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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.513 by root, Mon Apr 12 05:22:38 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# 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 Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
		115
		116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	118	our $NEXT_TICK;
45	our $NOW;	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
		123	our $BDB_TRICKLE_WATCHER;
		124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
46		127
47	our %CFG;	128	our %CFG;
48		129
49	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
51		133
52	our %MAP; # all maps	134	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	135	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	136	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	137
		138	# used to convert map paths into valid unix filenames by replacing / by ∕
		139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
56		150
57	binmode STDOUT;	151	binmode STDOUT;
58	binmode STDERR;	152	binmode STDERR;
59		153
60	# read virtual server time, if available	154	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
65	}	159	}
66		160
67	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		162
73	# a special map that is always available	163	mkdir $_
74	our $LINK_MAP;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		165
75	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
		167
		168	sub cf::map::normalise;
		169
		170	#############################################################################
		171
		172	%REFLECT = ();
		173	for (@REFLECT) {
		174	my $reflect = JSON::XS::decode_json $_;
		175	$REFLECT{$reflect->{class}} = $reflect;
		176	}
		177
		178	# this is decidedly evil
		179	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
76		180
77	#############################################################################	181	#############################################################################
78		182
79	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
80		184
…		…
87	=item $cf::RUNTIME	191	=item $cf::RUNTIME
88		192
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	193	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	194	every server tick.
91		195
92	=item $cf::LIBDIR	196	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		197	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		198	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		199
94	The perl library directory, where extensions and cf-specific modules can	200	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	201	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		202	unique-items directory, player file directory, random maps directory and
		203	database environment.
96		204
97	=item $cf::NOW	205	=item $cf::NOW
98		206
99	The time of the last (current) server tick.	207	The time of the last (current) server tick.
100		208
101	=item $cf::TICK	209	=item $cf::TICK
102		210
103	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
104		212
		213	=item $cf::LOADAVG
		214
		215	The current CPU load on the server (alpha-smoothed), as a value between 0
		216	(none) and 1 (overloaded), indicating how much time is spent on processing
		217	objects per tick. Healthy values are < 0.5.
		218
		219	=item $cf::LOAD
		220
		221	The raw value load value from the last tick.
		222
105	=item %cf::CFG	223	=item %cf::CFG
106		224
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	226	from wherever your confdir points to.
109		227
		228	=item cf::wait_for_tick, cf::wait_for_tick_begin
		229
		230	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		231	returns directly I<after> the tick processing (and consequently, can only wake one process
		232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		233
		234	=item @cf::INVOKE_RESULTS
		235
		236	This array contains the results of the last C<invoke ()> call. When
		237	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		238	that call.
		239
		240	=item %cf::REFLECT
		241
		242	Contains, for each (C++) class name, a hash reference with information
		243	about object members (methods, scalars, arrays and flags) and other
		244	metadata, which is useful for introspection.
		245
110	=back	246	=back
111		247
112	=cut	248	=cut
113		249
114	BEGIN {	250	$Coro::State::WARNHOOK = sub {
115	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	251	my $msg = join "", @_;
117	utf8::encode $msg;
118		252
119	$msg .= "\n"	253	$msg .= "\n"
120	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
121		255
		256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
122	LOG llevError, "cfperl: $msg";	258	LOG llevError, $msg;
123	};	259	};
124	}	260
		261	$Coro::State::DIEHOOK = sub {
		262	return unless $^S eq 0; # "eq", not "=="
		263
		264	warn Carp::longmess $_[0];
		265
		266	if ($Coro::current == $Coro::main) {#d#
		267	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		268	return;#d#
		269	}#d#
		270
		271	# kill coroutine otherwise
		272	Coro::terminate
		273	};
125		274
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	279	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		280	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	281	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		282
133	# we bless all objects into (empty) derived classes to force a method lookup	283	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	284	# within the Safe compartment.
135	for my $pkg (qw(	285	for my $pkg (qw(
136	cf::global cf::attachable	286	cf::global cf::attachable
137	cf::object cf::object::player	287	cf::object cf::object::player
138	cf::client cf::player	288	cf::client cf::player
139	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
140	cf::map cf::party cf::region	291	cf::party cf::region
141	)) {	292	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	294	}
145		295
146	$Event::DIED = sub {	296	$EV::DIED = sub {
147	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
148	};	298	};
149		299
150	my %ext_pkg;	300	#############################################################################
151	my @exts;
152	my @hook;
153		301
154	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
155		303
156	=over 4	304	=over 4
157		305
158	=cut	306	=item dumpval $ref
159		307
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	308	=cut
161		309
		310	sub dumpval {
		311	eval {
		312	local $SIG{__DIE__};
		313	my $d;
		314	if (1) {
		315	$d = new Data::Dumper([$_[0]], ["*var"]);
		316	$d->Terse(1);
		317	$d->Indent(2);
		318	$d->Quotekeys(0);
		319	$d->Useqq(1);
		320	#$d->Bless(...);
		321	$d->Seen($_[1]) if @_ > 1;
		322	$d = $d->Dump();
		323	}
		324	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		325	$d
		326	} || "[unable to dump $_[0]: '$@']";
		327	}
		328
162	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
163		330
164	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
165		332
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
174		334
175	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
176		336
177	=cut	337	=cut
178		338
179	sub to_json($) {	339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		340
184	=item my $guard = cf::guard { BLOCK }	341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
185		343
186	Run the given callback when the guard object gets destroyed (useful for	344	=item cf::post_init { BLOCK }
187	coroutine cancellations).
188		345
189	You can call C<< ->cancel >> on the guard object to stop the block from	346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
190	being executed.	347	but I<before> the server starts ticking again.
191		348
192	=cut	349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
193		351
194	sub guard(&) {	352	=cut
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197		353
198	sub cf::guard::cancel {	354	sub post_init(&) {
199	${$_[0]} = sub { };	355	push @POST_INIT, shift;
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}	356	}
205		357
206	=item cf::lock_wait $string	358	=item cf::lock_wait $string
207		359
208	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
209		361
210	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
211		363
212	Wait until the given lock is available and then acquires it and returns	364	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	365	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	366	for example when the coroutine gets canceled), the lock is automatically
215	returned.	367	returned.
216		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
217	Lock names should begin with a unique identifier (for example, cf::map::find	372	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	373	uses map_find and cf::map::load uses map_load).
219		374
220	=cut	375	=item $locked = cf::lock_active $string
221		376
222	our %LOCK;	377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
223		382
224	sub lock_wait($) {	383	sub lock_wait($) {
225	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
226
227	# wait for lock, if any
228	while ($LOCK{$key}) {
229	push @{ $LOCK{$key} }, $Coro::current;
230	Coro::schedule;
231	}
232	}	385	}
233		386
234	sub lock_acquire($) {	387	sub lock_acquire($) {
235	my ($key) = @_;	388	$LOCKS->guard ($_[0])
		389	}
236		390
237	# wait, to be sure we are not locked	391	sub lock_active($) {
238	lock_wait $key;	392	$LOCKS->count ($_[0]) < 1
		393	}
239		394
240	$LOCK{$key} = [];	395	sub freeze_mainloop {
		396	tick_inhibit_inc;
241		397
242	cf::guard {	398	&Guard::guard (\&tick_inhibit_dec);
243	# wake up all waiters, to be on the safe side	399	}
244	$_->ready for @{ delete $LOCK{$key} };	400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over timer.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
245	}	465	}
		466	};
		467
		468	sub get_slot($;$$) {
		469	return if tick_inhibit || $Coro::current == $Coro::main;
		470
		471	my ($time, $pri, $name) = @_;
		472
		473	$time = clamp $time, 0.01, $TICK * .6;
		474
		475	my $sig = new Coro::Signal;
		476
		477	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		478	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		479	$SLOT_QUEUE->ready;
		480	$sig->wait;
246	}	481	}
247		482
248	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
249		484
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	485	Currently the same as Coro::async_pool, meaning you cannot use
251	error instead of exiting the server in case of a problem.	486	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		487	thing you are allowed to do is call C<prio> on it.
252		488
253	=cut	489	=cut
254		490
255	sub async(&) {	491	BEGIN { *async = \&Coro::async_pool }
256	my ($cb) = @_;
257
258	Coro::async {
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}
263
264	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;
266
267	my $guard = guard { $TICK_WATCHER->start };
268	$TICK_WATCHER->stop;
269	$guard
270	}
271		492
272	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
273		494
274	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
277		499
278	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
281	fast or be very important.	503	fast or be very important.
…		…
284		506
285	sub sync_job(&) {	507	sub sync_job(&) {
286	my ($job) = @_;	508	my ($job) = @_;
287		509
288	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
289	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
291		515
292	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
293	# (but this is cancel-safe)	517
294	my $freeze_guard = freeze_mainloop;	518	my $freeze_guard = freeze_mainloop;
295		519
296	my $busy = 1;	520	my $busy = 1;
297	my @res;	521	my @res;
298		522
299	(Coro::async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
300	@res = eval { $job->() };	525	@res = eval { $job->() };
301	warn $@ if $@;	526	warn $@ if $@;
302	undef $busy;	527	undef $busy;
303	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
304		529
305	while ($busy) {	530	while ($busy) {
		531	if (Coro::nready) {
306	Coro::cede_notself;	532	Coro::cede_notself;
307	Event::one_event unless Coro::nready;	533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
308	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
309		541
310	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
311	} else {	543	} else {
312	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
313		545
314	$job->()	546	$job->()
315	}	547	}
316	}	548	}
317		549
318	=item $coro = cf::coro { BLOCK }	550	=item $coro = cf::async_ext { BLOCK }
319		551
320	Creates and returns a new coro. This coro is automcatially being canceled	552	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	553	extension calling this is being unloaded.
322		554
323	=cut	555	=cut
324		556
325	sub coro(&) {	557	sub async_ext(&) {
326	my $cb = shift;	558	my $cb = shift;
327		559
328	my $coro = &cf::async ($cb);	560	my $coro = &Coro::async ($cb);
329		561
330	$coro->on_destroy (sub {	562	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	563	delete $EXT_CORO{$coro+0};
332	});	564	});
333	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
334		566
335	$coro	567	$coro
336	}	568	}
337		569
338	sub write_runtime {	570	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		571
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	572	Executes the given code block with the given arguments in a seperate
342	or return;	573	process, returning the results. Everything must be serialisable with
		574	Coro::Storable. May, of course, block. Note that the executed sub may
		575	never block itself or use any form of event handling.
343		576
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	577	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		578
348	aio_fsync $fh	579	sub fork_call(&@) {
349	and return;	580	my ($cb, @args) = @_;
350		581
351	close $fh	582	# we seemingly have to make a local copy of the whole thing,
352	or return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
353		585
354	aio_rename "$runtime~", $runtime	586	my @res = Coro::Util::fork_eval {
355	and return;	587	reset_signals;
		588	&$cb
		589	}, @args;
356		590
		591	wantarray ? @res : $res[-1]
		592	}
		593
		594	=item $coin = coin_from_name $name
		595
		596	=cut
		597
		598	our %coin_alias = (
		599	"silver" => "silvercoin",
		600	"silvercoin" => "silvercoin",
		601	"silvercoins" => "silvercoin",
		602	"gold" => "goldcoin",
		603	"goldcoin" => "goldcoin",
		604	"goldcoins" => "goldcoin",
		605	"platinum" => "platinacoin",
		606	"platinumcoin" => "platinacoin",
		607	"platinumcoins" => "platinacoin",
		608	"platina" => "platinacoin",
		609	"platinacoin" => "platinacoin",
		610	"platinacoins" => "platinacoin",
		611	"royalty" => "royalty",
		612	"royalties" => "royalty",
		613	);
		614
		615	sub coin_from_name($) {
		616	$coin_alias{$_[0]}
		617	? cf::arch::find $coin_alias{$_[0]}
		618	: undef
		619	}
		620
		621	=item $value = cf::db_get $family => $key
		622
		623	Returns a single value from the environment database.
		624
		625	=item cf::db_put $family => $key => $value
		626
		627	Stores the given C<$value> in the family. It can currently store binary
		628	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		629
		630	=item $db = cf::db_table "name"
		631
		632	Create and/or open a new database table. The string must not be "db" and must be unique
		633	within each server.
		634
		635	=cut
		636
		637	sub db_table($) {
		638	my ($name) = @_;
		639	my $db = BDB::db_create $DB_ENV;
		640
		641	eval {
		642	$db->set_flags (BDB::CHKSUM);
		643
		644	utf8::encode $name;
		645	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		646	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		647	cf::cleanup "db_open(db): $!" if $!;
		648	};
		649	cf::cleanup "db_open(db): $@" if $@;
		650
		651	$db
		652	}
		653
		654	our $DB;
		655
		656	sub db_init {
		657	cf::sync_job {
		658	$DB ||= db_table "db";
		659	};
		660	}
		661
		662	sub db_get($$) {
		663	my $key = "$_[0]/$_[1]";
		664
		665	cf::sync_job {
		666	BDB::db_get $DB, undef, $key, my $data;
		667
		668	$! ? ()
		669	: $data
357	1	670	}
		671	}
		672
		673	sub db_put($$$) {
		674	BDB::dbreq_pri 4;
		675	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		676	}
		677
		678	=item cf::cache $id => [$paths...], $processversion => $process
		679
		680	Generic caching function that returns the value of the resource $id,
		681	caching and regenerating as required.
		682
		683	This function can block.
		684
		685	=cut
		686
		687	sub cache {
		688	my ($id, $src, $processversion, $process) = @_;
		689
		690	my $meta =
		691	join "\x00",
		692	$processversion,
		693	map {
		694	aio_stat $_
		695	and Carp::croak "$_: $!";
		696
		697	($_, (stat _)[7,9])
		698	} @$src;
		699
		700	my $dbmeta = db_get cache => "$id/meta";
		701	if ($dbmeta ne $meta) {
		702	# changed, we may need to process
		703
		704	my @data;
		705	my $md5;
		706
		707	for (0 .. $#$src) {
		708	0 <= aio_load $src->[$_], $data[$_]
		709	or Carp::croak "$src->[$_]: $!";
		710	}
		711
		712	# if processing is expensive, check
		713	# checksum first
		714	if (1) {
		715	$md5 =
		716	join "\x00",
		717	$processversion,
		718	map {
		719	cf::cede_to_tick;
		720	($src->[$_], Digest::MD5::md5_hex $data[$_])
		721	} 0.. $#$src;
		722
		723
		724	my $dbmd5 = db_get cache => "$id/md5";
		725	if ($dbmd5 eq $md5) {
		726	db_put cache => "$id/meta", $meta;
		727
		728	return db_get cache => "$id/data";
		729	}
		730	}
		731
		732	my $t1 = Time::HiRes::time;
		733	my $data = $process->(\@data);
		734	my $t2 = Time::HiRes::time;
		735
		736	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		737
		738	db_put cache => "$id/data", $data;
		739	db_put cache => "$id/md5" , $md5;
		740	db_put cache => "$id/meta", $meta;
		741
		742	return $data;
		743	}
		744
		745	db_get cache => "$id/data"
		746	}
		747
		748	=item cf::datalog type => key => value, ...
		749
		750	Log a datalog packet of the given type with the given key-value pairs.
		751
		752	=cut
		753
		754	sub datalog($@) {
		755	my ($type, %kv) = @_;
		756	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	757	}
359		758
360	=back	759	=back
361		760
362	=cut	761	=cut
363		762
364	#############################################################################	763	#############################################################################
365		764
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483
484	#############################################################################
485
486	=head2 ATTACHABLE OBJECTS	765	=head2 ATTACHABLE OBJECTS
487		766
488	Many objects in crossfire are so-called attachable objects. That means you can	767	Many objects in deliantra are so-called attachable objects. That means you can
489	attach callbacks/event handlers (a collection of which is called an "attachment")	768	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	769	to it. All such attachable objects support the following methods.
491		770
492	In the following description, CLASS can be any of C<global>, C<object>	771	In the following description, CLASS can be any of C<global>, C<object>
493	C<player>, C<client> or C<map> (i.e. the attachable objects in	772	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	773	Deliantra).
495		774
496	=over 4	775	=over 4
497		776
498	=item $attachable->attach ($attachment, key => $value...)	777	=item $attachable->attach ($attachment, key => $value...)
499		778
…		…
543	=item cf::CLASS::attachment $name, ...	822	=item cf::CLASS::attachment $name, ...
544		823
545	Register an attachment by C<$name> through which attachable objects of the	824	Register an attachment by C<$name> through which attachable objects of the
546	given CLASS can refer to this attachment.	825	given CLASS can refer to this attachment.
547		826
548	Some classes such as crossfire maps and objects can specify attachments	827	Some classes such as deliantra maps and objects can specify attachments
549	that are attached at load/instantiate time, thus the need for a name.	828	that are attached at load/instantiate time, thus the need for a name.
550		829
551	These calls expect any number of the following handler/hook descriptions:	830	These calls expect any number of the following handler/hook descriptions:
552		831
553	=over 4	832	=over 4
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	892	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	893	our @CB_MAP = ();
615		894
616	my %attachment;	895	my %attachment;
617		896
		897	sub cf::attachable::thawer_merge {
		898	# simply override everything except _meta
		899	local $_[0]{_meta};
		900	%{$_[0]} = %{$_[1]};
		901	}
		902
618	sub _attach_cb($$$$) {	903	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	904	my ($registry, $event, $prio, $cb) = @_;
620		905
621	use sort 'stable';	906	use sort 'stable';
622		907
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	941	$registry = $CB_TYPE[$object_type] ||= [];
657		942
658	} elsif ($type eq "subtype") {	943	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	944	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	945	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	946	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		947
663	} elsif ($type eq "package") {	948	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	949	my $pkg = shift @arg;
665		950
666	while (my ($name, $id) = each %cb_id) {	951	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	980	_attach $registry, $klass, @attach;
696	}	981	}
697		982
698	$obj->{$name} = \%arg;	983	$obj->{$name} = \%arg;
699	} else {	984	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	985	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	986	}
702		987
703	$obj->{_attachment}{$name} = undef;	988	$obj->{_attachment}{$name} = undef;
704	}	989	}
705		990
…		…
707	if (ref $_[0]) {	992	if (ref $_[0]) {
708	_object_attach @_;	993	_object_attach @_;
709	} else {	994	} else {
710	_attach shift->_attach_registry, @_;	995	_attach shift->_attach_registry, @_;
711	}	996	}
		997	_recalc_want;
712	};	998	};
713		999
714	# all those should be optimised	1000	# all those should be optimised
715	sub cf::attachable::detach {	1001	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	1002	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	1005	delete $obj->{_attachment}{$name};
720	reattach ($obj);	1006	reattach ($obj);
721	} else {	1007	} else {
722	Carp::croak "cannot, currently, detach class attachments";	1008	Carp::croak "cannot, currently, detach class attachments";
723	}	1009	}
		1010	_recalc_want;
724	};	1011	};
725		1012
726	sub cf::attachable::attached {	1013	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	1014	my ($obj, $name) = @_;
728		1015
…		…
743	";	1030	";
744	die if $@;	1031	die if $@;
745	}	1032	}
746		1033
747	our $override;	1034	our $override;
748	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1035	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
749		1036
750	sub override {	1037	sub override {
751	$override = 1;	1038	$override = 1;
752	@invoke_results = ();	1039	@INVOKE_RESULTS = (@_);
753	}	1040	}
754		1041
755	sub do_invoke {	1042	sub do_invoke {
756	my $event = shift;	1043	my $event = shift;
757	my $callbacks = shift;	1044	my $callbacks = shift;
758		1045
759	@invoke_results = ();	1046	@INVOKE_RESULTS = ();
760		1047
761	local $override;	1048	local $override;
762		1049
763	for (@$callbacks) {	1050	for (@$callbacks) {
764	eval { &{$_->[1]} };	1051	eval { &{$_->[1]} };
…		…
773	}	1060	}
774		1061
775	0	1062	0
776	}	1063	}
777		1064
778	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1065	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
779		1066
780	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1067	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
781		1068
782	Generate an object-specific event with the given arguments.	1069	Generate an object-specific event with the given arguments.
783		1070
784	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1071	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
785	removed in future versions), and there is no public API to access override	1072	removed in future versions), and there is no public API to access override
786	results (if you must, access C<@cf::invoke_results> directly).	1073	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		1074
788	=back	1075	=back
789		1076
790	=cut	1077	=cut
791		1078
792	#############################################################################	1079	#############################################################################
793	# object support	1080	# object support
		1081
		1082	sub _object_equal($$);
		1083	sub _object_equal($$) {
		1084	my ($a, $b) = @_;
		1085
		1086	return 0 unless (ref $a) eq (ref $b);
		1087
		1088	if ("HASH" eq ref $a) {
		1089	my @ka = keys %$a;
		1090	my @kb = keys %$b;
		1091
		1092	return 0 if @ka != @kb;
		1093
		1094	for (0 .. $#ka) {
		1095	return 0 unless $ka[$_] eq $kb[$_];
		1096	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1097	}
		1098
		1099	} elsif ("ARRAY" eq ref $a) {
		1100
		1101	return 0 if @$a != @$b;
		1102
		1103	for (0 .. $#$a) {
		1104	return 0 unless _object_equal $a->[$_], $b->[$_];
		1105	}
		1106
		1107	} elsif ($a ne $b) {
		1108	return 0;
		1109	}
		1110
		1111	1
		1112	}
		1113
		1114	our $SLOW_MERGES;#d#
		1115	sub _can_merge {
		1116	my ($ob1, $ob2) = @_;
		1117
		1118	++$SLOW_MERGES;#d#
		1119
		1120	# we do the slow way here
		1121	return _object_equal $ob1, $ob2
		1122	}
794		1123
795	sub reattach {	1124	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	1125	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	1126	my ($obj) = @_;
		1127
		1128	# no longer needed after getting rid of delete_package?
		1129	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		1130
799	my $registry = $obj->registry;	1131	my $registry = $obj->registry;
800		1132
801	@$registry = ();	1133	@$registry = ();
802		1134
…		…
817	cf::attachable->attach (	1149	cf::attachable->attach (
818	prio => -1000000,	1150	prio => -1000000,
819	on_instantiate => sub {	1151	on_instantiate => sub {
820	my ($obj, $data) = @_;	1152	my ($obj, $data) = @_;
821		1153
822	$data = from_json $data;	1154	$data = decode_json $data;
823		1155
824	for (@$data) {	1156	for (@$data) {
825	my ($name, $args) = @$_;	1157	my ($name, $args) = @$_;
826		1158
827	$obj->attach ($name, %{$args || {} });	1159	$obj->attach ($name, %{$args || {} });
…		…
843	sub object_freezer_save {	1175	sub object_freezer_save {
844	my ($filename, $rdata, $objs) = @_;	1176	my ($filename, $rdata, $objs) = @_;
845		1177
846	sync_job {	1178	sync_job {
847	if (length $$rdata) {	1179	if (length $$rdata) {
		1180	utf8::decode (my $decname = $filename);
848	warn sprintf "saving %s (%d,%d)\n",	1181	warn sprintf "saving %s (%d,%d)\n",
849	$filename, length $$rdata, scalar @$objs;	1182	$decname, length $$rdata, scalar @$objs;
850		1183
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1186	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1187	if ($cf::USE_FSYNC) {
		1188	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
854	aio_fsync $fh;	1189	aio_fsync $fh;
		1190	}
855	close $fh;	1191	aio_close $fh;
856		1192
857	if (@$objs) {	1193	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1194	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	1195	aio_chmod $fh, SAVE_MODE;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1196	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1197	aio_write $fh, 0, (length $data), $data, 0;
		1198	if ($cf::USE_FSYNC) {
		1199	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
862	aio_fsync $fh;	1200	aio_fsync $fh;
		1201	}
863	close $fh;	1202	aio_close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1203	aio_rename "$filename.pst~", "$filename.pst";
865	}	1204	}
866	} else {	1205	} else {
867	aio_unlink "$filename.pst";	1206	aio_unlink "$filename.pst";
868	}	1207	}
869		1208
870	aio_rename "$filename~", $filename;	1209	aio_rename "$filename~", $filename;
		1210
		1211	$filename =~ s%/[^/]+$%%;
		1212	aio_pathsync $filename if $cf::USE_FSYNC;
871	} else {	1213	} else {
872	warn "FATAL: $filename~: $!\n";	1214	warn "unable to save objects: $filename~: $!\n";
873	}	1215	}
874	} else {	1216	} else {
875	aio_unlink $filename;	1217	aio_unlink $filename;
876	aio_unlink "$filename.pst";	1218	aio_unlink "$filename.pst";
877	}	1219	}
878	}	1220	};
879	}	1221	}
880		1222
881	sub object_freezer_as_string {	1223	sub object_freezer_as_string {
882	my ($rdata, $objs) = @_;	1224	my ($rdata, $objs) = @_;
883		1225
…		…
895	or return;	1237	or return;
896		1238
897	unless (aio_stat "$filename.pst") {	1239	unless (aio_stat "$filename.pst") {
898	(aio_load "$filename.pst", $av) >= 0	1240	(aio_load "$filename.pst", $av) >= 0
899	or return;	1241	or return;
		1242
900	$av = eval { (Storable::thaw $av)->{objs} };	1243	my $st = eval { Coro::Storable::thaw $av };
		1244	$av = $st->{objs};
901	}	1245	}
902		1246
		1247	utf8::decode (my $decname = $filename);
903	warn sprintf "loading %s (%d)\n",	1248	warn sprintf "loading %s (%d,%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1249	$decname, length $data, scalar @{$av || []};
		1250
905	return ($data, $av);	1251	($data, $av)
906	}	1252	}
		1253
		1254	=head2 COMMAND CALLBACKS
		1255
		1256	=over 4
		1257
		1258	=cut
907		1259
908	#############################################################################	1260	#############################################################################
909	# command handling &c	1261	# command handling &c
910		1262
911	=item cf::register_command $name => \&callback($ob,$args);	1263	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1276	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1277	}
926		1278
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1279	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1280
929	Register a callbackf ro execution when the client sends an extcmd packet.	1281	Register a callback for execution when the client sends an (synchronous)
		1282	extcmd packet. Ext commands will be processed in the order they are
		1283	received by the server, like other user commands. The first argument is
		1284	the logged-in player. Ext commands can only be processed after a player
		1285	has logged in successfully.
930		1286
931	If the callback returns something, it is sent back as if reply was being	1287	If the callback returns something, it is sent back as if reply was being
932	called.	1288	called.
933		1289
		1290	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1291
		1292	Register a callback for execution when the client sends an (asynchronous)
		1293	exticmd packet. Exti commands are processed by the server as soon as they
		1294	are received, i.e. out of order w.r.t. other commands. The first argument
		1295	is a client socket. Exti commands can be received anytime, even before
		1296	log-in.
		1297
		1298	If the callback returns something, it is sent back as if reply was being
		1299	called.
		1300
934	=cut	1301	=cut
935		1302
936	sub register_extcmd {	1303	sub register_extcmd {
937	my ($name, $cb) = @_;	1304	my ($name, $cb) = @_;
938		1305
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1306	$EXTCMD{$name} = $cb;
943	}	1307	}
		1308
		1309	sub register_exticmd {
		1310	my ($name, $cb) = @_;
		1311
		1312	$EXTICMD{$name} = $cb;
		1313	}
		1314
		1315	use File::Glob ();
944		1316
945	cf::player->attach (	1317	cf::player->attach (
946	on_command => sub {	1318	on_unknown_command => sub {
947	my ($pl, $name, $params) = @_;	1319	my ($pl, $name, $params) = @_;
948		1320
949	my $cb = $COMMAND{$name}	1321	my $cb = $COMMAND{$name}
950	or return;	1322	or return;
951		1323
…		…
956	cf::override;	1328	cf::override;
957	},	1329	},
958	on_extcmd => sub {	1330	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1331	my ($pl, $buf) = @_;
960		1332
961	my $msg = eval { from_json $buf };	1333	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1334
963	if (ref $msg) {	1335	if (ref $msg) {
		1336	my ($type, $reply, @payload) =
		1337	"ARRAY" eq ref $msg
		1338	? @$msg
		1339	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1340
		1341	my @reply;
		1342
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1343	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1344	@reply = $cb->($pl, @payload);
966	$pl->ext_reply ($msg->{msgid}, %reply);
967	}
968	}	1345	}
		1346
		1347	$pl->ext_reply ($reply, @reply)
		1348	if $reply;
		1349
969	} else {	1350	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1351	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1352	}
972		1353
973	cf::override;	1354	cf::override;
974	},	1355	},
975	);	1356	);
976		1357
977	sub register {	1358	# "readahead" all extensions
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1359	sub cache_extensions {
984	my ($path) = @_;	1360	my $grp = IO::AIO::aio_group;
985		1361
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1362	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
987	my $base = $1;	1363	for (grep /\.ext$/, @{$_[0]}) {
988	my $pkg = $1;	1364	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991
992	warn "loading '$path' into '$pkg'\n";
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }
1026
1027	# remove commands
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}	1365	}
1036	}	1366	};
1037		1367
1038	# remove extcmds	1368	$grp
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}	1369	}
1052		1370
1053	sub load_extensions {	1371	sub load_extensions {
		1372	cf::sync_job {
		1373	my %todo;
		1374
1054	for my $ext (<$LIBDIR/*.ext>) {	1375	for my $path (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;	1376	next unless -r $path;
1056	eval {	1377
1057	load_extension $ext;	1378	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1379	my $base = $1;
		1380	my $pkg = $1;
		1381	$pkg =~ s/[^[:word:]]/_/g;
		1382	$pkg = "ext::$pkg";
		1383
		1384	open my $fh, "<:utf8", $path
		1385	or die "$path: $!";
		1386
		1387	my $source = do { local $/; <$fh> };
		1388
		1389	my %ext = (
		1390	path => $path,
		1391	base => $base,
		1392	pkg => $pkg,
		1393	);
		1394
		1395	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1396	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1397
		1398	$ext{source} =
		1399	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1400	. "#line 1 \"$path\"\n{\n"
		1401	. $source
		1402	. "\n};\n1";
		1403
		1404	$todo{$base} = \%ext;
		1405	}
		1406
		1407	my $pass = 0;
		1408	my %done;
		1409	while (%todo) {
		1410	my $progress;
		1411
		1412	++$pass;
		1413
		1414	ext:
		1415	while (my ($k, $v) = each %todo) {
		1416	for (split /,\s*/, $v->{meta}{depends}) {
		1417	next ext
		1418	unless exists $done{$_};
		1419	}
		1420
		1421	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1422
		1423	my $active = eval $v->{source};
		1424
		1425	if (length $@) {
		1426	warn "$v->{path}: $@\n";
		1427
		1428	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1429	if exists $v->{meta}{mandatory};
		1430	} else {
		1431	$done{$k} = delete $todo{$k};
		1432	push @EXTS, $v->{pkg};
		1433	$progress = 1;
		1434
		1435	warn "$v->{base}: extension inactive.\n"
		1436	unless $active;
		1437	}
1058	1	1438	}
1059	} or warn "$ext not loaded: $@";	1439
		1440	unless ($progress) {
		1441	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1442
		1443	while (my ($k, $v) = each %todo) {
		1444	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1445	if exists $v->{meta}{mandatory};
		1446	}
		1447	}
		1448	}
1060	}	1449	};
1061	}	1450	}
1062		1451
1063	#############################################################################	1452	#############################################################################
1064	# load/save/clean perl data associated with a map
1065		1453
1066	*cf::mapsupport::on_clean = sub {	1454	=back
		1455
		1456	=head2 CORE EXTENSIONS
		1457
		1458	Functions and methods that extend core deliantra objects.
		1459
		1460	=cut
		1461
		1462	package cf::player;
		1463
		1464	use Coro::AIO;
		1465
		1466	=head3 cf::player
		1467
		1468	=over 4
		1469
		1470	=item cf::player::num_playing
		1471
		1472	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1473
		1474	=cut
		1475
		1476	sub num_playing {
		1477	scalar grep
		1478	$_->ob->map
		1479	&& !$_->hidden
		1480	&& !$_->ob->flag (cf::FLAG_WIZ),
		1481	cf::player::list
		1482	}
		1483
		1484	=item cf::player::find $login
		1485
		1486	Returns the given player object, loading it if necessary (might block).
		1487
		1488	=cut
		1489
		1490	sub playerdir($) {
		1491	"$PLAYERDIR/"
		1492	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1493	}
		1494
		1495	sub path($) {
		1496	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1497
		1498	(playerdir $login) . "/playerdata"
		1499	}
		1500
		1501	sub find_active($) {
		1502	$cf::PLAYER{$_[0]}
		1503	and $cf::PLAYER{$_[0]}->active
		1504	and $cf::PLAYER{$_[0]}
		1505	}
		1506
		1507	sub exists($) {
1067	my ($map) = @_;	1508	my ($login) = @_;
1068		1509
1069	my $path = $map->tmpname;	1510	$cf::PLAYER{$login}
1070	defined $path or return;	1511	or !aio_stat path $login
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}	1512	}
1083		1513
1084	# TODO: compatibility cruft, remove when no longer needed	1514	sub find($) {
		1515	return $cf::PLAYER{$_[0]} || do {
		1516	my $login = $_[0];
		1517
		1518	my $guard = cf::lock_acquire "user_find:$login";
		1519
		1520	$cf::PLAYER{$_[0]} || do {
		1521	# rename old playerfiles to new ones
		1522	#TODO: remove when no longer required
		1523	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1524	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1525	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1526	aio_unlink +(playerdir $login) . "/$login.pl";
		1527
		1528	my $f = new_from_file cf::object::thawer path $login
		1529	or return;
		1530
		1531	my $pl = cf::player::load_pl $f
		1532	or return;
		1533
		1534	local $cf::PLAYER_LOADING{$login} = $pl;
		1535	$f->resolve_delayed_derefs;
		1536	$cf::PLAYER{$login} = $pl
		1537	}
		1538	}
		1539	}
		1540
1085	cf::player->attach (	1541	cf::player->attach (
1086	on_load => sub {	1542	on_load => sub {
1087	my ($pl, $path) = @_;	1543	my ($pl, $path) = @_;
1088		1544
1089	for my $o (all_objects $pl->ob) {	1545	# restore slots saved in save, below
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1546	my $slots = delete $pl->{_slots};
1091	$o->set_ob_key_value ("_perl_data");
1092		1547
1093	%$o = %{ Storable::thaw pack "H*", $value };	1548	$pl->ob->current_weapon ($slots->[0]);
1094	}	1549	$pl->combat_ob ($slots->[1]);
1095	}	1550	$pl->ranged_ob ($slots->[2]);
1096	},	1551	},
1097	);	1552	);
1098		1553
1099	#############################################################################	1554	sub save($) {
		1555	my ($pl) = @_;
1100		1556
1101	=head2 CORE EXTENSIONS	1557	return if $pl->{deny_save};
1102		1558
1103	Functions and methods that extend core crossfire objects.	1559	my $path = path $pl;
		1560	my $guard = cf::lock_acquire "user_save:$path";
1104		1561
1105	=head3 cf::player	1562	return if $pl->{deny_save};
		1563
		1564	aio_mkdir playerdir $pl, 0770;
		1565	$pl->{last_save} = $cf::RUNTIME;
		1566
		1567	cf::get_slot 0.01;
		1568
		1569	# save slots, to be restored later
		1570	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1571
		1572	$pl->save_pl ($path);
		1573	cf::cede_to_tick;
		1574	}
		1575
		1576	sub new($) {
		1577	my ($login) = @_;
		1578
		1579	my $self = create;
		1580
		1581	$self->ob->name ($login);
		1582	$self->{deny_save} = 1;
		1583
		1584	$cf::PLAYER{$login} = $self;
		1585
		1586	$self
		1587	}
		1588
		1589	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1590
		1591	=cut
		1592
		1593	sub send_msg {
		1594	my $ns = shift->ns
		1595	or return;
		1596	$ns->send_msg (@_);
		1597	}
		1598
		1599	=item $pl->quit_character
		1600
		1601	Nukes the player without looking back. If logged in, the connection will
		1602	be destroyed. May block for a long time.
		1603
		1604	=cut
		1605
		1606	sub quit_character {
		1607	my ($pl) = @_;
		1608
		1609	my $name = $pl->ob->name;
		1610
		1611	$pl->{deny_save} = 1;
		1612	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1613
		1614	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1615	$pl->deactivate;
		1616	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1617	$pl->ob->check_score;
		1618	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1619	$pl->ns->destroy if $pl->ns;
		1620
		1621	my $path = playerdir $pl;
		1622	my $temp = "$path~$cf::RUNTIME~deleting~";
		1623	aio_rename $path, $temp;
		1624	delete $cf::PLAYER{$pl->ob->name};
		1625	$pl->destroy;
		1626
		1627	my $prefix = qr<^~\Q$name\E/>;
		1628
		1629	# nuke player maps
		1630	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1631
		1632	IO::AIO::aio_rmtree $temp;
		1633	}
		1634
		1635	=item $pl->kick
		1636
		1637	Kicks a player out of the game. This destroys the connection.
		1638
		1639	=cut
		1640
		1641	sub kick {
		1642	my ($pl, $kicker) = @_;
		1643
		1644	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1645	$pl->killer ("kicked");
		1646	$pl->ns->destroy;
		1647	}
		1648
		1649	=item cf::player::list_logins
		1650
		1651	Returns am arrayref of all valid playernames in the system, can take a
		1652	while and may block, so not sync_job-capable, ever.
		1653
		1654	=cut
		1655
		1656	sub list_logins {
		1657	my $dirs = aio_readdir $PLAYERDIR
		1658	or return [];
		1659
		1660	my @logins;
		1661
		1662	for my $login (@$dirs) {
		1663	my $path = path $login;
		1664
		1665	# a .pst is a dead give-away for a valid player
		1666	# if no pst file found, open and chekc for blocked users
		1667	if (aio_stat "$path.pst") {
		1668	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1669	aio_read $fh, 0, 512, my $buf, 0 or next;
		1670	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1671	}
		1672
		1673	utf8::decode $login;
		1674	push @logins, $login;
		1675	}
		1676
		1677	\@logins
		1678	}
		1679
		1680	=item $player->maps
		1681
		1682	Returns an arrayref of map paths that are private for this
		1683	player. May block.
		1684
		1685	=cut
		1686
		1687	sub maps($) {
		1688	my ($pl) = @_;
		1689
		1690	$pl = ref $pl ? $pl->ob->name : $pl;
		1691
		1692	my $files = aio_readdir playerdir $pl
		1693	or return;
		1694
		1695	my @paths;
		1696
		1697	for (@$files) {
		1698	utf8::decode $_;
		1699	next if /\.(?:pl|pst)$/;
		1700	next unless /^$PATH_SEP/o;
		1701
		1702	push @paths, cf::map::normalise "~$pl/$_";
		1703	}
		1704
		1705	\@paths
		1706	}
		1707
		1708	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1709
		1710	Expand deliantra pod fragments into protocol xml.
		1711
		1712	=item $player->ext_reply ($msgid, @msg)
		1713
		1714	Sends an ext reply to the player.
		1715
		1716	=cut
		1717
		1718	sub ext_reply($$@) {
		1719	my ($self, $id, @msg) = @_;
		1720
		1721	$self->ns->ext_reply ($id, @msg)
		1722	}
		1723
		1724	=item $player->ext_msg ($type, @msg)
		1725
		1726	Sends an ext event to the client.
		1727
		1728	=cut
		1729
		1730	sub ext_msg($$@) {
		1731	my ($self, $type, @msg) = @_;
		1732
		1733	$self->ns->ext_msg ($type, @msg);
		1734	}
		1735
		1736	=head3 cf::region
1106		1737
1107	=over 4	1738	=over 4
1108		1739
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut	1740	=cut
1114		1741
1115	sub cf::player::exists($) {	1742	package cf::region;
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119		1743
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)	1744	=item cf::region::find_by_path $path
1121		1745
1122	Sends an ext reply to the player.	1746	Tries to decuce the likely region for a map knowing only its path.
1123		1747
1124	=cut	1748	=cut
1125		1749
1126	sub cf::player::ext_reply($$$%) {	1750	sub find_by_path($) {
1127	my ($self, $id, %msg) = @_;	1751	my ($path) = @_;
1128		1752
1129	$msg{msgid} = $id;	1753	my ($match, $specificity);
1130		1754
1131	$self->send ("ext " . to_json \%msg);	1755	for my $region (list) {
		1756	if ($region->{match} && $path =~ $region->{match}) {
		1757	($match, $specificity) = ($region, $region->specificity)
		1758	if $region->specificity > $specificity;
		1759	}
		1760	}
		1761
		1762	$match
1132	}	1763	}
1133		1764
1134	=back	1765	=back
1135
1136		1766
1137	=head3 cf::map	1767	=head3 cf::map
1138		1768
1139	=over 4	1769	=over 4
1140		1770
…		…
1143	package cf::map;	1773	package cf::map;
1144		1774
1145	use Fcntl;	1775	use Fcntl;
1146	use Coro::AIO;	1776	use Coro::AIO;
1147		1777
		1778	use overload
		1779	'""' => \&as_string,
		1780	fallback => 1;
		1781
1148	our $MAX_RESET = 3600;	1782	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1783	our $DEFAULT_RESET = 3000;
1150		1784
1151	sub generate_random_map {	1785	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1786	my ($self, $rmp) = @_;
		1787
		1788	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1153		1789
1154	# mit "rum" bekleckern, nicht	1790	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1791	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1792	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1793	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1794	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1795	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1796	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1797	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1798	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1799	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1800	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1801	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1802	(cf::region::find $rmp->{region}), $rmp->{custom}
		1803	)
1168	}	1804	}
1169		1805
1170	# and all this just because we cannot iterate over	1806	=item cf::map->register ($regex, $prio)
1171	# all maps in C++...
1172	sub change_all_map_light {
1173	my ($change) = @_;
1174		1807
1175	$_->change_map_light ($change)	1808	Register a handler for the map path matching the given regex at the
1176	for grep $_->outdoor, values %cf::MAP;	1809	givne priority (higher is better, built-in handlers have priority 0, the
1177	}	1810	default).
1178		1811
1179	sub try_load_header($) {	1812	=cut
		1813
		1814	sub register {
		1815	my (undef, $regex, $prio) = @_;
		1816	my $pkg = caller;
		1817
		1818	no strict;
		1819	push @{"$pkg\::ISA"}, __PACKAGE__;
		1820
		1821	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1822	}
		1823
		1824	# also paths starting with '/'
		1825	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1826
		1827	sub thawer_merge {
		1828	my ($self, $merge) = @_;
		1829
		1830	# we have to keep some variables in memory intact
		1831	local $self->{path};
		1832	local $self->{load_path};
		1833
		1834	$self->SUPER::thawer_merge ($merge);
		1835	}
		1836
		1837	sub normalise {
1180	my ($path) = @_;	1838	my ($path, $base) = @_;
		1839
		1840	$path = "$path"; # make sure its a string
		1841
		1842	$path =~ s/\.map$//;
		1843
		1844	# map plan:
		1845	#
		1846	# /! non-realised random map exit (special hack!)
		1847	# {... are special paths that are not being touched
		1848	# ?xxx/... are special absolute paths
		1849	# ?random/... random maps
		1850	# /... normal maps
		1851	# ~user/... per-player map of a specific user
		1852
		1853	$path =~ s/$PATH_SEP/\//go;
		1854
		1855	# treat it as relative path if it starts with
		1856	# something that looks reasonable
		1857	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1858	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1859
		1860	$base =~ s{[^/]+/?$}{};
		1861	$path = "$base/$path";
		1862	}
		1863
		1864	for ($path) {
		1865	redo if s{//}{/};
		1866	redo if s{/\.?/}{/};
		1867	redo if s{/[^/]+/\.\./}{/};
		1868	}
		1869
		1870	$path
		1871	}
		1872
		1873	sub new_from_path {
		1874	my (undef, $path, $base) = @_;
		1875
		1876	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1877
		1878	$path = normalise $path, $base;
		1879
		1880	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1881	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1882	my $self = bless cf::map::new, $pkg;
		1883	$self->{path} = $path; $self->path ($path);
		1884	$self->init; # pass $1 etc.
		1885	return $self;
		1886	}
		1887	}
		1888
		1889	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1890	()
		1891	}
		1892
		1893	sub init {
		1894	my ($self) = @_;
		1895
		1896	$self
		1897	}
		1898
		1899	sub as_string {
		1900	my ($self) = @_;
		1901
		1902	"$self->{path}"
		1903	}
		1904
		1905	# the displayed name, this is a one way mapping
		1906	sub visible_name {
		1907	&as_string
		1908	}
		1909
		1910	# the original (read-only) location
		1911	sub load_path {
		1912	my ($self) = @_;
		1913
		1914	"$MAPDIR/$self->{path}.map"
		1915	}
		1916
		1917	# the temporary/swap location
		1918	sub save_path {
		1919	my ($self) = @_;
		1920
		1921	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1922	"$TMPDIR/$path.map"
		1923	}
		1924
		1925	# the unique path, undef == no special unique path
		1926	sub uniq_path {
		1927	my ($self) = @_;
		1928
		1929	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1930	"$UNIQUEDIR/$path"
		1931	}
		1932
		1933	sub decay_objects {
		1934	my ($self) = @_;
		1935
		1936	return if $self->{deny_reset};
		1937
		1938	$self->do_decay_objects;
		1939	}
		1940
		1941	sub unlink_save {
		1942	my ($self) = @_;
		1943
		1944	utf8::encode (my $save = $self->save_path);
		1945	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1946	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1947	}
		1948
		1949	sub load_header_from($) {
		1950	my ($self, $path) = @_;
1181		1951
1182	utf8::encode $path;	1952	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1953	my $f = new_from_file cf::object::thawer $path
1184	or return;	1954	or return;
1185		1955
1186	my $map = cf::map::new	1956	$self->_load_header ($f)
1187	or return;	1957	or return;
1188		1958
1189	$map->load_header ($path)	1959	local $MAP_LOADING{$self->{path}} = $self;
		1960	$f->resolve_delayed_derefs;
		1961
		1962	$self->{load_path} = $path;
		1963
		1964	1
		1965	}
		1966
		1967	sub load_header_orig {
		1968	my ($self) = @_;
		1969
		1970	$self->load_header_from ($self->load_path)
		1971	}
		1972
		1973	sub load_header_temp {
		1974	my ($self) = @_;
		1975
		1976	$self->load_header_from ($self->save_path)
		1977	}
		1978
		1979	sub prepare_temp {
		1980	my ($self) = @_;
		1981
		1982	$self->last_access ((delete $self->{last_access})
		1983	|| $cf::RUNTIME); #d#
		1984	# safety
		1985	$self->{instantiate_time} = $cf::RUNTIME
		1986	if $self->{instantiate_time} > $cf::RUNTIME;
		1987	}
		1988
		1989	sub prepare_orig {
		1990	my ($self) = @_;
		1991
		1992	$self->{load_original} = 1;
		1993	$self->{instantiate_time} = $cf::RUNTIME;
		1994	$self->last_access ($cf::RUNTIME);
		1995	$self->instantiate;
		1996	}
		1997
		1998	sub load_header {
		1999	my ($self) = @_;
		2000
		2001	if ($self->load_header_temp) {
		2002	$self->prepare_temp;
		2003	} else {
		2004	$self->load_header_orig
1190	or return;	2005	or return;
		2006	$self->prepare_orig;
		2007	}
1191		2008
1192	$map->{load_path} = $path;	2009	$self->{deny_reset} = 1
		2010	if $self->no_reset;
1193		2011
1194	$map	2012	$self->default_region (cf::region::find_by_path $self->{path})
		2013	unless $self->default_region;
		2014
		2015	1
1195	}	2016	}
1196		2017
1197	sub find;	2018	sub find;
1198	sub find {	2019	sub find {
1199	my ($path, $origin) = @_;	2020	my ($path, $origin) = @_;
1200		2021
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	2022	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		2023
1206	cf::lock_wait "map_find:$key";	2024	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1207
1208	$cf::MAP{$key} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	2025	my $guard2 = cf::lock_acquire "map_find:$path";
1210		2026
1211	# do it the slow way	2027	$cf::MAP{$path} || do {
1212	my $map = try_load_header $path->save_path;	2028	my $map = new_from_path cf::map $path
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	2029	or return;
1228		2030
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	2031	$map->{last_save} = $cf::RUNTIME;
1241		2032
1242	if ($map->should_reset) {	2033	$map->load_header
		2034	or return;
		2035
		2036	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2037	# doing this can freeze the server in a sync job, obviously
		2038	#$cf::WAIT_FOR_TICK->wait;
		2039	undef $guard2;
		2040	undef $guard1;
1243	$map->reset;	2041	$map->reset;
1244	undef $guard;
1245	$map = find $path	2042	return find $path;
1246	or return;
1247	}	2043	}
1248		2044
1249	$cf::MAP{$key} = $map	2045	$cf::MAP{$path} = $map
1250	}	2046	}
1251	}	2047	}
		2048
		2049	sub pre_load { }
		2050	#sub post_load { } # XS
1252		2051
1253	sub load {	2052	sub load {
1254	my ($self) = @_;	2053	my ($self) = @_;
1255		2054
		2055	local $self->{deny_reset} = 1; # loading can take a long time
		2056
1256	my $path = $self->{path};	2057	my $path = $self->{path};
		2058
		2059	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2060	my $guard = cf::lock_acquire "map_data:$path";
1258		2061
		2062	return unless $self->valid;
1259	return if $self->in_memory != cf::MAP_SWAPPED;	2063	return unless $self->in_memory == cf::MAP_SWAPPED;
1260		2064
1261	$self->in_memory (cf::MAP_LOADING);	2065	$self->in_memory (cf::MAP_LOADING);
1262		2066
1263	$self->alloc;	2067	$self->alloc;
1264	$self->load_objects ($self->{load_path}, 1)	2068
		2069	$self->pre_load;
		2070	cf::cede_to_tick;
		2071
		2072	my $f = new_from_file cf::object::thawer $self->{load_path};
		2073	$f->skip_block;
		2074	$self->_load_objects ($f)
1265	or return;	2075	or return;
1266		2076
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2077	$self->post_load_original
1268	if delete $self->{load_original};	2078	if delete $self->{load_original};
1269		2079
1270	if (my $uniq = $path->uniq_path) {	2080	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	2081	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	2082	unless (aio_stat $uniq) {
		2083	if (my $f = new_from_file cf::object::thawer $uniq) {
1273	$self->clear_unique_items;	2084	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	2085	$self->_load_objects ($f);
		2086	$f->resolve_delayed_derefs;
		2087	}
1275	}	2088	}
1276	}	2089	}
1277		2090
		2091	$f->resolve_delayed_derefs;
		2092
		2093	cf::cede_to_tick;
1278	# now do the right thing for maps	2094	# now do the right thing for maps
1279	$self->link_multipart_objects;	2095	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	2096	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	2097	unless $self->difficulty;
		2098	cf::cede_to_tick;
		2099
		2100	unless ($self->{deny_activate}) {
		2101	$self->decay_objects;
		2102	$self->fix_auto_apply;
		2103	$self->update_buttons;
		2104	cf::cede_to_tick;
1291	$self->activate;	2105	$self->activate;
1292	}	2106	}
1293		2107
		2108	$self->{last_save} = $cf::RUNTIME;
		2109	$self->last_access ($cf::RUNTIME);
		2110
1294	$self->in_memory (cf::MAP_IN_MEMORY);	2111	$self->in_memory (cf::MAP_ACTIVE);
		2112	}
		2113
		2114	$self->post_load;
		2115	}
		2116
		2117	# customize the map for a given player, i.e.
		2118	# return the _real_ map. used by e.g. per-player
		2119	# maps to change the path to ~playername/mappath
		2120	sub customise_for {
		2121	my ($self, $ob) = @_;
		2122
		2123	return find "~" . $ob->name . "/" . $self->{path}
		2124	if $self->per_player;
		2125
		2126	# return find "?party/" . $ob->name . "/" . $self->{path}
		2127	# if $self->per_party;
		2128
		2129	$self
		2130	}
		2131
		2132	# find and load all maps in the 3x3 area around a map
		2133	sub load_neighbours {
		2134	my ($map) = @_;
		2135
		2136	my @neigh; # diagonal neighbours
		2137
		2138	for (0 .. 3) {
		2139	my $neigh = $map->tile_path ($_)
		2140	or next;
		2141	$neigh = find $neigh, $map
		2142	or next;
		2143	$neigh->load;
		2144
		2145	push @neigh,
		2146	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2147	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2148	}
		2149
		2150	for (grep defined $_->[0], @neigh) {
		2151	my ($path, $origin) = @$_;
		2152	my $neigh = find $path, $origin
		2153	or next;
		2154	$neigh->load;
		2155	}
1295	}	2156	}
1296		2157
1297	sub find_sync {	2158	sub find_sync {
1298	my ($path, $origin) = @_;	2159	my ($path, $origin) = @_;
1299		2160
1300	cf::sync_job { cf::map::find $path, $origin }	2161	cf::sync_job { find $path, $origin }
1301	}	2162	}
1302		2163
1303	sub do_load_sync {	2164	sub do_load_sync {
1304	my ($map) = @_;	2165	my ($map) = @_;
1305		2166
		2167	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2168	if $Coro::current == $Coro::main;
		2169
1306	cf::sync_job { $map->load };	2170	cf::sync_job { $map->load };
		2171	}
		2172
		2173	our %MAP_PREFETCH;
		2174	our $MAP_PREFETCHER = undef;
		2175
		2176	sub find_async {
		2177	my ($path, $origin, $load) = @_;
		2178
		2179	$path = normalise $path, $origin && $origin->{path};
		2180
		2181	if (my $map = $cf::MAP{$path}) {
		2182	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2183	}
		2184
		2185	$MAP_PREFETCH{$path} |= $load;
		2186
		2187	$MAP_PREFETCHER ||= cf::async {
		2188	$Coro::current->{desc} = "map prefetcher";
		2189
		2190	while (%MAP_PREFETCH) {
		2191	while (my ($k, $v) = each %MAP_PREFETCH) {
		2192	if (my $map = find $k) {
		2193	$map->load if $v;
		2194	}
		2195
		2196	delete $MAP_PREFETCH{$k};
		2197	}
		2198	}
		2199	undef $MAP_PREFETCHER;
		2200	};
		2201	$MAP_PREFETCHER->prio (6);
		2202
		2203	()
1307	}	2204	}
1308		2205
1309	sub save {	2206	sub save {
1310	my ($self) = @_;	2207	my ($self) = @_;
1311		2208
		2209	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2210
1312	$self->{last_save} = $cf::RUNTIME;	2211	$self->{last_save} = $cf::RUNTIME;
1313		2212
1314	return unless $self->dirty;	2213	return unless $self->dirty;
1315		2214
1316	my $save = $self->{path}->save_path; utf8::encode $save;	2215	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2216	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		2217
1319	$self->{load_path} = $save;	2218	$self->{load_path} = $save;
1320		2219
1321	return if $self->{deny_save};	2220	return if $self->{deny_save};
1322		2221
1323	local $self->{last_access} = $self->last_access;#d#	2222	local $self->{last_access} = $self->last_access;#d#
1324		2223
		2224	cf::async {
		2225	$Coro::current->{desc} = "map player save";
		2226	$_->contr->save for $self->players;
		2227	};
		2228
		2229	cf::get_slot 0.02;
		2230
1325	if ($uniq) {	2231	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2232	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	2233	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	2234	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2235	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	2236	}
1331	}	2237	}
1332		2238
1333	sub swap_out {	2239	sub swap_out {
1334	my ($self) = @_;	2240	my ($self) = @_;
1335		2241
1336	# save first because save cedes	2242	# save first because save cedes
1337	$self->save;	2243	$self->save;
1338		2244
		2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2246
1339	return if $self->players;	2247	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	2248	return if $self->in_memory != cf::MAP_ACTIVE;
1341	return if $self->{deny_save};	2249	return if $self->{deny_save};
1342		2250
		2251	$self->in_memory (cf::MAP_SWAPPED);
		2252
		2253	$self->deactivate;
		2254	$_->clear_links_to ($self) for values %cf::MAP;
1343	$self->clear;	2255	$self->clear;
1344	$self->in_memory (cf::MAP_SWAPPED);
1345	}	2256	}
1346		2257
1347	sub reset_at {	2258	sub reset_at {
1348	my ($self) = @_;	2259	my ($self) = @_;
1349		2260
1350	# TODO: safety, remove and allow resettable per-player maps	2261	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};
1352	return 1e99 if $self->{deny_reset};	2262	return 1e99 if $self->{deny_reset};
1353		2263
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2264	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2265	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		2266
…		…
1361	my ($self) = @_;	2271	my ($self) = @_;
1362		2272
1363	$self->reset_at <= $cf::RUNTIME	2273	$self->reset_at <= $cf::RUNTIME
1364	}	2274	}
1365		2275
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	2276	sub reset {
1388	my ($self) = @_;	2277	my ($self) = @_;
1389		2278
		2279	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2280
1390	return if $self->players;	2281	return if $self->players;
1391	return if $self->{path}{user_rel};#d#
1392		2282
1393	warn "resetting map ", $self->path;#d#	2283	warn "resetting map ", $self->path, "\n";
		2284
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# need to save uniques path
		2288	unless ($self->{deny_save}) {
		2289	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2290
		2291	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2292	if $uniq;
		2293	}
1394		2294
1395	delete $cf::MAP{$self->path};	2295	delete $cf::MAP{$self->path};
1396		2296
		2297	$self->deactivate;
1397	$_->clear_links_to ($self) for values %cf::MAP;	2298	$_->clear_links_to ($self) for values %cf::MAP;
		2299	$self->clear;
1398		2300
1399	$self->unlink_save;	2301	$self->unlink_save;
1400	$self->destroy;	2302	$self->destroy;
1401	}	2303	}
1402		2304
1403	my $nuke_counter = "aaaa";	2305	my $nuke_counter = "aaaa";
1404		2306
1405	sub nuke {	2307	sub nuke {
1406	my ($self) = @_;	2308	my ($self) = @_;
1407		2309
		2310	{
		2311	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2312
		2313	delete $cf::MAP{$self->path};
		2314
		2315	$self->unlink_save;
		2316
		2317	bless $self, "cf::map";
		2318	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	2319	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	2320	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	2321	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2322
		2323	$cf::MAP{$self->path} = $self;
		2324	}
		2325
1411	$self->reset; # polite request, might not happen	2326	$self->reset; # polite request, might not happen
1412	}	2327	}
1413		2328
1414	sub customise_for {	2329	=item $maps = cf::map::tmp_maps
1415	my ($map, $ob) = @_;
1416		2330
1417	if ($map->per_player) {	2331	Returns an arrayref with all map paths of currently instantiated and saved
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2332	maps. May block.
		2333
		2334	=cut
		2335
		2336	sub tmp_maps() {
1419	}	2337	[
1420		2338	map {
1421	$map	2339	utf8::decode $_;
		2340	/\.map$/
		2341	? normalise $_
		2342	: ()
		2343	} @{ aio_readdir $TMPDIR or [] }
		2344	]
1422	}	2345	}
1423		2346
1424	sub emergency_save {	2347	=item $maps = cf::map::random_maps
1425	my $freeze_guard = cf::freeze_mainloop;
1426		2348
1427	warn "enter emergency map save\n";	2349	Returns an arrayref with all map paths of currently instantiated and saved
		2350	random maps. May block.
1428		2351
1429	cf::sync_job {	2352	=cut
1430	warn "begin emergency map save\n";	2353
1431	$_->save for values %cf::MAP;	2354	sub random_maps() {
		2355	[
		2356	map {
		2357	utf8::decode $_;
		2358	/\.map$/
		2359	? normalise "?random/$_"
		2360	: ()
		2361	} @{ aio_readdir $RANDOMDIR or [] }
		2362	]
		2363	}
		2364
		2365	=item cf::map::unique_maps
		2366
		2367	Returns an arrayref of paths of all shared maps that have
		2368	instantiated unique items. May block.
		2369
		2370	=cut
		2371
		2372	sub unique_maps() {
		2373	[
		2374	map {
		2375	utf8::decode $_;
		2376	s/\.map$//; # TODO future compatibility hack
		2377	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2378	? ()
		2379	: normalise $_
		2380	} @{ aio_readdir $UNIQUEDIR or [] }
		2381	]
		2382	}
		2383
		2384	=item cf::map::static_maps
		2385
		2386	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2387	file in the shared directory excluding F</styles> and F</editor>). May
		2388	block.
		2389
		2390	=cut
		2391
		2392	sub static_maps() {
		2393	my @dirs = "";
		2394	my @maps;
		2395
		2396	while (@dirs) {
		2397	my $dir = shift @dirs;
		2398
		2399	next if $dir eq "/styles" || $dir eq "/editor";
		2400
		2401	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2402	or return;
		2403
		2404	for (@$files) {
		2405	s/\.map$// or next;
		2406	utf8::decode $_;
		2407	push @maps, "$dir/$_";
		2408	}
		2409
		2410	push @dirs, map "$dir/$_", @$dirs;
1432	};	2411	}
1433		2412
1434	warn "end emergency map save\n";	2413	\@maps
		2414	}
		2415
		2416	=back
		2417
		2418	=head3 cf::object
		2419
		2420	=cut
		2421
		2422	package cf::object;
		2423
		2424	=over 4
		2425
		2426	=item $ob->inv_recursive
		2427
		2428	Returns the inventory of the object I<and> their inventories, recursively,
		2429	but I<not> the object itself.
		2430
		2431	=cut
		2432
		2433	sub inv_recursive_;
		2434	sub inv_recursive_ {
		2435	map { $_, inv_recursive_ $_->inv } @_
		2436	}
		2437
		2438	sub inv_recursive {
		2439	inv_recursive_ inv $_[0]
		2440	}
		2441
		2442	=item $ref = $ob->ref
		2443
		2444	Creates and returns a persistent reference to an object that can be stored as a string.
		2445
		2446	=item $ob = cf::object::deref ($refstring)
		2447
		2448	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2449	even if the object actually exists. May block.
		2450
		2451	=cut
		2452
		2453	sub deref {
		2454	my ($ref) = @_;
		2455
		2456	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2457	my ($uuid, $name) = ($1, $2);
		2458	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2459	or return;
		2460	$pl->ob->uuid eq $uuid
		2461	or return;
		2462
		2463	$pl->ob
		2464	} else {
		2465	warn "$ref: cannot resolve object reference\n";
		2466	undef
		2467	}
1435	}	2468	}
1436		2469
1437	package cf;	2470	package cf;
1438		2471
1439	=back	2472	=back
1440
1441		2473
1442	=head3 cf::object::player	2474	=head3 cf::object::player
1443		2475
1444	=over 4	2476	=over 4
1445		2477
…		…
1448	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2480	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1449	can be C<undef>. Does the right thing when the player is currently in a	2481	can be C<undef>. Does the right thing when the player is currently in a
1450	dialogue with the given NPC character.	2482	dialogue with the given NPC character.
1451		2483
1452	=cut	2484	=cut
		2485
		2486	our $SAY_CHANNEL = {
		2487	id => "say",
		2488	title => "Map",
		2489	reply => "say ",
		2490	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2491	};
		2492
		2493	our $CHAT_CHANNEL = {
		2494	id => "chat",
		2495	title => "Chat",
		2496	reply => "chat ",
		2497	tooltip => "Player chat and shouts, global to the server.",
		2498	};
1453		2499
1454	# rough implementation of a future "reply" method that works	2500	# rough implementation of a future "reply" method that works
1455	# with dialog boxes.	2501	# with dialog boxes.
1456	#TODO: the first argument must go, split into a $npc->reply_to ( method	2502	#TODO: the first argument must go, split into a $npc->reply_to ( method
1457	sub cf::object::player::reply($$$;$) {	2503	sub cf::object::player::reply($$$;$) {
…		…
1459		2505
1460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2506	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1461		2507
1462	if ($self->{record_replies}) {	2508	if ($self->{record_replies}) {
1463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2509	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2510
1464	} else {	2511	} else {
		2512	my $pl = $self->contr;
		2513
		2514	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2515	my $dialog = $pl->{npc_dialog};
		2516	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2517
		2518	} else {
1465	$msg = $npc->name . " says: $msg" if $npc;	2519	$msg = $npc->name . " says: $msg" if $npc;
1466	$self->message ($msg, $flags);	2520	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2521	}
1467	}	2522	}
		2523	}
		2524
		2525	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2526
		2527	=cut
		2528
		2529	sub cf::object::send_msg {
		2530	my $pl = shift->contr
		2531	or return;
		2532	$pl->send_msg (@_);
1468	}	2533	}
1469		2534
1470	=item $player_object->may ("access")	2535	=item $player_object->may ("access")
1471		2536
1472	Returns wether the given player is authorized to access resource "access"	2537	Returns wether the given player is authorized to access resource "access"
…		…
1485		2550
1486	=item $player_object->enter_link	2551	=item $player_object->enter_link
1487		2552
1488	Freezes the player and moves him/her to a special map (C<{link}>).	2553	Freezes the player and moves him/her to a special map (C<{link}>).
1489		2554
1490	The player should be reaosnably safe there for short amounts of time. You	2555	The player should be reasonably safe there for short amounts of time (e.g.
1491	I<MUST> call C<leave_link> as soon as possible, though.	2556	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2557	though, as the palyer cannot control the character while it is on the link
		2558	map.
		2559
		2560	Will never block.
1492		2561
1493	=item $player_object->leave_link ($map, $x, $y)	2562	=item $player_object->leave_link ($map, $x, $y)
1494		2563
1495	Moves the player out of the specila link map onto the given map. If the	2564	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	2565	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	2566	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	2567	fails, to the emergency map position.
1499		2568
1500	Might block.	2569	Might block.
1501		2570
1502	=cut	2571	=cut
		2572
		2573	sub link_map {
		2574	unless ($LINK_MAP) {
		2575	$LINK_MAP = cf::map::find "{link}"
		2576	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2577	$LINK_MAP->load;
		2578	}
		2579
		2580	$LINK_MAP
		2581	}
1503		2582
1504	sub cf::object::player::enter_link {	2583	sub cf::object::player::enter_link {
1505	my ($self) = @_;	2584	my ($self) = @_;
1506		2585
1507	$self->deactivate_recursive;	2586	$self->deactivate_recursive;
1508		2587
1509	return if $self->map == $LINK_MAP;	2588	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		2589
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2590	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	2591	if $self->map && $self->map->{path} ne "{link}";
1513		2592
1514	$self->enter_map ($LINK_MAP, 20, 20);	2593	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	2594	}
1516		2595
1517	sub cf::object::player::leave_link {	2596	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	2597	my ($self, $map, $x, $y) = @_;
		2598
		2599	return unless $self->contr->active;
1519		2600
1520	my $link_pos = delete $self->{_link_pos};	2601	my $link_pos = delete $self->{_link_pos};
1521		2602
1522	unless ($map) {	2603	unless ($map) {
1523	# restore original map position	2604	# restore original map position
…		…
1534	($x, $y) = (-1, -1)	2615	($x, $y) = (-1, -1)
1535	unless (defined $x) && (defined $y);	2616	unless (defined $x) && (defined $y);
1536		2617
1537	# use -1 or undef as default coordinates, not 0, 0	2618	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	2619	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	2620	if $x <= 0 && $y <= 0;
1540		2621
1541	$map->load;	2622	$map->load;
		2623	$map->load_neighbours;
1542		2624
		2625	return unless $self->contr->active;
		2626
		2627	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2628	$self->enter_map ($map, $x, $y);
		2629
		2630	# only activate afterwards, to support waiting in hooks
1543	$self->activate_recursive;	2631	$self->activate_recursive;
1544	$self->enter_map ($map, $x, $y);
1545	}	2632	}
1546		2633
1547	cf::player->attach (	2634	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1548	on_logout => sub {
1549	my ($pl) = @_;
1550		2635
1551	# abort map switching before logout	2636	Moves the player to the given map-path and coordinates by first freezing
1552	if ($pl->ob->{_link_pos}) {	2637	her, loading and preparing them map, calling the provided $check callback
1553	cf::sync_job {	2638	that has to return the map if sucecssful, and then unfreezes the player on
1554	$pl->ob->leave_link	2639	the new (success) or old (failed) map position. In either case, $done will
1555	};	2640	be called at the end of this process.
1556	}
1557	},
1558	on_login => sub {
1559	my ($pl) = @_;
1560		2641
1561	# try to abort aborted map switching on player login :)	2642	Note that $check will be called with a potentially non-loaded map, so if
1562	# should happen only on crashes	2643	it needs a loaded map it has to call C<< ->load >>.
1563	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;
1565	cf::async {
1566	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;
1570	};
1571	}
1572	},
1573	);
1574		2644
1575	=item $player_object->goto_map ($path, $x, $y)
1576
1577	=cut	2645	=cut
1578		2646
		2647	our $GOTOGEN;
		2648
1579	sub cf::object::player::goto_map {	2649	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	2650	my ($self, $path, $x, $y, $check, $done) = @_;
		2651
		2652	# do generation counting so two concurrent goto's will be executed in-order
		2653	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		2654
1582	$self->enter_link;	2655	$self->enter_link;
1583		2656
1584	(cf::async {	2657	(async {
1585	$path = new cf::path $path;	2658	$Coro::current->{desc} = "player::goto $path $x $y";
1586		2659
1587	my $map = cf::map::find $path->as_string;	2660	# *tag paths override both path and x|y
		2661	if ($path =~ /^\*(.*)$/) {
		2662	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2663	my $ob = $obs[rand @obs];
		2664
		2665	# see if we actually can go there
		2666	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2667	$ob = $obs[rand @obs];
		2668	} else {
		2669	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2670	}
		2671	# else put us there anyways for now #d#
		2672
		2673	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2674	} else {
		2675	($path, $x, $y) = (undef, undef, undef);
		2676	}
		2677	}
		2678
		2679	my $map = eval {
		2680	my $map = defined $path ? cf::map::find $path : undef;
		2681
		2682	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	2683	$map = $map->customise_for ($self);
1589		2684	$map = $check->($map) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	2685	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2686	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2687	}
1594		2688
		2689	$map
		2690	};
		2691
		2692	if ($@) {
		2693	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2694	LOG llevError | logBacktrace, Carp::longmess $@;
		2695	}
		2696
		2697	if ($gen == $self->{_goto_generation}) {
		2698	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	2699	$self->leave_link ($map, $x, $y);
		2700	}
		2701
		2702	$done->() if $done;
1596	})->prio (1);	2703	})->prio (1);
1597	}	2704	}
1598		2705
1599	=item $player_object->enter_exit ($exit_object)	2706	=item $player_object->enter_exit ($exit_object)
1600		2707
…		…
1602		2709
1603	sub parse_random_map_params {	2710	sub parse_random_map_params {
1604	my ($spec) = @_;	2711	my ($spec) = @_;
1605		2712
1606	my $rmp = { # defaults	2713	my $rmp = { # defaults
1607	xsize => 10,	2714	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2715	ysize => (cf::rndm 15, 40),
		2716	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2717	#layout => string,
1609	};	2718	};
1610		2719
1611	for (split /\n/, $spec) {	2720	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2721	my ($k, $v) = split /\s+/, $_, 2;
1613		2722
…		…
1625	# that depends on the exit object	2734	# that depends on the exit object
1626		2735
1627	my $rmp = parse_random_map_params $exit->msg;	2736	my $rmp = parse_random_map_params $exit->msg;
1628		2737
1629	if ($exit->map) {	2738	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2739	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2740	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2741	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2742	$rmp->{origin_y} = $exit->y;
		2743
		2744	$exit->map->touch;
1634	}	2745	}
1635		2746
1636	$rmp->{random_seed} ||= $exit->random_seed;	2747	$rmp->{random_seed} ||= $exit->random_seed;
1637		2748
1638	my $data = cf::to_json $rmp;	2749	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1639	my $md5 = Digest::MD5::md5_hex $data;	2750	my $md5 = Digest::MD5::md5_hex $data;
		2751	my $meta = "$RANDOMDIR/$md5.meta";
1640		2752
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2753	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2754	aio_write $fh, 0, (length $data), $data, 0;
		2755	undef $fh;
		2756	aio_rename "$meta~", $meta;
1643		2757
		2758	my $slaying = "?random/$md5";
		2759
		2760	if ($exit->valid) {
1644	$exit->slaying ("?random/$md5");	2761	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2762	$exit->msg (undef);
		2763	}
1646	}	2764	}
1647	}	2765	}
1648		2766
1649	sub cf::object::player::enter_exit {	2767	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2768	my ($self, $exit) = @_;
1651		2769
1652	return unless $self->type == cf::PLAYER;	2770	return unless $self->type == cf::PLAYER;
1653		2771
1654	$self->enter_link;	2772	$self->enter_link;
1655		2773
1656	(cf::async {	2774	(async {
1657	$self->deactivate_recursive; # just to be sure	2775	$Coro::current->{desc} = "enter_exit";
		2776
1658	unless (eval {	2777	unless (eval {
		2778	$self->deactivate_recursive; # just to be sure
		2779
		2780	# random map handling
		2781	{
		2782	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2783
1659	prepare_random_map $exit	2784	prepare_random_map $exit
1660	if $exit->slaying eq "/!";	2785	if $exit->slaying eq "/!";
		2786	}
1661		2787
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2788	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2789	my $x = $exit->stats->hp;
		2790	my $y = $exit->stats->sp;
1664		2791
		2792	$self->goto ($map, $x, $y);
		2793
		2794	# if exit is damned, update players death & WoR home-position
		2795	$self->contr->savebed ($map, $x, $y)
		2796	if $exit->flag (cf::FLAG_DAMNED);
		2797
1665	1;	2798	1
1666	}) {	2799	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2800	$self->message ("Something went wrong deep within the deliantra server. "
1668	. "I'll try to bring you back to the map you were before. "	2801	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2802	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2803	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2804
1672	warn "ERROR in enter_exit: $@";	2805	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2806	$self->leave_link;
1674	}	2807	}
1675	})->prio (1);	2808	})->prio (1);
…		…
1688		2821
1689	sub cf::client::send_drawinfo {	2822	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2823	my ($self, $text, $flags) = @_;
1691		2824
1692	utf8::encode $text;	2825	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2826	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2827	}
1695		2828
		2829	=item $client->send_big_packet ($pkt)
		2830
		2831	Like C<send_packet>, but tries to compress large packets, and fragments
		2832	them as required.
		2833
		2834	=cut
		2835
		2836	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2837
		2838	sub cf::client::send_big_packet {
		2839	my ($self, $pkt) = @_;
		2840
		2841	# try lzf for large packets
		2842	$pkt = "lzf " . Compress::LZF::compress $pkt
		2843	if 1024 <= length $pkt and $self->{can_lzf};
		2844
		2845	# split very large packets
		2846	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2847	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2848	$pkt = "frag";
		2849	}
		2850
		2851	$self->send_packet ($pkt);
		2852	}
		2853
		2854	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2855
		2856	Send a drawinfo or msg packet to the client, formatting the msg for the
		2857	client if neccessary. C<$type> should be a string identifying the type of
		2858	the message, with C<log> being the default. If C<$color> is negative, suppress
		2859	the message unless the client supports the msg packet.
		2860
		2861	=cut
		2862
		2863	# non-persistent channels (usually the info channel)
		2864	our %CHANNEL = (
		2865	"c/motd" => {
		2866	id => "infobox",
		2867	title => "MOTD",
		2868	reply => undef,
		2869	tooltip => "The message of the day",
		2870	},
		2871	"c/identify" => {
		2872	id => "infobox",
		2873	title => "Identify",
		2874	reply => undef,
		2875	tooltip => "Items recently identified",
		2876	},
		2877	"c/examine" => {
		2878	id => "infobox",
		2879	title => "Examine",
		2880	reply => undef,
		2881	tooltip => "Signs and other items you examined",
		2882	},
		2883	"c/shopinfo" => {
		2884	id => "infobox",
		2885	title => "Shop Info",
		2886	reply => undef,
		2887	tooltip => "What your bargaining skill tells you about the shop",
		2888	},
		2889	"c/book" => {
		2890	id => "infobox",
		2891	title => "Book",
		2892	reply => undef,
		2893	tooltip => "The contents of a note or book",
		2894	},
		2895	"c/lookat" => {
		2896	id => "infobox",
		2897	title => "Look",
		2898	reply => undef,
		2899	tooltip => "What you saw there",
		2900	},
		2901	"c/who" => {
		2902	id => "infobox",
		2903	title => "Players",
		2904	reply => undef,
		2905	tooltip => "Shows players who are currently online",
		2906	},
		2907	"c/body" => {
		2908	id => "infobox",
		2909	title => "Body Parts",
		2910	reply => undef,
		2911	tooltip => "Shows which body parts you posess and are available",
		2912	},
		2913	"c/statistics" => {
		2914	id => "infobox",
		2915	title => "Statistics",
		2916	reply => undef,
		2917	tooltip => "Shows your primary statistics",
		2918	},
		2919	"c/skills" => {
		2920	id => "infobox",
		2921	title => "Skills",
		2922	reply => undef,
		2923	tooltip => "Shows your experience per skill and item power",
		2924	},
		2925	"c/shopitems" => {
		2926	id => "infobox",
		2927	title => "Shop Items",
		2928	reply => undef,
		2929	tooltip => "Shows the items currently for sale in this shop",
		2930	},
		2931	"c/resistances" => {
		2932	id => "infobox",
		2933	title => "Resistances",
		2934	reply => undef,
		2935	tooltip => "Shows your resistances",
		2936	},
		2937	"c/pets" => {
		2938	id => "infobox",
		2939	title => "Pets",
		2940	reply => undef,
		2941	tooltip => "Shows information abotu your pets/a specific pet",
		2942	},
		2943	"c/perceiveself" => {
		2944	id => "infobox",
		2945	title => "Perceive Self",
		2946	reply => undef,
		2947	tooltip => "You gained detailed knowledge about yourself",
		2948	},
		2949	"c/uptime" => {
		2950	id => "infobox",
		2951	title => "Uptime",
		2952	reply => undef,
		2953	tooltip => "How long the server has been running since last restart",
		2954	},
		2955	"c/mapinfo" => {
		2956	id => "infobox",
		2957	title => "Map Info",
		2958	reply => undef,
		2959	tooltip => "Information related to the maps",
		2960	},
		2961	"c/party" => {
		2962	id => "party",
		2963	title => "Party",
		2964	reply => "gsay ",
		2965	tooltip => "Messages and chat related to your party",
		2966	},
		2967	"c/death" => {
		2968	id => "death",
		2969	title => "Death",
		2970	reply => undef,
		2971	tooltip => "Reason for and more info about your most recent death",
		2972	},
		2973	"c/say" => $SAY_CHANNEL,
		2974	"c/chat" => $CHAT_CHANNEL,
		2975	);
		2976
		2977	sub cf::client::send_msg {
		2978	my ($self, $channel, $msg, $color, @extra) = @_;
		2979
		2980	$msg = $self->pl->expand_cfpod ($msg)
		2981	unless $color & cf::NDI_VERBATIM;
		2982
		2983	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2984
		2985	# check predefined channels, for the benefit of C
		2986	if ($CHANNEL{$channel}) {
		2987	$channel = $CHANNEL{$channel};
		2988
		2989	$self->ext_msg (channel_info => $channel);
		2990	$channel = $channel->{id};
		2991
		2992	} elsif (ref $channel) {
		2993	# send meta info to client, if not yet sent
		2994	unless (exists $self->{channel}{$channel->{id}}) {
		2995	$self->{channel}{$channel->{id}} = $channel;
		2996	$self->ext_msg (channel_info => $channel);
		2997	}
		2998
		2999	$channel = $channel->{id};
		3000	}
		3001
		3002	return unless @extra || length $msg;
		3003
		3004	# default colour, mask it out
		3005	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3006	if $color & cf::NDI_DEF;
		3007
		3008	my $pkt = "msg "
		3009	. $self->{json_coder}->encode (
		3010	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3011	);
		3012
		3013	$self->send_big_packet ($pkt);
		3014	}
		3015
		3016	=item $client->ext_msg ($type, @msg)
		3017
		3018	Sends an ext event to the client.
		3019
		3020	=cut
		3021
		3022	sub cf::client::ext_msg($$@) {
		3023	my ($self, $type, @msg) = @_;
		3024
		3025	if ($self->extcmd == 2) {
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3027	} elsif ($self->extcmd == 1) { # TODO: remove
		3028	push @msg, msgtype => "event_$type";
		3029	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3030	}
		3031	}
		3032
		3033	=item $client->ext_reply ($msgid, @msg)
		3034
		3035	Sends an ext reply to the client.
		3036
		3037	=cut
		3038
		3039	sub cf::client::ext_reply($$@) {
		3040	my ($self, $id, @msg) = @_;
		3041
		3042	if ($self->extcmd == 2) {
		3043	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3044	} elsif ($self->extcmd == 1) {
		3045	#TODO: version 1, remove
		3046	unshift @msg, msgtype => "reply", msgid => $id;
		3047	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3048	}
		3049	}
1696		3050
1697	=item $success = $client->query ($flags, "text", \&cb)	3051	=item $success = $client->query ($flags, "text", \&cb)
1698		3052
1699	Queues a query to the client, calling the given callback with	3053	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3054	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1701	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3055	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1702		3056
1703	Queries can fail, so check the return code. Or don't, as queries will become	3057	Queries can fail, so check the return code. Or don't, as queries will
1704	reliable at some point in the future.	3058	become reliable at some point in the future.
1705		3059
1706	=cut	3060	=cut
1707		3061
1708	sub cf::client::query {	3062	sub cf::client::query {
1709	my ($self, $flags, $text, $cb) = @_;	3063	my ($self, $flags, $text, $cb) = @_;
…		…
1717	utf8::encode $text;	3071	utf8::encode $text;
1718	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3072	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1719		3073
1720	$self->send_packet ($self->{query_queue}[0][0])	3074	$self->send_packet ($self->{query_queue}[0][0])
1721	if @{ $self->{query_queue} } == 1;	3075	if @{ $self->{query_queue} } == 1;
		3076
		3077	1
1722	}	3078	}
1723		3079
1724	cf::client->attach (	3080	cf::client->attach (
		3081	on_connect => sub {
		3082	my ($ns) = @_;
		3083
		3084	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3085	},
1725	on_reply => sub {	3086	on_reply => sub {
1726	my ($ns, $msg) = @_;	3087	my ($ns, $msg) = @_;
1727		3088
1728	# this weird shuffling is so that direct followup queries	3089	# this weird shuffling is so that direct followup queries
1729	# get handled first	3090	# get handled first
1730	my $queue = delete $ns->{query_queue}	3091	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	3092	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		3093
1733	(shift @$queue)->[1]->($msg);	3094	(shift @$queue)->[1]->($msg);
		3095	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		3096
1735	push @{ $ns->{query_queue} }, @$queue;	3097	push @{ $ns->{query_queue} }, @$queue;
1736		3098
1737	if (@{ $ns->{query_queue} } == @$queue) {	3099	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	3100	if (@$queue) {
…		…
1740	} else {	3102	} else {
1741	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3103	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1742	}	3104	}
1743	}	3105	}
1744	},	3106	},
		3107	on_exticmd => sub {
		3108	my ($ns, $buf) = @_;
		3109
		3110	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3111
		3112	if (ref $msg) {
		3113	my ($type, $reply, @payload) =
		3114	"ARRAY" eq ref $msg
		3115	? @$msg
		3116	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3117
		3118	my @reply;
		3119
		3120	if (my $cb = $EXTICMD{$type}) {
		3121	@reply = $cb->($ns, @payload);
		3122	}
		3123
		3124	$ns->ext_reply ($reply, @reply)
		3125	if $reply;
		3126
		3127	} else {
		3128	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3129	}
		3130
		3131	cf::override;
		3132	},
1745	);	3133	);
1746		3134
1747	=item $client->coro (\&cb)	3135	=item $client->async (\&cb)
1748		3136
1749	Create a new coroutine, running the specified callback. The coroutine will	3137	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	3138	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	3139	or loss of connection).
1752		3140
1753	=cut	3141	=cut
1754		3142
1755	sub cf::client::coro {	3143	sub cf::client::async {
1756	my ($self, $cb) = @_;	3144	my ($self, $cb) = @_;
1757		3145
1758	my $coro = &cf::async ($cb);	3146	my $coro = &Coro::async ($cb);
1759		3147
1760	$coro->on_destroy (sub {	3148	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	3149	delete $self->{_coro}{$coro+0};
1762	});	3150	});
1763		3151
…		…
1765		3153
1766	$coro	3154	$coro
1767	}	3155	}
1768		3156
1769	cf::client->attach (	3157	cf::client->attach (
1770	on_destroy => sub {	3158	on_client_destroy => sub {
1771	my ($ns) = @_;	3159	my ($ns) = @_;
1772		3160
1773	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3161	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1774	},	3162	},
1775	);	3163	);
…		…
1790	our $safe = new Safe "safe";	3178	our $safe = new Safe "safe";
1791	our $safe_hole = new Safe::Hole;	3179	our $safe_hole = new Safe::Hole;
1792		3180
1793	$SIG{FPE} = 'IGNORE';	3181	$SIG{FPE} = 'IGNORE';
1794		3182
1795	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3183	$safe->permit_only (Opcode::opset qw(
		3184	:base_core :base_mem :base_orig :base_math :base_loop
		3185	grepstart grepwhile mapstart mapwhile
		3186	sort time
		3187	));
1796		3188
1797	# here we export the classes and methods available to script code	3189	# here we export the classes and methods available to script code
1798		3190
1799	=pod	3191	=pod
1800		3192
1801	The following fucntions and emthods are available within a safe environment:	3193	The following functions and methods are available within a safe environment:
1802		3194
1803	cf::object contr pay_amount pay_player map	3195	cf::object
		3196	contr pay_amount pay_player map x y force_find force_add destroy
		3197	insert remove name archname title slaying race decrease split
		3198	value
		3199
1804	cf::object::player player	3200	cf::object::player
1805	cf::player peaceful	3201	player
1806	cf::map trigger	3202
		3203	cf::player
		3204	peaceful
		3205
		3206	cf::map
		3207	trigger
1807		3208
1808	=cut	3209	=cut
1809		3210
1810	for (	3211	for (
1811	["cf::object" => qw(contr pay_amount pay_player map)],	3212	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3213	insert remove inv nrof name archname title slaying race
		3214	decrease split destroy change_exp value msg lore send_msg)],
1812	["cf::object::player" => qw(player)],	3215	["cf::object::player" => qw(player)],
1813	["cf::player" => qw(peaceful)],	3216	["cf::player" => qw(peaceful send_msg)],
1814	["cf::map" => qw(trigger)],	3217	["cf::map" => qw(trigger)],
1815	) {	3218	) {
1816	no strict 'refs';	3219	no strict 'refs';
1817	my ($pkg, @funs) = @$_;	3220	my ($pkg, @funs) = @$_;
1818	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3221	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1836		3239
1837	my $qcode = $code;	3240	my $qcode = $code;
1838	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3241	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1839	$qcode =~ s/\n/\\n/g;	3242	$qcode =~ s/\n/\\n/g;
1840		3243
		3244	%vars = (_dummy => 0) unless %vars;
		3245
		3246	my @res;
1841	local $_;	3247	local $_;
1842	local @safe::cf::_safe_eval_args = values %vars;
1843		3248
1844	my $eval =	3249	my $eval =
1845	"do {\n"	3250	"do {\n"
1846	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3251	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1847	. "#line 0 \"{$qcode}\"\n"	3252	. "#line 0 \"{$qcode}\"\n"
1848	. $code	3253	. $code
1849	. "\n}"	3254	. "\n}"
1850	;	3255	;
1851		3256
		3257	if ($CFG{safe_eval}) {
1852	sub_generation_inc;	3258	sub_generation_inc;
		3259	local @safe::cf::_safe_eval_args = values %vars;
1853	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3260	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1854	sub_generation_inc;	3261	sub_generation_inc;
		3262	} else {
		3263	local @cf::_safe_eval_args = values %vars;
		3264	@res = wantarray ? eval eval : scalar eval $eval;
		3265	}
1855		3266
1856	if ($@) {	3267	if ($@) {
1857	warn "$@";	3268	warn "$@";
1858	warn "while executing safe code '$code'\n";	3269	warn "while executing safe code '$code'\n";
1859	warn "with arguments " . (join " ", %vars) . "\n";	3270	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1878	=cut	3289	=cut
1879		3290
1880	sub register_script_function {	3291	sub register_script_function {
1881	my ($fun, $cb) = @_;	3292	my ($fun, $cb) = @_;
1882		3293
1883	no strict 'refs';	3294	$fun = "safe::$fun" if $CFG{safe_eval};
1884	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3295	*$fun = $safe_hole->wrap ($cb);
1885	}	3296	}
1886		3297
1887	=back	3298	=back
1888		3299
1889	=cut	3300	=cut
1890		3301
1891	#############################################################################	3302	#############################################################################
		3303	# the server's init and main functions
1892		3304
1893	=head2 EXTENSION DATABASE SUPPORT	3305	sub load_facedata($) {
		3306	my ($path) = @_;
1894		3307
1895	Crossfire maintains a very simple database for extension use. It can	3308	# HACK to clear player env face cache, we need some signal framework
1896	currently store anything that can be serialised using Storable, which	3309	# for this (global event?)
1897	excludes objects.	3310	%ext::player_env::MUSIC_FACE_CACHE = ();
1898		3311
1899	The parameter C<$family> should best start with the name of the extension	3312	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1900	using it, it should be unique.
1901		3313
1902	=over 4	3314	warn "loading facedata from $path\n";
1903		3315
1904	=item $hashref = cf::db_get $family	3316	my $facedata;
		3317	0 < aio_load $path, $facedata
		3318	or die "$path: $!";
1905		3319
1906	Return a hashref for use by the extension C<$family>, which can be	3320	$facedata = Coro::Storable::thaw $facedata;
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909		3321
1910	=item $value = cf::db_get $family => $key	3322	$facedata->{version} == 2
		3323	or cf::cleanup "$path: version mismatch, cannot proceed.";
1911		3324
1912	Returns a single value from the database	3325	# patch in the exptable
1913		3326	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1914	=item cf::db_put $family => $hashref	3327	$facedata->{resource}{"res/exp_table"} = {
1915		3328	type => FT_RSRC,
1916	Stores the given family hashref into the database. Updates are delayed, if	3329	data => $exp_table,
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3330	hash => (Digest::MD5::md5 $exp_table),
1918
1919	=item cf::db_put $family => $key => $value
1920
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931
1932	=cut
1933
1934	our $DB;
1935
1936	{
1937	my $path = cf::localdir . "/database.pst";
1938
1939	sub db_load() {
1940	$DB = stat $path ? Storable::retrieve $path : { };
1941	}
1942
1943	my $pid;
1944
1945	sub db_save() {
1946	waitpid $pid, 0 if $pid;
1947	if (0 == ($pid = fork)) {
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});	3331	};
		3332	cf::cede_to_tick;
1965		3333
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}	3334	{
		3335	my $faces = $facedata->{faceinfo};
1970		3336
1971	sub db_get($;$) {	3337	while (my ($face, $info) = each %$faces) {
1972	@_ >= 2	3338	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976		3339
1977	sub db_put($$;$) {	3340	cf::face::set_visibility $idx, $info->{visibility};
1978	if (@_ >= 3) {	3341	cf::face::set_magicmap $idx, $info->{magicmap};
1979	$DB->{$_[0]}{$_[1]} = $_[2];	3342	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1980	} else {	3343	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985		3344
1986	cf::global->attach (	3345	cf::cede_to_tick;
1987	prio => 10000,
1988	on_cleanup => sub {
1989	db_sync;
1990	},	3346	}
1991	);
1992	}
1993		3347
1994	#############################################################################	3348	while (my ($face, $info) = each %$faces) {
1995	# the server's main()	3349	next unless $info->{smooth};
1996		3350
1997	sub cfg_load {	3351	my $idx = cf::face::find $face
		3352	or next;
		3353
		3354	if (my $smooth = cf::face::find $info->{smooth}) {
		3355	cf::face::set_smooth $idx, $smooth;
		3356	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3357	} else {
		3358	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3359	}
		3360
		3361	cf::cede_to_tick;
		3362	}
		3363	}
		3364
		3365	{
		3366	my $anims = $facedata->{animinfo};
		3367
		3368	while (my ($anim, $info) = each %$anims) {
		3369	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3370	cf::cede_to_tick;
		3371	}
		3372
		3373	cf::anim::invalidate_all; # d'oh
		3374	}
		3375
		3376	{
		3377	my $res = $facedata->{resource};
		3378
		3379	while (my ($name, $info) = each %$res) {
		3380	if (defined $info->{type}) {
		3381	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3382
		3383	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3384	cf::face::set_type $idx, $info->{type};
		3385	} else {
		3386	$RESOURCE{$name} = $info;
		3387	}
		3388
		3389	cf::cede_to_tick;
		3390	}
		3391	}
		3392
		3393	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3394
		3395	1
		3396	}
		3397
		3398	cf::global->attach (on_resource_update => sub {
		3399	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3400	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3401
		3402	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3403	my $sound = $soundconf->{compat}[$_]
		3404	or next;
		3405
		3406	my $face = cf::face::find "sound/$sound->[1]";
		3407	cf::sound::set $sound->[0] => $face;
		3408	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3409	}
		3410
		3411	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3412	my $face = cf::face::find "sound/$v";
		3413	cf::sound::set $k => $face;
		3414	}
		3415	}
		3416	});
		3417
		3418	register_exticmd fx_want => sub {
		3419	my ($ns, $want) = @_;
		3420
		3421	while (my ($k, $v) = each %$want) {
		3422	$ns->fx_want ($k, $v);
		3423	}
		3424	};
		3425
		3426	sub load_resource_file($) {
		3427	my $guard = lock_acquire "load_resource_file";
		3428
		3429	my $status = load_resource_file_ $_[0];
		3430	get_slot 0.1, 100;
		3431	cf::arch::commit_load;
		3432
		3433	$status
		3434	}
		3435
		3436	sub reload_regions {
		3437	# HACK to clear player env face cache, we need some signal framework
		3438	# for this (global event?)
		3439	%ext::player_env::MUSIC_FACE_CACHE = ();
		3440
		3441	load_resource_file "$MAPDIR/regions"
		3442	or die "unable to load regions file\n";
		3443
		3444	for (cf::region::list) {
		3445	$_->{match} = qr/$_->{match}/
		3446	if exists $_->{match};
		3447	}
		3448	}
		3449
		3450	sub reload_facedata {
		3451	load_facedata "$DATADIR/facedata"
		3452	or die "unable to load facedata\n";
		3453	}
		3454
		3455	sub reload_archetypes {
		3456	load_resource_file "$DATADIR/archetypes"
		3457	or die "unable to load archetypes\n";
		3458	}
		3459
		3460	sub reload_treasures {
		3461	load_resource_file "$DATADIR/treasures"
		3462	or die "unable to load treasurelists\n";
		3463	}
		3464
		3465	sub reload_resources {
		3466	warn "reloading resource files...\n";
		3467
		3468	reload_facedata;
		3469	reload_archetypes;
		3470	reload_regions;
		3471	reload_treasures;
		3472
		3473	warn "finished reloading resource files\n";
		3474	}
		3475
		3476	sub reload_config {
		3477	warn "reloading config file...\n";
		3478
1998	open my $fh, "<:utf8", cf::confdir . "/config"	3479	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	3480	or return;
2000		3481
2001	local $/;	3482	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	3483	*CFG = YAML::XS::Load scalar <$fh>;
2003		3484
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3485	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3486
		3487	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3488	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2005		3489
2006	if (exists $CFG{mlockall}) {	3490	if (exists $CFG{mlockall}) {
2007	eval {	3491	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	3492	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	3493	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	3494	};
2011	warn $@ if $@;	3495	warn $@ if $@;
2012	}	3496	}
		3497
		3498	warn "finished reloading resource files\n";
		3499	}
		3500
		3501	sub pidfile() {
		3502	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3503	or die "$PIDFILE: $!";
		3504	flock $fh, &Fcntl::LOCK_EX
		3505	or die "$PIDFILE: flock: $!";
		3506	$fh
		3507	}
		3508
		3509	# make sure only one server instance is running at any one time
		3510	sub atomic {
		3511	my $fh = pidfile;
		3512
		3513	my $pid = <$fh>;
		3514	kill 9, $pid if $pid > 0;
		3515
		3516	seek $fh, 0, 0;
		3517	print $fh $$;
		3518	}
		3519
		3520	sub main_loop {
		3521	warn "EV::loop starting\n";
		3522	if (1) {
		3523	EV::loop;
		3524	}
		3525	warn "EV::loop returned\n";
		3526	goto &main_loop unless $REALLY_UNLOOP;
2013	}	3527	}
2014		3528
2015	sub main {	3529	sub main {
		3530	cf::init_globals; # initialise logging
		3531
		3532	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3533	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3534	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3535	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3536
		3537	cf::init_experience;
		3538	cf::init_anim;
		3539	cf::init_attackmess;
		3540	cf::init_dynamic;
		3541
		3542	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3543
2016	# we must not ever block the main coroutine	3544	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	3545	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3546	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	3547	(async {
2020	Event::one_event;	3548	$Coro::current->{desc} = "IDLE BUG HANDLER";
2021	})->();	3549	EV::loop EV::LOOP_ONESHOT;
		3550	})->prio (Coro::PRIO_MAX);
2022	};	3551	};
2023		3552
2024	cfg_load;	3553	evthread_start IO::AIO::poll_fileno;
2025	db_load;	3554
		3555	cf::sync_job {
		3556	cf::load_settings;
		3557	cf::load_materials;
		3558
		3559	reload_resources;
		3560	reload_config;
		3561	db_init;
		3562
		3563	cf::init_uuid;
		3564	cf::init_signals;
		3565	cf::init_skills;
		3566
		3567	cf::init_beforeplay;
		3568
		3569	atomic;
		3570
2026	load_extensions;	3571	load_extensions;
2027	Event::loop;	3572
		3573	utime time, time, $RUNTIMEFILE;
		3574
		3575	# no (long-running) fork's whatsoever before this point(!)
		3576	use POSIX ();
		3577	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3578
		3579	(pop @POST_INIT)->(0) while @POST_INIT;
		3580	};
		3581
		3582	main_loop;
2028	}	3583	}
2029		3584
2030	#############################################################################	3585	#############################################################################
2031	# initialisation	3586	# initialisation and cleanup
2032		3587
		3588	# install some emergency cleanup handlers
		3589	BEGIN {
		3590	our %SIGWATCHER = ();
		3591	for my $signal (qw(INT HUP TERM)) {
		3592	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3593	cf::cleanup "SIG$signal";
		3594	};
		3595	}
		3596	}
		3597
		3598	sub write_runtime_sync {
		3599	my $t0 = AE::time;
		3600
		3601	# first touch the runtime file to show we are still running:
		3602	# the fsync below can take a very very long time.
		3603
		3604	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3605
		3606	my $guard = cf::lock_acquire "write_runtime";
		3607
		3608	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3609	or return;
		3610
		3611	my $value = $cf::RUNTIME + 90 + 10;
		3612	# 10 is the runtime save interval, for a monotonic clock
		3613	# 60 allows for the watchdog to kill the server.
		3614
		3615	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3616	and return;
		3617
		3618	# always fsync - this file is important
		3619	aio_fsync $fh
		3620	and return;
		3621
		3622	# touch it again to show we are up-to-date
		3623	aio_utime $fh, undef, undef;
		3624
		3625	close $fh
		3626	or return;
		3627
		3628	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3629	and return;
		3630
		3631	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3632
		3633	1
		3634	}
		3635
		3636	our $uuid_lock;
		3637	our $uuid_skip;
		3638
		3639	sub write_uuid_sync($) {
		3640	$uuid_skip ||= $_[0];
		3641
		3642	return if $uuid_lock;
		3643	local $uuid_lock = 1;
		3644
		3645	my $uuid = "$LOCALDIR/uuid";
		3646
		3647	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3648	or return;
		3649
		3650	my $value = uuid_seq uuid_cur;
		3651
		3652	unless ($value) {
		3653	warn "cowardly refusing to write zero uuid value!\n";
		3654	return;
		3655	}
		3656
		3657	my $value = uuid_str $value + $uuid_skip;
		3658	$uuid_skip = 0;
		3659
		3660	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3661	and return;
		3662
		3663	# always fsync - this file is important
		3664	aio_fsync $fh
		3665	and return;
		3666
		3667	close $fh
		3668	or return;
		3669
		3670	aio_rename "$uuid~", $uuid
		3671	and return;
		3672
		3673	warn "uuid file written ($value).\n";
		3674
		3675	1
		3676
		3677	}
		3678
		3679	sub write_uuid($$) {
		3680	my ($skip, $sync) = @_;
		3681
		3682	$sync ? write_uuid_sync $skip
		3683	: async { write_uuid_sync $skip };
		3684	}
		3685
		3686	sub emergency_save() {
		3687	my $freeze_guard = cf::freeze_mainloop;
		3688
		3689	warn "emergency_perl_save: enter\n";
		3690
		3691	cf::sync_job {
		3692	# this is a trade-off: we want to be very quick here, so
		3693	# save all maps without fsync, and later call a global sync
		3694	# (which in turn might be very very slow)
		3695	local $USE_FSYNC = 0;
		3696
		3697	# use a peculiar iteration method to avoid tripping on perl
		3698	# refcount bugs in for. also avoids problems with players
		3699	# and maps saved/destroyed asynchronously.
		3700	warn "emergency_perl_save: begin player save\n";
		3701	for my $login (keys %cf::PLAYER) {
		3702	my $pl = $cf::PLAYER{$login} or next;
		3703	$pl->valid or next;
		3704	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3705	$pl->save;
		3706	}
		3707	warn "emergency_perl_save: end player save\n";
		3708
		3709	warn "emergency_perl_save: begin map save\n";
		3710	for my $path (keys %cf::MAP) {
		3711	my $map = $cf::MAP{$path} or next;
		3712	$map->valid or next;
		3713	$map->save;
		3714	}
		3715	warn "emergency_perl_save: end map save\n";
		3716
		3717	warn "emergency_perl_save: begin database checkpoint\n";
		3718	BDB::db_env_txn_checkpoint $DB_ENV;
		3719	warn "emergency_perl_save: end database checkpoint\n";
		3720
		3721	warn "emergency_perl_save: begin write uuid\n";
		3722	write_uuid_sync 1;
		3723	warn "emergency_perl_save: end write uuid\n";
		3724	};
		3725
		3726	warn "emergency_perl_save: starting sync()\n";
		3727	IO::AIO::aio_sync sub {
		3728	warn "emergency_perl_save: finished sync()\n";
		3729	};
		3730
		3731	warn "emergency_perl_save: leave\n";
		3732	}
		3733
		3734	sub post_cleanup {
		3735	my ($make_core) = @_;
		3736
		3737	warn Carp::longmess "post_cleanup backtrace"
		3738	if $make_core;
		3739
		3740	my $fh = pidfile;
		3741	unlink $PIDFILE if <$fh> == $$;
		3742	}
		3743
		3744	# a safer delete_package, copied from Symbol
		3745	sub clear_package($) {
		3746	my $pkg = shift;
		3747
		3748	# expand to full symbol table name if needed
		3749	unless ($pkg =~ /^main::.*::$/) {
		3750	$pkg = "main$pkg" if $pkg =~ /^::/;
		3751	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3752	$pkg .= '::' unless $pkg =~ /::$/;
		3753	}
		3754
		3755	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3756	my $stem_symtab = *{$stem}{HASH};
		3757
		3758	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3759	or return;
		3760
		3761	# clear all symbols
		3762	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3763	for my $name (keys %$leaf_symtab) {
		3764	_gv_clear *{"$pkg$name"};
		3765	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3766	}
		3767	warn "cleared package $pkg\n";#d#
		3768	}
		3769
2033	sub reload() {	3770	sub do_reload_perl() {
2034	# can/must only be called in main	3771	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	3772	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	3773	warn "can only reload from main coroutine";
2037	return;	3774	return;
2038	}	3775	}
2039		3776
		3777	return if $RELOAD++;
		3778
		3779	my $t1 = AE::time;
		3780
		3781	while ($RELOAD) {
2040	warn "reloading...";	3782	warn "reloading...";
2041		3783
2042	my $guard = freeze_mainloop;	3784	warn "entering sync_job";
		3785
		3786	cf::sync_job {
		3787	cf::write_runtime_sync; # external watchdog should not bark
2043	cf::emergency_save;	3788	cf::emergency_save;
		3789	cf::write_runtime_sync; # external watchdog should not bark
2044		3790
2045	eval {	3791	warn "syncing database to disk";
		3792	BDB::db_env_txn_checkpoint $DB_ENV;
		3793
2046	# if anything goes wrong in here, we should simply crash as we already saved	3794	# if anything goes wrong in here, we should simply crash as we already saved
2047		3795
2048	# cancel all watchers	3796	warn "flushing outstanding aio requests";
2049	for (Event::all_watchers) {	3797	while (IO::AIO::nreqs || BDB::nreqs) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	3798	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2051	}
2052
2053	# cancel all extension coros
2054	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();
2056
2057	# unload all extensions
2058	for (@exts) {
2059	warn "unloading <$_>";
2060	unload_extension $_;
2061	}
2062
2063	# unload all modules loaded from $LIBDIR
2064	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066
2067	warn "removing <$k>";
2068	delete $INC{$k};
2069
2070	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;
2072
2073	if (my $cb = $k->can ("unload_module")) {
2074	$cb->();
2075	}	3799	}
2076		3800
2077	Symbol::delete_package $k;	3801	warn "cancelling all extension coros";
		3802	$_->cancel for values %EXT_CORO;
		3803	%EXT_CORO = ();
		3804
		3805	warn "removing commands";
		3806	%COMMAND = ();
		3807
		3808	warn "removing ext/exti commands";
		3809	%EXTCMD = ();
		3810	%EXTICMD = ();
		3811
		3812	warn "unloading/nuking all extensions";
		3813	for my $pkg (@EXTS) {
		3814	warn "... unloading $pkg";
		3815
		3816	if (my $cb = $pkg->can ("unload")) {
		3817	eval {
		3818	$cb->($pkg);
		3819	1
		3820	} or warn "$pkg unloaded, but with errors: $@";
		3821	}
		3822
		3823	warn "... clearing $pkg";
		3824	clear_package $pkg;
2078	}	3825	}
2079		3826
2080	# sync database to disk	3827	warn "unloading all perl modules loaded from $LIBDIR";
2081	cf::db_sync;	3828	while (my ($k, $v) = each %INC) {
2082	IO::AIO::flush;	3829	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2083		3830
		3831	warn "... unloading $k";
		3832	delete $INC{$k};
		3833
		3834	$k =~ s/\.pm$//;
		3835	$k =~ s/\//::/g;
		3836
		3837	if (my $cb = $k->can ("unload_module")) {
		3838	$cb->();
		3839	}
		3840
		3841	clear_package $k;
		3842	}
		3843
2084	# get rid of safe::, as good as possible	3844	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	3845	clear_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3846	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		3847
2088	# remove register_script_function callbacks	3848	warn "unloading cf.pm \"a bit\"";
2089	# TODO
2090
2091	# unload cf.pm "a bit"
2092	delete $INC{"cf.pm"};	3849	delete $INC{"cf.pm"};
		3850	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2093		3851
2094	# don't, removes xs symbols, too,	3852	# don't, removes xs symbols, too,
2095	# and global variables created in xs	3853	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	3854	#clear_package __PACKAGE__;
2097		3855
2098	# reload cf.pm	3856	warn "unload completed, starting to reload now";
		3857
2099	warn "reloading cf.pm";	3858	warn "reloading cf.pm";
2100	require cf;	3859	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3860	cf::_connect_to_perl_1;
2102		3861
2103	# load config and database again	3862	warn "loading config and database again";
2104	cf::cfg_load;	3863	cf::reload_config;
2105	cf::db_load;
2106		3864
2107	# load extensions
2108	warn "load extensions";	3865	warn "loading extensions";
2109	cf::load_extensions;	3866	cf::load_extensions;
2110		3867
2111	# reattach attachments to objects	3868	if ($REATTACH_ON_RELOAD) {
		3869	warn "reattaching attachments to objects/players";
		3870	_global_reattach; # objects, sockets
		3871	warn "reattaching attachments to maps";
		3872	reattach $_ for values %MAP;
		3873	warn "reattaching attachments to players";
		3874	reattach $_ for values %PLAYER;
		3875	}
		3876
		3877	warn "running post_init jobs";
		3878	(pop @POST_INIT)->(1) while @POST_INIT;
		3879
		3880	warn "leaving sync_job";
		3881
		3882	1
		3883	} or do {
		3884	warn $@;
		3885	cf::cleanup "error while reloading, exiting.";
		3886	};
		3887
2112	warn "reattach";	3888	warn "reloaded";
2113	_global_reattach;	3889	--$RELOAD;
		3890	}
		3891
		3892	$t1 = AE::time - $t1;
		3893	warn "reload completed in ${t1}s\n";
		3894	};
		3895
		3896	our $RELOAD_WATCHER; # used only during reload
		3897
		3898	sub reload_perl() {
		3899	# doing reload synchronously and two reloads happen back-to-back,
		3900	# coro crashes during coro_state_free->destroy here.
		3901
		3902	$RELOAD_WATCHER ||= cf::async {
		3903	Coro::AIO::aio_wait cache_extensions;
		3904
		3905	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3906	do_reload_perl;
		3907	undef $RELOAD_WATCHER;
		3908	};
2114	};	3909	};
2115
2116	if ($@) {
2117	warn $@;
2118	warn "error while reloading, exiting.";
2119	exit 1;
2120	}
2121
2122	warn "reloaded successfully";
2123	};
2124
2125	#############################################################################
2126
2127	unless ($LINK_MAP) {
2128	$LINK_MAP = cf::map::new;
2129
2130	$LINK_MAP->width (41);
2131	$LINK_MAP->height (41);
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,
2140	cb => sub {
2141	$_[0]->w->cancel;
2142
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});
2161
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	3910	}
2167
2168	register "<global>", __PACKAGE__;
2169		3911
2170	register_command "reload" => sub {	3912	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	3913	my ($who, $arg) = @_;
2172		3914
2173	if ($who->flag (FLAG_WIZ)) {	3915	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	3916	$who->message ("reloading server.");
		3917	async {
		3918	$Coro::current->{desc} = "perl_reload";
		3919	reload_perl;
		3920	};
2177	}	3921	}
2178	};	3922	};
2179		3923
2180	unshift @INC, $LIBDIR;	3924	unshift @INC, $LIBDIR;
2181		3925
2182	$TICK_WATCHER = Event->timer (	3926	my $bug_warning = 0;
2183	reentrant => 0,	3927
2184	prio => 0,	3928	our @WAIT_FOR_TICK;
2185	at => $NEXT_TICK || $TICK,	3929	our @WAIT_FOR_TICK_BEGIN;
2186	data => WF_AUTOCANCEL,	3930
2187	cb => sub {	3931	sub wait_for_tick {
		3932	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3933
		3934	my $signal = new Coro::Signal;
		3935	push @WAIT_FOR_TICK, $signal;
		3936	$signal->wait;
		3937	}
		3938
		3939	sub wait_for_tick_begin {
		3940	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3941
		3942	my $signal = new Coro::Signal;
		3943	push @WAIT_FOR_TICK_BEGIN, $signal;
		3944	$signal->wait;
		3945	}
		3946
		3947	sub tick {
		3948	if ($Coro::current != $Coro::main) {
		3949	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3950	unless ++$bug_warning > 10;
		3951	return;
		3952	}
		3953
2188	cf::server_tick; # one server iteration	3954	cf::server_tick; # one server iteration
2189	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;
2191		3955
2192	# if we are delayed by four ticks or more, skip them all	3956	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2194		3957
2195	$TICK_WATCHER->at ($NEXT_TICK);	3958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2196	$TICK_WATCHER->start;	3959	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2197	},	3960	Coro::async_pool {
2198	);	3961	$Coro::current->{desc} = "runtime saver";
2199
2200	IO::AIO::max_poll_time $TICK * 0.2;
2201
2202	Event->io (
2203	fd => IO::AIO::poll_fileno,
2204	poll => 'r',
2205	prio => 5,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,
2212	after => 0,
2213	interval => 10,
2214	cb => sub {
2215	(Coro::unblock_sub {
2216	write_runtime	3962	write_runtime_sync
2217	or warn "ERROR: unable to write runtime file: $!";	3963	or warn "ERROR: unable to write runtime file: $!";
2218	})->();	3964	};
2219	},	3965	}
2220	);	3966
		3967	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3968	$sig->send;
		3969	}
		3970	while (my $sig = shift @WAIT_FOR_TICK) {
		3971	$sig->send;
		3972	}
		3973
		3974	$LOAD = ($NOW - $TICK_START) / $TICK;
		3975	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3976
		3977	if (0) {
		3978	if ($NEXT_TICK) {
		3979	my $jitter = $TICK_START - $NEXT_TICK;
		3980	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3981	warn "jitter $JITTER\n";#d#
		3982	}
		3983	}
		3984	}
		3985
		3986	{
		3987	# configure BDB
		3988
		3989	BDB::min_parallel 16;
		3990	BDB::max_poll_reqs $TICK * 0.1;
		3991	$AnyEvent::BDB::WATCHER->priority (1);
		3992
		3993	unless ($DB_ENV) {
		3994	$DB_ENV = BDB::db_env_create;
		3995	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3996	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3997	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3998	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3999	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4000
		4001	cf::sync_job {
		4002	eval {
		4003	BDB::db_env_open
		4004	$DB_ENV,
		4005	$BDBDIR,
		4006	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4007	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4008	0666;
		4009
		4010	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4011	};
		4012
		4013	cf::cleanup "db_env_open(db): $@" if $@;
		4014	};
		4015	}
		4016
		4017	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4018	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4019	};
		4020	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4021	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4022	};
		4023	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4024	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4025	};
		4026	}
		4027
		4028	{
		4029	# configure IO::AIO
		4030
		4031	IO::AIO::min_parallel 8;
		4032	IO::AIO::max_poll_time $TICK * 0.1;
		4033	undef $AnyEvent::AIO::WATCHER;
		4034	}
		4035
		4036	my $_log_backtrace;
		4037
		4038	sub _log_backtrace {
		4039	my ($msg, @addr) = @_;
		4040
		4041	$msg =~ s/\n//;
		4042
		4043	# limit the # of concurrent backtraces
		4044	if ($_log_backtrace < 2) {
		4045	++$_log_backtrace;
		4046	my $perl_bt = Carp::longmess $msg;
		4047	async {
		4048	$Coro::current->{desc} = "abt $msg";
		4049
		4050	my @bt = fork_call {
		4051	@addr = map { sprintf "%x", $_ } @addr;
		4052	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4053	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4054	or die "addr2line: $!";
		4055
		4056	my @funcs;
		4057	my @res = <$fh>;
		4058	chomp for @res;
		4059	while (@res) {
		4060	my ($func, $line) = splice @res, 0, 2, ();
		4061	push @funcs, "[$func] $line";
		4062	}
		4063
		4064	@funcs
		4065	};
		4066
		4067	LOG llevInfo, "[ABT] $perl_bt\n";
		4068	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4069	LOG llevInfo, "[ABT] $_\n" for @bt;
		4070	--$_log_backtrace;
		4071	};
		4072	} else {
		4073	LOG llevInfo, "[ABT] $msg\n";
		4074	LOG llevInfo, "[ABT] [suppressed]\n";
		4075	}
		4076	}
		4077
		4078	# load additional modules
		4079	require "cf/$_.pm" for @EXTRA_MODULES;
		4080	cf::_connect_to_perl_2;
2221		4081
2222	END { cf::emergency_save }	4082	END { cf::emergency_save }
2223		4083
2224	1	4084	1
2225		4085

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