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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.245 by root, Tue Apr 17 10:06:33 2007 UTC vs.
Revision 1.419 by root, Sun Apr 13 01:34:09 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;
9	use Event;	30	use EV 3.2;
10	use Opcode;	31	use Opcode;
11	use Safe;	32	use Safe;
12	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
13		35
14	use Coro 3.61 ();	36	use Coro 4.50 ();
15	use Coro::State;	37	use Coro::State;
		38	use Coro::Handle;
16	use Coro::Event;	39	use Coro::EV;
17	use Coro::Timer;	40	use Coro::Timer;
18	use Coro::Signal;	41	use Coro::Signal;
19	use Coro::Semaphore;	42	use Coro::Semaphore;
20	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
21	use Coro::Storable;	45	use Coro::Storable;
		46	use Coro::Util ();
22		47
		48	use JSON::XS 2.01 ();
23	use BDB ();	49	use BDB ();
24	use Data::Dumper;	50	use Data::Dumper;
25	use Digest::MD5;	51	use Digest::MD5;
26	use Fcntl;	52	use Fcntl;
27	use YAML::Syck ();	53	use YAML ();
28	use IO::AIO 2.32 ();	54	use IO::AIO 2.51 ();
29	use Time::HiRes;	55	use Time::HiRes;
30	use Compress::LZF;	56	use Compress::LZF;
		57	use Digest::MD5 ();
31		58
32	# configure various modules to our taste	59	# configure various modules to our taste
33	#	60	#
34	$Storable::canonical = 1; # reduce rsync transfers	61	$Storable::canonical = 1; # reduce rsync transfers
35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
36	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
37		64
38	$Event::Eval = 1; # no idea why this is required, but it is
39
40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
41	$YAML::Syck::ImplicitUnicode = 1;
42
43	$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
44		66
45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
46		68
47	our %COMMAND = ();	69	our %COMMAND = ();
48	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
49		71
50	our @EXTS = (); # list of extension package names	72	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	75	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	76	our %EXT_MAP = (); # pluggable maps
54		77
55	our $RELOAD; # number of reloads so far	78	our $RELOAD; # number of reloads so far
56	our @EVENT;	79	our @EVENT;
57	our $LIBDIR = datadir . "/ext";	80
		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;
58		93
59	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	94	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;	95	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	97	our $NEXT_TICK;
64	our $NOW;
65	our $USE_FSYNC = 1; # use fsync to write maps - default off	98	our $USE_FSYNC = 1; # use fsync to write maps - default off
66		99
67	our $BDB_POLL_WATCHER;	100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
68	our $DB_ENV;	104	our $DB_ENV;
69		105
70	our %CFG;	106	our %CFG;
71		107
72	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
73	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
74		111
75	our %PLAYER; # all users	112	our (%PLAYER, %PLAYER_LOADING); # all users
76	our %MAP; # all maps	113	our (%MAP, %MAP_LOADING ); # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	114	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80		115
81	# used to convert map paths into valid unix filenames by replacing / by ∕	116	# used to convert map paths into valid unix filenames by replacing / by ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		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 $TICK_START; # for load detecting purposes
		123
84	binmode STDOUT;	124	binmode STDOUT;
85	binmode STDERR;	125	binmode STDERR;
86		126
87	# read virtual server time, if available	127	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
89	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
90	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
91	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
92	}	132	}
93		133
94	mkdir cf::localdir;	134	mkdir $_
95	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
96	mkdir cf::localdir . "/" . cf::tmpdir;
97	mkdir cf::localdir . "/" . cf::uniquedir;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		136
101	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
102		138
103	sub cf::map::normalise;	139	sub cf::map::normalise;
104		140
…		…
115	=item $cf::RUNTIME	151	=item $cf::RUNTIME
116		152
117	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
118	every server tick.	154	every server tick.
119		155
120	=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
121		159
122	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
123	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.
124		164
125	=item $cf::NOW	165	=item $cf::NOW
126		166
127	The time of the last (current) server tick.	167	The time of the last (current) server tick.
128		168
129	=item $cf::TICK	169	=item $cf::TICK
130		170
131	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
132		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
133	=item %cf::CFG	183	=item %cf::CFG
134		184
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
136	from wherever your confdir points to.	186	from wherever your confdir points to.
137		187
138	=item cf::wait_for_tick, cf::wait_for_tick_begin	188	=item cf::wait_for_tick, cf::wait_for_tick_begin
139		189
140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
141	returns directly I<after> the tick processing (and consequently, can only wake one process	191	returns directly I<after> the tick processing (and consequently, can only wake one process
142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
143		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.
		199
144	=back	200	=back
145		201
146	=cut	202	=cut
147		203
148	BEGIN {	204	BEGIN {
149	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	206	my $msg = join "", @_;
151	utf8::encode $msg;
152		207
153	$msg .= "\n"	208	$msg .= "\n"
154	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
155		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
156	LOG llevError, $msg;	213	LOG llevError, $msg;
157	};	214	};
158	}	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#?
159		231
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@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';
165	@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)
166		239
167	# 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
168	# within the Safe compartment.	241	# within the Safe compartment.
169	for my $pkg (qw(	242	for my $pkg (qw(
170	cf::global cf::attachable	243	cf::global cf::attachable
…		…
175	)) {	248	)) {
176	no strict 'refs';	249	no strict 'refs';
177	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
178	}	251	}
179		252
180	$Event::DIED = sub {	253	$EV::DIED = sub {
181	warn "error in event callback: @_";	254	warn "error in event callback: @_";
182	};	255	};
		256
		257	#############################################################################
183		258
184	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
185		260
186	=over 4	261	=over 4
187		262
…		…
206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
207	$d	282	$d
208	} || "[unable to dump $_[0]: '$@']";	283	} || "[unable to dump $_[0]: '$@']";
209	}	284	}
210		285
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
212
213	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
214		287
215	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
216		289
217	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
218		291
219	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
		293
		294	=cut
		295
		296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		297
		298	sub encode_json($) { $json_coder->encode ($_[0]) }
		299	sub decode_json($) { $json_coder->decode ($_[0]) }
220		300
221	=item cf::lock_wait $string	301	=item cf::lock_wait $string
222		302
223	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
224		304
…		…
227	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
228	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,
229	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
230	returned.	310	returned.
231		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
232	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
233	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
234		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
235	=cut	322	=cut
236		323
237	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
238		326
239	sub lock_wait($) {	327	sub lock_wait($) {
240	my ($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#
241		334
242	# wait for lock, if any	335	# wait for lock, if any
243	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;	338	Coro::schedule;
…		…
251		344
252	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
253	lock_wait $key;	346	lock_wait $key;
254		347
255	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
256		350
257	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
258	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
260	}	355	}
261	}	356	}
262		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
263	sub freeze_mainloop {	364	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
265		366
266	my $guard = Coro::guard {	367	Coro::guard \&tick_inhibit_dec;
267	$TICK_WATCHER->start;	368	}
		369
		370	=item cf::periodic $interval, $cb
		371
		372	Like EV::periodic, but randomly selects a starting point so that the actions
		373	get spread over timer.
		374
		375	=cut
		376
		377	sub periodic($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
268	};	428	}
269	$TICK_WATCHER->stop;	429	};
270	$guard	430
		431	sub get_slot($;$$) {
		432	my ($time, $pri, $name) = @_;
		433
		434	$time = $TICK * .6 if $time > $TICK * .6;
		435	my $sig = new Coro::Signal;
		436
		437	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		438	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		439	$SLOT_QUEUE->ready;
		440	$sig->wait;
271	}	441	}
272		442
273	=item cf::async { BLOCK }	443	=item cf::async { BLOCK }
274		444
275	Currently the same as Coro::async_pool, meaning you cannot use	445	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		450
281	BEGIN { *async = \&Coro::async_pool }	451	BEGIN { *async = \&Coro::async_pool }
282		452
283	=item cf::sync_job { BLOCK }	453	=item cf::sync_job { BLOCK }
284		454
285	The design of crossfire+ requires that the main coro ($Coro::main) is	455	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	456	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
288		459
289	If it must be done, put the blocking parts into C<sync_job>. This will run	460	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	461	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	462	server will be frozen during this time, so the block should either finish
292	fast or be very important.	463	fast or be very important.
…		…
295		466
296	sub sync_job(&) {	467	sub sync_job(&) {
297	my ($job) = @_;	468	my ($job) = @_;
298		469
299	if ($Coro::current == $Coro::main) {	470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
300	# this is the main coro, too bad, we have to block	473	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	474	# till the operation succeeds, freezing the server :/
302		475
303	# TODO: use suspend/resume instead	476	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	477
305	my $freeze_guard = freeze_mainloop;	478	my $freeze_guard = freeze_mainloop;
306		479
307	my $busy = 1;	480	my $busy = 1;
308	my @res;	481	my @res;
309		482
310	(async {	483	(async {
		484	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	485	@res = eval { $job->() };
312	warn $@ if $@;	486	warn $@ if $@;
313	undef $busy;	487	undef $busy;
314	})->prio (Coro::PRIO_MAX);	488	})->prio (Coro::PRIO_MAX);
315		489
316	while ($busy) {	490	while ($busy) {
317	Coro::cede or Event::one_event;	491	if (Coro::nready) {
		492	Coro::cede_notself;
		493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
318	}	495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
319		501
320	wantarray ? @res : $res[0]	502	wantarray ? @res : $res[0]
321	} else {	503	} else {
322	# we are in another coroutine, how wonderful, everything just works	504	# we are in another coroutine, how wonderful, everything just works
323		505
…		…
343	$EXT_CORO{$coro+0} = $coro;	525	$EXT_CORO{$coro+0} = $coro;
344		526
345	$coro	527	$coro
346	}	528	}
347		529
348	sub write_runtime {	530	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		531
351	my $runtime = cf::localdir . "/runtime";	532	Executes the given code block with the given arguments in a seperate
		533	process, returning the results. Everything must be serialisable with
		534	Coro::Storable. May, of course, block. Note that the executed sub may
		535	never block itself or use any form of event handling.
352		536
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	537	=cut
354	or return;
355		538
356	my $value = $cf::RUNTIME + 90 + 10;	539	sub fork_call(&@) {
357	# 10 is the runtime save interval, for a monotonic clock	540	my ($cb, @args) = @_;
358	# 60 allows for the watchdog to kill the server.
359		541
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	542	# we seemingly have to make a local copy of the whole thing,
361	and return;	543	# otherwise perl prematurely frees the stuff :/
		544	# TODO: investigate and fix (likely this will be rather laborious)
362		545
363	# always fsync - this file is important	546	my @res = Coro::Util::fork_eval {
364	aio_fsync $fh	547	reset_signals;
365	and return;	548	&$cb
		549	}, @args;
366		550
367	close $fh	551	wantarray ? @res : $res[-1]
368	or return;	552	}
369		553
370	aio_rename "$runtime~", $runtime	554	=item $coin = coin_from_name $name
371	and return;
372		555
		556	=cut
		557
		558	our %coin_alias = (
		559	"silver" => "silvercoin",
		560	"silvercoin" => "silvercoin",
		561	"silvercoins" => "silvercoin",
		562	"gold" => "goldcoin",
		563	"goldcoin" => "goldcoin",
		564	"goldcoins" => "goldcoin",
		565	"platinum" => "platinacoin",
		566	"platinumcoin" => "platinacoin",
		567	"platinumcoins" => "platinacoin",
		568	"platina" => "platinacoin",
		569	"platinacoin" => "platinacoin",
		570	"platinacoins" => "platinacoin",
		571	"royalty" => "royalty",
		572	"royalties" => "royalty",
		573	);
		574
		575	sub coin_from_name($) {
		576	$coin_alias{$_[0]}
		577	? cf::arch::find $coin_alias{$_[0]}
		578	: undef
		579	}
		580
		581	=item $value = cf::db_get $family => $key
		582
		583	Returns a single value from the environment database.
		584
		585	=item cf::db_put $family => $key => $value
		586
		587	Stores the given C<$value> in the family. It can currently store binary
		588	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		589
		590	=item $db = cf::db_table "name"
		591
		592	Create and/or open a new database table. The string must not be "db" and must be unique
		593	within each server.
		594
		595	=cut
		596
		597	sub db_table($) {
		598	my ($name) = @_;
		599	my $db = BDB::db_create $DB_ENV;
		600
		601	eval {
		602	$db->set_flags (BDB::CHKSUM);
		603
		604	utf8::encode $name;
		605	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		606	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		607	cf::cleanup "db_open(db): $!" if $!;
		608	};
		609	cf::cleanup "db_open(db): $@" if $@;
		610
		611	$db
		612	}
		613
		614	our $DB;
		615
		616	sub db_init {
		617	cf::sync_job {
		618	$DB ||= db_table "db";
		619	};
		620	}
		621
		622	sub db_get($$) {
		623	my $key = "$_[0]/$_[1]";
		624
		625	cf::sync_job {
		626	BDB::db_get $DB, undef, $key, my $data;
		627
		628	$! ? ()
		629	: $data
373	1	630	}
		631	}
		632
		633	sub db_put($$$) {
		634	BDB::dbreq_pri 4;
		635	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		636	}
		637
		638	=item cf::cache $id => [$paths...], $processversion => $process
		639
		640	Generic caching function that returns the value of the resource $id,
		641	caching and regenerating as required.
		642
		643	This function can block.
		644
		645	=cut
		646
		647	sub cache {
		648	my ($id, $src, $processversion, $process) = @_;
		649
		650	my $meta =
		651	join "\x00",
		652	$processversion,
		653	map {
		654	aio_stat $_
		655	and Carp::croak "$_: $!";
		656
		657	($_, (stat _)[7,9])
		658	} @$src;
		659
		660	my $dbmeta = db_get cache => "$id/meta";
		661	if ($dbmeta ne $meta) {
		662	# changed, we may need to process
		663
		664	my @data;
		665	my $md5;
		666
		667	for (0 .. $#$src) {
		668	0 <= aio_load $src->[$_], $data[$_]
		669	or Carp::croak "$src->[$_]: $!";
		670	}
		671
		672	# if processing is expensive, check
		673	# checksum first
		674	if (1) {
		675	$md5 =
		676	join "\x00",
		677	$processversion,
		678	map {
		679	cf::cede_to_tick;
		680	($src->[$_], Digest::MD5::md5_hex $data[$_])
		681	} 0.. $#$src;
		682
		683
		684	my $dbmd5 = db_get cache => "$id/md5";
		685	if ($dbmd5 eq $md5) {
		686	db_put cache => "$id/meta", $meta;
		687
		688	return db_get cache => "$id/data";
		689	}
		690	}
		691
		692	my $t1 = Time::HiRes::time;
		693	my $data = $process->(\@data);
		694	my $t2 = Time::HiRes::time;
		695
		696	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		697
		698	db_put cache => "$id/data", $data;
		699	db_put cache => "$id/md5" , $md5;
		700	db_put cache => "$id/meta", $meta;
		701
		702	return $data;
		703	}
		704
		705	db_get cache => "$id/data"
374	}	706	}
375		707
376	=item cf::datalog type => key => value, ...	708	=item cf::datalog type => key => value, ...
377		709
378	Log a datalog packet of the given type with the given key-value pairs.	710	Log a datalog packet of the given type with the given key-value pairs.
…		…
396	attach callbacks/event handlers (a collection of which is called an "attachment")	728	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	729	to it. All such attachable objects support the following methods.
398		730
399	In the following description, CLASS can be any of C<global>, C<object>	731	In the following description, CLASS can be any of C<global>, C<object>
400	C<player>, C<client> or C<map> (i.e. the attachable objects in	732	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	733	Deliantra).
402		734
403	=over 4	735	=over 4
404		736
405	=item $attachable->attach ($attachment, key => $value...)	737	=item $attachable->attach ($attachment, key => $value...)
406		738
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	901	$registry = $CB_TYPE[$object_type] ||= [];
570		902
571	} elsif ($type eq "subtype") {	903	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	904	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	905	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	906	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		907
576	} elsif ($type eq "package") {	908	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	909	my $pkg = shift @arg;
578		910
579	while (my ($name, $id) = each %cb_id) {	911	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	940	_attach $registry, $klass, @attach;
609	}	941	}
610		942
611	$obj->{$name} = \%arg;	943	$obj->{$name} = \%arg;
612	} else {	944	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	945	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	946	}
615		947
616	$obj->{_attachment}{$name} = undef;	948	$obj->{_attachment}{$name} = undef;
617	}	949	}
618		950
…		…
620	if (ref $_[0]) {	952	if (ref $_[0]) {
621	_object_attach @_;	953	_object_attach @_;
622	} else {	954	} else {
623	_attach shift->_attach_registry, @_;	955	_attach shift->_attach_registry, @_;
624	}	956	}
		957	_recalc_want;
625	};	958	};
626		959
627	# all those should be optimised	960	# all those should be optimised
628	sub cf::attachable::detach {	961	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	962	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	965	delete $obj->{_attachment}{$name};
633	reattach ($obj);	966	reattach ($obj);
634	} else {	967	} else {
635	Carp::croak "cannot, currently, detach class attachments";	968	Carp::croak "cannot, currently, detach class attachments";
636	}	969	}
		970	_recalc_want;
637	};	971	};
638		972
639	sub cf::attachable::attached {	973	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
641		975
…		…
656	";	990	";
657	die if $@;	991	die if $@;
658	}	992	}
659		993
660	our $override;	994	our $override;
661	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	995	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
662		996
663	sub override {	997	sub override {
664	$override = 1;	998	$override = 1;
665	@invoke_results = ();	999	@INVOKE_RESULTS = (@_);
666	}	1000	}
667		1001
668	sub do_invoke {	1002	sub do_invoke {
669	my $event = shift;	1003	my $event = shift;
670	my $callbacks = shift;	1004	my $callbacks = shift;
671		1005
672	@invoke_results = ();	1006	@INVOKE_RESULTS = ();
673		1007
674	local $override;	1008	local $override;
675		1009
676	for (@$callbacks) {	1010	for (@$callbacks) {
677	eval { &{$_->[1]} };	1011	eval { &{$_->[1]} };
…		…
686	}	1020	}
687		1021
688	0	1022	0
689	}	1023	}
690		1024
691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1025	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
692		1026
693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
694		1028
695	Generate an object-specific event with the given arguments.	1029	Generate an object-specific event with the given arguments.
696		1030
697	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1031	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
698	removed in future versions), and there is no public API to access override	1032	removed in future versions), and there is no public API to access override
699	results (if you must, access C<@cf::invoke_results> directly).	1033	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		1034
701	=back	1035	=back
702		1036
703	=cut	1037	=cut
704		1038
705	#############################################################################	1039	#############################################################################
706	# object support	1040	# object support
		1041
		1042	sub _object_equal($$);
		1043	sub _object_equal($$) {
		1044	my ($a, $b) = @_;
		1045
		1046	return 0 unless (ref $a) eq (ref $b);
		1047
		1048	if ("HASH" eq ref $a) {
		1049	my @ka = keys %$a;
		1050	my @kb = keys %$b;
		1051
		1052	return 0 if @ka != @kb;
		1053
		1054	for (0 .. $#ka) {
		1055	return 0 unless $ka[$_] eq $kb[$_];
		1056	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1057	}
		1058
		1059	} elsif ("ARRAY" eq ref $a) {
		1060
		1061	return 0 if @$a != @$b;
		1062
		1063	for (0 .. $#$a) {
		1064	return 0 unless _object_equal $a->[$_], $b->[$_];
		1065	}
		1066
		1067	} elsif ($a ne $b) {
		1068	return 0;
		1069	}
		1070
		1071	1
		1072	}
		1073
		1074	our $SLOW_MERGES;#d#
		1075	sub _can_merge {
		1076	my ($ob1, $ob2) = @_;
		1077
		1078	++$SLOW_MERGES;#d#
		1079
		1080	# we do the slow way here
		1081	return _object_equal $ob1, $ob2
		1082	}
707		1083
708	sub reattach {	1084	sub reattach {
709	# basically do the same as instantiate, without calling instantiate	1085	# basically do the same as instantiate, without calling instantiate
710	my ($obj) = @_;	1086	my ($obj) = @_;
711		1087
…		…
732	cf::attachable->attach (	1108	cf::attachable->attach (
733	prio => -1000000,	1109	prio => -1000000,
734	on_instantiate => sub {	1110	on_instantiate => sub {
735	my ($obj, $data) = @_;	1111	my ($obj, $data) = @_;
736		1112
737	$data = from_json $data;	1113	$data = decode_json $data;
738		1114
739	for (@$data) {	1115	for (@$data) {
740	my ($name, $args) = @$_;	1116	my ($name, $args) = @$_;
741		1117
742	$obj->attach ($name, %{$args || {} });	1118	$obj->attach ($name, %{$args || {} });
…		…
758	sub object_freezer_save {	1134	sub object_freezer_save {
759	my ($filename, $rdata, $objs) = @_;	1135	my ($filename, $rdata, $objs) = @_;
760		1136
761	sync_job {	1137	sync_job {
762	if (length $$rdata) {	1138	if (length $$rdata) {
		1139	utf8::decode (my $decname = $filename);
763	warn sprintf "saving %s (%d,%d)\n",	1140	warn sprintf "saving %s (%d,%d)\n",
764	$filename, length $$rdata, scalar @$objs;	1141	$decname, length $$rdata, scalar @$objs;
765		1142
766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1143	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
767	chmod SAVE_MODE, $fh;	1144	chmod SAVE_MODE, $fh;
768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1145	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
769	aio_fsync $fh if $cf::USE_FSYNC;	1146	aio_fsync $fh if $cf::USE_FSYNC;
770	close $fh;	1147	close $fh;
771		1148
772	if (@$objs) {	1149	if (@$objs) {
773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1150	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
774	chmod SAVE_MODE, $fh;	1151	chmod SAVE_MODE, $fh;
775	my $data = Storable::nfreeze { version => 1, objs => $objs };	1152	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
776	aio_write $fh, 0, (length $data), $data, 0;	1153	aio_write $fh, 0, (length $data), $data, 0;
777	aio_fsync $fh if $cf::USE_FSYNC;	1154	aio_fsync $fh if $cf::USE_FSYNC;
778	close $fh;	1155	close $fh;
779	aio_rename "$filename.pst~", "$filename.pst";	1156	aio_rename "$filename.pst~", "$filename.pst";
780	}	1157	}
…		…
788	}	1165	}
789	} else {	1166	} else {
790	aio_unlink $filename;	1167	aio_unlink $filename;
791	aio_unlink "$filename.pst";	1168	aio_unlink "$filename.pst";
792	}	1169	}
793	}	1170	};
794	}	1171	}
795		1172
796	sub object_freezer_as_string {	1173	sub object_freezer_as_string {
797	my ($rdata, $objs) = @_;	1174	my ($rdata, $objs) = @_;
798		1175
…		…
810	or return;	1187	or return;
811		1188
812	unless (aio_stat "$filename.pst") {	1189	unless (aio_stat "$filename.pst") {
813	(aio_load "$filename.pst", $av) >= 0	1190	(aio_load "$filename.pst", $av) >= 0
814	or return;	1191	or return;
		1192
815	$av = eval { (Storable::thaw $av)->{objs} };	1193	my $st = eval { Coro::Storable::thaw $av };
		1194	$av = $st->{objs};
816	}	1195	}
817		1196
		1197	utf8::decode (my $decname = $filename);
818	warn sprintf "loading %s (%d)\n",	1198	warn sprintf "loading %s (%d,%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1199	$decname, length $data, scalar @{$av || []};
		1200
820	return ($data, $av);	1201	($data, $av)
821	}	1202	}
		1203
		1204	=head2 COMMAND CALLBACKS
		1205
		1206	=over 4
		1207
		1208	=cut
822		1209
823	#############################################################################	1210	#############################################################################
824	# command handling &c	1211	# command handling &c
825		1212
826	=item cf::register_command $name => \&callback($ob,$args);	1213	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1226	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1227	}
841		1228
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1229	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1230
844	Register a callbackf ro execution when the client sends an extcmd packet.	1231	Register a callback for execution when the client sends an (synchronous)
		1232	extcmd packet. Ext commands will be processed in the order they are
		1233	received by the server, like other user commands. The first argument is
		1234	the logged-in player. Ext commands can only be processed after a player
		1235	has logged in successfully.
845		1236
846	If the callback returns something, it is sent back as if reply was being	1237	If the callback returns something, it is sent back as if reply was being
847	called.	1238	called.
848		1239
		1240	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1241
		1242	Register a callback for execution when the client sends an (asynchronous)
		1243	exticmd packet. Exti commands are processed by the server as soon as they
		1244	are received, i.e. out of order w.r.t. other commands. The first argument
		1245	is a client socket. Exti commands can be received anytime, even before
		1246	log-in.
		1247
		1248	If the callback returns something, it is sent back as if reply was being
		1249	called.
		1250
849	=cut	1251	=cut
850		1252
851	sub register_extcmd {	1253	sub register_extcmd {
852	my ($name, $cb) = @_;	1254	my ($name, $cb) = @_;
853		1255
854	$EXTCMD{$name} = $cb;	1256	$EXTCMD{$name} = $cb;
		1257	}
		1258
		1259	sub register_exticmd {
		1260	my ($name, $cb) = @_;
		1261
		1262	$EXTICMD{$name} = $cb;
855	}	1263	}
856		1264
857	cf::player->attach (	1265	cf::player->attach (
858	on_command => sub {	1266	on_command => sub {
859	my ($pl, $name, $params) = @_;	1267	my ($pl, $name, $params) = @_;
…		…
868	cf::override;	1276	cf::override;
869	},	1277	},
870	on_extcmd => sub {	1278	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1279	my ($pl, $buf) = @_;
872		1280
873	my $msg = eval { from_json $buf };	1281	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1282
875	if (ref $msg) {	1283	if (ref $msg) {
		1284	my ($type, $reply, @payload) =
		1285	"ARRAY" eq ref $msg
		1286	? @$msg
		1287	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1288
		1289	my @reply;
		1290
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1291	if (my $cb = $EXTCMD{$type}) {
877	if (my %reply = $cb->($pl, $msg)) {	1292	@reply = $cb->($pl, @payload);
878	$pl->ext_reply ($msg->{msgid}, %reply);
879	}
880	}	1293	}
		1294
		1295	$pl->ext_reply ($reply, @reply)
		1296	if $reply;
		1297
881	} else {	1298	} else {
882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1299	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
883	}	1300	}
884		1301
885	cf::override;	1302	cf::override;
886	},	1303	},
887	);	1304	);
888		1305
889	sub load_extension {
890	my ($path) = @_;
891
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
893	my $base = $1;
894	my $pkg = $1;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}
917	die $@;
918	}
919
920	push @EXTS, $pkg;
921	}
922
923	sub load_extensions {	1306	sub load_extensions {
		1307	cf::sync_job {
		1308	my %todo;
		1309
924	for my $ext (<$LIBDIR/*.ext>) {	1310	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1311	next unless -r $path;
926	eval {	1312
927	load_extension $ext;	1313	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1314	my $base = $1;
		1315	my $pkg = $1;
		1316	$pkg =~ s/[^[:word:]]/_/g;
		1317	$pkg = "ext::$pkg";
		1318
		1319	open my $fh, "<:utf8", $path
		1320	or die "$path: $!";
		1321
		1322	my $source = do { local $/; <$fh> };
		1323
		1324	my %ext = (
		1325	path => $path,
		1326	base => $base,
		1327	pkg => $pkg,
		1328	);
		1329
		1330	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1331	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1332
		1333	$ext{source} =
		1334	"package $pkg; use strict; use utf8;\n"
		1335	. "#line 1 \"$path\"\n{\n"
		1336	. $source
		1337	. "\n};\n1";
		1338
		1339	$todo{$base} = \%ext;
		1340	}
		1341
		1342	my %done;
		1343	while (%todo) {
		1344	my $progress;
		1345
		1346	while (my ($k, $v) = each %todo) {
		1347	for (split /,\s*/, $v->{meta}{depends}) {
		1348	goto skip
		1349	unless exists $done{$_};
		1350	}
		1351
		1352	warn "... loading '$k' into '$v->{pkg}'\n";
		1353
		1354	unless (eval $v->{source}) {
		1355	my $msg = $@ ? "$v->{path}: $@\n"
		1356	: "$v->{base}: extension inactive.\n";
		1357
		1358	if (exists $v->{meta}{mandatory}) {
		1359	warn $msg;
		1360	cf::cleanup "mandatory extension failed to load, exiting.";
		1361	}
		1362
		1363	warn $msg;
		1364	}
		1365
		1366	$done{$k} = delete $todo{$k};
		1367	push @EXTS, $v->{pkg};
		1368	$progress = 1;
928	1	1369	}
929	} or warn "$ext not loaded: $@";	1370
		1371	skip:
		1372	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1373	unless $progress;
		1374	}
930	}	1375	};
931	}	1376	}
932		1377
933	#############################################################################	1378	#############################################################################
934		1379
		1380	=back
		1381
935	=head2 CORE EXTENSIONS	1382	=head2 CORE EXTENSIONS
936		1383
937	Functions and methods that extend core crossfire objects.	1384	Functions and methods that extend core crossfire objects.
938		1385
939	=cut	1386	=cut
…		…
944		1391
945	=head3 cf::player	1392	=head3 cf::player
946		1393
947	=over 4	1394	=over 4
948		1395
		1396	=item cf::player::num_playing
		1397
		1398	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1399
		1400	=cut
		1401
		1402	sub num_playing {
		1403	scalar grep
		1404	$_->ob->map
		1405	&& !$_->hidden
		1406	&& !$_->ob->flag (cf::FLAG_WIZ),
		1407	cf::player::list
		1408	}
		1409
949	=item cf::player::find $login	1410	=item cf::player::find $login
950		1411
951	Returns the given player object, loading it if necessary (might block).	1412	Returns the given player object, loading it if necessary (might block).
952		1413
953	=cut	1414	=cut
954		1415
955	sub playerdir($) {	1416	sub playerdir($) {
956	cf::localdir	1417	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1418	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1419	}
962		1420
963	sub path($) {	1421	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1422	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1449	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1450	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
993	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1451	aio_unlink +(playerdir $login) . "/$login.pl.pst";
994	aio_unlink +(playerdir $login) . "/$login.pl";	1452	aio_unlink +(playerdir $login) . "/$login.pl";
995		1453
996	my $pl = load_pl path $login	1454	my $f = new_from_file cf::object::thawer path $login
997	or return;	1455	or return;
		1456
		1457	my $pl = cf::player::load_pl $f
		1458	or return;
		1459	local $cf::PLAYER_LOADING{$login} = $pl;
		1460	$f->resolve_delayed_derefs;
998	$cf::PLAYER{$login} = $pl	1461	$cf::PLAYER{$login} = $pl
999	}	1462	}
1000	}	1463	}
1001	}	1464	}
1002		1465
…		…
1012		1475
1013	aio_mkdir playerdir $pl, 0770;	1476	aio_mkdir playerdir $pl, 0770;
1014	$pl->{last_save} = $cf::RUNTIME;	1477	$pl->{last_save} = $cf::RUNTIME;
1015		1478
1016	$pl->save_pl ($path);	1479	$pl->save_pl ($path);
1017	Coro::cede;	1480	cf::cede_to_tick;
1018	}	1481	}
1019		1482
1020	sub new($) {	1483	sub new($) {
1021	my ($login) = @_;	1484	my ($login) = @_;
1022		1485
…		…
1026	$self->{deny_save} = 1;	1489	$self->{deny_save} = 1;
1027		1490
1028	$cf::PLAYER{$login} = $self;	1491	$cf::PLAYER{$login} = $self;
1029		1492
1030	$self	1493	$self
		1494	}
		1495
		1496	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1497
		1498	=cut
		1499
		1500	sub send_msg {
		1501	my $ns = shift->ns
		1502	or return;
		1503	$ns->send_msg (@_);
1031	}	1504	}
1032		1505
1033	=item $pl->quit_character	1506	=item $pl->quit_character
1034		1507
1035	Nukes the player without looking back. If logged in, the connection will	1508	Nukes the player without looking back. If logged in, the connection will
…		…
1084	while and may block, so not sync_job-capable, ever.	1557	while and may block, so not sync_job-capable, ever.
1085		1558
1086	=cut	1559	=cut
1087		1560
1088	sub list_logins {	1561	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1562	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1563	or return [];
1091		1564
1092	my @logins;	1565	my @logins;
1093		1566
1094	for my $login (@$dirs) {	1567	for my $login (@$dirs) {
		1568	my $path = path $login;
		1569
		1570	# a .pst is a dead give-away for a valid player
		1571	unless (-e "$path.pst") {
1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1572	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1096	aio_read $fh, 0, 512, my $buf, 0 or next;	1573	aio_read $fh, 0, 512, my $buf, 0 or next;
1097	$buf !~ /^password -------------$/m or next; # official not-valid tag	1574	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1575	}
1098		1576
1099	utf8::decode $login;	1577	utf8::decode $login;
1100	push @logins, $login;	1578	push @logins, $login;
1101	}	1579	}
1102		1580
…		…
1129	}	1607	}
1130		1608
1131	\@paths	1609	\@paths
1132	}	1610	}
1133		1611
		1612	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1613
		1614	Expand crossfire pod fragments into protocol xml.
		1615
		1616	=cut
		1617
		1618	use re 'eval';
		1619
		1620	my $group;
		1621	my $interior; $interior = qr{
		1622	# match a pod interior sequence sans C<< >>
		1623	(?:
		1624	\ (.*?)\ (?{ $group = $^N })
		1625	| < (??{$interior}) >
		1626	)
		1627	}x;
		1628
		1629	sub expand_cfpod {
		1630	my ($self, $pod) = @_;
		1631
		1632	my $xml;
		1633
		1634	while () {
		1635	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1636	$group = $1;
		1637
		1638	$group =~ s/&/&amp;/g;
		1639	$group =~ s/</&lt;/g;
		1640
		1641	$xml .= $group;
		1642	} elsif ($pod =~ m%\G
		1643	([BCGHITU])
		1644	<
		1645	(?:
		1646	([^<>]*) (?{ $group = $^N })
		1647	| < $interior >
		1648	)
		1649	>
		1650	%gcsx
		1651	) {
		1652	my ($code, $data) = ($1, $group);
		1653
		1654	if ($code eq "B") {
		1655	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1656	} elsif ($code eq "I") {
		1657	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1658	} elsif ($code eq "U") {
		1659	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1660	} elsif ($code eq "C") {
		1661	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1662	} elsif ($code eq "T") {
		1663	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1664	} elsif ($code eq "G") {
		1665	my ($male, $female) = split /\|/, $data;
		1666	$data = $self->gender ? $female : $male;
		1667	$xml .= expand_cfpod ($self, $data);
		1668	} elsif ($code eq "H") {
		1669	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1670	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1671	"")
		1672	[$self->{hintmode}];
		1673	} else {
		1674	$xml .= "error processing '$code($data)' directive";
		1675	}
		1676	} else {
		1677	if ($pod =~ /\G(.+)/) {
		1678	warn "parse error while expanding $pod (at $1)";
		1679	}
		1680	last;
		1681	}
		1682	}
		1683
		1684	for ($xml) {
		1685	# create single paragraphs (very hackish)
		1686	s/(?<=\S)\n(?=\w)/ /g;
		1687
		1688	# compress some whitespace
		1689	s/\s+\n/\n/g; # ws line-ends
		1690	s/\n\n+/\n/g; # double lines
		1691	s/^\n+//; # beginning lines
		1692	s/\n+$//; # ending lines
		1693	}
		1694
		1695	$xml
		1696	}
		1697
		1698	no re 'eval';
		1699
		1700	sub hintmode {
		1701	$_[0]{hintmode} = $_[1] if @_ > 1;
		1702	$_[0]{hintmode}
		1703	}
		1704
1134	=item $player->ext_reply ($msgid, %msg)	1705	=item $player->ext_reply ($msgid, @msg)
1135		1706
1136	Sends an ext reply to the player.	1707	Sends an ext reply to the player.
1137		1708
1138	=cut	1709	=cut
1139		1710
1140	sub ext_reply($$%) {	1711	sub ext_reply($$@) {
1141	my ($self, $id, %msg) = @_;	1712	my ($self, $id, @msg) = @_;
1142		1713
1143	$msg{msgid} = $id;	1714	$self->ns->ext_reply ($id, @msg)
1144
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1715	}
1147		1716
1148	=item $player->ext_event ($type, %msg)	1717	=item $player->ext_msg ($type, @msg)
1149		1718
1150	Sends an ext event to the client.	1719	Sends an ext event to the client.
1151		1720
1152	=cut	1721	=cut
1153		1722
1154	sub ext_event($$%) {	1723	sub ext_msg($$@) {
1155	my ($self, $type, %msg) = @_;	1724	my ($self, $type, @msg) = @_;
1156		1725
1157	$self->ns->ext_event ($type, %msg);	1726	$self->ns->ext_msg ($type, @msg);
1158	}	1727	}
1159		1728
1160	=head3 cf::region	1729	=head3 cf::region
1161		1730
1162	=over 4	1731	=over 4
…		…
1165		1734
1166	package cf::region;	1735	package cf::region;
1167		1736
1168	=item cf::region::find_by_path $path	1737	=item cf::region::find_by_path $path
1169		1738
1170	Tries to decuce the probable region for a map knowing only its path.	1739	Tries to decuce the likely region for a map knowing only its path.
1171		1740
1172	=cut	1741	=cut
1173		1742
1174	sub find_by_path($) {	1743	sub find_by_path($) {
1175	my ($path) = @_;	1744	my ($path) = @_;
1176		1745
1177	my ($match, $specificity);	1746	my ($match, $specificity);
1178		1747
1179	for my $region (list) {	1748	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1749	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1750	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1751	if $region->specificity > $specificity;
1183	}	1752	}
1184	}	1753	}
1185		1754
…		…
1206	our $MAX_RESET = 3600;	1775	our $MAX_RESET = 3600;
1207	our $DEFAULT_RESET = 3000;	1776	our $DEFAULT_RESET = 3000;
1208		1777
1209	sub generate_random_map {	1778	sub generate_random_map {
1210	my ($self, $rmp) = @_;	1779	my ($self, $rmp) = @_;
		1780
		1781	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1782
1211	# mit "rum" bekleckern, nicht	1783	# mit "rum" bekleckern, nicht
1212	$self->_create_random_map (	1784	$self->_create_random_map (
1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1785	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1786	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1787	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1249	my ($self, $merge) = @_;	1821	my ($self, $merge) = @_;
1250		1822
1251	# we have to keep some variables in memory intact	1823	# we have to keep some variables in memory intact
1252	local $self->{path};	1824	local $self->{path};
1253	local $self->{load_path};	1825	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1826
1257	$self->SUPER::thawer_merge ($merge);	1827	$self->SUPER::thawer_merge ($merge);
1258	}	1828	}
1259		1829
1260	sub normalise {	1830	sub normalise {
…		…
1307	$self->init; # pass $1 etc.	1877	$self->init; # pass $1 etc.
1308	return $self;	1878	return $self;
1309	}	1879	}
1310	}	1880	}
1311		1881
1312	Carp::carp "unable to resolve path '$path' (base '$base').";	1882	Carp::cluck "unable to resolve path '$path' (base '$base').";
1313	()	1883	()
1314	}	1884	}
1315		1885
1316	sub init {	1886	sub init {
1317	my ($self) = @_;	1887	my ($self) = @_;
…		…
1332		1902
1333	# the original (read-only) location	1903	# the original (read-only) location
1334	sub load_path {	1904	sub load_path {
1335	my ($self) = @_;	1905	my ($self) = @_;
1336		1906
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1907	"$MAPDIR/$self->{path}.map"
1338	}	1908	}
1339		1909
1340	# the temporary/swap location	1910	# the temporary/swap location
1341	sub save_path {	1911	sub save_path {
1342	my ($self) = @_;	1912	my ($self) = @_;
1343		1913
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1914	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1915	"$TMPDIR/$path.map"
1346	}	1916	}
1347		1917
1348	# the unique path, undef == no special unique path	1918	# the unique path, undef == no special unique path
1349	sub uniq_path {	1919	sub uniq_path {
1350	my ($self) = @_;	1920	my ($self) = @_;
1351		1921
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1922	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1923	"$UNIQUEDIR/$path"
1354	}	1924	}
1355		1925
1356	# and all this just because we cannot iterate over	1926	# and all this just because we cannot iterate over
1357	# all maps in C++...	1927	# all maps in C++...
1358	sub change_all_map_light {	1928	sub change_all_map_light {
…		…
1360		1930
1361	$_->change_map_light ($change)	1931	$_->change_map_light ($change)
1362	for grep $_->outdoor, values %cf::MAP;	1932	for grep $_->outdoor, values %cf::MAP;
1363	}	1933	}
1364		1934
		1935	sub decay_objects {
		1936	my ($self) = @_;
		1937
		1938	return if $self->{deny_reset};
		1939
		1940	$self->do_decay_objects;
		1941	}
		1942
1365	sub unlink_save {	1943	sub unlink_save {
1366	my ($self) = @_;	1944	my ($self) = @_;
1367		1945
1368	utf8::encode (my $save = $self->save_path);	1946	utf8::encode (my $save = $self->save_path);
1369	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1947	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1372		1950
1373	sub load_header_from($) {	1951	sub load_header_from($) {
1374	my ($self, $path) = @_;	1952	my ($self, $path) = @_;
1375		1953
1376	utf8::encode $path;	1954	utf8::encode $path;
1377	#aio_open $path, O_RDONLY, 0	1955	my $f = new_from_file cf::object::thawer $path
1378	# or return;
1379
1380	$self->_load_header ($path)
1381	or return;	1956	or return;
		1957
		1958	$self->_load_header ($f)
		1959	or return;
		1960
		1961	local $MAP_LOADING{$self->{path}} = $self;
		1962	$f->resolve_delayed_derefs;
1382		1963
1383	$self->{load_path} = $path;	1964	$self->{load_path} = $path;
1384		1965
1385	1	1966	1
1386	}	1967	}
…		…
1425	$self->load_header_orig	2006	$self->load_header_orig
1426	or return;	2007	or return;
1427	$self->prepare_orig;	2008	$self->prepare_orig;
1428	}	2009	}
1429		2010
		2011	$self->{deny_reset} = 1
		2012	if $self->no_reset;
		2013
1430	$self->default_region (cf::region::find_by_path $self->{path})	2014	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	2015	unless $self->default_region;
1432		2016
1433	1	2017	1
1434	}	2018	}
…		…
1437	sub find {	2021	sub find {
1438	my ($path, $origin) = @_;	2022	my ($path, $origin) = @_;
1439		2023
1440	$path = normalise $path, $origin && $origin->path;	2024	$path = normalise $path, $origin && $origin->path;
1441		2025
		2026	cf::lock_wait "map_data:$path";#d#remove
1442	cf::lock_wait "map_find:$path";	2027	cf::lock_wait "map_find:$path";
1443		2028
1444	$cf::MAP{$path} || do {	2029	$cf::MAP{$path} || do {
1445	my $guard = cf::lock_acquire "map_find:$path";	2030	my $guard1 = cf::lock_acquire "map_find:$path";
		2031	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		2032
1446	my $map = new_from_path cf::map $path	2033	my $map = new_from_path cf::map $path
1447	or return;	2034	or return;
1448		2035
1449	$map->{last_save} = $cf::RUNTIME;	2036	$map->{last_save} = $cf::RUNTIME;
1450		2037
1451	$map->load_header	2038	$map->load_header
1452	or return;	2039	or return;
1453		2040
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2041	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	2042	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	2043	#$cf::WAIT_FOR_TICK->wait;
		2044	undef $guard1;
		2045	undef $guard2;
1457	$map->reset;	2046	$map->reset;
1458	undef $guard;
1459	return find $path;	2047	return find $path;
1460	}	2048	}
1461		2049
1462	$cf::MAP{$path} = $map	2050	$cf::MAP{$path} = $map
1463	}	2051	}
…		…
1470	my ($self) = @_;	2058	my ($self) = @_;
1471		2059
1472	local $self->{deny_reset} = 1; # loading can take a long time	2060	local $self->{deny_reset} = 1; # loading can take a long time
1473		2061
1474	my $path = $self->{path};	2062	my $path = $self->{path};
		2063
		2064	{
1475	my $guard = cf::lock_acquire "map_load:$path";	2065	my $guard = cf::lock_acquire "map_data:$path";
1476		2066
		2067	return unless $self->valid;
1477	return if $self->in_memory != cf::MAP_SWAPPED;	2068	return unless $self->in_memory == cf::MAP_SWAPPED;
1478		2069
1479	$self->in_memory (cf::MAP_LOADING);	2070	$self->in_memory (cf::MAP_LOADING);
1480		2071
1481	$self->alloc;	2072	$self->alloc;
1482		2073
1483	$self->pre_load;	2074	$self->pre_load;
1484	Coro::cede;	2075	cf::cede_to_tick;
1485		2076
1486	$self->_load_objects ($self->{load_path}, 1)	2077	my $f = new_from_file cf::object::thawer $self->{load_path};
		2078	$f->skip_block;
		2079	$self->_load_objects ($f)
1487	or return;	2080	or return;
1488		2081
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2082	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1490	if delete $self->{load_original};	2083	if delete $self->{load_original};
1491		2084
1492	if (my $uniq = $self->uniq_path) {	2085	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;	2086	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {	2087	unless (aio_stat $uniq) {
		2088	if (my $f = new_from_file cf::object::thawer $uniq) {
1495	$self->clear_unique_items;	2089	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);	2090	$self->_load_objects ($f);
		2091	$f->resolve_delayed_derefs;
		2092	}
1497	}	2093	}
1498	}	2094	}
1499		2095
1500	Coro::cede;	2096	$f->resolve_delayed_derefs;
		2097
		2098	cf::cede_to_tick;
1501	# now do the right thing for maps	2099	# now do the right thing for maps
1502	$self->link_multipart_objects;	2100	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($self->{deny_activate}) {
1506	$self->decay_objects;
1507	$self->fix_auto_apply;
1508	$self->update_buttons;
1509	Coro::cede;
1510	$self->set_darkness_map;
1511	$self->difficulty ($self->estimate_difficulty)	2101	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	2102	unless $self->difficulty;
1513	Coro::cede;	2103	cf::cede_to_tick;
		2104
		2105	unless ($self->{deny_activate}) {
		2106	$self->decay_objects;
		2107	$self->fix_auto_apply;
		2108	$self->update_buttons;
		2109	cf::cede_to_tick;
		2110	$self->set_darkness_map;
		2111	cf::cede_to_tick;
1514	$self->activate;	2112	$self->activate;
1515	Coro::cede;	2113	}
		2114
		2115	$self->{last_save} = $cf::RUNTIME;
		2116	$self->last_access ($cf::RUNTIME);
		2117
		2118	$self->in_memory (cf::MAP_IN_MEMORY);
1516	}	2119	}
1517		2120
1518	$self->post_load;	2121	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	2122	}
1523		2123
1524	sub customise_for {	2124	sub customise_for {
1525	my ($self, $ob) = @_;	2125	my ($self, $ob) = @_;
1526		2126
1527	return find "~" . $ob->name . "/" . $self->{path}	2127	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	2128	if $self->per_player;
1529		2129
		2130	# return find "?party/" . $ob->name . "/" . $self->{path}
		2131	# if $self->per_party;
		2132
1530	$self	2133	$self
1531	}	2134	}
1532		2135
1533	# find and load all maps in the 3x3 area around a map	2136	# find and load all maps in the 3x3 area around a map
1534	sub load_diag {	2137	sub load_neighbours {
1535	my ($map) = @_;	2138	my ($map) = @_;
1536		2139
1537	my @diag; # diagonal neighbours	2140	my @neigh; # diagonal neighbours
1538		2141
1539	for (0 .. 3) {	2142	for (0 .. 3) {
1540	my $neigh = $map->tile_path ($_)	2143	my $neigh = $map->tile_path ($_)
1541	or next;	2144	or next;
1542	$neigh = find $neigh, $map	2145	$neigh = find $neigh, $map
1543	or next;	2146	or next;
1544	$neigh->load;	2147	$neigh->load;
1545		2148
		2149	push @neigh,
1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2150	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2151	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1548	}	2152	}
1549		2153
1550	for (@diag) {	2154	for (grep defined $_->[0], @neigh) {
		2155	my ($path, $origin) = @$_;
1551	my $neigh = find @$_	2156	my $neigh = find $path, $origin
1552	or next;	2157	or next;
1553	$neigh->load;	2158	$neigh->load;
1554	}	2159	}
1555	}	2160	}
1556		2161
…		…
1561	}	2166	}
1562		2167
1563	sub do_load_sync {	2168	sub do_load_sync {
1564	my ($map) = @_;	2169	my ($map) = @_;
1565		2170
		2171	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2172	if $Coro::current == $Coro::main;
		2173
1566	cf::sync_job { $map->load };	2174	cf::sync_job { $map->load };
1567	}	2175	}
1568		2176
1569	our %MAP_PREFETCH;	2177	our %MAP_PREFETCH;
1570	our $MAP_PREFETCHER = undef;	2178	our $MAP_PREFETCHER = undef;
1571		2179
1572	sub find_async {	2180	sub find_async {
1573	my ($path, $origin) = @_;	2181	my ($path, $origin, $load) = @_;
1574		2182
1575	$path = normalise $path, $origin && $origin->{path};	2183	$path = normalise $path, $origin && $origin->{path};
1576		2184
1577	if (my $map = $cf::MAP{$path}) {	2185	if (my $map = $cf::MAP{$path}) {
1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2186	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1579	}	2187	}
1580		2188
1581	undef $MAP_PREFETCH{$path};	2189	$MAP_PREFETCH{$path} |= $load;
		2190
1582	$MAP_PREFETCHER ||= cf::async {	2191	$MAP_PREFETCHER ||= cf::async {
		2192	$Coro::current->{desc} = "map prefetcher";
		2193
1583	while (%MAP_PREFETCH) {	2194	while (%MAP_PREFETCH) {
1584	for my $path (keys %MAP_PREFETCH) {	2195	while (my ($k, $v) = each %MAP_PREFETCH) {
1585	my $map = find $path	2196	if (my $map = find $k) {
1586	or next;
1587	$map->load;	2197	$map->load if $v;
		2198	}
1588		2199
1589	delete $MAP_PREFETCH{$path};	2200	delete $MAP_PREFETCH{$k};
1590	}	2201	}
1591	}	2202	}
1592	undef $MAP_PREFETCHER;	2203	undef $MAP_PREFETCHER;
1593	};	2204	};
1594	$MAP_PREFETCHER->prio (6);	2205	$MAP_PREFETCHER->prio (6);
…		…
1597	}	2208	}
1598		2209
1599	sub save {	2210	sub save {
1600	my ($self) = @_;	2211	my ($self) = @_;
1601		2212
1602	my $lock = cf::lock_acquire "map_data:" . $self->path;	2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
1603		2214
1604	$self->{last_save} = $cf::RUNTIME;	2215	$self->{last_save} = $cf::RUNTIME;
1605		2216
1606	return unless $self->dirty;	2217	return unless $self->dirty;
1607		2218
…		…
1613	return if $self->{deny_save};	2224	return if $self->{deny_save};
1614		2225
1615	local $self->{last_access} = $self->last_access;#d#	2226	local $self->{last_access} = $self->last_access;#d#
1616		2227
1617	cf::async {	2228	cf::async {
		2229	$Coro::current->{desc} = "map player save";
1618	$_->contr->save for $self->players;	2230	$_->contr->save for $self->players;
1619	};	2231	};
1620		2232
1621	if ($uniq) {	2233	if ($uniq) {
1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2234	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1630	my ($self) = @_;	2242	my ($self) = @_;
1631		2243
1632	# save first because save cedes	2244	# save first because save cedes
1633	$self->save;	2245	$self->save;
1634		2246
1635	my $lock = cf::lock_acquire "map_data:" . $self->path;	2247	my $lock = cf::lock_acquire "map_data:$self->{path}";
1636		2248
1637	return if $self->players;	2249	return if $self->players;
1638	return if $self->in_memory != cf::MAP_IN_MEMORY;	2250	return if $self->in_memory != cf::MAP_IN_MEMORY;
1639	return if $self->{deny_save};	2251	return if $self->{deny_save};
1640		2252
		2253	$self->in_memory (cf::MAP_SWAPPED);
		2254
		2255	$self->deactivate;
		2256	$_->clear_links_to ($self) for values %cf::MAP;
1641	$self->clear;	2257	$self->clear;
1642	$self->in_memory (cf::MAP_SWAPPED);
1643	}	2258	}
1644		2259
1645	sub reset_at {	2260	sub reset_at {
1646	my ($self) = @_;	2261	my ($self) = @_;
1647		2262
1648	# TODO: safety, remove and allow resettable per-player maps	2263	# TODO: safety, remove and allow resettable per-player maps
1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
1650	return 1e99 if $self->{deny_reset};	2264	return 1e99 if $self->{deny_reset};
1651		2265
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2266	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2267	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		2268
…		…
1665	my ($self) = @_;	2279	my ($self) = @_;
1666		2280
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		2282
1669	return if $self->players;	2283	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		2284
1672	warn "resetting map ", $self->path;#d#	2285	warn "resetting map ", $self->path;
1673		2286
1674	$self->in_memory (cf::MAP_SWAPPED);	2287	$self->in_memory (cf::MAP_SWAPPED);
1675		2288
1676	# need to save uniques path	2289	# need to save uniques path
1677	unless ($self->{deny_save}) {	2290	unless ($self->{deny_save}) {
…		…
1681	if $uniq;	2294	if $uniq;
1682	}	2295	}
1683		2296
1684	delete $cf::MAP{$self->path};	2297	delete $cf::MAP{$self->path};
1685		2298
		2299	$self->deactivate;
		2300	$_->clear_links_to ($self) for values %cf::MAP;
1686	$self->clear;	2301	$self->clear;
1687
1688	$_->clear_links_to ($self) for values %cf::MAP;
1689		2302
1690	$self->unlink_save;	2303	$self->unlink_save;
1691	$self->destroy;	2304	$self->destroy;
1692	}	2305	}
1693		2306
1694	my $nuke_counter = "aaaa";	2307	my $nuke_counter = "aaaa";
1695		2308
1696	sub nuke {	2309	sub nuke {
1697	my ($self) = @_;	2310	my ($self) = @_;
1698		2311
		2312	{
		2313	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2314
1699	delete $cf::MAP{$self->path};	2315	delete $cf::MAP{$self->path};
1700		2316
1701	$self->unlink_save;	2317	$self->unlink_save;
1702		2318
1703	bless $self, "cf::map";	2319	bless $self, "cf::map";
1704	delete $self->{deny_reset};	2320	delete $self->{deny_reset};
1705	$self->{deny_save} = 1;	2321	$self->{deny_save} = 1;
1706	$self->reset_timeout (1);	2322	$self->reset_timeout (1);
1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2323	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1708		2324
1709	$cf::MAP{$self->path} = $self;	2325	$cf::MAP{$self->path} = $self;
		2326	}
1710		2327
1711	$self->reset; # polite request, might not happen	2328	$self->reset; # polite request, might not happen
		2329	}
		2330
		2331	=item $maps = cf::map::tmp_maps
		2332
		2333	Returns an arrayref with all map paths of currently instantiated and saved
		2334	maps. May block.
		2335
		2336	=cut
		2337
		2338	sub tmp_maps() {
		2339	[
		2340	map {
		2341	utf8::decode $_;
		2342	/\.map$/
		2343	? normalise $_
		2344	: ()
		2345	} @{ aio_readdir $TMPDIR or [] }
		2346	]
		2347	}
		2348
		2349	=item $maps = cf::map::random_maps
		2350
		2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	random maps. May block.
		2353
		2354	=cut
		2355
		2356	sub random_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise "?random/$_"
		2362	: ()
		2363	} @{ aio_readdir $RANDOMDIR or [] }
		2364	]
1712	}	2365	}
1713		2366
1714	=item cf::map::unique_maps	2367	=item cf::map::unique_maps
1715		2368
1716	Returns an arrayref of paths of all shared maps that have	2369	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2370	instantiated unique items. May block.
1718		2371
1719	=cut	2372	=cut
1720		2373
1721	sub unique_maps() {	2374	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2375	[
1723	or return;	2376	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2377	utf8::decode $_;
1729	next if /\.pst$/;	2378	s/\.map$//; # TODO future compatibility hack
1730	next unless /^$PATH_SEP/o;	2379	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1731		2380	? ()
1732	push @paths, cf::map::normalise $_;	2381	: normalise $_
		2382	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2383	]
1734
1735	\@paths
1736	}	2384	}
1737
1738	package cf;
1739		2385
1740	=back	2386	=back
1741		2387
1742	=head3 cf::object	2388	=head3 cf::object
1743		2389
…		…
1747		2393
1748	=over 4	2394	=over 4
1749		2395
1750	=item $ob->inv_recursive	2396	=item $ob->inv_recursive
1751		2397
1752	Returns the inventory of the object _and_ their inventories, recursively.	2398	Returns the inventory of the object I<and> their inventories, recursively,
		2399	but I<not> the object itself.
1753		2400
1754	=cut	2401	=cut
1755		2402
1756	sub inv_recursive_;	2403	sub inv_recursive_;
1757	sub inv_recursive_ {	2404	sub inv_recursive_ {
1758	map { $_, inv_recursive_ $_->inv } @_	2405	map { $_, inv_recursive_ $_->inv } @_
1759	}	2406	}
1760		2407
1761	sub inv_recursive {	2408	sub inv_recursive {
1762	inv_recursive_ inv $_[0]	2409	inv_recursive_ inv $_[0]
		2410	}
		2411
		2412	=item $ref = $ob->ref
		2413
		2414	Creates and returns a persistent reference to an object that can be stored as a string.
		2415
		2416	=item $ob = cf::object::deref ($refstring)
		2417
		2418	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2419	even if the object actually exists. May block.
		2420
		2421	=cut
		2422
		2423	sub deref {
		2424	my ($ref) = @_;
		2425
		2426	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2427	my ($uuid, $name) = ($1, $2);
		2428	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2429	or return;
		2430	$pl->ob->uuid eq $uuid
		2431	or return;
		2432
		2433	$pl->ob
		2434	} else {
		2435	warn "$ref: cannot resolve object reference\n";
		2436	undef
		2437	}
1763	}	2438	}
1764		2439
1765	package cf;	2440	package cf;
1766		2441
1767	=back	2442	=back
…		…
1786		2461
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2462	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2463
1789	if ($self->{record_replies}) {	2464	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2465	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2466
1791	} else {	2467	} else {
		2468	my $pl = $self->contr;
		2469
		2470	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2471	my $dialog = $pl->{npc_dialog};
		2472	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2473
		2474	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2475	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2476	$self->message ($msg, $flags);
		2477	}
1794	}	2478	}
		2479	}
		2480
		2481	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2482
		2483	=cut
		2484
		2485	sub cf::object::send_msg {
		2486	my $pl = shift->contr
		2487	or return;
		2488	$pl->send_msg (@_);
1795	}	2489	}
1796		2490
1797	=item $player_object->may ("access")	2491	=item $player_object->may ("access")
1798		2492
1799	Returns wether the given player is authorized to access resource "access"	2493	Returns wether the given player is authorized to access resource "access"
…		…
1846	$self->deactivate_recursive;	2540	$self->deactivate_recursive;
1847		2541
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2542	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2543
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2544	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2545	if $self->map && $self->map->{path} ne "{link}";
1852		2546
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2547	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2548	}
1855		2549
1856	sub cf::object::player::leave_link {	2550	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2551	my ($self, $map, $x, $y) = @_;
		2552
		2553	return unless $self->contr->active;
1858		2554
1859	my $link_pos = delete $self->{_link_pos};	2555	my $link_pos = delete $self->{_link_pos};
1860		2556
1861	unless ($map) {	2557	unless ($map) {
1862	# restore original map position	2558	# restore original map position
…		…
1876	# use -1 or undef as default coordinates, not 0, 0	2572	# use -1 or undef as default coordinates, not 0, 0
1877	($x, $y) = ($map->enter_x, $map->enter_y)	2573	($x, $y) = ($map->enter_x, $map->enter_y)
1878	if $x <=0 && $y <= 0;	2574	if $x <=0 && $y <= 0;
1879		2575
1880	$map->load;	2576	$map->load;
1881	$map->load_diag;	2577	$map->load_neighbours;
1882		2578
1883	return unless $self->contr->active;	2579	return unless $self->contr->active;
1884	$self->activate_recursive;	2580	$self->activate_recursive;
1885		2581
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2582	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2583	$self->enter_map ($map, $x, $y);
1888	}	2584	}
1889		2585
1890	cf::player->attach (	2586	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1891	on_logout => sub {
1892	my ($pl) = @_;
1893		2587
1894	# abort map switching before logout	2588	Moves the player to the given map-path and coordinates by first freezing
1895	if ($pl->ob->{_link_pos}) {	2589	her, loading and preparing them map, calling the provided $check callback
1896	cf::sync_job {	2590	that has to return the map if sucecssful, and then unfreezes the player on
1897	$pl->ob->leave_link	2591	the new (success) or old (failed) map position. In either case, $done will
1898	};	2592	be called at the end of this process.
1899	}
1900	},
1901	on_login => sub {
1902	my ($pl) = @_;
1903		2593
1904	# try to abort aborted map switching on player login :)
1905	# should happen only on crashes
1906	if ($pl->ob->{_link_pos}) {
1907	$pl->ob->enter_link;
1908	(async {
1909	$pl->ob->reply (undef,
1910	"There was an internal problem at your last logout, "
1911	. "the server will try to bring you to your intended destination in a second.",
1912	cf::NDI_RED);
1913	# we need this sleep as the login has a concurrent enter_exit running
1914	# and this sleep increases chances of the player not ending up in scorn
1915	Coro::Timer::sleep 1;
1916	$pl->ob->leave_link;
1917	})->prio (2);
1918	}
1919	},
1920	);
1921
1922	=item $player_object->goto ($path, $x, $y)
1923
1924	=cut	2594	=cut
		2595
		2596	our $GOTOGEN;
1925		2597
1926	sub cf::object::player::goto {	2598	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2599	my ($self, $path, $x, $y, $check, $done) = @_;
		2600
		2601	# do generation counting so two concurrent goto's will be executed in-order
		2602	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2603
1929	$self->enter_link;	2604	$self->enter_link;
1930		2605
1931	(async {	2606	(async {
		2607	$Coro::current->{desc} = "player::goto $path $x $y";
		2608
		2609	# *tag paths override both path and x|y
		2610	if ($path =~ /^\*(.*)$/) {
		2611	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2612	my $ob = $obs[rand @obs];
		2613
		2614	# see if we actually can go there
		2615	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2616	$ob = $obs[rand @obs];
		2617	} else {
		2618	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2619	}
		2620	# else put us there anyways for now #d#
		2621
		2622	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2623	} else {
		2624	($path, $x, $y) = (undef, undef, undef);
		2625	}
		2626	}
		2627
1932	my $map = eval {	2628	my $map = eval {
1933	my $map = cf::map::find $path;	2629	my $map = defined $path ? cf::map::find $path : undef;
		2630
		2631	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2632	$map = $map->customise_for ($self);
		2633	$map = $check->($map) if $check && $map;
		2634	} else {
		2635	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2636	}
		2637
1935	$map	2638	$map
		2639	};
		2640
		2641	if ($@) {
		2642	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2643	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2644	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2645
		2646	if ($gen == $self->{_goto_generation}) {
		2647	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2648	$self->leave_link ($map, $x, $y);
		2649	}
		2650
		2651	$done->() if $done;
1940	})->prio (1);	2652	})->prio (1);
1941	}	2653	}
1942		2654
1943	=item $player_object->enter_exit ($exit_object)	2655	=item $player_object->enter_exit ($exit_object)
1944		2656
…		…
1981	$rmp->{origin_y} = $exit->y;	2693	$rmp->{origin_y} = $exit->y;
1982	}	2694	}
1983		2695
1984	$rmp->{random_seed} ||= $exit->random_seed;	2696	$rmp->{random_seed} ||= $exit->random_seed;
1985		2697
1986	my $data = cf::to_json $rmp;	2698	my $data = cf::encode_json $rmp;
1987	my $md5 = Digest::MD5::md5_hex $data;	2699	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2700	my $meta = "$RANDOMDIR/$md5.meta";
1989		2701
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2702	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2703	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2704	undef $fh;
1993	aio_rename "$meta~", $meta;	2705	aio_rename "$meta~", $meta;
…		…
2013	my $hp = $exit->stats->hp;	2725	my $hp = $exit->stats->hp;
2014	my $sp = $exit->stats->sp;	2726	my $sp = $exit->stats->sp;
2015		2727
2016	$self->enter_link;	2728	$self->enter_link;
2017		2729
		2730	# if exit is damned, update players death & WoR home-position
		2731	$self->contr->savebed ($slaying, $hp, $sp)
		2732	if $exit->flag (FLAG_DAMNED);
		2733
2018	(async {	2734	(async {
		2735	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2736
2019	$self->deactivate_recursive; # just to be sure	2737	$self->deactivate_recursive; # just to be sure
2020	unless (eval {	2738	unless (eval {
2021	$self->goto ($slaying, $hp, $sp);	2739	$self->goto ($slaying, $hp, $sp);
2022		2740
2023	1;	2741	1;
…		…
2049		2767
2050	utf8::encode $text;	2768	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2769	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2770	}
2053		2771
		2772	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2773
		2774	Send a drawinfo or msg packet to the client, formatting the msg for the
		2775	client if neccessary. C<$type> should be a string identifying the type of
		2776	the message, with C<log> being the default. If C<$color> is negative, suppress
		2777	the message unless the client supports the msg packet.
		2778
		2779	=cut
		2780
		2781	# non-persistent channels (usually the info channel)
		2782	our %CHANNEL = (
		2783	"c/identify" => {
		2784	id => "infobox",
		2785	title => "Identify",
		2786	reply => undef,
		2787	tooltip => "Items recently identified",
		2788	},
		2789	"c/examine" => {
		2790	id => "infobox",
		2791	title => "Examine",
		2792	reply => undef,
		2793	tooltip => "Signs and other items you examined",
		2794	},
		2795	"c/book" => {
		2796	id => "infobox",
		2797	title => "Book",
		2798	reply => undef,
		2799	tooltip => "The contents of a note or book",
		2800	},
		2801	"c/lookat" => {
		2802	id => "infobox",
		2803	title => "Look",
		2804	reply => undef,
		2805	tooltip => "What you saw there",
		2806	},
		2807	"c/who" => {
		2808	id => "infobox",
		2809	title => "Players",
		2810	reply => undef,
		2811	tooltip => "Shows players who are currently online",
		2812	},
		2813	"c/body" => {
		2814	id => "infobox",
		2815	title => "Body Parts",
		2816	reply => undef,
		2817	tooltip => "Shows which body parts you posess and are available",
		2818	},
		2819	"c/uptime" => {
		2820	id => "infobox",
		2821	title => "Uptime",
		2822	reply => undef,
		2823	tooltip => "How long the server has been running since last restart",
		2824	},
		2825	"c/mapinfo" => {
		2826	id => "infobox",
		2827	title => "Map Info",
		2828	reply => undef,
		2829	tooltip => "Information related to the maps",
		2830	},
		2831	);
		2832
		2833	sub cf::client::send_msg {
		2834	my ($self, $channel, $msg, $color, @extra) = @_;
		2835
		2836	$msg = $self->pl->expand_cfpod ($msg);
		2837
		2838	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2839
		2840	# check predefined channels, for the benefit of C
		2841	if ($CHANNEL{$channel}) {
		2842	$channel = $CHANNEL{$channel};
		2843
		2844	$self->ext_msg (channel_info => $channel)
		2845	if $self->can_msg;
		2846
		2847	$channel = $channel->{id};
		2848
		2849	} elsif (ref $channel) {
		2850	# send meta info to client, if not yet sent
		2851	unless (exists $self->{channel}{$channel->{id}}) {
		2852	$self->{channel}{$channel->{id}} = $channel;
		2853	$self->ext_msg (channel_info => $channel)
		2854	if $self->can_msg;
		2855	}
		2856
		2857	$channel = $channel->{id};
		2858	}
		2859
		2860	return unless @extra || length $msg;
		2861
		2862	if ($self->can_msg) {
		2863	# default colour, mask it out
		2864	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2865	if $color & cf::NDI_DEF;
		2866
		2867	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2868	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2869	} else {
		2870	if ($color >= 0) {
		2871	# replace some tags by gcfclient-compatible ones
		2872	for ($msg) {
		2873	1 while
		2874	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2875	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2876	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2877	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2878	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2879	}
		2880
		2881	$color &= cf::NDI_COLOR_MASK;
		2882
		2883	utf8::encode $msg;
		2884
		2885	if (0 && $msg =~ /\[/) {
		2886	# COMMAND/INFO
		2887	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2888	} else {
		2889	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2890	$self->send_packet ("drawinfo $color $msg")
		2891	}
		2892	}
		2893	}
		2894	}
		2895
2054	=item $client->ext_event ($type, %msg)	2896	=item $client->ext_msg ($type, @msg)
2055		2897
2056	Sends an exti event to the client.	2898	Sends an ext event to the client.
2057		2899
2058	=cut	2900	=cut
2059		2901
2060	sub cf::client::ext_event($$%) {	2902	sub cf::client::ext_msg($$@) {
2061	my ($self, $type, %msg) = @_;	2903	my ($self, $type, @msg) = @_;
2062		2904
		2905	if ($self->extcmd == 2) {
		2906	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2907	} elsif ($self->extcmd == 1) { # TODO: remove
2063	$msg{msgtype} = "event_$type";	2908	push @msg, msgtype => "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	2909	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2910	}
		2911	}
		2912
		2913	=item $client->ext_reply ($msgid, @msg)
		2914
		2915	Sends an ext reply to the client.
		2916
		2917	=cut
		2918
		2919	sub cf::client::ext_reply($$@) {
		2920	my ($self, $id, @msg) = @_;
		2921
		2922	if ($self->extcmd == 2) {
		2923	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2924	} elsif ($self->extcmd == 1) {
		2925	#TODO: version 1, remove
		2926	unshift @msg, msgtype => "reply", msgid => $id;
		2927	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2928	}
2065	}	2929	}
2066		2930
2067	=item $success = $client->query ($flags, "text", \&cb)	2931	=item $success = $client->query ($flags, "text", \&cb)
2068		2932
2069	Queues a query to the client, calling the given callback with	2933	Queues a query to the client, calling the given callback with
2070	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2071	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2935	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		2936
2073	Queries can fail, so check the return code. Or don't, as queries will become	2937	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	2938	become reliable at some point in the future.
2075		2939
2076	=cut	2940	=cut
2077		2941
2078	sub cf::client::query {	2942	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	2943	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	2951	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		2953
2090	$self->send_packet ($self->{query_queue}[0][0])	2954	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	2955	if @{ $self->{query_queue} } == 1;
		2956
		2957	1
2092	}	2958	}
2093		2959
2094	cf::client->attach (	2960	cf::client->attach (
		2961	on_connect => sub {
		2962	my ($ns) = @_;
		2963
		2964	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2965	},
2095	on_reply => sub {	2966	on_reply => sub {
2096	my ($ns, $msg) = @_;	2967	my ($ns, $msg) = @_;
2097		2968
2098	# this weird shuffling is so that direct followup queries	2969	# this weird shuffling is so that direct followup queries
2099	# get handled first	2970	# get handled first
…		…
2111	} else {	2982	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2983	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	2984	}
2114	}	2985	}
2115	},	2986	},
		2987	on_exticmd => sub {
		2988	my ($ns, $buf) = @_;
		2989
		2990	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2991
		2992	if (ref $msg) {
		2993	my ($type, $reply, @payload) =
		2994	"ARRAY" eq ref $msg
		2995	? @$msg
		2996	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2997
		2998	my @reply;
		2999
		3000	if (my $cb = $EXTICMD{$type}) {
		3001	@reply = $cb->($ns, @payload);
		3002	}
		3003
		3004	$ns->ext_reply ($reply, @reply)
		3005	if $reply;
		3006
		3007	} else {
		3008	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3009	}
		3010
		3011	cf::override;
		3012	},
2116	);	3013	);
2117		3014
2118	=item $client->async (\&cb)	3015	=item $client->async (\&cb)
2119		3016
2120	Create a new coroutine, running the specified callback. The coroutine will	3017	Create a new coroutine, running the specified callback. The coroutine will
…		…
2161	our $safe = new Safe "safe";	3058	our $safe = new Safe "safe";
2162	our $safe_hole = new Safe::Hole;	3059	our $safe_hole = new Safe::Hole;
2163		3060
2164	$SIG{FPE} = 'IGNORE';	3061	$SIG{FPE} = 'IGNORE';
2165		3062
2166	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3063	$safe->permit_only (Opcode::opset qw(
		3064	:base_core :base_mem :base_orig :base_math
		3065	grepstart grepwhile mapstart mapwhile
		3066	sort time
		3067	));
2167		3068
2168	# here we export the classes and methods available to script code	3069	# here we export the classes and methods available to script code
2169		3070
2170	=pod	3071	=pod
2171		3072
2172	The following functions and methods are available within a safe environment:	3073	The following functions and methods are available within a safe environment:
2173		3074
2174	cf::object contr pay_amount pay_player map	3075	cf::object
		3076	contr pay_amount pay_player map x y force_find force_add destroy
		3077	insert remove name archname title slaying race decrease_ob_nr
		3078
2175	cf::object::player player	3079	cf::object::player
2176	cf::player peaceful	3080	player
2177	cf::map trigger	3081
		3082	cf::player
		3083	peaceful
		3084
		3085	cf::map
		3086	trigger
2178		3087
2179	=cut	3088	=cut
2180		3089
2181	for (	3090	for (
2182	["cf::object" => qw(contr pay_amount pay_player map)],	3091	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3092	insert remove inv name archname title slaying race
		3093	decrease_ob_nr destroy)],
2183	["cf::object::player" => qw(player)],	3094	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	3095	["cf::player" => qw(peaceful)],
2185	["cf::map" => qw(trigger)],	3096	["cf::map" => qw(trigger)],
2186	) {	3097	) {
2187	no strict 'refs';	3098	no strict 'refs';
…		…
2258	=back	3169	=back
2259		3170
2260	=cut	3171	=cut
2261		3172
2262	#############################################################################	3173	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$family> should best start with the name of the extension
2271	using it, it should be unique.
2272
2273	=over 4
2274
2275	=item $value = cf::db_get $family => $key
2276
2277	Returns a single value from the database.
2278
2279	=item cf::db_put $family => $key => $value
2280
2281	Stores the given C<$value> in the family.
2282
2283	=cut
2284
2285	our $DB;
2286
2287	sub db_init {
2288	unless ($DB) {
2289	$DB = BDB::db_create $DB_ENV;
2290
2291	cf::sync_job {
2292	eval {
2293	$DB->set_flags (BDB::CHKSUM);
2294
2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2297	cf::cleanup "db_open(db): $!" if $!;
2298	};
2299	cf::cleanup "db_open(db): $@" if $@;
2300	};
2301
2302	my $path = cf::localdir . "/database.pst";
2303	if (stat $path) {
2304	cf::sync_job {
2305	my $pst = Storable::retrieve $path;
2306
2307	cf::db_put (board => data => $pst->{board});
2308	cf::db_put (guildrules => data => $pst->{guildrules});
2309	cf::db_put (rent => balance => $pst->{rent}{balance});
2310	BDB::db_env_txn_checkpoint $DB_ENV;
2311
2312	unlink $path;
2313	};
2314	}
2315	}
2316	}
2317
2318	sub db_get($$) {
2319	my $key = "$_[0]/$_[1]";
2320
2321	cf::sync_job {
2322	BDB::db_get $DB, undef, $key, my $data;
2323
2324	$! ? ()
2325	: Compress::LZF::sthaw $data
2326	}
2327	}
2328
2329	sub db_put($$$) {
2330	BDB::dbreq_pri 4;
2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2332	}
2333
2334	#############################################################################
2335	# the server's init and main functions	3174	# the server's init and main functions
2336		3175
2337	sub load_facedata {	3176	sub load_facedata($) {
2338	my $path = sprintf "%s/facedata", cf::datadir;	3177	my ($path) = @_;
		3178
		3179	# HACK to clear player env face cache, we need some signal framework
		3180	# for this (global event?)
		3181	%ext::player_env::MUSIC_FACE_CACHE = ();
		3182
		3183	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2339		3184
2340	warn "loading facedata from $path\n";	3185	warn "loading facedata from $path\n";
2341		3186
2342	my $facedata;	3187	my $facedata;
2343	0 < aio_load $path, $facedata	3188	0 < aio_load $path, $facedata
…		…
2346	$facedata = Coro::Storable::thaw $facedata;	3191	$facedata = Coro::Storable::thaw $facedata;
2347		3192
2348	$facedata->{version} == 2	3193	$facedata->{version} == 2
2349	or cf::cleanup "$path: version mismatch, cannot proceed.";	3194	or cf::cleanup "$path: version mismatch, cannot proceed.";
2350		3195
		3196	# patch in the exptable
		3197	$facedata->{resource}{"res/exp_table"} = {
		3198	type => FT_RSRC,
		3199	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3200	};
		3201	cf::cede_to_tick;
		3202
2351	{	3203	{
2352	my $faces = $facedata->{faceinfo};	3204	my $faces = $facedata->{faceinfo};
2353		3205
2354	while (my ($face, $info) = each %$faces) {	3206	while (my ($face, $info) = each %$faces) {
2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3207	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3208
2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3209	cf::face::set_visibility $idx, $info->{visibility};
		3210	cf::face::set_magicmap $idx, $info->{magicmap};
2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3211	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3212	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2359	Coro::cede;	3213
		3214	cf::cede_to_tick;
2360	}	3215	}
2361		3216
2362	while (my ($face, $info) = each %$faces) {	3217	while (my ($face, $info) = each %$faces) {
2363	next unless $info->{smooth};	3218	next unless $info->{smooth};
		3219
2364	my $idx = cf::face::find $face	3220	my $idx = cf::face::find $face
2365	or next;	3221	or next;
		3222
2366	if (my $smooth = cf::face::find $info->{smooth}) {	3223	if (my $smooth = cf::face::find $info->{smooth}) {
		3224	cf::face::set_smooth $idx, $smooth;
2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3225	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2368	} else {	3226	} else {
2369	warn "smooth face '$info->{smooth}' not found for face '$face'";	3227	warn "smooth face '$info->{smooth}' not found for face '$face'";
2370	}	3228	}
2371	Coro::cede;	3229
		3230	cf::cede_to_tick;
2372	}	3231	}
2373	}	3232	}
2374		3233
2375	{	3234	{
2376	my $anims = $facedata->{animinfo};	3235	my $anims = $facedata->{animinfo};
2377		3236
2378	while (my ($anim, $info) = each %$anims) {	3237	while (my ($anim, $info) = each %$anims) {
2379	cf::anim::set $anim, $info->{frames}, $info->{facings};	3238	cf::anim::set $anim, $info->{frames}, $info->{facings};
2380	Coro::cede;	3239	cf::cede_to_tick;
2381	}	3240	}
2382		3241
2383	cf::anim::invalidate_all; # d'oh	3242	cf::anim::invalidate_all; # d'oh
2384	}	3243	}
2385		3244
		3245	{
		3246	# TODO: for gcfclient pleasure, we should give resources
		3247	# that gcfclient doesn't grok a >10000 face index.
		3248	my $res = $facedata->{resource};
		3249
		3250	while (my ($name, $info) = each %$res) {
		3251	if (defined $info->{type}) {
		3252	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3253	my $data;
		3254
		3255	if ($info->{type} & 1) {
		3256	# prepend meta info
		3257
		3258	my $meta = $enc->encode ({
		3259	name => $name,
		3260	%{ $info->{meta} || {} },
		3261	});
		3262
		3263	$data = pack "(w/a*)*", $meta, $info->{data};
		3264	} else {
		3265	$data = $info->{data};
		3266	}
		3267
		3268	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3269	cf::face::set_type $idx, $info->{type};
		3270	} else {
		3271	$RESOURCE{$name} = $info;
		3272	}
		3273
		3274	cf::cede_to_tick;
		3275	}
		3276	}
		3277
		3278	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3279
2386	1	3280	1
2387	}	3281	}
2388		3282
		3283	cf::global->attach (on_resource_update => sub {
		3284	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3285	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3286
		3287	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3288	my $sound = $soundconf->{compat}[$_]
		3289	or next;
		3290
		3291	my $face = cf::face::find "sound/$sound->[1]";
		3292	cf::sound::set $sound->[0] => $face;
		3293	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3294	}
		3295
		3296	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3297	my $face = cf::face::find "sound/$v";
		3298	cf::sound::set $k => $face;
		3299	}
		3300	}
		3301	});
		3302
		3303	register_exticmd fx_want => sub {
		3304	my ($ns, $want) = @_;
		3305
		3306	while (my ($k, $v) = each %$want) {
		3307	$ns->fx_want ($k, $v);
		3308	}
		3309	};
		3310
		3311	sub reload_regions {
		3312	# HACK to clear player env face cache, we need some signal framework
		3313	# for this (global event?)
		3314	%ext::player_env::MUSIC_FACE_CACHE = ();
		3315
		3316	load_resource_file "$MAPDIR/regions"
		3317	or die "unable to load regions file\n";
		3318
		3319	for (cf::region::list) {
		3320	$_->{match} = qr/$_->{match}/
		3321	if exists $_->{match};
		3322	}
		3323	}
		3324
		3325	sub reload_facedata {
		3326	load_facedata "$DATADIR/facedata"
		3327	or die "unable to load facedata\n";
		3328	}
		3329
2389	sub load_archetypes {	3330	sub reload_archetypes {
2390	load_archetype_file sprintf "%s/archetypes", cf::datadir; # remove when stable	3331	load_resource_file "$DATADIR/archetypes"
2391	load_archetype_file sprintf "%s/archetypes", cf::datadir	3332	or die "unable to load archetypes\n";
		3333	#d# NEED to laod twice to resolve forward references
		3334	# this really needs to be done in an extra post-pass
		3335	# (which needs to be synchronous, so solve it differently)
		3336	load_resource_file "$DATADIR/archetypes"
		3337	or die "unable to load archetypes\n";
2392	}	3338	}
2393		3339
2394	sub load_treasures {	3340	sub reload_treasures {
2395	load_treasure_file sprintf "%s/treasures", cf::datadir	3341	load_resource_file "$DATADIR/treasures"
		3342	or die "unable to load treasurelists\n";
2396	}	3343	}
2397		3344
2398	sub reload_resources {	3345	sub reload_resources {
2399	warn "reloading resource files...\n";	3346	warn "reloading resource files...\n";
2400		3347
2401	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3348	reload_regions;
2402	or die "unable to load regions file\n";
2403	load_facedata	3349	reload_facedata;
2404	or die "unable to load facedata\n";	3350	#reload_archetypes;#d#
2405	load_archetypes	3351	reload_archetypes;
2406	or die "unable to load archetypes\n";
2407	load_treasures	3352	reload_treasures;
2408	or die "unable to load treasurelists\n";
2409		3353
2410	warn "finished reloading resource files\n";	3354	warn "finished reloading resource files\n";
2411	}	3355	}
2412		3356
2413	sub init {	3357	sub init {
2414	reload_resources;	3358	reload_resources;
2415	}	3359	}
2416		3360
2417	sub cfg_load {	3361	sub reload_config {
2418	open my $fh, "<:utf8", cf::confdir . "/config"	3362	open my $fh, "<:utf8", "$CONFDIR/config"
2419	or return;	3363	or return;
2420		3364
2421	local $/;	3365	local $/;
2422	*CFG = YAML::Syck::Load <$fh>;	3366	*CFG = YAML::Load <$fh>;
2423		3367
2424	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3368	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2425		3369
2426	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3370	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2427	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3371	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2438	sub main {	3382	sub main {
2439	# we must not ever block the main coroutine	3383	# we must not ever block the main coroutine
2440	local $Coro::idle = sub {	3384	local $Coro::idle = sub {
2441	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3385	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2442	(async {	3386	(async {
2443	Event::one_event;	3387	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3388	EV::loop EV::LOOP_ONESHOT;
2444	})->prio (Coro::PRIO_MAX);	3389	})->prio (Coro::PRIO_MAX);
2445	};	3390	};
2446		3391
2447	cfg_load;	3392	reload_config;
2448	db_init;	3393	db_init;
2449	load_extensions;	3394	load_extensions;
2450		3395
2451	$TICK_WATCHER->start;	3396	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3397	evthread_start IO::AIO::poll_fileno;
2452	Event::loop;	3398	EV::loop;
2453	}	3399	}
2454		3400
2455	#############################################################################	3401	#############################################################################
2456	# initialisation and cleanup	3402	# initialisation and cleanup
2457		3403
2458	# install some emergency cleanup handlers	3404	# install some emergency cleanup handlers
2459	BEGIN {	3405	BEGIN {
		3406	our %SIGWATCHER = ();
2460	for my $signal (qw(INT HUP TERM)) {	3407	for my $signal (qw(INT HUP TERM)) {
2461	Event->signal (	3408	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2462	reentrant => 0,
2463	data => WF_AUTOCANCEL,
2464	signal => $signal,
2465	prio => 0,
2466	cb => sub {
2467	cf::cleanup "SIG$signal";	3409	cf::cleanup "SIG$signal";
2468	},
2469	);	3410	};
		3411	}
		3412	}
		3413
		3414	sub write_runtime_sync {
		3415	my $runtime = "$LOCALDIR/runtime";
		3416
		3417	# first touch the runtime file to show we are still running:
		3418	# the fsync below can take a very very long time.
		3419
		3420	IO::AIO::aio_utime $runtime, undef, undef;
		3421
		3422	my $guard = cf::lock_acquire "write_runtime";
		3423
		3424	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3425	or return;
		3426
		3427	my $value = $cf::RUNTIME + 90 + 10;
		3428	# 10 is the runtime save interval, for a monotonic clock
		3429	# 60 allows for the watchdog to kill the server.
		3430
		3431	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3432	and return;
		3433
		3434	# always fsync - this file is important
		3435	aio_fsync $fh
		3436	and return;
		3437
		3438	# touch it again to show we are up-to-date
		3439	aio_utime $fh, undef, undef;
		3440
		3441	close $fh
		3442	or return;
		3443
		3444	aio_rename "$runtime~", $runtime
		3445	and return;
		3446
		3447	warn "runtime file written.\n";
		3448
2470	}	3449	1
		3450	}
		3451
		3452	our $uuid_lock;
		3453	our $uuid_skip;
		3454
		3455	sub write_uuid_sync($) {
		3456	$uuid_skip ||= $_[0];
		3457
		3458	return if $uuid_lock;
		3459	local $uuid_lock = 1;
		3460
		3461	my $uuid = "$LOCALDIR/uuid";
		3462
		3463	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3464	or return;
		3465
		3466	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3467	$uuid_skip = 0;
		3468
		3469	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3470	and return;
		3471
		3472	# always fsync - this file is important
		3473	aio_fsync $fh
		3474	and return;
		3475
		3476	close $fh
		3477	or return;
		3478
		3479	aio_rename "$uuid~", $uuid
		3480	and return;
		3481
		3482	warn "uuid file written ($value).\n";
		3483
		3484	1
		3485
		3486	}
		3487
		3488	sub write_uuid($$) {
		3489	my ($skip, $sync) = @_;
		3490
		3491	$sync ? write_uuid_sync $skip
		3492	: async { write_uuid_sync $skip };
2471	}	3493	}
2472		3494
2473	sub emergency_save() {	3495	sub emergency_save() {
2474	my $freeze_guard = cf::freeze_mainloop;	3496	my $freeze_guard = cf::freeze_mainloop;
2475		3497
…		…
2481	# and maps saved/destroyed asynchronously.	3503	# and maps saved/destroyed asynchronously.
2482	warn "begin emergency player save\n";	3504	warn "begin emergency player save\n";
2483	for my $login (keys %cf::PLAYER) {	3505	for my $login (keys %cf::PLAYER) {
2484	my $pl = $cf::PLAYER{$login} or next;	3506	my $pl = $cf::PLAYER{$login} or next;
2485	$pl->valid or next;	3507	$pl->valid or next;
		3508	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2486	$pl->save;	3509	$pl->save;
2487	}	3510	}
2488	warn "end emergency player save\n";	3511	warn "end emergency player save\n";
2489		3512
2490	warn "begin emergency map save\n";	3513	warn "begin emergency map save\n";
…		…
2496	warn "end emergency map save\n";	3519	warn "end emergency map save\n";
2497		3520
2498	warn "begin emergency database checkpoint\n";	3521	warn "begin emergency database checkpoint\n";
2499	BDB::db_env_txn_checkpoint $DB_ENV;	3522	BDB::db_env_txn_checkpoint $DB_ENV;
2500	warn "end emergency database checkpoint\n";	3523	warn "end emergency database checkpoint\n";
		3524
		3525	warn "begin write uuid\n";
		3526	write_uuid_sync 1;
		3527	warn "end write uuid\n";
2501	};	3528	};
2502		3529
2503	warn "leave emergency perl save\n";	3530	warn "leave emergency perl save\n";
2504	}	3531	}
2505		3532
…		…
2508		3535
2509	warn Carp::longmess "post_cleanup backtrace"	3536	warn Carp::longmess "post_cleanup backtrace"
2510	if $make_core;	3537	if $make_core;
2511	}	3538	}
2512		3539
2513	sub reload() {	3540	sub do_reload_perl() {
2514	# can/must only be called in main	3541	# can/must only be called in main
2515	if ($Coro::current != $Coro::main) {	3542	if ($Coro::current != $Coro::main) {
2516	warn "can only reload from main coroutine";	3543	warn "can only reload from main coroutine";
2517	return;	3544	return;
2518	}	3545	}
…		…
2520	warn "reloading...";	3547	warn "reloading...";
2521		3548
2522	warn "entering sync_job";	3549	warn "entering sync_job";
2523		3550
2524	cf::sync_job {	3551	cf::sync_job {
2525	cf::write_runtime; # external watchdog should not bark	3552	cf::write_runtime_sync; # external watchdog should not bark
2526	cf::emergency_save;	3553	cf::emergency_save;
2527	cf::write_runtime; # external watchdog should not bark	3554	cf::write_runtime_sync; # external watchdog should not bark
2528		3555
2529	warn "syncing database to disk";	3556	warn "syncing database to disk";
2530	BDB::db_env_txn_checkpoint $DB_ENV;	3557	BDB::db_env_txn_checkpoint $DB_ENV;
2531		3558
2532	# if anything goes wrong in here, we should simply crash as we already saved	3559	# if anything goes wrong in here, we should simply crash as we already saved
2533
2534	warn "cancelling all WF_AUTOCANCEL watchers";
2535	for (Event::all_watchers) {
2536	$_->cancel if $_->data & WF_AUTOCANCEL;
2537	}
2538		3560
2539	warn "flushing outstanding aio requests";	3561	warn "flushing outstanding aio requests";
2540	for (;;) {	3562	for (;;) {
2541	BDB::flush;	3563	BDB::flush;
2542	IO::AIO::flush;	3564	IO::AIO::flush;
2543	Coro::cede;	3565	Coro::cede_notself;
2544	last unless IO::AIO::nreqs || BDB::nreqs;	3566	last unless IO::AIO::nreqs || BDB::nreqs;
2545	warn "iterate...";	3567	warn "iterate...";
2546	}	3568	}
2547		3569
2548	++$RELOAD;	3570	++$RELOAD;
…		…
2552	%EXT_CORO = ();	3574	%EXT_CORO = ();
2553		3575
2554	warn "removing commands";	3576	warn "removing commands";
2555	%COMMAND = ();	3577	%COMMAND = ();
2556		3578
2557	warn "removing ext commands";	3579	warn "removing ext/exti commands";
2558	%EXTCMD = ();	3580	%EXTCMD = ();
		3581	%EXTICMD = ();
2559		3582
2560	warn "unloading/nuking all extensions";	3583	warn "unloading/nuking all extensions";
2561	for my $pkg (@EXTS) {	3584	for my $pkg (@EXTS) {
2562	warn "... unloading $pkg";	3585	warn "... unloading $pkg";
2563		3586
…		…
2593	Symbol::delete_package "safe::$_"	3616	Symbol::delete_package "safe::$_"
2594	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3617	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2595		3618
2596	warn "unloading cf.pm \"a bit\"";	3619	warn "unloading cf.pm \"a bit\"";
2597	delete $INC{"cf.pm"};	3620	delete $INC{"cf.pm"};
		3621	delete $INC{"cf/pod.pm"};
2598		3622
2599	# don't, removes xs symbols, too,	3623	# don't, removes xs symbols, too,
2600	# and global variables created in xs	3624	# and global variables created in xs
2601	#Symbol::delete_package __PACKAGE__;	3625	#Symbol::delete_package __PACKAGE__;
2602		3626
…		…
2605	warn "reloading cf.pm";	3629	warn "reloading cf.pm";
2606	require cf;	3630	require cf;
2607	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3631	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2608		3632
2609	warn "loading config and database again";	3633	warn "loading config and database again";
2610	cf::cfg_load;	3634	cf::reload_config;
2611		3635
2612	warn "loading extensions";	3636	warn "loading extensions";
2613	cf::load_extensions;	3637	cf::load_extensions;
2614		3638
2615	warn "reattaching attachments to objects/players";	3639	warn "reattaching attachments to objects/players";
…		…
2617	warn "reattaching attachments to maps";	3641	warn "reattaching attachments to maps";
2618	reattach $_ for values %MAP;	3642	reattach $_ for values %MAP;
2619	warn "reattaching attachments to players";	3643	warn "reattaching attachments to players";
2620	reattach $_ for values %PLAYER;	3644	reattach $_ for values %PLAYER;
2621		3645
2622	warn "loading reloadable resources";
2623	reload_resources;
2624
2625	warn "leaving sync_job";	3646	warn "leaving sync_job";
2626		3647
2627	1	3648	1
2628	} or do {	3649	} or do {
2629	warn $@;	3650	warn $@;
2630	warn "error while reloading, exiting.";	3651	cf::cleanup "error while reloading, exiting.";
2631	exit 1;
2632	};	3652	};
2633		3653
2634	warn "reloaded";	3654	warn "reloaded";
2635	};	3655	};
2636		3656
2637	our $RELOAD_WATCHER; # used only during reload	3657	our $RELOAD_WATCHER; # used only during reload
2638		3658
		3659	sub reload_perl() {
		3660	# doing reload synchronously and two reloads happen back-to-back,
		3661	# coro crashes during coro_state_free->destroy here.
		3662
		3663	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3664	do_reload_perl;
		3665	undef $RELOAD_WATCHER;
		3666	};
		3667	}
		3668
2639	register_command "reload" => sub {	3669	register_command "reload" => sub {
2640	my ($who, $arg) = @_;	3670	my ($who, $arg) = @_;
2641		3671
2642	if ($who->flag (FLAG_WIZ)) {	3672	if ($who->flag (FLAG_WIZ)) {
2643	$who->message ("reloading server.");	3673	$who->message ("reloading server.");
2644		3674	async {
2645	# doing reload synchronously and two reloads happen back-to-back,	3675	$Coro::current->{desc} = "perl_reload";
2646	# coro crashes during coro_state_free->destroy here.
2647
2648	$RELOAD_WATCHER ||= Event->timer (
2649	reentrant => 0,
2650	after => 0,
2651	data => WF_AUTOCANCEL,
2652	cb => sub {
2653	reload;	3676	reload_perl;
2654	undef $RELOAD_WATCHER;
2655	},
2656	);	3677	};
2657	}	3678	}
2658	};	3679	};
2659		3680
2660	unshift @INC, $LIBDIR;	3681	unshift @INC, $LIBDIR;
2661		3682
…		…
2663		3684
2664	our @WAIT_FOR_TICK;	3685	our @WAIT_FOR_TICK;
2665	our @WAIT_FOR_TICK_BEGIN;	3686	our @WAIT_FOR_TICK_BEGIN;
2666		3687
2667	sub wait_for_tick {	3688	sub wait_for_tick {
2668	return unless $TICK_WATCHER->is_active;	3689	return if tick_inhibit;
2669	return if $Coro::current == $Coro::main;	3690	return if $Coro::current == $Coro::main;
2670		3691
2671	my $signal = new Coro::Signal;	3692	my $signal = new Coro::Signal;
2672	push @WAIT_FOR_TICK, $signal;	3693	push @WAIT_FOR_TICK, $signal;
2673	$signal->wait;	3694	$signal->wait;
2674	}	3695	}
2675		3696
2676	sub wait_for_tick_begin {	3697	sub wait_for_tick_begin {
2677	return unless $TICK_WATCHER->is_active;	3698	return if tick_inhibit;
2678	return if $Coro::current == $Coro::main;	3699	return if $Coro::current == $Coro::main;
2679		3700
2680	my $signal = new Coro::Signal;	3701	my $signal = new Coro::Signal;
2681	push @WAIT_FOR_TICK_BEGIN, $signal;	3702	push @WAIT_FOR_TICK_BEGIN, $signal;
2682	$signal->wait;	3703	$signal->wait;
2683	}	3704	}
2684		3705
2685	$TICK_WATCHER = Event->timer (	3706	sub tick {
2686	reentrant => 0,
2687	parked => 1,
2688	prio => 0,
2689	at => $NEXT_TICK || $TICK,
2690	data => WF_AUTOCANCEL,
2691	cb => sub {
2692	if ($Coro::current != $Coro::main) {	3707	if ($Coro::current != $Coro::main) {
2693	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3708	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2694	unless ++$bug_warning > 10;	3709	unless ++$bug_warning > 10;
2695	return;	3710	return;
2696	}	3711	}
2697		3712
2698	$NOW = Event::time;
2699
2700	cf::server_tick; # one server iteration	3713	cf::server_tick; # one server iteration
2701		3714
2702	$RUNTIME += $TICK;
2703	$NEXT_TICK += $TICK;
2704
2705	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3715	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2706	$NEXT_RUNTIME_WRITE = $NOW + 10;	3716	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2707	Coro::async_pool {	3717	Coro::async_pool {
		3718	$Coro::current->{desc} = "runtime saver";
2708	write_runtime	3719	write_runtime_sync
2709	or warn "ERROR: unable to write runtime file: $!";	3720	or warn "ERROR: unable to write runtime file: $!";
2710	};
2711	}	3721	};
		3722	}
2712		3723
2713	# my $AFTER = Event::time;
2714	# warn $AFTER - $NOW;#d#
2715
2716	# if we are delayed by four ticks or more, skip them all
2717	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2718
2719	$TICK_WATCHER->at ($NEXT_TICK);
2720	$TICK_WATCHER->start;
2721
2722	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3724	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2723	$sig->send;	3725	$sig->send;
2724	}	3726	}
2725	while (my $sig = shift @WAIT_FOR_TICK) {	3727	while (my $sig = shift @WAIT_FOR_TICK) {
2726	$sig->send;	3728	$sig->send;
2727	}
2728
2729	_post_tick;
2730	},	3729	}
2731	);	3730
		3731	$LOAD = ($NOW - $TICK_START) / $TICK;
		3732	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3733
		3734	if (0) {
		3735	if ($NEXT_TICK) {
		3736	my $jitter = $TICK_START - $NEXT_TICK;
		3737	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3738	warn "jitter $JITTER\n";#d#
		3739	}
		3740	}
		3741	}
2732		3742
2733	{	3743	{
2734	BDB::max_poll_time $TICK * 0.1;	3744	# configure BDB
2735	$BDB_POLL_WATCHER = Event->io (	3745
2736	reentrant => 0,
2737	fd => BDB::poll_fileno,
2738	poll => 'r',
2739	prio => 0,
2740	data => WF_AUTOCANCEL,
2741	cb => \&BDB::poll_cb,
2742	);
2743	BDB::min_parallel 8;	3746	BDB::min_parallel 8;
2744		3747	BDB::max_poll_reqs $TICK * 0.1;
2745	BDB::set_sync_prepare {	3748	$Coro::BDB::WATCHER->priority (1);
2746	my $status;
2747	my $current = $Coro::current;
2748	(
2749	sub {
2750	$status = $!;
2751	$current->ready; undef $current;
2752	},
2753	sub {
2754	Coro::schedule while defined $current;
2755	$! = $status;
2756	},
2757	)
2758	};
2759		3749
2760	unless ($DB_ENV) {	3750	unless ($DB_ENV) {
2761	$DB_ENV = BDB::db_env_create;	3751	$DB_ENV = BDB::db_env_create;
		3752	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3753	| BDB::LOG_AUTOREMOVE, 1);
		3754	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3755	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2762		3756
2763	cf::sync_job {	3757	cf::sync_job {
2764	eval {	3758	eval {
2765	BDB::db_env_open	3759	BDB::db_env_open
2766	$DB_ENV,	3760	$DB_ENV,
2767	$BDB_ENV_DIR,	3761	$BDBDIR,
2768	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3762	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2769	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3763	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2770	0666;	3764	0666;
2771		3765
2772	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3766	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2773
2774	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2775	$DB_ENV->set_lk_detect;
2776	};	3767	};
2777		3768
2778	cf::cleanup "db_env_open(db): $@" if $@;	3769	cf::cleanup "db_env_open(db): $@" if $@;
2779	};	3770	};
2780	}	3771	}
		3772
		3773	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3774	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3775	};
		3776	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3777	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3778	};
		3779	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3780	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3781	};
2781	}	3782	}
2782		3783
2783	{	3784	{
		3785	# configure IO::AIO
		3786
2784	IO::AIO::min_parallel 8;	3787	IO::AIO::min_parallel 8;
2785
2786	undef $Coro::AIO::WATCHER;
2787	IO::AIO::max_poll_time $TICK * 0.1;	3788	IO::AIO::max_poll_time $TICK * 0.1;
2788	$AIO_POLL_WATCHER = Event->io (	3789	$Coro::AIO::WATCHER->priority (1);
2789	reentrant => 0,
2790	data => WF_AUTOCANCEL,
2791	fd => IO::AIO::poll_fileno,
2792	poll => 'r',
2793	prio => 6,
2794	cb => \&IO::AIO::poll_cb,
2795	);
2796	}	3790	}
		3791
		3792	my $_log_backtrace;
		3793
		3794	sub _log_backtrace {
		3795	my ($msg, @addr) = @_;
		3796
		3797	$msg =~ s/\n//;
		3798
		3799	# limit the # of concurrent backtraces
		3800	if ($_log_backtrace < 2) {
		3801	++$_log_backtrace;
		3802	async {
		3803	$Coro::current->{desc} = "abt $msg";
		3804
		3805	my @bt = fork_call {
		3806	@addr = map { sprintf "%x", $_ } @addr;
		3807	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3808	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3809	or die "addr2line: $!";
		3810
		3811	my @funcs;
		3812	my @res = <$fh>;
		3813	chomp for @res;
		3814	while (@res) {
		3815	my ($func, $line) = splice @res, 0, 2, ();
		3816	push @funcs, "[$func] $line";
		3817	}
		3818
		3819	@funcs
		3820	};
		3821
		3822	LOG llevInfo, "[ABT] $msg\n";
		3823	LOG llevInfo, "[ABT] $_\n" for @bt;
		3824	--$_log_backtrace;
		3825	};
		3826	} else {
		3827	LOG llevInfo, "[ABT] $msg\n";
		3828	LOG llevInfo, "[ABT] [suppressed]\n";
		3829	}
		3830	}
		3831
		3832	# load additional modules
		3833	use cf::pod;
2797		3834
2798	END { cf::emergency_save }	3835	END { cf::emergency_save }
2799		3836
2800	1	3837	1
2801		3838

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