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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.209 by root, Mon Feb 12 01:25:55 2007 UTC vs.
Revision 1.479 by root, Thu Oct 8 05:04:27 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;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.5 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
20	use BDB ();	54	use BDB ();
21	use Data::Dumper;	55	use Data::Dumper;
22	use Digest::MD5;	56	use Digest::MD5;
23	use Fcntl;	57	use Fcntl;
		58	use YAML ();
24	use IO::AIO 2.32 ();	59	use IO::AIO ();
25	use YAML::Syck ();
26	use Time::HiRes;	60	use Time::HiRes;
27	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
28		63
		64	AnyEvent::detect;
		65
		66	# configure various modules to our taste
		67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		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";
29	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
30		76
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		79
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		81
40	our %COMMAND = ();	82	our %COMMAND = ();
41	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
42		84
43	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
47		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	92	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
50		95
51	our $TICK = MAX_TIME * 1e-6;	96	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	97	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	98	our $LIBDIR = "$DATADIR/ext";
54	our $WRITE_RUNTIME_WATCHER;	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;
		111
		112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	114	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
58		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	119	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod mapscript);
61		123
62	our %CFG;	124	our %CFG;
63		125
64	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
66		129
67	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	132	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		133
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $REALLY_UNLOOP; # never set to true, please :)
		146
79	binmode STDOUT;	147	binmode STDOUT;
80	binmode STDERR;	148	binmode STDERR;
81		149
82	# read virtual server time, if available	150	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
87	}	155	}
88		156
89	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	158
91	mkdir cf::localdir . "/" . cf::tmpdir;	159	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		161
96	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
97		163
98	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	}
99		173
100	#############################################################################	174	#############################################################################
101		175
102	=head2 GLOBAL VARIABLES	176	=head2 GLOBAL VARIABLES
103		177
…		…
110	=item $cf::RUNTIME	184	=item $cf::RUNTIME
111		185
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	186	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	187	every server tick.
114		188
115	=item $cf::LIBDIR	189	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		190	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		191	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		192
117	The perl library directory, where extensions and cf-specific modules can	193	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	194	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		195	unique-items directory, player file directory, random maps directory and
		196	database environment.
119		197
120	=item $cf::NOW	198	=item $cf::NOW
121		199
122	The time of the last (current) server tick.	200	The time of the last (current) server tick.
123		201
124	=item $cf::TICK	202	=item $cf::TICK
125		203
126	The interval between server ticks, in seconds.	204	The interval between server ticks, in seconds.
127		205
		206	=item $cf::LOADAVG
		207
		208	The current CPU load on the server (alpha-smoothed), as a value between 0
		209	(none) and 1 (overloaded), indicating how much time is spent on processing
		210	objects per tick. Healthy values are < 0.5.
		211
		212	=item $cf::LOAD
		213
		214	The raw value load value from the last tick.
		215
128	=item %cf::CFG	216	=item %cf::CFG
129		217
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	218	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	219	from wherever your confdir points to.
132		220
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	221	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		222
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	223	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	224	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	225	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.	226
		227	=item @cf::INVOKE_RESULTS
		228
		229	This array contains the results of the last C<invoke ()> call. When
		230	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		231	that call.
		232
		233	=item %cf::REFLECT
		234
		235	Contains, for each (C++) class name, a hash reference with information
		236	about object members (methods, scalars and arrays) and other metadata,
		237	which is useful for introspection.
139		238
140	=back	239	=back
141		240
142	=cut	241	=cut
143		242
144	BEGIN {	243	$Coro::State::WARNHOOK = sub {
145	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	244	my $msg = join "", @_;
147	utf8::encode $msg;
148		245
149	$msg .= "\n"	246	$msg .= "\n"
150	unless $msg =~ /\n$/;	247	unless $msg =~ /\n$/;
151		248
		249	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		250
152	LOG llevError, $msg;	251	LOG llevError, $msg;
153	};	252	};
154	}	253
		254	$Coro::State::DIEHOOK = sub {
		255	return unless $^S eq 0; # "eq", not "=="
		256
		257	warn Carp::longmess $_[0];
		258
		259	if ($Coro::current == $Coro::main) {#d#
		260	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		261	return;#d#
		262	}#d#
		263
		264	# kill coroutine otherwise
		265	Coro::terminate
		266	};
155		267
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	268	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	269	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	270	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	271	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	272	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		273	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	274	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		275
163	# we bless all objects into (empty) derived classes to force a method lookup	276	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	277	# within the Safe compartment.
165	for my $pkg (qw(	278	for my $pkg (qw(
166	cf::global cf::attachable	279	cf::global cf::attachable
167	cf::object cf::object::player	280	cf::object cf::object::player
168	cf::client cf::player	281	cf::client cf::player
169	cf::arch cf::living	282	cf::arch cf::living
		283	cf::map cf::mapspace
170	cf::map cf::party cf::region	284	cf::party cf::region
171	)) {	285	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	286	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	287	}
175		288
176	$Event::DIED = sub {	289	$EV::DIED = sub {
177	warn "error in event callback: @_";	290	warn "error in event callback: @_";
178	};	291	};
		292
		293	#############################################################################
179		294
180	=head2 UTILITY FUNCTIONS	295	=head2 UTILITY FUNCTIONS
181		296
182	=over 4	297	=over 4
183		298
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	317	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	318	$d
204	} || "[unable to dump $_[0]: '$@']";	319	} || "[unable to dump $_[0]: '$@']";
205	}	320	}
206		321
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	322	=item $ref = cf::decode_json $json
210		323
211	Converts a JSON string into the corresponding perl data structure.	324	Converts a JSON string into the corresponding perl data structure.
212		325
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	326	=item $json = cf::encode_json $ref
221		327
222	Converts a perl data structure into its JSON representation.	328	Converts a perl data structure into its JSON representation.
223		329
224	=cut	330	=cut
225		331
226	sub to_json($) {	332	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	333
228	JSON::Syck::Dump $_[0]	334	sub encode_json($) { $json_coder->encode ($_[0]) }
		335	sub decode_json($) { $json_coder->decode ($_[0]) }
		336
		337	=item cf::post_init { BLOCK }
		338
		339	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		340	but I<before> the server starts ticking again.
		341
		342	The cdoeblock will have a single boolean argument to indicate whether this
		343	is a reload or not.
		344
		345	=cut
		346
		347	sub post_init(&) {
		348	push @POST_INIT, shift;
229	}	349	}
230		350
231	=item cf::lock_wait $string	351	=item cf::lock_wait $string
232		352
233	Wait until the given lock is available. See cf::lock_acquire.	353	Wait until the given lock is available. See cf::lock_acquire.
234		354
235	=item my $lock = cf::lock_acquire $string	355	=item my $lock = cf::lock_acquire $string
236		356
237	Wait until the given lock is available and then acquires it and returns	357	Wait until the given lock is available and then acquires it and returns
238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	358	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
239	for example when the coroutine gets canceled), the lock is automatically	359	for example when the coroutine gets canceled), the lock is automatically
240	returned.	360	returned.
241		361
		362	Locks are *not* recursive, locking from the same coro twice results in a
		363	deadlocked coro.
		364
242	Lock names should begin with a unique identifier (for example, cf::map::find	365	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	366	uses map_find and cf::map::load uses map_load).
244		367
245	=cut	368	=item $locked = cf::lock_active $string
246		369
247	our %LOCK;	370	Return true if the lock is currently active, i.e. somebody has locked it.
		371
		372	=cut
		373
		374	our $LOCKS = new Coro::SemaphoreSet;
248		375
249	sub lock_wait($) {	376	sub lock_wait($) {
250	my ($key) = @_;	377	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	378	}
258		379
259	sub lock_acquire($) {	380	sub lock_acquire($) {
260	my ($key) = @_;	381	$LOCKS->guard ($_[0])
		382	}
261		383
262	# wait, to be sure we are not locked	384	sub lock_active($) {
263	lock_wait $key;	385	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	386	}
272		387
273	sub freeze_mainloop {	388	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	389	tick_inhibit_inc;
275		390
276	my $guard = Coro::guard {	391	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	392	}
278	$WRITE_RUNTIME_WATCHER->start;	393
		394	=item cf::periodic $interval, $cb
		395
		396	Like EV::periodic, but randomly selects a starting point so that the actions
		397	get spread over timer.
		398
		399	=cut
		400
		401	sub periodic($$) {
		402	my ($interval, $cb) = @_;
		403
		404	my $start = rand List::Util::min 180, $interval;
		405
		406	EV::periodic $start, $interval, 0, $cb
		407	}
		408
		409	=item cf::get_slot $time[, $priority[, $name]]
		410
		411	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		412	This call blocks and returns only when you have at least C<$time> seconds
		413	of cpu time till the next tick. The slot is only valid till the next cede.
		414
		415	The optional C<$name> can be used to identify the job to run. It might be
		416	used for statistical purposes and should identify the same time-class.
		417
		418	Useful for short background jobs.
		419
		420	=cut
		421
		422	our @SLOT_QUEUE;
		423	our $SLOT_QUEUE;
		424
		425	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		426	$SLOT_QUEUE = Coro::async {
		427	$Coro::current->desc ("timeslot manager");
		428
		429	my $signal = new Coro::Signal;
		430
		431	while () {
		432	next_job:
		433	my $avail = cf::till_tick;
		434	if ($avail > 0.01) {
		435	for (0 .. $#SLOT_QUEUE) {
		436	if ($SLOT_QUEUE[$_][0] < $avail) {
		437	my $job = splice @SLOT_QUEUE, $_, 1, ();
		438	$job->[2]->send;
		439	Coro::cede;
		440	goto next_job;
		441	}
		442	}
		443	}
		444
		445	if (@SLOT_QUEUE) {
		446	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		447	push @cf::WAIT_FOR_TICK, $signal;
		448	$signal->wait;
		449	} else {
		450	Coro::schedule;
		451	}
279	};	452	}
280	$WRITE_RUNTIME_WATCHER->stop;	453	};
281	$TICK_WATCHER->stop;	454
282	$guard	455	sub get_slot($;$$) {
		456	return if tick_inhibit || $Coro::current == $Coro::main;
		457
		458	my ($time, $pri, $name) = @_;
		459
		460	$time = $TICK * .6 if $time > $TICK * .6;
		461	my $sig = new Coro::Signal;
		462
		463	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		464	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		465	$SLOT_QUEUE->ready;
		466	$sig->wait;
283	}	467	}
284		468
285	=item cf::async { BLOCK }	469	=item cf::async { BLOCK }
286		470
287	Currently the same as Coro::async_pool, meaning you cannot use	471	Currently the same as Coro::async_pool, meaning you cannot use
…		…
292		476
293	BEGIN { *async = \&Coro::async_pool }	477	BEGIN { *async = \&Coro::async_pool }
294		478
295	=item cf::sync_job { BLOCK }	479	=item cf::sync_job { BLOCK }
296		480
297	The design of crossfire+ requires that the main coro ($Coro::main) is	481	The design of Deliantra requires that the main coroutine ($Coro::main)
298	always able to handle events or runnable, as crossfire+ is only partly	482	is always able to handle events or runnable, as Deliantra is only
299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	483	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		484	acceptable.
300		485
301	If it must be done, put the blocking parts into C<sync_job>. This will run	486	If it must be done, put the blocking parts into C<sync_job>. This will run
302	the given BLOCK in another coroutine while waiting for the result. The	487	the given BLOCK in another coroutine while waiting for the result. The
303	server will be frozen during this time, so the block should either finish	488	server will be frozen during this time, so the block should either finish
304	fast or be very important.	489	fast or be very important.
…		…
307		492
308	sub sync_job(&) {	493	sub sync_job(&) {
309	my ($job) = @_;	494	my ($job) = @_;
310		495
311	if ($Coro::current == $Coro::main) {	496	if ($Coro::current == $Coro::main) {
		497	my $time = EV::time;
		498
312	# this is the main coro, too bad, we have to block	499	# this is the main coro, too bad, we have to block
313	# till the operation succeeds, freezing the server :/	500	# till the operation succeeds, freezing the server :/
314		501
315	# TODO: use suspend/resume instead	502	LOG llevError, Carp::longmess "sync job";#d#
316	# (but this is cancel-safe)	503
317	my $freeze_guard = freeze_mainloop;	504	my $freeze_guard = freeze_mainloop;
318		505
319	my $busy = 1;	506	my $busy = 1;
320	my @res;	507	my @res;
321		508
322	(async {	509	(async {
		510	$Coro::current->desc ("sync job coro");
323	@res = eval { $job->() };	511	@res = eval { $job->() };
324	warn $@ if $@;	512	warn $@ if $@;
325	undef $busy;	513	undef $busy;
326	})->prio (Coro::PRIO_MAX);	514	})->prio (Coro::PRIO_MAX);
327		515
328	while ($busy) {	516	while ($busy) {
329	Coro::cede or Event::one_event;	517	if (Coro::nready) {
		518	Coro::cede_notself;
		519	} else {
		520	EV::loop EV::LOOP_ONESHOT;
330	}	521	}
		522	}
		523
		524	my $time = EV::time - $time;
		525
		526	$TICK_START += $time; # do not account sync jobs to server load
331		527
332	wantarray ? @res : $res[0]	528	wantarray ? @res : $res[0]
333	} else {	529	} else {
334	# we are in another coroutine, how wonderful, everything just works	530	# we are in another coroutine, how wonderful, everything just works
335		531
…		…
355	$EXT_CORO{$coro+0} = $coro;	551	$EXT_CORO{$coro+0} = $coro;
356		552
357	$coro	553	$coro
358	}	554	}
359		555
360	sub write_runtime {	556	=item fork_call { }, $args
361	my $runtime = cf::localdir . "/runtime";
362		557
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	558	Executes the given code block with the given arguments in a seperate
364	or return;	559	process, returning the results. Everything must be serialisable with
		560	Coro::Storable. May, of course, block. Note that the executed sub may
		561	never block itself or use any form of event handling.
365		562
366	my $value = $cf::RUNTIME + 90 + 10;	563	=cut
367	# 10 is the runtime save interval, for a monotonic clock
368	# 60 allows for the watchdog to kill the server.
369		564
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	565	sub fork_call(&@) {
371	and return;	566	my ($cb, @args) = @_;
372		567
373	# always fsync - this file is important	568	# we seemingly have to make a local copy of the whole thing,
374	aio_fsync $fh	569	# otherwise perl prematurely frees the stuff :/
375	and return;	570	# TODO: investigate and fix (likely this will be rather laborious)
376		571
377	close $fh	572	my @res = Coro::Util::fork_eval {
378	or return;	573	reset_signals;
		574	&$cb
		575	}, @args;
379		576
380	aio_rename "$runtime~", $runtime	577	wantarray ? @res : $res[-1]
381	and return;	578	}
382		579
		580	=item $coin = coin_from_name $name
		581
		582	=cut
		583
		584	our %coin_alias = (
		585	"silver" => "silvercoin",
		586	"silvercoin" => "silvercoin",
		587	"silvercoins" => "silvercoin",
		588	"gold" => "goldcoin",
		589	"goldcoin" => "goldcoin",
		590	"goldcoins" => "goldcoin",
		591	"platinum" => "platinacoin",
		592	"platinumcoin" => "platinacoin",
		593	"platinumcoins" => "platinacoin",
		594	"platina" => "platinacoin",
		595	"platinacoin" => "platinacoin",
		596	"platinacoins" => "platinacoin",
		597	"royalty" => "royalty",
		598	"royalties" => "royalty",
		599	);
		600
		601	sub coin_from_name($) {
		602	$coin_alias{$_[0]}
		603	? cf::arch::find $coin_alias{$_[0]}
		604	: undef
		605	}
		606
		607	=item $value = cf::db_get $family => $key
		608
		609	Returns a single value from the environment database.
		610
		611	=item cf::db_put $family => $key => $value
		612
		613	Stores the given C<$value> in the family. It can currently store binary
		614	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		615
		616	=item $db = cf::db_table "name"
		617
		618	Create and/or open a new database table. The string must not be "db" and must be unique
		619	within each server.
		620
		621	=cut
		622
		623	sub db_table($) {
		624	my ($name) = @_;
		625	my $db = BDB::db_create $DB_ENV;
		626
		627	eval {
		628	$db->set_flags (BDB::CHKSUM);
		629
		630	utf8::encode $name;
		631	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		632	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		633	cf::cleanup "db_open(db): $!" if $!;
		634	};
		635	cf::cleanup "db_open(db): $@" if $@;
		636
		637	$db
		638	}
		639
		640	our $DB;
		641
		642	sub db_init {
		643	cf::sync_job {
		644	$DB ||= db_table "db";
		645	};
		646	}
		647
		648	sub db_get($$) {
		649	my $key = "$_[0]/$_[1]";
		650
		651	cf::sync_job {
		652	BDB::db_get $DB, undef, $key, my $data;
		653
		654	$! ? ()
		655	: $data
383	1	656	}
		657	}
		658
		659	sub db_put($$$) {
		660	BDB::dbreq_pri 4;
		661	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		662	}
		663
		664	=item cf::cache $id => [$paths...], $processversion => $process
		665
		666	Generic caching function that returns the value of the resource $id,
		667	caching and regenerating as required.
		668
		669	This function can block.
		670
		671	=cut
		672
		673	sub cache {
		674	my ($id, $src, $processversion, $process) = @_;
		675
		676	my $meta =
		677	join "\x00",
		678	$processversion,
		679	map {
		680	aio_stat $_
		681	and Carp::croak "$_: $!";
		682
		683	($_, (stat _)[7,9])
		684	} @$src;
		685
		686	my $dbmeta = db_get cache => "$id/meta";
		687	if ($dbmeta ne $meta) {
		688	# changed, we may need to process
		689
		690	my @data;
		691	my $md5;
		692
		693	for (0 .. $#$src) {
		694	0 <= aio_load $src->[$_], $data[$_]
		695	or Carp::croak "$src->[$_]: $!";
		696	}
		697
		698	# if processing is expensive, check
		699	# checksum first
		700	if (1) {
		701	$md5 =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	cf::cede_to_tick;
		706	($src->[$_], Digest::MD5::md5_hex $data[$_])
		707	} 0.. $#$src;
		708
		709
		710	my $dbmd5 = db_get cache => "$id/md5";
		711	if ($dbmd5 eq $md5) {
		712	db_put cache => "$id/meta", $meta;
		713
		714	return db_get cache => "$id/data";
		715	}
		716	}
		717
		718	my $t1 = Time::HiRes::time;
		719	my $data = $process->(\@data);
		720	my $t2 = Time::HiRes::time;
		721
		722	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		723
		724	db_put cache => "$id/data", $data;
		725	db_put cache => "$id/md5" , $md5;
		726	db_put cache => "$id/meta", $meta;
		727
		728	return $data;
		729	}
		730
		731	db_get cache => "$id/data"
		732	}
		733
		734	=item cf::datalog type => key => value, ...
		735
		736	Log a datalog packet of the given type with the given key-value pairs.
		737
		738	=cut
		739
		740	sub datalog($@) {
		741	my ($type, %kv) = @_;
		742	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	743	}
385		744
386	=back	745	=back
387		746
388	=cut	747	=cut
389		748
390	#############################################################################	749	#############################################################################
391		750
392	=head2 ATTACHABLE OBJECTS	751	=head2 ATTACHABLE OBJECTS
393		752
394	Many objects in crossfire are so-called attachable objects. That means you can	753	Many objects in deliantra are so-called attachable objects. That means you can
395	attach callbacks/event handlers (a collection of which is called an "attachment")	754	attach callbacks/event handlers (a collection of which is called an "attachment")
396	to it. All such attachable objects support the following methods.	755	to it. All such attachable objects support the following methods.
397		756
398	In the following description, CLASS can be any of C<global>, C<object>	757	In the following description, CLASS can be any of C<global>, C<object>
399	C<player>, C<client> or C<map> (i.e. the attachable objects in	758	C<player>, C<client> or C<map> (i.e. the attachable objects in
400	crossfire+).	759	Deliantra).
401		760
402	=over 4	761	=over 4
403		762
404	=item $attachable->attach ($attachment, key => $value...)	763	=item $attachable->attach ($attachment, key => $value...)
405		764
…		…
449	=item cf::CLASS::attachment $name, ...	808	=item cf::CLASS::attachment $name, ...
450		809
451	Register an attachment by C<$name> through which attachable objects of the	810	Register an attachment by C<$name> through which attachable objects of the
452	given CLASS can refer to this attachment.	811	given CLASS can refer to this attachment.
453		812
454	Some classes such as crossfire maps and objects can specify attachments	813	Some classes such as deliantra maps and objects can specify attachments
455	that are attached at load/instantiate time, thus the need for a name.	814	that are attached at load/instantiate time, thus the need for a name.
456		815
457	These calls expect any number of the following handler/hook descriptions:	816	These calls expect any number of the following handler/hook descriptions:
458		817
459	=over 4	818	=over 4
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	927	$registry = $CB_TYPE[$object_type] ||= [];
569		928
570	} elsif ($type eq "subtype") {	929	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	930	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	931	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	932	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		933
575	} elsif ($type eq "package") {	934	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	935	my $pkg = shift @arg;
577		936
578	while (my ($name, $id) = each %cb_id) {	937	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	966	_attach $registry, $klass, @attach;
608	}	967	}
609		968
610	$obj->{$name} = \%arg;	969	$obj->{$name} = \%arg;
611	} else {	970	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	971	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	972	}
614		973
615	$obj->{_attachment}{$name} = undef;	974	$obj->{_attachment}{$name} = undef;
616	}	975	}
617		976
…		…
619	if (ref $_[0]) {	978	if (ref $_[0]) {
620	_object_attach @_;	979	_object_attach @_;
621	} else {	980	} else {
622	_attach shift->_attach_registry, @_;	981	_attach shift->_attach_registry, @_;
623	}	982	}
		983	_recalc_want;
624	};	984	};
625		985
626	# all those should be optimised	986	# all those should be optimised
627	sub cf::attachable::detach {	987	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	988	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	991	delete $obj->{_attachment}{$name};
632	reattach ($obj);	992	reattach ($obj);
633	} else {	993	} else {
634	Carp::croak "cannot, currently, detach class attachments";	994	Carp::croak "cannot, currently, detach class attachments";
635	}	995	}
		996	_recalc_want;
636	};	997	};
637		998
638	sub cf::attachable::attached {	999	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	1000	my ($obj, $name) = @_;
640		1001
…		…
655	";	1016	";
656	die if $@;	1017	die if $@;
657	}	1018	}
658		1019
659	our $override;	1020	our $override;
660	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1021	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
661		1022
662	sub override {	1023	sub override {
663	$override = 1;	1024	$override = 1;
664	@invoke_results = ();	1025	@INVOKE_RESULTS = (@_);
665	}	1026	}
666		1027
667	sub do_invoke {	1028	sub do_invoke {
668	my $event = shift;	1029	my $event = shift;
669	my $callbacks = shift;	1030	my $callbacks = shift;
670		1031
671	@invoke_results = ();	1032	@INVOKE_RESULTS = ();
672		1033
673	local $override;	1034	local $override;
674		1035
675	for (@$callbacks) {	1036	for (@$callbacks) {
676	eval { &{$_->[1]} };	1037	eval { &{$_->[1]} };
…		…
685	}	1046	}
686		1047
687	0	1048	0
688	}	1049	}
689		1050
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1051	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		1052
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1053	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		1054
694	Generate an object-specific event with the given arguments.	1055	Generate an object-specific event with the given arguments.
695		1056
696	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1057	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
697	removed in future versions), and there is no public API to access override	1058	removed in future versions), and there is no public API to access override
698	results (if you must, access C<@cf::invoke_results> directly).	1059	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		1060
700	=back	1061	=back
701		1062
702	=cut	1063	=cut
703		1064
704	#############################################################################	1065	#############################################################################
705	# object support	1066	# object support
		1067
		1068	sub _object_equal($$);
		1069	sub _object_equal($$) {
		1070	my ($a, $b) = @_;
		1071
		1072	return 0 unless (ref $a) eq (ref $b);
		1073
		1074	if ("HASH" eq ref $a) {
		1075	my @ka = keys %$a;
		1076	my @kb = keys %$b;
		1077
		1078	return 0 if @ka != @kb;
		1079
		1080	for (0 .. $#ka) {
		1081	return 0 unless $ka[$_] eq $kb[$_];
		1082	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1083	}
		1084
		1085	} elsif ("ARRAY" eq ref $a) {
		1086
		1087	return 0 if @$a != @$b;
		1088
		1089	for (0 .. $#$a) {
		1090	return 0 unless _object_equal $a->[$_], $b->[$_];
		1091	}
		1092
		1093	} elsif ($a ne $b) {
		1094	return 0;
		1095	}
		1096
		1097	1
		1098	}
		1099
		1100	our $SLOW_MERGES;#d#
		1101	sub _can_merge {
		1102	my ($ob1, $ob2) = @_;
		1103
		1104	++$SLOW_MERGES;#d#
		1105
		1106	# we do the slow way here
		1107	return _object_equal $ob1, $ob2
		1108	}
706		1109
707	sub reattach {	1110	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1111	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1112	my ($obj) = @_;
710		1113
		1114	# no longer needed after getting rid of delete_package?
711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1115	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
712		1116
713	my $registry = $obj->registry;	1117	my $registry = $obj->registry;
714		1118
715	@$registry = ();	1119	@$registry = ();
716		1120
…		…
731	cf::attachable->attach (	1135	cf::attachable->attach (
732	prio => -1000000,	1136	prio => -1000000,
733	on_instantiate => sub {	1137	on_instantiate => sub {
734	my ($obj, $data) = @_;	1138	my ($obj, $data) = @_;
735		1139
736	$data = from_json $data;	1140	$data = decode_json $data;
737		1141
738	for (@$data) {	1142	for (@$data) {
739	my ($name, $args) = @$_;	1143	my ($name, $args) = @$_;
740		1144
741	$obj->attach ($name, %{$args || {} });	1145	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1161	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1162	my ($filename, $rdata, $objs) = @_;
759		1163
760	sync_job {	1164	sync_job {
761	if (length $$rdata) {	1165	if (length $$rdata) {
		1166	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1167	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1168	$decname, length $$rdata, scalar @$objs;
764		1169
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1170	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1171	aio_chmod $fh, SAVE_MODE;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1172	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	aio_fsync $fh if $cf::USE_FSYNC;	1173	if ($cf::USE_FSYNC) {
		1174	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;
		1175	aio_fsync $fh;
		1176	}
769	close $fh;	1177	aio_close $fh;
770		1178
771	if (@$objs) {	1179	if (@$objs) {
772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1180	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
773	chmod SAVE_MODE, $fh;	1181	aio_chmod $fh, SAVE_MODE;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1182	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1183	aio_write $fh, 0, (length $data), $data, 0;
776	aio_fsync $fh if $cf::USE_FSYNC;	1184	if ($cf::USE_FSYNC) {
		1185	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;
		1186	aio_fsync $fh;
		1187	}
777	close $fh;	1188	aio_close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1189	aio_rename "$filename.pst~", "$filename.pst";
779	}	1190	}
780	} else {	1191	} else {
781	aio_unlink "$filename.pst";	1192	aio_unlink "$filename.pst";
782	}	1193	}
783		1194
784	aio_rename "$filename~", $filename;	1195	aio_rename "$filename~", $filename;
		1196
		1197	$filename =~ s%/[^/]+$%%;
		1198	aio_pathsync $filename if $cf::USE_FSYNC;
785	} else {	1199	} else {
786	warn "FATAL: $filename~: $!\n";	1200	warn "unable to save objects: $filename~: $!\n";
787	}	1201	}
788	} else {	1202	} else {
789	aio_unlink $filename;	1203	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1204	aio_unlink "$filename.pst";
791	}	1205	}
792
793	#d##TODO# nuke non .map-files if exist
794	if ($filename =~ s/\.map$//) {
795	aio_unlink $filename;
796	aio_unlink "$filename.pst";
797	}
798	}	1206	};
799	}	1207	}
800		1208
801	sub object_freezer_as_string {	1209	sub object_freezer_as_string {
802	my ($rdata, $objs) = @_;	1210	my ($rdata, $objs) = @_;
803		1211
…		…
808		1216
809	sub object_thawer_load {	1217	sub object_thawer_load {
810	my ($filename) = @_;	1218	my ($filename) = @_;
811		1219
812	my ($data, $av);	1220	my ($data, $av);
813
814	#d#TODO remove .map if file does not exist
815	aio_stat $filename and $filename =~ s/\.map$//;
816		1221
817	(aio_load $filename, $data) >= 0	1222	(aio_load $filename, $data) >= 0
818	or return;	1223	or return;
819		1224
820	unless (aio_stat "$filename.pst") {	1225	unless (aio_stat "$filename.pst") {
821	(aio_load "$filename.pst", $av) >= 0	1226	(aio_load "$filename.pst", $av) >= 0
822	or return;	1227	or return;
		1228
823	$av = eval { (Storable::thaw $av)->{objs} };	1229	my $st = eval { Coro::Storable::thaw $av };
		1230	$av = $st->{objs};
824	}	1231	}
825		1232
		1233	utf8::decode (my $decname = $filename);
826	warn sprintf "loading %s (%d)\n",	1234	warn sprintf "loading %s (%d,%d)\n",
827	$filename, length $data, scalar @{$av || []};#d#	1235	$decname, length $data, scalar @{$av || []};
		1236
828	return ($data, $av);	1237	($data, $av)
829	}	1238	}
		1239
		1240	=head2 COMMAND CALLBACKS
		1241
		1242	=over 4
		1243
		1244	=cut
830		1245
831	#############################################################################	1246	#############################################################################
832	# command handling &c	1247	# command handling &c
833		1248
834	=item cf::register_command $name => \&callback($ob,$args);	1249	=item cf::register_command $name => \&callback($ob,$args);
…		…
847	push @{ $COMMAND{$name} }, [$caller, $cb];	1262	push @{ $COMMAND{$name} }, [$caller, $cb];
848	}	1263	}
849		1264
850	=item cf::register_extcmd $name => \&callback($pl,$packet);	1265	=item cf::register_extcmd $name => \&callback($pl,$packet);
851		1266
852	Register a callbackf ro execution when the client sends an extcmd packet.	1267	Register a callback for execution when the client sends an (synchronous)
		1268	extcmd packet. Ext commands will be processed in the order they are
		1269	received by the server, like other user commands. The first argument is
		1270	the logged-in player. Ext commands can only be processed after a player
		1271	has logged in successfully.
853		1272
854	If the callback returns something, it is sent back as if reply was being	1273	If the callback returns something, it is sent back as if reply was being
855	called.	1274	called.
856		1275
		1276	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1277
		1278	Register a callback for execution when the client sends an (asynchronous)
		1279	exticmd packet. Exti commands are processed by the server as soon as they
		1280	are received, i.e. out of order w.r.t. other commands. The first argument
		1281	is a client socket. Exti commands can be received anytime, even before
		1282	log-in.
		1283
		1284	If the callback returns something, it is sent back as if reply was being
		1285	called.
		1286
857	=cut	1287	=cut
858		1288
859	sub register_extcmd {	1289	sub register_extcmd {
860	my ($name, $cb) = @_;	1290	my ($name, $cb) = @_;
861		1291
862	$EXTCMD{$name} = $cb;	1292	$EXTCMD{$name} = $cb;
863	}	1293	}
		1294
		1295	sub register_exticmd {
		1296	my ($name, $cb) = @_;
		1297
		1298	$EXTICMD{$name} = $cb;
		1299	}
		1300
		1301	use File::Glob ();
864		1302
865	cf::player->attach (	1303	cf::player->attach (
866	on_command => sub {	1304	on_command => sub {
867	my ($pl, $name, $params) = @_;	1305	my ($pl, $name, $params) = @_;
868		1306
…		…
876	cf::override;	1314	cf::override;
877	},	1315	},
878	on_extcmd => sub {	1316	on_extcmd => sub {
879	my ($pl, $buf) = @_;	1317	my ($pl, $buf) = @_;
880		1318
881	my $msg = eval { from_json $buf };	1319	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
882		1320
883	if (ref $msg) {	1321	if (ref $msg) {
		1322	my ($type, $reply, @payload) =
		1323	"ARRAY" eq ref $msg
		1324	? @$msg
		1325	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1326
		1327	my @reply;
		1328
884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1329	if (my $cb = $EXTCMD{$type}) {
885	if (my %reply = $cb->($pl, $msg)) {	1330	@reply = $cb->($pl, @payload);
886	$pl->ext_reply ($msg->{msgid}, %reply);
887	}
888	}	1331	}
		1332
		1333	$pl->ext_reply ($reply, @reply)
		1334	if $reply;
		1335
889	} else {	1336	} else {
890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1337	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
891	}	1338	}
892		1339
893	cf::override;	1340	cf::override;
894	},	1341	},
895	);	1342	);
896		1343
		1344	# "readahead" all extensions
897	sub load_extension {	1345	sub cache_extensions {
898	my ($path) = @_;	1346	my $grp = IO::AIO::aio_group;
899		1347
900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1348	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
901	my $base = $1;	1349	for (grep /\.ext$/, @{$_[0]}) {
902	my $pkg = $1;	1350	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
903	$pkg =~ s/[^[:word:]]/_/g;
904	$pkg = "ext::$pkg";
905
906	warn "... loading '$path' into '$pkg'\n";
907
908	open my $fh, "<:utf8", $path
909	or die "$path: $!";
910
911	my $source =
912	"package $pkg; use strict; use utf8;\n"
913	. "#line 1 \"$path\"\n{\n"
914	. (do { local $/; <$fh> })
915	. "\n};\n1";
916
917	unless (eval $source) {
918	my $msg = $@ ? "$path: $@\n"
919	: "extension disabled.\n";
920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
921	warn $@;
922	warn "mandatory extension failed to load, exiting.\n";
923	exit 1;
924	}	1351	}
925	die $@;
926	}	1352	};
927		1353
928	push @EXTS, $pkg;	1354	$grp
929	}	1355	}
930		1356
931	sub load_extensions {	1357	sub load_extensions {
		1358	cf::sync_job {
		1359	my %todo;
		1360
932	for my $ext (<$LIBDIR/*.ext>) {	1361	for my $path (<$LIBDIR/*.ext>) {
933	next unless -r $ext;	1362	next unless -r $path;
934	eval {	1363
935	load_extension $ext;	1364	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1365	my $base = $1;
		1366	my $pkg = $1;
		1367	$pkg =~ s/[^[:word:]]/_/g;
		1368	$pkg = "ext::$pkg";
		1369
		1370	open my $fh, "<:utf8", $path
		1371	or die "$path: $!";
		1372
		1373	my $source = do { local $/; <$fh> };
		1374
		1375	my %ext = (
		1376	path => $path,
		1377	base => $base,
		1378	pkg => $pkg,
		1379	);
		1380
		1381	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1382	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1383
		1384	$ext{source} =
		1385	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1386	. "#line 1 \"$path\"\n{\n"
		1387	. $source
		1388	. "\n};\n1";
		1389
		1390	$todo{$base} = \%ext;
		1391	}
		1392
		1393	my %done;
		1394	while (%todo) {
		1395	my $progress;
		1396
		1397	while (my ($k, $v) = each %todo) {
		1398	for (split /,\s*/, $v->{meta}{depends}) {
		1399	goto skip
		1400	unless exists $done{$_};
		1401	}
		1402
		1403	warn "... loading '$k' into '$v->{pkg}'\n";
		1404
		1405	unless (eval $v->{source}) {
		1406	my $msg = $@ ? "$v->{path}: $@\n"
		1407	: "$v->{base}: extension inactive.\n";
		1408
		1409	if (exists $v->{meta}{mandatory}) {
		1410	warn $msg;
		1411	cf::cleanup "mandatory extension failed to load, exiting.";
		1412	}
		1413
		1414	warn $msg;
		1415	}
		1416
		1417	$done{$k} = delete $todo{$k};
		1418	push @EXTS, $v->{pkg};
		1419	$progress = 1;
936	1	1420	}
937	} or warn "$ext not loaded: $@";	1421
		1422	skip:
		1423	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1424	unless $progress;
		1425	}
938	}	1426	};
939	}	1427	}
940		1428
941	#############################################################################	1429	#############################################################################
942		1430
		1431	=back
		1432
943	=head2 CORE EXTENSIONS	1433	=head2 CORE EXTENSIONS
944		1434
945	Functions and methods that extend core crossfire objects.	1435	Functions and methods that extend core deliantra objects.
946		1436
947	=cut	1437	=cut
948		1438
949	package cf::player;	1439	package cf::player;
950		1440
…		…
952		1442
953	=head3 cf::player	1443	=head3 cf::player
954		1444
955	=over 4	1445	=over 4
956		1446
		1447	=item cf::player::num_playing
		1448
		1449	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1450
		1451	=cut
		1452
		1453	sub num_playing {
		1454	scalar grep
		1455	$_->ob->map
		1456	&& !$_->hidden
		1457	&& !$_->ob->flag (cf::FLAG_WIZ),
		1458	cf::player::list
		1459	}
		1460
957	=item cf::player::find $login	1461	=item cf::player::find $login
958		1462
959	Returns the given player object, loading it if necessary (might block).	1463	Returns the given player object, loading it if necessary (might block).
960		1464
961	=cut	1465	=cut
962		1466
963	sub playerdir($) {	1467	sub playerdir($) {
964	cf::localdir	1468	"$PLAYERDIR/"
965	. "/"
966	. cf::playerdir
967	. "/"
968	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1469	. (ref $_[0] ? $_[0]->ob->name : $_[0])
969	}	1470	}
970		1471
971	sub path($) {	1472	sub path($) {
972	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1473	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
973		1474
974	(playerdir $login) . "/$login.pl"	1475	(playerdir $login) . "/playerdata"
975	}	1476	}
976		1477
977	sub find_active($) {	1478	sub find_active($) {
978	$cf::PLAYER{$_[0]}	1479	$cf::PLAYER{$_[0]}
979	and $cf::PLAYER{$_[0]}->active	1480	and $cf::PLAYER{$_[0]}->active
…		…
982		1483
983	sub exists($) {	1484	sub exists($) {
984	my ($login) = @_;	1485	my ($login) = @_;
985		1486
986	$cf::PLAYER{$login}	1487	$cf::PLAYER{$login}
987	or cf::sync_job { !aio_stat path $login }	1488	or !aio_stat path $login
988	}	1489	}
989		1490
990	sub find($) {	1491	sub find($) {
991	return $cf::PLAYER{$_[0]} || do {	1492	return $cf::PLAYER{$_[0]} || do {
992	my $login = $_[0];	1493	my $login = $_[0];
993		1494
994	my $guard = cf::lock_acquire "user_find:$login";	1495	my $guard = cf::lock_acquire "user_find:$login";
995		1496
996	$cf::PLAYER{$_[0]} || do {	1497	$cf::PLAYER{$_[0]} || do {
997	my $pl = load_pl path $login	1498	# rename old playerfiles to new ones
		1499	#TODO: remove when no longer required
		1500	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1501	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1502	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1503	aio_unlink +(playerdir $login) . "/$login.pl";
		1504
		1505	my $f = new_from_file cf::object::thawer path $login
998	or return;	1506	or return;
		1507
		1508	my $pl = cf::player::load_pl $f
		1509	or return;
		1510
		1511	local $cf::PLAYER_LOADING{$login} = $pl;
		1512	$f->resolve_delayed_derefs;
999	$cf::PLAYER{$login} = $pl	1513	$cf::PLAYER{$login} = $pl
1000	}	1514	}
1001	}	1515	}
1002	}	1516	}
1003		1517
…		…
1012	return if $pl->{deny_save};	1526	return if $pl->{deny_save};
1013		1527
1014	aio_mkdir playerdir $pl, 0770;	1528	aio_mkdir playerdir $pl, 0770;
1015	$pl->{last_save} = $cf::RUNTIME;	1529	$pl->{last_save} = $cf::RUNTIME;
1016		1530
		1531	cf::get_slot 0.01;
		1532
1017	$pl->save_pl ($path);	1533	$pl->save_pl ($path);
1018	Coro::cede;	1534	cf::cede_to_tick;
1019	}	1535	}
1020		1536
1021	sub new($) {	1537	sub new($) {
1022	my ($login) = @_;	1538	my ($login) = @_;
1023		1539
…		…
1029	$cf::PLAYER{$login} = $self;	1545	$cf::PLAYER{$login} = $self;
1030		1546
1031	$self	1547	$self
1032	}	1548	}
1033		1549
		1550	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1551
		1552	=cut
		1553
		1554	sub send_msg {
		1555	my $ns = shift->ns
		1556	or return;
		1557	$ns->send_msg (@_);
		1558	}
		1559
1034	=item $pl->quit_character	1560	=item $pl->quit_character
1035		1561
1036	Nukes the player without looking back. If logged in, the connection will	1562	Nukes the player without looking back. If logged in, the connection will
1037	be destroyed. May block for a long time.	1563	be destroyed. May block for a long time.
1038		1564
1039	=cut	1565	=cut
1040		1566
1041	sub quit_character {	1567	sub quit_character {
1042	my ($pl) = @_;	1568	my ($pl) = @_;
1043		1569
		1570	my $name = $pl->ob->name;
		1571
1044	$pl->{deny_save} = 1;	1572	$pl->{deny_save} = 1;
1045	$pl->password ("*"); # this should lock out the player until we nuked the dir	1573	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1046		1574
1047	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1575	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1048	$pl->deactivate;	1576	$pl->deactivate;
		1577	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1578	$pl->ob->check_score;
1049	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1579	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1050	$pl->ns->destroy if $pl->ns;	1580	$pl->ns->destroy if $pl->ns;
1051		1581
1052	my $path = playerdir $pl;	1582	my $path = playerdir $pl;
1053	my $temp = "$path~$cf::RUNTIME~deleting~";	1583	my $temp = "$path~$cf::RUNTIME~deleting~";
1054	aio_rename $path, $temp;	1584	aio_rename $path, $temp;
1055	delete $cf::PLAYER{$pl->ob->name};	1585	delete $cf::PLAYER{$pl->ob->name};
1056	$pl->destroy;	1586	$pl->destroy;
		1587
		1588	my $prefix = qr<^~\Q$name\E/>;
		1589
		1590	# nuke player maps
		1591	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1592
1057	IO::AIO::aio_rmtree $temp;	1593	IO::AIO::aio_rmtree $temp;
		1594	}
		1595
		1596	=item $pl->kick
		1597
		1598	Kicks a player out of the game. This destroys the connection.
		1599
		1600	=cut
		1601
		1602	sub kick {
		1603	my ($pl, $kicker) = @_;
		1604
		1605	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1606	$pl->killer ("kicked");
		1607	$pl->ns->destroy;
1058	}	1608	}
1059		1609
1060	=item cf::player::list_logins	1610	=item cf::player::list_logins
1061		1611
1062	Returns am arrayref of all valid playernames in the system, can take a	1612	Returns am arrayref of all valid playernames in the system, can take a
1063	while and may block, so not sync_job-capable, ever.	1613	while and may block, so not sync_job-capable, ever.
1064		1614
1065	=cut	1615	=cut
1066		1616
1067	sub list_logins {	1617	sub list_logins {
1068	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1618	my $dirs = aio_readdir $PLAYERDIR
1069	or return [];	1619	or return [];
1070		1620
1071	my @logins;	1621	my @logins;
1072		1622
1073	for my $login (@$dirs) {	1623	for my $login (@$dirs) {
		1624	my $path = path $login;
		1625
		1626	# a .pst is a dead give-away for a valid player
		1627	# if no pst file found, open and chekc for blocked users
		1628	if (aio_stat "$path.pst") {
1074	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1629	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1075	aio_read $fh, 0, 512, my $buf, 0 or next;	1630	aio_read $fh, 0, 512, my $buf, 0 or next;
1076	$buf !~ /^password -------------$/m or next; # official not-valid tag	1631	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1632	}
1077		1633
1078	utf8::decode $login;	1634	utf8::decode $login;
1079	push @logins, $login;	1635	push @logins, $login;
1080	}	1636	}
1081		1637
…		…
1108	}	1664	}
1109		1665
1110	\@paths	1666	\@paths
1111	}	1667	}
1112		1668
		1669	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1670
		1671	Expand deliantra pod fragments into protocol xml.
		1672
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1673	=item $player->ext_reply ($msgid, @msg)
1114		1674
1115	Sends an ext reply to the player.	1675	Sends an ext reply to the player.
1116		1676
1117	=cut	1677	=cut
1118		1678
1119	sub ext_reply($$$%) {	1679	sub ext_reply($$@) {
1120	my ($self, $id, %msg) = @_;	1680	my ($self, $id, @msg) = @_;
1121		1681
1122	$msg{msgid} = $id;	1682	$self->ns->ext_reply ($id, @msg)
1123
1124	$self->send ("ext " . cf::to_json \%msg);
1125	}	1683	}
1126		1684
1127	package cf;	1685	=item $player->ext_msg ($type, @msg)
		1686
		1687	Sends an ext event to the client.
		1688
		1689	=cut
		1690
		1691	sub ext_msg($$@) {
		1692	my ($self, $type, @msg) = @_;
		1693
		1694	$self->ns->ext_msg ($type, @msg);
		1695	}
		1696
		1697	=head3 cf::region
		1698
		1699	=over 4
		1700
		1701	=cut
		1702
		1703	package cf::region;
		1704
		1705	=item cf::region::find_by_path $path
		1706
		1707	Tries to decuce the likely region for a map knowing only its path.
		1708
		1709	=cut
		1710
		1711	sub find_by_path($) {
		1712	my ($path) = @_;
		1713
		1714	my ($match, $specificity);
		1715
		1716	for my $region (list) {
		1717	if ($region->{match} && $path =~ $region->{match}) {
		1718	($match, $specificity) = ($region, $region->specificity)
		1719	if $region->specificity > $specificity;
		1720	}
		1721	}
		1722
		1723	$match
		1724	}
1128		1725
1129	=back	1726	=back
1130
1131		1727
1132	=head3 cf::map	1728	=head3 cf::map
1133		1729
1134	=over 4	1730	=over 4
1135		1731
…		…
1147	our $MAX_RESET = 3600;	1743	our $MAX_RESET = 3600;
1148	our $DEFAULT_RESET = 3000;	1744	our $DEFAULT_RESET = 3000;
1149		1745
1150	sub generate_random_map {	1746	sub generate_random_map {
1151	my ($self, $rmp) = @_;	1747	my ($self, $rmp) = @_;
		1748
		1749	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1750
1152	# mit "rum" bekleckern, nicht	1751	# mit "rum" bekleckern, nicht
1153	$self->_create_random_map (	1752	$self->_create_random_map (
1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1753	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1754	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1755	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1190	my ($self, $merge) = @_;	1789	my ($self, $merge) = @_;
1191		1790
1192	# we have to keep some variables in memory intact	1791	# we have to keep some variables in memory intact
1193	local $self->{path};	1792	local $self->{path};
1194	local $self->{load_path};	1793	local $self->{load_path};
1195	local $self->{deny_save};
1196	local $self->{deny_reset};
1197		1794
1198	$self->SUPER::thawer_merge ($merge);	1795	$self->SUPER::thawer_merge ($merge);
1199	}	1796	}
1200		1797
1201	sub normalise {	1798	sub normalise {
…		…
1248	$self->init; # pass $1 etc.	1845	$self->init; # pass $1 etc.
1249	return $self;	1846	return $self;
1250	}	1847	}
1251	}	1848	}
1252		1849
1253	Carp::carp "unable to resolve path '$path' (base '$base').";	1850	Carp::cluck "unable to resolve path '$path' (base '$base').";
1254	()	1851	()
1255	}	1852	}
1256		1853
1257	sub init {	1854	sub init {
1258	my ($self) = @_;	1855	my ($self) = @_;
…		…
1273		1870
1274	# the original (read-only) location	1871	# the original (read-only) location
1275	sub load_path {	1872	sub load_path {
1276	my ($self) = @_;	1873	my ($self) = @_;
1277		1874
1278	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1875	"$MAPDIR/$self->{path}.map"
1279	}	1876	}
1280		1877
1281	# the temporary/swap location	1878	# the temporary/swap location
1282	sub save_path {	1879	sub save_path {
1283	my ($self) = @_;	1880	my ($self) = @_;
1284		1881
1285	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1882	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1286	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1883	"$TMPDIR/$path.map"
1287	}	1884	}
1288		1885
1289	# the unique path, undef == no special unique path	1886	# the unique path, undef == no special unique path
1290	sub uniq_path {	1887	sub uniq_path {
1291	my ($self) = @_;	1888	my ($self) = @_;
1292		1889
1293	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1890	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1294	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1891	"$UNIQUEDIR/$path"
1295	}	1892	}
1296		1893
1297	# and all this just because we cannot iterate over	1894	sub decay_objects {
1298	# all maps in C++...
1299	sub change_all_map_light {
1300	my ($change) = @_;	1895	my ($self) = @_;
1301		1896
1302	$_->change_map_light ($change)	1897	return if $self->{deny_reset};
1303	for grep $_->outdoor, values %cf::MAP;	1898
		1899	$self->do_decay_objects;
1304	}	1900	}
1305		1901
1306	sub unlink_save {	1902	sub unlink_save {
1307	my ($self) = @_;	1903	my ($self) = @_;
1308		1904
1309	utf8::encode (my $save = $self->save_path);	1905	utf8::encode (my $save = $self->save_path);
1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1906	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1311	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1907	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1312
1313	#d#TODO remove .map and also nuke
1314	$save =~ s/\.map// or return;#d#
1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1317	}	1908	}
1318		1909
1319	sub load_header_from($) {	1910	sub load_header_from($) {
1320	my ($self, $path) = @_;	1911	my ($self, $path) = @_;
1321		1912
1322	utf8::encode $path;	1913	utf8::encode $path;
1323	#aio_open $path, O_RDONLY, 0	1914	my $f = new_from_file cf::object::thawer $path
1324	# or return;
1325
1326	$self->_load_header ($path)
1327	or return;	1915	or return;
		1916
		1917	$self->_load_header ($f)
		1918	or return;
		1919
		1920	local $MAP_LOADING{$self->{path}} = $self;
		1921	$f->resolve_delayed_derefs;
1328		1922
1329	$self->{load_path} = $path;	1923	$self->{load_path} = $path;
1330		1924
1331	1	1925	1
1332	}	1926	}
…		…
1371	$self->load_header_orig	1965	$self->load_header_orig
1372	or return;	1966	or return;
1373	$self->prepare_orig;	1967	$self->prepare_orig;
1374	}	1968	}
1375		1969
		1970	$self->{deny_reset} = 1
		1971	if $self->no_reset;
		1972
		1973	$self->default_region (cf::region::find_by_path $self->{path})
		1974	unless $self->default_region;
		1975
1376	1	1976	1
1377	}	1977	}
1378		1978
1379	sub find;	1979	sub find;
1380	sub find {	1980	sub find {
1381	my ($path, $origin) = @_;	1981	my ($path, $origin) = @_;
1382		1982
1383	$path = normalise $path, $origin && $origin->path;	1983	$path = normalise $path, $origin && $origin->path;
1384		1984
		1985	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1385	cf::lock_wait "map_find:$path";	1986	my $guard2 = cf::lock_acquire "map_find:$path";
1386		1987
1387	$cf::MAP{$path} || do {	1988	$cf::MAP{$path} || do {
1388	my $guard = cf::lock_acquire "map_find:$path";
1389	my $map = new_from_path cf::map $path	1989	my $map = new_from_path cf::map $path
1390	or return;	1990	or return;
1391		1991
1392	$map->{last_save} = $cf::RUNTIME;	1992	$map->{last_save} = $cf::RUNTIME;
1393		1993
1394	$map->load_header	1994	$map->load_header
1395	or return;	1995	or return;
1396		1996
1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1997	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1398	# doing this can freeze the server in a sync job, obviously	1998	# doing this can freeze the server in a sync job, obviously
1399	#$cf::WAIT_FOR_TICK->wait;	1999	#$cf::WAIT_FOR_TICK->wait;
		2000	undef $guard2;
		2001	undef $guard1;
1400	$map->reset;	2002	$map->reset;
1401	undef $guard;
1402	return find $path;	2003	return find $path;
1403	}	2004	}
1404		2005
1405	$cf::MAP{$path} = $map	2006	$cf::MAP{$path} = $map
1406	}	2007	}
…		…
1413	my ($self) = @_;	2014	my ($self) = @_;
1414		2015
1415	local $self->{deny_reset} = 1; # loading can take a long time	2016	local $self->{deny_reset} = 1; # loading can take a long time
1416		2017
1417	my $path = $self->{path};	2018	my $path = $self->{path};
		2019
		2020	{
1418	my $guard = cf::lock_acquire "map_load:$path";	2021	my $guard = cf::lock_acquire "map_data:$path";
1419		2022
		2023	return unless $self->valid;
1420	return if $self->in_memory != cf::MAP_SWAPPED;	2024	return unless $self->in_memory == cf::MAP_SWAPPED;
1421		2025
1422	$self->in_memory (cf::MAP_LOADING);	2026	$self->in_memory (cf::MAP_LOADING);
1423		2027
1424	$self->alloc;	2028	$self->alloc;
1425		2029
1426	$self->pre_load;	2030	$self->pre_load;
		2031	cf::cede_to_tick;
1427		2032
1428	$self->_load_objects ($self->{load_path}, 1)	2033	my $f = new_from_file cf::object::thawer $self->{load_path};
		2034	$f->skip_block;
		2035	$self->_load_objects ($f)
1429	or return;	2036	or return;
1430		2037
1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2038	$self->post_load_original
1432	if delete $self->{load_original};	2039	if delete $self->{load_original};
1433		2040
1434	if (my $uniq = $self->uniq_path) {	2041	if (my $uniq = $self->uniq_path) {
1435	utf8::encode $uniq;	2042	utf8::encode $uniq;
1436	if (aio_open $uniq, O_RDONLY, 0) {	2043	unless (aio_stat $uniq) {
		2044	if (my $f = new_from_file cf::object::thawer $uniq) {
1437	$self->clear_unique_items;	2045	$self->clear_unique_items;
1438	$self->_load_objects ($uniq, 0);	2046	$self->_load_objects ($f);
		2047	$f->resolve_delayed_derefs;
		2048	}
1439	}	2049	}
1440	}	2050	}
1441		2051
1442	Coro::cede;	2052	$f->resolve_delayed_derefs;
1443		2053
		2054	cf::cede_to_tick;
1444	# now do the right thing for maps	2055	# now do the right thing for maps
1445	$self->link_multipart_objects;	2056	$self->link_multipart_objects;
1446
1447	unless ($self->{deny_activate}) {
1448	$self->decay_objects;
1449	$self->fix_auto_apply;
1450	$self->update_buttons;
1451	Coro::cede;
1452	$self->set_darkness_map;
1453	$self->difficulty ($self->estimate_difficulty)	2057	$self->difficulty ($self->estimate_difficulty)
1454	unless $self->difficulty;	2058	unless $self->difficulty;
1455	Coro::cede;	2059	cf::cede_to_tick;
		2060
		2061	unless ($self->{deny_activate}) {
		2062	$self->decay_objects;
		2063	$self->fix_auto_apply;
		2064	$self->update_buttons;
		2065	cf::cede_to_tick;
1456	$self->activate;	2066	$self->activate;
		2067	}
		2068
		2069	$self->{last_save} = $cf::RUNTIME;
		2070	$self->last_access ($cf::RUNTIME);
		2071
		2072	$self->in_memory (cf::MAP_ACTIVE);
1457	}	2073	}
1458		2074
1459	$self->post_load;	2075	$self->post_load;
1460
1461	$self->in_memory (cf::MAP_IN_MEMORY);
1462	}	2076	}
1463		2077
1464	sub customise_for {	2078	sub customise_for {
1465	my ($self, $ob) = @_;	2079	my ($self, $ob) = @_;
1466		2080
1467	return find "~" . $ob->name . "/" . $self->{path}	2081	return find "~" . $ob->name . "/" . $self->{path}
1468	if $self->per_player;	2082	if $self->per_player;
1469		2083
		2084	# return find "?party/" . $ob->name . "/" . $self->{path}
		2085	# if $self->per_party;
		2086
1470	$self	2087	$self
1471	}	2088	}
1472		2089
1473	# find and load all maps in the 3x3 area around a map	2090	# find and load all maps in the 3x3 area around a map
1474	sub load_diag {	2091	sub load_neighbours {
1475	my ($map) = @_;	2092	my ($map) = @_;
1476		2093
1477	my @diag; # diagonal neighbours	2094	my @neigh; # diagonal neighbours
1478		2095
1479	for (0 .. 3) {	2096	for (0 .. 3) {
1480	my $neigh = $map->tile_path ($_)	2097	my $neigh = $map->tile_path ($_)
1481	or next;	2098	or next;
1482	$neigh = find $neigh, $map	2099	$neigh = find $neigh, $map
1483	or next;	2100	or next;
1484	$neigh->load;	2101	$neigh->load;
1485		2102
		2103	push @neigh,
1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2104	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2105	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1488	}	2106	}
1489		2107
1490	for (@diag) {	2108	for (grep defined $_->[0], @neigh) {
		2109	my ($path, $origin) = @$_;
1491	my $neigh = find @$_	2110	my $neigh = find $path, $origin
1492	or next;	2111	or next;
1493	$neigh->load;	2112	$neigh->load;
1494	}	2113	}
1495	}	2114	}
1496		2115
…		…
1501	}	2120	}
1502		2121
1503	sub do_load_sync {	2122	sub do_load_sync {
1504	my ($map) = @_;	2123	my ($map) = @_;
1505		2124
		2125	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2126	if $Coro::current == $Coro::main;
		2127
1506	cf::sync_job { $map->load };	2128	cf::sync_job { $map->load };
1507	}	2129	}
1508		2130
1509	our %MAP_PREFETCH;	2131	our %MAP_PREFETCH;
1510	our $MAP_PREFETCHER = undef;	2132	our $MAP_PREFETCHER = undef;
1511		2133
1512	sub find_async {	2134	sub find_async {
1513	my ($path, $origin) = @_;	2135	my ($path, $origin, $load) = @_;
1514		2136
1515	$path = normalise $path, $origin && $origin->{path};	2137	$path = normalise $path, $origin && $origin->{path};
1516		2138
1517	if (my $map = $cf::MAP{$path}) {	2139	if (my $map = $cf::MAP{$path}) {
1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2140	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1519	}	2141	}
1520		2142
1521	undef $MAP_PREFETCH{$path};	2143	$MAP_PREFETCH{$path} |= $load;
		2144
1522	$MAP_PREFETCHER ||= cf::async {	2145	$MAP_PREFETCHER ||= cf::async {
		2146	$Coro::current->{desc} = "map prefetcher";
		2147
1523	while (%MAP_PREFETCH) {	2148	while (%MAP_PREFETCH) {
1524	for my $path (keys %MAP_PREFETCH) {	2149	while (my ($k, $v) = each %MAP_PREFETCH) {
1525	my $map = find $path	2150	if (my $map = find $k) {
1526	or next;
1527	$map->load;	2151	$map->load if $v;
		2152	}
1528		2153
1529	delete $MAP_PREFETCH{$path};	2154	delete $MAP_PREFETCH{$k};
1530	}	2155	}
1531	}	2156	}
1532	undef $MAP_PREFETCHER;	2157	undef $MAP_PREFETCHER;
1533	};	2158	};
1534	$MAP_PREFETCHER->prio (6);	2159	$MAP_PREFETCHER->prio (6);
…		…
1537	}	2162	}
1538		2163
1539	sub save {	2164	sub save {
1540	my ($self) = @_;	2165	my ($self) = @_;
1541		2166
1542	my $lock = cf::lock_acquire "map_data:" . $self->path;	2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2168
1544	$self->{last_save} = $cf::RUNTIME;	2169	$self->{last_save} = $cf::RUNTIME;
1545		2170
1546	return unless $self->dirty;	2171	return unless $self->dirty;
1547		2172
…		…
1553	return if $self->{deny_save};	2178	return if $self->{deny_save};
1554		2179
1555	local $self->{last_access} = $self->last_access;#d#	2180	local $self->{last_access} = $self->last_access;#d#
1556		2181
1557	cf::async {	2182	cf::async {
		2183	$Coro::current->{desc} = "map player save";
1558	$_->contr->save for $self->players;	2184	$_->contr->save for $self->players;
1559	};	2185	};
		2186
		2187	cf::get_slot 0.02;
1560		2188
1561	if ($uniq) {	2189	if ($uniq) {
1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2190	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2191	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1564	} else {	2192	} else {
…		…
1570	my ($self) = @_;	2198	my ($self) = @_;
1571		2199
1572	# save first because save cedes	2200	# save first because save cedes
1573	$self->save;	2201	$self->save;
1574		2202
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2204
1577	return if $self->players;	2205	return if $self->players;
1578	return if $self->in_memory != cf::MAP_IN_MEMORY;	2206	return if $self->in_memory != cf::MAP_ACTIVE;
1579	return if $self->{deny_save};	2207	return if $self->{deny_save};
1580		2208
		2209	$self->in_memory (cf::MAP_SWAPPED);
		2210
		2211	$self->deactivate;
		2212	$_->clear_links_to ($self) for values %cf::MAP;
1581	$self->clear;	2213	$self->clear;
1582	$self->in_memory (cf::MAP_SWAPPED);
1583	}	2214	}
1584		2215
1585	sub reset_at {	2216	sub reset_at {
1586	my ($self) = @_;	2217	my ($self) = @_;
1587		2218
1588	# TODO: safety, remove and allow resettable per-player maps	2219	# TODO: safety, remove and allow resettable per-player maps
1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
1590	return 1e99 if $self->{deny_reset};	2220	return 1e99 if $self->{deny_reset};
1591		2221
1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2222	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1593	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2223	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1594		2224
…		…
1605	my ($self) = @_;	2235	my ($self) = @_;
1606		2236
1607	my $lock = cf::lock_acquire "map_data:$self->{path}";	2237	my $lock = cf::lock_acquire "map_data:$self->{path}";
1608		2238
1609	return if $self->players;	2239	return if $self->players;
1610	return if $self->isa ("ext::map_per_player");#d#
1611		2240
1612	warn "resetting map ", $self->path;#d#	2241	warn "resetting map ", $self->path, "\n";
		2242
		2243	$self->in_memory (cf::MAP_SWAPPED);
		2244
		2245	# need to save uniques path
		2246	unless ($self->{deny_save}) {
		2247	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2248
		2249	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2250	if $uniq;
		2251	}
1613		2252
1614	delete $cf::MAP{$self->path};	2253	delete $cf::MAP{$self->path};
1615		2254
1616	$self->in_memory (cf::MAP_SWAPPED);	2255	$self->deactivate;
		2256	$_->clear_links_to ($self) for values %cf::MAP;
1617	$self->clear;	2257	$self->clear;
1618
1619	$_->clear_links_to ($self) for values %cf::MAP;
1620		2258
1621	$self->unlink_save;	2259	$self->unlink_save;
1622	$self->destroy;	2260	$self->destroy;
1623	}	2261	}
1624		2262
1625	my $nuke_counter = "aaaa";	2263	my $nuke_counter = "aaaa";
1626		2264
1627	sub nuke {	2265	sub nuke {
1628	my ($self) = @_;	2266	my ($self) = @_;
1629		2267
		2268	{
		2269	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2270
1630	delete $cf::MAP{$self->path};	2271	delete $cf::MAP{$self->path};
1631		2272
1632	$self->unlink_save;	2273	$self->unlink_save;
1633		2274
1634	bless $self, "cf::map";	2275	bless $self, "cf::map";
1635	delete $self->{deny_reset};	2276	delete $self->{deny_reset};
1636	$self->{deny_save} = 1;	2277	$self->{deny_save} = 1;
1637	$self->reset_timeout (1);	2278	$self->reset_timeout (1);
1638	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2279	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1639		2280
1640	$cf::MAP{$self->path} = $self;	2281	$cf::MAP{$self->path} = $self;
		2282	}
1641		2283
1642	$self->reset; # polite request, might not happen	2284	$self->reset; # polite request, might not happen
		2285	}
		2286
		2287	=item $maps = cf::map::tmp_maps
		2288
		2289	Returns an arrayref with all map paths of currently instantiated and saved
		2290	maps. May block.
		2291
		2292	=cut
		2293
		2294	sub tmp_maps() {
		2295	[
		2296	map {
		2297	utf8::decode $_;
		2298	/\.map$/
		2299	? normalise $_
		2300	: ()
		2301	} @{ aio_readdir $TMPDIR or [] }
		2302	]
		2303	}
		2304
		2305	=item $maps = cf::map::random_maps
		2306
		2307	Returns an arrayref with all map paths of currently instantiated and saved
		2308	random maps. May block.
		2309
		2310	=cut
		2311
		2312	sub random_maps() {
		2313	[
		2314	map {
		2315	utf8::decode $_;
		2316	/\.map$/
		2317	? normalise "?random/$_"
		2318	: ()
		2319	} @{ aio_readdir $RANDOMDIR or [] }
		2320	]
1643	}	2321	}
1644		2322
1645	=item cf::map::unique_maps	2323	=item cf::map::unique_maps
1646		2324
1647	Returns an arrayref of paths of all shared maps that have	2325	Returns an arrayref of paths of all shared maps that have
1648	instantiated unique items. May block.	2326	instantiated unique items. May block.
1649		2327
1650	=cut	2328	=cut
1651		2329
1652	sub unique_maps() {	2330	sub unique_maps() {
1653	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2331	[
1654	or return;	2332	map {
1655
1656	my @paths;
1657
1658	for (@$files) {
1659	utf8::decode $_;	2333	utf8::decode $_;
1660	next if /\.pst$/;	2334	s/\.map$//; # TODO future compatibility hack
1661	next unless /^$PATH_SEP/o;	2335	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1662		2336	? ()
1663	push @paths, cf::map::normalise $_;	2337	: normalise $_
		2338	} @{ aio_readdir $UNIQUEDIR or [] }
1664	}	2339	]
1665
1666	\@paths
1667	}	2340	}
1668
1669	package cf;
1670		2341
1671	=back	2342	=back
1672		2343
1673	=head3 cf::object	2344	=head3 cf::object
1674		2345
…		…
1678		2349
1679	=over 4	2350	=over 4
1680		2351
1681	=item $ob->inv_recursive	2352	=item $ob->inv_recursive
1682		2353
1683	Returns the inventory of the object _and_ their inventories, recursively.	2354	Returns the inventory of the object I<and> their inventories, recursively,
		2355	but I<not> the object itself.
1684		2356
1685	=cut	2357	=cut
1686		2358
1687	sub inv_recursive_;	2359	sub inv_recursive_;
1688	sub inv_recursive_ {	2360	sub inv_recursive_ {
…		…
1691		2363
1692	sub inv_recursive {	2364	sub inv_recursive {
1693	inv_recursive_ inv $_[0]	2365	inv_recursive_ inv $_[0]
1694	}	2366	}
1695		2367
		2368	=item $ref = $ob->ref
		2369
		2370	Creates and returns a persistent reference to an object that can be stored as a string.
		2371
		2372	=item $ob = cf::object::deref ($refstring)
		2373
		2374	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2375	even if the object actually exists. May block.
		2376
		2377	=cut
		2378
		2379	sub deref {
		2380	my ($ref) = @_;
		2381
		2382	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2383	my ($uuid, $name) = ($1, $2);
		2384	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2385	or return;
		2386	$pl->ob->uuid eq $uuid
		2387	or return;
		2388
		2389	$pl->ob
		2390	} else {
		2391	warn "$ref: cannot resolve object reference\n";
		2392	undef
		2393	}
		2394	}
		2395
1696	package cf;	2396	package cf;
1697		2397
1698	=back	2398	=back
1699		2399
1700	=head3 cf::object::player	2400	=head3 cf::object::player
…		…
1706	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2406	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1707	can be C<undef>. Does the right thing when the player is currently in a	2407	can be C<undef>. Does the right thing when the player is currently in a
1708	dialogue with the given NPC character.	2408	dialogue with the given NPC character.
1709		2409
1710	=cut	2410	=cut
		2411
		2412	our $SAY_CHANNEL = {
		2413	id => "say",
		2414	title => "Map",
		2415	reply => "say ",
		2416	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2417	};
		2418
		2419	our $CHAT_CHANNEL = {
		2420	id => "chat",
		2421	title => "Chat",
		2422	reply => "chat ",
		2423	tooltip => "Player chat and shouts, global to the server.",
		2424	};
1711		2425
1712	# rough implementation of a future "reply" method that works	2426	# rough implementation of a future "reply" method that works
1713	# with dialog boxes.	2427	# with dialog boxes.
1714	#TODO: the first argument must go, split into a $npc->reply_to ( method	2428	#TODO: the first argument must go, split into a $npc->reply_to ( method
1715	sub cf::object::player::reply($$$;$) {	2429	sub cf::object::player::reply($$$;$) {
…		…
1717		2431
1718	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2432	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1719		2433
1720	if ($self->{record_replies}) {	2434	if ($self->{record_replies}) {
1721	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2435	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2436
1722	} else {	2437	} else {
		2438	my $pl = $self->contr;
		2439
		2440	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2441	my $dialog = $pl->{npc_dialog};
		2442	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2443
		2444	} else {
1723	$msg = $npc->name . " says: $msg" if $npc;	2445	$msg = $npc->name . " says: $msg" if $npc;
1724	$self->message ($msg, $flags);	2446	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2447	}
1725	}	2448	}
		2449	}
		2450
		2451	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2452
		2453	=cut
		2454
		2455	sub cf::object::send_msg {
		2456	my $pl = shift->contr
		2457	or return;
		2458	$pl->send_msg (@_);
1726	}	2459	}
1727		2460
1728	=item $player_object->may ("access")	2461	=item $player_object->may ("access")
1729		2462
1730	Returns wether the given player is authorized to access resource "access"	2463	Returns wether the given player is authorized to access resource "access"
…		…
1743		2476
1744	=item $player_object->enter_link	2477	=item $player_object->enter_link
1745		2478
1746	Freezes the player and moves him/her to a special map (C<{link}>).	2479	Freezes the player and moves him/her to a special map (C<{link}>).
1747		2480
1748	The player should be reasonably safe there for short amounts of time. You	2481	The player should be reasonably safe there for short amounts of time (e.g.
1749	I<MUST> call C<leave_link> as soon as possible, though.	2482	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2483	though, as the palyer cannot control the character while it is on the link
		2484	map.
1750		2485
1751	Will never block.	2486	Will never block.
1752		2487
1753	=item $player_object->leave_link ($map, $x, $y)	2488	=item $player_object->leave_link ($map, $x, $y)
1754		2489
…		…
1777	$self->deactivate_recursive;	2512	$self->deactivate_recursive;
1778		2513
1779	return if UNIVERSAL::isa $self->map, "ext::map_link";	2514	return if UNIVERSAL::isa $self->map, "ext::map_link";
1780		2515
1781	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2516	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1782	if $self->map;	2517	if $self->map && $self->map->{path} ne "{link}";
1783		2518
1784	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2519	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1785	}	2520	}
1786		2521
1787	sub cf::object::player::leave_link {	2522	sub cf::object::player::leave_link {
1788	my ($self, $map, $x, $y) = @_;	2523	my ($self, $map, $x, $y) = @_;
		2524
		2525	return unless $self->contr->active;
1789		2526
1790	my $link_pos = delete $self->{_link_pos};	2527	my $link_pos = delete $self->{_link_pos};
1791		2528
1792	unless ($map) {	2529	unless ($map) {
1793	# restore original map position	2530	# restore original map position
…		…
1807	# use -1 or undef as default coordinates, not 0, 0	2544	# use -1 or undef as default coordinates, not 0, 0
1808	($x, $y) = ($map->enter_x, $map->enter_y)	2545	($x, $y) = ($map->enter_x, $map->enter_y)
1809	if $x <=0 && $y <= 0;	2546	if $x <=0 && $y <= 0;
1810		2547
1811	$map->load;	2548	$map->load;
1812	$map->load_diag;	2549	$map->load_neighbours;
1813		2550
1814	return unless $self->contr->active;	2551	return unless $self->contr->active;
		2552
		2553	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2554	$self->enter_map ($map, $x, $y);
		2555
		2556	# only activate afterwards, to support waiting in hooks
1815	$self->activate_recursive;	2557	$self->activate_recursive;
1816	$self->enter_map ($map, $x, $y);
1817	}	2558	}
1818		2559
1819	cf::player->attach (	2560	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1820	on_logout => sub {
1821	my ($pl) = @_;
1822		2561
1823	# abort map switching before logout	2562	Moves the player to the given map-path and coordinates by first freezing
1824	if ($pl->ob->{_link_pos}) {	2563	her, loading and preparing them map, calling the provided $check callback
1825	cf::sync_job {	2564	that has to return the map if sucecssful, and then unfreezes the player on
1826	$pl->ob->leave_link	2565	the new (success) or old (failed) map position. In either case, $done will
1827	};	2566	be called at the end of this process.
1828	}
1829	},
1830	on_login => sub {
1831	my ($pl) = @_;
1832		2567
1833	# try to abort aborted map switching on player login :)	2568	Note that $check will be called with a potentially non-loaded map, so if
1834	# should happen only on crashes	2569	it needs a loaded map it has to call C<< ->load >>.
1835	if ($pl->ob->{_link_pos}) {
1836	$pl->ob->enter_link;
1837	(async {
1838	# we need this sleep as the login has a concurrent enter_exit running
1839	# and this sleep increases chances of the player not ending up in scorn
1840	$pl->ob->reply (undef,
1841	"There was an internal problem at your last logout, "
1842	. "the server will try to bring you to your intended destination in a second.",
1843	cf::NDI_RED);
1844	Coro::Timer::sleep 1;
1845	$pl->ob->leave_link;
1846	})->prio (2);
1847	}
1848	},
1849	);
1850		2570
1851	=item $player_object->goto ($path, $x, $y)
1852
1853	=cut	2571	=cut
		2572
		2573	our $GOTOGEN;
1854		2574
1855	sub cf::object::player::goto {	2575	sub cf::object::player::goto {
1856	my ($self, $path, $x, $y) = @_;	2576	my ($self, $path, $x, $y, $check, $done) = @_;
		2577
		2578	# do generation counting so two concurrent goto's will be executed in-order
		2579	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1857		2580
1858	$self->enter_link;	2581	$self->enter_link;
1859		2582
1860	(async {	2583	(async {
		2584	$Coro::current->{desc} = "player::goto $path $x $y";
		2585
		2586	# *tag paths override both path and x|y
		2587	if ($path =~ /^\*(.*)$/) {
		2588	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2589	my $ob = $obs[rand @obs];
		2590
		2591	# see if we actually can go there
		2592	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2593	$ob = $obs[rand @obs];
		2594	} else {
		2595	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2596	}
		2597	# else put us there anyways for now #d#
		2598
		2599	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2600	} else {
		2601	($path, $x, $y) = (undef, undef, undef);
		2602	}
		2603	}
		2604
1861	my $map = eval {	2605	my $map = eval {
1862	my $map = cf::map::find $path;	2606	my $map = defined $path ? cf::map::find $path : undef;
		2607
		2608	if ($map) {
1863	$map = $map->customise_for ($self) if $map;	2609	$map = $map->customise_for ($self);
		2610	$map = $check->($map) if $check && $map;
		2611	} else {
		2612	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2613	}
		2614
1864	$map	2615	$map
		2616	};
		2617
		2618	if ($@) {
		2619	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2620	LOG llevError | logBacktrace, Carp::longmess $@;
1865	} or	2621	}
1866	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1867		2622
		2623	if ($gen == $self->{_goto_generation}) {
		2624	delete $self->{_goto_generation};
1868	$self->leave_link ($map, $x, $y);	2625	$self->leave_link ($map, $x, $y);
		2626	}
		2627
		2628	$done->() if $done;
1869	})->prio (1);	2629	})->prio (1);
1870	}	2630	}
1871		2631
1872	=item $player_object->enter_exit ($exit_object)	2632	=item $player_object->enter_exit ($exit_object)
1873		2633
…		…
1893	}	2653	}
1894		2654
1895	sub prepare_random_map {	2655	sub prepare_random_map {
1896	my ($exit) = @_;	2656	my ($exit) = @_;
1897		2657
1898	my $guard = cf::lock_acquire "exit_prepare:$exit";
1899
1900	# all this does is basically replace the /! path by	2658	# all this does is basically replace the /! path by
1901	# a new random map path (?random/...) with a seed	2659	# a new random map path (?random/...) with a seed
1902	# that depends on the exit object	2660	# that depends on the exit object
1903		2661
1904	my $rmp = parse_random_map_params $exit->msg;	2662	my $rmp = parse_random_map_params $exit->msg;
…		…
1906	if ($exit->map) {	2664	if ($exit->map) {
1907	$rmp->{region} = $exit->region->name;	2665	$rmp->{region} = $exit->region->name;
1908	$rmp->{origin_map} = $exit->map->path;	2666	$rmp->{origin_map} = $exit->map->path;
1909	$rmp->{origin_x} = $exit->x;	2667	$rmp->{origin_x} = $exit->x;
1910	$rmp->{origin_y} = $exit->y;	2668	$rmp->{origin_y} = $exit->y;
		2669
		2670	$exit->map->touch;
1911	}	2671	}
1912		2672
1913	$rmp->{random_seed} ||= $exit->random_seed;	2673	$rmp->{random_seed} ||= $exit->random_seed;
1914		2674
1915	my $data = cf::to_json $rmp;	2675	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1916	my $md5 = Digest::MD5::md5_hex $data;	2676	my $md5 = Digest::MD5::md5_hex $data;
1917	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2677	my $meta = "$RANDOMDIR/$md5.meta";
1918		2678
1919	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2679	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1920	aio_write $fh, 0, (length $data), $data, 0;	2680	aio_write $fh, 0, (length $data), $data, 0;
1921	undef $fh;	2681	undef $fh;
1922	aio_rename "$meta~", $meta;	2682	aio_rename "$meta~", $meta;
1923		2683
		2684	my $slaying = "?random/$md5";
		2685
		2686	if ($exit->valid) {
1924	$exit->slaying ("?random/$md5");	2687	$exit->slaying ("?random/$md5");
1925	$exit->msg (undef);	2688	$exit->msg (undef);
		2689	}
1926	}	2690	}
1927	}	2691	}
1928		2692
1929	sub cf::object::player::enter_exit {	2693	sub cf::object::player::enter_exit {
1930	my ($self, $exit) = @_;	2694	my ($self, $exit) = @_;
1931		2695
1932	return unless $self->type == cf::PLAYER;	2696	return unless $self->type == cf::PLAYER;
1933		2697
1934	if ($exit->slaying eq "/!") {
1935	#TODO: this should de-fi-ni-te-ly not be a sync-job
1936	cf::sync_job { prepare_random_map $exit };
1937	}
1938
1939	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1940	my $hp = $exit->stats->hp;
1941	my $sp = $exit->stats->sp;
1942
1943	$self->enter_link;	2698	$self->enter_link;
1944		2699
1945	(async {	2700	(async {
1946	$self->deactivate_recursive; # just to be sure	2701	$Coro::current->{desc} = "enter_exit";
		2702
1947	unless (eval {	2703	unless (eval {
		2704	$self->deactivate_recursive; # just to be sure
		2705
		2706	# random map handling
		2707	{
		2708	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2709
		2710	prepare_random_map $exit
		2711	if $exit->slaying eq "/!";
		2712	}
		2713
		2714	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2715	my $x = $exit->stats->hp;
		2716	my $y = $exit->stats->sp;
		2717
1948	$self->goto ($slaying, $hp, $sp);	2718	$self->goto ($map, $x, $y);
1949		2719
		2720	# if exit is damned, update players death & WoR home-position
		2721	$self->contr->savebed ($map, $x, $y)
		2722	if $exit->flag (cf::FLAG_DAMNED);
		2723
1950	1;	2724	1
1951	}) {	2725	}) {
1952	$self->message ("Something went wrong deep within the crossfire server. "	2726	$self->message ("Something went wrong deep within the deliantra server. "
1953	. "I'll try to bring you back to the map you were before. "	2727	. "I'll try to bring you back to the map you were before. "
1954	. "Please report this to the dungeon master!",	2728	. "Please report this to the dungeon master!",
1955	cf::NDI_UNIQUE | cf::NDI_RED);	2729	cf::NDI_UNIQUE | cf::NDI_RED);
1956		2730
1957	warn "ERROR in enter_exit: $@";	2731	warn "ERROR in enter_exit: $@";
1958	$self->leave_link;	2732	$self->leave_link;
1959	}	2733	}
1960	})->prio (1);	2734	})->prio (1);
…		…
1973		2747
1974	sub cf::client::send_drawinfo {	2748	sub cf::client::send_drawinfo {
1975	my ($self, $text, $flags) = @_;	2749	my ($self, $text, $flags) = @_;
1976		2750
1977	utf8::encode $text;	2751	utf8::encode $text;
1978	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2752	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1979	}	2753	}
1980		2754
		2755	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2756
		2757	Send a drawinfo or msg packet to the client, formatting the msg for the
		2758	client if neccessary. C<$type> should be a string identifying the type of
		2759	the message, with C<log> being the default. If C<$color> is negative, suppress
		2760	the message unless the client supports the msg packet.
		2761
		2762	=cut
		2763
		2764	# non-persistent channels (usually the info channel)
		2765	our %CHANNEL = (
		2766	"c/identify" => {
		2767	id => "infobox",
		2768	title => "Identify",
		2769	reply => undef,
		2770	tooltip => "Items recently identified",
		2771	},
		2772	"c/examine" => {
		2773	id => "infobox",
		2774	title => "Examine",
		2775	reply => undef,
		2776	tooltip => "Signs and other items you examined",
		2777	},
		2778	"c/book" => {
		2779	id => "infobox",
		2780	title => "Book",
		2781	reply => undef,
		2782	tooltip => "The contents of a note or book",
		2783	},
		2784	"c/lookat" => {
		2785	id => "infobox",
		2786	title => "Look",
		2787	reply => undef,
		2788	tooltip => "What you saw there",
		2789	},
		2790	"c/who" => {
		2791	id => "infobox",
		2792	title => "Players",
		2793	reply => undef,
		2794	tooltip => "Shows players who are currently online",
		2795	},
		2796	"c/body" => {
		2797	id => "infobox",
		2798	title => "Body Parts",
		2799	reply => undef,
		2800	tooltip => "Shows which body parts you posess and are available",
		2801	},
		2802	"c/statistics" => {
		2803	id => "infobox",
		2804	title => "Statistics",
		2805	reply => undef,
		2806	tooltip => "Shows your primary statistics",
		2807	},
		2808	"c/skills" => {
		2809	id => "infobox",
		2810	title => "Skills",
		2811	reply => undef,
		2812	tooltip => "Shows your experience per skill and item power",
		2813	},
		2814	"c/shopitems" => {
		2815	id => "infobox",
		2816	title => "Shop Items",
		2817	reply => undef,
		2818	tooltip => "Shows the items currently for sale in this shop",
		2819	},
		2820	"c/resistances" => {
		2821	id => "infobox",
		2822	title => "Resistances",
		2823	reply => undef,
		2824	tooltip => "Shows your resistances",
		2825	},
		2826	"c/pets" => {
		2827	id => "infobox",
		2828	title => "Pets",
		2829	reply => undef,
		2830	tooltip => "Shows information abotu your pets/a specific pet",
		2831	},
		2832	"c/perceiveself" => {
		2833	id => "infobox",
		2834	title => "Perceive Self",
		2835	reply => undef,
		2836	tooltip => "You gained detailed knowledge about yourself",
		2837	},
		2838	"c/uptime" => {
		2839	id => "infobox",
		2840	title => "Uptime",
		2841	reply => undef,
		2842	tooltip => "How long the server has been running since last restart",
		2843	},
		2844	"c/mapinfo" => {
		2845	id => "infobox",
		2846	title => "Map Info",
		2847	reply => undef,
		2848	tooltip => "Information related to the maps",
		2849	},
		2850	"c/party" => {
		2851	id => "party",
		2852	title => "Party",
		2853	reply => "gsay ",
		2854	tooltip => "Messages and chat related to your party",
		2855	},
		2856	"c/death" => {
		2857	id => "death",
		2858	title => "Death",
		2859	reply => undef,
		2860	tooltip => "Reason for and more info about your most recent death",
		2861	},
		2862	"c/say" => $SAY_CHANNEL,
		2863	"c/chat" => $CHAT_CHANNEL,
		2864	);
		2865
		2866	sub cf::client::send_msg {
		2867	my ($self, $channel, $msg, $color, @extra) = @_;
		2868
		2869	$msg = $self->pl->expand_cfpod ($msg)
		2870	unless $color & cf::NDI_VERBATIM;
		2871
		2872	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2873
		2874	# check predefined channels, for the benefit of C
		2875	if ($CHANNEL{$channel}) {
		2876	$channel = $CHANNEL{$channel};
		2877
		2878	$self->ext_msg (channel_info => $channel);
		2879	$channel = $channel->{id};
		2880
		2881	} elsif (ref $channel) {
		2882	# send meta info to client, if not yet sent
		2883	unless (exists $self->{channel}{$channel->{id}}) {
		2884	$self->{channel}{$channel->{id}} = $channel;
		2885	$self->ext_msg (channel_info => $channel);
		2886	}
		2887
		2888	$channel = $channel->{id};
		2889	}
		2890
		2891	return unless @extra || length $msg;
		2892
		2893	# default colour, mask it out
		2894	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2895	if $color & cf::NDI_DEF;
		2896
		2897	my $pkt = "msg "
		2898	. $self->{json_coder}->encode (
		2899	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2900	);
		2901
		2902	# try lzf for large packets
		2903	$pkt = "lzf " . Compress::LZF::compress $pkt
		2904	if 1024 <= length $pkt and $self->{can_lzf};
		2905
		2906	# split very large packets
		2907	if (8192 < length $pkt and $self->{can_lzf}) {
		2908	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2909	$pkt = "frag";
		2910	}
		2911
		2912	$self->send_packet ($pkt);
		2913	}
		2914
		2915	=item $client->ext_msg ($type, @msg)
		2916
		2917	Sends an ext event to the client.
		2918
		2919	=cut
		2920
		2921	sub cf::client::ext_msg($$@) {
		2922	my ($self, $type, @msg) = @_;
		2923
		2924	if ($self->extcmd == 2) {
		2925	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2926	} elsif ($self->extcmd == 1) { # TODO: remove
		2927	push @msg, msgtype => "event_$type";
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2929	}
		2930	}
		2931
		2932	=item $client->ext_reply ($msgid, @msg)
		2933
		2934	Sends an ext reply to the client.
		2935
		2936	=cut
		2937
		2938	sub cf::client::ext_reply($$@) {
		2939	my ($self, $id, @msg) = @_;
		2940
		2941	if ($self->extcmd == 2) {
		2942	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2943	} elsif ($self->extcmd == 1) {
		2944	#TODO: version 1, remove
		2945	unshift @msg, msgtype => "reply", msgid => $id;
		2946	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2947	}
		2948	}
1981		2949
1982	=item $success = $client->query ($flags, "text", \&cb)	2950	=item $success = $client->query ($flags, "text", \&cb)
1983		2951
1984	Queues a query to the client, calling the given callback with	2952	Queues a query to the client, calling the given callback with
1985	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2953	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1986	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2954	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1987		2955
1988	Queries can fail, so check the return code. Or don't, as queries will become	2956	Queries can fail, so check the return code. Or don't, as queries will
1989	reliable at some point in the future.	2957	become reliable at some point in the future.
1990		2958
1991	=cut	2959	=cut
1992		2960
1993	sub cf::client::query {	2961	sub cf::client::query {
1994	my ($self, $flags, $text, $cb) = @_;	2962	my ($self, $flags, $text, $cb) = @_;
…		…
2002	utf8::encode $text;	2970	utf8::encode $text;
2003	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2971	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2004		2972
2005	$self->send_packet ($self->{query_queue}[0][0])	2973	$self->send_packet ($self->{query_queue}[0][0])
2006	if @{ $self->{query_queue} } == 1;	2974	if @{ $self->{query_queue} } == 1;
		2975
		2976	1
2007	}	2977	}
2008		2978
2009	cf::client->attach (	2979	cf::client->attach (
		2980	on_connect => sub {
		2981	my ($ns) = @_;
		2982
		2983	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2984	},
2010	on_reply => sub {	2985	on_reply => sub {
2011	my ($ns, $msg) = @_;	2986	my ($ns, $msg) = @_;
2012		2987
2013	# this weird shuffling is so that direct followup queries	2988	# this weird shuffling is so that direct followup queries
2014	# get handled first	2989	# get handled first
…		…
2026	} else {	3001	} else {
2027	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3002	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2028	}	3003	}
2029	}	3004	}
2030	},	3005	},
		3006	on_exticmd => sub {
		3007	my ($ns, $buf) = @_;
		3008
		3009	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3010
		3011	if (ref $msg) {
		3012	my ($type, $reply, @payload) =
		3013	"ARRAY" eq ref $msg
		3014	? @$msg
		3015	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3016
		3017	my @reply;
		3018
		3019	if (my $cb = $EXTICMD{$type}) {
		3020	@reply = $cb->($ns, @payload);
		3021	}
		3022
		3023	$ns->ext_reply ($reply, @reply)
		3024	if $reply;
		3025
		3026	} else {
		3027	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3028	}
		3029
		3030	cf::override;
		3031	},
2031	);	3032	);
2032		3033
2033	=item $client->async (\&cb)	3034	=item $client->async (\&cb)
2034		3035
2035	Create a new coroutine, running the specified callback. The coroutine will	3036	Create a new coroutine, running the specified callback. The coroutine will
…		…
2076	our $safe = new Safe "safe";	3077	our $safe = new Safe "safe";
2077	our $safe_hole = new Safe::Hole;	3078	our $safe_hole = new Safe::Hole;
2078		3079
2079	$SIG{FPE} = 'IGNORE';	3080	$SIG{FPE} = 'IGNORE';
2080		3081
2081	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3082	$safe->permit_only (Opcode::opset qw(
		3083	:base_core :base_mem :base_orig :base_math
		3084	grepstart grepwhile mapstart mapwhile
		3085	sort time
		3086	));
2082		3087
2083	# here we export the classes and methods available to script code	3088	# here we export the classes and methods available to script code
2084		3089
2085	=pod	3090	=pod
2086		3091
2087	The following fucntions and emthods are available within a safe environment:	3092	The following functions and methods are available within a safe environment:
2088		3093
2089	cf::object contr pay_amount pay_player map	3094	cf::object
		3095	contr pay_amount pay_player map x y force_find force_add destroy
		3096	insert remove name archname title slaying race decrease split
		3097	value
		3098
2090	cf::object::player player	3099	cf::object::player
2091	cf::player peaceful	3100	player
2092	cf::map trigger	3101
		3102	cf::player
		3103	peaceful
		3104
		3105	cf::map
		3106	trigger
2093		3107
2094	=cut	3108	=cut
2095		3109
2096	for (	3110	for (
2097	["cf::object" => qw(contr pay_amount pay_player map)],	3111	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3112	insert remove inv nrof name archname title slaying race
		3113	decrease split destroy change_exp value msg lore send_msg)],
2098	["cf::object::player" => qw(player)],	3114	["cf::object::player" => qw(player)],
2099	["cf::player" => qw(peaceful)],	3115	["cf::player" => qw(peaceful send_msg)],
2100	["cf::map" => qw(trigger)],	3116	["cf::map" => qw(trigger)],
2101	) {	3117	) {
2102	no strict 'refs';	3118	no strict 'refs';
2103	my ($pkg, @funs) = @$_;	3119	my ($pkg, @funs) = @$_;
2104	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3120	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2121	my ($code, %vars) = @_;	3137	my ($code, %vars) = @_;
2122		3138
2123	my $qcode = $code;	3139	my $qcode = $code;
2124	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3140	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2125	$qcode =~ s/\n/\\n/g;	3141	$qcode =~ s/\n/\\n/g;
		3142
		3143	%vars = (_dummy => 0) unless %vars;
2126		3144
2127	local $_;	3145	local $_;
2128	local @safe::cf::_safe_eval_args = values %vars;	3146	local @safe::cf::_safe_eval_args = values %vars;
2129		3147
2130	my $eval =	3148	my $eval =
…		…
2173	=back	3191	=back
2174		3192
2175	=cut	3193	=cut
2176		3194
2177	#############################################################################	3195	#############################################################################
		3196	# the server's init and main functions
2178		3197
2179	=head2 EXTENSION DATABASE SUPPORT	3198	sub load_facedata($) {
		3199	my ($path) = @_;
2180		3200
2181	Crossfire maintains a very simple database for extension use. It can	3201	# HACK to clear player env face cache, we need some signal framework
2182	currently store anything that can be serialised using Storable, which	3202	# for this (global event?)
2183	excludes objects.	3203	%ext::player_env::MUSIC_FACE_CACHE = ();
2184		3204
2185	The parameter C<$family> should best start with the name of the extension	3205	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2186	using it, it should be unique.
2187		3206
2188	=over 4	3207	warn "loading facedata from $path\n";
2189		3208
2190	=item $value = cf::db_get $family => $key	3209	my $facedata;
		3210	0 < aio_load $path, $facedata
		3211	or die "$path: $!";
2191		3212
2192	Returns a single value from the database.	3213	$facedata = Coro::Storable::thaw $facedata;
2193		3214
2194	=item cf::db_put $family => $key => $value	3215	$facedata->{version} == 2
		3216	or cf::cleanup "$path: version mismatch, cannot proceed.";
2195		3217
2196	Stores the given C<$value> in the family.	3218	# patch in the exptable
2197		3219	$facedata->{resource}{"res/exp_table"} = {
2198	=cut	3220	type => FT_RSRC,
2199		3221	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2200	our $DB;
2201
2202	unless ($DB) {
2203	$DB = BDB::db_create $DB_ENV;
2204
2205	cf::sync_job {
2206	eval {
2207	$DB->set_flags (BDB::CHKSUM);
2208
2209	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2210	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2211	cf::cleanup "db_open(db): $!" if $!;
2212	};
2213	cf::cleanup "db_open(db): $@" if $@;
2214	};	3222	};
		3223	cf::cede_to_tick;
2215		3224
2216	my $path = cf::localdir . "/database.pst";	3225	{
2217	if (stat $path) {	3226	my $faces = $facedata->{faceinfo};
2218	cf::sync_job {
2219	my $pst = Storable::retrieve $path;
2220		3227
2221	cf::db_put (board => data => $pst->{board});	3228	while (my ($face, $info) = each %$faces) {
2222	cf::db_put (guildrules => data => $pst->{guildrules});	3229	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2223	cf::db_put (rent => balance => $pst->{rent}{balance});
2224	BDB::db_env_txn_checkpoint $DB_ENV;
2225		3230
2226	unlink $path;	3231	cf::face::set_visibility $idx, $info->{visibility};
		3232	cf::face::set_magicmap $idx, $info->{magicmap};
		3233	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3234	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3235
		3236	cf::cede_to_tick;
2227	};	3237	}
		3238
		3239	while (my ($face, $info) = each %$faces) {
		3240	next unless $info->{smooth};
		3241
		3242	my $idx = cf::face::find $face
		3243	or next;
		3244
		3245	if (my $smooth = cf::face::find $info->{smooth}) {
		3246	cf::face::set_smooth $idx, $smooth;
		3247	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3248	} else {
		3249	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3250	}
		3251
		3252	cf::cede_to_tick;
		3253	}
		3254	}
		3255
2228	}	3256	{
2229	}	3257	my $anims = $facedata->{animinfo};
2230		3258
2231	sub db_get($$) {	3259	while (my ($anim, $info) = each %$anims) {
2232	my $key = "$_[0]/$_[1]";	3260	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3261	cf::cede_to_tick;
		3262	}
2233		3263
2234	cf::sync_job {	3264	cf::anim::invalidate_all; # d'oh
2235	BDB::db_get $DB, undef, $key, my $data;	3265	}
2236		3266
2237	$! ? ()
2238	: Compress::LZF::sthaw $data
2239	}	3267	{
2240	}	3268	# TODO: for gcfclient pleasure, we should give resources
		3269	# that gcfclient doesn't grok a >10000 face index.
		3270	my $res = $facedata->{resource};
2241		3271
2242	sub db_put($$$) {	3272	while (my ($name, $info) = each %$res) {
2243	BDB::dbreq_pri 4;	3273	if (defined $info->{type}) {
2244	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };	3274	my $idx = (cf::face::find $name) || cf::face::alloc $name;
2245	}	3275	my $data;
2246		3276
2247	#############################################################################	3277	if ($info->{type} & 1) {
2248	# the server's init and main functions	3278	# prepend meta info
2249		3279
		3280	my $meta = $enc->encode ({
		3281	name => $name,
		3282	%{ $info->{meta} || {} },
		3283	});
		3284
		3285	$data = pack "(w/a*)*", $meta, $info->{data};
		3286	} else {
		3287	$data = $info->{data};
		3288	}
		3289
		3290	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3291	cf::face::set_type $idx, $info->{type};
		3292	} else {
		3293	$RESOURCE{$name} = $info;
		3294	}
		3295
		3296	cf::cede_to_tick;
		3297	}
		3298	}
		3299
		3300	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3301
		3302	1
		3303	}
		3304
		3305	cf::global->attach (on_resource_update => sub {
		3306	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3307	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3308
		3309	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3310	my $sound = $soundconf->{compat}[$_]
		3311	or next;
		3312
		3313	my $face = cf::face::find "sound/$sound->[1]";
		3314	cf::sound::set $sound->[0] => $face;
		3315	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3316	}
		3317
		3318	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3319	my $face = cf::face::find "sound/$v";
		3320	cf::sound::set $k => $face;
		3321	}
		3322	}
		3323	});
		3324
		3325	register_exticmd fx_want => sub {
		3326	my ($ns, $want) = @_;
		3327
		3328	while (my ($k, $v) = each %$want) {
		3329	$ns->fx_want ($k, $v);
		3330	}
		3331	};
		3332
2250	sub load_resources {	3333	sub load_resource_file($) {
2251	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3334	my $guard = lock_acquire "load_resource_file";
		3335
		3336	my $status = load_resource_file_ $_[0];
		3337	get_slot 0.1, 100;
		3338	cf::arch::commit_load;
		3339
		3340	$status
		3341	}
		3342
		3343	sub reload_regions {
		3344	# HACK to clear player env face cache, we need some signal framework
		3345	# for this (global event?)
		3346	%ext::player_env::MUSIC_FACE_CACHE = ();
		3347
		3348	load_resource_file "$MAPDIR/regions"
2252	or die "unable to load regions file\n";#d#	3349	or die "unable to load regions file\n";
2253	}
2254		3350
2255	sub cfg_load {	3351	for (cf::region::list) {
		3352	$_->{match} = qr/$_->{match}/
		3353	if exists $_->{match};
		3354	}
		3355	}
		3356
		3357	sub reload_facedata {
		3358	load_facedata "$DATADIR/facedata"
		3359	or die "unable to load facedata\n";
		3360	}
		3361
		3362	sub reload_archetypes {
		3363	load_resource_file "$DATADIR/archetypes"
		3364	or die "unable to load archetypes\n";
		3365	}
		3366
		3367	sub reload_treasures {
		3368	load_resource_file "$DATADIR/treasures"
		3369	or die "unable to load treasurelists\n";
		3370	}
		3371
		3372	sub reload_resources {
		3373	warn "reloading resource files...\n";
		3374
		3375	reload_facedata;
		3376	reload_archetypes;
		3377	reload_regions;
		3378	reload_treasures;
		3379
		3380	warn "finished reloading resource files\n";
		3381	}
		3382
		3383	sub reload_config {
2256	open my $fh, "<:utf8", cf::confdir . "/config"	3384	open my $fh, "<:utf8", "$CONFDIR/config"
2257	or return;	3385	or return;
2258		3386
2259	local $/;	3387	local $/;
2260	*CFG = YAML::Syck::Load <$fh>;	3388	*CFG = YAML::Load <$fh>;
2261		3389
2262	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3390	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2263		3391
2264	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3392	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2265	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3393	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2271	};	3399	};
2272	warn $@ if $@;	3400	warn $@ if $@;
2273	}	3401	}
2274	}	3402	}
2275		3403
2276	sub init {	3404	sub pidfile() {
2277	load_resources;	3405	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3406	or die "$PIDFILE: $!";
		3407	flock $fh, &Fcntl::LOCK_EX
		3408	or die "$PIDFILE: flock: $!";
		3409	$fh
		3410	}
		3411
		3412	# make sure only one server instance is running at any one time
		3413	sub atomic {
		3414	my $fh = pidfile;
		3415
		3416	my $pid = <$fh>;
		3417	kill 9, $pid if $pid > 0;
		3418
		3419	seek $fh, 0, 0;
		3420	print $fh $$;
		3421	}
		3422
		3423	sub main_loop {
		3424	warn "EV::loop starting\n";
		3425	if (1) {
		3426	EV::loop;
		3427	}
		3428	warn "EV::loop returned\n";
		3429	goto &main_loop unless $REALLY_UNLOOP;
2278	}	3430	}
2279		3431
2280	sub main {	3432	sub main {
		3433	cf::init_globals; # initialise logging
		3434
		3435	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3436	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3437	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3438	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3439
		3440	cf::init_experience;
		3441	cf::init_anim;
		3442	cf::init_attackmess;
		3443	cf::init_dynamic;
		3444
		3445	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3446
2281	# we must not ever block the main coroutine	3447	# we must not ever block the main coroutine
2282	local $Coro::idle = sub {	3448	local $Coro::idle = sub {
2283	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3449	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2284	(async {	3450	(async {
2285	Event::one_event;	3451	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3452	EV::loop EV::LOOP_ONESHOT;
2286	})->prio (Coro::PRIO_MAX);	3453	})->prio (Coro::PRIO_MAX);
2287	};	3454	};
2288		3455
2289	cfg_load;	3456	evthread_start IO::AIO::poll_fileno;
		3457
		3458	cf::sync_job {
		3459	reload_resources;
		3460	reload_config;
		3461	db_init;
		3462
		3463	cf::load_settings;
		3464	cf::load_materials;
		3465	cf::init_uuid;
		3466	cf::init_signals;
		3467	cf::init_commands;
		3468	cf::init_skills;
		3469
		3470	cf::init_beforeplay;
		3471
		3472	atomic;
		3473
2290	load_extensions;	3474	load_extensions;
2291		3475
2292	$TICK_WATCHER->start;	3476	utime time, time, $RUNTIMEFILE;
2293	Event::loop;	3477
		3478	# no (long-running) fork's whatsoever before this point(!)
		3479	use POSIX ();
		3480	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3481
		3482	(pop @POST_INIT)->(0) while @POST_INIT;
		3483	};
		3484
		3485	main_loop;
2294	}	3486	}
2295		3487
2296	#############################################################################	3488	#############################################################################
2297	# initialisation and cleanup	3489	# initialisation and cleanup
2298		3490
2299	# install some emergency cleanup handlers	3491	# install some emergency cleanup handlers
2300	BEGIN {	3492	BEGIN {
		3493	our %SIGWATCHER = ();
2301	for my $signal (qw(INT HUP TERM)) {	3494	for my $signal (qw(INT HUP TERM)) {
2302	Event->signal (	3495	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2303	reentrant => 0,
2304	data => WF_AUTOCANCEL,
2305	signal => $signal,
2306	prio => 0,
2307	cb => sub {
2308	cf::cleanup "SIG$signal";	3496	cf::cleanup "SIG$signal";
2309	},
2310	);	3497	};
		3498	}
		3499	}
		3500
		3501	sub write_runtime_sync {
		3502	# first touch the runtime file to show we are still running:
		3503	# the fsync below can take a very very long time.
		3504
		3505	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3506
		3507	my $guard = cf::lock_acquire "write_runtime";
		3508
		3509	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3510	or return;
		3511
		3512	my $value = $cf::RUNTIME + 90 + 10;
		3513	# 10 is the runtime save interval, for a monotonic clock
		3514	# 60 allows for the watchdog to kill the server.
		3515
		3516	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3517	and return;
		3518
		3519	# always fsync - this file is important
		3520	aio_fsync $fh
		3521	and return;
		3522
		3523	# touch it again to show we are up-to-date
		3524	aio_utime $fh, undef, undef;
		3525
		3526	close $fh
		3527	or return;
		3528
		3529	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3530	and return;
		3531
		3532	warn "runtime file written.\n";
		3533
2311	}	3534	1
		3535	}
		3536
		3537	our $uuid_lock;
		3538	our $uuid_skip;
		3539
		3540	sub write_uuid_sync($) {
		3541	$uuid_skip ||= $_[0];
		3542
		3543	return if $uuid_lock;
		3544	local $uuid_lock = 1;
		3545
		3546	my $uuid = "$LOCALDIR/uuid";
		3547
		3548	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3549	or return;
		3550
		3551	my $value = uuid_seq uuid_cur;
		3552
		3553	unless ($value) {
		3554	warn "cowardly refusing to write zero uuid value!\n";
		3555	return;
		3556	}
		3557
		3558	my $value = uuid_str $value + $uuid_skip;
		3559	$uuid_skip = 0;
		3560
		3561	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3562	and return;
		3563
		3564	# always fsync - this file is important
		3565	aio_fsync $fh
		3566	and return;
		3567
		3568	close $fh
		3569	or return;
		3570
		3571	aio_rename "$uuid~", $uuid
		3572	and return;
		3573
		3574	warn "uuid file written ($value).\n";
		3575
		3576	1
		3577
		3578	}
		3579
		3580	sub write_uuid($$) {
		3581	my ($skip, $sync) = @_;
		3582
		3583	$sync ? write_uuid_sync $skip
		3584	: async { write_uuid_sync $skip };
2312	}	3585	}
2313		3586
2314	sub emergency_save() {	3587	sub emergency_save() {
2315	my $freeze_guard = cf::freeze_mainloop;	3588	my $freeze_guard = cf::freeze_mainloop;
2316		3589
2317	warn "enter emergency perl save\n";	3590	warn "emergency_perl_save: enter\n";
2318		3591
2319	cf::sync_job {	3592	cf::sync_job {
		3593	# this is a trade-off: we want to be very quick here, so
		3594	# save all maps without fsync, and later call a global sync
		3595	# (which in turn might be very very slow)
		3596	local $USE_FSYNC = 0;
		3597
2320	# use a peculiar iteration method to avoid tripping on perl	3598	# use a peculiar iteration method to avoid tripping on perl
2321	# refcount bugs in for. also avoids problems with players	3599	# refcount bugs in for. also avoids problems with players
2322	# and maps saved/destroyed asynchronously.	3600	# and maps saved/destroyed asynchronously.
2323	warn "begin emergency player save\n";	3601	warn "emergency_perl_save: begin player save\n";
2324	for my $login (keys %cf::PLAYER) {	3602	for my $login (keys %cf::PLAYER) {
2325	my $pl = $cf::PLAYER{$login} or next;	3603	my $pl = $cf::PLAYER{$login} or next;
2326	$pl->valid or next;	3604	$pl->valid or next;
		3605	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2327	$pl->save;	3606	$pl->save;
2328	}	3607	}
2329	warn "end emergency player save\n";	3608	warn "emergency_perl_save: end player save\n";
2330		3609
2331	warn "begin emergency map save\n";	3610	warn "emergency_perl_save: begin map save\n";
2332	for my $path (keys %cf::MAP) {	3611	for my $path (keys %cf::MAP) {
2333	my $map = $cf::MAP{$path} or next;	3612	my $map = $cf::MAP{$path} or next;
2334	$map->valid or next;	3613	$map->valid or next;
2335	$map->save;	3614	$map->save;
2336	}	3615	}
2337	warn "end emergency map save\n";	3616	warn "emergency_perl_save: end map save\n";
2338		3617
2339	warn "begin emergency database checkpoint\n";	3618	warn "emergency_perl_save: begin database checkpoint\n";
2340	BDB::db_env_txn_checkpoint $DB_ENV;	3619	BDB::db_env_txn_checkpoint $DB_ENV;
2341	warn "end emergency database checkpoint\n";	3620	warn "emergency_perl_save: end database checkpoint\n";
		3621
		3622	warn "emergency_perl_save: begin write uuid\n";
		3623	write_uuid_sync 1;
		3624	warn "emergency_perl_save: end write uuid\n";
2342	};	3625	};
2343		3626
		3627	warn "emergency_perl_save: starting sync()\n";
		3628	IO::AIO::aio_sync sub {
		3629	warn "emergency_perl_save: finished sync()\n";
		3630	};
		3631
2344	warn "leave emergency perl save\n";	3632	warn "emergency_perl_save: leave\n";
2345	}	3633	}
2346		3634
		3635	sub post_cleanup {
		3636	my ($make_core) = @_;
		3637
		3638	warn Carp::longmess "post_cleanup backtrace"
		3639	if $make_core;
		3640
		3641	my $fh = pidfile;
		3642	unlink $PIDFILE if <$fh> == $$;
		3643	}
		3644
		3645	# a safer delete_package, copied from Symbol
		3646	sub clear_package($) {
		3647	my $pkg = shift;
		3648
		3649	# expand to full symbol table name if needed
		3650	unless ($pkg =~ /^main::.*::$/) {
		3651	$pkg = "main$pkg" if $pkg =~ /^::/;
		3652	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3653	$pkg .= '::' unless $pkg =~ /::$/;
		3654	}
		3655
		3656	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3657	my $stem_symtab = *{$stem}{HASH};
		3658
		3659	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3660	or return;
		3661
		3662	# clear all symbols
		3663	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3664	for my $name (keys %$leaf_symtab) {
		3665	_gv_clear *{"$pkg$name"};
		3666	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3667	}
		3668	warn "cleared package $pkg\n";#d#
		3669	}
		3670
2347	sub reload() {	3671	sub do_reload_perl() {
2348	# can/must only be called in main	3672	# can/must only be called in main
2349	if ($Coro::current != $Coro::main) {	3673	if ($Coro::current != $Coro::main) {
2350	warn "can only reload from main coroutine";	3674	warn "can only reload from main coroutine";
2351	return;	3675	return;
2352	}	3676	}
2353		3677
		3678	return if $RELOAD++;
		3679
		3680	my $t1 = EV::time;
		3681
		3682	while ($RELOAD) {
2354	warn "reloading...";	3683	warn "reloading...";
2355		3684
2356	warn "cancelling server ticker";	3685	warn "entering sync_job";
2357	$TICK_WATCHER->cancel;
2358		3686
		3687	cf::sync_job {
		3688	cf::write_runtime_sync; # external watchdog should not bark
2359	cf::emergency_save;	3689	cf::emergency_save;
		3690	cf::write_runtime_sync; # external watchdog should not bark
2360		3691
2361	eval {	3692	warn "syncing database to disk";
		3693	BDB::db_env_txn_checkpoint $DB_ENV;
		3694
2362	# if anything goes wrong in here, we should simply crash as we already saved	3695	# if anything goes wrong in here, we should simply crash as we already saved
2363		3696
2364	warn "cancelling all WF_AUTOCANCEL watchers";
2365	for (Event::all_watchers) {
2366	$_->cancel if $_->data & WF_AUTOCANCEL;
2367	}
2368
2369	warn "syncing database to disk";
2370	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2371
2372	warn "flushing outstanding aio requests";	3697	warn "flushing outstanding aio requests";
2373	for (;;) {
2374	BDB::flush;
2375	IO::AIO::flush;
2376	Coro::cede;
2377	last unless IO::AIO::nreqs || BDB::nreqs;	3698	while (IO::AIO::nreqs || BDB::nreqs) {
2378	warn "iterate...";	3699	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2379	}
2380
2381	warn "cancelling all extension coros";
2382	$_->cancel for values %EXT_CORO;
2383	%EXT_CORO = ();
2384
2385	warn "removing commands";
2386	%COMMAND = ();
2387
2388	warn "removing ext commands";
2389	%EXTCMD = ();
2390
2391	warn "unloading/nuking all extensions";
2392	for my $pkg (@EXTS) {
2393	warn "... unloading $pkg";
2394
2395	if (my $cb = $pkg->can ("unload")) {
2396	eval {
2397	$cb->($pkg);
2398	1
2399	} or warn "$pkg unloaded, but with errors: $@";
2400	}	3700	}
2401		3701
2402	warn "... nuking $pkg";	3702	warn "cancelling all extension coros";
2403	Symbol::delete_package $pkg;	3703	$_->cancel for values %EXT_CORO;
2404	}	3704	%EXT_CORO = ();
2405		3705
2406	warn "unloading all perl modules loaded from $LIBDIR";	3706	warn "removing commands";
2407	while (my ($k, $v) = each %INC) {	3707	%COMMAND = ();
2408	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2409		3708
		3709	warn "removing ext/exti commands";
		3710	%EXTCMD = ();
		3711	%EXTICMD = ();
		3712
		3713	warn "unloading/nuking all extensions";
		3714	for my $pkg (@EXTS) {
2410	warn "... unloading $k";	3715	warn "... unloading $pkg";
2411	delete $INC{$k};
2412		3716
2413	$k =~ s/\.pm$//;
2414	$k =~ s/\//::/g;
2415
2416	if (my $cb = $k->can ("unload_module")) {	3717	if (my $cb = $pkg->can ("unload")) {
		3718	eval {
2417	$cb->();	3719	$cb->($pkg);
		3720	1
		3721	} or warn "$pkg unloaded, but with errors: $@";
		3722	}
		3723
		3724	warn "... clearing $pkg";
		3725	clear_package $pkg;
2418	}	3726	}
2419		3727
2420	Symbol::delete_package $k;	3728	warn "unloading all perl modules loaded from $LIBDIR";
		3729	while (my ($k, $v) = each %INC) {
		3730	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3731
		3732	warn "... unloading $k";
		3733	delete $INC{$k};
		3734
		3735	$k =~ s/\.pm$//;
		3736	$k =~ s/\//::/g;
		3737
		3738	if (my $cb = $k->can ("unload_module")) {
		3739	$cb->();
		3740	}
		3741
		3742	clear_package $k;
2421	}	3743	}
2422		3744
2423	warn "getting rid of safe::, as good as possible";	3745	warn "getting rid of safe::, as good as possible";
2424	Symbol::delete_package "safe::$_"	3746	clear_package "safe::$_"
2425	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3747	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2426		3748
2427	warn "unloading cf.pm \"a bit\"";	3749	warn "unloading cf.pm \"a bit\"";
2428	delete $INC{"cf.pm"};	3750	delete $INC{"cf.pm"};
		3751	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2429		3752
2430	# don't, removes xs symbols, too,	3753	# don't, removes xs symbols, too,
2431	# and global variables created in xs	3754	# and global variables created in xs
2432	#Symbol::delete_package __PACKAGE__;	3755	#clear_package __PACKAGE__;
2433		3756
2434	warn "unload completed, starting to reload now";	3757	warn "unload completed, starting to reload now";
2435		3758
2436	warn "reloading cf.pm";	3759	warn "reloading cf.pm";
2437	require cf;	3760	require cf;
2438	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3761	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2439		3762
2440	warn "loading config and database again";	3763	warn "loading config and database again";
2441	cf::cfg_load;	3764	cf::reload_config;
2442		3765
2443	warn "loading extensions";	3766	warn "loading extensions";
2444	cf::load_extensions;	3767	cf::load_extensions;
2445		3768
		3769	if ($REATTACH_ON_RELOAD) {
2446	warn "reattaching attachments to objects/players";	3770	warn "reattaching attachments to objects/players";
2447	_global_reattach;	3771	_global_reattach; # objects, sockets
2448	warn "reattaching attachments to maps";	3772	warn "reattaching attachments to maps";
2449	reattach $_ for values %MAP;	3773	reattach $_ for values %MAP;
		3774	warn "reattaching attachments to players";
		3775	reattach $_ for values %PLAYER;
		3776	}
2450		3777
2451	warn "loading reloadable resources";	3778	warn "running post_init jobs";
2452	load_resources;	3779	(pop @POST_INIT)->(1) while @POST_INIT;
2453		3780
2454	warn "restarting server ticker";	3781	warn "leaving sync_job";
2455		3782
2456	$TICK_WATCHER->start;	3783	1
		3784	} or do {
		3785	warn $@;
		3786	cf::cleanup "error while reloading, exiting.";
		3787	};
		3788
		3789	warn "reloaded";
		3790	--$RELOAD;
		3791	}
		3792
		3793	$t1 = EV::time - $t1;
		3794	warn "reload completed in ${t1}s\n";
		3795	};
		3796
		3797	our $RELOAD_WATCHER; # used only during reload
		3798
		3799	sub reload_perl() {
		3800	# doing reload synchronously and two reloads happen back-to-back,
		3801	# coro crashes during coro_state_free->destroy here.
		3802
		3803	$RELOAD_WATCHER ||= cf::async {
		3804	Coro::AIO::aio_wait cache_extensions;
		3805
		3806	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3807	do_reload_perl;
		3808	undef $RELOAD_WATCHER;
		3809	};
2457	};	3810	};
2458		3811	}
2459	if ($@) {
2460	warn $@;
2461	warn "error while reloading, exiting.";
2462	exit 1;
2463	}
2464
2465	warn "reloaded";
2466	};
2467
2468	our $RELOAD_WATCHER; # used only during reload
2469		3812
2470	register_command "reload" => sub {	3813	register_command "reload" => sub {
2471	my ($who, $arg) = @_;	3814	my ($who, $arg) = @_;
2472		3815
2473	if ($who->flag (FLAG_WIZ)) {	3816	if ($who->flag (FLAG_WIZ)) {
2474	$who->message ("reloading server.");	3817	$who->message ("reloading server.");
2475		3818	async {
2476	# doing reload synchronously and two reloads happen back-to-back,	3819	$Coro::current->{desc} = "perl_reload";
2477	# coro crashes during coro_state_free->destroy here.
2478
2479	$RELOAD_WATCHER ||= Event->timer (
2480	reentrant => 0,
2481	after => 0,
2482	data => WF_AUTOCANCEL,
2483	cb => sub {
2484	reload;	3820	reload_perl;
2485	undef $RELOAD_WATCHER;
2486	},
2487	);	3821	};
2488	}	3822	}
2489	};	3823	};
2490		3824
2491	unshift @INC, $LIBDIR;	3825	unshift @INC, $LIBDIR;
2492		3826
2493	my $bug_warning = 0;	3827	my $bug_warning = 0;
2494		3828
2495	$TICK_WATCHER = Event->timer (	3829	our @WAIT_FOR_TICK;
2496	reentrant => 0,	3830	our @WAIT_FOR_TICK_BEGIN;
2497	parked => 1,	3831
2498	prio => 0,	3832	sub wait_for_tick {
2499	at => $NEXT_TICK || $TICK,	3833	return if tick_inhibit || $Coro::current == $Coro::main;
2500	data => WF_AUTOCANCEL,	3834
2501	cb => sub {	3835	my $signal = new Coro::Signal;
		3836	push @WAIT_FOR_TICK, $signal;
		3837	$signal->wait;
		3838	}
		3839
		3840	sub wait_for_tick_begin {
		3841	return if tick_inhibit || $Coro::current == $Coro::main;
		3842
		3843	my $signal = new Coro::Signal;
		3844	push @WAIT_FOR_TICK_BEGIN, $signal;
		3845	$signal->wait;
		3846	}
		3847
		3848	sub tick {
2502	if ($Coro::current != $Coro::main) {	3849	if ($Coro::current != $Coro::main) {
2503	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3850	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2504	unless ++$bug_warning > 10;	3851	unless ++$bug_warning > 10;
2505	return;	3852	return;
2506	}	3853	}
2507		3854
2508	$NOW = Event::time;
2509
2510	cf::server_tick; # one server iteration	3855	cf::server_tick; # one server iteration
2511	$RUNTIME += $TICK;
2512	$NEXT_TICK += $TICK;
2513		3856
2514	$WAIT_FOR_TICK->broadcast;	3857	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2515	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3858	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3859	Coro::async_pool {
		3860	$Coro::current->{desc} = "runtime saver";
		3861	write_runtime_sync
		3862	or warn "ERROR: unable to write runtime file: $!";
		3863	};
		3864	}
2516		3865
2517	Event::sweep;	3866	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2518	Coro::cede_notself;	3867	$sig->send;
		3868	}
		3869	while (my $sig = shift @WAIT_FOR_TICK) {
		3870	$sig->send;
		3871	}
		3872
		3873	$LOAD = ($NOW - $TICK_START) / $TICK;
		3874	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3875
		3876	if (0) {
		3877	if ($NEXT_TICK) {
		3878	my $jitter = $TICK_START - $NEXT_TICK;
		3879	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3880	warn "jitter $JITTER\n";#d#
2519		3881	}
2520	# my $AFTER = Event::time;
2521	# warn $AFTER - $NOW;#d#
2522
2523	# if we are delayed by four ticks or more, skip them all
2524	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2525
2526	$TICK_WATCHER->at ($NEXT_TICK);
2527	$TICK_WATCHER->start;
2528	},	3882	}
2529	);	3883	}
2530		3884
2531	{	3885	{
2532	BDB::max_poll_time $TICK * 0.1;	3886	# configure BDB
2533	$BDB_POLL_WATCHER = Event->io (	3887
2534	reentrant => 0,
2535	fd => BDB::poll_fileno,
2536	poll => 'r',
2537	prio => 0,
2538	data => WF_AUTOCANCEL,
2539	cb => \&BDB::poll_cb,
2540	);
2541	BDB::min_parallel 8;	3888	BDB::min_parallel 8;
2542		3889	BDB::max_poll_reqs $TICK * 0.1;
2543	BDB::set_sync_prepare {	3890	$AnyEvent::BDB::WATCHER->priority (1);
2544	my $status;
2545	my $current = $Coro::current;
2546	(
2547	sub {
2548	$status = $!;
2549	$current->ready; undef $current;
2550	},
2551	sub {
2552	Coro::schedule while defined $current;
2553	$! = $status;
2554	},
2555	)
2556	};
2557		3891
2558	unless ($DB_ENV) {	3892	unless ($DB_ENV) {
2559	$DB_ENV = BDB::db_env_create;	3893	$DB_ENV = BDB::db_env_create;
		3894	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3895	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3896	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3897	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3898	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2560		3899
2561	cf::sync_job {	3900	cf::sync_job {
2562	eval {	3901	eval {
2563	BDB::db_env_open	3902	BDB::db_env_open
2564	$DB_ENV,	3903	$DB_ENV,
2565	$BDB_ENV_DIR,	3904	$BDBDIR,
2566	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3905	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2567	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3906	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2568	0666;	3907	0666;
2569		3908
2570	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3909	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2571
2572	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2573	$DB_ENV->set_lk_detect;
2574	};	3910	};
2575		3911
2576	cf::cleanup "db_env_open(db): $@" if $@;	3912	cf::cleanup "db_env_open(db): $@" if $@;
2577	};	3913	};
2578	}	3914	}
		3915
		3916	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3917	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3918	};
		3919	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3920	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3921	};
		3922	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3923	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3924	};
2579	}	3925	}
2580		3926
2581	{	3927	{
		3928	# configure IO::AIO
		3929
2582	IO::AIO::min_parallel 8;	3930	IO::AIO::min_parallel 8;
2583
2584	undef $Coro::AIO::WATCHER;
2585	IO::AIO::max_poll_time $TICK * 0.1;	3931	IO::AIO::max_poll_time $TICK * 0.1;
2586	$AIO_POLL_WATCHER = Event->io (	3932	undef $AnyEvent::AIO::WATCHER;
2587	reentrant => 0,
2588	fd => IO::AIO::poll_fileno,
2589	poll => 'r',
2590	prio => 6,
2591	data => WF_AUTOCANCEL,
2592	cb => \&IO::AIO::poll_cb,
2593	);
2594	}	3933	}
2595		3934
2596	$WRITE_RUNTIME_WATCHER = Event->timer (	3935	my $_log_backtrace;
2597	reentrant => 0,	3936
2598	data => WF_AUTOCANCEL,	3937	sub _log_backtrace {
2599	after => 1,	3938	my ($msg, @addr) = @_;
2600	interval => 10,	3939
2601	prio => 6, # keep it lowest so it acts like a watchdog	3940	$msg =~ s/\n//;
2602	cb => Coro::unblock_sub {	3941
2603	write_runtime	3942	# limit the # of concurrent backtraces
2604	or warn "ERROR: unable to write runtime file: $!";	3943	if ($_log_backtrace < 2) {
		3944	++$_log_backtrace;
		3945	my $perl_bt = Carp::longmess $msg;
		3946	async {
		3947	$Coro::current->{desc} = "abt $msg";
		3948
		3949	my @bt = fork_call {
		3950	@addr = map { sprintf "%x", $_ } @addr;
		3951	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3952	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3953	or die "addr2line: $!";
		3954
		3955	my @funcs;
		3956	my @res = <$fh>;
		3957	chomp for @res;
		3958	while (@res) {
		3959	my ($func, $line) = splice @res, 0, 2, ();
		3960	push @funcs, "[$func] $line";
		3961	}
		3962
		3963	@funcs
		3964	};
		3965
		3966	LOG llevInfo, "[ABT] $perl_bt\n";
		3967	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3968	LOG llevInfo, "[ABT] $_\n" for @bt;
		3969	--$_log_backtrace;
		3970	};
		3971	} else {
		3972	LOG llevInfo, "[ABT] $msg\n";
		3973	LOG llevInfo, "[ABT] [suppressed]\n";
2605	},	3974	}
2606	);	3975	}
		3976
		3977	# load additional modules
		3978	require "cf/$_.pm" for @EXTRA_MODULES;
2607		3979
2608	END { cf::emergency_save }	3980	END { cf::emergency_save }
2609		3981
2610	1	3982	1
2611		3983

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