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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.247 by root, Tue Apr 17 18:24:30 2007 UTC vs.
Revision 1.480 by root, Thu Oct 8 05:09:43 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
9	use Event;	31	use EV;
10	use Opcode;	32	use Opcode;
11	use Safe;	33	use Safe;
12	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
13		36
		37	use Guard ();
14	use Coro 3.61 ();	38	use Coro ();
15	use Coro::State;	39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
16	use Coro::Event;	42	use Coro::AnyEvent;
17	use Coro::Timer;	43	use Coro::Timer;
18	use Coro::Signal;	44	use Coro::Signal;
19	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
20	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
21	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
22		52
		53	use JSON::XS 2.01 ();
23	use BDB ();	54	use BDB ();
24	use Data::Dumper;	55	use Data::Dumper;
25	use Digest::MD5;	56	use Digest::MD5;
26	use Fcntl;	57	use Fcntl;
27	use YAML::Syck ();	58	use YAML ();
28	use IO::AIO 2.32 ();	59	use IO::AIO ();
29	use Time::HiRes;	60	use Time::HiRes;
30	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
		63
		64	AnyEvent::detect;
31		65
32	# configure various modules to our taste	66	# configure various modules to our taste
33	#	67	#
34	$Storable::canonical = 1; # reduce rsync transfers	68	$Storable::canonical = 1; # reduce rsync transfers
35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
36	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
37		76
38	$Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
39		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
41	$YAML::Syck::ImplicitUnicode = 1;
42
43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
44		79
45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
46		81
47	our %COMMAND = ();	82	our %COMMAND = ();
48	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
49		84
50	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
54		90
55	our $RELOAD; # number of reloads so far	91	our $RELOAD; # number of reloads so far, non-zero while in reload
56	our @EVENT;	92	our @EVENT;
57	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
		95
		96	our $CONFDIR = confdir;
		97	our $DATADIR = datadir;
		98	our $LIBDIR = "$DATADIR/ext";
		99	our $PODDIR = "$DATADIR/pod";
		100	our $MAPDIR = "$DATADIR/" . mapdir;
		101	our $LOCALDIR = localdir;
		102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		105	our $RANDOMDIR = "$LOCALDIR/random";
		106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
58		111
59	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	114	our $NEXT_TICK;
64	our $NOW;
65	our $USE_FSYNC = 1; # use fsync to write maps - default off	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
66		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
67	our $BDB_POLL_WATCHER;	119	our $BDB_TRICKLE_WATCHER;
68	our $DB_ENV;	120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod mapscript);
69		123
70	our %CFG;	124	our %CFG;
71		125
72	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
73	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
74		129
75	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
76	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	132	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80		133
81	# used to convert map paths into valid unix filenames by replacing / by ∕	134	# used to convert map paths into valid unix filenames by replacing / by ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
		146
84	binmode STDOUT;	147	binmode STDOUT;
85	binmode STDERR;	148	binmode STDERR;
86		149
87	# read virtual server time, if available	150	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
89	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
90	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
91	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
92	}	155	}
93		156
94	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
95	mkdir cf::localdir . "/" . cf::playerdir;	158
96	mkdir cf::localdir . "/" . cf::tmpdir;	159	mkdir $_
97	mkdir cf::localdir . "/" . cf::uniquedir;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		161
101	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
102		163
103	sub cf::map::normalise;	164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
		173
		174	# this is decidedly evil
		175	$REFLECT{object}{flags} = [grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"}];
104		176
105	#############################################################################	177	#############################################################################
106		178
107	=head2 GLOBAL VARIABLES	179	=head2 GLOBAL VARIABLES
108		180
…		…
115	=item $cf::RUNTIME	187	=item $cf::RUNTIME
116		188
117	The time this server has run, starts at 0 and is increased by $cf::TICK on	189	The time this server has run, starts at 0 and is increased by $cf::TICK on
118	every server tick.	190	every server tick.
119		191
120	=item $cf::LIBDIR	192	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		193	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		194	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
121		195
122	The perl library directory, where extensions and cf-specific modules can	196	Various directories - "/etc", read-only install directory, perl-library
123	be found. It will be added to C<@INC> automatically.	197	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		198	unique-items directory, player file directory, random maps directory and
		199	database environment.
124		200
125	=item $cf::NOW	201	=item $cf::NOW
126		202
127	The time of the last (current) server tick.	203	The time of the last (current) server tick.
128		204
129	=item $cf::TICK	205	=item $cf::TICK
130		206
131	The interval between server ticks, in seconds.	207	The interval between server ticks, in seconds.
132		208
		209	=item $cf::LOADAVG
		210
		211	The current CPU load on the server (alpha-smoothed), as a value between 0
		212	(none) and 1 (overloaded), indicating how much time is spent on processing
		213	objects per tick. Healthy values are < 0.5.
		214
		215	=item $cf::LOAD
		216
		217	The raw value load value from the last tick.
		218
133	=item %cf::CFG	219	=item %cf::CFG
134		220
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	221	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
136	from wherever your confdir points to.	222	from wherever your confdir points to.
137		223
138	=item cf::wait_for_tick, cf::wait_for_tick_begin	224	=item cf::wait_for_tick, cf::wait_for_tick_begin
139		225
140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	226	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
141	returns directly I<after> the tick processing (and consequently, can only wake one process	227	returns directly I<after> the tick processing (and consequently, can only wake one process
142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	228	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
143		229
		230	=item @cf::INVOKE_RESULTS
		231
		232	This array contains the results of the last C<invoke ()> call. When
		233	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		234	that call.
		235
		236	=item %cf::REFLECT
		237
		238	Contains, for each (C++) class name, a hash reference with information
		239	about object members (methods, scalars, arrays and flags) and other
		240	metadata, which is useful for introspection.
		241
144	=back	242	=back
145		243
146	=cut	244	=cut
147		245
148	BEGIN {	246	$Coro::State::WARNHOOK = sub {
149	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	247	my $msg = join "", @_;
151	utf8::encode $msg;
152		248
153	$msg .= "\n"	249	$msg .= "\n"
154	unless $msg =~ /\n$/;	250	unless $msg =~ /\n$/;
155		251
		252	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		253
156	LOG llevError, $msg;	254	LOG llevError, $msg;
157	};	255	};
158	}	256
		257	$Coro::State::DIEHOOK = sub {
		258	return unless $^S eq 0; # "eq", not "=="
		259
		260	warn Carp::longmess $_[0];
		261
		262	if ($Coro::current == $Coro::main) {#d#
		263	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		264	return;#d#
		265	}#d#
		266
		267	# kill coroutine otherwise
		268	Coro::terminate
		269	};
159		270
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	271	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	272	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	273	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	274	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	275	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		276	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
165	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	277	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
166		278
167	# we bless all objects into (empty) derived classes to force a method lookup	279	# we bless all objects into (empty) derived classes to force a method lookup
168	# within the Safe compartment.	280	# within the Safe compartment.
169	for my $pkg (qw(	281	for my $pkg (qw(
170	cf::global cf::attachable	282	cf::global cf::attachable
171	cf::object cf::object::player	283	cf::object cf::object::player
172	cf::client cf::player	284	cf::client cf::player
173	cf::arch cf::living	285	cf::arch cf::living
		286	cf::map cf::mapspace
174	cf::map cf::party cf::region	287	cf::party cf::region
175	)) {	288	)) {
176	no strict 'refs';
177	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	289	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
178	}	290	}
179		291
180	$Event::DIED = sub {	292	$EV::DIED = sub {
181	warn "error in event callback: @_";	293	warn "error in event callback: @_";
182	};	294	};
		295
		296	#############################################################################
183		297
184	=head2 UTILITY FUNCTIONS	298	=head2 UTILITY FUNCTIONS
185		299
186	=over 4	300	=over 4
187		301
…		…
206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	320	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
207	$d	321	$d
208	} || "[unable to dump $_[0]: '$@']";	322	} || "[unable to dump $_[0]: '$@']";
209	}	323	}
210		324
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
212
213	=item $ref = cf::from_json $json	325	=item $ref = cf::decode_json $json
214		326
215	Converts a JSON string into the corresponding perl data structure.	327	Converts a JSON string into the corresponding perl data structure.
216		328
217	=item $json = cf::to_json $ref	329	=item $json = cf::encode_json $ref
218		330
219	Converts a perl data structure into its JSON representation.	331	Converts a perl data structure into its JSON representation.
220		332
		333	=cut
		334
		335	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		336
		337	sub encode_json($) { $json_coder->encode ($_[0]) }
		338	sub decode_json($) { $json_coder->decode ($_[0]) }
		339
		340	=item cf::post_init { BLOCK }
		341
		342	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		343	but I<before> the server starts ticking again.
		344
		345	The cdoeblock will have a single boolean argument to indicate whether this
		346	is a reload or not.
		347
		348	=cut
		349
		350	sub post_init(&) {
		351	push @POST_INIT, shift;
		352	}
		353
221	=item cf::lock_wait $string	354	=item cf::lock_wait $string
222		355
223	Wait until the given lock is available. See cf::lock_acquire.	356	Wait until the given lock is available. See cf::lock_acquire.
224		357
225	=item my $lock = cf::lock_acquire $string	358	=item my $lock = cf::lock_acquire $string
226		359
227	Wait until the given lock is available and then acquires it and returns	360	Wait until the given lock is available and then acquires it and returns
228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	361	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
229	for example when the coroutine gets canceled), the lock is automatically	362	for example when the coroutine gets canceled), the lock is automatically
230	returned.	363	returned.
231		364
		365	Locks are *not* recursive, locking from the same coro twice results in a
		366	deadlocked coro.
		367
232	Lock names should begin with a unique identifier (for example, cf::map::find	368	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	369	uses map_find and cf::map::load uses map_load).
234		370
235	=cut	371	=item $locked = cf::lock_active $string
236		372
237	our %LOCK;	373	Return true if the lock is currently active, i.e. somebody has locked it.
		374
		375	=cut
		376
		377	our $LOCKS = new Coro::SemaphoreSet;
238		378
239	sub lock_wait($) {	379	sub lock_wait($) {
240	my ($key) = @_;	380	$LOCKS->wait ($_[0]);
241
242	# wait for lock, if any
243	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;
246	}
247	}	381	}
248		382
249	sub lock_acquire($) {	383	sub lock_acquire($) {
250	my ($key) = @_;	384	$LOCKS->guard ($_[0])
		385	}
251		386
252	# wait, to be sure we are not locked	387	sub lock_active($) {
253	lock_wait $key;	388	$LOCKS->count ($_[0]) < 1
254
255	$LOCK{$key} = [];
256
257	Coro::guard {
258	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };
260	}
261	}	389	}
262		390
263	sub freeze_mainloop {	391	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	392	tick_inhibit_inc;
265		393
266	my $guard = Coro::guard {	394	&Guard::guard (\&tick_inhibit_dec);
267	$TICK_WATCHER->start;	395	}
		396
		397	=item cf::periodic $interval, $cb
		398
		399	Like EV::periodic, but randomly selects a starting point so that the actions
		400	get spread over timer.
		401
		402	=cut
		403
		404	sub periodic($$) {
		405	my ($interval, $cb) = @_;
		406
		407	my $start = rand List::Util::min 180, $interval;
		408
		409	EV::periodic $start, $interval, 0, $cb
		410	}
		411
		412	=item cf::get_slot $time[, $priority[, $name]]
		413
		414	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		415	This call blocks and returns only when you have at least C<$time> seconds
		416	of cpu time till the next tick. The slot is only valid till the next cede.
		417
		418	The optional C<$name> can be used to identify the job to run. It might be
		419	used for statistical purposes and should identify the same time-class.
		420
		421	Useful for short background jobs.
		422
		423	=cut
		424
		425	our @SLOT_QUEUE;
		426	our $SLOT_QUEUE;
		427
		428	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		429	$SLOT_QUEUE = Coro::async {
		430	$Coro::current->desc ("timeslot manager");
		431
		432	my $signal = new Coro::Signal;
		433
		434	while () {
		435	next_job:
		436	my $avail = cf::till_tick;
		437	if ($avail > 0.01) {
		438	for (0 .. $#SLOT_QUEUE) {
		439	if ($SLOT_QUEUE[$_][0] < $avail) {
		440	my $job = splice @SLOT_QUEUE, $_, 1, ();
		441	$job->[2]->send;
		442	Coro::cede;
		443	goto next_job;
		444	}
		445	}
		446	}
		447
		448	if (@SLOT_QUEUE) {
		449	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		450	push @cf::WAIT_FOR_TICK, $signal;
		451	$signal->wait;
		452	} else {
		453	Coro::schedule;
		454	}
268	};	455	}
269	$TICK_WATCHER->stop;	456	};
270	$guard	457
		458	sub get_slot($;$$) {
		459	return if tick_inhibit || $Coro::current == $Coro::main;
		460
		461	my ($time, $pri, $name) = @_;
		462
		463	$time = $TICK * .6 if $time > $TICK * .6;
		464	my $sig = new Coro::Signal;
		465
		466	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		467	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		468	$SLOT_QUEUE->ready;
		469	$sig->wait;
271	}	470	}
272		471
273	=item cf::async { BLOCK }	472	=item cf::async { BLOCK }
274		473
275	Currently the same as Coro::async_pool, meaning you cannot use	474	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		479
281	BEGIN { *async = \&Coro::async_pool }	480	BEGIN { *async = \&Coro::async_pool }
282		481
283	=item cf::sync_job { BLOCK }	482	=item cf::sync_job { BLOCK }
284		483
285	The design of crossfire+ requires that the main coro ($Coro::main) is	484	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	485	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	486	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		487	acceptable.
288		488
289	If it must be done, put the blocking parts into C<sync_job>. This will run	489	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	490	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	491	server will be frozen during this time, so the block should either finish
292	fast or be very important.	492	fast or be very important.
…		…
295		495
296	sub sync_job(&) {	496	sub sync_job(&) {
297	my ($job) = @_;	497	my ($job) = @_;
298		498
299	if ($Coro::current == $Coro::main) {	499	if ($Coro::current == $Coro::main) {
		500	my $time = EV::time;
		501
300	# this is the main coro, too bad, we have to block	502	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	503	# till the operation succeeds, freezing the server :/
302		504
303	# TODO: use suspend/resume instead	505	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	506
305	my $freeze_guard = freeze_mainloop;	507	my $freeze_guard = freeze_mainloop;
306		508
307	my $busy = 1;	509	my $busy = 1;
308	my @res;	510	my @res;
309		511
310	(async {	512	(async {
		513	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	514	@res = eval { $job->() };
312	warn $@ if $@;	515	warn $@ if $@;
313	undef $busy;	516	undef $busy;
314	})->prio (Coro::PRIO_MAX);	517	})->prio (Coro::PRIO_MAX);
315		518
316	while ($busy) {	519	while ($busy) {
317	Coro::cede or Event::one_event;	520	if (Coro::nready) {
		521	Coro::cede_notself;
		522	} else {
		523	EV::loop EV::LOOP_ONESHOT;
318	}	524	}
		525	}
		526
		527	my $time = EV::time - $time;
		528
		529	$TICK_START += $time; # do not account sync jobs to server load
319		530
320	wantarray ? @res : $res[0]	531	wantarray ? @res : $res[0]
321	} else {	532	} else {
322	# we are in another coroutine, how wonderful, everything just works	533	# we are in another coroutine, how wonderful, everything just works
323		534
…		…
343	$EXT_CORO{$coro+0} = $coro;	554	$EXT_CORO{$coro+0} = $coro;
344		555
345	$coro	556	$coro
346	}	557	}
347		558
348	sub write_runtime {	559	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		560
351	my $runtime = cf::localdir . "/runtime";	561	Executes the given code block with the given arguments in a seperate
		562	process, returning the results. Everything must be serialisable with
		563	Coro::Storable. May, of course, block. Note that the executed sub may
		564	never block itself or use any form of event handling.
352		565
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	566	=cut
354	or return;
355		567
356	my $value = $cf::RUNTIME + 90 + 10;	568	sub fork_call(&@) {
357	# 10 is the runtime save interval, for a monotonic clock	569	my ($cb, @args) = @_;
358	# 60 allows for the watchdog to kill the server.
359		570
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	571	# we seemingly have to make a local copy of the whole thing,
361	and return;	572	# otherwise perl prematurely frees the stuff :/
		573	# TODO: investigate and fix (likely this will be rather laborious)
362		574
363	# always fsync - this file is important	575	my @res = Coro::Util::fork_eval {
364	aio_fsync $fh	576	reset_signals;
365	and return;	577	&$cb
		578	}, @args;
366		579
367	close $fh	580	wantarray ? @res : $res[-1]
368	or return;	581	}
369		582
370	aio_rename "$runtime~", $runtime	583	=item $coin = coin_from_name $name
371	and return;
372		584
		585	=cut
		586
		587	our %coin_alias = (
		588	"silver" => "silvercoin",
		589	"silvercoin" => "silvercoin",
		590	"silvercoins" => "silvercoin",
		591	"gold" => "goldcoin",
		592	"goldcoin" => "goldcoin",
		593	"goldcoins" => "goldcoin",
		594	"platinum" => "platinacoin",
		595	"platinumcoin" => "platinacoin",
		596	"platinumcoins" => "platinacoin",
		597	"platina" => "platinacoin",
		598	"platinacoin" => "platinacoin",
		599	"platinacoins" => "platinacoin",
		600	"royalty" => "royalty",
		601	"royalties" => "royalty",
		602	);
		603
		604	sub coin_from_name($) {
		605	$coin_alias{$_[0]}
		606	? cf::arch::find $coin_alias{$_[0]}
		607	: undef
		608	}
		609
		610	=item $value = cf::db_get $family => $key
		611
		612	Returns a single value from the environment database.
		613
		614	=item cf::db_put $family => $key => $value
		615
		616	Stores the given C<$value> in the family. It can currently store binary
		617	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		618
		619	=item $db = cf::db_table "name"
		620
		621	Create and/or open a new database table. The string must not be "db" and must be unique
		622	within each server.
		623
		624	=cut
		625
		626	sub db_table($) {
		627	my ($name) = @_;
		628	my $db = BDB::db_create $DB_ENV;
		629
		630	eval {
		631	$db->set_flags (BDB::CHKSUM);
		632
		633	utf8::encode $name;
		634	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		635	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		636	cf::cleanup "db_open(db): $!" if $!;
		637	};
		638	cf::cleanup "db_open(db): $@" if $@;
		639
		640	$db
		641	}
		642
		643	our $DB;
		644
		645	sub db_init {
		646	cf::sync_job {
		647	$DB ||= db_table "db";
		648	};
		649	}
		650
		651	sub db_get($$) {
		652	my $key = "$_[0]/$_[1]";
		653
		654	cf::sync_job {
		655	BDB::db_get $DB, undef, $key, my $data;
		656
		657	$! ? ()
		658	: $data
373	1	659	}
		660	}
		661
		662	sub db_put($$$) {
		663	BDB::dbreq_pri 4;
		664	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		665	}
		666
		667	=item cf::cache $id => [$paths...], $processversion => $process
		668
		669	Generic caching function that returns the value of the resource $id,
		670	caching and regenerating as required.
		671
		672	This function can block.
		673
		674	=cut
		675
		676	sub cache {
		677	my ($id, $src, $processversion, $process) = @_;
		678
		679	my $meta =
		680	join "\x00",
		681	$processversion,
		682	map {
		683	aio_stat $_
		684	and Carp::croak "$_: $!";
		685
		686	($_, (stat _)[7,9])
		687	} @$src;
		688
		689	my $dbmeta = db_get cache => "$id/meta";
		690	if ($dbmeta ne $meta) {
		691	# changed, we may need to process
		692
		693	my @data;
		694	my $md5;
		695
		696	for (0 .. $#$src) {
		697	0 <= aio_load $src->[$_], $data[$_]
		698	or Carp::croak "$src->[$_]: $!";
		699	}
		700
		701	# if processing is expensive, check
		702	# checksum first
		703	if (1) {
		704	$md5 =
		705	join "\x00",
		706	$processversion,
		707	map {
		708	cf::cede_to_tick;
		709	($src->[$_], Digest::MD5::md5_hex $data[$_])
		710	} 0.. $#$src;
		711
		712
		713	my $dbmd5 = db_get cache => "$id/md5";
		714	if ($dbmd5 eq $md5) {
		715	db_put cache => "$id/meta", $meta;
		716
		717	return db_get cache => "$id/data";
		718	}
		719	}
		720
		721	my $t1 = Time::HiRes::time;
		722	my $data = $process->(\@data);
		723	my $t2 = Time::HiRes::time;
		724
		725	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		726
		727	db_put cache => "$id/data", $data;
		728	db_put cache => "$id/md5" , $md5;
		729	db_put cache => "$id/meta", $meta;
		730
		731	return $data;
		732	}
		733
		734	db_get cache => "$id/data"
374	}	735	}
375		736
376	=item cf::datalog type => key => value, ...	737	=item cf::datalog type => key => value, ...
377		738
378	Log a datalog packet of the given type with the given key-value pairs.	739	Log a datalog packet of the given type with the given key-value pairs.
…		…
390		751
391	#############################################################################	752	#############################################################################
392		753
393	=head2 ATTACHABLE OBJECTS	754	=head2 ATTACHABLE OBJECTS
394		755
395	Many objects in crossfire are so-called attachable objects. That means you can	756	Many objects in deliantra are so-called attachable objects. That means you can
396	attach callbacks/event handlers (a collection of which is called an "attachment")	757	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	758	to it. All such attachable objects support the following methods.
398		759
399	In the following description, CLASS can be any of C<global>, C<object>	760	In the following description, CLASS can be any of C<global>, C<object>
400	C<player>, C<client> or C<map> (i.e. the attachable objects in	761	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	762	Deliantra).
402		763
403	=over 4	764	=over 4
404		765
405	=item $attachable->attach ($attachment, key => $value...)	766	=item $attachable->attach ($attachment, key => $value...)
406		767
…		…
450	=item cf::CLASS::attachment $name, ...	811	=item cf::CLASS::attachment $name, ...
451		812
452	Register an attachment by C<$name> through which attachable objects of the	813	Register an attachment by C<$name> through which attachable objects of the
453	given CLASS can refer to this attachment.	814	given CLASS can refer to this attachment.
454		815
455	Some classes such as crossfire maps and objects can specify attachments	816	Some classes such as deliantra maps and objects can specify attachments
456	that are attached at load/instantiate time, thus the need for a name.	817	that are attached at load/instantiate time, thus the need for a name.
457		818
458	These calls expect any number of the following handler/hook descriptions:	819	These calls expect any number of the following handler/hook descriptions:
459		820
460	=over 4	821	=over 4
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	930	$registry = $CB_TYPE[$object_type] ||= [];
570		931
571	} elsif ($type eq "subtype") {	932	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	933	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	934	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	935	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		936
576	} elsif ($type eq "package") {	937	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	938	my $pkg = shift @arg;
578		939
579	while (my ($name, $id) = each %cb_id) {	940	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	969	_attach $registry, $klass, @attach;
609	}	970	}
610		971
611	$obj->{$name} = \%arg;	972	$obj->{$name} = \%arg;
612	} else {	973	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	974	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	975	}
615		976
616	$obj->{_attachment}{$name} = undef;	977	$obj->{_attachment}{$name} = undef;
617	}	978	}
618		979
…		…
620	if (ref $_[0]) {	981	if (ref $_[0]) {
621	_object_attach @_;	982	_object_attach @_;
622	} else {	983	} else {
623	_attach shift->_attach_registry, @_;	984	_attach shift->_attach_registry, @_;
624	}	985	}
		986	_recalc_want;
625	};	987	};
626		988
627	# all those should be optimised	989	# all those should be optimised
628	sub cf::attachable::detach {	990	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	991	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	994	delete $obj->{_attachment}{$name};
633	reattach ($obj);	995	reattach ($obj);
634	} else {	996	} else {
635	Carp::croak "cannot, currently, detach class attachments";	997	Carp::croak "cannot, currently, detach class attachments";
636	}	998	}
		999	_recalc_want;
637	};	1000	};
638		1001
639	sub cf::attachable::attached {	1002	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	1003	my ($obj, $name) = @_;
641		1004
…		…
656	";	1019	";
657	die if $@;	1020	die if $@;
658	}	1021	}
659		1022
660	our $override;	1023	our $override;
661	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1024	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
662		1025
663	sub override {	1026	sub override {
664	$override = 1;	1027	$override = 1;
665	@invoke_results = ();	1028	@INVOKE_RESULTS = (@_);
666	}	1029	}
667		1030
668	sub do_invoke {	1031	sub do_invoke {
669	my $event = shift;	1032	my $event = shift;
670	my $callbacks = shift;	1033	my $callbacks = shift;
671		1034
672	@invoke_results = ();	1035	@INVOKE_RESULTS = ();
673		1036
674	local $override;	1037	local $override;
675		1038
676	for (@$callbacks) {	1039	for (@$callbacks) {
677	eval { &{$_->[1]} };	1040	eval { &{$_->[1]} };
…		…
686	}	1049	}
687		1050
688	0	1051	0
689	}	1052	}
690		1053
691	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1054	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
692		1055
693	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
694		1057
695	Generate an object-specific event with the given arguments.	1058	Generate an object-specific event with the given arguments.
696		1059
697	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1060	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
698	removed in future versions), and there is no public API to access override	1061	removed in future versions), and there is no public API to access override
699	results (if you must, access C<@cf::invoke_results> directly).	1062	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
700		1063
701	=back	1064	=back
702		1065
703	=cut	1066	=cut
704		1067
705	#############################################################################	1068	#############################################################################
706	# object support	1069	# object support
		1070
		1071	sub _object_equal($$);
		1072	sub _object_equal($$) {
		1073	my ($a, $b) = @_;
		1074
		1075	return 0 unless (ref $a) eq (ref $b);
		1076
		1077	if ("HASH" eq ref $a) {
		1078	my @ka = keys %$a;
		1079	my @kb = keys %$b;
		1080
		1081	return 0 if @ka != @kb;
		1082
		1083	for (0 .. $#ka) {
		1084	return 0 unless $ka[$_] eq $kb[$_];
		1085	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1086	}
		1087
		1088	} elsif ("ARRAY" eq ref $a) {
		1089
		1090	return 0 if @$a != @$b;
		1091
		1092	for (0 .. $#$a) {
		1093	return 0 unless _object_equal $a->[$_], $b->[$_];
		1094	}
		1095
		1096	} elsif ($a ne $b) {
		1097	return 0;
		1098	}
		1099
		1100	1
		1101	}
		1102
		1103	our $SLOW_MERGES;#d#
		1104	sub _can_merge {
		1105	my ($ob1, $ob2) = @_;
		1106
		1107	++$SLOW_MERGES;#d#
		1108
		1109	# we do the slow way here
		1110	return _object_equal $ob1, $ob2
		1111	}
707		1112
708	sub reattach {	1113	sub reattach {
709	# basically do the same as instantiate, without calling instantiate	1114	# basically do the same as instantiate, without calling instantiate
710	my ($obj) = @_;	1115	my ($obj) = @_;
711		1116
		1117	# no longer needed after getting rid of delete_package?
712	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1118	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
713		1119
714	my $registry = $obj->registry;	1120	my $registry = $obj->registry;
715		1121
716	@$registry = ();	1122	@$registry = ();
717		1123
…		…
732	cf::attachable->attach (	1138	cf::attachable->attach (
733	prio => -1000000,	1139	prio => -1000000,
734	on_instantiate => sub {	1140	on_instantiate => sub {
735	my ($obj, $data) = @_;	1141	my ($obj, $data) = @_;
736		1142
737	$data = from_json $data;	1143	$data = decode_json $data;
738		1144
739	for (@$data) {	1145	for (@$data) {
740	my ($name, $args) = @$_;	1146	my ($name, $args) = @$_;
741		1147
742	$obj->attach ($name, %{$args || {} });	1148	$obj->attach ($name, %{$args || {} });
…		…
758	sub object_freezer_save {	1164	sub object_freezer_save {
759	my ($filename, $rdata, $objs) = @_;	1165	my ($filename, $rdata, $objs) = @_;
760		1166
761	sync_job {	1167	sync_job {
762	if (length $$rdata) {	1168	if (length $$rdata) {
		1169	utf8::decode (my $decname = $filename);
763	warn sprintf "saving %s (%d,%d)\n",	1170	warn sprintf "saving %s (%d,%d)\n",
764	$filename, length $$rdata, scalar @$objs;	1171	$decname, length $$rdata, scalar @$objs;
765		1172
766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1173	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
767	chmod SAVE_MODE, $fh;	1174	aio_chmod $fh, SAVE_MODE;
768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1175	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
769	aio_fsync $fh if $cf::USE_FSYNC;	1176	if ($cf::USE_FSYNC) {
		1177	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;
		1178	aio_fsync $fh;
		1179	}
770	close $fh;	1180	aio_close $fh;
771		1181
772	if (@$objs) {	1182	if (@$objs) {
773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1183	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
774	chmod SAVE_MODE, $fh;	1184	aio_chmod $fh, SAVE_MODE;
775	my $data = Storable::nfreeze { version => 1, objs => $objs };	1185	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
776	aio_write $fh, 0, (length $data), $data, 0;	1186	aio_write $fh, 0, (length $data), $data, 0;
777	aio_fsync $fh if $cf::USE_FSYNC;	1187	if ($cf::USE_FSYNC) {
		1188	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1189	aio_fsync $fh;
		1190	}
778	close $fh;	1191	aio_close $fh;
779	aio_rename "$filename.pst~", "$filename.pst";	1192	aio_rename "$filename.pst~", "$filename.pst";
780	}	1193	}
781	} else {	1194	} else {
782	aio_unlink "$filename.pst";	1195	aio_unlink "$filename.pst";
783	}	1196	}
784		1197
785	aio_rename "$filename~", $filename;	1198	aio_rename "$filename~", $filename;
		1199
		1200	$filename =~ s%/[^/]+$%%;
		1201	aio_pathsync $filename if $cf::USE_FSYNC;
786	} else {	1202	} else {
787	warn "FATAL: $filename~: $!\n";	1203	warn "unable to save objects: $filename~: $!\n";
788	}	1204	}
789	} else {	1205	} else {
790	aio_unlink $filename;	1206	aio_unlink $filename;
791	aio_unlink "$filename.pst";	1207	aio_unlink "$filename.pst";
792	}	1208	}
793	}	1209	};
794	}	1210	}
795		1211
796	sub object_freezer_as_string {	1212	sub object_freezer_as_string {
797	my ($rdata, $objs) = @_;	1213	my ($rdata, $objs) = @_;
798		1214
…		…
810	or return;	1226	or return;
811		1227
812	unless (aio_stat "$filename.pst") {	1228	unless (aio_stat "$filename.pst") {
813	(aio_load "$filename.pst", $av) >= 0	1229	(aio_load "$filename.pst", $av) >= 0
814	or return;	1230	or return;
		1231
815	$av = eval { (Storable::thaw $av)->{objs} };	1232	my $st = eval { Coro::Storable::thaw $av };
		1233	$av = $st->{objs};
816	}	1234	}
817		1235
		1236	utf8::decode (my $decname = $filename);
818	warn sprintf "loading %s (%d)\n",	1237	warn sprintf "loading %s (%d,%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1238	$decname, length $data, scalar @{$av || []};
		1239
820	return ($data, $av);	1240	($data, $av)
821	}	1241	}
		1242
		1243	=head2 COMMAND CALLBACKS
		1244
		1245	=over 4
		1246
		1247	=cut
822		1248
823	#############################################################################	1249	#############################################################################
824	# command handling &c	1250	# command handling &c
825		1251
826	=item cf::register_command $name => \&callback($ob,$args);	1252	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1265	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1266	}
841		1267
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1268	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1269
844	Register a callbackf ro execution when the client sends an extcmd packet.	1270	Register a callback for execution when the client sends an (synchronous)
		1271	extcmd packet. Ext commands will be processed in the order they are
		1272	received by the server, like other user commands. The first argument is
		1273	the logged-in player. Ext commands can only be processed after a player
		1274	has logged in successfully.
845		1275
846	If the callback returns something, it is sent back as if reply was being	1276	If the callback returns something, it is sent back as if reply was being
847	called.	1277	called.
848		1278
		1279	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1280
		1281	Register a callback for execution when the client sends an (asynchronous)
		1282	exticmd packet. Exti commands are processed by the server as soon as they
		1283	are received, i.e. out of order w.r.t. other commands. The first argument
		1284	is a client socket. Exti commands can be received anytime, even before
		1285	log-in.
		1286
		1287	If the callback returns something, it is sent back as if reply was being
		1288	called.
		1289
849	=cut	1290	=cut
850		1291
851	sub register_extcmd {	1292	sub register_extcmd {
852	my ($name, $cb) = @_;	1293	my ($name, $cb) = @_;
853		1294
854	$EXTCMD{$name} = $cb;	1295	$EXTCMD{$name} = $cb;
855	}	1296	}
		1297
		1298	sub register_exticmd {
		1299	my ($name, $cb) = @_;
		1300
		1301	$EXTICMD{$name} = $cb;
		1302	}
		1303
		1304	use File::Glob ();
856		1305
857	cf::player->attach (	1306	cf::player->attach (
858	on_command => sub {	1307	on_command => sub {
859	my ($pl, $name, $params) = @_;	1308	my ($pl, $name, $params) = @_;
860		1309
…		…
868	cf::override;	1317	cf::override;
869	},	1318	},
870	on_extcmd => sub {	1319	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1320	my ($pl, $buf) = @_;
872		1321
873	my $msg = eval { from_json $buf };	1322	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1323
875	if (ref $msg) {	1324	if (ref $msg) {
		1325	my ($type, $reply, @payload) =
		1326	"ARRAY" eq ref $msg
		1327	? @$msg
		1328	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1329
		1330	my @reply;
		1331
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1332	if (my $cb = $EXTCMD{$type}) {
877	if (my %reply = $cb->($pl, $msg)) {	1333	@reply = $cb->($pl, @payload);
878	$pl->ext_reply ($msg->{msgid}, %reply);
879	}
880	}	1334	}
		1335
		1336	$pl->ext_reply ($reply, @reply)
		1337	if $reply;
		1338
881	} else {	1339	} else {
882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1340	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
883	}	1341	}
884		1342
885	cf::override;	1343	cf::override;
886	},	1344	},
887	);	1345	);
888		1346
		1347	# "readahead" all extensions
889	sub load_extension {	1348	sub cache_extensions {
890	my ($path) = @_;	1349	my $grp = IO::AIO::aio_group;
891		1350
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1351	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
893	my $base = $1;	1352	for (grep /\.ext$/, @{$_[0]}) {
894	my $pkg = $1;	1353	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}	1354	}
917	die $@;
918	}	1355	};
919		1356
920	push @EXTS, $pkg;	1357	$grp
921	}	1358	}
922		1359
923	sub load_extensions {	1360	sub load_extensions {
		1361	cf::sync_job {
		1362	my %todo;
		1363
924	for my $ext (<$LIBDIR/*.ext>) {	1364	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1365	next unless -r $path;
926	eval {	1366
927	load_extension $ext;	1367	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1368	my $base = $1;
		1369	my $pkg = $1;
		1370	$pkg =~ s/[^[:word:]]/_/g;
		1371	$pkg = "ext::$pkg";
		1372
		1373	open my $fh, "<:utf8", $path
		1374	or die "$path: $!";
		1375
		1376	my $source = do { local $/; <$fh> };
		1377
		1378	my %ext = (
		1379	path => $path,
		1380	base => $base,
		1381	pkg => $pkg,
		1382	);
		1383
		1384	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1385	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1386
		1387	$ext{source} =
		1388	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1389	. "#line 1 \"$path\"\n{\n"
		1390	. $source
		1391	. "\n};\n1";
		1392
		1393	$todo{$base} = \%ext;
		1394	}
		1395
		1396	my %done;
		1397	while (%todo) {
		1398	my $progress;
		1399
		1400	while (my ($k, $v) = each %todo) {
		1401	for (split /,\s*/, $v->{meta}{depends}) {
		1402	goto skip
		1403	unless exists $done{$_};
		1404	}
		1405
		1406	warn "... loading '$k' into '$v->{pkg}'\n";
		1407
		1408	unless (eval $v->{source}) {
		1409	my $msg = $@ ? "$v->{path}: $@\n"
		1410	: "$v->{base}: extension inactive.\n";
		1411
		1412	if (exists $v->{meta}{mandatory}) {
		1413	warn $msg;
		1414	cf::cleanup "mandatory extension failed to load, exiting.";
		1415	}
		1416
		1417	warn $msg;
		1418	}
		1419
		1420	$done{$k} = delete $todo{$k};
		1421	push @EXTS, $v->{pkg};
		1422	$progress = 1;
928	1	1423	}
929	} or warn "$ext not loaded: $@";	1424
		1425	skip:
		1426	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1427	unless $progress;
		1428	}
930	}	1429	};
931	}	1430	}
932		1431
933	#############################################################################	1432	#############################################################################
934		1433
		1434	=back
		1435
935	=head2 CORE EXTENSIONS	1436	=head2 CORE EXTENSIONS
936		1437
937	Functions and methods that extend core crossfire objects.	1438	Functions and methods that extend core deliantra objects.
938		1439
939	=cut	1440	=cut
940		1441
941	package cf::player;	1442	package cf::player;
942		1443
…		…
944		1445
945	=head3 cf::player	1446	=head3 cf::player
946		1447
947	=over 4	1448	=over 4
948		1449
		1450	=item cf::player::num_playing
		1451
		1452	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1453
		1454	=cut
		1455
		1456	sub num_playing {
		1457	scalar grep
		1458	$_->ob->map
		1459	&& !$_->hidden
		1460	&& !$_->ob->flag (cf::FLAG_WIZ),
		1461	cf::player::list
		1462	}
		1463
949	=item cf::player::find $login	1464	=item cf::player::find $login
950		1465
951	Returns the given player object, loading it if necessary (might block).	1466	Returns the given player object, loading it if necessary (might block).
952		1467
953	=cut	1468	=cut
954		1469
955	sub playerdir($) {	1470	sub playerdir($) {
956	cf::localdir	1471	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1472	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1473	}
962		1474
963	sub path($) {	1475	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1476	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
974		1486
975	sub exists($) {	1487	sub exists($) {
976	my ($login) = @_;	1488	my ($login) = @_;
977		1489
978	$cf::PLAYER{$login}	1490	$cf::PLAYER{$login}
979	or cf::sync_job { !aio_stat path $login }	1491	or !aio_stat path $login
980	}	1492	}
981		1493
982	sub find($) {	1494	sub find($) {
983	return $cf::PLAYER{$_[0]} || do {	1495	return $cf::PLAYER{$_[0]} || do {
984	my $login = $_[0];	1496	my $login = $_[0];
…		…
991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1503	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1504	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
993	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1505	aio_unlink +(playerdir $login) . "/$login.pl.pst";
994	aio_unlink +(playerdir $login) . "/$login.pl";	1506	aio_unlink +(playerdir $login) . "/$login.pl";
995		1507
996	my $pl = load_pl path $login	1508	my $f = new_from_file cf::object::thawer path $login
997	or return;	1509	or return;
		1510
		1511	my $pl = cf::player::load_pl $f
		1512	or return;
		1513
		1514	local $cf::PLAYER_LOADING{$login} = $pl;
		1515	$f->resolve_delayed_derefs;
998	$cf::PLAYER{$login} = $pl	1516	$cf::PLAYER{$login} = $pl
999	}	1517	}
1000	}	1518	}
1001	}	1519	}
1002		1520
…		…
1011	return if $pl->{deny_save};	1529	return if $pl->{deny_save};
1012		1530
1013	aio_mkdir playerdir $pl, 0770;	1531	aio_mkdir playerdir $pl, 0770;
1014	$pl->{last_save} = $cf::RUNTIME;	1532	$pl->{last_save} = $cf::RUNTIME;
1015		1533
		1534	cf::get_slot 0.01;
		1535
1016	$pl->save_pl ($path);	1536	$pl->save_pl ($path);
1017	Coro::cede;	1537	cf::cede_to_tick;
1018	}	1538	}
1019		1539
1020	sub new($) {	1540	sub new($) {
1021	my ($login) = @_;	1541	my ($login) = @_;
1022		1542
…		…
1028	$cf::PLAYER{$login} = $self;	1548	$cf::PLAYER{$login} = $self;
1029		1549
1030	$self	1550	$self
1031	}	1551	}
1032		1552
		1553	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1554
		1555	=cut
		1556
		1557	sub send_msg {
		1558	my $ns = shift->ns
		1559	or return;
		1560	$ns->send_msg (@_);
		1561	}
		1562
1033	=item $pl->quit_character	1563	=item $pl->quit_character
1034		1564
1035	Nukes the player without looking back. If logged in, the connection will	1565	Nukes the player without looking back. If logged in, the connection will
1036	be destroyed. May block for a long time.	1566	be destroyed. May block for a long time.
1037		1567
…		…
1041	my ($pl) = @_;	1571	my ($pl) = @_;
1042		1572
1043	my $name = $pl->ob->name;	1573	my $name = $pl->ob->name;
1044		1574
1045	$pl->{deny_save} = 1;	1575	$pl->{deny_save} = 1;
1046	$pl->password ("*"); # this should lock out the player until we nuked the dir	1576	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1047		1577
1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1578	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1049	$pl->deactivate;	1579	$pl->deactivate;
		1580	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1581	$pl->ob->check_score;
1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1582	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1051	$pl->ns->destroy if $pl->ns;	1583	$pl->ns->destroy if $pl->ns;
1052		1584
1053	my $path = playerdir $pl;	1585	my $path = playerdir $pl;
1054	my $temp = "$path~$cf::RUNTIME~deleting~";	1586	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1084	while and may block, so not sync_job-capable, ever.	1616	while and may block, so not sync_job-capable, ever.
1085		1617
1086	=cut	1618	=cut
1087		1619
1088	sub list_logins {	1620	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1621	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1622	or return [];
1091		1623
1092	my @logins;	1624	my @logins;
1093		1625
1094	for my $login (@$dirs) {	1626	for my $login (@$dirs) {
		1627	my $path = path $login;
		1628
		1629	# a .pst is a dead give-away for a valid player
		1630	# if no pst file found, open and chekc for blocked users
		1631	if (aio_stat "$path.pst") {
1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1632	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1096	aio_read $fh, 0, 512, my $buf, 0 or next;	1633	aio_read $fh, 0, 512, my $buf, 0 or next;
1097	$buf !~ /^password -------------$/m or next; # official not-valid tag	1634	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1635	}
1098		1636
1099	utf8::decode $login;	1637	utf8::decode $login;
1100	push @logins, $login;	1638	push @logins, $login;
1101	}	1639	}
1102		1640
…		…
1129	}	1667	}
1130		1668
1131	\@paths	1669	\@paths
1132	}	1670	}
1133		1671
		1672	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1673
		1674	Expand deliantra pod fragments into protocol xml.
		1675
1134	=item $player->ext_reply ($msgid, %msg)	1676	=item $player->ext_reply ($msgid, @msg)
1135		1677
1136	Sends an ext reply to the player.	1678	Sends an ext reply to the player.
1137		1679
1138	=cut	1680	=cut
1139		1681
1140	sub ext_reply($$%) {	1682	sub ext_reply($$@) {
1141	my ($self, $id, %msg) = @_;	1683	my ($self, $id, @msg) = @_;
1142		1684
1143	$msg{msgid} = $id;	1685	$self->ns->ext_reply ($id, @msg)
1144
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1686	}
1147		1687
1148	=item $player->ext_event ($type, %msg)	1688	=item $player->ext_msg ($type, @msg)
1149		1689
1150	Sends an ext event to the client.	1690	Sends an ext event to the client.
1151		1691
1152	=cut	1692	=cut
1153		1693
1154	sub ext_event($$%) {	1694	sub ext_msg($$@) {
1155	my ($self, $type, %msg) = @_;	1695	my ($self, $type, @msg) = @_;
1156		1696
1157	$self->ns->ext_event ($type, %msg);	1697	$self->ns->ext_msg ($type, @msg);
1158	}	1698	}
1159		1699
1160	=head3 cf::region	1700	=head3 cf::region
1161		1701
1162	=over 4	1702	=over 4
…		…
1165		1705
1166	package cf::region;	1706	package cf::region;
1167		1707
1168	=item cf::region::find_by_path $path	1708	=item cf::region::find_by_path $path
1169		1709
1170	Tries to decuce the probable region for a map knowing only its path.	1710	Tries to decuce the likely region for a map knowing only its path.
1171		1711
1172	=cut	1712	=cut
1173		1713
1174	sub find_by_path($) {	1714	sub find_by_path($) {
1175	my ($path) = @_;	1715	my ($path) = @_;
1176		1716
1177	my ($match, $specificity);	1717	my ($match, $specificity);
1178		1718
1179	for my $region (list) {	1719	for my $region (list) {
1180	if ($region->match && $path =~ $region->match) {	1720	if ($region->{match} && $path =~ $region->{match}) {
1181	($match, $specificity) = ($region, $region->specificity)	1721	($match, $specificity) = ($region, $region->specificity)
1182	if $region->specificity > $specificity;	1722	if $region->specificity > $specificity;
1183	}	1723	}
1184	}	1724	}
1185		1725
…		…
1206	our $MAX_RESET = 3600;	1746	our $MAX_RESET = 3600;
1207	our $DEFAULT_RESET = 3000;	1747	our $DEFAULT_RESET = 3000;
1208		1748
1209	sub generate_random_map {	1749	sub generate_random_map {
1210	my ($self, $rmp) = @_;	1750	my ($self, $rmp) = @_;
		1751
		1752	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1753
1211	# mit "rum" bekleckern, nicht	1754	# mit "rum" bekleckern, nicht
1212	$self->_create_random_map (	1755	$self->_create_random_map (
1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1756	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1757	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1758	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1249	my ($self, $merge) = @_;	1792	my ($self, $merge) = @_;
1250		1793
1251	# we have to keep some variables in memory intact	1794	# we have to keep some variables in memory intact
1252	local $self->{path};	1795	local $self->{path};
1253	local $self->{load_path};	1796	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1797
1257	$self->SUPER::thawer_merge ($merge);	1798	$self->SUPER::thawer_merge ($merge);
1258	}	1799	}
1259		1800
1260	sub normalise {	1801	sub normalise {
…		…
1307	$self->init; # pass $1 etc.	1848	$self->init; # pass $1 etc.
1308	return $self;	1849	return $self;
1309	}	1850	}
1310	}	1851	}
1311		1852
1312	Carp::carp "unable to resolve path '$path' (base '$base').";	1853	Carp::cluck "unable to resolve path '$path' (base '$base').";
1313	()	1854	()
1314	}	1855	}
1315		1856
1316	sub init {	1857	sub init {
1317	my ($self) = @_;	1858	my ($self) = @_;
…		…
1332		1873
1333	# the original (read-only) location	1874	# the original (read-only) location
1334	sub load_path {	1875	sub load_path {
1335	my ($self) = @_;	1876	my ($self) = @_;
1336		1877
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1878	"$MAPDIR/$self->{path}.map"
1338	}	1879	}
1339		1880
1340	# the temporary/swap location	1881	# the temporary/swap location
1341	sub save_path {	1882	sub save_path {
1342	my ($self) = @_;	1883	my ($self) = @_;
1343		1884
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1885	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1886	"$TMPDIR/$path.map"
1346	}	1887	}
1347		1888
1348	# the unique path, undef == no special unique path	1889	# the unique path, undef == no special unique path
1349	sub uniq_path {	1890	sub uniq_path {
1350	my ($self) = @_;	1891	my ($self) = @_;
1351		1892
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1894	"$UNIQUEDIR/$path"
1354	}	1895	}
1355		1896
1356	# and all this just because we cannot iterate over	1897	sub decay_objects {
1357	# all maps in C++...
1358	sub change_all_map_light {
1359	my ($change) = @_;	1898	my ($self) = @_;
1360		1899
1361	$_->change_map_light ($change)	1900	return if $self->{deny_reset};
1362	for grep $_->outdoor, values %cf::MAP;	1901
		1902	$self->do_decay_objects;
1363	}	1903	}
1364		1904
1365	sub unlink_save {	1905	sub unlink_save {
1366	my ($self) = @_;	1906	my ($self) = @_;
1367		1907
…		…
1372		1912
1373	sub load_header_from($) {	1913	sub load_header_from($) {
1374	my ($self, $path) = @_;	1914	my ($self, $path) = @_;
1375		1915
1376	utf8::encode $path;	1916	utf8::encode $path;
1377	#aio_open $path, O_RDONLY, 0	1917	my $f = new_from_file cf::object::thawer $path
1378	# or return;
1379
1380	$self->_load_header ($path)
1381	or return;	1918	or return;
		1919
		1920	$self->_load_header ($f)
		1921	or return;
		1922
		1923	local $MAP_LOADING{$self->{path}} = $self;
		1924	$f->resolve_delayed_derefs;
1382		1925
1383	$self->{load_path} = $path;	1926	$self->{load_path} = $path;
1384		1927
1385	1	1928	1
1386	}	1929	}
…		…
1425	$self->load_header_orig	1968	$self->load_header_orig
1426	or return;	1969	or return;
1427	$self->prepare_orig;	1970	$self->prepare_orig;
1428	}	1971	}
1429		1972
		1973	$self->{deny_reset} = 1
		1974	if $self->no_reset;
		1975
1430	$self->default_region (cf::region::find_by_path $self->{path})	1976	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	1977	unless $self->default_region;
1432		1978
1433	1	1979	1
1434	}	1980	}
…		…
1437	sub find {	1983	sub find {
1438	my ($path, $origin) = @_;	1984	my ($path, $origin) = @_;
1439		1985
1440	$path = normalise $path, $origin && $origin->path;	1986	$path = normalise $path, $origin && $origin->path;
1441		1987
		1988	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1442	cf::lock_wait "map_find:$path";	1989	my $guard2 = cf::lock_acquire "map_find:$path";
1443		1990
1444	$cf::MAP{$path} || do {	1991	$cf::MAP{$path} || do {
1445	my $guard = cf::lock_acquire "map_find:$path";
1446	my $map = new_from_path cf::map $path	1992	my $map = new_from_path cf::map $path
1447	or return;	1993	or return;
1448		1994
1449	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1450		1996
1451	$map->load_header	1997	$map->load_header
1452	or return;	1998	or return;
1453		1999
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	2001	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard2;
		2004	undef $guard1;
1457	$map->reset;	2005	$map->reset;
1458	undef $guard;
1459	return find $path;	2006	return find $path;
1460	}	2007	}
1461		2008
1462	$cf::MAP{$path} = $map	2009	$cf::MAP{$path} = $map
1463	}	2010	}
…		…
1470	my ($self) = @_;	2017	my ($self) = @_;
1471		2018
1472	local $self->{deny_reset} = 1; # loading can take a long time	2019	local $self->{deny_reset} = 1; # loading can take a long time
1473		2020
1474	my $path = $self->{path};	2021	my $path = $self->{path};
		2022
		2023	{
1475	my $guard = cf::lock_acquire "map_load:$path";	2024	my $guard = cf::lock_acquire "map_data:$path";
1476		2025
		2026	return unless $self->valid;
1477	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1478		2028
1479	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1480		2030
1481	$self->alloc;	2031	$self->alloc;
1482		2032
1483	$self->pre_load;	2033	$self->pre_load;
1484	Coro::cede;	2034	cf::cede_to_tick;
1485		2035
1486	$self->_load_objects ($self->{load_path}, 1)	2036	my $f = new_from_file cf::object::thawer $self->{load_path};
		2037	$f->skip_block;
		2038	$self->_load_objects ($f)
1487	or return;	2039	or return;
1488		2040
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->post_load_original
1490	if delete $self->{load_original};	2042	if delete $self->{load_original};
1491		2043
1492	if (my $uniq = $self->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;	2045	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1495	$self->clear_unique_items;	2048	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1497	}	2052	}
1498	}	2053	}
1499		2054
1500	Coro::cede;	2055	$f->resolve_delayed_derefs;
		2056
		2057	cf::cede_to_tick;
1501	# now do the right thing for maps	2058	# now do the right thing for maps
1502	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($self->{deny_activate}) {
1506	$self->decay_objects;
1507	$self->fix_auto_apply;
1508	$self->update_buttons;
1509	Coro::cede;
1510	$self->set_darkness_map;
1511	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	2061	unless $self->difficulty;
1513	Coro::cede;	2062	cf::cede_to_tick;
		2063
		2064	unless ($self->{deny_activate}) {
		2065	$self->decay_objects;
		2066	$self->fix_auto_apply;
		2067	$self->update_buttons;
		2068	cf::cede_to_tick;
1514	$self->activate;	2069	$self->activate;
1515	Coro::cede;	2070	}
		2071
		2072	$self->{last_save} = $cf::RUNTIME;
		2073	$self->last_access ($cf::RUNTIME);
		2074
		2075	$self->in_memory (cf::MAP_ACTIVE);
1516	}	2076	}
1517		2077
1518	$self->post_load;	2078	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	2079	}
1523		2080
1524	sub customise_for {	2081	sub customise_for {
1525	my ($self, $ob) = @_;	2082	my ($self, $ob) = @_;
1526		2083
1527	return find "~" . $ob->name . "/" . $self->{path}	2084	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	2085	if $self->per_player;
1529		2086
		2087	# return find "?party/" . $ob->name . "/" . $self->{path}
		2088	# if $self->per_party;
		2089
1530	$self	2090	$self
1531	}	2091	}
1532		2092
1533	# find and load all maps in the 3x3 area around a map	2093	# find and load all maps in the 3x3 area around a map
1534	sub load_diag {	2094	sub load_neighbours {
1535	my ($map) = @_;	2095	my ($map) = @_;
1536		2096
1537	my @diag; # diagonal neighbours	2097	my @neigh; # diagonal neighbours
1538		2098
1539	for (0 .. 3) {	2099	for (0 .. 3) {
1540	my $neigh = $map->tile_path ($_)	2100	my $neigh = $map->tile_path ($_)
1541	or next;	2101	or next;
1542	$neigh = find $neigh, $map	2102	$neigh = find $neigh, $map
1543	or next;	2103	or next;
1544	$neigh->load;	2104	$neigh->load;
1545		2105
		2106	push @neigh,
1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2107	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2108	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1548	}	2109	}
1549		2110
1550	for (@diag) {	2111	for (grep defined $_->[0], @neigh) {
		2112	my ($path, $origin) = @$_;
1551	my $neigh = find @$_	2113	my $neigh = find $path, $origin
1552	or next;	2114	or next;
1553	$neigh->load;	2115	$neigh->load;
1554	}	2116	}
1555	}	2117	}
1556		2118
…		…
1561	}	2123	}
1562		2124
1563	sub do_load_sync {	2125	sub do_load_sync {
1564	my ($map) = @_;	2126	my ($map) = @_;
1565		2127
		2128	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2129	if $Coro::current == $Coro::main;
		2130
1566	cf::sync_job { $map->load };	2131	cf::sync_job { $map->load };
1567	}	2132	}
1568		2133
1569	our %MAP_PREFETCH;	2134	our %MAP_PREFETCH;
1570	our $MAP_PREFETCHER = undef;	2135	our $MAP_PREFETCHER = undef;
1571		2136
1572	sub find_async {	2137	sub find_async {
1573	my ($path, $origin) = @_;	2138	my ($path, $origin, $load) = @_;
1574		2139
1575	$path = normalise $path, $origin && $origin->{path};	2140	$path = normalise $path, $origin && $origin->{path};
1576		2141
1577	if (my $map = $cf::MAP{$path}) {	2142	if (my $map = $cf::MAP{$path}) {
1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2143	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1579	}	2144	}
1580		2145
1581	undef $MAP_PREFETCH{$path};	2146	$MAP_PREFETCH{$path} |= $load;
		2147
1582	$MAP_PREFETCHER ||= cf::async {	2148	$MAP_PREFETCHER ||= cf::async {
		2149	$Coro::current->{desc} = "map prefetcher";
		2150
1583	while (%MAP_PREFETCH) {	2151	while (%MAP_PREFETCH) {
1584	for my $path (keys %MAP_PREFETCH) {	2152	while (my ($k, $v) = each %MAP_PREFETCH) {
1585	my $map = find $path	2153	if (my $map = find $k) {
1586	or next;
1587	$map->load;	2154	$map->load if $v;
		2155	}
1588		2156
1589	delete $MAP_PREFETCH{$path};	2157	delete $MAP_PREFETCH{$k};
1590	}	2158	}
1591	}	2159	}
1592	undef $MAP_PREFETCHER;	2160	undef $MAP_PREFETCHER;
1593	};	2161	};
1594	$MAP_PREFETCHER->prio (6);	2162	$MAP_PREFETCHER->prio (6);
…		…
1597	}	2165	}
1598		2166
1599	sub save {	2167	sub save {
1600	my ($self) = @_;	2168	my ($self) = @_;
1601		2169
1602	my $lock = cf::lock_acquire "map_data:" . $self->path;	2170	my $lock = cf::lock_acquire "map_data:$self->{path}";
1603		2171
1604	$self->{last_save} = $cf::RUNTIME;	2172	$self->{last_save} = $cf::RUNTIME;
1605		2173
1606	return unless $self->dirty;	2174	return unless $self->dirty;
1607		2175
…		…
1613	return if $self->{deny_save};	2181	return if $self->{deny_save};
1614		2182
1615	local $self->{last_access} = $self->last_access;#d#	2183	local $self->{last_access} = $self->last_access;#d#
1616		2184
1617	cf::async {	2185	cf::async {
		2186	$Coro::current->{desc} = "map player save";
1618	$_->contr->save for $self->players;	2187	$_->contr->save for $self->players;
1619	};	2188	};
		2189
		2190	cf::get_slot 0.02;
1620		2191
1621	if ($uniq) {	2192	if ($uniq) {
1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1624	} else {	2195	} else {
…		…
1630	my ($self) = @_;	2201	my ($self) = @_;
1631		2202
1632	# save first because save cedes	2203	# save first because save cedes
1633	$self->save;	2204	$self->save;
1634		2205
1635	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1636		2207
1637	return if $self->players;	2208	return if $self->players;
1638	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_ACTIVE;
1639	return if $self->{deny_save};	2210	return if $self->{deny_save};
1640		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1641	$self->clear;	2216	$self->clear;
1642	$self->in_memory (cf::MAP_SWAPPED);
1643	}	2217	}
1644		2218
1645	sub reset_at {	2219	sub reset_at {
1646	my ($self) = @_;	2220	my ($self) = @_;
1647		2221
1648	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
1650	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1651		2224
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		2227
…		…
1665	my ($self) = @_;	2238	my ($self) = @_;
1666		2239
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		2241
1669	return if $self->players;	2242	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		2243
1672	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path, "\n";
1673		2245
1674	$self->in_memory (cf::MAP_SWAPPED);	2246	$self->in_memory (cf::MAP_SWAPPED);
1675		2247
1676	# need to save uniques path	2248	# need to save uniques path
1677	unless ($self->{deny_save}) {	2249	unless ($self->{deny_save}) {
…		…
1681	if $uniq;	2253	if $uniq;
1682	}	2254	}
1683		2255
1684	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1685		2257
		2258	$self->deactivate;
		2259	$_->clear_links_to ($self) for values %cf::MAP;
1686	$self->clear;	2260	$self->clear;
1687
1688	$_->clear_links_to ($self) for values %cf::MAP;
1689		2261
1690	$self->unlink_save;	2262	$self->unlink_save;
1691	$self->destroy;	2263	$self->destroy;
1692	}	2264	}
1693		2265
1694	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1695		2267
1696	sub nuke {	2268	sub nuke {
1697	my ($self) = @_;	2269	my ($self) = @_;
1698		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
1699	delete $cf::MAP{$self->path};	2274	delete $cf::MAP{$self->path};
1700		2275
1701	$self->unlink_save;	2276	$self->unlink_save;
1702		2277
1703	bless $self, "cf::map";	2278	bless $self, "cf::map";
1704	delete $self->{deny_reset};	2279	delete $self->{deny_reset};
1705	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1706	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1708		2283
1709	$cf::MAP{$self->path} = $self;	2284	$cf::MAP{$self->path} = $self;
		2285	}
1710		2286
1711	$self->reset; # polite request, might not happen	2287	$self->reset; # polite request, might not happen
		2288	}
		2289
		2290	=item $maps = cf::map::tmp_maps
		2291
		2292	Returns an arrayref with all map paths of currently instantiated and saved
		2293	maps. May block.
		2294
		2295	=cut
		2296
		2297	sub tmp_maps() {
		2298	[
		2299	map {
		2300	utf8::decode $_;
		2301	/\.map$/
		2302	? normalise $_
		2303	: ()
		2304	} @{ aio_readdir $TMPDIR or [] }
		2305	]
		2306	}
		2307
		2308	=item $maps = cf::map::random_maps
		2309
		2310	Returns an arrayref with all map paths of currently instantiated and saved
		2311	random maps. May block.
		2312
		2313	=cut
		2314
		2315	sub random_maps() {
		2316	[
		2317	map {
		2318	utf8::decode $_;
		2319	/\.map$/
		2320	? normalise "?random/$_"
		2321	: ()
		2322	} @{ aio_readdir $RANDOMDIR or [] }
		2323	]
1712	}	2324	}
1713		2325
1714	=item cf::map::unique_maps	2326	=item cf::map::unique_maps
1715		2327
1716	Returns an arrayref of paths of all shared maps that have	2328	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2329	instantiated unique items. May block.
1718		2330
1719	=cut	2331	=cut
1720		2332
1721	sub unique_maps() {	2333	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2334	[
1723	or return;	2335	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2336	utf8::decode $_;
1729	next if /\.pst$/;	2337	s/\.map$//; # TODO future compatibility hack
1730	next unless /^$PATH_SEP/o;	2338	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1731		2339	? ()
1732	push @paths, cf::map::normalise $_;	2340	: normalise $_
		2341	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2342	]
1734
1735	\@paths
1736	}	2343	}
1737
1738	package cf;
1739		2344
1740	=back	2345	=back
1741		2346
1742	=head3 cf::object	2347	=head3 cf::object
1743		2348
…		…
1747		2352
1748	=over 4	2353	=over 4
1749		2354
1750	=item $ob->inv_recursive	2355	=item $ob->inv_recursive
1751		2356
1752	Returns the inventory of the object _and_ their inventories, recursively.	2357	Returns the inventory of the object I<and> their inventories, recursively,
		2358	but I<not> the object itself.
1753		2359
1754	=cut	2360	=cut
1755		2361
1756	sub inv_recursive_;	2362	sub inv_recursive_;
1757	sub inv_recursive_ {	2363	sub inv_recursive_ {
…		…
1760		2366
1761	sub inv_recursive {	2367	sub inv_recursive {
1762	inv_recursive_ inv $_[0]	2368	inv_recursive_ inv $_[0]
1763	}	2369	}
1764		2370
		2371	=item $ref = $ob->ref
		2372
		2373	Creates and returns a persistent reference to an object that can be stored as a string.
		2374
		2375	=item $ob = cf::object::deref ($refstring)
		2376
		2377	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2378	even if the object actually exists. May block.
		2379
		2380	=cut
		2381
		2382	sub deref {
		2383	my ($ref) = @_;
		2384
		2385	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2386	my ($uuid, $name) = ($1, $2);
		2387	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2388	or return;
		2389	$pl->ob->uuid eq $uuid
		2390	or return;
		2391
		2392	$pl->ob
		2393	} else {
		2394	warn "$ref: cannot resolve object reference\n";
		2395	undef
		2396	}
		2397	}
		2398
1765	package cf;	2399	package cf;
1766		2400
1767	=back	2401	=back
1768		2402
1769	=head3 cf::object::player	2403	=head3 cf::object::player
…		…
1775	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2409	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1776	can be C<undef>. Does the right thing when the player is currently in a	2410	can be C<undef>. Does the right thing when the player is currently in a
1777	dialogue with the given NPC character.	2411	dialogue with the given NPC character.
1778		2412
1779	=cut	2413	=cut
		2414
		2415	our $SAY_CHANNEL = {
		2416	id => "say",
		2417	title => "Map",
		2418	reply => "say ",
		2419	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2420	};
		2421
		2422	our $CHAT_CHANNEL = {
		2423	id => "chat",
		2424	title => "Chat",
		2425	reply => "chat ",
		2426	tooltip => "Player chat and shouts, global to the server.",
		2427	};
1780		2428
1781	# rough implementation of a future "reply" method that works	2429	# rough implementation of a future "reply" method that works
1782	# with dialog boxes.	2430	# with dialog boxes.
1783	#TODO: the first argument must go, split into a $npc->reply_to ( method	2431	#TODO: the first argument must go, split into a $npc->reply_to ( method
1784	sub cf::object::player::reply($$$;$) {	2432	sub cf::object::player::reply($$$;$) {
…		…
1786		2434
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2436
1789	if ($self->{record_replies}) {	2437	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2439
1791	} else {	2440	} else {
		2441	my $pl = $self->contr;
		2442
		2443	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2444	my $dialog = $pl->{npc_dialog};
		2445	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2446
		2447	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2448	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2449	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2450	}
1794	}	2451	}
		2452	}
		2453
		2454	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2455
		2456	=cut
		2457
		2458	sub cf::object::send_msg {
		2459	my $pl = shift->contr
		2460	or return;
		2461	$pl->send_msg (@_);
1795	}	2462	}
1796		2463
1797	=item $player_object->may ("access")	2464	=item $player_object->may ("access")
1798		2465
1799	Returns wether the given player is authorized to access resource "access"	2466	Returns wether the given player is authorized to access resource "access"
…		…
1812		2479
1813	=item $player_object->enter_link	2480	=item $player_object->enter_link
1814		2481
1815	Freezes the player and moves him/her to a special map (C<{link}>).	2482	Freezes the player and moves him/her to a special map (C<{link}>).
1816		2483
1817	The player should be reasonably safe there for short amounts of time. You	2484	The player should be reasonably safe there for short amounts of time (e.g.
1818	I<MUST> call C<leave_link> as soon as possible, though.	2485	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2486	though, as the palyer cannot control the character while it is on the link
		2487	map.
1819		2488
1820	Will never block.	2489	Will never block.
1821		2490
1822	=item $player_object->leave_link ($map, $x, $y)	2491	=item $player_object->leave_link ($map, $x, $y)
1823		2492
…		…
1846	$self->deactivate_recursive;	2515	$self->deactivate_recursive;
1847		2516
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2517	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2518
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2520	if $self->map && $self->map->{path} ne "{link}";
1852		2521
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2522	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2523	}
1855		2524
1856	sub cf::object::player::leave_link {	2525	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2526	my ($self, $map, $x, $y) = @_;
		2527
		2528	return unless $self->contr->active;
1858		2529
1859	my $link_pos = delete $self->{_link_pos};	2530	my $link_pos = delete $self->{_link_pos};
1860		2531
1861	unless ($map) {	2532	unless ($map) {
1862	# restore original map position	2533	# restore original map position
…		…
1876	# use -1 or undef as default coordinates, not 0, 0	2547	# use -1 or undef as default coordinates, not 0, 0
1877	($x, $y) = ($map->enter_x, $map->enter_y)	2548	($x, $y) = ($map->enter_x, $map->enter_y)
1878	if $x <=0 && $y <= 0;	2549	if $x <=0 && $y <= 0;
1879		2550
1880	$map->load;	2551	$map->load;
1881	$map->load_diag;	2552	$map->load_neighbours;
1882		2553
1883	return unless $self->contr->active;	2554	return unless $self->contr->active;
1884	$self->activate_recursive;
1885		2555
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2556	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2557	$self->enter_map ($map, $x, $y);
1888	}
1889		2558
1890	cf::player->attach (	2559	# only activate afterwards, to support waiting in hooks
1891	on_logout => sub {	2560	$self->activate_recursive;
1892	my ($pl) = @_;	2561	}
1893		2562
1894	# abort map switching before logout	2563	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	if ($pl->ob->{_link_pos}) {
1896	cf::sync_job {
1897	$pl->ob->leave_link
1898	};
1899	}
1900	},
1901	on_login => sub {
1902	my ($pl) = @_;
1903		2564
1904	# try to abort aborted map switching on player login :)	2565	Moves the player to the given map-path and coordinates by first freezing
1905	# should happen only on crashes	2566	her, loading and preparing them map, calling the provided $check callback
1906	if ($pl->ob->{_link_pos}) {	2567	that has to return the map if sucecssful, and then unfreezes the player on
1907	$pl->ob->enter_link;	2568	the new (success) or old (failed) map position. In either case, $done will
1908	(async {	2569	be called at the end of this process.
1909	$pl->ob->reply (undef,
1910	"There was an internal problem at your last logout, "
1911	. "the server will try to bring you to your intended destination in a second.",
1912	cf::NDI_RED);
1913	# we need this sleep as the login has a concurrent enter_exit running
1914	# and this sleep increases chances of the player not ending up in scorn
1915	Coro::Timer::sleep 1;
1916	$pl->ob->leave_link;
1917	})->prio (2);
1918	}
1919	},
1920	);
1921		2570
1922	=item $player_object->goto ($path, $x, $y)	2571	Note that $check will be called with a potentially non-loaded map, so if
		2572	it needs a loaded map it has to call C<< ->load >>.
1923		2573
1924	=cut	2574	=cut
		2575
		2576	our $GOTOGEN;
1925		2577
1926	sub cf::object::player::goto {	2578	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2579	my ($self, $path, $x, $y, $check, $done) = @_;
		2580
		2581	# do generation counting so two concurrent goto's will be executed in-order
		2582	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2583
1929	$self->enter_link;	2584	$self->enter_link;
1930		2585
1931	(async {	2586	(async {
		2587	$Coro::current->{desc} = "player::goto $path $x $y";
		2588
		2589	# *tag paths override both path and x|y
		2590	if ($path =~ /^\*(.*)$/) {
		2591	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2592	my $ob = $obs[rand @obs];
		2593
		2594	# see if we actually can go there
		2595	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2596	$ob = $obs[rand @obs];
		2597	} else {
		2598	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
		2600	# else put us there anyways for now #d#
		2601
		2602	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2603	} else {
		2604	($path, $x, $y) = (undef, undef, undef);
		2605	}
		2606	}
		2607
1932	my $map = eval {	2608	my $map = eval {
1933	my $map = cf::map::find $path;	2609	my $map = defined $path ? cf::map::find $path : undef;
		2610
		2611	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2612	$map = $map->customise_for ($self);
		2613	$map = $check->($map) if $check && $map;
		2614	} else {
		2615	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2616	}
		2617
1935	$map	2618	$map
		2619	};
		2620
		2621	if ($@) {
		2622	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2623	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2624	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2625
		2626	if ($gen == $self->{_goto_generation}) {
		2627	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2628	$self->leave_link ($map, $x, $y);
		2629	}
		2630
		2631	$done->() if $done;
1940	})->prio (1);	2632	})->prio (1);
1941	}	2633	}
1942		2634
1943	=item $player_object->enter_exit ($exit_object)	2635	=item $player_object->enter_exit ($exit_object)
1944		2636
…		…
1964	}	2656	}
1965		2657
1966	sub prepare_random_map {	2658	sub prepare_random_map {
1967	my ($exit) = @_;	2659	my ($exit) = @_;
1968		2660
1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
1970
1971	# all this does is basically replace the /! path by	2661	# all this does is basically replace the /! path by
1972	# a new random map path (?random/...) with a seed	2662	# a new random map path (?random/...) with a seed
1973	# that depends on the exit object	2663	# that depends on the exit object
1974		2664
1975	my $rmp = parse_random_map_params $exit->msg;	2665	my $rmp = parse_random_map_params $exit->msg;
…		…
1977	if ($exit->map) {	2667	if ($exit->map) {
1978	$rmp->{region} = $exit->region->name;	2668	$rmp->{region} = $exit->region->name;
1979	$rmp->{origin_map} = $exit->map->path;	2669	$rmp->{origin_map} = $exit->map->path;
1980	$rmp->{origin_x} = $exit->x;	2670	$rmp->{origin_x} = $exit->x;
1981	$rmp->{origin_y} = $exit->y;	2671	$rmp->{origin_y} = $exit->y;
		2672
		2673	$exit->map->touch;
1982	}	2674	}
1983		2675
1984	$rmp->{random_seed} ||= $exit->random_seed;	2676	$rmp->{random_seed} ||= $exit->random_seed;
1985		2677
1986	my $data = cf::to_json $rmp;	2678	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1987	my $md5 = Digest::MD5::md5_hex $data;	2679	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2680	my $meta = "$RANDOMDIR/$md5.meta";
1989		2681
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2682	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2683	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2684	undef $fh;
1993	aio_rename "$meta~", $meta;	2685	aio_rename "$meta~", $meta;
1994		2686
		2687	my $slaying = "?random/$md5";
		2688
		2689	if ($exit->valid) {
1995	$exit->slaying ("?random/$md5");	2690	$exit->slaying ("?random/$md5");
1996	$exit->msg (undef);	2691	$exit->msg (undef);
		2692	}
1997	}	2693	}
1998	}	2694	}
1999		2695
2000	sub cf::object::player::enter_exit {	2696	sub cf::object::player::enter_exit {
2001	my ($self, $exit) = @_;	2697	my ($self, $exit) = @_;
2002		2698
2003	return unless $self->type == cf::PLAYER;	2699	return unless $self->type == cf::PLAYER;
2004		2700
2005	if ($exit->slaying eq "/!") {
2006	#TODO: this should de-fi-ni-te-ly not be a sync-job
2007	# the problem is that $exit might not survive long enough
2008	# so it needs to be done right now, right here
2009	cf::sync_job { prepare_random_map $exit };
2010	}
2011
2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2013	my $hp = $exit->stats->hp;
2014	my $sp = $exit->stats->sp;
2015
2016	$self->enter_link;	2701	$self->enter_link;
2017		2702
2018	(async {	2703	(async {
2019	$self->deactivate_recursive; # just to be sure	2704	$Coro::current->{desc} = "enter_exit";
		2705
2020	unless (eval {	2706	unless (eval {
		2707	$self->deactivate_recursive; # just to be sure
		2708
		2709	# random map handling
		2710	{
		2711	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2712
		2713	prepare_random_map $exit
		2714	if $exit->slaying eq "/!";
		2715	}
		2716
		2717	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2718	my $x = $exit->stats->hp;
		2719	my $y = $exit->stats->sp;
		2720
2021	$self->goto ($slaying, $hp, $sp);	2721	$self->goto ($map, $x, $y);
2022		2722
		2723	# if exit is damned, update players death & WoR home-position
		2724	$self->contr->savebed ($map, $x, $y)
		2725	if $exit->flag (cf::FLAG_DAMNED);
		2726
2023	1;	2727	1
2024	}) {	2728	}) {
2025	$self->message ("Something went wrong deep within the crossfire server. "	2729	$self->message ("Something went wrong deep within the deliantra server. "
2026	. "I'll try to bring you back to the map you were before. "	2730	. "I'll try to bring you back to the map you were before. "
2027	. "Please report this to the dungeon master!",	2731	. "Please report this to the dungeon master!",
2028	cf::NDI_UNIQUE | cf::NDI_RED);	2732	cf::NDI_UNIQUE | cf::NDI_RED);
2029		2733
2030	warn "ERROR in enter_exit: $@";	2734	warn "ERROR in enter_exit: $@";
…		…
2049		2753
2050	utf8::encode $text;	2754	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2755	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2756	}
2053		2757
		2758	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2759
		2760	Send a drawinfo or msg packet to the client, formatting the msg for the
		2761	client if neccessary. C<$type> should be a string identifying the type of
		2762	the message, with C<log> being the default. If C<$color> is negative, suppress
		2763	the message unless the client supports the msg packet.
		2764
		2765	=cut
		2766
		2767	# non-persistent channels (usually the info channel)
		2768	our %CHANNEL = (
		2769	"c/identify" => {
		2770	id => "infobox",
		2771	title => "Identify",
		2772	reply => undef,
		2773	tooltip => "Items recently identified",
		2774	},
		2775	"c/examine" => {
		2776	id => "infobox",
		2777	title => "Examine",
		2778	reply => undef,
		2779	tooltip => "Signs and other items you examined",
		2780	},
		2781	"c/book" => {
		2782	id => "infobox",
		2783	title => "Book",
		2784	reply => undef,
		2785	tooltip => "The contents of a note or book",
		2786	},
		2787	"c/lookat" => {
		2788	id => "infobox",
		2789	title => "Look",
		2790	reply => undef,
		2791	tooltip => "What you saw there",
		2792	},
		2793	"c/who" => {
		2794	id => "infobox",
		2795	title => "Players",
		2796	reply => undef,
		2797	tooltip => "Shows players who are currently online",
		2798	},
		2799	"c/body" => {
		2800	id => "infobox",
		2801	title => "Body Parts",
		2802	reply => undef,
		2803	tooltip => "Shows which body parts you posess and are available",
		2804	},
		2805	"c/statistics" => {
		2806	id => "infobox",
		2807	title => "Statistics",
		2808	reply => undef,
		2809	tooltip => "Shows your primary statistics",
		2810	},
		2811	"c/skills" => {
		2812	id => "infobox",
		2813	title => "Skills",
		2814	reply => undef,
		2815	tooltip => "Shows your experience per skill and item power",
		2816	},
		2817	"c/shopitems" => {
		2818	id => "infobox",
		2819	title => "Shop Items",
		2820	reply => undef,
		2821	tooltip => "Shows the items currently for sale in this shop",
		2822	},
		2823	"c/resistances" => {
		2824	id => "infobox",
		2825	title => "Resistances",
		2826	reply => undef,
		2827	tooltip => "Shows your resistances",
		2828	},
		2829	"c/pets" => {
		2830	id => "infobox",
		2831	title => "Pets",
		2832	reply => undef,
		2833	tooltip => "Shows information abotu your pets/a specific pet",
		2834	},
		2835	"c/perceiveself" => {
		2836	id => "infobox",
		2837	title => "Perceive Self",
		2838	reply => undef,
		2839	tooltip => "You gained detailed knowledge about yourself",
		2840	},
		2841	"c/uptime" => {
		2842	id => "infobox",
		2843	title => "Uptime",
		2844	reply => undef,
		2845	tooltip => "How long the server has been running since last restart",
		2846	},
		2847	"c/mapinfo" => {
		2848	id => "infobox",
		2849	title => "Map Info",
		2850	reply => undef,
		2851	tooltip => "Information related to the maps",
		2852	},
		2853	"c/party" => {
		2854	id => "party",
		2855	title => "Party",
		2856	reply => "gsay ",
		2857	tooltip => "Messages and chat related to your party",
		2858	},
		2859	"c/death" => {
		2860	id => "death",
		2861	title => "Death",
		2862	reply => undef,
		2863	tooltip => "Reason for and more info about your most recent death",
		2864	},
		2865	"c/say" => $SAY_CHANNEL,
		2866	"c/chat" => $CHAT_CHANNEL,
		2867	);
		2868
		2869	sub cf::client::send_msg {
		2870	my ($self, $channel, $msg, $color, @extra) = @_;
		2871
		2872	$msg = $self->pl->expand_cfpod ($msg)
		2873	unless $color & cf::NDI_VERBATIM;
		2874
		2875	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2876
		2877	# check predefined channels, for the benefit of C
		2878	if ($CHANNEL{$channel}) {
		2879	$channel = $CHANNEL{$channel};
		2880
		2881	$self->ext_msg (channel_info => $channel);
		2882	$channel = $channel->{id};
		2883
		2884	} elsif (ref $channel) {
		2885	# send meta info to client, if not yet sent
		2886	unless (exists $self->{channel}{$channel->{id}}) {
		2887	$self->{channel}{$channel->{id}} = $channel;
		2888	$self->ext_msg (channel_info => $channel);
		2889	}
		2890
		2891	$channel = $channel->{id};
		2892	}
		2893
		2894	return unless @extra || length $msg;
		2895
		2896	# default colour, mask it out
		2897	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2898	if $color & cf::NDI_DEF;
		2899
		2900	my $pkt = "msg "
		2901	. $self->{json_coder}->encode (
		2902	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2903	);
		2904
		2905	# try lzf for large packets
		2906	$pkt = "lzf " . Compress::LZF::compress $pkt
		2907	if 1024 <= length $pkt and $self->{can_lzf};
		2908
		2909	# split very large packets
		2910	if (8192 < length $pkt and $self->{can_lzf}) {
		2911	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2912	$pkt = "frag";
		2913	}
		2914
		2915	$self->send_packet ($pkt);
		2916	}
		2917
2054	=item $client->ext_event ($type, %msg)	2918	=item $client->ext_msg ($type, @msg)
2055		2919
2056	Sends an exti event to the client.	2920	Sends an ext event to the client.
2057		2921
2058	=cut	2922	=cut
2059		2923
2060	sub cf::client::ext_event($$%) {	2924	sub cf::client::ext_msg($$@) {
2061	my ($self, $type, %msg) = @_;	2925	my ($self, $type, @msg) = @_;
2062		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2929	} elsif ($self->extcmd == 1) { # TODO: remove
2063	$msg{msgtype} = "event_$type";	2930	push @msg, msgtype => "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	2931	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2932	}
		2933	}
		2934
		2935	=item $client->ext_reply ($msgid, @msg)
		2936
		2937	Sends an ext reply to the client.
		2938
		2939	=cut
		2940
		2941	sub cf::client::ext_reply($$@) {
		2942	my ($self, $id, @msg) = @_;
		2943
		2944	if ($self->extcmd == 2) {
		2945	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2946	} elsif ($self->extcmd == 1) {
		2947	#TODO: version 1, remove
		2948	unshift @msg, msgtype => "reply", msgid => $id;
		2949	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2950	}
2065	}	2951	}
2066		2952
2067	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
2068		2954
2069	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
2070	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2071	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		2958
2073	Queries can fail, so check the return code. Or don't, as queries will become	2959	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	2960	become reliable at some point in the future.
2075		2961
2076	=cut	2962	=cut
2077		2963
2078	sub cf::client::query {	2964	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	2973	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		2975
2090	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
2092	}	2980	}
2093		2981
2094	cf::client->attach (	2982	cf::client->attach (
		2983	on_connect => sub {
		2984	my ($ns) = @_;
		2985
		2986	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2987	},
2095	on_reply => sub {	2988	on_reply => sub {
2096	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
2097		2990
2098	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
2099	# get handled first	2992	# get handled first
…		…
2111	} else {	3004	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	3006	}
2114	}	3007	}
2115	},	3008	},
		3009	on_exticmd => sub {
		3010	my ($ns, $buf) = @_;
		3011
		3012	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3013
		3014	if (ref $msg) {
		3015	my ($type, $reply, @payload) =
		3016	"ARRAY" eq ref $msg
		3017	? @$msg
		3018	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3019
		3020	my @reply;
		3021
		3022	if (my $cb = $EXTICMD{$type}) {
		3023	@reply = $cb->($ns, @payload);
		3024	}
		3025
		3026	$ns->ext_reply ($reply, @reply)
		3027	if $reply;
		3028
		3029	} else {
		3030	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3031	}
		3032
		3033	cf::override;
		3034	},
2116	);	3035	);
2117		3036
2118	=item $client->async (\&cb)	3037	=item $client->async (\&cb)
2119		3038
2120	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
…		…
2161	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
2162	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
2163		3082
2164	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
2165		3084
2166	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3085	$safe->permit_only (Opcode::opset qw(
		3086	:base_core :base_mem :base_orig :base_math
		3087	grepstart grepwhile mapstart mapwhile
		3088	sort time
		3089	));
2167		3090
2168	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
2169		3092
2170	=pod	3093	=pod
2171		3094
2172	The following functions and methods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
2173		3096
2174	cf::object contr pay_amount pay_player map	3097	cf::object
		3098	contr pay_amount pay_player map x y force_find force_add destroy
		3099	insert remove name archname title slaying race decrease split
		3100	value
		3101
2175	cf::object::player player	3102	cf::object::player
2176	cf::player peaceful	3103	player
2177	cf::map trigger	3104
		3105	cf::player
		3106	peaceful
		3107
		3108	cf::map
		3109	trigger
2178		3110
2179	=cut	3111	=cut
2180		3112
2181	for (	3113	for (
2182	["cf::object" => qw(contr pay_amount pay_player map)],	3114	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3115	insert remove inv nrof name archname title slaying race
		3116	decrease split destroy change_exp value msg lore send_msg)],
2183	["cf::object::player" => qw(player)],	3117	["cf::object::player" => qw(player)],
2184	["cf::player" => qw(peaceful)],	3118	["cf::player" => qw(peaceful send_msg)],
2185	["cf::map" => qw(trigger)],	3119	["cf::map" => qw(trigger)],
2186	) {	3120	) {
2187	no strict 'refs';	3121	no strict 'refs';
2188	my ($pkg, @funs) = @$_;	3122	my ($pkg, @funs) = @$_;
2189	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2206	my ($code, %vars) = @_;	3140	my ($code, %vars) = @_;
2207		3141
2208	my $qcode = $code;	3142	my $qcode = $code;
2209	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3143	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2210	$qcode =~ s/\n/\\n/g;	3144	$qcode =~ s/\n/\\n/g;
		3145
		3146	%vars = (_dummy => 0) unless %vars;
2211		3147
2212	local $_;	3148	local $_;
2213	local @safe::cf::_safe_eval_args = values %vars;	3149	local @safe::cf::_safe_eval_args = values %vars;
2214		3150
2215	my $eval =	3151	my $eval =
…		…
2258	=back	3194	=back
2259		3195
2260	=cut	3196	=cut
2261		3197
2262	#############################################################################	3198	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$family> should best start with the name of the extension
2271	using it, it should be unique.
2272
2273	=over 4
2274
2275	=item $value = cf::db_get $family => $key
2276
2277	Returns a single value from the database.
2278
2279	=item cf::db_put $family => $key => $value
2280
2281	Stores the given C<$value> in the family.
2282
2283	=cut
2284
2285	our $DB;
2286
2287	sub db_init {
2288	unless ($DB) {
2289	$DB = BDB::db_create $DB_ENV;
2290
2291	cf::sync_job {
2292	eval {
2293	$DB->set_flags (BDB::CHKSUM);
2294
2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2297	cf::cleanup "db_open(db): $!" if $!;
2298	};
2299	cf::cleanup "db_open(db): $@" if $@;
2300	};
2301
2302	my $path = cf::localdir . "/database.pst";
2303	if (stat $path) {
2304	cf::sync_job {
2305	my $pst = Storable::retrieve $path;
2306
2307	cf::db_put (board => data => $pst->{board});
2308	cf::db_put (guildrules => data => $pst->{guildrules});
2309	cf::db_put (rent => balance => $pst->{rent}{balance});
2310	BDB::db_env_txn_checkpoint $DB_ENV;
2311
2312	unlink $path;
2313	};
2314	}
2315	}
2316	}
2317
2318	sub db_get($$) {
2319	my $key = "$_[0]/$_[1]";
2320
2321	cf::sync_job {
2322	BDB::db_get $DB, undef, $key, my $data;
2323
2324	$! ? ()
2325	: Compress::LZF::sthaw $data
2326	}
2327	}
2328
2329	sub db_put($$$) {
2330	BDB::dbreq_pri 4;
2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2332	}
2333
2334	#############################################################################
2335	# the server's init and main functions	3199	# the server's init and main functions
2336		3200
2337	sub load_facedata($) {	3201	sub load_facedata($) {
2338	my ($path) = @_;	3202	my ($path) = @_;
		3203
		3204	# HACK to clear player env face cache, we need some signal framework
		3205	# for this (global event?)
		3206	%ext::player_env::MUSIC_FACE_CACHE = ();
		3207
		3208	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2339		3209
2340	warn "loading facedata from $path\n";	3210	warn "loading facedata from $path\n";
2341		3211
2342	my $facedata;	3212	my $facedata;
2343	0 < aio_load $path, $facedata	3213	0 < aio_load $path, $facedata
…		…
2346	$facedata = Coro::Storable::thaw $facedata;	3216	$facedata = Coro::Storable::thaw $facedata;
2347		3217
2348	$facedata->{version} == 2	3218	$facedata->{version} == 2
2349	or cf::cleanup "$path: version mismatch, cannot proceed.";	3219	or cf::cleanup "$path: version mismatch, cannot proceed.";
2350		3220
		3221	# patch in the exptable
		3222	$facedata->{resource}{"res/exp_table"} = {
		3223	type => FT_RSRC,
		3224	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3225	};
		3226	cf::cede_to_tick;
		3227
2351	{	3228	{
2352	my $faces = $facedata->{faceinfo};	3229	my $faces = $facedata->{faceinfo};
2353		3230
2354	while (my ($face, $info) = each %$faces) {	3231	while (my ($face, $info) = each %$faces) {
2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3232	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3233
2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3234	cf::face::set_visibility $idx, $info->{visibility};
		3235	cf::face::set_magicmap $idx, $info->{magicmap};
2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3236	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3237	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2359	Coro::cede;	3238
		3239	cf::cede_to_tick;
2360	}	3240	}
2361		3241
2362	while (my ($face, $info) = each %$faces) {	3242	while (my ($face, $info) = each %$faces) {
2363	next unless $info->{smooth};	3243	next unless $info->{smooth};
		3244
2364	my $idx = cf::face::find $face	3245	my $idx = cf::face::find $face
2365	or next;	3246	or next;
		3247
2366	if (my $smooth = cf::face::find $info->{smooth}) {	3248	if (my $smooth = cf::face::find $info->{smooth}) {
		3249	cf::face::set_smooth $idx, $smooth;
2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3250	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2368	} else {	3251	} else {
2369	warn "smooth face '$info->{smooth}' not found for face '$face'";	3252	warn "smooth face '$info->{smooth}' not found for face '$face'";
2370	}	3253	}
2371	Coro::cede;	3254
		3255	cf::cede_to_tick;
2372	}	3256	}
2373	}	3257	}
2374		3258
2375	{	3259	{
2376	my $anims = $facedata->{animinfo};	3260	my $anims = $facedata->{animinfo};
2377		3261
2378	while (my ($anim, $info) = each %$anims) {	3262	while (my ($anim, $info) = each %$anims) {
2379	cf::anim::set $anim, $info->{frames}, $info->{facings};	3263	cf::anim::set $anim, $info->{frames}, $info->{facings};
2380	Coro::cede;	3264	cf::cede_to_tick;
2381	}	3265	}
2382		3266
2383	cf::anim::invalidate_all; # d'oh	3267	cf::anim::invalidate_all; # d'oh
2384	}	3268	}
2385		3269
		3270	{
		3271	# TODO: for gcfclient pleasure, we should give resources
		3272	# that gcfclient doesn't grok a >10000 face index.
		3273	my $res = $facedata->{resource};
		3274
		3275	while (my ($name, $info) = each %$res) {
		3276	if (defined $info->{type}) {
		3277	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3278	my $data;
		3279
		3280	if ($info->{type} & 1) {
		3281	# prepend meta info
		3282
		3283	my $meta = $enc->encode ({
		3284	name => $name,
		3285	%{ $info->{meta} || {} },
		3286	});
		3287
		3288	$data = pack "(w/a*)*", $meta, $info->{data};
		3289	} else {
		3290	$data = $info->{data};
		3291	}
		3292
		3293	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3294	cf::face::set_type $idx, $info->{type};
		3295	} else {
		3296	$RESOURCE{$name} = $info;
		3297	}
		3298
		3299	cf::cede_to_tick;
		3300	}
		3301	}
		3302
		3303	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3304
2386	1	3305	1
2387	}	3306	}
2388		3307
		3308	cf::global->attach (on_resource_update => sub {
		3309	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3310	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3311
		3312	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3313	my $sound = $soundconf->{compat}[$_]
		3314	or next;
		3315
		3316	my $face = cf::face::find "sound/$sound->[1]";
		3317	cf::sound::set $sound->[0] => $face;
		3318	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3319	}
		3320
		3321	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3322	my $face = cf::face::find "sound/$v";
		3323	cf::sound::set $k => $face;
		3324	}
		3325	}
		3326	});
		3327
		3328	register_exticmd fx_want => sub {
		3329	my ($ns, $want) = @_;
		3330
		3331	while (my ($k, $v) = each %$want) {
		3332	$ns->fx_want ($k, $v);
		3333	}
		3334	};
		3335
		3336	sub load_resource_file($) {
		3337	my $guard = lock_acquire "load_resource_file";
		3338
		3339	my $status = load_resource_file_ $_[0];
		3340	get_slot 0.1, 100;
		3341	cf::arch::commit_load;
		3342
		3343	$status
		3344	}
		3345
		3346	sub reload_regions {
		3347	# HACK to clear player env face cache, we need some signal framework
		3348	# for this (global event?)
		3349	%ext::player_env::MUSIC_FACE_CACHE = ();
		3350
		3351	load_resource_file "$MAPDIR/regions"
		3352	or die "unable to load regions file\n";
		3353
		3354	for (cf::region::list) {
		3355	$_->{match} = qr/$_->{match}/
		3356	if exists $_->{match};
		3357	}
		3358	}
		3359
2389	sub reload_facedata {	3360	sub reload_facedata {
2390	load_facedata sprintf "%s/facedata", cf::datadir	3361	load_facedata "$DATADIR/facedata"
2391	or die "unable to load facedata\n";	3362	or die "unable to load facedata\n";
2392	}	3363	}
2393		3364
2394	sub reload_regions {
2395	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2396	or die "unable to load regions file\n";
2397	}
2398
2399	sub reload_archetypes {	3365	sub reload_archetypes {
2400	load_archetype_file sprintf "%s/archetypes", cf::datadir	3366	load_resource_file "$DATADIR/archetypes"
2401	or die "unable to load archetypes\n";	3367	or die "unable to load archetypes\n";
2402	}	3368	}
2403		3369
2404	sub reload_treasures {	3370	sub reload_treasures {
2405	load_resource_file sprintf "%s/treasures", cf::datadir	3371	load_resource_file "$DATADIR/treasures"
2406	or die "unable to load treasurelists\n";	3372	or die "unable to load treasurelists\n";
2407	}	3373	}
2408		3374
2409	sub reload_resources {	3375	sub reload_resources {
2410	warn "reloading resource files...\n";	3376	warn "reloading resource files...\n";
2411		3377
2412	reload_regions;
2413	reload_facedata;	3378	reload_facedata;
2414	reload_archetypes;	3379	reload_archetypes;
		3380	reload_regions;
2415	reload_treasures;	3381	reload_treasures;
2416		3382
2417	warn "finished reloading resource files\n";	3383	warn "finished reloading resource files\n";
2418	}	3384	}
2419		3385
2420	sub init {	3386	sub reload_config {
2421	reload_resources;
2422	}
2423
2424	sub cfg_load {
2425	open my $fh, "<:utf8", cf::confdir . "/config"	3387	open my $fh, "<:utf8", "$CONFDIR/config"
2426	or return;	3388	or return;
2427		3389
2428	local $/;	3390	local $/;
2429	*CFG = YAML::Syck::Load <$fh>;	3391	*CFG = YAML::Load <$fh>;
2430		3392
2431	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3393	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2432		3394
2433	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3395	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2434	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3396	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2440	};	3402	};
2441	warn $@ if $@;	3403	warn $@ if $@;
2442	}	3404	}
2443	}	3405	}
2444		3406
		3407	sub pidfile() {
		3408	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3409	or die "$PIDFILE: $!";
		3410	flock $fh, &Fcntl::LOCK_EX
		3411	or die "$PIDFILE: flock: $!";
		3412	$fh
		3413	}
		3414
		3415	# make sure only one server instance is running at any one time
		3416	sub atomic {
		3417	my $fh = pidfile;
		3418
		3419	my $pid = <$fh>;
		3420	kill 9, $pid if $pid > 0;
		3421
		3422	seek $fh, 0, 0;
		3423	print $fh $$;
		3424	}
		3425
		3426	sub main_loop {
		3427	warn "EV::loop starting\n";
		3428	if (1) {
		3429	EV::loop;
		3430	}
		3431	warn "EV::loop returned\n";
		3432	goto &main_loop unless $REALLY_UNLOOP;
		3433	}
		3434
2445	sub main {	3435	sub main {
		3436	cf::init_globals; # initialise logging
		3437
		3438	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3439	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3440	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3441	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3442
		3443	cf::init_experience;
		3444	cf::init_anim;
		3445	cf::init_attackmess;
		3446	cf::init_dynamic;
		3447
		3448	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3449
2446	# we must not ever block the main coroutine	3450	# we must not ever block the main coroutine
2447	local $Coro::idle = sub {	3451	local $Coro::idle = sub {
2448	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3452	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2449	(async {	3453	(async {
2450	Event::one_event;	3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
2451	})->prio (Coro::PRIO_MAX);	3456	})->prio (Coro::PRIO_MAX);
2452	};	3457	};
2453		3458
2454	cfg_load;	3459	evthread_start IO::AIO::poll_fileno;
		3460
		3461	cf::sync_job {
		3462	reload_resources;
		3463	reload_config;
2455	db_init;	3464	db_init;
		3465
		3466	cf::load_settings;
		3467	cf::load_materials;
		3468	cf::init_uuid;
		3469	cf::init_signals;
		3470	cf::init_commands;
		3471	cf::init_skills;
		3472
		3473	cf::init_beforeplay;
		3474
		3475	atomic;
		3476
2456	load_extensions;	3477	load_extensions;
2457		3478
2458	$TICK_WATCHER->start;	3479	utime time, time, $RUNTIMEFILE;
2459	Event::loop;	3480
		3481	# no (long-running) fork's whatsoever before this point(!)
		3482	use POSIX ();
		3483	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3484
		3485	(pop @POST_INIT)->(0) while @POST_INIT;
		3486	};
		3487
		3488	main_loop;
2460	}	3489	}
2461		3490
2462	#############################################################################	3491	#############################################################################
2463	# initialisation and cleanup	3492	# initialisation and cleanup
2464		3493
2465	# install some emergency cleanup handlers	3494	# install some emergency cleanup handlers
2466	BEGIN {	3495	BEGIN {
		3496	our %SIGWATCHER = ();
2467	for my $signal (qw(INT HUP TERM)) {	3497	for my $signal (qw(INT HUP TERM)) {
2468	Event->signal (	3498	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2469	reentrant => 0,
2470	data => WF_AUTOCANCEL,
2471	signal => $signal,
2472	prio => 0,
2473	cb => sub {
2474	cf::cleanup "SIG$signal";	3499	cf::cleanup "SIG$signal";
2475	},
2476	);	3500	};
		3501	}
		3502	}
		3503
		3504	sub write_runtime_sync {
		3505	# first touch the runtime file to show we are still running:
		3506	# the fsync below can take a very very long time.
		3507
		3508	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3509
		3510	my $guard = cf::lock_acquire "write_runtime";
		3511
		3512	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3513	or return;
		3514
		3515	my $value = $cf::RUNTIME + 90 + 10;
		3516	# 10 is the runtime save interval, for a monotonic clock
		3517	# 60 allows for the watchdog to kill the server.
		3518
		3519	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3520	and return;
		3521
		3522	# always fsync - this file is important
		3523	aio_fsync $fh
		3524	and return;
		3525
		3526	# touch it again to show we are up-to-date
		3527	aio_utime $fh, undef, undef;
		3528
		3529	close $fh
		3530	or return;
		3531
		3532	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3533	and return;
		3534
		3535	warn "runtime file written.\n";
		3536
2477	}	3537	1
		3538	}
		3539
		3540	our $uuid_lock;
		3541	our $uuid_skip;
		3542
		3543	sub write_uuid_sync($) {
		3544	$uuid_skip ||= $_[0];
		3545
		3546	return if $uuid_lock;
		3547	local $uuid_lock = 1;
		3548
		3549	my $uuid = "$LOCALDIR/uuid";
		3550
		3551	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3552	or return;
		3553
		3554	my $value = uuid_seq uuid_cur;
		3555
		3556	unless ($value) {
		3557	warn "cowardly refusing to write zero uuid value!\n";
		3558	return;
		3559	}
		3560
		3561	my $value = uuid_str $value + $uuid_skip;
		3562	$uuid_skip = 0;
		3563
		3564	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3565	and return;
		3566
		3567	# always fsync - this file is important
		3568	aio_fsync $fh
		3569	and return;
		3570
		3571	close $fh
		3572	or return;
		3573
		3574	aio_rename "$uuid~", $uuid
		3575	and return;
		3576
		3577	warn "uuid file written ($value).\n";
		3578
		3579	1
		3580
		3581	}
		3582
		3583	sub write_uuid($$) {
		3584	my ($skip, $sync) = @_;
		3585
		3586	$sync ? write_uuid_sync $skip
		3587	: async { write_uuid_sync $skip };
2478	}	3588	}
2479		3589
2480	sub emergency_save() {	3590	sub emergency_save() {
2481	my $freeze_guard = cf::freeze_mainloop;	3591	my $freeze_guard = cf::freeze_mainloop;
2482		3592
2483	warn "enter emergency perl save\n";	3593	warn "emergency_perl_save: enter\n";
2484		3594
2485	cf::sync_job {	3595	cf::sync_job {
		3596	# this is a trade-off: we want to be very quick here, so
		3597	# save all maps without fsync, and later call a global sync
		3598	# (which in turn might be very very slow)
		3599	local $USE_FSYNC = 0;
		3600
2486	# use a peculiar iteration method to avoid tripping on perl	3601	# use a peculiar iteration method to avoid tripping on perl
2487	# refcount bugs in for. also avoids problems with players	3602	# refcount bugs in for. also avoids problems with players
2488	# and maps saved/destroyed asynchronously.	3603	# and maps saved/destroyed asynchronously.
2489	warn "begin emergency player save\n";	3604	warn "emergency_perl_save: begin player save\n";
2490	for my $login (keys %cf::PLAYER) {	3605	for my $login (keys %cf::PLAYER) {
2491	my $pl = $cf::PLAYER{$login} or next;	3606	my $pl = $cf::PLAYER{$login} or next;
2492	$pl->valid or next;	3607	$pl->valid or next;
		3608	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2493	$pl->save;	3609	$pl->save;
2494	}	3610	}
2495	warn "end emergency player save\n";	3611	warn "emergency_perl_save: end player save\n";
2496		3612
2497	warn "begin emergency map save\n";	3613	warn "emergency_perl_save: begin map save\n";
2498	for my $path (keys %cf::MAP) {	3614	for my $path (keys %cf::MAP) {
2499	my $map = $cf::MAP{$path} or next;	3615	my $map = $cf::MAP{$path} or next;
2500	$map->valid or next;	3616	$map->valid or next;
2501	$map->save;	3617	$map->save;
2502	}	3618	}
2503	warn "end emergency map save\n";	3619	warn "emergency_perl_save: end map save\n";
2504		3620
2505	warn "begin emergency database checkpoint\n";	3621	warn "emergency_perl_save: begin database checkpoint\n";
2506	BDB::db_env_txn_checkpoint $DB_ENV;	3622	BDB::db_env_txn_checkpoint $DB_ENV;
2507	warn "end emergency database checkpoint\n";	3623	warn "emergency_perl_save: end database checkpoint\n";
		3624
		3625	warn "emergency_perl_save: begin write uuid\n";
		3626	write_uuid_sync 1;
		3627	warn "emergency_perl_save: end write uuid\n";
2508	};	3628	};
2509		3629
		3630	warn "emergency_perl_save: starting sync()\n";
		3631	IO::AIO::aio_sync sub {
		3632	warn "emergency_perl_save: finished sync()\n";
		3633	};
		3634
2510	warn "leave emergency perl save\n";	3635	warn "emergency_perl_save: leave\n";
2511	}	3636	}
2512		3637
2513	sub post_cleanup {	3638	sub post_cleanup {
2514	my ($make_core) = @_;	3639	my ($make_core) = @_;
2515		3640
2516	warn Carp::longmess "post_cleanup backtrace"	3641	warn Carp::longmess "post_cleanup backtrace"
2517	if $make_core;	3642	if $make_core;
		3643
		3644	my $fh = pidfile;
		3645	unlink $PIDFILE if <$fh> == $$;
		3646	}
		3647
		3648	# a safer delete_package, copied from Symbol
		3649	sub clear_package($) {
		3650	my $pkg = shift;
		3651
		3652	# expand to full symbol table name if needed
		3653	unless ($pkg =~ /^main::.*::$/) {
		3654	$pkg = "main$pkg" if $pkg =~ /^::/;
		3655	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3656	$pkg .= '::' unless $pkg =~ /::$/;
		3657	}
		3658
		3659	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3660	my $stem_symtab = *{$stem}{HASH};
		3661
		3662	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3663	or return;
		3664
		3665	# clear all symbols
		3666	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3667	for my $name (keys %$leaf_symtab) {
		3668	_gv_clear *{"$pkg$name"};
		3669	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3670	}
		3671	warn "cleared package $pkg\n";#d#
2518	}	3672	}
2519		3673
2520	sub do_reload_perl() {	3674	sub do_reload_perl() {
2521	# can/must only be called in main	3675	# can/must only be called in main
2522	if ($Coro::current != $Coro::main) {	3676	if ($Coro::current != $Coro::main) {
2523	warn "can only reload from main coroutine";	3677	warn "can only reload from main coroutine";
2524	return;	3678	return;
2525	}	3679	}
2526		3680
		3681	return if $RELOAD++;
		3682
		3683	my $t1 = EV::time;
		3684
		3685	while ($RELOAD) {
2527	warn "reloading...";	3686	warn "reloading...";
2528		3687
2529	warn "entering sync_job";	3688	warn "entering sync_job";
2530		3689
2531	cf::sync_job {	3690	cf::sync_job {
2532	cf::write_runtime; # external watchdog should not bark	3691	cf::write_runtime_sync; # external watchdog should not bark
2533	cf::emergency_save;	3692	cf::emergency_save;
2534	cf::write_runtime; # external watchdog should not bark	3693	cf::write_runtime_sync; # external watchdog should not bark
2535		3694
2536	warn "syncing database to disk";	3695	warn "syncing database to disk";
2537	BDB::db_env_txn_checkpoint $DB_ENV;	3696	BDB::db_env_txn_checkpoint $DB_ENV;
2538		3697
2539	# if anything goes wrong in here, we should simply crash as we already saved	3698	# if anything goes wrong in here, we should simply crash as we already saved
2540		3699
2541	warn "cancelling all WF_AUTOCANCEL watchers";
2542	for (Event::all_watchers) {
2543	$_->cancel if $_->data & WF_AUTOCANCEL;
2544	}
2545
2546	warn "flushing outstanding aio requests";	3700	warn "flushing outstanding aio requests";
2547	for (;;) {
2548	BDB::flush;
2549	IO::AIO::flush;
2550	Coro::cede;
2551	last unless IO::AIO::nreqs || BDB::nreqs;	3701	while (IO::AIO::nreqs || BDB::nreqs) {
2552	warn "iterate...";	3702	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2553	}
2554
2555	++$RELOAD;
2556
2557	warn "cancelling all extension coros";
2558	$_->cancel for values %EXT_CORO;
2559	%EXT_CORO = ();
2560
2561	warn "removing commands";
2562	%COMMAND = ();
2563
2564	warn "removing ext commands";
2565	%EXTCMD = ();
2566
2567	warn "unloading/nuking all extensions";
2568	for my $pkg (@EXTS) {
2569	warn "... unloading $pkg";
2570
2571	if (my $cb = $pkg->can ("unload")) {
2572	eval {
2573	$cb->($pkg);
2574	1
2575	} or warn "$pkg unloaded, but with errors: $@";
2576	}	3703	}
2577		3704
2578	warn "... nuking $pkg";	3705	warn "cancelling all extension coros";
2579	Symbol::delete_package $pkg;	3706	$_->cancel for values %EXT_CORO;
2580	}	3707	%EXT_CORO = ();
2581		3708
2582	warn "unloading all perl modules loaded from $LIBDIR";	3709	warn "removing commands";
2583	while (my ($k, $v) = each %INC) {	3710	%COMMAND = ();
2584	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2585		3711
		3712	warn "removing ext/exti commands";
		3713	%EXTCMD = ();
		3714	%EXTICMD = ();
		3715
		3716	warn "unloading/nuking all extensions";
		3717	for my $pkg (@EXTS) {
2586	warn "... unloading $k";	3718	warn "... unloading $pkg";
2587	delete $INC{$k};
2588		3719
2589	$k =~ s/\.pm$//;
2590	$k =~ s/\//::/g;
2591
2592	if (my $cb = $k->can ("unload_module")) {	3720	if (my $cb = $pkg->can ("unload")) {
		3721	eval {
2593	$cb->();	3722	$cb->($pkg);
		3723	1
		3724	} or warn "$pkg unloaded, but with errors: $@";
		3725	}
		3726
		3727	warn "... clearing $pkg";
		3728	clear_package $pkg;
2594	}	3729	}
2595		3730
2596	Symbol::delete_package $k;	3731	warn "unloading all perl modules loaded from $LIBDIR";
		3732	while (my ($k, $v) = each %INC) {
		3733	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3734
		3735	warn "... unloading $k";
		3736	delete $INC{$k};
		3737
		3738	$k =~ s/\.pm$//;
		3739	$k =~ s/\//::/g;
		3740
		3741	if (my $cb = $k->can ("unload_module")) {
		3742	$cb->();
		3743	}
		3744
		3745	clear_package $k;
2597	}	3746	}
2598		3747
2599	warn "getting rid of safe::, as good as possible";	3748	warn "getting rid of safe::, as good as possible";
2600	Symbol::delete_package "safe::$_"	3749	clear_package "safe::$_"
2601	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3750	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2602		3751
2603	warn "unloading cf.pm \"a bit\"";	3752	warn "unloading cf.pm \"a bit\"";
2604	delete $INC{"cf.pm"};	3753	delete $INC{"cf.pm"};
		3754	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2605		3755
2606	# don't, removes xs symbols, too,	3756	# don't, removes xs symbols, too,
2607	# and global variables created in xs	3757	# and global variables created in xs
2608	#Symbol::delete_package __PACKAGE__;	3758	#clear_package __PACKAGE__;
2609		3759
2610	warn "unload completed, starting to reload now";	3760	warn "unload completed, starting to reload now";
2611		3761
2612	warn "reloading cf.pm";	3762	warn "reloading cf.pm";
2613	require cf;	3763	require cf;
2614	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3764	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2615		3765
2616	warn "loading config and database again";	3766	warn "loading config and database again";
2617	cf::cfg_load;	3767	cf::reload_config;
2618		3768
2619	warn "loading extensions";	3769	warn "loading extensions";
2620	cf::load_extensions;	3770	cf::load_extensions;
2621		3771
		3772	if ($REATTACH_ON_RELOAD) {
2622	warn "reattaching attachments to objects/players";	3773	warn "reattaching attachments to objects/players";
2623	_global_reattach; # objects, sockets	3774	_global_reattach; # objects, sockets
2624	warn "reattaching attachments to maps";	3775	warn "reattaching attachments to maps";
2625	reattach $_ for values %MAP;	3776	reattach $_ for values %MAP;
2626	warn "reattaching attachments to players";	3777	warn "reattaching attachments to players";
2627	reattach $_ for values %PLAYER;	3778	reattach $_ for values %PLAYER;
		3779	}
2628		3780
		3781	warn "running post_init jobs";
		3782	(pop @POST_INIT)->(1) while @POST_INIT;
		3783
2629	warn "leaving sync_job";	3784	warn "leaving sync_job";
2630		3785
2631	1	3786	1
2632	} or do {	3787	} or do {
2633	warn $@;	3788	warn $@;
2634	warn "error while reloading, exiting.";	3789	cf::cleanup "error while reloading, exiting.";
2635	exit 1;
2636	};	3790	};
2637		3791
2638	warn "reloaded";	3792	warn "reloaded";
		3793	--$RELOAD;
		3794	}
		3795
		3796	$t1 = EV::time - $t1;
		3797	warn "reload completed in ${t1}s\n";
2639	};	3798	};
2640		3799
2641	our $RELOAD_WATCHER; # used only during reload	3800	our $RELOAD_WATCHER; # used only during reload
2642		3801
2643	sub reload_perl() {	3802	sub reload_perl() {
2644	# doing reload synchronously and two reloads happen back-to-back,	3803	# doing reload synchronously and two reloads happen back-to-back,
2645	# coro crashes during coro_state_free->destroy here.	3804	# coro crashes during coro_state_free->destroy here.
2646		3805
2647	$RELOAD_WATCHER ||= Event->timer (	3806	$RELOAD_WATCHER ||= cf::async {
2648	reentrant => 0,	3807	Coro::AIO::aio_wait cache_extensions;
2649	after => 0,	3808
2650	data => WF_AUTOCANCEL,	3809	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2651	cb => sub {
2652	do_reload_perl;	3810	do_reload_perl;
2653	undef $RELOAD_WATCHER;	3811	undef $RELOAD_WATCHER;
2654	},	3812	};
2655	);	3813	};
2656	}	3814	}
2657		3815
2658	register_command "reload" => sub {	3816	register_command "reload" => sub {
2659	my ($who, $arg) = @_;	3817	my ($who, $arg) = @_;
2660		3818
2661	if ($who->flag (FLAG_WIZ)) {	3819	if ($who->flag (FLAG_WIZ)) {
2662	$who->message ("reloading server.");	3820	$who->message ("reloading server.");
		3821	async {
		3822	$Coro::current->{desc} = "perl_reload";
2663	async { reload_perl };	3823	reload_perl;
		3824	};
2664	}	3825	}
2665	};	3826	};
2666		3827
2667	unshift @INC, $LIBDIR;	3828	unshift @INC, $LIBDIR;
2668		3829
…		…
2670		3831
2671	our @WAIT_FOR_TICK;	3832	our @WAIT_FOR_TICK;
2672	our @WAIT_FOR_TICK_BEGIN;	3833	our @WAIT_FOR_TICK_BEGIN;
2673		3834
2674	sub wait_for_tick {	3835	sub wait_for_tick {
2675	return unless $TICK_WATCHER->is_active;
2676	return if $Coro::current == $Coro::main;	3836	return if tick_inhibit || $Coro::current == $Coro::main;
2677		3837
2678	my $signal = new Coro::Signal;	3838	my $signal = new Coro::Signal;
2679	push @WAIT_FOR_TICK, $signal;	3839	push @WAIT_FOR_TICK, $signal;
2680	$signal->wait;	3840	$signal->wait;
2681	}	3841	}
2682		3842
2683	sub wait_for_tick_begin {	3843	sub wait_for_tick_begin {
2684	return unless $TICK_WATCHER->is_active;
2685	return if $Coro::current == $Coro::main;	3844	return if tick_inhibit || $Coro::current == $Coro::main;
2686		3845
2687	my $signal = new Coro::Signal;	3846	my $signal = new Coro::Signal;
2688	push @WAIT_FOR_TICK_BEGIN, $signal;	3847	push @WAIT_FOR_TICK_BEGIN, $signal;
2689	$signal->wait;	3848	$signal->wait;
2690	}	3849	}
2691		3850
2692	$TICK_WATCHER = Event->timer (	3851	sub tick {
2693	reentrant => 0,
2694	parked => 1,
2695	prio => 0,
2696	at => $NEXT_TICK || $TICK,
2697	data => WF_AUTOCANCEL,
2698	cb => sub {
2699	if ($Coro::current != $Coro::main) {	3852	if ($Coro::current != $Coro::main) {
2700	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2701	unless ++$bug_warning > 10;	3854	unless ++$bug_warning > 10;
2702	return;	3855	return;
2703	}	3856	}
2704		3857
2705	$NOW = Event::time;
2706
2707	cf::server_tick; # one server iteration	3858	cf::server_tick; # one server iteration
2708		3859
2709	$RUNTIME += $TICK;
2710	$NEXT_TICK += $TICK;
2711
2712	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3860	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2713	$NEXT_RUNTIME_WRITE = $NOW + 10;	3861	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2714	Coro::async_pool {	3862	Coro::async_pool {
		3863	$Coro::current->{desc} = "runtime saver";
2715	write_runtime	3864	write_runtime_sync
2716	or warn "ERROR: unable to write runtime file: $!";	3865	or warn "ERROR: unable to write runtime file: $!";
2717	};
2718	}	3866	};
		3867	}
2719		3868
2720	# my $AFTER = Event::time;
2721	# warn $AFTER - $NOW;#d#
2722
2723	# if we are delayed by four ticks or more, skip them all
2724	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2725
2726	$TICK_WATCHER->at ($NEXT_TICK);
2727	$TICK_WATCHER->start;
2728
2729	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3869	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2730	$sig->send;	3870	$sig->send;
2731	}	3871	}
2732	while (my $sig = shift @WAIT_FOR_TICK) {	3872	while (my $sig = shift @WAIT_FOR_TICK) {
2733	$sig->send;	3873	$sig->send;
2734	}
2735
2736	_post_tick;
2737	},	3874	}
2738	);	3875
		3876	$LOAD = ($NOW - $TICK_START) / $TICK;
		3877	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3878
		3879	if (0) {
		3880	if ($NEXT_TICK) {
		3881	my $jitter = $TICK_START - $NEXT_TICK;
		3882	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3883	warn "jitter $JITTER\n";#d#
		3884	}
		3885	}
		3886	}
2739		3887
2740	{	3888	{
2741	BDB::max_poll_time $TICK * 0.1;	3889	# configure BDB
2742	$BDB_POLL_WATCHER = Event->io (	3890
2743	reentrant => 0,
2744	fd => BDB::poll_fileno,
2745	poll => 'r',
2746	prio => 0,
2747	data => WF_AUTOCANCEL,
2748	cb => \&BDB::poll_cb,
2749	);
2750	BDB::min_parallel 8;	3891	BDB::min_parallel 8;
2751		3892	BDB::max_poll_reqs $TICK * 0.1;
2752	BDB::set_sync_prepare {	3893	$AnyEvent::BDB::WATCHER->priority (1);
2753	my $status;
2754	my $current = $Coro::current;
2755	(
2756	sub {
2757	$status = $!;
2758	$current->ready; undef $current;
2759	},
2760	sub {
2761	Coro::schedule while defined $current;
2762	$! = $status;
2763	},
2764	)
2765	};
2766		3894
2767	unless ($DB_ENV) {	3895	unless ($DB_ENV) {
2768	$DB_ENV = BDB::db_env_create;	3896	$DB_ENV = BDB::db_env_create;
		3897	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3898	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3899	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3900	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3901	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2769		3902
2770	cf::sync_job {	3903	cf::sync_job {
2771	eval {	3904	eval {
2772	BDB::db_env_open	3905	BDB::db_env_open
2773	$DB_ENV,	3906	$DB_ENV,
2774	$BDB_ENV_DIR,	3907	$BDBDIR,
2775	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3908	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2776	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3909	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2777	0666;	3910	0666;
2778		3911
2779	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3912	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2780
2781	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2782	$DB_ENV->set_lk_detect;
2783	};	3913	};
2784		3914
2785	cf::cleanup "db_env_open(db): $@" if $@;	3915	cf::cleanup "db_env_open(db): $@" if $@;
2786	};	3916	};
2787	}	3917	}
		3918
		3919	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3920	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3921	};
		3922	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3923	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3924	};
		3925	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3926	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3927	};
2788	}	3928	}
2789		3929
2790	{	3930	{
		3931	# configure IO::AIO
		3932
2791	IO::AIO::min_parallel 8;	3933	IO::AIO::min_parallel 8;
2792
2793	undef $Coro::AIO::WATCHER;
2794	IO::AIO::max_poll_time $TICK * 0.1;	3934	IO::AIO::max_poll_time $TICK * 0.1;
2795	$AIO_POLL_WATCHER = Event->io (	3935	undef $AnyEvent::AIO::WATCHER;
2796	reentrant => 0,
2797	data => WF_AUTOCANCEL,
2798	fd => IO::AIO::poll_fileno,
2799	poll => 'r',
2800	prio => 6,
2801	cb => \&IO::AIO::poll_cb,
2802	);
2803	}	3936	}
		3937
		3938	my $_log_backtrace;
		3939
		3940	sub _log_backtrace {
		3941	my ($msg, @addr) = @_;
		3942
		3943	$msg =~ s/\n//;
		3944
		3945	# limit the # of concurrent backtraces
		3946	if ($_log_backtrace < 2) {
		3947	++$_log_backtrace;
		3948	my $perl_bt = Carp::longmess $msg;
		3949	async {
		3950	$Coro::current->{desc} = "abt $msg";
		3951
		3952	my @bt = fork_call {
		3953	@addr = map { sprintf "%x", $_ } @addr;
		3954	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3955	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3956	or die "addr2line: $!";
		3957
		3958	my @funcs;
		3959	my @res = <$fh>;
		3960	chomp for @res;
		3961	while (@res) {
		3962	my ($func, $line) = splice @res, 0, 2, ();
		3963	push @funcs, "[$func] $line";
		3964	}
		3965
		3966	@funcs
		3967	};
		3968
		3969	LOG llevInfo, "[ABT] $perl_bt\n";
		3970	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3971	LOG llevInfo, "[ABT] $_\n" for @bt;
		3972	--$_log_backtrace;
		3973	};
		3974	} else {
		3975	LOG llevInfo, "[ABT] $msg\n";
		3976	LOG llevInfo, "[ABT] [suppressed]\n";
		3977	}
		3978	}
		3979
		3980	# load additional modules
		3981	require "cf/$_.pm" for @EXTRA_MODULES;
2804		3982
2805	END { cf::emergency_save }	3983	END { cf::emergency_save }
2806		3984
2807	1	3985	1
2808		3986

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