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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.141 by root, Fri Jan 5 20:08:53 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
27		60	#
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	61	$Storable::canonical = 1; # reduce rsync transfers
29	$YAML::Syck::ImplicitUnicode = 1;	62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		64
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		66
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		68
35	our %COMMAND = ();	69	our %COMMAND = ();
36	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
		71
		72	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
		75	our %EXT_CORO = (); # coroutines bound to extensions
		76	our %EXT_MAP = (); # pluggable maps
38		77
		78	our $RELOAD; # number of reloads so far
39	our @EVENT;	79	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		80
42	our $TICK = MAX_TIME * 1e-6;	81	our $CONFDIR = confdir;
		82	our $DATADIR = datadir;
		83	our $LIBDIR = "$DATADIR/ext";
		84	our $PODDIR = "$DATADIR/pod";
		85	our $MAPDIR = "$DATADIR/" . mapdir;
		86	our $LOCALDIR = localdir;
		87	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		88	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		89	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		90	our $RANDOMDIR = "$LOCALDIR/random";
		91	our $BDBDIR = "$LOCALDIR/db";
		92	our %RESOURCE;
		93
		94	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	97	our $NEXT_TICK;
45	our $NOW;	98	our $USE_FSYNC = 1; # use fsync to write maps - default off
		99
		100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
		104	our $DB_ENV;
46		105
47	our %CFG;	106	our %CFG;
48		107
49	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
51		111
52	our %MAP; # all maps	112	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	113	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	114	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	115
		116	# used to convert map paths into valid unix filenames by replacing / by ∕
		117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		118
		119	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		120	our $LOADAVG; # same thing, but with alpha-smoothing
		121	our $JITTER; # average jitter
		122	our $TICK_START; # for load detecting purposes
56		123
57	binmode STDOUT;	124	binmode STDOUT;
58	binmode STDERR;	125	binmode STDERR;
59		126
60	# read virtual server time, if available	127	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
65	}	132	}
66		133
67	mkdir cf::localdir;	134	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		136
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
		138
		139	sub cf::map::normalise;
76		140
77	#############################################################################	141	#############################################################################
78		142
79	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
80		144
…		…
87	=item $cf::RUNTIME	151	=item $cf::RUNTIME
88		152
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	153	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	154	every server tick.
91		155
92	=item $cf::LIBDIR	156	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		157	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		158	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		159
94	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	161	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		162	unique-items directory, player file directory, random maps directory and
		163	database environment.
96		164
97	=item $cf::NOW	165	=item $cf::NOW
98		166
99	The time of the last (current) server tick.	167	The time of the last (current) server tick.
100		168
101	=item $cf::TICK	169	=item $cf::TICK
102		170
103	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
104		172
		173	=item $cf::LOADAVG
		174
		175	The current CPU load on the server (alpha-smoothed), as a value between 0
		176	(none) and 1 (overloaded), indicating how much time is spent on processing
		177	objects per tick. Healthy values are < 0.5.
		178
		179	=item $cf::LOAD
		180
		181	The raw value load value from the last tick.
		182
105	=item %cf::CFG	183	=item %cf::CFG
106		184
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	186	from wherever your confdir points to.
		187
		188	=item cf::wait_for_tick, cf::wait_for_tick_begin
		189
		190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		191	returns directly I<after> the tick processing (and consequently, can only wake one process
		192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		193
		194	=item @cf::INVOKE_RESULTS
		195
		196	This array contains the results of the last C<invoke ()> call. When
		197	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		198	that call.
109		199
110	=back	200	=back
111		201
112	=cut	202	=cut
113		203
114	BEGIN {	204	BEGIN {
115	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	206	my $msg = join "", @_;
117	utf8::encode $msg;
118		207
119	$msg .= "\n"	208	$msg .= "\n"
120	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
121		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
122	LOG llevError, "cfperl: $msg";	213	LOG llevError, $msg;
123	};	214	};
124	}	215	}
		216
		217	$Coro::State::DIEHOOK = sub {
		218	return unless $^S eq 0; # "eq", not "=="
		219
		220	if ($Coro::current == $Coro::main) {#d#
		221	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		222	return;#d#
		223	}#d#
		224
		225	# kill coroutine otherwise
		226	warn Carp::longmess $_[0];
		227	Coro::terminate
		228	};
		229
		230	$SIG{__DIE__} = sub { }; #d#?
125		231
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	236	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		237	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	238	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		239
133	# we bless all objects into (empty) derived classes to force a method lookup	240	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	241	# within the Safe compartment.
135	for my $pkg (qw(	242	for my $pkg (qw(
136	cf::global cf::attachable	243	cf::global cf::attachable
…		…
141	)) {	248	)) {
142	no strict 'refs';	249	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	251	}
145		252
146	$Event::DIED = sub {	253	$EV::DIED = sub {
147	warn "error in event callback: @_";	254	warn "error in event callback: @_";
148	};	255	};
149		256
150	my %ext_pkg;	257	#############################################################################
151	my @exts;
152	my @hook;
153		258
154	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
155		260
156	=over 4	261	=over 4
157		262
158	=cut	263	=item dumpval $ref
159		264
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	265	=cut
161		266
		267	sub dumpval {
		268	eval {
		269	local $SIG{__DIE__};
		270	my $d;
		271	if (1) {
		272	$d = new Data::Dumper([$_[0]], ["*var"]);
		273	$d->Terse(1);
		274	$d->Indent(2);
		275	$d->Quotekeys(0);
		276	$d->Useqq(1);
		277	#$d->Bless(...);
		278	$d->Seen($_[1]) if @_ > 1;
		279	$d = $d->Dump();
		280	}
		281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		282	$d
		283	} || "[unable to dump $_[0]: '$@']";
		284	}
		285
162	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
163		287
164	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
165		289
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
174		291
175	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
176		293
177	=cut	294	=cut
178		295
179	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
181	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
182	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
183		300
184	=item cf::lock_wait $string	301	=item cf::lock_wait $string
185		302
186	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
187		304
…		…
190	Wait until the given lock is available and then acquires it and returns	307	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	308	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
193	returned.	310	returned.
194		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
195	Lock names should begin with a unique identifier (for example, cf::map::find	315	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
197		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
198	=cut	322	=cut
199		323
200	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
201		326
202	sub lock_wait($) {	327	sub lock_wait($) {
203	my ($key) = @_;	328	my ($key) = @_;
		329
		330	if ($LOCKER{$key} == $Coro::current) {#d#
		331	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		332	return;#d#
		333	}#d#
204		334
205	# wait for lock, if any	335	# wait for lock, if any
206	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	338	Coro::schedule;
…		…
214		344
215	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
216	lock_wait $key;	346	lock_wait $key;
217		347
218	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
219		350
220	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
223	}	355	}
224	}	356	}
225		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
226	sub freeze_mainloop {	364	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
228		366
229	my $guard = Coro::guard { $TICK_WATCHER->start };	367	Coro::guard \&tick_inhibit_dec;
230	$TICK_WATCHER->stop;	368	}
231	$guard	369
		370	=item cf::periodic $interval, $cb
		371
		372	Like EV::periodic, but randomly selects a starting point so that the actions
		373	get spread over timer.
		374
		375	=cut
		376
		377	sub periodic($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
		428	}
		429	};
		430
		431	sub get_slot($;$$) {
		432	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	$sig->wait;
232	}	441	}
233		442
234	=item cf::async { BLOCK }	443	=item cf::async { BLOCK }
235		444
236	Currently the same as Coro::async_pool, meaning you cannot use	445	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		450
242	BEGIN { *async = \&Coro::async_pool }	451	BEGIN { *async = \&Coro::async_pool }
243		452
244	=item cf::sync_job { BLOCK }	453	=item cf::sync_job { BLOCK }
245		454
246	The design of crossfire+ requires that the main coro ($Coro::main) is	455	The design of Deliantra requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	456	is always able to handle events or runnable, as Deliantra is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
249		459
250	If it must be done, put the blocking parts into C<sync_job>. This will run	460	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	461	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	462	server will be frozen during this time, so the block should either finish
253	fast or be very important.	463	fast or be very important.
…		…
256		466
257	sub sync_job(&) {	467	sub sync_job(&) {
258	my ($job) = @_;	468	my ($job) = @_;
259		469
260	if ($Coro::current == $Coro::main) {	470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
261	# this is the main coro, too bad, we have to block	473	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	474	# till the operation succeeds, freezing the server :/
263		475
264	# TODO: use suspend/resume instead	476	LOG llevError, Carp::longmess "sync job";#d#
265	# (but this is cancel-safe)	477
266	my $freeze_guard = freeze_mainloop;	478	my $freeze_guard = freeze_mainloop;
267		479
268	my $busy = 1;	480	my $busy = 1;
269	my @res;	481	my @res;
270		482
271	(async {	483	(async {
		484	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	485	@res = eval { $job->() };
273	warn $@ if $@;	486	warn $@ if $@;
274	undef $busy;	487	undef $busy;
275	})->prio (Coro::PRIO_MAX);	488	})->prio (Coro::PRIO_MAX);
276		489
277	while ($busy) {	490	while ($busy) {
278	Coro::cede or Event::one_event;	491	if (Coro::nready) {
		492	Coro::cede_notself;
		493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
279	}	495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
280		501
281	wantarray ? @res : $res[0]	502	wantarray ? @res : $res[0]
282	} else {	503	} else {
283	# we are in another coroutine, how wonderful, everything just works	504	# we are in another coroutine, how wonderful, everything just works
284		505
…		…
286	}	507	}
287	}	508	}
288		509
289	=item $coro = cf::async_ext { BLOCK }	510	=item $coro = cf::async_ext { BLOCK }
290		511
291	Like async, but this coro is automcatially being canceled when the	512	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	513	extension calling this is being unloaded.
293		514
294	=cut	515	=cut
295		516
296	sub async_ext(&) {	517	sub async_ext(&) {
…		…
304	$EXT_CORO{$coro+0} = $coro;	525	$EXT_CORO{$coro+0} = $coro;
305		526
306	$coro	527	$coro
307	}	528	}
308		529
309	sub write_runtime {	530	=item fork_call { }, $args
310	my $runtime = cf::localdir . "/runtime";
311		531
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	532	Executes the given code block with the given arguments in a seperate
313	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.
314		536
315	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	537	=cut
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;
318		538
319	aio_fsync $fh	539	sub fork_call(&@) {
320	and return;	540	my ($cb, @args) = @_;
321		541
322	close $fh	542	# we seemingly have to make a local copy of the whole thing,
323	or return;	543	# otherwise perl prematurely frees the stuff :/
		544	# TODO: investigate and fix (likely this will be rather laborious)
324		545
325	aio_rename "$runtime~", $runtime	546	my @res = Coro::Util::fork_eval {
326	and return;	547	reset_signals;
		548	&$cb
		549	}, @args;
327		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($$) {
		623	my $key = "$_[0]/$_[1]";
		624
		625	cf::sync_job {
		626	BDB::db_get $DB, undef, $key, my $data;
		627
		628	$! ? ()
		629	: $data
328	1	630	}
		631	}
		632
		633	sub db_put($$$) {
		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 => $type });
329	}	717	}
330		718
331	=back	719	=back
332		720
333	=cut	721	=cut
334
335	#############################################################################
336
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454		722
455	#############################################################################	723	#############################################################################
456		724
457	=head2 ATTACHABLE OBJECTS	725	=head2 ATTACHABLE OBJECTS
458		726
…		…
460	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")
461	to it. All such attachable objects support the following methods.	729	to it. All such attachable objects support the following methods.
462		730
463	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>
464	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
465	crossfire+).	733	Deliantra).
466		734
467	=over 4	735	=over 4
468		736
469	=item $attachable->attach ($attachment, key => $value...)	737	=item $attachable->attach ($attachment, key => $value...)
470		738
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	852	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	853	our @CB_MAP = ();
586		854
587	my %attachment;	855	my %attachment;
588		856
		857	sub cf::attachable::thawer_merge {
		858	# simply override everything except _meta
		859	local $_[0]{_meta};
		860	%{$_[0]} = %{$_[1]};
		861	}
		862
589	sub _attach_cb($$$$) {	863	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	864	my ($registry, $event, $prio, $cb) = @_;
591		865
592	use sort 'stable';	866	use sort 'stable';
593		867
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	901	$registry = $CB_TYPE[$object_type] ||= [];
628		902
629	} elsif ($type eq "subtype") {	903	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	904	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	905	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	906	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		907
634	} elsif ($type eq "package") {	908	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	909	my $pkg = shift @arg;
636		910
637	while (my ($name, $id) = each %cb_id) {	911	while (my ($name, $id) = each %cb_id) {
…		…
666	_attach $registry, $klass, @attach;	940	_attach $registry, $klass, @attach;
667	}	941	}
668		942
669	$obj->{$name} = \%arg;	943	$obj->{$name} = \%arg;
670	} else {	944	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	945	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	946	}
673		947
674	$obj->{_attachment}{$name} = undef;	948	$obj->{_attachment}{$name} = undef;
675	}	949	}
676		950
…		…
678	if (ref $_[0]) {	952	if (ref $_[0]) {
679	_object_attach @_;	953	_object_attach @_;
680	} else {	954	} else {
681	_attach shift->_attach_registry, @_;	955	_attach shift->_attach_registry, @_;
682	}	956	}
		957	_recalc_want;
683	};	958	};
684		959
685	# all those should be optimised	960	# all those should be optimised
686	sub cf::attachable::detach {	961	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	962	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	965	delete $obj->{_attachment}{$name};
691	reattach ($obj);	966	reattach ($obj);
692	} else {	967	} else {
693	Carp::croak "cannot, currently, detach class attachments";	968	Carp::croak "cannot, currently, detach class attachments";
694	}	969	}
		970	_recalc_want;
695	};	971	};
696		972
697	sub cf::attachable::attached {	973	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
699		975
…		…
714	";	990	";
715	die if $@;	991	die if $@;
716	}	992	}
717		993
718	our $override;	994	our $override;
719	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?
720		996
721	sub override {	997	sub override {
722	$override = 1;	998	$override = 1;
723	@invoke_results = ();	999	@INVOKE_RESULTS = (@_);
724	}	1000	}
725		1001
726	sub do_invoke {	1002	sub do_invoke {
727	my $event = shift;	1003	my $event = shift;
728	my $callbacks = shift;	1004	my $callbacks = shift;
729		1005
730	@invoke_results = ();	1006	@INVOKE_RESULTS = ();
731		1007
732	local $override;	1008	local $override;
733		1009
734	for (@$callbacks) {	1010	for (@$callbacks) {
735	eval { &{$_->[1]} };	1011	eval { &{$_->[1]} };
…		…
744	}	1020	}
745		1021
746	0	1022	0
747	}	1023	}
748		1024
749	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1025	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
750		1026
751	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
752		1028
753	Generate an object-specific event with the given arguments.	1029	Generate an object-specific event with the given arguments.
754		1030
755	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
756	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
757	results (if you must, access C<@cf::invoke_results> directly).	1033	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		1034
759	=back	1035	=back
760		1036
761	=cut	1037	=cut
762		1038
763	#############################################################################	1039	#############################################################################
764	# 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	}
765		1083
766	sub reattach {	1084	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1085	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1086	my ($obj) = @_;
		1087
		1088	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		1089
770	my $registry = $obj->registry;	1090	my $registry = $obj->registry;
771		1091
772	@$registry = ();	1092	@$registry = ();
773		1093
…		…
788	cf::attachable->attach (	1108	cf::attachable->attach (
789	prio => -1000000,	1109	prio => -1000000,
790	on_instantiate => sub {	1110	on_instantiate => sub {
791	my ($obj, $data) = @_;	1111	my ($obj, $data) = @_;
792		1112
793	$data = from_json $data;	1113	$data = decode_json $data;
794		1114
795	for (@$data) {	1115	for (@$data) {
796	my ($name, $args) = @$_;	1116	my ($name, $args) = @$_;
797		1117
798	$obj->attach ($name, %{$args || {} });	1118	$obj->attach ($name, %{$args || {} });
…		…
814	sub object_freezer_save {	1134	sub object_freezer_save {
815	my ($filename, $rdata, $objs) = @_;	1135	my ($filename, $rdata, $objs) = @_;
816		1136
817	sync_job {	1137	sync_job {
818	if (length $$rdata) {	1138	if (length $$rdata) {
		1139	utf8::decode (my $decname = $filename);
819	warn sprintf "saving %s (%d,%d)\n",	1140	warn sprintf "saving %s (%d,%d)\n",
820	$filename, length $$rdata, scalar @$objs;	1141	$decname, length $$rdata, scalar @$objs;
821		1142
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1143	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	1144	chmod SAVE_MODE, $fh;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1145	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
825	aio_fsync $fh;	1146	aio_fsync $fh if $cf::USE_FSYNC;
826	close $fh;	1147	close $fh;
827		1148
828	if (@$objs) {	1149	if (@$objs) {
829	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) {
830	chmod SAVE_MODE, $fh;	1151	chmod SAVE_MODE, $fh;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	1152	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	1153	aio_write $fh, 0, (length $data), $data, 0;
833	aio_fsync $fh;	1154	aio_fsync $fh if $cf::USE_FSYNC;
834	close $fh;	1155	close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	1156	aio_rename "$filename.pst~", "$filename.pst";
836	}	1157	}
837	} else {	1158	} else {
838	aio_unlink "$filename.pst";	1159	aio_unlink "$filename.pst";
…		…
844	}	1165	}
845	} else {	1166	} else {
846	aio_unlink $filename;	1167	aio_unlink $filename;
847	aio_unlink "$filename.pst";	1168	aio_unlink "$filename.pst";
848	}	1169	}
849	}	1170	};
850	}	1171	}
851		1172
852	sub object_freezer_as_string {	1173	sub object_freezer_as_string {
853	my ($rdata, $objs) = @_;	1174	my ($rdata, $objs) = @_;
854		1175
…		…
866	or return;	1187	or return;
867		1188
868	unless (aio_stat "$filename.pst") {	1189	unless (aio_stat "$filename.pst") {
869	(aio_load "$filename.pst", $av) >= 0	1190	(aio_load "$filename.pst", $av) >= 0
870	or return;	1191	or return;
		1192
871	$av = eval { (Storable::thaw $av)->{objs} };	1193	my $st = eval { Coro::Storable::thaw $av };
		1194	$av = $st->{objs};
872	}	1195	}
873		1196
		1197	utf8::decode (my $decname = $filename);
874	warn sprintf "loading %s (%d)\n",	1198	warn sprintf "loading %s (%d,%d)\n",
875	$filename, length $data, scalar @{$av || []};#d#	1199	$decname, length $data, scalar @{$av || []};
		1200
876	return ($data, $av);	1201	($data, $av)
877	}	1202	}
		1203
		1204	=head2 COMMAND CALLBACKS
		1205
		1206	=over 4
		1207
		1208	=cut
878		1209
879	#############################################################################	1210	#############################################################################
880	# command handling &c	1211	# command handling &c
881		1212
882	=item cf::register_command $name => \&callback($ob,$args);	1213	=item cf::register_command $name => \&callback($ob,$args);
…		…
895	push @{ $COMMAND{$name} }, [$caller, $cb];	1226	push @{ $COMMAND{$name} }, [$caller, $cb];
896	}	1227	}
897		1228
898	=item cf::register_extcmd $name => \&callback($pl,$packet);	1229	=item cf::register_extcmd $name => \&callback($pl,$packet);
899		1230
900	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.
901		1236
902	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
903	called.	1238	called.
904		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
905	=cut	1251	=cut
906		1252
907	sub register_extcmd {	1253	sub register_extcmd {
908	my ($name, $cb) = @_;	1254	my ($name, $cb) = @_;
909		1255
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	1256	$EXTCMD{$name} = $cb;
		1257	}
		1258
		1259	sub register_exticmd {
		1260	my ($name, $cb) = @_;
		1261
		1262	$EXTICMD{$name} = $cb;
914	}	1263	}
915		1264
916	cf::player->attach (	1265	cf::player->attach (
917	on_command => sub {	1266	on_command => sub {
918	my ($pl, $name, $params) = @_;	1267	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1276	cf::override;
928	},	1277	},
929	on_extcmd => sub {	1278	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1279	my ($pl, $buf) = @_;
931		1280
932	my $msg = eval { from_json $buf };	1281	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1282
934	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
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1291	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	1292	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1293	}
		1294
		1295	$pl->ext_reply ($reply, @reply)
		1296	if $reply;
		1297
940	} else {	1298	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1299	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1300	}
943		1301
944	cf::override;	1302	cf::override;
945	},	1303	},
946	);	1304	);
947		1305
948	sub register {
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	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($) {
955	my ($path) = @_;	1744	my ($path) = @_;
956		1745
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1746	my ($match, $specificity);
958	my $base = $1;
959	my $pkg = $1;
960	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";
962		1747
963	warn "loading '$path' into '$pkg'\n";	1748	for my $region (list) {
964		1749	if ($region->{match} && $path =~ $region->{match}) {
965	open my $fh, "<:utf8", $path	1750	($match, $specificity) = ($region, $region->specificity)
966	or die "$path: $!";	1751	if $region->specificity > $specificity;
967		1752	}
968	my $source =
969	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })
972	. "\n};\n1";
973
974	eval $source
975	or die $@ ? "$path: $@\n"
976	: "extension disabled.\n";
977
978	push @exts, $pkg;
979	$ext_pkg{$base} = $pkg;
980
981	# no strict 'refs';
982	# @{"$pkg\::ISA"} = ext::;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }	1753	}
997		1754
998	# remove commands	1755	$match
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}
1007	}
1008
1009	# remove extcmds
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1011	delete $EXTCMD{$name};
1012	}
1013
1014	if (my $cb = $pkg->can ("unload")) {
1015	eval {
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020
1021	Symbol::delete_package $pkg;
1022	}
1023
1024	sub load_extensions {
1025	for my $ext (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;
1027	eval {
1028	load_extension $ext;
1029	1
1030	} or warn "$ext not loaded: $@";
1031	}
1032	}
1033
1034	#############################################################################
1035	# load/save/clean perl data associated with a map
1036
1037	*cf::mapsupport::on_clean = sub {
1038	my ($map) = @_;
1039
1040	my $path = $map->tmpname;
1041	defined $path or return;
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}
1054
1055	# TODO: compatibility cruft, remove when no longer needed
1056	cf::player->attach (
1057	on_load => sub {
1058	my ($pl, $path) = @_;
1059
1060	for my $o (all_objects $pl->ob) {
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1062	$o->set_ob_key_value ("_perl_data");
1063
1064	%$o = %{ Storable::thaw pack "H*", $value };
1065	}
1066	}
1067	},
1068	);
1069
1070	#############################################################################
1071
1072	=head2 CORE EXTENSIONS
1073
1074	Functions and methods that extend core crossfire objects.
1075
1076	=head3 cf::player
1077
1078	=over 4
1079
1080	=item cf::player::exists $login
1081
1082	Returns true when the given account exists.
1083
1084	=cut
1085
1086	sub cf::player::exists($) {
1087	cf::player::find $_[0]
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1089	}
1090
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)
1092
1093	Sends an ext reply to the player.
1094
1095	=cut
1096
1097	sub cf::player::ext_reply($$$%) {
1098	my ($self, $id, %msg) = @_;
1099
1100	$msg{msgid} = $id;
1101
1102	$self->send ("ext " . to_json \%msg);
1103	}	1756	}
1104		1757
1105	=back	1758	=back
1106
1107		1759
1108	=head3 cf::map	1760	=head3 cf::map
1109		1761
1110	=over 4	1762	=over 4
1111		1763
…		…
1114	package cf::map;	1766	package cf::map;
1115		1767
1116	use Fcntl;	1768	use Fcntl;
1117	use Coro::AIO;	1769	use Coro::AIO;
1118		1770
		1771	use overload
		1772	'""' => \&as_string,
		1773	fallback => 1;
		1774
1119	our $MAX_RESET = 3600;	1775	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	1776	our $DEFAULT_RESET = 3000;
1121		1777
1122	sub generate_random_map {	1778	sub generate_random_map {
1123	my ($path, $rmp) = @_;	1779	my ($self, $rmp) = @_;
		1780
		1781	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1124		1782
1125	# mit "rum" bekleckern, nicht	1783	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1784	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1785	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1786	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1787	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1788	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1789	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1790	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1791	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1792	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$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},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1794	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(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"
1139	}	1924	}
1140		1925
1141	# and all this just because we cannot iterate over	1926	# and all this just because we cannot iterate over
1142	# all maps in C++...	1927	# all maps in C++...
1143	sub change_all_map_light {	1928	sub change_all_map_light {
…		…
1145		1930
1146	$_->change_map_light ($change)	1931	$_->change_map_light ($change)
1147	for grep $_->outdoor, values %cf::MAP;	1932	for grep $_->outdoor, values %cf::MAP;
1148	}	1933	}
1149		1934
		1935	sub decay_objects {
		1936	my ($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
1150	sub try_load_header($) {	1951	sub load_header_from($) {
1151	my ($path) = @_;	1952	my ($self, $path) = @_;
1152		1953
1153	utf8::encode $path;	1954	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1955	my $f = new_from_file cf::object::thawer $path
1155	or return;	1956	or return;
1156		1957
1157	my $map = cf::map::new	1958	$self->_load_header ($f)
1158	or return;	1959	or return;
1159		1960
1160	# for better error messages only, will be overwritten	1961	local $MAP_LOADING{$self->{path}} = $self;
1161	$map->path ($path);	1962	$f->resolve_delayed_derefs;
1162		1963
1163	$map->load_header ($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
1164	or return;	2007	or return;
		2008	$self->prepare_orig;
		2009	}
1165		2010
1166	$map->{load_path} = $path;	2011	$self->{deny_reset} = 1
		2012	if $self->no_reset;
1167		2013
1168	$map	2014	$self->default_region (cf::region::find_by_path $self->{path})
		2015	unless $self->default_region;
		2016
		2017	1
1169	}	2018	}
1170		2019
1171	sub find;	2020	sub find;
1172	sub find {	2021	sub find {
1173	my ($path, $origin) = @_;	2022	my ($path, $origin) = @_;
1174		2023
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	2024	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		2025
		2026	cf::lock_wait "map_data:$path";#d#remove
1180	cf::lock_wait "map_find:$key";	2027	cf::lock_wait "map_find:$path";
1181		2028
1182	$cf::MAP{$key} || do {	2029	$cf::MAP{$path} || do {
1183	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
1184		2032
1185	# do it the slow way	2033	my $map = new_from_path cf::map $path
1186	my $map = try_load_header $path->save_path;
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	2034	or return;
1204		2035
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	2036	$map->{last_save} = $cf::RUNTIME;
1217		2037
1218	Coro::cede;	2038	$map->load_header
		2039	or return;
1219		2040
1220	if ($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;
1221	$map->reset;	2046	$map->reset;
1222	undef $guard;
1223	$map = find $path	2047	return find $path;
1224	or return;
1225	}	2048	}
1226		2049
1227	$cf::MAP{$key} = $map	2050	$cf::MAP{$path} = $map
1228	}	2051	}
1229	}	2052	}
		2053
		2054	sub pre_load { }
		2055	sub post_load { }
1230		2056
1231	sub load {	2057	sub load {
1232	my ($self) = @_;	2058	my ($self) = @_;
1233		2059
		2060	local $self->{deny_reset} = 1; # loading can take a long time
		2061
1234	my $path = $self->{path};	2062	my $path = $self->{path};
		2063
		2064	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2065	my $guard = cf::lock_acquire "map_data:$path";
1236		2066
		2067	return unless $self->valid;
1237	return if $self->in_memory != cf::MAP_SWAPPED;	2068	return unless $self->in_memory == cf::MAP_SWAPPED;
1238		2069
1239	$self->in_memory (cf::MAP_LOADING);	2070	$self->in_memory (cf::MAP_LOADING);
1240		2071
1241	$self->alloc;	2072	$self->alloc;
1242	$self->load_objects ($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)
1243	or return;	2080	or return;
1244		2081
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2082	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	2083	if delete $self->{load_original};
1247		2084
1248	if (my $uniq = $path->uniq_path) {	2085	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	2086	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	2087	unless (aio_stat $uniq) {
		2088	if (my $f = new_from_file cf::object::thawer $uniq) {
1251	$self->clear_unique_items;	2089	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	2090	$self->_load_objects ($f);
		2091	$f->resolve_delayed_derefs;
		2092	}
1253	}	2093	}
1254	}	2094	}
1255		2095
1256	Coro::cede;	2096	$f->resolve_delayed_derefs;
1257		2097
		2098	cf::cede_to_tick;
1258	# now do the right thing for maps	2099	# now do the right thing for maps
1259	$self->link_multipart_objects;	2100	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	2101	$self->difficulty ($self->estimate_difficulty)
1270	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;
1271	$self->activate;	2112	$self->activate;
1272	}	2113	}
1273		2114
1274	Coro::cede;	2115	$self->{last_save} = $cf::RUNTIME;
		2116	$self->last_access ($cf::RUNTIME);
1275		2117
1276	$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	$neigh->load;
		2159	}
1277	}	2160	}
1278		2161
1279	sub find_sync {	2162	sub find_sync {
1280	my ($path, $origin) = @_;	2163	my ($path, $origin) = @_;
1281		2164
1282	cf::sync_job { cf::map::find $path, $origin }	2165	cf::sync_job { find $path, $origin }
1283	}	2166	}
1284		2167
1285	sub do_load_sync {	2168	sub do_load_sync {
1286	my ($map) = @_;	2169	my ($map) = @_;
1287		2170
		2171	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2172	if $Coro::current == $Coro::main;
		2173
1288	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	$MAP_PREFETCHER->prio (6);
		2206
		2207	()
1289	}	2208	}
1290		2209
1291	sub save {	2210	sub save {
1292	my ($self) = @_;	2211	my ($self) = @_;
1293		2212
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
1295		2214
1296	$self->{last_save} = $cf::RUNTIME;	2215	$self->{last_save} = $cf::RUNTIME;
1297		2216
1298	return unless $self->dirty;	2217	return unless $self->dirty;
1299		2218
1300	my $save = $self->{path}->save_path; utf8::encode $save;	2219	my $save = $self->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2220	my $uniq = $self->uniq_path; utf8::encode $uniq;
1302		2221
1303	$self->{load_path} = $save;	2222	$self->{load_path} = $save;
1304		2223
1305	return if $self->{deny_save};	2224	return if $self->{deny_save};
1306		2225
1307	local $self->{last_access} = $self->last_access;#d#	2226	local $self->{last_access} = $self->last_access;#d#
1308		2227
		2228	cf::async {
		2229	$Coro::current->{desc} = "map player save";
		2230	$_->contr->save for $self->players;
		2231	};
		2232
1309	if ($uniq) {	2233	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2234	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);	2235	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {	2236	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2237	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}	2238	}
1315	}	2239	}
1316		2240
1317	sub swap_out {	2241	sub swap_out {
1318	my ($self) = @_;	2242	my ($self) = @_;
1319		2243
1320	# save first because save cedes	2244	# save first because save cedes
1321	$self->save;	2245	$self->save;
1322		2246
1323	my $lock = cf::lock_acquire "map_data:" . $self->path;	2247	my $lock = cf::lock_acquire "map_data:$self->{path}";
1324		2248
1325	return if $self->players;	2249	return if $self->players;
1326	return if $self->in_memory != cf::MAP_IN_MEMORY;	2250	return if $self->in_memory != cf::MAP_IN_MEMORY;
1327	return if $self->{deny_save};	2251	return if $self->{deny_save};
1328		2252
		2253	$self->in_memory (cf::MAP_SWAPPED);
		2254
		2255	$self->deactivate;
		2256	$_->clear_links_to ($self) for values %cf::MAP;
1329	$self->clear;	2257	$self->clear;
1330	$self->in_memory (cf::MAP_SWAPPED);
1331	}	2258	}
1332		2259
1333	sub reset_at {	2260	sub reset_at {
1334	my ($self) = @_;	2261	my ($self) = @_;
1335		2262
1336	# TODO: safety, remove and allow resettable per-player maps	2263	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};
1338	return 1e99 if $self->{deny_reset};	2264	return 1e99 if $self->{deny_reset};
1339		2265
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2266	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2267	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		2268
…		…
1347	my ($self) = @_;	2273	my ($self) = @_;
1348		2274
1349	$self->reset_at <= $cf::RUNTIME	2275	$self->reset_at <= $cf::RUNTIME
1350	}	2276	}
1351		2277
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	2278	sub reset {
1374	my ($self) = @_;	2279	my ($self) = @_;
1375		2280
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		2282
1378	return if $self->players;	2283	return if $self->players;
1379	return if $self->{path}{user_rel};#d#
1380		2284
1381	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	}
1382		2296
1383	delete $cf::MAP{$self->path};	2297	delete $cf::MAP{$self->path};
1384		2298
		2299	$self->deactivate;
1385	$_->clear_links_to ($self) for values %cf::MAP;	2300	$_->clear_links_to ($self) for values %cf::MAP;
		2301	$self->clear;
1386		2302
1387	$self->unlink_save;	2303	$self->unlink_save;
1388	$self->destroy;	2304	$self->destroy;
1389	}	2305	}
1390		2306
1391	my $nuke_counter = "aaaa";	2307	my $nuke_counter = "aaaa";
1392		2308
1393	sub nuke {	2309	sub nuke {
1394	my ($self) = @_;	2310	my ($self) = @_;
1395		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};
1396	$self->{deny_save} = 1;	2321	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	2322	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	2323	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2324
		2325	$cf::MAP{$self->path} = $self;
		2326	}
		2327
1399	$self->reset; # polite request, might not happen	2328	$self->reset; # polite request, might not happen
1400	}	2329	}
1401		2330
1402	sub customise_for {	2331	=item $maps = cf::map::tmp_maps
1403	my ($map, $ob) = @_;
1404		2332
1405	if ($map->per_player) {	2333	Returns an arrayref with all map paths of currently instantiated and saved
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2334	maps. May block.
		2335
		2336	=cut
		2337
		2338	sub tmp_maps() {
1407	}	2339	[
1408		2340	map {
1409	$map	2341	utf8::decode $_;
		2342	/\.map$/
		2343	? normalise $_
		2344	: ()
		2345	} @{ aio_readdir $TMPDIR or [] }
		2346	]
1410	}	2347	}
1411		2348
1412	sub emergency_save {	2349	=item $maps = cf::map::random_maps
1413	my $freeze_guard = cf::freeze_mainloop;
1414		2350
1415	warn "enter emergency map save\n";	2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	random maps. May block.
1416		2353
1417	cf::sync_job {	2354	=cut
1418	warn "begin emergency map save\n";	2355
1419	$_->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
1420	};	2437	}
1421
1422	warn "end emergency map save\n";
1423	}	2438	}
1424		2439
1425	package cf;	2440	package cf;
1426		2441
1427	=back	2442	=back
1428
1429		2443
1430	=head3 cf::object::player	2444	=head3 cf::object::player
1431		2445
1432	=over 4	2446	=over 4
1433		2447
…		…
1447		2461
1448	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2462	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1449		2463
1450	if ($self->{record_replies}) {	2464	if ($self->{record_replies}) {
1451	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2465	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2466
1452	} 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 {
1453	$msg = $npc->name . " says: $msg" if $npc;	2475	$msg = $npc->name . " says: $msg" if $npc;
1454	$self->message ($msg, $flags);	2476	$self->message ($msg, $flags);
		2477	}
1455	}	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 (@_);
1456	}	2489	}
1457		2490
1458	=item $player_object->may ("access")	2491	=item $player_object->may ("access")
1459		2492
1460	Returns wether the given player is authorized to access resource "access"	2493	Returns wether the given player is authorized to access resource "access"
…		…
1473		2506
1474	=item $player_object->enter_link	2507	=item $player_object->enter_link
1475		2508
1476	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}>).
1477		2510
1478	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
1479	I<MUST> call C<leave_link> as soon as possible, though.	2512	I<MUST> call C<leave_link> as soon as possible, though.
1480		2513
		2514	Will never block.
		2515
1481	=item $player_object->leave_link ($map, $x, $y)	2516	=item $player_object->leave_link ($map, $x, $y)
1482		2517
1483	Moves the player out of the specila link map onto the given map. If the	2518	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	2519	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	2520	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	2521	fails, to the emergency map position.
1487		2522
1488	Might block.	2523	Might block.
1489		2524
1490	=cut	2525	=cut
		2526
		2527	sub link_map {
		2528	unless ($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	$LINK_MAP
		2535	}
1491		2536
1492	sub cf::object::player::enter_link {	2537	sub cf::object::player::enter_link {
1493	my ($self) = @_;	2538	my ($self) = @_;
1494		2539
1495	$self->deactivate_recursive;	2540	$self->deactivate_recursive;
1496		2541
1497	return if $self->map == $LINK_MAP;	2542	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		2543
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2544	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	2545	if $self->map && $self->map->{path} ne "{link}";
1501		2546
1502	$self->enter_map ($LINK_MAP, 20, 20);	2547	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1503	}	2548	}
1504		2549
1505	sub cf::object::player::leave_link {	2550	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	2551	my ($self, $map, $x, $y) = @_;
		2552
		2553	return unless $self->contr->active;
1507		2554
1508	my $link_pos = delete $self->{_link_pos};	2555	my $link_pos = delete $self->{_link_pos};
1509		2556
1510	unless ($map) {	2557	unless ($map) {
1511	# restore original map position	2558	# restore original map position
…		…
1525	# use -1 or undef as default coordinates, not 0, 0	2572	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	2573	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	2574	if $x <=0 && $y <= 0;
1528		2575
1529	$map->load;	2576	$map->load;
		2577	$map->load_neighbours;
1530		2578
		2579	return unless $self->contr->active;
1531	$self->activate_recursive;	2580	$self->activate_recursive;
		2581
		2582	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1532	$self->enter_map ($map, $x, $y);	2583	$self->enter_map ($map, $x, $y);
1533	}	2584	}
1534		2585
1535	cf::player->attach (	2586	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1536	on_logout => sub {
1537	my ($pl) = @_;
1538		2587
1539	# abort map switching before logout	2588	Moves the player to the given map-path and coordinates by first freezing
1540	if ($pl->ob->{_link_pos}) {	2589	her, loading and preparing them map, calling the provided $check callback
1541	cf::sync_job {	2590	that has to return the map if sucecssful, and then unfreezes the player on
1542	$pl->ob->leave_link	2591	the new (success) or old (failed) map position. In either case, $done will
1543	};	2592	be called at the end of this process.
1544	}
1545	},
1546	on_login => sub {
1547	my ($pl) = @_;
1548		2593
1549	# try to abort aborted map switching on player login :)
1550	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {
1552
1553	$pl->ob->enter_link;
1554	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	$pl->ob->reply (undef,
1558	"There was an internal problem at your last logout, "
1559	. "the server will try to bring you to your intended destination in a second.",
1560	cf::NDI_RED);
1561	Coro::Timer::sleep 1;
1562	$pl->ob->leave_link;
1563	})->prio (2);
1564	}
1565	},
1566	);
1567
1568	=item $player_object->goto ($path, $x, $y)
1569
1570	=cut	2594	=cut
		2595
		2596	our $GOTOGEN;
1571		2597
1572	sub cf::object::player::goto {	2598	sub cf::object::player::goto {
1573	my ($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;
1574		2603
1575	$self->enter_link;	2604	$self->enter_link;
1576		2605
1577	(async {	2606	(async {
1578	$path = new cf::path $path;	2607	$Coro::current->{desc} = "player::goto $path $x $y";
1579		2608
1580	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) {
1581	$map = $map->customise_for ($self) if $map;	2632	$map = $map->customise_for ($self);
1582		2633	$map = $check->($map) if $check && $map;
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	2634	} else {
1584	# if $map;
1585
1586	$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	}
1587		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};
1588	$self->leave_link ($map, $x, $y);	2648	$self->leave_link ($map, $x, $y);
		2649	}
		2650
		2651	$done->() if $done;
1589	})->prio (1);	2652	})->prio (1);
1590	}	2653	}
1591		2654
1592	=item $player_object->enter_exit ($exit_object)	2655	=item $player_object->enter_exit ($exit_object)
1593		2656
…		…
1595		2658
1596	sub parse_random_map_params {	2659	sub parse_random_map_params {
1597	my ($spec) = @_;	2660	my ($spec) = @_;
1598		2661
1599	my $rmp = { # defaults	2662	my $rmp = { # defaults
1600	xsize => 10,	2663	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	2664	ysize => (cf::rndm 15, 40),
		2665	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2666	#layout => string,
1602	};	2667	};
1603		2668
1604	for (split /\n/, $spec) {	2669	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	2670	my ($k, $v) = split /\s+/, $_, 2;
1606		2671
…		…
1610	$rmp	2675	$rmp
1611	}	2676	}
1612		2677
1613	sub prepare_random_map {	2678	sub prepare_random_map {
1614	my ($exit) = @_;	2679	my ($exit) = @_;
		2680
		2681	my $guard = cf::lock_acquire "exit_prepare:$exit";
1615		2682
1616	# all this does is basically replace the /! path by	2683	# all this does is basically replace the /! path by
1617	# a new random map path (?random/...) with a seed	2684	# a new random map path (?random/...) with a seed
1618	# that depends on the exit object	2685	# that depends on the exit object
1619		2686
1620	my $rmp = parse_random_map_params $exit->msg;	2687	my $rmp = parse_random_map_params $exit->msg;
1621		2688
1622	if ($exit->map) {	2689	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2690	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2691	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2692	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2693	$rmp->{origin_y} = $exit->y;
1627	}	2694	}
1628		2695
1629	$rmp->{random_seed} ||= $exit->random_seed;	2696	$rmp->{random_seed} ||= $exit->random_seed;
1630		2697
1631	my $data = cf::to_json $rmp;	2698	my $data = cf::encode_json $rmp;
1632	my $md5 = Digest::MD5::md5_hex $data;	2699	my $md5 = Digest::MD5::md5_hex $data;
		2700	my $meta = "$RANDOMDIR/$md5.meta";
1633		2701
1634	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) {
1635	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;
1636		2706
1637	$exit->slaying ("?random/$md5");	2707	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	2708	$exit->msg (undef);
1639	}	2709	}
1640	}	2710	}
…		…
1642	sub cf::object::player::enter_exit {	2712	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	2713	my ($self, $exit) = @_;
1644		2714
1645	return unless $self->type == cf::PLAYER;	2715	return unless $self->type == cf::PLAYER;
1646		2716
		2717	if ($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
1647	$self->enter_link;	2728	$self->enter_link;
1648		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
1649	(async {	2734	(async {
		2735	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2736
1650	$self->deactivate_recursive; # just to be sure	2737	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2738	unless (eval {
1652	prepare_random_map $exit	2739	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1657		2740
1658	1;	2741	1;
1659	}) {	2742	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2743	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "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. "
1662	. "Please report this to the dungeon master",	2745	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2746	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2747
1665	warn "ERROR in enter_exit: $@";	2748	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2749	$self->leave_link;
1667	}	2750	}
1668	})->prio (1);	2751	})->prio (1);
…		…
1681		2764
1682	sub cf::client::send_drawinfo {	2765	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2766	my ($self, $text, $flags) = @_;
1684		2767
1685	utf8::encode $text;	2768	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2769	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2770	}
1688		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	}
1689		2930
1690	=item $success = $client->query ($flags, "text", \&cb)	2931	=item $success = $client->query ($flags, "text", \&cb)
1691		2932
1692	Queues a query to the client, calling the given callback with	2933	Queues a query to the client, calling the given callback with
1693	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>,
1694	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>.
1695		2936
1696	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
1697	reliable at some point in the future.	2938	become reliable at some point in the future.
1698		2939
1699	=cut	2940	=cut
1700		2941
1701	sub cf::client::query {	2942	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	2943	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	2951	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		2953
1713	$self->send_packet ($self->{query_queue}[0][0])	2954	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	2955	if @{ $self->{query_queue} } == 1;
		2956
		2957	1
1715	}	2958	}
1716		2959
1717	cf::client->attach (	2960	cf::client->attach (
		2961	on_connect => sub {
		2962	my ($ns) = @_;
		2963
		2964	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2965	},
1718	on_reply => sub {	2966	on_reply => sub {
1719	my ($ns, $msg) = @_;	2967	my ($ns, $msg) = @_;
1720		2968
1721	# this weird shuffling is so that direct followup queries	2969	# this weird shuffling is so that direct followup queries
1722	# get handled first	2970	# get handled first
1723	my $queue = delete $ns->{query_queue}	2971	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2972	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2973
1726	(shift @$queue)->[1]->($msg);	2974	(shift @$queue)->[1]->($msg);
		2975	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2976
1728	push @{ $ns->{query_queue} }, @$queue;	2977	push @{ $ns->{query_queue} }, @$queue;
1729		2978
1730	if (@{ $ns->{query_queue} } == @$queue) {	2979	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2980	if (@$queue) {
…		…
1733	} else {	2982	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2983	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	2984	}
1736	}	2985	}
1737	},	2986	},
		2987	on_exticmd => sub {
		2988	my ($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	},
1738	);	3013	);
1739		3014
1740	=item $client->async (\&cb)	3015	=item $client->async (\&cb)
1741		3016
1742	Create a new coroutine, running the specified callback. The coroutine will	3017	Create a new coroutine, running the specified callback. The coroutine will
…		…
1783	our $safe = new Safe "safe";	3058	our $safe = new Safe "safe";
1784	our $safe_hole = new Safe::Hole;	3059	our $safe_hole = new Safe::Hole;
1785		3060
1786	$SIG{FPE} = 'IGNORE';	3061	$SIG{FPE} = 'IGNORE';
1787		3062
1788	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3063	$safe->permit_only (Opcode::opset qw(
		3064	:base_core :base_mem :base_orig :base_math
		3065	grepstart grepwhile mapstart mapwhile
		3066	sort time
		3067	));
1789		3068
1790	# here we export the classes and methods available to script code	3069	# here we export the classes and methods available to script code
1791		3070
1792	=pod	3071	=pod
1793		3072
1794	The following fucntions and emthods are available within a safe environment:	3073	The following functions and methods are available within a safe environment:
1795		3074
1796	cf::object contr pay_amount pay_player map	3075	cf::object
		3076	contr pay_amount pay_player map x y force_find force_add destroy
		3077	insert remove name archname title slaying race decrease_ob_nr
		3078
1797	cf::object::player player	3079	cf::object::player
1798	cf::player peaceful	3080	player
1799	cf::map trigger	3081
		3082	cf::player
		3083	peaceful
		3084
		3085	cf::map
		3086	trigger
1800		3087
1801	=cut	3088	=cut
1802		3089
1803	for (	3090	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	3091	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3092	insert remove inv name archname title slaying race
		3093	decrease_ob_nr destroy)],
1805	["cf::object::player" => qw(player)],	3094	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	3095	["cf::player" => qw(peaceful)],
1807	["cf::map" => qw(trigger)],	3096	["cf::map" => qw(trigger)],
1808	) {	3097	) {
1809	no strict 'refs';	3098	no strict 'refs';
…		…
1880	=back	3169	=back
1881		3170
1882	=cut	3171	=cut
1883		3172
1884	#############################################################################	3173	#############################################################################
		3174	# the server's init and main functions
1885		3175
1886	=head2 EXTENSION DATABASE SUPPORT	3176	sub load_facedata($) {
		3177	my ($path) = @_;
1887		3178
1888	Crossfire maintains a very simple database for extension use. It can	3179	# HACK to clear player env face cache, we need some signal framework
1889	currently store anything that can be serialised using Storable, which	3180	# for this (global event?)
1890	excludes objects.	3181	%ext::player_env::MUSIC_FACE_CACHE = ();
1891		3182
1892	The parameter C<$family> should best start with the name of the extension	3183	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1893	using it, it should be unique.
1894		3184
1895	=over 4	3185	warn "loading facedata from $path\n";
1896		3186
1897	=item $hashref = cf::db_get $family	3187	my $facedata;
		3188	0 < aio_load $path, $facedata
		3189	or die "$path: $!";
1898		3190
1899	Return a hashref for use by the extension C<$family>, which can be	3191	$facedata = Coro::Storable::thaw $facedata;
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902		3192
1903	=item $value = cf::db_get $family => $key	3193	$facedata->{version} == 2
		3194	or cf::cleanup "$path: version mismatch, cannot proceed.";
1904		3195
1905	Returns a single value from the database	3196	# patch in the exptable
1906		3197	$facedata->{resource}{"res/exp_table"} = {
1907	=item cf::db_put $family => $hashref	3198	type => FT_RSRC,
1908		3199	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928
1929	{
1930	my $path = cf::localdir . "/database.pst";
1931
1932	sub db_load() {
1933	$DB = stat $path ? Storable::retrieve $path : { };
1934	}
1935
1936	my $pid;
1937
1938	sub db_save() {
1939	waitpid $pid, 0 if $pid;
1940	if (0 == ($pid = fork)) {
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	3200	};
		3201	cf::cede_to_tick;
1958		3202
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}	3203	{
		3204	my $faces = $facedata->{faceinfo};
1963		3205
1964	sub db_get($;$) {	3206	while (my ($face, $info) = each %$faces) {
1965	@_ >= 2	3207	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		3208
1970	sub db_put($$;$) {	3209	cf::face::set_visibility $idx, $info->{visibility};
1971	if (@_ >= 3) {	3210	cf::face::set_magicmap $idx, $info->{magicmap};
1972	$DB->{$_[0]}{$_[1]} = $_[2];	3211	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1973	} else {	3212	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		3213
1979	cf::global->attach (	3214	cf::cede_to_tick;
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	3215	}
1984	);
1985	}
1986		3216
1987	#############################################################################	3217	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	3218	next unless $info->{smooth};
1989		3219
1990	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 {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	3362	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	3363	or return;
1993		3364
1994	local $/;	3365	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	3366	*CFG = YAML::Load <$fh>;
1996		3367
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3368	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1998		3369
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3370	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3371	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		3372
2002	if (exists $CFG{mlockall}) {	3373	if (exists $CFG{mlockall}) {
2003	eval {	3374	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	3375	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	3376	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	3377	};
2007	warn $@ if $@;	3378	warn $@ if $@;
2008	}	3379	}
2009	}	3380	}
2010		3381
2011	sub main {	3382	sub main {
2012	# we must not ever block the main coroutine	3383	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	3384	local $Coro::idle = sub {
2014	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#
2015	async { Event::one_event };	3386	(async {
		3387	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3388	EV::loop EV::LOOP_ONESHOT;
		3389	})->prio (Coro::PRIO_MAX);
2016	};	3390	};
2017		3391
2018	cfg_load;	3392	reload_config;
2019	db_load;	3393	db_init;
2020	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;
2021	Event::loop;	3398	EV::loop;
2022	}	3399	}
2023		3400
2024	#############################################################################	3401	#############################################################################
2025	# initialisation	3402	# initialisation and cleanup
2026		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 $make_core;
		3538	}
		3539
2027	sub reload() {	3540	sub do_reload_perl() {
2028	# can/must only be called in main	3541	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	3542	if ($Coro::current != $Coro::main) {
2030	warn "can only reload from main coroutine\n";	3543	warn "can only reload from main coroutine";
2031	return;	3544	return;
2032	}	3545	}
2033		3546
2034	warn "reloading...";	3547	warn "reloading...";
2035		3548
2036	my $guard = freeze_mainloop;	3549	warn "entering sync_job";
		3550
		3551	cf::sync_job {
		3552	cf::write_runtime_sync; # external watchdog should not bark
2037	cf::emergency_save;	3553	cf::emergency_save;
		3554	cf::write_runtime_sync; # external watchdog should not bark
2038		3555
2039	eval {	3556	warn "syncing database to disk";
		3557	BDB::db_env_txn_checkpoint $DB_ENV;
		3558
2040	# 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
2041		3560
2042	# cancel all watchers	3561	warn "flushing outstanding aio requests";
2043	for (Event::all_watchers) {	3562	for (;;) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;	3563	BDB::flush;
		3564	IO::AIO::flush;
		3565	Coro::cede_notself;
		3566	last unless IO::AIO::nreqs || BDB::nreqs;
		3567	warn "iterate...";
2045	}	3568	}
2046		3569
		3570	++$RELOAD;
		3571
2047	# cancel all extension coros	3572	warn "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	3573	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	3574	%EXT_CORO = ();
2050		3575
2051	# unload all extensions	3576	warn "removing commands";
2052	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 $pkg (@EXTS) {
2053	warn "unloading <$_>";	3585	warn "... unloading $pkg";
2054	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: $@";
2055	}	3592	}
2056		3593
		3594	warn "... nuking $pkg";
		3595	Symbol::delete_package $pkg;
		3596	}
		3597
2057	# unload all modules loaded from $LIBDIR	3598	warn "unloading all perl modules loaded from $LIBDIR";
2058	while (my ($k, $v) = each %INC) {	3599	while (my ($k, $v) = each %INC) {
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3600	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2060		3601
2061	warn "removing <$k>";	3602	warn "... unloading $k";
2062	delete $INC{$k};	3603	delete $INC{$k};
2063		3604
2064	$k =~ s/\.pm$//;	3605	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;	3606	$k =~ s/\//::/g;
2066		3607
…		…
2069	}	3610	}
2070		3611
2071	Symbol::delete_package $k;	3612	Symbol::delete_package $k;
2072	}	3613	}
2073		3614
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	3615	warn "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	3616	Symbol::delete_package "safe::$_"
2080	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);
2081		3618
2082	# remove register_script_function callbacks
2083	# TODO
2084
2085	# unload cf.pm "a bit"	3619	warn "unloading cf.pm \"a bit\"";
2086	delete $INC{"cf.pm"};	3620	delete $INC{"cf.pm"};
		3621	delete $INC{"cf/pod.pm"};
2087		3622
2088	# don't, removes xs symbols, too,	3623	# don't, removes xs symbols, too,
2089	# and global variables created in xs	3624	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	3625	#Symbol::delete_package __PACKAGE__;
2091		3626
2092	# reload cf.pm	3627	warn "unload completed, starting to reload now";
		3628
2093	warn "reloading cf.pm";	3629	warn "reloading cf.pm";
2094	require cf;	3630	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3631	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2096		3632
2097	# load config and database again	3633	warn "loading config and database again";
2098	cf::cfg_load;	3634	cf::reload_config;
2099	cf::db_load;
2100		3635
2101	# load extensions
2102	warn "load extensions";	3636	warn "loading extensions";
2103	cf::load_extensions;	3637	cf::load_extensions;
2104		3638
2105	# reattach attachments to objects	3639	warn "reattaching attachments to objects/players";
2106	warn "reattach";	3640	_global_reattach; # objects, sockets
2107	_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 $@;
		3651	cf::cleanup "error while reloading, exiting.";
2108	};	3652	};
2109		3653
2110	if ($@) {	3654	warn "reloaded";
2111	warn $@;
2112	warn "error while reloading, exiting.";
2113	exit 1;
2114	}
2115
2116	warn "reloaded successfully";
2117	};	3655	};
2118		3656
2119	#############################################################################	3657	our $RELOAD_WATCHER; # used only during reload
2120		3658
2121	unless ($LINK_MAP) {	3659	sub reload_perl() {
2122	$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.
2123		3662
2124	$LINK_MAP->width (41);	3663	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2125	$LINK_MAP->height (41);	3664	do_reload_perl;
2126	$LINK_MAP->alloc;	3665	undef $RELOAD_WATCHER;
2127	$LINK_MAP->path ("{link}");	3666	};
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 2,
2134	cb => sub {
2135	$_[0]->w->cancel;
2136
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});
2155
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}	3667	}
2161
2162	register "<global>", __PACKAGE__;
2163		3668
2164	register_command "reload" => sub {	3669	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	3670	my ($who, $arg) = @_;
2166		3671
2167	if ($who->flag (FLAG_WIZ)) {	3672	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	3673	$who->message ("reloading server.");
		3674	async {
		3675	$Coro::current->{desc} = "perl_reload";
		3676	reload_perl;
		3677	};
2171	}	3678	}
2172	};	3679	};
2173		3680
2174	unshift @INC, $LIBDIR;	3681	unshift @INC, $LIBDIR;
2175		3682
2176	$TICK_WATCHER = Event->timer (	3683	my $bug_warning = 0;
2177	reentrant => 0,	3684
2178	prio => 0,	3685	our @WAIT_FOR_TICK;
2179	at => $NEXT_TICK || $TICK,	3686	our @WAIT_FOR_TICK_BEGIN;
2180	data => WF_AUTOCANCEL,	3687
2181	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
2182	cf::server_tick; # one server iteration	3713	cf::server_tick; # one server iteration
2183	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;
2185		3714
2186	# if we are delayed by four ticks or more, skip them all	3715	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3716	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2188		3717	Coro::async_pool {
2189	$TICK_WATCHER->at ($NEXT_TICK);	3718	$Coro::current->{desc} = "runtime saver";
2190	$TICK_WATCHER->start;
2191	},
2192	);
2193
2194	IO::AIO::max_poll_time $TICK * 0.2;
2195
2196	Event->io (
2197	fd => IO::AIO::poll_fileno,
2198	poll => 'r',
2199	prio => 5,
2200	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,
2202	);
2203
2204	Event->timer (
2205	data => WF_AUTOCANCEL,
2206	after => 0,
2207	interval => 10,
2208	cb => sub {
2209	(Coro::unblock_sub {
2210	write_runtime	3719	write_runtime_sync
2211	or warn "ERROR: unable to write runtime file: $!";	3720	or warn "ERROR: unable to write runtime file: $!";
2212	})->();	3721	};
2213	},	3722	}
2214	);	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;
2215		3834
2216	END { cf::emergency_save }	3835	END { cf::emergency_save }
2217		3836
2218	1	3837	1
2219		3838

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