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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.147 by root, Mon Jan 8 12:23:33 2007 UTC vs.
Revision 1.412 by root, Wed Apr 2 11:13:55 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 1.86;
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 4.32 ();
		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 2.32 ();	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 %PLAYER; # all users	112	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	113	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	114	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	115
56	our %EXT_CORO; # coroutines bound to extensions	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 $TICK_START; # for load detecting purposes
57		123
58	binmode STDOUT;	124	binmode STDOUT;
59	binmode STDERR;	125	binmode STDERR;
60		126
61	# read virtual server time, if available	127	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
66	}	132	}
67		133
68	mkdir cf::localdir;	134	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		136
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
		138
		139	sub cf::map::normalise;
77		140
78	#############################################################################	141	#############################################################################
79		142
80	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
81		144
…		…
88	=item $cf::RUNTIME	151	=item $cf::RUNTIME
89		152
90	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
91	every server tick.	154	every server tick.
92		155
93	=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
94		159
95	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		164
98	=item $cf::NOW	165	=item $cf::NOW
99		166
100	The time of the last (current) server tick.	167	The time of the last (current) server tick.
101		168
102	=item $cf::TICK	169	=item $cf::TICK
103		170
104	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
105		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
106	=item %cf::CFG	183	=item %cf::CFG
107		184
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	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.
110		199
111	=back	200	=back
112		201
113	=cut	202	=cut
114		203
115	BEGIN {	204	BEGIN {
116	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	206	my $msg = join "", @_;
118	utf8::encode $msg;
119		207
120	$msg .= "\n"	208	$msg .= "\n"
121	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
122		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
123	LOG llevError, $msg;	213	LOG llevError, $msg;
124	};	214	};
125	}	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#?
126		231
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		239
134	# 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
135	# within the Safe compartment.	241	# within the Safe compartment.
136	for my $pkg (qw(	242	for my $pkg (qw(
137	cf::global cf::attachable	243	cf::global cf::attachable
…		…
142	)) {	248	)) {
143	no strict 'refs';	249	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	251	}
146		252
147	$Event::DIED = sub {	253	$EV::DIED = sub {
148	warn "error in event callback: @_";	254	warn "error in event callback: @_";
149	};	255	};
150		256
151	my %ext_pkg;	257	#############################################################################
152	my @exts;
153	my @hook;
154		258
155	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
156		260
157	=over 4	261	=over 4
158		262
159	=cut	263	=item dumpval $ref
160		264
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	265	=cut
162		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
163	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
164		287
165	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
166		289
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
175		291
176	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
177		293
178	=cut	294	=cut
179		295
180	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
182	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
183	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
184		300
185	=item cf::lock_wait $string	301	=item cf::lock_wait $string
186		302
187	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
188		304
…		…
191	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
192	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,
193	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
194	returned.	310	returned.
195		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
196	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
197	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
198		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
199	=cut	322	=cut
200		323
201	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
202		326
203	sub lock_wait($) {	327	sub lock_wait($) {
204	my ($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#
205		334
206	# wait for lock, if any	335	# wait for lock, if any
207	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;	338	Coro::schedule;
…		…
215		344
216	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
217	lock_wait $key;	346	lock_wait $key;
218		347
219	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
220		350
221	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
222	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
224	}	355	}
225	}	356	}
226		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
227	sub freeze_mainloop {	364	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
229		366
230	my $guard = Coro::guard { $TICK_WATCHER->start };	367	Coro::guard \&tick_inhibit_dec;
231	$TICK_WATCHER->stop;	368	}
232	$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	$sig->wait;
233	}	441	}
234		442
235	=item cf::async { BLOCK }	443	=item cf::async { BLOCK }
236		444
237	Currently the same as Coro::async_pool, meaning you cannot use	445	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		450
243	BEGIN { *async = \&Coro::async_pool }	451	BEGIN { *async = \&Coro::async_pool }
244		452
245	=item cf::sync_job { BLOCK }	453	=item cf::sync_job { BLOCK }
246		454
247	The design of crossfire+ requires that the main coro ($Coro::main) is	455	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	456	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
250		459
251	If it must be done, put the blocking parts into C<sync_job>. This will run	460	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	461	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	462	server will be frozen during this time, so the block should either finish
254	fast or be very important.	463	fast or be very important.
…		…
257		466
258	sub sync_job(&) {	467	sub sync_job(&) {
259	my ($job) = @_;	468	my ($job) = @_;
260		469
261	if ($Coro::current == $Coro::main) {	470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
262	# this is the main coro, too bad, we have to block	473	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	474	# till the operation succeeds, freezing the server :/
264		475
265	# TODO: use suspend/resume instead	476	LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	477
267	my $freeze_guard = freeze_mainloop;	478	my $freeze_guard = freeze_mainloop;
268		479
269	my $busy = 1;	480	my $busy = 1;
270	my @res;	481	my @res;
271		482
272	(async {	483	(async {
		484	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	485	@res = eval { $job->() };
274	warn $@ if $@;	486	warn $@ if $@;
275	undef $busy;	487	undef $busy;
276	})->prio (Coro::PRIO_MAX);	488	})->prio (Coro::PRIO_MAX);
277		489
278	while ($busy) {	490	while ($busy) {
279	Coro::cede or Event::one_event;	491	if (Coro::nready) {
		492	Coro::cede_notself;
		493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
280	}	495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
281		501
282	wantarray ? @res : $res[0]	502	wantarray ? @res : $res[0]
283	} else {	503	} else {
284	# we are in another coroutine, how wonderful, everything just works	504	# we are in another coroutine, how wonderful, everything just works
285		505
…		…
287	}	507	}
288	}	508	}
289		509
290	=item $coro = cf::async_ext { BLOCK }	510	=item $coro = cf::async_ext { BLOCK }
291		511
292	Like async, but this coro is automcatially being canceled when the	512	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	513	extension calling this is being unloaded.
294		514
295	=cut	515	=cut
296		516
297	sub async_ext(&) {	517	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	525	$EXT_CORO{$coro+0} = $coro;
306		526
307	$coro	527	$coro
308	}	528	}
309		529
310	sub write_runtime {	530	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		531
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	532	Executes the given code block with the given arguments in a seperate
314	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.
315		536
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	537	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		538
320	aio_fsync $fh	539	sub fork_call(&@) {
321	and return;	540	my ($cb, @args) = @_;
322		541
323	close $fh	542	# we seemingly have to make a local copy of the whole thing,
324	or return;	543	# otherwise perl prematurely frees the stuff :/
		544	# TODO: investigate and fix (likely this will be rather laborious)
325		545
326	aio_rename "$runtime~", $runtime	546	my @res = Coro::Util::fork_eval {
327	and return;	547	reset_signals;
		548	&$cb
		549	}, @args;
328		550
		551	wantarray ? @res : $res[-1]
		552	}
		553
		554	=item $value = cf::db_get $family => $key
		555
		556	Returns a single value from the environment database.
		557
		558	=item cf::db_put $family => $key => $value
		559
		560	Stores the given C<$value> in the family. It can currently store binary
		561	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		562
		563	=item $db = cf::db_table "name"
		564
		565	Create and/or open a new database table. The string must not be "db" and must be unique
		566	within each server.
		567
		568	=cut
		569
		570	sub db_table($) {
		571	my ($name) = @_;
		572	my $db = BDB::db_create $DB_ENV;
		573
		574	eval {
		575	$db->set_flags (BDB::CHKSUM);
		576
		577	utf8::encode $name;
		578	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		579	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		580	cf::cleanup "db_open(db): $!" if $!;
		581	};
		582	cf::cleanup "db_open(db): $@" if $@;
		583
		584	$db
		585	}
		586
		587	our $DB;
		588
		589	sub db_init {
		590	cf::sync_job {
		591	$DB ||= db_table "db";
		592	};
		593	}
		594
		595	sub db_get($$) {
		596	my $key = "$_[0]/$_[1]";
		597
		598	cf::sync_job {
		599	BDB::db_get $DB, undef, $key, my $data;
		600
		601	$! ? ()
		602	: $data
329	1	603	}
		604	}
		605
		606	sub db_put($$$) {
		607	BDB::dbreq_pri 4;
		608	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		609	}
		610
		611	=item cf::cache $id => [$paths...], $processversion => $process
		612
		613	Generic caching function that returns the value of the resource $id,
		614	caching and regenerating as required.
		615
		616	This function can block.
		617
		618	=cut
		619
		620	sub cache {
		621	my ($id, $src, $processversion, $process) = @_;
		622
		623	my $meta =
		624	join "\x00",
		625	$processversion,
		626	map {
		627	aio_stat $_
		628	and Carp::croak "$_: $!";
		629
		630	($_, (stat _)[7,9])
		631	} @$src;
		632
		633	my $dbmeta = db_get cache => "$id/meta";
		634	if ($dbmeta ne $meta) {
		635	# changed, we may need to process
		636
		637	my @data;
		638	my $md5;
		639
		640	for (0 .. $#$src) {
		641	0 <= aio_load $src->[$_], $data[$_]
		642	or Carp::croak "$src->[$_]: $!";
		643	}
		644
		645	# if processing is expensive, check
		646	# checksum first
		647	if (1) {
		648	$md5 =
		649	join "\x00",
		650	$processversion,
		651	map {
		652	cf::cede_to_tick;
		653	($src->[$_], Digest::MD5::md5_hex $data[$_])
		654	} 0.. $#$src;
		655
		656
		657	my $dbmd5 = db_get cache => "$id/md5";
		658	if ($dbmd5 eq $md5) {
		659	db_put cache => "$id/meta", $meta;
		660
		661	return db_get cache => "$id/data";
		662	}
		663	}
		664
		665	my $t1 = Time::HiRes::time;
		666	my $data = $process->(\@data);
		667	my $t2 = Time::HiRes::time;
		668
		669	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		670
		671	db_put cache => "$id/data", $data;
		672	db_put cache => "$id/md5" , $md5;
		673	db_put cache => "$id/meta", $meta;
		674
		675	return $data;
		676	}
		677
		678	db_get cache => "$id/data"
		679	}
		680
		681	=item cf::datalog type => key => value, ...
		682
		683	Log a datalog packet of the given type with the given key-value pairs.
		684
		685	=cut
		686
		687	sub datalog($@) {
		688	my ($type, %kv) = @_;
		689	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	690	}
331		691
332	=back	692	=back
333		693
334	=cut	694	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		695
456	#############################################################################	696	#############################################################################
457		697
458	=head2 ATTACHABLE OBJECTS	698	=head2 ATTACHABLE OBJECTS
459		699
…		…
461	attach callbacks/event handlers (a collection of which is called an "attachment")	701	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	702	to it. All such attachable objects support the following methods.
463		703
464	In the following description, CLASS can be any of C<global>, C<object>	704	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	705	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	706	Deliantra).
467		707
468	=over 4	708	=over 4
469		709
470	=item $attachable->attach ($attachment, key => $value...)	710	=item $attachable->attach ($attachment, key => $value...)
471		711
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	825	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	826	our @CB_MAP = ();
587		827
588	my %attachment;	828	my %attachment;
589		829
		830	sub cf::attachable::thawer_merge {
		831	# simply override everything except _meta
		832	local $_[0]{_meta};
		833	%{$_[0]} = %{$_[1]};
		834	}
		835
590	sub _attach_cb($$$$) {	836	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	837	my ($registry, $event, $prio, $cb) = @_;
592		838
593	use sort 'stable';	839	use sort 'stable';
594		840
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	874	$registry = $CB_TYPE[$object_type] ||= [];
629		875
630	} elsif ($type eq "subtype") {	876	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	877	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	878	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	879	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		880
635	} elsif ($type eq "package") {	881	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	882	my $pkg = shift @arg;
637		883
638	while (my ($name, $id) = each %cb_id) {	884	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	913	_attach $registry, $klass, @attach;
668	}	914	}
669		915
670	$obj->{$name} = \%arg;	916	$obj->{$name} = \%arg;
671	} else {	917	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	918	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	919	}
674		920
675	$obj->{_attachment}{$name} = undef;	921	$obj->{_attachment}{$name} = undef;
676	}	922	}
677		923
…		…
679	if (ref $_[0]) {	925	if (ref $_[0]) {
680	_object_attach @_;	926	_object_attach @_;
681	} else {	927	} else {
682	_attach shift->_attach_registry, @_;	928	_attach shift->_attach_registry, @_;
683	}	929	}
		930	_recalc_want;
684	};	931	};
685		932
686	# all those should be optimised	933	# all those should be optimised
687	sub cf::attachable::detach {	934	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	935	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	938	delete $obj->{_attachment}{$name};
692	reattach ($obj);	939	reattach ($obj);
693	} else {	940	} else {
694	Carp::croak "cannot, currently, detach class attachments";	941	Carp::croak "cannot, currently, detach class attachments";
695	}	942	}
		943	_recalc_want;
696	};	944	};
697		945
698	sub cf::attachable::attached {	946	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	947	my ($obj, $name) = @_;
700		948
…		…
715	";	963	";
716	die if $@;	964	die if $@;
717	}	965	}
718		966
719	our $override;	967	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	968	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		969
722	sub override {	970	sub override {
723	$override = 1;	971	$override = 1;
724	@invoke_results = ();	972	@INVOKE_RESULTS = (@_);
725	}	973	}
726		974
727	sub do_invoke {	975	sub do_invoke {
728	my $event = shift;	976	my $event = shift;
729	my $callbacks = shift;	977	my $callbacks = shift;
730		978
731	@invoke_results = ();	979	@INVOKE_RESULTS = ();
732		980
733	local $override;	981	local $override;
734		982
735	for (@$callbacks) {	983	for (@$callbacks) {
736	eval { &{$_->[1]} };	984	eval { &{$_->[1]} };
…		…
745	}	993	}
746		994
747	0	995	0
748	}	996	}
749		997
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	998	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		999
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1000	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1001
754	Generate an object-specific event with the given arguments.	1002	Generate an object-specific event with the given arguments.
755		1003
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1004	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1005	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1006	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1007
760	=back	1008	=back
761		1009
762	=cut	1010	=cut
763		1011
764	#############################################################################	1012	#############################################################################
765	# object support	1013	# object support
		1014
		1015	sub _object_equal($$);
		1016	sub _object_equal($$) {
		1017	my ($a, $b) = @_;
		1018
		1019	return 0 unless (ref $a) eq (ref $b);
		1020
		1021	if ("HASH" eq ref $a) {
		1022	my @ka = keys %$a;
		1023	my @kb = keys %$b;
		1024
		1025	return 0 if @ka != @kb;
		1026
		1027	for (0 .. $#ka) {
		1028	return 0 unless $ka[$_] eq $kb[$_];
		1029	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1030	}
		1031
		1032	} elsif ("ARRAY" eq ref $a) {
		1033
		1034	return 0 if @$a != @$b;
		1035
		1036	for (0 .. $#$a) {
		1037	return 0 unless _object_equal $a->[$_], $b->[$_];
		1038	}
		1039
		1040	} elsif ($a ne $b) {
		1041	return 0;
		1042	}
		1043
		1044	1
		1045	}
		1046
		1047	our $SLOW_MERGES;#d#
		1048	sub _can_merge {
		1049	my ($ob1, $ob2) = @_;
		1050
		1051	++$SLOW_MERGES;#d#
		1052
		1053	# we do the slow way here
		1054	return _object_equal $ob1, $ob2
		1055	}
766		1056
767	sub reattach {	1057	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1058	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1059	my ($obj) = @_;
		1060
		1061	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1062
771	my $registry = $obj->registry;	1063	my $registry = $obj->registry;
772		1064
773	@$registry = ();	1065	@$registry = ();
774		1066
…		…
789	cf::attachable->attach (	1081	cf::attachable->attach (
790	prio => -1000000,	1082	prio => -1000000,
791	on_instantiate => sub {	1083	on_instantiate => sub {
792	my ($obj, $data) = @_;	1084	my ($obj, $data) = @_;
793		1085
794	$data = from_json $data;	1086	$data = decode_json $data;
795		1087
796	for (@$data) {	1088	for (@$data) {
797	my ($name, $args) = @$_;	1089	my ($name, $args) = @$_;
798		1090
799	$obj->attach ($name, %{$args || {} });	1091	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1107	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1108	my ($filename, $rdata, $objs) = @_;
817		1109
818	sync_job {	1110	sync_job {
819	if (length $$rdata) {	1111	if (length $$rdata) {
		1112	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1113	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1114	$decname, length $$rdata, scalar @$objs;
822		1115
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1116	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1117	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1118	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	1119	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1120	close $fh;
828		1121
829	if (@$objs) {	1122	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1123	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1124	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1125	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1126	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	1127	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	1128	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1129	aio_rename "$filename.pst~", "$filename.pst";
837	}	1130	}
838	} else {	1131	} else {
839	aio_unlink "$filename.pst";	1132	aio_unlink "$filename.pst";
…		…
845	}	1138	}
846	} else {	1139	} else {
847	aio_unlink $filename;	1140	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1141	aio_unlink "$filename.pst";
849	}	1142	}
850	}	1143	};
851	}	1144	}
852		1145
853	sub object_freezer_as_string {	1146	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1147	my ($rdata, $objs) = @_;
855		1148
…		…
867	or return;	1160	or return;
868		1161
869	unless (aio_stat "$filename.pst") {	1162	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1163	(aio_load "$filename.pst", $av) >= 0
871	or return;	1164	or return;
		1165
872	$av = eval { (Storable::thaw $av)->{objs} };	1166	my $st = eval { Coro::Storable::thaw $av };
		1167	$av = $st->{objs};
873	}	1168	}
874		1169
		1170	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1171	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1172	$decname, length $data, scalar @{$av || []};
		1173
877	return ($data, $av);	1174	($data, $av)
878	}	1175	}
		1176
		1177	=head2 COMMAND CALLBACKS
		1178
		1179	=over 4
		1180
		1181	=cut
879		1182
880	#############################################################################	1183	#############################################################################
881	# command handling &c	1184	# command handling &c
882		1185
883	=item cf::register_command $name => \&callback($ob,$args);	1186	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1199	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1200	}
898		1201
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1202	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1203
901	Register a callbackf ro execution when the client sends an extcmd packet.	1204	Register a callback for execution when the client sends an (synchronous)
		1205	extcmd packet. Ext commands will be processed in the order they are
		1206	received by the server, like other user commands. The first argument is
		1207	the logged-in player. Ext commands can only be processed after a player
		1208	has logged in successfully.
902		1209
903	If the callback returns something, it is sent back as if reply was being	1210	If the callback returns something, it is sent back as if reply was being
904	called.	1211	called.
905		1212
		1213	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1214
		1215	Register a callback for execution when the client sends an (asynchronous)
		1216	exticmd packet. Exti commands are processed by the server as soon as they
		1217	are received, i.e. out of order w.r.t. other commands. The first argument
		1218	is a client socket. Exti commands can be received anytime, even before
		1219	log-in.
		1220
		1221	If the callback returns something, it is sent back as if reply was being
		1222	called.
		1223
906	=cut	1224	=cut
907		1225
908	sub register_extcmd {	1226	sub register_extcmd {
909	my ($name, $cb) = @_;	1227	my ($name, $cb) = @_;
910		1228
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1229	$EXTCMD{$name} = $cb;
		1230	}
		1231
		1232	sub register_exticmd {
		1233	my ($name, $cb) = @_;
		1234
		1235	$EXTICMD{$name} = $cb;
915	}	1236	}
916		1237
917	cf::player->attach (	1238	cf::player->attach (
918	on_command => sub {	1239	on_command => sub {
919	my ($pl, $name, $params) = @_;	1240	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1249	cf::override;
929	},	1250	},
930	on_extcmd => sub {	1251	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1252	my ($pl, $buf) = @_;
932		1253
933	my $msg = eval { from_json $buf };	1254	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1255
935	if (ref $msg) {	1256	if (ref $msg) {
		1257	my ($type, $reply, @payload) =
		1258	"ARRAY" eq ref $msg
		1259	? @$msg
		1260	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1261
		1262	my @reply;
		1263
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1264	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1265	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1266	}
		1267
		1268	$pl->ext_reply ($reply, @reply)
		1269	if $reply;
		1270
941	} else {	1271	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1272	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1273	}
944		1274
945	cf::override;	1275	cf::override;
946	},	1276	},
947	);	1277	);
948		1278
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {
956	my ($path) = @_;
957
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;
960	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}
1024
1025	sub load_extensions {	1279	sub load_extensions {
		1280	cf::sync_job {
		1281	my %todo;
		1282
1026	for my $ext (<$LIBDIR/*.ext>) {	1283	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1284	next unless -r $path;
1028	eval {	1285
1029	load_extension $ext;	1286	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1287	my $base = $1;
		1288	my $pkg = $1;
		1289	$pkg =~ s/[^[:word:]]/_/g;
		1290	$pkg = "ext::$pkg";
		1291
		1292	open my $fh, "<:utf8", $path
		1293	or die "$path: $!";
		1294
		1295	my $source = do { local $/; <$fh> };
		1296
		1297	my %ext = (
		1298	path => $path,
		1299	base => $base,
		1300	pkg => $pkg,
		1301	);
		1302
		1303	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1304	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1305
		1306	$ext{source} =
		1307	"package $pkg; use strict; use utf8;\n"
		1308	. "#line 1 \"$path\"\n{\n"
		1309	. $source
		1310	. "\n};\n1";
		1311
		1312	$todo{$base} = \%ext;
		1313	}
		1314
		1315	my %done;
		1316	while (%todo) {
		1317	my $progress;
		1318
		1319	while (my ($k, $v) = each %todo) {
		1320	for (split /,\s*/, $v->{meta}{depends}) {
		1321	goto skip
		1322	unless exists $done{$_};
		1323	}
		1324
		1325	warn "... loading '$k' into '$v->{pkg}'\n";
		1326
		1327	unless (eval $v->{source}) {
		1328	my $msg = $@ ? "$v->{path}: $@\n"
		1329	: "$v->{base}: extension inactive.\n";
		1330
		1331	if (exists $v->{meta}{mandatory}) {
		1332	warn $msg;
		1333	cf::cleanup "mandatory extension failed to load, exiting.";
		1334	}
		1335
		1336	warn $msg;
		1337	}
		1338
		1339	$done{$k} = delete $todo{$k};
		1340	push @EXTS, $v->{pkg};
		1341	$progress = 1;
1030	1	1342	}
1031	} or warn "$ext not loaded: $@";	1343
		1344	skip:
		1345	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1346	unless $progress;
		1347	}
1032	}	1348	};
1033	}	1349	}
1034		1350
1035	#############################################################################	1351	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1352
1038	*cf::mapsupport::on_clean = sub {	1353	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1354
1073	=head2 CORE EXTENSIONS	1355	=head2 CORE EXTENSIONS
1074		1356
1075	Functions and methods that extend core crossfire objects.	1357	Functions and methods that extend core crossfire objects.
1076		1358
1077	=cut	1359	=cut
1078		1360
1079	package cf::player;	1361	package cf::player;
1080		1362
		1363	use Coro::AIO;
		1364
1081	=head3 cf::player	1365	=head3 cf::player
1082		1366
1083	=over 4	1367	=over 4
1084		1368
		1369	=item cf::player::num_playing
		1370
		1371	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1372
		1373	=cut
		1374
		1375	sub num_playing {
		1376	scalar grep
		1377	$_->ob->map
		1378	&& !$_->hidden
		1379	&& !$_->ob->flag (cf::FLAG_WIZ),
		1380	cf::player::list
		1381	}
		1382
1085	=item cf::player::find $login	1383	=item cf::player::find $login
1086		1384
1087	Returns the given player object, loading it if necessary (might block).	1385	Returns the given player object, loading it if necessary (might block).
1088		1386
1089	=cut	1387	=cut
1090		1388
1091	sub playerdir($) {	1389	sub playerdir($) {
1092	cf::localdir	1390	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1391	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1392	}
1098		1393
1099	sub path($) {	1394	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1395	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1396
1102	(playerdir $login) . "/$login.pl"	1397	(playerdir $login) . "/playerdata"
1103	}	1398	}
1104		1399
1105	sub find_active($) {	1400	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1401	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1402	and $cf::PLAYER{$_[0]}->active
…		…
1110		1405
1111	sub exists($) {	1406	sub exists($) {
1112	my ($login) = @_;	1407	my ($login) = @_;
1113		1408
1114	$cf::PLAYER{$login}	1409	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1410	or cf::sync_job { !aio_stat path $login }
1116	}	1411	}
1117		1412
1118	sub find($) {	1413	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1414	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1415	my $login = $_[0];
1121		1416
1122	my $guard = cf::lock_acquire "user_find:$login";	1417	my $guard = cf::lock_acquire "user_find:$login";
1123		1418
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1419	$cf::PLAYER{$_[0]} || do {
		1420	# rename old playerfiles to new ones
		1421	#TODO: remove when no longer required
		1422	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1423	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1424	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1425	aio_unlink +(playerdir $login) . "/$login.pl";
		1426
		1427	my $f = new_from_file cf::object::thawer path $login
		1428	or return;
		1429
		1430	my $pl = cf::player::load_pl $f
		1431	or return;
		1432	local $cf::PLAYER_LOADING{$login} = $pl;
		1433	$f->resolve_delayed_derefs;
		1434	$cf::PLAYER{$login} = $pl
		1435	}
1125	};	1436	}
1126	}	1437	}
1127		1438
1128	sub save($) {	1439	sub save($) {
1129	my ($pl) = @_;	1440	my ($pl) = @_;
1130		1441
…		…
1133	my $path = path $pl;	1444	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1445	my $guard = cf::lock_acquire "user_save:$path";
1135		1446
1136	return if $pl->{deny_save};	1447	return if $pl->{deny_save};
1137		1448
1138	IO::AIO::aio_mkdir playerdir $pl, 0770;	1449	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1450	$pl->{last_save} = $cf::RUNTIME;
1140		1451
1141	Coro::cede;
1142	$pl->save_pl ($path);	1452	$pl->save_pl ($path);
1143	Coro::cede;	1453	cf::cede_to_tick;
1144	}	1454	}
1145		1455
1146	sub new($) {	1456	sub new($) {
1147	my ($login) = @_;	1457	my ($login) = @_;
1148		1458
…		…
1154	$cf::PLAYER{$login} = $self;	1464	$cf::PLAYER{$login} = $self;
1155		1465
1156	$self	1466	$self
1157	}	1467	}
1158		1468
		1469	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1470
		1471	=cut
		1472
		1473	sub send_msg {
		1474	my $ns = shift->ns
		1475	or return;
		1476	$ns->send_msg (@_);
		1477	}
		1478
		1479	=item $pl->quit_character
		1480
		1481	Nukes the player without looking back. If logged in, the connection will
		1482	be destroyed. May block for a long time.
		1483
		1484	=cut
		1485
1159	sub quit_character {	1486	sub quit_character {
1160	my ($pl) = @_;	1487	my ($pl) = @_;
		1488
		1489	my $name = $pl->ob->name;
1161		1490
1162	$pl->{deny_save} = 1;	1491	$pl->{deny_save} = 1;
1163	$pl->password ("*"); # this should lock out the player until we nuked the dir	1492	$pl->password ("*"); # this should lock out the player until we nuked the dir
1164		1493
1165	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1494	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1167	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1496	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1168	$pl->ns->destroy if $pl->ns;	1497	$pl->ns->destroy if $pl->ns;
1169		1498
1170	my $path = playerdir $pl;	1499	my $path = playerdir $pl;
1171	my $temp = "$path~$cf::RUNTIME~deleting~";	1500	my $temp = "$path~$cf::RUNTIME~deleting~";
1172	IO::AIO::aio_rename $path, $temp, sub {	1501	aio_rename $path, $temp;
1173	delete $cf::PLAYER{$pl->ob->name};	1502	delete $cf::PLAYER{$pl->ob->name};
1174	$pl->destroy;	1503	$pl->destroy;
1175		1504
		1505	my $prefix = qr<^~\Q$name\E/>;
		1506
		1507	# nuke player maps
		1508	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1509
1176	IO::AIO::aio_rmtree $temp;	1510	IO::AIO::aio_rmtree $temp;
		1511	}
		1512
		1513	=item $pl->kick
		1514
		1515	Kicks a player out of the game. This destroys the connection.
		1516
		1517	=cut
		1518
		1519	sub kick {
		1520	my ($pl, $kicker) = @_;
		1521
		1522	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1523	$pl->killer ("kicked");
		1524	$pl->ns->destroy;
		1525	}
		1526
		1527	=item cf::player::list_logins
		1528
		1529	Returns am arrayref of all valid playernames in the system, can take a
		1530	while and may block, so not sync_job-capable, ever.
		1531
		1532	=cut
		1533
		1534	sub list_logins {
		1535	my $dirs = aio_readdir $PLAYERDIR
		1536	or return [];
		1537
		1538	my @logins;
		1539
		1540	for my $login (@$dirs) {
		1541	my $path = path $login;
		1542
		1543	# a .pst is a dead give-away for a valid player
		1544	unless (-e "$path.pst") {
		1545	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1546	aio_read $fh, 0, 512, my $buf, 0 or next;
		1547	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1548	}
		1549
		1550	utf8::decode $login;
		1551	push @logins, $login;
1177	};	1552	}
1178	}
1179		1553
		1554	\@logins
		1555	}
		1556
		1557	=item $player->maps
		1558
		1559	Returns an arrayref of map paths that are private for this
		1560	player. May block.
		1561
		1562	=cut
		1563
		1564	sub maps($) {
		1565	my ($pl) = @_;
		1566
		1567	$pl = ref $pl ? $pl->ob->name : $pl;
		1568
		1569	my $files = aio_readdir playerdir $pl
		1570	or return;
		1571
		1572	my @paths;
		1573
		1574	for (@$files) {
		1575	utf8::decode $_;
		1576	next if /\.(?:pl|pst)$/;
		1577	next unless /^$PATH_SEP/o;
		1578
		1579	push @paths, cf::map::normalise "~$pl/$_";
		1580	}
		1581
		1582	\@paths
		1583	}
		1584
		1585	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1586
		1587	Expand crossfire pod fragments into protocol xml.
		1588
		1589	=cut
		1590
		1591	use re 'eval';
		1592
		1593	my $group;
		1594	my $interior; $interior = qr{
		1595	# match a pod interior sequence sans C<< >>
		1596	(?:
		1597	\ (.*?)\ (?{ $group = $^N })
		1598	| < (??{$interior}) >
		1599	)
		1600	}x;
		1601
		1602	sub expand_cfpod {
		1603	my ($self, $pod) = @_;
		1604
		1605	my $xml;
		1606
		1607	while () {
		1608	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1609	$group = $1;
		1610
		1611	$group =~ s/&/&amp;/g;
		1612	$group =~ s/</&lt;/g;
		1613
		1614	$xml .= $group;
		1615	} elsif ($pod =~ m%\G
		1616	([BCGHITU])
		1617	<
		1618	(?:
		1619	([^<>]*) (?{ $group = $^N })
		1620	| < $interior >
		1621	)
		1622	>
		1623	%gcsx
		1624	) {
		1625	my ($code, $data) = ($1, $group);
		1626
		1627	if ($code eq "B") {
		1628	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1629	} elsif ($code eq "I") {
		1630	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1631	} elsif ($code eq "U") {
		1632	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1633	} elsif ($code eq "C") {
		1634	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1635	} elsif ($code eq "T") {
		1636	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1637	} elsif ($code eq "G") {
		1638	my ($male, $female) = split /\|/, $data;
		1639	$data = $self->gender ? $female : $male;
		1640	$xml .= expand_cfpod ($self, $data);
		1641	} elsif ($code eq "H") {
		1642	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1643	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1644	"")
		1645	[$self->{hintmode}];
		1646	} else {
		1647	$xml .= "error processing '$code($data)' directive";
		1648	}
		1649	} else {
		1650	if ($pod =~ /\G(.+)/) {
		1651	warn "parse error while expanding $pod (at $1)";
		1652	}
		1653	last;
		1654	}
		1655	}
		1656
		1657	for ($xml) {
		1658	# create single paragraphs (very hackish)
		1659	s/(?<=\S)\n(?=\w)/ /g;
		1660
		1661	# compress some whitespace
		1662	s/\s+\n/\n/g; # ws line-ends
		1663	s/\n\n+/\n/g; # double lines
		1664	s/^\n+//; # beginning lines
		1665	s/\n+$//; # ending lines
		1666	}
		1667
		1668	$xml
		1669	}
		1670
		1671	no re 'eval';
		1672
		1673	sub hintmode {
		1674	$_[0]{hintmode} = $_[1] if @_ > 1;
		1675	$_[0]{hintmode}
		1676	}
		1677
1180	=item $player->ext_reply ($msgid, $msgtype, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1181		1679
1182	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1183		1681
1184	=cut	1682	=cut
1185		1683
1186	sub ext_reply($$$%) {	1684	sub ext_reply($$@) {
1187	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1188		1686
1189	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1190
1191	$self->send ("ext " . cf::to_json \%msg);
1192	}	1688	}
1193		1689
1194	package cf;	1690	=item $player->ext_msg ($type, @msg)
		1691
		1692	Sends an ext event to the client.
		1693
		1694	=cut
		1695
		1696	sub ext_msg($$@) {
		1697	my ($self, $type, @msg) = @_;
		1698
		1699	$self->ns->ext_msg ($type, @msg);
		1700	}
		1701
		1702	=head3 cf::region
		1703
		1704	=over 4
		1705
		1706	=cut
		1707
		1708	package cf::region;
		1709
		1710	=item cf::region::find_by_path $path
		1711
		1712	Tries to decuce the likely region for a map knowing only its path.
		1713
		1714	=cut
		1715
		1716	sub find_by_path($) {
		1717	my ($path) = @_;
		1718
		1719	my ($match, $specificity);
		1720
		1721	for my $region (list) {
		1722	if ($region->{match} && $path =~ $region->{match}) {
		1723	($match, $specificity) = ($region, $region->specificity)
		1724	if $region->specificity > $specificity;
		1725	}
		1726	}
		1727
		1728	$match
		1729	}
1195		1730
1196	=back	1731	=back
1197
1198		1732
1199	=head3 cf::map	1733	=head3 cf::map
1200		1734
1201	=over 4	1735	=over 4
1202		1736
…		…
1205	package cf::map;	1739	package cf::map;
1206		1740
1207	use Fcntl;	1741	use Fcntl;
1208	use Coro::AIO;	1742	use Coro::AIO;
1209		1743
		1744	use overload
		1745	'""' => \&as_string,
		1746	fallback => 1;
		1747
1210	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1212		1750
1213	sub generate_random_map {	1751	sub generate_random_map {
1214	my ($path, $rmp) = @_;	1752	my ($self, $rmp) = @_;
1215
1216	# mit "rum" bekleckern, nicht	1753	# mit "rum" bekleckern, nicht
1217	cf::map::_create_random_map	1754	$self->_create_random_map (
1218	$path,
1219	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1755	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1220	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1756	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1221	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1757	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1222	$rmp->{exit_on_final_map},	1758	$rmp->{exit_on_final_map},
1223	$rmp->{xsize}, $rmp->{ysize},	1759	$rmp->{xsize}, $rmp->{ysize},
1224	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1760	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1225	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1761	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1226	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1762	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1227	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1763	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1228	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1764	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1229	(cf::region::find $rmp->{region})	1765	(cf::region::find $rmp->{region}), $rmp->{custom}
		1766	)
		1767	}
		1768
		1769	=item cf::map->register ($regex, $prio)
		1770
		1771	Register a handler for the map path matching the given regex at the
		1772	givne priority (higher is better, built-in handlers have priority 0, the
		1773	default).
		1774
		1775	=cut
		1776
		1777	sub register {
		1778	my (undef, $regex, $prio) = @_;
		1779	my $pkg = caller;
		1780
		1781	no strict;
		1782	push @{"$pkg\::ISA"}, __PACKAGE__;
		1783
		1784	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1785	}
		1786
		1787	# also paths starting with '/'
		1788	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1789
		1790	sub thawer_merge {
		1791	my ($self, $merge) = @_;
		1792
		1793	# we have to keep some variables in memory intact
		1794	local $self->{path};
		1795	local $self->{load_path};
		1796
		1797	$self->SUPER::thawer_merge ($merge);
		1798	}
		1799
		1800	sub normalise {
		1801	my ($path, $base) = @_;
		1802
		1803	$path = "$path"; # make sure its a string
		1804
		1805	$path =~ s/\.map$//;
		1806
		1807	# map plan:
		1808	#
		1809	# /! non-realised random map exit (special hack!)
		1810	# {... are special paths that are not being touched
		1811	# ?xxx/... are special absolute paths
		1812	# ?random/... random maps
		1813	# /... normal maps
		1814	# ~user/... per-player map of a specific user
		1815
		1816	$path =~ s/$PATH_SEP/\//go;
		1817
		1818	# treat it as relative path if it starts with
		1819	# something that looks reasonable
		1820	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1821	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1822
		1823	$base =~ s{[^/]+/?$}{};
		1824	$path = "$base/$path";
		1825	}
		1826
		1827	for ($path) {
		1828	redo if s{//}{/};
		1829	redo if s{/\.?/}{/};
		1830	redo if s{/[^/]+/\.\./}{/};
		1831	}
		1832
		1833	$path
		1834	}
		1835
		1836	sub new_from_path {
		1837	my (undef, $path, $base) = @_;
		1838
		1839	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1840
		1841	$path = normalise $path, $base;
		1842
		1843	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1844	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1845	my $self = bless cf::map::new, $pkg;
		1846	$self->{path} = $path; $self->path ($path);
		1847	$self->init; # pass $1 etc.
		1848	return $self;
		1849	}
		1850	}
		1851
		1852	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1853	()
		1854	}
		1855
		1856	sub init {
		1857	my ($self) = @_;
		1858
		1859	$self
		1860	}
		1861
		1862	sub as_string {
		1863	my ($self) = @_;
		1864
		1865	"$self->{path}"
		1866	}
		1867
		1868	# the displayed name, this is a one way mapping
		1869	sub visible_name {
		1870	&as_string
		1871	}
		1872
		1873	# the original (read-only) location
		1874	sub load_path {
		1875	my ($self) = @_;
		1876
		1877	"$MAPDIR/$self->{path}.map"
		1878	}
		1879
		1880	# the temporary/swap location
		1881	sub save_path {
		1882	my ($self) = @_;
		1883
		1884	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1885	"$TMPDIR/$path.map"
		1886	}
		1887
		1888	# the unique path, undef == no special unique path
		1889	sub uniq_path {
		1890	my ($self) = @_;
		1891
		1892	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1893	"$UNIQUEDIR/$path"
1230	}	1894	}
1231		1895
1232	# and all this just because we cannot iterate over	1896	# and all this just because we cannot iterate over
1233	# all maps in C++...	1897	# all maps in C++...
1234	sub change_all_map_light {	1898	sub change_all_map_light {
…		…
1236		1900
1237	$_->change_map_light ($change)	1901	$_->change_map_light ($change)
1238	for grep $_->outdoor, values %cf::MAP;	1902	for grep $_->outdoor, values %cf::MAP;
1239	}	1903	}
1240		1904
		1905	sub decay_objects {
		1906	my ($self) = @_;
		1907
		1908	return if $self->{deny_reset};
		1909
		1910	$self->do_decay_objects;
		1911	}
		1912
		1913	sub unlink_save {
		1914	my ($self) = @_;
		1915
		1916	utf8::encode (my $save = $self->save_path);
		1917	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1918	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1919	}
		1920
1241	sub try_load_header($) {	1921	sub load_header_from($) {
1242	my ($path) = @_;	1922	my ($self, $path) = @_;
1243		1923
1244	utf8::encode $path;	1924	utf8::encode $path;
1245	aio_open $path, O_RDONLY, 0	1925	my $f = new_from_file cf::object::thawer $path
1246	or return;	1926	or return;
1247		1927
1248	my $map = cf::map::new	1928	$self->_load_header ($f)
1249	or return;	1929	or return;
1250		1930
1251	# for better error messages only, will be overwritten	1931	local $MAP_LOADING{$self->{path}} = $self;
1252	$map->path ($path);	1932	$f->resolve_delayed_derefs;
1253		1933
1254	$map->load_header ($path)	1934	$self->{load_path} = $path;
		1935
		1936	1
		1937	}
		1938
		1939	sub load_header_orig {
		1940	my ($self) = @_;
		1941
		1942	$self->load_header_from ($self->load_path)
		1943	}
		1944
		1945	sub load_header_temp {
		1946	my ($self) = @_;
		1947
		1948	$self->load_header_from ($self->save_path)
		1949	}
		1950
		1951	sub prepare_temp {
		1952	my ($self) = @_;
		1953
		1954	$self->last_access ((delete $self->{last_access})
		1955	|| $cf::RUNTIME); #d#
		1956	# safety
		1957	$self->{instantiate_time} = $cf::RUNTIME
		1958	if $self->{instantiate_time} > $cf::RUNTIME;
		1959	}
		1960
		1961	sub prepare_orig {
		1962	my ($self) = @_;
		1963
		1964	$self->{load_original} = 1;
		1965	$self->{instantiate_time} = $cf::RUNTIME;
		1966	$self->last_access ($cf::RUNTIME);
		1967	$self->instantiate;
		1968	}
		1969
		1970	sub load_header {
		1971	my ($self) = @_;
		1972
		1973	if ($self->load_header_temp) {
		1974	$self->prepare_temp;
		1975	} else {
		1976	$self->load_header_orig
1255	or return;	1977	or return;
		1978	$self->prepare_orig;
		1979	}
1256		1980
1257	$map->{load_path} = $path;	1981	$self->{deny_reset} = 1
		1982	if $self->no_reset;
1258		1983
1259	$map	1984	$self->default_region (cf::region::find_by_path $self->{path})
		1985	unless $self->default_region;
		1986
		1987	1
1260	}	1988	}
1261		1989
1262	sub find;	1990	sub find;
1263	sub find {	1991	sub find {
1264	my ($path, $origin) = @_;	1992	my ($path, $origin) = @_;
1265		1993
1266	#warn "find<$path,$origin>\n";#d#
1267
1268	$path = new cf::path $path, $origin && $origin->path;	1994	$path = normalise $path, $origin && $origin->path;
1269	my $key = $path->as_string;
1270		1995
		1996	cf::lock_wait "map_data:$path";#d#remove
1271	cf::lock_wait "map_find:$key";	1997	cf::lock_wait "map_find:$path";
1272		1998
1273	$cf::MAP{$key} || do {	1999	$cf::MAP{$path} || do {
1274	my $guard = cf::lock_acquire "map_find:$key";	2000	my $guard1 = cf::lock_acquire "map_find:$path";
		2001	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1275		2002
1276	# do it the slow way	2003	my $map = new_from_path cf::map $path
1277	my $map = try_load_header $path->save_path;
1278
1279	Coro::cede;
1280
1281	if ($map) {
1282	$map->last_access ((delete $map->{last_access})
1283	|| $cf::RUNTIME); #d#
1284	# safety
1285	$map->{instantiate_time} = $cf::RUNTIME
1286	if $map->{instantiate_time} > $cf::RUNTIME;
1287	} else {
1288	if (my $rmp = $path->random_map_params) {
1289	$map = generate_random_map $key, $rmp;
1290	} else {
1291	$map = try_load_header $path->load_path;
1292	}
1293
1294	$map or return;	2004	or return;
1295		2005
1296	$map->{load_original} = 1;
1297	$map->{instantiate_time} = $cf::RUNTIME;
1298	$map->last_access ($cf::RUNTIME);
1299	$map->instantiate;
1300
1301	# per-player maps become, after loading, normal maps
1302	$map->per_player (0) if $path->{user_rel};
1303	}
1304
1305	$map->path ($key);
1306	$map->{path} = $path;
1307	$map->{last_save} = $cf::RUNTIME;	2006	$map->{last_save} = $cf::RUNTIME;
1308		2007
1309	Coro::cede;	2008	$map->load_header
		2009	or return;
1310		2010
1311	if ($map->should_reset) {	2011	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2012	# doing this can freeze the server in a sync job, obviously
		2013	#$cf::WAIT_FOR_TICK->wait;
		2014	undef $guard1;
		2015	undef $guard2;
1312	$map->reset;	2016	$map->reset;
1313	undef $guard;
1314	$map = find $path	2017	return find $path;
1315	or return;
1316	}	2018	}
1317		2019
1318	$cf::MAP{$key} = $map	2020	$cf::MAP{$path} = $map
1319	}	2021	}
1320	}	2022	}
		2023
		2024	sub pre_load { }
		2025	sub post_load { }
1321		2026
1322	sub load {	2027	sub load {
1323	my ($self) = @_;	2028	my ($self) = @_;
1324		2029
		2030	local $self->{deny_reset} = 1; # loading can take a long time
		2031
1325	my $path = $self->{path};	2032	my $path = $self->{path};
		2033
		2034	{
1326	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2035	my $guard = cf::lock_acquire "map_data:$path";
1327		2036
		2037	return unless $self->valid;
1328	return if $self->in_memory != cf::MAP_SWAPPED;	2038	return unless $self->in_memory == cf::MAP_SWAPPED;
1329		2039
1330	$self->in_memory (cf::MAP_LOADING);	2040	$self->in_memory (cf::MAP_LOADING);
1331		2041
1332	$self->alloc;	2042	$self->alloc;
1333	$self->load_objects ($self->{load_path}, 1)	2043
		2044	$self->pre_load;
		2045	cf::cede_to_tick;
		2046
		2047	my $f = new_from_file cf::object::thawer $self->{load_path};
		2048	$f->skip_block;
		2049	$self->_load_objects ($f)
1334	or return;	2050	or return;
1335		2051
1336	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2052	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1337	if delete $self->{load_original};	2053	if delete $self->{load_original};
1338		2054
1339	if (my $uniq = $path->uniq_path) {	2055	if (my $uniq = $self->uniq_path) {
1340	utf8::encode $uniq;	2056	utf8::encode $uniq;
1341	if (aio_open $uniq, O_RDONLY, 0) {	2057	unless (aio_stat $uniq) {
		2058	if (my $f = new_from_file cf::object::thawer $uniq) {
1342	$self->clear_unique_items;	2059	$self->clear_unique_items;
1343	$self->load_objects ($uniq, 0);	2060	$self->_load_objects ($f);
		2061	$f->resolve_delayed_derefs;
		2062	}
1344	}	2063	}
1345	}	2064	}
1346		2065
1347	Coro::cede;	2066	$f->resolve_delayed_derefs;
1348		2067
		2068	cf::cede_to_tick;
1349	# now do the right thing for maps	2069	# now do the right thing for maps
1350	$self->link_multipart_objects;	2070	$self->link_multipart_objects;
1351
1352	if ($self->{path}->is_style_map) {
1353	$self->{deny_save} = 1;
1354	$self->{deny_reset} = 1;
1355	} else {
1356	$self->fix_auto_apply;
1357	$self->decay_objects;
1358	$self->update_buttons;
1359	$self->set_darkness_map;
1360	$self->difficulty ($self->estimate_difficulty)	2071	$self->difficulty ($self->estimate_difficulty)
1361	unless $self->difficulty;	2072	unless $self->difficulty;
		2073	cf::cede_to_tick;
		2074
		2075	unless ($self->{deny_activate}) {
		2076	$self->decay_objects;
		2077	$self->fix_auto_apply;
		2078	$self->update_buttons;
		2079	cf::cede_to_tick;
		2080	$self->set_darkness_map;
		2081	cf::cede_to_tick;
1362	$self->activate;	2082	$self->activate;
1363	}	2083	}
1364		2084
1365	Coro::cede;	2085	$self->{last_save} = $cf::RUNTIME;
		2086	$self->last_access ($cf::RUNTIME);
1366		2087
1367	$self->in_memory (cf::MAP_IN_MEMORY);	2088	$self->in_memory (cf::MAP_IN_MEMORY);
		2089	}
		2090
		2091	$self->post_load;
		2092	}
		2093
		2094	sub customise_for {
		2095	my ($self, $ob) = @_;
		2096
		2097	return find "~" . $ob->name . "/" . $self->{path}
		2098	if $self->per_player;
		2099
		2100	# return find "?party/" . $ob->name . "/" . $self->{path}
		2101	# if $self->per_party;
		2102
		2103	$self
		2104	}
		2105
		2106	# find and load all maps in the 3x3 area around a map
		2107	sub load_neighbours {
		2108	my ($map) = @_;
		2109
		2110	my @neigh; # diagonal neighbours
		2111
		2112	for (0 .. 3) {
		2113	my $neigh = $map->tile_path ($_)
		2114	or next;
		2115	$neigh = find $neigh, $map
		2116	or next;
		2117	$neigh->load;
		2118
		2119	push @neigh,
		2120	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2121	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2122	}
		2123
		2124	for (grep defined $_->[0], @neigh) {
		2125	my ($path, $origin) = @$_;
		2126	my $neigh = find $path, $origin
		2127	or next;
		2128	$neigh->load;
		2129	}
1368	}	2130	}
1369		2131
1370	sub find_sync {	2132	sub find_sync {
1371	my ($path, $origin) = @_;	2133	my ($path, $origin) = @_;
1372		2134
1373	cf::sync_job { cf::map::find $path, $origin }	2135	cf::sync_job { find $path, $origin }
1374	}	2136	}
1375		2137
1376	sub do_load_sync {	2138	sub do_load_sync {
1377	my ($map) = @_;	2139	my ($map) = @_;
1378		2140
		2141	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2142	if $Coro::current == $Coro::main;
		2143
1379	cf::sync_job { $map->load };	2144	cf::sync_job { $map->load };
		2145	}
		2146
		2147	our %MAP_PREFETCH;
		2148	our $MAP_PREFETCHER = undef;
		2149
		2150	sub find_async {
		2151	my ($path, $origin, $load) = @_;
		2152
		2153	$path = normalise $path, $origin && $origin->{path};
		2154
		2155	if (my $map = $cf::MAP{$path}) {
		2156	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2157	}
		2158
		2159	$MAP_PREFETCH{$path} |= $load;
		2160
		2161	$MAP_PREFETCHER ||= cf::async {
		2162	$Coro::current->{desc} = "map prefetcher";
		2163
		2164	while (%MAP_PREFETCH) {
		2165	while (my ($k, $v) = each %MAP_PREFETCH) {
		2166	if (my $map = find $k) {
		2167	$map->load if $v;
		2168	}
		2169
		2170	delete $MAP_PREFETCH{$k};
		2171	}
		2172	}
		2173	undef $MAP_PREFETCHER;
		2174	};
		2175	$MAP_PREFETCHER->prio (6);
		2176
		2177	()
1380	}	2178	}
1381		2179
1382	sub save {	2180	sub save {
1383	my ($self) = @_;	2181	my ($self) = @_;
1384		2182
1385	my $lock = cf::lock_acquire "map_data:" . $self->path;	2183	my $lock = cf::lock_acquire "map_data:$self->{path}";
1386		2184
1387	$self->{last_save} = $cf::RUNTIME;	2185	$self->{last_save} = $cf::RUNTIME;
1388		2186
1389	return unless $self->dirty;	2187	return unless $self->dirty;
1390		2188
1391	my $save = $self->{path}->save_path; utf8::encode $save;	2189	my $save = $self->save_path; utf8::encode $save;
1392	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2190	my $uniq = $self->uniq_path; utf8::encode $uniq;
1393		2191
1394	$self->{load_path} = $save;	2192	$self->{load_path} = $save;
1395		2193
1396	return if $self->{deny_save};	2194	return if $self->{deny_save};
1397		2195
1398	local $self->{last_access} = $self->last_access;#d#	2196	local $self->{last_access} = $self->last_access;#d#
1399		2197
1400	cf::async {	2198	cf::async {
		2199	$Coro::current->{desc} = "map player save";
1401	$_->contr->save for $self->players;	2200	$_->contr->save for $self->players;
1402	};	2201	};
1403		2202
1404	if ($uniq) {	2203	if ($uniq) {
1405	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2204	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1406	$self->save_objects ($uniq, cf::IO_UNIQUES);	2205	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1407	} else {	2206	} else {
1408	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2207	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1409	}	2208	}
1410	}	2209	}
1411		2210
1412	sub swap_out {	2211	sub swap_out {
1413	my ($self) = @_;	2212	my ($self) = @_;
1414		2213
1415	# save first because save cedes	2214	# save first because save cedes
1416	$self->save;	2215	$self->save;
1417		2216
1418	my $lock = cf::lock_acquire "map_data:" . $self->path;	2217	my $lock = cf::lock_acquire "map_data:$self->{path}";
1419		2218
1420	return if $self->players;	2219	return if $self->players;
1421	return if $self->in_memory != cf::MAP_IN_MEMORY;	2220	return if $self->in_memory != cf::MAP_IN_MEMORY;
1422	return if $self->{deny_save};	2221	return if $self->{deny_save};
1423		2222
		2223	$self->in_memory (cf::MAP_SWAPPED);
		2224
		2225	$self->deactivate;
		2226	$_->clear_links_to ($self) for values %cf::MAP;
1424	$self->clear;	2227	$self->clear;
1425	$self->in_memory (cf::MAP_SWAPPED);
1426	}	2228	}
1427		2229
1428	sub reset_at {	2230	sub reset_at {
1429	my ($self) = @_;	2231	my ($self) = @_;
1430		2232
1431	# TODO: safety, remove and allow resettable per-player maps	2233	# TODO: safety, remove and allow resettable per-player maps
1432	return 1e99 if $self->{path}{user_rel};
1433	return 1e99 if $self->{deny_reset};	2234	return 1e99 if $self->{deny_reset};
1434		2235
1435	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2236	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1436	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2237	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1437		2238
…		…
1442	my ($self) = @_;	2243	my ($self) = @_;
1443		2244
1444	$self->reset_at <= $cf::RUNTIME	2245	$self->reset_at <= $cf::RUNTIME
1445	}	2246	}
1446		2247
1447	sub unlink_save {
1448	my ($self) = @_;
1449
1450	utf8::encode (my $save = $self->{path}->save_path);
1451	aioreq_pri 3; IO::AIO::aio_unlink $save;
1452	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1453	}
1454
1455	sub rename {
1456	my ($self, $new_path) = @_;
1457
1458	$self->unlink_save;
1459
1460	delete $cf::MAP{$self->path};
1461	$self->{path} = new cf::path $new_path;
1462	$self->path ($self->{path}->as_string);
1463	$cf::MAP{$self->path} = $self;
1464
1465	$self->save;
1466	}
1467
1468	sub reset {	2248	sub reset {
1469	my ($self) = @_;	2249	my ($self) = @_;
1470		2250
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2251	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2252
1473	return if $self->players;	2253	return if $self->players;
1474	return if $self->{path}{user_rel};#d#
1475		2254
1476	warn "resetting map ", $self->path;#d#	2255	warn "resetting map ", $self->path;
		2256
		2257	$self->in_memory (cf::MAP_SWAPPED);
		2258
		2259	# need to save uniques path
		2260	unless ($self->{deny_save}) {
		2261	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2262
		2263	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2264	if $uniq;
		2265	}
1477		2266
1478	delete $cf::MAP{$self->path};	2267	delete $cf::MAP{$self->path};
1479		2268
		2269	$self->deactivate;
1480	$_->clear_links_to ($self) for values %cf::MAP;	2270	$_->clear_links_to ($self) for values %cf::MAP;
		2271	$self->clear;
1481		2272
1482	$self->unlink_save;	2273	$self->unlink_save;
1483	$self->destroy;	2274	$self->destroy;
1484	}	2275	}
1485		2276
1486	my $nuke_counter = "aaaa";	2277	my $nuke_counter = "aaaa";
1487		2278
1488	sub nuke {	2279	sub nuke {
1489	my ($self) = @_;	2280	my ($self) = @_;
1490		2281
		2282	{
		2283	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2284
		2285	delete $cf::MAP{$self->path};
		2286
		2287	$self->unlink_save;
		2288
		2289	bless $self, "cf::map";
		2290	delete $self->{deny_reset};
1491	$self->{deny_save} = 1;	2291	$self->{deny_save} = 1;
1492	$self->reset_timeout (1);	2292	$self->reset_timeout (1);
1493	$self->rename ("{nuke}/" . ($nuke_counter++));	2293	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2294
		2295	$cf::MAP{$self->path} = $self;
		2296	}
		2297
1494	$self->reset; # polite request, might not happen	2298	$self->reset; # polite request, might not happen
1495	}	2299	}
1496		2300
1497	sub customise_for {	2301	=item $maps = cf::map::tmp_maps
1498	my ($map, $ob) = @_;
1499		2302
1500	if ($map->per_player) {	2303	Returns an arrayref with all map paths of currently instantiated and saved
1501	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2304	maps. May block.
		2305
		2306	=cut
		2307
		2308	sub tmp_maps() {
1502	}	2309	[
1503		2310	map {
1504	$map	2311	utf8::decode $_;
		2312	/\.map$/
		2313	? normalise $_
		2314	: ()
		2315	} @{ aio_readdir $TMPDIR or [] }
		2316	]
1505	}	2317	}
1506		2318
1507	sub emergency_save {	2319	=item $maps = cf::map::random_maps
1508	my $freeze_guard = cf::freeze_mainloop;
1509		2320
1510	warn "enter emergency perl save\n";	2321	Returns an arrayref with all map paths of currently instantiated and saved
		2322	random maps. May block.
1511		2323
1512	cf::sync_job {	2324	=cut
1513	warn "begin emergency player save\n";
1514	$_->save for values %cf::PLAYER;
1515	warn "end emergency player save\n";
1516		2325
1517	warn "begin emergency map save\n";	2326	sub random_maps() {
1518	$_->save for values %cf::MAP;	2327	[
1519	warn "end emergency map save\n";	2328	map {
1520	};	2329	utf8::decode $_;
		2330	/\.map$/
		2331	? normalise "?random/$_"
		2332	: ()
		2333	} @{ aio_readdir $RANDOMDIR or [] }
		2334	]
		2335	}
1521		2336
1522	warn "leave emergency perl save\n";	2337	=item cf::map::unique_maps
		2338
		2339	Returns an arrayref of paths of all shared maps that have
		2340	instantiated unique items. May block.
		2341
		2342	=cut
		2343
		2344	sub unique_maps() {
		2345	[
		2346	map {
		2347	utf8::decode $_;
		2348	/\.map$/
		2349	? normalise $_
		2350	: ()
		2351	} @{ aio_readdir $UNIQUEDIR or [] }
		2352	]
1523	}	2353	}
1524		2354
1525	package cf;	2355	package cf;
1526		2356
1527	=back	2357	=back
1528		2358
		2359	=head3 cf::object
		2360
		2361	=cut
		2362
		2363	package cf::object;
		2364
		2365	=over 4
		2366
		2367	=item $ob->inv_recursive
		2368
		2369	Returns the inventory of the object _and_ their inventories, recursively.
		2370
		2371	=cut
		2372
		2373	sub inv_recursive_;
		2374	sub inv_recursive_ {
		2375	map { $_, inv_recursive_ $_->inv } @_
		2376	}
		2377
		2378	sub inv_recursive {
		2379	inv_recursive_ inv $_[0]
		2380	}
		2381
		2382	=item $ref = $ob->ref
		2383
		2384	creates and returns a persistent reference to an objetc that can be stored as a string.
		2385
		2386	=item $ob = cf::object::deref ($refstring)
		2387
		2388	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2389	even if the object actually exists. May block.
		2390
		2391	=cut
		2392
		2393	sub deref {
		2394	my ($ref) = @_;
		2395
		2396	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2397	my ($uuid, $name) = ($1, $2);
		2398	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2399	or return;
		2400	$pl->ob->uuid eq $uuid
		2401	or return;
		2402
		2403	$pl->ob
		2404	} else {
		2405	warn "$ref: cannot resolve object reference\n";
		2406	undef
		2407	}
		2408	}
		2409
		2410	package cf;
		2411
		2412	=back
1529		2413
1530	=head3 cf::object::player	2414	=head3 cf::object::player
1531		2415
1532	=over 4	2416	=over 4
1533		2417
…		…
1547		2431
1548	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2432	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1549		2433
1550	if ($self->{record_replies}) {	2434	if ($self->{record_replies}) {
1551	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2435	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2436
1552	} else {	2437	} else {
		2438	my $pl = $self->contr;
		2439
		2440	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2441	my $dialog = $pl->{npc_dialog};
		2442	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2443
		2444	} else {
1553	$msg = $npc->name . " says: $msg" if $npc;	2445	$msg = $npc->name . " says: $msg" if $npc;
1554	$self->message ($msg, $flags);	2446	$self->message ($msg, $flags);
		2447	}
1555	}	2448	}
		2449	}
		2450
		2451	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2452
		2453	=cut
		2454
		2455	sub cf::object::send_msg {
		2456	my $pl = shift->contr
		2457	or return;
		2458	$pl->send_msg (@_);
1556	}	2459	}
1557		2460
1558	=item $player_object->may ("access")	2461	=item $player_object->may ("access")
1559		2462
1560	Returns wether the given player is authorized to access resource "access"	2463	Returns wether the given player is authorized to access resource "access"
…		…
1573		2476
1574	=item $player_object->enter_link	2477	=item $player_object->enter_link
1575		2478
1576	Freezes the player and moves him/her to a special map (C<{link}>).	2479	Freezes the player and moves him/her to a special map (C<{link}>).
1577		2480
1578	The player should be reaosnably safe there for short amounts of time. You	2481	The player should be reasonably safe there for short amounts of time. You
1579	I<MUST> call C<leave_link> as soon as possible, though.	2482	I<MUST> call C<leave_link> as soon as possible, though.
1580		2483
		2484	Will never block.
		2485
1581	=item $player_object->leave_link ($map, $x, $y)	2486	=item $player_object->leave_link ($map, $x, $y)
1582		2487
1583	Moves the player out of the specila link map onto the given map. If the	2488	Moves the player out of the special C<{link}> map onto the specified
1584	map is not valid (or omitted), the player will be moved back to the	2489	map. If the map is not valid (or omitted), the player will be moved back
1585	location he/she was before the call to C<enter_link>, or, if that fails,	2490	to the location he/she was before the call to C<enter_link>, or, if that
1586	to the emergency map position.	2491	fails, to the emergency map position.
1587		2492
1588	Might block.	2493	Might block.
1589		2494
1590	=cut	2495	=cut
		2496
		2497	sub link_map {
		2498	unless ($LINK_MAP) {
		2499	$LINK_MAP = cf::map::find "{link}"
		2500	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2501	$LINK_MAP->load;
		2502	}
		2503
		2504	$LINK_MAP
		2505	}
1591		2506
1592	sub cf::object::player::enter_link {	2507	sub cf::object::player::enter_link {
1593	my ($self) = @_;	2508	my ($self) = @_;
1594		2509
1595	$self->deactivate_recursive;	2510	$self->deactivate_recursive;
1596		2511
1597	return if $self->map == $LINK_MAP;	2512	return if UNIVERSAL::isa $self->map, "ext::map_link";
1598		2513
1599	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2514	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1600	if $self->map;	2515	if $self->map && $self->map->{path} ne "{link}";
1601		2516
1602	$self->enter_map ($LINK_MAP, 20, 20);	2517	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1603	}	2518	}
1604		2519
1605	sub cf::object::player::leave_link {	2520	sub cf::object::player::leave_link {
1606	my ($self, $map, $x, $y) = @_;	2521	my ($self, $map, $x, $y) = @_;
		2522
		2523	return unless $self->contr->active;
1607		2524
1608	my $link_pos = delete $self->{_link_pos};	2525	my $link_pos = delete $self->{_link_pos};
1609		2526
1610	unless ($map) {	2527	unless ($map) {
1611	# restore original map position	2528	# restore original map position
…		…
1625	# use -1 or undef as default coordinates, not 0, 0	2542	# use -1 or undef as default coordinates, not 0, 0
1626	($x, $y) = ($map->enter_x, $map->enter_y)	2543	($x, $y) = ($map->enter_x, $map->enter_y)
1627	if $x <=0 && $y <= 0;	2544	if $x <=0 && $y <= 0;
1628		2545
1629	$map->load;	2546	$map->load;
		2547	$map->load_neighbours;
1630		2548
1631	return unless $self->contr->active;	2549	return unless $self->contr->active;
1632	$self->activate_recursive;	2550	$self->activate_recursive;
		2551
		2552	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1633	$self->enter_map ($map, $x, $y);	2553	$self->enter_map ($map, $x, $y);
1634	}	2554	}
1635		2555
1636	cf::player->attach (	2556	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1637	on_logout => sub {
1638	my ($pl) = @_;
1639		2557
1640	# abort map switching before logout	2558	Moves the player to the given map-path and coordinates by first freezing
1641	if ($pl->ob->{_link_pos}) {	2559	her, loading and preparing them map, calling the provided $check callback
1642	cf::sync_job {	2560	that has to return the map if sucecssful, and then unfreezes the player on
1643	$pl->ob->leave_link	2561	the new (success) or old (failed) map position. In either case, $done will
1644	};	2562	be called at the end of this process.
1645	}
1646	},
1647	on_login => sub {
1648	my ($pl) = @_;
1649		2563
1650	# try to abort aborted map switching on player login :)
1651	# should happen only on crashes
1652	if ($pl->ob->{_link_pos}) {
1653	$pl->ob->enter_link;
1654	(async {
1655	# we need this sleep as the login has a concurrent enter_exit running
1656	# and this sleep increases chances of the player not ending up in scorn
1657	$pl->ob->reply (undef,
1658	"There was an internal problem at your last logout, "
1659	. "the server will try to bring you to your intended destination in a second.",
1660	cf::NDI_RED);
1661	Coro::Timer::sleep 1;
1662	$pl->ob->leave_link;
1663	})->prio (2);
1664	}
1665	},
1666	);
1667
1668	=item $player_object->goto ($path, $x, $y)
1669
1670	=cut	2564	=cut
		2565
		2566	our $GOTOGEN;
1671		2567
1672	sub cf::object::player::goto {	2568	sub cf::object::player::goto {
1673	my ($self, $path, $x, $y) = @_;	2569	my ($self, $path, $x, $y, $check, $done) = @_;
		2570
		2571	# do generation counting so two concurrent goto's will be executed in-order
		2572	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1674		2573
1675	$self->enter_link;	2574	$self->enter_link;
1676		2575
1677	(async {	2576	(async {
1678	$path = new cf::path $path;	2577	$Coro::current->{desc} = "player::goto $path $x $y";
1679		2578
1680	my $map = cf::map::find $path->as_string;	2579	# *tag paths override both path and x|y
		2580	if ($path =~ /^\*(.*)$/) {
		2581	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2582	my $ob = $obs[rand @obs];
		2583
		2584	# see if we actually can go there
		2585	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2586	$ob = $obs[rand @obs];
		2587	} else {
		2588	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	}
		2590	# else put us there anyways for now #d#
		2591
		2592	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2593	} else {
		2594	($path, $x, $y) = (undef, undef, undef);
		2595	}
		2596	}
		2597
		2598	my $map = eval {
		2599	my $map = defined $path ? cf::map::find $path : undef;
		2600
		2601	if ($map) {
1681	$map = $map->customise_for ($self) if $map;	2602	$map = $map->customise_for ($self);
1682		2603	$map = $check->($map) if $check && $map;
1683	# warn "entering ", $map->path, " at ($x, $y)\n"	2604	} else {
1684	# if $map;
1685
1686	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2605	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2606	}
1687		2607
		2608	$map
		2609	};
		2610
		2611	if ($@) {
		2612	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2613	LOG llevError | logBacktrace, Carp::longmess $@;
		2614	}
		2615
		2616	if ($gen == $self->{_goto_generation}) {
		2617	delete $self->{_goto_generation};
1688	$self->leave_link ($map, $x, $y);	2618	$self->leave_link ($map, $x, $y);
		2619	}
		2620
		2621	$done->() if $done;
1689	})->prio (1);	2622	})->prio (1);
1690	}	2623	}
1691		2624
1692	=item $player_object->enter_exit ($exit_object)	2625	=item $player_object->enter_exit ($exit_object)
1693		2626
…		…
1695		2628
1696	sub parse_random_map_params {	2629	sub parse_random_map_params {
1697	my ($spec) = @_;	2630	my ($spec) = @_;
1698		2631
1699	my $rmp = { # defaults	2632	my $rmp = { # defaults
1700	xsize => 10,	2633	xsize => (cf::rndm 15, 40),
1701	ysize => 10,	2634	ysize => (cf::rndm 15, 40),
		2635	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2636	#layout => string,
1702	};	2637	};
1703		2638
1704	for (split /\n/, $spec) {	2639	for (split /\n/, $spec) {
1705	my ($k, $v) = split /\s+/, $_, 2;	2640	my ($k, $v) = split /\s+/, $_, 2;
1706		2641
…		…
1710	$rmp	2645	$rmp
1711	}	2646	}
1712		2647
1713	sub prepare_random_map {	2648	sub prepare_random_map {
1714	my ($exit) = @_;	2649	my ($exit) = @_;
		2650
		2651	my $guard = cf::lock_acquire "exit_prepare:$exit";
1715		2652
1716	# all this does is basically replace the /! path by	2653	# all this does is basically replace the /! path by
1717	# a new random map path (?random/...) with a seed	2654	# a new random map path (?random/...) with a seed
1718	# that depends on the exit object	2655	# that depends on the exit object
1719		2656
1720	my $rmp = parse_random_map_params $exit->msg;	2657	my $rmp = parse_random_map_params $exit->msg;
1721		2658
1722	if ($exit->map) {	2659	if ($exit->map) {
1723	$rmp->{region} = $exit->map->region_name;	2660	$rmp->{region} = $exit->region->name;
1724	$rmp->{origin_map} = $exit->map->path;	2661	$rmp->{origin_map} = $exit->map->path;
1725	$rmp->{origin_x} = $exit->x;	2662	$rmp->{origin_x} = $exit->x;
1726	$rmp->{origin_y} = $exit->y;	2663	$rmp->{origin_y} = $exit->y;
1727	}	2664	}
1728		2665
1729	$rmp->{random_seed} ||= $exit->random_seed;	2666	$rmp->{random_seed} ||= $exit->random_seed;
1730		2667
1731	my $data = cf::to_json $rmp;	2668	my $data = cf::encode_json $rmp;
1732	my $md5 = Digest::MD5::md5_hex $data;	2669	my $md5 = Digest::MD5::md5_hex $data;
		2670	my $meta = "$RANDOMDIR/$md5.meta";
1733		2671
1734	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2672	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1735	aio_write $fh, 0, (length $data), $data, 0;	2673	aio_write $fh, 0, (length $data), $data, 0;
		2674	undef $fh;
		2675	aio_rename "$meta~", $meta;
1736		2676
1737	$exit->slaying ("?random/$md5");	2677	$exit->slaying ("?random/$md5");
1738	$exit->msg (undef);	2678	$exit->msg (undef);
1739	}	2679	}
1740	}	2680	}
…		…
1742	sub cf::object::player::enter_exit {	2682	sub cf::object::player::enter_exit {
1743	my ($self, $exit) = @_;	2683	my ($self, $exit) = @_;
1744		2684
1745	return unless $self->type == cf::PLAYER;	2685	return unless $self->type == cf::PLAYER;
1746		2686
		2687	if ($exit->slaying eq "/!") {
		2688	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2689	# the problem is that $exit might not survive long enough
		2690	# so it needs to be done right now, right here
		2691	cf::sync_job { prepare_random_map $exit };
		2692	}
		2693
		2694	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2695	my $hp = $exit->stats->hp;
		2696	my $sp = $exit->stats->sp;
		2697
1747	$self->enter_link;	2698	$self->enter_link;
1748		2699
		2700	# if exit is damned, update players death & WoR home-position
		2701	$self->contr->savebed ($slaying, $hp, $sp)
		2702	if $exit->flag (FLAG_DAMNED);
		2703
1749	(async {	2704	(async {
		2705	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2706
1750	$self->deactivate_recursive; # just to be sure	2707	$self->deactivate_recursive; # just to be sure
1751	unless (eval {	2708	unless (eval {
1752	prepare_random_map $exit	2709	$self->goto ($slaying, $hp, $sp);
1753	if $exit->slaying eq "/!";
1754
1755	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1756	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1757		2710
1758	1;	2711	1;
1759	}) {	2712	}) {
1760	$self->message ("Something went wrong deep within the crossfire server. "	2713	$self->message ("Something went wrong deep within the crossfire server. "
1761	. "I'll try to bring you back to the map you were before. "	2714	. "I'll try to bring you back to the map you were before. "
1762	. "Please report this to the dungeon master",	2715	. "Please report this to the dungeon master!",
1763	cf::NDI_UNIQUE | cf::NDI_RED);	2716	cf::NDI_UNIQUE | cf::NDI_RED);
1764		2717
1765	warn "ERROR in enter_exit: $@";	2718	warn "ERROR in enter_exit: $@";
1766	$self->leave_link;	2719	$self->leave_link;
1767	}	2720	}
1768	})->prio (1);	2721	})->prio (1);
…		…
1781		2734
1782	sub cf::client::send_drawinfo {	2735	sub cf::client::send_drawinfo {
1783	my ($self, $text, $flags) = @_;	2736	my ($self, $text, $flags) = @_;
1784		2737
1785	utf8::encode $text;	2738	utf8::encode $text;
1786	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2739	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1787	}	2740	}
1788		2741
		2742	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2743
		2744	Send a drawinfo or msg packet to the client, formatting the msg for the
		2745	client if neccessary. C<$type> should be a string identifying the type of
		2746	the message, with C<log> being the default. If C<$color> is negative, suppress
		2747	the message unless the client supports the msg packet.
		2748
		2749	=cut
		2750
		2751	# non-persistent channels (usually the info channel)
		2752	our %CHANNEL = (
		2753	"c/identify" => {
		2754	id => "infobox",
		2755	title => "Identify",
		2756	reply => undef,
		2757	tooltip => "Items recently identified",
		2758	},
		2759	"c/examine" => {
		2760	id => "infobox",
		2761	title => "Examine",
		2762	reply => undef,
		2763	tooltip => "Signs and other items you examined",
		2764	},
		2765	"c/book" => {
		2766	id => "infobox",
		2767	title => "Book",
		2768	reply => undef,
		2769	tooltip => "The contents of a note or book",
		2770	},
		2771	"c/lookat" => {
		2772	id => "infobox",
		2773	title => "Look",
		2774	reply => undef,
		2775	tooltip => "What you saw there",
		2776	},
		2777	"c/who" => {
		2778	id => "infobox",
		2779	title => "Players",
		2780	reply => undef,
		2781	tooltip => "Shows players who are currently online",
		2782	},
		2783	"c/body" => {
		2784	id => "infobox",
		2785	title => "Body Parts",
		2786	reply => undef,
		2787	tooltip => "Shows which body parts you posess and are available",
		2788	},
		2789	"c/uptime" => {
		2790	id => "infobox",
		2791	title => "Uptime",
		2792	reply => undef,
		2793	tooltip => "How long the server has been running since last restart",
		2794	},
		2795	"c/mapinfo" => {
		2796	id => "infobox",
		2797	title => "Map Info",
		2798	reply => undef,
		2799	tooltip => "Information related to the maps",
		2800	},
		2801	);
		2802
		2803	sub cf::client::send_msg {
		2804	my ($self, $channel, $msg, $color, @extra) = @_;
		2805
		2806	$msg = $self->pl->expand_cfpod ($msg);
		2807
		2808	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2809
		2810	# check predefined channels, for the benefit of C
		2811	if ($CHANNEL{$channel}) {
		2812	$channel = $CHANNEL{$channel};
		2813
		2814	$self->ext_msg (channel_info => $channel)
		2815	if $self->can_msg;
		2816
		2817	$channel = $channel->{id};
		2818
		2819	} elsif (ref $channel) {
		2820	# send meta info to client, if not yet sent
		2821	unless (exists $self->{channel}{$channel->{id}}) {
		2822	$self->{channel}{$channel->{id}} = $channel;
		2823	$self->ext_msg (channel_info => $channel)
		2824	if $self->can_msg;
		2825	}
		2826
		2827	$channel = $channel->{id};
		2828	}
		2829
		2830	return unless @extra || length $msg;
		2831
		2832	if ($self->can_msg) {
		2833	# default colour, mask it out
		2834	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2835	if $color & cf::NDI_DEF;
		2836
		2837	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2838	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2839	} else {
		2840	if ($color >= 0) {
		2841	# replace some tags by gcfclient-compatible ones
		2842	for ($msg) {
		2843	1 while
		2844	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2845	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2846	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2847	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2848	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2849	}
		2850
		2851	$color &= cf::NDI_COLOR_MASK;
		2852
		2853	utf8::encode $msg;
		2854
		2855	if (0 && $msg =~ /\[/) {
		2856	# COMMAND/INFO
		2857	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2858	} else {
		2859	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2860	$self->send_packet ("drawinfo $color $msg")
		2861	}
		2862	}
		2863	}
		2864	}
		2865
		2866	=item $client->ext_msg ($type, @msg)
		2867
		2868	Sends an ext event to the client.
		2869
		2870	=cut
		2871
		2872	sub cf::client::ext_msg($$@) {
		2873	my ($self, $type, @msg) = @_;
		2874
		2875	if ($self->extcmd == 2) {
		2876	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2877	} elsif ($self->extcmd == 1) { # TODO: remove
		2878	push @msg, msgtype => "event_$type";
		2879	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2880	}
		2881	}
		2882
		2883	=item $client->ext_reply ($msgid, @msg)
		2884
		2885	Sends an ext reply to the client.
		2886
		2887	=cut
		2888
		2889	sub cf::client::ext_reply($$@) {
		2890	my ($self, $id, @msg) = @_;
		2891
		2892	if ($self->extcmd == 2) {
		2893	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2894	} elsif ($self->extcmd == 1) {
		2895	#TODO: version 1, remove
		2896	unshift @msg, msgtype => "reply", msgid => $id;
		2897	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2898	}
		2899	}
1789		2900
1790	=item $success = $client->query ($flags, "text", \&cb)	2901	=item $success = $client->query ($flags, "text", \&cb)
1791		2902
1792	Queues a query to the client, calling the given callback with	2903	Queues a query to the client, calling the given callback with
1793	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2904	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1794	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2905	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1795		2906
1796	Queries can fail, so check the return code. Or don't, as queries will become	2907	Queries can fail, so check the return code. Or don't, as queries will
1797	reliable at some point in the future.	2908	become reliable at some point in the future.
1798		2909
1799	=cut	2910	=cut
1800		2911
1801	sub cf::client::query {	2912	sub cf::client::query {
1802	my ($self, $flags, $text, $cb) = @_;	2913	my ($self, $flags, $text, $cb) = @_;
…		…
1810	utf8::encode $text;	2921	utf8::encode $text;
1811	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2922	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1812		2923
1813	$self->send_packet ($self->{query_queue}[0][0])	2924	$self->send_packet ($self->{query_queue}[0][0])
1814	if @{ $self->{query_queue} } == 1;	2925	if @{ $self->{query_queue} } == 1;
		2926
		2927	1
1815	}	2928	}
1816		2929
1817	cf::client->attach (	2930	cf::client->attach (
		2931	on_connect => sub {
		2932	my ($ns) = @_;
		2933
		2934	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2935	},
1818	on_reply => sub {	2936	on_reply => sub {
1819	my ($ns, $msg) = @_;	2937	my ($ns, $msg) = @_;
1820		2938
1821	# this weird shuffling is so that direct followup queries	2939	# this weird shuffling is so that direct followup queries
1822	# get handled first	2940	# get handled first
1823	my $queue = delete $ns->{query_queue}	2941	my $queue = delete $ns->{query_queue}
1824	or return; # be conservative, not sure how that can happen, but we saw a crash here	2942	or return; # be conservative, not sure how that can happen, but we saw a crash here
1825		2943
1826	(shift @$queue)->[1]->($msg);	2944	(shift @$queue)->[1]->($msg);
		2945	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1827		2946
1828	push @{ $ns->{query_queue} }, @$queue;	2947	push @{ $ns->{query_queue} }, @$queue;
1829		2948
1830	if (@{ $ns->{query_queue} } == @$queue) {	2949	if (@{ $ns->{query_queue} } == @$queue) {
1831	if (@$queue) {	2950	if (@$queue) {
…		…
1833	} else {	2952	} else {
1834	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2953	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1835	}	2954	}
1836	}	2955	}
1837	},	2956	},
		2957	on_exticmd => sub {
		2958	my ($ns, $buf) = @_;
		2959
		2960	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2961
		2962	if (ref $msg) {
		2963	my ($type, $reply, @payload) =
		2964	"ARRAY" eq ref $msg
		2965	? @$msg
		2966	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2967
		2968	my @reply;
		2969
		2970	if (my $cb = $EXTICMD{$type}) {
		2971	@reply = $cb->($ns, @payload);
		2972	}
		2973
		2974	$ns->ext_reply ($reply, @reply)
		2975	if $reply;
		2976
		2977	} else {
		2978	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2979	}
		2980
		2981	cf::override;
		2982	},
1838	);	2983	);
1839		2984
1840	=item $client->async (\&cb)	2985	=item $client->async (\&cb)
1841		2986
1842	Create a new coroutine, running the specified callback. The coroutine will	2987	Create a new coroutine, running the specified callback. The coroutine will
…		…
1883	our $safe = new Safe "safe";	3028	our $safe = new Safe "safe";
1884	our $safe_hole = new Safe::Hole;	3029	our $safe_hole = new Safe::Hole;
1885		3030
1886	$SIG{FPE} = 'IGNORE';	3031	$SIG{FPE} = 'IGNORE';
1887		3032
1888	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3033	$safe->permit_only (Opcode::opset qw(
		3034	:base_core :base_mem :base_orig :base_math
		3035	grepstart grepwhile mapstart mapwhile
		3036	sort time
		3037	));
1889		3038
1890	# here we export the classes and methods available to script code	3039	# here we export the classes and methods available to script code
1891		3040
1892	=pod	3041	=pod
1893		3042
1894	The following fucntions and emthods are available within a safe environment:	3043	The following functions and methods are available within a safe environment:
1895		3044
1896	cf::object contr pay_amount pay_player map	3045	cf::object
		3046	contr pay_amount pay_player map x y force_find force_add destroy
		3047	insert remove name archname title slaying race decrease_ob_nr
		3048
1897	cf::object::player player	3049	cf::object::player
1898	cf::player peaceful	3050	player
1899	cf::map trigger	3051
		3052	cf::player
		3053	peaceful
		3054
		3055	cf::map
		3056	trigger
1900		3057
1901	=cut	3058	=cut
1902		3059
1903	for (	3060	for (
1904	["cf::object" => qw(contr pay_amount pay_player map)],	3061	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3062	insert remove inv name archname title slaying race
		3063	decrease_ob_nr destroy)],
1905	["cf::object::player" => qw(player)],	3064	["cf::object::player" => qw(player)],
1906	["cf::player" => qw(peaceful)],	3065	["cf::player" => qw(peaceful)],
1907	["cf::map" => qw(trigger)],	3066	["cf::map" => qw(trigger)],
1908	) {	3067	) {
1909	no strict 'refs';	3068	no strict 'refs';
…		…
1980	=back	3139	=back
1981		3140
1982	=cut	3141	=cut
1983		3142
1984	#############################################################################	3143	#############################################################################
		3144	# the server's init and main functions
1985		3145
1986	=head2 EXTENSION DATABASE SUPPORT	3146	sub load_facedata($) {
		3147	my ($path) = @_;
1987		3148
1988	Crossfire maintains a very simple database for extension use. It can	3149	# HACK to clear player env face cache, we need some signal framework
1989	currently store anything that can be serialised using Storable, which	3150	# for this (global event?)
1990	excludes objects.	3151	%ext::player_env::MUSIC_FACE_CACHE = ();
1991		3152
1992	The parameter C<$family> should best start with the name of the extension	3153	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1993	using it, it should be unique.
1994		3154
1995	=over 4	3155	warn "loading facedata from $path\n";
1996		3156
1997	=item $hashref = cf::db_get $family	3157	my $facedata;
		3158	0 < aio_load $path, $facedata
		3159	or die "$path: $!";
1998		3160
1999	Return a hashref for use by the extension C<$family>, which can be	3161	$facedata = Coro::Storable::thaw $facedata;
2000	modified. After modifications, you have to call C<cf::db_dirty> or
2001	C<cf::db_sync>.
2002		3162
2003	=item $value = cf::db_get $family => $key	3163	$facedata->{version} == 2
		3164	or cf::cleanup "$path: version mismatch, cannot proceed.";
2004		3165
2005	Returns a single value from the database	3166	# patch in the exptable
2006		3167	$facedata->{resource}{"res/exp_table"} = {
2007	=item cf::db_put $family => $hashref	3168	type => FT_RSRC,
2008		3169	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2009	Stores the given family hashref into the database. Updates are delayed, if
2010	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2011
2012	=item cf::db_put $family => $key => $value
2013
2014	Stores the given C<$value> in the family hash. Updates are delayed, if you
2015	want the data to be synced to disk immediately, use C<cf::db_sync>.
2016
2017	=item cf::db_dirty
2018
2019	Marks the database as dirty, to be updated at a later time.
2020
2021	=item cf::db_sync
2022
2023	Immediately write the database to disk I<if it is dirty>.
2024
2025	=cut
2026
2027	our $DB;
2028
2029	{
2030	my $path = cf::localdir . "/database.pst";
2031
2032	sub db_load() {
2033	$DB = stat $path ? Storable::retrieve $path : { };
2034	}
2035
2036	my $pid;
2037
2038	sub db_save() {
2039	waitpid $pid, 0 if $pid;
2040	if (0 == ($pid = fork)) {
2041	$DB->{_meta}{version} = 1;
2042	Storable::nstore $DB, "$path~";
2043	rename "$path~", $path;
2044	cf::_exit 0 if defined $pid;
2045	}
2046	}
2047
2048	my $dirty;
2049
2050	sub db_sync() {
2051	db_save if $dirty;
2052	undef $dirty;
2053	}
2054
2055	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2056	db_sync;
2057	});	3170	};
		3171	cf::cede_to_tick;
2058		3172
2059	sub db_dirty() {
2060	$dirty = 1;
2061	$idle->start;
2062	}	3173	{
		3174	my $faces = $facedata->{faceinfo};
2063		3175
2064	sub db_get($;$) {	3176	while (my ($face, $info) = each %$faces) {
2065	@_ >= 2	3177	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2066	? $DB->{$_[0]}{$_[1]}
2067	: ($DB->{$_[0]} ||= { })
2068	}
2069		3178
2070	sub db_put($$;$) {	3179	cf::face::set_visibility $idx, $info->{visibility};
2071	if (@_ >= 3) {	3180	cf::face::set_magicmap $idx, $info->{magicmap};
2072	$DB->{$_[0]}{$_[1]} = $_[2];	3181	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2073	} else {	3182	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2074	$DB->{$_[0]} = $_[1];
2075	}
2076	db_dirty;
2077	}
2078		3183
2079	cf::global->attach (	3184	cf::cede_to_tick;
2080	prio => 10000,
2081	on_cleanup => sub {
2082	db_sync;
2083	},	3185	}
2084	);
2085	}
2086		3186
2087	#############################################################################	3187	while (my ($face, $info) = each %$faces) {
2088	# the server's main()	3188	next unless $info->{smooth};
2089		3189
2090	sub cfg_load {	3190	my $idx = cf::face::find $face
		3191	or next;
		3192
		3193	if (my $smooth = cf::face::find $info->{smooth}) {
		3194	cf::face::set_smooth $idx, $smooth;
		3195	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3196	} else {
		3197	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3198	}
		3199
		3200	cf::cede_to_tick;
		3201	}
		3202	}
		3203
		3204	{
		3205	my $anims = $facedata->{animinfo};
		3206
		3207	while (my ($anim, $info) = each %$anims) {
		3208	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3209	cf::cede_to_tick;
		3210	}
		3211
		3212	cf::anim::invalidate_all; # d'oh
		3213	}
		3214
		3215	{
		3216	# TODO: for gcfclient pleasure, we should give resources
		3217	# that gcfclient doesn't grok a >10000 face index.
		3218	my $res = $facedata->{resource};
		3219
		3220	while (my ($name, $info) = each %$res) {
		3221	if (defined $info->{type}) {
		3222	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3223	my $data;
		3224
		3225	if ($info->{type} & 1) {
		3226	# prepend meta info
		3227
		3228	my $meta = $enc->encode ({
		3229	name => $name,
		3230	%{ $info->{meta} || {} },
		3231	});
		3232
		3233	$data = pack "(w/a*)*", $meta, $info->{data};
		3234	} else {
		3235	$data = $info->{data};
		3236	}
		3237
		3238	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3239	cf::face::set_type $idx, $info->{type};
		3240	} else {
		3241	$RESOURCE{$name} = $info;
		3242	}
		3243
		3244	cf::cede_to_tick;
		3245	}
		3246	}
		3247
		3248	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3249
		3250	1
		3251	}
		3252
		3253	cf::global->attach (on_resource_update => sub {
		3254	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3255	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3256
		3257	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3258	my $sound = $soundconf->{compat}[$_]
		3259	or next;
		3260
		3261	my $face = cf::face::find "sound/$sound->[1]";
		3262	cf::sound::set $sound->[0] => $face;
		3263	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3264	}
		3265
		3266	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3267	my $face = cf::face::find "sound/$v";
		3268	cf::sound::set $k => $face;
		3269	}
		3270	}
		3271	});
		3272
		3273	register_exticmd fx_want => sub {
		3274	my ($ns, $want) = @_;
		3275
		3276	while (my ($k, $v) = each %$want) {
		3277	$ns->fx_want ($k, $v);
		3278	}
		3279	};
		3280
		3281	sub reload_regions {
		3282	# HACK to clear player env face cache, we need some signal framework
		3283	# for this (global event?)
		3284	%ext::player_env::MUSIC_FACE_CACHE = ();
		3285
		3286	load_resource_file "$MAPDIR/regions"
		3287	or die "unable to load regions file\n";
		3288
		3289	for (cf::region::list) {
		3290	$_->{match} = qr/$_->{match}/
		3291	if exists $_->{match};
		3292	}
		3293	}
		3294
		3295	sub reload_facedata {
		3296	load_facedata "$DATADIR/facedata"
		3297	or die "unable to load facedata\n";
		3298	}
		3299
		3300	sub reload_archetypes {
		3301	load_resource_file "$DATADIR/archetypes"
		3302	or die "unable to load archetypes\n";
		3303	#d# NEED to laod twice to resolve forward references
		3304	# this really needs to be done in an extra post-pass
		3305	# (which needs to be synchronous, so solve it differently)
		3306	load_resource_file "$DATADIR/archetypes"
		3307	or die "unable to load archetypes\n";
		3308	}
		3309
		3310	sub reload_treasures {
		3311	load_resource_file "$DATADIR/treasures"
		3312	or die "unable to load treasurelists\n";
		3313	}
		3314
		3315	sub reload_resources {
		3316	warn "reloading resource files...\n";
		3317
		3318	reload_regions;
		3319	reload_facedata;
		3320	#reload_archetypes;#d#
		3321	reload_archetypes;
		3322	reload_treasures;
		3323
		3324	warn "finished reloading resource files\n";
		3325	}
		3326
		3327	sub init {
		3328	reload_resources;
		3329	}
		3330
		3331	sub reload_config {
2091	open my $fh, "<:utf8", cf::confdir . "/config"	3332	open my $fh, "<:utf8", "$CONFDIR/config"
2092	or return;	3333	or return;
2093		3334
2094	local $/;	3335	local $/;
2095	*CFG = YAML::Syck::Load <$fh>;	3336	*CFG = YAML::Load <$fh>;
2096		3337
2097	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3338	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2098		3339
2099	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3340	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2100	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3341	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2110		3351
2111	sub main {	3352	sub main {
2112	# we must not ever block the main coroutine	3353	# we must not ever block the main coroutine
2113	local $Coro::idle = sub {	3354	local $Coro::idle = sub {
2114	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3355	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2115	async { Event::one_event };	3356	(async {
		3357	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3358	EV::loop EV::LOOP_ONESHOT;
		3359	})->prio (Coro::PRIO_MAX);
2116	};	3360	};
2117		3361
2118	cfg_load;	3362	reload_config;
2119	db_load;	3363	db_init;
2120	load_extensions;	3364	load_extensions;
		3365
		3366	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3367	evthread_start;
2121	Event::loop;	3368	EV::loop;
2122	}	3369	}
2123		3370
2124	#############################################################################	3371	#############################################################################
2125	# initialisation	3372	# initialisation and cleanup
2126		3373
		3374	# install some emergency cleanup handlers
		3375	BEGIN {
		3376	our %SIGWATCHER = ();
		3377	for my $signal (qw(INT HUP TERM)) {
		3378	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3379	cf::cleanup "SIG$signal";
		3380	};
		3381	}
		3382	}
		3383
		3384	sub write_runtime {
		3385	my $runtime = "$LOCALDIR/runtime";
		3386
		3387	# first touch the runtime file to show we are still running:
		3388	# the fsync below can take a very very long time.
		3389
		3390	IO::AIO::aio_utime $runtime, undef, undef;
		3391
		3392	my $guard = cf::lock_acquire "write_runtime";
		3393
		3394	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3395	or return;
		3396
		3397	my $value = $cf::RUNTIME + 90 + 10;
		3398	# 10 is the runtime save interval, for a monotonic clock
		3399	# 60 allows for the watchdog to kill the server.
		3400
		3401	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3402	and return;
		3403
		3404	# always fsync - this file is important
		3405	aio_fsync $fh
		3406	and return;
		3407
		3408	# touch it again to show we are up-to-date
		3409	aio_utime $fh, undef, undef;
		3410
		3411	close $fh
		3412	or return;
		3413
		3414	aio_rename "$runtime~", $runtime
		3415	and return;
		3416
		3417	warn "runtime file written.\n";
		3418
		3419	1
		3420	}
		3421
		3422	sub emergency_save() {
		3423	my $freeze_guard = cf::freeze_mainloop;
		3424
		3425	warn "enter emergency perl save\n";
		3426
		3427	cf::sync_job {
		3428	# use a peculiar iteration method to avoid tripping on perl
		3429	# refcount bugs in for. also avoids problems with players
		3430	# and maps saved/destroyed asynchronously.
		3431	warn "begin emergency player save\n";
		3432	for my $login (keys %cf::PLAYER) {
		3433	my $pl = $cf::PLAYER{$login} or next;
		3434	$pl->valid or next;
		3435	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3436	$pl->save;
		3437	}
		3438	warn "end emergency player save\n";
		3439
		3440	warn "begin emergency map save\n";
		3441	for my $path (keys %cf::MAP) {
		3442	my $map = $cf::MAP{$path} or next;
		3443	$map->valid or next;
		3444	$map->save;
		3445	}
		3446	warn "end emergency map save\n";
		3447
		3448	warn "begin emergency database checkpoint\n";
		3449	BDB::db_env_txn_checkpoint $DB_ENV;
		3450	warn "end emergency database checkpoint\n";
		3451	};
		3452
		3453	warn "leave emergency perl save\n";
		3454	}
		3455
		3456	sub post_cleanup {
		3457	my ($make_core) = @_;
		3458
		3459	warn Carp::longmess "post_cleanup backtrace"
		3460	if $make_core;
		3461	}
		3462
2127	sub reload() {	3463	sub do_reload_perl() {
2128	# can/must only be called in main	3464	# can/must only be called in main
2129	if ($Coro::current != $Coro::main) {	3465	if ($Coro::current != $Coro::main) {
2130	warn "can only reload from main coroutine\n";	3466	warn "can only reload from main coroutine";
2131	return;	3467	return;
2132	}	3468	}
2133		3469
2134	warn "reloading...";	3470	warn "reloading...";
2135		3471
2136	my $guard = freeze_mainloop;	3472	warn "entering sync_job";
		3473
		3474	cf::sync_job {
		3475	cf::write_runtime; # external watchdog should not bark
2137	cf::emergency_save;	3476	cf::emergency_save;
		3477	cf::write_runtime; # external watchdog should not bark
2138		3478
2139	eval {	3479	warn "syncing database to disk";
		3480	BDB::db_env_txn_checkpoint $DB_ENV;
		3481
2140	# if anything goes wrong in here, we should simply crash as we already saved	3482	# if anything goes wrong in here, we should simply crash as we already saved
2141		3483
2142	# cancel all watchers	3484	warn "flushing outstanding aio requests";
2143	for (Event::all_watchers) {	3485	for (;;) {
2144	$_->cancel if $_->data & WF_AUTOCANCEL;	3486	BDB::flush;
		3487	IO::AIO::flush;
		3488	Coro::cede_notself;
		3489	last unless IO::AIO::nreqs || BDB::nreqs;
		3490	warn "iterate...";
2145	}	3491	}
2146		3492
		3493	++$RELOAD;
		3494
2147	# cancel all extension coros	3495	warn "cancelling all extension coros";
2148	$_->cancel for values %EXT_CORO;	3496	$_->cancel for values %EXT_CORO;
2149	%EXT_CORO = ();	3497	%EXT_CORO = ();
2150		3498
2151	# unload all extensions	3499	warn "removing commands";
2152	for (@exts) {	3500	%COMMAND = ();
		3501
		3502	warn "removing ext/exti commands";
		3503	%EXTCMD = ();
		3504	%EXTICMD = ();
		3505
		3506	warn "unloading/nuking all extensions";
		3507	for my $pkg (@EXTS) {
2153	warn "unloading <$_>";	3508	warn "... unloading $pkg";
2154	unload_extension $_;	3509
		3510	if (my $cb = $pkg->can ("unload")) {
		3511	eval {
		3512	$cb->($pkg);
		3513	1
		3514	} or warn "$pkg unloaded, but with errors: $@";
2155	}	3515	}
2156		3516
		3517	warn "... nuking $pkg";
		3518	Symbol::delete_package $pkg;
		3519	}
		3520
2157	# unload all modules loaded from $LIBDIR	3521	warn "unloading all perl modules loaded from $LIBDIR";
2158	while (my ($k, $v) = each %INC) {	3522	while (my ($k, $v) = each %INC) {
2159	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3523	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2160		3524
2161	warn "removing <$k>";	3525	warn "... unloading $k";
2162	delete $INC{$k};	3526	delete $INC{$k};
2163		3527
2164	$k =~ s/\.pm$//;	3528	$k =~ s/\.pm$//;
2165	$k =~ s/\//::/g;	3529	$k =~ s/\//::/g;
2166		3530
…		…
2169	}	3533	}
2170		3534
2171	Symbol::delete_package $k;	3535	Symbol::delete_package $k;
2172	}	3536	}
2173		3537
2174	# sync database to disk
2175	cf::db_sync;
2176	IO::AIO::flush;
2177
2178	# get rid of safe::, as good as possible	3538	warn "getting rid of safe::, as good as possible";
2179	Symbol::delete_package "safe::$_"	3539	Symbol::delete_package "safe::$_"
2180	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3540	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2181		3541
2182	# remove register_script_function callbacks
2183	# TODO
2184
2185	# unload cf.pm "a bit"	3542	warn "unloading cf.pm \"a bit\"";
2186	delete $INC{"cf.pm"};	3543	delete $INC{"cf.pm"};
		3544	delete $INC{"cf/pod.pm"};
2187		3545
2188	# don't, removes xs symbols, too,	3546	# don't, removes xs symbols, too,
2189	# and global variables created in xs	3547	# and global variables created in xs
2190	#Symbol::delete_package __PACKAGE__;	3548	#Symbol::delete_package __PACKAGE__;
2191		3549
2192	# reload cf.pm	3550	warn "unload completed, starting to reload now";
		3551
2193	warn "reloading cf.pm";	3552	warn "reloading cf.pm";
2194	require cf;	3553	require cf;
2195	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3554	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2196		3555
2197	# load config and database again	3556	warn "loading config and database again";
2198	cf::cfg_load;	3557	cf::reload_config;
2199	cf::db_load;
2200		3558
2201	# load extensions
2202	warn "load extensions";	3559	warn "loading extensions";
2203	cf::load_extensions;	3560	cf::load_extensions;
2204		3561
2205	# reattach attachments to objects	3562	warn "reattaching attachments to objects/players";
2206	warn "reattach";	3563	_global_reattach; # objects, sockets
2207	_global_reattach;	3564	warn "reattaching attachments to maps";
2208	reattach $_ for values %MAP;	3565	reattach $_ for values %MAP;
		3566	warn "reattaching attachments to players";
		3567	reattach $_ for values %PLAYER;
		3568
		3569	warn "leaving sync_job";
		3570
		3571	1
		3572	} or do {
		3573	warn $@;
		3574	cf::cleanup "error while reloading, exiting.";
2209	};	3575	};
2210		3576
2211	if ($@) {	3577	warn "reloaded";
2212	warn $@;
2213	warn "error while reloading, exiting.";
2214	exit 1;
2215	}
2216
2217	warn "reloaded successfully";
2218	};	3578	};
2219		3579
2220	#############################################################################	3580	our $RELOAD_WATCHER; # used only during reload
2221		3581
2222	unless ($LINK_MAP) {	3582	sub reload_perl() {
2223	$LINK_MAP = cf::map::new;	3583	# doing reload synchronously and two reloads happen back-to-back,
		3584	# coro crashes during coro_state_free->destroy here.
2224		3585
2225	$LINK_MAP->width (41);	3586	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2226	$LINK_MAP->height (41);	3587	do_reload_perl;
2227	$LINK_MAP->alloc;	3588	undef $RELOAD_WATCHER;
2228	$LINK_MAP->path ("{link}");	3589	};
2229	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2230	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2231
2232	# dirty hack because... archetypes are not yet loaded
2233	Event->timer (
2234	after => 10,
2235	cb => sub {
2236	$_[0]->w->cancel;
2237
2238	# provide some exits "home"
2239	my $exit = cf::object::new "exit";
2240
2241	$exit->slaying ($EMERGENCY_POSITION->[0]);
2242	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2243	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2244
2245	$LINK_MAP->insert ($exit->clone, 19, 19);
2246	$LINK_MAP->insert ($exit->clone, 19, 20);
2247	$LINK_MAP->insert ($exit->clone, 19, 21);
2248	$LINK_MAP->insert ($exit->clone, 20, 19);
2249	$LINK_MAP->insert ($exit->clone, 20, 21);
2250	$LINK_MAP->insert ($exit->clone, 21, 19);
2251	$LINK_MAP->insert ($exit->clone, 21, 20);
2252	$LINK_MAP->insert ($exit->clone, 21, 21);
2253
2254	$exit->destroy;
2255	});
2256
2257	$LINK_MAP->{deny_save} = 1;
2258	$LINK_MAP->{deny_reset} = 1;
2259
2260	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2261	}	3590	}
2262
2263	register "<global>", __PACKAGE__;
2264		3591
2265	register_command "reload" => sub {	3592	register_command "reload" => sub {
2266	my ($who, $arg) = @_;	3593	my ($who, $arg) = @_;
2267		3594
2268	if ($who->flag (FLAG_WIZ)) {	3595	if ($who->flag (FLAG_WIZ)) {
2269	$who->message ("start of reload.");
2270	reload;
2271	$who->message ("end of reload.");	3596	$who->message ("reloading server.");
		3597	async {
		3598	$Coro::current->{desc} = "perl_reload";
		3599	reload_perl;
		3600	};
2272	}	3601	}
2273	};	3602	};
2274		3603
2275	unshift @INC, $LIBDIR;	3604	unshift @INC, $LIBDIR;
2276		3605
2277	$TICK_WATCHER = Event->timer (	3606	my $bug_warning = 0;
2278	reentrant => 0,	3607
2279	prio => 0,	3608	our @WAIT_FOR_TICK;
2280	at => $NEXT_TICK || $TICK,	3609	our @WAIT_FOR_TICK_BEGIN;
2281	data => WF_AUTOCANCEL,	3610
2282	cb => sub {	3611	sub wait_for_tick {
		3612	return if tick_inhibit;
		3613	return if $Coro::current == $Coro::main;
		3614
		3615	my $signal = new Coro::Signal;
		3616	push @WAIT_FOR_TICK, $signal;
		3617	$signal->wait;
		3618	}
		3619
		3620	sub wait_for_tick_begin {
		3621	return if tick_inhibit;
		3622	return if $Coro::current == $Coro::main;
		3623
		3624	my $signal = new Coro::Signal;
		3625	push @WAIT_FOR_TICK_BEGIN, $signal;
		3626	$signal->wait;
		3627	}
		3628
		3629	sub tick {
		3630	if ($Coro::current != $Coro::main) {
		3631	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3632	unless ++$bug_warning > 10;
		3633	return;
		3634	}
		3635
2283	cf::server_tick; # one server iteration	3636	cf::server_tick; # one server iteration
2284	$RUNTIME += $TICK;
2285	$NEXT_TICK += $TICK;
2286		3637
2287	# if we are delayed by four ticks or more, skip them all	3638	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2288	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3639	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2289		3640	Coro::async_pool {
2290	$TICK_WATCHER->at ($NEXT_TICK);	3641	$Coro::current->{desc} = "runtime saver";
2291	$TICK_WATCHER->start;
2292	},
2293	);
2294
2295	IO::AIO::max_poll_time $TICK * 0.2;
2296
2297	Event->io (
2298	fd => IO::AIO::poll_fileno,
2299	poll => 'r',
2300	prio => 5,
2301	data => WF_AUTOCANCEL,
2302	cb => \&IO::AIO::poll_cb,
2303	);
2304
2305	Event->timer (
2306	data => WF_AUTOCANCEL,
2307	after => 0,
2308	interval => 10,
2309	cb => sub {
2310	(Coro::unblock_sub {
2311	write_runtime	3642	write_runtime
2312	or warn "ERROR: unable to write runtime file: $!";	3643	or warn "ERROR: unable to write runtime file: $!";
2313	})->();	3644	};
2314	},	3645	}
2315	);	3646
		3647	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3648	$sig->send;
		3649	}
		3650	while (my $sig = shift @WAIT_FOR_TICK) {
		3651	$sig->send;
		3652	}
		3653
		3654	$LOAD = ($NOW - $TICK_START) / $TICK;
		3655	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3656
		3657	if (0) {
		3658	if ($NEXT_TICK) {
		3659	my $jitter = $TICK_START - $NEXT_TICK;
		3660	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3661	warn "jitter $JITTER\n";#d#
		3662	}
		3663	}
		3664	}
		3665
		3666	{
		3667	# configure BDB
		3668
		3669	BDB::min_parallel 8;
		3670	BDB::max_poll_reqs $TICK * 0.1;
		3671	$Coro::BDB::WATCHER->priority (1);
		3672
		3673	unless ($DB_ENV) {
		3674	$DB_ENV = BDB::db_env_create;
		3675	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3676	| BDB::LOG_AUTOREMOVE, 1);
		3677	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3678	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3679
		3680	cf::sync_job {
		3681	eval {
		3682	BDB::db_env_open
		3683	$DB_ENV,
		3684	$BDBDIR,
		3685	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3686	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3687	0666;
		3688
		3689	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3690	};
		3691
		3692	cf::cleanup "db_env_open(db): $@" if $@;
		3693	};
		3694	}
		3695
		3696	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3697	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3698	};
		3699	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3700	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3701	};
		3702	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3703	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3704	};
		3705	}
		3706
		3707	{
		3708	# configure IO::AIO
		3709
		3710	IO::AIO::min_parallel 8;
		3711	IO::AIO::max_poll_time $TICK * 0.1;
		3712	$Coro::AIO::WATCHER->priority (1);
		3713	}
		3714
		3715	my $_log_backtrace;
		3716
		3717	sub _log_backtrace {
		3718	my ($msg, @addr) = @_;
		3719
		3720	$msg =~ s/\n//;
		3721
		3722	# limit the # of concurrent backtraces
		3723	if ($_log_backtrace < 2) {
		3724	++$_log_backtrace;
		3725	async {
		3726	$Coro::current->{desc} = "abt $msg";
		3727
		3728	my @bt = fork_call {
		3729	@addr = map { sprintf "%x", $_ } @addr;
		3730	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3731	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3732	or die "addr2line: $!";
		3733
		3734	my @funcs;
		3735	my @res = <$fh>;
		3736	chomp for @res;
		3737	while (@res) {
		3738	my ($func, $line) = splice @res, 0, 2, ();
		3739	push @funcs, "[$func] $line";
		3740	}
		3741
		3742	@funcs
		3743	};
		3744
		3745	LOG llevInfo, "[ABT] $msg\n";
		3746	LOG llevInfo, "[ABT] $_\n" for @bt;
		3747	--$_log_backtrace;
		3748	};
		3749	} else {
		3750	LOG llevInfo, "[ABT] $msg\n";
		3751	LOG llevInfo, "[ABT] [suppressed]\n";
		3752	}
		3753	}
		3754
		3755	# load additional modules
		3756	use cf::pod;
2316		3757
2317	END { cf::emergency_save }	3758	END { cf::emergency_save }
2318		3759
2319	1	3760	1
2320		3761

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