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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 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;
		30	use EV 3.2;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro 3.3 ();	36	use Coro 4.50 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::EV;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
18	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
19		47
		48	use JSON::XS 2.01 ();
		49	use BDB ();
		50	use Data::Dumper;
20	use Digest::MD5;	51	use Digest::MD5;
21	use Fcntl;	52	use Fcntl;
		53	use YAML ();
22	use IO::AIO 2.31 ();	54	use IO::AIO 2.51 ();
23	use YAML::Syck ();
24	use Time::HiRes;	55	use Time::HiRes;
		56	use Compress::LZF;
		57	use Digest::MD5 ();
25		58
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	59	# configure various modules to our taste
		60	#
		61	$Storable::canonical = 1; # reduce rsync transfers
		62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;
30
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		66
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		68
35	our %COMMAND = ();	69	our %COMMAND = ();
36	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
		71
		72	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
		75	our %EXT_CORO = (); # coroutines bound to extensions
		76	our %EXT_MAP = (); # pluggable maps
38		77
		78	our $RELOAD; # number of reloads so far
39	our @EVENT;	79	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		80
42	our $TICK = MAX_TIME * 1e-6;	81	our $CONFDIR = confdir;
		82	our $DATADIR = datadir;
		83	our $LIBDIR = "$DATADIR/ext";
		84	our $PODDIR = "$DATADIR/pod";
		85	our $MAPDIR = "$DATADIR/" . mapdir;
		86	our $LOCALDIR = localdir;
		87	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		88	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		89	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		90	our $RANDOMDIR = "$LOCALDIR/random";
		91	our $BDBDIR = "$LOCALDIR/db";
		92	our %RESOURCE;
		93
		94	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	97	our $NEXT_TICK;
45	our $NOW;	98	our $USE_FSYNC = 1; # use fsync to write maps - default off
		99
		100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
		104	our $DB_ENV;
46		105
47	our %CFG;	106	our %CFG;
48		107
49	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
51		111
52	our %MAP; # all maps	112	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	113	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	114	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	115
		116	# used to convert map paths into valid unix filenames by replacing / by ∕
		117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		118
		119	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		120	our $LOADAVG; # same thing, but with alpha-smoothing
		121	our $JITTER; # average jitter
		122	our $TICK_START; # for load detecting purposes
56		123
57	binmode STDOUT;	124	binmode STDOUT;
58	binmode STDERR;	125	binmode STDERR;
59		126
60	# read virtual server time, if available	127	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
65	}	132	}
66		133
67	mkdir cf::localdir;	134	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		136
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
		138
		139	sub cf::map::normalise;
76		140
77	#############################################################################	141	#############################################################################
78		142
79	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
80		144
…		…
87	=item $cf::RUNTIME	151	=item $cf::RUNTIME
88		152
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	153	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	154	every server tick.
91		155
92	=item $cf::LIBDIR	156	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		157	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		158	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		159
94	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	161	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		162	unique-items directory, player file directory, random maps directory and
		163	database environment.
96		164
97	=item $cf::NOW	165	=item $cf::NOW
98		166
99	The time of the last (current) server tick.	167	The time of the last (current) server tick.
100		168
101	=item $cf::TICK	169	=item $cf::TICK
102		170
103	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
104		172
		173	=item $cf::LOADAVG
		174
		175	The current CPU load on the server (alpha-smoothed), as a value between 0
		176	(none) and 1 (overloaded), indicating how much time is spent on processing
		177	objects per tick. Healthy values are < 0.5.
		178
		179	=item $cf::LOAD
		180
		181	The raw value load value from the last tick.
		182
105	=item %cf::CFG	183	=item %cf::CFG
106		184
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	186	from wherever your confdir points to.
		187
		188	=item cf::wait_for_tick, cf::wait_for_tick_begin
		189
		190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		191	returns directly I<after> the tick processing (and consequently, can only wake one process
		192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		193
		194	=item @cf::INVOKE_RESULTS
		195
		196	This array contains the results of the last C<invoke ()> call. When
		197	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		198	that call.
109		199
110	=back	200	=back
111		201
112	=cut	202	=cut
113		203
114	BEGIN {	204	BEGIN {
115	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	206	my $msg = join "", @_;
117	utf8::encode $msg;
118		207
119	$msg .= "\n"	208	$msg .= "\n"
120	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
121		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
122	LOG llevError, "cfperl: $msg";	213	LOG llevError, $msg;
123	};	214	};
124	}	215	}
		216
		217	$Coro::State::DIEHOOK = sub {
		218	return unless $^S eq 0; # "eq", not "=="
		219
		220	if ($Coro::current == $Coro::main) {#d#
		221	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		222	return;#d#
		223	}#d#
		224
		225	# kill coroutine otherwise
		226	warn Carp::longmess $_[0];
		227	Coro::terminate
		228	};
		229
		230	$SIG{__DIE__} = sub { }; #d#?
125		231
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	236	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		237	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	238	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		239
133	# we bless all objects into (empty) derived classes to force a method lookup	240	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	241	# within the Safe compartment.
135	for my $pkg (qw(	242	for my $pkg (qw(
136	cf::global cf::attachable	243	cf::global cf::attachable
…		…
141	)) {	248	)) {
142	no strict 'refs';	249	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	251	}
145		252
146	$Event::DIED = sub {	253	$EV::DIED = sub {
147	warn "error in event callback: @_";	254	warn "error in event callback: @_";
148	};	255	};
149		256
150	my %ext_pkg;	257	#############################################################################
151	my @exts;
152	my @hook;
153		258
154	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
155		260
156	=over 4	261	=over 4
157		262
158	=cut	263	=item dumpval $ref
159		264
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	265	=cut
161		266
		267	sub dumpval {
		268	eval {
		269	local $SIG{__DIE__};
		270	my $d;
		271	if (1) {
		272	$d = new Data::Dumper([$_[0]], ["*var"]);
		273	$d->Terse(1);
		274	$d->Indent(2);
		275	$d->Quotekeys(0);
		276	$d->Useqq(1);
		277	#$d->Bless(...);
		278	$d->Seen($_[1]) if @_ > 1;
		279	$d = $d->Dump();
		280	}
		281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		282	$d
		283	} || "[unable to dump $_[0]: '$@']";
		284	}
		285
162	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
163		287
164	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
165		289
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
174		291
175	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
176		293
177	=cut	294	=cut
178		295
179	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
181	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
182	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
183		300
184	=item cf::lock_wait $string	301	=item cf::lock_wait $string
185		302
186	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
187		304
…		…
190	Wait until the given lock is available and then acquires it and returns	307	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	308	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
193	returned.	310	returned.
194		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
195	Lock names should begin with a unique identifier (for example, cf::map::find	315	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
197		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
198	=cut	322	=cut
199		323
200	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
201		326
202	sub lock_wait($) {	327	sub lock_wait($) {
203	my ($key) = @_;	328	my ($key) = @_;
		329
		330	if ($LOCKER{$key} == $Coro::current) {#d#
		331	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		332	return;#d#
		333	}#d#
204		334
205	# wait for lock, if any	335	# wait for lock, if any
206	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	338	Coro::schedule;
…		…
214		344
215	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
216	lock_wait $key;	346	lock_wait $key;
217		347
218	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
219		350
220	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
223	}	355	}
224	}	356	}
225		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
		364	sub freeze_mainloop {
		365	tick_inhibit_inc;
		366
		367	Coro::guard \&tick_inhibit_dec;
		368	}
		369
		370	=item cf::periodic $interval, $cb
		371
		372	Like EV::periodic, but randomly selects a starting point so that the actions
		373	get spread over timer.
		374
		375	=cut
		376
		377	sub periodic($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
		428	}
		429	};
		430
		431	sub get_slot($;$$) {
		432	my ($time, $pri, $name) = @_;
		433
		434	$time = $TICK * .6 if $time > $TICK * .6;
		435	my $sig = new Coro::Signal;
		436
		437	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		438	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		439	$SLOT_QUEUE->ready;
		440	$sig->wait;
		441	}
		442
226	=item cf::async { BLOCK }	443	=item cf::async { BLOCK }
227		444
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	445	Currently the same as Coro::async_pool, meaning you cannot use
229	error instead of exiting the server in case of a problem.	446	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		447	thing you are allowed to do is call C<prio> on it.
230		448
231	=cut	449	=cut
232		450
233	sub async(&) {	451	BEGIN { *async = \&Coro::async_pool }
234	my ($cb) = @_;
235
236	Coro::async {
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}
241
242	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;
244
245	my $guard = Coro::guard { $TICK_WATCHER->start };
246	$TICK_WATCHER->stop;
247	$guard
248	}
249		452
250	=item cf::sync_job { BLOCK }	453	=item cf::sync_job { BLOCK }
251		454
252	The design of crossfire+ requires that the main coro ($Coro::main) is	455	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	456	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
255		459
256	If it must be done, put the blocking parts into C<sync_job>. This will run	460	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	461	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	462	server will be frozen during this time, so the block should either finish
259	fast or be very important.	463	fast or be very important.
…		…
262		466
263	sub sync_job(&) {	467	sub sync_job(&) {
264	my ($job) = @_;	468	my ($job) = @_;
265		469
266	if ($Coro::current == $Coro::main) {	470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
267	# this is the main coro, too bad, we have to block	473	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	474	# till the operation succeeds, freezing the server :/
269		475
270	# TODO: use suspend/resume instead	476	LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	477
272	my $freeze_guard = freeze_mainloop;	478	my $freeze_guard = freeze_mainloop;
273		479
274	my $busy = 1;	480	my $busy = 1;
275	my @res;	481	my @res;
276		482
277	(Coro::async {	483	(async {
		484	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	485	@res = eval { $job->() };
279	warn $@ if $@;	486	warn $@ if $@;
280	undef $busy;	487	undef $busy;
281	})->prio (Coro::PRIO_MAX);	488	})->prio (Coro::PRIO_MAX);
282		489
283	while ($busy) {	490	while ($busy) {
		491	if (Coro::nready) {
284	Coro::cede_notself;	492	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
286	}	495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
287		501
288	wantarray ? @res : $res[0]	502	wantarray ? @res : $res[0]
289	} else {	503	} else {
290	# we are in another coroutine, how wonderful, everything just works	504	# we are in another coroutine, how wonderful, everything just works
291		505
292	$job->()	506	$job->()
293	}	507	}
294	}	508	}
295		509
296	=item $coro = cf::coro { BLOCK }	510	=item $coro = cf::async_ext { BLOCK }
297		511
298	Creates and returns a new coro. This coro is automcatially being canceled	512	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	513	extension calling this is being unloaded.
300		514
301	=cut	515	=cut
302		516
303	sub coro(&) {	517	sub async_ext(&) {
304	my $cb = shift;	518	my $cb = shift;
305		519
306	my $coro = &cf::async ($cb);	520	my $coro = &Coro::async ($cb);
307		521
308	$coro->on_destroy (sub {	522	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	523	delete $EXT_CORO{$coro+0};
310	});	524	});
311	$EXT_CORO{$coro+0} = $coro;	525	$EXT_CORO{$coro+0} = $coro;
312		526
313	$coro	527	$coro
314	}	528	}
315		529
316	sub write_runtime {	530	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		531
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	532	Executes the given code block with the given arguments in a seperate
320	or return;	533	process, returning the results. Everything must be serialisable with
		534	Coro::Storable. May, of course, block. Note that the executed sub may
		535	never block itself or use any form of event handling.
321		536
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	537	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		538
326	aio_fsync $fh	539	sub fork_call(&@) {
327	and return;	540	my ($cb, @args) = @_;
328		541
329	close $fh	542	# we seemingly have to make a local copy of the whole thing,
330	or return;	543	# otherwise perl prematurely frees the stuff :/
		544	# TODO: investigate and fix (likely this will be rather laborious)
331		545
332	aio_rename "$runtime~", $runtime	546	my @res = Coro::Util::fork_eval {
333	and return;	547	reset_signals;
		548	&$cb
		549	}, @args;
334		550
		551	wantarray ? @res : $res[-1]
		552	}
		553
		554	=item $coin = coin_from_name $name
		555
		556	=cut
		557
		558	our %coin_alias = (
		559	"silver" => "silvercoin",
		560	"silvercoin" => "silvercoin",
		561	"silvercoins" => "silvercoin",
		562	"gold" => "goldcoin",
		563	"goldcoin" => "goldcoin",
		564	"goldcoins" => "goldcoin",
		565	"platinum" => "platinacoin",
		566	"platinumcoin" => "platinacoin",
		567	"platinumcoins" => "platinacoin",
		568	"platina" => "platinacoin",
		569	"platinacoin" => "platinacoin",
		570	"platinacoins" => "platinacoin",
		571	"royalty" => "royalty",
		572	"royalties" => "royalty",
		573	);
		574
		575	sub coin_from_name($) {
		576	$coin_alias{$_[0]}
		577	? cf::arch::find $coin_alias{$_[0]}
		578	: undef
		579	}
		580
		581	=item $value = cf::db_get $family => $key
		582
		583	Returns a single value from the environment database.
		584
		585	=item cf::db_put $family => $key => $value
		586
		587	Stores the given C<$value> in the family. It can currently store binary
		588	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		589
		590	=item $db = cf::db_table "name"
		591
		592	Create and/or open a new database table. The string must not be "db" and must be unique
		593	within each server.
		594
		595	=cut
		596
		597	sub db_table($) {
		598	my ($name) = @_;
		599	my $db = BDB::db_create $DB_ENV;
		600
		601	eval {
		602	$db->set_flags (BDB::CHKSUM);
		603
		604	utf8::encode $name;
		605	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		606	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		607	cf::cleanup "db_open(db): $!" if $!;
		608	};
		609	cf::cleanup "db_open(db): $@" if $@;
		610
		611	$db
		612	}
		613
		614	our $DB;
		615
		616	sub db_init {
		617	cf::sync_job {
		618	$DB ||= db_table "db";
		619	};
		620	}
		621
		622	sub db_get($$) {
		623	my $key = "$_[0]/$_[1]";
		624
		625	cf::sync_job {
		626	BDB::db_get $DB, undef, $key, my $data;
		627
		628	$! ? ()
		629	: $data
335	1	630	}
		631	}
		632
		633	sub db_put($$$) {
		634	BDB::dbreq_pri 4;
		635	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		636	}
		637
		638	=item cf::cache $id => [$paths...], $processversion => $process
		639
		640	Generic caching function that returns the value of the resource $id,
		641	caching and regenerating as required.
		642
		643	This function can block.
		644
		645	=cut
		646
		647	sub cache {
		648	my ($id, $src, $processversion, $process) = @_;
		649
		650	my $meta =
		651	join "\x00",
		652	$processversion,
		653	map {
		654	aio_stat $_
		655	and Carp::croak "$_: $!";
		656
		657	($_, (stat _)[7,9])
		658	} @$src;
		659
		660	my $dbmeta = db_get cache => "$id/meta";
		661	if ($dbmeta ne $meta) {
		662	# changed, we may need to process
		663
		664	my @data;
		665	my $md5;
		666
		667	for (0 .. $#$src) {
		668	0 <= aio_load $src->[$_], $data[$_]
		669	or Carp::croak "$src->[$_]: $!";
		670	}
		671
		672	# if processing is expensive, check
		673	# checksum first
		674	if (1) {
		675	$md5 =
		676	join "\x00",
		677	$processversion,
		678	map {
		679	cf::cede_to_tick;
		680	($src->[$_], Digest::MD5::md5_hex $data[$_])
		681	} 0.. $#$src;
		682
		683
		684	my $dbmd5 = db_get cache => "$id/md5";
		685	if ($dbmd5 eq $md5) {
		686	db_put cache => "$id/meta", $meta;
		687
		688	return db_get cache => "$id/data";
		689	}
		690	}
		691
		692	my $t1 = Time::HiRes::time;
		693	my $data = $process->(\@data);
		694	my $t2 = Time::HiRes::time;
		695
		696	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		697
		698	db_put cache => "$id/data", $data;
		699	db_put cache => "$id/md5" , $md5;
		700	db_put cache => "$id/meta", $meta;
		701
		702	return $data;
		703	}
		704
		705	db_get cache => "$id/data"
		706	}
		707
		708	=item cf::datalog type => key => value, ...
		709
		710	Log a datalog packet of the given type with the given key-value pairs.
		711
		712	=cut
		713
		714	sub datalog($@) {
		715	my ($type, %kv) = @_;
		716	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	717	}
337		718
338	=back	719	=back
339		720
340	=cut	721	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		722
462	#############################################################################	723	#############################################################################
463		724
464	=head2 ATTACHABLE OBJECTS	725	=head2 ATTACHABLE OBJECTS
465		726
…		…
467	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")
468	to it. All such attachable objects support the following methods.	729	to it. All such attachable objects support the following methods.
469		730
470	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>
471	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
472	crossfire+).	733	Deliantra).
473		734
474	=over 4	735	=over 4
475		736
476	=item $attachable->attach ($attachment, key => $value...)	737	=item $attachable->attach ($attachment, key => $value...)
477		738
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	852	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	853	our @CB_MAP = ();
593		854
594	my %attachment;	855	my %attachment;
595		856
		857	sub cf::attachable::thawer_merge {
		858	# simply override everything except _meta
		859	local $_[0]{_meta};
		860	%{$_[0]} = %{$_[1]};
		861	}
		862
596	sub _attach_cb($$$$) {	863	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	864	my ($registry, $event, $prio, $cb) = @_;
598		865
599	use sort 'stable';	866	use sort 'stable';
600		867
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	901	$registry = $CB_TYPE[$object_type] ||= [];
635		902
636	} elsif ($type eq "subtype") {	903	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	904	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	905	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	906	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		907
641	} elsif ($type eq "package") {	908	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	909	my $pkg = shift @arg;
643		910
644	while (my ($name, $id) = each %cb_id) {	911	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	940	_attach $registry, $klass, @attach;
674	}	941	}
675		942
676	$obj->{$name} = \%arg;	943	$obj->{$name} = \%arg;
677	} else {	944	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	945	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	946	}
680		947
681	$obj->{_attachment}{$name} = undef;	948	$obj->{_attachment}{$name} = undef;
682	}	949	}
683		950
…		…
685	if (ref $_[0]) {	952	if (ref $_[0]) {
686	_object_attach @_;	953	_object_attach @_;
687	} else {	954	} else {
688	_attach shift->_attach_registry, @_;	955	_attach shift->_attach_registry, @_;
689	}	956	}
		957	_recalc_want;
690	};	958	};
691		959
692	# all those should be optimised	960	# all those should be optimised
693	sub cf::attachable::detach {	961	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	962	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	965	delete $obj->{_attachment}{$name};
698	reattach ($obj);	966	reattach ($obj);
699	} else {	967	} else {
700	Carp::croak "cannot, currently, detach class attachments";	968	Carp::croak "cannot, currently, detach class attachments";
701	}	969	}
		970	_recalc_want;
702	};	971	};
703		972
704	sub cf::attachable::attached {	973	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
706		975
…		…
721	";	990	";
722	die if $@;	991	die if $@;
723	}	992	}
724		993
725	our $override;	994	our $override;
726	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?
727		996
728	sub override {	997	sub override {
729	$override = 1;	998	$override = 1;
730	@invoke_results = ();	999	@INVOKE_RESULTS = (@_);
731	}	1000	}
732		1001
733	sub do_invoke {	1002	sub do_invoke {
734	my $event = shift;	1003	my $event = shift;
735	my $callbacks = shift;	1004	my $callbacks = shift;
736		1005
737	@invoke_results = ();	1006	@INVOKE_RESULTS = ();
738		1007
739	local $override;	1008	local $override;
740		1009
741	for (@$callbacks) {	1010	for (@$callbacks) {
742	eval { &{$_->[1]} };	1011	eval { &{$_->[1]} };
…		…
751	}	1020	}
752		1021
753	0	1022	0
754	}	1023	}
755		1024
756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1025	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
757		1026
758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
759		1028
760	Generate an object-specific event with the given arguments.	1029	Generate an object-specific event with the given arguments.
761		1030
762	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
763	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
764	results (if you must, access C<@cf::invoke_results> directly).	1033	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		1034
766	=back	1035	=back
767		1036
768	=cut	1037	=cut
769		1038
770	#############################################################################	1039	#############################################################################
771	# 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	}
772		1083
773	sub reattach {	1084	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1085	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1086	my ($obj) = @_;
		1087
		1088	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1089
777	my $registry = $obj->registry;	1090	my $registry = $obj->registry;
778		1091
779	@$registry = ();	1092	@$registry = ();
780		1093
…		…
795	cf::attachable->attach (	1108	cf::attachable->attach (
796	prio => -1000000,	1109	prio => -1000000,
797	on_instantiate => sub {	1110	on_instantiate => sub {
798	my ($obj, $data) = @_;	1111	my ($obj, $data) = @_;
799		1112
800	$data = from_json $data;	1113	$data = decode_json $data;
801		1114
802	for (@$data) {	1115	for (@$data) {
803	my ($name, $args) = @$_;	1116	my ($name, $args) = @$_;
804		1117
805	$obj->attach ($name, %{$args || {} });	1118	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1134	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1135	my ($filename, $rdata, $objs) = @_;
823		1136
824	sync_job {	1137	sync_job {
825	if (length $$rdata) {	1138	if (length $$rdata) {
		1139	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1140	warn sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1141	$decname, length $$rdata, scalar @$objs;
828		1142
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1143	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1144	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1145	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	1146	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	1147	close $fh;
834		1148
835	if (@$objs) {	1149	if (@$objs) {
836	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) {
837	chmod SAVE_MODE, $fh;	1151	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1152	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1153	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	1154	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	1155	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1156	aio_rename "$filename.pst~", "$filename.pst";
843	}	1157	}
844	} else {	1158	} else {
845	aio_unlink "$filename.pst";	1159	aio_unlink "$filename.pst";
…		…
851	}	1165	}
852	} else {	1166	} else {
853	aio_unlink $filename;	1167	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1168	aio_unlink "$filename.pst";
855	}	1169	}
856	}	1170	};
857	}	1171	}
858		1172
859	sub object_freezer_as_string {	1173	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1174	my ($rdata, $objs) = @_;
861		1175
…		…
873	or return;	1187	or return;
874		1188
875	unless (aio_stat "$filename.pst") {	1189	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1190	(aio_load "$filename.pst", $av) >= 0
877	or return;	1191	or return;
		1192
878	$av = eval { (Storable::thaw $av)->{objs} };	1193	my $st = eval { Coro::Storable::thaw $av };
		1194	$av = $st->{objs};
879	}	1195	}
880		1196
		1197	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1198	warn sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1199	$decname, length $data, scalar @{$av || []};
		1200
883	return ($data, $av);	1201	($data, $av)
884	}	1202	}
		1203
		1204	=head2 COMMAND CALLBACKS
		1205
		1206	=over 4
		1207
		1208	=cut
885		1209
886	#############################################################################	1210	#############################################################################
887	# command handling &c	1211	# command handling &c
888		1212
889	=item cf::register_command $name => \&callback($ob,$args);	1213	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1226	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1227	}
904		1228
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1229	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1230
907	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.
908		1236
909	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
910	called.	1238	called.
911		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
912	=cut	1251	=cut
913		1252
914	sub register_extcmd {	1253	sub register_extcmd {
915	my ($name, $cb) = @_;	1254	my ($name, $cb) = @_;
916		1255
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1256	$EXTCMD{$name} = $cb;
		1257	}
		1258
		1259	sub register_exticmd {
		1260	my ($name, $cb) = @_;
		1261
		1262	$EXTICMD{$name} = $cb;
921	}	1263	}
922		1264
923	cf::player->attach (	1265	cf::player->attach (
924	on_command => sub {	1266	on_command => sub {
925	my ($pl, $name, $params) = @_;	1267	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1276	cf::override;
935	},	1277	},
936	on_extcmd => sub {	1278	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1279	my ($pl, $buf) = @_;
938		1280
939	my $msg = eval { from_json $buf };	1281	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1282
941	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
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1291	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1292	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1293	}
		1294
		1295	$pl->ext_reply ($reply, @reply)
		1296	if $reply;
		1297
947	} else {	1298	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1299	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1300	}
950		1301
951	cf::override;	1302	cf::override;
952	},	1303	},
953	);	1304	);
954		1305
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1306	sub load_extensions {
		1307	cf::sync_job {
		1308	my %todo;
		1309
		1310	for my $path (<$LIBDIR/*.ext>) {
		1311	next unless -r $path;
		1312
		1313	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1314	my $base = $1;
		1315	my $pkg = $1;
		1316	$pkg =~ s/[^[:word:]]/_/g;
		1317	$pkg = "ext::$pkg";
		1318
		1319	open my $fh, "<:utf8", $path
		1320	or die "$path: $!";
		1321
		1322	my $source = do { local $/; <$fh> };
		1323
		1324	my %ext = (
		1325	path => $path,
		1326	base => $base,
		1327	pkg => $pkg,
		1328	);
		1329
		1330	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1331	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1332
		1333	$ext{source} =
		1334	"package $pkg; use strict; use utf8;\n"
		1335	. "#line 1 \"$path\"\n{\n"
		1336	. $source
		1337	. "\n};\n1";
		1338
		1339	$todo{$base} = \%ext;
		1340	}
		1341
		1342	my %done;
		1343	while (%todo) {
		1344	my $progress;
		1345
		1346	while (my ($k, $v) = each %todo) {
		1347	for (split /,\s*/, $v->{meta}{depends}) {
		1348	goto skip
		1349	unless exists $done{$_};
		1350	}
		1351
		1352	warn "... loading '$k' into '$v->{pkg}'\n";
		1353
		1354	unless (eval $v->{source}) {
		1355	my $msg = $@ ? "$v->{path}: $@\n"
		1356	: "$v->{base}: extension inactive.\n";
		1357
		1358	if (exists $v->{meta}{mandatory}) {
		1359	warn $msg;
		1360	cf::cleanup "mandatory extension failed to load, exiting.";
		1361	}
		1362
		1363	warn $msg;
		1364	}
		1365
		1366	$done{$k} = delete $todo{$k};
		1367	push @EXTS, $v->{pkg};
		1368	$progress = 1;
		1369	}
		1370
		1371	skip:
		1372	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1373	unless $progress;
		1374	}
		1375	};
		1376	}
		1377
		1378	#############################################################################
		1379
		1380	=back
		1381
		1382	=head2 CORE EXTENSIONS
		1383
		1384	Functions and methods that extend core crossfire objects.
		1385
		1386	=cut
		1387
		1388	package cf::player;
		1389
		1390	use Coro::AIO;
		1391
		1392	=head3 cf::player
		1393
		1394	=over 4
		1395
		1396	=item cf::player::num_playing
		1397
		1398	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1399
		1400	=cut
		1401
		1402	sub num_playing {
		1403	scalar grep
		1404	$_->ob->map
		1405	&& !$_->hidden
		1406	&& !$_->ob->flag (cf::FLAG_WIZ),
		1407	cf::player::list
		1408	}
		1409
		1410	=item cf::player::find $login
		1411
		1412	Returns the given player object, loading it if necessary (might block).
		1413
		1414	=cut
		1415
		1416	sub playerdir($) {
		1417	"$PLAYERDIR/"
		1418	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1419	}
		1420
		1421	sub path($) {
		1422	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1423
		1424	(playerdir $login) . "/playerdata"
		1425	}
		1426
		1427	sub find_active($) {
		1428	$cf::PLAYER{$_[0]}
		1429	and $cf::PLAYER{$_[0]}->active
		1430	and $cf::PLAYER{$_[0]}
		1431	}
		1432
		1433	sub exists($) {
		1434	my ($login) = @_;
		1435
		1436	$cf::PLAYER{$login}
		1437	or cf::sync_job { !aio_stat path $login }
		1438	}
		1439
		1440	sub find($) {
		1441	return $cf::PLAYER{$_[0]} || do {
		1442	my $login = $_[0];
		1443
		1444	my $guard = cf::lock_acquire "user_find:$login";
		1445
		1446	$cf::PLAYER{$_[0]} || do {
		1447	# rename old playerfiles to new ones
		1448	#TODO: remove when no longer required
		1449	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1450	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1451	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1452	aio_unlink +(playerdir $login) . "/$login.pl";
		1453
		1454	my $f = new_from_file cf::object::thawer path $login
		1455	or return;
		1456
		1457	my $pl = cf::player::load_pl $f
		1458	or return;
		1459	local $cf::PLAYER_LOADING{$login} = $pl;
		1460	$f->resolve_delayed_derefs;
		1461	$cf::PLAYER{$login} = $pl
		1462	}
		1463	}
		1464	}
		1465
		1466	sub save($) {
		1467	my ($pl) = @_;
		1468
		1469	return if $pl->{deny_save};
		1470
		1471	my $path = path $pl;
		1472	my $guard = cf::lock_acquire "user_save:$path";
		1473
		1474	return if $pl->{deny_save};
		1475
		1476	aio_mkdir playerdir $pl, 0770;
		1477	$pl->{last_save} = $cf::RUNTIME;
		1478
		1479	$pl->save_pl ($path);
		1480	cf::cede_to_tick;
		1481	}
		1482
		1483	sub new($) {
		1484	my ($login) = @_;
		1485
		1486	my $self = create;
		1487
		1488	$self->ob->name ($login);
		1489	$self->{deny_save} = 1;
		1490
		1491	$cf::PLAYER{$login} = $self;
		1492
		1493	$self
		1494	}
		1495
		1496	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1497
		1498	=cut
		1499
		1500	sub send_msg {
		1501	my $ns = shift->ns
		1502	or return;
		1503	$ns->send_msg (@_);
		1504	}
		1505
		1506	=item $pl->quit_character
		1507
		1508	Nukes the player without looking back. If logged in, the connection will
		1509	be destroyed. May block for a long time.
		1510
		1511	=cut
		1512
		1513	sub quit_character {
		1514	my ($pl) = @_;
		1515
		1516	my $name = $pl->ob->name;
		1517
		1518	$pl->{deny_save} = 1;
		1519	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1520
		1521	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1522	$pl->deactivate;
		1523	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1524	$pl->ns->destroy if $pl->ns;
		1525
		1526	my $path = playerdir $pl;
		1527	my $temp = "$path~$cf::RUNTIME~deleting~";
		1528	aio_rename $path, $temp;
		1529	delete $cf::PLAYER{$pl->ob->name};
		1530	$pl->destroy;
		1531
		1532	my $prefix = qr<^~\Q$name\E/>;
		1533
		1534	# nuke player maps
		1535	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1536
		1537	IO::AIO::aio_rmtree $temp;
		1538	}
		1539
		1540	=item $pl->kick
		1541
		1542	Kicks a player out of the game. This destroys the connection.
		1543
		1544	=cut
		1545
		1546	sub kick {
		1547	my ($pl, $kicker) = @_;
		1548
		1549	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1550	$pl->killer ("kicked");
		1551	$pl->ns->destroy;
		1552	}
		1553
		1554	=item cf::player::list_logins
		1555
		1556	Returns am arrayref of all valid playernames in the system, can take a
		1557	while and may block, so not sync_job-capable, ever.
		1558
		1559	=cut
		1560
		1561	sub list_logins {
		1562	my $dirs = aio_readdir $PLAYERDIR
		1563	or return [];
		1564
		1565	my @logins;
		1566
		1567	for my $login (@$dirs) {
		1568	my $path = path $login;
		1569
		1570	# a .pst is a dead give-away for a valid player
		1571	unless (-e "$path.pst") {
		1572	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1573	aio_read $fh, 0, 512, my $buf, 0 or next;
		1574	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1575	}
		1576
		1577	utf8::decode $login;
		1578	push @logins, $login;
		1579	}
		1580
		1581	\@logins
		1582	}
		1583
		1584	=item $player->maps
		1585
		1586	Returns an arrayref of map paths that are private for this
		1587	player. May block.
		1588
		1589	=cut
		1590
		1591	sub maps($) {
		1592	my ($pl) = @_;
		1593
		1594	$pl = ref $pl ? $pl->ob->name : $pl;
		1595
		1596	my $files = aio_readdir playerdir $pl
		1597	or return;
		1598
		1599	my @paths;
		1600
		1601	for (@$files) {
		1602	utf8::decode $_;
		1603	next if /\.(?:pl|pst)$/;
		1604	next unless /^$PATH_SEP/o;
		1605
		1606	push @paths, cf::map::normalise "~$pl/$_";
		1607	}
		1608
		1609	\@paths
		1610	}
		1611
		1612	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1613
		1614	Expand crossfire pod fragments into protocol xml.
		1615
		1616	=cut
		1617
		1618	use re 'eval';
		1619
		1620	my $group;
		1621	my $interior; $interior = qr{
		1622	# match a pod interior sequence sans C<< >>
		1623	(?:
		1624	\ (.*?)\ (?{ $group = $^N })
		1625	| < (??{$interior}) >
		1626	)
		1627	}x;
		1628
		1629	sub expand_cfpod {
		1630	my ($self, $pod) = @_;
		1631
		1632	my $xml;
		1633
		1634	while () {
		1635	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1636	$group = $1;
		1637
		1638	$group =~ s/&/&amp;/g;
		1639	$group =~ s/</&lt;/g;
		1640
		1641	$xml .= $group;
		1642	} elsif ($pod =~ m%\G
		1643	([BCGHITU])
		1644	<
		1645	(?:
		1646	([^<>]*) (?{ $group = $^N })
		1647	| < $interior >
		1648	)
		1649	>
		1650	%gcsx
		1651	) {
		1652	my ($code, $data) = ($1, $group);
		1653
		1654	if ($code eq "B") {
		1655	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1656	} elsif ($code eq "I") {
		1657	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1658	} elsif ($code eq "U") {
		1659	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1660	} elsif ($code eq "C") {
		1661	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1662	} elsif ($code eq "T") {
		1663	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1664	} elsif ($code eq "G") {
		1665	my ($male, $female) = split /\|/, $data;
		1666	$data = $self->gender ? $female : $male;
		1667	$xml .= expand_cfpod ($self, $data);
		1668	} elsif ($code eq "H") {
		1669	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1670	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1671	"")
		1672	[$self->{hintmode}];
		1673	} else {
		1674	$xml .= "error processing '$code($data)' directive";
		1675	}
		1676	} else {
		1677	if ($pod =~ /\G(.+)/) {
		1678	warn "parse error while expanding $pod (at $1)";
		1679	}
		1680	last;
		1681	}
		1682	}
		1683
		1684	for ($xml) {
		1685	# create single paragraphs (very hackish)
		1686	s/(?<=\S)\n(?=\w)/ /g;
		1687
		1688	# compress some whitespace
		1689	s/\s+\n/\n/g; # ws line-ends
		1690	s/\n\n+/\n/g; # double lines
		1691	s/^\n+//; # beginning lines
		1692	s/\n+$//; # ending lines
		1693	}
		1694
		1695	$xml
		1696	}
		1697
		1698	no re 'eval';
		1699
		1700	sub hintmode {
		1701	$_[0]{hintmode} = $_[1] if @_ > 1;
		1702	$_[0]{hintmode}
		1703	}
		1704
		1705	=item $player->ext_reply ($msgid, @msg)
		1706
		1707	Sends an ext reply to the player.
		1708
		1709	=cut
		1710
		1711	sub ext_reply($$@) {
		1712	my ($self, $id, @msg) = @_;
		1713
		1714	$self->ns->ext_reply ($id, @msg)
		1715	}
		1716
		1717	=item $player->ext_msg ($type, @msg)
		1718
		1719	Sends an ext event to the client.
		1720
		1721	=cut
		1722
		1723	sub ext_msg($$@) {
		1724	my ($self, $type, @msg) = @_;
		1725
		1726	$self->ns->ext_msg ($type, @msg);
		1727	}
		1728
		1729	=head3 cf::region
		1730
		1731	=over 4
		1732
		1733	=cut
		1734
		1735	package cf::region;
		1736
		1737	=item cf::region::find_by_path $path
		1738
		1739	Tries to decuce the likely region for a map knowing only its path.
		1740
		1741	=cut
		1742
		1743	sub find_by_path($) {
962	my ($path) = @_;	1744	my ($path) = @_;
963		1745
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1746	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1747
970	warn "loading '$path' into '$pkg'\n";	1748	for my $region (list) {
971		1749	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1750	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1751	if $region->specificity > $specificity;
974		1752	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1753	}
1004		1754
1005	# remove commands	1755	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1756	}
1111		1757
1112	=back	1758	=back
1113
1114		1759
1115	=head3 cf::map	1760	=head3 cf::map
1116		1761
1117	=over 4	1762	=over 4
1118		1763
…		…
1121	package cf::map;	1766	package cf::map;
1122		1767
1123	use Fcntl;	1768	use Fcntl;
1124	use Coro::AIO;	1769	use Coro::AIO;
1125		1770
		1771	use overload
		1772	'""' => \&as_string,
		1773	fallback => 1;
		1774
1126	our $MAX_RESET = 3600;	1775	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1776	our $DEFAULT_RESET = 3000;
1128		1777
1129	sub generate_random_map {	1778	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1779	my ($self, $rmp) = @_;
		1780
		1781	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1131		1782
1132	# mit "rum" bekleckern, nicht	1783	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1784	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1785	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1786	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1787	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1788	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1789	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1790	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1791	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1792	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1793	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1794	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1795	(cf::region::find $rmp->{region}), $rmp->{custom}
		1796	)
		1797	}
		1798
		1799	=item cf::map->register ($regex, $prio)
		1800
		1801	Register a handler for the map path matching the given regex at the
		1802	givne priority (higher is better, built-in handlers have priority 0, the
		1803	default).
		1804
		1805	=cut
		1806
		1807	sub register {
		1808	my (undef, $regex, $prio) = @_;
		1809	my $pkg = caller;
		1810
		1811	no strict;
		1812	push @{"$pkg\::ISA"}, __PACKAGE__;
		1813
		1814	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1815	}
		1816
		1817	# also paths starting with '/'
		1818	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1819
		1820	sub thawer_merge {
		1821	my ($self, $merge) = @_;
		1822
		1823	# we have to keep some variables in memory intact
		1824	local $self->{path};
		1825	local $self->{load_path};
		1826
		1827	$self->SUPER::thawer_merge ($merge);
		1828	}
		1829
		1830	sub normalise {
		1831	my ($path, $base) = @_;
		1832
		1833	$path = "$path"; # make sure its a string
		1834
		1835	$path =~ s/\.map$//;
		1836
		1837	# map plan:
		1838	#
		1839	# /! non-realised random map exit (special hack!)
		1840	# {... are special paths that are not being touched
		1841	# ?xxx/... are special absolute paths
		1842	# ?random/... random maps
		1843	# /... normal maps
		1844	# ~user/... per-player map of a specific user
		1845
		1846	$path =~ s/$PATH_SEP/\//go;
		1847
		1848	# treat it as relative path if it starts with
		1849	# something that looks reasonable
		1850	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1851	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1852
		1853	$base =~ s{[^/]+/?$}{};
		1854	$path = "$base/$path";
		1855	}
		1856
		1857	for ($path) {
		1858	redo if s{//}{/};
		1859	redo if s{/\.?/}{/};
		1860	redo if s{/[^/]+/\.\./}{/};
		1861	}
		1862
		1863	$path
		1864	}
		1865
		1866	sub new_from_path {
		1867	my (undef, $path, $base) = @_;
		1868
		1869	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1870
		1871	$path = normalise $path, $base;
		1872
		1873	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1874	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1875	my $self = bless cf::map::new, $pkg;
		1876	$self->{path} = $path; $self->path ($path);
		1877	$self->init; # pass $1 etc.
		1878	return $self;
		1879	}
		1880	}
		1881
		1882	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1883	()
		1884	}
		1885
		1886	sub init {
		1887	my ($self) = @_;
		1888
		1889	$self
		1890	}
		1891
		1892	sub as_string {
		1893	my ($self) = @_;
		1894
		1895	"$self->{path}"
		1896	}
		1897
		1898	# the displayed name, this is a one way mapping
		1899	sub visible_name {
		1900	&as_string
		1901	}
		1902
		1903	# the original (read-only) location
		1904	sub load_path {
		1905	my ($self) = @_;
		1906
		1907	"$MAPDIR/$self->{path}.map"
		1908	}
		1909
		1910	# the temporary/swap location
		1911	sub save_path {
		1912	my ($self) = @_;
		1913
		1914	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1915	"$TMPDIR/$path.map"
		1916	}
		1917
		1918	# the unique path, undef == no special unique path
		1919	sub uniq_path {
		1920	my ($self) = @_;
		1921
		1922	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1923	"$UNIQUEDIR/$path"
1146	}	1924	}
1147		1925
1148	# and all this just because we cannot iterate over	1926	# and all this just because we cannot iterate over
1149	# all maps in C++...	1927	# all maps in C++...
1150	sub change_all_map_light {	1928	sub change_all_map_light {
…		…
1152		1930
1153	$_->change_map_light ($change)	1931	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1932	for grep $_->outdoor, values %cf::MAP;
1155	}	1933	}
1156		1934
		1935	sub decay_objects {
		1936	my ($self) = @_;
		1937
		1938	return if $self->{deny_reset};
		1939
		1940	$self->do_decay_objects;
		1941	}
		1942
		1943	sub unlink_save {
		1944	my ($self) = @_;
		1945
		1946	utf8::encode (my $save = $self->save_path);
		1947	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1948	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1949	}
		1950
1157	sub try_load_header($) {	1951	sub load_header_from($) {
1158	my ($path) = @_;	1952	my ($self, $path) = @_;
1159		1953
1160	utf8::encode $path;	1954	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1955	my $f = new_from_file cf::object::thawer $path
1162	or return;	1956	or return;
1163		1957
1164	my $map = cf::map::new	1958	$self->_load_header ($f)
1165	or return;	1959	or return;
1166		1960
1167	# for better error messages only, will be overwritten	1961	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	1962	$f->resolve_delayed_derefs;
1169		1963
1170	$map->load_header ($path)	1964	$self->{load_path} = $path;
		1965
		1966	1
		1967	}
		1968
		1969	sub load_header_orig {
		1970	my ($self) = @_;
		1971
		1972	$self->load_header_from ($self->load_path)
		1973	}
		1974
		1975	sub load_header_temp {
		1976	my ($self) = @_;
		1977
		1978	$self->load_header_from ($self->save_path)
		1979	}
		1980
		1981	sub prepare_temp {
		1982	my ($self) = @_;
		1983
		1984	$self->last_access ((delete $self->{last_access})
		1985	|| $cf::RUNTIME); #d#
		1986	# safety
		1987	$self->{instantiate_time} = $cf::RUNTIME
		1988	if $self->{instantiate_time} > $cf::RUNTIME;
		1989	}
		1990
		1991	sub prepare_orig {
		1992	my ($self) = @_;
		1993
		1994	$self->{load_original} = 1;
		1995	$self->{instantiate_time} = $cf::RUNTIME;
		1996	$self->last_access ($cf::RUNTIME);
		1997	$self->instantiate;
		1998	}
		1999
		2000	sub load_header {
		2001	my ($self) = @_;
		2002
		2003	if ($self->load_header_temp) {
		2004	$self->prepare_temp;
		2005	} else {
		2006	$self->load_header_orig
1171	or return;	2007	or return;
		2008	$self->prepare_orig;
		2009	}
1172		2010
1173	$map->{load_path} = $path;	2011	$self->{deny_reset} = 1
		2012	if $self->no_reset;
1174		2013
1175	$map	2014	$self->default_region (cf::region::find_by_path $self->{path})
		2015	unless $self->default_region;
		2016
		2017	1
1176	}	2018	}
1177		2019
1178	sub find;	2020	sub find;
1179	sub find {	2021	sub find {
1180	my ($path, $origin) = @_;	2022	my ($path, $origin) = @_;
1181		2023
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	2024	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		2025
		2026	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	2027	cf::lock_wait "map_find:$path";
1188		2028
1189	$cf::MAP{$key} || do {	2029	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	2030	my $guard1 = cf::lock_acquire "map_find:$path";
		2031	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		2032
1192	# do it the slow way	2033	my $map = new_from_path cf::map $path
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	2034	or return;
1211		2035
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	2036	$map->{last_save} = $cf::RUNTIME;
1224		2037
1225	Coro::cede;	2038	$map->load_header
		2039	or return;
1226		2040
1227	if ($map->should_reset) {	2041	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2042	# doing this can freeze the server in a sync job, obviously
		2043	#$cf::WAIT_FOR_TICK->wait;
		2044	undef $guard1;
		2045	undef $guard2;
1228	$map->reset;	2046	$map->reset;
1229	undef $guard;
1230	$map = find $path	2047	return find $path;
1231	or return;
1232	}	2048	}
1233		2049
1234	$cf::MAP{$key} = $map	2050	$cf::MAP{$path} = $map
1235	}	2051	}
1236	}	2052	}
		2053
		2054	sub pre_load { }
		2055	sub post_load { }
1237		2056
1238	sub load {	2057	sub load {
1239	my ($self) = @_;	2058	my ($self) = @_;
1240		2059
		2060	local $self->{deny_reset} = 1; # loading can take a long time
		2061
1241	my $path = $self->{path};	2062	my $path = $self->{path};
		2063
		2064	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2065	my $guard = cf::lock_acquire "map_data:$path";
1243		2066
		2067	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2068	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		2069
1246	$self->in_memory (cf::MAP_LOADING);	2070	$self->in_memory (cf::MAP_LOADING);
1247		2071
1248	$self->alloc;	2072	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	2073
		2074	$self->pre_load;
		2075	cf::cede_to_tick;
		2076
		2077	my $f = new_from_file cf::object::thawer $self->{load_path};
		2078	$f->skip_block;
		2079	$self->_load_objects ($f)
1250	or return;	2080	or return;
1251		2081
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2082	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	2083	if delete $self->{load_original};
1254		2084
1255	if (my $uniq = $path->uniq_path) {	2085	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2086	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2087	unless (aio_stat $uniq) {
		2088	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2089	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2090	$self->_load_objects ($f);
		2091	$f->resolve_delayed_derefs;
		2092	}
1260	}	2093	}
1261	}	2094	}
1262		2095
1263	Coro::cede;	2096	$f->resolve_delayed_derefs;
1264		2097
		2098	cf::cede_to_tick;
1265	# now do the right thing for maps	2099	# now do the right thing for maps
1266	$self->link_multipart_objects;	2100	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	2101	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	2102	unless $self->difficulty;
		2103	cf::cede_to_tick;
		2104
		2105	unless ($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;
1278	$self->activate;	2112	$self->activate;
1279	}	2113	}
1280		2114
1281	Coro::cede;	2115	$self->{last_save} = $cf::RUNTIME;
		2116	$self->last_access ($cf::RUNTIME);
1282		2117
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2118	$self->in_memory (cf::MAP_IN_MEMORY);
		2119	}
		2120
		2121	$self->post_load;
		2122	}
		2123
		2124	sub customise_for {
		2125	my ($self, $ob) = @_;
		2126
		2127	return find "~" . $ob->name . "/" . $self->{path}
		2128	if $self->per_player;
		2129
		2130	# return find "?party/" . $ob->name . "/" . $self->{path}
		2131	# if $self->per_party;
		2132
		2133	$self
		2134	}
		2135
		2136	# find and load all maps in the 3x3 area around a map
		2137	sub load_neighbours {
		2138	my ($map) = @_;
		2139
		2140	my @neigh; # diagonal neighbours
		2141
		2142	for (0 .. 3) {
		2143	my $neigh = $map->tile_path ($_)
		2144	or next;
		2145	$neigh = find $neigh, $map
		2146	or next;
		2147	$neigh->load;
		2148
		2149	push @neigh,
		2150	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2151	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2152	}
		2153
		2154	for (grep defined $_->[0], @neigh) {
		2155	my ($path, $origin) = @$_;
		2156	my $neigh = find $path, $origin
		2157	or next;
		2158	$neigh->load;
		2159	}
1284	}	2160	}
1285		2161
1286	sub find_sync {	2162	sub find_sync {
1287	my ($path, $origin) = @_;	2163	my ($path, $origin) = @_;
1288		2164
1289	cf::sync_job { cf::map::find $path, $origin }	2165	cf::sync_job { find $path, $origin }
1290	}	2166	}
1291		2167
1292	sub do_load_sync {	2168	sub do_load_sync {
1293	my ($map) = @_;	2169	my ($map) = @_;
1294		2170
		2171	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2172	if $Coro::current == $Coro::main;
		2173
1295	cf::sync_job { $map->load };	2174	cf::sync_job { $map->load };
		2175	}
		2176
		2177	our %MAP_PREFETCH;
		2178	our $MAP_PREFETCHER = undef;
		2179
		2180	sub find_async {
		2181	my ($path, $origin, $load) = @_;
		2182
		2183	$path = normalise $path, $origin && $origin->{path};
		2184
		2185	if (my $map = $cf::MAP{$path}) {
		2186	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2187	}
		2188
		2189	$MAP_PREFETCH{$path} |= $load;
		2190
		2191	$MAP_PREFETCHER ||= cf::async {
		2192	$Coro::current->{desc} = "map prefetcher";
		2193
		2194	while (%MAP_PREFETCH) {
		2195	while (my ($k, $v) = each %MAP_PREFETCH) {
		2196	if (my $map = find $k) {
		2197	$map->load if $v;
		2198	}
		2199
		2200	delete $MAP_PREFETCH{$k};
		2201	}
		2202	}
		2203	undef $MAP_PREFETCHER;
		2204	};
		2205	$MAP_PREFETCHER->prio (6);
		2206
		2207	()
1296	}	2208	}
1297		2209
1298	sub save {	2210	sub save {
1299	my ($self) = @_;	2211	my ($self) = @_;
1300		2212
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2214
1303	$self->{last_save} = $cf::RUNTIME;	2215	$self->{last_save} = $cf::RUNTIME;
1304		2216
1305	return unless $self->dirty;	2217	return unless $self->dirty;
1306		2218
1307	my $save = $self->{path}->save_path; utf8::encode $save;	2219	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2220	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		2221
1310	$self->{load_path} = $save;	2222	$self->{load_path} = $save;
1311		2223
1312	return if $self->{deny_save};	2224	return if $self->{deny_save};
1313		2225
1314	local $self->{last_access} = $self->last_access;#d#	2226	local $self->{last_access} = $self->last_access;#d#
1315		2227
		2228	cf::async {
		2229	$Coro::current->{desc} = "map player save";
		2230	$_->contr->save for $self->players;
		2231	};
		2232
1316	if ($uniq) {	2233	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2234	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2235	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2236	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2237	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2238	}
1322	}	2239	}
1323		2240
1324	sub swap_out {	2241	sub swap_out {
1325	my ($self) = @_;	2242	my ($self) = @_;
1326		2243
1327	# save first because save cedes	2244	# save first because save cedes
1328	$self->save;	2245	$self->save;
1329		2246
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2247	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2248
1332	return if $self->players;	2249	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;	2250	return if $self->in_memory != cf::MAP_IN_MEMORY;
1334	return if $self->{deny_save};	2251	return if $self->{deny_save};
1335		2252
		2253	$self->in_memory (cf::MAP_SWAPPED);
		2254
		2255	$self->deactivate;
		2256	$_->clear_links_to ($self) for values %cf::MAP;
1336	$self->clear;	2257	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2258	}
1339		2259
1340	sub reset_at {	2260	sub reset_at {
1341	my ($self) = @_;	2261	my ($self) = @_;
1342		2262
1343	# TODO: safety, remove and allow resettable per-player maps	2263	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2264	return 1e99 if $self->{deny_reset};
1346		2265
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2266	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2267	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2268
…		…
1354	my ($self) = @_;	2273	my ($self) = @_;
1355		2274
1356	$self->reset_at <= $cf::RUNTIME	2275	$self->reset_at <= $cf::RUNTIME
1357	}	2276	}
1358		2277
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	2278	sub reset {
1381	my ($self) = @_;	2279	my ($self) = @_;
1382		2280
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2282
1385	return if $self->players;	2283	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2284
1388	warn "resetting map ", $self->path;#d#	2285	warn "resetting map ", $self->path;
		2286
		2287	$self->in_memory (cf::MAP_SWAPPED);
		2288
		2289	# need to save uniques path
		2290	unless ($self->{deny_save}) {
		2291	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2292
		2293	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2294	if $uniq;
		2295	}
1389		2296
1390	delete $cf::MAP{$self->path};	2297	delete $cf::MAP{$self->path};
1391		2298
		2299	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2300	$_->clear_links_to ($self) for values %cf::MAP;
		2301	$self->clear;
1393		2302
1394	$self->unlink_save;	2303	$self->unlink_save;
1395	$self->destroy;	2304	$self->destroy;
1396	}	2305	}
1397		2306
1398	my $nuke_counter = "aaaa";	2307	my $nuke_counter = "aaaa";
1399		2308
1400	sub nuke {	2309	sub nuke {
1401	my ($self) = @_;	2310	my ($self) = @_;
1402		2311
		2312	{
		2313	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2314
		2315	delete $cf::MAP{$self->path};
		2316
		2317	$self->unlink_save;
		2318
		2319	bless $self, "cf::map";
		2320	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2321	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2322	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2323	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2324
		2325	$cf::MAP{$self->path} = $self;
		2326	}
		2327
1406	$self->reset; # polite request, might not happen	2328	$self->reset; # polite request, might not happen
1407	}	2329	}
1408		2330
1409	sub customise_for {	2331	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2332
1412	if ($map->per_player) {	2333	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2334	maps. May block.
		2335
		2336	=cut
		2337
		2338	sub tmp_maps() {
1414	}	2339	[
1415		2340	map {
1416	$map	2341	utf8::decode $_;
		2342	/\.map$/
		2343	? normalise $_
		2344	: ()
		2345	} @{ aio_readdir $TMPDIR or [] }
		2346	]
1417	}	2347	}
1418		2348
1419	sub emergency_save {	2349	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2350
1422	warn "enter emergency map save\n";	2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	random maps. May block.
1423		2353
1424	cf::sync_job {	2354	=cut
1425	warn "begin emergency map save\n";	2355
1426	$_->save for values %cf::MAP;	2356	sub random_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise "?random/$_"
		2362	: ()
		2363	} @{ aio_readdir $RANDOMDIR or [] }
		2364	]
		2365	}
		2366
		2367	=item cf::map::unique_maps
		2368
		2369	Returns an arrayref of paths of all shared maps that have
		2370	instantiated unique items. May block.
		2371
		2372	=cut
		2373
		2374	sub unique_maps() {
		2375	[
		2376	map {
		2377	utf8::decode $_;
		2378	s/\.map$//; # TODO future compatibility hack
		2379	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2380	? ()
		2381	: normalise $_
		2382	} @{ aio_readdir $UNIQUEDIR or [] }
		2383	]
		2384	}
		2385
		2386	=back
		2387
		2388	=head3 cf::object
		2389
		2390	=cut
		2391
		2392	package cf::object;
		2393
		2394	=over 4
		2395
		2396	=item $ob->inv_recursive
		2397
		2398	Returns the inventory of the object I<and> their inventories, recursively,
		2399	but I<not> the object itself.
		2400
		2401	=cut
		2402
		2403	sub inv_recursive_;
		2404	sub inv_recursive_ {
		2405	map { $_, inv_recursive_ $_->inv } @_
		2406	}
		2407
		2408	sub inv_recursive {
		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
1427	};	2437	}
1428
1429	warn "end emergency map save\n";
1430	}	2438	}
1431		2439
1432	package cf;	2440	package cf;
1433		2441
1434	=back	2442	=back
1435
1436		2443
1437	=head3 cf::object::player	2444	=head3 cf::object::player
1438		2445
1439	=over 4	2446	=over 4
1440		2447
…		…
1454		2461
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2462	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2463
1457	if ($self->{record_replies}) {	2464	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2465	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2466
1459	} 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 {
1460	$msg = $npc->name . " says: $msg" if $npc;	2475	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2476	$self->message ($msg, $flags);
		2477	}
1462	}	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 (@_);
1463	}	2489	}
1464		2490
1465	=item $player_object->may ("access")	2491	=item $player_object->may ("access")
1466		2492
1467	Returns wether the given player is authorized to access resource "access"	2493	Returns wether the given player is authorized to access resource "access"
…		…
1480		2506
1481	=item $player_object->enter_link	2507	=item $player_object->enter_link
1482		2508
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2509	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2510
1485	The player should be reaosnably safe there for short amounts of time. You	2511	The player should be reasonably safe there for short amounts of time. You
1486	I<MUST> call C<leave_link> as soon as possible, though.	2512	I<MUST> call C<leave_link> as soon as possible, though.
1487		2513
		2514	Will never block.
		2515
1488	=item $player_object->leave_link ($map, $x, $y)	2516	=item $player_object->leave_link ($map, $x, $y)
1489		2517
1490	Moves the player out of the specila link map onto the given map. If the	2518	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2519	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2520	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2521	fails, to the emergency map position.
1494		2522
1495	Might block.	2523	Might block.
1496		2524
1497	=cut	2525	=cut
		2526
		2527	sub link_map {
		2528	unless ($LINK_MAP) {
		2529	$LINK_MAP = cf::map::find "{link}"
		2530	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2531	$LINK_MAP->load;
		2532	}
		2533
		2534	$LINK_MAP
		2535	}
1498		2536
1499	sub cf::object::player::enter_link {	2537	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2538	my ($self) = @_;
1501		2539
1502	$self->deactivate_recursive;	2540	$self->deactivate_recursive;
1503		2541
1504	return if $self->map == $LINK_MAP;	2542	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2543
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2544	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2545	if $self->map && $self->map->{path} ne "{link}";
1508		2546
1509	$self->enter_map ($LINK_MAP, 20, 20);	2547	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	2548	}
1511		2549
1512	sub cf::object::player::leave_link {	2550	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2551	my ($self, $map, $x, $y) = @_;
		2552
		2553	return unless $self->contr->active;
1514		2554
1515	my $link_pos = delete $self->{_link_pos};	2555	my $link_pos = delete $self->{_link_pos};
1516		2556
1517	unless ($map) {	2557	unless ($map) {
1518	# restore original map position	2558	# restore original map position
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	2572	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2573	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2574	if $x <=0 && $y <= 0;
1535		2575
1536	$map->load;	2576	$map->load;
		2577	$map->load_neighbours;
1537		2578
		2579	return unless $self->contr->active;
1538	$self->activate_recursive;	2580	$self->activate_recursive;
		2581
		2582	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	2583	$self->enter_map ($map, $x, $y);
1540	}	2584	}
1541		2585
1542	cf::player->attach (	2586	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1543	on_logout => sub {
1544	my ($pl) = @_;
1545		2587
1546	# abort map switching before logout	2588	Moves the player to the given map-path and coordinates by first freezing
1547	if ($pl->ob->{_link_pos}) {	2589	her, loading and preparing them map, calling the provided $check callback
1548	cf::sync_job {	2590	that has to return the map if sucecssful, and then unfreezes the player on
1549	$pl->ob->leave_link	2591	the new (success) or old (failed) map position. In either case, $done will
1550	};	2592	be called at the end of this process.
1551	}
1552	},
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2593
1556	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569
1570	=item $player_object->goto ($path, $x, $y)
1571
1572	=cut	2594	=cut
		2595
		2596	our $GOTOGEN;
1573		2597
1574	sub cf::object::player::goto {	2598	sub cf::object::player::goto {
1575	my ($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;
1576		2603
1577	$self->enter_link;	2604	$self->enter_link;
1578		2605
1579	(cf::async {	2606	(async {
1580	$path = new cf::path $path;	2607	$Coro::current->{desc} = "player::goto $path $x $y";
1581		2608
1582	my $map = cf::map::find $path->as_string;	2609	# *tag paths override both path and x|y
		2610	if ($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
		2628	my $map = eval {
		2629	my $map = defined $path ? cf::map::find $path : undef;
		2630
		2631	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2632	$map = $map->customise_for ($self);
1584		2633	$map = $check->($map) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2634	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2635	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2636	}
1589		2637
		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 $@;
		2644	}
		2645
		2646	if ($gen == $self->{_goto_generation}) {
		2647	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2648	$self->leave_link ($map, $x, $y);
		2649	}
		2650
		2651	$done->() if $done;
1591	})->prio (1);	2652	})->prio (1);
1592	}	2653	}
1593		2654
1594	=item $player_object->enter_exit ($exit_object)	2655	=item $player_object->enter_exit ($exit_object)
1595		2656
…		…
1597		2658
1598	sub parse_random_map_params {	2659	sub parse_random_map_params {
1599	my ($spec) = @_;	2660	my ($spec) = @_;
1600		2661
1601	my $rmp = { # defaults	2662	my $rmp = { # defaults
1602	xsize => 10,	2663	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2664	ysize => (cf::rndm 15, 40),
		2665	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2666	#layout => string,
1604	};	2667	};
1605		2668
1606	for (split /\n/, $spec) {	2669	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2670	my ($k, $v) = split /\s+/, $_, 2;
1608		2671
…		…
1612	$rmp	2675	$rmp
1613	}	2676	}
1614		2677
1615	sub prepare_random_map {	2678	sub prepare_random_map {
1616	my ($exit) = @_;	2679	my ($exit) = @_;
		2680
		2681	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		2682
1618	# all this does is basically replace the /! path by	2683	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	2684	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	2685	# that depends on the exit object
1621		2686
1622	my $rmp = parse_random_map_params $exit->msg;	2687	my $rmp = parse_random_map_params $exit->msg;
1623		2688
1624	if ($exit->map) {	2689	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2690	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2691	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2692	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2693	$rmp->{origin_y} = $exit->y;
1629	}	2694	}
1630		2695
1631	$rmp->{random_seed} ||= $exit->random_seed;	2696	$rmp->{random_seed} ||= $exit->random_seed;
1632		2697
1633	my $data = cf::to_json $rmp;	2698	my $data = cf::encode_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	2699	my $md5 = Digest::MD5::md5_hex $data;
		2700	my $meta = "$RANDOMDIR/$md5.meta";
1635		2701
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2702	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2703	aio_write $fh, 0, (length $data), $data, 0;
		2704	undef $fh;
		2705	aio_rename "$meta~", $meta;
1638		2706
1639	$exit->slaying ("?random/$md5");	2707	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2708	$exit->msg (undef);
1641	}	2709	}
1642	}	2710	}
…		…
1644	sub cf::object::player::enter_exit {	2712	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2713	my ($self, $exit) = @_;
1646		2714
1647	return unless $self->type == cf::PLAYER;	2715	return unless $self->type == cf::PLAYER;
1648		2716
		2717	if ($exit->slaying eq "/!") {
		2718	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2719	# the problem is that $exit might not survive long enough
		2720	# so it needs to be done right now, right here
		2721	cf::sync_job { prepare_random_map $exit };
		2722	}
		2723
		2724	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2725	my $hp = $exit->stats->hp;
		2726	my $sp = $exit->stats->sp;
		2727
1649	$self->enter_link;	2728	$self->enter_link;
1650		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
1651	(cf::async {	2734	(async {
		2735	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2736
1652	$self->deactivate_recursive; # just to be sure	2737	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	2738	unless (eval {
1654	prepare_random_map $exit	2739	$self->goto ($slaying, $hp, $sp);
1655	if $exit->slaying eq "/!";
1656
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659		2740
1660	1;	2741	1;
1661	}) {	2742	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2743	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "I'll try to bring you back to the map you were before. "	2744	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2745	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2746	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2747
1667	warn "ERROR in enter_exit: $@";	2748	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2749	$self->leave_link;
1669	}	2750	}
1670	})->prio (1);	2751	})->prio (1);
…		…
1683		2764
1684	sub cf::client::send_drawinfo {	2765	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2766	my ($self, $text, $flags) = @_;
1686		2767
1687	utf8::encode $text;	2768	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2769	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2770	}
1690		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
		2896	=item $client->ext_msg ($type, @msg)
		2897
		2898	Sends an ext event to the client.
		2899
		2900	=cut
		2901
		2902	sub cf::client::ext_msg($$@) {
		2903	my ($self, $type, @msg) = @_;
		2904
		2905	if ($self->extcmd == 2) {
		2906	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2907	} elsif ($self->extcmd == 1) { # TODO: remove
		2908	push @msg, msgtype => "event_$type";
		2909	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2910	}
		2911	}
		2912
		2913	=item $client->ext_reply ($msgid, @msg)
		2914
		2915	Sends an ext reply to the client.
		2916
		2917	=cut
		2918
		2919	sub cf::client::ext_reply($$@) {
		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	}
		2929	}
1691		2930
1692	=item $success = $client->query ($flags, "text", \&cb)	2931	=item $success = $client->query ($flags, "text", \&cb)
1693		2932
1694	Queues a query to the client, calling the given callback with	2933	Queues a query to the client, calling the given callback with
1695	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>,
1696	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>.
1697		2936
1698	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
1699	reliable at some point in the future.	2938	become reliable at some point in the future.
1700		2939
1701	=cut	2940	=cut
1702		2941
1703	sub cf::client::query {	2942	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	2943	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	2951	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		2953
1715	$self->send_packet ($self->{query_queue}[0][0])	2954	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	2955	if @{ $self->{query_queue} } == 1;
		2956
		2957	1
1717	}	2958	}
1718		2959
1719	cf::client->attach (	2960	cf::client->attach (
		2961	on_connect => sub {
		2962	my ($ns) = @_;
		2963
		2964	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2965	},
1720	on_reply => sub {	2966	on_reply => sub {
1721	my ($ns, $msg) = @_;	2967	my ($ns, $msg) = @_;
1722		2968
1723	# this weird shuffling is so that direct followup queries	2969	# this weird shuffling is so that direct followup queries
1724	# get handled first	2970	# get handled first
1725	my $queue = delete $ns->{query_queue}	2971	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	2972	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		2973
1728	(shift @$queue)->[1]->($msg);	2974	(shift @$queue)->[1]->($msg);
		2975	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2976
1730	push @{ $ns->{query_queue} }, @$queue;	2977	push @{ $ns->{query_queue} }, @$queue;
1731		2978
1732	if (@{ $ns->{query_queue} } == @$queue) {	2979	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2980	if (@$queue) {
…		…
1735	} else {	2982	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2983	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	2984	}
1738	}	2985	}
1739	},	2986	},
		2987	on_exticmd => sub {
		2988	my ($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	},
1740	);	3013	);
1741		3014
1742	=item $client->coro (\&cb)	3015	=item $client->async (\&cb)
1743		3016
1744	Create a new coroutine, running the specified callback. The coroutine will	3017	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	3018	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	3019	or loss of connection).
1747		3020
1748	=cut	3021	=cut
1749		3022
1750	sub cf::client::coro {	3023	sub cf::client::async {
1751	my ($self, $cb) = @_;	3024	my ($self, $cb) = @_;
1752		3025
1753	my $coro = &cf::async ($cb);	3026	my $coro = &Coro::async ($cb);
1754		3027
1755	$coro->on_destroy (sub {	3028	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	3029	delete $self->{_coro}{$coro+0};
1757	});	3030	});
1758		3031
…		…
1785	our $safe = new Safe "safe";	3058	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	3059	our $safe_hole = new Safe::Hole;
1787		3060
1788	$SIG{FPE} = 'IGNORE';	3061	$SIG{FPE} = 'IGNORE';
1789		3062
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3063	$safe->permit_only (Opcode::opset qw(
		3064	:base_core :base_mem :base_orig :base_math
		3065	grepstart grepwhile mapstart mapwhile
		3066	sort time
		3067	));
1791		3068
1792	# here we export the classes and methods available to script code	3069	# here we export the classes and methods available to script code
1793		3070
1794	=pod	3071	=pod
1795		3072
1796	The following fucntions and emthods are available within a safe environment:	3073	The following functions and methods are available within a safe environment:
1797		3074
1798	cf::object contr pay_amount pay_player map	3075	cf::object
		3076	contr pay_amount pay_player map x y force_find force_add destroy
		3077	insert remove name archname title slaying race decrease_ob_nr
		3078
1799	cf::object::player player	3079	cf::object::player
1800	cf::player peaceful	3080	player
1801	cf::map trigger	3081
		3082	cf::player
		3083	peaceful
		3084
		3085	cf::map
		3086	trigger
1802		3087
1803	=cut	3088	=cut
1804		3089
1805	for (	3090	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	3091	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3092	insert remove inv name archname title slaying race
		3093	decrease_ob_nr destroy)],
1807	["cf::object::player" => qw(player)],	3094	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	3095	["cf::player" => qw(peaceful)],
1809	["cf::map" => qw(trigger)],	3096	["cf::map" => qw(trigger)],
1810	) {	3097	) {
1811	no strict 'refs';	3098	no strict 'refs';
…		…
1882	=back	3169	=back
1883		3170
1884	=cut	3171	=cut
1885		3172
1886	#############################################################################	3173	#############################################################################
		3174	# the server's init and main functions
1887		3175
1888	=head2 EXTENSION DATABASE SUPPORT	3176	sub load_facedata($) {
		3177	my ($path) = @_;
1889		3178
1890	Crossfire maintains a very simple database for extension use. It can	3179	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	3180	# for this (global event?)
1892	excludes objects.	3181	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		3182
1894	The parameter C<$family> should best start with the name of the extension	3183	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		3184
1897	=over 4	3185	warn "loading facedata from $path\n";
1898		3186
1899	=item $hashref = cf::db_get $family	3187	my $facedata;
		3188	0 < aio_load $path, $facedata
		3189	or die "$path: $!";
1900		3190
1901	Return a hashref for use by the extension C<$family>, which can be	3191	$facedata = Coro::Storable::thaw $facedata;
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904		3192
1905	=item $value = cf::db_get $family => $key	3193	$facedata->{version} == 2
		3194	or cf::cleanup "$path: version mismatch, cannot proceed.";
1906		3195
1907	Returns a single value from the database	3196	# patch in the exptable
1908		3197	$facedata->{resource}{"res/exp_table"} = {
1909	=item cf::db_put $family => $hashref	3198	type => FT_RSRC,
1910		3199	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}
1937
1938	my $pid;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	3200	};
		3201	cf::cede_to_tick;
1960		3202
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3203	{
		3204	my $faces = $facedata->{faceinfo};
1965		3205
1966	sub db_get($;$) {	3206	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3207	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971		3208
1972	sub db_put($$;$) {	3209	cf::face::set_visibility $idx, $info->{visibility};
1973	if (@_ >= 3) {	3210	cf::face::set_magicmap $idx, $info->{magicmap};
1974	$DB->{$_[0]}{$_[1]} = $_[2];	3211	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1975	} else {	3212	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980		3213
1981	cf::global->attach (	3214	cf::cede_to_tick;
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3215	}
1986	);
1987	}
1988		3216
1989	#############################################################################	3217	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3218	next unless $info->{smooth};
1991		3219
1992	sub cfg_load {	3220	my $idx = cf::face::find $face
		3221	or next;
		3222
		3223	if (my $smooth = cf::face::find $info->{smooth}) {
		3224	cf::face::set_smooth $idx, $smooth;
		3225	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3226	} else {
		3227	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3228	}
		3229
		3230	cf::cede_to_tick;
		3231	}
		3232	}
		3233
		3234	{
		3235	my $anims = $facedata->{animinfo};
		3236
		3237	while (my ($anim, $info) = each %$anims) {
		3238	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3239	cf::cede_to_tick;
		3240	}
		3241
		3242	cf::anim::invalidate_all; # d'oh
		3243	}
		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
		3280	1
		3281	}
		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
		3330	sub reload_archetypes {
		3331	load_resource_file "$DATADIR/archetypes"
		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";
		3338	}
		3339
		3340	sub reload_treasures {
		3341	load_resource_file "$DATADIR/treasures"
		3342	or die "unable to load treasurelists\n";
		3343	}
		3344
		3345	sub reload_resources {
		3346	warn "reloading resource files...\n";
		3347
		3348	reload_regions;
		3349	reload_facedata;
		3350	#reload_archetypes;#d#
		3351	reload_archetypes;
		3352	reload_treasures;
		3353
		3354	warn "finished reloading resource files\n";
		3355	}
		3356
		3357	sub init {
		3358	reload_resources;
		3359	}
		3360
		3361	sub reload_config {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3362	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	3363	or return;
1995		3364
1996	local $/;	3365	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	3366	*CFG = YAML::Load <$fh>;
1998		3367
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3368	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3369
		3370	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3371	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2000		3372
2001	if (exists $CFG{mlockall}) {	3373	if (exists $CFG{mlockall}) {
2002	eval {	3374	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3375	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3376	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3377	};
2006	warn $@ if $@;	3378	warn $@ if $@;
2007	}	3379	}
2008	}	3380	}
2009		3381
2010	sub main {	3382	sub main {
2011	# we must not ever block the main coroutine	3383	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3384	local $Coro::idle = sub {
2013	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#
2014	(Coro::unblock_sub {	3386	(async {
2015	Event::one_event;	3387	$Coro::current->{desc} = "IDLE BUG HANDLER";
2016	})->();	3388	EV::loop EV::LOOP_ONESHOT;
		3389	})->prio (Coro::PRIO_MAX);
2017	};	3390	};
2018		3391
2019	cfg_load;	3392	reload_config;
2020	db_load;	3393	db_init;
2021	load_extensions;	3394	load_extensions;
		3395
		3396	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3397	evthread_start IO::AIO::poll_fileno;
2022	Event::loop;	3398	EV::loop;
2023	}	3399	}
2024		3400
2025	#############################################################################	3401	#############################################################################
2026	# initialisation	3402	# initialisation and cleanup
2027		3403
		3404	# install some emergency cleanup handlers
		3405	BEGIN {
		3406	our %SIGWATCHER = ();
		3407	for my $signal (qw(INT HUP TERM)) {
		3408	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3409	cf::cleanup "SIG$signal";
		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
		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 };
		3493	}
		3494
		3495	sub emergency_save() {
		3496	my $freeze_guard = cf::freeze_mainloop;
		3497
		3498	warn "enter emergency perl save\n";
		3499
		3500	cf::sync_job {
		3501	# use a peculiar iteration method to avoid tripping on perl
		3502	# refcount bugs in for. also avoids problems with players
		3503	# and maps saved/destroyed asynchronously.
		3504	warn "begin emergency player save\n";
		3505	for my $login (keys %cf::PLAYER) {
		3506	my $pl = $cf::PLAYER{$login} or next;
		3507	$pl->valid or next;
		3508	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3509	$pl->save;
		3510	}
		3511	warn "end emergency player save\n";
		3512
		3513	warn "begin emergency map save\n";
		3514	for my $path (keys %cf::MAP) {
		3515	my $map = $cf::MAP{$path} or next;
		3516	$map->valid or next;
		3517	$map->save;
		3518	}
		3519	warn "end emergency map save\n";
		3520
		3521	warn "begin emergency database checkpoint\n";
		3522	BDB::db_env_txn_checkpoint $DB_ENV;
		3523	warn "end emergency database checkpoint\n";
		3524
		3525	warn "begin write uuid\n";
		3526	write_uuid_sync 1;
		3527	warn "end write uuid\n";
		3528	};
		3529
		3530	warn "leave emergency perl save\n";
		3531	}
		3532
		3533	sub post_cleanup {
		3534	my ($make_core) = @_;
		3535
		3536	warn Carp::longmess "post_cleanup backtrace"
		3537	if $make_core;
		3538	}
		3539
2028	sub reload() {	3540	sub do_reload_perl() {
2029	# can/must only be called in main	3541	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3542	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	3543	warn "can only reload from main coroutine";
2032	return;	3544	return;
2033	}	3545	}
2034		3546
2035	warn "reloading...";	3547	warn "reloading...";
2036		3548
2037	my $guard = freeze_mainloop;	3549	warn "entering sync_job";
		3550
		3551	cf::sync_job {
		3552	cf::write_runtime_sync; # external watchdog should not bark
2038	cf::emergency_save;	3553	cf::emergency_save;
		3554	cf::write_runtime_sync; # external watchdog should not bark
2039		3555
2040	eval {	3556	warn "syncing database to disk";
		3557	BDB::db_env_txn_checkpoint $DB_ENV;
		3558
2041	# 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
2042		3560
2043	# cancel all watchers	3561	warn "flushing outstanding aio requests";
2044	for (Event::all_watchers) {	3562	for (;;) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	3563	BDB::flush;
		3564	IO::AIO::flush;
		3565	Coro::cede_notself;
		3566	last unless IO::AIO::nreqs || BDB::nreqs;
		3567	warn "iterate...";
2046	}	3568	}
2047		3569
		3570	++$RELOAD;
		3571
2048	# cancel all extension coros	3572	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	3573	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	3574	%EXT_CORO = ();
2051		3575
2052	# unload all extensions	3576	warn "removing commands";
2053	for (@exts) {	3577	%COMMAND = ();
		3578
		3579	warn "removing ext/exti commands";
		3580	%EXTCMD = ();
		3581	%EXTICMD = ();
		3582
		3583	warn "unloading/nuking all extensions";
		3584	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	3585	warn "... unloading $pkg";
2055	unload_extension $_;	3586
		3587	if (my $cb = $pkg->can ("unload")) {
		3588	eval {
		3589	$cb->($pkg);
		3590	1
		3591	} or warn "$pkg unloaded, but with errors: $@";
2056	}	3592	}
2057		3593
		3594	warn "... nuking $pkg";
		3595	Symbol::delete_package $pkg;
		3596	}
		3597
2058	# unload all modules loaded from $LIBDIR	3598	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	3599	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3600	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		3601
2062	warn "removing <$k>";	3602	warn "... unloading $k";
2063	delete $INC{$k};	3603	delete $INC{$k};
2064		3604
2065	$k =~ s/\.pm$//;	3605	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	3606	$k =~ s/\//::/g;
2067		3607
…		…
2070	}	3610	}
2071		3611
2072	Symbol::delete_package $k;	3612	Symbol::delete_package $k;
2073	}	3613	}
2074		3614
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	3615	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3616	Symbol::delete_package "safe::$_"
2081	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);
2082		3618
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	3619	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	3620	delete $INC{"cf.pm"};
		3621	delete $INC{"cf/pod.pm"};
2088		3622
2089	# don't, removes xs symbols, too,	3623	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3624	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3625	#Symbol::delete_package __PACKAGE__;
2092		3626
2093	# reload cf.pm	3627	warn "unload completed, starting to reload now";
		3628
2094	warn "reloading cf.pm";	3629	warn "reloading cf.pm";
2095	require cf;	3630	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3631	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		3632
2098	# load config and database again	3633	warn "loading config and database again";
2099	cf::cfg_load;	3634	cf::reload_config;
2100	cf::db_load;
2101		3635
2102	# load extensions
2103	warn "load extensions";	3636	warn "loading extensions";
2104	cf::load_extensions;	3637	cf::load_extensions;
2105		3638
2106	# reattach attachments to objects	3639	warn "reattaching attachments to objects/players";
2107	warn "reattach";	3640	_global_reattach; # objects, sockets
2108	_global_reattach;	3641	warn "reattaching attachments to maps";
		3642	reattach $_ for values %MAP;
		3643	warn "reattaching attachments to players";
		3644	reattach $_ for values %PLAYER;
		3645
		3646	warn "leaving sync_job";
		3647
		3648	1
		3649	} or do {
		3650	warn $@;
		3651	cf::cleanup "error while reloading, exiting.";
2109	};	3652	};
2110		3653
2111	if ($@) {	3654	warn "reloaded";
2112	warn $@;
2113	warn "error while reloading, exiting.";
2114	exit 1;
2115	}
2116
2117	warn "reloaded successfully";
2118	};	3655	};
2119		3656
2120	#############################################################################	3657	our $RELOAD_WATCHER; # used only during reload
2121		3658
2122	unless ($LINK_MAP) {	3659	sub reload_perl() {
2123	$LINK_MAP = cf::map::new;	3660	# doing reload synchronously and two reloads happen back-to-back,
		3661	# coro crashes during coro_state_free->destroy here.
2124		3662
2125	$LINK_MAP->width (41);	3663	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2126	$LINK_MAP->height (41);	3664	do_reload_perl;
2127	$LINK_MAP->alloc;	3665	undef $RELOAD_WATCHER;
2128	$LINK_MAP->path ("{link}");	3666	};
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,
2135	cb => sub {
2136	$_[0]->w->cancel;
2137
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});
2156
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	3667	}
2162
2163	register "<global>", __PACKAGE__;
2164		3668
2165	register_command "reload" => sub {	3669	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	3670	my ($who, $arg) = @_;
2167		3671
2168	if ($who->flag (FLAG_WIZ)) {	3672	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	3673	$who->message ("reloading server.");
		3674	async {
		3675	$Coro::current->{desc} = "perl_reload";
		3676	reload_perl;
		3677	};
2172	}	3678	}
2173	};	3679	};
2174		3680
2175	unshift @INC, $LIBDIR;	3681	unshift @INC, $LIBDIR;
2176		3682
2177	$TICK_WATCHER = Event->timer (	3683	my $bug_warning = 0;
2178	reentrant => 0,	3684
2179	prio => 0,	3685	our @WAIT_FOR_TICK;
2180	at => $NEXT_TICK || $TICK,	3686	our @WAIT_FOR_TICK_BEGIN;
2181	data => WF_AUTOCANCEL,	3687
2182	cb => sub {	3688	sub wait_for_tick {
		3689	return if tick_inhibit;
		3690	return if $Coro::current == $Coro::main;
		3691
		3692	my $signal = new Coro::Signal;
		3693	push @WAIT_FOR_TICK, $signal;
		3694	$signal->wait;
		3695	}
		3696
		3697	sub wait_for_tick_begin {
		3698	return if tick_inhibit;
		3699	return if $Coro::current == $Coro::main;
		3700
		3701	my $signal = new Coro::Signal;
		3702	push @WAIT_FOR_TICK_BEGIN, $signal;
		3703	$signal->wait;
		3704	}
		3705
		3706	sub tick {
		3707	if ($Coro::current != $Coro::main) {
		3708	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3709	unless ++$bug_warning > 10;
		3710	return;
		3711	}
		3712
2183	cf::server_tick; # one server iteration	3713	cf::server_tick; # one server iteration
2184	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;
2186		3714
2187	# if we are delayed by four ticks or more, skip them all	3715	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3716	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2189		3717	Coro::async_pool {
2190	$TICK_WATCHER->at ($NEXT_TICK);	3718	$Coro::current->{desc} = "runtime saver";
2191	$TICK_WATCHER->start;
2192	},
2193	);
2194
2195	IO::AIO::max_poll_time $TICK * 0.2;
2196
2197	Event->io (
2198	fd => IO::AIO::poll_fileno,
2199	poll => 'r',
2200	prio => 5,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,
2207	after => 0,
2208	interval => 10,
2209	cb => sub {
2210	(Coro::unblock_sub {
2211	write_runtime	3719	write_runtime_sync
2212	or warn "ERROR: unable to write runtime file: $!";	3720	or warn "ERROR: unable to write runtime file: $!";
2213	})->();	3721	};
2214	},	3722	}
2215	);	3723
		3724	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3725	$sig->send;
		3726	}
		3727	while (my $sig = shift @WAIT_FOR_TICK) {
		3728	$sig->send;
		3729	}
		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	}
		3742
		3743	{
		3744	# configure BDB
		3745
		3746	BDB::min_parallel 8;
		3747	BDB::max_poll_reqs $TICK * 0.1;
		3748	$Coro::BDB::WATCHER->priority (1);
		3749
		3750	unless ($DB_ENV) {
		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);
		3756
		3757	cf::sync_job {
		3758	eval {
		3759	BDB::db_env_open
		3760	$DB_ENV,
		3761	$BDBDIR,
		3762	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3763	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3764	0666;
		3765
		3766	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3767	};
		3768
		3769	cf::cleanup "db_env_open(db): $@" if $@;
		3770	};
		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	};
		3782	}
		3783
		3784	{
		3785	# configure IO::AIO
		3786
		3787	IO::AIO::min_parallel 8;
		3788	IO::AIO::max_poll_time $TICK * 0.1;
		3789	$Coro::AIO::WATCHER->priority (1);
		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;
2216		3834
2217	END { cf::emergency_save }	3835	END { cf::emergency_save }
2218		3836
2219	1	3837	1
2220		3838

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