK{$key}) {
		337	push @{ $LOCK{$key} }, $Coro::current;
		338	Coro::schedule;
		339	}
182	}	340	}
		341
		342	sub lock_acquire($) {
		343	my ($key) = @_;
		344
		345	# wait, to be sure we are not locked
		346	lock_wait $key;
		347
		348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
		350
		351	Coro::guard {
		352	delete $LOCKER{$key};#d#
		353	# wake up all waiters, to be on the safe side
		354	$_->ready for @{ delete $LOCK{$key} };
		355	}
		356	}
		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
		364	sub freeze_mainloop {
		365	tick_inhibit_inc;
		366
		367	Coro::guard \&tick_inhibit_dec;
		368	}
		369
		370	=item cf::periodic $interval, $cb
		371
		372	Like EV::periodic, but randomly selects a starting point so that the actions
		373	get spread over timer.
		374
		375	=cut
		376
		377	sub periodic($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
		428	}
		429	};
		430
		431	sub get_slot($;$$) {
		432	my ($time, $pri, $name) = @_;
		433
		434	$time = $TICK * .6 if $time > $TICK * .6;
		435	my $sig = new Coro::Signal;
		436
		437	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		438	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		439	$SLOT_QUEUE->ready;
		440	$sig->wait;
		441	}
		442
		443	=item cf::async { BLOCK }
		444
		445	Currently the same as Coro::async_pool, meaning you cannot use
		446	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		447	thing you are allowed to do is call C<prio> on it.
		448
		449	=cut
		450
		451	BEGIN { *async = \&Coro::async_pool }
183		452
184	=item cf::sync_job { BLOCK }	453	=item cf::sync_job { BLOCK }
185		454
186	The design of crossfire+ requires that the main coro ($Coro::main) is	455	The design of Deliantra requires that the main coroutine ($Coro::main)
187	always able to handle events or runnable, as crossfire+ is only partly	456	is always able to handle events or runnable, as Deliantra is only
188	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
189		459
190	If it must be done, put the blocking parts into C<sync_job>. This will run	460	If it must be done, put the blocking parts into C<sync_job>. This will run
191	the given BLOCK in another coroutine while waiting for the result. The	461	the given BLOCK in another coroutine while waiting for the result. The
192	server will be frozen during this time, so the block should either finish	462	server will be frozen during this time, so the block should either finish
193	fast or be very important.	463	fast or be very important.
…		…
195	=cut	465	=cut
196		466
197	sub sync_job(&) {	467	sub sync_job(&) {
198	my ($job) = @_;	468	my ($job) = @_;
199		469
200	my $busy = 1;
201	my @res;
202
203	# TODO: use suspend/resume instead
204	local $FREEZE = 1;
205
206	my $coro = Coro::async {
207	@res = eval { $job->() };
208	warn $@ if $@;
209	undef $busy;
210	};
211
212	if ($Coro::current == $Coro::main) {	470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
		473	# this is the main coro, too bad, we have to block
		474	# till the operation succeeds, freezing the server :/
		475
		476	LOG llevError, Carp::longmess "sync job";#d#
		477
		478	my $freeze_guard = freeze_mainloop;
		479
		480	my $busy = 1;
		481	my @res;
		482
		483	(async {
		484	$Coro::current->desc ("sync job coro");
		485	@res = eval { $job->() };
		486	warn $@ if $@;
		487	undef $busy;
213	$coro->prio (Coro::PRIO_MAX);	488	})->prio (Coro::PRIO_MAX);
		489
214	while ($busy) {	490	while ($busy) {
		491	if (Coro::nready) {
215	Coro::cede_notself;	492	Coro::cede_notself;
216	Event::one_event unless Coro::nready;	493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
217	}	495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
		501
		502	wantarray ? @res : $res[0]
218	} else {	503	} else {
219	$coro->join;	504	# we are in another coroutine, how wonderful, everything just works
		505
		506	$job->()
220	}	507	}
221
222	wantarray ? @res : $res[0]
223	}	508	}
224		509
225	=item $coro = cf::coro { BLOCK }	510	=item $coro = cf::async_ext { BLOCK }
226		511
227	Creates and returns a new coro. This coro is automcatially being canceled	512	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	513	extension calling this is being unloaded.
229		514
230	=cut	515	=cut
231		516
232	sub coro(&) {	517	sub async_ext(&) {
233	my $cb = shift;	518	my $cb = shift;
234		519
235	my $coro; $coro = async {	520	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		521
242	$coro->on_destroy (sub {	522	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	523	delete $EXT_CORO{$coro+0};
244	});	524	});
245	$EXT_CORO{$coro+0} = $coro;	525	$EXT_CORO{$coro+0} = $coro;
246		526
247	$coro	527	$coro
248	}	528	}
249		529
250	sub write_runtime {	530	=item fork_call { }, $args
251	my $runtime = cf::localdir . "/runtime";
252		531
253	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	532	Executes the given code block with the given arguments in a seperate
254	or return;	533	process, returning the results. Everything must be serialisable with
		534	Coro::Storable. May, of course, block. Note that the executed sub may
		535	never block itself or use any form of event handling.
255		536
256	my $value = $cf::RUNTIME;	537	=cut
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;
259		538
260	aio_fsync $fh	539	sub fork_call(&@) {
261	and return;	540	my ($cb, @args) = @_;
262		541
263	close $fh	542	# we seemingly have to make a local copy of the whole thing,
264	or return;	543	# otherwise perl prematurely frees the stuff :/
		544	# TODO: investigate and fix (likely this will be rather laborious)
265		545
266	aio_rename "$runtime~", $runtime	546	my @res = Coro::Util::fork_eval {
267	and return;	547	reset_signals;
		548	&$cb
		549	}, @args;
268		550
		551	wantarray ? @res : $res[-1]
		552	}
		553
		554	=item $coin = coin_from_name $name
		555
		556	=cut
		557
		558	our %coin_alias = (
		559	"silver" => "silvercoin",
		560	"silvercoin" => "silvercoin",
		561	"silvercoins" => "silvercoin",
		562	"gold" => "goldcoin",
		563	"goldcoin" => "goldcoin",
		564	"goldcoins" => "goldcoin",
		565	"platinum" => "platinacoin",
		566	"platinumcoin" => "platinacoin",
		567	"platinumcoins" => "platinacoin",
		568	"platina" => "platinacoin",
		569	"platinacoin" => "platinacoin",
		570	"platinacoins" => "platinacoin",
		571	"royalty" => "royalty",
		572	"royalties" => "royalty",
		573	);
		574
		575	sub coin_from_name($) {
		576	$coin_alias{$_[0]}
		577	? cf::arch::find $coin_alias{$_[0]}
		578	: undef
		579	}
		580
		581	=item $value = cf::db_get $family => $key
		582
		583	Returns a single value from the environment database.
		584
		585	=item cf::db_put $family => $key => $value
		586
		587	Stores the given C<$value> in the family. It can currently store binary
		588	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		589
		590	=item $db = cf::db_table "name"
		591
		592	Create and/or open a new database table. The string must not be "db" and must be unique
		593	within each server.
		594
		595	=cut
		596
		597	sub db_table($) {
		598	my ($name) = @_;
		599	my $db = BDB::db_create $DB_ENV;
		600
		601	eval {
		602	$db->set_flags (BDB::CHKSUM);
		603
		604	utf8::encode $name;
		605	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		606	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		607	cf::cleanup "db_open(db): $!" if $!;
		608	};
		609	cf::cleanup "db_open(db): $@" if $@;
		610
		611	$db
		612	}
		613
		614	our $DB;
		615
		616	sub db_init {
		617	cf::sync_job {
		618	$DB ||= db_table "db";
		619	};
		620	}
		621
		622	sub db_get($$) {
		623	my $key = "$_[0]/$_[1]";
		624
		625	cf::sync_job {
		626	BDB::db_get $DB, undef, $key, my $data;
		627
		628	$! ? ()
		629	: $data
269	1	630	}
		631	}
		632
		633	sub db_put($$$) {
		634	BDB::dbreq_pri 4;
		635	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		636	}
		637
		638	=item cf::cache $id => [$paths...], $processversion => $process
		639
		640	Generic caching function that returns the value of the resource $id,
		641	caching and regenerating as required.
		642
		643	This function can block.
		644
		645	=cut
		646
		647	sub cache {
		648	my ($id, $src, $processversion, $process) = @_;
		649
		650	my $meta =
		651	join "\x00",
		652	$processversion,
		653	map {
		654	aio_stat $_
		655	and Carp::croak "$_: $!";
		656
		657	($_, (stat _)[7,9])
		658	} @$src;
		659
		660	my $dbmeta = db_get cache => "$id/meta";
		661	if ($dbmeta ne $meta) {
		662	# changed, we may need to process
		663
		664	my @data;
		665	my $md5;
		666
		667	for (0 .. $#$src) {
		668	0 <= aio_load $src->[$_], $data[$_]
		669	or Carp::croak "$src->[$_]: $!";
		670	}
		671
		672	# if processing is expensive, check
		673	# checksum first
		674	if (1) {
		675	$md5 =
		676	join "\x00",
		677	$processversion,
		678	map {
		679	cf::cede_to_tick;
		680	($src->[$_], Digest::MD5::md5_hex $data[$_])
		681	} 0.. $#$src;
		682
		683
		684	my $dbmd5 = db_get cache => "$id/md5";
		685	if ($dbmd5 eq $md5) {
		686	db_put cache => "$id/meta", $meta;
		687
		688	return db_get cache => "$id/data";
		689	}
		690	}
		691
		692	my $t1 = Time::HiRes::time;
		693	my $data = $process->(\@data);
		694	my $t2 = Time::HiRes::time;
		695
		696	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		697
		698	db_put cache => "$id/data", $data;
		699	db_put cache => "$id/md5" , $md5;
		700	db_put cache => "$id/meta", $meta;
		701
		702	return $data;
		703	}
		704
		705	db_get cache => "$id/data"
		706	}
		707
		708	=item cf::datalog type => key => value, ...
		709
		710	Log a datalog packet of the given type with the given key-value pairs.
		711
		712	=cut
		713
		714	sub datalog($@) {
		715	my ($type, %kv) = @_;
		716	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
270	}	717	}
271		718
272	=back	719	=back
273		720
274	=cut	721	=cut
275
276	#############################################################################
277
278	package cf::path;
279
280	sub new {
281	my ($class, $path, $base) = @_;
282
283	my $self = bless { }, $class;
284
285	if ($path =~ s{^\?random/}{}) {
286	$self->{random} = cf::from_json $path;
287	} else {
288	if ($path =~ s{^~([^/]+)?}{}) {
289	$self->{user_rel} = 1;
290
291	if (defined $1) {
292	$self->{user} = $1;
293	} elsif ($base =~ m{^~([^/]+)/}) {
294	$self->{user} = $1;
295	} else {
296	warn "cannot resolve user-relative path without user <$path,$base>\n";
297	}
298	} elsif ($path =~ /^\//) {
299	# already absolute
300	} else {
301	$base =~ s{[^/]+/?$}{};
302	return $class->new ("$base/$path");
303	}
304
305	for ($path) {
306	redo if s{/\.?/}{/};
307	redo if s{/[^/]+/\.\./}{/};
308	}
309	}
310
311	$self->{path} = $path;
312
313	$self
314	}
315
316	# the name / primary key / in-game path
317	sub as_string {
318	my ($self) = @_;
319
320	$self->{user_rel} ? "~$self->{user}$self->{path}"
321	: $self->{random} ? "?random/$self->{path}"
322	: $self->{path}
323	}
324
325	# the displayed name, this is a one way mapping
326	sub visible_name {
327	my ($self) = @_;
328
329	$self->{random} ? "?random/$self->{random}{origin_map}+$self->{random}{origin_x}+$self->{random}{origin_y}/$self->{random}{dungeon_level}"
330	: $self->as_string
331	}
332
333	# escape the /'s in the path
334	sub _escaped_path {
335	# ∕ is U+2215
336	(my $path = $_[0]{path}) =~ s/\//∕/g;
337	$path
338	}
339
340	# the original (read-only) location
341	sub load_path {
342	my ($self) = @_;
343
344	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
345	}
346
347	# the temporary/swap location
348	sub save_path {
349	my ($self) = @_;
350
351	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
352	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, Digest::MD5::md5_hex $self->{path}
353	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
354	}
355
356	# the unique path, might be eq to save_path
357	sub uniq_path {
358	my ($self) = @_;
359
360	$self->{user_rel} || $self->{random}
361	? undef
362	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
363	}
364
365	# return random map parameters, or undef
366	sub random_map_params {
367	my ($self) = @_;
368
369	$self->{random}
370	}
371
372	# this is somewhat ugly, but style maps do need special treatment
373	sub is_style_map {
374	$_[0]{path} =~ m{^/styles/}
375	}
376
377	package cf;
378		722
379	#############################################################################	723	#############################################################################
380		724
381	=head2 ATTACHABLE OBJECTS	725	=head2 ATTACHABLE OBJECTS
382		726
…		…
384	attach callbacks/event handlers (a collection of which is called an "attachment")	728	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	729	to it. All such attachable objects support the following methods.
386		730
387	In the following description, CLASS can be any of C<global>, C<object>	731	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	732	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	733	Deliantra).
390		734
391	=over 4	735	=over 4
392		736
393	=item $attachable->attach ($attachment, key => $value...)	737	=item $attachable->attach ($attachment, key => $value...)
394		738
…		…
508	our @CB_TYPE = (); # registry for type (cf-object class) based events	852	our @CB_TYPE = (); # registry for type (cf-object class) based events
509	our @CB_MAP = ();	853	our @CB_MAP = ();
510		854
511	my %attachment;	855	my %attachment;
512		856
		857	sub cf::attachable::thawer_merge {
		858	# simply override everything except _meta
		859	local $_[0]{_meta};
		860	%{$_[0]} = %{$_[1]};
		861	}
		862
513	sub _attach_cb($$$$) {	863	sub _attach_cb($$$$) {
514	my ($registry, $event, $prio, $cb) = @_;	864	my ($registry, $event, $prio, $cb) = @_;
515		865
516	use sort 'stable';	866	use sort 'stable';
517		867
…		…
551	$registry = $CB_TYPE[$object_type] ||= [];	901	$registry = $CB_TYPE[$object_type] ||= [];
552		902
553	} elsif ($type eq "subtype") {	903	} elsif ($type eq "subtype") {
554	defined $object_type or Carp::croak "subtype specified without type";	904	defined $object_type or Carp::croak "subtype specified without type";
555	my $object_subtype = shift @arg;	905	my $object_subtype = shift @arg;
556	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	906	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
557		907
558	} elsif ($type eq "package") {	908	} elsif ($type eq "package") {
559	my $pkg = shift @arg;	909	my $pkg = shift @arg;
560		910
561	while (my ($name, $id) = each %cb_id) {	911	while (my ($name, $id) = each %cb_id) {
…		…
590	_attach $registry, $klass, @attach;	940	_attach $registry, $klass, @attach;
591	}	941	}
592		942
593	$obj->{$name} = \%arg;	943	$obj->{$name} = \%arg;
594	} else {	944	} else {
595	warn "object uses attachment '$name' that is not available, postponing.\n";	945	warn "object uses attachment '$name' which is not available, postponing.\n";
596	}	946	}
597		947
598	$obj->{_attachment}{$name} = undef;	948	$obj->{_attachment}{$name} = undef;
599	}	949	}
600		950
…		…
602	if (ref $_[0]) {	952	if (ref $_[0]) {
603	_object_attach @_;	953	_object_attach @_;
604	} else {	954	} else {
605	_attach shift->_attach_registry, @_;	955	_attach shift->_attach_registry, @_;
606	}	956	}
		957	_recalc_want;
607	};	958	};
608		959
609	# all those should be optimised	960	# all those should be optimised
610	sub cf::attachable::detach {	961	sub cf::attachable::detach {
611	my ($obj, $name) = @_;	962	my ($obj, $name) = @_;
…		…
614	delete $obj->{_attachment}{$name};	965	delete $obj->{_attachment}{$name};
615	reattach ($obj);	966	reattach ($obj);
616	} else {	967	} else {
617	Carp::croak "cannot, currently, detach class attachments";	968	Carp::croak "cannot, currently, detach class attachments";
618	}	969	}
		970	_recalc_want;
619	};	971	};
620		972
621	sub cf::attachable::attached {	973	sub cf::attachable::attached {
622	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
623		975
…		…
638	";	990	";
639	die if $@;	991	die if $@;
640	}	992	}
641		993
642	our $override;	994	our $override;
643	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	995	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
644		996
645	sub override {	997	sub override {
646	$override = 1;	998	$override = 1;
647	@invoke_results = ();	999	@INVOKE_RESULTS = (@_);
648	}	1000	}
649		1001
650	sub do_invoke {	1002	sub do_invoke {
651	my $event = shift;	1003	my $event = shift;
652	my $callbacks = shift;	1004	my $callbacks = shift;
653		1005
654	@invoke_results = ();	1006	@INVOKE_RESULTS = ();
655		1007
656	local $override;	1008	local $override;
657		1009
658	for (@$callbacks) {	1010	for (@$callbacks) {
659	eval { &{$_->[1]} };	1011	eval { &{$_->[1]} };
…		…
668	}	1020	}
669		1021
670	0	1022	0
671	}	1023	}
672		1024
673	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1025	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
674		1026
675	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
676		1028
677	Generate an object-specific event with the given arguments.	1029	Generate an object-specific event with the given arguments.
678		1030
679	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1031	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
680	removed in future versions), and there is no public API to access override	1032	removed in future versions), and there is no public API to access override
681	results (if you must, access C<@cf::invoke_results> directly).	1033	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
682		1034
683	=back	1035	=back
684		1036
685	=cut	1037	=cut
686		1038
687	#############################################################################	1039	#############################################################################
688	# object support	1040	# object support
		1041
		1042	sub _object_equal($$);
		1043	sub _object_equal($$) {
		1044	my ($a, $b) = @_;
		1045
		1046	return 0 unless (ref $a) eq (ref $b);
		1047
		1048	if ("HASH" eq ref $a) {
		1049	my @ka = keys %$a;
		1050	my @kb = keys %$b;
		1051
		1052	return 0 if @ka != @kb;
		1053
		1054	for (0 .. $#ka) {
		1055	return 0 unless $ka[$_] eq $kb[$_];
		1056	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1057	}
		1058
		1059	} elsif ("ARRAY" eq ref $a) {
		1060
		1061	return 0 if @$a != @$b;
		1062
		1063	for (0 .. $#$a) {
		1064	return 0 unless _object_equal $a->[$_], $b->[$_];
		1065	}
		1066
		1067	} elsif ($a ne $b) {
		1068	return 0;
		1069	}
		1070
		1071	1
		1072	}
		1073
		1074	our $SLOW_MERGES;#d#
		1075	sub _can_merge {
		1076	my ($ob1, $ob2) = @_;
		1077
		1078	++$SLOW_MERGES;#d#
		1079
		1080	# we do the slow way here
		1081	return _object_equal $ob1, $ob2
		1082	}
689		1083
690	sub reattach {	1084	sub reattach {
691	# basically do the same as instantiate, without calling instantiate	1085	# basically do the same as instantiate, without calling instantiate
692	my ($obj) = @_;	1086	my ($obj) = @_;
		1087
		1088	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
693		1089
694	my $registry = $obj->registry;	1090	my $registry = $obj->registry;
695		1091
696	@$registry = ();	1092	@$registry = ();
697		1093
…		…
712	cf::attachable->attach (	1108	cf::attachable->attach (
713	prio => -1000000,	1109	prio => -1000000,
714	on_instantiate => sub {	1110	on_instantiate => sub {
715	my ($obj, $data) = @_;	1111	my ($obj, $data) = @_;
716		1112
717	$data = from_json $data;	1113	$data = decode_json $data;
718		1114
719	for (@$data) {	1115	for (@$data) {
720	my ($name, $args) = @$_;	1116	my ($name, $args) = @$_;
721		1117
722	$obj->attach ($name, %{$args || {} });	1118	$obj->attach ($name, %{$args || {} });
…		…
738	sub object_freezer_save {	1134	sub object_freezer_save {
739	my ($filename, $rdata, $objs) = @_;	1135	my ($filename, $rdata, $objs) = @_;
740		1136
741	sync_job {	1137	sync_job {
742	if (length $$rdata) {	1138	if (length $$rdata) {
		1139	utf8::decode (my $decname = $filename);
743	warn sprintf "saving %s (%d,%d)\n",	1140	warn sprintf "saving %s (%d,%d)\n",
744	$filename, length $$rdata, scalar @$objs;	1141	$decname, length $$rdata, scalar @$objs;
745		1142
746	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1143	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
747	chmod SAVE_MODE, $fh;	1144	chmod SAVE_MODE, $fh;
748	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1145	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
749	aio_fsync $fh;	1146	aio_fsync $fh if $cf::USE_FSYNC;
750	close $fh;	1147	close $fh;
751		1148
752	if (@$objs) {	1149	if (@$objs) {
753	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1150	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
754	chmod SAVE_MODE, $fh;	1151	chmod SAVE_MODE, $fh;
755	my $data = Storable::nfreeze { version => 1, objs => $objs };	1152	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
756	aio_write $fh, 0, (length $data), $data, 0;	1153	aio_write $fh, 0, (length $data), $data, 0;
757	aio_fsync $fh;	1154	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	1155	close $fh;
759	aio_rename "$filename.pst~", "$filename.pst";	1156	aio_rename "$filename.pst~", "$filename.pst";
760	}	1157	}
761	} else {	1158	} else {
762	aio_unlink "$filename.pst";	1159	aio_unlink "$filename.pst";
…		…
768	}	1165	}
769	} else {	1166	} else {
770	aio_unlink $filename;	1167	aio_unlink $filename;
771	aio_unlink "$filename.pst";	1168	aio_unlink "$filename.pst";
772	}	1169	}
773	}	1170	};
774	}	1171	}
775		1172
776	sub object_freezer_as_string {	1173	sub object_freezer_as_string {
777	my ($rdata, $objs) = @_;	1174	my ($rdata, $objs) = @_;
778		1175
…		…
790	or return;	1187	or return;
791		1188
792	unless (aio_stat "$filename.pst") {	1189	unless (aio_stat "$filename.pst") {
793	(aio_load "$filename.pst", $av) >= 0	1190	(aio_load "$filename.pst", $av) >= 0
794	or return;	1191	or return;
		1192
795	$av = eval { (Storable::thaw <$av>)->{objs} };	1193	my $st = eval { Coro::Storable::thaw $av };
		1194	$av = $st->{objs};
796	}	1195	}
797		1196
		1197	utf8::decode (my $decname = $filename);
		1198	warn sprintf "loading %s (%d,%d)\n",
		1199	$decname, length $data, scalar @{$av || []};
		1200
798	return ($data, $av);	1201	($data, $av)
799	}	1202	}
		1203
		1204	=head2 COMMAND CALLBACKS
		1205
		1206	=over 4
		1207
		1208	=cut
800		1209
801	#############################################################################	1210	#############################################################################
802	# command handling &c	1211	# command handling &c
803		1212
804	=item cf::register_command $name => \&callback($ob,$args);	1213	=item cf::register_command $name => \&callback($ob,$args);
…		…
817	push @{ $COMMAND{$name} }, [$caller, $cb];	1226	push @{ $COMMAND{$name} }, [$caller, $cb];
818	}	1227	}
819		1228
820	=item cf::register_extcmd $name => \&callback($pl,$packet);	1229	=item cf::register_extcmd $name => \&callback($pl,$packet);
821		1230
822	Register a callbackf ro execution when the client sends an extcmd packet.	1231	Register a callback for execution when the client sends an (synchronous)
		1232	extcmd packet. Ext commands will be processed in the order they are
		1233	received by the server, like other user commands. The first argument is
		1234	the logged-in player. Ext commands can only be processed after a player
		1235	has logged in successfully.
823		1236
824	If the callback returns something, it is sent back as if reply was being	1237	If the callback returns something, it is sent back as if reply was being
825	called.	1238	called.
826		1239
		1240	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1241
		1242	Register a callback for execution when the client sends an (asynchronous)
		1243	exticmd packet. Exti commands are processed by the server as soon as they
		1244	are received, i.e. out of order w.r.t. other commands. The first argument
		1245	is a client socket. Exti commands can be received anytime, even before
		1246	log-in.
		1247
		1248	If the callback returns something, it is sent back as if reply was being
		1249	called.
		1250
827	=cut	1251	=cut
828		1252
829	sub register_extcmd {	1253	sub register_extcmd {
830	my ($name, $cb) = @_;	1254	my ($name, $cb) = @_;
831		1255
832	my $caller = caller;
833	#warn "registering extcmd '$name' to '$caller'";
834
835	$EXTCMD{$name} = [$cb, $caller];	1256	$EXTCMD{$name} = $cb;
		1257	}
		1258
		1259	sub register_exticmd {
		1260	my ($name, $cb) = @_;
		1261
		1262	$EXTICMD{$name} = $cb;
836	}	1263	}
837		1264
838	cf::player->attach (	1265	cf::player->attach (
839	on_command => sub {	1266	on_command => sub {
840	my ($pl, $name, $params) = @_;	1267	my ($pl, $name, $params) = @_;
…		…
849	cf::override;	1276	cf::override;
850	},	1277	},
851	on_extcmd => sub {	1278	on_extcmd => sub {
852	my ($pl, $buf) = @_;	1279	my ($pl, $buf) = @_;
853		1280
854	my $msg = eval { from_json $buf };	1281	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
855		1282
856	if (ref $msg) {	1283	if (ref $msg) {
		1284	my ($type, $reply, @payload) =
		1285	"ARRAY" eq ref $msg
		1286	? @$msg
		1287	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1288
		1289	my @reply;
		1290
857	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1291	if (my $cb = $EXTCMD{$type}) {
858	if (my %reply = $cb->[0]->($pl, $msg)) {	1292	@reply = $cb->($pl, @payload);
859	$pl->ext_reply ($msg->{msgid}, %reply);
860	}
861	}	1293	}
		1294
		1295	$pl->ext_reply ($reply, @reply)
		1296	if $reply;
		1297
862	} else {	1298	} else {
863	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1299	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
864	}	1300	}
865		1301
866	cf::override;	1302	cf::override;
867	},	1303	},
868	);	1304	);
869		1305
		1306	sub load_extensions {
		1307	cf::sync_job {
		1308	my %todo;
		1309
		1310	for my $path (<$LIBDIR/*.ext>) {
		1311	next unless -r $path;
		1312
		1313	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1314	my $base = $1;
		1315	my $pkg = $1;
		1316	$pkg =~ s/[^[:word:]]/_/g;
		1317	$pkg = "ext::$pkg";
		1318
		1319	open my $fh, "<:utf8", $path
		1320	or die "$path: $!";
		1321
		1322	my $source = do { local $/; <$fh> };
		1323
		1324	my %ext = (
		1325	path => $path,
		1326	base => $base,
		1327	pkg => $pkg,
		1328	);
		1329
		1330	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1331	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1332
		1333	$ext{source} =
		1334	"package $pkg; use strict; use utf8;\n"
		1335	. "#line 1 \"$path\"\n{\n"
		1336	. $source
		1337	. "\n};\n1";
		1338
		1339	$todo{$base} = \%ext;
		1340	}
		1341
		1342	my %done;
		1343	while (%todo) {
		1344	my $progress;
		1345
		1346	while (my ($k, $v) = each %todo) {
		1347	for (split /,\s*/, $v->{meta}{depends}) {
		1348	goto skip
		1349	unless exists $done{$_};
		1350	}
		1351
		1352	warn "... loading '$k' into '$v->{pkg}'\n";
		1353
		1354	unless (eval $v->{source}) {
		1355	my $msg = $@ ? "$v->{path}: $@\n"
		1356	: "$v->{base}: extension inactive.\n";
		1357
		1358	if (exists $v->{meta}{mandatory}) {
		1359	warn $msg;
		1360	cf::cleanup "mandatory extension failed to load, exiting.";
		1361	}
		1362
		1363	warn $msg;
		1364	}
		1365
		1366	$done{$k} = delete $todo{$k};
		1367	push @EXTS, $v->{pkg};
		1368	$progress = 1;
		1369	}
		1370
		1371	skip:
		1372	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1373	unless $progress;
		1374	}
		1375	};
		1376	}
		1377
		1378	#############################################################################
		1379
		1380	=back
		1381
		1382	=head2 CORE EXTENSIONS
		1383
		1384	Functions and methods that extend core crossfire objects.
		1385
		1386	=cut
		1387
		1388	package cf::player;
		1389
		1390	use Coro::AIO;
		1391
		1392	=head3 cf::player
		1393
		1394	=over 4
		1395
		1396	=item cf::player::num_playing
		1397
		1398	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1399
		1400	=cut
		1401
		1402	sub num_playing {
		1403	scalar grep
		1404	$_->ob->map
		1405	&& !$_->hidden
		1406	&& !$_->ob->flag (cf::FLAG_WIZ),
		1407	cf::player::list
		1408	}
		1409
		1410	=item cf::player::find $login
		1411
		1412	Returns the given player object, loading it if necessary (might block).
		1413
		1414	=cut
		1415
		1416	sub playerdir($) {
		1417	"$PLAYERDIR/"
		1418	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1419	}
		1420
		1421	sub path($) {
		1422	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1423
		1424	(playerdir $login) . "/playerdata"
		1425	}
		1426
		1427	sub find_active($) {
		1428	$cf::PLAYER{$_[0]}
		1429	and $cf::PLAYER{$_[0]}->active
		1430	and $cf::PLAYER{$_[0]}
		1431	}
		1432
		1433	sub exists($) {
		1434	my ($login) = @_;
		1435
		1436	$cf::PLAYER{$login}
		1437	or cf::sync_job { !aio_stat path $login }
		1438	}
		1439
		1440	sub find($) {
		1441	return $cf::PLAYER{$_[0]} || do {
		1442	my $login = $_[0];
		1443
		1444	my $guard = cf::lock_acquire "user_find:$login";
		1445
		1446	$cf::PLAYER{$_[0]} || do {
		1447	# rename old playerfiles to new ones
		1448	#TODO: remove when no longer required
		1449	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1450	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1451	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1452	aio_unlink +(playerdir $login) . "/$login.pl";
		1453
		1454	my $f = new_from_file cf::object::thawer path $login
		1455	or return;
		1456
		1457	my $pl = cf::player::load_pl $f
		1458	or return;
		1459	local $cf::PLAYER_LOADING{$login} = $pl;
		1460	$f->resolve_delayed_derefs;
		1461	$cf::PLAYER{$login} = $pl
		1462	}
		1463	}
		1464	}
		1465
		1466	sub save($) {
		1467	my ($pl) = @_;
		1468
		1469	return if $pl->{deny_save};
		1470
		1471	my $path = path $pl;
		1472	my $guard = cf::lock_acquire "user_save:$path";
		1473
		1474	return if $pl->{deny_save};
		1475
		1476	aio_mkdir playerdir $pl, 0770;
		1477	$pl->{last_save} = $cf::RUNTIME;
		1478
		1479	$pl->save_pl ($path);
		1480	cf::cede_to_tick;
		1481	}
		1482
		1483	sub new($) {
		1484	my ($login) = @_;
		1485
		1486	my $self = create;
		1487
		1488	$self->ob->name ($login);
		1489	$self->{deny_save} = 1;
		1490
		1491	$cf::PLAYER{$login} = $self;
		1492
		1493	$self
		1494	}
		1495
		1496	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1497
		1498	=cut
		1499
		1500	sub send_msg {
		1501	my $ns = shift->ns
		1502	or return;
		1503	$ns->send_msg (@_);
		1504	}
		1505
		1506	=item $pl->quit_character
		1507
		1508	Nukes the player without looking back. If logged in, the connection will
		1509	be destroyed. May block for a long time.
		1510
		1511	=cut
		1512
		1513	sub quit_character {
		1514	my ($pl) = @_;
		1515
		1516	my $name = $pl->ob->name;
		1517
		1518	$pl->{deny_save} = 1;
		1519	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1520
		1521	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1522	$pl->deactivate;
		1523	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1524	$pl->ns->destroy if $pl->ns;
		1525
		1526	my $path = playerdir $pl;
		1527	my $temp = "$path~$cf::RUNTIME~deleting~";
		1528	aio_rename $path, $temp;
		1529	delete $cf::PLAYER{$pl->ob->name};
		1530	$pl->destroy;
		1531
		1532	my $prefix = qr<^~\Q$name\E/>;
		1533
		1534	# nuke player maps
		1535	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1536
		1537	IO::AIO::aio_rmtree $temp;
		1538	}
		1539
		1540	=item $pl->kick
		1541
		1542	Kicks a player out of the game. This destroys the connection.
		1543
		1544	=cut
		1545
		1546	sub kick {
		1547	my ($pl, $kicker) = @_;
		1548
		1549	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1550	$pl->killer ("kicked");
		1551	$pl->ns->destroy;
		1552	}
		1553
		1554	=item cf::player::list_logins
		1555
		1556	Returns am arrayref of all valid playernames in the system, can take a
		1557	while and may block, so not sync_job-capable, ever.
		1558
		1559	=cut
		1560
		1561	sub list_logins {
		1562	my $dirs = aio_readdir $PLAYERDIR
		1563	or return [];
		1564
		1565	my @logins;
		1566
		1567	for my $login (@$dirs) {
		1568	my $path = path $login;
		1569
		1570	# a .pst is a dead give-away for a valid player
		1571	unless (-e "$path.pst") {
		1572	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1573	aio_read $fh, 0, 512, my $buf, 0 or next;
		1574	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1575	}
		1576
		1577	utf8::decode $login;
		1578	push @logins, $login;
		1579	}
		1580
		1581	\@logins
		1582	}
		1583
		1584	=item $player->maps
		1585
		1586	Returns an arrayref of map paths that are private for this
		1587	player. May block.
		1588
		1589	=cut
		1590
		1591	sub maps($) {
		1592	my ($pl) = @_;
		1593
		1594	$pl = ref $pl ? $pl->ob->name : $pl;
		1595
		1596	my $files = aio_readdir playerdir $pl
		1597	or return;
		1598
		1599	my @paths;
		1600
		1601	for (@$files) {
		1602	utf8::decode $_;
		1603	next if /\.(?:pl|pst)$/;
		1604	next unless /^$PATH_SEP/o;
		1605
		1606	push @paths, cf::map::normalise "~$pl/$_";
		1607	}
		1608
		1609	\@paths
		1610	}
		1611
		1612	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1613
		1614	Expand crossfire pod fragments into protocol xml.
		1615
		1616	=cut
		1617
		1618	use re 'eval';
		1619
		1620	my $group;
		1621	my $interior; $interior = qr{
		1622	# match a pod interior sequence sans C<< >>
		1623	(?:
		1624	\ (.*?)\ (?{ $group = $^N })
		1625	| < (??{$interior}) >
		1626	)
		1627	}x;
		1628
		1629	sub expand_cfpod {
		1630	my ($self, $pod) = @_;
		1631
		1632	my $xml;
		1633
		1634	while () {
		1635	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1636	$group = $1;
		1637
		1638	$group =~ s/&/&amp;/g;
		1639	$group =~ s/</&lt;/g;
		1640
		1641	$xml .= $group;
		1642	} elsif ($pod =~ m%\G
		1643	([BCGHITU])
		1644	<
		1645	(?:
		1646	([^<>]*) (?{ $group = $^N })
		1647	| < $interior >
		1648	)
		1649	>
		1650	%gcsx
		1651	) {
		1652	my ($code, $data) = ($1, $group);
		1653
		1654	if ($code eq "B") {
		1655	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1656	} elsif ($code eq "I") {
		1657	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1658	} elsif ($code eq "U") {
		1659	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1660	} elsif ($code eq "C") {
		1661	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1662	} elsif ($code eq "T") {
		1663	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1664	} elsif ($code eq "G") {
		1665	my ($male, $female) = split /\|/, $data;
		1666	$data = $self->gender ? $female : $male;
		1667	$xml .= expand_cfpod ($self, $data);
		1668	} elsif ($code eq "H") {
		1669	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1670	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1671	"")
		1672	[$self->{hintmode}];
		1673	} else {
		1674	$xml .= "error processing '$code($data)' directive";
		1675	}
		1676	} else {
		1677	if ($pod =~ /\G(.+)/) {
		1678	warn "parse error while expanding $pod (at $1)";
		1679	}
		1680	last;
		1681	}
		1682	}
		1683
		1684	for ($xml) {
		1685	# create single paragraphs (very hackish)
		1686	s/(?<=\S)\n(?=\w)/ /g;
		1687
		1688	# compress some whitespace
		1689	s/\s+\n/\n/g; # ws line-ends
		1690	s/\n\n+/\n/g; # double lines
		1691	s/^\n+//; # beginning lines
		1692	s/\n+$//; # ending lines
		1693	}
		1694
		1695	$xml
		1696	}
		1697
		1698	no re 'eval';
		1699
		1700	sub hintmode {
		1701	$_[0]{hintmode} = $_[1] if @_ > 1;
		1702	$_[0]{hintmode}
		1703	}
		1704
		1705	=item $player->ext_reply ($msgid, @msg)
		1706
		1707	Sends an ext reply to the player.
		1708
		1709	=cut
		1710
		1711	sub ext_reply($$@) {
		1712	my ($self, $id, @msg) = @_;
		1713
		1714	$self->ns->ext_reply ($id, @msg)
		1715	}
		1716
		1717	=item $player->ext_msg ($type, @msg)
		1718
		1719	Sends an ext event to the client.
		1720
		1721	=cut
		1722
		1723	sub ext_msg($$@) {
		1724	my ($self, $type, @msg) = @_;
		1725
		1726	$self->ns->ext_msg ($type, @msg);
		1727	}
		1728
		1729	=head3 cf::region
		1730
		1731	=over 4
		1732
		1733	=cut
		1734
		1735	package cf::region;
		1736
		1737	=item cf::region::find_by_path $path
		1738
		1739	Tries to decuce the likely region for a map knowing only its path.
		1740
		1741	=cut
		1742
		1743	sub find_by_path($) {
		1744	my ($path) = @_;
		1745
		1746	my ($match, $specificity);
		1747
		1748	for my $region (list) {
		1749	if ($region->{match} && $path =~ $region->{match}) {
		1750	($match, $specificity) = ($region, $region->specificity)
		1751	if $region->specificity > $specificity;
		1752	}
		1753	}
		1754
		1755	$match
		1756	}
		1757
		1758	=back
		1759
		1760	=head3 cf::map
		1761
		1762	=over 4
		1763
		1764	=cut
		1765
		1766	package cf::map;
		1767
		1768	use Fcntl;
		1769	use Coro::AIO;
		1770
		1771	use overload
		1772	'""' => \&as_string,
		1773	fallback => 1;
		1774
		1775	our $MAX_RESET = 3600;
		1776	our $DEFAULT_RESET = 3000;
		1777
		1778	sub generate_random_map {
		1779	my ($self, $rmp) = @_;
		1780	# mit "rum" bekleckern, nicht
		1781	$self->_create_random_map (
		1782	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1783	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1784	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1785	$rmp->{exit_on_final_map},
		1786	$rmp->{xsize}, $rmp->{ysize},
		1787	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1788	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1789	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1790	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1791	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1792	(cf::region::find $rmp->{region}), $rmp->{custom}
		1793	)
		1794	}
		1795
		1796	=item cf::map->register ($regex, $prio)
		1797
		1798	Register a handler for the map path matching the given regex at the
		1799	givne priority (higher is better, built-in handlers have priority 0, the
		1800	default).
		1801
		1802	=cut
		1803
870	sub register {	1804	sub register {
		1805	my (undef, $regex, $prio) = @_;
		1806	my $pkg = caller;
		1807
		1808	no strict;
		1809	push @{"$pkg\::ISA"}, __PACKAGE__;
		1810
		1811	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1812	}
		1813
		1814	# also paths starting with '/'
		1815	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1816
		1817	sub thawer_merge {
871	my ($base, $pkg) = @_;	1818	my ($self, $merge) = @_;
872		1819
873	#TODO	1820	# we have to keep some variables in memory intact
874	}	1821	local $self->{path};
		1822	local $self->{load_path};
875		1823
876	sub load_extension {	1824	$self->SUPER::thawer_merge ($merge);
		1825	}
		1826
		1827	sub normalise {
877	my ($path) = @_;	1828	my ($path, $base) = @_;
878		1829
879	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1830	$path = "$path"; # make sure its a string
880	my $base = $1;
881	my $pkg = $1;
882	$pkg =~ s/[^[:word:]]/_/g;
883	$pkg = "ext::$pkg";
884		1831
885	warn "loading '$path' into '$pkg'\n";	1832	$path =~ s/\.map$//;
886		1833
887	open my $fh, "<:utf8", $path	1834	# map plan:
888	or die "$path: $!";	1835	#
		1836	# /! non-realised random map exit (special hack!)
		1837	# {... are special paths that are not being touched
		1838	# ?xxx/... are special absolute paths
		1839	# ?random/... random maps
		1840	# /... normal maps
		1841	# ~user/... per-player map of a specific user
889		1842
890	my $source =	1843	$path =~ s/$PATH_SEP/\//go;
891	"package $pkg; use strict; use utf8;\n"
892	. "#line 1 \"$path\"\n{\n"
893	. (do { local $/; <$fh> })
894	. "\n};\n1";
895		1844
896	eval $source	1845	# treat it as relative path if it starts with
897	or die $@ ? "$path: $@\n"	1846	# something that looks reasonable
898	: "extension disabled.\n";	1847	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1848	$base or Carp::carp "normalise called with relative path and no base: '$path'";
899		1849
900	push @exts, $pkg;	1850	$base =~ s{[^/]+/?$}{};
901	$ext_pkg{$base} = $pkg;	1851	$path = "$base/$path";
902
903	# no strict 'refs';
904	# @{"$pkg\::ISA"} = ext::;
905
906	register $base, $pkg;
907	}
908
909	sub unload_extension {
910	my ($pkg) = @_;
911
912	warn "removing extension $pkg\n";
913
914	# remove hooks
915	#TODO
916	# for my $idx (0 .. $#PLUGIN_EVENT) {
917	# delete $hook[$idx]{$pkg};
918	# }	1852	}
919		1853
920	# remove commands	1854	for ($path) {
921	for my $name (keys %COMMAND) {	1855	redo if s{//}{/};
922	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1856	redo if s{/\.?/}{/};
		1857	redo if s{/[^/]+/\.\./}{/};
		1858	}
923		1859
924	if (@cb) {	1860	$path
925	$COMMAND{$name} = \@cb;	1861	}
		1862
		1863	sub new_from_path {
		1864	my (undef, $path, $base) = @_;
		1865
		1866	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1867
		1868	$path = normalise $path, $base;
		1869
		1870	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1871	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1872	my $self = bless cf::map::new, $pkg;
		1873	$self->{path} = $path; $self->path ($path);
		1874	$self->init; # pass $1 etc.
		1875	return $self;
		1876	}
		1877	}
		1878
		1879	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1880	()
		1881	}
		1882
		1883	sub init {
		1884	my ($self) = @_;
		1885
		1886	$self
		1887	}
		1888
		1889	sub as_string {
		1890	my ($self) = @_;
		1891
		1892	"$self->{path}"
		1893	}
		1894
		1895	# the displayed name, this is a one way mapping
		1896	sub visible_name {
		1897	&as_string
		1898	}
		1899
		1900	# the original (read-only) location
		1901	sub load_path {
		1902	my ($self) = @_;
		1903
		1904	"$MAPDIR/$self->{path}.map"
		1905	}
		1906
		1907	# the temporary/swap location
		1908	sub save_path {
		1909	my ($self) = @_;
		1910
		1911	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1912	"$TMPDIR/$path.map"
		1913	}
		1914
		1915	# the unique path, undef == no special unique path
		1916	sub uniq_path {
		1917	my ($self) = @_;
		1918
		1919	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1920	"$UNIQUEDIR/$path"
		1921	}
		1922
		1923	# and all this just because we cannot iterate over
		1924	# all maps in C++...
		1925	sub change_all_map_light {
		1926	my ($change) = @_;
		1927
		1928	$_->change_map_light ($change)
		1929	for grep $_->outdoor, values %cf::MAP;
		1930	}
		1931
		1932	sub decay_objects {
		1933	my ($self) = @_;
		1934
		1935	return if $self->{deny_reset};
		1936
		1937	$self->do_decay_objects;
		1938	}
		1939
		1940	sub unlink_save {
		1941	my ($self) = @_;
		1942
		1943	utf8::encode (my $save = $self->save_path);
		1944	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1945	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1946	}
		1947
		1948	sub load_header_from($) {
		1949	my ($self, $path) = @_;
		1950
		1951	utf8::encode $path;
		1952	my $f = new_from_file cf::object::thawer $path
		1953	or return;
		1954
		1955	$self->_load_header ($f)
		1956	or return;
		1957
		1958	local $MAP_LOADING{$self->{path}} = $self;
		1959	$f->resolve_delayed_derefs;
		1960
		1961	$self->{load_path} = $path;
		1962
		1963	1
		1964	}
		1965
		1966	sub load_header_orig {
		1967	my ($self) = @_;
		1968
		1969	$self->load_header_from ($self->load_path)
		1970	}
		1971
		1972	sub load_header_temp {
		1973	my ($self) = @_;
		1974
		1975	$self->load_header_from ($self->save_path)
		1976	}
		1977
		1978	sub prepare_temp {
		1979	my ($self) = @_;
		1980
		1981	$self->last_access ((delete $self->{last_access})
		1982	|| $cf::RUNTIME); #d#
		1983	# safety
		1984	$self->{instantiate_time} = $cf::RUNTIME
		1985	if $self->{instantiate_time} > $cf::RUNTIME;
		1986	}
		1987
		1988	sub prepare_orig {
		1989	my ($self) = @_;
		1990
		1991	$self->{load_original} = 1;
		1992	$self->{instantiate_time} = $cf::RUNTIME;
		1993	$self->last_access ($cf::RUNTIME);
		1994	$self->instantiate;
		1995	}
		1996
		1997	sub load_header {
		1998	my ($self) = @_;
		1999
		2000	if ($self->load_header_temp) {
		2001	$self->prepare_temp;
926	} else {	2002	} else {
927	delete $COMMAND{$name};	2003	$self->load_header_orig
928	}	2004	or return;
		2005	$self->prepare_orig;
		2006	}
		2007
		2008	$self->{deny_reset} = 1
		2009	if $self->no_reset;
		2010
		2011	$self->default_region (cf::region::find_by_path $self->{path})
		2012	unless $self->default_region;
		2013
929	}	2014	1
		2015	}
930		2016
931	# remove extcmds	2017	sub find;
932	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	2018	sub find {
933	delete $EXTCMD{$name};	2019	my ($path, $origin) = @_;
		2020
		2021	$path = normalise $path, $origin && $origin->path;
		2022
		2023	cf::lock_wait "map_data:$path";#d#remove
		2024	cf::lock_wait "map_find:$path";
		2025
		2026	$cf::MAP{$path} || do {
		2027	my $guard1 = cf::lock_acquire "map_find:$path";
		2028	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		2029
		2030	my $map = new_from_path cf::map $path
		2031	or return;
		2032
		2033	$map->{last_save} = $cf::RUNTIME;
		2034
		2035	$map->load_header
		2036	or return;
		2037
		2038	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2039	# doing this can freeze the server in a sync job, obviously
		2040	#$cf::WAIT_FOR_TICK->wait;
		2041	undef $guard1;
		2042	undef $guard2;
		2043	$map->reset;
		2044	return find $path;
		2045	}
		2046
		2047	$cf::MAP{$path} = $map
		2048	}
		2049	}
		2050
		2051	sub pre_load { }
		2052	sub post_load { }
		2053
		2054	sub load {
		2055	my ($self) = @_;
		2056
		2057	local $self->{deny_reset} = 1; # loading can take a long time
		2058
		2059	my $path = $self->{path};
		2060
934	}	2061	{
		2062	my $guard = cf::lock_acquire "map_data:$path";
935		2063
936	if (my $cb = $pkg->can ("unload")) {	2064	return unless $self->valid;
937	eval {	2065	return unless $self->in_memory == cf::MAP_SWAPPED;
938	$cb->($pkg);	2066
		2067	$self->in_memory (cf::MAP_LOADING);
		2068
		2069	$self->alloc;
		2070
		2071	$self->pre_load;
		2072	cf::cede_to_tick;
		2073
		2074	my $f = new_from_file cf::object::thawer $self->{load_path};
		2075	$f->skip_block;
		2076	$self->_load_objects ($f)
		2077	or return;
		2078
		2079	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		2080	if delete $self->{load_original};
		2081
		2082	if (my $uniq = $self->uniq_path) {
		2083	utf8::encode $uniq;
		2084	unless (aio_stat $uniq) {
		2085	if (my $f = new_from_file cf::object::thawer $uniq) {
		2086	$self->clear_unique_items;
		2087	$self->_load_objects ($f);
		2088	$f->resolve_delayed_derefs;
		2089	}
939	1	2090	}
940	} or warn "$pkg unloaded, but with errors: $@";	2091	}
941	}
942		2092
943	Symbol::delete_package $pkg;	2093	$f->resolve_delayed_derefs;
944	}
945		2094
946	sub load_extensions {	2095	cf::cede_to_tick;
947	for my $ext (<$LIBDIR/*.ext>) {	2096	# now do the right thing for maps
948	next unless -r $ext;	2097	$self->link_multipart_objects;
949	eval {	2098	$self->difficulty ($self->estimate_difficulty)
950	load_extension $ext;	2099	unless $self->difficulty;
951	1	2100	cf::cede_to_tick;
952	} or warn "$ext not loaded: $@";
953	}
954	}
955		2101
956	#############################################################################	2102	unless ($self->{deny_activate}) {
957	# load/save/clean perl data associated with a map	2103	$self->decay_objects;
		2104	$self->fix_auto_apply;
		2105	$self->update_buttons;
		2106	cf::cede_to_tick;
		2107	$self->set_darkness_map;
		2108	cf::cede_to_tick;
		2109	$self->activate;
		2110	}
958		2111
959	*cf::mapsupport::on_clean = sub {	2112	$self->{last_save} = $cf::RUNTIME;
		2113	$self->last_access ($cf::RUNTIME);
		2114
		2115	$self->in_memory (cf::MAP_IN_MEMORY);
		2116	}
		2117
		2118	$self->post_load;
		2119	}
		2120
		2121	sub customise_for {
		2122	my ($self, $ob) = @_;
		2123
		2124	return find "~" . $ob->name . "/" . $self->{path}
		2125	if $self->per_player;
		2126
		2127	# return find "?party/" . $ob->name . "/" . $self->{path}
		2128	# if $self->per_party;
		2129
		2130	$self
		2131	}
		2132
		2133	# find and load all maps in the 3x3 area around a map
		2134	sub load_neighbours {
960	my ($map) = @_;	2135	my ($map) = @_;
961		2136
962	my $path = $map->tmpname;	2137	my @neigh; # diagonal neighbours
963	defined $path or return;
964		2138
965	unlink "$path.pst";	2139	for (0 .. 3) {
966	};	2140	my $neigh = $map->tile_path ($_)
		2141	or next;
		2142	$neigh = find $neigh, $map
		2143	or next;
		2144	$neigh->load;
967		2145
968	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2146	push @neigh,
		2147	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2148	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2149	}
969		2150
970	#############################################################################	2151	for (grep defined $_->[0], @neigh) {
971	# load/save perl data associated with player->ob objects	2152	my ($path, $origin) = @$_;
972		2153	my $neigh = find $path, $origin
973	sub all_objects(@) {	2154	or next;
974	@_, map all_objects ($_->inv), @_	2155	$neigh->load;
		2156	}
975	}	2157	}
976		2158
977	# TODO: compatibility cruft, remove when no longer needed	2159	sub find_sync {
978	cf::player->attach (	2160	my ($path, $origin) = @_;
979	on_load => sub {
980	my ($pl, $path) = @_;
981		2161
982	for my $o (all_objects $pl->ob) {	2162	cf::sync_job { find $path, $origin }
983	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2163	}
984	$o->set_ob_key_value ("_perl_data");
985		2164
986	%$o = %{ Storable::thaw pack "H*", $value };	2165	sub do_load_sync {
		2166	my ($map) = @_;
		2167
		2168	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2169	if $Coro::current == $Coro::main;
		2170
		2171	cf::sync_job { $map->load };
		2172	}
		2173
		2174	our %MAP_PREFETCH;
		2175	our $MAP_PREFETCHER = undef;
		2176
		2177	sub find_async {
		2178	my ($path, $origin, $load) = @_;
		2179
		2180	$path = normalise $path, $origin && $origin->{path};
		2181
		2182	if (my $map = $cf::MAP{$path}) {
		2183	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2184	}
		2185
		2186	$MAP_PREFETCH{$path} |= $load;
		2187
		2188	$MAP_PREFETCHER ||= cf::async {
		2189	$Coro::current->{desc} = "map prefetcher";
		2190
		2191	while (%MAP_PREFETCH) {
		2192	while (my ($k, $v) = each %MAP_PREFETCH) {
		2193	if (my $map = find $k) {
		2194	$map->load if $v;
		2195	}
		2196
		2197	delete $MAP_PREFETCH{$k};
987	}	2198	}
988	}	2199	}
		2200	undef $MAP_PREFETCHER;
		2201	};
		2202	$MAP_PREFETCHER->prio (6);
		2203
		2204	()
		2205	}
		2206
		2207	sub save {
		2208	my ($self) = @_;
		2209
		2210	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2211
		2212	$self->{last_save} = $cf::RUNTIME;
		2213
		2214	return unless $self->dirty;
		2215
		2216	my $save = $self->save_path; utf8::encode $save;
		2217	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2218
		2219	$self->{load_path} = $save;
		2220
		2221	return if $self->{deny_save};
		2222
		2223	local $self->{last_access} = $self->last_access;#d#
		2224
		2225	cf::async {
		2226	$Coro::current->{desc} = "map player save";
		2227	$_->contr->save for $self->players;
		2228	};
		2229
		2230	if ($uniq) {
		2231	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2232	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2233	} else {
		2234	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
989	},	2235	}
990	);	2236	}
991		2237
992	#############################################################################	2238	sub swap_out {
		2239	my ($self) = @_;
993		2240
994	=head2 CORE EXTENSIONS	2241	# save first because save cedes
		2242	$self->save;
995		2243
996	Functions and methods that extend core crossfire objects.	2244	my $lock = cf::lock_acquire "map_data:$self->{path}";
997		2245
998	=head3 cf::player	2246	return if $self->players;
		2247	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2248	return if $self->{deny_save};
		2249
		2250	$self->in_memory (cf::MAP_SWAPPED);
		2251
		2252	$self->deactivate;
		2253	$_->clear_links_to ($self) for values %cf::MAP;
		2254	$self->clear;
		2255	}
		2256
		2257	sub reset_at {
		2258	my ($self) = @_;
		2259
		2260	# TODO: safety, remove and allow resettable per-player maps
		2261	return 1e99 if $self->{deny_reset};
		2262
		2263	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2264	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2265
		2266	$time + $to
		2267	}
		2268
		2269	sub should_reset {
		2270	my ($self) = @_;
		2271
		2272	$self->reset_at <= $cf::RUNTIME
		2273	}
		2274
		2275	sub reset {
		2276	my ($self) = @_;
		2277
		2278	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2279
		2280	return if $self->players;
		2281
		2282	warn "resetting map ", $self->path;
		2283
		2284	$self->in_memory (cf::MAP_SWAPPED);
		2285
		2286	# need to save uniques path
		2287	unless ($self->{deny_save}) {
		2288	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2289
		2290	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2291	if $uniq;
		2292	}
		2293
		2294	delete $cf::MAP{$self->path};
		2295
		2296	$self->deactivate;
		2297	$_->clear_links_to ($self) for values %cf::MAP;
		2298	$self->clear;
		2299
		2300	$self->unlink_save;
		2301	$self->destroy;
		2302	}
		2303
		2304	my $nuke_counter = "aaaa";
		2305
		2306	sub nuke {
		2307	my ($self) = @_;
		2308
		2309	{
		2310	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2311
		2312	delete $cf::MAP{$self->path};
		2313
		2314	$self->unlink_save;
		2315
		2316	bless $self, "cf::map";
		2317	delete $self->{deny_reset};
		2318	$self->{deny_save} = 1;
		2319	$self->reset_timeout (1);
		2320	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2321
		2322	$cf::MAP{$self->path} = $self;
		2323	}
		2324
		2325	$self->reset; # polite request, might not happen
		2326	}
		2327
		2328	=item $maps = cf::map::tmp_maps
		2329
		2330	Returns an arrayref with all map paths of currently instantiated and saved
		2331	maps. May block.
		2332
		2333	=cut
		2334
		2335	sub tmp_maps() {
		2336	[
		2337	map {
		2338	utf8::decode $_;
		2339	/\.map$/
		2340	? normalise $_
		2341	: ()
		2342	} @{ aio_readdir $TMPDIR or [] }
		2343	]
		2344	}
		2345
		2346	=item $maps = cf::map::random_maps
		2347
		2348	Returns an arrayref with all map paths of currently instantiated and saved
		2349	random maps. May block.
		2350
		2351	=cut
		2352
		2353	sub random_maps() {
		2354	[
		2355	map {
		2356	utf8::decode $_;
		2357	/\.map$/
		2358	? normalise "?random/$_"
		2359	: ()
		2360	} @{ aio_readdir $RANDOMDIR or [] }
		2361	]
		2362	}
		2363
		2364	=item cf::map::unique_maps
		2365
		2366	Returns an arrayref of paths of all shared maps that have
		2367	instantiated unique items. May block.
		2368
		2369	=cut
		2370
		2371	sub unique_maps() {
		2372	[
		2373	map {
		2374	utf8::decode $_;
		2375	/\.map$/
		2376	? normalise $_
		2377	: ()
		2378	} @{ aio_readdir $UNIQUEDIR or [] }
		2379	]
		2380	}
		2381
		2382	=back
		2383
		2384	=head3 cf::object
		2385
		2386	=cut
		2387
		2388	package cf::object;
999		2389
1000	=over 4	2390	=over 4
1001		2391
1002	=item cf::player::exists $login	2392	=item $ob->inv_recursive
1003		2393
1004	Returns true when the given account exists.	2394	Returns the inventory of the object _and_ their inventories, recursively.
1005		2395
1006	=cut	2396	=cut
1007		2397
1008	sub cf::player::exists($) {	2398	sub inv_recursive_;
1009	cf::player::find $_[0]	2399	sub inv_recursive_ {
1010	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2400	map { $_, inv_recursive_ $_->inv } @_
1011	}	2401	}
1012		2402
1013	=item $player->ext_reply ($msgid, $msgtype, %msg)	2403	sub inv_recursive {
1014		2404	inv_recursive_ inv $_[0]
1015	Sends an ext reply to the player.
1016
1017	=cut
1018
1019	sub cf::player::ext_reply($$$%) {
1020	my ($self, $id, %msg) = @_;
1021
1022	$msg{msgid} = $id;
1023
1024	$self->send ("ext " . to_json \%msg);
1025	}	2405	}
		2406
		2407	=item $ref = $ob->ref
		2408
		2409	creates and returns a persistent reference to an objetc that can be stored as a string.
		2410
		2411	=item $ob = cf::object::deref ($refstring)
		2412
		2413	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2414	even if the object actually exists. May block.
		2415
		2416	=cut
		2417
		2418	sub deref {
		2419	my ($ref) = @_;
		2420
		2421	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2422	my ($uuid, $name) = ($1, $2);
		2423	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2424	or return;
		2425	$pl->ob->uuid eq $uuid
		2426	or return;
		2427
		2428	$pl->ob
		2429	} else {
		2430	warn "$ref: cannot resolve object reference\n";
		2431	undef
		2432	}
		2433	}
		2434
		2435	package cf;
1026		2436
1027	=back	2437	=back
1028		2438
1029	=head3 cf::object::player	2439	=head3 cf::object::player
1030		2440
…		…
1046		2456
1047	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2457	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1048		2458
1049	if ($self->{record_replies}) {	2459	if ($self->{record_replies}) {
1050	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2460	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2461
1051	} else {	2462	} else {
		2463	my $pl = $self->contr;
		2464
		2465	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2466	my $dialog = $pl->{npc_dialog};
		2467	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2468
		2469	} else {
1052	$msg = $npc->name . " says: $msg" if $npc;	2470	$msg = $npc->name . " says: $msg" if $npc;
1053	$self->message ($msg, $flags);	2471	$self->message ($msg, $flags);
		2472	}
1054	}	2473	}
		2474	}
		2475
		2476	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2477
		2478	=cut
		2479
		2480	sub cf::object::send_msg {
		2481	my $pl = shift->contr
		2482	or return;
		2483	$pl->send_msg (@_);
1055	}	2484	}
1056		2485
1057	=item $player_object->may ("access")	2486	=item $player_object->may ("access")
1058		2487
1059	Returns wether the given player is authorized to access resource "access"	2488	Returns wether the given player is authorized to access resource "access"
…		…
1068	(ref $cf::CFG{"may_$access"}	2497	(ref $cf::CFG{"may_$access"}
1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2498	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1070	: $cf::CFG{"may_$access"})	2499	: $cf::CFG{"may_$access"})
1071	}	2500	}
1072		2501
		2502	=item $player_object->enter_link
		2503
		2504	Freezes the player and moves him/her to a special map (C<{link}>).
		2505
		2506	The player should be reasonably safe there for short amounts of time. You
		2507	I<MUST> call C<leave_link> as soon as possible, though.
		2508
		2509	Will never block.
		2510
		2511	=item $player_object->leave_link ($map, $x, $y)
		2512
		2513	Moves the player out of the special C<{link}> map onto the specified
		2514	map. If the map is not valid (or omitted), the player will be moved back
		2515	to the location he/she was before the call to C<enter_link>, or, if that
		2516	fails, to the emergency map position.
		2517
		2518	Might block.
		2519
		2520	=cut
		2521
		2522	sub link_map {
		2523	unless ($LINK_MAP) {
		2524	$LINK_MAP = cf::map::find "{link}"
		2525	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2526	$LINK_MAP->load;
		2527	}
		2528
		2529	$LINK_MAP
		2530	}
		2531
		2532	sub cf::object::player::enter_link {
		2533	my ($self) = @_;
		2534
		2535	$self->deactivate_recursive;
		2536
		2537	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2538
		2539	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2540	if $self->map && $self->map->{path} ne "{link}";
		2541
		2542	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2543	}
		2544
		2545	sub cf::object::player::leave_link {
		2546	my ($self, $map, $x, $y) = @_;
		2547
		2548	return unless $self->contr->active;
		2549
		2550	my $link_pos = delete $self->{_link_pos};
		2551
		2552	unless ($map) {
		2553	# restore original map position
		2554	($map, $x, $y) = @{ $link_pos || [] };
		2555	$map = cf::map::find $map;
		2556
		2557	unless ($map) {
		2558	($map, $x, $y) = @$EMERGENCY_POSITION;
		2559	$map = cf::map::find $map
		2560	or die "FATAL: cannot load emergency map\n";
		2561	}
		2562	}
		2563
		2564	($x, $y) = (-1, -1)
		2565	unless (defined $x) && (defined $y);
		2566
		2567	# use -1 or undef as default coordinates, not 0, 0
		2568	($x, $y) = ($map->enter_x, $map->enter_y)
		2569	if $x <=0 && $y <= 0;
		2570
		2571	$map->load;
		2572	$map->load_neighbours;
		2573
		2574	return unless $self->contr->active;
		2575	$self->activate_recursive;
		2576
		2577	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2578	$self->enter_map ($map, $x, $y);
		2579	}
		2580
		2581	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2582
		2583	Moves the player to the given map-path and coordinates by first freezing
		2584	her, loading and preparing them map, calling the provided $check callback
		2585	that has to return the map if sucecssful, and then unfreezes the player on
		2586	the new (success) or old (failed) map position. In either case, $done will
		2587	be called at the end of this process.
		2588
		2589	=cut
		2590
		2591	our $GOTOGEN;
		2592
		2593	sub cf::object::player::goto {
		2594	my ($self, $path, $x, $y, $check, $done) = @_;
		2595
		2596	# do generation counting so two concurrent goto's will be executed in-order
		2597	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2598
		2599	$self->enter_link;
		2600
		2601	(async {
		2602	$Coro::current->{desc} = "player::goto $path $x $y";
		2603
		2604	# *tag paths override both path and x|y
		2605	if ($path =~ /^\*(.*)$/) {
		2606	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2607	my $ob = $obs[rand @obs];
		2608
		2609	# see if we actually can go there
		2610	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2611	$ob = $obs[rand @obs];
		2612	} else {
		2613	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2614	}
		2615	# else put us there anyways for now #d#
		2616
		2617	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2618	} else {
		2619	($path, $x, $y) = (undef, undef, undef);
		2620	}
		2621	}
		2622
		2623	my $map = eval {
		2624	my $map = defined $path ? cf::map::find $path : undef;
		2625
		2626	if ($map) {
		2627	$map = $map->customise_for ($self);
		2628	$map = $check->($map) if $check && $map;
		2629	} else {
		2630	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	}
		2632
		2633	$map
		2634	};
		2635
		2636	if ($@) {
		2637	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2638	LOG llevError | logBacktrace, Carp::longmess $@;
		2639	}
		2640
		2641	if ($gen == $self->{_goto_generation}) {
		2642	delete $self->{_goto_generation};
		2643	$self->leave_link ($map, $x, $y);
		2644	}
		2645
		2646	$done->() if $done;
		2647	})->prio (1);
		2648	}
		2649
		2650	=item $player_object->enter_exit ($exit_object)
		2651
		2652	=cut
		2653
		2654	sub parse_random_map_params {
		2655	my ($spec) = @_;
		2656
		2657	my $rmp = { # defaults
		2658	xsize => (cf::rndm 15, 40),
		2659	ysize => (cf::rndm 15, 40),
		2660	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2661	#layout => string,
		2662	};
		2663
		2664	for (split /\n/, $spec) {
		2665	my ($k, $v) = split /\s+/, $_, 2;
		2666
		2667	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2668	}
		2669
		2670	$rmp
		2671	}
		2672
		2673	sub prepare_random_map {
		2674	my ($exit) = @_;
		2675
		2676	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2677
		2678	# all this does is basically replace the /! path by
		2679	# a new random map path (?random/...) with a seed
		2680	# that depends on the exit object
		2681
		2682	my $rmp = parse_random_map_params $exit->msg;
		2683
		2684	if ($exit->map) {
		2685	$rmp->{region} = $exit->region->name;
		2686	$rmp->{origin_map} = $exit->map->path;
		2687	$rmp->{origin_x} = $exit->x;
		2688	$rmp->{origin_y} = $exit->y;
		2689	}
		2690
		2691	$rmp->{random_seed} ||= $exit->random_seed;
		2692
		2693	my $data = cf::encode_json $rmp;
		2694	my $md5 = Digest::MD5::md5_hex $data;
		2695	my $meta = "$RANDOMDIR/$md5.meta";
		2696
		2697	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2698	aio_write $fh, 0, (length $data), $data, 0;
		2699	undef $fh;
		2700	aio_rename "$meta~", $meta;
		2701
		2702	$exit->slaying ("?random/$md5");
		2703	$exit->msg (undef);
		2704	}
		2705	}
		2706
		2707	sub cf::object::player::enter_exit {
		2708	my ($self, $exit) = @_;
		2709
		2710	return unless $self->type == cf::PLAYER;
		2711
		2712	if ($exit->slaying eq "/!") {
		2713	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2714	# the problem is that $exit might not survive long enough
		2715	# so it needs to be done right now, right here
		2716	cf::sync_job { prepare_random_map $exit };
		2717	}
		2718
		2719	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2720	my $hp = $exit->stats->hp;
		2721	my $sp = $exit->stats->sp;
		2722
		2723	$self->enter_link;
		2724
		2725	# if exit is damned, update players death & WoR home-position
		2726	$self->contr->savebed ($slaying, $hp, $sp)
		2727	if $exit->flag (FLAG_DAMNED);
		2728
		2729	(async {
		2730	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2731
		2732	$self->deactivate_recursive; # just to be sure
		2733	unless (eval {
		2734	$self->goto ($slaying, $hp, $sp);
		2735
		2736	1;
		2737	}) {
		2738	$self->message ("Something went wrong deep within the crossfire server. "
		2739	. "I'll try to bring you back to the map you were before. "
		2740	. "Please report this to the dungeon master!",
		2741	cf::NDI_UNIQUE | cf::NDI_RED);
		2742
		2743	warn "ERROR in enter_exit: $@";
		2744	$self->leave_link;
		2745	}
		2746	})->prio (1);
		2747	}
		2748
1073	=head3 cf::client	2749	=head3 cf::client
1074		2750
1075	=over 4	2751	=over 4
1076		2752
1077	=item $client->send_drawinfo ($text, $flags)	2753	=item $client->send_drawinfo ($text, $flags)
…		…
1083		2759
1084	sub cf::client::send_drawinfo {	2760	sub cf::client::send_drawinfo {
1085	my ($self, $text, $flags) = @_;	2761	my ($self, $text, $flags) = @_;
1086		2762
1087	utf8::encode $text;	2763	utf8::encode $text;
1088	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2764	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1089	}	2765	}
1090		2766
		2767	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2768
		2769	Send a drawinfo or msg packet to the client, formatting the msg for the
		2770	client if neccessary. C<$type> should be a string identifying the type of
		2771	the message, with C<log> being the default. If C<$color> is negative, suppress
		2772	the message unless the client supports the msg packet.
		2773
		2774	=cut
		2775
		2776	# non-persistent channels (usually the info channel)
		2777	our %CHANNEL = (
		2778	"c/identify" => {
		2779	id => "infobox",
		2780	title => "Identify",
		2781	reply => undef,
		2782	tooltip => "Items recently identified",
		2783	},
		2784	"c/examine" => {
		2785	id => "infobox",
		2786	title => "Examine",
		2787	reply => undef,
		2788	tooltip => "Signs and other items you examined",
		2789	},
		2790	"c/book" => {
		2791	id => "infobox",
		2792	title => "Book",
		2793	reply => undef,
		2794	tooltip => "The contents of a note or book",
		2795	},
		2796	"c/lookat" => {
		2797	id => "infobox",
		2798	title => "Look",
		2799	reply => undef,
		2800	tooltip => "What you saw there",
		2801	},
		2802	"c/who" => {
		2803	id => "infobox",
		2804	title => "Players",
		2805	reply => undef,
		2806	tooltip => "Shows players who are currently online",
		2807	},
		2808	"c/body" => {
		2809	id => "infobox",
		2810	title => "Body Parts",
		2811	reply => undef,
		2812	tooltip => "Shows which body parts you posess and are available",
		2813	},
		2814	"c/uptime" => {
		2815	id => "infobox",
		2816	title => "Uptime",
		2817	reply => undef,
		2818	tooltip => "How long the server has been running since last restart",
		2819	},
		2820	"c/mapinfo" => {
		2821	id => "infobox",
		2822	title => "Map Info",
		2823	reply => undef,
		2824	tooltip => "Information related to the maps",
		2825	},
		2826	);
		2827
		2828	sub cf::client::send_msg {
		2829	my ($self, $channel, $msg, $color, @extra) = @_;
		2830
		2831	$msg = $self->pl->expand_cfpod ($msg);
		2832
		2833	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2834
		2835	# check predefined channels, for the benefit of C
		2836	if ($CHANNEL{$channel}) {
		2837	$channel = $CHANNEL{$channel};
		2838
		2839	$self->ext_msg (channel_info => $channel)
		2840	if $self->can_msg;
		2841
		2842	$channel = $channel->{id};
		2843
		2844	} elsif (ref $channel) {
		2845	# send meta info to client, if not yet sent
		2846	unless (exists $self->{channel}{$channel->{id}}) {
		2847	$self->{channel}{$channel->{id}} = $channel;
		2848	$self->ext_msg (channel_info => $channel)
		2849	if $self->can_msg;
		2850	}
		2851
		2852	$channel = $channel->{id};
		2853	}
		2854
		2855	return unless @extra || length $msg;
		2856
		2857	if ($self->can_msg) {
		2858	# default colour, mask it out
		2859	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2860	if $color & cf::NDI_DEF;
		2861
		2862	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2863	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2864	} else {
		2865	if ($color >= 0) {
		2866	# replace some tags by gcfclient-compatible ones
		2867	for ($msg) {
		2868	1 while
		2869	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2870	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2871	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2872	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2873	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2874	}
		2875
		2876	$color &= cf::NDI_COLOR_MASK;
		2877
		2878	utf8::encode $msg;
		2879
		2880	if (0 && $msg =~ /\[/) {
		2881	# COMMAND/INFO
		2882	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2883	} else {
		2884	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2885	$self->send_packet ("drawinfo $color $msg")
		2886	}
		2887	}
		2888	}
		2889	}
		2890
		2891	=item $client->ext_msg ($type, @msg)
		2892
		2893	Sends an ext event to the client.
		2894
		2895	=cut
		2896
		2897	sub cf::client::ext_msg($$@) {
		2898	my ($self, $type, @msg) = @_;
		2899
		2900	if ($self->extcmd == 2) {
		2901	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2902	} elsif ($self->extcmd == 1) { # TODO: remove
		2903	push @msg, msgtype => "event_$type";
		2904	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2905	}
		2906	}
		2907
		2908	=item $client->ext_reply ($msgid, @msg)
		2909
		2910	Sends an ext reply to the client.
		2911
		2912	=cut
		2913
		2914	sub cf::client::ext_reply($$@) {
		2915	my ($self, $id, @msg) = @_;
		2916
		2917	if ($self->extcmd == 2) {
		2918	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2919	} elsif ($self->extcmd == 1) {
		2920	#TODO: version 1, remove
		2921	unshift @msg, msgtype => "reply", msgid => $id;
		2922	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2923	}
		2924	}
1091		2925
1092	=item $success = $client->query ($flags, "text", \&cb)	2926	=item $success = $client->query ($flags, "text", \&cb)
1093		2927
1094	Queues a query to the client, calling the given callback with	2928	Queues a query to the client, calling the given callback with
1095	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2929	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1096	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2930	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1097		2931
1098	Queries can fail, so check the return code. Or don't, as queries will become	2932	Queries can fail, so check the return code. Or don't, as queries will
1099	reliable at some point in the future.	2933	become reliable at some point in the future.
1100		2934
1101	=cut	2935	=cut
1102		2936
1103	sub cf::client::query {	2937	sub cf::client::query {
1104	my ($self, $flags, $text, $cb) = @_;	2938	my ($self, $flags, $text, $cb) = @_;
…		…
1112	utf8::encode $text;	2946	utf8::encode $text;
1113	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2947	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1114		2948
1115	$self->send_packet ($self->{query_queue}[0][0])	2949	$self->send_packet ($self->{query_queue}[0][0])
1116	if @{ $self->{query_queue} } == 1;	2950	if @{ $self->{query_queue} } == 1;
		2951
		2952	1
1117	}	2953	}
1118		2954
1119	cf::client->attach (	2955	cf::client->attach (
		2956	on_connect => sub {
		2957	my ($ns) = @_;
		2958
		2959	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2960	},
1120	on_reply => sub {	2961	on_reply => sub {
1121	my ($ns, $msg) = @_;	2962	my ($ns, $msg) = @_;
1122		2963
1123	# this weird shuffling is so that direct followup queries	2964	# this weird shuffling is so that direct followup queries
1124	# get handled first	2965	# get handled first
1125	my $queue = delete $ns->{query_queue};	2966	my $queue = delete $ns->{query_queue}
		2967	or return; # be conservative, not sure how that can happen, but we saw a crash here
1126		2968
1127	(shift @$queue)->[1]->($msg);	2969	(shift @$queue)->[1]->($msg);
		2970	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1128		2971
1129	push @{ $ns->{query_queue} }, @$queue;	2972	push @{ $ns->{query_queue} }, @$queue;
1130		2973
1131	if (@{ $ns->{query_queue} } == @$queue) {	2974	if (@{ $ns->{query_queue} } == @$queue) {
1132	if (@$queue) {	2975	if (@$queue) {
…		…
1134	} else {	2977	} else {
1135	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2978	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1136	}	2979	}
1137	}	2980	}
1138	},	2981	},
		2982	on_exticmd => sub {
		2983	my ($ns, $buf) = @_;
		2984
		2985	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2986
		2987	if (ref $msg) {
		2988	my ($type, $reply, @payload) =
		2989	"ARRAY" eq ref $msg
		2990	? @$msg
		2991	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2992
		2993	my @reply;
		2994
		2995	if (my $cb = $EXTICMD{$type}) {
		2996	@reply = $cb->($ns, @payload);
		2997	}
		2998
		2999	$ns->ext_reply ($reply, @reply)
		3000	if $reply;
		3001
		3002	} else {
		3003	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3004	}
		3005
		3006	cf::override;
		3007	},
1139	);	3008	);
1140		3009
1141	=item $client->coro (\&cb)	3010	=item $client->async (\&cb)
1142		3011
1143	Create a new coroutine, running the specified callback. The coroutine will	3012	Create a new coroutine, running the specified callback. The coroutine will
1144	be automatically cancelled when the client gets destroyed (e.g. on logout,	3013	be automatically cancelled when the client gets destroyed (e.g. on logout,
1145	or loss of connection).	3014	or loss of connection).
1146		3015
1147	=cut	3016	=cut
1148		3017
1149	sub cf::client::coro {	3018	sub cf::client::async {
1150	my ($self, $cb) = @_;	3019	my ($self, $cb) = @_;
1151		3020
1152	my $coro; $coro = async {	3021	my $coro = &Coro::async ($cb);
1153	eval {
1154	$cb->();
1155	};
1156	warn $@ if $@;
1157	};
1158		3022
1159	$coro->on_destroy (sub {	3023	$coro->on_destroy (sub {
1160	delete $self->{_coro}{$coro+0};	3024	delete $self->{_coro}{$coro+0};
1161	});	3025	});
1162		3026
…		…
1189	our $safe = new Safe "safe";	3053	our $safe = new Safe "safe";
1190	our $safe_hole = new Safe::Hole;	3054	our $safe_hole = new Safe::Hole;
1191		3055
1192	$SIG{FPE} = 'IGNORE';	3056	$SIG{FPE} = 'IGNORE';
1193		3057
1194	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3058	$safe->permit_only (Opcode::opset qw(
		3059	:base_core :base_mem :base_orig :base_math
		3060	grepstart grepwhile mapstart mapwhile
		3061	sort time
		3062	));
1195		3063
1196	# here we export the classes and methods available to script code	3064	# here we export the classes and methods available to script code
1197		3065
1198	=pod	3066	=pod
1199		3067
1200	The following fucntions and emthods are available within a safe environment:	3068	The following functions and methods are available within a safe environment:
1201		3069
1202	cf::object contr pay_amount pay_player map	3070	cf::object
		3071	contr pay_amount pay_player map x y force_find force_add destroy
		3072	insert remove name archname title slaying race decrease_ob_nr
		3073
1203	cf::object::player player	3074	cf::object::player
1204	cf::player peaceful	3075	player
1205	cf::map trigger	3076
		3077	cf::player
		3078	peaceful
		3079
		3080	cf::map
		3081	trigger
1206		3082
1207	=cut	3083	=cut
1208		3084
1209	for (	3085	for (
1210	["cf::object" => qw(contr pay_amount pay_player map)],	3086	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3087	insert remove inv name archname title slaying race
		3088	decrease_ob_nr destroy)],
1211	["cf::object::player" => qw(player)],	3089	["cf::object::player" => qw(player)],
1212	["cf::player" => qw(peaceful)],	3090	["cf::player" => qw(peaceful)],
1213	["cf::map" => qw(trigger)],	3091	["cf::map" => qw(trigger)],
1214	) {	3092	) {
1215	no strict 'refs';	3093	no strict 'refs';
…		…
1286	=back	3164	=back
1287		3165
1288	=cut	3166	=cut
1289		3167
1290	#############################################################################	3168	#############################################################################
		3169	# the server's init and main functions
1291		3170
1292	=head2 EXTENSION DATABASE SUPPORT	3171	sub load_facedata($) {
		3172	my ($path) = @_;
1293		3173
1294	Crossfire maintains a very simple database for extension use. It can	3174	# HACK to clear player env face cache, we need some signal framework
1295	currently store anything that can be serialised using Storable, which	3175	# for this (global event?)
1296	excludes objects.	3176	%ext::player_env::MUSIC_FACE_CACHE = ();
1297		3177
1298	The parameter C<$family> should best start with the name of the extension	3178	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1299	using it, it should be unique.
1300		3179
1301	=over 4	3180	warn "loading facedata from $path\n";
1302		3181
1303	=item $hashref = cf::db_get $family	3182	my $facedata;
		3183	0 < aio_load $path, $facedata
		3184	or die "$path: $!";
1304		3185
1305	Return a hashref for use by the extension C<$family>, which can be	3186	$facedata = Coro::Storable::thaw $facedata;
1306	modified. After modifications, you have to call C<cf::db_dirty> or
1307	C<cf::db_sync>.
1308		3187
1309	=item $value = cf::db_get $family => $key	3188	$facedata->{version} == 2
		3189	or cf::cleanup "$path: version mismatch, cannot proceed.";
1310		3190
1311	Returns a single value from the database	3191	# patch in the exptable
1312		3192	$facedata->{resource}{"res/exp_table"} = {
1313	=item cf::db_put $family => $hashref	3193	type => FT_RSRC,
1314		3194	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1315	Stores the given family hashref into the database. Updates are delayed, if
1316	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1317
1318	=item cf::db_put $family => $key => $value
1319
1320	Stores the given C<$value> in the family hash. Updates are delayed, if you
1321	want the data to be synced to disk immediately, use C<cf::db_sync>.
1322
1323	=item cf::db_dirty
1324
1325	Marks the database as dirty, to be updated at a later time.
1326
1327	=item cf::db_sync
1328
1329	Immediately write the database to disk I<if it is dirty>.
1330
1331	=cut
1332
1333	our $DB;
1334
1335	{
1336	my $path = cf::localdir . "/database.pst";
1337
1338	sub db_load() {
1339	warn "loading database $path\n";#d# remove later
1340	$DB = stat $path ? Storable::retrieve $path : { };
1341	}
1342
1343	my $pid;
1344
1345	sub db_save() {
1346	warn "saving database $path\n";#d# remove later
1347	waitpid $pid, 0 if $pid;
1348	if (0 == ($pid = fork)) {
1349	$DB->{_meta}{version} = 1;
1350	Storable::nstore $DB, "$path~";
1351	rename "$path~", $path;
1352	cf::_exit 0 if defined $pid;
1353	}
1354	}
1355
1356	my $dirty;
1357
1358	sub db_sync() {
1359	db_save if $dirty;
1360	undef $dirty;
1361	}
1362
1363	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1364	db_sync;
1365	});	3195	};
		3196	cf::cede_to_tick;
1366		3197
1367	sub db_dirty() {
1368	$dirty = 1;
1369	$idle->start;
1370	}	3198	{
		3199	my $faces = $facedata->{faceinfo};
1371		3200
1372	sub db_get($;$) {	3201	while (my ($face, $info) = each %$faces) {
1373	@_ >= 2	3202	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1374	? $DB->{$_[0]}{$_[1]}
1375	: ($DB->{$_[0]} ||= { })
1376	}
1377		3203
1378	sub db_put($$;$) {	3204	cf::face::set_visibility $idx, $info->{visibility};
1379	if (@_ >= 3) {	3205	cf::face::set_magicmap $idx, $info->{magicmap};
1380	$DB->{$_[0]}{$_[1]} = $_[2];	3206	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1381	} else {	3207	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1382	$DB->{$_[0]} = $_[1];
1383	}
1384	db_dirty;
1385	}
1386		3208
1387	cf::global->attach (	3209	cf::cede_to_tick;
1388	prio => 10000,
1389	on_cleanup => sub {
1390	db_sync;
1391	},	3210	}
1392	);
1393	}
1394		3211
1395	#############################################################################	3212	while (my ($face, $info) = each %$faces) {
1396	# the server's main()	3213	next unless $info->{smooth};
1397		3214
1398	sub cfg_load {	3215	my $idx = cf::face::find $face
		3216	or next;
		3217
		3218	if (my $smooth = cf::face::find $info->{smooth}) {
		3219	cf::face::set_smooth $idx, $smooth;
		3220	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3221	} else {
		3222	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3223	}
		3224
		3225	cf::cede_to_tick;
		3226	}
		3227	}
		3228
		3229	{
		3230	my $anims = $facedata->{animinfo};
		3231
		3232	while (my ($anim, $info) = each %$anims) {
		3233	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3234	cf::cede_to_tick;
		3235	}
		3236
		3237	cf::anim::invalidate_all; # d'oh
		3238	}
		3239
		3240	{
		3241	# TODO: for gcfclient pleasure, we should give resources
		3242	# that gcfclient doesn't grok a >10000 face index.
		3243	my $res = $facedata->{resource};
		3244
		3245	while (my ($name, $info) = each %$res) {
		3246	if (defined $info->{type}) {
		3247	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3248	my $data;
		3249
		3250	if ($info->{type} & 1) {
		3251	# prepend meta info
		3252
		3253	my $meta = $enc->encode ({
		3254	name => $name,
		3255	%{ $info->{meta} || {} },
		3256	});
		3257
		3258	$data = pack "(w/a*)*", $meta, $info->{data};
		3259	} else {
		3260	$data = $info->{data};
		3261	}
		3262
		3263	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3264	cf::face::set_type $idx, $info->{type};
		3265	} else {
		3266	$RESOURCE{$name} = $info;
		3267	}
		3268
		3269	cf::cede_to_tick;
		3270	}
		3271	}
		3272
		3273	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3274
		3275	1
		3276	}
		3277
		3278	cf::global->attach (on_resource_update => sub {
		3279	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3280	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3281
		3282	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3283	my $sound = $soundconf->{compat}[$_]
		3284	or next;
		3285
		3286	my $face = cf::face::find "sound/$sound->[1]";
		3287	cf::sound::set $sound->[0] => $face;
		3288	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3289	}
		3290
		3291	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3292	my $face = cf::face::find "sound/$v";
		3293	cf::sound::set $k => $face;
		3294	}
		3295	}
		3296	});
		3297
		3298	register_exticmd fx_want => sub {
		3299	my ($ns, $want) = @_;
		3300
		3301	while (my ($k, $v) = each %$want) {
		3302	$ns->fx_want ($k, $v);
		3303	}
		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	#d# NEED to laod twice to resolve forward references
		3329	# this really needs to be done in an extra post-pass
		3330	# (which needs to be synchronous, so solve it differently)
		3331	load_resource_file "$DATADIR/archetypes"
		3332	or die "unable to load archetypes\n";
		3333	}
		3334
		3335	sub reload_treasures {
		3336	load_resource_file "$DATADIR/treasures"
		3337	or die "unable to load treasurelists\n";
		3338	}
		3339
		3340	sub reload_resources {
		3341	warn "reloading resource files...\n";
		3342
		3343	reload_regions;
		3344	reload_facedata;
		3345	#reload_archetypes;#d#
		3346	reload_archetypes;
		3347	reload_treasures;
		3348
		3349	warn "finished reloading resource files\n";
		3350	}
		3351
		3352	sub init {
		3353	reload_resources;
		3354	}
		3355
		3356	sub reload_config {
1399	open my $fh, "<:utf8", cf::confdir . "/config"	3357	open my $fh, "<:utf8", "$CONFDIR/config"
1400	or return;	3358	or return;
1401		3359
1402	local $/;	3360	local $/;
1403	*CFG = YAML::Syck::Load <$fh>;	3361	*CFG = YAML::Load <$fh>;
		3362
		3363	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3364
		3365	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3366	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3367
		3368	if (exists $CFG{mlockall}) {
		3369	eval {
		3370	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3371	and die "WARNING: m(un)lockall failed: $!\n";
		3372	};
		3373	warn $@ if $@;
		3374	}
1404	}	3375	}
1405		3376
1406	sub main {	3377	sub main {
1407	# we must not ever block the main coroutine	3378	# we must not ever block the main coroutine
1408	local $Coro::idle = sub {	3379	local $Coro::idle = sub {
1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3380	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1410	(Coro::unblock_sub {	3381	(async {
1411	Event::one_event;	3382	$Coro::current->{desc} = "IDLE BUG HANDLER";
1412	})->();	3383	EV::loop EV::LOOP_ONESHOT;
		3384	})->prio (Coro::PRIO_MAX);
1413	};	3385	};
1414		3386
1415	cfg_load;	3387	reload_config;
1416	db_load;	3388	db_init;
1417	load_extensions;	3389	load_extensions;
		3390
		3391	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3392	evthread_start IO::AIO::poll_fileno;
1418	Event::loop;	3393	EV::loop;
1419	}	3394	}
1420		3395
1421	#############################################################################	3396	#############################################################################
1422	# initialisation	3397	# initialisation and cleanup
1423		3398
1424	sub perl_reload() {	3399	# install some emergency cleanup handlers
		3400	BEGIN {
		3401	our %SIGWATCHER = ();
		3402	for my $signal (qw(INT HUP TERM)) {
		3403	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3404	cf::cleanup "SIG$signal";
		3405	};
		3406	}
		3407	}
		3408
		3409	sub write_runtime_sync {
		3410	my $runtime = "$LOCALDIR/runtime";
		3411
		3412	# first touch the runtime file to show we are still running:
		3413	# the fsync below can take a very very long time.
		3414
		3415	IO::AIO::aio_utime $runtime, undef, undef;
		3416
		3417	my $guard = cf::lock_acquire "write_runtime";
		3418
		3419	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3420	or return;
		3421
		3422	my $value = $cf::RUNTIME + 90 + 10;
		3423	# 10 is the runtime save interval, for a monotonic clock
		3424	# 60 allows for the watchdog to kill the server.
		3425
		3426	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3427	and return;
		3428
		3429	# always fsync - this file is important
		3430	aio_fsync $fh
		3431	and return;
		3432
		3433	# touch it again to show we are up-to-date
		3434	aio_utime $fh, undef, undef;
		3435
		3436	close $fh
		3437	or return;
		3438
		3439	aio_rename "$runtime~", $runtime
		3440	and return;
		3441
		3442	warn "runtime file written.\n";
		3443
		3444	1
		3445	}
		3446
		3447	our $uuid_lock;
		3448	our $uuid_skip;
		3449
		3450	sub write_uuid_sync($) {
		3451	$uuid_skip ||= $_[0];
		3452
		3453	return if $uuid_lock;
		3454	local $uuid_lock = 1;
		3455
		3456	my $uuid = "$LOCALDIR/uuid";
		3457
		3458	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3459	or return;
		3460
		3461	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3462	$uuid_skip = 0;
		3463
		3464	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3465	and return;
		3466
		3467	# always fsync - this file is important
		3468	aio_fsync $fh
		3469	and return;
		3470
		3471	close $fh
		3472	or return;
		3473
		3474	aio_rename "$uuid~", $uuid
		3475	and return;
		3476
		3477	warn "uuid file written ($value).\n";
		3478
		3479	1
		3480
		3481	}
		3482
		3483	sub write_uuid($$) {
		3484	my ($skip, $sync) = @_;
		3485
		3486	$sync ? write_uuid_sync $skip
		3487	: async { write_uuid_sync $skip };
		3488	}
		3489
		3490	sub emergency_save() {
		3491	my $freeze_guard = cf::freeze_mainloop;
		3492
		3493	warn "enter emergency perl save\n";
		3494
		3495	cf::sync_job {
		3496	# use a peculiar iteration method to avoid tripping on perl
		3497	# refcount bugs in for. also avoids problems with players
		3498	# and maps saved/destroyed asynchronously.
		3499	warn "begin emergency player save\n";
		3500	for my $login (keys %cf::PLAYER) {
		3501	my $pl = $cf::PLAYER{$login} or next;
		3502	$pl->valid or next;
		3503	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3504	$pl->save;
		3505	}
		3506	warn "end emergency player save\n";
		3507
		3508	warn "begin emergency map save\n";
		3509	for my $path (keys %cf::MAP) {
		3510	my $map = $cf::MAP{$path} or next;
		3511	$map->valid or next;
		3512	$map->save;
		3513	}
		3514	warn "end emergency map save\n";
		3515
		3516	warn "begin emergency database checkpoint\n";
		3517	BDB::db_env_txn_checkpoint $DB_ENV;
		3518	warn "end emergency database checkpoint\n";
		3519
		3520	warn "begin write uuid\n";
		3521	write_uuid_sync 1;
		3522	warn "end write uuid\n";
		3523	};
		3524
		3525	warn "leave emergency perl save\n";
		3526	}
		3527
		3528	sub post_cleanup {
		3529	my ($make_core) = @_;
		3530
		3531	warn Carp::longmess "post_cleanup backtrace"
		3532	if $make_core;
		3533	}
		3534
		3535	sub do_reload_perl() {
1425	# can/must only be called in main	3536	# can/must only be called in main
1426	if ($Coro::current != $Coro::main) {	3537	if ($Coro::current != $Coro::main) {
1427	warn "can only reload from main coroutine\n";	3538	warn "can only reload from main coroutine";
1428	return;	3539	return;
1429	}	3540	}
1430		3541
1431	warn "reloading...";	3542	warn "reloading...";
1432		3543
1433	local $FREEZE = 1;	3544	warn "entering sync_job";
		3545
		3546	cf::sync_job {
		3547	cf::write_runtime_sync; # external watchdog should not bark
1434	cf::emergency_save;	3548	cf::emergency_save;
		3549	cf::write_runtime_sync; # external watchdog should not bark
1435		3550
1436	eval {	3551	warn "syncing database to disk";
		3552	BDB::db_env_txn_checkpoint $DB_ENV;
		3553
1437	# if anything goes wrong in here, we should simply crash as we already saved	3554	# if anything goes wrong in here, we should simply crash as we already saved
1438		3555
1439	# cancel all watchers	3556	warn "flushing outstanding aio requests";
1440	for (Event::all_watchers) {	3557	for (;;) {
1441	$_->cancel if $_->data & WF_AUTOCANCEL;	3558	BDB::flush;
		3559	IO::AIO::flush;
		3560	Coro::cede_notself;
		3561	last unless IO::AIO::nreqs || BDB::nreqs;
		3562	warn "iterate...";
1442	}	3563	}
1443		3564
		3565	++$RELOAD;
		3566
1444	# cancel all extension coros	3567	warn "cancelling all extension coros";
1445	$_->cancel for values %EXT_CORO;	3568	$_->cancel for values %EXT_CORO;
1446	%EXT_CORO = ();	3569	%EXT_CORO = ();
1447		3570
1448	# unload all extensions	3571	warn "removing commands";
1449	for (@exts) {	3572	%COMMAND = ();
		3573
		3574	warn "removing ext/exti commands";
		3575	%EXTCMD = ();
		3576	%EXTICMD = ();
		3577
		3578	warn "unloading/nuking all extensions";
		3579	for my $pkg (@EXTS) {
1450	warn "unloading <$_>";	3580	warn "... unloading $pkg";
1451	unload_extension $_;	3581
		3582	if (my $cb = $pkg->can ("unload")) {
		3583	eval {
		3584	$cb->($pkg);
		3585	1
		3586	} or warn "$pkg unloaded, but with errors: $@";
1452	}	3587	}
1453		3588
		3589	warn "... nuking $pkg";
		3590	Symbol::delete_package $pkg;
		3591	}
		3592
1454	# unload all modules loaded from $LIBDIR	3593	warn "unloading all perl modules loaded from $LIBDIR";
1455	while (my ($k, $v) = each %INC) {	3594	while (my ($k, $v) = each %INC) {
1456	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3595	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1457		3596
1458	warn "removing <$k>";	3597	warn "... unloading $k";
1459	delete $INC{$k};	3598	delete $INC{$k};
1460		3599
1461	$k =~ s/\.pm$//;	3600	$k =~ s/\.pm$//;
1462	$k =~ s/\//::/g;	3601	$k =~ s/\//::/g;
1463		3602
…		…
1466	}	3605	}
1467		3606
1468	Symbol::delete_package $k;	3607	Symbol::delete_package $k;
1469	}	3608	}
1470		3609
1471	# sync database to disk
1472	cf::db_sync;
1473	IO::AIO::flush;
1474
1475	# get rid of safe::, as good as possible	3610	warn "getting rid of safe::, as good as possible";
1476	Symbol::delete_package "safe::$_"	3611	Symbol::delete_package "safe::$_"
1477	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3612	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1478		3613
1479	# remove register_script_function callbacks
1480	# TODO
1481
1482	# unload cf.pm "a bit"	3614	warn "unloading cf.pm \"a bit\"";
1483	delete $INC{"cf.pm"};	3615	delete $INC{"cf.pm"};
		3616	delete $INC{"cf/pod.pm"};
1484		3617
1485	# don't, removes xs symbols, too,	3618	# don't, removes xs symbols, too,
1486	# and global variables created in xs	3619	# and global variables created in xs
1487	#Symbol::delete_package __PACKAGE__;	3620	#Symbol::delete_package __PACKAGE__;
1488		3621
1489	# reload cf.pm	3622	warn "unload completed, starting to reload now";
		3623
1490	warn "reloading cf.pm";	3624	warn "reloading cf.pm";
1491	require cf;	3625	require cf;
1492	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3626	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1493		3627
1494	# load config and database again	3628	warn "loading config and database again";
1495	cf::cfg_load;	3629	cf::reload_config;
1496	cf::db_load;
1497		3630
1498	# load extensions
1499	warn "load extensions";	3631	warn "loading extensions";
1500	cf::load_extensions;	3632	cf::load_extensions;
1501		3633
1502	# reattach attachments to objects	3634	warn "reattaching attachments to objects/players";
1503	warn "reattach";	3635	_global_reattach; # objects, sockets
1504	_global_reattach;	3636	warn "reattaching attachments to maps";
		3637	reattach $_ for values %MAP;
		3638	warn "reattaching attachments to players";
		3639	reattach $_ for values %PLAYER;
		3640
		3641	warn "leaving sync_job";
		3642
		3643	1
		3644	} or do {
		3645	warn $@;
		3646	cf::cleanup "error while reloading, exiting.";
1505	};	3647	};
1506		3648
1507	if ($@) {	3649	warn "reloaded";
1508	warn $@;
1509	warn "error while reloading, exiting.";
1510	exit 1;
1511	}
1512
1513	warn "reloaded successfully";
1514	};	3650	};
1515		3651
1516	#############################################################################	3652	our $RELOAD_WATCHER; # used only during reload
1517		3653
1518	unless ($LINK_MAP) {	3654	sub reload_perl() {
1519	$LINK_MAP = cf::map::new;	3655	# doing reload synchronously and two reloads happen back-to-back,
		3656	# coro crashes during coro_state_free->destroy here.
1520		3657
1521	$LINK_MAP->width (41);	3658	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
1522	$LINK_MAP->height (41);	3659	do_reload_perl;
1523	$LINK_MAP->alloc;	3660	undef $RELOAD_WATCHER;
1524	$LINK_MAP->path ("{link}");	3661	};
1525	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1526	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1527	}	3662	}
1528		3663
1529	register "<global>", __PACKAGE__;
1530
1531	register_command "perl-reload" => sub {	3664	register_command "reload" => sub {
1532	my ($who, $arg) = @_;	3665	my ($who, $arg) = @_;
1533		3666
1534	if ($who->flag (FLAG_WIZ)) {	3667	if ($who->flag (FLAG_WIZ)) {
1535	$who->message ("start of reload.");
1536	perl_reload;
1537	$who->message ("end of reload.");	3668	$who->message ("reloading server.");
		3669	async {
		3670	$Coro::current->{desc} = "perl_reload";
		3671	reload_perl;
		3672	};
1538	}	3673	}
1539	};	3674	};
1540		3675
1541	unshift @INC, $LIBDIR;	3676	unshift @INC, $LIBDIR;
1542		3677
1543	$TICK_WATCHER = Event->timer (	3678	my $bug_warning = 0;
1544	reentrant => 0,	3679
1545	prio => 0,	3680	our @WAIT_FOR_TICK;
1546	at => $NEXT_TICK || $TICK,	3681	our @WAIT_FOR_TICK_BEGIN;
1547	data => WF_AUTOCANCEL,	3682
1548	cb => sub {	3683	sub wait_for_tick {
1549	unless ($FREEZE) {	3684	return if tick_inhibit;
		3685	return if $Coro::current == $Coro::main;
		3686
		3687	my $signal = new Coro::Signal;
		3688	push @WAIT_FOR_TICK, $signal;
		3689	$signal->wait;
		3690	}
		3691
		3692	sub wait_for_tick_begin {
		3693	return if tick_inhibit;
		3694	return if $Coro::current == $Coro::main;
		3695
		3696	my $signal = new Coro::Signal;
		3697	push @WAIT_FOR_TICK_BEGIN, $signal;
		3698	$signal->wait;
		3699	}
		3700
		3701	sub tick {
		3702	if ($Coro::current != $Coro::main) {
		3703	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3704	unless ++$bug_warning > 10;
		3705	return;
		3706	}
		3707
1550	cf::server_tick; # one server iteration	3708	cf::server_tick; # one server iteration
1551	$RUNTIME += $TICK;
1552	}
1553		3709
1554	$NEXT_TICK += $TICK;	3710	if ($NOW >= $NEXT_RUNTIME_WRITE) {
1555		3711	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
1556	# if we are delayed by four ticks or more, skip them all	3712	Coro::async_pool {
1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3713	$Coro::current->{desc} = "runtime saver";
1558
1559	$TICK_WATCHER->at ($NEXT_TICK);
1560	$TICK_WATCHER->start;
1561	},
1562	);
1563
1564	IO::AIO::max_poll_time $TICK * 0.2;
1565
1566	Event->io (
1567	fd => IO::AIO::poll_fileno,
1568	poll => 'r',
1569	prio => 5,
1570	data => WF_AUTOCANCEL,
1571	cb => \&IO::AIO::poll_cb,
1572	);
1573
1574	Event->timer (
1575	data => WF_AUTOCANCEL,
1576	after => 0,
1577	interval => 10,
1578	cb => sub {
1579	(Coro::unblock_sub {
1580	write_runtime	3714	write_runtime_sync
1581	or warn "ERROR: unable to write runtime file: $!";	3715	or warn "ERROR: unable to write runtime file: $!";
1582	})->();	3716	};
1583	},	3717	}
1584	);	3718
		3719	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3720	$sig->send;
		3721	}
		3722	while (my $sig = shift @WAIT_FOR_TICK) {
		3723	$sig->send;
		3724	}
		3725
		3726	$LOAD = ($NOW - $TICK_START) / $TICK;
		3727	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3728
		3729	if (0) {
		3730	if ($NEXT_TICK) {
		3731	my $jitter = $TICK_START - $NEXT_TICK;
		3732	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3733	warn "jitter $JITTER\n";#d#
		3734	}
		3735	}
		3736	}
		3737
		3738	{
		3739	# configure BDB
		3740
		3741	BDB::min_parallel 8;
		3742	BDB::max_poll_reqs $TICK * 0.1;
		3743	$Coro::BDB::WATCHER->priority (1);
		3744
		3745	unless ($DB_ENV) {
		3746	$DB_ENV = BDB::db_env_create;
		3747	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3748	| BDB::LOG_AUTOREMOVE, 1);
		3749	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3750	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3751
		3752	cf::sync_job {
		3753	eval {
		3754	BDB::db_env_open
		3755	$DB_ENV,
		3756	$BDBDIR,
		3757	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3758	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3759	0666;
		3760
		3761	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3762	};
		3763
		3764	cf::cleanup "db_env_open(db): $@" if $@;
		3765	};
		3766	}
		3767
		3768	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3769	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3770	};
		3771	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3772	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3773	};
		3774	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3775	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3776	};
		3777	}
		3778
		3779	{
		3780	# configure IO::AIO
		3781
		3782	IO::AIO::min_parallel 8;
		3783	IO::AIO::max_poll_time $TICK * 0.1;
		3784	$Coro::AIO::WATCHER->priority (1);
		3785	}
		3786
		3787	my $_log_backtrace;
		3788
		3789	sub _log_backtrace {
		3790	my ($msg, @addr) = @_;
		3791
		3792	$msg =~ s/\n//;
		3793
		3794	# limit the # of concurrent backtraces
		3795	if ($_log_backtrace < 2) {
		3796	++$_log_backtrace;
		3797	async {
		3798	$Coro::current->{desc} = "abt $msg";
		3799
		3800	my @bt = fork_call {
		3801	@addr = map { sprintf "%x", $_ } @addr;
		3802	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3803	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3804	or die "addr2line: $!";
		3805
		3806	my @funcs;
		3807	my @res = <$fh>;
		3808	chomp for @res;
		3809	while (@res) {
		3810	my ($func, $line) = splice @res, 0, 2, ();
		3811	push @funcs, "[$func] $line";
		3812	}
		3813
		3814	@funcs
		3815	};
		3816
		3817	LOG llevInfo, "[ABT] $msg\n";
		3818	LOG llevInfo, "[ABT] $_\n" for @bt;
		3819	--$_log_backtrace;
		3820	};
		3821	} else {
		3822	LOG llevInfo, "[ABT] $msg\n";
		3823	LOG llevInfo, "[ABT] [suppressed]\n";
		3824	}
		3825	}
		3826
		3827	# load additional modules
		3828	use cf::pod;
		3829
		3830	END { cf::emergency_save }
1585		3831
1586	1	3832	1
1587		3833

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