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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.153 by root, Mon Jan 8 23:36:16 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 2.32 ();
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 (Coro::PRIO_MAX); # 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 %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	139	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	140
56	our %EXT_CORO; # coroutines bound to extensions	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;
		168
76	our $EMERGENCY_POSITION;	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::"} };
77		187
78	#############################################################################	188	#############################################################################
79		189
80	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
81		191
…		…
88	=item $cf::RUNTIME	198	=item $cf::RUNTIME
89		199
90	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
91	every server tick.	201	every server tick.
92		202
93	=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
94		206
95	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		211
98	=item $cf::NOW	212	=item $cf::NOW
99		213
100	The time of the last (current) server tick.	214	The time of the last (current) server tick.
101		215
102	=item $cf::TICK	216	=item $cf::TICK
103		217
104	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
105		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
106	=item %cf::CFG	230	=item %cf::CFG
107		231
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	233	from wherever your confdir points to.
110		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
111	=back	253	=back
112		254
113	=cut	255	=cut
114		256
115	BEGIN {	257	$Coro::State::WARNHOOK = sub {
116	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	258	my $msg = join "", @_;
118	utf8::encode $msg;
119		259
120	$msg .= "\n"	260	$msg .= "\n"
121	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
122		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
123	LOG llevError, $msg;	265	LOG llevError, $msg;
124	};	266	};
125	}	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	};
126		281
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		289
134	# 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
135	# within the Safe compartment.	291	# within the Safe compartment.
136	for my $pkg (qw(	292	for my $pkg (qw(
137	cf::global cf::attachable	293	cf::global cf::attachable
138	cf::object cf::object::player	294	cf::object cf::object::player
139	cf::client cf::player	295	cf::client cf::player
140	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
141	cf::map cf::party cf::region	298	cf::party cf::region
142	)) {	299	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	301	}
146		302
147	$Event::DIED = sub {	303	$EV::DIED = sub {
148	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
149	};	305	};
150		306
151	my %ext_pkg;	307	#############################################################################
152	my @exts;
153	my @hook;
154		308
155	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
156		310
157	=over 4	311	=over 4
158		312
159	=cut	313	=item dumpval $ref
160		314
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	315	=cut
162		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
163	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
164		337
165	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
166		339
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
175		341
176	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
177		343
178	=cut	344	=cut
179		345
180	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	347
182	JSON::Syck::Dump $_[0]	348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
		350
		351	=item cf::post_init { BLOCK }
		352
		353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		354	but I<before> the server starts ticking again.
		355
		356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
		358
		359	=cut
		360
		361	sub post_init(&) {
		362	push @POST_INIT, shift;
183	}	363	}
184		364
185	=item cf::lock_wait $string	365	=item cf::lock_wait $string
186		366
187	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
188		368
189	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
190		370
191	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
192	a Coro::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,
193	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
194	returned.	374	returned.
195		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
196	Lock names should begin with a unique identifier (for example, cf::map::find	379	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
198		381
199	=cut	382	=item $locked = cf::lock_active $string
200		383
201	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
202		389
203	sub lock_wait($) {	390	sub lock_wait($) {
204	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
205
206	# wait for lock, if any
207	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;
210	}
211	}	392	}
212		393
213	sub lock_acquire($) {	394	sub lock_acquire($) {
214	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
215		397
216	# wait, to be sure we are not locked	398	sub lock_active($) {
217	lock_wait $key;	399	$LOCKS->count ($_[0]) < 1
218
219	$LOCK{$key} = [];
220
221	Coro::guard {
222	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };
224	}
225	}	400	}
226		401
227	sub freeze_mainloop {	402	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
229		404
230	my $guard = Coro::guard { $TICK_WATCHER->start };	405	&Guard::guard (\&tick_inhibit_dec);
231	$TICK_WATCHER->stop;	406	}
232	$guard	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	$sig->wait;
233	}	488	}
234		489
235	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
236		491
237	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		497
243	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
244		499
245	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
246		501
247	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
250		506
251	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
254	fast or be very important.	510	fast or be very important.
…		…
257		513
258	sub sync_job(&) {	514	sub sync_job(&) {
259	my ($job) = @_;	515	my ($job) = @_;
260		516
261	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
262	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
264		522
265	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	524
267	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
268		526
269	my $busy = 1;	527	my $busy = 1;
270	my @res;	528	my @res;
271		529
272	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	532	@res = eval { $job->() };
274	warn $@ if $@;	533	warn $@ if $@;
275	undef $busy;	534	undef $busy;
276	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
277		536
278	while ($busy) {	537	while ($busy) {
279	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
280	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
281		548
282	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
283	} else {	550	} else {
284	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
285		552
…		…
287	}	554	}
288	}	555	}
289		556
290	=item $coro = cf::async_ext { BLOCK }	557	=item $coro = cf::async_ext { BLOCK }
291		558
292	Like async, but this coro is automcatially being canceled when the	559	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	560	extension calling this is being unloaded.
294		561
295	=cut	562	=cut
296		563
297	sub async_ext(&) {	564	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
306		573
307	$coro	574	$coro
308	}	575	}
309		576
310	sub write_runtime {	577	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		578
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
314	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.
315		583
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	584	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		585
320	aio_fsync $fh	586	sub fork_call(&@) {
321	and return;	587	my ($cb, @args) = @_;
322		588
323	close $fh	589	# we seemingly have to make a local copy of the whole thing,
324	or return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
325		592
326	aio_rename "$runtime~", $runtime	593	my @res = Coro::Util::fork_eval {
327	and return;	594	reset_signals;
		595	&$cb
		596	}, @args;
328		597
		598	wantarray ? @res : $res[-1]
		599	}
		600
		601	sub objinfo {
329	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 => $type });
330	}	775	}
331		776
332	=back	777	=back
333		778
334	=cut	779	=cut
335		780
336	#############################################################################	781	#############################################################################
337		782
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
459		784
460	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
461	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")
462	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
463		788
464	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>
465	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
466	crossfire+).	791	Deliantra).
467		792
468	=over 4	793	=over 4
469		794
470	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
471		796
…		…
515	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
516		841
517	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
518	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
519		844
520	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
521	that are attached at load/instantiate time, thus the need for a name.	846	that are attached at load/instantiate time, thus the need for a name.
522		847
523	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
524		849
525	=over 4	850	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	910	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	911	our @CB_MAP = ();
587		912
588	my %attachment;	913	my %attachment;
589		914
		915	sub cf::attachable::thawer_merge {
		916	# simply override everything except _meta
		917	local $_[0]{_meta};
		918	%{$_[0]} = %{$_[1]};
		919	}
		920
590	sub _attach_cb($$$$) {	921	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	922	my ($registry, $event, $prio, $cb) = @_;
592		923
593	use sort 'stable';	924	use sort 'stable';
594		925
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
629		960
630	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		965
635	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	967	my $pkg = shift @arg;
637		968
638	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
668	}	999	}
669		1000
670	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
671	} else {	1002	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	1004	}
674		1005
675	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
676	}	1007	}
677		1008
…		…
679	if (ref $_[0]) {	1010	if (ref $_[0]) {
680	_object_attach @_;	1011	_object_attach @_;
681	} else {	1012	} else {
682	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
683	}	1014	}
		1015	_recalc_want;
684	};	1016	};
685		1017
686	# all those should be optimised	1018	# all those should be optimised
687	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
692	reattach ($obj);	1024	reattach ($obj);
693	} else {	1025	} else {
694	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
695	}	1027	}
		1028	_recalc_want;
696	};	1029	};
697		1030
698	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
700		1033
…		…
715	";	1048	";
716	die if $@;	1049	die if $@;
717	}	1050	}
718		1051
719	our $override;	1052	our $override;
720	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?
721		1054
722	sub override {	1055	sub override {
723	$override = 1;	1056	$override = 1;
724	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
725	}	1058	}
726		1059
727	sub do_invoke {	1060	sub do_invoke {
728	my $event = shift;	1061	my $event = shift;
729	my $callbacks = shift;	1062	my $callbacks = shift;
730		1063
731	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
732		1065
733	local $override;	1066	local $override;
734		1067
735	for (@$callbacks) {	1068	for (@$callbacks) {
736	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
745	}	1078	}
746		1079
747	0	1080	0
748	}	1081	}
749		1082
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1084
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1086
754	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
755		1088
756	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
757	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
758	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1092
760	=back	1093	=back
761		1094
762	=cut	1095	=cut
763		1096
764	#############################################################################	1097	#############################################################################
765	# 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	}
766		1141
767	sub reattach {	1142	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
769	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
770		1148
771	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
772		1150
773	@$registry = ();	1151	@$registry = ();
774		1152
…		…
789	cf::attachable->attach (	1167	cf::attachable->attach (
790	prio => -1000000,	1168	prio => -1000000,
791	on_instantiate => sub {	1169	on_instantiate => sub {
792	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
793		1171
794	$data = from_json $data;	1172	$data = decode_json $data;
795		1173
796	for (@$data) {	1174	for (@$data) {
797	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
798		1176
799	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1193	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
817		1195
818	sync_job {	1196	sync_job {
819	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
822		1202
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$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;
826	aio_fsync $fh;	1208	aio_fsync $fh;
		1209	}
827	close $fh;	1210	aio_close $fh;
828		1211
829	if (@$objs) {	1212	if (@$objs) {
830	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) {
831	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	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;
834	aio_fsync $fh;	1219	aio_fsync $fh;
		1220	}
835	close $fh;	1221	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
837	}	1223	}
838	} else {	1224	} else {
839	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
840	}	1226	}
841		1227
842	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
843	} else {	1232	} else {
844	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
845	}	1234	}
846	} else {	1235	} else {
847	aio_unlink $filename;	1236	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
849	}	1238	}
850	}	1239	};
851	}	1240	}
852		1241
853	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
855		1244
…		…
867	or return;	1256	or return;
868		1257
869	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
871	or return;	1260	or return;
		1261
872	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
873	}	1264	}
874		1265
		1266	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
877	return ($data, $av);	1271	($data, $av)
878	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
879		1279
880	#############################################################################	1280	#############################################################################
881	# command handling &c	1281	# command handling &c
882		1282
883	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1297	}
898		1298
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1300
901	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.
902		1306
903	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
904	called.	1308	called.
905		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
906	=cut	1321	=cut
907		1322
908	sub register_extcmd {	1323	sub register_extcmd {
909	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
910		1325
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1326	$EXTCMD{$name} = $cb;
915	}	1327	}
		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
916		1336
917	cf::player->attach (	1337	cf::player->attach (
918	on_command => sub {	1338	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
920		1340
921	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
922	or return;	1342	or return;
923		1343
…		…
928	cf::override;	1348	cf::override;
929	},	1349	},
930	on_extcmd => sub {	1350	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
932		1352
933	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1354
935	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
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
941	} else {	1370	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1372	}
944		1373
945	cf::override;	1374	cf::override;
946	},	1375	},
947	);	1376	);
948		1377
949	sub register {	1378	# "readahead" all extensions
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	1379	sub cache_extensions {
956	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
957		1381
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
959	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
960	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}	1385	}
1008	}	1386	};
1009		1387
1010	# remove extcmds	1388	$grp
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	1389	}
1024		1390
1025	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
1026	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1396	next unless -r $path;
1028	eval {	1397
1029	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	}
1030	1	1461	}
1031	} 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	}
1032	}	1472	};
1033	}	1473	}
1034		1474
1035	#############################################################################	1475	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1476
1038	*cf::mapsupport::on_clean = sub {	1477	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1478
1073	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
1074		1480
1075	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
1076		1482
1077	=cut	1483	=cut
1078		1484
1079	package cf::player;	1485	package cf::player;
1080		1486
		1487	use Coro::AIO;
		1488
1081	=head3 cf::player	1489	=head3 cf::player
1082		1490
1083	=over 4	1491	=over 4
1084		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
1085	=item cf::player::find $login	1507	=item cf::player::find $login
1086		1508
1087	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
1088		1510
1089	=cut	1511	=cut
1090		1512
1091	sub playerdir($) {	1513	sub playerdir($) {
1092	cf::localdir	1514	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1516	}
1098		1517
1099	sub path($) {	1518	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1520
1102	(playerdir $login) . "/$login.pl"	1521	(playerdir $login) . "/playerdata"
1103	}	1522	}
1104		1523
1105	sub find_active($) {	1524	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1525	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1526	and $cf::PLAYER{$_[0]}->active
…		…
1110		1529
1111	sub exists($) {	1530	sub exists($) {
1112	my ($login) = @_;	1531	my ($login) = @_;
1113		1532
1114	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1534	or !aio_stat path $login
1116	}	1535	}
1117		1536
1118	sub find($) {	1537	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1539	my $login = $_[0];
1121		1540
1122	my $guard = cf::lock_acquire "user_find:$login";	1541	my $guard = cf::lock_acquire "user_find:$login";
1123		1542
1124	$cf::PLAYER{$_[0]} || do {	1543	$cf::PLAYER{$_[0]} || do {
1125	my $pl = load_pl path $login	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
1126	or return;	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;
1127	$cf::PLAYER{$login} = $pl	1559	$cf::PLAYER{$login} = $pl
1128	}	1560	}
1129	}	1561	}
1130	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($pl, $path) = @_;
		1567
		1568	# restore slots saved in save, below
		1569	my $slots = delete $pl->{_slots};
		1570
		1571	$pl->ob->current_weapon ($slots->[0]);
		1572	$pl->combat_ob ($slots->[1]);
		1573	$pl->ranged_ob ($slots->[2]);
		1574	},
		1575	);
1131		1576
1132	sub save($) {	1577	sub save($) {
1133	my ($pl) = @_;	1578	my ($pl) = @_;
1134		1579
1135	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
1137	my $path = path $pl;	1582	my $path = path $pl;
1138	my $guard = cf::lock_acquire "user_save:$path";	1583	my $guard = cf::lock_acquire "user_save:$path";
1139		1584
1140	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
1141		1586
1142	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
1143	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
1144		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
1145	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
1146	Coro::cede;	1596	cf::cede_to_tick;
1147	}	1597	}
1148		1598
1149	sub new($) {	1599	sub new($) {
1150	my ($login) = @_;	1600	my ($login) = @_;
1151		1601
…		…
1157	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1158		1608
1159	$self	1609	$self
1160	}	1610	}
1161		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
1162	sub quit_character {	1629	sub quit_character {
1163	my ($pl) = @_;	1630	my ($pl) = @_;
1164		1631
		1632	my $name = $pl->ob->name;
		1633
1165	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1166	$pl->password ("*"); # this should lock out the player until we nuked the dir	1635	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1167		1636
1168	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1169	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1640	$pl->ob->check_score;
1170	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1641	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1171	$pl->ns->destroy if $pl->ns;	1642	$pl->ns->destroy if $pl->ns;
1172		1643
1173	my $path = playerdir $pl;	1644	my $path = playerdir $pl;
1174	my $temp = "$path~$cf::RUNTIME~deleting~";	1645	my $temp = "$path~$cf::RUNTIME~deleting~";
1175	Coro::AIO::aio_rename $path, $temp;	1646	aio_rename $path, $temp;
1176	delete $cf::PLAYER{$pl->ob->name};	1647	delete $cf::PLAYER{$pl->ob->name};
1177	$pl->destroy;	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
1178	IO::AIO::aio_rmtree $temp;	1655	IO::AIO::aio_rmtree $temp;
1179	}	1656	}
1180		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
1181	=item $player->ext_reply ($msgid, $msgtype, %msg)	1737	=item $player->ext_reply ($msgid, @msg)
1182		1738
1183	Sends an ext reply to the player.	1739	Sends an ext reply to the player.
1184		1740
1185	=cut	1741	=cut
1186		1742
1187	sub ext_reply($$$%) {	1743	sub ext_reply($$@) {
1188	my ($self, $id, %msg) = @_;	1744	my ($self, $id, @msg) = @_;
1189		1745
1190	$msg{msgid} = $id;	1746	$self->ns->ext_reply ($id, @msg)
1191
1192	$self->send ("ext " . cf::to_json \%msg);
1193	}	1747	}
1194		1748
1195	package cf;	1749	=item $player->ext_msg ($type, @msg)
		1750
		1751	Sends an ext event to the client.
		1752
		1753	=cut
		1754
		1755	sub ext_msg($$@) {
		1756	my ($self, $type, @msg) = @_;
		1757
		1758	$self->ns->ext_msg ($type, @msg);
		1759	}
		1760
		1761	=head3 cf::region
		1762
		1763	=over 4
		1764
		1765	=cut
		1766
		1767	package cf::region;
		1768
		1769	=item cf::region::find_by_path $path
		1770
		1771	Tries to decuce the likely region for a map knowing only its path.
		1772
		1773	=cut
		1774
		1775	sub find_by_path($) {
		1776	my ($path) = @_;
		1777
		1778	$path =~ s/^~[^\/]*//; # skip ~login
		1779
		1780	my ($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
		1790	}
1196		1791
1197	=back	1792	=back
1198
1199		1793
1200	=head3 cf::map	1794	=head3 cf::map
1201		1795
1202	=over 4	1796	=over 4
1203		1797
…		…
1206	package cf::map;	1800	package cf::map;
1207		1801
1208	use Fcntl;	1802	use Fcntl;
1209	use Coro::AIO;	1803	use Coro::AIO;
1210		1804
		1805	use overload
		1806	'""' => \&as_string,
		1807	fallback => 1;
		1808
1211	our $MAX_RESET = 3600;	1809	our $MAX_RESET = 3600;
1212	our $DEFAULT_RESET = 3000;	1810	our $DEFAULT_RESET = 3000;
1213		1811
1214	sub generate_random_map {	1812	sub generate_random_map {
1215	my ($path, $rmp) = @_;	1813	my ($self, $rmp) = @_;
		1814
		1815	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1216		1816
1217	# mit "rum" bekleckern, nicht	1817	# mit "rum" bekleckern, nicht
1218	cf::map::_create_random_map	1818	$self->_create_random_map (
1219	$path,
1220	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1819	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1221	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1820	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1222	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1821	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1223	$rmp->{exit_on_final_map},	1822	$rmp->{exit_on_final_map},
1224	$rmp->{xsize}, $rmp->{ysize},	1823	$rmp->{xsize}, $rmp->{ysize},
1225	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1824	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1226	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1825	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1227	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1826	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1228	$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},
1229	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1828	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1230	(cf::region::find $rmp->{region})	1829	(cf::region::find $rmp->{region}), $rmp->{custom}
		1830	)
1231	}	1831	}
1232		1832
1233	# and all this just because we cannot iterate over	1833	=item cf::map->register ($regex, $prio)
1234	# all maps in C++...
1235	sub change_all_map_light {
1236	my ($change) = @_;
1237		1834
1238	$_->change_map_light ($change)	1835	Register a handler for the map path matching the given regex at the
1239	for grep $_->outdoor, values %cf::MAP;	1836	givne priority (higher is better, built-in handlers have priority 0, the
1240	}	1837	default).
1241		1838
1242	sub try_load_header($) {	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 {
1243	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) = @_;
1244		1978
1245	utf8::encode $path;	1979	utf8::encode $path;
1246	aio_open $path, O_RDONLY, 0	1980	my $f = new_from_file cf::object::thawer $path
1247	or return;	1981	or return;
1248		1982
1249	my $map = cf::map::new	1983	$self->_load_header ($f)
1250	or return;	1984	or return;
1251		1985
1252	# for better error messages only, will be overwritten	1986	local $MAP_LOADING{$self->{path}} = $self;
1253	$map->path ($path);	1987	$f->resolve_delayed_derefs;
1254		1988
1255	$map->load_header ($path)	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
1256	or return;	2032	or return;
		2033	$self->prepare_orig;
		2034	}
1257		2035
1258	$map->{load_path} = $path;	2036	$self->{deny_reset} = 1
		2037	if $self->no_reset;
1259		2038
1260	$map	2039	$self->default_region (cf::region::find_by_path $self->{path})
		2040	unless $self->default_region;
		2041
		2042	1
1261	}	2043	}
1262		2044
1263	sub find;	2045	sub find;
1264	sub find {	2046	sub find {
1265	my ($path, $origin) = @_;	2047	my ($path, $origin) = @_;
1266		2048
1267	#warn "find<$path,$origin>\n";#d#
1268
1269	$path = new cf::path $path, $origin && $origin->path;	2049	$path = normalise $path, $origin && $origin->path;
1270	my $key = $path->as_string;
1271		2050
1272	cf::lock_wait "map_find:$key";	2051	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1273
1274	$cf::MAP{$key} || do {
1275	my $guard = cf::lock_acquire "map_find:$key";	2052	my $guard2 = cf::lock_acquire "map_find:$path";
1276		2053
1277	# do it the slow way	2054	$cf::MAP{$path} || do {
1278	my $map = try_load_header $path->save_path;	2055	my $map = new_from_path cf::map $path
1279
1280	Coro::cede;
1281
1282	if ($map) {
1283	$map->last_access ((delete $map->{last_access})
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$map->{instantiate_time} = $cf::RUNTIME
1287	if $map->{instantiate_time} > $cf::RUNTIME;
1288	} else {
1289	if (my $rmp = $path->random_map_params) {
1290	$map = generate_random_map $key, $rmp;
1291	} else {
1292	$map = try_load_header $path->load_path;
1293	}
1294
1295	$map or return;	2056	or return;
1296		2057
1297	$map->{load_original} = 1;
1298	$map->{instantiate_time} = $cf::RUNTIME;
1299	$map->last_access ($cf::RUNTIME);
1300	$map->instantiate;
1301
1302	# per-player maps become, after loading, normal maps
1303	$map->per_player (0) if $path->{user_rel};
1304	}
1305
1306	$map->path ($key);
1307	$map->{path} = $path;
1308	$map->{last_save} = $cf::RUNTIME;	2058	$map->{last_save} = $cf::RUNTIME;
1309		2059
1310	Coro::cede;	2060	$map->load_header
		2061	or return;
1311		2062
1312	if ($map->should_reset) {	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;
1313	$map->reset;	2068	$map->reset;
1314	undef $guard;
1315	$map = find $path	2069	return find $path;
1316	or return;
1317	}	2070	}
1318		2071
1319	$cf::MAP{$key} = $map	2072	$cf::MAP{$path} = $map
1320	}	2073	}
1321	}	2074	}
		2075
		2076	sub pre_load { }
		2077	#sub post_load { } # XS
1322		2078
1323	sub load {	2079	sub load {
1324	my ($self) = @_;	2080	my ($self) = @_;
1325		2081
		2082	local $self->{deny_reset} = 1; # loading can take a long time
		2083
1326	my $path = $self->{path};	2084	my $path = $self->{path};
		2085
		2086	{
1327	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2087	my $guard = cf::lock_acquire "map_data:$path";
1328		2088
		2089	return unless $self->valid;
1329	return if $self->in_memory != cf::MAP_SWAPPED;	2090	return unless $self->in_memory == cf::MAP_SWAPPED;
1330		2091
1331	$self->in_memory (cf::MAP_LOADING);	2092	$self->in_memory (cf::MAP_LOADING);
1332		2093
1333	$self->alloc;	2094	$self->alloc;
1334	$self->load_objects ($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)
1335	or return;	2102	or return;
1336		2103
1337	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2104	$self->post_load_original
1338	if delete $self->{load_original};	2105	if delete $self->{load_original};
1339		2106
1340	if (my $uniq = $path->uniq_path) {	2107	if (my $uniq = $self->uniq_path) {
1341	utf8::encode $uniq;	2108	utf8::encode $uniq;
1342	if (aio_open $uniq, O_RDONLY, 0) {	2109	unless (aio_stat $uniq) {
		2110	if (my $f = new_from_file cf::object::thawer $uniq) {
1343	$self->clear_unique_items;	2111	$self->clear_unique_items;
1344	$self->load_objects ($uniq, 0);	2112	$self->_load_objects ($f);
		2113	$f->resolve_delayed_derefs;
		2114	}
1345	}	2115	}
1346	}	2116	}
1347		2117
1348	Coro::cede;	2118	$f->resolve_delayed_derefs;
1349		2119
		2120	cf::cede_to_tick;
1350	# now do the right thing for maps	2121	# now do the right thing for maps
1351	$self->link_multipart_objects;	2122	$self->link_multipart_objects;
1352
1353	if ($self->{path}->is_style_map) {
1354	$self->{deny_save} = 1;
1355	$self->{deny_reset} = 1;
1356	} else {
1357	$self->fix_auto_apply;
1358	$self->decay_objects;
1359	$self->update_buttons;
1360	$self->set_darkness_map;
1361	$self->difficulty ($self->estimate_difficulty)	2123	$self->difficulty ($self->estimate_difficulty)
1362	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;
1363	$self->activate;	2132	$self->activate;
1364	}	2133	}
1365		2134
1366	Coro::cede;	2135	$self->{last_save} = $cf::RUNTIME;
		2136	$self->last_access ($cf::RUNTIME);
1367		2137
1368	$self->in_memory (cf::MAP_IN_MEMORY);	2138	$self->in_memory (cf::MAP_ACTIVE);
		2139	}
		2140
		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	$neigh->load;
		2183	}
1369	}	2184	}
1370		2185
1371	sub find_sync {	2186	sub find_sync {
1372	my ($path, $origin) = @_;	2187	my ($path, $origin) = @_;
1373		2188
1374	cf::sync_job { cf::map::find $path, $origin }	2189	cf::sync_job { find $path, $origin }
1375	}	2190	}
1376		2191
1377	sub do_load_sync {	2192	sub do_load_sync {
1378	my ($map) = @_;	2193	my ($map) = @_;
1379		2194
		2195	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2196	if $Coro::current == $Coro::main;
		2197
1380	cf::sync_job { $map->load };	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
		2251	cf::async {
		2252	$Coro::current->{desc} = "map player save";
		2253	$_->contr->save for $self->players;
		2254	};
		2255
		2256	cf::get_slot 0.02;
		2257
		2258	if ($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);
		2263	}
1381	}	2264	}
1382		2265
1383	sub save {	2266	sub save {
1384	my ($self) = @_;	2267	my ($self) = @_;
1385		2268
1386	my $lock = cf::lock_acquire "map_data:" . $self->path;	2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
1387		2270
1388	$self->{last_save} = $cf::RUNTIME;	2271	$self->_save;
1389
1390	return unless $self->dirty;
1391
1392	my $save = $self->{path}->save_path; utf8::encode $save;
1393	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1394
1395	$self->{load_path} = $save;
1396
1397	return if $self->{deny_save};
1398
1399	local $self->{last_access} = $self->last_access;#d#
1400
1401	cf::async {
1402	$_->contr->save for $self->players;
1403	};
1404
1405	if ($uniq) {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1407	$self->save_objects ($uniq, cf::IO_UNIQUES);
1408	} else {
1409	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1410	}
1411	}	2272	}
1412		2273
1413	sub swap_out {	2274	sub swap_out {
1414	my ($self) = @_;	2275	my ($self) = @_;
1415		2276
1416	# save first because save cedes
1417	$self->save;
1418
1419	my $lock = cf::lock_acquire "map_data:" . $self->path;	2277	my $lock = cf::lock_acquire "map_data:$self->{path}";
1420		2278
		2279	return if $self->in_memory != cf::MAP_ACTIVE;
		2280	return if $self->{deny_save};
1421	return if $self->players;	2281	return if $self->players;
1422	return if $self->in_memory != cf::MAP_IN_MEMORY;
1423	return if $self->{deny_save};
1424		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
		2289	$self->_save;
		2290
		2291	# then free the map
1425	$self->clear;	2292	$self->clear;
1426	$self->in_memory (cf::MAP_SWAPPED);
1427	}	2293	}
1428		2294
1429	sub reset_at {	2295	sub reset_at {
1430	my ($self) = @_;	2296	my ($self) = @_;
1431		2297
1432	# TODO: safety, remove and allow resettable per-player maps	2298	# TODO: safety, remove and allow resettable per-player maps
1433	return 1e99 if $self->{path}{user_rel};
1434	return 1e99 if $self->{deny_reset};	2299	return 1e99 if $self->{deny_reset};
1435		2300
1436	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2301	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1437	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2302	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1438		2303
…		…
1443	my ($self) = @_;	2308	my ($self) = @_;
1444		2309
1445	$self->reset_at <= $cf::RUNTIME	2310	$self->reset_at <= $cf::RUNTIME
1446	}	2311	}
1447		2312
1448	sub unlink_save {
1449	my ($self) = @_;
1450
1451	utf8::encode (my $save = $self->{path}->save_path);
1452	aioreq_pri 3; IO::AIO::aio_unlink $save;
1453	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1454	}
1455
1456	sub rename {
1457	my ($self, $new_path) = @_;
1458
1459	$self->unlink_save;
1460
1461	delete $cf::MAP{$self->path};
1462	$self->{path} = new cf::path $new_path;
1463	$self->path ($self->{path}->as_string);
1464	$cf::MAP{$self->path} = $self;
1465
1466	$self->save;
1467	}
1468
1469	sub reset {	2313	sub reset {
1470	my ($self) = @_;	2314	my ($self) = @_;
1471		2315
1472	my $lock = cf::lock_acquire "map_data:" . $self->path;	2316	my $lock = cf::lock_acquire "map_data:$self->{path}";
1473		2317
1474	return if $self->players;	2318	return if $self->players;
1475	return if $self->{path}{user_rel};#d#
1476		2319
1477	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	}
1478		2331
1479	delete $cf::MAP{$self->path};	2332	delete $cf::MAP{$self->path};
1480		2333
		2334	$self->deactivate;
1481	$_->clear_links_to ($self) for values %cf::MAP;	2335	$_->clear_links_to ($self) for values %cf::MAP;
		2336	$self->clear;
1482		2337
1483	$self->unlink_save;	2338	$self->unlink_save;
1484	$self->destroy;	2339	$self->destroy;
1485	}	2340	}
1486		2341
1487	my $nuke_counter = "aaaa";	2342	my $nuke_counter = "aaaa";
1488		2343
1489	sub nuke {	2344	sub nuke {
1490	my ($self) = @_;	2345	my ($self) = @_;
1491		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};
1492	$self->{deny_save} = 1;	2356	$self->{deny_save} = 1;
1493	$self->reset_timeout (1);	2357	$self->reset_timeout (1);
1494	$self->rename ("{nuke}/" . ($nuke_counter++));	2358	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2359
		2360	$cf::MAP{$self->path} = $self;
		2361	}
		2362
1495	$self->reset; # polite request, might not happen	2363	$self->reset; # polite request, might not happen
1496	}	2364	}
1497		2365
1498	sub customise_for {	2366	=item $maps = cf::map::tmp_maps
1499	my ($map, $ob) = @_;
1500		2367
1501	if ($map->per_player) {	2368	Returns an arrayref with all map paths of currently instantiated and saved
1502	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2369	maps. May block.
		2370
		2371	=cut
		2372
		2373	sub tmp_maps() {
1503	}	2374	[
1504		2375	map {
1505	$map	2376	utf8::decode $_;
		2377	/\.map$/
		2378	? normalise $_
		2379	: ()
		2380	} @{ aio_readdir $TMPDIR or [] }
		2381	]
1506	}	2382	}
1507		2383
1508	sub emergency_save {	2384	=item $maps = cf::map::random_maps
1509	my $freeze_guard = cf::freeze_mainloop;
1510		2385
1511	warn "enter emergency perl save\n";	2386	Returns an arrayref with all map paths of currently instantiated and saved
		2387	random maps. May block.
1512		2388
1513	cf::sync_job {	2389	=cut
1514	warn "begin emergency player save\n";
1515	$_->save for values %cf::PLAYER;
1516	warn "end emergency player save\n";
1517		2390
1518	warn "begin emergency map save\n";	2391	sub random_maps() {
1519	$_->save for values %cf::MAP;	2392	[
1520	warn "end emergency map save\n";	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;
1521	};	2448	}
1522		2449
1523	warn "leave emergency perl 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	}
1524	}	2505	}
1525		2506
1526	package cf;	2507	package cf;
1527		2508
1528	=back	2509	=back
1529
1530		2510
1531	=head3 cf::object::player	2511	=head3 cf::object::player
1532		2512
1533	=over 4	2513	=over 4
1534		2514
…		…
1537	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>
1538	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
1539	dialogue with the given NPC character.	2519	dialogue with the given NPC character.
1540		2520
1541	=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	};
1542		2536
1543	# rough implementation of a future "reply" method that works	2537	# rough implementation of a future "reply" method that works
1544	# with dialog boxes.	2538	# with dialog boxes.
1545	#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
1546	sub cf::object::player::reply($$$;$) {	2540	sub cf::object::player::reply($$$;$) {
…		…
1548		2542
1549	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2543	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1550		2544
1551	if ($self->{record_replies}) {	2545	if ($self->{record_replies}) {
1552	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2546	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2547
1553	} 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 {
1554	$msg = $npc->name . " says: $msg" if $npc;	2556	$msg = $npc->name . " says: $msg" if $npc;
1555	$self->message ($msg, $flags);	2557	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2558	}
1556	}	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 (@_);
1557	}	2570	}
1558		2571
1559	=item $player_object->may ("access")	2572	=item $player_object->may ("access")
1560		2573
1561	Returns wether the given player is authorized to access resource "access"	2574	Returns wether the given player is authorized to access resource "access"
…		…
1574		2587
1575	=item $player_object->enter_link	2588	=item $player_object->enter_link
1576		2589
1577	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}>).
1578		2591
1579	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.
1580	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.
1581		2598
1582	=item $player_object->leave_link ($map, $x, $y)	2599	=item $player_object->leave_link ($map, $x, $y)
1583		2600
1584	Moves the player out of the specila link map onto the given map. If the	2601	Moves the player out of the special C<{link}> map onto the specified
1585	map is not valid (or omitted), the player will be moved back to the	2602	map. If the map is not valid (or omitted), the player will be moved back
1586	location he/she was before the call to C<enter_link>, or, if that fails,	2603	to the location he/she was before the call to C<enter_link>, or, if that
1587	to the emergency map position.	2604	fails, to the emergency map position.
1588		2605
1589	Might block.	2606	Might block.
1590		2607
1591	=cut	2608	=cut
		2609
		2610	sub link_map {
		2611	unless ($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	$LINK_MAP
		2618	}
1592		2619
1593	sub cf::object::player::enter_link {	2620	sub cf::object::player::enter_link {
1594	my ($self) = @_;	2621	my ($self) = @_;
1595		2622
1596	$self->deactivate_recursive;	2623	$self->deactivate_recursive;
1597		2624
1598	return if $self->map == $LINK_MAP;	2625	++$self->{_link_recursion};
		2626
		2627	return if UNIVERSAL::isa $self->map, "ext::map_link";
1599		2628
1600	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2629	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1601	if $self->map;	2630	if $self->map && $self->map->{path} ne "{link}";
1602		2631
1603	$self->enter_map ($LINK_MAP, 20, 20);	2632	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1604	}	2633	}
1605		2634
1606	sub cf::object::player::leave_link {	2635	sub cf::object::player::leave_link {
1607	my ($self, $map, $x, $y) = @_;	2636	my ($self, $map, $x, $y) = @_;
		2637
		2638	return unless $self->contr->active;
1608		2639
1609	my $link_pos = delete $self->{_link_pos};	2640	my $link_pos = delete $self->{_link_pos};
1610		2641
1611	unless ($map) {	2642	unless ($map) {
1612	# restore original map position	2643	# restore original map position
…		…
1623	($x, $y) = (-1, -1)	2654	($x, $y) = (-1, -1)
1624	unless (defined $x) && (defined $y);	2655	unless (defined $x) && (defined $y);
1625		2656
1626	# use -1 or undef as default coordinates, not 0, 0	2657	# use -1 or undef as default coordinates, not 0, 0
1627	($x, $y) = ($map->enter_x, $map->enter_y)	2658	($x, $y) = ($map->enter_x, $map->enter_y)
1628	if $x <=0 && $y <= 0;	2659	if $x <= 0 && $y <= 0;
1629		2660
1630	$map->load;	2661	$map->load;
		2662	$map->load_neighbours;
1631		2663
1632	return unless $self->contr->active;	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
1633	$self->activate_recursive;	2671	$self->activate_recursive;
1634	$self->enter_map ($map, $x, $y);
1635	}
1636
1637	cf::player->attach (
1638	on_logout => sub {
1639	my ($pl) = @_;
1640
1641	# abort map switching before logout
1642	if ($pl->ob->{_link_pos}) {
1643	cf::sync_job {
1644	$pl->ob->leave_link
1645	};
1646	}
1647	},	2672	}
1648	on_login => sub {
1649	my ($pl) = @_;
1650		2673
1651	# try to abort aborted map switching on player login :)	2674	}
1652	# should happen only on crashes
1653	if ($pl->ob->{_link_pos}) {
1654	$pl->ob->enter_link;
1655	(async {
1656	# we need this sleep as the login has a concurrent enter_exit running
1657	# and this sleep increases chances of the player not ending up in scorn
1658	$pl->ob->reply (undef,
1659	"There was an internal problem at your last logout, "
1660	. "the server will try to bring you to your intended destination in a second.",
1661	cf::NDI_RED);
1662	Coro::Timer::sleep 1;
1663	$pl->ob->leave_link;
1664	})->prio (2);
1665	}
1666	},
1667	);
1668		2675
1669	=item $player_object->goto ($path, $x, $y)	2676	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1670		2677
		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.
		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
1671	=cut	2687	=cut
		2688
		2689	our $GOTOGEN;
1672		2690
1673	sub cf::object::player::goto {	2691	sub cf::object::player::goto {
1674	my ($self, $path, $x, $y) = @_;	2692	my ($self, $path, $x, $y, $check, $done) = @_;
1675		2693
1676	$path = new cf::path $path;	2694	if ($self->{_link_recursion} >= $MAX_LINKS) {
1677	$path ne "/" or Carp::cluck ("oy");#d#	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;
1678		2702
1679	$self->enter_link;	2703	$self->enter_link;
1680		2704
1681	(async {	2705	(async {
1682	my $map = cf::map::find $path->as_string;	2706	$Coro::current->{desc} = "player::goto $path $x $y";
		2707
		2708	# *tag paths override both path and x|y
		2709	if ($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) {
1683	$map = $map->customise_for ($self) if $map;	2731	$map = $map->customise_for ($self);
1684		2732	$map = $check->($map, $x, $y, $self) if $check && $map;
1685	# warn "entering ", $map->path, " at ($x, $y)\n"	2733	} else {
1686	# if $map;
1687
1688	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2734	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2735	}
1689		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};
1690	$self->leave_link ($map, $x, $y);	2747	$self->leave_link ($map, $x, $y);
		2748	}
		2749
		2750	$done->($self) if $done;
1691	})->prio (1);	2751	})->prio (1);
1692	}	2752	}
1693		2753
1694	=item $player_object->enter_exit ($exit_object)	2754	=item $player_object->enter_exit ($exit_object)
1695		2755
…		…
1697		2757
1698	sub parse_random_map_params {	2758	sub parse_random_map_params {
1699	my ($spec) = @_;	2759	my ($spec) = @_;
1700		2760
1701	my $rmp = { # defaults	2761	my $rmp = { # defaults
1702	xsize => 10,	2762	xsize => (cf::rndm 15, 40),
1703	ysize => 10,	2763	ysize => (cf::rndm 15, 40),
		2764	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2765	#layout => string,
1704	};	2766	};
1705		2767
1706	for (split /\n/, $spec) {	2768	for (split /\n/, $spec) {
1707	my ($k, $v) = split /\s+/, $_, 2;	2769	my ($k, $v) = split /\s+/, $_, 2;
1708		2770
…		…
1720	# that depends on the exit object	2782	# that depends on the exit object
1721		2783
1722	my $rmp = parse_random_map_params $exit->msg;	2784	my $rmp = parse_random_map_params $exit->msg;
1723		2785
1724	if ($exit->map) {	2786	if ($exit->map) {
1725	$rmp->{region} = $exit->map->region_name;	2787	$rmp->{region} = $exit->region->name;
1726	$rmp->{origin_map} = $exit->map->path;	2788	$rmp->{origin_map} = $exit->map->path;
1727	$rmp->{origin_x} = $exit->x;	2789	$rmp->{origin_x} = $exit->x;
1728	$rmp->{origin_y} = $exit->y;	2790	$rmp->{origin_y} = $exit->y;
		2791
		2792	$exit->map->touch;
1729	}	2793	}
1730		2794
1731	$rmp->{random_seed} ||= $exit->random_seed;	2795	$rmp->{random_seed} ||= $exit->random_seed;
1732		2796
1733	my $data = cf::to_json $rmp;	2797	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1734	my $md5 = Digest::MD5::md5_hex $data;	2798	my $md5 = Digest::MD5::md5_hex $data;
		2799	my $meta = "$RANDOMDIR/$md5.meta";
1735		2800
1736	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) {
1737	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;
1738		2805
		2806	my $slaying = "?random/$md5";
		2807
		2808	if ($exit->valid) {
1739	$exit->slaying ("?random/$md5");	2809	$exit->slaying ("?random/$md5");
1740	$exit->msg (undef);	2810	$exit->msg (undef);
		2811	}
1741	}	2812	}
1742	}	2813	}
1743		2814
1744	sub cf::object::player::enter_exit {	2815	sub cf::object::player::enter_exit {
1745	my ($self, $exit) = @_;	2816	my ($self, $exit) = @_;
…		…
1747	return unless $self->type == cf::PLAYER;	2818	return unless $self->type == cf::PLAYER;
1748		2819
1749	$self->enter_link;	2820	$self->enter_link;
1750		2821
1751	(async {	2822	(async {
1752	$self->deactivate_recursive; # just to be sure	2823	$Coro::current->{desc} = "enter_exit";
		2824
1753	unless (eval {	2825	unless (eval {
		2826	$self->deactivate_recursive; # just to be sure
		2827
		2828	# random map handling
		2829	{
		2830	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2831
1754	prepare_random_map $exit	2832	prepare_random_map $exit
1755	if $exit->slaying eq "/!";	2833	if $exit->slaying eq "/!";
		2834	}
1756		2835
1757	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;
1758	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2837	my $x = $exit->stats->hp;
		2838	my $y = $exit->stats->sp;
1759		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
1760	1;	2846	1
1761	}) {	2847	}) {
1762	$self->message ("Something went wrong deep within the crossfire server. "	2848	$self->message ("Something went wrong deep within the deliantra server. "
1763	. "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. "
1764	. "Please report this to the dungeon master",	2850	. "Please report this to the dungeon master!",
1765	cf::NDI_UNIQUE | cf::NDI_RED);	2851	cf::NDI_UNIQUE | cf::NDI_RED);
1766		2852
1767	warn "ERROR in enter_exit: $@";	2853	warn "ERROR in enter_exit: $@";
1768	$self->leave_link;	2854	$self->leave_link;
1769	}	2855	}
1770	})->prio (1);	2856	})->prio (1);
…		…
1783		2869
1784	sub cf::client::send_drawinfo {	2870	sub cf::client::send_drawinfo {
1785	my ($self, $text, $flags) = @_;	2871	my ($self, $text, $flags) = @_;
1786		2872
1787	utf8::encode $text;	2873	utf8::encode $text;
1788	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2874	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1789	}	2875	}
1790		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	}
1791		3098
1792	=item $success = $client->query ($flags, "text", \&cb)	3099	=item $success = $client->query ($flags, "text", \&cb)
1793		3100
1794	Queues a query to the client, calling the given callback with	3101	Queues a query to the client, calling the given callback with
1795	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3102	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1796	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3103	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1797		3104
1798	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
1799	reliable at some point in the future.	3106	become reliable at some point in the future.
1800		3107
1801	=cut	3108	=cut
1802		3109
1803	sub cf::client::query {	3110	sub cf::client::query {
1804	my ($self, $flags, $text, $cb) = @_;	3111	my ($self, $flags, $text, $cb) = @_;
…		…
1812	utf8::encode $text;	3119	utf8::encode $text;
1813	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3120	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1814		3121
1815	$self->send_packet ($self->{query_queue}[0][0])	3122	$self->send_packet ($self->{query_queue}[0][0])
1816	if @{ $self->{query_queue} } == 1;	3123	if @{ $self->{query_queue} } == 1;
		3124
		3125	1
1817	}	3126	}
1818		3127
1819	cf::client->attach (	3128	cf::client->attach (
		3129	on_connect => sub {
		3130	my ($ns) = @_;
		3131
		3132	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3133	},
1820	on_reply => sub {	3134	on_reply => sub {
1821	my ($ns, $msg) = @_;	3135	my ($ns, $msg) = @_;
1822		3136
1823	# this weird shuffling is so that direct followup queries	3137	# this weird shuffling is so that direct followup queries
1824	# get handled first	3138	# get handled first
1825	my $queue = delete $ns->{query_queue}	3139	my $queue = delete $ns->{query_queue}
1826	or return; # be conservative, not sure how that can happen, but we saw a crash here	3140	or return; # be conservative, not sure how that can happen, but we saw a crash here
1827		3141
1828	(shift @$queue)->[1]->($msg);	3142	(shift @$queue)->[1]->($msg);
		3143	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1829		3144
1830	push @{ $ns->{query_queue} }, @$queue;	3145	push @{ $ns->{query_queue} }, @$queue;
1831		3146
1832	if (@{ $ns->{query_queue} } == @$queue) {	3147	if (@{ $ns->{query_queue} } == @$queue) {
1833	if (@$queue) {	3148	if (@$queue) {
…		…
1835	} else {	3150	} else {
1836	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3151	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1837	}	3152	}
1838	}	3153	}
1839	},	3154	},
		3155	on_exticmd => sub {
		3156	my ($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	},
1840	);	3181	);
1841		3182
1842	=item $client->async (\&cb)	3183	=item $client->async (\&cb)
1843		3184
1844	Create a new coroutine, running the specified callback. The coroutine will	3185	Create a new coroutine, running the specified callback. The coroutine will
…		…
1860		3201
1861	$coro	3202	$coro
1862	}	3203	}
1863		3204
1864	cf::client->attach (	3205	cf::client->attach (
1865	on_destroy => sub {	3206	on_client_destroy => sub {
1866	my ($ns) = @_;	3207	my ($ns) = @_;
1867		3208
1868	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3209	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1869	},	3210	},
1870	);	3211	);
…		…
1885	our $safe = new Safe "safe";	3226	our $safe = new Safe "safe";
1886	our $safe_hole = new Safe::Hole;	3227	our $safe_hole = new Safe::Hole;
1887		3228
1888	$SIG{FPE} = 'IGNORE';	3229	$SIG{FPE} = 'IGNORE';
1889		3230
1890	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3231	$safe->permit_only (Opcode::opset qw(
		3232	:base_core :base_mem :base_orig :base_math :base_loop
		3233	grepstart grepwhile mapstart mapwhile
		3234	sort time
		3235	));
1891		3236
1892	# here we export the classes and methods available to script code	3237	# here we export the classes and methods available to script code
1893		3238
1894	=pod	3239	=pod
1895		3240
1896	The following fucntions and emthods are available within a safe environment:	3241	The following functions and methods are available within a safe environment:
1897		3242
1898	cf::object contr pay_amount pay_player map	3243	cf::object
		3244	contr pay_amount pay_player map x y force_find force_add destroy
		3245	insert remove name archname title slaying race decrease split
		3246	value
		3247
1899	cf::object::player player	3248	cf::object::player
1900	cf::player peaceful	3249	player
1901	cf::map trigger	3250
		3251	cf::player
		3252	peaceful
		3253
		3254	cf::map
		3255	trigger
1902		3256
1903	=cut	3257	=cut
1904		3258
1905	for (	3259	for (
1906	["cf::object" => qw(contr pay_amount pay_player map)],	3260	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3261	insert remove inv nrof name archname title slaying race
		3262	decrease split destroy change_exp value msg lore send_msg)],
1907	["cf::object::player" => qw(player)],	3263	["cf::object::player" => qw(player)],
1908	["cf::player" => qw(peaceful)],	3264	["cf::player" => qw(peaceful send_msg)],
1909	["cf::map" => qw(trigger)],	3265	["cf::map" => qw(trigger)],
1910	) {	3266	) {
1911	no strict 'refs';	3267	no strict 'refs';
1912	my ($pkg, @funs) = @$_;	3268	my ($pkg, @funs) = @$_;
1913	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3269	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1931		3287
1932	my $qcode = $code;	3288	my $qcode = $code;
1933	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3289	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1934	$qcode =~ s/\n/\\n/g;	3290	$qcode =~ s/\n/\\n/g;
1935		3291
		3292	%vars = (_dummy => 0) unless %vars;
		3293
		3294	my @res;
1936	local $_;	3295	local $_;
1937	local @safe::cf::_safe_eval_args = values %vars;
1938		3296
1939	my $eval =	3297	my $eval =
1940	"do {\n"	3298	"do {\n"
1941	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3299	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1942	. "#line 0 \"{$qcode}\"\n"	3300	. "#line 0 \"{$qcode}\"\n"
1943	. $code	3301	. $code
1944	. "\n}"	3302	. "\n}"
1945	;	3303	;
1946		3304
		3305	if ($CFG{safe_eval}) {
1947	sub_generation_inc;	3306	sub_generation_inc;
		3307	local @safe::cf::_safe_eval_args = values %vars;
1948	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3308	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1949	sub_generation_inc;	3309	sub_generation_inc;
		3310	} else {
		3311	local @cf::_safe_eval_args = values %vars;
		3312	@res = wantarray ? eval eval : scalar eval $eval;
		3313	}
1950		3314
1951	if ($@) {	3315	if ($@) {
1952	warn "$@";	3316	warn "$@";
1953	warn "while executing safe code '$code'\n";	3317	warn "while executing safe code '$code'\n";
1954	warn "with arguments " . (join " ", %vars) . "\n";	3318	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1973	=cut	3337	=cut
1974		3338
1975	sub register_script_function {	3339	sub register_script_function {
1976	my ($fun, $cb) = @_;	3340	my ($fun, $cb) = @_;
1977		3341
1978	no strict 'refs';	3342	$fun = "safe::$fun" if $CFG{safe_eval};
1979	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3343	*$fun = $safe_hole->wrap ($cb);
1980	}	3344	}
1981		3345
1982	=back	3346	=back
1983		3347
1984	=cut	3348	=cut
1985		3349
1986	#############################################################################	3350	#############################################################################
		3351	# the server's init and main functions
1987		3352
1988	=head2 EXTENSION DATABASE SUPPORT	3353	sub load_facedata($) {
		3354	my ($path) = @_;
1989		3355
1990	Crossfire maintains a very simple database for extension use. It can	3356	# HACK to clear player env face cache, we need some signal framework
1991	currently store anything that can be serialised using Storable, which	3357	# for this (global event?)
1992	excludes objects.	3358	%ext::player_env::MUSIC_FACE_CACHE = ();
1993		3359
1994	The parameter C<$family> should best start with the name of the extension	3360	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1995	using it, it should be unique.
1996		3361
1997	=over 4	3362	warn "loading facedata from $path\n";
1998		3363
1999	=item $hashref = cf::db_get $family	3364	my $facedata;
		3365	0 < aio_load $path, $facedata
		3366	or die "$path: $!";
2000		3367
2001	Return a hashref for use by the extension C<$family>, which can be	3368	$facedata = Coro::Storable::thaw $facedata;
2002	modified. After modifications, you have to call C<cf::db_dirty> or
2003	C<cf::db_sync>.
2004		3369
2005	=item $value = cf::db_get $family => $key	3370	$facedata->{version} == 2
		3371	or cf::cleanup "$path: version mismatch, cannot proceed.";
2006		3372
2007	Returns a single value from the database	3373	# patch in the exptable
2008		3374	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2009	=item cf::db_put $family => $hashref	3375	$facedata->{resource}{"res/exp_table"} = {
2010		3376	type => FT_RSRC,
2011	Stores the given family hashref into the database. Updates are delayed, if	3377	data => $exp_table,
2012	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3378	hash => (Digest::MD5::md5 $exp_table),
2013
2014	=item cf::db_put $family => $key => $value
2015
2016	Stores the given C<$value> in the family hash. Updates are delayed, if you
2017	want the data to be synced to disk immediately, use C<cf::db_sync>.
2018
2019	=item cf::db_dirty
2020
2021	Marks the database as dirty, to be updated at a later time.
2022
2023	=item cf::db_sync
2024
2025	Immediately write the database to disk I<if it is dirty>.
2026
2027	=cut
2028
2029	our $DB;
2030
2031	{
2032	my $path = cf::localdir . "/database.pst";
2033
2034	sub db_load() {
2035	$DB = stat $path ? Storable::retrieve $path : { };
2036	}
2037
2038	my $pid;
2039
2040	sub db_save() {
2041	waitpid $pid, 0 if $pid;
2042	if (0 == ($pid = fork)) {
2043	$DB->{_meta}{version} = 1;
2044	Storable::nstore $DB, "$path~";
2045	rename "$path~", $path;
2046	cf::_exit 0 if defined $pid;
2047	}
2048	}
2049
2050	my $dirty;
2051
2052	sub db_sync() {
2053	db_save if $dirty;
2054	undef $dirty;
2055	}
2056
2057	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2058	db_sync;
2059	});	3379	};
		3380	cf::cede_to_tick;
2060		3381
2061	sub db_dirty() {
2062	$dirty = 1;
2063	$idle->start;
2064	}	3382	{
		3383	my $faces = $facedata->{faceinfo};
2065		3384
2066	sub db_get($;$) {	3385	while (my ($face, $info) = each %$faces) {
2067	@_ >= 2	3386	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2068	? $DB->{$_[0]}{$_[1]}
2069	: ($DB->{$_[0]} ||= { })
2070	}
2071		3387
2072	sub db_put($$;$) {	3388	cf::face::set_visibility $idx, $info->{visibility};
2073	if (@_ >= 3) {	3389	cf::face::set_magicmap $idx, $info->{magicmap};
2074	$DB->{$_[0]}{$_[1]} = $_[2];	3390	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2075	} else {	3391	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2076	$DB->{$_[0]} = $_[1];
2077	}
2078	db_dirty;
2079	}
2080		3392
2081	cf::global->attach (	3393	cf::cede_to_tick;
2082	prio => 10000,
2083	on_cleanup => sub {
2084	db_sync;
2085	},	3394	}
2086	);
2087	}
2088		3395
2089	#############################################################################	3396	while (my ($face, $info) = each %$faces) {
2090	# the server's main()	3397	next unless $info->{smooth};
2091		3398
2092	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
2093	open my $fh, "<:utf8", cf::confdir . "/config"	3527	open my $fh, "<:utf8", "$CONFDIR/config"
2094	or return;	3528	or return;
2095		3529
2096	local $/;	3530	local $/;
2097	*CFG = YAML::Syck::Load <$fh>;	3531	*CFG = YAML::XS::Load scalar <$fh>;
2098		3532
2099	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3533	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2100		3534
2101	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3535	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2102	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3536	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2103		3537
2104	if (exists $CFG{mlockall}) {	3538	if (exists $CFG{mlockall}) {
…		…
2106	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3540	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2107	and die "WARNING: m(un)lockall failed: $!\n";	3541	and die "WARNING: m(un)lockall failed: $!\n";
2108	};	3542	};
2109	warn $@ if $@;	3543	warn $@ if $@;
2110	}	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;
2111	}	3575	}
2112		3576
2113	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
2114	# we must not ever block the main coroutine	3587	# we must not ever block the main coroutine
2115	local $Coro::idle = sub {	3588	local $Coro::idle = sub {
2116	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#
2117	async { Event::one_event };	3590	(async {
		3591	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3592	EV::loop EV::LOOP_ONESHOT;
		3593	})->prio (Coro::PRIO_MAX);
2118	};	3594	};
2119		3595
2120	cfg_load;	3596	evthread_start IO::AIO::poll_fileno;
2121	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
2122	load_extensions;	3619	load_extensions;
2123	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;
2124	}	3634	}
2125		3635
2126	#############################################################################	3636	#############################################################################
2127	# initialisation	3637	# initialisation and cleanup
2128		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
2129	sub reload() {	3820	sub do_reload_perl() {
2130	# can/must only be called in main	3821	# can/must only be called in main
2131	if ($Coro::current != $Coro::main) {	3822	if (in_main) {
2132	warn "can only reload from main coroutine\n";	3823	warn "can only reload from main coroutine";
2133	return;	3824	return;
2134	}	3825	}
2135		3826
		3827	return if $RELOAD++;
		3828
		3829	my $t1 = AE::time;
		3830
		3831	while ($RELOAD) {
2136	warn "reloading...";	3832	warn "reloading...";
2137		3833
2138	my $guard = freeze_mainloop;	3834	warn "entering sync_job";
		3835
		3836	cf::sync_job {
		3837	cf::write_runtime_sync; # external watchdog should not bark
2139	cf::emergency_save;	3838	cf::emergency_save;
		3839	cf::write_runtime_sync; # external watchdog should not bark
2140		3840
2141	eval {	3841	warn "syncing database to disk";
		3842	BDB::db_env_txn_checkpoint $DB_ENV;
		3843
2142	# 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
2143		3845
2144	# cancel all watchers	3846	warn "flushing outstanding aio requests";
2145	for (Event::all_watchers) {	3847	while (IO::AIO::nreqs || BDB::nreqs) {
2146	$_->cancel if $_->data & WF_AUTOCANCEL;	3848	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2147	}
2148
2149	# cancel all extension coros
2150	$_->cancel for values %EXT_CORO;
2151	%EXT_CORO = ();
2152
2153	# unload all extensions
2154	for (@exts) {
2155	warn "unloading <$_>";
2156	unload_extension $_;
2157	}
2158
2159	# unload all modules loaded from $LIBDIR
2160	while (my ($k, $v) = each %INC) {
2161	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2162
2163	warn "removing <$k>";
2164	delete $INC{$k};
2165
2166	$k =~ s/\.pm$//;
2167	$k =~ s/\//::/g;
2168
2169	if (my $cb = $k->can ("unload_module")) {
2170	$cb->();
2171	}	3849	}
2172		3850
2173	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;
2174	}	3875	}
2175		3876
2176	# sync database to disk	3877	warn "unloading all perl modules loaded from $LIBDIR";
2177	cf::db_sync;	3878	while (my ($k, $v) = each %INC) {
2178	IO::AIO::flush;	3879	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2179		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 $k;
		3892	}
		3893
2180	# get rid of safe::, as good as possible	3894	warn "getting rid of safe::, as good as possible";
2181	Symbol::delete_package "safe::$_"	3895	clear_package "safe::$_"
2182	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);
2183		3897
2184	# remove register_script_function callbacks	3898	warn "unloading cf.pm \"a bit\"";
2185	# TODO
2186
2187	# unload cf.pm "a bit"
2188	delete $INC{"cf.pm"};	3899	delete $INC{"cf.pm"};
		3900	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2189		3901
2190	# don't, removes xs symbols, too,	3902	# don't, removes xs symbols, too,
2191	# and global variables created in xs	3903	# and global variables created in xs
2192	#Symbol::delete_package __PACKAGE__;	3904	#clear_package __PACKAGE__;
2193		3905
2194	# reload cf.pm	3906	warn "unload completed, starting to reload now";
		3907
2195	warn "reloading cf.pm";	3908	warn "reloading cf.pm";
2196	require cf;	3909	require cf;
2197	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3910	cf::_connect_to_perl_1;
2198		3911
2199	# load config and database again	3912	warn "loading config and database again";
2200	cf::cfg_load;	3913	cf::reload_config;
2201	cf::db_load;
2202		3914
2203	# load extensions
2204	warn "load extensions";	3915	warn "loading extensions";
2205	cf::load_extensions;	3916	cf::load_extensions;
2206		3917
2207	# reattach attachments to objects	3918	if ($REATTACH_ON_RELOAD) {
2208	warn "reattach";	3919	warn "reattaching attachments to objects/players";
2209	_global_reattach;	3920	_global_reattach; # objects, sockets
		3921	warn "reattaching attachments to maps";
2210	reattach $_ for values %MAP;	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 $@;
		3935	cf::cleanup "error while reloading, exiting.";
		3936	};
		3937
		3938	warn "reloaded";
		3939	--$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 $RELOAD_WATCHER;
		3958	};
2211	};	3959	};
2212
2213	if ($@) {
2214	warn $@;
2215	warn "error while reloading, exiting.";
2216	exit 1;
2217	}
2218
2219	warn "reloaded successfully";
2220	};
2221
2222	#############################################################################
2223
2224	unless ($LINK_MAP) {
2225	$LINK_MAP = cf::map::new;
2226
2227	$LINK_MAP->width (41);
2228	$LINK_MAP->height (41);
2229	$LINK_MAP->alloc;
2230	$LINK_MAP->path ("{link}");
2231	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2232	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2233
2234	# dirty hack because... archetypes are not yet loaded
2235	Event->timer (
2236	after => 10,
2237	cb => sub {
2238	$_[0]->w->cancel;
2239
2240	# provide some exits "home"
2241	my $exit = cf::object::new "exit";
2242
2243	$exit->slaying ($EMERGENCY_POSITION->[0]);
2244	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2245	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2246
2247	$LINK_MAP->insert ($exit->clone, 19, 19);
2248	$LINK_MAP->insert ($exit->clone, 19, 20);
2249	$LINK_MAP->insert ($exit->clone, 19, 21);
2250	$LINK_MAP->insert ($exit->clone, 20, 19);
2251	$LINK_MAP->insert ($exit->clone, 20, 21);
2252	$LINK_MAP->insert ($exit->clone, 21, 19);
2253	$LINK_MAP->insert ($exit->clone, 21, 20);
2254	$LINK_MAP->insert ($exit->clone, 21, 21);
2255
2256	$exit->destroy;
2257	});
2258
2259	$LINK_MAP->{deny_save} = 1;
2260	$LINK_MAP->{deny_reset} = 1;
2261
2262	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2263	}	3960	}
2264
2265	register "<global>", __PACKAGE__;
2266		3961
2267	register_command "reload" => sub {	3962	register_command "reload" => sub {
2268	my ($who, $arg) = @_;	3963	my ($who, $arg) = @_;
2269		3964
2270	if ($who->flag (FLAG_WIZ)) {	3965	if ($who->flag (FLAG_WIZ)) {
2271	$who->message ("start of reload.");
2272	reload;
2273	$who->message ("end of reload.");	3966	$who->message ("reloading server.");
		3967	async {
		3968	$Coro::current->{desc} = "perl_reload";
		3969	reload_perl;
		3970	};
2274	}	3971	}
2275	};	3972	};
2276		3973
2277	unshift @INC, $LIBDIR;	3974	unshift @INC, $LIBDIR;
2278		3975
2279	$TICK_WATCHER = Event->timer (	3976	my $bug_warning = 0;
2280	reentrant => 0,	3977
2281	prio => 0,	3978	our @WAIT_FOR_TICK;
2282	at => $NEXT_TICK || $TICK,	3979	our @WAIT_FOR_TICK_BEGIN;
2283	data => WF_AUTOCANCEL,	3980
2284	cb => sub {	3981	sub wait_for_tick {
		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
2285	cf::server_tick; # one server iteration	4004	cf::server_tick; # one server iteration
2286	$RUNTIME += $TICK;
2287	$NEXT_TICK += $TICK;
2288		4005
2289	# if we are delayed by four ticks or more, skip them all	4006	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2290	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2291		4007
2292	$TICK_WATCHER->at ($NEXT_TICK);	4008	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2293	$TICK_WATCHER->start;	4009	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2294	},	4010	Coro::async_pool {
2295	);	4011	$Coro::current->{desc} = "runtime saver";
2296
2297	IO::AIO::max_poll_time $TICK * 0.2;
2298
2299	Event->io (
2300	fd => IO::AIO::poll_fileno,
2301	poll => 'r',
2302	prio => 5,
2303	data => WF_AUTOCANCEL,
2304	cb => \&IO::AIO::poll_cb,
2305	);
2306
2307	Event->timer (
2308	data => WF_AUTOCANCEL,
2309	after => 0,
2310	interval => 10,
2311	cb => sub {
2312	(Coro::unblock_sub {
2313	write_runtime	4012	write_runtime_sync
2314	or warn "ERROR: unable to write runtime file: $!";	4013	or warn "ERROR: unable to write runtime file: $!";
2315	})->();	4014	};
2316	},	4015	}
2317	);	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;
2318		4131
2319	END { cf::emergency_save }	4132	END { cf::emergency_save }
2320		4133
2321	1	4134	1
2322		4135

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