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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.151 by root, Mon Jan 8 20:59:15 2007 UTC vs.
Revision 1.457 by root, Wed Oct 1 05:50:19 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
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict "vars", "subs";
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
13	use Coro 3.3 ();	37	use Coro ();
		38	use Coro::State;
		39	use Coro::Handle;
		40	use Coro::EV;
14	use Coro::Event;	41	use Coro::AnyEvent;
15	use Coro::Timer;	42	use Coro::Timer;
16	use Coro::Signal;	43	use Coro::Signal;
17	use Coro::Semaphore;	44	use Coro::Semaphore;
		45	use Coro::AnyEvent;
18	use Coro::AIO;	46	use Coro::AIO;
		47	use Coro::BDB 1.6;
		48	use Coro::Storable;
		49	use Coro::Util ();
19		50
		51	use JSON::XS 2.01 ();
		52	use BDB ();
		53	use Data::Dumper;
20	use Digest::MD5;	54	use Digest::MD5;
21	use Fcntl;	55	use Fcntl;
		56	use YAML ();
22	use IO::AIO 2.32 ();	57	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	58	use Time::HiRes;
		59	use Compress::LZF;
		60	use Digest::MD5 ();
25		61
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	62	AnyEvent::detect;
27		63
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	64	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	65	#
		66	$Storable::canonical = 1; # reduce rsync transfers
		67	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		68
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	69	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		70
		71	# make sure c-lzf reinitialises itself
		72	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		73	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
32		74
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	75	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		76
35	our %COMMAND = ();	77	our %COMMAND = ();
36	our %COMMAND_TIME = ();	78	our %COMMAND_TIME = ();
		79
		80	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	81	our %EXTCMD = ();
		82	our %EXTICMD = ();
		83	our %EXT_CORO = (); # coroutines bound to extensions
		84	our %EXT_MAP = (); # pluggable maps
38		85
		86	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	87	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		88
42	our $TICK = MAX_TIME * 1e-6;	89	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	90	our $DATADIR = datadir;
		91	our $LIBDIR = "$DATADIR/ext";
		92	our $PODDIR = "$DATADIR/pod";
		93	our $MAPDIR = "$DATADIR/" . mapdir;
		94	our $LOCALDIR = localdir;
		95	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		96	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		97	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		98	our $RANDOMDIR = "$LOCALDIR/random";
		99	our $BDBDIR = "$LOCALDIR/db";
		100	our $PIDFILE = "$LOCALDIR/pid";
		101	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		102
		103	our %RESOURCE;
		104
		105	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		106	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	107	our $NEXT_TICK;
45	our $NOW;	108	our $USE_FSYNC = 1; # use fsync to write maps - default off
		109
		110	our $BDB_DEADLOCK_WATCHER;
		111	our $BDB_CHECKPOINT_WATCHER;
		112	our $BDB_TRICKLE_WATCHER;
		113	our $DB_ENV;
46		114
47	our %CFG;	115	our %CFG;
48		116
49	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
51		120
52	our %PLAYER; # all users	121	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	122	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	123	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	124
56	our %EXT_CORO; # coroutines bound to extensions	125	# used to convert map paths into valid unix filenames by replacing / by ∕
		126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		127
		128	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		129	our $LOADAVG; # same thing, but with alpha-smoothing
		130	our $JITTER; # average jitter
		131	our $TICK_START; # for load detecting purposes
		132
		133	our @POST_INIT;
		134
		135	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
57		136
58	binmode STDOUT;	137	binmode STDOUT;
59	binmode STDERR;	138	binmode STDERR;
60		139
61	# read virtual server time, if available	140	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	141	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	142	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	143	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	144	$RUNTIME = <$fh> + 0.;
66	}	145	}
67		146
68	mkdir cf::localdir;	147	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	148	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		149
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	150	our $EMERGENCY_POSITION;
		151
		152	sub cf::map::normalise;
77		153
78	#############################################################################	154	#############################################################################
79		155
80	=head2 GLOBAL VARIABLES	156	=head2 GLOBAL VARIABLES
81		157
…		…
88	=item $cf::RUNTIME	164	=item $cf::RUNTIME
89		165
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	166	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	167	every server tick.
92		168
93	=item $cf::LIBDIR	169	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		170	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		171	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		172
95	The perl library directory, where extensions and cf-specific modules can	173	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	174	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		175	unique-items directory, player file directory, random maps directory and
		176	database environment.
97		177
98	=item $cf::NOW	178	=item $cf::NOW
99		179
100	The time of the last (current) server tick.	180	The time of the last (current) server tick.
101		181
102	=item $cf::TICK	182	=item $cf::TICK
103		183
104	The interval between server ticks, in seconds.	184	The interval between server ticks, in seconds.
105		185
		186	=item $cf::LOADAVG
		187
		188	The current CPU load on the server (alpha-smoothed), as a value between 0
		189	(none) and 1 (overloaded), indicating how much time is spent on processing
		190	objects per tick. Healthy values are < 0.5.
		191
		192	=item $cf::LOAD
		193
		194	The raw value load value from the last tick.
		195
106	=item %cf::CFG	196	=item %cf::CFG
107		197
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	198	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	199	from wherever your confdir points to.
		200
		201	=item cf::wait_for_tick, cf::wait_for_tick_begin
		202
		203	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		204	returns directly I<after> the tick processing (and consequently, can only wake one process
		205	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		206
		207	=item @cf::INVOKE_RESULTS
		208
		209	This array contains the results of the last C<invoke ()> call. When
		210	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		211	that call.
110		212
111	=back	213	=back
112		214
113	=cut	215	=cut
114		216
115	BEGIN {	217	BEGIN {
116	*CORE::GLOBAL::warn = sub {	218	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	219	my $msg = join "", @_;
118	utf8::encode $msg;
119		220
120	$msg .= "\n"	221	$msg .= "\n"
121	unless $msg =~ /\n$/;	222	unless $msg =~ /\n$/;
122		223
		224	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		225
123	LOG llevError, $msg;	226	LOG llevError, $msg;
124	};	227	};
125	}	228	}
		229
		230	$Coro::State::DIEHOOK = sub {
		231	return unless $^S eq 0; # "eq", not "=="
		232
		233	if ($Coro::current == $Coro::main) {#d#
		234	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		235	return;#d#
		236	}#d#
		237
		238	# kill coroutine otherwise
		239	warn Carp::longmess $_[0];
		240	Coro::terminate
		241	};
		242
		243	$SIG{__DIE__} = sub { }; #d#?
126		244
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	245	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	246	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	247	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	248	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	249	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		250	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	251	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		252
134	# we bless all objects into (empty) derived classes to force a method lookup	253	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	254	# within the Safe compartment.
136	for my $pkg (qw(	255	for my $pkg (qw(
137	cf::global cf::attachable	256	cf::global cf::attachable
138	cf::object cf::object::player	257	cf::object cf::object::player
139	cf::client cf::player	258	cf::client cf::player
140	cf::arch cf::living	259	cf::arch cf::living
		260	cf::map cf::mapspace
141	cf::map cf::party cf::region	261	cf::party cf::region
142	)) {	262	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	263	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	264	}
146		265
147	$Event::DIED = sub {	266	$EV::DIED = sub {
148	warn "error in event callback: @_";	267	warn "error in event callback: @_";
149	};	268	};
150		269
151	my %ext_pkg;	270	#############################################################################
152	my @exts;
153	my @hook;
154		271
155	=head2 UTILITY FUNCTIONS	272	=head2 UTILITY FUNCTIONS
156		273
157	=over 4	274	=over 4
158		275
159	=cut	276	=item dumpval $ref
160		277
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	278	=cut
162		279
		280	sub dumpval {
		281	eval {
		282	local $SIG{__DIE__};
		283	my $d;
		284	if (1) {
		285	$d = new Data::Dumper([$_[0]], ["*var"]);
		286	$d->Terse(1);
		287	$d->Indent(2);
		288	$d->Quotekeys(0);
		289	$d->Useqq(1);
		290	#$d->Bless(...);
		291	$d->Seen($_[1]) if @_ > 1;
		292	$d = $d->Dump();
		293	}
		294	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		295	$d
		296	} || "[unable to dump $_[0]: '$@']";
		297	}
		298
163	=item $ref = cf::from_json $json	299	=item $ref = cf::decode_json $json
164		300
165	Converts a JSON string into the corresponding perl data structure.	301	Converts a JSON string into the corresponding perl data structure.
166		302
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	303	=item $json = cf::encode_json $ref
175		304
176	Converts a perl data structure into its JSON representation.	305	Converts a perl data structure into its JSON representation.
177		306
178	=cut	307	=cut
179		308
180	sub to_json($) {	309	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	310
182	JSON::Syck::Dump $_[0]	311	sub encode_json($) { $json_coder->encode ($_[0]) }
		312	sub decode_json($) { $json_coder->decode ($_[0]) }
		313
		314	=item cf::post_init { BLOCK }
		315
		316	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		317	but I<before> the server starts ticking again.
		318
		319	The cdoeblock will have a single boolean argument to indicate whether this
		320	is a reload or not.
		321
		322	=cut
		323
		324	sub post_init(&) {
		325	push @POST_INIT, shift;
183	}	326	}
184		327
185	=item cf::lock_wait $string	328	=item cf::lock_wait $string
186		329
187	Wait until the given lock is available. See cf::lock_acquire.	330	Wait until the given lock is available. See cf::lock_acquire.
…		…
191	Wait until the given lock is available and then acquires it and returns	334	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	335	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	336	for example when the coroutine gets canceled), the lock is automatically
194	returned.	337	returned.
195		338
		339	Locks are *not* recursive, locking from the same coro twice results in a
		340	deadlocked coro.
		341
196	Lock names should begin with a unique identifier (for example, cf::map::find	342	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	343	uses map_find and cf::map::load uses map_load).
198		344
		345	=item $locked = cf::lock_active $string
		346
		347	Return true if the lock is currently active, i.e. somebody has locked it.
		348
199	=cut	349	=cut
200		350
201	our %LOCK;	351	our %LOCK;
		352	our %LOCKER;#d#
202		353
203	sub lock_wait($) {	354	sub lock_wait($) {
204	my ($key) = @_;	355	my ($key) = @_;
205		356
		357	if ($LOCKER{$key} == $Coro::current) {#d#
		358	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		359	return;#d#
		360	}#d#
		361
206	# wait for lock, if any	362	# wait for lock, if any
207	while ($LOCK{$key}) {	363	while ($LOCK{$key}) {
		364	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
208	push @{ $LOCK{$key} }, $Coro::current;	365	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;	366	Coro::schedule;
210	}	367	}
211	}	368	}
212		369
…		…
215		372
216	# wait, to be sure we are not locked	373	# wait, to be sure we are not locked
217	lock_wait $key;	374	lock_wait $key;
218		375
219	$LOCK{$key} = [];	376	$LOCK{$key} = [];
		377	$LOCKER{$key} = $Coro::current;#d#
220		378
221	Coro::guard {	379	Coro::guard {
		380	delete $LOCKER{$key};#d#
222	# wake up all waiters, to be on the safe side	381	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	382	$_->ready for @{ delete $LOCK{$key} };
224	}	383	}
225	}	384	}
226		385
		386	sub lock_active($) {
		387	my ($key) = @_;
		388
		389	! ! $LOCK{$key}
		390	}
		391
227	sub freeze_mainloop {	392	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
229		394
230	my $guard = Coro::guard { $TICK_WATCHER->start };	395	Coro::guard \&tick_inhibit_dec;
231	$TICK_WATCHER->stop;	396	}
232	$guard	397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
		456	}
		457	};
		458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
233	}	471	}
234		472
235	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
236		474
237	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		480
243	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
244		482
245	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
246		484
247	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
250		489
251	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
254	fast or be very important.	493	fast or be very important.
…		…
257		496
258	sub sync_job(&) {	497	sub sync_job(&) {
259	my ($job) = @_;	498	my ($job) = @_;
260		499
261	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
262	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
264		505
265	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	507
267	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
268		509
269	my $busy = 1;	510	my $busy = 1;
270	my @res;	511	my @res;
271		512
272	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	515	@res = eval { $job->() };
274	warn $@ if $@;	516	warn $@ if $@;
275	undef $busy;	517	undef $busy;
276	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
277		519
278	while ($busy) {	520	while ($busy) {
279	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
280	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
281		531
282	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
283	} else {	533	} else {
284	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
285		535
…		…
287	}	537	}
288	}	538	}
289		539
290	=item $coro = cf::async_ext { BLOCK }	540	=item $coro = cf::async_ext { BLOCK }
291		541
292	Like async, but this coro is automcatially being canceled when the	542	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	543	extension calling this is being unloaded.
294		544
295	=cut	545	=cut
296		546
297	sub async_ext(&) {	547	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
306		556
307	$coro	557	$coro
308	}	558	}
309		559
310	sub write_runtime {	560	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		561
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	562	Executes the given code block with the given arguments in a seperate
314	or return;	563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
315		566
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	567	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		568
320	aio_fsync $fh	569	sub fork_call(&@) {
321	and return;	570	my ($cb, @args) = @_;
322		571
323	close $fh	572	# we seemingly have to make a local copy of the whole thing,
324	or return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
325		575
326	aio_rename "$runtime~", $runtime	576	my @res = Coro::Util::fork_eval {
327	and return;	577	reset_signals;
		578	&$cb
		579	}, @args;
328		580
		581	wantarray ? @res : $res[-1]
		582	}
		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
329	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	747	}
331		748
332	=back	749	=back
333		750
334	=cut	751	=cut
335		752
336	#############################################################################	753	#############################################################################
337		754
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
459		756
460	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
461	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
463		760
464	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	763	Deliantra).
467		764
468	=over 4	765	=over 4
469		766
470	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
471		768
…		…
515	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
516		813
517	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
518	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
519		816
520	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
521	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
522		819
523	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
524		821
525	=over 4	822	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	882	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	883	our @CB_MAP = ();
587		884
588	my %attachment;	885	my %attachment;
589		886
		887	sub cf::attachable::thawer_merge {
		888	# simply override everything except _meta
		889	local $_[0]{_meta};
		890	%{$_[0]} = %{$_[1]};
		891	}
		892
590	sub _attach_cb($$$$) {	893	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	894	my ($registry, $event, $prio, $cb) = @_;
592		895
593	use sort 'stable';	896	use sort 'stable';
594		897
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
629		932
630	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		937
635	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	939	my $pkg = shift @arg;
637		940
638	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
668	}	971	}
669		972
670	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
671	} else {	974	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	976	}
674		977
675	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
676	}	979	}
677		980
…		…
679	if (ref $_[0]) {	982	if (ref $_[0]) {
680	_object_attach @_;	983	_object_attach @_;
681	} else {	984	} else {
682	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
683	}	986	}
		987	_recalc_want;
684	};	988	};
685		989
686	# all those should be optimised	990	# all those should be optimised
687	sub cf::attachable::detach {	991	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
692	reattach ($obj);	996	reattach ($obj);
693	} else {	997	} else {
694	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
695	}	999	}
		1000	_recalc_want;
696	};	1001	};
697		1002
698	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
700		1005
…		…
715	";	1020	";
716	die if $@;	1021	die if $@;
717	}	1022	}
718		1023
719	our $override;	1024	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1026
722	sub override {	1027	sub override {
723	$override = 1;	1028	$override = 1;
724	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
725	}	1030	}
726		1031
727	sub do_invoke {	1032	sub do_invoke {
728	my $event = shift;	1033	my $event = shift;
729	my $callbacks = shift;	1034	my $callbacks = shift;
730		1035
731	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
732		1037
733	local $override;	1038	local $override;
734		1039
735	for (@$callbacks) {	1040	for (@$callbacks) {
736	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
745	}	1050	}
746		1051
747	0	1052	0
748	}	1053	}
749		1054
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1056
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1058
754	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
755		1060
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1064
760	=back	1065	=back
761		1066
762	=cut	1067	=cut
763		1068
764	#############################################################################	1069	#############################################################################
765	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
766		1113
767	sub reattach {	1114	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1116	my ($obj) = @_;
		1117
		1118	# no longer needed after getting rid of delete_package?
		1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1120
771	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
772		1122
773	@$registry = ();	1123	@$registry = ();
774		1124
…		…
789	cf::attachable->attach (	1139	cf::attachable->attach (
790	prio => -1000000,	1140	prio => -1000000,
791	on_instantiate => sub {	1141	on_instantiate => sub {
792	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
793		1143
794	$data = from_json $data;	1144	$data = decode_json $data;
795		1145
796	for (@$data) {	1146	for (@$data) {
797	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
798		1148
799	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1165	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
817		1167
818	sync_job {	1168	sync_job {
819	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
822		1173
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	1177	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1178	aio_close $fh;
828		1179
829	if (@$objs) {	1180	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1183	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1184	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	1185	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	1186	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1187	aio_rename "$filename.pst~", "$filename.pst";
837	}	1188	}
838	} else {	1189	} else {
839	aio_unlink "$filename.pst";	1190	aio_unlink "$filename.pst";
840	}	1191	}
841		1192
842	aio_rename "$filename~", $filename;	1193	aio_rename "$filename~", $filename;
		1194
		1195	$filename =~ s%/[^/]+$%%;
		1196	aio_pathsync $filename if $cf::USE_FSYNC;
843	} else {	1197	} else {
844	warn "FATAL: $filename~: $!\n";	1198	warn "FATAL: $filename~: $!\n";
845	}	1199	}
846	} else {	1200	} else {
847	aio_unlink $filename;	1201	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1202	aio_unlink "$filename.pst";
849	}	1203	}
850	}	1204	};
851	}	1205	}
852		1206
853	sub object_freezer_as_string {	1207	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1208	my ($rdata, $objs) = @_;
855		1209
…		…
867	or return;	1221	or return;
868		1222
869	unless (aio_stat "$filename.pst") {	1223	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1224	(aio_load "$filename.pst", $av) >= 0
871	or return;	1225	or return;
		1226
872	$av = eval { (Storable::thaw $av)->{objs} };	1227	my $st = eval { Coro::Storable::thaw $av };
		1228	$av = $st->{objs};
873	}	1229	}
874		1230
		1231	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1232	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1233	$decname, length $data, scalar @{$av || []};
		1234
877	return ($data, $av);	1235	($data, $av)
878	}	1236	}
		1237
		1238	=head2 COMMAND CALLBACKS
		1239
		1240	=over 4
		1241
		1242	=cut
879		1243
880	#############################################################################	1244	#############################################################################
881	# command handling &c	1245	# command handling &c
882		1246
883	=item cf::register_command $name => \&callback($ob,$args);	1247	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1260	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1261	}
898		1262
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1263	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1264
901	Register a callbackf ro execution when the client sends an extcmd packet.	1265	Register a callback for execution when the client sends an (synchronous)
		1266	extcmd packet. Ext commands will be processed in the order they are
		1267	received by the server, like other user commands. The first argument is
		1268	the logged-in player. Ext commands can only be processed after a player
		1269	has logged in successfully.
902		1270
903	If the callback returns something, it is sent back as if reply was being	1271	If the callback returns something, it is sent back as if reply was being
904	called.	1272	called.
905		1273
		1274	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1275
		1276	Register a callback for execution when the client sends an (asynchronous)
		1277	exticmd packet. Exti commands are processed by the server as soon as they
		1278	are received, i.e. out of order w.r.t. other commands. The first argument
		1279	is a client socket. Exti commands can be received anytime, even before
		1280	log-in.
		1281
		1282	If the callback returns something, it is sent back as if reply was being
		1283	called.
		1284
906	=cut	1285	=cut
907		1286
908	sub register_extcmd {	1287	sub register_extcmd {
909	my ($name, $cb) = @_;	1288	my ($name, $cb) = @_;
910		1289
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1290	$EXTCMD{$name} = $cb;
915	}	1291	}
		1292
		1293	sub register_exticmd {
		1294	my ($name, $cb) = @_;
		1295
		1296	$EXTICMD{$name} = $cb;
		1297	}
		1298
		1299	use File::Glob ();
916		1300
917	cf::player->attach (	1301	cf::player->attach (
918	on_command => sub {	1302	on_command => sub {
919	my ($pl, $name, $params) = @_;	1303	my ($pl, $name, $params) = @_;
920		1304
…		…
928	cf::override;	1312	cf::override;
929	},	1313	},
930	on_extcmd => sub {	1314	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1315	my ($pl, $buf) = @_;
932		1316
933	my $msg = eval { from_json $buf };	1317	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1318
935	if (ref $msg) {	1319	if (ref $msg) {
		1320	my ($type, $reply, @payload) =
		1321	"ARRAY" eq ref $msg
		1322	? @$msg
		1323	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1324
		1325	my @reply;
		1326
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1327	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1328	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1329	}
		1330
		1331	$pl->ext_reply ($reply, @reply)
		1332	if $reply;
		1333
941	} else {	1334	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1335	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1336	}
944		1337
945	cf::override;	1338	cf::override;
946	},	1339	},
947	);	1340	);
948		1341
949	sub register {	1342	# "readahead" all extensions
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	1343	sub cache_extensions {
956	my ($path) = @_;	1344	my $grp = IO::AIO::aio_group;
957		1345
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1346	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
959	my $base = $1;	1347	for (grep /\.ext$/, @{$_[0]}) {
960	my $pkg = $1;	1348	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}	1349	}
1008	}	1350	};
1009		1351
1010	# remove extcmds	1352	$grp
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	1353	}
1024		1354
1025	sub load_extensions {	1355	sub load_extensions {
		1356	cf::sync_job {
		1357	my %todo;
		1358
1026	for my $ext (<$LIBDIR/*.ext>) {	1359	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1360	next unless -r $path;
1028	eval {	1361
1029	load_extension $ext;	1362	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1363	my $base = $1;
		1364	my $pkg = $1;
		1365	$pkg =~ s/[^[:word:]]/_/g;
		1366	$pkg = "ext::$pkg";
		1367
		1368	open my $fh, "<:utf8", $path
		1369	or die "$path: $!";
		1370
		1371	my $source = do { local $/; <$fh> };
		1372
		1373	my %ext = (
		1374	path => $path,
		1375	base => $base,
		1376	pkg => $pkg,
		1377	);
		1378
		1379	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1380	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1381
		1382	$ext{source} =
		1383	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1384	. "#line 1 \"$path\"\n{\n"
		1385	. $source
		1386	. "\n};\n1";
		1387
		1388	$todo{$base} = \%ext;
		1389	}
		1390
		1391	my %done;
		1392	while (%todo) {
		1393	my $progress;
		1394
		1395	while (my ($k, $v) = each %todo) {
		1396	for (split /,\s*/, $v->{meta}{depends}) {
		1397	goto skip
		1398	unless exists $done{$_};
		1399	}
		1400
		1401	warn "... loading '$k' into '$v->{pkg}'\n";
		1402
		1403	unless (eval $v->{source}) {
		1404	my $msg = $@ ? "$v->{path}: $@\n"
		1405	: "$v->{base}: extension inactive.\n";
		1406
		1407	if (exists $v->{meta}{mandatory}) {
		1408	warn $msg;
		1409	cf::cleanup "mandatory extension failed to load, exiting.";
		1410	}
		1411
		1412	warn $msg;
		1413	}
		1414
		1415	$done{$k} = delete $todo{$k};
		1416	push @EXTS, $v->{pkg};
		1417	$progress = 1;
1030	1	1418	}
1031	} or warn "$ext not loaded: $@";	1419
		1420	skip:
		1421	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1422	unless $progress;
		1423	}
1032	}	1424	};
1033	}	1425	}
1034		1426
1035	#############################################################################	1427	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1428
1038	*cf::mapsupport::on_clean = sub {	1429	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1430
1073	=head2 CORE EXTENSIONS	1431	=head2 CORE EXTENSIONS
1074		1432
1075	Functions and methods that extend core crossfire objects.	1433	Functions and methods that extend core deliantra objects.
1076		1434
1077	=cut	1435	=cut
1078		1436
1079	package cf::player;	1437	package cf::player;
1080		1438
		1439	use Coro::AIO;
		1440
1081	=head3 cf::player	1441	=head3 cf::player
1082		1442
1083	=over 4	1443	=over 4
1084		1444
		1445	=item cf::player::num_playing
		1446
		1447	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1448
		1449	=cut
		1450
		1451	sub num_playing {
		1452	scalar grep
		1453	$_->ob->map
		1454	&& !$_->hidden
		1455	&& !$_->ob->flag (cf::FLAG_WIZ),
		1456	cf::player::list
		1457	}
		1458
1085	=item cf::player::find $login	1459	=item cf::player::find $login
1086		1460
1087	Returns the given player object, loading it if necessary (might block).	1461	Returns the given player object, loading it if necessary (might block).
1088		1462
1089	=cut	1463	=cut
1090		1464
1091	sub playerdir($) {	1465	sub playerdir($) {
1092	cf::localdir	1466	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1467	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1468	}
1098		1469
1099	sub path($) {	1470	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1471	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1472
1102	(playerdir $login) . "/$login.pl"	1473	(playerdir $login) . "/playerdata"
1103	}	1474	}
1104		1475
1105	sub find_active($) {	1476	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1477	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1478	and $cf::PLAYER{$_[0]}->active
…		…
1110		1481
1111	sub exists($) {	1482	sub exists($) {
1112	my ($login) = @_;	1483	my ($login) = @_;
1113		1484
1114	$cf::PLAYER{$login}	1485	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1486	or !aio_stat path $login
1116	}	1487	}
1117		1488
1118	sub find($) {	1489	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1490	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1491	my $login = $_[0];
1121		1492
1122	my $guard = cf::lock_acquire "user_find:$login";	1493	my $guard = cf::lock_acquire "user_find:$login";
1123		1494
1124	$cf::PLAYER{$_[0]} || do {	1495	$cf::PLAYER{$_[0]} || do {
1125	my $pl = load_pl path $login	1496	# rename old playerfiles to new ones
		1497	#TODO: remove when no longer required
		1498	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1499	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1500	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1501	aio_unlink +(playerdir $login) . "/$login.pl";
		1502
		1503	my $f = new_from_file cf::object::thawer path $login
1126	or return;	1504	or return;
		1505
		1506	my $pl = cf::player::load_pl $f
		1507	or return;
		1508
		1509	local $cf::PLAYER_LOADING{$login} = $pl;
		1510	$f->resolve_delayed_derefs;
1127	$cf::PLAYER{$login} = $pl	1511	$cf::PLAYER{$login} = $pl
1128	}	1512	}
1129	}	1513	}
1130	}	1514	}
1131		1515
…		…
1137	my $path = path $pl;	1521	my $path = path $pl;
1138	my $guard = cf::lock_acquire "user_save:$path";	1522	my $guard = cf::lock_acquire "user_save:$path";
1139		1523
1140	return if $pl->{deny_save};	1524	return if $pl->{deny_save};
1141		1525
1142	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1526	aio_mkdir playerdir $pl, 0770;
1143	$pl->{last_save} = $cf::RUNTIME;	1527	$pl->{last_save} = $cf::RUNTIME;
1144		1528
		1529	cf::get_slot 0.01;
		1530
1145	$pl->save_pl ($path);	1531	$pl->save_pl ($path);
1146	Coro::cede;	1532	cf::cede_to_tick;
1147	}	1533	}
1148		1534
1149	sub new($) {	1535	sub new($) {
1150	my ($login) = @_;	1536	my ($login) = @_;
1151		1537
…		…
1157	$cf::PLAYER{$login} = $self;	1543	$cf::PLAYER{$login} = $self;
1158		1544
1159	$self	1545	$self
1160	}	1546	}
1161		1547
		1548	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1549
		1550	=cut
		1551
		1552	sub send_msg {
		1553	my $ns = shift->ns
		1554	or return;
		1555	$ns->send_msg (@_);
		1556	}
		1557
		1558	=item $pl->quit_character
		1559
		1560	Nukes the player without looking back. If logged in, the connection will
		1561	be destroyed. May block for a long time.
		1562
		1563	=cut
		1564
1162	sub quit_character {	1565	sub quit_character {
1163	my ($pl) = @_;	1566	my ($pl) = @_;
1164		1567
		1568	my $name = $pl->ob->name;
		1569
1165	$pl->{deny_save} = 1;	1570	$pl->{deny_save} = 1;
1166	$pl->password ("*"); # this should lock out the player until we nuked the dir	1571	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1167		1572
1168	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1573	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1169	$pl->deactivate;	1574	$pl->deactivate;
		1575	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1576	$pl->ob->check_score;
1170	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1577	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1171	$pl->ns->destroy if $pl->ns;	1578	$pl->ns->destroy if $pl->ns;
1172		1579
1173	my $path = playerdir $pl;	1580	my $path = playerdir $pl;
1174	my $temp = "$path~$cf::RUNTIME~deleting~";	1581	my $temp = "$path~$cf::RUNTIME~deleting~";
1175	Coro::AIO::aio_rename $path, $temp;	1582	aio_rename $path, $temp;
1176	delete $cf::PLAYER{$pl->ob->name};	1583	delete $cf::PLAYER{$pl->ob->name};
1177	$pl->destroy;	1584	$pl->destroy;
		1585
		1586	my $prefix = qr<^~\Q$name\E/>;
		1587
		1588	# nuke player maps
		1589	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1590
1178	IO::AIO::aio_rmtree $temp;	1591	IO::AIO::aio_rmtree $temp;
1179	}	1592	}
1180		1593
		1594	=item $pl->kick
		1595
		1596	Kicks a player out of the game. This destroys the connection.
		1597
		1598	=cut
		1599
		1600	sub kick {
		1601	my ($pl, $kicker) = @_;
		1602
		1603	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1604	$pl->killer ("kicked");
		1605	$pl->ns->destroy;
		1606	}
		1607
		1608	=item cf::player::list_logins
		1609
		1610	Returns am arrayref of all valid playernames in the system, can take a
		1611	while and may block, so not sync_job-capable, ever.
		1612
		1613	=cut
		1614
		1615	sub list_logins {
		1616	my $dirs = aio_readdir $PLAYERDIR
		1617	or return [];
		1618
		1619	my @logins;
		1620
		1621	for my $login (@$dirs) {
		1622	my $path = path $login;
		1623
		1624	# a .pst is a dead give-away for a valid player
		1625	# if no pst file found, open and chekc for blocked users
		1626	if (aio_stat "$path.pst") {
		1627	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1628	aio_read $fh, 0, 512, my $buf, 0 or next;
		1629	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1630	}
		1631
		1632	utf8::decode $login;
		1633	push @logins, $login;
		1634	}
		1635
		1636	\@logins
		1637	}
		1638
		1639	=item $player->maps
		1640
		1641	Returns an arrayref of map paths that are private for this
		1642	player. May block.
		1643
		1644	=cut
		1645
		1646	sub maps($) {
		1647	my ($pl) = @_;
		1648
		1649	$pl = ref $pl ? $pl->ob->name : $pl;
		1650
		1651	my $files = aio_readdir playerdir $pl
		1652	or return;
		1653
		1654	my @paths;
		1655
		1656	for (@$files) {
		1657	utf8::decode $_;
		1658	next if /\.(?:pl|pst)$/;
		1659	next unless /^$PATH_SEP/o;
		1660
		1661	push @paths, cf::map::normalise "~$pl/$_";
		1662	}
		1663
		1664	\@paths
		1665	}
		1666
		1667	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1668
		1669	Expand deliantra pod fragments into protocol xml.
		1670
1181	=item $player->ext_reply ($msgid, $msgtype, %msg)	1671	=item $player->ext_reply ($msgid, @msg)
1182		1672
1183	Sends an ext reply to the player.	1673	Sends an ext reply to the player.
1184		1674
1185	=cut	1675	=cut
1186		1676
1187	sub ext_reply($$$%) {	1677	sub ext_reply($$@) {
1188	my ($self, $id, %msg) = @_;	1678	my ($self, $id, @msg) = @_;
1189		1679
1190	$msg{msgid} = $id;	1680	$self->ns->ext_reply ($id, @msg)
1191
1192	$self->send ("ext " . cf::to_json \%msg);
1193	}	1681	}
1194		1682
1195	package cf;	1683	=item $player->ext_msg ($type, @msg)
		1684
		1685	Sends an ext event to the client.
		1686
		1687	=cut
		1688
		1689	sub ext_msg($$@) {
		1690	my ($self, $type, @msg) = @_;
		1691
		1692	$self->ns->ext_msg ($type, @msg);
		1693	}
		1694
		1695	=head3 cf::region
		1696
		1697	=over 4
		1698
		1699	=cut
		1700
		1701	package cf::region;
		1702
		1703	=item cf::region::find_by_path $path
		1704
		1705	Tries to decuce the likely region for a map knowing only its path.
		1706
		1707	=cut
		1708
		1709	sub find_by_path($) {
		1710	my ($path) = @_;
		1711
		1712	my ($match, $specificity);
		1713
		1714	for my $region (list) {
		1715	if ($region->{match} && $path =~ $region->{match}) {
		1716	($match, $specificity) = ($region, $region->specificity)
		1717	if $region->specificity > $specificity;
		1718	}
		1719	}
		1720
		1721	$match
		1722	}
1196		1723
1197	=back	1724	=back
1198
1199		1725
1200	=head3 cf::map	1726	=head3 cf::map
1201		1727
1202	=over 4	1728	=over 4
1203		1729
…		…
1206	package cf::map;	1732	package cf::map;
1207		1733
1208	use Fcntl;	1734	use Fcntl;
1209	use Coro::AIO;	1735	use Coro::AIO;
1210		1736
		1737	use overload
		1738	'""' => \&as_string,
		1739	fallback => 1;
		1740
1211	our $MAX_RESET = 3600;	1741	our $MAX_RESET = 3600;
1212	our $DEFAULT_RESET = 3000;	1742	our $DEFAULT_RESET = 3000;
1213		1743
1214	sub generate_random_map {	1744	sub generate_random_map {
1215	my ($path, $rmp) = @_;	1745	my ($self, $rmp) = @_;
		1746
		1747	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1216		1748
1217	# mit "rum" bekleckern, nicht	1749	# mit "rum" bekleckern, nicht
1218	cf::map::_create_random_map	1750	$self->_create_random_map (
1219	$path,
1220	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1751	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1221	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1752	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1222	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1753	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1223	$rmp->{exit_on_final_map},	1754	$rmp->{exit_on_final_map},
1224	$rmp->{xsize}, $rmp->{ysize},	1755	$rmp->{xsize}, $rmp->{ysize},
1225	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1756	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1226	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1757	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1227	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1758	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1228	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1759	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1229	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1760	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1230	(cf::region::find $rmp->{region})	1761	(cf::region::find $rmp->{region}), $rmp->{custom}
		1762	)
		1763	}
		1764
		1765	=item cf::map->register ($regex, $prio)
		1766
		1767	Register a handler for the map path matching the given regex at the
		1768	givne priority (higher is better, built-in handlers have priority 0, the
		1769	default).
		1770
		1771	=cut
		1772
		1773	sub register {
		1774	my (undef, $regex, $prio) = @_;
		1775	my $pkg = caller;
		1776
		1777	no strict;
		1778	push @{"$pkg\::ISA"}, __PACKAGE__;
		1779
		1780	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1781	}
		1782
		1783	# also paths starting with '/'
		1784	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1785
		1786	sub thawer_merge {
		1787	my ($self, $merge) = @_;
		1788
		1789	# we have to keep some variables in memory intact
		1790	local $self->{path};
		1791	local $self->{load_path};
		1792
		1793	$self->SUPER::thawer_merge ($merge);
		1794	}
		1795
		1796	sub normalise {
		1797	my ($path, $base) = @_;
		1798
		1799	$path = "$path"; # make sure its a string
		1800
		1801	$path =~ s/\.map$//;
		1802
		1803	# map plan:
		1804	#
		1805	# /! non-realised random map exit (special hack!)
		1806	# {... are special paths that are not being touched
		1807	# ?xxx/... are special absolute paths
		1808	# ?random/... random maps
		1809	# /... normal maps
		1810	# ~user/... per-player map of a specific user
		1811
		1812	$path =~ s/$PATH_SEP/\//go;
		1813
		1814	# treat it as relative path if it starts with
		1815	# something that looks reasonable
		1816	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1817	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1818
		1819	$base =~ s{[^/]+/?$}{};
		1820	$path = "$base/$path";
		1821	}
		1822
		1823	for ($path) {
		1824	redo if s{//}{/};
		1825	redo if s{/\.?/}{/};
		1826	redo if s{/[^/]+/\.\./}{/};
		1827	}
		1828
		1829	$path
		1830	}
		1831
		1832	sub new_from_path {
		1833	my (undef, $path, $base) = @_;
		1834
		1835	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1836
		1837	$path = normalise $path, $base;
		1838
		1839	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1840	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1841	my $self = bless cf::map::new, $pkg;
		1842	$self->{path} = $path; $self->path ($path);
		1843	$self->init; # pass $1 etc.
		1844	return $self;
		1845	}
		1846	}
		1847
		1848	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1849	()
		1850	}
		1851
		1852	sub init {
		1853	my ($self) = @_;
		1854
		1855	$self
		1856	}
		1857
		1858	sub as_string {
		1859	my ($self) = @_;
		1860
		1861	"$self->{path}"
		1862	}
		1863
		1864	# the displayed name, this is a one way mapping
		1865	sub visible_name {
		1866	&as_string
		1867	}
		1868
		1869	# the original (read-only) location
		1870	sub load_path {
		1871	my ($self) = @_;
		1872
		1873	"$MAPDIR/$self->{path}.map"
		1874	}
		1875
		1876	# the temporary/swap location
		1877	sub save_path {
		1878	my ($self) = @_;
		1879
		1880	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1881	"$TMPDIR/$path.map"
		1882	}
		1883
		1884	# the unique path, undef == no special unique path
		1885	sub uniq_path {
		1886	my ($self) = @_;
		1887
		1888	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1889	"$UNIQUEDIR/$path"
1231	}	1890	}
1232		1891
1233	# and all this just because we cannot iterate over	1892	# and all this just because we cannot iterate over
1234	# all maps in C++...	1893	# all maps in C++...
1235	sub change_all_map_light {	1894	sub change_all_map_light {
…		…
1237		1896
1238	$_->change_map_light ($change)	1897	$_->change_map_light ($change)
1239	for grep $_->outdoor, values %cf::MAP;	1898	for grep $_->outdoor, values %cf::MAP;
1240	}	1899	}
1241		1900
		1901	sub decay_objects {
		1902	my ($self) = @_;
		1903
		1904	return if $self->{deny_reset};
		1905
		1906	$self->do_decay_objects;
		1907	}
		1908
		1909	sub unlink_save {
		1910	my ($self) = @_;
		1911
		1912	utf8::encode (my $save = $self->save_path);
		1913	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1914	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1915	}
		1916
1242	sub try_load_header($) {	1917	sub load_header_from($) {
1243	my ($path) = @_;	1918	my ($self, $path) = @_;
1244		1919
1245	utf8::encode $path;	1920	utf8::encode $path;
1246	aio_open $path, O_RDONLY, 0	1921	my $f = new_from_file cf::object::thawer $path
1247	or return;	1922	or return;
1248		1923
1249	my $map = cf::map::new	1924	$self->_load_header ($f)
1250	or return;	1925	or return;
1251		1926
1252	# for better error messages only, will be overwritten	1927	local $MAP_LOADING{$self->{path}} = $self;
1253	$map->path ($path);	1928	$f->resolve_delayed_derefs;
1254		1929
1255	$map->load_header ($path)	1930	$self->{load_path} = $path;
		1931
		1932	1
		1933	}
		1934
		1935	sub load_header_orig {
		1936	my ($self) = @_;
		1937
		1938	$self->load_header_from ($self->load_path)
		1939	}
		1940
		1941	sub load_header_temp {
		1942	my ($self) = @_;
		1943
		1944	$self->load_header_from ($self->save_path)
		1945	}
		1946
		1947	sub prepare_temp {
		1948	my ($self) = @_;
		1949
		1950	$self->last_access ((delete $self->{last_access})
		1951	|| $cf::RUNTIME); #d#
		1952	# safety
		1953	$self->{instantiate_time} = $cf::RUNTIME
		1954	if $self->{instantiate_time} > $cf::RUNTIME;
		1955	}
		1956
		1957	sub prepare_orig {
		1958	my ($self) = @_;
		1959
		1960	$self->{load_original} = 1;
		1961	$self->{instantiate_time} = $cf::RUNTIME;
		1962	$self->last_access ($cf::RUNTIME);
		1963	$self->instantiate;
		1964	}
		1965
		1966	sub load_header {
		1967	my ($self) = @_;
		1968
		1969	if ($self->load_header_temp) {
		1970	$self->prepare_temp;
		1971	} else {
		1972	$self->load_header_orig
1256	or return;	1973	or return;
		1974	$self->prepare_orig;
		1975	}
1257		1976
1258	$map->{load_path} = $path;	1977	$self->{deny_reset} = 1
		1978	if $self->no_reset;
1259		1979
1260	$map	1980	$self->default_region (cf::region::find_by_path $self->{path})
		1981	unless $self->default_region;
		1982
		1983	1
1261	}	1984	}
1262		1985
1263	sub find;	1986	sub find;
1264	sub find {	1987	sub find {
1265	my ($path, $origin) = @_;	1988	my ($path, $origin) = @_;
1266		1989
1267	#warn "find<$path,$origin>\n";#d#
1268
1269	$path = new cf::path $path, $origin && $origin->path;	1990	$path = normalise $path, $origin && $origin->path;
1270	my $key = $path->as_string;
1271		1991
		1992	cf::lock_wait "map_data:$path";#d#remove
1272	cf::lock_wait "map_find:$key";	1993	cf::lock_wait "map_find:$path";
1273		1994
1274	$cf::MAP{$key} || do {	1995	$cf::MAP{$path} || do {
		1996	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1275	my $guard = cf::lock_acquire "map_find:$key";	1997	my $guard2 = cf::lock_acquire "map_find:$path";
1276		1998
1277	# do it the slow way	1999	my $map = new_from_path cf::map $path
1278	my $map = try_load_header $path->save_path;
1279
1280	Coro::cede;
1281
1282	if ($map) {
1283	$map->last_access ((delete $map->{last_access})
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$map->{instantiate_time} = $cf::RUNTIME
1287	if $map->{instantiate_time} > $cf::RUNTIME;
1288	} else {
1289	if (my $rmp = $path->random_map_params) {
1290	$map = generate_random_map $key, $rmp;
1291	} else {
1292	$map = try_load_header $path->load_path;
1293	}
1294
1295	$map or return;	2000	or return;
1296		2001
1297	$map->{load_original} = 1;
1298	$map->{instantiate_time} = $cf::RUNTIME;
1299	$map->last_access ($cf::RUNTIME);
1300	$map->instantiate;
1301
1302	# per-player maps become, after loading, normal maps
1303	$map->per_player (0) if $path->{user_rel};
1304	}
1305
1306	$map->path ($key);
1307	$map->{path} = $path;
1308	$map->{last_save} = $cf::RUNTIME;	2002	$map->{last_save} = $cf::RUNTIME;
1309		2003
1310	Coro::cede;	2004	$map->load_header
		2005	or return;
1311		2006
1312	if ($map->should_reset) {	2007	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2008	# doing this can freeze the server in a sync job, obviously
		2009	#$cf::WAIT_FOR_TICK->wait;
		2010	undef $guard2;
		2011	undef $guard1;
1313	$map->reset;	2012	$map->reset;
1314	undef $guard;
1315	$map = find $path	2013	return find $path;
1316	or return;
1317	}	2014	}
1318		2015
1319	$cf::MAP{$key} = $map	2016	$cf::MAP{$path} = $map
1320	}	2017	}
1321	}	2018	}
		2019
		2020	sub pre_load { }
		2021	sub post_load { }
1322		2022
1323	sub load {	2023	sub load {
1324	my ($self) = @_;	2024	my ($self) = @_;
1325		2025
		2026	local $self->{deny_reset} = 1; # loading can take a long time
		2027
1326	my $path = $self->{path};	2028	my $path = $self->{path};
		2029
		2030	{
1327	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2031	my $guard = cf::lock_acquire "map_data:$path";
1328		2032
		2033	return unless $self->valid;
1329	return if $self->in_memory != cf::MAP_SWAPPED;	2034	return unless $self->in_memory == cf::MAP_SWAPPED;
1330		2035
1331	$self->in_memory (cf::MAP_LOADING);	2036	$self->in_memory (cf::MAP_LOADING);
1332		2037
1333	$self->alloc;	2038	$self->alloc;
1334	$self->load_objects ($self->{load_path}, 1)	2039
		2040	$self->pre_load;
		2041	cf::cede_to_tick;
		2042
		2043	my $f = new_from_file cf::object::thawer $self->{load_path};
		2044	$f->skip_block;
		2045	$self->_load_objects ($f)
1335	or return;	2046	or return;
1336		2047
1337	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2048	$self->post_load_original
1338	if delete $self->{load_original};	2049	if delete $self->{load_original};
1339		2050
1340	if (my $uniq = $path->uniq_path) {	2051	if (my $uniq = $self->uniq_path) {
1341	utf8::encode $uniq;	2052	utf8::encode $uniq;
1342	if (aio_open $uniq, O_RDONLY, 0) {	2053	unless (aio_stat $uniq) {
		2054	if (my $f = new_from_file cf::object::thawer $uniq) {
1343	$self->clear_unique_items;	2055	$self->clear_unique_items;
1344	$self->load_objects ($uniq, 0);	2056	$self->_load_objects ($f);
		2057	$f->resolve_delayed_derefs;
		2058	}
1345	}	2059	}
1346	}	2060	}
1347		2061
1348	Coro::cede;	2062	$f->resolve_delayed_derefs;
1349		2063
		2064	cf::cede_to_tick;
1350	# now do the right thing for maps	2065	# now do the right thing for maps
1351	$self->link_multipart_objects;	2066	$self->link_multipart_objects;
1352
1353	if ($self->{path}->is_style_map) {
1354	$self->{deny_save} = 1;
1355	$self->{deny_reset} = 1;
1356	} else {
1357	$self->fix_auto_apply;
1358	$self->decay_objects;
1359	$self->update_buttons;
1360	$self->set_darkness_map;
1361	$self->difficulty ($self->estimate_difficulty)	2067	$self->difficulty ($self->estimate_difficulty)
1362	unless $self->difficulty;	2068	unless $self->difficulty;
		2069	cf::cede_to_tick;
		2070
		2071	unless ($self->{deny_activate}) {
		2072	$self->decay_objects;
		2073	$self->fix_auto_apply;
		2074	$self->update_buttons;
		2075	cf::cede_to_tick;
		2076	$self->set_darkness_map;
		2077	cf::cede_to_tick;
1363	$self->activate;	2078	$self->activate;
1364	}	2079	}
1365		2080
1366	Coro::cede;	2081	$self->{last_save} = $cf::RUNTIME;
		2082	$self->last_access ($cf::RUNTIME);
1367		2083
1368	$self->in_memory (cf::MAP_IN_MEMORY);	2084	$self->in_memory (cf::MAP_ACTIVE);
		2085	}
		2086
		2087	$self->post_load;
		2088	}
		2089
		2090	sub customise_for {
		2091	my ($self, $ob) = @_;
		2092
		2093	return find "~" . $ob->name . "/" . $self->{path}
		2094	if $self->per_player;
		2095
		2096	# return find "?party/" . $ob->name . "/" . $self->{path}
		2097	# if $self->per_party;
		2098
		2099	$self
		2100	}
		2101
		2102	# find and load all maps in the 3x3 area around a map
		2103	sub load_neighbours {
		2104	my ($map) = @_;
		2105
		2106	my @neigh; # diagonal neighbours
		2107
		2108	for (0 .. 3) {
		2109	my $neigh = $map->tile_path ($_)
		2110	or next;
		2111	$neigh = find $neigh, $map
		2112	or next;
		2113	$neigh->load;
		2114
		2115	push @neigh,
		2116	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2117	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2118	}
		2119
		2120	for (grep defined $_->[0], @neigh) {
		2121	my ($path, $origin) = @$_;
		2122	my $neigh = find $path, $origin
		2123	or next;
		2124	$neigh->load;
		2125	}
1369	}	2126	}
1370		2127
1371	sub find_sync {	2128	sub find_sync {
1372	my ($path, $origin) = @_;	2129	my ($path, $origin) = @_;
1373		2130
1374	cf::sync_job { cf::map::find $path, $origin }	2131	cf::sync_job { find $path, $origin }
1375	}	2132	}
1376		2133
1377	sub do_load_sync {	2134	sub do_load_sync {
1378	my ($map) = @_;	2135	my ($map) = @_;
1379		2136
		2137	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2138	if $Coro::current == $Coro::main;
		2139
1380	cf::sync_job { $map->load };	2140	cf::sync_job { $map->load };
		2141	}
		2142
		2143	our %MAP_PREFETCH;
		2144	our $MAP_PREFETCHER = undef;
		2145
		2146	sub find_async {
		2147	my ($path, $origin, $load) = @_;
		2148
		2149	$path = normalise $path, $origin && $origin->{path};
		2150
		2151	if (my $map = $cf::MAP{$path}) {
		2152	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2153	}
		2154
		2155	$MAP_PREFETCH{$path} |= $load;
		2156
		2157	$MAP_PREFETCHER ||= cf::async {
		2158	$Coro::current->{desc} = "map prefetcher";
		2159
		2160	while (%MAP_PREFETCH) {
		2161	while (my ($k, $v) = each %MAP_PREFETCH) {
		2162	if (my $map = find $k) {
		2163	$map->load if $v;
		2164	}
		2165
		2166	delete $MAP_PREFETCH{$k};
		2167	}
		2168	}
		2169	undef $MAP_PREFETCHER;
		2170	};
		2171	$MAP_PREFETCHER->prio (6);
		2172
		2173	()
1381	}	2174	}
1382		2175
1383	sub save {	2176	sub save {
1384	my ($self) = @_;	2177	my ($self) = @_;
1385		2178
1386	my $lock = cf::lock_acquire "map_data:" . $self->path;	2179	my $lock = cf::lock_acquire "map_data:$self->{path}";
1387		2180
1388	$self->{last_save} = $cf::RUNTIME;	2181	$self->{last_save} = $cf::RUNTIME;
1389		2182
1390	return unless $self->dirty;	2183	return unless $self->dirty;
1391		2184
1392	my $save = $self->{path}->save_path; utf8::encode $save;	2185	my $save = $self->save_path; utf8::encode $save;
1393	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2186	my $uniq = $self->uniq_path; utf8::encode $uniq;
1394		2187
1395	$self->{load_path} = $save;	2188	$self->{load_path} = $save;
1396		2189
1397	return if $self->{deny_save};	2190	return if $self->{deny_save};
1398		2191
1399	local $self->{last_access} = $self->last_access;#d#	2192	local $self->{last_access} = $self->last_access;#d#
1400		2193
1401	cf::async {	2194	cf::async {
		2195	$Coro::current->{desc} = "map player save";
1402	$_->contr->save for $self->players;	2196	$_->contr->save for $self->players;
1403	};	2197	};
1404		2198
		2199	cf::get_slot 0.02;
		2200
1405	if ($uniq) {	2201	if ($uniq) {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2202	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1407	$self->save_objects ($uniq, cf::IO_UNIQUES);	2203	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1408	} else {	2204	} else {
1409	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2205	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1410	}	2206	}
1411	}	2207	}
1412		2208
1413	sub swap_out {	2209	sub swap_out {
1414	my ($self) = @_;	2210	my ($self) = @_;
1415		2211
1416	# save first because save cedes	2212	# save first because save cedes
1417	$self->save;	2213	$self->save;
1418		2214
1419	my $lock = cf::lock_acquire "map_data:" . $self->path;	2215	my $lock = cf::lock_acquire "map_data:$self->{path}";
1420		2216
1421	return if $self->players;	2217	return if $self->players;
1422	return if $self->in_memory != cf::MAP_IN_MEMORY;	2218	return if $self->in_memory != cf::MAP_ACTIVE;
1423	return if $self->{deny_save};	2219	return if $self->{deny_save};
1424		2220
		2221	$self->in_memory (cf::MAP_SWAPPED);
		2222
		2223	$self->deactivate;
		2224	$_->clear_links_to ($self) for values %cf::MAP;
1425	$self->clear;	2225	$self->clear;
1426	$self->in_memory (cf::MAP_SWAPPED);
1427	}	2226	}
1428		2227
1429	sub reset_at {	2228	sub reset_at {
1430	my ($self) = @_;	2229	my ($self) = @_;
1431		2230
1432	# TODO: safety, remove and allow resettable per-player maps	2231	# TODO: safety, remove and allow resettable per-player maps
1433	return 1e99 if $self->{path}{user_rel};
1434	return 1e99 if $self->{deny_reset};	2232	return 1e99 if $self->{deny_reset};
1435		2233
1436	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2234	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1437	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2235	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1438		2236
…		…
1443	my ($self) = @_;	2241	my ($self) = @_;
1444		2242
1445	$self->reset_at <= $cf::RUNTIME	2243	$self->reset_at <= $cf::RUNTIME
1446	}	2244	}
1447		2245
1448	sub unlink_save {
1449	my ($self) = @_;
1450
1451	utf8::encode (my $save = $self->{path}->save_path);
1452	aioreq_pri 3; IO::AIO::aio_unlink $save;
1453	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1454	}
1455
1456	sub rename {
1457	my ($self, $new_path) = @_;
1458
1459	$self->unlink_save;
1460
1461	delete $cf::MAP{$self->path};
1462	$self->{path} = new cf::path $new_path;
1463	$self->path ($self->{path}->as_string);
1464	$cf::MAP{$self->path} = $self;
1465
1466	$self->save;
1467	}
1468
1469	sub reset {	2246	sub reset {
1470	my ($self) = @_;	2247	my ($self) = @_;
1471		2248
1472	my $lock = cf::lock_acquire "map_data:" . $self->path;	2249	my $lock = cf::lock_acquire "map_data:$self->{path}";
1473		2250
1474	return if $self->players;	2251	return if $self->players;
1475	return if $self->{path}{user_rel};#d#
1476		2252
1477	warn "resetting map ", $self->path;#d#	2253	warn "resetting map ", $self->path;
		2254
		2255	$self->in_memory (cf::MAP_SWAPPED);
		2256
		2257	# need to save uniques path
		2258	unless ($self->{deny_save}) {
		2259	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2260
		2261	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2262	if $uniq;
		2263	}
1478		2264
1479	delete $cf::MAP{$self->path};	2265	delete $cf::MAP{$self->path};
1480		2266
		2267	$self->deactivate;
1481	$_->clear_links_to ($self) for values %cf::MAP;	2268	$_->clear_links_to ($self) for values %cf::MAP;
		2269	$self->clear;
1482		2270
1483	$self->unlink_save;	2271	$self->unlink_save;
1484	$self->destroy;	2272	$self->destroy;
1485	}	2273	}
1486		2274
1487	my $nuke_counter = "aaaa";	2275	my $nuke_counter = "aaaa";
1488		2276
1489	sub nuke {	2277	sub nuke {
1490	my ($self) = @_;	2278	my ($self) = @_;
1491		2279
		2280	{
		2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2282
		2283	delete $cf::MAP{$self->path};
		2284
		2285	$self->unlink_save;
		2286
		2287	bless $self, "cf::map";
		2288	delete $self->{deny_reset};
1492	$self->{deny_save} = 1;	2289	$self->{deny_save} = 1;
1493	$self->reset_timeout (1);	2290	$self->reset_timeout (1);
1494	$self->rename ("{nuke}/" . ($nuke_counter++));	2291	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2292
		2293	$cf::MAP{$self->path} = $self;
		2294	}
		2295
1495	$self->reset; # polite request, might not happen	2296	$self->reset; # polite request, might not happen
1496	}	2297	}
1497		2298
1498	sub customise_for {	2299	=item $maps = cf::map::tmp_maps
1499	my ($map, $ob) = @_;
1500		2300
1501	if ($map->per_player) {	2301	Returns an arrayref with all map paths of currently instantiated and saved
1502	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2302	maps. May block.
		2303
		2304	=cut
		2305
		2306	sub tmp_maps() {
1503	}	2307	[
1504		2308	map {
1505	$map	2309	utf8::decode $_;
		2310	/\.map$/
		2311	? normalise $_
		2312	: ()
		2313	} @{ aio_readdir $TMPDIR or [] }
		2314	]
1506	}	2315	}
1507		2316
1508	sub emergency_save {	2317	=item $maps = cf::map::random_maps
1509	my $freeze_guard = cf::freeze_mainloop;
1510		2318
1511	warn "enter emergency perl save\n";	2319	Returns an arrayref with all map paths of currently instantiated and saved
		2320	random maps. May block.
1512		2321
1513	cf::sync_job {	2322	=cut
1514	warn "begin emergency player save\n";
1515	$_->save for values %cf::PLAYER;
1516	warn "end emergency player save\n";
1517		2323
1518	warn "begin emergency map save\n";	2324	sub random_maps() {
1519	$_->save for values %cf::MAP;	2325	[
1520	warn "end emergency map save\n";	2326	map {
		2327	utf8::decode $_;
		2328	/\.map$/
		2329	? normalise "?random/$_"
		2330	: ()
		2331	} @{ aio_readdir $RANDOMDIR or [] }
		2332	]
		2333	}
		2334
		2335	=item cf::map::unique_maps
		2336
		2337	Returns an arrayref of paths of all shared maps that have
		2338	instantiated unique items. May block.
		2339
		2340	=cut
		2341
		2342	sub unique_maps() {
		2343	[
		2344	map {
		2345	utf8::decode $_;
		2346	s/\.map$//; # TODO future compatibility hack
		2347	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2348	? ()
		2349	: normalise $_
		2350	} @{ aio_readdir $UNIQUEDIR or [] }
		2351	]
		2352	}
		2353
		2354	=back
		2355
		2356	=head3 cf::object
		2357
		2358	=cut
		2359
		2360	package cf::object;
		2361
		2362	=over 4
		2363
		2364	=item $ob->inv_recursive
		2365
		2366	Returns the inventory of the object I<and> their inventories, recursively,
		2367	but I<not> the object itself.
		2368
		2369	=cut
		2370
		2371	sub inv_recursive_;
		2372	sub inv_recursive_ {
		2373	map { $_, inv_recursive_ $_->inv } @_
		2374	}
		2375
		2376	sub inv_recursive {
		2377	inv_recursive_ inv $_[0]
		2378	}
		2379
		2380	=item $ref = $ob->ref
		2381
		2382	Creates and returns a persistent reference to an object that can be stored as a string.
		2383
		2384	=item $ob = cf::object::deref ($refstring)
		2385
		2386	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2387	even if the object actually exists. May block.
		2388
		2389	=cut
		2390
		2391	sub deref {
		2392	my ($ref) = @_;
		2393
		2394	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2395	my ($uuid, $name) = ($1, $2);
		2396	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2397	or return;
		2398	$pl->ob->uuid eq $uuid
		2399	or return;
		2400
		2401	$pl->ob
		2402	} else {
		2403	warn "$ref: cannot resolve object reference\n";
		2404	undef
1521	};	2405	}
1522
1523	warn "leave emergency perl save\n";
1524	}	2406	}
1525		2407
1526	package cf;	2408	package cf;
1527		2409
1528	=back	2410	=back
1529
1530		2411
1531	=head3 cf::object::player	2412	=head3 cf::object::player
1532		2413
1533	=over 4	2414	=over 4
1534		2415
…		…
1537	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2418	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1538	can be C<undef>. Does the right thing when the player is currently in a	2419	can be C<undef>. Does the right thing when the player is currently in a
1539	dialogue with the given NPC character.	2420	dialogue with the given NPC character.
1540		2421
1541	=cut	2422	=cut
		2423
		2424	our $SAY_CHANNEL = {
		2425	id => "say",
		2426	title => "Map",
		2427	reply => "say ",
		2428	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2429	};
		2430
		2431	our $CHAT_CHANNEL = {
		2432	id => "chat",
		2433	title => "Chat",
		2434	reply => "chat ",
		2435	tooltip => "Player chat and shouts, global to the server.",
		2436	};
1542		2437
1543	# rough implementation of a future "reply" method that works	2438	# rough implementation of a future "reply" method that works
1544	# with dialog boxes.	2439	# with dialog boxes.
1545	#TODO: the first argument must go, split into a $npc->reply_to ( method	2440	#TODO: the first argument must go, split into a $npc->reply_to ( method
1546	sub cf::object::player::reply($$$;$) {	2441	sub cf::object::player::reply($$$;$) {
…		…
1548		2443
1549	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1550		2445
1551	if ($self->{record_replies}) {	2446	if ($self->{record_replies}) {
1552	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2448
1553	} else {	2449	} else {
		2450	my $pl = $self->contr;
		2451
		2452	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2453	my $dialog = $pl->{npc_dialog};
		2454	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2455
		2456	} else {
1554	$msg = $npc->name . " says: $msg" if $npc;	2457	$msg = $npc->name . " says: $msg" if $npc;
1555	$self->message ($msg, $flags);	2458	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2459	}
1556	}	2460	}
		2461	}
		2462
		2463	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2464
		2465	=cut
		2466
		2467	sub cf::object::send_msg {
		2468	my $pl = shift->contr
		2469	or return;
		2470	$pl->send_msg (@_);
1557	}	2471	}
1558		2472
1559	=item $player_object->may ("access")	2473	=item $player_object->may ("access")
1560		2474
1561	Returns wether the given player is authorized to access resource "access"	2475	Returns wether the given player is authorized to access resource "access"
…		…
1574		2488
1575	=item $player_object->enter_link	2489	=item $player_object->enter_link
1576		2490
1577	Freezes the player and moves him/her to a special map (C<{link}>).	2491	Freezes the player and moves him/her to a special map (C<{link}>).
1578		2492
1579	The player should be reaosnably safe there for short amounts of time. You	2493	The player should be reasonably safe there for short amounts of time (e.g.
1580	I<MUST> call C<leave_link> as soon as possible, though.	2494	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2495	though, as the palyer cannot control the character while it is on the link
		2496	map.
		2497
		2498	Will never block.
1581		2499
1582	=item $player_object->leave_link ($map, $x, $y)	2500	=item $player_object->leave_link ($map, $x, $y)
1583		2501
1584	Moves the player out of the specila link map onto the given map. If the	2502	Moves the player out of the special C<{link}> map onto the specified
1585	map is not valid (or omitted), the player will be moved back to the	2503	map. If the map is not valid (or omitted), the player will be moved back
1586	location he/she was before the call to C<enter_link>, or, if that fails,	2504	to the location he/she was before the call to C<enter_link>, or, if that
1587	to the emergency map position.	2505	fails, to the emergency map position.
1588		2506
1589	Might block.	2507	Might block.
1590		2508
1591	=cut	2509	=cut
		2510
		2511	sub link_map {
		2512	unless ($LINK_MAP) {
		2513	$LINK_MAP = cf::map::find "{link}"
		2514	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2515	$LINK_MAP->load;
		2516	}
		2517
		2518	$LINK_MAP
		2519	}
1592		2520
1593	sub cf::object::player::enter_link {	2521	sub cf::object::player::enter_link {
1594	my ($self) = @_;	2522	my ($self) = @_;
1595		2523
1596	$self->deactivate_recursive;	2524	$self->deactivate_recursive;
1597		2525
1598	return if $self->map == $LINK_MAP;	2526	return if UNIVERSAL::isa $self->map, "ext::map_link";
1599		2527
1600	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2528	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1601	if $self->map;	2529	if $self->map && $self->map->{path} ne "{link}";
1602		2530
1603	$self->enter_map ($LINK_MAP, 20, 20);	2531	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1604	}	2532	}
1605		2533
1606	sub cf::object::player::leave_link {	2534	sub cf::object::player::leave_link {
1607	my ($self, $map, $x, $y) = @_;	2535	my ($self, $map, $x, $y) = @_;
		2536
		2537	return unless $self->contr->active;
1608		2538
1609	my $link_pos = delete $self->{_link_pos};	2539	my $link_pos = delete $self->{_link_pos};
1610		2540
1611	unless ($map) {	2541	unless ($map) {
1612	# restore original map position	2542	# restore original map position
…		…
1626	# use -1 or undef as default coordinates, not 0, 0	2556	# use -1 or undef as default coordinates, not 0, 0
1627	($x, $y) = ($map->enter_x, $map->enter_y)	2557	($x, $y) = ($map->enter_x, $map->enter_y)
1628	if $x <=0 && $y <= 0;	2558	if $x <=0 && $y <= 0;
1629		2559
1630	$map->load;	2560	$map->load;
		2561	$map->load_neighbours;
1631		2562
1632	return unless $self->contr->active;	2563	return unless $self->contr->active;
		2564	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1633	$self->activate_recursive;	2565	$self->activate_recursive;
		2566
		2567	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1634	$self->enter_map ($map, $x, $y);	2568	$self->enter_map ($map, $x, $y);
1635	}	2569	}
1636		2570
1637	cf::player->attach (	2571	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1638	on_logout => sub {
1639	my ($pl) = @_;
1640		2572
1641	# abort map switching before logout	2573	Moves the player to the given map-path and coordinates by first freezing
1642	if ($pl->ob->{_link_pos}) {	2574	her, loading and preparing them map, calling the provided $check callback
1643	cf::sync_job {	2575	that has to return the map if sucecssful, and then unfreezes the player on
1644	$pl->ob->leave_link	2576	the new (success) or old (failed) map position. In either case, $done will
1645	};	2577	be called at the end of this process.
1646	}
1647	},
1648	on_login => sub {
1649	my ($pl) = @_;
1650		2578
1651	# try to abort aborted map switching on player login :)	2579	Note that $check will be called with a potentially non-loaded map, so if
1652	# should happen only on crashes	2580	it needs a loaded map it has to call C<< ->load >>.
1653	if ($pl->ob->{_link_pos}) {
1654	$pl->ob->enter_link;
1655	(async {
1656	# we need this sleep as the login has a concurrent enter_exit running
1657	# and this sleep increases chances of the player not ending up in scorn
1658	$pl->ob->reply (undef,
1659	"There was an internal problem at your last logout, "
1660	. "the server will try to bring you to your intended destination in a second.",
1661	cf::NDI_RED);
1662	Coro::Timer::sleep 1;
1663	$pl->ob->leave_link;
1664	})->prio (2);
1665	}
1666	},
1667	);
1668		2581
1669	=item $player_object->goto ($path, $x, $y)
1670
1671	=cut	2582	=cut
		2583
		2584	our $GOTOGEN;
1672		2585
1673	sub cf::object::player::goto {	2586	sub cf::object::player::goto {
1674	my ($self, $path, $x, $y) = @_;	2587	my ($self, $path, $x, $y, $check, $done) = @_;
		2588
		2589	# do generation counting so two concurrent goto's will be executed in-order
		2590	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1675		2591
1676	$self->enter_link;	2592	$self->enter_link;
1677		2593
1678	(async {	2594	(async {
1679	$path = new cf::path $path;	2595	$Coro::current->{desc} = "player::goto $path $x $y";
1680		2596
1681	my $map = cf::map::find $path->as_string;	2597	# *tag paths override both path and x|y
		2598	if ($path =~ /^\*(.*)$/) {
		2599	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2600	my $ob = $obs[rand @obs];
		2601
		2602	# see if we actually can go there
		2603	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2604	$ob = $obs[rand @obs];
		2605	} else {
		2606	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2607	}
		2608	# else put us there anyways for now #d#
		2609
		2610	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2611	} else {
		2612	($path, $x, $y) = (undef, undef, undef);
		2613	}
		2614	}
		2615
		2616	my $map = eval {
		2617	my $map = defined $path ? cf::map::find $path : undef;
		2618
		2619	if ($map) {
1682	$map = $map->customise_for ($self) if $map;	2620	$map = $map->customise_for ($self);
1683		2621	$map = $check->($map) if $check && $map;
1684	# warn "entering ", $map->path, " at ($x, $y)\n"	2622	} else {
1685	# if $map;
1686
1687	$map or $map->cluck ("oy");#d#
1688	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2623	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	}
1689		2625
		2626	$map
		2627	};
		2628
		2629	if ($@) {
		2630	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	LOG llevError | logBacktrace, Carp::longmess $@;
		2632	}
		2633
		2634	if ($gen == $self->{_goto_generation}) {
		2635	delete $self->{_goto_generation};
1690	$self->leave_link ($map, $x, $y);	2636	$self->leave_link ($map, $x, $y);
		2637	}
		2638
		2639	$done->() if $done;
1691	})->prio (1);	2640	})->prio (1);
1692	}	2641	}
1693		2642
1694	=item $player_object->enter_exit ($exit_object)	2643	=item $player_object->enter_exit ($exit_object)
1695		2644
…		…
1697		2646
1698	sub parse_random_map_params {	2647	sub parse_random_map_params {
1699	my ($spec) = @_;	2648	my ($spec) = @_;
1700		2649
1701	my $rmp = { # defaults	2650	my $rmp = { # defaults
1702	xsize => 10,	2651	xsize => (cf::rndm 15, 40),
1703	ysize => 10,	2652	ysize => (cf::rndm 15, 40),
		2653	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2654	#layout => string,
1704	};	2655	};
1705		2656
1706	for (split /\n/, $spec) {	2657	for (split /\n/, $spec) {
1707	my ($k, $v) = split /\s+/, $_, 2;	2658	my ($k, $v) = split /\s+/, $_, 2;
1708		2659
…		…
1720	# that depends on the exit object	2671	# that depends on the exit object
1721		2672
1722	my $rmp = parse_random_map_params $exit->msg;	2673	my $rmp = parse_random_map_params $exit->msg;
1723		2674
1724	if ($exit->map) {	2675	if ($exit->map) {
1725	$rmp->{region} = $exit->map->region_name;	2676	$rmp->{region} = $exit->region->name;
1726	$rmp->{origin_map} = $exit->map->path;	2677	$rmp->{origin_map} = $exit->map->path;
1727	$rmp->{origin_x} = $exit->x;	2678	$rmp->{origin_x} = $exit->x;
1728	$rmp->{origin_y} = $exit->y;	2679	$rmp->{origin_y} = $exit->y;
		2680
		2681	$exit->map->touch;
1729	}	2682	}
1730		2683
1731	$rmp->{random_seed} ||= $exit->random_seed;	2684	$rmp->{random_seed} ||= $exit->random_seed;
1732		2685
1733	my $data = cf::to_json $rmp;	2686	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1734	my $md5 = Digest::MD5::md5_hex $data;	2687	my $md5 = Digest::MD5::md5_hex $data;
		2688	my $meta = "$RANDOMDIR/$md5.meta";
1735		2689
1736	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2690	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1737	aio_write $fh, 0, (length $data), $data, 0;	2691	aio_write $fh, 0, (length $data), $data, 0;
		2692	undef $fh;
		2693	aio_rename "$meta~", $meta;
1738		2694
		2695	my $slaying = "?random/$md5";
		2696
		2697	if ($exit->valid) {
1739	$exit->slaying ("?random/$md5");	2698	$exit->slaying ("?random/$md5");
1740	$exit->msg (undef);	2699	$exit->msg (undef);
		2700	}
1741	}	2701	}
1742	}	2702	}
1743		2703
1744	sub cf::object::player::enter_exit {	2704	sub cf::object::player::enter_exit {
1745	my ($self, $exit) = @_;	2705	my ($self, $exit) = @_;
…		…
1747	return unless $self->type == cf::PLAYER;	2707	return unless $self->type == cf::PLAYER;
1748		2708
1749	$self->enter_link;	2709	$self->enter_link;
1750		2710
1751	(async {	2711	(async {
1752	$self->deactivate_recursive; # just to be sure	2712	$Coro::current->{desc} = "enter_exit";
		2713
1753	unless (eval {	2714	unless (eval {
		2715	$self->deactivate_recursive; # just to be sure
		2716
		2717	# random map handling
		2718	{
		2719	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2720
1754	prepare_random_map $exit	2721	prepare_random_map $exit
1755	if $exit->slaying eq "/!";	2722	if $exit->slaying eq "/!";
		2723	}
1756		2724
1757	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2725	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1758	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2726	my $x = $exit->stats->hp;
		2727	my $y = $exit->stats->sp;
1759		2728
		2729	$self->goto ($map, $x, $y);
		2730
		2731	# if exit is damned, update players death & WoR home-position
		2732	$self->contr->savebed ($map, $x, $y)
		2733	if $exit->flag (cf::FLAG_DAMNED);
		2734
1760	1;	2735	1
1761	}) {	2736	}) {
1762	$self->message ("Something went wrong deep within the crossfire server. "	2737	$self->message ("Something went wrong deep within the deliantra server. "
1763	. "I'll try to bring you back to the map you were before. "	2738	. "I'll try to bring you back to the map you were before. "
1764	. "Please report this to the dungeon master",	2739	. "Please report this to the dungeon master!",
1765	cf::NDI_UNIQUE | cf::NDI_RED);	2740	cf::NDI_UNIQUE | cf::NDI_RED);
1766		2741
1767	warn "ERROR in enter_exit: $@";	2742	warn "ERROR in enter_exit: $@";
1768	$self->leave_link;	2743	$self->leave_link;
1769	}	2744	}
1770	})->prio (1);	2745	})->prio (1);
…		…
1783		2758
1784	sub cf::client::send_drawinfo {	2759	sub cf::client::send_drawinfo {
1785	my ($self, $text, $flags) = @_;	2760	my ($self, $text, $flags) = @_;
1786		2761
1787	utf8::encode $text;	2762	utf8::encode $text;
1788	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2763	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1789	}	2764	}
1790		2765
		2766	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2767
		2768	Send a drawinfo or msg packet to the client, formatting the msg for the
		2769	client if neccessary. C<$type> should be a string identifying the type of
		2770	the message, with C<log> being the default. If C<$color> is negative, suppress
		2771	the message unless the client supports the msg packet.
		2772
		2773	=cut
		2774
		2775	# non-persistent channels (usually the info channel)
		2776	our %CHANNEL = (
		2777	"c/identify" => {
		2778	id => "infobox",
		2779	title => "Identify",
		2780	reply => undef,
		2781	tooltip => "Items recently identified",
		2782	},
		2783	"c/examine" => {
		2784	id => "infobox",
		2785	title => "Examine",
		2786	reply => undef,
		2787	tooltip => "Signs and other items you examined",
		2788	},
		2789	"c/book" => {
		2790	id => "infobox",
		2791	title => "Book",
		2792	reply => undef,
		2793	tooltip => "The contents of a note or book",
		2794	},
		2795	"c/lookat" => {
		2796	id => "infobox",
		2797	title => "Look",
		2798	reply => undef,
		2799	tooltip => "What you saw there",
		2800	},
		2801	"c/who" => {
		2802	id => "infobox",
		2803	title => "Players",
		2804	reply => undef,
		2805	tooltip => "Shows players who are currently online",
		2806	},
		2807	"c/body" => {
		2808	id => "infobox",
		2809	title => "Body Parts",
		2810	reply => undef,
		2811	tooltip => "Shows which body parts you posess and are available",
		2812	},
		2813	"c/skills" => {
		2814	id => "infobox",
		2815	title => "Skills",
		2816	reply => undef,
		2817	tooltip => "Shows your experience per skill and item power",
		2818	},
		2819	"c/uptime" => {
		2820	id => "infobox",
		2821	title => "Uptime",
		2822	reply => undef,
		2823	tooltip => "How long the server has been running since last restart",
		2824	},
		2825	"c/mapinfo" => {
		2826	id => "infobox",
		2827	title => "Map Info",
		2828	reply => undef,
		2829	tooltip => "Information related to the maps",
		2830	},
		2831	"c/party" => {
		2832	id => "party",
		2833	title => "Party",
		2834	reply => "gsay ",
		2835	tooltip => "Messages and chat related to your party",
		2836	},
		2837	);
		2838
		2839	sub cf::client::send_msg {
		2840	my ($self, $channel, $msg, $color, @extra) = @_;
		2841
		2842	$msg = $self->pl->expand_cfpod ($msg)
		2843	unless $color & cf::NDI_VERBATIM;
		2844
		2845	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2846
		2847	# check predefined channels, for the benefit of C
		2848	if ($CHANNEL{$channel}) {
		2849	$channel = $CHANNEL{$channel};
		2850
		2851	$self->ext_msg (channel_info => $channel)
		2852	if $self->can_msg;
		2853
		2854	$channel = $channel->{id};
		2855
		2856	} elsif (ref $channel) {
		2857	# send meta info to client, if not yet sent
		2858	unless (exists $self->{channel}{$channel->{id}}) {
		2859	$self->{channel}{$channel->{id}} = $channel;
		2860	$self->ext_msg (channel_info => $channel)
		2861	if $self->can_msg;
		2862	}
		2863
		2864	$channel = $channel->{id};
		2865	}
		2866
		2867	return unless @extra || length $msg;
		2868
		2869	if ($self->can_msg) {
		2870	# default colour, mask it out
		2871	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2872	if $color & cf::NDI_DEF;
		2873
		2874	my $pkt = "msg "
		2875	. $self->{json_coder}->encode (
		2876	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2877	);
		2878
		2879	# try lzf for large packets
		2880	$pkt = "lzf " . Compress::LZF::compress $pkt
		2881	if 1024 <= length $pkt and $self->{can_lzf};
		2882
		2883	# split very large packets
		2884	if (8192 < length $pkt and $self->{can_lzf}) {
		2885	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2886	$pkt = "frag";
		2887	}
		2888
		2889	$self->send_packet ($pkt);
		2890	} else {
		2891	if ($color >= 0) {
		2892	# replace some tags by gcfclient-compatible ones
		2893	for ($msg) {
		2894	1 while
		2895	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2896	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2897	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2898	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2899	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2900	}
		2901
		2902	$color &= cf::NDI_COLOR_MASK;
		2903
		2904	utf8::encode $msg;
		2905
		2906	if (0 && $msg =~ /\[/) {
		2907	# COMMAND/INFO
		2908	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2909	} else {
		2910	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2911	$self->send_packet ("drawinfo $color $msg")
		2912	}
		2913	}
		2914	}
		2915	}
		2916
		2917	=item $client->ext_msg ($type, @msg)
		2918
		2919	Sends an ext event to the client.
		2920
		2921	=cut
		2922
		2923	sub cf::client::ext_msg($$@) {
		2924	my ($self, $type, @msg) = @_;
		2925
		2926	if ($self->extcmd == 2) {
		2927	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2928	} elsif ($self->extcmd == 1) { # TODO: remove
		2929	push @msg, msgtype => "event_$type";
		2930	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2931	}
		2932	}
		2933
		2934	=item $client->ext_reply ($msgid, @msg)
		2935
		2936	Sends an ext reply to the client.
		2937
		2938	=cut
		2939
		2940	sub cf::client::ext_reply($$@) {
		2941	my ($self, $id, @msg) = @_;
		2942
		2943	if ($self->extcmd == 2) {
		2944	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2945	} elsif ($self->extcmd == 1) {
		2946	#TODO: version 1, remove
		2947	unshift @msg, msgtype => "reply", msgid => $id;
		2948	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2949	}
		2950	}
1791		2951
1792	=item $success = $client->query ($flags, "text", \&cb)	2952	=item $success = $client->query ($flags, "text", \&cb)
1793		2953
1794	Queues a query to the client, calling the given callback with	2954	Queues a query to the client, calling the given callback with
1795	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2955	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1796	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2956	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1797		2957
1798	Queries can fail, so check the return code. Or don't, as queries will become	2958	Queries can fail, so check the return code. Or don't, as queries will
1799	reliable at some point in the future.	2959	become reliable at some point in the future.
1800		2960
1801	=cut	2961	=cut
1802		2962
1803	sub cf::client::query {	2963	sub cf::client::query {
1804	my ($self, $flags, $text, $cb) = @_;	2964	my ($self, $flags, $text, $cb) = @_;
…		…
1812	utf8::encode $text;	2972	utf8::encode $text;
1813	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2973	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1814		2974
1815	$self->send_packet ($self->{query_queue}[0][0])	2975	$self->send_packet ($self->{query_queue}[0][0])
1816	if @{ $self->{query_queue} } == 1;	2976	if @{ $self->{query_queue} } == 1;
		2977
		2978	1
1817	}	2979	}
1818		2980
1819	cf::client->attach (	2981	cf::client->attach (
		2982	on_connect => sub {
		2983	my ($ns) = @_;
		2984
		2985	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2986	},
1820	on_reply => sub {	2987	on_reply => sub {
1821	my ($ns, $msg) = @_;	2988	my ($ns, $msg) = @_;
1822		2989
1823	# this weird shuffling is so that direct followup queries	2990	# this weird shuffling is so that direct followup queries
1824	# get handled first	2991	# get handled first
1825	my $queue = delete $ns->{query_queue}	2992	my $queue = delete $ns->{query_queue}
1826	or return; # be conservative, not sure how that can happen, but we saw a crash here	2993	or return; # be conservative, not sure how that can happen, but we saw a crash here
1827		2994
1828	(shift @$queue)->[1]->($msg);	2995	(shift @$queue)->[1]->($msg);
		2996	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1829		2997
1830	push @{ $ns->{query_queue} }, @$queue;	2998	push @{ $ns->{query_queue} }, @$queue;
1831		2999
1832	if (@{ $ns->{query_queue} } == @$queue) {	3000	if (@{ $ns->{query_queue} } == @$queue) {
1833	if (@$queue) {	3001	if (@$queue) {
…		…
1835	} else {	3003	} else {
1836	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3004	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1837	}	3005	}
1838	}	3006	}
1839	},	3007	},
		3008	on_exticmd => sub {
		3009	my ($ns, $buf) = @_;
		3010
		3011	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3012
		3013	if (ref $msg) {
		3014	my ($type, $reply, @payload) =
		3015	"ARRAY" eq ref $msg
		3016	? @$msg
		3017	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3018
		3019	my @reply;
		3020
		3021	if (my $cb = $EXTICMD{$type}) {
		3022	@reply = $cb->($ns, @payload);
		3023	}
		3024
		3025	$ns->ext_reply ($reply, @reply)
		3026	if $reply;
		3027
		3028	} else {
		3029	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3030	}
		3031
		3032	cf::override;
		3033	},
1840	);	3034	);
1841		3035
1842	=item $client->async (\&cb)	3036	=item $client->async (\&cb)
1843		3037
1844	Create a new coroutine, running the specified callback. The coroutine will	3038	Create a new coroutine, running the specified callback. The coroutine will
…		…
1885	our $safe = new Safe "safe";	3079	our $safe = new Safe "safe";
1886	our $safe_hole = new Safe::Hole;	3080	our $safe_hole = new Safe::Hole;
1887		3081
1888	$SIG{FPE} = 'IGNORE';	3082	$SIG{FPE} = 'IGNORE';
1889		3083
1890	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3084	$safe->permit_only (Opcode::opset qw(
		3085	:base_core :base_mem :base_orig :base_math
		3086	grepstart grepwhile mapstart mapwhile
		3087	sort time
		3088	));
1891		3089
1892	# here we export the classes and methods available to script code	3090	# here we export the classes and methods available to script code
1893		3091
1894	=pod	3092	=pod
1895		3093
1896	The following fucntions and emthods are available within a safe environment:	3094	The following functions and methods are available within a safe environment:
1897		3095
1898	cf::object contr pay_amount pay_player map	3096	cf::object
		3097	contr pay_amount pay_player map x y force_find force_add destroy
		3098	insert remove name archname title slaying race decrease split
		3099
1899	cf::object::player player	3100	cf::object::player
1900	cf::player peaceful	3101	player
1901	cf::map trigger	3102
		3103	cf::player
		3104	peaceful
		3105
		3106	cf::map
		3107	trigger
1902		3108
1903	=cut	3109	=cut
1904		3110
1905	for (	3111	for (
1906	["cf::object" => qw(contr pay_amount pay_player map)],	3112	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3113	insert remove inv nrof name archname title slaying race
		3114	decrease split destroy change_exp)],
1907	["cf::object::player" => qw(player)],	3115	["cf::object::player" => qw(player)],
1908	["cf::player" => qw(peaceful)],	3116	["cf::player" => qw(peaceful)],
1909	["cf::map" => qw(trigger)],	3117	["cf::map" => qw(trigger)],
1910	) {	3118	) {
1911	no strict 'refs';	3119	no strict 'refs';
…		…
1982	=back	3190	=back
1983		3191
1984	=cut	3192	=cut
1985		3193
1986	#############################################################################	3194	#############################################################################
		3195	# the server's init and main functions
1987		3196
1988	=head2 EXTENSION DATABASE SUPPORT	3197	sub load_facedata($) {
		3198	my ($path) = @_;
1989		3199
1990	Crossfire maintains a very simple database for extension use. It can	3200	# HACK to clear player env face cache, we need some signal framework
1991	currently store anything that can be serialised using Storable, which	3201	# for this (global event?)
1992	excludes objects.	3202	%ext::player_env::MUSIC_FACE_CACHE = ();
1993		3203
1994	The parameter C<$family> should best start with the name of the extension	3204	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1995	using it, it should be unique.
1996		3205
1997	=over 4	3206	warn "loading facedata from $path\n";
1998		3207
1999	=item $hashref = cf::db_get $family	3208	my $facedata;
		3209	0 < aio_load $path, $facedata
		3210	or die "$path: $!";
2000		3211
2001	Return a hashref for use by the extension C<$family>, which can be	3212	$facedata = Coro::Storable::thaw $facedata;
2002	modified. After modifications, you have to call C<cf::db_dirty> or
2003	C<cf::db_sync>.
2004		3213
2005	=item $value = cf::db_get $family => $key	3214	$facedata->{version} == 2
		3215	or cf::cleanup "$path: version mismatch, cannot proceed.";
2006		3216
2007	Returns a single value from the database	3217	# patch in the exptable
2008		3218	$facedata->{resource}{"res/exp_table"} = {
2009	=item cf::db_put $family => $hashref	3219	type => FT_RSRC,
2010		3220	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2011	Stores the given family hashref into the database. Updates are delayed, if
2012	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2013
2014	=item cf::db_put $family => $key => $value
2015
2016	Stores the given C<$value> in the family hash. Updates are delayed, if you
2017	want the data to be synced to disk immediately, use C<cf::db_sync>.
2018
2019	=item cf::db_dirty
2020
2021	Marks the database as dirty, to be updated at a later time.
2022
2023	=item cf::db_sync
2024
2025	Immediately write the database to disk I<if it is dirty>.
2026
2027	=cut
2028
2029	our $DB;
2030
2031	{
2032	my $path = cf::localdir . "/database.pst";
2033
2034	sub db_load() {
2035	$DB = stat $path ? Storable::retrieve $path : { };
2036	}
2037
2038	my $pid;
2039
2040	sub db_save() {
2041	waitpid $pid, 0 if $pid;
2042	if (0 == ($pid = fork)) {
2043	$DB->{_meta}{version} = 1;
2044	Storable::nstore $DB, "$path~";
2045	rename "$path~", $path;
2046	cf::_exit 0 if defined $pid;
2047	}
2048	}
2049
2050	my $dirty;
2051
2052	sub db_sync() {
2053	db_save if $dirty;
2054	undef $dirty;
2055	}
2056
2057	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2058	db_sync;
2059	});	3221	};
		3222	cf::cede_to_tick;
2060		3223
2061	sub db_dirty() {
2062	$dirty = 1;
2063	$idle->start;
2064	}	3224	{
		3225	my $faces = $facedata->{faceinfo};
2065		3226
2066	sub db_get($;$) {	3227	while (my ($face, $info) = each %$faces) {
2067	@_ >= 2	3228	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2068	? $DB->{$_[0]}{$_[1]}
2069	: ($DB->{$_[0]} ||= { })
2070	}
2071		3229
2072	sub db_put($$;$) {	3230	cf::face::set_visibility $idx, $info->{visibility};
2073	if (@_ >= 3) {	3231	cf::face::set_magicmap $idx, $info->{magicmap};
2074	$DB->{$_[0]}{$_[1]} = $_[2];	3232	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2075	} else {	3233	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2076	$DB->{$_[0]} = $_[1];
2077	}
2078	db_dirty;
2079	}
2080		3234
2081	cf::global->attach (	3235	cf::cede_to_tick;
2082	prio => 10000,
2083	on_cleanup => sub {
2084	db_sync;
2085	},	3236	}
2086	);
2087	}
2088		3237
2089	#############################################################################	3238	while (my ($face, $info) = each %$faces) {
2090	# the server's main()	3239	next unless $info->{smooth};
2091		3240
2092	sub cfg_load {	3241	my $idx = cf::face::find $face
		3242	or next;
		3243
		3244	if (my $smooth = cf::face::find $info->{smooth}) {
		3245	cf::face::set_smooth $idx, $smooth;
		3246	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3247	} else {
		3248	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3249	}
		3250
		3251	cf::cede_to_tick;
		3252	}
		3253	}
		3254
		3255	{
		3256	my $anims = $facedata->{animinfo};
		3257
		3258	while (my ($anim, $info) = each %$anims) {
		3259	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3260	cf::cede_to_tick;
		3261	}
		3262
		3263	cf::anim::invalidate_all; # d'oh
		3264	}
		3265
		3266	{
		3267	# TODO: for gcfclient pleasure, we should give resources
		3268	# that gcfclient doesn't grok a >10000 face index.
		3269	my $res = $facedata->{resource};
		3270
		3271	while (my ($name, $info) = each %$res) {
		3272	if (defined $info->{type}) {
		3273	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3274	my $data;
		3275
		3276	if ($info->{type} & 1) {
		3277	# prepend meta info
		3278
		3279	my $meta = $enc->encode ({
		3280	name => $name,
		3281	%{ $info->{meta} || {} },
		3282	});
		3283
		3284	$data = pack "(w/a*)*", $meta, $info->{data};
		3285	} else {
		3286	$data = $info->{data};
		3287	}
		3288
		3289	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3290	cf::face::set_type $idx, $info->{type};
		3291	} else {
		3292	$RESOURCE{$name} = $info;
		3293	}
		3294
		3295	cf::cede_to_tick;
		3296	}
		3297	}
		3298
		3299	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3300
		3301	1
		3302	}
		3303
		3304	cf::global->attach (on_resource_update => sub {
		3305	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3306	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3307
		3308	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3309	my $sound = $soundconf->{compat}[$_]
		3310	or next;
		3311
		3312	my $face = cf::face::find "sound/$sound->[1]";
		3313	cf::sound::set $sound->[0] => $face;
		3314	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3315	}
		3316
		3317	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3318	my $face = cf::face::find "sound/$v";
		3319	cf::sound::set $k => $face;
		3320	}
		3321	}
		3322	});
		3323
		3324	register_exticmd fx_want => sub {
		3325	my ($ns, $want) = @_;
		3326
		3327	while (my ($k, $v) = each %$want) {
		3328	$ns->fx_want ($k, $v);
		3329	}
		3330	};
		3331
		3332	sub load_resource_file($) {
		3333	my $guard = lock_acquire "load_resource_file";
		3334
		3335	my $status = load_resource_file_ $_[0];
		3336	get_slot 0.1, 100;
		3337	cf::arch::commit_load;
		3338
		3339	$status
		3340	}
		3341
		3342	sub reload_regions {
		3343	# HACK to clear player env face cache, we need some signal framework
		3344	# for this (global event?)
		3345	%ext::player_env::MUSIC_FACE_CACHE = ();
		3346
		3347	load_resource_file "$MAPDIR/regions"
		3348	or die "unable to load regions file\n";
		3349
		3350	for (cf::region::list) {
		3351	$_->{match} = qr/$_->{match}/
		3352	if exists $_->{match};
		3353	}
		3354	}
		3355
		3356	sub reload_facedata {
		3357	load_facedata "$DATADIR/facedata"
		3358	or die "unable to load facedata\n";
		3359	}
		3360
		3361	sub reload_archetypes {
		3362	load_resource_file "$DATADIR/archetypes"
		3363	or die "unable to load archetypes\n";
		3364	}
		3365
		3366	sub reload_treasures {
		3367	load_resource_file "$DATADIR/treasures"
		3368	or die "unable to load treasurelists\n";
		3369	}
		3370
		3371	sub reload_resources {
		3372	warn "reloading resource files...\n";
		3373
		3374	reload_facedata;
		3375	reload_archetypes;
		3376	reload_regions;
		3377	reload_treasures;
		3378
		3379	warn "finished reloading resource files\n";
		3380	}
		3381
		3382	sub reload_config {
2093	open my $fh, "<:utf8", cf::confdir . "/config"	3383	open my $fh, "<:utf8", "$CONFDIR/config"
2094	or return;	3384	or return;
2095		3385
2096	local $/;	3386	local $/;
2097	*CFG = YAML::Syck::Load <$fh>;	3387	*CFG = YAML::Load <$fh>;
2098		3388
2099	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3389	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2100		3390
2101	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3391	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2102	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3392	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2108	};	3398	};
2109	warn $@ if $@;	3399	warn $@ if $@;
2110	}	3400	}
2111	}	3401	}
2112		3402
		3403	sub pidfile() {
		3404	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3405	or die "$PIDFILE: $!";
		3406	flock $fh, &Fcntl::LOCK_EX
		3407	or die "$PIDFILE: flock: $!";
		3408	$fh
		3409	}
		3410
		3411	# make sure only one server instance is running at any one time
		3412	sub atomic {
		3413	my $fh = pidfile;
		3414
		3415	my $pid = <$fh>;
		3416	kill 9, $pid if $pid > 0;
		3417
		3418	seek $fh, 0, 0;
		3419	print $fh $$;
		3420	}
		3421
2113	sub main {	3422	sub main {
		3423	cf::init_globals; # initialise logging
		3424
		3425	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3426	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3427	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3428	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3429
		3430	cf::init_experience;
		3431	cf::init_anim;
		3432	cf::init_attackmess;
		3433	cf::init_dynamic;
		3434	cf::init_block;
		3435
		3436	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3437
2114	# we must not ever block the main coroutine	3438	# we must not ever block the main coroutine
2115	local $Coro::idle = sub {	3439	local $Coro::idle = sub {
2116	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3440	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2117	async { Event::one_event };	3441	(async {
		3442	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3443	EV::loop EV::LOOP_ONESHOT;
		3444	})->prio (Coro::PRIO_MAX);
2118	};	3445	};
2119		3446
2120	cfg_load;	3447	evthread_start IO::AIO::poll_fileno;
2121	db_load;	3448
		3449	cf::sync_job {
		3450	reload_resources;
		3451	reload_config;
		3452	db_init;
		3453
		3454	cf::load_settings;
		3455	cf::load_materials;
		3456	cf::init_uuid;
		3457	cf::init_signals;
		3458	cf::init_commands;
		3459	cf::init_skills;
		3460
		3461	cf::init_beforeplay;
		3462
		3463	atomic;
		3464
2122	load_extensions;	3465	load_extensions;
		3466
		3467	utime time, time, $RUNTIMEFILE;
		3468
		3469	# no (long-running) fork's whatsoever before this point(!)
		3470	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3471
		3472	(pop @POST_INIT)->(0) while @POST_INIT;
		3473	};
		3474
2123	Event::loop;	3475	EV::loop;
2124	}	3476	}
2125		3477
2126	#############################################################################	3478	#############################################################################
2127	# initialisation	3479	# initialisation and cleanup
2128		3480
		3481	# install some emergency cleanup handlers
		3482	BEGIN {
		3483	our %SIGWATCHER = ();
		3484	for my $signal (qw(INT HUP TERM)) {
		3485	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3486	cf::cleanup "SIG$signal";
		3487	};
		3488	}
		3489	}
		3490
		3491	sub write_runtime_sync {
		3492	# first touch the runtime file to show we are still running:
		3493	# the fsync below can take a very very long time.
		3494
		3495	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3496
		3497	my $guard = cf::lock_acquire "write_runtime";
		3498
		3499	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3500	or return;
		3501
		3502	my $value = $cf::RUNTIME + 90 + 10;
		3503	# 10 is the runtime save interval, for a monotonic clock
		3504	# 60 allows for the watchdog to kill the server.
		3505
		3506	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3507	and return;
		3508
		3509	# always fsync - this file is important
		3510	aio_fsync $fh
		3511	and return;
		3512
		3513	# touch it again to show we are up-to-date
		3514	aio_utime $fh, undef, undef;
		3515
		3516	close $fh
		3517	or return;
		3518
		3519	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3520	and return;
		3521
		3522	warn "runtime file written.\n";
		3523
		3524	1
		3525	}
		3526
		3527	our $uuid_lock;
		3528	our $uuid_skip;
		3529
		3530	sub write_uuid_sync($) {
		3531	$uuid_skip ||= $_[0];
		3532
		3533	return if $uuid_lock;
		3534	local $uuid_lock = 1;
		3535
		3536	my $uuid = "$LOCALDIR/uuid";
		3537
		3538	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3539	or return;
		3540
		3541	my $value = uuid_seq uuid_cur;
		3542
		3543	unless ($value) {
		3544	warn "cowardly refusing to write zero uuid value!\n";
		3545	return;
		3546	}
		3547
		3548	my $value = uuid_str $value + $uuid_skip;
		3549	$uuid_skip = 0;
		3550
		3551	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3552	and return;
		3553
		3554	# always fsync - this file is important
		3555	aio_fsync $fh
		3556	and return;
		3557
		3558	close $fh
		3559	or return;
		3560
		3561	aio_rename "$uuid~", $uuid
		3562	and return;
		3563
		3564	warn "uuid file written ($value).\n";
		3565
		3566	1
		3567
		3568	}
		3569
		3570	sub write_uuid($$) {
		3571	my ($skip, $sync) = @_;
		3572
		3573	$sync ? write_uuid_sync $skip
		3574	: async { write_uuid_sync $skip };
		3575	}
		3576
		3577	sub emergency_save() {
		3578	my $freeze_guard = cf::freeze_mainloop;
		3579
		3580	warn "emergency_perl_save: enter\n";
		3581
		3582	cf::sync_job {
		3583	# this is a trade-off: we want to be very quick here, so
		3584	# save all maps without fsync, and later call a global sync
		3585	# (which in turn might be very very slow)
		3586	local $USE_FSYNC = 0;
		3587
		3588	# use a peculiar iteration method to avoid tripping on perl
		3589	# refcount bugs in for. also avoids problems with players
		3590	# and maps saved/destroyed asynchronously.
		3591	warn "emergency_perl_save: begin player save\n";
		3592	for my $login (keys %cf::PLAYER) {
		3593	my $pl = $cf::PLAYER{$login} or next;
		3594	$pl->valid or next;
		3595	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3596	$pl->save;
		3597	}
		3598	warn "emergency_perl_save: end player save\n";
		3599
		3600	warn "emergency_perl_save: begin map save\n";
		3601	for my $path (keys %cf::MAP) {
		3602	my $map = $cf::MAP{$path} or next;
		3603	$map->valid or next;
		3604	$map->save;
		3605	}
		3606	warn "emergency_perl_save: end map save\n";
		3607
		3608	warn "emergency_perl_save: begin database checkpoint\n";
		3609	BDB::db_env_txn_checkpoint $DB_ENV;
		3610	warn "emergency_perl_save: end database checkpoint\n";
		3611
		3612	warn "emergency_perl_save: begin write uuid\n";
		3613	write_uuid_sync 1;
		3614	warn "emergency_perl_save: end write uuid\n";
		3615	};
		3616
		3617	warn "emergency_perl_save: starting sync()\n";
		3618	IO::AIO::aio_sync sub {
		3619	warn "emergency_perl_save: finished sync()\n";
		3620	};
		3621
		3622	warn "emergency_perl_save: leave\n";
		3623	}
		3624
		3625	sub post_cleanup {
		3626	my ($make_core) = @_;
		3627
		3628	warn Carp::longmess "post_cleanup backtrace"
		3629	if $make_core;
		3630
		3631	my $fh = pidfile;
		3632	unlink $PIDFILE if <$fh> == $$;
		3633	}
		3634
		3635	# a safer delete_package, copied from Symbol
		3636	sub clear_package($) {
		3637	my $pkg = shift;
		3638
		3639	# expand to full symbol table name if needed
		3640	unless ($pkg =~ /^main::.*::$/) {
		3641	$pkg = "main$pkg" if $pkg =~ /^::/;
		3642	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3643	$pkg .= '::' unless $pkg =~ /::$/;
		3644	}
		3645
		3646	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3647	my $stem_symtab = *{$stem}{HASH};
		3648
		3649	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3650	or return;
		3651
		3652	# clear all symbols
		3653	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3654	for my $name (keys %$leaf_symtab) {
		3655	_gv_clear *{"$pkg$name"};
		3656	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3657	}
		3658	warn "cleared package $pkg\n";#d#
		3659	}
		3660
2129	sub reload() {	3661	sub do_reload_perl() {
2130	# can/must only be called in main	3662	# can/must only be called in main
2131	if ($Coro::current != $Coro::main) {	3663	if ($Coro::current != $Coro::main) {
2132	warn "can only reload from main coroutine\n";	3664	warn "can only reload from main coroutine";
2133	return;	3665	return;
2134	}	3666	}
2135		3667
		3668	return if $RELOAD++;
		3669
		3670	my $t1 = EV::time;
		3671
		3672	while ($RELOAD) {
2136	warn "reloading...";	3673	warn "reloading...";
2137		3674
2138	my $guard = freeze_mainloop;	3675	warn "entering sync_job";
		3676
		3677	cf::sync_job {
		3678	cf::write_runtime_sync; # external watchdog should not bark
2139	cf::emergency_save;	3679	cf::emergency_save;
		3680	cf::write_runtime_sync; # external watchdog should not bark
2140		3681
2141	eval {	3682	warn "syncing database to disk";
		3683	BDB::db_env_txn_checkpoint $DB_ENV;
		3684
2142	# if anything goes wrong in here, we should simply crash as we already saved	3685	# if anything goes wrong in here, we should simply crash as we already saved
2143		3686
2144	# cancel all watchers	3687	warn "flushing outstanding aio requests";
2145	for (Event::all_watchers) {	3688	while (IO::AIO::nreqs || BDB::nreqs) {
2146	$_->cancel if $_->data & WF_AUTOCANCEL;	3689	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2147	}
2148
2149	# cancel all extension coros
2150	$_->cancel for values %EXT_CORO;
2151	%EXT_CORO = ();
2152
2153	# unload all extensions
2154	for (@exts) {
2155	warn "unloading <$_>";
2156	unload_extension $_;
2157	}
2158
2159	# unload all modules loaded from $LIBDIR
2160	while (my ($k, $v) = each %INC) {
2161	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2162
2163	warn "removing <$k>";
2164	delete $INC{$k};
2165
2166	$k =~ s/\.pm$//;
2167	$k =~ s/\//::/g;
2168
2169	if (my $cb = $k->can ("unload_module")) {
2170	$cb->();
2171	}	3690	}
2172		3691
2173	Symbol::delete_package $k;	3692	warn "cancelling all extension coros";
		3693	$_->cancel for values %EXT_CORO;
		3694	%EXT_CORO = ();
		3695
		3696	warn "removing commands";
		3697	%COMMAND = ();
		3698
		3699	warn "removing ext/exti commands";
		3700	%EXTCMD = ();
		3701	%EXTICMD = ();
		3702
		3703	warn "unloading/nuking all extensions";
		3704	for my $pkg (@EXTS) {
		3705	warn "... unloading $pkg";
		3706
		3707	if (my $cb = $pkg->can ("unload")) {
		3708	eval {
		3709	$cb->($pkg);
		3710	1
		3711	} or warn "$pkg unloaded, but with errors: $@";
		3712	}
		3713
		3714	warn "... clearing $pkg";
		3715	clear_package $pkg;
2174	}	3716	}
2175		3717
2176	# sync database to disk	3718	warn "unloading all perl modules loaded from $LIBDIR";
2177	cf::db_sync;	3719	while (my ($k, $v) = each %INC) {
2178	IO::AIO::flush;	3720	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2179		3721
		3722	warn "... unloading $k";
		3723	delete $INC{$k};
		3724
		3725	$k =~ s/\.pm$//;
		3726	$k =~ s/\//::/g;
		3727
		3728	if (my $cb = $k->can ("unload_module")) {
		3729	$cb->();
		3730	}
		3731
		3732	clear_package $k;
		3733	}
		3734
2180	# get rid of safe::, as good as possible	3735	warn "getting rid of safe::, as good as possible";
2181	Symbol::delete_package "safe::$_"	3736	clear_package "safe::$_"
2182	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3737	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2183		3738
2184	# remove register_script_function callbacks	3739	warn "unloading cf.pm \"a bit\"";
2185	# TODO
2186
2187	# unload cf.pm "a bit"
2188	delete $INC{"cf.pm"};	3740	delete $INC{"cf.pm"};
		3741	delete $INC{"cf/pod.pm"};
2189		3742
2190	# don't, removes xs symbols, too,	3743	# don't, removes xs symbols, too,
2191	# and global variables created in xs	3744	# and global variables created in xs
2192	#Symbol::delete_package __PACKAGE__;	3745	#clear_package __PACKAGE__;
2193		3746
2194	# reload cf.pm	3747	warn "unload completed, starting to reload now";
		3748
2195	warn "reloading cf.pm";	3749	warn "reloading cf.pm";
2196	require cf;	3750	require cf;
2197	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3751	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2198		3752
2199	# load config and database again	3753	warn "loading config and database again";
2200	cf::cfg_load;	3754	cf::reload_config;
2201	cf::db_load;
2202		3755
2203	# load extensions
2204	warn "load extensions";	3756	warn "loading extensions";
2205	cf::load_extensions;	3757	cf::load_extensions;
2206		3758
2207	# reattach attachments to objects	3759	if ($REATTACH_ON_RELOAD) {
2208	warn "reattach";	3760	warn "reattaching attachments to objects/players";
2209	_global_reattach;	3761	_global_reattach; # objects, sockets
		3762	warn "reattaching attachments to maps";
2210	reattach $_ for values %MAP;	3763	reattach $_ for values %MAP;
		3764	warn "reattaching attachments to players";
		3765	reattach $_ for values %PLAYER;
		3766	}
		3767
		3768	warn "running post_init jobs";
		3769	(pop @POST_INIT)->(1) while @POST_INIT;
		3770
		3771	warn "leaving sync_job";
		3772
		3773	1
		3774	} or do {
		3775	warn $@;
		3776	cf::cleanup "error while reloading, exiting.";
		3777	};
		3778
		3779	warn "reloaded";
		3780	--$RELOAD;
		3781	}
		3782
		3783	$t1 = EV::time - $t1;
		3784	warn "reload completed in ${t1}s\n";
		3785	};
		3786
		3787	our $RELOAD_WATCHER; # used only during reload
		3788
		3789	sub reload_perl() {
		3790	# doing reload synchronously and two reloads happen back-to-back,
		3791	# coro crashes during coro_state_free->destroy here.
		3792
		3793	$RELOAD_WATCHER ||= cf::async {
		3794	Coro::AIO::aio_wait cache_extensions;
		3795
		3796	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3797	do_reload_perl;
		3798	undef $RELOAD_WATCHER;
		3799	};
2211	};	3800	};
2212
2213	if ($@) {
2214	warn $@;
2215	warn "error while reloading, exiting.";
2216	exit 1;
2217	}
2218
2219	warn "reloaded successfully";
2220	};
2221
2222	#############################################################################
2223
2224	unless ($LINK_MAP) {
2225	$LINK_MAP = cf::map::new;
2226
2227	$LINK_MAP->width (41);
2228	$LINK_MAP->height (41);
2229	$LINK_MAP->alloc;
2230	$LINK_MAP->path ("{link}");
2231	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2232	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2233
2234	# dirty hack because... archetypes are not yet loaded
2235	Event->timer (
2236	after => 10,
2237	cb => sub {
2238	$_[0]->w->cancel;
2239
2240	# provide some exits "home"
2241	my $exit = cf::object::new "exit";
2242
2243	$exit->slaying ($EMERGENCY_POSITION->[0]);
2244	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2245	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2246
2247	$LINK_MAP->insert ($exit->clone, 19, 19);
2248	$LINK_MAP->insert ($exit->clone, 19, 20);
2249	$LINK_MAP->insert ($exit->clone, 19, 21);
2250	$LINK_MAP->insert ($exit->clone, 20, 19);
2251	$LINK_MAP->insert ($exit->clone, 20, 21);
2252	$LINK_MAP->insert ($exit->clone, 21, 19);
2253	$LINK_MAP->insert ($exit->clone, 21, 20);
2254	$LINK_MAP->insert ($exit->clone, 21, 21);
2255
2256	$exit->destroy;
2257	});
2258
2259	$LINK_MAP->{deny_save} = 1;
2260	$LINK_MAP->{deny_reset} = 1;
2261
2262	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2263	}	3801	}
2264
2265	register "<global>", __PACKAGE__;
2266		3802
2267	register_command "reload" => sub {	3803	register_command "reload" => sub {
2268	my ($who, $arg) = @_;	3804	my ($who, $arg) = @_;
2269		3805
2270	if ($who->flag (FLAG_WIZ)) {	3806	if ($who->flag (FLAG_WIZ)) {
2271	$who->message ("start of reload.");
2272	reload;
2273	$who->message ("end of reload.");	3807	$who->message ("reloading server.");
		3808	async {
		3809	$Coro::current->{desc} = "perl_reload";
		3810	reload_perl;
		3811	};
2274	}	3812	}
2275	};	3813	};
2276		3814
2277	unshift @INC, $LIBDIR;	3815	unshift @INC, $LIBDIR;
2278		3816
2279	$TICK_WATCHER = Event->timer (	3817	my $bug_warning = 0;
2280	reentrant => 0,	3818
2281	prio => 0,	3819	our @WAIT_FOR_TICK;
2282	at => $NEXT_TICK || $TICK,	3820	our @WAIT_FOR_TICK_BEGIN;
2283	data => WF_AUTOCANCEL,	3821
2284	cb => sub {	3822	sub wait_for_tick {
		3823	return if tick_inhibit || $Coro::current == $Coro::main;
		3824
		3825	my $signal = new Coro::Signal;
		3826	push @WAIT_FOR_TICK, $signal;
		3827	$signal->wait;
		3828	}
		3829
		3830	sub wait_for_tick_begin {
		3831	return if tick_inhibit || $Coro::current == $Coro::main;
		3832
		3833	my $signal = new Coro::Signal;
		3834	push @WAIT_FOR_TICK_BEGIN, $signal;
		3835	$signal->wait;
		3836	}
		3837
		3838	sub tick {
		3839	if ($Coro::current != $Coro::main) {
		3840	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3841	unless ++$bug_warning > 10;
		3842	return;
		3843	}
		3844
2285	cf::server_tick; # one server iteration	3845	cf::server_tick; # one server iteration
2286	$RUNTIME += $TICK;
2287	$NEXT_TICK += $TICK;
2288		3846
2289	# if we are delayed by four ticks or more, skip them all	3847	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2290	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3848	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2291		3849	Coro::async_pool {
2292	$TICK_WATCHER->at ($NEXT_TICK);	3850	$Coro::current->{desc} = "runtime saver";
2293	$TICK_WATCHER->start;
2294	},
2295	);
2296
2297	IO::AIO::max_poll_time $TICK * 0.2;
2298
2299	Event->io (
2300	fd => IO::AIO::poll_fileno,
2301	poll => 'r',
2302	prio => 5,
2303	data => WF_AUTOCANCEL,
2304	cb => \&IO::AIO::poll_cb,
2305	);
2306
2307	Event->timer (
2308	data => WF_AUTOCANCEL,
2309	after => 0,
2310	interval => 10,
2311	cb => sub {
2312	(Coro::unblock_sub {
2313	write_runtime	3851	write_runtime_sync
2314	or warn "ERROR: unable to write runtime file: $!";	3852	or warn "ERROR: unable to write runtime file: $!";
2315	})->();	3853	};
2316	},	3854	}
2317	);	3855
		3856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3857	$sig->send;
		3858	}
		3859	while (my $sig = shift @WAIT_FOR_TICK) {
		3860	$sig->send;
		3861	}
		3862
		3863	$LOAD = ($NOW - $TICK_START) / $TICK;
		3864	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3865
		3866	if (0) {
		3867	if ($NEXT_TICK) {
		3868	my $jitter = $TICK_START - $NEXT_TICK;
		3869	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3870	warn "jitter $JITTER\n";#d#
		3871	}
		3872	}
		3873	}
		3874
		3875	{
		3876	# configure BDB
		3877
		3878	BDB::min_parallel 8;
		3879	BDB::max_poll_reqs $TICK * 0.1;
		3880	$AnyEvent::BDB::WATCHER->priority (1);
		3881
		3882	unless ($DB_ENV) {
		3883	$DB_ENV = BDB::db_env_create;
		3884	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3885	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3886	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3887	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3888	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3889
		3890	cf::sync_job {
		3891	eval {
		3892	BDB::db_env_open
		3893	$DB_ENV,
		3894	$BDBDIR,
		3895	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3896	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3897	0666;
		3898
		3899	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3900	};
		3901
		3902	cf::cleanup "db_env_open(db): $@" if $@;
		3903	};
		3904	}
		3905
		3906	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3907	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3908	};
		3909	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3910	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3911	};
		3912	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3913	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3914	};
		3915	}
		3916
		3917	{
		3918	# configure IO::AIO
		3919
		3920	IO::AIO::min_parallel 8;
		3921	IO::AIO::max_poll_time $TICK * 0.1;
		3922	undef $AnyEvent::AIO::WATCHER;
		3923	}
		3924
		3925	my $_log_backtrace;
		3926
		3927	sub _log_backtrace {
		3928	my ($msg, @addr) = @_;
		3929
		3930	$msg =~ s/\n//;
		3931
		3932	# limit the # of concurrent backtraces
		3933	if ($_log_backtrace < 2) {
		3934	++$_log_backtrace;
		3935	my $perl_bt = Carp::longmess $msg;
		3936	async {
		3937	$Coro::current->{desc} = "abt $msg";
		3938
		3939	my @bt = fork_call {
		3940	@addr = map { sprintf "%x", $_ } @addr;
		3941	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3942	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3943	or die "addr2line: $!";
		3944
		3945	my @funcs;
		3946	my @res = <$fh>;
		3947	chomp for @res;
		3948	while (@res) {
		3949	my ($func, $line) = splice @res, 0, 2, ();
		3950	push @funcs, "[$func] $line";
		3951	}
		3952
		3953	@funcs
		3954	};
		3955
		3956	LOG llevInfo, "[ABT] $perl_bt\n";
		3957	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3958	LOG llevInfo, "[ABT] $_\n" for @bt;
		3959	--$_log_backtrace;
		3960	};
		3961	} else {
		3962	LOG llevInfo, "[ABT] $msg\n";
		3963	LOG llevInfo, "[ABT] [suppressed]\n";
		3964	}
		3965	}
		3966
		3967	# load additional modules
		3968	use cf::pod;
2318		3969
2319	END { cf::emergency_save }	3970	END { cf::emergency_save }
2320		3971
2321	1	3972	1
2322		3973

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