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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.186 by root, Sat Jan 20 01:12:39 2007 UTC vs.
Revision 1.448 by root, Fri Sep 19 05:30:23 2008 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 "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
13	use Coro 3.4 ();	37	use Coro ();
		38	use Coro::State;
		39	use Coro::Handle;
		40	use Coro::EV;
14	use Coro::Event;	41	use Coro::AnyEvent;
15	use Coro::Timer;	42	use Coro::Timer;
16	use Coro::Signal;	43	use Coro::Signal;
17	use Coro::Semaphore;	44	use Coro::Semaphore;
		45	use Coro::AnyEvent;
18	use Coro::AIO;	46	use Coro::AIO;
		47	use Coro::BDB 1.6;
		48	use Coro::Storable;
		49	use Coro::Util ();
19		50
		51	use JSON::XS 2.01 ();
		52	use BDB ();
20	use Data::Dumper;	53	use Data::Dumper;
21	use Digest::MD5;	54	use Digest::MD5;
22	use Fcntl;	55	use Fcntl;
		56	use YAML ();
23	use IO::AIO 2.32 ();	57	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	58	use Time::HiRes;
		59	use Compress::LZF;
		60	use Digest::MD5 ();
26		61
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	62	AnyEvent::detect;
		63
		64	# configure various modules to our taste
		65	#
		66	$Storable::canonical = 1; # reduce rsync transfers
		67	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		68
		69	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		70
		71	{
		72	# very ugly, but ensure we acquire the storable lock
		73
		74	sub net_mstore {
		75	my $guard = Coro::Storable::guard;
		76	&Storable::net_mstore
		77	}
		78
		79	sub mretrieve {
		80	my $guard = Coro::Storable::guard;
		81	&Storable::mretrieve
		82	}
		83
		84	Compress::LZF::set_serializer "Coro::Storable", "cf::net_mstore", "cf::mretrieve";
		85	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		86	}
28		87
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	88	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		89
36	our %COMMAND = ();	90	our %COMMAND = ();
37	our %COMMAND_TIME = ();	91	our %COMMAND_TIME = ();
38		92
39	our @EXTS = (); # list of extension package names	93	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	94	our %EXTCMD = ();
		95	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	96	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	97	our %EXT_MAP = (); # pluggable maps
43		98
		99	our $RELOAD; # number of reloads so far
44	our @EVENT;	100	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		101
47	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	103	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	104	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	105	our $PODDIR = "$DATADIR/pod";
		106	our $MAPDIR = "$DATADIR/" . mapdir;
		107	our $LOCALDIR = localdir;
		108	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		109	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		110	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		111	our $RANDOMDIR = "$LOCALDIR/random";
		112	our $BDBDIR = "$LOCALDIR/db";
		113	our $PIDFILE = "$LOCALDIR/pid";
		114	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		115
		116	our %RESOURCE;
		117
		118	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		119	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	120	our $NEXT_TICK;
52	our $NOW;	121	our $USE_FSYNC = 1; # use fsync to write maps - default off
		122
		123	our $BDB_DEADLOCK_WATCHER;
		124	our $BDB_CHECKPOINT_WATCHER;
		125	our $BDB_TRICKLE_WATCHER;
		126	our $DB_ENV;
53		127
54	our %CFG;	128	our %CFG;
55		129
56	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
58		133
59	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		137
67	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
70	binmode STDOUT;	146	binmode STDOUT;
71	binmode STDERR;	147	binmode STDERR;
72		148
73	# read virtual server time, if available	149	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	150	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	151	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	152	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	153	$RUNTIME = <$fh> + 0.;
78	}	154	}
79		155
80	mkdir cf::localdir;	156	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	157	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		158
86	our $EMERGENCY_POSITION;	159	our $EMERGENCY_POSITION;
		160
		161	sub cf::map::normalise;
87		162
88	#############################################################################	163	#############################################################################
89		164
90	=head2 GLOBAL VARIABLES	165	=head2 GLOBAL VARIABLES
91		166
…		…
98	=item $cf::RUNTIME	173	=item $cf::RUNTIME
99		174
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	175	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	176	every server tick.
102		177
103	=item $cf::LIBDIR	178	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		179	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		180	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		181
105	The perl library directory, where extensions and cf-specific modules can	182	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	183	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		184	unique-items directory, player file directory, random maps directory and
		185	database environment.
107		186
108	=item $cf::NOW	187	=item $cf::NOW
109		188
110	The time of the last (current) server tick.	189	The time of the last (current) server tick.
111		190
112	=item $cf::TICK	191	=item $cf::TICK
113		192
114	The interval between server ticks, in seconds.	193	The interval between server ticks, in seconds.
115		194
		195	=item $cf::LOADAVG
		196
		197	The current CPU load on the server (alpha-smoothed), as a value between 0
		198	(none) and 1 (overloaded), indicating how much time is spent on processing
		199	objects per tick. Healthy values are < 0.5.
		200
		201	=item $cf::LOAD
		202
		203	The raw value load value from the last tick.
		204
116	=item %cf::CFG	205	=item %cf::CFG
117		206
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	207	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	208	from wherever your confdir points to.
120		209
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	210	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		211
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	212	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	213	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	214	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	215
		216	=item @cf::INVOKE_RESULTS
		217
		218	This array contains the results of the last C<invoke ()> call. When
		219	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		220	that call.
127		221
128	=back	222	=back
129		223
130	=cut	224	=cut
131		225
132	BEGIN {	226	BEGIN {
133	*CORE::GLOBAL::warn = sub {	227	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	228	my $msg = join "", @_;
135	utf8::encode $msg;
136		229
137	$msg .= "\n"	230	$msg .= "\n"
138	unless $msg =~ /\n$/;	231	unless $msg =~ /\n$/;
139		232
		233	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		234
140	LOG llevError, $msg;	235	LOG llevError, $msg;
141	};	236	};
142	}	237	}
		238
		239	$Coro::State::DIEHOOK = sub {
		240	return unless $^S eq 0; # "eq", not "=="
		241
		242	if ($Coro::current == $Coro::main) {#d#
		243	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		244	return;#d#
		245	}#d#
		246
		247	# kill coroutine otherwise
		248	warn Carp::longmess $_[0];
		249	Coro::terminate
		250	};
		251
		252	$SIG{__DIE__} = sub { }; #d#?
143		253
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	254	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	255	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	256	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	257	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	258	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		259	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	260	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		261
151	# we bless all objects into (empty) derived classes to force a method lookup	262	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	263	# within the Safe compartment.
153	for my $pkg (qw(	264	for my $pkg (qw(
154	cf::global cf::attachable	265	cf::global cf::attachable
155	cf::object cf::object::player	266	cf::object cf::object::player
156	cf::client cf::player	267	cf::client cf::player
157	cf::arch cf::living	268	cf::arch cf::living
		269	cf::map cf::mapspace
158	cf::map cf::party cf::region	270	cf::party cf::region
159	)) {	271	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	272	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	273	}
163		274
164	$Event::DIED = sub {	275	$EV::DIED = sub {
165	warn "error in event callback: @_";	276	warn "error in event callback: @_";
166	};	277	};
		278
		279	#############################################################################
167		280
168	=head2 UTILITY FUNCTIONS	281	=head2 UTILITY FUNCTIONS
169		282
170	=over 4	283	=over 4
171		284
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	303	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	304	$d
192	} || "[unable to dump $_[0]: '$@']";	305	} || "[unable to dump $_[0]: '$@']";
193	}	306	}
194		307
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	308	=item $ref = cf::decode_json $json
198		309
199	Converts a JSON string into the corresponding perl data structure.	310	Converts a JSON string into the corresponding perl data structure.
200		311
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	312	=item $json = cf::encode_json $ref
209		313
210	Converts a perl data structure into its JSON representation.	314	Converts a perl data structure into its JSON representation.
211		315
212	=cut	316	=cut
213		317
214	sub to_json($) {	318	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	319
216	JSON::Syck::Dump $_[0]	320	sub encode_json($) { $json_coder->encode ($_[0]) }
217	}	321	sub decode_json($) { $json_coder->decode ($_[0]) }
218		322
219	=item cf::lock_wait $string	323	=item cf::lock_wait $string
220		324
221	Wait until the given lock is available. See cf::lock_acquire.	325	Wait until the given lock is available. See cf::lock_acquire.
222		326
…		…
225	Wait until the given lock is available and then acquires it and returns	329	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	330	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	331	for example when the coroutine gets canceled), the lock is automatically
228	returned.	332	returned.
229		333
		334	Locks are *not* recursive, locking from the same coro twice results in a
		335	deadlocked coro.
		336
230	Lock names should begin with a unique identifier (for example, cf::map::find	337	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	338	uses map_find and cf::map::load uses map_load).
232		339
		340	=item $locked = cf::lock_active $string
		341
		342	Return true if the lock is currently active, i.e. somebody has locked it.
		343
233	=cut	344	=cut
234		345
235	our %LOCK;	346	our %LOCK;
		347	our %LOCKER;#d#
236		348
237	sub lock_wait($) {	349	sub lock_wait($) {
238	my ($key) = @_;	350	my ($key) = @_;
		351
		352	if ($LOCKER{$key} == $Coro::current) {#d#
		353	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		354	return;#d#
		355	}#d#
239		356
240	# wait for lock, if any	357	# wait for lock, if any
241	while ($LOCK{$key}) {	358	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;	359	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;	360	Coro::schedule;
…		…
249		366
250	# wait, to be sure we are not locked	367	# wait, to be sure we are not locked
251	lock_wait $key;	368	lock_wait $key;
252		369
253	$LOCK{$key} = [];	370	$LOCK{$key} = [];
		371	$LOCKER{$key} = $Coro::current;#d#
254		372
255	Coro::guard {	373	Coro::guard {
		374	delete $LOCKER{$key};#d#
256	# wake up all waiters, to be on the safe side	375	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	376	$_->ready for @{ delete $LOCK{$key} };
258	}	377	}
259	}	378	}
260		379
		380	sub lock_active($) {
		381	my ($key) = @_;
		382
		383	! ! $LOCK{$key}
		384	}
		385
261	sub freeze_mainloop {	386	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	387	tick_inhibit_inc;
263		388
264	my $guard = Coro::guard {	389	Coro::guard \&tick_inhibit_dec;
265	$TICK_WATCHER->start;	390	}
266	$WRITE_RUNTIME_WATCHER->start;	391
		392	=item cf::periodic $interval, $cb
		393
		394	Like EV::periodic, but randomly selects a starting point so that the actions
		395	get spread over timer.
		396
		397	=cut
		398
		399	sub periodic($$) {
		400	my ($interval, $cb) = @_;
		401
		402	my $start = rand List::Util::min 180, $interval;
		403
		404	EV::periodic $start, $interval, 0, $cb
		405	}
		406
		407	=item cf::get_slot $time[, $priority[, $name]]
		408
		409	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		410	This call blocks and returns only when you have at least C<$time> seconds
		411	of cpu time till the next tick. The slot is only valid till the next cede.
		412
		413	The optional C<$name> can be used to identify the job to run. It might be
		414	used for statistical purposes and should identify the same time-class.
		415
		416	Useful for short background jobs.
		417
		418	=cut
		419
		420	our @SLOT_QUEUE;
		421	our $SLOT_QUEUE;
		422
		423	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		424	$SLOT_QUEUE = Coro::async {
		425	$Coro::current->desc ("timeslot manager");
		426
		427	my $signal = new Coro::Signal;
		428
		429	while () {
		430	next_job:
		431	my $avail = cf::till_tick;
		432	if ($avail > 0.01) {
		433	for (0 .. $#SLOT_QUEUE) {
		434	if ($SLOT_QUEUE[$_][0] < $avail) {
		435	my $job = splice @SLOT_QUEUE, $_, 1, ();
		436	$job->[2]->send;
		437	Coro::cede;
		438	goto next_job;
		439	}
		440	}
		441	}
		442
		443	if (@SLOT_QUEUE) {
		444	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		445	push @cf::WAIT_FOR_TICK, $signal;
		446	$signal->wait;
		447	} else {
		448	Coro::schedule;
		449	}
267	};	450	}
268	$WRITE_RUNTIME_WATCHER->stop;	451	};
269	$TICK_WATCHER->stop;	452
270	$guard	453	sub get_slot($;$$) {
		454	return if tick_inhibit || $Coro::current == $Coro::main;
		455
		456	my ($time, $pri, $name) = @_;
		457
		458	$time = $TICK * .6 if $time > $TICK * .6;
		459	my $sig = new Coro::Signal;
		460
		461	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		462	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		463	$SLOT_QUEUE->ready;
		464	$sig->wait;
271	}	465	}
272		466
273	=item cf::async { BLOCK }	467	=item cf::async { BLOCK }
274		468
275	Currently the same as Coro::async_pool, meaning you cannot use	469	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		474
281	BEGIN { *async = \&Coro::async_pool }	475	BEGIN { *async = \&Coro::async_pool }
282		476
283	=item cf::sync_job { BLOCK }	477	=item cf::sync_job { BLOCK }
284		478
285	The design of crossfire+ requires that the main coro ($Coro::main) is	479	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	480	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	481	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		482	acceptable.
288		483
289	If it must be done, put the blocking parts into C<sync_job>. This will run	484	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	485	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	486	server will be frozen during this time, so the block should either finish
292	fast or be very important.	487	fast or be very important.
…		…
295		490
296	sub sync_job(&) {	491	sub sync_job(&) {
297	my ($job) = @_;	492	my ($job) = @_;
298		493
299	if ($Coro::current == $Coro::main) {	494	if ($Coro::current == $Coro::main) {
		495	my $time = EV::time;
		496
300	# this is the main coro, too bad, we have to block	497	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	498	# till the operation succeeds, freezing the server :/
302		499
303	# TODO: use suspend/resume instead	500	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	501
305	my $freeze_guard = freeze_mainloop;	502	my $freeze_guard = freeze_mainloop;
306		503
307	my $busy = 1;	504	my $busy = 1;
308	my @res;	505	my @res;
309		506
310	(async {	507	(async {
		508	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	509	@res = eval { $job->() };
312	warn $@ if $@;	510	warn $@ if $@;
313	undef $busy;	511	undef $busy;
314	})->prio (Coro::PRIO_MAX);	512	})->prio (Coro::PRIO_MAX);
315		513
316	while ($busy) {	514	while ($busy) {
317	Coro::cede or Event::one_event;	515	if (Coro::nready) {
		516	Coro::cede_notself;
		517	} else {
		518	EV::loop EV::LOOP_ONESHOT;
318	}	519	}
		520	}
		521
		522	my $time = EV::time - $time;
		523
		524	$TICK_START += $time; # do not account sync jobs to server load
319		525
320	wantarray ? @res : $res[0]	526	wantarray ? @res : $res[0]
321	} else {	527	} else {
322	# we are in another coroutine, how wonderful, everything just works	528	# we are in another coroutine, how wonderful, everything just works
323		529
…		…
343	$EXT_CORO{$coro+0} = $coro;	549	$EXT_CORO{$coro+0} = $coro;
344		550
345	$coro	551	$coro
346	}	552	}
347		553
348	sub write_runtime {	554	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		555
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	556	Executes the given code block with the given arguments in a seperate
352	or return;	557	process, returning the results. Everything must be serialisable with
		558	Coro::Storable. May, of course, block. Note that the executed sub may
		559	never block itself or use any form of event handling.
353		560
354	my $value = $cf::RUNTIME + 90 + 10;	561	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		562
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	563	sub fork_call(&@) {
359	and return;	564	my ($cb, @args) = @_;
360		565
361	aio_fsync $fh	566	# we seemingly have to make a local copy of the whole thing,
362	and return;	567	# otherwise perl prematurely frees the stuff :/
		568	# TODO: investigate and fix (likely this will be rather laborious)
363		569
364	close $fh	570	my @res = Coro::Util::fork_eval {
365	or return;	571	reset_signals;
		572	&$cb
		573	}, @args;
366		574
367	aio_rename "$runtime~", $runtime	575	wantarray ? @res : $res[-1]
368	and return;	576	}
369		577
		578	=item $coin = coin_from_name $name
		579
		580	=cut
		581
		582	our %coin_alias = (
		583	"silver" => "silvercoin",
		584	"silvercoin" => "silvercoin",
		585	"silvercoins" => "silvercoin",
		586	"gold" => "goldcoin",
		587	"goldcoin" => "goldcoin",
		588	"goldcoins" => "goldcoin",
		589	"platinum" => "platinacoin",
		590	"platinumcoin" => "platinacoin",
		591	"platinumcoins" => "platinacoin",
		592	"platina" => "platinacoin",
		593	"platinacoin" => "platinacoin",
		594	"platinacoins" => "platinacoin",
		595	"royalty" => "royalty",
		596	"royalties" => "royalty",
		597	);
		598
		599	sub coin_from_name($) {
		600	$coin_alias{$_[0]}
		601	? cf::arch::find $coin_alias{$_[0]}
		602	: undef
		603	}
		604
		605	=item $value = cf::db_get $family => $key
		606
		607	Returns a single value from the environment database.
		608
		609	=item cf::db_put $family => $key => $value
		610
		611	Stores the given C<$value> in the family. It can currently store binary
		612	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		613
		614	=item $db = cf::db_table "name"
		615
		616	Create and/or open a new database table. The string must not be "db" and must be unique
		617	within each server.
		618
		619	=cut
		620
		621	sub db_table($) {
		622	my ($name) = @_;
		623	my $db = BDB::db_create $DB_ENV;
		624
		625	eval {
		626	$db->set_flags (BDB::CHKSUM);
		627
		628	utf8::encode $name;
		629	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		630	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		631	cf::cleanup "db_open(db): $!" if $!;
		632	};
		633	cf::cleanup "db_open(db): $@" if $@;
		634
		635	$db
		636	}
		637
		638	our $DB;
		639
		640	sub db_init {
		641	cf::sync_job {
		642	$DB ||= db_table "db";
		643	};
		644	}
		645
		646	sub db_get($$) {
		647	my $key = "$_[0]/$_[1]";
		648
		649	cf::sync_job {
		650	BDB::db_get $DB, undef, $key, my $data;
		651
		652	$! ? ()
		653	: $data
370	1	654	}
		655	}
		656
		657	sub db_put($$$) {
		658	BDB::dbreq_pri 4;
		659	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		660	}
		661
		662	=item cf::cache $id => [$paths...], $processversion => $process
		663
		664	Generic caching function that returns the value of the resource $id,
		665	caching and regenerating as required.
		666
		667	This function can block.
		668
		669	=cut
		670
		671	sub cache {
		672	my ($id, $src, $processversion, $process) = @_;
		673
		674	my $meta =
		675	join "\x00",
		676	$processversion,
		677	map {
		678	aio_stat $_
		679	and Carp::croak "$_: $!";
		680
		681	($_, (stat _)[7,9])
		682	} @$src;
		683
		684	my $dbmeta = db_get cache => "$id/meta";
		685	if ($dbmeta ne $meta) {
		686	# changed, we may need to process
		687
		688	my @data;
		689	my $md5;
		690
		691	for (0 .. $#$src) {
		692	0 <= aio_load $src->[$_], $data[$_]
		693	or Carp::croak "$src->[$_]: $!";
		694	}
		695
		696	# if processing is expensive, check
		697	# checksum first
		698	if (1) {
		699	$md5 =
		700	join "\x00",
		701	$processversion,
		702	map {
		703	cf::cede_to_tick;
		704	($src->[$_], Digest::MD5::md5_hex $data[$_])
		705	} 0.. $#$src;
		706
		707
		708	my $dbmd5 = db_get cache => "$id/md5";
		709	if ($dbmd5 eq $md5) {
		710	db_put cache => "$id/meta", $meta;
		711
		712	return db_get cache => "$id/data";
		713	}
		714	}
		715
		716	my $t1 = Time::HiRes::time;
		717	my $data = $process->(\@data);
		718	my $t2 = Time::HiRes::time;
		719
		720	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		721
		722	db_put cache => "$id/data", $data;
		723	db_put cache => "$id/md5" , $md5;
		724	db_put cache => "$id/meta", $meta;
		725
		726	return $data;
		727	}
		728
		729	db_get cache => "$id/data"
		730	}
		731
		732	=item cf::datalog type => key => value, ...
		733
		734	Log a datalog packet of the given type with the given key-value pairs.
		735
		736	=cut
		737
		738	sub datalog($@) {
		739	my ($type, %kv) = @_;
		740	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	741	}
372		742
373	=back	743	=back
374		744
375	=cut	745	=cut
376		746
377	#############################################################################	747	#############################################################################
378		748
379	=head2 ATTACHABLE OBJECTS	749	=head2 ATTACHABLE OBJECTS
380		750
381	Many objects in crossfire are so-called attachable objects. That means you can	751	Many objects in deliantra are so-called attachable objects. That means you can
382	attach callbacks/event handlers (a collection of which is called an "attachment")	752	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	753	to it. All such attachable objects support the following methods.
384		754
385	In the following description, CLASS can be any of C<global>, C<object>	755	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	756	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	757	Deliantra).
388		758
389	=over 4	759	=over 4
390		760
391	=item $attachable->attach ($attachment, key => $value...)	761	=item $attachable->attach ($attachment, key => $value...)
392		762
…		…
436	=item cf::CLASS::attachment $name, ...	806	=item cf::CLASS::attachment $name, ...
437		807
438	Register an attachment by C<$name> through which attachable objects of the	808	Register an attachment by C<$name> through which attachable objects of the
439	given CLASS can refer to this attachment.	809	given CLASS can refer to this attachment.
440		810
441	Some classes such as crossfire maps and objects can specify attachments	811	Some classes such as deliantra maps and objects can specify attachments
442	that are attached at load/instantiate time, thus the need for a name.	812	that are attached at load/instantiate time, thus the need for a name.
443		813
444	These calls expect any number of the following handler/hook descriptions:	814	These calls expect any number of the following handler/hook descriptions:
445		815
446	=over 4	816	=over 4
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	925	$registry = $CB_TYPE[$object_type] ||= [];
556		926
557	} elsif ($type eq "subtype") {	927	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	928	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	929	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	930	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		931
562	} elsif ($type eq "package") {	932	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	933	my $pkg = shift @arg;
564		934
565	while (my ($name, $id) = each %cb_id) {	935	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	964	_attach $registry, $klass, @attach;
595	}	965	}
596		966
597	$obj->{$name} = \%arg;	967	$obj->{$name} = \%arg;
598	} else {	968	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	969	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	970	}
601		971
602	$obj->{_attachment}{$name} = undef;	972	$obj->{_attachment}{$name} = undef;
603	}	973	}
604		974
…		…
606	if (ref $_[0]) {	976	if (ref $_[0]) {
607	_object_attach @_;	977	_object_attach @_;
608	} else {	978	} else {
609	_attach shift->_attach_registry, @_;	979	_attach shift->_attach_registry, @_;
610	}	980	}
		981	_recalc_want;
611	};	982	};
612		983
613	# all those should be optimised	984	# all those should be optimised
614	sub cf::attachable::detach {	985	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	986	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	989	delete $obj->{_attachment}{$name};
619	reattach ($obj);	990	reattach ($obj);
620	} else {	991	} else {
621	Carp::croak "cannot, currently, detach class attachments";	992	Carp::croak "cannot, currently, detach class attachments";
622	}	993	}
		994	_recalc_want;
623	};	995	};
624		996
625	sub cf::attachable::attached {	997	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	998	my ($obj, $name) = @_;
627		999
…		…
642	";	1014	";
643	die if $@;	1015	die if $@;
644	}	1016	}
645		1017
646	our $override;	1018	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1019	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		1020
649	sub override {	1021	sub override {
650	$override = 1;	1022	$override = 1;
651	@invoke_results = ();	1023	@INVOKE_RESULTS = (@_);
652	}	1024	}
653		1025
654	sub do_invoke {	1026	sub do_invoke {
655	my $event = shift;	1027	my $event = shift;
656	my $callbacks = shift;	1028	my $callbacks = shift;
657		1029
658	@invoke_results = ();	1030	@INVOKE_RESULTS = ();
659		1031
660	local $override;	1032	local $override;
661		1033
662	for (@$callbacks) {	1034	for (@$callbacks) {
663	eval { &{$_->[1]} };	1035	eval { &{$_->[1]} };
…		…
672	}	1044	}
673		1045
674	0	1046	0
675	}	1047	}
676		1048
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1049	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		1050
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1051	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		1052
681	Generate an object-specific event with the given arguments.	1053	Generate an object-specific event with the given arguments.
682		1054
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1055	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	1056	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	1057	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		1058
687	=back	1059	=back
688		1060
689	=cut	1061	=cut
690		1062
691	#############################################################################	1063	#############################################################################
692	# object support	1064	# object support
		1065
		1066	sub _object_equal($$);
		1067	sub _object_equal($$) {
		1068	my ($a, $b) = @_;
		1069
		1070	return 0 unless (ref $a) eq (ref $b);
		1071
		1072	if ("HASH" eq ref $a) {
		1073	my @ka = keys %$a;
		1074	my @kb = keys %$b;
		1075
		1076	return 0 if @ka != @kb;
		1077
		1078	for (0 .. $#ka) {
		1079	return 0 unless $ka[$_] eq $kb[$_];
		1080	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1081	}
		1082
		1083	} elsif ("ARRAY" eq ref $a) {
		1084
		1085	return 0 if @$a != @$b;
		1086
		1087	for (0 .. $#$a) {
		1088	return 0 unless _object_equal $a->[$_], $b->[$_];
		1089	}
		1090
		1091	} elsif ($a ne $b) {
		1092	return 0;
		1093	}
		1094
		1095	1
		1096	}
		1097
		1098	our $SLOW_MERGES;#d#
		1099	sub _can_merge {
		1100	my ($ob1, $ob2) = @_;
		1101
		1102	++$SLOW_MERGES;#d#
		1103
		1104	# we do the slow way here
		1105	return _object_equal $ob1, $ob2
		1106	}
693		1107
694	sub reattach {	1108	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1109	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1110	my ($obj) = @_;
697		1111
		1112	# no longer needed after getting rid of delete_package?
698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1113	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
699		1114
700	my $registry = $obj->registry;	1115	my $registry = $obj->registry;
701		1116
702	@$registry = ();	1117	@$registry = ();
703		1118
…		…
718	cf::attachable->attach (	1133	cf::attachable->attach (
719	prio => -1000000,	1134	prio => -1000000,
720	on_instantiate => sub {	1135	on_instantiate => sub {
721	my ($obj, $data) = @_;	1136	my ($obj, $data) = @_;
722		1137
723	$data = from_json $data;	1138	$data = decode_json $data;
724		1139
725	for (@$data) {	1140	for (@$data) {
726	my ($name, $args) = @$_;	1141	my ($name, $args) = @$_;
727		1142
728	$obj->attach ($name, %{$args || {} });	1143	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1159	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1160	my ($filename, $rdata, $objs) = @_;
746		1161
747	sync_job {	1162	sync_job {
748	if (length $$rdata) {	1163	if (length $$rdata) {
		1164	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1165	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1166	$decname, length $$rdata, scalar @$objs;
751		1167
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1168	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1169	aio_chmod $fh, SAVE_MODE;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1170	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	1171	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	1172	aio_close $fh;
757		1173
758	if (@$objs) {	1174	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1177	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1178	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	1179	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	1180	aio_close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1181	aio_rename "$filename.pst~", "$filename.pst";
766	}	1182	}
767	} else {	1183	} else {
768	aio_unlink "$filename.pst";	1184	aio_unlink "$filename.pst";
769	}	1185	}
…		…
774	}	1190	}
775	} else {	1191	} else {
776	aio_unlink $filename;	1192	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1193	aio_unlink "$filename.pst";
778	}	1194	}
779	}	1195	};
780	}	1196	}
781		1197
782	sub object_freezer_as_string {	1198	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1199	my ($rdata, $objs) = @_;
784		1200
…		…
796	or return;	1212	or return;
797		1213
798	unless (aio_stat "$filename.pst") {	1214	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1215	(aio_load "$filename.pst", $av) >= 0
800	or return;	1216	or return;
		1217
801	$av = eval { (Storable::thaw $av)->{objs} };	1218	my $st = eval { Coro::Storable::thaw $av };
		1219	$av = $st->{objs};
802	}	1220	}
803		1221
		1222	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1223	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1224	$decname, length $data, scalar @{$av || []};
		1225
806	return ($data, $av);	1226	($data, $av)
807	}	1227	}
		1228
		1229	=head2 COMMAND CALLBACKS
		1230
		1231	=over 4
		1232
		1233	=cut
808		1234
809	#############################################################################	1235	#############################################################################
810	# command handling &c	1236	# command handling &c
811		1237
812	=item cf::register_command $name => \&callback($ob,$args);	1238	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1251	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1252	}
827		1253
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1254	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1255
830	Register a callbackf ro execution when the client sends an extcmd packet.	1256	Register a callback for execution when the client sends an (synchronous)
		1257	extcmd packet. Ext commands will be processed in the order they are
		1258	received by the server, like other user commands. The first argument is
		1259	the logged-in player. Ext commands can only be processed after a player
		1260	has logged in successfully.
831		1261
832	If the callback returns something, it is sent back as if reply was being	1262	If the callback returns something, it is sent back as if reply was being
833	called.	1263	called.
834		1264
		1265	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1266
		1267	Register a callback for execution when the client sends an (asynchronous)
		1268	exticmd packet. Exti commands are processed by the server as soon as they
		1269	are received, i.e. out of order w.r.t. other commands. The first argument
		1270	is a client socket. Exti commands can be received anytime, even before
		1271	log-in.
		1272
		1273	If the callback returns something, it is sent back as if reply was being
		1274	called.
		1275
835	=cut	1276	=cut
836		1277
837	sub register_extcmd {	1278	sub register_extcmd {
838	my ($name, $cb) = @_;	1279	my ($name, $cb) = @_;
839		1280
840	$EXTCMD{$name} = $cb;	1281	$EXTCMD{$name} = $cb;
		1282	}
		1283
		1284	sub register_exticmd {
		1285	my ($name, $cb) = @_;
		1286
		1287	$EXTICMD{$name} = $cb;
841	}	1288	}
842		1289
843	cf::player->attach (	1290	cf::player->attach (
844	on_command => sub {	1291	on_command => sub {
845	my ($pl, $name, $params) = @_;	1292	my ($pl, $name, $params) = @_;
…		…
854	cf::override;	1301	cf::override;
855	},	1302	},
856	on_extcmd => sub {	1303	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1304	my ($pl, $buf) = @_;
858		1305
859	my $msg = eval { from_json $buf };	1306	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1307
861	if (ref $msg) {	1308	if (ref $msg) {
		1309	my ($type, $reply, @payload) =
		1310	"ARRAY" eq ref $msg
		1311	? @$msg
		1312	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1313
		1314	my @reply;
		1315
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1316	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1317	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1318	}
		1319
		1320	$pl->ext_reply ($reply, @reply)
		1321	if $reply;
		1322
867	} else {	1323	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1324	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1325	}
870		1326
871	cf::override;	1327	cf::override;
872	},	1328	},
873	);	1329	);
874		1330
875	sub load_extension {
876	my ($path) = @_;
877
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
879	my $base = $1;
880	my $pkg = $1;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}
903	die $@;
904	}
905
906	push @EXTS, $pkg;
907	}
908
909	sub load_extensions {	1331	sub load_extensions {
		1332	cf::sync_job {
		1333	my %todo;
		1334
910	for my $ext (<$LIBDIR/*.ext>) {	1335	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1336	next unless -r $path;
912	eval {	1337
913	load_extension $ext;	1338	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1339	my $base = $1;
		1340	my $pkg = $1;
		1341	$pkg =~ s/[^[:word:]]/_/g;
		1342	$pkg = "ext::$pkg";
		1343
		1344	open my $fh, "<:utf8", $path
		1345	or die "$path: $!";
		1346
		1347	my $source = do { local $/; <$fh> };
		1348
		1349	my %ext = (
		1350	path => $path,
		1351	base => $base,
		1352	pkg => $pkg,
		1353	);
		1354
		1355	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1356	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1357
		1358	$ext{source} =
		1359	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1360	. "#line 1 \"$path\"\n{\n"
		1361	. $source
		1362	. "\n};\n1";
		1363
		1364	$todo{$base} = \%ext;
		1365	}
		1366
		1367	my %done;
		1368	while (%todo) {
		1369	my $progress;
		1370
		1371	while (my ($k, $v) = each %todo) {
		1372	for (split /,\s*/, $v->{meta}{depends}) {
		1373	goto skip
		1374	unless exists $done{$_};
		1375	}
		1376
		1377	warn "... loading '$k' into '$v->{pkg}'\n";
		1378
		1379	unless (eval $v->{source}) {
		1380	my $msg = $@ ? "$v->{path}: $@\n"
		1381	: "$v->{base}: extension inactive.\n";
		1382
		1383	if (exists $v->{meta}{mandatory}) {
		1384	warn $msg;
		1385	cf::cleanup "mandatory extension failed to load, exiting.";
		1386	}
		1387
		1388	warn $msg;
		1389	}
		1390
		1391	$done{$k} = delete $todo{$k};
		1392	push @EXTS, $v->{pkg};
		1393	$progress = 1;
914	1	1394	}
915	} or warn "$ext not loaded: $@";	1395
		1396	skip:
		1397	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1398	unless $progress;
		1399	}
916	}	1400	};
917	}	1401	}
918		1402
919	#############################################################################	1403	#############################################################################
920		1404
		1405	=back
		1406
921	=head2 CORE EXTENSIONS	1407	=head2 CORE EXTENSIONS
922		1408
923	Functions and methods that extend core crossfire objects.	1409	Functions and methods that extend core deliantra objects.
924		1410
925	=cut	1411	=cut
926		1412
927	package cf::player;	1413	package cf::player;
928		1414
…		…
930		1416
931	=head3 cf::player	1417	=head3 cf::player
932		1418
933	=over 4	1419	=over 4
934		1420
		1421	=item cf::player::num_playing
		1422
		1423	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1424
		1425	=cut
		1426
		1427	sub num_playing {
		1428	scalar grep
		1429	$_->ob->map
		1430	&& !$_->hidden
		1431	&& !$_->ob->flag (cf::FLAG_WIZ),
		1432	cf::player::list
		1433	}
		1434
935	=item cf::player::find $login	1435	=item cf::player::find $login
936		1436
937	Returns the given player object, loading it if necessary (might block).	1437	Returns the given player object, loading it if necessary (might block).
938		1438
939	=cut	1439	=cut
940		1440
941	sub playerdir($) {	1441	sub playerdir($) {
942	cf::localdir	1442	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1443	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1444	}
948		1445
949	sub path($) {	1446	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1447	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1448
952	(playerdir $login) . "/$login.pl"	1449	(playerdir $login) . "/playerdata"
953	}	1450	}
954		1451
955	sub find_active($) {	1452	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1453	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1454	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1467	my $login = $_[0];
971		1468
972	my $guard = cf::lock_acquire "user_find:$login";	1469	my $guard = cf::lock_acquire "user_find:$login";
973		1470
974	$cf::PLAYER{$_[0]} || do {	1471	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	1472	# rename old playerfiles to new ones
		1473	#TODO: remove when no longer required
		1474	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1475	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1476	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1477	aio_unlink +(playerdir $login) . "/$login.pl";
		1478
		1479	my $f = new_from_file cf::object::thawer path $login
976	or return;	1480	or return;
		1481
		1482	my $pl = cf::player::load_pl $f
		1483	or return;
		1484
		1485	local $cf::PLAYER_LOADING{$login} = $pl;
		1486	$f->resolve_delayed_derefs;
977	$cf::PLAYER{$login} = $pl	1487	$cf::PLAYER{$login} = $pl
978	}	1488	}
979	}	1489	}
980	}	1490	}
981		1491
…		…
990	return if $pl->{deny_save};	1500	return if $pl->{deny_save};
991		1501
992	aio_mkdir playerdir $pl, 0770;	1502	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1503	$pl->{last_save} = $cf::RUNTIME;
994		1504
		1505	cf::get_slot 0.01;
		1506
995	$pl->save_pl ($path);	1507	$pl->save_pl ($path);
996	Coro::cede;	1508	cf::cede_to_tick;
997	}	1509	}
998		1510
999	sub new($) {	1511	sub new($) {
1000	my ($login) = @_;	1512	my ($login) = @_;
1001		1513
…		…
1007	$cf::PLAYER{$login} = $self;	1519	$cf::PLAYER{$login} = $self;
1008		1520
1009	$self	1521	$self
1010	}	1522	}
1011		1523
		1524	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1525
		1526	=cut
		1527
		1528	sub send_msg {
		1529	my $ns = shift->ns
		1530	or return;
		1531	$ns->send_msg (@_);
		1532	}
		1533
1012	=item $pl->quit_character	1534	=item $pl->quit_character
1013		1535
1014	Nukes the player without looking back. If logged in, the connection will	1536	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1537	be destroyed. May block for a long time.
1016		1538
1017	=cut	1539	=cut
1018		1540
1019	sub quit_character {	1541	sub quit_character {
1020	my ($pl) = @_;	1542	my ($pl) = @_;
1021		1543
		1544	my $name = $pl->ob->name;
		1545
1022	$pl->{deny_save} = 1;	1546	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1547	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1024		1548
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1549	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026	$pl->deactivate;	1550	$pl->deactivate;
		1551	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1552	$pl->ob->check_score;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1553	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1028	$pl->ns->destroy if $pl->ns;	1554	$pl->ns->destroy if $pl->ns;
1029		1555
1030	my $path = playerdir $pl;	1556	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1557	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1558	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1559	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1560	$pl->destroy;
		1561
		1562	my $prefix = qr<^~\Q$name\E/>;
		1563
		1564	# nuke player maps
		1565	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1566
1035	IO::AIO::aio_rmtree $temp;	1567	IO::AIO::aio_rmtree $temp;
		1568	}
		1569
		1570	=item $pl->kick
		1571
		1572	Kicks a player out of the game. This destroys the connection.
		1573
		1574	=cut
		1575
		1576	sub kick {
		1577	my ($pl, $kicker) = @_;
		1578
		1579	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1580	$pl->killer ("kicked");
		1581	$pl->ns->destroy;
1036	}	1582	}
1037		1583
1038	=item cf::player::list_logins	1584	=item cf::player::list_logins
1039		1585
1040	Returns am arrayref of all valid playernames in the system, can take a	1586	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1587	while and may block, so not sync_job-capable, ever.
1042		1588
1043	=cut	1589	=cut
1044		1590
1045	sub list_logins {	1591	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1592	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1593	or return [];
1048		1594
1049	my @logins;	1595	my @logins;
1050		1596
1051	for my $login (@$dirs) {	1597	for my $login (@$dirs) {
		1598	my $path = path $login;
		1599
		1600	# a .pst is a dead give-away for a valid player
		1601	# if no pst file found, open and chekc for blocked users
		1602	if (aio_stat "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1603	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1604	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1605	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1606	}
1055		1607
1056	utf8::decode $login;	1608	utf8::decode $login;
1057	push @logins, $login;	1609	push @logins, $login;
1058	}	1610	}
1059		1611
…		…
1067		1619
1068	=cut	1620	=cut
1069		1621
1070	sub maps($) {	1622	sub maps($) {
1071	my ($pl) = @_;	1623	my ($pl) = @_;
		1624
		1625	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1626
1073	my $files = aio_readdir playerdir $pl	1627	my $files = aio_readdir playerdir $pl
1074	or return;	1628	or return;
1075		1629
1076	my @paths;	1630	my @paths;
…		…
1078	for (@$files) {	1632	for (@$files) {
1079	utf8::decode $_;	1633	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1634	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1635	next unless /^$PATH_SEP/o;
1082		1636
1083	s/\.map$//;	1637	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1638	}
1086		1639
1087	\@paths	1640	\@paths
1088	}	1641	}
1089		1642
		1643	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1644
		1645	Expand deliantra pod fragments into protocol xml.
		1646
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1647	=item $player->ext_reply ($msgid, @msg)
1091		1648
1092	Sends an ext reply to the player.	1649	Sends an ext reply to the player.
1093		1650
1094	=cut	1651	=cut
1095		1652
1096	sub ext_reply($$$%) {	1653	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1654	my ($self, $id, @msg) = @_;
1098		1655
1099	$msg{msgid} = $id;	1656	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1657	}
1103		1658
1104	package cf;	1659	=item $player->ext_msg ($type, @msg)
		1660
		1661	Sends an ext event to the client.
		1662
		1663	=cut
		1664
		1665	sub ext_msg($$@) {
		1666	my ($self, $type, @msg) = @_;
		1667
		1668	$self->ns->ext_msg ($type, @msg);
		1669	}
		1670
		1671	=head3 cf::region
		1672
		1673	=over 4
		1674
		1675	=cut
		1676
		1677	package cf::region;
		1678
		1679	=item cf::region::find_by_path $path
		1680
		1681	Tries to decuce the likely region for a map knowing only its path.
		1682
		1683	=cut
		1684
		1685	sub find_by_path($) {
		1686	my ($path) = @_;
		1687
		1688	my ($match, $specificity);
		1689
		1690	for my $region (list) {
		1691	if ($region->{match} && $path =~ $region->{match}) {
		1692	($match, $specificity) = ($region, $region->specificity)
		1693	if $region->specificity > $specificity;
		1694	}
		1695	}
		1696
		1697	$match
		1698	}
1105		1699
1106	=back	1700	=back
1107
1108		1701
1109	=head3 cf::map	1702	=head3 cf::map
1110		1703
1111	=over 4	1704	=over 4
1112		1705
…		…
1124	our $MAX_RESET = 3600;	1717	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	1718	our $DEFAULT_RESET = 3000;
1126		1719
1127	sub generate_random_map {	1720	sub generate_random_map {
1128	my ($self, $rmp) = @_;	1721	my ($self, $rmp) = @_;
		1722
		1723	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1724
1129	# mit "rum" bekleckern, nicht	1725	# mit "rum" bekleckern, nicht
1130	$self->_create_random_map (	1726	$self->_create_random_map (
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1727	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1728	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1729	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1736	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region}), $rmp->{custom}	1737	(cf::region::find $rmp->{region}), $rmp->{custom}
1142	)	1738	)
1143	}	1739	}
1144		1740
		1741	=item cf::map->register ($regex, $prio)
		1742
		1743	Register a handler for the map path matching the given regex at the
		1744	givne priority (higher is better, built-in handlers have priority 0, the
		1745	default).
		1746
		1747	=cut
		1748
1145	sub register {	1749	sub register {
1146	my (undef, $regex) = @_;	1750	my (undef, $regex, $prio) = @_;
1147	my $pkg = caller;	1751	my $pkg = caller;
1148		1752
1149	no strict;	1753	no strict;
1150	push @{"$pkg\::ISA"}, __PACKAGE__;	1754	push @{"$pkg\::ISA"}, __PACKAGE__;
1151		1755
1152	$EXT_MAP{$pkg} = qr<$regex>;	1756	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1153	}	1757	}
1154		1758
1155	# also paths starting with '/'	1759	# also paths starting with '/'
1156	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1760	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1157		1761
1158	sub thawer_merge {	1762	sub thawer_merge {
1159	my ($self, $merge) = @_;	1763	my ($self, $merge) = @_;
1160		1764
1161	# we have to keep some variables in memory intact	1765	# we have to keep some variables in memory intact
1162	local $self->{path};	1766	local $self->{path};
1163	local $self->{load_path};	1767	local $self->{load_path};
1164	local $self->{deny_save};
1165	local $self->{deny_reset};
1166		1768
1167	$self->SUPER::thawer_merge ($merge);	1769	$self->SUPER::thawer_merge ($merge);
1168	}	1770	}
1169		1771
1170	sub normalise {	1772	sub normalise {
1171	my ($path, $base) = @_;	1773	my ($path, $base) = @_;
		1774
		1775	$path = "$path"; # make sure its a string
		1776
		1777	$path =~ s/\.map$//;
1172		1778
1173	# map plan:	1779	# map plan:
1174	#	1780	#
1175	# /! non-realised random map exit (special hack!)	1781	# /! non-realised random map exit (special hack!)
1176	# {... are special paths that are not being touched	1782	# {... are special paths that are not being touched
…		…
1204		1810
1205	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1811	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1206		1812
1207	$path = normalise $path, $base;	1813	$path = normalise $path, $base;
1208		1814
1209	for my $pkg (keys %EXT_MAP) {	1815	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1210	if ($path =~ $EXT_MAP{$pkg}) {	1816	if ($path =~ $EXT_MAP{$pkg}[1]) {
1211	my $self = bless cf::map::new, $pkg;	1817	my $self = bless cf::map::new, $pkg;
1212	$self->{path} = $path; $self->path ($path);	1818	$self->{path} = $path; $self->path ($path);
1213	$self->init; # pass $1 etc.	1819	$self->init; # pass $1 etc.
1214	return $self;	1820	return $self;
1215	}	1821	}
1216	}	1822	}
1217		1823
1218	Carp::carp "unable to resolve path '$path'.";	1824	Carp::cluck "unable to resolve path '$path' (base '$base').";
1219	()	1825	()
1220	}	1826	}
1221		1827
1222	sub init {	1828	sub init {
1223	my ($self) = @_;	1829	my ($self) = @_;
…		…
1238		1844
1239	# the original (read-only) location	1845	# the original (read-only) location
1240	sub load_path {	1846	sub load_path {
1241	my ($self) = @_;	1847	my ($self) = @_;
1242		1848
1243	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1849	"$MAPDIR/$self->{path}.map"
1244	}	1850	}
1245		1851
1246	# the temporary/swap location	1852	# the temporary/swap location
1247	sub save_path {	1853	sub save_path {
1248	my ($self) = @_;	1854	my ($self) = @_;
1249		1855
1250	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1856	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1251	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1857	"$TMPDIR/$path.map"
1252	}	1858	}
1253		1859
1254	# the unique path, undef == no special unique path	1860	# the unique path, undef == no special unique path
1255	sub uniq_path {	1861	sub uniq_path {
1256	my ($self) = @_;	1862	my ($self) = @_;
1257		1863
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1864	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1259	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1865	"$UNIQUEDIR/$path"
1260	}	1866	}
1261		1867
1262	# and all this just because we cannot iterate over	1868	# and all this just because we cannot iterate over
1263	# all maps in C++...	1869	# all maps in C++...
1264	sub change_all_map_light {	1870	sub change_all_map_light {
…		…
1266		1872
1267	$_->change_map_light ($change)	1873	$_->change_map_light ($change)
1268	for grep $_->outdoor, values %cf::MAP;	1874	for grep $_->outdoor, values %cf::MAP;
1269	}	1875	}
1270		1876
		1877	sub decay_objects {
		1878	my ($self) = @_;
		1879
		1880	return if $self->{deny_reset};
		1881
		1882	$self->do_decay_objects;
		1883	}
		1884
1271	sub unlink_save {	1885	sub unlink_save {
1272	my ($self) = @_;	1886	my ($self) = @_;
1273		1887
1274	utf8::encode (my $save = $self->save_path);	1888	utf8::encode (my $save = $self->save_path);
1275	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1889	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1278		1892
1279	sub load_header_from($) {	1893	sub load_header_from($) {
1280	my ($self, $path) = @_;	1894	my ($self, $path) = @_;
1281		1895
1282	utf8::encode $path;	1896	utf8::encode $path;
1283	aio_open $path, O_RDONLY, 0	1897	my $f = new_from_file cf::object::thawer $path
1284	or return;	1898	or return;
1285		1899
1286	$self->_load_header ($path)	1900	$self->_load_header ($f)
1287	or return;	1901	or return;
1288		1902
		1903	local $MAP_LOADING{$self->{path}} = $self;
		1904	$f->resolve_delayed_derefs;
		1905
1289	$self->{load_path} = $path;	1906	$self->{load_path} = $path;
1290		1907
1291	1	1908	1
1292	}	1909	}
1293		1910
1294	sub load_orig {	1911	sub load_header_orig {
1295	my ($self) = @_;	1912	my ($self) = @_;
1296		1913
1297	$self->load_header_from ($self->load_path)	1914	$self->load_header_from ($self->load_path)
1298	}	1915	}
1299		1916
1300	sub load_temp {	1917	sub load_header_temp {
1301	my ($self) = @_;	1918	my ($self) = @_;
1302		1919
1303	$self->load_header_from ($self->save_path)	1920	$self->load_header_from ($self->save_path)
		1921	}
		1922
		1923	sub prepare_temp {
		1924	my ($self) = @_;
		1925
		1926	$self->last_access ((delete $self->{last_access})
		1927	|| $cf::RUNTIME); #d#
		1928	# safety
		1929	$self->{instantiate_time} = $cf::RUNTIME
		1930	if $self->{instantiate_time} > $cf::RUNTIME;
		1931	}
		1932
		1933	sub prepare_orig {
		1934	my ($self) = @_;
		1935
		1936	$self->{load_original} = 1;
		1937	$self->{instantiate_time} = $cf::RUNTIME;
		1938	$self->last_access ($cf::RUNTIME);
		1939	$self->instantiate;
1304	}	1940	}
1305		1941
1306	sub load_header {	1942	sub load_header {
1307	my ($self) = @_;	1943	my ($self) = @_;
1308		1944
1309	if ($self->load_temp) {	1945	if ($self->load_header_temp) {
1310	$self->last_access ((delete $self->{last_access})	1946	$self->prepare_temp;
1311	|| $cf::RUNTIME); #d#
1312	# safety
1313	$self->{instantiate_time} = $cf::RUNTIME
1314	if $self->{instantiate_time} > $cf::RUNTIME;
1315	} else {	1947	} else {
1316	$self->load_orig	1948	$self->load_header_orig
1317	or return;	1949	or return;
1318		1950	$self->prepare_orig;
1319	$self->{load_original} = 1;
1320	$self->{instantiate_time} = $cf::RUNTIME;
1321	$self->last_access ($cf::RUNTIME);
1322	$self->instantiate;
1323	}	1951	}
		1952
		1953	$self->{deny_reset} = 1
		1954	if $self->no_reset;
		1955
		1956	$self->default_region (cf::region::find_by_path $self->{path})
		1957	unless $self->default_region;
1324		1958
1325	1	1959	1
1326	}	1960	}
1327		1961
1328	sub find;	1962	sub find;
1329	sub find {	1963	sub find {
1330	my ($path, $origin) = @_;	1964	my ($path, $origin) = @_;
1331		1965
1332	$path = normalise $path, $origin && $origin->path;	1966	$path = normalise $path, $origin && $origin->path;
1333		1967
		1968	cf::lock_wait "map_data:$path";#d#remove
1334	cf::lock_wait "map_find:$path";	1969	cf::lock_wait "map_find:$path";
1335		1970
1336	$cf::MAP{$path} || do {	1971	$cf::MAP{$path} || do {
		1972	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1337	my $guard = cf::lock_acquire "map_find:$path";	1973	my $guard2 = cf::lock_acquire "map_find:$path";
		1974
1338	my $map = new_from_path cf::map $path	1975	my $map = new_from_path cf::map $path
1339	or return;	1976	or return;
1340		1977
1341	$map->{last_save} = $cf::RUNTIME;	1978	$map->{last_save} = $cf::RUNTIME;
1342		1979
1343	$map->load_header	1980	$map->load_header
1344	or return;	1981	or return;
1345		1982
1346	if ($map->should_reset) {	1983	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1347	# doing this can freeze the server in a sync job, obviously	1984	# doing this can freeze the server in a sync job, obviously
1348	#$cf::WAIT_FOR_TICK->wait;	1985	#$cf::WAIT_FOR_TICK->wait;
		1986	undef $guard2;
		1987	undef $guard1;
1349	$map->reset;	1988	$map->reset;
1350	undef $guard;
1351	$map = find $path	1989	return find $path;
1352	or return;
1353	}	1990	}
1354		1991
1355	$cf::MAP{$path} = $map	1992	$cf::MAP{$path} = $map
1356	}	1993	}
1357	}	1994	}
		1995
		1996	sub pre_load { }
		1997	sub post_load { }
1358		1998
1359	sub load {	1999	sub load {
1360	my ($self) = @_;	2000	my ($self) = @_;
1361		2001
		2002	local $self->{deny_reset} = 1; # loading can take a long time
		2003
1362	my $path = $self->{path};	2004	my $path = $self->{path};
		2005
		2006	{
1363	my $guard = cf::lock_acquire "map_load:$path";	2007	my $guard = cf::lock_acquire "map_data:$path";
1364		2008
		2009	return unless $self->valid;
1365	return if $self->in_memory != cf::MAP_SWAPPED;	2010	return unless $self->in_memory == cf::MAP_SWAPPED;
1366		2011
1367	$self->in_memory (cf::MAP_LOADING);	2012	$self->in_memory (cf::MAP_LOADING);
1368		2013
1369	$self->alloc;	2014	$self->alloc;
1370	$self->_load_objects ($self->{load_path}, 1)	2015
		2016	$self->pre_load;
		2017	cf::cede_to_tick;
		2018
		2019	my $f = new_from_file cf::object::thawer $self->{load_path};
		2020	$f->skip_block;
		2021	$self->_load_objects ($f)
1371	or return;	2022	or return;
1372		2023
1373	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2024	$self->post_load_original
1374	if delete $self->{load_original};	2025	if delete $self->{load_original};
1375		2026
1376	if (my $uniq = $self->uniq_path) {	2027	if (my $uniq = $self->uniq_path) {
1377	utf8::encode $uniq;	2028	utf8::encode $uniq;
1378	if (aio_open $uniq, O_RDONLY, 0) {	2029	unless (aio_stat $uniq) {
		2030	if (my $f = new_from_file cf::object::thawer $uniq) {
1379	$self->clear_unique_items;	2031	$self->clear_unique_items;
1380	$self->_load_objects ($uniq, 0);	2032	$self->_load_objects ($f);
		2033	$f->resolve_delayed_derefs;
		2034	}
1381	}	2035	}
1382	}	2036	}
1383		2037
1384	Coro::cede;	2038	$f->resolve_delayed_derefs;
1385		2039
		2040	cf::cede_to_tick;
1386	# now do the right thing for maps	2041	# now do the right thing for maps
1387	$self->link_multipart_objects;	2042	$self->link_multipart_objects;
1388
1389	unless ($self->{deny_activate}) {
1390	$self->decay_objects;
1391	$self->fix_auto_apply;
1392	$self->update_buttons;
1393	Coro::cede;
1394	$self->set_darkness_map;
1395	$self->difficulty ($self->estimate_difficulty)	2043	$self->difficulty ($self->estimate_difficulty)
1396	unless $self->difficulty;	2044	unless $self->difficulty;
1397	Coro::cede;	2045	cf::cede_to_tick;
		2046
		2047	unless ($self->{deny_activate}) {
		2048	$self->decay_objects;
		2049	$self->fix_auto_apply;
		2050	$self->update_buttons;
		2051	cf::cede_to_tick;
		2052	$self->set_darkness_map;
		2053	cf::cede_to_tick;
1398	$self->activate;	2054	$self->activate;
1399	}	2055	}
1400		2056
		2057	$self->{last_save} = $cf::RUNTIME;
		2058	$self->last_access ($cf::RUNTIME);
		2059
1401	$self->in_memory (cf::MAP_IN_MEMORY);	2060	$self->in_memory (cf::MAP_ACTIVE);
		2061	}
		2062
		2063	$self->post_load;
1402	}	2064	}
1403		2065
1404	sub customise_for {	2066	sub customise_for {
1405	my ($self, $ob) = @_;	2067	my ($self, $ob) = @_;
1406		2068
1407	return find "~" . $ob->name . "/" . $self->{path}	2069	return find "~" . $ob->name . "/" . $self->{path}
1408	if $self->per_player;	2070	if $self->per_player;
1409		2071
		2072	# return find "?party/" . $ob->name . "/" . $self->{path}
		2073	# if $self->per_party;
		2074
1410	$self	2075	$self
1411	}	2076	}
1412		2077
1413	# find and load all maps in the 3x3 area around a map	2078	# find and load all maps in the 3x3 area around a map
1414	sub load_diag {	2079	sub load_neighbours {
1415	my ($map) = @_;	2080	my ($map) = @_;
1416		2081
1417	my @diag; # diagonal neighbours	2082	my @neigh; # diagonal neighbours
1418		2083
1419	for (0 .. 3) {	2084	for (0 .. 3) {
1420	my $neigh = $map->tile_path ($_)	2085	my $neigh = $map->tile_path ($_)
1421	or next;	2086	or next;
1422	$neigh = find $neigh, $map	2087	$neigh = find $neigh, $map
1423	or next;	2088	or next;
1424	$neigh->load;	2089	$neigh->load;
1425		2090
		2091	push @neigh,
1426	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2092	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1427	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2093	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1428	}	2094	}
1429		2095
1430	for (@diag) {	2096	for (grep defined $_->[0], @neigh) {
		2097	my ($path, $origin) = @$_;
1431	my $neigh = find @$_	2098	my $neigh = find $path, $origin
1432	or next;	2099	or next;
1433	$neigh->load;	2100	$neigh->load;
1434	}	2101	}
1435	}	2102	}
1436		2103
…		…
1441	}	2108	}
1442		2109
1443	sub do_load_sync {	2110	sub do_load_sync {
1444	my ($map) = @_;	2111	my ($map) = @_;
1445		2112
		2113	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2114	if $Coro::current == $Coro::main;
		2115
1446	cf::sync_job { $map->load };	2116	cf::sync_job { $map->load };
1447	}	2117	}
1448		2118
1449	our %MAP_PREFETCH;	2119	our %MAP_PREFETCH;
1450	our $MAP_PREFETCHER = undef;	2120	our $MAP_PREFETCHER = undef;
1451		2121
1452	sub find_async {	2122	sub find_async {
1453	my ($path, $origin) = @_;	2123	my ($path, $origin, $load) = @_;
1454		2124
1455	$path = normalise $path, $origin && $origin->{path};	2125	$path = normalise $path, $origin && $origin->{path};
1456		2126
1457	if (my $map = $cf::MAP{$path}) {	2127	if (my $map = $cf::MAP{$path}) {
1458	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2128	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1459	}	2129	}
1460		2130
1461	undef $MAP_PREFETCH{$path};	2131	$MAP_PREFETCH{$path} |= $load;
		2132
1462	$MAP_PREFETCHER ||= cf::async {	2133	$MAP_PREFETCHER ||= cf::async {
		2134	$Coro::current->{desc} = "map prefetcher";
		2135
1463	while (%MAP_PREFETCH) {	2136	while (%MAP_PREFETCH) {
1464	for my $path (keys %MAP_PREFETCH) {	2137	while (my ($k, $v) = each %MAP_PREFETCH) {
1465	my $map = find $path	2138	if (my $map = find $k) {
1466	or next;
1467	$map->load;	2139	$map->load if $v;
		2140	}
1468		2141
1469	delete $MAP_PREFETCH{$path};	2142	delete $MAP_PREFETCH{$k};
1470	}	2143	}
1471	}	2144	}
1472	undef $MAP_PREFETCHER;	2145	undef $MAP_PREFETCHER;
1473	};	2146	};
		2147	$MAP_PREFETCHER->prio (6);
1474		2148
1475	()	2149	()
1476	}	2150	}
1477		2151
1478	sub save {	2152	sub save {
1479	my ($self) = @_;	2153	my ($self) = @_;
1480		2154
1481	my $lock = cf::lock_acquire "map_data:" . $self->path;	2155	my $lock = cf::lock_acquire "map_data:$self->{path}";
1482		2156
1483	$self->{last_save} = $cf::RUNTIME;	2157	$self->{last_save} = $cf::RUNTIME;
1484		2158
1485	return unless $self->dirty;	2159	return unless $self->dirty;
1486		2160
…		…
1492	return if $self->{deny_save};	2166	return if $self->{deny_save};
1493		2167
1494	local $self->{last_access} = $self->last_access;#d#	2168	local $self->{last_access} = $self->last_access;#d#
1495		2169
1496	cf::async {	2170	cf::async {
		2171	$Coro::current->{desc} = "map player save";
1497	$_->contr->save for $self->players;	2172	$_->contr->save for $self->players;
1498	};	2173	};
		2174
		2175	cf::get_slot 0.02;
1499		2176
1500	if ($uniq) {	2177	if ($uniq) {
1501	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2178	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1502	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2179	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1503	} else {	2180	} else {
…		…
1509	my ($self) = @_;	2186	my ($self) = @_;
1510		2187
1511	# save first because save cedes	2188	# save first because save cedes
1512	$self->save;	2189	$self->save;
1513		2190
1514	my $lock = cf::lock_acquire "map_data:" . $self->path;	2191	my $lock = cf::lock_acquire "map_data:$self->{path}";
1515		2192
1516	return if $self->players;	2193	return if $self->players;
1517	return if $self->in_memory != cf::MAP_IN_MEMORY;	2194	return if $self->in_memory != cf::MAP_ACTIVE;
1518	return if $self->{deny_save};	2195	return if $self->{deny_save};
1519		2196
		2197	$self->in_memory (cf::MAP_SWAPPED);
		2198
		2199	$self->deactivate;
		2200	$_->clear_links_to ($self) for values %cf::MAP;
1520	$self->clear;	2201	$self->clear;
1521	$self->in_memory (cf::MAP_SWAPPED);
1522	}	2202	}
1523		2203
1524	sub reset_at {	2204	sub reset_at {
1525	my ($self) = @_;	2205	my ($self) = @_;
1526		2206
1527	# TODO: safety, remove and allow resettable per-player maps	2207	# TODO: safety, remove and allow resettable per-player maps
1528	return 1e99 if $self->isa ("ext::map_per_player");#d#
1529	return 1e99 if $self->{deny_reset};	2208	return 1e99 if $self->{deny_reset};
1530		2209
1531	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2210	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1532	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2211	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1533		2212
…		…
1544	my ($self) = @_;	2223	my ($self) = @_;
1545		2224
1546	my $lock = cf::lock_acquire "map_data:$self->{path}";	2225	my $lock = cf::lock_acquire "map_data:$self->{path}";
1547		2226
1548	return if $self->players;	2227	return if $self->players;
1549	return if $self->isa ("ext::map_per_player");#d#
1550		2228
1551	warn "resetting map ", $self->path;#d#	2229	warn "resetting map ", $self->path;
		2230
		2231	$self->in_memory (cf::MAP_SWAPPED);
		2232
		2233	# need to save uniques path
		2234	unless ($self->{deny_save}) {
		2235	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2236
		2237	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2238	if $uniq;
		2239	}
1552		2240
1553	delete $cf::MAP{$self->path};	2241	delete $cf::MAP{$self->path};
1554		2242
1555	$self->in_memory (cf::MAP_SWAPPED);	2243	$self->deactivate;
		2244	$_->clear_links_to ($self) for values %cf::MAP;
1556	$self->clear;	2245	$self->clear;
1557
1558	$_->clear_links_to ($self) for values %cf::MAP;
1559		2246
1560	$self->unlink_save;	2247	$self->unlink_save;
1561	$self->destroy;	2248	$self->destroy;
1562	}	2249	}
1563		2250
1564	my $nuke_counter = "aaaa";	2251	my $nuke_counter = "aaaa";
1565		2252
1566	sub nuke {	2253	sub nuke {
1567	my ($self) = @_;	2254	my ($self) = @_;
1568		2255
		2256	{
		2257	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2258
1569	delete $cf::MAP{$self->path};	2259	delete $cf::MAP{$self->path};
1570		2260
1571	$self->unlink_save;	2261	$self->unlink_save;
1572		2262
1573	bless $self, "cf::map";	2263	bless $self, "cf::map";
1574	delete $self->{deny_reset};	2264	delete $self->{deny_reset};
1575	$self->{deny_save} = 1;	2265	$self->{deny_save} = 1;
1576	$self->reset_timeout (1);	2266	$self->reset_timeout (1);
1577	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2267	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1578		2268
1579	$cf::MAP{$self->path} = $self;	2269	$cf::MAP{$self->path} = $self;
		2270	}
1580		2271
1581	$self->reset; # polite request, might not happen	2272	$self->reset; # polite request, might not happen
		2273	}
		2274
		2275	=item $maps = cf::map::tmp_maps
		2276
		2277	Returns an arrayref with all map paths of currently instantiated and saved
		2278	maps. May block.
		2279
		2280	=cut
		2281
		2282	sub tmp_maps() {
		2283	[
		2284	map {
		2285	utf8::decode $_;
		2286	/\.map$/
		2287	? normalise $_
		2288	: ()
		2289	} @{ aio_readdir $TMPDIR or [] }
		2290	]
		2291	}
		2292
		2293	=item $maps = cf::map::random_maps
		2294
		2295	Returns an arrayref with all map paths of currently instantiated and saved
		2296	random maps. May block.
		2297
		2298	=cut
		2299
		2300	sub random_maps() {
		2301	[
		2302	map {
		2303	utf8::decode $_;
		2304	/\.map$/
		2305	? normalise "?random/$_"
		2306	: ()
		2307	} @{ aio_readdir $RANDOMDIR or [] }
		2308	]
1582	}	2309	}
1583		2310
1584	=item cf::map::unique_maps	2311	=item cf::map::unique_maps
1585		2312
1586	Returns an arrayref of paths of all shared maps that have	2313	Returns an arrayref of paths of all shared maps that have
1587	instantiated unique items. May block.	2314	instantiated unique items. May block.
1588		2315
1589	=cut	2316	=cut
1590		2317
1591	sub unique_maps() {	2318	sub unique_maps() {
1592	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2319	[
1593	or return;	2320	map {
1594
1595	my @paths;
1596
1597	for (@$files) {
1598	utf8::decode $_;	2321	utf8::decode $_;
1599	next if /\.pst$/;	2322	s/\.map$//; # TODO future compatibility hack
1600	next unless /^$PATH_SEP/o;	2323	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1601		2324	? ()
1602	s/\.map$//;	2325	: normalise $_
1603	push @paths, $_;	2326	} @{ aio_readdir $UNIQUEDIR or [] }
1604	}	2327	]
1605
1606	\@paths
1607	}	2328	}
1608
1609	package cf;
1610		2329
1611	=back	2330	=back
1612		2331
1613	=head3 cf::object	2332	=head3 cf::object
1614		2333
…		…
1618		2337
1619	=over 4	2338	=over 4
1620		2339
1621	=item $ob->inv_recursive	2340	=item $ob->inv_recursive
1622		2341
1623	Returns the inventory of the object _and_ their inventories, recursively.	2342	Returns the inventory of the object I<and> their inventories, recursively,
		2343	but I<not> the object itself.
1624		2344
1625	=cut	2345	=cut
1626		2346
1627	sub inv_recursive_;	2347	sub inv_recursive_;
1628	sub inv_recursive_ {	2348	sub inv_recursive_ {
…		…
1631		2351
1632	sub inv_recursive {	2352	sub inv_recursive {
1633	inv_recursive_ inv $_[0]	2353	inv_recursive_ inv $_[0]
1634	}	2354	}
1635		2355
		2356	=item $ref = $ob->ref
		2357
		2358	Creates and returns a persistent reference to an object that can be stored as a string.
		2359
		2360	=item $ob = cf::object::deref ($refstring)
		2361
		2362	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2363	even if the object actually exists. May block.
		2364
		2365	=cut
		2366
		2367	sub deref {
		2368	my ($ref) = @_;
		2369
		2370	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2371	my ($uuid, $name) = ($1, $2);
		2372	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2373	or return;
		2374	$pl->ob->uuid eq $uuid
		2375	or return;
		2376
		2377	$pl->ob
		2378	} else {
		2379	warn "$ref: cannot resolve object reference\n";
		2380	undef
		2381	}
		2382	}
		2383
1636	package cf;	2384	package cf;
1637		2385
1638	=back	2386	=back
1639		2387
1640	=head3 cf::object::player	2388	=head3 cf::object::player
…		…
1646	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2394	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1647	can be C<undef>. Does the right thing when the player is currently in a	2395	can be C<undef>. Does the right thing when the player is currently in a
1648	dialogue with the given NPC character.	2396	dialogue with the given NPC character.
1649		2397
1650	=cut	2398	=cut
		2399
		2400	our $SAY_CHANNEL = {
		2401	id => "say",
		2402	title => "Map",
		2403	reply => "say ",
		2404	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2405	};
		2406
		2407	our $CHAT_CHANNEL = {
		2408	id => "chat",
		2409	title => "Chat",
		2410	reply => "chat ",
		2411	tooltip => "Player chat and shouts, global to the server.",
		2412	};
1651		2413
1652	# rough implementation of a future "reply" method that works	2414	# rough implementation of a future "reply" method that works
1653	# with dialog boxes.	2415	# with dialog boxes.
1654	#TODO: the first argument must go, split into a $npc->reply_to ( method	2416	#TODO: the first argument must go, split into a $npc->reply_to ( method
1655	sub cf::object::player::reply($$$;$) {	2417	sub cf::object::player::reply($$$;$) {
…		…
1657		2419
1658	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2420	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1659		2421
1660	if ($self->{record_replies}) {	2422	if ($self->{record_replies}) {
1661	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2423	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2424
1662	} else {	2425	} else {
		2426	my $pl = $self->contr;
		2427
		2428	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2429	my $dialog = $pl->{npc_dialog};
		2430	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2431
		2432	} else {
1663	$msg = $npc->name . " says: $msg" if $npc;	2433	$msg = $npc->name . " says: $msg" if $npc;
1664	$self->message ($msg, $flags);	2434	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2435	}
1665	}	2436	}
		2437	}
		2438
		2439	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2440
		2441	=cut
		2442
		2443	sub cf::object::send_msg {
		2444	my $pl = shift->contr
		2445	or return;
		2446	$pl->send_msg (@_);
1666	}	2447	}
1667		2448
1668	=item $player_object->may ("access")	2449	=item $player_object->may ("access")
1669		2450
1670	Returns wether the given player is authorized to access resource "access"	2451	Returns wether the given player is authorized to access resource "access"
…		…
1683		2464
1684	=item $player_object->enter_link	2465	=item $player_object->enter_link
1685		2466
1686	Freezes the player and moves him/her to a special map (C<{link}>).	2467	Freezes the player and moves him/her to a special map (C<{link}>).
1687		2468
1688	The player should be reasonably safe there for short amounts of time. You	2469	The player should be reasonably safe there for short amounts of time (e.g.
1689	I<MUST> call C<leave_link> as soon as possible, though.	2470	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2471	though, as the palyer cannot control the character while it is on the link
		2472	map.
1690		2473
1691	Will never block.	2474	Will never block.
1692		2475
1693	=item $player_object->leave_link ($map, $x, $y)	2476	=item $player_object->leave_link ($map, $x, $y)
1694		2477
…		…
1702	=cut	2485	=cut
1703		2486
1704	sub link_map {	2487	sub link_map {
1705	unless ($LINK_MAP) {	2488	unless ($LINK_MAP) {
1706	$LINK_MAP = cf::map::find "{link}"	2489	$LINK_MAP = cf::map::find "{link}"
1707	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2490	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1708	$LINK_MAP->load;	2491	$LINK_MAP->load;
1709	}	2492	}
1710		2493
1711	$LINK_MAP	2494	$LINK_MAP
1712	}	2495	}
…		…
1717	$self->deactivate_recursive;	2500	$self->deactivate_recursive;
1718		2501
1719	return if UNIVERSAL::isa $self->map, "ext::map_link";	2502	return if UNIVERSAL::isa $self->map, "ext::map_link";
1720		2503
1721	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2504	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1722	if $self->map;	2505	if $self->map && $self->map->{path} ne "{link}";
1723		2506
1724	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2507	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1725	}	2508	}
1726		2509
1727	sub cf::object::player::leave_link {	2510	sub cf::object::player::leave_link {
1728	my ($self, $map, $x, $y) = @_;	2511	my ($self, $map, $x, $y) = @_;
		2512
		2513	return unless $self->contr->active;
1729		2514
1730	my $link_pos = delete $self->{_link_pos};	2515	my $link_pos = delete $self->{_link_pos};
1731		2516
1732	unless ($map) {	2517	unless ($map) {
1733	# restore original map position	2518	# restore original map position
…		…
1747	# use -1 or undef as default coordinates, not 0, 0	2532	# use -1 or undef as default coordinates, not 0, 0
1748	($x, $y) = ($map->enter_x, $map->enter_y)	2533	($x, $y) = ($map->enter_x, $map->enter_y)
1749	if $x <=0 && $y <= 0;	2534	if $x <=0 && $y <= 0;
1750		2535
1751	$map->load;	2536	$map->load;
1752	$map->load_diag;	2537	$map->load_neighbours;
1753		2538
1754	return unless $self->contr->active;	2539	return unless $self->contr->active;
		2540	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1755	$self->activate_recursive;	2541	$self->activate_recursive;
		2542
		2543	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1756	$self->enter_map ($map, $x, $y);	2544	$self->enter_map ($map, $x, $y);
1757	}	2545	}
1758		2546
1759	cf::player->attach (	2547	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1760	on_logout => sub {
1761	my ($pl) = @_;
1762		2548
1763	# abort map switching before logout	2549	Moves the player to the given map-path and coordinates by first freezing
1764	if ($pl->ob->{_link_pos}) {	2550	her, loading and preparing them map, calling the provided $check callback
1765	cf::sync_job {	2551	that has to return the map if sucecssful, and then unfreezes the player on
1766	$pl->ob->leave_link	2552	the new (success) or old (failed) map position. In either case, $done will
1767	};	2553	be called at the end of this process.
1768	}
1769	},
1770	on_login => sub {
1771	my ($pl) = @_;
1772		2554
1773	# try to abort aborted map switching on player login :)	2555	Note that $check will be called with a potentially non-loaded map, so if
1774	# should happen only on crashes	2556	it needs a loaded map it has to call C<< ->load >>.
1775	if ($pl->ob->{_link_pos}) {
1776	$pl->ob->enter_link;
1777	(async {
1778	# we need this sleep as the login has a concurrent enter_exit running
1779	# and this sleep increases chances of the player not ending up in scorn
1780	$pl->ob->reply (undef,
1781	"There was an internal problem at your last logout, "
1782	. "the server will try to bring you to your intended destination in a second.",
1783	cf::NDI_RED);
1784	Coro::Timer::sleep 1;
1785	$pl->ob->leave_link;
1786	})->prio (2);
1787	}
1788	},
1789	);
1790		2557
1791	=item $player_object->goto ($path, $x, $y)
1792
1793	=cut	2558	=cut
		2559
		2560	our $GOTOGEN;
1794		2561
1795	sub cf::object::player::goto {	2562	sub cf::object::player::goto {
1796	my ($self, $path, $x, $y) = @_;	2563	my ($self, $path, $x, $y, $check, $done) = @_;
		2564
		2565	# do generation counting so two concurrent goto's will be executed in-order
		2566	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1797		2567
1798	$self->enter_link;	2568	$self->enter_link;
1799		2569
1800	(async {	2570	(async {
1801	my $map = cf::map::find $path;	2571	$Coro::current->{desc} = "player::goto $path $x $y";
		2572
		2573	# *tag paths override both path and x|y
		2574	if ($path =~ /^\*(.*)$/) {
		2575	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2576	my $ob = $obs[rand @obs];
		2577
		2578	# see if we actually can go there
		2579	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2580	$ob = $obs[rand @obs];
		2581	} else {
		2582	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2583	}
		2584	# else put us there anyways for now #d#
		2585
		2586	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2587	} else {
		2588	($path, $x, $y) = (undef, undef, undef);
		2589	}
		2590	}
		2591
		2592	my $map = eval {
		2593	my $map = defined $path ? cf::map::find $path : undef;
		2594
		2595	if ($map) {
1802	$map = $map->customise_for ($self) if $map;	2596	$map = $map->customise_for ($self);
1803		2597	$map = $check->($map) if $check && $map;
1804	# warn "entering ", $map->path, " at ($x, $y)\n"	2598	} else {
1805	# if $map;
1806
1807	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2599	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
1808		2601
		2602	$map
		2603	};
		2604
		2605	if ($@) {
		2606	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2607	LOG llevError | logBacktrace, Carp::longmess $@;
		2608	}
		2609
		2610	if ($gen == $self->{_goto_generation}) {
		2611	delete $self->{_goto_generation};
1809	$self->leave_link ($map, $x, $y);	2612	$self->leave_link ($map, $x, $y);
		2613	}
		2614
		2615	$done->() if $done;
1810	})->prio (1);	2616	})->prio (1);
1811	}	2617	}
1812		2618
1813	=item $player_object->enter_exit ($exit_object)	2619	=item $player_object->enter_exit ($exit_object)
1814		2620
…		…
1834	}	2640	}
1835		2641
1836	sub prepare_random_map {	2642	sub prepare_random_map {
1837	my ($exit) = @_;	2643	my ($exit) = @_;
1838		2644
1839	my $guard = cf::lock_acquire "exit_prepare:$exit";
1840
1841	# all this does is basically replace the /! path by	2645	# all this does is basically replace the /! path by
1842	# a new random map path (?random/...) with a seed	2646	# a new random map path (?random/...) with a seed
1843	# that depends on the exit object	2647	# that depends on the exit object
1844		2648
1845	my $rmp = parse_random_map_params $exit->msg;	2649	my $rmp = parse_random_map_params $exit->msg;
1846		2650
1847	if ($exit->map) {	2651	if ($exit->map) {
1848	$rmp->{region} = $exit->map->region_name;	2652	$rmp->{region} = $exit->region->name;
1849	$rmp->{origin_map} = $exit->map->path;	2653	$rmp->{origin_map} = $exit->map->path;
1850	$rmp->{origin_x} = $exit->x;	2654	$rmp->{origin_x} = $exit->x;
1851	$rmp->{origin_y} = $exit->y;	2655	$rmp->{origin_y} = $exit->y;
		2656
		2657	$exit->map->touch;
1852	}	2658	}
1853		2659
1854	$rmp->{random_seed} ||= $exit->random_seed;	2660	$rmp->{random_seed} ||= $exit->random_seed;
1855		2661
1856	my $data = cf::to_json $rmp;	2662	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1857	my $md5 = Digest::MD5::md5_hex $data;	2663	my $md5 = Digest::MD5::md5_hex $data;
1858	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2664	my $meta = "$RANDOMDIR/$md5.meta";
1859		2665
1860	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2666	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1861	aio_write $fh, 0, (length $data), $data, 0;	2667	aio_write $fh, 0, (length $data), $data, 0;
1862	undef $fh;	2668	undef $fh;
1863	aio_rename "$meta~", $meta;	2669	aio_rename "$meta~", $meta;
1864		2670
		2671	my $slaying = "?random/$md5";
		2672
		2673	if ($exit->valid) {
1865	$exit->slaying ("?random/$md5");	2674	$exit->slaying ("?random/$md5");
1866	$exit->msg (undef);	2675	$exit->msg (undef);
		2676	}
1867	}	2677	}
1868	}	2678	}
1869		2679
1870	sub cf::object::player::enter_exit {	2680	sub cf::object::player::enter_exit {
1871	my ($self, $exit) = @_;	2681	my ($self, $exit) = @_;
…		…
1873	return unless $self->type == cf::PLAYER;	2683	return unless $self->type == cf::PLAYER;
1874		2684
1875	$self->enter_link;	2685	$self->enter_link;
1876		2686
1877	(async {	2687	(async {
1878	$self->deactivate_recursive; # just to be sure	2688	$Coro::current->{desc} = "enter_exit";
		2689
1879	unless (eval {	2690	unless (eval {
		2691	$self->deactivate_recursive; # just to be sure
		2692
		2693	# random map handling
		2694	{
		2695	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2696
1880	prepare_random_map $exit	2697	prepare_random_map $exit
1881	if $exit->slaying eq "/!";	2698	if $exit->slaying eq "/!";
		2699	}
1882		2700
1883	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2701	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1884	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2702	my $x = $exit->stats->hp;
		2703	my $y = $exit->stats->sp;
1885		2704
		2705	$self->goto ($map, $x, $y);
		2706
		2707	# if exit is damned, update players death & WoR home-position
		2708	$self->contr->savebed ($map, $x, $y)
		2709	if $exit->flag (cf::FLAG_DAMNED);
		2710
1886	1;	2711	1
1887	}) {	2712	}) {
1888	$self->message ("Something went wrong deep within the crossfire server. "	2713	$self->message ("Something went wrong deep within the deliantra server. "
1889	. "I'll try to bring you back to the map you were before. "	2714	. "I'll try to bring you back to the map you were before. "
1890	. "Please report this to the dungeon master!",	2715	. "Please report this to the dungeon master!",
1891	cf::NDI_UNIQUE | cf::NDI_RED);	2716	cf::NDI_UNIQUE | cf::NDI_RED);
1892		2717
1893	warn "ERROR in enter_exit: $@";	2718	warn "ERROR in enter_exit: $@";
1894	$self->leave_link;	2719	$self->leave_link;
1895	}	2720	}
1896	})->prio (1);	2721	})->prio (1);
…		…
1909		2734
1910	sub cf::client::send_drawinfo {	2735	sub cf::client::send_drawinfo {
1911	my ($self, $text, $flags) = @_;	2736	my ($self, $text, $flags) = @_;
1912		2737
1913	utf8::encode $text;	2738	utf8::encode $text;
1914	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2739	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1915	}	2740	}
1916		2741
		2742	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2743
		2744	Send a drawinfo or msg packet to the client, formatting the msg for the
		2745	client if neccessary. C<$type> should be a string identifying the type of
		2746	the message, with C<log> being the default. If C<$color> is negative, suppress
		2747	the message unless the client supports the msg packet.
		2748
		2749	=cut
		2750
		2751	# non-persistent channels (usually the info channel)
		2752	our %CHANNEL = (
		2753	"c/identify" => {
		2754	id => "infobox",
		2755	title => "Identify",
		2756	reply => undef,
		2757	tooltip => "Items recently identified",
		2758	},
		2759	"c/examine" => {
		2760	id => "infobox",
		2761	title => "Examine",
		2762	reply => undef,
		2763	tooltip => "Signs and other items you examined",
		2764	},
		2765	"c/book" => {
		2766	id => "infobox",
		2767	title => "Book",
		2768	reply => undef,
		2769	tooltip => "The contents of a note or book",
		2770	},
		2771	"c/lookat" => {
		2772	id => "infobox",
		2773	title => "Look",
		2774	reply => undef,
		2775	tooltip => "What you saw there",
		2776	},
		2777	"c/who" => {
		2778	id => "infobox",
		2779	title => "Players",
		2780	reply => undef,
		2781	tooltip => "Shows players who are currently online",
		2782	},
		2783	"c/body" => {
		2784	id => "infobox",
		2785	title => "Body Parts",
		2786	reply => undef,
		2787	tooltip => "Shows which body parts you posess and are available",
		2788	},
		2789	"c/uptime" => {
		2790	id => "infobox",
		2791	title => "Uptime",
		2792	reply => undef,
		2793	tooltip => "How long the server has been running since last restart",
		2794	},
		2795	"c/mapinfo" => {
		2796	id => "infobox",
		2797	title => "Map Info",
		2798	reply => undef,
		2799	tooltip => "Information related to the maps",
		2800	},
		2801	"c/party" => {
		2802	id => "party",
		2803	title => "Party",
		2804	reply => "gsay ",
		2805	tooltip => "Messages and chat related to your party",
		2806	},
		2807	);
		2808
		2809	sub cf::client::send_msg {
		2810	my ($self, $channel, $msg, $color, @extra) = @_;
		2811
		2812	$msg = $self->pl->expand_cfpod ($msg)
		2813	unless $color & cf::NDI_VERBATIM;
		2814
		2815	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2816
		2817	# check predefined channels, for the benefit of C
		2818	if ($CHANNEL{$channel}) {
		2819	$channel = $CHANNEL{$channel};
		2820
		2821	$self->ext_msg (channel_info => $channel)
		2822	if $self->can_msg;
		2823
		2824	$channel = $channel->{id};
		2825
		2826	} elsif (ref $channel) {
		2827	# send meta info to client, if not yet sent
		2828	unless (exists $self->{channel}{$channel->{id}}) {
		2829	$self->{channel}{$channel->{id}} = $channel;
		2830	$self->ext_msg (channel_info => $channel)
		2831	if $self->can_msg;
		2832	}
		2833
		2834	$channel = $channel->{id};
		2835	}
		2836
		2837	return unless @extra || length $msg;
		2838
		2839	if ($self->can_msg) {
		2840	# default colour, mask it out
		2841	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2842	if $color & cf::NDI_DEF;
		2843
		2844	my $pkt = "msg "
		2845	. $self->{json_coder}->encode (
		2846	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2847	);
		2848
		2849	# try lzf for large packets
		2850	$pkt = "lzf " . Compress::LZF::compress $pkt
		2851	if 1024 <= length $pkt and $self->{can_lzf};
		2852
		2853	# split very large packets
		2854	if (8192 < length $pkt and $self->{can_lzf}) {
		2855	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2856	$pkt = "frag";
		2857	}
		2858
		2859	$self->send_packet ($pkt);
		2860	} else {
		2861	if ($color >= 0) {
		2862	# replace some tags by gcfclient-compatible ones
		2863	for ($msg) {
		2864	1 while
		2865	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2866	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2867	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2868	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2869	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2870	}
		2871
		2872	$color &= cf::NDI_COLOR_MASK;
		2873
		2874	utf8::encode $msg;
		2875
		2876	if (0 && $msg =~ /\[/) {
		2877	# COMMAND/INFO
		2878	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2879	} else {
		2880	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2881	$self->send_packet ("drawinfo $color $msg")
		2882	}
		2883	}
		2884	}
		2885	}
		2886
		2887	=item $client->ext_msg ($type, @msg)
		2888
		2889	Sends an ext event to the client.
		2890
		2891	=cut
		2892
		2893	sub cf::client::ext_msg($$@) {
		2894	my ($self, $type, @msg) = @_;
		2895
		2896	if ($self->extcmd == 2) {
		2897	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2898	} elsif ($self->extcmd == 1) { # TODO: remove
		2899	push @msg, msgtype => "event_$type";
		2900	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2901	}
		2902	}
		2903
		2904	=item $client->ext_reply ($msgid, @msg)
		2905
		2906	Sends an ext reply to the client.
		2907
		2908	=cut
		2909
		2910	sub cf::client::ext_reply($$@) {
		2911	my ($self, $id, @msg) = @_;
		2912
		2913	if ($self->extcmd == 2) {
		2914	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2915	} elsif ($self->extcmd == 1) {
		2916	#TODO: version 1, remove
		2917	unshift @msg, msgtype => "reply", msgid => $id;
		2918	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2919	}
		2920	}
1917		2921
1918	=item $success = $client->query ($flags, "text", \&cb)	2922	=item $success = $client->query ($flags, "text", \&cb)
1919		2923
1920	Queues a query to the client, calling the given callback with	2924	Queues a query to the client, calling the given callback with
1921	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2925	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1922	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2926	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1923		2927
1924	Queries can fail, so check the return code. Or don't, as queries will become	2928	Queries can fail, so check the return code. Or don't, as queries will
1925	reliable at some point in the future.	2929	become reliable at some point in the future.
1926		2930
1927	=cut	2931	=cut
1928		2932
1929	sub cf::client::query {	2933	sub cf::client::query {
1930	my ($self, $flags, $text, $cb) = @_;	2934	my ($self, $flags, $text, $cb) = @_;
…		…
1938	utf8::encode $text;	2942	utf8::encode $text;
1939	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2943	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1940		2944
1941	$self->send_packet ($self->{query_queue}[0][0])	2945	$self->send_packet ($self->{query_queue}[0][0])
1942	if @{ $self->{query_queue} } == 1;	2946	if @{ $self->{query_queue} } == 1;
		2947
		2948	1
1943	}	2949	}
1944		2950
1945	cf::client->attach (	2951	cf::client->attach (
		2952	on_connect => sub {
		2953	my ($ns) = @_;
		2954
		2955	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2956	},
1946	on_reply => sub {	2957	on_reply => sub {
1947	my ($ns, $msg) = @_;	2958	my ($ns, $msg) = @_;
1948		2959
1949	# this weird shuffling is so that direct followup queries	2960	# this weird shuffling is so that direct followup queries
1950	# get handled first	2961	# get handled first
1951	my $queue = delete $ns->{query_queue}	2962	my $queue = delete $ns->{query_queue}
1952	or return; # be conservative, not sure how that can happen, but we saw a crash here	2963	or return; # be conservative, not sure how that can happen, but we saw a crash here
1953		2964
1954	(shift @$queue)->[1]->($msg);	2965	(shift @$queue)->[1]->($msg);
		2966	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1955		2967
1956	push @{ $ns->{query_queue} }, @$queue;	2968	push @{ $ns->{query_queue} }, @$queue;
1957		2969
1958	if (@{ $ns->{query_queue} } == @$queue) {	2970	if (@{ $ns->{query_queue} } == @$queue) {
1959	if (@$queue) {	2971	if (@$queue) {
…		…
1961	} else {	2973	} else {
1962	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2974	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1963	}	2975	}
1964	}	2976	}
1965	},	2977	},
		2978	on_exticmd => sub {
		2979	my ($ns, $buf) = @_;
		2980
		2981	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2982
		2983	if (ref $msg) {
		2984	my ($type, $reply, @payload) =
		2985	"ARRAY" eq ref $msg
		2986	? @$msg
		2987	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2988
		2989	my @reply;
		2990
		2991	if (my $cb = $EXTICMD{$type}) {
		2992	@reply = $cb->($ns, @payload);
		2993	}
		2994
		2995	$ns->ext_reply ($reply, @reply)
		2996	if $reply;
		2997
		2998	} else {
		2999	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3000	}
		3001
		3002	cf::override;
		3003	},
1966	);	3004	);
1967		3005
1968	=item $client->async (\&cb)	3006	=item $client->async (\&cb)
1969		3007
1970	Create a new coroutine, running the specified callback. The coroutine will	3008	Create a new coroutine, running the specified callback. The coroutine will
…		…
2011	our $safe = new Safe "safe";	3049	our $safe = new Safe "safe";
2012	our $safe_hole = new Safe::Hole;	3050	our $safe_hole = new Safe::Hole;
2013		3051
2014	$SIG{FPE} = 'IGNORE';	3052	$SIG{FPE} = 'IGNORE';
2015		3053
2016	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3054	$safe->permit_only (Opcode::opset qw(
		3055	:base_core :base_mem :base_orig :base_math
		3056	grepstart grepwhile mapstart mapwhile
		3057	sort time
		3058	));
2017		3059
2018	# here we export the classes and methods available to script code	3060	# here we export the classes and methods available to script code
2019		3061
2020	=pod	3062	=pod
2021		3063
2022	The following fucntions and emthods are available within a safe environment:	3064	The following functions and methods are available within a safe environment:
2023		3065
2024	cf::object contr pay_amount pay_player map	3066	cf::object
		3067	contr pay_amount pay_player map x y force_find force_add destroy
		3068	insert remove name archname title slaying race decrease split
		3069
2025	cf::object::player player	3070	cf::object::player
2026	cf::player peaceful	3071	player
2027	cf::map trigger	3072
		3073	cf::player
		3074	peaceful
		3075
		3076	cf::map
		3077	trigger
2028		3078
2029	=cut	3079	=cut
2030		3080
2031	for (	3081	for (
2032	["cf::object" => qw(contr pay_amount pay_player map)],	3082	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3083	insert remove inv nrof name archname title slaying race
		3084	decrease split destroy change_exp)],
2033	["cf::object::player" => qw(player)],	3085	["cf::object::player" => qw(player)],
2034	["cf::player" => qw(peaceful)],	3086	["cf::player" => qw(peaceful)],
2035	["cf::map" => qw(trigger)],	3087	["cf::map" => qw(trigger)],
2036	) {	3088	) {
2037	no strict 'refs';	3089	no strict 'refs';
…		…
2108	=back	3160	=back
2109		3161
2110	=cut	3162	=cut
2111		3163
2112	#############################################################################	3164	#############################################################################
		3165	# the server's init and main functions
2113		3166
2114	=head2 EXTENSION DATABASE SUPPORT	3167	sub load_facedata($) {
		3168	my ($path) = @_;
2115		3169
2116	Crossfire maintains a very simple database for extension use. It can	3170	# HACK to clear player env face cache, we need some signal framework
2117	currently store anything that can be serialised using Storable, which	3171	# for this (global event?)
2118	excludes objects.	3172	%ext::player_env::MUSIC_FACE_CACHE = ();
2119		3173
2120	The parameter C<$family> should best start with the name of the extension	3174	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2121	using it, it should be unique.
2122		3175
2123	=over 4	3176	warn "loading facedata from $path\n";
2124		3177
2125	=item $hashref = cf::db_get $family	3178	my $facedata;
		3179	0 < aio_load $path, $facedata
		3180	or die "$path: $!";
2126		3181
2127	Return a hashref for use by the extension C<$family>, which can be	3182	$facedata = Coro::Storable::thaw $facedata;
2128	modified. After modifications, you have to call C<cf::db_dirty> or
2129	C<cf::db_sync>.
2130		3183
2131	=item $value = cf::db_get $family => $key	3184	$facedata->{version} == 2
		3185	or cf::cleanup "$path: version mismatch, cannot proceed.";
2132		3186
2133	Returns a single value from the database	3187	# patch in the exptable
2134		3188	$facedata->{resource}{"res/exp_table"} = {
2135	=item cf::db_put $family => $hashref	3189	type => FT_RSRC,
2136		3190	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2137	Stores the given family hashref into the database. Updates are delayed, if
2138	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2139
2140	=item cf::db_put $family => $key => $value
2141
2142	Stores the given C<$value> in the family hash. Updates are delayed, if you
2143	want the data to be synced to disk immediately, use C<cf::db_sync>.
2144
2145	=item cf::db_dirty
2146
2147	Marks the database as dirty, to be updated at a later time.
2148
2149	=item cf::db_sync
2150
2151	Immediately write the database to disk I<if it is dirty>.
2152
2153	=cut
2154
2155	our $DB;
2156
2157	{
2158	my $path = cf::localdir . "/database.pst";
2159
2160	sub db_load() {
2161	$DB = stat $path ? Storable::retrieve $path : { };
2162	}
2163
2164	my $pid;
2165
2166	sub db_save() {
2167	waitpid $pid, 0 if $pid;
2168	if (0 == ($pid = fork)) {
2169	$DB->{_meta}{version} = 1;
2170	Storable::nstore $DB, "$path~";
2171	rename "$path~", $path;
2172	cf::_exit 0 if defined $pid;
2173	}
2174	}
2175
2176	my $dirty;
2177
2178	sub db_sync() {
2179	db_save if $dirty;
2180	undef $dirty;
2181	}
2182
2183	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2184	db_sync;
2185	});	3191	};
		3192	cf::cede_to_tick;
2186		3193
2187	sub db_dirty() {
2188	$dirty = 1;
2189	$idle->start;
2190	}	3194	{
		3195	my $faces = $facedata->{faceinfo};
2191		3196
2192	sub db_get($;$) {	3197	while (my ($face, $info) = each %$faces) {
2193	@_ >= 2	3198	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2194	? $DB->{$_[0]}{$_[1]}
2195	: ($DB->{$_[0]} ||= { })
2196	}
2197		3199
2198	sub db_put($$;$) {	3200	cf::face::set_visibility $idx, $info->{visibility};
2199	if (@_ >= 3) {	3201	cf::face::set_magicmap $idx, $info->{magicmap};
2200	$DB->{$_[0]}{$_[1]} = $_[2];	3202	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2201	} else {	3203	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2202	$DB->{$_[0]} = $_[1];
2203	}
2204	db_dirty;
2205	}
2206		3204
2207	cf::global->attach (	3205	cf::cede_to_tick;
2208	prio => 10000,
2209	on_cleanup => sub {
2210	db_sync;
2211	},	3206	}
2212	);
2213	}
2214		3207
2215	#############################################################################	3208	while (my ($face, $info) = each %$faces) {
2216	# the server's main()	3209	next unless $info->{smooth};
2217		3210
2218	sub cfg_load {	3211	my $idx = cf::face::find $face
		3212	or next;
		3213
		3214	if (my $smooth = cf::face::find $info->{smooth}) {
		3215	cf::face::set_smooth $idx, $smooth;
		3216	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3217	} else {
		3218	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3219	}
		3220
		3221	cf::cede_to_tick;
		3222	}
		3223	}
		3224
		3225	{
		3226	my $anims = $facedata->{animinfo};
		3227
		3228	while (my ($anim, $info) = each %$anims) {
		3229	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3230	cf::cede_to_tick;
		3231	}
		3232
		3233	cf::anim::invalidate_all; # d'oh
		3234	}
		3235
		3236	{
		3237	# TODO: for gcfclient pleasure, we should give resources
		3238	# that gcfclient doesn't grok a >10000 face index.
		3239	my $res = $facedata->{resource};
		3240
		3241	while (my ($name, $info) = each %$res) {
		3242	if (defined $info->{type}) {
		3243	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3244	my $data;
		3245
		3246	if ($info->{type} & 1) {
		3247	# prepend meta info
		3248
		3249	my $meta = $enc->encode ({
		3250	name => $name,
		3251	%{ $info->{meta} || {} },
		3252	});
		3253
		3254	$data = pack "(w/a*)*", $meta, $info->{data};
		3255	} else {
		3256	$data = $info->{data};
		3257	}
		3258
		3259	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3260	cf::face::set_type $idx, $info->{type};
		3261	} else {
		3262	$RESOURCE{$name} = $info;
		3263	}
		3264
		3265	cf::cede_to_tick;
		3266	}
		3267	}
		3268
		3269	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3270
		3271	1
		3272	}
		3273
		3274	cf::global->attach (on_resource_update => sub {
		3275	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3276	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3277
		3278	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3279	my $sound = $soundconf->{compat}[$_]
		3280	or next;
		3281
		3282	my $face = cf::face::find "sound/$sound->[1]";
		3283	cf::sound::set $sound->[0] => $face;
		3284	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3285	}
		3286
		3287	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3288	my $face = cf::face::find "sound/$v";
		3289	cf::sound::set $k => $face;
		3290	}
		3291	}
		3292	});
		3293
		3294	register_exticmd fx_want => sub {
		3295	my ($ns, $want) = @_;
		3296
		3297	while (my ($k, $v) = each %$want) {
		3298	$ns->fx_want ($k, $v);
		3299	}
		3300	};
		3301
		3302	sub load_resource_file($) {
		3303	my $guard = lock_acquire "load_resource_file";
		3304
		3305	my $status = load_resource_file_ $_[0];
		3306	get_slot 0.1, 100;
		3307	cf::arch::commit_load;
		3308
		3309	$status
		3310	}
		3311
		3312	sub reload_regions {
		3313	# HACK to clear player env face cache, we need some signal framework
		3314	# for this (global event?)
		3315	%ext::player_env::MUSIC_FACE_CACHE = ();
		3316
		3317	load_resource_file "$MAPDIR/regions"
		3318	or die "unable to load regions file\n";
		3319
		3320	for (cf::region::list) {
		3321	$_->{match} = qr/$_->{match}/
		3322	if exists $_->{match};
		3323	}
		3324	}
		3325
		3326	sub reload_facedata {
		3327	load_facedata "$DATADIR/facedata"
		3328	or die "unable to load facedata\n";
		3329	}
		3330
		3331	sub reload_archetypes {
		3332	load_resource_file "$DATADIR/archetypes"
		3333	or die "unable to load archetypes\n";
		3334	}
		3335
		3336	sub reload_treasures {
		3337	load_resource_file "$DATADIR/treasures"
		3338	or die "unable to load treasurelists\n";
		3339	}
		3340
		3341	sub reload_resources {
		3342	warn "reloading resource files...\n";
		3343
		3344	reload_facedata;
		3345	reload_archetypes;
		3346	reload_regions;
		3347	reload_treasures;
		3348
		3349	warn "finished reloading resource files\n";
		3350	}
		3351
		3352	sub init {
		3353	my $guard = freeze_mainloop;
		3354
		3355	evthread_start IO::AIO::poll_fileno;
		3356
		3357	reload_resources;
		3358	}
		3359
		3360	sub reload_config {
2219	open my $fh, "<:utf8", cf::confdir . "/config"	3361	open my $fh, "<:utf8", "$CONFDIR/config"
2220	or return;	3362	or return;
2221		3363
2222	local $/;	3364	local $/;
2223	*CFG = YAML::Syck::Load <$fh>;	3365	*CFG = YAML::Load <$fh>;
2224		3366
2225	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3367	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2226		3368
2227	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3369	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2228	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3370	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2234	};	3376	};
2235	warn $@ if $@;	3377	warn $@ if $@;
2236	}	3378	}
2237	}	3379	}
2238		3380
		3381	sub pidfile() {
		3382	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3383	or die "$PIDFILE: $!";
		3384	flock $fh, &Fcntl::LOCK_EX
		3385	or die "$PIDFILE: flock: $!";
		3386	$fh
		3387	}
		3388
		3389	# make sure only one server instance is running at any one time
		3390	sub atomic {
		3391	my $fh = pidfile;
		3392
		3393	my $pid = <$fh>;
		3394	kill 9, $pid if $pid > 0;
		3395
		3396	seek $fh, 0, 0;
		3397	print $fh $$;
		3398	}
		3399
2239	sub main {	3400	sub main {
		3401	atomic;
		3402
2240	# we must not ever block the main coroutine	3403	# we must not ever block the main coroutine
2241	local $Coro::idle = sub {	3404	local $Coro::idle = sub {
2242	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3405	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2243	(async {	3406	(async {
2244	Event::one_event;	3407	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3408	EV::loop EV::LOOP_ONESHOT;
2245	})->prio (Coro::PRIO_MAX);	3409	})->prio (Coro::PRIO_MAX);
2246	};	3410	};
2247		3411
2248	cfg_load;	3412	{
2249	db_load;	3413	my $guard = freeze_mainloop;
		3414	reload_config;
		3415	db_init;
2250	load_extensions;	3416	load_extensions;
2251		3417
2252	$TICK_WATCHER->start;	3418	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3419	}
		3420
		3421	utime time, time, $RUNTIMEFILE;
		3422
		3423	# no (long-running) fork's whatsoever before this point(!)
		3424	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3425
2253	Event::loop;	3426	EV::loop;
2254	}	3427	}
2255		3428
2256	#############################################################################	3429	#############################################################################
2257	# initialisation and cleanup	3430	# initialisation and cleanup
2258		3431
2259	# install some emergency cleanup handlers	3432	# install some emergency cleanup handlers
2260	BEGIN {	3433	BEGIN {
		3434	our %SIGWATCHER = ();
2261	for my $signal (qw(INT HUP TERM)) {	3435	for my $signal (qw(INT HUP TERM)) {
2262	Event->signal (	3436	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2263	data => WF_AUTOCANCEL,
2264	signal => $signal,
2265	cb => sub {
2266	cf::cleanup "SIG$signal";	3437	cf::cleanup "SIG$signal";
2267	},
2268	);	3438	};
		3439	}
		3440	}
		3441
		3442	sub write_runtime_sync {
		3443	# first touch the runtime file to show we are still running:
		3444	# the fsync below can take a very very long time.
		3445
		3446	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3447
		3448	my $guard = cf::lock_acquire "write_runtime";
		3449
		3450	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3451	or return;
		3452
		3453	my $value = $cf::RUNTIME + 90 + 10;
		3454	# 10 is the runtime save interval, for a monotonic clock
		3455	# 60 allows for the watchdog to kill the server.
		3456
		3457	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3458	and return;
		3459
		3460	# always fsync - this file is important
		3461	aio_fsync $fh
		3462	and return;
		3463
		3464	# touch it again to show we are up-to-date
		3465	aio_utime $fh, undef, undef;
		3466
		3467	close $fh
		3468	or return;
		3469
		3470	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3471	and return;
		3472
		3473	warn "runtime file written.\n";
		3474
2269	}	3475	1
		3476	}
		3477
		3478	our $uuid_lock;
		3479	our $uuid_skip;
		3480
		3481	sub write_uuid_sync($) {
		3482	$uuid_skip ||= $_[0];
		3483
		3484	return if $uuid_lock;
		3485	local $uuid_lock = 1;
		3486
		3487	my $uuid = "$LOCALDIR/uuid";
		3488
		3489	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3490	or return;
		3491
		3492	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3493	$uuid_skip = 0;
		3494
		3495	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3496	and return;
		3497
		3498	# always fsync - this file is important
		3499	aio_fsync $fh
		3500	and return;
		3501
		3502	close $fh
		3503	or return;
		3504
		3505	aio_rename "$uuid~", $uuid
		3506	and return;
		3507
		3508	warn "uuid file written ($value).\n";
		3509
		3510	1
		3511
		3512	}
		3513
		3514	sub write_uuid($$) {
		3515	my ($skip, $sync) = @_;
		3516
		3517	$sync ? write_uuid_sync $skip
		3518	: async { write_uuid_sync $skip };
2270	}	3519	}
2271		3520
2272	sub emergency_save() {	3521	sub emergency_save() {
2273	my $freeze_guard = cf::freeze_mainloop;	3522	my $freeze_guard = cf::freeze_mainloop;
2274		3523
…		…
2280	# and maps saved/destroyed asynchronously.	3529	# and maps saved/destroyed asynchronously.
2281	warn "begin emergency player save\n";	3530	warn "begin emergency player save\n";
2282	for my $login (keys %cf::PLAYER) {	3531	for my $login (keys %cf::PLAYER) {
2283	my $pl = $cf::PLAYER{$login} or next;	3532	my $pl = $cf::PLAYER{$login} or next;
2284	$pl->valid or next;	3533	$pl->valid or next;
		3534	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2285	$pl->save;	3535	$pl->save;
2286	}	3536	}
2287	warn "end emergency player save\n";	3537	warn "end emergency player save\n";
2288		3538
2289	warn "begin emergency map save\n";	3539	warn "begin emergency map save\n";
…		…
2291	my $map = $cf::MAP{$path} or next;	3541	my $map = $cf::MAP{$path} or next;
2292	$map->valid or next;	3542	$map->valid or next;
2293	$map->save;	3543	$map->save;
2294	}	3544	}
2295	warn "end emergency map save\n";	3545	warn "end emergency map save\n";
		3546
		3547	warn "begin emergency database checkpoint\n";
		3548	BDB::db_env_txn_checkpoint $DB_ENV;
		3549	warn "end emergency database checkpoint\n";
		3550
		3551	warn "begin write uuid\n";
		3552	write_uuid_sync 1;
		3553	warn "end write uuid\n";
2296	};	3554	};
2297		3555
2298	warn "leave emergency perl save\n";	3556	warn "leave emergency perl save\n";
2299	}	3557	}
2300		3558
		3559	sub post_cleanup {
		3560	my ($make_core) = @_;
		3561
		3562	warn Carp::longmess "post_cleanup backtrace"
		3563	if $make_core;
		3564
		3565	my $fh = pidfile;
		3566	unlink $PIDFILE if <$fh> == $$;
		3567	}
		3568
		3569	# a safer delete_package, copied from Symbol
		3570	sub clear_package($) {
		3571	my $pkg = shift;
		3572
		3573	# expand to full symbol table name if needed
		3574	unless ($pkg =~ /^main::.*::$/) {
		3575	$pkg = "main$pkg" if $pkg =~ /^::/;
		3576	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3577	$pkg .= '::' unless $pkg =~ /::$/;
		3578	}
		3579
		3580	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3581	my $stem_symtab = *{$stem}{HASH};
		3582
		3583	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3584	or return;
		3585
		3586	# clear all symbols
		3587	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3588	for my $name (keys %$leaf_symtab) {
		3589	_gv_clear *{"$pkg$name"};
		3590	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3591	}
		3592	warn "cleared package #$pkg\n";#d#
		3593	}
		3594
		3595	our $RELOAD; # how many times to reload
		3596
2301	sub reload() {	3597	sub do_reload_perl() {
2302	# can/must only be called in main	3598	# can/must only be called in main
2303	if ($Coro::current != $Coro::main) {	3599	if ($Coro::current != $Coro::main) {
2304	warn "can only reload from main coroutine";	3600	warn "can only reload from main coroutine";
2305	return;	3601	return;
2306	}	3602	}
2307		3603
		3604	return if $RELOAD++;
		3605
		3606	while ($RELOAD) {
2308	warn "reloading...";	3607	warn "reloading...";
2309		3608
2310	warn "cancelling server ticker";	3609	warn "entering sync_job";
2311	$TICK_WATCHER->cancel;
2312		3610
		3611	cf::sync_job {
		3612	cf::write_runtime_sync; # external watchdog should not bark
2313	cf::emergency_save;	3613	cf::emergency_save;
		3614	cf::write_runtime_sync; # external watchdog should not bark
2314		3615
2315	eval {	3616	warn "syncing database to disk";
		3617	BDB::db_env_txn_checkpoint $DB_ENV;
		3618
2316	# if anything goes wrong in here, we should simply crash as we already saved	3619	# if anything goes wrong in here, we should simply crash as we already saved
2317		3620
2318	warn "syncing database to disk";
2319	cf::db_sync;
2320
2321	warn "cancelling all WF_AUTOCANCEL watchers";
2322	for (Event::all_watchers) {
2323	$_->cancel if $_->data & WF_AUTOCANCEL;
2324	}
2325
2326	warn "flushing outstanding aio requests";	3621	warn "flushing outstanding aio requests";
2327	for (;;) {	3622	while (IO::AIO::nreqs || BDB::nreqs) {
2328	IO::AIO::flush;	3623	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2329	Coro::cede;
2330	last unless IO::AIO::nreqs;
2331	warn "iterate...";
2332	}
2333
2334	warn "cancelling all extension coros";
2335	$_->cancel for values %EXT_CORO;
2336	%EXT_CORO = ();
2337
2338	warn "removing commands";
2339	%COMMAND = ();
2340
2341	warn "removing ext commands";
2342	%EXTCMD = ();
2343
2344	warn "unloading/nuking all extensions";
2345	for my $pkg (@EXTS) {
2346	warn "... unloading $pkg";
2347
2348	if (my $cb = $pkg->can ("unload")) {
2349	eval {
2350	$cb->($pkg);
2351	1
2352	} or warn "$pkg unloaded, but with errors: $@";
2353	}	3624	}
2354		3625
2355	warn "... nuking $pkg";	3626	warn "cancelling all extension coros";
2356	Symbol::delete_package $pkg;	3627	$_->cancel for values %EXT_CORO;
2357	}	3628	%EXT_CORO = ();
2358		3629
2359	warn "unloading all perl modules loaded from $LIBDIR";	3630	warn "removing commands";
2360	while (my ($k, $v) = each %INC) {	3631	%COMMAND = ();
2361	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2362		3632
		3633	warn "removing ext/exti commands";
		3634	%EXTCMD = ();
		3635	%EXTICMD = ();
		3636
		3637	warn "unloading/nuking all extensions";
		3638	for my $pkg (@EXTS) {
2363	warn "... unloading $k";	3639	warn "... unloading $pkg";
2364	delete $INC{$k};
2365		3640
2366	$k =~ s/\.pm$//;
2367	$k =~ s/\//::/g;
2368
2369	if (my $cb = $k->can ("unload_module")) {	3641	if (my $cb = $pkg->can ("unload")) {
		3642	eval {
2370	$cb->();	3643	$cb->($pkg);
		3644	1
		3645	} or warn "$pkg unloaded, but with errors: $@";
		3646	}
		3647
		3648	warn "... clearing $pkg";
		3649	clear_package $pkg;
2371	}	3650	}
2372		3651
2373	Symbol::delete_package $k;	3652	warn "unloading all perl modules loaded from $LIBDIR";
		3653	while (my ($k, $v) = each %INC) {
		3654	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3655
		3656	warn "... unloading $k";
		3657	delete $INC{$k};
		3658
		3659	$k =~ s/\.pm$//;
		3660	$k =~ s/\//::/g;
		3661
		3662	if (my $cb = $k->can ("unload_module")) {
		3663	$cb->();
		3664	}
		3665
		3666	clear_package $k;
2374	}	3667	}
2375		3668
2376	warn "getting rid of safe::, as good as possible";	3669	warn "getting rid of safe::, as good as possible";
2377	Symbol::delete_package "safe::$_"	3670	clear_package "safe::$_"
2378	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3671	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2379		3672
2380	warn "unloading cf.pm \"a bit\"";	3673	warn "unloading cf.pm \"a bit\"";
2381	delete $INC{"cf.pm"};	3674	delete $INC{"cf.pm"};
		3675	delete $INC{"cf/pod.pm"};
2382		3676
2383	# don't, removes xs symbols, too,	3677	# don't, removes xs symbols, too,
2384	# and global variables created in xs	3678	# and global variables created in xs
2385	#Symbol::delete_package __PACKAGE__;	3679	#clear_package __PACKAGE__;
2386		3680
2387	warn "unload completed, starting to reload now";	3681	warn "unload completed, starting to reload now";
2388		3682
2389	warn "reloading cf.pm";	3683	warn "reloading cf.pm";
2390	require cf;	3684	require cf;
2391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3685	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2392		3686
2393	warn "loading config and database again";	3687	warn "loading config and database again";
2394	cf::cfg_load;	3688	cf::reload_config;
2395	cf::db_load;
2396		3689
2397	warn "loading extensions";	3690	warn "loading extensions";
2398	cf::load_extensions;	3691	cf::load_extensions;
2399		3692
2400	warn "reattaching attachments to objects/players";	3693	warn "reattaching attachments to objects/players";
2401	_global_reattach;	3694	_global_reattach; # objects, sockets
2402	warn "reattaching attachments to maps";	3695	warn "reattaching attachments to maps";
2403	reattach $_ for values %MAP;	3696	reattach $_ for values %MAP;
		3697	warn "reattaching attachments to players";
		3698	reattach $_ for values %PLAYER;
2404		3699
2405	warn "restarting server ticker";	3700	warn "leaving sync_job";
2406		3701
2407	$TICK_WATCHER->start;	3702	1
		3703	} or do {
		3704	warn $@;
		3705	cf::cleanup "error while reloading, exiting.";
		3706	};
		3707
		3708	warn "reloaded";
		3709	--$RELOAD;
		3710	}
		3711	};
		3712
		3713	our $RELOAD_WATCHER; # used only during reload
		3714
		3715	sub reload_perl() {
		3716	# doing reload synchronously and two reloads happen back-to-back,
		3717	# coro crashes during coro_state_free->destroy here.
		3718
		3719	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3720	do_reload_perl;
		3721	undef $RELOAD_WATCHER;
2408	};	3722	};
2409		3723	}
2410	if ($@) {
2411	warn $@;
2412	warn "error while reloading, exiting.";
2413	exit 1;
2414	}
2415
2416	warn "reloaded";
2417	};
2418
2419	our $RELOAD_WATCHER; # used only during reload
2420		3724
2421	register_command "reload" => sub {	3725	register_command "reload" => sub {
2422	my ($who, $arg) = @_;	3726	my ($who, $arg) = @_;
2423		3727
2424	if ($who->flag (FLAG_WIZ)) {	3728	if ($who->flag (FLAG_WIZ)) {
2425	$who->message ("reloading server.");	3729	$who->message ("reloading server.");
2426		3730	async {
2427	# doing reload synchronously and two reloads happen back-to-back,	3731	$Coro::current->{desc} = "perl_reload";
2428	# coro crashes during coro_state_free->destroy here.
2429
2430	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2431	reload;	3732	reload_perl;
2432	undef $RELOAD_WATCHER;
2433	});	3733	};
2434	}	3734	}
2435	};	3735	};
2436		3736
2437	unshift @INC, $LIBDIR;	3737	unshift @INC, $LIBDIR;
2438		3738
2439	my $bug_warning = 0;	3739	my $bug_warning = 0;
2440		3740
2441	$TICK_WATCHER = Event->timer (	3741	our @WAIT_FOR_TICK;
2442	reentrant => 0,	3742	our @WAIT_FOR_TICK_BEGIN;
2443	parked => 1,	3743
2444	prio => 0,	3744	sub wait_for_tick {
2445	at => $NEXT_TICK || $TICK,	3745	return if tick_inhibit || $Coro::current == $Coro::main;
2446	data => WF_AUTOCANCEL,	3746
2447	cb => sub {	3747	my $signal = new Coro::Signal;
		3748	push @WAIT_FOR_TICK, $signal;
		3749	$signal->wait;
		3750	}
		3751
		3752	sub wait_for_tick_begin {
		3753	return if tick_inhibit || $Coro::current == $Coro::main;
		3754
		3755	my $signal = new Coro::Signal;
		3756	push @WAIT_FOR_TICK_BEGIN, $signal;
		3757	$signal->wait;
		3758	}
		3759
		3760	sub tick {
2448	if ($Coro::current != $Coro::main) {	3761	if ($Coro::current != $Coro::main) {
2449	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3762	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2450	unless ++$bug_warning > 10;	3763	unless ++$bug_warning > 10;
2451	return;	3764	return;
2452	}	3765	}
2453		3766
2454	$NOW = Event::time;
2455
2456	cf::server_tick; # one server iteration	3767	cf::server_tick; # one server iteration
2457	$RUNTIME += $TICK;
2458	$NEXT_TICK += $TICK;
2459		3768
2460	$WAIT_FOR_TICK->broadcast;	3769	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2461	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3770	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2462		3771	Coro::async_pool {
2463	# if we are delayed by four ticks or more, skip them all	3772	$Coro::current->{desc} = "runtime saver";
2464	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2465
2466	$TICK_WATCHER->at ($NEXT_TICK);
2467	$TICK_WATCHER->start;
2468	},
2469	);
2470
2471	IO::AIO::max_poll_time $TICK * 0.2;
2472
2473	$AIO_POLL_WATCHER = Event->io (
2474	fd => IO::AIO::poll_fileno,
2475	poll => 'r',
2476	prio => 5,
2477	data => WF_AUTOCANCEL,
2478	cb => \&IO::AIO::poll_cb,
2479	);
2480
2481	$WRITE_RUNTIME_WATCHER = Event->timer (
2482	data => WF_AUTOCANCEL,
2483	after => 1,
2484	interval => 10,
2485	prio => 6, # keep it lowest so it acts like a watchdog
2486	cb => Coro::unblock_sub {
2487	write_runtime	3773	write_runtime_sync
2488	or warn "ERROR: unable to write runtime file: $!";	3774	or warn "ERROR: unable to write runtime file: $!";
		3775	};
2489	},	3776	}
2490	);	3777
		3778	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3779	$sig->send;
		3780	}
		3781	while (my $sig = shift @WAIT_FOR_TICK) {
		3782	$sig->send;
		3783	}
		3784
		3785	$LOAD = ($NOW - $TICK_START) / $TICK;
		3786	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3787
		3788	if (0) {
		3789	if ($NEXT_TICK) {
		3790	my $jitter = $TICK_START - $NEXT_TICK;
		3791	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3792	warn "jitter $JITTER\n";#d#
		3793	}
		3794	}
		3795	}
		3796
		3797	{
		3798	# configure BDB
		3799
		3800	BDB::min_parallel 8;
		3801	BDB::max_poll_reqs $TICK * 0.1;
		3802	$AnyEvent::BDB::WATCHER->priority (1);
		3803
		3804	unless ($DB_ENV) {
		3805	$DB_ENV = BDB::db_env_create;
		3806	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3807	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3808	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3809	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3810	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3811
		3812	cf::sync_job {
		3813	eval {
		3814	BDB::db_env_open
		3815	$DB_ENV,
		3816	$BDBDIR,
		3817	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3818	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3819	0666;
		3820
		3821	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3822	};
		3823
		3824	cf::cleanup "db_env_open(db): $@" if $@;
		3825	};
		3826	}
		3827
		3828	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3829	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3830	};
		3831	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3832	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3833	};
		3834	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3835	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3836	};
		3837	}
		3838
		3839	{
		3840	# configure IO::AIO
		3841
		3842	IO::AIO::min_parallel 8;
		3843	IO::AIO::max_poll_time $TICK * 0.1;
		3844	undef $AnyEvent::AIO::WATCHER;
		3845	}
		3846
		3847	my $_log_backtrace;
		3848
		3849	sub _log_backtrace {
		3850	my ($msg, @addr) = @_;
		3851
		3852	$msg =~ s/\n//;
		3853
		3854	# limit the # of concurrent backtraces
		3855	if ($_log_backtrace < 2) {
		3856	++$_log_backtrace;
		3857	my $perl_bt = Carp::longmess $msg;
		3858	async {
		3859	$Coro::current->{desc} = "abt $msg";
		3860
		3861	my @bt = fork_call {
		3862	@addr = map { sprintf "%x", $_ } @addr;
		3863	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3864	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3865	or die "addr2line: $!";
		3866
		3867	my @funcs;
		3868	my @res = <$fh>;
		3869	chomp for @res;
		3870	while (@res) {
		3871	my ($func, $line) = splice @res, 0, 2, ();
		3872	push @funcs, "[$func] $line";
		3873	}
		3874
		3875	@funcs
		3876	};
		3877
		3878	LOG llevInfo, "[ABT] $perl_bt\n";
		3879	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3880	LOG llevInfo, "[ABT] $_\n" for @bt;
		3881	--$_log_backtrace;
		3882	};
		3883	} else {
		3884	LOG llevInfo, "[ABT] $msg\n";
		3885	LOG llevInfo, "[ABT] [suppressed]\n";
		3886	}
		3887	}
		3888
		3889	# load additional modules
		3890	use cf::pod;
2491		3891
2492	END { cf::emergency_save }	3892	END { cf::emergency_save }
2493		3893
2494	1	3894	1
2495		3895

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