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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.142 by root, Fri Jan 5 21:51:42 2007 UTC vs.
Revision 1.416 by root, Fri Apr 11 13:59:06 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) = @_;
1124
1125	# mit "rum" bekleckern, nicht	1780	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1781	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1782	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1783	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1784	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1785	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1786	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1787	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1788	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1789	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1790	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1791	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region})	1792	(cf::region::find $rmp->{region}), $rmp->{custom}
		1793	)
		1794	}
		1795
		1796	=item cf::map->register ($regex, $prio)
		1797
		1798	Register a handler for the map path matching the given regex at the
		1799	givne priority (higher is better, built-in handlers have priority 0, the
		1800	default).
		1801
		1802	=cut
		1803
		1804	sub register {
		1805	my (undef, $regex, $prio) = @_;
		1806	my $pkg = caller;
		1807
		1808	no strict;
		1809	push @{"$pkg\::ISA"}, __PACKAGE__;
		1810
		1811	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1812	}
		1813
		1814	# also paths starting with '/'
		1815	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1816
		1817	sub thawer_merge {
		1818	my ($self, $merge) = @_;
		1819
		1820	# we have to keep some variables in memory intact
		1821	local $self->{path};
		1822	local $self->{load_path};
		1823
		1824	$self->SUPER::thawer_merge ($merge);
		1825	}
		1826
		1827	sub normalise {
		1828	my ($path, $base) = @_;
		1829
		1830	$path = "$path"; # make sure its a string
		1831
		1832	$path =~ s/\.map$//;
		1833
		1834	# map plan:
		1835	#
		1836	# /! non-realised random map exit (special hack!)
		1837	# {... are special paths that are not being touched
		1838	# ?xxx/... are special absolute paths
		1839	# ?random/... random maps
		1840	# /... normal maps
		1841	# ~user/... per-player map of a specific user
		1842
		1843	$path =~ s/$PATH_SEP/\//go;
		1844
		1845	# treat it as relative path if it starts with
		1846	# something that looks reasonable
		1847	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1848	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1849
		1850	$base =~ s{[^/]+/?$}{};
		1851	$path = "$base/$path";
		1852	}
		1853
		1854	for ($path) {
		1855	redo if s{//}{/};
		1856	redo if s{/\.?/}{/};
		1857	redo if s{/[^/]+/\.\./}{/};
		1858	}
		1859
		1860	$path
		1861	}
		1862
		1863	sub new_from_path {
		1864	my (undef, $path, $base) = @_;
		1865
		1866	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1867
		1868	$path = normalise $path, $base;
		1869
		1870	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1871	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1872	my $self = bless cf::map::new, $pkg;
		1873	$self->{path} = $path; $self->path ($path);
		1874	$self->init; # pass $1 etc.
		1875	return $self;
		1876	}
		1877	}
		1878
		1879	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1880	()
		1881	}
		1882
		1883	sub init {
		1884	my ($self) = @_;
		1885
		1886	$self
		1887	}
		1888
		1889	sub as_string {
		1890	my ($self) = @_;
		1891
		1892	"$self->{path}"
		1893	}
		1894
		1895	# the displayed name, this is a one way mapping
		1896	sub visible_name {
		1897	&as_string
		1898	}
		1899
		1900	# the original (read-only) location
		1901	sub load_path {
		1902	my ($self) = @_;
		1903
		1904	"$MAPDIR/$self->{path}.map"
		1905	}
		1906
		1907	# the temporary/swap location
		1908	sub save_path {
		1909	my ($self) = @_;
		1910
		1911	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1912	"$TMPDIR/$path.map"
		1913	}
		1914
		1915	# the unique path, undef == no special unique path
		1916	sub uniq_path {
		1917	my ($self) = @_;
		1918
		1919	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1920	"$UNIQUEDIR/$path"
1139	}	1921	}
1140		1922
1141	# and all this just because we cannot iterate over	1923	# and all this just because we cannot iterate over
1142	# all maps in C++...	1924	# all maps in C++...
1143	sub change_all_map_light {	1925	sub change_all_map_light {
…		…
1145		1927
1146	$_->change_map_light ($change)	1928	$_->change_map_light ($change)
1147	for grep $_->outdoor, values %cf::MAP;	1929	for grep $_->outdoor, values %cf::MAP;
1148	}	1930	}
1149		1931
		1932	sub decay_objects {
		1933	my ($self) = @_;
		1934
		1935	return if $self->{deny_reset};
		1936
		1937	$self->do_decay_objects;
		1938	}
		1939
		1940	sub unlink_save {
		1941	my ($self) = @_;
		1942
		1943	utf8::encode (my $save = $self->save_path);
		1944	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1945	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1946	}
		1947
1150	sub try_load_header($) {	1948	sub load_header_from($) {
1151	my ($path) = @_;	1949	my ($self, $path) = @_;
1152		1950
1153	utf8::encode $path;	1951	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1952	my $f = new_from_file cf::object::thawer $path
1155	or return;	1953	or return;
1156		1954
1157	my $map = cf::map::new	1955	$self->_load_header ($f)
1158	or return;	1956	or return;
1159		1957
1160	# for better error messages only, will be overwritten	1958	local $MAP_LOADING{$self->{path}} = $self;
1161	$map->path ($path);	1959	$f->resolve_delayed_derefs;
1162		1960
1163	$map->load_header ($path)	1961	$self->{load_path} = $path;
		1962
		1963	1
		1964	}
		1965
		1966	sub load_header_orig {
		1967	my ($self) = @_;
		1968
		1969	$self->load_header_from ($self->load_path)
		1970	}
		1971
		1972	sub load_header_temp {
		1973	my ($self) = @_;
		1974
		1975	$self->load_header_from ($self->save_path)
		1976	}
		1977
		1978	sub prepare_temp {
		1979	my ($self) = @_;
		1980
		1981	$self->last_access ((delete $self->{last_access})
		1982	|| $cf::RUNTIME); #d#
		1983	# safety
		1984	$self->{instantiate_time} = $cf::RUNTIME
		1985	if $self->{instantiate_time} > $cf::RUNTIME;
		1986	}
		1987
		1988	sub prepare_orig {
		1989	my ($self) = @_;
		1990
		1991	$self->{load_original} = 1;
		1992	$self->{instantiate_time} = $cf::RUNTIME;
		1993	$self->last_access ($cf::RUNTIME);
		1994	$self->instantiate;
		1995	}
		1996
		1997	sub load_header {
		1998	my ($self) = @_;
		1999
		2000	if ($self->load_header_temp) {
		2001	$self->prepare_temp;
		2002	} else {
		2003	$self->load_header_orig
1164	or return;	2004	or return;
		2005	$self->prepare_orig;
		2006	}
1165		2007
1166	$map->{load_path} = $path;	2008	$self->{deny_reset} = 1
		2009	if $self->no_reset;
1167		2010
1168	$map	2011	$self->default_region (cf::region::find_by_path $self->{path})
		2012	unless $self->default_region;
		2013
		2014	1
1169	}	2015	}
1170		2016
1171	sub find;	2017	sub find;
1172	sub find {	2018	sub find {
1173	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1174		2020
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	2021	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		2022
		2023	cf::lock_wait "map_data:$path";#d#remove
1180	cf::lock_wait "map_find:$key";	2024	cf::lock_wait "map_find:$path";
1181		2025
1182	$cf::MAP{$key} || do {	2026	$cf::MAP{$path} || do {
1183	my $guard = cf::lock_acquire "map_find:$key";	2027	my $guard1 = cf::lock_acquire "map_find:$path";
		2028	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1184		2029
1185	# do it the slow way	2030	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;	2031	or return;
1204		2032
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;	2033	$map->{last_save} = $cf::RUNTIME;
1217		2034
1218	Coro::cede;	2035	$map->load_header
		2036	or return;
1219		2037
1220	if ($map->should_reset) {	2038	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2039	# doing this can freeze the server in a sync job, obviously
		2040	#$cf::WAIT_FOR_TICK->wait;
		2041	undef $guard1;
		2042	undef $guard2;
1221	$map->reset;	2043	$map->reset;
1222	undef $guard;
1223	$map = find $path	2044	return find $path;
1224	or return;
1225	}	2045	}
1226		2046
1227	$cf::MAP{$key} = $map	2047	$cf::MAP{$path} = $map
1228	}	2048	}
1229	}	2049	}
		2050
		2051	sub pre_load { }
		2052	sub post_load { }
1230		2053
1231	sub load {	2054	sub load {
1232	my ($self) = @_;	2055	my ($self) = @_;
1233		2056
		2057	local $self->{deny_reset} = 1; # loading can take a long time
		2058
1234	my $path = $self->{path};	2059	my $path = $self->{path};
		2060
		2061	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2062	my $guard = cf::lock_acquire "map_data:$path";
1236		2063
		2064	return unless $self->valid;
1237	return if $self->in_memory != cf::MAP_SWAPPED;	2065	return unless $self->in_memory == cf::MAP_SWAPPED;
1238		2066
1239	$self->in_memory (cf::MAP_LOADING);	2067	$self->in_memory (cf::MAP_LOADING);
1240		2068
1241	$self->alloc;	2069	$self->alloc;
1242	$self->load_objects ($self->{load_path}, 1)	2070
		2071	$self->pre_load;
		2072	cf::cede_to_tick;
		2073
		2074	my $f = new_from_file cf::object::thawer $self->{load_path};
		2075	$f->skip_block;
		2076	$self->_load_objects ($f)
1243	or return;	2077	or return;
1244		2078
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2079	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	2080	if delete $self->{load_original};
1247		2081
1248	if (my $uniq = $path->uniq_path) {	2082	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	2083	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	2084	unless (aio_stat $uniq) {
		2085	if (my $f = new_from_file cf::object::thawer $uniq) {
1251	$self->clear_unique_items;	2086	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	2087	$self->_load_objects ($f);
		2088	$f->resolve_delayed_derefs;
		2089	}
1253	}	2090	}
1254	}	2091	}
1255		2092
1256	Coro::cede;	2093	$f->resolve_delayed_derefs;
1257		2094
		2095	cf::cede_to_tick;
1258	# now do the right thing for maps	2096	# now do the right thing for maps
1259	$self->link_multipart_objects;	2097	$self->link_multipart_objects;
1260
1261	if ($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)	2098	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	2099	unless $self->difficulty;
		2100	cf::cede_to_tick;
		2101
		2102	unless ($self->{deny_activate}) {
		2103	$self->decay_objects;
		2104	$self->fix_auto_apply;
		2105	$self->update_buttons;
		2106	cf::cede_to_tick;
		2107	$self->set_darkness_map;
		2108	cf::cede_to_tick;
1271	$self->activate;	2109	$self->activate;
1272	}	2110	}
1273		2111
1274	Coro::cede;	2112	$self->{last_save} = $cf::RUNTIME;
		2113	$self->last_access ($cf::RUNTIME);
1275		2114
1276	$self->in_memory (cf::MAP_IN_MEMORY);	2115	$self->in_memory (cf::MAP_IN_MEMORY);
		2116	}
		2117
		2118	$self->post_load;
		2119	}
		2120
		2121	sub customise_for {
		2122	my ($self, $ob) = @_;
		2123
		2124	return find "~" . $ob->name . "/" . $self->{path}
		2125	if $self->per_player;
		2126
		2127	# return find "?party/" . $ob->name . "/" . $self->{path}
		2128	# if $self->per_party;
		2129
		2130	$self
		2131	}
		2132
		2133	# find and load all maps in the 3x3 area around a map
		2134	sub load_neighbours {
		2135	my ($map) = @_;
		2136
		2137	my @neigh; # diagonal neighbours
		2138
		2139	for (0 .. 3) {
		2140	my $neigh = $map->tile_path ($_)
		2141	or next;
		2142	$neigh = find $neigh, $map
		2143	or next;
		2144	$neigh->load;
		2145
		2146	push @neigh,
		2147	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2148	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2149	}
		2150
		2151	for (grep defined $_->[0], @neigh) {
		2152	my ($path, $origin) = @$_;
		2153	my $neigh = find $path, $origin
		2154	or next;
		2155	$neigh->load;
		2156	}
1277	}	2157	}
1278		2158
1279	sub find_sync {	2159	sub find_sync {
1280	my ($path, $origin) = @_;	2160	my ($path, $origin) = @_;
1281		2161
1282	cf::sync_job { cf::map::find $path, $origin }	2162	cf::sync_job { find $path, $origin }
1283	}	2163	}
1284		2164
1285	sub do_load_sync {	2165	sub do_load_sync {
1286	my ($map) = @_;	2166	my ($map) = @_;
1287		2167
		2168	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2169	if $Coro::current == $Coro::main;
		2170
1288	cf::sync_job { $map->load };	2171	cf::sync_job { $map->load };
		2172	}
		2173
		2174	our %MAP_PREFETCH;
		2175	our $MAP_PREFETCHER = undef;
		2176
		2177	sub find_async {
		2178	my ($path, $origin, $load) = @_;
		2179
		2180	$path = normalise $path, $origin && $origin->{path};
		2181
		2182	if (my $map = $cf::MAP{$path}) {
		2183	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2184	}
		2185
		2186	$MAP_PREFETCH{$path} |= $load;
		2187
		2188	$MAP_PREFETCHER ||= cf::async {
		2189	$Coro::current->{desc} = "map prefetcher";
		2190
		2191	while (%MAP_PREFETCH) {
		2192	while (my ($k, $v) = each %MAP_PREFETCH) {
		2193	if (my $map = find $k) {
		2194	$map->load if $v;
		2195	}
		2196
		2197	delete $MAP_PREFETCH{$k};
		2198	}
		2199	}
		2200	undef $MAP_PREFETCHER;
		2201	};
		2202	$MAP_PREFETCHER->prio (6);
		2203
		2204	()
1289	}	2205	}
1290		2206
1291	sub save {	2207	sub save {
1292	my ($self) = @_;	2208	my ($self) = @_;
1293		2209
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	2210	my $lock = cf::lock_acquire "map_data:$self->{path}";
1295		2211
1296	$self->{last_save} = $cf::RUNTIME;	2212	$self->{last_save} = $cf::RUNTIME;
1297		2213
1298	return unless $self->dirty;	2214	return unless $self->dirty;
1299		2215
1300	my $save = $self->{path}->save_path; utf8::encode $save;	2216	my $save = $self->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2217	my $uniq = $self->uniq_path; utf8::encode $uniq;
1302		2218
1303	$self->{load_path} = $save;	2219	$self->{load_path} = $save;
1304		2220
1305	return if $self->{deny_save};	2221	return if $self->{deny_save};
1306		2222
1307	local $self->{last_access} = $self->last_access;#d#	2223	local $self->{last_access} = $self->last_access;#d#
1308		2224
		2225	cf::async {
		2226	$Coro::current->{desc} = "map player save";
		2227	$_->contr->save for $self->players;
		2228	};
		2229
1309	if ($uniq) {	2230	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2231	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);	2232	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {	2233	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2234	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}	2235	}
1315	}	2236	}
1316		2237
1317	sub swap_out {	2238	sub swap_out {
1318	my ($self) = @_;	2239	my ($self) = @_;
1319		2240
1320	# save first because save cedes	2241	# save first because save cedes
1321	$self->save;	2242	$self->save;
1322		2243
1323	my $lock = cf::lock_acquire "map_data:" . $self->path;	2244	my $lock = cf::lock_acquire "map_data:$self->{path}";
1324		2245
1325	return if $self->players;	2246	return if $self->players;
1326	return if $self->in_memory != cf::MAP_IN_MEMORY;	2247	return if $self->in_memory != cf::MAP_IN_MEMORY;
1327	return if $self->{deny_save};	2248	return if $self->{deny_save};
1328		2249
		2250	$self->in_memory (cf::MAP_SWAPPED);
		2251
		2252	$self->deactivate;
		2253	$_->clear_links_to ($self) for values %cf::MAP;
1329	$self->clear;	2254	$self->clear;
1330	$self->in_memory (cf::MAP_SWAPPED);
1331	}	2255	}
1332		2256
1333	sub reset_at {	2257	sub reset_at {
1334	my ($self) = @_;	2258	my ($self) = @_;
1335		2259
1336	# TODO: safety, remove and allow resettable per-player maps	2260	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};
1338	return 1e99 if $self->{deny_reset};	2261	return 1e99 if $self->{deny_reset};
1339		2262
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2263	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2264	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		2265
…		…
1347	my ($self) = @_;	2270	my ($self) = @_;
1348		2271
1349	$self->reset_at <= $cf::RUNTIME	2272	$self->reset_at <= $cf::RUNTIME
1350	}	2273	}
1351		2274
1352	sub unlink_save {
1353	my ($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	$self->save;
1371	}
1372
1373	sub reset {	2275	sub reset {
1374	my ($self) = @_;	2276	my ($self) = @_;
1375		2277
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	2278	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		2279
1378	return if $self->players;	2280	return if $self->players;
1379	return if $self->{path}{user_rel};#d#
1380		2281
1381	warn "resetting map ", $self->path;#d#	2282	warn "resetting map ", $self->path;
		2283
		2284	$self->in_memory (cf::MAP_SWAPPED);
		2285
		2286	# need to save uniques path
		2287	unless ($self->{deny_save}) {
		2288	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2289
		2290	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2291	if $uniq;
		2292	}
1382		2293
1383	delete $cf::MAP{$self->path};	2294	delete $cf::MAP{$self->path};
1384		2295
		2296	$self->deactivate;
1385	$_->clear_links_to ($self) for values %cf::MAP;	2297	$_->clear_links_to ($self) for values %cf::MAP;
		2298	$self->clear;
1386		2299
1387	$self->unlink_save;	2300	$self->unlink_save;
1388	$self->destroy;	2301	$self->destroy;
1389	}	2302	}
1390		2303
1391	my $nuke_counter = "aaaa";	2304	my $nuke_counter = "aaaa";
1392		2305
1393	sub nuke {	2306	sub nuke {
1394	my ($self) = @_;	2307	my ($self) = @_;
1395		2308
		2309	{
		2310	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2311
		2312	delete $cf::MAP{$self->path};
		2313
		2314	$self->unlink_save;
		2315
		2316	bless $self, "cf::map";
		2317	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	2318	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	2319	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	2320	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2321
		2322	$cf::MAP{$self->path} = $self;
		2323	}
		2324
1399	$self->reset; # polite request, might not happen	2325	$self->reset; # polite request, might not happen
1400	}	2326	}
1401		2327
1402	sub customise_for {	2328	=item $maps = cf::map::tmp_maps
1403	my ($map, $ob) = @_;
1404		2329
1405	if ($map->per_player) {	2330	Returns an arrayref with all map paths of currently instantiated and saved
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2331	maps. May block.
		2332
		2333	=cut
		2334
		2335	sub tmp_maps() {
1407	}	2336	[
1408		2337	map {
1409	$map	2338	utf8::decode $_;
		2339	/\.map$/
		2340	? normalise $_
		2341	: ()
		2342	} @{ aio_readdir $TMPDIR or [] }
		2343	]
1410	}	2344	}
1411		2345
1412	sub emergency_save {	2346	=item $maps = cf::map::random_maps
1413	my $freeze_guard = cf::freeze_mainloop;
1414		2347
1415	warn "enter emergency map save\n";	2348	Returns an arrayref with all map paths of currently instantiated and saved
		2349	random maps. May block.
1416		2350
1417	cf::sync_job {	2351	=cut
1418	warn "begin emergency map save\n";	2352
1419	$_->save for values %cf::MAP;	2353	sub random_maps() {
		2354	[
		2355	map {
		2356	utf8::decode $_;
		2357	/\.map$/
		2358	? normalise "?random/$_"
		2359	: ()
		2360	} @{ aio_readdir $RANDOMDIR or [] }
		2361	]
		2362	}
		2363
		2364	=item cf::map::unique_maps
		2365
		2366	Returns an arrayref of paths of all shared maps that have
		2367	instantiated unique items. May block.
		2368
		2369	=cut
		2370
		2371	sub unique_maps() {
		2372	[
		2373	map {
		2374	utf8::decode $_;
		2375	/\.map$/
		2376	? normalise $_
		2377	: ()
		2378	} @{ aio_readdir $UNIQUEDIR or [] }
		2379	]
		2380	}
		2381
		2382	=back
		2383
		2384	=head3 cf::object
		2385
		2386	=cut
		2387
		2388	package cf::object;
		2389
		2390	=over 4
		2391
		2392	=item $ob->inv_recursive
		2393
		2394	Returns the inventory of the object _and_ their inventories, recursively.
		2395
		2396	=cut
		2397
		2398	sub inv_recursive_;
		2399	sub inv_recursive_ {
		2400	map { $_, inv_recursive_ $_->inv } @_
		2401	}
		2402
		2403	sub inv_recursive {
		2404	inv_recursive_ inv $_[0]
		2405	}
		2406
		2407	=item $ref = $ob->ref
		2408
		2409	creates and returns a persistent reference to an objetc that can be stored as a string.
		2410
		2411	=item $ob = cf::object::deref ($refstring)
		2412
		2413	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2414	even if the object actually exists. May block.
		2415
		2416	=cut
		2417
		2418	sub deref {
		2419	my ($ref) = @_;
		2420
		2421	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2422	my ($uuid, $name) = ($1, $2);
		2423	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2424	or return;
		2425	$pl->ob->uuid eq $uuid
		2426	or return;
		2427
		2428	$pl->ob
		2429	} else {
		2430	warn "$ref: cannot resolve object reference\n";
		2431	undef
1420	};	2432	}
1421
1422	warn "end emergency map save\n";
1423	}	2433	}
1424		2434
1425	package cf;	2435	package cf;
1426		2436
1427	=back	2437	=back
1428
1429		2438
1430	=head3 cf::object::player	2439	=head3 cf::object::player
1431		2440
1432	=over 4	2441	=over 4
1433		2442
…		…
1447		2456
1448	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2457	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1449		2458
1450	if ($self->{record_replies}) {	2459	if ($self->{record_replies}) {
1451	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2460	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2461
1452	} else {	2462	} else {
		2463	my $pl = $self->contr;
		2464
		2465	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2466	my $dialog = $pl->{npc_dialog};
		2467	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2468
		2469	} else {
1453	$msg = $npc->name . " says: $msg" if $npc;	2470	$msg = $npc->name . " says: $msg" if $npc;
1454	$self->message ($msg, $flags);	2471	$self->message ($msg, $flags);
		2472	}
1455	}	2473	}
		2474	}
		2475
		2476	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2477
		2478	=cut
		2479
		2480	sub cf::object::send_msg {
		2481	my $pl = shift->contr
		2482	or return;
		2483	$pl->send_msg (@_);
1456	}	2484	}
1457		2485
1458	=item $player_object->may ("access")	2486	=item $player_object->may ("access")
1459		2487
1460	Returns wether the given player is authorized to access resource "access"	2488	Returns wether the given player is authorized to access resource "access"
…		…
1473		2501
1474	=item $player_object->enter_link	2502	=item $player_object->enter_link
1475		2503
1476	Freezes the player and moves him/her to a special map (C<{link}>).	2504	Freezes the player and moves him/her to a special map (C<{link}>).
1477		2505
1478	The player should be reaosnably safe there for short amounts of time. You	2506	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.	2507	I<MUST> call C<leave_link> as soon as possible, though.
1480		2508
		2509	Will never block.
		2510
1481	=item $player_object->leave_link ($map, $x, $y)	2511	=item $player_object->leave_link ($map, $x, $y)
1482		2512
1483	Moves the player out of the specila link map onto the given map. If the	2513	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	2514	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	2515	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	2516	fails, to the emergency map position.
1487		2517
1488	Might block.	2518	Might block.
1489		2519
1490	=cut	2520	=cut
		2521
		2522	sub link_map {
		2523	unless ($LINK_MAP) {
		2524	$LINK_MAP = cf::map::find "{link}"
		2525	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2526	$LINK_MAP->load;
		2527	}
		2528
		2529	$LINK_MAP
		2530	}
1491		2531
1492	sub cf::object::player::enter_link {	2532	sub cf::object::player::enter_link {
1493	my ($self) = @_;	2533	my ($self) = @_;
1494		2534
1495	$self->deactivate_recursive;	2535	$self->deactivate_recursive;
1496		2536
1497	return if $self->map == $LINK_MAP;	2537	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		2538
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2539	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	2540	if $self->map && $self->map->{path} ne "{link}";
1501		2541
1502	$self->enter_map ($LINK_MAP, 20, 20);	2542	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1503	}	2543	}
1504		2544
1505	sub cf::object::player::leave_link {	2545	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	2546	my ($self, $map, $x, $y) = @_;
		2547
		2548	return unless $self->contr->active;
1507		2549
1508	my $link_pos = delete $self->{_link_pos};	2550	my $link_pos = delete $self->{_link_pos};
1509		2551
1510	unless ($map) {	2552	unless ($map) {
1511	# restore original map position	2553	# restore original map position
…		…
1525	# use -1 or undef as default coordinates, not 0, 0	2567	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	2568	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	2569	if $x <=0 && $y <= 0;
1528		2570
1529	$map->load;	2571	$map->load;
		2572	$map->load_neighbours;
1530		2573
		2574	return unless $self->contr->active;
1531	$self->activate_recursive;	2575	$self->activate_recursive;
		2576
		2577	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1532	$self->enter_map ($map, $x, $y);	2578	$self->enter_map ($map, $x, $y);
1533	}	2579	}
1534		2580
1535	cf::player->attach (	2581	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1536	on_logout => sub {
1537	my ($pl) = @_;
1538		2582
1539	# abort map switching before logout	2583	Moves the player to the given map-path and coordinates by first freezing
1540	if ($pl->ob->{_link_pos}) {	2584	her, loading and preparing them map, calling the provided $check callback
1541	cf::sync_job {	2585	that has to return the map if sucecssful, and then unfreezes the player on
1542	$pl->ob->leave_link	2586	the new (success) or old (failed) map position. In either case, $done will
1543	};	2587	be called at the end of this process.
1544	}
1545	},
1546	on_login => sub {
1547	my ($pl) = @_;
1548		2588
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	2589	=cut
		2590
		2591	our $GOTOGEN;
1571		2592
1572	sub cf::object::player::goto {	2593	sub cf::object::player::goto {
1573	my ($self, $path, $x, $y) = @_;	2594	my ($self, $path, $x, $y, $check, $done) = @_;
		2595
		2596	# do generation counting so two concurrent goto's will be executed in-order
		2597	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1574		2598
1575	$self->enter_link;	2599	$self->enter_link;
1576		2600
1577	(async {	2601	(async {
1578	$path = new cf::path $path;	2602	$Coro::current->{desc} = "player::goto $path $x $y";
1579		2603
1580	my $map = cf::map::find $path->as_string;	2604	# *tag paths override both path and x|y
		2605	if ($path =~ /^\*(.*)$/) {
		2606	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2607	my $ob = $obs[rand @obs];
		2608
		2609	# see if we actually can go there
		2610	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2611	$ob = $obs[rand @obs];
		2612	} else {
		2613	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2614	}
		2615	# else put us there anyways for now #d#
		2616
		2617	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2618	} else {
		2619	($path, $x, $y) = (undef, undef, undef);
		2620	}
		2621	}
		2622
		2623	my $map = eval {
		2624	my $map = defined $path ? cf::map::find $path : undef;
		2625
		2626	if ($map) {
1581	$map = $map->customise_for ($self) if $map;	2627	$map = $map->customise_for ($self);
1582		2628	$map = $check->($map) if $check && $map;
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	2629	} else {
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2630	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	}
1587		2632
		2633	$map
		2634	};
		2635
		2636	if ($@) {
		2637	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2638	LOG llevError | logBacktrace, Carp::longmess $@;
		2639	}
		2640
		2641	if ($gen == $self->{_goto_generation}) {
		2642	delete $self->{_goto_generation};
1588	$self->leave_link ($map, $x, $y);	2643	$self->leave_link ($map, $x, $y);
		2644	}
		2645
		2646	$done->() if $done;
1589	})->prio (1);	2647	})->prio (1);
1590	}	2648	}
1591		2649
1592	=item $player_object->enter_exit ($exit_object)	2650	=item $player_object->enter_exit ($exit_object)
1593		2651
…		…
1595		2653
1596	sub parse_random_map_params {	2654	sub parse_random_map_params {
1597	my ($spec) = @_;	2655	my ($spec) = @_;
1598		2656
1599	my $rmp = { # defaults	2657	my $rmp = { # defaults
1600	xsize => 10,	2658	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	2659	ysize => (cf::rndm 15, 40),
		2660	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2661	#layout => string,
1602	};	2662	};
1603		2663
1604	for (split /\n/, $spec) {	2664	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	2665	my ($k, $v) = split /\s+/, $_, 2;
1606		2666
…		…
1610	$rmp	2670	$rmp
1611	}	2671	}
1612		2672
1613	sub prepare_random_map {	2673	sub prepare_random_map {
1614	my ($exit) = @_;	2674	my ($exit) = @_;
		2675
		2676	my $guard = cf::lock_acquire "exit_prepare:$exit";
1615		2677
1616	# all this does is basically replace the /! path by	2678	# all this does is basically replace the /! path by
1617	# a new random map path (?random/...) with a seed	2679	# a new random map path (?random/...) with a seed
1618	# that depends on the exit object	2680	# that depends on the exit object
1619		2681
1620	my $rmp = parse_random_map_params $exit->msg;	2682	my $rmp = parse_random_map_params $exit->msg;
1621		2683
1622	if ($exit->map) {	2684	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2685	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2686	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2687	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2688	$rmp->{origin_y} = $exit->y;
1627	}	2689	}
1628		2690
1629	$rmp->{random_seed} ||= $exit->random_seed;	2691	$rmp->{random_seed} ||= $exit->random_seed;
1630		2692
1631	my $data = cf::to_json $rmp;	2693	my $data = cf::encode_json $rmp;
1632	my $md5 = Digest::MD5::md5_hex $data;	2694	my $md5 = Digest::MD5::md5_hex $data;
		2695	my $meta = "$RANDOMDIR/$md5.meta";
1633		2696
1634	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2697	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1635	aio_write $fh, 0, (length $data), $data, 0;	2698	aio_write $fh, 0, (length $data), $data, 0;
		2699	undef $fh;
		2700	aio_rename "$meta~", $meta;
1636		2701
1637	$exit->slaying ("?random/$md5");	2702	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	2703	$exit->msg (undef);
1639	}	2704	}
1640	}	2705	}
…		…
1642	sub cf::object::player::enter_exit {	2707	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	2708	my ($self, $exit) = @_;
1644		2709
1645	return unless $self->type == cf::PLAYER;	2710	return unless $self->type == cf::PLAYER;
1646		2711
		2712	if ($exit->slaying eq "/!") {
		2713	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2714	# the problem is that $exit might not survive long enough
		2715	# so it needs to be done right now, right here
		2716	cf::sync_job { prepare_random_map $exit };
		2717	}
		2718
		2719	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2720	my $hp = $exit->stats->hp;
		2721	my $sp = $exit->stats->sp;
		2722
1647	$self->enter_link;	2723	$self->enter_link;
1648		2724
		2725	# if exit is damned, update players death & WoR home-position
		2726	$self->contr->savebed ($slaying, $hp, $sp)
		2727	if $exit->flag (FLAG_DAMNED);
		2728
1649	(async {	2729	(async {
		2730	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2731
1650	$self->deactivate_recursive; # just to be sure	2732	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2733	unless (eval {
1652	prepare_random_map $exit	2734	$self->goto ($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		2735
1658	1;	2736	1;
1659	}) {	2737	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2738	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2739	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2740	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2741	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2742
1665	warn "ERROR in enter_exit: $@";	2743	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2744	$self->leave_link;
1667	}	2745	}
1668	})->prio (1);	2746	})->prio (1);
…		…
1681		2759
1682	sub cf::client::send_drawinfo {	2760	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2761	my ($self, $text, $flags) = @_;
1684		2762
1685	utf8::encode $text;	2763	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2764	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2765	}
1688		2766
		2767	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2768
		2769	Send a drawinfo or msg packet to the client, formatting the msg for the
		2770	client if neccessary. C<$type> should be a string identifying the type of
		2771	the message, with C<log> being the default. If C<$color> is negative, suppress
		2772	the message unless the client supports the msg packet.
		2773
		2774	=cut
		2775
		2776	# non-persistent channels (usually the info channel)
		2777	our %CHANNEL = (
		2778	"c/identify" => {
		2779	id => "infobox",
		2780	title => "Identify",
		2781	reply => undef,
		2782	tooltip => "Items recently identified",
		2783	},
		2784	"c/examine" => {
		2785	id => "infobox",
		2786	title => "Examine",
		2787	reply => undef,
		2788	tooltip => "Signs and other items you examined",
		2789	},
		2790	"c/book" => {
		2791	id => "infobox",
		2792	title => "Book",
		2793	reply => undef,
		2794	tooltip => "The contents of a note or book",
		2795	},
		2796	"c/lookat" => {
		2797	id => "infobox",
		2798	title => "Look",
		2799	reply => undef,
		2800	tooltip => "What you saw there",
		2801	},
		2802	"c/who" => {
		2803	id => "infobox",
		2804	title => "Players",
		2805	reply => undef,
		2806	tooltip => "Shows players who are currently online",
		2807	},
		2808	"c/body" => {
		2809	id => "infobox",
		2810	title => "Body Parts",
		2811	reply => undef,
		2812	tooltip => "Shows which body parts you posess and are available",
		2813	},
		2814	"c/uptime" => {
		2815	id => "infobox",
		2816	title => "Uptime",
		2817	reply => undef,
		2818	tooltip => "How long the server has been running since last restart",
		2819	},
		2820	"c/mapinfo" => {
		2821	id => "infobox",
		2822	title => "Map Info",
		2823	reply => undef,
		2824	tooltip => "Information related to the maps",
		2825	},
		2826	);
		2827
		2828	sub cf::client::send_msg {
		2829	my ($self, $channel, $msg, $color, @extra) = @_;
		2830
		2831	$msg = $self->pl->expand_cfpod ($msg);
		2832
		2833	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2834
		2835	# check predefined channels, for the benefit of C
		2836	if ($CHANNEL{$channel}) {
		2837	$channel = $CHANNEL{$channel};
		2838
		2839	$self->ext_msg (channel_info => $channel)
		2840	if $self->can_msg;
		2841
		2842	$channel = $channel->{id};
		2843
		2844	} elsif (ref $channel) {
		2845	# send meta info to client, if not yet sent
		2846	unless (exists $self->{channel}{$channel->{id}}) {
		2847	$self->{channel}{$channel->{id}} = $channel;
		2848	$self->ext_msg (channel_info => $channel)
		2849	if $self->can_msg;
		2850	}
		2851
		2852	$channel = $channel->{id};
		2853	}
		2854
		2855	return unless @extra || length $msg;
		2856
		2857	if ($self->can_msg) {
		2858	# default colour, mask it out
		2859	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2860	if $color & cf::NDI_DEF;
		2861
		2862	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2863	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2864	} else {
		2865	if ($color >= 0) {
		2866	# replace some tags by gcfclient-compatible ones
		2867	for ($msg) {
		2868	1 while
		2869	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2870	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2871	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2872	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2873	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2874	}
		2875
		2876	$color &= cf::NDI_COLOR_MASK;
		2877
		2878	utf8::encode $msg;
		2879
		2880	if (0 && $msg =~ /\[/) {
		2881	# COMMAND/INFO
		2882	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2883	} else {
		2884	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2885	$self->send_packet ("drawinfo $color $msg")
		2886	}
		2887	}
		2888	}
		2889	}
		2890
		2891	=item $client->ext_msg ($type, @msg)
		2892
		2893	Sends an ext event to the client.
		2894
		2895	=cut
		2896
		2897	sub cf::client::ext_msg($$@) {
		2898	my ($self, $type, @msg) = @_;
		2899
		2900	if ($self->extcmd == 2) {
		2901	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2902	} elsif ($self->extcmd == 1) { # TODO: remove
		2903	push @msg, msgtype => "event_$type";
		2904	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2905	}
		2906	}
		2907
		2908	=item $client->ext_reply ($msgid, @msg)
		2909
		2910	Sends an ext reply to the client.
		2911
		2912	=cut
		2913
		2914	sub cf::client::ext_reply($$@) {
		2915	my ($self, $id, @msg) = @_;
		2916
		2917	if ($self->extcmd == 2) {
		2918	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2919	} elsif ($self->extcmd == 1) {
		2920	#TODO: version 1, remove
		2921	unshift @msg, msgtype => "reply", msgid => $id;
		2922	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2923	}
		2924	}
1689		2925
1690	=item $success = $client->query ($flags, "text", \&cb)	2926	=item $success = $client->query ($flags, "text", \&cb)
1691		2927
1692	Queues a query to the client, calling the given callback with	2928	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>,	2929	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>.	2930	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		2931
1696	Queries can fail, so check the return code. Or don't, as queries will become	2932	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	2933	become reliable at some point in the future.
1698		2934
1699	=cut	2935	=cut
1700		2936
1701	sub cf::client::query {	2937	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	2938	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	2946	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2947	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		2948
1713	$self->send_packet ($self->{query_queue}[0][0])	2949	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	2950	if @{ $self->{query_queue} } == 1;
		2951
		2952	1
1715	}	2953	}
1716		2954
1717	cf::client->attach (	2955	cf::client->attach (
		2956	on_connect => sub {
		2957	my ($ns) = @_;
		2958
		2959	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2960	},
1718	on_reply => sub {	2961	on_reply => sub {
1719	my ($ns, $msg) = @_;	2962	my ($ns, $msg) = @_;
1720		2963
1721	# this weird shuffling is so that direct followup queries	2964	# this weird shuffling is so that direct followup queries
1722	# get handled first	2965	# get handled first
1723	my $queue = delete $ns->{query_queue}	2966	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2967	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2968
1726	(shift @$queue)->[1]->($msg);	2969	(shift @$queue)->[1]->($msg);
		2970	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2971
1728	push @{ $ns->{query_queue} }, @$queue;	2972	push @{ $ns->{query_queue} }, @$queue;
1729		2973
1730	if (@{ $ns->{query_queue} } == @$queue) {	2974	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2975	if (@$queue) {
…		…
1733	} else {	2977	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2978	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	2979	}
1736	}	2980	}
1737	},	2981	},
		2982	on_exticmd => sub {
		2983	my ($ns, $buf) = @_;
		2984
		2985	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2986
		2987	if (ref $msg) {
		2988	my ($type, $reply, @payload) =
		2989	"ARRAY" eq ref $msg
		2990	? @$msg
		2991	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2992
		2993	my @reply;
		2994
		2995	if (my $cb = $EXTICMD{$type}) {
		2996	@reply = $cb->($ns, @payload);
		2997	}
		2998
		2999	$ns->ext_reply ($reply, @reply)
		3000	if $reply;
		3001
		3002	} else {
		3003	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3004	}
		3005
		3006	cf::override;
		3007	},
1738	);	3008	);
1739		3009
1740	=item $client->async (\&cb)	3010	=item $client->async (\&cb)
1741		3011
1742	Create a new coroutine, running the specified callback. The coroutine will	3012	Create a new coroutine, running the specified callback. The coroutine will
…		…
1783	our $safe = new Safe "safe";	3053	our $safe = new Safe "safe";
1784	our $safe_hole = new Safe::Hole;	3054	our $safe_hole = new Safe::Hole;
1785		3055
1786	$SIG{FPE} = 'IGNORE';	3056	$SIG{FPE} = 'IGNORE';
1787		3057
1788	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3058	$safe->permit_only (Opcode::opset qw(
		3059	:base_core :base_mem :base_orig :base_math
		3060	grepstart grepwhile mapstart mapwhile
		3061	sort time
		3062	));
1789		3063
1790	# here we export the classes and methods available to script code	3064	# here we export the classes and methods available to script code
1791		3065
1792	=pod	3066	=pod
1793		3067
1794	The following fucntions and emthods are available within a safe environment:	3068	The following functions and methods are available within a safe environment:
1795		3069
1796	cf::object contr pay_amount pay_player map	3070	cf::object
		3071	contr pay_amount pay_player map x y force_find force_add destroy
		3072	insert remove name archname title slaying race decrease_ob_nr
		3073
1797	cf::object::player player	3074	cf::object::player
1798	cf::player peaceful	3075	player
1799	cf::map trigger	3076
		3077	cf::player
		3078	peaceful
		3079
		3080	cf::map
		3081	trigger
1800		3082
1801	=cut	3083	=cut
1802		3084
1803	for (	3085	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	3086	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3087	insert remove inv name archname title slaying race
		3088	decrease_ob_nr destroy)],
1805	["cf::object::player" => qw(player)],	3089	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	3090	["cf::player" => qw(peaceful)],
1807	["cf::map" => qw(trigger)],	3091	["cf::map" => qw(trigger)],
1808	) {	3092	) {
1809	no strict 'refs';	3093	no strict 'refs';
…		…
1880	=back	3164	=back
1881		3165
1882	=cut	3166	=cut
1883		3167
1884	#############################################################################	3168	#############################################################################
		3169	# the server's init and main functions
1885		3170
1886	=head2 EXTENSION DATABASE SUPPORT	3171	sub load_facedata($) {
		3172	my ($path) = @_;
1887		3173
1888	Crossfire maintains a very simple database for extension use. It can	3174	# HACK to clear player env face cache, we need some signal framework
1889	currently store anything that can be serialised using Storable, which	3175	# for this (global event?)
1890	excludes objects.	3176	%ext::player_env::MUSIC_FACE_CACHE = ();
1891		3177
1892	The parameter C<$family> should best start with the name of the extension	3178	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1893	using it, it should be unique.
1894		3179
1895	=over 4	3180	warn "loading facedata from $path\n";
1896		3181
1897	=item $hashref = cf::db_get $family	3182	my $facedata;
		3183	0 < aio_load $path, $facedata
		3184	or die "$path: $!";
1898		3185
1899	Return a hashref for use by the extension C<$family>, which can be	3186	$facedata = Coro::Storable::thaw $facedata;
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902		3187
1903	=item $value = cf::db_get $family => $key	3188	$facedata->{version} == 2
		3189	or cf::cleanup "$path: version mismatch, cannot proceed.";
1904		3190
1905	Returns a single value from the database	3191	# patch in the exptable
1906		3192	$facedata->{resource}{"res/exp_table"} = {
1907	=item cf::db_put $family => $hashref	3193	type => FT_RSRC,
1908		3194	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	});	3195	};
		3196	cf::cede_to_tick;
1958		3197
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}	3198	{
		3199	my $faces = $facedata->{faceinfo};
1963		3200
1964	sub db_get($;$) {	3201	while (my ($face, $info) = each %$faces) {
1965	@_ >= 2	3202	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		3203
1970	sub db_put($$;$) {	3204	cf::face::set_visibility $idx, $info->{visibility};
1971	if (@_ >= 3) {	3205	cf::face::set_magicmap $idx, $info->{magicmap};
1972	$DB->{$_[0]}{$_[1]} = $_[2];	3206	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1973	} else {	3207	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		3208
1979	cf::global->attach (	3209	cf::cede_to_tick;
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	3210	}
1984	);
1985	}
1986		3211
1987	#############################################################################	3212	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	3213	next unless $info->{smooth};
1989		3214
1990	sub cfg_load {	3215	my $idx = cf::face::find $face
		3216	or next;
		3217
		3218	if (my $smooth = cf::face::find $info->{smooth}) {
		3219	cf::face::set_smooth $idx, $smooth;
		3220	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3221	} else {
		3222	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3223	}
		3224
		3225	cf::cede_to_tick;
		3226	}
		3227	}
		3228
		3229	{
		3230	my $anims = $facedata->{animinfo};
		3231
		3232	while (my ($anim, $info) = each %$anims) {
		3233	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3234	cf::cede_to_tick;
		3235	}
		3236
		3237	cf::anim::invalidate_all; # d'oh
		3238	}
		3239
		3240	{
		3241	# TODO: for gcfclient pleasure, we should give resources
		3242	# that gcfclient doesn't grok a >10000 face index.
		3243	my $res = $facedata->{resource};
		3244
		3245	while (my ($name, $info) = each %$res) {
		3246	if (defined $info->{type}) {
		3247	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3248	my $data;
		3249
		3250	if ($info->{type} & 1) {
		3251	# prepend meta info
		3252
		3253	my $meta = $enc->encode ({
		3254	name => $name,
		3255	%{ $info->{meta} || {} },
		3256	});
		3257
		3258	$data = pack "(w/a*)*", $meta, $info->{data};
		3259	} else {
		3260	$data = $info->{data};
		3261	}
		3262
		3263	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3264	cf::face::set_type $idx, $info->{type};
		3265	} else {
		3266	$RESOURCE{$name} = $info;
		3267	}
		3268
		3269	cf::cede_to_tick;
		3270	}
		3271	}
		3272
		3273	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3274
		3275	1
		3276	}
		3277
		3278	cf::global->attach (on_resource_update => sub {
		3279	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3280	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3281
		3282	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3283	my $sound = $soundconf->{compat}[$_]
		3284	or next;
		3285
		3286	my $face = cf::face::find "sound/$sound->[1]";
		3287	cf::sound::set $sound->[0] => $face;
		3288	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3289	}
		3290
		3291	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3292	my $face = cf::face::find "sound/$v";
		3293	cf::sound::set $k => $face;
		3294	}
		3295	}
		3296	});
		3297
		3298	register_exticmd fx_want => sub {
		3299	my ($ns, $want) = @_;
		3300
		3301	while (my ($k, $v) = each %$want) {
		3302	$ns->fx_want ($k, $v);
		3303	}
		3304	};
		3305
		3306	sub reload_regions {
		3307	# HACK to clear player env face cache, we need some signal framework
		3308	# for this (global event?)
		3309	%ext::player_env::MUSIC_FACE_CACHE = ();
		3310
		3311	load_resource_file "$MAPDIR/regions"
		3312	or die "unable to load regions file\n";
		3313
		3314	for (cf::region::list) {
		3315	$_->{match} = qr/$_->{match}/
		3316	if exists $_->{match};
		3317	}
		3318	}
		3319
		3320	sub reload_facedata {
		3321	load_facedata "$DATADIR/facedata"
		3322	or die "unable to load facedata\n";
		3323	}
		3324
		3325	sub reload_archetypes {
		3326	load_resource_file "$DATADIR/archetypes"
		3327	or die "unable to load archetypes\n";
		3328	#d# NEED to laod twice to resolve forward references
		3329	# this really needs to be done in an extra post-pass
		3330	# (which needs to be synchronous, so solve it differently)
		3331	load_resource_file "$DATADIR/archetypes"
		3332	or die "unable to load archetypes\n";
		3333	}
		3334
		3335	sub reload_treasures {
		3336	load_resource_file "$DATADIR/treasures"
		3337	or die "unable to load treasurelists\n";
		3338	}
		3339
		3340	sub reload_resources {
		3341	warn "reloading resource files...\n";
		3342
		3343	reload_regions;
		3344	reload_facedata;
		3345	#reload_archetypes;#d#
		3346	reload_archetypes;
		3347	reload_treasures;
		3348
		3349	warn "finished reloading resource files\n";
		3350	}
		3351
		3352	sub init {
		3353	reload_resources;
		3354	}
		3355
		3356	sub reload_config {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	3357	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	3358	or return;
1993		3359
1994	local $/;	3360	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	3361	*CFG = YAML::Load <$fh>;
1996		3362
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3363	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1998		3364
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3365	$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};	3366	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		3367
2002	if (exists $CFG{mlockall}) {	3368	if (exists $CFG{mlockall}) {
2003	eval {	3369	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	3370	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	3371	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	3372	};
2007	warn $@ if $@;	3373	warn $@ if $@;
2008	}	3374	}
2009	}	3375	}
2010		3376
2011	sub main {	3377	sub main {
2012	# we must not ever block the main coroutine	3378	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	3379	local $Coro::idle = sub {
2014	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3380	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2015	async { Event::one_event };	3381	(async {
		3382	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3383	EV::loop EV::LOOP_ONESHOT;
		3384	})->prio (Coro::PRIO_MAX);
2016	};	3385	};
2017		3386
2018	cfg_load;	3387	reload_config;
2019	db_load;	3388	db_init;
2020	load_extensions;	3389	load_extensions;
		3390
		3391	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3392	evthread_start IO::AIO::poll_fileno;
2021	Event::loop;	3393	EV::loop;
2022	}	3394	}
2023		3395
2024	#############################################################################	3396	#############################################################################
2025	# initialisation	3397	# initialisation and cleanup
2026		3398
		3399	# install some emergency cleanup handlers
		3400	BEGIN {
		3401	our %SIGWATCHER = ();
		3402	for my $signal (qw(INT HUP TERM)) {
		3403	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3404	cf::cleanup "SIG$signal";
		3405	};
		3406	}
		3407	}
		3408
		3409	sub write_runtime {
		3410	my $runtime = "$LOCALDIR/runtime";
		3411
		3412	# first touch the runtime file to show we are still running:
		3413	# the fsync below can take a very very long time.
		3414
		3415	IO::AIO::aio_utime $runtime, undef, undef;
		3416
		3417	my $guard = cf::lock_acquire "write_runtime";
		3418
		3419	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3420	or return;
		3421
		3422	my $value = $cf::RUNTIME + 90 + 10;
		3423	# 10 is the runtime save interval, for a monotonic clock
		3424	# 60 allows for the watchdog to kill the server.
		3425
		3426	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3427	and return;
		3428
		3429	# always fsync - this file is important
		3430	aio_fsync $fh
		3431	and return;
		3432
		3433	# touch it again to show we are up-to-date
		3434	aio_utime $fh, undef, undef;
		3435
		3436	close $fh
		3437	or return;
		3438
		3439	aio_rename "$runtime~", $runtime
		3440	and return;
		3441
		3442	warn "runtime file written.\n";
		3443
		3444	1
		3445	}
		3446
		3447	our $uuid_lock;
		3448	our $uuid_skip;
		3449
		3450	sub write_uuid_sync($) {
		3451	$uuid_skip ||= $_[0];
		3452
		3453	return if $uuid_lock;
		3454	local $uuid_lock = 1;
		3455
		3456	my $uuid = "$LOCALDIR/uuid";
		3457
		3458	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3459	or return;
		3460
		3461	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3462	$uuid_skip = 0;
		3463
		3464	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3465	and return;
		3466
		3467	# always fsync - this file is important
		3468	aio_fsync $fh
		3469	and return;
		3470
		3471	close $fh
		3472	or return;
		3473
		3474	aio_rename "$uuid~", $uuid
		3475	and return;
		3476
		3477	warn "uuid file written ($value).\n";
		3478
		3479	1
		3480
		3481	}
		3482
		3483	sub write_uuid($$) {
		3484	my ($skip, $sync) = @_;
		3485
		3486	$sync ? write_uuid_sync $skip
		3487	: async { write_uuid_sync $skip };
		3488	}
		3489
		3490	sub emergency_save() {
		3491	my $freeze_guard = cf::freeze_mainloop;
		3492
		3493	warn "enter emergency perl save\n";
		3494
		3495	cf::sync_job {
		3496	# use a peculiar iteration method to avoid tripping on perl
		3497	# refcount bugs in for. also avoids problems with players
		3498	# and maps saved/destroyed asynchronously.
		3499	warn "begin emergency player save\n";
		3500	for my $login (keys %cf::PLAYER) {
		3501	my $pl = $cf::PLAYER{$login} or next;
		3502	$pl->valid or next;
		3503	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3504	$pl->save;
		3505	}
		3506	warn "end emergency player save\n";
		3507
		3508	warn "begin emergency map save\n";
		3509	for my $path (keys %cf::MAP) {
		3510	my $map = $cf::MAP{$path} or next;
		3511	$map->valid or next;
		3512	$map->save;
		3513	}
		3514	warn "end emergency map save\n";
		3515
		3516	warn "begin emergency database checkpoint\n";
		3517	BDB::db_env_txn_checkpoint $DB_ENV;
		3518	warn "end emergency database checkpoint\n";
		3519
		3520	warn "begin write uuid\n";
		3521	write_uuid_sync 1;
		3522	warn "end write uuid\n";
		3523	};
		3524
		3525	warn "leave emergency perl save\n";
		3526	}
		3527
		3528	sub post_cleanup {
		3529	my ($make_core) = @_;
		3530
		3531	warn Carp::longmess "post_cleanup backtrace"
		3532	if $make_core;
		3533	}
		3534
2027	sub reload() {	3535	sub do_reload_perl() {
2028	# can/must only be called in main	3536	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	3537	if ($Coro::current != $Coro::main) {
2030	warn "can only reload from main coroutine\n";	3538	warn "can only reload from main coroutine";
2031	return;	3539	return;
2032	}	3540	}
2033		3541
2034	warn "reloading...";	3542	warn "reloading...";
2035		3543
2036	my $guard = freeze_mainloop;	3544	warn "entering sync_job";
		3545
		3546	cf::sync_job {
		3547	cf::write_runtime; # external watchdog should not bark
2037	cf::emergency_save;	3548	cf::emergency_save;
		3549	cf::write_runtime; # external watchdog should not bark
2038		3550
2039	eval {	3551	warn "syncing database to disk";
		3552	BDB::db_env_txn_checkpoint $DB_ENV;
		3553
2040	# if anything goes wrong in here, we should simply crash as we already saved	3554	# if anything goes wrong in here, we should simply crash as we already saved
2041		3555
2042	# cancel all watchers	3556	warn "flushing outstanding aio requests";
2043	for (Event::all_watchers) {	3557	for (;;) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;	3558	BDB::flush;
		3559	IO::AIO::flush;
		3560	Coro::cede_notself;
		3561	last unless IO::AIO::nreqs || BDB::nreqs;
		3562	warn "iterate...";
2045	}	3563	}
2046		3564
		3565	++$RELOAD;
		3566
2047	# cancel all extension coros	3567	warn "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	3568	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	3569	%EXT_CORO = ();
2050		3570
2051	# unload all extensions	3571	warn "removing commands";
2052	for (@exts) {	3572	%COMMAND = ();
		3573
		3574	warn "removing ext/exti commands";
		3575	%EXTCMD = ();
		3576	%EXTICMD = ();
		3577
		3578	warn "unloading/nuking all extensions";
		3579	for my $pkg (@EXTS) {
2053	warn "unloading <$_>";	3580	warn "... unloading $pkg";
2054	unload_extension $_;	3581
		3582	if (my $cb = $pkg->can ("unload")) {
		3583	eval {
		3584	$cb->($pkg);
		3585	1
		3586	} or warn "$pkg unloaded, but with errors: $@";
2055	}	3587	}
2056		3588
		3589	warn "... nuking $pkg";
		3590	Symbol::delete_package $pkg;
		3591	}
		3592
2057	# unload all modules loaded from $LIBDIR	3593	warn "unloading all perl modules loaded from $LIBDIR";
2058	while (my ($k, $v) = each %INC) {	3594	while (my ($k, $v) = each %INC) {
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3595	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2060		3596
2061	warn "removing <$k>";	3597	warn "... unloading $k";
2062	delete $INC{$k};	3598	delete $INC{$k};
2063		3599
2064	$k =~ s/\.pm$//;	3600	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;	3601	$k =~ s/\//::/g;
2066		3602
…		…
2069	}	3605	}
2070		3606
2071	Symbol::delete_package $k;	3607	Symbol::delete_package $k;
2072	}	3608	}
2073		3609
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	3610	warn "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	3611	Symbol::delete_package "safe::$_"
2080	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3612	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2081		3613
2082	# remove register_script_function callbacks
2083	# TODO
2084
2085	# unload cf.pm "a bit"	3614	warn "unloading cf.pm \"a bit\"";
2086	delete $INC{"cf.pm"};	3615	delete $INC{"cf.pm"};
		3616	delete $INC{"cf/pod.pm"};
2087		3617
2088	# don't, removes xs symbols, too,	3618	# don't, removes xs symbols, too,
2089	# and global variables created in xs	3619	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	3620	#Symbol::delete_package __PACKAGE__;
2091		3621
2092	# reload cf.pm	3622	warn "unload completed, starting to reload now";
		3623
2093	warn "reloading cf.pm";	3624	warn "reloading cf.pm";
2094	require cf;	3625	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3626	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2096		3627
2097	# load config and database again	3628	warn "loading config and database again";
2098	cf::cfg_load;	3629	cf::reload_config;
2099	cf::db_load;
2100		3630
2101	# load extensions
2102	warn "load extensions";	3631	warn "loading extensions";
2103	cf::load_extensions;	3632	cf::load_extensions;
2104		3633
2105	# reattach attachments to objects	3634	warn "reattaching attachments to objects/players";
2106	warn "reattach";	3635	_global_reattach; # objects, sockets
2107	_global_reattach;	3636	warn "reattaching attachments to maps";
		3637	reattach $_ for values %MAP;
		3638	warn "reattaching attachments to players";
		3639	reattach $_ for values %PLAYER;
		3640
		3641	warn "leaving sync_job";
		3642
		3643	1
		3644	} or do {
		3645	warn $@;
		3646	cf::cleanup "error while reloading, exiting.";
2108	};	3647	};
2109		3648
2110	if ($@) {	3649	warn "reloaded";
2111	warn $@;
2112	warn "error while reloading, exiting.";
2113	exit 1;
2114	}
2115
2116	warn "reloaded successfully";
2117	};	3650	};
2118		3651
2119	#############################################################################	3652	our $RELOAD_WATCHER; # used only during reload
2120		3653
2121	unless ($LINK_MAP) {	3654	sub reload_perl() {
2122	$LINK_MAP = cf::map::new;	3655	# doing reload synchronously and two reloads happen back-to-back,
		3656	# coro crashes during coro_state_free->destroy here.
2123		3657
2124	$LINK_MAP->width (41);	3658	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2125	$LINK_MAP->height (41);	3659	do_reload_perl;
2126	$LINK_MAP->alloc;	3660	undef $RELOAD_WATCHER;
2127	$LINK_MAP->path ("{link}");	3661	};
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 => 10,
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} = $LINK_MAP;
2160	}	3662	}
2161
2162	register "<global>", __PACKAGE__;
2163		3663
2164	register_command "reload" => sub {	3664	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	3665	my ($who, $arg) = @_;
2166		3666
2167	if ($who->flag (FLAG_WIZ)) {	3667	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	3668	$who->message ("reloading server.");
		3669	async {
		3670	$Coro::current->{desc} = "perl_reload";
		3671	reload_perl;
		3672	};
2171	}	3673	}
2172	};	3674	};
2173		3675
2174	unshift @INC, $LIBDIR;	3676	unshift @INC, $LIBDIR;
2175		3677
2176	$TICK_WATCHER = Event->timer (	3678	my $bug_warning = 0;
2177	reentrant => 0,	3679
2178	prio => 0,	3680	our @WAIT_FOR_TICK;
2179	at => $NEXT_TICK || $TICK,	3681	our @WAIT_FOR_TICK_BEGIN;
2180	data => WF_AUTOCANCEL,	3682
2181	cb => sub {	3683	sub wait_for_tick {
		3684	return if tick_inhibit;
		3685	return if $Coro::current == $Coro::main;
		3686
		3687	my $signal = new Coro::Signal;
		3688	push @WAIT_FOR_TICK, $signal;
		3689	$signal->wait;
		3690	}
		3691
		3692	sub wait_for_tick_begin {
		3693	return if tick_inhibit;
		3694	return if $Coro::current == $Coro::main;
		3695
		3696	my $signal = new Coro::Signal;
		3697	push @WAIT_FOR_TICK_BEGIN, $signal;
		3698	$signal->wait;
		3699	}
		3700
		3701	sub tick {
		3702	if ($Coro::current != $Coro::main) {
		3703	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3704	unless ++$bug_warning > 10;
		3705	return;
		3706	}
		3707
2182	cf::server_tick; # one server iteration	3708	cf::server_tick; # one server iteration
2183	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;
2185		3709
2186	# if we are delayed by four ticks or more, skip them all	3710	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3711	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2188		3712	Coro::async_pool {
2189	$TICK_WATCHER->at ($NEXT_TICK);	3713	$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	3714	write_runtime
2211	or warn "ERROR: unable to write runtime file: $!";	3715	or warn "ERROR: unable to write runtime file: $!";
2212	})->();	3716	};
2213	},	3717	}
2214	);	3718
		3719	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3720	$sig->send;
		3721	}
		3722	while (my $sig = shift @WAIT_FOR_TICK) {
		3723	$sig->send;
		3724	}
		3725
		3726	$LOAD = ($NOW - $TICK_START) / $TICK;
		3727	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3728
		3729	if (0) {
		3730	if ($NEXT_TICK) {
		3731	my $jitter = $TICK_START - $NEXT_TICK;
		3732	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3733	warn "jitter $JITTER\n";#d#
		3734	}
		3735	}
		3736	}
		3737
		3738	{
		3739	# configure BDB
		3740
		3741	BDB::min_parallel 8;
		3742	BDB::max_poll_reqs $TICK * 0.1;
		3743	$Coro::BDB::WATCHER->priority (1);
		3744
		3745	unless ($DB_ENV) {
		3746	$DB_ENV = BDB::db_env_create;
		3747	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3748	| BDB::LOG_AUTOREMOVE, 1);
		3749	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3750	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3751
		3752	cf::sync_job {
		3753	eval {
		3754	BDB::db_env_open
		3755	$DB_ENV,
		3756	$BDBDIR,
		3757	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3758	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3759	0666;
		3760
		3761	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3762	};
		3763
		3764	cf::cleanup "db_env_open(db): $@" if $@;
		3765	};
		3766	}
		3767
		3768	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3769	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3770	};
		3771	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3772	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3773	};
		3774	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3775	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3776	};
		3777	}
		3778
		3779	{
		3780	# configure IO::AIO
		3781
		3782	IO::AIO::min_parallel 8;
		3783	IO::AIO::max_poll_time $TICK * 0.1;
		3784	$Coro::AIO::WATCHER->priority (1);
		3785	}
		3786
		3787	my $_log_backtrace;
		3788
		3789	sub _log_backtrace {
		3790	my ($msg, @addr) = @_;
		3791
		3792	$msg =~ s/\n//;
		3793
		3794	# limit the # of concurrent backtraces
		3795	if ($_log_backtrace < 2) {
		3796	++$_log_backtrace;
		3797	async {
		3798	$Coro::current->{desc} = "abt $msg";
		3799
		3800	my @bt = fork_call {
		3801	@addr = map { sprintf "%x", $_ } @addr;
		3802	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3803	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3804	or die "addr2line: $!";
		3805
		3806	my @funcs;
		3807	my @res = <$fh>;
		3808	chomp for @res;
		3809	while (@res) {
		3810	my ($func, $line) = splice @res, 0, 2, ();
		3811	push @funcs, "[$func] $line";
		3812	}
		3813
		3814	@funcs
		3815	};
		3816
		3817	LOG llevInfo, "[ABT] $msg\n";
		3818	LOG llevInfo, "[ABT] $_\n" for @bt;
		3819	--$_log_backtrace;
		3820	};
		3821	} else {
		3822	LOG llevInfo, "[ABT] $msg\n";
		3823	LOG llevInfo, "[ABT] [suppressed]\n";
		3824	}
		3825	}
		3826
		3827	# load additional modules
		3828	use cf::pod;
2215		3829
2216	END { cf::emergency_save }	3830	END { cf::emergency_save }
2217		3831
2218	1	3832	1
2219		3833

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