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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.220 by root, Sat Feb 17 23:54:35 2007 UTC vs.
Revision 1.474 by root, Thu Jul 16 21:42:56 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.5 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
20	use BDB ();	54	use BDB ();
21	use Data::Dumper;	55	use Data::Dumper;
22	use Digest::MD5;	56	use Digest::MD5;
23	use Fcntl;	57	use Fcntl;
		58	use YAML ();
24	use IO::AIO 2.32 ();	59	use IO::AIO ();
25	use YAML::Syck ();
26	use Time::HiRes;	60	use Time::HiRes;
27	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
28		63
		64	AnyEvent::detect;
		65
		66	# configure various modules to our taste
		67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		76
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		79
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		81
40	our %COMMAND = ();	82	our %COMMAND = ();
41	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
42		84
43	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
47		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	92	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		93
51	our $TICK = MAX_TIME * 1e-6;	94	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	95	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	96	our $LIBDIR = "$DATADIR/ext";
		97	our $PODDIR = "$DATADIR/pod";
		98	our $MAPDIR = "$DATADIR/" . mapdir;
		99	our $LOCALDIR = localdir;
		100	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		101	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		102	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		103	our $RANDOMDIR = "$LOCALDIR/random";
		104	our $BDBDIR = "$LOCALDIR/db";
		105	our $PIDFILE = "$LOCALDIR/pid";
		106	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		107
		108	our %RESOURCE;
		109
		110	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	111	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	112	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	113	our $USE_FSYNC = 1; # use fsync to write maps - default on
58		114
		115	our $BDB_DEADLOCK_WATCHER;
		116	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	117	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	118	our $DB_ENV;
		119
		120	our @EXTRA_MODULES = qw(pod mapscript);
61		121
62	our %CFG;	122	our %CFG;
63		123
64	our $UPTIME; $UPTIME ||= time;	124	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	125	our $RUNTIME;
		126	our $NOW;
66		127
67	our %PLAYER; # all users	128	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	129	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	130	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		131
76	# used to convert map paths into valid unix filenames by replacing / by ∕	132	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	133	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		134
		135	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		136	our $LOADAVG; # same thing, but with alpha-smoothing
		137	our $JITTER; # average jitter
		138	our $TICK_START; # for load detecting purposes
		139
		140	our @POST_INIT;
		141
		142	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		143	our $REALLY_UNLOOP; # never set to true, please :)
		144
79	binmode STDOUT;	145	binmode STDOUT;
80	binmode STDERR;	146	binmode STDERR;
81		147
82	# read virtual server time, if available	148	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	149	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	150	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	151	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	152	$RUNTIME = <$fh> + 0.;
87	}	153	}
88		154
89	mkdir cf::localdir;	155	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	156
91	mkdir cf::localdir . "/" . cf::tmpdir;	157	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	158	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		159
96	our $EMERGENCY_POSITION;	160	our $EMERGENCY_POSITION;
97		161
98	sub cf::map::normalise;	162	sub cf::map::normalise;
99		163
…		…
110	=item $cf::RUNTIME	174	=item $cf::RUNTIME
111		175
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	176	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	177	every server tick.
114		178
115	=item $cf::LIBDIR	179	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		180	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		181	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		182
117	The perl library directory, where extensions and cf-specific modules can	183	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	184	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		185	unique-items directory, player file directory, random maps directory and
		186	database environment.
119		187
120	=item $cf::NOW	188	=item $cf::NOW
121		189
122	The time of the last (current) server tick.	190	The time of the last (current) server tick.
123		191
124	=item $cf::TICK	192	=item $cf::TICK
125		193
126	The interval between server ticks, in seconds.	194	The interval between server ticks, in seconds.
127		195
		196	=item $cf::LOADAVG
		197
		198	The current CPU load on the server (alpha-smoothed), as a value between 0
		199	(none) and 1 (overloaded), indicating how much time is spent on processing
		200	objects per tick. Healthy values are < 0.5.
		201
		202	=item $cf::LOAD
		203
		204	The raw value load value from the last tick.
		205
128	=item %cf::CFG	206	=item %cf::CFG
129		207
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	208	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	209	from wherever your confdir points to.
132		210
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	211	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		212
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	213	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	214	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	215	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.	216
		217	=item @cf::INVOKE_RESULTS
		218
		219	This array contains the results of the last C<invoke ()> call. When
		220	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		221	that call.
139		222
140	=back	223	=back
141		224
142	=cut	225	=cut
143		226
144	BEGIN {	227	BEGIN {
145	*CORE::GLOBAL::warn = sub {	228	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	229	my $msg = join "", @_;
147	utf8::encode $msg;
148		230
149	$msg .= "\n"	231	$msg .= "\n"
150	unless $msg =~ /\n$/;	232	unless $msg =~ /\n$/;
151		233
		234	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		235
152	LOG llevError, $msg;	236	LOG llevError, $msg;
153	};	237	};
154	}	238	}
		239
		240	$Coro::State::DIEHOOK = sub {
		241	return unless $^S eq 0; # "eq", not "=="
		242
		243	if ($Coro::current == $Coro::main) {#d#
		244	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		245	return;#d#
		246	}#d#
		247
		248	# kill coroutine otherwise
		249	warn Carp::longmess $_[0];
		250	Coro::terminate
		251	};
		252
		253	$SIG{__DIE__} = sub { }; #d#?
155		254
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	255	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	256	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	257	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	258	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	259	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		260	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	261	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		262
163	# we bless all objects into (empty) derived classes to force a method lookup	263	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	264	# within the Safe compartment.
165	for my $pkg (qw(	265	for my $pkg (qw(
166	cf::global cf::attachable	266	cf::global cf::attachable
167	cf::object cf::object::player	267	cf::object cf::object::player
168	cf::client cf::player	268	cf::client cf::player
169	cf::arch cf::living	269	cf::arch cf::living
		270	cf::map cf::mapspace
170	cf::map cf::party cf::region	271	cf::party cf::region
171	)) {	272	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	273	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	274	}
175		275
176	$Event::DIED = sub {	276	$EV::DIED = sub {
177	warn "error in event callback: @_";	277	warn "error in event callback: @_";
178	};	278	};
		279
		280	#############################################################################
179		281
180	=head2 UTILITY FUNCTIONS	282	=head2 UTILITY FUNCTIONS
181		283
182	=over 4	284	=over 4
183		285
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	304	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	305	$d
204	} || "[unable to dump $_[0]: '$@']";	306	} || "[unable to dump $_[0]: '$@']";
205	}	307	}
206		308
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	309	=item $ref = cf::decode_json $json
210		310
211	Converts a JSON string into the corresponding perl data structure.	311	Converts a JSON string into the corresponding perl data structure.
212		312
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	313	=item $json = cf::encode_json $ref
221		314
222	Converts a perl data structure into its JSON representation.	315	Converts a perl data structure into its JSON representation.
223		316
224	=cut	317	=cut
225		318
226	sub to_json($) {	319	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	320
228	JSON::Syck::Dump $_[0]	321	sub encode_json($) { $json_coder->encode ($_[0]) }
		322	sub decode_json($) { $json_coder->decode ($_[0]) }
		323
		324	=item cf::post_init { BLOCK }
		325
		326	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		327	but I<before> the server starts ticking again.
		328
		329	The cdoeblock will have a single boolean argument to indicate whether this
		330	is a reload or not.
		331
		332	=cut
		333
		334	sub post_init(&) {
		335	push @POST_INIT, shift;
229	}	336	}
230		337
231	=item cf::lock_wait $string	338	=item cf::lock_wait $string
232		339
233	Wait until the given lock is available. See cf::lock_acquire.	340	Wait until the given lock is available. See cf::lock_acquire.
234		341
235	=item my $lock = cf::lock_acquire $string	342	=item my $lock = cf::lock_acquire $string
236		343
237	Wait until the given lock is available and then acquires it and returns	344	Wait until the given lock is available and then acquires it and returns
238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	345	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
239	for example when the coroutine gets canceled), the lock is automatically	346	for example when the coroutine gets canceled), the lock is automatically
240	returned.	347	returned.
241		348
		349	Locks are *not* recursive, locking from the same coro twice results in a
		350	deadlocked coro.
		351
242	Lock names should begin with a unique identifier (for example, cf::map::find	352	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	353	uses map_find and cf::map::load uses map_load).
244		354
245	=cut	355	=item $locked = cf::lock_active $string
246		356
247	our %LOCK;	357	Return true if the lock is currently active, i.e. somebody has locked it.
		358
		359	=cut
		360
		361	our $LOCKS = new Coro::SemaphoreSet;
248		362
249	sub lock_wait($) {	363	sub lock_wait($) {
250	my ($key) = @_;	364	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	365	}
258		366
259	sub lock_acquire($) {	367	sub lock_acquire($) {
260	my ($key) = @_;	368	$LOCKS->guard ($_[0])
		369	}
261		370
262	# wait, to be sure we are not locked	371	sub lock_active($) {
263	lock_wait $key;	372	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	373	}
272		374
273	sub freeze_mainloop {	375	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	376	tick_inhibit_inc;
275		377
276	my $guard = Coro::guard {	378	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	379	}
		380
		381	=item cf::periodic $interval, $cb
		382
		383	Like EV::periodic, but randomly selects a starting point so that the actions
		384	get spread over timer.
		385
		386	=cut
		387
		388	sub periodic($$) {
		389	my ($interval, $cb) = @_;
		390
		391	my $start = rand List::Util::min 180, $interval;
		392
		393	EV::periodic $start, $interval, 0, $cb
		394	}
		395
		396	=item cf::get_slot $time[, $priority[, $name]]
		397
		398	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		399	This call blocks and returns only when you have at least C<$time> seconds
		400	of cpu time till the next tick. The slot is only valid till the next cede.
		401
		402	The optional C<$name> can be used to identify the job to run. It might be
		403	used for statistical purposes and should identify the same time-class.
		404
		405	Useful for short background jobs.
		406
		407	=cut
		408
		409	our @SLOT_QUEUE;
		410	our $SLOT_QUEUE;
		411
		412	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		413	$SLOT_QUEUE = Coro::async {
		414	$Coro::current->desc ("timeslot manager");
		415
		416	my $signal = new Coro::Signal;
		417
		418	while () {
		419	next_job:
		420	my $avail = cf::till_tick;
		421	if ($avail > 0.01) {
		422	for (0 .. $#SLOT_QUEUE) {
		423	if ($SLOT_QUEUE[$_][0] < $avail) {
		424	my $job = splice @SLOT_QUEUE, $_, 1, ();
		425	$job->[2]->send;
		426	Coro::cede;
		427	goto next_job;
		428	}
		429	}
		430	}
		431
		432	if (@SLOT_QUEUE) {
		433	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		434	push @cf::WAIT_FOR_TICK, $signal;
		435	$signal->wait;
		436	} else {
		437	Coro::schedule;
		438	}
278	};	439	}
279	$TICK_WATCHER->stop;	440	};
280	$guard	441
		442	sub get_slot($;$$) {
		443	return if tick_inhibit || $Coro::current == $Coro::main;
		444
		445	my ($time, $pri, $name) = @_;
		446
		447	$time = $TICK * .6 if $time > $TICK * .6;
		448	my $sig = new Coro::Signal;
		449
		450	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		451	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		452	$SLOT_QUEUE->ready;
		453	$sig->wait;
281	}	454	}
282		455
283	=item cf::async { BLOCK }	456	=item cf::async { BLOCK }
284		457
285	Currently the same as Coro::async_pool, meaning you cannot use	458	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		463
291	BEGIN { *async = \&Coro::async_pool }	464	BEGIN { *async = \&Coro::async_pool }
292		465
293	=item cf::sync_job { BLOCK }	466	=item cf::sync_job { BLOCK }
294		467
295	The design of crossfire+ requires that the main coro ($Coro::main) is	468	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	469	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	470	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		471	acceptable.
298		472
299	If it must be done, put the blocking parts into C<sync_job>. This will run	473	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	474	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	475	server will be frozen during this time, so the block should either finish
302	fast or be very important.	476	fast or be very important.
…		…
305		479
306	sub sync_job(&) {	480	sub sync_job(&) {
307	my ($job) = @_;	481	my ($job) = @_;
308		482
309	if ($Coro::current == $Coro::main) {	483	if ($Coro::current == $Coro::main) {
		484	my $time = EV::time;
		485
310	# this is the main coro, too bad, we have to block	486	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	487	# till the operation succeeds, freezing the server :/
312		488
313	# TODO: use suspend/resume instead	489	LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	490
315	my $freeze_guard = freeze_mainloop;	491	my $freeze_guard = freeze_mainloop;
316		492
317	my $busy = 1;	493	my $busy = 1;
318	my @res;	494	my @res;
319		495
320	(async {	496	(async {
		497	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	498	@res = eval { $job->() };
322	warn $@ if $@;	499	warn $@ if $@;
323	undef $busy;	500	undef $busy;
324	})->prio (Coro::PRIO_MAX);	501	})->prio (Coro::PRIO_MAX);
325		502
326	while ($busy) {	503	while ($busy) {
327	Coro::cede or Event::one_event;	504	if (Coro::nready) {
		505	Coro::cede_notself;
		506	} else {
		507	EV::loop EV::LOOP_ONESHOT;
328	}	508	}
		509	}
		510
		511	my $time = EV::time - $time;
		512
		513	$TICK_START += $time; # do not account sync jobs to server load
329		514
330	wantarray ? @res : $res[0]	515	wantarray ? @res : $res[0]
331	} else {	516	} else {
332	# we are in another coroutine, how wonderful, everything just works	517	# we are in another coroutine, how wonderful, everything just works
333		518
…		…
353	$EXT_CORO{$coro+0} = $coro;	538	$EXT_CORO{$coro+0} = $coro;
354		539
355	$coro	540	$coro
356	}	541	}
357		542
358	sub write_runtime {	543	=item fork_call { }, $args
359	my $guard = cf::lock_acquire "write_runtime";
360		544
361	my $runtime = cf::localdir . "/runtime";	545	Executes the given code block with the given arguments in a seperate
		546	process, returning the results. Everything must be serialisable with
		547	Coro::Storable. May, of course, block. Note that the executed sub may
		548	never block itself or use any form of event handling.
362		549
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	550	=cut
364	or return;
365		551
366	my $value = $cf::RUNTIME + 90 + 10;	552	sub fork_call(&@) {
367	# 10 is the runtime save interval, for a monotonic clock	553	my ($cb, @args) = @_;
368	# 60 allows for the watchdog to kill the server.
369		554
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	555	# we seemingly have to make a local copy of the whole thing,
371	and return;	556	# otherwise perl prematurely frees the stuff :/
		557	# TODO: investigate and fix (likely this will be rather laborious)
372		558
373	# always fsync - this file is important	559	my @res = Coro::Util::fork_eval {
374	aio_fsync $fh	560	reset_signals;
375	and return;	561	&$cb
		562	}, @args;
376		563
377	close $fh	564	wantarray ? @res : $res[-1]
378	or return;	565	}
379		566
380	aio_rename "$runtime~", $runtime	567	=item $coin = coin_from_name $name
381	and return;
382		568
		569	=cut
		570
		571	our %coin_alias = (
		572	"silver" => "silvercoin",
		573	"silvercoin" => "silvercoin",
		574	"silvercoins" => "silvercoin",
		575	"gold" => "goldcoin",
		576	"goldcoin" => "goldcoin",
		577	"goldcoins" => "goldcoin",
		578	"platinum" => "platinacoin",
		579	"platinumcoin" => "platinacoin",
		580	"platinumcoins" => "platinacoin",
		581	"platina" => "platinacoin",
		582	"platinacoin" => "platinacoin",
		583	"platinacoins" => "platinacoin",
		584	"royalty" => "royalty",
		585	"royalties" => "royalty",
		586	);
		587
		588	sub coin_from_name($) {
		589	$coin_alias{$_[0]}
		590	? cf::arch::find $coin_alias{$_[0]}
		591	: undef
		592	}
		593
		594	=item $value = cf::db_get $family => $key
		595
		596	Returns a single value from the environment database.
		597
		598	=item cf::db_put $family => $key => $value
		599
		600	Stores the given C<$value> in the family. It can currently store binary
		601	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		602
		603	=item $db = cf::db_table "name"
		604
		605	Create and/or open a new database table. The string must not be "db" and must be unique
		606	within each server.
		607
		608	=cut
		609
		610	sub db_table($) {
		611	my ($name) = @_;
		612	my $db = BDB::db_create $DB_ENV;
		613
		614	eval {
		615	$db->set_flags (BDB::CHKSUM);
		616
		617	utf8::encode $name;
		618	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		619	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		620	cf::cleanup "db_open(db): $!" if $!;
		621	};
		622	cf::cleanup "db_open(db): $@" if $@;
		623
		624	$db
		625	}
		626
		627	our $DB;
		628
		629	sub db_init {
		630	cf::sync_job {
		631	$DB ||= db_table "db";
		632	};
		633	}
		634
		635	sub db_get($$) {
		636	my $key = "$_[0]/$_[1]";
		637
		638	cf::sync_job {
		639	BDB::db_get $DB, undef, $key, my $data;
		640
		641	$! ? ()
		642	: $data
383	1	643	}
		644	}
		645
		646	sub db_put($$$) {
		647	BDB::dbreq_pri 4;
		648	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		649	}
		650
		651	=item cf::cache $id => [$paths...], $processversion => $process
		652
		653	Generic caching function that returns the value of the resource $id,
		654	caching and regenerating as required.
		655
		656	This function can block.
		657
		658	=cut
		659
		660	sub cache {
		661	my ($id, $src, $processversion, $process) = @_;
		662
		663	my $meta =
		664	join "\x00",
		665	$processversion,
		666	map {
		667	aio_stat $_
		668	and Carp::croak "$_: $!";
		669
		670	($_, (stat _)[7,9])
		671	} @$src;
		672
		673	my $dbmeta = db_get cache => "$id/meta";
		674	if ($dbmeta ne $meta) {
		675	# changed, we may need to process
		676
		677	my @data;
		678	my $md5;
		679
		680	for (0 .. $#$src) {
		681	0 <= aio_load $src->[$_], $data[$_]
		682	or Carp::croak "$src->[$_]: $!";
		683	}
		684
		685	# if processing is expensive, check
		686	# checksum first
		687	if (1) {
		688	$md5 =
		689	join "\x00",
		690	$processversion,
		691	map {
		692	cf::cede_to_tick;
		693	($src->[$_], Digest::MD5::md5_hex $data[$_])
		694	} 0.. $#$src;
		695
		696
		697	my $dbmd5 = db_get cache => "$id/md5";
		698	if ($dbmd5 eq $md5) {
		699	db_put cache => "$id/meta", $meta;
		700
		701	return db_get cache => "$id/data";
		702	}
		703	}
		704
		705	my $t1 = Time::HiRes::time;
		706	my $data = $process->(\@data);
		707	my $t2 = Time::HiRes::time;
		708
		709	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		710
		711	db_put cache => "$id/data", $data;
		712	db_put cache => "$id/md5" , $md5;
		713	db_put cache => "$id/meta", $meta;
		714
		715	return $data;
		716	}
		717
		718	db_get cache => "$id/data"
		719	}
		720
		721	=item cf::datalog type => key => value, ...
		722
		723	Log a datalog packet of the given type with the given key-value pairs.
		724
		725	=cut
		726
		727	sub datalog($@) {
		728	my ($type, %kv) = @_;
		729	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	730	}
385		731
386	=back	732	=back
387		733
388	=cut	734	=cut
389		735
390	#############################################################################	736	#############################################################################
391		737
392	=head2 ATTACHABLE OBJECTS	738	=head2 ATTACHABLE OBJECTS
393		739
394	Many objects in crossfire are so-called attachable objects. That means you can	740	Many objects in deliantra are so-called attachable objects. That means you can
395	attach callbacks/event handlers (a collection of which is called an "attachment")	741	attach callbacks/event handlers (a collection of which is called an "attachment")
396	to it. All such attachable objects support the following methods.	742	to it. All such attachable objects support the following methods.
397		743
398	In the following description, CLASS can be any of C<global>, C<object>	744	In the following description, CLASS can be any of C<global>, C<object>
399	C<player>, C<client> or C<map> (i.e. the attachable objects in	745	C<player>, C<client> or C<map> (i.e. the attachable objects in
400	crossfire+).	746	Deliantra).
401		747
402	=over 4	748	=over 4
403		749
404	=item $attachable->attach ($attachment, key => $value...)	750	=item $attachable->attach ($attachment, key => $value...)
405		751
…		…
449	=item cf::CLASS::attachment $name, ...	795	=item cf::CLASS::attachment $name, ...
450		796
451	Register an attachment by C<$name> through which attachable objects of the	797	Register an attachment by C<$name> through which attachable objects of the
452	given CLASS can refer to this attachment.	798	given CLASS can refer to this attachment.
453		799
454	Some classes such as crossfire maps and objects can specify attachments	800	Some classes such as deliantra maps and objects can specify attachments
455	that are attached at load/instantiate time, thus the need for a name.	801	that are attached at load/instantiate time, thus the need for a name.
456		802
457	These calls expect any number of the following handler/hook descriptions:	803	These calls expect any number of the following handler/hook descriptions:
458		804
459	=over 4	805	=over 4
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	914	$registry = $CB_TYPE[$object_type] ||= [];
569		915
570	} elsif ($type eq "subtype") {	916	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	917	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	918	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	919	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		920
575	} elsif ($type eq "package") {	921	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	922	my $pkg = shift @arg;
577		923
578	while (my ($name, $id) = each %cb_id) {	924	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	953	_attach $registry, $klass, @attach;
608	}	954	}
609		955
610	$obj->{$name} = \%arg;	956	$obj->{$name} = \%arg;
611	} else {	957	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	958	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	959	}
614		960
615	$obj->{_attachment}{$name} = undef;	961	$obj->{_attachment}{$name} = undef;
616	}	962	}
617		963
…		…
619	if (ref $_[0]) {	965	if (ref $_[0]) {
620	_object_attach @_;	966	_object_attach @_;
621	} else {	967	} else {
622	_attach shift->_attach_registry, @_;	968	_attach shift->_attach_registry, @_;
623	}	969	}
		970	_recalc_want;
624	};	971	};
625		972
626	# all those should be optimised	973	# all those should be optimised
627	sub cf::attachable::detach {	974	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	975	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	978	delete $obj->{_attachment}{$name};
632	reattach ($obj);	979	reattach ($obj);
633	} else {	980	} else {
634	Carp::croak "cannot, currently, detach class attachments";	981	Carp::croak "cannot, currently, detach class attachments";
635	}	982	}
		983	_recalc_want;
636	};	984	};
637		985
638	sub cf::attachable::attached {	986	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	987	my ($obj, $name) = @_;
640		988
…		…
655	";	1003	";
656	die if $@;	1004	die if $@;
657	}	1005	}
658		1006
659	our $override;	1007	our $override;
660	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1008	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
661		1009
662	sub override {	1010	sub override {
663	$override = 1;	1011	$override = 1;
664	@invoke_results = ();	1012	@INVOKE_RESULTS = (@_);
665	}	1013	}
666		1014
667	sub do_invoke {	1015	sub do_invoke {
668	my $event = shift;	1016	my $event = shift;
669	my $callbacks = shift;	1017	my $callbacks = shift;
670		1018
671	@invoke_results = ();	1019	@INVOKE_RESULTS = ();
672		1020
673	local $override;	1021	local $override;
674		1022
675	for (@$callbacks) {	1023	for (@$callbacks) {
676	eval { &{$_->[1]} };	1024	eval { &{$_->[1]} };
…		…
685	}	1033	}
686		1034
687	0	1035	0
688	}	1036	}
689		1037
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1038	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		1039
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1040	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		1041
694	Generate an object-specific event with the given arguments.	1042	Generate an object-specific event with the given arguments.
695		1043
696	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1044	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
697	removed in future versions), and there is no public API to access override	1045	removed in future versions), and there is no public API to access override
698	results (if you must, access C<@cf::invoke_results> directly).	1046	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		1047
700	=back	1048	=back
701		1049
702	=cut	1050	=cut
703		1051
704	#############################################################################	1052	#############################################################################
705	# object support	1053	# object support
		1054
		1055	sub _object_equal($$);
		1056	sub _object_equal($$) {
		1057	my ($a, $b) = @_;
		1058
		1059	return 0 unless (ref $a) eq (ref $b);
		1060
		1061	if ("HASH" eq ref $a) {
		1062	my @ka = keys %$a;
		1063	my @kb = keys %$b;
		1064
		1065	return 0 if @ka != @kb;
		1066
		1067	for (0 .. $#ka) {
		1068	return 0 unless $ka[$_] eq $kb[$_];
		1069	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1070	}
		1071
		1072	} elsif ("ARRAY" eq ref $a) {
		1073
		1074	return 0 if @$a != @$b;
		1075
		1076	for (0 .. $#$a) {
		1077	return 0 unless _object_equal $a->[$_], $b->[$_];
		1078	}
		1079
		1080	} elsif ($a ne $b) {
		1081	return 0;
		1082	}
		1083
		1084	1
		1085	}
		1086
		1087	our $SLOW_MERGES;#d#
		1088	sub _can_merge {
		1089	my ($ob1, $ob2) = @_;
		1090
		1091	++$SLOW_MERGES;#d#
		1092
		1093	# we do the slow way here
		1094	return _object_equal $ob1, $ob2
		1095	}
706		1096
707	sub reattach {	1097	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1098	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1099	my ($obj) = @_;
710		1100
		1101	# no longer needed after getting rid of delete_package?
711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1102	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
712		1103
713	my $registry = $obj->registry;	1104	my $registry = $obj->registry;
714		1105
715	@$registry = ();	1106	@$registry = ();
716		1107
…		…
731	cf::attachable->attach (	1122	cf::attachable->attach (
732	prio => -1000000,	1123	prio => -1000000,
733	on_instantiate => sub {	1124	on_instantiate => sub {
734	my ($obj, $data) = @_;	1125	my ($obj, $data) = @_;
735		1126
736	$data = from_json $data;	1127	$data = decode_json $data;
737		1128
738	for (@$data) {	1129	for (@$data) {
739	my ($name, $args) = @$_;	1130	my ($name, $args) = @$_;
740		1131
741	$obj->attach ($name, %{$args || {} });	1132	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1148	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1149	my ($filename, $rdata, $objs) = @_;
759		1150
760	sync_job {	1151	sync_job {
761	if (length $$rdata) {	1152	if (length $$rdata) {
		1153	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1154	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1155	$decname, length $$rdata, scalar @$objs;
764		1156
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1157	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1158	aio_chmod $fh, SAVE_MODE;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1159	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	aio_fsync $fh if $cf::USE_FSYNC;	1160	if ($cf::USE_FSYNC) {
		1161	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1162	aio_fsync $fh;
		1163	}
769	close $fh;	1164	aio_close $fh;
770		1165
771	if (@$objs) {	1166	if (@$objs) {
772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1167	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
773	chmod SAVE_MODE, $fh;	1168	aio_chmod $fh, SAVE_MODE;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1169	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1170	aio_write $fh, 0, (length $data), $data, 0;
776	aio_fsync $fh if $cf::USE_FSYNC;	1171	if ($cf::USE_FSYNC) {
		1172	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1173	aio_fsync $fh;
		1174	}
777	close $fh;	1175	aio_close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1176	aio_rename "$filename.pst~", "$filename.pst";
779	}	1177	}
780	} else {	1178	} else {
781	aio_unlink "$filename.pst";	1179	aio_unlink "$filename.pst";
782	}	1180	}
783		1181
784	aio_rename "$filename~", $filename;	1182	aio_rename "$filename~", $filename;
		1183
		1184	$filename =~ s%/[^/]+$%%;
		1185	aio_pathsync $filename if $cf::USE_FSYNC;
785	} else {	1186	} else {
786	warn "FATAL: $filename~: $!\n";	1187	warn "unable to save objects: $filename~: $!\n";
787	}	1188	}
788	} else {	1189	} else {
789	aio_unlink $filename;	1190	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1191	aio_unlink "$filename.pst";
791	}	1192	}
792	}	1193	};
793	}	1194	}
794		1195
795	sub object_freezer_as_string {	1196	sub object_freezer_as_string {
796	my ($rdata, $objs) = @_;	1197	my ($rdata, $objs) = @_;
797		1198
…		…
809	or return;	1210	or return;
810		1211
811	unless (aio_stat "$filename.pst") {	1212	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1213	(aio_load "$filename.pst", $av) >= 0
813	or return;	1214	or return;
		1215
814	$av = eval { (Storable::thaw $av)->{objs} };	1216	my $st = eval { Coro::Storable::thaw $av };
		1217	$av = $st->{objs};
815	}	1218	}
816		1219
		1220	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1221	warn sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1222	$decname, length $data, scalar @{$av || []};
		1223
819	return ($data, $av);	1224	($data, $av)
820	}	1225	}
		1226
		1227	=head2 COMMAND CALLBACKS
		1228
		1229	=over 4
		1230
		1231	=cut
821		1232
822	#############################################################################	1233	#############################################################################
823	# command handling &c	1234	# command handling &c
824		1235
825	=item cf::register_command $name => \&callback($ob,$args);	1236	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1249	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1250	}
840		1251
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1252	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1253
843	Register a callbackf ro execution when the client sends an extcmd packet.	1254	Register a callback for execution when the client sends an (synchronous)
		1255	extcmd packet. Ext commands will be processed in the order they are
		1256	received by the server, like other user commands. The first argument is
		1257	the logged-in player. Ext commands can only be processed after a player
		1258	has logged in successfully.
844		1259
845	If the callback returns something, it is sent back as if reply was being	1260	If the callback returns something, it is sent back as if reply was being
846	called.	1261	called.
847		1262
		1263	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1264
		1265	Register a callback for execution when the client sends an (asynchronous)
		1266	exticmd packet. Exti commands are processed by the server as soon as they
		1267	are received, i.e. out of order w.r.t. other commands. The first argument
		1268	is a client socket. Exti commands can be received anytime, even before
		1269	log-in.
		1270
		1271	If the callback returns something, it is sent back as if reply was being
		1272	called.
		1273
848	=cut	1274	=cut
849		1275
850	sub register_extcmd {	1276	sub register_extcmd {
851	my ($name, $cb) = @_;	1277	my ($name, $cb) = @_;
852		1278
853	$EXTCMD{$name} = $cb;	1279	$EXTCMD{$name} = $cb;
854	}	1280	}
		1281
		1282	sub register_exticmd {
		1283	my ($name, $cb) = @_;
		1284
		1285	$EXTICMD{$name} = $cb;
		1286	}
		1287
		1288	use File::Glob ();
855		1289
856	cf::player->attach (	1290	cf::player->attach (
857	on_command => sub {	1291	on_command => sub {
858	my ($pl, $name, $params) = @_;	1292	my ($pl, $name, $params) = @_;
859		1293
…		…
867	cf::override;	1301	cf::override;
868	},	1302	},
869	on_extcmd => sub {	1303	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1304	my ($pl, $buf) = @_;
871		1305
872	my $msg = eval { from_json $buf };	1306	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1307
874	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
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1316	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1317	@reply = $cb->($pl, @payload);
877	$pl->ext_reply ($msg->{msgid}, %reply);
878	}
879	}	1318	}
		1319
		1320	$pl->ext_reply ($reply, @reply)
		1321	if $reply;
		1322
880	} else {	1323	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1324	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1325	}
883		1326
884	cf::override;	1327	cf::override;
885	},	1328	},
886	);	1329	);
887		1330
		1331	# "readahead" all extensions
888	sub load_extension {	1332	sub cache_extensions {
889	my ($path) = @_;	1333	my $grp = IO::AIO::aio_group;
890		1334
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1335	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
892	my $base = $1;	1336	for (grep /\.ext$/, @{$_[0]}) {
893	my $pkg = $1;	1337	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}	1338	}
916	die $@;
917	}	1339	};
918		1340
919	push @EXTS, $pkg;	1341	$grp
920	}	1342	}
921		1343
922	sub load_extensions {	1344	sub load_extensions {
		1345	cf::sync_job {
		1346	my %todo;
		1347
923	for my $ext (<$LIBDIR/*.ext>) {	1348	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1349	next unless -r $path;
925	eval {	1350
926	load_extension $ext;	1351	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1352	my $base = $1;
		1353	my $pkg = $1;
		1354	$pkg =~ s/[^[:word:]]/_/g;
		1355	$pkg = "ext::$pkg";
		1356
		1357	open my $fh, "<:utf8", $path
		1358	or die "$path: $!";
		1359
		1360	my $source = do { local $/; <$fh> };
		1361
		1362	my %ext = (
		1363	path => $path,
		1364	base => $base,
		1365	pkg => $pkg,
		1366	);
		1367
		1368	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1369	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1370
		1371	$ext{source} =
		1372	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1373	. "#line 1 \"$path\"\n{\n"
		1374	. $source
		1375	. "\n};\n1";
		1376
		1377	$todo{$base} = \%ext;
		1378	}
		1379
		1380	my %done;
		1381	while (%todo) {
		1382	my $progress;
		1383
		1384	while (my ($k, $v) = each %todo) {
		1385	for (split /,\s*/, $v->{meta}{depends}) {
		1386	goto skip
		1387	unless exists $done{$_};
		1388	}
		1389
		1390	warn "... loading '$k' into '$v->{pkg}'\n";
		1391
		1392	unless (eval $v->{source}) {
		1393	my $msg = $@ ? "$v->{path}: $@\n"
		1394	: "$v->{base}: extension inactive.\n";
		1395
		1396	if (exists $v->{meta}{mandatory}) {
		1397	warn $msg;
		1398	cf::cleanup "mandatory extension failed to load, exiting.";
		1399	}
		1400
		1401	warn $msg;
		1402	}
		1403
		1404	$done{$k} = delete $todo{$k};
		1405	push @EXTS, $v->{pkg};
		1406	$progress = 1;
927	1	1407	}
928	} or warn "$ext not loaded: $@";	1408
		1409	skip:
		1410	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1411	unless $progress;
		1412	}
929	}	1413	};
930	}	1414	}
931		1415
932	#############################################################################	1416	#############################################################################
933		1417
		1418	=back
		1419
934	=head2 CORE EXTENSIONS	1420	=head2 CORE EXTENSIONS
935		1421
936	Functions and methods that extend core crossfire objects.	1422	Functions and methods that extend core deliantra objects.
937		1423
938	=cut	1424	=cut
939		1425
940	package cf::player;	1426	package cf::player;
941		1427
…		…
943		1429
944	=head3 cf::player	1430	=head3 cf::player
945		1431
946	=over 4	1432	=over 4
947		1433
		1434	=item cf::player::num_playing
		1435
		1436	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1437
		1438	=cut
		1439
		1440	sub num_playing {
		1441	scalar grep
		1442	$_->ob->map
		1443	&& !$_->hidden
		1444	&& !$_->ob->flag (cf::FLAG_WIZ),
		1445	cf::player::list
		1446	}
		1447
948	=item cf::player::find $login	1448	=item cf::player::find $login
949		1449
950	Returns the given player object, loading it if necessary (might block).	1450	Returns the given player object, loading it if necessary (might block).
951		1451
952	=cut	1452	=cut
953		1453
954	sub playerdir($) {	1454	sub playerdir($) {
955	cf::localdir	1455	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1456	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1457	}
961		1458
962	sub path($) {	1459	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1460	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1461
965	(playerdir $login) . "/$login.pl"	1462	(playerdir $login) . "/playerdata"
966	}	1463	}
967		1464
968	sub find_active($) {	1465	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1466	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1467	and $cf::PLAYER{$_[0]}->active
…		…
973		1470
974	sub exists($) {	1471	sub exists($) {
975	my ($login) = @_;	1472	my ($login) = @_;
976		1473
977	$cf::PLAYER{$login}	1474	$cf::PLAYER{$login}
978	or cf::sync_job { !aio_stat path $login }	1475	or !aio_stat path $login
979	}	1476	}
980		1477
981	sub find($) {	1478	sub find($) {
982	return $cf::PLAYER{$_[0]} || do {	1479	return $cf::PLAYER{$_[0]} || do {
983	my $login = $_[0];	1480	my $login = $_[0];
984		1481
985	my $guard = cf::lock_acquire "user_find:$login";	1482	my $guard = cf::lock_acquire "user_find:$login";
986		1483
987	$cf::PLAYER{$_[0]} || do {	1484	$cf::PLAYER{$_[0]} || do {
988	my $pl = load_pl path $login	1485	# rename old playerfiles to new ones
		1486	#TODO: remove when no longer required
		1487	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1488	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1489	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1490	aio_unlink +(playerdir $login) . "/$login.pl";
		1491
		1492	my $f = new_from_file cf::object::thawer path $login
989	or return;	1493	or return;
		1494
		1495	my $pl = cf::player::load_pl $f
		1496	or return;
		1497
		1498	local $cf::PLAYER_LOADING{$login} = $pl;
		1499	$f->resolve_delayed_derefs;
990	$cf::PLAYER{$login} = $pl	1500	$cf::PLAYER{$login} = $pl
991	}	1501	}
992	}	1502	}
993	}	1503	}
994		1504
…		…
1003	return if $pl->{deny_save};	1513	return if $pl->{deny_save};
1004		1514
1005	aio_mkdir playerdir $pl, 0770;	1515	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1516	$pl->{last_save} = $cf::RUNTIME;
1007		1517
		1518	cf::get_slot 0.01;
		1519
1008	$pl->save_pl ($path);	1520	$pl->save_pl ($path);
1009	Coro::cede;	1521	cf::cede_to_tick;
1010	}	1522	}
1011		1523
1012	sub new($) {	1524	sub new($) {
1013	my ($login) = @_;	1525	my ($login) = @_;
1014		1526
…		…
1020	$cf::PLAYER{$login} = $self;	1532	$cf::PLAYER{$login} = $self;
1021		1533
1022	$self	1534	$self
1023	}	1535	}
1024		1536
		1537	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1538
		1539	=cut
		1540
		1541	sub send_msg {
		1542	my $ns = shift->ns
		1543	or return;
		1544	$ns->send_msg (@_);
		1545	}
		1546
1025	=item $pl->quit_character	1547	=item $pl->quit_character
1026		1548
1027	Nukes the player without looking back. If logged in, the connection will	1549	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1550	be destroyed. May block for a long time.
1029		1551
…		…
1033	my ($pl) = @_;	1555	my ($pl) = @_;
1034		1556
1035	my $name = $pl->ob->name;	1557	my $name = $pl->ob->name;
1036		1558
1037	$pl->{deny_save} = 1;	1559	$pl->{deny_save} = 1;
1038	$pl->password ("*"); # this should lock out the player until we nuked the dir	1560	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1039		1561
1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1562	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1041	$pl->deactivate;	1563	$pl->deactivate;
		1564	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1565	$pl->ob->check_score;
1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1566	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1043	$pl->ns->destroy if $pl->ns;	1567	$pl->ns->destroy if $pl->ns;
1044		1568
1045	my $path = playerdir $pl;	1569	my $path = playerdir $pl;
1046	my $temp = "$path~$cf::RUNTIME~deleting~";	1570	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;	1578	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1055		1579
1056	IO::AIO::aio_rmtree $temp;	1580	IO::AIO::aio_rmtree $temp;
1057	}	1581	}
1058		1582
		1583	=item $pl->kick
		1584
		1585	Kicks a player out of the game. This destroys the connection.
		1586
		1587	=cut
		1588
		1589	sub kick {
		1590	my ($pl, $kicker) = @_;
		1591
		1592	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1593	$pl->killer ("kicked");
		1594	$pl->ns->destroy;
		1595	}
		1596
1059	=item cf::player::list_logins	1597	=item cf::player::list_logins
1060		1598
1061	Returns am arrayref of all valid playernames in the system, can take a	1599	Returns am arrayref of all valid playernames in the system, can take a
1062	while and may block, so not sync_job-capable, ever.	1600	while and may block, so not sync_job-capable, ever.
1063		1601
1064	=cut	1602	=cut
1065		1603
1066	sub list_logins {	1604	sub list_logins {
1067	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1605	my $dirs = aio_readdir $PLAYERDIR
1068	or return [];	1606	or return [];
1069		1607
1070	my @logins;	1608	my @logins;
1071		1609
1072	for my $login (@$dirs) {	1610	for my $login (@$dirs) {
		1611	my $path = path $login;
		1612
		1613	# a .pst is a dead give-away for a valid player
		1614	# if no pst file found, open and chekc for blocked users
		1615	if (aio_stat "$path.pst") {
1073	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1616	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1074	aio_read $fh, 0, 512, my $buf, 0 or next;	1617	aio_read $fh, 0, 512, my $buf, 0 or next;
1075	$buf !~ /^password -------------$/m or next; # official not-valid tag	1618	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1619	}
1076		1620
1077	utf8::decode $login;	1621	utf8::decode $login;
1078	push @logins, $login;	1622	push @logins, $login;
1079	}	1623	}
1080		1624
…		…
1107	}	1651	}
1108		1652
1109	\@paths	1653	\@paths
1110	}	1654	}
1111		1655
		1656	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1657
		1658	Expand deliantra pod fragments into protocol xml.
		1659
1112	=item $player->ext_reply ($msgid, $msgtype, %msg)	1660	=item $player->ext_reply ($msgid, @msg)
1113		1661
1114	Sends an ext reply to the player.	1662	Sends an ext reply to the player.
1115		1663
1116	=cut	1664	=cut
1117		1665
1118	sub ext_reply($$$%) {	1666	sub ext_reply($$@) {
1119	my ($self, $id, %msg) = @_;	1667	my ($self, $id, @msg) = @_;
1120		1668
1121	$msg{msgid} = $id;	1669	$self->ns->ext_reply ($id, @msg)
1122
1123	$self->send ("ext " . cf::to_json \%msg);
1124	}	1670	}
1125		1671
1126	package cf;	1672	=item $player->ext_msg ($type, @msg)
		1673
		1674	Sends an ext event to the client.
		1675
		1676	=cut
		1677
		1678	sub ext_msg($$@) {
		1679	my ($self, $type, @msg) = @_;
		1680
		1681	$self->ns->ext_msg ($type, @msg);
		1682	}
		1683
		1684	=head3 cf::region
		1685
		1686	=over 4
		1687
		1688	=cut
		1689
		1690	package cf::region;
		1691
		1692	=item cf::region::find_by_path $path
		1693
		1694	Tries to decuce the likely region for a map knowing only its path.
		1695
		1696	=cut
		1697
		1698	sub find_by_path($) {
		1699	my ($path) = @_;
		1700
		1701	my ($match, $specificity);
		1702
		1703	for my $region (list) {
		1704	if ($region->{match} && $path =~ $region->{match}) {
		1705	($match, $specificity) = ($region, $region->specificity)
		1706	if $region->specificity > $specificity;
		1707	}
		1708	}
		1709
		1710	$match
		1711	}
1127		1712
1128	=back	1713	=back
1129
1130		1714
1131	=head3 cf::map	1715	=head3 cf::map
1132		1716
1133	=over 4	1717	=over 4
1134		1718
…		…
1146	our $MAX_RESET = 3600;	1730	our $MAX_RESET = 3600;
1147	our $DEFAULT_RESET = 3000;	1731	our $DEFAULT_RESET = 3000;
1148		1732
1149	sub generate_random_map {	1733	sub generate_random_map {
1150	my ($self, $rmp) = @_;	1734	my ($self, $rmp) = @_;
		1735
		1736	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1737
1151	# mit "rum" bekleckern, nicht	1738	# mit "rum" bekleckern, nicht
1152	$self->_create_random_map (	1739	$self->_create_random_map (
1153	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1740	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1154	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1741	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1155	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1742	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1189	my ($self, $merge) = @_;	1776	my ($self, $merge) = @_;
1190		1777
1191	# we have to keep some variables in memory intact	1778	# we have to keep some variables in memory intact
1192	local $self->{path};	1779	local $self->{path};
1193	local $self->{load_path};	1780	local $self->{load_path};
1194	local $self->{deny_save};
1195	local $self->{deny_reset};
1196		1781
1197	$self->SUPER::thawer_merge ($merge);	1782	$self->SUPER::thawer_merge ($merge);
1198	}	1783	}
1199		1784
1200	sub normalise {	1785	sub normalise {
…		…
1247	$self->init; # pass $1 etc.	1832	$self->init; # pass $1 etc.
1248	return $self;	1833	return $self;
1249	}	1834	}
1250	}	1835	}
1251		1836
1252	Carp::carp "unable to resolve path '$path' (base '$base').";	1837	Carp::cluck "unable to resolve path '$path' (base '$base').";
1253	()	1838	()
1254	}	1839	}
1255		1840
1256	sub init {	1841	sub init {
1257	my ($self) = @_;	1842	my ($self) = @_;
…		…
1272		1857
1273	# the original (read-only) location	1858	# the original (read-only) location
1274	sub load_path {	1859	sub load_path {
1275	my ($self) = @_;	1860	my ($self) = @_;
1276		1861
1277	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1862	"$MAPDIR/$self->{path}.map"
1278	}	1863	}
1279		1864
1280	# the temporary/swap location	1865	# the temporary/swap location
1281	sub save_path {	1866	sub save_path {
1282	my ($self) = @_;	1867	my ($self) = @_;
1283		1868
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1869	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1285	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1870	"$TMPDIR/$path.map"
1286	}	1871	}
1287		1872
1288	# the unique path, undef == no special unique path	1873	# the unique path, undef == no special unique path
1289	sub uniq_path {	1874	sub uniq_path {
1290	my ($self) = @_;	1875	my ($self) = @_;
1291		1876
1292	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1877	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1293	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1878	"$UNIQUEDIR/$path"
1294	}	1879	}
1295		1880
1296	# and all this just because we cannot iterate over	1881	sub decay_objects {
1297	# all maps in C++...
1298	sub change_all_map_light {
1299	my ($change) = @_;	1882	my ($self) = @_;
1300		1883
1301	$_->change_map_light ($change)	1884	return if $self->{deny_reset};
1302	for grep $_->outdoor, values %cf::MAP;	1885
		1886	$self->do_decay_objects;
1303	}	1887	}
1304		1888
1305	sub unlink_save {	1889	sub unlink_save {
1306	my ($self) = @_;	1890	my ($self) = @_;
1307		1891
…		…
1312		1896
1313	sub load_header_from($) {	1897	sub load_header_from($) {
1314	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1315		1899
1316	utf8::encode $path;	1900	utf8::encode $path;
1317	#aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1318	# or return;
1319
1320	$self->_load_header ($path)
1321	or return;	1902	or return;
		1903
		1904	$self->_load_header ($f)
		1905	or return;
		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
1322		1909
1323	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1324		1911
1325	1	1912	1
1326	}	1913	}
…		…
1365	$self->load_header_orig	1952	$self->load_header_orig
1366	or return;	1953	or return;
1367	$self->prepare_orig;	1954	$self->prepare_orig;
1368	}	1955	}
1369		1956
		1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
		1959
		1960	$self->default_region (cf::region::find_by_path $self->{path})
		1961	unless $self->default_region;
		1962
1370	1	1963	1
1371	}	1964	}
1372		1965
1373	sub find;	1966	sub find;
1374	sub find {	1967	sub find {
1375	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1376		1969
1377	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1378		1971
		1972	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1379	cf::lock_wait "map_find:$path";	1973	my $guard2 = cf::lock_acquire "map_find:$path";
1380		1974
1381	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
1382	my $guard = cf::lock_acquire "map_find:$path";
1383	my $map = new_from_path cf::map $path	1976	my $map = new_from_path cf::map $path
1384	or return;	1977	or return;
1385		1978
1386	$map->{last_save} = $cf::RUNTIME;	1979	$map->{last_save} = $cf::RUNTIME;
1387		1980
1388	$map->load_header	1981	$map->load_header
1389	or return;	1982	or return;
1390		1983
1391	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1984	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1392	# doing this can freeze the server in a sync job, obviously	1985	# doing this can freeze the server in a sync job, obviously
1393	#$cf::WAIT_FOR_TICK->wait;	1986	#$cf::WAIT_FOR_TICK->wait;
		1987	undef $guard2;
		1988	undef $guard1;
1394	$map->reset;	1989	$map->reset;
1395	undef $guard;
1396	return find $path;	1990	return find $path;
1397	}	1991	}
1398		1992
1399	$cf::MAP{$path} = $map	1993	$cf::MAP{$path} = $map
1400	}	1994	}
…		…
1407	my ($self) = @_;	2001	my ($self) = @_;
1408		2002
1409	local $self->{deny_reset} = 1; # loading can take a long time	2003	local $self->{deny_reset} = 1; # loading can take a long time
1410		2004
1411	my $path = $self->{path};	2005	my $path = $self->{path};
		2006
		2007	{
1412	my $guard = cf::lock_acquire "map_load:$path";	2008	my $guard = cf::lock_acquire "map_data:$path";
1413		2009
		2010	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	2011	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		2012
1416	$self->in_memory (cf::MAP_LOADING);	2013	$self->in_memory (cf::MAP_LOADING);
1417		2014
1418	$self->alloc;	2015	$self->alloc;
1419		2016
1420	$self->pre_load;	2017	$self->pre_load;
		2018	cf::cede_to_tick;
1421		2019
1422	$self->_load_objects ($self->{load_path}, 1)	2020	my $f = new_from_file cf::object::thawer $self->{load_path};
		2021	$f->skip_block;
		2022	$self->_load_objects ($f)
1423	or return;	2023	or return;
1424		2024
1425	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2025	$self->post_load_original
1426	if delete $self->{load_original};	2026	if delete $self->{load_original};
1427		2027
1428	if (my $uniq = $self->uniq_path) {	2028	if (my $uniq = $self->uniq_path) {
1429	utf8::encode $uniq;	2029	utf8::encode $uniq;
1430	if (aio_open $uniq, O_RDONLY, 0) {	2030	unless (aio_stat $uniq) {
		2031	if (my $f = new_from_file cf::object::thawer $uniq) {
1431	$self->clear_unique_items;	2032	$self->clear_unique_items;
1432	$self->_load_objects ($uniq, 0);	2033	$self->_load_objects ($f);
		2034	$f->resolve_delayed_derefs;
		2035	}
1433	}	2036	}
1434	}	2037	}
1435		2038
1436	Coro::cede;	2039	$f->resolve_delayed_derefs;
1437		2040
		2041	cf::cede_to_tick;
1438	# now do the right thing for maps	2042	# now do the right thing for maps
1439	$self->link_multipart_objects;	2043	$self->link_multipart_objects;
1440
1441	unless ($self->{deny_activate}) {
1442	$self->decay_objects;
1443	$self->fix_auto_apply;
1444	$self->update_buttons;
1445	Coro::cede;
1446	$self->set_darkness_map;
1447	$self->difficulty ($self->estimate_difficulty)	2044	$self->difficulty ($self->estimate_difficulty)
1448	unless $self->difficulty;	2045	unless $self->difficulty;
1449	Coro::cede;	2046	cf::cede_to_tick;
		2047
		2048	unless ($self->{deny_activate}) {
		2049	$self->decay_objects;
		2050	$self->fix_auto_apply;
		2051	$self->update_buttons;
		2052	cf::cede_to_tick;
1450	$self->activate;	2053	$self->activate;
		2054	}
		2055
		2056	$self->{last_save} = $cf::RUNTIME;
		2057	$self->last_access ($cf::RUNTIME);
		2058
		2059	$self->in_memory (cf::MAP_ACTIVE);
1451	}	2060	}
1452		2061
1453	$self->post_load;	2062	$self->post_load;
1454
1455	$self->in_memory (cf::MAP_IN_MEMORY);
1456	}	2063	}
1457		2064
1458	sub customise_for {	2065	sub customise_for {
1459	my ($self, $ob) = @_;	2066	my ($self, $ob) = @_;
1460		2067
1461	return find "~" . $ob->name . "/" . $self->{path}	2068	return find "~" . $ob->name . "/" . $self->{path}
1462	if $self->per_player;	2069	if $self->per_player;
1463		2070
		2071	# return find "?party/" . $ob->name . "/" . $self->{path}
		2072	# if $self->per_party;
		2073
1464	$self	2074	$self
1465	}	2075	}
1466		2076
1467	# find and load all maps in the 3x3 area around a map	2077	# find and load all maps in the 3x3 area around a map
1468	sub load_diag {	2078	sub load_neighbours {
1469	my ($map) = @_;	2079	my ($map) = @_;
1470		2080
1471	my @diag; # diagonal neighbours	2081	my @neigh; # diagonal neighbours
1472		2082
1473	for (0 .. 3) {	2083	for (0 .. 3) {
1474	my $neigh = $map->tile_path ($_)	2084	my $neigh = $map->tile_path ($_)
1475	or next;	2085	or next;
1476	$neigh = find $neigh, $map	2086	$neigh = find $neigh, $map
1477	or next;	2087	or next;
1478	$neigh->load;	2088	$neigh->load;
1479		2089
		2090	push @neigh,
1480	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2091	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1481	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2092	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1482	}	2093	}
1483		2094
1484	for (@diag) {	2095	for (grep defined $_->[0], @neigh) {
		2096	my ($path, $origin) = @$_;
1485	my $neigh = find @$_	2097	my $neigh = find $path, $origin
1486	or next;	2098	or next;
1487	$neigh->load;	2099	$neigh->load;
1488	}	2100	}
1489	}	2101	}
1490		2102
…		…
1495	}	2107	}
1496		2108
1497	sub do_load_sync {	2109	sub do_load_sync {
1498	my ($map) = @_;	2110	my ($map) = @_;
1499		2111
		2112	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2113	if $Coro::current == $Coro::main;
		2114
1500	cf::sync_job { $map->load };	2115	cf::sync_job { $map->load };
1501	}	2116	}
1502		2117
1503	our %MAP_PREFETCH;	2118	our %MAP_PREFETCH;
1504	our $MAP_PREFETCHER = undef;	2119	our $MAP_PREFETCHER = undef;
1505		2120
1506	sub find_async {	2121	sub find_async {
1507	my ($path, $origin) = @_;	2122	my ($path, $origin, $load) = @_;
1508		2123
1509	$path = normalise $path, $origin && $origin->{path};	2124	$path = normalise $path, $origin && $origin->{path};
1510		2125
1511	if (my $map = $cf::MAP{$path}) {	2126	if (my $map = $cf::MAP{$path}) {
1512	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2127	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1513	}	2128	}
1514		2129
1515	undef $MAP_PREFETCH{$path};	2130	$MAP_PREFETCH{$path} |= $load;
		2131
1516	$MAP_PREFETCHER ||= cf::async {	2132	$MAP_PREFETCHER ||= cf::async {
		2133	$Coro::current->{desc} = "map prefetcher";
		2134
1517	while (%MAP_PREFETCH) {	2135	while (%MAP_PREFETCH) {
1518	for my $path (keys %MAP_PREFETCH) {	2136	while (my ($k, $v) = each %MAP_PREFETCH) {
1519	my $map = find $path	2137	if (my $map = find $k) {
1520	or next;
1521	$map->load;	2138	$map->load if $v;
		2139	}
1522		2140
1523	delete $MAP_PREFETCH{$path};	2141	delete $MAP_PREFETCH{$k};
1524	}	2142	}
1525	}	2143	}
1526	undef $MAP_PREFETCHER;	2144	undef $MAP_PREFETCHER;
1527	};	2145	};
1528	$MAP_PREFETCHER->prio (6);	2146	$MAP_PREFETCHER->prio (6);
…		…
1531	}	2149	}
1532		2150
1533	sub save {	2151	sub save {
1534	my ($self) = @_;	2152	my ($self) = @_;
1535		2153
1536	my $lock = cf::lock_acquire "map_data:" . $self->path;	2154	my $lock = cf::lock_acquire "map_data:$self->{path}";
1537		2155
1538	$self->{last_save} = $cf::RUNTIME;	2156	$self->{last_save} = $cf::RUNTIME;
1539		2157
1540	return unless $self->dirty;	2158	return unless $self->dirty;
1541		2159
…		…
1547	return if $self->{deny_save};	2165	return if $self->{deny_save};
1548		2166
1549	local $self->{last_access} = $self->last_access;#d#	2167	local $self->{last_access} = $self->last_access;#d#
1550		2168
1551	cf::async {	2169	cf::async {
		2170	$Coro::current->{desc} = "map player save";
1552	$_->contr->save for $self->players;	2171	$_->contr->save for $self->players;
1553	};	2172	};
		2173
		2174	cf::get_slot 0.02;
1554		2175
1555	if ($uniq) {	2176	if ($uniq) {
1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2177	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1557	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2178	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1558	} else {	2179	} else {
…		…
1564	my ($self) = @_;	2185	my ($self) = @_;
1565		2186
1566	# save first because save cedes	2187	# save first because save cedes
1567	$self->save;	2188	$self->save;
1568		2189
1569	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1570		2191
1571	return if $self->players;	2192	return if $self->players;
1572	return if $self->in_memory != cf::MAP_IN_MEMORY;	2193	return if $self->in_memory != cf::MAP_ACTIVE;
1573	return if $self->{deny_save};	2194	return if $self->{deny_save};
1574		2195
		2196	$self->in_memory (cf::MAP_SWAPPED);
		2197
		2198	$self->deactivate;
		2199	$_->clear_links_to ($self) for values %cf::MAP;
1575	$self->clear;	2200	$self->clear;
1576	$self->in_memory (cf::MAP_SWAPPED);
1577	}	2201	}
1578		2202
1579	sub reset_at {	2203	sub reset_at {
1580	my ($self) = @_;	2204	my ($self) = @_;
1581		2205
1582	# TODO: safety, remove and allow resettable per-player maps	2206	# TODO: safety, remove and allow resettable per-player maps
1583	return 1e99 if $self->isa ("ext::map_per_player");#d#
1584	return 1e99 if $self->{deny_reset};	2207	return 1e99 if $self->{deny_reset};
1585		2208
1586	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2209	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1587	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2210	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1588		2211
…		…
1599	my ($self) = @_;	2222	my ($self) = @_;
1600		2223
1601	my $lock = cf::lock_acquire "map_data:$self->{path}";	2224	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		2225
1603	return if $self->players;	2226	return if $self->players;
1604	return if $self->isa ("ext::map_per_player");#d#
1605		2227
1606	warn "resetting map ", $self->path;#d#	2228	warn "resetting map ", $self->path;
1607		2229
1608	$self->in_memory (cf::MAP_SWAPPED);	2230	$self->in_memory (cf::MAP_SWAPPED);
1609		2231
1610	# need to save uniques path	2232	# need to save uniques path
1611	unless ($self->{deny_save}) {	2233	unless ($self->{deny_save}) {
…		…
1615	if $uniq;	2237	if $uniq;
1616	}	2238	}
1617		2239
1618	delete $cf::MAP{$self->path};	2240	delete $cf::MAP{$self->path};
1619		2241
		2242	$self->deactivate;
		2243	$_->clear_links_to ($self) for values %cf::MAP;
1620	$self->clear;	2244	$self->clear;
1621
1622	$_->clear_links_to ($self) for values %cf::MAP;
1623		2245
1624	$self->unlink_save;	2246	$self->unlink_save;
1625	$self->destroy;	2247	$self->destroy;
1626	}	2248	}
1627		2249
1628	my $nuke_counter = "aaaa";	2250	my $nuke_counter = "aaaa";
1629		2251
1630	sub nuke {	2252	sub nuke {
1631	my ($self) = @_;	2253	my ($self) = @_;
1632		2254
		2255	{
		2256	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2257
1633	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1634		2259
1635	$self->unlink_save;	2260	$self->unlink_save;
1636		2261
1637	bless $self, "cf::map";	2262	bless $self, "cf::map";
1638	delete $self->{deny_reset};	2263	delete $self->{deny_reset};
1639	$self->{deny_save} = 1;	2264	$self->{deny_save} = 1;
1640	$self->reset_timeout (1);	2265	$self->reset_timeout (1);
1641	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2266	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1642		2267
1643	$cf::MAP{$self->path} = $self;	2268	$cf::MAP{$self->path} = $self;
		2269	}
1644		2270
1645	$self->reset; # polite request, might not happen	2271	$self->reset; # polite request, might not happen
		2272	}
		2273
		2274	=item $maps = cf::map::tmp_maps
		2275
		2276	Returns an arrayref with all map paths of currently instantiated and saved
		2277	maps. May block.
		2278
		2279	=cut
		2280
		2281	sub tmp_maps() {
		2282	[
		2283	map {
		2284	utf8::decode $_;
		2285	/\.map$/
		2286	? normalise $_
		2287	: ()
		2288	} @{ aio_readdir $TMPDIR or [] }
		2289	]
		2290	}
		2291
		2292	=item $maps = cf::map::random_maps
		2293
		2294	Returns an arrayref with all map paths of currently instantiated and saved
		2295	random maps. May block.
		2296
		2297	=cut
		2298
		2299	sub random_maps() {
		2300	[
		2301	map {
		2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise "?random/$_"
		2305	: ()
		2306	} @{ aio_readdir $RANDOMDIR or [] }
		2307	]
1646	}	2308	}
1647		2309
1648	=item cf::map::unique_maps	2310	=item cf::map::unique_maps
1649		2311
1650	Returns an arrayref of paths of all shared maps that have	2312	Returns an arrayref of paths of all shared maps that have
1651	instantiated unique items. May block.	2313	instantiated unique items. May block.
1652		2314
1653	=cut	2315	=cut
1654		2316
1655	sub unique_maps() {	2317	sub unique_maps() {
1656	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2318	[
1657	or return;	2319	map {
1658
1659	my @paths;
1660
1661	for (@$files) {
1662	utf8::decode $_;	2320	utf8::decode $_;
1663	next if /\.pst$/;	2321	s/\.map$//; # TODO future compatibility hack
1664	next unless /^$PATH_SEP/o;	2322	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1665		2323	? ()
1666	push @paths, cf::map::normalise $_;	2324	: normalise $_
		2325	} @{ aio_readdir $UNIQUEDIR or [] }
1667	}	2326	]
1668
1669	\@paths
1670	}	2327	}
1671
1672	package cf;
1673		2328
1674	=back	2329	=back
1675		2330
1676	=head3 cf::object	2331	=head3 cf::object
1677		2332
…		…
1681		2336
1682	=over 4	2337	=over 4
1683		2338
1684	=item $ob->inv_recursive	2339	=item $ob->inv_recursive
1685		2340
1686	Returns the inventory of the object _and_ their inventories, recursively.	2341	Returns the inventory of the object I<and> their inventories, recursively,
		2342	but I<not> the object itself.
1687		2343
1688	=cut	2344	=cut
1689		2345
1690	sub inv_recursive_;	2346	sub inv_recursive_;
1691	sub inv_recursive_ {	2347	sub inv_recursive_ {
…		…
1694		2350
1695	sub inv_recursive {	2351	sub inv_recursive {
1696	inv_recursive_ inv $_[0]	2352	inv_recursive_ inv $_[0]
1697	}	2353	}
1698		2354
		2355	=item $ref = $ob->ref
		2356
		2357	Creates and returns a persistent reference to an object that can be stored as a string.
		2358
		2359	=item $ob = cf::object::deref ($refstring)
		2360
		2361	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2362	even if the object actually exists. May block.
		2363
		2364	=cut
		2365
		2366	sub deref {
		2367	my ($ref) = @_;
		2368
		2369	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2370	my ($uuid, $name) = ($1, $2);
		2371	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2372	or return;
		2373	$pl->ob->uuid eq $uuid
		2374	or return;
		2375
		2376	$pl->ob
		2377	} else {
		2378	warn "$ref: cannot resolve object reference\n";
		2379	undef
		2380	}
		2381	}
		2382
1699	package cf;	2383	package cf;
1700		2384
1701	=back	2385	=back
1702		2386
1703	=head3 cf::object::player	2387	=head3 cf::object::player
…		…
1709	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2393	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1710	can be C<undef>. Does the right thing when the player is currently in a	2394	can be C<undef>. Does the right thing when the player is currently in a
1711	dialogue with the given NPC character.	2395	dialogue with the given NPC character.
1712		2396
1713	=cut	2397	=cut
		2398
		2399	our $SAY_CHANNEL = {
		2400	id => "say",
		2401	title => "Map",
		2402	reply => "say ",
		2403	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2404	};
		2405
		2406	our $CHAT_CHANNEL = {
		2407	id => "chat",
		2408	title => "Chat",
		2409	reply => "chat ",
		2410	tooltip => "Player chat and shouts, global to the server.",
		2411	};
1714		2412
1715	# rough implementation of a future "reply" method that works	2413	# rough implementation of a future "reply" method that works
1716	# with dialog boxes.	2414	# with dialog boxes.
1717	#TODO: the first argument must go, split into a $npc->reply_to ( method	2415	#TODO: the first argument must go, split into a $npc->reply_to ( method
1718	sub cf::object::player::reply($$$;$) {	2416	sub cf::object::player::reply($$$;$) {
…		…
1720		2418
1721	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2419	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1722		2420
1723	if ($self->{record_replies}) {	2421	if ($self->{record_replies}) {
1724	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2422	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2423
1725	} else {	2424	} else {
		2425	my $pl = $self->contr;
		2426
		2427	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2428	my $dialog = $pl->{npc_dialog};
		2429	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2430
		2431	} else {
1726	$msg = $npc->name . " says: $msg" if $npc;	2432	$msg = $npc->name . " says: $msg" if $npc;
1727	$self->message ($msg, $flags);	2433	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2434	}
1728	}	2435	}
		2436	}
		2437
		2438	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2439
		2440	=cut
		2441
		2442	sub cf::object::send_msg {
		2443	my $pl = shift->contr
		2444	or return;
		2445	$pl->send_msg (@_);
1729	}	2446	}
1730		2447
1731	=item $player_object->may ("access")	2448	=item $player_object->may ("access")
1732		2449
1733	Returns wether the given player is authorized to access resource "access"	2450	Returns wether the given player is authorized to access resource "access"
…		…
1746		2463
1747	=item $player_object->enter_link	2464	=item $player_object->enter_link
1748		2465
1749	Freezes the player and moves him/her to a special map (C<{link}>).	2466	Freezes the player and moves him/her to a special map (C<{link}>).
1750		2467
1751	The player should be reasonably safe there for short amounts of time. You	2468	The player should be reasonably safe there for short amounts of time (e.g.
1752	I<MUST> call C<leave_link> as soon as possible, though.	2469	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2470	though, as the palyer cannot control the character while it is on the link
		2471	map.
1753		2472
1754	Will never block.	2473	Will never block.
1755		2474
1756	=item $player_object->leave_link ($map, $x, $y)	2475	=item $player_object->leave_link ($map, $x, $y)
1757		2476
…		…
1780	$self->deactivate_recursive;	2499	$self->deactivate_recursive;
1781		2500
1782	return if UNIVERSAL::isa $self->map, "ext::map_link";	2501	return if UNIVERSAL::isa $self->map, "ext::map_link";
1783		2502
1784	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2503	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1785	if $self->map;	2504	if $self->map && $self->map->{path} ne "{link}";
1786		2505
1787	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2506	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1788	}	2507	}
1789		2508
1790	sub cf::object::player::leave_link {	2509	sub cf::object::player::leave_link {
1791	my ($self, $map, $x, $y) = @_;	2510	my ($self, $map, $x, $y) = @_;
		2511
		2512	return unless $self->contr->active;
1792		2513
1793	my $link_pos = delete $self->{_link_pos};	2514	my $link_pos = delete $self->{_link_pos};
1794		2515
1795	unless ($map) {	2516	unless ($map) {
1796	# restore original map position	2517	# restore original map position
…		…
1810	# use -1 or undef as default coordinates, not 0, 0	2531	# use -1 or undef as default coordinates, not 0, 0
1811	($x, $y) = ($map->enter_x, $map->enter_y)	2532	($x, $y) = ($map->enter_x, $map->enter_y)
1812	if $x <=0 && $y <= 0;	2533	if $x <=0 && $y <= 0;
1813		2534
1814	$map->load;	2535	$map->load;
1815	$map->load_diag;	2536	$map->load_neighbours;
1816		2537
1817	return unless $self->contr->active;	2538	return unless $self->contr->active;
		2539	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1818	$self->activate_recursive;	2540	$self->activate_recursive;
1819		2541
1820	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2542	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1821	$self->enter_map ($map, $x, $y);	2543	$self->enter_map ($map, $x, $y);
1822	}	2544	}
1823		2545
1824	cf::player->attach (	2546	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1825	on_logout => sub {
1826	my ($pl) = @_;
1827		2547
1828	# abort map switching before logout	2548	Moves the player to the given map-path and coordinates by first freezing
1829	if ($pl->ob->{_link_pos}) {	2549	her, loading and preparing them map, calling the provided $check callback
1830	cf::sync_job {	2550	that has to return the map if sucecssful, and then unfreezes the player on
1831	$pl->ob->leave_link	2551	the new (success) or old (failed) map position. In either case, $done will
1832	};	2552	be called at the end of this process.
1833	}
1834	},
1835	on_login => sub {
1836	my ($pl) = @_;
1837		2553
1838	# try to abort aborted map switching on player login :)	2554	Note that $check will be called with a potentially non-loaded map, so if
1839	# should happen only on crashes	2555	it needs a loaded map it has to call C<< ->load >>.
1840	if ($pl->ob->{_link_pos}) {
1841	$pl->ob->enter_link;
1842	(async {
1843	$pl->ob->reply (undef,
1844	"There was an internal problem at your last logout, "
1845	. "the server will try to bring you to your intended destination in a second.",
1846	cf::NDI_RED);
1847	# we need this sleep as the login has a concurrent enter_exit running
1848	# and this sleep increases chances of the player not ending up in scorn
1849	Coro::Timer::sleep 1;
1850	$pl->ob->leave_link;
1851	})->prio (2);
1852	}
1853	},
1854	);
1855		2556
1856	=item $player_object->goto ($path, $x, $y)
1857
1858	=cut	2557	=cut
		2558
		2559	our $GOTOGEN;
1859		2560
1860	sub cf::object::player::goto {	2561	sub cf::object::player::goto {
1861	my ($self, $path, $x, $y) = @_;	2562	my ($self, $path, $x, $y, $check, $done) = @_;
		2563
		2564	# do generation counting so two concurrent goto's will be executed in-order
		2565	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1862		2566
1863	$self->enter_link;	2567	$self->enter_link;
1864		2568
1865	(async {	2569	(async {
		2570	$Coro::current->{desc} = "player::goto $path $x $y";
		2571
		2572	# *tag paths override both path and x|y
		2573	if ($path =~ /^\*(.*)$/) {
		2574	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2575	my $ob = $obs[rand @obs];
		2576
		2577	# see if we actually can go there
		2578	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2579	$ob = $obs[rand @obs];
		2580	} else {
		2581	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
		2583	# else put us there anyways for now #d#
		2584
		2585	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2586	} else {
		2587	($path, $x, $y) = (undef, undef, undef);
		2588	}
		2589	}
		2590
1866	my $map = eval {	2591	my $map = eval {
1867	my $map = cf::map::find $path;	2592	my $map = defined $path ? cf::map::find $path : undef;
		2593
		2594	if ($map) {
1868	$map = $map->customise_for ($self) if $map;	2595	$map = $map->customise_for ($self);
		2596	$map = $check->($map) if $check && $map;
		2597	} else {
		2598	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
		2600
1869	$map	2601	$map
		2602	};
		2603
		2604	if ($@) {
		2605	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2606	LOG llevError | logBacktrace, Carp::longmess $@;
1870	} or	2607	}
1871	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1872		2608
		2609	if ($gen == $self->{_goto_generation}) {
		2610	delete $self->{_goto_generation};
1873	$self->leave_link ($map, $x, $y);	2611	$self->leave_link ($map, $x, $y);
		2612	}
		2613
		2614	$done->() if $done;
1874	})->prio (1);	2615	})->prio (1);
1875	}	2616	}
1876		2617
1877	=item $player_object->enter_exit ($exit_object)	2618	=item $player_object->enter_exit ($exit_object)
1878		2619
…		…
1898	}	2639	}
1899		2640
1900	sub prepare_random_map {	2641	sub prepare_random_map {
1901	my ($exit) = @_;	2642	my ($exit) = @_;
1902		2643
1903	my $guard = cf::lock_acquire "exit_prepare:$exit";
1904
1905	# all this does is basically replace the /! path by	2644	# all this does is basically replace the /! path by
1906	# a new random map path (?random/...) with a seed	2645	# a new random map path (?random/...) with a seed
1907	# that depends on the exit object	2646	# that depends on the exit object
1908		2647
1909	my $rmp = parse_random_map_params $exit->msg;	2648	my $rmp = parse_random_map_params $exit->msg;
…		…
1911	if ($exit->map) {	2650	if ($exit->map) {
1912	$rmp->{region} = $exit->region->name;	2651	$rmp->{region} = $exit->region->name;
1913	$rmp->{origin_map} = $exit->map->path;	2652	$rmp->{origin_map} = $exit->map->path;
1914	$rmp->{origin_x} = $exit->x;	2653	$rmp->{origin_x} = $exit->x;
1915	$rmp->{origin_y} = $exit->y;	2654	$rmp->{origin_y} = $exit->y;
		2655
		2656	$exit->map->touch;
1916	}	2657	}
1917		2658
1918	$rmp->{random_seed} ||= $exit->random_seed;	2659	$rmp->{random_seed} ||= $exit->random_seed;
1919		2660
1920	my $data = cf::to_json $rmp;	2661	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1921	my $md5 = Digest::MD5::md5_hex $data;	2662	my $md5 = Digest::MD5::md5_hex $data;
1922	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2663	my $meta = "$RANDOMDIR/$md5.meta";
1923		2664
1924	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2665	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1925	aio_write $fh, 0, (length $data), $data, 0;	2666	aio_write $fh, 0, (length $data), $data, 0;
1926	undef $fh;	2667	undef $fh;
1927	aio_rename "$meta~", $meta;	2668	aio_rename "$meta~", $meta;
1928		2669
		2670	my $slaying = "?random/$md5";
		2671
		2672	if ($exit->valid) {
1929	$exit->slaying ("?random/$md5");	2673	$exit->slaying ("?random/$md5");
1930	$exit->msg (undef);	2674	$exit->msg (undef);
		2675	}
1931	}	2676	}
1932	}	2677	}
1933		2678
1934	sub cf::object::player::enter_exit {	2679	sub cf::object::player::enter_exit {
1935	my ($self, $exit) = @_;	2680	my ($self, $exit) = @_;
1936		2681
1937	return unless $self->type == cf::PLAYER;	2682	return unless $self->type == cf::PLAYER;
1938		2683
1939	if ($exit->slaying eq "/!") {
1940	#TODO: this should de-fi-ni-te-ly not be a sync-job
1941	cf::sync_job { prepare_random_map $exit };
1942	}
1943
1944	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1945	my $hp = $exit->stats->hp;
1946	my $sp = $exit->stats->sp;
1947
1948	$self->enter_link;	2684	$self->enter_link;
1949		2685
1950	(async {	2686	(async {
1951	$self->deactivate_recursive; # just to be sure	2687	$Coro::current->{desc} = "enter_exit";
		2688
1952	unless (eval {	2689	unless (eval {
		2690	$self->deactivate_recursive; # just to be sure
		2691
		2692	# random map handling
		2693	{
		2694	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2695
		2696	prepare_random_map $exit
		2697	if $exit->slaying eq "/!";
		2698	}
		2699
		2700	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2701	my $x = $exit->stats->hp;
		2702	my $y = $exit->stats->sp;
		2703
1953	$self->goto ($slaying, $hp, $sp);	2704	$self->goto ($map, $x, $y);
1954		2705
		2706	# if exit is damned, update players death & WoR home-position
		2707	$self->contr->savebed ($map, $x, $y)
		2708	if $exit->flag (cf::FLAG_DAMNED);
		2709
1955	1;	2710	1
1956	}) {	2711	}) {
1957	$self->message ("Something went wrong deep within the crossfire server. "	2712	$self->message ("Something went wrong deep within the deliantra server. "
1958	. "I'll try to bring you back to the map you were before. "	2713	. "I'll try to bring you back to the map you were before. "
1959	. "Please report this to the dungeon master!",	2714	. "Please report this to the dungeon master!",
1960	cf::NDI_UNIQUE | cf::NDI_RED);	2715	cf::NDI_UNIQUE | cf::NDI_RED);
1961		2716
1962	warn "ERROR in enter_exit: $@";	2717	warn "ERROR in enter_exit: $@";
1963	$self->leave_link;	2718	$self->leave_link;
1964	}	2719	}
1965	})->prio (1);	2720	})->prio (1);
…		…
1978		2733
1979	sub cf::client::send_drawinfo {	2734	sub cf::client::send_drawinfo {
1980	my ($self, $text, $flags) = @_;	2735	my ($self, $text, $flags) = @_;
1981		2736
1982	utf8::encode $text;	2737	utf8::encode $text;
1983	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2738	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1984	}	2739	}
1985		2740
		2741	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2742
		2743	Send a drawinfo or msg packet to the client, formatting the msg for the
		2744	client if neccessary. C<$type> should be a string identifying the type of
		2745	the message, with C<log> being the default. If C<$color> is negative, suppress
		2746	the message unless the client supports the msg packet.
		2747
		2748	=cut
		2749
		2750	# non-persistent channels (usually the info channel)
		2751	our %CHANNEL = (
		2752	"c/identify" => {
		2753	id => "infobox",
		2754	title => "Identify",
		2755	reply => undef,
		2756	tooltip => "Items recently identified",
		2757	},
		2758	"c/examine" => {
		2759	id => "infobox",
		2760	title => "Examine",
		2761	reply => undef,
		2762	tooltip => "Signs and other items you examined",
		2763	},
		2764	"c/book" => {
		2765	id => "infobox",
		2766	title => "Book",
		2767	reply => undef,
		2768	tooltip => "The contents of a note or book",
		2769	},
		2770	"c/lookat" => {
		2771	id => "infobox",
		2772	title => "Look",
		2773	reply => undef,
		2774	tooltip => "What you saw there",
		2775	},
		2776	"c/who" => {
		2777	id => "infobox",
		2778	title => "Players",
		2779	reply => undef,
		2780	tooltip => "Shows players who are currently online",
		2781	},
		2782	"c/body" => {
		2783	id => "infobox",
		2784	title => "Body Parts",
		2785	reply => undef,
		2786	tooltip => "Shows which body parts you posess and are available",
		2787	},
		2788	"c/statistics" => {
		2789	id => "infobox",
		2790	title => "Statistics",
		2791	reply => undef,
		2792	tooltip => "Shows your primary statistics",
		2793	},
		2794	"c/skills" => {
		2795	id => "infobox",
		2796	title => "Skills",
		2797	reply => undef,
		2798	tooltip => "Shows your experience per skill and item power",
		2799	},
		2800	"c/shopitems" => {
		2801	id => "infobox",
		2802	title => "Shop Items",
		2803	reply => undef,
		2804	tooltip => "Shows the items currently for sale in this shop",
		2805	},
		2806	"c/resistances" => {
		2807	id => "infobox",
		2808	title => "Resistances",
		2809	reply => undef,
		2810	tooltip => "Shows your resistances",
		2811	},
		2812	"c/pets" => {
		2813	id => "infobox",
		2814	title => "Pets",
		2815	reply => undef,
		2816	tooltip => "Shows information abotu your pets/a specific pet",
		2817	},
		2818	"c/perceiveself" => {
		2819	id => "infobox",
		2820	title => "Perceive Self",
		2821	reply => undef,
		2822	tooltip => "You gained detailed knowledge about yourself",
		2823	},
		2824	"c/uptime" => {
		2825	id => "infobox",
		2826	title => "Uptime",
		2827	reply => undef,
		2828	tooltip => "How long the server has been running since last restart",
		2829	},
		2830	"c/mapinfo" => {
		2831	id => "infobox",
		2832	title => "Map Info",
		2833	reply => undef,
		2834	tooltip => "Information related to the maps",
		2835	},
		2836	"c/party" => {
		2837	id => "party",
		2838	title => "Party",
		2839	reply => "gsay ",
		2840	tooltip => "Messages and chat related to your party",
		2841	},
		2842	"c/death" => {
		2843	id => "death",
		2844	title => "Death",
		2845	reply => undef,
		2846	tooltip => "Reason for and more info about your most recent death",
		2847	},
		2848	"c/say" => $SAY_CHANNEL,
		2849	"c/chat" => $CHAT_CHANNEL,
		2850	);
		2851
		2852	sub cf::client::send_msg {
		2853	my ($self, $channel, $msg, $color, @extra) = @_;
		2854
		2855	$msg = $self->pl->expand_cfpod ($msg)
		2856	unless $color & cf::NDI_VERBATIM;
		2857
		2858	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2859
		2860	# check predefined channels, for the benefit of C
		2861	if ($CHANNEL{$channel}) {
		2862	$channel = $CHANNEL{$channel};
		2863
		2864	$self->ext_msg (channel_info => $channel);
		2865	$channel = $channel->{id};
		2866
		2867	} elsif (ref $channel) {
		2868	# send meta info to client, if not yet sent
		2869	unless (exists $self->{channel}{$channel->{id}}) {
		2870	$self->{channel}{$channel->{id}} = $channel;
		2871	$self->ext_msg (channel_info => $channel);
		2872	}
		2873
		2874	$channel = $channel->{id};
		2875	}
		2876
		2877	return unless @extra || length $msg;
		2878
		2879	# default colour, mask it out
		2880	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2881	if $color & cf::NDI_DEF;
		2882
		2883	my $pkt = "msg "
		2884	. $self->{json_coder}->encode (
		2885	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2886	);
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if (8192 < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->ext_msg ($type, @msg)
		2902
		2903	Sends an ext event to the client.
		2904
		2905	=cut
		2906
		2907	sub cf::client::ext_msg($$@) {
		2908	my ($self, $type, @msg) = @_;
		2909
		2910	if ($self->extcmd == 2) {
		2911	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2912	} elsif ($self->extcmd == 1) { # TODO: remove
		2913	push @msg, msgtype => "event_$type";
		2914	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2915	}
		2916	}
		2917
		2918	=item $client->ext_reply ($msgid, @msg)
		2919
		2920	Sends an ext reply to the client.
		2921
		2922	=cut
		2923
		2924	sub cf::client::ext_reply($$@) {
		2925	my ($self, $id, @msg) = @_;
		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2929	} elsif ($self->extcmd == 1) {
		2930	#TODO: version 1, remove
		2931	unshift @msg, msgtype => "reply", msgid => $id;
		2932	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2933	}
		2934	}
1986		2935
1987	=item $success = $client->query ($flags, "text", \&cb)	2936	=item $success = $client->query ($flags, "text", \&cb)
1988		2937
1989	Queues a query to the client, calling the given callback with	2938	Queues a query to the client, calling the given callback with
1990	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2939	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1991	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2940	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1992		2941
1993	Queries can fail, so check the return code. Or don't, as queries will become	2942	Queries can fail, so check the return code. Or don't, as queries will
1994	reliable at some point in the future.	2943	become reliable at some point in the future.
1995		2944
1996	=cut	2945	=cut
1997		2946
1998	sub cf::client::query {	2947	sub cf::client::query {
1999	my ($self, $flags, $text, $cb) = @_;	2948	my ($self, $flags, $text, $cb) = @_;
…		…
2007	utf8::encode $text;	2956	utf8::encode $text;
2008	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2957	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2009		2958
2010	$self->send_packet ($self->{query_queue}[0][0])	2959	$self->send_packet ($self->{query_queue}[0][0])
2011	if @{ $self->{query_queue} } == 1;	2960	if @{ $self->{query_queue} } == 1;
		2961
		2962	1
2012	}	2963	}
2013		2964
2014	cf::client->attach (	2965	cf::client->attach (
		2966	on_connect => sub {
		2967	my ($ns) = @_;
		2968
		2969	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2970	},
2015	on_reply => sub {	2971	on_reply => sub {
2016	my ($ns, $msg) = @_;	2972	my ($ns, $msg) = @_;
2017		2973
2018	# this weird shuffling is so that direct followup queries	2974	# this weird shuffling is so that direct followup queries
2019	# get handled first	2975	# get handled first
…		…
2031	} else {	2987	} else {
2032	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2988	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2033	}	2989	}
2034	}	2990	}
2035	},	2991	},
		2992	on_exticmd => sub {
		2993	my ($ns, $buf) = @_;
		2994
		2995	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2996
		2997	if (ref $msg) {
		2998	my ($type, $reply, @payload) =
		2999	"ARRAY" eq ref $msg
		3000	? @$msg
		3001	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3002
		3003	my @reply;
		3004
		3005	if (my $cb = $EXTICMD{$type}) {
		3006	@reply = $cb->($ns, @payload);
		3007	}
		3008
		3009	$ns->ext_reply ($reply, @reply)
		3010	if $reply;
		3011
		3012	} else {
		3013	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3014	}
		3015
		3016	cf::override;
		3017	},
2036	);	3018	);
2037		3019
2038	=item $client->async (\&cb)	3020	=item $client->async (\&cb)
2039		3021
2040	Create a new coroutine, running the specified callback. The coroutine will	3022	Create a new coroutine, running the specified callback. The coroutine will
…		…
2081	our $safe = new Safe "safe";	3063	our $safe = new Safe "safe";
2082	our $safe_hole = new Safe::Hole;	3064	our $safe_hole = new Safe::Hole;
2083		3065
2084	$SIG{FPE} = 'IGNORE';	3066	$SIG{FPE} = 'IGNORE';
2085		3067
2086	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3068	$safe->permit_only (Opcode::opset qw(
		3069	:base_core :base_mem :base_orig :base_math
		3070	grepstart grepwhile mapstart mapwhile
		3071	sort time
		3072	));
2087		3073
2088	# here we export the classes and methods available to script code	3074	# here we export the classes and methods available to script code
2089		3075
2090	=pod	3076	=pod
2091		3077
2092	The following fucntions and emthods are available within a safe environment:	3078	The following functions and methods are available within a safe environment:
2093		3079
2094	cf::object contr pay_amount pay_player map	3080	cf::object
		3081	contr pay_amount pay_player map x y force_find force_add destroy
		3082	insert remove name archname title slaying race decrease split
		3083	value
		3084
2095	cf::object::player player	3085	cf::object::player
2096	cf::player peaceful	3086	player
2097	cf::map trigger	3087
		3088	cf::player
		3089	peaceful
		3090
		3091	cf::map
		3092	trigger
2098		3093
2099	=cut	3094	=cut
2100		3095
2101	for (	3096	for (
2102	["cf::object" => qw(contr pay_amount pay_player map)],	3097	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3098	insert remove inv nrof name archname title slaying race
		3099	decrease split destroy change_exp value msg lore send_msg)],
2103	["cf::object::player" => qw(player)],	3100	["cf::object::player" => qw(player)],
2104	["cf::player" => qw(peaceful)],	3101	["cf::player" => qw(peaceful send_msg)],
2105	["cf::map" => qw(trigger)],	3102	["cf::map" => qw(trigger)],
2106	) {	3103	) {
2107	no strict 'refs';	3104	no strict 'refs';
2108	my ($pkg, @funs) = @$_;	3105	my ($pkg, @funs) = @$_;
2109	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3106	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2126	my ($code, %vars) = @_;	3123	my ($code, %vars) = @_;
2127		3124
2128	my $qcode = $code;	3125	my $qcode = $code;
2129	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3126	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2130	$qcode =~ s/\n/\\n/g;	3127	$qcode =~ s/\n/\\n/g;
		3128
		3129	%vars = (_dummy => 0) unless %vars;
2131		3130
2132	local $_;	3131	local $_;
2133	local @safe::cf::_safe_eval_args = values %vars;	3132	local @safe::cf::_safe_eval_args = values %vars;
2134		3133
2135	my $eval =	3134	my $eval =
…		…
2178	=back	3177	=back
2179		3178
2180	=cut	3179	=cut
2181		3180
2182	#############################################################################	3181	#############################################################################
2183
2184	=head2 EXTENSION DATABASE SUPPORT
2185
2186	Crossfire maintains a very simple database for extension use. It can
2187	currently store anything that can be serialised using Storable, which
2188	excludes objects.
2189
2190	The parameter C<$family> should best start with the name of the extension
2191	using it, it should be unique.
2192
2193	=over 4
2194
2195	=item $value = cf::db_get $family => $key
2196
2197	Returns a single value from the database.
2198
2199	=item cf::db_put $family => $key => $value
2200
2201	Stores the given C<$value> in the family.
2202
2203	=cut
2204
2205	our $DB;
2206
2207	sub db_init {
2208	unless ($DB) {
2209	$DB = BDB::db_create $DB_ENV;
2210
2211	cf::sync_job {
2212	eval {
2213	$DB->set_flags (BDB::CHKSUM);
2214
2215	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2216	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2217	cf::cleanup "db_open(db): $!" if $!;
2218	};
2219	cf::cleanup "db_open(db): $@" if $@;
2220	};
2221
2222	my $path = cf::localdir . "/database.pst";
2223	if (stat $path) {
2224	cf::sync_job {
2225	my $pst = Storable::retrieve $path;
2226
2227	cf::db_put (board => data => $pst->{board});
2228	cf::db_put (guildrules => data => $pst->{guildrules});
2229	cf::db_put (rent => balance => $pst->{rent}{balance});
2230	BDB::db_env_txn_checkpoint $DB_ENV;
2231
2232	unlink $path;
2233	};
2234	}
2235	}
2236	}
2237
2238	sub db_get($$) {
2239	my $key = "$_[0]/$_[1]";
2240
2241	cf::sync_job {
2242	BDB::db_get $DB, undef, $key, my $data;
2243
2244	$! ? ()
2245	: Compress::LZF::sthaw $data
2246	}
2247	}
2248
2249	sub db_put($$$) {
2250	BDB::dbreq_pri 4;
2251	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2252	}
2253
2254	#############################################################################
2255	# the server's init and main functions	3182	# the server's init and main functions
2256		3183
2257	sub init_resources {	3184	sub load_facedata($) {
2258	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3185	my ($path) = @_;
		3186
		3187	# HACK to clear player env face cache, we need some signal framework
		3188	# for this (global event?)
		3189	%ext::player_env::MUSIC_FACE_CACHE = ();
		3190
		3191	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3192
		3193	warn "loading facedata from $path\n";
		3194
		3195	my $facedata;
		3196	0 < aio_load $path, $facedata
		3197	or die "$path: $!";
		3198
		3199	$facedata = Coro::Storable::thaw $facedata;
		3200
		3201	$facedata->{version} == 2
		3202	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3203
		3204	# patch in the exptable
		3205	$facedata->{resource}{"res/exp_table"} = {
		3206	type => FT_RSRC,
		3207	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3208	};
		3209	cf::cede_to_tick;
		3210
		3211	{
		3212	my $faces = $facedata->{faceinfo};
		3213
		3214	while (my ($face, $info) = each %$faces) {
		3215	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3216
		3217	cf::face::set_visibility $idx, $info->{visibility};
		3218	cf::face::set_magicmap $idx, $info->{magicmap};
		3219	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3220	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3221
		3222	cf::cede_to_tick;
		3223	}
		3224
		3225	while (my ($face, $info) = each %$faces) {
		3226	next unless $info->{smooth};
		3227
		3228	my $idx = cf::face::find $face
		3229	or next;
		3230
		3231	if (my $smooth = cf::face::find $info->{smooth}) {
		3232	cf::face::set_smooth $idx, $smooth;
		3233	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3234	} else {
		3235	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3236	}
		3237
		3238	cf::cede_to_tick;
		3239	}
		3240	}
		3241
		3242	{
		3243	my $anims = $facedata->{animinfo};
		3244
		3245	while (my ($anim, $info) = each %$anims) {
		3246	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3247	cf::cede_to_tick;
		3248	}
		3249
		3250	cf::anim::invalidate_all; # d'oh
		3251	}
		3252
		3253	{
		3254	# TODO: for gcfclient pleasure, we should give resources
		3255	# that gcfclient doesn't grok a >10000 face index.
		3256	my $res = $facedata->{resource};
		3257
		3258	while (my ($name, $info) = each %$res) {
		3259	if (defined $info->{type}) {
		3260	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3261	my $data;
		3262
		3263	if ($info->{type} & 1) {
		3264	# prepend meta info
		3265
		3266	my $meta = $enc->encode ({
		3267	name => $name,
		3268	%{ $info->{meta} || {} },
		3269	});
		3270
		3271	$data = pack "(w/a*)*", $meta, $info->{data};
		3272	} else {
		3273	$data = $info->{data};
		3274	}
		3275
		3276	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3277	cf::face::set_type $idx, $info->{type};
		3278	} else {
		3279	$RESOURCE{$name} = $info;
		3280	}
		3281
		3282	cf::cede_to_tick;
		3283	}
		3284	}
		3285
		3286	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3287
		3288	1
		3289	}
		3290
		3291	cf::global->attach (on_resource_update => sub {
		3292	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3293	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3294
		3295	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3296	my $sound = $soundconf->{compat}[$_]
		3297	or next;
		3298
		3299	my $face = cf::face::find "sound/$sound->[1]";
		3300	cf::sound::set $sound->[0] => $face;
		3301	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3302	}
		3303
		3304	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3305	my $face = cf::face::find "sound/$v";
		3306	cf::sound::set $k => $face;
		3307	}
		3308	}
		3309	});
		3310
		3311	register_exticmd fx_want => sub {
		3312	my ($ns, $want) = @_;
		3313
		3314	while (my ($k, $v) = each %$want) {
		3315	$ns->fx_want ($k, $v);
		3316	}
		3317	};
		3318
		3319	sub load_resource_file($) {
		3320	my $guard = lock_acquire "load_resource_file";
		3321
		3322	my $status = load_resource_file_ $_[0];
		3323	get_slot 0.1, 100;
		3324	cf::arch::commit_load;
		3325
		3326	$status
		3327	}
		3328
		3329	sub reload_regions {
		3330	# HACK to clear player env face cache, we need some signal framework
		3331	# for this (global event?)
		3332	%ext::player_env::MUSIC_FACE_CACHE = ();
		3333
		3334	load_resource_file "$MAPDIR/regions"
2259	or die "unable to load regions file\n";#d#	3335	or die "unable to load regions file\n";
2260	}
2261		3336
2262	sub cfg_load {	3337	for (cf::region::list) {
		3338	$_->{match} = qr/$_->{match}/
		3339	if exists $_->{match};
		3340	}
		3341	}
		3342
		3343	sub reload_facedata {
		3344	load_facedata "$DATADIR/facedata"
		3345	or die "unable to load facedata\n";
		3346	}
		3347
		3348	sub reload_archetypes {
		3349	load_resource_file "$DATADIR/archetypes"
		3350	or die "unable to load archetypes\n";
		3351	}
		3352
		3353	sub reload_treasures {
		3354	load_resource_file "$DATADIR/treasures"
		3355	or die "unable to load treasurelists\n";
		3356	}
		3357
		3358	sub reload_resources {
		3359	warn "reloading resource files...\n";
		3360
		3361	reload_facedata;
		3362	reload_archetypes;
		3363	reload_regions;
		3364	reload_treasures;
		3365
		3366	warn "finished reloading resource files\n";
		3367	}
		3368
		3369	sub reload_config {
2263	open my $fh, "<:utf8", cf::confdir . "/config"	3370	open my $fh, "<:utf8", "$CONFDIR/config"
2264	or return;	3371	or return;
2265		3372
2266	local $/;	3373	local $/;
2267	*CFG = YAML::Syck::Load <$fh>;	3374	*CFG = YAML::Load <$fh>;
2268		3375
2269	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3376	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2270		3377
2271	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3378	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2272	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3379	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2278	};	3385	};
2279	warn $@ if $@;	3386	warn $@ if $@;
2280	}	3387	}
2281	}	3388	}
2282		3389
2283	sub init {	3390	sub pidfile() {
2284	init_resources;	3391	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3392	or die "$PIDFILE: $!";
		3393	flock $fh, &Fcntl::LOCK_EX
		3394	or die "$PIDFILE: flock: $!";
		3395	$fh
		3396	}
		3397
		3398	# make sure only one server instance is running at any one time
		3399	sub atomic {
		3400	my $fh = pidfile;
		3401
		3402	my $pid = <$fh>;
		3403	kill 9, $pid if $pid > 0;
		3404
		3405	seek $fh, 0, 0;
		3406	print $fh $$;
		3407	}
		3408
		3409	sub main_loop {
		3410	warn "EV::loop starting\n";
		3411	if (1) {
		3412	EV::loop;
		3413	}
		3414	warn "EV::loop returned\n";
		3415	goto &main_loop unless $REALLY_UNLOOP;
2285	}	3416	}
2286		3417
2287	sub main {	3418	sub main {
		3419	cf::init_globals; # initialise logging
		3420
		3421	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3422	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3423	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3424	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3425
		3426	cf::init_experience;
		3427	cf::init_anim;
		3428	cf::init_attackmess;
		3429	cf::init_dynamic;
		3430
		3431	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3432
2288	# we must not ever block the main coroutine	3433	# we must not ever block the main coroutine
2289	local $Coro::idle = sub {	3434	local $Coro::idle = sub {
2290	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3435	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2291	(async {	3436	(async {
2292	Event::one_event;	3437	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3438	EV::loop EV::LOOP_ONESHOT;
2293	})->prio (Coro::PRIO_MAX);	3439	})->prio (Coro::PRIO_MAX);
2294	};	3440	};
2295		3441
2296	cfg_load;	3442	evthread_start IO::AIO::poll_fileno;
		3443
		3444	cf::sync_job {
		3445	reload_resources;
		3446	reload_config;
2297	db_init;	3447	db_init;
		3448
		3449	cf::load_settings;
		3450	cf::load_materials;
		3451	cf::init_uuid;
		3452	cf::init_signals;
		3453	cf::init_commands;
		3454	cf::init_skills;
		3455
		3456	cf::init_beforeplay;
		3457
		3458	atomic;
		3459
2298	load_extensions;	3460	load_extensions;
2299		3461
2300	$TICK_WATCHER->start;	3462	utime time, time, $RUNTIMEFILE;
2301	Event::loop;	3463
		3464	# no (long-running) fork's whatsoever before this point(!)
		3465	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3466
		3467	(pop @POST_INIT)->(0) while @POST_INIT;
		3468	};
		3469
		3470	main_loop;
2302	}	3471	}
2303		3472
2304	#############################################################################	3473	#############################################################################
2305	# initialisation and cleanup	3474	# initialisation and cleanup
2306		3475
2307	# install some emergency cleanup handlers	3476	# install some emergency cleanup handlers
2308	BEGIN {	3477	BEGIN {
		3478	our %SIGWATCHER = ();
2309	for my $signal (qw(INT HUP TERM)) {	3479	for my $signal (qw(INT HUP TERM)) {
2310	Event->signal (	3480	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2311	reentrant => 0,
2312	data => WF_AUTOCANCEL,
2313	signal => $signal,
2314	prio => 0,
2315	cb => sub {
2316	cf::cleanup "SIG$signal";	3481	cf::cleanup "SIG$signal";
2317	},
2318	);	3482	};
		3483	}
		3484	}
		3485
		3486	sub write_runtime_sync {
		3487	# first touch the runtime file to show we are still running:
		3488	# the fsync below can take a very very long time.
		3489
		3490	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3491
		3492	my $guard = cf::lock_acquire "write_runtime";
		3493
		3494	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3495	or return;
		3496
		3497	my $value = $cf::RUNTIME + 90 + 10;
		3498	# 10 is the runtime save interval, for a monotonic clock
		3499	# 60 allows for the watchdog to kill the server.
		3500
		3501	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3502	and return;
		3503
		3504	# always fsync - this file is important
		3505	aio_fsync $fh
		3506	and return;
		3507
		3508	# touch it again to show we are up-to-date
		3509	aio_utime $fh, undef, undef;
		3510
		3511	close $fh
		3512	or return;
		3513
		3514	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3515	and return;
		3516
		3517	warn "runtime file written.\n";
		3518
2319	}	3519	1
		3520	}
		3521
		3522	our $uuid_lock;
		3523	our $uuid_skip;
		3524
		3525	sub write_uuid_sync($) {
		3526	$uuid_skip ||= $_[0];
		3527
		3528	return if $uuid_lock;
		3529	local $uuid_lock = 1;
		3530
		3531	my $uuid = "$LOCALDIR/uuid";
		3532
		3533	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3534	or return;
		3535
		3536	my $value = uuid_seq uuid_cur;
		3537
		3538	unless ($value) {
		3539	warn "cowardly refusing to write zero uuid value!\n";
		3540	return;
		3541	}
		3542
		3543	my $value = uuid_str $value + $uuid_skip;
		3544	$uuid_skip = 0;
		3545
		3546	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3547	and return;
		3548
		3549	# always fsync - this file is important
		3550	aio_fsync $fh
		3551	and return;
		3552
		3553	close $fh
		3554	or return;
		3555
		3556	aio_rename "$uuid~", $uuid
		3557	and return;
		3558
		3559	warn "uuid file written ($value).\n";
		3560
		3561	1
		3562
		3563	}
		3564
		3565	sub write_uuid($$) {
		3566	my ($skip, $sync) = @_;
		3567
		3568	$sync ? write_uuid_sync $skip
		3569	: async { write_uuid_sync $skip };
2320	}	3570	}
2321		3571
2322	sub emergency_save() {	3572	sub emergency_save() {
2323	my $freeze_guard = cf::freeze_mainloop;	3573	my $freeze_guard = cf::freeze_mainloop;
2324		3574
2325	warn "enter emergency perl save\n";	3575	warn "emergency_perl_save: enter\n";
2326		3576
2327	cf::sync_job {	3577	cf::sync_job {
		3578	# this is a trade-off: we want to be very quick here, so
		3579	# save all maps without fsync, and later call a global sync
		3580	# (which in turn might be very very slow)
		3581	local $USE_FSYNC = 0;
		3582
2328	# use a peculiar iteration method to avoid tripping on perl	3583	# use a peculiar iteration method to avoid tripping on perl
2329	# refcount bugs in for. also avoids problems with players	3584	# refcount bugs in for. also avoids problems with players
2330	# and maps saved/destroyed asynchronously.	3585	# and maps saved/destroyed asynchronously.
2331	warn "begin emergency player save\n";	3586	warn "emergency_perl_save: begin player save\n";
2332	for my $login (keys %cf::PLAYER) {	3587	for my $login (keys %cf::PLAYER) {
2333	my $pl = $cf::PLAYER{$login} or next;	3588	my $pl = $cf::PLAYER{$login} or next;
2334	$pl->valid or next;	3589	$pl->valid or next;
		3590	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2335	$pl->save;	3591	$pl->save;
2336	}	3592	}
2337	warn "end emergency player save\n";	3593	warn "emergency_perl_save: end player save\n";
2338		3594
2339	warn "begin emergency map save\n";	3595	warn "emergency_perl_save: begin map save\n";
2340	for my $path (keys %cf::MAP) {	3596	for my $path (keys %cf::MAP) {
2341	my $map = $cf::MAP{$path} or next;	3597	my $map = $cf::MAP{$path} or next;
2342	$map->valid or next;	3598	$map->valid or next;
2343	$map->save;	3599	$map->save;
2344	}	3600	}
2345	warn "end emergency map save\n";	3601	warn "emergency_perl_save: end map save\n";
2346		3602
2347	warn "begin emergency database checkpoint\n";	3603	warn "emergency_perl_save: begin database checkpoint\n";
2348	BDB::db_env_txn_checkpoint $DB_ENV;	3604	BDB::db_env_txn_checkpoint $DB_ENV;
2349	warn "end emergency database checkpoint\n";	3605	warn "emergency_perl_save: end database checkpoint\n";
		3606
		3607	warn "emergency_perl_save: begin write uuid\n";
		3608	write_uuid_sync 1;
		3609	warn "emergency_perl_save: end write uuid\n";
2350	};	3610	};
2351		3611
		3612	warn "emergency_perl_save: starting sync()\n";
		3613	IO::AIO::aio_sync sub {
		3614	warn "emergency_perl_save: finished sync()\n";
		3615	};
		3616
2352	warn "leave emergency perl save\n";	3617	warn "emergency_perl_save: leave\n";
2353	}	3618	}
2354		3619
2355	sub post_cleanup {	3620	sub post_cleanup {
2356	my ($make_core) = @_;	3621	my ($make_core) = @_;
2357		3622
2358	warn Carp::longmess "post_cleanup backtrace"	3623	warn Carp::longmess "post_cleanup backtrace"
2359	if $make_core;	3624	if $make_core;
2360	}
2361		3625
		3626	my $fh = pidfile;
		3627	unlink $PIDFILE if <$fh> == $$;
		3628	}
		3629
		3630	# a safer delete_package, copied from Symbol
		3631	sub clear_package($) {
		3632	my $pkg = shift;
		3633
		3634	# expand to full symbol table name if needed
		3635	unless ($pkg =~ /^main::.*::$/) {
		3636	$pkg = "main$pkg" if $pkg =~ /^::/;
		3637	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3638	$pkg .= '::' unless $pkg =~ /::$/;
		3639	}
		3640
		3641	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3642	my $stem_symtab = *{$stem}{HASH};
		3643
		3644	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3645	or return;
		3646
		3647	# clear all symbols
		3648	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3649	for my $name (keys %$leaf_symtab) {
		3650	_gv_clear *{"$pkg$name"};
		3651	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3652	}
		3653	warn "cleared package $pkg\n";#d#
		3654	}
		3655
2362	sub reload() {	3656	sub do_reload_perl() {
2363	# can/must only be called in main	3657	# can/must only be called in main
2364	if ($Coro::current != $Coro::main) {	3658	if ($Coro::current != $Coro::main) {
2365	warn "can only reload from main coroutine";	3659	warn "can only reload from main coroutine";
2366	return;	3660	return;
2367	}	3661	}
2368		3662
		3663	return if $RELOAD++;
		3664
		3665	my $t1 = EV::time;
		3666
		3667	while ($RELOAD) {
2369	warn "reloading...";	3668	warn "reloading...";
2370		3669
2371	warn "entering sync_job";	3670	warn "entering sync_job";
2372		3671
2373	cf::sync_job {	3672	cf::sync_job {
2374	cf::write_runtime; # external watchdog should not bark	3673	cf::write_runtime_sync; # external watchdog should not bark
2375	cf::emergency_save;	3674	cf::emergency_save;
2376	cf::write_runtime; # external watchdog should not bark	3675	cf::write_runtime_sync; # external watchdog should not bark
2377		3676
2378	warn "syncing database to disk";	3677	warn "syncing database to disk";
2379	BDB::db_env_txn_checkpoint $DB_ENV;	3678	BDB::db_env_txn_checkpoint $DB_ENV;
2380		3679
2381	# if anything goes wrong in here, we should simply crash as we already saved	3680	# if anything goes wrong in here, we should simply crash as we already saved
2382		3681
2383	warn "cancelling all WF_AUTOCANCEL watchers";
2384	for (Event::all_watchers) {
2385	$_->cancel if $_->data & WF_AUTOCANCEL;
2386	}
2387
2388	warn "flushing outstanding aio requests";	3682	warn "flushing outstanding aio requests";
2389	for (;;) {
2390	BDB::flush;
2391	IO::AIO::flush;
2392	Coro::cede;
2393	last unless IO::AIO::nreqs || BDB::nreqs;	3683	while (IO::AIO::nreqs || BDB::nreqs) {
2394	warn "iterate...";	3684	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2395	}
2396
2397	warn "cancelling all extension coros";
2398	$_->cancel for values %EXT_CORO;
2399	%EXT_CORO = ();
2400
2401	warn "removing commands";
2402	%COMMAND = ();
2403
2404	warn "removing ext commands";
2405	%EXTCMD = ();
2406
2407	warn "unloading/nuking all extensions";
2408	for my $pkg (@EXTS) {
2409	warn "... unloading $pkg";
2410
2411	if (my $cb = $pkg->can ("unload")) {
2412	eval {
2413	$cb->($pkg);
2414	1
2415	} or warn "$pkg unloaded, but with errors: $@";
2416	}	3685	}
2417		3686
2418	warn "... nuking $pkg";	3687	warn "cancelling all extension coros";
2419	Symbol::delete_package $pkg;	3688	$_->cancel for values %EXT_CORO;
2420	}	3689	%EXT_CORO = ();
2421		3690
2422	warn "unloading all perl modules loaded from $LIBDIR";	3691	warn "removing commands";
2423	while (my ($k, $v) = each %INC) {	3692	%COMMAND = ();
2424	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2425		3693
		3694	warn "removing ext/exti commands";
		3695	%EXTCMD = ();
		3696	%EXTICMD = ();
		3697
		3698	warn "unloading/nuking all extensions";
		3699	for my $pkg (@EXTS) {
2426	warn "... unloading $k";	3700	warn "... unloading $pkg";
2427	delete $INC{$k};
2428		3701
2429	$k =~ s/\.pm$//;
2430	$k =~ s/\//::/g;
2431
2432	if (my $cb = $k->can ("unload_module")) {	3702	if (my $cb = $pkg->can ("unload")) {
		3703	eval {
2433	$cb->();	3704	$cb->($pkg);
		3705	1
		3706	} or warn "$pkg unloaded, but with errors: $@";
		3707	}
		3708
		3709	warn "... clearing $pkg";
		3710	clear_package $pkg;
2434	}	3711	}
2435		3712
2436	Symbol::delete_package $k;	3713	warn "unloading all perl modules loaded from $LIBDIR";
		3714	while (my ($k, $v) = each %INC) {
		3715	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3716
		3717	warn "... unloading $k";
		3718	delete $INC{$k};
		3719
		3720	$k =~ s/\.pm$//;
		3721	$k =~ s/\//::/g;
		3722
		3723	if (my $cb = $k->can ("unload_module")) {
		3724	$cb->();
		3725	}
		3726
		3727	clear_package $k;
2437	}	3728	}
2438		3729
2439	warn "getting rid of safe::, as good as possible";	3730	warn "getting rid of safe::, as good as possible";
2440	Symbol::delete_package "safe::$_"	3731	clear_package "safe::$_"
2441	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3732	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2442		3733
2443	warn "unloading cf.pm \"a bit\"";	3734	warn "unloading cf.pm \"a bit\"";
2444	delete $INC{"cf.pm"};	3735	delete $INC{"cf.pm"};
		3736	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2445		3737
2446	# don't, removes xs symbols, too,	3738	# don't, removes xs symbols, too,
2447	# and global variables created in xs	3739	# and global variables created in xs
2448	#Symbol::delete_package __PACKAGE__;	3740	#clear_package __PACKAGE__;
2449		3741
2450	warn "unload completed, starting to reload now";	3742	warn "unload completed, starting to reload now";
2451		3743
2452	warn "reloading cf.pm";	3744	warn "reloading cf.pm";
2453	require cf;	3745	require cf;
2454	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3746	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2455		3747
2456	warn "loading config and database again";	3748	warn "loading config and database again";
2457	cf::cfg_load;	3749	cf::reload_config;
2458		3750
2459	warn "loading extensions";	3751	warn "loading extensions";
2460	cf::load_extensions;	3752	cf::load_extensions;
2461		3753
		3754	if ($REATTACH_ON_RELOAD) {
2462	warn "reattaching attachments to objects/players";	3755	warn "reattaching attachments to objects/players";
2463	_global_reattach;	3756	_global_reattach; # objects, sockets
2464	warn "reattaching attachments to maps";	3757	warn "reattaching attachments to maps";
2465	reattach $_ for values %MAP;	3758	reattach $_ for values %MAP;
		3759	warn "reattaching attachments to players";
		3760	reattach $_ for values %PLAYER;
		3761	}
2466		3762
2467	warn "loading reloadable resources";	3763	warn "running post_init jobs";
2468	init_resources;	3764	(pop @POST_INIT)->(1) while @POST_INIT;
2469		3765
2470	warn "leaving sync_job";	3766	warn "leaving sync_job";
2471		3767
2472	1	3768	1
2473	} or do {	3769	} or do {
2474	warn $@;	3770	warn $@;
2475	warn "error while reloading, exiting.";	3771	cf::cleanup "error while reloading, exiting.";
2476	exit 1;	3772	};
		3773
		3774	warn "reloaded";
		3775	--$RELOAD;
		3776	}
		3777
		3778	$t1 = EV::time - $t1;
		3779	warn "reload completed in ${t1}s\n";
		3780	};
		3781
		3782	our $RELOAD_WATCHER; # used only during reload
		3783
		3784	sub reload_perl() {
		3785	# doing reload synchronously and two reloads happen back-to-back,
		3786	# coro crashes during coro_state_free->destroy here.
		3787
		3788	$RELOAD_WATCHER ||= cf::async {
		3789	Coro::AIO::aio_wait cache_extensions;
		3790
		3791	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3792	do_reload_perl;
		3793	undef $RELOAD_WATCHER;
		3794	};
2477	};	3795	};
2478		3796	}
2479	warn "reloaded";
2480	};
2481
2482	our $RELOAD_WATCHER; # used only during reload
2483		3797
2484	register_command "reload" => sub {	3798	register_command "reload" => sub {
2485	my ($who, $arg) = @_;	3799	my ($who, $arg) = @_;
2486		3800
2487	if ($who->flag (FLAG_WIZ)) {	3801	if ($who->flag (FLAG_WIZ)) {
2488	$who->message ("reloading server.");	3802	$who->message ("reloading server.");
2489		3803	async {
2490	# doing reload synchronously and two reloads happen back-to-back,	3804	$Coro::current->{desc} = "perl_reload";
2491	# coro crashes during coro_state_free->destroy here.
2492
2493	$RELOAD_WATCHER ||= Event->timer (
2494	reentrant => 0,
2495	after => 0,
2496	data => WF_AUTOCANCEL,
2497	cb => sub {
2498	reload;	3805	reload_perl;
2499	undef $RELOAD_WATCHER;
2500	},
2501	);	3806	};
2502	}	3807	}
2503	};	3808	};
2504		3809
2505	unshift @INC, $LIBDIR;	3810	unshift @INC, $LIBDIR;
2506		3811
2507	my $bug_warning = 0;	3812	my $bug_warning = 0;
2508		3813
2509	$TICK_WATCHER = Event->timer (	3814	our @WAIT_FOR_TICK;
2510	reentrant => 0,	3815	our @WAIT_FOR_TICK_BEGIN;
2511	parked => 1,	3816
2512	prio => 0,	3817	sub wait_for_tick {
2513	at => $NEXT_TICK || $TICK,	3818	return if tick_inhibit || $Coro::current == $Coro::main;
2514	data => WF_AUTOCANCEL,	3819
2515	cb => sub {	3820	my $signal = new Coro::Signal;
		3821	push @WAIT_FOR_TICK, $signal;
		3822	$signal->wait;
		3823	}
		3824
		3825	sub wait_for_tick_begin {
		3826	return if tick_inhibit || $Coro::current == $Coro::main;
		3827
		3828	my $signal = new Coro::Signal;
		3829	push @WAIT_FOR_TICK_BEGIN, $signal;
		3830	$signal->wait;
		3831	}
		3832
		3833	sub tick {
2516	if ($Coro::current != $Coro::main) {	3834	if ($Coro::current != $Coro::main) {
2517	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3835	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2518	unless ++$bug_warning > 10;	3836	unless ++$bug_warning > 10;
2519	return;	3837	return;
2520	}	3838	}
2521		3839
2522	$NOW = Event::time;
2523
2524	cf::server_tick; # one server iteration	3840	cf::server_tick; # one server iteration
2525	$RUNTIME += $TICK;
2526	$NEXT_TICK += $TICK;
2527		3841
2528	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3842	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2529	$NEXT_RUNTIME_WRITE = $NOW + 10;	3843	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2530	Coro::async_pool {	3844	Coro::async_pool {
		3845	$Coro::current->{desc} = "runtime saver";
2531	write_runtime	3846	write_runtime_sync
2532	or warn "ERROR: unable to write runtime file: $!";	3847	or warn "ERROR: unable to write runtime file: $!";
2533	};
2534	}	3848	};
2535
2536	$WAIT_FOR_TICK->broadcast;
2537	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2538
2539	# my $AFTER = Event::time;
2540	# warn $AFTER - $NOW;#d#
2541
2542	# if we are delayed by four ticks or more, skip them all
2543	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2544
2545	$TICK_WATCHER->at ($NEXT_TICK);
2546	$TICK_WATCHER->start;
2547	},	3849	}
2548	);	3850
		3851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3852	$sig->send;
		3853	}
		3854	while (my $sig = shift @WAIT_FOR_TICK) {
		3855	$sig->send;
		3856	}
		3857
		3858	$LOAD = ($NOW - $TICK_START) / $TICK;
		3859	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3860
		3861	if (0) {
		3862	if ($NEXT_TICK) {
		3863	my $jitter = $TICK_START - $NEXT_TICK;
		3864	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3865	warn "jitter $JITTER\n";#d#
		3866	}
		3867	}
		3868	}
2549		3869
2550	{	3870	{
2551	BDB::max_poll_time $TICK * 0.1;	3871	# configure BDB
2552	$BDB_POLL_WATCHER = Event->io (	3872
2553	reentrant => 0,
2554	fd => BDB::poll_fileno,
2555	poll => 'r',
2556	prio => 0,
2557	data => WF_AUTOCANCEL,
2558	cb => \&BDB::poll_cb,
2559	);
2560	BDB::min_parallel 8;	3873	BDB::min_parallel 8;
2561		3874	BDB::max_poll_reqs $TICK * 0.1;
2562	BDB::set_sync_prepare {	3875	$AnyEvent::BDB::WATCHER->priority (1);
2563	my $status;
2564	my $current = $Coro::current;
2565	(
2566	sub {
2567	$status = $!;
2568	$current->ready; undef $current;
2569	},
2570	sub {
2571	Coro::schedule while defined $current;
2572	$! = $status;
2573	},
2574	)
2575	};
2576		3876
2577	unless ($DB_ENV) {	3877	unless ($DB_ENV) {
2578	$DB_ENV = BDB::db_env_create;	3878	$DB_ENV = BDB::db_env_create;
		3879	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3880	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3881	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3882	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3883	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2579		3884
2580	cf::sync_job {	3885	cf::sync_job {
2581	eval {	3886	eval {
2582	BDB::db_env_open	3887	BDB::db_env_open
2583	$DB_ENV,	3888	$DB_ENV,
2584	$BDB_ENV_DIR,	3889	$BDBDIR,
2585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3890	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3891	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2587	0666;	3892	0666;
2588		3893
2589	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3894	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2590
2591	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2592	$DB_ENV->set_lk_detect;
2593	};	3895	};
2594		3896
2595	cf::cleanup "db_env_open(db): $@" if $@;	3897	cf::cleanup "db_env_open(db): $@" if $@;
2596	};	3898	};
2597	}	3899	}
		3900
		3901	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3902	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3903	};
		3904	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3905	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3906	};
		3907	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3908	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3909	};
2598	}	3910	}
2599		3911
2600	{	3912	{
		3913	# configure IO::AIO
		3914
2601	IO::AIO::min_parallel 8;	3915	IO::AIO::min_parallel 8;
2602
2603	undef $Coro::AIO::WATCHER;
2604	IO::AIO::max_poll_time $TICK * 0.1;	3916	IO::AIO::max_poll_time $TICK * 0.1;
2605	$AIO_POLL_WATCHER = Event->io (	3917	undef $AnyEvent::AIO::WATCHER;
2606	reentrant => 0,
2607	data => WF_AUTOCANCEL,
2608	fd => IO::AIO::poll_fileno,
2609	poll => 'r',
2610	prio => 6,
2611	cb => \&IO::AIO::poll_cb,
2612	);
2613	}	3918	}
		3919
		3920	my $_log_backtrace;
		3921
		3922	sub _log_backtrace {
		3923	my ($msg, @addr) = @_;
		3924
		3925	$msg =~ s/\n//;
		3926
		3927	# limit the # of concurrent backtraces
		3928	if ($_log_backtrace < 2) {
		3929	++$_log_backtrace;
		3930	my $perl_bt = Carp::longmess $msg;
		3931	async {
		3932	$Coro::current->{desc} = "abt $msg";
		3933
		3934	my @bt = fork_call {
		3935	@addr = map { sprintf "%x", $_ } @addr;
		3936	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3937	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3938	or die "addr2line: $!";
		3939
		3940	my @funcs;
		3941	my @res = <$fh>;
		3942	chomp for @res;
		3943	while (@res) {
		3944	my ($func, $line) = splice @res, 0, 2, ();
		3945	push @funcs, "[$func] $line";
		3946	}
		3947
		3948	@funcs
		3949	};
		3950
		3951	LOG llevInfo, "[ABT] $perl_bt\n";
		3952	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3953	LOG llevInfo, "[ABT] $_\n" for @bt;
		3954	--$_log_backtrace;
		3955	};
		3956	} else {
		3957	LOG llevInfo, "[ABT] $msg\n";
		3958	LOG llevInfo, "[ABT] [suppressed]\n";
		3959	}
		3960	}
		3961
		3962	# load additional modules
		3963	require "cf/$_.pm" for @EXTRA_MODULES;
2614		3964
2615	END { cf::emergency_save }	3965	END { cf::emergency_save }
2616		3966
2617	1	3967	1
2618		3968

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