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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.211 by root, Tue Feb 13 16:23:32 2007 UTC vs.
Revision 1.483 by root, Mon Oct 12 04:02:17 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;
27	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
28		63
		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";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		76
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		79
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		81
40	our %COMMAND = ();	82	our %COMMAND = ();
41	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
42		84
43	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
47		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	92	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
50		95
51	our $TICK = MAX_TIME * 1e-6;	96	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	97	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	98	our $LIBDIR = "$DATADIR/ext";
54	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
55	our $NEXT_TICK;	114	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
58		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	119	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod match mapscript);
61		123
62	our %CFG;	124	our %CFG;
63		125
64	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
66		129
67	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	132	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		133
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $REALLY_UNLOOP; # never set to true, please :)
		146
79	binmode STDOUT;	147	binmode STDOUT;
80	binmode STDERR;	148	binmode STDERR;
81		149
82	# read virtual server time, if available	150	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
87	}	155	}
88		156
89	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	158
91	mkdir cf::localdir . "/" . cf::tmpdir;	159	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		161
96	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
97		163
98	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	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
99		176
100	#############################################################################	177	#############################################################################
101		178
102	=head2 GLOBAL VARIABLES	179	=head2 GLOBAL VARIABLES
103		180
…		…
110	=item $cf::RUNTIME	187	=item $cf::RUNTIME
111		188
112	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
113	every server tick.	190	every server tick.
114		191
115	=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
116		195
117	The perl library directory, where extensions and cf-specific modules can	196	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		200
120	=item $cf::NOW	201	=item $cf::NOW
121		202
122	The time of the last (current) server tick.	203	The time of the last (current) server tick.
123		204
124	=item $cf::TICK	205	=item $cf::TICK
125		206
126	The interval between server ticks, in seconds.	207	The interval between server ticks, in seconds.
127		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
128	=item %cf::CFG	219	=item %cf::CFG
129		220
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	221	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	222	from wherever your confdir points to.
132		223
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	224	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		225
135	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
136	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
137	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.
138	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.
139		241
140	=back	242	=back
141		243
142	=cut	244	=cut
143		245
144	BEGIN {	246	$Coro::State::WARNHOOK = sub {
145	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	247	my $msg = join "", @_;
147	utf8::encode $msg;
148		248
149	$msg .= "\n"	249	$msg .= "\n"
150	unless $msg =~ /\n$/;	250	unless $msg =~ /\n$/;
151		251
		252	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		253
152	LOG llevError, $msg;	254	LOG llevError, $msg;
153	};	255	};
154	}	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	};
155		270
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	271	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	272	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	273	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	274	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		278
163	# 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
164	# within the Safe compartment.	280	# within the Safe compartment.
165	for my $pkg (qw(	281	for my $pkg (qw(
166	cf::global cf::attachable	282	cf::global cf::attachable
167	cf::object cf::object::player	283	cf::object cf::object::player
168	cf::client cf::player	284	cf::client cf::player
169	cf::arch cf::living	285	cf::arch cf::living
		286	cf::map cf::mapspace
170	cf::map cf::party cf::region	287	cf::party cf::region
171	)) {	288	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	289	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	290	}
175		291
176	$Event::DIED = sub {	292	$EV::DIED = sub {
177	warn "error in event callback: @_";	293	warn "error in event callback: @_";
178	};	294	};
		295
		296	#############################################################################
179		297
180	=head2 UTILITY FUNCTIONS	298	=head2 UTILITY FUNCTIONS
181		299
182	=over 4	300	=over 4
183		301
…		…
202	$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;
203	$d	321	$d
204	} || "[unable to dump $_[0]: '$@']";	322	} || "[unable to dump $_[0]: '$@']";
205	}	323	}
206		324
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	325	=item $ref = cf::decode_json $json
210		326
211	Converts a JSON string into the corresponding perl data structure.	327	Converts a JSON string into the corresponding perl data structure.
212		328
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	329	=item $json = cf::encode_json $ref
221		330
222	Converts a perl data structure into its JSON representation.	331	Converts a perl data structure into its JSON representation.
223		332
224	=cut	333	=cut
225		334
226	sub to_json($) {	335	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	336
228	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;
229	}	352	}
230		353
231	=item cf::lock_wait $string	354	=item cf::lock_wait $string
232		355
233	Wait until the given lock is available. See cf::lock_acquire.	356	Wait until the given lock is available. See cf::lock_acquire.
234		357
235	=item my $lock = cf::lock_acquire $string	358	=item my $lock = cf::lock_acquire $string
236		359
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	362	for example when the coroutine gets canceled), the lock is automatically
240	returned.	363	returned.
241		364
		365	Locks are *not* recursive, locking from the same coro twice results in a
		366	deadlocked coro.
		367
242	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
243	uses map_find and cf::map::load uses map_load).	369	uses map_find and cf::map::load uses map_load).
244		370
245	=cut	371	=item $locked = cf::lock_active $string
246		372
247	our %LOCK;	373	Return true if the lock is currently active, i.e. somebody has locked it.
		374
		375	=cut
		376
		377	our $LOCKS = new Coro::SemaphoreSet;
248		378
249	sub lock_wait($) {	379	sub lock_wait($) {
250	my ($key) = @_;	380	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	381	}
258		382
259	sub lock_acquire($) {	383	sub lock_acquire($) {
260	my ($key) = @_;	384	$LOCKS->guard ($_[0])
		385	}
261		386
262	# wait, to be sure we are not locked	387	sub lock_active($) {
263	lock_wait $key;	388	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	389	}
272		390
273	sub freeze_mainloop {	391	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	392	tick_inhibit_inc;
275		393
276	my $guard = Coro::guard {	394	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	395	}
278	$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($$) {
		405	my ($interval, $cb) = @_;
		406
		407	my $start = rand List::Util::min 180, $interval;
		408
		409	EV::periodic $start, $interval, 0, $cb
		410	}
		411
		412	=item cf::get_slot $time[, $priority[, $name]]
		413
		414	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		415	This call blocks and returns only when you have at least C<$time> seconds
		416	of cpu time till the next tick. The slot is only valid till the next cede.
		417
		418	The optional C<$name> can be used to identify the job to run. It might be
		419	used for statistical purposes and should identify the same time-class.
		420
		421	Useful for short background jobs.
		422
		423	=cut
		424
		425	our @SLOT_QUEUE;
		426	our $SLOT_QUEUE;
		427
		428	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		429	$SLOT_QUEUE = Coro::async {
		430	$Coro::current->desc ("timeslot manager");
		431
		432	my $signal = new Coro::Signal;
		433
		434	while () {
		435	next_job:
		436	my $avail = cf::till_tick;
		437	if ($avail > 0.01) {
		438	for (0 .. $#SLOT_QUEUE) {
		439	if ($SLOT_QUEUE[$_][0] < $avail) {
		440	my $job = splice @SLOT_QUEUE, $_, 1, ();
		441	$job->[2]->send;
		442	Coro::cede;
		443	goto next_job;
		444	}
		445	}
		446	}
		447
		448	if (@SLOT_QUEUE) {
		449	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		450	push @cf::WAIT_FOR_TICK, $signal;
		451	$signal->wait;
		452	} else {
		453	Coro::schedule;
		454	}
279	};	455	}
280	$WRITE_RUNTIME_WATCHER->stop;	456	};
281	$TICK_WATCHER->stop;	457
282	$guard	458	sub get_slot($;$$) {
		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	$sig->wait;
283	}	470	}
284		471
285	=item cf::async { BLOCK }	472	=item cf::async { BLOCK }
286		473
287	Currently the same as Coro::async_pool, meaning you cannot use	474	Currently the same as Coro::async_pool, meaning you cannot use
…		…
292		479
293	BEGIN { *async = \&Coro::async_pool }	480	BEGIN { *async = \&Coro::async_pool }
294		481
295	=item cf::sync_job { BLOCK }	482	=item cf::sync_job { BLOCK }
296		483
297	The design of crossfire+ requires that the main coro ($Coro::main) is	484	The design of Deliantra requires that the main coroutine ($Coro::main)
298	always able to handle events or runnable, as crossfire+ is only partly	485	is always able to handle events or runnable, as Deliantra is only
299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	486	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		487	acceptable.
300		488
301	If it must be done, put the blocking parts into C<sync_job>. This will run	489	If it must be done, put the blocking parts into C<sync_job>. This will run
302	the given BLOCK in another coroutine while waiting for the result. The	490	the given BLOCK in another coroutine while waiting for the result. The
303	server will be frozen during this time, so the block should either finish	491	server will be frozen during this time, so the block should either finish
304	fast or be very important.	492	fast or be very important.
…		…
307		495
308	sub sync_job(&) {	496	sub sync_job(&) {
309	my ($job) = @_;	497	my ($job) = @_;
310		498
311	if ($Coro::current == $Coro::main) {	499	if ($Coro::current == $Coro::main) {
		500	my $time = EV::time;
		501
312	# this is the main coro, too bad, we have to block	502	# this is the main coro, too bad, we have to block
313	# till the operation succeeds, freezing the server :/	503	# till the operation succeeds, freezing the server :/
314		504
315	# TODO: use suspend/resume instead	505	LOG llevError, Carp::longmess "sync job";#d#
316	# (but this is cancel-safe)	506
317	my $freeze_guard = freeze_mainloop;	507	my $freeze_guard = freeze_mainloop;
318		508
319	my $busy = 1;	509	my $busy = 1;
320	my @res;	510	my @res;
321		511
322	(async {	512	(async {
		513	$Coro::current->desc ("sync job coro");
323	@res = eval { $job->() };	514	@res = eval { $job->() };
324	warn $@ if $@;	515	warn $@ if $@;
325	undef $busy;	516	undef $busy;
326	})->prio (Coro::PRIO_MAX);	517	})->prio (Coro::PRIO_MAX);
327		518
328	while ($busy) {	519	while ($busy) {
329	Coro::cede or Event::one_event;	520	if (Coro::nready) {
		521	Coro::cede_notself;
		522	} else {
		523	EV::loop EV::LOOP_ONESHOT;
330	}	524	}
		525	}
		526
		527	my $time = EV::time - $time;
		528
		529	$TICK_START += $time; # do not account sync jobs to server load
331		530
332	wantarray ? @res : $res[0]	531	wantarray ? @res : $res[0]
333	} else {	532	} else {
334	# we are in another coroutine, how wonderful, everything just works	533	# we are in another coroutine, how wonderful, everything just works
335		534
…		…
355	$EXT_CORO{$coro+0} = $coro;	554	$EXT_CORO{$coro+0} = $coro;
356		555
357	$coro	556	$coro
358	}	557	}
359		558
360	sub write_runtime {	559	=item fork_call { }, $args
361	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
362		560
363	my $runtime = cf::localdir . "/runtime";	561	Executes the given code block with the given arguments in a seperate
		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.
364		565
365	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	566	=cut
366	or return;
367		567
368	my $value = $cf::RUNTIME + 90 + 10;	568	sub fork_call(&@) {
369	# 10 is the runtime save interval, for a monotonic clock	569	my ($cb, @args) = @_;
370	# 60 allows for the watchdog to kill the server.
371		570
372	(aio_write $fh, 0, (length $value), $value, 0) <= 0	571	# we seemingly have to make a local copy of the whole thing,
373	and return;	572	# otherwise perl prematurely frees the stuff :/
		573	# TODO: investigate and fix (likely this will be rather laborious)
374		574
375	# always fsync - this file is important	575	my @res = Coro::Util::fork_eval {
376	aio_fsync $fh	576	reset_signals;
377	and return;	577	&$cb
		578	}, @args;
378		579
379	close $fh	580	wantarray ? @res : $res[-1]
380	or return;	581	}
381		582
382	aio_rename "$runtime~", $runtime	583	=item $coin = coin_from_name $name
383	and return;
384		584
		585	=cut
		586
		587	our %coin_alias = (
		588	"silver" => "silvercoin",
		589	"silvercoin" => "silvercoin",
		590	"silvercoins" => "silvercoin",
		591	"gold" => "goldcoin",
		592	"goldcoin" => "goldcoin",
		593	"goldcoins" => "goldcoin",
		594	"platinum" => "platinacoin",
		595	"platinumcoin" => "platinacoin",
		596	"platinumcoins" => "platinacoin",
		597	"platina" => "platinacoin",
		598	"platinacoin" => "platinacoin",
		599	"platinacoins" => "platinacoin",
		600	"royalty" => "royalty",
		601	"royalties" => "royalty",
		602	);
		603
		604	sub coin_from_name($) {
		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($$) {
		652	my $key = "$_[0]/$_[1]";
		653
		654	cf::sync_job {
		655	BDB::db_get $DB, undef, $key, my $data;
		656
		657	$! ? ()
		658	: $data
385	1	659	}
		660	}
		661
		662	sub db_put($$$) {
		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 });
386	}	746	}
387		747
388	=back	748	=back
389		749
390	=cut	750	=cut
391		751
392	#############################################################################	752	#############################################################################
393		753
394	=head2 ATTACHABLE OBJECTS	754	=head2 ATTACHABLE OBJECTS
395		755
396	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
397	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")
398	to it. All such attachable objects support the following methods.	758	to it. All such attachable objects support the following methods.
399		759
400	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>
401	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
402	crossfire+).	762	Deliantra).
403		763
404	=over 4	764	=over 4
405		765
406	=item $attachable->attach ($attachment, key => $value...)	766	=item $attachable->attach ($attachment, key => $value...)
407		767
…		…
451	=item cf::CLASS::attachment $name, ...	811	=item cf::CLASS::attachment $name, ...
452		812
453	Register an attachment by C<$name> through which attachable objects of the	813	Register an attachment by C<$name> through which attachable objects of the
454	given CLASS can refer to this attachment.	814	given CLASS can refer to this attachment.
455		815
456	Some classes such as crossfire maps and objects can specify attachments	816	Some classes such as deliantra maps and objects can specify attachments
457	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.
458		818
459	These calls expect any number of the following handler/hook descriptions:	819	These calls expect any number of the following handler/hook descriptions:
460		820
461	=over 4	821	=over 4
…		…
570	$registry = $CB_TYPE[$object_type] ||= [];	930	$registry = $CB_TYPE[$object_type] ||= [];
571		931
572	} elsif ($type eq "subtype") {	932	} elsif ($type eq "subtype") {
573	defined $object_type or Carp::croak "subtype specified without type";	933	defined $object_type or Carp::croak "subtype specified without type";
574	my $object_subtype = shift @arg;	934	my $object_subtype = shift @arg;
575	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	935	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
576		936
577	} elsif ($type eq "package") {	937	} elsif ($type eq "package") {
578	my $pkg = shift @arg;	938	my $pkg = shift @arg;
579		939
580	while (my ($name, $id) = each %cb_id) {	940	while (my ($name, $id) = each %cb_id) {
…		…
609	_attach $registry, $klass, @attach;	969	_attach $registry, $klass, @attach;
610	}	970	}
611		971
612	$obj->{$name} = \%arg;	972	$obj->{$name} = \%arg;
613	} else {	973	} else {
614	warn "object uses attachment '$name' that is not available, postponing.\n";	974	warn "object uses attachment '$name' which is not available, postponing.\n";
615	}	975	}
616		976
617	$obj->{_attachment}{$name} = undef;	977	$obj->{_attachment}{$name} = undef;
618	}	978	}
619		979
…		…
621	if (ref $_[0]) {	981	if (ref $_[0]) {
622	_object_attach @_;	982	_object_attach @_;
623	} else {	983	} else {
624	_attach shift->_attach_registry, @_;	984	_attach shift->_attach_registry, @_;
625	}	985	}
		986	_recalc_want;
626	};	987	};
627		988
628	# all those should be optimised	989	# all those should be optimised
629	sub cf::attachable::detach {	990	sub cf::attachable::detach {
630	my ($obj, $name) = @_;	991	my ($obj, $name) = @_;
…		…
633	delete $obj->{_attachment}{$name};	994	delete $obj->{_attachment}{$name};
634	reattach ($obj);	995	reattach ($obj);
635	} else {	996	} else {
636	Carp::croak "cannot, currently, detach class attachments";	997	Carp::croak "cannot, currently, detach class attachments";
637	}	998	}
		999	_recalc_want;
638	};	1000	};
639		1001
640	sub cf::attachable::attached {	1002	sub cf::attachable::attached {
641	my ($obj, $name) = @_;	1003	my ($obj, $name) = @_;
642		1004
…		…
657	";	1019	";
658	die if $@;	1020	die if $@;
659	}	1021	}
660		1022
661	our $override;	1023	our $override;
662	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?
663		1025
664	sub override {	1026	sub override {
665	$override = 1;	1027	$override = 1;
666	@invoke_results = ();	1028	@INVOKE_RESULTS = (@_);
667	}	1029	}
668		1030
669	sub do_invoke {	1031	sub do_invoke {
670	my $event = shift;	1032	my $event = shift;
671	my $callbacks = shift;	1033	my $callbacks = shift;
672		1034
673	@invoke_results = ();	1035	@INVOKE_RESULTS = ();
674		1036
675	local $override;	1037	local $override;
676		1038
677	for (@$callbacks) {	1039	for (@$callbacks) {
678	eval { &{$_->[1]} };	1040	eval { &{$_->[1]} };
…		…
687	}	1049	}
688		1050
689	0	1051	0
690	}	1052	}
691		1053
692	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1054	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
693		1055
694	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
695		1057
696	Generate an object-specific event with the given arguments.	1058	Generate an object-specific event with the given arguments.
697		1059
698	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
699	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
700	results (if you must, access C<@cf::invoke_results> directly).	1062	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
701		1063
702	=back	1064	=back
703		1065
704	=cut	1066	=cut
705		1067
706	#############################################################################	1068	#############################################################################
707	# 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, $ob2
		1111	}
708		1112
709	sub reattach {	1113	sub reattach {
710	# basically do the same as instantiate, without calling instantiate	1114	# basically do the same as instantiate, without calling instantiate
711	my ($obj) = @_;	1115	my ($obj) = @_;
712		1116
		1117	# no longer needed after getting rid of delete_package?
713	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
714		1119
715	my $registry = $obj->registry;	1120	my $registry = $obj->registry;
716		1121
717	@$registry = ();	1122	@$registry = ();
718		1123
…		…
733	cf::attachable->attach (	1138	cf::attachable->attach (
734	prio => -1000000,	1139	prio => -1000000,
735	on_instantiate => sub {	1140	on_instantiate => sub {
736	my ($obj, $data) = @_;	1141	my ($obj, $data) = @_;
737		1142
738	$data = from_json $data;	1143	$data = decode_json $data;
739		1144
740	for (@$data) {	1145	for (@$data) {
741	my ($name, $args) = @$_;	1146	my ($name, $args) = @$_;
742		1147
743	$obj->attach ($name, %{$args || {} });	1148	$obj->attach ($name, %{$args || {} });
…		…
759	sub object_freezer_save {	1164	sub object_freezer_save {
760	my ($filename, $rdata, $objs) = @_;	1165	my ($filename, $rdata, $objs) = @_;
761		1166
762	sync_job {	1167	sync_job {
763	if (length $$rdata) {	1168	if (length $$rdata) {
		1169	utf8::decode (my $decname = $filename);
764	warn sprintf "saving %s (%d,%d)\n",	1170	warn sprintf "saving %s (%d,%d)\n",
765	$filename, length $$rdata, scalar @$objs;	1171	$decname, length $$rdata, scalar @$objs;
766		1172
767	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1173	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1174	aio_chmod $fh, SAVE_MODE;
769	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1175	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
770	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	}
771	close $fh;	1180	aio_close $fh;
772		1181
773	if (@$objs) {	1182	if (@$objs) {
774	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) {
775	chmod SAVE_MODE, $fh;	1184	aio_chmod $fh, SAVE_MODE;
776	my $data = Storable::nfreeze { version => 1, objs => $objs };	1185	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
777	aio_write $fh, 0, (length $data), $data, 0;	1186	aio_write $fh, 0, (length $data), $data, 0;
778	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	}
779	close $fh;	1191	aio_close $fh;
780	aio_rename "$filename.pst~", "$filename.pst";	1192	aio_rename "$filename.pst~", "$filename.pst";
781	}	1193	}
782	} else {	1194	} else {
783	aio_unlink "$filename.pst";	1195	aio_unlink "$filename.pst";
784	}	1196	}
785		1197
786	aio_rename "$filename~", $filename;	1198	aio_rename "$filename~", $filename;
		1199
		1200	$filename =~ s%/[^/]+$%%;
		1201	aio_pathsync $filename if $cf::USE_FSYNC;
787	} else {	1202	} else {
788	warn "FATAL: $filename~: $!\n";	1203	warn "unable to save objects: $filename~: $!\n";
789	}	1204	}
790	} else {	1205	} else {
791	aio_unlink $filename;	1206	aio_unlink $filename;
792	aio_unlink "$filename.pst";	1207	aio_unlink "$filename.pst";
793	}	1208	}
794
795	#d##TODO# nuke non .map-files if exist
796	if ($filename =~ s/\.map$//) {
797	aio_unlink $filename;
798	aio_unlink "$filename.pst";
799	}
800	}	1209	};
801	}	1210	}
802		1211
803	sub object_freezer_as_string {	1212	sub object_freezer_as_string {
804	my ($rdata, $objs) = @_;	1213	my ($rdata, $objs) = @_;
805		1214
…		…
810		1219
811	sub object_thawer_load {	1220	sub object_thawer_load {
812	my ($filename) = @_;	1221	my ($filename) = @_;
813		1222
814	my ($data, $av);	1223	my ($data, $av);
815
816	#d#TODO remove .map if file does not exist
817	aio_stat $filename and $filename =~ s/\.map$//;
818		1224
819	(aio_load $filename, $data) >= 0	1225	(aio_load $filename, $data) >= 0
820	or return;	1226	or return;
821		1227
822	unless (aio_stat "$filename.pst") {	1228	unless (aio_stat "$filename.pst") {
823	(aio_load "$filename.pst", $av) >= 0	1229	(aio_load "$filename.pst", $av) >= 0
824	or return;	1230	or return;
		1231
825	$av = eval { (Storable::thaw $av)->{objs} };	1232	my $st = eval { Coro::Storable::thaw $av };
		1233	$av = $st->{objs};
826	}	1234	}
827		1235
		1236	utf8::decode (my $decname = $filename);
828	warn sprintf "loading %s (%d)\n",	1237	warn sprintf "loading %s (%d,%d)\n",
829	$filename, length $data, scalar @{$av || []};#d#	1238	$decname, length $data, scalar @{$av || []};
		1239
830	return ($data, $av);	1240	($data, $av)
831	}	1241	}
		1242
		1243	=head2 COMMAND CALLBACKS
		1244
		1245	=over 4
		1246
		1247	=cut
832		1248
833	#############################################################################	1249	#############################################################################
834	# command handling &c	1250	# command handling &c
835		1251
836	=item cf::register_command $name => \&callback($ob,$args);	1252	=item cf::register_command $name => \&callback($ob,$args);
…		…
849	push @{ $COMMAND{$name} }, [$caller, $cb];	1265	push @{ $COMMAND{$name} }, [$caller, $cb];
850	}	1266	}
851		1267
852	=item cf::register_extcmd $name => \&callback($pl,$packet);	1268	=item cf::register_extcmd $name => \&callback($pl,$packet);
853		1269
854	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.
855		1275
856	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
857	called.	1277	called.
858		1278
		1279	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1280
		1281	Register a callback for execution when the client sends an (asynchronous)
		1282	exticmd packet. Exti commands are processed by the server as soon as they
		1283	are received, i.e. out of order w.r.t. other commands. The first argument
		1284	is a client socket. Exti commands can be received anytime, even before
		1285	log-in.
		1286
		1287	If the callback returns something, it is sent back as if reply was being
		1288	called.
		1289
859	=cut	1290	=cut
860		1291
861	sub register_extcmd {	1292	sub register_extcmd {
862	my ($name, $cb) = @_;	1293	my ($name, $cb) = @_;
863		1294
864	$EXTCMD{$name} = $cb;	1295	$EXTCMD{$name} = $cb;
865	}	1296	}
		1297
		1298	sub register_exticmd {
		1299	my ($name, $cb) = @_;
		1300
		1301	$EXTICMD{$name} = $cb;
		1302	}
		1303
		1304	use File::Glob ();
866		1305
867	cf::player->attach (	1306	cf::player->attach (
868	on_command => sub {	1307	on_command => sub {
869	my ($pl, $name, $params) = @_;	1308	my ($pl, $name, $params) = @_;
870		1309
…		…
878	cf::override;	1317	cf::override;
879	},	1318	},
880	on_extcmd => sub {	1319	on_extcmd => sub {
881	my ($pl, $buf) = @_;	1320	my ($pl, $buf) = @_;
882		1321
883	my $msg = eval { from_json $buf };	1322	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
884		1323
885	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
886	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1332	if (my $cb = $EXTCMD{$type}) {
887	if (my %reply = $cb->($pl, $msg)) {	1333	@reply = $cb->($pl, @payload);
888	$pl->ext_reply ($msg->{msgid}, %reply);
889	}
890	}	1334	}
		1335
		1336	$pl->ext_reply ($reply, @reply)
		1337	if $reply;
		1338
891	} else {	1339	} else {
892	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1340	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
893	}	1341	}
894		1342
895	cf::override;	1343	cf::override;
896	},	1344	},
897	);	1345	);
898		1346
		1347	# "readahead" all extensions
899	sub load_extension {	1348	sub cache_extensions {
900	my ($path) = @_;	1349	my $grp = IO::AIO::aio_group;
901		1350
902	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1351	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
903	my $base = $1;	1352	for (grep /\.ext$/, @{$_[0]}) {
904	my $pkg = $1;	1353	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
905	$pkg =~ s/[^[:word:]]/_/g;
906	$pkg = "ext::$pkg";
907
908	warn "... loading '$path' into '$pkg'\n";
909
910	open my $fh, "<:utf8", $path
911	or die "$path: $!";
912
913	my $source =
914	"package $pkg; use strict; use utf8;\n"
915	. "#line 1 \"$path\"\n{\n"
916	. (do { local $/; <$fh> })
917	. "\n};\n1";
918
919	unless (eval $source) {
920	my $msg = $@ ? "$path: $@\n"
921	: "extension disabled.\n";
922	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
923	warn $@;
924	warn "mandatory extension failed to load, exiting.\n";
925	exit 1;
926	}	1354	}
927	die $@;
928	}	1355	};
929		1356
930	push @EXTS, $pkg;	1357	$grp
931	}	1358	}
932		1359
933	sub load_extensions {	1360	sub load_extensions {
		1361	cf::sync_job {
		1362	my %todo;
		1363
934	for my $ext (<$LIBDIR/*.ext>) {	1364	for my $path (<$LIBDIR/*.ext>) {
935	next unless -r $ext;	1365	next unless -r $path;
936	eval {	1366
937	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	$progress = 1;
938	1	1423	}
939	} or warn "$ext not loaded: $@";	1424
		1425	skip:
		1426	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1427	unless $progress;
		1428	}
940	}	1429	};
941	}	1430	}
942		1431
943	#############################################################################	1432	#############################################################################
944		1433
		1434	=back
		1435
945	=head2 CORE EXTENSIONS	1436	=head2 CORE EXTENSIONS
946		1437
947	Functions and methods that extend core crossfire objects.	1438	Functions and methods that extend core deliantra objects.
948		1439
949	=cut	1440	=cut
950		1441
951	package cf::player;	1442	package cf::player;
952		1443
…		…
954		1445
955	=head3 cf::player	1446	=head3 cf::player
956		1447
957	=over 4	1448	=over 4
958		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
959	=item cf::player::find $login	1464	=item cf::player::find $login
960		1465
961	Returns the given player object, loading it if necessary (might block).	1466	Returns the given player object, loading it if necessary (might block).
962		1467
963	=cut	1468	=cut
964		1469
965	sub playerdir($) {	1470	sub playerdir($) {
966	cf::localdir	1471	"$PLAYERDIR/"
967	. "/"
968	. cf::playerdir
969	. "/"
970	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1472	. (ref $_[0] ? $_[0]->ob->name : $_[0])
971	}	1473	}
972		1474
973	sub path($) {	1475	sub path($) {
974	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1476	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
975		1477
976	(playerdir $login) . "/$login.pl"	1478	(playerdir $login) . "/playerdata"
977	}	1479	}
978		1480
979	sub find_active($) {	1481	sub find_active($) {
980	$cf::PLAYER{$_[0]}	1482	$cf::PLAYER{$_[0]}
981	and $cf::PLAYER{$_[0]}->active	1483	and $cf::PLAYER{$_[0]}->active
…		…
984		1486
985	sub exists($) {	1487	sub exists($) {
986	my ($login) = @_;	1488	my ($login) = @_;
987		1489
988	$cf::PLAYER{$login}	1490	$cf::PLAYER{$login}
989	or cf::sync_job { !aio_stat path $login }	1491	or !aio_stat path $login
990	}	1492	}
991		1493
992	sub find($) {	1494	sub find($) {
993	return $cf::PLAYER{$_[0]} || do {	1495	return $cf::PLAYER{$_[0]} || do {
994	my $login = $_[0];	1496	my $login = $_[0];
995		1497
996	my $guard = cf::lock_acquire "user_find:$login";	1498	my $guard = cf::lock_acquire "user_find:$login";
997		1499
998	$cf::PLAYER{$_[0]} || do {	1500	$cf::PLAYER{$_[0]} || do {
999	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
1000	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;
1001	$cf::PLAYER{$login} = $pl	1516	$cf::PLAYER{$login} = $pl
1002	}	1517	}
1003	}	1518	}
1004	}	1519	}
1005		1520
…		…
1014	return if $pl->{deny_save};	1529	return if $pl->{deny_save};
1015		1530
1016	aio_mkdir playerdir $pl, 0770;	1531	aio_mkdir playerdir $pl, 0770;
1017	$pl->{last_save} = $cf::RUNTIME;	1532	$pl->{last_save} = $cf::RUNTIME;
1018		1533
		1534	cf::get_slot 0.01;
		1535
1019	$pl->save_pl ($path);	1536	$pl->save_pl ($path);
1020	Coro::cede;	1537	cf::cede_to_tick;
1021	}	1538	}
1022		1539
1023	sub new($) {	1540	sub new($) {
1024	my ($login) = @_;	1541	my ($login) = @_;
1025		1542
…		…
1031	$cf::PLAYER{$login} = $self;	1548	$cf::PLAYER{$login} = $self;
1032		1549
1033	$self	1550	$self
1034	}	1551	}
1035		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
1036	=item $pl->quit_character	1563	=item $pl->quit_character
1037		1564
1038	Nukes the player without looking back. If logged in, the connection will	1565	Nukes the player without looking back. If logged in, the connection will
1039	be destroyed. May block for a long time.	1566	be destroyed. May block for a long time.
1040		1567
1041	=cut	1568	=cut
1042		1569
1043	sub quit_character {	1570	sub quit_character {
1044	my ($pl) = @_;	1571	my ($pl) = @_;
1045		1572
		1573	my $name = $pl->ob->name;
		1574
1046	$pl->{deny_save} = 1;	1575	$pl->{deny_save} = 1;
1047	$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
1048		1577
1049	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1578	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1050	$pl->deactivate;	1579	$pl->deactivate;
		1580	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1581	$pl->ob->check_score;
1051	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1582	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1052	$pl->ns->destroy if $pl->ns;	1583	$pl->ns->destroy if $pl->ns;
1053		1584
1054	my $path = playerdir $pl;	1585	my $path = playerdir $pl;
1055	my $temp = "$path~$cf::RUNTIME~deleting~";	1586	my $temp = "$path~$cf::RUNTIME~deleting~";
1056	aio_rename $path, $temp;	1587	aio_rename $path, $temp;
1057	delete $cf::PLAYER{$pl->ob->name};	1588	delete $cf::PLAYER{$pl->ob->name};
1058	$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
1059	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;
1060	}	1611	}
1061		1612
1062	=item cf::player::list_logins	1613	=item cf::player::list_logins
1063		1614
1064	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
1065	while and may block, so not sync_job-capable, ever.	1616	while and may block, so not sync_job-capable, ever.
1066		1617
1067	=cut	1618	=cut
1068		1619
1069	sub list_logins {	1620	sub list_logins {
1070	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1621	my $dirs = aio_readdir $PLAYERDIR
1071	or return [];	1622	or return [];
1072		1623
1073	my @logins;	1624	my @logins;
1074		1625
1075	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") {
1076	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1632	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1077	aio_read $fh, 0, 512, my $buf, 0 or next;	1633	aio_read $fh, 0, 512, my $buf, 0 or next;
1078	$buf !~ /^password -------------$/m or next; # official not-valid tag	1634	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1635	}
1079		1636
1080	utf8::decode $login;	1637	utf8::decode $login;
1081	push @logins, $login;	1638	push @logins, $login;
1082	}	1639	}
1083		1640
…		…
1110	}	1667	}
1111		1668
1112	\@paths	1669	\@paths
1113	}	1670	}
1114		1671
		1672	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1673
		1674	Expand deliantra pod fragments into protocol xml.
		1675
1115	=item $player->ext_reply ($msgid, $msgtype, %msg)	1676	=item $player->ext_reply ($msgid, @msg)
1116		1677
1117	Sends an ext reply to the player.	1678	Sends an ext reply to the player.
1118		1679
1119	=cut	1680	=cut
1120		1681
1121	sub ext_reply($$$%) {	1682	sub ext_reply($$@) {
1122	my ($self, $id, %msg) = @_;	1683	my ($self, $id, @msg) = @_;
1123		1684
1124	$msg{msgid} = $id;	1685	$self->ns->ext_reply ($id, @msg)
1125
1126	$self->send ("ext " . cf::to_json \%msg);
1127	}	1686	}
1128		1687
1129	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	}
1130		1728
1131	=back	1729	=back
1132
1133		1730
1134	=head3 cf::map	1731	=head3 cf::map
1135		1732
1136	=over 4	1733	=over 4
1137		1734
…		…
1149	our $MAX_RESET = 3600;	1746	our $MAX_RESET = 3600;
1150	our $DEFAULT_RESET = 3000;	1747	our $DEFAULT_RESET = 3000;
1151		1748
1152	sub generate_random_map {	1749	sub generate_random_map {
1153	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
1154	# mit "rum" bekleckern, nicht	1754	# mit "rum" bekleckern, nicht
1155	$self->_create_random_map (	1755	$self->_create_random_map (
1156	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1756	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1157	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1757	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1158	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1758	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1192	my ($self, $merge) = @_;	1792	my ($self, $merge) = @_;
1193		1793
1194	# we have to keep some variables in memory intact	1794	# we have to keep some variables in memory intact
1195	local $self->{path};	1795	local $self->{path};
1196	local $self->{load_path};	1796	local $self->{load_path};
1197	local $self->{deny_save};
1198	local $self->{deny_reset};
1199		1797
1200	$self->SUPER::thawer_merge ($merge);	1798	$self->SUPER::thawer_merge ($merge);
1201	}	1799	}
1202		1800
1203	sub normalise {	1801	sub normalise {
…		…
1250	$self->init; # pass $1 etc.	1848	$self->init; # pass $1 etc.
1251	return $self;	1849	return $self;
1252	}	1850	}
1253	}	1851	}
1254		1852
1255	Carp::carp "unable to resolve path '$path' (base '$base').";	1853	Carp::cluck "unable to resolve path '$path' (base '$base').";
1256	()	1854	()
1257	}	1855	}
1258		1856
1259	sub init {	1857	sub init {
1260	my ($self) = @_;	1858	my ($self) = @_;
…		…
1275		1873
1276	# the original (read-only) location	1874	# the original (read-only) location
1277	sub load_path {	1875	sub load_path {
1278	my ($self) = @_;	1876	my ($self) = @_;
1279		1877
1280	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1878	"$MAPDIR/$self->{path}.map"
1281	}	1879	}
1282		1880
1283	# the temporary/swap location	1881	# the temporary/swap location
1284	sub save_path {	1882	sub save_path {
1285	my ($self) = @_;	1883	my ($self) = @_;
1286		1884
1287	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1885	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1288	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1886	"$TMPDIR/$path.map"
1289	}	1887	}
1290		1888
1291	# the unique path, undef == no special unique path	1889	# the unique path, undef == no special unique path
1292	sub uniq_path {	1890	sub uniq_path {
1293	my ($self) = @_;	1891	my ($self) = @_;
1294		1892
1295	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1296	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1894	"$UNIQUEDIR/$path"
1297	}	1895	}
1298		1896
1299	# and all this just because we cannot iterate over	1897	sub decay_objects {
1300	# all maps in C++...
1301	sub change_all_map_light {
1302	my ($change) = @_;	1898	my ($self) = @_;
1303		1899
1304	$_->change_map_light ($change)	1900	return if $self->{deny_reset};
1305	for grep $_->outdoor, values %cf::MAP;	1901
		1902	$self->do_decay_objects;
1306	}	1903	}
1307		1904
1308	sub unlink_save {	1905	sub unlink_save {
1309	my ($self) = @_;	1906	my ($self) = @_;
1310		1907
1311	utf8::encode (my $save = $self->save_path);	1908	utf8::encode (my $save = $self->save_path);
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1909	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1314
1315	#d#TODO remove .map and also nuke
1316	$save =~ s/\.map// or return;#d#
1317	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1318	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1319	}	1911	}
1320		1912
1321	sub load_header_from($) {	1913	sub load_header_from($) {
1322	my ($self, $path) = @_;	1914	my ($self, $path) = @_;
1323		1915
1324	utf8::encode $path;	1916	utf8::encode $path;
1325	#aio_open $path, O_RDONLY, 0	1917	my $f = new_from_file cf::object::thawer $path
1326	# or return;
1327
1328	$self->_load_header ($path)
1329	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;
1330		1925
1331	$self->{load_path} = $path;	1926	$self->{load_path} = $path;
1332		1927
1333	1	1928	1
1334	}	1929	}
…		…
1373	$self->load_header_orig	1968	$self->load_header_orig
1374	or return;	1969	or return;
1375	$self->prepare_orig;	1970	$self->prepare_orig;
1376	}	1971	}
1377		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
1378	1	1979	1
1379	}	1980	}
1380		1981
1381	sub find;	1982	sub find;
1382	sub find {	1983	sub find {
1383	my ($path, $origin) = @_;	1984	my ($path, $origin) = @_;
1384		1985
1385	$path = normalise $path, $origin && $origin->path;	1986	$path = normalise $path, $origin && $origin->path;
1386		1987
		1988	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1387	cf::lock_wait "map_find:$path";	1989	my $guard2 = cf::lock_acquire "map_find:$path";
1388		1990
1389	$cf::MAP{$path} || do {	1991	$cf::MAP{$path} || do {
1390	my $guard = cf::lock_acquire "map_find:$path";
1391	my $map = new_from_path cf::map $path	1992	my $map = new_from_path cf::map $path
1392	or return;	1993	or return;
1393		1994
1394	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1395		1996
1396	$map->load_header	1997	$map->load_header
1397	or return;	1998	or return;
1398		1999
1399	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1400	# doing this can freeze the server in a sync job, obviously	2001	# doing this can freeze the server in a sync job, obviously
1401	#$cf::WAIT_FOR_TICK->wait;	2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard2;
		2004	undef $guard1;
1402	$map->reset;	2005	$map->reset;
1403	undef $guard;
1404	return find $path;	2006	return find $path;
1405	}	2007	}
1406		2008
1407	$cf::MAP{$path} = $map	2009	$cf::MAP{$path} = $map
1408	}	2010	}
…		…
1415	my ($self) = @_;	2017	my ($self) = @_;
1416		2018
1417	local $self->{deny_reset} = 1; # loading can take a long time	2019	local $self->{deny_reset} = 1; # loading can take a long time
1418		2020
1419	my $path = $self->{path};	2021	my $path = $self->{path};
		2022
		2023	{
1420	my $guard = cf::lock_acquire "map_load:$path";	2024	my $guard = cf::lock_acquire "map_data:$path";
1421		2025
		2026	return unless $self->valid;
1422	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1423		2028
1424	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1425		2030
1426	$self->alloc;	2031	$self->alloc;
1427		2032
1428	$self->pre_load;	2033	$self->pre_load;
		2034	cf::cede_to_tick;
1429		2035
1430	$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)
1431	or return;	2039	or return;
1432		2040
1433	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->post_load_original
1434	if delete $self->{load_original};	2042	if delete $self->{load_original};
1435		2043
1436	if (my $uniq = $self->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1437	utf8::encode $uniq;	2045	utf8::encode $uniq;
1438	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1439	$self->clear_unique_items;	2048	$self->clear_unique_items;
1440	$self->_load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1441	}	2052	}
1442	}	2053	}
1443		2054
1444	Coro::cede;	2055	$f->resolve_delayed_derefs;
1445		2056
		2057	cf::cede_to_tick;
1446	# now do the right thing for maps	2058	# now do the right thing for maps
1447	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1448
1449	unless ($self->{deny_activate}) {
1450	$self->decay_objects;
1451	$self->fix_auto_apply;
1452	$self->update_buttons;
1453	Coro::cede;
1454	$self->set_darkness_map;
1455	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1456	unless $self->difficulty;	2061	unless $self->difficulty;
1457	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;
1458	$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);
1459	}	2076	}
1460		2077
1461	$self->post_load;	2078	$self->post_load;
1462
1463	$self->in_memory (cf::MAP_IN_MEMORY);
1464	}	2079	}
1465		2080
1466	sub customise_for {	2081	sub customise_for {
1467	my ($self, $ob) = @_;	2082	my ($self, $ob) = @_;
1468		2083
1469	return find "~" . $ob->name . "/" . $self->{path}	2084	return find "~" . $ob->name . "/" . $self->{path}
1470	if $self->per_player;	2085	if $self->per_player;
1471		2086
		2087	# return find "?party/" . $ob->name . "/" . $self->{path}
		2088	# if $self->per_party;
		2089
1472	$self	2090	$self
1473	}	2091	}
1474		2092
1475	# 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
1476	sub load_diag {	2094	sub load_neighbours {
1477	my ($map) = @_;	2095	my ($map) = @_;
1478		2096
1479	my @diag; # diagonal neighbours	2097	my @neigh; # diagonal neighbours
1480		2098
1481	for (0 .. 3) {	2099	for (0 .. 3) {
1482	my $neigh = $map->tile_path ($_)	2100	my $neigh = $map->tile_path ($_)
1483	or next;	2101	or next;
1484	$neigh = find $neigh, $map	2102	$neigh = find $neigh, $map
1485	or next;	2103	or next;
1486	$neigh->load;	2104	$neigh->load;
1487		2105
		2106	push @neigh,
1488	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2107	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1489	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2108	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1490	}	2109	}
1491		2110
1492	for (@diag) {	2111	for (grep defined $_->[0], @neigh) {
		2112	my ($path, $origin) = @$_;
1493	my $neigh = find @$_	2113	my $neigh = find $path, $origin
1494	or next;	2114	or next;
1495	$neigh->load;	2115	$neigh->load;
1496	}	2116	}
1497	}	2117	}
1498		2118
…		…
1503	}	2123	}
1504		2124
1505	sub do_load_sync {	2125	sub do_load_sync {
1506	my ($map) = @_;	2126	my ($map) = @_;
1507		2127
		2128	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2129	if $Coro::current == $Coro::main;
		2130
1508	cf::sync_job { $map->load };	2131	cf::sync_job { $map->load };
1509	}	2132	}
1510		2133
1511	our %MAP_PREFETCH;	2134	our %MAP_PREFETCH;
1512	our $MAP_PREFETCHER = undef;	2135	our $MAP_PREFETCHER = undef;
1513		2136
1514	sub find_async {	2137	sub find_async {
1515	my ($path, $origin) = @_;	2138	my ($path, $origin, $load) = @_;
1516		2139
1517	$path = normalise $path, $origin && $origin->{path};	2140	$path = normalise $path, $origin && $origin->{path};
1518		2141
1519	if (my $map = $cf::MAP{$path}) {	2142	if (my $map = $cf::MAP{$path}) {
1520	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2143	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1521	}	2144	}
1522		2145
1523	undef $MAP_PREFETCH{$path};	2146	$MAP_PREFETCH{$path} |= $load;
		2147
1524	$MAP_PREFETCHER ||= cf::async {	2148	$MAP_PREFETCHER ||= cf::async {
		2149	$Coro::current->{desc} = "map prefetcher";
		2150
1525	while (%MAP_PREFETCH) {	2151	while (%MAP_PREFETCH) {
1526	for my $path (keys %MAP_PREFETCH) {	2152	while (my ($k, $v) = each %MAP_PREFETCH) {
1527	my $map = find $path	2153	if (my $map = find $k) {
1528	or next;
1529	$map->load;	2154	$map->load if $v;
		2155	}
1530		2156
1531	delete $MAP_PREFETCH{$path};	2157	delete $MAP_PREFETCH{$k};
1532	}	2158	}
1533	}	2159	}
1534	undef $MAP_PREFETCHER;	2160	undef $MAP_PREFETCHER;
1535	};	2161	};
1536	$MAP_PREFETCHER->prio (6);	2162	$MAP_PREFETCHER->prio (6);
…		…
1539	}	2165	}
1540		2166
1541	sub save {	2167	sub save {
1542	my ($self) = @_;	2168	my ($self) = @_;
1543		2169
1544	my $lock = cf::lock_acquire "map_data:" . $self->path;	2170	my $lock = cf::lock_acquire "map_data:$self->{path}";
1545		2171
1546	$self->{last_save} = $cf::RUNTIME;	2172	$self->{last_save} = $cf::RUNTIME;
1547		2173
1548	return unless $self->dirty;	2174	return unless $self->dirty;
1549		2175
…		…
1555	return if $self->{deny_save};	2181	return if $self->{deny_save};
1556		2182
1557	local $self->{last_access} = $self->last_access;#d#	2183	local $self->{last_access} = $self->last_access;#d#
1558		2184
1559	cf::async {	2185	cf::async {
		2186	$Coro::current->{desc} = "map player save";
1560	$_->contr->save for $self->players;	2187	$_->contr->save for $self->players;
1561	};	2188	};
		2189
		2190	cf::get_slot 0.02;
1562		2191
1563	if ($uniq) {	2192	if ($uniq) {
1564	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1565	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1566	} else {	2195	} else {
…		…
1572	my ($self) = @_;	2201	my ($self) = @_;
1573		2202
1574	# save first because save cedes	2203	# save first because save cedes
1575	$self->save;	2204	$self->save;
1576		2205
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2207
1579	return if $self->players;	2208	return if $self->players;
1580	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_ACTIVE;
1581	return if $self->{deny_save};	2210	return if $self->{deny_save};
1582		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1583	$self->clear;	2216	$self->clear;
1584	$self->in_memory (cf::MAP_SWAPPED);
1585	}	2217	}
1586		2218
1587	sub reset_at {	2219	sub reset_at {
1588	my ($self) = @_;	2220	my ($self) = @_;
1589		2221
1590	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1591	return 1e99 if $self->isa ("ext::map_per_player");#d#
1592	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1593		2224
1594	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1595	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;
1596		2227
…		…
1607	my ($self) = @_;	2238	my ($self) = @_;
1608		2239
1609	my $lock = cf::lock_acquire "map_data:$self->{path}";	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1610		2241
1611	return if $self->players;	2242	return if $self->players;
1612	return if $self->isa ("ext::map_per_player");#d#
1613		2243
1614	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path, "\n";
1615		2245
1616	$self->in_memory (cf::MAP_SWAPPED);	2246	$self->in_memory (cf::MAP_SWAPPED);
1617		2247
1618	# need to save uniques path	2248	# need to save uniques path
1619	unless ($self->{deny_save}) {	2249	unless ($self->{deny_save}) {
…		…
1623	if $uniq;	2253	if $uniq;
1624	}	2254	}
1625		2255
1626	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1627		2257
		2258	$self->deactivate;
		2259	$_->clear_links_to ($self) for values %cf::MAP;
1628	$self->clear;	2260	$self->clear;
1629
1630	$_->clear_links_to ($self) for values %cf::MAP;
1631		2261
1632	$self->unlink_save;	2262	$self->unlink_save;
1633	$self->destroy;	2263	$self->destroy;
1634	}	2264	}
1635		2265
1636	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1637		2267
1638	sub nuke {	2268	sub nuke {
1639	my ($self) = @_;	2269	my ($self) = @_;
1640		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
1641	delete $cf::MAP{$self->path};	2274	delete $cf::MAP{$self->path};
1642		2275
1643	$self->unlink_save;	2276	$self->unlink_save;
1644		2277
1645	bless $self, "cf::map";	2278	bless $self, "cf::map";
1646	delete $self->{deny_reset};	2279	delete $self->{deny_reset};
1647	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1648	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1649	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1650		2283
1651	$cf::MAP{$self->path} = $self;	2284	$cf::MAP{$self->path} = $self;
		2285	}
1652		2286
1653	$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	]
1654	}	2324	}
1655		2325
1656	=item cf::map::unique_maps	2326	=item cf::map::unique_maps
1657		2327
1658	Returns an arrayref of paths of all shared maps that have	2328	Returns an arrayref of paths of all shared maps that have
1659	instantiated unique items. May block.	2329	instantiated unique items. May block.
1660		2330
1661	=cut	2331	=cut
1662		2332
1663	sub unique_maps() {	2333	sub unique_maps() {
1664	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2334	[
1665	or return;	2335	map {
1666
1667	my @paths;
1668
1669	for (@$files) {
1670	utf8::decode $_;	2336	utf8::decode $_;
1671	next if /\.pst$/;	2337	s/\.map$//; # TODO future compatibility hack
1672	next unless /^$PATH_SEP/o;	2338	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1673		2339	? ()
1674	push @paths, cf::map::normalise $_;	2340	: normalise $_
		2341	} @{ aio_readdir $UNIQUEDIR or [] }
1675	}	2342	]
1676
1677	\@paths
1678	}	2343	}
1679
1680	package cf;
1681		2344
1682	=back	2345	=back
1683		2346
1684	=head3 cf::object	2347	=head3 cf::object
1685		2348
…		…
1689		2352
1690	=over 4	2353	=over 4
1691		2354
1692	=item $ob->inv_recursive	2355	=item $ob->inv_recursive
1693		2356
1694	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.
1695		2359
1696	=cut	2360	=cut
1697		2361
1698	sub inv_recursive_;	2362	sub inv_recursive_;
1699	sub inv_recursive_ {	2363	sub inv_recursive_ {
…		…
1702		2366
1703	sub inv_recursive {	2367	sub inv_recursive {
1704	inv_recursive_ inv $_[0]	2368	inv_recursive_ inv $_[0]
1705	}	2369	}
1706		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
1707	package cf;	2399	package cf;
1708		2400
1709	=back	2401	=back
1710		2402
1711	=head3 cf::object::player	2403	=head3 cf::object::player
…		…
1717	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>
1718	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
1719	dialogue with the given NPC character.	2411	dialogue with the given NPC character.
1720		2412
1721	=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	};
1722		2428
1723	# rough implementation of a future "reply" method that works	2429	# rough implementation of a future "reply" method that works
1724	# with dialog boxes.	2430	# with dialog boxes.
1725	#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
1726	sub cf::object::player::reply($$$;$) {	2432	sub cf::object::player::reply($$$;$) {
…		…
1728		2434
1729	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1730		2436
1731	if ($self->{record_replies}) {	2437	if ($self->{record_replies}) {
1732	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2439
1733	} 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 {
1734	$msg = $npc->name . " says: $msg" if $npc;	2448	$msg = $npc->name . " says: $msg" if $npc;
1735	$self->message ($msg, $flags);	2449	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2450	}
1736	}	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 (@_);
1737	}	2462	}
1738		2463
1739	=item $player_object->may ("access")	2464	=item $player_object->may ("access")
1740		2465
1741	Returns wether the given player is authorized to access resource "access"	2466	Returns wether the given player is authorized to access resource "access"
…		…
1754		2479
1755	=item $player_object->enter_link	2480	=item $player_object->enter_link
1756		2481
1757	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}>).
1758		2483
1759	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.
1760	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.
1761		2488
1762	Will never block.	2489	Will never block.
1763		2490
1764	=item $player_object->leave_link ($map, $x, $y)	2491	=item $player_object->leave_link ($map, $x, $y)
1765		2492
…		…
1788	$self->deactivate_recursive;	2515	$self->deactivate_recursive;
1789		2516
1790	return if UNIVERSAL::isa $self->map, "ext::map_link";	2517	return if UNIVERSAL::isa $self->map, "ext::map_link";
1791		2518
1792	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1793	if $self->map;	2520	if $self->map && $self->map->{path} ne "{link}";
1794		2521
1795	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2522	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1796	}	2523	}
1797		2524
1798	sub cf::object::player::leave_link {	2525	sub cf::object::player::leave_link {
1799	my ($self, $map, $x, $y) = @_;	2526	my ($self, $map, $x, $y) = @_;
		2527
		2528	return unless $self->contr->active;
1800		2529
1801	my $link_pos = delete $self->{_link_pos};	2530	my $link_pos = delete $self->{_link_pos};
1802		2531
1803	unless ($map) {	2532	unless ($map) {
1804	# restore original map position	2533	# restore original map position
…		…
1818	# use -1 or undef as default coordinates, not 0, 0	2547	# use -1 or undef as default coordinates, not 0, 0
1819	($x, $y) = ($map->enter_x, $map->enter_y)	2548	($x, $y) = ($map->enter_x, $map->enter_y)
1820	if $x <=0 && $y <= 0;	2549	if $x <=0 && $y <= 0;
1821		2550
1822	$map->load;	2551	$map->load;
1823	$map->load_diag;	2552	$map->load_neighbours;
1824		2553
1825	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
1826	$self->activate_recursive;	2560	$self->activate_recursive;
1827	$self->enter_map ($map, $x, $y);
1828	}	2561	}
1829		2562
1830	cf::player->attach (	2563	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1831	on_logout => sub {
1832	my ($pl) = @_;
1833		2564
1834	# abort map switching before logout	2565	Moves the player to the given map-path and coordinates by first freezing
1835	if ($pl->ob->{_link_pos}) {	2566	her, loading and preparing them map, calling the provided $check callback
1836	cf::sync_job {	2567	that has to return the map if sucecssful, and then unfreezes the player on
1837	$pl->ob->leave_link	2568	the new (success) or old (failed) map position. In either case, $done will
1838	};	2569	be called at the end of this process.
1839	}
1840	},
1841	on_login => sub {
1842	my ($pl) = @_;
1843		2570
1844	# try to abort aborted map switching on player login :)	2571	Note that $check will be called with a potentially non-loaded map, so if
1845	# should happen only on crashes	2572	it needs a loaded map it has to call C<< ->load >>.
1846	if ($pl->ob->{_link_pos}) {
1847	$pl->ob->enter_link;
1848	(async {
1849	# we need this sleep as the login has a concurrent enter_exit running
1850	# and this sleep increases chances of the player not ending up in scorn
1851	$pl->ob->reply (undef,
1852	"There was an internal problem at your last logout, "
1853	. "the server will try to bring you to your intended destination in a second.",
1854	cf::NDI_RED);
1855	Coro::Timer::sleep 1;
1856	$pl->ob->leave_link;
1857	})->prio (2);
1858	}
1859	},
1860	);
1861		2573
1862	=item $player_object->goto ($path, $x, $y)
1863
1864	=cut	2574	=cut
		2575
		2576	our $GOTOGEN;
1865		2577
1866	sub cf::object::player::goto {	2578	sub cf::object::player::goto {
1867	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;
1868		2583
1869	$self->enter_link;	2584	$self->enter_link;
1870		2585
1871	(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
1872	my $map = eval {	2608	my $map = eval {
1873	my $map = cf::map::find $path;	2609	my $map = defined $path ? cf::map::find $path : undef;
		2610
		2611	if ($map) {
1874	$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
1875	$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 $@;
1876	} or	2624	}
1877	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1878		2625
		2626	if ($gen == $self->{_goto_generation}) {
		2627	delete $self->{_goto_generation};
1879	$self->leave_link ($map, $x, $y);	2628	$self->leave_link ($map, $x, $y);
		2629	}
		2630
		2631	$done->() if $done;
1880	})->prio (1);	2632	})->prio (1);
1881	}	2633	}
1882		2634
1883	=item $player_object->enter_exit ($exit_object)	2635	=item $player_object->enter_exit ($exit_object)
1884		2636
…		…
1904	}	2656	}
1905		2657
1906	sub prepare_random_map {	2658	sub prepare_random_map {
1907	my ($exit) = @_;	2659	my ($exit) = @_;
1908		2660
1909	my $guard = cf::lock_acquire "exit_prepare:$exit";
1910
1911	# all this does is basically replace the /! path by	2661	# all this does is basically replace the /! path by
1912	# a new random map path (?random/...) with a seed	2662	# a new random map path (?random/...) with a seed
1913	# that depends on the exit object	2663	# that depends on the exit object
1914		2664
1915	my $rmp = parse_random_map_params $exit->msg;	2665	my $rmp = parse_random_map_params $exit->msg;
…		…
1917	if ($exit->map) {	2667	if ($exit->map) {
1918	$rmp->{region} = $exit->region->name;	2668	$rmp->{region} = $exit->region->name;
1919	$rmp->{origin_map} = $exit->map->path;	2669	$rmp->{origin_map} = $exit->map->path;
1920	$rmp->{origin_x} = $exit->x;	2670	$rmp->{origin_x} = $exit->x;
1921	$rmp->{origin_y} = $exit->y;	2671	$rmp->{origin_y} = $exit->y;
		2672
		2673	$exit->map->touch;
1922	}	2674	}
1923		2675
1924	$rmp->{random_seed} ||= $exit->random_seed;	2676	$rmp->{random_seed} ||= $exit->random_seed;
1925		2677
1926	my $data = cf::to_json $rmp;	2678	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1927	my $md5 = Digest::MD5::md5_hex $data;	2679	my $md5 = Digest::MD5::md5_hex $data;
1928	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2680	my $meta = "$RANDOMDIR/$md5.meta";
1929		2681
1930	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2682	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1931	aio_write $fh, 0, (length $data), $data, 0;	2683	aio_write $fh, 0, (length $data), $data, 0;
1932	undef $fh;	2684	undef $fh;
1933	aio_rename "$meta~", $meta;	2685	aio_rename "$meta~", $meta;
1934		2686
		2687	my $slaying = "?random/$md5";
		2688
		2689	if ($exit->valid) {
1935	$exit->slaying ("?random/$md5");	2690	$exit->slaying ("?random/$md5");
1936	$exit->msg (undef);	2691	$exit->msg (undef);
		2692	}
1937	}	2693	}
1938	}	2694	}
1939		2695
1940	sub cf::object::player::enter_exit {	2696	sub cf::object::player::enter_exit {
1941	my ($self, $exit) = @_;	2697	my ($self, $exit) = @_;
1942		2698
1943	return unless $self->type == cf::PLAYER;	2699	return unless $self->type == cf::PLAYER;
1944		2700
1945	if ($exit->slaying eq "/!") {
1946	#TODO: this should de-fi-ni-te-ly not be a sync-job
1947	cf::sync_job { prepare_random_map $exit };
1948	}
1949
1950	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1951	my $hp = $exit->stats->hp;
1952	my $sp = $exit->stats->sp;
1953
1954	$self->enter_link;	2701	$self->enter_link;
1955		2702
1956	(async {	2703	(async {
1957	$self->deactivate_recursive; # just to be sure	2704	$Coro::current->{desc} = "enter_exit";
		2705
1958	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
1959	$self->goto ($slaying, $hp, $sp);	2721	$self->goto ($map, $x, $y);
1960		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
1961	1;	2727	1
1962	}) {	2728	}) {
1963	$self->message ("Something went wrong deep within the crossfire server. "	2729	$self->message ("Something went wrong deep within the deliantra server. "
1964	. "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. "
1965	. "Please report this to the dungeon master!",	2731	. "Please report this to the dungeon master!",
1966	cf::NDI_UNIQUE | cf::NDI_RED);	2732	cf::NDI_UNIQUE | cf::NDI_RED);
1967		2733
1968	warn "ERROR in enter_exit: $@";	2734	warn "ERROR in enter_exit: $@";
1969	$self->leave_link;	2735	$self->leave_link;
1970	}	2736	}
1971	})->prio (1);	2737	})->prio (1);
…		…
1984		2750
1985	sub cf::client::send_drawinfo {	2751	sub cf::client::send_drawinfo {
1986	my ($self, $text, $flags) = @_;	2752	my ($self, $text, $flags) = @_;
1987		2753
1988	utf8::encode $text;	2754	utf8::encode $text;
1989	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2755	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1990	}	2756	}
1991		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	}
1992		2952
1993	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
1994		2954
1995	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
1996	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>,
1997	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>.
1998		2958
1999	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
2000	reliable at some point in the future.	2960	become reliable at some point in the future.
2001		2961
2002	=cut	2962	=cut
2003		2963
2004	sub cf::client::query {	2964	sub cf::client::query {
2005	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
2013	utf8::encode $text;	2973	utf8::encode $text;
2014	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2015		2975
2016	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
2017	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
2018	}	2980	}
2019		2981
2020	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	},
2021	on_reply => sub {	2988	on_reply => sub {
2022	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
2023		2990
2024	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
2025	# get handled first	2992	# get handled first
…		…
2037	} else {	3004	} else {
2038	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2039	}	3006	}
2040	}	3007	}
2041	},	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	},
2042	);	3035	);
2043		3036
2044	=item $client->async (\&cb)	3037	=item $client->async (\&cb)
2045		3038
2046	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
…		…
2087	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
2088	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
2089		3082
2090	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
2091		3084
2092	$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	));
2093		3090
2094	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
2095		3092
2096	=pod	3093	=pod
2097		3094
2098	The following fucntions and emthods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
2099		3096
2100	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
2101	cf::object::player player	3102	cf::object::player
2102	cf::player peaceful	3103	player
2103	cf::map trigger	3104
		3105	cf::player
		3106	peaceful
		3107
		3108	cf::map
		3109	trigger
2104		3110
2105	=cut	3111	=cut
2106		3112
2107	for (	3113	for (
2108	["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)],
2109	["cf::object::player" => qw(player)],	3117	["cf::object::player" => qw(player)],
2110	["cf::player" => qw(peaceful)],	3118	["cf::player" => qw(peaceful send_msg)],
2111	["cf::map" => qw(trigger)],	3119	["cf::map" => qw(trigger)],
2112	) {	3120	) {
2113	no strict 'refs';	3121	no strict 'refs';
2114	my ($pkg, @funs) = @$_;	3122	my ($pkg, @funs) = @$_;
2115	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2132	my ($code, %vars) = @_;	3140	my ($code, %vars) = @_;
2133		3141
2134	my $qcode = $code;	3142	my $qcode = $code;
2135	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3143	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2136	$qcode =~ s/\n/\\n/g;	3144	$qcode =~ s/\n/\\n/g;
		3145
		3146	%vars = (_dummy => 0) unless %vars;
2137		3147
2138	local $_;	3148	local $_;
2139	local @safe::cf::_safe_eval_args = values %vars;	3149	local @safe::cf::_safe_eval_args = values %vars;
2140		3150
2141	my $eval =	3151	my $eval =
…		…
2184	=back	3194	=back
2185		3195
2186	=cut	3196	=cut
2187		3197
2188	#############################################################################	3198	#############################################################################
2189
2190	=head2 EXTENSION DATABASE SUPPORT
2191
2192	Crossfire maintains a very simple database for extension use. It can
2193	currently store anything that can be serialised using Storable, which
2194	excludes objects.
2195
2196	The parameter C<$family> should best start with the name of the extension
2197	using it, it should be unique.
2198
2199	=over 4
2200
2201	=item $value = cf::db_get $family => $key
2202
2203	Returns a single value from the database.
2204
2205	=item cf::db_put $family => $key => $value
2206
2207	Stores the given C<$value> in the family.
2208
2209	=cut
2210
2211	our $DB;
2212
2213	sub db_init {
2214	unless ($DB) {
2215	$DB = BDB::db_create $DB_ENV;
2216
2217	cf::sync_job {
2218	eval {
2219	$DB->set_flags (BDB::CHKSUM);
2220
2221	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2222	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2223	cf::cleanup "db_open(db): $!" if $!;
2224	};
2225	cf::cleanup "db_open(db): $@" if $@;
2226	};
2227
2228	my $path = cf::localdir . "/database.pst";
2229	if (stat $path) {
2230	cf::sync_job {
2231	my $pst = Storable::retrieve $path;
2232
2233	cf::db_put (board => data => $pst->{board});
2234	cf::db_put (guildrules => data => $pst->{guildrules});
2235	cf::db_put (rent => balance => $pst->{rent}{balance});
2236	BDB::db_env_txn_checkpoint $DB_ENV;
2237
2238	unlink $path;
2239	};
2240	}
2241	}
2242	}
2243
2244	sub db_get($$) {
2245	my $key = "$_[0]/$_[1]";
2246
2247	cf::sync_job {
2248	BDB::db_get $DB, undef, $key, my $data;
2249
2250	$! ? ()
2251	: Compress::LZF::sthaw $data
2252	}
2253	}
2254
2255	sub db_put($$$) {
2256	BDB::dbreq_pri 4;
2257	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2258	}
2259
2260	#############################################################################
2261	# the server's init and main functions	3199	# the server's init and main functions
2262		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
2263	sub load_resources {	3336	sub load_resource_file($) {
2264	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"
2265	or die "unable to load regions file\n";#d#	3352	or die "unable to load regions file\n";
2266	}
2267		3353
2268	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 {
2269	open my $fh, "<:utf8", cf::confdir . "/config"	3387	open my $fh, "<:utf8", "$CONFDIR/config"
2270	or return;	3388	or return;
2271		3389
2272	local $/;	3390	local $/;
2273	*CFG = YAML::Syck::Load <$fh>;	3391	*CFG = YAML::Load <$fh>;
2274		3392
2275	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3393	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2276		3394
2277	$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};
2278	$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};
…		…
2284	};	3402	};
2285	warn $@ if $@;	3403	warn $@ if $@;
2286	}	3404	}
2287	}	3405	}
2288		3406
2289	sub init {	3407	sub pidfile() {
2290	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;
2291	}	3433	}
2292		3434
2293	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
2294	# we must not ever block the main coroutine	3450	# we must not ever block the main coroutine
2295	local $Coro::idle = sub {	3451	local $Coro::idle = sub {
2296	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#
2297	(async {	3453	(async {
2298	Event::one_event;	3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
2299	})->prio (Coro::PRIO_MAX);	3456	})->prio (Coro::PRIO_MAX);
2300	};	3457	};
2301		3458
2302	cfg_load;	3459	evthread_start IO::AIO::poll_fileno;
		3460
		3461	cf::sync_job {
		3462	reload_resources;
		3463	reload_config;
2303	db_init;	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
2304	load_extensions;	3477	load_extensions;
2305		3478
2306	$TICK_WATCHER->start;	3479	utime time, time, $RUNTIMEFILE;
2307	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;
2308	}	3489	}
2309		3490
2310	#############################################################################	3491	#############################################################################
2311	# initialisation and cleanup	3492	# initialisation and cleanup
2312		3493
2313	# install some emergency cleanup handlers	3494	# install some emergency cleanup handlers
2314	BEGIN {	3495	BEGIN {
		3496	our %SIGWATCHER = ();
2315	for my $signal (qw(INT HUP TERM)) {	3497	for my $signal (qw(INT HUP TERM)) {
2316	Event->signal (	3498	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2317	reentrant => 0,
2318	data => WF_AUTOCANCEL,
2319	signal => $signal,
2320	prio => 0,
2321	cb => sub {
2322	cf::cleanup "SIG$signal";	3499	cf::cleanup "SIG$signal";
2323	},
2324	);	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
2325	}	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 };
2326	}	3588	}
2327		3589
2328	sub emergency_save() {	3590	sub emergency_save() {
2329	my $freeze_guard = cf::freeze_mainloop;	3591	my $freeze_guard = cf::freeze_mainloop;
2330		3592
2331	warn "enter emergency perl save\n";	3593	warn "emergency_perl_save: enter\n";
2332		3594
2333	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
2334	# use a peculiar iteration method to avoid tripping on perl	3601	# use a peculiar iteration method to avoid tripping on perl
2335	# refcount bugs in for. also avoids problems with players	3602	# refcount bugs in for. also avoids problems with players
2336	# and maps saved/destroyed asynchronously.	3603	# and maps saved/destroyed asynchronously.
2337	warn "begin emergency player save\n";	3604	warn "emergency_perl_save: begin player save\n";
2338	for my $login (keys %cf::PLAYER) {	3605	for my $login (keys %cf::PLAYER) {
2339	my $pl = $cf::PLAYER{$login} or next;	3606	my $pl = $cf::PLAYER{$login} or next;
2340	$pl->valid or next;	3607	$pl->valid or next;
		3608	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2341	$pl->save;	3609	$pl->save;
2342	}	3610	}
2343	warn "end emergency player save\n";	3611	warn "emergency_perl_save: end player save\n";
2344		3612
2345	warn "begin emergency map save\n";	3613	warn "emergency_perl_save: begin map save\n";
2346	for my $path (keys %cf::MAP) {	3614	for my $path (keys %cf::MAP) {
2347	my $map = $cf::MAP{$path} or next;	3615	my $map = $cf::MAP{$path} or next;
2348	$map->valid or next;	3616	$map->valid or next;
2349	$map->save;	3617	$map->save;
2350	}	3618	}
2351	warn "end emergency map save\n";	3619	warn "emergency_perl_save: end map save\n";
2352		3620
2353	warn "begin emergency database checkpoint\n";	3621	warn "emergency_perl_save: begin database checkpoint\n";
2354	BDB::db_env_txn_checkpoint $DB_ENV;	3622	BDB::db_env_txn_checkpoint $DB_ENV;
2355	warn "end emergency database checkpoint\n";	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";
2356	};	3628	};
2357		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
2358	warn "leave emergency perl save\n";	3635	warn "emergency_perl_save: leave\n";
2359	}	3636	}
2360		3637
2361	sub post_cleanup {	3638	sub post_cleanup {
2362	my ($make_core) = @_;	3639	my ($make_core) = @_;
2363		3640
2364	warn Carp::longmess "post_cleanup backtrace"	3641	warn Carp::longmess "post_cleanup backtrace"
2365	if $make_core;	3642	if $make_core;
2366	}
2367		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 $pkg\n";#d#
		3672	}
		3673
2368	sub reload() {	3674	sub do_reload_perl() {
2369	# can/must only be called in main	3675	# can/must only be called in main
2370	if ($Coro::current != $Coro::main) {	3676	if ($Coro::current != $Coro::main) {
2371	warn "can only reload from main coroutine";	3677	warn "can only reload from main coroutine";
2372	return;	3678	return;
2373	}	3679	}
2374		3680
		3681	return if $RELOAD++;
		3682
		3683	my $t1 = EV::time;
		3684
		3685	while ($RELOAD) {
2375	warn "reloading...";	3686	warn "reloading...";
2376		3687
2377	warn "cancelling server ticker";	3688	warn "entering sync_job";
2378	$TICK_WATCHER->cancel;
2379		3689
		3690	cf::sync_job {
		3691	cf::write_runtime_sync; # external watchdog should not bark
2380	cf::emergency_save;	3692	cf::emergency_save;
		3693	cf::write_runtime_sync; # external watchdog should not bark
2381		3694
2382	eval {	3695	warn "syncing database to disk";
		3696	BDB::db_env_txn_checkpoint $DB_ENV;
		3697
2383	# 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
2384		3699
2385	warn "cancelling all WF_AUTOCANCEL watchers";
2386	for (Event::all_watchers) {
2387	$_->cancel if $_->data & WF_AUTOCANCEL;
2388	}
2389
2390	warn "syncing database to disk";
2391	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2392
2393	warn "flushing outstanding aio requests";	3700	warn "flushing outstanding aio requests";
2394	for (;;) {
2395	BDB::flush;
2396	IO::AIO::flush;
2397	Coro::cede;
2398	last unless IO::AIO::nreqs || BDB::nreqs;	3701	while (IO::AIO::nreqs || BDB::nreqs) {
2399	warn "iterate...";	3702	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2400	}
2401
2402	warn "cancelling all extension coros";
2403	$_->cancel for values %EXT_CORO;
2404	%EXT_CORO = ();
2405
2406	warn "removing commands";
2407	%COMMAND = ();
2408
2409	warn "removing ext commands";
2410	%EXTCMD = ();
2411
2412	warn "unloading/nuking all extensions";
2413	for my $pkg (@EXTS) {
2414	warn "... unloading $pkg";
2415
2416	if (my $cb = $pkg->can ("unload")) {
2417	eval {
2418	$cb->($pkg);
2419	1
2420	} or warn "$pkg unloaded, but with errors: $@";
2421	}	3703	}
2422		3704
2423	warn "... nuking $pkg";	3705	warn "cancelling all extension coros";
2424	Symbol::delete_package $pkg;	3706	$_->cancel for values %EXT_CORO;
2425	}	3707	%EXT_CORO = ();
2426		3708
2427	warn "unloading all perl modules loaded from $LIBDIR";	3709	warn "removing commands";
2428	while (my ($k, $v) = each %INC) {	3710	%COMMAND = ();
2429	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2430		3711
		3712	warn "removing ext/exti commands";
		3713	%EXTCMD = ();
		3714	%EXTICMD = ();
		3715
		3716	warn "unloading/nuking all extensions";
		3717	for my $pkg (@EXTS) {
2431	warn "... unloading $k";	3718	warn "... unloading $pkg";
2432	delete $INC{$k};
2433		3719
2434	$k =~ s/\.pm$//;
2435	$k =~ s/\//::/g;
2436
2437	if (my $cb = $k->can ("unload_module")) {	3720	if (my $cb = $pkg->can ("unload")) {
		3721	eval {
2438	$cb->();	3722	$cb->($pkg);
		3723	1
		3724	} or warn "$pkg unloaded, but with errors: $@";
		3725	}
		3726
		3727	warn "... clearing $pkg";
		3728	clear_package $pkg;
2439	}	3729	}
2440		3730
2441	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 $k;
2442	}	3746	}
2443		3747
2444	warn "getting rid of safe::, as good as possible";	3748	warn "getting rid of safe::, as good as possible";
2445	Symbol::delete_package "safe::$_"	3749	clear_package "safe::$_"
2446	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);
2447		3751
2448	warn "unloading cf.pm \"a bit\"";	3752	warn "unloading cf.pm \"a bit\"";
2449	delete $INC{"cf.pm"};	3753	delete $INC{"cf.pm"};
		3754	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2450		3755
2451	# don't, removes xs symbols, too,	3756	# don't, removes xs symbols, too,
2452	# and global variables created in xs	3757	# and global variables created in xs
2453	#Symbol::delete_package __PACKAGE__;	3758	#clear_package __PACKAGE__;
2454		3759
2455	warn "unload completed, starting to reload now";	3760	warn "unload completed, starting to reload now";
2456		3761
2457	warn "reloading cf.pm";	3762	warn "reloading cf.pm";
2458	require cf;	3763	require cf;
2459	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3764	cf::_connect_to_perl_1;
2460		3765
2461	warn "loading config and database again";	3766	warn "loading config and database again";
2462	cf::cfg_load;	3767	cf::reload_config;
2463		3768
2464	warn "loading extensions";	3769	warn "loading extensions";
2465	cf::load_extensions;	3770	cf::load_extensions;
2466		3771
		3772	if ($REATTACH_ON_RELOAD) {
2467	warn "reattaching attachments to objects/players";	3773	warn "reattaching attachments to objects/players";
2468	_global_reattach;	3774	_global_reattach; # objects, sockets
2469	warn "reattaching attachments to maps";	3775	warn "reattaching attachments to maps";
2470	reattach $_ for values %MAP;	3776	reattach $_ for values %MAP;
		3777	warn "reattaching attachments to players";
		3778	reattach $_ for values %PLAYER;
		3779	}
2471		3780
2472	warn "loading reloadable resources";	3781	warn "running post_init jobs";
2473	load_resources;	3782	(pop @POST_INIT)->(1) while @POST_INIT;
2474		3783
2475	warn "restarting server ticker";	3784	warn "leaving sync_job";
2476		3785
2477	$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 $RELOAD_WATCHER;
		3812	};
2478	};	3813	};
2479		3814	}
2480	if ($@) {
2481	warn $@;
2482	warn "error while reloading, exiting.";
2483	exit 1;
2484	}
2485
2486	warn "reloaded";
2487	};
2488
2489	our $RELOAD_WATCHER; # used only during reload
2490		3815
2491	register_command "reload" => sub {	3816	register_command "reload" => sub {
2492	my ($who, $arg) = @_;	3817	my ($who, $arg) = @_;
2493		3818
2494	if ($who->flag (FLAG_WIZ)) {	3819	if ($who->flag (FLAG_WIZ)) {
2495	$who->message ("reloading server.");	3820	$who->message ("reloading server.");
2496		3821	async {
2497	# doing reload synchronously and two reloads happen back-to-back,	3822	$Coro::current->{desc} = "perl_reload";
2498	# coro crashes during coro_state_free->destroy here.
2499
2500	$RELOAD_WATCHER ||= Event->timer (
2501	reentrant => 0,
2502	after => 0,
2503	data => WF_AUTOCANCEL,
2504	cb => sub {
2505	reload;	3823	reload_perl;
2506	undef $RELOAD_WATCHER;
2507	},
2508	);	3824	};
2509	}	3825	}
2510	};	3826	};
2511		3827
2512	unshift @INC, $LIBDIR;	3828	unshift @INC, $LIBDIR;
2513		3829
2514	my $bug_warning = 0;	3830	my $bug_warning = 0;
2515		3831
2516	$TICK_WATCHER = Event->timer (	3832	our @WAIT_FOR_TICK;
2517	reentrant => 0,	3833	our @WAIT_FOR_TICK_BEGIN;
2518	parked => 1,	3834
2519	prio => 0,	3835	sub wait_for_tick {
2520	at => $NEXT_TICK || $TICK,	3836	return if tick_inhibit || $Coro::current == $Coro::main;
2521	data => WF_AUTOCANCEL,	3837
2522	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	$signal->wait;
		3849	}
		3850
		3851	sub tick {
2523	if ($Coro::current != $Coro::main) {	3852	if ($Coro::current != $Coro::main) {
2524	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2525	unless ++$bug_warning > 10;	3854	unless ++$bug_warning > 10;
2526	return;	3855	return;
2527	}	3856	}
2528		3857
2529	$NOW = Event::time;
2530
2531	cf::server_tick; # one server iteration	3858	cf::server_tick; # one server iteration
2532	$RUNTIME += $TICK;
2533	$NEXT_TICK += $TICK;
2534		3859
2535	$WAIT_FOR_TICK->broadcast;	3860	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2536	$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	}
2537		3868
2538	Event::sweep;	3869	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2539	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#
2540		3884	}
2541	# my $AFTER = Event::time;
2542	# warn $AFTER - $NOW;#d#
2543
2544	# if we are delayed by four ticks or more, skip them all
2545	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2546
2547	$TICK_WATCHER->at ($NEXT_TICK);
2548	$TICK_WATCHER->start;
2549	},	3885	}
2550	);	3886	}
2551		3887
2552	{	3888	{
2553	BDB::max_poll_time $TICK * 0.1;	3889	# configure BDB
2554	$BDB_POLL_WATCHER = Event->io (	3890
2555	reentrant => 0,
2556	fd => BDB::poll_fileno,
2557	poll => 'r',
2558	prio => 0,
2559	data => WF_AUTOCANCEL,
2560	cb => \&BDB::poll_cb,
2561	);
2562	BDB::min_parallel 8;	3891	BDB::min_parallel 8;
2563		3892	BDB::max_poll_reqs $TICK * 0.1;
2564	BDB::set_sync_prepare {	3893	$AnyEvent::BDB::WATCHER->priority (1);
2565	my $status;
2566	my $current = $Coro::current;
2567	(
2568	sub {
2569	$status = $!;
2570	$current->ready; undef $current;
2571	},
2572	sub {
2573	Coro::schedule while defined $current;
2574	$! = $status;
2575	},
2576	)
2577	};
2578		3894
2579	unless ($DB_ENV) {	3895	unless ($DB_ENV) {
2580	$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);
2581		3902
2582	cf::sync_job {	3903	cf::sync_job {
2583	eval {	3904	eval {
2584	BDB::db_env_open	3905	BDB::db_env_open
2585	$DB_ENV,	3906	$DB_ENV,
2586	$BDB_ENV_DIR,	3907	$BDBDIR,
2587	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3908	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2588	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3909	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2589	0666;	3910	0666;
2590		3911
2591	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3912	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2592
2593	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2594	$DB_ENV->set_lk_detect;
2595	};	3913	};
2596		3914
2597	cf::cleanup "db_env_open(db): $@" if $@;	3915	cf::cleanup "db_env_open(db): $@" if $@;
2598	};	3916	};
2599	}	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	};
2600	}	3928	}
2601		3929
2602	{	3930	{
		3931	# configure IO::AIO
		3932
2603	IO::AIO::min_parallel 8;	3933	IO::AIO::min_parallel 8;
2604
2605	undef $Coro::AIO::WATCHER;
2606	IO::AIO::max_poll_time $TICK * 0.1;	3934	IO::AIO::max_poll_time $TICK * 0.1;
2607	$AIO_POLL_WATCHER = Event->io (	3935	undef $AnyEvent::AIO::WATCHER;
2608	reentrant => 0,
2609	fd => IO::AIO::poll_fileno,
2610	poll => 'r',
2611	prio => 6,
2612	data => WF_AUTOCANCEL,
2613	cb => \&IO::AIO::poll_cb,
2614	);
2615	}	3936	}
2616		3937
2617	$WRITE_RUNTIME_WATCHER = Event->timer (	3938	my $_log_backtrace;
2618	reentrant => 0,	3939
2619	data => WF_AUTOCANCEL,	3940	sub _log_backtrace {
2620	after => 1,	3941	my ($msg, @addr) = @_;
2621	interval => 10,	3942
2622	prio => 6, # keep it lowest so it acts like a watchdog	3943	$msg =~ s/\n//;
2623	cb => Coro::unblock_sub {	3944
2624	write_runtime	3945	# limit the # of concurrent backtraces
2625	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] $msg\n";
		3976	LOG llevInfo, "[ABT] [suppressed]\n";
2626	},	3977	}
2627	);	3978	}
		3979
		3980	# load additional modules
		3981	require "cf/$_.pm" for @EXTRA_MODULES;
		3982	cf::_connect_to_perl_2;
2628		3983
2629	END { cf::emergency_save }	3984	END { cf::emergency_save }
2630		3985
2631	1	3986	1
2632		3987

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