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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.424 by root, Sun Apr 20 05:24:55 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 3.2;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro 3.3 ();	36	use Coro 4.50 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::EV;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
18	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
19		47
		48	use JSON::XS 2.01 ();
		49	use BDB ();
		50	use Data::Dumper;
20	use Digest::MD5;	51	use Digest::MD5;
21	use Fcntl;	52	use Fcntl;
		53	use YAML ();
22	use IO::AIO 2.31 ();	54	use IO::AIO 2.51 ();
23	use YAML::Syck ();
24	use Time::HiRes;	55	use Time::HiRes;
		56	use Compress::LZF;
		57	use Digest::MD5 ();
25		58
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	59	# configure various modules to our taste
		60	#
		61	$Storable::canonical = 1; # reduce rsync transfers
		62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;
30
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		66
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		68
35	our %COMMAND = ();	69	our %COMMAND = ();
36	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
		71
		72	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
		75	our %EXT_CORO = (); # coroutines bound to extensions
		76	our %EXT_MAP = (); # pluggable maps
38		77
		78	our $RELOAD; # number of reloads so far
39	our @EVENT;	79	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		80
42	our $TICK = MAX_TIME * 1e-6;	81	our $CONFDIR = confdir;
		82	our $DATADIR = datadir;
		83	our $LIBDIR = "$DATADIR/ext";
		84	our $PODDIR = "$DATADIR/pod";
		85	our $MAPDIR = "$DATADIR/" . mapdir;
		86	our $LOCALDIR = localdir;
		87	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		88	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		89	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		90	our $RANDOMDIR = "$LOCALDIR/random";
		91	our $BDBDIR = "$LOCALDIR/db";
		92	our %RESOURCE;
		93
		94	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	97	our $NEXT_TICK;
45	our $NOW;	98	our $USE_FSYNC = 1; # use fsync to write maps - default off
		99
		100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
		104	our $DB_ENV;
46		105
47	our %CFG;	106	our %CFG;
48		107
49	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
51		111
52	our %MAP; # all maps	112	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	113	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	114	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	115
56	our %EXT_CORO;	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, "cfperl: $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
182	JSON::Syck::Dump $_[0]
183	}
184		297
185	=item my $guard = cf::guard { BLOCK }	298	sub encode_json($) { $json_coder->encode ($_[0]) }
186		299	sub decode_json($) { $json_coder->decode ($_[0]) }
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206		300
207	=item cf::lock_wait $string	301	=item cf::lock_wait $string
208		302
209	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
210		304
211	=item my $lock = cf::lock_acquire $string	305	=item my $lock = cf::lock_acquire $string
212		306
213	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
214	a 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,
215	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
216	returned.	310	returned.
217		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
218	Lock names should begin with a unique identifier (for example, find_map	315	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	316	uses map_find and cf::map::load uses map_load).
		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
220		321
221	=cut	322	=cut
222		323
223	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
224		326
225	sub lock_wait($) {	327	sub lock_wait($) {
226	my ($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#
227		334
228	# wait for lock, if any	335	# wait for lock, if any
229	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;	338	Coro::schedule;
…		…
237		344
238	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
239	lock_wait $key;	346	lock_wait $key;
240		347
241	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
242		350
243	cf::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
244	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
246	}	355	}
247	}	356	}
248		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
		364	sub freeze_mainloop {
		365	tick_inhibit_inc;
		366
		367	Coro::guard \&tick_inhibit_dec;
		368	}
		369
		370	=item cf::periodic $interval, $cb
		371
		372	Like EV::periodic, but randomly selects a starting point so that the actions
		373	get spread over timer.
		374
		375	=cut
		376
		377	sub periodic($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
		428	}
		429	};
		430
		431	sub get_slot($;$$) {
		432	return if tick_inhibit || $Coro::current == $Coro::main;
		433
		434	my ($time, $pri, $name) = @_;
		435
		436	$time = $TICK * .6 if $time > $TICK * .6;
		437	my $sig = new Coro::Signal;
		438
		439	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		440	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		441	$SLOT_QUEUE->ready;
		442	$sig->wait;
		443	}
		444
249	=item cf::async { BLOCK }	445	=item cf::async { BLOCK }
250		446
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	447	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	448	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		449	thing you are allowed to do is call C<prio> on it.
253		450
254	=cut	451	=cut
255		452
256	sub async(&) {	453	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		454
265	=item cf::sync_job { BLOCK }	455	=item cf::sync_job { BLOCK }
266		456
267	The design of crossfire+ requires that the main coro ($Coro::main) is	457	The design of Deliantra requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	458	is always able to handle events or runnable, as Deliantra is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	459	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		460	acceptable.
270		461
271	If it must be done, put the blocking parts into C<sync_job>. This will run	462	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	463	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	464	server will be frozen during this time, so the block should either finish
274	fast or be very important.	465	fast or be very important.
…		…
277		468
278	sub sync_job(&) {	469	sub sync_job(&) {
279	my ($job) = @_;	470	my ($job) = @_;
280		471
281	if ($Coro::current == $Coro::main) {	472	if ($Coro::current == $Coro::main) {
		473	my $time = EV::time;
		474
282	# this is the main coro, too bad, we have to block	475	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	476	# till the operation succeeds, freezing the server :/
284		477
285	# TODO: use suspend/resume instead	478	LOG llevError, Carp::longmess "sync job";#d#
286	# (but this is cancel-safe)	479
287	local $FREEZE = 1;	480	my $freeze_guard = freeze_mainloop;
288		481
289	my $busy = 1;	482	my $busy = 1;
290	my @res;	483	my @res;
291		484
292	(Coro::async {	485	(async {
		486	$Coro::current->desc ("sync job coro");
293	@res = eval { $job->() };	487	@res = eval { $job->() };
294	warn $@ if $@;	488	warn $@ if $@;
295	undef $busy;	489	undef $busy;
296	})->prio (Coro::PRIO_MAX);	490	})->prio (Coro::PRIO_MAX);
297		491
298	while ($busy) {	492	while ($busy) {
		493	if (Coro::nready) {
299	Coro::cede_notself;	494	Coro::cede_notself;
300	Event::one_event unless Coro::nready;	495	} else {
		496	EV::loop EV::LOOP_ONESHOT;
301	}	497	}
		498	}
		499
		500	my $time = EV::time - $time;
		501
		502	$TICK_START += $time; # do not account sync jobs to server load
302		503
303	wantarray ? @res : $res[0]	504	wantarray ? @res : $res[0]
304	} else {	505	} else {
305	# we are in another coroutine, how wonderful, everything just works	506	# we are in another coroutine, how wonderful, everything just works
306		507
307	$job->()	508	$job->()
308	}	509	}
309	}	510	}
310		511
311	=item $coro = cf::coro { BLOCK }	512	=item $coro = cf::async_ext { BLOCK }
312		513
313	Creates and returns a new coro. This coro is automcatially being canceled	514	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	515	extension calling this is being unloaded.
315		516
316	=cut	517	=cut
317		518
318	sub coro(&) {	519	sub async_ext(&) {
319	my $cb = shift;	520	my $cb = shift;
320		521
321	my $coro = &cf::async ($cb);	522	my $coro = &Coro::async ($cb);
322		523
323	$coro->on_destroy (sub {	524	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	525	delete $EXT_CORO{$coro+0};
325	});	526	});
326	$EXT_CORO{$coro+0} = $coro;	527	$EXT_CORO{$coro+0} = $coro;
327		528
328	$coro	529	$coro
329	}	530	}
330		531
331	sub write_runtime {	532	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		533
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	534	Executes the given code block with the given arguments in a seperate
335	or return;	535	process, returning the results. Everything must be serialisable with
		536	Coro::Storable. May, of course, block. Note that the executed sub may
		537	never block itself or use any form of event handling.
336		538
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	539	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		540
341	aio_fsync $fh	541	sub fork_call(&@) {
342	and return;	542	my ($cb, @args) = @_;
343		543
344	close $fh	544	# we seemingly have to make a local copy of the whole thing,
345	or return;	545	# otherwise perl prematurely frees the stuff :/
		546	# TODO: investigate and fix (likely this will be rather laborious)
346		547
347	aio_rename "$runtime~", $runtime	548	my @res = Coro::Util::fork_eval {
348	and return;	549	reset_signals;
		550	&$cb
		551	}, @args;
349		552
		553	wantarray ? @res : $res[-1]
		554	}
		555
		556	=item $coin = coin_from_name $name
		557
		558	=cut
		559
		560	our %coin_alias = (
		561	"silver" => "silvercoin",
		562	"silvercoin" => "silvercoin",
		563	"silvercoins" => "silvercoin",
		564	"gold" => "goldcoin",
		565	"goldcoin" => "goldcoin",
		566	"goldcoins" => "goldcoin",
		567	"platinum" => "platinacoin",
		568	"platinumcoin" => "platinacoin",
		569	"platinumcoins" => "platinacoin",
		570	"platina" => "platinacoin",
		571	"platinacoin" => "platinacoin",
		572	"platinacoins" => "platinacoin",
		573	"royalty" => "royalty",
		574	"royalties" => "royalty",
		575	);
		576
		577	sub coin_from_name($) {
		578	$coin_alias{$_[0]}
		579	? cf::arch::find $coin_alias{$_[0]}
		580	: undef
		581	}
		582
		583	=item $value = cf::db_get $family => $key
		584
		585	Returns a single value from the environment database.
		586
		587	=item cf::db_put $family => $key => $value
		588
		589	Stores the given C<$value> in the family. It can currently store binary
		590	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		591
		592	=item $db = cf::db_table "name"
		593
		594	Create and/or open a new database table. The string must not be "db" and must be unique
		595	within each server.
		596
		597	=cut
		598
		599	sub db_table($) {
		600	my ($name) = @_;
		601	my $db = BDB::db_create $DB_ENV;
		602
		603	eval {
		604	$db->set_flags (BDB::CHKSUM);
		605
		606	utf8::encode $name;
		607	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		608	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		609	cf::cleanup "db_open(db): $!" if $!;
		610	};
		611	cf::cleanup "db_open(db): $@" if $@;
		612
		613	$db
		614	}
		615
		616	our $DB;
		617
		618	sub db_init {
		619	cf::sync_job {
		620	$DB ||= db_table "db";
		621	};
		622	}
		623
		624	sub db_get($$) {
		625	my $key = "$_[0]/$_[1]";
		626
		627	cf::sync_job {
		628	BDB::db_get $DB, undef, $key, my $data;
		629
		630	$! ? ()
		631	: $data
350	1	632	}
		633	}
		634
		635	sub db_put($$$) {
		636	BDB::dbreq_pri 4;
		637	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		638	}
		639
		640	=item cf::cache $id => [$paths...], $processversion => $process
		641
		642	Generic caching function that returns the value of the resource $id,
		643	caching and regenerating as required.
		644
		645	This function can block.
		646
		647	=cut
		648
		649	sub cache {
		650	my ($id, $src, $processversion, $process) = @_;
		651
		652	my $meta =
		653	join "\x00",
		654	$processversion,
		655	map {
		656	aio_stat $_
		657	and Carp::croak "$_: $!";
		658
		659	($_, (stat _)[7,9])
		660	} @$src;
		661
		662	my $dbmeta = db_get cache => "$id/meta";
		663	if ($dbmeta ne $meta) {
		664	# changed, we may need to process
		665
		666	my @data;
		667	my $md5;
		668
		669	for (0 .. $#$src) {
		670	0 <= aio_load $src->[$_], $data[$_]
		671	or Carp::croak "$src->[$_]: $!";
		672	}
		673
		674	# if processing is expensive, check
		675	# checksum first
		676	if (1) {
		677	$md5 =
		678	join "\x00",
		679	$processversion,
		680	map {
		681	cf::cede_to_tick;
		682	($src->[$_], Digest::MD5::md5_hex $data[$_])
		683	} 0.. $#$src;
		684
		685
		686	my $dbmd5 = db_get cache => "$id/md5";
		687	if ($dbmd5 eq $md5) {
		688	db_put cache => "$id/meta", $meta;
		689
		690	return db_get cache => "$id/data";
		691	}
		692	}
		693
		694	my $t1 = Time::HiRes::time;
		695	my $data = $process->(\@data);
		696	my $t2 = Time::HiRes::time;
		697
		698	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		699
		700	db_put cache => "$id/data", $data;
		701	db_put cache => "$id/md5" , $md5;
		702	db_put cache => "$id/meta", $meta;
		703
		704	return $data;
		705	}
		706
		707	db_get cache => "$id/data"
		708	}
		709
		710	=item cf::datalog type => key => value, ...
		711
		712	Log a datalog packet of the given type with the given key-value pairs.
		713
		714	=cut
		715
		716	sub datalog($@) {
		717	my ($type, %kv) = @_;
		718	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351	}	719	}
352		720
353	=back	721	=back
354		722
355	=cut	723	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		724
477	#############################################################################	725	#############################################################################
478		726
479	=head2 ATTACHABLE OBJECTS	727	=head2 ATTACHABLE OBJECTS
480		728
…		…
482	attach callbacks/event handlers (a collection of which is called an "attachment")	730	attach callbacks/event handlers (a collection of which is called an "attachment")
483	to it. All such attachable objects support the following methods.	731	to it. All such attachable objects support the following methods.
484		732
485	In the following description, CLASS can be any of C<global>, C<object>	733	In the following description, CLASS can be any of C<global>, C<object>
486	C<player>, C<client> or C<map> (i.e. the attachable objects in	734	C<player>, C<client> or C<map> (i.e. the attachable objects in
487	crossfire+).	735	Deliantra).
488		736
489	=over 4	737	=over 4
490		738
491	=item $attachable->attach ($attachment, key => $value...)	739	=item $attachable->attach ($attachment, key => $value...)
492		740
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	854	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	855	our @CB_MAP = ();
608		856
609	my %attachment;	857	my %attachment;
610		858
		859	sub cf::attachable::thawer_merge {
		860	# simply override everything except _meta
		861	local $_[0]{_meta};
		862	%{$_[0]} = %{$_[1]};
		863	}
		864
611	sub _attach_cb($$$$) {	865	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	866	my ($registry, $event, $prio, $cb) = @_;
613		867
614	use sort 'stable';	868	use sort 'stable';
615		869
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	903	$registry = $CB_TYPE[$object_type] ||= [];
650		904
651	} elsif ($type eq "subtype") {	905	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	906	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	907	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	908	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		909
656	} elsif ($type eq "package") {	910	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	911	my $pkg = shift @arg;
658		912
659	while (my ($name, $id) = each %cb_id) {	913	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	942	_attach $registry, $klass, @attach;
689	}	943	}
690		944
691	$obj->{$name} = \%arg;	945	$obj->{$name} = \%arg;
692	} else {	946	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	947	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	948	}
695		949
696	$obj->{_attachment}{$name} = undef;	950	$obj->{_attachment}{$name} = undef;
697	}	951	}
698		952
…		…
700	if (ref $_[0]) {	954	if (ref $_[0]) {
701	_object_attach @_;	955	_object_attach @_;
702	} else {	956	} else {
703	_attach shift->_attach_registry, @_;	957	_attach shift->_attach_registry, @_;
704	}	958	}
		959	_recalc_want;
705	};	960	};
706		961
707	# all those should be optimised	962	# all those should be optimised
708	sub cf::attachable::detach {	963	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	964	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	967	delete $obj->{_attachment}{$name};
713	reattach ($obj);	968	reattach ($obj);
714	} else {	969	} else {
715	Carp::croak "cannot, currently, detach class attachments";	970	Carp::croak "cannot, currently, detach class attachments";
716	}	971	}
		972	_recalc_want;
717	};	973	};
718		974
719	sub cf::attachable::attached {	975	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	976	my ($obj, $name) = @_;
721		977
…		…
736	";	992	";
737	die if $@;	993	die if $@;
738	}	994	}
739		995
740	our $override;	996	our $override;
741	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	997	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
742		998
743	sub override {	999	sub override {
744	$override = 1;	1000	$override = 1;
745	@invoke_results = ();	1001	@INVOKE_RESULTS = (@_);
746	}	1002	}
747		1003
748	sub do_invoke {	1004	sub do_invoke {
749	my $event = shift;	1005	my $event = shift;
750	my $callbacks = shift;	1006	my $callbacks = shift;
751		1007
752	@invoke_results = ();	1008	@INVOKE_RESULTS = ();
753		1009
754	local $override;	1010	local $override;
755		1011
756	for (@$callbacks) {	1012	for (@$callbacks) {
757	eval { &{$_->[1]} };	1013	eval { &{$_->[1]} };
…		…
766	}	1022	}
767		1023
768	0	1024	0
769	}	1025	}
770		1026
771	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
772		1028
773	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1029	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
774		1030
775	Generate an object-specific event with the given arguments.	1031	Generate an object-specific event with the given arguments.
776		1032
777	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1033	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
778	removed in future versions), and there is no public API to access override	1034	removed in future versions), and there is no public API to access override
779	results (if you must, access C<@cf::invoke_results> directly).	1035	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		1036
781	=back	1037	=back
782		1038
783	=cut	1039	=cut
784		1040
785	#############################################################################	1041	#############################################################################
786	# object support	1042	# object support
		1043
		1044	sub _object_equal($$);
		1045	sub _object_equal($$) {
		1046	my ($a, $b) = @_;
		1047
		1048	return 0 unless (ref $a) eq (ref $b);
		1049
		1050	if ("HASH" eq ref $a) {
		1051	my @ka = keys %$a;
		1052	my @kb = keys %$b;
		1053
		1054	return 0 if @ka != @kb;
		1055
		1056	for (0 .. $#ka) {
		1057	return 0 unless $ka[$_] eq $kb[$_];
		1058	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1059	}
		1060
		1061	} elsif ("ARRAY" eq ref $a) {
		1062
		1063	return 0 if @$a != @$b;
		1064
		1065	for (0 .. $#$a) {
		1066	return 0 unless _object_equal $a->[$_], $b->[$_];
		1067	}
		1068
		1069	} elsif ($a ne $b) {
		1070	return 0;
		1071	}
		1072
		1073	1
		1074	}
		1075
		1076	our $SLOW_MERGES;#d#
		1077	sub _can_merge {
		1078	my ($ob1, $ob2) = @_;
		1079
		1080	++$SLOW_MERGES;#d#
		1081
		1082	# we do the slow way here
		1083	return _object_equal $ob1, $ob2
		1084	}
787		1085
788	sub reattach {	1086	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	1087	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	1088	my ($obj) = @_;
		1089
		1090	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		1091
792	my $registry = $obj->registry;	1092	my $registry = $obj->registry;
793		1093
794	@$registry = ();	1094	@$registry = ();
795		1095
…		…
810	cf::attachable->attach (	1110	cf::attachable->attach (
811	prio => -1000000,	1111	prio => -1000000,
812	on_instantiate => sub {	1112	on_instantiate => sub {
813	my ($obj, $data) = @_;	1113	my ($obj, $data) = @_;
814		1114
815	$data = from_json $data;	1115	$data = decode_json $data;
816		1116
817	for (@$data) {	1117	for (@$data) {
818	my ($name, $args) = @$_;	1118	my ($name, $args) = @$_;
819		1119
820	$obj->attach ($name, %{$args || {} });	1120	$obj->attach ($name, %{$args || {} });
…		…
836	sub object_freezer_save {	1136	sub object_freezer_save {
837	my ($filename, $rdata, $objs) = @_;	1137	my ($filename, $rdata, $objs) = @_;
838		1138
839	sync_job {	1139	sync_job {
840	if (length $$rdata) {	1140	if (length $$rdata) {
		1141	utf8::decode (my $decname = $filename);
841	warn sprintf "saving %s (%d,%d)\n",	1142	warn sprintf "saving %s (%d,%d)\n",
842	$filename, length $$rdata, scalar @$objs;	1143	$decname, length $$rdata, scalar @$objs;
843		1144
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1145	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1146	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1147	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	1148	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	1149	close $fh;
849		1150
850	if (@$objs) {	1151	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1152	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1153	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1154	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	1155	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	1156	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	1157	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1158	aio_rename "$filename.pst~", "$filename.pst";
858	}	1159	}
859	} else {	1160	} else {
860	aio_unlink "$filename.pst";	1161	aio_unlink "$filename.pst";
…		…
866	}	1167	}
867	} else {	1168	} else {
868	aio_unlink $filename;	1169	aio_unlink $filename;
869	aio_unlink "$filename.pst";	1170	aio_unlink "$filename.pst";
870	}	1171	}
871	}	1172	};
872	}	1173	}
873		1174
874	sub object_freezer_as_string {	1175	sub object_freezer_as_string {
875	my ($rdata, $objs) = @_;	1176	my ($rdata, $objs) = @_;
876		1177
…		…
888	or return;	1189	or return;
889		1190
890	unless (aio_stat "$filename.pst") {	1191	unless (aio_stat "$filename.pst") {
891	(aio_load "$filename.pst", $av) >= 0	1192	(aio_load "$filename.pst", $av) >= 0
892	or return;	1193	or return;
		1194
893	$av = eval { (Storable::thaw $av)->{objs} };	1195	my $st = eval { Coro::Storable::thaw $av };
		1196	$av = $st->{objs};
894	}	1197	}
895		1198
		1199	utf8::decode (my $decname = $filename);
896	warn sprintf "loading %s (%d)\n",	1200	warn sprintf "loading %s (%d,%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1201	$decname, length $data, scalar @{$av || []};
		1202
898	return ($data, $av);	1203	($data, $av)
899	}	1204	}
		1205
		1206	=head2 COMMAND CALLBACKS
		1207
		1208	=over 4
		1209
		1210	=cut
900		1211
901	#############################################################################	1212	#############################################################################
902	# command handling &c	1213	# command handling &c
903		1214
904	=item cf::register_command $name => \&callback($ob,$args);	1215	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1228	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1229	}
919		1230
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1231	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1232
922	Register a callbackf ro execution when the client sends an extcmd packet.	1233	Register a callback for execution when the client sends an (synchronous)
		1234	extcmd packet. Ext commands will be processed in the order they are
		1235	received by the server, like other user commands. The first argument is
		1236	the logged-in player. Ext commands can only be processed after a player
		1237	has logged in successfully.
923		1238
924	If the callback returns something, it is sent back as if reply was being	1239	If the callback returns something, it is sent back as if reply was being
925	called.	1240	called.
926		1241
		1242	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1243
		1244	Register a callback for execution when the client sends an (asynchronous)
		1245	exticmd packet. Exti commands are processed by the server as soon as they
		1246	are received, i.e. out of order w.r.t. other commands. The first argument
		1247	is a client socket. Exti commands can be received anytime, even before
		1248	log-in.
		1249
		1250	If the callback returns something, it is sent back as if reply was being
		1251	called.
		1252
927	=cut	1253	=cut
928		1254
929	sub register_extcmd {	1255	sub register_extcmd {
930	my ($name, $cb) = @_;	1256	my ($name, $cb) = @_;
931		1257
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1258	$EXTCMD{$name} = $cb;
		1259	}
		1260
		1261	sub register_exticmd {
		1262	my ($name, $cb) = @_;
		1263
		1264	$EXTICMD{$name} = $cb;
936	}	1265	}
937		1266
938	cf::player->attach (	1267	cf::player->attach (
939	on_command => sub {	1268	on_command => sub {
940	my ($pl, $name, $params) = @_;	1269	my ($pl, $name, $params) = @_;
…		…
949	cf::override;	1278	cf::override;
950	},	1279	},
951	on_extcmd => sub {	1280	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1281	my ($pl, $buf) = @_;
953		1282
954	my $msg = eval { from_json $buf };	1283	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1284
956	if (ref $msg) {	1285	if (ref $msg) {
		1286	my ($type, $reply, @payload) =
		1287	"ARRAY" eq ref $msg
		1288	? @$msg
		1289	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1290
		1291	my @reply;
		1292
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1293	if (my $cb = $EXTCMD{$type}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1294	@reply = $cb->($pl, @payload);
959	$pl->ext_reply ($msg->{msgid}, %reply);
960	}
961	}	1295	}
		1296
		1297	$pl->ext_reply ($reply, @reply)
		1298	if $reply;
		1299
962	} else {	1300	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1301	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964	}	1302	}
965		1303
966	cf::override;	1304	cf::override;
967	},	1305	},
968	);	1306	);
969		1307
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	1308	sub load_extensions {
		1309	cf::sync_job {
		1310	my %todo;
		1311
		1312	for my $path (<$LIBDIR/*.ext>) {
		1313	next unless -r $path;
		1314
		1315	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1316	my $base = $1;
		1317	my $pkg = $1;
		1318	$pkg =~ s/[^[:word:]]/_/g;
		1319	$pkg = "ext::$pkg";
		1320
		1321	open my $fh, "<:utf8", $path
		1322	or die "$path: $!";
		1323
		1324	my $source = do { local $/; <$fh> };
		1325
		1326	my %ext = (
		1327	path => $path,
		1328	base => $base,
		1329	pkg => $pkg,
		1330	);
		1331
		1332	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1333	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1334
		1335	$ext{source} =
		1336	"package $pkg; use strict; use utf8;\n"
		1337	. "#line 1 \"$path\"\n{\n"
		1338	. $source
		1339	. "\n};\n1";
		1340
		1341	$todo{$base} = \%ext;
		1342	}
		1343
		1344	my %done;
		1345	while (%todo) {
		1346	my $progress;
		1347
		1348	while (my ($k, $v) = each %todo) {
		1349	for (split /,\s*/, $v->{meta}{depends}) {
		1350	goto skip
		1351	unless exists $done{$_};
		1352	}
		1353
		1354	warn "... loading '$k' into '$v->{pkg}'\n";
		1355
		1356	unless (eval $v->{source}) {
		1357	my $msg = $@ ? "$v->{path}: $@\n"
		1358	: "$v->{base}: extension inactive.\n";
		1359
		1360	if (exists $v->{meta}{mandatory}) {
		1361	warn $msg;
		1362	cf::cleanup "mandatory extension failed to load, exiting.";
		1363	}
		1364
		1365	warn $msg;
		1366	}
		1367
		1368	$done{$k} = delete $todo{$k};
		1369	push @EXTS, $v->{pkg};
		1370	$progress = 1;
		1371	}
		1372
		1373	skip:
		1374	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1375	unless $progress;
		1376	}
		1377	};
		1378	}
		1379
		1380	#############################################################################
		1381
		1382	=back
		1383
		1384	=head2 CORE EXTENSIONS
		1385
		1386	Functions and methods that extend core crossfire objects.
		1387
		1388	=cut
		1389
		1390	package cf::player;
		1391
		1392	use Coro::AIO;
		1393
		1394	=head3 cf::player
		1395
		1396	=over 4
		1397
		1398	=item cf::player::num_playing
		1399
		1400	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1401
		1402	=cut
		1403
		1404	sub num_playing {
		1405	scalar grep
		1406	$_->ob->map
		1407	&& !$_->hidden
		1408	&& !$_->ob->flag (cf::FLAG_WIZ),
		1409	cf::player::list
		1410	}
		1411
		1412	=item cf::player::find $login
		1413
		1414	Returns the given player object, loading it if necessary (might block).
		1415
		1416	=cut
		1417
		1418	sub playerdir($) {
		1419	"$PLAYERDIR/"
		1420	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1421	}
		1422
		1423	sub path($) {
		1424	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1425
		1426	(playerdir $login) . "/playerdata"
		1427	}
		1428
		1429	sub find_active($) {
		1430	$cf::PLAYER{$_[0]}
		1431	and $cf::PLAYER{$_[0]}->active
		1432	and $cf::PLAYER{$_[0]}
		1433	}
		1434
		1435	sub exists($) {
		1436	my ($login) = @_;
		1437
		1438	$cf::PLAYER{$login}
		1439	or cf::sync_job { !aio_stat path $login }
		1440	}
		1441
		1442	sub find($) {
		1443	return $cf::PLAYER{$_[0]} || do {
		1444	my $login = $_[0];
		1445
		1446	my $guard = cf::lock_acquire "user_find:$login";
		1447
		1448	$cf::PLAYER{$_[0]} || do {
		1449	# rename old playerfiles to new ones
		1450	#TODO: remove when no longer required
		1451	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1452	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1453	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1454	aio_unlink +(playerdir $login) . "/$login.pl";
		1455
		1456	my $f = new_from_file cf::object::thawer path $login
		1457	or return;
		1458
		1459	my $pl = cf::player::load_pl $f
		1460	or return;
		1461	local $cf::PLAYER_LOADING{$login} = $pl;
		1462	$f->resolve_delayed_derefs;
		1463	$cf::PLAYER{$login} = $pl
		1464	}
		1465	}
		1466	}
		1467
		1468	sub save($) {
		1469	my ($pl) = @_;
		1470
		1471	return if $pl->{deny_save};
		1472
		1473	my $path = path $pl;
		1474	my $guard = cf::lock_acquire "user_save:$path";
		1475
		1476	return if $pl->{deny_save};
		1477
		1478	aio_mkdir playerdir $pl, 0770;
		1479	$pl->{last_save} = $cf::RUNTIME;
		1480
		1481	cf::get_slot 0.01;
		1482
		1483	$pl->save_pl ($path);
		1484	cf::cede_to_tick;
		1485	}
		1486
		1487	sub new($) {
		1488	my ($login) = @_;
		1489
		1490	my $self = create;
		1491
		1492	$self->ob->name ($login);
		1493	$self->{deny_save} = 1;
		1494
		1495	$cf::PLAYER{$login} = $self;
		1496
		1497	$self
		1498	}
		1499
		1500	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1501
		1502	=cut
		1503
		1504	sub send_msg {
		1505	my $ns = shift->ns
		1506	or return;
		1507	$ns->send_msg (@_);
		1508	}
		1509
		1510	=item $pl->quit_character
		1511
		1512	Nukes the player without looking back. If logged in, the connection will
		1513	be destroyed. May block for a long time.
		1514
		1515	=cut
		1516
		1517	sub quit_character {
		1518	my ($pl) = @_;
		1519
		1520	my $name = $pl->ob->name;
		1521
		1522	$pl->{deny_save} = 1;
		1523	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1524
		1525	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1526	$pl->deactivate;
		1527	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1528	$pl->ns->destroy if $pl->ns;
		1529
		1530	my $path = playerdir $pl;
		1531	my $temp = "$path~$cf::RUNTIME~deleting~";
		1532	aio_rename $path, $temp;
		1533	delete $cf::PLAYER{$pl->ob->name};
		1534	$pl->destroy;
		1535
		1536	my $prefix = qr<^~\Q$name\E/>;
		1537
		1538	# nuke player maps
		1539	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1540
		1541	IO::AIO::aio_rmtree $temp;
		1542	}
		1543
		1544	=item $pl->kick
		1545
		1546	Kicks a player out of the game. This destroys the connection.
		1547
		1548	=cut
		1549
		1550	sub kick {
		1551	my ($pl, $kicker) = @_;
		1552
		1553	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1554	$pl->killer ("kicked");
		1555	$pl->ns->destroy;
		1556	}
		1557
		1558	=item cf::player::list_logins
		1559
		1560	Returns am arrayref of all valid playernames in the system, can take a
		1561	while and may block, so not sync_job-capable, ever.
		1562
		1563	=cut
		1564
		1565	sub list_logins {
		1566	my $dirs = aio_readdir $PLAYERDIR
		1567	or return [];
		1568
		1569	my @logins;
		1570
		1571	for my $login (@$dirs) {
		1572	my $path = path $login;
		1573
		1574	# a .pst is a dead give-away for a valid player
		1575	unless (-e "$path.pst") {
		1576	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1577	aio_read $fh, 0, 512, my $buf, 0 or next;
		1578	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1579	}
		1580
		1581	utf8::decode $login;
		1582	push @logins, $login;
		1583	}
		1584
		1585	\@logins
		1586	}
		1587
		1588	=item $player->maps
		1589
		1590	Returns an arrayref of map paths that are private for this
		1591	player. May block.
		1592
		1593	=cut
		1594
		1595	sub maps($) {
		1596	my ($pl) = @_;
		1597
		1598	$pl = ref $pl ? $pl->ob->name : $pl;
		1599
		1600	my $files = aio_readdir playerdir $pl
		1601	or return;
		1602
		1603	my @paths;
		1604
		1605	for (@$files) {
		1606	utf8::decode $_;
		1607	next if /\.(?:pl|pst)$/;
		1608	next unless /^$PATH_SEP/o;
		1609
		1610	push @paths, cf::map::normalise "~$pl/$_";
		1611	}
		1612
		1613	\@paths
		1614	}
		1615
		1616	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1617
		1618	Expand crossfire pod fragments into protocol xml.
		1619
		1620	=cut
		1621
		1622	use re 'eval';
		1623
		1624	my $group;
		1625	my $interior; $interior = qr{
		1626	# match a pod interior sequence sans C<< >>
		1627	(?:
		1628	\ (.*?)\ (?{ $group = $^N })
		1629	| < (??{$interior}) >
		1630	)
		1631	}x;
		1632
		1633	sub expand_cfpod {
		1634	my ($self, $pod) = @_;
		1635
		1636	my $xml;
		1637
		1638	while () {
		1639	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1640	$group = $1;
		1641
		1642	$group =~ s/&/&amp;/g;
		1643	$group =~ s/</&lt;/g;
		1644
		1645	$xml .= $group;
		1646	} elsif ($pod =~ m%\G
		1647	([BCGHITU])
		1648	<
		1649	(?:
		1650	([^<>]*) (?{ $group = $^N })
		1651	| < $interior >
		1652	)
		1653	>
		1654	%gcsx
		1655	) {
		1656	my ($code, $data) = ($1, $group);
		1657
		1658	if ($code eq "B") {
		1659	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1660	} elsif ($code eq "I") {
		1661	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1662	} elsif ($code eq "U") {
		1663	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1664	} elsif ($code eq "C") {
		1665	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1666	} elsif ($code eq "T") {
		1667	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1668	} elsif ($code eq "G") {
		1669	my ($male, $female) = split /\|/, $data;
		1670	$data = $self->gender ? $female : $male;
		1671	$xml .= expand_cfpod ($self, $data);
		1672	} elsif ($code eq "H") {
		1673	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1674	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1675	"")
		1676	[$self->{hintmode}];
		1677	} else {
		1678	$xml .= "error processing '$code($data)' directive";
		1679	}
		1680	} else {
		1681	if ($pod =~ /\G(.+)/) {
		1682	warn "parse error while expanding $pod (at $1)";
		1683	}
		1684	last;
		1685	}
		1686	}
		1687
		1688	for ($xml) {
		1689	# create single paragraphs (very hackish)
		1690	s/(?<=\S)\n(?=\w)/ /g;
		1691
		1692	# compress some whitespace
		1693	s/\s+\n/\n/g; # ws line-ends
		1694	s/\n\n+/\n/g; # double lines
		1695	s/^\n+//; # beginning lines
		1696	s/\n+$//; # ending lines
		1697	}
		1698
		1699	$xml
		1700	}
		1701
		1702	no re 'eval';
		1703
		1704	sub hintmode {
		1705	$_[0]{hintmode} = $_[1] if @_ > 1;
		1706	$_[0]{hintmode}
		1707	}
		1708
		1709	=item $player->ext_reply ($msgid, @msg)
		1710
		1711	Sends an ext reply to the player.
		1712
		1713	=cut
		1714
		1715	sub ext_reply($$@) {
		1716	my ($self, $id, @msg) = @_;
		1717
		1718	$self->ns->ext_reply ($id, @msg)
		1719	}
		1720
		1721	=item $player->ext_msg ($type, @msg)
		1722
		1723	Sends an ext event to the client.
		1724
		1725	=cut
		1726
		1727	sub ext_msg($$@) {
		1728	my ($self, $type, @msg) = @_;
		1729
		1730	$self->ns->ext_msg ($type, @msg);
		1731	}
		1732
		1733	=head3 cf::region
		1734
		1735	=over 4
		1736
		1737	=cut
		1738
		1739	package cf::region;
		1740
		1741	=item cf::region::find_by_path $path
		1742
		1743	Tries to decuce the likely region for a map knowing only its path.
		1744
		1745	=cut
		1746
		1747	sub find_by_path($) {
977	my ($path) = @_;	1748	my ($path) = @_;
978		1749
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1750	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1751
985	warn "loading '$path' into '$pkg'\n";	1752	for my $region (list) {
986		1753	if ($region->{match} && $path =~ $region->{match}) {
987	open my $fh, "<:utf8", $path	1754	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1755	if $region->specificity > $specificity;
989		1756	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1757	}
1019		1758
1020	# remove commands	1759	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1760	}
1126		1761
1127	=back	1762	=back
1128
1129		1763
1130	=head3 cf::map	1764	=head3 cf::map
1131		1765
1132	=over 4	1766	=over 4
1133		1767
…		…
1136	package cf::map;	1770	package cf::map;
1137		1771
1138	use Fcntl;	1772	use Fcntl;
1139	use Coro::AIO;	1773	use Coro::AIO;
1140		1774
		1775	use overload
		1776	'""' => \&as_string,
		1777	fallback => 1;
		1778
1141	our $MAX_RESET = 7200;	1779	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1780	our $DEFAULT_RESET = 3000;
1143		1781
1144	sub generate_random_map {	1782	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1783	my ($self, $rmp) = @_;
		1784
		1785	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1146		1786
1147	# mit "rum" bekleckern, nicht	1787	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1788	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1789	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1790	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1791	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1792	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1793	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1794	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1795	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1796	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1797	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1798	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1799	(cf::region::find $rmp->{region}), $rmp->{custom}
		1800	)
		1801	}
		1802
		1803	=item cf::map->register ($regex, $prio)
		1804
		1805	Register a handler for the map path matching the given regex at the
		1806	givne priority (higher is better, built-in handlers have priority 0, the
		1807	default).
		1808
		1809	=cut
		1810
		1811	sub register {
		1812	my (undef, $regex, $prio) = @_;
		1813	my $pkg = caller;
		1814
		1815	no strict;
		1816	push @{"$pkg\::ISA"}, __PACKAGE__;
		1817
		1818	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1819	}
		1820
		1821	# also paths starting with '/'
		1822	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1823
		1824	sub thawer_merge {
		1825	my ($self, $merge) = @_;
		1826
		1827	# we have to keep some variables in memory intact
		1828	local $self->{path};
		1829	local $self->{load_path};
		1830
		1831	$self->SUPER::thawer_merge ($merge);
		1832	}
		1833
		1834	sub normalise {
		1835	my ($path, $base) = @_;
		1836
		1837	$path = "$path"; # make sure its a string
		1838
		1839	$path =~ s/\.map$//;
		1840
		1841	# map plan:
		1842	#
		1843	# /! non-realised random map exit (special hack!)
		1844	# {... are special paths that are not being touched
		1845	# ?xxx/... are special absolute paths
		1846	# ?random/... random maps
		1847	# /... normal maps
		1848	# ~user/... per-player map of a specific user
		1849
		1850	$path =~ s/$PATH_SEP/\//go;
		1851
		1852	# treat it as relative path if it starts with
		1853	# something that looks reasonable
		1854	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1855	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1856
		1857	$base =~ s{[^/]+/?$}{};
		1858	$path = "$base/$path";
		1859	}
		1860
		1861	for ($path) {
		1862	redo if s{//}{/};
		1863	redo if s{/\.?/}{/};
		1864	redo if s{/[^/]+/\.\./}{/};
		1865	}
		1866
		1867	$path
		1868	}
		1869
		1870	sub new_from_path {
		1871	my (undef, $path, $base) = @_;
		1872
		1873	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1874
		1875	$path = normalise $path, $base;
		1876
		1877	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1878	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1879	my $self = bless cf::map::new, $pkg;
		1880	$self->{path} = $path; $self->path ($path);
		1881	$self->init; # pass $1 etc.
		1882	return $self;
		1883	}
		1884	}
		1885
		1886	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1887	()
		1888	}
		1889
		1890	sub init {
		1891	my ($self) = @_;
		1892
		1893	$self
		1894	}
		1895
		1896	sub as_string {
		1897	my ($self) = @_;
		1898
		1899	"$self->{path}"
		1900	}
		1901
		1902	# the displayed name, this is a one way mapping
		1903	sub visible_name {
		1904	&as_string
		1905	}
		1906
		1907	# the original (read-only) location
		1908	sub load_path {
		1909	my ($self) = @_;
		1910
		1911	"$MAPDIR/$self->{path}.map"
		1912	}
		1913
		1914	# the temporary/swap location
		1915	sub save_path {
		1916	my ($self) = @_;
		1917
		1918	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1919	"$TMPDIR/$path.map"
		1920	}
		1921
		1922	# the unique path, undef == no special unique path
		1923	sub uniq_path {
		1924	my ($self) = @_;
		1925
		1926	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1927	"$UNIQUEDIR/$path"
1161	}	1928	}
1162		1929
1163	# and all this just because we cannot iterate over	1930	# and all this just because we cannot iterate over
1164	# all maps in C++...	1931	# all maps in C++...
1165	sub change_all_map_light {	1932	sub change_all_map_light {
…		…
1167		1934
1168	$_->change_map_light ($change)	1935	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1936	for grep $_->outdoor, values %cf::MAP;
1170	}	1937	}
1171		1938
		1939	sub decay_objects {
		1940	my ($self) = @_;
		1941
		1942	return if $self->{deny_reset};
		1943
		1944	$self->do_decay_objects;
		1945	}
		1946
		1947	sub unlink_save {
		1948	my ($self) = @_;
		1949
		1950	utf8::encode (my $save = $self->save_path);
		1951	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1952	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1953	}
		1954
1172	sub try_load_header($) {	1955	sub load_header_from($) {
1173	my ($path) = @_;	1956	my ($self, $path) = @_;
1174		1957
1175	utf8::encode $path;	1958	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1959	my $f = new_from_file cf::object::thawer $path
1177	or return;	1960	or return;
1178		1961
1179	my $map = cf::map::new	1962	$self->_load_header ($f)
1180	or return;	1963	or return;
1181		1964
1182	$map->load_header ($path)	1965	local $MAP_LOADING{$self->{path}} = $self;
		1966	$f->resolve_delayed_derefs;
		1967
		1968	$self->{load_path} = $path;
		1969
		1970	1
		1971	}
		1972
		1973	sub load_header_orig {
		1974	my ($self) = @_;
		1975
		1976	$self->load_header_from ($self->load_path)
		1977	}
		1978
		1979	sub load_header_temp {
		1980	my ($self) = @_;
		1981
		1982	$self->load_header_from ($self->save_path)
		1983	}
		1984
		1985	sub prepare_temp {
		1986	my ($self) = @_;
		1987
		1988	$self->last_access ((delete $self->{last_access})
		1989	|| $cf::RUNTIME); #d#
		1990	# safety
		1991	$self->{instantiate_time} = $cf::RUNTIME
		1992	if $self->{instantiate_time} > $cf::RUNTIME;
		1993	}
		1994
		1995	sub prepare_orig {
		1996	my ($self) = @_;
		1997
		1998	$self->{load_original} = 1;
		1999	$self->{instantiate_time} = $cf::RUNTIME;
		2000	$self->last_access ($cf::RUNTIME);
		2001	$self->instantiate;
		2002	}
		2003
		2004	sub load_header {
		2005	my ($self) = @_;
		2006
		2007	if ($self->load_header_temp) {
		2008	$self->prepare_temp;
		2009	} else {
		2010	$self->load_header_orig
1183	or return;	2011	or return;
		2012	$self->prepare_orig;
		2013	}
1184		2014
1185	$map->{load_path} = $path;	2015	$self->{deny_reset} = 1
		2016	if $self->no_reset;
1186		2017
1187	$map	2018	$self->default_region (cf::region::find_by_path $self->{path})
1188	}	2019	unless $self->default_region;
1189		2020
		2021	1
		2022	}
		2023
1190	sub find_map;	2024	sub find;
1191	sub find_map {	2025	sub find {
1192	my ($path, $origin) = @_;	2026	my ($path, $origin) = @_;
1193		2027
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	2028	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		2029
		2030	cf::lock_wait "map_data:$path";#d#remove
1199	cf::lock_wait "map_find:$key";	2031	cf::lock_wait "map_find:$path";
1200		2032
1201	$cf::MAP{$key} || do {	2033	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	2034	my $guard1 = cf::lock_acquire "map_find:$path";
		2035	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1203		2036
1204	# do it the slow way	2037	my $map = new_from_path cf::map $path
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	2038	or return;
1219		2039
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	2040	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		2041
1233	if ($map->should_reset) {	2042	$map->load_header
		2043	or return;
		2044
		2045	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2046	# doing this can freeze the server in a sync job, obviously
		2047	#$cf::WAIT_FOR_TICK->wait;
		2048	undef $guard1;
		2049	undef $guard2;
1234	$map->reset;	2050	$map->reset;
1235	undef $guard;	2051	return find $path;
1236	$map = find_map $path
1237	or return;
1238	}	2052	}
1239		2053
1240	$cf::MAP{$key} = $map	2054	$cf::MAP{$path} = $map
1241	}	2055	}
1242	}	2056	}
		2057
		2058	sub pre_load { }
		2059	sub post_load { }
1243		2060
1244	sub load {	2061	sub load {
1245	my ($self) = @_;	2062	my ($self) = @_;
1246		2063
		2064	local $self->{deny_reset} = 1; # loading can take a long time
		2065
1247	my $path = $self->{path};	2066	my $path = $self->{path};
		2067
		2068	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2069	my $guard = cf::lock_acquire "map_data:$path";
1249		2070
		2071	return unless $self->valid;
1250	return if $self->in_memory != cf::MAP_SWAPPED;	2072	return unless $self->in_memory == cf::MAP_SWAPPED;
1251		2073
1252	$self->in_memory (cf::MAP_LOADING);	2074	$self->in_memory (cf::MAP_LOADING);
1253		2075
1254	$self->alloc;	2076	$self->alloc;
1255	$self->load_objects ($self->{load_path}, 1)	2077
		2078	$self->pre_load;
		2079	cf::cede_to_tick;
		2080
		2081	my $f = new_from_file cf::object::thawer $self->{load_path};
		2082	$f->skip_block;
		2083	$self->_load_objects ($f)
1256	or return;	2084	or return;
1257		2085
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2086	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	2087	if delete $self->{load_original};
1260		2088
1261	if (my $uniq = $path->uniq_path) {	2089	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	2090	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	2091	unless (aio_stat $uniq) {
		2092	if (my $f = new_from_file cf::object::thawer $uniq) {
1264	$self->clear_unique_items;	2093	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	2094	$self->_load_objects ($f);
		2095	$f->resolve_delayed_derefs;
		2096	}
1266	}	2097	}
1267	}	2098	}
1268		2099
		2100	$f->resolve_delayed_derefs;
		2101
		2102	cf::cede_to_tick;
1269	# now do the right thing for maps	2103	# now do the right thing for maps
1270	$self->link_multipart_objects;	2104	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	2105	$self->difficulty ($self->estimate_difficulty)
1281	unless $self->difficulty;	2106	unless $self->difficulty;
		2107	cf::cede_to_tick;
		2108
		2109	unless ($self->{deny_activate}) {
		2110	$self->decay_objects;
		2111	$self->fix_auto_apply;
		2112	$self->update_buttons;
		2113	cf::cede_to_tick;
		2114	$self->set_darkness_map;
		2115	cf::cede_to_tick;
1282	$self->activate;	2116	$self->activate;
1283	}	2117	}
1284		2118
		2119	$self->{last_save} = $cf::RUNTIME;
		2120	$self->last_access ($cf::RUNTIME);
		2121
1285	$self->in_memory (cf::MAP_IN_MEMORY);	2122	$self->in_memory (cf::MAP_ACTIVE);
1286	}	2123	}
1287		2124
1288	sub load_map_sync {	2125	$self->post_load;
		2126	}
		2127
		2128	sub customise_for {
		2129	my ($self, $ob) = @_;
		2130
		2131	return find "~" . $ob->name . "/" . $self->{path}
		2132	if $self->per_player;
		2133
		2134	# return find "?party/" . $ob->name . "/" . $self->{path}
		2135	# if $self->per_party;
		2136
		2137	$self
		2138	}
		2139
		2140	# find and load all maps in the 3x3 area around a map
		2141	sub load_neighbours {
		2142	my ($map) = @_;
		2143
		2144	my @neigh; # diagonal neighbours
		2145
		2146	for (0 .. 3) {
		2147	my $neigh = $map->tile_path ($_)
		2148	or next;
		2149	$neigh = find $neigh, $map
		2150	or next;
		2151	$neigh->load;
		2152
		2153	push @neigh,
		2154	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2155	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2156	}
		2157
		2158	for (grep defined $_->[0], @neigh) {
		2159	my ($path, $origin) = @$_;
		2160	my $neigh = find $path, $origin
		2161	or next;
		2162	$neigh->load;
		2163	}
		2164	}
		2165
		2166	sub find_sync {
1289	my ($path, $origin) = @_;	2167	my ($path, $origin) = @_;
1290		2168
1291	#warn "load_map_sync<$path, $origin>\n";#d#	2169	cf::sync_job { find $path, $origin }
		2170	}
1292		2171
1293	cf::sync_job {	2172	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	2173	my ($map) = @_;
1295	or return;	2174
1296	$map->load;	2175	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1297	$map	2176	if $Coro::current == $Coro::main;
		2177
		2178	cf::sync_job { $map->load };
		2179	}
		2180
		2181	our %MAP_PREFETCH;
		2182	our $MAP_PREFETCHER = undef;
		2183
		2184	sub find_async {
		2185	my ($path, $origin, $load) = @_;
		2186
		2187	$path = normalise $path, $origin && $origin->{path};
		2188
		2189	if (my $map = $cf::MAP{$path}) {
		2190	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2191	}
		2192
		2193	$MAP_PREFETCH{$path} |= $load;
		2194
		2195	$MAP_PREFETCHER ||= cf::async {
		2196	$Coro::current->{desc} = "map prefetcher";
		2197
		2198	while (%MAP_PREFETCH) {
		2199	while (my ($k, $v) = each %MAP_PREFETCH) {
		2200	if (my $map = find $k) {
		2201	$map->load if $v;
		2202	}
		2203
		2204	delete $MAP_PREFETCH{$k};
		2205	}
		2206	}
		2207	undef $MAP_PREFETCHER;
1298	}	2208	};
		2209	$MAP_PREFETCHER->prio (6);
		2210
		2211	()
1299	}	2212	}
1300		2213
1301	sub save {	2214	sub save {
1302	my ($self) = @_;	2215	my ($self) = @_;
1303		2216
		2217	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2218
1304	$self->{last_save} = $cf::RUNTIME;	2219	$self->{last_save} = $cf::RUNTIME;
1305		2220
1306	return unless $self->dirty;	2221	return unless $self->dirty;
1307		2222
1308	my $save = $self->{path}->save_path; utf8::encode $save;	2223	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2224	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		2225
1311	$self->{load_path} = $save;	2226	$self->{load_path} = $save;
1312		2227
1313	return if $self->{deny_save};	2228	return if $self->{deny_save};
1314		2229
		2230	local $self->{last_access} = $self->last_access;#d#
		2231
		2232	cf::async {
		2233	$Coro::current->{desc} = "map player save";
		2234	$_->contr->save for $self->players;
		2235	};
		2236
		2237	cf::get_slot 0.02;
		2238
1315	if ($uniq) {	2239	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2240	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	2241	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	2242	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2243	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	2244	}
1321	}	2245	}
1322		2246
1323	sub swap_out {	2247	sub swap_out {
1324	my ($self) = @_;	2248	my ($self) = @_;
1325		2249
1326	# save first because save cedes	2250	# save first because save cedes
1327	$self->save;	2251	$self->save;
1328		2252
		2253	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2254
1329	return if $self->players;	2255	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	2256	return if $self->in_memory != cf::MAP_ACTIVE;
1331	return if $self->{deny_save};	2257	return if $self->{deny_save};
1332		2258
		2259	$self->in_memory (cf::MAP_SWAPPED);
		2260
		2261	$self->deactivate;
		2262	$_->clear_links_to ($self) for values %cf::MAP;
1333	$self->clear;	2263	$self->clear;
1334	$self->in_memory (cf::MAP_SWAPPED);
1335	}	2264	}
1336		2265
1337	sub reset_at {	2266	sub reset_at {
1338	my ($self) = @_;	2267	my ($self) = @_;
1339		2268
1340	# TODO: safety, remove and allow resettable per-player maps	2269	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};
1342	return 1e99 if $self->{deny_reset};	2270	return 1e99 if $self->{deny_reset};
1343		2271
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2272	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2273	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		2274
…		…
1351	my ($self) = @_;	2279	my ($self) = @_;
1352		2280
1353	$self->reset_at <= $cf::RUNTIME	2281	$self->reset_at <= $cf::RUNTIME
1354	}	2282	}
1355		2283
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	2284	sub reset {
1378	my ($self) = @_;	2285	my ($self) = @_;
1379		2286
		2287	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2288
1380	return if $self->players;	2289	return if $self->players;
1381	return if $self->{path}{user_rel};#d#
1382		2290
1383	warn "resetting map ", $self->path;#d#	2291	warn "resetting map ", $self->path;
		2292
		2293	$self->in_memory (cf::MAP_SWAPPED);
		2294
		2295	# need to save uniques path
		2296	unless ($self->{deny_save}) {
		2297	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2298
		2299	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2300	if $uniq;
		2301	}
1384		2302
1385	delete $cf::MAP{$self->path};	2303	delete $cf::MAP{$self->path};
1386		2304
		2305	$self->deactivate;
1387	$_->clear_links_to ($self) for values %cf::MAP;	2306	$_->clear_links_to ($self) for values %cf::MAP;
		2307	$self->clear;
1388		2308
1389	$self->unlink_save;	2309	$self->unlink_save;
1390	$self->destroy;	2310	$self->destroy;
1391	}	2311	}
1392		2312
1393	my $nuke_counter = "aaaa";	2313	my $nuke_counter = "aaaa";
1394		2314
1395	sub nuke {	2315	sub nuke {
1396	my ($self) = @_;	2316	my ($self) = @_;
1397		2317
		2318	{
		2319	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2320
		2321	delete $cf::MAP{$self->path};
		2322
		2323	$self->unlink_save;
		2324
		2325	bless $self, "cf::map";
		2326	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	2327	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	2328	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	2329	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2330
		2331	$cf::MAP{$self->path} = $self;
		2332	}
		2333
1401	$self->reset; # polite request, might not happen	2334	$self->reset; # polite request, might not happen
1402	}	2335	}
1403		2336
1404	sub customise_for {	2337	=item $maps = cf::map::tmp_maps
1405	my ($map, $ob) = @_;
1406		2338
1407	if ($map->per_player) {	2339	Returns an arrayref with all map paths of currently instantiated and saved
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2340	maps. May block.
		2341
		2342	=cut
		2343
		2344	sub tmp_maps() {
1409	}	2345	[
1410		2346	map {
1411	$map	2347	utf8::decode $_;
		2348	/\.map$/
		2349	? normalise $_
		2350	: ()
		2351	} @{ aio_readdir $TMPDIR or [] }
		2352	]
1412	}	2353	}
1413		2354
1414	sub emergency_save {	2355	=item $maps = cf::map::random_maps
1415	local $cf::FREEZE = 1;
1416		2356
1417	warn "enter emergency map save\n";	2357	Returns an arrayref with all map paths of currently instantiated and saved
		2358	random maps. May block.
1418		2359
1419	cf::sync_job {	2360	=cut
1420	warn "begin emergency map save\n";	2361
1421	$_->save for values %cf::MAP;	2362	sub random_maps() {
		2363	[
		2364	map {
		2365	utf8::decode $_;
		2366	/\.map$/
		2367	? normalise "?random/$_"
		2368	: ()
		2369	} @{ aio_readdir $RANDOMDIR or [] }
		2370	]
		2371	}
		2372
		2373	=item cf::map::unique_maps
		2374
		2375	Returns an arrayref of paths of all shared maps that have
		2376	instantiated unique items. May block.
		2377
		2378	=cut
		2379
		2380	sub unique_maps() {
		2381	[
		2382	map {
		2383	utf8::decode $_;
		2384	s/\.map$//; # TODO future compatibility hack
		2385	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2386	? ()
		2387	: normalise $_
		2388	} @{ aio_readdir $UNIQUEDIR or [] }
		2389	]
		2390	}
		2391
		2392	=back
		2393
		2394	=head3 cf::object
		2395
		2396	=cut
		2397
		2398	package cf::object;
		2399
		2400	=over 4
		2401
		2402	=item $ob->inv_recursive
		2403
		2404	Returns the inventory of the object I<and> their inventories, recursively,
		2405	but I<not> the object itself.
		2406
		2407	=cut
		2408
		2409	sub inv_recursive_;
		2410	sub inv_recursive_ {
		2411	map { $_, inv_recursive_ $_->inv } @_
		2412	}
		2413
		2414	sub inv_recursive {
		2415	inv_recursive_ inv $_[0]
		2416	}
		2417
		2418	=item $ref = $ob->ref
		2419
		2420	Creates and returns a persistent reference to an object that can be stored as a string.
		2421
		2422	=item $ob = cf::object::deref ($refstring)
		2423
		2424	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2425	even if the object actually exists. May block.
		2426
		2427	=cut
		2428
		2429	sub deref {
		2430	my ($ref) = @_;
		2431
		2432	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2433	my ($uuid, $name) = ($1, $2);
		2434	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2435	or return;
		2436	$pl->ob->uuid eq $uuid
		2437	or return;
		2438
		2439	$pl->ob
		2440	} else {
		2441	warn "$ref: cannot resolve object reference\n";
		2442	undef
1422	};	2443	}
1423
1424	warn "end emergency map save\n";
1425	}	2444	}
1426		2445
1427	package cf;	2446	package cf;
1428		2447
1429	=back	2448	=back
1430
1431		2449
1432	=head3 cf::object::player	2450	=head3 cf::object::player
1433		2451
1434	=over 4	2452	=over 4
1435		2453
…		…
1449		2467
1450	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1451		2469
1452	if ($self->{record_replies}) {	2470	if ($self->{record_replies}) {
1453	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2472
1454	} else {	2473	} else {
		2474	my $pl = $self->contr;
		2475
		2476	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2477	my $dialog = $pl->{npc_dialog};
		2478	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2479
		2480	} else {
1455	$msg = $npc->name . " says: $msg" if $npc;	2481	$msg = $npc->name . " says: $msg" if $npc;
1456	$self->message ($msg, $flags);	2482	$self->message ($msg, $flags);
		2483	}
1457	}	2484	}
		2485	}
		2486
		2487	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2488
		2489	=cut
		2490
		2491	sub cf::object::send_msg {
		2492	my $pl = shift->contr
		2493	or return;
		2494	$pl->send_msg (@_);
1458	}	2495	}
1459		2496
1460	=item $player_object->may ("access")	2497	=item $player_object->may ("access")
1461		2498
1462	Returns wether the given player is authorized to access resource "access"	2499	Returns wether the given player is authorized to access resource "access"
…		…
1475		2512
1476	=item $player_object->enter_link	2513	=item $player_object->enter_link
1477		2514
1478	Freezes the player and moves him/her to a special map (C<{link}>).	2515	Freezes the player and moves him/her to a special map (C<{link}>).
1479		2516
1480	The player should be reaosnably safe there for short amounts of time. You	2517	The player should be reasonably safe there for short amounts of time. You
1481	I<MUST> call C<leave_link> as soon as possible, though.	2518	I<MUST> call C<leave_link> as soon as possible, though.
1482		2519
		2520	Will never block.
		2521
1483	=item $player_object->leave_link ($map, $x, $y)	2522	=item $player_object->leave_link ($map, $x, $y)
1484		2523
1485	Moves the player out of the specila link map onto the given map. If the	2524	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	2525	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	2526	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	2527	fails, to the emergency map position.
1489		2528
1490	Might block.	2529	Might block.
1491		2530
1492	=cut	2531	=cut
		2532
		2533	sub link_map {
		2534	unless ($LINK_MAP) {
		2535	$LINK_MAP = cf::map::find "{link}"
		2536	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2537	$LINK_MAP->load;
		2538	}
		2539
		2540	$LINK_MAP
		2541	}
1493		2542
1494	sub cf::object::player::enter_link {	2543	sub cf::object::player::enter_link {
1495	my ($self) = @_;	2544	my ($self) = @_;
1496		2545
1497	$self->deactivate_recursive;	2546	$self->deactivate_recursive;
1498		2547
1499	return if $self->map == $LINK_MAP;	2548	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		2549
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2550	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	2551	if $self->map && $self->map->{path} ne "{link}";
1503		2552
1504	$self->enter_map ($LINK_MAP, 20, 20);	2553	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	2554	}
1506		2555
1507	sub cf::object::player::leave_link {	2556	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	2557	my ($self, $map, $x, $y) = @_;
		2558
		2559	return unless $self->contr->active;
1509		2560
1510	my $link_pos = delete $self->{_link_pos};	2561	my $link_pos = delete $self->{_link_pos};
1511		2562
1512	unless ($map) {	2563	unless ($map) {
1513	# restore original map position	2564	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	2565	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	2566	$map = cf::map::find $map;
1516		2567
1517	unless ($map) {	2568	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	2569	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	2570	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	2571	or die "FATAL: cannot load emergency map\n";
1521	}	2572	}
1522	}	2573	}
1523		2574
1524	($x, $y) = (-1, -1)	2575	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	2578	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	2579	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	2580	if $x <=0 && $y <= 0;
1530		2581
1531	$map->load;	2582	$map->load;
		2583	$map->load_neighbours;
1532		2584
		2585	return unless $self->contr->active;
1533	$self->activate_recursive;	2586	$self->activate_recursive;
		2587
		2588	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	2589	$self->enter_map ($map, $x, $y);
1535	}	2590	}
1536		2591
1537	cf::player->attach (	2592	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1538	on_logout => sub {
1539	my ($pl) = @_;
1540		2593
1541	# abort map switching before logout	2594	Moves the player to the given map-path and coordinates by first freezing
1542	if ($pl->ob->{_link_pos}) {	2595	her, loading and preparing them map, calling the provided $check callback
1543	cf::sync_job {	2596	that has to return the map if sucecssful, and then unfreezes the player on
1544	$pl->ob->leave_link	2597	the new (success) or old (failed) map position. In either case, $done will
1545	};	2598	be called at the end of this process.
1546	}
1547	},
1548	on_login => sub {
1549	my ($pl) = @_;
1550		2599
1551	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;
1555	cf::async {
1556	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;
1560	};
1561	}
1562	},
1563	);
1564
1565	=item $player_object->goto_map ($path, $x, $y)
1566
1567	=cut	2600	=cut
1568		2601
		2602	our $GOTOGEN;
		2603
1569	sub cf::object::player::goto_map {	2604	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	2605	my ($self, $path, $x, $y, $check, $done) = @_;
		2606
		2607	# do generation counting so two concurrent goto's will be executed in-order
		2608	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1571		2609
1572	$self->enter_link;	2610	$self->enter_link;
1573		2611
1574	(cf::async {	2612	(async {
1575	$path = new cf::path $path;	2613	$Coro::current->{desc} = "player::goto $path $x $y";
1576		2614
1577	my $map = cf::map::find_map $path->as_string;	2615	# *tag paths override both path and x|y
		2616	if ($path =~ /^\*(.*)$/) {
		2617	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2618	my $ob = $obs[rand @obs];
		2619
		2620	# see if we actually can go there
		2621	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2622	$ob = $obs[rand @obs];
		2623	} else {
		2624	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2625	}
		2626	# else put us there anyways for now #d#
		2627
		2628	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2629	} else {
		2630	($path, $x, $y) = (undef, undef, undef);
		2631	}
		2632	}
		2633
		2634	my $map = eval {
		2635	my $map = defined $path ? cf::map::find $path : undef;
		2636
		2637	if ($map) {
1578	$map = $map->customise_for ($self) if $map;	2638	$map = $map->customise_for ($self);
1579		2639	$map = $check->($map) if $check && $map;
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	2640	} else {
1581	# if $map;
1582
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2641	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2642	}
1584		2643
		2644	$map
		2645	};
		2646
		2647	if ($@) {
		2648	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2649	LOG llevError | logBacktrace, Carp::longmess $@;
		2650	}
		2651
		2652	if ($gen == $self->{_goto_generation}) {
		2653	delete $self->{_goto_generation};
1585	$self->leave_link ($map, $x, $y);	2654	$self->leave_link ($map, $x, $y);
		2655	}
		2656
		2657	$done->() if $done;
1586	})->prio (1);	2658	})->prio (1);
1587	}	2659	}
1588		2660
1589	=item $player_object->enter_exit ($exit_object)	2661	=item $player_object->enter_exit ($exit_object)
1590		2662
…		…
1592		2664
1593	sub parse_random_map_params {	2665	sub parse_random_map_params {
1594	my ($spec) = @_;	2666	my ($spec) = @_;
1595		2667
1596	my $rmp = { # defaults	2668	my $rmp = { # defaults
1597	xsize => 10,	2669	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2670	ysize => (cf::rndm 15, 40),
		2671	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2672	#layout => string,
1599	};	2673	};
1600		2674
1601	for (split /\n/, $spec) {	2675	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2676	my ($k, $v) = split /\s+/, $_, 2;
1603		2677
…		…
1607	$rmp	2681	$rmp
1608	}	2682	}
1609		2683
1610	sub prepare_random_map {	2684	sub prepare_random_map {
1611	my ($exit) = @_;	2685	my ($exit) = @_;
		2686
		2687	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		2688
1613	# all this does is basically replace the /! path by	2689	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	2690	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	2691	# that depends on the exit object
1616		2692
1617	my $rmp = parse_random_map_params $exit->msg;	2693	my $rmp = parse_random_map_params $exit->msg;
1618		2694
1619	if ($exit->map) {	2695	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2696	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2697	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2698	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2699	$rmp->{origin_y} = $exit->y;
1624	}	2700	}
1625		2701
1626	$rmp->{random_seed} ||= $exit->random_seed;	2702	$rmp->{random_seed} ||= $exit->random_seed;
1627		2703
1628	my $data = cf::to_json $rmp;	2704	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1629	my $md5 = Digest::MD5::md5_hex $data;	2705	my $md5 = Digest::MD5::md5_hex $data;
		2706	my $meta = "$RANDOMDIR/$md5.meta";
1630		2707
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2708	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	2709	aio_write $fh, 0, (length $data), $data, 0;
		2710	undef $fh;
		2711	aio_rename "$meta~", $meta;
1633		2712
1634	$exit->slaying ("?random/$md5");	2713	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2714	$exit->msg (undef);
1636	}	2715	}
1637	}	2716	}
…		…
1639	sub cf::object::player::enter_exit {	2718	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2719	my ($self, $exit) = @_;
1641		2720
1642	return unless $self->type == cf::PLAYER;	2721	return unless $self->type == cf::PLAYER;
1643		2722
		2723	if ($exit->slaying eq "/!") {
		2724	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2725	# the problem is that $exit might not survive long enough
		2726	# so it needs to be done right now, right here
		2727	cf::sync_job { prepare_random_map $exit };
		2728	}
		2729
		2730	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2731	my $hp = $exit->stats->hp;
		2732	my $sp = $exit->stats->sp;
		2733
1644	$self->enter_link;	2734	$self->enter_link;
1645		2735
		2736	# if exit is damned, update players death & WoR home-position
		2737	$self->contr->savebed ($slaying, $hp, $sp)
		2738	if $exit->flag (FLAG_DAMNED);
		2739
1646	(cf::async {	2740	(async {
		2741	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2742
		2743	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2744	unless (eval {
1648	prepare_random_map $exit	2745	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		2746
1654	1;	2747	1;
1655	}) {	2748	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2749	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2750	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2751	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2752	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2753
1661	warn "ERROR in enter_exit: $@";	2754	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2755	$self->leave_link;
1663	}	2756	}
1664	})->prio (1);	2757	})->prio (1);
…		…
1677		2770
1678	sub cf::client::send_drawinfo {	2771	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2772	my ($self, $text, $flags) = @_;
1680		2773
1681	utf8::encode $text;	2774	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2775	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2776	}
1684		2777
		2778	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2779
		2780	Send a drawinfo or msg packet to the client, formatting the msg for the
		2781	client if neccessary. C<$type> should be a string identifying the type of
		2782	the message, with C<log> being the default. If C<$color> is negative, suppress
		2783	the message unless the client supports the msg packet.
		2784
		2785	=cut
		2786
		2787	# non-persistent channels (usually the info channel)
		2788	our %CHANNEL = (
		2789	"c/identify" => {
		2790	id => "infobox",
		2791	title => "Identify",
		2792	reply => undef,
		2793	tooltip => "Items recently identified",
		2794	},
		2795	"c/examine" => {
		2796	id => "infobox",
		2797	title => "Examine",
		2798	reply => undef,
		2799	tooltip => "Signs and other items you examined",
		2800	},
		2801	"c/book" => {
		2802	id => "infobox",
		2803	title => "Book",
		2804	reply => undef,
		2805	tooltip => "The contents of a note or book",
		2806	},
		2807	"c/lookat" => {
		2808	id => "infobox",
		2809	title => "Look",
		2810	reply => undef,
		2811	tooltip => "What you saw there",
		2812	},
		2813	"c/who" => {
		2814	id => "infobox",
		2815	title => "Players",
		2816	reply => undef,
		2817	tooltip => "Shows players who are currently online",
		2818	},
		2819	"c/body" => {
		2820	id => "infobox",
		2821	title => "Body Parts",
		2822	reply => undef,
		2823	tooltip => "Shows which body parts you posess and are available",
		2824	},
		2825	"c/uptime" => {
		2826	id => "infobox",
		2827	title => "Uptime",
		2828	reply => undef,
		2829	tooltip => "How long the server has been running since last restart",
		2830	},
		2831	"c/mapinfo" => {
		2832	id => "infobox",
		2833	title => "Map Info",
		2834	reply => undef,
		2835	tooltip => "Information related to the maps",
		2836	},
		2837	);
		2838
		2839	sub cf::client::send_msg {
		2840	my ($self, $channel, $msg, $color, @extra) = @_;
		2841
		2842	$msg = $self->pl->expand_cfpod ($msg);
		2843
		2844	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2845
		2846	# check predefined channels, for the benefit of C
		2847	if ($CHANNEL{$channel}) {
		2848	$channel = $CHANNEL{$channel};
		2849
		2850	$self->ext_msg (channel_info => $channel)
		2851	if $self->can_msg;
		2852
		2853	$channel = $channel->{id};
		2854
		2855	} elsif (ref $channel) {
		2856	# send meta info to client, if not yet sent
		2857	unless (exists $self->{channel}{$channel->{id}}) {
		2858	$self->{channel}{$channel->{id}} = $channel;
		2859	$self->ext_msg (channel_info => $channel)
		2860	if $self->can_msg;
		2861	}
		2862
		2863	$channel = $channel->{id};
		2864	}
		2865
		2866	return unless @extra || length $msg;
		2867
		2868	if ($self->can_msg) {
		2869	# default colour, mask it out
		2870	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2871	if $color & cf::NDI_DEF;
		2872
		2873	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2874	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2875	} else {
		2876	if ($color >= 0) {
		2877	# replace some tags by gcfclient-compatible ones
		2878	for ($msg) {
		2879	1 while
		2880	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2881	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2882	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2883	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2884	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2885	}
		2886
		2887	$color &= cf::NDI_COLOR_MASK;
		2888
		2889	utf8::encode $msg;
		2890
		2891	if (0 && $msg =~ /\[/) {
		2892	# COMMAND/INFO
		2893	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2894	} else {
		2895	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2896	$self->send_packet ("drawinfo $color $msg")
		2897	}
		2898	}
		2899	}
		2900	}
		2901
		2902	=item $client->ext_msg ($type, @msg)
		2903
		2904	Sends an ext event to the client.
		2905
		2906	=cut
		2907
		2908	sub cf::client::ext_msg($$@) {
		2909	my ($self, $type, @msg) = @_;
		2910
		2911	if ($self->extcmd == 2) {
		2912	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2913	} elsif ($self->extcmd == 1) { # TODO: remove
		2914	push @msg, msgtype => "event_$type";
		2915	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2916	}
		2917	}
		2918
		2919	=item $client->ext_reply ($msgid, @msg)
		2920
		2921	Sends an ext reply to the client.
		2922
		2923	=cut
		2924
		2925	sub cf::client::ext_reply($$@) {
		2926	my ($self, $id, @msg) = @_;
		2927
		2928	if ($self->extcmd == 2) {
		2929	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2930	} elsif ($self->extcmd == 1) {
		2931	#TODO: version 1, remove
		2932	unshift @msg, msgtype => "reply", msgid => $id;
		2933	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2934	}
		2935	}
1685		2936
1686	=item $success = $client->query ($flags, "text", \&cb)	2937	=item $success = $client->query ($flags, "text", \&cb)
1687		2938
1688	Queues a query to the client, calling the given callback with	2939	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2940	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2941	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2942
1692	Queries can fail, so check the return code. Or don't, as queries will become	2943	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2944	become reliable at some point in the future.
1694		2945
1695	=cut	2946	=cut
1696		2947
1697	sub cf::client::query {	2948	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2949	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2957	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2958	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2959
1709	$self->send_packet ($self->{query_queue}[0][0])	2960	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2961	if @{ $self->{query_queue} } == 1;
		2962
		2963	1
1711	}	2964	}
1712		2965
1713	cf::client->attach (	2966	cf::client->attach (
		2967	on_connect => sub {
		2968	my ($ns) = @_;
		2969
		2970	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2971	},
1714	on_reply => sub {	2972	on_reply => sub {
1715	my ($ns, $msg) = @_;	2973	my ($ns, $msg) = @_;
1716		2974
1717	# this weird shuffling is so that direct followup queries	2975	# this weird shuffling is so that direct followup queries
1718	# get handled first	2976	# get handled first
1719	my $queue = delete $ns->{query_queue}	2977	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2978	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2979
1722	(shift @$queue)->[1]->($msg);	2980	(shift @$queue)->[1]->($msg);
		2981	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2982
1724	push @{ $ns->{query_queue} }, @$queue;	2983	push @{ $ns->{query_queue} }, @$queue;
1725		2984
1726	if (@{ $ns->{query_queue} } == @$queue) {	2985	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2986	if (@$queue) {
…		…
1729	} else {	2988	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2989	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2990	}
1732	}	2991	}
1733	},	2992	},
		2993	on_exticmd => sub {
		2994	my ($ns, $buf) = @_;
		2995
		2996	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2997
		2998	if (ref $msg) {
		2999	my ($type, $reply, @payload) =
		3000	"ARRAY" eq ref $msg
		3001	? @$msg
		3002	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3003
		3004	my @reply;
		3005
		3006	if (my $cb = $EXTICMD{$type}) {
		3007	@reply = $cb->($ns, @payload);
		3008	}
		3009
		3010	$ns->ext_reply ($reply, @reply)
		3011	if $reply;
		3012
		3013	} else {
		3014	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3015	}
		3016
		3017	cf::override;
		3018	},
1734	);	3019	);
1735		3020
1736	=item $client->coro (\&cb)	3021	=item $client->async (\&cb)
1737		3022
1738	Create a new coroutine, running the specified callback. The coroutine will	3023	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	3024	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	3025	or loss of connection).
1741		3026
1742	=cut	3027	=cut
1743		3028
1744	sub cf::client::coro {	3029	sub cf::client::async {
1745	my ($self, $cb) = @_;	3030	my ($self, $cb) = @_;
1746		3031
1747	my $coro = &cf::async ($cb);	3032	my $coro = &Coro::async ($cb);
1748		3033
1749	$coro->on_destroy (sub {	3034	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	3035	delete $self->{_coro}{$coro+0};
1751	});	3036	});
1752		3037
…		…
1779	our $safe = new Safe "safe";	3064	our $safe = new Safe "safe";
1780	our $safe_hole = new Safe::Hole;	3065	our $safe_hole = new Safe::Hole;
1781		3066
1782	$SIG{FPE} = 'IGNORE';	3067	$SIG{FPE} = 'IGNORE';
1783		3068
1784	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3069	$safe->permit_only (Opcode::opset qw(
		3070	:base_core :base_mem :base_orig :base_math
		3071	grepstart grepwhile mapstart mapwhile
		3072	sort time
		3073	));
1785		3074
1786	# here we export the classes and methods available to script code	3075	# here we export the classes and methods available to script code
1787		3076
1788	=pod	3077	=pod
1789		3078
1790	The following fucntions and emthods are available within a safe environment:	3079	The following functions and methods are available within a safe environment:
1791		3080
1792	cf::object contr pay_amount pay_player map	3081	cf::object
		3082	contr pay_amount pay_player map x y force_find force_add destroy
		3083	insert remove name archname title slaying race decrease_ob_nr
		3084
1793	cf::object::player player	3085	cf::object::player
1794	cf::player peaceful	3086	player
1795	cf::map trigger	3087
		3088	cf::player
		3089	peaceful
		3090
		3091	cf::map
		3092	trigger
1796		3093
1797	=cut	3094	=cut
1798		3095
1799	for (	3096	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	3097	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3098	insert remove inv name archname title slaying race
		3099	decrease_ob_nr destroy)],
1801	["cf::object::player" => qw(player)],	3100	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	3101	["cf::player" => qw(peaceful)],
1803	["cf::map" => qw(trigger)],	3102	["cf::map" => qw(trigger)],
1804	) {	3103	) {
1805	no strict 'refs';	3104	no strict 'refs';
…		…
1876	=back	3175	=back
1877		3176
1878	=cut	3177	=cut
1879		3178
1880	#############################################################################	3179	#############################################################################
		3180	# the server's init and main functions
1881		3181
1882	=head2 EXTENSION DATABASE SUPPORT	3182	sub load_facedata($) {
		3183	my ($path) = @_;
1883		3184
1884	Crossfire maintains a very simple database for extension use. It can	3185	# HACK to clear player env face cache, we need some signal framework
1885	currently store anything that can be serialised using Storable, which	3186	# for this (global event?)
1886	excludes objects.	3187	%ext::player_env::MUSIC_FACE_CACHE = ();
1887		3188
1888	The parameter C<$family> should best start with the name of the extension	3189	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1889	using it, it should be unique.
1890		3190
1891	=over 4	3191	warn "loading facedata from $path\n";
1892		3192
1893	=item $hashref = cf::db_get $family	3193	my $facedata;
		3194	0 < aio_load $path, $facedata
		3195	or die "$path: $!";
1894		3196
1895	Return a hashref for use by the extension C<$family>, which can be	3197	$facedata = Coro::Storable::thaw $facedata;
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898		3198
1899	=item $value = cf::db_get $family => $key	3199	$facedata->{version} == 2
		3200	or cf::cleanup "$path: version mismatch, cannot proceed.";
1900		3201
1901	Returns a single value from the database	3202	# patch in the exptable
1902		3203	$facedata->{resource}{"res/exp_table"} = {
1903	=item cf::db_put $family => $hashref	3204	type => FT_RSRC,
1904		3205	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}
1931
1932	my $pid;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	3206	};
		3207	cf::cede_to_tick;
1954		3208
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}	3209	{
		3210	my $faces = $facedata->{faceinfo};
1959		3211
1960	sub db_get($;$) {	3212	while (my ($face, $info) = each %$faces) {
1961	@_ >= 2	3213	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965		3214
1966	sub db_put($$;$) {	3215	cf::face::set_visibility $idx, $info->{visibility};
1967	if (@_ >= 3) {	3216	cf::face::set_magicmap $idx, $info->{magicmap};
1968	$DB->{$_[0]}{$_[1]} = $_[2];	3217	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1969	} else {	3218	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974		3219
1975	cf::global->attach (	3220	cf::cede_to_tick;
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	3221	}
1980	);
1981	}
1982		3222
1983	#############################################################################	3223	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	3224	next unless $info->{smooth};
1985		3225
1986	sub cfg_load {	3226	my $idx = cf::face::find $face
		3227	or next;
		3228
		3229	if (my $smooth = cf::face::find $info->{smooth}) {
		3230	cf::face::set_smooth $idx, $smooth;
		3231	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3232	} else {
		3233	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3234	}
		3235
		3236	cf::cede_to_tick;
		3237	}
		3238	}
		3239
		3240	{
		3241	my $anims = $facedata->{animinfo};
		3242
		3243	while (my ($anim, $info) = each %$anims) {
		3244	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3245	cf::cede_to_tick;
		3246	}
		3247
		3248	cf::anim::invalidate_all; # d'oh
		3249	}
		3250
		3251	{
		3252	# TODO: for gcfclient pleasure, we should give resources
		3253	# that gcfclient doesn't grok a >10000 face index.
		3254	my $res = $facedata->{resource};
		3255
		3256	while (my ($name, $info) = each %$res) {
		3257	if (defined $info->{type}) {
		3258	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3259	my $data;
		3260
		3261	if ($info->{type} & 1) {
		3262	# prepend meta info
		3263
		3264	my $meta = $enc->encode ({
		3265	name => $name,
		3266	%{ $info->{meta} || {} },
		3267	});
		3268
		3269	$data = pack "(w/a*)*", $meta, $info->{data};
		3270	} else {
		3271	$data = $info->{data};
		3272	}
		3273
		3274	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3275	cf::face::set_type $idx, $info->{type};
		3276	} else {
		3277	$RESOURCE{$name} = $info;
		3278	}
		3279
		3280	cf::cede_to_tick;
		3281	}
		3282	}
		3283
		3284	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3285
		3286	1
		3287	}
		3288
		3289	cf::global->attach (on_resource_update => sub {
		3290	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3291	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3292
		3293	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3294	my $sound = $soundconf->{compat}[$_]
		3295	or next;
		3296
		3297	my $face = cf::face::find "sound/$sound->[1]";
		3298	cf::sound::set $sound->[0] => $face;
		3299	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3300	}
		3301
		3302	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3303	my $face = cf::face::find "sound/$v";
		3304	cf::sound::set $k => $face;
		3305	}
		3306	}
		3307	});
		3308
		3309	register_exticmd fx_want => sub {
		3310	my ($ns, $want) = @_;
		3311
		3312	while (my ($k, $v) = each %$want) {
		3313	$ns->fx_want ($k, $v);
		3314	}
		3315	};
		3316
		3317	sub load_resource_file($) {
		3318	my $guard = lock_acquire "load_resource_file";
		3319
		3320	my $status = load_resource_file_ $_[0];
		3321	get_slot 0.1, 100;
		3322	cf::arch::commit_load;
		3323
		3324	$status
		3325	}
		3326
		3327	sub reload_regions {
		3328	# HACK to clear player env face cache, we need some signal framework
		3329	# for this (global event?)
		3330	%ext::player_env::MUSIC_FACE_CACHE = ();
		3331
		3332	load_resource_file "$MAPDIR/regions"
		3333	or die "unable to load regions file\n";
		3334
		3335	for (cf::region::list) {
		3336	$_->{match} = qr/$_->{match}/
		3337	if exists $_->{match};
		3338	}
		3339	}
		3340
		3341	sub reload_facedata {
		3342	load_facedata "$DATADIR/facedata"
		3343	or die "unable to load facedata\n";
		3344	}
		3345
		3346	sub reload_archetypes {
		3347	load_resource_file "$DATADIR/archetypes"
		3348	or die "unable to load archetypes\n";
		3349	}
		3350
		3351	sub reload_treasures {
		3352	load_resource_file "$DATADIR/treasures"
		3353	or die "unable to load treasurelists\n";
		3354	}
		3355
		3356	sub reload_resources {
		3357	warn "reloading resource files...\n";
		3358
		3359	reload_facedata;
		3360	reload_archetypes;
		3361	reload_regions;
		3362	reload_treasures;
		3363
		3364	warn "finished reloading resource files\n";
		3365	}
		3366
		3367	sub init {
		3368	my $guard = freeze_mainloop;
		3369
		3370	reload_resources;
		3371	}
		3372
		3373	sub reload_config {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	3374	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	3375	or return;
1989		3376
1990	local $/;	3377	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	3378	*CFG = YAML::Load <$fh>;
1992		3379
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3380	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3381
		3382	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3383	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1994		3384
1995	if (exists $CFG{mlockall}) {	3385	if (exists $CFG{mlockall}) {
1996	eval {	3386	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	3387	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	3388	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	3389	};
2000	warn $@ if $@;	3390	warn $@ if $@;
2001	}	3391	}
2002	}	3392	}
2003		3393
2004	sub main {	3394	sub main {
2005	# we must not ever block the main coroutine	3395	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	3396	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3397	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	3398	(async {
2009	Event::one_event;	3399	$Coro::current->{desc} = "IDLE BUG HANDLER";
2010	})->();	3400	EV::loop EV::LOOP_ONESHOT;
		3401	})->prio (Coro::PRIO_MAX);
2011	};	3402	};
2012		3403
2013	cfg_load;	3404	{
2014	db_load;	3405	my $guard = freeze_mainloop;
		3406	reload_config;
		3407	db_init;
2015	load_extensions;	3408	load_extensions;
		3409
		3410	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3411	evthread_start IO::AIO::poll_fileno;
		3412	}
		3413
2016	Event::loop;	3414	EV::loop;
2017	}	3415	}
2018		3416
2019	#############################################################################	3417	#############################################################################
2020	# initialisation	3418	# initialisation and cleanup
2021		3419
		3420	# install some emergency cleanup handlers
		3421	BEGIN {
		3422	our %SIGWATCHER = ();
		3423	for my $signal (qw(INT HUP TERM)) {
		3424	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3425	cf::cleanup "SIG$signal";
		3426	};
		3427	}
		3428	}
		3429
		3430	sub write_runtime_sync {
		3431	my $runtime = "$LOCALDIR/runtime";
		3432
		3433	# first touch the runtime file to show we are still running:
		3434	# the fsync below can take a very very long time.
		3435
		3436	IO::AIO::aio_utime $runtime, undef, undef;
		3437
		3438	my $guard = cf::lock_acquire "write_runtime";
		3439
		3440	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3441	or return;
		3442
		3443	my $value = $cf::RUNTIME + 90 + 10;
		3444	# 10 is the runtime save interval, for a monotonic clock
		3445	# 60 allows for the watchdog to kill the server.
		3446
		3447	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3448	and return;
		3449
		3450	# always fsync - this file is important
		3451	aio_fsync $fh
		3452	and return;
		3453
		3454	# touch it again to show we are up-to-date
		3455	aio_utime $fh, undef, undef;
		3456
		3457	close $fh
		3458	or return;
		3459
		3460	aio_rename "$runtime~", $runtime
		3461	and return;
		3462
		3463	warn "runtime file written.\n";
		3464
		3465	1
		3466	}
		3467
		3468	our $uuid_lock;
		3469	our $uuid_skip;
		3470
		3471	sub write_uuid_sync($) {
		3472	$uuid_skip ||= $_[0];
		3473
		3474	return if $uuid_lock;
		3475	local $uuid_lock = 1;
		3476
		3477	my $uuid = "$LOCALDIR/uuid";
		3478
		3479	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3480	or return;
		3481
		3482	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3483	$uuid_skip = 0;
		3484
		3485	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3486	and return;
		3487
		3488	# always fsync - this file is important
		3489	aio_fsync $fh
		3490	and return;
		3491
		3492	close $fh
		3493	or return;
		3494
		3495	aio_rename "$uuid~", $uuid
		3496	and return;
		3497
		3498	warn "uuid file written ($value).\n";
		3499
		3500	1
		3501
		3502	}
		3503
		3504	sub write_uuid($$) {
		3505	my ($skip, $sync) = @_;
		3506
		3507	$sync ? write_uuid_sync $skip
		3508	: async { write_uuid_sync $skip };
		3509	}
		3510
		3511	sub emergency_save() {
		3512	my $freeze_guard = cf::freeze_mainloop;
		3513
		3514	warn "enter emergency perl save\n";
		3515
		3516	cf::sync_job {
		3517	# use a peculiar iteration method to avoid tripping on perl
		3518	# refcount bugs in for. also avoids problems with players
		3519	# and maps saved/destroyed asynchronously.
		3520	warn "begin emergency player save\n";
		3521	for my $login (keys %cf::PLAYER) {
		3522	my $pl = $cf::PLAYER{$login} or next;
		3523	$pl->valid or next;
		3524	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3525	$pl->save;
		3526	}
		3527	warn "end emergency player save\n";
		3528
		3529	warn "begin emergency map save\n";
		3530	for my $path (keys %cf::MAP) {
		3531	my $map = $cf::MAP{$path} or next;
		3532	$map->valid or next;
		3533	$map->save;
		3534	}
		3535	warn "end emergency map save\n";
		3536
		3537	warn "begin emergency database checkpoint\n";
		3538	BDB::db_env_txn_checkpoint $DB_ENV;
		3539	warn "end emergency database checkpoint\n";
		3540
		3541	warn "begin write uuid\n";
		3542	write_uuid_sync 1;
		3543	warn "end write uuid\n";
		3544	};
		3545
		3546	warn "leave emergency perl save\n";
		3547	}
		3548
		3549	sub post_cleanup {
		3550	my ($make_core) = @_;
		3551
		3552	warn Carp::longmess "post_cleanup backtrace"
		3553	if $make_core;
		3554	}
		3555
2022	sub reload() {	3556	sub do_reload_perl() {
2023	# can/must only be called in main	3557	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3558	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	3559	warn "can only reload from main coroutine";
2026	return;	3560	return;
2027	}	3561	}
2028		3562
2029	warn "reloading...";	3563	warn "reloading...";
2030		3564
2031	local $FREEZE = 1;	3565	warn "entering sync_job";
		3566
		3567	cf::sync_job {
		3568	cf::write_runtime_sync; # external watchdog should not bark
2032	cf::emergency_save;	3569	cf::emergency_save;
		3570	cf::write_runtime_sync; # external watchdog should not bark
2033		3571
2034	eval {	3572	warn "syncing database to disk";
		3573	BDB::db_env_txn_checkpoint $DB_ENV;
		3574
2035	# if anything goes wrong in here, we should simply crash as we already saved	3575	# if anything goes wrong in here, we should simply crash as we already saved
2036		3576
2037	# cancel all watchers	3577	warn "flushing outstanding aio requests";
2038	for (Event::all_watchers) {	3578	for (;;) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	3579	BDB::flush;
		3580	IO::AIO::flush;
		3581	Coro::cede_notself;
		3582	last unless IO::AIO::nreqs || BDB::nreqs;
		3583	warn "iterate...";
2040	}	3584	}
2041		3585
		3586	++$RELOAD;
		3587
2042	# cancel all extension coros	3588	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	3589	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	3590	%EXT_CORO = ();
2045		3591
2046	# unload all extensions	3592	warn "removing commands";
2047	for (@exts) {	3593	%COMMAND = ();
		3594
		3595	warn "removing ext/exti commands";
		3596	%EXTCMD = ();
		3597	%EXTICMD = ();
		3598
		3599	warn "unloading/nuking all extensions";
		3600	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	3601	warn "... unloading $pkg";
2049	unload_extension $_;	3602
		3603	if (my $cb = $pkg->can ("unload")) {
		3604	eval {
		3605	$cb->($pkg);
		3606	1
		3607	} or warn "$pkg unloaded, but with errors: $@";
2050	}	3608	}
2051		3609
		3610	warn "... nuking $pkg";
		3611	Symbol::delete_package $pkg;
		3612	}
		3613
2052	# unload all modules loaded from $LIBDIR	3614	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	3615	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3616	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		3617
2056	warn "removing <$k>";	3618	warn "... unloading $k";
2057	delete $INC{$k};	3619	delete $INC{$k};
2058		3620
2059	$k =~ s/\.pm$//;	3621	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	3622	$k =~ s/\//::/g;
2061		3623
…		…
2064	}	3626	}
2065		3627
2066	Symbol::delete_package $k;	3628	Symbol::delete_package $k;
2067	}	3629	}
2068		3630
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	3631	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3632	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3633	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3634
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	3635	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	3636	delete $INC{"cf.pm"};
		3637	delete $INC{"cf/pod.pm"};
2082		3638
2083	# don't, removes xs symbols, too,	3639	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3640	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3641	#Symbol::delete_package __PACKAGE__;
2086		3642
2087	# reload cf.pm	3643	warn "unload completed, starting to reload now";
		3644
2088	warn "reloading cf.pm";	3645	warn "reloading cf.pm";
2089	require cf;	3646	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3647	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		3648
2092	# load config and database again	3649	warn "loading config and database again";
2093	cf::cfg_load;	3650	cf::reload_config;
2094	cf::db_load;
2095		3651
2096	# load extensions
2097	warn "load extensions";	3652	warn "loading extensions";
2098	cf::load_extensions;	3653	cf::load_extensions;
2099		3654
2100	# reattach attachments to objects	3655	warn "reattaching attachments to objects/players";
2101	warn "reattach";	3656	_global_reattach; # objects, sockets
2102	_global_reattach;	3657	warn "reattaching attachments to maps";
		3658	reattach $_ for values %MAP;
		3659	warn "reattaching attachments to players";
		3660	reattach $_ for values %PLAYER;
		3661
		3662	warn "leaving sync_job";
		3663
		3664	1
		3665	} or do {
		3666	warn $@;
		3667	cf::cleanup "error while reloading, exiting.";
2103	};	3668	};
2104		3669
2105	if ($@) {	3670	warn "reloaded";
2106	warn $@;
2107	warn "error while reloading, exiting.";
2108	exit 1;
2109	}
2110
2111	warn "reloaded successfully";
2112	};	3671	};
2113		3672
2114	#############################################################################	3673	our $RELOAD_WATCHER; # used only during reload
2115		3674
2116	unless ($LINK_MAP) {	3675	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	3676	# doing reload synchronously and two reloads happen back-to-back,
		3677	# coro crashes during coro_state_free->destroy here.
2118		3678
2119	$LINK_MAP->width (41);	3679	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2120	$LINK_MAP->height (41);	3680	do_reload_perl;
2121	$LINK_MAP->alloc;	3681	undef $RELOAD_WATCHER;
2122	$LINK_MAP->path ("{link}");	3682	};
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,
2129	cb => sub {
2130	$_[0]->w->cancel;
2131
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});
2150
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3683	}
2156
2157	register "<global>", __PACKAGE__;
2158		3684
2159	register_command "reload" => sub {	3685	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3686	my ($who, $arg) = @_;
2161		3687
2162	if ($who->flag (FLAG_WIZ)) {	3688	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3689	$who->message ("reloading server.");
		3690	async {
		3691	$Coro::current->{desc} = "perl_reload";
		3692	reload_perl;
		3693	};
2166	}	3694	}
2167	};	3695	};
2168		3696
2169	unshift @INC, $LIBDIR;	3697	unshift @INC, $LIBDIR;
2170		3698
2171	$TICK_WATCHER = Event->timer (	3699	my $bug_warning = 0;
2172	reentrant => 0,	3700
2173	prio => 0,	3701	our @WAIT_FOR_TICK;
2174	at => $NEXT_TICK || $TICK,	3702	our @WAIT_FOR_TICK_BEGIN;
2175	data => WF_AUTOCANCEL,	3703
2176	cb => sub {	3704	sub wait_for_tick {
2177	unless ($FREEZE) {	3705	return if tick_inhibit || $Coro::current == $Coro::main;
		3706
		3707	my $signal = new Coro::Signal;
		3708	push @WAIT_FOR_TICK, $signal;
		3709	$signal->wait;
		3710	}
		3711
		3712	sub wait_for_tick_begin {
		3713	return if tick_inhibit || $Coro::current == $Coro::main;
		3714
		3715	my $signal = new Coro::Signal;
		3716	push @WAIT_FOR_TICK_BEGIN, $signal;
		3717	$signal->wait;
		3718	}
		3719
		3720	sub tick {
		3721	if ($Coro::current != $Coro::main) {
		3722	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3723	unless ++$bug_warning > 10;
		3724	return;
		3725	}
		3726
2178	cf::server_tick; # one server iteration	3727	cf::server_tick; # one server iteration
2179	$RUNTIME += $TICK;
2180	}
2181		3728
2182	$NEXT_TICK += $TICK;	3729	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2183		3730	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2184	# if we are delayed by four ticks or more, skip them all	3731	Coro::async_pool {
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3732	$Coro::current->{desc} = "runtime saver";
2186
2187	$TICK_WATCHER->at ($NEXT_TICK);
2188	$TICK_WATCHER->start;
2189	},
2190	);
2191
2192	IO::AIO::max_poll_time $TICK * 0.2;
2193
2194	Event->io (
2195	fd => IO::AIO::poll_fileno,
2196	poll => 'r',
2197	prio => 5,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,
2204	after => 0,
2205	interval => 10,
2206	cb => sub {
2207	(Coro::unblock_sub {
2208	write_runtime	3733	write_runtime_sync
2209	or warn "ERROR: unable to write runtime file: $!";	3734	or warn "ERROR: unable to write runtime file: $!";
2210	})->();	3735	};
2211	},	3736	}
2212	);	3737
		3738	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3739	$sig->send;
		3740	}
		3741	while (my $sig = shift @WAIT_FOR_TICK) {
		3742	$sig->send;
		3743	}
		3744
		3745	$LOAD = ($NOW - $TICK_START) / $TICK;
		3746	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3747
		3748	if (0) {
		3749	if ($NEXT_TICK) {
		3750	my $jitter = $TICK_START - $NEXT_TICK;
		3751	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3752	warn "jitter $JITTER\n";#d#
		3753	}
		3754	}
		3755	}
		3756
		3757	{
		3758	# configure BDB
		3759
		3760	BDB::min_parallel 8;
		3761	BDB::max_poll_reqs $TICK * 0.1;
		3762	$Coro::BDB::WATCHER->priority (1);
		3763
		3764	unless ($DB_ENV) {
		3765	$DB_ENV = BDB::db_env_create;
		3766	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3767	| BDB::LOG_AUTOREMOVE, 1);
		3768	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3769	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3770
		3771	cf::sync_job {
		3772	eval {
		3773	BDB::db_env_open
		3774	$DB_ENV,
		3775	$BDBDIR,
		3776	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3777	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3778	0666;
		3779
		3780	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3781	};
		3782
		3783	cf::cleanup "db_env_open(db): $@" if $@;
		3784	};
		3785	}
		3786
		3787	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3788	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3789	};
		3790	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3791	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3792	};
		3793	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3794	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3795	};
		3796	}
		3797
		3798	{
		3799	# configure IO::AIO
		3800
		3801	IO::AIO::min_parallel 8;
		3802	IO::AIO::max_poll_time $TICK * 0.1;
		3803	$Coro::AIO::WATCHER->priority (1);
		3804	}
		3805
		3806	my $_log_backtrace;
		3807
		3808	sub _log_backtrace {
		3809	my ($msg, @addr) = @_;
		3810
		3811	$msg =~ s/\n//;
		3812
		3813	# limit the # of concurrent backtraces
		3814	if ($_log_backtrace < 2) {
		3815	++$_log_backtrace;
		3816	async {
		3817	$Coro::current->{desc} = "abt $msg";
		3818
		3819	my @bt = fork_call {
		3820	@addr = map { sprintf "%x", $_ } @addr;
		3821	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3822	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3823	or die "addr2line: $!";
		3824
		3825	my @funcs;
		3826	my @res = <$fh>;
		3827	chomp for @res;
		3828	while (@res) {
		3829	my ($func, $line) = splice @res, 0, 2, ();
		3830	push @funcs, "[$func] $line";
		3831	}
		3832
		3833	@funcs
		3834	};
		3835
		3836	LOG llevInfo, "[ABT] $msg\n";
		3837	LOG llevInfo, "[ABT] $_\n" for @bt;
		3838	--$_log_backtrace;
		3839	};
		3840	} else {
		3841	LOG llevInfo, "[ABT] $msg\n";
		3842	LOG llevInfo, "[ABT] [suppressed]\n";
		3843	}
		3844	}
		3845
		3846	# load additional modules
		3847	use cf::pod;
2213		3848
2214	END { cf::emergency_save }	3849	END { cf::emergency_save }
2215		3850
2216	1	3851	1
2217		3852

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