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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.122 by root, Tue Jan 2 17:32:24 2007 UTC vs.
Revision 1.527 by root, Fri Apr 23 04:32:47 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 = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 0;#d#
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	139	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	140
56	our %EXT_CORO;	141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
57		153
58	binmode STDOUT;	154	binmode STDOUT;
59	binmode STDERR;	155	binmode STDERR;
60		156
61	# read virtual server time, if available	157	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
66	}	162	}
67		163
68	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		165
74	# a special map that is always available	166	mkdir $_
75	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		168
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		187
79	#############################################################################	188	#############################################################################
80		189
81	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
82		191
…		…
89	=item $cf::RUNTIME	198	=item $cf::RUNTIME
90		199
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	201	every server tick.
93		202
94	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		206
96	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
98		211
99	=item $cf::NOW	212	=item $cf::NOW
100		213
101	The time of the last (current) server tick.	214	The time of the last (current) server tick.
102		215
103	=item $cf::TICK	216	=item $cf::TICK
104		217
105	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
106		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
107	=item %cf::CFG	230	=item %cf::CFG
108		231
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	233	from wherever your confdir points to.
111		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
112	=back	253	=back
113		254
114	=cut	255	=cut
115		256
116	BEGIN {	257	$Coro::State::WARNHOOK = sub {
117	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	258	my $msg = join "", @_;
119	utf8::encode $msg;
120		259
121	$msg .= "\n"	260	$msg .= "\n"
122	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
123		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
124	LOG llevError, "cfperl: $msg";	265	LOG llevError, $msg;
125	};	266	};
126	}	267
		268	$Coro::State::DIEHOOK = sub {
		269	return unless $^S eq 0; # "eq", not "=="
		270
		271	warn Carp::longmess $_[0];
		272
		273	if (in_main) {#d#
		274	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		275	return;#d#
		276	}#d#
		277
		278	# kill coroutine otherwise
		279	Coro::terminate
		280	};
127		281
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	286	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		287	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	288	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		289
135	# we bless all objects into (empty) derived classes to force a method lookup	290	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	291	# within the Safe compartment.
137	for my $pkg (qw(	292	for my $pkg (qw(
138	cf::global cf::attachable	293	cf::global cf::attachable
139	cf::object cf::object::player	294	cf::object cf::object::player
140	cf::client cf::player	295	cf::client cf::player
141	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
142	cf::map cf::party cf::region	298	cf::party cf::region
143	)) {	299	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	301	}
147		302
148	$Event::DIED = sub {	303	$EV::DIED = sub {
149	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
150	};	305	};
151		306
152	my %ext_pkg;	307	#############################################################################
153	my @exts;
154	my @hook;
155		308
156	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
157		310
158	=over 4	311	=over 4
159		312
160	=cut	313	=item dumpval $ref
161		314
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	315	=cut
163		316
		317	sub dumpval {
		318	eval {
		319	local $SIG{__DIE__};
		320	my $d;
		321	if (1) {
		322	$d = new Data::Dumper([$_[0]], ["*var"]);
		323	$d->Terse(1);
		324	$d->Indent(2);
		325	$d->Quotekeys(0);
		326	$d->Useqq(1);
		327	#$d->Bless(...);
		328	$d->Seen($_[1]) if @_ > 1;
		329	$d = $d->Dump();
		330	}
		331	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		332	$d
		333	} || "[unable to dump $_[0]: '$@']";
		334	}
		335
164	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
165		337
166	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
167		339
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
176		341
177	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
178		343
179	=cut	344	=cut
180		345
181	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		347
186	=item my $guard = cf::guard { BLOCK }	348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
187		350
188	Run the given callback when the guard object gets destroyed (useful for	351	=item cf::post_init { BLOCK }
189	coroutine cancellations).
190		352
191	You can call C<< ->cancel >> on the guard object to stop the block from	353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
192	being executed.	354	but I<before> the server starts ticking again.
193		355
194	=cut	356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
195		358
196	sub guard(&) {	359	=cut
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199		360
200	sub cf::guard::cancel {	361	sub post_init(&) {
201	${$_[0]} = sub { };	362	push @POST_INIT, shift;
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}	363	}
207		364
208	=item cf::lock_wait $string	365	=item cf::lock_wait $string
209		366
210	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
211		368
212	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
213		370
214	Wait until the given lock is available and then acquires it and returns	371	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	372	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
217	returned.	374	returned.
218		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
219	Lock names should begin with a unique identifier (for example, find_map	379	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	380	uses map_find and cf::map::load uses map_load).
221		381
222	=cut	382	=item $locked = cf::lock_active $string
223		383
224	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
225		389
226	sub lock_wait($) {	390	sub lock_wait($) {
227	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
228
229	# wait for lock, if any
230	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;
233	}
234	}	392	}
235		393
236	sub lock_acquire($) {	394	sub lock_acquire($) {
237	my ($key) = @_;	395	$LOCKS->guard ($_[0])
238
239	# wait, to be sure we are not locked
240	lock_wait $key;
241
242	$LOCK{$key} = [];
243
244	cf::guard {
245	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };
247	}
248	}	396	}
		397
		398	sub lock_active($) {
		399	$LOCKS->count ($_[0]) < 1
		400	}
		401
		402	sub freeze_mainloop {
		403	tick_inhibit_inc;
		404
		405	&Guard::guard (\&tick_inhibit_dec);
		406	}
		407
		408	=item cf::periodic $interval, $cb
		409
		410	Like EV::periodic, but randomly selects a starting point so that the actions
		411	get spread over time.
		412
		413	=cut
		414
		415	sub periodic($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
		472	}
		473	};
		474
		475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
		488	}
		489
		490	=item cf::async { BLOCK }
		491
		492	Currently the same as Coro::async_pool, meaning you cannot use
		493	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		494	thing you are allowed to do is call C<prio> on it.
		495
		496	=cut
		497
		498	BEGIN { *async = \&Coro::async_pool }
249		499
250	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
251		501
252	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
255		506
256	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
259	fast or be very important.	510	fast or be very important.
…		…
262		513
263	sub sync_job(&) {	514	sub sync_job(&) {
264	my ($job) = @_;	515	my ($job) = @_;
265		516
266	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
267	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
269		522
270	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	524
272	local $FREEZE = 1;	525	my $freeze_guard = freeze_mainloop;
273		526
274	my $busy = 1;	527	my $busy = 1;
275	my @res;	528	my @res;
276		529
277	(Coro::async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	532	@res = eval { $job->() };
279	warn $@ if $@;	533	warn $@ if $@;
280	undef $busy;	534	undef $busy;
281	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
282		536
283	while ($busy) {	537	while ($busy) {
		538	if (Coro::nready) {
284	Coro::cede_notself;	539	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
286	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
287		548
288	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
289	} else {	550	} else {
290	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
291		552
292	$job->()	553	$job->()
293	}	554	}
294	}	555	}
295		556
296	=item $coro = cf::coro { BLOCK }	557	=item $coro = cf::async_ext { BLOCK }
297		558
298	Creates and returns a new coro. This coro is automcatially being canceled	559	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	560	extension calling this is being unloaded.
300		561
301	=cut	562	=cut
302		563
303	sub coro(&) {	564	sub async_ext(&) {
304	my $cb = shift;	565	my $cb = shift;
305		566
306	my $coro; $coro = async {	567	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		568
313	$coro->on_destroy (sub {	569	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	570	delete $EXT_CORO{$coro+0};
315	});	571	});
316	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
317		573
318	$coro	574	$coro
319	}	575	}
320		576
321	sub write_runtime {	577	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		578
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
325	or return;	580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
326		583
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	584	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		585
331	aio_fsync $fh	586	sub fork_call(&@) {
332	and return;	587	my ($cb, @args) = @_;
333		588
334	close $fh	589	# we seemingly have to make a local copy of the whole thing,
335	or return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
336		592
337	aio_rename "$runtime~", $runtime	593	my @res = Coro::Util::fork_eval {
338	and return;	594	reset_signals;
		595	&$cb
		596	}, @args;
339		597
		598	wantarray ? @res : $res[-1]
		599	}
		600
		601	sub objinfo {
340	1	602	(
		603	"counter value" => cf::object::object_count,
		604	"objects created" => cf::object::create_count,
		605	"objects destroyed" => cf::object::destroy_count,
		606	"freelist size" => cf::object::free_count,
		607	"allocated objects" => cf::object::objects_size,
		608	"active objects" => cf::object::actives_size,
		609	)
		610	}
		611
		612	=item $coin = coin_from_name $name
		613
		614	=cut
		615
		616	our %coin_alias = (
		617	"silver" => "silvercoin",
		618	"silvercoin" => "silvercoin",
		619	"silvercoins" => "silvercoin",
		620	"gold" => "goldcoin",
		621	"goldcoin" => "goldcoin",
		622	"goldcoins" => "goldcoin",
		623	"platinum" => "platinacoin",
		624	"platinumcoin" => "platinacoin",
		625	"platinumcoins" => "platinacoin",
		626	"platina" => "platinacoin",
		627	"platinacoin" => "platinacoin",
		628	"platinacoins" => "platinacoin",
		629	"royalty" => "royalty",
		630	"royalties" => "royalty",
		631	);
		632
		633	sub coin_from_name($) {
		634	$coin_alias{$_[0]}
		635	? cf::arch::find $coin_alias{$_[0]}
		636	: undef
		637	}
		638
		639	=item $value = cf::db_get $family => $key
		640
		641	Returns a single value from the environment database.
		642
		643	=item cf::db_put $family => $key => $value
		644
		645	Stores the given C<$value> in the family. It can currently store binary
		646	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		647
		648	=item $db = cf::db_table "name"
		649
		650	Create and/or open a new database table. The string must not be "db" and must be unique
		651	within each server.
		652
		653	=cut
		654
		655	sub db_table($) {
		656	my ($name) = @_;
		657	my $db = BDB::db_create $DB_ENV;
		658
		659	eval {
		660	$db->set_flags (BDB::CHKSUM);
		661
		662	utf8::encode $name;
		663	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		664	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		665	cf::cleanup "db_open(db): $!" if $!;
		666	};
		667	cf::cleanup "db_open(db): $@" if $@;
		668
		669	$db
		670	}
		671
		672	our $DB;
		673
		674	sub db_init {
		675	cf::sync_job {
		676	$DB ||= db_table "db";
		677	};
		678	}
		679
		680	sub db_get($$) {
		681	my $key = "$_[0]/$_[1]";
		682
		683	cf::sync_job {
		684	BDB::db_get $DB, undef, $key, my $data;
		685
		686	$! ? ()
		687	: $data
		688	}
		689	}
		690
		691	sub db_put($$$) {
		692	BDB::dbreq_pri 4;
		693	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		694	}
		695
		696	=item cf::cache $id => [$paths...], $processversion => $process
		697
		698	Generic caching function that returns the value of the resource $id,
		699	caching and regenerating as required.
		700
		701	This function can block.
		702
		703	=cut
		704
		705	sub cache {
		706	my ($id, $src, $processversion, $process) = @_;
		707
		708	my $meta =
		709	join "\x00",
		710	$processversion,
		711	map {
		712	aio_stat $_
		713	and Carp::croak "$_: $!";
		714
		715	($_, (stat _)[7,9])
		716	} @$src;
		717
		718	my $dbmeta = db_get cache => "$id/meta";
		719	if ($dbmeta ne $meta) {
		720	# changed, we may need to process
		721
		722	my @data;
		723	my $md5;
		724
		725	for (0 .. $#$src) {
		726	0 <= aio_load $src->[$_], $data[$_]
		727	or Carp::croak "$src->[$_]: $!";
		728	}
		729
		730	# if processing is expensive, check
		731	# checksum first
		732	if (1) {
		733	$md5 =
		734	join "\x00",
		735	$processversion,
		736	map {
		737	cf::cede_to_tick;
		738	($src->[$_], Digest::MD5::md5_hex $data[$_])
		739	} 0.. $#$src;
		740
		741
		742	my $dbmd5 = db_get cache => "$id/md5";
		743	if ($dbmd5 eq $md5) {
		744	db_put cache => "$id/meta", $meta;
		745
		746	return db_get cache => "$id/data";
		747	}
		748	}
		749
		750	my $t1 = Time::HiRes::time;
		751	my $data = $process->(\@data);
		752	my $t2 = Time::HiRes::time;
		753
		754	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		755
		756	db_put cache => "$id/data", $data;
		757	db_put cache => "$id/md5" , $md5;
		758	db_put cache => "$id/meta", $meta;
		759
		760	return $data;
		761	}
		762
		763	db_get cache => "$id/data"
		764	}
		765
		766	=item cf::datalog type => key => value, ...
		767
		768	Log a datalog packet of the given type with the given key-value pairs.
		769
		770	=cut
		771
		772	sub datalog($@) {
		773	my ($type, %kv) = @_;
		774	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	775	}
342		776
343	=back	777	=back
344		778
345	=cut	779	=cut
346		780
347	#############################################################################	781	#############################################################################
348		782
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466
467	#############################################################################
468
469	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
470		784
471	Many objects in crossfire are so-called attachable objects. That means you can	785	Many objects in deliantra are so-called attachable objects. That means you can
472	attach callbacks/event handlers (a collection of which is called an "attachment")	786	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
474		788
475	In the following description, CLASS can be any of C<global>, C<object>	789	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	790	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	791	Deliantra).
478		792
479	=over 4	793	=over 4
480		794
481	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
482		796
…		…
526	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
527		841
528	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
529	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
530		844
531	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
532	that are attached at load/instantiate time, thus the need for a name.	846	that are attached at load/instantiate time, thus the need for a name.
533		847
534	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
535		849
536	=over 4	850	=over 4
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	910	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	911	our @CB_MAP = ();
598		912
599	my %attachment;	913	my %attachment;
600		914
		915	sub cf::attachable::thawer_merge {
		916	# simply override everything except _meta
		917	local $_[0]{_meta};
		918	%{$_[0]} = %{$_[1]};
		919	}
		920
601	sub _attach_cb($$$$) {	921	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	922	my ($registry, $event, $prio, $cb) = @_;
603		923
604	use sort 'stable';	924	use sort 'stable';
605		925
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
640		960
641	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		965
646	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	967	my $pkg = shift @arg;
648		968
649	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
679	}	999	}
680		1000
681	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
682	} else {	1002	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	1004	}
685		1005
686	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
687	}	1007	}
688		1008
…		…
690	if (ref $_[0]) {	1010	if (ref $_[0]) {
691	_object_attach @_;	1011	_object_attach @_;
692	} else {	1012	} else {
693	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
694	}	1014	}
		1015	_recalc_want;
695	};	1016	};
696		1017
697	# all those should be optimised	1018	# all those should be optimised
698	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
703	reattach ($obj);	1024	reattach ($obj);
704	} else {	1025	} else {
705	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
706	}	1027	}
		1028	_recalc_want;
707	};	1029	};
708		1030
709	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
711		1033
…		…
726	";	1048	";
727	die if $@;	1049	die if $@;
728	}	1050	}
729		1051
730	our $override;	1052	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1053	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		1054
733	sub override {	1055	sub override {
734	$override = 1;	1056	$override = 1;
735	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
736	}	1058	}
737		1059
738	sub do_invoke {	1060	sub do_invoke {
739	my $event = shift;	1061	my $event = shift;
740	my $callbacks = shift;	1062	my $callbacks = shift;
741		1063
742	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
743		1065
744	local $override;	1066	local $override;
745		1067
746	for (@$callbacks) {	1068	for (@$callbacks) {
747	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
756	}	1078	}
757		1079
758	0	1080	0
759	}	1081	}
760		1082
761	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
762		1084
763	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
764		1086
765	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
766		1088
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1089	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	1090	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		1092
771	=back	1093	=back
772		1094
773	=cut	1095	=cut
774		1096
775	#############################################################################	1097	#############################################################################
776	# object support	1098	# object support
		1099
		1100	sub _object_equal($$);
		1101	sub _object_equal($$) {
		1102	my ($a, $b) = @_;
		1103
		1104	return 0 unless (ref $a) eq (ref $b);
		1105
		1106	if ("HASH" eq ref $a) {
		1107	my @ka = keys %$a;
		1108	my @kb = keys %$b;
		1109
		1110	return 0 if @ka != @kb;
		1111
		1112	for (0 .. $#ka) {
		1113	return 0 unless $ka[$_] eq $kb[$_];
		1114	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1115	}
		1116
		1117	} elsif ("ARRAY" eq ref $a) {
		1118
		1119	return 0 if @$a != @$b;
		1120
		1121	for (0 .. $#$a) {
		1122	return 0 unless _object_equal $a->[$_], $b->[$_];
		1123	}
		1124
		1125	} elsif ($a ne $b) {
		1126	return 0;
		1127	}
		1128
		1129	1
		1130	}
		1131
		1132	our $SLOW_MERGES;#d#
		1133	sub _can_merge {
		1134	my ($ob1, $ob2) = @_;
		1135
		1136	++$SLOW_MERGES;#d#
		1137
		1138	# we do the slow way here
		1139	return _object_equal $ob1, $ob2
		1140	}
777		1141
778	sub reattach {	1142	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	1144	my ($obj) = @_;
		1145
		1146	# no longer needed after getting rid of delete_package?
		1147	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		1148
782	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
783		1150
784	@$registry = ();	1151	@$registry = ();
785		1152
…		…
800	cf::attachable->attach (	1167	cf::attachable->attach (
801	prio => -1000000,	1168	prio => -1000000,
802	on_instantiate => sub {	1169	on_instantiate => sub {
803	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
804		1171
805	$data = from_json $data;	1172	$data = decode_json $data;
806		1173
807	for (@$data) {	1174	for (@$data) {
808	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
809		1176
810	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1193	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
828		1195
829	sync_job {	1196	sync_job {
830	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
833		1202
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1206	if ($cf::USE_FSYNC) {
		1207	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
837	aio_fsync $fh;	1208	aio_fsync $fh;
		1209	}
838	close $fh;	1210	aio_close $fh;
839		1211
840	if (@$objs) {	1212	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1213	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
		1217	if ($cf::USE_FSYNC) {
		1218	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
845	aio_fsync $fh;	1219	aio_fsync $fh;
		1220	}
846	close $fh;	1221	aio_close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
848	}	1223	}
849	} else {	1224	} else {
850	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
851	}	1226	}
852		1227
853	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
854	} else {	1232	} else {
855	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
856	}	1234	}
857	} else {	1235	} else {
858	aio_unlink $filename;	1236	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
860	}	1238	}
861	}	1239	};
862	}	1240	}
863		1241
864	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
866		1244
…		…
878	or return;	1256	or return;
879		1257
880	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
882	or return;	1260	or return;
		1261
883	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
884	}	1264	}
885		1265
		1266	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
888	return ($data, $av);	1271	($data, $av)
889	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
890		1279
891	#############################################################################	1280	#############################################################################
892	# command handling &c	1281	# command handling &c
893		1282
894	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1297	}
909		1298
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1300
912	Register a callbackf ro execution when the client sends an extcmd packet.	1301	Register a callback for execution when the client sends an (synchronous)
		1302	extcmd packet. Ext commands will be processed in the order they are
		1303	received by the server, like other user commands. The first argument is
		1304	the logged-in player. Ext commands can only be processed after a player
		1305	has logged in successfully.
913		1306
914	If the callback returns something, it is sent back as if reply was being	1307	If the callback returns something, it is sent back as if reply was being
915	called.	1308	called.
916		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
917	=cut	1321	=cut
918		1322
919	sub register_extcmd {	1323	sub register_extcmd {
920	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
921		1325
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1326	$EXTCMD{$name} = $cb;
926	}	1327	}
		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
927		1336
928	cf::player->attach (	1337	cf::player->attach (
929	on_command => sub {	1338	on_unknown_command => sub {
930	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
931		1340
932	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
933	or return;	1342	or return;
934		1343
…		…
939	cf::override;	1348	cf::override;
940	},	1349	},
941	on_extcmd => sub {	1350	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
943		1352
944	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1354
946	if (ref $msg) {	1355	if (ref $msg) {
		1356	my ($type, $reply, @payload) =
		1357	"ARRAY" eq ref $msg
		1358	? @$msg
		1359	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1360
		1361	my @reply;
		1362
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
952	} else {	1370	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1372	}
955		1373
956	cf::override;	1374	cf::override;
957	},	1375	},
958	);	1376	);
959		1377
960	sub register {	1378	# "readahead" all extensions
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1379	sub cache_extensions {
967	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
968		1381
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
970	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
971	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974
975	warn "loading '$path' into '$pkg'\n";
976
977	open my $fh, "<:utf8", $path
978	or die "$path: $!";
979
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }
1009
1010	# remove commands
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}	1385	}
1019	}	1386	};
1020		1387
1021	# remove extcmds	1388	$grp
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	1389	}
1035		1390
1036	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
1037	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	1396	next unless -r $path;
1039	eval {	1397
1040	load_extension $ext;	1398	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1399	my $base = $1;
		1400	my $pkg = $1;
		1401	$pkg =~ s/[^[:word:]]/_/g;
		1402	$pkg = "ext::$pkg";
		1403
		1404	open my $fh, "<:utf8", $path
		1405	or die "$path: $!";
		1406
		1407	my $source = do { local $/; <$fh> };
		1408
		1409	my %ext = (
		1410	path => $path,
		1411	base => $base,
		1412	pkg => $pkg,
		1413	);
		1414
		1415	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1416	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1417
		1418	$ext{source} =
		1419	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1420	. "#line 1 \"$path\"\n{\n"
		1421	. $source
		1422	. "\n};\n1";
		1423
		1424	$todo{$base} = \%ext;
		1425	}
		1426
		1427	my $pass = 0;
		1428	my %done;
		1429	while (%todo) {
		1430	my $progress;
		1431
		1432	++$pass;
		1433
		1434	ext:
		1435	while (my ($k, $v) = each %todo) {
		1436	for (split /,\s*/, $v->{meta}{depends}) {
		1437	next ext
		1438	unless exists $done{$_};
		1439	}
		1440
		1441	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1442
		1443	my $active = eval $v->{source};
		1444
		1445	if (length $@) {
		1446	warn "$v->{path}: $@\n";
		1447
		1448	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1449	if exists $v->{meta}{mandatory};
		1450
		1451	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1452	delete $todo{$k};
		1453	} else {
		1454	$done{$k} = delete $todo{$k};
		1455	push @EXTS, $v->{pkg};
		1456	$progress = 1;
		1457
		1458	warn "$v->{base}: extension inactive.\n"
		1459	unless $active;
		1460	}
1041	1	1461	}
1042	} or warn "$ext not loaded: $@";	1462
		1463	unless ($progress) {
		1464	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1465
		1466	while (my ($k, $v) = each %todo) {
		1467	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1468	if exists $v->{meta}{mandatory};
		1469	}
		1470	}
		1471	}
1043	}	1472	};
1044	}	1473	}
1045		1474
1046	#############################################################################	1475	#############################################################################
1047	# load/save/clean perl data associated with a map
1048		1476
1049	*cf::mapsupport::on_clean = sub {	1477	=back
		1478
		1479	=head2 CORE EXTENSIONS
		1480
		1481	Functions and methods that extend core deliantra objects.
		1482
		1483	=cut
		1484
		1485	package cf::player;
		1486
		1487	use Coro::AIO;
		1488
		1489	=head3 cf::player
		1490
		1491	=over 4
		1492
		1493	=item cf::player::num_playing
		1494
		1495	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1496
		1497	=cut
		1498
		1499	sub num_playing {
		1500	scalar grep
		1501	$_->ob->map
		1502	&& !$_->hidden
		1503	&& !$_->ob->flag (cf::FLAG_WIZ),
		1504	cf::player::list
		1505	}
		1506
		1507	=item cf::player::find $login
		1508
		1509	Returns the given player object, loading it if necessary (might block).
		1510
		1511	=cut
		1512
		1513	sub playerdir($) {
		1514	"$PLAYERDIR/"
		1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1516	}
		1517
		1518	sub path($) {
		1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1520
		1521	(playerdir $login) . "/playerdata"
		1522	}
		1523
		1524	sub find_active($) {
		1525	$cf::PLAYER{$_[0]}
		1526	and $cf::PLAYER{$_[0]}->active
		1527	and $cf::PLAYER{$_[0]}
		1528	}
		1529
		1530	sub exists($) {
1050	my ($map) = @_;	1531	my ($login) = @_;
1051		1532
1052	my $path = $map->tmpname;	1533	$cf::PLAYER{$login}
1053	defined $path or return;	1534	or !aio_stat path $login
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}	1535	}
1066		1536
1067	# TODO: compatibility cruft, remove when no longer needed	1537	sub find($) {
		1538	return $cf::PLAYER{$_[0]} || do {
		1539	my $login = $_[0];
		1540
		1541	my $guard = cf::lock_acquire "user_find:$login";
		1542
		1543	$cf::PLAYER{$_[0]} || do {
		1544	# rename old playerfiles to new ones
		1545	#TODO: remove when no longer required
		1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1549	aio_unlink +(playerdir $login) . "/$login.pl";
		1550
		1551	my $f = new_from_file cf::object::thawer path $login
		1552	or return;
		1553
		1554	my $pl = cf::player::load_pl $f
		1555	or return;
		1556
		1557	local $cf::PLAYER_LOADING{$login} = $pl;
		1558	$f->resolve_delayed_derefs;
		1559	$cf::PLAYER{$login} = $pl
		1560	}
		1561	}
		1562	}
		1563
1068	cf::player->attach (	1564	cf::player->attach (
1069	on_load => sub {	1565	on_load => sub {
1070	my ($pl, $path) = @_;	1566	my ($pl, $path) = @_;
1071		1567
1072	for my $o (all_objects $pl->ob) {	1568	# restore slots saved in save, below
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1569	my $slots = delete $pl->{_slots};
1074	$o->set_ob_key_value ("_perl_data");
1075		1570
1076	%$o = %{ Storable::thaw pack "H*", $value };	1571	$pl->ob->current_weapon ($slots->[0]);
1077	}	1572	$pl->combat_ob ($slots->[1]);
1078	}	1573	$pl->ranged_ob ($slots->[2]);
1079	},	1574	},
1080	);	1575	);
1081		1576
1082	#############################################################################	1577	sub save($) {
		1578	my ($pl) = @_;
1083		1579
1084	=head2 CORE EXTENSIONS	1580	return if $pl->{deny_save};
1085		1581
1086	Functions and methods that extend core crossfire objects.	1582	my $path = path $pl;
		1583	my $guard = cf::lock_acquire "user_save:$path";
1087		1584
1088	=head3 cf::player	1585	return if $pl->{deny_save};
		1586
		1587	aio_mkdir playerdir $pl, 0770;
		1588	$pl->{last_save} = $cf::RUNTIME;
		1589
		1590	cf::get_slot 0.01;
		1591
		1592	# save slots, to be restored later
		1593	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1594
		1595	$pl->save_pl ($path);
		1596	cf::cede_to_tick;
		1597	}
		1598
		1599	sub new($) {
		1600	my ($login) = @_;
		1601
		1602	my $self = create;
		1603
		1604	$self->ob->name ($login);
		1605	$self->{deny_save} = 1;
		1606
		1607	$cf::PLAYER{$login} = $self;
		1608
		1609	$self
		1610	}
		1611
		1612	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1613
		1614	=cut
		1615
		1616	sub send_msg {
		1617	my $ns = shift->ns
		1618	or return;
		1619	$ns->send_msg (@_);
		1620	}
		1621
		1622	=item $pl->quit_character
		1623
		1624	Nukes the player without looking back. If logged in, the connection will
		1625	be destroyed. May block for a long time.
		1626
		1627	=cut
		1628
		1629	sub quit_character {
		1630	my ($pl) = @_;
		1631
		1632	my $name = $pl->ob->name;
		1633
		1634	$pl->{deny_save} = 1;
		1635	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1636
		1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1640	$pl->ob->check_score;
		1641	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1642	$pl->ns->destroy if $pl->ns;
		1643
		1644	my $path = playerdir $pl;
		1645	my $temp = "$path~$cf::RUNTIME~deleting~";
		1646	aio_rename $path, $temp;
		1647	delete $cf::PLAYER{$pl->ob->name};
		1648	$pl->destroy;
		1649
		1650	my $prefix = qr<^~\Q$name\E/>;
		1651
		1652	# nuke player maps
		1653	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1654
		1655	IO::AIO::aio_rmtree $temp;
		1656	}
		1657
		1658	=item $pl->kick
		1659
		1660	Kicks a player out of the game. This destroys the connection.
		1661
		1662	=cut
		1663
		1664	sub kick {
		1665	my ($pl, $kicker) = @_;
		1666
		1667	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1668	$pl->killer ("kicked");
		1669	$pl->ns->destroy;
		1670	}
		1671
		1672	=item cf::player::list_logins
		1673
		1674	Returns am arrayref of all valid playernames in the system, can take a
		1675	while and may block, so not sync_job-capable, ever.
		1676
		1677	=cut
		1678
		1679	sub list_logins {
		1680	my $dirs = aio_readdir $PLAYERDIR
		1681	or return [];
		1682
		1683	my @logins;
		1684
		1685	for my $login (@$dirs) {
		1686	my $path = path $login;
		1687
		1688	# a .pst is a dead give-away for a valid player
		1689	# if no pst file found, open and chekc for blocked users
		1690	if (aio_stat "$path.pst") {
		1691	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1692	aio_read $fh, 0, 512, my $buf, 0 or next;
		1693	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1694	}
		1695
		1696	utf8::decode $login;
		1697	push @logins, $login;
		1698	}
		1699
		1700	\@logins
		1701	}
		1702
		1703	=item $player->maps
		1704
		1705	=item cf::player::maps $login
		1706
		1707	Returns an arrayref of map paths that are private for this
		1708	player. May block.
		1709
		1710	=cut
		1711
		1712	sub maps($) {
		1713	my ($pl) = @_;
		1714
		1715	$pl = ref $pl ? $pl->ob->name : $pl;
		1716
		1717	my $files = aio_readdir playerdir $pl
		1718	or return;
		1719
		1720	my @paths;
		1721
		1722	for (@$files) {
		1723	utf8::decode $_;
		1724	next if /\.(?:pl|pst)$/;
		1725	next unless /^$PATH_SEP/o;
		1726
		1727	push @paths, cf::map::normalise "~$pl/$_";
		1728	}
		1729
		1730	\@paths
		1731	}
		1732
		1733	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1734
		1735	Expand deliantra pod fragments into protocol xml.
		1736
		1737	=item $player->ext_reply ($msgid, @msg)
		1738
		1739	Sends an ext reply to the player.
		1740
		1741	=cut
		1742
		1743	sub ext_reply($$@) {
		1744	my ($self, $id, @msg) = @_;
		1745
		1746	$self->ns->ext_reply ($id, @msg)
		1747	}
		1748
		1749	=item $player->ext_msg ($type, @msg)
		1750
		1751	Sends an ext event to the client.
		1752
		1753	=cut
		1754
		1755	sub ext_msg($$@) {
		1756	my ($self, $type, @msg) = @_;
		1757
		1758	$self->ns->ext_msg ($type, @msg);
		1759	}
		1760
		1761	=head3 cf::region
1089		1762
1090	=over 4	1763	=over 4
1091		1764
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut	1765	=cut
1097		1766
1098	sub cf::player::exists($) {	1767	package cf::region;
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102		1768
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1769	=item cf::region::find_by_path $path
1104		1770
1105	Sends an ext reply to the player.	1771	Tries to decuce the likely region for a map knowing only its path.
1106		1772
1107	=cut	1773	=cut
1108		1774
1109	sub cf::player::ext_reply($$$%) {	1775	sub find_by_path($) {
1110	my ($self, $id, %msg) = @_;	1776	my ($path) = @_;
1111		1777
1112	$msg{msgid} = $id;	1778	$path =~ s/^~[^\/]*//; # skip ~login
1113		1779
1114	$self->send ("ext " . to_json \%msg);	1780	my ($match, $specificity);
		1781
		1782	for my $region (list) {
		1783	if ($region->{match} && $path =~ $region->{match}) {
		1784	($match, $specificity) = ($region, $region->specificity)
		1785	if $region->specificity > $specificity;
		1786	}
		1787	}
		1788
		1789	$match
1115	}	1790	}
1116		1791
1117	=back	1792	=back
1118
1119		1793
1120	=head3 cf::map	1794	=head3 cf::map
1121		1795
1122	=over 4	1796	=over 4
1123		1797
…		…
1126	package cf::map;	1800	package cf::map;
1127		1801
1128	use Fcntl;	1802	use Fcntl;
1129	use Coro::AIO;	1803	use Coro::AIO;
1130		1804
		1805	use overload
		1806	'""' => \&as_string,
		1807	fallback => 1;
		1808
1131	our $MAX_RESET = 7200;	1809	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1810	our $DEFAULT_RESET = 3000;
1133		1811
1134	sub generate_random_map {	1812	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1813	my ($self, $rmp) = @_;
		1814
		1815	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1136		1816
1137	# mit "rum" bekleckern, nicht	1817	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1818	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1819	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1820	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1821	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1822	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1823	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1824	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1825	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1826	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1827	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1828	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1829	(cf::region::find $rmp->{region}), $rmp->{custom}
		1830	)
1151	}	1831	}
1152		1832
1153	# and all this just because we cannot iterate over	1833	=item cf::map->register ($regex, $prio)
1154	# all maps in C++...
1155	sub change_all_map_light {
1156	my ($change) = @_;
1157		1834
1158	$_->change_map_light ($change)	1835	Register a handler for the map path matching the given regex at the
1159	for grep $_->outdoor, values %cf::MAP;	1836	givne priority (higher is better, built-in handlers have priority 0, the
1160	}	1837	default).
1161		1838
1162	sub try_load_header($) {	1839	=cut
		1840
		1841	sub register {
		1842	my (undef, $regex, $prio) = @_;
		1843	my $pkg = caller;
		1844
		1845	no strict;
		1846	push @{"$pkg\::ISA"}, __PACKAGE__;
		1847
		1848	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1849	}
		1850
		1851	# also paths starting with '/'
		1852	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1853
		1854	sub thawer_merge {
		1855	my ($self, $merge) = @_;
		1856
		1857	# we have to keep some variables in memory intact
		1858	local $self->{path};
		1859	local $self->{load_path};
		1860
		1861	$self->SUPER::thawer_merge ($merge);
		1862	}
		1863
		1864	sub normalise {
1163	my ($path) = @_;	1865	my ($path, $base) = @_;
		1866
		1867	$path = "$path"; # make sure its a string
		1868
		1869	$path =~ s/\.map$//;
		1870
		1871	# map plan:
		1872	#
		1873	# /! non-realised random map exit (special hack!)
		1874	# {... are special paths that are not being touched
		1875	# ?xxx/... are special absolute paths
		1876	# ?random/... random maps
		1877	# /... normal maps
		1878	# ~user/... per-player map of a specific user
		1879
		1880	$path =~ s/$PATH_SEP/\//go;
		1881
		1882	# treat it as relative path if it starts with
		1883	# something that looks reasonable
		1884	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1885	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1886
		1887	$base =~ s{[^/]+/?$}{};
		1888	$path = "$base/$path";
		1889	}
		1890
		1891	for ($path) {
		1892	redo if s{//}{/};
		1893	redo if s{/\.?/}{/};
		1894	redo if s{/[^/]+/\.\./}{/};
		1895	}
		1896
		1897	$path
		1898	}
		1899
		1900	sub new_from_path {
		1901	my (undef, $path, $base) = @_;
		1902
		1903	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1904
		1905	$path = normalise $path, $base;
		1906
		1907	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1908	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1909	my $self = bless cf::map::new, $pkg;
		1910	$self->{path} = $path; $self->path ($path);
		1911	$self->init; # pass $1 etc.
		1912	return $self;
		1913	}
		1914	}
		1915
		1916	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1917	()
		1918	}
		1919
		1920	sub init {
		1921	my ($self) = @_;
		1922
		1923	$self
		1924	}
		1925
		1926	sub as_string {
		1927	my ($self) = @_;
		1928
		1929	"$self->{path}"
		1930	}
		1931
		1932	# the displayed name, this is a one way mapping
		1933	sub visible_name {
		1934	&as_string
		1935	}
		1936
		1937	# the original (read-only) location
		1938	sub load_path {
		1939	my ($self) = @_;
		1940
		1941	"$MAPDIR/$self->{path}.map"
		1942	}
		1943
		1944	# the temporary/swap location
		1945	sub save_path {
		1946	my ($self) = @_;
		1947
		1948	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1949	"$TMPDIR/$path.map"
		1950	}
		1951
		1952	# the unique path, undef == no special unique path
		1953	sub uniq_path {
		1954	my ($self) = @_;
		1955
		1956	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1957	"$UNIQUEDIR/$path"
		1958	}
		1959
		1960	sub decay_objects {
		1961	my ($self) = @_;
		1962
		1963	return if $self->{deny_reset};
		1964
		1965	$self->do_decay_objects;
		1966	}
		1967
		1968	sub unlink_save {
		1969	my ($self) = @_;
		1970
		1971	utf8::encode (my $save = $self->save_path);
		1972	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1973	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1974	}
		1975
		1976	sub load_header_from($) {
		1977	my ($self, $path) = @_;
1164		1978
1165	utf8::encode $path;	1979	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1980	my $f = new_from_file cf::object::thawer $path
1167	or return;	1981	or return;
1168		1982
1169	my $map = cf::map::new	1983	$self->_load_header ($f)
1170	or return;	1984	or return;
1171		1985
1172	$map->load_header ($path)	1986	local $MAP_LOADING{$self->{path}} = $self;
		1987	$f->resolve_delayed_derefs;
		1988
		1989	$self->{load_path} = $path;
		1990
		1991	1
		1992	}
		1993
		1994	sub load_header_orig {
		1995	my ($self) = @_;
		1996
		1997	$self->load_header_from ($self->load_path)
		1998	}
		1999
		2000	sub load_header_temp {
		2001	my ($self) = @_;
		2002
		2003	$self->load_header_from ($self->save_path)
		2004	}
		2005
		2006	sub prepare_temp {
		2007	my ($self) = @_;
		2008
		2009	$self->last_access ((delete $self->{last_access})
		2010	|| $cf::RUNTIME); #d#
		2011	# safety
		2012	$self->{instantiate_time} = $cf::RUNTIME
		2013	if $self->{instantiate_time} > $cf::RUNTIME;
		2014	}
		2015
		2016	sub prepare_orig {
		2017	my ($self) = @_;
		2018
		2019	$self->{load_original} = 1;
		2020	$self->{instantiate_time} = $cf::RUNTIME;
		2021	$self->last_access ($cf::RUNTIME);
		2022	$self->instantiate;
		2023	}
		2024
		2025	sub load_header {
		2026	my ($self) = @_;
		2027
		2028	if ($self->load_header_temp) {
		2029	$self->prepare_temp;
		2030	} else {
		2031	$self->load_header_orig
1173	or return;	2032	or return;
		2033	$self->prepare_orig;
		2034	}
1174		2035
1175	$map->{load_path} = $path;	2036	$self->{deny_reset} = 1
		2037	if $self->no_reset;
1176		2038
1177	$map	2039	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	2040	unless $self->default_region;
1179		2041
		2042	1
		2043	}
		2044
		2045	sub find;
1180	sub find_map {	2046	sub find {
1181	my ($path, $origin) = @_;	2047	my ($path, $origin) = @_;
1182		2048
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	2049	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		2050
1188	cf::lock_wait "map_find:$key";	2051	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1189
1190	$cf::MAP{$key} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	2052	my $guard2 = cf::lock_acquire "map_find:$path";
1192		2053
1193	# do it the slow way	2054	$cf::MAP{$path} || do {
1194	my $map = try_load_header $path->save_path;	2055	my $map = new_from_path cf::map $path
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	2056	or return;
1208		2057
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	2058	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		2059
1222	if ($map->should_reset) {	2060	$map->load_header
		2061	or return;
		2062
		2063	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2064	# doing this can freeze the server in a sync job, obviously
		2065	#$cf::WAIT_FOR_TICK->wait;
		2066	undef $guard2;
		2067	undef $guard1;
1223	$map->reset;	2068	$map->reset;
1224	$map = find_map $path;	2069	return find $path;
1225	}	2070	}
1226		2071
1227	$cf::MAP{$key} = $map	2072	$cf::MAP{$path} = $map
1228	}	2073	}
1229	}	2074	}
		2075
		2076	sub pre_load { }
		2077	#sub post_load { } # XS
1230		2078
1231	sub load {	2079	sub load {
1232	my ($self) = @_;	2080	my ($self) = @_;
1233		2081
		2082	local $self->{deny_reset} = 1; # loading can take a long time
		2083
1234	my $path = $self->{path};	2084	my $path = $self->{path};
		2085
		2086	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2087	my $guard = cf::lock_acquire "map_data:$path";
1236		2088
		2089	return unless $self->valid;
1237	return if $self->in_memory != cf::MAP_SWAPPED;	2090	return unless $self->in_memory == cf::MAP_SWAPPED;
1238		2091
1239	$self->in_memory (cf::MAP_LOADING);	2092	$self->in_memory (cf::MAP_LOADING);
1240		2093
1241	$self->alloc;	2094	$self->alloc;
1242	$self->load_objects ($self->{load_path}, 1)	2095
		2096	$self->pre_load;
		2097	cf::cede_to_tick;
		2098
		2099	my $f = new_from_file cf::object::thawer $self->{load_path};
		2100	$f->skip_block;
		2101	$self->_load_objects ($f)
1243	or return;	2102	or return;
1244		2103
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2104	$self->post_load_original
1246	if delete $self->{load_original};	2105	if delete $self->{load_original};
1247		2106
1248	if (my $uniq = $path->uniq_path) {	2107	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	2108	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	2109	unless (aio_stat $uniq) {
		2110	if (my $f = new_from_file cf::object::thawer $uniq) {
1251	$self->clear_unique_items;	2111	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	2112	$self->_load_objects ($f);
		2113	$f->resolve_delayed_derefs;
		2114	}
1253	}	2115	}
1254	}	2116	}
1255		2117
		2118	$f->resolve_delayed_derefs;
		2119
		2120	cf::cede_to_tick;
1256	# now do the right thing for maps	2121	# now do the right thing for maps
1257	$self->link_multipart_objects;	2122	$self->link_multipart_objects;
1258
1259	if ($self->{path}->is_style_map) {
1260	$self->{deny_save} = 1;
1261	$self->{deny_reset} = 1;
1262	} else {
1263	$self->fix_auto_apply;
1264	$self->decay_objects;
1265	$self->update_buttons;
1266	$self->set_darkness_map;
1267	$self->difficulty ($self->estimate_difficulty)	2123	$self->difficulty ($self->estimate_difficulty)
1268	unless $self->difficulty;	2124	unless $self->difficulty;
		2125	cf::cede_to_tick;
		2126
		2127	unless ($self->{deny_activate}) {
		2128	$self->decay_objects;
		2129	$self->fix_auto_apply;
		2130	$self->update_buttons;
		2131	cf::cede_to_tick;
1269	$self->activate;	2132	$self->activate;
1270	}	2133	}
1271		2134
		2135	$self->{last_save} = $cf::RUNTIME;
		2136	$self->last_access ($cf::RUNTIME);
		2137
1272	$self->in_memory (cf::MAP_IN_MEMORY);	2138	$self->in_memory (cf::MAP_ACTIVE);
1273	}	2139	}
1274		2140
1275	sub load_map_sync {	2141	$self->post_load;
		2142	}
		2143
		2144	# customize the map for a given player, i.e.
		2145	# return the _real_ map. used by e.g. per-player
		2146	# maps to change the path to ~playername/mappath
		2147	sub customise_for {
		2148	my ($self, $ob) = @_;
		2149
		2150	return find "~" . $ob->name . "/" . $self->{path}
		2151	if $self->per_player;
		2152
		2153	# return find "?party/" . $ob->name . "/" . $self->{path}
		2154	# if $self->per_party;
		2155
		2156	$self
		2157	}
		2158
		2159	# find and load all maps in the 3x3 area around a map
		2160	sub load_neighbours {
		2161	my ($map) = @_;
		2162
		2163	my @neigh; # diagonal neighbours
		2164
		2165	for (0 .. 3) {
		2166	my $neigh = $map->tile_path ($_)
		2167	or next;
		2168	$neigh = find $neigh, $map
		2169	or next;
		2170	$neigh->load;
		2171
		2172	# now find the diagonal neighbours
		2173	push @neigh,
		2174	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2175	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2176	}
		2177
		2178	for (grep defined $_->[0], @neigh) {
		2179	my ($path, $origin) = @$_;
		2180	my $neigh = find $path, $origin
		2181	or next;
		2182	$neigh->load;
		2183	}
		2184	}
		2185
		2186	sub find_sync {
1276	my ($path, $origin) = @_;	2187	my ($path, $origin) = @_;
1277		2188
1278	#warn "load_map_sync<$path, $origin>\n";#d#	2189	cf::sync_job { find $path, $origin }
		2190	}
1279		2191
		2192	sub do_load_sync {
		2193	my ($map) = @_;
		2194
		2195	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2196	if $Coro::current == $Coro::main;
		2197
		2198	cf::sync_job { $map->load };
		2199	}
		2200
		2201	our %MAP_PREFETCH;
		2202	our $MAP_PREFETCHER = undef;
		2203
		2204	sub find_async {
		2205	my ($path, $origin, $load) = @_;
		2206
		2207	$path = normalise $path, $origin && $origin->{path};
		2208
		2209	if (my $map = $cf::MAP{$path}) {
		2210	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2211	}
		2212
		2213	$MAP_PREFETCH{$path} |= $load;
		2214
		2215	$MAP_PREFETCHER ||= cf::async {
		2216	$Coro::current->{desc} = "map prefetcher";
		2217
		2218	while (%MAP_PREFETCH) {
		2219	while (my ($k, $v) = each %MAP_PREFETCH) {
		2220	if (my $map = find $k) {
		2221	$map->load if $v;
		2222	}
		2223
		2224	delete $MAP_PREFETCH{$k};
		2225	}
		2226	}
		2227	undef $MAP_PREFETCHER;
		2228	};
		2229	$MAP_PREFETCHER->prio (6);
		2230
		2231	()
		2232	}
		2233
		2234	# common code, used by both ->save and ->swapout
		2235	sub _save {
		2236	my ($self) = @_;
		2237
		2238	$self->{last_save} = $cf::RUNTIME;
		2239
		2240	return unless $self->dirty;
		2241
		2242	my $save = $self->save_path; utf8::encode $save;
		2243	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2244
		2245	$self->{load_path} = $save;
		2246
		2247	return if $self->{deny_save};
		2248
		2249	local $self->{last_access} = $self->last_access;#d#
		2250
1280	cf::sync_job {	2251	cf::async {
1281	my $map = cf::map::find_map $path, $origin	2252	$Coro::current->{desc} = "map player save";
1282	or return;	2253	$_->contr->save for $self->players;
1283	$map->load;	2254	};
1284	$map	2255
		2256	cf::get_slot 0.02;
		2257
		2258	if ($uniq) {
		2259	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2260	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2261	} else {
		2262	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1285	}	2263	}
1286	}	2264	}
1287		2265
1288	sub save {	2266	sub save {
1289	my ($self) = @_;	2267	my ($self) = @_;
1290		2268
1291	$self->{last_save} = $cf::RUNTIME;	2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
1292		2270
1293	return unless $self->dirty;	2271	$self->_save;
1294
1295	my $save = $self->{path}->save_path; utf8::encode $save;
1296	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1297
1298	$self->{load_path} = $save;
1299
1300	return if $self->{deny_save};
1301
1302	if ($uniq) {
1303	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1304	$self->save_objects ($uniq, cf::IO_UNIQUES);
1305	} else {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1307	}
1308	}	2272	}
1309		2273
1310	sub swap_out {	2274	sub swap_out {
1311	my ($self) = @_;	2275	my ($self) = @_;
1312		2276
		2277	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2278
		2279	return if $self->in_memory != cf::MAP_ACTIVE;
		2280	return if $self->{deny_save};
1313	return if $self->players;	2281	return if $self->players;
1314	return if $self->in_memory != cf::MAP_IN_MEMORY;
1315	return if $self->{deny_save};
1316		2282
		2283	# first deactivate the map and "unlink" it from the core
		2284	$self->deactivate;
		2285	$_->clear_links_to ($self) for values %cf::MAP;
		2286	$self->in_memory (cf::MAP_SWAPPED);
		2287
		2288	# then atomically save
1317	$self->save;	2289	$self->_save;
		2290
		2291	# then free the map
1318	$self->clear;	2292	$self->clear;
1319	$self->in_memory (cf::MAP_SWAPPED);
1320	}	2293	}
1321		2294
1322	sub reset_at {	2295	sub reset_at {
1323	my ($self) = @_;	2296	my ($self) = @_;
1324		2297
1325	# TODO: safety, remove and allow resettable per-player maps	2298	# TODO: safety, remove and allow resettable per-player maps
1326	return 1e99 if $self->{path}{user_rel};
1327	return 1e99 if $self->{deny_reset};	2299	return 1e99 if $self->{deny_reset};
1328		2300
1329	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2301	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1330	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2302	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1331		2303
…		…
1336	my ($self) = @_;	2308	my ($self) = @_;
1337		2309
1338	$self->reset_at <= $cf::RUNTIME	2310	$self->reset_at <= $cf::RUNTIME
1339	}	2311	}
1340		2312
1341	sub unlink_save {
1342	my ($self) = @_;
1343
1344	utf8::encode (my $save = $self->{path}->save_path);
1345	aioreq_pri 3; IO::AIO::aio_unlink $save;
1346	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1347	}
1348
1349	sub rename {
1350	my ($self, $new_path) = @_;
1351
1352	$self->unlink_save;
1353
1354	delete $cf::MAP{$self->path};
1355	$self->{path} = new cf::path $new_path;
1356	$self->path ($self->{path}->as_string);
1357	$cf::MAP{$self->path} = $self;
1358
1359	$self->save;
1360	}
1361
1362	sub reset {	2313	sub reset {
1363	my ($self) = @_;	2314	my ($self) = @_;
1364		2315
		2316	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2317
1365	return if $self->players;	2318	return if $self->players;
1366	return if $self->{path}{user_rel};#d#
1367		2319
1368	warn "resetting map ", $self->path;#d#	2320	warn "resetting map ", $self->path, "\n";
		2321
		2322	$self->in_memory (cf::MAP_SWAPPED);
		2323
		2324	# need to save uniques path
		2325	unless ($self->{deny_save}) {
		2326	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2327
		2328	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2329	if $uniq;
		2330	}
1369		2331
1370	delete $cf::MAP{$self->path};	2332	delete $cf::MAP{$self->path};
1371		2333
		2334	$self->deactivate;
1372	$_->clear_links_to ($self) for values %cf::MAP;	2335	$_->clear_links_to ($self) for values %cf::MAP;
		2336	$self->clear;
1373		2337
1374	$self->unlink_save;	2338	$self->unlink_save;
1375	$self->destroy;	2339	$self->destroy;
1376	}	2340	}
1377		2341
1378	my $nuke_counter = "aaaa";	2342	my $nuke_counter = "aaaa";
1379		2343
1380	sub nuke {	2344	sub nuke {
1381	my ($self) = @_;	2345	my ($self) = @_;
1382		2346
		2347	{
		2348	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2349
		2350	delete $cf::MAP{$self->path};
		2351
		2352	$self->unlink_save;
		2353
		2354	bless $self, "cf::map::wrap";
		2355	delete $self->{deny_reset};
1383	$self->{deny_save} = 1;	2356	$self->{deny_save} = 1;
1384	$self->reset_timeout (1);	2357	$self->reset_timeout (1);
1385	$self->rename ("{nuke}/" . ($nuke_counter++));	2358	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2359
		2360	$cf::MAP{$self->path} = $self;
		2361	}
		2362
1386	$self->reset; # polite request, might not happen	2363	$self->reset; # polite request, might not happen
1387	}	2364	}
1388		2365
1389	sub customise_for {	2366	=item $maps = cf::map::tmp_maps
1390	my ($map, $ob) = @_;
1391		2367
1392	if ($map->per_player) {	2368	Returns an arrayref with all map paths of currently instantiated and saved
1393	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2369	maps. May block.
		2370
		2371	=cut
		2372
		2373	sub tmp_maps() {
1394	}	2374	[
1395		2375	map {
1396	$map	2376	utf8::decode $_;
		2377	/\.map$/
		2378	? normalise $_
		2379	: ()
		2380	} @{ aio_readdir $TMPDIR or [] }
		2381	]
1397	}	2382	}
1398		2383
1399	sub emergency_save {	2384	=item $maps = cf::map::random_maps
1400	local $cf::FREEZE = 1;
1401		2385
1402	warn "enter emergency map save\n";	2386	Returns an arrayref with all map paths of currently instantiated and saved
		2387	random maps. May block.
1403		2388
1404	cf::sync_job {	2389	=cut
1405	warn "begin emergency map save\n";	2390
1406	$_->save for values %cf::MAP;	2391	sub random_maps() {
		2392	[
		2393	map {
		2394	utf8::decode $_;
		2395	/\.map$/
		2396	? normalise "?random/$_"
		2397	: ()
		2398	} @{ aio_readdir $RANDOMDIR or [] }
		2399	]
		2400	}
		2401
		2402	=item cf::map::unique_maps
		2403
		2404	Returns an arrayref of paths of all shared maps that have
		2405	instantiated unique items. May block.
		2406
		2407	=cut
		2408
		2409	sub unique_maps() {
		2410	[
		2411	map {
		2412	utf8::decode $_;
		2413	s/\.map$//; # TODO future compatibility hack
		2414	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2415	? ()
		2416	: normalise $_
		2417	} @{ aio_readdir $UNIQUEDIR or [] }
		2418	]
		2419	}
		2420
		2421	=item cf::map::static_maps
		2422
		2423	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2424	file in the shared directory excluding F</styles> and F</editor>). May
		2425	block.
		2426
		2427	=cut
		2428
		2429	sub static_maps() {
		2430	my @dirs = "";
		2431	my @maps;
		2432
		2433	while (@dirs) {
		2434	my $dir = shift @dirs;
		2435
		2436	next if $dir eq "/styles" || $dir eq "/editor";
		2437
		2438	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2439	or return;
		2440
		2441	for (@$files) {
		2442	s/\.map$// or next;
		2443	utf8::decode $_;
		2444	push @maps, "$dir/$_";
		2445	}
		2446
		2447	push @dirs, map "$dir/$_", @$dirs;
1407	};	2448	}
1408		2449
1409	warn "end emergency map save\n";	2450	\@maps
		2451	}
		2452
		2453	=back
		2454
		2455	=head3 cf::object
		2456
		2457	=cut
		2458
		2459	package cf::object;
		2460
		2461	=over 4
		2462
		2463	=item $ob->inv_recursive
		2464
		2465	Returns the inventory of the object I<and> their inventories, recursively,
		2466	but I<not> the object itself.
		2467
		2468	=cut
		2469
		2470	sub inv_recursive_;
		2471	sub inv_recursive_ {
		2472	map { $_, inv_recursive_ $_->inv } @_
		2473	}
		2474
		2475	sub inv_recursive {
		2476	inv_recursive_ inv $_[0]
		2477	}
		2478
		2479	=item $ref = $ob->ref
		2480
		2481	Creates and returns a persistent reference to an object that can be stored as a string.
		2482
		2483	=item $ob = cf::object::deref ($refstring)
		2484
		2485	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2486	even if the object actually exists. May block.
		2487
		2488	=cut
		2489
		2490	sub deref {
		2491	my ($ref) = @_;
		2492
		2493	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2494	my ($uuid, $name) = ($1, $2);
		2495	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2496	or return;
		2497	$pl->ob->uuid eq $uuid
		2498	or return;
		2499
		2500	$pl->ob
		2501	} else {
		2502	warn "$ref: cannot resolve object reference\n";
		2503	undef
		2504	}
1410	}	2505	}
1411		2506
1412	package cf;	2507	package cf;
1413		2508
1414	=back	2509	=back
1415
1416		2510
1417	=head3 cf::object::player	2511	=head3 cf::object::player
1418		2512
1419	=over 4	2513	=over 4
1420		2514
…		…
1423	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2517	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1424	can be C<undef>. Does the right thing when the player is currently in a	2518	can be C<undef>. Does the right thing when the player is currently in a
1425	dialogue with the given NPC character.	2519	dialogue with the given NPC character.
1426		2520
1427	=cut	2521	=cut
		2522
		2523	our $SAY_CHANNEL = {
		2524	id => "say",
		2525	title => "Map",
		2526	reply => "say ",
		2527	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2528	};
		2529
		2530	our $CHAT_CHANNEL = {
		2531	id => "chat",
		2532	title => "Chat",
		2533	reply => "chat ",
		2534	tooltip => "Player chat and shouts, global to the server.",
		2535	};
1428		2536
1429	# rough implementation of a future "reply" method that works	2537	# rough implementation of a future "reply" method that works
1430	# with dialog boxes.	2538	# with dialog boxes.
1431	#TODO: the first argument must go, split into a $npc->reply_to ( method	2539	#TODO: the first argument must go, split into a $npc->reply_to ( method
1432	sub cf::object::player::reply($$$;$) {	2540	sub cf::object::player::reply($$$;$) {
…		…
1434		2542
1435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2543	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1436		2544
1437	if ($self->{record_replies}) {	2545	if ($self->{record_replies}) {
1438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2546	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2547
1439	} else {	2548	} else {
		2549	my $pl = $self->contr;
		2550
		2551	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2552	my $dialog = $pl->{npc_dialog};
		2553	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2554
		2555	} else {
1440	$msg = $npc->name . " says: $msg" if $npc;	2556	$msg = $npc->name . " says: $msg" if $npc;
1441	$self->message ($msg, $flags);	2557	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2558	}
1442	}	2559	}
		2560	}
		2561
		2562	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2563
		2564	=cut
		2565
		2566	sub cf::object::send_msg {
		2567	my $pl = shift->contr
		2568	or return;
		2569	$pl->send_msg (@_);
1443	}	2570	}
1444		2571
1445	=item $player_object->may ("access")	2572	=item $player_object->may ("access")
1446		2573
1447	Returns wether the given player is authorized to access resource "access"	2574	Returns wether the given player is authorized to access resource "access"
…		…
1460		2587
1461	=item $player_object->enter_link	2588	=item $player_object->enter_link
1462		2589
1463	Freezes the player and moves him/her to a special map (C<{link}>).	2590	Freezes the player and moves him/her to a special map (C<{link}>).
1464		2591
1465	The player should be reaosnably safe there for short amounts of time. You	2592	The player should be reasonably safe there for short amounts of time (e.g.
1466	I<MUST> call C<leave_link> as soon as possible, though.	2593	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2594	though, as the player cannot control the character while it is on the link
		2595	map.
		2596
		2597	Will never block.
1467		2598
1468	=item $player_object->leave_link ($map, $x, $y)	2599	=item $player_object->leave_link ($map, $x, $y)
1469		2600
1470	Moves the player out of the specila link map onto the given map. If the	2601	Moves the player out of the special C<{link}> map onto the specified
1471	map is not valid (or omitted), the player will be moved back to the	2602	map. If the map is not valid (or omitted), the player will be moved back
1472	location he/she was before the call to C<enter_link>, or, if that fails,	2603	to the location he/she was before the call to C<enter_link>, or, if that
1473	to the emergency map position.	2604	fails, to the emergency map position.
1474		2605
1475	Might block.	2606	Might block.
1476		2607
1477	=cut	2608	=cut
		2609
		2610	sub link_map {
		2611	unless ($LINK_MAP) {
		2612	$LINK_MAP = cf::map::find "{link}"
		2613	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2614	$LINK_MAP->load;
		2615	}
		2616
		2617	$LINK_MAP
		2618	}
1478		2619
1479	sub cf::object::player::enter_link {	2620	sub cf::object::player::enter_link {
1480	my ($self) = @_;	2621	my ($self) = @_;
1481		2622
1482	$self->deactivate_recursive;	2623	$self->deactivate_recursive;
1483		2624
1484	return if $self->map == $LINK_MAP;	2625	++$self->{_link_recursion};
		2626
		2627	return if UNIVERSAL::isa $self->map, "ext::map_link";
1485		2628
1486	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2629	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1487	if $self->map;	2630	if $self->map && $self->map->{path} ne "{link}";
1488		2631
1489	$self->enter_map ($LINK_MAP, 20, 20);	2632	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1490	}	2633	}
1491		2634
1492	sub cf::object::player::leave_link {	2635	sub cf::object::player::leave_link {
1493	my ($self, $map, $x, $y) = @_;	2636	my ($self, $map, $x, $y) = @_;
		2637
		2638	return unless $self->contr->active;
1494		2639
1495	my $link_pos = delete $self->{_link_pos};	2640	my $link_pos = delete $self->{_link_pos};
1496		2641
1497	unless ($map) {	2642	unless ($map) {
1498	# restore original map position	2643	# restore original map position
1499	($map, $x, $y) = @{ $link_pos || [] };	2644	($map, $x, $y) = @{ $link_pos || [] };
1500	$map = cf::map::find_map $map;	2645	$map = cf::map::find $map;
1501		2646
1502	unless ($map) {	2647	unless ($map) {
1503	($map, $x, $y) = @$EMERGENCY_POSITION;	2648	($map, $x, $y) = @$EMERGENCY_POSITION;
1504	$map = cf::map::find_map $map	2649	$map = cf::map::find $map
1505	or die "FATAL: cannot load emergency map\n";	2650	or die "FATAL: cannot load emergency map\n";
1506	}	2651	}
1507	}	2652	}
1508		2653
1509	($x, $y) = (-1, -1)	2654	($x, $y) = (-1, -1)
1510	unless (defined $x) && (defined $y);	2655	unless (defined $x) && (defined $y);
1511		2656
1512	# use -1 or undef as default coordinates, not 0, 0	2657	# use -1 or undef as default coordinates, not 0, 0
1513	($x, $y) = ($map->enter_x, $map->enter_y)	2658	($x, $y) = ($map->enter_x, $map->enter_y)
1514	if $x <=0 && $y <= 0;	2659	if $x <= 0 && $y <= 0;
1515		2660
1516	$map->load;	2661	$map->load;
		2662	$map->load_neighbours;
1517		2663
		2664	return unless $self->contr->active;
		2665
		2666	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2667	if ($self->enter_map ($map, $x, $y)) {
		2668	# entering was successful
		2669	delete $self->{_link_recursion};
		2670	# only activate afterwards, to support waiting in hooks
1518	$self->activate_recursive;	2671	$self->activate_recursive;
1519	$self->enter_map ($map, $x, $y);
1520	}
1521
1522	cf::player->attach (
1523	on_logout => sub {
1524	my ($pl) = @_;
1525
1526	# abort map switching before logout
1527	if ($pl->ob->{_link_pos}) {
1528	cf::sync_job {
1529	$pl->ob->leave_link
1530	};
1531	}
1532	},	2672	}
1533	on_login => sub {
1534	my ($pl) = @_;
1535		2673
1536	# try to abort aborted map switching on player login :)	2674	}
1537	# should happen only on crashes
1538	if ($pl->ob->{_link_pos}) {
1539	$pl->ob->enter_link;
1540	Coro::async {
1541	# we need this sleep as the login has a concurrent enter_exit running
1542	# and this sleep increases chances of the player not ending up in scorn
1543	Coro::Timer::sleep 1;
1544	$pl->ob->leave_link;
1545	};
1546	}
1547	},
1548	);
1549		2675
1550	=item $player_object->goto_map ($path, $x, $y)	2676	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1551		2677
1552	=cut	2678	Moves the player to the given map-path and coordinates by first freezing
		2679	her, loading and preparing them map, calling the provided $check callback
		2680	that has to return the map if sucecssful, and then unfreezes the player on
		2681	the new (success) or old (failed) map position. In either case, $done will
		2682	be called at the end of this process.
1553		2683
		2684	Note that $check will be called with a potentially non-loaded map, so if
		2685	it needs a loaded map it has to call C<< ->load >>.
		2686
		2687	=cut
		2688
		2689	our $GOTOGEN;
		2690
1554	sub cf::object::player::goto_map {	2691	sub cf::object::player::goto {
1555	my ($self, $path, $x, $y) = @_;	2692	my ($self, $path, $x, $y, $check, $done) = @_;
		2693
		2694	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2695	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2696	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2697	($path, $x, $y) = @$EMERGENCY_POSITION;
		2698	}
		2699
		2700	# do generation counting so two concurrent goto's will be executed in-order
		2701	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1556		2702
1557	$self->enter_link;	2703	$self->enter_link;
1558		2704
1559	(Coro::async {	2705	(async {
1560	$path = new cf::path $path;	2706	$Coro::current->{desc} = "player::goto $path $x $y";
1561		2707
1562	my $map = cf::map::find_map $path->as_string;	2708	# *tag paths override both path and x|y
		2709	if ($path =~ /^\*(.*)$/) {
		2710	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2711	my $ob = $obs[rand @obs];
		2712
		2713	# see if we actually can go there
		2714	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2715	$ob = $obs[rand @obs];
		2716	} else {
		2717	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2718	}
		2719	# else put us there anyways for now #d#
		2720
		2721	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2722	} else {
		2723	($path, $x, $y) = (undef, undef, undef);
		2724	}
		2725	}
		2726
		2727	my $map = eval {
		2728	my $map = defined $path ? cf::map::find $path : undef;
		2729
		2730	if ($map) {
1563	$map = $map->customise_for ($self) if $map;	2731	$map = $map->customise_for ($self);
1564		2732	$map = $check->($map, $x, $y, $self) if $check && $map;
1565	# warn "entering ", $map->path, " at ($x, $y)\n"	2733	} else {
1566	# if $map;
1567
1568	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2734	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2735	}
1569		2736
		2737	$map
		2738	};
		2739
		2740	if ($@) {
		2741	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2742	LOG llevError | logBacktrace, Carp::longmess $@;
		2743	}
		2744
		2745	if ($gen == $self->{_goto_generation}) {
		2746	delete $self->{_goto_generation};
1570	$self->leave_link ($map, $x, $y);	2747	$self->leave_link ($map, $x, $y);
		2748	}
		2749
		2750	$done->($self) if $done;
1571	})->prio (1);	2751	})->prio (1);
1572	}	2752	}
1573		2753
1574	=item $player_object->enter_exit ($exit_object)	2754	=item $player_object->enter_exit ($exit_object)
1575		2755
…		…
1577		2757
1578	sub parse_random_map_params {	2758	sub parse_random_map_params {
1579	my ($spec) = @_;	2759	my ($spec) = @_;
1580		2760
1581	my $rmp = { # defaults	2761	my $rmp = { # defaults
1582	xsize => 10,	2762	xsize => (cf::rndm 15, 40),
1583	ysize => 10,	2763	ysize => (cf::rndm 15, 40),
		2764	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2765	#layout => string,
1584	};	2766	};
1585		2767
1586	for (split /\n/, $spec) {	2768	for (split /\n/, $spec) {
1587	my ($k, $v) = split /\s+/, $_, 2;	2769	my ($k, $v) = split /\s+/, $_, 2;
1588		2770
…		…
1600	# that depends on the exit object	2782	# that depends on the exit object
1601		2783
1602	my $rmp = parse_random_map_params $exit->msg;	2784	my $rmp = parse_random_map_params $exit->msg;
1603		2785
1604	if ($exit->map) {	2786	if ($exit->map) {
1605	$rmp->{region} = $exit->map->region_name;	2787	$rmp->{region} = $exit->region->name;
1606	$rmp->{origin_map} = $exit->map->path;	2788	$rmp->{origin_map} = $exit->map->path;
1607	$rmp->{origin_x} = $exit->x;	2789	$rmp->{origin_x} = $exit->x;
1608	$rmp->{origin_y} = $exit->y;	2790	$rmp->{origin_y} = $exit->y;
		2791
		2792	$exit->map->touch;
1609	}	2793	}
1610		2794
1611	$rmp->{random_seed} ||= $exit->random_seed;	2795	$rmp->{random_seed} ||= $exit->random_seed;
1612		2796
1613	my $data = cf::to_json $rmp;	2797	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1614	my $md5 = Digest::MD5::md5_hex $data;	2798	my $md5 = Digest::MD5::md5_hex $data;
		2799	my $meta = "$RANDOMDIR/$md5.meta";
1615		2800
1616	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2801	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1617	aio_write $fh, 0, (length $data), $data, 0;	2802	aio_write $fh, 0, (length $data), $data, 0;
		2803	undef $fh;
		2804	aio_rename "$meta~", $meta;
1618		2805
		2806	my $slaying = "?random/$md5";
		2807
		2808	if ($exit->valid) {
1619	$exit->slaying ("?random/$md5");	2809	$exit->slaying ("?random/$md5");
1620	$exit->msg (undef);	2810	$exit->msg (undef);
		2811	}
1621	}	2812	}
1622	}	2813	}
1623		2814
1624	sub cf::object::player::enter_exit {	2815	sub cf::object::player::enter_exit {
1625	my ($self, $exit) = @_;	2816	my ($self, $exit) = @_;
1626		2817
1627	return unless $self->type == cf::PLAYER;	2818	return unless $self->type == cf::PLAYER;
1628		2819
1629	$self->enter_link;	2820	$self->enter_link;
1630		2821
1631	(Coro::async {	2822	(async {
		2823	$Coro::current->{desc} = "enter_exit";
		2824
1632	unless (eval {	2825	unless (eval {
		2826	$self->deactivate_recursive; # just to be sure
1633		2827
		2828	# random map handling
		2829	{
		2830	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2831
1634	prepare_random_map $exit	2832	prepare_random_map $exit
1635	if $exit->slaying eq "/!";	2833	if $exit->slaying eq "/!";
		2834	}
1636		2835
1637	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2836	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1638	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2837	my $x = $exit->stats->hp;
		2838	my $y = $exit->stats->sp;
1639		2839
		2840	$self->goto ($map, $x, $y);
		2841
		2842	# if exit is damned, update players death & WoR home-position
		2843	$self->contr->savebed ($map, $x, $y)
		2844	if $exit->flag (cf::FLAG_DAMNED);
		2845
1640	1;	2846	1
1641	}) {	2847	}) {
1642	$self->message ("Something went wrong deep within the crossfire server. "	2848	$self->message ("Something went wrong deep within the deliantra server. "
1643	. "I'll try to bring you back to the map you were before. "	2849	. "I'll try to bring you back to the map you were before. "
1644	. "Please report this to the dungeon master",	2850	. "Please report this to the dungeon master!",
1645	cf::NDI_UNIQUE | cf::NDI_RED);	2851	cf::NDI_UNIQUE | cf::NDI_RED);
1646		2852
1647	warn "ERROR in enter_exit: $@";	2853	warn "ERROR in enter_exit: $@";
1648	$self->leave_link;	2854	$self->leave_link;
1649	}	2855	}
1650	})->prio (1);	2856	})->prio (1);
…		…
1663		2869
1664	sub cf::client::send_drawinfo {	2870	sub cf::client::send_drawinfo {
1665	my ($self, $text, $flags) = @_;	2871	my ($self, $text, $flags) = @_;
1666		2872
1667	utf8::encode $text;	2873	utf8::encode $text;
1668	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2874	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1669	}	2875	}
1670		2876
		2877	=item $client->send_big_packet ($pkt)
		2878
		2879	Like C<send_packet>, but tries to compress large packets, and fragments
		2880	them as required.
		2881
		2882	=cut
		2883
		2884	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2885
		2886	sub cf::client::send_big_packet {
		2887	my ($self, $pkt) = @_;
		2888
		2889	# try lzf for large packets
		2890	$pkt = "lzf " . Compress::LZF::compress $pkt
		2891	if 1024 <= length $pkt and $self->{can_lzf};
		2892
		2893	# split very large packets
		2894	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2895	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2896	$pkt = "frag";
		2897	}
		2898
		2899	$self->send_packet ($pkt);
		2900	}
		2901
		2902	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2903
		2904	Send a drawinfo or msg packet to the client, formatting the msg for the
		2905	client if neccessary. C<$type> should be a string identifying the type of
		2906	the message, with C<log> being the default. If C<$color> is negative, suppress
		2907	the message unless the client supports the msg packet.
		2908
		2909	=cut
		2910
		2911	# non-persistent channels (usually the info channel)
		2912	our %CHANNEL = (
		2913	"c/motd" => {
		2914	id => "infobox",
		2915	title => "MOTD",
		2916	reply => undef,
		2917	tooltip => "The message of the day",
		2918	},
		2919	"c/identify" => {
		2920	id => "infobox",
		2921	title => "Identify",
		2922	reply => undef,
		2923	tooltip => "Items recently identified",
		2924	},
		2925	"c/examine" => {
		2926	id => "infobox",
		2927	title => "Examine",
		2928	reply => undef,
		2929	tooltip => "Signs and other items you examined",
		2930	},
		2931	"c/shopinfo" => {
		2932	id => "infobox",
		2933	title => "Shop Info",
		2934	reply => undef,
		2935	tooltip => "What your bargaining skill tells you about the shop",
		2936	},
		2937	"c/book" => {
		2938	id => "infobox",
		2939	title => "Book",
		2940	reply => undef,
		2941	tooltip => "The contents of a note or book",
		2942	},
		2943	"c/lookat" => {
		2944	id => "infobox",
		2945	title => "Look",
		2946	reply => undef,
		2947	tooltip => "What you saw there",
		2948	},
		2949	"c/who" => {
		2950	id => "infobox",
		2951	title => "Players",
		2952	reply => undef,
		2953	tooltip => "Shows players who are currently online",
		2954	},
		2955	"c/body" => {
		2956	id => "infobox",
		2957	title => "Body Parts",
		2958	reply => undef,
		2959	tooltip => "Shows which body parts you posess and are available",
		2960	},
		2961	"c/statistics" => {
		2962	id => "infobox",
		2963	title => "Statistics",
		2964	reply => undef,
		2965	tooltip => "Shows your primary statistics",
		2966	},
		2967	"c/skills" => {
		2968	id => "infobox",
		2969	title => "Skills",
		2970	reply => undef,
		2971	tooltip => "Shows your experience per skill and item power",
		2972	},
		2973	"c/shopitems" => {
		2974	id => "infobox",
		2975	title => "Shop Items",
		2976	reply => undef,
		2977	tooltip => "Shows the items currently for sale in this shop",
		2978	},
		2979	"c/resistances" => {
		2980	id => "infobox",
		2981	title => "Resistances",
		2982	reply => undef,
		2983	tooltip => "Shows your resistances",
		2984	},
		2985	"c/pets" => {
		2986	id => "infobox",
		2987	title => "Pets",
		2988	reply => undef,
		2989	tooltip => "Shows information abotu your pets/a specific pet",
		2990	},
		2991	"c/perceiveself" => {
		2992	id => "infobox",
		2993	title => "Perceive Self",
		2994	reply => undef,
		2995	tooltip => "You gained detailed knowledge about yourself",
		2996	},
		2997	"c/uptime" => {
		2998	id => "infobox",
		2999	title => "Uptime",
		3000	reply => undef,
		3001	tooltip => "How long the server has been running since last restart",
		3002	},
		3003	"c/mapinfo" => {
		3004	id => "infobox",
		3005	title => "Map Info",
		3006	reply => undef,
		3007	tooltip => "Information related to the maps",
		3008	},
		3009	"c/party" => {
		3010	id => "party",
		3011	title => "Party",
		3012	reply => "gsay ",
		3013	tooltip => "Messages and chat related to your party",
		3014	},
		3015	"c/death" => {
		3016	id => "death",
		3017	title => "Death",
		3018	reply => undef,
		3019	tooltip => "Reason for and more info about your most recent death",
		3020	},
		3021	"c/say" => $SAY_CHANNEL,
		3022	"c/chat" => $CHAT_CHANNEL,
		3023	);
		3024
		3025	sub cf::client::send_msg {
		3026	my ($self, $channel, $msg, $color, @extra) = @_;
		3027
		3028	$msg = $self->pl->expand_cfpod ($msg)
		3029	unless $color & cf::NDI_VERBATIM;
		3030
		3031	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3032
		3033	# check predefined channels, for the benefit of C
		3034	if ($CHANNEL{$channel}) {
		3035	$channel = $CHANNEL{$channel};
		3036
		3037	$self->ext_msg (channel_info => $channel);
		3038	$channel = $channel->{id};
		3039
		3040	} elsif (ref $channel) {
		3041	# send meta info to client, if not yet sent
		3042	unless (exists $self->{channel}{$channel->{id}}) {
		3043	$self->{channel}{$channel->{id}} = $channel;
		3044	$self->ext_msg (channel_info => $channel);
		3045	}
		3046
		3047	$channel = $channel->{id};
		3048	}
		3049
		3050	return unless @extra || length $msg;
		3051
		3052	# default colour, mask it out
		3053	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3054	if $color & cf::NDI_DEF;
		3055
		3056	my $pkt = "msg "
		3057	. $self->{json_coder}->encode (
		3058	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3059	);
		3060
		3061	$self->send_big_packet ($pkt);
		3062	}
		3063
		3064	=item $client->ext_msg ($type, @msg)
		3065
		3066	Sends an ext event to the client.
		3067
		3068	=cut
		3069
		3070	sub cf::client::ext_msg($$@) {
		3071	my ($self, $type, @msg) = @_;
		3072
		3073	if ($self->extcmd == 2) {
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3075	} elsif ($self->extcmd == 1) { # TODO: remove
		3076	push @msg, msgtype => "event_$type";
		3077	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3078	}
		3079	}
		3080
		3081	=item $client->ext_reply ($msgid, @msg)
		3082
		3083	Sends an ext reply to the client.
		3084
		3085	=cut
		3086
		3087	sub cf::client::ext_reply($$@) {
		3088	my ($self, $id, @msg) = @_;
		3089
		3090	if ($self->extcmd == 2) {
		3091	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3092	} elsif ($self->extcmd == 1) {
		3093	#TODO: version 1, remove
		3094	unshift @msg, msgtype => "reply", msgid => $id;
		3095	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3096	}
		3097	}
1671		3098
1672	=item $success = $client->query ($flags, "text", \&cb)	3099	=item $success = $client->query ($flags, "text", \&cb)
1673		3100
1674	Queues a query to the client, calling the given callback with	3101	Queues a query to the client, calling the given callback with
1675	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3102	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1676	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3103	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1677		3104
1678	Queries can fail, so check the return code. Or don't, as queries will become	3105	Queries can fail, so check the return code. Or don't, as queries will
1679	reliable at some point in the future.	3106	become reliable at some point in the future.
1680		3107
1681	=cut	3108	=cut
1682		3109
1683	sub cf::client::query {	3110	sub cf::client::query {
1684	my ($self, $flags, $text, $cb) = @_;	3111	my ($self, $flags, $text, $cb) = @_;
…		…
1692	utf8::encode $text;	3119	utf8::encode $text;
1693	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3120	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1694		3121
1695	$self->send_packet ($self->{query_queue}[0][0])	3122	$self->send_packet ($self->{query_queue}[0][0])
1696	if @{ $self->{query_queue} } == 1;	3123	if @{ $self->{query_queue} } == 1;
		3124
		3125	1
1697	}	3126	}
1698		3127
1699	cf::client->attach (	3128	cf::client->attach (
		3129	on_connect => sub {
		3130	my ($ns) = @_;
		3131
		3132	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3133	},
1700	on_reply => sub {	3134	on_reply => sub {
1701	my ($ns, $msg) = @_;	3135	my ($ns, $msg) = @_;
1702		3136
1703	# this weird shuffling is so that direct followup queries	3137	# this weird shuffling is so that direct followup queries
1704	# get handled first	3138	# get handled first
1705	my $queue = delete $ns->{query_queue};	3139	my $queue = delete $ns->{query_queue}
		3140	or return; # be conservative, not sure how that can happen, but we saw a crash here
1706		3141
1707	(shift @$queue)->[1]->($msg);	3142	(shift @$queue)->[1]->($msg);
		3143	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1708		3144
1709	push @{ $ns->{query_queue} }, @$queue;	3145	push @{ $ns->{query_queue} }, @$queue;
1710		3146
1711	if (@{ $ns->{query_queue} } == @$queue) {	3147	if (@{ $ns->{query_queue} } == @$queue) {
1712	if (@$queue) {	3148	if (@$queue) {
…		…
1714	} else {	3150	} else {
1715	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3151	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1716	}	3152	}
1717	}	3153	}
1718	},	3154	},
		3155	on_exticmd => sub {
		3156	my ($ns, $buf) = @_;
		3157
		3158	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3159
		3160	if (ref $msg) {
		3161	my ($type, $reply, @payload) =
		3162	"ARRAY" eq ref $msg
		3163	? @$msg
		3164	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3165
		3166	my @reply;
		3167
		3168	if (my $cb = $EXTICMD{$type}) {
		3169	@reply = $cb->($ns, @payload);
		3170	}
		3171
		3172	$ns->ext_reply ($reply, @reply)
		3173	if $reply;
		3174
		3175	} else {
		3176	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3177	}
		3178
		3179	cf::override;
		3180	},
1719	);	3181	);
1720		3182
1721	=item $client->coro (\&cb)	3183	=item $client->async (\&cb)
1722		3184
1723	Create a new coroutine, running the specified callback. The coroutine will	3185	Create a new coroutine, running the specified callback. The coroutine will
1724	be automatically cancelled when the client gets destroyed (e.g. on logout,	3186	be automatically cancelled when the client gets destroyed (e.g. on logout,
1725	or loss of connection).	3187	or loss of connection).
1726		3188
1727	=cut	3189	=cut
1728		3190
1729	sub cf::client::coro {	3191	sub cf::client::async {
1730	my ($self, $cb) = @_;	3192	my ($self, $cb) = @_;
1731		3193
1732	my $coro; $coro = async {	3194	my $coro = &Coro::async ($cb);
1733	eval {
1734	$cb->();
1735	};
1736	warn $@ if $@;
1737	};
1738		3195
1739	$coro->on_destroy (sub {	3196	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	3197	delete $self->{_coro}{$coro+0};
1741	});	3198	});
1742		3199
…		…
1744		3201
1745	$coro	3202	$coro
1746	}	3203	}
1747		3204
1748	cf::client->attach (	3205	cf::client->attach (
1749	on_destroy => sub {	3206	on_client_destroy => sub {
1750	my ($ns) = @_;	3207	my ($ns) = @_;
1751		3208
1752	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3209	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1753	},	3210	},
1754	);	3211	);
…		…
1769	our $safe = new Safe "safe";	3226	our $safe = new Safe "safe";
1770	our $safe_hole = new Safe::Hole;	3227	our $safe_hole = new Safe::Hole;
1771		3228
1772	$SIG{FPE} = 'IGNORE';	3229	$SIG{FPE} = 'IGNORE';
1773		3230
1774	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3231	$safe->permit_only (Opcode::opset qw(
		3232	:base_core :base_mem :base_orig :base_math :base_loop
		3233	grepstart grepwhile mapstart mapwhile
		3234	sort time
		3235	));
1775		3236
1776	# here we export the classes and methods available to script code	3237	# here we export the classes and methods available to script code
1777		3238
1778	=pod	3239	=pod
1779		3240
1780	The following fucntions and emthods are available within a safe environment:	3241	The following functions and methods are available within a safe environment:
1781		3242
1782	cf::object contr pay_amount pay_player map	3243	cf::object
		3244	contr pay_amount pay_player map x y force_find force_add destroy
		3245	insert remove name archname title slaying race decrease split
		3246	value
		3247
1783	cf::object::player player	3248	cf::object::player
1784	cf::player peaceful	3249	player
1785	cf::map trigger	3250
		3251	cf::player
		3252	peaceful
		3253
		3254	cf::map
		3255	trigger
1786		3256
1787	=cut	3257	=cut
1788		3258
1789	for (	3259	for (
1790	["cf::object" => qw(contr pay_amount pay_player map)],	3260	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3261	insert remove inv nrof name archname title slaying race
		3262	decrease split destroy change_exp value msg lore send_msg)],
1791	["cf::object::player" => qw(player)],	3263	["cf::object::player" => qw(player)],
1792	["cf::player" => qw(peaceful)],	3264	["cf::player" => qw(peaceful send_msg)],
1793	["cf::map" => qw(trigger)],	3265	["cf::map" => qw(trigger)],
1794	) {	3266	) {
1795	no strict 'refs';	3267	no strict 'refs';
1796	my ($pkg, @funs) = @$_;	3268	my ($pkg, @funs) = @$_;
1797	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3269	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1815		3287
1816	my $qcode = $code;	3288	my $qcode = $code;
1817	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3289	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1818	$qcode =~ s/\n/\\n/g;	3290	$qcode =~ s/\n/\\n/g;
1819		3291
		3292	%vars = (_dummy => 0) unless %vars;
		3293
		3294	my @res;
1820	local $_;	3295	local $_;
1821	local @safe::cf::_safe_eval_args = values %vars;
1822		3296
1823	my $eval =	3297	my $eval =
1824	"do {\n"	3298	"do {\n"
1825	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3299	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1826	. "#line 0 \"{$qcode}\"\n"	3300	. "#line 0 \"{$qcode}\"\n"
1827	. $code	3301	. $code
1828	. "\n}"	3302	. "\n}"
1829	;	3303	;
1830		3304
		3305	if ($CFG{safe_eval}) {
1831	sub_generation_inc;	3306	sub_generation_inc;
		3307	local @safe::cf::_safe_eval_args = values %vars;
1832	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3308	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1833	sub_generation_inc;	3309	sub_generation_inc;
		3310	} else {
		3311	local @cf::_safe_eval_args = values %vars;
		3312	@res = wantarray ? eval eval : scalar eval $eval;
		3313	}
1834		3314
1835	if ($@) {	3315	if ($@) {
1836	warn "$@";	3316	warn "$@";
1837	warn "while executing safe code '$code'\n";	3317	warn "while executing safe code '$code'\n";
1838	warn "with arguments " . (join " ", %vars) . "\n";	3318	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1857	=cut	3337	=cut
1858		3338
1859	sub register_script_function {	3339	sub register_script_function {
1860	my ($fun, $cb) = @_;	3340	my ($fun, $cb) = @_;
1861		3341
1862	no strict 'refs';	3342	$fun = "safe::$fun" if $CFG{safe_eval};
1863	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3343	*$fun = $safe_hole->wrap ($cb);
1864	}	3344	}
1865		3345
1866	=back	3346	=back
1867		3347
1868	=cut	3348	=cut
1869		3349
1870	#############################################################################	3350	#############################################################################
		3351	# the server's init and main functions
1871		3352
1872	=head2 EXTENSION DATABASE SUPPORT	3353	sub load_facedata($) {
		3354	my ($path) = @_;
1873		3355
1874	Crossfire maintains a very simple database for extension use. It can	3356	# HACK to clear player env face cache, we need some signal framework
1875	currently store anything that can be serialised using Storable, which	3357	# for this (global event?)
1876	excludes objects.	3358	%ext::player_env::MUSIC_FACE_CACHE = ();
1877		3359
1878	The parameter C<$family> should best start with the name of the extension	3360	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1879	using it, it should be unique.
1880		3361
1881	=over 4	3362	warn "loading facedata from $path\n";
1882		3363
1883	=item $hashref = cf::db_get $family	3364	my $facedata;
		3365	0 < aio_load $path, $facedata
		3366	or die "$path: $!";
1884		3367
1885	Return a hashref for use by the extension C<$family>, which can be	3368	$facedata = Coro::Storable::thaw $facedata;
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888		3369
1889	=item $value = cf::db_get $family => $key	3370	$facedata->{version} == 2
		3371	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		3372
1891	Returns a single value from the database	3373	# patch in the exptable
1892		3374	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1893	=item cf::db_put $family => $hashref	3375	$facedata->{resource}{"res/exp_table"} = {
1894		3376	type => FT_RSRC,
1895	Stores the given family hashref into the database. Updates are delayed, if	3377	data => $exp_table,
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3378	hash => (Digest::MD5::md5 $exp_table),
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	$DB = stat $path ? Storable::retrieve $path : { };
1920	}
1921
1922	my $pid;
1923
1924	sub db_save() {
1925	waitpid $pid, 0 if $pid;
1926	if (0 == ($pid = fork)) {
1927	$DB->{_meta}{version} = 1;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});	3379	};
		3380	cf::cede_to_tick;
1944		3381
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}	3382	{
		3383	my $faces = $facedata->{faceinfo};
1949		3384
1950	sub db_get($;$) {	3385	while (my ($face, $info) = each %$faces) {
1951	@_ >= 2	3386	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1952	? $DB->{$_[0]}{$_[1]}
1953	: ($DB->{$_[0]} ||= { })
1954	}
1955		3387
1956	sub db_put($$;$) {	3388	cf::face::set_visibility $idx, $info->{visibility};
1957	if (@_ >= 3) {	3389	cf::face::set_magicmap $idx, $info->{magicmap};
1958	$DB->{$_[0]}{$_[1]} = $_[2];	3390	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1959	} else {	3391	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964		3392
1965	cf::global->attach (	3393	cf::cede_to_tick;
1966	prio => 10000,
1967	on_cleanup => sub {
1968	db_sync;
1969	},	3394	}
1970	);
1971	}
1972		3395
1973	#############################################################################	3396	while (my ($face, $info) = each %$faces) {
1974	# the server's main()	3397	next unless $info->{smooth};
1975		3398
1976	sub cfg_load {	3399	my $idx = cf::face::find $face
		3400	or next;
		3401
		3402	if (my $smooth = cf::face::find $info->{smooth}) {
		3403	cf::face::set_smooth $idx, $smooth;
		3404	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3405	} else {
		3406	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3407	}
		3408
		3409	cf::cede_to_tick;
		3410	}
		3411	}
		3412
		3413	{
		3414	my $anims = $facedata->{animinfo};
		3415
		3416	while (my ($anim, $info) = each %$anims) {
		3417	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3418	cf::cede_to_tick;
		3419	}
		3420
		3421	cf::anim::invalidate_all; # d'oh
		3422	}
		3423
		3424	{
		3425	my $res = $facedata->{resource};
		3426
		3427	while (my ($name, $info) = each %$res) {
		3428	if (defined $info->{type}) {
		3429	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3430
		3431	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3432	cf::face::set_type $idx, $info->{type};
		3433	} else {
		3434	$RESOURCE{$name} = $info;
		3435	}
		3436
		3437	cf::cede_to_tick;
		3438	}
		3439	}
		3440
		3441	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3442
		3443	1
		3444	}
		3445
		3446	cf::global->attach (on_resource_update => sub {
		3447	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3448	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3449
		3450	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3451	my $sound = $soundconf->{compat}[$_]
		3452	or next;
		3453
		3454	my $face = cf::face::find "sound/$sound->[1]";
		3455	cf::sound::set $sound->[0] => $face;
		3456	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3457	}
		3458
		3459	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3460	my $face = cf::face::find "sound/$v";
		3461	cf::sound::set $k => $face;
		3462	}
		3463	}
		3464	});
		3465
		3466	register_exticmd fx_want => sub {
		3467	my ($ns, $want) = @_;
		3468
		3469	while (my ($k, $v) = each %$want) {
		3470	$ns->fx_want ($k, $v);
		3471	}
		3472	};
		3473
		3474	sub load_resource_file($) {
		3475	my $guard = lock_acquire "load_resource_file";
		3476
		3477	my $status = load_resource_file_ $_[0];
		3478	get_slot 0.1, 100;
		3479	cf::arch::commit_load;
		3480
		3481	$status
		3482	}
		3483
		3484	sub reload_regions {
		3485	# HACK to clear player env face cache, we need some signal framework
		3486	# for this (global event?)
		3487	%ext::player_env::MUSIC_FACE_CACHE = ();
		3488
		3489	load_resource_file "$MAPDIR/regions"
		3490	or die "unable to load regions file\n";
		3491
		3492	for (cf::region::list) {
		3493	$_->{match} = qr/$_->{match}/
		3494	if exists $_->{match};
		3495	}
		3496	}
		3497
		3498	sub reload_facedata {
		3499	load_facedata "$DATADIR/facedata"
		3500	or die "unable to load facedata\n";
		3501	}
		3502
		3503	sub reload_archetypes {
		3504	load_resource_file "$DATADIR/archetypes"
		3505	or die "unable to load archetypes\n";
		3506	}
		3507
		3508	sub reload_treasures {
		3509	load_resource_file "$DATADIR/treasures"
		3510	or die "unable to load treasurelists\n";
		3511	}
		3512
		3513	sub reload_resources {
		3514	warn "reloading resource files...\n";
		3515
		3516	reload_facedata;
		3517	reload_archetypes;
		3518	reload_regions;
		3519	reload_treasures;
		3520
		3521	warn "finished reloading resource files\n";
		3522	}
		3523
		3524	sub reload_config {
		3525	warn "reloading config file...\n";
		3526
1977	open my $fh, "<:utf8", cf::confdir . "/config"	3527	open my $fh, "<:utf8", "$CONFDIR/config"
1978	or return;	3528	or return;
1979		3529
1980	local $/;	3530	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	3531	*CFG = YAML::XS::Load scalar <$fh>;
		3532
		3533	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3534
		3535	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3536	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3537
		3538	if (exists $CFG{mlockall}) {
		3539	eval {
		3540	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3541	and die "WARNING: m(un)lockall failed: $!\n";
		3542	};
		3543	warn $@ if $@;
		3544	}
		3545
		3546	warn "finished reloading resource files\n";
		3547	}
		3548
		3549	sub pidfile() {
		3550	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3551	or die "$PIDFILE: $!";
		3552	flock $fh, &Fcntl::LOCK_EX
		3553	or die "$PIDFILE: flock: $!";
		3554	$fh
		3555	}
		3556
		3557	# make sure only one server instance is running at any one time
		3558	sub atomic {
		3559	my $fh = pidfile;
		3560
		3561	my $pid = <$fh>;
		3562	kill 9, $pid if $pid > 0;
		3563
		3564	seek $fh, 0, 0;
		3565	print $fh $$;
		3566	}
		3567
		3568	sub main_loop {
		3569	warn "EV::loop starting\n";
		3570	if (1) {
		3571	EV::loop;
		3572	}
		3573	warn "EV::loop returned\n";
		3574	goto &main_loop unless $REALLY_UNLOOP;
1982	}	3575	}
1983		3576
1984	sub main {	3577	sub main {
		3578	cf::init_globals; # initialise logging
		3579
		3580	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3581	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3582	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3583	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3584
		3585	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3586
1985	# we must not ever block the main coroutine	3587	# we must not ever block the main coroutine
1986	local $Coro::idle = sub {	3588	local $Coro::idle = sub {
1987	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3589	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1988	(Coro::unblock_sub {	3590	(async {
1989	Event::one_event;	3591	$Coro::current->{desc} = "IDLE BUG HANDLER";
1990	})->();	3592	EV::loop EV::LOOP_ONESHOT;
		3593	})->prio (Coro::PRIO_MAX);
1991	};	3594	};
1992		3595
1993	cfg_load;	3596	evthread_start IO::AIO::poll_fileno;
1994	db_load;	3597
		3598	cf::sync_job {
		3599	cf::init_experience;
		3600	cf::init_anim;
		3601	cf::init_attackmess;
		3602	cf::init_dynamic;
		3603
		3604	cf::load_settings;
		3605	cf::load_materials;
		3606
		3607	reload_resources;
		3608	reload_config;
		3609	db_init;
		3610
		3611	cf::init_uuid;
		3612	cf::init_signals;
		3613	cf::init_skills;
		3614
		3615	cf::init_beforeplay;
		3616
		3617	atomic;
		3618
1995	load_extensions;	3619	load_extensions;
1996	Event::loop;	3620
		3621	utime time, time, $RUNTIMEFILE;
		3622
		3623	# no (long-running) fork's whatsoever before this point(!)
		3624	use POSIX ();
		3625	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3626
		3627	(pop @POST_INIT)->(0) while @POST_INIT;
		3628	};
		3629
		3630	cf::object::thawer::errors_are_fatal 0;
		3631	warn "parse errors in files are no longer fatal from this point on.\n";
		3632
		3633	main_loop;
1997	}	3634	}
1998		3635
1999	#############################################################################	3636	#############################################################################
2000	# initialisation	3637	# initialisation and cleanup
2001		3638
		3639	# install some emergency cleanup handlers
		3640	BEGIN {
		3641	our %SIGWATCHER = ();
		3642	for my $signal (qw(INT HUP TERM)) {
		3643	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3644	cf::cleanup "SIG$signal";
		3645	};
		3646	}
		3647	}
		3648
		3649	sub write_runtime_sync {
		3650	my $t0 = AE::time;
		3651
		3652	# first touch the runtime file to show we are still running:
		3653	# the fsync below can take a very very long time.
		3654
		3655	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3656
		3657	my $guard = cf::lock_acquire "write_runtime";
		3658
		3659	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3660	or return;
		3661
		3662	my $value = $cf::RUNTIME + 90 + 10;
		3663	# 10 is the runtime save interval, for a monotonic clock
		3664	# 60 allows for the watchdog to kill the server.
		3665
		3666	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3667	and return;
		3668
		3669	# always fsync - this file is important
		3670	aio_fsync $fh
		3671	and return;
		3672
		3673	# touch it again to show we are up-to-date
		3674	aio_utime $fh, undef, undef;
		3675
		3676	close $fh
		3677	or return;
		3678
		3679	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3680	and return;
		3681
		3682	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3683
		3684	1
		3685	}
		3686
		3687	our $uuid_lock;
		3688	our $uuid_skip;
		3689
		3690	sub write_uuid_sync($) {
		3691	$uuid_skip ||= $_[0];
		3692
		3693	return if $uuid_lock;
		3694	local $uuid_lock = 1;
		3695
		3696	my $uuid = "$LOCALDIR/uuid";
		3697
		3698	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3699	or return;
		3700
		3701	my $value = uuid_seq uuid_cur;
		3702
		3703	unless ($value) {
		3704	warn "cowardly refusing to write zero uuid value!\n";
		3705	return;
		3706	}
		3707
		3708	my $value = uuid_str $value + $uuid_skip;
		3709	$uuid_skip = 0;
		3710
		3711	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3712	and return;
		3713
		3714	# always fsync - this file is important
		3715	aio_fsync $fh
		3716	and return;
		3717
		3718	close $fh
		3719	or return;
		3720
		3721	aio_rename "$uuid~", $uuid
		3722	and return;
		3723
		3724	warn "uuid file written ($value).\n";
		3725
		3726	1
		3727
		3728	}
		3729
		3730	sub write_uuid($$) {
		3731	my ($skip, $sync) = @_;
		3732
		3733	$sync ? write_uuid_sync $skip
		3734	: async { write_uuid_sync $skip };
		3735	}
		3736
		3737	sub emergency_save() {
		3738	my $freeze_guard = cf::freeze_mainloop;
		3739
		3740	warn "emergency_perl_save: enter\n";
		3741
		3742	cf::sync_job {
		3743	# this is a trade-off: we want to be very quick here, so
		3744	# save all maps without fsync, and later call a global sync
		3745	# (which in turn might be very very slow)
		3746	local $USE_FSYNC = 0;
		3747
		3748	# use a peculiar iteration method to avoid tripping on perl
		3749	# refcount bugs in for. also avoids problems with players
		3750	# and maps saved/destroyed asynchronously.
		3751	warn "emergency_perl_save: begin player save\n";
		3752	for my $login (keys %cf::PLAYER) {
		3753	my $pl = $cf::PLAYER{$login} or next;
		3754	$pl->valid or next;
		3755	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3756	$pl->save;
		3757	}
		3758	warn "emergency_perl_save: end player save\n";
		3759
		3760	warn "emergency_perl_save: begin map save\n";
		3761	for my $path (keys %cf::MAP) {
		3762	my $map = $cf::MAP{$path} or next;
		3763	$map->valid or next;
		3764	$map->save;
		3765	}
		3766	warn "emergency_perl_save: end map save\n";
		3767
		3768	warn "emergency_perl_save: begin database checkpoint\n";
		3769	BDB::db_env_txn_checkpoint $DB_ENV;
		3770	warn "emergency_perl_save: end database checkpoint\n";
		3771
		3772	warn "emergency_perl_save: begin write uuid\n";
		3773	write_uuid_sync 1;
		3774	warn "emergency_perl_save: end write uuid\n";
		3775	};
		3776
		3777	warn "emergency_perl_save: starting sync()\n";
		3778	IO::AIO::aio_sync sub {
		3779	warn "emergency_perl_save: finished sync()\n";
		3780	};
		3781
		3782	warn "emergency_perl_save: leave\n";
		3783	}
		3784
		3785	sub post_cleanup {
		3786	my ($make_core) = @_;
		3787
		3788	warn Carp::longmess "post_cleanup backtrace"
		3789	if $make_core;
		3790
		3791	my $fh = pidfile;
		3792	unlink $PIDFILE if <$fh> == $$;
		3793	}
		3794
		3795	# a safer delete_package, copied from Symbol
		3796	sub clear_package($) {
		3797	my $pkg = shift;
		3798
		3799	# expand to full symbol table name if needed
		3800	unless ($pkg =~ /^main::.*::$/) {
		3801	$pkg = "main$pkg" if $pkg =~ /^::/;
		3802	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3803	$pkg .= '::' unless $pkg =~ /::$/;
		3804	}
		3805
		3806	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3807	my $stem_symtab = *{$stem}{HASH};
		3808
		3809	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3810	or return;
		3811
		3812	# clear all symbols
		3813	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3814	for my $name (keys %$leaf_symtab) {
		3815	_gv_clear *{"$pkg$name"};
		3816	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3817	}
		3818	}
		3819
2002	sub reload() {	3820	sub do_reload_perl() {
2003	# can/must only be called in main	3821	# can/must only be called in main
2004	if ($Coro::current != $Coro::main) {	3822	if (in_main) {
2005	warn "can only reload from main coroutine\n";	3823	warn "can only reload from main coroutine";
2006	return;	3824	return;
2007	}	3825	}
2008		3826
		3827	return if $RELOAD++;
		3828
		3829	my $t1 = AE::time;
		3830
		3831	while ($RELOAD) {
2009	warn "reloading...";	3832	warn "reloading...";
2010		3833
2011	local $FREEZE = 1;	3834	warn "entering sync_job";
		3835
		3836	cf::sync_job {
		3837	cf::write_runtime_sync; # external watchdog should not bark
2012	cf::emergency_save;	3838	cf::emergency_save;
		3839	cf::write_runtime_sync; # external watchdog should not bark
2013		3840
2014	eval {	3841	warn "syncing database to disk";
		3842	BDB::db_env_txn_checkpoint $DB_ENV;
		3843
2015	# if anything goes wrong in here, we should simply crash as we already saved	3844	# if anything goes wrong in here, we should simply crash as we already saved
2016		3845
2017	# cancel all watchers	3846	warn "flushing outstanding aio requests";
2018	for (Event::all_watchers) {	3847	while (IO::AIO::nreqs || BDB::nreqs) {
2019	$_->cancel if $_->data & WF_AUTOCANCEL;	3848	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2020	}
2021
2022	# cancel all extension coros
2023	$_->cancel for values %EXT_CORO;
2024	%EXT_CORO = ();
2025
2026	# unload all extensions
2027	for (@exts) {
2028	warn "unloading <$_>";
2029	unload_extension $_;
2030	}
2031
2032	# unload all modules loaded from $LIBDIR
2033	while (my ($k, $v) = each %INC) {
2034	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2035
2036	warn "removing <$k>";
2037	delete $INC{$k};
2038
2039	$k =~ s/\.pm$//;
2040	$k =~ s/\//::/g;
2041
2042	if (my $cb = $k->can ("unload_module")) {
2043	$cb->();
2044	}	3849	}
2045		3850
2046	Symbol::delete_package $k;	3851	warn "cancelling all extension coros";
		3852	$_->cancel for values %EXT_CORO;
		3853	%EXT_CORO = ();
		3854
		3855	warn "removing commands";
		3856	%COMMAND = ();
		3857
		3858	warn "removing ext/exti commands";
		3859	%EXTCMD = ();
		3860	%EXTICMD = ();
		3861
		3862	warn "unloading/nuking all extensions";
		3863	for my $pkg (@EXTS) {
		3864	warn "... unloading $pkg";
		3865
		3866	if (my $cb = $pkg->can ("unload")) {
		3867	eval {
		3868	$cb->($pkg);
		3869	1
		3870	} or warn "$pkg unloaded, but with errors: $@";
		3871	}
		3872
		3873	warn "... clearing $pkg";
		3874	clear_package $pkg;
2047	}	3875	}
2048		3876
2049	# sync database to disk	3877	warn "unloading all perl modules loaded from $LIBDIR";
2050	cf::db_sync;	3878	while (my ($k, $v) = each %INC) {
2051	IO::AIO::flush;	3879	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2052		3880
		3881	warn "... unloading $k";
		3882	delete $INC{$k};
		3883
		3884	$k =~ s/\.pm$//;
		3885	$k =~ s/\//::/g;
		3886
		3887	if (my $cb = $k->can ("unload_module")) {
		3888	$cb->();
		3889	}
		3890
		3891	clear_package $k;
		3892	}
		3893
2053	# get rid of safe::, as good as possible	3894	warn "getting rid of safe::, as good as possible";
2054	Symbol::delete_package "safe::$_"	3895	clear_package "safe::$_"
2055	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3896	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2056		3897
2057	# remove register_script_function callbacks	3898	warn "unloading cf.pm \"a bit\"";
2058	# TODO
2059
2060	# unload cf.pm "a bit"
2061	delete $INC{"cf.pm"};	3899	delete $INC{"cf.pm"};
		3900	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2062		3901
2063	# don't, removes xs symbols, too,	3902	# don't, removes xs symbols, too,
2064	# and global variables created in xs	3903	# and global variables created in xs
2065	#Symbol::delete_package __PACKAGE__;	3904	#clear_package __PACKAGE__;
2066		3905
2067	# reload cf.pm	3906	warn "unload completed, starting to reload now";
		3907
2068	warn "reloading cf.pm";	3908	warn "reloading cf.pm";
2069	require cf;	3909	require cf;
2070	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3910	cf::_connect_to_perl_1;
2071		3911
2072	# load config and database again	3912	warn "loading config and database again";
2073	cf::cfg_load;	3913	cf::reload_config;
2074	cf::db_load;
2075		3914
2076	# load extensions
2077	warn "load extensions";	3915	warn "loading extensions";
2078	cf::load_extensions;	3916	cf::load_extensions;
2079		3917
2080	# reattach attachments to objects	3918	if ($REATTACH_ON_RELOAD) {
		3919	warn "reattaching attachments to objects/players";
		3920	_global_reattach; # objects, sockets
		3921	warn "reattaching attachments to maps";
		3922	reattach $_ for values %MAP;
		3923	warn "reattaching attachments to players";
		3924	reattach $_ for values %PLAYER;
		3925	}
		3926
		3927	warn "running post_init jobs";
		3928	(pop @POST_INIT)->(1) while @POST_INIT;
		3929
		3930	warn "leaving sync_job";
		3931
		3932	1
		3933	} or do {
		3934	warn $@;
		3935	cf::cleanup "error while reloading, exiting.";
		3936	};
		3937
2081	warn "reattach";	3938	warn "reloaded";
2082	_global_reattach;	3939	--$RELOAD;
		3940	}
		3941
		3942	$t1 = AE::time - $t1;
		3943	warn "reload completed in ${t1}s\n";
		3944	};
		3945
		3946	our $RELOAD_WATCHER; # used only during reload
		3947
		3948	sub reload_perl() {
		3949	# doing reload synchronously and two reloads happen back-to-back,
		3950	# coro crashes during coro_state_free->destroy here.
		3951
		3952	$RELOAD_WATCHER ||= cf::async {
		3953	Coro::AIO::aio_wait cache_extensions;
		3954
		3955	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3956	do_reload_perl;
		3957	undef $RELOAD_WATCHER;
		3958	};
2083	};	3959	};
2084
2085	if ($@) {
2086	warn $@;
2087	warn "error while reloading, exiting.";
2088	exit 1;
2089	}
2090
2091	warn "reloaded successfully";
2092	};
2093
2094	#############################################################################
2095
2096	unless ($LINK_MAP) {
2097	$LINK_MAP = cf::map::new;
2098
2099	$LINK_MAP->width (41);
2100	$LINK_MAP->height (41);
2101	$LINK_MAP->alloc;
2102	$LINK_MAP->path ("{link}");
2103	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2104	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2105
2106	# dirty hack because... archetypes are not yet loaded
2107	Event->timer (
2108	after => 2,
2109	cb => sub {
2110	$_[0]->w->cancel;
2111
2112	# provide some exits "home"
2113	my $exit = cf::object::new "exit";
2114
2115	$exit->slaying ($EMERGENCY_POSITION->[0]);
2116	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2117	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2118
2119	$LINK_MAP->insert ($exit->clone, 19, 19);
2120	$LINK_MAP->insert ($exit->clone, 19, 20);
2121	$LINK_MAP->insert ($exit->clone, 19, 21);
2122	$LINK_MAP->insert ($exit->clone, 20, 19);
2123	$LINK_MAP->insert ($exit->clone, 20, 21);
2124	$LINK_MAP->insert ($exit->clone, 21, 19);
2125	$LINK_MAP->insert ($exit->clone, 21, 20);
2126	$LINK_MAP->insert ($exit->clone, 21, 21);
2127
2128	$exit->destroy;
2129	});
2130
2131	$LINK_MAP->{deny_save} = 1;
2132	$LINK_MAP->{deny_reset} = 1;
2133
2134	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2135	}	3960	}
2136
2137	register "<global>", __PACKAGE__;
2138		3961
2139	register_command "reload" => sub {	3962	register_command "reload" => sub {
2140	my ($who, $arg) = @_;	3963	my ($who, $arg) = @_;
2141		3964
2142	if ($who->flag (FLAG_WIZ)) {	3965	if ($who->flag (FLAG_WIZ)) {
2143	$who->message ("start of reload.");
2144	reload;
2145	$who->message ("end of reload.");	3966	$who->message ("reloading server.");
		3967	async {
		3968	$Coro::current->{desc} = "perl_reload";
		3969	reload_perl;
		3970	};
2146	}	3971	}
2147	};	3972	};
2148		3973
2149	unshift @INC, $LIBDIR;	3974	unshift @INC, $LIBDIR;
2150		3975
2151	$TICK_WATCHER = Event->timer (	3976	my $bug_warning = 0;
2152	reentrant => 0,	3977
2153	prio => 0,	3978	our @WAIT_FOR_TICK;
2154	at => $NEXT_TICK || $TICK,	3979	our @WAIT_FOR_TICK_BEGIN;
2155	data => WF_AUTOCANCEL,	3980
2156	cb => sub {	3981	sub wait_for_tick {
2157	unless ($FREEZE) {	3982	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3983
		3984	my $signal = new Coro::Signal;
		3985	push @WAIT_FOR_TICK, $signal;
		3986	$signal->wait;
		3987	}
		3988
		3989	sub wait_for_tick_begin {
		3990	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3991
		3992	my $signal = new Coro::Signal;
		3993	push @WAIT_FOR_TICK_BEGIN, $signal;
		3994	$signal->wait;
		3995	}
		3996
		3997	sub tick {
		3998	if ($Coro::current != $Coro::main) {
		3999	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4000	unless ++$bug_warning > 10;
		4001	return;
		4002	}
		4003
2158	cf::server_tick; # one server iteration	4004	cf::server_tick; # one server iteration
2159	$RUNTIME += $TICK;
2160	}
2161		4005
2162	$NEXT_TICK += $TICK;	4006	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2163		4007
2164	# if we are delayed by four ticks or more, skip them all	4008	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2165	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4009	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2166		4010	Coro::async_pool {
2167	$TICK_WATCHER->at ($NEXT_TICK);	4011	$Coro::current->{desc} = "runtime saver";
2168	$TICK_WATCHER->start;
2169	},
2170	);
2171
2172	IO::AIO::max_poll_time $TICK * 0.2;
2173
2174	Event->io (
2175	fd => IO::AIO::poll_fileno,
2176	poll => 'r',
2177	prio => 5,
2178	data => WF_AUTOCANCEL,
2179	cb => \&IO::AIO::poll_cb,
2180	);
2181
2182	Event->timer (
2183	data => WF_AUTOCANCEL,
2184	after => 0,
2185	interval => 10,
2186	cb => sub {
2187	(Coro::unblock_sub {
2188	write_runtime	4012	write_runtime_sync
2189	or warn "ERROR: unable to write runtime file: $!";	4013	or warn "ERROR: unable to write runtime file: $!";
2190	})->();	4014	};
2191	},	4015	}
2192	);	4016
		4017	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4018	$sig->send;
		4019	}
		4020	while (my $sig = shift @WAIT_FOR_TICK) {
		4021	$sig->send;
		4022	}
		4023
		4024	$LOAD = ($NOW - $TICK_START) / $TICK;
		4025	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4026
		4027	if (0) {
		4028	if ($NEXT_TICK) {
		4029	my $jitter = $TICK_START - $NEXT_TICK;
		4030	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4031	warn "jitter $JITTER\n";#d#
		4032	}
		4033	}
		4034	}
		4035
		4036	{
		4037	# configure BDB
		4038
		4039	BDB::min_parallel 16;
		4040	BDB::max_poll_reqs $TICK * 0.1;
		4041	$AnyEvent::BDB::WATCHER->priority (1);
		4042
		4043	unless ($DB_ENV) {
		4044	$DB_ENV = BDB::db_env_create;
		4045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4046	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4047	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4048	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4049	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4050
		4051	cf::sync_job {
		4052	eval {
		4053	BDB::db_env_open
		4054	$DB_ENV,
		4055	$BDBDIR,
		4056	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4057	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4058	0666;
		4059
		4060	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4061	};
		4062
		4063	cf::cleanup "db_env_open(db): $@" if $@;
		4064	};
		4065	}
		4066
		4067	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4068	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4069	};
		4070	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4071	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4072	};
		4073	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4074	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4075	};
		4076	}
		4077
		4078	{
		4079	# configure IO::AIO
		4080
		4081	IO::AIO::min_parallel 8;
		4082	IO::AIO::max_poll_time $TICK * 0.1;
		4083	undef $AnyEvent::AIO::WATCHER;
		4084	}
		4085
		4086	my $_log_backtrace;
		4087
		4088	sub _log_backtrace {
		4089	my ($msg, @addr) = @_;
		4090
		4091	$msg =~ s/\n//;
		4092
		4093	# limit the # of concurrent backtraces
		4094	if ($_log_backtrace < 2) {
		4095	++$_log_backtrace;
		4096	my $perl_bt = Carp::longmess $msg;
		4097	async {
		4098	$Coro::current->{desc} = "abt $msg";
		4099
		4100	my @bt = fork_call {
		4101	@addr = map { sprintf "%x", $_ } @addr;
		4102	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4103	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4104	or die "addr2line: $!";
		4105
		4106	my @funcs;
		4107	my @res = <$fh>;
		4108	chomp for @res;
		4109	while (@res) {
		4110	my ($func, $line) = splice @res, 0, 2, ();
		4111	push @funcs, "[$func] $line";
		4112	}
		4113
		4114	@funcs
		4115	};
		4116
		4117	LOG llevInfo, "[ABT] $perl_bt\n";
		4118	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4119	LOG llevInfo, "[ABT] $_\n" for @bt;
		4120	--$_log_backtrace;
		4121	};
		4122	} else {
		4123	LOG llevInfo, "[ABT] $msg\n";
		4124	LOG llevInfo, "[ABT] [suppressed]\n";
		4125	}
		4126	}
		4127
		4128	# load additional modules
		4129	require "cf/$_.pm" for @EXTRA_MODULES;
		4130	cf::_connect_to_perl_2;
		4131
		4132	END { cf::emergency_save }
2193		4133
2194	1	4134	1
2195		4135

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