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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.121 by root, Tue Jan 2 11:11:52 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 $FREEZE;	136	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	137
56	our %EXT_CORO;	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 $REALLY_UNLOOP; # never set to true, please :)
57		150
58	binmode STDOUT;	151	binmode STDOUT;
59	binmode STDERR;	152	binmode STDERR;
60		153
61	# read virtual server time, if available	154	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
66	}	159	}
67		160
68	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		162
74	# a special map that is always available	163	mkdir $_
75	our $LINK_MAP;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		165
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	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::"} };
78		180
79	#############################################################################	181	#############################################################################
80		182
81	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
82		184
…		…
89	=item $cf::RUNTIME	191	=item $cf::RUNTIME
90		192
91	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
92	every server tick.	194	every server tick.
93		195
94	=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
95		199
96	The perl library directory, where extensions and cf-specific modules can	200	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		204
99	=item $cf::NOW	205	=item $cf::NOW
100		206
101	The time of the last (current) server tick.	207	The time of the last (current) server tick.
102		208
103	=item $cf::TICK	209	=item $cf::TICK
104		210
105	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
106		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
107	=item %cf::CFG	223	=item %cf::CFG
108		224
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	226	from wherever your confdir points to.
111		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
112	=back	246	=back
113		247
114	=cut	248	=cut
115		249
116	BEGIN {	250	$Coro::State::WARNHOOK = sub {
117	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	251	my $msg = join "", @_;
119	utf8::encode $msg;
120		252
121	$msg .= "\n"	253	$msg .= "\n"
122	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
123		255
		256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
124	LOG llevError, "cfperl: $msg";	258	LOG llevError, $msg;
125	};	259	};
126	}	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	};
127		274
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		282
135	# 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
136	# within the Safe compartment.	284	# within the Safe compartment.
137	for my $pkg (qw(	285	for my $pkg (qw(
138	cf::global cf::attachable	286	cf::global cf::attachable
139	cf::object cf::object::player	287	cf::object cf::object::player
140	cf::client cf::player	288	cf::client cf::player
141	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
142	cf::map cf::party cf::region	291	cf::party cf::region
143	)) {	292	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	294	}
147		295
148	$Event::DIED = sub {	296	$EV::DIED = sub {
149	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
150	};	298	};
151		299
152	my %ext_pkg;	300	#############################################################################
153	my @exts;
154	my @hook;
155		301
156	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
157		303
158	=over 4	304	=over 4
159		305
160	=cut	306	=item dumpval $ref
161		307
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	308	=cut
163		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
164	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
165		330
166	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
167		332
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
176		334
177	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
178		336
179	=cut	337	=cut
180		338
181	sub to_json($) {	339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		340
186	=item my $guard = cf::guard { BLOCK }	341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
187		343
188	Run the given callback when the guard object gets destroyed (useful for	344	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		345
191	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,
192	being executed.	347	but I<before> the server starts ticking again.
193		348
194	=cut	349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
195		351
196	sub guard(&) {	352	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		353
200	sub cf::guard::cancel {	354	sub post_init(&) {
201	${$_[0]} = sub { };	355	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	356	}
207		357
208	=item cf::lock_wait $string	358	=item cf::lock_wait $string
209		359
210	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
211		361
212	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
213		363
214	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
215	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,
216	for example when the coroutine gets canceled), the lock is automatically	366	for example when the coroutine gets canceled), the lock is automatically
217	returned.	367	returned.
218		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
219	Lock names should begin with a unique identifier (for example, find_map	372	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	373	uses map_find and cf::map::load uses map_load).
221		374
222	=cut	375	=item $locked = cf::lock_active $string
223		376
224	our %LOCK;	377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
225		382
226	sub lock_wait($) {	383	sub lock_wait($) {
227	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	385	}
235		386
236	sub lock_acquire($) {	387	sub lock_acquire($) {
237	my ($key) = @_;	388	$LOCKS->guard ($_[0])
238
239	# wait, to be sure we are not locked
240	lock_wait $key;
241
242	$LOCK{$key} = [];
243
244	cf::guard {
245	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };
247	}
248	}	389	}
		390
		391	sub lock_active($) {
		392	$LOCKS->count ($_[0]) < 1
		393	}
		394
		395	sub freeze_mainloop {
		396	tick_inhibit_inc;
		397
		398	&Guard::guard (\&tick_inhibit_dec);
		399	}
		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($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
		465	}
		466	};
		467
		468	sub get_slot($;$$) {
		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	$sig->wait;
		481	}
		482
		483	=item cf::async { BLOCK }
		484
		485	Currently the same as Coro::async_pool, meaning you cannot use
		486	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		487	thing you are allowed to do is call C<prio> on it.
		488
		489	=cut
		490
		491	BEGIN { *async = \&Coro::async_pool }
249		492
250	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
251		494
252	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
255		499
256	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
259	fast or be very important.	503	fast or be very important.
…		…
262		506
263	sub sync_job(&) {	507	sub sync_job(&) {
264	my ($job) = @_;	508	my ($job) = @_;
265		509
266	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
267	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
269		515
270	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	517
272	local $FREEZE = 1;	518	my $freeze_guard = freeze_mainloop;
273		519
274	my $busy = 1;	520	my $busy = 1;
275	my @res;	521	my @res;
276		522
277	(Coro::async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	525	@res = eval { $job->() };
279	warn $@ if $@;	526	warn $@ if $@;
280	undef $busy;	527	undef $busy;
281	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
282		529
283	while ($busy) {	530	while ($busy) {
		531	if (Coro::nready) {
284	Coro::cede_notself;	532	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
286	}	535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
287		541
288	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
289	} else {	543	} else {
290	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
291		545
292	$job->()	546	$job->()
293	}	547	}
294	}	548	}
295		549
296	=item $coro = cf::coro { BLOCK }	550	=item $coro = cf::async_ext { BLOCK }
297		551
298	Creates and returns a new coro. This coro is automcatially being canceled	552	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	553	extension calling this is being unloaded.
300		554
301	=cut	555	=cut
302		556
303	sub coro(&) {	557	sub async_ext(&) {
304	my $cb = shift;	558	my $cb = shift;
305		559
306	my $coro; $coro = async {	560	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		561
313	$coro->on_destroy (sub {	562	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	563	delete $EXT_CORO{$coro+0};
315	});	564	});
316	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
317		566
318	$coro	567	$coro
319	}	568	}
320		569
321	sub write_runtime {	570	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		571
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	572	Executes the given code block with the given arguments in a seperate
325	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.
326		576
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	577	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		578
331	aio_fsync $fh	579	sub fork_call(&@) {
332	and return;	580	my ($cb, @args) = @_;
333		581
334	close $fh	582	# we seemingly have to make a local copy of the whole thing,
335	or return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
336		585
337	aio_rename "$runtime~", $runtime	586	my @res = Coro::Util::fork_eval {
338	and return;	587	reset_signals;
		588	&$cb
		589	}, @args;
339		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($$) {
		663	my $key = "$_[0]/$_[1]";
		664
		665	cf::sync_job {
		666	BDB::db_get $DB, undef, $key, my $data;
		667
		668	$! ? ()
		669	: $data
340	1	670	}
		671	}
		672
		673	sub db_put($$$) {
		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 => $type });
341	}	757	}
342		758
343	=back	759	=back
344		760
345	=cut	761	=cut
346		762
347	#############################################################################	763	#############################################################################
348		764
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466
467	#############################################################################
468
469	=head2 ATTACHABLE OBJECTS	765	=head2 ATTACHABLE OBJECTS
470		766
471	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
472	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")
473	to it. All such attachable objects support the following methods.	769	to it. All such attachable objects support the following methods.
474		770
475	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>
476	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
477	crossfire+).	773	Deliantra).
478		774
479	=over 4	775	=over 4
480		776
481	=item $attachable->attach ($attachment, key => $value...)	777	=item $attachable->attach ($attachment, key => $value...)
482		778
…		…
526	=item cf::CLASS::attachment $name, ...	822	=item cf::CLASS::attachment $name, ...
527		823
528	Register an attachment by C<$name> through which attachable objects of the	824	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	825	given CLASS can refer to this attachment.
530		826
531	Some classes such as crossfire maps and objects can specify attachments	827	Some classes such as deliantra maps and objects can specify attachments
532	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.
533		829
534	These calls expect any number of the following handler/hook descriptions:	830	These calls expect any number of the following handler/hook descriptions:
535		831
536	=over 4	832	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	892	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	893	our @CB_MAP = ();
598		894
599	my %attachment;	895	my %attachment;
600		896
		897	sub cf::attachable::thawer_merge {
		898	# simply override everything except _meta
		899	local $_[0]{_meta};
		900	%{$_[0]} = %{$_[1]};
		901	}
		902
601	sub _attach_cb($$$$) {	903	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	904	my ($registry, $event, $prio, $cb) = @_;
603		905
604	use sort 'stable';	906	use sort 'stable';
605		907
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	941	$registry = $CB_TYPE[$object_type] ||= [];
640		942
641	} elsif ($type eq "subtype") {	943	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	944	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	945	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	946	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		947
646	} elsif ($type eq "package") {	948	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	949	my $pkg = shift @arg;
648		950
649	while (my ($name, $id) = each %cb_id) {	951	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	980	_attach $registry, $klass, @attach;
679	}	981	}
680		982
681	$obj->{$name} = \%arg;	983	$obj->{$name} = \%arg;
682	} else {	984	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	985	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	986	}
685		987
686	$obj->{_attachment}{$name} = undef;	988	$obj->{_attachment}{$name} = undef;
687	}	989	}
688		990
…		…
690	if (ref $_[0]) {	992	if (ref $_[0]) {
691	_object_attach @_;	993	_object_attach @_;
692	} else {	994	} else {
693	_attach shift->_attach_registry, @_;	995	_attach shift->_attach_registry, @_;
694	}	996	}
		997	_recalc_want;
695	};	998	};
696		999
697	# all those should be optimised	1000	# all those should be optimised
698	sub cf::attachable::detach {	1001	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	1002	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	1005	delete $obj->{_attachment}{$name};
703	reattach ($obj);	1006	reattach ($obj);
704	} else {	1007	} else {
705	Carp::croak "cannot, currently, detach class attachments";	1008	Carp::croak "cannot, currently, detach class attachments";
706	}	1009	}
		1010	_recalc_want;
707	};	1011	};
708		1012
709	sub cf::attachable::attached {	1013	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	1014	my ($obj, $name) = @_;
711		1015
…		…
726	";	1030	";
727	die if $@;	1031	die if $@;
728	}	1032	}
729		1033
730	our $override;	1034	our $override;
731	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?
732		1036
733	sub override {	1037	sub override {
734	$override = 1;	1038	$override = 1;
735	@invoke_results = ();	1039	@INVOKE_RESULTS = (@_);
736	}	1040	}
737		1041
738	sub do_invoke {	1042	sub do_invoke {
739	my $event = shift;	1043	my $event = shift;
740	my $callbacks = shift;	1044	my $callbacks = shift;
741		1045
742	@invoke_results = ();	1046	@INVOKE_RESULTS = ();
743		1047
744	local $override;	1048	local $override;
745		1049
746	for (@$callbacks) {	1050	for (@$callbacks) {
747	eval { &{$_->[1]} };	1051	eval { &{$_->[1]} };
…		…
756	}	1060	}
757		1061
758	0	1062	0
759	}	1063	}
760		1064
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1065	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1066
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1067	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1068
765	Generate an object-specific event with the given arguments.	1069	Generate an object-specific event with the given arguments.
766		1070
767	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
768	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
769	results (if you must, access C<@cf::invoke_results> directly).	1073	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1074
771	=back	1075	=back
772		1076
773	=cut	1077	=cut
774		1078
775	#############################################################################	1079	#############################################################################
776	# 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	}
777		1123
778	sub reattach {	1124	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1125	# basically do the same as instantiate, without calling instantiate
780	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
781		1130
782	my $registry = $obj->registry;	1131	my $registry = $obj->registry;
783		1132
784	@$registry = ();	1133	@$registry = ();
785		1134
…		…
800	cf::attachable->attach (	1149	cf::attachable->attach (
801	prio => -1000000,	1150	prio => -1000000,
802	on_instantiate => sub {	1151	on_instantiate => sub {
803	my ($obj, $data) = @_;	1152	my ($obj, $data) = @_;
804		1153
805	$data = from_json $data;	1154	$data = decode_json $data;
806		1155
807	for (@$data) {	1156	for (@$data) {
808	my ($name, $args) = @$_;	1157	my ($name, $args) = @$_;
809		1158
810	$obj->attach ($name, %{$args || {} });	1159	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1175	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1176	my ($filename, $rdata, $objs) = @_;
828		1177
829	sync_job {	1178	sync_job {
830	if (length $$rdata) {	1179	if (length $$rdata) {
		1180	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1181	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1182	$decname, length $$rdata, scalar @$objs;
833		1183
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$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;
837	aio_fsync $fh;	1189	aio_fsync $fh;
		1190	}
838	close $fh;	1191	aio_close $fh;
839		1192
840	if (@$objs) {	1193	if (@$objs) {
841	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) {
842	chmod SAVE_MODE, $fh;	1195	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1196	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	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;
845	aio_fsync $fh;	1200	aio_fsync $fh;
		1201	}
846	close $fh;	1202	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1203	aio_rename "$filename.pst~", "$filename.pst";
848	}	1204	}
849	} else {	1205	} else {
850	aio_unlink "$filename.pst";	1206	aio_unlink "$filename.pst";
851	}	1207	}
852		1208
853	aio_rename "$filename~", $filename;	1209	aio_rename "$filename~", $filename;
		1210
		1211	$filename =~ s%/[^/]+$%%;
		1212	aio_pathsync $filename if $cf::USE_FSYNC;
854	} else {	1213	} else {
855	warn "FATAL: $filename~: $!\n";	1214	warn "unable to save objects: $filename~: $!\n";
856	}	1215	}
857	} else {	1216	} else {
858	aio_unlink $filename;	1217	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1218	aio_unlink "$filename.pst";
860	}	1219	}
861	}	1220	};
862	}	1221	}
863		1222
864	sub object_freezer_as_string {	1223	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1224	my ($rdata, $objs) = @_;
866		1225
…		…
878	or return;	1237	or return;
879		1238
880	unless (aio_stat "$filename.pst") {	1239	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1240	(aio_load "$filename.pst", $av) >= 0
882	or return;	1241	or return;
		1242
883	$av = eval { (Storable::thaw $av)->{objs} };	1243	my $st = eval { Coro::Storable::thaw $av };
		1244	$av = $st->{objs};
884	}	1245	}
885		1246
		1247	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1248	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1249	$decname, length $data, scalar @{$av || []};
		1250
888	return ($data, $av);	1251	($data, $av)
889	}	1252	}
		1253
		1254	=head2 COMMAND CALLBACKS
		1255
		1256	=over 4
		1257
		1258	=cut
890		1259
891	#############################################################################	1260	#############################################################################
892	# command handling &c	1261	# command handling &c
893		1262
894	=item cf::register_command $name => \&callback($ob,$args);	1263	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1276	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1277	}
909		1278
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1279	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1280
912	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.
913		1286
914	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
915	called.	1288	called.
916		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
917	=cut	1301	=cut
918		1302
919	sub register_extcmd {	1303	sub register_extcmd {
920	my ($name, $cb) = @_;	1304	my ($name, $cb) = @_;
921		1305
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1306	$EXTCMD{$name} = $cb;
926	}	1307	}
		1308
		1309	sub register_exticmd {
		1310	my ($name, $cb) = @_;
		1311
		1312	$EXTICMD{$name} = $cb;
		1313	}
		1314
		1315	use File::Glob ();
927		1316
928	cf::player->attach (	1317	cf::player->attach (
929	on_command => sub {	1318	on_unknown_command => sub {
930	my ($pl, $name, $params) = @_;	1319	my ($pl, $name, $params) = @_;
931		1320
932	my $cb = $COMMAND{$name}	1321	my $cb = $COMMAND{$name}
933	or return;	1322	or return;
934		1323
…		…
939	cf::override;	1328	cf::override;
940	},	1329	},
941	on_extcmd => sub {	1330	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1331	my ($pl, $buf) = @_;
943		1332
944	my $msg = eval { from_json $buf };	1333	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1334
946	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
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1343	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1344	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1345	}
		1346
		1347	$pl->ext_reply ($reply, @reply)
		1348	if $reply;
		1349
952	} else {	1350	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1351	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1352	}
955		1353
956	cf::override;	1354	cf::override;
957	},	1355	},
958	);	1356	);
959		1357
960	sub register {	1358	# "readahead" all extensions
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1359	sub cache_extensions {
967	my ($path) = @_;	1360	my $grp = IO::AIO::aio_group;
968		1361
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1362	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
970	my $base = $1;	1363	for (grep /\.ext$/, @{$_[0]}) {
971	my $pkg = $1;	1364	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974
975	warn "loading '$path' into '$pkg'\n";
976
977	open my $fh, "<:utf8", $path
978	or die "$path: $!";
979
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }
1009
1010	# remove commands
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}	1365	}
1019	}	1366	};
1020		1367
1021	# remove extcmds	1368	$grp
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	1369	}
1035		1370
1036	sub load_extensions {	1371	sub load_extensions {
		1372	cf::sync_job {
		1373	my %todo;
		1374
1037	for my $ext (<$LIBDIR/*.ext>) {	1375	for my $path (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	1376	next unless -r $path;
1039	eval {	1377
1040	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	}
1041	1	1438	}
1042	} 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	}
1043	}	1449	};
1044	}	1450	}
1045		1451
1046	#############################################################################	1452	#############################################################################
1047	# load/save/clean perl data associated with a map
1048		1453
1049	*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($) {
1050	my ($map) = @_;	1508	my ($login) = @_;
1051		1509
1052	my $path = $map->tmpname;	1510	$cf::PLAYER{$login}
1053	defined $path or return;	1511	or !aio_stat path $login
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}	1512	}
1066		1513
1067	# 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
1068	cf::player->attach (	1541	cf::player->attach (
1069	on_load => sub {	1542	on_load => sub {
1070	my ($pl, $path) = @_;	1543	my ($pl, $path) = @_;
1071		1544
1072	for my $o (all_objects $pl->ob) {	1545	# restore slots saved in save, below
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1546	my $slots = delete $pl->{_slots};
1074	$o->set_ob_key_value ("_perl_data");
1075		1547
1076	%$o = %{ Storable::thaw pack "H*", $value };	1548	$pl->ob->current_weapon ($slots->[0]);
1077	}	1549	$pl->combat_ob ($slots->[1]);
1078	}	1550	$pl->ranged_ob ($slots->[2]);
1079	},	1551	},
1080	);	1552	);
1081		1553
1082	#############################################################################	1554	sub save($) {
		1555	my ($pl) = @_;
1083		1556
1084	=head2 CORE EXTENSIONS	1557	return if $pl->{deny_save};
1085		1558
1086	Functions and methods that extend core crossfire objects.	1559	my $path = path $pl;
		1560	my $guard = cf::lock_acquire "user_save:$path";
1087		1561
1088	=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($$@) {
		1731	my ($self, $type, @msg) = @_;
		1732
		1733	$self->ns->ext_msg ($type, @msg);
		1734	}
		1735
		1736	=head3 cf::region
1089		1737
1090	=over 4	1738	=over 4
1091		1739
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut	1740	=cut
1097		1741
1098	sub cf::player::exists($) {	1742	package cf::region;
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102		1743
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1744	=item cf::region::find_by_path $path
1104		1745
1105	Sends an ext reply to the player.	1746	Tries to decuce the likely region for a map knowing only its path.
1106		1747
1107	=cut	1748	=cut
1108		1749
1109	sub cf::player::ext_reply($$$%) {	1750	sub find_by_path($) {
1110	my ($self, $id, %msg) = @_;	1751	my ($path) = @_;
1111		1752
1112	$msg{msgid} = $id;	1753	my ($match, $specificity);
1113		1754
1114	$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
1115	}	1763	}
1116		1764
1117	=back	1765	=back
1118
1119		1766
1120	=head3 cf::map	1767	=head3 cf::map
1121		1768
1122	=over 4	1769	=over 4
1123		1770
…		…
1126	package cf::map;	1773	package cf::map;
1127		1774
1128	use Fcntl;	1775	use Fcntl;
1129	use Coro::AIO;	1776	use Coro::AIO;
1130		1777
		1778	use overload
		1779	'""' => \&as_string,
		1780	fallback => 1;
		1781
1131	our $MAX_RESET = 7200;	1782	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1783	our $DEFAULT_RESET = 3000;
1133		1784
1134	sub generate_random_map {	1785	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1786	my ($self, $rmp) = @_;
		1787
		1788	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1136		1789
1137	# mit "rum" bekleckern, nicht	1790	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1791	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1792	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1793	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1794	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1795	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1796	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1797	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1798	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1799	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$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},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1801	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1802	(cf::region::find $rmp->{region}), $rmp->{custom}
		1803	)
1151	}	1804	}
1152		1805
1153	# and all this just because we cannot iterate over	1806	=item cf::map->register ($regex, $prio)
1154	# all maps in C++...
1155	sub change_all_map_light {
1156	my ($change) = @_;
1157		1807
1158	$_->change_map_light ($change) for values %cf::MAP;	1808	Register a handler for the map path matching the given regex at the
1159	}	1809	givne priority (higher is better, built-in handlers have priority 0, the
		1810	default).
1160		1811
1161	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 {
1162	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) = @_;
1163		1951
1164	utf8::encode $path;	1952	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1953	my $f = new_from_file cf::object::thawer $path
1166	or return;	1954	or return;
1167		1955
1168	my $map = cf::map::new	1956	$self->_load_header ($f)
1169	or return;	1957	or return;
1170		1958
1171	$map->load_header ($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
1172	or return;	2005	or return;
		2006	$self->prepare_orig;
		2007	}
1173		2008
1174	$map->{load_path} = $path;	2009	$self->{deny_reset} = 1
		2010	if $self->no_reset;
1175		2011
1176	$map	2012	$self->default_region (cf::region::find_by_path $self->{path})
1177	}	2013	unless $self->default_region;
1178		2014
		2015	1
		2016	}
		2017
		2018	sub find;
1179	sub find_map {	2019	sub find {
1180	my ($path, $origin) = @_;	2020	my ($path, $origin) = @_;
1181		2021
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	2022	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		2023
1187	cf::lock_wait "map_find:$key";	2024	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1188
1189	$cf::MAP{$key} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	2025	my $guard2 = cf::lock_acquire "map_find:$path";
1191		2026
1192	# do it the slow way	2027	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	2028	my $map = new_from_path cf::map $path
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	2029	or return;
1207		2030
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215
1216	$map->path ($key);
1217	$map->{path} = $path;
1218	$map->{last_save} = $cf::RUNTIME;	2031	$map->{last_save} = $cf::RUNTIME;
1219	$map->last_access ($cf::RUNTIME);
1220		2032
1221	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;
1222	$map->reset;	2041	$map->reset;
1223	$map = find_map $path;	2042	return find $path;
1224	}	2043	}
1225		2044
1226	$cf::MAP{$key} = $map	2045	$cf::MAP{$path} = $map
1227	}	2046	}
1228	}	2047	}
		2048
		2049	sub pre_load { }
		2050	#sub post_load { } # XS
1229		2051
1230	sub load {	2052	sub load {
1231	my ($self) = @_;	2053	my ($self) = @_;
1232		2054
		2055	local $self->{deny_reset} = 1; # loading can take a long time
		2056
1233	my $path = $self->{path};	2057	my $path = $self->{path};
		2058
		2059	{
1234	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2060	my $guard = cf::lock_acquire "map_data:$path";
1235		2061
		2062	return unless $self->valid;
1236	return if $self->in_memory != cf::MAP_SWAPPED;	2063	return unless $self->in_memory == cf::MAP_SWAPPED;
1237		2064
1238	$self->in_memory (cf::MAP_LOADING);	2065	$self->in_memory (cf::MAP_LOADING);
1239		2066
1240	$self->alloc;	2067	$self->alloc;
1241	$self->load_objects ($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)
1242	or return;	2075	or return;
1243		2076
1244	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2077	$self->post_load_original
1245	if delete $self->{load_original};	2078	if delete $self->{load_original};
1246		2079
1247	if (my $uniq = $path->uniq_path) {	2080	if (my $uniq = $self->uniq_path) {
1248	utf8::encode $uniq;	2081	utf8::encode $uniq;
1249	if (aio_open $uniq, O_RDONLY, 0) {	2082	unless (aio_stat $uniq) {
		2083	if (my $f = new_from_file cf::object::thawer $uniq) {
1250	$self->clear_unique_items;	2084	$self->clear_unique_items;
1251	$self->load_objects ($uniq, 0);	2085	$self->_load_objects ($f);
		2086	$f->resolve_delayed_derefs;
		2087	}
1252	}	2088	}
1253	}	2089	}
1254		2090
		2091	$f->resolve_delayed_derefs;
		2092
		2093	cf::cede_to_tick;
1255	# now do the right thing for maps	2094	# now do the right thing for maps
1256	$self->link_multipart_objects;	2095	$self->link_multipart_objects;
1257
1258	if ($self->{path}->is_style_map) {
1259	$self->{deny_save} = 1;
1260	$self->{deny_reset} = 1;
1261	} else {
1262	$self->fix_auto_apply;
1263	$self->decay_objects;
1264	$self->update_buttons;
1265	$self->set_darkness_map;
1266	$self->difficulty ($self->estimate_difficulty)	2096	$self->difficulty ($self->estimate_difficulty)
1267	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;
1268	$self->activate;	2105	$self->activate;
1269	}	2106	}
1270		2107
		2108	$self->{last_save} = $cf::RUNTIME;
		2109	$self->last_access ($cf::RUNTIME);
		2110
1271	$self->in_memory (cf::MAP_IN_MEMORY);	2111	$self->in_memory (cf::MAP_ACTIVE);
1272	}	2112	}
1273		2113
1274	sub load_map_sync {	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	$neigh->load;
		2155	}
		2156	}
		2157
		2158	sub find_sync {
1275	my ($path, $origin) = @_;	2159	my ($path, $origin) = @_;
1276		2160
1277	#warn "load_map_sync<$path, $origin>\n";#d#	2161	cf::sync_job { find $path, $origin }
		2162	}
1278		2163
1279	cf::sync_job {	2164	sub do_load_sync {
1280	my $map = cf::map::find_map $path, $origin	2165	my ($map) = @_;
1281	or return;	2166
1282	$map->load;	2167	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1283	$map	2168	if $Coro::current == $Coro::main;
		2169
		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;
1284	}	2200	};
		2201	$MAP_PREFETCHER->prio (6);
		2202
		2203	()
1285	}	2204	}
1286		2205
1287	sub save {	2206	sub save {
1288	my ($self) = @_;	2207	my ($self) = @_;
1289		2208
		2209	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2210
1290	$self->{last_save} = $cf::RUNTIME;	2211	$self->{last_save} = $cf::RUNTIME;
1291		2212
1292	return unless $self->dirty;	2213	return unless $self->dirty;
1293		2214
1294	my $save = $self->{path}->save_path; utf8::encode $save;	2215	my $save = $self->save_path; utf8::encode $save;
1295	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2216	my $uniq = $self->uniq_path; utf8::encode $uniq;
1296		2217
1297	$self->{load_path} = $save;	2218	$self->{load_path} = $save;
1298		2219
1299	return if $self->{deny_save};	2220	return if $self->{deny_save};
1300		2221
		2222	local $self->{last_access} = $self->last_access;#d#
		2223
		2224	cf::async {
		2225	$Coro::current->{desc} = "map player save";
		2226	$_->contr->save for $self->players;
		2227	};
		2228
		2229	cf::get_slot 0.02;
		2230
1301	if ($uniq) {	2231	if ($uniq) {
1302	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2232	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1303	$self->save_objects ($uniq, cf::IO_UNIQUES);	2233	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1304	} else {	2234	} else {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2235	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1306	}	2236	}
1307	}	2237	}
1308		2238
1309	sub swap_out {	2239	sub swap_out {
1310	my ($self) = @_;	2240	my ($self) = @_;
1311		2241
		2242	# save first because save cedes
		2243	$self->save;
		2244
		2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2246
1312	return if $self->players;	2247	return if $self->players;
1313	return if $self->in_memory != cf::MAP_IN_MEMORY;	2248	return if $self->in_memory != cf::MAP_ACTIVE;
1314	return if $self->{deny_save};	2249	return if $self->{deny_save};
1315		2250
		2251	$self->in_memory (cf::MAP_SWAPPED);
		2252
1316	$self->save;	2253	$self->deactivate;
		2254	$_->clear_links_to ($self) for values %cf::MAP;
1317	$self->clear;	2255	$self->clear;
1318	$self->in_memory (cf::MAP_SWAPPED);
1319	}	2256	}
1320		2257
1321	sub reset_at {	2258	sub reset_at {
1322	my ($self) = @_;	2259	my ($self) = @_;
1323		2260
1324	# TODO: safety, remove and allow resettable per-player maps	2261	# TODO: safety, remove and allow resettable per-player maps
1325	return 1e99 if $self->{path}{user_rel};
1326	return 1e99 if $self->{deny_reset};	2262	return 1e99 if $self->{deny_reset};
1327		2263
1328	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2264	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1329	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2265	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1330		2266
…		…
1335	my ($self) = @_;	2271	my ($self) = @_;
1336		2272
1337	$self->reset_at <= $cf::RUNTIME	2273	$self->reset_at <= $cf::RUNTIME
1338	}	2274	}
1339		2275
1340	sub unlink_save {
1341	my ($self) = @_;
1342
1343	utf8::encode (my $save = $self->{path}->save_path);
1344	aioreq_pri 3; IO::AIO::aio_unlink $save;
1345	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1346	}
1347
1348	sub rename {
1349	my ($self, $new_path) = @_;
1350
1351	$self->unlink_save;
1352
1353	delete $cf::MAP{$self->path};
1354	$self->{path} = new cf::path $new_path;
1355	$self->path ($self->{path}->as_string);
1356	$cf::MAP{$self->path} = $self;
1357
1358	$self->save;
1359	}
1360
1361	sub reset {	2276	sub reset {
1362	my ($self) = @_;	2277	my ($self) = @_;
1363		2278
		2279	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2280
1364	return if $self->players;	2281	return if $self->players;
1365	return if $self->{path}{user_rel};#d#
1366		2282
1367	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	}
1368		2294
1369	delete $cf::MAP{$self->path};	2295	delete $cf::MAP{$self->path};
1370		2296
		2297	$self->deactivate;
1371	$_->clear_links_to ($self) for values %cf::MAP;	2298	$_->clear_links_to ($self) for values %cf::MAP;
		2299	$self->clear;
1372		2300
1373	$self->unlink_save;	2301	$self->unlink_save;
1374	$self->destroy;	2302	$self->destroy;
1375	}	2303	}
1376		2304
1377	my $nuke_counter = "aaaa";	2305	my $nuke_counter = "aaaa";
1378		2306
1379	sub nuke {	2307	sub nuke {
1380	my ($self) = @_;	2308	my ($self) = @_;
1381		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};
1382	$self->{deny_save} = 1;	2319	$self->{deny_save} = 1;
1383	$self->reset_timeout (1);	2320	$self->reset_timeout (1);
1384	$self->rename ("{nuke}/" . ($nuke_counter++));	2321	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2322
		2323	$cf::MAP{$self->path} = $self;
		2324	}
		2325
1385	$self->reset; # polite request, might not happen	2326	$self->reset; # polite request, might not happen
1386	}	2327	}
1387		2328
1388	sub customise_for {	2329	=item $maps = cf::map::tmp_maps
1389	my ($map, $ob) = @_;
1390		2330
1391	if ($map->per_player) {	2331	Returns an arrayref with all map paths of currently instantiated and saved
1392	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2332	maps. May block.
		2333
		2334	=cut
		2335
		2336	sub tmp_maps() {
1393	}	2337	[
1394		2338	map {
1395	$map	2339	utf8::decode $_;
		2340	/\.map$/
		2341	? normalise $_
		2342	: ()
		2343	} @{ aio_readdir $TMPDIR or [] }
		2344	]
1396	}	2345	}
1397		2346
1398	sub emergency_save {	2347	=item $maps = cf::map::random_maps
1399	local $cf::FREEZE = 1;
1400		2348
1401	warn "enter emergency map save\n";	2349	Returns an arrayref with all map paths of currently instantiated and saved
		2350	random maps. May block.
1402		2351
1403	cf::sync_job {	2352	=cut
1404	warn "begin emergency map save\n";	2353
1405	$_->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;
1406	};	2411	}
1407		2412
1408	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	}
1409	}	2468	}
1410		2469
1411	package cf;	2470	package cf;
1412		2471
1413	=back	2472	=back
1414
1415		2473
1416	=head3 cf::object::player	2474	=head3 cf::object::player
1417		2475
1418	=over 4	2476	=over 4
1419		2477
…		…
1422	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>
1423	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
1424	dialogue with the given NPC character.	2482	dialogue with the given NPC character.
1425		2483
1426	=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	};
1427		2499
1428	# rough implementation of a future "reply" method that works	2500	# rough implementation of a future "reply" method that works
1429	# with dialog boxes.	2501	# with dialog boxes.
1430	#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
1431	sub cf::object::player::reply($$$;$) {	2503	sub cf::object::player::reply($$$;$) {
…		…
1433		2505
1434	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2506	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1435		2507
1436	if ($self->{record_replies}) {	2508	if ($self->{record_replies}) {
1437	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2509	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2510
1438	} 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 {
1439	$msg = $npc->name . " says: $msg" if $npc;	2519	$msg = $npc->name . " says: $msg" if $npc;
1440	$self->message ($msg, $flags);	2520	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2521	}
1441	}	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 (@_);
1442	}	2533	}
1443		2534
1444	=item $player_object->may ("access")	2535	=item $player_object->may ("access")
1445		2536
1446	Returns wether the given player is authorized to access resource "access"	2537	Returns wether the given player is authorized to access resource "access"
…		…
1459		2550
1460	=item $player_object->enter_link	2551	=item $player_object->enter_link
1461		2552
1462	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}>).
1463		2554
1464	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.
1465	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.
1466		2561
1467	=item $player_object->leave_link ($map, $x, $y)	2562	=item $player_object->leave_link ($map, $x, $y)
1468		2563
1469	Moves the player out of the specila link map onto the given map. If the	2564	Moves the player out of the special C<{link}> map onto the specified
1470	map is not valid (or omitted), the player will be moved back to the	2565	map. If the map is not valid (or omitted), the player will be moved back
1471	location he/she was before the call to C<enter_link>, or, if that fails,	2566	to the location he/she was before the call to C<enter_link>, or, if that
1472	to the emergency map position.	2567	fails, to the emergency map position.
1473		2568
1474	Might block.	2569	Might block.
1475		2570
1476	=cut	2571	=cut
		2572
		2573	sub link_map {
		2574	unless ($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	$LINK_MAP
		2581	}
1477		2582
1478	sub cf::object::player::enter_link {	2583	sub cf::object::player::enter_link {
1479	my ($self) = @_;	2584	my ($self) = @_;
1480		2585
1481	$self->deactivate_recursive;	2586	$self->deactivate_recursive;
1482		2587
1483	return if $self->map == $LINK_MAP;	2588	return if UNIVERSAL::isa $self->map, "ext::map_link";
1484		2589
1485	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2590	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1486	if $self->map;	2591	if $self->map && $self->map->{path} ne "{link}";
1487		2592
1488	$self->enter_map ($LINK_MAP, 20, 20);	2593	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1489	}	2594	}
1490		2595
1491	sub cf::object::player::leave_link {	2596	sub cf::object::player::leave_link {
1492	my ($self, $map, $x, $y) = @_;	2597	my ($self, $map, $x, $y) = @_;
		2598
		2599	return unless $self->contr->active;
1493		2600
1494	my $link_pos = delete $self->{_link_pos};	2601	my $link_pos = delete $self->{_link_pos};
1495		2602
1496	unless ($map) {	2603	unless ($map) {
1497	# restore original map position	2604	# restore original map position
1498	($map, $x, $y) = @{ $link_pos || [] };	2605	($map, $x, $y) = @{ $link_pos || [] };
1499	$map = cf::map::find_map $map;	2606	$map = cf::map::find $map;
1500		2607
1501	unless ($map) {	2608	unless ($map) {
1502	($map, $x, $y) = @$EMERGENCY_POSITION;	2609	($map, $x, $y) = @$EMERGENCY_POSITION;
1503	$map = cf::map::find_map $map	2610	$map = cf::map::find $map
1504	or die "FATAL: cannot load emergency map\n";	2611	or die "FATAL: cannot load emergency map\n";
1505	}	2612	}
1506	}	2613	}
1507		2614
1508	($x, $y) = (-1, -1)	2615	($x, $y) = (-1, -1)
1509	unless (defined $x) && (defined $y);	2616	unless (defined $x) && (defined $y);
1510		2617
1511	# use -1 or undef as default coordinates, not 0, 0	2618	# use -1 or undef as default coordinates, not 0, 0
1512	($x, $y) = ($map->enter_x, $map->enter_y)	2619	($x, $y) = ($map->enter_x, $map->enter_y)
1513	if $x <=0 && $y <= 0;	2620	if $x <= 0 && $y <= 0;
1514		2621
1515	$map->load;	2622	$map->load;
		2623	$map->load_neighbours;
1516		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
1517	$self->activate_recursive;	2631	$self->activate_recursive;
1518	$self->enter_map ($map, $x, $y);
1519	}	2632	}
1520		2633
1521	cf::player->attach (	2634	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1522	on_logout => sub {
1523	my ($pl) = @_;
1524		2635
1525	# abort map switching before logout	2636	Moves the player to the given map-path and coordinates by first freezing
1526	if ($pl->ob->{_link_pos}) {	2637	her, loading and preparing them map, calling the provided $check callback
1527	cf::sync_job {	2638	that has to return the map if sucecssful, and then unfreezes the player on
1528	$pl->ob->leave_link	2639	the new (success) or old (failed) map position. In either case, $done will
1529	};	2640	be called at the end of this process.
1530	}
1531	},
1532	on_login => sub {
1533	my ($pl) = @_;
1534		2641
1535	# try to abort aborted map switching on player login :)	2642	Note that $check will be called with a potentially non-loaded map, so if
1536	# should happen only on crashes	2643	it needs a loaded map it has to call C<< ->load >>.
1537	if ($pl->ob->{_link_pos}) {
1538	$pl->ob->enter_link;
1539	Coro::async {
1540	# we need this sleep as the login has a concurrent enter_exit running
1541	# and this sleep increases chances of the player not ending up in scorn
1542	Coro::Timer::sleep 1;
1543	$pl->ob->leave_link;
1544	};
1545	}
1546	},
1547	);
1548		2644
1549	=item $player_object->goto_map ($path, $x, $y)
1550
1551	=cut	2645	=cut
1552		2646
		2647	our $GOTOGEN;
		2648
1553	sub cf::object::player::goto_map {	2649	sub cf::object::player::goto {
1554	my ($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;
1555		2654
1556	$self->enter_link;	2655	$self->enter_link;
1557		2656
1558	(Coro::async {	2657	(async {
1559	$path = new cf::path $path;	2658	$Coro::current->{desc} = "player::goto $path $x $y";
1560		2659
1561	my $map = cf::map::find_map $path->as_string;	2660	# *tag paths override both path and x|y
		2661	if ($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) {
1562	$map = $map->customise_for ($self) if $map;	2683	$map = $map->customise_for ($self);
1563		2684	$map = $check->($map) if $check && $map;
1564	# warn "entering ", $map->path, " at ($x, $y)\n"	2685	} else {
1565	# if $map;
1566
1567	$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	}
1568		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};
1569	$self->leave_link ($map, $x, $y);	2699	$self->leave_link ($map, $x, $y);
		2700	}
		2701
		2702	$done->() if $done;
1570	})->prio (1);	2703	})->prio (1);
1571	}	2704	}
1572		2705
1573	=item $player_object->enter_exit ($exit_object)	2706	=item $player_object->enter_exit ($exit_object)
1574		2707
…		…
1576		2709
1577	sub parse_random_map_params {	2710	sub parse_random_map_params {
1578	my ($spec) = @_;	2711	my ($spec) = @_;
1579		2712
1580	my $rmp = { # defaults	2713	my $rmp = { # defaults
1581	xsize => 10,	2714	xsize => (cf::rndm 15, 40),
1582	ysize => 10,	2715	ysize => (cf::rndm 15, 40),
		2716	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2717	#layout => string,
1583	};	2718	};
1584		2719
1585	for (split /\n/, $spec) {	2720	for (split /\n/, $spec) {
1586	my ($k, $v) = split /\s+/, $_, 2;	2721	my ($k, $v) = split /\s+/, $_, 2;
1587		2722
…		…
1599	# that depends on the exit object	2734	# that depends on the exit object
1600		2735
1601	my $rmp = parse_random_map_params $exit->msg;	2736	my $rmp = parse_random_map_params $exit->msg;
1602		2737
1603	if ($exit->map) {	2738	if ($exit->map) {
1604	$rmp->{region} = $exit->map->region_name;	2739	$rmp->{region} = $exit->region->name;
1605	$rmp->{origin_map} = $exit->map->path;	2740	$rmp->{origin_map} = $exit->map->path;
1606	$rmp->{origin_x} = $exit->x;	2741	$rmp->{origin_x} = $exit->x;
1607	$rmp->{origin_y} = $exit->y;	2742	$rmp->{origin_y} = $exit->y;
		2743
		2744	$exit->map->touch;
1608	}	2745	}
1609		2746
1610	$rmp->{random_seed} ||= $exit->random_seed;	2747	$rmp->{random_seed} ||= $exit->random_seed;
1611		2748
1612	my $data = cf::to_json $rmp;	2749	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1613	my $md5 = Digest::MD5::md5_hex $data;	2750	my $md5 = Digest::MD5::md5_hex $data;
		2751	my $meta = "$RANDOMDIR/$md5.meta";
1614		2752
1615	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) {
1616	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;
1617		2757
		2758	my $slaying = "?random/$md5";
		2759
		2760	if ($exit->valid) {
1618	$exit->slaying ("?random/$md5");	2761	$exit->slaying ("?random/$md5");
1619	$exit->msg (undef);	2762	$exit->msg (undef);
		2763	}
1620	}	2764	}
1621	}	2765	}
1622		2766
1623	sub cf::object::player::enter_exit {	2767	sub cf::object::player::enter_exit {
1624	my ($self, $exit) = @_;	2768	my ($self, $exit) = @_;
1625		2769
1626	return unless $self->type == cf::PLAYER;	2770	return unless $self->type == cf::PLAYER;
1627		2771
1628	$self->enter_link;	2772	$self->enter_link;
1629		2773
1630	(Coro::async {	2774	(async {
		2775	$Coro::current->{desc} = "enter_exit";
		2776
1631	unless (eval {	2777	unless (eval {
		2778	$self->deactivate_recursive; # just to be sure
1632		2779
		2780	# random map handling
		2781	{
		2782	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2783
1633	prepare_random_map $exit	2784	prepare_random_map $exit
1634	if $exit->slaying eq "/!";	2785	if $exit->slaying eq "/!";
		2786	}
1635		2787
1636	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;
1637	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2789	my $x = $exit->stats->hp;
		2790	my $y = $exit->stats->sp;
1638		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
1639	1;	2798	1
1640	}) {	2799	}) {
1641	$self->message ("Something went wrong deep within the crossfire server. "	2800	$self->message ("Something went wrong deep within the deliantra server. "
1642	. "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. "
1643	. "Please report this to the dungeon master",	2802	. "Please report this to the dungeon master!",
1644	cf::NDI_UNIQUE | cf::NDI_RED);	2803	cf::NDI_UNIQUE | cf::NDI_RED);
1645		2804
1646	warn "ERROR in enter_exit: $@";	2805	warn "ERROR in enter_exit: $@";
1647	$self->leave_link;	2806	$self->leave_link;
1648	}	2807	}
1649	})->prio (1);	2808	})->prio (1);
…		…
1662		2821
1663	sub cf::client::send_drawinfo {	2822	sub cf::client::send_drawinfo {
1664	my ($self, $text, $flags) = @_;	2823	my ($self, $text, $flags) = @_;
1665		2824
1666	utf8::encode $text;	2825	utf8::encode $text;
1667	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2826	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1668	}	2827	}
1669		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	}
1670		3050
1671	=item $success = $client->query ($flags, "text", \&cb)	3051	=item $success = $client->query ($flags, "text", \&cb)
1672		3052
1673	Queues a query to the client, calling the given callback with	3053	Queues a query to the client, calling the given callback with
1674	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>,
1675	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>.
1676		3056
1677	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
1678	reliable at some point in the future.	3058	become reliable at some point in the future.
1679		3059
1680	=cut	3060	=cut
1681		3061
1682	sub cf::client::query {	3062	sub cf::client::query {
1683	my ($self, $flags, $text, $cb) = @_;	3063	my ($self, $flags, $text, $cb) = @_;
…		…
1691	utf8::encode $text;	3071	utf8::encode $text;
1692	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3072	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1693		3073
1694	$self->send_packet ($self->{query_queue}[0][0])	3074	$self->send_packet ($self->{query_queue}[0][0])
1695	if @{ $self->{query_queue} } == 1;	3075	if @{ $self->{query_queue} } == 1;
		3076
		3077	1
1696	}	3078	}
1697		3079
1698	cf::client->attach (	3080	cf::client->attach (
		3081	on_connect => sub {
		3082	my ($ns) = @_;
		3083
		3084	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3085	},
1699	on_reply => sub {	3086	on_reply => sub {
1700	my ($ns, $msg) = @_;	3087	my ($ns, $msg) = @_;
1701		3088
1702	# this weird shuffling is so that direct followup queries	3089	# this weird shuffling is so that direct followup queries
1703	# get handled first	3090	# get handled first
1704	my $queue = delete $ns->{query_queue};	3091	my $queue = delete $ns->{query_queue}
		3092	or return; # be conservative, not sure how that can happen, but we saw a crash here
1705		3093
1706	(shift @$queue)->[1]->($msg);	3094	(shift @$queue)->[1]->($msg);
		3095	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1707		3096
1708	push @{ $ns->{query_queue} }, @$queue;	3097	push @{ $ns->{query_queue} }, @$queue;
1709		3098
1710	if (@{ $ns->{query_queue} } == @$queue) {	3099	if (@{ $ns->{query_queue} } == @$queue) {
1711	if (@$queue) {	3100	if (@$queue) {
…		…
1713	} else {	3102	} else {
1714	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3103	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1715	}	3104	}
1716	}	3105	}
1717	},	3106	},
		3107	on_exticmd => sub {
		3108	my ($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	},
1718	);	3133	);
1719		3134
1720	=item $client->coro (\&cb)	3135	=item $client->async (\&cb)
1721		3136
1722	Create a new coroutine, running the specified callback. The coroutine will	3137	Create a new coroutine, running the specified callback. The coroutine will
1723	be automatically cancelled when the client gets destroyed (e.g. on logout,	3138	be automatically cancelled when the client gets destroyed (e.g. on logout,
1724	or loss of connection).	3139	or loss of connection).
1725		3140
1726	=cut	3141	=cut
1727		3142
1728	sub cf::client::coro {	3143	sub cf::client::async {
1729	my ($self, $cb) = @_;	3144	my ($self, $cb) = @_;
1730		3145
1731	my $coro; $coro = async {	3146	my $coro = &Coro::async ($cb);
1732	eval {
1733	$cb->();
1734	};
1735	warn $@ if $@;
1736	};
1737		3147
1738	$coro->on_destroy (sub {	3148	$coro->on_destroy (sub {
1739	delete $self->{_coro}{$coro+0};	3149	delete $self->{_coro}{$coro+0};
1740	});	3150	});
1741		3151
…		…
1743		3153
1744	$coro	3154	$coro
1745	}	3155	}
1746		3156
1747	cf::client->attach (	3157	cf::client->attach (
1748	on_destroy => sub {	3158	on_client_destroy => sub {
1749	my ($ns) = @_;	3159	my ($ns) = @_;
1750		3160
1751	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3161	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1752	},	3162	},
1753	);	3163	);
…		…
1768	our $safe = new Safe "safe";	3178	our $safe = new Safe "safe";
1769	our $safe_hole = new Safe::Hole;	3179	our $safe_hole = new Safe::Hole;
1770		3180
1771	$SIG{FPE} = 'IGNORE';	3181	$SIG{FPE} = 'IGNORE';
1772		3182
1773	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3183	$safe->permit_only (Opcode::opset qw(
		3184	:base_core :base_mem :base_orig :base_math :base_loop
		3185	grepstart grepwhile mapstart mapwhile
		3186	sort time
		3187	));
1774		3188
1775	# here we export the classes and methods available to script code	3189	# here we export the classes and methods available to script code
1776		3190
1777	=pod	3191	=pod
1778		3192
1779	The following fucntions and emthods are available within a safe environment:	3193	The following functions and methods are available within a safe environment:
1780		3194
1781	cf::object contr pay_amount pay_player map	3195	cf::object
		3196	contr pay_amount pay_player map x y force_find force_add destroy
		3197	insert remove name archname title slaying race decrease split
		3198	value
		3199
1782	cf::object::player player	3200	cf::object::player
1783	cf::player peaceful	3201	player
1784	cf::map trigger	3202
		3203	cf::player
		3204	peaceful
		3205
		3206	cf::map
		3207	trigger
1785		3208
1786	=cut	3209	=cut
1787		3210
1788	for (	3211	for (
1789	["cf::object" => qw(contr pay_amount pay_player map)],	3212	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3213	insert remove inv nrof name archname title slaying race
		3214	decrease split destroy change_exp value msg lore send_msg)],
1790	["cf::object::player" => qw(player)],	3215	["cf::object::player" => qw(player)],
1791	["cf::player" => qw(peaceful)],	3216	["cf::player" => qw(peaceful send_msg)],
1792	["cf::map" => qw(trigger)],	3217	["cf::map" => qw(trigger)],
1793	) {	3218	) {
1794	no strict 'refs';	3219	no strict 'refs';
1795	my ($pkg, @funs) = @$_;	3220	my ($pkg, @funs) = @$_;
1796	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3221	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1814		3239
1815	my $qcode = $code;	3240	my $qcode = $code;
1816	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3241	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1817	$qcode =~ s/\n/\\n/g;	3242	$qcode =~ s/\n/\\n/g;
1818		3243
		3244	%vars = (_dummy => 0) unless %vars;
		3245
		3246	my @res;
1819	local $_;	3247	local $_;
1820	local @safe::cf::_safe_eval_args = values %vars;
1821		3248
1822	my $eval =	3249	my $eval =
1823	"do {\n"	3250	"do {\n"
1824	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3251	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1825	. "#line 0 \"{$qcode}\"\n"	3252	. "#line 0 \"{$qcode}\"\n"
1826	. $code	3253	. $code
1827	. "\n}"	3254	. "\n}"
1828	;	3255	;
1829		3256
		3257	if ($CFG{safe_eval}) {
1830	sub_generation_inc;	3258	sub_generation_inc;
		3259	local @safe::cf::_safe_eval_args = values %vars;
1831	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3260	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1832	sub_generation_inc;	3261	sub_generation_inc;
		3262	} else {
		3263	local @cf::_safe_eval_args = values %vars;
		3264	@res = wantarray ? eval eval : scalar eval $eval;
		3265	}
1833		3266
1834	if ($@) {	3267	if ($@) {
1835	warn "$@";	3268	warn "$@";
1836	warn "while executing safe code '$code'\n";	3269	warn "while executing safe code '$code'\n";
1837	warn "with arguments " . (join " ", %vars) . "\n";	3270	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1856	=cut	3289	=cut
1857		3290
1858	sub register_script_function {	3291	sub register_script_function {
1859	my ($fun, $cb) = @_;	3292	my ($fun, $cb) = @_;
1860		3293
1861	no strict 'refs';	3294	$fun = "safe::$fun" if $CFG{safe_eval};
1862	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3295	*$fun = $safe_hole->wrap ($cb);
1863	}	3296	}
1864		3297
1865	=back	3298	=back
1866		3299
1867	=cut	3300	=cut
1868		3301
1869	#############################################################################	3302	#############################################################################
		3303	# the server's init and main functions
1870		3304
1871	=head2 EXTENSION DATABASE SUPPORT	3305	sub load_facedata($) {
		3306	my ($path) = @_;
1872		3307
1873	Crossfire maintains a very simple database for extension use. It can	3308	# HACK to clear player env face cache, we need some signal framework
1874	currently store anything that can be serialised using Storable, which	3309	# for this (global event?)
1875	excludes objects.	3310	%ext::player_env::MUSIC_FACE_CACHE = ();
1876		3311
1877	The parameter C<$family> should best start with the name of the extension	3312	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1878	using it, it should be unique.
1879		3313
1880	=over 4	3314	warn "loading facedata from $path\n";
1881		3315
1882	=item $hashref = cf::db_get $family	3316	my $facedata;
		3317	0 < aio_load $path, $facedata
		3318	or die "$path: $!";
1883		3319
1884	Return a hashref for use by the extension C<$family>, which can be	3320	$facedata = Coro::Storable::thaw $facedata;
1885	modified. After modifications, you have to call C<cf::db_dirty> or
1886	C<cf::db_sync>.
1887		3321
1888	=item $value = cf::db_get $family => $key	3322	$facedata->{version} == 2
		3323	or cf::cleanup "$path: version mismatch, cannot proceed.";
1889		3324
1890	Returns a single value from the database	3325	# patch in the exptable
1891		3326	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1892	=item cf::db_put $family => $hashref	3327	$facedata->{resource}{"res/exp_table"} = {
1893		3328	type => FT_RSRC,
1894	Stores the given family hashref into the database. Updates are delayed, if	3329	data => $exp_table,
1895	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3330	hash => (Digest::MD5::md5 $exp_table),
1896
1897	=item cf::db_put $family => $key => $value
1898
1899	Stores the given C<$value> in the family hash. Updates are delayed, if you
1900	want the data to be synced to disk immediately, use C<cf::db_sync>.
1901
1902	=item cf::db_dirty
1903
1904	Marks the database as dirty, to be updated at a later time.
1905
1906	=item cf::db_sync
1907
1908	Immediately write the database to disk I<if it is dirty>.
1909
1910	=cut
1911
1912	our $DB;
1913
1914	{
1915	my $path = cf::localdir . "/database.pst";
1916
1917	sub db_load() {
1918	$DB = stat $path ? Storable::retrieve $path : { };
1919	}
1920
1921	my $pid;
1922
1923	sub db_save() {
1924	waitpid $pid, 0 if $pid;
1925	if (0 == ($pid = fork)) {
1926	$DB->{_meta}{version} = 1;
1927	Storable::nstore $DB, "$path~";
1928	rename "$path~", $path;
1929	cf::_exit 0 if defined $pid;
1930	}
1931	}
1932
1933	my $dirty;
1934
1935	sub db_sync() {
1936	db_save if $dirty;
1937	undef $dirty;
1938	}
1939
1940	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1941	db_sync;
1942	});	3331	};
		3332	cf::cede_to_tick;
1943		3333
1944	sub db_dirty() {
1945	$dirty = 1;
1946	$idle->start;
1947	}	3334	{
		3335	my $faces = $facedata->{faceinfo};
1948		3336
1949	sub db_get($;$) {	3337	while (my ($face, $info) = each %$faces) {
1950	@_ >= 2	3338	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1951	? $DB->{$_[0]}{$_[1]}
1952	: ($DB->{$_[0]} ||= { })
1953	}
1954		3339
1955	sub db_put($$;$) {	3340	cf::face::set_visibility $idx, $info->{visibility};
1956	if (@_ >= 3) {	3341	cf::face::set_magicmap $idx, $info->{magicmap};
1957	$DB->{$_[0]}{$_[1]} = $_[2];	3342	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1958	} else {	3343	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1959	$DB->{$_[0]} = $_[1];
1960	}
1961	db_dirty;
1962	}
1963		3344
1964	cf::global->attach (	3345	cf::cede_to_tick;
1965	prio => 10000,
1966	on_cleanup => sub {
1967	db_sync;
1968	},	3346	}
1969	);
1970	}
1971		3347
1972	#############################################################################	3348	while (my ($face, $info) = each %$faces) {
1973	# the server's main()	3349	next unless $info->{smooth};
1974		3350
1975	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
1976	open my $fh, "<:utf8", cf::confdir . "/config"	3479	open my $fh, "<:utf8", "$CONFDIR/config"
1977	or return;	3480	or return;
1978		3481
1979	local $/;	3482	local $/;
1980	*CFG = YAML::Syck::Load <$fh>;	3483	*CFG = YAML::XS::Load scalar <$fh>;
		3484
		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};
		3489
		3490	if (exists $CFG{mlockall}) {
		3491	eval {
		3492	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3493	and die "WARNING: m(un)lockall failed: $!\n";
		3494	};
		3495	warn $@ if $@;
		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;
1981	}	3527	}
1982		3528
1983	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
1984	# we must not ever block the main coroutine	3544	# we must not ever block the main coroutine
1985	local $Coro::idle = sub {	3545	local $Coro::idle = sub {
1986	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#
1987	(Coro::unblock_sub {	3547	(async {
1988	Event::one_event;	3548	$Coro::current->{desc} = "IDLE BUG HANDLER";
1989	})->();	3549	EV::loop EV::LOOP_ONESHOT;
		3550	})->prio (Coro::PRIO_MAX);
1990	};	3551	};
1991		3552
1992	cfg_load;	3553	evthread_start IO::AIO::poll_fileno;
1993	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
1994	load_extensions;	3571	load_extensions;
1995	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;
1996	}	3583	}
1997		3584
1998	#############################################################################	3585	#############################################################################
1999	# initialisation	3586	# initialisation and cleanup
2000		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 $pkg\n";#d#
		3768	}
		3769
2001	sub reload() {	3770	sub do_reload_perl() {
2002	# can/must only be called in main	3771	# can/must only be called in main
2003	if ($Coro::current != $Coro::main) {	3772	if ($Coro::current != $Coro::main) {
2004	warn "can only reload from main coroutine\n";	3773	warn "can only reload from main coroutine";
2005	return;	3774	return;
2006	}	3775	}
2007		3776
		3777	return if $RELOAD++;
		3778
		3779	my $t1 = AE::time;
		3780
		3781	while ($RELOAD) {
2008	warn "reloading...";	3782	warn "reloading...";
2009		3783
2010	local $FREEZE = 1;	3784	warn "entering sync_job";
		3785
		3786	cf::sync_job {
		3787	cf::write_runtime_sync; # external watchdog should not bark
2011	cf::emergency_save;	3788	cf::emergency_save;
		3789	cf::write_runtime_sync; # external watchdog should not bark
2012		3790
2013	eval {	3791	warn "syncing database to disk";
		3792	BDB::db_env_txn_checkpoint $DB_ENV;
		3793
2014	# 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
2015		3795
2016	# cancel all watchers	3796	warn "flushing outstanding aio requests";
2017	for (Event::all_watchers) {	3797	while (IO::AIO::nreqs || BDB::nreqs) {
2018	$_->cancel if $_->data & WF_AUTOCANCEL;	3798	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2019	}
2020
2021	# cancel all extension coros
2022	$_->cancel for values %EXT_CORO;
2023	%EXT_CORO = ();
2024
2025	# unload all extensions
2026	for (@exts) {
2027	warn "unloading <$_>";
2028	unload_extension $_;
2029	}
2030
2031	# unload all modules loaded from $LIBDIR
2032	while (my ($k, $v) = each %INC) {
2033	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2034
2035	warn "removing <$k>";
2036	delete $INC{$k};
2037
2038	$k =~ s/\.pm$//;
2039	$k =~ s/\//::/g;
2040
2041	if (my $cb = $k->can ("unload_module")) {
2042	$cb->();
2043	}	3799	}
2044		3800
2045	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;
2046	}	3825	}
2047		3826
2048	# sync database to disk	3827	warn "unloading all perl modules loaded from $LIBDIR";
2049	cf::db_sync;	3828	while (my ($k, $v) = each %INC) {
2050	IO::AIO::flush;	3829	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2051		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 $k;
		3842	}
		3843
2052	# get rid of safe::, as good as possible	3844	warn "getting rid of safe::, as good as possible";
2053	Symbol::delete_package "safe::$_"	3845	clear_package "safe::$_"
2054	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);
2055		3847
2056	# remove register_script_function callbacks	3848	warn "unloading cf.pm \"a bit\"";
2057	# TODO
2058
2059	# unload cf.pm "a bit"
2060	delete $INC{"cf.pm"};	3849	delete $INC{"cf.pm"};
		3850	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2061		3851
2062	# don't, removes xs symbols, too,	3852	# don't, removes xs symbols, too,
2063	# and global variables created in xs	3853	# and global variables created in xs
2064	#Symbol::delete_package __PACKAGE__;	3854	#clear_package __PACKAGE__;
2065		3855
2066	# reload cf.pm	3856	warn "unload completed, starting to reload now";
		3857
2067	warn "reloading cf.pm";	3858	warn "reloading cf.pm";
2068	require cf;	3859	require cf;
2069	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3860	cf::_connect_to_perl_1;
2070		3861
2071	# load config and database again	3862	warn "loading config and database again";
2072	cf::cfg_load;	3863	cf::reload_config;
2073	cf::db_load;
2074		3864
2075	# load extensions
2076	warn "load extensions";	3865	warn "loading extensions";
2077	cf::load_extensions;	3866	cf::load_extensions;
2078		3867
2079	# 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 $@;
		3885	cf::cleanup "error while reloading, exiting.";
		3886	};
		3887
2080	warn "reattach";	3888	warn "reloaded";
2081	_global_reattach;	3889	--$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 $RELOAD_WATCHER;
		3908	};
2082	};	3909	};
2083
2084	if ($@) {
2085	warn $@;
2086	warn "error while reloading, exiting.";
2087	exit 1;
2088	}
2089
2090	warn "reloaded successfully";
2091	};
2092
2093	#############################################################################
2094
2095	unless ($LINK_MAP) {
2096	$LINK_MAP = cf::map::new;
2097
2098	$LINK_MAP->width (41);
2099	$LINK_MAP->height (41);
2100	$LINK_MAP->alloc;
2101	$LINK_MAP->path ("{link}");
2102	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2103	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2104
2105	# dirty hack because... archetypes are not yet loaded
2106	Event->timer (
2107	after => 2,
2108	cb => sub {
2109	$_[0]->w->cancel;
2110
2111	# provide some exits "home"
2112	my $exit = cf::object::new "exit";
2113
2114	$exit->slaying ($EMERGENCY_POSITION->[0]);
2115	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2116	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2117
2118	$LINK_MAP->insert ($exit->clone, 19, 19);
2119	$LINK_MAP->insert ($exit->clone, 19, 20);
2120	$LINK_MAP->insert ($exit->clone, 19, 21);
2121	$LINK_MAP->insert ($exit->clone, 20, 19);
2122	$LINK_MAP->insert ($exit->clone, 20, 21);
2123	$LINK_MAP->insert ($exit->clone, 21, 19);
2124	$LINK_MAP->insert ($exit->clone, 21, 20);
2125	$LINK_MAP->insert ($exit->clone, 21, 21);
2126
2127	$exit->destroy;
2128	});
2129
2130	$LINK_MAP->{deny_save} = 1;
2131	$LINK_MAP->{deny_reset} = 1;
2132
2133	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2134	}	3910	}
2135
2136	register "<global>", __PACKAGE__;
2137		3911
2138	register_command "reload" => sub {	3912	register_command "reload" => sub {
2139	my ($who, $arg) = @_;	3913	my ($who, $arg) = @_;
2140		3914
2141	if ($who->flag (FLAG_WIZ)) {	3915	if ($who->flag (FLAG_WIZ)) {
2142	$who->message ("start of reload.");
2143	reload;
2144	$who->message ("end of reload.");	3916	$who->message ("reloading server.");
		3917	async {
		3918	$Coro::current->{desc} = "perl_reload";
		3919	reload_perl;
		3920	};
2145	}	3921	}
2146	};	3922	};
2147		3923
2148	unshift @INC, $LIBDIR;	3924	unshift @INC, $LIBDIR;
2149		3925
2150	$TICK_WATCHER = Event->timer (	3926	my $bug_warning = 0;
2151	reentrant => 0,	3927
2152	prio => 0,	3928	our @WAIT_FOR_TICK;
2153	at => $NEXT_TICK || $TICK,	3929	our @WAIT_FOR_TICK_BEGIN;
2154	data => WF_AUTOCANCEL,	3930
2155	cb => sub {	3931	sub wait_for_tick {
2156	unless ($FREEZE) {	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
2157	cf::server_tick; # one server iteration	3954	cf::server_tick; # one server iteration
2158	$RUNTIME += $TICK;
2159	}
2160		3955
2161	$NEXT_TICK += $TICK;	3956	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2162		3957
2163	# if we are delayed by four ticks or more, skip them all	3958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2164	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3959	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2165		3960	Coro::async_pool {
2166	$TICK_WATCHER->at ($NEXT_TICK);	3961	$Coro::current->{desc} = "runtime saver";
2167	$TICK_WATCHER->start;
2168	},
2169	);
2170
2171	IO::AIO::max_poll_time $TICK * 0.2;
2172
2173	Event->io (
2174	fd => IO::AIO::poll_fileno,
2175	poll => 'r',
2176	prio => 5,
2177	data => WF_AUTOCANCEL,
2178	cb => \&IO::AIO::poll_cb,
2179	);
2180
2181	Event->timer (
2182	data => WF_AUTOCANCEL,
2183	after => 0,
2184	interval => 10,
2185	cb => sub {
2186	(Coro::unblock_sub {
2187	write_runtime	3962	write_runtime_sync
2188	or warn "ERROR: unable to write runtime file: $!";	3963	or warn "ERROR: unable to write runtime file: $!";
2189	})->();	3964	};
2190	},	3965	}
2191	);	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;
		4081
		4082	END { cf::emergency_save }
2192		4083
2193	1	4084	1
2194		4085

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