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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.431 by elmex, Sun May 4 19:27:27 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
27		60	#
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	61	$Storable::canonical = 1; # reduce rsync transfers
29	$YAML::Syck::ImplicitUnicode = 1;	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
30		64
31	$Coro::main->prio (Coro::PRIO_MAX); # 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 $RANDOM_MAPS = cf::localdir . "/random";	114	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	115
		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 $TICK_START; # for load detecting purposes
56		123
57	binmode STDOUT;	124	binmode STDOUT;
58	binmode STDERR;	125	binmode STDERR;
59		126
60	# read virtual server time, if available	127	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
65	}	132	}
66		133
67	mkdir cf::localdir;	134	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		136
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
		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]) }
182	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
183		300
184	=item cf::lock_wait $string	301	=item cf::lock_wait $string
185		302
186	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
187		304
…		…
190	Wait until the given lock is available and then acquires it and returns	307	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	308	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
193	returned.	310	returned.
194		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
195	Lock names should begin with a unique identifier (for example, cf::map::find	315	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
197		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
198	=cut	322	=cut
199		323
200	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
201		326
202	sub lock_wait($) {	327	sub lock_wait($) {
203	my ($key) = @_;	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#
204		334
205	# wait for lock, if any	335	# wait for lock, if any
206	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	338	Coro::schedule;
…		…
214		344
215	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
216	lock_wait $key;	346	lock_wait $key;
217		347
218	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
219		350
220	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
223	}	355	}
224	}	356	}
225		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
226	sub freeze_mainloop {	364	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
228		366
229	my $guard = Coro::guard { $TICK_WATCHER->start };	367	Coro::guard \&tick_inhibit_dec;
230	$TICK_WATCHER->stop;	368	}
231	$guard	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	return if tick_inhibit || $Coro::current == $Coro::main;
		433
		434	my ($time, $pri, $name) = @_;
		435
		436	$time = $TICK * .6 if $time > $TICK * .6;
		437	my $sig = new Coro::Signal;
		438
		439	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		440	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		441	$SLOT_QUEUE->ready;
		442	$sig->wait;
232	}	443	}
233		444
234	=item cf::async { BLOCK }	445	=item cf::async { BLOCK }
235		446
236	Currently the same as Coro::async_pool, meaning you cannot use	447	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		452
242	BEGIN { *async = \&Coro::async_pool }	453	BEGIN { *async = \&Coro::async_pool }
243		454
244	=item cf::sync_job { BLOCK }	455	=item cf::sync_job { BLOCK }
245		456
246	The design of crossfire+ requires that the main coro ($Coro::main) is	457	The design of Deliantra requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	458	is always able to handle events or runnable, as Deliantra is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	459	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		460	acceptable.
249		461
250	If it must be done, put the blocking parts into C<sync_job>. This will run	462	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	463	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	464	server will be frozen during this time, so the block should either finish
253	fast or be very important.	465	fast or be very important.
…		…
256		468
257	sub sync_job(&) {	469	sub sync_job(&) {
258	my ($job) = @_;	470	my ($job) = @_;
259		471
260	if ($Coro::current == $Coro::main) {	472	if ($Coro::current == $Coro::main) {
		473	my $time = EV::time;
		474
261	# this is the main coro, too bad, we have to block	475	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	476	# till the operation succeeds, freezing the server :/
263		477
264	# TODO: use suspend/resume instead	478	LOG llevError, Carp::longmess "sync job";#d#
265	# (but this is cancel-safe)	479
266	my $freeze_guard = freeze_mainloop;	480	my $freeze_guard = freeze_mainloop;
267		481
268	my $busy = 1;	482	my $busy = 1;
269	my @res;	483	my @res;
270		484
271	(async {	485	(async {
		486	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	487	@res = eval { $job->() };
273	warn $@ if $@;	488	warn $@ if $@;
274	undef $busy;	489	undef $busy;
275	})->prio (Coro::PRIO_MAX);	490	})->prio (Coro::PRIO_MAX);
276		491
277	while ($busy) {	492	while ($busy) {
278	unless (Coro::cede) {	493	if (Coro::nready) {
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;	494	Coro::cede_notself;
		495	} else {
		496	EV::loop EV::LOOP_ONESHOT;
281	}	497	}
282	}	498	}
		499
		500	my $time = EV::time - $time;
		501
		502	$TICK_START += $time; # do not account sync jobs to server load
283		503
284	wantarray ? @res : $res[0]	504	wantarray ? @res : $res[0]
285	} else {	505	} else {
286	# we are in another coroutine, how wonderful, everything just works	506	# we are in another coroutine, how wonderful, everything just works
287		507
…		…
289	}	509	}
290	}	510	}
291		511
292	=item $coro = cf::async_ext { BLOCK }	512	=item $coro = cf::async_ext { BLOCK }
293		513
294	Like async, but this coro is automcatially being canceled when the	514	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	515	extension calling this is being unloaded.
296		516
297	=cut	517	=cut
298		518
299	sub async_ext(&) {	519	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	527	$EXT_CORO{$coro+0} = $coro;
308		528
309	$coro	529	$coro
310	}	530	}
311		531
312	sub write_runtime {	532	=item fork_call { }, $args
313	my $runtime = cf::localdir . "/runtime";
314		533
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	534	Executes the given code block with the given arguments in a seperate
316	or return;	535	process, returning the results. Everything must be serialisable with
		536	Coro::Storable. May, of course, block. Note that the executed sub may
		537	never block itself or use any form of event handling.
317		538
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	539	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		540
322	aio_fsync $fh	541	sub fork_call(&@) {
323	and return;	542	my ($cb, @args) = @_;
324		543
325	close $fh	544	# we seemingly have to make a local copy of the whole thing,
326	or return;	545	# otherwise perl prematurely frees the stuff :/
		546	# TODO: investigate and fix (likely this will be rather laborious)
327		547
328	aio_rename "$runtime~", $runtime	548	my @res = Coro::Util::fork_eval {
329	and return;	549	reset_signals;
		550	&$cb
		551	}, @args;
330		552
		553	wantarray ? @res : $res[-1]
		554	}
		555
		556	=item $coin = coin_from_name $name
		557
		558	=cut
		559
		560	our %coin_alias = (
		561	"silver" => "silvercoin",
		562	"silvercoin" => "silvercoin",
		563	"silvercoins" => "silvercoin",
		564	"gold" => "goldcoin",
		565	"goldcoin" => "goldcoin",
		566	"goldcoins" => "goldcoin",
		567	"platinum" => "platinacoin",
		568	"platinumcoin" => "platinacoin",
		569	"platinumcoins" => "platinacoin",
		570	"platina" => "platinacoin",
		571	"platinacoin" => "platinacoin",
		572	"platinacoins" => "platinacoin",
		573	"royalty" => "royalty",
		574	"royalties" => "royalty",
		575	);
		576
		577	sub coin_from_name($) {
		578	$coin_alias{$_[0]}
		579	? cf::arch::find $coin_alias{$_[0]}
		580	: undef
		581	}
		582
		583	=item $value = cf::db_get $family => $key
		584
		585	Returns a single value from the environment database.
		586
		587	=item cf::db_put $family => $key => $value
		588
		589	Stores the given C<$value> in the family. It can currently store binary
		590	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		591
		592	=item $db = cf::db_table "name"
		593
		594	Create and/or open a new database table. The string must not be "db" and must be unique
		595	within each server.
		596
		597	=cut
		598
		599	sub db_table($) {
		600	my ($name) = @_;
		601	my $db = BDB::db_create $DB_ENV;
		602
		603	eval {
		604	$db->set_flags (BDB::CHKSUM);
		605
		606	utf8::encode $name;
		607	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		608	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		609	cf::cleanup "db_open(db): $!" if $!;
		610	};
		611	cf::cleanup "db_open(db): $@" if $@;
		612
		613	$db
		614	}
		615
		616	our $DB;
		617
		618	sub db_init {
		619	cf::sync_job {
		620	$DB ||= db_table "db";
		621	};
		622	}
		623
		624	sub db_get($$) {
		625	my $key = "$_[0]/$_[1]";
		626
		627	cf::sync_job {
		628	BDB::db_get $DB, undef, $key, my $data;
		629
		630	$! ? ()
		631	: $data
331	1	632	}
		633	}
		634
		635	sub db_put($$$) {
		636	BDB::dbreq_pri 4;
		637	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		638	}
		639
		640	=item cf::cache $id => [$paths...], $processversion => $process
		641
		642	Generic caching function that returns the value of the resource $id,
		643	caching and regenerating as required.
		644
		645	This function can block.
		646
		647	=cut
		648
		649	sub cache {
		650	my ($id, $src, $processversion, $process) = @_;
		651
		652	my $meta =
		653	join "\x00",
		654	$processversion,
		655	map {
		656	aio_stat $_
		657	and Carp::croak "$_: $!";
		658
		659	($_, (stat _)[7,9])
		660	} @$src;
		661
		662	my $dbmeta = db_get cache => "$id/meta";
		663	if ($dbmeta ne $meta) {
		664	# changed, we may need to process
		665
		666	my @data;
		667	my $md5;
		668
		669	for (0 .. $#$src) {
		670	0 <= aio_load $src->[$_], $data[$_]
		671	or Carp::croak "$src->[$_]: $!";
		672	}
		673
		674	# if processing is expensive, check
		675	# checksum first
		676	if (1) {
		677	$md5 =
		678	join "\x00",
		679	$processversion,
		680	map {
		681	cf::cede_to_tick;
		682	($src->[$_], Digest::MD5::md5_hex $data[$_])
		683	} 0.. $#$src;
		684
		685
		686	my $dbmd5 = db_get cache => "$id/md5";
		687	if ($dbmd5 eq $md5) {
		688	db_put cache => "$id/meta", $meta;
		689
		690	return db_get cache => "$id/data";
		691	}
		692	}
		693
		694	my $t1 = Time::HiRes::time;
		695	my $data = $process->(\@data);
		696	my $t2 = Time::HiRes::time;
		697
		698	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		699
		700	db_put cache => "$id/data", $data;
		701	db_put cache => "$id/md5" , $md5;
		702	db_put cache => "$id/meta", $meta;
		703
		704	return $data;
		705	}
		706
		707	db_get cache => "$id/data"
		708	}
		709
		710	=item cf::datalog type => key => value, ...
		711
		712	Log a datalog packet of the given type with the given key-value pairs.
		713
		714	=cut
		715
		716	sub datalog($@) {
		717	my ($type, %kv) = @_;
		718	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
332	}	719	}
333		720
334	=back	721	=back
335		722
336	=cut	723	=cut
337
338	#############################################################################
339
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457		724
458	#############################################################################	725	#############################################################################
459		726
460	=head2 ATTACHABLE OBJECTS	727	=head2 ATTACHABLE OBJECTS
461		728
…		…
463	attach callbacks/event handlers (a collection of which is called an "attachment")	730	attach callbacks/event handlers (a collection of which is called an "attachment")
464	to it. All such attachable objects support the following methods.	731	to it. All such attachable objects support the following methods.
465		732
466	In the following description, CLASS can be any of C<global>, C<object>	733	In the following description, CLASS can be any of C<global>, C<object>
467	C<player>, C<client> or C<map> (i.e. the attachable objects in	734	C<player>, C<client> or C<map> (i.e. the attachable objects in
468	crossfire+).	735	Deliantra).
469		736
470	=over 4	737	=over 4
471		738
472	=item $attachable->attach ($attachment, key => $value...)	739	=item $attachable->attach ($attachment, key => $value...)
473		740
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	854	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	855	our @CB_MAP = ();
589		856
590	my %attachment;	857	my %attachment;
591		858
		859	sub cf::attachable::thawer_merge {
		860	# simply override everything except _meta
		861	local $_[0]{_meta};
		862	%{$_[0]} = %{$_[1]};
		863	}
		864
592	sub _attach_cb($$$$) {	865	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	866	my ($registry, $event, $prio, $cb) = @_;
594		867
595	use sort 'stable';	868	use sort 'stable';
596		869
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	903	$registry = $CB_TYPE[$object_type] ||= [];
631		904
632	} elsif ($type eq "subtype") {	905	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	906	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	907	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	908	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		909
637	} elsif ($type eq "package") {	910	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	911	my $pkg = shift @arg;
639		912
640	while (my ($name, $id) = each %cb_id) {	913	while (my ($name, $id) = each %cb_id) {
…		…
669	_attach $registry, $klass, @attach;	942	_attach $registry, $klass, @attach;
670	}	943	}
671		944
672	$obj->{$name} = \%arg;	945	$obj->{$name} = \%arg;
673	} else {	946	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	947	warn "object uses attachment '$name' which is not available, postponing.\n";
675	}	948	}
676		949
677	$obj->{_attachment}{$name} = undef;	950	$obj->{_attachment}{$name} = undef;
678	}	951	}
679		952
…		…
681	if (ref $_[0]) {	954	if (ref $_[0]) {
682	_object_attach @_;	955	_object_attach @_;
683	} else {	956	} else {
684	_attach shift->_attach_registry, @_;	957	_attach shift->_attach_registry, @_;
685	}	958	}
		959	_recalc_want;
686	};	960	};
687		961
688	# all those should be optimised	962	# all those should be optimised
689	sub cf::attachable::detach {	963	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	964	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	967	delete $obj->{_attachment}{$name};
694	reattach ($obj);	968	reattach ($obj);
695	} else {	969	} else {
696	Carp::croak "cannot, currently, detach class attachments";	970	Carp::croak "cannot, currently, detach class attachments";
697	}	971	}
		972	_recalc_want;
698	};	973	};
699		974
700	sub cf::attachable::attached {	975	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	976	my ($obj, $name) = @_;
702		977
…		…
717	";	992	";
718	die if $@;	993	die if $@;
719	}	994	}
720		995
721	our $override;	996	our $override;
722	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	997	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
723		998
724	sub override {	999	sub override {
725	$override = 1;	1000	$override = 1;
726	@invoke_results = ();	1001	@INVOKE_RESULTS = (@_);
727	}	1002	}
728		1003
729	sub do_invoke {	1004	sub do_invoke {
730	my $event = shift;	1005	my $event = shift;
731	my $callbacks = shift;	1006	my $callbacks = shift;
732		1007
733	@invoke_results = ();	1008	@INVOKE_RESULTS = ();
734		1009
735	local $override;	1010	local $override;
736		1011
737	for (@$callbacks) {	1012	for (@$callbacks) {
738	eval { &{$_->[1]} };	1013	eval { &{$_->[1]} };
…		…
747	}	1022	}
748		1023
749	0	1024	0
750	}	1025	}
751		1026
752	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
753		1028
754	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1029	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
755		1030
756	Generate an object-specific event with the given arguments.	1031	Generate an object-specific event with the given arguments.
757		1032
758	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1033	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
759	removed in future versions), and there is no public API to access override	1034	removed in future versions), and there is no public API to access override
760	results (if you must, access C<@cf::invoke_results> directly).	1035	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
761		1036
762	=back	1037	=back
763		1038
764	=cut	1039	=cut
765		1040
766	#############################################################################	1041	#############################################################################
767	# object support	1042	# object support
		1043
		1044	sub _object_equal($$);
		1045	sub _object_equal($$) {
		1046	my ($a, $b) = @_;
		1047
		1048	return 0 unless (ref $a) eq (ref $b);
		1049
		1050	if ("HASH" eq ref $a) {
		1051	my @ka = keys %$a;
		1052	my @kb = keys %$b;
		1053
		1054	return 0 if @ka != @kb;
		1055
		1056	for (0 .. $#ka) {
		1057	return 0 unless $ka[$_] eq $kb[$_];
		1058	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1059	}
		1060
		1061	} elsif ("ARRAY" eq ref $a) {
		1062
		1063	return 0 if @$a != @$b;
		1064
		1065	for (0 .. $#$a) {
		1066	return 0 unless _object_equal $a->[$_], $b->[$_];
		1067	}
		1068
		1069	} elsif ($a ne $b) {
		1070	return 0;
		1071	}
		1072
		1073	1
		1074	}
		1075
		1076	our $SLOW_MERGES;#d#
		1077	sub _can_merge {
		1078	my ($ob1, $ob2) = @_;
		1079
		1080	++$SLOW_MERGES;#d#
		1081
		1082	# we do the slow way here
		1083	return _object_equal $ob1, $ob2
		1084	}
768		1085
769	sub reattach {	1086	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	1087	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	1088	my ($obj) = @_;
		1089
		1090	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1091
773	my $registry = $obj->registry;	1092	my $registry = $obj->registry;
774		1093
775	@$registry = ();	1094	@$registry = ();
776		1095
…		…
791	cf::attachable->attach (	1110	cf::attachable->attach (
792	prio => -1000000,	1111	prio => -1000000,
793	on_instantiate => sub {	1112	on_instantiate => sub {
794	my ($obj, $data) = @_;	1113	my ($obj, $data) = @_;
795		1114
796	$data = from_json $data;	1115	$data = decode_json $data;
797		1116
798	for (@$data) {	1117	for (@$data) {
799	my ($name, $args) = @$_;	1118	my ($name, $args) = @$_;
800		1119
801	$obj->attach ($name, %{$args || {} });	1120	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1136	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1137	my ($filename, $rdata, $objs) = @_;
819		1138
820	sync_job {	1139	sync_job {
821	if (length $$rdata) {	1140	if (length $$rdata) {
		1141	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1142	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1143	$decname, length $$rdata, scalar @$objs;
824		1144
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1145	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1146	aio_chmod $fh, SAVE_MODE;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1147	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh;	1148	aio_fsync $fh if $cf::USE_FSYNC;
829	close $fh;	1149	aio_close $fh;
830		1150
831	if (@$objs) {	1151	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1152	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1153	aio_chmod $fh, SAVE_MODE;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1154	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1155	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
837	close $fh;	1157	aio_close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1158	aio_rename "$filename.pst~", "$filename.pst";
839	}	1159	}
840	} else {	1160	} else {
841	aio_unlink "$filename.pst";	1161	aio_unlink "$filename.pst";
842	}	1162	}
…		…
847	}	1167	}
848	} else {	1168	} else {
849	aio_unlink $filename;	1169	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1170	aio_unlink "$filename.pst";
851	}	1171	}
852	}	1172	};
853	}	1173	}
854		1174
855	sub object_freezer_as_string {	1175	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1176	my ($rdata, $objs) = @_;
857		1177
…		…
869	or return;	1189	or return;
870		1190
871	unless (aio_stat "$filename.pst") {	1191	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1192	(aio_load "$filename.pst", $av) >= 0
873	or return;	1193	or return;
		1194
874	$av = eval { (Storable::thaw $av)->{objs} };	1195	my $st = eval { Coro::Storable::thaw $av };
		1196	$av = $st->{objs};
875	}	1197	}
876		1198
		1199	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1200	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1201	$decname, length $data, scalar @{$av || []};
		1202
879	return ($data, $av);	1203	($data, $av)
880	}	1204	}
		1205
		1206	=head2 COMMAND CALLBACKS
		1207
		1208	=over 4
		1209
		1210	=cut
881		1211
882	#############################################################################	1212	#############################################################################
883	# command handling &c	1213	# command handling &c
884		1214
885	=item cf::register_command $name => \&callback($ob,$args);	1215	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1228	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1229	}
900		1230
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1231	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1232
903	Register a callbackf ro execution when the client sends an extcmd packet.	1233	Register a callback for execution when the client sends an (synchronous)
		1234	extcmd packet. Ext commands will be processed in the order they are
		1235	received by the server, like other user commands. The first argument is
		1236	the logged-in player. Ext commands can only be processed after a player
		1237	has logged in successfully.
904		1238
905	If the callback returns something, it is sent back as if reply was being	1239	If the callback returns something, it is sent back as if reply was being
906	called.	1240	called.
907		1241
		1242	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1243
		1244	Register a callback for execution when the client sends an (asynchronous)
		1245	exticmd packet. Exti commands are processed by the server as soon as they
		1246	are received, i.e. out of order w.r.t. other commands. The first argument
		1247	is a client socket. Exti commands can be received anytime, even before
		1248	log-in.
		1249
		1250	If the callback returns something, it is sent back as if reply was being
		1251	called.
		1252
908	=cut	1253	=cut
909		1254
910	sub register_extcmd {	1255	sub register_extcmd {
911	my ($name, $cb) = @_;	1256	my ($name, $cb) = @_;
912		1257
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1258	$EXTCMD{$name} = $cb;
		1259	}
		1260
		1261	sub register_exticmd {
		1262	my ($name, $cb) = @_;
		1263
		1264	$EXTICMD{$name} = $cb;
917	}	1265	}
918		1266
919	cf::player->attach (	1267	cf::player->attach (
920	on_command => sub {	1268	on_command => sub {
921	my ($pl, $name, $params) = @_;	1269	my ($pl, $name, $params) = @_;
…		…
930	cf::override;	1278	cf::override;
931	},	1279	},
932	on_extcmd => sub {	1280	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1281	my ($pl, $buf) = @_;
934		1282
935	my $msg = eval { from_json $buf };	1283	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1284
937	if (ref $msg) {	1285	if (ref $msg) {
		1286	my ($type, $reply, @payload) =
		1287	"ARRAY" eq ref $msg
		1288	? @$msg
		1289	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1290
		1291	my @reply;
		1292
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1293	if (my $cb = $EXTCMD{$type}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1294	@reply = $cb->($pl, @payload);
940	$pl->ext_reply ($msg->{msgid}, %reply);
941	}
942	}	1295	}
		1296
		1297	$pl->ext_reply ($reply, @reply)
		1298	if $reply;
		1299
943	} else {	1300	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1301	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
945	}	1302	}
946		1303
947	cf::override;	1304	cf::override;
948	},	1305	},
949	);	1306	);
950		1307
951	sub register {
952	my ($base, $pkg) = @_;
953
954	#TODO
955	}
956
957	sub load_extension {	1308	sub load_extensions {
		1309	cf::sync_job {
		1310	my %todo;
		1311
		1312	for my $path (<$LIBDIR/*.ext>) {
		1313	next unless -r $path;
		1314
		1315	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1316	my $base = $1;
		1317	my $pkg = $1;
		1318	$pkg =~ s/[^[:word:]]/_/g;
		1319	$pkg = "ext::$pkg";
		1320
		1321	open my $fh, "<:utf8", $path
		1322	or die "$path: $!";
		1323
		1324	my $source = do { local $/; <$fh> };
		1325
		1326	my %ext = (
		1327	path => $path,
		1328	base => $base,
		1329	pkg => $pkg,
		1330	);
		1331
		1332	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1333	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1334
		1335	$ext{source} =
		1336	"package $pkg; use strict; use utf8;\n"
		1337	. "#line 1 \"$path\"\n{\n"
		1338	. $source
		1339	. "\n};\n1";
		1340
		1341	$todo{$base} = \%ext;
		1342	}
		1343
		1344	my %done;
		1345	while (%todo) {
		1346	my $progress;
		1347
		1348	while (my ($k, $v) = each %todo) {
		1349	for (split /,\s*/, $v->{meta}{depends}) {
		1350	goto skip
		1351	unless exists $done{$_};
		1352	}
		1353
		1354	warn "... loading '$k' into '$v->{pkg}'\n";
		1355
		1356	unless (eval $v->{source}) {
		1357	my $msg = $@ ? "$v->{path}: $@\n"
		1358	: "$v->{base}: extension inactive.\n";
		1359
		1360	if (exists $v->{meta}{mandatory}) {
		1361	warn $msg;
		1362	cf::cleanup "mandatory extension failed to load, exiting.";
		1363	}
		1364
		1365	warn $msg;
		1366	}
		1367
		1368	$done{$k} = delete $todo{$k};
		1369	push @EXTS, $v->{pkg};
		1370	$progress = 1;
		1371	}
		1372
		1373	skip:
		1374	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1375	unless $progress;
		1376	}
		1377	};
		1378	}
		1379
		1380	#############################################################################
		1381
		1382	=back
		1383
		1384	=head2 CORE EXTENSIONS
		1385
		1386	Functions and methods that extend core crossfire objects.
		1387
		1388	=cut
		1389
		1390	package cf::player;
		1391
		1392	use Coro::AIO;
		1393
		1394	=head3 cf::player
		1395
		1396	=over 4
		1397
		1398	=item cf::player::num_playing
		1399
		1400	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1401
		1402	=cut
		1403
		1404	sub num_playing {
		1405	scalar grep
		1406	$_->ob->map
		1407	&& !$_->hidden
		1408	&& !$_->ob->flag (cf::FLAG_WIZ),
		1409	cf::player::list
		1410	}
		1411
		1412	=item cf::player::find $login
		1413
		1414	Returns the given player object, loading it if necessary (might block).
		1415
		1416	=cut
		1417
		1418	sub playerdir($) {
		1419	"$PLAYERDIR/"
		1420	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1421	}
		1422
		1423	sub path($) {
		1424	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1425
		1426	(playerdir $login) . "/playerdata"
		1427	}
		1428
		1429	sub find_active($) {
		1430	$cf::PLAYER{$_[0]}
		1431	and $cf::PLAYER{$_[0]}->active
		1432	and $cf::PLAYER{$_[0]}
		1433	}
		1434
		1435	sub exists($) {
		1436	my ($login) = @_;
		1437
		1438	$cf::PLAYER{$login}
		1439	or cf::sync_job { !aio_stat path $login }
		1440	}
		1441
		1442	sub find($) {
		1443	return $cf::PLAYER{$_[0]} || do {
		1444	my $login = $_[0];
		1445
		1446	my $guard = cf::lock_acquire "user_find:$login";
		1447
		1448	$cf::PLAYER{$_[0]} || do {
		1449	# rename old playerfiles to new ones
		1450	#TODO: remove when no longer required
		1451	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1452	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1453	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1454	aio_unlink +(playerdir $login) . "/$login.pl";
		1455
		1456	my $f = new_from_file cf::object::thawer path $login
		1457	or return;
		1458
		1459	my $pl = cf::player::load_pl $f
		1460	or return;
		1461
		1462	local $cf::PLAYER_LOADING{$login} = $pl;
		1463	$f->resolve_delayed_derefs;
		1464	$cf::PLAYER{$login} = $pl
		1465	}
		1466	}
		1467	}
		1468
		1469	sub save($) {
		1470	my ($pl) = @_;
		1471
		1472	return if $pl->{deny_save};
		1473
		1474	my $path = path $pl;
		1475	my $guard = cf::lock_acquire "user_save:$path";
		1476
		1477	return if $pl->{deny_save};
		1478
		1479	aio_mkdir playerdir $pl, 0770;
		1480	$pl->{last_save} = $cf::RUNTIME;
		1481
		1482	cf::get_slot 0.01;
		1483
		1484	$pl->save_pl ($path);
		1485	cf::cede_to_tick;
		1486	}
		1487
		1488	sub new($) {
		1489	my ($login) = @_;
		1490
		1491	my $self = create;
		1492
		1493	$self->ob->name ($login);
		1494	$self->{deny_save} = 1;
		1495
		1496	$cf::PLAYER{$login} = $self;
		1497
		1498	$self
		1499	}
		1500
		1501	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1502
		1503	=cut
		1504
		1505	sub send_msg {
		1506	my $ns = shift->ns
		1507	or return;
		1508	$ns->send_msg (@_);
		1509	}
		1510
		1511	=item $pl->quit_character
		1512
		1513	Nukes the player without looking back. If logged in, the connection will
		1514	be destroyed. May block for a long time.
		1515
		1516	=cut
		1517
		1518	sub quit_character {
		1519	my ($pl) = @_;
		1520
		1521	my $name = $pl->ob->name;
		1522
		1523	$pl->{deny_save} = 1;
		1524	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1525
		1526	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1527	$pl->deactivate;
		1528	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1529	$pl->ns->destroy if $pl->ns;
		1530
		1531	my $path = playerdir $pl;
		1532	my $temp = "$path~$cf::RUNTIME~deleting~";
		1533	aio_rename $path, $temp;
		1534	delete $cf::PLAYER{$pl->ob->name};
		1535	$pl->destroy;
		1536
		1537	my $prefix = qr<^~\Q$name\E/>;
		1538
		1539	# nuke player maps
		1540	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1541
		1542	IO::AIO::aio_rmtree $temp;
		1543	}
		1544
		1545	=item $pl->kick
		1546
		1547	Kicks a player out of the game. This destroys the connection.
		1548
		1549	=cut
		1550
		1551	sub kick {
		1552	my ($pl, $kicker) = @_;
		1553
		1554	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1555	$pl->killer ("kicked");
		1556	$pl->ns->destroy;
		1557	}
		1558
		1559	=item cf::player::list_logins
		1560
		1561	Returns am arrayref of all valid playernames in the system, can take a
		1562	while and may block, so not sync_job-capable, ever.
		1563
		1564	=cut
		1565
		1566	sub list_logins {
		1567	my $dirs = aio_readdir $PLAYERDIR
		1568	or return [];
		1569
		1570	my @logins;
		1571
		1572	for my $login (@$dirs) {
		1573	my $path = path $login;
		1574
		1575	# a .pst is a dead give-away for a valid player
		1576	# if no pst file found, open and chekc for blocked users
		1577	if (aio_stat "$path.pst") {
		1578	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1579	aio_read $fh, 0, 512, my $buf, 0 or next;
		1580	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1581	}
		1582
		1583	utf8::decode $login;
		1584	push @logins, $login;
		1585	}
		1586
		1587	\@logins
		1588	}
		1589
		1590	=item $player->maps
		1591
		1592	Returns an arrayref of map paths that are private for this
		1593	player. May block.
		1594
		1595	=cut
		1596
		1597	sub maps($) {
		1598	my ($pl) = @_;
		1599
		1600	$pl = ref $pl ? $pl->ob->name : $pl;
		1601
		1602	my $files = aio_readdir playerdir $pl
		1603	or return;
		1604
		1605	my @paths;
		1606
		1607	for (@$files) {
		1608	utf8::decode $_;
		1609	next if /\.(?:pl|pst)$/;
		1610	next unless /^$PATH_SEP/o;
		1611
		1612	push @paths, cf::map::normalise "~$pl/$_";
		1613	}
		1614
		1615	\@paths
		1616	}
		1617
		1618	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1619
		1620	Expand crossfire pod fragments into protocol xml.
		1621
		1622	=cut
		1623
		1624	use re 'eval';
		1625
		1626	my $group;
		1627	my $interior; $interior = qr{
		1628	# match a pod interior sequence sans C<< >>
		1629	(?:
		1630	\ (.*?)\ (?{ $group = $^N })
		1631	| < (??{$interior}) >
		1632	)
		1633	}x;
		1634
		1635	sub expand_cfpod {
		1636	my ($self, $pod) = @_;
		1637
		1638	my $xml;
		1639
		1640	while () {
		1641	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1642	$group = $1;
		1643
		1644	$group =~ s/&/&amp;/g;
		1645	$group =~ s/</&lt;/g;
		1646
		1647	$xml .= $group;
		1648	} elsif ($pod =~ m%\G
		1649	([BCGHITU])
		1650	<
		1651	(?:
		1652	([^<>]*) (?{ $group = $^N })
		1653	| < $interior >
		1654	)
		1655	>
		1656	%gcsx
		1657	) {
		1658	my ($code, $data) = ($1, $group);
		1659
		1660	if ($code eq "B") {
		1661	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1662	} elsif ($code eq "I") {
		1663	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1664	} elsif ($code eq "U") {
		1665	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1666	} elsif ($code eq "C") {
		1667	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1668	} elsif ($code eq "T") {
		1669	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1670	} elsif ($code eq "G") {
		1671	my ($male, $female) = split /\|/, $data;
		1672	$data = $self->gender ? $female : $male;
		1673	$xml .= expand_cfpod ($self, $data);
		1674	} elsif ($code eq "H") {
		1675	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1676	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1677	"")
		1678	[$self->{hintmode}];
		1679	} else {
		1680	$xml .= "error processing '$code($data)' directive";
		1681	}
		1682	} else {
		1683	if ($pod =~ /\G(.+)/) {
		1684	warn "parse error while expanding $pod (at $1)";
		1685	}
		1686	last;
		1687	}
		1688	}
		1689
		1690	for ($xml) {
		1691	# create single paragraphs (very hackish)
		1692	s/(?<=\S)\n(?=\w)/ /g;
		1693
		1694	# compress some whitespace
		1695	s/\s+\n/\n/g; # ws line-ends
		1696	s/\n\n+/\n/g; # double lines
		1697	s/^\n+//; # beginning lines
		1698	s/\n+$//; # ending lines
		1699	}
		1700
		1701	$xml
		1702	}
		1703
		1704	no re 'eval';
		1705
		1706	sub hintmode {
		1707	$_[0]{hintmode} = $_[1] if @_ > 1;
		1708	$_[0]{hintmode}
		1709	}
		1710
		1711	=item $player->ext_reply ($msgid, @msg)
		1712
		1713	Sends an ext reply to the player.
		1714
		1715	=cut
		1716
		1717	sub ext_reply($$@) {
		1718	my ($self, $id, @msg) = @_;
		1719
		1720	$self->ns->ext_reply ($id, @msg)
		1721	}
		1722
		1723	=item $player->ext_msg ($type, @msg)
		1724
		1725	Sends an ext event to the client.
		1726
		1727	=cut
		1728
		1729	sub ext_msg($$@) {
		1730	my ($self, $type, @msg) = @_;
		1731
		1732	$self->ns->ext_msg ($type, @msg);
		1733	}
		1734
		1735	=head3 cf::region
		1736
		1737	=over 4
		1738
		1739	=cut
		1740
		1741	package cf::region;
		1742
		1743	=item cf::region::find_by_path $path
		1744
		1745	Tries to decuce the likely region for a map knowing only its path.
		1746
		1747	=cut
		1748
		1749	sub find_by_path($) {
958	my ($path) = @_;	1750	my ($path) = @_;
959		1751
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1752	my ($match, $specificity);
961	my $base = $1;
962	my $pkg = $1;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965		1753
966	warn "loading '$path' into '$pkg'\n";	1754	for my $region (list) {
967		1755	if ($region->{match} && $path =~ $region->{match}) {
968	open my $fh, "<:utf8", $path	1756	($match, $specificity) = ($region, $region->specificity)
969	or die "$path: $!";	1757	if $region->specificity > $specificity;
970		1758	}
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }	1759	}
1000		1760
1001	# remove commands	1761	$match
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}
1010	}
1011
1012	# remove extcmds
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1014	delete $EXTCMD{$name};
1015	}
1016
1017	if (my $cb = $pkg->can ("unload")) {
1018	eval {
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023
1024	Symbol::delete_package $pkg;
1025	}
1026
1027	sub load_extensions {
1028	for my $ext (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;
1030	eval {
1031	load_extension $ext;
1032	1
1033	} or warn "$ext not loaded: $@";
1034	}
1035	}
1036
1037	#############################################################################
1038	# load/save/clean perl data associated with a map
1039
1040	*cf::mapsupport::on_clean = sub {
1041	my ($map) = @_;
1042
1043	my $path = $map->tmpname;
1044	defined $path or return;
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}
1057
1058	# TODO: compatibility cruft, remove when no longer needed
1059	cf::player->attach (
1060	on_load => sub {
1061	my ($pl, $path) = @_;
1062
1063	for my $o (all_objects $pl->ob) {
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1065	$o->set_ob_key_value ("_perl_data");
1066
1067	%$o = %{ Storable::thaw pack "H*", $value };
1068	}
1069	}
1070	},
1071	);
1072
1073	#############################################################################
1074
1075	=head2 CORE EXTENSIONS
1076
1077	Functions and methods that extend core crossfire objects.
1078
1079	=head3 cf::player
1080
1081	=over 4
1082
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut
1088
1089	sub cf::player::exists($) {
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
1095
1096	Sends an ext reply to the player.
1097
1098	=cut
1099
1100	sub cf::player::ext_reply($$$%) {
1101	my ($self, $id, %msg) = @_;
1102
1103	$msg{msgid} = $id;
1104
1105	$self->send ("ext " . to_json \%msg);
1106	}	1762	}
1107		1763
1108	=back	1764	=back
1109
1110		1765
1111	=head3 cf::map	1766	=head3 cf::map
1112		1767
1113	=over 4	1768	=over 4
1114		1769
…		…
1117	package cf::map;	1772	package cf::map;
1118		1773
1119	use Fcntl;	1774	use Fcntl;
1120	use Coro::AIO;	1775	use Coro::AIO;
1121		1776
		1777	use overload
		1778	'""' => \&as_string,
		1779	fallback => 1;
		1780
1122	our $MAX_RESET = 3600;	1781	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1782	our $DEFAULT_RESET = 3000;
1124		1783
1125	sub generate_random_map {	1784	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1785	my ($self, $rmp) = @_;
		1786
		1787	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1127		1788
1128	# mit "rum" bekleckern, nicht	1789	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1790	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1791	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1792	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1793	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1794	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1795	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1796	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1797	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1798	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1799	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1800	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region})	1801	(cf::region::find $rmp->{region}), $rmp->{custom}
		1802	)
		1803	}
		1804
		1805	=item cf::map->register ($regex, $prio)
		1806
		1807	Register a handler for the map path matching the given regex at the
		1808	givne priority (higher is better, built-in handlers have priority 0, the
		1809	default).
		1810
		1811	=cut
		1812
		1813	sub register {
		1814	my (undef, $regex, $prio) = @_;
		1815	my $pkg = caller;
		1816
		1817	no strict;
		1818	push @{"$pkg\::ISA"}, __PACKAGE__;
		1819
		1820	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1821	}
		1822
		1823	# also paths starting with '/'
		1824	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1825
		1826	sub thawer_merge {
		1827	my ($self, $merge) = @_;
		1828
		1829	# we have to keep some variables in memory intact
		1830	local $self->{path};
		1831	local $self->{load_path};
		1832
		1833	$self->SUPER::thawer_merge ($merge);
		1834	}
		1835
		1836	sub normalise {
		1837	my ($path, $base) = @_;
		1838
		1839	$path = "$path"; # make sure its a string
		1840
		1841	$path =~ s/\.map$//;
		1842
		1843	# map plan:
		1844	#
		1845	# /! non-realised random map exit (special hack!)
		1846	# {... are special paths that are not being touched
		1847	# ?xxx/... are special absolute paths
		1848	# ?random/... random maps
		1849	# /... normal maps
		1850	# ~user/... per-player map of a specific user
		1851
		1852	$path =~ s/$PATH_SEP/\//go;
		1853
		1854	# treat it as relative path if it starts with
		1855	# something that looks reasonable
		1856	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1857	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1858
		1859	$base =~ s{[^/]+/?$}{};
		1860	$path = "$base/$path";
		1861	}
		1862
		1863	for ($path) {
		1864	redo if s{//}{/};
		1865	redo if s{/\.?/}{/};
		1866	redo if s{/[^/]+/\.\./}{/};
		1867	}
		1868
		1869	$path
		1870	}
		1871
		1872	sub new_from_path {
		1873	my (undef, $path, $base) = @_;
		1874
		1875	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1876
		1877	$path = normalise $path, $base;
		1878
		1879	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1880	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1881	my $self = bless cf::map::new, $pkg;
		1882	$self->{path} = $path; $self->path ($path);
		1883	$self->init; # pass $1 etc.
		1884	return $self;
		1885	}
		1886	}
		1887
		1888	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1889	()
		1890	}
		1891
		1892	sub init {
		1893	my ($self) = @_;
		1894
		1895	$self
		1896	}
		1897
		1898	sub as_string {
		1899	my ($self) = @_;
		1900
		1901	"$self->{path}"
		1902	}
		1903
		1904	# the displayed name, this is a one way mapping
		1905	sub visible_name {
		1906	&as_string
		1907	}
		1908
		1909	# the original (read-only) location
		1910	sub load_path {
		1911	my ($self) = @_;
		1912
		1913	"$MAPDIR/$self->{path}.map"
		1914	}
		1915
		1916	# the temporary/swap location
		1917	sub save_path {
		1918	my ($self) = @_;
		1919
		1920	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1921	"$TMPDIR/$path.map"
		1922	}
		1923
		1924	# the unique path, undef == no special unique path
		1925	sub uniq_path {
		1926	my ($self) = @_;
		1927
		1928	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1929	"$UNIQUEDIR/$path"
1142	}	1930	}
1143		1931
1144	# and all this just because we cannot iterate over	1932	# and all this just because we cannot iterate over
1145	# all maps in C++...	1933	# all maps in C++...
1146	sub change_all_map_light {	1934	sub change_all_map_light {
…		…
1148		1936
1149	$_->change_map_light ($change)	1937	$_->change_map_light ($change)
1150	for grep $_->outdoor, values %cf::MAP;	1938	for grep $_->outdoor, values %cf::MAP;
1151	}	1939	}
1152		1940
		1941	sub decay_objects {
		1942	my ($self) = @_;
		1943
		1944	return if $self->{deny_reset};
		1945
		1946	$self->do_decay_objects;
		1947	}
		1948
		1949	sub unlink_save {
		1950	my ($self) = @_;
		1951
		1952	utf8::encode (my $save = $self->save_path);
		1953	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1954	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1955	}
		1956
1153	sub try_load_header($) {	1957	sub load_header_from($) {
1154	my ($path) = @_;	1958	my ($self, $path) = @_;
1155		1959
1156	utf8::encode $path;	1960	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1961	my $f = new_from_file cf::object::thawer $path
1158	or return;	1962	or return;
1159		1963
1160	my $map = cf::map::new	1964	$self->_load_header ($f)
1161	or return;	1965	or return;
1162		1966
1163	# for better error messages only, will be overwritten	1967	local $MAP_LOADING{$self->{path}} = $self;
1164	$map->path ($path);	1968	$f->resolve_delayed_derefs;
1165		1969
1166	$map->load_header ($path)	1970	$self->{load_path} = $path;
		1971
		1972	1
		1973	}
		1974
		1975	sub load_header_orig {
		1976	my ($self) = @_;
		1977
		1978	$self->load_header_from ($self->load_path)
		1979	}
		1980
		1981	sub load_header_temp {
		1982	my ($self) = @_;
		1983
		1984	$self->load_header_from ($self->save_path)
		1985	}
		1986
		1987	sub prepare_temp {
		1988	my ($self) = @_;
		1989
		1990	$self->last_access ((delete $self->{last_access})
		1991	|| $cf::RUNTIME); #d#
		1992	# safety
		1993	$self->{instantiate_time} = $cf::RUNTIME
		1994	if $self->{instantiate_time} > $cf::RUNTIME;
		1995	}
		1996
		1997	sub prepare_orig {
		1998	my ($self) = @_;
		1999
		2000	$self->{load_original} = 1;
		2001	$self->{instantiate_time} = $cf::RUNTIME;
		2002	$self->last_access ($cf::RUNTIME);
		2003	$self->instantiate;
		2004	}
		2005
		2006	sub load_header {
		2007	my ($self) = @_;
		2008
		2009	if ($self->load_header_temp) {
		2010	$self->prepare_temp;
		2011	} else {
		2012	$self->load_header_orig
1167	or return;	2013	or return;
		2014	$self->prepare_orig;
		2015	}
1168		2016
1169	$map->{load_path} = $path;	2017	$self->{deny_reset} = 1
		2018	if $self->no_reset;
1170		2019
1171	$map	2020	$self->default_region (cf::region::find_by_path $self->{path})
		2021	unless $self->default_region;
		2022
		2023	1
1172	}	2024	}
1173		2025
1174	sub find;	2026	sub find;
1175	sub find {	2027	sub find {
1176	my ($path, $origin) = @_;	2028	my ($path, $origin) = @_;
1177		2029
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	2030	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		2031
		2032	cf::lock_wait "map_data:$path";#d#remove
1183	cf::lock_wait "map_find:$key";	2033	cf::lock_wait "map_find:$path";
1184		2034
1185	$cf::MAP{$key} || do {	2035	$cf::MAP{$path} || do {
		2036	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1186	my $guard = cf::lock_acquire "map_find:$key";	2037	my $guard2 = cf::lock_acquire "map_find:$path";
1187		2038
1188	# do it the slow way	2039	my $map = new_from_path cf::map $path
1189	my $map = try_load_header $path->save_path;
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	2040	or return;
1207		2041
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	2042	$map->{last_save} = $cf::RUNTIME;
1220		2043
1221	Coro::cede;	2044	$map->load_header
		2045	or return;
1222		2046
1223	if ($map->should_reset) {	2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2048	# doing this can freeze the server in a sync job, obviously
		2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard2;
		2051	undef $guard1;
1224	$map->reset;	2052	$map->reset;
1225	undef $guard;
1226	$map = find $path	2053	return find $path;
1227	or return;
1228	}	2054	}
1229		2055
1230	$cf::MAP{$key} = $map	2056	$cf::MAP{$path} = $map
1231	}	2057	}
1232	}	2058	}
		2059
		2060	sub pre_load { }
		2061	sub post_load { }
1233		2062
1234	sub load {	2063	sub load {
1235	my ($self) = @_;	2064	my ($self) = @_;
1236		2065
		2066	local $self->{deny_reset} = 1; # loading can take a long time
		2067
1237	my $path = $self->{path};	2068	my $path = $self->{path};
		2069
		2070	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2071	my $guard = cf::lock_acquire "map_data:$path";
1239		2072
		2073	return unless $self->valid;
1240	return if $self->in_memory != cf::MAP_SWAPPED;	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
1241		2075
1242	$self->in_memory (cf::MAP_LOADING);	2076	$self->in_memory (cf::MAP_LOADING);
1243		2077
1244	$self->alloc;	2078	$self->alloc;
1245	$self->load_objects ($self->{load_path}, 1)	2079
		2080	$self->pre_load;
		2081	cf::cede_to_tick;
		2082
		2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
		2085	$self->_load_objects ($f)
1246	or return;	2086	or return;
1247		2087
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2088	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	2089	if delete $self->{load_original};
1250		2090
1251	if (my $uniq = $path->uniq_path) {	2091	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	2092	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	2095	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
1256	}	2099	}
1257	}	2100	}
1258		2101
1259	Coro::cede;	2102	$f->resolve_delayed_derefs;
1260		2103
		2104	cf::cede_to_tick;
1261	# now do the right thing for maps	2105	# now do the right thing for maps
1262	$self->link_multipart_objects;	2106	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	2107	$self->difficulty ($self->estimate_difficulty)
1273	unless $self->difficulty;	2108	unless $self->difficulty;
		2109	cf::cede_to_tick;
		2110
		2111	unless ($self->{deny_activate}) {
		2112	$self->decay_objects;
		2113	$self->fix_auto_apply;
		2114	$self->update_buttons;
		2115	cf::cede_to_tick;
		2116	$self->set_darkness_map;
		2117	cf::cede_to_tick;
1274	$self->activate;	2118	$self->activate;
1275	}	2119	}
1276		2120
1277	Coro::cede;	2121	$self->{last_save} = $cf::RUNTIME;
		2122	$self->last_access ($cf::RUNTIME);
1278		2123
1279	$self->in_memory (cf::MAP_IN_MEMORY);	2124	$self->in_memory (cf::MAP_ACTIVE);
		2125	}
		2126
		2127	$self->post_load;
		2128	}
		2129
		2130	sub customise_for {
		2131	my ($self, $ob) = @_;
		2132
		2133	return find "~" . $ob->name . "/" . $self->{path}
		2134	if $self->per_player;
		2135
		2136	# return find "?party/" . $ob->name . "/" . $self->{path}
		2137	# if $self->per_party;
		2138
		2139	$self
		2140	}
		2141
		2142	# find and load all maps in the 3x3 area around a map
		2143	sub load_neighbours {
		2144	my ($map) = @_;
		2145
		2146	my @neigh; # diagonal neighbours
		2147
		2148	for (0 .. 3) {
		2149	my $neigh = $map->tile_path ($_)
		2150	or next;
		2151	$neigh = find $neigh, $map
		2152	or next;
		2153	$neigh->load;
		2154
		2155	push @neigh,
		2156	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2157	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2158	}
		2159
		2160	for (grep defined $_->[0], @neigh) {
		2161	my ($path, $origin) = @$_;
		2162	my $neigh = find $path, $origin
		2163	or next;
		2164	$neigh->load;
		2165	}
1280	}	2166	}
1281		2167
1282	sub find_sync {	2168	sub find_sync {
1283	my ($path, $origin) = @_;	2169	my ($path, $origin) = @_;
1284		2170
1285	cf::sync_job { cf::map::find $path, $origin }	2171	cf::sync_job { find $path, $origin }
1286	}	2172	}
1287		2173
1288	sub do_load_sync {	2174	sub do_load_sync {
1289	my ($map) = @_;	2175	my ($map) = @_;
1290		2176
		2177	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2178	if $Coro::current == $Coro::main;
		2179
1291	cf::sync_job { $map->load };	2180	cf::sync_job { $map->load };
		2181	}
		2182
		2183	our %MAP_PREFETCH;
		2184	our $MAP_PREFETCHER = undef;
		2185
		2186	sub find_async {
		2187	my ($path, $origin, $load) = @_;
		2188
		2189	$path = normalise $path, $origin && $origin->{path};
		2190
		2191	if (my $map = $cf::MAP{$path}) {
		2192	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2193	}
		2194
		2195	$MAP_PREFETCH{$path} |= $load;
		2196
		2197	$MAP_PREFETCHER ||= cf::async {
		2198	$Coro::current->{desc} = "map prefetcher";
		2199
		2200	while (%MAP_PREFETCH) {
		2201	while (my ($k, $v) = each %MAP_PREFETCH) {
		2202	if (my $map = find $k) {
		2203	$map->load if $v;
		2204	}
		2205
		2206	delete $MAP_PREFETCH{$k};
		2207	}
		2208	}
		2209	undef $MAP_PREFETCHER;
		2210	};
		2211	$MAP_PREFETCHER->prio (6);
		2212
		2213	()
1292	}	2214	}
1293		2215
1294	sub save {	2216	sub save {
1295	my ($self) = @_;	2217	my ($self) = @_;
1296		2218
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	2219	my $lock = cf::lock_acquire "map_data:$self->{path}";
1298		2220
1299	$self->{last_save} = $cf::RUNTIME;	2221	$self->{last_save} = $cf::RUNTIME;
1300		2222
1301	return unless $self->dirty;	2223	return unless $self->dirty;
1302		2224
1303	my $save = $self->{path}->save_path; utf8::encode $save;	2225	my $save = $self->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2226	my $uniq = $self->uniq_path; utf8::encode $uniq;
1305		2227
1306	$self->{load_path} = $save;	2228	$self->{load_path} = $save;
1307		2229
1308	return if $self->{deny_save};	2230	return if $self->{deny_save};
1309		2231
1310	local $self->{last_access} = $self->last_access;#d#	2232	local $self->{last_access} = $self->last_access;#d#
1311		2233
		2234	cf::async {
		2235	$Coro::current->{desc} = "map player save";
		2236	$_->contr->save for $self->players;
		2237	};
		2238
		2239	cf::get_slot 0.02;
		2240
1312	if ($uniq) {	2241	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2242	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);	2243	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {	2244	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}	2246	}
1318	}	2247	}
1319		2248
1320	sub swap_out {	2249	sub swap_out {
1321	my ($self) = @_;	2250	my ($self) = @_;
1322		2251
1323	# save first because save cedes	2252	# save first because save cedes
1324	$self->save;	2253	$self->save;
1325		2254
1326	my $lock = cf::lock_acquire "map_data:" . $self->path;	2255	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327		2256
1328	return if $self->players;	2257	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	2258	return if $self->in_memory != cf::MAP_ACTIVE;
1330	return if $self->{deny_save};	2259	return if $self->{deny_save};
1331		2260
		2261	$self->in_memory (cf::MAP_SWAPPED);
		2262
		2263	$self->deactivate;
		2264	$_->clear_links_to ($self) for values %cf::MAP;
1332	$self->clear;	2265	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2266	}
1335		2267
1336	sub reset_at {	2268	sub reset_at {
1337	my ($self) = @_;	2269	my ($self) = @_;
1338		2270
1339	# TODO: safety, remove and allow resettable per-player maps	2271	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2272	return 1e99 if $self->{deny_reset};
1342		2273
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2274	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2275	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2276
…		…
1350	my ($self) = @_;	2281	my ($self) = @_;
1351		2282
1352	$self->reset_at <= $cf::RUNTIME	2283	$self->reset_at <= $cf::RUNTIME
1353	}	2284	}
1354		2285
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2286	sub reset {
1377	my ($self) = @_;	2287	my ($self) = @_;
1378		2288
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	2289	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		2290
1381	return if $self->players;	2291	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2292
1384	warn "resetting map ", $self->path;#d#	2293	warn "resetting map ", $self->path;
		2294
		2295	$self->in_memory (cf::MAP_SWAPPED);
		2296
		2297	# need to save uniques path
		2298	unless ($self->{deny_save}) {
		2299	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2300
		2301	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2302	if $uniq;
		2303	}
1385		2304
1386	delete $cf::MAP{$self->path};	2305	delete $cf::MAP{$self->path};
1387		2306
		2307	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2308	$_->clear_links_to ($self) for values %cf::MAP;
		2309	$self->clear;
1389		2310
1390	$self->unlink_save;	2311	$self->unlink_save;
1391	$self->destroy;	2312	$self->destroy;
1392	}	2313	}
1393		2314
1394	my $nuke_counter = "aaaa";	2315	my $nuke_counter = "aaaa";
1395		2316
1396	sub nuke {	2317	sub nuke {
1397	my ($self) = @_;	2318	my ($self) = @_;
1398		2319
		2320	{
		2321	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2322
		2323	delete $cf::MAP{$self->path};
		2324
		2325	$self->unlink_save;
		2326
		2327	bless $self, "cf::map";
		2328	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2329	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2330	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2331	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2332
		2333	$cf::MAP{$self->path} = $self;
		2334	}
		2335
1402	$self->reset; # polite request, might not happen	2336	$self->reset; # polite request, might not happen
1403	}	2337	}
1404		2338
1405	sub customise_for {	2339	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2340
1408	if ($map->per_player) {	2341	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2342	maps. May block.
		2343
		2344	=cut
		2345
		2346	sub tmp_maps() {
1410	}	2347	[
1411		2348	map {
1412	$map	2349	utf8::decode $_;
		2350	/\.map$/
		2351	? normalise $_
		2352	: ()
		2353	} @{ aio_readdir $TMPDIR or [] }
		2354	]
1413	}	2355	}
1414		2356
1415	sub emergency_save {	2357	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2358
1418	warn "enter emergency map save\n";	2359	Returns an arrayref with all map paths of currently instantiated and saved
		2360	random maps. May block.
1419		2361
1420	cf::sync_job {	2362	=cut
1421	warn "begin emergency map save\n";	2363
1422	$_->save for values %cf::MAP;	2364	sub random_maps() {
		2365	[
		2366	map {
		2367	utf8::decode $_;
		2368	/\.map$/
		2369	? normalise "?random/$_"
		2370	: ()
		2371	} @{ aio_readdir $RANDOMDIR or [] }
		2372	]
		2373	}
		2374
		2375	=item cf::map::unique_maps
		2376
		2377	Returns an arrayref of paths of all shared maps that have
		2378	instantiated unique items. May block.
		2379
		2380	=cut
		2381
		2382	sub unique_maps() {
		2383	[
		2384	map {
		2385	utf8::decode $_;
		2386	s/\.map$//; # TODO future compatibility hack
		2387	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2388	? ()
		2389	: normalise $_
		2390	} @{ aio_readdir $UNIQUEDIR or [] }
		2391	]
		2392	}
		2393
		2394	=back
		2395
		2396	=head3 cf::object
		2397
		2398	=cut
		2399
		2400	package cf::object;
		2401
		2402	=over 4
		2403
		2404	=item $ob->inv_recursive
		2405
		2406	Returns the inventory of the object I<and> their inventories, recursively,
		2407	but I<not> the object itself.
		2408
		2409	=cut
		2410
		2411	sub inv_recursive_;
		2412	sub inv_recursive_ {
		2413	map { $_, inv_recursive_ $_->inv } @_
		2414	}
		2415
		2416	sub inv_recursive {
		2417	inv_recursive_ inv $_[0]
		2418	}
		2419
		2420	=item $ref = $ob->ref
		2421
		2422	Creates and returns a persistent reference to an object that can be stored as a string.
		2423
		2424	=item $ob = cf::object::deref ($refstring)
		2425
		2426	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2427	even if the object actually exists. May block.
		2428
		2429	=cut
		2430
		2431	sub deref {
		2432	my ($ref) = @_;
		2433
		2434	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2435	my ($uuid, $name) = ($1, $2);
		2436	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2437	or return;
		2438	$pl->ob->uuid eq $uuid
		2439	or return;
		2440
		2441	$pl->ob
		2442	} else {
		2443	warn "$ref: cannot resolve object reference\n";
		2444	undef
1423	};	2445	}
1424
1425	warn "end emergency map save\n";
1426	}	2446	}
1427		2447
1428	package cf;	2448	package cf;
1429		2449
1430	=back	2450	=back
1431
1432		2451
1433	=head3 cf::object::player	2452	=head3 cf::object::player
1434		2453
1435	=over 4	2454	=over 4
1436		2455
…		…
1439	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2458	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1440	can be C<undef>. Does the right thing when the player is currently in a	2459	can be C<undef>. Does the right thing when the player is currently in a
1441	dialogue with the given NPC character.	2460	dialogue with the given NPC character.
1442		2461
1443	=cut	2462	=cut
		2463
		2464	our $SAY_CHANNEL = {
		2465	id => "say",
		2466	title => "Map",
		2467	reply => "say ",
		2468	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2469	};
		2470
		2471	our $CHAT_CHANNEL = {
		2472	id => "chat",
		2473	title => "Chat",
		2474	reply => "chat ",
		2475	tooltip => "Player chat and shouts, global to the server.",
		2476	};
1444		2477
1445	# rough implementation of a future "reply" method that works	2478	# rough implementation of a future "reply" method that works
1446	# with dialog boxes.	2479	# with dialog boxes.
1447	#TODO: the first argument must go, split into a $npc->reply_to ( method	2480	#TODO: the first argument must go, split into a $npc->reply_to ( method
1448	sub cf::object::player::reply($$$;$) {	2481	sub cf::object::player::reply($$$;$) {
…		…
1450		2483
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2484	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2485
1453	if ($self->{record_replies}) {	2486	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2487	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2488
1455	} else {	2489	} else {
		2490	my $pl = $self->contr;
		2491
		2492	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2493	my $dialog = $pl->{npc_dialog};
		2494	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2495
		2496	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2497	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2498	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2499	}
1458	}	2500	}
		2501	}
		2502
		2503	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	=cut
		2506
		2507	sub cf::object::send_msg {
		2508	my $pl = shift->contr
		2509	or return;
		2510	$pl->send_msg (@_);
1459	}	2511	}
1460		2512
1461	=item $player_object->may ("access")	2513	=item $player_object->may ("access")
1462		2514
1463	Returns wether the given player is authorized to access resource "access"	2515	Returns wether the given player is authorized to access resource "access"
…		…
1476		2528
1477	=item $player_object->enter_link	2529	=item $player_object->enter_link
1478		2530
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2531	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2532
1481	The player should be reaosnably safe there for short amounts of time. You	2533	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	2534	I<MUST> call C<leave_link> as soon as possible, though.
1483		2535
		2536	Will never block.
		2537
1484	=item $player_object->leave_link ($map, $x, $y)	2538	=item $player_object->leave_link ($map, $x, $y)
1485		2539
1486	Moves the player out of the specila link map onto the given map. If the	2540	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2541	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2542	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2543	fails, to the emergency map position.
1490		2544
1491	Might block.	2545	Might block.
1492		2546
1493	=cut	2547	=cut
		2548
		2549	sub link_map {
		2550	unless ($LINK_MAP) {
		2551	$LINK_MAP = cf::map::find "{link}"
		2552	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2553	$LINK_MAP->load;
		2554	}
		2555
		2556	$LINK_MAP
		2557	}
1494		2558
1495	sub cf::object::player::enter_link {	2559	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2560	my ($self) = @_;
1497		2561
1498	$self->deactivate_recursive;	2562	$self->deactivate_recursive;
1499		2563
1500	return if $self->map == $LINK_MAP;	2564	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2565
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2566	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2567	if $self->map && $self->map->{path} ne "{link}";
1504		2568
1505	$self->enter_map ($LINK_MAP, 20, 20);	2569	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2570	}
1507		2571
1508	sub cf::object::player::leave_link {	2572	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2573	my ($self, $map, $x, $y) = @_;
		2574
		2575	return unless $self->contr->active;
1510		2576
1511	my $link_pos = delete $self->{_link_pos};	2577	my $link_pos = delete $self->{_link_pos};
1512		2578
1513	unless ($map) {	2579	unless ($map) {
1514	# restore original map position	2580	# restore original map position
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2594	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2595	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2596	if $x <=0 && $y <= 0;
1531		2597
1532	$map->load;	2598	$map->load;
		2599	$map->load_neighbours;
1533		2600
		2601	return unless $self->contr->active;
1534	$self->activate_recursive;	2602	$self->activate_recursive;
		2603
		2604	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2605	$self->enter_map ($map, $x, $y);
1536	}	2606	}
1537		2607
1538	cf::player->attach (	2608	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1539	on_logout => sub {
1540	my ($pl) = @_;
1541		2609
1542	# abort map switching before logout	2610	Moves the player to the given map-path and coordinates by first freezing
1543	if ($pl->ob->{_link_pos}) {	2611	her, loading and preparing them map, calling the provided $check callback
1544	cf::sync_job {	2612	that has to return the map if sucecssful, and then unfreezes the player on
1545	$pl->ob->leave_link	2613	the new (success) or old (failed) map position. In either case, $done will
1546	};	2614	be called at the end of this process.
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2615
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555
1556	$pl->ob->enter_link;
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570
1571	=item $player_object->goto ($path, $x, $y)
1572
1573	=cut	2616	=cut
		2617
		2618	our $GOTOGEN;
1574		2619
1575	sub cf::object::player::goto {	2620	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2621	my ($self, $path, $x, $y, $check, $done) = @_;
		2622
		2623	# do generation counting so two concurrent goto's will be executed in-order
		2624	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2625
1578	$self->enter_link;	2626	$self->enter_link;
1579		2627
1580	(async {	2628	(async {
1581	$path = new cf::path $path;	2629	$Coro::current->{desc} = "player::goto $path $x $y";
1582		2630
1583	my $map = cf::map::find $path->as_string;	2631	# *tag paths override both path and x|y
		2632	if ($path =~ /^\*(.*)$/) {
		2633	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2634	my $ob = $obs[rand @obs];
		2635
		2636	# see if we actually can go there
		2637	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2638	$ob = $obs[rand @obs];
		2639	} else {
		2640	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2641	}
		2642	# else put us there anyways for now #d#
		2643
		2644	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2645	} else {
		2646	($path, $x, $y) = (undef, undef, undef);
		2647	}
		2648	}
		2649
		2650	my $map = eval {
		2651	my $map = defined $path ? cf::map::find $path : undef;
		2652
		2653	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2654	$map = $map->customise_for ($self);
1585		2655	$map = $check->($map) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2656	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2657	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2658	}
1590		2659
		2660	$map
		2661	};
		2662
		2663	if ($@) {
		2664	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2665	LOG llevError | logBacktrace, Carp::longmess $@;
		2666	}
		2667
		2668	if ($gen == $self->{_goto_generation}) {
		2669	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2670	$self->leave_link ($map, $x, $y);
		2671	}
		2672
		2673	$done->() if $done;
1592	})->prio (1);	2674	})->prio (1);
1593	}	2675	}
1594		2676
1595	=item $player_object->enter_exit ($exit_object)	2677	=item $player_object->enter_exit ($exit_object)
1596		2678
…		…
1598		2680
1599	sub parse_random_map_params {	2681	sub parse_random_map_params {
1600	my ($spec) = @_;	2682	my ($spec) = @_;
1601		2683
1602	my $rmp = { # defaults	2684	my $rmp = { # defaults
1603	xsize => 10,	2685	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2686	ysize => (cf::rndm 15, 40),
		2687	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2688	#layout => string,
1605	};	2689	};
1606		2690
1607	for (split /\n/, $spec) {	2691	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2692	my ($k, $v) = split /\s+/, $_, 2;
1609		2693
…		…
1621	# that depends on the exit object	2705	# that depends on the exit object
1622		2706
1623	my $rmp = parse_random_map_params $exit->msg;	2707	my $rmp = parse_random_map_params $exit->msg;
1624		2708
1625	if ($exit->map) {	2709	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2710	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2711	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2712	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2713	$rmp->{origin_y} = $exit->y;
		2714
		2715	$exit->map->touch;
1630	}	2716	}
1631		2717
1632	$rmp->{random_seed} ||= $exit->random_seed;	2718	$rmp->{random_seed} ||= $exit->random_seed;
1633		2719
1634	my $data = cf::to_json $rmp;	2720	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1635	my $md5 = Digest::MD5::md5_hex $data;	2721	my $md5 = Digest::MD5::md5_hex $data;
		2722	my $meta = "$RANDOMDIR/$md5.meta";
1636		2723
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2724	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2725	aio_write $fh, 0, (length $data), $data, 0;
		2726	undef $fh;
		2727	aio_rename "$meta~", $meta;
1639		2728
		2729	my $slaying = "?random/$md5";
		2730
		2731	if ($exit->valid) {
1640	$exit->slaying ("?random/$md5");	2732	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2733	$exit->msg (undef);
		2734	}
1642	}	2735	}
1643	}	2736	}
1644		2737
1645	sub cf::object::player::enter_exit {	2738	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2739	my ($self, $exit) = @_;
…		…
1648	return unless $self->type == cf::PLAYER;	2741	return unless $self->type == cf::PLAYER;
1649		2742
1650	$self->enter_link;	2743	$self->enter_link;
1651		2744
1652	(async {	2745	(async {
1653	$self->deactivate_recursive; # just to be sure	2746	$Coro::current->{desc} = "enter_exit";
		2747
1654	unless (eval {	2748	unless (eval {
		2749	$self->deactivate_recursive; # just to be sure
		2750
		2751	# random map handling
		2752	{
		2753	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2754
1655	prepare_random_map $exit	2755	prepare_random_map $exit
1656	if $exit->slaying eq "/!";	2756	if $exit->slaying eq "/!";
		2757	}
1657		2758
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2759	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2760	my $x = $exit->stats->hp;
		2761	my $y = $exit->stats->sp;
1660		2762
		2763	$self->goto ($map, $x, $y);
		2764
		2765	# if exit is damned, update players death & WoR home-position
		2766	$self->contr->savebed ($map, $x, $y)
		2767	if $exit->flag (cf::FLAG_DAMNED);
		2768
1661	1;	2769	1
1662	}) {	2770	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2771	$self->message ("Something went wrong deep within the crossfire server. "
1664	. "I'll try to bring you back to the map you were before. "	2772	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	2773	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2774	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2775
1668	warn "ERROR in enter_exit: $@";	2776	warn "ERROR in enter_exit: $@";
1669	$self->leave_link;	2777	$self->leave_link;
1670	}	2778	}
1671	})->prio (1);	2779	})->prio (1);
…		…
1684		2792
1685	sub cf::client::send_drawinfo {	2793	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2794	my ($self, $text, $flags) = @_;
1687		2795
1688	utf8::encode $text;	2796	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2797	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2798	}
1691		2799
		2800	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2801
		2802	Send a drawinfo or msg packet to the client, formatting the msg for the
		2803	client if neccessary. C<$type> should be a string identifying the type of
		2804	the message, with C<log> being the default. If C<$color> is negative, suppress
		2805	the message unless the client supports the msg packet.
		2806
		2807	=cut
		2808
		2809	# non-persistent channels (usually the info channel)
		2810	our %CHANNEL = (
		2811	"c/identify" => {
		2812	id => "infobox",
		2813	title => "Identify",
		2814	reply => undef,
		2815	tooltip => "Items recently identified",
		2816	},
		2817	"c/examine" => {
		2818	id => "infobox",
		2819	title => "Examine",
		2820	reply => undef,
		2821	tooltip => "Signs and other items you examined",
		2822	},
		2823	"c/book" => {
		2824	id => "infobox",
		2825	title => "Book",
		2826	reply => undef,
		2827	tooltip => "The contents of a note or book",
		2828	},
		2829	"c/lookat" => {
		2830	id => "infobox",
		2831	title => "Look",
		2832	reply => undef,
		2833	tooltip => "What you saw there",
		2834	},
		2835	"c/who" => {
		2836	id => "infobox",
		2837	title => "Players",
		2838	reply => undef,
		2839	tooltip => "Shows players who are currently online",
		2840	},
		2841	"c/body" => {
		2842	id => "infobox",
		2843	title => "Body Parts",
		2844	reply => undef,
		2845	tooltip => "Shows which body parts you posess and are available",
		2846	},
		2847	"c/uptime" => {
		2848	id => "infobox",
		2849	title => "Uptime",
		2850	reply => undef,
		2851	tooltip => "How long the server has been running since last restart",
		2852	},
		2853	"c/mapinfo" => {
		2854	id => "infobox",
		2855	title => "Map Info",
		2856	reply => undef,
		2857	tooltip => "Information related to the maps",
		2858	},
		2859	"c/party" => {
		2860	id => "party",
		2861	title => "Party",
		2862	reply => "gsay ",
		2863	tooltip => "Messages and chat related to your party",
		2864	},
		2865	);
		2866
		2867	sub cf::client::send_msg {
		2868	my ($self, $channel, $msg, $color, @extra) = @_;
		2869
		2870	$msg = $self->pl->expand_cfpod ($msg);
		2871
		2872	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2873
		2874	# check predefined channels, for the benefit of C
		2875	if ($CHANNEL{$channel}) {
		2876	$channel = $CHANNEL{$channel};
		2877
		2878	$self->ext_msg (channel_info => $channel)
		2879	if $self->can_msg;
		2880
		2881	$channel = $channel->{id};
		2882
		2883	} elsif (ref $channel) {
		2884	# send meta info to client, if not yet sent
		2885	unless (exists $self->{channel}{$channel->{id}}) {
		2886	$self->{channel}{$channel->{id}} = $channel;
		2887	$self->ext_msg (channel_info => $channel)
		2888	if $self->can_msg;
		2889	}
		2890
		2891	$channel = $channel->{id};
		2892	}
		2893
		2894	return unless @extra || length $msg;
		2895
		2896	if ($self->can_msg) {
		2897	# default colour, mask it out
		2898	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2899	if $color & cf::NDI_DEF;
		2900
		2901	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2902	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2903	} else {
		2904	if ($color >= 0) {
		2905	# replace some tags by gcfclient-compatible ones
		2906	for ($msg) {
		2907	1 while
		2908	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2909	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2910	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2911	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2912	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2913	}
		2914
		2915	$color &= cf::NDI_COLOR_MASK;
		2916
		2917	utf8::encode $msg;
		2918
		2919	if (0 && $msg =~ /\[/) {
		2920	# COMMAND/INFO
		2921	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2922	} else {
		2923	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2924	$self->send_packet ("drawinfo $color $msg")
		2925	}
		2926	}
		2927	}
		2928	}
		2929
		2930	=item $client->ext_msg ($type, @msg)
		2931
		2932	Sends an ext event to the client.
		2933
		2934	=cut
		2935
		2936	sub cf::client::ext_msg($$@) {
		2937	my ($self, $type, @msg) = @_;
		2938
		2939	if ($self->extcmd == 2) {
		2940	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2941	} elsif ($self->extcmd == 1) { # TODO: remove
		2942	push @msg, msgtype => "event_$type";
		2943	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2944	}
		2945	}
		2946
		2947	=item $client->ext_reply ($msgid, @msg)
		2948
		2949	Sends an ext reply to the client.
		2950
		2951	=cut
		2952
		2953	sub cf::client::ext_reply($$@) {
		2954	my ($self, $id, @msg) = @_;
		2955
		2956	if ($self->extcmd == 2) {
		2957	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2958	} elsif ($self->extcmd == 1) {
		2959	#TODO: version 1, remove
		2960	unshift @msg, msgtype => "reply", msgid => $id;
		2961	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2962	}
		2963	}
1692		2964
1693	=item $success = $client->query ($flags, "text", \&cb)	2965	=item $success = $client->query ($flags, "text", \&cb)
1694		2966
1695	Queues a query to the client, calling the given callback with	2967	Queues a query to the client, calling the given callback with
1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2968	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2969	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1698		2970
1699	Queries can fail, so check the return code. Or don't, as queries will become	2971	Queries can fail, so check the return code. Or don't, as queries will
1700	reliable at some point in the future.	2972	become reliable at some point in the future.
1701		2973
1702	=cut	2974	=cut
1703		2975
1704	sub cf::client::query {	2976	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	2977	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	2985	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2986	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		2987
1716	$self->send_packet ($self->{query_queue}[0][0])	2988	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	2989	if @{ $self->{query_queue} } == 1;
		2990
		2991	1
1718	}	2992	}
1719		2993
1720	cf::client->attach (	2994	cf::client->attach (
		2995	on_connect => sub {
		2996	my ($ns) = @_;
		2997
		2998	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2999	},
1721	on_reply => sub {	3000	on_reply => sub {
1722	my ($ns, $msg) = @_;	3001	my ($ns, $msg) = @_;
1723		3002
1724	# this weird shuffling is so that direct followup queries	3003	# this weird shuffling is so that direct followup queries
1725	# get handled first	3004	# get handled first
1726	my $queue = delete $ns->{query_queue}	3005	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	3006	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		3007
1729	(shift @$queue)->[1]->($msg);	3008	(shift @$queue)->[1]->($msg);
		3009	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		3010
1731	push @{ $ns->{query_queue} }, @$queue;	3011	push @{ $ns->{query_queue} }, @$queue;
1732		3012
1733	if (@{ $ns->{query_queue} } == @$queue) {	3013	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	3014	if (@$queue) {
…		…
1736	} else {	3016	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3017	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	3018	}
1739	}	3019	}
1740	},	3020	},
		3021	on_exticmd => sub {
		3022	my ($ns, $buf) = @_;
		3023
		3024	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3025
		3026	if (ref $msg) {
		3027	my ($type, $reply, @payload) =
		3028	"ARRAY" eq ref $msg
		3029	? @$msg
		3030	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3031
		3032	my @reply;
		3033
		3034	if (my $cb = $EXTICMD{$type}) {
		3035	@reply = $cb->($ns, @payload);
		3036	}
		3037
		3038	$ns->ext_reply ($reply, @reply)
		3039	if $reply;
		3040
		3041	} else {
		3042	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3043	}
		3044
		3045	cf::override;
		3046	},
1741	);	3047	);
1742		3048
1743	=item $client->async (\&cb)	3049	=item $client->async (\&cb)
1744		3050
1745	Create a new coroutine, running the specified callback. The coroutine will	3051	Create a new coroutine, running the specified callback. The coroutine will
…		…
1786	our $safe = new Safe "safe";	3092	our $safe = new Safe "safe";
1787	our $safe_hole = new Safe::Hole;	3093	our $safe_hole = new Safe::Hole;
1788		3094
1789	$SIG{FPE} = 'IGNORE';	3095	$SIG{FPE} = 'IGNORE';
1790		3096
1791	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3097	$safe->permit_only (Opcode::opset qw(
		3098	:base_core :base_mem :base_orig :base_math
		3099	grepstart grepwhile mapstart mapwhile
		3100	sort time
		3101	));
1792		3102
1793	# here we export the classes and methods available to script code	3103	# here we export the classes and methods available to script code
1794		3104
1795	=pod	3105	=pod
1796		3106
1797	The following fucntions and emthods are available within a safe environment:	3107	The following functions and methods are available within a safe environment:
1798		3108
1799	cf::object contr pay_amount pay_player map	3109	cf::object
		3110	contr pay_amount pay_player map x y force_find force_add destroy
		3111	insert remove name archname title slaying race decrease split
		3112
1800	cf::object::player player	3113	cf::object::player
1801	cf::player peaceful	3114	player
1802	cf::map trigger	3115
		3116	cf::player
		3117	peaceful
		3118
		3119	cf::map
		3120	trigger
1803		3121
1804	=cut	3122	=cut
1805		3123
1806	for (	3124	for (
1807	["cf::object" => qw(contr pay_amount pay_player map)],	3125	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3126	insert remove inv nrof name archname title slaying race
		3127	decrease split destroy)],
1808	["cf::object::player" => qw(player)],	3128	["cf::object::player" => qw(player)],
1809	["cf::player" => qw(peaceful)],	3129	["cf::player" => qw(peaceful)],
1810	["cf::map" => qw(trigger)],	3130	["cf::map" => qw(trigger)],
1811	) {	3131	) {
1812	no strict 'refs';	3132	no strict 'refs';
…		…
1883	=back	3203	=back
1884		3204
1885	=cut	3205	=cut
1886		3206
1887	#############################################################################	3207	#############################################################################
		3208	# the server's init and main functions
1888		3209
1889	=head2 EXTENSION DATABASE SUPPORT	3210	sub load_facedata($) {
		3211	my ($path) = @_;
1890		3212
1891	Crossfire maintains a very simple database for extension use. It can	3213	# HACK to clear player env face cache, we need some signal framework
1892	currently store anything that can be serialised using Storable, which	3214	# for this (global event?)
1893	excludes objects.	3215	%ext::player_env::MUSIC_FACE_CACHE = ();
1894		3216
1895	The parameter C<$family> should best start with the name of the extension	3217	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1896	using it, it should be unique.
1897		3218
1898	=over 4	3219	warn "loading facedata from $path\n";
1899		3220
1900	=item $hashref = cf::db_get $family	3221	my $facedata;
		3222	0 < aio_load $path, $facedata
		3223	or die "$path: $!";
1901		3224
1902	Return a hashref for use by the extension C<$family>, which can be	3225	$facedata = Coro::Storable::thaw $facedata;
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905		3226
1906	=item $value = cf::db_get $family => $key	3227	$facedata->{version} == 2
		3228	or cf::cleanup "$path: version mismatch, cannot proceed.";
1907		3229
1908	Returns a single value from the database	3230	# patch in the exptable
1909		3231	$facedata->{resource}{"res/exp_table"} = {
1910	=item cf::db_put $family => $hashref	3232	type => FT_RSRC,
1911		3233	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1912	Stores the given family hashref into the database. Updates are delayed, if
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}
1938
1939	my $pid;
1940
1941	sub db_save() {
1942	waitpid $pid, 0 if $pid;
1943	if (0 == ($pid = fork)) {
1944	$DB->{_meta}{version} = 1;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950
1951	my $dirty;
1952
1953	sub db_sync() {
1954	db_save if $dirty;
1955	undef $dirty;
1956	}
1957
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1959	db_sync;
1960	});	3234	};
		3235	cf::cede_to_tick;
1961		3236
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}	3237	{
		3238	my $faces = $facedata->{faceinfo};
1966		3239
1967	sub db_get($;$) {	3240	while (my ($face, $info) = each %$faces) {
1968	@_ >= 2	3241	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1969	? $DB->{$_[0]}{$_[1]}
1970	: ($DB->{$_[0]} ||= { })
1971	}
1972		3242
1973	sub db_put($$;$) {	3243	cf::face::set_visibility $idx, $info->{visibility};
1974	if (@_ >= 3) {	3244	cf::face::set_magicmap $idx, $info->{magicmap};
1975	$DB->{$_[0]}{$_[1]} = $_[2];	3245	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1976	} else {	3246	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1977	$DB->{$_[0]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981		3247
1982	cf::global->attach (	3248	cf::cede_to_tick;
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	3249	}
1987	);
1988	}
1989		3250
1990	#############################################################################	3251	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	3252	next unless $info->{smooth};
1992		3253
1993	sub cfg_load {	3254	my $idx = cf::face::find $face
		3255	or next;
		3256
		3257	if (my $smooth = cf::face::find $info->{smooth}) {
		3258	cf::face::set_smooth $idx, $smooth;
		3259	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3260	} else {
		3261	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3262	}
		3263
		3264	cf::cede_to_tick;
		3265	}
		3266	}
		3267
		3268	{
		3269	my $anims = $facedata->{animinfo};
		3270
		3271	while (my ($anim, $info) = each %$anims) {
		3272	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3273	cf::cede_to_tick;
		3274	}
		3275
		3276	cf::anim::invalidate_all; # d'oh
		3277	}
		3278
		3279	{
		3280	# TODO: for gcfclient pleasure, we should give resources
		3281	# that gcfclient doesn't grok a >10000 face index.
		3282	my $res = $facedata->{resource};
		3283
		3284	while (my ($name, $info) = each %$res) {
		3285	if (defined $info->{type}) {
		3286	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3287	my $data;
		3288
		3289	if ($info->{type} & 1) {
		3290	# prepend meta info
		3291
		3292	my $meta = $enc->encode ({
		3293	name => $name,
		3294	%{ $info->{meta} || {} },
		3295	});
		3296
		3297	$data = pack "(w/a*)*", $meta, $info->{data};
		3298	} else {
		3299	$data = $info->{data};
		3300	}
		3301
		3302	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3303	cf::face::set_type $idx, $info->{type};
		3304	} else {
		3305	$RESOURCE{$name} = $info;
		3306	}
		3307
		3308	cf::cede_to_tick;
		3309	}
		3310	}
		3311
		3312	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3313
		3314	1
		3315	}
		3316
		3317	cf::global->attach (on_resource_update => sub {
		3318	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3319	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3320
		3321	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3322	my $sound = $soundconf->{compat}[$_]
		3323	or next;
		3324
		3325	my $face = cf::face::find "sound/$sound->[1]";
		3326	cf::sound::set $sound->[0] => $face;
		3327	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3328	}
		3329
		3330	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3331	my $face = cf::face::find "sound/$v";
		3332	cf::sound::set $k => $face;
		3333	}
		3334	}
		3335	});
		3336
		3337	register_exticmd fx_want => sub {
		3338	my ($ns, $want) = @_;
		3339
		3340	while (my ($k, $v) = each %$want) {
		3341	$ns->fx_want ($k, $v);
		3342	}
		3343	};
		3344
		3345	sub load_resource_file($) {
		3346	my $guard = lock_acquire "load_resource_file";
		3347
		3348	my $status = load_resource_file_ $_[0];
		3349	get_slot 0.1, 100;
		3350	cf::arch::commit_load;
		3351
		3352	$status
		3353	}
		3354
		3355	sub reload_regions {
		3356	# HACK to clear player env face cache, we need some signal framework
		3357	# for this (global event?)
		3358	%ext::player_env::MUSIC_FACE_CACHE = ();
		3359
		3360	load_resource_file "$MAPDIR/regions"
		3361	or die "unable to load regions file\n";
		3362
		3363	for (cf::region::list) {
		3364	$_->{match} = qr/$_->{match}/
		3365	if exists $_->{match};
		3366	}
		3367	}
		3368
		3369	sub reload_facedata {
		3370	load_facedata "$DATADIR/facedata"
		3371	or die "unable to load facedata\n";
		3372	}
		3373
		3374	sub reload_archetypes {
		3375	load_resource_file "$DATADIR/archetypes"
		3376	or die "unable to load archetypes\n";
		3377	}
		3378
		3379	sub reload_treasures {
		3380	load_resource_file "$DATADIR/treasures"
		3381	or die "unable to load treasurelists\n";
		3382	}
		3383
		3384	sub reload_resources {
		3385	warn "reloading resource files...\n";
		3386
		3387	reload_facedata;
		3388	reload_archetypes;
		3389	reload_regions;
		3390	reload_treasures;
		3391
		3392	warn "finished reloading resource files\n";
		3393	}
		3394
		3395	sub init {
		3396	my $guard = freeze_mainloop;
		3397
		3398	reload_resources;
		3399	}
		3400
		3401	sub reload_config {
1994	open my $fh, "<:utf8", cf::confdir . "/config"	3402	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	3403	or return;
1996		3404
1997	local $/;	3405	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	3406	*CFG = YAML::Load <$fh>;
1999		3407
2000	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3408	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2001		3409
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3410	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3411	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		3412
2005	if (exists $CFG{mlockall}) {	3413	if (exists $CFG{mlockall}) {
2006	eval {	3414	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	3415	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	3416	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	3417	};
2010	warn $@ if $@;	3418	warn $@ if $@;
2011	}	3419	}
2012	}	3420	}
2013		3421
2014	sub main {	3422	sub main {
2015	# we must not ever block the main coroutine	3423	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	3424	local $Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3425	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2018	async { Event::one_event };	3426	(async {
		3427	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3428	EV::loop EV::LOOP_ONESHOT;
		3429	})->prio (Coro::PRIO_MAX);
2019	};	3430	};
2020		3431
2021	cfg_load;	3432	{
2022	db_load;	3433	my $guard = freeze_mainloop;
		3434	reload_config;
		3435	db_init;
2023	load_extensions;	3436	load_extensions;
		3437
		3438	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3439	evthread_start IO::AIO::poll_fileno;
		3440	}
		3441
2024	Event::loop;	3442	EV::loop;
2025	}	3443	}
2026		3444
2027	#############################################################################	3445	#############################################################################
2028	# initialisation	3446	# initialisation and cleanup
2029		3447
		3448	# install some emergency cleanup handlers
		3449	BEGIN {
		3450	our %SIGWATCHER = ();
		3451	for my $signal (qw(INT HUP TERM)) {
		3452	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3453	cf::cleanup "SIG$signal";
		3454	};
		3455	}
		3456	}
		3457
		3458	sub write_runtime_sync {
		3459	my $runtime = "$LOCALDIR/runtime";
		3460
		3461	# first touch the runtime file to show we are still running:
		3462	# the fsync below can take a very very long time.
		3463
		3464	IO::AIO::aio_utime $runtime, undef, undef;
		3465
		3466	my $guard = cf::lock_acquire "write_runtime";
		3467
		3468	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3469	or return;
		3470
		3471	my $value = $cf::RUNTIME + 90 + 10;
		3472	# 10 is the runtime save interval, for a monotonic clock
		3473	# 60 allows for the watchdog to kill the server.
		3474
		3475	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3476	and return;
		3477
		3478	# always fsync - this file is important
		3479	aio_fsync $fh
		3480	and return;
		3481
		3482	# touch it again to show we are up-to-date
		3483	aio_utime $fh, undef, undef;
		3484
		3485	close $fh
		3486	or return;
		3487
		3488	aio_rename "$runtime~", $runtime
		3489	and return;
		3490
		3491	warn "runtime file written.\n";
		3492
		3493	1
		3494	}
		3495
		3496	our $uuid_lock;
		3497	our $uuid_skip;
		3498
		3499	sub write_uuid_sync($) {
		3500	$uuid_skip ||= $_[0];
		3501
		3502	return if $uuid_lock;
		3503	local $uuid_lock = 1;
		3504
		3505	my $uuid = "$LOCALDIR/uuid";
		3506
		3507	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3508	or return;
		3509
		3510	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3511	$uuid_skip = 0;
		3512
		3513	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3514	and return;
		3515
		3516	# always fsync - this file is important
		3517	aio_fsync $fh
		3518	and return;
		3519
		3520	close $fh
		3521	or return;
		3522
		3523	aio_rename "$uuid~", $uuid
		3524	and return;
		3525
		3526	warn "uuid file written ($value).\n";
		3527
		3528	1
		3529
		3530	}
		3531
		3532	sub write_uuid($$) {
		3533	my ($skip, $sync) = @_;
		3534
		3535	$sync ? write_uuid_sync $skip
		3536	: async { write_uuid_sync $skip };
		3537	}
		3538
		3539	sub emergency_save() {
		3540	my $freeze_guard = cf::freeze_mainloop;
		3541
		3542	warn "enter emergency perl save\n";
		3543
		3544	cf::sync_job {
		3545	# use a peculiar iteration method to avoid tripping on perl
		3546	# refcount bugs in for. also avoids problems with players
		3547	# and maps saved/destroyed asynchronously.
		3548	warn "begin emergency player save\n";
		3549	for my $login (keys %cf::PLAYER) {
		3550	my $pl = $cf::PLAYER{$login} or next;
		3551	$pl->valid or next;
		3552	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3553	$pl->save;
		3554	}
		3555	warn "end emergency player save\n";
		3556
		3557	warn "begin emergency map save\n";
		3558	for my $path (keys %cf::MAP) {
		3559	my $map = $cf::MAP{$path} or next;
		3560	$map->valid or next;
		3561	$map->save;
		3562	}
		3563	warn "end emergency map save\n";
		3564
		3565	warn "begin emergency database checkpoint\n";
		3566	BDB::db_env_txn_checkpoint $DB_ENV;
		3567	warn "end emergency database checkpoint\n";
		3568
		3569	warn "begin write uuid\n";
		3570	write_uuid_sync 1;
		3571	warn "end write uuid\n";
		3572	};
		3573
		3574	warn "leave emergency perl save\n";
		3575	}
		3576
		3577	sub post_cleanup {
		3578	my ($make_core) = @_;
		3579
		3580	warn Carp::longmess "post_cleanup backtrace"
		3581	if $make_core;
		3582	}
		3583
2030	sub reload() {	3584	sub do_reload_perl() {
2031	# can/must only be called in main	3585	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	3586	if ($Coro::current != $Coro::main) {
2033	warn "can only reload from main coroutine\n";	3587	warn "can only reload from main coroutine";
2034	return;	3588	return;
2035	}	3589	}
2036		3590
2037	warn "reloading...";	3591	warn "reloading...";
2038		3592
2039	my $guard = freeze_mainloop;	3593	warn "entering sync_job";
		3594
		3595	cf::sync_job {
		3596	cf::write_runtime_sync; # external watchdog should not bark
2040	cf::emergency_save;	3597	cf::emergency_save;
		3598	cf::write_runtime_sync; # external watchdog should not bark
2041		3599
2042	eval {	3600	warn "syncing database to disk";
		3601	BDB::db_env_txn_checkpoint $DB_ENV;
		3602
2043	# if anything goes wrong in here, we should simply crash as we already saved	3603	# if anything goes wrong in here, we should simply crash as we already saved
2044		3604
2045	# cancel all watchers	3605	warn "flushing outstanding aio requests";
2046	for (Event::all_watchers) {	3606	for (;;) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;	3607	BDB::flush;
		3608	IO::AIO::flush;
		3609	Coro::cede_notself;
		3610	last unless IO::AIO::nreqs || BDB::nreqs;
		3611	warn "iterate...";
2048	}	3612	}
2049		3613
		3614	++$RELOAD;
		3615
2050	# cancel all extension coros	3616	warn "cancelling all extension coros";
2051	$_->cancel for values %EXT_CORO;	3617	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();	3618	%EXT_CORO = ();
2053		3619
2054	# unload all extensions	3620	warn "removing commands";
2055	for (@exts) {	3621	%COMMAND = ();
		3622
		3623	warn "removing ext/exti commands";
		3624	%EXTCMD = ();
		3625	%EXTICMD = ();
		3626
		3627	warn "unloading/nuking all extensions";
		3628	for my $pkg (@EXTS) {
2056	warn "unloading <$_>";	3629	warn "... unloading $pkg";
2057	unload_extension $_;	3630
		3631	if (my $cb = $pkg->can ("unload")) {
		3632	eval {
		3633	$cb->($pkg);
		3634	1
		3635	} or warn "$pkg unloaded, but with errors: $@";
2058	}	3636	}
2059		3637
		3638	warn "... nuking $pkg";
		3639	Symbol::delete_package $pkg;
		3640	}
		3641
2060	# unload all modules loaded from $LIBDIR	3642	warn "unloading all perl modules loaded from $LIBDIR";
2061	while (my ($k, $v) = each %INC) {	3643	while (my ($k, $v) = each %INC) {
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3644	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		3645
2064	warn "removing <$k>";	3646	warn "... unloading $k";
2065	delete $INC{$k};	3647	delete $INC{$k};
2066		3648
2067	$k =~ s/\.pm$//;	3649	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;	3650	$k =~ s/\//::/g;
2069		3651
…		…
2072	}	3654	}
2073		3655
2074	Symbol::delete_package $k;	3656	Symbol::delete_package $k;
2075	}	3657	}
2076		3658
2077	# sync database to disk
2078	cf::db_sync;
2079	IO::AIO::flush;
2080
2081	# get rid of safe::, as good as possible	3659	warn "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	3660	Symbol::delete_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3661	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		3662
2085	# remove register_script_function callbacks
2086	# TODO
2087
2088	# unload cf.pm "a bit"	3663	warn "unloading cf.pm \"a bit\"";
2089	delete $INC{"cf.pm"};	3664	delete $INC{"cf.pm"};
		3665	delete $INC{"cf/pod.pm"};
2090		3666
2091	# don't, removes xs symbols, too,	3667	# don't, removes xs symbols, too,
2092	# and global variables created in xs	3668	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	3669	#Symbol::delete_package __PACKAGE__;
2094		3670
2095	# reload cf.pm	3671	warn "unload completed, starting to reload now";
		3672
2096	warn "reloading cf.pm";	3673	warn "reloading cf.pm";
2097	require cf;	3674	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3675	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2099		3676
2100	# load config and database again	3677	warn "loading config and database again";
2101	cf::cfg_load;	3678	cf::reload_config;
2102	cf::db_load;
2103		3679
2104	# load extensions
2105	warn "load extensions";	3680	warn "loading extensions";
2106	cf::load_extensions;	3681	cf::load_extensions;
2107		3682
2108	# reattach attachments to objects	3683	warn "reattaching attachments to objects/players";
2109	warn "reattach";	3684	_global_reattach; # objects, sockets
2110	_global_reattach;	3685	warn "reattaching attachments to maps";
		3686	reattach $_ for values %MAP;
		3687	warn "reattaching attachments to players";
		3688	reattach $_ for values %PLAYER;
		3689
		3690	warn "leaving sync_job";
		3691
		3692	1
		3693	} or do {
		3694	warn $@;
		3695	cf::cleanup "error while reloading, exiting.";
2111	};	3696	};
2112		3697
2113	if ($@) {	3698	warn "reloaded";
2114	warn $@;
2115	warn "error while reloading, exiting.";
2116	exit 1;
2117	}
2118
2119	warn "reloaded successfully";
2120	};	3699	};
2121		3700
2122	#############################################################################	3701	our $RELOAD_WATCHER; # used only during reload
2123		3702
2124	unless ($LINK_MAP) {	3703	sub reload_perl() {
2125	$LINK_MAP = cf::map::new;	3704	# doing reload synchronously and two reloads happen back-to-back,
		3705	# coro crashes during coro_state_free->destroy here.
2126		3706
2127	$LINK_MAP->width (41);	3707	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2128	$LINK_MAP->height (41);	3708	do_reload_perl;
2129	$LINK_MAP->alloc;	3709	undef $RELOAD_WATCHER;
2130	$LINK_MAP->path ("{link}");	3710	};
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,
2137	cb => sub {
2138	$_[0]->w->cancel;
2139
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});
2158
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	3711	}
2164
2165	register "<global>", __PACKAGE__;
2166		3712
2167	register_command "reload" => sub {	3713	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	3714	my ($who, $arg) = @_;
2169		3715
2170	if ($who->flag (FLAG_WIZ)) {	3716	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	3717	$who->message ("reloading server.");
		3718	async {
		3719	$Coro::current->{desc} = "perl_reload";
		3720	reload_perl;
		3721	};
2174	}	3722	}
2175	};	3723	};
2176		3724
2177	unshift @INC, $LIBDIR;	3725	unshift @INC, $LIBDIR;
2178		3726
2179	$TICK_WATCHER = Event->timer (	3727	my $bug_warning = 0;
2180	reentrant => 0,	3728
2181	prio => 0,	3729	our @WAIT_FOR_TICK;
2182	at => $NEXT_TICK || $TICK,	3730	our @WAIT_FOR_TICK_BEGIN;
2183	data => WF_AUTOCANCEL,	3731
2184	cb => sub {	3732	sub wait_for_tick {
		3733	return if tick_inhibit || $Coro::current == $Coro::main;
		3734
		3735	my $signal = new Coro::Signal;
		3736	push @WAIT_FOR_TICK, $signal;
		3737	$signal->wait;
		3738	}
		3739
		3740	sub wait_for_tick_begin {
		3741	return if tick_inhibit || $Coro::current == $Coro::main;
		3742
		3743	my $signal = new Coro::Signal;
		3744	push @WAIT_FOR_TICK_BEGIN, $signal;
		3745	$signal->wait;
		3746	}
		3747
		3748	sub tick {
		3749	if ($Coro::current != $Coro::main) {
		3750	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3751	unless ++$bug_warning > 10;
		3752	return;
		3753	}
		3754
2185	cf::server_tick; # one server iteration	3755	cf::server_tick; # one server iteration
2186	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;
2188		3756
2189	# if we are delayed by four ticks or more, skip them all	3757	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3758	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2191		3759	Coro::async_pool {
2192	$TICK_WATCHER->at ($NEXT_TICK);	3760	$Coro::current->{desc} = "runtime saver";
2193	$TICK_WATCHER->start;
2194	},
2195	);
2196
2197	IO::AIO::max_poll_time $TICK * 0.2;
2198
2199	Event->io (
2200	fd => IO::AIO::poll_fileno,
2201	poll => 'r',
2202	prio => 5,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,
2209	after => 0,
2210	interval => 10,
2211	cb => sub {
2212	(Coro::unblock_sub {
2213	write_runtime	3761	write_runtime_sync
2214	or warn "ERROR: unable to write runtime file: $!";	3762	or warn "ERROR: unable to write runtime file: $!";
2215	})->();	3763	};
2216	},	3764	}
2217	);	3765
		3766	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3767	$sig->send;
		3768	}
		3769	while (my $sig = shift @WAIT_FOR_TICK) {
		3770	$sig->send;
		3771	}
		3772
		3773	$LOAD = ($NOW - $TICK_START) / $TICK;
		3774	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3775
		3776	if (0) {
		3777	if ($NEXT_TICK) {
		3778	my $jitter = $TICK_START - $NEXT_TICK;
		3779	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3780	warn "jitter $JITTER\n";#d#
		3781	}
		3782	}
		3783	}
		3784
		3785	{
		3786	# configure BDB
		3787
		3788	BDB::min_parallel 8;
		3789	BDB::max_poll_reqs $TICK * 0.1;
		3790	$Coro::BDB::WATCHER->priority (1);
		3791
		3792	unless ($DB_ENV) {
		3793	$DB_ENV = BDB::db_env_create;
		3794	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3795	| BDB::LOG_AUTOREMOVE, 1);
		3796	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3797	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3798
		3799	cf::sync_job {
		3800	eval {
		3801	BDB::db_env_open
		3802	$DB_ENV,
		3803	$BDBDIR,
		3804	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3805	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3806	0666;
		3807
		3808	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3809	};
		3810
		3811	cf::cleanup "db_env_open(db): $@" if $@;
		3812	};
		3813	}
		3814
		3815	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3816	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3817	};
		3818	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3819	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3820	};
		3821	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3822	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3823	};
		3824	}
		3825
		3826	{
		3827	# configure IO::AIO
		3828
		3829	IO::AIO::min_parallel 8;
		3830	IO::AIO::max_poll_time $TICK * 0.1;
		3831	$Coro::AIO::WATCHER->priority (1);
		3832	}
		3833
		3834	my $_log_backtrace;
		3835
		3836	sub _log_backtrace {
		3837	my ($msg, @addr) = @_;
		3838
		3839	$msg =~ s/\n//;
		3840
		3841	# limit the # of concurrent backtraces
		3842	if ($_log_backtrace < 2) {
		3843	++$_log_backtrace;
		3844	async {
		3845	$Coro::current->{desc} = "abt $msg";
		3846
		3847	my @bt = fork_call {
		3848	@addr = map { sprintf "%x", $_ } @addr;
		3849	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3850	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3851	or die "addr2line: $!";
		3852
		3853	my @funcs;
		3854	my @res = <$fh>;
		3855	chomp for @res;
		3856	while (@res) {
		3857	my ($func, $line) = splice @res, 0, 2, ();
		3858	push @funcs, "[$func] $line";
		3859	}
		3860
		3861	@funcs
		3862	};
		3863
		3864	LOG llevInfo, "[ABT] $msg\n";
		3865	LOG llevInfo, "[ABT] $_\n" for @bt;
		3866	--$_log_backtrace;
		3867	};
		3868	} else {
		3869	LOG llevInfo, "[ABT] $msg\n";
		3870	LOG llevInfo, "[ABT] [suppressed]\n";
		3871	}
		3872	}
		3873
		3874	# load additional modules
		3875	use cf::pod;
2218		3876
2219	END { cf::emergency_save }	3877	END { cf::emergency_save }
2220		3878
2221	1	3879	1
2222		3880

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