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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.250 by root, Wed Apr 18 14:24:10 2007 UTC vs.
Revision 1.494 by root, Mon Oct 26 05:18:00 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use 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;	58	use Digest::MD5;
28	use Fcntl;	59	use Fcntl;
29	use YAML::Syck ();	60	use YAML::XS ();
30	use IO::AIO 2.32 ();	61	use IO::AIO ();
31	use Time::HiRes;	62	use Time::HiRes;
32	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
		65
		66	AnyEvent::detect;
33		67
34	# configure various modules to our taste	68	# configure various modules to our taste
35	#	69	#
36	$Storable::canonical = 1; # reduce rsync transfers	70	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	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	77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		78
40	$Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
41		80	$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		81
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		83
49	our %COMMAND = ();	84	our %COMMAND = ();
50	our %COMMAND_TIME = ();	85	our %COMMAND_TIME = ();
51		86
52	our @EXTS = (); # list of extension package names	87	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	88	our %EXTCMD = ();
		89	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	90	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	91	our %EXT_MAP = (); # pluggable maps
56		92
57	our $RELOAD; # number of reloads so far	93	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	94	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	95	our @REFLECT; # set by XS
		96	our %REFLECT; # set by us
		97
		98	our $CONFDIR = confdir;
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103	our $LOCALDIR = localdir;
		104	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		105	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		106	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		107	our $RANDOMDIR = "$LOCALDIR/random";
		108	our $BDBDIR = "$LOCALDIR/db";
		109	our $PIDFILE = "$LOCALDIR/pid";
		110	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		111
		112	our %RESOURCE;
60		113
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	114	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	115	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	116	our $NEXT_TICK;
66	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	117	our $USE_FSYNC = 1; # use fsync to write maps - default on
68		118
		119	our $BDB_DEADLOCK_WATCHER;
		120	our $BDB_CHECKPOINT_WATCHER;
69	our $BDB_POLL_WATCHER;	121	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	122	our $DB_ENV;
		123
		124	our @EXTRA_MODULES = qw(pod match mapscript);
71		125
72	our %CFG;	126	our %CFG;
73		127
74	our $UPTIME; $UPTIME ||= time;	128	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	129	our $RUNTIME;
		130	our $NOW;
76		131
77	our %PLAYER; # all users	132	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	133	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	134	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		135
83	# used to convert map paths into valid unix filenames by replacing / by ∕	136	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	137	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		138
		139	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		140	our $LOADAVG; # same thing, but with alpha-smoothing
		141	our $JITTER; # average jitter
		142	our $TICK_START; # for load detecting purposes
		143
		144	our @POST_INIT;
		145
		146	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		147	our $REALLY_UNLOOP; # never set to true, please :)
		148
86	binmode STDOUT;	149	binmode STDOUT;
87	binmode STDERR;	150	binmode STDERR;
88		151
89	# read virtual server time, if available	152	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	153	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	154	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	155	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	156	$RUNTIME = <$fh> + 0.;
94	}	157	}
95		158
96	mkdir cf::localdir;	159	eval "sub TICK() { $TICK } 1" or die;
97	mkdir cf::localdir . "/" . cf::playerdir;	160
98	mkdir cf::localdir . "/" . cf::tmpdir;	161	mkdir $_
99	mkdir cf::localdir . "/" . cf::uniquedir;	162	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		163
103	our $EMERGENCY_POSITION;	164	our $EMERGENCY_POSITION;
104		165
105	sub cf::map::normalise;	166	sub cf::map::normalise;
		167
		168	#############################################################################
		169
		170	%REFLECT = ();
		171	for (@REFLECT) {
		172	my $reflect = JSON::XS::decode_json $_;
		173	$REFLECT{$reflect->{class}} = $reflect;
		174	}
		175
		176	# this is decidedly evil
		177	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
106		178
107	#############################################################################	179	#############################################################################
108		180
109	=head2 GLOBAL VARIABLES	181	=head2 GLOBAL VARIABLES
110		182
…		…
117	=item $cf::RUNTIME	189	=item $cf::RUNTIME
118		190
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	191	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	192	every server tick.
121		193
122	=item $cf::LIBDIR	194	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		195	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		196	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		197
124	The perl library directory, where extensions and cf-specific modules can	198	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	199	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		200	unique-items directory, player file directory, random maps directory and
		201	database environment.
126		202
127	=item $cf::NOW	203	=item $cf::NOW
128		204
129	The time of the last (current) server tick.	205	The time of the last (current) server tick.
130		206
131	=item $cf::TICK	207	=item $cf::TICK
132		208
133	The interval between server ticks, in seconds.	209	The interval between server ticks, in seconds.
134		210
		211	=item $cf::LOADAVG
		212
		213	The current CPU load on the server (alpha-smoothed), as a value between 0
		214	(none) and 1 (overloaded), indicating how much time is spent on processing
		215	objects per tick. Healthy values are < 0.5.
		216
		217	=item $cf::LOAD
		218
		219	The raw value load value from the last tick.
		220
135	=item %cf::CFG	221	=item %cf::CFG
136		222
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	223	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	224	from wherever your confdir points to.
139		225
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	226	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		227
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	228	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	229	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.	230	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		231
		232	=item @cf::INVOKE_RESULTS
		233
		234	This array contains the results of the last C<invoke ()> call. When
		235	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		236	that call.
		237
		238	=item %cf::REFLECT
		239
		240	Contains, for each (C++) class name, a hash reference with information
		241	about object members (methods, scalars, arrays and flags) and other
		242	metadata, which is useful for introspection.
		243
146	=back	244	=back
147		245
148	=cut	246	=cut
149		247
150	BEGIN {	248	$Coro::State::WARNHOOK = sub {
151	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	249	my $msg = join "", @_;
153		250
154	$msg .= "\n"	251	$msg .= "\n"
155	unless $msg =~ /\n$/;	252	unless $msg =~ /\n$/;
156		253
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	254	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		255
159	utf8::encode $msg;
160	LOG llevError, $msg;	256	LOG llevError, $msg;
161	};	257	};
162	}	258
		259	$Coro::State::DIEHOOK = sub {
		260	return unless $^S eq 0; # "eq", not "=="
		261
		262	warn Carp::longmess $_[0];
		263
		264	if ($Coro::current == $Coro::main) {#d#
		265	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		266	return;#d#
		267	}#d#
		268
		269	# kill coroutine otherwise
		270	Coro::terminate
		271	};
163		272
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	273	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	274	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	275	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	276	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	277	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		278	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	279	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		280
171	# we bless all objects into (empty) derived classes to force a method lookup	281	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	282	# within the Safe compartment.
173	for my $pkg (qw(	283	for my $pkg (qw(
174	cf::global cf::attachable	284	cf::global cf::attachable
175	cf::object cf::object::player	285	cf::object cf::object::player
176	cf::client cf::player	286	cf::client cf::player
177	cf::arch cf::living	287	cf::arch cf::living
		288	cf::map cf::mapspace
178	cf::map cf::party cf::region	289	cf::party cf::region
179	)) {	290	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	291	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	292	}
183		293
184	$Event::DIED = sub {	294	$EV::DIED = sub {
185	warn "error in event callback: @_";	295	Carp::cluck "error in event callback: @_";
186	};	296	};
		297
		298	#############################################################################
187		299
188	=head2 UTILITY FUNCTIONS	300	=head2 UTILITY FUNCTIONS
189		301
190	=over 4	302	=over 4
191		303
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	322	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	323	$d
212	} || "[unable to dump $_[0]: '$@']";	324	} || "[unable to dump $_[0]: '$@']";
213	}	325	}
214		326
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	327	=item $ref = cf::decode_json $json
218		328
219	Converts a JSON string into the corresponding perl data structure.	329	Converts a JSON string into the corresponding perl data structure.
220		330
221	=item $json = cf::to_json $ref	331	=item $json = cf::encode_json $ref
222		332
223	Converts a perl data structure into its JSON representation.	333	Converts a perl data structure into its JSON representation.
224		334
		335	=cut
		336
		337	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		338
		339	sub encode_json($) { $json_coder->encode ($_[0]) }
		340	sub decode_json($) { $json_coder->decode ($_[0]) }
		341
		342	=item cf::post_init { BLOCK }
		343
		344	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		345	but I<before> the server starts ticking again.
		346
		347	The cdoeblock will have a single boolean argument to indicate whether this
		348	is a reload or not.
		349
		350	=cut
		351
		352	sub post_init(&) {
		353	push @POST_INIT, shift;
		354	}
		355
225	=item cf::lock_wait $string	356	=item cf::lock_wait $string
226		357
227	Wait until the given lock is available. See cf::lock_acquire.	358	Wait until the given lock is available. See cf::lock_acquire.
228		359
229	=item my $lock = cf::lock_acquire $string	360	=item my $lock = cf::lock_acquire $string
230		361
231	Wait until the given lock is available and then acquires it and returns	362	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,	363	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	364	for example when the coroutine gets canceled), the lock is automatically
234	returned.	365	returned.
235		366
		367	Locks are *not* recursive, locking from the same coro twice results in a
		368	deadlocked coro.
		369
236	Lock names should begin with a unique identifier (for example, cf::map::find	370	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	371	uses map_find and cf::map::load uses map_load).
238		372
239	=cut	373	=item $locked = cf::lock_active $string
240		374
241	our %LOCK;	375	Return true if the lock is currently active, i.e. somebody has locked it.
		376
		377	=cut
		378
		379	our $LOCKS = new Coro::SemaphoreSet;
242		380
243	sub lock_wait($) {	381	sub lock_wait($) {
244	my ($key) = @_;	382	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	383	}
252		384
253	sub lock_acquire($) {	385	sub lock_acquire($) {
254	my ($key) = @_;	386	$LOCKS->guard ($_[0])
		387	}
255		388
256	# wait, to be sure we are not locked	389	sub lock_active($) {
257	lock_wait $key;	390	$LOCKS->count ($_[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	}	391	}
266		392
267	sub freeze_mainloop {	393	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	394	tick_inhibit_inc;
269		395
270	my $guard = Coro::guard {	396	&Guard::guard (\&tick_inhibit_dec);
271	$TICK_WATCHER->start;	397	}
		398
		399	=item cf::periodic $interval, $cb
		400
		401	Like EV::periodic, but randomly selects a starting point so that the actions
		402	get spread over timer.
		403
		404	=cut
		405
		406	sub periodic($$) {
		407	my ($interval, $cb) = @_;
		408
		409	my $start = rand List::Util::min 180, $interval;
		410
		411	EV::periodic $start, $interval, 0, $cb
		412	}
		413
		414	=item cf::get_slot $time[, $priority[, $name]]
		415
		416	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		417	This call blocks and returns only when you have at least C<$time> seconds
		418	of cpu time till the next tick. The slot is only valid till the next cede.
		419
		420	The optional C<$name> can be used to identify the job to run. It might be
		421	used for statistical purposes and should identify the same time-class.
		422
		423	Useful for short background jobs.
		424
		425	=cut
		426
		427	our @SLOT_QUEUE;
		428	our $SLOT_QUEUE;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435
		436	while () {
		437	next_job:
		438	my $avail = cf::till_tick;
		439	if ($avail > 0.01) {
		440	for (0 .. $#SLOT_QUEUE) {
		441	if ($SLOT_QUEUE[$_][0] < $avail) {
		442	my $job = splice @SLOT_QUEUE, $_, 1, ();
		443	$job->[2]->send;
		444	Coro::cede;
		445	goto next_job;
		446	}
		447	}
		448	}
		449
		450	if (@SLOT_QUEUE) {
		451	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		452	push @cf::WAIT_FOR_TICK, $signal;
		453	$signal->wait;
		454	} else {
		455	Coro::schedule;
		456	}
272	};	457	}
273	$TICK_WATCHER->stop;	458	};
274	$guard	459
		460	sub get_slot($;$$) {
		461	return if tick_inhibit || $Coro::current == $Coro::main;
		462
		463	my ($time, $pri, $name) = @_;
		464
		465	$time = $TICK * .6 if $time > $TICK * .6;
		466	my $sig = new Coro::Signal;
		467
		468	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		469	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		470	$SLOT_QUEUE->ready;
		471	$sig->wait;
275	}	472	}
276		473
277	=item cf::async { BLOCK }	474	=item cf::async { BLOCK }
278		475
279	Currently the same as Coro::async_pool, meaning you cannot use	476	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		481
285	BEGIN { *async = \&Coro::async_pool }	482	BEGIN { *async = \&Coro::async_pool }
286		483
287	=item cf::sync_job { BLOCK }	484	=item cf::sync_job { BLOCK }
288		485
289	The design of crossfire+ requires that the main coro ($Coro::main) is	486	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	487	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	488	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		489	acceptable.
292		490
293	If it must be done, put the blocking parts into C<sync_job>. This will run	491	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	492	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	493	server will be frozen during this time, so the block should either finish
296	fast or be very important.	494	fast or be very important.
…		…
299		497
300	sub sync_job(&) {	498	sub sync_job(&) {
301	my ($job) = @_;	499	my ($job) = @_;
302		500
303	if ($Coro::current == $Coro::main) {	501	if ($Coro::current == $Coro::main) {
		502	my $time = EV::time;
		503
304	# this is the main coro, too bad, we have to block	504	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	505	# till the operation succeeds, freezing the server :/
306		506
307	# TODO: use suspend/resume instead	507	LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	508
309	my $freeze_guard = freeze_mainloop;	509	my $freeze_guard = freeze_mainloop;
310		510
311	my $busy = 1;	511	my $busy = 1;
312	my @res;	512	my @res;
313		513
314	(async {	514	(async {
		515	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	516	@res = eval { $job->() };
316	warn $@ if $@;	517	warn $@ if $@;
317	undef $busy;	518	undef $busy;
318	})->prio (Coro::PRIO_MAX);	519	})->prio (Coro::PRIO_MAX);
319		520
320	while ($busy) {	521	while ($busy) {
321	Coro::cede or Event::one_event;	522	if (Coro::nready) {
		523	Coro::cede_notself;
		524	} else {
		525	EV::loop EV::LOOP_ONESHOT;
322	}	526	}
		527	}
		528
		529	my $time = EV::time - $time;
		530
		531	$TICK_START += $time; # do not account sync jobs to server load
323		532
324	wantarray ? @res : $res[0]	533	wantarray ? @res : $res[0]
325	} else {	534	} else {
326	# we are in another coroutine, how wonderful, everything just works	535	# we are in another coroutine, how wonderful, everything just works
327		536
…		…
347	$EXT_CORO{$coro+0} = $coro;	556	$EXT_CORO{$coro+0} = $coro;
348		557
349	$coro	558	$coro
350	}	559	}
351		560
352	sub write_runtime {	561	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		562
355	my $runtime = cf::localdir . "/runtime";	563	Executes the given code block with the given arguments in a seperate
		564	process, returning the results. Everything must be serialisable with
		565	Coro::Storable. May, of course, block. Note that the executed sub may
		566	never block itself or use any form of event handling.
356		567
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	568	=cut
358	or return;
359		569
360	my $value = $cf::RUNTIME + 90 + 10;	570	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	571	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		572
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	573	# we seemingly have to make a local copy of the whole thing,
365	and return;	574	# otherwise perl prematurely frees the stuff :/
		575	# TODO: investigate and fix (likely this will be rather laborious)
366		576
367	# always fsync - this file is important	577	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	578	reset_signals;
369	and return;	579	&$cb
		580	}, @args;
370		581
371	close $fh	582	wantarray ? @res : $res[-1]
372	or return;	583	}
373		584
374	aio_rename "$runtime~", $runtime	585	=item $coin = coin_from_name $name
375	and return;
376		586
		587	=cut
		588
		589	our %coin_alias = (
		590	"silver" => "silvercoin",
		591	"silvercoin" => "silvercoin",
		592	"silvercoins" => "silvercoin",
		593	"gold" => "goldcoin",
		594	"goldcoin" => "goldcoin",
		595	"goldcoins" => "goldcoin",
		596	"platinum" => "platinacoin",
		597	"platinumcoin" => "platinacoin",
		598	"platinumcoins" => "platinacoin",
		599	"platina" => "platinacoin",
		600	"platinacoin" => "platinacoin",
		601	"platinacoins" => "platinacoin",
		602	"royalty" => "royalty",
		603	"royalties" => "royalty",
		604	);
		605
		606	sub coin_from_name($) {
		607	$coin_alias{$_[0]}
		608	? cf::arch::find $coin_alias{$_[0]}
		609	: undef
		610	}
		611
		612	=item $value = cf::db_get $family => $key
		613
		614	Returns a single value from the environment database.
		615
		616	=item cf::db_put $family => $key => $value
		617
		618	Stores the given C<$value> in the family. It can currently store binary
		619	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		620
		621	=item $db = cf::db_table "name"
		622
		623	Create and/or open a new database table. The string must not be "db" and must be unique
		624	within each server.
		625
		626	=cut
		627
		628	sub db_table($) {
		629	my ($name) = @_;
		630	my $db = BDB::db_create $DB_ENV;
		631
		632	eval {
		633	$db->set_flags (BDB::CHKSUM);
		634
		635	utf8::encode $name;
		636	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		637	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		638	cf::cleanup "db_open(db): $!" if $!;
		639	};
		640	cf::cleanup "db_open(db): $@" if $@;
		641
		642	$db
		643	}
		644
		645	our $DB;
		646
		647	sub db_init {
		648	cf::sync_job {
		649	$DB ||= db_table "db";
		650	};
		651	}
		652
		653	sub db_get($$) {
		654	my $key = "$_[0]/$_[1]";
		655
		656	cf::sync_job {
		657	BDB::db_get $DB, undef, $key, my $data;
		658
		659	$! ? ()
		660	: $data
377	1	661	}
		662	}
		663
		664	sub db_put($$$) {
		665	BDB::dbreq_pri 4;
		666	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		667	}
		668
		669	=item cf::cache $id => [$paths...], $processversion => $process
		670
		671	Generic caching function that returns the value of the resource $id,
		672	caching and regenerating as required.
		673
		674	This function can block.
		675
		676	=cut
		677
		678	sub cache {
		679	my ($id, $src, $processversion, $process) = @_;
		680
		681	my $meta =
		682	join "\x00",
		683	$processversion,
		684	map {
		685	aio_stat $_
		686	and Carp::croak "$_: $!";
		687
		688	($_, (stat _)[7,9])
		689	} @$src;
		690
		691	my $dbmeta = db_get cache => "$id/meta";
		692	if ($dbmeta ne $meta) {
		693	# changed, we may need to process
		694
		695	my @data;
		696	my $md5;
		697
		698	for (0 .. $#$src) {
		699	0 <= aio_load $src->[$_], $data[$_]
		700	or Carp::croak "$src->[$_]: $!";
		701	}
		702
		703	# if processing is expensive, check
		704	# checksum first
		705	if (1) {
		706	$md5 =
		707	join "\x00",
		708	$processversion,
		709	map {
		710	cf::cede_to_tick;
		711	($src->[$_], Digest::MD5::md5_hex $data[$_])
		712	} 0.. $#$src;
		713
		714
		715	my $dbmd5 = db_get cache => "$id/md5";
		716	if ($dbmd5 eq $md5) {
		717	db_put cache => "$id/meta", $meta;
		718
		719	return db_get cache => "$id/data";
		720	}
		721	}
		722
		723	my $t1 = Time::HiRes::time;
		724	my $data = $process->(\@data);
		725	my $t2 = Time::HiRes::time;
		726
		727	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		728
		729	db_put cache => "$id/data", $data;
		730	db_put cache => "$id/md5" , $md5;
		731	db_put cache => "$id/meta", $meta;
		732
		733	return $data;
		734	}
		735
		736	db_get cache => "$id/data"
378	}	737	}
379		738
380	=item cf::datalog type => key => value, ...	739	=item cf::datalog type => key => value, ...
381		740
382	Log a datalog packet of the given type with the given key-value pairs.	741	Log a datalog packet of the given type with the given key-value pairs.
…		…
394		753
395	#############################################################################	754	#############################################################################
396		755
397	=head2 ATTACHABLE OBJECTS	756	=head2 ATTACHABLE OBJECTS
398		757
399	Many objects in crossfire are so-called attachable objects. That means you can	758	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")	759	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	760	to it. All such attachable objects support the following methods.
402		761
403	In the following description, CLASS can be any of C<global>, C<object>	762	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	763	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	764	Deliantra).
406		765
407	=over 4	766	=over 4
408		767
409	=item $attachable->attach ($attachment, key => $value...)	768	=item $attachable->attach ($attachment, key => $value...)
410		769
…		…
454	=item cf::CLASS::attachment $name, ...	813	=item cf::CLASS::attachment $name, ...
455		814
456	Register an attachment by C<$name> through which attachable objects of the	815	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	816	given CLASS can refer to this attachment.
458		817
459	Some classes such as crossfire maps and objects can specify attachments	818	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.	819	that are attached at load/instantiate time, thus the need for a name.
461		820
462	These calls expect any number of the following handler/hook descriptions:	821	These calls expect any number of the following handler/hook descriptions:
463		822
464	=over 4	823	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	932	$registry = $CB_TYPE[$object_type] ||= [];
574		933
575	} elsif ($type eq "subtype") {	934	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	935	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	936	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	937	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		938
580	} elsif ($type eq "package") {	939	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	940	my $pkg = shift @arg;
582		941
583	while (my ($name, $id) = each %cb_id) {	942	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	971	_attach $registry, $klass, @attach;
613	}	972	}
614		973
615	$obj->{$name} = \%arg;	974	$obj->{$name} = \%arg;
616	} else {	975	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	976	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	977	}
619		978
620	$obj->{_attachment}{$name} = undef;	979	$obj->{_attachment}{$name} = undef;
621	}	980	}
622		981
…		…
624	if (ref $_[0]) {	983	if (ref $_[0]) {
625	_object_attach @_;	984	_object_attach @_;
626	} else {	985	} else {
627	_attach shift->_attach_registry, @_;	986	_attach shift->_attach_registry, @_;
628	}	987	}
		988	_recalc_want;
629	};	989	};
630		990
631	# all those should be optimised	991	# all those should be optimised
632	sub cf::attachable::detach {	992	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	993	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	996	delete $obj->{_attachment}{$name};
637	reattach ($obj);	997	reattach ($obj);
638	} else {	998	} else {
639	Carp::croak "cannot, currently, detach class attachments";	999	Carp::croak "cannot, currently, detach class attachments";
640	}	1000	}
		1001	_recalc_want;
641	};	1002	};
642		1003
643	sub cf::attachable::attached {	1004	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	1005	my ($obj, $name) = @_;
645		1006
…		…
660	";	1021	";
661	die if $@;	1022	die if $@;
662	}	1023	}
663		1024
664	our $override;	1025	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1026	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		1027
667	sub override {	1028	sub override {
668	$override = 1;	1029	$override = 1;
669	@invoke_results = ();	1030	@INVOKE_RESULTS = (@_);
670	}	1031	}
671		1032
672	sub do_invoke {	1033	sub do_invoke {
673	my $event = shift;	1034	my $event = shift;
674	my $callbacks = shift;	1035	my $callbacks = shift;
675		1036
676	@invoke_results = ();	1037	@INVOKE_RESULTS = ();
677		1038
678	local $override;	1039	local $override;
679		1040
680	for (@$callbacks) {	1041	for (@$callbacks) {
681	eval { &{$_->[1]} };	1042	eval { &{$_->[1]} };
…		…
690	}	1051	}
691		1052
692	0	1053	0
693	}	1054	}
694		1055
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1057
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1058	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1059
699	Generate an object-specific event with the given arguments.	1060	Generate an object-specific event with the given arguments.
700		1061
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1062	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	1063	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	1064	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1065
705	=back	1066	=back
706		1067
707	=cut	1068	=cut
708		1069
709	#############################################################################	1070	#############################################################################
710	# object support	1071	# object support
		1072
		1073	sub _object_equal($$);
		1074	sub _object_equal($$) {
		1075	my ($a, $b) = @_;
		1076
		1077	return 0 unless (ref $a) eq (ref $b);
		1078
		1079	if ("HASH" eq ref $a) {
		1080	my @ka = keys %$a;
		1081	my @kb = keys %$b;
		1082
		1083	return 0 if @ka != @kb;
		1084
		1085	for (0 .. $#ka) {
		1086	return 0 unless $ka[$_] eq $kb[$_];
		1087	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1088	}
		1089
		1090	} elsif ("ARRAY" eq ref $a) {
		1091
		1092	return 0 if @$a != @$b;
		1093
		1094	for (0 .. $#$a) {
		1095	return 0 unless _object_equal $a->[$_], $b->[$_];
		1096	}
		1097
		1098	} elsif ($a ne $b) {
		1099	return 0;
		1100	}
		1101
		1102	1
		1103	}
		1104
		1105	our $SLOW_MERGES;#d#
		1106	sub _can_merge {
		1107	my ($ob1, $ob2) = @_;
		1108
		1109	++$SLOW_MERGES;#d#
		1110
		1111	# we do the slow way here
		1112	return _object_equal $ob1, $ob2
		1113	}
711		1114
712	sub reattach {	1115	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1116	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1117	my ($obj) = @_;
715		1118
		1119	# no longer needed after getting rid of delete_package?
716	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1120	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1121
718	my $registry = $obj->registry;	1122	my $registry = $obj->registry;
719		1123
720	@$registry = ();	1124	@$registry = ();
721		1125
…		…
736	cf::attachable->attach (	1140	cf::attachable->attach (
737	prio => -1000000,	1141	prio => -1000000,
738	on_instantiate => sub {	1142	on_instantiate => sub {
739	my ($obj, $data) = @_;	1143	my ($obj, $data) = @_;
740		1144
741	$data = from_json $data;	1145	$data = decode_json $data;
742		1146
743	for (@$data) {	1147	for (@$data) {
744	my ($name, $args) = @$_;	1148	my ($name, $args) = @$_;
745		1149
746	$obj->attach ($name, %{$args || {} });	1150	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1166	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1167	my ($filename, $rdata, $objs) = @_;
764		1168
765	sync_job {	1169	sync_job {
766	if (length $$rdata) {	1170	if (length $$rdata) {
		1171	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1172	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1173	$decname, length $$rdata, scalar @$objs;
769		1174
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1175	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1176	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1177	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1178	if ($cf::USE_FSYNC) {
		1179	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;
		1180	aio_fsync $fh;
		1181	}
774	close $fh;	1182	aio_close $fh;
775		1183
776	if (@$objs) {	1184	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1185	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1186	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1187	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1188	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1189	if ($cf::USE_FSYNC) {
		1190	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;
		1191	aio_fsync $fh;
		1192	}
782	close $fh;	1193	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1194	aio_rename "$filename.pst~", "$filename.pst";
784	}	1195	}
785	} else {	1196	} else {
786	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
787	}	1198	}
788		1199
789	aio_rename "$filename~", $filename;	1200	aio_rename "$filename~", $filename;
		1201
		1202	$filename =~ s%/[^/]+$%%;
		1203	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1204	} else {
791	warn "FATAL: $filename~: $!\n";	1205	warn "unable to save objects: $filename~: $!\n";
792	}	1206	}
793	} else {	1207	} else {
794	aio_unlink $filename;	1208	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1209	aio_unlink "$filename.pst";
796	}	1210	}
797	}	1211	};
798	}	1212	}
799		1213
800	sub object_freezer_as_string {	1214	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1215	my ($rdata, $objs) = @_;
802		1216
…		…
814	or return;	1228	or return;
815		1229
816	unless (aio_stat "$filename.pst") {	1230	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1231	(aio_load "$filename.pst", $av) >= 0
818	or return;	1232	or return;
		1233
819	$av = eval { (Storable::thaw $av)->{objs} };	1234	my $st = eval { Coro::Storable::thaw $av };
		1235	$av = $st->{objs};
820	}	1236	}
821		1237
		1238	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1239	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1240	$decname, length $data, scalar @{$av || []};
		1241
824	return ($data, $av);	1242	($data, $av)
825	}	1243	}
		1244
		1245	=head2 COMMAND CALLBACKS
		1246
		1247	=over 4
		1248
		1249	=cut
826		1250
827	#############################################################################	1251	#############################################################################
828	# command handling &c	1252	# command handling &c
829		1253
830	=item cf::register_command $name => \&callback($ob,$args);	1254	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1267	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1268	}
845		1269
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1270	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1271
848	Register a callbackf ro execution when the client sends an extcmd packet.	1272	Register a callback for execution when the client sends an (synchronous)
		1273	extcmd packet. Ext commands will be processed in the order they are
		1274	received by the server, like other user commands. The first argument is
		1275	the logged-in player. Ext commands can only be processed after a player
		1276	has logged in successfully.
849		1277
850	If the callback returns something, it is sent back as if reply was being	1278	If the callback returns something, it is sent back as if reply was being
851	called.	1279	called.
852		1280
		1281	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1282
		1283	Register a callback for execution when the client sends an (asynchronous)
		1284	exticmd packet. Exti commands are processed by the server as soon as they
		1285	are received, i.e. out of order w.r.t. other commands. The first argument
		1286	is a client socket. Exti commands can be received anytime, even before
		1287	log-in.
		1288
		1289	If the callback returns something, it is sent back as if reply was being
		1290	called.
		1291
853	=cut	1292	=cut
854		1293
855	sub register_extcmd {	1294	sub register_extcmd {
856	my ($name, $cb) = @_;	1295	my ($name, $cb) = @_;
857		1296
858	$EXTCMD{$name} = $cb;	1297	$EXTCMD{$name} = $cb;
859	}	1298	}
		1299
		1300	sub register_exticmd {
		1301	my ($name, $cb) = @_;
		1302
		1303	$EXTICMD{$name} = $cb;
		1304	}
		1305
		1306	use File::Glob ();
860		1307
861	cf::player->attach (	1308	cf::player->attach (
862	on_command => sub {	1309	on_command => sub {
863	my ($pl, $name, $params) = @_;	1310	my ($pl, $name, $params) = @_;
864		1311
…		…
872	cf::override;	1319	cf::override;
873	},	1320	},
874	on_extcmd => sub {	1321	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1322	my ($pl, $buf) = @_;
876		1323
877	my $msg = eval { from_json $buf };	1324	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1325
879	if (ref $msg) {	1326	if (ref $msg) {
		1327	my ($type, $reply, @payload) =
		1328	"ARRAY" eq ref $msg
		1329	? @$msg
		1330	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1331
		1332	my @reply;
		1333
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1334	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1335	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1336	}
		1337
		1338	$pl->ext_reply ($reply, @reply)
		1339	if $reply;
		1340
885	} else {	1341	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1342	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1343	}
888		1344
889	cf::override;	1345	cf::override;
890	},	1346	},
891	);	1347	);
892		1348
		1349	# "readahead" all extensions
893	sub load_extension {	1350	sub cache_extensions {
894	my ($path) = @_;	1351	my $grp = IO::AIO::aio_group;
895		1352
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1353	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1354	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1355	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	}	1356	}
921	die $@;
922	}	1357	};
923		1358
924	push @EXTS, $pkg;	1359	$grp
925	}	1360	}
926		1361
927	sub load_extensions {	1362	sub load_extensions {
		1363	cf::sync_job {
		1364	my %todo;
		1365
928	for my $ext (<$LIBDIR/*.ext>) {	1366	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1367	next unless -r $path;
930	eval {	1368
931	load_extension $ext;	1369	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1370	my $base = $1;
		1371	my $pkg = $1;
		1372	$pkg =~ s/[^[:word:]]/_/g;
		1373	$pkg = "ext::$pkg";
		1374
		1375	open my $fh, "<:utf8", $path
		1376	or die "$path: $!";
		1377
		1378	my $source = do { local $/; <$fh> };
		1379
		1380	my %ext = (
		1381	path => $path,
		1382	base => $base,
		1383	pkg => $pkg,
		1384	);
		1385
		1386	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1387	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1388
		1389	$ext{source} =
		1390	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1391	. "#line 1 \"$path\"\n{\n"
		1392	. $source
		1393	. "\n};\n1";
		1394
		1395	$todo{$base} = \%ext;
		1396	}
		1397
		1398	my %done;
		1399	while (%todo) {
		1400	my $progress;
		1401
		1402	while (my ($k, $v) = each %todo) {
		1403	for (split /,\s*/, $v->{meta}{depends}) {
		1404	goto skip
		1405	unless exists $done{$_};
		1406	}
		1407
		1408	warn "... loading '$k' into '$v->{pkg}'\n";
		1409
		1410	unless (eval $v->{source}) {
		1411	my $msg = $@ ? "$v->{path}: $@\n"
		1412	: "$v->{base}: extension inactive.\n";
		1413
		1414	if (exists $v->{meta}{mandatory}) {
		1415	warn $msg;
		1416	cf::cleanup "mandatory extension failed to load, exiting.";
		1417	}
		1418
		1419	warn $msg;
		1420	}
		1421
		1422	$done{$k} = delete $todo{$k};
		1423	push @EXTS, $v->{pkg};
		1424	$progress = 1;
932	1	1425	}
933	} or warn "$ext not loaded: $@";	1426
		1427	skip:
		1428	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1429	unless $progress;
		1430	}
934	}	1431	};
935	}	1432	}
936		1433
937	#############################################################################	1434	#############################################################################
938		1435
		1436	=back
		1437
939	=head2 CORE EXTENSIONS	1438	=head2 CORE EXTENSIONS
940		1439
941	Functions and methods that extend core crossfire objects.	1440	Functions and methods that extend core deliantra objects.
942		1441
943	=cut	1442	=cut
944		1443
945	package cf::player;	1444	package cf::player;
946		1445
…		…
948		1447
949	=head3 cf::player	1448	=head3 cf::player
950		1449
951	=over 4	1450	=over 4
952		1451
		1452	=item cf::player::num_playing
		1453
		1454	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1455
		1456	=cut
		1457
		1458	sub num_playing {
		1459	scalar grep
		1460	$_->ob->map
		1461	&& !$_->hidden
		1462	&& !$_->ob->flag (cf::FLAG_WIZ),
		1463	cf::player::list
		1464	}
		1465
953	=item cf::player::find $login	1466	=item cf::player::find $login
954		1467
955	Returns the given player object, loading it if necessary (might block).	1468	Returns the given player object, loading it if necessary (might block).
956		1469
957	=cut	1470	=cut
958		1471
959	sub playerdir($) {	1472	sub playerdir($) {
960	cf::localdir	1473	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1474	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1475	}
966		1476
967	sub path($) {	1477	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1478	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1488
979	sub exists($) {	1489	sub exists($) {
980	my ($login) = @_;	1490	my ($login) = @_;
981		1491
982	$cf::PLAYER{$login}	1492	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1493	or !aio_stat path $login
984	}	1494	}
985		1495
986	sub find($) {	1496	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1497	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1498	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1505	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1506	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1507	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1508	aio_unlink +(playerdir $login) . "/$login.pl";
999		1509
1000	my $pl = load_pl path $login	1510	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1511	or return;
		1512
		1513	my $pl = cf::player::load_pl $f
		1514	or return;
		1515
		1516	local $cf::PLAYER_LOADING{$login} = $pl;
		1517	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1518	$cf::PLAYER{$login} = $pl
1003	}	1519	}
1004	}	1520	}
1005	}	1521	}
1006		1522
…		…
1015	return if $pl->{deny_save};	1531	return if $pl->{deny_save};
1016		1532
1017	aio_mkdir playerdir $pl, 0770;	1533	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1534	$pl->{last_save} = $cf::RUNTIME;
1019		1535
		1536	cf::get_slot 0.01;
		1537
1020	$pl->save_pl ($path);	1538	$pl->save_pl ($path);
1021	Coro::cede;	1539	cf::cede_to_tick;
1022	}	1540	}
1023		1541
1024	sub new($) {	1542	sub new($) {
1025	my ($login) = @_;	1543	my ($login) = @_;
1026		1544
…		…
1032	$cf::PLAYER{$login} = $self;	1550	$cf::PLAYER{$login} = $self;
1033		1551
1034	$self	1552	$self
1035	}	1553	}
1036		1554
		1555	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1556
		1557	=cut
		1558
		1559	sub send_msg {
		1560	my $ns = shift->ns
		1561	or return;
		1562	$ns->send_msg (@_);
		1563	}
		1564
1037	=item $pl->quit_character	1565	=item $pl->quit_character
1038		1566
1039	Nukes the player without looking back. If logged in, the connection will	1567	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1568	be destroyed. May block for a long time.
1041		1569
…		…
1045	my ($pl) = @_;	1573	my ($pl) = @_;
1046		1574
1047	my $name = $pl->ob->name;	1575	my $name = $pl->ob->name;
1048		1576
1049	$pl->{deny_save} = 1;	1577	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1578	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1579
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1580	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1581	$pl->deactivate;
		1582	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1583	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1584	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1585	$pl->ns->destroy if $pl->ns;
1056		1586
1057	my $path = playerdir $pl;	1587	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1588	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1618	while and may block, so not sync_job-capable, ever.
1089		1619
1090	=cut	1620	=cut
1091		1621
1092	sub list_logins {	1622	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1623	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1624	or return [];
1095		1625
1096	my @logins;	1626	my @logins;
1097		1627
1098	for my $login (@$dirs) {	1628	for my $login (@$dirs) {
		1629	my $path = path $login;
		1630
		1631	# a .pst is a dead give-away for a valid player
		1632	# if no pst file found, open and chekc for blocked users
		1633	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1634	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1635	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1636	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1637	}
1102		1638
1103	utf8::decode $login;	1639	utf8::decode $login;
1104	push @logins, $login;	1640	push @logins, $login;
1105	}	1641	}
1106		1642
…		…
1133	}	1669	}
1134		1670
1135	\@paths	1671	\@paths
1136	}	1672	}
1137		1673
		1674	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1675
		1676	Expand deliantra pod fragments into protocol xml.
		1677
1138	=item $player->ext_reply ($msgid, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1139		1679
1140	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1141		1681
1142	=cut	1682	=cut
1143		1683
1144	sub ext_reply($$%) {	1684	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1146		1686
1147	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1688	}
1151		1689
1152	=item $player->ext_event ($type, %msg)	1690	=item $player->ext_msg ($type, @msg)
1153		1691
1154	Sends an ext event to the client.	1692	Sends an ext event to the client.
1155		1693
1156	=cut	1694	=cut
1157		1695
1158	sub ext_event($$%) {	1696	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1697	my ($self, $type, @msg) = @_;
1160		1698
1161	$self->ns->ext_event ($type, %msg);	1699	$self->ns->ext_msg ($type, @msg);
1162	}	1700	}
1163		1701
1164	=head3 cf::region	1702	=head3 cf::region
1165		1703
1166	=over 4	1704	=over 4
…		…
1169		1707
1170	package cf::region;	1708	package cf::region;
1171		1709
1172	=item cf::region::find_by_path $path	1710	=item cf::region::find_by_path $path
1173		1711
1174	Tries to decuce the probable region for a map knowing only its path.	1712	Tries to decuce the likely region for a map knowing only its path.
1175		1713
1176	=cut	1714	=cut
1177		1715
1178	sub find_by_path($) {	1716	sub find_by_path($) {
1179	my ($path) = @_;	1717	my ($path) = @_;
1180		1718
1181	my ($match, $specificity);	1719	my ($match, $specificity);
1182		1720
1183	for my $region (list) {	1721	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1722	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1723	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1724	if $region->specificity > $specificity;
1187	}	1725	}
1188	}	1726	}
1189		1727
…		…
1210	our $MAX_RESET = 3600;	1748	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1749	our $DEFAULT_RESET = 3000;
1212		1750
1213	sub generate_random_map {	1751	sub generate_random_map {
1214	my ($self, $rmp) = @_;	1752	my ($self, $rmp) = @_;
		1753
		1754	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1755
1215	# mit "rum" bekleckern, nicht	1756	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1757	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1758	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1759	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1760	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1253	my ($self, $merge) = @_;	1794	my ($self, $merge) = @_;
1254		1795
1255	# we have to keep some variables in memory intact	1796	# we have to keep some variables in memory intact
1256	local $self->{path};	1797	local $self->{path};
1257	local $self->{load_path};	1798	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1799
1261	$self->SUPER::thawer_merge ($merge);	1800	$self->SUPER::thawer_merge ($merge);
1262	}	1801	}
1263		1802
1264	sub normalise {	1803	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1850	$self->init; # pass $1 etc.
1312	return $self;	1851	return $self;
1313	}	1852	}
1314	}	1853	}
1315		1854
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1855	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1856	()
1318	}	1857	}
1319		1858
1320	sub init {	1859	sub init {
1321	my ($self) = @_;	1860	my ($self) = @_;
…		…
1336		1875
1337	# the original (read-only) location	1876	# the original (read-only) location
1338	sub load_path {	1877	sub load_path {
1339	my ($self) = @_;	1878	my ($self) = @_;
1340		1879
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1880	"$MAPDIR/$self->{path}.map"
1342	}	1881	}
1343		1882
1344	# the temporary/swap location	1883	# the temporary/swap location
1345	sub save_path {	1884	sub save_path {
1346	my ($self) = @_;	1885	my ($self) = @_;
1347		1886
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1887	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1888	"$TMPDIR/$path.map"
1350	}	1889	}
1351		1890
1352	# the unique path, undef == no special unique path	1891	# the unique path, undef == no special unique path
1353	sub uniq_path {	1892	sub uniq_path {
1354	my ($self) = @_;	1893	my ($self) = @_;
1355		1894
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1895	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1896	"$UNIQUEDIR/$path"
1358	}	1897	}
1359		1898
1360	# and all this just because we cannot iterate over	1899	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	1900	my ($self) = @_;
1364		1901
1365	$_->change_map_light ($change)	1902	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	1903
		1904	$self->do_decay_objects;
1367	}	1905	}
1368		1906
1369	sub unlink_save {	1907	sub unlink_save {
1370	my ($self) = @_;	1908	my ($self) = @_;
1371		1909
…		…
1376		1914
1377	sub load_header_from($) {	1915	sub load_header_from($) {
1378	my ($self, $path) = @_;	1916	my ($self, $path) = @_;
1379		1917
1380	utf8::encode $path;	1918	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1919	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1920	or return;
		1921
		1922	$self->_load_header ($f)
		1923	or return;
		1924
		1925	local $MAP_LOADING{$self->{path}} = $self;
		1926	$f->resolve_delayed_derefs;
1386		1927
1387	$self->{load_path} = $path;	1928	$self->{load_path} = $path;
1388		1929
1389	1	1930	1
1390	}	1931	}
…		…
1429	$self->load_header_orig	1970	$self->load_header_orig
1430	or return;	1971	or return;
1431	$self->prepare_orig;	1972	$self->prepare_orig;
1432	}	1973	}
1433		1974
		1975	$self->{deny_reset} = 1
		1976	if $self->no_reset;
		1977
1434	$self->default_region (cf::region::find_by_path $self->{path})	1978	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1979	unless $self->default_region;
1436		1980
1437	1	1981	1
1438	}	1982	}
…		…
1441	sub find {	1985	sub find {
1442	my ($path, $origin) = @_;	1986	my ($path, $origin) = @_;
1443		1987
1444	$path = normalise $path, $origin && $origin->path;	1988	$path = normalise $path, $origin && $origin->path;
1445		1989
		1990	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1991	my $guard2 = cf::lock_acquire "map_find:$path";
1447		1992
1448	$cf::MAP{$path} || do {	1993	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	1994	my $map = new_from_path cf::map $path
1451	or return;	1995	or return;
1452		1996
1453	$map->{last_save} = $cf::RUNTIME;	1997	$map->{last_save} = $cf::RUNTIME;
1454		1998
1455	$map->load_header	1999	$map->load_header
1456	or return;	2000	or return;
1457		2001
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2002	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	2003	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	2004	#$cf::WAIT_FOR_TICK->wait;
		2005	undef $guard2;
		2006	undef $guard1;
1461	$map->reset;	2007	$map->reset;
1462	undef $guard;
1463	return find $path;	2008	return find $path;
1464	}	2009	}
1465		2010
1466	$cf::MAP{$path} = $map	2011	$cf::MAP{$path} = $map
1467	}	2012	}
…		…
1474	my ($self) = @_;	2019	my ($self) = @_;
1475		2020
1476	local $self->{deny_reset} = 1; # loading can take a long time	2021	local $self->{deny_reset} = 1; # loading can take a long time
1477		2022
1478	my $path = $self->{path};	2023	my $path = $self->{path};
		2024
		2025	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2026	my $guard = cf::lock_acquire "map_data:$path";
1480		2027
		2028	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2029	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2030
1483	$self->in_memory (cf::MAP_LOADING);	2031	$self->in_memory (cf::MAP_LOADING);
1484		2032
1485	$self->alloc;	2033	$self->alloc;
1486		2034
1487	$self->pre_load;	2035	$self->pre_load;
1488	Coro::cede;	2036	cf::cede_to_tick;
1489		2037
1490	$self->_load_objects ($self->{load_path}, 1)	2038	my $f = new_from_file cf::object::thawer $self->{load_path};
		2039	$f->skip_block;
		2040	$self->_load_objects ($f)
1491	or return;	2041	or return;
1492		2042
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2043	$self->post_load_original
1494	if delete $self->{load_original};	2044	if delete $self->{load_original};
1495		2045
1496	if (my $uniq = $self->uniq_path) {	2046	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2047	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2048	unless (aio_stat $uniq) {
		2049	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2050	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2051	$self->_load_objects ($f);
		2052	$f->resolve_delayed_derefs;
		2053	}
1501	}	2054	}
1502	}	2055	}
1503		2056
1504	Coro::cede;	2057	$f->resolve_delayed_derefs;
		2058
		2059	cf::cede_to_tick;
1505	# now do the right thing for maps	2060	# now do the right thing for maps
1506	$self->link_multipart_objects;	2061	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($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)	2062	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2063	unless $self->difficulty;
1517	Coro::cede;	2064	cf::cede_to_tick;
		2065
		2066	unless ($self->{deny_activate}) {
		2067	$self->decay_objects;
		2068	$self->fix_auto_apply;
		2069	$self->update_buttons;
		2070	cf::cede_to_tick;
1518	$self->activate;	2071	$self->activate;
1519	Coro::cede;	2072	}
		2073
		2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
		2076
		2077	$self->in_memory (cf::MAP_ACTIVE);
1520	}	2078	}
1521		2079
1522	$self->post_load;	2080	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	2081	}
1527		2082
1528	sub customise_for {	2083	sub customise_for {
1529	my ($self, $ob) = @_;	2084	my ($self, $ob) = @_;
1530		2085
1531	return find "~" . $ob->name . "/" . $self->{path}	2086	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2087	if $self->per_player;
1533		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
1534	$self	2092	$self
1535	}	2093	}
1536		2094
1537	# find and load all maps in the 3x3 area around a map	2095	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	2096	sub load_neighbours {
1539	my ($map) = @_;	2097	my ($map) = @_;
1540		2098
1541	my @diag; # diagonal neighbours	2099	my @neigh; # diagonal neighbours
1542		2100
1543	for (0 .. 3) {	2101	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	2102	my $neigh = $map->tile_path ($_)
1545	or next;	2103	or next;
1546	$neigh = find $neigh, $map	2104	$neigh = find $neigh, $map
1547	or next;	2105	or next;
1548	$neigh->load;	2106	$neigh->load;
1549		2107
		2108	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2111	}
1553		2112
1554	for (@diag) {	2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2115	my $neigh = find $path, $origin
1556	or next;	2116	or next;
1557	$neigh->load;	2117	$neigh->load;
1558	}	2118	}
1559	}	2119	}
1560		2120
…		…
1565	}	2125	}
1566		2126
1567	sub do_load_sync {	2127	sub do_load_sync {
1568	my ($map) = @_;	2128	my ($map) = @_;
1569		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1570	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
1571	}	2134	}
1572		2135
1573	our %MAP_PREFETCH;	2136	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2137	our $MAP_PREFETCHER = undef;
1575		2138
1576	sub find_async {	2139	sub find_async {
1577	my ($path, $origin) = @_;	2140	my ($path, $origin, $load) = @_;
1578		2141
1579	$path = normalise $path, $origin && $origin->{path};	2142	$path = normalise $path, $origin && $origin->{path};
1580		2143
1581	if (my $map = $cf::MAP{$path}) {	2144	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2145	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1583	}	2146	}
1584		2147
1585	undef $MAP_PREFETCH{$path};	2148	$MAP_PREFETCH{$path} |= $load;
		2149
1586	$MAP_PREFETCHER ||= cf::async {	2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
1587	while (%MAP_PREFETCH) {	2153	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2154	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2155	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2156	$map->load if $v;
		2157	}
1592		2158
1593	delete $MAP_PREFETCH{$path};	2159	delete $MAP_PREFETCH{$k};
1594	}	2160	}
1595	}	2161	}
1596	undef $MAP_PREFETCHER;	2162	undef $MAP_PREFETCHER;
1597	};	2163	};
1598	$MAP_PREFETCHER->prio (6);	2164	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2167	}
1602		2168
1603	sub save {	2169	sub save {
1604	my ($self) = @_;	2170	my ($self) = @_;
1605		2171
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2173
1608	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1609		2175
1610	return unless $self->dirty;	2176	return unless $self->dirty;
1611		2177
…		…
1617	return if $self->{deny_save};	2183	return if $self->{deny_save};
1618		2184
1619	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1620		2186
1621	cf::async {	2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2189	$_->contr->save for $self->players;
1623	};	2190	};
		2191
		2192	cf::get_slot 0.02;
1624		2193
1625	if ($uniq) {	2194	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2196	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2197	} else {
…		…
1634	my ($self) = @_;	2203	my ($self) = @_;
1635		2204
1636	# save first because save cedes	2205	# save first because save cedes
1637	$self->save;	2206	$self->save;
1638		2207
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2208	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2209
1641	return if $self->players;	2210	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2211	return if $self->in_memory != cf::MAP_ACTIVE;
1643	return if $self->{deny_save};	2212	return if $self->{deny_save};
1644		2213
		2214	$self->in_memory (cf::MAP_SWAPPED);
		2215
		2216	$self->deactivate;
		2217	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2218	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2219	}
1648		2220
1649	sub reset_at {	2221	sub reset_at {
1650	my ($self) = @_;	2222	my ($self) = @_;
1651		2223
1652	# TODO: safety, remove and allow resettable per-player maps	2224	# 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};	2225	return 1e99 if $self->{deny_reset};
1655		2226
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2227	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2228	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2229
…		…
1669	my ($self) = @_;	2240	my ($self) = @_;
1670		2241
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2243
1673	return if $self->players;	2244	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2245
1676	warn "resetting map ", $self->path;#d#	2246	warn "resetting map ", $self->path, "\n";
1677		2247
1678	$self->in_memory (cf::MAP_SWAPPED);	2248	$self->in_memory (cf::MAP_SWAPPED);
1679		2249
1680	# need to save uniques path	2250	# need to save uniques path
1681	unless ($self->{deny_save}) {	2251	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2255	if $uniq;
1686	}	2256	}
1687		2257
1688	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1689		2259
		2260	$self->deactivate;
		2261	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2262	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2263
1694	$self->unlink_save;	2264	$self->unlink_save;
1695	$self->destroy;	2265	$self->destroy;
1696	}	2266	}
1697		2267
1698	my $nuke_counter = "aaaa";	2268	my $nuke_counter = "aaaa";
1699		2269
1700	sub nuke {	2270	sub nuke {
1701	my ($self) = @_;	2271	my ($self) = @_;
1702		2272
		2273	{
		2274	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2275
1703	delete $cf::MAP{$self->path};	2276	delete $cf::MAP{$self->path};
1704		2277
1705	$self->unlink_save;	2278	$self->unlink_save;
1706		2279
1707	bless $self, "cf::map";	2280	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2281	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2282	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2283	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2284	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2285
1713	$cf::MAP{$self->path} = $self;	2286	$cf::MAP{$self->path} = $self;
		2287	}
1714		2288
1715	$self->reset; # polite request, might not happen	2289	$self->reset; # polite request, might not happen
		2290	}
		2291
		2292	=item $maps = cf::map::tmp_maps
		2293
		2294	Returns an arrayref with all map paths of currently instantiated and saved
		2295	maps. May block.
		2296
		2297	=cut
		2298
		2299	sub tmp_maps() {
		2300	[
		2301	map {
		2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise $_
		2305	: ()
		2306	} @{ aio_readdir $TMPDIR or [] }
		2307	]
		2308	}
		2309
		2310	=item $maps = cf::map::random_maps
		2311
		2312	Returns an arrayref with all map paths of currently instantiated and saved
		2313	random maps. May block.
		2314
		2315	=cut
		2316
		2317	sub random_maps() {
		2318	[
		2319	map {
		2320	utf8::decode $_;
		2321	/\.map$/
		2322	? normalise "?random/$_"
		2323	: ()
		2324	} @{ aio_readdir $RANDOMDIR or [] }
		2325	]
1716	}	2326	}
1717		2327
1718	=item cf::map::unique_maps	2328	=item cf::map::unique_maps
1719		2329
1720	Returns an arrayref of paths of all shared maps that have	2330	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2331	instantiated unique items. May block.
1722		2332
1723	=cut	2333	=cut
1724		2334
1725	sub unique_maps() {	2335	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2336	[
1727	or return;	2337	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2338	utf8::decode $_;
1733	next if /\.pst$/;	2339	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2340	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2341	? ()
1736	push @paths, cf::map::normalise $_;	2342	: normalise $_
		2343	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2344	]
1738
1739	\@paths
1740	}	2345	}
1741		2346
1742	package cf;	2347	=item cf::map::static_maps
		2348
		2349	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2350	file in the shared directory excluding F</styles> and F</editor>). May
		2351	block.
		2352
		2353	=cut
		2354
		2355	sub static_maps() {
		2356	my @dirs = "";
		2357	my @maps;
		2358
		2359	while (@dirs) {
		2360	my $dir = shift @dirs;
		2361
		2362	next if $dir eq "/styles" || $dir eq "/editor";
		2363
		2364	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2365	or return;
		2366
		2367	for (@$files) {
		2368	s/\.map$// or next;
		2369	utf8::decode $_;
		2370	push @maps, "$dir/$_";
		2371	}
		2372
		2373	push @dirs, map "$dir/$_", @$dirs;
		2374	}
		2375
		2376	\@maps
		2377	}
1743		2378
1744	=back	2379	=back
1745		2380
1746	=head3 cf::object	2381	=head3 cf::object
1747		2382
…		…
1751		2386
1752	=over 4	2387	=over 4
1753		2388
1754	=item $ob->inv_recursive	2389	=item $ob->inv_recursive
1755		2390
1756	Returns the inventory of the object _and_ their inventories, recursively.	2391	Returns the inventory of the object I<and> their inventories, recursively,
		2392	but I<not> the object itself.
1757		2393
1758	=cut	2394	=cut
1759		2395
1760	sub inv_recursive_;	2396	sub inv_recursive_;
1761	sub inv_recursive_ {	2397	sub inv_recursive_ {
…		…
1764		2400
1765	sub inv_recursive {	2401	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2402	inv_recursive_ inv $_[0]
1767	}	2403	}
1768		2404
		2405	=item $ref = $ob->ref
		2406
		2407	Creates and returns a persistent reference to an object that can be stored as a string.
		2408
		2409	=item $ob = cf::object::deref ($refstring)
		2410
		2411	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2412	even if the object actually exists. May block.
		2413
		2414	=cut
		2415
		2416	sub deref {
		2417	my ($ref) = @_;
		2418
		2419	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2420	my ($uuid, $name) = ($1, $2);
		2421	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2422	or return;
		2423	$pl->ob->uuid eq $uuid
		2424	or return;
		2425
		2426	$pl->ob
		2427	} else {
		2428	warn "$ref: cannot resolve object reference\n";
		2429	undef
		2430	}
		2431	}
		2432
1769	package cf;	2433	package cf;
1770		2434
1771	=back	2435	=back
1772		2436
1773	=head3 cf::object::player	2437	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2443	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	2444	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2445	dialogue with the given NPC character.
1782		2446
1783	=cut	2447	=cut
		2448
		2449	our $SAY_CHANNEL = {
		2450	id => "say",
		2451	title => "Map",
		2452	reply => "say ",
		2453	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2454	};
		2455
		2456	our $CHAT_CHANNEL = {
		2457	id => "chat",
		2458	title => "Chat",
		2459	reply => "chat ",
		2460	tooltip => "Player chat and shouts, global to the server.",
		2461	};
1784		2462
1785	# rough implementation of a future "reply" method that works	2463	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2464	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2465	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2466	sub cf::object::player::reply($$$;$) {
…		…
1790		2468
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2469	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2470
1793	if ($self->{record_replies}) {	2471	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2472	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2473
1795	} else {	2474	} else {
		2475	my $pl = $self->contr;
		2476
		2477	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2478	my $dialog = $pl->{npc_dialog};
		2479	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2480
		2481	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2482	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2483	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2484	}
1798	}	2485	}
		2486	}
		2487
		2488	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2489
		2490	=cut
		2491
		2492	sub cf::object::send_msg {
		2493	my $pl = shift->contr
		2494	or return;
		2495	$pl->send_msg (@_);
1799	}	2496	}
1800		2497
1801	=item $player_object->may ("access")	2498	=item $player_object->may ("access")
1802		2499
1803	Returns wether the given player is authorized to access resource "access"	2500	Returns wether the given player is authorized to access resource "access"
…		…
1816		2513
1817	=item $player_object->enter_link	2514	=item $player_object->enter_link
1818		2515
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2516	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2517
1821	The player should be reasonably safe there for short amounts of time. You	2518	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.	2519	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2520	though, as the palyer cannot control the character while it is on the link
		2521	map.
1823		2522
1824	Will never block.	2523	Will never block.
1825		2524
1826	=item $player_object->leave_link ($map, $x, $y)	2525	=item $player_object->leave_link ($map, $x, $y)
1827		2526
…		…
1850	$self->deactivate_recursive;	2549	$self->deactivate_recursive;
1851		2550
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2551	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2552
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2553	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2554	if $self->map && $self->map->{path} ne "{link}";
1856		2555
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2556	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2557	}
1859		2558
1860	sub cf::object::player::leave_link {	2559	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2560	my ($self, $map, $x, $y) = @_;
		2561
		2562	return unless $self->contr->active;
1862		2563
1863	my $link_pos = delete $self->{_link_pos};	2564	my $link_pos = delete $self->{_link_pos};
1864		2565
1865	unless ($map) {	2566	unless ($map) {
1866	# restore original map position	2567	# restore original map position
…		…
1877	($x, $y) = (-1, -1)	2578	($x, $y) = (-1, -1)
1878	unless (defined $x) && (defined $y);	2579	unless (defined $x) && (defined $y);
1879		2580
1880	# use -1 or undef as default coordinates, not 0, 0	2581	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2582	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2583	if $x <= 0 && $y <= 0;
1883		2584
1884	$map->load;	2585	$map->load;
1885	$map->load_diag;	2586	$map->load_neighbours;
1886		2587
1887	return unless $self->contr->active;	2588	return unless $self->contr->active;
1888	$self->activate_recursive;
1889		2589
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2590	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2591	$self->enter_map ($map, $x, $y);
1892	}
1893		2592
1894	cf::player->attach (	2593	# only activate afterwards, to support waiting in hooks
1895	on_logout => sub {	2594	$self->activate_recursive;
1896	my ($pl) = @_;	2595	}
1897		2596
1898	# abort map switching before logout	2597	=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		2598
1908	# try to abort aborted map switching on player login :)	2599	Moves the player to the given map-path and coordinates by first freezing
1909	# should happen only on crashes	2600	her, loading and preparing them map, calling the provided $check callback
1910	if ($pl->ob->{_link_pos}) {	2601	that has to return the map if sucecssful, and then unfreezes the player on
1911	$pl->ob->enter_link;	2602	the new (success) or old (failed) map position. In either case, $done will
1912	(async {	2603	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		2604
1926	=item $player_object->goto ($path, $x, $y)	2605	Note that $check will be called with a potentially non-loaded map, so if
		2606	it needs a loaded map it has to call C<< ->load >>.
1927		2607
1928	=cut	2608	=cut
		2609
		2610	our $GOTOGEN;
1929		2611
1930	sub cf::object::player::goto {	2612	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2613	my ($self, $path, $x, $y, $check, $done) = @_;
		2614
		2615	# do generation counting so two concurrent goto's will be executed in-order
		2616	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2617
1933	$self->enter_link;	2618	$self->enter_link;
1934		2619
1935	(async {	2620	(async {
		2621	$Coro::current->{desc} = "player::goto $path $x $y";
		2622
		2623	# *tag paths override both path and x|y
		2624	if ($path =~ /^\*(.*)$/) {
		2625	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2626	my $ob = $obs[rand @obs];
		2627
		2628	# see if we actually can go there
		2629	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2630	$ob = $obs[rand @obs];
		2631	} else {
		2632	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2633	}
		2634	# else put us there anyways for now #d#
		2635
		2636	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2637	} else {
		2638	($path, $x, $y) = (undef, undef, undef);
		2639	}
		2640	}
		2641
1936	my $map = eval {	2642	my $map = eval {
1937	my $map = cf::map::find $path;	2643	my $map = defined $path ? cf::map::find $path : undef;
		2644
		2645	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2646	$map = $map->customise_for ($self);
		2647	$map = $check->($map) if $check && $map;
		2648	} else {
		2649	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2650	}
		2651
1939	$map	2652	$map
		2653	};
		2654
		2655	if ($@) {
		2656	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2657	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2658	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2659
		2660	if ($gen == $self->{_goto_generation}) {
		2661	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2662	$self->leave_link ($map, $x, $y);
		2663	}
		2664
		2665	$done->() if $done;
1944	})->prio (1);	2666	})->prio (1);
1945	}	2667	}
1946		2668
1947	=item $player_object->enter_exit ($exit_object)	2669	=item $player_object->enter_exit ($exit_object)
1948		2670
…		…
1968	}	2690	}
1969		2691
1970	sub prepare_random_map {	2692	sub prepare_random_map {
1971	my ($exit) = @_;	2693	my ($exit) = @_;
1972		2694
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2695	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2696	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2697	# that depends on the exit object
1978		2698
1979	my $rmp = parse_random_map_params $exit->msg;	2699	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2701	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2702	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2703	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2704	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2705	$rmp->{origin_y} = $exit->y;
		2706
		2707	$exit->map->touch;
1986	}	2708	}
1987		2709
1988	$rmp->{random_seed} ||= $exit->random_seed;	2710	$rmp->{random_seed} ||= $exit->random_seed;
1989		2711
1990	my $data = cf::to_json $rmp;	2712	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2713	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2714	my $meta = "$RANDOMDIR/$md5.meta";
1993		2715
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2716	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2717	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2718	undef $fh;
1997	aio_rename "$meta~", $meta;	2719	aio_rename "$meta~", $meta;
1998		2720
		2721	my $slaying = "?random/$md5";
		2722
		2723	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2724	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2725	$exit->msg (undef);
		2726	}
2001	}	2727	}
2002	}	2728	}
2003		2729
2004	sub cf::object::player::enter_exit {	2730	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2731	my ($self, $exit) = @_;
2006		2732
2007	return unless $self->type == cf::PLAYER;	2733	return unless $self->type == cf::PLAYER;
2008		2734
2009	if ($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;	2735	$self->enter_link;
2021		2736
2022	(async {	2737	(async {
2023	$self->deactivate_recursive; # just to be sure	2738	$Coro::current->{desc} = "enter_exit";
		2739
2024	unless (eval {	2740	unless (eval {
		2741	$self->deactivate_recursive; # just to be sure
		2742
		2743	# random map handling
		2744	{
		2745	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2746
		2747	prepare_random_map $exit
		2748	if $exit->slaying eq "/!";
		2749	}
		2750
		2751	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2752	my $x = $exit->stats->hp;
		2753	my $y = $exit->stats->sp;
		2754
2025	$self->goto ($slaying, $hp, $sp);	2755	$self->goto ($map, $x, $y);
2026		2756
		2757	# if exit is damned, update players death & WoR home-position
		2758	$self->contr->savebed ($map, $x, $y)
		2759	if $exit->flag (cf::FLAG_DAMNED);
		2760
2027	1;	2761	1
2028	}) {	2762	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	2763	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	2764	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	2765	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	2766	cf::NDI_UNIQUE | cf::NDI_RED);
2033		2767
2034	warn "ERROR in enter_exit: $@";	2768	warn "ERROR in enter_exit: $@";
…		…
2053		2787
2054	utf8::encode $text;	2788	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2789	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2790	}
2057		2791
		2792	=item $client->send_big_packet ($pkt)
		2793
		2794	Like C<send_packet>, but tries to compress large packets, and fragments
		2795	them as required.
		2796
		2797	=cut
		2798
		2799	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2800
		2801	sub cf::client::send_big_packet {
		2802	my ($self, $pkt) = @_;
		2803
		2804	# try lzf for large packets
		2805	$pkt = "lzf " . Compress::LZF::compress $pkt
		2806	if 1024 <= length $pkt and $self->{can_lzf};
		2807
		2808	# split very large packets
		2809	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2810	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2811	$pkt = "frag";
		2812	}
		2813
		2814	$self->send_packet ($pkt);
		2815	}
		2816
		2817	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2818
		2819	Send a drawinfo or msg packet to the client, formatting the msg for the
		2820	client if neccessary. C<$type> should be a string identifying the type of
		2821	the message, with C<log> being the default. If C<$color> is negative, suppress
		2822	the message unless the client supports the msg packet.
		2823
		2824	=cut
		2825
		2826	# non-persistent channels (usually the info channel)
		2827	our %CHANNEL = (
		2828	"c/motd" => {
		2829	id => "infobox",
		2830	title => "MOTD",
		2831	reply => undef,
		2832	tooltip => "The message of the day",
		2833	},
		2834	"c/identify" => {
		2835	id => "infobox",
		2836	title => "Identify",
		2837	reply => undef,
		2838	tooltip => "Items recently identified",
		2839	},
		2840	"c/examine" => {
		2841	id => "infobox",
		2842	title => "Examine",
		2843	reply => undef,
		2844	tooltip => "Signs and other items you examined",
		2845	},
		2846	"c/shopinfo" => {
		2847	id => "infobox",
		2848	title => "Shop Info",
		2849	reply => undef,
		2850	tooltip => "What your bargaining skill tells you about the shop",
		2851	},
		2852	"c/book" => {
		2853	id => "infobox",
		2854	title => "Book",
		2855	reply => undef,
		2856	tooltip => "The contents of a note or book",
		2857	},
		2858	"c/lookat" => {
		2859	id => "infobox",
		2860	title => "Look",
		2861	reply => undef,
		2862	tooltip => "What you saw there",
		2863	},
		2864	"c/who" => {
		2865	id => "infobox",
		2866	title => "Players",
		2867	reply => undef,
		2868	tooltip => "Shows players who are currently online",
		2869	},
		2870	"c/body" => {
		2871	id => "infobox",
		2872	title => "Body Parts",
		2873	reply => undef,
		2874	tooltip => "Shows which body parts you posess and are available",
		2875	},
		2876	"c/statistics" => {
		2877	id => "infobox",
		2878	title => "Statistics",
		2879	reply => undef,
		2880	tooltip => "Shows your primary statistics",
		2881	},
		2882	"c/skills" => {
		2883	id => "infobox",
		2884	title => "Skills",
		2885	reply => undef,
		2886	tooltip => "Shows your experience per skill and item power",
		2887	},
		2888	"c/shopitems" => {
		2889	id => "infobox",
		2890	title => "Shop Items",
		2891	reply => undef,
		2892	tooltip => "Shows the items currently for sale in this shop",
		2893	},
		2894	"c/resistances" => {
		2895	id => "infobox",
		2896	title => "Resistances",
		2897	reply => undef,
		2898	tooltip => "Shows your resistances",
		2899	},
		2900	"c/pets" => {
		2901	id => "infobox",
		2902	title => "Pets",
		2903	reply => undef,
		2904	tooltip => "Shows information abotu your pets/a specific pet",
		2905	},
		2906	"c/perceiveself" => {
		2907	id => "infobox",
		2908	title => "Perceive Self",
		2909	reply => undef,
		2910	tooltip => "You gained detailed knowledge about yourself",
		2911	},
		2912	"c/uptime" => {
		2913	id => "infobox",
		2914	title => "Uptime",
		2915	reply => undef,
		2916	tooltip => "How long the server has been running since last restart",
		2917	},
		2918	"c/mapinfo" => {
		2919	id => "infobox",
		2920	title => "Map Info",
		2921	reply => undef,
		2922	tooltip => "Information related to the maps",
		2923	},
		2924	"c/party" => {
		2925	id => "party",
		2926	title => "Party",
		2927	reply => "gsay ",
		2928	tooltip => "Messages and chat related to your party",
		2929	},
		2930	"c/death" => {
		2931	id => "death",
		2932	title => "Death",
		2933	reply => undef,
		2934	tooltip => "Reason for and more info about your most recent death",
		2935	},
		2936	"c/say" => $SAY_CHANNEL,
		2937	"c/chat" => $CHAT_CHANNEL,
		2938	);
		2939
		2940	sub cf::client::send_msg {
		2941	my ($self, $channel, $msg, $color, @extra) = @_;
		2942
		2943	$msg = $self->pl->expand_cfpod ($msg)
		2944	unless $color & cf::NDI_VERBATIM;
		2945
		2946	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2947
		2948	# check predefined channels, for the benefit of C
		2949	if ($CHANNEL{$channel}) {
		2950	$channel = $CHANNEL{$channel};
		2951
		2952	$self->ext_msg (channel_info => $channel);
		2953	$channel = $channel->{id};
		2954
		2955	} elsif (ref $channel) {
		2956	# send meta info to client, if not yet sent
		2957	unless (exists $self->{channel}{$channel->{id}}) {
		2958	$self->{channel}{$channel->{id}} = $channel;
		2959	$self->ext_msg (channel_info => $channel);
		2960	}
		2961
		2962	$channel = $channel->{id};
		2963	}
		2964
		2965	return unless @extra || length $msg;
		2966
		2967	# default colour, mask it out
		2968	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2969	if $color & cf::NDI_DEF;
		2970
		2971	my $pkt = "msg "
		2972	. $self->{json_coder}->encode (
		2973	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2974	);
		2975
		2976	$self->send_big_packet ($pkt);
		2977	}
		2978
2058	=item $client->ext_event ($type, %msg)	2979	=item $client->ext_msg ($type, @msg)
2059		2980
2060	Sends an exti event to the client.	2981	Sends an ext event to the client.
2061		2982
2062	=cut	2983	=cut
2063		2984
2064	sub cf::client::ext_event($$%) {	2985	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2986	my ($self, $type, @msg) = @_;
2066		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2990	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2991	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2992	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2993	}
		2994	}
		2995
		2996	=item $client->ext_reply ($msgid, @msg)
		2997
		2998	Sends an ext reply to the client.
		2999
		3000	=cut
		3001
		3002	sub cf::client::ext_reply($$@) {
		3003	my ($self, $id, @msg) = @_;
		3004
		3005	if ($self->extcmd == 2) {
		3006	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3007	} elsif ($self->extcmd == 1) {
		3008	#TODO: version 1, remove
		3009	unshift @msg, msgtype => "reply", msgid => $id;
		3010	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3011	}
2069	}	3012	}
2070		3013
2071	=item $success = $client->query ($flags, "text", \&cb)	3014	=item $success = $client->query ($flags, "text", \&cb)
2072		3015
2073	Queues a query to the client, calling the given callback with	3016	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>,	3017	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>.	3018	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		3019
2077	Queries can fail, so check the return code. Or don't, as queries will become	3020	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	3021	become reliable at some point in the future.
2079		3022
2080	=cut	3023	=cut
2081		3024
2082	sub cf::client::query {	3025	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	3026	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	3034	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3035	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		3036
2094	$self->send_packet ($self->{query_queue}[0][0])	3037	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	3038	if @{ $self->{query_queue} } == 1;
		3039
		3040	1
2096	}	3041	}
2097		3042
2098	cf::client->attach (	3043	cf::client->attach (
		3044	on_connect => sub {
		3045	my ($ns) = @_;
		3046
		3047	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3048	},
2099	on_reply => sub {	3049	on_reply => sub {
2100	my ($ns, $msg) = @_;	3050	my ($ns, $msg) = @_;
2101		3051
2102	# this weird shuffling is so that direct followup queries	3052	# this weird shuffling is so that direct followup queries
2103	# get handled first	3053	# get handled first
…		…
2115	} else {	3065	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3066	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	3067	}
2118	}	3068	}
2119	},	3069	},
		3070	on_exticmd => sub {
		3071	my ($ns, $buf) = @_;
		3072
		3073	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3074
		3075	if (ref $msg) {
		3076	my ($type, $reply, @payload) =
		3077	"ARRAY" eq ref $msg
		3078	? @$msg
		3079	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3080
		3081	my @reply;
		3082
		3083	if (my $cb = $EXTICMD{$type}) {
		3084	@reply = $cb->($ns, @payload);
		3085	}
		3086
		3087	$ns->ext_reply ($reply, @reply)
		3088	if $reply;
		3089
		3090	} else {
		3091	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3092	}
		3093
		3094	cf::override;
		3095	},
2120	);	3096	);
2121		3097
2122	=item $client->async (\&cb)	3098	=item $client->async (\&cb)
2123		3099
2124	Create a new coroutine, running the specified callback. The coroutine will	3100	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	3141	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3142	our $safe_hole = new Safe::Hole;
2167		3143
2168	$SIG{FPE} = 'IGNORE';	3144	$SIG{FPE} = 'IGNORE';
2169		3145
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3146	$safe->permit_only (Opcode::opset qw(
		3147	:base_core :base_mem :base_orig :base_math
		3148	grepstart grepwhile mapstart mapwhile
		3149	sort time
		3150	));
2171		3151
2172	# here we export the classes and methods available to script code	3152	# here we export the classes and methods available to script code
2173		3153
2174	=pod	3154	=pod
2175		3155
2176	The following functions and methods are available within a safe environment:	3156	The following functions and methods are available within a safe environment:
2177		3157
2178	cf::object contr pay_amount pay_player map	3158	cf::object
		3159	contr pay_amount pay_player map x y force_find force_add destroy
		3160	insert remove name archname title slaying race decrease split
		3161	value
		3162
2179	cf::object::player player	3163	cf::object::player
2180	cf::player peaceful	3164	player
2181	cf::map trigger	3165
		3166	cf::player
		3167	peaceful
		3168
		3169	cf::map
		3170	trigger
2182		3171
2183	=cut	3172	=cut
2184		3173
2185	for (	3174	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3175	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3176	insert remove inv nrof name archname title slaying race
		3177	decrease split destroy change_exp value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3178	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3179	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3180	["cf::map" => qw(trigger)],
2190	) {	3181	) {
2191	no strict 'refs';	3182	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3183	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3184	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2210	my ($code, %vars) = @_;	3201	my ($code, %vars) = @_;
2211		3202
2212	my $qcode = $code;	3203	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3204	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3205	$qcode =~ s/\n/\\n/g;
		3206
		3207	%vars = (_dummy => 0) unless %vars;
2215		3208
2216	local $_;	3209	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;	3210	local @safe::cf::_safe_eval_args = values %vars;
2218		3211
2219	my $eval =	3212	my $eval =
…		…
2262	=back	3255	=back
2263		3256
2264	=cut	3257	=cut
2265		3258
2266	#############################################################################	3259	#############################################################################
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	eval {
2420	local $SIG{__DIE__};
2421	local $SIG{__WARN__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	_exit 0;
2429	}
2430	}
2431
2432
2433
2434	#############################################################################
2435	# the server's init and main functions	3260	# the server's init and main functions
2436		3261
2437	sub load_facedata($) {	3262	sub load_facedata($) {
2438	my ($path) = @_;	3263	my ($path) = @_;
		3264
		3265	# HACK to clear player env face cache, we need some signal framework
		3266	# for this (global event?)
		3267	%ext::player_env::MUSIC_FACE_CACHE = ();
		3268
		3269	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2439		3270
2440	warn "loading facedata from $path\n";	3271	warn "loading facedata from $path\n";
2441		3272
2442	my $facedata;	3273	my $facedata;
2443	0 < aio_load $path, $facedata	3274	0 < aio_load $path, $facedata
…		…
2446	$facedata = Coro::Storable::thaw $facedata;	3277	$facedata = Coro::Storable::thaw $facedata;
2447		3278
2448	$facedata->{version} == 2	3279	$facedata->{version} == 2
2449	or cf::cleanup "$path: version mismatch, cannot proceed.";	3280	or cf::cleanup "$path: version mismatch, cannot proceed.";
2450		3281
		3282	# patch in the exptable
		3283	$facedata->{resource}{"res/exp_table"} = {
		3284	type => FT_RSRC,
		3285	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3286	};
		3287	cf::cede_to_tick;
		3288
2451	{	3289	{
2452	my $faces = $facedata->{faceinfo};	3290	my $faces = $facedata->{faceinfo};
2453		3291
2454	while (my ($face, $info) = each %$faces) {	3292	while (my ($face, $info) = each %$faces) {
2455	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3293	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3294
2456	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3295	cf::face::set_visibility $idx, $info->{visibility};
		3296	cf::face::set_magicmap $idx, $info->{magicmap};
2457	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3297	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2458	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3298	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2459	Coro::cede;	3299
		3300	cf::cede_to_tick;
2460	}	3301	}
2461		3302
2462	while (my ($face, $info) = each %$faces) {	3303	while (my ($face, $info) = each %$faces) {
2463	next unless $info->{smooth};	3304	next unless $info->{smooth};
		3305
2464	my $idx = cf::face::find $face	3306	my $idx = cf::face::find $face
2465	or next;	3307	or next;
		3308
2466	if (my $smooth = cf::face::find $info->{smooth}) {	3309	if (my $smooth = cf::face::find $info->{smooth}) {
		3310	cf::face::set_smooth $idx, $smooth;
2467	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3311	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2468	} else {	3312	} else {
2469	warn "smooth face '$info->{smooth}' not found for face '$face'";	3313	warn "smooth face '$info->{smooth}' not found for face '$face'";
2470	}	3314	}
2471	Coro::cede;	3315
		3316	cf::cede_to_tick;
2472	}	3317	}
2473	}	3318	}
2474		3319
2475	{	3320	{
2476	my $anims = $facedata->{animinfo};	3321	my $anims = $facedata->{animinfo};
2477		3322
2478	while (my ($anim, $info) = each %$anims) {	3323	while (my ($anim, $info) = each %$anims) {
2479	cf::anim::set $anim, $info->{frames}, $info->{facings};	3324	cf::anim::set $anim, $info->{frames}, $info->{facings};
2480	Coro::cede;	3325	cf::cede_to_tick;
2481	}	3326	}
2482		3327
2483	cf::anim::invalidate_all; # d'oh	3328	cf::anim::invalidate_all; # d'oh
2484	}	3329	}
2485		3330
		3331	{
		3332	# TODO: for gcfclient pleasure, we should give resources
		3333	# that gcfclient doesn't grok a >10000 face index.
		3334	my $res = $facedata->{resource};
		3335
		3336	while (my ($name, $info) = each %$res) {
		3337	if (defined $info->{type}) {
		3338	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3339	my $data;
		3340
		3341	if ($info->{type} & 1) {
		3342	# prepend meta info
		3343
		3344	my $meta = $enc->encode ({
		3345	name => $name,
		3346	%{ $info->{meta} || {} },
		3347	});
		3348
		3349	$data = pack "(w/a*)*", $meta, $info->{data};
		3350	} else {
		3351	$data = $info->{data};
		3352	}
		3353
		3354	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3355	cf::face::set_type $idx, $info->{type};
		3356	} else {
		3357	$RESOURCE{$name} = $info;
		3358	}
		3359
		3360	cf::cede_to_tick;
		3361	}
		3362	}
		3363
		3364	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3365
2486	1	3366	1
2487	}	3367	}
2488		3368
		3369	cf::global->attach (on_resource_update => sub {
		3370	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3371	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3372
		3373	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3374	my $sound = $soundconf->{compat}[$_]
		3375	or next;
		3376
		3377	my $face = cf::face::find "sound/$sound->[1]";
		3378	cf::sound::set $sound->[0] => $face;
		3379	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3380	}
		3381
		3382	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3383	my $face = cf::face::find "sound/$v";
		3384	cf::sound::set $k => $face;
		3385	}
		3386	}
		3387	});
		3388
		3389	register_exticmd fx_want => sub {
		3390	my ($ns, $want) = @_;
		3391
		3392	while (my ($k, $v) = each %$want) {
		3393	$ns->fx_want ($k, $v);
		3394	}
		3395	};
		3396
		3397	sub load_resource_file($) {
		3398	my $guard = lock_acquire "load_resource_file";
		3399
		3400	my $status = load_resource_file_ $_[0];
		3401	get_slot 0.1, 100;
		3402	cf::arch::commit_load;
		3403
		3404	$status
		3405	}
		3406
		3407	sub reload_regions {
		3408	# HACK to clear player env face cache, we need some signal framework
		3409	# for this (global event?)
		3410	%ext::player_env::MUSIC_FACE_CACHE = ();
		3411
		3412	load_resource_file "$MAPDIR/regions"
		3413	or die "unable to load regions file\n";
		3414
		3415	for (cf::region::list) {
		3416	$_->{match} = qr/$_->{match}/
		3417	if exists $_->{match};
		3418	}
		3419	}
		3420
2489	sub reload_facedata {	3421	sub reload_facedata {
2490	load_facedata sprintf "%s/facedata", cf::datadir	3422	load_facedata "$DATADIR/facedata"
2491	or die "unable to load facedata\n";	3423	or die "unable to load facedata\n";
2492	}	3424	}
2493		3425
2494	sub reload_regions {
2495	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2496	or die "unable to load regions file\n";
2497	}
2498
2499	sub reload_archetypes {	3426	sub reload_archetypes {
2500	load_resource_file sprintf "%s/archetypes", cf::datadir	3427	load_resource_file "$DATADIR/archetypes"
2501	or die "unable to load archetypes\n";	3428	or die "unable to load archetypes\n";
2502	}	3429	}
2503		3430
2504	sub reload_treasures {	3431	sub reload_treasures {
2505	load_resource_file sprintf "%s/treasures", cf::datadir	3432	load_resource_file "$DATADIR/treasures"
2506	or die "unable to load treasurelists\n";	3433	or die "unable to load treasurelists\n";
2507	}	3434	}
2508		3435
2509	sub reload_resources {	3436	sub reload_resources {
2510	warn "reloading resource files...\n";	3437	warn "reloading resource files...\n";
2511		3438
2512	reload_regions;
2513	reload_facedata;	3439	reload_facedata;
2514	reload_archetypes;	3440	reload_archetypes;
		3441	reload_regions;
2515	reload_treasures;	3442	reload_treasures;
2516		3443
2517	warn "finished reloading resource files\n";	3444	warn "finished reloading resource files\n";
2518	}	3445	}
2519		3446
2520	sub init {	3447	sub reload_config {
2521	reload_resources;	3448	warn "reloading config file...\n";
2522	}
2523		3449
2524	sub cfg_load {
2525	open my $fh, "<:utf8", cf::confdir . "/config"	3450	open my $fh, "<:utf8", "$CONFDIR/config"
2526	or return;	3451	or return;
2527		3452
2528	local $/;	3453	local $/;
2529	*CFG = YAML::Syck::Load <$fh>;	3454	*CFG = YAML::XS::Load scalar <$fh>;
2530		3455
2531	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3456	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2532		3457
2533	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3458	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2534	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3459	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2538	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3463	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2539	and die "WARNING: m(un)lockall failed: $!\n";	3464	and die "WARNING: m(un)lockall failed: $!\n";
2540	};	3465	};
2541	warn $@ if $@;	3466	warn $@ if $@;
2542	}	3467	}
		3468
		3469	warn "finished reloading resource files\n";
		3470	}
		3471
		3472	sub pidfile() {
		3473	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3474	or die "$PIDFILE: $!";
		3475	flock $fh, &Fcntl::LOCK_EX
		3476	or die "$PIDFILE: flock: $!";
		3477	$fh
		3478	}
		3479
		3480	# make sure only one server instance is running at any one time
		3481	sub atomic {
		3482	my $fh = pidfile;
		3483
		3484	my $pid = <$fh>;
		3485	kill 9, $pid if $pid > 0;
		3486
		3487	seek $fh, 0, 0;
		3488	print $fh $$;
		3489	}
		3490
		3491	sub main_loop {
		3492	warn "EV::loop starting\n";
		3493	if (1) {
		3494	EV::loop;
		3495	}
		3496	warn "EV::loop returned\n";
		3497	goto &main_loop unless $REALLY_UNLOOP;
2543	}	3498	}
2544		3499
2545	sub main {	3500	sub main {
		3501	cf::init_globals; # initialise logging
		3502
		3503	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3504	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3505	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3506	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3507
		3508	cf::init_experience;
		3509	cf::init_anim;
		3510	cf::init_attackmess;
		3511	cf::init_dynamic;
		3512
		3513	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3514
2546	# we must not ever block the main coroutine	3515	# we must not ever block the main coroutine
2547	local $Coro::idle = sub {	3516	local $Coro::idle = sub {
2548	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3517	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2549	(async {	3518	(async {
2550	Event::one_event;	3519	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3520	EV::loop EV::LOOP_ONESHOT;
2551	})->prio (Coro::PRIO_MAX);	3521	})->prio (Coro::PRIO_MAX);
2552	};	3522	};
2553		3523
2554	cfg_load;	3524	evthread_start IO::AIO::poll_fileno;
		3525
		3526	cf::sync_job {
		3527	reload_resources;
		3528	reload_config;
2555	db_init;	3529	db_init;
		3530
		3531	cf::load_settings;
		3532	cf::load_materials;
		3533	cf::init_uuid;
		3534	cf::init_signals;
		3535	cf::init_commands;
		3536	cf::init_skills;
		3537
		3538	cf::init_beforeplay;
		3539
		3540	atomic;
		3541
2556	load_extensions;	3542	load_extensions;
2557		3543
2558	$TICK_WATCHER->start;	3544	utime time, time, $RUNTIMEFILE;
2559	Event::loop;	3545
		3546	# no (long-running) fork's whatsoever before this point(!)
		3547	use POSIX ();
		3548	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3549
		3550	(pop @POST_INIT)->(0) while @POST_INIT;
		3551	};
		3552
		3553	main_loop;
2560	}	3554	}
2561		3555
2562	#############################################################################	3556	#############################################################################
2563	# initialisation and cleanup	3557	# initialisation and cleanup
2564		3558
2565	# install some emergency cleanup handlers	3559	# install some emergency cleanup handlers
2566	BEGIN {	3560	BEGIN {
		3561	our %SIGWATCHER = ();
2567	for my $signal (qw(INT HUP TERM)) {	3562	for my $signal (qw(INT HUP TERM)) {
2568	Event->signal (	3563	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2569	reentrant => 0,
2570	data => WF_AUTOCANCEL,
2571	signal => $signal,
2572	prio => 0,
2573	cb => sub {
2574	cf::cleanup "SIG$signal";	3564	cf::cleanup "SIG$signal";
2575	},
2576	);	3565	};
		3566	}
		3567	}
		3568
		3569	sub write_runtime_sync {
		3570	# first touch the runtime file to show we are still running:
		3571	# the fsync below can take a very very long time.
		3572
		3573	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3574
		3575	my $guard = cf::lock_acquire "write_runtime";
		3576
		3577	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3578	or return;
		3579
		3580	my $value = $cf::RUNTIME + 90 + 10;
		3581	# 10 is the runtime save interval, for a monotonic clock
		3582	# 60 allows for the watchdog to kill the server.
		3583
		3584	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3585	and return;
		3586
		3587	# always fsync - this file is important
		3588	aio_fsync $fh
		3589	and return;
		3590
		3591	# touch it again to show we are up-to-date
		3592	aio_utime $fh, undef, undef;
		3593
		3594	close $fh
		3595	or return;
		3596
		3597	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3598	and return;
		3599
		3600	warn "runtime file written.\n";
		3601
2577	}	3602	1
		3603	}
		3604
		3605	our $uuid_lock;
		3606	our $uuid_skip;
		3607
		3608	sub write_uuid_sync($) {
		3609	$uuid_skip ||= $_[0];
		3610
		3611	return if $uuid_lock;
		3612	local $uuid_lock = 1;
		3613
		3614	my $uuid = "$LOCALDIR/uuid";
		3615
		3616	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3617	or return;
		3618
		3619	my $value = uuid_seq uuid_cur;
		3620
		3621	unless ($value) {
		3622	warn "cowardly refusing to write zero uuid value!\n";
		3623	return;
		3624	}
		3625
		3626	my $value = uuid_str $value + $uuid_skip;
		3627	$uuid_skip = 0;
		3628
		3629	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3630	and return;
		3631
		3632	# always fsync - this file is important
		3633	aio_fsync $fh
		3634	and return;
		3635
		3636	close $fh
		3637	or return;
		3638
		3639	aio_rename "$uuid~", $uuid
		3640	and return;
		3641
		3642	warn "uuid file written ($value).\n";
		3643
		3644	1
		3645
		3646	}
		3647
		3648	sub write_uuid($$) {
		3649	my ($skip, $sync) = @_;
		3650
		3651	$sync ? write_uuid_sync $skip
		3652	: async { write_uuid_sync $skip };
2578	}	3653	}
2579		3654
2580	sub emergency_save() {	3655	sub emergency_save() {
2581	my $freeze_guard = cf::freeze_mainloop;	3656	my $freeze_guard = cf::freeze_mainloop;
2582		3657
2583	warn "enter emergency perl save\n";	3658	warn "emergency_perl_save: enter\n";
2584		3659
2585	cf::sync_job {	3660	cf::sync_job {
		3661	# this is a trade-off: we want to be very quick here, so
		3662	# save all maps without fsync, and later call a global sync
		3663	# (which in turn might be very very slow)
		3664	local $USE_FSYNC = 0;
		3665
2586	# use a peculiar iteration method to avoid tripping on perl	3666	# use a peculiar iteration method to avoid tripping on perl
2587	# refcount bugs in for. also avoids problems with players	3667	# refcount bugs in for. also avoids problems with players
2588	# and maps saved/destroyed asynchronously.	3668	# and maps saved/destroyed asynchronously.
2589	warn "begin emergency player save\n";	3669	warn "emergency_perl_save: begin player save\n";
2590	for my $login (keys %cf::PLAYER) {	3670	for my $login (keys %cf::PLAYER) {
2591	my $pl = $cf::PLAYER{$login} or next;	3671	my $pl = $cf::PLAYER{$login} or next;
2592	$pl->valid or next;	3672	$pl->valid or next;
		3673	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2593	$pl->save;	3674	$pl->save;
2594	}	3675	}
2595	warn "end emergency player save\n";	3676	warn "emergency_perl_save: end player save\n";
2596		3677
2597	warn "begin emergency map save\n";	3678	warn "emergency_perl_save: begin map save\n";
2598	for my $path (keys %cf::MAP) {	3679	for my $path (keys %cf::MAP) {
2599	my $map = $cf::MAP{$path} or next;	3680	my $map = $cf::MAP{$path} or next;
2600	$map->valid or next;	3681	$map->valid or next;
2601	$map->save;	3682	$map->save;
2602	}	3683	}
2603	warn "end emergency map save\n";	3684	warn "emergency_perl_save: end map save\n";
2604		3685
2605	warn "begin emergency database checkpoint\n";	3686	warn "emergency_perl_save: begin database checkpoint\n";
2606	BDB::db_env_txn_checkpoint $DB_ENV;	3687	BDB::db_env_txn_checkpoint $DB_ENV;
2607	warn "end emergency database checkpoint\n";	3688	warn "emergency_perl_save: end database checkpoint\n";
		3689
		3690	warn "emergency_perl_save: begin write uuid\n";
		3691	write_uuid_sync 1;
		3692	warn "emergency_perl_save: end write uuid\n";
2608	};	3693	};
2609		3694
		3695	warn "emergency_perl_save: starting sync()\n";
		3696	IO::AIO::aio_sync sub {
		3697	warn "emergency_perl_save: finished sync()\n";
		3698	};
		3699
2610	warn "leave emergency perl save\n";	3700	warn "emergency_perl_save: leave\n";
2611	}	3701	}
2612		3702
2613	sub post_cleanup {	3703	sub post_cleanup {
2614	my ($make_core) = @_;	3704	my ($make_core) = @_;
2615		3705
2616	warn Carp::longmess "post_cleanup backtrace"	3706	warn Carp::longmess "post_cleanup backtrace"
2617	if $make_core;	3707	if $make_core;
		3708
		3709	my $fh = pidfile;
		3710	unlink $PIDFILE if <$fh> == $$;
		3711	}
		3712
		3713	# a safer delete_package, copied from Symbol
		3714	sub clear_package($) {
		3715	my $pkg = shift;
		3716
		3717	# expand to full symbol table name if needed
		3718	unless ($pkg =~ /^main::.*::$/) {
		3719	$pkg = "main$pkg" if $pkg =~ /^::/;
		3720	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3721	$pkg .= '::' unless $pkg =~ /::$/;
		3722	}
		3723
		3724	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3725	my $stem_symtab = *{$stem}{HASH};
		3726
		3727	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3728	or return;
		3729
		3730	# clear all symbols
		3731	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3732	for my $name (keys %$leaf_symtab) {
		3733	_gv_clear *{"$pkg$name"};
		3734	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3735	}
		3736	warn "cleared package $pkg\n";#d#
2618	}	3737	}
2619		3738
2620	sub do_reload_perl() {	3739	sub do_reload_perl() {
2621	# can/must only be called in main	3740	# can/must only be called in main
2622	if ($Coro::current != $Coro::main) {	3741	if ($Coro::current != $Coro::main) {
2623	warn "can only reload from main coroutine";	3742	warn "can only reload from main coroutine";
2624	return;	3743	return;
2625	}	3744	}
2626		3745
		3746	return if $RELOAD++;
		3747
		3748	my $t1 = EV::time;
		3749
		3750	while ($RELOAD) {
2627	warn "reloading...";	3751	warn "reloading...";
2628		3752
2629	warn "entering sync_job";	3753	warn "entering sync_job";
2630		3754
2631	cf::sync_job {	3755	cf::sync_job {
2632	cf::write_runtime; # external watchdog should not bark	3756	cf::write_runtime_sync; # external watchdog should not bark
2633	cf::emergency_save;	3757	cf::emergency_save;
2634	cf::write_runtime; # external watchdog should not bark	3758	cf::write_runtime_sync; # external watchdog should not bark
2635		3759
2636	warn "syncing database to disk";	3760	warn "syncing database to disk";
2637	BDB::db_env_txn_checkpoint $DB_ENV;	3761	BDB::db_env_txn_checkpoint $DB_ENV;
2638		3762
2639	# if anything goes wrong in here, we should simply crash as we already saved	3763	# if anything goes wrong in here, we should simply crash as we already saved
2640		3764
2641	warn "cancelling all WF_AUTOCANCEL watchers";
2642	for (Event::all_watchers) {
2643	$_->cancel if $_->data & WF_AUTOCANCEL;
2644	}
2645
2646	warn "flushing outstanding aio requests";	3765	warn "flushing outstanding aio requests";
2647	for (;;) {
2648	BDB::flush;
2649	IO::AIO::flush;
2650	Coro::cede;
2651	last unless IO::AIO::nreqs || BDB::nreqs;	3766	while (IO::AIO::nreqs || BDB::nreqs) {
2652	warn "iterate...";	3767	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2653	}
2654
2655	++$RELOAD;
2656
2657	warn "cancelling all extension coros";
2658	$_->cancel for values %EXT_CORO;
2659	%EXT_CORO = ();
2660
2661	warn "removing commands";
2662	%COMMAND = ();
2663
2664	warn "removing ext commands";
2665	%EXTCMD = ();
2666
2667	warn "unloading/nuking all extensions";
2668	for my $pkg (@EXTS) {
2669	warn "... unloading $pkg";
2670
2671	if (my $cb = $pkg->can ("unload")) {
2672	eval {
2673	$cb->($pkg);
2674	1
2675	} or warn "$pkg unloaded, but with errors: $@";
2676	}	3768	}
2677		3769
2678	warn "... nuking $pkg";	3770	warn "cancelling all extension coros";
2679	Symbol::delete_package $pkg;	3771	$_->cancel for values %EXT_CORO;
2680	}	3772	%EXT_CORO = ();
2681		3773
2682	warn "unloading all perl modules loaded from $LIBDIR";	3774	warn "removing commands";
2683	while (my ($k, $v) = each %INC) {	3775	%COMMAND = ();
2684	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2685		3776
		3777	warn "removing ext/exti commands";
		3778	%EXTCMD = ();
		3779	%EXTICMD = ();
		3780
		3781	warn "unloading/nuking all extensions";
		3782	for my $pkg (@EXTS) {
2686	warn "... unloading $k";	3783	warn "... unloading $pkg";
2687	delete $INC{$k};
2688		3784
2689	$k =~ s/\.pm$//;
2690	$k =~ s/\//::/g;
2691
2692	if (my $cb = $k->can ("unload_module")) {	3785	if (my $cb = $pkg->can ("unload")) {
		3786	eval {
2693	$cb->();	3787	$cb->($pkg);
		3788	1
		3789	} or warn "$pkg unloaded, but with errors: $@";
		3790	}
		3791
		3792	warn "... clearing $pkg";
		3793	clear_package $pkg;
2694	}	3794	}
2695		3795
2696	Symbol::delete_package $k;	3796	warn "unloading all perl modules loaded from $LIBDIR";
		3797	while (my ($k, $v) = each %INC) {
		3798	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3799
		3800	warn "... unloading $k";
		3801	delete $INC{$k};
		3802
		3803	$k =~ s/\.pm$//;
		3804	$k =~ s/\//::/g;
		3805
		3806	if (my $cb = $k->can ("unload_module")) {
		3807	$cb->();
		3808	}
		3809
		3810	clear_package $k;
2697	}	3811	}
2698		3812
2699	warn "getting rid of safe::, as good as possible";	3813	warn "getting rid of safe::, as good as possible";
2700	Symbol::delete_package "safe::$_"	3814	clear_package "safe::$_"
2701	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3815	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2702		3816
2703	warn "unloading cf.pm \"a bit\"";	3817	warn "unloading cf.pm \"a bit\"";
2704	delete $INC{"cf.pm"};	3818	delete $INC{"cf.pm"};
		3819	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2705		3820
2706	# don't, removes xs symbols, too,	3821	# don't, removes xs symbols, too,
2707	# and global variables created in xs	3822	# and global variables created in xs
2708	#Symbol::delete_package __PACKAGE__;	3823	#clear_package __PACKAGE__;
2709		3824
2710	warn "unload completed, starting to reload now";	3825	warn "unload completed, starting to reload now";
2711		3826
2712	warn "reloading cf.pm";	3827	warn "reloading cf.pm";
2713	require cf;	3828	require cf;
2714	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3829	cf::_connect_to_perl_1;
2715		3830
2716	warn "loading config and database again";	3831	warn "loading config and database again";
2717	cf::cfg_load;	3832	cf::reload_config;
2718		3833
2719	warn "loading extensions";	3834	warn "loading extensions";
2720	cf::load_extensions;	3835	cf::load_extensions;
2721		3836
		3837	if ($REATTACH_ON_RELOAD) {
2722	warn "reattaching attachments to objects/players";	3838	warn "reattaching attachments to objects/players";
2723	_global_reattach; # objects, sockets	3839	_global_reattach; # objects, sockets
2724	warn "reattaching attachments to maps";	3840	warn "reattaching attachments to maps";
2725	reattach $_ for values %MAP;	3841	reattach $_ for values %MAP;
2726	warn "reattaching attachments to players";	3842	warn "reattaching attachments to players";
2727	reattach $_ for values %PLAYER;	3843	reattach $_ for values %PLAYER;
		3844	}
2728		3845
		3846	warn "running post_init jobs";
		3847	(pop @POST_INIT)->(1) while @POST_INIT;
		3848
2729	warn "leaving sync_job";	3849	warn "leaving sync_job";
2730		3850
2731	1	3851	1
2732	} or do {	3852	} or do {
2733	warn $@;	3853	warn $@;
2734	warn "error while reloading, exiting.";	3854	cf::cleanup "error while reloading, exiting.";
2735	exit 1;
2736	};	3855	};
2737		3856
2738	warn "reloaded";	3857	warn "reloaded";
		3858	--$RELOAD;
		3859	}
		3860
		3861	$t1 = EV::time - $t1;
		3862	warn "reload completed in ${t1}s\n";
2739	};	3863	};
2740		3864
2741	our $RELOAD_WATCHER; # used only during reload	3865	our $RELOAD_WATCHER; # used only during reload
2742		3866
2743	sub reload_perl() {	3867	sub reload_perl() {
2744	# doing reload synchronously and two reloads happen back-to-back,	3868	# doing reload synchronously and two reloads happen back-to-back,
2745	# coro crashes during coro_state_free->destroy here.	3869	# coro crashes during coro_state_free->destroy here.
2746		3870
2747	$RELOAD_WATCHER ||= Event->timer (	3871	$RELOAD_WATCHER ||= cf::async {
2748	reentrant => 0,	3872	Coro::AIO::aio_wait cache_extensions;
2749	after => 0,	3873
2750	data => WF_AUTOCANCEL,	3874	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2751	cb => sub {
2752	do_reload_perl;	3875	do_reload_perl;
2753	undef $RELOAD_WATCHER;	3876	undef $RELOAD_WATCHER;
2754	},	3877	};
2755	);	3878	};
2756	}	3879	}
2757		3880
2758	register_command "reload" => sub {	3881	register_command "reload" => sub {
2759	my ($who, $arg) = @_;	3882	my ($who, $arg) = @_;
2760		3883
2761	if ($who->flag (FLAG_WIZ)) {	3884	if ($who->flag (FLAG_WIZ)) {
2762	$who->message ("reloading server.");	3885	$who->message ("reloading server.");
		3886	async {
		3887	$Coro::current->{desc} = "perl_reload";
2763	async { reload_perl };	3888	reload_perl;
		3889	};
2764	}	3890	}
2765	};	3891	};
2766		3892
2767	unshift @INC, $LIBDIR;	3893	unshift @INC, $LIBDIR;
2768		3894
…		…
2770		3896
2771	our @WAIT_FOR_TICK;	3897	our @WAIT_FOR_TICK;
2772	our @WAIT_FOR_TICK_BEGIN;	3898	our @WAIT_FOR_TICK_BEGIN;
2773		3899
2774	sub wait_for_tick {	3900	sub wait_for_tick {
2775	return unless $TICK_WATCHER->is_active;
2776	return if $Coro::current == $Coro::main;	3901	return if tick_inhibit || $Coro::current == $Coro::main;
2777		3902
2778	my $signal = new Coro::Signal;	3903	my $signal = new Coro::Signal;
2779	push @WAIT_FOR_TICK, $signal;	3904	push @WAIT_FOR_TICK, $signal;
2780	$signal->wait;	3905	$signal->wait;
2781	}	3906	}
2782		3907
2783	sub wait_for_tick_begin {	3908	sub wait_for_tick_begin {
2784	return unless $TICK_WATCHER->is_active;
2785	return if $Coro::current == $Coro::main;	3909	return if tick_inhibit || $Coro::current == $Coro::main;
2786		3910
2787	my $signal = new Coro::Signal;	3911	my $signal = new Coro::Signal;
2788	push @WAIT_FOR_TICK_BEGIN, $signal;	3912	push @WAIT_FOR_TICK_BEGIN, $signal;
2789	$signal->wait;	3913	$signal->wait;
2790	}	3914	}
2791		3915
2792	$TICK_WATCHER = Event->timer (	3916	sub tick {
2793	reentrant => 0,
2794	parked => 1,
2795	prio => 0,
2796	at => $NEXT_TICK || $TICK,
2797	data => WF_AUTOCANCEL,
2798	cb => sub {
2799	if ($Coro::current != $Coro::main) {	3917	if ($Coro::current != $Coro::main) {
2800	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3918	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2801	unless ++$bug_warning > 10;	3919	unless ++$bug_warning > 10;
2802	return;	3920	return;
2803	}	3921	}
2804		3922
2805	$NOW = Event::time;
2806
2807	cf::server_tick; # one server iteration	3923	cf::server_tick; # one server iteration
2808		3924
2809	$RUNTIME += $TICK;
2810	$NEXT_TICK += $TICK;
2811
2812	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3925	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2813	$NEXT_RUNTIME_WRITE = $NOW + 10;	3926	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2814	Coro::async_pool {	3927	Coro::async_pool {
		3928	$Coro::current->{desc} = "runtime saver";
2815	write_runtime	3929	write_runtime_sync
2816	or warn "ERROR: unable to write runtime file: $!";	3930	or warn "ERROR: unable to write runtime file: $!";
2817	};
2818	}	3931	};
		3932	}
2819		3933
2820	# my $AFTER = Event::time;
2821	# warn $AFTER - $NOW;#d#
2822
2823	# if we are delayed by four ticks or more, skip them all
2824	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2825
2826	$TICK_WATCHER->at ($NEXT_TICK);
2827	$TICK_WATCHER->start;
2828
2829	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3934	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2830	$sig->send;	3935	$sig->send;
2831	}	3936	}
2832	while (my $sig = shift @WAIT_FOR_TICK) {	3937	while (my $sig = shift @WAIT_FOR_TICK) {
2833	$sig->send;	3938	$sig->send;
2834	}
2835
2836	_post_tick;
2837	},	3939	}
2838	);	3940
		3941	$LOAD = ($NOW - $TICK_START) / $TICK;
		3942	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3943
		3944	if (0) {
		3945	if ($NEXT_TICK) {
		3946	my $jitter = $TICK_START - $NEXT_TICK;
		3947	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3948	warn "jitter $JITTER\n";#d#
		3949	}
		3950	}
		3951	}
2839		3952
2840	{	3953	{
2841	BDB::max_poll_time $TICK * 0.1;	3954	# configure BDB
2842	$BDB_POLL_WATCHER = Event->io (	3955
2843	reentrant => 0,
2844	fd => BDB::poll_fileno,
2845	poll => 'r',
2846	prio => 0,
2847	data => WF_AUTOCANCEL,
2848	cb => \&BDB::poll_cb,
2849	);
2850	BDB::min_parallel 8;	3956	BDB::min_parallel 8;
2851		3957	BDB::max_poll_reqs $TICK * 0.1;
2852	BDB::set_sync_prepare {	3958	$AnyEvent::BDB::WATCHER->priority (1);
2853	my $status;
2854	my $current = $Coro::current;
2855	(
2856	sub {
2857	$status = $!;
2858	$current->ready; undef $current;
2859	},
2860	sub {
2861	Coro::schedule while defined $current;
2862	$! = $status;
2863	},
2864	)
2865	};
2866		3959
2867	unless ($DB_ENV) {	3960	unless ($DB_ENV) {
2868	$DB_ENV = BDB::db_env_create;	3961	$DB_ENV = BDB::db_env_create;
		3962	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3963	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3964	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3965	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3966	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2869		3967
2870	cf::sync_job {	3968	cf::sync_job {
2871	eval {	3969	eval {
2872	BDB::db_env_open	3970	BDB::db_env_open
2873	$DB_ENV,	3971	$DB_ENV,
2874	$BDB_ENV_DIR,	3972	$BDBDIR,
2875	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3973	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2876	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3974	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2877	0666;	3975	0666;
2878		3976
2879	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3977	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2880
2881	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2882	$DB_ENV->set_lk_detect;
2883	};	3978	};
2884		3979
2885	cf::cleanup "db_env_open(db): $@" if $@;	3980	cf::cleanup "db_env_open(db): $@" if $@;
2886	};	3981	};
2887	}	3982	}
		3983
		3984	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3985	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3986	};
		3987	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3988	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3989	};
		3990	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3991	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3992	};
2888	}	3993	}
2889		3994
2890	{	3995	{
		3996	# configure IO::AIO
		3997
2891	IO::AIO::min_parallel 8;	3998	IO::AIO::min_parallel 8;
2892
2893	undef $Coro::AIO::WATCHER;
2894	IO::AIO::max_poll_time $TICK * 0.1;	3999	IO::AIO::max_poll_time $TICK * 0.1;
2895	$AIO_POLL_WATCHER = Event->io (	4000	undef $AnyEvent::AIO::WATCHER;
2896	reentrant => 0,	4001	}
2897	data => WF_AUTOCANCEL,	4002
2898	fd => IO::AIO::poll_fileno,	4003	my $_log_backtrace;
2899	poll => 'r',	4004
2900	prio => 6,	4005	sub _log_backtrace {
2901	cb => \&IO::AIO::poll_cb,	4006	my ($msg, @addr) = @_;
2902	);	4007
		4008	$msg =~ s/\n//;
		4009
		4010	# limit the # of concurrent backtraces
		4011	if ($_log_backtrace < 2) {
		4012	++$_log_backtrace;
		4013	my $perl_bt = Carp::longmess $msg;
		4014	async {
		4015	$Coro::current->{desc} = "abt $msg";
		4016
		4017	my @bt = fork_call {
		4018	@addr = map { sprintf "%x", $_ } @addr;
		4019	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4020	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4021	or die "addr2line: $!";
		4022
		4023	my @funcs;
		4024	my @res = <$fh>;
		4025	chomp for @res;
		4026	while (@res) {
		4027	my ($func, $line) = splice @res, 0, 2, ();
		4028	push @funcs, "[$func] $line";
		4029	}
		4030
		4031	@funcs
		4032	};
		4033
		4034	LOG llevInfo, "[ABT] $perl_bt\n";
		4035	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4036	LOG llevInfo, "[ABT] $_\n" for @bt;
		4037	--$_log_backtrace;
		4038	};
		4039	} else {
		4040	LOG llevInfo, "[ABT] $msg\n";
		4041	LOG llevInfo, "[ABT] [suppressed]\n";
		4042	}
2903	}	4043	}
2904		4044
2905	# load additional modules	4045	# load additional modules
2906	use cf::pod;	4046	require "cf/$_.pm" for @EXTRA_MODULES;
		4047	cf::_connect_to_perl_2;
2907		4048
2908	END { cf::emergency_save }	4049	END { cf::emergency_save }
2909		4050
2910	1	4051	1
2911		4052

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