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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.207 by root, Sun Feb 11 22:42:09 2007 UTC vs.
Revision 1.480 by root, Thu Oct 8 05:09:43 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
		37	use Guard ();
13	use Coro 3.5 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
20	use BDB ();	54	use BDB ();
21	use Data::Dumper;	55	use Data::Dumper;
22	use Digest::MD5;	56	use Digest::MD5;
23	use Fcntl;	57	use Fcntl;
		58	use YAML ();
24	use IO::AIO 2.32 ();	59	use IO::AIO ();
25	use YAML::Syck ();
26	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
27		63
28	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
		65
		66	# configure various modules to our taste
		67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		76
		77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
29		79
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31
32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
33	$YAML::Syck::ImplicitUnicode = 1;
34
35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
36		81
37	our %COMMAND = ();	82	our %COMMAND = ();
38	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
39		84
40	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
44		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
45	our @EVENT;	92	our @EVENT;
46	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
47		95
48	our $TICK = MAX_TIME * 1e-6;	96	our $CONFDIR = confdir;
49	our $TICK_WATCHER;	97	our $DATADIR = datadir;
50	our $AIO_POLL_WATCHER;	98	our $LIBDIR = "$DATADIR/ext";
51	our $WRITE_RUNTIME_WATCHER;	99	our $PODDIR = "$DATADIR/pod";
		100	our $MAPDIR = "$DATADIR/" . mapdir;
		101	our $LOCALDIR = localdir;
		102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		105	our $RANDOMDIR = "$LOCALDIR/random";
		106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
		111
		112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	114	our $NEXT_TICK;
53	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
55		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
56	our $BDB_POLL_WATCHER;	119	our $BDB_TRICKLE_WATCHER;
57	our $DB_ENV;	120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod mapscript);
58		123
59	our %CFG;	124	our %CFG;
60		125
61	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
62	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
63		129
64	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
65	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	132	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		133
73	# used to convert map paths into valid unix filenames by replacing / by ∕	134	# used to convert map paths into valid unix filenames by replacing / by ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
		146
76	binmode STDOUT;	147	binmode STDOUT;
77	binmode STDERR;	148	binmode STDERR;
78		149
79	# read virtual server time, if available	150	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
81	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
82	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
83	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
84	}	155	}
85		156
86	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
87	mkdir cf::localdir . "/" . cf::playerdir;	158
88	mkdir cf::localdir . "/" . cf::tmpdir;	159	mkdir $_
89	mkdir cf::localdir . "/" . cf::uniquedir;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		161
93	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
94		163
95	sub cf::map::normalise;	164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
		173
		174	# this is decidedly evil
		175	$REFLECT{object}{flags} = [grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"}];
96		176
97	#############################################################################	177	#############################################################################
98		178
99	=head2 GLOBAL VARIABLES	179	=head2 GLOBAL VARIABLES
100		180
…		…
107	=item $cf::RUNTIME	187	=item $cf::RUNTIME
108		188
109	The time this server has run, starts at 0 and is increased by $cf::TICK on	189	The time this server has run, starts at 0 and is increased by $cf::TICK on
110	every server tick.	190	every server tick.
111		191
112	=item $cf::LIBDIR	192	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		193	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		194	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
113		195
114	The perl library directory, where extensions and cf-specific modules can	196	Various directories - "/etc", read-only install directory, perl-library
115	be found. It will be added to C<@INC> automatically.	197	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		198	unique-items directory, player file directory, random maps directory and
		199	database environment.
116		200
117	=item $cf::NOW	201	=item $cf::NOW
118		202
119	The time of the last (current) server tick.	203	The time of the last (current) server tick.
120		204
121	=item $cf::TICK	205	=item $cf::TICK
122		206
123	The interval between server ticks, in seconds.	207	The interval between server ticks, in seconds.
124		208
		209	=item $cf::LOADAVG
		210
		211	The current CPU load on the server (alpha-smoothed), as a value between 0
		212	(none) and 1 (overloaded), indicating how much time is spent on processing
		213	objects per tick. Healthy values are < 0.5.
		214
		215	=item $cf::LOAD
		216
		217	The raw value load value from the last tick.
		218
125	=item %cf::CFG	219	=item %cf::CFG
126		220
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	221	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
128	from wherever your confdir points to.	222	from wherever your confdir points to.
129		223
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	224	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		225
132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	226	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	227	returns directly I<after> the tick processing (and consequently, can only wake one process
134	processing has been done. Call C<< ->wait >> on them to maximise the	228	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
135	window of cpu time available, or simply to synchronise to the server tick.	229
		230	=item @cf::INVOKE_RESULTS
		231
		232	This array contains the results of the last C<invoke ()> call. When
		233	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		234	that call.
		235
		236	=item %cf::REFLECT
		237
		238	Contains, for each (C++) class name, a hash reference with information
		239	about object members (methods, scalars, arrays and flags) and other
		240	metadata, which is useful for introspection.
136		241
137	=back	242	=back
138		243
139	=cut	244	=cut
140		245
141	BEGIN {	246	$Coro::State::WARNHOOK = sub {
142	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	247	my $msg = join "", @_;
144	utf8::encode $msg;
145		248
146	$msg .= "\n"	249	$msg .= "\n"
147	unless $msg =~ /\n$/;	250	unless $msg =~ /\n$/;
148		251
		252	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		253
149	LOG llevError, $msg;	254	LOG llevError, $msg;
150	};	255	};
151	}	256
		257	$Coro::State::DIEHOOK = sub {
		258	return unless $^S eq 0; # "eq", not "=="
		259
		260	warn Carp::longmess $_[0];
		261
		262	if ($Coro::current == $Coro::main) {#d#
		263	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		264	return;#d#
		265	}#d#
		266
		267	# kill coroutine otherwise
		268	Coro::terminate
		269	};
152		270
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	271	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	272	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	273	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	274	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	275	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		276	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
158	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	277	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
159		278
160	# we bless all objects into (empty) derived classes to force a method lookup	279	# we bless all objects into (empty) derived classes to force a method lookup
161	# within the Safe compartment.	280	# within the Safe compartment.
162	for my $pkg (qw(	281	for my $pkg (qw(
163	cf::global cf::attachable	282	cf::global cf::attachable
164	cf::object cf::object::player	283	cf::object cf::object::player
165	cf::client cf::player	284	cf::client cf::player
166	cf::arch cf::living	285	cf::arch cf::living
		286	cf::map cf::mapspace
167	cf::map cf::party cf::region	287	cf::party cf::region
168	)) {	288	)) {
169	no strict 'refs';
170	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	289	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
171	}	290	}
172		291
173	$Event::DIED = sub {	292	$EV::DIED = sub {
174	warn "error in event callback: @_";	293	warn "error in event callback: @_";
175	};	294	};
		295
		296	#############################################################################
176		297
177	=head2 UTILITY FUNCTIONS	298	=head2 UTILITY FUNCTIONS
178		299
179	=over 4	300	=over 4
180		301
…		…
199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	320	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
200	$d	321	$d
201	} || "[unable to dump $_[0]: '$@']";	322	} || "[unable to dump $_[0]: '$@']";
202	}	323	}
203		324
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	325	=item $ref = cf::decode_json $json
207		326
208	Converts a JSON string into the corresponding perl data structure.	327	Converts a JSON string into the corresponding perl data structure.
209		328
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	329	=item $json = cf::encode_json $ref
218		330
219	Converts a perl data structure into its JSON representation.	331	Converts a perl data structure into its JSON representation.
220		332
221	=cut	333	=cut
222		334
223	sub to_json($) {	335	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	336
225	JSON::Syck::Dump $_[0]	337	sub encode_json($) { $json_coder->encode ($_[0]) }
		338	sub decode_json($) { $json_coder->decode ($_[0]) }
		339
		340	=item cf::post_init { BLOCK }
		341
		342	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		343	but I<before> the server starts ticking again.
		344
		345	The cdoeblock will have a single boolean argument to indicate whether this
		346	is a reload or not.
		347
		348	=cut
		349
		350	sub post_init(&) {
		351	push @POST_INIT, shift;
226	}	352	}
227		353
228	=item cf::lock_wait $string	354	=item cf::lock_wait $string
229		355
230	Wait until the given lock is available. See cf::lock_acquire.	356	Wait until the given lock is available. See cf::lock_acquire.
231		357
232	=item my $lock = cf::lock_acquire $string	358	=item my $lock = cf::lock_acquire $string
233		359
234	Wait until the given lock is available and then acquires it and returns	360	Wait until the given lock is available and then acquires it and returns
235	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	361	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
236	for example when the coroutine gets canceled), the lock is automatically	362	for example when the coroutine gets canceled), the lock is automatically
237	returned.	363	returned.
238		364
		365	Locks are *not* recursive, locking from the same coro twice results in a
		366	deadlocked coro.
		367
239	Lock names should begin with a unique identifier (for example, cf::map::find	368	Lock names should begin with a unique identifier (for example, cf::map::find
240	uses map_find and cf::map::load uses map_load).	369	uses map_find and cf::map::load uses map_load).
241		370
242	=cut	371	=item $locked = cf::lock_active $string
243		372
244	our %LOCK;	373	Return true if the lock is currently active, i.e. somebody has locked it.
		374
		375	=cut
		376
		377	our $LOCKS = new Coro::SemaphoreSet;
245		378
246	sub lock_wait($) {	379	sub lock_wait($) {
247	my ($key) = @_;	380	$LOCKS->wait ($_[0]);
248
249	# wait for lock, if any
250	while ($LOCK{$key}) {
251	push @{ $LOCK{$key} }, $Coro::current;
252	Coro::schedule;
253	}
254	}	381	}
255		382
256	sub lock_acquire($) {	383	sub lock_acquire($) {
257	my ($key) = @_;	384	$LOCKS->guard ($_[0])
		385	}
258		386
259	# wait, to be sure we are not locked	387	sub lock_active($) {
260	lock_wait $key;	388	$LOCKS->count ($_[0]) < 1
261
262	$LOCK{$key} = [];
263
264	Coro::guard {
265	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };
267	}
268	}	389	}
269		390
270	sub freeze_mainloop {	391	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	392	tick_inhibit_inc;
272		393
273	my $guard = Coro::guard {	394	&Guard::guard (\&tick_inhibit_dec);
274	$TICK_WATCHER->start;	395	}
275	$WRITE_RUNTIME_WATCHER->start;	396
		397	=item cf::periodic $interval, $cb
		398
		399	Like EV::periodic, but randomly selects a starting point so that the actions
		400	get spread over timer.
		401
		402	=cut
		403
		404	sub periodic($$) {
		405	my ($interval, $cb) = @_;
		406
		407	my $start = rand List::Util::min 180, $interval;
		408
		409	EV::periodic $start, $interval, 0, $cb
		410	}
		411
		412	=item cf::get_slot $time[, $priority[, $name]]
		413
		414	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		415	This call blocks and returns only when you have at least C<$time> seconds
		416	of cpu time till the next tick. The slot is only valid till the next cede.
		417
		418	The optional C<$name> can be used to identify the job to run. It might be
		419	used for statistical purposes and should identify the same time-class.
		420
		421	Useful for short background jobs.
		422
		423	=cut
		424
		425	our @SLOT_QUEUE;
		426	our $SLOT_QUEUE;
		427
		428	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		429	$SLOT_QUEUE = Coro::async {
		430	$Coro::current->desc ("timeslot manager");
		431
		432	my $signal = new Coro::Signal;
		433
		434	while () {
		435	next_job:
		436	my $avail = cf::till_tick;
		437	if ($avail > 0.01) {
		438	for (0 .. $#SLOT_QUEUE) {
		439	if ($SLOT_QUEUE[$_][0] < $avail) {
		440	my $job = splice @SLOT_QUEUE, $_, 1, ();
		441	$job->[2]->send;
		442	Coro::cede;
		443	goto next_job;
		444	}
		445	}
		446	}
		447
		448	if (@SLOT_QUEUE) {
		449	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		450	push @cf::WAIT_FOR_TICK, $signal;
		451	$signal->wait;
		452	} else {
		453	Coro::schedule;
		454	}
276	};	455	}
277	$WRITE_RUNTIME_WATCHER->stop;	456	};
278	$TICK_WATCHER->stop;	457
279	$guard	458	sub get_slot($;$$) {
		459	return if tick_inhibit || $Coro::current == $Coro::main;
		460
		461	my ($time, $pri, $name) = @_;
		462
		463	$time = $TICK * .6 if $time > $TICK * .6;
		464	my $sig = new Coro::Signal;
		465
		466	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		467	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		468	$SLOT_QUEUE->ready;
		469	$sig->wait;
280	}	470	}
281		471
282	=item cf::async { BLOCK }	472	=item cf::async { BLOCK }
283		473
284	Currently the same as Coro::async_pool, meaning you cannot use	474	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		479
290	BEGIN { *async = \&Coro::async_pool }	480	BEGIN { *async = \&Coro::async_pool }
291		481
292	=item cf::sync_job { BLOCK }	482	=item cf::sync_job { BLOCK }
293		483
294	The design of crossfire+ requires that the main coro ($Coro::main) is	484	The design of Deliantra requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	485	is always able to handle events or runnable, as Deliantra is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	486	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		487	acceptable.
297		488
298	If it must be done, put the blocking parts into C<sync_job>. This will run	489	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	490	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	491	server will be frozen during this time, so the block should either finish
301	fast or be very important.	492	fast or be very important.
…		…
304		495
305	sub sync_job(&) {	496	sub sync_job(&) {
306	my ($job) = @_;	497	my ($job) = @_;
307		498
308	if ($Coro::current == $Coro::main) {	499	if ($Coro::current == $Coro::main) {
		500	my $time = EV::time;
		501
309	# this is the main coro, too bad, we have to block	502	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	503	# till the operation succeeds, freezing the server :/
311		504
312	# TODO: use suspend/resume instead	505	LOG llevError, Carp::longmess "sync job";#d#
313	# (but this is cancel-safe)	506
314	my $freeze_guard = freeze_mainloop;	507	my $freeze_guard = freeze_mainloop;
315		508
316	my $busy = 1;	509	my $busy = 1;
317	my @res;	510	my @res;
318		511
319	(async {	512	(async {
		513	$Coro::current->desc ("sync job coro");
320	@res = eval { $job->() };	514	@res = eval { $job->() };
321	warn $@ if $@;	515	warn $@ if $@;
322	undef $busy;	516	undef $busy;
323	})->prio (Coro::PRIO_MAX);	517	})->prio (Coro::PRIO_MAX);
324		518
325	while ($busy) {	519	while ($busy) {
326	Coro::cede or Event::one_event;	520	if (Coro::nready) {
		521	Coro::cede_notself;
		522	} else {
		523	EV::loop EV::LOOP_ONESHOT;
327	}	524	}
		525	}
		526
		527	my $time = EV::time - $time;
		528
		529	$TICK_START += $time; # do not account sync jobs to server load
328		530
329	wantarray ? @res : $res[0]	531	wantarray ? @res : $res[0]
330	} else {	532	} else {
331	# we are in another coroutine, how wonderful, everything just works	533	# we are in another coroutine, how wonderful, everything just works
332		534
…		…
352	$EXT_CORO{$coro+0} = $coro;	554	$EXT_CORO{$coro+0} = $coro;
353		555
354	$coro	556	$coro
355	}	557	}
356		558
357	sub write_runtime {	559	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		560
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	561	Executes the given code block with the given arguments in a seperate
361	or return;	562	process, returning the results. Everything must be serialisable with
		563	Coro::Storable. May, of course, block. Note that the executed sub may
		564	never block itself or use any form of event handling.
362		565
363	my $value = $cf::RUNTIME + 90 + 10;	566	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		567
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	568	sub fork_call(&@) {
368	and return;	569	my ($cb, @args) = @_;
369		570
370	# always fsync - this file is important	571	# we seemingly have to make a local copy of the whole thing,
371	aio_fsync $fh	572	# otherwise perl prematurely frees the stuff :/
372	and return;	573	# TODO: investigate and fix (likely this will be rather laborious)
373		574
374	close $fh	575	my @res = Coro::Util::fork_eval {
375	or return;	576	reset_signals;
		577	&$cb
		578	}, @args;
376		579
377	aio_rename "$runtime~", $runtime	580	wantarray ? @res : $res[-1]
378	and return;	581	}
379		582
		583	=item $coin = coin_from_name $name
		584
		585	=cut
		586
		587	our %coin_alias = (
		588	"silver" => "silvercoin",
		589	"silvercoin" => "silvercoin",
		590	"silvercoins" => "silvercoin",
		591	"gold" => "goldcoin",
		592	"goldcoin" => "goldcoin",
		593	"goldcoins" => "goldcoin",
		594	"platinum" => "platinacoin",
		595	"platinumcoin" => "platinacoin",
		596	"platinumcoins" => "platinacoin",
		597	"platina" => "platinacoin",
		598	"platinacoin" => "platinacoin",
		599	"platinacoins" => "platinacoin",
		600	"royalty" => "royalty",
		601	"royalties" => "royalty",
		602	);
		603
		604	sub coin_from_name($) {
		605	$coin_alias{$_[0]}
		606	? cf::arch::find $coin_alias{$_[0]}
		607	: undef
		608	}
		609
		610	=item $value = cf::db_get $family => $key
		611
		612	Returns a single value from the environment database.
		613
		614	=item cf::db_put $family => $key => $value
		615
		616	Stores the given C<$value> in the family. It can currently store binary
		617	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		618
		619	=item $db = cf::db_table "name"
		620
		621	Create and/or open a new database table. The string must not be "db" and must be unique
		622	within each server.
		623
		624	=cut
		625
		626	sub db_table($) {
		627	my ($name) = @_;
		628	my $db = BDB::db_create $DB_ENV;
		629
		630	eval {
		631	$db->set_flags (BDB::CHKSUM);
		632
		633	utf8::encode $name;
		634	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		635	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		636	cf::cleanup "db_open(db): $!" if $!;
		637	};
		638	cf::cleanup "db_open(db): $@" if $@;
		639
		640	$db
		641	}
		642
		643	our $DB;
		644
		645	sub db_init {
		646	cf::sync_job {
		647	$DB ||= db_table "db";
		648	};
		649	}
		650
		651	sub db_get($$) {
		652	my $key = "$_[0]/$_[1]";
		653
		654	cf::sync_job {
		655	BDB::db_get $DB, undef, $key, my $data;
		656
		657	$! ? ()
		658	: $data
380	1	659	}
		660	}
		661
		662	sub db_put($$$) {
		663	BDB::dbreq_pri 4;
		664	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		665	}
		666
		667	=item cf::cache $id => [$paths...], $processversion => $process
		668
		669	Generic caching function that returns the value of the resource $id,
		670	caching and regenerating as required.
		671
		672	This function can block.
		673
		674	=cut
		675
		676	sub cache {
		677	my ($id, $src, $processversion, $process) = @_;
		678
		679	my $meta =
		680	join "\x00",
		681	$processversion,
		682	map {
		683	aio_stat $_
		684	and Carp::croak "$_: $!";
		685
		686	($_, (stat _)[7,9])
		687	} @$src;
		688
		689	my $dbmeta = db_get cache => "$id/meta";
		690	if ($dbmeta ne $meta) {
		691	# changed, we may need to process
		692
		693	my @data;
		694	my $md5;
		695
		696	for (0 .. $#$src) {
		697	0 <= aio_load $src->[$_], $data[$_]
		698	or Carp::croak "$src->[$_]: $!";
		699	}
		700
		701	# if processing is expensive, check
		702	# checksum first
		703	if (1) {
		704	$md5 =
		705	join "\x00",
		706	$processversion,
		707	map {
		708	cf::cede_to_tick;
		709	($src->[$_], Digest::MD5::md5_hex $data[$_])
		710	} 0.. $#$src;
		711
		712
		713	my $dbmd5 = db_get cache => "$id/md5";
		714	if ($dbmd5 eq $md5) {
		715	db_put cache => "$id/meta", $meta;
		716
		717	return db_get cache => "$id/data";
		718	}
		719	}
		720
		721	my $t1 = Time::HiRes::time;
		722	my $data = $process->(\@data);
		723	my $t2 = Time::HiRes::time;
		724
		725	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		726
		727	db_put cache => "$id/data", $data;
		728	db_put cache => "$id/md5" , $md5;
		729	db_put cache => "$id/meta", $meta;
		730
		731	return $data;
		732	}
		733
		734	db_get cache => "$id/data"
		735	}
		736
		737	=item cf::datalog type => key => value, ...
		738
		739	Log a datalog packet of the given type with the given key-value pairs.
		740
		741	=cut
		742
		743	sub datalog($@) {
		744	my ($type, %kv) = @_;
		745	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	746	}
382		747
383	=back	748	=back
384		749
385	=cut	750	=cut
386		751
387	#############################################################################	752	#############################################################################
388		753
389	=head2 ATTACHABLE OBJECTS	754	=head2 ATTACHABLE OBJECTS
390		755
391	Many objects in crossfire are so-called attachable objects. That means you can	756	Many objects in deliantra are so-called attachable objects. That means you can
392	attach callbacks/event handlers (a collection of which is called an "attachment")	757	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	758	to it. All such attachable objects support the following methods.
394		759
395	In the following description, CLASS can be any of C<global>, C<object>	760	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	761	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	762	Deliantra).
398		763
399	=over 4	764	=over 4
400		765
401	=item $attachable->attach ($attachment, key => $value...)	766	=item $attachable->attach ($attachment, key => $value...)
402		767
…		…
446	=item cf::CLASS::attachment $name, ...	811	=item cf::CLASS::attachment $name, ...
447		812
448	Register an attachment by C<$name> through which attachable objects of the	813	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	814	given CLASS can refer to this attachment.
450		815
451	Some classes such as crossfire maps and objects can specify attachments	816	Some classes such as deliantra maps and objects can specify attachments
452	that are attached at load/instantiate time, thus the need for a name.	817	that are attached at load/instantiate time, thus the need for a name.
453		818
454	These calls expect any number of the following handler/hook descriptions:	819	These calls expect any number of the following handler/hook descriptions:
455		820
456	=over 4	821	=over 4
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	930	$registry = $CB_TYPE[$object_type] ||= [];
566		931
567	} elsif ($type eq "subtype") {	932	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	933	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	934	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	935	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		936
572	} elsif ($type eq "package") {	937	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	938	my $pkg = shift @arg;
574		939
575	while (my ($name, $id) = each %cb_id) {	940	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	969	_attach $registry, $klass, @attach;
605	}	970	}
606		971
607	$obj->{$name} = \%arg;	972	$obj->{$name} = \%arg;
608	} else {	973	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	974	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	975	}
611		976
612	$obj->{_attachment}{$name} = undef;	977	$obj->{_attachment}{$name} = undef;
613	}	978	}
614		979
…		…
616	if (ref $_[0]) {	981	if (ref $_[0]) {
617	_object_attach @_;	982	_object_attach @_;
618	} else {	983	} else {
619	_attach shift->_attach_registry, @_;	984	_attach shift->_attach_registry, @_;
620	}	985	}
		986	_recalc_want;
621	};	987	};
622		988
623	# all those should be optimised	989	# all those should be optimised
624	sub cf::attachable::detach {	990	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	991	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	994	delete $obj->{_attachment}{$name};
629	reattach ($obj);	995	reattach ($obj);
630	} else {	996	} else {
631	Carp::croak "cannot, currently, detach class attachments";	997	Carp::croak "cannot, currently, detach class attachments";
632	}	998	}
		999	_recalc_want;
633	};	1000	};
634		1001
635	sub cf::attachable::attached {	1002	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1003	my ($obj, $name) = @_;
637		1004
…		…
652	";	1019	";
653	die if $@;	1020	die if $@;
654	}	1021	}
655		1022
656	our $override;	1023	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1024	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1025
659	sub override {	1026	sub override {
660	$override = 1;	1027	$override = 1;
661	@invoke_results = ();	1028	@INVOKE_RESULTS = (@_);
662	}	1029	}
663		1030
664	sub do_invoke {	1031	sub do_invoke {
665	my $event = shift;	1032	my $event = shift;
666	my $callbacks = shift;	1033	my $callbacks = shift;
667		1034
668	@invoke_results = ();	1035	@INVOKE_RESULTS = ();
669		1036
670	local $override;	1037	local $override;
671		1038
672	for (@$callbacks) {	1039	for (@$callbacks) {
673	eval { &{$_->[1]} };	1040	eval { &{$_->[1]} };
…		…
682	}	1049	}
683		1050
684	0	1051	0
685	}	1052	}
686		1053
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1054	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1055
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1057
691	Generate an object-specific event with the given arguments.	1058	Generate an object-specific event with the given arguments.
692		1059
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1060	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1061	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1062	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1063
697	=back	1064	=back
698		1065
699	=cut	1066	=cut
700		1067
701	#############################################################################	1068	#############################################################################
702	# object support	1069	# object support
		1070
		1071	sub _object_equal($$);
		1072	sub _object_equal($$) {
		1073	my ($a, $b) = @_;
		1074
		1075	return 0 unless (ref $a) eq (ref $b);
		1076
		1077	if ("HASH" eq ref $a) {
		1078	my @ka = keys %$a;
		1079	my @kb = keys %$b;
		1080
		1081	return 0 if @ka != @kb;
		1082
		1083	for (0 .. $#ka) {
		1084	return 0 unless $ka[$_] eq $kb[$_];
		1085	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1086	}
		1087
		1088	} elsif ("ARRAY" eq ref $a) {
		1089
		1090	return 0 if @$a != @$b;
		1091
		1092	for (0 .. $#$a) {
		1093	return 0 unless _object_equal $a->[$_], $b->[$_];
		1094	}
		1095
		1096	} elsif ($a ne $b) {
		1097	return 0;
		1098	}
		1099
		1100	1
		1101	}
		1102
		1103	our $SLOW_MERGES;#d#
		1104	sub _can_merge {
		1105	my ($ob1, $ob2) = @_;
		1106
		1107	++$SLOW_MERGES;#d#
		1108
		1109	# we do the slow way here
		1110	return _object_equal $ob1, $ob2
		1111	}
703		1112
704	sub reattach {	1113	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1114	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1115	my ($obj) = @_;
707		1116
		1117	# no longer needed after getting rid of delete_package?
708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1118	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
709		1119
710	my $registry = $obj->registry;	1120	my $registry = $obj->registry;
711		1121
712	@$registry = ();	1122	@$registry = ();
713		1123
…		…
728	cf::attachable->attach (	1138	cf::attachable->attach (
729	prio => -1000000,	1139	prio => -1000000,
730	on_instantiate => sub {	1140	on_instantiate => sub {
731	my ($obj, $data) = @_;	1141	my ($obj, $data) = @_;
732		1142
733	$data = from_json $data;	1143	$data = decode_json $data;
734		1144
735	for (@$data) {	1145	for (@$data) {
736	my ($name, $args) = @$_;	1146	my ($name, $args) = @$_;
737		1147
738	$obj->attach ($name, %{$args || {} });	1148	$obj->attach ($name, %{$args || {} });
…		…
754	sub object_freezer_save {	1164	sub object_freezer_save {
755	my ($filename, $rdata, $objs) = @_;	1165	my ($filename, $rdata, $objs) = @_;
756		1166
757	sync_job {	1167	sync_job {
758	if (length $$rdata) {	1168	if (length $$rdata) {
		1169	utf8::decode (my $decname = $filename);
759	warn sprintf "saving %s (%d,%d)\n",	1170	warn sprintf "saving %s (%d,%d)\n",
760	$filename, length $$rdata, scalar @$objs;	1171	$decname, length $$rdata, scalar @$objs;
761		1172
762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1173	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
763	chmod SAVE_MODE, $fh;	1174	aio_chmod $fh, SAVE_MODE;
764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1175	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
765	aio_fsync $fh if $cf::USE_FSYNC;	1176	if ($cf::USE_FSYNC) {
		1177	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1178	aio_fsync $fh;
		1179	}
766	close $fh;	1180	aio_close $fh;
767		1181
768	if (@$objs) {	1182	if (@$objs) {
769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1183	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
770	chmod SAVE_MODE, $fh;	1184	aio_chmod $fh, SAVE_MODE;
771	my $data = Storable::nfreeze { version => 1, objs => $objs };	1185	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
772	aio_write $fh, 0, (length $data), $data, 0;	1186	aio_write $fh, 0, (length $data), $data, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1187	if ($cf::USE_FSYNC) {
		1188	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1189	aio_fsync $fh;
		1190	}
774	close $fh;	1191	aio_close $fh;
775	aio_rename "$filename.pst~", "$filename.pst";	1192	aio_rename "$filename.pst~", "$filename.pst";
776	}	1193	}
777	} else {	1194	} else {
778	aio_unlink "$filename.pst";	1195	aio_unlink "$filename.pst";
779	}	1196	}
780		1197
781	aio_rename "$filename~", $filename;	1198	aio_rename "$filename~", $filename;
		1199
		1200	$filename =~ s%/[^/]+$%%;
		1201	aio_pathsync $filename if $cf::USE_FSYNC;
782	} else {	1202	} else {
783	warn "FATAL: $filename~: $!\n";	1203	warn "unable to save objects: $filename~: $!\n";
784	}	1204	}
785	} else {	1205	} else {
786	aio_unlink $filename;	1206	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1207	aio_unlink "$filename.pst";
788	}	1208	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1209	};
796	}	1210	}
797		1211
798	sub object_freezer_as_string {	1212	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1213	my ($rdata, $objs) = @_;
800		1214
…		…
805		1219
806	sub object_thawer_load {	1220	sub object_thawer_load {
807	my ($filename) = @_;	1221	my ($filename) = @_;
808		1222
809	my ($data, $av);	1223	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1224
814	(aio_load $filename, $data) >= 0	1225	(aio_load $filename, $data) >= 0
815	or return;	1226	or return;
816		1227
817	unless (aio_stat "$filename.pst") {	1228	unless (aio_stat "$filename.pst") {
818	(aio_load "$filename.pst", $av) >= 0	1229	(aio_load "$filename.pst", $av) >= 0
819	or return;	1230	or return;
		1231
820	$av = eval { (Storable::thaw $av)->{objs} };	1232	my $st = eval { Coro::Storable::thaw $av };
		1233	$av = $st->{objs};
821	}	1234	}
822		1235
		1236	utf8::decode (my $decname = $filename);
823	warn sprintf "loading %s (%d)\n",	1237	warn sprintf "loading %s (%d,%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1238	$decname, length $data, scalar @{$av || []};
		1239
825	return ($data, $av);	1240	($data, $av)
826	}	1241	}
		1242
		1243	=head2 COMMAND CALLBACKS
		1244
		1245	=over 4
		1246
		1247	=cut
827		1248
828	#############################################################################	1249	#############################################################################
829	# command handling &c	1250	# command handling &c
830		1251
831	=item cf::register_command $name => \&callback($ob,$args);	1252	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1265	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1266	}
846		1267
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1268	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1269
849	Register a callbackf ro execution when the client sends an extcmd packet.	1270	Register a callback for execution when the client sends an (synchronous)
		1271	extcmd packet. Ext commands will be processed in the order they are
		1272	received by the server, like other user commands. The first argument is
		1273	the logged-in player. Ext commands can only be processed after a player
		1274	has logged in successfully.
850		1275
851	If the callback returns something, it is sent back as if reply was being	1276	If the callback returns something, it is sent back as if reply was being
852	called.	1277	called.
853		1278
		1279	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1280
		1281	Register a callback for execution when the client sends an (asynchronous)
		1282	exticmd packet. Exti commands are processed by the server as soon as they
		1283	are received, i.e. out of order w.r.t. other commands. The first argument
		1284	is a client socket. Exti commands can be received anytime, even before
		1285	log-in.
		1286
		1287	If the callback returns something, it is sent back as if reply was being
		1288	called.
		1289
854	=cut	1290	=cut
855		1291
856	sub register_extcmd {	1292	sub register_extcmd {
857	my ($name, $cb) = @_;	1293	my ($name, $cb) = @_;
858		1294
859	$EXTCMD{$name} = $cb;	1295	$EXTCMD{$name} = $cb;
860	}	1296	}
		1297
		1298	sub register_exticmd {
		1299	my ($name, $cb) = @_;
		1300
		1301	$EXTICMD{$name} = $cb;
		1302	}
		1303
		1304	use File::Glob ();
861		1305
862	cf::player->attach (	1306	cf::player->attach (
863	on_command => sub {	1307	on_command => sub {
864	my ($pl, $name, $params) = @_;	1308	my ($pl, $name, $params) = @_;
865		1309
…		…
873	cf::override;	1317	cf::override;
874	},	1318	},
875	on_extcmd => sub {	1319	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1320	my ($pl, $buf) = @_;
877		1321
878	my $msg = eval { from_json $buf };	1322	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1323
880	if (ref $msg) {	1324	if (ref $msg) {
		1325	my ($type, $reply, @payload) =
		1326	"ARRAY" eq ref $msg
		1327	? @$msg
		1328	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1329
		1330	my @reply;
		1331
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1332	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1333	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1334	}
		1335
		1336	$pl->ext_reply ($reply, @reply)
		1337	if $reply;
		1338
886	} else {	1339	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1340	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1341	}
889		1342
890	cf::override;	1343	cf::override;
891	},	1344	},
892	);	1345	);
893		1346
		1347	# "readahead" all extensions
894	sub load_extension {	1348	sub cache_extensions {
895	my ($path) = @_;	1349	my $grp = IO::AIO::aio_group;
896		1350
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1351	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
898	my $base = $1;	1352	for (grep /\.ext$/, @{$_[0]}) {
899	my $pkg = $1;	1353	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}	1354	}
922	die $@;
923	}	1355	};
924		1356
925	push @EXTS, $pkg;	1357	$grp
926	}	1358	}
927		1359
928	sub load_extensions {	1360	sub load_extensions {
		1361	cf::sync_job {
		1362	my %todo;
		1363
929	for my $ext (<$LIBDIR/*.ext>) {	1364	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1365	next unless -r $path;
931	eval {	1366
932	load_extension $ext;	1367	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1368	my $base = $1;
		1369	my $pkg = $1;
		1370	$pkg =~ s/[^[:word:]]/_/g;
		1371	$pkg = "ext::$pkg";
		1372
		1373	open my $fh, "<:utf8", $path
		1374	or die "$path: $!";
		1375
		1376	my $source = do { local $/; <$fh> };
		1377
		1378	my %ext = (
		1379	path => $path,
		1380	base => $base,
		1381	pkg => $pkg,
		1382	);
		1383
		1384	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1385	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1386
		1387	$ext{source} =
		1388	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1389	. "#line 1 \"$path\"\n{\n"
		1390	. $source
		1391	. "\n};\n1";
		1392
		1393	$todo{$base} = \%ext;
		1394	}
		1395
		1396	my %done;
		1397	while (%todo) {
		1398	my $progress;
		1399
		1400	while (my ($k, $v) = each %todo) {
		1401	for (split /,\s*/, $v->{meta}{depends}) {
		1402	goto skip
		1403	unless exists $done{$_};
		1404	}
		1405
		1406	warn "... loading '$k' into '$v->{pkg}'\n";
		1407
		1408	unless (eval $v->{source}) {
		1409	my $msg = $@ ? "$v->{path}: $@\n"
		1410	: "$v->{base}: extension inactive.\n";
		1411
		1412	if (exists $v->{meta}{mandatory}) {
		1413	warn $msg;
		1414	cf::cleanup "mandatory extension failed to load, exiting.";
		1415	}
		1416
		1417	warn $msg;
		1418	}
		1419
		1420	$done{$k} = delete $todo{$k};
		1421	push @EXTS, $v->{pkg};
		1422	$progress = 1;
933	1	1423	}
934	} or warn "$ext not loaded: $@";	1424
		1425	skip:
		1426	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1427	unless $progress;
		1428	}
935	}	1429	};
936	}	1430	}
937		1431
938	#############################################################################	1432	#############################################################################
939		1433
		1434	=back
		1435
940	=head2 CORE EXTENSIONS	1436	=head2 CORE EXTENSIONS
941		1437
942	Functions and methods that extend core crossfire objects.	1438	Functions and methods that extend core deliantra objects.
943		1439
944	=cut	1440	=cut
945		1441
946	package cf::player;	1442	package cf::player;
947		1443
…		…
949		1445
950	=head3 cf::player	1446	=head3 cf::player
951		1447
952	=over 4	1448	=over 4
953		1449
		1450	=item cf::player::num_playing
		1451
		1452	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1453
		1454	=cut
		1455
		1456	sub num_playing {
		1457	scalar grep
		1458	$_->ob->map
		1459	&& !$_->hidden
		1460	&& !$_->ob->flag (cf::FLAG_WIZ),
		1461	cf::player::list
		1462	}
		1463
954	=item cf::player::find $login	1464	=item cf::player::find $login
955		1465
956	Returns the given player object, loading it if necessary (might block).	1466	Returns the given player object, loading it if necessary (might block).
957		1467
958	=cut	1468	=cut
959		1469
960	sub playerdir($) {	1470	sub playerdir($) {
961	cf::localdir	1471	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1472	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1473	}
967		1474
968	sub path($) {	1475	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1476	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1477
971	(playerdir $login) . "/$login.pl"	1478	(playerdir $login) . "/playerdata"
972	}	1479	}
973		1480
974	sub find_active($) {	1481	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1482	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1483	and $cf::PLAYER{$_[0]}->active
…		…
979		1486
980	sub exists($) {	1487	sub exists($) {
981	my ($login) = @_;	1488	my ($login) = @_;
982		1489
983	$cf::PLAYER{$login}	1490	$cf::PLAYER{$login}
984	or cf::sync_job { !aio_stat path $login }	1491	or !aio_stat path $login
985	}	1492	}
986		1493
987	sub find($) {	1494	sub find($) {
988	return $cf::PLAYER{$_[0]} || do {	1495	return $cf::PLAYER{$_[0]} || do {
989	my $login = $_[0];	1496	my $login = $_[0];
990		1497
991	my $guard = cf::lock_acquire "user_find:$login";	1498	my $guard = cf::lock_acquire "user_find:$login";
992		1499
993	$cf::PLAYER{$_[0]} || do {	1500	$cf::PLAYER{$_[0]} || do {
994	my $pl = load_pl path $login	1501	# rename old playerfiles to new ones
		1502	#TODO: remove when no longer required
		1503	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1504	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1505	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1506	aio_unlink +(playerdir $login) . "/$login.pl";
		1507
		1508	my $f = new_from_file cf::object::thawer path $login
995	or return;	1509	or return;
		1510
		1511	my $pl = cf::player::load_pl $f
		1512	or return;
		1513
		1514	local $cf::PLAYER_LOADING{$login} = $pl;
		1515	$f->resolve_delayed_derefs;
996	$cf::PLAYER{$login} = $pl	1516	$cf::PLAYER{$login} = $pl
997	}	1517	}
998	}	1518	}
999	}	1519	}
1000		1520
…		…
1009	return if $pl->{deny_save};	1529	return if $pl->{deny_save};
1010		1530
1011	aio_mkdir playerdir $pl, 0770;	1531	aio_mkdir playerdir $pl, 0770;
1012	$pl->{last_save} = $cf::RUNTIME;	1532	$pl->{last_save} = $cf::RUNTIME;
1013		1533
		1534	cf::get_slot 0.01;
		1535
1014	$pl->save_pl ($path);	1536	$pl->save_pl ($path);
1015	Coro::cede;	1537	cf::cede_to_tick;
1016	}	1538	}
1017		1539
1018	sub new($) {	1540	sub new($) {
1019	my ($login) = @_;	1541	my ($login) = @_;
1020		1542
…		…
1026	$cf::PLAYER{$login} = $self;	1548	$cf::PLAYER{$login} = $self;
1027		1549
1028	$self	1550	$self
1029	}	1551	}
1030		1552
		1553	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1554
		1555	=cut
		1556
		1557	sub send_msg {
		1558	my $ns = shift->ns
		1559	or return;
		1560	$ns->send_msg (@_);
		1561	}
		1562
1031	=item $pl->quit_character	1563	=item $pl->quit_character
1032		1564
1033	Nukes the player without looking back. If logged in, the connection will	1565	Nukes the player without looking back. If logged in, the connection will
1034	be destroyed. May block for a long time.	1566	be destroyed. May block for a long time.
1035		1567
1036	=cut	1568	=cut
1037		1569
1038	sub quit_character {	1570	sub quit_character {
1039	my ($pl) = @_;	1571	my ($pl) = @_;
1040		1572
		1573	my $name = $pl->ob->name;
		1574
1041	$pl->{deny_save} = 1;	1575	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1576	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1043		1577
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1578	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1045	$pl->deactivate;	1579	$pl->deactivate;
		1580	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1581	$pl->ob->check_score;
1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1582	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1047	$pl->ns->destroy if $pl->ns;	1583	$pl->ns->destroy if $pl->ns;
1048		1584
1049	my $path = playerdir $pl;	1585	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1586	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1587	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1588	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1589	$pl->destroy;
		1590
		1591	my $prefix = qr<^~\Q$name\E/>;
		1592
		1593	# nuke player maps
		1594	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1595
1054	IO::AIO::aio_rmtree $temp;	1596	IO::AIO::aio_rmtree $temp;
		1597	}
		1598
		1599	=item $pl->kick
		1600
		1601	Kicks a player out of the game. This destroys the connection.
		1602
		1603	=cut
		1604
		1605	sub kick {
		1606	my ($pl, $kicker) = @_;
		1607
		1608	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1609	$pl->killer ("kicked");
		1610	$pl->ns->destroy;
1055	}	1611	}
1056		1612
1057	=item cf::player::list_logins	1613	=item cf::player::list_logins
1058		1614
1059	Returns am arrayref of all valid playernames in the system, can take a	1615	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1616	while and may block, so not sync_job-capable, ever.
1061		1617
1062	=cut	1618	=cut
1063		1619
1064	sub list_logins {	1620	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1621	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1622	or return [];
1067		1623
1068	my @logins;	1624	my @logins;
1069		1625
1070	for my $login (@$dirs) {	1626	for my $login (@$dirs) {
		1627	my $path = path $login;
		1628
		1629	# a .pst is a dead give-away for a valid player
		1630	# if no pst file found, open and chekc for blocked users
		1631	if (aio_stat "$path.pst") {
1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1632	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1072	aio_read $fh, 0, 512, my $buf, 0 or next;	1633	aio_read $fh, 0, 512, my $buf, 0 or next;
1073	$buf !~ /^password -------------$/m or next; # official not-valid tag	1634	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1635	}
1074		1636
1075	utf8::decode $login;	1637	utf8::decode $login;
1076	push @logins, $login;	1638	push @logins, $login;
1077	}	1639	}
1078		1640
…		…
1105	}	1667	}
1106		1668
1107	\@paths	1669	\@paths
1108	}	1670	}
1109		1671
		1672	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1673
		1674	Expand deliantra pod fragments into protocol xml.
		1675
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1676	=item $player->ext_reply ($msgid, @msg)
1111		1677
1112	Sends an ext reply to the player.	1678	Sends an ext reply to the player.
1113		1679
1114	=cut	1680	=cut
1115		1681
1116	sub ext_reply($$$%) {	1682	sub ext_reply($$@) {
1117	my ($self, $id, %msg) = @_;	1683	my ($self, $id, @msg) = @_;
1118		1684
1119	$msg{msgid} = $id;	1685	$self->ns->ext_reply ($id, @msg)
1120
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1686	}
1123		1687
1124	package cf;	1688	=item $player->ext_msg ($type, @msg)
		1689
		1690	Sends an ext event to the client.
		1691
		1692	=cut
		1693
		1694	sub ext_msg($$@) {
		1695	my ($self, $type, @msg) = @_;
		1696
		1697	$self->ns->ext_msg ($type, @msg);
		1698	}
		1699
		1700	=head3 cf::region
		1701
		1702	=over 4
		1703
		1704	=cut
		1705
		1706	package cf::region;
		1707
		1708	=item cf::region::find_by_path $path
		1709
		1710	Tries to decuce the likely region for a map knowing only its path.
		1711
		1712	=cut
		1713
		1714	sub find_by_path($) {
		1715	my ($path) = @_;
		1716
		1717	my ($match, $specificity);
		1718
		1719	for my $region (list) {
		1720	if ($region->{match} && $path =~ $region->{match}) {
		1721	($match, $specificity) = ($region, $region->specificity)
		1722	if $region->specificity > $specificity;
		1723	}
		1724	}
		1725
		1726	$match
		1727	}
1125		1728
1126	=back	1729	=back
1127
1128		1730
1129	=head3 cf::map	1731	=head3 cf::map
1130		1732
1131	=over 4	1733	=over 4
1132		1734
…		…
1144	our $MAX_RESET = 3600;	1746	our $MAX_RESET = 3600;
1145	our $DEFAULT_RESET = 3000;	1747	our $DEFAULT_RESET = 3000;
1146		1748
1147	sub generate_random_map {	1749	sub generate_random_map {
1148	my ($self, $rmp) = @_;	1750	my ($self, $rmp) = @_;
		1751
		1752	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1753
1149	# mit "rum" bekleckern, nicht	1754	# mit "rum" bekleckern, nicht
1150	$self->_create_random_map (	1755	$self->_create_random_map (
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1756	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1757	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1758	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1187	my ($self, $merge) = @_;	1792	my ($self, $merge) = @_;
1188		1793
1189	# we have to keep some variables in memory intact	1794	# we have to keep some variables in memory intact
1190	local $self->{path};	1795	local $self->{path};
1191	local $self->{load_path};	1796	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1797
1195	$self->SUPER::thawer_merge ($merge);	1798	$self->SUPER::thawer_merge ($merge);
1196	}	1799	}
1197		1800
1198	sub normalise {	1801	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1848	$self->init; # pass $1 etc.
1246	return $self;	1849	return $self;
1247	}	1850	}
1248	}	1851	}
1249		1852
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1853	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1854	()
1252	}	1855	}
1253		1856
1254	sub init {	1857	sub init {
1255	my ($self) = @_;	1858	my ($self) = @_;
…		…
1270		1873
1271	# the original (read-only) location	1874	# the original (read-only) location
1272	sub load_path {	1875	sub load_path {
1273	my ($self) = @_;	1876	my ($self) = @_;
1274		1877
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1878	"$MAPDIR/$self->{path}.map"
1276	}	1879	}
1277		1880
1278	# the temporary/swap location	1881	# the temporary/swap location
1279	sub save_path {	1882	sub save_path {
1280	my ($self) = @_;	1883	my ($self) = @_;
1281		1884
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1885	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1886	"$TMPDIR/$path.map"
1284	}	1887	}
1285		1888
1286	# the unique path, undef == no special unique path	1889	# the unique path, undef == no special unique path
1287	sub uniq_path {	1890	sub uniq_path {
1288	my ($self) = @_;	1891	my ($self) = @_;
1289		1892
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1894	"$UNIQUEDIR/$path"
1292	}	1895	}
1293		1896
1294	# and all this just because we cannot iterate over	1897	sub decay_objects {
1295	# all maps in C++...
1296	sub change_all_map_light {
1297	my ($change) = @_;	1898	my ($self) = @_;
1298		1899
1299	$_->change_map_light ($change)	1900	return if $self->{deny_reset};
1300	for grep $_->outdoor, values %cf::MAP;	1901
		1902	$self->do_decay_objects;
1301	}	1903	}
1302		1904
1303	sub unlink_save {	1905	sub unlink_save {
1304	my ($self) = @_;	1906	my ($self) = @_;
1305		1907
1306	utf8::encode (my $save = $self->save_path);	1908	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1909	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1911	}
1315		1912
1316	sub load_header_from($) {	1913	sub load_header_from($) {
1317	my ($self, $path) = @_;	1914	my ($self, $path) = @_;
1318		1915
1319	utf8::encode $path;	1916	utf8::encode $path;
1320	#aio_open $path, O_RDONLY, 0	1917	my $f = new_from_file cf::object::thawer $path
1321	# or return;
1322
1323	$self->_load_header ($path)
1324	or return;	1918	or return;
		1919
		1920	$self->_load_header ($f)
		1921	or return;
		1922
		1923	local $MAP_LOADING{$self->{path}} = $self;
		1924	$f->resolve_delayed_derefs;
1325		1925
1326	$self->{load_path} = $path;	1926	$self->{load_path} = $path;
1327		1927
1328	1	1928	1
1329	}	1929	}
…		…
1368	$self->load_header_orig	1968	$self->load_header_orig
1369	or return;	1969	or return;
1370	$self->prepare_orig;	1970	$self->prepare_orig;
1371	}	1971	}
1372		1972
		1973	$self->{deny_reset} = 1
		1974	if $self->no_reset;
		1975
		1976	$self->default_region (cf::region::find_by_path $self->{path})
		1977	unless $self->default_region;
		1978
1373	1	1979	1
1374	}	1980	}
1375		1981
1376	sub find;	1982	sub find;
1377	sub find {	1983	sub find {
1378	my ($path, $origin) = @_;	1984	my ($path, $origin) = @_;
1379		1985
1380	$path = normalise $path, $origin && $origin->path;	1986	$path = normalise $path, $origin && $origin->path;
1381		1987
		1988	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1382	cf::lock_wait "map_find:$path";	1989	my $guard2 = cf::lock_acquire "map_find:$path";
1383		1990
1384	$cf::MAP{$path} || do {	1991	$cf::MAP{$path} || do {
1385	my $guard = cf::lock_acquire "map_find:$path";
1386	my $map = new_from_path cf::map $path	1992	my $map = new_from_path cf::map $path
1387	or return;	1993	or return;
1388		1994
1389	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1390		1996
1391	$map->load_header	1997	$map->load_header
1392	or return;	1998	or return;
1393		1999
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	2001	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard2;
		2004	undef $guard1;
1397	$map->reset;	2005	$map->reset;
1398	undef $guard;
1399	return find $path;	2006	return find $path;
1400	}	2007	}
1401		2008
1402	$cf::MAP{$path} = $map	2009	$cf::MAP{$path} = $map
1403	}	2010	}
…		…
1410	my ($self) = @_;	2017	my ($self) = @_;
1411		2018
1412	local $self->{deny_reset} = 1; # loading can take a long time	2019	local $self->{deny_reset} = 1; # loading can take a long time
1413		2020
1414	my $path = $self->{path};	2021	my $path = $self->{path};
		2022
		2023	{
1415	my $guard = cf::lock_acquire "map_load:$path";	2024	my $guard = cf::lock_acquire "map_data:$path";
1416		2025
		2026	return unless $self->valid;
1417	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1418		2028
1419	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1420		2030
1421	$self->alloc;	2031	$self->alloc;
1422		2032
1423	$self->pre_load;	2033	$self->pre_load;
		2034	cf::cede_to_tick;
1424		2035
1425	$self->_load_objects ($self->{load_path}, 1)	2036	my $f = new_from_file cf::object::thawer $self->{load_path};
		2037	$f->skip_block;
		2038	$self->_load_objects ($f)
1426	or return;	2039	or return;
1427		2040
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->post_load_original
1429	if delete $self->{load_original};	2042	if delete $self->{load_original};
1430		2043
1431	if (my $uniq = $self->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;	2045	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1434	$self->clear_unique_items;	2048	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1436	}	2052	}
1437	}	2053	}
1438		2054
1439	Coro::cede;	2055	$f->resolve_delayed_derefs;
1440		2056
		2057	cf::cede_to_tick;
1441	# now do the right thing for maps	2058	# now do the right thing for maps
1442	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;
1449	$self->set_darkness_map;
1450	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	2061	unless $self->difficulty;
1452	Coro::cede;	2062	cf::cede_to_tick;
		2063
		2064	unless ($self->{deny_activate}) {
		2065	$self->decay_objects;
		2066	$self->fix_auto_apply;
		2067	$self->update_buttons;
		2068	cf::cede_to_tick;
1453	$self->activate;	2069	$self->activate;
		2070	}
		2071
		2072	$self->{last_save} = $cf::RUNTIME;
		2073	$self->last_access ($cf::RUNTIME);
		2074
		2075	$self->in_memory (cf::MAP_ACTIVE);
1454	}	2076	}
1455		2077
1456	$self->post_load;	2078	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	2079	}
1460		2080
1461	sub customise_for {	2081	sub customise_for {
1462	my ($self, $ob) = @_;	2082	my ($self, $ob) = @_;
1463		2083
1464	return find "~" . $ob->name . "/" . $self->{path}	2084	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	2085	if $self->per_player;
1466		2086
		2087	# return find "?party/" . $ob->name . "/" . $self->{path}
		2088	# if $self->per_party;
		2089
1467	$self	2090	$self
1468	}	2091	}
1469		2092
1470	# find and load all maps in the 3x3 area around a map	2093	# find and load all maps in the 3x3 area around a map
1471	sub load_diag {	2094	sub load_neighbours {
1472	my ($map) = @_;	2095	my ($map) = @_;
1473		2096
1474	my @diag; # diagonal neighbours	2097	my @neigh; # diagonal neighbours
1475		2098
1476	for (0 .. 3) {	2099	for (0 .. 3) {
1477	my $neigh = $map->tile_path ($_)	2100	my $neigh = $map->tile_path ($_)
1478	or next;	2101	or next;
1479	$neigh = find $neigh, $map	2102	$neigh = find $neigh, $map
1480	or next;	2103	or next;
1481	$neigh->load;	2104	$neigh->load;
1482		2105
		2106	push @neigh,
1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2107	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2108	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1485	}	2109	}
1486		2110
1487	for (@diag) {	2111	for (grep defined $_->[0], @neigh) {
		2112	my ($path, $origin) = @$_;
1488	my $neigh = find @$_	2113	my $neigh = find $path, $origin
1489	or next;	2114	or next;
1490	$neigh->load;	2115	$neigh->load;
1491	}	2116	}
1492	}	2117	}
1493		2118
…		…
1498	}	2123	}
1499		2124
1500	sub do_load_sync {	2125	sub do_load_sync {
1501	my ($map) = @_;	2126	my ($map) = @_;
1502		2127
		2128	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2129	if $Coro::current == $Coro::main;
		2130
1503	cf::sync_job { $map->load };	2131	cf::sync_job { $map->load };
1504	}	2132	}
1505		2133
1506	our %MAP_PREFETCH;	2134	our %MAP_PREFETCH;
1507	our $MAP_PREFETCHER = undef;	2135	our $MAP_PREFETCHER = undef;
1508		2136
1509	sub find_async {	2137	sub find_async {
1510	my ($path, $origin) = @_;	2138	my ($path, $origin, $load) = @_;
1511		2139
1512	$path = normalise $path, $origin && $origin->{path};	2140	$path = normalise $path, $origin && $origin->{path};
1513		2141
1514	if (my $map = $cf::MAP{$path}) {	2142	if (my $map = $cf::MAP{$path}) {
1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2143	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1516	}	2144	}
1517		2145
1518	undef $MAP_PREFETCH{$path};	2146	$MAP_PREFETCH{$path} |= $load;
		2147
1519	$MAP_PREFETCHER ||= cf::async {	2148	$MAP_PREFETCHER ||= cf::async {
		2149	$Coro::current->{desc} = "map prefetcher";
		2150
1520	while (%MAP_PREFETCH) {	2151	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	2152	while (my ($k, $v) = each %MAP_PREFETCH) {
1522	my $map = find $path	2153	if (my $map = find $k) {
1523	or next;
1524	$map->load;	2154	$map->load if $v;
		2155	}
1525		2156
1526	delete $MAP_PREFETCH{$path};	2157	delete $MAP_PREFETCH{$k};
1527	}	2158	}
1528	}	2159	}
1529	undef $MAP_PREFETCHER;	2160	undef $MAP_PREFETCHER;
1530	};	2161	};
1531	$MAP_PREFETCHER->prio (6);	2162	$MAP_PREFETCHER->prio (6);
…		…
1534	}	2165	}
1535		2166
1536	sub save {	2167	sub save {
1537	my ($self) = @_;	2168	my ($self) = @_;
1538		2169
1539	my $lock = cf::lock_acquire "map_data:" . $self->path;	2170	my $lock = cf::lock_acquire "map_data:$self->{path}";
1540		2171
1541	$self->{last_save} = $cf::RUNTIME;	2172	$self->{last_save} = $cf::RUNTIME;
1542		2173
1543	return unless $self->dirty;	2174	return unless $self->dirty;
1544		2175
…		…
1550	return if $self->{deny_save};	2181	return if $self->{deny_save};
1551		2182
1552	local $self->{last_access} = $self->last_access;#d#	2183	local $self->{last_access} = $self->last_access;#d#
1553		2184
1554	cf::async {	2185	cf::async {
		2186	$Coro::current->{desc} = "map player save";
1555	$_->contr->save for $self->players;	2187	$_->contr->save for $self->players;
1556	};	2188	};
		2189
		2190	cf::get_slot 0.02;
1557		2191
1558	if ($uniq) {	2192	if ($uniq) {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1561	} else {	2195	} else {
…		…
1567	my ($self) = @_;	2201	my ($self) = @_;
1568		2202
1569	# save first because save cedes	2203	# save first because save cedes
1570	$self->save;	2204	$self->save;
1571		2205
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2207
1574	return if $self->players;	2208	return if $self->players;
1575	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_ACTIVE;
1576	return if $self->{deny_save};	2210	return if $self->{deny_save};
1577		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1578	$self->clear;	2216	$self->clear;
1579	$self->in_memory (cf::MAP_SWAPPED);
1580	}	2217	}
1581		2218
1582	sub reset_at {	2219	sub reset_at {
1583	my ($self) = @_;	2220	my ($self) = @_;
1584		2221
1585	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1588		2224
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2227
…		…
1602	my ($self) = @_;	2238	my ($self) = @_;
1603		2239
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2241
1606	return if $self->players;	2242	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2243
1609	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path, "\n";
		2245
		2246	$self->in_memory (cf::MAP_SWAPPED);
		2247
		2248	# need to save uniques path
		2249	unless ($self->{deny_save}) {
		2250	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2251
		2252	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2253	if $uniq;
		2254	}
1610		2255
1611	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1612		2257
1613	$self->in_memory (cf::MAP_SWAPPED);	2258	$self->deactivate;
		2259	$_->clear_links_to ($self) for values %cf::MAP;
1614	$self->clear;	2260	$self->clear;
1615
1616	$_->clear_links_to ($self) for values %cf::MAP;
1617		2261
1618	$self->unlink_save;	2262	$self->unlink_save;
1619	$self->destroy;	2263	$self->destroy;
1620	}	2264	}
1621		2265
1622	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1623		2267
1624	sub nuke {	2268	sub nuke {
1625	my ($self) = @_;	2269	my ($self) = @_;
1626		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
1627	delete $cf::MAP{$self->path};	2274	delete $cf::MAP{$self->path};
1628		2275
1629	$self->unlink_save;	2276	$self->unlink_save;
1630		2277
1631	bless $self, "cf::map";	2278	bless $self, "cf::map";
1632	delete $self->{deny_reset};	2279	delete $self->{deny_reset};
1633	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1634	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1636		2283
1637	$cf::MAP{$self->path} = $self;	2284	$cf::MAP{$self->path} = $self;
		2285	}
1638		2286
1639	$self->reset; # polite request, might not happen	2287	$self->reset; # polite request, might not happen
		2288	}
		2289
		2290	=item $maps = cf::map::tmp_maps
		2291
		2292	Returns an arrayref with all map paths of currently instantiated and saved
		2293	maps. May block.
		2294
		2295	=cut
		2296
		2297	sub tmp_maps() {
		2298	[
		2299	map {
		2300	utf8::decode $_;
		2301	/\.map$/
		2302	? normalise $_
		2303	: ()
		2304	} @{ aio_readdir $TMPDIR or [] }
		2305	]
		2306	}
		2307
		2308	=item $maps = cf::map::random_maps
		2309
		2310	Returns an arrayref with all map paths of currently instantiated and saved
		2311	random maps. May block.
		2312
		2313	=cut
		2314
		2315	sub random_maps() {
		2316	[
		2317	map {
		2318	utf8::decode $_;
		2319	/\.map$/
		2320	? normalise "?random/$_"
		2321	: ()
		2322	} @{ aio_readdir $RANDOMDIR or [] }
		2323	]
1640	}	2324	}
1641		2325
1642	=item cf::map::unique_maps	2326	=item cf::map::unique_maps
1643		2327
1644	Returns an arrayref of paths of all shared maps that have	2328	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2329	instantiated unique items. May block.
1646		2330
1647	=cut	2331	=cut
1648		2332
1649	sub unique_maps() {	2333	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2334	[
1651	or return;	2335	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2336	utf8::decode $_;
1657	next if /\.pst$/;	2337	s/\.map$//; # TODO future compatibility hack
1658	next unless /^$PATH_SEP/o;	2338	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1659		2339	? ()
1660	push @paths, cf::map::normalise $_;	2340	: normalise $_
		2341	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2342	]
1662
1663	\@paths
1664	}	2343	}
1665
1666	package cf;
1667		2344
1668	=back	2345	=back
1669		2346
1670	=head3 cf::object	2347	=head3 cf::object
1671		2348
…		…
1675		2352
1676	=over 4	2353	=over 4
1677		2354
1678	=item $ob->inv_recursive	2355	=item $ob->inv_recursive
1679		2356
1680	Returns the inventory of the object _and_ their inventories, recursively.	2357	Returns the inventory of the object I<and> their inventories, recursively,
		2358	but I<not> the object itself.
1681		2359
1682	=cut	2360	=cut
1683		2361
1684	sub inv_recursive_;	2362	sub inv_recursive_;
1685	sub inv_recursive_ {	2363	sub inv_recursive_ {
…		…
1688		2366
1689	sub inv_recursive {	2367	sub inv_recursive {
1690	inv_recursive_ inv $_[0]	2368	inv_recursive_ inv $_[0]
1691	}	2369	}
1692		2370
		2371	=item $ref = $ob->ref
		2372
		2373	Creates and returns a persistent reference to an object that can be stored as a string.
		2374
		2375	=item $ob = cf::object::deref ($refstring)
		2376
		2377	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2378	even if the object actually exists. May block.
		2379
		2380	=cut
		2381
		2382	sub deref {
		2383	my ($ref) = @_;
		2384
		2385	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2386	my ($uuid, $name) = ($1, $2);
		2387	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2388	or return;
		2389	$pl->ob->uuid eq $uuid
		2390	or return;
		2391
		2392	$pl->ob
		2393	} else {
		2394	warn "$ref: cannot resolve object reference\n";
		2395	undef
		2396	}
		2397	}
		2398
1693	package cf;	2399	package cf;
1694		2400
1695	=back	2401	=back
1696		2402
1697	=head3 cf::object::player	2403	=head3 cf::object::player
…		…
1703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2409	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1704	can be C<undef>. Does the right thing when the player is currently in a	2410	can be C<undef>. Does the right thing when the player is currently in a
1705	dialogue with the given NPC character.	2411	dialogue with the given NPC character.
1706		2412
1707	=cut	2413	=cut
		2414
		2415	our $SAY_CHANNEL = {
		2416	id => "say",
		2417	title => "Map",
		2418	reply => "say ",
		2419	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2420	};
		2421
		2422	our $CHAT_CHANNEL = {
		2423	id => "chat",
		2424	title => "Chat",
		2425	reply => "chat ",
		2426	tooltip => "Player chat and shouts, global to the server.",
		2427	};
1708		2428
1709	# rough implementation of a future "reply" method that works	2429	# rough implementation of a future "reply" method that works
1710	# with dialog boxes.	2430	# with dialog boxes.
1711	#TODO: the first argument must go, split into a $npc->reply_to ( method	2431	#TODO: the first argument must go, split into a $npc->reply_to ( method
1712	sub cf::object::player::reply($$$;$) {	2432	sub cf::object::player::reply($$$;$) {
…		…
1714		2434
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2436
1717	if ($self->{record_replies}) {	2437	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2439
1719	} else {	2440	} else {
		2441	my $pl = $self->contr;
		2442
		2443	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2444	my $dialog = $pl->{npc_dialog};
		2445	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2446
		2447	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2448	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2449	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2450	}
1722	}	2451	}
		2452	}
		2453
		2454	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2455
		2456	=cut
		2457
		2458	sub cf::object::send_msg {
		2459	my $pl = shift->contr
		2460	or return;
		2461	$pl->send_msg (@_);
1723	}	2462	}
1724		2463
1725	=item $player_object->may ("access")	2464	=item $player_object->may ("access")
1726		2465
1727	Returns wether the given player is authorized to access resource "access"	2466	Returns wether the given player is authorized to access resource "access"
…		…
1740		2479
1741	=item $player_object->enter_link	2480	=item $player_object->enter_link
1742		2481
1743	Freezes the player and moves him/her to a special map (C<{link}>).	2482	Freezes the player and moves him/her to a special map (C<{link}>).
1744		2483
1745	The player should be reasonably safe there for short amounts of time. You	2484	The player should be reasonably safe there for short amounts of time (e.g.
1746	I<MUST> call C<leave_link> as soon as possible, though.	2485	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2486	though, as the palyer cannot control the character while it is on the link
		2487	map.
1747		2488
1748	Will never block.	2489	Will never block.
1749		2490
1750	=item $player_object->leave_link ($map, $x, $y)	2491	=item $player_object->leave_link ($map, $x, $y)
1751		2492
…		…
1774	$self->deactivate_recursive;	2515	$self->deactivate_recursive;
1775		2516
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2517	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2518
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2520	if $self->map && $self->map->{path} ne "{link}";
1780		2521
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2522	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2523	}
1783		2524
1784	sub cf::object::player::leave_link {	2525	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2526	my ($self, $map, $x, $y) = @_;
		2527
		2528	return unless $self->contr->active;
1786		2529
1787	my $link_pos = delete $self->{_link_pos};	2530	my $link_pos = delete $self->{_link_pos};
1788		2531
1789	unless ($map) {	2532	unless ($map) {
1790	# restore original map position	2533	# restore original map position
…		…
1804	# use -1 or undef as default coordinates, not 0, 0	2547	# use -1 or undef as default coordinates, not 0, 0
1805	($x, $y) = ($map->enter_x, $map->enter_y)	2548	($x, $y) = ($map->enter_x, $map->enter_y)
1806	if $x <=0 && $y <= 0;	2549	if $x <=0 && $y <= 0;
1807		2550
1808	$map->load;	2551	$map->load;
1809	$map->load_diag;	2552	$map->load_neighbours;
1810		2553
1811	return unless $self->contr->active;	2554	return unless $self->contr->active;
		2555
		2556	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2557	$self->enter_map ($map, $x, $y);
		2558
		2559	# only activate afterwards, to support waiting in hooks
1812	$self->activate_recursive;	2560	$self->activate_recursive;
1813	$self->enter_map ($map, $x, $y);
1814	}	2561	}
1815		2562
1816	cf::player->attach (	2563	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2564
1820	# abort map switching before logout	2565	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2566	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2567	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2568	the new (success) or old (failed) map position. In either case, $done will
1824	};	2569	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2570
1830	# try to abort aborted map switching on player login :)	2571	Note that $check will be called with a potentially non-loaded map, so if
1831	# should happen only on crashes	2572	it needs a loaded map it has to call C<< ->load >>.
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847		2573
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2574	=cut
		2575
		2576	our $GOTOGEN;
1851		2577
1852	sub cf::object::player::goto {	2578	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2579	my ($self, $path, $x, $y, $check, $done) = @_;
		2580
		2581	# do generation counting so two concurrent goto's will be executed in-order
		2582	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2583
1855	$self->enter_link;	2584	$self->enter_link;
1856		2585
1857	(async {	2586	(async {
		2587	$Coro::current->{desc} = "player::goto $path $x $y";
		2588
		2589	# *tag paths override both path and x|y
		2590	if ($path =~ /^\*(.*)$/) {
		2591	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2592	my $ob = $obs[rand @obs];
		2593
		2594	# see if we actually can go there
		2595	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2596	$ob = $obs[rand @obs];
		2597	} else {
		2598	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
		2600	# else put us there anyways for now #d#
		2601
		2602	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2603	} else {
		2604	($path, $x, $y) = (undef, undef, undef);
		2605	}
		2606	}
		2607
1858	my $map = eval {	2608	my $map = eval {
1859	my $map = cf::map::find $path;	2609	my $map = defined $path ? cf::map::find $path : undef;
		2610
		2611	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2612	$map = $map->customise_for ($self);
		2613	$map = $check->($map) if $check && $map;
		2614	} else {
		2615	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2616	}
		2617
1861	$map	2618	$map
		2619	};
		2620
		2621	if ($@) {
		2622	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2623	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2624	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2625
		2626	if ($gen == $self->{_goto_generation}) {
		2627	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2628	$self->leave_link ($map, $x, $y);
		2629	}
		2630
		2631	$done->() if $done;
1866	})->prio (1);	2632	})->prio (1);
1867	}	2633	}
1868		2634
1869	=item $player_object->enter_exit ($exit_object)	2635	=item $player_object->enter_exit ($exit_object)
1870		2636
…		…
1890	}	2656	}
1891		2657
1892	sub prepare_random_map {	2658	sub prepare_random_map {
1893	my ($exit) = @_;	2659	my ($exit) = @_;
1894		2660
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2661	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2662	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2663	# that depends on the exit object
1900		2664
1901	my $rmp = parse_random_map_params $exit->msg;	2665	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	2667	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	2668	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	2669	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	2670	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	2671	$rmp->{origin_y} = $exit->y;
		2672
		2673	$exit->map->touch;
1908	}	2674	}
1909		2675
1910	$rmp->{random_seed} ||= $exit->random_seed;	2676	$rmp->{random_seed} ||= $exit->random_seed;
1911		2677
1912	my $data = cf::to_json $rmp;	2678	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	2679	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2680	my $meta = "$RANDOMDIR/$md5.meta";
1915		2681
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2682	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2683	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2684	undef $fh;
1919	aio_rename "$meta~", $meta;	2685	aio_rename "$meta~", $meta;
1920		2686
		2687	my $slaying = "?random/$md5";
		2688
		2689	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	2690	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	2691	$exit->msg (undef);
		2692	}
1923	}	2693	}
1924	}	2694	}
1925		2695
1926	sub cf::object::player::enter_exit {	2696	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	2697	my ($self, $exit) = @_;
1928		2698
1929	return unless $self->type == cf::PLAYER;	2699	return unless $self->type == cf::PLAYER;
1930		2700
1931	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
1933	cf::sync_job { prepare_random_map $exit };
1934	}
1935
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;
1939
1940	$self->enter_link;	2701	$self->enter_link;
1941		2702
1942	(async {	2703	(async {
1943	$self->deactivate_recursive; # just to be sure	2704	$Coro::current->{desc} = "enter_exit";
		2705
1944	unless (eval {	2706	unless (eval {
		2707	$self->deactivate_recursive; # just to be sure
		2708
		2709	# random map handling
		2710	{
		2711	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2712
		2713	prepare_random_map $exit
		2714	if $exit->slaying eq "/!";
		2715	}
		2716
		2717	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2718	my $x = $exit->stats->hp;
		2719	my $y = $exit->stats->sp;
		2720
1945	$self->goto ($slaying, $hp, $sp);	2721	$self->goto ($map, $x, $y);
1946		2722
		2723	# if exit is damned, update players death & WoR home-position
		2724	$self->contr->savebed ($map, $x, $y)
		2725	if $exit->flag (cf::FLAG_DAMNED);
		2726
1947	1;	2727	1
1948	}) {	2728	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2729	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "I'll try to bring you back to the map you were before. "	2730	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2731	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2732	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2733
1954	warn "ERROR in enter_exit: $@";	2734	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2735	$self->leave_link;
1956	}	2736	}
1957	})->prio (1);	2737	})->prio (1);
…		…
1970		2750
1971	sub cf::client::send_drawinfo {	2751	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2752	my ($self, $text, $flags) = @_;
1973		2753
1974	utf8::encode $text;	2754	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2755	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2756	}
1977		2757
		2758	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2759
		2760	Send a drawinfo or msg packet to the client, formatting the msg for the
		2761	client if neccessary. C<$type> should be a string identifying the type of
		2762	the message, with C<log> being the default. If C<$color> is negative, suppress
		2763	the message unless the client supports the msg packet.
		2764
		2765	=cut
		2766
		2767	# non-persistent channels (usually the info channel)
		2768	our %CHANNEL = (
		2769	"c/identify" => {
		2770	id => "infobox",
		2771	title => "Identify",
		2772	reply => undef,
		2773	tooltip => "Items recently identified",
		2774	},
		2775	"c/examine" => {
		2776	id => "infobox",
		2777	title => "Examine",
		2778	reply => undef,
		2779	tooltip => "Signs and other items you examined",
		2780	},
		2781	"c/book" => {
		2782	id => "infobox",
		2783	title => "Book",
		2784	reply => undef,
		2785	tooltip => "The contents of a note or book",
		2786	},
		2787	"c/lookat" => {
		2788	id => "infobox",
		2789	title => "Look",
		2790	reply => undef,
		2791	tooltip => "What you saw there",
		2792	},
		2793	"c/who" => {
		2794	id => "infobox",
		2795	title => "Players",
		2796	reply => undef,
		2797	tooltip => "Shows players who are currently online",
		2798	},
		2799	"c/body" => {
		2800	id => "infobox",
		2801	title => "Body Parts",
		2802	reply => undef,
		2803	tooltip => "Shows which body parts you posess and are available",
		2804	},
		2805	"c/statistics" => {
		2806	id => "infobox",
		2807	title => "Statistics",
		2808	reply => undef,
		2809	tooltip => "Shows your primary statistics",
		2810	},
		2811	"c/skills" => {
		2812	id => "infobox",
		2813	title => "Skills",
		2814	reply => undef,
		2815	tooltip => "Shows your experience per skill and item power",
		2816	},
		2817	"c/shopitems" => {
		2818	id => "infobox",
		2819	title => "Shop Items",
		2820	reply => undef,
		2821	tooltip => "Shows the items currently for sale in this shop",
		2822	},
		2823	"c/resistances" => {
		2824	id => "infobox",
		2825	title => "Resistances",
		2826	reply => undef,
		2827	tooltip => "Shows your resistances",
		2828	},
		2829	"c/pets" => {
		2830	id => "infobox",
		2831	title => "Pets",
		2832	reply => undef,
		2833	tooltip => "Shows information abotu your pets/a specific pet",
		2834	},
		2835	"c/perceiveself" => {
		2836	id => "infobox",
		2837	title => "Perceive Self",
		2838	reply => undef,
		2839	tooltip => "You gained detailed knowledge about yourself",
		2840	},
		2841	"c/uptime" => {
		2842	id => "infobox",
		2843	title => "Uptime",
		2844	reply => undef,
		2845	tooltip => "How long the server has been running since last restart",
		2846	},
		2847	"c/mapinfo" => {
		2848	id => "infobox",
		2849	title => "Map Info",
		2850	reply => undef,
		2851	tooltip => "Information related to the maps",
		2852	},
		2853	"c/party" => {
		2854	id => "party",
		2855	title => "Party",
		2856	reply => "gsay ",
		2857	tooltip => "Messages and chat related to your party",
		2858	},
		2859	"c/death" => {
		2860	id => "death",
		2861	title => "Death",
		2862	reply => undef,
		2863	tooltip => "Reason for and more info about your most recent death",
		2864	},
		2865	"c/say" => $SAY_CHANNEL,
		2866	"c/chat" => $CHAT_CHANNEL,
		2867	);
		2868
		2869	sub cf::client::send_msg {
		2870	my ($self, $channel, $msg, $color, @extra) = @_;
		2871
		2872	$msg = $self->pl->expand_cfpod ($msg)
		2873	unless $color & cf::NDI_VERBATIM;
		2874
		2875	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2876
		2877	# check predefined channels, for the benefit of C
		2878	if ($CHANNEL{$channel}) {
		2879	$channel = $CHANNEL{$channel};
		2880
		2881	$self->ext_msg (channel_info => $channel);
		2882	$channel = $channel->{id};
		2883
		2884	} elsif (ref $channel) {
		2885	# send meta info to client, if not yet sent
		2886	unless (exists $self->{channel}{$channel->{id}}) {
		2887	$self->{channel}{$channel->{id}} = $channel;
		2888	$self->ext_msg (channel_info => $channel);
		2889	}
		2890
		2891	$channel = $channel->{id};
		2892	}
		2893
		2894	return unless @extra || length $msg;
		2895
		2896	# default colour, mask it out
		2897	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2898	if $color & cf::NDI_DEF;
		2899
		2900	my $pkt = "msg "
		2901	. $self->{json_coder}->encode (
		2902	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2903	);
		2904
		2905	# try lzf for large packets
		2906	$pkt = "lzf " . Compress::LZF::compress $pkt
		2907	if 1024 <= length $pkt and $self->{can_lzf};
		2908
		2909	# split very large packets
		2910	if (8192 < length $pkt and $self->{can_lzf}) {
		2911	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2912	$pkt = "frag";
		2913	}
		2914
		2915	$self->send_packet ($pkt);
		2916	}
		2917
		2918	=item $client->ext_msg ($type, @msg)
		2919
		2920	Sends an ext event to the client.
		2921
		2922	=cut
		2923
		2924	sub cf::client::ext_msg($$@) {
		2925	my ($self, $type, @msg) = @_;
		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2929	} elsif ($self->extcmd == 1) { # TODO: remove
		2930	push @msg, msgtype => "event_$type";
		2931	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2932	}
		2933	}
		2934
		2935	=item $client->ext_reply ($msgid, @msg)
		2936
		2937	Sends an ext reply to the client.
		2938
		2939	=cut
		2940
		2941	sub cf::client::ext_reply($$@) {
		2942	my ($self, $id, @msg) = @_;
		2943
		2944	if ($self->extcmd == 2) {
		2945	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2946	} elsif ($self->extcmd == 1) {
		2947	#TODO: version 1, remove
		2948	unshift @msg, msgtype => "reply", msgid => $id;
		2949	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2950	}
		2951	}
1978		2952
1979	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
1980		2954
1981	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		2958
1985	Queries can fail, so check the return code. Or don't, as queries will become	2959	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	2960	become reliable at some point in the future.
1987		2961
1988	=cut	2962	=cut
1989		2963
1990	sub cf::client::query {	2964	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2973	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2975
2002	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
2004	}	2980	}
2005		2981
2006	cf::client->attach (	2982	cf::client->attach (
		2983	on_connect => sub {
		2984	my ($ns) = @_;
		2985
		2986	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2987	},
2007	on_reply => sub {	2988	on_reply => sub {
2008	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
2009		2990
2010	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
2011	# get handled first	2992	# get handled first
…		…
2023	} else {	3004	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	3006	}
2026	}	3007	}
2027	},	3008	},
		3009	on_exticmd => sub {
		3010	my ($ns, $buf) = @_;
		3011
		3012	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3013
		3014	if (ref $msg) {
		3015	my ($type, $reply, @payload) =
		3016	"ARRAY" eq ref $msg
		3017	? @$msg
		3018	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3019
		3020	my @reply;
		3021
		3022	if (my $cb = $EXTICMD{$type}) {
		3023	@reply = $cb->($ns, @payload);
		3024	}
		3025
		3026	$ns->ext_reply ($reply, @reply)
		3027	if $reply;
		3028
		3029	} else {
		3030	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3031	}
		3032
		3033	cf::override;
		3034	},
2028	);	3035	);
2029		3036
2030	=item $client->async (\&cb)	3037	=item $client->async (\&cb)
2031		3038
2032	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
2075		3082
2076	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
2077		3084
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3085	$safe->permit_only (Opcode::opset qw(
		3086	:base_core :base_mem :base_orig :base_math
		3087	grepstart grepwhile mapstart mapwhile
		3088	sort time
		3089	));
2079		3090
2080	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
2081		3092
2082	=pod	3093	=pod
2083		3094
2084	The following fucntions and emthods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
2085		3096
2086	cf::object contr pay_amount pay_player map	3097	cf::object
		3098	contr pay_amount pay_player map x y force_find force_add destroy
		3099	insert remove name archname title slaying race decrease split
		3100	value
		3101
2087	cf::object::player player	3102	cf::object::player
2088	cf::player peaceful	3103	player
2089	cf::map trigger	3104
		3105	cf::player
		3106	peaceful
		3107
		3108	cf::map
		3109	trigger
2090		3110
2091	=cut	3111	=cut
2092		3112
2093	for (	3113	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3114	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3115	insert remove inv nrof name archname title slaying race
		3116	decrease split destroy change_exp value msg lore send_msg)],
2095	["cf::object::player" => qw(player)],	3117	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3118	["cf::player" => qw(peaceful send_msg)],
2097	["cf::map" => qw(trigger)],	3119	["cf::map" => qw(trigger)],
2098	) {	3120	) {
2099	no strict 'refs';	3121	no strict 'refs';
2100	my ($pkg, @funs) = @$_;	3122	my ($pkg, @funs) = @$_;
2101	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2118	my ($code, %vars) = @_;	3140	my ($code, %vars) = @_;
2119		3141
2120	my $qcode = $code;	3142	my $qcode = $code;
2121	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3143	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2122	$qcode =~ s/\n/\\n/g;	3144	$qcode =~ s/\n/\\n/g;
		3145
		3146	%vars = (_dummy => 0) unless %vars;
2123		3147
2124	local $_;	3148	local $_;
2125	local @safe::cf::_safe_eval_args = values %vars;	3149	local @safe::cf::_safe_eval_args = values %vars;
2126		3150
2127	my $eval =	3151	my $eval =
…		…
2170	=back	3194	=back
2171		3195
2172	=cut	3196	=cut
2173		3197
2174	#############################################################################	3198	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	3199	# the server's init and main functions
2284		3200
		3201	sub load_facedata($) {
		3202	my ($path) = @_;
		3203
		3204	# HACK to clear player env face cache, we need some signal framework
		3205	# for this (global event?)
		3206	%ext::player_env::MUSIC_FACE_CACHE = ();
		3207
		3208	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3209
		3210	warn "loading facedata from $path\n";
		3211
		3212	my $facedata;
		3213	0 < aio_load $path, $facedata
		3214	or die "$path: $!";
		3215
		3216	$facedata = Coro::Storable::thaw $facedata;
		3217
		3218	$facedata->{version} == 2
		3219	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3220
		3221	# patch in the exptable
		3222	$facedata->{resource}{"res/exp_table"} = {
		3223	type => FT_RSRC,
		3224	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3225	};
		3226	cf::cede_to_tick;
		3227
		3228	{
		3229	my $faces = $facedata->{faceinfo};
		3230
		3231	while (my ($face, $info) = each %$faces) {
		3232	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3233
		3234	cf::face::set_visibility $idx, $info->{visibility};
		3235	cf::face::set_magicmap $idx, $info->{magicmap};
		3236	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3237	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3238
		3239	cf::cede_to_tick;
		3240	}
		3241
		3242	while (my ($face, $info) = each %$faces) {
		3243	next unless $info->{smooth};
		3244
		3245	my $idx = cf::face::find $face
		3246	or next;
		3247
		3248	if (my $smooth = cf::face::find $info->{smooth}) {
		3249	cf::face::set_smooth $idx, $smooth;
		3250	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3251	} else {
		3252	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3253	}
		3254
		3255	cf::cede_to_tick;
		3256	}
		3257	}
		3258
		3259	{
		3260	my $anims = $facedata->{animinfo};
		3261
		3262	while (my ($anim, $info) = each %$anims) {
		3263	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3264	cf::cede_to_tick;
		3265	}
		3266
		3267	cf::anim::invalidate_all; # d'oh
		3268	}
		3269
		3270	{
		3271	# TODO: for gcfclient pleasure, we should give resources
		3272	# that gcfclient doesn't grok a >10000 face index.
		3273	my $res = $facedata->{resource};
		3274
		3275	while (my ($name, $info) = each %$res) {
		3276	if (defined $info->{type}) {
		3277	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3278	my $data;
		3279
		3280	if ($info->{type} & 1) {
		3281	# prepend meta info
		3282
		3283	my $meta = $enc->encode ({
		3284	name => $name,
		3285	%{ $info->{meta} || {} },
		3286	});
		3287
		3288	$data = pack "(w/a*)*", $meta, $info->{data};
		3289	} else {
		3290	$data = $info->{data};
		3291	}
		3292
		3293	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3294	cf::face::set_type $idx, $info->{type};
		3295	} else {
		3296	$RESOURCE{$name} = $info;
		3297	}
		3298
		3299	cf::cede_to_tick;
		3300	}
		3301	}
		3302
		3303	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3304
		3305	1
		3306	}
		3307
		3308	cf::global->attach (on_resource_update => sub {
		3309	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3310	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3311
		3312	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3313	my $sound = $soundconf->{compat}[$_]
		3314	or next;
		3315
		3316	my $face = cf::face::find "sound/$sound->[1]";
		3317	cf::sound::set $sound->[0] => $face;
		3318	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3319	}
		3320
		3321	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3322	my $face = cf::face::find "sound/$v";
		3323	cf::sound::set $k => $face;
		3324	}
		3325	}
		3326	});
		3327
		3328	register_exticmd fx_want => sub {
		3329	my ($ns, $want) = @_;
		3330
		3331	while (my ($k, $v) = each %$want) {
		3332	$ns->fx_want ($k, $v);
		3333	}
		3334	};
		3335
2285	sub load_resources {	3336	sub load_resource_file($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3337	my $guard = lock_acquire "load_resource_file";
		3338
		3339	my $status = load_resource_file_ $_[0];
		3340	get_slot 0.1, 100;
		3341	cf::arch::commit_load;
		3342
		3343	$status
		3344	}
		3345
		3346	sub reload_regions {
		3347	# HACK to clear player env face cache, we need some signal framework
		3348	# for this (global event?)
		3349	%ext::player_env::MUSIC_FACE_CACHE = ();
		3350
		3351	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	3352	or die "unable to load regions file\n";
2288	}
2289		3353
2290	sub cfg_load {	3354	for (cf::region::list) {
		3355	$_->{match} = qr/$_->{match}/
		3356	if exists $_->{match};
		3357	}
		3358	}
		3359
		3360	sub reload_facedata {
		3361	load_facedata "$DATADIR/facedata"
		3362	or die "unable to load facedata\n";
		3363	}
		3364
		3365	sub reload_archetypes {
		3366	load_resource_file "$DATADIR/archetypes"
		3367	or die "unable to load archetypes\n";
		3368	}
		3369
		3370	sub reload_treasures {
		3371	load_resource_file "$DATADIR/treasures"
		3372	or die "unable to load treasurelists\n";
		3373	}
		3374
		3375	sub reload_resources {
		3376	warn "reloading resource files...\n";
		3377
		3378	reload_facedata;
		3379	reload_archetypes;
		3380	reload_regions;
		3381	reload_treasures;
		3382
		3383	warn "finished reloading resource files\n";
		3384	}
		3385
		3386	sub reload_config {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	3387	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	3388	or return;
2293		3389
2294	local $/;	3390	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	3391	*CFG = YAML::Load <$fh>;
2296		3392
2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3393	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2298		3394
2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3395	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3396	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2306	};	3402	};
2307	warn $@ if $@;	3403	warn $@ if $@;
2308	}	3404	}
2309	}	3405	}
2310		3406
2311	sub init {	3407	sub pidfile() {
2312	load_resources;	3408	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3409	or die "$PIDFILE: $!";
		3410	flock $fh, &Fcntl::LOCK_EX
		3411	or die "$PIDFILE: flock: $!";
		3412	$fh
		3413	}
		3414
		3415	# make sure only one server instance is running at any one time
		3416	sub atomic {
		3417	my $fh = pidfile;
		3418
		3419	my $pid = <$fh>;
		3420	kill 9, $pid if $pid > 0;
		3421
		3422	seek $fh, 0, 0;
		3423	print $fh $$;
		3424	}
		3425
		3426	sub main_loop {
		3427	warn "EV::loop starting\n";
		3428	if (1) {
		3429	EV::loop;
		3430	}
		3431	warn "EV::loop returned\n";
		3432	goto &main_loop unless $REALLY_UNLOOP;
2313	}	3433	}
2314		3434
2315	sub main {	3435	sub main {
		3436	cf::init_globals; # initialise logging
		3437
		3438	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3439	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3440	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3441	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3442
		3443	cf::init_experience;
		3444	cf::init_anim;
		3445	cf::init_attackmess;
		3446	cf::init_dynamic;
		3447
		3448	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3449
2316	# we must not ever block the main coroutine	3450	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	3451	local $Coro::idle = sub {
2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3452	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2319	(async {	3453	(async {
2320	Event::one_event;	3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
2321	})->prio (Coro::PRIO_MAX);	3456	})->prio (Coro::PRIO_MAX);
2322	};	3457	};
2323		3458
2324	cfg_load;	3459	evthread_start IO::AIO::poll_fileno;
2325	db_load;	3460
		3461	cf::sync_job {
		3462	reload_resources;
		3463	reload_config;
		3464	db_init;
		3465
		3466	cf::load_settings;
		3467	cf::load_materials;
		3468	cf::init_uuid;
		3469	cf::init_signals;
		3470	cf::init_commands;
		3471	cf::init_skills;
		3472
		3473	cf::init_beforeplay;
		3474
		3475	atomic;
		3476
2326	load_extensions;	3477	load_extensions;
2327		3478
2328	$TICK_WATCHER->start;	3479	utime time, time, $RUNTIMEFILE;
2329	Event::loop;	3480
		3481	# no (long-running) fork's whatsoever before this point(!)
		3482	use POSIX ();
		3483	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3484
		3485	(pop @POST_INIT)->(0) while @POST_INIT;
		3486	};
		3487
		3488	main_loop;
2330	}	3489	}
2331		3490
2332	#############################################################################	3491	#############################################################################
2333	# initialisation and cleanup	3492	# initialisation and cleanup
2334		3493
2335	# install some emergency cleanup handlers	3494	# install some emergency cleanup handlers
2336	BEGIN {	3495	BEGIN {
		3496	our %SIGWATCHER = ();
2337	for my $signal (qw(INT HUP TERM)) {	3497	for my $signal (qw(INT HUP TERM)) {
2338	Event->signal (	3498	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2339	reentrant => 0,
2340	data => WF_AUTOCANCEL,
2341	signal => $signal,
2342	prio => 0,
2343	cb => sub {
2344	cf::cleanup "SIG$signal";	3499	cf::cleanup "SIG$signal";
2345	},
2346	);	3500	};
		3501	}
		3502	}
		3503
		3504	sub write_runtime_sync {
		3505	# first touch the runtime file to show we are still running:
		3506	# the fsync below can take a very very long time.
		3507
		3508	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3509
		3510	my $guard = cf::lock_acquire "write_runtime";
		3511
		3512	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3513	or return;
		3514
		3515	my $value = $cf::RUNTIME + 90 + 10;
		3516	# 10 is the runtime save interval, for a monotonic clock
		3517	# 60 allows for the watchdog to kill the server.
		3518
		3519	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3520	and return;
		3521
		3522	# always fsync - this file is important
		3523	aio_fsync $fh
		3524	and return;
		3525
		3526	# touch it again to show we are up-to-date
		3527	aio_utime $fh, undef, undef;
		3528
		3529	close $fh
		3530	or return;
		3531
		3532	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3533	and return;
		3534
		3535	warn "runtime file written.\n";
		3536
2347	}	3537	1
		3538	}
		3539
		3540	our $uuid_lock;
		3541	our $uuid_skip;
		3542
		3543	sub write_uuid_sync($) {
		3544	$uuid_skip ||= $_[0];
		3545
		3546	return if $uuid_lock;
		3547	local $uuid_lock = 1;
		3548
		3549	my $uuid = "$LOCALDIR/uuid";
		3550
		3551	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3552	or return;
		3553
		3554	my $value = uuid_seq uuid_cur;
		3555
		3556	unless ($value) {
		3557	warn "cowardly refusing to write zero uuid value!\n";
		3558	return;
		3559	}
		3560
		3561	my $value = uuid_str $value + $uuid_skip;
		3562	$uuid_skip = 0;
		3563
		3564	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3565	and return;
		3566
		3567	# always fsync - this file is important
		3568	aio_fsync $fh
		3569	and return;
		3570
		3571	close $fh
		3572	or return;
		3573
		3574	aio_rename "$uuid~", $uuid
		3575	and return;
		3576
		3577	warn "uuid file written ($value).\n";
		3578
		3579	1
		3580
		3581	}
		3582
		3583	sub write_uuid($$) {
		3584	my ($skip, $sync) = @_;
		3585
		3586	$sync ? write_uuid_sync $skip
		3587	: async { write_uuid_sync $skip };
2348	}	3588	}
2349		3589
2350	sub emergency_save() {	3590	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3591	my $freeze_guard = cf::freeze_mainloop;
2352		3592
2353	warn "enter emergency perl save\n";	3593	warn "emergency_perl_save: enter\n";
2354		3594
2355	cf::sync_job {	3595	cf::sync_job {
		3596	# this is a trade-off: we want to be very quick here, so
		3597	# save all maps without fsync, and later call a global sync
		3598	# (which in turn might be very very slow)
		3599	local $USE_FSYNC = 0;
		3600
2356	# use a peculiar iteration method to avoid tripping on perl	3601	# use a peculiar iteration method to avoid tripping on perl
2357	# refcount bugs in for. also avoids problems with players	3602	# refcount bugs in for. also avoids problems with players
2358	# and maps saved/destroyed asynchronously.	3603	# and maps saved/destroyed asynchronously.
2359	warn "begin emergency player save\n";	3604	warn "emergency_perl_save: begin player save\n";
2360	for my $login (keys %cf::PLAYER) {	3605	for my $login (keys %cf::PLAYER) {
2361	my $pl = $cf::PLAYER{$login} or next;	3606	my $pl = $cf::PLAYER{$login} or next;
2362	$pl->valid or next;	3607	$pl->valid or next;
		3608	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2363	$pl->save;	3609	$pl->save;
2364	}	3610	}
2365	warn "end emergency player save\n";	3611	warn "emergency_perl_save: end player save\n";
2366		3612
2367	warn "begin emergency map save\n";	3613	warn "emergency_perl_save: begin map save\n";
2368	for my $path (keys %cf::MAP) {	3614	for my $path (keys %cf::MAP) {
2369	my $map = $cf::MAP{$path} or next;	3615	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3616	$map->valid or next;
2371	$map->save;	3617	$map->save;
2372	}	3618	}
2373	warn "end emergency map save\n";	3619	warn "emergency_perl_save: end map save\n";
		3620
		3621	warn "emergency_perl_save: begin database checkpoint\n";
		3622	BDB::db_env_txn_checkpoint $DB_ENV;
		3623	warn "emergency_perl_save: end database checkpoint\n";
		3624
		3625	warn "emergency_perl_save: begin write uuid\n";
		3626	write_uuid_sync 1;
		3627	warn "emergency_perl_save: end write uuid\n";
2374	};	3628	};
2375		3629
		3630	warn "emergency_perl_save: starting sync()\n";
		3631	IO::AIO::aio_sync sub {
		3632	warn "emergency_perl_save: finished sync()\n";
		3633	};
		3634
2376	warn "leave emergency perl save\n";	3635	warn "emergency_perl_save: leave\n";
2377	}	3636	}
2378		3637
		3638	sub post_cleanup {
		3639	my ($make_core) = @_;
		3640
		3641	warn Carp::longmess "post_cleanup backtrace"
		3642	if $make_core;
		3643
		3644	my $fh = pidfile;
		3645	unlink $PIDFILE if <$fh> == $$;
		3646	}
		3647
		3648	# a safer delete_package, copied from Symbol
		3649	sub clear_package($) {
		3650	my $pkg = shift;
		3651
		3652	# expand to full symbol table name if needed
		3653	unless ($pkg =~ /^main::.*::$/) {
		3654	$pkg = "main$pkg" if $pkg =~ /^::/;
		3655	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3656	$pkg .= '::' unless $pkg =~ /::$/;
		3657	}
		3658
		3659	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3660	my $stem_symtab = *{$stem}{HASH};
		3661
		3662	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3663	or return;
		3664
		3665	# clear all symbols
		3666	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3667	for my $name (keys %$leaf_symtab) {
		3668	_gv_clear *{"$pkg$name"};
		3669	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3670	}
		3671	warn "cleared package $pkg\n";#d#
		3672	}
		3673
2379	sub reload() {	3674	sub do_reload_perl() {
2380	# can/must only be called in main	3675	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3676	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	3677	warn "can only reload from main coroutine";
2383	return;	3678	return;
2384	}	3679	}
2385		3680
		3681	return if $RELOAD++;
		3682
		3683	my $t1 = EV::time;
		3684
		3685	while ($RELOAD) {
2386	warn "reloading...";	3686	warn "reloading...";
2387		3687
2388	warn "cancelling server ticker";	3688	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3689
		3690	cf::sync_job {
		3691	cf::write_runtime_sync; # external watchdog should not bark
2391	cf::emergency_save;	3692	cf::emergency_save;
		3693	cf::write_runtime_sync; # external watchdog should not bark
2392		3694
2393	eval {	3695	warn "syncing database to disk";
		3696	BDB::db_env_txn_checkpoint $DB_ENV;
		3697
2394	# if anything goes wrong in here, we should simply crash as we already saved	3698	# if anything goes wrong in here, we should simply crash as we already saved
2395		3699
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398
2399	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}
2403
2404	warn "flushing outstanding aio requests";	3700	warn "flushing outstanding aio requests";
2405	for (;;) {	3701	while (IO::AIO::nreqs || BDB::nreqs) {
2406	IO::AIO::flush;	3702	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2407	Coro::cede;
2408	last unless IO::AIO::nreqs;
2409	warn "iterate...";
2410	}
2411
2412	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();
2415
2416	warn "removing commands";
2417	%COMMAND = ();
2418
2419	warn "removing ext commands";
2420	%EXTCMD = ();
2421
2422	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";
2425
2426	if (my $cb = $pkg->can ("unload")) {
2427	eval {
2428	$cb->($pkg);
2429	1
2430	} or warn "$pkg unloaded, but with errors: $@";
2431	}	3703	}
2432		3704
2433	warn "... nuking $pkg";	3705	warn "cancelling all extension coros";
2434	Symbol::delete_package $pkg;	3706	$_->cancel for values %EXT_CORO;
2435	}	3707	%EXT_CORO = ();
2436		3708
2437	warn "unloading all perl modules loaded from $LIBDIR";	3709	warn "removing commands";
2438	while (my ($k, $v) = each %INC) {	3710	%COMMAND = ();
2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2440		3711
		3712	warn "removing ext/exti commands";
		3713	%EXTCMD = ();
		3714	%EXTICMD = ();
		3715
		3716	warn "unloading/nuking all extensions";
		3717	for my $pkg (@EXTS) {
2441	warn "... unloading $k";	3718	warn "... unloading $pkg";
2442	delete $INC{$k};
2443		3719
2444	$k =~ s/\.pm$//;
2445	$k =~ s/\//::/g;
2446
2447	if (my $cb = $k->can ("unload_module")) {	3720	if (my $cb = $pkg->can ("unload")) {
		3721	eval {
2448	$cb->();	3722	$cb->($pkg);
		3723	1
		3724	} or warn "$pkg unloaded, but with errors: $@";
		3725	}
		3726
		3727	warn "... clearing $pkg";
		3728	clear_package $pkg;
2449	}	3729	}
2450		3730
2451	Symbol::delete_package $k;	3731	warn "unloading all perl modules loaded from $LIBDIR";
		3732	while (my ($k, $v) = each %INC) {
		3733	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3734
		3735	warn "... unloading $k";
		3736	delete $INC{$k};
		3737
		3738	$k =~ s/\.pm$//;
		3739	$k =~ s/\//::/g;
		3740
		3741	if (my $cb = $k->can ("unload_module")) {
		3742	$cb->();
		3743	}
		3744
		3745	clear_package $k;
2452	}	3746	}
2453		3747
2454	warn "getting rid of safe::, as good as possible";	3748	warn "getting rid of safe::, as good as possible";
2455	Symbol::delete_package "safe::$_"	3749	clear_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3750	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		3751
2458	warn "unloading cf.pm \"a bit\"";	3752	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3753	delete $INC{"cf.pm"};
		3754	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2460		3755
2461	# don't, removes xs symbols, too,	3756	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3757	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3758	#clear_package __PACKAGE__;
2464		3759
2465	warn "unload completed, starting to reload now";	3760	warn "unload completed, starting to reload now";
2466		3761
2467	warn "reloading cf.pm";	3762	warn "reloading cf.pm";
2468	require cf;	3763	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3764	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2470		3765
2471	warn "loading config and database again";	3766	warn "loading config and database again";
2472	cf::cfg_load;	3767	cf::reload_config;
2473	cf::db_load;
2474		3768
2475	warn "loading extensions";	3769	warn "loading extensions";
2476	cf::load_extensions;	3770	cf::load_extensions;
2477		3771
		3772	if ($REATTACH_ON_RELOAD) {
2478	warn "reattaching attachments to objects/players";	3773	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3774	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3775	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3776	reattach $_ for values %MAP;
		3777	warn "reattaching attachments to players";
		3778	reattach $_ for values %PLAYER;
		3779	}
2482		3780
2483	warn "loading reloadable resources";	3781	warn "running post_init jobs";
2484	load_resources;	3782	(pop @POST_INIT)->(1) while @POST_INIT;
2485		3783
2486	warn "restarting server ticker";	3784	warn "leaving sync_job";
2487		3785
2488	$TICK_WATCHER->start;	3786	1
		3787	} or do {
		3788	warn $@;
		3789	cf::cleanup "error while reloading, exiting.";
		3790	};
		3791
		3792	warn "reloaded";
		3793	--$RELOAD;
		3794	}
		3795
		3796	$t1 = EV::time - $t1;
		3797	warn "reload completed in ${t1}s\n";
		3798	};
		3799
		3800	our $RELOAD_WATCHER; # used only during reload
		3801
		3802	sub reload_perl() {
		3803	# doing reload synchronously and two reloads happen back-to-back,
		3804	# coro crashes during coro_state_free->destroy here.
		3805
		3806	$RELOAD_WATCHER ||= cf::async {
		3807	Coro::AIO::aio_wait cache_extensions;
		3808
		3809	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3810	do_reload_perl;
		3811	undef $RELOAD_WATCHER;
		3812	};
2489	};	3813	};
2490		3814	}
2491	if ($@) {
2492	warn $@;
2493	warn "error while reloading, exiting.";
2494	exit 1;
2495	}
2496
2497	warn "reloaded";
2498	};
2499
2500	our $RELOAD_WATCHER; # used only during reload
2501		3815
2502	register_command "reload" => sub {	3816	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3817	my ($who, $arg) = @_;
2504		3818
2505	if ($who->flag (FLAG_WIZ)) {	3819	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3820	$who->message ("reloading server.");
2507		3821	async {
2508	# doing reload synchronously and two reloads happen back-to-back,	3822	$Coro::current->{desc} = "perl_reload";
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;	3823	reload_perl;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);	3824	};
2520	}	3825	}
2521	};	3826	};
2522		3827
2523	unshift @INC, $LIBDIR;	3828	unshift @INC, $LIBDIR;
2524		3829
2525	my $bug_warning = 0;	3830	my $bug_warning = 0;
2526		3831
2527	$TICK_WATCHER = Event->timer (	3832	our @WAIT_FOR_TICK;
2528	reentrant => 0,	3833	our @WAIT_FOR_TICK_BEGIN;
2529	parked => 1,	3834
2530	prio => 0,	3835	sub wait_for_tick {
2531	at => $NEXT_TICK || $TICK,	3836	return if tick_inhibit || $Coro::current == $Coro::main;
2532	data => WF_AUTOCANCEL,	3837
2533	cb => sub {	3838	my $signal = new Coro::Signal;
		3839	push @WAIT_FOR_TICK, $signal;
		3840	$signal->wait;
		3841	}
		3842
		3843	sub wait_for_tick_begin {
		3844	return if tick_inhibit || $Coro::current == $Coro::main;
		3845
		3846	my $signal = new Coro::Signal;
		3847	push @WAIT_FOR_TICK_BEGIN, $signal;
		3848	$signal->wait;
		3849	}
		3850
		3851	sub tick {
2534	if ($Coro::current != $Coro::main) {	3852	if ($Coro::current != $Coro::main) {
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3854	unless ++$bug_warning > 10;
2537	return;	3855	return;
2538	}	3856	}
2539		3857
2540	$NOW = Event::time;
2541
2542	cf::server_tick; # one server iteration	3858	cf::server_tick; # one server iteration
2543	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;
2545		3859
2546	$WAIT_FOR_TICK->broadcast;	3860	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3861	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3862	Coro::async_pool {
		3863	$Coro::current->{desc} = "runtime saver";
		3864	write_runtime_sync
		3865	or warn "ERROR: unable to write runtime file: $!";
		3866	};
		3867	}
2548		3868
2549	Event::sweep;	3869	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2550	Coro::cede_notself;	3870	$sig->send;
		3871	}
		3872	while (my $sig = shift @WAIT_FOR_TICK) {
		3873	$sig->send;
		3874	}
		3875
		3876	$LOAD = ($NOW - $TICK_START) / $TICK;
		3877	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3878
		3879	if (0) {
		3880	if ($NEXT_TICK) {
		3881	my $jitter = $TICK_START - $NEXT_TICK;
		3882	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3883	warn "jitter $JITTER\n";#d#
2551		3884	}
2552	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#
2554
2555	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2557
2558	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;
2560	},	3885	}
2561	);	3886	}
2562		3887
2563	{	3888	{
2564	BDB::max_poll_time $TICK * 0.1;	3889	# configure BDB
2565	$BDB_POLL_WATCHER = Event->io (	3890
2566	reentrant => 0,
2567	fd => BDB::poll_fileno,
2568	poll => 'r',
2569	prio => 0,
2570	data => WF_AUTOCANCEL,
2571	cb => \&BDB::poll_cb,
2572	);
2573	BDB::min_parallel 8;	3891	BDB::min_parallel 8;
2574		3892	BDB::max_poll_reqs $TICK * 0.1;
2575	BDB::set_sync_prepare {	3893	$AnyEvent::BDB::WATCHER->priority (1);
2576	my $status;
2577	my $current = $Coro::current;
2578	(
2579	sub {
2580	$status = $!;
2581	$current->ready; undef $current;
2582	},
2583	sub {
2584	Coro::schedule while defined $current;
2585	$! = $status;
2586	},
2587	)
2588	};
2589		3894
2590	unless ($DB_ENV) {	3895	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3896	$DB_ENV = BDB::db_env_create;
		3897	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3898	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3899	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3900	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3901	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2592		3902
2593	cf::sync_job {	3903	cf::sync_job {
		3904	eval {
2594	BDB::db_env_open	3905	BDB::db_env_open
2595	$DB_ENV,	3906	$DB_ENV,
2596	$BDB_ENV_DIR,	3907	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3908	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3909	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3910	0666;
2600		3911
2601	cf::cleanup "$!" if $!;	3912	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3913	};
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3914
2604	$DB_ENV->set_lk_detect;	3915	cf::cleanup "db_env_open(db): $@" if $@;
2605	};	3916	};
2606	}	3917	}
		3918
		3919	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3920	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3921	};
		3922	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3923	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3924	};
		3925	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3926	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3927	};
2607	}	3928	}
2608		3929
2609	{	3930	{
		3931	# configure IO::AIO
		3932
2610	IO::AIO::min_parallel 8;	3933	IO::AIO::min_parallel 8;
2611
2612	undef $Coro::AIO::WATCHER;
2613	IO::AIO::max_poll_time $TICK * 0.1;	3934	IO::AIO::max_poll_time $TICK * 0.1;
2614	$AIO_POLL_WATCHER = Event->io (	3935	undef $AnyEvent::AIO::WATCHER;
2615	reentrant => 0,
2616	fd => IO::AIO::poll_fileno,
2617	poll => 'r',
2618	prio => 6,
2619	data => WF_AUTOCANCEL,
2620	cb => \&IO::AIO::poll_cb,
2621	);
2622	}	3936	}
2623		3937
2624	$WRITE_RUNTIME_WATCHER = Event->timer (	3938	my $_log_backtrace;
2625	reentrant => 0,	3939
2626	data => WF_AUTOCANCEL,	3940	sub _log_backtrace {
2627	after => 1,	3941	my ($msg, @addr) = @_;
2628	interval => 10,	3942
2629	prio => 6, # keep it lowest so it acts like a watchdog	3943	$msg =~ s/\n//;
2630	cb => Coro::unblock_sub {	3944
2631	write_runtime	3945	# limit the # of concurrent backtraces
2632	or warn "ERROR: unable to write runtime file: $!";	3946	if ($_log_backtrace < 2) {
		3947	++$_log_backtrace;
		3948	my $perl_bt = Carp::longmess $msg;
		3949	async {
		3950	$Coro::current->{desc} = "abt $msg";
		3951
		3952	my @bt = fork_call {
		3953	@addr = map { sprintf "%x", $_ } @addr;
		3954	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3955	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3956	or die "addr2line: $!";
		3957
		3958	my @funcs;
		3959	my @res = <$fh>;
		3960	chomp for @res;
		3961	while (@res) {
		3962	my ($func, $line) = splice @res, 0, 2, ();
		3963	push @funcs, "[$func] $line";
		3964	}
		3965
		3966	@funcs
		3967	};
		3968
		3969	LOG llevInfo, "[ABT] $perl_bt\n";
		3970	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3971	LOG llevInfo, "[ABT] $_\n" for @bt;
		3972	--$_log_backtrace;
		3973	};
		3974	} else {
		3975	LOG llevInfo, "[ABT] $msg\n";
		3976	LOG llevInfo, "[ABT] [suppressed]\n";
2633	},	3977	}
2634	);	3978	}
		3979
		3980	# load additional modules
		3981	require "cf/$_.pm" for @EXTRA_MODULES;
2635		3982
2636	END { cf::emergency_save }	3983	END { cf::emergency_save }
2637		3984
2638	1	3985	1
2639		3986

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