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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.149 by root, Mon Jan 8 14:11:05 2007 UTC vs.
Revision 1.529 by root, Wed Apr 28 11:28:22 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 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 ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3 ();	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.32 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	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" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		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 $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	139	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	140
56	our %EXT_CORO; # coroutines bound to extensions	141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
57		153
58	binmode STDOUT;	154	binmode STDOUT;
59	binmode STDERR;	155	binmode STDERR;
60		156
61	# read virtual server time, if available	157	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
66	}	162	}
67		163
68	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		165
74	# a special map that is always available	166	mkdir $_
75	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		168
76	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
		170
		171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
77		187
78	#############################################################################	188	#############################################################################
79		189
80	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
81		191
…		…
88	=item $cf::RUNTIME	198	=item $cf::RUNTIME
89		199
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	201	every server tick.
92		202
93	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		206
95	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
97		211
98	=item $cf::NOW	212	=item $cf::NOW
99		213
100	The time of the last (current) server tick.	214	The time of the last (current) server tick.
101		215
102	=item $cf::TICK	216	=item $cf::TICK
103		217
104	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
105		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
106	=item %cf::CFG	230	=item %cf::CFG
107		231
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	233	from wherever your confdir points to.
110		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one process
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
111	=back	253	=back
112		254
113	=cut	255	=cut
114		256
115	BEGIN {	257	$Coro::State::WARNHOOK = sub {
116	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	258	my $msg = join "", @_;
118	utf8::encode $msg;
119		259
120	$msg .= "\n"	260	$msg .= "\n"
121	unless $msg =~ /\n$/;	261	unless $msg =~ /\n$/;
122		262
		263	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		264
123	LOG llevError, $msg;	265	LOG llevError, $msg;
124	};	266	};
125	}	267
		268	$Coro::State::DIEHOOK = sub {
		269	return unless $^S eq 0; # "eq", not "=="
		270
		271	warn Carp::longmess $_[0];
		272
		273	if (in_main) {#d#
		274	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		275	return;#d#
		276	}#d#
		277
		278	# kill coroutine otherwise
		279	Coro::terminate
		280	};
126		281
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	282	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	283	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	284	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	285	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	286	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		287	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	288	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		289
134	# we bless all objects into (empty) derived classes to force a method lookup	290	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	291	# within the Safe compartment.
136	for my $pkg (qw(	292	for my $pkg (qw(
137	cf::global cf::attachable	293	cf::global cf::attachable
138	cf::object cf::object::player	294	cf::object cf::object::player
139	cf::client cf::player	295	cf::client cf::player
140	cf::arch cf::living	296	cf::arch cf::living
		297	cf::map cf::mapspace
141	cf::map cf::party cf::region	298	cf::party cf::region
142	)) {	299	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	300	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	301	}
146		302
147	$Event::DIED = sub {	303	$EV::DIED = sub {
148	warn "error in event callback: @_";	304	Carp::cluck "error in event callback: @_";
149	};	305	};
150		306
151	my %ext_pkg;	307	#############################################################################
152	my @exts;
153	my @hook;
154		308
155	=head2 UTILITY FUNCTIONS	309	=head2 UTILITY FUNCTIONS
156		310
157	=over 4	311	=over 4
158		312
159	=cut	313	=item dumpval $ref
160		314
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	315	=cut
162		316
		317	sub dumpval {
		318	eval {
		319	local $SIG{__DIE__};
		320	my $d;
		321	if (1) {
		322	$d = new Data::Dumper([$_[0]], ["*var"]);
		323	$d->Terse(1);
		324	$d->Indent(2);
		325	$d->Quotekeys(0);
		326	$d->Useqq(1);
		327	#$d->Bless(...);
		328	$d->Seen($_[1]) if @_ > 1;
		329	$d = $d->Dump();
		330	}
		331	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		332	$d
		333	} || "[unable to dump $_[0]: '$@']";
		334	}
		335
163	=item $ref = cf::from_json $json	336	=item $ref = cf::decode_json $json
164		337
165	Converts a JSON string into the corresponding perl data structure.	338	Converts a JSON string into the corresponding perl data structure.
166		339
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	340	=item $json = cf::encode_json $ref
175		341
176	Converts a perl data structure into its JSON representation.	342	Converts a perl data structure into its JSON representation.
177		343
178	=cut	344	=cut
179		345
180	sub to_json($) {	346	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	347
182	JSON::Syck::Dump $_[0]	348	sub encode_json($) { $json_coder->encode ($_[0]) }
		349	sub decode_json($) { $json_coder->decode ($_[0]) }
		350
		351	=item cf::post_init { BLOCK }
		352
		353	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		354	but I<before> the server starts ticking again.
		355
		356	The cdoeblock will have a single boolean argument to indicate whether this
		357	is a reload or not.
		358
		359	=cut
		360
		361	sub post_init(&) {
		362	push @POST_INIT, shift;
183	}	363	}
184		364
185	=item cf::lock_wait $string	365	=item cf::lock_wait $string
186		366
187	Wait until the given lock is available. See cf::lock_acquire.	367	Wait until the given lock is available. See cf::lock_acquire.
188		368
189	=item my $lock = cf::lock_acquire $string	369	=item my $lock = cf::lock_acquire $string
190		370
191	Wait until the given lock is available and then acquires it and returns	371	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	372	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	373	for example when the coroutine gets canceled), the lock is automatically
194	returned.	374	returned.
195		375
		376	Locks are *not* recursive, locking from the same coro twice results in a
		377	deadlocked coro.
		378
196	Lock names should begin with a unique identifier (for example, cf::map::find	379	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	380	uses map_find and cf::map::load uses map_load).
198		381
199	=cut	382	=item $locked = cf::lock_active $string
200		383
201	our %LOCK;	384	Return true if the lock is currently active, i.e. somebody has locked it.
		385
		386	=cut
		387
		388	our $LOCKS = new Coro::SemaphoreSet;
202		389
203	sub lock_wait($) {	390	sub lock_wait($) {
204	my ($key) = @_;	391	$LOCKS->wait ($_[0]);
205
206	# wait for lock, if any
207	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;
210	}
211	}	392	}
212		393
213	sub lock_acquire($) {	394	sub lock_acquire($) {
214	my ($key) = @_;	395	$LOCKS->guard ($_[0])
		396	}
215		397
216	# wait, to be sure we are not locked	398	sub lock_active($) {
217	lock_wait $key;	399	$LOCKS->count ($_[0]) < 1
218
219	$LOCK{$key} = [];
220
221	Coro::guard {
222	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };
224	}
225	}	400	}
226		401
227	sub freeze_mainloop {	402	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	403	tick_inhibit_inc;
229		404
230	my $guard = Coro::guard { $TICK_WATCHER->start };	405	&Guard::guard (\&tick_inhibit_dec);
231	$TICK_WATCHER->stop;	406	}
232	$guard	407
		408	=item cf::periodic $interval, $cb
		409
		410	Like EV::periodic, but randomly selects a starting point so that the actions
		411	get spread over time.
		412
		413	=cut
		414
		415	sub periodic($$) {
		416	my ($interval, $cb) = @_;
		417
		418	my $start = rand List::Util::min 180, $interval;
		419
		420	EV::periodic $start, $interval, 0, $cb
		421	}
		422
		423	=item cf::get_slot $time[, $priority[, $name]]
		424
		425	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		426	This call blocks and returns only when you have at least C<$time> seconds
		427	of cpu time till the next tick. The slot is only valid till the next cede.
		428
		429	The optional C<$name> can be used to identify the job to run. It might be
		430	used for statistical purposes and should identify the same time-class.
		431
		432	Useful for short background jobs.
		433
		434	=cut
		435
		436	our @SLOT_QUEUE;
		437	our $SLOT_QUEUE;
		438	our $SLOT_DECAY = 0.9;
		439
		440	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		441	$SLOT_QUEUE = Coro::async {
		442	$Coro::current->desc ("timeslot manager");
		443
		444	my $signal = new Coro::Signal;
		445	my $busy;
		446
		447	while () {
		448	next_job:
		449
		450	my $avail = cf::till_tick;
		451
		452	for (0 .. $#SLOT_QUEUE) {
		453	if ($SLOT_QUEUE[$_][0] <= $avail) {
		454	$busy = 0;
		455	my $job = splice @SLOT_QUEUE, $_, 1, ();
		456	$job->[2]->send;
		457	Coro::cede;
		458	goto next_job;
		459	} else {
		460	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		461	}
		462	}
		463
		464	if (@SLOT_QUEUE) {
		465	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		466	push @cf::WAIT_FOR_TICK, $signal;
		467	$signal->wait;
		468	} else {
		469	$busy = 0;
		470	Coro::schedule;
		471	}
		472	}
		473	};
		474
		475	sub get_slot($;$$) {
		476	return if tick_inhibit || $Coro::current == $Coro::main;
		477
		478	my ($time, $pri, $name) = @_;
		479
		480	$time = clamp $time, 0.01, $TICK * .6;
		481
		482	my $sig = new Coro::Signal;
		483
		484	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		485	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		486	$SLOT_QUEUE->ready;
		487	$sig->wait;
233	}	488	}
234		489
235	=item cf::async { BLOCK }	490	=item cf::async { BLOCK }
236		491
237	Currently the same as Coro::async_pool, meaning you cannot use	492	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		497
243	BEGIN { *async = \&Coro::async_pool }	498	BEGIN { *async = \&Coro::async_pool }
244		499
245	=item cf::sync_job { BLOCK }	500	=item cf::sync_job { BLOCK }
246		501
247	The design of crossfire+ requires that the main coro ($Coro::main) is	502	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	503	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	504	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		505	acceptable.
250		506
251	If it must be done, put the blocking parts into C<sync_job>. This will run	507	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	508	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	509	server will be frozen during this time, so the block should either finish
254	fast or be very important.	510	fast or be very important.
…		…
257		513
258	sub sync_job(&) {	514	sub sync_job(&) {
259	my ($job) = @_;	515	my ($job) = @_;
260		516
261	if ($Coro::current == $Coro::main) {	517	if ($Coro::current == $Coro::main) {
		518	my $time = AE::time;
		519
262	# this is the main coro, too bad, we have to block	520	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	521	# till the operation succeeds, freezing the server :/
264		522
265	# TODO: use suspend/resume instead	523	LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	524
267	my $freeze_guard = freeze_mainloop;	525	my $freeze_guard = freeze_mainloop;
268		526
269	my $busy = 1;	527	my $busy = 1;
270	my @res;	528	my @res;
271		529
272	(async {	530	(async {
		531	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	532	@res = eval { $job->() };
274	warn $@ if $@;	533	warn $@ if $@;
275	undef $busy;	534	undef $busy;
276	})->prio (Coro::PRIO_MAX);	535	})->prio (Coro::PRIO_MAX);
277		536
278	while ($busy) {	537	while ($busy) {
279	Coro::cede or Event::one_event;	538	if (Coro::nready) {
		539	Coro::cede_notself;
		540	} else {
		541	EV::loop EV::LOOP_ONESHOT;
280	}	542	}
		543	}
		544
		545	my $time = AE::time - $time;
		546
		547	$TICK_START += $time; # do not account sync jobs to server load
281		548
282	wantarray ? @res : $res[0]	549	wantarray ? @res : $res[0]
283	} else {	550	} else {
284	# we are in another coroutine, how wonderful, everything just works	551	# we are in another coroutine, how wonderful, everything just works
285		552
…		…
287	}	554	}
288	}	555	}
289		556
290	=item $coro = cf::async_ext { BLOCK }	557	=item $coro = cf::async_ext { BLOCK }
291		558
292	Like async, but this coro is automcatially being canceled when the	559	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	560	extension calling this is being unloaded.
294		561
295	=cut	562	=cut
296		563
297	sub async_ext(&) {	564	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	572	$EXT_CORO{$coro+0} = $coro;
306		573
307	$coro	574	$coro
308	}	575	}
309		576
310	sub write_runtime {	577	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		578
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	579	Executes the given code block with the given arguments in a seperate
314	or return;	580	process, returning the results. Everything must be serialisable with
		581	Coro::Storable. May, of course, block. Note that the executed sub may
		582	never block itself or use any form of event handling.
315		583
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	584	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		585
320	aio_fsync $fh	586	sub fork_call(&@) {
321	and return;	587	my ($cb, @args) = @_;
322		588
323	close $fh	589	# we seemingly have to make a local copy of the whole thing,
324	or return;	590	# otherwise perl prematurely frees the stuff :/
		591	# TODO: investigate and fix (likely this will be rather laborious)
325		592
326	aio_rename "$runtime~", $runtime	593	my @res = Coro::Util::fork_eval {
327	and return;	594	reset_signals;
		595	&$cb
		596	}, @args;
328		597
		598	wantarray ? @res : $res[-1]
		599	}
		600
		601	sub objinfo {
329	1	602	(
		603	"counter value" => cf::object::object_count,
		604	"objects created" => cf::object::create_count,
		605	"objects destroyed" => cf::object::destroy_count,
		606	"freelist size" => cf::object::free_count,
		607	"allocated objects" => cf::object::objects_size,
		608	"active objects" => cf::object::actives_size,
		609	)
		610	}
		611
		612	=item $coin = coin_from_name $name
		613
		614	=cut
		615
		616	our %coin_alias = (
		617	"silver" => "silvercoin",
		618	"silvercoin" => "silvercoin",
		619	"silvercoins" => "silvercoin",
		620	"gold" => "goldcoin",
		621	"goldcoin" => "goldcoin",
		622	"goldcoins" => "goldcoin",
		623	"platinum" => "platinacoin",
		624	"platinumcoin" => "platinacoin",
		625	"platinumcoins" => "platinacoin",
		626	"platina" => "platinacoin",
		627	"platinacoin" => "platinacoin",
		628	"platinacoins" => "platinacoin",
		629	"royalty" => "royalty",
		630	"royalties" => "royalty",
		631	);
		632
		633	sub coin_from_name($) {
		634	$coin_alias{$_[0]}
		635	? cf::arch::find $coin_alias{$_[0]}
		636	: undef
		637	}
		638
		639	=item $value = cf::db_get $family => $key
		640
		641	Returns a single value from the environment database.
		642
		643	=item cf::db_put $family => $key => $value
		644
		645	Stores the given C<$value> in the family. It can currently store binary
		646	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		647
		648	=item $db = cf::db_table "name"
		649
		650	Create and/or open a new database table. The string must not be "db" and must be unique
		651	within each server.
		652
		653	=cut
		654
		655	sub db_table($) {
		656	my ($name) = @_;
		657	my $db = BDB::db_create $DB_ENV;
		658
		659	eval {
		660	$db->set_flags (BDB::CHKSUM);
		661
		662	utf8::encode $name;
		663	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		664	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		665	cf::cleanup "db_open(db): $!" if $!;
		666	};
		667	cf::cleanup "db_open(db): $@" if $@;
		668
		669	$db
		670	}
		671
		672	our $DB;
		673
		674	sub db_init {
		675	cf::sync_job {
		676	$DB ||= db_table "db";
		677	};
		678	}
		679
		680	sub db_get($$) {
		681	my $key = "$_[0]/$_[1]";
		682
		683	cf::sync_job {
		684	BDB::db_get $DB, undef, $key, my $data;
		685
		686	$! ? ()
		687	: $data
		688	}
		689	}
		690
		691	sub db_put($$$) {
		692	BDB::dbreq_pri 4;
		693	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		694	}
		695
		696	=item cf::cache $id => [$paths...], $processversion => $process
		697
		698	Generic caching function that returns the value of the resource $id,
		699	caching and regenerating as required.
		700
		701	This function can block.
		702
		703	=cut
		704
		705	sub cache {
		706	my ($id, $src, $processversion, $process) = @_;
		707
		708	my $meta =
		709	join "\x00",
		710	$processversion,
		711	map {
		712	aio_stat $_
		713	and Carp::croak "$_: $!";
		714
		715	($_, (stat _)[7,9])
		716	} @$src;
		717
		718	my $dbmeta = db_get cache => "$id/meta";
		719	if ($dbmeta ne $meta) {
		720	# changed, we may need to process
		721
		722	my @data;
		723	my $md5;
		724
		725	for (0 .. $#$src) {
		726	0 <= aio_load $src->[$_], $data[$_]
		727	or Carp::croak "$src->[$_]: $!";
		728	}
		729
		730	# if processing is expensive, check
		731	# checksum first
		732	if (1) {
		733	$md5 =
		734	join "\x00",
		735	$processversion,
		736	map {
		737	cf::cede_to_tick;
		738	($src->[$_], Digest::MD5::md5_hex $data[$_])
		739	} 0.. $#$src;
		740
		741
		742	my $dbmd5 = db_get cache => "$id/md5";
		743	if ($dbmd5 eq $md5) {
		744	db_put cache => "$id/meta", $meta;
		745
		746	return db_get cache => "$id/data";
		747	}
		748	}
		749
		750	my $t1 = Time::HiRes::time;
		751	my $data = $process->(\@data);
		752	my $t2 = Time::HiRes::time;
		753
		754	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		755
		756	db_put cache => "$id/data", $data;
		757	db_put cache => "$id/md5" , $md5;
		758	db_put cache => "$id/meta", $meta;
		759
		760	return $data;
		761	}
		762
		763	db_get cache => "$id/data"
		764	}
		765
		766	=item cf::datalog type => key => value, ...
		767
		768	Log a datalog packet of the given type with the given key-value pairs.
		769
		770	=cut
		771
		772	sub datalog($@) {
		773	my ($type, %kv) = @_;
		774	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	775	}
331		776
332	=back	777	=back
333		778
334	=cut	779	=cut
335		780
336	#############################################################################	781	#############################################################################
337		782
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	783	=head2 ATTACHABLE OBJECTS
459		784
460	Many objects in crossfire are so-called attachable objects. That means you can	785	Many objects in deliantra are so-called attachable objects. That means you can
461	attach callbacks/event handlers (a collection of which is called an "attachment")	786	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	787	to it. All such attachable objects support the following methods.
463		788
464	In the following description, CLASS can be any of C<global>, C<object>	789	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	790	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	791	Deliantra).
467		792
468	=over 4	793	=over 4
469		794
470	=item $attachable->attach ($attachment, key => $value...)	795	=item $attachable->attach ($attachment, key => $value...)
471		796
…		…
515	=item cf::CLASS::attachment $name, ...	840	=item cf::CLASS::attachment $name, ...
516		841
517	Register an attachment by C<$name> through which attachable objects of the	842	Register an attachment by C<$name> through which attachable objects of the
518	given CLASS can refer to this attachment.	843	given CLASS can refer to this attachment.
519		844
520	Some classes such as crossfire maps and objects can specify attachments	845	Some classes such as deliantra maps and objects can specify attachments
521	that are attached at load/instantiate time, thus the need for a name.	846	that are attached at load/instantiate time, thus the need for a name.
522		847
523	These calls expect any number of the following handler/hook descriptions:	848	These calls expect any number of the following handler/hook descriptions:
524		849
525	=over 4	850	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	910	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	911	our @CB_MAP = ();
587		912
588	my %attachment;	913	my %attachment;
589		914
		915	sub cf::attachable::thawer_merge {
		916	# simply override everything except _meta
		917	local $_[0]{_meta};
		918	%{$_[0]} = %{$_[1]};
		919	}
		920
590	sub _attach_cb($$$$) {	921	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	922	my ($registry, $event, $prio, $cb) = @_;
592		923
593	use sort 'stable';	924	use sort 'stable';
594		925
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	959	$registry = $CB_TYPE[$object_type] ||= [];
629		960
630	} elsif ($type eq "subtype") {	961	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	962	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	963	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	964	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		965
635	} elsif ($type eq "package") {	966	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	967	my $pkg = shift @arg;
637		968
638	while (my ($name, $id) = each %cb_id) {	969	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	998	_attach $registry, $klass, @attach;
668	}	999	}
669		1000
670	$obj->{$name} = \%arg;	1001	$obj->{$name} = \%arg;
671	} else {	1002	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	1003	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	1004	}
674		1005
675	$obj->{_attachment}{$name} = undef;	1006	$obj->{_attachment}{$name} = undef;
676	}	1007	}
677		1008
…		…
679	if (ref $_[0]) {	1010	if (ref $_[0]) {
680	_object_attach @_;	1011	_object_attach @_;
681	} else {	1012	} else {
682	_attach shift->_attach_registry, @_;	1013	_attach shift->_attach_registry, @_;
683	}	1014	}
		1015	_recalc_want;
684	};	1016	};
685		1017
686	# all those should be optimised	1018	# all those should be optimised
687	sub cf::attachable::detach {	1019	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	1020	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	1023	delete $obj->{_attachment}{$name};
692	reattach ($obj);	1024	reattach ($obj);
693	} else {	1025	} else {
694	Carp::croak "cannot, currently, detach class attachments";	1026	Carp::croak "cannot, currently, detach class attachments";
695	}	1027	}
		1028	_recalc_want;
696	};	1029	};
697		1030
698	sub cf::attachable::attached {	1031	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	1032	my ($obj, $name) = @_;
700		1033
…		…
715	";	1048	";
716	die if $@;	1049	die if $@;
717	}	1050	}
718		1051
719	our $override;	1052	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1053	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1054
722	sub override {	1055	sub override {
723	$override = 1;	1056	$override = 1;
724	@invoke_results = ();	1057	@INVOKE_RESULTS = (@_);
725	}	1058	}
726		1059
727	sub do_invoke {	1060	sub do_invoke {
728	my $event = shift;	1061	my $event = shift;
729	my $callbacks = shift;	1062	my $callbacks = shift;
730		1063
731	@invoke_results = ();	1064	@INVOKE_RESULTS = ();
732		1065
733	local $override;	1066	local $override;
734		1067
735	for (@$callbacks) {	1068	for (@$callbacks) {
736	eval { &{$_->[1]} };	1069	eval { &{$_->[1]} };
…		…
745	}	1078	}
746		1079
747	0	1080	0
748	}	1081	}
749		1082
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1083	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1084
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1085	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1086
754	Generate an object-specific event with the given arguments.	1087	Generate an object-specific event with the given arguments.
755		1088
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1089	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1090	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1091	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1092
760	=back	1093	=back
761		1094
762	=cut	1095	=cut
763		1096
764	#############################################################################	1097	#############################################################################
765	# object support	1098	# object support
		1099
		1100	sub _object_equal($$);
		1101	sub _object_equal($$) {
		1102	my ($a, $b) = @_;
		1103
		1104	return 0 unless (ref $a) eq (ref $b);
		1105
		1106	if ("HASH" eq ref $a) {
		1107	my @ka = keys %$a;
		1108	my @kb = keys %$b;
		1109
		1110	return 0 if @ka != @kb;
		1111
		1112	for (0 .. $#ka) {
		1113	return 0 unless $ka[$_] eq $kb[$_];
		1114	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1115	}
		1116
		1117	} elsif ("ARRAY" eq ref $a) {
		1118
		1119	return 0 if @$a != @$b;
		1120
		1121	for (0 .. $#$a) {
		1122	return 0 unless _object_equal $a->[$_], $b->[$_];
		1123	}
		1124
		1125	} elsif ($a ne $b) {
		1126	return 0;
		1127	}
		1128
		1129	1
		1130	}
		1131
		1132	our $SLOW_MERGES;#d#
		1133	sub _can_merge {
		1134	my ($ob1, $ob2) = @_;
		1135
		1136	++$SLOW_MERGES;#d#
		1137
		1138	# we do the slow way here
		1139	return _object_equal $ob1, $ob2
		1140	}
766		1141
767	sub reattach {	1142	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1143	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1144	my ($obj) = @_;
		1145
		1146	# no longer needed after getting rid of delete_package?
		1147	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1148
771	my $registry = $obj->registry;	1149	my $registry = $obj->registry;
772		1150
773	@$registry = ();	1151	@$registry = ();
774		1152
…		…
789	cf::attachable->attach (	1167	cf::attachable->attach (
790	prio => -1000000,	1168	prio => -1000000,
791	on_instantiate => sub {	1169	on_instantiate => sub {
792	my ($obj, $data) = @_;	1170	my ($obj, $data) = @_;
793		1171
794	$data = from_json $data;	1172	$data = decode_json $data;
795		1173
796	for (@$data) {	1174	for (@$data) {
797	my ($name, $args) = @$_;	1175	my ($name, $args) = @$_;
798		1176
799	$obj->attach ($name, %{$args || {} });	1177	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1193	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1194	my ($filename, $rdata, $objs) = @_;
817		1195
818	sync_job {	1196	sync_job {
819	if (length $$rdata) {	1197	if (length $$rdata) {
		1198	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1199	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1200	$decname, length $$rdata, scalar @$objs
		1201	if $VERBOSE_IO;
822		1202
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1203	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1204	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1205	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1206	if ($cf::USE_FSYNC) {
		1207	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;
826	aio_fsync $fh;	1208	aio_fsync $fh;
		1209	}
827	close $fh;	1210	aio_close $fh;
828		1211
829	if (@$objs) {	1212	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1213	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1214	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1215	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1216	aio_write $fh, 0, (length $data), $data, 0;
		1217	if ($cf::USE_FSYNC) {
		1218	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;
834	aio_fsync $fh;	1219	aio_fsync $fh;
		1220	}
835	close $fh;	1221	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1222	aio_rename "$filename.pst~", "$filename.pst";
837	}	1223	}
838	} else {	1224	} else {
839	aio_unlink "$filename.pst";	1225	aio_unlink "$filename.pst";
840	}	1226	}
841		1227
842	aio_rename "$filename~", $filename;	1228	aio_rename "$filename~", $filename;
		1229
		1230	$filename =~ s%/[^/]+$%%;
		1231	aio_pathsync $filename if $cf::USE_FSYNC;
843	} else {	1232	} else {
844	warn "FATAL: $filename~: $!\n";	1233	warn "unable to save objects: $filename~: $!\n";
845	}	1234	}
846	} else {	1235	} else {
847	aio_unlink $filename;	1236	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
849	}	1238	}
850	}	1239	};
851	}	1240	}
852		1241
853	sub object_freezer_as_string {	1242	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1243	my ($rdata, $objs) = @_;
855		1244
…		…
867	or return;	1256	or return;
868		1257
869	unless (aio_stat "$filename.pst") {	1258	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1259	(aio_load "$filename.pst", $av) >= 0
871	or return;	1260	or return;
		1261
872	$av = eval { (Storable::thaw $av)->{objs} };	1262	my $st = eval { Coro::Storable::thaw $av };
		1263	$av = $st->{objs};
873	}	1264	}
874		1265
		1266	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1267	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1268	$decname, length $data, scalar @{$av || []}
		1269	if $VERBOSE_IO;
		1270
877	return ($data, $av);	1271	($data, $av)
878	}	1272	}
		1273
		1274	=head2 COMMAND CALLBACKS
		1275
		1276	=over 4
		1277
		1278	=cut
879		1279
880	#############################################################################	1280	#############################################################################
881	# command handling &c	1281	# command handling &c
882		1282
883	=item cf::register_command $name => \&callback($ob,$args);	1283	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1296	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1297	}
898		1298
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1299	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1300
901	Register a callbackf ro execution when the client sends an extcmd packet.	1301	Register a callback for execution when the client sends an (synchronous)
		1302	extcmd packet. Ext commands will be processed in the order they are
		1303	received by the server, like other user commands. The first argument is
		1304	the logged-in player. Ext commands can only be processed after a player
		1305	has logged in successfully.
902		1306
903	If the callback returns something, it is sent back as if reply was being	1307	If the callback returns something, it is sent back as if reply was being
904	called.	1308	called.
905		1309
		1310	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1311
		1312	Register a callback for execution when the client sends an (asynchronous)
		1313	exticmd packet. Exti commands are processed by the server as soon as they
		1314	are received, i.e. out of order w.r.t. other commands. The first argument
		1315	is a client socket. Exti commands can be received anytime, even before
		1316	log-in.
		1317
		1318	If the callback returns something, it is sent back as if reply was being
		1319	called.
		1320
906	=cut	1321	=cut
907		1322
908	sub register_extcmd {	1323	sub register_extcmd {
909	my ($name, $cb) = @_;	1324	my ($name, $cb) = @_;
910		1325
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1326	$EXTCMD{$name} = $cb;
915	}	1327	}
		1328
		1329	sub register_exticmd {
		1330	my ($name, $cb) = @_;
		1331
		1332	$EXTICMD{$name} = $cb;
		1333	}
		1334
		1335	use File::Glob ();
916		1336
917	cf::player->attach (	1337	cf::player->attach (
918	on_command => sub {	1338	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1339	my ($pl, $name, $params) = @_;
920		1340
921	my $cb = $COMMAND{$name}	1341	my $cb = $COMMAND{$name}
922	or return;	1342	or return;
923		1343
…		…
928	cf::override;	1348	cf::override;
929	},	1349	},
930	on_extcmd => sub {	1350	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1351	my ($pl, $buf) = @_;
932		1352
933	my $msg = eval { from_json $buf };	1353	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1354
935	if (ref $msg) {	1355	if (ref $msg) {
		1356	my ($type, $reply, @payload) =
		1357	"ARRAY" eq ref $msg
		1358	? @$msg
		1359	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1360
		1361	my @reply;
		1362
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1363	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1364	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1365	}
		1366
		1367	$pl->ext_reply ($reply, @reply)
		1368	if $reply;
		1369
941	} else {	1370	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1371	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1372	}
944		1373
945	cf::override;	1374	cf::override;
946	},	1375	},
947	);	1376	);
948		1377
949	sub register {	1378	# "readahead" all extensions
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	1379	sub cache_extensions {
956	my ($path) = @_;	1380	my $grp = IO::AIO::aio_group;
957		1381
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1382	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
959	my $base = $1;	1383	for (grep /\.ext$/, @{$_[0]}) {
960	my $pkg = $1;	1384	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}	1385	}
1008	}	1386	};
1009		1387
1010	# remove extcmds	1388	$grp
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	1389	}
1024		1390
1025	sub load_extensions {	1391	sub load_extensions {
		1392	cf::sync_job {
		1393	my %todo;
		1394
1026	for my $ext (<$LIBDIR/*.ext>) {	1395	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1396	next unless -r $path;
1028	eval {	1397
1029	load_extension $ext;	1398	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1399	my $base = $1;
		1400	my $pkg = $1;
		1401	$pkg =~ s/[^[:word:]]/_/g;
		1402	$pkg = "ext::$pkg";
		1403
		1404	open my $fh, "<:utf8", $path
		1405	or die "$path: $!";
		1406
		1407	my $source = do { local $/; <$fh> };
		1408
		1409	my %ext = (
		1410	path => $path,
		1411	base => $base,
		1412	pkg => $pkg,
		1413	);
		1414
		1415	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1416	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1417
		1418	$ext{source} =
		1419	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1420	. "#line 1 \"$path\"\n{\n"
		1421	. $source
		1422	. "\n};\n1";
		1423
		1424	$todo{$base} = \%ext;
		1425	}
		1426
		1427	my $pass = 0;
		1428	my %done;
		1429	while (%todo) {
		1430	my $progress;
		1431
		1432	++$pass;
		1433
		1434	ext:
		1435	while (my ($k, $v) = each %todo) {
		1436	for (split /,\s*/, $v->{meta}{depends}) {
		1437	next ext
		1438	unless exists $done{$_};
		1439	}
		1440
		1441	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1442
		1443	my $active = eval $v->{source};
		1444
		1445	if (length $@) {
		1446	warn "$v->{path}: $@\n";
		1447
		1448	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1449	if exists $v->{meta}{mandatory};
		1450
		1451	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1452	delete $todo{$k};
		1453	} else {
		1454	$done{$k} = delete $todo{$k};
		1455	push @EXTS, $v->{pkg};
		1456	$progress = 1;
		1457
		1458	warn "$v->{base}: extension inactive.\n"
		1459	unless $active;
		1460	}
1030	1	1461	}
1031	} or warn "$ext not loaded: $@";	1462
		1463	unless ($progress) {
		1464	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1465
		1466	while (my ($k, $v) = each %todo) {
		1467	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1468	if exists $v->{meta}{mandatory};
		1469	}
		1470	}
		1471	}
1032	}	1472	};
1033	}	1473	}
1034		1474
1035	#############################################################################	1475	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1476
1038	*cf::mapsupport::on_clean = sub {	1477	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1478
1073	=head2 CORE EXTENSIONS	1479	=head2 CORE EXTENSIONS
1074		1480
1075	Functions and methods that extend core crossfire objects.	1481	Functions and methods that extend core deliantra objects.
1076		1482
1077	=cut	1483	=cut
1078		1484
1079	package cf::player;	1485	package cf::player;
1080		1486
		1487	use Coro::AIO;
		1488
1081	=head3 cf::player	1489	=head3 cf::player
1082		1490
1083	=over 4	1491	=over 4
1084		1492
		1493	=item cf::player::num_playing
		1494
		1495	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1496
		1497	=cut
		1498
		1499	sub num_playing {
		1500	scalar grep
		1501	$_->ob->map
		1502	&& !$_->hidden
		1503	&& !$_->ob->flag (cf::FLAG_WIZ),
		1504	cf::player::list
		1505	}
		1506
1085	=item cf::player::find $login	1507	=item cf::player::find $login
1086		1508
1087	Returns the given player object, loading it if necessary (might block).	1509	Returns the given player object, loading it if necessary (might block).
1088		1510
1089	=cut	1511	=cut
1090		1512
1091	sub playerdir($) {	1513	sub playerdir($) {
1092	cf::localdir	1514	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1515	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1516	}
1098		1517
1099	sub path($) {	1518	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1519	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1520
1102	(playerdir $login) . "/$login.pl"	1521	(playerdir $login) . "/playerdata"
1103	}	1522	}
1104		1523
1105	sub find_active($) {	1524	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1525	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1526	and $cf::PLAYER{$_[0]}->active
…		…
1110		1529
1111	sub exists($) {	1530	sub exists($) {
1112	my ($login) = @_;	1531	my ($login) = @_;
1113		1532
1114	$cf::PLAYER{$login}	1533	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1534	or !aio_stat path $login
1116	}	1535	}
1117		1536
1118	sub find($) {	1537	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1538	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1539	my $login = $_[0];
1121		1540
1122	my $guard = cf::lock_acquire "user_find:$login";	1541	my $guard = cf::lock_acquire "user_find:$login";
1123		1542
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1543	$cf::PLAYER{$_[0]} || do {
		1544	# rename old playerfiles to new ones
		1545	#TODO: remove when no longer required
		1546	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1547	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1548	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1549	aio_unlink +(playerdir $login) . "/$login.pl";
		1550
		1551	my $f = new_from_file cf::object::thawer path $login
		1552	or return;
		1553
		1554	my $pl = cf::player::load_pl $f
		1555	or return;
		1556
		1557	local $cf::PLAYER_LOADING{$login} = $pl;
		1558	$f->resolve_delayed_derefs;
		1559	$cf::PLAYER{$login} = $pl
		1560	}
1125	};	1561	}
1126	}	1562	}
		1563
		1564	cf::player->attach (
		1565	on_load => sub {
		1566	my ($pl, $path) = @_;
		1567
		1568	# restore slots saved in save, below
		1569	my $slots = delete $pl->{_slots};
		1570
		1571	$pl->ob->current_weapon ($slots->[0]);
		1572	$pl->combat_ob ($slots->[1]);
		1573	$pl->ranged_ob ($slots->[2]);
		1574	},
		1575	);
1127		1576
1128	sub save($) {	1577	sub save($) {
1129	my ($pl) = @_;	1578	my ($pl) = @_;
1130		1579
1131	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
…		…
1133	my $path = path $pl;	1582	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1583	my $guard = cf::lock_acquire "user_save:$path";
1135		1584
1136	return if $pl->{deny_save};	1585	return if $pl->{deny_save};
1137		1586
1138	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1587	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1588	$pl->{last_save} = $cf::RUNTIME;
1140		1589
		1590	cf::get_slot 0.01;
		1591
		1592	# save slots, to be restored later
		1593	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1594
1141	$pl->save_pl ($path);	1595	$pl->save_pl ($path);
1142	Coro::cede;	1596	cf::cede_to_tick;
1143	}	1597	}
1144		1598
1145	sub new($) {	1599	sub new($) {
1146	my ($login) = @_;	1600	my ($login) = @_;
1147		1601
…		…
1153	$cf::PLAYER{$login} = $self;	1607	$cf::PLAYER{$login} = $self;
1154		1608
1155	$self	1609	$self
1156	}	1610	}
1157		1611
		1612	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1613
		1614	=cut
		1615
		1616	sub send_msg {
		1617	my $ns = shift->ns
		1618	or return;
		1619	$ns->send_msg (@_);
		1620	}
		1621
		1622	=item $pl->quit_character
		1623
		1624	Nukes the player without looking back. If logged in, the connection will
		1625	be destroyed. May block for a long time.
		1626
		1627	=cut
		1628
1158	sub quit_character {	1629	sub quit_character {
1159	my ($pl) = @_;	1630	my ($pl) = @_;
1160		1631
		1632	my $name = $pl->ob->name;
		1633
1161	$pl->{deny_save} = 1;	1634	$pl->{deny_save} = 1;
1162	$pl->password ("*"); # this should lock out the player until we nuked the dir	1635	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1163		1636
1164	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1637	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1165	$pl->deactivate;	1638	$pl->deactivate;
		1639	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1166	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1640	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1167	$pl->ns->destroy if $pl->ns;	1641	$pl->ns->destroy if $pl->ns;
1168		1642
1169	my $path = playerdir $pl;	1643	my $path = playerdir $pl;
1170	my $temp = "$path~$cf::RUNTIME~deleting~";	1644	my $temp = "$path~$cf::RUNTIME~deleting~";
1171	IO::AIO::aio_rename $path, $temp, sub {	1645	aio_rename $path, $temp;
1172	delete $cf::PLAYER{$pl->ob->name};	1646	delete $cf::PLAYER{$pl->ob->name};
1173	$pl->destroy;	1647	$pl->destroy;
1174		1648
		1649	my $prefix = qr<^~\Q$name\E/>;
		1650
		1651	# nuke player maps
		1652	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1653
1175	IO::AIO::aio_rmtree $temp;	1654	IO::AIO::aio_rmtree $temp;
		1655	}
		1656
		1657	=item $pl->kick
		1658
		1659	Kicks a player out of the game. This destroys the connection.
		1660
		1661	=cut
		1662
		1663	sub kick {
		1664	my ($pl, $kicker) = @_;
		1665
		1666	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1667	$pl->killer ("kicked");
		1668	$pl->ns->destroy;
		1669	}
		1670
		1671	=item cf::player::list_logins
		1672
		1673	Returns am arrayref of all valid playernames in the system, can take a
		1674	while and may block, so not sync_job-capable, ever.
		1675
		1676	=cut
		1677
		1678	sub list_logins {
		1679	my $dirs = aio_readdir $PLAYERDIR
		1680	or return [];
		1681
		1682	my @logins;
		1683
		1684	for my $login (@$dirs) {
		1685	my $path = path $login;
		1686
		1687	# a .pst is a dead give-away for a valid player
		1688	# if no pst file found, open and chekc for blocked users
		1689	if (aio_stat "$path.pst") {
		1690	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1691	aio_read $fh, 0, 512, my $buf, 0 or next;
		1692	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1693	}
		1694
		1695	utf8::decode $login;
		1696	push @logins, $login;
1176	};	1697	}
1177	}
1178		1698
		1699	\@logins
		1700	}
		1701
		1702	=item $player->maps
		1703
		1704	=item cf::player::maps $login
		1705
		1706	Returns an arrayref of map paths that are private for this
		1707	player. May block.
		1708
		1709	=cut
		1710
		1711	sub maps($) {
		1712	my ($pl) = @_;
		1713
		1714	$pl = ref $pl ? $pl->ob->name : $pl;
		1715
		1716	my $files = aio_readdir playerdir $pl
		1717	or return;
		1718
		1719	my @paths;
		1720
		1721	for (@$files) {
		1722	utf8::decode $_;
		1723	next if /\.(?:pl|pst)$/;
		1724	next unless /^$PATH_SEP/o;
		1725
		1726	push @paths, cf::map::normalise "~$pl/$_";
		1727	}
		1728
		1729	\@paths
		1730	}
		1731
		1732	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1733
		1734	Expand deliantra pod fragments into protocol xml.
		1735
1179	=item $player->ext_reply ($msgid, $msgtype, %msg)	1736	=item $player->ext_reply ($msgid, @msg)
1180		1737
1181	Sends an ext reply to the player.	1738	Sends an ext reply to the player.
1182		1739
1183	=cut	1740	=cut
1184		1741
1185	sub ext_reply($$$%) {	1742	sub ext_reply($$@) {
1186	my ($self, $id, %msg) = @_;	1743	my ($self, $id, @msg) = @_;
1187		1744
1188	$msg{msgid} = $id;	1745	$self->ns->ext_reply ($id, @msg)
1189
1190	$self->send ("ext " . cf::to_json \%msg);
1191	}	1746	}
1192		1747
1193	package cf;	1748	=item $player->ext_msg ($type, @msg)
		1749
		1750	Sends an ext event to the client.
		1751
		1752	=cut
		1753
		1754	sub ext_msg($$@) {
		1755	my ($self, $type, @msg) = @_;
		1756
		1757	$self->ns->ext_msg ($type, @msg);
		1758	}
		1759
		1760	=head3 cf::region
		1761
		1762	=over 4
		1763
		1764	=cut
		1765
		1766	package cf::region;
		1767
		1768	=item cf::region::find_by_path $path
		1769
		1770	Tries to decuce the likely region for a map knowing only its path.
		1771
		1772	=cut
		1773
		1774	sub find_by_path($) {
		1775	my ($path) = @_;
		1776
		1777	$path =~ s/^~[^\/]*//; # skip ~login
		1778
		1779	my ($match, $specificity);
		1780
		1781	for my $region (list) {
		1782	if ($region->{match} && $path =~ $region->{match}) {
		1783	($match, $specificity) = ($region, $region->specificity)
		1784	if $region->specificity > $specificity;
		1785	}
		1786	}
		1787
		1788	$match
		1789	}
1194		1790
1195	=back	1791	=back
1196
1197		1792
1198	=head3 cf::map	1793	=head3 cf::map
1199		1794
1200	=over 4	1795	=over 4
1201		1796
…		…
1204	package cf::map;	1799	package cf::map;
1205		1800
1206	use Fcntl;	1801	use Fcntl;
1207	use Coro::AIO;	1802	use Coro::AIO;
1208		1803
		1804	use overload
		1805	'""' => \&as_string,
		1806	fallback => 1;
		1807
1209	our $MAX_RESET = 3600;	1808	our $MAX_RESET = 3600;
1210	our $DEFAULT_RESET = 3000;	1809	our $DEFAULT_RESET = 3000;
1211		1810
1212	sub generate_random_map {	1811	sub generate_random_map {
1213	my ($path, $rmp) = @_;	1812	my ($self, $rmp) = @_;
		1813
		1814	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1214		1815
1215	# mit "rum" bekleckern, nicht	1816	# mit "rum" bekleckern, nicht
1216	cf::map::_create_random_map	1817	$self->_create_random_map (
1217	$path,
1218	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1818	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1219	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1819	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1220	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1820	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1221	$rmp->{exit_on_final_map},	1821	$rmp->{exit_on_final_map},
1222	$rmp->{xsize}, $rmp->{ysize},	1822	$rmp->{xsize}, $rmp->{ysize},
1223	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1823	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1224	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1824	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1225	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1825	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1226	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1826	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1227	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1827	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1228	(cf::region::find $rmp->{region})	1828	(cf::region::find $rmp->{region}), $rmp->{custom}
		1829	)
1229	}	1830	}
1230		1831
1231	# and all this just because we cannot iterate over	1832	=item cf::map->register ($regex, $prio)
1232	# all maps in C++...
1233	sub change_all_map_light {
1234	my ($change) = @_;
1235		1833
1236	$_->change_map_light ($change)	1834	Register a handler for the map path matching the given regex at the
1237	for grep $_->outdoor, values %cf::MAP;	1835	givne priority (higher is better, built-in handlers have priority 0, the
1238	}	1836	default).
1239		1837
1240	sub try_load_header($) {	1838	=cut
		1839
		1840	sub register {
		1841	my (undef, $regex, $prio) = @_;
		1842	my $pkg = caller;
		1843
		1844	no strict;
		1845	push @{"$pkg\::ISA"}, __PACKAGE__;
		1846
		1847	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1848	}
		1849
		1850	# also paths starting with '/'
		1851	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1852
		1853	sub thawer_merge {
		1854	my ($self, $merge) = @_;
		1855
		1856	# we have to keep some variables in memory intact
		1857	local $self->{path};
		1858	local $self->{load_path};
		1859
		1860	$self->SUPER::thawer_merge ($merge);
		1861	}
		1862
		1863	sub normalise {
1241	my ($path) = @_;	1864	my ($path, $base) = @_;
		1865
		1866	$path = "$path"; # make sure its a string
		1867
		1868	$path =~ s/\.map$//;
		1869
		1870	# map plan:
		1871	#
		1872	# /! non-realised random map exit (special hack!)
		1873	# {... are special paths that are not being touched
		1874	# ?xxx/... are special absolute paths
		1875	# ?random/... random maps
		1876	# /... normal maps
		1877	# ~user/... per-player map of a specific user
		1878
		1879	$path =~ s/$PATH_SEP/\//go;
		1880
		1881	# treat it as relative path if it starts with
		1882	# something that looks reasonable
		1883	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1884	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1885
		1886	$base =~ s{[^/]+/?$}{};
		1887	$path = "$base/$path";
		1888	}
		1889
		1890	for ($path) {
		1891	redo if s{//}{/};
		1892	redo if s{/\.?/}{/};
		1893	redo if s{/[^/]+/\.\./}{/};
		1894	}
		1895
		1896	$path
		1897	}
		1898
		1899	sub new_from_path {
		1900	my (undef, $path, $base) = @_;
		1901
		1902	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1903
		1904	$path = normalise $path, $base;
		1905
		1906	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1907	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1908	my $self = bless cf::map::new, $pkg;
		1909	$self->{path} = $path; $self->path ($path);
		1910	$self->init; # pass $1 etc.
		1911	return $self;
		1912	}
		1913	}
		1914
		1915	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1916	()
		1917	}
		1918
		1919	sub init {
		1920	my ($self) = @_;
		1921
		1922	$self
		1923	}
		1924
		1925	sub as_string {
		1926	my ($self) = @_;
		1927
		1928	"$self->{path}"
		1929	}
		1930
		1931	# the displayed name, this is a one way mapping
		1932	sub visible_name {
		1933	&as_string
		1934	}
		1935
		1936	# the original (read-only) location
		1937	sub load_path {
		1938	my ($self) = @_;
		1939
		1940	"$MAPDIR/$self->{path}.map"
		1941	}
		1942
		1943	# the temporary/swap location
		1944	sub save_path {
		1945	my ($self) = @_;
		1946
		1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1948	"$TMPDIR/$path.map"
		1949	}
		1950
		1951	# the unique path, undef == no special unique path
		1952	sub uniq_path {
		1953	my ($self) = @_;
		1954
		1955	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1956	"$UNIQUEDIR/$path"
		1957	}
		1958
		1959	sub decay_objects {
		1960	my ($self) = @_;
		1961
		1962	return if $self->{deny_reset};
		1963
		1964	$self->do_decay_objects;
		1965	}
		1966
		1967	sub unlink_save {
		1968	my ($self) = @_;
		1969
		1970	utf8::encode (my $save = $self->save_path);
		1971	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1972	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1973	}
		1974
		1975	sub load_header_from($) {
		1976	my ($self, $path) = @_;
1242		1977
1243	utf8::encode $path;	1978	utf8::encode $path;
1244	aio_open $path, O_RDONLY, 0	1979	my $f = new_from_file cf::object::thawer $path
1245	or return;	1980	or return;
1246		1981
1247	my $map = cf::map::new	1982	$self->_load_header ($f)
1248	or return;	1983	or return;
1249		1984
1250	# for better error messages only, will be overwritten	1985	local $MAP_LOADING{$self->{path}} = $self;
1251	$map->path ($path);	1986	$f->resolve_delayed_derefs;
1252		1987
1253	$map->load_header ($path)	1988	$self->{load_path} = $path;
		1989
		1990	1
		1991	}
		1992
		1993	sub load_header_orig {
		1994	my ($self) = @_;
		1995
		1996	$self->load_header_from ($self->load_path)
		1997	}
		1998
		1999	sub load_header_temp {
		2000	my ($self) = @_;
		2001
		2002	$self->load_header_from ($self->save_path)
		2003	}
		2004
		2005	sub prepare_temp {
		2006	my ($self) = @_;
		2007
		2008	$self->last_access ((delete $self->{last_access})
		2009	|| $cf::RUNTIME); #d#
		2010	# safety
		2011	$self->{instantiate_time} = $cf::RUNTIME
		2012	if $self->{instantiate_time} > $cf::RUNTIME;
		2013	}
		2014
		2015	sub prepare_orig {
		2016	my ($self) = @_;
		2017
		2018	$self->{load_original} = 1;
		2019	$self->{instantiate_time} = $cf::RUNTIME;
		2020	$self->last_access ($cf::RUNTIME);
		2021	$self->instantiate;
		2022	}
		2023
		2024	sub load_header {
		2025	my ($self) = @_;
		2026
		2027	if ($self->load_header_temp) {
		2028	$self->prepare_temp;
		2029	} else {
		2030	$self->load_header_orig
1254	or return;	2031	or return;
		2032	$self->prepare_orig;
		2033	}
1255		2034
1256	$map->{load_path} = $path;	2035	$self->{deny_reset} = 1
		2036	if $self->no_reset;
1257		2037
1258	$map	2038	$self->default_region (cf::region::find_by_path $self->{path})
		2039	unless $self->default_region;
		2040
		2041	1
1259	}	2042	}
1260		2043
1261	sub find;	2044	sub find;
1262	sub find {	2045	sub find {
1263	my ($path, $origin) = @_;	2046	my ($path, $origin) = @_;
1264		2047
1265	#warn "find<$path,$origin>\n";#d#
1266
1267	$path = new cf::path $path, $origin && $origin->path;	2048	$path = normalise $path, $origin && $origin->path;
1268	my $key = $path->as_string;
1269		2049
1270	cf::lock_wait "map_find:$key";	2050	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1271
1272	$cf::MAP{$key} || do {
1273	my $guard = cf::lock_acquire "map_find:$key";	2051	my $guard2 = cf::lock_acquire "map_find:$path";
1274		2052
1275	# do it the slow way	2053	$cf::MAP{$path} || do {
1276	my $map = try_load_header $path->save_path;	2054	my $map = new_from_path cf::map $path
1277
1278	Coro::cede;
1279
1280	if ($map) {
1281	$map->last_access ((delete $map->{last_access})
1282	|| $cf::RUNTIME); #d#
1283	# safety
1284	$map->{instantiate_time} = $cf::RUNTIME
1285	if $map->{instantiate_time} > $cf::RUNTIME;
1286	} else {
1287	if (my $rmp = $path->random_map_params) {
1288	$map = generate_random_map $key, $rmp;
1289	} else {
1290	$map = try_load_header $path->load_path;
1291	}
1292
1293	$map or return;	2055	or return;
1294		2056
1295	$map->{load_original} = 1;
1296	$map->{instantiate_time} = $cf::RUNTIME;
1297	$map->last_access ($cf::RUNTIME);
1298	$map->instantiate;
1299
1300	# per-player maps become, after loading, normal maps
1301	$map->per_player (0) if $path->{user_rel};
1302	}
1303
1304	$map->path ($key);
1305	$map->{path} = $path;
1306	$map->{last_save} = $cf::RUNTIME;	2057	$map->{last_save} = $cf::RUNTIME;
1307		2058
1308	Coro::cede;	2059	$map->load_header
		2060	or return;
1309		2061
1310	if ($map->should_reset) {	2062	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2063	# doing this can freeze the server in a sync job, obviously
		2064	#$cf::WAIT_FOR_TICK->wait;
		2065	undef $guard2;
		2066	undef $guard1;
1311	$map->reset;	2067	$map->reset;
1312	undef $guard;
1313	$map = find $path	2068	return find $path;
1314	or return;
1315	}	2069	}
1316		2070
1317	$cf::MAP{$key} = $map	2071	$cf::MAP{$path} = $map
1318	}	2072	}
1319	}	2073	}
		2074
		2075	sub pre_load { }
		2076	#sub post_load { } # XS
1320		2077
1321	sub load {	2078	sub load {
1322	my ($self) = @_;	2079	my ($self) = @_;
1323		2080
		2081	local $self->{deny_reset} = 1; # loading can take a long time
		2082
1324	my $path = $self->{path};	2083	my $path = $self->{path};
		2084
		2085	{
1325	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2086	my $guard = cf::lock_acquire "map_data:$path";
1326		2087
		2088	return unless $self->valid;
1327	return if $self->in_memory != cf::MAP_SWAPPED;	2089	return unless $self->in_memory == cf::MAP_SWAPPED;
1328		2090
1329	$self->in_memory (cf::MAP_LOADING);	2091	$self->in_memory (cf::MAP_LOADING);
1330		2092
1331	$self->alloc;	2093	$self->alloc;
1332	$self->load_objects ($self->{load_path}, 1)	2094
		2095	$self->pre_load;
		2096	cf::cede_to_tick;
		2097
		2098	my $f = new_from_file cf::object::thawer $self->{load_path};
		2099	$f->skip_block;
		2100	$self->_load_objects ($f)
1333	or return;	2101	or return;
1334		2102
1335	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2103	$self->post_load_original
1336	if delete $self->{load_original};	2104	if delete $self->{load_original};
1337		2105
1338	if (my $uniq = $path->uniq_path) {	2106	if (my $uniq = $self->uniq_path) {
1339	utf8::encode $uniq;	2107	utf8::encode $uniq;
1340	if (aio_open $uniq, O_RDONLY, 0) {	2108	unless (aio_stat $uniq) {
		2109	if (my $f = new_from_file cf::object::thawer $uniq) {
1341	$self->clear_unique_items;	2110	$self->clear_unique_items;
1342	$self->load_objects ($uniq, 0);	2111	$self->_load_objects ($f);
		2112	$f->resolve_delayed_derefs;
		2113	}
1343	}	2114	}
1344	}	2115	}
1345		2116
1346	Coro::cede;	2117	$f->resolve_delayed_derefs;
1347		2118
		2119	cf::cede_to_tick;
1348	# now do the right thing for maps	2120	# now do the right thing for maps
1349	$self->link_multipart_objects;	2121	$self->link_multipart_objects;
1350
1351	if ($self->{path}->is_style_map) {
1352	$self->{deny_save} = 1;
1353	$self->{deny_reset} = 1;
1354	} else {
1355	$self->fix_auto_apply;
1356	$self->decay_objects;
1357	$self->update_buttons;
1358	$self->set_darkness_map;
1359	$self->difficulty ($self->estimate_difficulty)	2122	$self->difficulty ($self->estimate_difficulty)
1360	unless $self->difficulty;	2123	unless $self->difficulty;
		2124	cf::cede_to_tick;
		2125
		2126	unless ($self->{deny_activate}) {
		2127	$self->decay_objects;
		2128	$self->fix_auto_apply;
		2129	$self->update_buttons;
		2130	cf::cede_to_tick;
1361	$self->activate;	2131	$self->activate;
1362	}	2132	}
1363		2133
1364	Coro::cede;	2134	$self->{last_save} = $cf::RUNTIME;
		2135	$self->last_access ($cf::RUNTIME);
1365		2136
1366	$self->in_memory (cf::MAP_IN_MEMORY);	2137	$self->in_memory (cf::MAP_ACTIVE);
		2138	}
		2139
		2140	$self->post_load;
		2141	}
		2142
		2143	# customize the map for a given player, i.e.
		2144	# return the _real_ map. used by e.g. per-player
		2145	# maps to change the path to ~playername/mappath
		2146	sub customise_for {
		2147	my ($self, $ob) = @_;
		2148
		2149	return find "~" . $ob->name . "/" . $self->{path}
		2150	if $self->per_player;
		2151
		2152	# return find "?party/" . $ob->name . "/" . $self->{path}
		2153	# if $self->per_party;
		2154
		2155	$self
		2156	}
		2157
		2158	# find and load all maps in the 3x3 area around a map
		2159	sub load_neighbours {
		2160	my ($map) = @_;
		2161
		2162	my @neigh; # diagonal neighbours
		2163
		2164	for (0 .. 3) {
		2165	my $neigh = $map->tile_path ($_)
		2166	or next;
		2167	$neigh = find $neigh, $map
		2168	or next;
		2169	$neigh->load;
		2170
		2171	# now find the diagonal neighbours
		2172	push @neigh,
		2173	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2174	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2175	}
		2176
		2177	for (grep defined $_->[0], @neigh) {
		2178	my ($path, $origin) = @$_;
		2179	my $neigh = find $path, $origin
		2180	or next;
		2181	$neigh->load;
		2182	}
1367	}	2183	}
1368		2184
1369	sub find_sync {	2185	sub find_sync {
1370	my ($path, $origin) = @_;	2186	my ($path, $origin) = @_;
1371		2187
1372	cf::sync_job { cf::map::find $path, $origin }	2188	cf::sync_job { find $path, $origin }
1373	}	2189	}
1374		2190
1375	sub do_load_sync {	2191	sub do_load_sync {
1376	my ($map) = @_;	2192	my ($map) = @_;
1377		2193
		2194	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2195	if $Coro::current == $Coro::main;
		2196
1378	cf::sync_job { $map->load };	2197	cf::sync_job { $map->load };
		2198	}
		2199
		2200	our %MAP_PREFETCH;
		2201	our $MAP_PREFETCHER = undef;
		2202
		2203	sub find_async {
		2204	my ($path, $origin, $load) = @_;
		2205
		2206	$path = normalise $path, $origin && $origin->{path};
		2207
		2208	if (my $map = $cf::MAP{$path}) {
		2209	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2210	}
		2211
		2212	$MAP_PREFETCH{$path} |= $load;
		2213
		2214	$MAP_PREFETCHER ||= cf::async {
		2215	$Coro::current->{desc} = "map prefetcher";
		2216
		2217	while (%MAP_PREFETCH) {
		2218	while (my ($k, $v) = each %MAP_PREFETCH) {
		2219	if (my $map = find $k) {
		2220	$map->load if $v;
		2221	}
		2222
		2223	delete $MAP_PREFETCH{$k};
		2224	}
		2225	}
		2226	undef $MAP_PREFETCHER;
		2227	};
		2228	$MAP_PREFETCHER->prio (6);
		2229
		2230	()
		2231	}
		2232
		2233	# common code, used by both ->save and ->swapout
		2234	sub _save {
		2235	my ($self) = @_;
		2236
		2237	$self->{last_save} = $cf::RUNTIME;
		2238
		2239	return unless $self->dirty;
		2240
		2241	my $save = $self->save_path; utf8::encode $save;
		2242	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2243
		2244	$self->{load_path} = $save;
		2245
		2246	return if $self->{deny_save};
		2247
		2248	local $self->{last_access} = $self->last_access;#d#
		2249
		2250	cf::async {
		2251	$Coro::current->{desc} = "map player save";
		2252	$_->contr->save for $self->players;
		2253	};
		2254
		2255	cf::get_slot 0.02;
		2256
		2257	if ($uniq) {
		2258	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2259	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2260	} else {
		2261	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2262	}
1379	}	2263	}
1380		2264
1381	sub save {	2265	sub save {
1382	my ($self) = @_;	2266	my ($self) = @_;
1383		2267
1384	my $lock = cf::lock_acquire "map_data:" . $self->path;	2268	my $lock = cf::lock_acquire "map_data:$self->{path}";
1385		2269
1386	$self->{last_save} = $cf::RUNTIME;	2270	$self->_save;
1387
1388	return unless $self->dirty;
1389
1390	my $save = $self->{path}->save_path; utf8::encode $save;
1391	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1392
1393	$self->{load_path} = $save;
1394
1395	return if $self->{deny_save};
1396
1397	local $self->{last_access} = $self->last_access;#d#
1398
1399	cf::async {
1400	$_->contr->save for $self->players;
1401	};
1402
1403	if ($uniq) {
1404	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1405	$self->save_objects ($uniq, cf::IO_UNIQUES);
1406	} else {
1407	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1408	}
1409	}	2271	}
1410		2272
1411	sub swap_out {	2273	sub swap_out {
1412	my ($self) = @_;	2274	my ($self) = @_;
1413		2275
1414	# save first because save cedes
1415	$self->save;
1416
1417	my $lock = cf::lock_acquire "map_data:" . $self->path;	2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
1418		2277
		2278	return if $self->in_memory != cf::MAP_ACTIVE;
		2279	return if $self->{deny_save};
1419	return if $self->players;	2280	return if $self->players;
1420	return if $self->in_memory != cf::MAP_IN_MEMORY;
1421	return if $self->{deny_save};
1422		2281
		2282	# first deactivate the map and "unlink" it from the core
		2283	$self->deactivate;
		2284	$_->clear_links_to ($self) for values %cf::MAP;
		2285	$self->in_memory (cf::MAP_SWAPPED);
		2286
		2287	# then atomically save
		2288	$self->_save;
		2289
		2290	# then free the map
1423	$self->clear;	2291	$self->clear;
1424	$self->in_memory (cf::MAP_SWAPPED);
1425	}	2292	}
1426		2293
1427	sub reset_at {	2294	sub reset_at {
1428	my ($self) = @_;	2295	my ($self) = @_;
1429		2296
1430	# TODO: safety, remove and allow resettable per-player maps	2297	# TODO: safety, remove and allow resettable per-player maps
1431	return 1e99 if $self->{path}{user_rel};
1432	return 1e99 if $self->{deny_reset};	2298	return 1e99 if $self->{deny_reset};
1433		2299
1434	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2300	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1435	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2301	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1436		2302
…		…
1441	my ($self) = @_;	2307	my ($self) = @_;
1442		2308
1443	$self->reset_at <= $cf::RUNTIME	2309	$self->reset_at <= $cf::RUNTIME
1444	}	2310	}
1445		2311
1446	sub unlink_save {
1447	my ($self) = @_;
1448
1449	utf8::encode (my $save = $self->{path}->save_path);
1450	aioreq_pri 3; IO::AIO::aio_unlink $save;
1451	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1452	}
1453
1454	sub rename {
1455	my ($self, $new_path) = @_;
1456
1457	$self->unlink_save;
1458
1459	delete $cf::MAP{$self->path};
1460	$self->{path} = new cf::path $new_path;
1461	$self->path ($self->{path}->as_string);
1462	$cf::MAP{$self->path} = $self;
1463
1464	$self->save;
1465	}
1466
1467	sub reset {	2312	sub reset {
1468	my ($self) = @_;	2313	my ($self) = @_;
1469		2314
1470	my $lock = cf::lock_acquire "map_data:" . $self->path;	2315	my $lock = cf::lock_acquire "map_data:$self->{path}";
1471		2316
1472	return if $self->players;	2317	return if $self->players;
1473	return if $self->{path}{user_rel};#d#
1474		2318
1475	warn "resetting map ", $self->path;#d#	2319	warn "resetting map ", $self->path, "\n";
		2320
		2321	$self->in_memory (cf::MAP_SWAPPED);
		2322
		2323	# need to save uniques path
		2324	unless ($self->{deny_save}) {
		2325	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2326
		2327	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2328	if $uniq;
		2329	}
1476		2330
1477	delete $cf::MAP{$self->path};	2331	delete $cf::MAP{$self->path};
1478		2332
		2333	$self->deactivate;
1479	$_->clear_links_to ($self) for values %cf::MAP;	2334	$_->clear_links_to ($self) for values %cf::MAP;
		2335	$self->clear;
1480		2336
1481	$self->unlink_save;	2337	$self->unlink_save;
1482	$self->destroy;	2338	$self->destroy;
1483	}	2339	}
1484		2340
1485	my $nuke_counter = "aaaa";	2341	my $nuke_counter = "aaaa";
1486		2342
1487	sub nuke {	2343	sub nuke {
1488	my ($self) = @_;	2344	my ($self) = @_;
1489		2345
		2346	{
		2347	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2348
		2349	delete $cf::MAP{$self->path};
		2350
		2351	$self->unlink_save;
		2352
		2353	bless $self, "cf::map::wrap";
		2354	delete $self->{deny_reset};
1490	$self->{deny_save} = 1;	2355	$self->{deny_save} = 1;
1491	$self->reset_timeout (1);	2356	$self->reset_timeout (1);
1492	$self->rename ("{nuke}/" . ($nuke_counter++));	2357	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2358
		2359	$cf::MAP{$self->path} = $self;
		2360	}
		2361
1493	$self->reset; # polite request, might not happen	2362	$self->reset; # polite request, might not happen
1494	}	2363	}
1495		2364
1496	sub customise_for {	2365	=item $maps = cf::map::tmp_maps
1497	my ($map, $ob) = @_;
1498		2366
1499	if ($map->per_player) {	2367	Returns an arrayref with all map paths of currently instantiated and saved
1500	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2368	maps. May block.
		2369
		2370	=cut
		2371
		2372	sub tmp_maps() {
1501	}	2373	[
1502		2374	map {
1503	$map	2375	utf8::decode $_;
		2376	/\.map$/
		2377	? normalise $_
		2378	: ()
		2379	} @{ aio_readdir $TMPDIR or [] }
		2380	]
1504	}	2381	}
1505		2382
1506	sub emergency_save {	2383	=item $maps = cf::map::random_maps
1507	my $freeze_guard = cf::freeze_mainloop;
1508		2384
1509	warn "enter emergency perl save\n";	2385	Returns an arrayref with all map paths of currently instantiated and saved
		2386	random maps. May block.
1510		2387
1511	cf::sync_job {	2388	=cut
1512	warn "begin emergency player save\n";
1513	$_->save for values %cf::PLAYER;
1514	warn "end emergency player save\n";
1515		2389
1516	warn "begin emergency map save\n";	2390	sub random_maps() {
1517	$_->save for values %cf::MAP;	2391	[
1518	warn "end emergency map save\n";	2392	map {
		2393	utf8::decode $_;
		2394	/\.map$/
		2395	? normalise "?random/$_"
		2396	: ()
		2397	} @{ aio_readdir $RANDOMDIR or [] }
		2398	]
		2399	}
		2400
		2401	=item cf::map::unique_maps
		2402
		2403	Returns an arrayref of paths of all shared maps that have
		2404	instantiated unique items. May block.
		2405
		2406	=cut
		2407
		2408	sub unique_maps() {
		2409	[
		2410	map {
		2411	utf8::decode $_;
		2412	s/\.map$//; # TODO future compatibility hack
		2413	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2414	? ()
		2415	: normalise $_
		2416	} @{ aio_readdir $UNIQUEDIR or [] }
		2417	]
		2418	}
		2419
		2420	=item cf::map::static_maps
		2421
		2422	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2423	file in the shared directory excluding F</styles> and F</editor>). May
		2424	block.
		2425
		2426	=cut
		2427
		2428	sub static_maps() {
		2429	my @dirs = "";
		2430	my @maps;
		2431
		2432	while (@dirs) {
		2433	my $dir = shift @dirs;
		2434
		2435	next if $dir eq "/styles" || $dir eq "/editor";
		2436
		2437	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2438	or return;
		2439
		2440	for (@$files) {
		2441	s/\.map$// or next;
		2442	utf8::decode $_;
		2443	push @maps, "$dir/$_";
		2444	}
		2445
		2446	push @dirs, map "$dir/$_", @$dirs;
1519	};	2447	}
1520		2448
1521	warn "leave emergency perl save\n";	2449	\@maps
		2450	}
		2451
		2452	=back
		2453
		2454	=head3 cf::object
		2455
		2456	=cut
		2457
		2458	package cf::object;
		2459
		2460	=over 4
		2461
		2462	=item $ob->inv_recursive
		2463
		2464	Returns the inventory of the object I<and> their inventories, recursively,
		2465	but I<not> the object itself.
		2466
		2467	=cut
		2468
		2469	sub inv_recursive_;
		2470	sub inv_recursive_ {
		2471	map { $_, inv_recursive_ $_->inv } @_
		2472	}
		2473
		2474	sub inv_recursive {
		2475	inv_recursive_ inv $_[0]
		2476	}
		2477
		2478	=item $ref = $ob->ref
		2479
		2480	Creates and returns a persistent reference to an object that can be stored as a string.
		2481
		2482	=item $ob = cf::object::deref ($refstring)
		2483
		2484	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2485	even if the object actually exists. May block.
		2486
		2487	=cut
		2488
		2489	sub deref {
		2490	my ($ref) = @_;
		2491
		2492	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2493	my ($uuid, $name) = ($1, $2);
		2494	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2495	or return;
		2496	$pl->ob->uuid eq $uuid
		2497	or return;
		2498
		2499	$pl->ob
		2500	} else {
		2501	warn "$ref: cannot resolve object reference\n";
		2502	undef
		2503	}
1522	}	2504	}
1523		2505
1524	package cf;	2506	package cf;
1525		2507
1526	=back	2508	=back
1527
1528		2509
1529	=head3 cf::object::player	2510	=head3 cf::object::player
1530		2511
1531	=over 4	2512	=over 4
1532		2513
…		…
1535	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2516	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1536	can be C<undef>. Does the right thing when the player is currently in a	2517	can be C<undef>. Does the right thing when the player is currently in a
1537	dialogue with the given NPC character.	2518	dialogue with the given NPC character.
1538		2519
1539	=cut	2520	=cut
		2521
		2522	our $SAY_CHANNEL = {
		2523	id => "say",
		2524	title => "Map",
		2525	reply => "say ",
		2526	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2527	};
		2528
		2529	our $CHAT_CHANNEL = {
		2530	id => "chat",
		2531	title => "Chat",
		2532	reply => "chat ",
		2533	tooltip => "Player chat and shouts, global to the server.",
		2534	};
1540		2535
1541	# rough implementation of a future "reply" method that works	2536	# rough implementation of a future "reply" method that works
1542	# with dialog boxes.	2537	# with dialog boxes.
1543	#TODO: the first argument must go, split into a $npc->reply_to ( method	2538	#TODO: the first argument must go, split into a $npc->reply_to ( method
1544	sub cf::object::player::reply($$$;$) {	2539	sub cf::object::player::reply($$$;$) {
…		…
1546		2541
1547	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2542	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1548		2543
1549	if ($self->{record_replies}) {	2544	if ($self->{record_replies}) {
1550	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2545	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2546
1551	} else {	2547	} else {
		2548	my $pl = $self->contr;
		2549
		2550	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2551	my $dialog = $pl->{npc_dialog};
		2552	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2553
		2554	} else {
1552	$msg = $npc->name . " says: $msg" if $npc;	2555	$msg = $npc->name . " says: $msg" if $npc;
1553	$self->message ($msg, $flags);	2556	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2557	}
1554	}	2558	}
		2559	}
		2560
		2561	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2562
		2563	=cut
		2564
		2565	sub cf::object::send_msg {
		2566	my $pl = shift->contr
		2567	or return;
		2568	$pl->send_msg (@_);
1555	}	2569	}
1556		2570
1557	=item $player_object->may ("access")	2571	=item $player_object->may ("access")
1558		2572
1559	Returns wether the given player is authorized to access resource "access"	2573	Returns wether the given player is authorized to access resource "access"
…		…
1572		2586
1573	=item $player_object->enter_link	2587	=item $player_object->enter_link
1574		2588
1575	Freezes the player and moves him/her to a special map (C<{link}>).	2589	Freezes the player and moves him/her to a special map (C<{link}>).
1576		2590
1577	The player should be reaosnably safe there for short amounts of time. You	2591	The player should be reasonably safe there for short amounts of time (e.g.
1578	I<MUST> call C<leave_link> as soon as possible, though.	2592	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2593	though, as the player cannot control the character while it is on the link
		2594	map.
		2595
		2596	Will never block.
1579		2597
1580	=item $player_object->leave_link ($map, $x, $y)	2598	=item $player_object->leave_link ($map, $x, $y)
1581		2599
1582	Moves the player out of the specila link map onto the given map. If the	2600	Moves the player out of the special C<{link}> map onto the specified
1583	map is not valid (or omitted), the player will be moved back to the	2601	map. If the map is not valid (or omitted), the player will be moved back
1584	location he/she was before the call to C<enter_link>, or, if that fails,	2602	to the location he/she was before the call to C<enter_link>, or, if that
1585	to the emergency map position.	2603	fails, to the emergency map position.
1586		2604
1587	Might block.	2605	Might block.
1588		2606
1589	=cut	2607	=cut
		2608
		2609	sub link_map {
		2610	unless ($LINK_MAP) {
		2611	$LINK_MAP = cf::map::find "{link}"
		2612	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2613	$LINK_MAP->load;
		2614	}
		2615
		2616	$LINK_MAP
		2617	}
1590		2618
1591	sub cf::object::player::enter_link {	2619	sub cf::object::player::enter_link {
1592	my ($self) = @_;	2620	my ($self) = @_;
1593		2621
1594	$self->deactivate_recursive;	2622	$self->deactivate_recursive;
1595		2623
1596	return if $self->map == $LINK_MAP;	2624	++$self->{_link_recursion};
		2625
		2626	return if UNIVERSAL::isa $self->map, "ext::map_link";
1597		2627
1598	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2628	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1599	if $self->map;	2629	if $self->map && $self->map->{path} ne "{link}";
1600		2630
1601	$self->enter_map ($LINK_MAP, 20, 20);	2631	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1602	}	2632	}
1603		2633
1604	sub cf::object::player::leave_link {	2634	sub cf::object::player::leave_link {
1605	my ($self, $map, $x, $y) = @_;	2635	my ($self, $map, $x, $y) = @_;
		2636
		2637	return unless $self->contr->active;
1606		2638
1607	my $link_pos = delete $self->{_link_pos};	2639	my $link_pos = delete $self->{_link_pos};
1608		2640
1609	unless ($map) {	2641	unless ($map) {
1610	# restore original map position	2642	# restore original map position
…		…
1621	($x, $y) = (-1, -1)	2653	($x, $y) = (-1, -1)
1622	unless (defined $x) && (defined $y);	2654	unless (defined $x) && (defined $y);
1623		2655
1624	# use -1 or undef as default coordinates, not 0, 0	2656	# use -1 or undef as default coordinates, not 0, 0
1625	($x, $y) = ($map->enter_x, $map->enter_y)	2657	($x, $y) = ($map->enter_x, $map->enter_y)
1626	if $x <=0 && $y <= 0;	2658	if $x <= 0 && $y <= 0;
1627		2659
1628	$map->load;	2660	$map->load;
		2661	$map->load_neighbours;
1629		2662
1630	return unless $self->contr->active;	2663	return unless $self->contr->active;
		2664
		2665	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2666	if ($self->enter_map ($map, $x, $y)) {
		2667	# entering was successful
		2668	delete $self->{_link_recursion};
		2669	# only activate afterwards, to support waiting in hooks
1631	$self->activate_recursive;	2670	$self->activate_recursive;
1632	$self->enter_map ($map, $x, $y);
1633	}
1634
1635	cf::player->attach (
1636	on_logout => sub {
1637	my ($pl) = @_;
1638
1639	# abort map switching before logout
1640	if ($pl->ob->{_link_pos}) {
1641	cf::sync_job {
1642	$pl->ob->leave_link
1643	};
1644	}
1645	},	2671	}
1646	on_login => sub {
1647	my ($pl) = @_;
1648		2672
1649	# try to abort aborted map switching on player login :)	2673	}
1650	# should happen only on crashes
1651	if ($pl->ob->{_link_pos}) {
1652	$pl->ob->enter_link;
1653	(async {
1654	# we need this sleep as the login has a concurrent enter_exit running
1655	# and this sleep increases chances of the player not ending up in scorn
1656	$pl->ob->reply (undef,
1657	"There was an internal problem at your last logout, "
1658	. "the server will try to bring you to your intended destination in a second.",
1659	cf::NDI_RED);
1660	Coro::Timer::sleep 1;
1661	$pl->ob->leave_link;
1662	})->prio (2);
1663	}
1664	},
1665	);
1666		2674
1667	=item $player_object->goto ($path, $x, $y)	2675	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1668		2676
		2677	Moves the player to the given map-path and coordinates by first freezing
		2678	her, loading and preparing them map, calling the provided $check callback
		2679	that has to return the map if sucecssful, and then unfreezes the player on
		2680	the new (success) or old (failed) map position. In either case, $done will
		2681	be called at the end of this process.
		2682
		2683	Note that $check will be called with a potentially non-loaded map, so if
		2684	it needs a loaded map it has to call C<< ->load >>.
		2685
1669	=cut	2686	=cut
		2687
		2688	our $GOTOGEN;
1670		2689
1671	sub cf::object::player::goto {	2690	sub cf::object::player::goto {
1672	my ($self, $path, $x, $y) = @_;	2691	my ($self, $path, $x, $y, $check, $done) = @_;
		2692
		2693	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2694	warn "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2695	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2696	($path, $x, $y) = @$EMERGENCY_POSITION;
		2697	}
		2698
		2699	# do generation counting so two concurrent goto's will be executed in-order
		2700	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1673		2701
1674	$self->enter_link;	2702	$self->enter_link;
1675		2703
1676	(async {	2704	(async {
1677	$path = new cf::path $path;	2705	$Coro::current->{desc} = "player::goto $path $x $y";
1678		2706
1679	my $map = cf::map::find $path->as_string;	2707	# *tag paths override both path and x|y
		2708	if ($path =~ /^\*(.*)$/) {
		2709	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2710	my $ob = $obs[rand @obs];
		2711
		2712	# see if we actually can go there
		2713	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2714	$ob = $obs[rand @obs];
		2715	} else {
		2716	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2717	}
		2718	# else put us there anyways for now #d#
		2719
		2720	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2721	} else {
		2722	($path, $x, $y) = (undef, undef, undef);
		2723	}
		2724	}
		2725
		2726	my $map = eval {
		2727	my $map = defined $path ? cf::map::find $path : undef;
		2728
		2729	if ($map) {
1680	$map = $map->customise_for ($self) if $map;	2730	$map = $map->customise_for ($self);
1681		2731	$map = $check->($map, $x, $y, $self) if $check && $map;
1682	# warn "entering ", $map->path, " at ($x, $y)\n"	2732	} else {
1683	# if $map;
1684
1685	$map or $map->cluck ("oy");#d#
1686	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2733	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2734	}
1687		2735
		2736	$map
		2737	};
		2738
		2739	if ($@) {
		2740	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2741	LOG llevError | logBacktrace, Carp::longmess $@;
		2742	}
		2743
		2744	if ($gen == $self->{_goto_generation}) {
		2745	delete $self->{_goto_generation};
1688	$self->leave_link ($map, $x, $y);	2746	$self->leave_link ($map, $x, $y);
		2747	}
		2748
		2749	$done->($self) if $done;
1689	})->prio (1);	2750	})->prio (1);
1690	}	2751	}
1691		2752
1692	=item $player_object->enter_exit ($exit_object)	2753	=item $player_object->enter_exit ($exit_object)
1693		2754
…		…
1695		2756
1696	sub parse_random_map_params {	2757	sub parse_random_map_params {
1697	my ($spec) = @_;	2758	my ($spec) = @_;
1698		2759
1699	my $rmp = { # defaults	2760	my $rmp = { # defaults
1700	xsize => 10,	2761	xsize => (cf::rndm 15, 40),
1701	ysize => 10,	2762	ysize => (cf::rndm 15, 40),
		2763	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2764	#layout => string,
1702	};	2765	};
1703		2766
1704	for (split /\n/, $spec) {	2767	for (split /\n/, $spec) {
1705	my ($k, $v) = split /\s+/, $_, 2;	2768	my ($k, $v) = split /\s+/, $_, 2;
1706		2769
…		…
1718	# that depends on the exit object	2781	# that depends on the exit object
1719		2782
1720	my $rmp = parse_random_map_params $exit->msg;	2783	my $rmp = parse_random_map_params $exit->msg;
1721		2784
1722	if ($exit->map) {	2785	if ($exit->map) {
1723	$rmp->{region} = $exit->map->region_name;	2786	$rmp->{region} = $exit->region->name;
1724	$rmp->{origin_map} = $exit->map->path;	2787	$rmp->{origin_map} = $exit->map->path;
1725	$rmp->{origin_x} = $exit->x;	2788	$rmp->{origin_x} = $exit->x;
1726	$rmp->{origin_y} = $exit->y;	2789	$rmp->{origin_y} = $exit->y;
		2790
		2791	$exit->map->touch;
1727	}	2792	}
1728		2793
1729	$rmp->{random_seed} ||= $exit->random_seed;	2794	$rmp->{random_seed} ||= $exit->random_seed;
1730		2795
1731	my $data = cf::to_json $rmp;	2796	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1732	my $md5 = Digest::MD5::md5_hex $data;	2797	my $md5 = Digest::MD5::md5_hex $data;
		2798	my $meta = "$RANDOMDIR/$md5.meta";
1733		2799
1734	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2800	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1735	aio_write $fh, 0, (length $data), $data, 0;	2801	aio_write $fh, 0, (length $data), $data, 0;
		2802	undef $fh;
		2803	aio_rename "$meta~", $meta;
1736		2804
		2805	my $slaying = "?random/$md5";
		2806
		2807	if ($exit->valid) {
1737	$exit->slaying ("?random/$md5");	2808	$exit->slaying ("?random/$md5");
1738	$exit->msg (undef);	2809	$exit->msg (undef);
		2810	}
1739	}	2811	}
1740	}	2812	}
1741		2813
1742	sub cf::object::player::enter_exit {	2814	sub cf::object::player::enter_exit {
1743	my ($self, $exit) = @_;	2815	my ($self, $exit) = @_;
…		…
1745	return unless $self->type == cf::PLAYER;	2817	return unless $self->type == cf::PLAYER;
1746		2818
1747	$self->enter_link;	2819	$self->enter_link;
1748		2820
1749	(async {	2821	(async {
1750	$self->deactivate_recursive; # just to be sure	2822	$Coro::current->{desc} = "enter_exit";
		2823
1751	unless (eval {	2824	unless (eval {
		2825	$self->deactivate_recursive; # just to be sure
		2826
		2827	# random map handling
		2828	{
		2829	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2830
1752	prepare_random_map $exit	2831	prepare_random_map $exit
1753	if $exit->slaying eq "/!";	2832	if $exit->slaying eq "/!";
		2833	}
1754		2834
1755	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2835	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1756	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2836	my $x = $exit->stats->hp;
		2837	my $y = $exit->stats->sp;
1757		2838
		2839	$self->goto ($map, $x, $y);
		2840
		2841	# if exit is damned, update players death & WoR home-position
		2842	$self->contr->savebed ($map, $x, $y)
		2843	if $exit->flag (cf::FLAG_DAMNED);
		2844
1758	1;	2845	1
1759	}) {	2846	}) {
1760	$self->message ("Something went wrong deep within the crossfire server. "	2847	$self->message ("Something went wrong deep within the deliantra server. "
1761	. "I'll try to bring you back to the map you were before. "	2848	. "I'll try to bring you back to the map you were before. "
1762	. "Please report this to the dungeon master",	2849	. "Please report this to the dungeon master!",
1763	cf::NDI_UNIQUE | cf::NDI_RED);	2850	cf::NDI_UNIQUE | cf::NDI_RED);
1764		2851
1765	warn "ERROR in enter_exit: $@";	2852	warn "ERROR in enter_exit: $@";
1766	$self->leave_link;	2853	$self->leave_link;
1767	}	2854	}
1768	})->prio (1);	2855	})->prio (1);
…		…
1781		2868
1782	sub cf::client::send_drawinfo {	2869	sub cf::client::send_drawinfo {
1783	my ($self, $text, $flags) = @_;	2870	my ($self, $text, $flags) = @_;
1784		2871
1785	utf8::encode $text;	2872	utf8::encode $text;
1786	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2873	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1787	}	2874	}
1788		2875
		2876	=item $client->send_big_packet ($pkt)
		2877
		2878	Like C<send_packet>, but tries to compress large packets, and fragments
		2879	them as required.
		2880
		2881	=cut
		2882
		2883	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2884
		2885	sub cf::client::send_big_packet {
		2886	my ($self, $pkt) = @_;
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2902
		2903	Send a drawinfo or msg packet to the client, formatting the msg for the
		2904	client if neccessary. C<$type> should be a string identifying the type of
		2905	the message, with C<log> being the default. If C<$color> is negative, suppress
		2906	the message unless the client supports the msg packet.
		2907
		2908	=cut
		2909
		2910	# non-persistent channels (usually the info channel)
		2911	our %CHANNEL = (
		2912	"c/motd" => {
		2913	id => "infobox",
		2914	title => "MOTD",
		2915	reply => undef,
		2916	tooltip => "The message of the day",
		2917	},
		2918	"c/identify" => {
		2919	id => "infobox",
		2920	title => "Identify",
		2921	reply => undef,
		2922	tooltip => "Items recently identified",
		2923	},
		2924	"c/examine" => {
		2925	id => "infobox",
		2926	title => "Examine",
		2927	reply => undef,
		2928	tooltip => "Signs and other items you examined",
		2929	},
		2930	"c/shopinfo" => {
		2931	id => "infobox",
		2932	title => "Shop Info",
		2933	reply => undef,
		2934	tooltip => "What your bargaining skill tells you about the shop",
		2935	},
		2936	"c/book" => {
		2937	id => "infobox",
		2938	title => "Book",
		2939	reply => undef,
		2940	tooltip => "The contents of a note or book",
		2941	},
		2942	"c/lookat" => {
		2943	id => "infobox",
		2944	title => "Look",
		2945	reply => undef,
		2946	tooltip => "What you saw there",
		2947	},
		2948	"c/who" => {
		2949	id => "infobox",
		2950	title => "Players",
		2951	reply => undef,
		2952	tooltip => "Shows players who are currently online",
		2953	},
		2954	"c/body" => {
		2955	id => "infobox",
		2956	title => "Body Parts",
		2957	reply => undef,
		2958	tooltip => "Shows which body parts you posess and are available",
		2959	},
		2960	"c/statistics" => {
		2961	id => "infobox",
		2962	title => "Statistics",
		2963	reply => undef,
		2964	tooltip => "Shows your primary statistics",
		2965	},
		2966	"c/skills" => {
		2967	id => "infobox",
		2968	title => "Skills",
		2969	reply => undef,
		2970	tooltip => "Shows your experience per skill and item power",
		2971	},
		2972	"c/shopitems" => {
		2973	id => "infobox",
		2974	title => "Shop Items",
		2975	reply => undef,
		2976	tooltip => "Shows the items currently for sale in this shop",
		2977	},
		2978	"c/resistances" => {
		2979	id => "infobox",
		2980	title => "Resistances",
		2981	reply => undef,
		2982	tooltip => "Shows your resistances",
		2983	},
		2984	"c/pets" => {
		2985	id => "infobox",
		2986	title => "Pets",
		2987	reply => undef,
		2988	tooltip => "Shows information abotu your pets/a specific pet",
		2989	},
		2990	"c/perceiveself" => {
		2991	id => "infobox",
		2992	title => "Perceive Self",
		2993	reply => undef,
		2994	tooltip => "You gained detailed knowledge about yourself",
		2995	},
		2996	"c/uptime" => {
		2997	id => "infobox",
		2998	title => "Uptime",
		2999	reply => undef,
		3000	tooltip => "How long the server has been running since last restart",
		3001	},
		3002	"c/mapinfo" => {
		3003	id => "infobox",
		3004	title => "Map Info",
		3005	reply => undef,
		3006	tooltip => "Information related to the maps",
		3007	},
		3008	"c/party" => {
		3009	id => "party",
		3010	title => "Party",
		3011	reply => "gsay ",
		3012	tooltip => "Messages and chat related to your party",
		3013	},
		3014	"c/death" => {
		3015	id => "death",
		3016	title => "Death",
		3017	reply => undef,
		3018	tooltip => "Reason for and more info about your most recent death",
		3019	},
		3020	"c/say" => $SAY_CHANNEL,
		3021	"c/chat" => $CHAT_CHANNEL,
		3022	);
		3023
		3024	sub cf::client::send_msg {
		3025	my ($self, $channel, $msg, $color, @extra) = @_;
		3026
		3027	$msg = $self->pl->expand_cfpod ($msg)
		3028	unless $color & cf::NDI_VERBATIM;
		3029
		3030	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3031
		3032	# check predefined channels, for the benefit of C
		3033	if ($CHANNEL{$channel}) {
		3034	$channel = $CHANNEL{$channel};
		3035
		3036	$self->ext_msg (channel_info => $channel);
		3037	$channel = $channel->{id};
		3038
		3039	} elsif (ref $channel) {
		3040	# send meta info to client, if not yet sent
		3041	unless (exists $self->{channel}{$channel->{id}}) {
		3042	$self->{channel}{$channel->{id}} = $channel;
		3043	$self->ext_msg (channel_info => $channel);
		3044	}
		3045
		3046	$channel = $channel->{id};
		3047	}
		3048
		3049	return unless @extra || length $msg;
		3050
		3051	# default colour, mask it out
		3052	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3053	if $color & cf::NDI_DEF;
		3054
		3055	my $pkt = "msg "
		3056	. $self->{json_coder}->encode (
		3057	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3058	);
		3059
		3060	$self->send_big_packet ($pkt);
		3061	}
		3062
		3063	=item $client->ext_msg ($type, @msg)
		3064
		3065	Sends an ext event to the client.
		3066
		3067	=cut
		3068
		3069	sub cf::client::ext_msg($$@) {
		3070	my ($self, $type, @msg) = @_;
		3071
		3072	if ($self->extcmd == 2) {
		3073	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3074	} elsif ($self->extcmd == 1) { # TODO: remove
		3075	push @msg, msgtype => "event_$type";
		3076	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3077	}
		3078	}
		3079
		3080	=item $client->ext_reply ($msgid, @msg)
		3081
		3082	Sends an ext reply to the client.
		3083
		3084	=cut
		3085
		3086	sub cf::client::ext_reply($$@) {
		3087	my ($self, $id, @msg) = @_;
		3088
		3089	if ($self->extcmd == 2) {
		3090	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3091	} elsif ($self->extcmd == 1) {
		3092	#TODO: version 1, remove
		3093	unshift @msg, msgtype => "reply", msgid => $id;
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
		3096	}
1789		3097
1790	=item $success = $client->query ($flags, "text", \&cb)	3098	=item $success = $client->query ($flags, "text", \&cb)
1791		3099
1792	Queues a query to the client, calling the given callback with	3100	Queues a query to the client, calling the given callback with
1793	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3101	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1794	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3102	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1795		3103
1796	Queries can fail, so check the return code. Or don't, as queries will become	3104	Queries can fail, so check the return code. Or don't, as queries will
1797	reliable at some point in the future.	3105	become reliable at some point in the future.
1798		3106
1799	=cut	3107	=cut
1800		3108
1801	sub cf::client::query {	3109	sub cf::client::query {
1802	my ($self, $flags, $text, $cb) = @_;	3110	my ($self, $flags, $text, $cb) = @_;
…		…
1810	utf8::encode $text;	3118	utf8::encode $text;
1811	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3119	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1812		3120
1813	$self->send_packet ($self->{query_queue}[0][0])	3121	$self->send_packet ($self->{query_queue}[0][0])
1814	if @{ $self->{query_queue} } == 1;	3122	if @{ $self->{query_queue} } == 1;
		3123
		3124	1
1815	}	3125	}
1816		3126
1817	cf::client->attach (	3127	cf::client->attach (
		3128	on_connect => sub {
		3129	my ($ns) = @_;
		3130
		3131	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3132	},
1818	on_reply => sub {	3133	on_reply => sub {
1819	my ($ns, $msg) = @_;	3134	my ($ns, $msg) = @_;
1820		3135
1821	# this weird shuffling is so that direct followup queries	3136	# this weird shuffling is so that direct followup queries
1822	# get handled first	3137	# get handled first
1823	my $queue = delete $ns->{query_queue}	3138	my $queue = delete $ns->{query_queue}
1824	or return; # be conservative, not sure how that can happen, but we saw a crash here	3139	or return; # be conservative, not sure how that can happen, but we saw a crash here
1825		3140
1826	(shift @$queue)->[1]->($msg);	3141	(shift @$queue)->[1]->($msg);
		3142	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1827		3143
1828	push @{ $ns->{query_queue} }, @$queue;	3144	push @{ $ns->{query_queue} }, @$queue;
1829		3145
1830	if (@{ $ns->{query_queue} } == @$queue) {	3146	if (@{ $ns->{query_queue} } == @$queue) {
1831	if (@$queue) {	3147	if (@$queue) {
…		…
1833	} else {	3149	} else {
1834	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3150	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1835	}	3151	}
1836	}	3152	}
1837	},	3153	},
		3154	on_exticmd => sub {
		3155	my ($ns, $buf) = @_;
		3156
		3157	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3158
		3159	if (ref $msg) {
		3160	my ($type, $reply, @payload) =
		3161	"ARRAY" eq ref $msg
		3162	? @$msg
		3163	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3164
		3165	my @reply;
		3166
		3167	if (my $cb = $EXTICMD{$type}) {
		3168	@reply = $cb->($ns, @payload);
		3169	}
		3170
		3171	$ns->ext_reply ($reply, @reply)
		3172	if $reply;
		3173
		3174	} else {
		3175	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3176	}
		3177
		3178	cf::override;
		3179	},
1838	);	3180	);
1839		3181
1840	=item $client->async (\&cb)	3182	=item $client->async (\&cb)
1841		3183
1842	Create a new coroutine, running the specified callback. The coroutine will	3184	Create a new coroutine, running the specified callback. The coroutine will
…		…
1858		3200
1859	$coro	3201	$coro
1860	}	3202	}
1861		3203
1862	cf::client->attach (	3204	cf::client->attach (
1863	on_destroy => sub {	3205	on_client_destroy => sub {
1864	my ($ns) = @_;	3206	my ($ns) = @_;
1865		3207
1866	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3208	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1867	},	3209	},
1868	);	3210	);
…		…
1883	our $safe = new Safe "safe";	3225	our $safe = new Safe "safe";
1884	our $safe_hole = new Safe::Hole;	3226	our $safe_hole = new Safe::Hole;
1885		3227
1886	$SIG{FPE} = 'IGNORE';	3228	$SIG{FPE} = 'IGNORE';
1887		3229
1888	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3230	$safe->permit_only (Opcode::opset qw(
		3231	:base_core :base_mem :base_orig :base_math :base_loop
		3232	grepstart grepwhile mapstart mapwhile
		3233	sort time
		3234	));
1889		3235
1890	# here we export the classes and methods available to script code	3236	# here we export the classes and methods available to script code
1891		3237
1892	=pod	3238	=pod
1893		3239
1894	The following fucntions and emthods are available within a safe environment:	3240	The following functions and methods are available within a safe environment:
1895		3241
1896	cf::object contr pay_amount pay_player map	3242	cf::object
		3243	contr pay_amount pay_player map x y force_find force_add destroy
		3244	insert remove name archname title slaying race decrease split
		3245	value
		3246
1897	cf::object::player player	3247	cf::object::player
1898	cf::player peaceful	3248	player
1899	cf::map trigger	3249
		3250	cf::player
		3251	peaceful
		3252
		3253	cf::map
		3254	trigger
1900		3255
1901	=cut	3256	=cut
1902		3257
1903	for (	3258	for (
1904	["cf::object" => qw(contr pay_amount pay_player map)],	3259	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3260	insert remove inv nrof name archname title slaying race
		3261	decrease split destroy change_exp value msg lore send_msg)],
1905	["cf::object::player" => qw(player)],	3262	["cf::object::player" => qw(player)],
1906	["cf::player" => qw(peaceful)],	3263	["cf::player" => qw(peaceful send_msg)],
1907	["cf::map" => qw(trigger)],	3264	["cf::map" => qw(trigger)],
1908	) {	3265	) {
1909	no strict 'refs';	3266	no strict 'refs';
1910	my ($pkg, @funs) = @$_;	3267	my ($pkg, @funs) = @$_;
1911	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3268	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1929		3286
1930	my $qcode = $code;	3287	my $qcode = $code;
1931	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3288	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1932	$qcode =~ s/\n/\\n/g;	3289	$qcode =~ s/\n/\\n/g;
1933		3290
		3291	%vars = (_dummy => 0) unless %vars;
		3292
		3293	my @res;
1934	local $_;	3294	local $_;
1935	local @safe::cf::_safe_eval_args = values %vars;
1936		3295
1937	my $eval =	3296	my $eval =
1938	"do {\n"	3297	"do {\n"
1939	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3298	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1940	. "#line 0 \"{$qcode}\"\n"	3299	. "#line 0 \"{$qcode}\"\n"
1941	. $code	3300	. $code
1942	. "\n}"	3301	. "\n}"
1943	;	3302	;
1944		3303
		3304	if ($CFG{safe_eval}) {
1945	sub_generation_inc;	3305	sub_generation_inc;
		3306	local @safe::cf::_safe_eval_args = values %vars;
1946	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3307	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1947	sub_generation_inc;	3308	sub_generation_inc;
		3309	} else {
		3310	local @cf::_safe_eval_args = values %vars;
		3311	@res = wantarray ? eval eval : scalar eval $eval;
		3312	}
1948		3313
1949	if ($@) {	3314	if ($@) {
1950	warn "$@";	3315	warn "$@";
1951	warn "while executing safe code '$code'\n";	3316	warn "while executing safe code '$code'\n";
1952	warn "with arguments " . (join " ", %vars) . "\n";	3317	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1971	=cut	3336	=cut
1972		3337
1973	sub register_script_function {	3338	sub register_script_function {
1974	my ($fun, $cb) = @_;	3339	my ($fun, $cb) = @_;
1975		3340
1976	no strict 'refs';	3341	$fun = "safe::$fun" if $CFG{safe_eval};
1977	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3342	*$fun = $safe_hole->wrap ($cb);
1978	}	3343	}
1979		3344
1980	=back	3345	=back
1981		3346
1982	=cut	3347	=cut
1983		3348
1984	#############################################################################	3349	#############################################################################
		3350	# the server's init and main functions
1985		3351
1986	=head2 EXTENSION DATABASE SUPPORT	3352	sub load_facedata($) {
		3353	my ($path) = @_;
1987		3354
1988	Crossfire maintains a very simple database for extension use. It can	3355	# HACK to clear player env face cache, we need some signal framework
1989	currently store anything that can be serialised using Storable, which	3356	# for this (global event?)
1990	excludes objects.	3357	%ext::player_env::MUSIC_FACE_CACHE = ();
1991		3358
1992	The parameter C<$family> should best start with the name of the extension	3359	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1993	using it, it should be unique.
1994		3360
1995	=over 4	3361	warn "loading facedata from $path\n";
1996		3362
1997	=item $hashref = cf::db_get $family	3363	my $facedata;
		3364	0 < aio_load $path, $facedata
		3365	or die "$path: $!";
1998		3366
1999	Return a hashref for use by the extension C<$family>, which can be	3367	$facedata = Coro::Storable::thaw $facedata;
2000	modified. After modifications, you have to call C<cf::db_dirty> or
2001	C<cf::db_sync>.
2002		3368
2003	=item $value = cf::db_get $family => $key	3369	$facedata->{version} == 2
		3370	or cf::cleanup "$path: version mismatch, cannot proceed.";
2004		3371
2005	Returns a single value from the database	3372	# patch in the exptable
2006		3373	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2007	=item cf::db_put $family => $hashref	3374	$facedata->{resource}{"res/exp_table"} = {
2008		3375	type => FT_RSRC,
2009	Stores the given family hashref into the database. Updates are delayed, if	3376	data => $exp_table,
2010	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3377	hash => (Digest::MD5::md5 $exp_table),
2011
2012	=item cf::db_put $family => $key => $value
2013
2014	Stores the given C<$value> in the family hash. Updates are delayed, if you
2015	want the data to be synced to disk immediately, use C<cf::db_sync>.
2016
2017	=item cf::db_dirty
2018
2019	Marks the database as dirty, to be updated at a later time.
2020
2021	=item cf::db_sync
2022
2023	Immediately write the database to disk I<if it is dirty>.
2024
2025	=cut
2026
2027	our $DB;
2028
2029	{
2030	my $path = cf::localdir . "/database.pst";
2031
2032	sub db_load() {
2033	$DB = stat $path ? Storable::retrieve $path : { };
2034	}
2035
2036	my $pid;
2037
2038	sub db_save() {
2039	waitpid $pid, 0 if $pid;
2040	if (0 == ($pid = fork)) {
2041	$DB->{_meta}{version} = 1;
2042	Storable::nstore $DB, "$path~";
2043	rename "$path~", $path;
2044	cf::_exit 0 if defined $pid;
2045	}
2046	}
2047
2048	my $dirty;
2049
2050	sub db_sync() {
2051	db_save if $dirty;
2052	undef $dirty;
2053	}
2054
2055	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2056	db_sync;
2057	});	3378	};
		3379	cf::cede_to_tick;
2058		3380
2059	sub db_dirty() {
2060	$dirty = 1;
2061	$idle->start;
2062	}	3381	{
		3382	my $faces = $facedata->{faceinfo};
2063		3383
2064	sub db_get($;$) {	3384	while (my ($face, $info) = each %$faces) {
2065	@_ >= 2	3385	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2066	? $DB->{$_[0]}{$_[1]}
2067	: ($DB->{$_[0]} ||= { })
2068	}
2069		3386
2070	sub db_put($$;$) {	3387	cf::face::set_visibility $idx, $info->{visibility};
2071	if (@_ >= 3) {	3388	cf::face::set_magicmap $idx, $info->{magicmap};
2072	$DB->{$_[0]}{$_[1]} = $_[2];	3389	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2073	} else {	3390	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2074	$DB->{$_[0]} = $_[1];
2075	}
2076	db_dirty;
2077	}
2078		3391
2079	cf::global->attach (	3392	cf::cede_to_tick;
2080	prio => 10000,
2081	on_cleanup => sub {
2082	db_sync;
2083	},	3393	}
2084	);
2085	}
2086		3394
2087	#############################################################################	3395	while (my ($face, $info) = each %$faces) {
2088	# the server's main()	3396	next unless $info->{smooth};
2089		3397
2090	sub cfg_load {	3398	my $idx = cf::face::find $face
		3399	or next;
		3400
		3401	if (my $smooth = cf::face::find $info->{smooth}) {
		3402	cf::face::set_smooth $idx, $smooth;
		3403	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3404	} else {
		3405	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3406	}
		3407
		3408	cf::cede_to_tick;
		3409	}
		3410	}
		3411
		3412	{
		3413	my $anims = $facedata->{animinfo};
		3414
		3415	while (my ($anim, $info) = each %$anims) {
		3416	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3417	cf::cede_to_tick;
		3418	}
		3419
		3420	cf::anim::invalidate_all; # d'oh
		3421	}
		3422
		3423	{
		3424	my $res = $facedata->{resource};
		3425
		3426	while (my ($name, $info) = each %$res) {
		3427	if (defined $info->{type}) {
		3428	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3429
		3430	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3431	cf::face::set_type $idx, $info->{type};
		3432	} else {
		3433	$RESOURCE{$name} = $info;
		3434	}
		3435
		3436	cf::cede_to_tick;
		3437	}
		3438	}
		3439
		3440	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3441
		3442	1
		3443	}
		3444
		3445	cf::global->attach (on_resource_update => sub {
		3446	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3447	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3448
		3449	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3450	my $sound = $soundconf->{compat}[$_]
		3451	or next;
		3452
		3453	my $face = cf::face::find "sound/$sound->[1]";
		3454	cf::sound::set $sound->[0] => $face;
		3455	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3456	}
		3457
		3458	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3459	my $face = cf::face::find "sound/$v";
		3460	cf::sound::set $k => $face;
		3461	}
		3462	}
		3463	});
		3464
		3465	register_exticmd fx_want => sub {
		3466	my ($ns, $want) = @_;
		3467
		3468	while (my ($k, $v) = each %$want) {
		3469	$ns->fx_want ($k, $v);
		3470	}
		3471	};
		3472
		3473	sub load_resource_file($) {
		3474	my $guard = lock_acquire "load_resource_file";
		3475
		3476	my $status = load_resource_file_ $_[0];
		3477	get_slot 0.1, 100;
		3478	cf::arch::commit_load;
		3479
		3480	$status
		3481	}
		3482
		3483	sub reload_regions {
		3484	# HACK to clear player env face cache, we need some signal framework
		3485	# for this (global event?)
		3486	%ext::player_env::MUSIC_FACE_CACHE = ();
		3487
		3488	load_resource_file "$MAPDIR/regions"
		3489	or die "unable to load regions file\n";
		3490
		3491	for (cf::region::list) {
		3492	$_->{match} = qr/$_->{match}/
		3493	if exists $_->{match};
		3494	}
		3495	}
		3496
		3497	sub reload_facedata {
		3498	load_facedata "$DATADIR/facedata"
		3499	or die "unable to load facedata\n";
		3500	}
		3501
		3502	sub reload_archetypes {
		3503	load_resource_file "$DATADIR/archetypes"
		3504	or die "unable to load archetypes\n";
		3505	}
		3506
		3507	sub reload_treasures {
		3508	load_resource_file "$DATADIR/treasures"
		3509	or die "unable to load treasurelists\n";
		3510	}
		3511
		3512	sub reload_resources {
		3513	warn "reloading resource files...\n";
		3514
		3515	reload_facedata;
		3516	reload_archetypes;
		3517	reload_regions;
		3518	reload_treasures;
		3519
		3520	warn "finished reloading resource files\n";
		3521	}
		3522
		3523	sub reload_config {
		3524	warn "reloading config file...\n";
		3525
2091	open my $fh, "<:utf8", cf::confdir . "/config"	3526	open my $fh, "<:utf8", "$CONFDIR/config"
2092	or return;	3527	or return;
2093		3528
2094	local $/;	3529	local $/;
2095	*CFG = YAML::Syck::Load <$fh>;	3530	*CFG = YAML::XS::Load scalar <$fh>;
2096		3531
2097	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2098		3533
2099	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2100	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2101		3536
2102	if (exists $CFG{mlockall}) {	3537	if (exists $CFG{mlockall}) {
…		…
2104	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2105	and die "WARNING: m(un)lockall failed: $!\n";	3540	and die "WARNING: m(un)lockall failed: $!\n";
2106	};	3541	};
2107	warn $@ if $@;	3542	warn $@ if $@;
2108	}	3543	}
		3544
		3545	warn "finished reloading resource files\n";
		3546	}
		3547
		3548	sub pidfile() {
		3549	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3550	or die "$PIDFILE: $!";
		3551	flock $fh, &Fcntl::LOCK_EX
		3552	or die "$PIDFILE: flock: $!";
		3553	$fh
		3554	}
		3555
		3556	# make sure only one server instance is running at any one time
		3557	sub atomic {
		3558	my $fh = pidfile;
		3559
		3560	my $pid = <$fh>;
		3561	kill 9, $pid if $pid > 0;
		3562
		3563	seek $fh, 0, 0;
		3564	print $fh $$;
		3565	}
		3566
		3567	sub main_loop {
		3568	warn "EV::loop starting\n";
		3569	if (1) {
		3570	EV::loop;
		3571	}
		3572	warn "EV::loop returned\n";
		3573	goto &main_loop unless $REALLY_UNLOOP;
2109	}	3574	}
2110		3575
2111	sub main {	3576	sub main {
		3577	cf::init_globals; # initialise logging
		3578
		3579	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3580	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3581	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3582	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3583
		3584	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3585
2112	# we must not ever block the main coroutine	3586	# we must not ever block the main coroutine
2113	local $Coro::idle = sub {	3587	local $Coro::idle = sub {
2114	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3588	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2115	async { Event::one_event };	3589	(async {
		3590	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3591	EV::loop EV::LOOP_ONESHOT;
		3592	})->prio (Coro::PRIO_MAX);
2116	};	3593	};
2117		3594
2118	cfg_load;	3595	evthread_start IO::AIO::poll_fileno;
2119	db_load;	3596
		3597	cf::sync_job {
		3598	cf::init_experience;
		3599	cf::init_anim;
		3600	cf::init_attackmess;
		3601	cf::init_dynamic;
		3602
		3603	cf::load_settings;
		3604	cf::load_materials;
		3605
		3606	reload_resources;
		3607	reload_config;
		3608	db_init;
		3609
		3610	cf::init_uuid;
		3611	cf::init_signals;
		3612	cf::init_skills;
		3613
		3614	cf::init_beforeplay;
		3615
		3616	atomic;
		3617
2120	load_extensions;	3618	load_extensions;
2121	Event::loop;	3619
		3620	utime time, time, $RUNTIMEFILE;
		3621
		3622	# no (long-running) fork's whatsoever before this point(!)
		3623	use POSIX ();
		3624	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3625
		3626	(pop @POST_INIT)->(0) while @POST_INIT;
		3627	};
		3628
		3629	cf::object::thawer::errors_are_fatal 0;
		3630	warn "parse errors in files are no longer fatal from this point on.\n";
		3631
		3632	main_loop;
2122	}	3633	}
2123		3634
2124	#############################################################################	3635	#############################################################################
2125	# initialisation	3636	# initialisation and cleanup
2126		3637
		3638	# install some emergency cleanup handlers
		3639	BEGIN {
		3640	our %SIGWATCHER = ();
		3641	for my $signal (qw(INT HUP TERM)) {
		3642	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3643	cf::cleanup "SIG$signal";
		3644	};
		3645	}
		3646	}
		3647
		3648	sub write_runtime_sync {
		3649	my $t0 = AE::time;
		3650
		3651	# first touch the runtime file to show we are still running:
		3652	# the fsync below can take a very very long time.
		3653
		3654	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3655
		3656	my $guard = cf::lock_acquire "write_runtime";
		3657
		3658	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3659	or return;
		3660
		3661	my $value = $cf::RUNTIME + 90 + 10;
		3662	# 10 is the runtime save interval, for a monotonic clock
		3663	# 60 allows for the watchdog to kill the server.
		3664
		3665	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3666	and return;
		3667
		3668	# always fsync - this file is important
		3669	aio_fsync $fh
		3670	and return;
		3671
		3672	# touch it again to show we are up-to-date
		3673	aio_utime $fh, undef, undef;
		3674
		3675	close $fh
		3676	or return;
		3677
		3678	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3679	and return;
		3680
		3681	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3682
		3683	1
		3684	}
		3685
		3686	our $uuid_lock;
		3687	our $uuid_skip;
		3688
		3689	sub write_uuid_sync($) {
		3690	$uuid_skip ||= $_[0];
		3691
		3692	return if $uuid_lock;
		3693	local $uuid_lock = 1;
		3694
		3695	my $uuid = "$LOCALDIR/uuid";
		3696
		3697	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3698	or return;
		3699
		3700	my $value = uuid_seq uuid_cur;
		3701
		3702	unless ($value) {
		3703	warn "cowardly refusing to write zero uuid value!\n";
		3704	return;
		3705	}
		3706
		3707	my $value = uuid_str $value + $uuid_skip;
		3708	$uuid_skip = 0;
		3709
		3710	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3711	and return;
		3712
		3713	# always fsync - this file is important
		3714	aio_fsync $fh
		3715	and return;
		3716
		3717	close $fh
		3718	or return;
		3719
		3720	aio_rename "$uuid~", $uuid
		3721	and return;
		3722
		3723	warn "uuid file written ($value).\n";
		3724
		3725	1
		3726
		3727	}
		3728
		3729	sub write_uuid($$) {
		3730	my ($skip, $sync) = @_;
		3731
		3732	$sync ? write_uuid_sync $skip
		3733	: async { write_uuid_sync $skip };
		3734	}
		3735
		3736	sub emergency_save() {
		3737	my $freeze_guard = cf::freeze_mainloop;
		3738
		3739	warn "emergency_perl_save: enter\n";
		3740
		3741	cf::sync_job {
		3742	# this is a trade-off: we want to be very quick here, so
		3743	# save all maps without fsync, and later call a global sync
		3744	# (which in turn might be very very slow)
		3745	local $USE_FSYNC = 0;
		3746
		3747	# use a peculiar iteration method to avoid tripping on perl
		3748	# refcount bugs in for. also avoids problems with players
		3749	# and maps saved/destroyed asynchronously.
		3750	warn "emergency_perl_save: begin player save\n";
		3751	for my $login (keys %cf::PLAYER) {
		3752	my $pl = $cf::PLAYER{$login} or next;
		3753	$pl->valid or next;
		3754	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3755	$pl->save;
		3756	}
		3757	warn "emergency_perl_save: end player save\n";
		3758
		3759	warn "emergency_perl_save: begin map save\n";
		3760	for my $path (keys %cf::MAP) {
		3761	my $map = $cf::MAP{$path} or next;
		3762	$map->valid or next;
		3763	$map->save;
		3764	}
		3765	warn "emergency_perl_save: end map save\n";
		3766
		3767	warn "emergency_perl_save: begin database checkpoint\n";
		3768	BDB::db_env_txn_checkpoint $DB_ENV;
		3769	warn "emergency_perl_save: end database checkpoint\n";
		3770
		3771	warn "emergency_perl_save: begin write uuid\n";
		3772	write_uuid_sync 1;
		3773	warn "emergency_perl_save: end write uuid\n";
		3774	};
		3775
		3776	warn "emergency_perl_save: starting sync()\n";
		3777	IO::AIO::aio_sync sub {
		3778	warn "emergency_perl_save: finished sync()\n";
		3779	};
		3780
		3781	warn "emergency_perl_save: leave\n";
		3782	}
		3783
		3784	sub post_cleanup {
		3785	my ($make_core) = @_;
		3786
		3787	warn Carp::longmess "post_cleanup backtrace"
		3788	if $make_core;
		3789
		3790	my $fh = pidfile;
		3791	unlink $PIDFILE if <$fh> == $$;
		3792	}
		3793
		3794	# a safer delete_package, copied from Symbol
		3795	sub clear_package($) {
		3796	my $pkg = shift;
		3797
		3798	# expand to full symbol table name if needed
		3799	unless ($pkg =~ /^main::.*::$/) {
		3800	$pkg = "main$pkg" if $pkg =~ /^::/;
		3801	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3802	$pkg .= '::' unless $pkg =~ /::$/;
		3803	}
		3804
		3805	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3806	my $stem_symtab = *{$stem}{HASH};
		3807
		3808	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3809	or return;
		3810
		3811	# clear all symbols
		3812	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3813	for my $name (keys %$leaf_symtab) {
		3814	_gv_clear *{"$pkg$name"};
		3815	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3816	}
		3817	}
		3818
2127	sub reload() {	3819	sub do_reload_perl() {
2128	# can/must only be called in main	3820	# can/must only be called in main
2129	if ($Coro::current != $Coro::main) {	3821	if (in_main) {
2130	warn "can only reload from main coroutine\n";	3822	warn "can only reload from main coroutine";
2131	return;	3823	return;
2132	}	3824	}
2133		3825
		3826	return if $RELOAD++;
		3827
		3828	my $t1 = AE::time;
		3829
		3830	while ($RELOAD) {
2134	warn "reloading...";	3831	warn "reloading...";
2135		3832
2136	my $guard = freeze_mainloop;	3833	warn "entering sync_job";
		3834
		3835	cf::sync_job {
		3836	cf::write_runtime_sync; # external watchdog should not bark
2137	cf::emergency_save;	3837	cf::emergency_save;
		3838	cf::write_runtime_sync; # external watchdog should not bark
2138		3839
2139	eval {	3840	warn "syncing database to disk";
		3841	BDB::db_env_txn_checkpoint $DB_ENV;
		3842
2140	# if anything goes wrong in here, we should simply crash as we already saved	3843	# if anything goes wrong in here, we should simply crash as we already saved
2141		3844
2142	# cancel all watchers	3845	warn "flushing outstanding aio requests";
2143	for (Event::all_watchers) {	3846	while (IO::AIO::nreqs || BDB::nreqs) {
2144	$_->cancel if $_->data & WF_AUTOCANCEL;	3847	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2145	}
2146
2147	# cancel all extension coros
2148	$_->cancel for values %EXT_CORO;
2149	%EXT_CORO = ();
2150
2151	# unload all extensions
2152	for (@exts) {
2153	warn "unloading <$_>";
2154	unload_extension $_;
2155	}
2156
2157	# unload all modules loaded from $LIBDIR
2158	while (my ($k, $v) = each %INC) {
2159	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2160
2161	warn "removing <$k>";
2162	delete $INC{$k};
2163
2164	$k =~ s/\.pm$//;
2165	$k =~ s/\//::/g;
2166
2167	if (my $cb = $k->can ("unload_module")) {
2168	$cb->();
2169	}	3848	}
2170		3849
2171	Symbol::delete_package $k;	3850	warn "cancelling all extension coros";
		3851	$_->cancel for values %EXT_CORO;
		3852	%EXT_CORO = ();
		3853
		3854	warn "removing commands";
		3855	%COMMAND = ();
		3856
		3857	warn "removing ext/exti commands";
		3858	%EXTCMD = ();
		3859	%EXTICMD = ();
		3860
		3861	warn "unloading/nuking all extensions";
		3862	for my $pkg (@EXTS) {
		3863	warn "... unloading $pkg";
		3864
		3865	if (my $cb = $pkg->can ("unload")) {
		3866	eval {
		3867	$cb->($pkg);
		3868	1
		3869	} or warn "$pkg unloaded, but with errors: $@";
		3870	}
		3871
		3872	warn "... clearing $pkg";
		3873	clear_package $pkg;
2172	}	3874	}
2173		3875
2174	# sync database to disk	3876	warn "unloading all perl modules loaded from $LIBDIR";
2175	cf::db_sync;	3877	while (my ($k, $v) = each %INC) {
2176	IO::AIO::flush;	3878	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2177		3879
		3880	warn "... unloading $k";
		3881	delete $INC{$k};
		3882
		3883	$k =~ s/\.pm$//;
		3884	$k =~ s/\//::/g;
		3885
		3886	if (my $cb = $k->can ("unload_module")) {
		3887	$cb->();
		3888	}
		3889
		3890	clear_package $k;
		3891	}
		3892
2178	# get rid of safe::, as good as possible	3893	warn "getting rid of safe::, as good as possible";
2179	Symbol::delete_package "safe::$_"	3894	clear_package "safe::$_"
2180	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3895	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2181		3896
2182	# remove register_script_function callbacks	3897	warn "unloading cf.pm \"a bit\"";
2183	# TODO
2184
2185	# unload cf.pm "a bit"
2186	delete $INC{"cf.pm"};	3898	delete $INC{"cf.pm"};
		3899	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2187		3900
2188	# don't, removes xs symbols, too,	3901	# don't, removes xs symbols, too,
2189	# and global variables created in xs	3902	# and global variables created in xs
2190	#Symbol::delete_package __PACKAGE__;	3903	#clear_package __PACKAGE__;
2191		3904
2192	# reload cf.pm	3905	warn "unload completed, starting to reload now";
		3906
2193	warn "reloading cf.pm";	3907	warn "reloading cf.pm";
2194	require cf;	3908	require cf;
2195	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3909	cf::_connect_to_perl_1;
2196		3910
2197	# load config and database again	3911	warn "loading config and database again";
2198	cf::cfg_load;	3912	cf::reload_config;
2199	cf::db_load;
2200		3913
2201	# load extensions
2202	warn "load extensions";	3914	warn "loading extensions";
2203	cf::load_extensions;	3915	cf::load_extensions;
2204		3916
2205	# reattach attachments to objects	3917	if ($REATTACH_ON_RELOAD) {
2206	warn "reattach";	3918	warn "reattaching attachments to objects/players";
2207	_global_reattach;	3919	_global_reattach; # objects, sockets
		3920	warn "reattaching attachments to maps";
2208	reattach $_ for values %MAP;	3921	reattach $_ for values %MAP;
		3922	warn "reattaching attachments to players";
		3923	reattach $_ for values %PLAYER;
		3924	}
		3925
		3926	warn "running post_init jobs";
		3927	(pop @POST_INIT)->(1) while @POST_INIT;
		3928
		3929	warn "leaving sync_job";
		3930
		3931	1
		3932	} or do {
		3933	warn $@;
		3934	cf::cleanup "error while reloading, exiting.";
		3935	};
		3936
		3937	warn "reloaded";
		3938	--$RELOAD;
		3939	}
		3940
		3941	$t1 = AE::time - $t1;
		3942	warn "reload completed in ${t1}s\n";
		3943	};
		3944
		3945	our $RELOAD_WATCHER; # used only during reload
		3946
		3947	sub reload_perl() {
		3948	# doing reload synchronously and two reloads happen back-to-back,
		3949	# coro crashes during coro_state_free->destroy here.
		3950
		3951	$RELOAD_WATCHER ||= cf::async {
		3952	Coro::AIO::aio_wait cache_extensions;
		3953
		3954	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3955	do_reload_perl;
		3956	undef $RELOAD_WATCHER;
		3957	};
2209	};	3958	};
2210
2211	if ($@) {
2212	warn $@;
2213	warn "error while reloading, exiting.";
2214	exit 1;
2215	}
2216
2217	warn "reloaded successfully";
2218	};
2219
2220	#############################################################################
2221
2222	unless ($LINK_MAP) {
2223	$LINK_MAP = cf::map::new;
2224
2225	$LINK_MAP->width (41);
2226	$LINK_MAP->height (41);
2227	$LINK_MAP->alloc;
2228	$LINK_MAP->path ("{link}");
2229	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2230	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2231
2232	# dirty hack because... archetypes are not yet loaded
2233	Event->timer (
2234	after => 10,
2235	cb => sub {
2236	$_[0]->w->cancel;
2237
2238	# provide some exits "home"
2239	my $exit = cf::object::new "exit";
2240
2241	$exit->slaying ($EMERGENCY_POSITION->[0]);
2242	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2243	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2244
2245	$LINK_MAP->insert ($exit->clone, 19, 19);
2246	$LINK_MAP->insert ($exit->clone, 19, 20);
2247	$LINK_MAP->insert ($exit->clone, 19, 21);
2248	$LINK_MAP->insert ($exit->clone, 20, 19);
2249	$LINK_MAP->insert ($exit->clone, 20, 21);
2250	$LINK_MAP->insert ($exit->clone, 21, 19);
2251	$LINK_MAP->insert ($exit->clone, 21, 20);
2252	$LINK_MAP->insert ($exit->clone, 21, 21);
2253
2254	$exit->destroy;
2255	});
2256
2257	$LINK_MAP->{deny_save} = 1;
2258	$LINK_MAP->{deny_reset} = 1;
2259
2260	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2261	}	3959	}
2262
2263	register "<global>", __PACKAGE__;
2264		3960
2265	register_command "reload" => sub {	3961	register_command "reload" => sub {
2266	my ($who, $arg) = @_;	3962	my ($who, $arg) = @_;
2267		3963
2268	if ($who->flag (FLAG_WIZ)) {	3964	if ($who->flag (FLAG_WIZ)) {
2269	$who->message ("start of reload.");
2270	reload;
2271	$who->message ("end of reload.");	3965	$who->message ("reloading server.");
		3966	async {
		3967	$Coro::current->{desc} = "perl_reload";
		3968	reload_perl;
		3969	};
2272	}	3970	}
2273	};	3971	};
2274		3972
2275	unshift @INC, $LIBDIR;	3973	unshift @INC, $LIBDIR;
2276		3974
2277	$TICK_WATCHER = Event->timer (	3975	my $bug_warning = 0;
2278	reentrant => 0,	3976
2279	prio => 0,	3977	our @WAIT_FOR_TICK;
2280	at => $NEXT_TICK || $TICK,	3978	our @WAIT_FOR_TICK_BEGIN;
2281	data => WF_AUTOCANCEL,	3979
2282	cb => sub {	3980	sub wait_for_tick {
		3981	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3982
		3983	my $signal = new Coro::Signal;
		3984	push @WAIT_FOR_TICK, $signal;
		3985	$signal->wait;
		3986	}
		3987
		3988	sub wait_for_tick_begin {
		3989	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3990
		3991	my $signal = new Coro::Signal;
		3992	push @WAIT_FOR_TICK_BEGIN, $signal;
		3993	$signal->wait;
		3994	}
		3995
		3996	sub tick {
		3997	if ($Coro::current != $Coro::main) {
		3998	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3999	unless ++$bug_warning > 10;
		4000	return;
		4001	}
		4002
2283	cf::server_tick; # one server iteration	4003	cf::server_tick; # one server iteration
2284	$RUNTIME += $TICK;
2285	$NEXT_TICK += $TICK;
2286		4004
2287	# if we are delayed by four ticks or more, skip them all	4005	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2288	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2289		4006
2290	$TICK_WATCHER->at ($NEXT_TICK);	4007	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2291	$TICK_WATCHER->start;	4008	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2292	},	4009	Coro::async_pool {
2293	);	4010	$Coro::current->{desc} = "runtime saver";
2294
2295	IO::AIO::max_poll_time $TICK * 0.2;
2296
2297	Event->io (
2298	fd => IO::AIO::poll_fileno,
2299	poll => 'r',
2300	prio => 5,
2301	data => WF_AUTOCANCEL,
2302	cb => \&IO::AIO::poll_cb,
2303	);
2304
2305	Event->timer (
2306	data => WF_AUTOCANCEL,
2307	after => 0,
2308	interval => 10,
2309	cb => sub {
2310	(Coro::unblock_sub {
2311	write_runtime	4011	write_runtime_sync
2312	or warn "ERROR: unable to write runtime file: $!";	4012	or warn "ERROR: unable to write runtime file: $!";
2313	})->();	4013	};
2314	},	4014	}
2315	);	4015
		4016	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4017	$sig->send;
		4018	}
		4019	while (my $sig = shift @WAIT_FOR_TICK) {
		4020	$sig->send;
		4021	}
		4022
		4023	$LOAD = ($NOW - $TICK_START) / $TICK;
		4024	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4025
		4026	if (0) {
		4027	if ($NEXT_TICK) {
		4028	my $jitter = $TICK_START - $NEXT_TICK;
		4029	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4030	warn "jitter $JITTER\n";#d#
		4031	}
		4032	}
		4033	}
		4034
		4035	{
		4036	# configure BDB
		4037
		4038	BDB::min_parallel 16;
		4039	BDB::max_poll_reqs $TICK * 0.1;
		4040	$AnyEvent::BDB::WATCHER->priority (1);
		4041
		4042	unless ($DB_ENV) {
		4043	$DB_ENV = BDB::db_env_create;
		4044	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4045	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4046	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4047	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4048	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4049
		4050	cf::sync_job {
		4051	eval {
		4052	BDB::db_env_open
		4053	$DB_ENV,
		4054	$BDBDIR,
		4055	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4056	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4057	0666;
		4058
		4059	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4060	};
		4061
		4062	cf::cleanup "db_env_open(db): $@" if $@;
		4063	};
		4064	}
		4065
		4066	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4067	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4068	};
		4069	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4070	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4071	};
		4072	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4073	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4074	};
		4075	}
		4076
		4077	{
		4078	# configure IO::AIO
		4079
		4080	IO::AIO::min_parallel 8;
		4081	IO::AIO::max_poll_time $TICK * 0.1;
		4082	undef $AnyEvent::AIO::WATCHER;
		4083	}
		4084
		4085	my $_log_backtrace;
		4086
		4087	sub _log_backtrace {
		4088	my ($msg, @addr) = @_;
		4089
		4090	$msg =~ s/\n//;
		4091
		4092	# limit the # of concurrent backtraces
		4093	if ($_log_backtrace < 2) {
		4094	++$_log_backtrace;
		4095	my $perl_bt = Carp::longmess $msg;
		4096	async {
		4097	$Coro::current->{desc} = "abt $msg";
		4098
		4099	my @bt = fork_call {
		4100	@addr = map { sprintf "%x", $_ } @addr;
		4101	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4102	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4103	or die "addr2line: $!";
		4104
		4105	my @funcs;
		4106	my @res = <$fh>;
		4107	chomp for @res;
		4108	while (@res) {
		4109	my ($func, $line) = splice @res, 0, 2, ();
		4110	push @funcs, "[$func] $line";
		4111	}
		4112
		4113	@funcs
		4114	};
		4115
		4116	LOG llevInfo, "[ABT] $perl_bt\n";
		4117	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4118	LOG llevInfo, "[ABT] $_\n" for @bt;
		4119	--$_log_backtrace;
		4120	};
		4121	} else {
		4122	LOG llevInfo, "[ABT] $msg\n";
		4123	LOG llevInfo, "[ABT] [suppressed]\n";
		4124	}
		4125	}
		4126
		4127	# load additional modules
		4128	require "cf/$_.pm" for @EXTRA_MODULES;
		4129	cf::_connect_to_perl_2;
2316		4130
2317	END { cf::emergency_save }	4131	END { cf::emergency_save }
2318		4132
2319	1	4133	1
2320		4134

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