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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 2007 UTC vs.
Revision 1.522 by root, Sat Apr 17 02:22:14 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
		115
		116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	118	our $NEXT_TICK;
45	our $NOW;	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
		123	our $BDB_TRICKLE_WATCHER;
		124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
46		127
47	our %CFG;	128	our %CFG;
48		129
49	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
51		133
52	our %MAP; # all maps	134	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	135	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	136	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	137
		138	# used to convert map paths into valid unix filenames by replacing / by ∕
		139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
56		150
57	binmode STDOUT;	151	binmode STDOUT;
58	binmode STDERR;	152	binmode STDERR;
59		153
60	# read virtual server time, if available	154	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
65	}	159	}
66		160
67	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		162
73	# a special map that is always available	163	mkdir $_
74	our $LINK_MAP;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		165
75	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
		167
		168	sub cf::map::normalise;
		169
		170	sub in_main() {
		171	$Coro::current == $Coro::main
		172	}
		173
		174	#############################################################################
		175
		176	%REFLECT = ();
		177	for (@REFLECT) {
		178	my $reflect = JSON::XS::decode_json $_;
		179	$REFLECT{$reflect->{class}} = $reflect;
		180	}
		181
		182	# this is decidedly evil
		183	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
76		184
77	#############################################################################	185	#############################################################################
78		186
79	=head2 GLOBAL VARIABLES	187	=head2 GLOBAL VARIABLES
80		188
…		…
87	=item $cf::RUNTIME	195	=item $cf::RUNTIME
88		196
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	197	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	198	every server tick.
91		199
92	=item $cf::LIBDIR	200	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		201	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		202	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		203
94	The perl library directory, where extensions and cf-specific modules can	204	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	205	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		206	unique-items directory, player file directory, random maps directory and
		207	database environment.
96		208
97	=item $cf::NOW	209	=item $cf::NOW
98		210
99	The time of the last (current) server tick.	211	The time of the last (current) server tick.
100		212
101	=item $cf::TICK	213	=item $cf::TICK
102		214
103	The interval between server ticks, in seconds.	215	The interval between server ticks, in seconds.
104		216
		217	=item $cf::LOADAVG
		218
		219	The current CPU load on the server (alpha-smoothed), as a value between 0
		220	(none) and 1 (overloaded), indicating how much time is spent on processing
		221	objects per tick. Healthy values are < 0.5.
		222
		223	=item $cf::LOAD
		224
		225	The raw value load value from the last tick.
		226
105	=item %cf::CFG	227	=item %cf::CFG
106		228
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	229	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	230	from wherever your confdir points to.
109		231
		232	=item cf::wait_for_tick, cf::wait_for_tick_begin
		233
		234	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		235	returns directly I<after> the tick processing (and consequently, can only wake one process
		236	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		237
		238	=item @cf::INVOKE_RESULTS
		239
		240	This array contains the results of the last C<invoke ()> call. When
		241	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		242	that call.
		243
		244	=item %cf::REFLECT
		245
		246	Contains, for each (C++) class name, a hash reference with information
		247	about object members (methods, scalars, arrays and flags) and other
		248	metadata, which is useful for introspection.
		249
110	=back	250	=back
111		251
112	=cut	252	=cut
113		253
114	BEGIN {	254	$Coro::State::WARNHOOK = sub {
115	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	255	my $msg = join "", @_;
117	utf8::encode $msg;
118		256
119	$msg .= "\n"	257	$msg .= "\n"
120	unless $msg =~ /\n$/;	258	unless $msg =~ /\n$/;
121		259
		260	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		261
122	LOG llevError, "cfperl: $msg";	262	LOG llevError, $msg;
123	};	263	};
124	}	264
		265	$Coro::State::DIEHOOK = sub {
		266	return unless $^S eq 0; # "eq", not "=="
		267
		268	warn Carp::longmess $_[0];
		269
		270	if (in_main) {#d#
		271	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		272	return;#d#
		273	}#d#
		274
		275	# kill coroutine otherwise
		276	Coro::terminate
		277	};
125		278
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	279	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	280	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	281	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	282	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	283	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		284	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	285	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		286
133	# we bless all objects into (empty) derived classes to force a method lookup	287	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	288	# within the Safe compartment.
135	for my $pkg (qw(	289	for my $pkg (qw(
136	cf::global cf::attachable	290	cf::global cf::attachable
137	cf::object cf::object::player	291	cf::object cf::object::player
138	cf::client cf::player	292	cf::client cf::player
139	cf::arch cf::living	293	cf::arch cf::living
		294	cf::map cf::mapspace
140	cf::map cf::party cf::region	295	cf::party cf::region
141	)) {	296	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	297	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	298	}
145		299
146	$Event::DIED = sub {	300	$EV::DIED = sub {
147	warn "error in event callback: @_";	301	Carp::cluck "error in event callback: @_";
148	};	302	};
149		303
150	my %ext_pkg;	304	#############################################################################
151	my @exts;
152	my @hook;
153		305
154	=head2 UTILITY FUNCTIONS	306	=head2 UTILITY FUNCTIONS
155		307
156	=over 4	308	=over 4
157		309
158	=cut	310	=item dumpval $ref
159		311
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	312	=cut
161		313
		314	sub dumpval {
		315	eval {
		316	local $SIG{__DIE__};
		317	my $d;
		318	if (1) {
		319	$d = new Data::Dumper([$_[0]], ["*var"]);
		320	$d->Terse(1);
		321	$d->Indent(2);
		322	$d->Quotekeys(0);
		323	$d->Useqq(1);
		324	#$d->Bless(...);
		325	$d->Seen($_[1]) if @_ > 1;
		326	$d = $d->Dump();
		327	}
		328	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		329	$d
		330	} || "[unable to dump $_[0]: '$@']";
		331	}
		332
162	=item $ref = cf::from_json $json	333	=item $ref = cf::decode_json $json
163		334
164	Converts a JSON string into the corresponding perl data structure.	335	Converts a JSON string into the corresponding perl data structure.
165		336
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	337	=item $json = cf::encode_json $ref
174		338
175	Converts a perl data structure into its JSON representation.	339	Converts a perl data structure into its JSON representation.
176		340
177	=cut	341	=cut
178		342
179	sub to_json($) {	343	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		344
184	=item my $guard = cf::guard { BLOCK }	345	sub encode_json($) { $json_coder->encode ($_[0]) }
		346	sub decode_json($) { $json_coder->decode ($_[0]) }
185		347
186	Run the given callback when the guard object gets destroyed (useful for	348	=item cf::post_init { BLOCK }
187	coroutine cancellations).
188		349
189	You can call C<< ->cancel >> on the guard object to stop the block from	350	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
190	being executed.	351	but I<before> the server starts ticking again.
191		352
192	=cut	353	The cdoeblock will have a single boolean argument to indicate whether this
		354	is a reload or not.
193		355
194	sub guard(&) {	356	=cut
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197		357
198	sub cf::guard::cancel {	358	sub post_init(&) {
199	${$_[0]} = sub { };	359	push @POST_INIT, shift;
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}	360	}
205		361
206	=item cf::lock_wait $string	362	=item cf::lock_wait $string
207		363
208	Wait until the given lock is available. See cf::lock_acquire.	364	Wait until the given lock is available. See cf::lock_acquire.
209		365
210	=item my $lock = cf::lock_acquire $string	366	=item my $lock = cf::lock_acquire $string
211		367
212	Wait until the given lock is available and then acquires it and returns	368	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	369	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	370	for example when the coroutine gets canceled), the lock is automatically
215	returned.	371	returned.
216		372
		373	Locks are *not* recursive, locking from the same coro twice results in a
		374	deadlocked coro.
		375
217	Lock names should begin with a unique identifier (for example, cf::map::find	376	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	377	uses map_find and cf::map::load uses map_load).
219		378
220	=cut	379	=item $locked = cf::lock_active $string
221		380
222	our %LOCK;	381	Return true if the lock is currently active, i.e. somebody has locked it.
		382
		383	=cut
		384
		385	our $LOCKS = new Coro::SemaphoreSet;
223		386
224	sub lock_wait($) {	387	sub lock_wait($) {
225	my ($key) = @_;	388	$LOCKS->wait ($_[0]);
226
227	# wait for lock, if any
228	while ($LOCK{$key}) {
229	push @{ $LOCK{$key} }, $Coro::current;
230	Coro::schedule;
231	}
232	}	389	}
233		390
234	sub lock_acquire($) {	391	sub lock_acquire($) {
235	my ($key) = @_;	392	$LOCKS->guard ($_[0])
		393	}
236		394
237	# wait, to be sure we are not locked	395	sub lock_active($) {
238	lock_wait $key;	396	$LOCKS->count ($_[0]) < 1
		397	}
239		398
240	$LOCK{$key} = [];	399	sub freeze_mainloop {
		400	tick_inhibit_inc;
241		401
242	cf::guard {	402	&Guard::guard (\&tick_inhibit_dec);
243	# wake up all waiters, to be on the safe side	403	}
244	$_->ready for @{ delete $LOCK{$key} };	404
		405	=item cf::periodic $interval, $cb
		406
		407	Like EV::periodic, but randomly selects a starting point so that the actions
		408	get spread over time.
		409
		410	=cut
		411
		412	sub periodic($$) {
		413	my ($interval, $cb) = @_;
		414
		415	my $start = rand List::Util::min 180, $interval;
		416
		417	EV::periodic $start, $interval, 0, $cb
		418	}
		419
		420	=item cf::get_slot $time[, $priority[, $name]]
		421
		422	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		423	This call blocks and returns only when you have at least C<$time> seconds
		424	of cpu time till the next tick. The slot is only valid till the next cede.
		425
		426	The optional C<$name> can be used to identify the job to run. It might be
		427	used for statistical purposes and should identify the same time-class.
		428
		429	Useful for short background jobs.
		430
		431	=cut
		432
		433	our @SLOT_QUEUE;
		434	our $SLOT_QUEUE;
		435	our $SLOT_DECAY = 0.9;
		436
		437	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		438	$SLOT_QUEUE = Coro::async {
		439	$Coro::current->desc ("timeslot manager");
		440
		441	my $signal = new Coro::Signal;
		442	my $busy;
		443
		444	while () {
		445	next_job:
		446
		447	my $avail = cf::till_tick;
		448
		449	for (0 .. $#SLOT_QUEUE) {
		450	if ($SLOT_QUEUE[$_][0] <= $avail) {
		451	$busy = 0;
		452	my $job = splice @SLOT_QUEUE, $_, 1, ();
		453	$job->[2]->send;
		454	Coro::cede;
		455	goto next_job;
		456	} else {
		457	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		458	}
		459	}
		460
		461	if (@SLOT_QUEUE) {
		462	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		463	push @cf::WAIT_FOR_TICK, $signal;
		464	$signal->wait;
		465	} else {
		466	$busy = 0;
		467	Coro::schedule;
		468	}
245	}	469	}
		470	};
		471
		472	sub get_slot($;$$) {
		473	return if tick_inhibit || $Coro::current == $Coro::main;
		474
		475	my ($time, $pri, $name) = @_;
		476
		477	$time = clamp $time, 0.01, $TICK * .6;
		478
		479	my $sig = new Coro::Signal;
		480
		481	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		482	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		483	$SLOT_QUEUE->ready;
		484	$sig->wait;
246	}	485	}
247		486
248	=item cf::async { BLOCK }	487	=item cf::async { BLOCK }
249		488
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	489	Currently the same as Coro::async_pool, meaning you cannot use
251	error instead of exiting the server in case of a problem.	490	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		491	thing you are allowed to do is call C<prio> on it.
252		492
253	=cut	493	=cut
254		494
255	sub async(&) {	495	BEGIN { *async = \&Coro::async_pool }
256	my ($cb) = @_;
257
258	Coro::async {
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}
263
264	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;
266
267	my $guard = guard { $TICK_WATCHER->start };
268	$TICK_WATCHER->stop;
269	$guard
270	}
271		496
272	=item cf::sync_job { BLOCK }	497	=item cf::sync_job { BLOCK }
273		498
274	The design of crossfire+ requires that the main coro ($Coro::main) is	499	The design of Deliantra requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	500	is always able to handle events or runnable, as Deliantra is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	501	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		502	acceptable.
277		503
278	If it must be done, put the blocking parts into C<sync_job>. This will run	504	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	505	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	506	server will be frozen during this time, so the block should either finish
281	fast or be very important.	507	fast or be very important.
…		…
284		510
285	sub sync_job(&) {	511	sub sync_job(&) {
286	my ($job) = @_;	512	my ($job) = @_;
287		513
288	if ($Coro::current == $Coro::main) {	514	if ($Coro::current == $Coro::main) {
		515	my $time = AE::time;
		516
289	# this is the main coro, too bad, we have to block	517	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	518	# till the operation succeeds, freezing the server :/
291		519
292	# TODO: use suspend/resume instead	520	LOG llevError, Carp::longmess "sync job";#d#
293	# (but this is cancel-safe)	521
294	my $freeze_guard = freeze_mainloop;	522	my $freeze_guard = freeze_mainloop;
295		523
296	my $busy = 1;	524	my $busy = 1;
297	my @res;	525	my @res;
298		526
299	(Coro::async {	527	(async {
		528	$Coro::current->desc ("sync job coro");
300	@res = eval { $job->() };	529	@res = eval { $job->() };
301	warn $@ if $@;	530	warn $@ if $@;
302	undef $busy;	531	undef $busy;
303	})->prio (Coro::PRIO_MAX);	532	})->prio (Coro::PRIO_MAX);
304		533
305	while ($busy) {	534	while ($busy) {
		535	if (Coro::nready) {
306	Coro::cede_notself;	536	Coro::cede_notself;
307	Event::one_event unless Coro::nready;	537	} else {
		538	EV::loop EV::LOOP_ONESHOT;
308	}	539	}
		540	}
		541
		542	my $time = AE::time - $time;
		543
		544	$TICK_START += $time; # do not account sync jobs to server load
309		545
310	wantarray ? @res : $res[0]	546	wantarray ? @res : $res[0]
311	} else {	547	} else {
312	# we are in another coroutine, how wonderful, everything just works	548	# we are in another coroutine, how wonderful, everything just works
313		549
314	$job->()	550	$job->()
315	}	551	}
316	}	552	}
317		553
318	=item $coro = cf::coro { BLOCK }	554	=item $coro = cf::async_ext { BLOCK }
319		555
320	Creates and returns a new coro. This coro is automcatially being canceled	556	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	557	extension calling this is being unloaded.
322		558
323	=cut	559	=cut
324		560
325	sub coro(&) {	561	sub async_ext(&) {
326	my $cb = shift;	562	my $cb = shift;
327		563
328	my $coro = &cf::async ($cb);	564	my $coro = &Coro::async ($cb);
329		565
330	$coro->on_destroy (sub {	566	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	567	delete $EXT_CORO{$coro+0};
332	});	568	});
333	$EXT_CORO{$coro+0} = $coro;	569	$EXT_CORO{$coro+0} = $coro;
334		570
335	$coro	571	$coro
336	}	572	}
337		573
338	sub write_runtime {	574	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		575
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	576	Executes the given code block with the given arguments in a seperate
342	or return;	577	process, returning the results. Everything must be serialisable with
		578	Coro::Storable. May, of course, block. Note that the executed sub may
		579	never block itself or use any form of event handling.
343		580
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	581	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		582
348	aio_fsync $fh	583	sub fork_call(&@) {
349	and return;	584	my ($cb, @args) = @_;
350		585
351	close $fh	586	# we seemingly have to make a local copy of the whole thing,
352	or return;	587	# otherwise perl prematurely frees the stuff :/
		588	# TODO: investigate and fix (likely this will be rather laborious)
353		589
354	aio_rename "$runtime~", $runtime	590	my @res = Coro::Util::fork_eval {
355	and return;	591	reset_signals;
		592	&$cb
		593	}, @args;
356		594
		595	wantarray ? @res : $res[-1]
		596	}
		597
		598	sub objinfo {
357	1	599	(
		600	"counter value" => cf::object::object_count,
		601	"objects created" => cf::object::create_count,
		602	"objects destroyed" => cf::object::destroy_count,
		603	"freelist size" => cf::object::free_count,
		604	"allocated objects" => cf::object::objects_size,
		605	"active objects" => cf::object::actives_size,
		606	)
		607	}
		608
		609	=item $coin = coin_from_name $name
		610
		611	=cut
		612
		613	our %coin_alias = (
		614	"silver" => "silvercoin",
		615	"silvercoin" => "silvercoin",
		616	"silvercoins" => "silvercoin",
		617	"gold" => "goldcoin",
		618	"goldcoin" => "goldcoin",
		619	"goldcoins" => "goldcoin",
		620	"platinum" => "platinacoin",
		621	"platinumcoin" => "platinacoin",
		622	"platinumcoins" => "platinacoin",
		623	"platina" => "platinacoin",
		624	"platinacoin" => "platinacoin",
		625	"platinacoins" => "platinacoin",
		626	"royalty" => "royalty",
		627	"royalties" => "royalty",
		628	);
		629
		630	sub coin_from_name($) {
		631	$coin_alias{$_[0]}
		632	? cf::arch::find $coin_alias{$_[0]}
		633	: undef
		634	}
		635
		636	=item $value = cf::db_get $family => $key
		637
		638	Returns a single value from the environment database.
		639
		640	=item cf::db_put $family => $key => $value
		641
		642	Stores the given C<$value> in the family. It can currently store binary
		643	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		644
		645	=item $db = cf::db_table "name"
		646
		647	Create and/or open a new database table. The string must not be "db" and must be unique
		648	within each server.
		649
		650	=cut
		651
		652	sub db_table($) {
		653	my ($name) = @_;
		654	my $db = BDB::db_create $DB_ENV;
		655
		656	eval {
		657	$db->set_flags (BDB::CHKSUM);
		658
		659	utf8::encode $name;
		660	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		661	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		662	cf::cleanup "db_open(db): $!" if $!;
		663	};
		664	cf::cleanup "db_open(db): $@" if $@;
		665
		666	$db
		667	}
		668
		669	our $DB;
		670
		671	sub db_init {
		672	cf::sync_job {
		673	$DB ||= db_table "db";
		674	};
		675	}
		676
		677	sub db_get($$) {
		678	my $key = "$_[0]/$_[1]";
		679
		680	cf::sync_job {
		681	BDB::db_get $DB, undef, $key, my $data;
		682
		683	$! ? ()
		684	: $data
		685	}
		686	}
		687
		688	sub db_put($$$) {
		689	BDB::dbreq_pri 4;
		690	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		691	}
		692
		693	=item cf::cache $id => [$paths...], $processversion => $process
		694
		695	Generic caching function that returns the value of the resource $id,
		696	caching and regenerating as required.
		697
		698	This function can block.
		699
		700	=cut
		701
		702	sub cache {
		703	my ($id, $src, $processversion, $process) = @_;
		704
		705	my $meta =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	aio_stat $_
		710	and Carp::croak "$_: $!";
		711
		712	($_, (stat _)[7,9])
		713	} @$src;
		714
		715	my $dbmeta = db_get cache => "$id/meta";
		716	if ($dbmeta ne $meta) {
		717	# changed, we may need to process
		718
		719	my @data;
		720	my $md5;
		721
		722	for (0 .. $#$src) {
		723	0 <= aio_load $src->[$_], $data[$_]
		724	or Carp::croak "$src->[$_]: $!";
		725	}
		726
		727	# if processing is expensive, check
		728	# checksum first
		729	if (1) {
		730	$md5 =
		731	join "\x00",
		732	$processversion,
		733	map {
		734	cf::cede_to_tick;
		735	($src->[$_], Digest::MD5::md5_hex $data[$_])
		736	} 0.. $#$src;
		737
		738
		739	my $dbmd5 = db_get cache => "$id/md5";
		740	if ($dbmd5 eq $md5) {
		741	db_put cache => "$id/meta", $meta;
		742
		743	return db_get cache => "$id/data";
		744	}
		745	}
		746
		747	my $t1 = Time::HiRes::time;
		748	my $data = $process->(\@data);
		749	my $t2 = Time::HiRes::time;
		750
		751	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		752
		753	db_put cache => "$id/data", $data;
		754	db_put cache => "$id/md5" , $md5;
		755	db_put cache => "$id/meta", $meta;
		756
		757	return $data;
		758	}
		759
		760	db_get cache => "$id/data"
		761	}
		762
		763	=item cf::datalog type => key => value, ...
		764
		765	Log a datalog packet of the given type with the given key-value pairs.
		766
		767	=cut
		768
		769	sub datalog($@) {
		770	my ($type, %kv) = @_;
		771	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	772	}
359		773
360	=back	774	=back
361		775
362	=cut	776	=cut
363		777
364	#############################################################################	778	#############################################################################
365		779
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483
484	#############################################################################
485
486	=head2 ATTACHABLE OBJECTS	780	=head2 ATTACHABLE OBJECTS
487		781
488	Many objects in crossfire are so-called attachable objects. That means you can	782	Many objects in deliantra are so-called attachable objects. That means you can
489	attach callbacks/event handlers (a collection of which is called an "attachment")	783	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	784	to it. All such attachable objects support the following methods.
491		785
492	In the following description, CLASS can be any of C<global>, C<object>	786	In the following description, CLASS can be any of C<global>, C<object>
493	C<player>, C<client> or C<map> (i.e. the attachable objects in	787	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	788	Deliantra).
495		789
496	=over 4	790	=over 4
497		791
498	=item $attachable->attach ($attachment, key => $value...)	792	=item $attachable->attach ($attachment, key => $value...)
499		793
…		…
543	=item cf::CLASS::attachment $name, ...	837	=item cf::CLASS::attachment $name, ...
544		838
545	Register an attachment by C<$name> through which attachable objects of the	839	Register an attachment by C<$name> through which attachable objects of the
546	given CLASS can refer to this attachment.	840	given CLASS can refer to this attachment.
547		841
548	Some classes such as crossfire maps and objects can specify attachments	842	Some classes such as deliantra maps and objects can specify attachments
549	that are attached at load/instantiate time, thus the need for a name.	843	that are attached at load/instantiate time, thus the need for a name.
550		844
551	These calls expect any number of the following handler/hook descriptions:	845	These calls expect any number of the following handler/hook descriptions:
552		846
553	=over 4	847	=over 4
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	907	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	908	our @CB_MAP = ();
615		909
616	my %attachment;	910	my %attachment;
617		911
		912	sub cf::attachable::thawer_merge {
		913	# simply override everything except _meta
		914	local $_[0]{_meta};
		915	%{$_[0]} = %{$_[1]};
		916	}
		917
618	sub _attach_cb($$$$) {	918	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	919	my ($registry, $event, $prio, $cb) = @_;
620		920
621	use sort 'stable';	921	use sort 'stable';
622		922
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	956	$registry = $CB_TYPE[$object_type] ||= [];
657		957
658	} elsif ($type eq "subtype") {	958	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	959	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	960	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	961	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		962
663	} elsif ($type eq "package") {	963	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	964	my $pkg = shift @arg;
665		965
666	while (my ($name, $id) = each %cb_id) {	966	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	995	_attach $registry, $klass, @attach;
696	}	996	}
697		997
698	$obj->{$name} = \%arg;	998	$obj->{$name} = \%arg;
699	} else {	999	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	1000	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	1001	}
702		1002
703	$obj->{_attachment}{$name} = undef;	1003	$obj->{_attachment}{$name} = undef;
704	}	1004	}
705		1005
…		…
707	if (ref $_[0]) {	1007	if (ref $_[0]) {
708	_object_attach @_;	1008	_object_attach @_;
709	} else {	1009	} else {
710	_attach shift->_attach_registry, @_;	1010	_attach shift->_attach_registry, @_;
711	}	1011	}
		1012	_recalc_want;
712	};	1013	};
713		1014
714	# all those should be optimised	1015	# all those should be optimised
715	sub cf::attachable::detach {	1016	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	1017	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	1020	delete $obj->{_attachment}{$name};
720	reattach ($obj);	1021	reattach ($obj);
721	} else {	1022	} else {
722	Carp::croak "cannot, currently, detach class attachments";	1023	Carp::croak "cannot, currently, detach class attachments";
723	}	1024	}
		1025	_recalc_want;
724	};	1026	};
725		1027
726	sub cf::attachable::attached {	1028	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	1029	my ($obj, $name) = @_;
728		1030
…		…
743	";	1045	";
744	die if $@;	1046	die if $@;
745	}	1047	}
746		1048
747	our $override;	1049	our $override;
748	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1050	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
749		1051
750	sub override {	1052	sub override {
751	$override = 1;	1053	$override = 1;
752	@invoke_results = ();	1054	@INVOKE_RESULTS = (@_);
753	}	1055	}
754		1056
755	sub do_invoke {	1057	sub do_invoke {
756	my $event = shift;	1058	my $event = shift;
757	my $callbacks = shift;	1059	my $callbacks = shift;
758		1060
759	@invoke_results = ();	1061	@INVOKE_RESULTS = ();
760		1062
761	local $override;	1063	local $override;
762		1064
763	for (@$callbacks) {	1065	for (@$callbacks) {
764	eval { &{$_->[1]} };	1066	eval { &{$_->[1]} };
…		…
773	}	1075	}
774		1076
775	0	1077	0
776	}	1078	}
777		1079
778	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1080	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
779		1081
780	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1082	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
781		1083
782	Generate an object-specific event with the given arguments.	1084	Generate an object-specific event with the given arguments.
783		1085
784	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1086	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
785	removed in future versions), and there is no public API to access override	1087	removed in future versions), and there is no public API to access override
786	results (if you must, access C<@cf::invoke_results> directly).	1088	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		1089
788	=back	1090	=back
789		1091
790	=cut	1092	=cut
791		1093
792	#############################################################################	1094	#############################################################################
793	# object support	1095	# object support
		1096
		1097	sub _object_equal($$);
		1098	sub _object_equal($$) {
		1099	my ($a, $b) = @_;
		1100
		1101	return 0 unless (ref $a) eq (ref $b);
		1102
		1103	if ("HASH" eq ref $a) {
		1104	my @ka = keys %$a;
		1105	my @kb = keys %$b;
		1106
		1107	return 0 if @ka != @kb;
		1108
		1109	for (0 .. $#ka) {
		1110	return 0 unless $ka[$_] eq $kb[$_];
		1111	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1112	}
		1113
		1114	} elsif ("ARRAY" eq ref $a) {
		1115
		1116	return 0 if @$a != @$b;
		1117
		1118	for (0 .. $#$a) {
		1119	return 0 unless _object_equal $a->[$_], $b->[$_];
		1120	}
		1121
		1122	} elsif ($a ne $b) {
		1123	return 0;
		1124	}
		1125
		1126	1
		1127	}
		1128
		1129	our $SLOW_MERGES;#d#
		1130	sub _can_merge {
		1131	my ($ob1, $ob2) = @_;
		1132
		1133	++$SLOW_MERGES;#d#
		1134
		1135	# we do the slow way here
		1136	return _object_equal $ob1, $ob2
		1137	}
794		1138
795	sub reattach {	1139	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	1140	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	1141	my ($obj) = @_;
		1142
		1143	# no longer needed after getting rid of delete_package?
		1144	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		1145
799	my $registry = $obj->registry;	1146	my $registry = $obj->registry;
800		1147
801	@$registry = ();	1148	@$registry = ();
802		1149
…		…
817	cf::attachable->attach (	1164	cf::attachable->attach (
818	prio => -1000000,	1165	prio => -1000000,
819	on_instantiate => sub {	1166	on_instantiate => sub {
820	my ($obj, $data) = @_;	1167	my ($obj, $data) = @_;
821		1168
822	$data = from_json $data;	1169	$data = decode_json $data;
823		1170
824	for (@$data) {	1171	for (@$data) {
825	my ($name, $args) = @$_;	1172	my ($name, $args) = @$_;
826		1173
827	$obj->attach ($name, %{$args || {} });	1174	$obj->attach ($name, %{$args || {} });
…		…
843	sub object_freezer_save {	1190	sub object_freezer_save {
844	my ($filename, $rdata, $objs) = @_;	1191	my ($filename, $rdata, $objs) = @_;
845		1192
846	sync_job {	1193	sync_job {
847	if (length $$rdata) {	1194	if (length $$rdata) {
		1195	utf8::decode (my $decname = $filename);
848	warn sprintf "saving %s (%d,%d)\n",	1196	warn sprintf "saving %s (%d,%d)\n",
849	$filename, length $$rdata, scalar @$objs;	1197	$decname, length $$rdata, scalar @$objs;
850		1198
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1199	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1200	aio_chmod $fh, SAVE_MODE;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1201	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1202	if ($cf::USE_FSYNC) {
		1203	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
854	aio_fsync $fh;	1204	aio_fsync $fh;
		1205	}
855	close $fh;	1206	aio_close $fh;
856		1207
857	if (@$objs) {	1208	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1209	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	1210	aio_chmod $fh, SAVE_MODE;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1211	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1212	aio_write $fh, 0, (length $data), $data, 0;
		1213	if ($cf::USE_FSYNC) {
		1214	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
862	aio_fsync $fh;	1215	aio_fsync $fh;
		1216	}
863	close $fh;	1217	aio_close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1218	aio_rename "$filename.pst~", "$filename.pst";
865	}	1219	}
866	} else {	1220	} else {
867	aio_unlink "$filename.pst";	1221	aio_unlink "$filename.pst";
868	}	1222	}
869		1223
870	aio_rename "$filename~", $filename;	1224	aio_rename "$filename~", $filename;
		1225
		1226	$filename =~ s%/[^/]+$%%;
		1227	aio_pathsync $filename if $cf::USE_FSYNC;
871	} else {	1228	} else {
872	warn "FATAL: $filename~: $!\n";	1229	warn "unable to save objects: $filename~: $!\n";
873	}	1230	}
874	} else {	1231	} else {
875	aio_unlink $filename;	1232	aio_unlink $filename;
876	aio_unlink "$filename.pst";	1233	aio_unlink "$filename.pst";
877	}	1234	}
878	}	1235	};
879	}	1236	}
880		1237
881	sub object_freezer_as_string {	1238	sub object_freezer_as_string {
882	my ($rdata, $objs) = @_;	1239	my ($rdata, $objs) = @_;
883		1240
…		…
895	or return;	1252	or return;
896		1253
897	unless (aio_stat "$filename.pst") {	1254	unless (aio_stat "$filename.pst") {
898	(aio_load "$filename.pst", $av) >= 0	1255	(aio_load "$filename.pst", $av) >= 0
899	or return;	1256	or return;
		1257
900	$av = eval { (Storable::thaw $av)->{objs} };	1258	my $st = eval { Coro::Storable::thaw $av };
		1259	$av = $st->{objs};
901	}	1260	}
902		1261
		1262	utf8::decode (my $decname = $filename);
903	warn sprintf "loading %s (%d)\n",	1263	warn sprintf "loading %s (%d,%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1264	$decname, length $data, scalar @{$av || []};
		1265
905	return ($data, $av);	1266	($data, $av)
906	}	1267	}
		1268
		1269	=head2 COMMAND CALLBACKS
		1270
		1271	=over 4
		1272
		1273	=cut
907		1274
908	#############################################################################	1275	#############################################################################
909	# command handling &c	1276	# command handling &c
910		1277
911	=item cf::register_command $name => \&callback($ob,$args);	1278	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1291	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1292	}
926		1293
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1294	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1295
929	Register a callbackf ro execution when the client sends an extcmd packet.	1296	Register a callback for execution when the client sends an (synchronous)
		1297	extcmd packet. Ext commands will be processed in the order they are
		1298	received by the server, like other user commands. The first argument is
		1299	the logged-in player. Ext commands can only be processed after a player
		1300	has logged in successfully.
930		1301
931	If the callback returns something, it is sent back as if reply was being	1302	If the callback returns something, it is sent back as if reply was being
932	called.	1303	called.
933		1304
		1305	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1306
		1307	Register a callback for execution when the client sends an (asynchronous)
		1308	exticmd packet. Exti commands are processed by the server as soon as they
		1309	are received, i.e. out of order w.r.t. other commands. The first argument
		1310	is a client socket. Exti commands can be received anytime, even before
		1311	log-in.
		1312
		1313	If the callback returns something, it is sent back as if reply was being
		1314	called.
		1315
934	=cut	1316	=cut
935		1317
936	sub register_extcmd {	1318	sub register_extcmd {
937	my ($name, $cb) = @_;	1319	my ($name, $cb) = @_;
938		1320
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1321	$EXTCMD{$name} = $cb;
943	}	1322	}
		1323
		1324	sub register_exticmd {
		1325	my ($name, $cb) = @_;
		1326
		1327	$EXTICMD{$name} = $cb;
		1328	}
		1329
		1330	use File::Glob ();
944		1331
945	cf::player->attach (	1332	cf::player->attach (
946	on_command => sub {	1333	on_unknown_command => sub {
947	my ($pl, $name, $params) = @_;	1334	my ($pl, $name, $params) = @_;
948		1335
949	my $cb = $COMMAND{$name}	1336	my $cb = $COMMAND{$name}
950	or return;	1337	or return;
951		1338
…		…
956	cf::override;	1343	cf::override;
957	},	1344	},
958	on_extcmd => sub {	1345	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1346	my ($pl, $buf) = @_;
960		1347
961	my $msg = eval { from_json $buf };	1348	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1349
963	if (ref $msg) {	1350	if (ref $msg) {
		1351	my ($type, $reply, @payload) =
		1352	"ARRAY" eq ref $msg
		1353	? @$msg
		1354	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1355
		1356	my @reply;
		1357
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1358	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1359	@reply = $cb->($pl, @payload);
966	$pl->ext_reply ($msg->{msgid}, %reply);
967	}
968	}	1360	}
		1361
		1362	$pl->ext_reply ($reply, @reply)
		1363	if $reply;
		1364
969	} else {	1365	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1366	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1367	}
972		1368
973	cf::override;	1369	cf::override;
974	},	1370	},
975	);	1371	);
976		1372
977	sub register {	1373	# "readahead" all extensions
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1374	sub cache_extensions {
984	my ($path) = @_;	1375	my $grp = IO::AIO::aio_group;
985		1376
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1377	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
987	my $base = $1;	1378	for (grep /\.ext$/, @{$_[0]}) {
988	my $pkg = $1;	1379	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991
992	warn "loading '$path' into '$pkg'\n";
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }
1026
1027	# remove commands
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}	1380	}
1036	}	1381	};
1037		1382
1038	# remove extcmds	1383	$grp
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}	1384	}
1052		1385
1053	sub load_extensions {	1386	sub load_extensions {
		1387	cf::sync_job {
		1388	my %todo;
		1389
1054	for my $ext (<$LIBDIR/*.ext>) {	1390	for my $path (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;	1391	next unless -r $path;
1056	eval {	1392
1057	load_extension $ext;	1393	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1394	my $base = $1;
		1395	my $pkg = $1;
		1396	$pkg =~ s/[^[:word:]]/_/g;
		1397	$pkg = "ext::$pkg";
		1398
		1399	open my $fh, "<:utf8", $path
		1400	or die "$path: $!";
		1401
		1402	my $source = do { local $/; <$fh> };
		1403
		1404	my %ext = (
		1405	path => $path,
		1406	base => $base,
		1407	pkg => $pkg,
		1408	);
		1409
		1410	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1411	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1412
		1413	$ext{source} =
		1414	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1415	. "#line 1 \"$path\"\n{\n"
		1416	. $source
		1417	. "\n};\n1";
		1418
		1419	$todo{$base} = \%ext;
		1420	}
		1421
		1422	my $pass = 0;
		1423	my %done;
		1424	while (%todo) {
		1425	my $progress;
		1426
		1427	++$pass;
		1428
		1429	ext:
		1430	while (my ($k, $v) = each %todo) {
		1431	for (split /,\s*/, $v->{meta}{depends}) {
		1432	next ext
		1433	unless exists $done{$_};
		1434	}
		1435
		1436	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1437
		1438	my $active = eval $v->{source};
		1439
		1440	if (length $@) {
		1441	warn "$v->{path}: $@\n";
		1442
		1443	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1444	if exists $v->{meta}{mandatory};
		1445
		1446	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1447	delete $todo{$k};
		1448	} else {
		1449	$done{$k} = delete $todo{$k};
		1450	push @EXTS, $v->{pkg};
		1451	$progress = 1;
		1452
		1453	warn "$v->{base}: extension inactive.\n"
		1454	unless $active;
		1455	}
1058	1	1456	}
1059	} or warn "$ext not loaded: $@";	1457
		1458	unless ($progress) {
		1459	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1460
		1461	while (my ($k, $v) = each %todo) {
		1462	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1463	if exists $v->{meta}{mandatory};
		1464	}
		1465	}
		1466	}
1060	}	1467	};
1061	}	1468	}
1062		1469
1063	#############################################################################	1470	#############################################################################
1064	# load/save/clean perl data associated with a map
1065		1471
1066	*cf::mapsupport::on_clean = sub {	1472	=back
		1473
		1474	=head2 CORE EXTENSIONS
		1475
		1476	Functions and methods that extend core deliantra objects.
		1477
		1478	=cut
		1479
		1480	package cf::player;
		1481
		1482	use Coro::AIO;
		1483
		1484	=head3 cf::player
		1485
		1486	=over 4
		1487
		1488	=item cf::player::num_playing
		1489
		1490	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1491
		1492	=cut
		1493
		1494	sub num_playing {
		1495	scalar grep
		1496	$_->ob->map
		1497	&& !$_->hidden
		1498	&& !$_->ob->flag (cf::FLAG_WIZ),
		1499	cf::player::list
		1500	}
		1501
		1502	=item cf::player::find $login
		1503
		1504	Returns the given player object, loading it if necessary (might block).
		1505
		1506	=cut
		1507
		1508	sub playerdir($) {
		1509	"$PLAYERDIR/"
		1510	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1511	}
		1512
		1513	sub path($) {
		1514	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1515
		1516	(playerdir $login) . "/playerdata"
		1517	}
		1518
		1519	sub find_active($) {
		1520	$cf::PLAYER{$_[0]}
		1521	and $cf::PLAYER{$_[0]}->active
		1522	and $cf::PLAYER{$_[0]}
		1523	}
		1524
		1525	sub exists($) {
1067	my ($map) = @_;	1526	my ($login) = @_;
1068		1527
1069	my $path = $map->tmpname;	1528	$cf::PLAYER{$login}
1070	defined $path or return;	1529	or !aio_stat path $login
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}	1530	}
1083		1531
1084	# TODO: compatibility cruft, remove when no longer needed	1532	sub find($) {
		1533	return $cf::PLAYER{$_[0]} || do {
		1534	my $login = $_[0];
		1535
		1536	my $guard = cf::lock_acquire "user_find:$login";
		1537
		1538	$cf::PLAYER{$_[0]} || do {
		1539	# rename old playerfiles to new ones
		1540	#TODO: remove when no longer required
		1541	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1542	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1543	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1544	aio_unlink +(playerdir $login) . "/$login.pl";
		1545
		1546	my $f = new_from_file cf::object::thawer path $login
		1547	or return;
		1548
		1549	my $pl = cf::player::load_pl $f
		1550	or return;
		1551
		1552	local $cf::PLAYER_LOADING{$login} = $pl;
		1553	$f->resolve_delayed_derefs;
		1554	$cf::PLAYER{$login} = $pl
		1555	}
		1556	}
		1557	}
		1558
1085	cf::player->attach (	1559	cf::player->attach (
1086	on_load => sub {	1560	on_load => sub {
1087	my ($pl, $path) = @_;	1561	my ($pl, $path) = @_;
1088		1562
1089	for my $o (all_objects $pl->ob) {	1563	# restore slots saved in save, below
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1564	my $slots = delete $pl->{_slots};
1091	$o->set_ob_key_value ("_perl_data");
1092		1565
1093	%$o = %{ Storable::thaw pack "H*", $value };	1566	$pl->ob->current_weapon ($slots->[0]);
1094	}	1567	$pl->combat_ob ($slots->[1]);
1095	}	1568	$pl->ranged_ob ($slots->[2]);
1096	},	1569	},
1097	);	1570	);
1098		1571
1099	#############################################################################	1572	sub save($) {
		1573	my ($pl) = @_;
1100		1574
1101	=head2 CORE EXTENSIONS	1575	return if $pl->{deny_save};
1102		1576
1103	Functions and methods that extend core crossfire objects.	1577	my $path = path $pl;
		1578	my $guard = cf::lock_acquire "user_save:$path";
1104		1579
1105	=head3 cf::player	1580	return if $pl->{deny_save};
		1581
		1582	aio_mkdir playerdir $pl, 0770;
		1583	$pl->{last_save} = $cf::RUNTIME;
		1584
		1585	cf::get_slot 0.01;
		1586
		1587	# save slots, to be restored later
		1588	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1589
		1590	$pl->save_pl ($path);
		1591	cf::cede_to_tick;
		1592	}
		1593
		1594	sub new($) {
		1595	my ($login) = @_;
		1596
		1597	my $self = create;
		1598
		1599	$self->ob->name ($login);
		1600	$self->{deny_save} = 1;
		1601
		1602	$cf::PLAYER{$login} = $self;
		1603
		1604	$self
		1605	}
		1606
		1607	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1608
		1609	=cut
		1610
		1611	sub send_msg {
		1612	my $ns = shift->ns
		1613	or return;
		1614	$ns->send_msg (@_);
		1615	}
		1616
		1617	=item $pl->quit_character
		1618
		1619	Nukes the player without looking back. If logged in, the connection will
		1620	be destroyed. May block for a long time.
		1621
		1622	=cut
		1623
		1624	sub quit_character {
		1625	my ($pl) = @_;
		1626
		1627	my $name = $pl->ob->name;
		1628
		1629	$pl->{deny_save} = 1;
		1630	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1631
		1632	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1633	$pl->deactivate;
		1634	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1635	$pl->ob->check_score;
		1636	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1637	$pl->ns->destroy if $pl->ns;
		1638
		1639	my $path = playerdir $pl;
		1640	my $temp = "$path~$cf::RUNTIME~deleting~";
		1641	aio_rename $path, $temp;
		1642	delete $cf::PLAYER{$pl->ob->name};
		1643	$pl->destroy;
		1644
		1645	my $prefix = qr<^~\Q$name\E/>;
		1646
		1647	# nuke player maps
		1648	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1649
		1650	IO::AIO::aio_rmtree $temp;
		1651	}
		1652
		1653	=item $pl->kick
		1654
		1655	Kicks a player out of the game. This destroys the connection.
		1656
		1657	=cut
		1658
		1659	sub kick {
		1660	my ($pl, $kicker) = @_;
		1661
		1662	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1663	$pl->killer ("kicked");
		1664	$pl->ns->destroy;
		1665	}
		1666
		1667	=item cf::player::list_logins
		1668
		1669	Returns am arrayref of all valid playernames in the system, can take a
		1670	while and may block, so not sync_job-capable, ever.
		1671
		1672	=cut
		1673
		1674	sub list_logins {
		1675	my $dirs = aio_readdir $PLAYERDIR
		1676	or return [];
		1677
		1678	my @logins;
		1679
		1680	for my $login (@$dirs) {
		1681	my $path = path $login;
		1682
		1683	# a .pst is a dead give-away for a valid player
		1684	# if no pst file found, open and chekc for blocked users
		1685	if (aio_stat "$path.pst") {
		1686	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1687	aio_read $fh, 0, 512, my $buf, 0 or next;
		1688	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1689	}
		1690
		1691	utf8::decode $login;
		1692	push @logins, $login;
		1693	}
		1694
		1695	\@logins
		1696	}
		1697
		1698	=item $player->maps
		1699
		1700	Returns an arrayref of map paths that are private for this
		1701	player. May block.
		1702
		1703	=cut
		1704
		1705	sub maps($) {
		1706	my ($pl) = @_;
		1707
		1708	$pl = ref $pl ? $pl->ob->name : $pl;
		1709
		1710	my $files = aio_readdir playerdir $pl
		1711	or return;
		1712
		1713	my @paths;
		1714
		1715	for (@$files) {
		1716	utf8::decode $_;
		1717	next if /\.(?:pl|pst)$/;
		1718	next unless /^$PATH_SEP/o;
		1719
		1720	push @paths, cf::map::normalise "~$pl/$_";
		1721	}
		1722
		1723	\@paths
		1724	}
		1725
		1726	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1727
		1728	Expand deliantra pod fragments into protocol xml.
		1729
		1730	=item $player->ext_reply ($msgid, @msg)
		1731
		1732	Sends an ext reply to the player.
		1733
		1734	=cut
		1735
		1736	sub ext_reply($$@) {
		1737	my ($self, $id, @msg) = @_;
		1738
		1739	$self->ns->ext_reply ($id, @msg)
		1740	}
		1741
		1742	=item $player->ext_msg ($type, @msg)
		1743
		1744	Sends an ext event to the client.
		1745
		1746	=cut
		1747
		1748	sub ext_msg($$@) {
		1749	my ($self, $type, @msg) = @_;
		1750
		1751	$self->ns->ext_msg ($type, @msg);
		1752	}
		1753
		1754	=head3 cf::region
1106		1755
1107	=over 4	1756	=over 4
1108		1757
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut	1758	=cut
1114		1759
1115	sub cf::player::exists($) {	1760	package cf::region;
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119		1761
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)	1762	=item cf::region::find_by_path $path
1121		1763
1122	Sends an ext reply to the player.	1764	Tries to decuce the likely region for a map knowing only its path.
1123		1765
1124	=cut	1766	=cut
1125		1767
1126	sub cf::player::ext_reply($$$%) {	1768	sub find_by_path($) {
1127	my ($self, $id, %msg) = @_;	1769	my ($path) = @_;
1128		1770
1129	$msg{msgid} = $id;	1771	my ($match, $specificity);
1130		1772
1131	$self->send ("ext " . to_json \%msg);	1773	for my $region (list) {
		1774	if ($region->{match} && $path =~ $region->{match}) {
		1775	($match, $specificity) = ($region, $region->specificity)
		1776	if $region->specificity > $specificity;
		1777	}
		1778	}
		1779
		1780	$match
1132	}	1781	}
1133		1782
1134	=back	1783	=back
1135
1136		1784
1137	=head3 cf::map	1785	=head3 cf::map
1138		1786
1139	=over 4	1787	=over 4
1140		1788
…		…
1143	package cf::map;	1791	package cf::map;
1144		1792
1145	use Fcntl;	1793	use Fcntl;
1146	use Coro::AIO;	1794	use Coro::AIO;
1147		1795
		1796	use overload
		1797	'""' => \&as_string,
		1798	fallback => 1;
		1799
1148	our $MAX_RESET = 3600;	1800	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1801	our $DEFAULT_RESET = 3000;
1150		1802
1151	sub generate_random_map {	1803	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1804	my ($self, $rmp) = @_;
		1805
		1806	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1153		1807
1154	# mit "rum" bekleckern, nicht	1808	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1809	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1810	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1811	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1812	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1813	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1814	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1815	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1816	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1817	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1818	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1819	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1820	(cf::region::find $rmp->{region}), $rmp->{custom}
		1821	)
1168	}	1822	}
1169		1823
1170	# and all this just because we cannot iterate over	1824	=item cf::map->register ($regex, $prio)
1171	# all maps in C++...
1172	sub change_all_map_light {
1173	my ($change) = @_;
1174		1825
1175	$_->change_map_light ($change)	1826	Register a handler for the map path matching the given regex at the
1176	for grep $_->outdoor, values %cf::MAP;	1827	givne priority (higher is better, built-in handlers have priority 0, the
1177	}	1828	default).
1178		1829
1179	sub try_load_header($) {	1830	=cut
		1831
		1832	sub register {
		1833	my (undef, $regex, $prio) = @_;
		1834	my $pkg = caller;
		1835
		1836	no strict;
		1837	push @{"$pkg\::ISA"}, __PACKAGE__;
		1838
		1839	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1840	}
		1841
		1842	# also paths starting with '/'
		1843	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1844
		1845	sub thawer_merge {
		1846	my ($self, $merge) = @_;
		1847
		1848	# we have to keep some variables in memory intact
		1849	local $self->{path};
		1850	local $self->{load_path};
		1851
		1852	$self->SUPER::thawer_merge ($merge);
		1853	}
		1854
		1855	sub normalise {
1180	my ($path) = @_;	1856	my ($path, $base) = @_;
		1857
		1858	$path = "$path"; # make sure its a string
		1859
		1860	$path =~ s/\.map$//;
		1861
		1862	# map plan:
		1863	#
		1864	# /! non-realised random map exit (special hack!)
		1865	# {... are special paths that are not being touched
		1866	# ?xxx/... are special absolute paths
		1867	# ?random/... random maps
		1868	# /... normal maps
		1869	# ~user/... per-player map of a specific user
		1870
		1871	$path =~ s/$PATH_SEP/\//go;
		1872
		1873	# treat it as relative path if it starts with
		1874	# something that looks reasonable
		1875	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1876	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1877
		1878	$base =~ s{[^/]+/?$}{};
		1879	$path = "$base/$path";
		1880	}
		1881
		1882	for ($path) {
		1883	redo if s{//}{/};
		1884	redo if s{/\.?/}{/};
		1885	redo if s{/[^/]+/\.\./}{/};
		1886	}
		1887
		1888	$path
		1889	}
		1890
		1891	sub new_from_path {
		1892	my (undef, $path, $base) = @_;
		1893
		1894	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1895
		1896	$path = normalise $path, $base;
		1897
		1898	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1899	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1900	my $self = bless cf::map::new, $pkg;
		1901	$self->{path} = $path; $self->path ($path);
		1902	$self->init; # pass $1 etc.
		1903	return $self;
		1904	}
		1905	}
		1906
		1907	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1908	()
		1909	}
		1910
		1911	sub init {
		1912	my ($self) = @_;
		1913
		1914	$self
		1915	}
		1916
		1917	sub as_string {
		1918	my ($self) = @_;
		1919
		1920	"$self->{path}"
		1921	}
		1922
		1923	# the displayed name, this is a one way mapping
		1924	sub visible_name {
		1925	&as_string
		1926	}
		1927
		1928	# the original (read-only) location
		1929	sub load_path {
		1930	my ($self) = @_;
		1931
		1932	"$MAPDIR/$self->{path}.map"
		1933	}
		1934
		1935	# the temporary/swap location
		1936	sub save_path {
		1937	my ($self) = @_;
		1938
		1939	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1940	"$TMPDIR/$path.map"
		1941	}
		1942
		1943	# the unique path, undef == no special unique path
		1944	sub uniq_path {
		1945	my ($self) = @_;
		1946
		1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1948	"$UNIQUEDIR/$path"
		1949	}
		1950
		1951	sub decay_objects {
		1952	my ($self) = @_;
		1953
		1954	return if $self->{deny_reset};
		1955
		1956	$self->do_decay_objects;
		1957	}
		1958
		1959	sub unlink_save {
		1960	my ($self) = @_;
		1961
		1962	utf8::encode (my $save = $self->save_path);
		1963	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1964	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1965	}
		1966
		1967	sub load_header_from($) {
		1968	my ($self, $path) = @_;
1181		1969
1182	utf8::encode $path;	1970	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1971	my $f = new_from_file cf::object::thawer $path
1184	or return;	1972	or return;
1185		1973
1186	my $map = cf::map::new	1974	$self->_load_header ($f)
1187	or return;	1975	or return;
1188		1976
1189	$map->load_header ($path)	1977	local $MAP_LOADING{$self->{path}} = $self;
		1978	$f->resolve_delayed_derefs;
		1979
		1980	$self->{load_path} = $path;
		1981
		1982	1
		1983	}
		1984
		1985	sub load_header_orig {
		1986	my ($self) = @_;
		1987
		1988	$self->load_header_from ($self->load_path)
		1989	}
		1990
		1991	sub load_header_temp {
		1992	my ($self) = @_;
		1993
		1994	$self->load_header_from ($self->save_path)
		1995	}
		1996
		1997	sub prepare_temp {
		1998	my ($self) = @_;
		1999
		2000	$self->last_access ((delete $self->{last_access})
		2001	|| $cf::RUNTIME); #d#
		2002	# safety
		2003	$self->{instantiate_time} = $cf::RUNTIME
		2004	if $self->{instantiate_time} > $cf::RUNTIME;
		2005	}
		2006
		2007	sub prepare_orig {
		2008	my ($self) = @_;
		2009
		2010	$self->{load_original} = 1;
		2011	$self->{instantiate_time} = $cf::RUNTIME;
		2012	$self->last_access ($cf::RUNTIME);
		2013	$self->instantiate;
		2014	}
		2015
		2016	sub load_header {
		2017	my ($self) = @_;
		2018
		2019	if ($self->load_header_temp) {
		2020	$self->prepare_temp;
		2021	} else {
		2022	$self->load_header_orig
1190	or return;	2023	or return;
		2024	$self->prepare_orig;
		2025	}
1191		2026
1192	$map->{load_path} = $path;	2027	$self->{deny_reset} = 1
		2028	if $self->no_reset;
1193		2029
1194	$map	2030	$self->default_region (cf::region::find_by_path $self->{path})
		2031	unless $self->default_region;
		2032
		2033	1
1195	}	2034	}
1196		2035
1197	sub find;	2036	sub find;
1198	sub find {	2037	sub find {
1199	my ($path, $origin) = @_;	2038	my ($path, $origin) = @_;
1200		2039
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	2040	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		2041
1206	cf::lock_wait "map_find:$key";	2042	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1207
1208	$cf::MAP{$key} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	2043	my $guard2 = cf::lock_acquire "map_find:$path";
1210		2044
1211	# do it the slow way	2045	$cf::MAP{$path} || do {
1212	my $map = try_load_header $path->save_path;	2046	my $map = new_from_path cf::map $path
1213
1214	Coro::cede;
1215
1216	if ($map) {
1217	$map->last_access ((delete $map->{last_access})
1218	|| $cf::RUNTIME); #d#
1219	# safety
1220	$map->{instantiate_time} = $cf::RUNTIME
1221	if $map->{instantiate_time} > $cf::RUNTIME;
1222	} else {
1223	if (my $rmp = $path->random_map_params) {
1224	$map = generate_random_map $key, $rmp;
1225	} else {
1226	$map = try_load_header $path->load_path;
1227	}
1228
1229	$map or return;	2047	or return;
1230		2048
1231	$map->{load_original} = 1;
1232	$map->{instantiate_time} = $cf::RUNTIME;
1233	$map->last_access ($cf::RUNTIME);
1234	$map->instantiate;
1235
1236	# per-player maps become, after loading, normal maps
1237	$map->per_player (0) if $path->{user_rel};
1238	}
1239
1240	$map->path ($key);
1241	$map->{path} = $path;
1242	$map->{last_save} = $cf::RUNTIME;	2049	$map->{last_save} = $cf::RUNTIME;
1243		2050
1244	Coro::cede;	2051	$map->load_header
		2052	or return;
1245		2053
1246	if ($map->should_reset) {	2054	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2055	# doing this can freeze the server in a sync job, obviously
		2056	#$cf::WAIT_FOR_TICK->wait;
		2057	undef $guard2;
		2058	undef $guard1;
1247	$map->reset;	2059	$map->reset;
1248	undef $guard;
1249	$map = find $path	2060	return find $path;
1250	or return;
1251	}	2061	}
1252		2062
1253	$cf::MAP{$key} = $map	2063	$cf::MAP{$path} = $map
1254	}	2064	}
1255	}	2065	}
		2066
		2067	sub pre_load { }
		2068	#sub post_load { } # XS
1256		2069
1257	sub load {	2070	sub load {
1258	my ($self) = @_;	2071	my ($self) = @_;
1259		2072
		2073	local $self->{deny_reset} = 1; # loading can take a long time
		2074
1260	my $path = $self->{path};	2075	my $path = $self->{path};
		2076
		2077	{
1261	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2078	my $guard = cf::lock_acquire "map_data:$path";
1262		2079
		2080	return unless $self->valid;
1263	return if $self->in_memory != cf::MAP_SWAPPED;	2081	return unless $self->in_memory == cf::MAP_SWAPPED;
1264		2082
1265	$self->in_memory (cf::MAP_LOADING);	2083	$self->in_memory (cf::MAP_LOADING);
1266		2084
1267	$self->alloc;	2085	$self->alloc;
1268	$self->load_objects ($self->{load_path}, 1)	2086
		2087	$self->pre_load;
		2088	cf::cede_to_tick;
		2089
		2090	my $f = new_from_file cf::object::thawer $self->{load_path};
		2091	$f->skip_block;
		2092	$self->_load_objects ($f)
1269	or return;	2093	or return;
1270		2094
1271	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2095	$self->post_load_original
1272	if delete $self->{load_original};	2096	if delete $self->{load_original};
1273		2097
1274	if (my $uniq = $path->uniq_path) {	2098	if (my $uniq = $self->uniq_path) {
1275	utf8::encode $uniq;	2099	utf8::encode $uniq;
1276	if (aio_open $uniq, O_RDONLY, 0) {	2100	unless (aio_stat $uniq) {
		2101	if (my $f = new_from_file cf::object::thawer $uniq) {
1277	$self->clear_unique_items;	2102	$self->clear_unique_items;
1278	$self->load_objects ($uniq, 0);	2103	$self->_load_objects ($f);
		2104	$f->resolve_delayed_derefs;
		2105	}
1279	}	2106	}
1280	}	2107	}
1281		2108
1282	Coro::cede;	2109	$f->resolve_delayed_derefs;
1283		2110
		2111	cf::cede_to_tick;
1284	# now do the right thing for maps	2112	# now do the right thing for maps
1285	$self->link_multipart_objects;	2113	$self->link_multipart_objects;
1286
1287	if ($self->{path}->is_style_map) {
1288	$self->{deny_save} = 1;
1289	$self->{deny_reset} = 1;
1290	} else {
1291	$self->fix_auto_apply;
1292	$self->decay_objects;
1293	$self->update_buttons;
1294	$self->set_darkness_map;
1295	$self->difficulty ($self->estimate_difficulty)	2114	$self->difficulty ($self->estimate_difficulty)
1296	unless $self->difficulty;	2115	unless $self->difficulty;
		2116	cf::cede_to_tick;
		2117
		2118	unless ($self->{deny_activate}) {
		2119	$self->decay_objects;
		2120	$self->fix_auto_apply;
		2121	$self->update_buttons;
		2122	cf::cede_to_tick;
1297	$self->activate;	2123	$self->activate;
1298	}	2124	}
1299		2125
1300	Coro::cede;	2126	$self->{last_save} = $cf::RUNTIME;
		2127	$self->last_access ($cf::RUNTIME);
1301		2128
1302	$self->in_memory (cf::MAP_IN_MEMORY);	2129	$self->in_memory (cf::MAP_ACTIVE);
		2130	}
		2131
		2132	$self->post_load;
		2133	}
		2134
		2135	# customize the map for a given player, i.e.
		2136	# return the _real_ map. used by e.g. per-player
		2137	# maps to change the path to ~playername/mappath
		2138	sub customise_for {
		2139	my ($self, $ob) = @_;
		2140
		2141	return find "~" . $ob->name . "/" . $self->{path}
		2142	if $self->per_player;
		2143
		2144	# return find "?party/" . $ob->name . "/" . $self->{path}
		2145	# if $self->per_party;
		2146
		2147	$self
		2148	}
		2149
		2150	# find and load all maps in the 3x3 area around a map
		2151	sub load_neighbours {
		2152	my ($map) = @_;
		2153
		2154	my @neigh; # diagonal neighbours
		2155
		2156	for (0 .. 3) {
		2157	my $neigh = $map->tile_path ($_)
		2158	or next;
		2159	$neigh = find $neigh, $map
		2160	or next;
		2161	$neigh->load;
		2162
		2163	push @neigh,
		2164	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2165	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2166	}
		2167
		2168	for (grep defined $_->[0], @neigh) {
		2169	my ($path, $origin) = @$_;
		2170	my $neigh = find $path, $origin
		2171	or next;
		2172	$neigh->load;
		2173	}
1303	}	2174	}
1304		2175
1305	sub find_sync {	2176	sub find_sync {
1306	my ($path, $origin) = @_;	2177	my ($path, $origin) = @_;
1307		2178
1308	cf::sync_job { cf::map::find $path, $origin }	2179	cf::sync_job { find $path, $origin }
1309	}	2180	}
1310		2181
1311	sub do_load_sync {	2182	sub do_load_sync {
1312	my ($map) = @_;	2183	my ($map) = @_;
1313		2184
		2185	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2186	if $Coro::current == $Coro::main;
		2187
1314	cf::sync_job { $map->load };	2188	cf::sync_job { $map->load };
		2189	}
		2190
		2191	our %MAP_PREFETCH;
		2192	our $MAP_PREFETCHER = undef;
		2193
		2194	sub find_async {
		2195	my ($path, $origin, $load) = @_;
		2196
		2197	$path = normalise $path, $origin && $origin->{path};
		2198
		2199	if (my $map = $cf::MAP{$path}) {
		2200	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2201	}
		2202
		2203	$MAP_PREFETCH{$path} |= $load;
		2204
		2205	$MAP_PREFETCHER ||= cf::async {
		2206	$Coro::current->{desc} = "map prefetcher";
		2207
		2208	while (%MAP_PREFETCH) {
		2209	while (my ($k, $v) = each %MAP_PREFETCH) {
		2210	if (my $map = find $k) {
		2211	$map->load if $v;
		2212	}
		2213
		2214	delete $MAP_PREFETCH{$k};
		2215	}
		2216	}
		2217	undef $MAP_PREFETCHER;
		2218	};
		2219	$MAP_PREFETCHER->prio (6);
		2220
		2221	()
		2222	}
		2223
		2224	# common code, used by both ->save and ->swapout
		2225	sub _save {
		2226	my ($self) = @_;
		2227
		2228	$self->{last_save} = $cf::RUNTIME;
		2229
		2230	return unless $self->dirty;
		2231
		2232	my $save = $self->save_path; utf8::encode $save;
		2233	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2234
		2235	$self->{load_path} = $save;
		2236
		2237	return if $self->{deny_save};
		2238
		2239	local $self->{last_access} = $self->last_access;#d#
		2240
		2241	cf::async {
		2242	$Coro::current->{desc} = "map player save";
		2243	$_->contr->save for $self->players;
		2244	};
		2245
		2246	cf::get_slot 0.02;
		2247
		2248	if ($uniq) {
		2249	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2250	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2251	} else {
		2252	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2253	}
1315	}	2254	}
1316		2255
1317	sub save {	2256	sub save {
1318	my ($self) = @_;	2257	my ($self) = @_;
1319		2258
1320	$self->{last_save} = $cf::RUNTIME;	2259	my $lock = cf::lock_acquire "map_data:$self->{path}";
1321		2260
1322	return unless $self->dirty;	2261	$self->_save;
1323
1324	my $save = $self->{path}->save_path; utf8::encode $save;
1325	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1326
1327	$self->{load_path} = $save;
1328
1329	return if $self->{deny_save};
1330
1331	local $self->{last_access} = $self->last_access;#d#
1332
1333	if ($uniq) {
1334	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335	$self->save_objects ($uniq, cf::IO_UNIQUES);
1336	} else {
1337	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338	}
1339	}	2262	}
1340		2263
1341	sub swap_out {	2264	sub swap_out {
1342	my ($self) = @_;	2265	my ($self) = @_;
1343		2266
1344	# save first because save cedes	2267	my $lock = cf::lock_acquire "map_data:$self->{path}";
1345	$self->save;
1346		2268
		2269	return if $self->in_memory != cf::MAP_ACTIVE;
		2270	return if $self->{deny_save};
1347	return if $self->players;	2271	return if $self->players;
1348	return if $self->in_memory != cf::MAP_IN_MEMORY;
1349	return if $self->{deny_save};
1350		2272
		2273	# first deactivate the map and "unlink" it from the core
		2274	$self->deactivate;
		2275	$_->clear_links_to ($self) for values %cf::MAP;
		2276	$self->in_memory (cf::MAP_SWAPPED);
		2277
		2278	# then atomically save
		2279	$self->_save;
		2280
		2281	# then free the map
1351	$self->clear;	2282	$self->clear;
1352	$self->in_memory (cf::MAP_SWAPPED);
1353	}	2283	}
1354		2284
1355	sub reset_at {	2285	sub reset_at {
1356	my ($self) = @_;	2286	my ($self) = @_;
1357		2287
1358	# TODO: safety, remove and allow resettable per-player maps	2288	# TODO: safety, remove and allow resettable per-player maps
1359	return 1e99 if $self->{path}{user_rel};
1360	return 1e99 if $self->{deny_reset};	2289	return 1e99 if $self->{deny_reset};
1361		2290
1362	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2291	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2292	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364		2293
…		…
1369	my ($self) = @_;	2298	my ($self) = @_;
1370		2299
1371	$self->reset_at <= $cf::RUNTIME	2300	$self->reset_at <= $cf::RUNTIME
1372	}	2301	}
1373		2302
1374	sub unlink_save {
1375	my ($self) = @_;
1376
1377	utf8::encode (my $save = $self->{path}->save_path);
1378	aioreq_pri 3; IO::AIO::aio_unlink $save;
1379	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380	}
1381
1382	sub rename {
1383	my ($self, $new_path) = @_;
1384
1385	$self->unlink_save;
1386
1387	delete $cf::MAP{$self->path};
1388	$self->{path} = new cf::path $new_path;
1389	$self->path ($self->{path}->as_string);
1390	$cf::MAP{$self->path} = $self;
1391
1392	$self->save;
1393	}
1394
1395	sub reset {	2303	sub reset {
1396	my ($self) = @_;	2304	my ($self) = @_;
1397		2305
		2306	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2307
1398	return if $self->players;	2308	return if $self->players;
1399	return if $self->{path}{user_rel};#d#
1400		2309
1401	warn "resetting map ", $self->path;#d#	2310	warn "resetting map ", $self->path, "\n";
		2311
		2312	$self->in_memory (cf::MAP_SWAPPED);
		2313
		2314	# need to save uniques path
		2315	unless ($self->{deny_save}) {
		2316	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2317
		2318	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2319	if $uniq;
		2320	}
1402		2321
1403	delete $cf::MAP{$self->path};	2322	delete $cf::MAP{$self->path};
1404		2323
		2324	$self->deactivate;
1405	$_->clear_links_to ($self) for values %cf::MAP;	2325	$_->clear_links_to ($self) for values %cf::MAP;
		2326	$self->clear;
1406		2327
1407	$self->unlink_save;	2328	$self->unlink_save;
1408	$self->destroy;	2329	$self->destroy;
1409	}	2330	}
1410		2331
1411	my $nuke_counter = "aaaa";	2332	my $nuke_counter = "aaaa";
1412		2333
1413	sub nuke {	2334	sub nuke {
1414	my ($self) = @_;	2335	my ($self) = @_;
1415		2336
		2337	{
		2338	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2339
		2340	delete $cf::MAP{$self->path};
		2341
		2342	$self->unlink_save;
		2343
		2344	bless $self, "cf::map";
		2345	delete $self->{deny_reset};
1416	$self->{deny_save} = 1;	2346	$self->{deny_save} = 1;
1417	$self->reset_timeout (1);	2347	$self->reset_timeout (1);
1418	$self->rename ("{nuke}/" . ($nuke_counter++));	2348	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2349
		2350	$cf::MAP{$self->path} = $self;
		2351	}
		2352
1419	$self->reset; # polite request, might not happen	2353	$self->reset; # polite request, might not happen
1420	}	2354	}
1421		2355
1422	sub customise_for {	2356	=item $maps = cf::map::tmp_maps
1423	my ($map, $ob) = @_;
1424		2357
1425	if ($map->per_player) {	2358	Returns an arrayref with all map paths of currently instantiated and saved
1426	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2359	maps. May block.
		2360
		2361	=cut
		2362
		2363	sub tmp_maps() {
1427	}	2364	[
1428		2365	map {
1429	$map	2366	utf8::decode $_;
		2367	/\.map$/
		2368	? normalise $_
		2369	: ()
		2370	} @{ aio_readdir $TMPDIR or [] }
		2371	]
1430	}	2372	}
1431		2373
1432	sub emergency_save {	2374	=item $maps = cf::map::random_maps
1433	my $freeze_guard = cf::freeze_mainloop;
1434		2375
1435	warn "enter emergency map save\n";	2376	Returns an arrayref with all map paths of currently instantiated and saved
		2377	random maps. May block.
1436		2378
1437	cf::sync_job {	2379	=cut
1438	warn "begin emergency map save\n";	2380
1439	$_->save for values %cf::MAP;	2381	sub random_maps() {
		2382	[
		2383	map {
		2384	utf8::decode $_;
		2385	/\.map$/
		2386	? normalise "?random/$_"
		2387	: ()
		2388	} @{ aio_readdir $RANDOMDIR or [] }
		2389	]
		2390	}
		2391
		2392	=item cf::map::unique_maps
		2393
		2394	Returns an arrayref of paths of all shared maps that have
		2395	instantiated unique items. May block.
		2396
		2397	=cut
		2398
		2399	sub unique_maps() {
		2400	[
		2401	map {
		2402	utf8::decode $_;
		2403	s/\.map$//; # TODO future compatibility hack
		2404	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2405	? ()
		2406	: normalise $_
		2407	} @{ aio_readdir $UNIQUEDIR or [] }
		2408	]
		2409	}
		2410
		2411	=item cf::map::static_maps
		2412
		2413	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2414	file in the shared directory excluding F</styles> and F</editor>). May
		2415	block.
		2416
		2417	=cut
		2418
		2419	sub static_maps() {
		2420	my @dirs = "";
		2421	my @maps;
		2422
		2423	while (@dirs) {
		2424	my $dir = shift @dirs;
		2425
		2426	next if $dir eq "/styles" || $dir eq "/editor";
		2427
		2428	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2429	or return;
		2430
		2431	for (@$files) {
		2432	s/\.map$// or next;
		2433	utf8::decode $_;
		2434	push @maps, "$dir/$_";
		2435	}
		2436
		2437	push @dirs, map "$dir/$_", @$dirs;
1440	};	2438	}
1441		2439
1442	warn "end emergency map save\n";	2440	\@maps
		2441	}
		2442
		2443	=back
		2444
		2445	=head3 cf::object
		2446
		2447	=cut
		2448
		2449	package cf::object;
		2450
		2451	=over 4
		2452
		2453	=item $ob->inv_recursive
		2454
		2455	Returns the inventory of the object I<and> their inventories, recursively,
		2456	but I<not> the object itself.
		2457
		2458	=cut
		2459
		2460	sub inv_recursive_;
		2461	sub inv_recursive_ {
		2462	map { $_, inv_recursive_ $_->inv } @_
		2463	}
		2464
		2465	sub inv_recursive {
		2466	inv_recursive_ inv $_[0]
		2467	}
		2468
		2469	=item $ref = $ob->ref
		2470
		2471	Creates and returns a persistent reference to an object that can be stored as a string.
		2472
		2473	=item $ob = cf::object::deref ($refstring)
		2474
		2475	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2476	even if the object actually exists. May block.
		2477
		2478	=cut
		2479
		2480	sub deref {
		2481	my ($ref) = @_;
		2482
		2483	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2484	my ($uuid, $name) = ($1, $2);
		2485	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2486	or return;
		2487	$pl->ob->uuid eq $uuid
		2488	or return;
		2489
		2490	$pl->ob
		2491	} else {
		2492	warn "$ref: cannot resolve object reference\n";
		2493	undef
		2494	}
1443	}	2495	}
1444		2496
1445	package cf;	2497	package cf;
1446		2498
1447	=back	2499	=back
1448
1449		2500
1450	=head3 cf::object::player	2501	=head3 cf::object::player
1451		2502
1452	=over 4	2503	=over 4
1453		2504
…		…
1456	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2507	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1457	can be C<undef>. Does the right thing when the player is currently in a	2508	can be C<undef>. Does the right thing when the player is currently in a
1458	dialogue with the given NPC character.	2509	dialogue with the given NPC character.
1459		2510
1460	=cut	2511	=cut
		2512
		2513	our $SAY_CHANNEL = {
		2514	id => "say",
		2515	title => "Map",
		2516	reply => "say ",
		2517	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2518	};
		2519
		2520	our $CHAT_CHANNEL = {
		2521	id => "chat",
		2522	title => "Chat",
		2523	reply => "chat ",
		2524	tooltip => "Player chat and shouts, global to the server.",
		2525	};
1461		2526
1462	# rough implementation of a future "reply" method that works	2527	# rough implementation of a future "reply" method that works
1463	# with dialog boxes.	2528	# with dialog boxes.
1464	#TODO: the first argument must go, split into a $npc->reply_to ( method	2529	#TODO: the first argument must go, split into a $npc->reply_to ( method
1465	sub cf::object::player::reply($$$;$) {	2530	sub cf::object::player::reply($$$;$) {
…		…
1467		2532
1468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2533	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1469		2534
1470	if ($self->{record_replies}) {	2535	if ($self->{record_replies}) {
1471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2536	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2537
1472	} else {	2538	} else {
		2539	my $pl = $self->contr;
		2540
		2541	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2542	my $dialog = $pl->{npc_dialog};
		2543	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2544
		2545	} else {
1473	$msg = $npc->name . " says: $msg" if $npc;	2546	$msg = $npc->name . " says: $msg" if $npc;
1474	$self->message ($msg, $flags);	2547	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2548	}
1475	}	2549	}
		2550	}
		2551
		2552	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2553
		2554	=cut
		2555
		2556	sub cf::object::send_msg {
		2557	my $pl = shift->contr
		2558	or return;
		2559	$pl->send_msg (@_);
1476	}	2560	}
1477		2561
1478	=item $player_object->may ("access")	2562	=item $player_object->may ("access")
1479		2563
1480	Returns wether the given player is authorized to access resource "access"	2564	Returns wether the given player is authorized to access resource "access"
…		…
1493		2577
1494	=item $player_object->enter_link	2578	=item $player_object->enter_link
1495		2579
1496	Freezes the player and moves him/her to a special map (C<{link}>).	2580	Freezes the player and moves him/her to a special map (C<{link}>).
1497		2581
1498	The player should be reaosnably safe there for short amounts of time. You	2582	The player should be reasonably safe there for short amounts of time (e.g.
1499	I<MUST> call C<leave_link> as soon as possible, though.	2583	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2584	though, as the palyer cannot control the character while it is on the link
		2585	map.
		2586
		2587	Will never block.
1500		2588
1501	=item $player_object->leave_link ($map, $x, $y)	2589	=item $player_object->leave_link ($map, $x, $y)
1502		2590
1503	Moves the player out of the specila link map onto the given map. If the	2591	Moves the player out of the special C<{link}> map onto the specified
1504	map is not valid (or omitted), the player will be moved back to the	2592	map. If the map is not valid (or omitted), the player will be moved back
1505	location he/she was before the call to C<enter_link>, or, if that fails,	2593	to the location he/she was before the call to C<enter_link>, or, if that
1506	to the emergency map position.	2594	fails, to the emergency map position.
1507		2595
1508	Might block.	2596	Might block.
1509		2597
1510	=cut	2598	=cut
		2599
		2600	sub link_map {
		2601	unless ($LINK_MAP) {
		2602	$LINK_MAP = cf::map::find "{link}"
		2603	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2604	$LINK_MAP->load;
		2605	}
		2606
		2607	$LINK_MAP
		2608	}
1511		2609
1512	sub cf::object::player::enter_link {	2610	sub cf::object::player::enter_link {
1513	my ($self) = @_;	2611	my ($self) = @_;
1514		2612
1515	$self->deactivate_recursive;	2613	$self->deactivate_recursive;
1516		2614
1517	return if $self->map == $LINK_MAP;	2615	return if UNIVERSAL::isa $self->map, "ext::map_link";
1518		2616
1519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2617	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520	if $self->map;	2618	if $self->map && $self->map->{path} ne "{link}";
1521		2619
1522	$self->enter_map ($LINK_MAP, 20, 20);	2620	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1523	}	2621	}
1524		2622
1525	sub cf::object::player::leave_link {	2623	sub cf::object::player::leave_link {
1526	my ($self, $map, $x, $y) = @_;	2624	my ($self, $map, $x, $y) = @_;
		2625
		2626	return unless $self->contr->active;
1527		2627
1528	my $link_pos = delete $self->{_link_pos};	2628	my $link_pos = delete $self->{_link_pos};
1529		2629
1530	unless ($map) {	2630	unless ($map) {
1531	# restore original map position	2631	# restore original map position
…		…
1542	($x, $y) = (-1, -1)	2642	($x, $y) = (-1, -1)
1543	unless (defined $x) && (defined $y);	2643	unless (defined $x) && (defined $y);
1544		2644
1545	# use -1 or undef as default coordinates, not 0, 0	2645	# use -1 or undef as default coordinates, not 0, 0
1546	($x, $y) = ($map->enter_x, $map->enter_y)	2646	($x, $y) = ($map->enter_x, $map->enter_y)
1547	if $x <=0 && $y <= 0;	2647	if $x <= 0 && $y <= 0;
1548		2648
1549	$map->load;	2649	$map->load;
		2650	$map->load_neighbours;
1550		2651
		2652	return unless $self->contr->active;
		2653
		2654	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2655	$self->enter_map ($map, $x, $y);
		2656
		2657	# only activate afterwards, to support waiting in hooks
1551	$self->activate_recursive;	2658	$self->activate_recursive;
1552	$self->enter_map ($map, $x, $y);
1553	}	2659	}
1554		2660
1555	cf::player->attach (	2661	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1556	on_logout => sub {
1557	my ($pl) = @_;
1558		2662
1559	# abort map switching before logout	2663	Moves the player to the given map-path and coordinates by first freezing
1560	if ($pl->ob->{_link_pos}) {	2664	her, loading and preparing them map, calling the provided $check callback
1561	cf::sync_job {	2665	that has to return the map if sucecssful, and then unfreezes the player on
1562	$pl->ob->leave_link	2666	the new (success) or old (failed) map position. In either case, $done will
1563	};	2667	be called at the end of this process.
1564	}
1565	},
1566	on_login => sub {
1567	my ($pl) = @_;
1568		2668
1569	# try to abort aborted map switching on player login :)	2669	Note that $check will be called with a potentially non-loaded map, so if
1570	# should happen only on crashes	2670	it needs a loaded map it has to call C<< ->load >>.
1571	if ($pl->ob->{_link_pos}) {
1572	$pl->ob->enter_link;
1573	cf::async {
1574	# we need this sleep as the login has a concurrent enter_exit running
1575	# and this sleep increases chances of the player not ending up in scorn
1576	Coro::Timer::sleep 1;
1577	$pl->ob->leave_link;
1578	};
1579	}
1580	},
1581	);
1582		2671
1583	=item $player_object->goto_map ($path, $x, $y)
1584
1585	=cut	2672	=cut
1586		2673
		2674	our $GOTOGEN;
		2675
1587	sub cf::object::player::goto_map {	2676	sub cf::object::player::goto {
1588	my ($self, $path, $x, $y) = @_;	2677	my ($self, $path, $x, $y, $check, $done) = @_;
		2678
		2679	# do generation counting so two concurrent goto's will be executed in-order
		2680	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1589		2681
1590	$self->enter_link;	2682	$self->enter_link;
1591		2683
1592	(cf::async {	2684	(async {
1593	$path = new cf::path $path;	2685	$Coro::current->{desc} = "player::goto $path $x $y";
1594		2686
1595	my $map = cf::map::find $path->as_string;	2687	# *tag paths override both path and x|y
		2688	if ($path =~ /^\*(.*)$/) {
		2689	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2690	my $ob = $obs[rand @obs];
		2691
		2692	# see if we actually can go there
		2693	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2694	$ob = $obs[rand @obs];
		2695	} else {
		2696	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2697	}
		2698	# else put us there anyways for now #d#
		2699
		2700	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2701	} else {
		2702	($path, $x, $y) = (undef, undef, undef);
		2703	}
		2704	}
		2705
		2706	my $map = eval {
		2707	my $map = defined $path ? cf::map::find $path : undef;
		2708
		2709	if ($map) {
1596	$map = $map->customise_for ($self) if $map;	2710	$map = $map->customise_for ($self);
1597		2711	$map = $check->($map) if $check && $map;
1598	# warn "entering ", $map->path, " at ($x, $y)\n"	2712	} else {
1599	# if $map;
1600
1601	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2713	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2714	}
1602		2715
		2716	$map
		2717	};
		2718
		2719	if ($@) {
		2720	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2721	LOG llevError | logBacktrace, Carp::longmess $@;
		2722	}
		2723
		2724	if ($gen == $self->{_goto_generation}) {
		2725	delete $self->{_goto_generation};
1603	$self->leave_link ($map, $x, $y);	2726	$self->leave_link ($map, $x, $y);
		2727	}
		2728
		2729	$done->() if $done;
1604	})->prio (1);	2730	})->prio (1);
1605	}	2731	}
1606		2732
1607	=item $player_object->enter_exit ($exit_object)	2733	=item $player_object->enter_exit ($exit_object)
1608		2734
…		…
1610		2736
1611	sub parse_random_map_params {	2737	sub parse_random_map_params {
1612	my ($spec) = @_;	2738	my ($spec) = @_;
1613		2739
1614	my $rmp = { # defaults	2740	my $rmp = { # defaults
1615	xsize => 10,	2741	xsize => (cf::rndm 15, 40),
1616	ysize => 10,	2742	ysize => (cf::rndm 15, 40),
		2743	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2744	#layout => string,
1617	};	2745	};
1618		2746
1619	for (split /\n/, $spec) {	2747	for (split /\n/, $spec) {
1620	my ($k, $v) = split /\s+/, $_, 2;	2748	my ($k, $v) = split /\s+/, $_, 2;
1621		2749
…		…
1633	# that depends on the exit object	2761	# that depends on the exit object
1634		2762
1635	my $rmp = parse_random_map_params $exit->msg;	2763	my $rmp = parse_random_map_params $exit->msg;
1636		2764
1637	if ($exit->map) {	2765	if ($exit->map) {
1638	$rmp->{region} = $exit->map->region_name;	2766	$rmp->{region} = $exit->region->name;
1639	$rmp->{origin_map} = $exit->map->path;	2767	$rmp->{origin_map} = $exit->map->path;
1640	$rmp->{origin_x} = $exit->x;	2768	$rmp->{origin_x} = $exit->x;
1641	$rmp->{origin_y} = $exit->y;	2769	$rmp->{origin_y} = $exit->y;
		2770
		2771	$exit->map->touch;
1642	}	2772	}
1643		2773
1644	$rmp->{random_seed} ||= $exit->random_seed;	2774	$rmp->{random_seed} ||= $exit->random_seed;
1645		2775
1646	my $data = cf::to_json $rmp;	2776	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1647	my $md5 = Digest::MD5::md5_hex $data;	2777	my $md5 = Digest::MD5::md5_hex $data;
		2778	my $meta = "$RANDOMDIR/$md5.meta";
1648		2779
1649	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2780	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1650	aio_write $fh, 0, (length $data), $data, 0;	2781	aio_write $fh, 0, (length $data), $data, 0;
		2782	undef $fh;
		2783	aio_rename "$meta~", $meta;
1651		2784
		2785	my $slaying = "?random/$md5";
		2786
		2787	if ($exit->valid) {
1652	$exit->slaying ("?random/$md5");	2788	$exit->slaying ("?random/$md5");
1653	$exit->msg (undef);	2789	$exit->msg (undef);
		2790	}
1654	}	2791	}
1655	}	2792	}
1656		2793
1657	sub cf::object::player::enter_exit {	2794	sub cf::object::player::enter_exit {
1658	my ($self, $exit) = @_;	2795	my ($self, $exit) = @_;
1659		2796
1660	return unless $self->type == cf::PLAYER;	2797	return unless $self->type == cf::PLAYER;
1661		2798
1662	$self->enter_link;	2799	$self->enter_link;
1663		2800
1664	(cf::async {	2801	(async {
1665	$self->deactivate_recursive; # just to be sure	2802	$Coro::current->{desc} = "enter_exit";
		2803
1666	unless (eval {	2804	unless (eval {
		2805	$self->deactivate_recursive; # just to be sure
		2806
		2807	# random map handling
		2808	{
		2809	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2810
1667	prepare_random_map $exit	2811	prepare_random_map $exit
1668	if $exit->slaying eq "/!";	2812	if $exit->slaying eq "/!";
		2813	}
1669		2814
1670	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2815	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1671	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2816	my $x = $exit->stats->hp;
		2817	my $y = $exit->stats->sp;
1672		2818
		2819	$self->goto ($map, $x, $y);
		2820
		2821	# if exit is damned, update players death & WoR home-position
		2822	$self->contr->savebed ($map, $x, $y)
		2823	if $exit->flag (cf::FLAG_DAMNED);
		2824
1673	1;	2825	1
1674	}) {	2826	}) {
1675	$self->message ("Something went wrong deep within the crossfire server. "	2827	$self->message ("Something went wrong deep within the deliantra server. "
1676	. "I'll try to bring you back to the map you were before. "	2828	. "I'll try to bring you back to the map you were before. "
1677	. "Please report this to the dungeon master",	2829	. "Please report this to the dungeon master!",
1678	cf::NDI_UNIQUE | cf::NDI_RED);	2830	cf::NDI_UNIQUE | cf::NDI_RED);
1679		2831
1680	warn "ERROR in enter_exit: $@";	2832	warn "ERROR in enter_exit: $@";
1681	$self->leave_link;	2833	$self->leave_link;
1682	}	2834	}
1683	})->prio (1);	2835	})->prio (1);
…		…
1696		2848
1697	sub cf::client::send_drawinfo {	2849	sub cf::client::send_drawinfo {
1698	my ($self, $text, $flags) = @_;	2850	my ($self, $text, $flags) = @_;
1699		2851
1700	utf8::encode $text;	2852	utf8::encode $text;
1701	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2853	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1702	}	2854	}
1703		2855
		2856	=item $client->send_big_packet ($pkt)
		2857
		2858	Like C<send_packet>, but tries to compress large packets, and fragments
		2859	them as required.
		2860
		2861	=cut
		2862
		2863	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2864
		2865	sub cf::client::send_big_packet {
		2866	my ($self, $pkt) = @_;
		2867
		2868	# try lzf for large packets
		2869	$pkt = "lzf " . Compress::LZF::compress $pkt
		2870	if 1024 <= length $pkt and $self->{can_lzf};
		2871
		2872	# split very large packets
		2873	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2874	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2875	$pkt = "frag";
		2876	}
		2877
		2878	$self->send_packet ($pkt);
		2879	}
		2880
		2881	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2882
		2883	Send a drawinfo or msg packet to the client, formatting the msg for the
		2884	client if neccessary. C<$type> should be a string identifying the type of
		2885	the message, with C<log> being the default. If C<$color> is negative, suppress
		2886	the message unless the client supports the msg packet.
		2887
		2888	=cut
		2889
		2890	# non-persistent channels (usually the info channel)
		2891	our %CHANNEL = (
		2892	"c/motd" => {
		2893	id => "infobox",
		2894	title => "MOTD",
		2895	reply => undef,
		2896	tooltip => "The message of the day",
		2897	},
		2898	"c/identify" => {
		2899	id => "infobox",
		2900	title => "Identify",
		2901	reply => undef,
		2902	tooltip => "Items recently identified",
		2903	},
		2904	"c/examine" => {
		2905	id => "infobox",
		2906	title => "Examine",
		2907	reply => undef,
		2908	tooltip => "Signs and other items you examined",
		2909	},
		2910	"c/shopinfo" => {
		2911	id => "infobox",
		2912	title => "Shop Info",
		2913	reply => undef,
		2914	tooltip => "What your bargaining skill tells you about the shop",
		2915	},
		2916	"c/book" => {
		2917	id => "infobox",
		2918	title => "Book",
		2919	reply => undef,
		2920	tooltip => "The contents of a note or book",
		2921	},
		2922	"c/lookat" => {
		2923	id => "infobox",
		2924	title => "Look",
		2925	reply => undef,
		2926	tooltip => "What you saw there",
		2927	},
		2928	"c/who" => {
		2929	id => "infobox",
		2930	title => "Players",
		2931	reply => undef,
		2932	tooltip => "Shows players who are currently online",
		2933	},
		2934	"c/body" => {
		2935	id => "infobox",
		2936	title => "Body Parts",
		2937	reply => undef,
		2938	tooltip => "Shows which body parts you posess and are available",
		2939	},
		2940	"c/statistics" => {
		2941	id => "infobox",
		2942	title => "Statistics",
		2943	reply => undef,
		2944	tooltip => "Shows your primary statistics",
		2945	},
		2946	"c/skills" => {
		2947	id => "infobox",
		2948	title => "Skills",
		2949	reply => undef,
		2950	tooltip => "Shows your experience per skill and item power",
		2951	},
		2952	"c/shopitems" => {
		2953	id => "infobox",
		2954	title => "Shop Items",
		2955	reply => undef,
		2956	tooltip => "Shows the items currently for sale in this shop",
		2957	},
		2958	"c/resistances" => {
		2959	id => "infobox",
		2960	title => "Resistances",
		2961	reply => undef,
		2962	tooltip => "Shows your resistances",
		2963	},
		2964	"c/pets" => {
		2965	id => "infobox",
		2966	title => "Pets",
		2967	reply => undef,
		2968	tooltip => "Shows information abotu your pets/a specific pet",
		2969	},
		2970	"c/perceiveself" => {
		2971	id => "infobox",
		2972	title => "Perceive Self",
		2973	reply => undef,
		2974	tooltip => "You gained detailed knowledge about yourself",
		2975	},
		2976	"c/uptime" => {
		2977	id => "infobox",
		2978	title => "Uptime",
		2979	reply => undef,
		2980	tooltip => "How long the server has been running since last restart",
		2981	},
		2982	"c/mapinfo" => {
		2983	id => "infobox",
		2984	title => "Map Info",
		2985	reply => undef,
		2986	tooltip => "Information related to the maps",
		2987	},
		2988	"c/party" => {
		2989	id => "party",
		2990	title => "Party",
		2991	reply => "gsay ",
		2992	tooltip => "Messages and chat related to your party",
		2993	},
		2994	"c/death" => {
		2995	id => "death",
		2996	title => "Death",
		2997	reply => undef,
		2998	tooltip => "Reason for and more info about your most recent death",
		2999	},
		3000	"c/say" => $SAY_CHANNEL,
		3001	"c/chat" => $CHAT_CHANNEL,
		3002	);
		3003
		3004	sub cf::client::send_msg {
		3005	my ($self, $channel, $msg, $color, @extra) = @_;
		3006
		3007	$msg = $self->pl->expand_cfpod ($msg)
		3008	unless $color & cf::NDI_VERBATIM;
		3009
		3010	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3011
		3012	# check predefined channels, for the benefit of C
		3013	if ($CHANNEL{$channel}) {
		3014	$channel = $CHANNEL{$channel};
		3015
		3016	$self->ext_msg (channel_info => $channel);
		3017	$channel = $channel->{id};
		3018
		3019	} elsif (ref $channel) {
		3020	# send meta info to client, if not yet sent
		3021	unless (exists $self->{channel}{$channel->{id}}) {
		3022	$self->{channel}{$channel->{id}} = $channel;
		3023	$self->ext_msg (channel_info => $channel);
		3024	}
		3025
		3026	$channel = $channel->{id};
		3027	}
		3028
		3029	return unless @extra || length $msg;
		3030
		3031	# default colour, mask it out
		3032	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3033	if $color & cf::NDI_DEF;
		3034
		3035	my $pkt = "msg "
		3036	. $self->{json_coder}->encode (
		3037	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3038	);
		3039
		3040	$self->send_big_packet ($pkt);
		3041	}
		3042
		3043	=item $client->ext_msg ($type, @msg)
		3044
		3045	Sends an ext event to the client.
		3046
		3047	=cut
		3048
		3049	sub cf::client::ext_msg($$@) {
		3050	my ($self, $type, @msg) = @_;
		3051
		3052	if ($self->extcmd == 2) {
		3053	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3054	} elsif ($self->extcmd == 1) { # TODO: remove
		3055	push @msg, msgtype => "event_$type";
		3056	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3057	}
		3058	}
		3059
		3060	=item $client->ext_reply ($msgid, @msg)
		3061
		3062	Sends an ext reply to the client.
		3063
		3064	=cut
		3065
		3066	sub cf::client::ext_reply($$@) {
		3067	my ($self, $id, @msg) = @_;
		3068
		3069	if ($self->extcmd == 2) {
		3070	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3071	} elsif ($self->extcmd == 1) {
		3072	#TODO: version 1, remove
		3073	unshift @msg, msgtype => "reply", msgid => $id;
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3075	}
		3076	}
1704		3077
1705	=item $success = $client->query ($flags, "text", \&cb)	3078	=item $success = $client->query ($flags, "text", \&cb)
1706		3079
1707	Queues a query to the client, calling the given callback with	3080	Queues a query to the client, calling the given callback with
1708	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3081	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1709	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3082	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1710		3083
1711	Queries can fail, so check the return code. Or don't, as queries will become	3084	Queries can fail, so check the return code. Or don't, as queries will
1712	reliable at some point in the future.	3085	become reliable at some point in the future.
1713		3086
1714	=cut	3087	=cut
1715		3088
1716	sub cf::client::query {	3089	sub cf::client::query {
1717	my ($self, $flags, $text, $cb) = @_;	3090	my ($self, $flags, $text, $cb) = @_;
…		…
1725	utf8::encode $text;	3098	utf8::encode $text;
1726	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3099	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1727		3100
1728	$self->send_packet ($self->{query_queue}[0][0])	3101	$self->send_packet ($self->{query_queue}[0][0])
1729	if @{ $self->{query_queue} } == 1;	3102	if @{ $self->{query_queue} } == 1;
		3103
		3104	1
1730	}	3105	}
1731		3106
1732	cf::client->attach (	3107	cf::client->attach (
		3108	on_connect => sub {
		3109	my ($ns) = @_;
		3110
		3111	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3112	},
1733	on_reply => sub {	3113	on_reply => sub {
1734	my ($ns, $msg) = @_;	3114	my ($ns, $msg) = @_;
1735		3115
1736	# this weird shuffling is so that direct followup queries	3116	# this weird shuffling is so that direct followup queries
1737	# get handled first	3117	# get handled first
1738	my $queue = delete $ns->{query_queue}	3118	my $queue = delete $ns->{query_queue}
1739	or return; # be conservative, not sure how that can happen, but we saw a crash here	3119	or return; # be conservative, not sure how that can happen, but we saw a crash here
1740		3120
1741	(shift @$queue)->[1]->($msg);	3121	(shift @$queue)->[1]->($msg);
		3122	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742		3123
1743	push @{ $ns->{query_queue} }, @$queue;	3124	push @{ $ns->{query_queue} }, @$queue;
1744		3125
1745	if (@{ $ns->{query_queue} } == @$queue) {	3126	if (@{ $ns->{query_queue} } == @$queue) {
1746	if (@$queue) {	3127	if (@$queue) {
…		…
1748	} else {	3129	} else {
1749	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3130	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1750	}	3131	}
1751	}	3132	}
1752	},	3133	},
		3134	on_exticmd => sub {
		3135	my ($ns, $buf) = @_;
		3136
		3137	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3138
		3139	if (ref $msg) {
		3140	my ($type, $reply, @payload) =
		3141	"ARRAY" eq ref $msg
		3142	? @$msg
		3143	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3144
		3145	my @reply;
		3146
		3147	if (my $cb = $EXTICMD{$type}) {
		3148	@reply = $cb->($ns, @payload);
		3149	}
		3150
		3151	$ns->ext_reply ($reply, @reply)
		3152	if $reply;
		3153
		3154	} else {
		3155	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3156	}
		3157
		3158	cf::override;
		3159	},
1753	);	3160	);
1754		3161
1755	=item $client->coro (\&cb)	3162	=item $client->async (\&cb)
1756		3163
1757	Create a new coroutine, running the specified callback. The coroutine will	3164	Create a new coroutine, running the specified callback. The coroutine will
1758	be automatically cancelled when the client gets destroyed (e.g. on logout,	3165	be automatically cancelled when the client gets destroyed (e.g. on logout,
1759	or loss of connection).	3166	or loss of connection).
1760		3167
1761	=cut	3168	=cut
1762		3169
1763	sub cf::client::coro {	3170	sub cf::client::async {
1764	my ($self, $cb) = @_;	3171	my ($self, $cb) = @_;
1765		3172
1766	my $coro = &cf::async ($cb);	3173	my $coro = &Coro::async ($cb);
1767		3174
1768	$coro->on_destroy (sub {	3175	$coro->on_destroy (sub {
1769	delete $self->{_coro}{$coro+0};	3176	delete $self->{_coro}{$coro+0};
1770	});	3177	});
1771		3178
…		…
1773		3180
1774	$coro	3181	$coro
1775	}	3182	}
1776		3183
1777	cf::client->attach (	3184	cf::client->attach (
1778	on_destroy => sub {	3185	on_client_destroy => sub {
1779	my ($ns) = @_;	3186	my ($ns) = @_;
1780		3187
1781	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3188	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1782	},	3189	},
1783	);	3190	);
…		…
1798	our $safe = new Safe "safe";	3205	our $safe = new Safe "safe";
1799	our $safe_hole = new Safe::Hole;	3206	our $safe_hole = new Safe::Hole;
1800		3207
1801	$SIG{FPE} = 'IGNORE';	3208	$SIG{FPE} = 'IGNORE';
1802		3209
1803	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3210	$safe->permit_only (Opcode::opset qw(
		3211	:base_core :base_mem :base_orig :base_math :base_loop
		3212	grepstart grepwhile mapstart mapwhile
		3213	sort time
		3214	));
1804		3215
1805	# here we export the classes and methods available to script code	3216	# here we export the classes and methods available to script code
1806		3217
1807	=pod	3218	=pod
1808		3219
1809	The following fucntions and emthods are available within a safe environment:	3220	The following functions and methods are available within a safe environment:
1810		3221
1811	cf::object contr pay_amount pay_player map	3222	cf::object
		3223	contr pay_amount pay_player map x y force_find force_add destroy
		3224	insert remove name archname title slaying race decrease split
		3225	value
		3226
1812	cf::object::player player	3227	cf::object::player
1813	cf::player peaceful	3228	player
1814	cf::map trigger	3229
		3230	cf::player
		3231	peaceful
		3232
		3233	cf::map
		3234	trigger
1815		3235
1816	=cut	3236	=cut
1817		3237
1818	for (	3238	for (
1819	["cf::object" => qw(contr pay_amount pay_player map)],	3239	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3240	insert remove inv nrof name archname title slaying race
		3241	decrease split destroy change_exp value msg lore send_msg)],
1820	["cf::object::player" => qw(player)],	3242	["cf::object::player" => qw(player)],
1821	["cf::player" => qw(peaceful)],	3243	["cf::player" => qw(peaceful send_msg)],
1822	["cf::map" => qw(trigger)],	3244	["cf::map" => qw(trigger)],
1823	) {	3245	) {
1824	no strict 'refs';	3246	no strict 'refs';
1825	my ($pkg, @funs) = @$_;	3247	my ($pkg, @funs) = @$_;
1826	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3248	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1844		3266
1845	my $qcode = $code;	3267	my $qcode = $code;
1846	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3268	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1847	$qcode =~ s/\n/\\n/g;	3269	$qcode =~ s/\n/\\n/g;
1848		3270
		3271	%vars = (_dummy => 0) unless %vars;
		3272
		3273	my @res;
1849	local $_;	3274	local $_;
1850	local @safe::cf::_safe_eval_args = values %vars;
1851		3275
1852	my $eval =	3276	my $eval =
1853	"do {\n"	3277	"do {\n"
1854	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3278	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1855	. "#line 0 \"{$qcode}\"\n"	3279	. "#line 0 \"{$qcode}\"\n"
1856	. $code	3280	. $code
1857	. "\n}"	3281	. "\n}"
1858	;	3282	;
1859		3283
		3284	if ($CFG{safe_eval}) {
1860	sub_generation_inc;	3285	sub_generation_inc;
		3286	local @safe::cf::_safe_eval_args = values %vars;
1861	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3287	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1862	sub_generation_inc;	3288	sub_generation_inc;
		3289	} else {
		3290	local @cf::_safe_eval_args = values %vars;
		3291	@res = wantarray ? eval eval : scalar eval $eval;
		3292	}
1863		3293
1864	if ($@) {	3294	if ($@) {
1865	warn "$@";	3295	warn "$@";
1866	warn "while executing safe code '$code'\n";	3296	warn "while executing safe code '$code'\n";
1867	warn "with arguments " . (join " ", %vars) . "\n";	3297	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1886	=cut	3316	=cut
1887		3317
1888	sub register_script_function {	3318	sub register_script_function {
1889	my ($fun, $cb) = @_;	3319	my ($fun, $cb) = @_;
1890		3320
1891	no strict 'refs';	3321	$fun = "safe::$fun" if $CFG{safe_eval};
1892	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3322	*$fun = $safe_hole->wrap ($cb);
1893	}	3323	}
1894		3324
1895	=back	3325	=back
1896		3326
1897	=cut	3327	=cut
1898		3328
1899	#############################################################################	3329	#############################################################################
		3330	# the server's init and main functions
1900		3331
1901	=head2 EXTENSION DATABASE SUPPORT	3332	sub load_facedata($) {
		3333	my ($path) = @_;
1902		3334
1903	Crossfire maintains a very simple database for extension use. It can	3335	# HACK to clear player env face cache, we need some signal framework
1904	currently store anything that can be serialised using Storable, which	3336	# for this (global event?)
1905	excludes objects.	3337	%ext::player_env::MUSIC_FACE_CACHE = ();
1906		3338
1907	The parameter C<$family> should best start with the name of the extension	3339	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1908	using it, it should be unique.
1909		3340
1910	=over 4	3341	warn "loading facedata from $path\n";
1911		3342
1912	=item $hashref = cf::db_get $family	3343	my $facedata;
		3344	0 < aio_load $path, $facedata
		3345	or die "$path: $!";
1913		3346
1914	Return a hashref for use by the extension C<$family>, which can be	3347	$facedata = Coro::Storable::thaw $facedata;
1915	modified. After modifications, you have to call C<cf::db_dirty> or
1916	C<cf::db_sync>.
1917		3348
1918	=item $value = cf::db_get $family => $key	3349	$facedata->{version} == 2
		3350	or cf::cleanup "$path: version mismatch, cannot proceed.";
1919		3351
1920	Returns a single value from the database	3352	# patch in the exptable
1921		3353	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1922	=item cf::db_put $family => $hashref	3354	$facedata->{resource}{"res/exp_table"} = {
1923		3355	type => FT_RSRC,
1924	Stores the given family hashref into the database. Updates are delayed, if	3356	data => $exp_table,
1925	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3357	hash => (Digest::MD5::md5 $exp_table),
1926
1927	=item cf::db_put $family => $key => $value
1928
1929	Stores the given C<$value> in the family hash. Updates are delayed, if you
1930	want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932	=item cf::db_dirty
1933
1934	Marks the database as dirty, to be updated at a later time.
1935
1936	=item cf::db_sync
1937
1938	Immediately write the database to disk I<if it is dirty>.
1939
1940	=cut
1941
1942	our $DB;
1943
1944	{
1945	my $path = cf::localdir . "/database.pst";
1946
1947	sub db_load() {
1948	$DB = stat $path ? Storable::retrieve $path : { };
1949	}
1950
1951	my $pid;
1952
1953	sub db_save() {
1954	waitpid $pid, 0 if $pid;
1955	if (0 == ($pid = fork)) {
1956	$DB->{_meta}{version} = 1;
1957	Storable::nstore $DB, "$path~";
1958	rename "$path~", $path;
1959	cf::_exit 0 if defined $pid;
1960	}
1961	}
1962
1963	my $dirty;
1964
1965	sub db_sync() {
1966	db_save if $dirty;
1967	undef $dirty;
1968	}
1969
1970	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1971	db_sync;
1972	});	3358	};
		3359	cf::cede_to_tick;
1973		3360
1974	sub db_dirty() {
1975	$dirty = 1;
1976	$idle->start;
1977	}	3361	{
		3362	my $faces = $facedata->{faceinfo};
1978		3363
1979	sub db_get($;$) {	3364	while (my ($face, $info) = each %$faces) {
1980	@_ >= 2	3365	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1981	? $DB->{$_[0]}{$_[1]}
1982	: ($DB->{$_[0]} ||= { })
1983	}
1984		3366
1985	sub db_put($$;$) {	3367	cf::face::set_visibility $idx, $info->{visibility};
1986	if (@_ >= 3) {	3368	cf::face::set_magicmap $idx, $info->{magicmap};
1987	$DB->{$_[0]}{$_[1]} = $_[2];	3369	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1988	} else {	3370	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1989	$DB->{$_[0]} = $_[1];
1990	}
1991	db_dirty;
1992	}
1993		3371
1994	cf::global->attach (	3372	cf::cede_to_tick;
1995	prio => 10000,
1996	on_cleanup => sub {
1997	db_sync;
1998	},	3373	}
1999	);
2000	}
2001		3374
2002	#############################################################################	3375	while (my ($face, $info) = each %$faces) {
2003	# the server's main()	3376	next unless $info->{smooth};
2004		3377
2005	sub cfg_load {	3378	my $idx = cf::face::find $face
		3379	or next;
		3380
		3381	if (my $smooth = cf::face::find $info->{smooth}) {
		3382	cf::face::set_smooth $idx, $smooth;
		3383	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3384	} else {
		3385	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3386	}
		3387
		3388	cf::cede_to_tick;
		3389	}
		3390	}
		3391
		3392	{
		3393	my $anims = $facedata->{animinfo};
		3394
		3395	while (my ($anim, $info) = each %$anims) {
		3396	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3397	cf::cede_to_tick;
		3398	}
		3399
		3400	cf::anim::invalidate_all; # d'oh
		3401	}
		3402
		3403	{
		3404	my $res = $facedata->{resource};
		3405
		3406	while (my ($name, $info) = each %$res) {
		3407	if (defined $info->{type}) {
		3408	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3409
		3410	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3411	cf::face::set_type $idx, $info->{type};
		3412	} else {
		3413	$RESOURCE{$name} = $info;
		3414	}
		3415
		3416	cf::cede_to_tick;
		3417	}
		3418	}
		3419
		3420	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3421
		3422	1
		3423	}
		3424
		3425	cf::global->attach (on_resource_update => sub {
		3426	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3427	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3428
		3429	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3430	my $sound = $soundconf->{compat}[$_]
		3431	or next;
		3432
		3433	my $face = cf::face::find "sound/$sound->[1]";
		3434	cf::sound::set $sound->[0] => $face;
		3435	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3436	}
		3437
		3438	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3439	my $face = cf::face::find "sound/$v";
		3440	cf::sound::set $k => $face;
		3441	}
		3442	}
		3443	});
		3444
		3445	register_exticmd fx_want => sub {
		3446	my ($ns, $want) = @_;
		3447
		3448	while (my ($k, $v) = each %$want) {
		3449	$ns->fx_want ($k, $v);
		3450	}
		3451	};
		3452
		3453	sub load_resource_file($) {
		3454	my $guard = lock_acquire "load_resource_file";
		3455
		3456	my $status = load_resource_file_ $_[0];
		3457	get_slot 0.1, 100;
		3458	cf::arch::commit_load;
		3459
		3460	$status
		3461	}
		3462
		3463	sub reload_regions {
		3464	# HACK to clear player env face cache, we need some signal framework
		3465	# for this (global event?)
		3466	%ext::player_env::MUSIC_FACE_CACHE = ();
		3467
		3468	load_resource_file "$MAPDIR/regions"
		3469	or die "unable to load regions file\n";
		3470
		3471	for (cf::region::list) {
		3472	$_->{match} = qr/$_->{match}/
		3473	if exists $_->{match};
		3474	}
		3475	}
		3476
		3477	sub reload_facedata {
		3478	load_facedata "$DATADIR/facedata"
		3479	or die "unable to load facedata\n";
		3480	}
		3481
		3482	sub reload_archetypes {
		3483	load_resource_file "$DATADIR/archetypes"
		3484	or die "unable to load archetypes\n";
		3485	}
		3486
		3487	sub reload_treasures {
		3488	load_resource_file "$DATADIR/treasures"
		3489	or die "unable to load treasurelists\n";
		3490	}
		3491
		3492	sub reload_resources {
		3493	warn "reloading resource files...\n";
		3494
		3495	reload_facedata;
		3496	reload_archetypes;
		3497	reload_regions;
		3498	reload_treasures;
		3499
		3500	warn "finished reloading resource files\n";
		3501	}
		3502
		3503	sub reload_config {
		3504	warn "reloading config file...\n";
		3505
2006	open my $fh, "<:utf8", cf::confdir . "/config"	3506	open my $fh, "<:utf8", "$CONFDIR/config"
2007	or return;	3507	or return;
2008		3508
2009	local $/;	3509	local $/;
2010	*CFG = YAML::Syck::Load <$fh>;	3510	*CFG = YAML::XS::Load scalar <$fh>;
2011		3511
2012	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3512	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3513
		3514	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3515	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2013		3516
2014	if (exists $CFG{mlockall}) {	3517	if (exists $CFG{mlockall}) {
2015	eval {	3518	eval {
2016	$CFG{mlockall} ? &mlockall : &munlockall	3519	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017	and die "WARNING: m(un)lockall failed: $!\n";	3520	and die "WARNING: m(un)lockall failed: $!\n";
2018	};	3521	};
2019	warn $@ if $@;	3522	warn $@ if $@;
2020	}	3523	}
		3524
		3525	warn "finished reloading resource files\n";
		3526	}
		3527
		3528	sub pidfile() {
		3529	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3530	or die "$PIDFILE: $!";
		3531	flock $fh, &Fcntl::LOCK_EX
		3532	or die "$PIDFILE: flock: $!";
		3533	$fh
		3534	}
		3535
		3536	# make sure only one server instance is running at any one time
		3537	sub atomic {
		3538	my $fh = pidfile;
		3539
		3540	my $pid = <$fh>;
		3541	kill 9, $pid if $pid > 0;
		3542
		3543	seek $fh, 0, 0;
		3544	print $fh $$;
		3545	}
		3546
		3547	sub main_loop {
		3548	warn "EV::loop starting\n";
		3549	if (1) {
		3550	EV::loop;
		3551	}
		3552	warn "EV::loop returned\n";
		3553	goto &main_loop unless $REALLY_UNLOOP;
2021	}	3554	}
2022		3555
2023	sub main {	3556	sub main {
		3557	cf::init_globals; # initialise logging
		3558
		3559	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3560	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3561	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3562	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3563
		3564	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3565
2024	# we must not ever block the main coroutine	3566	# we must not ever block the main coroutine
2025	local $Coro::idle = sub {	3567	local $Coro::idle = sub {
2026	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3568	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027	(Coro::unblock_sub {	3569	(async {
2028	Event::one_event;	3570	$Coro::current->{desc} = "IDLE BUG HANDLER";
2029	})->();	3571	EV::loop EV::LOOP_ONESHOT;
		3572	})->prio (Coro::PRIO_MAX);
2030	};	3573	};
2031		3574
2032	cfg_load;	3575	evthread_start IO::AIO::poll_fileno;
2033	db_load;	3576
		3577	cf::sync_job {
		3578	cf::init_experience;
		3579	cf::init_anim;
		3580	cf::init_attackmess;
		3581	cf::init_dynamic;
		3582
		3583	cf::load_settings;
		3584	cf::load_materials;
		3585
		3586	reload_resources;
		3587	reload_config;
		3588	db_init;
		3589
		3590	cf::init_uuid;
		3591	cf::init_signals;
		3592	cf::init_skills;
		3593
		3594	cf::init_beforeplay;
		3595
		3596	atomic;
		3597
2034	load_extensions;	3598	load_extensions;
2035	Event::loop;	3599
		3600	utime time, time, $RUNTIMEFILE;
		3601
		3602	# no (long-running) fork's whatsoever before this point(!)
		3603	use POSIX ();
		3604	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3605
		3606	(pop @POST_INIT)->(0) while @POST_INIT;
		3607	};
		3608
		3609	cf::object::thawer::errors_are_fatal 0;
		3610	warn "parse errors in files are no longer fatal from this point on.\n";
		3611
		3612	main_loop;
2036	}	3613	}
2037		3614
2038	#############################################################################	3615	#############################################################################
2039	# initialisation	3616	# initialisation and cleanup
2040		3617
		3618	# install some emergency cleanup handlers
		3619	BEGIN {
		3620	our %SIGWATCHER = ();
		3621	for my $signal (qw(INT HUP TERM)) {
		3622	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3623	cf::cleanup "SIG$signal";
		3624	};
		3625	}
		3626	}
		3627
		3628	sub write_runtime_sync {
		3629	my $t0 = AE::time;
		3630
		3631	# first touch the runtime file to show we are still running:
		3632	# the fsync below can take a very very long time.
		3633
		3634	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3635
		3636	my $guard = cf::lock_acquire "write_runtime";
		3637
		3638	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3639	or return;
		3640
		3641	my $value = $cf::RUNTIME + 90 + 10;
		3642	# 10 is the runtime save interval, for a monotonic clock
		3643	# 60 allows for the watchdog to kill the server.
		3644
		3645	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3646	and return;
		3647
		3648	# always fsync - this file is important
		3649	aio_fsync $fh
		3650	and return;
		3651
		3652	# touch it again to show we are up-to-date
		3653	aio_utime $fh, undef, undef;
		3654
		3655	close $fh
		3656	or return;
		3657
		3658	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3659	and return;
		3660
		3661	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3662
		3663	1
		3664	}
		3665
		3666	our $uuid_lock;
		3667	our $uuid_skip;
		3668
		3669	sub write_uuid_sync($) {
		3670	$uuid_skip ||= $_[0];
		3671
		3672	return if $uuid_lock;
		3673	local $uuid_lock = 1;
		3674
		3675	my $uuid = "$LOCALDIR/uuid";
		3676
		3677	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3678	or return;
		3679
		3680	my $value = uuid_seq uuid_cur;
		3681
		3682	unless ($value) {
		3683	warn "cowardly refusing to write zero uuid value!\n";
		3684	return;
		3685	}
		3686
		3687	my $value = uuid_str $value + $uuid_skip;
		3688	$uuid_skip = 0;
		3689
		3690	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3691	and return;
		3692
		3693	# always fsync - this file is important
		3694	aio_fsync $fh
		3695	and return;
		3696
		3697	close $fh
		3698	or return;
		3699
		3700	aio_rename "$uuid~", $uuid
		3701	and return;
		3702
		3703	warn "uuid file written ($value).\n";
		3704
		3705	1
		3706
		3707	}
		3708
		3709	sub write_uuid($$) {
		3710	my ($skip, $sync) = @_;
		3711
		3712	$sync ? write_uuid_sync $skip
		3713	: async { write_uuid_sync $skip };
		3714	}
		3715
		3716	sub emergency_save() {
		3717	my $freeze_guard = cf::freeze_mainloop;
		3718
		3719	warn "emergency_perl_save: enter\n";
		3720
		3721	cf::sync_job {
		3722	# this is a trade-off: we want to be very quick here, so
		3723	# save all maps without fsync, and later call a global sync
		3724	# (which in turn might be very very slow)
		3725	local $USE_FSYNC = 0;
		3726
		3727	# use a peculiar iteration method to avoid tripping on perl
		3728	# refcount bugs in for. also avoids problems with players
		3729	# and maps saved/destroyed asynchronously.
		3730	warn "emergency_perl_save: begin player save\n";
		3731	for my $login (keys %cf::PLAYER) {
		3732	my $pl = $cf::PLAYER{$login} or next;
		3733	$pl->valid or next;
		3734	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3735	$pl->save;
		3736	}
		3737	warn "emergency_perl_save: end player save\n";
		3738
		3739	warn "emergency_perl_save: begin map save\n";
		3740	for my $path (keys %cf::MAP) {
		3741	my $map = $cf::MAP{$path} or next;
		3742	$map->valid or next;
		3743	$map->save;
		3744	}
		3745	warn "emergency_perl_save: end map save\n";
		3746
		3747	warn "emergency_perl_save: begin database checkpoint\n";
		3748	BDB::db_env_txn_checkpoint $DB_ENV;
		3749	warn "emergency_perl_save: end database checkpoint\n";
		3750
		3751	warn "emergency_perl_save: begin write uuid\n";
		3752	write_uuid_sync 1;
		3753	warn "emergency_perl_save: end write uuid\n";
		3754	};
		3755
		3756	warn "emergency_perl_save: starting sync()\n";
		3757	IO::AIO::aio_sync sub {
		3758	warn "emergency_perl_save: finished sync()\n";
		3759	};
		3760
		3761	warn "emergency_perl_save: leave\n";
		3762	}
		3763
		3764	sub post_cleanup {
		3765	my ($make_core) = @_;
		3766
		3767	warn Carp::longmess "post_cleanup backtrace"
		3768	if $make_core;
		3769
		3770	my $fh = pidfile;
		3771	unlink $PIDFILE if <$fh> == $$;
		3772	}
		3773
		3774	# a safer delete_package, copied from Symbol
		3775	sub clear_package($) {
		3776	my $pkg = shift;
		3777
		3778	# expand to full symbol table name if needed
		3779	unless ($pkg =~ /^main::.*::$/) {
		3780	$pkg = "main$pkg" if $pkg =~ /^::/;
		3781	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3782	$pkg .= '::' unless $pkg =~ /::$/;
		3783	}
		3784
		3785	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3786	my $stem_symtab = *{$stem}{HASH};
		3787
		3788	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3789	or return;
		3790
		3791	# clear all symbols
		3792	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3793	for my $name (keys %$leaf_symtab) {
		3794	_gv_clear *{"$pkg$name"};
		3795	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3796	}
		3797	}
		3798
2041	sub reload() {	3799	sub do_reload_perl() {
2042	# can/must only be called in main	3800	# can/must only be called in main
2043	if ($Coro::current != $Coro::main) {	3801	if (in_main) {
2044	warn "can only reload from main coroutine\n";	3802	warn "can only reload from main coroutine";
2045	return;	3803	return;
2046	}	3804	}
2047		3805
		3806	return if $RELOAD++;
		3807
		3808	my $t1 = AE::time;
		3809
		3810	while ($RELOAD) {
2048	warn "reloading...";	3811	warn "reloading...";
2049		3812
2050	my $guard = freeze_mainloop;	3813	warn "entering sync_job";
		3814
		3815	cf::sync_job {
		3816	cf::write_runtime_sync; # external watchdog should not bark
2051	cf::emergency_save;	3817	cf::emergency_save;
		3818	cf::write_runtime_sync; # external watchdog should not bark
2052		3819
2053	eval {	3820	warn "syncing database to disk";
		3821	BDB::db_env_txn_checkpoint $DB_ENV;
		3822
2054	# if anything goes wrong in here, we should simply crash as we already saved	3823	# if anything goes wrong in here, we should simply crash as we already saved
2055		3824
2056	# cancel all watchers	3825	warn "flushing outstanding aio requests";
2057	for (Event::all_watchers) {	3826	while (IO::AIO::nreqs || BDB::nreqs) {
2058	$_->cancel if $_->data & WF_AUTOCANCEL;	3827	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2059	}
2060
2061	# cancel all extension coros
2062	$_->cancel for values %EXT_CORO;
2063	%EXT_CORO = ();
2064
2065	# unload all extensions
2066	for (@exts) {
2067	warn "unloading <$_>";
2068	unload_extension $_;
2069	}
2070
2071	# unload all modules loaded from $LIBDIR
2072	while (my ($k, $v) = each %INC) {
2073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074
2075	warn "removing <$k>";
2076	delete $INC{$k};
2077
2078	$k =~ s/\.pm$//;
2079	$k =~ s/\//::/g;
2080
2081	if (my $cb = $k->can ("unload_module")) {
2082	$cb->();
2083	}	3828	}
2084		3829
2085	Symbol::delete_package $k;	3830	warn "cancelling all extension coros";
		3831	$_->cancel for values %EXT_CORO;
		3832	%EXT_CORO = ();
		3833
		3834	warn "removing commands";
		3835	%COMMAND = ();
		3836
		3837	warn "removing ext/exti commands";
		3838	%EXTCMD = ();
		3839	%EXTICMD = ();
		3840
		3841	warn "unloading/nuking all extensions";
		3842	for my $pkg (@EXTS) {
		3843	warn "... unloading $pkg";
		3844
		3845	if (my $cb = $pkg->can ("unload")) {
		3846	eval {
		3847	$cb->($pkg);
		3848	1
		3849	} or warn "$pkg unloaded, but with errors: $@";
		3850	}
		3851
		3852	warn "... clearing $pkg";
		3853	clear_package $pkg;
2086	}	3854	}
2087		3855
2088	# sync database to disk	3856	warn "unloading all perl modules loaded from $LIBDIR";
2089	cf::db_sync;	3857	while (my ($k, $v) = each %INC) {
2090	IO::AIO::flush;	3858	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2091		3859
		3860	warn "... unloading $k";
		3861	delete $INC{$k};
		3862
		3863	$k =~ s/\.pm$//;
		3864	$k =~ s/\//::/g;
		3865
		3866	if (my $cb = $k->can ("unload_module")) {
		3867	$cb->();
		3868	}
		3869
		3870	clear_package $k;
		3871	}
		3872
2092	# get rid of safe::, as good as possible	3873	warn "getting rid of safe::, as good as possible";
2093	Symbol::delete_package "safe::$_"	3874	clear_package "safe::$_"
2094	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3875	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095		3876
2096	# remove register_script_function callbacks	3877	warn "unloading cf.pm \"a bit\"";
2097	# TODO
2098
2099	# unload cf.pm "a bit"
2100	delete $INC{"cf.pm"};	3878	delete $INC{"cf.pm"};
		3879	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2101		3880
2102	# don't, removes xs symbols, too,	3881	# don't, removes xs symbols, too,
2103	# and global variables created in xs	3882	# and global variables created in xs
2104	#Symbol::delete_package __PACKAGE__;	3883	#clear_package __PACKAGE__;
2105		3884
2106	# reload cf.pm	3885	warn "unload completed, starting to reload now";
		3886
2107	warn "reloading cf.pm";	3887	warn "reloading cf.pm";
2108	require cf;	3888	require cf;
2109	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3889	cf::_connect_to_perl_1;
2110		3890
2111	# load config and database again	3891	warn "loading config and database again";
2112	cf::cfg_load;	3892	cf::reload_config;
2113	cf::db_load;
2114		3893
2115	# load extensions
2116	warn "load extensions";	3894	warn "loading extensions";
2117	cf::load_extensions;	3895	cf::load_extensions;
2118		3896
2119	# reattach attachments to objects	3897	if ($REATTACH_ON_RELOAD) {
		3898	warn "reattaching attachments to objects/players";
		3899	_global_reattach; # objects, sockets
		3900	warn "reattaching attachments to maps";
		3901	reattach $_ for values %MAP;
		3902	warn "reattaching attachments to players";
		3903	reattach $_ for values %PLAYER;
		3904	}
		3905
		3906	warn "running post_init jobs";
		3907	(pop @POST_INIT)->(1) while @POST_INIT;
		3908
		3909	warn "leaving sync_job";
		3910
		3911	1
		3912	} or do {
		3913	warn $@;
		3914	cf::cleanup "error while reloading, exiting.";
		3915	};
		3916
2120	warn "reattach";	3917	warn "reloaded";
2121	_global_reattach;	3918	--$RELOAD;
		3919	}
		3920
		3921	$t1 = AE::time - $t1;
		3922	warn "reload completed in ${t1}s\n";
		3923	};
		3924
		3925	our $RELOAD_WATCHER; # used only during reload
		3926
		3927	sub reload_perl() {
		3928	# doing reload synchronously and two reloads happen back-to-back,
		3929	# coro crashes during coro_state_free->destroy here.
		3930
		3931	$RELOAD_WATCHER ||= cf::async {
		3932	Coro::AIO::aio_wait cache_extensions;
		3933
		3934	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3935	do_reload_perl;
		3936	undef $RELOAD_WATCHER;
		3937	};
2122	};	3938	};
2123
2124	if ($@) {
2125	warn $@;
2126	warn "error while reloading, exiting.";
2127	exit 1;
2128	}
2129
2130	warn "reloaded successfully";
2131	};
2132
2133	#############################################################################
2134
2135	unless ($LINK_MAP) {
2136	$LINK_MAP = cf::map::new;
2137
2138	$LINK_MAP->width (41);
2139	$LINK_MAP->height (41);
2140	$LINK_MAP->alloc;
2141	$LINK_MAP->path ("{link}");
2142	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145	# dirty hack because... archetypes are not yet loaded
2146	Event->timer (
2147	after => 2,
2148	cb => sub {
2149	$_[0]->w->cancel;
2150
2151	# provide some exits "home"
2152	my $exit = cf::object::new "exit";
2153
2154	$exit->slaying ($EMERGENCY_POSITION->[0]);
2155	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158	$LINK_MAP->insert ($exit->clone, 19, 19);
2159	$LINK_MAP->insert ($exit->clone, 19, 20);
2160	$LINK_MAP->insert ($exit->clone, 19, 21);
2161	$LINK_MAP->insert ($exit->clone, 20, 19);
2162	$LINK_MAP->insert ($exit->clone, 20, 21);
2163	$LINK_MAP->insert ($exit->clone, 21, 19);
2164	$LINK_MAP->insert ($exit->clone, 21, 20);
2165	$LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167	$exit->destroy;
2168	});
2169
2170	$LINK_MAP->{deny_save} = 1;
2171	$LINK_MAP->{deny_reset} = 1;
2172
2173	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174	}	3939	}
2175
2176	register "<global>", __PACKAGE__;
2177		3940
2178	register_command "reload" => sub {	3941	register_command "reload" => sub {
2179	my ($who, $arg) = @_;	3942	my ($who, $arg) = @_;
2180		3943
2181	if ($who->flag (FLAG_WIZ)) {	3944	if ($who->flag (FLAG_WIZ)) {
2182	$who->message ("start of reload.");
2183	reload;
2184	$who->message ("end of reload.");	3945	$who->message ("reloading server.");
		3946	async {
		3947	$Coro::current->{desc} = "perl_reload";
		3948	reload_perl;
		3949	};
2185	}	3950	}
2186	};	3951	};
2187		3952
2188	unshift @INC, $LIBDIR;	3953	unshift @INC, $LIBDIR;
2189		3954
2190	$TICK_WATCHER = Event->timer (	3955	my $bug_warning = 0;
2191	reentrant => 0,	3956
2192	prio => 0,	3957	our @WAIT_FOR_TICK;
2193	at => $NEXT_TICK || $TICK,	3958	our @WAIT_FOR_TICK_BEGIN;
2194	data => WF_AUTOCANCEL,	3959
2195	cb => sub {	3960	sub wait_for_tick {
		3961	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3962
		3963	my $signal = new Coro::Signal;
		3964	push @WAIT_FOR_TICK, $signal;
		3965	$signal->wait;
		3966	}
		3967
		3968	sub wait_for_tick_begin {
		3969	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3970
		3971	my $signal = new Coro::Signal;
		3972	push @WAIT_FOR_TICK_BEGIN, $signal;
		3973	$signal->wait;
		3974	}
		3975
		3976	sub tick {
		3977	if ($Coro::current != $Coro::main) {
		3978	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3979	unless ++$bug_warning > 10;
		3980	return;
		3981	}
		3982
2196	cf::server_tick; # one server iteration	3983	cf::server_tick; # one server iteration
2197	$RUNTIME += $TICK;
2198	$NEXT_TICK += $TICK;
2199		3984
2200	# if we are delayed by four ticks or more, skip them all	3985	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2201	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2202		3986
2203	$TICK_WATCHER->at ($NEXT_TICK);	3987	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2204	$TICK_WATCHER->start;	3988	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2205	},	3989	Coro::async_pool {
2206	);	3990	$Coro::current->{desc} = "runtime saver";
2207
2208	IO::AIO::max_poll_time $TICK * 0.2;
2209
2210	Event->io (
2211	fd => IO::AIO::poll_fileno,
2212	poll => 'r',
2213	prio => 5,
2214	data => WF_AUTOCANCEL,
2215	cb => \&IO::AIO::poll_cb,
2216	);
2217
2218	Event->timer (
2219	data => WF_AUTOCANCEL,
2220	after => 0,
2221	interval => 10,
2222	cb => sub {
2223	(Coro::unblock_sub {
2224	write_runtime	3991	write_runtime_sync
2225	or warn "ERROR: unable to write runtime file: $!";	3992	or warn "ERROR: unable to write runtime file: $!";
2226	})->();	3993	};
2227	},	3994	}
2228	);	3995
		3996	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3997	$sig->send;
		3998	}
		3999	while (my $sig = shift @WAIT_FOR_TICK) {
		4000	$sig->send;
		4001	}
		4002
		4003	$LOAD = ($NOW - $TICK_START) / $TICK;
		4004	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4005
		4006	if (0) {
		4007	if ($NEXT_TICK) {
		4008	my $jitter = $TICK_START - $NEXT_TICK;
		4009	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4010	warn "jitter $JITTER\n";#d#
		4011	}
		4012	}
		4013	}
		4014
		4015	{
		4016	# configure BDB
		4017
		4018	BDB::min_parallel 16;
		4019	BDB::max_poll_reqs $TICK * 0.1;
		4020	$AnyEvent::BDB::WATCHER->priority (1);
		4021
		4022	unless ($DB_ENV) {
		4023	$DB_ENV = BDB::db_env_create;
		4024	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4025	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4026	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4027	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4028	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4029
		4030	cf::sync_job {
		4031	eval {
		4032	BDB::db_env_open
		4033	$DB_ENV,
		4034	$BDBDIR,
		4035	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4036	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4037	0666;
		4038
		4039	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4040	};
		4041
		4042	cf::cleanup "db_env_open(db): $@" if $@;
		4043	};
		4044	}
		4045
		4046	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4047	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4048	};
		4049	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4050	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4051	};
		4052	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4053	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4054	};
		4055	}
		4056
		4057	{
		4058	# configure IO::AIO
		4059
		4060	IO::AIO::min_parallel 8;
		4061	IO::AIO::max_poll_time $TICK * 0.1;
		4062	undef $AnyEvent::AIO::WATCHER;
		4063	}
		4064
		4065	my $_log_backtrace;
		4066
		4067	sub _log_backtrace {
		4068	my ($msg, @addr) = @_;
		4069
		4070	$msg =~ s/\n//;
		4071
		4072	# limit the # of concurrent backtraces
		4073	if ($_log_backtrace < 2) {
		4074	++$_log_backtrace;
		4075	my $perl_bt = Carp::longmess $msg;
		4076	async {
		4077	$Coro::current->{desc} = "abt $msg";
		4078
		4079	my @bt = fork_call {
		4080	@addr = map { sprintf "%x", $_ } @addr;
		4081	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4082	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4083	or die "addr2line: $!";
		4084
		4085	my @funcs;
		4086	my @res = <$fh>;
		4087	chomp for @res;
		4088	while (@res) {
		4089	my ($func, $line) = splice @res, 0, 2, ();
		4090	push @funcs, "[$func] $line";
		4091	}
		4092
		4093	@funcs
		4094	};
		4095
		4096	LOG llevInfo, "[ABT] $perl_bt\n";
		4097	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4098	LOG llevInfo, "[ABT] $_\n" for @bt;
		4099	--$_log_backtrace;
		4100	};
		4101	} else {
		4102	LOG llevInfo, "[ABT] $msg\n";
		4103	LOG llevInfo, "[ABT] [suppressed]\n";
		4104	}
		4105	}
		4106
		4107	# load additional modules
		4108	require "cf/$_.pm" for @EXTRA_MODULES;
		4109	cf::_connect_to_perl_2;
2229		4110
2230	END { cf::emergency_save }	4111	END { cf::emergency_save }
2231		4112
2232	1	4113	1
2233		4114

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