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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.251 by root, Wed Apr 18 14:45:13 2007 UTC vs.
Revision 1.522 by root, Sat Apr 17 02:22:14 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 Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
		96
		97	our $CONFDIR = confdir;
		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 = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
60		115
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	118	our $NEXT_TICK;
66	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
68		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
69	our $BDB_POLL_WATCHER;	123	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
71		127
72	our %CFG;	128	our %CFG;
73		129
74	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
76		133
77	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		137
83	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
		150
86	binmode STDOUT;	151	binmode STDOUT;
87	binmode STDERR;	152	binmode STDERR;
88		153
89	# read virtual server time, if available	154	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	156	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
94	}	159	}
95		160
96	mkdir cf::localdir;	161	eval "sub TICK() { $TICK } 1" or die;
97	mkdir cf::localdir . "/" . cf::playerdir;	162
98	mkdir cf::localdir . "/" . cf::tmpdir;	163	mkdir $_
99	mkdir cf::localdir . "/" . cf::uniquedir;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		165
103	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
104		167
105	sub cf::map::normalise;	168	sub cf::map::normalise;
		169
		170	sub in_main() {
		171	$Coro::current == $Coro::main
		172	}
		173
		174	#############################################################################
		175
		176	%REFLECT = ();
		177	for (@REFLECT) {
		178	my $reflect = JSON::XS::decode_json $_;
		179	$REFLECT{$reflect->{class}} = $reflect;
		180	}
		181
		182	# this is decidedly evil
		183	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
106		184
107	#############################################################################	185	#############################################################################
108		186
109	=head2 GLOBAL VARIABLES	187	=head2 GLOBAL VARIABLES
110		188
…		…
117	=item $cf::RUNTIME	195	=item $cf::RUNTIME
118		196
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	197	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	198	every server tick.
121		199
122	=item $cf::LIBDIR	200	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		201	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		202	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		203
124	The perl library directory, where extensions and cf-specific modules can	204	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	205	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		206	unique-items directory, player file directory, random maps directory and
		207	database environment.
126		208
127	=item $cf::NOW	209	=item $cf::NOW
128		210
129	The time of the last (current) server tick.	211	The time of the last (current) server tick.
130		212
131	=item $cf::TICK	213	=item $cf::TICK
132		214
133	The interval between server ticks, in seconds.	215	The interval between server ticks, in seconds.
134		216
		217	=item $cf::LOADAVG
		218
		219	The current CPU load on the server (alpha-smoothed), as a value between 0
		220	(none) and 1 (overloaded), indicating how much time is spent on processing
		221	objects per tick. Healthy values are < 0.5.
		222
		223	=item $cf::LOAD
		224
		225	The raw value load value from the last tick.
		226
135	=item %cf::CFG	227	=item %cf::CFG
136		228
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	229	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	230	from wherever your confdir points to.
139		231
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	232	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		233
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	234	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
143	returns directly I<after> the tick processing (and consequently, can only wake one process	235	returns directly I<after> the tick processing (and consequently, can only wake one process
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	236	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		237
		238	=item @cf::INVOKE_RESULTS
		239
		240	This array contains the results of the last C<invoke ()> call. When
		241	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		242	that call.
		243
		244	=item %cf::REFLECT
		245
		246	Contains, for each (C++) class name, a hash reference with information
		247	about object members (methods, scalars, arrays and flags) and other
		248	metadata, which is useful for introspection.
		249
146	=back	250	=back
147		251
148	=cut	252	=cut
149		253
150	BEGIN {	254	$Coro::State::WARNHOOK = sub {
151	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	255	my $msg = join "", @_;
153		256
154	$msg .= "\n"	257	$msg .= "\n"
155	unless $msg =~ /\n$/;	258	unless $msg =~ /\n$/;
156		259
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	260	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		261
159	utf8::encode $msg;
160	LOG llevError, $msg;	262	LOG llevError, $msg;
161	};	263	};
162	}	264
		265	$Coro::State::DIEHOOK = sub {
		266	return unless $^S eq 0; # "eq", not "=="
		267
		268	warn Carp::longmess $_[0];
		269
		270	if (in_main) {#d#
		271	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		272	return;#d#
		273	}#d#
		274
		275	# kill coroutine otherwise
		276	Coro::terminate
		277	};
163		278
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	279	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	280	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	281	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	282	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	283	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		284	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	285	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		286
171	# we bless all objects into (empty) derived classes to force a method lookup	287	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	288	# within the Safe compartment.
173	for my $pkg (qw(	289	for my $pkg (qw(
174	cf::global cf::attachable	290	cf::global cf::attachable
175	cf::object cf::object::player	291	cf::object cf::object::player
176	cf::client cf::player	292	cf::client cf::player
177	cf::arch cf::living	293	cf::arch cf::living
		294	cf::map cf::mapspace
178	cf::map cf::party cf::region	295	cf::party cf::region
179	)) {	296	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	297	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	298	}
183		299
184	$Event::DIED = sub {	300	$EV::DIED = sub {
185	warn "error in event callback: @_";	301	Carp::cluck "error in event callback: @_";
186	};	302	};
		303
		304	#############################################################################
187		305
188	=head2 UTILITY FUNCTIONS	306	=head2 UTILITY FUNCTIONS
189		307
190	=over 4	308	=over 4
191		309
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	328	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	329	$d
212	} || "[unable to dump $_[0]: '$@']";	330	} || "[unable to dump $_[0]: '$@']";
213	}	331	}
214		332
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	333	=item $ref = cf::decode_json $json
218		334
219	Converts a JSON string into the corresponding perl data structure.	335	Converts a JSON string into the corresponding perl data structure.
220		336
221	=item $json = cf::to_json $ref	337	=item $json = cf::encode_json $ref
222		338
223	Converts a perl data structure into its JSON representation.	339	Converts a perl data structure into its JSON representation.
224		340
		341	=cut
		342
		343	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		344
		345	sub encode_json($) { $json_coder->encode ($_[0]) }
		346	sub decode_json($) { $json_coder->decode ($_[0]) }
		347
		348	=item cf::post_init { BLOCK }
		349
		350	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		351	but I<before> the server starts ticking again.
		352
		353	The cdoeblock will have a single boolean argument to indicate whether this
		354	is a reload or not.
		355
		356	=cut
		357
		358	sub post_init(&) {
		359	push @POST_INIT, shift;
		360	}
		361
225	=item cf::lock_wait $string	362	=item cf::lock_wait $string
226		363
227	Wait until the given lock is available. See cf::lock_acquire.	364	Wait until the given lock is available. See cf::lock_acquire.
228		365
229	=item my $lock = cf::lock_acquire $string	366	=item my $lock = cf::lock_acquire $string
230		367
231	Wait until the given lock is available and then acquires it and returns	368	Wait until the given lock is available and then acquires it and returns
232	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	369	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
233	for example when the coroutine gets canceled), the lock is automatically	370	for example when the coroutine gets canceled), the lock is automatically
234	returned.	371	returned.
235		372
		373	Locks are *not* recursive, locking from the same coro twice results in a
		374	deadlocked coro.
		375
236	Lock names should begin with a unique identifier (for example, cf::map::find	376	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	377	uses map_find and cf::map::load uses map_load).
238		378
239	=cut	379	=item $locked = cf::lock_active $string
240		380
241	our %LOCK;	381	Return true if the lock is currently active, i.e. somebody has locked it.
		382
		383	=cut
		384
		385	our $LOCKS = new Coro::SemaphoreSet;
242		386
243	sub lock_wait($) {	387	sub lock_wait($) {
244	my ($key) = @_;	388	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	389	}
252		390
253	sub lock_acquire($) {	391	sub lock_acquire($) {
254	my ($key) = @_;	392	$LOCKS->guard ($_[0])
		393	}
255		394
256	# wait, to be sure we are not locked	395	sub lock_active($) {
257	lock_wait $key;	396	$LOCKS->count ($_[0]) < 1
258
259	$LOCK{$key} = [];
260
261	Coro::guard {
262	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };
264	}
265	}	397	}
266		398
267	sub freeze_mainloop {	399	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	400	tick_inhibit_inc;
269		401
270	my $guard = Coro::guard {	402	&Guard::guard (\&tick_inhibit_dec);
271	$TICK_WATCHER->start;	403	}
		404
		405	=item cf::periodic $interval, $cb
		406
		407	Like EV::periodic, but randomly selects a starting point so that the actions
		408	get spread over time.
		409
		410	=cut
		411
		412	sub periodic($$) {
		413	my ($interval, $cb) = @_;
		414
		415	my $start = rand List::Util::min 180, $interval;
		416
		417	EV::periodic $start, $interval, 0, $cb
		418	}
		419
		420	=item cf::get_slot $time[, $priority[, $name]]
		421
		422	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		423	This call blocks and returns only when you have at least C<$time> seconds
		424	of cpu time till the next tick. The slot is only valid till the next cede.
		425
		426	The optional C<$name> can be used to identify the job to run. It might be
		427	used for statistical purposes and should identify the same time-class.
		428
		429	Useful for short background jobs.
		430
		431	=cut
		432
		433	our @SLOT_QUEUE;
		434	our $SLOT_QUEUE;
		435	our $SLOT_DECAY = 0.9;
		436
		437	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		438	$SLOT_QUEUE = Coro::async {
		439	$Coro::current->desc ("timeslot manager");
		440
		441	my $signal = new Coro::Signal;
		442	my $busy;
		443
		444	while () {
		445	next_job:
		446
		447	my $avail = cf::till_tick;
		448
		449	for (0 .. $#SLOT_QUEUE) {
		450	if ($SLOT_QUEUE[$_][0] <= $avail) {
		451	$busy = 0;
		452	my $job = splice @SLOT_QUEUE, $_, 1, ();
		453	$job->[2]->send;
		454	Coro::cede;
		455	goto next_job;
		456	} else {
		457	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		458	}
		459	}
		460
		461	if (@SLOT_QUEUE) {
		462	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		463	push @cf::WAIT_FOR_TICK, $signal;
		464	$signal->wait;
		465	} else {
		466	$busy = 0;
		467	Coro::schedule;
		468	}
272	};	469	}
273	$TICK_WATCHER->stop;	470	};
274	$guard	471
		472	sub get_slot($;$$) {
		473	return if tick_inhibit || $Coro::current == $Coro::main;
		474
		475	my ($time, $pri, $name) = @_;
		476
		477	$time = clamp $time, 0.01, $TICK * .6;
		478
		479	my $sig = new Coro::Signal;
		480
		481	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		482	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		483	$SLOT_QUEUE->ready;
		484	$sig->wait;
275	}	485	}
276		486
277	=item cf::async { BLOCK }	487	=item cf::async { BLOCK }
278		488
279	Currently the same as Coro::async_pool, meaning you cannot use	489	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		494
285	BEGIN { *async = \&Coro::async_pool }	495	BEGIN { *async = \&Coro::async_pool }
286		496
287	=item cf::sync_job { BLOCK }	497	=item cf::sync_job { BLOCK }
288		498
289	The design of crossfire+ requires that the main coro ($Coro::main) is	499	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	500	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	501	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		502	acceptable.
292		503
293	If it must be done, put the blocking parts into C<sync_job>. This will run	504	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	505	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	506	server will be frozen during this time, so the block should either finish
296	fast or be very important.	507	fast or be very important.
…		…
299		510
300	sub sync_job(&) {	511	sub sync_job(&) {
301	my ($job) = @_;	512	my ($job) = @_;
302		513
303	if ($Coro::current == $Coro::main) {	514	if ($Coro::current == $Coro::main) {
		515	my $time = AE::time;
		516
304	# this is the main coro, too bad, we have to block	517	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	518	# till the operation succeeds, freezing the server :/
306		519
307	# TODO: use suspend/resume instead	520	LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	521
309	my $freeze_guard = freeze_mainloop;	522	my $freeze_guard = freeze_mainloop;
310		523
311	my $busy = 1;	524	my $busy = 1;
312	my @res;	525	my @res;
313		526
314	(async {	527	(async {
		528	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	529	@res = eval { $job->() };
316	warn $@ if $@;	530	warn $@ if $@;
317	undef $busy;	531	undef $busy;
318	})->prio (Coro::PRIO_MAX);	532	})->prio (Coro::PRIO_MAX);
319		533
320	while ($busy) {	534	while ($busy) {
321	Coro::cede or Event::one_event;	535	if (Coro::nready) {
		536	Coro::cede_notself;
		537	} else {
		538	EV::loop EV::LOOP_ONESHOT;
322	}	539	}
		540	}
		541
		542	my $time = AE::time - $time;
		543
		544	$TICK_START += $time; # do not account sync jobs to server load
323		545
324	wantarray ? @res : $res[0]	546	wantarray ? @res : $res[0]
325	} else {	547	} else {
326	# we are in another coroutine, how wonderful, everything just works	548	# we are in another coroutine, how wonderful, everything just works
327		549
…		…
347	$EXT_CORO{$coro+0} = $coro;	569	$EXT_CORO{$coro+0} = $coro;
348		570
349	$coro	571	$coro
350	}	572	}
351		573
352	sub write_runtime {	574	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		575
355	my $runtime = cf::localdir . "/runtime";	576	Executes the given code block with the given arguments in a seperate
		577	process, returning the results. Everything must be serialisable with
		578	Coro::Storable. May, of course, block. Note that the executed sub may
		579	never block itself or use any form of event handling.
356		580
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	581	=cut
358	or return;
359		582
360	my $value = $cf::RUNTIME + 90 + 10;	583	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	584	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		585
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	586	# we seemingly have to make a local copy of the whole thing,
365	and return;	587	# otherwise perl prematurely frees the stuff :/
		588	# TODO: investigate and fix (likely this will be rather laborious)
366		589
367	# always fsync - this file is important	590	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	591	reset_signals;
369	and return;	592	&$cb
		593	}, @args;
370		594
371	close $fh	595	wantarray ? @res : $res[-1]
372	or return;	596	}
373		597
374	aio_rename "$runtime~", $runtime	598	sub objinfo {
375	and return;
376
377	1	599	(
		600	"counter value" => cf::object::object_count,
		601	"objects created" => cf::object::create_count,
		602	"objects destroyed" => cf::object::destroy_count,
		603	"freelist size" => cf::object::free_count,
		604	"allocated objects" => cf::object::objects_size,
		605	"active objects" => cf::object::actives_size,
		606	)
		607	}
		608
		609	=item $coin = coin_from_name $name
		610
		611	=cut
		612
		613	our %coin_alias = (
		614	"silver" => "silvercoin",
		615	"silvercoin" => "silvercoin",
		616	"silvercoins" => "silvercoin",
		617	"gold" => "goldcoin",
		618	"goldcoin" => "goldcoin",
		619	"goldcoins" => "goldcoin",
		620	"platinum" => "platinacoin",
		621	"platinumcoin" => "platinacoin",
		622	"platinumcoins" => "platinacoin",
		623	"platina" => "platinacoin",
		624	"platinacoin" => "platinacoin",
		625	"platinacoins" => "platinacoin",
		626	"royalty" => "royalty",
		627	"royalties" => "royalty",
		628	);
		629
		630	sub coin_from_name($) {
		631	$coin_alias{$_[0]}
		632	? cf::arch::find $coin_alias{$_[0]}
		633	: undef
		634	}
		635
		636	=item $value = cf::db_get $family => $key
		637
		638	Returns a single value from the environment database.
		639
		640	=item cf::db_put $family => $key => $value
		641
		642	Stores the given C<$value> in the family. It can currently store binary
		643	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		644
		645	=item $db = cf::db_table "name"
		646
		647	Create and/or open a new database table. The string must not be "db" and must be unique
		648	within each server.
		649
		650	=cut
		651
		652	sub db_table($) {
		653	my ($name) = @_;
		654	my $db = BDB::db_create $DB_ENV;
		655
		656	eval {
		657	$db->set_flags (BDB::CHKSUM);
		658
		659	utf8::encode $name;
		660	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		661	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		662	cf::cleanup "db_open(db): $!" if $!;
		663	};
		664	cf::cleanup "db_open(db): $@" if $@;
		665
		666	$db
		667	}
		668
		669	our $DB;
		670
		671	sub db_init {
		672	cf::sync_job {
		673	$DB ||= db_table "db";
		674	};
		675	}
		676
		677	sub db_get($$) {
		678	my $key = "$_[0]/$_[1]";
		679
		680	cf::sync_job {
		681	BDB::db_get $DB, undef, $key, my $data;
		682
		683	$! ? ()
		684	: $data
		685	}
		686	}
		687
		688	sub db_put($$$) {
		689	BDB::dbreq_pri 4;
		690	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		691	}
		692
		693	=item cf::cache $id => [$paths...], $processversion => $process
		694
		695	Generic caching function that returns the value of the resource $id,
		696	caching and regenerating as required.
		697
		698	This function can block.
		699
		700	=cut
		701
		702	sub cache {
		703	my ($id, $src, $processversion, $process) = @_;
		704
		705	my $meta =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	aio_stat $_
		710	and Carp::croak "$_: $!";
		711
		712	($_, (stat _)[7,9])
		713	} @$src;
		714
		715	my $dbmeta = db_get cache => "$id/meta";
		716	if ($dbmeta ne $meta) {
		717	# changed, we may need to process
		718
		719	my @data;
		720	my $md5;
		721
		722	for (0 .. $#$src) {
		723	0 <= aio_load $src->[$_], $data[$_]
		724	or Carp::croak "$src->[$_]: $!";
		725	}
		726
		727	# if processing is expensive, check
		728	# checksum first
		729	if (1) {
		730	$md5 =
		731	join "\x00",
		732	$processversion,
		733	map {
		734	cf::cede_to_tick;
		735	($src->[$_], Digest::MD5::md5_hex $data[$_])
		736	} 0.. $#$src;
		737
		738
		739	my $dbmd5 = db_get cache => "$id/md5";
		740	if ($dbmd5 eq $md5) {
		741	db_put cache => "$id/meta", $meta;
		742
		743	return db_get cache => "$id/data";
		744	}
		745	}
		746
		747	my $t1 = Time::HiRes::time;
		748	my $data = $process->(\@data);
		749	my $t2 = Time::HiRes::time;
		750
		751	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		752
		753	db_put cache => "$id/data", $data;
		754	db_put cache => "$id/md5" , $md5;
		755	db_put cache => "$id/meta", $meta;
		756
		757	return $data;
		758	}
		759
		760	db_get cache => "$id/data"
378	}	761	}
379		762
380	=item cf::datalog type => key => value, ...	763	=item cf::datalog type => key => value, ...
381		764
382	Log a datalog packet of the given type with the given key-value pairs.	765	Log a datalog packet of the given type with the given key-value pairs.
…		…
394		777
395	#############################################################################	778	#############################################################################
396		779
397	=head2 ATTACHABLE OBJECTS	780	=head2 ATTACHABLE OBJECTS
398		781
399	Many objects in crossfire are so-called attachable objects. That means you can	782	Many objects in deliantra are so-called attachable objects. That means you can
400	attach callbacks/event handlers (a collection of which is called an "attachment")	783	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	784	to it. All such attachable objects support the following methods.
402		785
403	In the following description, CLASS can be any of C<global>, C<object>	786	In the following description, CLASS can be any of C<global>, C<object>
404	C<player>, C<client> or C<map> (i.e. the attachable objects in	787	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	788	Deliantra).
406		789
407	=over 4	790	=over 4
408		791
409	=item $attachable->attach ($attachment, key => $value...)	792	=item $attachable->attach ($attachment, key => $value...)
410		793
…		…
454	=item cf::CLASS::attachment $name, ...	837	=item cf::CLASS::attachment $name, ...
455		838
456	Register an attachment by C<$name> through which attachable objects of the	839	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	840	given CLASS can refer to this attachment.
458		841
459	Some classes such as crossfire maps and objects can specify attachments	842	Some classes such as deliantra maps and objects can specify attachments
460	that are attached at load/instantiate time, thus the need for a name.	843	that are attached at load/instantiate time, thus the need for a name.
461		844
462	These calls expect any number of the following handler/hook descriptions:	845	These calls expect any number of the following handler/hook descriptions:
463		846
464	=over 4	847	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	956	$registry = $CB_TYPE[$object_type] ||= [];
574		957
575	} elsif ($type eq "subtype") {	958	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	959	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	960	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	961	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		962
580	} elsif ($type eq "package") {	963	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	964	my $pkg = shift @arg;
582		965
583	while (my ($name, $id) = each %cb_id) {	966	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	995	_attach $registry, $klass, @attach;
613	}	996	}
614		997
615	$obj->{$name} = \%arg;	998	$obj->{$name} = \%arg;
616	} else {	999	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	1000	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	1001	}
619		1002
620	$obj->{_attachment}{$name} = undef;	1003	$obj->{_attachment}{$name} = undef;
621	}	1004	}
622		1005
…		…
624	if (ref $_[0]) {	1007	if (ref $_[0]) {
625	_object_attach @_;	1008	_object_attach @_;
626	} else {	1009	} else {
627	_attach shift->_attach_registry, @_;	1010	_attach shift->_attach_registry, @_;
628	}	1011	}
		1012	_recalc_want;
629	};	1013	};
630		1014
631	# all those should be optimised	1015	# all those should be optimised
632	sub cf::attachable::detach {	1016	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	1017	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	1020	delete $obj->{_attachment}{$name};
637	reattach ($obj);	1021	reattach ($obj);
638	} else {	1022	} else {
639	Carp::croak "cannot, currently, detach class attachments";	1023	Carp::croak "cannot, currently, detach class attachments";
640	}	1024	}
		1025	_recalc_want;
641	};	1026	};
642		1027
643	sub cf::attachable::attached {	1028	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	1029	my ($obj, $name) = @_;
645		1030
…		…
660	";	1045	";
661	die if $@;	1046	die if $@;
662	}	1047	}
663		1048
664	our $override;	1049	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1050	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		1051
667	sub override {	1052	sub override {
668	$override = 1;	1053	$override = 1;
669	@invoke_results = ();	1054	@INVOKE_RESULTS = (@_);
670	}	1055	}
671		1056
672	sub do_invoke {	1057	sub do_invoke {
673	my $event = shift;	1058	my $event = shift;
674	my $callbacks = shift;	1059	my $callbacks = shift;
675		1060
676	@invoke_results = ();	1061	@INVOKE_RESULTS = ();
677		1062
678	local $override;	1063	local $override;
679		1064
680	for (@$callbacks) {	1065	for (@$callbacks) {
681	eval { &{$_->[1]} };	1066	eval { &{$_->[1]} };
…		…
690	}	1075	}
691		1076
692	0	1077	0
693	}	1078	}
694		1079
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1080	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1081
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1082	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1083
699	Generate an object-specific event with the given arguments.	1084	Generate an object-specific event with the given arguments.
700		1085
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1086	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
702	removed in future versions), and there is no public API to access override	1087	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	1088	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1089
705	=back	1090	=back
706		1091
707	=cut	1092	=cut
708		1093
709	#############################################################################	1094	#############################################################################
710	# object support	1095	# object support
		1096
		1097	sub _object_equal($$);
		1098	sub _object_equal($$) {
		1099	my ($a, $b) = @_;
		1100
		1101	return 0 unless (ref $a) eq (ref $b);
		1102
		1103	if ("HASH" eq ref $a) {
		1104	my @ka = keys %$a;
		1105	my @kb = keys %$b;
		1106
		1107	return 0 if @ka != @kb;
		1108
		1109	for (0 .. $#ka) {
		1110	return 0 unless $ka[$_] eq $kb[$_];
		1111	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1112	}
		1113
		1114	} elsif ("ARRAY" eq ref $a) {
		1115
		1116	return 0 if @$a != @$b;
		1117
		1118	for (0 .. $#$a) {
		1119	return 0 unless _object_equal $a->[$_], $b->[$_];
		1120	}
		1121
		1122	} elsif ($a ne $b) {
		1123	return 0;
		1124	}
		1125
		1126	1
		1127	}
		1128
		1129	our $SLOW_MERGES;#d#
		1130	sub _can_merge {
		1131	my ($ob1, $ob2) = @_;
		1132
		1133	++$SLOW_MERGES;#d#
		1134
		1135	# we do the slow way here
		1136	return _object_equal $ob1, $ob2
		1137	}
711		1138
712	sub reattach {	1139	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1140	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1141	my ($obj) = @_;
715		1142
		1143	# no longer needed after getting rid of delete_package?
716	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1144	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1145
718	my $registry = $obj->registry;	1146	my $registry = $obj->registry;
719		1147
720	@$registry = ();	1148	@$registry = ();
721		1149
…		…
736	cf::attachable->attach (	1164	cf::attachable->attach (
737	prio => -1000000,	1165	prio => -1000000,
738	on_instantiate => sub {	1166	on_instantiate => sub {
739	my ($obj, $data) = @_;	1167	my ($obj, $data) = @_;
740		1168
741	$data = from_json $data;	1169	$data = decode_json $data;
742		1170
743	for (@$data) {	1171	for (@$data) {
744	my ($name, $args) = @$_;	1172	my ($name, $args) = @$_;
745		1173
746	$obj->attach ($name, %{$args || {} });	1174	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1190	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1191	my ($filename, $rdata, $objs) = @_;
764		1192
765	sync_job {	1193	sync_job {
766	if (length $$rdata) {	1194	if (length $$rdata) {
		1195	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1196	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1197	$decname, length $$rdata, scalar @$objs;
769		1198
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1199	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1200	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1201	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1202	if ($cf::USE_FSYNC) {
		1203	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;
		1204	aio_fsync $fh;
		1205	}
774	close $fh;	1206	aio_close $fh;
775		1207
776	if (@$objs) {	1208	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1209	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1210	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1211	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1212	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1213	if ($cf::USE_FSYNC) {
		1214	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;
		1215	aio_fsync $fh;
		1216	}
782	close $fh;	1217	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1218	aio_rename "$filename.pst~", "$filename.pst";
784	}	1219	}
785	} else {	1220	} else {
786	aio_unlink "$filename.pst";	1221	aio_unlink "$filename.pst";
787	}	1222	}
788		1223
789	aio_rename "$filename~", $filename;	1224	aio_rename "$filename~", $filename;
		1225
		1226	$filename =~ s%/[^/]+$%%;
		1227	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1228	} else {
791	warn "FATAL: $filename~: $!\n";	1229	warn "unable to save objects: $filename~: $!\n";
792	}	1230	}
793	} else {	1231	} else {
794	aio_unlink $filename;	1232	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1233	aio_unlink "$filename.pst";
796	}	1234	}
797	}	1235	};
798	}	1236	}
799		1237
800	sub object_freezer_as_string {	1238	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1239	my ($rdata, $objs) = @_;
802		1240
…		…
814	or return;	1252	or return;
815		1253
816	unless (aio_stat "$filename.pst") {	1254	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1255	(aio_load "$filename.pst", $av) >= 0
818	or return;	1256	or return;
		1257
819	$av = eval { (Storable::thaw $av)->{objs} };	1258	my $st = eval { Coro::Storable::thaw $av };
		1259	$av = $st->{objs};
820	}	1260	}
821		1261
		1262	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1263	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1264	$decname, length $data, scalar @{$av || []};
		1265
824	return ($data, $av);	1266	($data, $av)
825	}	1267	}
		1268
		1269	=head2 COMMAND CALLBACKS
		1270
		1271	=over 4
		1272
		1273	=cut
826		1274
827	#############################################################################	1275	#############################################################################
828	# command handling &c	1276	# command handling &c
829		1277
830	=item cf::register_command $name => \&callback($ob,$args);	1278	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1291	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1292	}
845		1293
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1294	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1295
848	Register a callbackf ro execution when the client sends an extcmd packet.	1296	Register a callback for execution when the client sends an (synchronous)
		1297	extcmd packet. Ext commands will be processed in the order they are
		1298	received by the server, like other user commands. The first argument is
		1299	the logged-in player. Ext commands can only be processed after a player
		1300	has logged in successfully.
849		1301
850	If the callback returns something, it is sent back as if reply was being	1302	If the callback returns something, it is sent back as if reply was being
851	called.	1303	called.
852		1304
		1305	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1306
		1307	Register a callback for execution when the client sends an (asynchronous)
		1308	exticmd packet. Exti commands are processed by the server as soon as they
		1309	are received, i.e. out of order w.r.t. other commands. The first argument
		1310	is a client socket. Exti commands can be received anytime, even before
		1311	log-in.
		1312
		1313	If the callback returns something, it is sent back as if reply was being
		1314	called.
		1315
853	=cut	1316	=cut
854		1317
855	sub register_extcmd {	1318	sub register_extcmd {
856	my ($name, $cb) = @_;	1319	my ($name, $cb) = @_;
857		1320
858	$EXTCMD{$name} = $cb;	1321	$EXTCMD{$name} = $cb;
859	}	1322	}
860		1323
		1324	sub register_exticmd {
		1325	my ($name, $cb) = @_;
		1326
		1327	$EXTICMD{$name} = $cb;
		1328	}
		1329
		1330	use File::Glob ();
		1331
861	cf::player->attach (	1332	cf::player->attach (
862	on_command => sub {	1333	on_unknown_command => sub {
863	my ($pl, $name, $params) = @_;	1334	my ($pl, $name, $params) = @_;
864		1335
865	my $cb = $COMMAND{$name}	1336	my $cb = $COMMAND{$name}
866	or return;	1337	or return;
867		1338
…		…
872	cf::override;	1343	cf::override;
873	},	1344	},
874	on_extcmd => sub {	1345	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1346	my ($pl, $buf) = @_;
876		1347
877	my $msg = eval { from_json $buf };	1348	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1349
879	if (ref $msg) {	1350	if (ref $msg) {
		1351	my ($type, $reply, @payload) =
		1352	"ARRAY" eq ref $msg
		1353	? @$msg
		1354	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1355
		1356	my @reply;
		1357
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1358	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1359	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1360	}
		1361
		1362	$pl->ext_reply ($reply, @reply)
		1363	if $reply;
		1364
885	} else {	1365	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1366	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1367	}
888		1368
889	cf::override;	1369	cf::override;
890	},	1370	},
891	);	1371	);
892		1372
		1373	# "readahead" all extensions
893	sub load_extension {	1374	sub cache_extensions {
894	my ($path) = @_;	1375	my $grp = IO::AIO::aio_group;
895		1376
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1377	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1378	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1379	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}	1380	}
921	die $@;
922	}	1381	};
923		1382
924	push @EXTS, $pkg;	1383	$grp
925	}	1384	}
926		1385
927	sub load_extensions {	1386	sub load_extensions {
		1387	cf::sync_job {
		1388	my %todo;
		1389
928	for my $ext (<$LIBDIR/*.ext>) {	1390	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1391	next unless -r $path;
930	eval {	1392
931	load_extension $ext;	1393	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1394	my $base = $1;
		1395	my $pkg = $1;
		1396	$pkg =~ s/[^[:word:]]/_/g;
		1397	$pkg = "ext::$pkg";
		1398
		1399	open my $fh, "<:utf8", $path
		1400	or die "$path: $!";
		1401
		1402	my $source = do { local $/; <$fh> };
		1403
		1404	my %ext = (
		1405	path => $path,
		1406	base => $base,
		1407	pkg => $pkg,
		1408	);
		1409
		1410	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1411	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1412
		1413	$ext{source} =
		1414	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1415	. "#line 1 \"$path\"\n{\n"
		1416	. $source
		1417	. "\n};\n1";
		1418
		1419	$todo{$base} = \%ext;
		1420	}
		1421
		1422	my $pass = 0;
		1423	my %done;
		1424	while (%todo) {
		1425	my $progress;
		1426
		1427	++$pass;
		1428
		1429	ext:
		1430	while (my ($k, $v) = each %todo) {
		1431	for (split /,\s*/, $v->{meta}{depends}) {
		1432	next ext
		1433	unless exists $done{$_};
		1434	}
		1435
		1436	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1437
		1438	my $active = eval $v->{source};
		1439
		1440	if (length $@) {
		1441	warn "$v->{path}: $@\n";
		1442
		1443	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1444	if exists $v->{meta}{mandatory};
		1445
		1446	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1447	delete $todo{$k};
		1448	} else {
		1449	$done{$k} = delete $todo{$k};
		1450	push @EXTS, $v->{pkg};
		1451	$progress = 1;
		1452
		1453	warn "$v->{base}: extension inactive.\n"
		1454	unless $active;
		1455	}
932	1	1456	}
933	} or warn "$ext not loaded: $@";	1457
		1458	unless ($progress) {
		1459	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1460
		1461	while (my ($k, $v) = each %todo) {
		1462	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1463	if exists $v->{meta}{mandatory};
		1464	}
		1465	}
		1466	}
934	}	1467	};
935	}	1468	}
936		1469
937	#############################################################################	1470	#############################################################################
938		1471
		1472	=back
		1473
939	=head2 CORE EXTENSIONS	1474	=head2 CORE EXTENSIONS
940		1475
941	Functions and methods that extend core crossfire objects.	1476	Functions and methods that extend core deliantra objects.
942		1477
943	=cut	1478	=cut
944		1479
945	package cf::player;	1480	package cf::player;
946		1481
…		…
948		1483
949	=head3 cf::player	1484	=head3 cf::player
950		1485
951	=over 4	1486	=over 4
952		1487
		1488	=item cf::player::num_playing
		1489
		1490	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1491
		1492	=cut
		1493
		1494	sub num_playing {
		1495	scalar grep
		1496	$_->ob->map
		1497	&& !$_->hidden
		1498	&& !$_->ob->flag (cf::FLAG_WIZ),
		1499	cf::player::list
		1500	}
		1501
953	=item cf::player::find $login	1502	=item cf::player::find $login
954		1503
955	Returns the given player object, loading it if necessary (might block).	1504	Returns the given player object, loading it if necessary (might block).
956		1505
957	=cut	1506	=cut
958		1507
959	sub playerdir($) {	1508	sub playerdir($) {
960	cf::localdir	1509	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1510	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1511	}
966		1512
967	sub path($) {	1513	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1514	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1524
979	sub exists($) {	1525	sub exists($) {
980	my ($login) = @_;	1526	my ($login) = @_;
981		1527
982	$cf::PLAYER{$login}	1528	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1529	or !aio_stat path $login
984	}	1530	}
985		1531
986	sub find($) {	1532	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1533	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1534	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1541	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1542	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1543	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1544	aio_unlink +(playerdir $login) . "/$login.pl";
999		1545
1000	my $pl = load_pl path $login	1546	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1547	or return;
		1548
		1549	my $pl = cf::player::load_pl $f
		1550	or return;
		1551
		1552	local $cf::PLAYER_LOADING{$login} = $pl;
		1553	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1554	$cf::PLAYER{$login} = $pl
1003	}	1555	}
1004	}	1556	}
1005	}	1557	}
		1558
		1559	cf::player->attach (
		1560	on_load => sub {
		1561	my ($pl, $path) = @_;
		1562
		1563	# restore slots saved in save, below
		1564	my $slots = delete $pl->{_slots};
		1565
		1566	$pl->ob->current_weapon ($slots->[0]);
		1567	$pl->combat_ob ($slots->[1]);
		1568	$pl->ranged_ob ($slots->[2]);
		1569	},
		1570	);
1006		1571
1007	sub save($) {	1572	sub save($) {
1008	my ($pl) = @_;	1573	my ($pl) = @_;
1009		1574
1010	return if $pl->{deny_save};	1575	return if $pl->{deny_save};
…		…
1015	return if $pl->{deny_save};	1580	return if $pl->{deny_save};
1016		1581
1017	aio_mkdir playerdir $pl, 0770;	1582	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1583	$pl->{last_save} = $cf::RUNTIME;
1019		1584
		1585	cf::get_slot 0.01;
		1586
		1587	# save slots, to be restored later
		1588	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1589
1020	$pl->save_pl ($path);	1590	$pl->save_pl ($path);
1021	Coro::cede;	1591	cf::cede_to_tick;
1022	}	1592	}
1023		1593
1024	sub new($) {	1594	sub new($) {
1025	my ($login) = @_;	1595	my ($login) = @_;
1026		1596
…		…
1032	$cf::PLAYER{$login} = $self;	1602	$cf::PLAYER{$login} = $self;
1033		1603
1034	$self	1604	$self
1035	}	1605	}
1036		1606
		1607	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1608
		1609	=cut
		1610
		1611	sub send_msg {
		1612	my $ns = shift->ns
		1613	or return;
		1614	$ns->send_msg (@_);
		1615	}
		1616
1037	=item $pl->quit_character	1617	=item $pl->quit_character
1038		1618
1039	Nukes the player without looking back. If logged in, the connection will	1619	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1620	be destroyed. May block for a long time.
1041		1621
…		…
1045	my ($pl) = @_;	1625	my ($pl) = @_;
1046		1626
1047	my $name = $pl->ob->name;	1627	my $name = $pl->ob->name;
1048		1628
1049	$pl->{deny_save} = 1;	1629	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1630	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1631
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1632	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1633	$pl->deactivate;
		1634	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1635	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1636	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1637	$pl->ns->destroy if $pl->ns;
1056		1638
1057	my $path = playerdir $pl;	1639	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1640	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1670	while and may block, so not sync_job-capable, ever.
1089		1671
1090	=cut	1672	=cut
1091		1673
1092	sub list_logins {	1674	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1675	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1676	or return [];
1095		1677
1096	my @logins;	1678	my @logins;
1097		1679
1098	for my $login (@$dirs) {	1680	for my $login (@$dirs) {
		1681	my $path = path $login;
		1682
		1683	# a .pst is a dead give-away for a valid player
		1684	# if no pst file found, open and chekc for blocked users
		1685	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1686	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1687	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1688	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1689	}
1102		1690
1103	utf8::decode $login;	1691	utf8::decode $login;
1104	push @logins, $login;	1692	push @logins, $login;
1105	}	1693	}
1106		1694
…		…
1133	}	1721	}
1134		1722
1135	\@paths	1723	\@paths
1136	}	1724	}
1137		1725
		1726	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1727
		1728	Expand deliantra pod fragments into protocol xml.
		1729
1138	=item $player->ext_reply ($msgid, %msg)	1730	=item $player->ext_reply ($msgid, @msg)
1139		1731
1140	Sends an ext reply to the player.	1732	Sends an ext reply to the player.
1141		1733
1142	=cut	1734	=cut
1143		1735
1144	sub ext_reply($$%) {	1736	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1737	my ($self, $id, @msg) = @_;
1146		1738
1147	$msg{msgid} = $id;	1739	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1740	}
1151		1741
1152	=item $player->ext_event ($type, %msg)	1742	=item $player->ext_msg ($type, @msg)
1153		1743
1154	Sends an ext event to the client.	1744	Sends an ext event to the client.
1155		1745
1156	=cut	1746	=cut
1157		1747
1158	sub ext_event($$%) {	1748	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1749	my ($self, $type, @msg) = @_;
1160		1750
1161	$self->ns->ext_event ($type, %msg);	1751	$self->ns->ext_msg ($type, @msg);
1162	}	1752	}
1163		1753
1164	=head3 cf::region	1754	=head3 cf::region
1165		1755
1166	=over 4	1756	=over 4
…		…
1169		1759
1170	package cf::region;	1760	package cf::region;
1171		1761
1172	=item cf::region::find_by_path $path	1762	=item cf::region::find_by_path $path
1173		1763
1174	Tries to decuce the probable region for a map knowing only its path.	1764	Tries to decuce the likely region for a map knowing only its path.
1175		1765
1176	=cut	1766	=cut
1177		1767
1178	sub find_by_path($) {	1768	sub find_by_path($) {
1179	my ($path) = @_;	1769	my ($path) = @_;
1180		1770
1181	my ($match, $specificity);	1771	my ($match, $specificity);
1182		1772
1183	for my $region (list) {	1773	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1774	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1775	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1776	if $region->specificity > $specificity;
1187	}	1777	}
1188	}	1778	}
1189		1779
…		…
1210	our $MAX_RESET = 3600;	1800	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1801	our $DEFAULT_RESET = 3000;
1212		1802
1213	sub generate_random_map {	1803	sub generate_random_map {
1214	my ($self, $rmp) = @_;	1804	my ($self, $rmp) = @_;
		1805
		1806	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1807
1215	# mit "rum" bekleckern, nicht	1808	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1809	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1810	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1811	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1812	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1220	$rmp->{exit_on_final_map},	1813	$rmp->{exit_on_final_map},
1221	$rmp->{xsize}, $rmp->{ysize},	1814	$rmp->{xsize}, $rmp->{ysize},
1222	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1815	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1223	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1816	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1253	my ($self, $merge) = @_;	1846	my ($self, $merge) = @_;
1254		1847
1255	# we have to keep some variables in memory intact	1848	# we have to keep some variables in memory intact
1256	local $self->{path};	1849	local $self->{path};
1257	local $self->{load_path};	1850	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1851
1261	$self->SUPER::thawer_merge ($merge);	1852	$self->SUPER::thawer_merge ($merge);
1262	}	1853	}
1263		1854
1264	sub normalise {	1855	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1902	$self->init; # pass $1 etc.
1312	return $self;	1903	return $self;
1313	}	1904	}
1314	}	1905	}
1315		1906
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1907	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1908	()
1318	}	1909	}
1319		1910
1320	sub init {	1911	sub init {
1321	my ($self) = @_;	1912	my ($self) = @_;
…		…
1336		1927
1337	# the original (read-only) location	1928	# the original (read-only) location
1338	sub load_path {	1929	sub load_path {
1339	my ($self) = @_;	1930	my ($self) = @_;
1340		1931
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1932	"$MAPDIR/$self->{path}.map"
1342	}	1933	}
1343		1934
1344	# the temporary/swap location	1935	# the temporary/swap location
1345	sub save_path {	1936	sub save_path {
1346	my ($self) = @_;	1937	my ($self) = @_;
1347		1938
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1939	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1940	"$TMPDIR/$path.map"
1350	}	1941	}
1351		1942
1352	# the unique path, undef == no special unique path	1943	# the unique path, undef == no special unique path
1353	sub uniq_path {	1944	sub uniq_path {
1354	my ($self) = @_;	1945	my ($self) = @_;
1355		1946
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1947	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1948	"$UNIQUEDIR/$path"
1358	}	1949	}
1359		1950
1360	# and all this just because we cannot iterate over	1951	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	1952	my ($self) = @_;
1364		1953
1365	$_->change_map_light ($change)	1954	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	1955
		1956	$self->do_decay_objects;
1367	}	1957	}
1368		1958
1369	sub unlink_save {	1959	sub unlink_save {
1370	my ($self) = @_;	1960	my ($self) = @_;
1371		1961
…		…
1376		1966
1377	sub load_header_from($) {	1967	sub load_header_from($) {
1378	my ($self, $path) = @_;	1968	my ($self, $path) = @_;
1379		1969
1380	utf8::encode $path;	1970	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1971	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1972	or return;
		1973
		1974	$self->_load_header ($f)
		1975	or return;
		1976
		1977	local $MAP_LOADING{$self->{path}} = $self;
		1978	$f->resolve_delayed_derefs;
1386		1979
1387	$self->{load_path} = $path;	1980	$self->{load_path} = $path;
1388		1981
1389	1	1982	1
1390	}	1983	}
…		…
1429	$self->load_header_orig	2022	$self->load_header_orig
1430	or return;	2023	or return;
1431	$self->prepare_orig;	2024	$self->prepare_orig;
1432	}	2025	}
1433		2026
		2027	$self->{deny_reset} = 1
		2028	if $self->no_reset;
		2029
1434	$self->default_region (cf::region::find_by_path $self->{path})	2030	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	2031	unless $self->default_region;
1436		2032
1437	1	2033	1
1438	}	2034	}
…		…
1441	sub find {	2037	sub find {
1442	my ($path, $origin) = @_;	2038	my ($path, $origin) = @_;
1443		2039
1444	$path = normalise $path, $origin && $origin->path;	2040	$path = normalise $path, $origin && $origin->path;
1445		2041
		2042	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	2043	my $guard2 = cf::lock_acquire "map_find:$path";
1447		2044
1448	$cf::MAP{$path} || do {	2045	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	2046	my $map = new_from_path cf::map $path
1451	or return;	2047	or return;
1452		2048
1453	$map->{last_save} = $cf::RUNTIME;	2049	$map->{last_save} = $cf::RUNTIME;
1454		2050
1455	$map->load_header	2051	$map->load_header
1456	or return;	2052	or return;
1457		2053
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2054	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	2055	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	2056	#$cf::WAIT_FOR_TICK->wait;
		2057	undef $guard2;
		2058	undef $guard1;
1461	$map->reset;	2059	$map->reset;
1462	undef $guard;
1463	return find $path;	2060	return find $path;
1464	}	2061	}
1465		2062
1466	$cf::MAP{$path} = $map	2063	$cf::MAP{$path} = $map
1467	}	2064	}
1468	}	2065	}
1469		2066
1470	sub pre_load { }	2067	sub pre_load { }
1471	sub post_load { }	2068	#sub post_load { } # XS
1472		2069
1473	sub load {	2070	sub load {
1474	my ($self) = @_;	2071	my ($self) = @_;
1475		2072
1476	local $self->{deny_reset} = 1; # loading can take a long time	2073	local $self->{deny_reset} = 1; # loading can take a long time
1477		2074
1478	my $path = $self->{path};	2075	my $path = $self->{path};
		2076
		2077	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2078	my $guard = cf::lock_acquire "map_data:$path";
1480		2079
		2080	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2081	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2082
1483	$self->in_memory (cf::MAP_LOADING);	2083	$self->in_memory (cf::MAP_LOADING);
1484		2084
1485	$self->alloc;	2085	$self->alloc;
1486		2086
1487	$self->pre_load;	2087	$self->pre_load;
1488	Coro::cede;	2088	cf::cede_to_tick;
1489		2089
1490	$self->_load_objects ($self->{load_path}, 1)	2090	my $f = new_from_file cf::object::thawer $self->{load_path};
		2091	$f->skip_block;
		2092	$self->_load_objects ($f)
1491	or return;	2093	or return;
1492		2094
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2095	$self->post_load_original
1494	if delete $self->{load_original};	2096	if delete $self->{load_original};
1495		2097
1496	if (my $uniq = $self->uniq_path) {	2098	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2099	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2100	unless (aio_stat $uniq) {
		2101	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2102	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2103	$self->_load_objects ($f);
		2104	$f->resolve_delayed_derefs;
		2105	}
1501	}	2106	}
1502	}	2107	}
1503		2108
1504	Coro::cede;	2109	$f->resolve_delayed_derefs;
		2110
		2111	cf::cede_to_tick;
1505	# now do the right thing for maps	2112	# now do the right thing for maps
1506	$self->link_multipart_objects;	2113	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	2114	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2115	unless $self->difficulty;
1517	Coro::cede;	2116	cf::cede_to_tick;
		2117
		2118	unless ($self->{deny_activate}) {
		2119	$self->decay_objects;
		2120	$self->fix_auto_apply;
		2121	$self->update_buttons;
		2122	cf::cede_to_tick;
1518	$self->activate;	2123	$self->activate;
1519	Coro::cede;	2124	}
		2125
		2126	$self->{last_save} = $cf::RUNTIME;
		2127	$self->last_access ($cf::RUNTIME);
		2128
		2129	$self->in_memory (cf::MAP_ACTIVE);
1520	}	2130	}
1521		2131
1522	$self->post_load;	2132	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	2133	}
1527		2134
		2135	# customize the map for a given player, i.e.
		2136	# return the _real_ map. used by e.g. per-player
		2137	# maps to change the path to ~playername/mappath
1528	sub customise_for {	2138	sub customise_for {
1529	my ($self, $ob) = @_;	2139	my ($self, $ob) = @_;
1530		2140
1531	return find "~" . $ob->name . "/" . $self->{path}	2141	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2142	if $self->per_player;
1533		2143
		2144	# return find "?party/" . $ob->name . "/" . $self->{path}
		2145	# if $self->per_party;
		2146
1534	$self	2147	$self
1535	}	2148	}
1536		2149
1537	# find and load all maps in the 3x3 area around a map	2150	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	2151	sub load_neighbours {
1539	my ($map) = @_;	2152	my ($map) = @_;
1540		2153
1541	my @diag; # diagonal neighbours	2154	my @neigh; # diagonal neighbours
1542		2155
1543	for (0 .. 3) {	2156	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	2157	my $neigh = $map->tile_path ($_)
1545	or next;	2158	or next;
1546	$neigh = find $neigh, $map	2159	$neigh = find $neigh, $map
1547	or next;	2160	or next;
1548	$neigh->load;	2161	$neigh->load;
1549		2162
		2163	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2164	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2165	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2166	}
1553		2167
1554	for (@diag) {	2168	for (grep defined $_->[0], @neigh) {
		2169	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2170	my $neigh = find $path, $origin
1556	or next;	2171	or next;
1557	$neigh->load;	2172	$neigh->load;
1558	}	2173	}
1559	}	2174	}
1560		2175
…		…
1565	}	2180	}
1566		2181
1567	sub do_load_sync {	2182	sub do_load_sync {
1568	my ($map) = @_;	2183	my ($map) = @_;
1569		2184
		2185	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2186	if $Coro::current == $Coro::main;
		2187
1570	cf::sync_job { $map->load };	2188	cf::sync_job { $map->load };
1571	}	2189	}
1572		2190
1573	our %MAP_PREFETCH;	2191	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2192	our $MAP_PREFETCHER = undef;
1575		2193
1576	sub find_async {	2194	sub find_async {
1577	my ($path, $origin) = @_;	2195	my ($path, $origin, $load) = @_;
1578		2196
1579	$path = normalise $path, $origin && $origin->{path};	2197	$path = normalise $path, $origin && $origin->{path};
1580		2198
1581	if (my $map = $cf::MAP{$path}) {	2199	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2200	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1583	}	2201	}
1584		2202
1585	undef $MAP_PREFETCH{$path};	2203	$MAP_PREFETCH{$path} |= $load;
		2204
1586	$MAP_PREFETCHER ||= cf::async {	2205	$MAP_PREFETCHER ||= cf::async {
		2206	$Coro::current->{desc} = "map prefetcher";
		2207
1587	while (%MAP_PREFETCH) {	2208	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2209	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2210	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2211	$map->load if $v;
		2212	}
1592		2213
1593	delete $MAP_PREFETCH{$path};	2214	delete $MAP_PREFETCH{$k};
1594	}	2215	}
1595	}	2216	}
1596	undef $MAP_PREFETCHER;	2217	undef $MAP_PREFETCHER;
1597	};	2218	};
1598	$MAP_PREFETCHER->prio (6);	2219	$MAP_PREFETCHER->prio (6);
1599		2220
1600	()	2221	()
1601	}	2222	}
1602		2223
		2224	# common code, used by both ->save and ->swapout
1603	sub save {	2225	sub _save {
1604	my ($self) = @_;	2226	my ($self) = @_;
1605
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;
1607		2227
1608	$self->{last_save} = $cf::RUNTIME;	2228	$self->{last_save} = $cf::RUNTIME;
1609		2229
1610	return unless $self->dirty;	2230	return unless $self->dirty;
1611		2231
…		…
1617	return if $self->{deny_save};	2237	return if $self->{deny_save};
1618		2238
1619	local $self->{last_access} = $self->last_access;#d#	2239	local $self->{last_access} = $self->last_access;#d#
1620		2240
1621	cf::async {	2241	cf::async {
		2242	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2243	$_->contr->save for $self->players;
1623	};	2244	};
		2245
		2246	cf::get_slot 0.02;
1624		2247
1625	if ($uniq) {	2248	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2249	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2250	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2251	} else {
1629	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2252	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1630	}	2253	}
1631	}	2254	}
1632		2255
		2256	sub save {
		2257	my ($self) = @_;
		2258
		2259	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2260
		2261	$self->_save;
		2262	}
		2263
1633	sub swap_out {	2264	sub swap_out {
1634	my ($self) = @_;	2265	my ($self) = @_;
1635		2266
1636	# save first because save cedes
1637	$self->save;
1638
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2267	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2268
		2269	return if $self->in_memory != cf::MAP_ACTIVE;
		2270	return if $self->{deny_save};
1641	return if $self->players;	2271	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;
1643	return if $self->{deny_save};
1644		2272
		2273	# first deactivate the map and "unlink" it from the core
		2274	$self->deactivate;
		2275	$_->clear_links_to ($self) for values %cf::MAP;
		2276	$self->in_memory (cf::MAP_SWAPPED);
		2277
		2278	# then atomically save
		2279	$self->_save;
		2280
		2281	# then free the map
1645	$self->clear;	2282	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2283	}
1648		2284
1649	sub reset_at {	2285	sub reset_at {
1650	my ($self) = @_;	2286	my ($self) = @_;
1651		2287
1652	# TODO: safety, remove and allow resettable per-player maps	2288	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2289	return 1e99 if $self->{deny_reset};
1655		2290
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2291	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2292	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2293
…		…
1669	my ($self) = @_;	2304	my ($self) = @_;
1670		2305
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2306	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2307
1673	return if $self->players;	2308	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2309
1676	warn "resetting map ", $self->path;#d#	2310	warn "resetting map ", $self->path, "\n";
1677		2311
1678	$self->in_memory (cf::MAP_SWAPPED);	2312	$self->in_memory (cf::MAP_SWAPPED);
1679		2313
1680	# need to save uniques path	2314	# need to save uniques path
1681	unless ($self->{deny_save}) {	2315	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2319	if $uniq;
1686	}	2320	}
1687		2321
1688	delete $cf::MAP{$self->path};	2322	delete $cf::MAP{$self->path};
1689		2323
		2324	$self->deactivate;
		2325	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2326	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2327
1694	$self->unlink_save;	2328	$self->unlink_save;
1695	$self->destroy;	2329	$self->destroy;
1696	}	2330	}
1697		2331
1698	my $nuke_counter = "aaaa";	2332	my $nuke_counter = "aaaa";
1699		2333
1700	sub nuke {	2334	sub nuke {
1701	my ($self) = @_;	2335	my ($self) = @_;
1702		2336
		2337	{
		2338	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2339
1703	delete $cf::MAP{$self->path};	2340	delete $cf::MAP{$self->path};
1704		2341
1705	$self->unlink_save;	2342	$self->unlink_save;
1706		2343
1707	bless $self, "cf::map";	2344	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2345	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2346	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2347	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2348	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2349
1713	$cf::MAP{$self->path} = $self;	2350	$cf::MAP{$self->path} = $self;
		2351	}
1714		2352
1715	$self->reset; # polite request, might not happen	2353	$self->reset; # polite request, might not happen
		2354	}
		2355
		2356	=item $maps = cf::map::tmp_maps
		2357
		2358	Returns an arrayref with all map paths of currently instantiated and saved
		2359	maps. May block.
		2360
		2361	=cut
		2362
		2363	sub tmp_maps() {
		2364	[
		2365	map {
		2366	utf8::decode $_;
		2367	/\.map$/
		2368	? normalise $_
		2369	: ()
		2370	} @{ aio_readdir $TMPDIR or [] }
		2371	]
		2372	}
		2373
		2374	=item $maps = cf::map::random_maps
		2375
		2376	Returns an arrayref with all map paths of currently instantiated and saved
		2377	random maps. May block.
		2378
		2379	=cut
		2380
		2381	sub random_maps() {
		2382	[
		2383	map {
		2384	utf8::decode $_;
		2385	/\.map$/
		2386	? normalise "?random/$_"
		2387	: ()
		2388	} @{ aio_readdir $RANDOMDIR or [] }
		2389	]
1716	}	2390	}
1717		2391
1718	=item cf::map::unique_maps	2392	=item cf::map::unique_maps
1719		2393
1720	Returns an arrayref of paths of all shared maps that have	2394	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2395	instantiated unique items. May block.
1722		2396
1723	=cut	2397	=cut
1724		2398
1725	sub unique_maps() {	2399	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2400	[
1727	or return;	2401	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2402	utf8::decode $_;
1733	next if /\.pst$/;	2403	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2404	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2405	? ()
1736	push @paths, cf::map::normalise $_;	2406	: normalise $_
		2407	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2408	]
1738
1739	\@paths
1740	}	2409	}
1741		2410
1742	package cf;	2411	=item cf::map::static_maps
		2412
		2413	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2414	file in the shared directory excluding F</styles> and F</editor>). May
		2415	block.
		2416
		2417	=cut
		2418
		2419	sub static_maps() {
		2420	my @dirs = "";
		2421	my @maps;
		2422
		2423	while (@dirs) {
		2424	my $dir = shift @dirs;
		2425
		2426	next if $dir eq "/styles" || $dir eq "/editor";
		2427
		2428	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2429	or return;
		2430
		2431	for (@$files) {
		2432	s/\.map$// or next;
		2433	utf8::decode $_;
		2434	push @maps, "$dir/$_";
		2435	}
		2436
		2437	push @dirs, map "$dir/$_", @$dirs;
		2438	}
		2439
		2440	\@maps
		2441	}
1743		2442
1744	=back	2443	=back
1745		2444
1746	=head3 cf::object	2445	=head3 cf::object
1747		2446
…		…
1751		2450
1752	=over 4	2451	=over 4
1753		2452
1754	=item $ob->inv_recursive	2453	=item $ob->inv_recursive
1755		2454
1756	Returns the inventory of the object _and_ their inventories, recursively.	2455	Returns the inventory of the object I<and> their inventories, recursively,
		2456	but I<not> the object itself.
1757		2457
1758	=cut	2458	=cut
1759		2459
1760	sub inv_recursive_;	2460	sub inv_recursive_;
1761	sub inv_recursive_ {	2461	sub inv_recursive_ {
…		…
1764		2464
1765	sub inv_recursive {	2465	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2466	inv_recursive_ inv $_[0]
1767	}	2467	}
1768		2468
		2469	=item $ref = $ob->ref
		2470
		2471	Creates and returns a persistent reference to an object that can be stored as a string.
		2472
		2473	=item $ob = cf::object::deref ($refstring)
		2474
		2475	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2476	even if the object actually exists. May block.
		2477
		2478	=cut
		2479
		2480	sub deref {
		2481	my ($ref) = @_;
		2482
		2483	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2484	my ($uuid, $name) = ($1, $2);
		2485	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2486	or return;
		2487	$pl->ob->uuid eq $uuid
		2488	or return;
		2489
		2490	$pl->ob
		2491	} else {
		2492	warn "$ref: cannot resolve object reference\n";
		2493	undef
		2494	}
		2495	}
		2496
1769	package cf;	2497	package cf;
1770		2498
1771	=back	2499	=back
1772		2500
1773	=head3 cf::object::player	2501	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2507	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1780	can be C<undef>. Does the right thing when the player is currently in a	2508	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2509	dialogue with the given NPC character.
1782		2510
1783	=cut	2511	=cut
		2512
		2513	our $SAY_CHANNEL = {
		2514	id => "say",
		2515	title => "Map",
		2516	reply => "say ",
		2517	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2518	};
		2519
		2520	our $CHAT_CHANNEL = {
		2521	id => "chat",
		2522	title => "Chat",
		2523	reply => "chat ",
		2524	tooltip => "Player chat and shouts, global to the server.",
		2525	};
1784		2526
1785	# rough implementation of a future "reply" method that works	2527	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2528	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2529	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2530	sub cf::object::player::reply($$$;$) {
…		…
1790		2532
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2533	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2534
1793	if ($self->{record_replies}) {	2535	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2536	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2537
1795	} else {	2538	} else {
		2539	my $pl = $self->contr;
		2540
		2541	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2542	my $dialog = $pl->{npc_dialog};
		2543	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2544
		2545	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2546	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2547	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2548	}
1798	}	2549	}
		2550	}
		2551
		2552	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2553
		2554	=cut
		2555
		2556	sub cf::object::send_msg {
		2557	my $pl = shift->contr
		2558	or return;
		2559	$pl->send_msg (@_);
1799	}	2560	}
1800		2561
1801	=item $player_object->may ("access")	2562	=item $player_object->may ("access")
1802		2563
1803	Returns wether the given player is authorized to access resource "access"	2564	Returns wether the given player is authorized to access resource "access"
…		…
1816		2577
1817	=item $player_object->enter_link	2578	=item $player_object->enter_link
1818		2579
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2580	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2581
1821	The player should be reasonably safe there for short amounts of time. You	2582	The player should be reasonably safe there for short amounts of time (e.g.
1822	I<MUST> call C<leave_link> as soon as possible, though.	2583	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2584	though, as the palyer cannot control the character while it is on the link
		2585	map.
1823		2586
1824	Will never block.	2587	Will never block.
1825		2588
1826	=item $player_object->leave_link ($map, $x, $y)	2589	=item $player_object->leave_link ($map, $x, $y)
1827		2590
…		…
1850	$self->deactivate_recursive;	2613	$self->deactivate_recursive;
1851		2614
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2615	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2616
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2617	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2618	if $self->map && $self->map->{path} ne "{link}";
1856		2619
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2620	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1858	}	2621	}
1859		2622
1860	sub cf::object::player::leave_link {	2623	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2624	my ($self, $map, $x, $y) = @_;
		2625
		2626	return unless $self->contr->active;
1862		2627
1863	my $link_pos = delete $self->{_link_pos};	2628	my $link_pos = delete $self->{_link_pos};
1864		2629
1865	unless ($map) {	2630	unless ($map) {
1866	# restore original map position	2631	# restore original map position
…		…
1877	($x, $y) = (-1, -1)	2642	($x, $y) = (-1, -1)
1878	unless (defined $x) && (defined $y);	2643	unless (defined $x) && (defined $y);
1879		2644
1880	# use -1 or undef as default coordinates, not 0, 0	2645	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2646	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2647	if $x <= 0 && $y <= 0;
1883		2648
1884	$map->load;	2649	$map->load;
1885	$map->load_diag;	2650	$map->load_neighbours;
1886		2651
1887	return unless $self->contr->active;	2652	return unless $self->contr->active;
1888	$self->activate_recursive;
1889		2653
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2654	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2655	$self->enter_map ($map, $x, $y);
1892	}
1893		2656
1894	cf::player->attach (	2657	# only activate afterwards, to support waiting in hooks
1895	on_logout => sub {	2658	$self->activate_recursive;
1896	my ($pl) = @_;	2659	}
1897		2660
1898	# abort map switching before logout	2661	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1899	if ($pl->ob->{_link_pos}) {
1900	cf::sync_job {
1901	$pl->ob->leave_link
1902	};
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2662
1908	# try to abort aborted map switching on player login :)	2663	Moves the player to the given map-path and coordinates by first freezing
1909	# should happen only on crashes	2664	her, loading and preparing them map, calling the provided $check callback
1910	if ($pl->ob->{_link_pos}) {	2665	that has to return the map if sucecssful, and then unfreezes the player on
1911	$pl->ob->enter_link;	2666	the new (success) or old (failed) map position. In either case, $done will
1912	(async {	2667	be called at the end of this process.
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925		2668
1926	=item $player_object->goto ($path, $x, $y)	2669	Note that $check will be called with a potentially non-loaded map, so if
		2670	it needs a loaded map it has to call C<< ->load >>.
1927		2671
1928	=cut	2672	=cut
		2673
		2674	our $GOTOGEN;
1929		2675
1930	sub cf::object::player::goto {	2676	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2677	my ($self, $path, $x, $y, $check, $done) = @_;
		2678
		2679	# do generation counting so two concurrent goto's will be executed in-order
		2680	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2681
1933	$self->enter_link;	2682	$self->enter_link;
1934		2683
1935	(async {	2684	(async {
		2685	$Coro::current->{desc} = "player::goto $path $x $y";
		2686
		2687	# *tag paths override both path and x|y
		2688	if ($path =~ /^\*(.*)$/) {
		2689	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2690	my $ob = $obs[rand @obs];
		2691
		2692	# see if we actually can go there
		2693	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2694	$ob = $obs[rand @obs];
		2695	} else {
		2696	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2697	}
		2698	# else put us there anyways for now #d#
		2699
		2700	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2701	} else {
		2702	($path, $x, $y) = (undef, undef, undef);
		2703	}
		2704	}
		2705
1936	my $map = eval {	2706	my $map = eval {
1937	my $map = cf::map::find $path;	2707	my $map = defined $path ? cf::map::find $path : undef;
		2708
		2709	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2710	$map = $map->customise_for ($self);
		2711	$map = $check->($map) if $check && $map;
		2712	} else {
		2713	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2714	}
		2715
1939	$map	2716	$map
		2717	};
		2718
		2719	if ($@) {
		2720	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2721	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2722	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2723
		2724	if ($gen == $self->{_goto_generation}) {
		2725	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2726	$self->leave_link ($map, $x, $y);
		2727	}
		2728
		2729	$done->() if $done;
1944	})->prio (1);	2730	})->prio (1);
1945	}	2731	}
1946		2732
1947	=item $player_object->enter_exit ($exit_object)	2733	=item $player_object->enter_exit ($exit_object)
1948		2734
…		…
1968	}	2754	}
1969		2755
1970	sub prepare_random_map {	2756	sub prepare_random_map {
1971	my ($exit) = @_;	2757	my ($exit) = @_;
1972		2758
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2759	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2760	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2761	# that depends on the exit object
1978		2762
1979	my $rmp = parse_random_map_params $exit->msg;	2763	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2765	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2766	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2767	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2768	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2769	$rmp->{origin_y} = $exit->y;
		2770
		2771	$exit->map->touch;
1986	}	2772	}
1987		2773
1988	$rmp->{random_seed} ||= $exit->random_seed;	2774	$rmp->{random_seed} ||= $exit->random_seed;
1989		2775
1990	my $data = cf::to_json $rmp;	2776	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2777	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2778	my $meta = "$RANDOMDIR/$md5.meta";
1993		2779
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2780	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2781	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2782	undef $fh;
1997	aio_rename "$meta~", $meta;	2783	aio_rename "$meta~", $meta;
1998		2784
		2785	my $slaying = "?random/$md5";
		2786
		2787	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2788	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2789	$exit->msg (undef);
		2790	}
2001	}	2791	}
2002	}	2792	}
2003		2793
2004	sub cf::object::player::enter_exit {	2794	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2795	my ($self, $exit) = @_;
2006		2796
2007	return unless $self->type == cf::PLAYER;	2797	return unless $self->type == cf::PLAYER;
2008		2798
2009	if ($exit->slaying eq "/!") {
2010	#TODO: this should de-fi-ni-te-ly not be a sync-job
2011	# the problem is that $exit might not survive long enough
2012	# so it needs to be done right now, right here
2013	cf::sync_job { prepare_random_map $exit };
2014	}
2015
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;
2019
2020	$self->enter_link;	2799	$self->enter_link;
2021		2800
2022	(async {	2801	(async {
2023	$self->deactivate_recursive; # just to be sure	2802	$Coro::current->{desc} = "enter_exit";
		2803
2024	unless (eval {	2804	unless (eval {
		2805	$self->deactivate_recursive; # just to be sure
		2806
		2807	# random map handling
		2808	{
		2809	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2810
		2811	prepare_random_map $exit
		2812	if $exit->slaying eq "/!";
		2813	}
		2814
		2815	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2816	my $x = $exit->stats->hp;
		2817	my $y = $exit->stats->sp;
		2818
2025	$self->goto ($slaying, $hp, $sp);	2819	$self->goto ($map, $x, $y);
2026		2820
		2821	# if exit is damned, update players death & WoR home-position
		2822	$self->contr->savebed ($map, $x, $y)
		2823	if $exit->flag (cf::FLAG_DAMNED);
		2824
2027	1;	2825	1
2028	}) {	2826	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	2827	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	2828	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	2829	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	2830	cf::NDI_UNIQUE | cf::NDI_RED);
2033		2831
2034	warn "ERROR in enter_exit: $@";	2832	warn "ERROR in enter_exit: $@";
…		…
2053		2851
2054	utf8::encode $text;	2852	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2853	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2854	}
2057		2855
		2856	=item $client->send_big_packet ($pkt)
		2857
		2858	Like C<send_packet>, but tries to compress large packets, and fragments
		2859	them as required.
		2860
		2861	=cut
		2862
		2863	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2864
		2865	sub cf::client::send_big_packet {
		2866	my ($self, $pkt) = @_;
		2867
		2868	# try lzf for large packets
		2869	$pkt = "lzf " . Compress::LZF::compress $pkt
		2870	if 1024 <= length $pkt and $self->{can_lzf};
		2871
		2872	# split very large packets
		2873	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2874	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2875	$pkt = "frag";
		2876	}
		2877
		2878	$self->send_packet ($pkt);
		2879	}
		2880
		2881	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2882
		2883	Send a drawinfo or msg packet to the client, formatting the msg for the
		2884	client if neccessary. C<$type> should be a string identifying the type of
		2885	the message, with C<log> being the default. If C<$color> is negative, suppress
		2886	the message unless the client supports the msg packet.
		2887
		2888	=cut
		2889
		2890	# non-persistent channels (usually the info channel)
		2891	our %CHANNEL = (
		2892	"c/motd" => {
		2893	id => "infobox",
		2894	title => "MOTD",
		2895	reply => undef,
		2896	tooltip => "The message of the day",
		2897	},
		2898	"c/identify" => {
		2899	id => "infobox",
		2900	title => "Identify",
		2901	reply => undef,
		2902	tooltip => "Items recently identified",
		2903	},
		2904	"c/examine" => {
		2905	id => "infobox",
		2906	title => "Examine",
		2907	reply => undef,
		2908	tooltip => "Signs and other items you examined",
		2909	},
		2910	"c/shopinfo" => {
		2911	id => "infobox",
		2912	title => "Shop Info",
		2913	reply => undef,
		2914	tooltip => "What your bargaining skill tells you about the shop",
		2915	},
		2916	"c/book" => {
		2917	id => "infobox",
		2918	title => "Book",
		2919	reply => undef,
		2920	tooltip => "The contents of a note or book",
		2921	},
		2922	"c/lookat" => {
		2923	id => "infobox",
		2924	title => "Look",
		2925	reply => undef,
		2926	tooltip => "What you saw there",
		2927	},
		2928	"c/who" => {
		2929	id => "infobox",
		2930	title => "Players",
		2931	reply => undef,
		2932	tooltip => "Shows players who are currently online",
		2933	},
		2934	"c/body" => {
		2935	id => "infobox",
		2936	title => "Body Parts",
		2937	reply => undef,
		2938	tooltip => "Shows which body parts you posess and are available",
		2939	},
		2940	"c/statistics" => {
		2941	id => "infobox",
		2942	title => "Statistics",
		2943	reply => undef,
		2944	tooltip => "Shows your primary statistics",
		2945	},
		2946	"c/skills" => {
		2947	id => "infobox",
		2948	title => "Skills",
		2949	reply => undef,
		2950	tooltip => "Shows your experience per skill and item power",
		2951	},
		2952	"c/shopitems" => {
		2953	id => "infobox",
		2954	title => "Shop Items",
		2955	reply => undef,
		2956	tooltip => "Shows the items currently for sale in this shop",
		2957	},
		2958	"c/resistances" => {
		2959	id => "infobox",
		2960	title => "Resistances",
		2961	reply => undef,
		2962	tooltip => "Shows your resistances",
		2963	},
		2964	"c/pets" => {
		2965	id => "infobox",
		2966	title => "Pets",
		2967	reply => undef,
		2968	tooltip => "Shows information abotu your pets/a specific pet",
		2969	},
		2970	"c/perceiveself" => {
		2971	id => "infobox",
		2972	title => "Perceive Self",
		2973	reply => undef,
		2974	tooltip => "You gained detailed knowledge about yourself",
		2975	},
		2976	"c/uptime" => {
		2977	id => "infobox",
		2978	title => "Uptime",
		2979	reply => undef,
		2980	tooltip => "How long the server has been running since last restart",
		2981	},
		2982	"c/mapinfo" => {
		2983	id => "infobox",
		2984	title => "Map Info",
		2985	reply => undef,
		2986	tooltip => "Information related to the maps",
		2987	},
		2988	"c/party" => {
		2989	id => "party",
		2990	title => "Party",
		2991	reply => "gsay ",
		2992	tooltip => "Messages and chat related to your party",
		2993	},
		2994	"c/death" => {
		2995	id => "death",
		2996	title => "Death",
		2997	reply => undef,
		2998	tooltip => "Reason for and more info about your most recent death",
		2999	},
		3000	"c/say" => $SAY_CHANNEL,
		3001	"c/chat" => $CHAT_CHANNEL,
		3002	);
		3003
		3004	sub cf::client::send_msg {
		3005	my ($self, $channel, $msg, $color, @extra) = @_;
		3006
		3007	$msg = $self->pl->expand_cfpod ($msg)
		3008	unless $color & cf::NDI_VERBATIM;
		3009
		3010	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3011
		3012	# check predefined channels, for the benefit of C
		3013	if ($CHANNEL{$channel}) {
		3014	$channel = $CHANNEL{$channel};
		3015
		3016	$self->ext_msg (channel_info => $channel);
		3017	$channel = $channel->{id};
		3018
		3019	} elsif (ref $channel) {
		3020	# send meta info to client, if not yet sent
		3021	unless (exists $self->{channel}{$channel->{id}}) {
		3022	$self->{channel}{$channel->{id}} = $channel;
		3023	$self->ext_msg (channel_info => $channel);
		3024	}
		3025
		3026	$channel = $channel->{id};
		3027	}
		3028
		3029	return unless @extra || length $msg;
		3030
		3031	# default colour, mask it out
		3032	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3033	if $color & cf::NDI_DEF;
		3034
		3035	my $pkt = "msg "
		3036	. $self->{json_coder}->encode (
		3037	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3038	);
		3039
		3040	$self->send_big_packet ($pkt);
		3041	}
		3042
2058	=item $client->ext_event ($type, %msg)	3043	=item $client->ext_msg ($type, @msg)
2059		3044
2060	Sends an exti event to the client.	3045	Sends an ext event to the client.
2061		3046
2062	=cut	3047	=cut
2063		3048
2064	sub cf::client::ext_event($$%) {	3049	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	3050	my ($self, $type, @msg) = @_;
2066		3051
		3052	if ($self->extcmd == 2) {
		3053	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3054	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	3055	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	3056	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3057	}
		3058	}
		3059
		3060	=item $client->ext_reply ($msgid, @msg)
		3061
		3062	Sends an ext reply to the client.
		3063
		3064	=cut
		3065
		3066	sub cf::client::ext_reply($$@) {
		3067	my ($self, $id, @msg) = @_;
		3068
		3069	if ($self->extcmd == 2) {
		3070	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3071	} elsif ($self->extcmd == 1) {
		3072	#TODO: version 1, remove
		3073	unshift @msg, msgtype => "reply", msgid => $id;
		3074	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3075	}
2069	}	3076	}
2070		3077
2071	=item $success = $client->query ($flags, "text", \&cb)	3078	=item $success = $client->query ($flags, "text", \&cb)
2072		3079
2073	Queues a query to the client, calling the given callback with	3080	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3081	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3082	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		3083
2077	Queries can fail, so check the return code. Or don't, as queries will become	3084	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	3085	become reliable at some point in the future.
2079		3086
2080	=cut	3087	=cut
2081		3088
2082	sub cf::client::query {	3089	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	3090	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	3098	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3099	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		3100
2094	$self->send_packet ($self->{query_queue}[0][0])	3101	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	3102	if @{ $self->{query_queue} } == 1;
		3103
		3104	1
2096	}	3105	}
2097		3106
2098	cf::client->attach (	3107	cf::client->attach (
		3108	on_connect => sub {
		3109	my ($ns) = @_;
		3110
		3111	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3112	},
2099	on_reply => sub {	3113	on_reply => sub {
2100	my ($ns, $msg) = @_;	3114	my ($ns, $msg) = @_;
2101		3115
2102	# this weird shuffling is so that direct followup queries	3116	# this weird shuffling is so that direct followup queries
2103	# get handled first	3117	# get handled first
…		…
2115	} else {	3129	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3130	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	3131	}
2118	}	3132	}
2119	},	3133	},
		3134	on_exticmd => sub {
		3135	my ($ns, $buf) = @_;
		3136
		3137	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3138
		3139	if (ref $msg) {
		3140	my ($type, $reply, @payload) =
		3141	"ARRAY" eq ref $msg
		3142	? @$msg
		3143	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3144
		3145	my @reply;
		3146
		3147	if (my $cb = $EXTICMD{$type}) {
		3148	@reply = $cb->($ns, @payload);
		3149	}
		3150
		3151	$ns->ext_reply ($reply, @reply)
		3152	if $reply;
		3153
		3154	} else {
		3155	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3156	}
		3157
		3158	cf::override;
		3159	},
2120	);	3160	);
2121		3161
2122	=item $client->async (\&cb)	3162	=item $client->async (\&cb)
2123		3163
2124	Create a new coroutine, running the specified callback. The coroutine will	3164	Create a new coroutine, running the specified callback. The coroutine will
…		…
2140		3180
2141	$coro	3181	$coro
2142	}	3182	}
2143		3183
2144	cf::client->attach (	3184	cf::client->attach (
2145	on_destroy => sub {	3185	on_client_destroy => sub {
2146	my ($ns) = @_;	3186	my ($ns) = @_;
2147		3187
2148	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3188	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2149	},	3189	},
2150	);	3190	);
…		…
2165	our $safe = new Safe "safe";	3205	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3206	our $safe_hole = new Safe::Hole;
2167		3207
2168	$SIG{FPE} = 'IGNORE';	3208	$SIG{FPE} = 'IGNORE';
2169		3209
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3210	$safe->permit_only (Opcode::opset qw(
		3211	:base_core :base_mem :base_orig :base_math :base_loop
		3212	grepstart grepwhile mapstart mapwhile
		3213	sort time
		3214	));
2171		3215
2172	# here we export the classes and methods available to script code	3216	# here we export the classes and methods available to script code
2173		3217
2174	=pod	3218	=pod
2175		3219
2176	The following functions and methods are available within a safe environment:	3220	The following functions and methods are available within a safe environment:
2177		3221
2178	cf::object contr pay_amount pay_player map	3222	cf::object
		3223	contr pay_amount pay_player map x y force_find force_add destroy
		3224	insert remove name archname title slaying race decrease split
		3225	value
		3226
2179	cf::object::player player	3227	cf::object::player
2180	cf::player peaceful	3228	player
2181	cf::map trigger	3229
		3230	cf::player
		3231	peaceful
		3232
		3233	cf::map
		3234	trigger
2182		3235
2183	=cut	3236	=cut
2184		3237
2185	for (	3238	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3239	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3240	insert remove inv nrof name archname title slaying race
		3241	decrease split destroy change_exp value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3242	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3243	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3244	["cf::map" => qw(trigger)],
2190	) {	3245	) {
2191	no strict 'refs';	3246	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3247	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3248	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2211		3266
2212	my $qcode = $code;	3267	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3268	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3269	$qcode =~ s/\n/\\n/g;
2215		3270
		3271	%vars = (_dummy => 0) unless %vars;
		3272
		3273	my @res;
2216	local $_;	3274	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;
2218		3275
2219	my $eval =	3276	my $eval =
2220	"do {\n"	3277	"do {\n"
2221	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3278	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2222	. "#line 0 \"{$qcode}\"\n"	3279	. "#line 0 \"{$qcode}\"\n"
2223	. $code	3280	. $code
2224	. "\n}"	3281	. "\n}"
2225	;	3282	;
2226		3283
		3284	if ($CFG{safe_eval}) {
2227	sub_generation_inc;	3285	sub_generation_inc;
		3286	local @safe::cf::_safe_eval_args = values %vars;
2228	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3287	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2229	sub_generation_inc;	3288	sub_generation_inc;
		3289	} else {
		3290	local @cf::_safe_eval_args = values %vars;
		3291	@res = wantarray ? eval eval : scalar eval $eval;
		3292	}
2230		3293
2231	if ($@) {	3294	if ($@) {
2232	warn "$@";	3295	warn "$@";
2233	warn "while executing safe code '$code'\n";	3296	warn "while executing safe code '$code'\n";
2234	warn "with arguments " . (join " ", %vars) . "\n";	3297	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2253	=cut	3316	=cut
2254		3317
2255	sub register_script_function {	3318	sub register_script_function {
2256	my ($fun, $cb) = @_;	3319	my ($fun, $cb) = @_;
2257		3320
2258	no strict 'refs';	3321	$fun = "safe::$fun" if $CFG{safe_eval};
2259	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3322	*$fun = $safe_hole->wrap ($cb);
2260	}	3323	}
2261		3324
2262	=back	3325	=back
2263		3326
2264	=cut	3327	=cut
2265
2266	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	local $SIG{__WARN__};
2420	eval {
2421	local $SIG{__DIE__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	warn $@ if $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434		3328
2435	#############################################################################	3329	#############################################################################
2436	# the server's init and main functions	3330	# the server's init and main functions
2437		3331
2438	sub load_facedata($) {	3332	sub load_facedata($) {
2439	my ($path) = @_;	3333	my ($path) = @_;
		3334
		3335	# HACK to clear player env face cache, we need some signal framework
		3336	# for this (global event?)
		3337	%ext::player_env::MUSIC_FACE_CACHE = ();
		3338
		3339	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2440		3340
2441	warn "loading facedata from $path\n";	3341	warn "loading facedata from $path\n";
2442		3342
2443	my $facedata;	3343	my $facedata;
2444	0 < aio_load $path, $facedata	3344	0 < aio_load $path, $facedata
…		…
2447	$facedata = Coro::Storable::thaw $facedata;	3347	$facedata = Coro::Storable::thaw $facedata;
2448		3348
2449	$facedata->{version} == 2	3349	$facedata->{version} == 2
2450	or cf::cleanup "$path: version mismatch, cannot proceed.";	3350	or cf::cleanup "$path: version mismatch, cannot proceed.";
2451		3351
		3352	# patch in the exptable
		3353	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3354	$facedata->{resource}{"res/exp_table"} = {
		3355	type => FT_RSRC,
		3356	data => $exp_table,
		3357	hash => (Digest::MD5::md5 $exp_table),
		3358	};
		3359	cf::cede_to_tick;
		3360
2452	{	3361	{
2453	my $faces = $facedata->{faceinfo};	3362	my $faces = $facedata->{faceinfo};
2454		3363
2455	while (my ($face, $info) = each %$faces) {	3364	while (my ($face, $info) = each %$faces) {
2456	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3365	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3366
2457	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3367	cf::face::set_visibility $idx, $info->{visibility};
		3368	cf::face::set_magicmap $idx, $info->{magicmap};
2458	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3369	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2459	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3370	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2460	Coro::cede;	3371
		3372	cf::cede_to_tick;
2461	}	3373	}
2462		3374
2463	while (my ($face, $info) = each %$faces) {	3375	while (my ($face, $info) = each %$faces) {
2464	next unless $info->{smooth};	3376	next unless $info->{smooth};
		3377
2465	my $idx = cf::face::find $face	3378	my $idx = cf::face::find $face
2466	or next;	3379	or next;
		3380
2467	if (my $smooth = cf::face::find $info->{smooth}) {	3381	if (my $smooth = cf::face::find $info->{smooth}) {
		3382	cf::face::set_smooth $idx, $smooth;
2468	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3383	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2469	} else {	3384	} else {
2470	warn "smooth face '$info->{smooth}' not found for face '$face'";	3385	warn "smooth face '$info->{smooth}' not found for face '$face'";
2471	}	3386	}
2472	Coro::cede;	3387
		3388	cf::cede_to_tick;
2473	}	3389	}
2474	}	3390	}
2475		3391
2476	{	3392	{
2477	my $anims = $facedata->{animinfo};	3393	my $anims = $facedata->{animinfo};
2478		3394
2479	while (my ($anim, $info) = each %$anims) {	3395	while (my ($anim, $info) = each %$anims) {
2480	cf::anim::set $anim, $info->{frames}, $info->{facings};	3396	cf::anim::set $anim, $info->{frames}, $info->{facings};
2481	Coro::cede;	3397	cf::cede_to_tick;
2482	}	3398	}
2483		3399
2484	cf::anim::invalidate_all; # d'oh	3400	cf::anim::invalidate_all; # d'oh
2485	}	3401	}
2486		3402
		3403	{
		3404	my $res = $facedata->{resource};
		3405
		3406	while (my ($name, $info) = each %$res) {
		3407	if (defined $info->{type}) {
		3408	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3409
		3410	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3411	cf::face::set_type $idx, $info->{type};
		3412	} else {
		3413	$RESOURCE{$name} = $info;
		3414	}
		3415
		3416	cf::cede_to_tick;
		3417	}
		3418	}
		3419
		3420	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3421
2487	1	3422	1
2488	}	3423	}
2489		3424
		3425	cf::global->attach (on_resource_update => sub {
		3426	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3427	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3428
		3429	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3430	my $sound = $soundconf->{compat}[$_]
		3431	or next;
		3432
		3433	my $face = cf::face::find "sound/$sound->[1]";
		3434	cf::sound::set $sound->[0] => $face;
		3435	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3436	}
		3437
		3438	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3439	my $face = cf::face::find "sound/$v";
		3440	cf::sound::set $k => $face;
		3441	}
		3442	}
		3443	});
		3444
		3445	register_exticmd fx_want => sub {
		3446	my ($ns, $want) = @_;
		3447
		3448	while (my ($k, $v) = each %$want) {
		3449	$ns->fx_want ($k, $v);
		3450	}
		3451	};
		3452
		3453	sub load_resource_file($) {
		3454	my $guard = lock_acquire "load_resource_file";
		3455
		3456	my $status = load_resource_file_ $_[0];
		3457	get_slot 0.1, 100;
		3458	cf::arch::commit_load;
		3459
		3460	$status
		3461	}
		3462
		3463	sub reload_regions {
		3464	# HACK to clear player env face cache, we need some signal framework
		3465	# for this (global event?)
		3466	%ext::player_env::MUSIC_FACE_CACHE = ();
		3467
		3468	load_resource_file "$MAPDIR/regions"
		3469	or die "unable to load regions file\n";
		3470
		3471	for (cf::region::list) {
		3472	$_->{match} = qr/$_->{match}/
		3473	if exists $_->{match};
		3474	}
		3475	}
		3476
2490	sub reload_facedata {	3477	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	3478	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	3479	or die "unable to load facedata\n";
2493	}	3480	}
2494		3481
2495	sub reload_regions {
2496	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497	or die "unable to load regions file\n";
2498	}
2499
2500	sub reload_archetypes {	3482	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	3483	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	3484	or die "unable to load archetypes\n";
2503	}	3485	}
2504		3486
2505	sub reload_treasures {	3487	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	3488	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	3489	or die "unable to load treasurelists\n";
2508	}	3490	}
2509		3491
2510	sub reload_resources {	3492	sub reload_resources {
2511	warn "reloading resource files...\n";	3493	warn "reloading resource files...\n";
2512		3494
2513	reload_regions;
2514	reload_facedata;	3495	reload_facedata;
2515	reload_archetypes;	3496	reload_archetypes;
		3497	reload_regions;
2516	reload_treasures;	3498	reload_treasures;
2517		3499
2518	warn "finished reloading resource files\n";	3500	warn "finished reloading resource files\n";
2519	}	3501	}
2520		3502
2521	sub init {	3503	sub reload_config {
2522	reload_resources;	3504	warn "reloading config file...\n";
2523	}
2524		3505
2525	sub cfg_load {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	3506	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	3507	or return;
2528		3508
2529	local $/;	3509	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	3510	*CFG = YAML::XS::Load scalar <$fh>;
2531		3511
2532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3512	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2533		3513
2534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3514	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3515	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2539	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3519	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2540	and die "WARNING: m(un)lockall failed: $!\n";	3520	and die "WARNING: m(un)lockall failed: $!\n";
2541	};	3521	};
2542	warn $@ if $@;	3522	warn $@ if $@;
2543	}	3523	}
		3524
		3525	warn "finished reloading resource files\n";
		3526	}
		3527
		3528	sub pidfile() {
		3529	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3530	or die "$PIDFILE: $!";
		3531	flock $fh, &Fcntl::LOCK_EX
		3532	or die "$PIDFILE: flock: $!";
		3533	$fh
		3534	}
		3535
		3536	# make sure only one server instance is running at any one time
		3537	sub atomic {
		3538	my $fh = pidfile;
		3539
		3540	my $pid = <$fh>;
		3541	kill 9, $pid if $pid > 0;
		3542
		3543	seek $fh, 0, 0;
		3544	print $fh $$;
		3545	}
		3546
		3547	sub main_loop {
		3548	warn "EV::loop starting\n";
		3549	if (1) {
		3550	EV::loop;
		3551	}
		3552	warn "EV::loop returned\n";
		3553	goto &main_loop unless $REALLY_UNLOOP;
2544	}	3554	}
2545		3555
2546	sub main {	3556	sub main {
		3557	cf::init_globals; # initialise logging
		3558
		3559	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3560	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3561	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3562	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3563
		3564	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3565
2547	# we must not ever block the main coroutine	3566	# we must not ever block the main coroutine
2548	local $Coro::idle = sub {	3567	local $Coro::idle = sub {
2549	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3568	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2550	(async {	3569	(async {
2551	Event::one_event;	3570	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3571	EV::loop EV::LOOP_ONESHOT;
2552	})->prio (Coro::PRIO_MAX);	3572	})->prio (Coro::PRIO_MAX);
2553	};	3573	};
2554		3574
2555	cfg_load;	3575	evthread_start IO::AIO::poll_fileno;
		3576
		3577	cf::sync_job {
		3578	cf::init_experience;
		3579	cf::init_anim;
		3580	cf::init_attackmess;
		3581	cf::init_dynamic;
		3582
		3583	cf::load_settings;
		3584	cf::load_materials;
		3585
		3586	reload_resources;
		3587	reload_config;
2556	db_init;	3588	db_init;
		3589
		3590	cf::init_uuid;
		3591	cf::init_signals;
		3592	cf::init_skills;
		3593
		3594	cf::init_beforeplay;
		3595
		3596	atomic;
		3597
2557	load_extensions;	3598	load_extensions;
2558		3599
2559	$TICK_WATCHER->start;	3600	utime time, time, $RUNTIMEFILE;
2560	Event::loop;	3601
		3602	# no (long-running) fork's whatsoever before this point(!)
		3603	use POSIX ();
		3604	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3605
		3606	(pop @POST_INIT)->(0) while @POST_INIT;
		3607	};
		3608
		3609	cf::object::thawer::errors_are_fatal 0;
		3610	warn "parse errors in files are no longer fatal from this point on.\n";
		3611
		3612	main_loop;
2561	}	3613	}
2562		3614
2563	#############################################################################	3615	#############################################################################
2564	# initialisation and cleanup	3616	# initialisation and cleanup
2565		3617
2566	# install some emergency cleanup handlers	3618	# install some emergency cleanup handlers
2567	BEGIN {	3619	BEGIN {
		3620	our %SIGWATCHER = ();
2568	for my $signal (qw(INT HUP TERM)) {	3621	for my $signal (qw(INT HUP TERM)) {
2569	Event->signal (	3622	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2570	reentrant => 0,
2571	data => WF_AUTOCANCEL,
2572	signal => $signal,
2573	prio => 0,
2574	cb => sub {
2575	cf::cleanup "SIG$signal";	3623	cf::cleanup "SIG$signal";
2576	},
2577	);	3624	};
		3625	}
		3626	}
		3627
		3628	sub write_runtime_sync {
		3629	my $t0 = AE::time;
		3630
		3631	# first touch the runtime file to show we are still running:
		3632	# the fsync below can take a very very long time.
		3633
		3634	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3635
		3636	my $guard = cf::lock_acquire "write_runtime";
		3637
		3638	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3639	or return;
		3640
		3641	my $value = $cf::RUNTIME + 90 + 10;
		3642	# 10 is the runtime save interval, for a monotonic clock
		3643	# 60 allows for the watchdog to kill the server.
		3644
		3645	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3646	and return;
		3647
		3648	# always fsync - this file is important
		3649	aio_fsync $fh
		3650	and return;
		3651
		3652	# touch it again to show we are up-to-date
		3653	aio_utime $fh, undef, undef;
		3654
		3655	close $fh
		3656	or return;
		3657
		3658	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3659	and return;
		3660
		3661	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3662
2578	}	3663	1
		3664	}
		3665
		3666	our $uuid_lock;
		3667	our $uuid_skip;
		3668
		3669	sub write_uuid_sync($) {
		3670	$uuid_skip ||= $_[0];
		3671
		3672	return if $uuid_lock;
		3673	local $uuid_lock = 1;
		3674
		3675	my $uuid = "$LOCALDIR/uuid";
		3676
		3677	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3678	or return;
		3679
		3680	my $value = uuid_seq uuid_cur;
		3681
		3682	unless ($value) {
		3683	warn "cowardly refusing to write zero uuid value!\n";
		3684	return;
		3685	}
		3686
		3687	my $value = uuid_str $value + $uuid_skip;
		3688	$uuid_skip = 0;
		3689
		3690	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3691	and return;
		3692
		3693	# always fsync - this file is important
		3694	aio_fsync $fh
		3695	and return;
		3696
		3697	close $fh
		3698	or return;
		3699
		3700	aio_rename "$uuid~", $uuid
		3701	and return;
		3702
		3703	warn "uuid file written ($value).\n";
		3704
		3705	1
		3706
		3707	}
		3708
		3709	sub write_uuid($$) {
		3710	my ($skip, $sync) = @_;
		3711
		3712	$sync ? write_uuid_sync $skip
		3713	: async { write_uuid_sync $skip };
2579	}	3714	}
2580		3715
2581	sub emergency_save() {	3716	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	3717	my $freeze_guard = cf::freeze_mainloop;
2583		3718
2584	warn "enter emergency perl save\n";	3719	warn "emergency_perl_save: enter\n";
2585		3720
2586	cf::sync_job {	3721	cf::sync_job {
		3722	# this is a trade-off: we want to be very quick here, so
		3723	# save all maps without fsync, and later call a global sync
		3724	# (which in turn might be very very slow)
		3725	local $USE_FSYNC = 0;
		3726
2587	# use a peculiar iteration method to avoid tripping on perl	3727	# use a peculiar iteration method to avoid tripping on perl
2588	# refcount bugs in for. also avoids problems with players	3728	# refcount bugs in for. also avoids problems with players
2589	# and maps saved/destroyed asynchronously.	3729	# and maps saved/destroyed asynchronously.
2590	warn "begin emergency player save\n";	3730	warn "emergency_perl_save: begin player save\n";
2591	for my $login (keys %cf::PLAYER) {	3731	for my $login (keys %cf::PLAYER) {
2592	my $pl = $cf::PLAYER{$login} or next;	3732	my $pl = $cf::PLAYER{$login} or next;
2593	$pl->valid or next;	3733	$pl->valid or next;
		3734	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2594	$pl->save;	3735	$pl->save;
2595	}	3736	}
2596	warn "end emergency player save\n";	3737	warn "emergency_perl_save: end player save\n";
2597		3738
2598	warn "begin emergency map save\n";	3739	warn "emergency_perl_save: begin map save\n";
2599	for my $path (keys %cf::MAP) {	3740	for my $path (keys %cf::MAP) {
2600	my $map = $cf::MAP{$path} or next;	3741	my $map = $cf::MAP{$path} or next;
2601	$map->valid or next;	3742	$map->valid or next;
2602	$map->save;	3743	$map->save;
2603	}	3744	}
2604	warn "end emergency map save\n";	3745	warn "emergency_perl_save: end map save\n";
2605		3746
2606	warn "begin emergency database checkpoint\n";	3747	warn "emergency_perl_save: begin database checkpoint\n";
2607	BDB::db_env_txn_checkpoint $DB_ENV;	3748	BDB::db_env_txn_checkpoint $DB_ENV;
2608	warn "end emergency database checkpoint\n";	3749	warn "emergency_perl_save: end database checkpoint\n";
		3750
		3751	warn "emergency_perl_save: begin write uuid\n";
		3752	write_uuid_sync 1;
		3753	warn "emergency_perl_save: end write uuid\n";
2609	};	3754	};
2610		3755
		3756	warn "emergency_perl_save: starting sync()\n";
		3757	IO::AIO::aio_sync sub {
		3758	warn "emergency_perl_save: finished sync()\n";
		3759	};
		3760
2611	warn "leave emergency perl save\n";	3761	warn "emergency_perl_save: leave\n";
2612	}	3762	}
2613		3763
2614	sub post_cleanup {	3764	sub post_cleanup {
2615	my ($make_core) = @_;	3765	my ($make_core) = @_;
2616		3766
2617	warn Carp::longmess "post_cleanup backtrace"	3767	warn Carp::longmess "post_cleanup backtrace"
2618	if $make_core;	3768	if $make_core;
		3769
		3770	my $fh = pidfile;
		3771	unlink $PIDFILE if <$fh> == $$;
		3772	}
		3773
		3774	# a safer delete_package, copied from Symbol
		3775	sub clear_package($) {
		3776	my $pkg = shift;
		3777
		3778	# expand to full symbol table name if needed
		3779	unless ($pkg =~ /^main::.*::$/) {
		3780	$pkg = "main$pkg" if $pkg =~ /^::/;
		3781	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3782	$pkg .= '::' unless $pkg =~ /::$/;
		3783	}
		3784
		3785	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3786	my $stem_symtab = *{$stem}{HASH};
		3787
		3788	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3789	or return;
		3790
		3791	# clear all symbols
		3792	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3793	for my $name (keys %$leaf_symtab) {
		3794	_gv_clear *{"$pkg$name"};
		3795	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3796	}
2619	}	3797	}
2620		3798
2621	sub do_reload_perl() {	3799	sub do_reload_perl() {
2622	# can/must only be called in main	3800	# can/must only be called in main
2623	if ($Coro::current != $Coro::main) {	3801	if (in_main) {
2624	warn "can only reload from main coroutine";	3802	warn "can only reload from main coroutine";
2625	return;	3803	return;
2626	}	3804	}
2627		3805
		3806	return if $RELOAD++;
		3807
		3808	my $t1 = AE::time;
		3809
		3810	while ($RELOAD) {
2628	warn "reloading...";	3811	warn "reloading...";
2629		3812
2630	warn "entering sync_job";	3813	warn "entering sync_job";
2631		3814
2632	cf::sync_job {	3815	cf::sync_job {
2633	cf::write_runtime; # external watchdog should not bark	3816	cf::write_runtime_sync; # external watchdog should not bark
2634	cf::emergency_save;	3817	cf::emergency_save;
2635	cf::write_runtime; # external watchdog should not bark	3818	cf::write_runtime_sync; # external watchdog should not bark
2636		3819
2637	warn "syncing database to disk";	3820	warn "syncing database to disk";
2638	BDB::db_env_txn_checkpoint $DB_ENV;	3821	BDB::db_env_txn_checkpoint $DB_ENV;
2639		3822
2640	# if anything goes wrong in here, we should simply crash as we already saved	3823	# if anything goes wrong in here, we should simply crash as we already saved
2641		3824
2642	warn "cancelling all WF_AUTOCANCEL watchers";
2643	for (Event::all_watchers) {
2644	$_->cancel if $_->data & WF_AUTOCANCEL;
2645	}
2646
2647	warn "flushing outstanding aio requests";	3825	warn "flushing outstanding aio requests";
2648	for (;;) {
2649	BDB::flush;
2650	IO::AIO::flush;
2651	Coro::cede;
2652	last unless IO::AIO::nreqs || BDB::nreqs;	3826	while (IO::AIO::nreqs || BDB::nreqs) {
2653	warn "iterate...";	3827	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2654	}
2655
2656	++$RELOAD;
2657
2658	warn "cancelling all extension coros";
2659	$_->cancel for values %EXT_CORO;
2660	%EXT_CORO = ();
2661
2662	warn "removing commands";
2663	%COMMAND = ();
2664
2665	warn "removing ext commands";
2666	%EXTCMD = ();
2667
2668	warn "unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";
2671
2672	if (my $cb = $pkg->can ("unload")) {
2673	eval {
2674	$cb->($pkg);
2675	1
2676	} or warn "$pkg unloaded, but with errors: $@";
2677	}	3828	}
2678		3829
2679	warn "... nuking $pkg";	3830	warn "cancelling all extension coros";
2680	Symbol::delete_package $pkg;	3831	$_->cancel for values %EXT_CORO;
2681	}	3832	%EXT_CORO = ();
2682		3833
2683	warn "unloading all perl modules loaded from $LIBDIR";	3834	warn "removing commands";
2684	while (my ($k, $v) = each %INC) {	3835	%COMMAND = ();
2685	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2686		3836
		3837	warn "removing ext/exti commands";
		3838	%EXTCMD = ();
		3839	%EXTICMD = ();
		3840
		3841	warn "unloading/nuking all extensions";
		3842	for my $pkg (@EXTS) {
2687	warn "... unloading $k";	3843	warn "... unloading $pkg";
2688	delete $INC{$k};
2689		3844
2690	$k =~ s/\.pm$//;
2691	$k =~ s/\//::/g;
2692
2693	if (my $cb = $k->can ("unload_module")) {	3845	if (my $cb = $pkg->can ("unload")) {
		3846	eval {
2694	$cb->();	3847	$cb->($pkg);
		3848	1
		3849	} or warn "$pkg unloaded, but with errors: $@";
		3850	}
		3851
		3852	warn "... clearing $pkg";
		3853	clear_package $pkg;
2695	}	3854	}
2696		3855
2697	Symbol::delete_package $k;	3856	warn "unloading all perl modules loaded from $LIBDIR";
		3857	while (my ($k, $v) = each %INC) {
		3858	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3859
		3860	warn "... unloading $k";
		3861	delete $INC{$k};
		3862
		3863	$k =~ s/\.pm$//;
		3864	$k =~ s/\//::/g;
		3865
		3866	if (my $cb = $k->can ("unload_module")) {
		3867	$cb->();
		3868	}
		3869
		3870	clear_package $k;
2698	}	3871	}
2699		3872
2700	warn "getting rid of safe::, as good as possible";	3873	warn "getting rid of safe::, as good as possible";
2701	Symbol::delete_package "safe::$_"	3874	clear_package "safe::$_"
2702	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3875	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2703		3876
2704	warn "unloading cf.pm \"a bit\"";	3877	warn "unloading cf.pm \"a bit\"";
2705	delete $INC{"cf.pm"};	3878	delete $INC{"cf.pm"};
		3879	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2706		3880
2707	# don't, removes xs symbols, too,	3881	# don't, removes xs symbols, too,
2708	# and global variables created in xs	3882	# and global variables created in xs
2709	#Symbol::delete_package __PACKAGE__;	3883	#clear_package __PACKAGE__;
2710		3884
2711	warn "unload completed, starting to reload now";	3885	warn "unload completed, starting to reload now";
2712		3886
2713	warn "reloading cf.pm";	3887	warn "reloading cf.pm";
2714	require cf;	3888	require cf;
2715	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3889	cf::_connect_to_perl_1;
2716		3890
2717	warn "loading config and database again";	3891	warn "loading config and database again";
2718	cf::cfg_load;	3892	cf::reload_config;
2719		3893
2720	warn "loading extensions";	3894	warn "loading extensions";
2721	cf::load_extensions;	3895	cf::load_extensions;
2722		3896
		3897	if ($REATTACH_ON_RELOAD) {
2723	warn "reattaching attachments to objects/players";	3898	warn "reattaching attachments to objects/players";
2724	_global_reattach; # objects, sockets	3899	_global_reattach; # objects, sockets
2725	warn "reattaching attachments to maps";	3900	warn "reattaching attachments to maps";
2726	reattach $_ for values %MAP;	3901	reattach $_ for values %MAP;
2727	warn "reattaching attachments to players";	3902	warn "reattaching attachments to players";
2728	reattach $_ for values %PLAYER;	3903	reattach $_ for values %PLAYER;
		3904	}
2729		3905
		3906	warn "running post_init jobs";
		3907	(pop @POST_INIT)->(1) while @POST_INIT;
		3908
2730	warn "leaving sync_job";	3909	warn "leaving sync_job";
2731		3910
2732	1	3911	1
2733	} or do {	3912	} or do {
2734	warn $@;	3913	warn $@;
2735	warn "error while reloading, exiting.";	3914	cf::cleanup "error while reloading, exiting.";
2736	exit 1;
2737	};	3915	};
2738		3916
2739	warn "reloaded";	3917	warn "reloaded";
		3918	--$RELOAD;
		3919	}
		3920
		3921	$t1 = AE::time - $t1;
		3922	warn "reload completed in ${t1}s\n";
2740	};	3923	};
2741		3924
2742	our $RELOAD_WATCHER; # used only during reload	3925	our $RELOAD_WATCHER; # used only during reload
2743		3926
2744	sub reload_perl() {	3927	sub reload_perl() {
2745	# doing reload synchronously and two reloads happen back-to-back,	3928	# doing reload synchronously and two reloads happen back-to-back,
2746	# coro crashes during coro_state_free->destroy here.	3929	# coro crashes during coro_state_free->destroy here.
2747		3930
2748	$RELOAD_WATCHER ||= Event->timer (	3931	$RELOAD_WATCHER ||= cf::async {
2749	reentrant => 0,	3932	Coro::AIO::aio_wait cache_extensions;
2750	after => 0,	3933
2751	data => WF_AUTOCANCEL,	3934	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2752	cb => sub {
2753	do_reload_perl;	3935	do_reload_perl;
2754	undef $RELOAD_WATCHER;	3936	undef $RELOAD_WATCHER;
2755	},	3937	};
2756	);	3938	};
2757	}	3939	}
2758		3940
2759	register_command "reload" => sub {	3941	register_command "reload" => sub {
2760	my ($who, $arg) = @_;	3942	my ($who, $arg) = @_;
2761		3943
2762	if ($who->flag (FLAG_WIZ)) {	3944	if ($who->flag (FLAG_WIZ)) {
2763	$who->message ("reloading server.");	3945	$who->message ("reloading server.");
		3946	async {
		3947	$Coro::current->{desc} = "perl_reload";
2764	async { reload_perl };	3948	reload_perl;
		3949	};
2765	}	3950	}
2766	};	3951	};
2767		3952
2768	unshift @INC, $LIBDIR;	3953	unshift @INC, $LIBDIR;
2769		3954
…		…
2771		3956
2772	our @WAIT_FOR_TICK;	3957	our @WAIT_FOR_TICK;
2773	our @WAIT_FOR_TICK_BEGIN;	3958	our @WAIT_FOR_TICK_BEGIN;
2774		3959
2775	sub wait_for_tick {	3960	sub wait_for_tick {
2776	return unless $TICK_WATCHER->is_active;
2777	return if $Coro::current == $Coro::main;	3961	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2778		3962
2779	my $signal = new Coro::Signal;	3963	my $signal = new Coro::Signal;
2780	push @WAIT_FOR_TICK, $signal;	3964	push @WAIT_FOR_TICK, $signal;
2781	$signal->wait;	3965	$signal->wait;
2782	}	3966	}
2783		3967
2784	sub wait_for_tick_begin {	3968	sub wait_for_tick_begin {
2785	return unless $TICK_WATCHER->is_active;
2786	return if $Coro::current == $Coro::main;	3969	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2787		3970
2788	my $signal = new Coro::Signal;	3971	my $signal = new Coro::Signal;
2789	push @WAIT_FOR_TICK_BEGIN, $signal;	3972	push @WAIT_FOR_TICK_BEGIN, $signal;
2790	$signal->wait;	3973	$signal->wait;
2791	}	3974	}
2792		3975
2793	$TICK_WATCHER = Event->timer (	3976	sub tick {
2794	reentrant => 0,
2795	parked => 1,
2796	prio => 0,
2797	at => $NEXT_TICK || $TICK,
2798	data => WF_AUTOCANCEL,
2799	cb => sub {
2800	if ($Coro::current != $Coro::main) {	3977	if ($Coro::current != $Coro::main) {
2801	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3978	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2802	unless ++$bug_warning > 10;	3979	unless ++$bug_warning > 10;
2803	return;	3980	return;
2804	}	3981	}
2805		3982
2806	$NOW = Event::time;
2807
2808	cf::server_tick; # one server iteration	3983	cf::server_tick; # one server iteration
2809		3984
2810	$RUNTIME += $TICK;	3985	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2811	$NEXT_TICK += $TICK;
2812		3986
2813	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3987	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2814	$NEXT_RUNTIME_WRITE = $NOW + 10;	3988	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2815	Coro::async_pool {	3989	Coro::async_pool {
		3990	$Coro::current->{desc} = "runtime saver";
2816	write_runtime	3991	write_runtime_sync
2817	or warn "ERROR: unable to write runtime file: $!";	3992	or warn "ERROR: unable to write runtime file: $!";
2818	};
2819	}	3993	};
		3994	}
2820		3995
2821	# my $AFTER = Event::time;
2822	# warn $AFTER - $NOW;#d#
2823
2824	# if we are delayed by four ticks or more, skip them all
2825	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2826
2827	$TICK_WATCHER->at ($NEXT_TICK);
2828	$TICK_WATCHER->start;
2829
2830	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3996	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2831	$sig->send;	3997	$sig->send;
2832	}	3998	}
2833	while (my $sig = shift @WAIT_FOR_TICK) {	3999	while (my $sig = shift @WAIT_FOR_TICK) {
2834	$sig->send;	4000	$sig->send;
2835	}
2836
2837	_post_tick;
2838	},	4001	}
2839	);	4002
		4003	$LOAD = ($NOW - $TICK_START) / $TICK;
		4004	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4005
		4006	if (0) {
		4007	if ($NEXT_TICK) {
		4008	my $jitter = $TICK_START - $NEXT_TICK;
		4009	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4010	warn "jitter $JITTER\n";#d#
		4011	}
		4012	}
		4013	}
2840		4014
2841	{	4015	{
2842	BDB::max_poll_time $TICK * 0.1;	4016	# configure BDB
2843	$BDB_POLL_WATCHER = Event->io (	4017
2844	reentrant => 0,
2845	fd => BDB::poll_fileno,
2846	poll => 'r',
2847	prio => 0,
2848	data => WF_AUTOCANCEL,
2849	cb => \&BDB::poll_cb,
2850	);
2851	BDB::min_parallel 8;	4018	BDB::min_parallel 16;
2852		4019	BDB::max_poll_reqs $TICK * 0.1;
2853	BDB::set_sync_prepare {	4020	$AnyEvent::BDB::WATCHER->priority (1);
2854	my $status;
2855	my $current = $Coro::current;
2856	(
2857	sub {
2858	$status = $!;
2859	$current->ready; undef $current;
2860	},
2861	sub {
2862	Coro::schedule while defined $current;
2863	$! = $status;
2864	},
2865	)
2866	};
2867		4021
2868	unless ($DB_ENV) {	4022	unless ($DB_ENV) {
2869	$DB_ENV = BDB::db_env_create;	4023	$DB_ENV = BDB::db_env_create;
		4024	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4025	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4026	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4027	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4028	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2870		4029
2871	cf::sync_job {	4030	cf::sync_job {
2872	eval {	4031	eval {
2873	BDB::db_env_open	4032	BDB::db_env_open
2874	$DB_ENV,	4033	$DB_ENV,
2875	$BDB_ENV_DIR,	4034	$BDBDIR,
2876	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4035	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2877	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4036	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2878	0666;	4037	0666;
2879		4038
2880	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4039	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2881
2882	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2883	$DB_ENV->set_lk_detect;
2884	};	4040	};
2885		4041
2886	cf::cleanup "db_env_open(db): $@" if $@;	4042	cf::cleanup "db_env_open(db): $@" if $@;
2887	};	4043	};
2888	}	4044	}
		4045
		4046	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4047	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4048	};
		4049	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4050	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4051	};
		4052	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4053	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4054	};
2889	}	4055	}
2890		4056
2891	{	4057	{
		4058	# configure IO::AIO
		4059
2892	IO::AIO::min_parallel 8;	4060	IO::AIO::min_parallel 8;
2893
2894	undef $Coro::AIO::WATCHER;
2895	IO::AIO::max_poll_time $TICK * 0.1;	4061	IO::AIO::max_poll_time $TICK * 0.1;
2896	$AIO_POLL_WATCHER = Event->io (	4062	undef $AnyEvent::AIO::WATCHER;
2897	reentrant => 0,	4063	}
2898	data => WF_AUTOCANCEL,	4064
2899	fd => IO::AIO::poll_fileno,	4065	my $_log_backtrace;
2900	poll => 'r',	4066
2901	prio => 6,	4067	sub _log_backtrace {
2902	cb => \&IO::AIO::poll_cb,	4068	my ($msg, @addr) = @_;
2903	);	4069
		4070	$msg =~ s/\n//;
		4071
		4072	# limit the # of concurrent backtraces
		4073	if ($_log_backtrace < 2) {
		4074	++$_log_backtrace;
		4075	my $perl_bt = Carp::longmess $msg;
		4076	async {
		4077	$Coro::current->{desc} = "abt $msg";
		4078
		4079	my @bt = fork_call {
		4080	@addr = map { sprintf "%x", $_ } @addr;
		4081	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4082	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4083	or die "addr2line: $!";
		4084
		4085	my @funcs;
		4086	my @res = <$fh>;
		4087	chomp for @res;
		4088	while (@res) {
		4089	my ($func, $line) = splice @res, 0, 2, ();
		4090	push @funcs, "[$func] $line";
		4091	}
		4092
		4093	@funcs
		4094	};
		4095
		4096	LOG llevInfo, "[ABT] $perl_bt\n";
		4097	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4098	LOG llevInfo, "[ABT] $_\n" for @bt;
		4099	--$_log_backtrace;
		4100	};
		4101	} else {
		4102	LOG llevInfo, "[ABT] $msg\n";
		4103	LOG llevInfo, "[ABT] [suppressed]\n";
		4104	}
2904	}	4105	}
2905		4106
2906	# load additional modules	4107	# load additional modules
2907	use cf::pod;	4108	require "cf/$_.pm" for @EXTRA_MODULES;
		4109	cf::_connect_to_perl_2;
2908		4110
2909	END { cf::emergency_save }	4111	END { cf::emergency_save }
2910		4112
2911	1	4113	1
2912		4114

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