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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.207 by root, Sun Feb 11 22:42:09 2007 UTC vs.
Revision 1.477 by root, Wed Sep 2 22:52:36 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;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
27		63
28	use Event; $Event::Eval = 1; # no idea why this is required, but it is	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";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		76
		77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
29		79
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31
32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
33	$YAML::Syck::ImplicitUnicode = 1;
34
35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
36		81
37	our %COMMAND = ();	82	our %COMMAND = ();
38	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
39		84
40	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
44		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
45	our @EVENT;	92	our @EVENT;
46	our $LIBDIR = datadir . "/ext";
47		93
48	our $TICK = MAX_TIME * 1e-6;	94	our $CONFDIR = confdir;
49	our $TICK_WATCHER;	95	our $DATADIR = datadir;
50	our $AIO_POLL_WATCHER;	96	our $LIBDIR = "$DATADIR/ext";
51	our $WRITE_RUNTIME_WATCHER;	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(!)
		111	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	112	our $NEXT_TICK;
53	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	113	our $USE_FSYNC = 1; # use fsync to write maps - default on
55		114
		115	our $BDB_DEADLOCK_WATCHER;
		116	our $BDB_CHECKPOINT_WATCHER;
56	our $BDB_POLL_WATCHER;	117	our $BDB_TRICKLE_WATCHER;
57	our $DB_ENV;	118	our $DB_ENV;
		119
		120	our @EXTRA_MODULES = qw(pod mapscript);
58		121
59	our %CFG;	122	our %CFG;
60		123
61	our $UPTIME; $UPTIME ||= time;	124	our $UPTIME; $UPTIME ||= time;
62	our $RUNTIME;	125	our $RUNTIME;
		126	our $NOW;
63		127
64	our %PLAYER; # all users	128	our (%PLAYER, %PLAYER_LOADING); # all users
65	our %MAP; # all maps	129	our (%MAP, %MAP_LOADING ); # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	130	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		131
73	# 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 ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	133	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		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 $REALLY_UNLOOP; # never set to true, please :)
		144
76	binmode STDOUT;	145	binmode STDOUT;
77	binmode STDERR;	146	binmode STDERR;
78		147
79	# read virtual server time, if available	148	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	149	unless ($RUNTIME || !-e $RUNTIMEFILE) {
81	open my $fh, "<", cf::localdir . "/runtime"	150	open my $fh, "<", $RUNTIMEFILE
82	or die "unable to read runtime file: $!";	151	or die "unable to read $RUNTIMEFILE file: $!";
83	$RUNTIME = <$fh> + 0.;	152	$RUNTIME = <$fh> + 0.;
84	}	153	}
85		154
86	mkdir cf::localdir;	155	eval "sub TICK() { $TICK } 1" or die;
87	mkdir cf::localdir . "/" . cf::playerdir;	156
88	mkdir cf::localdir . "/" . cf::tmpdir;	157	mkdir $_
89	mkdir cf::localdir . "/" . cf::uniquedir;	158	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		159
93	our $EMERGENCY_POSITION;	160	our $EMERGENCY_POSITION;
94		161
95	sub cf::map::normalise;	162	sub cf::map::normalise;
96		163
…		…
107	=item $cf::RUNTIME	174	=item $cf::RUNTIME
108		175
109	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
110	every server tick.	177	every server tick.
111		178
112	=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
113		182
114	The perl library directory, where extensions and cf-specific modules can	183	Various directories - "/etc", read-only install directory, perl-library
115	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.
116		187
117	=item $cf::NOW	188	=item $cf::NOW
118		189
119	The time of the last (current) server tick.	190	The time of the last (current) server tick.
120		191
121	=item $cf::TICK	192	=item $cf::TICK
122		193
123	The interval between server ticks, in seconds.	194	The interval between server ticks, in seconds.
124		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
125	=item %cf::CFG	206	=item %cf::CFG
126		207
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	208	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
128	from wherever your confdir points to.	209	from wherever your confdir points to.
129		210
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	211	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		212
132	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
133	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
134	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.
135	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.
136		222
137	=back	223	=back
138		224
139	=cut	225	=cut
140		226
141	BEGIN {	227	$Coro::State::WARNHOOK = sub {
142	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	228	my $msg = join "", @_;
144	utf8::encode $msg;
145		229
146	$msg .= "\n"	230	$msg .= "\n"
147	unless $msg =~ /\n$/;	231	unless $msg =~ /\n$/;
148		232
		233	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		234
149	LOG llevError, $msg;	235	LOG llevError, $msg;
150	};	236	};
151	}	237
		238	$Coro::State::DIEHOOK = sub {
		239	return unless $^S eq 0; # "eq", not "=="
		240
		241	warn Carp::longmess $_[0];
		242
		243	if ($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	Coro::terminate
		250	};
152		251
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	252	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	253	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	254	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	255	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	256	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		257	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
158	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	258	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
159		259
160	# we bless all objects into (empty) derived classes to force a method lookup	260	# we bless all objects into (empty) derived classes to force a method lookup
161	# within the Safe compartment.	261	# within the Safe compartment.
162	for my $pkg (qw(	262	for my $pkg (qw(
163	cf::global cf::attachable	263	cf::global cf::attachable
164	cf::object cf::object::player	264	cf::object cf::object::player
165	cf::client cf::player	265	cf::client cf::player
166	cf::arch cf::living	266	cf::arch cf::living
		267	cf::map cf::mapspace
167	cf::map cf::party cf::region	268	cf::party cf::region
168	)) {	269	)) {
169	no strict 'refs';
170	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	270	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
171	}	271	}
172		272
173	$Event::DIED = sub {	273	$EV::DIED = sub {
174	warn "error in event callback: @_";	274	warn "error in event callback: @_";
175	};	275	};
		276
		277	#############################################################################
176		278
177	=head2 UTILITY FUNCTIONS	279	=head2 UTILITY FUNCTIONS
178		280
179	=over 4	281	=over 4
180		282
…		…
199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	301	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
200	$d	302	$d
201	} || "[unable to dump $_[0]: '$@']";	303	} || "[unable to dump $_[0]: '$@']";
202	}	304	}
203		305
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	306	=item $ref = cf::decode_json $json
207		307
208	Converts a JSON string into the corresponding perl data structure.	308	Converts a JSON string into the corresponding perl data structure.
209		309
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	310	=item $json = cf::encode_json $ref
218		311
219	Converts a perl data structure into its JSON representation.	312	Converts a perl data structure into its JSON representation.
220		313
221	=cut	314	=cut
222		315
223	sub to_json($) {	316	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	317
225	JSON::Syck::Dump $_[0]	318	sub encode_json($) { $json_coder->encode ($_[0]) }
		319	sub decode_json($) { $json_coder->decode ($_[0]) }
		320
		321	=item cf::post_init { BLOCK }
		322
		323	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		324	but I<before> the server starts ticking again.
		325
		326	The cdoeblock will have a single boolean argument to indicate whether this
		327	is a reload or not.
		328
		329	=cut
		330
		331	sub post_init(&) {
		332	push @POST_INIT, shift;
226	}	333	}
227		334
228	=item cf::lock_wait $string	335	=item cf::lock_wait $string
229		336
230	Wait until the given lock is available. See cf::lock_acquire.	337	Wait until the given lock is available. See cf::lock_acquire.
231		338
232	=item my $lock = cf::lock_acquire $string	339	=item my $lock = cf::lock_acquire $string
233		340
234	Wait until the given lock is available and then acquires it and returns	341	Wait until the given lock is available and then acquires it and returns
235	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	342	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
236	for example when the coroutine gets canceled), the lock is automatically	343	for example when the coroutine gets canceled), the lock is automatically
237	returned.	344	returned.
238		345
		346	Locks are *not* recursive, locking from the same coro twice results in a
		347	deadlocked coro.
		348
239	Lock names should begin with a unique identifier (for example, cf::map::find	349	Lock names should begin with a unique identifier (for example, cf::map::find
240	uses map_find and cf::map::load uses map_load).	350	uses map_find and cf::map::load uses map_load).
241		351
242	=cut	352	=item $locked = cf::lock_active $string
243		353
244	our %LOCK;	354	Return true if the lock is currently active, i.e. somebody has locked it.
		355
		356	=cut
		357
		358	our $LOCKS = new Coro::SemaphoreSet;
245		359
246	sub lock_wait($) {	360	sub lock_wait($) {
247	my ($key) = @_;	361	$LOCKS->wait ($_[0]);
248
249	# wait for lock, if any
250	while ($LOCK{$key}) {
251	push @{ $LOCK{$key} }, $Coro::current;
252	Coro::schedule;
253	}
254	}	362	}
255		363
256	sub lock_acquire($) {	364	sub lock_acquire($) {
257	my ($key) = @_;	365	$LOCKS->guard ($_[0])
		366	}
258		367
259	# wait, to be sure we are not locked	368	sub lock_active($) {
260	lock_wait $key;	369	$LOCKS->count ($_[0]) < 1
261
262	$LOCK{$key} = [];
263
264	Coro::guard {
265	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };
267	}
268	}	370	}
269		371
270	sub freeze_mainloop {	372	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	373	tick_inhibit_inc;
272		374
273	my $guard = Coro::guard {	375	&Guard::guard (\&tick_inhibit_dec);
274	$TICK_WATCHER->start;	376	}
275	$WRITE_RUNTIME_WATCHER->start;	377
		378	=item cf::periodic $interval, $cb
		379
		380	Like EV::periodic, but randomly selects a starting point so that the actions
		381	get spread over timer.
		382
		383	=cut
		384
		385	sub periodic($$) {
		386	my ($interval, $cb) = @_;
		387
		388	my $start = rand List::Util::min 180, $interval;
		389
		390	EV::periodic $start, $interval, 0, $cb
		391	}
		392
		393	=item cf::get_slot $time[, $priority[, $name]]
		394
		395	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		396	This call blocks and returns only when you have at least C<$time> seconds
		397	of cpu time till the next tick. The slot is only valid till the next cede.
		398
		399	The optional C<$name> can be used to identify the job to run. It might be
		400	used for statistical purposes and should identify the same time-class.
		401
		402	Useful for short background jobs.
		403
		404	=cut
		405
		406	our @SLOT_QUEUE;
		407	our $SLOT_QUEUE;
		408
		409	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		410	$SLOT_QUEUE = Coro::async {
		411	$Coro::current->desc ("timeslot manager");
		412
		413	my $signal = new Coro::Signal;
		414
		415	while () {
		416	next_job:
		417	my $avail = cf::till_tick;
		418	if ($avail > 0.01) {
		419	for (0 .. $#SLOT_QUEUE) {
		420	if ($SLOT_QUEUE[$_][0] < $avail) {
		421	my $job = splice @SLOT_QUEUE, $_, 1, ();
		422	$job->[2]->send;
		423	Coro::cede;
		424	goto next_job;
		425	}
		426	}
		427	}
		428
		429	if (@SLOT_QUEUE) {
		430	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		431	push @cf::WAIT_FOR_TICK, $signal;
		432	$signal->wait;
		433	} else {
		434	Coro::schedule;
		435	}
276	};	436	}
277	$WRITE_RUNTIME_WATCHER->stop;	437	};
278	$TICK_WATCHER->stop;	438
279	$guard	439	sub get_slot($;$$) {
		440	return if tick_inhibit || $Coro::current == $Coro::main;
		441
		442	my ($time, $pri, $name) = @_;
		443
		444	$time = $TICK * .6 if $time > $TICK * .6;
		445	my $sig = new Coro::Signal;
		446
		447	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		448	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		449	$SLOT_QUEUE->ready;
		450	$sig->wait;
280	}	451	}
281		452
282	=item cf::async { BLOCK }	453	=item cf::async { BLOCK }
283		454
284	Currently the same as Coro::async_pool, meaning you cannot use	455	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		460
290	BEGIN { *async = \&Coro::async_pool }	461	BEGIN { *async = \&Coro::async_pool }
291		462
292	=item cf::sync_job { BLOCK }	463	=item cf::sync_job { BLOCK }
293		464
294	The design of crossfire+ requires that the main coro ($Coro::main) is	465	The design of Deliantra requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	466	is always able to handle events or runnable, as Deliantra is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	467	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		468	acceptable.
297		469
298	If it must be done, put the blocking parts into C<sync_job>. This will run	470	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	471	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	472	server will be frozen during this time, so the block should either finish
301	fast or be very important.	473	fast or be very important.
…		…
304		476
305	sub sync_job(&) {	477	sub sync_job(&) {
306	my ($job) = @_;	478	my ($job) = @_;
307		479
308	if ($Coro::current == $Coro::main) {	480	if ($Coro::current == $Coro::main) {
		481	my $time = EV::time;
		482
309	# this is the main coro, too bad, we have to block	483	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	484	# till the operation succeeds, freezing the server :/
311		485
312	# TODO: use suspend/resume instead	486	LOG llevError, Carp::longmess "sync job";#d#
313	# (but this is cancel-safe)	487
314	my $freeze_guard = freeze_mainloop;	488	my $freeze_guard = freeze_mainloop;
315		489
316	my $busy = 1;	490	my $busy = 1;
317	my @res;	491	my @res;
318		492
319	(async {	493	(async {
		494	$Coro::current->desc ("sync job coro");
320	@res = eval { $job->() };	495	@res = eval { $job->() };
321	warn $@ if $@;	496	warn $@ if $@;
322	undef $busy;	497	undef $busy;
323	})->prio (Coro::PRIO_MAX);	498	})->prio (Coro::PRIO_MAX);
324		499
325	while ($busy) {	500	while ($busy) {
326	Coro::cede or Event::one_event;	501	if (Coro::nready) {
		502	Coro::cede_notself;
		503	} else {
		504	EV::loop EV::LOOP_ONESHOT;
327	}	505	}
		506	}
		507
		508	my $time = EV::time - $time;
		509
		510	$TICK_START += $time; # do not account sync jobs to server load
328		511
329	wantarray ? @res : $res[0]	512	wantarray ? @res : $res[0]
330	} else {	513	} else {
331	# we are in another coroutine, how wonderful, everything just works	514	# we are in another coroutine, how wonderful, everything just works
332		515
…		…
352	$EXT_CORO{$coro+0} = $coro;	535	$EXT_CORO{$coro+0} = $coro;
353		536
354	$coro	537	$coro
355	}	538	}
356		539
357	sub write_runtime {	540	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		541
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	542	Executes the given code block with the given arguments in a seperate
361	or return;	543	process, returning the results. Everything must be serialisable with
		544	Coro::Storable. May, of course, block. Note that the executed sub may
		545	never block itself or use any form of event handling.
362		546
363	my $value = $cf::RUNTIME + 90 + 10;	547	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		548
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	549	sub fork_call(&@) {
368	and return;	550	my ($cb, @args) = @_;
369		551
370	# always fsync - this file is important	552	# we seemingly have to make a local copy of the whole thing,
371	aio_fsync $fh	553	# otherwise perl prematurely frees the stuff :/
372	and return;	554	# TODO: investigate and fix (likely this will be rather laborious)
373		555
374	close $fh	556	my @res = Coro::Util::fork_eval {
375	or return;	557	reset_signals;
		558	&$cb
		559	}, @args;
376		560
377	aio_rename "$runtime~", $runtime	561	wantarray ? @res : $res[-1]
378	and return;	562	}
379		563
		564	=item $coin = coin_from_name $name
		565
		566	=cut
		567
		568	our %coin_alias = (
		569	"silver" => "silvercoin",
		570	"silvercoin" => "silvercoin",
		571	"silvercoins" => "silvercoin",
		572	"gold" => "goldcoin",
		573	"goldcoin" => "goldcoin",
		574	"goldcoins" => "goldcoin",
		575	"platinum" => "platinacoin",
		576	"platinumcoin" => "platinacoin",
		577	"platinumcoins" => "platinacoin",
		578	"platina" => "platinacoin",
		579	"platinacoin" => "platinacoin",
		580	"platinacoins" => "platinacoin",
		581	"royalty" => "royalty",
		582	"royalties" => "royalty",
		583	);
		584
		585	sub coin_from_name($) {
		586	$coin_alias{$_[0]}
		587	? cf::arch::find $coin_alias{$_[0]}
		588	: undef
		589	}
		590
		591	=item $value = cf::db_get $family => $key
		592
		593	Returns a single value from the environment database.
		594
		595	=item cf::db_put $family => $key => $value
		596
		597	Stores the given C<$value> in the family. It can currently store binary
		598	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		599
		600	=item $db = cf::db_table "name"
		601
		602	Create and/or open a new database table. The string must not be "db" and must be unique
		603	within each server.
		604
		605	=cut
		606
		607	sub db_table($) {
		608	my ($name) = @_;
		609	my $db = BDB::db_create $DB_ENV;
		610
		611	eval {
		612	$db->set_flags (BDB::CHKSUM);
		613
		614	utf8::encode $name;
		615	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		616	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		617	cf::cleanup "db_open(db): $!" if $!;
		618	};
		619	cf::cleanup "db_open(db): $@" if $@;
		620
		621	$db
		622	}
		623
		624	our $DB;
		625
		626	sub db_init {
		627	cf::sync_job {
		628	$DB ||= db_table "db";
		629	};
		630	}
		631
		632	sub db_get($$) {
		633	my $key = "$_[0]/$_[1]";
		634
		635	cf::sync_job {
		636	BDB::db_get $DB, undef, $key, my $data;
		637
		638	$! ? ()
		639	: $data
380	1	640	}
		641	}
		642
		643	sub db_put($$$) {
		644	BDB::dbreq_pri 4;
		645	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		646	}
		647
		648	=item cf::cache $id => [$paths...], $processversion => $process
		649
		650	Generic caching function that returns the value of the resource $id,
		651	caching and regenerating as required.
		652
		653	This function can block.
		654
		655	=cut
		656
		657	sub cache {
		658	my ($id, $src, $processversion, $process) = @_;
		659
		660	my $meta =
		661	join "\x00",
		662	$processversion,
		663	map {
		664	aio_stat $_
		665	and Carp::croak "$_: $!";
		666
		667	($_, (stat _)[7,9])
		668	} @$src;
		669
		670	my $dbmeta = db_get cache => "$id/meta";
		671	if ($dbmeta ne $meta) {
		672	# changed, we may need to process
		673
		674	my @data;
		675	my $md5;
		676
		677	for (0 .. $#$src) {
		678	0 <= aio_load $src->[$_], $data[$_]
		679	or Carp::croak "$src->[$_]: $!";
		680	}
		681
		682	# if processing is expensive, check
		683	# checksum first
		684	if (1) {
		685	$md5 =
		686	join "\x00",
		687	$processversion,
		688	map {
		689	cf::cede_to_tick;
		690	($src->[$_], Digest::MD5::md5_hex $data[$_])
		691	} 0.. $#$src;
		692
		693
		694	my $dbmd5 = db_get cache => "$id/md5";
		695	if ($dbmd5 eq $md5) {
		696	db_put cache => "$id/meta", $meta;
		697
		698	return db_get cache => "$id/data";
		699	}
		700	}
		701
		702	my $t1 = Time::HiRes::time;
		703	my $data = $process->(\@data);
		704	my $t2 = Time::HiRes::time;
		705
		706	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		707
		708	db_put cache => "$id/data", $data;
		709	db_put cache => "$id/md5" , $md5;
		710	db_put cache => "$id/meta", $meta;
		711
		712	return $data;
		713	}
		714
		715	db_get cache => "$id/data"
		716	}
		717
		718	=item cf::datalog type => key => value, ...
		719
		720	Log a datalog packet of the given type with the given key-value pairs.
		721
		722	=cut
		723
		724	sub datalog($@) {
		725	my ($type, %kv) = @_;
		726	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	727	}
382		728
383	=back	729	=back
384		730
385	=cut	731	=cut
386		732
387	#############################################################################	733	#############################################################################
388		734
389	=head2 ATTACHABLE OBJECTS	735	=head2 ATTACHABLE OBJECTS
390		736
391	Many objects in crossfire are so-called attachable objects. That means you can	737	Many objects in deliantra are so-called attachable objects. That means you can
392	attach callbacks/event handlers (a collection of which is called an "attachment")	738	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	739	to it. All such attachable objects support the following methods.
394		740
395	In the following description, CLASS can be any of C<global>, C<object>	741	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	742	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	743	Deliantra).
398		744
399	=over 4	745	=over 4
400		746
401	=item $attachable->attach ($attachment, key => $value...)	747	=item $attachable->attach ($attachment, key => $value...)
402		748
…		…
446	=item cf::CLASS::attachment $name, ...	792	=item cf::CLASS::attachment $name, ...
447		793
448	Register an attachment by C<$name> through which attachable objects of the	794	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	795	given CLASS can refer to this attachment.
450		796
451	Some classes such as crossfire maps and objects can specify attachments	797	Some classes such as deliantra maps and objects can specify attachments
452	that are attached at load/instantiate time, thus the need for a name.	798	that are attached at load/instantiate time, thus the need for a name.
453		799
454	These calls expect any number of the following handler/hook descriptions:	800	These calls expect any number of the following handler/hook descriptions:
455		801
456	=over 4	802	=over 4
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	911	$registry = $CB_TYPE[$object_type] ||= [];
566		912
567	} elsif ($type eq "subtype") {	913	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	914	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	915	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	916	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		917
572	} elsif ($type eq "package") {	918	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	919	my $pkg = shift @arg;
574		920
575	while (my ($name, $id) = each %cb_id) {	921	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	950	_attach $registry, $klass, @attach;
605	}	951	}
606		952
607	$obj->{$name} = \%arg;	953	$obj->{$name} = \%arg;
608	} else {	954	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	955	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	956	}
611		957
612	$obj->{_attachment}{$name} = undef;	958	$obj->{_attachment}{$name} = undef;
613	}	959	}
614		960
…		…
616	if (ref $_[0]) {	962	if (ref $_[0]) {
617	_object_attach @_;	963	_object_attach @_;
618	} else {	964	} else {
619	_attach shift->_attach_registry, @_;	965	_attach shift->_attach_registry, @_;
620	}	966	}
		967	_recalc_want;
621	};	968	};
622		969
623	# all those should be optimised	970	# all those should be optimised
624	sub cf::attachable::detach {	971	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	972	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	975	delete $obj->{_attachment}{$name};
629	reattach ($obj);	976	reattach ($obj);
630	} else {	977	} else {
631	Carp::croak "cannot, currently, detach class attachments";	978	Carp::croak "cannot, currently, detach class attachments";
632	}	979	}
		980	_recalc_want;
633	};	981	};
634		982
635	sub cf::attachable::attached {	983	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	984	my ($obj, $name) = @_;
637		985
…		…
652	";	1000	";
653	die if $@;	1001	die if $@;
654	}	1002	}
655		1003
656	our $override;	1004	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1005	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1006
659	sub override {	1007	sub override {
660	$override = 1;	1008	$override = 1;
661	@invoke_results = ();	1009	@INVOKE_RESULTS = (@_);
662	}	1010	}
663		1011
664	sub do_invoke {	1012	sub do_invoke {
665	my $event = shift;	1013	my $event = shift;
666	my $callbacks = shift;	1014	my $callbacks = shift;
667		1015
668	@invoke_results = ();	1016	@INVOKE_RESULTS = ();
669		1017
670	local $override;	1018	local $override;
671		1019
672	for (@$callbacks) {	1020	for (@$callbacks) {
673	eval { &{$_->[1]} };	1021	eval { &{$_->[1]} };
…		…
682	}	1030	}
683		1031
684	0	1032	0
685	}	1033	}
686		1034
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1035	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1036
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1037	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1038
691	Generate an object-specific event with the given arguments.	1039	Generate an object-specific event with the given arguments.
692		1040
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1041	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1042	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1043	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1044
697	=back	1045	=back
698		1046
699	=cut	1047	=cut
700		1048
701	#############################################################################	1049	#############################################################################
702	# object support	1050	# object support
		1051
		1052	sub _object_equal($$);
		1053	sub _object_equal($$) {
		1054	my ($a, $b) = @_;
		1055
		1056	return 0 unless (ref $a) eq (ref $b);
		1057
		1058	if ("HASH" eq ref $a) {
		1059	my @ka = keys %$a;
		1060	my @kb = keys %$b;
		1061
		1062	return 0 if @ka != @kb;
		1063
		1064	for (0 .. $#ka) {
		1065	return 0 unless $ka[$_] eq $kb[$_];
		1066	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1067	}
		1068
		1069	} elsif ("ARRAY" eq ref $a) {
		1070
		1071	return 0 if @$a != @$b;
		1072
		1073	for (0 .. $#$a) {
		1074	return 0 unless _object_equal $a->[$_], $b->[$_];
		1075	}
		1076
		1077	} elsif ($a ne $b) {
		1078	return 0;
		1079	}
		1080
		1081	1
		1082	}
		1083
		1084	our $SLOW_MERGES;#d#
		1085	sub _can_merge {
		1086	my ($ob1, $ob2) = @_;
		1087
		1088	++$SLOW_MERGES;#d#
		1089
		1090	# we do the slow way here
		1091	return _object_equal $ob1, $ob2
		1092	}
703		1093
704	sub reattach {	1094	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1095	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1096	my ($obj) = @_;
707		1097
		1098	# no longer needed after getting rid of delete_package?
708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1099	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
709		1100
710	my $registry = $obj->registry;	1101	my $registry = $obj->registry;
711		1102
712	@$registry = ();	1103	@$registry = ();
713		1104
…		…
728	cf::attachable->attach (	1119	cf::attachable->attach (
729	prio => -1000000,	1120	prio => -1000000,
730	on_instantiate => sub {	1121	on_instantiate => sub {
731	my ($obj, $data) = @_;	1122	my ($obj, $data) = @_;
732		1123
733	$data = from_json $data;	1124	$data = decode_json $data;
734		1125
735	for (@$data) {	1126	for (@$data) {
736	my ($name, $args) = @$_;	1127	my ($name, $args) = @$_;
737		1128
738	$obj->attach ($name, %{$args || {} });	1129	$obj->attach ($name, %{$args || {} });
…		…
754	sub object_freezer_save {	1145	sub object_freezer_save {
755	my ($filename, $rdata, $objs) = @_;	1146	my ($filename, $rdata, $objs) = @_;
756		1147
757	sync_job {	1148	sync_job {
758	if (length $$rdata) {	1149	if (length $$rdata) {
		1150	utf8::decode (my $decname = $filename);
759	warn sprintf "saving %s (%d,%d)\n",	1151	warn sprintf "saving %s (%d,%d)\n",
760	$filename, length $$rdata, scalar @$objs;	1152	$decname, length $$rdata, scalar @$objs;
761		1153
762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1154	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
763	chmod SAVE_MODE, $fh;	1155	aio_chmod $fh, SAVE_MODE;
764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1156	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
765	aio_fsync $fh if $cf::USE_FSYNC;	1157	if ($cf::USE_FSYNC) {
		1158	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;
		1159	aio_fsync $fh;
		1160	}
766	close $fh;	1161	aio_close $fh;
767		1162
768	if (@$objs) {	1163	if (@$objs) {
769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1164	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
770	chmod SAVE_MODE, $fh;	1165	aio_chmod $fh, SAVE_MODE;
771	my $data = Storable::nfreeze { version => 1, objs => $objs };	1166	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
772	aio_write $fh, 0, (length $data), $data, 0;	1167	aio_write $fh, 0, (length $data), $data, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1168	if ($cf::USE_FSYNC) {
		1169	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;
		1170	aio_fsync $fh;
		1171	}
774	close $fh;	1172	aio_close $fh;
775	aio_rename "$filename.pst~", "$filename.pst";	1173	aio_rename "$filename.pst~", "$filename.pst";
776	}	1174	}
777	} else {	1175	} else {
778	aio_unlink "$filename.pst";	1176	aio_unlink "$filename.pst";
779	}	1177	}
780		1178
781	aio_rename "$filename~", $filename;	1179	aio_rename "$filename~", $filename;
		1180
		1181	$filename =~ s%/[^/]+$%%;
		1182	aio_pathsync $filename if $cf::USE_FSYNC;
782	} else {	1183	} else {
783	warn "FATAL: $filename~: $!\n";	1184	warn "unable to save objects: $filename~: $!\n";
784	}	1185	}
785	} else {	1186	} else {
786	aio_unlink $filename;	1187	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1188	aio_unlink "$filename.pst";
788	}	1189	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1190	};
796	}	1191	}
797		1192
798	sub object_freezer_as_string {	1193	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1194	my ($rdata, $objs) = @_;
800		1195
…		…
805		1200
806	sub object_thawer_load {	1201	sub object_thawer_load {
807	my ($filename) = @_;	1202	my ($filename) = @_;
808		1203
809	my ($data, $av);	1204	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1205
814	(aio_load $filename, $data) >= 0	1206	(aio_load $filename, $data) >= 0
815	or return;	1207	or return;
816		1208
817	unless (aio_stat "$filename.pst") {	1209	unless (aio_stat "$filename.pst") {
818	(aio_load "$filename.pst", $av) >= 0	1210	(aio_load "$filename.pst", $av) >= 0
819	or return;	1211	or return;
		1212
820	$av = eval { (Storable::thaw $av)->{objs} };	1213	my $st = eval { Coro::Storable::thaw $av };
		1214	$av = $st->{objs};
821	}	1215	}
822		1216
		1217	utf8::decode (my $decname = $filename);
823	warn sprintf "loading %s (%d)\n",	1218	warn sprintf "loading %s (%d,%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1219	$decname, length $data, scalar @{$av || []};
		1220
825	return ($data, $av);	1221	($data, $av)
826	}	1222	}
		1223
		1224	=head2 COMMAND CALLBACKS
		1225
		1226	=over 4
		1227
		1228	=cut
827		1229
828	#############################################################################	1230	#############################################################################
829	# command handling &c	1231	# command handling &c
830		1232
831	=item cf::register_command $name => \&callback($ob,$args);	1233	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1246	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1247	}
846		1248
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1249	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1250
849	Register a callbackf ro execution when the client sends an extcmd packet.	1251	Register a callback for execution when the client sends an (synchronous)
		1252	extcmd packet. Ext commands will be processed in the order they are
		1253	received by the server, like other user commands. The first argument is
		1254	the logged-in player. Ext commands can only be processed after a player
		1255	has logged in successfully.
850		1256
851	If the callback returns something, it is sent back as if reply was being	1257	If the callback returns something, it is sent back as if reply was being
852	called.	1258	called.
853		1259
		1260	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1261
		1262	Register a callback for execution when the client sends an (asynchronous)
		1263	exticmd packet. Exti commands are processed by the server as soon as they
		1264	are received, i.e. out of order w.r.t. other commands. The first argument
		1265	is a client socket. Exti commands can be received anytime, even before
		1266	log-in.
		1267
		1268	If the callback returns something, it is sent back as if reply was being
		1269	called.
		1270
854	=cut	1271	=cut
855		1272
856	sub register_extcmd {	1273	sub register_extcmd {
857	my ($name, $cb) = @_;	1274	my ($name, $cb) = @_;
858		1275
859	$EXTCMD{$name} = $cb;	1276	$EXTCMD{$name} = $cb;
860	}	1277	}
		1278
		1279	sub register_exticmd {
		1280	my ($name, $cb) = @_;
		1281
		1282	$EXTICMD{$name} = $cb;
		1283	}
		1284
		1285	use File::Glob ();
861		1286
862	cf::player->attach (	1287	cf::player->attach (
863	on_command => sub {	1288	on_command => sub {
864	my ($pl, $name, $params) = @_;	1289	my ($pl, $name, $params) = @_;
865		1290
…		…
873	cf::override;	1298	cf::override;
874	},	1299	},
875	on_extcmd => sub {	1300	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1301	my ($pl, $buf) = @_;
877		1302
878	my $msg = eval { from_json $buf };	1303	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1304
880	if (ref $msg) {	1305	if (ref $msg) {
		1306	my ($type, $reply, @payload) =
		1307	"ARRAY" eq ref $msg
		1308	? @$msg
		1309	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1310
		1311	my @reply;
		1312
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1313	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1314	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1315	}
		1316
		1317	$pl->ext_reply ($reply, @reply)
		1318	if $reply;
		1319
886	} else {	1320	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1321	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1322	}
889		1323
890	cf::override;	1324	cf::override;
891	},	1325	},
892	);	1326	);
893		1327
		1328	# "readahead" all extensions
894	sub load_extension {	1329	sub cache_extensions {
895	my ($path) = @_;	1330	my $grp = IO::AIO::aio_group;
896		1331
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1332	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
898	my $base = $1;	1333	for (grep /\.ext$/, @{$_[0]}) {
899	my $pkg = $1;	1334	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}	1335	}
922	die $@;
923	}	1336	};
924		1337
925	push @EXTS, $pkg;	1338	$grp
926	}	1339	}
927		1340
928	sub load_extensions {	1341	sub load_extensions {
		1342	cf::sync_job {
		1343	my %todo;
		1344
929	for my $ext (<$LIBDIR/*.ext>) {	1345	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1346	next unless -r $path;
931	eval {	1347
932	load_extension $ext;	1348	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1349	my $base = $1;
		1350	my $pkg = $1;
		1351	$pkg =~ s/[^[:word:]]/_/g;
		1352	$pkg = "ext::$pkg";
		1353
		1354	open my $fh, "<:utf8", $path
		1355	or die "$path: $!";
		1356
		1357	my $source = do { local $/; <$fh> };
		1358
		1359	my %ext = (
		1360	path => $path,
		1361	base => $base,
		1362	pkg => $pkg,
		1363	);
		1364
		1365	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1366	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1367
		1368	$ext{source} =
		1369	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1370	. "#line 1 \"$path\"\n{\n"
		1371	. $source
		1372	. "\n};\n1";
		1373
		1374	$todo{$base} = \%ext;
		1375	}
		1376
		1377	my %done;
		1378	while (%todo) {
		1379	my $progress;
		1380
		1381	while (my ($k, $v) = each %todo) {
		1382	for (split /,\s*/, $v->{meta}{depends}) {
		1383	goto skip
		1384	unless exists $done{$_};
		1385	}
		1386
		1387	warn "... loading '$k' into '$v->{pkg}'\n";
		1388
		1389	unless (eval $v->{source}) {
		1390	my $msg = $@ ? "$v->{path}: $@\n"
		1391	: "$v->{base}: extension inactive.\n";
		1392
		1393	if (exists $v->{meta}{mandatory}) {
		1394	warn $msg;
		1395	cf::cleanup "mandatory extension failed to load, exiting.";
		1396	}
		1397
		1398	warn $msg;
		1399	}
		1400
		1401	$done{$k} = delete $todo{$k};
		1402	push @EXTS, $v->{pkg};
		1403	$progress = 1;
933	1	1404	}
934	} or warn "$ext not loaded: $@";	1405
		1406	skip:
		1407	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1408	unless $progress;
		1409	}
935	}	1410	};
936	}	1411	}
937		1412
938	#############################################################################	1413	#############################################################################
939		1414
		1415	=back
		1416
940	=head2 CORE EXTENSIONS	1417	=head2 CORE EXTENSIONS
941		1418
942	Functions and methods that extend core crossfire objects.	1419	Functions and methods that extend core deliantra objects.
943		1420
944	=cut	1421	=cut
945		1422
946	package cf::player;	1423	package cf::player;
947		1424
…		…
949		1426
950	=head3 cf::player	1427	=head3 cf::player
951		1428
952	=over 4	1429	=over 4
953		1430
		1431	=item cf::player::num_playing
		1432
		1433	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1434
		1435	=cut
		1436
		1437	sub num_playing {
		1438	scalar grep
		1439	$_->ob->map
		1440	&& !$_->hidden
		1441	&& !$_->ob->flag (cf::FLAG_WIZ),
		1442	cf::player::list
		1443	}
		1444
954	=item cf::player::find $login	1445	=item cf::player::find $login
955		1446
956	Returns the given player object, loading it if necessary (might block).	1447	Returns the given player object, loading it if necessary (might block).
957		1448
958	=cut	1449	=cut
959		1450
960	sub playerdir($) {	1451	sub playerdir($) {
961	cf::localdir	1452	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1453	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1454	}
967		1455
968	sub path($) {	1456	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1457	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1458
971	(playerdir $login) . "/$login.pl"	1459	(playerdir $login) . "/playerdata"
972	}	1460	}
973		1461
974	sub find_active($) {	1462	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1463	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1464	and $cf::PLAYER{$_[0]}->active
…		…
979		1467
980	sub exists($) {	1468	sub exists($) {
981	my ($login) = @_;	1469	my ($login) = @_;
982		1470
983	$cf::PLAYER{$login}	1471	$cf::PLAYER{$login}
984	or cf::sync_job { !aio_stat path $login }	1472	or !aio_stat path $login
985	}	1473	}
986		1474
987	sub find($) {	1475	sub find($) {
988	return $cf::PLAYER{$_[0]} || do {	1476	return $cf::PLAYER{$_[0]} || do {
989	my $login = $_[0];	1477	my $login = $_[0];
990		1478
991	my $guard = cf::lock_acquire "user_find:$login";	1479	my $guard = cf::lock_acquire "user_find:$login";
992		1480
993	$cf::PLAYER{$_[0]} || do {	1481	$cf::PLAYER{$_[0]} || do {
994	my $pl = load_pl path $login	1482	# rename old playerfiles to new ones
		1483	#TODO: remove when no longer required
		1484	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1485	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1486	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1487	aio_unlink +(playerdir $login) . "/$login.pl";
		1488
		1489	my $f = new_from_file cf::object::thawer path $login
995	or return;	1490	or return;
		1491
		1492	my $pl = cf::player::load_pl $f
		1493	or return;
		1494
		1495	local $cf::PLAYER_LOADING{$login} = $pl;
		1496	$f->resolve_delayed_derefs;
996	$cf::PLAYER{$login} = $pl	1497	$cf::PLAYER{$login} = $pl
997	}	1498	}
998	}	1499	}
999	}	1500	}
1000		1501
…		…
1009	return if $pl->{deny_save};	1510	return if $pl->{deny_save};
1010		1511
1011	aio_mkdir playerdir $pl, 0770;	1512	aio_mkdir playerdir $pl, 0770;
1012	$pl->{last_save} = $cf::RUNTIME;	1513	$pl->{last_save} = $cf::RUNTIME;
1013		1514
		1515	cf::get_slot 0.01;
		1516
1014	$pl->save_pl ($path);	1517	$pl->save_pl ($path);
1015	Coro::cede;	1518	cf::cede_to_tick;
1016	}	1519	}
1017		1520
1018	sub new($) {	1521	sub new($) {
1019	my ($login) = @_;	1522	my ($login) = @_;
1020		1523
…		…
1026	$cf::PLAYER{$login} = $self;	1529	$cf::PLAYER{$login} = $self;
1027		1530
1028	$self	1531	$self
1029	}	1532	}
1030		1533
		1534	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1535
		1536	=cut
		1537
		1538	sub send_msg {
		1539	my $ns = shift->ns
		1540	or return;
		1541	$ns->send_msg (@_);
		1542	}
		1543
1031	=item $pl->quit_character	1544	=item $pl->quit_character
1032		1545
1033	Nukes the player without looking back. If logged in, the connection will	1546	Nukes the player without looking back. If logged in, the connection will
1034	be destroyed. May block for a long time.	1547	be destroyed. May block for a long time.
1035		1548
1036	=cut	1549	=cut
1037		1550
1038	sub quit_character {	1551	sub quit_character {
1039	my ($pl) = @_;	1552	my ($pl) = @_;
1040		1553
		1554	my $name = $pl->ob->name;
		1555
1041	$pl->{deny_save} = 1;	1556	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1557	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1043		1558
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1559	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1045	$pl->deactivate;	1560	$pl->deactivate;
		1561	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1562	$pl->ob->check_score;
1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1563	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1047	$pl->ns->destroy if $pl->ns;	1564	$pl->ns->destroy if $pl->ns;
1048		1565
1049	my $path = playerdir $pl;	1566	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1567	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1568	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1569	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1570	$pl->destroy;
		1571
		1572	my $prefix = qr<^~\Q$name\E/>;
		1573
		1574	# nuke player maps
		1575	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1576
1054	IO::AIO::aio_rmtree $temp;	1577	IO::AIO::aio_rmtree $temp;
		1578	}
		1579
		1580	=item $pl->kick
		1581
		1582	Kicks a player out of the game. This destroys the connection.
		1583
		1584	=cut
		1585
		1586	sub kick {
		1587	my ($pl, $kicker) = @_;
		1588
		1589	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1590	$pl->killer ("kicked");
		1591	$pl->ns->destroy;
1055	}	1592	}
1056		1593
1057	=item cf::player::list_logins	1594	=item cf::player::list_logins
1058		1595
1059	Returns am arrayref of all valid playernames in the system, can take a	1596	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1597	while and may block, so not sync_job-capable, ever.
1061		1598
1062	=cut	1599	=cut
1063		1600
1064	sub list_logins {	1601	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1602	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1603	or return [];
1067		1604
1068	my @logins;	1605	my @logins;
1069		1606
1070	for my $login (@$dirs) {	1607	for my $login (@$dirs) {
		1608	my $path = path $login;
		1609
		1610	# a .pst is a dead give-away for a valid player
		1611	# if no pst file found, open and chekc for blocked users
		1612	if (aio_stat "$path.pst") {
1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1613	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1072	aio_read $fh, 0, 512, my $buf, 0 or next;	1614	aio_read $fh, 0, 512, my $buf, 0 or next;
1073	$buf !~ /^password -------------$/m or next; # official not-valid tag	1615	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1616	}
1074		1617
1075	utf8::decode $login;	1618	utf8::decode $login;
1076	push @logins, $login;	1619	push @logins, $login;
1077	}	1620	}
1078		1621
…		…
1105	}	1648	}
1106		1649
1107	\@paths	1650	\@paths
1108	}	1651	}
1109		1652
		1653	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1654
		1655	Expand deliantra pod fragments into protocol xml.
		1656
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1657	=item $player->ext_reply ($msgid, @msg)
1111		1658
1112	Sends an ext reply to the player.	1659	Sends an ext reply to the player.
1113		1660
1114	=cut	1661	=cut
1115		1662
1116	sub ext_reply($$$%) {	1663	sub ext_reply($$@) {
1117	my ($self, $id, %msg) = @_;	1664	my ($self, $id, @msg) = @_;
1118		1665
1119	$msg{msgid} = $id;	1666	$self->ns->ext_reply ($id, @msg)
1120
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1667	}
1123		1668
1124	package cf;	1669	=item $player->ext_msg ($type, @msg)
		1670
		1671	Sends an ext event to the client.
		1672
		1673	=cut
		1674
		1675	sub ext_msg($$@) {
		1676	my ($self, $type, @msg) = @_;
		1677
		1678	$self->ns->ext_msg ($type, @msg);
		1679	}
		1680
		1681	=head3 cf::region
		1682
		1683	=over 4
		1684
		1685	=cut
		1686
		1687	package cf::region;
		1688
		1689	=item cf::region::find_by_path $path
		1690
		1691	Tries to decuce the likely region for a map knowing only its path.
		1692
		1693	=cut
		1694
		1695	sub find_by_path($) {
		1696	my ($path) = @_;
		1697
		1698	my ($match, $specificity);
		1699
		1700	for my $region (list) {
		1701	if ($region->{match} && $path =~ $region->{match}) {
		1702	($match, $specificity) = ($region, $region->specificity)
		1703	if $region->specificity > $specificity;
		1704	}
		1705	}
		1706
		1707	$match
		1708	}
1125		1709
1126	=back	1710	=back
1127
1128		1711
1129	=head3 cf::map	1712	=head3 cf::map
1130		1713
1131	=over 4	1714	=over 4
1132		1715
…		…
1144	our $MAX_RESET = 3600;	1727	our $MAX_RESET = 3600;
1145	our $DEFAULT_RESET = 3000;	1728	our $DEFAULT_RESET = 3000;
1146		1729
1147	sub generate_random_map {	1730	sub generate_random_map {
1148	my ($self, $rmp) = @_;	1731	my ($self, $rmp) = @_;
		1732
		1733	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1734
1149	# mit "rum" bekleckern, nicht	1735	# mit "rum" bekleckern, nicht
1150	$self->_create_random_map (	1736	$self->_create_random_map (
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1737	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1738	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1739	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1187	my ($self, $merge) = @_;	1773	my ($self, $merge) = @_;
1188		1774
1189	# we have to keep some variables in memory intact	1775	# we have to keep some variables in memory intact
1190	local $self->{path};	1776	local $self->{path};
1191	local $self->{load_path};	1777	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1778
1195	$self->SUPER::thawer_merge ($merge);	1779	$self->SUPER::thawer_merge ($merge);
1196	}	1780	}
1197		1781
1198	sub normalise {	1782	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1829	$self->init; # pass $1 etc.
1246	return $self;	1830	return $self;
1247	}	1831	}
1248	}	1832	}
1249		1833
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1834	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1835	()
1252	}	1836	}
1253		1837
1254	sub init {	1838	sub init {
1255	my ($self) = @_;	1839	my ($self) = @_;
…		…
1270		1854
1271	# the original (read-only) location	1855	# the original (read-only) location
1272	sub load_path {	1856	sub load_path {
1273	my ($self) = @_;	1857	my ($self) = @_;
1274		1858
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1859	"$MAPDIR/$self->{path}.map"
1276	}	1860	}
1277		1861
1278	# the temporary/swap location	1862	# the temporary/swap location
1279	sub save_path {	1863	sub save_path {
1280	my ($self) = @_;	1864	my ($self) = @_;
1281		1865
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1866	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1867	"$TMPDIR/$path.map"
1284	}	1868	}
1285		1869
1286	# the unique path, undef == no special unique path	1870	# the unique path, undef == no special unique path
1287	sub uniq_path {	1871	sub uniq_path {
1288	my ($self) = @_;	1872	my ($self) = @_;
1289		1873
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1874	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1875	"$UNIQUEDIR/$path"
1292	}	1876	}
1293		1877
1294	# and all this just because we cannot iterate over	1878	sub decay_objects {
1295	# all maps in C++...
1296	sub change_all_map_light {
1297	my ($change) = @_;	1879	my ($self) = @_;
1298		1880
1299	$_->change_map_light ($change)	1881	return if $self->{deny_reset};
1300	for grep $_->outdoor, values %cf::MAP;	1882
		1883	$self->do_decay_objects;
1301	}	1884	}
1302		1885
1303	sub unlink_save {	1886	sub unlink_save {
1304	my ($self) = @_;	1887	my ($self) = @_;
1305		1888
1306	utf8::encode (my $save = $self->save_path);	1889	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1890	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1891	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1892	}
1315		1893
1316	sub load_header_from($) {	1894	sub load_header_from($) {
1317	my ($self, $path) = @_;	1895	my ($self, $path) = @_;
1318		1896
1319	utf8::encode $path;	1897	utf8::encode $path;
1320	#aio_open $path, O_RDONLY, 0	1898	my $f = new_from_file cf::object::thawer $path
1321	# or return;
1322
1323	$self->_load_header ($path)
1324	or return;	1899	or return;
		1900
		1901	$self->_load_header ($f)
		1902	or return;
		1903
		1904	local $MAP_LOADING{$self->{path}} = $self;
		1905	$f->resolve_delayed_derefs;
1325		1906
1326	$self->{load_path} = $path;	1907	$self->{load_path} = $path;
1327		1908
1328	1	1909	1
1329	}	1910	}
…		…
1368	$self->load_header_orig	1949	$self->load_header_orig
1369	or return;	1950	or return;
1370	$self->prepare_orig;	1951	$self->prepare_orig;
1371	}	1952	}
1372		1953
		1954	$self->{deny_reset} = 1
		1955	if $self->no_reset;
		1956
		1957	$self->default_region (cf::region::find_by_path $self->{path})
		1958	unless $self->default_region;
		1959
1373	1	1960	1
1374	}	1961	}
1375		1962
1376	sub find;	1963	sub find;
1377	sub find {	1964	sub find {
1378	my ($path, $origin) = @_;	1965	my ($path, $origin) = @_;
1379		1966
1380	$path = normalise $path, $origin && $origin->path;	1967	$path = normalise $path, $origin && $origin->path;
1381		1968
		1969	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1382	cf::lock_wait "map_find:$path";	1970	my $guard2 = cf::lock_acquire "map_find:$path";
1383		1971
1384	$cf::MAP{$path} || do {	1972	$cf::MAP{$path} || do {
1385	my $guard = cf::lock_acquire "map_find:$path";
1386	my $map = new_from_path cf::map $path	1973	my $map = new_from_path cf::map $path
1387	or return;	1974	or return;
1388		1975
1389	$map->{last_save} = $cf::RUNTIME;	1976	$map->{last_save} = $cf::RUNTIME;
1390		1977
1391	$map->load_header	1978	$map->load_header
1392	or return;	1979	or return;
1393		1980
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1981	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	1982	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	1983	#$cf::WAIT_FOR_TICK->wait;
		1984	undef $guard2;
		1985	undef $guard1;
1397	$map->reset;	1986	$map->reset;
1398	undef $guard;
1399	return find $path;	1987	return find $path;
1400	}	1988	}
1401		1989
1402	$cf::MAP{$path} = $map	1990	$cf::MAP{$path} = $map
1403	}	1991	}
…		…
1410	my ($self) = @_;	1998	my ($self) = @_;
1411		1999
1412	local $self->{deny_reset} = 1; # loading can take a long time	2000	local $self->{deny_reset} = 1; # loading can take a long time
1413		2001
1414	my $path = $self->{path};	2002	my $path = $self->{path};
		2003
		2004	{
1415	my $guard = cf::lock_acquire "map_load:$path";	2005	my $guard = cf::lock_acquire "map_data:$path";
1416		2006
		2007	return unless $self->valid;
1417	return if $self->in_memory != cf::MAP_SWAPPED;	2008	return unless $self->in_memory == cf::MAP_SWAPPED;
1418		2009
1419	$self->in_memory (cf::MAP_LOADING);	2010	$self->in_memory (cf::MAP_LOADING);
1420		2011
1421	$self->alloc;	2012	$self->alloc;
1422		2013
1423	$self->pre_load;	2014	$self->pre_load;
		2015	cf::cede_to_tick;
1424		2016
1425	$self->_load_objects ($self->{load_path}, 1)	2017	my $f = new_from_file cf::object::thawer $self->{load_path};
		2018	$f->skip_block;
		2019	$self->_load_objects ($f)
1426	or return;	2020	or return;
1427		2021
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2022	$self->post_load_original
1429	if delete $self->{load_original};	2023	if delete $self->{load_original};
1430		2024
1431	if (my $uniq = $self->uniq_path) {	2025	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;	2026	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {	2027	unless (aio_stat $uniq) {
		2028	if (my $f = new_from_file cf::object::thawer $uniq) {
1434	$self->clear_unique_items;	2029	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);	2030	$self->_load_objects ($f);
		2031	$f->resolve_delayed_derefs;
		2032	}
1436	}	2033	}
1437	}	2034	}
1438		2035
1439	Coro::cede;	2036	$f->resolve_delayed_derefs;
1440		2037
		2038	cf::cede_to_tick;
1441	# now do the right thing for maps	2039	# now do the right thing for maps
1442	$self->link_multipart_objects;	2040	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;
1449	$self->set_darkness_map;
1450	$self->difficulty ($self->estimate_difficulty)	2041	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	2042	unless $self->difficulty;
1452	Coro::cede;	2043	cf::cede_to_tick;
		2044
		2045	unless ($self->{deny_activate}) {
		2046	$self->decay_objects;
		2047	$self->fix_auto_apply;
		2048	$self->update_buttons;
		2049	cf::cede_to_tick;
1453	$self->activate;	2050	$self->activate;
		2051	}
		2052
		2053	$self->{last_save} = $cf::RUNTIME;
		2054	$self->last_access ($cf::RUNTIME);
		2055
		2056	$self->in_memory (cf::MAP_ACTIVE);
1454	}	2057	}
1455		2058
1456	$self->post_load;	2059	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	2060	}
1460		2061
1461	sub customise_for {	2062	sub customise_for {
1462	my ($self, $ob) = @_;	2063	my ($self, $ob) = @_;
1463		2064
1464	return find "~" . $ob->name . "/" . $self->{path}	2065	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	2066	if $self->per_player;
1466		2067
		2068	# return find "?party/" . $ob->name . "/" . $self->{path}
		2069	# if $self->per_party;
		2070
1467	$self	2071	$self
1468	}	2072	}
1469		2073
1470	# find and load all maps in the 3x3 area around a map	2074	# find and load all maps in the 3x3 area around a map
1471	sub load_diag {	2075	sub load_neighbours {
1472	my ($map) = @_;	2076	my ($map) = @_;
1473		2077
1474	my @diag; # diagonal neighbours	2078	my @neigh; # diagonal neighbours
1475		2079
1476	for (0 .. 3) {	2080	for (0 .. 3) {
1477	my $neigh = $map->tile_path ($_)	2081	my $neigh = $map->tile_path ($_)
1478	or next;	2082	or next;
1479	$neigh = find $neigh, $map	2083	$neigh = find $neigh, $map
1480	or next;	2084	or next;
1481	$neigh->load;	2085	$neigh->load;
1482		2086
		2087	push @neigh,
1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2088	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2089	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1485	}	2090	}
1486		2091
1487	for (@diag) {	2092	for (grep defined $_->[0], @neigh) {
		2093	my ($path, $origin) = @$_;
1488	my $neigh = find @$_	2094	my $neigh = find $path, $origin
1489	or next;	2095	or next;
1490	$neigh->load;	2096	$neigh->load;
1491	}	2097	}
1492	}	2098	}
1493		2099
…		…
1498	}	2104	}
1499		2105
1500	sub do_load_sync {	2106	sub do_load_sync {
1501	my ($map) = @_;	2107	my ($map) = @_;
1502		2108
		2109	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2110	if $Coro::current == $Coro::main;
		2111
1503	cf::sync_job { $map->load };	2112	cf::sync_job { $map->load };
1504	}	2113	}
1505		2114
1506	our %MAP_PREFETCH;	2115	our %MAP_PREFETCH;
1507	our $MAP_PREFETCHER = undef;	2116	our $MAP_PREFETCHER = undef;
1508		2117
1509	sub find_async {	2118	sub find_async {
1510	my ($path, $origin) = @_;	2119	my ($path, $origin, $load) = @_;
1511		2120
1512	$path = normalise $path, $origin && $origin->{path};	2121	$path = normalise $path, $origin && $origin->{path};
1513		2122
1514	if (my $map = $cf::MAP{$path}) {	2123	if (my $map = $cf::MAP{$path}) {
1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2124	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1516	}	2125	}
1517		2126
1518	undef $MAP_PREFETCH{$path};	2127	$MAP_PREFETCH{$path} |= $load;
		2128
1519	$MAP_PREFETCHER ||= cf::async {	2129	$MAP_PREFETCHER ||= cf::async {
		2130	$Coro::current->{desc} = "map prefetcher";
		2131
1520	while (%MAP_PREFETCH) {	2132	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	2133	while (my ($k, $v) = each %MAP_PREFETCH) {
1522	my $map = find $path	2134	if (my $map = find $k) {
1523	or next;
1524	$map->load;	2135	$map->load if $v;
		2136	}
1525		2137
1526	delete $MAP_PREFETCH{$path};	2138	delete $MAP_PREFETCH{$k};
1527	}	2139	}
1528	}	2140	}
1529	undef $MAP_PREFETCHER;	2141	undef $MAP_PREFETCHER;
1530	};	2142	};
1531	$MAP_PREFETCHER->prio (6);	2143	$MAP_PREFETCHER->prio (6);
…		…
1534	}	2146	}
1535		2147
1536	sub save {	2148	sub save {
1537	my ($self) = @_;	2149	my ($self) = @_;
1538		2150
1539	my $lock = cf::lock_acquire "map_data:" . $self->path;	2151	my $lock = cf::lock_acquire "map_data:$self->{path}";
1540		2152
1541	$self->{last_save} = $cf::RUNTIME;	2153	$self->{last_save} = $cf::RUNTIME;
1542		2154
1543	return unless $self->dirty;	2155	return unless $self->dirty;
1544		2156
…		…
1550	return if $self->{deny_save};	2162	return if $self->{deny_save};
1551		2163
1552	local $self->{last_access} = $self->last_access;#d#	2164	local $self->{last_access} = $self->last_access;#d#
1553		2165
1554	cf::async {	2166	cf::async {
		2167	$Coro::current->{desc} = "map player save";
1555	$_->contr->save for $self->players;	2168	$_->contr->save for $self->players;
1556	};	2169	};
		2170
		2171	cf::get_slot 0.02;
1557		2172
1558	if ($uniq) {	2173	if ($uniq) {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2174	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2175	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1561	} else {	2176	} else {
…		…
1567	my ($self) = @_;	2182	my ($self) = @_;
1568		2183
1569	# save first because save cedes	2184	# save first because save cedes
1570	$self->save;	2185	$self->save;
1571		2186
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2187	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2188
1574	return if $self->players;	2189	return if $self->players;
1575	return if $self->in_memory != cf::MAP_IN_MEMORY;	2190	return if $self->in_memory != cf::MAP_ACTIVE;
1576	return if $self->{deny_save};	2191	return if $self->{deny_save};
1577		2192
		2193	$self->in_memory (cf::MAP_SWAPPED);
		2194
		2195	$self->deactivate;
		2196	$_->clear_links_to ($self) for values %cf::MAP;
1578	$self->clear;	2197	$self->clear;
1579	$self->in_memory (cf::MAP_SWAPPED);
1580	}	2198	}
1581		2199
1582	sub reset_at {	2200	sub reset_at {
1583	my ($self) = @_;	2201	my ($self) = @_;
1584		2202
1585	# TODO: safety, remove and allow resettable per-player maps	2203	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	2204	return 1e99 if $self->{deny_reset};
1588		2205
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2206	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2207	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2208
…		…
1602	my ($self) = @_;	2219	my ($self) = @_;
1603		2220
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2221	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2222
1606	return if $self->players;	2223	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2224
1609	warn "resetting map ", $self->path;#d#	2225	warn "resetting map ", $self->path;
		2226
		2227	$self->in_memory (cf::MAP_SWAPPED);
		2228
		2229	# need to save uniques path
		2230	unless ($self->{deny_save}) {
		2231	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2232
		2233	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2234	if $uniq;
		2235	}
1610		2236
1611	delete $cf::MAP{$self->path};	2237	delete $cf::MAP{$self->path};
1612		2238
1613	$self->in_memory (cf::MAP_SWAPPED);	2239	$self->deactivate;
		2240	$_->clear_links_to ($self) for values %cf::MAP;
1614	$self->clear;	2241	$self->clear;
1615
1616	$_->clear_links_to ($self) for values %cf::MAP;
1617		2242
1618	$self->unlink_save;	2243	$self->unlink_save;
1619	$self->destroy;	2244	$self->destroy;
1620	}	2245	}
1621		2246
1622	my $nuke_counter = "aaaa";	2247	my $nuke_counter = "aaaa";
1623		2248
1624	sub nuke {	2249	sub nuke {
1625	my ($self) = @_;	2250	my ($self) = @_;
1626		2251
		2252	{
		2253	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2254
1627	delete $cf::MAP{$self->path};	2255	delete $cf::MAP{$self->path};
1628		2256
1629	$self->unlink_save;	2257	$self->unlink_save;
1630		2258
1631	bless $self, "cf::map";	2259	bless $self, "cf::map";
1632	delete $self->{deny_reset};	2260	delete $self->{deny_reset};
1633	$self->{deny_save} = 1;	2261	$self->{deny_save} = 1;
1634	$self->reset_timeout (1);	2262	$self->reset_timeout (1);
1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2263	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1636		2264
1637	$cf::MAP{$self->path} = $self;	2265	$cf::MAP{$self->path} = $self;
		2266	}
1638		2267
1639	$self->reset; # polite request, might not happen	2268	$self->reset; # polite request, might not happen
		2269	}
		2270
		2271	=item $maps = cf::map::tmp_maps
		2272
		2273	Returns an arrayref with all map paths of currently instantiated and saved
		2274	maps. May block.
		2275
		2276	=cut
		2277
		2278	sub tmp_maps() {
		2279	[
		2280	map {
		2281	utf8::decode $_;
		2282	/\.map$/
		2283	? normalise $_
		2284	: ()
		2285	} @{ aio_readdir $TMPDIR or [] }
		2286	]
		2287	}
		2288
		2289	=item $maps = cf::map::random_maps
		2290
		2291	Returns an arrayref with all map paths of currently instantiated and saved
		2292	random maps. May block.
		2293
		2294	=cut
		2295
		2296	sub random_maps() {
		2297	[
		2298	map {
		2299	utf8::decode $_;
		2300	/\.map$/
		2301	? normalise "?random/$_"
		2302	: ()
		2303	} @{ aio_readdir $RANDOMDIR or [] }
		2304	]
1640	}	2305	}
1641		2306
1642	=item cf::map::unique_maps	2307	=item cf::map::unique_maps
1643		2308
1644	Returns an arrayref of paths of all shared maps that have	2309	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2310	instantiated unique items. May block.
1646		2311
1647	=cut	2312	=cut
1648		2313
1649	sub unique_maps() {	2314	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2315	[
1651	or return;	2316	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2317	utf8::decode $_;
1657	next if /\.pst$/;	2318	s/\.map$//; # TODO future compatibility hack
1658	next unless /^$PATH_SEP/o;	2319	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1659		2320	? ()
1660	push @paths, cf::map::normalise $_;	2321	: normalise $_
		2322	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2323	]
1662
1663	\@paths
1664	}	2324	}
1665
1666	package cf;
1667		2325
1668	=back	2326	=back
1669		2327
1670	=head3 cf::object	2328	=head3 cf::object
1671		2329
…		…
1675		2333
1676	=over 4	2334	=over 4
1677		2335
1678	=item $ob->inv_recursive	2336	=item $ob->inv_recursive
1679		2337
1680	Returns the inventory of the object _and_ their inventories, recursively.	2338	Returns the inventory of the object I<and> their inventories, recursively,
		2339	but I<not> the object itself.
1681		2340
1682	=cut	2341	=cut
1683		2342
1684	sub inv_recursive_;	2343	sub inv_recursive_;
1685	sub inv_recursive_ {	2344	sub inv_recursive_ {
…		…
1688		2347
1689	sub inv_recursive {	2348	sub inv_recursive {
1690	inv_recursive_ inv $_[0]	2349	inv_recursive_ inv $_[0]
1691	}	2350	}
1692		2351
		2352	=item $ref = $ob->ref
		2353
		2354	Creates and returns a persistent reference to an object that can be stored as a string.
		2355
		2356	=item $ob = cf::object::deref ($refstring)
		2357
		2358	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2359	even if the object actually exists. May block.
		2360
		2361	=cut
		2362
		2363	sub deref {
		2364	my ($ref) = @_;
		2365
		2366	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2367	my ($uuid, $name) = ($1, $2);
		2368	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2369	or return;
		2370	$pl->ob->uuid eq $uuid
		2371	or return;
		2372
		2373	$pl->ob
		2374	} else {
		2375	warn "$ref: cannot resolve object reference\n";
		2376	undef
		2377	}
		2378	}
		2379
1693	package cf;	2380	package cf;
1694		2381
1695	=back	2382	=back
1696		2383
1697	=head3 cf::object::player	2384	=head3 cf::object::player
…		…
1703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2390	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1704	can be C<undef>. Does the right thing when the player is currently in a	2391	can be C<undef>. Does the right thing when the player is currently in a
1705	dialogue with the given NPC character.	2392	dialogue with the given NPC character.
1706		2393
1707	=cut	2394	=cut
		2395
		2396	our $SAY_CHANNEL = {
		2397	id => "say",
		2398	title => "Map",
		2399	reply => "say ",
		2400	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2401	};
		2402
		2403	our $CHAT_CHANNEL = {
		2404	id => "chat",
		2405	title => "Chat",
		2406	reply => "chat ",
		2407	tooltip => "Player chat and shouts, global to the server.",
		2408	};
1708		2409
1709	# rough implementation of a future "reply" method that works	2410	# rough implementation of a future "reply" method that works
1710	# with dialog boxes.	2411	# with dialog boxes.
1711	#TODO: the first argument must go, split into a $npc->reply_to ( method	2412	#TODO: the first argument must go, split into a $npc->reply_to ( method
1712	sub cf::object::player::reply($$$;$) {	2413	sub cf::object::player::reply($$$;$) {
…		…
1714		2415
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2416	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2417
1717	if ($self->{record_replies}) {	2418	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2419	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2420
1719	} else {	2421	} else {
		2422	my $pl = $self->contr;
		2423
		2424	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2425	my $dialog = $pl->{npc_dialog};
		2426	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2427
		2428	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2429	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2430	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2431	}
1722	}	2432	}
		2433	}
		2434
		2435	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2436
		2437	=cut
		2438
		2439	sub cf::object::send_msg {
		2440	my $pl = shift->contr
		2441	or return;
		2442	$pl->send_msg (@_);
1723	}	2443	}
1724		2444
1725	=item $player_object->may ("access")	2445	=item $player_object->may ("access")
1726		2446
1727	Returns wether the given player is authorized to access resource "access"	2447	Returns wether the given player is authorized to access resource "access"
…		…
1740		2460
1741	=item $player_object->enter_link	2461	=item $player_object->enter_link
1742		2462
1743	Freezes the player and moves him/her to a special map (C<{link}>).	2463	Freezes the player and moves him/her to a special map (C<{link}>).
1744		2464
1745	The player should be reasonably safe there for short amounts of time. You	2465	The player should be reasonably safe there for short amounts of time (e.g.
1746	I<MUST> call C<leave_link> as soon as possible, though.	2466	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2467	though, as the palyer cannot control the character while it is on the link
		2468	map.
1747		2469
1748	Will never block.	2470	Will never block.
1749		2471
1750	=item $player_object->leave_link ($map, $x, $y)	2472	=item $player_object->leave_link ($map, $x, $y)
1751		2473
…		…
1774	$self->deactivate_recursive;	2496	$self->deactivate_recursive;
1775		2497
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2498	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2499
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2501	if $self->map && $self->map->{path} ne "{link}";
1780		2502
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2503	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2504	}
1783		2505
1784	sub cf::object::player::leave_link {	2506	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2507	my ($self, $map, $x, $y) = @_;
		2508
		2509	return unless $self->contr->active;
1786		2510
1787	my $link_pos = delete $self->{_link_pos};	2511	my $link_pos = delete $self->{_link_pos};
1788		2512
1789	unless ($map) {	2513	unless ($map) {
1790	# restore original map position	2514	# restore original map position
…		…
1804	# use -1 or undef as default coordinates, not 0, 0	2528	# use -1 or undef as default coordinates, not 0, 0
1805	($x, $y) = ($map->enter_x, $map->enter_y)	2529	($x, $y) = ($map->enter_x, $map->enter_y)
1806	if $x <=0 && $y <= 0;	2530	if $x <=0 && $y <= 0;
1807		2531
1808	$map->load;	2532	$map->load;
1809	$map->load_diag;	2533	$map->load_neighbours;
1810		2534
1811	return unless $self->contr->active;	2535	return unless $self->contr->active;
		2536
		2537	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2538	$self->enter_map ($map, $x, $y);
		2539
		2540	# only activate afterwards, to support waiting in hooks
1812	$self->activate_recursive;	2541	$self->activate_recursive;
1813	$self->enter_map ($map, $x, $y);
1814	}	2542	}
1815		2543
1816	cf::player->attach (	2544	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2545
1820	# abort map switching before logout	2546	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2547	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2548	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2549	the new (success) or old (failed) map position. In either case, $done will
1824	};	2550	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2551
1830	# try to abort aborted map switching on player login :)	2552	Note that $check will be called with a potentially non-loaded map, so if
1831	# should happen only on crashes	2553	it needs a loaded map it has to call C<< ->load >>.
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847		2554
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2555	=cut
		2556
		2557	our $GOTOGEN;
1851		2558
1852	sub cf::object::player::goto {	2559	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2560	my ($self, $path, $x, $y, $check, $done) = @_;
		2561
		2562	# do generation counting so two concurrent goto's will be executed in-order
		2563	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2564
1855	$self->enter_link;	2565	$self->enter_link;
1856		2566
1857	(async {	2567	(async {
		2568	$Coro::current->{desc} = "player::goto $path $x $y";
		2569
		2570	# *tag paths override both path and x|y
		2571	if ($path =~ /^\*(.*)$/) {
		2572	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2573	my $ob = $obs[rand @obs];
		2574
		2575	# see if we actually can go there
		2576	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2577	$ob = $obs[rand @obs];
		2578	} else {
		2579	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2580	}
		2581	# else put us there anyways for now #d#
		2582
		2583	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2584	} else {
		2585	($path, $x, $y) = (undef, undef, undef);
		2586	}
		2587	}
		2588
1858	my $map = eval {	2589	my $map = eval {
1859	my $map = cf::map::find $path;	2590	my $map = defined $path ? cf::map::find $path : undef;
		2591
		2592	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2593	$map = $map->customise_for ($self);
		2594	$map = $check->($map) if $check && $map;
		2595	} else {
		2596	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2597	}
		2598
1861	$map	2599	$map
		2600	};
		2601
		2602	if ($@) {
		2603	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2604	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2605	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2606
		2607	if ($gen == $self->{_goto_generation}) {
		2608	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2609	$self->leave_link ($map, $x, $y);
		2610	}
		2611
		2612	$done->() if $done;
1866	})->prio (1);	2613	})->prio (1);
1867	}	2614	}
1868		2615
1869	=item $player_object->enter_exit ($exit_object)	2616	=item $player_object->enter_exit ($exit_object)
1870		2617
…		…
1890	}	2637	}
1891		2638
1892	sub prepare_random_map {	2639	sub prepare_random_map {
1893	my ($exit) = @_;	2640	my ($exit) = @_;
1894		2641
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2642	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2643	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2644	# that depends on the exit object
1900		2645
1901	my $rmp = parse_random_map_params $exit->msg;	2646	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	2648	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	2649	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	2650	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	2651	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	2652	$rmp->{origin_y} = $exit->y;
		2653
		2654	$exit->map->touch;
1908	}	2655	}
1909		2656
1910	$rmp->{random_seed} ||= $exit->random_seed;	2657	$rmp->{random_seed} ||= $exit->random_seed;
1911		2658
1912	my $data = cf::to_json $rmp;	2659	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	2660	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2661	my $meta = "$RANDOMDIR/$md5.meta";
1915		2662
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2663	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2664	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2665	undef $fh;
1919	aio_rename "$meta~", $meta;	2666	aio_rename "$meta~", $meta;
1920		2667
		2668	my $slaying = "?random/$md5";
		2669
		2670	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	2671	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	2672	$exit->msg (undef);
		2673	}
1923	}	2674	}
1924	}	2675	}
1925		2676
1926	sub cf::object::player::enter_exit {	2677	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	2678	my ($self, $exit) = @_;
1928		2679
1929	return unless $self->type == cf::PLAYER;	2680	return unless $self->type == cf::PLAYER;
1930		2681
1931	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
1933	cf::sync_job { prepare_random_map $exit };
1934	}
1935
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;
1939
1940	$self->enter_link;	2682	$self->enter_link;
1941		2683
1942	(async {	2684	(async {
1943	$self->deactivate_recursive; # just to be sure	2685	$Coro::current->{desc} = "enter_exit";
		2686
1944	unless (eval {	2687	unless (eval {
		2688	$self->deactivate_recursive; # just to be sure
		2689
		2690	# random map handling
		2691	{
		2692	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2693
		2694	prepare_random_map $exit
		2695	if $exit->slaying eq "/!";
		2696	}
		2697
		2698	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2699	my $x = $exit->stats->hp;
		2700	my $y = $exit->stats->sp;
		2701
1945	$self->goto ($slaying, $hp, $sp);	2702	$self->goto ($map, $x, $y);
1946		2703
		2704	# if exit is damned, update players death & WoR home-position
		2705	$self->contr->savebed ($map, $x, $y)
		2706	if $exit->flag (cf::FLAG_DAMNED);
		2707
1947	1;	2708	1
1948	}) {	2709	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2710	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "I'll try to bring you back to the map you were before. "	2711	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2712	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2713	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2714
1954	warn "ERROR in enter_exit: $@";	2715	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2716	$self->leave_link;
1956	}	2717	}
1957	})->prio (1);	2718	})->prio (1);
…		…
1970		2731
1971	sub cf::client::send_drawinfo {	2732	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2733	my ($self, $text, $flags) = @_;
1973		2734
1974	utf8::encode $text;	2735	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2736	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2737	}
1977		2738
		2739	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2740
		2741	Send a drawinfo or msg packet to the client, formatting the msg for the
		2742	client if neccessary. C<$type> should be a string identifying the type of
		2743	the message, with C<log> being the default. If C<$color> is negative, suppress
		2744	the message unless the client supports the msg packet.
		2745
		2746	=cut
		2747
		2748	# non-persistent channels (usually the info channel)
		2749	our %CHANNEL = (
		2750	"c/identify" => {
		2751	id => "infobox",
		2752	title => "Identify",
		2753	reply => undef,
		2754	tooltip => "Items recently identified",
		2755	},
		2756	"c/examine" => {
		2757	id => "infobox",
		2758	title => "Examine",
		2759	reply => undef,
		2760	tooltip => "Signs and other items you examined",
		2761	},
		2762	"c/book" => {
		2763	id => "infobox",
		2764	title => "Book",
		2765	reply => undef,
		2766	tooltip => "The contents of a note or book",
		2767	},
		2768	"c/lookat" => {
		2769	id => "infobox",
		2770	title => "Look",
		2771	reply => undef,
		2772	tooltip => "What you saw there",
		2773	},
		2774	"c/who" => {
		2775	id => "infobox",
		2776	title => "Players",
		2777	reply => undef,
		2778	tooltip => "Shows players who are currently online",
		2779	},
		2780	"c/body" => {
		2781	id => "infobox",
		2782	title => "Body Parts",
		2783	reply => undef,
		2784	tooltip => "Shows which body parts you posess and are available",
		2785	},
		2786	"c/statistics" => {
		2787	id => "infobox",
		2788	title => "Statistics",
		2789	reply => undef,
		2790	tooltip => "Shows your primary statistics",
		2791	},
		2792	"c/skills" => {
		2793	id => "infobox",
		2794	title => "Skills",
		2795	reply => undef,
		2796	tooltip => "Shows your experience per skill and item power",
		2797	},
		2798	"c/shopitems" => {
		2799	id => "infobox",
		2800	title => "Shop Items",
		2801	reply => undef,
		2802	tooltip => "Shows the items currently for sale in this shop",
		2803	},
		2804	"c/resistances" => {
		2805	id => "infobox",
		2806	title => "Resistances",
		2807	reply => undef,
		2808	tooltip => "Shows your resistances",
		2809	},
		2810	"c/pets" => {
		2811	id => "infobox",
		2812	title => "Pets",
		2813	reply => undef,
		2814	tooltip => "Shows information abotu your pets/a specific pet",
		2815	},
		2816	"c/perceiveself" => {
		2817	id => "infobox",
		2818	title => "Perceive Self",
		2819	reply => undef,
		2820	tooltip => "You gained detailed knowledge about yourself",
		2821	},
		2822	"c/uptime" => {
		2823	id => "infobox",
		2824	title => "Uptime",
		2825	reply => undef,
		2826	tooltip => "How long the server has been running since last restart",
		2827	},
		2828	"c/mapinfo" => {
		2829	id => "infobox",
		2830	title => "Map Info",
		2831	reply => undef,
		2832	tooltip => "Information related to the maps",
		2833	},
		2834	"c/party" => {
		2835	id => "party",
		2836	title => "Party",
		2837	reply => "gsay ",
		2838	tooltip => "Messages and chat related to your party",
		2839	},
		2840	"c/death" => {
		2841	id => "death",
		2842	title => "Death",
		2843	reply => undef,
		2844	tooltip => "Reason for and more info about your most recent death",
		2845	},
		2846	"c/say" => $SAY_CHANNEL,
		2847	"c/chat" => $CHAT_CHANNEL,
		2848	);
		2849
		2850	sub cf::client::send_msg {
		2851	my ($self, $channel, $msg, $color, @extra) = @_;
		2852
		2853	$msg = $self->pl->expand_cfpod ($msg)
		2854	unless $color & cf::NDI_VERBATIM;
		2855
		2856	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2857
		2858	# check predefined channels, for the benefit of C
		2859	if ($CHANNEL{$channel}) {
		2860	$channel = $CHANNEL{$channel};
		2861
		2862	$self->ext_msg (channel_info => $channel);
		2863	$channel = $channel->{id};
		2864
		2865	} elsif (ref $channel) {
		2866	# send meta info to client, if not yet sent
		2867	unless (exists $self->{channel}{$channel->{id}}) {
		2868	$self->{channel}{$channel->{id}} = $channel;
		2869	$self->ext_msg (channel_info => $channel);
		2870	}
		2871
		2872	$channel = $channel->{id};
		2873	}
		2874
		2875	return unless @extra || length $msg;
		2876
		2877	# default colour, mask it out
		2878	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2879	if $color & cf::NDI_DEF;
		2880
		2881	my $pkt = "msg "
		2882	. $self->{json_coder}->encode (
		2883	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2884	);
		2885
		2886	# try lzf for large packets
		2887	$pkt = "lzf " . Compress::LZF::compress $pkt
		2888	if 1024 <= length $pkt and $self->{can_lzf};
		2889
		2890	# split very large packets
		2891	if (8192 < length $pkt and $self->{can_lzf}) {
		2892	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2893	$pkt = "frag";
		2894	}
		2895
		2896	$self->send_packet ($pkt);
		2897	}
		2898
		2899	=item $client->ext_msg ($type, @msg)
		2900
		2901	Sends an ext event to the client.
		2902
		2903	=cut
		2904
		2905	sub cf::client::ext_msg($$@) {
		2906	my ($self, $type, @msg) = @_;
		2907
		2908	if ($self->extcmd == 2) {
		2909	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2910	} elsif ($self->extcmd == 1) { # TODO: remove
		2911	push @msg, msgtype => "event_$type";
		2912	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2913	}
		2914	}
		2915
		2916	=item $client->ext_reply ($msgid, @msg)
		2917
		2918	Sends an ext reply to the client.
		2919
		2920	=cut
		2921
		2922	sub cf::client::ext_reply($$@) {
		2923	my ($self, $id, @msg) = @_;
		2924
		2925	if ($self->extcmd == 2) {
		2926	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2927	} elsif ($self->extcmd == 1) {
		2928	#TODO: version 1, remove
		2929	unshift @msg, msgtype => "reply", msgid => $id;
		2930	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2931	}
		2932	}
1978		2933
1979	=item $success = $client->query ($flags, "text", \&cb)	2934	=item $success = $client->query ($flags, "text", \&cb)
1980		2935
1981	Queues a query to the client, calling the given callback with	2936	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2937	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2938	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		2939
1985	Queries can fail, so check the return code. Or don't, as queries will become	2940	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	2941	become reliable at some point in the future.
1987		2942
1988	=cut	2943	=cut
1989		2944
1990	sub cf::client::query {	2945	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2946	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2954	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2955	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2956
2002	$self->send_packet ($self->{query_queue}[0][0])	2957	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2958	if @{ $self->{query_queue} } == 1;
		2959
		2960	1
2004	}	2961	}
2005		2962
2006	cf::client->attach (	2963	cf::client->attach (
		2964	on_connect => sub {
		2965	my ($ns) = @_;
		2966
		2967	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2968	},
2007	on_reply => sub {	2969	on_reply => sub {
2008	my ($ns, $msg) = @_;	2970	my ($ns, $msg) = @_;
2009		2971
2010	# this weird shuffling is so that direct followup queries	2972	# this weird shuffling is so that direct followup queries
2011	# get handled first	2973	# get handled first
…		…
2023	} else {	2985	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2986	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	2987	}
2026	}	2988	}
2027	},	2989	},
		2990	on_exticmd => sub {
		2991	my ($ns, $buf) = @_;
		2992
		2993	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2994
		2995	if (ref $msg) {
		2996	my ($type, $reply, @payload) =
		2997	"ARRAY" eq ref $msg
		2998	? @$msg
		2999	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3000
		3001	my @reply;
		3002
		3003	if (my $cb = $EXTICMD{$type}) {
		3004	@reply = $cb->($ns, @payload);
		3005	}
		3006
		3007	$ns->ext_reply ($reply, @reply)
		3008	if $reply;
		3009
		3010	} else {
		3011	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3012	}
		3013
		3014	cf::override;
		3015	},
2028	);	3016	);
2029		3017
2030	=item $client->async (\&cb)	3018	=item $client->async (\&cb)
2031		3019
2032	Create a new coroutine, running the specified callback. The coroutine will	3020	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073	our $safe = new Safe "safe";	3061	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3062	our $safe_hole = new Safe::Hole;
2075		3063
2076	$SIG{FPE} = 'IGNORE';	3064	$SIG{FPE} = 'IGNORE';
2077		3065
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3066	$safe->permit_only (Opcode::opset qw(
		3067	:base_core :base_mem :base_orig :base_math
		3068	grepstart grepwhile mapstart mapwhile
		3069	sort time
		3070	));
2079		3071
2080	# here we export the classes and methods available to script code	3072	# here we export the classes and methods available to script code
2081		3073
2082	=pod	3074	=pod
2083		3075
2084	The following fucntions and emthods are available within a safe environment:	3076	The following functions and methods are available within a safe environment:
2085		3077
2086	cf::object contr pay_amount pay_player map	3078	cf::object
		3079	contr pay_amount pay_player map x y force_find force_add destroy
		3080	insert remove name archname title slaying race decrease split
		3081	value
		3082
2087	cf::object::player player	3083	cf::object::player
2088	cf::player peaceful	3084	player
2089	cf::map trigger	3085
		3086	cf::player
		3087	peaceful
		3088
		3089	cf::map
		3090	trigger
2090		3091
2091	=cut	3092	=cut
2092		3093
2093	for (	3094	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3095	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3096	insert remove inv nrof name archname title slaying race
		3097	decrease split destroy change_exp value msg lore send_msg)],
2095	["cf::object::player" => qw(player)],	3098	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3099	["cf::player" => qw(peaceful send_msg)],
2097	["cf::map" => qw(trigger)],	3100	["cf::map" => qw(trigger)],
2098	) {	3101	) {
2099	no strict 'refs';	3102	no strict 'refs';
2100	my ($pkg, @funs) = @$_;	3103	my ($pkg, @funs) = @$_;
2101	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3104	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2118	my ($code, %vars) = @_;	3121	my ($code, %vars) = @_;
2119		3122
2120	my $qcode = $code;	3123	my $qcode = $code;
2121	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3124	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2122	$qcode =~ s/\n/\\n/g;	3125	$qcode =~ s/\n/\\n/g;
		3126
		3127	%vars = (_dummy => 0) unless %vars;
2123		3128
2124	local $_;	3129	local $_;
2125	local @safe::cf::_safe_eval_args = values %vars;	3130	local @safe::cf::_safe_eval_args = values %vars;
2126		3131
2127	my $eval =	3132	my $eval =
…		…
2170	=back	3175	=back
2171		3176
2172	=cut	3177	=cut
2173		3178
2174	#############################################################################	3179	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	3180	# the server's init and main functions
2284		3181
		3182	sub load_facedata($) {
		3183	my ($path) = @_;
		3184
		3185	# HACK to clear player env face cache, we need some signal framework
		3186	# for this (global event?)
		3187	%ext::player_env::MUSIC_FACE_CACHE = ();
		3188
		3189	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3190
		3191	warn "loading facedata from $path\n";
		3192
		3193	my $facedata;
		3194	0 < aio_load $path, $facedata
		3195	or die "$path: $!";
		3196
		3197	$facedata = Coro::Storable::thaw $facedata;
		3198
		3199	$facedata->{version} == 2
		3200	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3201
		3202	# patch in the exptable
		3203	$facedata->{resource}{"res/exp_table"} = {
		3204	type => FT_RSRC,
		3205	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3206	};
		3207	cf::cede_to_tick;
		3208
		3209	{
		3210	my $faces = $facedata->{faceinfo};
		3211
		3212	while (my ($face, $info) = each %$faces) {
		3213	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3214
		3215	cf::face::set_visibility $idx, $info->{visibility};
		3216	cf::face::set_magicmap $idx, $info->{magicmap};
		3217	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3218	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3219
		3220	cf::cede_to_tick;
		3221	}
		3222
		3223	while (my ($face, $info) = each %$faces) {
		3224	next unless $info->{smooth};
		3225
		3226	my $idx = cf::face::find $face
		3227	or next;
		3228
		3229	if (my $smooth = cf::face::find $info->{smooth}) {
		3230	cf::face::set_smooth $idx, $smooth;
		3231	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3232	} else {
		3233	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3234	}
		3235
		3236	cf::cede_to_tick;
		3237	}
		3238	}
		3239
		3240	{
		3241	my $anims = $facedata->{animinfo};
		3242
		3243	while (my ($anim, $info) = each %$anims) {
		3244	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3245	cf::cede_to_tick;
		3246	}
		3247
		3248	cf::anim::invalidate_all; # d'oh
		3249	}
		3250
		3251	{
		3252	# TODO: for gcfclient pleasure, we should give resources
		3253	# that gcfclient doesn't grok a >10000 face index.
		3254	my $res = $facedata->{resource};
		3255
		3256	while (my ($name, $info) = each %$res) {
		3257	if (defined $info->{type}) {
		3258	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3259	my $data;
		3260
		3261	if ($info->{type} & 1) {
		3262	# prepend meta info
		3263
		3264	my $meta = $enc->encode ({
		3265	name => $name,
		3266	%{ $info->{meta} || {} },
		3267	});
		3268
		3269	$data = pack "(w/a*)*", $meta, $info->{data};
		3270	} else {
		3271	$data = $info->{data};
		3272	}
		3273
		3274	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3275	cf::face::set_type $idx, $info->{type};
		3276	} else {
		3277	$RESOURCE{$name} = $info;
		3278	}
		3279
		3280	cf::cede_to_tick;
		3281	}
		3282	}
		3283
		3284	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3285
		3286	1
		3287	}
		3288
		3289	cf::global->attach (on_resource_update => sub {
		3290	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3291	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3292
		3293	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3294	my $sound = $soundconf->{compat}[$_]
		3295	or next;
		3296
		3297	my $face = cf::face::find "sound/$sound->[1]";
		3298	cf::sound::set $sound->[0] => $face;
		3299	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3300	}
		3301
		3302	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3303	my $face = cf::face::find "sound/$v";
		3304	cf::sound::set $k => $face;
		3305	}
		3306	}
		3307	});
		3308
		3309	register_exticmd fx_want => sub {
		3310	my ($ns, $want) = @_;
		3311
		3312	while (my ($k, $v) = each %$want) {
		3313	$ns->fx_want ($k, $v);
		3314	}
		3315	};
		3316
2285	sub load_resources {	3317	sub load_resource_file($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3318	my $guard = lock_acquire "load_resource_file";
		3319
		3320	my $status = load_resource_file_ $_[0];
		3321	get_slot 0.1, 100;
		3322	cf::arch::commit_load;
		3323
		3324	$status
		3325	}
		3326
		3327	sub reload_regions {
		3328	# HACK to clear player env face cache, we need some signal framework
		3329	# for this (global event?)
		3330	%ext::player_env::MUSIC_FACE_CACHE = ();
		3331
		3332	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	3333	or die "unable to load regions file\n";
2288	}
2289		3334
2290	sub cfg_load {	3335	for (cf::region::list) {
		3336	$_->{match} = qr/$_->{match}/
		3337	if exists $_->{match};
		3338	}
		3339	}
		3340
		3341	sub reload_facedata {
		3342	load_facedata "$DATADIR/facedata"
		3343	or die "unable to load facedata\n";
		3344	}
		3345
		3346	sub reload_archetypes {
		3347	load_resource_file "$DATADIR/archetypes"
		3348	or die "unable to load archetypes\n";
		3349	}
		3350
		3351	sub reload_treasures {
		3352	load_resource_file "$DATADIR/treasures"
		3353	or die "unable to load treasurelists\n";
		3354	}
		3355
		3356	sub reload_resources {
		3357	warn "reloading resource files...\n";
		3358
		3359	reload_facedata;
		3360	reload_archetypes;
		3361	reload_regions;
		3362	reload_treasures;
		3363
		3364	warn "finished reloading resource files\n";
		3365	}
		3366
		3367	sub reload_config {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	3368	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	3369	or return;
2293		3370
2294	local $/;	3371	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	3372	*CFG = YAML::Load <$fh>;
2296		3373
2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3374	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2298		3375
2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3376	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3377	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2306	};	3383	};
2307	warn $@ if $@;	3384	warn $@ if $@;
2308	}	3385	}
2309	}	3386	}
2310		3387
2311	sub init {	3388	sub pidfile() {
2312	load_resources;	3389	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3390	or die "$PIDFILE: $!";
		3391	flock $fh, &Fcntl::LOCK_EX
		3392	or die "$PIDFILE: flock: $!";
		3393	$fh
		3394	}
		3395
		3396	# make sure only one server instance is running at any one time
		3397	sub atomic {
		3398	my $fh = pidfile;
		3399
		3400	my $pid = <$fh>;
		3401	kill 9, $pid if $pid > 0;
		3402
		3403	seek $fh, 0, 0;
		3404	print $fh $$;
		3405	}
		3406
		3407	sub main_loop {
		3408	warn "EV::loop starting\n";
		3409	if (1) {
		3410	EV::loop;
		3411	}
		3412	warn "EV::loop returned\n";
		3413	goto &main_loop unless $REALLY_UNLOOP;
2313	}	3414	}
2314		3415
2315	sub main {	3416	sub main {
		3417	cf::init_globals; # initialise logging
		3418
		3419	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3420	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3421	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3422	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3423
		3424	cf::init_experience;
		3425	cf::init_anim;
		3426	cf::init_attackmess;
		3427	cf::init_dynamic;
		3428
		3429	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3430
2316	# we must not ever block the main coroutine	3431	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	3432	local $Coro::idle = sub {
2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3433	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2319	(async {	3434	(async {
2320	Event::one_event;	3435	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3436	EV::loop EV::LOOP_ONESHOT;
2321	})->prio (Coro::PRIO_MAX);	3437	})->prio (Coro::PRIO_MAX);
2322	};	3438	};
2323		3439
2324	cfg_load;	3440	evthread_start IO::AIO::poll_fileno;
2325	db_load;	3441
		3442	cf::sync_job {
		3443	reload_resources;
		3444	reload_config;
		3445	db_init;
		3446
		3447	cf::load_settings;
		3448	cf::load_materials;
		3449	cf::init_uuid;
		3450	cf::init_signals;
		3451	cf::init_commands;
		3452	cf::init_skills;
		3453
		3454	cf::init_beforeplay;
		3455
		3456	atomic;
		3457
2326	load_extensions;	3458	load_extensions;
2327		3459
2328	$TICK_WATCHER->start;	3460	utime time, time, $RUNTIMEFILE;
2329	Event::loop;	3461
		3462	# no (long-running) fork's whatsoever before this point(!)
		3463	use POSIX ();
		3464	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3465
		3466	(pop @POST_INIT)->(0) while @POST_INIT;
		3467	};
		3468
		3469	main_loop;
2330	}	3470	}
2331		3471
2332	#############################################################################	3472	#############################################################################
2333	# initialisation and cleanup	3473	# initialisation and cleanup
2334		3474
2335	# install some emergency cleanup handlers	3475	# install some emergency cleanup handlers
2336	BEGIN {	3476	BEGIN {
		3477	our %SIGWATCHER = ();
2337	for my $signal (qw(INT HUP TERM)) {	3478	for my $signal (qw(INT HUP TERM)) {
2338	Event->signal (	3479	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2339	reentrant => 0,
2340	data => WF_AUTOCANCEL,
2341	signal => $signal,
2342	prio => 0,
2343	cb => sub {
2344	cf::cleanup "SIG$signal";	3480	cf::cleanup "SIG$signal";
2345	},
2346	);	3481	};
		3482	}
		3483	}
		3484
		3485	sub write_runtime_sync {
		3486	# first touch the runtime file to show we are still running:
		3487	# the fsync below can take a very very long time.
		3488
		3489	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3490
		3491	my $guard = cf::lock_acquire "write_runtime";
		3492
		3493	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3494	or return;
		3495
		3496	my $value = $cf::RUNTIME + 90 + 10;
		3497	# 10 is the runtime save interval, for a monotonic clock
		3498	# 60 allows for the watchdog to kill the server.
		3499
		3500	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3501	and return;
		3502
		3503	# always fsync - this file is important
		3504	aio_fsync $fh
		3505	and return;
		3506
		3507	# touch it again to show we are up-to-date
		3508	aio_utime $fh, undef, undef;
		3509
		3510	close $fh
		3511	or return;
		3512
		3513	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3514	and return;
		3515
		3516	warn "runtime file written.\n";
		3517
2347	}	3518	1
		3519	}
		3520
		3521	our $uuid_lock;
		3522	our $uuid_skip;
		3523
		3524	sub write_uuid_sync($) {
		3525	$uuid_skip ||= $_[0];
		3526
		3527	return if $uuid_lock;
		3528	local $uuid_lock = 1;
		3529
		3530	my $uuid = "$LOCALDIR/uuid";
		3531
		3532	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3533	or return;
		3534
		3535	my $value = uuid_seq uuid_cur;
		3536
		3537	unless ($value) {
		3538	warn "cowardly refusing to write zero uuid value!\n";
		3539	return;
		3540	}
		3541
		3542	my $value = uuid_str $value + $uuid_skip;
		3543	$uuid_skip = 0;
		3544
		3545	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3546	and return;
		3547
		3548	# always fsync - this file is important
		3549	aio_fsync $fh
		3550	and return;
		3551
		3552	close $fh
		3553	or return;
		3554
		3555	aio_rename "$uuid~", $uuid
		3556	and return;
		3557
		3558	warn "uuid file written ($value).\n";
		3559
		3560	1
		3561
		3562	}
		3563
		3564	sub write_uuid($$) {
		3565	my ($skip, $sync) = @_;
		3566
		3567	$sync ? write_uuid_sync $skip
		3568	: async { write_uuid_sync $skip };
2348	}	3569	}
2349		3570
2350	sub emergency_save() {	3571	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3572	my $freeze_guard = cf::freeze_mainloop;
2352		3573
2353	warn "enter emergency perl save\n";	3574	warn "emergency_perl_save: enter\n";
2354		3575
2355	cf::sync_job {	3576	cf::sync_job {
		3577	# this is a trade-off: we want to be very quick here, so
		3578	# save all maps without fsync, and later call a global sync
		3579	# (which in turn might be very very slow)
		3580	local $USE_FSYNC = 0;
		3581
2356	# use a peculiar iteration method to avoid tripping on perl	3582	# use a peculiar iteration method to avoid tripping on perl
2357	# refcount bugs in for. also avoids problems with players	3583	# refcount bugs in for. also avoids problems with players
2358	# and maps saved/destroyed asynchronously.	3584	# and maps saved/destroyed asynchronously.
2359	warn "begin emergency player save\n";	3585	warn "emergency_perl_save: begin player save\n";
2360	for my $login (keys %cf::PLAYER) {	3586	for my $login (keys %cf::PLAYER) {
2361	my $pl = $cf::PLAYER{$login} or next;	3587	my $pl = $cf::PLAYER{$login} or next;
2362	$pl->valid or next;	3588	$pl->valid or next;
		3589	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2363	$pl->save;	3590	$pl->save;
2364	}	3591	}
2365	warn "end emergency player save\n";	3592	warn "emergency_perl_save: end player save\n";
2366		3593
2367	warn "begin emergency map save\n";	3594	warn "emergency_perl_save: begin map save\n";
2368	for my $path (keys %cf::MAP) {	3595	for my $path (keys %cf::MAP) {
2369	my $map = $cf::MAP{$path} or next;	3596	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3597	$map->valid or next;
2371	$map->save;	3598	$map->save;
2372	}	3599	}
2373	warn "end emergency map save\n";	3600	warn "emergency_perl_save: end map save\n";
		3601
		3602	warn "emergency_perl_save: begin database checkpoint\n";
		3603	BDB::db_env_txn_checkpoint $DB_ENV;
		3604	warn "emergency_perl_save: end database checkpoint\n";
		3605
		3606	warn "emergency_perl_save: begin write uuid\n";
		3607	write_uuid_sync 1;
		3608	warn "emergency_perl_save: end write uuid\n";
2374	};	3609	};
2375		3610
		3611	warn "emergency_perl_save: starting sync()\n";
		3612	IO::AIO::aio_sync sub {
		3613	warn "emergency_perl_save: finished sync()\n";
		3614	};
		3615
2376	warn "leave emergency perl save\n";	3616	warn "emergency_perl_save: leave\n";
2377	}	3617	}
2378		3618
		3619	sub post_cleanup {
		3620	my ($make_core) = @_;
		3621
		3622	warn Carp::longmess "post_cleanup backtrace"
		3623	if $make_core;
		3624
		3625	my $fh = pidfile;
		3626	unlink $PIDFILE if <$fh> == $$;
		3627	}
		3628
		3629	# a safer delete_package, copied from Symbol
		3630	sub clear_package($) {
		3631	my $pkg = shift;
		3632
		3633	# expand to full symbol table name if needed
		3634	unless ($pkg =~ /^main::.*::$/) {
		3635	$pkg = "main$pkg" if $pkg =~ /^::/;
		3636	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3637	$pkg .= '::' unless $pkg =~ /::$/;
		3638	}
		3639
		3640	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3641	my $stem_symtab = *{$stem}{HASH};
		3642
		3643	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3644	or return;
		3645
		3646	# clear all symbols
		3647	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3648	for my $name (keys %$leaf_symtab) {
		3649	_gv_clear *{"$pkg$name"};
		3650	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3651	}
		3652	warn "cleared package $pkg\n";#d#
		3653	}
		3654
2379	sub reload() {	3655	sub do_reload_perl() {
2380	# can/must only be called in main	3656	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3657	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	3658	warn "can only reload from main coroutine";
2383	return;	3659	return;
2384	}	3660	}
2385		3661
		3662	return if $RELOAD++;
		3663
		3664	my $t1 = EV::time;
		3665
		3666	while ($RELOAD) {
2386	warn "reloading...";	3667	warn "reloading...";
2387		3668
2388	warn "cancelling server ticker";	3669	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3670
		3671	cf::sync_job {
		3672	cf::write_runtime_sync; # external watchdog should not bark
2391	cf::emergency_save;	3673	cf::emergency_save;
		3674	cf::write_runtime_sync; # external watchdog should not bark
2392		3675
2393	eval {	3676	warn "syncing database to disk";
		3677	BDB::db_env_txn_checkpoint $DB_ENV;
		3678
2394	# if anything goes wrong in here, we should simply crash as we already saved	3679	# if anything goes wrong in here, we should simply crash as we already saved
2395		3680
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398
2399	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}
2403
2404	warn "flushing outstanding aio requests";	3681	warn "flushing outstanding aio requests";
2405	for (;;) {	3682	while (IO::AIO::nreqs || BDB::nreqs) {
2406	IO::AIO::flush;	3683	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2407	Coro::cede;
2408	last unless IO::AIO::nreqs;
2409	warn "iterate...";
2410	}
2411
2412	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();
2415
2416	warn "removing commands";
2417	%COMMAND = ();
2418
2419	warn "removing ext commands";
2420	%EXTCMD = ();
2421
2422	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";
2425
2426	if (my $cb = $pkg->can ("unload")) {
2427	eval {
2428	$cb->($pkg);
2429	1
2430	} or warn "$pkg unloaded, but with errors: $@";
2431	}	3684	}
2432		3685
2433	warn "... nuking $pkg";	3686	warn "cancelling all extension coros";
2434	Symbol::delete_package $pkg;	3687	$_->cancel for values %EXT_CORO;
2435	}	3688	%EXT_CORO = ();
2436		3689
2437	warn "unloading all perl modules loaded from $LIBDIR";	3690	warn "removing commands";
2438	while (my ($k, $v) = each %INC) {	3691	%COMMAND = ();
2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2440		3692
		3693	warn "removing ext/exti commands";
		3694	%EXTCMD = ();
		3695	%EXTICMD = ();
		3696
		3697	warn "unloading/nuking all extensions";
		3698	for my $pkg (@EXTS) {
2441	warn "... unloading $k";	3699	warn "... unloading $pkg";
2442	delete $INC{$k};
2443		3700
2444	$k =~ s/\.pm$//;
2445	$k =~ s/\//::/g;
2446
2447	if (my $cb = $k->can ("unload_module")) {	3701	if (my $cb = $pkg->can ("unload")) {
		3702	eval {
2448	$cb->();	3703	$cb->($pkg);
		3704	1
		3705	} or warn "$pkg unloaded, but with errors: $@";
		3706	}
		3707
		3708	warn "... clearing $pkg";
		3709	clear_package $pkg;
2449	}	3710	}
2450		3711
2451	Symbol::delete_package $k;	3712	warn "unloading all perl modules loaded from $LIBDIR";
		3713	while (my ($k, $v) = each %INC) {
		3714	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3715
		3716	warn "... unloading $k";
		3717	delete $INC{$k};
		3718
		3719	$k =~ s/\.pm$//;
		3720	$k =~ s/\//::/g;
		3721
		3722	if (my $cb = $k->can ("unload_module")) {
		3723	$cb->();
		3724	}
		3725
		3726	clear_package $k;
2452	}	3727	}
2453		3728
2454	warn "getting rid of safe::, as good as possible";	3729	warn "getting rid of safe::, as good as possible";
2455	Symbol::delete_package "safe::$_"	3730	clear_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3731	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		3732
2458	warn "unloading cf.pm \"a bit\"";	3733	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3734	delete $INC{"cf.pm"};
		3735	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2460		3736
2461	# don't, removes xs symbols, too,	3737	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3738	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3739	#clear_package __PACKAGE__;
2464		3740
2465	warn "unload completed, starting to reload now";	3741	warn "unload completed, starting to reload now";
2466		3742
2467	warn "reloading cf.pm";	3743	warn "reloading cf.pm";
2468	require cf;	3744	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3745	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2470		3746
2471	warn "loading config and database again";	3747	warn "loading config and database again";
2472	cf::cfg_load;	3748	cf::reload_config;
2473	cf::db_load;
2474		3749
2475	warn "loading extensions";	3750	warn "loading extensions";
2476	cf::load_extensions;	3751	cf::load_extensions;
2477		3752
		3753	if ($REATTACH_ON_RELOAD) {
2478	warn "reattaching attachments to objects/players";	3754	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3755	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3756	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3757	reattach $_ for values %MAP;
		3758	warn "reattaching attachments to players";
		3759	reattach $_ for values %PLAYER;
		3760	}
2482		3761
2483	warn "loading reloadable resources";	3762	warn "running post_init jobs";
2484	load_resources;	3763	(pop @POST_INIT)->(1) while @POST_INIT;
2485		3764
2486	warn "restarting server ticker";	3765	warn "leaving sync_job";
2487		3766
2488	$TICK_WATCHER->start;	3767	1
		3768	} or do {
		3769	warn $@;
		3770	cf::cleanup "error while reloading, exiting.";
		3771	};
		3772
		3773	warn "reloaded";
		3774	--$RELOAD;
		3775	}
		3776
		3777	$t1 = EV::time - $t1;
		3778	warn "reload completed in ${t1}s\n";
		3779	};
		3780
		3781	our $RELOAD_WATCHER; # used only during reload
		3782
		3783	sub reload_perl() {
		3784	# doing reload synchronously and two reloads happen back-to-back,
		3785	# coro crashes during coro_state_free->destroy here.
		3786
		3787	$RELOAD_WATCHER ||= cf::async {
		3788	Coro::AIO::aio_wait cache_extensions;
		3789
		3790	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3791	do_reload_perl;
		3792	undef $RELOAD_WATCHER;
		3793	};
2489	};	3794	};
2490		3795	}
2491	if ($@) {
2492	warn $@;
2493	warn "error while reloading, exiting.";
2494	exit 1;
2495	}
2496
2497	warn "reloaded";
2498	};
2499
2500	our $RELOAD_WATCHER; # used only during reload
2501		3796
2502	register_command "reload" => sub {	3797	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3798	my ($who, $arg) = @_;
2504		3799
2505	if ($who->flag (FLAG_WIZ)) {	3800	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3801	$who->message ("reloading server.");
2507		3802	async {
2508	# doing reload synchronously and two reloads happen back-to-back,	3803	$Coro::current->{desc} = "perl_reload";
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;	3804	reload_perl;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);	3805	};
2520	}	3806	}
2521	};	3807	};
2522		3808
2523	unshift @INC, $LIBDIR;	3809	unshift @INC, $LIBDIR;
2524		3810
2525	my $bug_warning = 0;	3811	my $bug_warning = 0;
2526		3812
2527	$TICK_WATCHER = Event->timer (	3813	our @WAIT_FOR_TICK;
2528	reentrant => 0,	3814	our @WAIT_FOR_TICK_BEGIN;
2529	parked => 1,	3815
2530	prio => 0,	3816	sub wait_for_tick {
2531	at => $NEXT_TICK || $TICK,	3817	return if tick_inhibit || $Coro::current == $Coro::main;
2532	data => WF_AUTOCANCEL,	3818
2533	cb => sub {	3819	my $signal = new Coro::Signal;
		3820	push @WAIT_FOR_TICK, $signal;
		3821	$signal->wait;
		3822	}
		3823
		3824	sub wait_for_tick_begin {
		3825	return if tick_inhibit || $Coro::current == $Coro::main;
		3826
		3827	my $signal = new Coro::Signal;
		3828	push @WAIT_FOR_TICK_BEGIN, $signal;
		3829	$signal->wait;
		3830	}
		3831
		3832	sub tick {
2534	if ($Coro::current != $Coro::main) {	3833	if ($Coro::current != $Coro::main) {
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3834	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3835	unless ++$bug_warning > 10;
2537	return;	3836	return;
2538	}	3837	}
2539		3838
2540	$NOW = Event::time;
2541
2542	cf::server_tick; # one server iteration	3839	cf::server_tick; # one server iteration
2543	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;
2545		3840
2546	$WAIT_FOR_TICK->broadcast;	3841	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3842	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3843	Coro::async_pool {
		3844	$Coro::current->{desc} = "runtime saver";
		3845	write_runtime_sync
		3846	or warn "ERROR: unable to write runtime file: $!";
		3847	};
		3848	}
2548		3849
2549	Event::sweep;	3850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2550	Coro::cede_notself;	3851	$sig->send;
		3852	}
		3853	while (my $sig = shift @WAIT_FOR_TICK) {
		3854	$sig->send;
		3855	}
		3856
		3857	$LOAD = ($NOW - $TICK_START) / $TICK;
		3858	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3859
		3860	if (0) {
		3861	if ($NEXT_TICK) {
		3862	my $jitter = $TICK_START - $NEXT_TICK;
		3863	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3864	warn "jitter $JITTER\n";#d#
2551		3865	}
2552	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#
2554
2555	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2557
2558	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;
2560	},	3866	}
2561	);	3867	}
2562		3868
2563	{	3869	{
2564	BDB::max_poll_time $TICK * 0.1;	3870	# configure BDB
2565	$BDB_POLL_WATCHER = Event->io (	3871
2566	reentrant => 0,
2567	fd => BDB::poll_fileno,
2568	poll => 'r',
2569	prio => 0,
2570	data => WF_AUTOCANCEL,
2571	cb => \&BDB::poll_cb,
2572	);
2573	BDB::min_parallel 8;	3872	BDB::min_parallel 8;
2574		3873	BDB::max_poll_reqs $TICK * 0.1;
2575	BDB::set_sync_prepare {	3874	$AnyEvent::BDB::WATCHER->priority (1);
2576	my $status;
2577	my $current = $Coro::current;
2578	(
2579	sub {
2580	$status = $!;
2581	$current->ready; undef $current;
2582	},
2583	sub {
2584	Coro::schedule while defined $current;
2585	$! = $status;
2586	},
2587	)
2588	};
2589		3875
2590	unless ($DB_ENV) {	3876	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3877	$DB_ENV = BDB::db_env_create;
		3878	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3879	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3880	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3881	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3882	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2592		3883
2593	cf::sync_job {	3884	cf::sync_job {
		3885	eval {
2594	BDB::db_env_open	3886	BDB::db_env_open
2595	$DB_ENV,	3887	$DB_ENV,
2596	$BDB_ENV_DIR,	3888	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3889	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3890	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3891	0666;
2600		3892
2601	cf::cleanup "$!" if $!;	3893	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3894	};
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3895
2604	$DB_ENV->set_lk_detect;	3896	cf::cleanup "db_env_open(db): $@" if $@;
2605	};	3897	};
2606	}	3898	}
		3899
		3900	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3901	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3902	};
		3903	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3904	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3905	};
		3906	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3907	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3908	};
2607	}	3909	}
2608		3910
2609	{	3911	{
		3912	# configure IO::AIO
		3913
2610	IO::AIO::min_parallel 8;	3914	IO::AIO::min_parallel 8;
2611
2612	undef $Coro::AIO::WATCHER;
2613	IO::AIO::max_poll_time $TICK * 0.1;	3915	IO::AIO::max_poll_time $TICK * 0.1;
2614	$AIO_POLL_WATCHER = Event->io (	3916	undef $AnyEvent::AIO::WATCHER;
2615	reentrant => 0,
2616	fd => IO::AIO::poll_fileno,
2617	poll => 'r',
2618	prio => 6,
2619	data => WF_AUTOCANCEL,
2620	cb => \&IO::AIO::poll_cb,
2621	);
2622	}	3917	}
2623		3918
2624	$WRITE_RUNTIME_WATCHER = Event->timer (	3919	my $_log_backtrace;
2625	reentrant => 0,	3920
2626	data => WF_AUTOCANCEL,	3921	sub _log_backtrace {
2627	after => 1,	3922	my ($msg, @addr) = @_;
2628	interval => 10,	3923
2629	prio => 6, # keep it lowest so it acts like a watchdog	3924	$msg =~ s/\n//;
2630	cb => Coro::unblock_sub {	3925
2631	write_runtime	3926	# limit the # of concurrent backtraces
2632	or warn "ERROR: unable to write runtime file: $!";	3927	if ($_log_backtrace < 2) {
		3928	++$_log_backtrace;
		3929	my $perl_bt = Carp::longmess $msg;
		3930	async {
		3931	$Coro::current->{desc} = "abt $msg";
		3932
		3933	my @bt = fork_call {
		3934	@addr = map { sprintf "%x", $_ } @addr;
		3935	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3936	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3937	or die "addr2line: $!";
		3938
		3939	my @funcs;
		3940	my @res = <$fh>;
		3941	chomp for @res;
		3942	while (@res) {
		3943	my ($func, $line) = splice @res, 0, 2, ();
		3944	push @funcs, "[$func] $line";
		3945	}
		3946
		3947	@funcs
		3948	};
		3949
		3950	LOG llevInfo, "[ABT] $perl_bt\n";
		3951	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3952	LOG llevInfo, "[ABT] $_\n" for @bt;
		3953	--$_log_backtrace;
		3954	};
		3955	} else {
		3956	LOG llevInfo, "[ABT] $msg\n";
		3957	LOG llevInfo, "[ABT] [suppressed]\n";
2633	},	3958	}
2634	);	3959	}
		3960
		3961	# load additional modules
		3962	require "cf/$_.pm" for @EXTRA_MODULES;
2635		3963
2636	END { cf::emergency_save }	3964	END { cf::emergency_save }
2637		3965
2638	1	3966	1
2639		3967

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