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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.222 by root, Tue Mar 6 03:06:00 2007 UTC vs.
Revision 1.525 by root, Wed Apr 21 03:34:26 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 3.5 ();	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
		55	use JSON::XS 2.01 ();
20	use BDB ();	56	use BDB ();
21	use Data::Dumper;	57	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	58	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
26	use Time::HiRes;	61	use Time::HiRes;
27	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
28		64
		65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		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";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		77
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	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
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		82
40	our %COMMAND = ();	83	our %COMMAND = ();
41	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
42		85
43	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
47		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	93	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
50		96
51	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	98	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
		115
		116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	118	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
58		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	123	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
61		127
62	our %CFG;	128	our %CFG;
63		129
64	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
66		133
67	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		137
76	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
		150
79	binmode STDOUT;	151	binmode STDOUT;
80	binmode STDERR;	152	binmode STDERR;
81		153
82	# read virtual server time, if available	154	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
87	}	159	}
88		160
89	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	162
91	mkdir cf::localdir . "/" . cf::tmpdir;	163	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		165
96	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
97		167
98	sub cf::map::normalise;	168	sub cf::map::normalise;
		169
		170	sub in_main() {
		171	$Coro::current == $Coro::main
		172	}
		173
		174	#############################################################################
		175
		176	%REFLECT = ();
		177	for (@REFLECT) {
		178	my $reflect = JSON::XS::decode_json $_;
		179	$REFLECT{$reflect->{class}} = $reflect;
		180	}
		181
		182	# this is decidedly evil
		183	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
99		184
100	#############################################################################	185	#############################################################################
101		186
102	=head2 GLOBAL VARIABLES	187	=head2 GLOBAL VARIABLES
103		188
…		…
110	=item $cf::RUNTIME	195	=item $cf::RUNTIME
111		196
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	197	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	198	every server tick.
114		199
115	=item $cf::LIBDIR	200	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		201	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		202	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		203
117	The perl library directory, where extensions and cf-specific modules can	204	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	205	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		206	unique-items directory, player file directory, random maps directory and
		207	database environment.
119		208
120	=item $cf::NOW	209	=item $cf::NOW
121		210
122	The time of the last (current) server tick.	211	The time of the last (current) server tick.
123		212
124	=item $cf::TICK	213	=item $cf::TICK
125		214
126	The interval between server ticks, in seconds.	215	The interval between server ticks, in seconds.
127		216
		217	=item $cf::LOADAVG
		218
		219	The current CPU load on the server (alpha-smoothed), as a value between 0
		220	(none) and 1 (overloaded), indicating how much time is spent on processing
		221	objects per tick. Healthy values are < 0.5.
		222
		223	=item $cf::LOAD
		224
		225	The raw value load value from the last tick.
		226
128	=item %cf::CFG	227	=item %cf::CFG
129		228
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	229	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	230	from wherever your confdir points to.
132		231
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	232	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		233
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	234	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	235	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	236	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.	237
		238	=item @cf::INVOKE_RESULTS
		239
		240	This array contains the results of the last C<invoke ()> call. When
		241	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		242	that call.
		243
		244	=item %cf::REFLECT
		245
		246	Contains, for each (C++) class name, a hash reference with information
		247	about object members (methods, scalars, arrays and flags) and other
		248	metadata, which is useful for introspection.
139		249
140	=back	250	=back
141		251
142	=cut	252	=cut
143		253
144	BEGIN {	254	$Coro::State::WARNHOOK = sub {
145	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	255	my $msg = join "", @_;
147	utf8::encode $msg;
148		256
149	$msg .= "\n"	257	$msg .= "\n"
150	unless $msg =~ /\n$/;	258	unless $msg =~ /\n$/;
151		259
		260	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		261
152	LOG llevError, $msg;	262	LOG llevError, $msg;
153	};	263	};
154	}	264
		265	$Coro::State::DIEHOOK = sub {
		266	return unless $^S eq 0; # "eq", not "=="
		267
		268	warn Carp::longmess $_[0];
		269
		270	if (in_main) {#d#
		271	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		272	return;#d#
		273	}#d#
		274
		275	# kill coroutine otherwise
		276	Coro::terminate
		277	};
155		278
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	279	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	280	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	281	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	282	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	283	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		284	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	285	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		286
163	# we bless all objects into (empty) derived classes to force a method lookup	287	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	288	# within the Safe compartment.
165	for my $pkg (qw(	289	for my $pkg (qw(
166	cf::global cf::attachable	290	cf::global cf::attachable
167	cf::object cf::object::player	291	cf::object cf::object::player
168	cf::client cf::player	292	cf::client cf::player
169	cf::arch cf::living	293	cf::arch cf::living
		294	cf::map cf::mapspace
170	cf::map cf::party cf::region	295	cf::party cf::region
171	)) {	296	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	297	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	298	}
175		299
176	$Event::DIED = sub {	300	$EV::DIED = sub {
177	warn "error in event callback: @_";	301	Carp::cluck "error in event callback: @_";
178	};	302	};
		303
		304	#############################################################################
179		305
180	=head2 UTILITY FUNCTIONS	306	=head2 UTILITY FUNCTIONS
181		307
182	=over 4	308	=over 4
183		309
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	328	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	329	$d
204	} || "[unable to dump $_[0]: '$@']";	330	} || "[unable to dump $_[0]: '$@']";
205	}	331	}
206		332
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	333	=item $ref = cf::decode_json $json
210		334
211	Converts a JSON string into the corresponding perl data structure.	335	Converts a JSON string into the corresponding perl data structure.
212		336
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	337	=item $json = cf::encode_json $ref
221		338
222	Converts a perl data structure into its JSON representation.	339	Converts a perl data structure into its JSON representation.
223		340
224	=cut	341	=cut
225		342
226	sub to_json($) {	343	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	344
228	JSON::Syck::Dump $_[0]	345	sub encode_json($) { $json_coder->encode ($_[0]) }
		346	sub decode_json($) { $json_coder->decode ($_[0]) }
		347
		348	=item cf::post_init { BLOCK }
		349
		350	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		351	but I<before> the server starts ticking again.
		352
		353	The cdoeblock will have a single boolean argument to indicate whether this
		354	is a reload or not.
		355
		356	=cut
		357
		358	sub post_init(&) {
		359	push @POST_INIT, shift;
229	}	360	}
230		361
231	=item cf::lock_wait $string	362	=item cf::lock_wait $string
232		363
233	Wait until the given lock is available. See cf::lock_acquire.	364	Wait until the given lock is available. See cf::lock_acquire.
234		365
235	=item my $lock = cf::lock_acquire $string	366	=item my $lock = cf::lock_acquire $string
236		367
237	Wait until the given lock is available and then acquires it and returns	368	Wait until the given lock is available and then acquires it and returns
238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	369	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
239	for example when the coroutine gets canceled), the lock is automatically	370	for example when the coroutine gets canceled), the lock is automatically
240	returned.	371	returned.
241		372
		373	Locks are *not* recursive, locking from the same coro twice results in a
		374	deadlocked coro.
		375
242	Lock names should begin with a unique identifier (for example, cf::map::find	376	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	377	uses map_find and cf::map::load uses map_load).
244		378
245	=cut	379	=item $locked = cf::lock_active $string
246		380
247	our %LOCK;	381	Return true if the lock is currently active, i.e. somebody has locked it.
		382
		383	=cut
		384
		385	our $LOCKS = new Coro::SemaphoreSet;
248		386
249	sub lock_wait($) {	387	sub lock_wait($) {
250	my ($key) = @_;	388	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	389	}
258		390
259	sub lock_acquire($) {	391	sub lock_acquire($) {
260	my ($key) = @_;	392	$LOCKS->guard ($_[0])
		393	}
261		394
262	# wait, to be sure we are not locked	395	sub lock_active($) {
263	lock_wait $key;	396	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	397	}
272		398
273	sub freeze_mainloop {	399	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	400	tick_inhibit_inc;
275		401
276	my $guard = Coro::guard {	402	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	403	}
		404
		405	=item cf::periodic $interval, $cb
		406
		407	Like EV::periodic, but randomly selects a starting point so that the actions
		408	get spread over time.
		409
		410	=cut
		411
		412	sub periodic($$) {
		413	my ($interval, $cb) = @_;
		414
		415	my $start = rand List::Util::min 180, $interval;
		416
		417	EV::periodic $start, $interval, 0, $cb
		418	}
		419
		420	=item cf::get_slot $time[, $priority[, $name]]
		421
		422	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		423	This call blocks and returns only when you have at least C<$time> seconds
		424	of cpu time till the next tick. The slot is only valid till the next cede.
		425
		426	The optional C<$name> can be used to identify the job to run. It might be
		427	used for statistical purposes and should identify the same time-class.
		428
		429	Useful for short background jobs.
		430
		431	=cut
		432
		433	our @SLOT_QUEUE;
		434	our $SLOT_QUEUE;
		435	our $SLOT_DECAY = 0.9;
		436
		437	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		438	$SLOT_QUEUE = Coro::async {
		439	$Coro::current->desc ("timeslot manager");
		440
		441	my $signal = new Coro::Signal;
		442	my $busy;
		443
		444	while () {
		445	next_job:
		446
		447	my $avail = cf::till_tick;
		448
		449	for (0 .. $#SLOT_QUEUE) {
		450	if ($SLOT_QUEUE[$_][0] <= $avail) {
		451	$busy = 0;
		452	my $job = splice @SLOT_QUEUE, $_, 1, ();
		453	$job->[2]->send;
		454	Coro::cede;
		455	goto next_job;
		456	} else {
		457	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		458	}
		459	}
		460
		461	if (@SLOT_QUEUE) {
		462	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		463	push @cf::WAIT_FOR_TICK, $signal;
		464	$signal->wait;
		465	} else {
		466	$busy = 0;
		467	Coro::schedule;
		468	}
278	};	469	}
279	$TICK_WATCHER->stop;	470	};
280	$guard	471
		472	sub get_slot($;$$) {
		473	return if tick_inhibit || $Coro::current == $Coro::main;
		474
		475	my ($time, $pri, $name) = @_;
		476
		477	$time = clamp $time, 0.01, $TICK * .6;
		478
		479	my $sig = new Coro::Signal;
		480
		481	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		482	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		483	$SLOT_QUEUE->ready;
		484	$sig->wait;
281	}	485	}
282		486
283	=item cf::async { BLOCK }	487	=item cf::async { BLOCK }
284		488
285	Currently the same as Coro::async_pool, meaning you cannot use	489	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		494
291	BEGIN { *async = \&Coro::async_pool }	495	BEGIN { *async = \&Coro::async_pool }
292		496
293	=item cf::sync_job { BLOCK }	497	=item cf::sync_job { BLOCK }
294		498
295	The design of crossfire+ requires that the main coro ($Coro::main) is	499	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	500	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	501	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		502	acceptable.
298		503
299	If it must be done, put the blocking parts into C<sync_job>. This will run	504	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	505	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	506	server will be frozen during this time, so the block should either finish
302	fast or be very important.	507	fast or be very important.
…		…
305		510
306	sub sync_job(&) {	511	sub sync_job(&) {
307	my ($job) = @_;	512	my ($job) = @_;
308		513
309	if ($Coro::current == $Coro::main) {	514	if ($Coro::current == $Coro::main) {
		515	my $time = AE::time;
		516
310	# this is the main coro, too bad, we have to block	517	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	518	# till the operation succeeds, freezing the server :/
312		519
313	# TODO: use suspend/resume instead	520	LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	521
315	my $freeze_guard = freeze_mainloop;	522	my $freeze_guard = freeze_mainloop;
316		523
317	my $busy = 1;	524	my $busy = 1;
318	my @res;	525	my @res;
319		526
320	(async {	527	(async {
		528	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	529	@res = eval { $job->() };
322	warn $@ if $@;	530	warn $@ if $@;
323	undef $busy;	531	undef $busy;
324	})->prio (Coro::PRIO_MAX);	532	})->prio (Coro::PRIO_MAX);
325		533
326	while ($busy) {	534	while ($busy) {
327	Coro::cede or Event::one_event;	535	if (Coro::nready) {
		536	Coro::cede_notself;
		537	} else {
		538	EV::loop EV::LOOP_ONESHOT;
328	}	539	}
		540	}
		541
		542	my $time = AE::time - $time;
		543
		544	$TICK_START += $time; # do not account sync jobs to server load
329		545
330	wantarray ? @res : $res[0]	546	wantarray ? @res : $res[0]
331	} else {	547	} else {
332	# we are in another coroutine, how wonderful, everything just works	548	# we are in another coroutine, how wonderful, everything just works
333		549
…		…
353	$EXT_CORO{$coro+0} = $coro;	569	$EXT_CORO{$coro+0} = $coro;
354		570
355	$coro	571	$coro
356	}	572	}
357		573
358	sub write_runtime {	574	=item fork_call { }, $args
359	my $guard = cf::lock_acquire "write_runtime";
360		575
361	my $runtime = cf::localdir . "/runtime";	576	Executes the given code block with the given arguments in a seperate
		577	process, returning the results. Everything must be serialisable with
		578	Coro::Storable. May, of course, block. Note that the executed sub may
		579	never block itself or use any form of event handling.
362		580
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	581	=cut
364	or return;
365		582
366	my $value = $cf::RUNTIME + 90 + 10;	583	sub fork_call(&@) {
367	# 10 is the runtime save interval, for a monotonic clock	584	my ($cb, @args) = @_;
368	# 60 allows for the watchdog to kill the server.
369		585
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	586	# we seemingly have to make a local copy of the whole thing,
371	and return;	587	# otherwise perl prematurely frees the stuff :/
		588	# TODO: investigate and fix (likely this will be rather laborious)
372		589
373	# always fsync - this file is important	590	my @res = Coro::Util::fork_eval {
374	aio_fsync $fh	591	reset_signals;
375	and return;	592	&$cb
		593	}, @args;
376		594
377	close $fh	595	wantarray ? @res : $res[-1]
378	or return;	596	}
379		597
380	aio_rename "$runtime~", $runtime	598	sub objinfo {
381	and return;
382
383	1	599	(
		600	"counter value" => cf::object::object_count,
		601	"objects created" => cf::object::create_count,
		602	"objects destroyed" => cf::object::destroy_count,
		603	"freelist size" => cf::object::free_count,
		604	"allocated objects" => cf::object::objects_size,
		605	"active objects" => cf::object::actives_size,
		606	)
		607	}
		608
		609	=item $coin = coin_from_name $name
		610
		611	=cut
		612
		613	our %coin_alias = (
		614	"silver" => "silvercoin",
		615	"silvercoin" => "silvercoin",
		616	"silvercoins" => "silvercoin",
		617	"gold" => "goldcoin",
		618	"goldcoin" => "goldcoin",
		619	"goldcoins" => "goldcoin",
		620	"platinum" => "platinacoin",
		621	"platinumcoin" => "platinacoin",
		622	"platinumcoins" => "platinacoin",
		623	"platina" => "platinacoin",
		624	"platinacoin" => "platinacoin",
		625	"platinacoins" => "platinacoin",
		626	"royalty" => "royalty",
		627	"royalties" => "royalty",
		628	);
		629
		630	sub coin_from_name($) {
		631	$coin_alias{$_[0]}
		632	? cf::arch::find $coin_alias{$_[0]}
		633	: undef
		634	}
		635
		636	=item $value = cf::db_get $family => $key
		637
		638	Returns a single value from the environment database.
		639
		640	=item cf::db_put $family => $key => $value
		641
		642	Stores the given C<$value> in the family. It can currently store binary
		643	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		644
		645	=item $db = cf::db_table "name"
		646
		647	Create and/or open a new database table. The string must not be "db" and must be unique
		648	within each server.
		649
		650	=cut
		651
		652	sub db_table($) {
		653	my ($name) = @_;
		654	my $db = BDB::db_create $DB_ENV;
		655
		656	eval {
		657	$db->set_flags (BDB::CHKSUM);
		658
		659	utf8::encode $name;
		660	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		661	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		662	cf::cleanup "db_open(db): $!" if $!;
		663	};
		664	cf::cleanup "db_open(db): $@" if $@;
		665
		666	$db
		667	}
		668
		669	our $DB;
		670
		671	sub db_init {
		672	cf::sync_job {
		673	$DB ||= db_table "db";
		674	};
		675	}
		676
		677	sub db_get($$) {
		678	my $key = "$_[0]/$_[1]";
		679
		680	cf::sync_job {
		681	BDB::db_get $DB, undef, $key, my $data;
		682
		683	$! ? ()
		684	: $data
		685	}
		686	}
		687
		688	sub db_put($$$) {
		689	BDB::dbreq_pri 4;
		690	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		691	}
		692
		693	=item cf::cache $id => [$paths...], $processversion => $process
		694
		695	Generic caching function that returns the value of the resource $id,
		696	caching and regenerating as required.
		697
		698	This function can block.
		699
		700	=cut
		701
		702	sub cache {
		703	my ($id, $src, $processversion, $process) = @_;
		704
		705	my $meta =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	aio_stat $_
		710	and Carp::croak "$_: $!";
		711
		712	($_, (stat _)[7,9])
		713	} @$src;
		714
		715	my $dbmeta = db_get cache => "$id/meta";
		716	if ($dbmeta ne $meta) {
		717	# changed, we may need to process
		718
		719	my @data;
		720	my $md5;
		721
		722	for (0 .. $#$src) {
		723	0 <= aio_load $src->[$_], $data[$_]
		724	or Carp::croak "$src->[$_]: $!";
		725	}
		726
		727	# if processing is expensive, check
		728	# checksum first
		729	if (1) {
		730	$md5 =
		731	join "\x00",
		732	$processversion,
		733	map {
		734	cf::cede_to_tick;
		735	($src->[$_], Digest::MD5::md5_hex $data[$_])
		736	} 0.. $#$src;
		737
		738
		739	my $dbmd5 = db_get cache => "$id/md5";
		740	if ($dbmd5 eq $md5) {
		741	db_put cache => "$id/meta", $meta;
		742
		743	return db_get cache => "$id/data";
		744	}
		745	}
		746
		747	my $t1 = Time::HiRes::time;
		748	my $data = $process->(\@data);
		749	my $t2 = Time::HiRes::time;
		750
		751	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		752
		753	db_put cache => "$id/data", $data;
		754	db_put cache => "$id/md5" , $md5;
		755	db_put cache => "$id/meta", $meta;
		756
		757	return $data;
		758	}
		759
		760	db_get cache => "$id/data"
		761	}
		762
		763	=item cf::datalog type => key => value, ...
		764
		765	Log a datalog packet of the given type with the given key-value pairs.
		766
		767	=cut
		768
		769	sub datalog($@) {
		770	my ($type, %kv) = @_;
		771	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	772	}
385		773
386	=back	774	=back
387		775
388	=cut	776	=cut
389		777
390	#############################################################################	778	#############################################################################
391		779
392	=head2 ATTACHABLE OBJECTS	780	=head2 ATTACHABLE OBJECTS
393		781
394	Many objects in crossfire are so-called attachable objects. That means you can	782	Many objects in deliantra are so-called attachable objects. That means you can
395	attach callbacks/event handlers (a collection of which is called an "attachment")	783	attach callbacks/event handlers (a collection of which is called an "attachment")
396	to it. All such attachable objects support the following methods.	784	to it. All such attachable objects support the following methods.
397		785
398	In the following description, CLASS can be any of C<global>, C<object>	786	In the following description, CLASS can be any of C<global>, C<object>
399	C<player>, C<client> or C<map> (i.e. the attachable objects in	787	C<player>, C<client> or C<map> (i.e. the attachable objects in
400	crossfire+).	788	Deliantra).
401		789
402	=over 4	790	=over 4
403		791
404	=item $attachable->attach ($attachment, key => $value...)	792	=item $attachable->attach ($attachment, key => $value...)
405		793
…		…
449	=item cf::CLASS::attachment $name, ...	837	=item cf::CLASS::attachment $name, ...
450		838
451	Register an attachment by C<$name> through which attachable objects of the	839	Register an attachment by C<$name> through which attachable objects of the
452	given CLASS can refer to this attachment.	840	given CLASS can refer to this attachment.
453		841
454	Some classes such as crossfire maps and objects can specify attachments	842	Some classes such as deliantra maps and objects can specify attachments
455	that are attached at load/instantiate time, thus the need for a name.	843	that are attached at load/instantiate time, thus the need for a name.
456		844
457	These calls expect any number of the following handler/hook descriptions:	845	These calls expect any number of the following handler/hook descriptions:
458		846
459	=over 4	847	=over 4
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	956	$registry = $CB_TYPE[$object_type] ||= [];
569		957
570	} elsif ($type eq "subtype") {	958	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	959	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	960	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	961	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		962
575	} elsif ($type eq "package") {	963	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	964	my $pkg = shift @arg;
577		965
578	while (my ($name, $id) = each %cb_id) {	966	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	995	_attach $registry, $klass, @attach;
608	}	996	}
609		997
610	$obj->{$name} = \%arg;	998	$obj->{$name} = \%arg;
611	} else {	999	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	1000	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	1001	}
614		1002
615	$obj->{_attachment}{$name} = undef;	1003	$obj->{_attachment}{$name} = undef;
616	}	1004	}
617		1005
…		…
619	if (ref $_[0]) {	1007	if (ref $_[0]) {
620	_object_attach @_;	1008	_object_attach @_;
621	} else {	1009	} else {
622	_attach shift->_attach_registry, @_;	1010	_attach shift->_attach_registry, @_;
623	}	1011	}
		1012	_recalc_want;
624	};	1013	};
625		1014
626	# all those should be optimised	1015	# all those should be optimised
627	sub cf::attachable::detach {	1016	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	1017	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	1020	delete $obj->{_attachment}{$name};
632	reattach ($obj);	1021	reattach ($obj);
633	} else {	1022	} else {
634	Carp::croak "cannot, currently, detach class attachments";	1023	Carp::croak "cannot, currently, detach class attachments";
635	}	1024	}
		1025	_recalc_want;
636	};	1026	};
637		1027
638	sub cf::attachable::attached {	1028	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	1029	my ($obj, $name) = @_;
640		1030
…		…
655	";	1045	";
656	die if $@;	1046	die if $@;
657	}	1047	}
658		1048
659	our $override;	1049	our $override;
660	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1050	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
661		1051
662	sub override {	1052	sub override {
663	$override = 1;	1053	$override = 1;
664	@invoke_results = ();	1054	@INVOKE_RESULTS = (@_);
665	}	1055	}
666		1056
667	sub do_invoke {	1057	sub do_invoke {
668	my $event = shift;	1058	my $event = shift;
669	my $callbacks = shift;	1059	my $callbacks = shift;
670		1060
671	@invoke_results = ();	1061	@INVOKE_RESULTS = ();
672		1062
673	local $override;	1063	local $override;
674		1064
675	for (@$callbacks) {	1065	for (@$callbacks) {
676	eval { &{$_->[1]} };	1066	eval { &{$_->[1]} };
…		…
685	}	1075	}
686		1076
687	0	1077	0
688	}	1078	}
689		1079
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1080	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		1081
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1082	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		1083
694	Generate an object-specific event with the given arguments.	1084	Generate an object-specific event with the given arguments.
695		1085
696	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1086	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
697	removed in future versions), and there is no public API to access override	1087	removed in future versions), and there is no public API to access override
698	results (if you must, access C<@cf::invoke_results> directly).	1088	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		1089
700	=back	1090	=back
701		1091
702	=cut	1092	=cut
703		1093
704	#############################################################################	1094	#############################################################################
705	# object support	1095	# object support
		1096
		1097	sub _object_equal($$);
		1098	sub _object_equal($$) {
		1099	my ($a, $b) = @_;
		1100
		1101	return 0 unless (ref $a) eq (ref $b);
		1102
		1103	if ("HASH" eq ref $a) {
		1104	my @ka = keys %$a;
		1105	my @kb = keys %$b;
		1106
		1107	return 0 if @ka != @kb;
		1108
		1109	for (0 .. $#ka) {
		1110	return 0 unless $ka[$_] eq $kb[$_];
		1111	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1112	}
		1113
		1114	} elsif ("ARRAY" eq ref $a) {
		1115
		1116	return 0 if @$a != @$b;
		1117
		1118	for (0 .. $#$a) {
		1119	return 0 unless _object_equal $a->[$_], $b->[$_];
		1120	}
		1121
		1122	} elsif ($a ne $b) {
		1123	return 0;
		1124	}
		1125
		1126	1
		1127	}
		1128
		1129	our $SLOW_MERGES;#d#
		1130	sub _can_merge {
		1131	my ($ob1, $ob2) = @_;
		1132
		1133	++$SLOW_MERGES;#d#
		1134
		1135	# we do the slow way here
		1136	return _object_equal $ob1, $ob2
		1137	}
706		1138
707	sub reattach {	1139	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1140	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1141	my ($obj) = @_;
710		1142
		1143	# no longer needed after getting rid of delete_package?
711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1144	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
712		1145
713	my $registry = $obj->registry;	1146	my $registry = $obj->registry;
714		1147
715	@$registry = ();	1148	@$registry = ();
716		1149
…		…
731	cf::attachable->attach (	1164	cf::attachable->attach (
732	prio => -1000000,	1165	prio => -1000000,
733	on_instantiate => sub {	1166	on_instantiate => sub {
734	my ($obj, $data) = @_;	1167	my ($obj, $data) = @_;
735		1168
736	$data = from_json $data;	1169	$data = decode_json $data;
737		1170
738	for (@$data) {	1171	for (@$data) {
739	my ($name, $args) = @$_;	1172	my ($name, $args) = @$_;
740		1173
741	$obj->attach ($name, %{$args || {} });	1174	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1190	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1191	my ($filename, $rdata, $objs) = @_;
759		1192
760	sync_job {	1193	sync_job {
761	if (length $$rdata) {	1194	if (length $$rdata) {
		1195	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1196	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1197	$decname, length $$rdata, scalar @$objs;
764		1198
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1199	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1200	aio_chmod $fh, SAVE_MODE;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1201	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	aio_fsync $fh if $cf::USE_FSYNC;	1202	if ($cf::USE_FSYNC) {
		1203	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1204	aio_fsync $fh;
		1205	}
769	close $fh;	1206	aio_close $fh;
770		1207
771	if (@$objs) {	1208	if (@$objs) {
772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1209	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
773	chmod SAVE_MODE, $fh;	1210	aio_chmod $fh, SAVE_MODE;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1211	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1212	aio_write $fh, 0, (length $data), $data, 0;
776	aio_fsync $fh if $cf::USE_FSYNC;	1213	if ($cf::USE_FSYNC) {
		1214	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1215	aio_fsync $fh;
		1216	}
777	close $fh;	1217	aio_close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1218	aio_rename "$filename.pst~", "$filename.pst";
779	}	1219	}
780	} else {	1220	} else {
781	aio_unlink "$filename.pst";	1221	aio_unlink "$filename.pst";
782	}	1222	}
783		1223
784	aio_rename "$filename~", $filename;	1224	aio_rename "$filename~", $filename;
		1225
		1226	$filename =~ s%/[^/]+$%%;
		1227	aio_pathsync $filename if $cf::USE_FSYNC;
785	} else {	1228	} else {
786	warn "FATAL: $filename~: $!\n";	1229	warn "unable to save objects: $filename~: $!\n";
787	}	1230	}
788	} else {	1231	} else {
789	aio_unlink $filename;	1232	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1233	aio_unlink "$filename.pst";
791	}	1234	}
792	}	1235	};
793	}	1236	}
794		1237
795	sub object_freezer_as_string {	1238	sub object_freezer_as_string {
796	my ($rdata, $objs) = @_;	1239	my ($rdata, $objs) = @_;
797		1240
…		…
809	or return;	1252	or return;
810		1253
811	unless (aio_stat "$filename.pst") {	1254	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1255	(aio_load "$filename.pst", $av) >= 0
813	or return;	1256	or return;
		1257
814	$av = eval { (Storable::thaw $av)->{objs} };	1258	my $st = eval { Coro::Storable::thaw $av };
		1259	$av = $st->{objs};
815	}	1260	}
816		1261
		1262	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1263	warn sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1264	$decname, length $data, scalar @{$av || []};
		1265
819	return ($data, $av);	1266	($data, $av)
820	}	1267	}
		1268
		1269	=head2 COMMAND CALLBACKS
		1270
		1271	=over 4
		1272
		1273	=cut
821		1274
822	#############################################################################	1275	#############################################################################
823	# command handling &c	1276	# command handling &c
824		1277
825	=item cf::register_command $name => \&callback($ob,$args);	1278	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1291	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1292	}
840		1293
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1294	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1295
843	Register a callbackf ro execution when the client sends an extcmd packet.	1296	Register a callback for execution when the client sends an (synchronous)
		1297	extcmd packet. Ext commands will be processed in the order they are
		1298	received by the server, like other user commands. The first argument is
		1299	the logged-in player. Ext commands can only be processed after a player
		1300	has logged in successfully.
844		1301
845	If the callback returns something, it is sent back as if reply was being	1302	If the callback returns something, it is sent back as if reply was being
846	called.	1303	called.
847		1304
		1305	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1306
		1307	Register a callback for execution when the client sends an (asynchronous)
		1308	exticmd packet. Exti commands are processed by the server as soon as they
		1309	are received, i.e. out of order w.r.t. other commands. The first argument
		1310	is a client socket. Exti commands can be received anytime, even before
		1311	log-in.
		1312
		1313	If the callback returns something, it is sent back as if reply was being
		1314	called.
		1315
848	=cut	1316	=cut
849		1317
850	sub register_extcmd {	1318	sub register_extcmd {
851	my ($name, $cb) = @_;	1319	my ($name, $cb) = @_;
852		1320
853	$EXTCMD{$name} = $cb;	1321	$EXTCMD{$name} = $cb;
854	}	1322	}
855		1323
		1324	sub register_exticmd {
		1325	my ($name, $cb) = @_;
		1326
		1327	$EXTICMD{$name} = $cb;
		1328	}
		1329
		1330	use File::Glob ();
		1331
856	cf::player->attach (	1332	cf::player->attach (
857	on_command => sub {	1333	on_unknown_command => sub {
858	my ($pl, $name, $params) = @_;	1334	my ($pl, $name, $params) = @_;
859		1335
860	my $cb = $COMMAND{$name}	1336	my $cb = $COMMAND{$name}
861	or return;	1337	or return;
862		1338
…		…
867	cf::override;	1343	cf::override;
868	},	1344	},
869	on_extcmd => sub {	1345	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1346	my ($pl, $buf) = @_;
871		1347
872	my $msg = eval { from_json $buf };	1348	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1349
874	if (ref $msg) {	1350	if (ref $msg) {
		1351	my ($type, $reply, @payload) =
		1352	"ARRAY" eq ref $msg
		1353	? @$msg
		1354	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1355
		1356	my @reply;
		1357
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1358	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1359	@reply = $cb->($pl, @payload);
877	$pl->ext_reply ($msg->{msgid}, %reply);
878	}
879	}	1360	}
		1361
		1362	$pl->ext_reply ($reply, @reply)
		1363	if $reply;
		1364
880	} else {	1365	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1366	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1367	}
883		1368
884	cf::override;	1369	cf::override;
885	},	1370	},
886	);	1371	);
887		1372
		1373	# "readahead" all extensions
888	sub load_extension {	1374	sub cache_extensions {
889	my ($path) = @_;	1375	my $grp = IO::AIO::aio_group;
890		1376
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1377	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
892	my $base = $1;	1378	for (grep /\.ext$/, @{$_[0]}) {
893	my $pkg = $1;	1379	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}	1380	}
916	die $@;
917	}	1381	};
918		1382
919	push @EXTS, $pkg;	1383	$grp
920	}	1384	}
921		1385
922	sub load_extensions {	1386	sub load_extensions {
		1387	cf::sync_job {
		1388	my %todo;
		1389
923	for my $ext (<$LIBDIR/*.ext>) {	1390	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1391	next unless -r $path;
925	eval {	1392
926	load_extension $ext;	1393	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1394	my $base = $1;
		1395	my $pkg = $1;
		1396	$pkg =~ s/[^[:word:]]/_/g;
		1397	$pkg = "ext::$pkg";
		1398
		1399	open my $fh, "<:utf8", $path
		1400	or die "$path: $!";
		1401
		1402	my $source = do { local $/; <$fh> };
		1403
		1404	my %ext = (
		1405	path => $path,
		1406	base => $base,
		1407	pkg => $pkg,
		1408	);
		1409
		1410	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1411	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1412
		1413	$ext{source} =
		1414	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1415	. "#line 1 \"$path\"\n{\n"
		1416	. $source
		1417	. "\n};\n1";
		1418
		1419	$todo{$base} = \%ext;
		1420	}
		1421
		1422	my $pass = 0;
		1423	my %done;
		1424	while (%todo) {
		1425	my $progress;
		1426
		1427	++$pass;
		1428
		1429	ext:
		1430	while (my ($k, $v) = each %todo) {
		1431	for (split /,\s*/, $v->{meta}{depends}) {
		1432	next ext
		1433	unless exists $done{$_};
		1434	}
		1435
		1436	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1437
		1438	my $active = eval $v->{source};
		1439
		1440	if (length $@) {
		1441	warn "$v->{path}: $@\n";
		1442
		1443	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1444	if exists $v->{meta}{mandatory};
		1445
		1446	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1447	delete $todo{$k};
		1448	} else {
		1449	$done{$k} = delete $todo{$k};
		1450	push @EXTS, $v->{pkg};
		1451	$progress = 1;
		1452
		1453	warn "$v->{base}: extension inactive.\n"
		1454	unless $active;
		1455	}
927	1	1456	}
928	} or warn "$ext not loaded: $@";	1457
		1458	unless ($progress) {
		1459	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1460
		1461	while (my ($k, $v) = each %todo) {
		1462	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1463	if exists $v->{meta}{mandatory};
		1464	}
		1465	}
		1466	}
929	}	1467	};
930	}	1468	}
931		1469
932	#############################################################################	1470	#############################################################################
933		1471
		1472	=back
		1473
934	=head2 CORE EXTENSIONS	1474	=head2 CORE EXTENSIONS
935		1475
936	Functions and methods that extend core crossfire objects.	1476	Functions and methods that extend core deliantra objects.
937		1477
938	=cut	1478	=cut
939		1479
940	package cf::player;	1480	package cf::player;
941		1481
…		…
943		1483
944	=head3 cf::player	1484	=head3 cf::player
945		1485
946	=over 4	1486	=over 4
947		1487
		1488	=item cf::player::num_playing
		1489
		1490	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1491
		1492	=cut
		1493
		1494	sub num_playing {
		1495	scalar grep
		1496	$_->ob->map
		1497	&& !$_->hidden
		1498	&& !$_->ob->flag (cf::FLAG_WIZ),
		1499	cf::player::list
		1500	}
		1501
948	=item cf::player::find $login	1502	=item cf::player::find $login
949		1503
950	Returns the given player object, loading it if necessary (might block).	1504	Returns the given player object, loading it if necessary (might block).
951		1505
952	=cut	1506	=cut
953		1507
954	sub playerdir($) {	1508	sub playerdir($) {
955	cf::localdir	1509	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1510	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1511	}
961		1512
962	sub path($) {	1513	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1514	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1515
965	(playerdir $login) . "/$login.pl"	1516	(playerdir $login) . "/playerdata"
966	}	1517	}
967		1518
968	sub find_active($) {	1519	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1520	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1521	and $cf::PLAYER{$_[0]}->active
…		…
973		1524
974	sub exists($) {	1525	sub exists($) {
975	my ($login) = @_;	1526	my ($login) = @_;
976		1527
977	$cf::PLAYER{$login}	1528	$cf::PLAYER{$login}
978	or cf::sync_job { !aio_stat path $login }	1529	or !aio_stat path $login
979	}	1530	}
980		1531
981	sub find($) {	1532	sub find($) {
982	return $cf::PLAYER{$_[0]} || do {	1533	return $cf::PLAYER{$_[0]} || do {
983	my $login = $_[0];	1534	my $login = $_[0];
984		1535
985	my $guard = cf::lock_acquire "user_find:$login";	1536	my $guard = cf::lock_acquire "user_find:$login";
986		1537
987	$cf::PLAYER{$_[0]} || do {	1538	$cf::PLAYER{$_[0]} || do {
988	my $pl = load_pl path $login	1539	# rename old playerfiles to new ones
		1540	#TODO: remove when no longer required
		1541	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1542	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1543	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1544	aio_unlink +(playerdir $login) . "/$login.pl";
		1545
		1546	my $f = new_from_file cf::object::thawer path $login
989	or return;	1547	or return;
		1548
		1549	my $pl = cf::player::load_pl $f
		1550	or return;
		1551
		1552	local $cf::PLAYER_LOADING{$login} = $pl;
		1553	$f->resolve_delayed_derefs;
990	$cf::PLAYER{$login} = $pl	1554	$cf::PLAYER{$login} = $pl
991	}	1555	}
992	}	1556	}
993	}	1557	}
		1558
		1559	cf::player->attach (
		1560	on_load => sub {
		1561	my ($pl, $path) = @_;
		1562
		1563	# restore slots saved in save, below
		1564	my $slots = delete $pl->{_slots};
		1565
		1566	$pl->ob->current_weapon ($slots->[0]);
		1567	$pl->combat_ob ($slots->[1]);
		1568	$pl->ranged_ob ($slots->[2]);
		1569	},
		1570	);
994		1571
995	sub save($) {	1572	sub save($) {
996	my ($pl) = @_;	1573	my ($pl) = @_;
997		1574
998	return if $pl->{deny_save};	1575	return if $pl->{deny_save};
…		…
1003	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
1004		1581
1005	aio_mkdir playerdir $pl, 0770;	1582	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1583	$pl->{last_save} = $cf::RUNTIME;
1007		1584
		1585	cf::get_slot 0.01;
		1586
		1587	# save slots, to be restored later
		1588	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1589
1008	$pl->save_pl ($path);	1590	$pl->save_pl ($path);
1009	Coro::cede;	1591	cf::cede_to_tick;
1010	}	1592	}
1011		1593
1012	sub new($) {	1594	sub new($) {
1013	my ($login) = @_;	1595	my ($login) = @_;
1014		1596
…		…
1020	$cf::PLAYER{$login} = $self;	1602	$cf::PLAYER{$login} = $self;
1021		1603
1022	$self	1604	$self
1023	}	1605	}
1024		1606
		1607	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1608
		1609	=cut
		1610
		1611	sub send_msg {
		1612	my $ns = shift->ns
		1613	or return;
		1614	$ns->send_msg (@_);
		1615	}
		1616
1025	=item $pl->quit_character	1617	=item $pl->quit_character
1026		1618
1027	Nukes the player without looking back. If logged in, the connection will	1619	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1620	be destroyed. May block for a long time.
1029		1621
…		…
1033	my ($pl) = @_;	1625	my ($pl) = @_;
1034		1626
1035	my $name = $pl->ob->name;	1627	my $name = $pl->ob->name;
1036		1628
1037	$pl->{deny_save} = 1;	1629	$pl->{deny_save} = 1;
1038	$pl->password ("*"); # this should lock out the player until we nuked the dir	1630	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1039		1631
1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1632	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1041	$pl->deactivate;	1633	$pl->deactivate;
		1634	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1635	$pl->ob->check_score;
1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1636	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1043	$pl->ns->destroy if $pl->ns;	1637	$pl->ns->destroy if $pl->ns;
1044		1638
1045	my $path = playerdir $pl;	1639	my $path = playerdir $pl;
1046	my $temp = "$path~$cf::RUNTIME~deleting~";	1640	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1076	while and may block, so not sync_job-capable, ever.	1670	while and may block, so not sync_job-capable, ever.
1077		1671
1078	=cut	1672	=cut
1079		1673
1080	sub list_logins {	1674	sub list_logins {
1081	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1675	my $dirs = aio_readdir $PLAYERDIR
1082	or return [];	1676	or return [];
1083		1677
1084	my @logins;	1678	my @logins;
1085		1679
1086	for my $login (@$dirs) {	1680	for my $login (@$dirs) {
		1681	my $path = path $login;
		1682
		1683	# a .pst is a dead give-away for a valid player
		1684	# if no pst file found, open and chekc for blocked users
		1685	if (aio_stat "$path.pst") {
1087	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1686	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1088	aio_read $fh, 0, 512, my $buf, 0 or next;	1687	aio_read $fh, 0, 512, my $buf, 0 or next;
1089	$buf !~ /^password -------------$/m or next; # official not-valid tag	1688	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1689	}
1090		1690
1091	utf8::decode $login;	1691	utf8::decode $login;
1092	push @logins, $login;	1692	push @logins, $login;
1093	}	1693	}
1094		1694
1095	\@logins	1695	\@logins
1096	}	1696	}
1097		1697
1098	=item $player->maps	1698	=item $player->maps
		1699
		1700	=item cf::player::maps $login
1099		1701
1100	Returns an arrayref of map paths that are private for this	1702	Returns an arrayref of map paths that are private for this
1101	player. May block.	1703	player. May block.
1102		1704
1103	=cut	1705	=cut
…		…
1121	}	1723	}
1122		1724
1123	\@paths	1725	\@paths
1124	}	1726	}
1125		1727
		1728	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1729
		1730	Expand deliantra pod fragments into protocol xml.
		1731
1126	=item $player->ext_reply ($msgid, $msgtype, %msg)	1732	=item $player->ext_reply ($msgid, @msg)
1127		1733
1128	Sends an ext reply to the player.	1734	Sends an ext reply to the player.
1129		1735
1130	=cut	1736	=cut
1131		1737
1132	sub ext_reply($$$%) {	1738	sub ext_reply($$@) {
1133	my ($self, $id, %msg) = @_;	1739	my ($self, $id, @msg) = @_;
1134		1740
1135	$msg{msgid} = $id;	1741	$self->ns->ext_reply ($id, @msg)
1136
1137	$self->send ("ext " . cf::to_json \%msg);
1138	}	1742	}
1139		1743
1140	package cf;	1744	=item $player->ext_msg ($type, @msg)
		1745
		1746	Sends an ext event to the client.
		1747
		1748	=cut
		1749
		1750	sub ext_msg($$@) {
		1751	my ($self, $type, @msg) = @_;
		1752
		1753	$self->ns->ext_msg ($type, @msg);
		1754	}
		1755
		1756	=head3 cf::region
		1757
		1758	=over 4
		1759
		1760	=cut
		1761
		1762	package cf::region;
		1763
		1764	=item cf::region::find_by_path $path
		1765
		1766	Tries to decuce the likely region for a map knowing only its path.
		1767
		1768	=cut
		1769
		1770	sub find_by_path($) {
		1771	my ($path) = @_;
		1772
		1773	$path =~ s/^~[^\/]*//; # skip ~login
		1774
		1775	my ($match, $specificity);
		1776
		1777	for my $region (list) {
		1778	if ($region->{match} && $path =~ $region->{match}) {
		1779	($match, $specificity) = ($region, $region->specificity)
		1780	if $region->specificity > $specificity;
		1781	}
		1782	}
		1783
		1784	$match
		1785	}
1141		1786
1142	=back	1787	=back
1143
1144		1788
1145	=head3 cf::map	1789	=head3 cf::map
1146		1790
1147	=over 4	1791	=over 4
1148		1792
…		…
1160	our $MAX_RESET = 3600;	1804	our $MAX_RESET = 3600;
1161	our $DEFAULT_RESET = 3000;	1805	our $DEFAULT_RESET = 3000;
1162		1806
1163	sub generate_random_map {	1807	sub generate_random_map {
1164	my ($self, $rmp) = @_;	1808	my ($self, $rmp) = @_;
		1809
		1810	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1811
1165	# mit "rum" bekleckern, nicht	1812	# mit "rum" bekleckern, nicht
1166	$self->_create_random_map (	1813	$self->_create_random_map (
1167	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1814	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1168	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1815	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1169	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1816	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1170	$rmp->{exit_on_final_map},	1817	$rmp->{exit_on_final_map},
1171	$rmp->{xsize}, $rmp->{ysize},	1818	$rmp->{xsize}, $rmp->{ysize},
1172	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1819	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1173	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1820	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1195		1842
1196	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1843	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1197	}	1844	}
1198		1845
1199	# also paths starting with '/'	1846	# also paths starting with '/'
1200	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1847	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1201		1848
1202	sub thawer_merge {	1849	sub thawer_merge {
1203	my ($self, $merge) = @_;	1850	my ($self, $merge) = @_;
1204		1851
1205	# we have to keep some variables in memory intact	1852	# we have to keep some variables in memory intact
1206	local $self->{path};	1853	local $self->{path};
1207	local $self->{load_path};	1854	local $self->{load_path};
1208	local $self->{deny_save};
1209	local $self->{deny_reset};
1210		1855
1211	$self->SUPER::thawer_merge ($merge);	1856	$self->SUPER::thawer_merge ($merge);
1212	}	1857	}
1213		1858
1214	sub normalise {	1859	sub normalise {
…		…
1261	$self->init; # pass $1 etc.	1906	$self->init; # pass $1 etc.
1262	return $self;	1907	return $self;
1263	}	1908	}
1264	}	1909	}
1265		1910
1266	Carp::carp "unable to resolve path '$path' (base '$base').";	1911	Carp::cluck "unable to resolve path '$path' (base '$base').";
1267	()	1912	()
1268	}	1913	}
1269		1914
1270	sub init {	1915	sub init {
1271	my ($self) = @_;	1916	my ($self) = @_;
…		…
1286		1931
1287	# the original (read-only) location	1932	# the original (read-only) location
1288	sub load_path {	1933	sub load_path {
1289	my ($self) = @_;	1934	my ($self) = @_;
1290		1935
1291	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1936	"$MAPDIR/$self->{path}.map"
1292	}	1937	}
1293		1938
1294	# the temporary/swap location	1939	# the temporary/swap location
1295	sub save_path {	1940	sub save_path {
1296	my ($self) = @_;	1941	my ($self) = @_;
1297		1942
1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1943	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1299	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1944	"$TMPDIR/$path.map"
1300	}	1945	}
1301		1946
1302	# the unique path, undef == no special unique path	1947	# the unique path, undef == no special unique path
1303	sub uniq_path {	1948	sub uniq_path {
1304	my ($self) = @_;	1949	my ($self) = @_;
1305		1950
1306	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1951	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1307	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1952	"$UNIQUEDIR/$path"
1308	}	1953	}
1309		1954
1310	# and all this just because we cannot iterate over	1955	sub decay_objects {
1311	# all maps in C++...
1312	sub change_all_map_light {
1313	my ($change) = @_;	1956	my ($self) = @_;
1314		1957
1315	$_->change_map_light ($change)	1958	return if $self->{deny_reset};
1316	for grep $_->outdoor, values %cf::MAP;	1959
		1960	$self->do_decay_objects;
1317	}	1961	}
1318		1962
1319	sub unlink_save {	1963	sub unlink_save {
1320	my ($self) = @_;	1964	my ($self) = @_;
1321		1965
…		…
1326		1970
1327	sub load_header_from($) {	1971	sub load_header_from($) {
1328	my ($self, $path) = @_;	1972	my ($self, $path) = @_;
1329		1973
1330	utf8::encode $path;	1974	utf8::encode $path;
1331	#aio_open $path, O_RDONLY, 0	1975	my $f = new_from_file cf::object::thawer $path
1332	# or return;
1333
1334	$self->_load_header ($path)
1335	or return;	1976	or return;
		1977
		1978	$self->_load_header ($f)
		1979	or return;
		1980
		1981	local $MAP_LOADING{$self->{path}} = $self;
		1982	$f->resolve_delayed_derefs;
1336		1983
1337	$self->{load_path} = $path;	1984	$self->{load_path} = $path;
1338		1985
1339	1	1986	1
1340	}	1987	}
…		…
1379	$self->load_header_orig	2026	$self->load_header_orig
1380	or return;	2027	or return;
1381	$self->prepare_orig;	2028	$self->prepare_orig;
1382	}	2029	}
1383		2030
		2031	$self->{deny_reset} = 1
		2032	if $self->no_reset;
		2033
		2034	$self->default_region (cf::region::find_by_path $self->{path})
		2035	unless $self->default_region;
		2036
1384	1	2037	1
1385	}	2038	}
1386		2039
1387	sub find;	2040	sub find;
1388	sub find {	2041	sub find {
1389	my ($path, $origin) = @_;	2042	my ($path, $origin) = @_;
1390		2043
1391	$path = normalise $path, $origin && $origin->path;	2044	$path = normalise $path, $origin && $origin->path;
1392		2045
		2046	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1393	cf::lock_wait "map_find:$path";	2047	my $guard2 = cf::lock_acquire "map_find:$path";
1394		2048
1395	$cf::MAP{$path} || do {	2049	$cf::MAP{$path} || do {
1396	my $guard = cf::lock_acquire "map_find:$path";
1397	my $map = new_from_path cf::map $path	2050	my $map = new_from_path cf::map $path
1398	or return;	2051	or return;
1399		2052
1400	$map->{last_save} = $cf::RUNTIME;	2053	$map->{last_save} = $cf::RUNTIME;
1401		2054
1402	$map->load_header	2055	$map->load_header
1403	or return;	2056	or return;
1404		2057
1405	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2058	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1406	# doing this can freeze the server in a sync job, obviously	2059	# doing this can freeze the server in a sync job, obviously
1407	#$cf::WAIT_FOR_TICK->wait;	2060	#$cf::WAIT_FOR_TICK->wait;
		2061	undef $guard2;
		2062	undef $guard1;
1408	$map->reset;	2063	$map->reset;
1409	undef $guard;
1410	return find $path;	2064	return find $path;
1411	}	2065	}
1412		2066
1413	$cf::MAP{$path} = $map	2067	$cf::MAP{$path} = $map
1414	}	2068	}
1415	}	2069	}
1416		2070
1417	sub pre_load { }	2071	sub pre_load { }
1418	sub post_load { }	2072	#sub post_load { } # XS
1419		2073
1420	sub load {	2074	sub load {
1421	my ($self) = @_;	2075	my ($self) = @_;
1422		2076
1423	local $self->{deny_reset} = 1; # loading can take a long time	2077	local $self->{deny_reset} = 1; # loading can take a long time
1424		2078
1425	my $path = $self->{path};	2079	my $path = $self->{path};
		2080
		2081	{
1426	my $guard = cf::lock_acquire "map_load:$path";	2082	my $guard = cf::lock_acquire "map_data:$path";
1427		2083
		2084	return unless $self->valid;
1428	return if $self->in_memory != cf::MAP_SWAPPED;	2085	return unless $self->in_memory == cf::MAP_SWAPPED;
1429		2086
1430	$self->in_memory (cf::MAP_LOADING);	2087	$self->in_memory (cf::MAP_LOADING);
1431		2088
1432	$self->alloc;	2089	$self->alloc;
1433		2090
1434	$self->pre_load;	2091	$self->pre_load;
		2092	cf::cede_to_tick;
1435		2093
1436	$self->_load_objects ($self->{load_path}, 1)	2094	my $f = new_from_file cf::object::thawer $self->{load_path};
		2095	$f->skip_block;
		2096	$self->_load_objects ($f)
1437	or return;	2097	or return;
1438		2098
1439	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2099	$self->post_load_original
1440	if delete $self->{load_original};	2100	if delete $self->{load_original};
1441		2101
1442	if (my $uniq = $self->uniq_path) {	2102	if (my $uniq = $self->uniq_path) {
1443	utf8::encode $uniq;	2103	utf8::encode $uniq;
1444	if (aio_open $uniq, O_RDONLY, 0) {	2104	unless (aio_stat $uniq) {
		2105	if (my $f = new_from_file cf::object::thawer $uniq) {
1445	$self->clear_unique_items;	2106	$self->clear_unique_items;
1446	$self->_load_objects ($uniq, 0);	2107	$self->_load_objects ($f);
		2108	$f->resolve_delayed_derefs;
		2109	}
1447	}	2110	}
1448	}	2111	}
1449		2112
1450	Coro::cede;	2113	$f->resolve_delayed_derefs;
1451		2114
		2115	cf::cede_to_tick;
1452	# now do the right thing for maps	2116	# now do the right thing for maps
1453	$self->link_multipart_objects;	2117	$self->link_multipart_objects;
1454
1455	unless ($self->{deny_activate}) {
1456	$self->decay_objects;
1457	$self->fix_auto_apply;
1458	$self->update_buttons;
1459	Coro::cede;
1460	$self->set_darkness_map;
1461	$self->difficulty ($self->estimate_difficulty)	2118	$self->difficulty ($self->estimate_difficulty)
1462	unless $self->difficulty;	2119	unless $self->difficulty;
1463	Coro::cede;	2120	cf::cede_to_tick;
		2121
		2122	unless ($self->{deny_activate}) {
		2123	$self->decay_objects;
		2124	$self->fix_auto_apply;
		2125	$self->update_buttons;
		2126	cf::cede_to_tick;
1464	$self->activate;	2127	$self->activate;
		2128	}
		2129
		2130	$self->{last_save} = $cf::RUNTIME;
		2131	$self->last_access ($cf::RUNTIME);
		2132
		2133	$self->in_memory (cf::MAP_ACTIVE);
1465	}	2134	}
1466		2135
1467	$self->post_load;	2136	$self->post_load;
1468
1469	$self->in_memory (cf::MAP_IN_MEMORY);
1470	}	2137	}
1471		2138
		2139	# customize the map for a given player, i.e.
		2140	# return the _real_ map. used by e.g. per-player
		2141	# maps to change the path to ~playername/mappath
1472	sub customise_for {	2142	sub customise_for {
1473	my ($self, $ob) = @_;	2143	my ($self, $ob) = @_;
1474		2144
1475	return find "~" . $ob->name . "/" . $self->{path}	2145	return find "~" . $ob->name . "/" . $self->{path}
1476	if $self->per_player;	2146	if $self->per_player;
1477		2147
		2148	# return find "?party/" . $ob->name . "/" . $self->{path}
		2149	# if $self->per_party;
		2150
1478	$self	2151	$self
1479	}	2152	}
1480		2153
1481	# find and load all maps in the 3x3 area around a map	2154	# find and load all maps in the 3x3 area around a map
1482	sub load_diag {	2155	sub load_neighbours {
1483	my ($map) = @_;	2156	my ($map) = @_;
1484		2157
1485	my @diag; # diagonal neighbours	2158	my @neigh; # diagonal neighbours
1486		2159
1487	for (0 .. 3) {	2160	for (0 .. 3) {
1488	my $neigh = $map->tile_path ($_)	2161	my $neigh = $map->tile_path ($_)
1489	or next;	2162	or next;
1490	$neigh = find $neigh, $map	2163	$neigh = find $neigh, $map
1491	or next;	2164	or next;
1492	$neigh->load;	2165	$neigh->load;
1493		2166
		2167	push @neigh,
1494	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2168	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1495	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2169	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1496	}	2170	}
1497		2171
1498	for (@diag) {	2172	for (grep defined $_->[0], @neigh) {
		2173	my ($path, $origin) = @$_;
1499	my $neigh = find @$_	2174	my $neigh = find $path, $origin
1500	or next;	2175	or next;
1501	$neigh->load;	2176	$neigh->load;
1502	}	2177	}
1503	}	2178	}
1504		2179
…		…
1509	}	2184	}
1510		2185
1511	sub do_load_sync {	2186	sub do_load_sync {
1512	my ($map) = @_;	2187	my ($map) = @_;
1513		2188
		2189	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2190	if $Coro::current == $Coro::main;
		2191
1514	cf::sync_job { $map->load };	2192	cf::sync_job { $map->load };
1515	}	2193	}
1516		2194
1517	our %MAP_PREFETCH;	2195	our %MAP_PREFETCH;
1518	our $MAP_PREFETCHER = undef;	2196	our $MAP_PREFETCHER = undef;
1519		2197
1520	sub find_async {	2198	sub find_async {
1521	my ($path, $origin) = @_;	2199	my ($path, $origin, $load) = @_;
1522		2200
1523	$path = normalise $path, $origin && $origin->{path};	2201	$path = normalise $path, $origin && $origin->{path};
1524		2202
1525	if (my $map = $cf::MAP{$path}) {	2203	if (my $map = $cf::MAP{$path}) {
1526	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2204	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1527	}	2205	}
1528		2206
1529	undef $MAP_PREFETCH{$path};	2207	$MAP_PREFETCH{$path} |= $load;
		2208
1530	$MAP_PREFETCHER ||= cf::async {	2209	$MAP_PREFETCHER ||= cf::async {
		2210	$Coro::current->{desc} = "map prefetcher";
		2211
1531	while (%MAP_PREFETCH) {	2212	while (%MAP_PREFETCH) {
1532	for my $path (keys %MAP_PREFETCH) {	2213	while (my ($k, $v) = each %MAP_PREFETCH) {
1533	my $map = find $path	2214	if (my $map = find $k) {
1534	or next;
1535	$map->load;	2215	$map->load if $v;
		2216	}
1536		2217
1537	delete $MAP_PREFETCH{$path};	2218	delete $MAP_PREFETCH{$k};
1538	}	2219	}
1539	}	2220	}
1540	undef $MAP_PREFETCHER;	2221	undef $MAP_PREFETCHER;
1541	};	2222	};
1542	$MAP_PREFETCHER->prio (6);	2223	$MAP_PREFETCHER->prio (6);
1543		2224
1544	()	2225	()
1545	}	2226	}
1546		2227
		2228	# common code, used by both ->save and ->swapout
1547	sub save {	2229	sub _save {
1548	my ($self) = @_;	2230	my ($self) = @_;
1549
1550	my $lock = cf::lock_acquire "map_data:" . $self->path;
1551		2231
1552	$self->{last_save} = $cf::RUNTIME;	2232	$self->{last_save} = $cf::RUNTIME;
1553		2233
1554	return unless $self->dirty;	2234	return unless $self->dirty;
1555		2235
…		…
1561	return if $self->{deny_save};	2241	return if $self->{deny_save};
1562		2242
1563	local $self->{last_access} = $self->last_access;#d#	2243	local $self->{last_access} = $self->last_access;#d#
1564		2244
1565	cf::async {	2245	cf::async {
		2246	$Coro::current->{desc} = "map player save";
1566	$_->contr->save for $self->players;	2247	$_->contr->save for $self->players;
1567	};	2248	};
		2249
		2250	cf::get_slot 0.02;
1568		2251
1569	if ($uniq) {	2252	if ($uniq) {
1570	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2253	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1571	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2254	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1572	} else {	2255	} else {
1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2256	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1574	}	2257	}
1575	}	2258	}
1576		2259
		2260	sub save {
		2261	my ($self) = @_;
		2262
		2263	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2264
		2265	$self->_save;
		2266	}
		2267
1577	sub swap_out {	2268	sub swap_out {
1578	my ($self) = @_;	2269	my ($self) = @_;
1579		2270
1580	# save first because save cedes
1581	$self->save;
1582
1583	my $lock = cf::lock_acquire "map_data:" . $self->path;	2271	my $lock = cf::lock_acquire "map_data:$self->{path}";
1584		2272
		2273	return if $self->in_memory != cf::MAP_ACTIVE;
		2274	return if $self->{deny_save};
1585	return if $self->players;	2275	return if $self->players;
1586	return if $self->in_memory != cf::MAP_IN_MEMORY;
1587	return if $self->{deny_save};
1588		2276
		2277	# first deactivate the map and "unlink" it from the core
		2278	$self->deactivate;
		2279	$_->clear_links_to ($self) for values %cf::MAP;
		2280	$self->in_memory (cf::MAP_SWAPPED);
		2281
		2282	# then atomically save
		2283	$self->_save;
		2284
		2285	# then free the map
1589	$self->clear;	2286	$self->clear;
1590	$self->in_memory (cf::MAP_SWAPPED);
1591	}	2287	}
1592		2288
1593	sub reset_at {	2289	sub reset_at {
1594	my ($self) = @_;	2290	my ($self) = @_;
1595		2291
1596	# TODO: safety, remove and allow resettable per-player maps	2292	# TODO: safety, remove and allow resettable per-player maps
1597	return 1e99 if $self->isa ("ext::map_per_player");#d#
1598	return 1e99 if $self->{deny_reset};	2293	return 1e99 if $self->{deny_reset};
1599		2294
1600	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2295	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1601	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2296	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1602		2297
…		…
1613	my ($self) = @_;	2308	my ($self) = @_;
1614		2309
1615	my $lock = cf::lock_acquire "map_data:$self->{path}";	2310	my $lock = cf::lock_acquire "map_data:$self->{path}";
1616		2311
1617	return if $self->players;	2312	return if $self->players;
1618	return if $self->isa ("ext::map_per_player");#d#
1619		2313
1620	warn "resetting map ", $self->path;#d#	2314	warn "resetting map ", $self->path, "\n";
1621		2315
1622	$self->in_memory (cf::MAP_SWAPPED);	2316	$self->in_memory (cf::MAP_SWAPPED);
1623		2317
1624	# need to save uniques path	2318	# need to save uniques path
1625	unless ($self->{deny_save}) {	2319	unless ($self->{deny_save}) {
…		…
1629	if $uniq;	2323	if $uniq;
1630	}	2324	}
1631		2325
1632	delete $cf::MAP{$self->path};	2326	delete $cf::MAP{$self->path};
1633		2327
		2328	$self->deactivate;
		2329	$_->clear_links_to ($self) for values %cf::MAP;
1634	$self->clear;	2330	$self->clear;
1635
1636	$_->clear_links_to ($self) for values %cf::MAP;
1637		2331
1638	$self->unlink_save;	2332	$self->unlink_save;
1639	$self->destroy;	2333	$self->destroy;
1640	}	2334	}
1641		2335
1642	my $nuke_counter = "aaaa";	2336	my $nuke_counter = "aaaa";
1643		2337
1644	sub nuke {	2338	sub nuke {
1645	my ($self) = @_;	2339	my ($self) = @_;
1646		2340
		2341	{
		2342	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2343
1647	delete $cf::MAP{$self->path};	2344	delete $cf::MAP{$self->path};
1648		2345
1649	$self->unlink_save;	2346	$self->unlink_save;
1650		2347
1651	bless $self, "cf::map";	2348	bless $self, "cf::map::wrap";
1652	delete $self->{deny_reset};	2349	delete $self->{deny_reset};
1653	$self->{deny_save} = 1;	2350	$self->{deny_save} = 1;
1654	$self->reset_timeout (1);	2351	$self->reset_timeout (1);
1655	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2352	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1656		2353
1657	$cf::MAP{$self->path} = $self;	2354	$cf::MAP{$self->path} = $self;
		2355	}
1658		2356
1659	$self->reset; # polite request, might not happen	2357	$self->reset; # polite request, might not happen
		2358	}
		2359
		2360	=item $maps = cf::map::tmp_maps
		2361
		2362	Returns an arrayref with all map paths of currently instantiated and saved
		2363	maps. May block.
		2364
		2365	=cut
		2366
		2367	sub tmp_maps() {
		2368	[
		2369	map {
		2370	utf8::decode $_;
		2371	/\.map$/
		2372	? normalise $_
		2373	: ()
		2374	} @{ aio_readdir $TMPDIR or [] }
		2375	]
		2376	}
		2377
		2378	=item $maps = cf::map::random_maps
		2379
		2380	Returns an arrayref with all map paths of currently instantiated and saved
		2381	random maps. May block.
		2382
		2383	=cut
		2384
		2385	sub random_maps() {
		2386	[
		2387	map {
		2388	utf8::decode $_;
		2389	/\.map$/
		2390	? normalise "?random/$_"
		2391	: ()
		2392	} @{ aio_readdir $RANDOMDIR or [] }
		2393	]
1660	}	2394	}
1661		2395
1662	=item cf::map::unique_maps	2396	=item cf::map::unique_maps
1663		2397
1664	Returns an arrayref of paths of all shared maps that have	2398	Returns an arrayref of paths of all shared maps that have
1665	instantiated unique items. May block.	2399	instantiated unique items. May block.
1666		2400
1667	=cut	2401	=cut
1668		2402
1669	sub unique_maps() {	2403	sub unique_maps() {
1670	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2404	[
1671	or return;	2405	map {
1672
1673	my @paths;
1674
1675	for (@$files) {
1676	utf8::decode $_;	2406	utf8::decode $_;
1677	next if /\.pst$/;	2407	s/\.map$//; # TODO future compatibility hack
1678	next unless /^$PATH_SEP/o;	2408	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1679		2409	? ()
1680	push @paths, cf::map::normalise $_;	2410	: normalise $_
		2411	} @{ aio_readdir $UNIQUEDIR or [] }
1681	}	2412	]
1682
1683	\@paths
1684	}	2413	}
1685		2414
1686	package cf;	2415	=item cf::map::static_maps
		2416
		2417	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2418	file in the shared directory excluding F</styles> and F</editor>). May
		2419	block.
		2420
		2421	=cut
		2422
		2423	sub static_maps() {
		2424	my @dirs = "";
		2425	my @maps;
		2426
		2427	while (@dirs) {
		2428	my $dir = shift @dirs;
		2429
		2430	next if $dir eq "/styles" || $dir eq "/editor";
		2431
		2432	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2433	or return;
		2434
		2435	for (@$files) {
		2436	s/\.map$// or next;
		2437	utf8::decode $_;
		2438	push @maps, "$dir/$_";
		2439	}
		2440
		2441	push @dirs, map "$dir/$_", @$dirs;
		2442	}
		2443
		2444	\@maps
		2445	}
1687		2446
1688	=back	2447	=back
1689		2448
1690	=head3 cf::object	2449	=head3 cf::object
1691		2450
…		…
1695		2454
1696	=over 4	2455	=over 4
1697		2456
1698	=item $ob->inv_recursive	2457	=item $ob->inv_recursive
1699		2458
1700	Returns the inventory of the object _and_ their inventories, recursively.	2459	Returns the inventory of the object I<and> their inventories, recursively,
		2460	but I<not> the object itself.
1701		2461
1702	=cut	2462	=cut
1703		2463
1704	sub inv_recursive_;	2464	sub inv_recursive_;
1705	sub inv_recursive_ {	2465	sub inv_recursive_ {
…		…
1708		2468
1709	sub inv_recursive {	2469	sub inv_recursive {
1710	inv_recursive_ inv $_[0]	2470	inv_recursive_ inv $_[0]
1711	}	2471	}
1712		2472
		2473	=item $ref = $ob->ref
		2474
		2475	Creates and returns a persistent reference to an object that can be stored as a string.
		2476
		2477	=item $ob = cf::object::deref ($refstring)
		2478
		2479	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2480	even if the object actually exists. May block.
		2481
		2482	=cut
		2483
		2484	sub deref {
		2485	my ($ref) = @_;
		2486
		2487	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2488	my ($uuid, $name) = ($1, $2);
		2489	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2490	or return;
		2491	$pl->ob->uuid eq $uuid
		2492	or return;
		2493
		2494	$pl->ob
		2495	} else {
		2496	warn "$ref: cannot resolve object reference\n";
		2497	undef
		2498	}
		2499	}
		2500
1713	package cf;	2501	package cf;
1714		2502
1715	=back	2503	=back
1716		2504
1717	=head3 cf::object::player	2505	=head3 cf::object::player
…		…
1723	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2511	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1724	can be C<undef>. Does the right thing when the player is currently in a	2512	can be C<undef>. Does the right thing when the player is currently in a
1725	dialogue with the given NPC character.	2513	dialogue with the given NPC character.
1726		2514
1727	=cut	2515	=cut
		2516
		2517	our $SAY_CHANNEL = {
		2518	id => "say",
		2519	title => "Map",
		2520	reply => "say ",
		2521	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2522	};
		2523
		2524	our $CHAT_CHANNEL = {
		2525	id => "chat",
		2526	title => "Chat",
		2527	reply => "chat ",
		2528	tooltip => "Player chat and shouts, global to the server.",
		2529	};
1728		2530
1729	# rough implementation of a future "reply" method that works	2531	# rough implementation of a future "reply" method that works
1730	# with dialog boxes.	2532	# with dialog boxes.
1731	#TODO: the first argument must go, split into a $npc->reply_to ( method	2533	#TODO: the first argument must go, split into a $npc->reply_to ( method
1732	sub cf::object::player::reply($$$;$) {	2534	sub cf::object::player::reply($$$;$) {
…		…
1734		2536
1735	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2537	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1736		2538
1737	if ($self->{record_replies}) {	2539	if ($self->{record_replies}) {
1738	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2540	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2541
1739	} else {	2542	} else {
		2543	my $pl = $self->contr;
		2544
		2545	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2546	my $dialog = $pl->{npc_dialog};
		2547	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2548
		2549	} else {
1740	$msg = $npc->name . " says: $msg" if $npc;	2550	$msg = $npc->name . " says: $msg" if $npc;
1741	$self->message ($msg, $flags);	2551	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2552	}
1742	}	2553	}
		2554	}
		2555
		2556	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2557
		2558	=cut
		2559
		2560	sub cf::object::send_msg {
		2561	my $pl = shift->contr
		2562	or return;
		2563	$pl->send_msg (@_);
1743	}	2564	}
1744		2565
1745	=item $player_object->may ("access")	2566	=item $player_object->may ("access")
1746		2567
1747	Returns wether the given player is authorized to access resource "access"	2568	Returns wether the given player is authorized to access resource "access"
…		…
1760		2581
1761	=item $player_object->enter_link	2582	=item $player_object->enter_link
1762		2583
1763	Freezes the player and moves him/her to a special map (C<{link}>).	2584	Freezes the player and moves him/her to a special map (C<{link}>).
1764		2585
1765	The player should be reasonably safe there for short amounts of time. You	2586	The player should be reasonably safe there for short amounts of time (e.g.
1766	I<MUST> call C<leave_link> as soon as possible, though.	2587	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2588	though, as the palyer cannot control the character while it is on the link
		2589	map.
1767		2590
1768	Will never block.	2591	Will never block.
1769		2592
1770	=item $player_object->leave_link ($map, $x, $y)	2593	=item $player_object->leave_link ($map, $x, $y)
1771		2594
…		…
1794	$self->deactivate_recursive;	2617	$self->deactivate_recursive;
1795		2618
1796	return if UNIVERSAL::isa $self->map, "ext::map_link";	2619	return if UNIVERSAL::isa $self->map, "ext::map_link";
1797		2620
1798	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2621	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1799	if $self->map;	2622	if $self->map && $self->map->{path} ne "{link}";
1800		2623
1801	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2624	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1802	}	2625	}
1803		2626
1804	sub cf::object::player::leave_link {	2627	sub cf::object::player::leave_link {
1805	my ($self, $map, $x, $y) = @_;	2628	my ($self, $map, $x, $y) = @_;
		2629
		2630	return unless $self->contr->active;
1806		2631
1807	my $link_pos = delete $self->{_link_pos};	2632	my $link_pos = delete $self->{_link_pos};
1808		2633
1809	unless ($map) {	2634	unless ($map) {
1810	# restore original map position	2635	# restore original map position
…		…
1821	($x, $y) = (-1, -1)	2646	($x, $y) = (-1, -1)
1822	unless (defined $x) && (defined $y);	2647	unless (defined $x) && (defined $y);
1823		2648
1824	# use -1 or undef as default coordinates, not 0, 0	2649	# use -1 or undef as default coordinates, not 0, 0
1825	($x, $y) = ($map->enter_x, $map->enter_y)	2650	($x, $y) = ($map->enter_x, $map->enter_y)
1826	if $x <=0 && $y <= 0;	2651	if $x <= 0 && $y <= 0;
1827		2652
1828	$map->load;	2653	$map->load;
1829	$map->load_diag;	2654	$map->load_neighbours;
1830		2655
1831	return unless $self->contr->active;	2656	return unless $self->contr->active;
1832	$self->activate_recursive;
1833		2657
1834	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2658	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1835	$self->enter_map ($map, $x, $y);	2659	$self->enter_map ($map, $x, $y);
1836	}
1837		2660
1838	cf::player->attach (	2661	# only activate afterwards, to support waiting in hooks
1839	on_logout => sub {	2662	$self->activate_recursive
1840	my ($pl) = @_;	2663	unless exists $self->{_link_pos}; # maybe we re in-flight again
		2664	}
1841		2665
1842	# abort map switching before logout	2666	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1843	if ($pl->ob->{_link_pos}) {
1844	cf::sync_job {
1845	$pl->ob->leave_link
1846	};
1847	}
1848	},
1849	on_login => sub {
1850	my ($pl) = @_;
1851		2667
1852	# try to abort aborted map switching on player login :)	2668	Moves the player to the given map-path and coordinates by first freezing
1853	# should happen only on crashes	2669	her, loading and preparing them map, calling the provided $check callback
1854	if ($pl->ob->{_link_pos}) {	2670	that has to return the map if sucecssful, and then unfreezes the player on
1855	$pl->ob->enter_link;	2671	the new (success) or old (failed) map position. In either case, $done will
1856	(async {	2672	be called at the end of this process.
1857	$pl->ob->reply (undef,
1858	"There was an internal problem at your last logout, "
1859	. "the server will try to bring you to your intended destination in a second.",
1860	cf::NDI_RED);
1861	# we need this sleep as the login has a concurrent enter_exit running
1862	# and this sleep increases chances of the player not ending up in scorn
1863	Coro::Timer::sleep 1;
1864	$pl->ob->leave_link;
1865	})->prio (2);
1866	}
1867	},
1868	);
1869		2673
1870	=item $player_object->goto ($path, $x, $y)	2674	Note that $check will be called with a potentially non-loaded map, so if
		2675	it needs a loaded map it has to call C<< ->load >>.
1871		2676
1872	=cut	2677	=cut
		2678
		2679	our $GOTOGEN;
1873		2680
1874	sub cf::object::player::goto {	2681	sub cf::object::player::goto {
1875	my ($self, $path, $x, $y) = @_;	2682	my ($self, $path, $x, $y, $check, $done) = @_;
		2683
		2684	# do generation counting so two concurrent goto's will be executed in-order
		2685	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1876		2686
1877	$self->enter_link;	2687	$self->enter_link;
1878		2688
1879	(async {	2689	(async {
		2690	$Coro::current->{desc} = "player::goto $path $x $y";
		2691
		2692	# *tag paths override both path and x|y
		2693	if ($path =~ /^\*(.*)$/) {
		2694	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2695	my $ob = $obs[rand @obs];
		2696
		2697	# see if we actually can go there
		2698	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2699	$ob = $obs[rand @obs];
		2700	} else {
		2701	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2702	}
		2703	# else put us there anyways for now #d#
		2704
		2705	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2706	} else {
		2707	($path, $x, $y) = (undef, undef, undef);
		2708	}
		2709	}
		2710
1880	my $map = eval {	2711	my $map = eval {
1881	my $map = cf::map::find $path;	2712	my $map = defined $path ? cf::map::find $path : undef;
		2713
		2714	if ($map) {
1882	$map = $map->customise_for ($self) if $map;	2715	$map = $map->customise_for ($self);
		2716	$map = $check->($map) if $check && $map;
		2717	} else {
		2718	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2719	}
		2720
1883	$map	2721	$map
		2722	};
		2723
		2724	if ($@) {
		2725	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2726	LOG llevError | logBacktrace, Carp::longmess $@;
1884	} or	2727	}
1885	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1886		2728
		2729	if ($gen == $self->{_goto_generation}) {
		2730	delete $self->{_goto_generation};
1887	$self->leave_link ($map, $x, $y);	2731	$self->leave_link ($map, $x, $y);
		2732	}
		2733
		2734	$done->() if $done;
1888	})->prio (1);	2735	})->prio (1);
1889	}	2736	}
1890		2737
1891	=item $player_object->enter_exit ($exit_object)	2738	=item $player_object->enter_exit ($exit_object)
1892		2739
…		…
1912	}	2759	}
1913		2760
1914	sub prepare_random_map {	2761	sub prepare_random_map {
1915	my ($exit) = @_;	2762	my ($exit) = @_;
1916		2763
1917	my $guard = cf::lock_acquire "exit_prepare:$exit";
1918
1919	# all this does is basically replace the /! path by	2764	# all this does is basically replace the /! path by
1920	# a new random map path (?random/...) with a seed	2765	# a new random map path (?random/...) with a seed
1921	# that depends on the exit object	2766	# that depends on the exit object
1922		2767
1923	my $rmp = parse_random_map_params $exit->msg;	2768	my $rmp = parse_random_map_params $exit->msg;
…		…
1925	if ($exit->map) {	2770	if ($exit->map) {
1926	$rmp->{region} = $exit->region->name;	2771	$rmp->{region} = $exit->region->name;
1927	$rmp->{origin_map} = $exit->map->path;	2772	$rmp->{origin_map} = $exit->map->path;
1928	$rmp->{origin_x} = $exit->x;	2773	$rmp->{origin_x} = $exit->x;
1929	$rmp->{origin_y} = $exit->y;	2774	$rmp->{origin_y} = $exit->y;
		2775
		2776	$exit->map->touch;
1930	}	2777	}
1931		2778
1932	$rmp->{random_seed} ||= $exit->random_seed;	2779	$rmp->{random_seed} ||= $exit->random_seed;
1933		2780
1934	my $data = cf::to_json $rmp;	2781	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1935	my $md5 = Digest::MD5::md5_hex $data;	2782	my $md5 = Digest::MD5::md5_hex $data;
1936	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2783	my $meta = "$RANDOMDIR/$md5.meta";
1937		2784
1938	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2785	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1939	aio_write $fh, 0, (length $data), $data, 0;	2786	aio_write $fh, 0, (length $data), $data, 0;
1940	undef $fh;	2787	undef $fh;
1941	aio_rename "$meta~", $meta;	2788	aio_rename "$meta~", $meta;
1942		2789
		2790	my $slaying = "?random/$md5";
		2791
		2792	if ($exit->valid) {
1943	$exit->slaying ("?random/$md5");	2793	$exit->slaying ("?random/$md5");
1944	$exit->msg (undef);	2794	$exit->msg (undef);
		2795	}
1945	}	2796	}
1946	}	2797	}
1947		2798
1948	sub cf::object::player::enter_exit {	2799	sub cf::object::player::enter_exit {
1949	my ($self, $exit) = @_;	2800	my ($self, $exit) = @_;
1950		2801
1951	return unless $self->type == cf::PLAYER;	2802	return unless $self->type == cf::PLAYER;
1952		2803
1953	if ($exit->slaying eq "/!") {
1954	#TODO: this should de-fi-ni-te-ly not be a sync-job
1955	cf::sync_job { prepare_random_map $exit };
1956	}
1957
1958	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1959	my $hp = $exit->stats->hp;
1960	my $sp = $exit->stats->sp;
1961
1962	$self->enter_link;	2804	$self->enter_link;
1963		2805
1964	(async {	2806	(async {
1965	$self->deactivate_recursive; # just to be sure	2807	$Coro::current->{desc} = "enter_exit";
		2808
1966	unless (eval {	2809	unless (eval {
		2810	$self->deactivate_recursive; # just to be sure
		2811
		2812	# random map handling
		2813	{
		2814	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2815
		2816	prepare_random_map $exit
		2817	if $exit->slaying eq "/!";
		2818	}
		2819
		2820	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2821	my $x = $exit->stats->hp;
		2822	my $y = $exit->stats->sp;
		2823
1967	$self->goto ($slaying, $hp, $sp);	2824	$self->goto ($map, $x, $y);
1968		2825
		2826	# if exit is damned, update players death & WoR home-position
		2827	$self->contr->savebed ($map, $x, $y)
		2828	if $exit->flag (cf::FLAG_DAMNED);
		2829
1969	1;	2830	1
1970	}) {	2831	}) {
1971	$self->message ("Something went wrong deep within the crossfire server. "	2832	$self->message ("Something went wrong deep within the deliantra server. "
1972	. "I'll try to bring you back to the map you were before. "	2833	. "I'll try to bring you back to the map you were before. "
1973	. "Please report this to the dungeon master!",	2834	. "Please report this to the dungeon master!",
1974	cf::NDI_UNIQUE | cf::NDI_RED);	2835	cf::NDI_UNIQUE | cf::NDI_RED);
1975		2836
1976	warn "ERROR in enter_exit: $@";	2837	warn "ERROR in enter_exit: $@";
1977	$self->leave_link;	2838	$self->leave_link;
1978	}	2839	}
1979	})->prio (1);	2840	})->prio (1);
…		…
1992		2853
1993	sub cf::client::send_drawinfo {	2854	sub cf::client::send_drawinfo {
1994	my ($self, $text, $flags) = @_;	2855	my ($self, $text, $flags) = @_;
1995		2856
1996	utf8::encode $text;	2857	utf8::encode $text;
1997	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2858	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1998	}	2859	}
1999		2860
		2861	=item $client->send_big_packet ($pkt)
		2862
		2863	Like C<send_packet>, but tries to compress large packets, and fragments
		2864	them as required.
		2865
		2866	=cut
		2867
		2868	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2869
		2870	sub cf::client::send_big_packet {
		2871	my ($self, $pkt) = @_;
		2872
		2873	# try lzf for large packets
		2874	$pkt = "lzf " . Compress::LZF::compress $pkt
		2875	if 1024 <= length $pkt and $self->{can_lzf};
		2876
		2877	# split very large packets
		2878	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2879	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2880	$pkt = "frag";
		2881	}
		2882
		2883	$self->send_packet ($pkt);
		2884	}
		2885
		2886	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2887
		2888	Send a drawinfo or msg packet to the client, formatting the msg for the
		2889	client if neccessary. C<$type> should be a string identifying the type of
		2890	the message, with C<log> being the default. If C<$color> is negative, suppress
		2891	the message unless the client supports the msg packet.
		2892
		2893	=cut
		2894
		2895	# non-persistent channels (usually the info channel)
		2896	our %CHANNEL = (
		2897	"c/motd" => {
		2898	id => "infobox",
		2899	title => "MOTD",
		2900	reply => undef,
		2901	tooltip => "The message of the day",
		2902	},
		2903	"c/identify" => {
		2904	id => "infobox",
		2905	title => "Identify",
		2906	reply => undef,
		2907	tooltip => "Items recently identified",
		2908	},
		2909	"c/examine" => {
		2910	id => "infobox",
		2911	title => "Examine",
		2912	reply => undef,
		2913	tooltip => "Signs and other items you examined",
		2914	},
		2915	"c/shopinfo" => {
		2916	id => "infobox",
		2917	title => "Shop Info",
		2918	reply => undef,
		2919	tooltip => "What your bargaining skill tells you about the shop",
		2920	},
		2921	"c/book" => {
		2922	id => "infobox",
		2923	title => "Book",
		2924	reply => undef,
		2925	tooltip => "The contents of a note or book",
		2926	},
		2927	"c/lookat" => {
		2928	id => "infobox",
		2929	title => "Look",
		2930	reply => undef,
		2931	tooltip => "What you saw there",
		2932	},
		2933	"c/who" => {
		2934	id => "infobox",
		2935	title => "Players",
		2936	reply => undef,
		2937	tooltip => "Shows players who are currently online",
		2938	},
		2939	"c/body" => {
		2940	id => "infobox",
		2941	title => "Body Parts",
		2942	reply => undef,
		2943	tooltip => "Shows which body parts you posess and are available",
		2944	},
		2945	"c/statistics" => {
		2946	id => "infobox",
		2947	title => "Statistics",
		2948	reply => undef,
		2949	tooltip => "Shows your primary statistics",
		2950	},
		2951	"c/skills" => {
		2952	id => "infobox",
		2953	title => "Skills",
		2954	reply => undef,
		2955	tooltip => "Shows your experience per skill and item power",
		2956	},
		2957	"c/shopitems" => {
		2958	id => "infobox",
		2959	title => "Shop Items",
		2960	reply => undef,
		2961	tooltip => "Shows the items currently for sale in this shop",
		2962	},
		2963	"c/resistances" => {
		2964	id => "infobox",
		2965	title => "Resistances",
		2966	reply => undef,
		2967	tooltip => "Shows your resistances",
		2968	},
		2969	"c/pets" => {
		2970	id => "infobox",
		2971	title => "Pets",
		2972	reply => undef,
		2973	tooltip => "Shows information abotu your pets/a specific pet",
		2974	},
		2975	"c/perceiveself" => {
		2976	id => "infobox",
		2977	title => "Perceive Self",
		2978	reply => undef,
		2979	tooltip => "You gained detailed knowledge about yourself",
		2980	},
		2981	"c/uptime" => {
		2982	id => "infobox",
		2983	title => "Uptime",
		2984	reply => undef,
		2985	tooltip => "How long the server has been running since last restart",
		2986	},
		2987	"c/mapinfo" => {
		2988	id => "infobox",
		2989	title => "Map Info",
		2990	reply => undef,
		2991	tooltip => "Information related to the maps",
		2992	},
		2993	"c/party" => {
		2994	id => "party",
		2995	title => "Party",
		2996	reply => "gsay ",
		2997	tooltip => "Messages and chat related to your party",
		2998	},
		2999	"c/death" => {
		3000	id => "death",
		3001	title => "Death",
		3002	reply => undef,
		3003	tooltip => "Reason for and more info about your most recent death",
		3004	},
		3005	"c/say" => $SAY_CHANNEL,
		3006	"c/chat" => $CHAT_CHANNEL,
		3007	);
		3008
		3009	sub cf::client::send_msg {
		3010	my ($self, $channel, $msg, $color, @extra) = @_;
		3011
		3012	$msg = $self->pl->expand_cfpod ($msg)
		3013	unless $color & cf::NDI_VERBATIM;
		3014
		3015	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3016
		3017	# check predefined channels, for the benefit of C
		3018	if ($CHANNEL{$channel}) {
		3019	$channel = $CHANNEL{$channel};
		3020
		3021	$self->ext_msg (channel_info => $channel);
		3022	$channel = $channel->{id};
		3023
		3024	} elsif (ref $channel) {
		3025	# send meta info to client, if not yet sent
		3026	unless (exists $self->{channel}{$channel->{id}}) {
		3027	$self->{channel}{$channel->{id}} = $channel;
		3028	$self->ext_msg (channel_info => $channel);
		3029	}
		3030
		3031	$channel = $channel->{id};
		3032	}
		3033
		3034	return unless @extra || length $msg;
		3035
		3036	# default colour, mask it out
		3037	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3038	if $color & cf::NDI_DEF;
		3039
		3040	my $pkt = "msg "
		3041	. $self->{json_coder}->encode (
		3042	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3043	);
		3044
		3045	$self->send_big_packet ($pkt);
		3046	}
		3047
		3048	=item $client->ext_msg ($type, @msg)
		3049
		3050	Sends an ext event to the client.
		3051
		3052	=cut
		3053
		3054	sub cf::client::ext_msg($$@) {
		3055	my ($self, $type, @msg) = @_;
		3056
		3057	if ($self->extcmd == 2) {
		3058	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3059	} elsif ($self->extcmd == 1) { # TODO: remove
		3060	push @msg, msgtype => "event_$type";
		3061	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3062	}
		3063	}
		3064
		3065	=item $client->ext_reply ($msgid, @msg)
		3066
		3067	Sends an ext reply to the client.
		3068
		3069	=cut
		3070
		3071	sub cf::client::ext_reply($$@) {
		3072	my ($self, $id, @msg) = @_;
		3073
		3074	if ($self->extcmd == 2) {
		3075	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3076	} elsif ($self->extcmd == 1) {
		3077	#TODO: version 1, remove
		3078	unshift @msg, msgtype => "reply", msgid => $id;
		3079	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3080	}
		3081	}
2000		3082
2001	=item $success = $client->query ($flags, "text", \&cb)	3083	=item $success = $client->query ($flags, "text", \&cb)
2002		3084
2003	Queues a query to the client, calling the given callback with	3085	Queues a query to the client, calling the given callback with
2004	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3086	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2005	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3087	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2006		3088
2007	Queries can fail, so check the return code. Or don't, as queries will become	3089	Queries can fail, so check the return code. Or don't, as queries will
2008	reliable at some point in the future.	3090	become reliable at some point in the future.
2009		3091
2010	=cut	3092	=cut
2011		3093
2012	sub cf::client::query {	3094	sub cf::client::query {
2013	my ($self, $flags, $text, $cb) = @_;	3095	my ($self, $flags, $text, $cb) = @_;
…		…
2021	utf8::encode $text;	3103	utf8::encode $text;
2022	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3104	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2023		3105
2024	$self->send_packet ($self->{query_queue}[0][0])	3106	$self->send_packet ($self->{query_queue}[0][0])
2025	if @{ $self->{query_queue} } == 1;	3107	if @{ $self->{query_queue} } == 1;
		3108
		3109	1
2026	}	3110	}
2027		3111
2028	cf::client->attach (	3112	cf::client->attach (
		3113	on_connect => sub {
		3114	my ($ns) = @_;
		3115
		3116	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3117	},
2029	on_reply => sub {	3118	on_reply => sub {
2030	my ($ns, $msg) = @_;	3119	my ($ns, $msg) = @_;
2031		3120
2032	# this weird shuffling is so that direct followup queries	3121	# this weird shuffling is so that direct followup queries
2033	# get handled first	3122	# get handled first
…		…
2045	} else {	3134	} else {
2046	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3135	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2047	}	3136	}
2048	}	3137	}
2049	},	3138	},
		3139	on_exticmd => sub {
		3140	my ($ns, $buf) = @_;
		3141
		3142	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3143
		3144	if (ref $msg) {
		3145	my ($type, $reply, @payload) =
		3146	"ARRAY" eq ref $msg
		3147	? @$msg
		3148	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3149
		3150	my @reply;
		3151
		3152	if (my $cb = $EXTICMD{$type}) {
		3153	@reply = $cb->($ns, @payload);
		3154	}
		3155
		3156	$ns->ext_reply ($reply, @reply)
		3157	if $reply;
		3158
		3159	} else {
		3160	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3161	}
		3162
		3163	cf::override;
		3164	},
2050	);	3165	);
2051		3166
2052	=item $client->async (\&cb)	3167	=item $client->async (\&cb)
2053		3168
2054	Create a new coroutine, running the specified callback. The coroutine will	3169	Create a new coroutine, running the specified callback. The coroutine will
…		…
2070		3185
2071	$coro	3186	$coro
2072	}	3187	}
2073		3188
2074	cf::client->attach (	3189	cf::client->attach (
2075	on_destroy => sub {	3190	on_client_destroy => sub {
2076	my ($ns) = @_;	3191	my ($ns) = @_;
2077		3192
2078	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3193	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2079	},	3194	},
2080	);	3195	);
…		…
2095	our $safe = new Safe "safe";	3210	our $safe = new Safe "safe";
2096	our $safe_hole = new Safe::Hole;	3211	our $safe_hole = new Safe::Hole;
2097		3212
2098	$SIG{FPE} = 'IGNORE';	3213	$SIG{FPE} = 'IGNORE';
2099		3214
2100	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3215	$safe->permit_only (Opcode::opset qw(
		3216	:base_core :base_mem :base_orig :base_math :base_loop
		3217	grepstart grepwhile mapstart mapwhile
		3218	sort time
		3219	));
2101		3220
2102	# here we export the classes and methods available to script code	3221	# here we export the classes and methods available to script code
2103		3222
2104	=pod	3223	=pod
2105		3224
2106	The following fucntions and emthods are available within a safe environment:	3225	The following functions and methods are available within a safe environment:
2107		3226
2108	cf::object contr pay_amount pay_player map	3227	cf::object
		3228	contr pay_amount pay_player map x y force_find force_add destroy
		3229	insert remove name archname title slaying race decrease split
		3230	value
		3231
2109	cf::object::player player	3232	cf::object::player
2110	cf::player peaceful	3233	player
2111	cf::map trigger	3234
		3235	cf::player
		3236	peaceful
		3237
		3238	cf::map
		3239	trigger
2112		3240
2113	=cut	3241	=cut
2114		3242
2115	for (	3243	for (
2116	["cf::object" => qw(contr pay_amount pay_player map)],	3244	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3245	insert remove inv nrof name archname title slaying race
		3246	decrease split destroy change_exp value msg lore send_msg)],
2117	["cf::object::player" => qw(player)],	3247	["cf::object::player" => qw(player)],
2118	["cf::player" => qw(peaceful)],	3248	["cf::player" => qw(peaceful send_msg)],
2119	["cf::map" => qw(trigger)],	3249	["cf::map" => qw(trigger)],
2120	) {	3250	) {
2121	no strict 'refs';	3251	no strict 'refs';
2122	my ($pkg, @funs) = @$_;	3252	my ($pkg, @funs) = @$_;
2123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3253	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2141		3271
2142	my $qcode = $code;	3272	my $qcode = $code;
2143	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3273	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2144	$qcode =~ s/\n/\\n/g;	3274	$qcode =~ s/\n/\\n/g;
2145		3275
		3276	%vars = (_dummy => 0) unless %vars;
		3277
		3278	my @res;
2146	local $_;	3279	local $_;
2147	local @safe::cf::_safe_eval_args = values %vars;
2148		3280
2149	my $eval =	3281	my $eval =
2150	"do {\n"	3282	"do {\n"
2151	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3283	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2152	. "#line 0 \"{$qcode}\"\n"	3284	. "#line 0 \"{$qcode}\"\n"
2153	. $code	3285	. $code
2154	. "\n}"	3286	. "\n}"
2155	;	3287	;
2156		3288
		3289	if ($CFG{safe_eval}) {
2157	sub_generation_inc;	3290	sub_generation_inc;
		3291	local @safe::cf::_safe_eval_args = values %vars;
2158	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3292	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2159	sub_generation_inc;	3293	sub_generation_inc;
		3294	} else {
		3295	local @cf::_safe_eval_args = values %vars;
		3296	@res = wantarray ? eval eval : scalar eval $eval;
		3297	}
2160		3298
2161	if ($@) {	3299	if ($@) {
2162	warn "$@";	3300	warn "$@";
2163	warn "while executing safe code '$code'\n";	3301	warn "while executing safe code '$code'\n";
2164	warn "with arguments " . (join " ", %vars) . "\n";	3302	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2183	=cut	3321	=cut
2184		3322
2185	sub register_script_function {	3323	sub register_script_function {
2186	my ($fun, $cb) = @_;	3324	my ($fun, $cb) = @_;
2187		3325
2188	no strict 'refs';	3326	$fun = "safe::$fun" if $CFG{safe_eval};
2189	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3327	*$fun = $safe_hole->wrap ($cb);
2190	}	3328	}
2191		3329
2192	=back	3330	=back
2193		3331
2194	=cut	3332	=cut
2195
2196	#############################################################################
2197
2198	=head2 EXTENSION DATABASE SUPPORT
2199
2200	Crossfire maintains a very simple database for extension use. It can
2201	currently store anything that can be serialised using Storable, which
2202	excludes objects.
2203
2204	The parameter C<$family> should best start with the name of the extension
2205	using it, it should be unique.
2206
2207	=over 4
2208
2209	=item $value = cf::db_get $family => $key
2210
2211	Returns a single value from the database.
2212
2213	=item cf::db_put $family => $key => $value
2214
2215	Stores the given C<$value> in the family.
2216
2217	=cut
2218
2219	our $DB;
2220
2221	sub db_init {
2222	unless ($DB) {
2223	$DB = BDB::db_create $DB_ENV;
2224
2225	cf::sync_job {
2226	eval {
2227	$DB->set_flags (BDB::CHKSUM);
2228
2229	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2230	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2231	cf::cleanup "db_open(db): $!" if $!;
2232	};
2233	cf::cleanup "db_open(db): $@" if $@;
2234	};
2235
2236	my $path = cf::localdir . "/database.pst";
2237	if (stat $path) {
2238	cf::sync_job {
2239	my $pst = Storable::retrieve $path;
2240
2241	cf::db_put (board => data => $pst->{board});
2242	cf::db_put (guildrules => data => $pst->{guildrules});
2243	cf::db_put (rent => balance => $pst->{rent}{balance});
2244	BDB::db_env_txn_checkpoint $DB_ENV;
2245
2246	unlink $path;
2247	};
2248	}
2249	}
2250	}
2251
2252	sub db_get($$) {
2253	my $key = "$_[0]/$_[1]";
2254
2255	cf::sync_job {
2256	BDB::db_get $DB, undef, $key, my $data;
2257
2258	$! ? ()
2259	: Compress::LZF::sthaw $data
2260	}
2261	}
2262
2263	sub db_put($$$) {
2264	BDB::dbreq_pri 4;
2265	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2266	}
2267		3333
2268	#############################################################################	3334	#############################################################################
2269	# the server's init and main functions	3335	# the server's init and main functions
2270		3336
2271	sub init_resources {	3337	sub load_facedata($) {
2272	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3338	my ($path) = @_;
		3339
		3340	# HACK to clear player env face cache, we need some signal framework
		3341	# for this (global event?)
		3342	%ext::player_env::MUSIC_FACE_CACHE = ();
		3343
		3344	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3345
		3346	warn "loading facedata from $path\n";
		3347
		3348	my $facedata;
		3349	0 < aio_load $path, $facedata
		3350	or die "$path: $!";
		3351
		3352	$facedata = Coro::Storable::thaw $facedata;
		3353
		3354	$facedata->{version} == 2
		3355	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3356
		3357	# patch in the exptable
		3358	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3359	$facedata->{resource}{"res/exp_table"} = {
		3360	type => FT_RSRC,
		3361	data => $exp_table,
		3362	hash => (Digest::MD5::md5 $exp_table),
		3363	};
		3364	cf::cede_to_tick;
		3365
		3366	{
		3367	my $faces = $facedata->{faceinfo};
		3368
		3369	while (my ($face, $info) = each %$faces) {
		3370	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3371
		3372	cf::face::set_visibility $idx, $info->{visibility};
		3373	cf::face::set_magicmap $idx, $info->{magicmap};
		3374	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3375	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3376
		3377	cf::cede_to_tick;
		3378	}
		3379
		3380	while (my ($face, $info) = each %$faces) {
		3381	next unless $info->{smooth};
		3382
		3383	my $idx = cf::face::find $face
		3384	or next;
		3385
		3386	if (my $smooth = cf::face::find $info->{smooth}) {
		3387	cf::face::set_smooth $idx, $smooth;
		3388	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3389	} else {
		3390	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3391	}
		3392
		3393	cf::cede_to_tick;
		3394	}
		3395	}
		3396
		3397	{
		3398	my $anims = $facedata->{animinfo};
		3399
		3400	while (my ($anim, $info) = each %$anims) {
		3401	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3402	cf::cede_to_tick;
		3403	}
		3404
		3405	cf::anim::invalidate_all; # d'oh
		3406	}
		3407
		3408	{
		3409	my $res = $facedata->{resource};
		3410
		3411	while (my ($name, $info) = each %$res) {
		3412	if (defined $info->{type}) {
		3413	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3414
		3415	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3416	cf::face::set_type $idx, $info->{type};
		3417	} else {
		3418	$RESOURCE{$name} = $info;
		3419	}
		3420
		3421	cf::cede_to_tick;
		3422	}
		3423	}
		3424
		3425	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3426
		3427	1
		3428	}
		3429
		3430	cf::global->attach (on_resource_update => sub {
		3431	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3432	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3433
		3434	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3435	my $sound = $soundconf->{compat}[$_]
		3436	or next;
		3437
		3438	my $face = cf::face::find "sound/$sound->[1]";
		3439	cf::sound::set $sound->[0] => $face;
		3440	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3441	}
		3442
		3443	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3444	my $face = cf::face::find "sound/$v";
		3445	cf::sound::set $k => $face;
		3446	}
		3447	}
		3448	});
		3449
		3450	register_exticmd fx_want => sub {
		3451	my ($ns, $want) = @_;
		3452
		3453	while (my ($k, $v) = each %$want) {
		3454	$ns->fx_want ($k, $v);
		3455	}
		3456	};
		3457
		3458	sub load_resource_file($) {
		3459	my $guard = lock_acquire "load_resource_file";
		3460
		3461	my $status = load_resource_file_ $_[0];
		3462	get_slot 0.1, 100;
		3463	cf::arch::commit_load;
		3464
		3465	$status
		3466	}
		3467
		3468	sub reload_regions {
		3469	# HACK to clear player env face cache, we need some signal framework
		3470	# for this (global event?)
		3471	%ext::player_env::MUSIC_FACE_CACHE = ();
		3472
		3473	load_resource_file "$MAPDIR/regions"
2273	or die "unable to load regions file\n";#d#	3474	or die "unable to load regions file\n";
2274	}
2275		3475
2276	sub cfg_load {	3476	for (cf::region::list) {
		3477	$_->{match} = qr/$_->{match}/
		3478	if exists $_->{match};
		3479	}
		3480	}
		3481
		3482	sub reload_facedata {
		3483	load_facedata "$DATADIR/facedata"
		3484	or die "unable to load facedata\n";
		3485	}
		3486
		3487	sub reload_archetypes {
		3488	load_resource_file "$DATADIR/archetypes"
		3489	or die "unable to load archetypes\n";
		3490	}
		3491
		3492	sub reload_treasures {
		3493	load_resource_file "$DATADIR/treasures"
		3494	or die "unable to load treasurelists\n";
		3495	}
		3496
		3497	sub reload_resources {
		3498	warn "reloading resource files...\n";
		3499
		3500	reload_facedata;
		3501	reload_archetypes;
		3502	reload_regions;
		3503	reload_treasures;
		3504
		3505	warn "finished reloading resource files\n";
		3506	}
		3507
		3508	sub reload_config {
		3509	warn "reloading config file...\n";
		3510
2277	open my $fh, "<:utf8", cf::confdir . "/config"	3511	open my $fh, "<:utf8", "$CONFDIR/config"
2278	or return;	3512	or return;
2279		3513
2280	local $/;	3514	local $/;
2281	*CFG = YAML::Syck::Load <$fh>;	3515	*CFG = YAML::XS::Load scalar <$fh>;
2282		3516
2283	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3517	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2284		3518
2285	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3519	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2286	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3520	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2290	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3524	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2291	and die "WARNING: m(un)lockall failed: $!\n";	3525	and die "WARNING: m(un)lockall failed: $!\n";
2292	};	3526	};
2293	warn $@ if $@;	3527	warn $@ if $@;
2294	}	3528	}
2295	}
2296		3529
2297	sub init {	3530	warn "finished reloading resource files\n";
2298	init_resources;	3531	}
		3532
		3533	sub pidfile() {
		3534	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3535	or die "$PIDFILE: $!";
		3536	flock $fh, &Fcntl::LOCK_EX
		3537	or die "$PIDFILE: flock: $!";
		3538	$fh
		3539	}
		3540
		3541	# make sure only one server instance is running at any one time
		3542	sub atomic {
		3543	my $fh = pidfile;
		3544
		3545	my $pid = <$fh>;
		3546	kill 9, $pid if $pid > 0;
		3547
		3548	seek $fh, 0, 0;
		3549	print $fh $$;
		3550	}
		3551
		3552	sub main_loop {
		3553	warn "EV::loop starting\n";
		3554	if (1) {
		3555	EV::loop;
		3556	}
		3557	warn "EV::loop returned\n";
		3558	goto &main_loop unless $REALLY_UNLOOP;
2299	}	3559	}
2300		3560
2301	sub main {	3561	sub main {
		3562	cf::init_globals; # initialise logging
		3563
		3564	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3565	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3566	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3567	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3568
		3569	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3570
2302	# we must not ever block the main coroutine	3571	# we must not ever block the main coroutine
2303	local $Coro::idle = sub {	3572	local $Coro::idle = sub {
2304	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3573	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2305	(async {	3574	(async {
2306	Event::one_event;	3575	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3576	EV::loop EV::LOOP_ONESHOT;
2307	})->prio (Coro::PRIO_MAX);	3577	})->prio (Coro::PRIO_MAX);
2308	};	3578	};
2309		3579
2310	cfg_load;	3580	evthread_start IO::AIO::poll_fileno;
		3581
		3582	cf::sync_job {
		3583	cf::init_experience;
		3584	cf::init_anim;
		3585	cf::init_attackmess;
		3586	cf::init_dynamic;
		3587
		3588	cf::load_settings;
		3589	cf::load_materials;
		3590
		3591	reload_resources;
		3592	reload_config;
2311	db_init;	3593	db_init;
		3594
		3595	cf::init_uuid;
		3596	cf::init_signals;
		3597	cf::init_skills;
		3598
		3599	cf::init_beforeplay;
		3600
		3601	atomic;
		3602
2312	load_extensions;	3603	load_extensions;
2313		3604
2314	$TICK_WATCHER->start;	3605	utime time, time, $RUNTIMEFILE;
2315	Event::loop;	3606
		3607	# no (long-running) fork's whatsoever before this point(!)
		3608	use POSIX ();
		3609	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3610
		3611	(pop @POST_INIT)->(0) while @POST_INIT;
		3612	};
		3613
		3614	cf::object::thawer::errors_are_fatal 0;
		3615	warn "parse errors in files are no longer fatal from this point on.\n";
		3616
		3617	main_loop;
2316	}	3618	}
2317		3619
2318	#############################################################################	3620	#############################################################################
2319	# initialisation and cleanup	3621	# initialisation and cleanup
2320		3622
2321	# install some emergency cleanup handlers	3623	# install some emergency cleanup handlers
2322	BEGIN {	3624	BEGIN {
		3625	our %SIGWATCHER = ();
2323	for my $signal (qw(INT HUP TERM)) {	3626	for my $signal (qw(INT HUP TERM)) {
2324	Event->signal (	3627	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2325	reentrant => 0,
2326	data => WF_AUTOCANCEL,
2327	signal => $signal,
2328	prio => 0,
2329	cb => sub {
2330	cf::cleanup "SIG$signal";	3628	cf::cleanup "SIG$signal";
2331	},
2332	);	3629	};
		3630	}
		3631	}
		3632
		3633	sub write_runtime_sync {
		3634	my $t0 = AE::time;
		3635
		3636	# first touch the runtime file to show we are still running:
		3637	# the fsync below can take a very very long time.
		3638
		3639	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3640
		3641	my $guard = cf::lock_acquire "write_runtime";
		3642
		3643	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3644	or return;
		3645
		3646	my $value = $cf::RUNTIME + 90 + 10;
		3647	# 10 is the runtime save interval, for a monotonic clock
		3648	# 60 allows for the watchdog to kill the server.
		3649
		3650	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3651	and return;
		3652
		3653	# always fsync - this file is important
		3654	aio_fsync $fh
		3655	and return;
		3656
		3657	# touch it again to show we are up-to-date
		3658	aio_utime $fh, undef, undef;
		3659
		3660	close $fh
		3661	or return;
		3662
		3663	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3664	and return;
		3665
		3666	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3667
2333	}	3668	1
		3669	}
		3670
		3671	our $uuid_lock;
		3672	our $uuid_skip;
		3673
		3674	sub write_uuid_sync($) {
		3675	$uuid_skip ||= $_[0];
		3676
		3677	return if $uuid_lock;
		3678	local $uuid_lock = 1;
		3679
		3680	my $uuid = "$LOCALDIR/uuid";
		3681
		3682	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3683	or return;
		3684
		3685	my $value = uuid_seq uuid_cur;
		3686
		3687	unless ($value) {
		3688	warn "cowardly refusing to write zero uuid value!\n";
		3689	return;
		3690	}
		3691
		3692	my $value = uuid_str $value + $uuid_skip;
		3693	$uuid_skip = 0;
		3694
		3695	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3696	and return;
		3697
		3698	# always fsync - this file is important
		3699	aio_fsync $fh
		3700	and return;
		3701
		3702	close $fh
		3703	or return;
		3704
		3705	aio_rename "$uuid~", $uuid
		3706	and return;
		3707
		3708	warn "uuid file written ($value).\n";
		3709
		3710	1
		3711
		3712	}
		3713
		3714	sub write_uuid($$) {
		3715	my ($skip, $sync) = @_;
		3716
		3717	$sync ? write_uuid_sync $skip
		3718	: async { write_uuid_sync $skip };
2334	}	3719	}
2335		3720
2336	sub emergency_save() {	3721	sub emergency_save() {
2337	my $freeze_guard = cf::freeze_mainloop;	3722	my $freeze_guard = cf::freeze_mainloop;
2338		3723
2339	warn "enter emergency perl save\n";	3724	warn "emergency_perl_save: enter\n";
2340		3725
2341	cf::sync_job {	3726	cf::sync_job {
		3727	# this is a trade-off: we want to be very quick here, so
		3728	# save all maps without fsync, and later call a global sync
		3729	# (which in turn might be very very slow)
		3730	local $USE_FSYNC = 0;
		3731
2342	# use a peculiar iteration method to avoid tripping on perl	3732	# use a peculiar iteration method to avoid tripping on perl
2343	# refcount bugs in for. also avoids problems with players	3733	# refcount bugs in for. also avoids problems with players
2344	# and maps saved/destroyed asynchronously.	3734	# and maps saved/destroyed asynchronously.
2345	warn "begin emergency player save\n";	3735	warn "emergency_perl_save: begin player save\n";
2346	for my $login (keys %cf::PLAYER) {	3736	for my $login (keys %cf::PLAYER) {
2347	my $pl = $cf::PLAYER{$login} or next;	3737	my $pl = $cf::PLAYER{$login} or next;
2348	$pl->valid or next;	3738	$pl->valid or next;
		3739	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2349	$pl->save;	3740	$pl->save;
2350	}	3741	}
2351	warn "end emergency player save\n";	3742	warn "emergency_perl_save: end player save\n";
2352		3743
2353	warn "begin emergency map save\n";	3744	warn "emergency_perl_save: begin map save\n";
2354	for my $path (keys %cf::MAP) {	3745	for my $path (keys %cf::MAP) {
2355	my $map = $cf::MAP{$path} or next;	3746	my $map = $cf::MAP{$path} or next;
2356	$map->valid or next;	3747	$map->valid or next;
2357	$map->save;	3748	$map->save;
2358	}	3749	}
2359	warn "end emergency map save\n";	3750	warn "emergency_perl_save: end map save\n";
2360		3751
2361	warn "begin emergency database checkpoint\n";	3752	warn "emergency_perl_save: begin database checkpoint\n";
2362	BDB::db_env_txn_checkpoint $DB_ENV;	3753	BDB::db_env_txn_checkpoint $DB_ENV;
2363	warn "end emergency database checkpoint\n";	3754	warn "emergency_perl_save: end database checkpoint\n";
		3755
		3756	warn "emergency_perl_save: begin write uuid\n";
		3757	write_uuid_sync 1;
		3758	warn "emergency_perl_save: end write uuid\n";
2364	};	3759	};
2365		3760
		3761	warn "emergency_perl_save: starting sync()\n";
		3762	IO::AIO::aio_sync sub {
		3763	warn "emergency_perl_save: finished sync()\n";
		3764	};
		3765
2366	warn "leave emergency perl save\n";	3766	warn "emergency_perl_save: leave\n";
2367	}	3767	}
2368		3768
2369	sub post_cleanup {	3769	sub post_cleanup {
2370	my ($make_core) = @_;	3770	my ($make_core) = @_;
2371		3771
2372	warn Carp::longmess "post_cleanup backtrace"	3772	warn Carp::longmess "post_cleanup backtrace"
2373	if $make_core;	3773	if $make_core;
2374	}
2375		3774
		3775	my $fh = pidfile;
		3776	unlink $PIDFILE if <$fh> == $$;
		3777	}
		3778
		3779	# a safer delete_package, copied from Symbol
		3780	sub clear_package($) {
		3781	my $pkg = shift;
		3782
		3783	# expand to full symbol table name if needed
		3784	unless ($pkg =~ /^main::.*::$/) {
		3785	$pkg = "main$pkg" if $pkg =~ /^::/;
		3786	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3787	$pkg .= '::' unless $pkg =~ /::$/;
		3788	}
		3789
		3790	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3791	my $stem_symtab = *{$stem}{HASH};
		3792
		3793	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3794	or return;
		3795
		3796	# clear all symbols
		3797	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3798	for my $name (keys %$leaf_symtab) {
		3799	_gv_clear *{"$pkg$name"};
		3800	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3801	}
		3802	}
		3803
2376	sub reload() {	3804	sub do_reload_perl() {
2377	# can/must only be called in main	3805	# can/must only be called in main
2378	if ($Coro::current != $Coro::main) {	3806	if (in_main) {
2379	warn "can only reload from main coroutine";	3807	warn "can only reload from main coroutine";
2380	return;	3808	return;
2381	}	3809	}
2382		3810
		3811	return if $RELOAD++;
		3812
		3813	my $t1 = AE::time;
		3814
		3815	while ($RELOAD) {
2383	warn "reloading...";	3816	warn "reloading...";
2384		3817
2385	warn "entering sync_job";	3818	warn "entering sync_job";
2386		3819
2387	cf::sync_job {	3820	cf::sync_job {
2388	cf::write_runtime; # external watchdog should not bark	3821	cf::write_runtime_sync; # external watchdog should not bark
2389	cf::emergency_save;	3822	cf::emergency_save;
2390	cf::write_runtime; # external watchdog should not bark	3823	cf::write_runtime_sync; # external watchdog should not bark
2391		3824
2392	warn "syncing database to disk";	3825	warn "syncing database to disk";
2393	BDB::db_env_txn_checkpoint $DB_ENV;	3826	BDB::db_env_txn_checkpoint $DB_ENV;
2394		3827
2395	# if anything goes wrong in here, we should simply crash as we already saved	3828	# if anything goes wrong in here, we should simply crash as we already saved
2396		3829
2397	warn "cancelling all WF_AUTOCANCEL watchers";
2398	for (Event::all_watchers) {
2399	$_->cancel if $_->data & WF_AUTOCANCEL;
2400	}
2401
2402	warn "flushing outstanding aio requests";	3830	warn "flushing outstanding aio requests";
2403	for (;;) {
2404	BDB::flush;
2405	IO::AIO::flush;
2406	Coro::cede;
2407	last unless IO::AIO::nreqs || BDB::nreqs;	3831	while (IO::AIO::nreqs || BDB::nreqs) {
2408	warn "iterate...";	3832	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2409	}
2410
2411	warn "cancelling all extension coros";
2412	$_->cancel for values %EXT_CORO;
2413	%EXT_CORO = ();
2414
2415	warn "removing commands";
2416	%COMMAND = ();
2417
2418	warn "removing ext commands";
2419	%EXTCMD = ();
2420
2421	warn "unloading/nuking all extensions";
2422	for my $pkg (@EXTS) {
2423	warn "... unloading $pkg";
2424
2425	if (my $cb = $pkg->can ("unload")) {
2426	eval {
2427	$cb->($pkg);
2428	1
2429	} or warn "$pkg unloaded, but with errors: $@";
2430	}	3833	}
2431		3834
2432	warn "... nuking $pkg";	3835	warn "cancelling all extension coros";
2433	Symbol::delete_package $pkg;	3836	$_->cancel for values %EXT_CORO;
2434	}	3837	%EXT_CORO = ();
2435		3838
2436	warn "unloading all perl modules loaded from $LIBDIR";	3839	warn "removing commands";
2437	while (my ($k, $v) = each %INC) {	3840	%COMMAND = ();
2438	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2439		3841
		3842	warn "removing ext/exti commands";
		3843	%EXTCMD = ();
		3844	%EXTICMD = ();
		3845
		3846	warn "unloading/nuking all extensions";
		3847	for my $pkg (@EXTS) {
2440	warn "... unloading $k";	3848	warn "... unloading $pkg";
2441	delete $INC{$k};
2442		3849
2443	$k =~ s/\.pm$//;
2444	$k =~ s/\//::/g;
2445
2446	if (my $cb = $k->can ("unload_module")) {	3850	if (my $cb = $pkg->can ("unload")) {
		3851	eval {
2447	$cb->();	3852	$cb->($pkg);
		3853	1
		3854	} or warn "$pkg unloaded, but with errors: $@";
		3855	}
		3856
		3857	warn "... clearing $pkg";
		3858	clear_package $pkg;
2448	}	3859	}
2449		3860
2450	Symbol::delete_package $k;	3861	warn "unloading all perl modules loaded from $LIBDIR";
		3862	while (my ($k, $v) = each %INC) {
		3863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3864
		3865	warn "... unloading $k";
		3866	delete $INC{$k};
		3867
		3868	$k =~ s/\.pm$//;
		3869	$k =~ s/\//::/g;
		3870
		3871	if (my $cb = $k->can ("unload_module")) {
		3872	$cb->();
		3873	}
		3874
		3875	clear_package $k;
2451	}	3876	}
2452		3877
2453	warn "getting rid of safe::, as good as possible";	3878	warn "getting rid of safe::, as good as possible";
2454	Symbol::delete_package "safe::$_"	3879	clear_package "safe::$_"
2455	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3880	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2456		3881
2457	warn "unloading cf.pm \"a bit\"";	3882	warn "unloading cf.pm \"a bit\"";
2458	delete $INC{"cf.pm"};	3883	delete $INC{"cf.pm"};
		3884	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2459		3885
2460	# don't, removes xs symbols, too,	3886	# don't, removes xs symbols, too,
2461	# and global variables created in xs	3887	# and global variables created in xs
2462	#Symbol::delete_package __PACKAGE__;	3888	#clear_package __PACKAGE__;
2463		3889
2464	warn "unload completed, starting to reload now";	3890	warn "unload completed, starting to reload now";
2465		3891
2466	warn "reloading cf.pm";	3892	warn "reloading cf.pm";
2467	require cf;	3893	require cf;
2468	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3894	cf::_connect_to_perl_1;
2469		3895
2470	warn "loading config and database again";	3896	warn "loading config and database again";
2471	cf::cfg_load;	3897	cf::reload_config;
2472		3898
2473	warn "loading extensions";	3899	warn "loading extensions";
2474	cf::load_extensions;	3900	cf::load_extensions;
2475		3901
		3902	if ($REATTACH_ON_RELOAD) {
2476	warn "reattaching attachments to objects/players";	3903	warn "reattaching attachments to objects/players";
2477	_global_reattach; # objects, sockets	3904	_global_reattach; # objects, sockets
2478	warn "reattaching attachments to maps";	3905	warn "reattaching attachments to maps";
2479	reattach $_ for values %MAP;	3906	reattach $_ for values %MAP;
2480	warn "reattaching attachments to players";	3907	warn "reattaching attachments to players";
2481	reattach $_ for values %PLAYER;	3908	reattach $_ for values %PLAYER;
		3909	}
2482		3910
2483	warn "loading reloadable resources";	3911	warn "running post_init jobs";
2484	init_resources;	3912	(pop @POST_INIT)->(1) while @POST_INIT;
2485		3913
2486	warn "leaving sync_job";	3914	warn "leaving sync_job";
2487		3915
2488	1	3916	1
2489	} or do {	3917	} or do {
2490	warn $@;	3918	warn $@;
2491	warn "error while reloading, exiting.";	3919	cf::cleanup "error while reloading, exiting.";
2492	exit 1;	3920	};
		3921
		3922	warn "reloaded";
		3923	--$RELOAD;
		3924	}
		3925
		3926	$t1 = AE::time - $t1;
		3927	warn "reload completed in ${t1}s\n";
		3928	};
		3929
		3930	our $RELOAD_WATCHER; # used only during reload
		3931
		3932	sub reload_perl() {
		3933	# doing reload synchronously and two reloads happen back-to-back,
		3934	# coro crashes during coro_state_free->destroy here.
		3935
		3936	$RELOAD_WATCHER ||= cf::async {
		3937	Coro::AIO::aio_wait cache_extensions;
		3938
		3939	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3940	do_reload_perl;
		3941	undef $RELOAD_WATCHER;
		3942	};
2493	};	3943	};
2494		3944	}
2495	warn "reloaded";
2496	};
2497
2498	our $RELOAD_WATCHER; # used only during reload
2499		3945
2500	register_command "reload" => sub {	3946	register_command "reload" => sub {
2501	my ($who, $arg) = @_;	3947	my ($who, $arg) = @_;
2502		3948
2503	if ($who->flag (FLAG_WIZ)) {	3949	if ($who->flag (FLAG_WIZ)) {
2504	$who->message ("reloading server.");	3950	$who->message ("reloading server.");
2505		3951	async {
2506	# doing reload synchronously and two reloads happen back-to-back,	3952	$Coro::current->{desc} = "perl_reload";
2507	# coro crashes during coro_state_free->destroy here.
2508
2509	$RELOAD_WATCHER ||= Event->timer (
2510	reentrant => 0,
2511	after => 0,
2512	data => WF_AUTOCANCEL,
2513	cb => sub {
2514	reload;	3953	reload_perl;
2515	undef $RELOAD_WATCHER;
2516	},
2517	);	3954	};
2518	}	3955	}
2519	};	3956	};
2520		3957
2521	unshift @INC, $LIBDIR;	3958	unshift @INC, $LIBDIR;
2522		3959
2523	my $bug_warning = 0;	3960	my $bug_warning = 0;
2524		3961
2525	$TICK_WATCHER = Event->timer (	3962	our @WAIT_FOR_TICK;
2526	reentrant => 0,	3963	our @WAIT_FOR_TICK_BEGIN;
2527	parked => 1,	3964
2528	prio => 0,	3965	sub wait_for_tick {
2529	at => $NEXT_TICK || $TICK,	3966	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2530	data => WF_AUTOCANCEL,	3967
2531	cb => sub {	3968	my $signal = new Coro::Signal;
		3969	push @WAIT_FOR_TICK, $signal;
		3970	$signal->wait;
		3971	}
		3972
		3973	sub wait_for_tick_begin {
		3974	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3975
		3976	my $signal = new Coro::Signal;
		3977	push @WAIT_FOR_TICK_BEGIN, $signal;
		3978	$signal->wait;
		3979	}
		3980
		3981	sub tick {
2532	if ($Coro::current != $Coro::main) {	3982	if ($Coro::current != $Coro::main) {
2533	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3983	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2534	unless ++$bug_warning > 10;	3984	unless ++$bug_warning > 10;
2535	return;	3985	return;
2536	}	3986	}
2537		3987
2538	$NOW = Event::time;
2539
2540	cf::server_tick; # one server iteration	3988	cf::server_tick; # one server iteration
2541	$RUNTIME += $TICK;
2542	$NEXT_TICK += $TICK;
2543		3989
		3990	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		3991
2544	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3992	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2545	$NEXT_RUNTIME_WRITE = $NOW + 10;	3993	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2546	Coro::async_pool {	3994	Coro::async_pool {
		3995	$Coro::current->{desc} = "runtime saver";
2547	write_runtime	3996	write_runtime_sync
2548	or warn "ERROR: unable to write runtime file: $!";	3997	or warn "ERROR: unable to write runtime file: $!";
2549	};
2550	}	3998	};
2551
2552	$WAIT_FOR_TICK->broadcast;
2553	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2554
2555	# my $AFTER = Event::time;
2556	# warn $AFTER - $NOW;#d#
2557
2558	# if we are delayed by four ticks or more, skip them all
2559	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2560
2561	$TICK_WATCHER->at ($NEXT_TICK);
2562	$TICK_WATCHER->start;
2563	},	3999	}
2564	);	4000
		4001	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4002	$sig->send;
		4003	}
		4004	while (my $sig = shift @WAIT_FOR_TICK) {
		4005	$sig->send;
		4006	}
		4007
		4008	$LOAD = ($NOW - $TICK_START) / $TICK;
		4009	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4010
		4011	if (0) {
		4012	if ($NEXT_TICK) {
		4013	my $jitter = $TICK_START - $NEXT_TICK;
		4014	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4015	warn "jitter $JITTER\n";#d#
		4016	}
		4017	}
		4018	}
2565		4019
2566	{	4020	{
2567	BDB::max_poll_time $TICK * 0.1;	4021	# configure BDB
2568	$BDB_POLL_WATCHER = Event->io (	4022
2569	reentrant => 0,
2570	fd => BDB::poll_fileno,
2571	poll => 'r',
2572	prio => 0,
2573	data => WF_AUTOCANCEL,
2574	cb => \&BDB::poll_cb,
2575	);
2576	BDB::min_parallel 8;	4023	BDB::min_parallel 16;
2577		4024	BDB::max_poll_reqs $TICK * 0.1;
2578	BDB::set_sync_prepare {	4025	$AnyEvent::BDB::WATCHER->priority (1);
2579	my $status;
2580	my $current = $Coro::current;
2581	(
2582	sub {
2583	$status = $!;
2584	$current->ready; undef $current;
2585	},
2586	sub {
2587	Coro::schedule while defined $current;
2588	$! = $status;
2589	},
2590	)
2591	};
2592		4026
2593	unless ($DB_ENV) {	4027	unless ($DB_ENV) {
2594	$DB_ENV = BDB::db_env_create;	4028	$DB_ENV = BDB::db_env_create;
		4029	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4030	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4031	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4032	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4033	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2595		4034
2596	cf::sync_job {	4035	cf::sync_job {
2597	eval {	4036	eval {
2598	BDB::db_env_open	4037	BDB::db_env_open
2599	$DB_ENV,	4038	$DB_ENV,
2600	$BDB_ENV_DIR,	4039	$BDBDIR,
2601	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4040	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2602	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4041	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2603	0666;	4042	0666;
2604		4043
2605	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4044	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2606
2607	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2608	$DB_ENV->set_lk_detect;
2609	};	4045	};
2610		4046
2611	cf::cleanup "db_env_open(db): $@" if $@;	4047	cf::cleanup "db_env_open(db): $@" if $@;
2612	};	4048	};
2613	}	4049	}
		4050
		4051	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4052	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4053	};
		4054	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4055	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4056	};
		4057	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4058	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4059	};
2614	}	4060	}
2615		4061
2616	{	4062	{
		4063	# configure IO::AIO
		4064
2617	IO::AIO::min_parallel 8;	4065	IO::AIO::min_parallel 8;
2618
2619	undef $Coro::AIO::WATCHER;
2620	IO::AIO::max_poll_time $TICK * 0.1;	4066	IO::AIO::max_poll_time $TICK * 0.1;
2621	$AIO_POLL_WATCHER = Event->io (	4067	undef $AnyEvent::AIO::WATCHER;
2622	reentrant => 0,
2623	data => WF_AUTOCANCEL,
2624	fd => IO::AIO::poll_fileno,
2625	poll => 'r',
2626	prio => 6,
2627	cb => \&IO::AIO::poll_cb,
2628	);
2629	}	4068	}
		4069
		4070	my $_log_backtrace;
		4071
		4072	sub _log_backtrace {
		4073	my ($msg, @addr) = @_;
		4074
		4075	$msg =~ s/\n//;
		4076
		4077	# limit the # of concurrent backtraces
		4078	if ($_log_backtrace < 2) {
		4079	++$_log_backtrace;
		4080	my $perl_bt = Carp::longmess $msg;
		4081	async {
		4082	$Coro::current->{desc} = "abt $msg";
		4083
		4084	my @bt = fork_call {
		4085	@addr = map { sprintf "%x", $_ } @addr;
		4086	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4087	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4088	or die "addr2line: $!";
		4089
		4090	my @funcs;
		4091	my @res = <$fh>;
		4092	chomp for @res;
		4093	while (@res) {
		4094	my ($func, $line) = splice @res, 0, 2, ();
		4095	push @funcs, "[$func] $line";
		4096	}
		4097
		4098	@funcs
		4099	};
		4100
		4101	LOG llevInfo, "[ABT] $perl_bt\n";
		4102	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4103	LOG llevInfo, "[ABT] $_\n" for @bt;
		4104	--$_log_backtrace;
		4105	};
		4106	} else {
		4107	LOG llevInfo, "[ABT] $msg\n";
		4108	LOG llevInfo, "[ABT] [suppressed]\n";
		4109	}
		4110	}
		4111
		4112	# load additional modules
		4113	require "cf/$_.pm" for @EXTRA_MODULES;
		4114	cf::_connect_to_perl_2;
2630		4115
2631	END { cf::emergency_save }	4116	END { cf::emergency_save }
2632		4117
2633	1	4118	1
2634		4119

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