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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.195 by root, Fri Jan 26 20:59:57 2007 UTC vs.
Revision 1.480 by root, Thu Oct 8 05:09:43 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		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 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;	56	use Digest::MD5;
22	use Fcntl;	57	use Fcntl;
		58	use YAML ();
23	use IO::AIO 2.32 ();	59	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
26		63
27	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" };
28		79
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		81
36	our %COMMAND = ();	82	our %COMMAND = ();
37	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
38		84
39	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
43		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	92	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
46		95
47	our $TICK = MAX_TIME * 1e-6;	96	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	97	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	98	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	99	our $PODDIR = "$DATADIR/pod";
		100	our $MAPDIR = "$DATADIR/" . mapdir;
		101	our $LOCALDIR = localdir;
		102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		105	our $RANDOMDIR = "$LOCALDIR/random";
		106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
		111
		112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	114	our $NEXT_TICK;
52	our $NOW;	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
		119	our $BDB_TRICKLE_WATCHER;
		120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod mapscript);
53		123
54	our %CFG;	124	our %CFG;
55		125
56	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
58		129
59	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	132	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		133
67	# used to convert map paths into valid unix filenames by replacing / by ∕	134	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
		146
70	binmode STDOUT;	147	binmode STDOUT;
71	binmode STDERR;	148	binmode STDERR;
72		149
73	# read virtual server time, if available	150	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
78	}	155	}
79		156
80	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	158
82	mkdir cf::localdir . "/" . cf::tmpdir;	159	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		161
86	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
		163
		164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
		173
		174	# this is decidedly evil
		175	$REFLECT{object}{flags} = [grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"}];
87		176
88	#############################################################################	177	#############################################################################
89		178
90	=head2 GLOBAL VARIABLES	179	=head2 GLOBAL VARIABLES
91		180
…		…
98	=item $cf::RUNTIME	187	=item $cf::RUNTIME
99		188
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	189	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	190	every server tick.
102		191
103	=item $cf::LIBDIR	192	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		193	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		194	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		195
105	The perl library directory, where extensions and cf-specific modules can	196	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	197	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		198	unique-items directory, player file directory, random maps directory and
		199	database environment.
107		200
108	=item $cf::NOW	201	=item $cf::NOW
109		202
110	The time of the last (current) server tick.	203	The time of the last (current) server tick.
111		204
112	=item $cf::TICK	205	=item $cf::TICK
113		206
114	The interval between server ticks, in seconds.	207	The interval between server ticks, in seconds.
115		208
		209	=item $cf::LOADAVG
		210
		211	The current CPU load on the server (alpha-smoothed), as a value between 0
		212	(none) and 1 (overloaded), indicating how much time is spent on processing
		213	objects per tick. Healthy values are < 0.5.
		214
		215	=item $cf::LOAD
		216
		217	The raw value load value from the last tick.
		218
116	=item %cf::CFG	219	=item %cf::CFG
117		220
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	221	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	222	from wherever your confdir points to.
120		223
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	224	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		225
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	226	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	227	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	228	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	229
		230	=item @cf::INVOKE_RESULTS
		231
		232	This array contains the results of the last C<invoke ()> call. When
		233	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		234	that call.
		235
		236	=item %cf::REFLECT
		237
		238	Contains, for each (C++) class name, a hash reference with information
		239	about object members (methods, scalars, arrays and flags) and other
		240	metadata, which is useful for introspection.
127		241
128	=back	242	=back
129		243
130	=cut	244	=cut
131		245
132	BEGIN {	246	$Coro::State::WARNHOOK = sub {
133	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	247	my $msg = join "", @_;
135	utf8::encode $msg;
136		248
137	$msg .= "\n"	249	$msg .= "\n"
138	unless $msg =~ /\n$/;	250	unless $msg =~ /\n$/;
139		251
		252	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		253
140	LOG llevError, $msg;	254	LOG llevError, $msg;
141	};	255	};
142	}	256
		257	$Coro::State::DIEHOOK = sub {
		258	return unless $^S eq 0; # "eq", not "=="
		259
		260	warn Carp::longmess $_[0];
		261
		262	if ($Coro::current == $Coro::main) {#d#
		263	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		264	return;#d#
		265	}#d#
		266
		267	# kill coroutine otherwise
		268	Coro::terminate
		269	};
143		270
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	271	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	272	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	273	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	274	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	275	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		276	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	277	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		278
151	# we bless all objects into (empty) derived classes to force a method lookup	279	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	280	# within the Safe compartment.
153	for my $pkg (qw(	281	for my $pkg (qw(
154	cf::global cf::attachable	282	cf::global cf::attachable
155	cf::object cf::object::player	283	cf::object cf::object::player
156	cf::client cf::player	284	cf::client cf::player
157	cf::arch cf::living	285	cf::arch cf::living
		286	cf::map cf::mapspace
158	cf::map cf::party cf::region	287	cf::party cf::region
159	)) {	288	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	289	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	290	}
163		291
164	$Event::DIED = sub {	292	$EV::DIED = sub {
165	warn "error in event callback: @_";	293	warn "error in event callback: @_";
166	};	294	};
		295
		296	#############################################################################
167		297
168	=head2 UTILITY FUNCTIONS	298	=head2 UTILITY FUNCTIONS
169		299
170	=over 4	300	=over 4
171		301
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	320	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	321	$d
192	} || "[unable to dump $_[0]: '$@']";	322	} || "[unable to dump $_[0]: '$@']";
193	}	323	}
194		324
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	325	=item $ref = cf::decode_json $json
198		326
199	Converts a JSON string into the corresponding perl data structure.	327	Converts a JSON string into the corresponding perl data structure.
200		328
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	329	=item $json = cf::encode_json $ref
209		330
210	Converts a perl data structure into its JSON representation.	331	Converts a perl data structure into its JSON representation.
211		332
212	=cut	333	=cut
213		334
214	sub to_json($) {	335	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	336
216	JSON::Syck::Dump $_[0]	337	sub encode_json($) { $json_coder->encode ($_[0]) }
		338	sub decode_json($) { $json_coder->decode ($_[0]) }
		339
		340	=item cf::post_init { BLOCK }
		341
		342	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		343	but I<before> the server starts ticking again.
		344
		345	The cdoeblock will have a single boolean argument to indicate whether this
		346	is a reload or not.
		347
		348	=cut
		349
		350	sub post_init(&) {
		351	push @POST_INIT, shift;
217	}	352	}
218		353
219	=item cf::lock_wait $string	354	=item cf::lock_wait $string
220		355
221	Wait until the given lock is available. See cf::lock_acquire.	356	Wait until the given lock is available. See cf::lock_acquire.
222		357
223	=item my $lock = cf::lock_acquire $string	358	=item my $lock = cf::lock_acquire $string
224		359
225	Wait until the given lock is available and then acquires it and returns	360	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	361	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	362	for example when the coroutine gets canceled), the lock is automatically
228	returned.	363	returned.
229		364
		365	Locks are *not* recursive, locking from the same coro twice results in a
		366	deadlocked coro.
		367
230	Lock names should begin with a unique identifier (for example, cf::map::find	368	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	369	uses map_find and cf::map::load uses map_load).
232		370
233	=cut	371	=item $locked = cf::lock_active $string
234		372
235	our %LOCK;	373	Return true if the lock is currently active, i.e. somebody has locked it.
		374
		375	=cut
		376
		377	our $LOCKS = new Coro::SemaphoreSet;
236		378
237	sub lock_wait($) {	379	sub lock_wait($) {
238	my ($key) = @_;	380	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	381	}
246		382
247	sub lock_acquire($) {	383	sub lock_acquire($) {
248	my ($key) = @_;	384	$LOCKS->guard ($_[0])
		385	}
249		386
250	# wait, to be sure we are not locked	387	sub lock_active($) {
251	lock_wait $key;	388	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	389	}
260		390
261	sub freeze_mainloop {	391	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	392	tick_inhibit_inc;
263		393
264	my $guard = Coro::guard {	394	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	395	}
266	$WRITE_RUNTIME_WATCHER->start;	396
		397	=item cf::periodic $interval, $cb
		398
		399	Like EV::periodic, but randomly selects a starting point so that the actions
		400	get spread over timer.
		401
		402	=cut
		403
		404	sub periodic($$) {
		405	my ($interval, $cb) = @_;
		406
		407	my $start = rand List::Util::min 180, $interval;
		408
		409	EV::periodic $start, $interval, 0, $cb
		410	}
		411
		412	=item cf::get_slot $time[, $priority[, $name]]
		413
		414	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		415	This call blocks and returns only when you have at least C<$time> seconds
		416	of cpu time till the next tick. The slot is only valid till the next cede.
		417
		418	The optional C<$name> can be used to identify the job to run. It might be
		419	used for statistical purposes and should identify the same time-class.
		420
		421	Useful for short background jobs.
		422
		423	=cut
		424
		425	our @SLOT_QUEUE;
		426	our $SLOT_QUEUE;
		427
		428	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		429	$SLOT_QUEUE = Coro::async {
		430	$Coro::current->desc ("timeslot manager");
		431
		432	my $signal = new Coro::Signal;
		433
		434	while () {
		435	next_job:
		436	my $avail = cf::till_tick;
		437	if ($avail > 0.01) {
		438	for (0 .. $#SLOT_QUEUE) {
		439	if ($SLOT_QUEUE[$_][0] < $avail) {
		440	my $job = splice @SLOT_QUEUE, $_, 1, ();
		441	$job->[2]->send;
		442	Coro::cede;
		443	goto next_job;
		444	}
		445	}
		446	}
		447
		448	if (@SLOT_QUEUE) {
		449	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		450	push @cf::WAIT_FOR_TICK, $signal;
		451	$signal->wait;
		452	} else {
		453	Coro::schedule;
		454	}
267	};	455	}
268	$WRITE_RUNTIME_WATCHER->stop;	456	};
269	$TICK_WATCHER->stop;	457
270	$guard	458	sub get_slot($;$$) {
		459	return if tick_inhibit || $Coro::current == $Coro::main;
		460
		461	my ($time, $pri, $name) = @_;
		462
		463	$time = $TICK * .6 if $time > $TICK * .6;
		464	my $sig = new Coro::Signal;
		465
		466	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		467	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		468	$SLOT_QUEUE->ready;
		469	$sig->wait;
271	}	470	}
272		471
273	=item cf::async { BLOCK }	472	=item cf::async { BLOCK }
274		473
275	Currently the same as Coro::async_pool, meaning you cannot use	474	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		479
281	BEGIN { *async = \&Coro::async_pool }	480	BEGIN { *async = \&Coro::async_pool }
282		481
283	=item cf::sync_job { BLOCK }	482	=item cf::sync_job { BLOCK }
284		483
285	The design of crossfire+ requires that the main coro ($Coro::main) is	484	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	485	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	486	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		487	acceptable.
288		488
289	If it must be done, put the blocking parts into C<sync_job>. This will run	489	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	490	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	491	server will be frozen during this time, so the block should either finish
292	fast or be very important.	492	fast or be very important.
…		…
295		495
296	sub sync_job(&) {	496	sub sync_job(&) {
297	my ($job) = @_;	497	my ($job) = @_;
298		498
299	if ($Coro::current == $Coro::main) {	499	if ($Coro::current == $Coro::main) {
		500	my $time = EV::time;
		501
300	# this is the main coro, too bad, we have to block	502	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	503	# till the operation succeeds, freezing the server :/
302		504
303	# TODO: use suspend/resume instead	505	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	506
305	my $freeze_guard = freeze_mainloop;	507	my $freeze_guard = freeze_mainloop;
306		508
307	my $busy = 1;	509	my $busy = 1;
308	my @res;	510	my @res;
309		511
310	(async {	512	(async {
		513	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	514	@res = eval { $job->() };
312	warn $@ if $@;	515	warn $@ if $@;
313	undef $busy;	516	undef $busy;
314	})->prio (Coro::PRIO_MAX);	517	})->prio (Coro::PRIO_MAX);
315		518
316	while ($busy) {	519	while ($busy) {
317	Coro::cede or Event::one_event;	520	if (Coro::nready) {
		521	Coro::cede_notself;
		522	} else {
		523	EV::loop EV::LOOP_ONESHOT;
318	}	524	}
		525	}
		526
		527	my $time = EV::time - $time;
		528
		529	$TICK_START += $time; # do not account sync jobs to server load
319		530
320	wantarray ? @res : $res[0]	531	wantarray ? @res : $res[0]
321	} else {	532	} else {
322	# we are in another coroutine, how wonderful, everything just works	533	# we are in another coroutine, how wonderful, everything just works
323		534
…		…
343	$EXT_CORO{$coro+0} = $coro;	554	$EXT_CORO{$coro+0} = $coro;
344		555
345	$coro	556	$coro
346	}	557	}
347		558
348	sub write_runtime {	559	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		560
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	561	Executes the given code block with the given arguments in a seperate
352	or return;	562	process, returning the results. Everything must be serialisable with
		563	Coro::Storable. May, of course, block. Note that the executed sub may
		564	never block itself or use any form of event handling.
353		565
354	my $value = $cf::RUNTIME + 90 + 10;	566	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		567
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	568	sub fork_call(&@) {
359	and return;	569	my ($cb, @args) = @_;
360		570
361	aio_fsync $fh	571	# we seemingly have to make a local copy of the whole thing,
362	and return;	572	# otherwise perl prematurely frees the stuff :/
		573	# TODO: investigate and fix (likely this will be rather laborious)
363		574
364	close $fh	575	my @res = Coro::Util::fork_eval {
365	or return;	576	reset_signals;
		577	&$cb
		578	}, @args;
366		579
367	aio_rename "$runtime~", $runtime	580	wantarray ? @res : $res[-1]
368	and return;	581	}
369		582
		583	=item $coin = coin_from_name $name
		584
		585	=cut
		586
		587	our %coin_alias = (
		588	"silver" => "silvercoin",
		589	"silvercoin" => "silvercoin",
		590	"silvercoins" => "silvercoin",
		591	"gold" => "goldcoin",
		592	"goldcoin" => "goldcoin",
		593	"goldcoins" => "goldcoin",
		594	"platinum" => "platinacoin",
		595	"platinumcoin" => "platinacoin",
		596	"platinumcoins" => "platinacoin",
		597	"platina" => "platinacoin",
		598	"platinacoin" => "platinacoin",
		599	"platinacoins" => "platinacoin",
		600	"royalty" => "royalty",
		601	"royalties" => "royalty",
		602	);
		603
		604	sub coin_from_name($) {
		605	$coin_alias{$_[0]}
		606	? cf::arch::find $coin_alias{$_[0]}
		607	: undef
		608	}
		609
		610	=item $value = cf::db_get $family => $key
		611
		612	Returns a single value from the environment database.
		613
		614	=item cf::db_put $family => $key => $value
		615
		616	Stores the given C<$value> in the family. It can currently store binary
		617	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		618
		619	=item $db = cf::db_table "name"
		620
		621	Create and/or open a new database table. The string must not be "db" and must be unique
		622	within each server.
		623
		624	=cut
		625
		626	sub db_table($) {
		627	my ($name) = @_;
		628	my $db = BDB::db_create $DB_ENV;
		629
		630	eval {
		631	$db->set_flags (BDB::CHKSUM);
		632
		633	utf8::encode $name;
		634	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		635	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		636	cf::cleanup "db_open(db): $!" if $!;
		637	};
		638	cf::cleanup "db_open(db): $@" if $@;
		639
		640	$db
		641	}
		642
		643	our $DB;
		644
		645	sub db_init {
		646	cf::sync_job {
		647	$DB ||= db_table "db";
		648	};
		649	}
		650
		651	sub db_get($$) {
		652	my $key = "$_[0]/$_[1]";
		653
		654	cf::sync_job {
		655	BDB::db_get $DB, undef, $key, my $data;
		656
		657	$! ? ()
		658	: $data
370	1	659	}
		660	}
		661
		662	sub db_put($$$) {
		663	BDB::dbreq_pri 4;
		664	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		665	}
		666
		667	=item cf::cache $id => [$paths...], $processversion => $process
		668
		669	Generic caching function that returns the value of the resource $id,
		670	caching and regenerating as required.
		671
		672	This function can block.
		673
		674	=cut
		675
		676	sub cache {
		677	my ($id, $src, $processversion, $process) = @_;
		678
		679	my $meta =
		680	join "\x00",
		681	$processversion,
		682	map {
		683	aio_stat $_
		684	and Carp::croak "$_: $!";
		685
		686	($_, (stat _)[7,9])
		687	} @$src;
		688
		689	my $dbmeta = db_get cache => "$id/meta";
		690	if ($dbmeta ne $meta) {
		691	# changed, we may need to process
		692
		693	my @data;
		694	my $md5;
		695
		696	for (0 .. $#$src) {
		697	0 <= aio_load $src->[$_], $data[$_]
		698	or Carp::croak "$src->[$_]: $!";
		699	}
		700
		701	# if processing is expensive, check
		702	# checksum first
		703	if (1) {
		704	$md5 =
		705	join "\x00",
		706	$processversion,
		707	map {
		708	cf::cede_to_tick;
		709	($src->[$_], Digest::MD5::md5_hex $data[$_])
		710	} 0.. $#$src;
		711
		712
		713	my $dbmd5 = db_get cache => "$id/md5";
		714	if ($dbmd5 eq $md5) {
		715	db_put cache => "$id/meta", $meta;
		716
		717	return db_get cache => "$id/data";
		718	}
		719	}
		720
		721	my $t1 = Time::HiRes::time;
		722	my $data = $process->(\@data);
		723	my $t2 = Time::HiRes::time;
		724
		725	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		726
		727	db_put cache => "$id/data", $data;
		728	db_put cache => "$id/md5" , $md5;
		729	db_put cache => "$id/meta", $meta;
		730
		731	return $data;
		732	}
		733
		734	db_get cache => "$id/data"
		735	}
		736
		737	=item cf::datalog type => key => value, ...
		738
		739	Log a datalog packet of the given type with the given key-value pairs.
		740
		741	=cut
		742
		743	sub datalog($@) {
		744	my ($type, %kv) = @_;
		745	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	746	}
372		747
373	=back	748	=back
374		749
375	=cut	750	=cut
376		751
377	#############################################################################	752	#############################################################################
378		753
379	=head2 ATTACHABLE OBJECTS	754	=head2 ATTACHABLE OBJECTS
380		755
381	Many objects in crossfire are so-called attachable objects. That means you can	756	Many objects in deliantra are so-called attachable objects. That means you can
382	attach callbacks/event handlers (a collection of which is called an "attachment")	757	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	758	to it. All such attachable objects support the following methods.
384		759
385	In the following description, CLASS can be any of C<global>, C<object>	760	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	761	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	762	Deliantra).
388		763
389	=over 4	764	=over 4
390		765
391	=item $attachable->attach ($attachment, key => $value...)	766	=item $attachable->attach ($attachment, key => $value...)
392		767
…		…
436	=item cf::CLASS::attachment $name, ...	811	=item cf::CLASS::attachment $name, ...
437		812
438	Register an attachment by C<$name> through which attachable objects of the	813	Register an attachment by C<$name> through which attachable objects of the
439	given CLASS can refer to this attachment.	814	given CLASS can refer to this attachment.
440		815
441	Some classes such as crossfire maps and objects can specify attachments	816	Some classes such as deliantra maps and objects can specify attachments
442	that are attached at load/instantiate time, thus the need for a name.	817	that are attached at load/instantiate time, thus the need for a name.
443		818
444	These calls expect any number of the following handler/hook descriptions:	819	These calls expect any number of the following handler/hook descriptions:
445		820
446	=over 4	821	=over 4
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	930	$registry = $CB_TYPE[$object_type] ||= [];
556		931
557	} elsif ($type eq "subtype") {	932	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	933	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	934	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	935	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		936
562	} elsif ($type eq "package") {	937	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	938	my $pkg = shift @arg;
564		939
565	while (my ($name, $id) = each %cb_id) {	940	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	969	_attach $registry, $klass, @attach;
595	}	970	}
596		971
597	$obj->{$name} = \%arg;	972	$obj->{$name} = \%arg;
598	} else {	973	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	974	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	975	}
601		976
602	$obj->{_attachment}{$name} = undef;	977	$obj->{_attachment}{$name} = undef;
603	}	978	}
604		979
…		…
606	if (ref $_[0]) {	981	if (ref $_[0]) {
607	_object_attach @_;	982	_object_attach @_;
608	} else {	983	} else {
609	_attach shift->_attach_registry, @_;	984	_attach shift->_attach_registry, @_;
610	}	985	}
		986	_recalc_want;
611	};	987	};
612		988
613	# all those should be optimised	989	# all those should be optimised
614	sub cf::attachable::detach {	990	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	991	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	994	delete $obj->{_attachment}{$name};
619	reattach ($obj);	995	reattach ($obj);
620	} else {	996	} else {
621	Carp::croak "cannot, currently, detach class attachments";	997	Carp::croak "cannot, currently, detach class attachments";
622	}	998	}
		999	_recalc_want;
623	};	1000	};
624		1001
625	sub cf::attachable::attached {	1002	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	1003	my ($obj, $name) = @_;
627		1004
…		…
642	";	1019	";
643	die if $@;	1020	die if $@;
644	}	1021	}
645		1022
646	our $override;	1023	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1024	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		1025
649	sub override {	1026	sub override {
650	$override = 1;	1027	$override = 1;
651	@invoke_results = ();	1028	@INVOKE_RESULTS = (@_);
652	}	1029	}
653		1030
654	sub do_invoke {	1031	sub do_invoke {
655	my $event = shift;	1032	my $event = shift;
656	my $callbacks = shift;	1033	my $callbacks = shift;
657		1034
658	@invoke_results = ();	1035	@INVOKE_RESULTS = ();
659		1036
660	local $override;	1037	local $override;
661		1038
662	for (@$callbacks) {	1039	for (@$callbacks) {
663	eval { &{$_->[1]} };	1040	eval { &{$_->[1]} };
…		…
672	}	1049	}
673		1050
674	0	1051	0
675	}	1052	}
676		1053
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1054	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		1055
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		1057
681	Generate an object-specific event with the given arguments.	1058	Generate an object-specific event with the given arguments.
682		1059
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1060	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	1061	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	1062	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		1063
687	=back	1064	=back
688		1065
689	=cut	1066	=cut
690		1067
691	#############################################################################	1068	#############################################################################
692	# object support	1069	# object support
		1070
		1071	sub _object_equal($$);
		1072	sub _object_equal($$) {
		1073	my ($a, $b) = @_;
		1074
		1075	return 0 unless (ref $a) eq (ref $b);
		1076
		1077	if ("HASH" eq ref $a) {
		1078	my @ka = keys %$a;
		1079	my @kb = keys %$b;
		1080
		1081	return 0 if @ka != @kb;
		1082
		1083	for (0 .. $#ka) {
		1084	return 0 unless $ka[$_] eq $kb[$_];
		1085	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1086	}
		1087
		1088	} elsif ("ARRAY" eq ref $a) {
		1089
		1090	return 0 if @$a != @$b;
		1091
		1092	for (0 .. $#$a) {
		1093	return 0 unless _object_equal $a->[$_], $b->[$_];
		1094	}
		1095
		1096	} elsif ($a ne $b) {
		1097	return 0;
		1098	}
		1099
		1100	1
		1101	}
		1102
		1103	our $SLOW_MERGES;#d#
		1104	sub _can_merge {
		1105	my ($ob1, $ob2) = @_;
		1106
		1107	++$SLOW_MERGES;#d#
		1108
		1109	# we do the slow way here
		1110	return _object_equal $ob1, $ob2
		1111	}
693		1112
694	sub reattach {	1113	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1114	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1115	my ($obj) = @_;
697		1116
		1117	# no longer needed after getting rid of delete_package?
698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1118	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
699		1119
700	my $registry = $obj->registry;	1120	my $registry = $obj->registry;
701		1121
702	@$registry = ();	1122	@$registry = ();
703		1123
…		…
718	cf::attachable->attach (	1138	cf::attachable->attach (
719	prio => -1000000,	1139	prio => -1000000,
720	on_instantiate => sub {	1140	on_instantiate => sub {
721	my ($obj, $data) = @_;	1141	my ($obj, $data) = @_;
722		1142
723	$data = from_json $data;	1143	$data = decode_json $data;
724		1144
725	for (@$data) {	1145	for (@$data) {
726	my ($name, $args) = @$_;	1146	my ($name, $args) = @$_;
727		1147
728	$obj->attach ($name, %{$args || {} });	1148	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1164	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1165	my ($filename, $rdata, $objs) = @_;
746		1166
747	sync_job {	1167	sync_job {
748	if (length $$rdata) {	1168	if (length $$rdata) {
		1169	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1170	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1171	$decname, length $$rdata, scalar @$objs;
751		1172
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1173	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1174	aio_chmod $fh, SAVE_MODE;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1175	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1176	if ($cf::USE_FSYNC) {
		1177	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
755	aio_fsync $fh;	1178	aio_fsync $fh;
		1179	}
756	close $fh;	1180	aio_close $fh;
757		1181
758	if (@$objs) {	1182	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1183	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1184	aio_chmod $fh, SAVE_MODE;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1185	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1186	aio_write $fh, 0, (length $data), $data, 0;
		1187	if ($cf::USE_FSYNC) {
		1188	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
763	aio_fsync $fh;	1189	aio_fsync $fh;
		1190	}
764	close $fh;	1191	aio_close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1192	aio_rename "$filename.pst~", "$filename.pst";
766	}	1193	}
767	} else {	1194	} else {
768	aio_unlink "$filename.pst";	1195	aio_unlink "$filename.pst";
769	}	1196	}
770		1197
771	aio_rename "$filename~", $filename;	1198	aio_rename "$filename~", $filename;
		1199
		1200	$filename =~ s%/[^/]+$%%;
		1201	aio_pathsync $filename if $cf::USE_FSYNC;
772	} else {	1202	} else {
773	warn "FATAL: $filename~: $!\n";	1203	warn "unable to save objects: $filename~: $!\n";
774	}	1204	}
775	} else {	1205	} else {
776	aio_unlink $filename;	1206	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1207	aio_unlink "$filename.pst";
778	}	1208	}
779	}	1209	};
780	}	1210	}
781		1211
782	sub object_freezer_as_string {	1212	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1213	my ($rdata, $objs) = @_;
784		1214
…		…
796	or return;	1226	or return;
797		1227
798	unless (aio_stat "$filename.pst") {	1228	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1229	(aio_load "$filename.pst", $av) >= 0
800	or return;	1230	or return;
		1231
801	$av = eval { (Storable::thaw $av)->{objs} };	1232	my $st = eval { Coro::Storable::thaw $av };
		1233	$av = $st->{objs};
802	}	1234	}
803		1235
		1236	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1237	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1238	$decname, length $data, scalar @{$av || []};
		1239
806	return ($data, $av);	1240	($data, $av)
807	}	1241	}
		1242
		1243	=head2 COMMAND CALLBACKS
		1244
		1245	=over 4
		1246
		1247	=cut
808		1248
809	#############################################################################	1249	#############################################################################
810	# command handling &c	1250	# command handling &c
811		1251
812	=item cf::register_command $name => \&callback($ob,$args);	1252	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1265	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1266	}
827		1267
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1268	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1269
830	Register a callbackf ro execution when the client sends an extcmd packet.	1270	Register a callback for execution when the client sends an (synchronous)
		1271	extcmd packet. Ext commands will be processed in the order they are
		1272	received by the server, like other user commands. The first argument is
		1273	the logged-in player. Ext commands can only be processed after a player
		1274	has logged in successfully.
831		1275
832	If the callback returns something, it is sent back as if reply was being	1276	If the callback returns something, it is sent back as if reply was being
833	called.	1277	called.
834		1278
		1279	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1280
		1281	Register a callback for execution when the client sends an (asynchronous)
		1282	exticmd packet. Exti commands are processed by the server as soon as they
		1283	are received, i.e. out of order w.r.t. other commands. The first argument
		1284	is a client socket. Exti commands can be received anytime, even before
		1285	log-in.
		1286
		1287	If the callback returns something, it is sent back as if reply was being
		1288	called.
		1289
835	=cut	1290	=cut
836		1291
837	sub register_extcmd {	1292	sub register_extcmd {
838	my ($name, $cb) = @_;	1293	my ($name, $cb) = @_;
839		1294
840	$EXTCMD{$name} = $cb;	1295	$EXTCMD{$name} = $cb;
841	}	1296	}
		1297
		1298	sub register_exticmd {
		1299	my ($name, $cb) = @_;
		1300
		1301	$EXTICMD{$name} = $cb;
		1302	}
		1303
		1304	use File::Glob ();
842		1305
843	cf::player->attach (	1306	cf::player->attach (
844	on_command => sub {	1307	on_command => sub {
845	my ($pl, $name, $params) = @_;	1308	my ($pl, $name, $params) = @_;
846		1309
…		…
854	cf::override;	1317	cf::override;
855	},	1318	},
856	on_extcmd => sub {	1319	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1320	my ($pl, $buf) = @_;
858		1321
859	my $msg = eval { from_json $buf };	1322	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1323
861	if (ref $msg) {	1324	if (ref $msg) {
		1325	my ($type, $reply, @payload) =
		1326	"ARRAY" eq ref $msg
		1327	? @$msg
		1328	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1329
		1330	my @reply;
		1331
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1332	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1333	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1334	}
		1335
		1336	$pl->ext_reply ($reply, @reply)
		1337	if $reply;
		1338
867	} else {	1339	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1340	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1341	}
870		1342
871	cf::override;	1343	cf::override;
872	},	1344	},
873	);	1345	);
874		1346
		1347	# "readahead" all extensions
875	sub load_extension {	1348	sub cache_extensions {
876	my ($path) = @_;	1349	my $grp = IO::AIO::aio_group;
877		1350
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1351	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
879	my $base = $1;	1352	for (grep /\.ext$/, @{$_[0]}) {
880	my $pkg = $1;	1353	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}	1354	}
903	die $@;
904	}	1355	};
905		1356
906	push @EXTS, $pkg;	1357	$grp
907	}	1358	}
908		1359
909	sub load_extensions {	1360	sub load_extensions {
		1361	cf::sync_job {
		1362	my %todo;
		1363
910	for my $ext (<$LIBDIR/*.ext>) {	1364	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1365	next unless -r $path;
912	eval {	1366
913	load_extension $ext;	1367	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1368	my $base = $1;
		1369	my $pkg = $1;
		1370	$pkg =~ s/[^[:word:]]/_/g;
		1371	$pkg = "ext::$pkg";
		1372
		1373	open my $fh, "<:utf8", $path
		1374	or die "$path: $!";
		1375
		1376	my $source = do { local $/; <$fh> };
		1377
		1378	my %ext = (
		1379	path => $path,
		1380	base => $base,
		1381	pkg => $pkg,
		1382	);
		1383
		1384	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1385	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1386
		1387	$ext{source} =
		1388	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1389	. "#line 1 \"$path\"\n{\n"
		1390	. $source
		1391	. "\n};\n1";
		1392
		1393	$todo{$base} = \%ext;
		1394	}
		1395
		1396	my %done;
		1397	while (%todo) {
		1398	my $progress;
		1399
		1400	while (my ($k, $v) = each %todo) {
		1401	for (split /,\s*/, $v->{meta}{depends}) {
		1402	goto skip
		1403	unless exists $done{$_};
		1404	}
		1405
		1406	warn "... loading '$k' into '$v->{pkg}'\n";
		1407
		1408	unless (eval $v->{source}) {
		1409	my $msg = $@ ? "$v->{path}: $@\n"
		1410	: "$v->{base}: extension inactive.\n";
		1411
		1412	if (exists $v->{meta}{mandatory}) {
		1413	warn $msg;
		1414	cf::cleanup "mandatory extension failed to load, exiting.";
		1415	}
		1416
		1417	warn $msg;
		1418	}
		1419
		1420	$done{$k} = delete $todo{$k};
		1421	push @EXTS, $v->{pkg};
		1422	$progress = 1;
914	1	1423	}
915	} or warn "$ext not loaded: $@";	1424
		1425	skip:
		1426	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1427	unless $progress;
		1428	}
916	}	1429	};
917	}	1430	}
918		1431
919	#############################################################################	1432	#############################################################################
920		1433
		1434	=back
		1435
921	=head2 CORE EXTENSIONS	1436	=head2 CORE EXTENSIONS
922		1437
923	Functions and methods that extend core crossfire objects.	1438	Functions and methods that extend core deliantra objects.
924		1439
925	=cut	1440	=cut
926		1441
927	package cf::player;	1442	package cf::player;
928		1443
…		…
930		1445
931	=head3 cf::player	1446	=head3 cf::player
932		1447
933	=over 4	1448	=over 4
934		1449
		1450	=item cf::player::num_playing
		1451
		1452	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1453
		1454	=cut
		1455
		1456	sub num_playing {
		1457	scalar grep
		1458	$_->ob->map
		1459	&& !$_->hidden
		1460	&& !$_->ob->flag (cf::FLAG_WIZ),
		1461	cf::player::list
		1462	}
		1463
935	=item cf::player::find $login	1464	=item cf::player::find $login
936		1465
937	Returns the given player object, loading it if necessary (might block).	1466	Returns the given player object, loading it if necessary (might block).
938		1467
939	=cut	1468	=cut
940		1469
941	sub playerdir($) {	1470	sub playerdir($) {
942	cf::localdir	1471	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1472	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1473	}
948		1474
949	sub path($) {	1475	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1476	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1477
952	(playerdir $login) . "/$login.pl"	1478	(playerdir $login) . "/playerdata"
953	}	1479	}
954		1480
955	sub find_active($) {	1481	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1482	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1483	and $cf::PLAYER{$_[0]}->active
…		…
960		1486
961	sub exists($) {	1487	sub exists($) {
962	my ($login) = @_;	1488	my ($login) = @_;
963		1489
964	$cf::PLAYER{$login}	1490	$cf::PLAYER{$login}
965	or cf::sync_job { !aio_stat path $login }	1491	or !aio_stat path $login
966	}	1492	}
967		1493
968	sub find($) {	1494	sub find($) {
969	return $cf::PLAYER{$_[0]} || do {	1495	return $cf::PLAYER{$_[0]} || do {
970	my $login = $_[0];	1496	my $login = $_[0];
971		1497
972	my $guard = cf::lock_acquire "user_find:$login";	1498	my $guard = cf::lock_acquire "user_find:$login";
973		1499
974	$cf::PLAYER{$_[0]} || do {	1500	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	1501	# rename old playerfiles to new ones
		1502	#TODO: remove when no longer required
		1503	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1504	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1505	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1506	aio_unlink +(playerdir $login) . "/$login.pl";
		1507
		1508	my $f = new_from_file cf::object::thawer path $login
976	or return;	1509	or return;
		1510
		1511	my $pl = cf::player::load_pl $f
		1512	or return;
		1513
		1514	local $cf::PLAYER_LOADING{$login} = $pl;
		1515	$f->resolve_delayed_derefs;
977	$cf::PLAYER{$login} = $pl	1516	$cf::PLAYER{$login} = $pl
978	}	1517	}
979	}	1518	}
980	}	1519	}
981		1520
…		…
990	return if $pl->{deny_save};	1529	return if $pl->{deny_save};
991		1530
992	aio_mkdir playerdir $pl, 0770;	1531	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1532	$pl->{last_save} = $cf::RUNTIME;
994		1533
		1534	cf::get_slot 0.01;
		1535
995	$pl->save_pl ($path);	1536	$pl->save_pl ($path);
996	Coro::cede;	1537	cf::cede_to_tick;
997	}	1538	}
998		1539
999	sub new($) {	1540	sub new($) {
1000	my ($login) = @_;	1541	my ($login) = @_;
1001		1542
…		…
1007	$cf::PLAYER{$login} = $self;	1548	$cf::PLAYER{$login} = $self;
1008		1549
1009	$self	1550	$self
1010	}	1551	}
1011		1552
		1553	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1554
		1555	=cut
		1556
		1557	sub send_msg {
		1558	my $ns = shift->ns
		1559	or return;
		1560	$ns->send_msg (@_);
		1561	}
		1562
1012	=item $pl->quit_character	1563	=item $pl->quit_character
1013		1564
1014	Nukes the player without looking back. If logged in, the connection will	1565	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1566	be destroyed. May block for a long time.
1016		1567
1017	=cut	1568	=cut
1018		1569
1019	sub quit_character {	1570	sub quit_character {
1020	my ($pl) = @_;	1571	my ($pl) = @_;
1021		1572
		1573	my $name = $pl->ob->name;
		1574
1022	$pl->{deny_save} = 1;	1575	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1576	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1024		1577
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1578	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026	$pl->deactivate;	1579	$pl->deactivate;
		1580	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1581	$pl->ob->check_score;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1582	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1028	$pl->ns->destroy if $pl->ns;	1583	$pl->ns->destroy if $pl->ns;
1029		1584
1030	my $path = playerdir $pl;	1585	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1586	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1587	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1588	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1589	$pl->destroy;
		1590
		1591	my $prefix = qr<^~\Q$name\E/>;
		1592
		1593	# nuke player maps
		1594	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1595
1035	IO::AIO::aio_rmtree $temp;	1596	IO::AIO::aio_rmtree $temp;
		1597	}
		1598
		1599	=item $pl->kick
		1600
		1601	Kicks a player out of the game. This destroys the connection.
		1602
		1603	=cut
		1604
		1605	sub kick {
		1606	my ($pl, $kicker) = @_;
		1607
		1608	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1609	$pl->killer ("kicked");
		1610	$pl->ns->destroy;
1036	}	1611	}
1037		1612
1038	=item cf::player::list_logins	1613	=item cf::player::list_logins
1039		1614
1040	Returns am arrayref of all valid playernames in the system, can take a	1615	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1616	while and may block, so not sync_job-capable, ever.
1042		1617
1043	=cut	1618	=cut
1044		1619
1045	sub list_logins {	1620	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1621	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1622	or return [];
1048		1623
1049	my @logins;	1624	my @logins;
1050		1625
1051	for my $login (@$dirs) {	1626	for my $login (@$dirs) {
		1627	my $path = path $login;
		1628
		1629	# a .pst is a dead give-away for a valid player
		1630	# if no pst file found, open and chekc for blocked users
		1631	if (aio_stat "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1632	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1633	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1634	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1635	}
1055		1636
1056	utf8::decode $login;	1637	utf8::decode $login;
1057	push @logins, $login;	1638	push @logins, $login;
1058	}	1639	}
1059		1640
…		…
1067		1648
1068	=cut	1649	=cut
1069		1650
1070	sub maps($) {	1651	sub maps($) {
1071	my ($pl) = @_;	1652	my ($pl) = @_;
		1653
		1654	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1655
1073	my $files = aio_readdir playerdir $pl	1656	my $files = aio_readdir playerdir $pl
1074	or return;	1657	or return;
1075		1658
1076	my @paths;	1659	my @paths;
…		…
1078	for (@$files) {	1661	for (@$files) {
1079	utf8::decode $_;	1662	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1663	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1664	next unless /^$PATH_SEP/o;
1082		1665
1083	s/\.map$//;	1666	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1667	}
1086		1668
1087	\@paths	1669	\@paths
1088	}	1670	}
1089		1671
		1672	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1673
		1674	Expand deliantra pod fragments into protocol xml.
		1675
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1676	=item $player->ext_reply ($msgid, @msg)
1091		1677
1092	Sends an ext reply to the player.	1678	Sends an ext reply to the player.
1093		1679
1094	=cut	1680	=cut
1095		1681
1096	sub ext_reply($$$%) {	1682	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1683	my ($self, $id, @msg) = @_;
1098		1684
1099	$msg{msgid} = $id;	1685	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1686	}
1103		1687
1104	package cf;	1688	=item $player->ext_msg ($type, @msg)
		1689
		1690	Sends an ext event to the client.
		1691
		1692	=cut
		1693
		1694	sub ext_msg($$@) {
		1695	my ($self, $type, @msg) = @_;
		1696
		1697	$self->ns->ext_msg ($type, @msg);
		1698	}
		1699
		1700	=head3 cf::region
		1701
		1702	=over 4
		1703
		1704	=cut
		1705
		1706	package cf::region;
		1707
		1708	=item cf::region::find_by_path $path
		1709
		1710	Tries to decuce the likely region for a map knowing only its path.
		1711
		1712	=cut
		1713
		1714	sub find_by_path($) {
		1715	my ($path) = @_;
		1716
		1717	my ($match, $specificity);
		1718
		1719	for my $region (list) {
		1720	if ($region->{match} && $path =~ $region->{match}) {
		1721	($match, $specificity) = ($region, $region->specificity)
		1722	if $region->specificity > $specificity;
		1723	}
		1724	}
		1725
		1726	$match
		1727	}
1105		1728
1106	=back	1729	=back
1107
1108		1730
1109	=head3 cf::map	1731	=head3 cf::map
1110		1732
1111	=over 4	1733	=over 4
1112		1734
…		…
1124	our $MAX_RESET = 3600;	1746	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	1747	our $DEFAULT_RESET = 3000;
1126		1748
1127	sub generate_random_map {	1749	sub generate_random_map {
1128	my ($self, $rmp) = @_;	1750	my ($self, $rmp) = @_;
		1751
		1752	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1753
1129	# mit "rum" bekleckern, nicht	1754	# mit "rum" bekleckern, nicht
1130	$self->_create_random_map (	1755	$self->_create_random_map (
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1756	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1757	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1758	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1167	my ($self, $merge) = @_;	1792	my ($self, $merge) = @_;
1168		1793
1169	# we have to keep some variables in memory intact	1794	# we have to keep some variables in memory intact
1170	local $self->{path};	1795	local $self->{path};
1171	local $self->{load_path};	1796	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1797
1175	$self->SUPER::thawer_merge ($merge);	1798	$self->SUPER::thawer_merge ($merge);
1176	}	1799	}
1177		1800
1178	sub normalise {	1801	sub normalise {
1179	my ($path, $base) = @_;	1802	my ($path, $base) = @_;
1180		1803
1181	$path = "$path"; # make sure its a string	1804	$path = "$path"; # make sure its a string
		1805
		1806	$path =~ s/\.map$//;
1182		1807
1183	# map plan:	1808	# map plan:
1184	#	1809	#
1185	# /! non-realised random map exit (special hack!)	1810	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1811	# {... are special paths that are not being touched
…		…
1223	$self->init; # pass $1 etc.	1848	$self->init; # pass $1 etc.
1224	return $self;	1849	return $self;
1225	}	1850	}
1226	}	1851	}
1227		1852
1228	Carp::carp "unable to resolve path '$path' (base '$base').";	1853	Carp::cluck "unable to resolve path '$path' (base '$base').";
1229	()	1854	()
1230	}	1855	}
1231		1856
1232	sub init {	1857	sub init {
1233	my ($self) = @_;	1858	my ($self) = @_;
…		…
1248		1873
1249	# the original (read-only) location	1874	# the original (read-only) location
1250	sub load_path {	1875	sub load_path {
1251	my ($self) = @_;	1876	my ($self) = @_;
1252		1877
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1878	"$MAPDIR/$self->{path}.map"
1254	}	1879	}
1255		1880
1256	# the temporary/swap location	1881	# the temporary/swap location
1257	sub save_path {	1882	sub save_path {
1258	my ($self) = @_;	1883	my ($self) = @_;
1259		1884
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1885	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1886	"$TMPDIR/$path.map"
1262	}	1887	}
1263		1888
1264	# the unique path, undef == no special unique path	1889	# the unique path, undef == no special unique path
1265	sub uniq_path {	1890	sub uniq_path {
1266	my ($self) = @_;	1891	my ($self) = @_;
1267		1892
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1894	"$UNIQUEDIR/$path"
1270	}	1895	}
1271		1896
1272	# and all this just because we cannot iterate over	1897	sub decay_objects {
1273	# all maps in C++...
1274	sub change_all_map_light {
1275	my ($change) = @_;	1898	my ($self) = @_;
1276		1899
1277	$_->change_map_light ($change)	1900	return if $self->{deny_reset};
1278	for grep $_->outdoor, values %cf::MAP;	1901
		1902	$self->do_decay_objects;
1279	}	1903	}
1280		1904
1281	sub unlink_save {	1905	sub unlink_save {
1282	my ($self) = @_;	1906	my ($self) = @_;
1283		1907
…		…
1288		1912
1289	sub load_header_from($) {	1913	sub load_header_from($) {
1290	my ($self, $path) = @_;	1914	my ($self, $path) = @_;
1291		1915
1292	utf8::encode $path;	1916	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1917	my $f = new_from_file cf::object::thawer $path
1294	or return;	1918	or return;
1295		1919
1296	$self->_load_header ($path)	1920	$self->_load_header ($f)
1297	or return;	1921	or return;
		1922
		1923	local $MAP_LOADING{$self->{path}} = $self;
		1924	$f->resolve_delayed_derefs;
1298		1925
1299	$self->{load_path} = $path;	1926	$self->{load_path} = $path;
1300		1927
1301	1	1928	1
1302	}	1929	}
…		…
1341	$self->load_header_orig	1968	$self->load_header_orig
1342	or return;	1969	or return;
1343	$self->prepare_orig;	1970	$self->prepare_orig;
1344	}	1971	}
1345		1972
		1973	$self->{deny_reset} = 1
		1974	if $self->no_reset;
		1975
		1976	$self->default_region (cf::region::find_by_path $self->{path})
		1977	unless $self->default_region;
		1978
1346	1	1979	1
1347	}	1980	}
1348		1981
1349	sub find;	1982	sub find;
1350	sub find {	1983	sub find {
1351	my ($path, $origin) = @_;	1984	my ($path, $origin) = @_;
1352		1985
1353	$path = normalise $path, $origin && $origin->path;	1986	$path = normalise $path, $origin && $origin->path;
1354		1987
		1988	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1355	cf::lock_wait "map_find:$path";	1989	my $guard2 = cf::lock_acquire "map_find:$path";
1356		1990
1357	$cf::MAP{$path} || do {	1991	$cf::MAP{$path} || do {
1358	my $guard = cf::lock_acquire "map_find:$path";
1359	my $map = new_from_path cf::map $path	1992	my $map = new_from_path cf::map $path
1360	or return;	1993	or return;
1361		1994
1362	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1363		1996
1364	$map->load_header	1997	$map->load_header
1365	or return;	1998	or return;
1366		1999
1367	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1368	# doing this can freeze the server in a sync job, obviously	2001	# doing this can freeze the server in a sync job, obviously
1369	#$cf::WAIT_FOR_TICK->wait;	2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard2;
		2004	undef $guard1;
1370	$map->reset;	2005	$map->reset;
1371	undef $guard;
1372	return find $path;	2006	return find $path;
1373	}	2007	}
1374		2008
1375	$cf::MAP{$path} = $map	2009	$cf::MAP{$path} = $map
1376	}	2010	}
…		…
1380	sub post_load { }	2014	sub post_load { }
1381		2015
1382	sub load {	2016	sub load {
1383	my ($self) = @_;	2017	my ($self) = @_;
1384		2018
		2019	local $self->{deny_reset} = 1; # loading can take a long time
		2020
1385	my $path = $self->{path};	2021	my $path = $self->{path};
		2022
		2023	{
1386	my $guard = cf::lock_acquire "map_load:$path";	2024	my $guard = cf::lock_acquire "map_data:$path";
1387		2025
		2026	return unless $self->valid;
1388	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1389		2028
1390	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1391		2030
1392	$self->alloc;	2031	$self->alloc;
1393		2032
1394	$self->pre_load;	2033	$self->pre_load;
		2034	cf::cede_to_tick;
1395		2035
1396	$self->_load_objects ($self->{load_path}, 1)	2036	my $f = new_from_file cf::object::thawer $self->{load_path};
		2037	$f->skip_block;
		2038	$self->_load_objects ($f)
1397	or return;	2039	or return;
1398		2040
1399	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->post_load_original
1400	if delete $self->{load_original};	2042	if delete $self->{load_original};
1401		2043
1402	if (my $uniq = $self->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1403	utf8::encode $uniq;	2045	utf8::encode $uniq;
1404	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1405	$self->clear_unique_items;	2048	$self->clear_unique_items;
1406	$self->_load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1407	}	2052	}
1408	}	2053	}
1409		2054
1410	Coro::cede;	2055	$f->resolve_delayed_derefs;
1411		2056
		2057	cf::cede_to_tick;
1412	# now do the right thing for maps	2058	# now do the right thing for maps
1413	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1414
1415	unless ($self->{deny_activate}) {
1416	$self->decay_objects;
1417	$self->fix_auto_apply;
1418	$self->update_buttons;
1419	Coro::cede;
1420	$self->set_darkness_map;
1421	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1422	unless $self->difficulty;	2061	unless $self->difficulty;
1423	Coro::cede;	2062	cf::cede_to_tick;
		2063
		2064	unless ($self->{deny_activate}) {
		2065	$self->decay_objects;
		2066	$self->fix_auto_apply;
		2067	$self->update_buttons;
		2068	cf::cede_to_tick;
1424	$self->activate;	2069	$self->activate;
		2070	}
		2071
		2072	$self->{last_save} = $cf::RUNTIME;
		2073	$self->last_access ($cf::RUNTIME);
		2074
		2075	$self->in_memory (cf::MAP_ACTIVE);
1425	}	2076	}
1426		2077
1427	$self->post_load;	2078	$self->post_load;
1428
1429	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	2079	}
1431		2080
1432	sub customise_for {	2081	sub customise_for {
1433	my ($self, $ob) = @_;	2082	my ($self, $ob) = @_;
1434		2083
1435	return find "~" . $ob->name . "/" . $self->{path}	2084	return find "~" . $ob->name . "/" . $self->{path}
1436	if $self->per_player;	2085	if $self->per_player;
1437		2086
		2087	# return find "?party/" . $ob->name . "/" . $self->{path}
		2088	# if $self->per_party;
		2089
1438	$self	2090	$self
1439	}	2091	}
1440		2092
1441	# find and load all maps in the 3x3 area around a map	2093	# find and load all maps in the 3x3 area around a map
1442	sub load_diag {	2094	sub load_neighbours {
1443	my ($map) = @_;	2095	my ($map) = @_;
1444		2096
1445	my @diag; # diagonal neighbours	2097	my @neigh; # diagonal neighbours
1446		2098
1447	for (0 .. 3) {	2099	for (0 .. 3) {
1448	my $neigh = $map->tile_path ($_)	2100	my $neigh = $map->tile_path ($_)
1449	or next;	2101	or next;
1450	$neigh = find $neigh, $map	2102	$neigh = find $neigh, $map
1451	or next;	2103	or next;
1452	$neigh->load;	2104	$neigh->load;
1453		2105
		2106	push @neigh,
1454	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2107	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1455	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2108	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1456	}	2109	}
1457		2110
1458	for (@diag) {	2111	for (grep defined $_->[0], @neigh) {
		2112	my ($path, $origin) = @$_;
1459	my $neigh = find @$_	2113	my $neigh = find $path, $origin
1460	or next;	2114	or next;
1461	$neigh->load;	2115	$neigh->load;
1462	}	2116	}
1463	}	2117	}
1464		2118
…		…
1469	}	2123	}
1470		2124
1471	sub do_load_sync {	2125	sub do_load_sync {
1472	my ($map) = @_;	2126	my ($map) = @_;
1473		2127
		2128	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2129	if $Coro::current == $Coro::main;
		2130
1474	cf::sync_job { $map->load };	2131	cf::sync_job { $map->load };
1475	}	2132	}
1476		2133
1477	our %MAP_PREFETCH;	2134	our %MAP_PREFETCH;
1478	our $MAP_PREFETCHER = undef;	2135	our $MAP_PREFETCHER = undef;
1479		2136
1480	sub find_async {	2137	sub find_async {
1481	my ($path, $origin) = @_;	2138	my ($path, $origin, $load) = @_;
1482		2139
1483	$path = normalise $path, $origin && $origin->{path};	2140	$path = normalise $path, $origin && $origin->{path};
1484		2141
1485	if (my $map = $cf::MAP{$path}) {	2142	if (my $map = $cf::MAP{$path}) {
1486	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2143	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1487	}	2144	}
1488		2145
1489	undef $MAP_PREFETCH{$path};	2146	$MAP_PREFETCH{$path} |= $load;
		2147
1490	$MAP_PREFETCHER ||= cf::async {	2148	$MAP_PREFETCHER ||= cf::async {
		2149	$Coro::current->{desc} = "map prefetcher";
		2150
1491	while (%MAP_PREFETCH) {	2151	while (%MAP_PREFETCH) {
1492	for my $path (keys %MAP_PREFETCH) {	2152	while (my ($k, $v) = each %MAP_PREFETCH) {
1493	my $map = find $path	2153	if (my $map = find $k) {
1494	or next;
1495	$map->load;	2154	$map->load if $v;
		2155	}
1496		2156
1497	delete $MAP_PREFETCH{$path};	2157	delete $MAP_PREFETCH{$k};
1498	}	2158	}
1499	}	2159	}
1500	undef $MAP_PREFETCHER;	2160	undef $MAP_PREFETCHER;
1501	};	2161	};
1502	$MAP_PREFETCHER->prio (6);	2162	$MAP_PREFETCHER->prio (6);
…		…
1505	}	2165	}
1506		2166
1507	sub save {	2167	sub save {
1508	my ($self) = @_;	2168	my ($self) = @_;
1509		2169
1510	my $lock = cf::lock_acquire "map_data:" . $self->path;	2170	my $lock = cf::lock_acquire "map_data:$self->{path}";
1511		2171
1512	$self->{last_save} = $cf::RUNTIME;	2172	$self->{last_save} = $cf::RUNTIME;
1513		2173
1514	return unless $self->dirty;	2174	return unless $self->dirty;
1515		2175
…		…
1521	return if $self->{deny_save};	2181	return if $self->{deny_save};
1522		2182
1523	local $self->{last_access} = $self->last_access;#d#	2183	local $self->{last_access} = $self->last_access;#d#
1524		2184
1525	cf::async {	2185	cf::async {
		2186	$Coro::current->{desc} = "map player save";
1526	$_->contr->save for $self->players;	2187	$_->contr->save for $self->players;
1527	};	2188	};
		2189
		2190	cf::get_slot 0.02;
1528		2191
1529	if ($uniq) {	2192	if ($uniq) {
1530	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1531	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1532	} else {	2195	} else {
…		…
1538	my ($self) = @_;	2201	my ($self) = @_;
1539		2202
1540	# save first because save cedes	2203	# save first because save cedes
1541	$self->save;	2204	$self->save;
1542		2205
1543	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1544		2207
1545	return if $self->players;	2208	return if $self->players;
1546	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_ACTIVE;
1547	return if $self->{deny_save};	2210	return if $self->{deny_save};
1548		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1549	$self->clear;	2216	$self->clear;
1550	$self->in_memory (cf::MAP_SWAPPED);
1551	}	2217	}
1552		2218
1553	sub reset_at {	2219	sub reset_at {
1554	my ($self) = @_;	2220	my ($self) = @_;
1555		2221
1556	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1557	return 1e99 if $self->isa ("ext::map_per_player");#d#
1558	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1559		2224
1560	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1561	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1562		2227
…		…
1573	my ($self) = @_;	2238	my ($self) = @_;
1574		2239
1575	my $lock = cf::lock_acquire "map_data:$self->{path}";	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2241
1577	return if $self->players;	2242	return if $self->players;
1578	return if $self->isa ("ext::map_per_player");#d#
1579		2243
1580	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path, "\n";
		2245
		2246	$self->in_memory (cf::MAP_SWAPPED);
		2247
		2248	# need to save uniques path
		2249	unless ($self->{deny_save}) {
		2250	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2251
		2252	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2253	if $uniq;
		2254	}
1581		2255
1582	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1583		2257
1584	$self->in_memory (cf::MAP_SWAPPED);	2258	$self->deactivate;
		2259	$_->clear_links_to ($self) for values %cf::MAP;
1585	$self->clear;	2260	$self->clear;
1586
1587	$_->clear_links_to ($self) for values %cf::MAP;
1588		2261
1589	$self->unlink_save;	2262	$self->unlink_save;
1590	$self->destroy;	2263	$self->destroy;
1591	}	2264	}
1592		2265
1593	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1594		2267
1595	sub nuke {	2268	sub nuke {
1596	my ($self) = @_;	2269	my ($self) = @_;
1597		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
1598	delete $cf::MAP{$self->path};	2274	delete $cf::MAP{$self->path};
1599		2275
1600	$self->unlink_save;	2276	$self->unlink_save;
1601		2277
1602	bless $self, "cf::map";	2278	bless $self, "cf::map";
1603	delete $self->{deny_reset};	2279	delete $self->{deny_reset};
1604	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1605	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1606	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1607		2283
1608	$cf::MAP{$self->path} = $self;	2284	$cf::MAP{$self->path} = $self;
		2285	}
1609		2286
1610	$self->reset; # polite request, might not happen	2287	$self->reset; # polite request, might not happen
		2288	}
		2289
		2290	=item $maps = cf::map::tmp_maps
		2291
		2292	Returns an arrayref with all map paths of currently instantiated and saved
		2293	maps. May block.
		2294
		2295	=cut
		2296
		2297	sub tmp_maps() {
		2298	[
		2299	map {
		2300	utf8::decode $_;
		2301	/\.map$/
		2302	? normalise $_
		2303	: ()
		2304	} @{ aio_readdir $TMPDIR or [] }
		2305	]
		2306	}
		2307
		2308	=item $maps = cf::map::random_maps
		2309
		2310	Returns an arrayref with all map paths of currently instantiated and saved
		2311	random maps. May block.
		2312
		2313	=cut
		2314
		2315	sub random_maps() {
		2316	[
		2317	map {
		2318	utf8::decode $_;
		2319	/\.map$/
		2320	? normalise "?random/$_"
		2321	: ()
		2322	} @{ aio_readdir $RANDOMDIR or [] }
		2323	]
1611	}	2324	}
1612		2325
1613	=item cf::map::unique_maps	2326	=item cf::map::unique_maps
1614		2327
1615	Returns an arrayref of paths of all shared maps that have	2328	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2329	instantiated unique items. May block.
1617		2330
1618	=cut	2331	=cut
1619		2332
1620	sub unique_maps() {	2333	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2334	[
1622	or return;	2335	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2336	utf8::decode $_;
1628	next if /\.pst$/;	2337	s/\.map$//; # TODO future compatibility hack
1629	next unless /^$PATH_SEP/o;	2338	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1630		2339	? ()
1631	s/\.map$//;	2340	: normalise $_
1632	push @paths, $_;	2341	} @{ aio_readdir $UNIQUEDIR or [] }
1633	}	2342	]
1634
1635	\@paths
1636	}	2343	}
1637
1638	package cf;
1639		2344
1640	=back	2345	=back
1641		2346
1642	=head3 cf::object	2347	=head3 cf::object
1643		2348
…		…
1647		2352
1648	=over 4	2353	=over 4
1649		2354
1650	=item $ob->inv_recursive	2355	=item $ob->inv_recursive
1651		2356
1652	Returns the inventory of the object _and_ their inventories, recursively.	2357	Returns the inventory of the object I<and> their inventories, recursively,
		2358	but I<not> the object itself.
1653		2359
1654	=cut	2360	=cut
1655		2361
1656	sub inv_recursive_;	2362	sub inv_recursive_;
1657	sub inv_recursive_ {	2363	sub inv_recursive_ {
…		…
1660		2366
1661	sub inv_recursive {	2367	sub inv_recursive {
1662	inv_recursive_ inv $_[0]	2368	inv_recursive_ inv $_[0]
1663	}	2369	}
1664		2370
		2371	=item $ref = $ob->ref
		2372
		2373	Creates and returns a persistent reference to an object that can be stored as a string.
		2374
		2375	=item $ob = cf::object::deref ($refstring)
		2376
		2377	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2378	even if the object actually exists. May block.
		2379
		2380	=cut
		2381
		2382	sub deref {
		2383	my ($ref) = @_;
		2384
		2385	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2386	my ($uuid, $name) = ($1, $2);
		2387	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2388	or return;
		2389	$pl->ob->uuid eq $uuid
		2390	or return;
		2391
		2392	$pl->ob
		2393	} else {
		2394	warn "$ref: cannot resolve object reference\n";
		2395	undef
		2396	}
		2397	}
		2398
1665	package cf;	2399	package cf;
1666		2400
1667	=back	2401	=back
1668		2402
1669	=head3 cf::object::player	2403	=head3 cf::object::player
…		…
1675	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2409	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1676	can be C<undef>. Does the right thing when the player is currently in a	2410	can be C<undef>. Does the right thing when the player is currently in a
1677	dialogue with the given NPC character.	2411	dialogue with the given NPC character.
1678		2412
1679	=cut	2413	=cut
		2414
		2415	our $SAY_CHANNEL = {
		2416	id => "say",
		2417	title => "Map",
		2418	reply => "say ",
		2419	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2420	};
		2421
		2422	our $CHAT_CHANNEL = {
		2423	id => "chat",
		2424	title => "Chat",
		2425	reply => "chat ",
		2426	tooltip => "Player chat and shouts, global to the server.",
		2427	};
1680		2428
1681	# rough implementation of a future "reply" method that works	2429	# rough implementation of a future "reply" method that works
1682	# with dialog boxes.	2430	# with dialog boxes.
1683	#TODO: the first argument must go, split into a $npc->reply_to ( method	2431	#TODO: the first argument must go, split into a $npc->reply_to ( method
1684	sub cf::object::player::reply($$$;$) {	2432	sub cf::object::player::reply($$$;$) {
…		…
1686		2434
1687	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1688		2436
1689	if ($self->{record_replies}) {	2437	if ($self->{record_replies}) {
1690	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2439
1691	} else {	2440	} else {
		2441	my $pl = $self->contr;
		2442
		2443	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2444	my $dialog = $pl->{npc_dialog};
		2445	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2446
		2447	} else {
1692	$msg = $npc->name . " says: $msg" if $npc;	2448	$msg = $npc->name . " says: $msg" if $npc;
1693	$self->message ($msg, $flags);	2449	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2450	}
1694	}	2451	}
		2452	}
		2453
		2454	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2455
		2456	=cut
		2457
		2458	sub cf::object::send_msg {
		2459	my $pl = shift->contr
		2460	or return;
		2461	$pl->send_msg (@_);
1695	}	2462	}
1696		2463
1697	=item $player_object->may ("access")	2464	=item $player_object->may ("access")
1698		2465
1699	Returns wether the given player is authorized to access resource "access"	2466	Returns wether the given player is authorized to access resource "access"
…		…
1712		2479
1713	=item $player_object->enter_link	2480	=item $player_object->enter_link
1714		2481
1715	Freezes the player and moves him/her to a special map (C<{link}>).	2482	Freezes the player and moves him/her to a special map (C<{link}>).
1716		2483
1717	The player should be reasonably safe there for short amounts of time. You	2484	The player should be reasonably safe there for short amounts of time (e.g.
1718	I<MUST> call C<leave_link> as soon as possible, though.	2485	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2486	though, as the palyer cannot control the character while it is on the link
		2487	map.
1719		2488
1720	Will never block.	2489	Will never block.
1721		2490
1722	=item $player_object->leave_link ($map, $x, $y)	2491	=item $player_object->leave_link ($map, $x, $y)
1723		2492
…		…
1731	=cut	2500	=cut
1732		2501
1733	sub link_map {	2502	sub link_map {
1734	unless ($LINK_MAP) {	2503	unless ($LINK_MAP) {
1735	$LINK_MAP = cf::map::find "{link}"	2504	$LINK_MAP = cf::map::find "{link}"
1736	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2505	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1737	$LINK_MAP->load;	2506	$LINK_MAP->load;
1738	}	2507	}
1739		2508
1740	$LINK_MAP	2509	$LINK_MAP
1741	}	2510	}
…		…
1746	$self->deactivate_recursive;	2515	$self->deactivate_recursive;
1747		2516
1748	return if UNIVERSAL::isa $self->map, "ext::map_link";	2517	return if UNIVERSAL::isa $self->map, "ext::map_link";
1749		2518
1750	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1751	if $self->map;	2520	if $self->map && $self->map->{path} ne "{link}";
1752		2521
1753	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2522	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1754	}	2523	}
1755		2524
1756	sub cf::object::player::leave_link {	2525	sub cf::object::player::leave_link {
1757	my ($self, $map, $x, $y) = @_;	2526	my ($self, $map, $x, $y) = @_;
		2527
		2528	return unless $self->contr->active;
1758		2529
1759	my $link_pos = delete $self->{_link_pos};	2530	my $link_pos = delete $self->{_link_pos};
1760		2531
1761	unless ($map) {	2532	unless ($map) {
1762	# restore original map position	2533	# restore original map position
…		…
1776	# use -1 or undef as default coordinates, not 0, 0	2547	# use -1 or undef as default coordinates, not 0, 0
1777	($x, $y) = ($map->enter_x, $map->enter_y)	2548	($x, $y) = ($map->enter_x, $map->enter_y)
1778	if $x <=0 && $y <= 0;	2549	if $x <=0 && $y <= 0;
1779		2550
1780	$map->load;	2551	$map->load;
1781	$map->load_diag;	2552	$map->load_neighbours;
1782		2553
1783	return unless $self->contr->active;	2554	return unless $self->contr->active;
		2555
		2556	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2557	$self->enter_map ($map, $x, $y);
		2558
		2559	# only activate afterwards, to support waiting in hooks
1784	$self->activate_recursive;	2560	$self->activate_recursive;
1785	$self->enter_map ($map, $x, $y);
1786	}	2561	}
1787		2562
1788	cf::player->attach (	2563	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1789	on_logout => sub {
1790	my ($pl) = @_;
1791		2564
1792	# abort map switching before logout	2565	Moves the player to the given map-path and coordinates by first freezing
1793	if ($pl->ob->{_link_pos}) {	2566	her, loading and preparing them map, calling the provided $check callback
1794	cf::sync_job {	2567	that has to return the map if sucecssful, and then unfreezes the player on
1795	$pl->ob->leave_link	2568	the new (success) or old (failed) map position. In either case, $done will
1796	};	2569	be called at the end of this process.
1797	}
1798	},
1799	on_login => sub {
1800	my ($pl) = @_;
1801		2570
1802	# try to abort aborted map switching on player login :)	2571	Note that $check will be called with a potentially non-loaded map, so if
1803	# should happen only on crashes	2572	it needs a loaded map it has to call C<< ->load >>.
1804	if ($pl->ob->{_link_pos}) {
1805	$pl->ob->enter_link;
1806	(async {
1807	# we need this sleep as the login has a concurrent enter_exit running
1808	# and this sleep increases chances of the player not ending up in scorn
1809	$pl->ob->reply (undef,
1810	"There was an internal problem at your last logout, "
1811	. "the server will try to bring you to your intended destination in a second.",
1812	cf::NDI_RED);
1813	Coro::Timer::sleep 1;
1814	$pl->ob->leave_link;
1815	})->prio (2);
1816	}
1817	},
1818	);
1819		2573
1820	=item $player_object->goto ($path, $x, $y)
1821
1822	=cut	2574	=cut
		2575
		2576	our $GOTOGEN;
1823		2577
1824	sub cf::object::player::goto {	2578	sub cf::object::player::goto {
1825	my ($self, $path, $x, $y) = @_;	2579	my ($self, $path, $x, $y, $check, $done) = @_;
		2580
		2581	# do generation counting so two concurrent goto's will be executed in-order
		2582	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1826		2583
1827	$self->enter_link;	2584	$self->enter_link;
1828		2585
1829	(async {	2586	(async {
1830	my $map = cf::map::find $path;	2587	$Coro::current->{desc} = "player::goto $path $x $y";
		2588
		2589	# *tag paths override both path and x|y
		2590	if ($path =~ /^\*(.*)$/) {
		2591	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2592	my $ob = $obs[rand @obs];
		2593
		2594	# see if we actually can go there
		2595	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2596	$ob = $obs[rand @obs];
		2597	} else {
		2598	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
		2600	# else put us there anyways for now #d#
		2601
		2602	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2603	} else {
		2604	($path, $x, $y) = (undef, undef, undef);
		2605	}
		2606	}
		2607
		2608	my $map = eval {
		2609	my $map = defined $path ? cf::map::find $path : undef;
		2610
		2611	if ($map) {
1831	$map = $map->customise_for ($self) if $map;	2612	$map = $map->customise_for ($self);
1832		2613	$map = $check->($map) if $check && $map;
1833	# warn "entering ", $map->path, " at ($x, $y)\n"	2614	} else {
1834	# if $map;
1835
1836	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2615	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2616	}
1837		2617
		2618	$map
		2619	};
		2620
		2621	if ($@) {
		2622	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2623	LOG llevError | logBacktrace, Carp::longmess $@;
		2624	}
		2625
		2626	if ($gen == $self->{_goto_generation}) {
		2627	delete $self->{_goto_generation};
1838	$self->leave_link ($map, $x, $y);	2628	$self->leave_link ($map, $x, $y);
		2629	}
		2630
		2631	$done->() if $done;
1839	})->prio (1);	2632	})->prio (1);
1840	}	2633	}
1841		2634
1842	=item $player_object->enter_exit ($exit_object)	2635	=item $player_object->enter_exit ($exit_object)
1843		2636
…		…
1863	}	2656	}
1864		2657
1865	sub prepare_random_map {	2658	sub prepare_random_map {
1866	my ($exit) = @_;	2659	my ($exit) = @_;
1867		2660
1868	my $guard = cf::lock_acquire "exit_prepare:$exit";
1869
1870	# all this does is basically replace the /! path by	2661	# all this does is basically replace the /! path by
1871	# a new random map path (?random/...) with a seed	2662	# a new random map path (?random/...) with a seed
1872	# that depends on the exit object	2663	# that depends on the exit object
1873		2664
1874	my $rmp = parse_random_map_params $exit->msg;	2665	my $rmp = parse_random_map_params $exit->msg;
1875		2666
1876	if ($exit->map) {	2667	if ($exit->map) {
1877	$rmp->{region} = $exit->map->region_name;	2668	$rmp->{region} = $exit->region->name;
1878	$rmp->{origin_map} = $exit->map->path;	2669	$rmp->{origin_map} = $exit->map->path;
1879	$rmp->{origin_x} = $exit->x;	2670	$rmp->{origin_x} = $exit->x;
1880	$rmp->{origin_y} = $exit->y;	2671	$rmp->{origin_y} = $exit->y;
		2672
		2673	$exit->map->touch;
1881	}	2674	}
1882		2675
1883	$rmp->{random_seed} ||= $exit->random_seed;	2676	$rmp->{random_seed} ||= $exit->random_seed;
1884		2677
1885	my $data = cf::to_json $rmp;	2678	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1886	my $md5 = Digest::MD5::md5_hex $data;	2679	my $md5 = Digest::MD5::md5_hex $data;
1887	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2680	my $meta = "$RANDOMDIR/$md5.meta";
1888		2681
1889	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2682	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1890	aio_write $fh, 0, (length $data), $data, 0;	2683	aio_write $fh, 0, (length $data), $data, 0;
1891	undef $fh;	2684	undef $fh;
1892	aio_rename "$meta~", $meta;	2685	aio_rename "$meta~", $meta;
1893		2686
		2687	my $slaying = "?random/$md5";
		2688
		2689	if ($exit->valid) {
1894	$exit->slaying ("?random/$md5");	2690	$exit->slaying ("?random/$md5");
1895	$exit->msg (undef);	2691	$exit->msg (undef);
		2692	}
1896	}	2693	}
1897	}	2694	}
1898		2695
1899	sub cf::object::player::enter_exit {	2696	sub cf::object::player::enter_exit {
1900	my ($self, $exit) = @_;	2697	my ($self, $exit) = @_;
1901		2698
1902	return unless $self->type == cf::PLAYER;	2699	return unless $self->type == cf::PLAYER;
1903		2700
1904	if ($exit->slaying eq "/!") {
1905	#TODO: this should de-fi-ni-te-ly not be a sync-job
1906	cf::sync_job { prepare_random_map $exit };
1907	}
1908
1909	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1910	my $hp = $exit->stats->hp;
1911	my $sp = $exit->stats->sp;
1912
1913	$self->enter_link;	2701	$self->enter_link;
1914		2702
1915	(async {	2703	(async {
1916	$self->deactivate_recursive; # just to be sure	2704	$Coro::current->{desc} = "enter_exit";
		2705
1917	unless (eval {	2706	unless (eval {
		2707	$self->deactivate_recursive; # just to be sure
		2708
		2709	# random map handling
		2710	{
		2711	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2712
		2713	prepare_random_map $exit
		2714	if $exit->slaying eq "/!";
		2715	}
		2716
		2717	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2718	my $x = $exit->stats->hp;
		2719	my $y = $exit->stats->sp;
		2720
1918	$self->goto ($slaying, $hp, $sp);	2721	$self->goto ($map, $x, $y);
1919		2722
		2723	# if exit is damned, update players death & WoR home-position
		2724	$self->contr->savebed ($map, $x, $y)
		2725	if $exit->flag (cf::FLAG_DAMNED);
		2726
1920	1;	2727	1
1921	}) {	2728	}) {
1922	$self->message ("Something went wrong deep within the crossfire server. "	2729	$self->message ("Something went wrong deep within the deliantra server. "
1923	. "I'll try to bring you back to the map you were before. "	2730	. "I'll try to bring you back to the map you were before. "
1924	. "Please report this to the dungeon master!",	2731	. "Please report this to the dungeon master!",
1925	cf::NDI_UNIQUE | cf::NDI_RED);	2732	cf::NDI_UNIQUE | cf::NDI_RED);
1926		2733
1927	warn "ERROR in enter_exit: $@";	2734	warn "ERROR in enter_exit: $@";
1928	$self->leave_link;	2735	$self->leave_link;
1929	}	2736	}
1930	})->prio (1);	2737	})->prio (1);
…		…
1943		2750
1944	sub cf::client::send_drawinfo {	2751	sub cf::client::send_drawinfo {
1945	my ($self, $text, $flags) = @_;	2752	my ($self, $text, $flags) = @_;
1946		2753
1947	utf8::encode $text;	2754	utf8::encode $text;
1948	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2755	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1949	}	2756	}
1950		2757
		2758	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2759
		2760	Send a drawinfo or msg packet to the client, formatting the msg for the
		2761	client if neccessary. C<$type> should be a string identifying the type of
		2762	the message, with C<log> being the default. If C<$color> is negative, suppress
		2763	the message unless the client supports the msg packet.
		2764
		2765	=cut
		2766
		2767	# non-persistent channels (usually the info channel)
		2768	our %CHANNEL = (
		2769	"c/identify" => {
		2770	id => "infobox",
		2771	title => "Identify",
		2772	reply => undef,
		2773	tooltip => "Items recently identified",
		2774	},
		2775	"c/examine" => {
		2776	id => "infobox",
		2777	title => "Examine",
		2778	reply => undef,
		2779	tooltip => "Signs and other items you examined",
		2780	},
		2781	"c/book" => {
		2782	id => "infobox",
		2783	title => "Book",
		2784	reply => undef,
		2785	tooltip => "The contents of a note or book",
		2786	},
		2787	"c/lookat" => {
		2788	id => "infobox",
		2789	title => "Look",
		2790	reply => undef,
		2791	tooltip => "What you saw there",
		2792	},
		2793	"c/who" => {
		2794	id => "infobox",
		2795	title => "Players",
		2796	reply => undef,
		2797	tooltip => "Shows players who are currently online",
		2798	},
		2799	"c/body" => {
		2800	id => "infobox",
		2801	title => "Body Parts",
		2802	reply => undef,
		2803	tooltip => "Shows which body parts you posess and are available",
		2804	},
		2805	"c/statistics" => {
		2806	id => "infobox",
		2807	title => "Statistics",
		2808	reply => undef,
		2809	tooltip => "Shows your primary statistics",
		2810	},
		2811	"c/skills" => {
		2812	id => "infobox",
		2813	title => "Skills",
		2814	reply => undef,
		2815	tooltip => "Shows your experience per skill and item power",
		2816	},
		2817	"c/shopitems" => {
		2818	id => "infobox",
		2819	title => "Shop Items",
		2820	reply => undef,
		2821	tooltip => "Shows the items currently for sale in this shop",
		2822	},
		2823	"c/resistances" => {
		2824	id => "infobox",
		2825	title => "Resistances",
		2826	reply => undef,
		2827	tooltip => "Shows your resistances",
		2828	},
		2829	"c/pets" => {
		2830	id => "infobox",
		2831	title => "Pets",
		2832	reply => undef,
		2833	tooltip => "Shows information abotu your pets/a specific pet",
		2834	},
		2835	"c/perceiveself" => {
		2836	id => "infobox",
		2837	title => "Perceive Self",
		2838	reply => undef,
		2839	tooltip => "You gained detailed knowledge about yourself",
		2840	},
		2841	"c/uptime" => {
		2842	id => "infobox",
		2843	title => "Uptime",
		2844	reply => undef,
		2845	tooltip => "How long the server has been running since last restart",
		2846	},
		2847	"c/mapinfo" => {
		2848	id => "infobox",
		2849	title => "Map Info",
		2850	reply => undef,
		2851	tooltip => "Information related to the maps",
		2852	},
		2853	"c/party" => {
		2854	id => "party",
		2855	title => "Party",
		2856	reply => "gsay ",
		2857	tooltip => "Messages and chat related to your party",
		2858	},
		2859	"c/death" => {
		2860	id => "death",
		2861	title => "Death",
		2862	reply => undef,
		2863	tooltip => "Reason for and more info about your most recent death",
		2864	},
		2865	"c/say" => $SAY_CHANNEL,
		2866	"c/chat" => $CHAT_CHANNEL,
		2867	);
		2868
		2869	sub cf::client::send_msg {
		2870	my ($self, $channel, $msg, $color, @extra) = @_;
		2871
		2872	$msg = $self->pl->expand_cfpod ($msg)
		2873	unless $color & cf::NDI_VERBATIM;
		2874
		2875	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2876
		2877	# check predefined channels, for the benefit of C
		2878	if ($CHANNEL{$channel}) {
		2879	$channel = $CHANNEL{$channel};
		2880
		2881	$self->ext_msg (channel_info => $channel);
		2882	$channel = $channel->{id};
		2883
		2884	} elsif (ref $channel) {
		2885	# send meta info to client, if not yet sent
		2886	unless (exists $self->{channel}{$channel->{id}}) {
		2887	$self->{channel}{$channel->{id}} = $channel;
		2888	$self->ext_msg (channel_info => $channel);
		2889	}
		2890
		2891	$channel = $channel->{id};
		2892	}
		2893
		2894	return unless @extra || length $msg;
		2895
		2896	# default colour, mask it out
		2897	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2898	if $color & cf::NDI_DEF;
		2899
		2900	my $pkt = "msg "
		2901	. $self->{json_coder}->encode (
		2902	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2903	);
		2904
		2905	# try lzf for large packets
		2906	$pkt = "lzf " . Compress::LZF::compress $pkt
		2907	if 1024 <= length $pkt and $self->{can_lzf};
		2908
		2909	# split very large packets
		2910	if (8192 < length $pkt and $self->{can_lzf}) {
		2911	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2912	$pkt = "frag";
		2913	}
		2914
		2915	$self->send_packet ($pkt);
		2916	}
		2917
		2918	=item $client->ext_msg ($type, @msg)
		2919
		2920	Sends an ext event to the client.
		2921
		2922	=cut
		2923
		2924	sub cf::client::ext_msg($$@) {
		2925	my ($self, $type, @msg) = @_;
		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2929	} elsif ($self->extcmd == 1) { # TODO: remove
		2930	push @msg, msgtype => "event_$type";
		2931	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2932	}
		2933	}
		2934
		2935	=item $client->ext_reply ($msgid, @msg)
		2936
		2937	Sends an ext reply to the client.
		2938
		2939	=cut
		2940
		2941	sub cf::client::ext_reply($$@) {
		2942	my ($self, $id, @msg) = @_;
		2943
		2944	if ($self->extcmd == 2) {
		2945	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2946	} elsif ($self->extcmd == 1) {
		2947	#TODO: version 1, remove
		2948	unshift @msg, msgtype => "reply", msgid => $id;
		2949	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2950	}
		2951	}
1951		2952
1952	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
1953		2954
1954	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
1955	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1956	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1957		2958
1958	Queries can fail, so check the return code. Or don't, as queries will become	2959	Queries can fail, so check the return code. Or don't, as queries will
1959	reliable at some point in the future.	2960	become reliable at some point in the future.
1960		2961
1961	=cut	2962	=cut
1962		2963
1963	sub cf::client::query {	2964	sub cf::client::query {
1964	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
1972	utf8::encode $text;	2973	utf8::encode $text;
1973	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1974		2975
1975	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
1976	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
1977	}	2980	}
1978		2981
1979	cf::client->attach (	2982	cf::client->attach (
		2983	on_connect => sub {
		2984	my ($ns) = @_;
		2985
		2986	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2987	},
1980	on_reply => sub {	2988	on_reply => sub {
1981	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
1982		2990
1983	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
1984	# get handled first	2992	# get handled first
1985	my $queue = delete $ns->{query_queue}	2993	my $queue = delete $ns->{query_queue}
1986	or return; # be conservative, not sure how that can happen, but we saw a crash here	2994	or return; # be conservative, not sure how that can happen, but we saw a crash here
1987		2995
1988	(shift @$queue)->[1]->($msg);	2996	(shift @$queue)->[1]->($msg);
		2997	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1989		2998
1990	push @{ $ns->{query_queue} }, @$queue;	2999	push @{ $ns->{query_queue} }, @$queue;
1991		3000
1992	if (@{ $ns->{query_queue} } == @$queue) {	3001	if (@{ $ns->{query_queue} } == @$queue) {
1993	if (@$queue) {	3002	if (@$queue) {
…		…
1995	} else {	3004	} else {
1996	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1997	}	3006	}
1998	}	3007	}
1999	},	3008	},
		3009	on_exticmd => sub {
		3010	my ($ns, $buf) = @_;
		3011
		3012	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3013
		3014	if (ref $msg) {
		3015	my ($type, $reply, @payload) =
		3016	"ARRAY" eq ref $msg
		3017	? @$msg
		3018	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3019
		3020	my @reply;
		3021
		3022	if (my $cb = $EXTICMD{$type}) {
		3023	@reply = $cb->($ns, @payload);
		3024	}
		3025
		3026	$ns->ext_reply ($reply, @reply)
		3027	if $reply;
		3028
		3029	} else {
		3030	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3031	}
		3032
		3033	cf::override;
		3034	},
2000	);	3035	);
2001		3036
2002	=item $client->async (\&cb)	3037	=item $client->async (\&cb)
2003		3038
2004	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
…		…
2045	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
2046	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
2047		3082
2048	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
2049		3084
2050	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3085	$safe->permit_only (Opcode::opset qw(
		3086	:base_core :base_mem :base_orig :base_math
		3087	grepstart grepwhile mapstart mapwhile
		3088	sort time
		3089	));
2051		3090
2052	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
2053		3092
2054	=pod	3093	=pod
2055		3094
2056	The following fucntions and emthods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
2057		3096
2058	cf::object contr pay_amount pay_player map	3097	cf::object
		3098	contr pay_amount pay_player map x y force_find force_add destroy
		3099	insert remove name archname title slaying race decrease split
		3100	value
		3101
2059	cf::object::player player	3102	cf::object::player
2060	cf::player peaceful	3103	player
2061	cf::map trigger	3104
		3105	cf::player
		3106	peaceful
		3107
		3108	cf::map
		3109	trigger
2062		3110
2063	=cut	3111	=cut
2064		3112
2065	for (	3113	for (
2066	["cf::object" => qw(contr pay_amount pay_player map)],	3114	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3115	insert remove inv nrof name archname title slaying race
		3116	decrease split destroy change_exp value msg lore send_msg)],
2067	["cf::object::player" => qw(player)],	3117	["cf::object::player" => qw(player)],
2068	["cf::player" => qw(peaceful)],	3118	["cf::player" => qw(peaceful send_msg)],
2069	["cf::map" => qw(trigger)],	3119	["cf::map" => qw(trigger)],
2070	) {	3120	) {
2071	no strict 'refs';	3121	no strict 'refs';
2072	my ($pkg, @funs) = @$_;	3122	my ($pkg, @funs) = @$_;
2073	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2090	my ($code, %vars) = @_;	3140	my ($code, %vars) = @_;
2091		3141
2092	my $qcode = $code;	3142	my $qcode = $code;
2093	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3143	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2094	$qcode =~ s/\n/\\n/g;	3144	$qcode =~ s/\n/\\n/g;
		3145
		3146	%vars = (_dummy => 0) unless %vars;
2095		3147
2096	local $_;	3148	local $_;
2097	local @safe::cf::_safe_eval_args = values %vars;	3149	local @safe::cf::_safe_eval_args = values %vars;
2098		3150
2099	my $eval =	3151	my $eval =
…		…
2142	=back	3194	=back
2143		3195
2144	=cut	3196	=cut
2145		3197
2146	#############################################################################	3198	#############################################################################
		3199	# the server's init and main functions
2147		3200
2148	=head2 EXTENSION DATABASE SUPPORT	3201	sub load_facedata($) {
		3202	my ($path) = @_;
2149		3203
2150	Crossfire maintains a very simple database for extension use. It can	3204	# HACK to clear player env face cache, we need some signal framework
2151	currently store anything that can be serialised using Storable, which	3205	# for this (global event?)
2152	excludes objects.	3206	%ext::player_env::MUSIC_FACE_CACHE = ();
2153		3207
2154	The parameter C<$family> should best start with the name of the extension	3208	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2155	using it, it should be unique.
2156		3209
2157	=over 4	3210	warn "loading facedata from $path\n";
2158		3211
2159	=item $hashref = cf::db_get $family	3212	my $facedata;
		3213	0 < aio_load $path, $facedata
		3214	or die "$path: $!";
2160		3215
2161	Return a hashref for use by the extension C<$family>, which can be	3216	$facedata = Coro::Storable::thaw $facedata;
2162	modified. After modifications, you have to call C<cf::db_dirty> or
2163	C<cf::db_sync>.
2164		3217
2165	=item $value = cf::db_get $family => $key	3218	$facedata->{version} == 2
		3219	or cf::cleanup "$path: version mismatch, cannot proceed.";
2166		3220
2167	Returns a single value from the database	3221	# patch in the exptable
2168		3222	$facedata->{resource}{"res/exp_table"} = {
2169	=item cf::db_put $family => $hashref	3223	type => FT_RSRC,
2170		3224	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2171	Stores the given family hashref into the database. Updates are delayed, if
2172	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2173
2174	=item cf::db_put $family => $key => $value
2175
2176	Stores the given C<$value> in the family hash. Updates are delayed, if you
2177	want the data to be synced to disk immediately, use C<cf::db_sync>.
2178
2179	=item cf::db_dirty
2180
2181	Marks the database as dirty, to be updated at a later time.
2182
2183	=item cf::db_sync
2184
2185	Immediately write the database to disk I<if it is dirty>.
2186
2187	=cut
2188
2189	our $DB;
2190
2191	{
2192	my $path = cf::localdir . "/database.pst";
2193
2194	sub db_load() {
2195	$DB = stat $path ? Storable::retrieve $path : { };
2196	}	3225	};
		3226	cf::cede_to_tick;
2197		3227
2198	my $pid;
2199
2200	sub db_save() {
2201	waitpid $pid, 0 if $pid;
2202	if (0 == ($pid = fork)) {
2203	$DB->{_meta}{version} = 1;
2204	Storable::nstore $DB, "$path~";
2205	rename "$path~", $path;
2206	cf::_exit 0 if defined $pid;
2207	}
2208	}	3228	{
		3229	my $faces = $facedata->{faceinfo};
2209		3230
2210	my $dirty;	3231	while (my ($face, $info) = each %$faces) {
		3232	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2211		3233
2212	sub db_sync() {	3234	cf::face::set_visibility $idx, $info->{visibility};
2213	db_save if $dirty;	3235	cf::face::set_magicmap $idx, $info->{magicmap};
2214	undef $dirty;	3236	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2215	}	3237	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2216		3238
2217	my $idle = Event->idle (	3239	cf::cede_to_tick;
2218	reentrant => 0,
2219	min => 10,
2220	max => 20,
2221	repeat => 0,
2222	data => WF_AUTOCANCEL,
2223	cb => \&db_sync,
2224	);
2225
2226	sub db_dirty() {
2227	$dirty = 1;
2228	$idle->start;
2229	}
2230
2231	sub db_get($;$) {
2232	@_ >= 2
2233	? $DB->{$_[0]}{$_[1]}
2234	: ($DB->{$_[0]} ||= { })
2235	}
2236
2237	sub db_put($$;$) {
2238	if (@_ >= 3) {
2239	$DB->{$_[0]}{$_[1]} = $_[2];
2240	} else {
2241	$DB->{$_[0]} = $_[1];
2242	}
2243	db_dirty;
2244	}
2245
2246	cf::global->attach (
2247	prio => 10000,
2248	on_cleanup => sub {
2249	db_sync;
2250	},	3240	}
2251	);
2252	}
2253		3241
2254	#############################################################################	3242	while (my ($face, $info) = each %$faces) {
2255	# the server's main()	3243	next unless $info->{smooth};
2256		3244
2257	sub cfg_load {	3245	my $idx = cf::face::find $face
		3246	or next;
		3247
		3248	if (my $smooth = cf::face::find $info->{smooth}) {
		3249	cf::face::set_smooth $idx, $smooth;
		3250	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3251	} else {
		3252	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3253	}
		3254
		3255	cf::cede_to_tick;
		3256	}
		3257	}
		3258
		3259	{
		3260	my $anims = $facedata->{animinfo};
		3261
		3262	while (my ($anim, $info) = each %$anims) {
		3263	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3264	cf::cede_to_tick;
		3265	}
		3266
		3267	cf::anim::invalidate_all; # d'oh
		3268	}
		3269
		3270	{
		3271	# TODO: for gcfclient pleasure, we should give resources
		3272	# that gcfclient doesn't grok a >10000 face index.
		3273	my $res = $facedata->{resource};
		3274
		3275	while (my ($name, $info) = each %$res) {
		3276	if (defined $info->{type}) {
		3277	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3278	my $data;
		3279
		3280	if ($info->{type} & 1) {
		3281	# prepend meta info
		3282
		3283	my $meta = $enc->encode ({
		3284	name => $name,
		3285	%{ $info->{meta} || {} },
		3286	});
		3287
		3288	$data = pack "(w/a*)*", $meta, $info->{data};
		3289	} else {
		3290	$data = $info->{data};
		3291	}
		3292
		3293	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3294	cf::face::set_type $idx, $info->{type};
		3295	} else {
		3296	$RESOURCE{$name} = $info;
		3297	}
		3298
		3299	cf::cede_to_tick;
		3300	}
		3301	}
		3302
		3303	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3304
		3305	1
		3306	}
		3307
		3308	cf::global->attach (on_resource_update => sub {
		3309	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3310	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3311
		3312	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3313	my $sound = $soundconf->{compat}[$_]
		3314	or next;
		3315
		3316	my $face = cf::face::find "sound/$sound->[1]";
		3317	cf::sound::set $sound->[0] => $face;
		3318	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3319	}
		3320
		3321	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3322	my $face = cf::face::find "sound/$v";
		3323	cf::sound::set $k => $face;
		3324	}
		3325	}
		3326	});
		3327
		3328	register_exticmd fx_want => sub {
		3329	my ($ns, $want) = @_;
		3330
		3331	while (my ($k, $v) = each %$want) {
		3332	$ns->fx_want ($k, $v);
		3333	}
		3334	};
		3335
		3336	sub load_resource_file($) {
		3337	my $guard = lock_acquire "load_resource_file";
		3338
		3339	my $status = load_resource_file_ $_[0];
		3340	get_slot 0.1, 100;
		3341	cf::arch::commit_load;
		3342
		3343	$status
		3344	}
		3345
		3346	sub reload_regions {
		3347	# HACK to clear player env face cache, we need some signal framework
		3348	# for this (global event?)
		3349	%ext::player_env::MUSIC_FACE_CACHE = ();
		3350
		3351	load_resource_file "$MAPDIR/regions"
		3352	or die "unable to load regions file\n";
		3353
		3354	for (cf::region::list) {
		3355	$_->{match} = qr/$_->{match}/
		3356	if exists $_->{match};
		3357	}
		3358	}
		3359
		3360	sub reload_facedata {
		3361	load_facedata "$DATADIR/facedata"
		3362	or die "unable to load facedata\n";
		3363	}
		3364
		3365	sub reload_archetypes {
		3366	load_resource_file "$DATADIR/archetypes"
		3367	or die "unable to load archetypes\n";
		3368	}
		3369
		3370	sub reload_treasures {
		3371	load_resource_file "$DATADIR/treasures"
		3372	or die "unable to load treasurelists\n";
		3373	}
		3374
		3375	sub reload_resources {
		3376	warn "reloading resource files...\n";
		3377
		3378	reload_facedata;
		3379	reload_archetypes;
		3380	reload_regions;
		3381	reload_treasures;
		3382
		3383	warn "finished reloading resource files\n";
		3384	}
		3385
		3386	sub reload_config {
2258	open my $fh, "<:utf8", cf::confdir . "/config"	3387	open my $fh, "<:utf8", "$CONFDIR/config"
2259	or return;	3388	or return;
2260		3389
2261	local $/;	3390	local $/;
2262	*CFG = YAML::Syck::Load <$fh>;	3391	*CFG = YAML::Load <$fh>;
2263		3392
2264	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3393	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2265		3394
2266	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3395	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2267	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3396	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2273	};	3402	};
2274	warn $@ if $@;	3403	warn $@ if $@;
2275	}	3404	}
2276	}	3405	}
2277		3406
		3407	sub pidfile() {
		3408	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3409	or die "$PIDFILE: $!";
		3410	flock $fh, &Fcntl::LOCK_EX
		3411	or die "$PIDFILE: flock: $!";
		3412	$fh
		3413	}
		3414
		3415	# make sure only one server instance is running at any one time
		3416	sub atomic {
		3417	my $fh = pidfile;
		3418
		3419	my $pid = <$fh>;
		3420	kill 9, $pid if $pid > 0;
		3421
		3422	seek $fh, 0, 0;
		3423	print $fh $$;
		3424	}
		3425
		3426	sub main_loop {
		3427	warn "EV::loop starting\n";
		3428	if (1) {
		3429	EV::loop;
		3430	}
		3431	warn "EV::loop returned\n";
		3432	goto &main_loop unless $REALLY_UNLOOP;
		3433	}
		3434
2278	sub main {	3435	sub main {
		3436	cf::init_globals; # initialise logging
		3437
		3438	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3439	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3440	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3441	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3442
		3443	cf::init_experience;
		3444	cf::init_anim;
		3445	cf::init_attackmess;
		3446	cf::init_dynamic;
		3447
		3448	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3449
2279	# we must not ever block the main coroutine	3450	# we must not ever block the main coroutine
2280	local $Coro::idle = sub {	3451	local $Coro::idle = sub {
2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3452	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2282	(async {	3453	(async {
2283	Event::one_event;	3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
2284	})->prio (Coro::PRIO_MAX);	3456	})->prio (Coro::PRIO_MAX);
2285	};	3457	};
2286		3458
2287	cfg_load;	3459	evthread_start IO::AIO::poll_fileno;
2288	db_load;	3460
		3461	cf::sync_job {
		3462	reload_resources;
		3463	reload_config;
		3464	db_init;
		3465
		3466	cf::load_settings;
		3467	cf::load_materials;
		3468	cf::init_uuid;
		3469	cf::init_signals;
		3470	cf::init_commands;
		3471	cf::init_skills;
		3472
		3473	cf::init_beforeplay;
		3474
		3475	atomic;
		3476
2289	load_extensions;	3477	load_extensions;
2290		3478
2291	$TICK_WATCHER->start;	3479	utime time, time, $RUNTIMEFILE;
2292	Event::loop;	3480
		3481	# no (long-running) fork's whatsoever before this point(!)
		3482	use POSIX ();
		3483	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3484
		3485	(pop @POST_INIT)->(0) while @POST_INIT;
		3486	};
		3487
		3488	main_loop;
2293	}	3489	}
2294		3490
2295	#############################################################################	3491	#############################################################################
2296	# initialisation and cleanup	3492	# initialisation and cleanup
2297		3493
2298	# install some emergency cleanup handlers	3494	# install some emergency cleanup handlers
2299	BEGIN {	3495	BEGIN {
		3496	our %SIGWATCHER = ();
2300	for my $signal (qw(INT HUP TERM)) {	3497	for my $signal (qw(INT HUP TERM)) {
2301	Event->signal (	3498	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2302	reentrant => 0,
2303	data => WF_AUTOCANCEL,
2304	signal => $signal,
2305	prio => 0,
2306	cb => sub {
2307	cf::cleanup "SIG$signal";	3499	cf::cleanup "SIG$signal";
2308	},
2309	);	3500	};
		3501	}
		3502	}
		3503
		3504	sub write_runtime_sync {
		3505	# first touch the runtime file to show we are still running:
		3506	# the fsync below can take a very very long time.
		3507
		3508	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3509
		3510	my $guard = cf::lock_acquire "write_runtime";
		3511
		3512	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3513	or return;
		3514
		3515	my $value = $cf::RUNTIME + 90 + 10;
		3516	# 10 is the runtime save interval, for a monotonic clock
		3517	# 60 allows for the watchdog to kill the server.
		3518
		3519	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3520	and return;
		3521
		3522	# always fsync - this file is important
		3523	aio_fsync $fh
		3524	and return;
		3525
		3526	# touch it again to show we are up-to-date
		3527	aio_utime $fh, undef, undef;
		3528
		3529	close $fh
		3530	or return;
		3531
		3532	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3533	and return;
		3534
		3535	warn "runtime file written.\n";
		3536
2310	}	3537	1
		3538	}
		3539
		3540	our $uuid_lock;
		3541	our $uuid_skip;
		3542
		3543	sub write_uuid_sync($) {
		3544	$uuid_skip ||= $_[0];
		3545
		3546	return if $uuid_lock;
		3547	local $uuid_lock = 1;
		3548
		3549	my $uuid = "$LOCALDIR/uuid";
		3550
		3551	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3552	or return;
		3553
		3554	my $value = uuid_seq uuid_cur;
		3555
		3556	unless ($value) {
		3557	warn "cowardly refusing to write zero uuid value!\n";
		3558	return;
		3559	}
		3560
		3561	my $value = uuid_str $value + $uuid_skip;
		3562	$uuid_skip = 0;
		3563
		3564	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3565	and return;
		3566
		3567	# always fsync - this file is important
		3568	aio_fsync $fh
		3569	and return;
		3570
		3571	close $fh
		3572	or return;
		3573
		3574	aio_rename "$uuid~", $uuid
		3575	and return;
		3576
		3577	warn "uuid file written ($value).\n";
		3578
		3579	1
		3580
		3581	}
		3582
		3583	sub write_uuid($$) {
		3584	my ($skip, $sync) = @_;
		3585
		3586	$sync ? write_uuid_sync $skip
		3587	: async { write_uuid_sync $skip };
2311	}	3588	}
2312		3589
2313	sub emergency_save() {	3590	sub emergency_save() {
2314	my $freeze_guard = cf::freeze_mainloop;	3591	my $freeze_guard = cf::freeze_mainloop;
2315		3592
2316	warn "enter emergency perl save\n";	3593	warn "emergency_perl_save: enter\n";
2317		3594
2318	cf::sync_job {	3595	cf::sync_job {
		3596	# this is a trade-off: we want to be very quick here, so
		3597	# save all maps without fsync, and later call a global sync
		3598	# (which in turn might be very very slow)
		3599	local $USE_FSYNC = 0;
		3600
2319	# use a peculiar iteration method to avoid tripping on perl	3601	# use a peculiar iteration method to avoid tripping on perl
2320	# refcount bugs in for. also avoids problems with players	3602	# refcount bugs in for. also avoids problems with players
2321	# and maps saved/destroyed asynchronously.	3603	# and maps saved/destroyed asynchronously.
2322	warn "begin emergency player save\n";	3604	warn "emergency_perl_save: begin player save\n";
2323	for my $login (keys %cf::PLAYER) {	3605	for my $login (keys %cf::PLAYER) {
2324	my $pl = $cf::PLAYER{$login} or next;	3606	my $pl = $cf::PLAYER{$login} or next;
2325	$pl->valid or next;	3607	$pl->valid or next;
		3608	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2326	$pl->save;	3609	$pl->save;
2327	}	3610	}
2328	warn "end emergency player save\n";	3611	warn "emergency_perl_save: end player save\n";
2329		3612
2330	warn "begin emergency map save\n";	3613	warn "emergency_perl_save: begin map save\n";
2331	for my $path (keys %cf::MAP) {	3614	for my $path (keys %cf::MAP) {
2332	my $map = $cf::MAP{$path} or next;	3615	my $map = $cf::MAP{$path} or next;
2333	$map->valid or next;	3616	$map->valid or next;
2334	$map->save;	3617	$map->save;
2335	}	3618	}
2336	warn "end emergency map save\n";	3619	warn "emergency_perl_save: end map save\n";
		3620
		3621	warn "emergency_perl_save: begin database checkpoint\n";
		3622	BDB::db_env_txn_checkpoint $DB_ENV;
		3623	warn "emergency_perl_save: end database checkpoint\n";
		3624
		3625	warn "emergency_perl_save: begin write uuid\n";
		3626	write_uuid_sync 1;
		3627	warn "emergency_perl_save: end write uuid\n";
2337	};	3628	};
2338		3629
		3630	warn "emergency_perl_save: starting sync()\n";
		3631	IO::AIO::aio_sync sub {
		3632	warn "emergency_perl_save: finished sync()\n";
		3633	};
		3634
2339	warn "leave emergency perl save\n";	3635	warn "emergency_perl_save: leave\n";
2340	}	3636	}
2341		3637
		3638	sub post_cleanup {
		3639	my ($make_core) = @_;
		3640
		3641	warn Carp::longmess "post_cleanup backtrace"
		3642	if $make_core;
		3643
		3644	my $fh = pidfile;
		3645	unlink $PIDFILE if <$fh> == $$;
		3646	}
		3647
		3648	# a safer delete_package, copied from Symbol
		3649	sub clear_package($) {
		3650	my $pkg = shift;
		3651
		3652	# expand to full symbol table name if needed
		3653	unless ($pkg =~ /^main::.*::$/) {
		3654	$pkg = "main$pkg" if $pkg =~ /^::/;
		3655	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3656	$pkg .= '::' unless $pkg =~ /::$/;
		3657	}
		3658
		3659	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3660	my $stem_symtab = *{$stem}{HASH};
		3661
		3662	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3663	or return;
		3664
		3665	# clear all symbols
		3666	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3667	for my $name (keys %$leaf_symtab) {
		3668	_gv_clear *{"$pkg$name"};
		3669	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3670	}
		3671	warn "cleared package $pkg\n";#d#
		3672	}
		3673
2342	sub reload() {	3674	sub do_reload_perl() {
2343	# can/must only be called in main	3675	# can/must only be called in main
2344	if ($Coro::current != $Coro::main) {	3676	if ($Coro::current != $Coro::main) {
2345	warn "can only reload from main coroutine";	3677	warn "can only reload from main coroutine";
2346	return;	3678	return;
2347	}	3679	}
2348		3680
		3681	return if $RELOAD++;
		3682
		3683	my $t1 = EV::time;
		3684
		3685	while ($RELOAD) {
2349	warn "reloading...";	3686	warn "reloading...";
2350		3687
2351	warn "cancelling server ticker";	3688	warn "entering sync_job";
2352	$TICK_WATCHER->cancel;
2353		3689
		3690	cf::sync_job {
		3691	cf::write_runtime_sync; # external watchdog should not bark
2354	cf::emergency_save;	3692	cf::emergency_save;
		3693	cf::write_runtime_sync; # external watchdog should not bark
2355		3694
2356	eval {	3695	warn "syncing database to disk";
		3696	BDB::db_env_txn_checkpoint $DB_ENV;
		3697
2357	# if anything goes wrong in here, we should simply crash as we already saved	3698	# if anything goes wrong in here, we should simply crash as we already saved
2358		3699
2359	warn "syncing database to disk";
2360	cf::db_sync;
2361
2362	warn "cancelling all WF_AUTOCANCEL watchers";
2363	for (Event::all_watchers) {
2364	$_->cancel if $_->data & WF_AUTOCANCEL;
2365	}
2366
2367	warn "flushing outstanding aio requests";	3700	warn "flushing outstanding aio requests";
2368	for (;;) {	3701	while (IO::AIO::nreqs || BDB::nreqs) {
2369	IO::AIO::flush;	3702	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2370	Coro::cede;
2371	last unless IO::AIO::nreqs;
2372	warn "iterate...";
2373	}
2374
2375	warn "cancelling all extension coros";
2376	$_->cancel for values %EXT_CORO;
2377	%EXT_CORO = ();
2378
2379	warn "removing commands";
2380	%COMMAND = ();
2381
2382	warn "removing ext commands";
2383	%EXTCMD = ();
2384
2385	warn "unloading/nuking all extensions";
2386	for my $pkg (@EXTS) {
2387	warn "... unloading $pkg";
2388
2389	if (my $cb = $pkg->can ("unload")) {
2390	eval {
2391	$cb->($pkg);
2392	1
2393	} or warn "$pkg unloaded, but with errors: $@";
2394	}	3703	}
2395		3704
2396	warn "... nuking $pkg";	3705	warn "cancelling all extension coros";
2397	Symbol::delete_package $pkg;	3706	$_->cancel for values %EXT_CORO;
2398	}	3707	%EXT_CORO = ();
2399		3708
2400	warn "unloading all perl modules loaded from $LIBDIR";	3709	warn "removing commands";
2401	while (my ($k, $v) = each %INC) {	3710	%COMMAND = ();
2402	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2403		3711
		3712	warn "removing ext/exti commands";
		3713	%EXTCMD = ();
		3714	%EXTICMD = ();
		3715
		3716	warn "unloading/nuking all extensions";
		3717	for my $pkg (@EXTS) {
2404	warn "... unloading $k";	3718	warn "... unloading $pkg";
2405	delete $INC{$k};
2406		3719
2407	$k =~ s/\.pm$//;
2408	$k =~ s/\//::/g;
2409
2410	if (my $cb = $k->can ("unload_module")) {	3720	if (my $cb = $pkg->can ("unload")) {
		3721	eval {
2411	$cb->();	3722	$cb->($pkg);
		3723	1
		3724	} or warn "$pkg unloaded, but with errors: $@";
		3725	}
		3726
		3727	warn "... clearing $pkg";
		3728	clear_package $pkg;
2412	}	3729	}
2413		3730
2414	Symbol::delete_package $k;	3731	warn "unloading all perl modules loaded from $LIBDIR";
		3732	while (my ($k, $v) = each %INC) {
		3733	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3734
		3735	warn "... unloading $k";
		3736	delete $INC{$k};
		3737
		3738	$k =~ s/\.pm$//;
		3739	$k =~ s/\//::/g;
		3740
		3741	if (my $cb = $k->can ("unload_module")) {
		3742	$cb->();
		3743	}
		3744
		3745	clear_package $k;
2415	}	3746	}
2416		3747
2417	warn "getting rid of safe::, as good as possible";	3748	warn "getting rid of safe::, as good as possible";
2418	Symbol::delete_package "safe::$_"	3749	clear_package "safe::$_"
2419	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3750	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2420		3751
2421	warn "unloading cf.pm \"a bit\"";	3752	warn "unloading cf.pm \"a bit\"";
2422	delete $INC{"cf.pm"};	3753	delete $INC{"cf.pm"};
		3754	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2423		3755
2424	# don't, removes xs symbols, too,	3756	# don't, removes xs symbols, too,
2425	# and global variables created in xs	3757	# and global variables created in xs
2426	#Symbol::delete_package __PACKAGE__;	3758	#clear_package __PACKAGE__;
2427		3759
2428	warn "unload completed, starting to reload now";	3760	warn "unload completed, starting to reload now";
2429		3761
2430	warn "reloading cf.pm";	3762	warn "reloading cf.pm";
2431	require cf;	3763	require cf;
2432	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3764	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2433		3765
2434	warn "loading config and database again";	3766	warn "loading config and database again";
2435	cf::cfg_load;	3767	cf::reload_config;
2436	cf::db_load;
2437		3768
2438	warn "loading extensions";	3769	warn "loading extensions";
2439	cf::load_extensions;	3770	cf::load_extensions;
2440		3771
		3772	if ($REATTACH_ON_RELOAD) {
2441	warn "reattaching attachments to objects/players";	3773	warn "reattaching attachments to objects/players";
2442	_global_reattach;	3774	_global_reattach; # objects, sockets
2443	warn "reattaching attachments to maps";	3775	warn "reattaching attachments to maps";
2444	reattach $_ for values %MAP;	3776	reattach $_ for values %MAP;
		3777	warn "reattaching attachments to players";
		3778	reattach $_ for values %PLAYER;
		3779	}
2445		3780
2446	warn "restarting server ticker";	3781	warn "running post_init jobs";
		3782	(pop @POST_INIT)->(1) while @POST_INIT;
2447		3783
2448	$TICK_WATCHER->start;	3784	warn "leaving sync_job";
		3785
		3786	1
		3787	} or do {
		3788	warn $@;
		3789	cf::cleanup "error while reloading, exiting.";
		3790	};
		3791
		3792	warn "reloaded";
		3793	--$RELOAD;
		3794	}
		3795
		3796	$t1 = EV::time - $t1;
		3797	warn "reload completed in ${t1}s\n";
		3798	};
		3799
		3800	our $RELOAD_WATCHER; # used only during reload
		3801
		3802	sub reload_perl() {
		3803	# doing reload synchronously and two reloads happen back-to-back,
		3804	# coro crashes during coro_state_free->destroy here.
		3805
		3806	$RELOAD_WATCHER ||= cf::async {
		3807	Coro::AIO::aio_wait cache_extensions;
		3808
		3809	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3810	do_reload_perl;
		3811	undef $RELOAD_WATCHER;
		3812	};
2449	};	3813	};
2450		3814	}
2451	if ($@) {
2452	warn $@;
2453	warn "error while reloading, exiting.";
2454	exit 1;
2455	}
2456
2457	warn "reloaded";
2458	};
2459
2460	our $RELOAD_WATCHER; # used only during reload
2461		3815
2462	register_command "reload" => sub {	3816	register_command "reload" => sub {
2463	my ($who, $arg) = @_;	3817	my ($who, $arg) = @_;
2464		3818
2465	if ($who->flag (FLAG_WIZ)) {	3819	if ($who->flag (FLAG_WIZ)) {
2466	$who->message ("reloading server.");	3820	$who->message ("reloading server.");
2467		3821	async {
2468	# doing reload synchronously and two reloads happen back-to-back,	3822	$Coro::current->{desc} = "perl_reload";
2469	# coro crashes during coro_state_free->destroy here.
2470
2471	$RELOAD_WATCHER ||= Event->timer (
2472	reentrant => 0,
2473	after => 0,
2474	data => WF_AUTOCANCEL,
2475	cb => sub {
2476	reload;	3823	reload_perl;
2477	undef $RELOAD_WATCHER;
2478	},
2479	);	3824	};
2480	}	3825	}
2481	};	3826	};
2482		3827
2483	unshift @INC, $LIBDIR;	3828	unshift @INC, $LIBDIR;
2484		3829
2485	my $bug_warning = 0;	3830	my $bug_warning = 0;
2486		3831
2487	$TICK_WATCHER = Event->timer (	3832	our @WAIT_FOR_TICK;
2488	reentrant => 0,	3833	our @WAIT_FOR_TICK_BEGIN;
2489	parked => 1,	3834
2490	prio => 0,	3835	sub wait_for_tick {
2491	at => $NEXT_TICK || $TICK,	3836	return if tick_inhibit || $Coro::current == $Coro::main;
2492	data => WF_AUTOCANCEL,	3837
2493	cb => sub {	3838	my $signal = new Coro::Signal;
		3839	push @WAIT_FOR_TICK, $signal;
		3840	$signal->wait;
		3841	}
		3842
		3843	sub wait_for_tick_begin {
		3844	return if tick_inhibit || $Coro::current == $Coro::main;
		3845
		3846	my $signal = new Coro::Signal;
		3847	push @WAIT_FOR_TICK_BEGIN, $signal;
		3848	$signal->wait;
		3849	}
		3850
		3851	sub tick {
2494	if ($Coro::current != $Coro::main) {	3852	if ($Coro::current != $Coro::main) {
2495	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2496	unless ++$bug_warning > 10;	3854	unless ++$bug_warning > 10;
2497	return;	3855	return;
2498	}	3856	}
2499		3857
2500	$NOW = Event::time;
2501
2502	cf::server_tick; # one server iteration	3858	cf::server_tick; # one server iteration
2503	$RUNTIME += $TICK;
2504	$NEXT_TICK += $TICK;
2505		3859
2506	$WAIT_FOR_TICK->broadcast;	3860	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2507	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3861	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2508		3862	Coro::async_pool {
2509	Event::sweep;	3863	$Coro::current->{desc} = "runtime saver";
2510	Coro::cede_notself;
2511
2512	# my $AFTER = Event::time;
2513	# warn $AFTER - $NOW;#d#
2514
2515	# if we are delayed by four ticks or more, skip them all
2516	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2517
2518	$TICK_WATCHER->at ($NEXT_TICK);
2519	$TICK_WATCHER->start;
2520	},
2521	);
2522
2523	IO::AIO::max_poll_time $TICK * 0.1;
2524
2525	undef $Coro::AIO::WATCHER;
2526	$AIO_POLL_WATCHER = Event->io (
2527	reentrant => 0,
2528	fd => IO::AIO::poll_fileno,
2529	poll => 'r',
2530	prio => 6,
2531	data => WF_AUTOCANCEL,
2532	cb => \&IO::AIO::poll_cb,
2533	);
2534
2535	$WRITE_RUNTIME_WATCHER = Event->timer (
2536	reentrant => 0,
2537	data => WF_AUTOCANCEL,
2538	after => 1,
2539	interval => 10,
2540	prio => 6, # keep it lowest so it acts like a watchdog
2541	cb => Coro::unblock_sub {
2542	write_runtime	3864	write_runtime_sync
2543	or warn "ERROR: unable to write runtime file: $!";	3865	or warn "ERROR: unable to write runtime file: $!";
		3866	};
2544	},	3867	}
2545	);	3868
		3869	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3870	$sig->send;
		3871	}
		3872	while (my $sig = shift @WAIT_FOR_TICK) {
		3873	$sig->send;
		3874	}
		3875
		3876	$LOAD = ($NOW - $TICK_START) / $TICK;
		3877	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3878
		3879	if (0) {
		3880	if ($NEXT_TICK) {
		3881	my $jitter = $TICK_START - $NEXT_TICK;
		3882	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3883	warn "jitter $JITTER\n";#d#
		3884	}
		3885	}
		3886	}
		3887
		3888	{
		3889	# configure BDB
		3890
		3891	BDB::min_parallel 8;
		3892	BDB::max_poll_reqs $TICK * 0.1;
		3893	$AnyEvent::BDB::WATCHER->priority (1);
		3894
		3895	unless ($DB_ENV) {
		3896	$DB_ENV = BDB::db_env_create;
		3897	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3898	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3899	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3900	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3901	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3902
		3903	cf::sync_job {
		3904	eval {
		3905	BDB::db_env_open
		3906	$DB_ENV,
		3907	$BDBDIR,
		3908	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3909	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3910	0666;
		3911
		3912	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3913	};
		3914
		3915	cf::cleanup "db_env_open(db): $@" if $@;
		3916	};
		3917	}
		3918
		3919	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3920	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3921	};
		3922	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3923	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3924	};
		3925	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3926	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3927	};
		3928	}
		3929
		3930	{
		3931	# configure IO::AIO
		3932
		3933	IO::AIO::min_parallel 8;
		3934	IO::AIO::max_poll_time $TICK * 0.1;
		3935	undef $AnyEvent::AIO::WATCHER;
		3936	}
		3937
		3938	my $_log_backtrace;
		3939
		3940	sub _log_backtrace {
		3941	my ($msg, @addr) = @_;
		3942
		3943	$msg =~ s/\n//;
		3944
		3945	# limit the # of concurrent backtraces
		3946	if ($_log_backtrace < 2) {
		3947	++$_log_backtrace;
		3948	my $perl_bt = Carp::longmess $msg;
		3949	async {
		3950	$Coro::current->{desc} = "abt $msg";
		3951
		3952	my @bt = fork_call {
		3953	@addr = map { sprintf "%x", $_ } @addr;
		3954	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3955	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3956	or die "addr2line: $!";
		3957
		3958	my @funcs;
		3959	my @res = <$fh>;
		3960	chomp for @res;
		3961	while (@res) {
		3962	my ($func, $line) = splice @res, 0, 2, ();
		3963	push @funcs, "[$func] $line";
		3964	}
		3965
		3966	@funcs
		3967	};
		3968
		3969	LOG llevInfo, "[ABT] $perl_bt\n";
		3970	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3971	LOG llevInfo, "[ABT] $_\n" for @bt;
		3972	--$_log_backtrace;
		3973	};
		3974	} else {
		3975	LOG llevInfo, "[ABT] $msg\n";
		3976	LOG llevInfo, "[ABT] [suppressed]\n";
		3977	}
		3978	}
		3979
		3980	# load additional modules
		3981	require "cf/$_.pm" for @EXTRA_MODULES;
2546		3982
2547	END { cf::emergency_save }	3983	END { cf::emergency_save }
2548		3984
2549	1	3985	1
2550		3986

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