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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.199 by root, Mon Jan 29 14:46:01 2007 UTC vs.
Revision 1.486 by root, Thu Oct 15 21:56:50 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 it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# 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 Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
12		37
		38	use Guard ();
13	use Coro 3.5 ();	39	use Coro ();
		40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
14	use Coro::Event;	43	use Coro::AnyEvent;
15	use Coro::Timer;	44	use Coro::Timer;
16	use Coro::Signal;	45	use Coro::Signal;
17	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
18	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
		51	use Coro::Storable;
		52	use Coro::Util ();
19		53
		54	use JSON::XS 2.01 ();
		55	use BDB ();
20	use Data::Dumper;	56	use Data::Dumper;
21	use Digest::MD5;	57	use Digest::MD5;
22	use Fcntl;	58	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
25	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
26		64
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
		66
		67	# configure various modules to our taste
		68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		80
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	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		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	99	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	115	our $NEXT_TICK;
52	our $NOW;	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
		120	our $BDB_TRICKLE_WATCHER;
		121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
53		124
54	our %CFG;	125	our %CFG;
55		126
56	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
58		130
59	our %PLAYER; # all users	131	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	132	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	133	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		134
67	# used to convert map paths into valid unix filenames by replacing / by ∕	135	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
70	binmode STDOUT;	148	binmode STDOUT;
71	binmode STDERR;	149	binmode STDERR;
72		150
73	# read virtual server time, if available	151	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
78	}	156	}
79		157
80	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	159
82	mkdir cf::localdir . "/" . cf::tmpdir;	160	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		162
86	our $EMERGENCY_POSITION;	163	our $EMERGENCY_POSITION;
87		164
88	sub cf::map::normalise;	165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
89		177
90	#############################################################################	178	#############################################################################
91		179
92	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
93		181
…		…
100	=item $cf::RUNTIME	188	=item $cf::RUNTIME
101		189
102	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
103	every server tick.	191	every server tick.
104		192
105	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
106		196
107	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
108	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
109		201
110	=item $cf::NOW	202	=item $cf::NOW
111		203
112	The time of the last (current) server tick.	204	The time of the last (current) server tick.
113		205
114	=item $cf::TICK	206	=item $cf::TICK
115		207
116	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
117		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
118	=item %cf::CFG	220	=item %cf::CFG
119		221
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
121	from wherever your confdir points to.	223	from wherever your confdir points to.
122		224
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	225	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		226
125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	228	returns directly I<after> the tick processing (and consequently, can only wake one process
127	processing has been done. Call C<< ->wait >> on them to maximise the	229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
128	window of cpu time available, or simply to synchronise to the server tick.	230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
129		242
130	=back	243	=back
131		244
132	=cut	245	=cut
133		246
134	BEGIN {	247	$Coro::State::WARNHOOK = sub {
135	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	248	my $msg = join "", @_;
137	utf8::encode $msg;
138		249
139	$msg .= "\n"	250	$msg .= "\n"
140	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
141		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
142	LOG llevError, $msg;	255	LOG llevError, $msg;
143	};	256	};
144	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
145		271
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
151	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
152		279
153	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
154	# within the Safe compartment.	281	# within the Safe compartment.
155	for my $pkg (qw(	282	for my $pkg (qw(
156	cf::global cf::attachable	283	cf::global cf::attachable
157	cf::object cf::object::player	284	cf::object cf::object::player
158	cf::client cf::player	285	cf::client cf::player
159	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
160	cf::map cf::party cf::region	288	cf::party cf::region
161	)) {	289	)) {
162	no strict 'refs';
163	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
164	}	291	}
165		292
166	$Event::DIED = sub {	293	$EV::DIED = sub {
167	warn "error in event callback: @_";	294	warn "error in event callback: @_";
168	};	295	};
		296
		297	#############################################################################
169		298
170	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
171		300
172	=over 4	301	=over 4
173		302
…		…
192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193	$d	322	$d
194	} || "[unable to dump $_[0]: '$@']";	323	} || "[unable to dump $_[0]: '$@']";
195	}	324	}
196		325
197	use JSON::Syck (); # TODO# replace by JSON::PC once working
198
199	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
200		327
201	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
202		329
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
211		331
212	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
213		333
214	=cut	334	=cut
215		335
216	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
218	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
219	}	353	}
220		354
221	=item cf::lock_wait $string	355	=item cf::lock_wait $string
222		356
223	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
224		358
225	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
226		360
227	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
229	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
230	returned.	364	returned.
231		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
232	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
234		371
235	=cut	372	=item $locked = cf::lock_active $string
236		373
237	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
238		379
239	sub lock_wait($) {	380	sub lock_wait($) {
240	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
241
242	# wait for lock, if any
243	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;
246	}
247	}	382	}
248		383
249	sub lock_acquire($) {	384	sub lock_acquire($) {
250	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
251		387
252	# wait, to be sure we are not locked	388	sub lock_active($) {
253	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
254
255	$LOCK{$key} = [];
256
257	Coro::guard {
258	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };
260	}
261	}	390	}
262		391
263	sub freeze_mainloop {	392	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
265		394
266	my $guard = Coro::guard {	395	&Guard::guard (\&tick_inhibit_dec);
267	$TICK_WATCHER->start;	396	}
268	$WRITE_RUNTIME_WATCHER->start;	397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
269	};	456	}
270	$WRITE_RUNTIME_WATCHER->stop;	457	};
271	$TICK_WATCHER->stop;	458
272	$guard	459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
273	}	471	}
274		472
275	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
276		474
277	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		480
283	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
284		482
285	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
286		484
287	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
290		489
291	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
294	fast or be very important.	493	fast or be very important.
…		…
297		496
298	sub sync_job(&) {	497	sub sync_job(&) {
299	my ($job) = @_;	498	my ($job) = @_;
300		499
301	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
302	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
304		505
305	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	507
307	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
308		509
309	my $busy = 1;	510	my $busy = 1;
310	my @res;	511	my @res;
311		512
312	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	515	@res = eval { $job->() };
314	warn $@ if $@;	516	warn $@ if $@;
315	undef $busy;	517	undef $busy;
316	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
317		519
318	while ($busy) {	520	while ($busy) {
319	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
320	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
321		531
322	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
323	} else {	533	} else {
324	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
325		535
…		…
345	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
346		556
347	$coro	557	$coro
348	}	558	}
349		559
350	sub write_runtime {	560	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		561
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	562	Executes the given code block with the given arguments in a seperate
354	or return;	563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
355		566
356	my $value = $cf::RUNTIME + 90 + 10;	567	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		568
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	569	sub fork_call(&@) {
361	and return;	570	my ($cb, @args) = @_;
362		571
363	aio_fsync $fh	572	# we seemingly have to make a local copy of the whole thing,
364	and return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
365		575
366	close $fh	576	my @res = Coro::Util::fork_eval {
367	or return;	577	reset_signals;
		578	&$cb
		579	}, @args;
368		580
369	aio_rename "$runtime~", $runtime	581	wantarray ? @res : $res[-1]
370	and return;	582	}
371		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
372	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	747	}
374		748
375	=back	749	=back
376		750
377	=cut	751	=cut
378		752
379	#############################################################################	753	#############################################################################
380		754
381	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
382		756
383	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
384	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
386		760
387	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	763	Deliantra).
390		764
391	=over 4	765	=over 4
392		766
393	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
394		768
…		…
438	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
439		813
440	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
441	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
442		816
443	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
444	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
445		819
446	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
447		821
448	=over 4	822	=over 4
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
558		932
559	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		937
564	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	939	my $pkg = shift @arg;
566		940
567	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
597	}	971	}
598		972
599	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
600	} else {	974	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	976	}
603		977
604	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
605	}	979	}
606		980
…		…
608	if (ref $_[0]) {	982	if (ref $_[0]) {
609	_object_attach @_;	983	_object_attach @_;
610	} else {	984	} else {
611	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
612	}	986	}
		987	_recalc_want;
613	};	988	};
614		989
615	# all those should be optimised	990	# all those should be optimised
616	sub cf::attachable::detach {	991	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
621	reattach ($obj);	996	reattach ($obj);
622	} else {	997	} else {
623	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
624	}	999	}
		1000	_recalc_want;
625	};	1001	};
626		1002
627	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
629		1005
…		…
644	";	1020	";
645	die if $@;	1021	die if $@;
646	}	1022	}
647		1023
648	our $override;	1024	our $override;
649	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
650		1026
651	sub override {	1027	sub override {
652	$override = 1;	1028	$override = 1;
653	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
654	}	1030	}
655		1031
656	sub do_invoke {	1032	sub do_invoke {
657	my $event = shift;	1033	my $event = shift;
658	my $callbacks = shift;	1034	my $callbacks = shift;
659		1035
660	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
661		1037
662	local $override;	1038	local $override;
663		1039
664	for (@$callbacks) {	1040	for (@$callbacks) {
665	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
674	}	1050	}
675		1051
676	0	1052	0
677	}	1053	}
678		1054
679	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
680		1056
681	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
682		1058
683	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
684		1060
685	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
686	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
687	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
688		1064
689	=back	1065	=back
690		1066
691	=cut	1067	=cut
692		1068
693	#############################################################################	1069	#############################################################################
694	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
695		1113
696	sub reattach {	1114	sub reattach {
697	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
698	my ($obj) = @_;	1116	my ($obj) = @_;
699		1117
		1118	# no longer needed after getting rid of delete_package?
700	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		1120
702	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
703		1122
704	@$registry = ();	1123	@$registry = ();
705		1124
…		…
720	cf::attachable->attach (	1139	cf::attachable->attach (
721	prio => -1000000,	1140	prio => -1000000,
722	on_instantiate => sub {	1141	on_instantiate => sub {
723	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
724		1143
725	$data = from_json $data;	1144	$data = decode_json $data;
726		1145
727	for (@$data) {	1146	for (@$data) {
728	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
729		1148
730	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1165	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
748		1167
749	sync_job {	1168	sync_job {
750	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
753		1173
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1177	if ($cf::USE_FSYNC) {
		1178	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;
757	aio_fsync $fh;	1179	aio_fsync $fh;
		1180	}
758	close $fh;	1181	aio_close $fh;
759		1182
760	if (@$objs) {	1183	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
		1188	if ($cf::USE_FSYNC) {
		1189	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;
765	aio_fsync $fh;	1190	aio_fsync $fh;
		1191	}
766	close $fh;	1192	aio_close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
768	}	1194	}
769	} else {	1195	} else {
770	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
771	}	1197	}
772		1198
773	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
774	} else {	1203	} else {
775	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
776	}	1205	}
777	} else {	1206	} else {
778	aio_unlink $filename;	1207	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
780	}	1209	}
781	}	1210	};
782	}	1211	}
783		1212
784	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
786		1215
…		…
798	or return;	1227	or return;
799		1228
800	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
802	or return;	1231	or return;
		1232
803	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
804	}	1235	}
805		1236
		1237	utf8::decode (my $decname = $filename);
806	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
807	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
808	return ($data, $av);	1241	($data, $av)
809	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
810		1249
811	#############################################################################	1250	#############################################################################
812	# command handling &c	1251	# command handling &c
813		1252
814	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
827	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
828	}	1267	}
829		1268
830	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
831		1270
832	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
833		1276
834	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
835	called.	1278	called.
836		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
837	=cut	1291	=cut
838		1292
839	sub register_extcmd {	1293	sub register_extcmd {
840	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
841		1295
842	$EXTCMD{$name} = $cb;	1296	$EXTCMD{$name} = $cb;
843	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
844		1306
845	cf::player->attach (	1307	cf::player->attach (
846	on_command => sub {	1308	on_command => sub {
847	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
848		1310
…		…
856	cf::override;	1318	cf::override;
857	},	1319	},
858	on_extcmd => sub {	1320	on_extcmd => sub {
859	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
860		1322
861	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
862		1324
863	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
864	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
865	if (my %reply = $cb->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
866	$pl->ext_reply ($msg->{msgid}, %reply);
867	}
868	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
869	} else {	1340	} else {
870	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
871	}	1342	}
872		1343
873	cf::override;	1344	cf::override;
874	},	1345	},
875	);	1346	);
876		1347
		1348	# "readahead" all extensions
877	sub load_extension {	1349	sub cache_extensions {
878	my ($path) = @_;	1350	my $grp = IO::AIO::aio_group;
879		1351
880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
881	my $base = $1;	1353	for (grep /\.ext$/, @{$_[0]}) {
882	my $pkg = $1;	1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
883	$pkg =~ s/[^[:word:]]/_/g;
884	$pkg = "ext::$pkg";
885
886	warn "... loading '$path' into '$pkg'\n";
887
888	open my $fh, "<:utf8", $path
889	or die "$path: $!";
890
891	my $source =
892	"package $pkg; use strict; use utf8;\n"
893	. "#line 1 \"$path\"\n{\n"
894	. (do { local $/; <$fh> })
895	. "\n};\n1";
896
897	unless (eval $source) {
898	my $msg = $@ ? "$path: $@\n"
899	: "extension disabled.\n";
900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
901	warn $@;
902	warn "mandatory extension failed to load, exiting.\n";
903	exit 1;
904	}	1355	}
905	die $@;
906	}	1356	};
907		1357
908	push @EXTS, $pkg;	1358	$grp
909	}	1359	}
910		1360
911	sub load_extensions {	1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
912	for my $ext (<$LIBDIR/*.ext>) {	1365	for my $path (<$LIBDIR/*.ext>) {
913	next unless -r $ext;	1366	next unless -r $path;
914	eval {	1367
915	load_extension $ext;	1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
916	1	1424	}
917	} or warn "$ext not loaded: $@";	1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
918	}	1430	};
919	}	1431	}
920		1432
921	#############################################################################	1433	#############################################################################
922		1434
		1435	=back
		1436
923	=head2 CORE EXTENSIONS	1437	=head2 CORE EXTENSIONS
924		1438
925	Functions and methods that extend core crossfire objects.	1439	Functions and methods that extend core deliantra objects.
926		1440
927	=cut	1441	=cut
928		1442
929	package cf::player;	1443	package cf::player;
930		1444
…		…
932		1446
933	=head3 cf::player	1447	=head3 cf::player
934		1448
935	=over 4	1449	=over 4
936		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
		1464
937	=item cf::player::find $login	1465	=item cf::player::find $login
938		1466
939	Returns the given player object, loading it if necessary (might block).	1467	Returns the given player object, loading it if necessary (might block).
940		1468
941	=cut	1469	=cut
942		1470
943	sub playerdir($) {	1471	sub playerdir($) {
944	cf::localdir	1472	"$PLAYERDIR/"
945	. "/"
946	. cf::playerdir
947	. "/"
948	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
949	}	1474	}
950		1475
951	sub path($) {	1476	sub path($) {
952	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
953		1478
954	(playerdir $login) . "/$login.pl"	1479	(playerdir $login) . "/playerdata"
955	}	1480	}
956		1481
957	sub find_active($) {	1482	sub find_active($) {
958	$cf::PLAYER{$_[0]}	1483	$cf::PLAYER{$_[0]}
959	and $cf::PLAYER{$_[0]}->active	1484	and $cf::PLAYER{$_[0]}->active
…		…
962		1487
963	sub exists($) {	1488	sub exists($) {
964	my ($login) = @_;	1489	my ($login) = @_;
965		1490
966	$cf::PLAYER{$login}	1491	$cf::PLAYER{$login}
967	or cf::sync_job { !aio_stat path $login }	1492	or !aio_stat path $login
968	}	1493	}
969		1494
970	sub find($) {	1495	sub find($) {
971	return $cf::PLAYER{$_[0]} || do {	1496	return $cf::PLAYER{$_[0]} || do {
972	my $login = $_[0];	1497	my $login = $_[0];
973		1498
974	my $guard = cf::lock_acquire "user_find:$login";	1499	my $guard = cf::lock_acquire "user_find:$login";
975		1500
976	$cf::PLAYER{$_[0]} || do {	1501	$cf::PLAYER{$_[0]} || do {
977	my $pl = load_pl path $login	1502	# rename old playerfiles to new ones
		1503	#TODO: remove when no longer required
		1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1507	aio_unlink +(playerdir $login) . "/$login.pl";
		1508
		1509	my $f = new_from_file cf::object::thawer path $login
978	or return;	1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
979	$cf::PLAYER{$login} = $pl	1517	$cf::PLAYER{$login} = $pl
980	}	1518	}
981	}	1519	}
982	}	1520	}
983		1521
…		…
992	return if $pl->{deny_save};	1530	return if $pl->{deny_save};
993		1531
994	aio_mkdir playerdir $pl, 0770;	1532	aio_mkdir playerdir $pl, 0770;
995	$pl->{last_save} = $cf::RUNTIME;	1533	$pl->{last_save} = $cf::RUNTIME;
996		1534
		1535	cf::get_slot 0.01;
		1536
997	$pl->save_pl ($path);	1537	$pl->save_pl ($path);
998	Coro::cede;	1538	cf::cede_to_tick;
999	}	1539	}
1000		1540
1001	sub new($) {	1541	sub new($) {
1002	my ($login) = @_;	1542	my ($login) = @_;
1003		1543
…		…
1009	$cf::PLAYER{$login} = $self;	1549	$cf::PLAYER{$login} = $self;
1010		1550
1011	$self	1551	$self
1012	}	1552	}
1013		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
1014	=item $pl->quit_character	1564	=item $pl->quit_character
1015		1565
1016	Nukes the player without looking back. If logged in, the connection will	1566	Nukes the player without looking back. If logged in, the connection will
1017	be destroyed. May block for a long time.	1567	be destroyed. May block for a long time.
1018		1568
1019	=cut	1569	=cut
1020		1570
1021	sub quit_character {	1571	sub quit_character {
1022	my ($pl) = @_;	1572	my ($pl) = @_;
1023		1573
		1574	my $name = $pl->ob->name;
		1575
1024	$pl->{deny_save} = 1;	1576	$pl->{deny_save} = 1;
1025	$pl->password ("*"); # this should lock out the player until we nuked the dir	1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1026		1578
1027	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1028	$pl->deactivate;	1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
1029	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1030	$pl->ns->destroy if $pl->ns;	1584	$pl->ns->destroy if $pl->ns;
1031		1585
1032	my $path = playerdir $pl;	1586	my $path = playerdir $pl;
1033	my $temp = "$path~$cf::RUNTIME~deleting~";	1587	my $temp = "$path~$cf::RUNTIME~deleting~";
1034	aio_rename $path, $temp;	1588	aio_rename $path, $temp;
1035	delete $cf::PLAYER{$pl->ob->name};	1589	delete $cf::PLAYER{$pl->ob->name};
1036	$pl->destroy;	1590	$pl->destroy;
		1591
		1592	my $prefix = qr<^~\Q$name\E/>;
		1593
		1594	# nuke player maps
		1595	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1596
1037	IO::AIO::aio_rmtree $temp;	1597	IO::AIO::aio_rmtree $temp;
		1598	}
		1599
		1600	=item $pl->kick
		1601
		1602	Kicks a player out of the game. This destroys the connection.
		1603
		1604	=cut
		1605
		1606	sub kick {
		1607	my ($pl, $kicker) = @_;
		1608
		1609	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1610	$pl->killer ("kicked");
		1611	$pl->ns->destroy;
1038	}	1612	}
1039		1613
1040	=item cf::player::list_logins	1614	=item cf::player::list_logins
1041		1615
1042	Returns am arrayref of all valid playernames in the system, can take a	1616	Returns am arrayref of all valid playernames in the system, can take a
1043	while and may block, so not sync_job-capable, ever.	1617	while and may block, so not sync_job-capable, ever.
1044		1618
1045	=cut	1619	=cut
1046		1620
1047	sub list_logins {	1621	sub list_logins {
1048	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1622	my $dirs = aio_readdir $PLAYERDIR
1049	or return [];	1623	or return [];
1050		1624
1051	my @logins;	1625	my @logins;
1052		1626
1053	for my $login (@$dirs) {	1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
1054	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1055	aio_read $fh, 0, 512, my $buf, 0 or next;	1634	aio_read $fh, 0, 512, my $buf, 0 or next;
1056	$buf !~ /^password -------------$/m or next; # official not-valid tag	1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
1057		1637
1058	utf8::decode $login;	1638	utf8::decode $login;
1059	push @logins, $login;	1639	push @logins, $login;
1060	}	1640	}
1061		1641
…		…
1069		1649
1070	=cut	1650	=cut
1071		1651
1072	sub maps($) {	1652	sub maps($) {
1073	my ($pl) = @_;	1653	my ($pl) = @_;
		1654
		1655	$pl = ref $pl ? $pl->ob->name : $pl;
1074		1656
1075	my $files = aio_readdir playerdir $pl	1657	my $files = aio_readdir playerdir $pl
1076	or return;	1658	or return;
1077		1659
1078	my @paths;	1660	my @paths;
…		…
1080	for (@$files) {	1662	for (@$files) {
1081	utf8::decode $_;	1663	utf8::decode $_;
1082	next if /\.(?:pl|pst)$/;	1664	next if /\.(?:pl|pst)$/;
1083	next unless /^$PATH_SEP/o;	1665	next unless /^$PATH_SEP/o;
1084		1666
1085	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1667	push @paths, cf::map::normalise "~$pl/$_";
1086	}	1668	}
1087		1669
1088	\@paths	1670	\@paths
1089	}	1671	}
1090		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1677	=item $player->ext_reply ($msgid, @msg)
1092		1678
1093	Sends an ext reply to the player.	1679	Sends an ext reply to the player.
1094		1680
1095	=cut	1681	=cut
1096		1682
1097	sub ext_reply($$$%) {	1683	sub ext_reply($$@) {
1098	my ($self, $id, %msg) = @_;	1684	my ($self, $id, @msg) = @_;
1099		1685
1100	$msg{msgid} = $id;	1686	$self->ns->ext_reply ($id, @msg)
1101
1102	$self->send ("ext " . cf::to_json \%msg);
1103	}	1687	}
1104		1688
1105	package cf;	1689	=item $player->ext_msg ($type, @msg)
		1690
		1691	Sends an ext event to the client.
		1692
		1693	=cut
		1694
		1695	sub ext_msg($$@) {
		1696	my ($self, $type, @msg) = @_;
		1697
		1698	$self->ns->ext_msg ($type, @msg);
		1699	}
		1700
		1701	=head3 cf::region
		1702
		1703	=over 4
		1704
		1705	=cut
		1706
		1707	package cf::region;
		1708
		1709	=item cf::region::find_by_path $path
		1710
		1711	Tries to decuce the likely region for a map knowing only its path.
		1712
		1713	=cut
		1714
		1715	sub find_by_path($) {
		1716	my ($path) = @_;
		1717
		1718	my ($match, $specificity);
		1719
		1720	for my $region (list) {
		1721	if ($region->{match} && $path =~ $region->{match}) {
		1722	($match, $specificity) = ($region, $region->specificity)
		1723	if $region->specificity > $specificity;
		1724	}
		1725	}
		1726
		1727	$match
		1728	}
1106		1729
1107	=back	1730	=back
1108
1109		1731
1110	=head3 cf::map	1732	=head3 cf::map
1111		1733
1112	=over 4	1734	=over 4
1113		1735
…		…
1125	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1126	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1127		1749
1128	sub generate_random_map {	1750	sub generate_random_map {
1129	my ($self, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
1130	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1131	$self->_create_random_map (	1756	$self->_create_random_map (
1132	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1133	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1134	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1168	my ($self, $merge) = @_;	1793	my ($self, $merge) = @_;
1169		1794
1170	# we have to keep some variables in memory intact	1795	# we have to keep some variables in memory intact
1171	local $self->{path};	1796	local $self->{path};
1172	local $self->{load_path};	1797	local $self->{load_path};
1173	local $self->{deny_save};
1174	local $self->{deny_reset};
1175		1798
1176	$self->SUPER::thawer_merge ($merge);	1799	$self->SUPER::thawer_merge ($merge);
1177	}	1800	}
1178		1801
1179	sub normalise {	1802	sub normalise {
…		…
1226	$self->init; # pass $1 etc.	1849	$self->init; # pass $1 etc.
1227	return $self;	1850	return $self;
1228	}	1851	}
1229	}	1852	}
1230		1853
1231	Carp::carp "unable to resolve path '$path' (base '$base').";	1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
1232	()	1855	()
1233	}	1856	}
1234		1857
1235	sub init {	1858	sub init {
1236	my ($self) = @_;	1859	my ($self) = @_;
…		…
1251		1874
1252	# the original (read-only) location	1875	# the original (read-only) location
1253	sub load_path {	1876	sub load_path {
1254	my ($self) = @_;	1877	my ($self) = @_;
1255		1878
1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1879	"$MAPDIR/$self->{path}.map"
1257	}	1880	}
1258		1881
1259	# the temporary/swap location	1882	# the temporary/swap location
1260	sub save_path {	1883	sub save_path {
1261	my ($self) = @_;	1884	my ($self) = @_;
1262		1885
1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1887	"$TMPDIR/$path.map"
1265	}	1888	}
1266		1889
1267	# the unique path, undef == no special unique path	1890	# the unique path, undef == no special unique path
1268	sub uniq_path {	1891	sub uniq_path {
1269	my ($self) = @_;	1892	my ($self) = @_;
1270		1893
1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1895	"$UNIQUEDIR/$path"
1273	}	1896	}
1274		1897
1275	# and all this just because we cannot iterate over	1898	sub decay_objects {
1276	# all maps in C++...
1277	sub change_all_map_light {
1278	my ($change) = @_;	1899	my ($self) = @_;
1279		1900
1280	$_->change_map_light ($change)	1901	return if $self->{deny_reset};
1281	for grep $_->outdoor, values %cf::MAP;	1902
		1903	$self->do_decay_objects;
1282	}	1904	}
1283		1905
1284	sub unlink_save {	1906	sub unlink_save {
1285	my ($self) = @_;	1907	my ($self) = @_;
1286		1908
…		…
1291		1913
1292	sub load_header_from($) {	1914	sub load_header_from($) {
1293	my ($self, $path) = @_;	1915	my ($self, $path) = @_;
1294		1916
1295	utf8::encode $path;	1917	utf8::encode $path;
1296	aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1297	or return;	1919	or return;
1298		1920
1299	$self->_load_header ($path)	1921	$self->_load_header ($f)
1300	or return;	1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
1301		1926
1302	$self->{load_path} = $path;	1927	$self->{load_path} = $path;
1303		1928
1304	1	1929	1
1305	}	1930	}
…		…
1344	$self->load_header_orig	1969	$self->load_header_orig
1345	or return;	1970	or return;
1346	$self->prepare_orig;	1971	$self->prepare_orig;
1347	}	1972	}
1348		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
		1977	$self->default_region (cf::region::find_by_path $self->{path})
		1978	unless $self->default_region;
		1979
1349	1	1980	1
1350	}	1981	}
1351		1982
1352	sub find;	1983	sub find;
1353	sub find {	1984	sub find {
1354	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1355		1986
1356	$path = normalise $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1357		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1358	cf::lock_wait "map_find:$path";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1359		1991
1360	$cf::MAP{$path} || do {	1992	$cf::MAP{$path} || do {
1361	my $guard = cf::lock_acquire "map_find:$path";
1362	my $map = new_from_path cf::map $path	1993	my $map = new_from_path cf::map $path
1363	or return;	1994	or return;
1364		1995
1365	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1366		1997
1367	$map->load_header	1998	$map->load_header
1368	or return;	1999	or return;
1369		2000
1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1371	# doing this can freeze the server in a sync job, obviously	2002	# doing this can freeze the server in a sync job, obviously
1372	#$cf::WAIT_FOR_TICK->wait;	2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
1373	$map->reset;	2006	$map->reset;
1374	undef $guard;
1375	return find $path;	2007	return find $path;
1376	}	2008	}
1377		2009
1378	$cf::MAP{$path} = $map	2010	$cf::MAP{$path} = $map
1379	}	2011	}
…		…
1386	my ($self) = @_;	2018	my ($self) = @_;
1387		2019
1388	local $self->{deny_reset} = 1; # loading can take a long time	2020	local $self->{deny_reset} = 1; # loading can take a long time
1389		2021
1390	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1391	my $guard = cf::lock_acquire "map_load:$path";	2025	my $guard = cf::lock_acquire "map_data:$path";
1392		2026
		2027	return unless $self->valid;
1393	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1394		2029
1395	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1396		2031
1397	$self->alloc;	2032	$self->alloc;
1398		2033
1399	$self->pre_load;	2034	$self->pre_load;
		2035	cf::cede_to_tick;
1400		2036
1401	$self->_load_objects ($self->{load_path}, 1)	2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
1402	or return;	2040	or return;
1403		2041
1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1405	if delete $self->{load_original};	2043	if delete $self->{load_original};
1406		2044
1407	if (my $uniq = $self->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1408	utf8::encode $uniq;	2046	utf8::encode $uniq;
1409	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1410	$self->clear_unique_items;	2049	$self->clear_unique_items;
1411	$self->_load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1412	}	2053	}
1413	}	2054	}
1414		2055
1415	Coro::cede;	2056	$f->resolve_delayed_derefs;
1416		2057
		2058	cf::cede_to_tick;
1417	# now do the right thing for maps	2059	# now do the right thing for maps
1418	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1419
1420	unless ($self->{deny_activate}) {
1421	$self->decay_objects;
1422	$self->fix_auto_apply;
1423	$self->update_buttons;
1424	Coro::cede;
1425	$self->set_darkness_map;
1426	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1427	unless $self->difficulty;	2062	unless $self->difficulty;
1428	Coro::cede;	2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1429	$self->activate;	2070	$self->activate;
		2071	}
		2072
		2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
1430	}	2077	}
1431		2078
1432	$self->post_load;	2079	$self->post_load;
1433
1434	$self->in_memory (cf::MAP_IN_MEMORY);
1435	}	2080	}
1436		2081
1437	sub customise_for {	2082	sub customise_for {
1438	my ($self, $ob) = @_;	2083	my ($self, $ob) = @_;
1439		2084
1440	return find "~" . $ob->name . "/" . $self->{path}	2085	return find "~" . $ob->name . "/" . $self->{path}
1441	if $self->per_player;	2086	if $self->per_player;
1442		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
1443	$self	2091	$self
1444	}	2092	}
1445		2093
1446	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1447	sub load_diag {	2095	sub load_neighbours {
1448	my ($map) = @_;	2096	my ($map) = @_;
1449		2097
1450	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1451		2099
1452	for (0 .. 3) {	2100	for (0 .. 3) {
1453	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1454	or next;	2102	or next;
1455	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1456	or next;	2104	or next;
1457	$neigh->load;	2105	$neigh->load;
1458		2106
		2107	push @neigh,
1459	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1460	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1461	}	2110	}
1462		2111
1463	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1464	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1465	or next;	2115	or next;
1466	$neigh->load;	2116	$neigh->load;
1467	}	2117	}
1468	}	2118	}
1469		2119
…		…
1474	}	2124	}
1475		2125
1476	sub do_load_sync {	2126	sub do_load_sync {
1477	my ($map) = @_;	2127	my ($map) = @_;
1478		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1479	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1480	}	2133	}
1481		2134
1482	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
1483	our $MAP_PREFETCHER = undef;	2136	our $MAP_PREFETCHER = undef;
1484		2137
1485	sub find_async {	2138	sub find_async {
1486	my ($path, $origin) = @_;	2139	my ($path, $origin, $load) = @_;
1487		2140
1488	$path = normalise $path, $origin && $origin->{path};	2141	$path = normalise $path, $origin && $origin->{path};
1489		2142
1490	if (my $map = $cf::MAP{$path}) {	2143	if (my $map = $cf::MAP{$path}) {
1491	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1492	}	2145	}
1493		2146
1494	undef $MAP_PREFETCH{$path};	2147	$MAP_PREFETCH{$path} |= $load;
		2148
1495	$MAP_PREFETCHER ||= cf::async {	2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
1496	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1497	for my $path (keys %MAP_PREFETCH) {	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1498	my $map = find $path	2154	if (my $map = find $k) {
1499	or next;
1500	$map->load;	2155	$map->load if $v;
		2156	}
1501		2157
1502	delete $MAP_PREFETCH{$path};	2158	delete $MAP_PREFETCH{$k};
1503	}	2159	}
1504	}	2160	}
1505	undef $MAP_PREFETCHER;	2161	undef $MAP_PREFETCHER;
1506	};	2162	};
1507	$MAP_PREFETCHER->prio (6);	2163	$MAP_PREFETCHER->prio (6);
…		…
1510	}	2166	}
1511		2167
1512	sub save {	2168	sub save {
1513	my ($self) = @_;	2169	my ($self) = @_;
1514		2170
1515	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1516		2172
1517	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1518		2174
1519	return unless $self->dirty;	2175	return unless $self->dirty;
1520		2176
…		…
1526	return if $self->{deny_save};	2182	return if $self->{deny_save};
1527		2183
1528	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1529		2185
1530	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1531	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1532	};	2189	};
		2190
		2191	cf::get_slot 0.02;
1533		2192
1534	if ($uniq) {	2193	if ($uniq) {
1535	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1536	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1537	} else {	2196	} else {
…		…
1543	my ($self) = @_;	2202	my ($self) = @_;
1544		2203
1545	# save first because save cedes	2204	# save first because save cedes
1546	$self->save;	2205	$self->save;
1547		2206
1548	my $lock = cf::lock_acquire "map_data:" . $self->path;	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
1549		2208
1550	return if $self->players;	2209	return if $self->players;
1551	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1552	return if $self->{deny_save};	2211	return if $self->{deny_save};
1553		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1554	$self->clear;	2217	$self->clear;
1555	$self->in_memory (cf::MAP_SWAPPED);
1556	}	2218	}
1557		2219
1558	sub reset_at {	2220	sub reset_at {
1559	my ($self) = @_;	2221	my ($self) = @_;
1560		2222
1561	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
1563	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1564		2225
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2228
…		…
1578	my ($self) = @_;	2239	my ($self) = @_;
1579		2240
1580	my $lock = cf::lock_acquire "map_data:$self->{path}";	2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
1581		2242
1582	return if $self->players;	2243	return if $self->players;
1583	return if $self->isa ("ext::map_per_player");#d#
1584		2244
1585	warn "resetting map ", $self->path;#d#	2245	warn "resetting map ", $self->path, "\n";
		2246
		2247	$self->in_memory (cf::MAP_SWAPPED);
		2248
		2249	# need to save uniques path
		2250	unless ($self->{deny_save}) {
		2251	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2252
		2253	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2254	if $uniq;
		2255	}
1586		2256
1587	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1588		2258
1589	$self->in_memory (cf::MAP_SWAPPED);	2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
1590	$self->clear;	2261	$self->clear;
1591
1592	$_->clear_links_to ($self) for values %cf::MAP;
1593		2262
1594	$self->unlink_save;	2263	$self->unlink_save;
1595	$self->destroy;	2264	$self->destroy;
1596	}	2265	}
1597		2266
1598	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1599		2268
1600	sub nuke {	2269	sub nuke {
1601	my ($self) = @_;	2270	my ($self) = @_;
1602		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
1603	delete $cf::MAP{$self->path};	2275	delete $cf::MAP{$self->path};
1604		2276
1605	$self->unlink_save;	2277	$self->unlink_save;
1606		2278
1607	bless $self, "cf::map";	2279	bless $self, "cf::map";
1608	delete $self->{deny_reset};	2280	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1611	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1612		2284
1613	$cf::MAP{$self->path} = $self;	2285	$cf::MAP{$self->path} = $self;
		2286	}
1614		2287
1615	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
1616	}	2325	}
1617		2326
1618	=item cf::map::unique_maps	2327	=item cf::map::unique_maps
1619		2328
1620	Returns an arrayref of paths of all shared maps that have	2329	Returns an arrayref of paths of all shared maps that have
1621	instantiated unique items. May block.	2330	instantiated unique items. May block.
1622		2331
1623	=cut	2332	=cut
1624		2333
1625	sub unique_maps() {	2334	sub unique_maps() {
1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2335	[
1627	or return;	2336	map {
1628
1629	my @paths;
1630
1631	for (@$files) {
1632	utf8::decode $_;	2337	utf8::decode $_;
1633	next if /\.pst$/;	2338	s/\.map$//; # TODO future compatibility hack
1634	next unless /^$PATH_SEP/o;	2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1635		2340	? ()
1636	push @paths, cf::map::normalise $_;	2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
1637	}	2343	]
1638
1639	\@paths
1640	}	2344	}
1641
1642	package cf;
1643		2345
1644	=back	2346	=back
1645		2347
1646	=head3 cf::object	2348	=head3 cf::object
1647		2349
…		…
1651		2353
1652	=over 4	2354	=over 4
1653		2355
1654	=item $ob->inv_recursive	2356	=item $ob->inv_recursive
1655		2357
1656	Returns the inventory of the object _and_ their inventories, recursively.	2358	Returns the inventory of the object I<and> their inventories, recursively,
		2359	but I<not> the object itself.
1657		2360
1658	=cut	2361	=cut
1659		2362
1660	sub inv_recursive_;	2363	sub inv_recursive_;
1661	sub inv_recursive_ {	2364	sub inv_recursive_ {
…		…
1664		2367
1665	sub inv_recursive {	2368	sub inv_recursive {
1666	inv_recursive_ inv $_[0]	2369	inv_recursive_ inv $_[0]
1667	}	2370	}
1668		2371
		2372	=item $ref = $ob->ref
		2373
		2374	Creates and returns a persistent reference to an object that can be stored as a string.
		2375
		2376	=item $ob = cf::object::deref ($refstring)
		2377
		2378	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2379	even if the object actually exists. May block.
		2380
		2381	=cut
		2382
		2383	sub deref {
		2384	my ($ref) = @_;
		2385
		2386	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2387	my ($uuid, $name) = ($1, $2);
		2388	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2389	or return;
		2390	$pl->ob->uuid eq $uuid
		2391	or return;
		2392
		2393	$pl->ob
		2394	} else {
		2395	warn "$ref: cannot resolve object reference\n";
		2396	undef
		2397	}
		2398	}
		2399
1669	package cf;	2400	package cf;
1670		2401
1671	=back	2402	=back
1672		2403
1673	=head3 cf::object::player	2404	=head3 cf::object::player
…		…
1679	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2410	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1680	can be C<undef>. Does the right thing when the player is currently in a	2411	can be C<undef>. Does the right thing when the player is currently in a
1681	dialogue with the given NPC character.	2412	dialogue with the given NPC character.
1682		2413
1683	=cut	2414	=cut
		2415
		2416	our $SAY_CHANNEL = {
		2417	id => "say",
		2418	title => "Map",
		2419	reply => "say ",
		2420	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2421	};
		2422
		2423	our $CHAT_CHANNEL = {
		2424	id => "chat",
		2425	title => "Chat",
		2426	reply => "chat ",
		2427	tooltip => "Player chat and shouts, global to the server.",
		2428	};
1684		2429
1685	# rough implementation of a future "reply" method that works	2430	# rough implementation of a future "reply" method that works
1686	# with dialog boxes.	2431	# with dialog boxes.
1687	#TODO: the first argument must go, split into a $npc->reply_to ( method	2432	#TODO: the first argument must go, split into a $npc->reply_to ( method
1688	sub cf::object::player::reply($$$;$) {	2433	sub cf::object::player::reply($$$;$) {
…		…
1690		2435
1691	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1692		2437
1693	if ($self->{record_replies}) {	2438	if ($self->{record_replies}) {
1694	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2440
1695	} else {	2441	} else {
		2442	my $pl = $self->contr;
		2443
		2444	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2445	my $dialog = $pl->{npc_dialog};
		2446	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2447
		2448	} else {
1696	$msg = $npc->name . " says: $msg" if $npc;	2449	$msg = $npc->name . " says: $msg" if $npc;
1697	$self->message ($msg, $flags);	2450	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2451	}
1698	}	2452	}
		2453	}
		2454
		2455	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2456
		2457	=cut
		2458
		2459	sub cf::object::send_msg {
		2460	my $pl = shift->contr
		2461	or return;
		2462	$pl->send_msg (@_);
1699	}	2463	}
1700		2464
1701	=item $player_object->may ("access")	2465	=item $player_object->may ("access")
1702		2466
1703	Returns wether the given player is authorized to access resource "access"	2467	Returns wether the given player is authorized to access resource "access"
…		…
1716		2480
1717	=item $player_object->enter_link	2481	=item $player_object->enter_link
1718		2482
1719	Freezes the player and moves him/her to a special map (C<{link}>).	2483	Freezes the player and moves him/her to a special map (C<{link}>).
1720		2484
1721	The player should be reasonably safe there for short amounts of time. You	2485	The player should be reasonably safe there for short amounts of time (e.g.
1722	I<MUST> call C<leave_link> as soon as possible, though.	2486	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2487	though, as the palyer cannot control the character while it is on the link
		2488	map.
1723		2489
1724	Will never block.	2490	Will never block.
1725		2491
1726	=item $player_object->leave_link ($map, $x, $y)	2492	=item $player_object->leave_link ($map, $x, $y)
1727		2493
…		…
1750	$self->deactivate_recursive;	2516	$self->deactivate_recursive;
1751		2517
1752	return if UNIVERSAL::isa $self->map, "ext::map_link";	2518	return if UNIVERSAL::isa $self->map, "ext::map_link";
1753		2519
1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2520	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1755	if $self->map;	2521	if $self->map && $self->map->{path} ne "{link}";
1756		2522
1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2523	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1758	}	2524	}
1759		2525
1760	sub cf::object::player::leave_link {	2526	sub cf::object::player::leave_link {
1761	my ($self, $map, $x, $y) = @_;	2527	my ($self, $map, $x, $y) = @_;
		2528
		2529	return unless $self->contr->active;
1762		2530
1763	my $link_pos = delete $self->{_link_pos};	2531	my $link_pos = delete $self->{_link_pos};
1764		2532
1765	unless ($map) {	2533	unless ($map) {
1766	# restore original map position	2534	# restore original map position
…		…
1780	# use -1 or undef as default coordinates, not 0, 0	2548	# use -1 or undef as default coordinates, not 0, 0
1781	($x, $y) = ($map->enter_x, $map->enter_y)	2549	($x, $y) = ($map->enter_x, $map->enter_y)
1782	if $x <=0 && $y <= 0;	2550	if $x <=0 && $y <= 0;
1783		2551
1784	$map->load;	2552	$map->load;
1785	$map->load_diag;	2553	$map->load_neighbours;
1786		2554
1787	return unless $self->contr->active;	2555	return unless $self->contr->active;
		2556
		2557	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2558	$self->enter_map ($map, $x, $y);
		2559
		2560	# only activate afterwards, to support waiting in hooks
1788	$self->activate_recursive;	2561	$self->activate_recursive;
1789	$self->enter_map ($map, $x, $y);
1790	}	2562	}
1791		2563
1792	cf::player->attach (	2564	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1793	on_logout => sub {
1794	my ($pl) = @_;
1795		2565
1796	# abort map switching before logout	2566	Moves the player to the given map-path and coordinates by first freezing
1797	if ($pl->ob->{_link_pos}) {	2567	her, loading and preparing them map, calling the provided $check callback
1798	cf::sync_job {	2568	that has to return the map if sucecssful, and then unfreezes the player on
1799	$pl->ob->leave_link	2569	the new (success) or old (failed) map position. In either case, $done will
1800	};	2570	be called at the end of this process.
1801	}
1802	},
1803	on_login => sub {
1804	my ($pl) = @_;
1805		2571
1806	# try to abort aborted map switching on player login :)	2572	Note that $check will be called with a potentially non-loaded map, so if
1807	# should happen only on crashes	2573	it needs a loaded map it has to call C<< ->load >>.
1808	if ($pl->ob->{_link_pos}) {
1809	$pl->ob->enter_link;
1810	(async {
1811	# we need this sleep as the login has a concurrent enter_exit running
1812	# and this sleep increases chances of the player not ending up in scorn
1813	$pl->ob->reply (undef,
1814	"There was an internal problem at your last logout, "
1815	. "the server will try to bring you to your intended destination in a second.",
1816	cf::NDI_RED);
1817	Coro::Timer::sleep 1;
1818	$pl->ob->leave_link;
1819	})->prio (2);
1820	}
1821	},
1822	);
1823		2574
1824	=item $player_object->goto ($path, $x, $y)
1825
1826	=cut	2575	=cut
		2576
		2577	our $GOTOGEN;
1827		2578
1828	sub cf::object::player::goto {	2579	sub cf::object::player::goto {
1829	my ($self, $path, $x, $y) = @_;	2580	my ($self, $path, $x, $y, $check, $done) = @_;
		2581
		2582	# do generation counting so two concurrent goto's will be executed in-order
		2583	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1830		2584
1831	$self->enter_link;	2585	$self->enter_link;
1832		2586
1833	(async {	2587	(async {
		2588	$Coro::current->{desc} = "player::goto $path $x $y";
		2589
		2590	# *tag paths override both path and x|y
		2591	if ($path =~ /^\*(.*)$/) {
		2592	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2593	my $ob = $obs[rand @obs];
		2594
		2595	# see if we actually can go there
		2596	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2597	$ob = $obs[rand @obs];
		2598	} else {
		2599	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
		2601	# else put us there anyways for now #d#
		2602
		2603	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2604	} else {
		2605	($path, $x, $y) = (undef, undef, undef);
		2606	}
		2607	}
		2608
1834	my $map = eval {	2609	my $map = eval {
1835	my $map = cf::map::find $path;	2610	my $map = defined $path ? cf::map::find $path : undef;
		2611
		2612	if ($map) {
1836	$map = $map->customise_for ($self) if $map;	2613	$map = $map->customise_for ($self);
		2614	$map = $check->($map) if $check && $map;
		2615	} else {
		2616	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
		2618
1837	$map	2619	$map
		2620	};
		2621
		2622	if ($@) {
		2623	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	LOG llevError | logBacktrace, Carp::longmess $@;
1838	} or	2625	}
1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1840		2626
		2627	if ($gen == $self->{_goto_generation}) {
		2628	delete $self->{_goto_generation};
1841	$self->leave_link ($map, $x, $y);	2629	$self->leave_link ($map, $x, $y);
		2630	}
		2631
		2632	$done->() if $done;
1842	})->prio (1);	2633	})->prio (1);
1843	}	2634	}
1844		2635
1845	=item $player_object->enter_exit ($exit_object)	2636	=item $player_object->enter_exit ($exit_object)
1846		2637
…		…
1866	}	2657	}
1867		2658
1868	sub prepare_random_map {	2659	sub prepare_random_map {
1869	my ($exit) = @_;	2660	my ($exit) = @_;
1870		2661
1871	my $guard = cf::lock_acquire "exit_prepare:$exit";
1872
1873	# all this does is basically replace the /! path by	2662	# all this does is basically replace the /! path by
1874	# a new random map path (?random/...) with a seed	2663	# a new random map path (?random/...) with a seed
1875	# that depends on the exit object	2664	# that depends on the exit object
1876		2665
1877	my $rmp = parse_random_map_params $exit->msg;	2666	my $rmp = parse_random_map_params $exit->msg;
…		…
1879	if ($exit->map) {	2668	if ($exit->map) {
1880	$rmp->{region} = $exit->region->name;	2669	$rmp->{region} = $exit->region->name;
1881	$rmp->{origin_map} = $exit->map->path;	2670	$rmp->{origin_map} = $exit->map->path;
1882	$rmp->{origin_x} = $exit->x;	2671	$rmp->{origin_x} = $exit->x;
1883	$rmp->{origin_y} = $exit->y;	2672	$rmp->{origin_y} = $exit->y;
		2673
		2674	$exit->map->touch;
1884	}	2675	}
1885		2676
1886	$rmp->{random_seed} ||= $exit->random_seed;	2677	$rmp->{random_seed} ||= $exit->random_seed;
1887		2678
1888	my $data = cf::to_json $rmp;	2679	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1889	my $md5 = Digest::MD5::md5_hex $data;	2680	my $md5 = Digest::MD5::md5_hex $data;
1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2681	my $meta = "$RANDOMDIR/$md5.meta";
1891		2682
1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2683	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1893	aio_write $fh, 0, (length $data), $data, 0;	2684	aio_write $fh, 0, (length $data), $data, 0;
1894	undef $fh;	2685	undef $fh;
1895	aio_rename "$meta~", $meta;	2686	aio_rename "$meta~", $meta;
1896		2687
		2688	my $slaying = "?random/$md5";
		2689
		2690	if ($exit->valid) {
1897	$exit->slaying ("?random/$md5");	2691	$exit->slaying ("?random/$md5");
1898	$exit->msg (undef);	2692	$exit->msg (undef);
		2693	}
1899	}	2694	}
1900	}	2695	}
1901		2696
1902	sub cf::object::player::enter_exit {	2697	sub cf::object::player::enter_exit {
1903	my ($self, $exit) = @_;	2698	my ($self, $exit) = @_;
1904		2699
1905	return unless $self->type == cf::PLAYER;	2700	return unless $self->type == cf::PLAYER;
1906		2701
1907	if ($exit->slaying eq "/!") {
1908	#TODO: this should de-fi-ni-te-ly not be a sync-job
1909	cf::sync_job { prepare_random_map $exit };
1910	}
1911
1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1913	my $hp = $exit->stats->hp;
1914	my $sp = $exit->stats->sp;
1915
1916	$self->enter_link;	2702	$self->enter_link;
1917		2703
1918	(async {	2704	(async {
1919	$self->deactivate_recursive; # just to be sure	2705	$Coro::current->{desc} = "enter_exit";
		2706
1920	unless (eval {	2707	unless (eval {
		2708	$self->deactivate_recursive; # just to be sure
		2709
		2710	# random map handling
		2711	{
		2712	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2713
		2714	prepare_random_map $exit
		2715	if $exit->slaying eq "/!";
		2716	}
		2717
		2718	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2719	my $x = $exit->stats->hp;
		2720	my $y = $exit->stats->sp;
		2721
1921	$self->goto ($slaying, $hp, $sp);	2722	$self->goto ($map, $x, $y);
1922		2723
		2724	# if exit is damned, update players death & WoR home-position
		2725	$self->contr->savebed ($map, $x, $y)
		2726	if $exit->flag (cf::FLAG_DAMNED);
		2727
1923	1;	2728	1
1924	}) {	2729	}) {
1925	$self->message ("Something went wrong deep within the crossfire server. "	2730	$self->message ("Something went wrong deep within the deliantra server. "
1926	. "I'll try to bring you back to the map you were before. "	2731	. "I'll try to bring you back to the map you were before. "
1927	. "Please report this to the dungeon master!",	2732	. "Please report this to the dungeon master!",
1928	cf::NDI_UNIQUE | cf::NDI_RED);	2733	cf::NDI_UNIQUE | cf::NDI_RED);
1929		2734
1930	warn "ERROR in enter_exit: $@";	2735	warn "ERROR in enter_exit: $@";
1931	$self->leave_link;	2736	$self->leave_link;
1932	}	2737	}
1933	})->prio (1);	2738	})->prio (1);
…		…
1946		2751
1947	sub cf::client::send_drawinfo {	2752	sub cf::client::send_drawinfo {
1948	my ($self, $text, $flags) = @_;	2753	my ($self, $text, $flags) = @_;
1949		2754
1950	utf8::encode $text;	2755	utf8::encode $text;
1951	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2756	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1952	}	2757	}
1953		2758
		2759	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2760
		2761	Send a drawinfo or msg packet to the client, formatting the msg for the
		2762	client if neccessary. C<$type> should be a string identifying the type of
		2763	the message, with C<log> being the default. If C<$color> is negative, suppress
		2764	the message unless the client supports the msg packet.
		2765
		2766	=cut
		2767
		2768	# non-persistent channels (usually the info channel)
		2769	our %CHANNEL = (
		2770	"c/motd" => {
		2771	id => "infobox",
		2772	title => "MOTD",
		2773	reply => undef,
		2774	tooltip => "The message of the day",
		2775	},
		2776	"c/identify" => {
		2777	id => "infobox",
		2778	title => "Identify",
		2779	reply => undef,
		2780	tooltip => "Items recently identified",
		2781	},
		2782	"c/examine" => {
		2783	id => "infobox",
		2784	title => "Examine",
		2785	reply => undef,
		2786	tooltip => "Signs and other items you examined",
		2787	},
		2788	"c/book" => {
		2789	id => "infobox",
		2790	title => "Book",
		2791	reply => undef,
		2792	tooltip => "The contents of a note or book",
		2793	},
		2794	"c/lookat" => {
		2795	id => "infobox",
		2796	title => "Look",
		2797	reply => undef,
		2798	tooltip => "What you saw there",
		2799	},
		2800	"c/who" => {
		2801	id => "infobox",
		2802	title => "Players",
		2803	reply => undef,
		2804	tooltip => "Shows players who are currently online",
		2805	},
		2806	"c/body" => {
		2807	id => "infobox",
		2808	title => "Body Parts",
		2809	reply => undef,
		2810	tooltip => "Shows which body parts you posess and are available",
		2811	},
		2812	"c/statistics" => {
		2813	id => "infobox",
		2814	title => "Statistics",
		2815	reply => undef,
		2816	tooltip => "Shows your primary statistics",
		2817	},
		2818	"c/skills" => {
		2819	id => "infobox",
		2820	title => "Skills",
		2821	reply => undef,
		2822	tooltip => "Shows your experience per skill and item power",
		2823	},
		2824	"c/shopitems" => {
		2825	id => "infobox",
		2826	title => "Shop Items",
		2827	reply => undef,
		2828	tooltip => "Shows the items currently for sale in this shop",
		2829	},
		2830	"c/resistances" => {
		2831	id => "infobox",
		2832	title => "Resistances",
		2833	reply => undef,
		2834	tooltip => "Shows your resistances",
		2835	},
		2836	"c/pets" => {
		2837	id => "infobox",
		2838	title => "Pets",
		2839	reply => undef,
		2840	tooltip => "Shows information abotu your pets/a specific pet",
		2841	},
		2842	"c/perceiveself" => {
		2843	id => "infobox",
		2844	title => "Perceive Self",
		2845	reply => undef,
		2846	tooltip => "You gained detailed knowledge about yourself",
		2847	},
		2848	"c/uptime" => {
		2849	id => "infobox",
		2850	title => "Uptime",
		2851	reply => undef,
		2852	tooltip => "How long the server has been running since last restart",
		2853	},
		2854	"c/mapinfo" => {
		2855	id => "infobox",
		2856	title => "Map Info",
		2857	reply => undef,
		2858	tooltip => "Information related to the maps",
		2859	},
		2860	"c/party" => {
		2861	id => "party",
		2862	title => "Party",
		2863	reply => "gsay ",
		2864	tooltip => "Messages and chat related to your party",
		2865	},
		2866	"c/death" => {
		2867	id => "death",
		2868	title => "Death",
		2869	reply => undef,
		2870	tooltip => "Reason for and more info about your most recent death",
		2871	},
		2872	"c/say" => $SAY_CHANNEL,
		2873	"c/chat" => $CHAT_CHANNEL,
		2874	);
		2875
		2876	sub cf::client::send_msg {
		2877	my ($self, $channel, $msg, $color, @extra) = @_;
		2878
		2879	$msg = $self->pl->expand_cfpod ($msg)
		2880	unless $color & cf::NDI_VERBATIM;
		2881
		2882	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2883
		2884	# check predefined channels, for the benefit of C
		2885	if ($CHANNEL{$channel}) {
		2886	$channel = $CHANNEL{$channel};
		2887
		2888	$self->ext_msg (channel_info => $channel);
		2889	$channel = $channel->{id};
		2890
		2891	} elsif (ref $channel) {
		2892	# send meta info to client, if not yet sent
		2893	unless (exists $self->{channel}{$channel->{id}}) {
		2894	$self->{channel}{$channel->{id}} = $channel;
		2895	$self->ext_msg (channel_info => $channel);
		2896	}
		2897
		2898	$channel = $channel->{id};
		2899	}
		2900
		2901	return unless @extra || length $msg;
		2902
		2903	# default colour, mask it out
		2904	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2905	if $color & cf::NDI_DEF;
		2906
		2907	my $pkt = "msg "
		2908	. $self->{json_coder}->encode (
		2909	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2910	);
		2911
		2912	# try lzf for large packets
		2913	$pkt = "lzf " . Compress::LZF::compress $pkt
		2914	if 1024 <= length $pkt and $self->{can_lzf};
		2915
		2916	# split very large packets
		2917	if (8192 < length $pkt and $self->{can_lzf}) {
		2918	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2919	$pkt = "frag";
		2920	}
		2921
		2922	$self->send_packet ($pkt);
		2923	}
		2924
		2925	=item $client->ext_msg ($type, @msg)
		2926
		2927	Sends an ext event to the client.
		2928
		2929	=cut
		2930
		2931	sub cf::client::ext_msg($$@) {
		2932	my ($self, $type, @msg) = @_;
		2933
		2934	if ($self->extcmd == 2) {
		2935	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2936	} elsif ($self->extcmd == 1) { # TODO: remove
		2937	push @msg, msgtype => "event_$type";
		2938	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2939	}
		2940	}
		2941
		2942	=item $client->ext_reply ($msgid, @msg)
		2943
		2944	Sends an ext reply to the client.
		2945
		2946	=cut
		2947
		2948	sub cf::client::ext_reply($$@) {
		2949	my ($self, $id, @msg) = @_;
		2950
		2951	if ($self->extcmd == 2) {
		2952	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2953	} elsif ($self->extcmd == 1) {
		2954	#TODO: version 1, remove
		2955	unshift @msg, msgtype => "reply", msgid => $id;
		2956	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2957	}
		2958	}
1954		2959
1955	=item $success = $client->query ($flags, "text", \&cb)	2960	=item $success = $client->query ($flags, "text", \&cb)
1956		2961
1957	Queues a query to the client, calling the given callback with	2962	Queues a query to the client, calling the given callback with
1958	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2963	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1959	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2964	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1960		2965
1961	Queries can fail, so check the return code. Or don't, as queries will become	2966	Queries can fail, so check the return code. Or don't, as queries will
1962	reliable at some point in the future.	2967	become reliable at some point in the future.
1963		2968
1964	=cut	2969	=cut
1965		2970
1966	sub cf::client::query {	2971	sub cf::client::query {
1967	my ($self, $flags, $text, $cb) = @_;	2972	my ($self, $flags, $text, $cb) = @_;
…		…
1975	utf8::encode $text;	2980	utf8::encode $text;
1976	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2981	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1977		2982
1978	$self->send_packet ($self->{query_queue}[0][0])	2983	$self->send_packet ($self->{query_queue}[0][0])
1979	if @{ $self->{query_queue} } == 1;	2984	if @{ $self->{query_queue} } == 1;
		2985
		2986	1
1980	}	2987	}
1981		2988
1982	cf::client->attach (	2989	cf::client->attach (
		2990	on_connect => sub {
		2991	my ($ns) = @_;
		2992
		2993	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2994	},
1983	on_reply => sub {	2995	on_reply => sub {
1984	my ($ns, $msg) = @_;	2996	my ($ns, $msg) = @_;
1985		2997
1986	# this weird shuffling is so that direct followup queries	2998	# this weird shuffling is so that direct followup queries
1987	# get handled first	2999	# get handled first
1988	my $queue = delete $ns->{query_queue}	3000	my $queue = delete $ns->{query_queue}
1989	or return; # be conservative, not sure how that can happen, but we saw a crash here	3001	or return; # be conservative, not sure how that can happen, but we saw a crash here
1990		3002
1991	(shift @$queue)->[1]->($msg);	3003	(shift @$queue)->[1]->($msg);
		3004	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992		3005
1993	push @{ $ns->{query_queue} }, @$queue;	3006	push @{ $ns->{query_queue} }, @$queue;
1994		3007
1995	if (@{ $ns->{query_queue} } == @$queue) {	3008	if (@{ $ns->{query_queue} } == @$queue) {
1996	if (@$queue) {	3009	if (@$queue) {
…		…
1998	} else {	3011	} else {
1999	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3012	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2000	}	3013	}
2001	}	3014	}
2002	},	3015	},
		3016	on_exticmd => sub {
		3017	my ($ns, $buf) = @_;
		3018
		3019	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3020
		3021	if (ref $msg) {
		3022	my ($type, $reply, @payload) =
		3023	"ARRAY" eq ref $msg
		3024	? @$msg
		3025	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3026
		3027	my @reply;
		3028
		3029	if (my $cb = $EXTICMD{$type}) {
		3030	@reply = $cb->($ns, @payload);
		3031	}
		3032
		3033	$ns->ext_reply ($reply, @reply)
		3034	if $reply;
		3035
		3036	} else {
		3037	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3038	}
		3039
		3040	cf::override;
		3041	},
2003	);	3042	);
2004		3043
2005	=item $client->async (\&cb)	3044	=item $client->async (\&cb)
2006		3045
2007	Create a new coroutine, running the specified callback. The coroutine will	3046	Create a new coroutine, running the specified callback. The coroutine will
…		…
2048	our $safe = new Safe "safe";	3087	our $safe = new Safe "safe";
2049	our $safe_hole = new Safe::Hole;	3088	our $safe_hole = new Safe::Hole;
2050		3089
2051	$SIG{FPE} = 'IGNORE';	3090	$SIG{FPE} = 'IGNORE';
2052		3091
2053	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3092	$safe->permit_only (Opcode::opset qw(
		3093	:base_core :base_mem :base_orig :base_math
		3094	grepstart grepwhile mapstart mapwhile
		3095	sort time
		3096	));
2054		3097
2055	# here we export the classes and methods available to script code	3098	# here we export the classes and methods available to script code
2056		3099
2057	=pod	3100	=pod
2058		3101
2059	The following fucntions and emthods are available within a safe environment:	3102	The following functions and methods are available within a safe environment:
2060		3103
2061	cf::object contr pay_amount pay_player map	3104	cf::object
		3105	contr pay_amount pay_player map x y force_find force_add destroy
		3106	insert remove name archname title slaying race decrease split
		3107	value
		3108
2062	cf::object::player player	3109	cf::object::player
2063	cf::player peaceful	3110	player
2064	cf::map trigger	3111
		3112	cf::player
		3113	peaceful
		3114
		3115	cf::map
		3116	trigger
2065		3117
2066	=cut	3118	=cut
2067		3119
2068	for (	3120	for (
2069	["cf::object" => qw(contr pay_amount pay_player map)],	3121	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3122	insert remove inv nrof name archname title slaying race
		3123	decrease split destroy change_exp value msg lore send_msg)],
2070	["cf::object::player" => qw(player)],	3124	["cf::object::player" => qw(player)],
2071	["cf::player" => qw(peaceful)],	3125	["cf::player" => qw(peaceful send_msg)],
2072	["cf::map" => qw(trigger)],	3126	["cf::map" => qw(trigger)],
2073	) {	3127	) {
2074	no strict 'refs';	3128	no strict 'refs';
2075	my ($pkg, @funs) = @$_;	3129	my ($pkg, @funs) = @$_;
2076	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3130	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2093	my ($code, %vars) = @_;	3147	my ($code, %vars) = @_;
2094		3148
2095	my $qcode = $code;	3149	my $qcode = $code;
2096	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3150	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2097	$qcode =~ s/\n/\\n/g;	3151	$qcode =~ s/\n/\\n/g;
		3152
		3153	%vars = (_dummy => 0) unless %vars;
2098		3154
2099	local $_;	3155	local $_;
2100	local @safe::cf::_safe_eval_args = values %vars;	3156	local @safe::cf::_safe_eval_args = values %vars;
2101		3157
2102	my $eval =	3158	my $eval =
…		…
2145	=back	3201	=back
2146		3202
2147	=cut	3203	=cut
2148		3204
2149	#############################################################################	3205	#############################################################################
		3206	# the server's init and main functions
2150		3207
2151	=head2 EXTENSION DATABASE SUPPORT	3208	sub load_facedata($) {
		3209	my ($path) = @_;
2152		3210
2153	Crossfire maintains a very simple database for extension use. It can	3211	# HACK to clear player env face cache, we need some signal framework
2154	currently store anything that can be serialised using Storable, which	3212	# for this (global event?)
2155	excludes objects.	3213	%ext::player_env::MUSIC_FACE_CACHE = ();
2156		3214
2157	The parameter C<$family> should best start with the name of the extension	3215	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2158	using it, it should be unique.
2159		3216
2160	=over 4	3217	warn "loading facedata from $path\n";
2161		3218
2162	=item $hashref = cf::db_get $family	3219	my $facedata;
		3220	0 < aio_load $path, $facedata
		3221	or die "$path: $!";
2163		3222
2164	Return a hashref for use by the extension C<$family>, which can be	3223	$facedata = Coro::Storable::thaw $facedata;
2165	modified. After modifications, you have to call C<cf::db_dirty> or
2166	C<cf::db_sync>.
2167		3224
2168	=item $value = cf::db_get $family => $key	3225	$facedata->{version} == 2
		3226	or cf::cleanup "$path: version mismatch, cannot proceed.";
2169		3227
2170	Returns a single value from the database	3228	# patch in the exptable
2171		3229	$facedata->{resource}{"res/exp_table"} = {
2172	=item cf::db_put $family => $hashref	3230	type => FT_RSRC,
2173		3231	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2174	Stores the given family hashref into the database. Updates are delayed, if
2175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2176
2177	=item cf::db_put $family => $key => $value
2178
2179	Stores the given C<$value> in the family hash. Updates are delayed, if you
2180	want the data to be synced to disk immediately, use C<cf::db_sync>.
2181
2182	=item cf::db_dirty
2183
2184	Marks the database as dirty, to be updated at a later time.
2185
2186	=item cf::db_sync
2187
2188	Immediately write the database to disk I<if it is dirty>.
2189
2190	=cut
2191
2192	our $DB;
2193
2194	{
2195	my $path = cf::localdir . "/database.pst";
2196
2197	sub db_load() {
2198	$DB = stat $path ? Storable::retrieve $path : { };
2199	}	3232	};
		3233	cf::cede_to_tick;
2200		3234
2201	my $pid;
2202
2203	sub db_save() {
2204	waitpid $pid, 0 if $pid;
2205	if (0 == ($pid = fork)) {
2206	$DB->{_meta}{version} = 1;
2207	Storable::nstore $DB, "$path~";
2208	rename "$path~", $path;
2209	cf::_exit 0 if defined $pid;
2210	}
2211	}	3235	{
		3236	my $faces = $facedata->{faceinfo};
2212		3237
2213	my $dirty;	3238	while (my ($face, $info) = each %$faces) {
		3239	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2214		3240
2215	sub db_sync() {	3241	cf::face::set_visibility $idx, $info->{visibility};
2216	db_save if $dirty;	3242	cf::face::set_magicmap $idx, $info->{magicmap};
2217	undef $dirty;	3243	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2218	}	3244	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2219		3245
2220	my $idle = Event->idle (	3246	cf::cede_to_tick;
2221	reentrant => 0,
2222	min => 10,
2223	max => 20,
2224	repeat => 0,
2225	data => WF_AUTOCANCEL,
2226	cb => \&db_sync,
2227	);
2228
2229	sub db_dirty() {
2230	$dirty = 1;
2231	$idle->start;
2232	}
2233
2234	sub db_get($;$) {
2235	@_ >= 2
2236	? $DB->{$_[0]}{$_[1]}
2237	: ($DB->{$_[0]} ||= { })
2238	}
2239
2240	sub db_put($$;$) {
2241	if (@_ >= 3) {
2242	$DB->{$_[0]}{$_[1]} = $_[2];
2243	} else {
2244	$DB->{$_[0]} = $_[1];
2245	}
2246	db_dirty;
2247	}
2248
2249	cf::global->attach (
2250	prio => 10000,
2251	on_cleanup => sub {
2252	db_sync;
2253	},	3247	}
2254	);
2255	}
2256		3248
2257	#############################################################################	3249	while (my ($face, $info) = each %$faces) {
2258	# the server's main()	3250	next unless $info->{smooth};
2259		3251
2260	sub cfg_load {	3252	my $idx = cf::face::find $face
		3253	or next;
		3254
		3255	if (my $smooth = cf::face::find $info->{smooth}) {
		3256	cf::face::set_smooth $idx, $smooth;
		3257	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3258	} else {
		3259	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3260	}
		3261
		3262	cf::cede_to_tick;
		3263	}
		3264	}
		3265
		3266	{
		3267	my $anims = $facedata->{animinfo};
		3268
		3269	while (my ($anim, $info) = each %$anims) {
		3270	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3271	cf::cede_to_tick;
		3272	}
		3273
		3274	cf::anim::invalidate_all; # d'oh
		3275	}
		3276
		3277	{
		3278	# TODO: for gcfclient pleasure, we should give resources
		3279	# that gcfclient doesn't grok a >10000 face index.
		3280	my $res = $facedata->{resource};
		3281
		3282	while (my ($name, $info) = each %$res) {
		3283	if (defined $info->{type}) {
		3284	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3285	my $data;
		3286
		3287	if ($info->{type} & 1) {
		3288	# prepend meta info
		3289
		3290	my $meta = $enc->encode ({
		3291	name => $name,
		3292	%{ $info->{meta} || {} },
		3293	});
		3294
		3295	$data = pack "(w/a*)*", $meta, $info->{data};
		3296	} else {
		3297	$data = $info->{data};
		3298	}
		3299
		3300	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3301	cf::face::set_type $idx, $info->{type};
		3302	} else {
		3303	$RESOURCE{$name} = $info;
		3304	}
		3305
		3306	cf::cede_to_tick;
		3307	}
		3308	}
		3309
		3310	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3311
		3312	1
		3313	}
		3314
		3315	cf::global->attach (on_resource_update => sub {
		3316	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3317	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3318
		3319	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3320	my $sound = $soundconf->{compat}[$_]
		3321	or next;
		3322
		3323	my $face = cf::face::find "sound/$sound->[1]";
		3324	cf::sound::set $sound->[0] => $face;
		3325	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3326	}
		3327
		3328	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3329	my $face = cf::face::find "sound/$v";
		3330	cf::sound::set $k => $face;
		3331	}
		3332	}
		3333	});
		3334
		3335	register_exticmd fx_want => sub {
		3336	my ($ns, $want) = @_;
		3337
		3338	while (my ($k, $v) = each %$want) {
		3339	$ns->fx_want ($k, $v);
		3340	}
		3341	};
		3342
		3343	sub load_resource_file($) {
		3344	my $guard = lock_acquire "load_resource_file";
		3345
		3346	my $status = load_resource_file_ $_[0];
		3347	get_slot 0.1, 100;
		3348	cf::arch::commit_load;
		3349
		3350	$status
		3351	}
		3352
		3353	sub reload_regions {
		3354	# HACK to clear player env face cache, we need some signal framework
		3355	# for this (global event?)
		3356	%ext::player_env::MUSIC_FACE_CACHE = ();
		3357
		3358	load_resource_file "$MAPDIR/regions"
		3359	or die "unable to load regions file\n";
		3360
		3361	for (cf::region::list) {
		3362	$_->{match} = qr/$_->{match}/
		3363	if exists $_->{match};
		3364	}
		3365	}
		3366
		3367	sub reload_facedata {
		3368	load_facedata "$DATADIR/facedata"
		3369	or die "unable to load facedata\n";
		3370	}
		3371
		3372	sub reload_archetypes {
		3373	load_resource_file "$DATADIR/archetypes"
		3374	or die "unable to load archetypes\n";
		3375	}
		3376
		3377	sub reload_treasures {
		3378	load_resource_file "$DATADIR/treasures"
		3379	or die "unable to load treasurelists\n";
		3380	}
		3381
		3382	sub reload_resources {
		3383	warn "reloading resource files...\n";
		3384
		3385	reload_facedata;
		3386	reload_archetypes;
		3387	reload_regions;
		3388	reload_treasures;
		3389
		3390	warn "finished reloading resource files\n";
		3391	}
		3392
		3393	sub reload_config {
		3394	warn "reloading config file...\n";
		3395
2261	open my $fh, "<:utf8", cf::confdir . "/config"	3396	open my $fh, "<:utf8", "$CONFDIR/config"
2262	or return;	3397	or return;
2263		3398
2264	local $/;	3399	local $/;
2265	*CFG = YAML::Syck::Load <$fh>;	3400	*CFG = YAML::XS::Load scalar <$fh>;
2266		3401
2267	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3402	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2268		3403
2269	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3404	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2270	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3405	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2274	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3409	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2275	and die "WARNING: m(un)lockall failed: $!\n";	3410	and die "WARNING: m(un)lockall failed: $!\n";
2276	};	3411	};
2277	warn $@ if $@;	3412	warn $@ if $@;
2278	}	3413	}
		3414
		3415	warn "finished reloading resource files\n";
		3416	}
		3417
		3418	sub pidfile() {
		3419	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3420	or die "$PIDFILE: $!";
		3421	flock $fh, &Fcntl::LOCK_EX
		3422	or die "$PIDFILE: flock: $!";
		3423	$fh
		3424	}
		3425
		3426	# make sure only one server instance is running at any one time
		3427	sub atomic {
		3428	my $fh = pidfile;
		3429
		3430	my $pid = <$fh>;
		3431	kill 9, $pid if $pid > 0;
		3432
		3433	seek $fh, 0, 0;
		3434	print $fh $$;
		3435	}
		3436
		3437	sub main_loop {
		3438	warn "EV::loop starting\n";
		3439	if (1) {
		3440	EV::loop;
		3441	}
		3442	warn "EV::loop returned\n";
		3443	goto &main_loop unless $REALLY_UNLOOP;
2279	}	3444	}
2280		3445
2281	sub main {	3446	sub main {
		3447	cf::init_globals; # initialise logging
		3448
		3449	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3450	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3451	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3452	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3453
		3454	cf::init_experience;
		3455	cf::init_anim;
		3456	cf::init_attackmess;
		3457	cf::init_dynamic;
		3458
		3459	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3460
2282	# we must not ever block the main coroutine	3461	# we must not ever block the main coroutine
2283	local $Coro::idle = sub {	3462	local $Coro::idle = sub {
2284	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3463	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2285	(async {	3464	(async {
2286	Event::one_event;	3465	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3466	EV::loop EV::LOOP_ONESHOT;
2287	})->prio (Coro::PRIO_MAX);	3467	})->prio (Coro::PRIO_MAX);
2288	};	3468	};
2289		3469
2290	cfg_load;	3470	evthread_start IO::AIO::poll_fileno;
2291	db_load;	3471
		3472	cf::sync_job {
		3473	reload_resources;
		3474	reload_config;
		3475	db_init;
		3476
		3477	cf::load_settings;
		3478	cf::load_materials;
		3479	cf::init_uuid;
		3480	cf::init_signals;
		3481	cf::init_commands;
		3482	cf::init_skills;
		3483
		3484	cf::init_beforeplay;
		3485
		3486	atomic;
		3487
2292	load_extensions;	3488	load_extensions;
2293		3489
2294	$TICK_WATCHER->start;	3490	utime time, time, $RUNTIMEFILE;
2295	Event::loop;	3491
		3492	# no (long-running) fork's whatsoever before this point(!)
		3493	use POSIX ();
		3494	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3495
		3496	(pop @POST_INIT)->(0) while @POST_INIT;
		3497	};
		3498
		3499	main_loop;
2296	}	3500	}
2297		3501
2298	#############################################################################	3502	#############################################################################
2299	# initialisation and cleanup	3503	# initialisation and cleanup
2300		3504
2301	# install some emergency cleanup handlers	3505	# install some emergency cleanup handlers
2302	BEGIN {	3506	BEGIN {
		3507	our %SIGWATCHER = ();
2303	for my $signal (qw(INT HUP TERM)) {	3508	for my $signal (qw(INT HUP TERM)) {
2304	Event->signal (	3509	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2305	reentrant => 0,
2306	data => WF_AUTOCANCEL,
2307	signal => $signal,
2308	prio => 0,
2309	cb => sub {
2310	cf::cleanup "SIG$signal";	3510	cf::cleanup "SIG$signal";
2311	},
2312	);	3511	};
		3512	}
		3513	}
		3514
		3515	sub write_runtime_sync {
		3516	# first touch the runtime file to show we are still running:
		3517	# the fsync below can take a very very long time.
		3518
		3519	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3520
		3521	my $guard = cf::lock_acquire "write_runtime";
		3522
		3523	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3524	or return;
		3525
		3526	my $value = $cf::RUNTIME + 90 + 10;
		3527	# 10 is the runtime save interval, for a monotonic clock
		3528	# 60 allows for the watchdog to kill the server.
		3529
		3530	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3531	and return;
		3532
		3533	# always fsync - this file is important
		3534	aio_fsync $fh
		3535	and return;
		3536
		3537	# touch it again to show we are up-to-date
		3538	aio_utime $fh, undef, undef;
		3539
		3540	close $fh
		3541	or return;
		3542
		3543	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3544	and return;
		3545
		3546	warn "runtime file written.\n";
		3547
2313	}	3548	1
		3549	}
		3550
		3551	our $uuid_lock;
		3552	our $uuid_skip;
		3553
		3554	sub write_uuid_sync($) {
		3555	$uuid_skip ||= $_[0];
		3556
		3557	return if $uuid_lock;
		3558	local $uuid_lock = 1;
		3559
		3560	my $uuid = "$LOCALDIR/uuid";
		3561
		3562	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3563	or return;
		3564
		3565	my $value = uuid_seq uuid_cur;
		3566
		3567	unless ($value) {
		3568	warn "cowardly refusing to write zero uuid value!\n";
		3569	return;
		3570	}
		3571
		3572	my $value = uuid_str $value + $uuid_skip;
		3573	$uuid_skip = 0;
		3574
		3575	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3576	and return;
		3577
		3578	# always fsync - this file is important
		3579	aio_fsync $fh
		3580	and return;
		3581
		3582	close $fh
		3583	or return;
		3584
		3585	aio_rename "$uuid~", $uuid
		3586	and return;
		3587
		3588	warn "uuid file written ($value).\n";
		3589
		3590	1
		3591
		3592	}
		3593
		3594	sub write_uuid($$) {
		3595	my ($skip, $sync) = @_;
		3596
		3597	$sync ? write_uuid_sync $skip
		3598	: async { write_uuid_sync $skip };
2314	}	3599	}
2315		3600
2316	sub emergency_save() {	3601	sub emergency_save() {
2317	my $freeze_guard = cf::freeze_mainloop;	3602	my $freeze_guard = cf::freeze_mainloop;
2318		3603
2319	warn "enter emergency perl save\n";	3604	warn "emergency_perl_save: enter\n";
2320		3605
2321	cf::sync_job {	3606	cf::sync_job {
		3607	# this is a trade-off: we want to be very quick here, so
		3608	# save all maps without fsync, and later call a global sync
		3609	# (which in turn might be very very slow)
		3610	local $USE_FSYNC = 0;
		3611
2322	# use a peculiar iteration method to avoid tripping on perl	3612	# use a peculiar iteration method to avoid tripping on perl
2323	# refcount bugs in for. also avoids problems with players	3613	# refcount bugs in for. also avoids problems with players
2324	# and maps saved/destroyed asynchronously.	3614	# and maps saved/destroyed asynchronously.
2325	warn "begin emergency player save\n";	3615	warn "emergency_perl_save: begin player save\n";
2326	for my $login (keys %cf::PLAYER) {	3616	for my $login (keys %cf::PLAYER) {
2327	my $pl = $cf::PLAYER{$login} or next;	3617	my $pl = $cf::PLAYER{$login} or next;
2328	$pl->valid or next;	3618	$pl->valid or next;
		3619	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2329	$pl->save;	3620	$pl->save;
2330	}	3621	}
2331	warn "end emergency player save\n";	3622	warn "emergency_perl_save: end player save\n";
2332		3623
2333	warn "begin emergency map save\n";	3624	warn "emergency_perl_save: begin map save\n";
2334	for my $path (keys %cf::MAP) {	3625	for my $path (keys %cf::MAP) {
2335	my $map = $cf::MAP{$path} or next;	3626	my $map = $cf::MAP{$path} or next;
2336	$map->valid or next;	3627	$map->valid or next;
2337	$map->save;	3628	$map->save;
2338	}	3629	}
2339	warn "end emergency map save\n";	3630	warn "emergency_perl_save: end map save\n";
		3631
		3632	warn "emergency_perl_save: begin database checkpoint\n";
		3633	BDB::db_env_txn_checkpoint $DB_ENV;
		3634	warn "emergency_perl_save: end database checkpoint\n";
		3635
		3636	warn "emergency_perl_save: begin write uuid\n";
		3637	write_uuid_sync 1;
		3638	warn "emergency_perl_save: end write uuid\n";
2340	};	3639	};
2341		3640
		3641	warn "emergency_perl_save: starting sync()\n";
		3642	IO::AIO::aio_sync sub {
		3643	warn "emergency_perl_save: finished sync()\n";
		3644	};
		3645
2342	warn "leave emergency perl save\n";	3646	warn "emergency_perl_save: leave\n";
2343	}	3647	}
2344		3648
		3649	sub post_cleanup {
		3650	my ($make_core) = @_;
		3651
		3652	warn Carp::longmess "post_cleanup backtrace"
		3653	if $make_core;
		3654
		3655	my $fh = pidfile;
		3656	unlink $PIDFILE if <$fh> == $$;
		3657	}
		3658
		3659	# a safer delete_package, copied from Symbol
		3660	sub clear_package($) {
		3661	my $pkg = shift;
		3662
		3663	# expand to full symbol table name if needed
		3664	unless ($pkg =~ /^main::.*::$/) {
		3665	$pkg = "main$pkg" if $pkg =~ /^::/;
		3666	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3667	$pkg .= '::' unless $pkg =~ /::$/;
		3668	}
		3669
		3670	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3671	my $stem_symtab = *{$stem}{HASH};
		3672
		3673	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3674	or return;
		3675
		3676	# clear all symbols
		3677	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3678	for my $name (keys %$leaf_symtab) {
		3679	_gv_clear *{"$pkg$name"};
		3680	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3681	}
		3682	warn "cleared package $pkg\n";#d#
		3683	}
		3684
2345	sub reload() {	3685	sub do_reload_perl() {
2346	# can/must only be called in main	3686	# can/must only be called in main
2347	if ($Coro::current != $Coro::main) {	3687	if ($Coro::current != $Coro::main) {
2348	warn "can only reload from main coroutine";	3688	warn "can only reload from main coroutine";
2349	return;	3689	return;
2350	}	3690	}
2351		3691
		3692	return if $RELOAD++;
		3693
		3694	my $t1 = EV::time;
		3695
		3696	while ($RELOAD) {
2352	warn "reloading...";	3697	warn "reloading...";
2353		3698
2354	warn "cancelling server ticker";	3699	warn "entering sync_job";
2355	$TICK_WATCHER->cancel;
2356		3700
		3701	cf::sync_job {
		3702	cf::write_runtime_sync; # external watchdog should not bark
2357	cf::emergency_save;	3703	cf::emergency_save;
		3704	cf::write_runtime_sync; # external watchdog should not bark
2358		3705
2359	eval {	3706	warn "syncing database to disk";
		3707	BDB::db_env_txn_checkpoint $DB_ENV;
		3708
2360	# if anything goes wrong in here, we should simply crash as we already saved	3709	# if anything goes wrong in here, we should simply crash as we already saved
2361		3710
2362	warn "syncing database to disk";
2363	cf::db_sync;
2364
2365	warn "cancelling all WF_AUTOCANCEL watchers";
2366	for (Event::all_watchers) {
2367	$_->cancel if $_->data & WF_AUTOCANCEL;
2368	}
2369
2370	warn "flushing outstanding aio requests";	3711	warn "flushing outstanding aio requests";
2371	for (;;) {	3712	while (IO::AIO::nreqs || BDB::nreqs) {
2372	IO::AIO::flush;	3713	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2373	Coro::cede;
2374	last unless IO::AIO::nreqs;
2375	warn "iterate...";
2376	}
2377
2378	warn "cancelling all extension coros";
2379	$_->cancel for values %EXT_CORO;
2380	%EXT_CORO = ();
2381
2382	warn "removing commands";
2383	%COMMAND = ();
2384
2385	warn "removing ext commands";
2386	%EXTCMD = ();
2387
2388	warn "unloading/nuking all extensions";
2389	for my $pkg (@EXTS) {
2390	warn "... unloading $pkg";
2391
2392	if (my $cb = $pkg->can ("unload")) {
2393	eval {
2394	$cb->($pkg);
2395	1
2396	} or warn "$pkg unloaded, but with errors: $@";
2397	}	3714	}
2398		3715
2399	warn "... nuking $pkg";	3716	warn "cancelling all extension coros";
2400	Symbol::delete_package $pkg;	3717	$_->cancel for values %EXT_CORO;
2401	}	3718	%EXT_CORO = ();
2402		3719
2403	warn "unloading all perl modules loaded from $LIBDIR";	3720	warn "removing commands";
2404	while (my ($k, $v) = each %INC) {	3721	%COMMAND = ();
2405	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2406		3722
		3723	warn "removing ext/exti commands";
		3724	%EXTCMD = ();
		3725	%EXTICMD = ();
		3726
		3727	warn "unloading/nuking all extensions";
		3728	for my $pkg (@EXTS) {
2407	warn "... unloading $k";	3729	warn "... unloading $pkg";
2408	delete $INC{$k};
2409		3730
2410	$k =~ s/\.pm$//;
2411	$k =~ s/\//::/g;
2412
2413	if (my $cb = $k->can ("unload_module")) {	3731	if (my $cb = $pkg->can ("unload")) {
		3732	eval {
2414	$cb->();	3733	$cb->($pkg);
		3734	1
		3735	} or warn "$pkg unloaded, but with errors: $@";
		3736	}
		3737
		3738	warn "... clearing $pkg";
		3739	clear_package $pkg;
2415	}	3740	}
2416		3741
2417	Symbol::delete_package $k;	3742	warn "unloading all perl modules loaded from $LIBDIR";
		3743	while (my ($k, $v) = each %INC) {
		3744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3745
		3746	warn "... unloading $k";
		3747	delete $INC{$k};
		3748
		3749	$k =~ s/\.pm$//;
		3750	$k =~ s/\//::/g;
		3751
		3752	if (my $cb = $k->can ("unload_module")) {
		3753	$cb->();
		3754	}
		3755
		3756	clear_package $k;
2418	}	3757	}
2419		3758
2420	warn "getting rid of safe::, as good as possible";	3759	warn "getting rid of safe::, as good as possible";
2421	Symbol::delete_package "safe::$_"	3760	clear_package "safe::$_"
2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2423		3762
2424	warn "unloading cf.pm \"a bit\"";	3763	warn "unloading cf.pm \"a bit\"";
2425	delete $INC{"cf.pm"};	3764	delete $INC{"cf.pm"};
		3765	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2426		3766
2427	# don't, removes xs symbols, too,	3767	# don't, removes xs symbols, too,
2428	# and global variables created in xs	3768	# and global variables created in xs
2429	#Symbol::delete_package __PACKAGE__;	3769	#clear_package __PACKAGE__;
2430		3770
2431	warn "unload completed, starting to reload now";	3771	warn "unload completed, starting to reload now";
2432		3772
2433	warn "reloading cf.pm";	3773	warn "reloading cf.pm";
2434	require cf;	3774	require cf;
2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3775	cf::_connect_to_perl_1;
2436		3776
2437	warn "loading config and database again";	3777	warn "loading config and database again";
2438	cf::cfg_load;	3778	cf::reload_config;
2439	cf::db_load;
2440		3779
2441	warn "loading extensions";	3780	warn "loading extensions";
2442	cf::load_extensions;	3781	cf::load_extensions;
2443		3782
		3783	if ($REATTACH_ON_RELOAD) {
2444	warn "reattaching attachments to objects/players";	3784	warn "reattaching attachments to objects/players";
2445	_global_reattach;	3785	_global_reattach; # objects, sockets
2446	warn "reattaching attachments to maps";	3786	warn "reattaching attachments to maps";
2447	reattach $_ for values %MAP;	3787	reattach $_ for values %MAP;
		3788	warn "reattaching attachments to players";
		3789	reattach $_ for values %PLAYER;
		3790	}
2448		3791
2449	warn "restarting server ticker";	3792	warn "running post_init jobs";
		3793	(pop @POST_INIT)->(1) while @POST_INIT;
2450		3794
2451	$TICK_WATCHER->start;	3795	warn "leaving sync_job";
		3796
		3797	1
		3798	} or do {
		3799	warn $@;
		3800	cf::cleanup "error while reloading, exiting.";
		3801	};
		3802
		3803	warn "reloaded";
		3804	--$RELOAD;
		3805	}
		3806
		3807	$t1 = EV::time - $t1;
		3808	warn "reload completed in ${t1}s\n";
		3809	};
		3810
		3811	our $RELOAD_WATCHER; # used only during reload
		3812
		3813	sub reload_perl() {
		3814	# doing reload synchronously and two reloads happen back-to-back,
		3815	# coro crashes during coro_state_free->destroy here.
		3816
		3817	$RELOAD_WATCHER ||= cf::async {
		3818	Coro::AIO::aio_wait cache_extensions;
		3819
		3820	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3821	do_reload_perl;
		3822	undef $RELOAD_WATCHER;
		3823	};
2452	};	3824	};
2453		3825	}
2454	if ($@) {
2455	warn $@;
2456	warn "error while reloading, exiting.";
2457	exit 1;
2458	}
2459
2460	warn "reloaded";
2461	};
2462
2463	our $RELOAD_WATCHER; # used only during reload
2464		3826
2465	register_command "reload" => sub {	3827	register_command "reload" => sub {
2466	my ($who, $arg) = @_;	3828	my ($who, $arg) = @_;
2467		3829
2468	if ($who->flag (FLAG_WIZ)) {	3830	if ($who->flag (FLAG_WIZ)) {
2469	$who->message ("reloading server.");	3831	$who->message ("reloading server.");
2470		3832	async {
2471	# doing reload synchronously and two reloads happen back-to-back,	3833	$Coro::current->{desc} = "perl_reload";
2472	# coro crashes during coro_state_free->destroy here.
2473
2474	$RELOAD_WATCHER ||= Event->timer (
2475	reentrant => 0,
2476	after => 0,
2477	data => WF_AUTOCANCEL,
2478	cb => sub {
2479	reload;	3834	reload_perl;
2480	undef $RELOAD_WATCHER;
2481	},
2482	);	3835	};
2483	}	3836	}
2484	};	3837	};
2485		3838
2486	unshift @INC, $LIBDIR;	3839	unshift @INC, $LIBDIR;
2487		3840
2488	my $bug_warning = 0;	3841	my $bug_warning = 0;
2489		3842
2490	$TICK_WATCHER = Event->timer (	3843	our @WAIT_FOR_TICK;
2491	reentrant => 0,	3844	our @WAIT_FOR_TICK_BEGIN;
2492	parked => 1,	3845
2493	prio => 0,	3846	sub wait_for_tick {
2494	at => $NEXT_TICK || $TICK,	3847	return if tick_inhibit || $Coro::current == $Coro::main;
2495	data => WF_AUTOCANCEL,	3848
2496	cb => sub {	3849	my $signal = new Coro::Signal;
		3850	push @WAIT_FOR_TICK, $signal;
		3851	$signal->wait;
		3852	}
		3853
		3854	sub wait_for_tick_begin {
		3855	return if tick_inhibit || $Coro::current == $Coro::main;
		3856
		3857	my $signal = new Coro::Signal;
		3858	push @WAIT_FOR_TICK_BEGIN, $signal;
		3859	$signal->wait;
		3860	}
		3861
		3862	sub tick {
2497	if ($Coro::current != $Coro::main) {	3863	if ($Coro::current != $Coro::main) {
2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3864	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2499	unless ++$bug_warning > 10;	3865	unless ++$bug_warning > 10;
2500	return;	3866	return;
2501	}	3867	}
2502		3868
2503	$NOW = Event::time;
2504
2505	cf::server_tick; # one server iteration	3869	cf::server_tick; # one server iteration
2506	$RUNTIME += $TICK;
2507	$NEXT_TICK += $TICK;
2508		3870
2509	$WAIT_FOR_TICK->broadcast;	3871	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3872	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2511		3873	Coro::async_pool {
2512	Event::sweep;	3874	$Coro::current->{desc} = "runtime saver";
2513	Coro::cede_notself;
2514
2515	# my $AFTER = Event::time;
2516	# warn $AFTER - $NOW;#d#
2517
2518	# if we are delayed by four ticks or more, skip them all
2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2520
2521	$TICK_WATCHER->at ($NEXT_TICK);
2522	$TICK_WATCHER->start;
2523	},
2524	);
2525
2526	IO::AIO::max_poll_time $TICK * 0.1;
2527
2528	undef $Coro::AIO::WATCHER;
2529	$AIO_POLL_WATCHER = Event->io (
2530	reentrant => 0,
2531	fd => IO::AIO::poll_fileno,
2532	poll => 'r',
2533	prio => 6,
2534	data => WF_AUTOCANCEL,
2535	cb => \&IO::AIO::poll_cb,
2536	);
2537
2538	$WRITE_RUNTIME_WATCHER = Event->timer (
2539	reentrant => 0,
2540	data => WF_AUTOCANCEL,
2541	after => 1,
2542	interval => 10,
2543	prio => 6, # keep it lowest so it acts like a watchdog
2544	cb => Coro::unblock_sub {
2545	write_runtime	3875	write_runtime_sync
2546	or warn "ERROR: unable to write runtime file: $!";	3876	or warn "ERROR: unable to write runtime file: $!";
		3877	};
2547	},	3878	}
2548	);	3879
		3880	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3881	$sig->send;
		3882	}
		3883	while (my $sig = shift @WAIT_FOR_TICK) {
		3884	$sig->send;
		3885	}
		3886
		3887	$LOAD = ($NOW - $TICK_START) / $TICK;
		3888	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3889
		3890	if (0) {
		3891	if ($NEXT_TICK) {
		3892	my $jitter = $TICK_START - $NEXT_TICK;
		3893	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3894	warn "jitter $JITTER\n";#d#
		3895	}
		3896	}
		3897	}
		3898
		3899	{
		3900	# configure BDB
		3901
		3902	BDB::min_parallel 8;
		3903	BDB::max_poll_reqs $TICK * 0.1;
		3904	$AnyEvent::BDB::WATCHER->priority (1);
		3905
		3906	unless ($DB_ENV) {
		3907	$DB_ENV = BDB::db_env_create;
		3908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3909	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3910	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3911	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3912	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3913
		3914	cf::sync_job {
		3915	eval {
		3916	BDB::db_env_open
		3917	$DB_ENV,
		3918	$BDBDIR,
		3919	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3920	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3921	0666;
		3922
		3923	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3924	};
		3925
		3926	cf::cleanup "db_env_open(db): $@" if $@;
		3927	};
		3928	}
		3929
		3930	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3931	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3932	};
		3933	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3934	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3935	};
		3936	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3937	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3938	};
		3939	}
		3940
		3941	{
		3942	# configure IO::AIO
		3943
		3944	IO::AIO::min_parallel 8;
		3945	IO::AIO::max_poll_time $TICK * 0.1;
		3946	undef $AnyEvent::AIO::WATCHER;
		3947	}
		3948
		3949	my $_log_backtrace;
		3950
		3951	sub _log_backtrace {
		3952	my ($msg, @addr) = @_;
		3953
		3954	$msg =~ s/\n//;
		3955
		3956	# limit the # of concurrent backtraces
		3957	if ($_log_backtrace < 2) {
		3958	++$_log_backtrace;
		3959	my $perl_bt = Carp::longmess $msg;
		3960	async {
		3961	$Coro::current->{desc} = "abt $msg";
		3962
		3963	my @bt = fork_call {
		3964	@addr = map { sprintf "%x", $_ } @addr;
		3965	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3966	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3967	or die "addr2line: $!";
		3968
		3969	my @funcs;
		3970	my @res = <$fh>;
		3971	chomp for @res;
		3972	while (@res) {
		3973	my ($func, $line) = splice @res, 0, 2, ();
		3974	push @funcs, "[$func] $line";
		3975	}
		3976
		3977	@funcs
		3978	};
		3979
		3980	LOG llevInfo, "[ABT] $perl_bt\n";
		3981	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3982	LOG llevInfo, "[ABT] $_\n" for @bt;
		3983	--$_log_backtrace;
		3984	};
		3985	} else {
		3986	LOG llevInfo, "[ABT] $msg\n";
		3987	LOG llevInfo, "[ABT] [suppressed]\n";
		3988	}
		3989	}
		3990
		3991	# load additional modules
		3992	require "cf/$_.pm" for @EXTRA_MODULES;
		3993	cf::_connect_to_perl_2;
2549		3994
2550	END { cf::emergency_save }	3995	END { cf::emergency_save }
2551		3996
2552	1	3997	1
2553		3998

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