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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.214 by root, Wed Feb 14 00:40:05 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";
		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(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	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	}
		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($$) {
		405	my ($interval, $cb) = @_;
		406
		407	my $start = rand List::Util::min 180, $interval;
		408
		409	EV::periodic $start, $interval, 0, $cb
		410	}
		411
		412	=item cf::get_slot $time[, $priority[, $name]]
		413
		414	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		415	This call blocks and returns only when you have at least C<$time> seconds
		416	of cpu time till the next tick. The slot is only valid till the next cede.
		417
		418	The optional C<$name> can be used to identify the job to run. It might be
		419	used for statistical purposes and should identify the same time-class.
		420
		421	Useful for short background jobs.
		422
		423	=cut
		424
		425	our @SLOT_QUEUE;
		426	our $SLOT_QUEUE;
		427
		428	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		429	$SLOT_QUEUE = Coro::async {
		430	$Coro::current->desc ("timeslot manager");
		431
		432	my $signal = new Coro::Signal;
		433
		434	while () {
		435	next_job:
		436	my $avail = cf::till_tick;
		437	if ($avail > 0.01) {
		438	for (0 .. $#SLOT_QUEUE) {
		439	if ($SLOT_QUEUE[$_][0] < $avail) {
		440	my $job = splice @SLOT_QUEUE, $_, 1, ();
		441	$job->[2]->send;
		442	Coro::cede;
		443	goto next_job;
		444	}
		445	}
		446	}
		447
		448	if (@SLOT_QUEUE) {
		449	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		450	push @cf::WAIT_FOR_TICK, $signal;
		451	$signal->wait;
		452	} else {
		453	Coro::schedule;
		454	}
278	};	455	}
279	$TICK_WATCHER->stop;	456	};
280	$guard	457
		458	sub get_slot($;$$) {
		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	$sig->wait;
281	}	470	}
282		471
283	=item cf::async { BLOCK }	472	=item cf::async { BLOCK }
284		473
285	Currently the same as Coro::async_pool, meaning you cannot use	474	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		479
291	BEGIN { *async = \&Coro::async_pool }	480	BEGIN { *async = \&Coro::async_pool }
292		481
293	=item cf::sync_job { BLOCK }	482	=item cf::sync_job { BLOCK }
294		483
295	The design of crossfire+ requires that the main coro ($Coro::main) is	484	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	485	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	486	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		487	acceptable.
298		488
299	If it must be done, put the blocking parts into C<sync_job>. This will run	489	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	490	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	491	server will be frozen during this time, so the block should either finish
302	fast or be very important.	492	fast or be very important.
…		…
305		495
306	sub sync_job(&) {	496	sub sync_job(&) {
307	my ($job) = @_;	497	my ($job) = @_;
308		498
309	if ($Coro::current == $Coro::main) {	499	if ($Coro::current == $Coro::main) {
		500	my $time = EV::time;
		501
310	# this is the main coro, too bad, we have to block	502	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	503	# till the operation succeeds, freezing the server :/
312		504
313	# TODO: use suspend/resume instead	505	LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	506
315	my $freeze_guard = freeze_mainloop;	507	my $freeze_guard = freeze_mainloop;
316		508
317	my $busy = 1;	509	my $busy = 1;
318	my @res;	510	my @res;
319		511
320	(async {	512	(async {
		513	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	514	@res = eval { $job->() };
322	warn $@ if $@;	515	warn $@ if $@;
323	undef $busy;	516	undef $busy;
324	})->prio (Coro::PRIO_MAX);	517	})->prio (Coro::PRIO_MAX);
325		518
326	while ($busy) {	519	while ($busy) {
327	Coro::cede or Event::one_event;	520	if (Coro::nready) {
		521	Coro::cede_notself;
		522	} else {
		523	EV::loop EV::LOOP_ONESHOT;
328	}	524	}
		525	}
		526
		527	my $time = EV::time - $time;
		528
		529	$TICK_START += $time; # do not account sync jobs to server load
329		530
330	wantarray ? @res : $res[0]	531	wantarray ? @res : $res[0]
331	} else {	532	} else {
332	# we are in another coroutine, how wonderful, everything just works	533	# we are in another coroutine, how wonderful, everything just works
333		534
…		…
353	$EXT_CORO{$coro+0} = $coro;	554	$EXT_CORO{$coro+0} = $coro;
354		555
355	$coro	556	$coro
356	}	557	}
357		558
358	sub write_runtime {	559	=item fork_call { }, $args
359	my $runtime = cf::localdir . "/runtime";
360		560
361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	561	Executes the given code block with the given arguments in a seperate
362	or return;	562	process, returning the results. Everything must be serialisable with
		563	Coro::Storable. May, of course, block. Note that the executed sub may
		564	never block itself or use any form of event handling.
363		565
364	my $value = $cf::RUNTIME + 90 + 10;	566	=cut
365	# 10 is the runtime save interval, for a monotonic clock
366	# 60 allows for the watchdog to kill the server.
367		567
368	(aio_write $fh, 0, (length $value), $value, 0) <= 0	568	sub fork_call(&@) {
369	and return;	569	my ($cb, @args) = @_;
370		570
371	# always fsync - this file is important	571	# we seemingly have to make a local copy of the whole thing,
372	aio_fsync $fh	572	# otherwise perl prematurely frees the stuff :/
373	and return;	573	# TODO: investigate and fix (likely this will be rather laborious)
374		574
375	close $fh	575	my @res = Coro::Util::fork_eval {
376	or return;	576	reset_signals;
		577	&$cb
		578	}, @args;
377		579
378	aio_rename "$runtime~", $runtime	580	wantarray ? @res : $res[-1]
379	and return;	581	}
380		582
		583	=item $coin = coin_from_name $name
		584
		585	=cut
		586
		587	our %coin_alias = (
		588	"silver" => "silvercoin",
		589	"silvercoin" => "silvercoin",
		590	"silvercoins" => "silvercoin",
		591	"gold" => "goldcoin",
		592	"goldcoin" => "goldcoin",
		593	"goldcoins" => "goldcoin",
		594	"platinum" => "platinacoin",
		595	"platinumcoin" => "platinacoin",
		596	"platinumcoins" => "platinacoin",
		597	"platina" => "platinacoin",
		598	"platinacoin" => "platinacoin",
		599	"platinacoins" => "platinacoin",
		600	"royalty" => "royalty",
		601	"royalties" => "royalty",
		602	);
		603
		604	sub coin_from_name($) {
		605	$coin_alias{$_[0]}
		606	? cf::arch::find $coin_alias{$_[0]}
		607	: undef
		608	}
		609
		610	=item $value = cf::db_get $family => $key
		611
		612	Returns a single value from the environment database.
		613
		614	=item cf::db_put $family => $key => $value
		615
		616	Stores the given C<$value> in the family. It can currently store binary
		617	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		618
		619	=item $db = cf::db_table "name"
		620
		621	Create and/or open a new database table. The string must not be "db" and must be unique
		622	within each server.
		623
		624	=cut
		625
		626	sub db_table($) {
		627	my ($name) = @_;
		628	my $db = BDB::db_create $DB_ENV;
		629
		630	eval {
		631	$db->set_flags (BDB::CHKSUM);
		632
		633	utf8::encode $name;
		634	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		635	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		636	cf::cleanup "db_open(db): $!" if $!;
		637	};
		638	cf::cleanup "db_open(db): $@" if $@;
		639
		640	$db
		641	}
		642
		643	our $DB;
		644
		645	sub db_init {
		646	cf::sync_job {
		647	$DB ||= db_table "db";
		648	};
		649	}
		650
		651	sub db_get($$) {
		652	my $key = "$_[0]/$_[1]";
		653
		654	cf::sync_job {
		655	BDB::db_get $DB, undef, $key, my $data;
		656
		657	$! ? ()
		658	: $data
381	1	659	}
		660	}
		661
		662	sub db_put($$$) {
		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 });
382	}	746	}
383		747
384	=back	748	=back
385		749
386	=cut	750	=cut
387		751
388	#############################################################################	752	#############################################################################
389		753
390	=head2 ATTACHABLE OBJECTS	754	=head2 ATTACHABLE OBJECTS
391		755
392	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
393	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")
394	to it. All such attachable objects support the following methods.	758	to it. All such attachable objects support the following methods.
395		759
396	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>
397	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
398	crossfire+).	762	Deliantra).
399		763
400	=over 4	764	=over 4
401		765
402	=item $attachable->attach ($attachment, key => $value...)	766	=item $attachable->attach ($attachment, key => $value...)
403		767
…		…
447	=item cf::CLASS::attachment $name, ...	811	=item cf::CLASS::attachment $name, ...
448		812
449	Register an attachment by C<$name> through which attachable objects of the	813	Register an attachment by C<$name> through which attachable objects of the
450	given CLASS can refer to this attachment.	814	given CLASS can refer to this attachment.
451		815
452	Some classes such as crossfire maps and objects can specify attachments	816	Some classes such as deliantra maps and objects can specify attachments
453	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.
454		818
455	These calls expect any number of the following handler/hook descriptions:	819	These calls expect any number of the following handler/hook descriptions:
456		820
457	=over 4	821	=over 4
…		…
566	$registry = $CB_TYPE[$object_type] ||= [];	930	$registry = $CB_TYPE[$object_type] ||= [];
567		931
568	} elsif ($type eq "subtype") {	932	} elsif ($type eq "subtype") {
569	defined $object_type or Carp::croak "subtype specified without type";	933	defined $object_type or Carp::croak "subtype specified without type";
570	my $object_subtype = shift @arg;	934	my $object_subtype = shift @arg;
571	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	935	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
572		936
573	} elsif ($type eq "package") {	937	} elsif ($type eq "package") {
574	my $pkg = shift @arg;	938	my $pkg = shift @arg;
575		939
576	while (my ($name, $id) = each %cb_id) {	940	while (my ($name, $id) = each %cb_id) {
…		…
605	_attach $registry, $klass, @attach;	969	_attach $registry, $klass, @attach;
606	}	970	}
607		971
608	$obj->{$name} = \%arg;	972	$obj->{$name} = \%arg;
609	} else {	973	} else {
610	warn "object uses attachment '$name' that is not available, postponing.\n";	974	warn "object uses attachment '$name' which is not available, postponing.\n";
611	}	975	}
612		976
613	$obj->{_attachment}{$name} = undef;	977	$obj->{_attachment}{$name} = undef;
614	}	978	}
615		979
…		…
617	if (ref $_[0]) {	981	if (ref $_[0]) {
618	_object_attach @_;	982	_object_attach @_;
619	} else {	983	} else {
620	_attach shift->_attach_registry, @_;	984	_attach shift->_attach_registry, @_;
621	}	985	}
		986	_recalc_want;
622	};	987	};
623		988
624	# all those should be optimised	989	# all those should be optimised
625	sub cf::attachable::detach {	990	sub cf::attachable::detach {
626	my ($obj, $name) = @_;	991	my ($obj, $name) = @_;
…		…
629	delete $obj->{_attachment}{$name};	994	delete $obj->{_attachment}{$name};
630	reattach ($obj);	995	reattach ($obj);
631	} else {	996	} else {
632	Carp::croak "cannot, currently, detach class attachments";	997	Carp::croak "cannot, currently, detach class attachments";
633	}	998	}
		999	_recalc_want;
634	};	1000	};
635		1001
636	sub cf::attachable::attached {	1002	sub cf::attachable::attached {
637	my ($obj, $name) = @_;	1003	my ($obj, $name) = @_;
638		1004
…		…
653	";	1019	";
654	die if $@;	1020	die if $@;
655	}	1021	}
656		1022
657	our $override;	1023	our $override;
658	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?
659		1025
660	sub override {	1026	sub override {
661	$override = 1;	1027	$override = 1;
662	@invoke_results = ();	1028	@INVOKE_RESULTS = (@_);
663	}	1029	}
664		1030
665	sub do_invoke {	1031	sub do_invoke {
666	my $event = shift;	1032	my $event = shift;
667	my $callbacks = shift;	1033	my $callbacks = shift;
668		1034
669	@invoke_results = ();	1035	@INVOKE_RESULTS = ();
670		1036
671	local $override;	1037	local $override;
672		1038
673	for (@$callbacks) {	1039	for (@$callbacks) {
674	eval { &{$_->[1]} };	1040	eval { &{$_->[1]} };
…		…
683	}	1049	}
684		1050
685	0	1051	0
686	}	1052	}
687		1053
688	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1054	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
689		1055
690	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
691		1057
692	Generate an object-specific event with the given arguments.	1058	Generate an object-specific event with the given arguments.
693		1059
694	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
695	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
696	results (if you must, access C<@cf::invoke_results> directly).	1062	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
697		1063
698	=back	1064	=back
699		1065
700	=cut	1066	=cut
701		1067
702	#############################################################################	1068	#############################################################################
703	# 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, $ob2
		1111	}
704		1112
705	sub reattach {	1113	sub reattach {
706	# basically do the same as instantiate, without calling instantiate	1114	# basically do the same as instantiate, without calling instantiate
707	my ($obj) = @_;	1115	my ($obj) = @_;
708		1116
		1117	# no longer needed after getting rid of delete_package?
709	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
710		1119
711	my $registry = $obj->registry;	1120	my $registry = $obj->registry;
712		1121
713	@$registry = ();	1122	@$registry = ();
714		1123
…		…
729	cf::attachable->attach (	1138	cf::attachable->attach (
730	prio => -1000000,	1139	prio => -1000000,
731	on_instantiate => sub {	1140	on_instantiate => sub {
732	my ($obj, $data) = @_;	1141	my ($obj, $data) = @_;
733		1142
734	$data = from_json $data;	1143	$data = decode_json $data;
735		1144
736	for (@$data) {	1145	for (@$data) {
737	my ($name, $args) = @$_;	1146	my ($name, $args) = @$_;
738		1147
739	$obj->attach ($name, %{$args || {} });	1148	$obj->attach ($name, %{$args || {} });
…		…
755	sub object_freezer_save {	1164	sub object_freezer_save {
756	my ($filename, $rdata, $objs) = @_;	1165	my ($filename, $rdata, $objs) = @_;
757		1166
758	sync_job {	1167	sync_job {
759	if (length $$rdata) {	1168	if (length $$rdata) {
		1169	utf8::decode (my $decname = $filename);
760	warn sprintf "saving %s (%d,%d)\n",	1170	warn sprintf "saving %s (%d,%d)\n",
761	$filename, length $$rdata, scalar @$objs;	1171	$decname, length $$rdata, scalar @$objs;
762		1172
763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1173	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
764	chmod SAVE_MODE, $fh;	1174	aio_chmod $fh, SAVE_MODE;
765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1175	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
766	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	}
767	close $fh;	1180	aio_close $fh;
768		1181
769	if (@$objs) {	1182	if (@$objs) {
770	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) {
771	chmod SAVE_MODE, $fh;	1184	aio_chmod $fh, SAVE_MODE;
772	my $data = Storable::nfreeze { version => 1, objs => $objs };	1185	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
773	aio_write $fh, 0, (length $data), $data, 0;	1186	aio_write $fh, 0, (length $data), $data, 0;
774	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	}
775	close $fh;	1191	aio_close $fh;
776	aio_rename "$filename.pst~", "$filename.pst";	1192	aio_rename "$filename.pst~", "$filename.pst";
777	}	1193	}
778	} else {	1194	} else {
779	aio_unlink "$filename.pst";	1195	aio_unlink "$filename.pst";
780	}	1196	}
781		1197
782	aio_rename "$filename~", $filename;	1198	aio_rename "$filename~", $filename;
		1199
		1200	$filename =~ s%/[^/]+$%%;
		1201	aio_pathsync $filename if $cf::USE_FSYNC;
783	} else {	1202	} else {
784	warn "FATAL: $filename~: $!\n";	1203	warn "unable to save objects: $filename~: $!\n";
785	}	1204	}
786	} else {	1205	} else {
787	aio_unlink $filename;	1206	aio_unlink $filename;
788	aio_unlink "$filename.pst";	1207	aio_unlink "$filename.pst";
789	}	1208	}
790
791	#d##TODO# nuke non .map-files if exist
792	if ($filename =~ s/\.map$//) {
793	aio_unlink $filename;
794	aio_unlink "$filename.pst";
795	}
796	}	1209	};
797	}	1210	}
798		1211
799	sub object_freezer_as_string {	1212	sub object_freezer_as_string {
800	my ($rdata, $objs) = @_;	1213	my ($rdata, $objs) = @_;
801		1214
…		…
806		1219
807	sub object_thawer_load {	1220	sub object_thawer_load {
808	my ($filename) = @_;	1221	my ($filename) = @_;
809		1222
810	my ($data, $av);	1223	my ($data, $av);
811
812	#d#TODO remove .map if file does not exist
813	aio_stat $filename and $filename =~ s/\.map$//;
814		1224
815	(aio_load $filename, $data) >= 0	1225	(aio_load $filename, $data) >= 0
816	or return;	1226	or return;
817		1227
818	unless (aio_stat "$filename.pst") {	1228	unless (aio_stat "$filename.pst") {
819	(aio_load "$filename.pst", $av) >= 0	1229	(aio_load "$filename.pst", $av) >= 0
820	or return;	1230	or return;
		1231
821	$av = eval { (Storable::thaw $av)->{objs} };	1232	my $st = eval { Coro::Storable::thaw $av };
		1233	$av = $st->{objs};
822	}	1234	}
823		1235
		1236	utf8::decode (my $decname = $filename);
824	warn sprintf "loading %s (%d)\n",	1237	warn sprintf "loading %s (%d,%d)\n",
825	$filename, length $data, scalar @{$av || []};#d#	1238	$decname, length $data, scalar @{$av || []};
		1239
826	return ($data, $av);	1240	($data, $av)
827	}	1241	}
		1242
		1243	=head2 COMMAND CALLBACKS
		1244
		1245	=over 4
		1246
		1247	=cut
828		1248
829	#############################################################################	1249	#############################################################################
830	# command handling &c	1250	# command handling &c
831		1251
832	=item cf::register_command $name => \&callback($ob,$args);	1252	=item cf::register_command $name => \&callback($ob,$args);
…		…
845	push @{ $COMMAND{$name} }, [$caller, $cb];	1265	push @{ $COMMAND{$name} }, [$caller, $cb];
846	}	1266	}
847		1267
848	=item cf::register_extcmd $name => \&callback($pl,$packet);	1268	=item cf::register_extcmd $name => \&callback($pl,$packet);
849		1269
850	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.
851		1275
852	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
853	called.	1277	called.
854		1278
		1279	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1280
		1281	Register a callback for execution when the client sends an (asynchronous)
		1282	exticmd packet. Exti commands are processed by the server as soon as they
		1283	are received, i.e. out of order w.r.t. other commands. The first argument
		1284	is a client socket. Exti commands can be received anytime, even before
		1285	log-in.
		1286
		1287	If the callback returns something, it is sent back as if reply was being
		1288	called.
		1289
855	=cut	1290	=cut
856		1291
857	sub register_extcmd {	1292	sub register_extcmd {
858	my ($name, $cb) = @_;	1293	my ($name, $cb) = @_;
859		1294
860	$EXTCMD{$name} = $cb;	1295	$EXTCMD{$name} = $cb;
861	}	1296	}
		1297
		1298	sub register_exticmd {
		1299	my ($name, $cb) = @_;
		1300
		1301	$EXTICMD{$name} = $cb;
		1302	}
		1303
		1304	use File::Glob ();
862		1305
863	cf::player->attach (	1306	cf::player->attach (
864	on_command => sub {	1307	on_command => sub {
865	my ($pl, $name, $params) = @_;	1308	my ($pl, $name, $params) = @_;
866		1309
…		…
874	cf::override;	1317	cf::override;
875	},	1318	},
876	on_extcmd => sub {	1319	on_extcmd => sub {
877	my ($pl, $buf) = @_;	1320	my ($pl, $buf) = @_;
878		1321
879	my $msg = eval { from_json $buf };	1322	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
880		1323
881	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
882	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1332	if (my $cb = $EXTCMD{$type}) {
883	if (my %reply = $cb->($pl, $msg)) {	1333	@reply = $cb->($pl, @payload);
884	$pl->ext_reply ($msg->{msgid}, %reply);
885	}
886	}	1334	}
		1335
		1336	$pl->ext_reply ($reply, @reply)
		1337	if $reply;
		1338
887	} else {	1339	} else {
888	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1340	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
889	}	1341	}
890		1342
891	cf::override;	1343	cf::override;
892	},	1344	},
893	);	1345	);
894		1346
		1347	# "readahead" all extensions
895	sub load_extension {	1348	sub cache_extensions {
896	my ($path) = @_;	1349	my $grp = IO::AIO::aio_group;
897		1350
898	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1351	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
899	my $base = $1;	1352	for (grep /\.ext$/, @{$_[0]}) {
900	my $pkg = $1;	1353	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
901	$pkg =~ s/[^[:word:]]/_/g;
902	$pkg = "ext::$pkg";
903
904	warn "... loading '$path' into '$pkg'\n";
905
906	open my $fh, "<:utf8", $path
907	or die "$path: $!";
908
909	my $source =
910	"package $pkg; use strict; use utf8;\n"
911	. "#line 1 \"$path\"\n{\n"
912	. (do { local $/; <$fh> })
913	. "\n};\n1";
914
915	unless (eval $source) {
916	my $msg = $@ ? "$path: $@\n"
917	: "extension disabled.\n";
918	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
919	warn $@;
920	warn "mandatory extension failed to load, exiting.\n";
921	exit 1;
922	}	1354	}
923	die $@;
924	}	1355	};
925		1356
926	push @EXTS, $pkg;	1357	$grp
927	}	1358	}
928		1359
929	sub load_extensions {	1360	sub load_extensions {
		1361	cf::sync_job {
		1362	my %todo;
		1363
930	for my $ext (<$LIBDIR/*.ext>) {	1364	for my $path (<$LIBDIR/*.ext>) {
931	next unless -r $ext;	1365	next unless -r $path;
932	eval {	1366
933	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	$progress = 1;
934	1	1423	}
935	} or warn "$ext not loaded: $@";	1424
		1425	skip:
		1426	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1427	unless $progress;
		1428	}
936	}	1429	};
937	}	1430	}
938		1431
939	#############################################################################	1432	#############################################################################
940		1433
		1434	=back
		1435
941	=head2 CORE EXTENSIONS	1436	=head2 CORE EXTENSIONS
942		1437
943	Functions and methods that extend core crossfire objects.	1438	Functions and methods that extend core deliantra objects.
944		1439
945	=cut	1440	=cut
946		1441
947	package cf::player;	1442	package cf::player;
948		1443
…		…
950		1445
951	=head3 cf::player	1446	=head3 cf::player
952		1447
953	=over 4	1448	=over 4
954		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
955	=item cf::player::find $login	1464	=item cf::player::find $login
956		1465
957	Returns the given player object, loading it if necessary (might block).	1466	Returns the given player object, loading it if necessary (might block).
958		1467
959	=cut	1468	=cut
960		1469
961	sub playerdir($) {	1470	sub playerdir($) {
962	cf::localdir	1471	"$PLAYERDIR/"
963	. "/"
964	. cf::playerdir
965	. "/"
966	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1472	. (ref $_[0] ? $_[0]->ob->name : $_[0])
967	}	1473	}
968		1474
969	sub path($) {	1475	sub path($) {
970	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1476	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
971		1477
972	(playerdir $login) . "/$login.pl"	1478	(playerdir $login) . "/playerdata"
973	}	1479	}
974		1480
975	sub find_active($) {	1481	sub find_active($) {
976	$cf::PLAYER{$_[0]}	1482	$cf::PLAYER{$_[0]}
977	and $cf::PLAYER{$_[0]}->active	1483	and $cf::PLAYER{$_[0]}->active
…		…
980		1486
981	sub exists($) {	1487	sub exists($) {
982	my ($login) = @_;	1488	my ($login) = @_;
983		1489
984	$cf::PLAYER{$login}	1490	$cf::PLAYER{$login}
985	or cf::sync_job { !aio_stat path $login }	1491	or !aio_stat path $login
986	}	1492	}
987		1493
988	sub find($) {	1494	sub find($) {
989	return $cf::PLAYER{$_[0]} || do {	1495	return $cf::PLAYER{$_[0]} || do {
990	my $login = $_[0];	1496	my $login = $_[0];
991		1497
992	my $guard = cf::lock_acquire "user_find:$login";	1498	my $guard = cf::lock_acquire "user_find:$login";
993		1499
994	$cf::PLAYER{$_[0]} || do {	1500	$cf::PLAYER{$_[0]} || do {
995	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
996	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;
997	$cf::PLAYER{$login} = $pl	1516	$cf::PLAYER{$login} = $pl
998	}	1517	}
999	}	1518	}
1000	}	1519	}
1001		1520
…		…
1010	return if $pl->{deny_save};	1529	return if $pl->{deny_save};
1011		1530
1012	aio_mkdir playerdir $pl, 0770;	1531	aio_mkdir playerdir $pl, 0770;
1013	$pl->{last_save} = $cf::RUNTIME;	1532	$pl->{last_save} = $cf::RUNTIME;
1014		1533
		1534	cf::get_slot 0.01;
		1535
1015	$pl->save_pl ($path);	1536	$pl->save_pl ($path);
1016	Coro::cede;	1537	cf::cede_to_tick;
1017	}	1538	}
1018		1539
1019	sub new($) {	1540	sub new($) {
1020	my ($login) = @_;	1541	my ($login) = @_;
1021		1542
…		…
1027	$cf::PLAYER{$login} = $self;	1548	$cf::PLAYER{$login} = $self;
1028		1549
1029	$self	1550	$self
1030	}	1551	}
1031		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
1032	=item $pl->quit_character	1563	=item $pl->quit_character
1033		1564
1034	Nukes the player without looking back. If logged in, the connection will	1565	Nukes the player without looking back. If logged in, the connection will
1035	be destroyed. May block for a long time.	1566	be destroyed. May block for a long time.
1036		1567
1037	=cut	1568	=cut
1038		1569
1039	sub quit_character {	1570	sub quit_character {
1040	my ($pl) = @_;	1571	my ($pl) = @_;
1041		1572
		1573	my $name = $pl->ob->name;
		1574
1042	$pl->{deny_save} = 1;	1575	$pl->{deny_save} = 1;
1043	$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
1044		1577
1045	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1578	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1046	$pl->deactivate;	1579	$pl->deactivate;
		1580	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1581	$pl->ob->check_score;
1047	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1582	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1048	$pl->ns->destroy if $pl->ns;	1583	$pl->ns->destroy if $pl->ns;
1049		1584
1050	my $path = playerdir $pl;	1585	my $path = playerdir $pl;
1051	my $temp = "$path~$cf::RUNTIME~deleting~";	1586	my $temp = "$path~$cf::RUNTIME~deleting~";
1052	aio_rename $path, $temp;	1587	aio_rename $path, $temp;
1053	delete $cf::PLAYER{$pl->ob->name};	1588	delete $cf::PLAYER{$pl->ob->name};
1054	$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
1055	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;
1056	}	1611	}
1057		1612
1058	=item cf::player::list_logins	1613	=item cf::player::list_logins
1059		1614
1060	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
1061	while and may block, so not sync_job-capable, ever.	1616	while and may block, so not sync_job-capable, ever.
1062		1617
1063	=cut	1618	=cut
1064		1619
1065	sub list_logins {	1620	sub list_logins {
1066	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1621	my $dirs = aio_readdir $PLAYERDIR
1067	or return [];	1622	or return [];
1068		1623
1069	my @logins;	1624	my @logins;
1070		1625
1071	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") {
1072	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1632	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1073	aio_read $fh, 0, 512, my $buf, 0 or next;	1633	aio_read $fh, 0, 512, my $buf, 0 or next;
1074	$buf !~ /^password -------------$/m or next; # official not-valid tag	1634	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1635	}
1075		1636
1076	utf8::decode $login;	1637	utf8::decode $login;
1077	push @logins, $login;	1638	push @logins, $login;
1078	}	1639	}
1079		1640
…		…
1106	}	1667	}
1107		1668
1108	\@paths	1669	\@paths
1109	}	1670	}
1110		1671
		1672	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1673
		1674	Expand deliantra pod fragments into protocol xml.
		1675
1111	=item $player->ext_reply ($msgid, $msgtype, %msg)	1676	=item $player->ext_reply ($msgid, @msg)
1112		1677
1113	Sends an ext reply to the player.	1678	Sends an ext reply to the player.
1114		1679
1115	=cut	1680	=cut
1116		1681
1117	sub ext_reply($$$%) {	1682	sub ext_reply($$@) {
1118	my ($self, $id, %msg) = @_;	1683	my ($self, $id, @msg) = @_;
1119		1684
1120	$msg{msgid} = $id;	1685	$self->ns->ext_reply ($id, @msg)
1121
1122	$self->send ("ext " . cf::to_json \%msg);
1123	}	1686	}
1124		1687
1125	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	}
1126		1728
1127	=back	1729	=back
1128
1129		1730
1130	=head3 cf::map	1731	=head3 cf::map
1131		1732
1132	=over 4	1733	=over 4
1133		1734
…		…
1145	our $MAX_RESET = 3600;	1746	our $MAX_RESET = 3600;
1146	our $DEFAULT_RESET = 3000;	1747	our $DEFAULT_RESET = 3000;
1147		1748
1148	sub generate_random_map {	1749	sub generate_random_map {
1149	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
1150	# mit "rum" bekleckern, nicht	1754	# mit "rum" bekleckern, nicht
1151	$self->_create_random_map (	1755	$self->_create_random_map (
1152	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1756	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1153	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1757	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1154	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1758	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1188	my ($self, $merge) = @_;	1792	my ($self, $merge) = @_;
1189		1793
1190	# we have to keep some variables in memory intact	1794	# we have to keep some variables in memory intact
1191	local $self->{path};	1795	local $self->{path};
1192	local $self->{load_path};	1796	local $self->{load_path};
1193	local $self->{deny_save};
1194	local $self->{deny_reset};
1195		1797
1196	$self->SUPER::thawer_merge ($merge);	1798	$self->SUPER::thawer_merge ($merge);
1197	}	1799	}
1198		1800
1199	sub normalise {	1801	sub normalise {
…		…
1246	$self->init; # pass $1 etc.	1848	$self->init; # pass $1 etc.
1247	return $self;	1849	return $self;
1248	}	1850	}
1249	}	1851	}
1250		1852
1251	Carp::carp "unable to resolve path '$path' (base '$base').";	1853	Carp::cluck "unable to resolve path '$path' (base '$base').";
1252	()	1854	()
1253	}	1855	}
1254		1856
1255	sub init {	1857	sub init {
1256	my ($self) = @_;	1858	my ($self) = @_;
…		…
1271		1873
1272	# the original (read-only) location	1874	# the original (read-only) location
1273	sub load_path {	1875	sub load_path {
1274	my ($self) = @_;	1876	my ($self) = @_;
1275		1877
1276	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1878	"$MAPDIR/$self->{path}.map"
1277	}	1879	}
1278		1880
1279	# the temporary/swap location	1881	# the temporary/swap location
1280	sub save_path {	1882	sub save_path {
1281	my ($self) = @_;	1883	my ($self) = @_;
1282		1884
1283	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1885	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1284	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1886	"$TMPDIR/$path.map"
1285	}	1887	}
1286		1888
1287	# the unique path, undef == no special unique path	1889	# the unique path, undef == no special unique path
1288	sub uniq_path {	1890	sub uniq_path {
1289	my ($self) = @_;	1891	my ($self) = @_;
1290		1892
1291	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1292	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1894	"$UNIQUEDIR/$path"
1293	}	1895	}
1294		1896
1295	# and all this just because we cannot iterate over	1897	sub decay_objects {
1296	# all maps in C++...
1297	sub change_all_map_light {
1298	my ($change) = @_;	1898	my ($self) = @_;
1299		1899
1300	$_->change_map_light ($change)	1900	return if $self->{deny_reset};
1301	for grep $_->outdoor, values %cf::MAP;	1901
		1902	$self->do_decay_objects;
1302	}	1903	}
1303		1904
1304	sub unlink_save {	1905	sub unlink_save {
1305	my ($self) = @_;	1906	my ($self) = @_;
1306		1907
1307	utf8::encode (my $save = $self->save_path);	1908	utf8::encode (my $save = $self->save_path);
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1909	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1309	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1310
1311	#d#TODO remove .map and also nuke
1312	$save =~ s/\.map// or return;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1314	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1315	}	1911	}
1316		1912
1317	sub load_header_from($) {	1913	sub load_header_from($) {
1318	my ($self, $path) = @_;	1914	my ($self, $path) = @_;
1319		1915
1320	utf8::encode $path;	1916	utf8::encode $path;
1321	#aio_open $path, O_RDONLY, 0	1917	my $f = new_from_file cf::object::thawer $path
1322	# or return;
1323
1324	$self->_load_header ($path)
1325	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;
1326		1925
1327	$self->{load_path} = $path;	1926	$self->{load_path} = $path;
1328		1927
1329	1	1928	1
1330	}	1929	}
…		…
1369	$self->load_header_orig	1968	$self->load_header_orig
1370	or return;	1969	or return;
1371	$self->prepare_orig;	1970	$self->prepare_orig;
1372	}	1971	}
1373		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
1374	1	1979	1
1375	}	1980	}
1376		1981
1377	sub find;	1982	sub find;
1378	sub find {	1983	sub find {
1379	my ($path, $origin) = @_;	1984	my ($path, $origin) = @_;
1380		1985
1381	$path = normalise $path, $origin && $origin->path;	1986	$path = normalise $path, $origin && $origin->path;
1382		1987
		1988	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1383	cf::lock_wait "map_find:$path";	1989	my $guard2 = cf::lock_acquire "map_find:$path";
1384		1990
1385	$cf::MAP{$path} || do {	1991	$cf::MAP{$path} || do {
1386	my $guard = cf::lock_acquire "map_find:$path";
1387	my $map = new_from_path cf::map $path	1992	my $map = new_from_path cf::map $path
1388	or return;	1993	or return;
1389		1994
1390	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1391		1996
1392	$map->load_header	1997	$map->load_header
1393	or return;	1998	or return;
1394		1999
1395	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1396	# doing this can freeze the server in a sync job, obviously	2001	# doing this can freeze the server in a sync job, obviously
1397	#$cf::WAIT_FOR_TICK->wait;	2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard2;
		2004	undef $guard1;
1398	$map->reset;	2005	$map->reset;
1399	undef $guard;
1400	return find $path;	2006	return find $path;
1401	}	2007	}
1402		2008
1403	$cf::MAP{$path} = $map	2009	$cf::MAP{$path} = $map
1404	}	2010	}
…		…
1411	my ($self) = @_;	2017	my ($self) = @_;
1412		2018
1413	local $self->{deny_reset} = 1; # loading can take a long time	2019	local $self->{deny_reset} = 1; # loading can take a long time
1414		2020
1415	my $path = $self->{path};	2021	my $path = $self->{path};
		2022
		2023	{
1416	my $guard = cf::lock_acquire "map_load:$path";	2024	my $guard = cf::lock_acquire "map_data:$path";
1417		2025
		2026	return unless $self->valid;
1418	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1419		2028
1420	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1421		2030
1422	$self->alloc;	2031	$self->alloc;
1423		2032
1424	$self->pre_load;	2033	$self->pre_load;
		2034	cf::cede_to_tick;
1425		2035
1426	$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)
1427	or return;	2039	or return;
1428		2040
1429	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->post_load_original
1430	if delete $self->{load_original};	2042	if delete $self->{load_original};
1431		2043
1432	if (my $uniq = $self->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1433	utf8::encode $uniq;	2045	utf8::encode $uniq;
1434	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1435	$self->clear_unique_items;	2048	$self->clear_unique_items;
1436	$self->_load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1437	}	2052	}
1438	}	2053	}
1439		2054
1440	Coro::cede;	2055	$f->resolve_delayed_derefs;
1441		2056
		2057	cf::cede_to_tick;
1442	# now do the right thing for maps	2058	# now do the right thing for maps
1443	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1444
1445	unless ($self->{deny_activate}) {
1446	$self->decay_objects;
1447	$self->fix_auto_apply;
1448	$self->update_buttons;
1449	Coro::cede;
1450	$self->set_darkness_map;
1451	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1452	unless $self->difficulty;	2061	unless $self->difficulty;
1453	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;
1454	$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);
1455	}	2076	}
1456		2077
1457	$self->post_load;	2078	$self->post_load;
1458
1459	$self->in_memory (cf::MAP_IN_MEMORY);
1460	}	2079	}
1461		2080
1462	sub customise_for {	2081	sub customise_for {
1463	my ($self, $ob) = @_;	2082	my ($self, $ob) = @_;
1464		2083
1465	return find "~" . $ob->name . "/" . $self->{path}	2084	return find "~" . $ob->name . "/" . $self->{path}
1466	if $self->per_player;	2085	if $self->per_player;
1467		2086
		2087	# return find "?party/" . $ob->name . "/" . $self->{path}
		2088	# if $self->per_party;
		2089
1468	$self	2090	$self
1469	}	2091	}
1470		2092
1471	# 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
1472	sub load_diag {	2094	sub load_neighbours {
1473	my ($map) = @_;	2095	my ($map) = @_;
1474		2096
1475	my @diag; # diagonal neighbours	2097	my @neigh; # diagonal neighbours
1476		2098
1477	for (0 .. 3) {	2099	for (0 .. 3) {
1478	my $neigh = $map->tile_path ($_)	2100	my $neigh = $map->tile_path ($_)
1479	or next;	2101	or next;
1480	$neigh = find $neigh, $map	2102	$neigh = find $neigh, $map
1481	or next;	2103	or next;
1482	$neigh->load;	2104	$neigh->load;
1483		2105
		2106	push @neigh,
1484	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2107	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1485	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2108	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1486	}	2109	}
1487		2110
1488	for (@diag) {	2111	for (grep defined $_->[0], @neigh) {
		2112	my ($path, $origin) = @$_;
1489	my $neigh = find @$_	2113	my $neigh = find $path, $origin
1490	or next;	2114	or next;
1491	$neigh->load;	2115	$neigh->load;
1492	}	2116	}
1493	}	2117	}
1494		2118
…		…
1499	}	2123	}
1500		2124
1501	sub do_load_sync {	2125	sub do_load_sync {
1502	my ($map) = @_;	2126	my ($map) = @_;
1503		2127
		2128	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2129	if $Coro::current == $Coro::main;
		2130
1504	cf::sync_job { $map->load };	2131	cf::sync_job { $map->load };
1505	}	2132	}
1506		2133
1507	our %MAP_PREFETCH;	2134	our %MAP_PREFETCH;
1508	our $MAP_PREFETCHER = undef;	2135	our $MAP_PREFETCHER = undef;
1509		2136
1510	sub find_async {	2137	sub find_async {
1511	my ($path, $origin) = @_;	2138	my ($path, $origin, $load) = @_;
1512		2139
1513	$path = normalise $path, $origin && $origin->{path};	2140	$path = normalise $path, $origin && $origin->{path};
1514		2141
1515	if (my $map = $cf::MAP{$path}) {	2142	if (my $map = $cf::MAP{$path}) {
1516	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2143	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1517	}	2144	}
1518		2145
1519	undef $MAP_PREFETCH{$path};	2146	$MAP_PREFETCH{$path} |= $load;
		2147
1520	$MAP_PREFETCHER ||= cf::async {	2148	$MAP_PREFETCHER ||= cf::async {
		2149	$Coro::current->{desc} = "map prefetcher";
		2150
1521	while (%MAP_PREFETCH) {	2151	while (%MAP_PREFETCH) {
1522	for my $path (keys %MAP_PREFETCH) {	2152	while (my ($k, $v) = each %MAP_PREFETCH) {
1523	my $map = find $path	2153	if (my $map = find $k) {
1524	or next;
1525	$map->load;	2154	$map->load if $v;
		2155	}
1526		2156
1527	delete $MAP_PREFETCH{$path};	2157	delete $MAP_PREFETCH{$k};
1528	}	2158	}
1529	}	2159	}
1530	undef $MAP_PREFETCHER;	2160	undef $MAP_PREFETCHER;
1531	};	2161	};
1532	$MAP_PREFETCHER->prio (6);	2162	$MAP_PREFETCHER->prio (6);
…		…
1535	}	2165	}
1536		2166
1537	sub save {	2167	sub save {
1538	my ($self) = @_;	2168	my ($self) = @_;
1539		2169
1540	my $lock = cf::lock_acquire "map_data:" . $self->path;	2170	my $lock = cf::lock_acquire "map_data:$self->{path}";
1541		2171
1542	$self->{last_save} = $cf::RUNTIME;	2172	$self->{last_save} = $cf::RUNTIME;
1543		2173
1544	return unless $self->dirty;	2174	return unless $self->dirty;
1545		2175
…		…
1551	return if $self->{deny_save};	2181	return if $self->{deny_save};
1552		2182
1553	local $self->{last_access} = $self->last_access;#d#	2183	local $self->{last_access} = $self->last_access;#d#
1554		2184
1555	cf::async {	2185	cf::async {
		2186	$Coro::current->{desc} = "map player save";
1556	$_->contr->save for $self->players;	2187	$_->contr->save for $self->players;
1557	};	2188	};
		2189
		2190	cf::get_slot 0.02;
1558		2191
1559	if ($uniq) {	2192	if ($uniq) {
1560	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1561	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1562	} else {	2195	} else {
…		…
1568	my ($self) = @_;	2201	my ($self) = @_;
1569		2202
1570	# save first because save cedes	2203	# save first because save cedes
1571	$self->save;	2204	$self->save;
1572		2205
1573	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1574		2207
1575	return if $self->players;	2208	return if $self->players;
1576	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_ACTIVE;
1577	return if $self->{deny_save};	2210	return if $self->{deny_save};
1578		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1579	$self->clear;	2216	$self->clear;
1580	$self->in_memory (cf::MAP_SWAPPED);
1581	}	2217	}
1582		2218
1583	sub reset_at {	2219	sub reset_at {
1584	my ($self) = @_;	2220	my ($self) = @_;
1585		2221
1586	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1587	return 1e99 if $self->isa ("ext::map_per_player");#d#
1588	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1589		2224
1590	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1591	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;
1592		2227
…		…
1603	my ($self) = @_;	2238	my ($self) = @_;
1604		2239
1605	my $lock = cf::lock_acquire "map_data:$self->{path}";	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2241
1607	return if $self->players;	2242	return if $self->players;
1608	return if $self->isa ("ext::map_per_player");#d#
1609		2243
1610	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path, "\n";
1611		2245
1612	$self->in_memory (cf::MAP_SWAPPED);	2246	$self->in_memory (cf::MAP_SWAPPED);
1613		2247
1614	# need to save uniques path	2248	# need to save uniques path
1615	unless ($self->{deny_save}) {	2249	unless ($self->{deny_save}) {
…		…
1619	if $uniq;	2253	if $uniq;
1620	}	2254	}
1621		2255
1622	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1623		2257
		2258	$self->deactivate;
		2259	$_->clear_links_to ($self) for values %cf::MAP;
1624	$self->clear;	2260	$self->clear;
1625
1626	$_->clear_links_to ($self) for values %cf::MAP;
1627		2261
1628	$self->unlink_save;	2262	$self->unlink_save;
1629	$self->destroy;	2263	$self->destroy;
1630	}	2264	}
1631		2265
1632	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1633		2267
1634	sub nuke {	2268	sub nuke {
1635	my ($self) = @_;	2269	my ($self) = @_;
1636		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
1637	delete $cf::MAP{$self->path};	2274	delete $cf::MAP{$self->path};
1638		2275
1639	$self->unlink_save;	2276	$self->unlink_save;
1640		2277
1641	bless $self, "cf::map";	2278	bless $self, "cf::map";
1642	delete $self->{deny_reset};	2279	delete $self->{deny_reset};
1643	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1644	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1645	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1646		2283
1647	$cf::MAP{$self->path} = $self;	2284	$cf::MAP{$self->path} = $self;
		2285	}
1648		2286
1649	$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	]
1650	}	2324	}
1651		2325
1652	=item cf::map::unique_maps	2326	=item cf::map::unique_maps
1653		2327
1654	Returns an arrayref of paths of all shared maps that have	2328	Returns an arrayref of paths of all shared maps that have
1655	instantiated unique items. May block.	2329	instantiated unique items. May block.
1656		2330
1657	=cut	2331	=cut
1658		2332
1659	sub unique_maps() {	2333	sub unique_maps() {
1660	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2334	[
1661	or return;	2335	map {
1662
1663	my @paths;
1664
1665	for (@$files) {
1666	utf8::decode $_;	2336	utf8::decode $_;
1667	next if /\.pst$/;	2337	s/\.map$//; # TODO future compatibility hack
1668	next unless /^$PATH_SEP/o;	2338	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1669		2339	? ()
1670	push @paths, cf::map::normalise $_;	2340	: normalise $_
		2341	} @{ aio_readdir $UNIQUEDIR or [] }
1671	}	2342	]
1672
1673	\@paths
1674	}	2343	}
1675
1676	package cf;
1677		2344
1678	=back	2345	=back
1679		2346
1680	=head3 cf::object	2347	=head3 cf::object
1681		2348
…		…
1685		2352
1686	=over 4	2353	=over 4
1687		2354
1688	=item $ob->inv_recursive	2355	=item $ob->inv_recursive
1689		2356
1690	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.
1691		2359
1692	=cut	2360	=cut
1693		2361
1694	sub inv_recursive_;	2362	sub inv_recursive_;
1695	sub inv_recursive_ {	2363	sub inv_recursive_ {
…		…
1698		2366
1699	sub inv_recursive {	2367	sub inv_recursive {
1700	inv_recursive_ inv $_[0]	2368	inv_recursive_ inv $_[0]
1701	}	2369	}
1702		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
1703	package cf;	2399	package cf;
1704		2400
1705	=back	2401	=back
1706		2402
1707	=head3 cf::object::player	2403	=head3 cf::object::player
…		…
1713	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>
1714	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
1715	dialogue with the given NPC character.	2411	dialogue with the given NPC character.
1716		2412
1717	=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	};
1718		2428
1719	# rough implementation of a future "reply" method that works	2429	# rough implementation of a future "reply" method that works
1720	# with dialog boxes.	2430	# with dialog boxes.
1721	#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
1722	sub cf::object::player::reply($$$;$) {	2432	sub cf::object::player::reply($$$;$) {
…		…
1724		2434
1725	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1726		2436
1727	if ($self->{record_replies}) {	2437	if ($self->{record_replies}) {
1728	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2439
1729	} 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 {
1730	$msg = $npc->name . " says: $msg" if $npc;	2448	$msg = $npc->name . " says: $msg" if $npc;
1731	$self->message ($msg, $flags);	2449	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2450	}
1732	}	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 (@_);
1733	}	2462	}
1734		2463
1735	=item $player_object->may ("access")	2464	=item $player_object->may ("access")
1736		2465
1737	Returns wether the given player is authorized to access resource "access"	2466	Returns wether the given player is authorized to access resource "access"
…		…
1750		2479
1751	=item $player_object->enter_link	2480	=item $player_object->enter_link
1752		2481
1753	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}>).
1754		2483
1755	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.
1756	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.
1757		2488
1758	Will never block.	2489	Will never block.
1759		2490
1760	=item $player_object->leave_link ($map, $x, $y)	2491	=item $player_object->leave_link ($map, $x, $y)
1761		2492
…		…
1784	$self->deactivate_recursive;	2515	$self->deactivate_recursive;
1785		2516
1786	return if UNIVERSAL::isa $self->map, "ext::map_link";	2517	return if UNIVERSAL::isa $self->map, "ext::map_link";
1787		2518
1788	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1789	if $self->map;	2520	if $self->map && $self->map->{path} ne "{link}";
1790		2521
1791	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2522	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1792	}	2523	}
1793		2524
1794	sub cf::object::player::leave_link {	2525	sub cf::object::player::leave_link {
1795	my ($self, $map, $x, $y) = @_;	2526	my ($self, $map, $x, $y) = @_;
		2527
		2528	return unless $self->contr->active;
1796		2529
1797	my $link_pos = delete $self->{_link_pos};	2530	my $link_pos = delete $self->{_link_pos};
1798		2531
1799	unless ($map) {	2532	unless ($map) {
1800	# restore original map position	2533	# restore original map position
…		…
1814	# use -1 or undef as default coordinates, not 0, 0	2547	# use -1 or undef as default coordinates, not 0, 0
1815	($x, $y) = ($map->enter_x, $map->enter_y)	2548	($x, $y) = ($map->enter_x, $map->enter_y)
1816	if $x <=0 && $y <= 0;	2549	if $x <=0 && $y <= 0;
1817		2550
1818	$map->load;	2551	$map->load;
1819	$map->load_diag;	2552	$map->load_neighbours;
1820		2553
1821	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
1822	$self->activate_recursive;	2560	$self->activate_recursive;
1823	$self->enter_map ($map, $x, $y);
1824	}	2561	}
1825		2562
1826	cf::player->attach (	2563	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1827	on_logout => sub {
1828	my ($pl) = @_;
1829		2564
1830	# abort map switching before logout	2565	Moves the player to the given map-path and coordinates by first freezing
1831	if ($pl->ob->{_link_pos}) {	2566	her, loading and preparing them map, calling the provided $check callback
1832	cf::sync_job {	2567	that has to return the map if sucecssful, and then unfreezes the player on
1833	$pl->ob->leave_link	2568	the new (success) or old (failed) map position. In either case, $done will
1834	};	2569	be called at the end of this process.
1835	}
1836	},
1837	on_login => sub {
1838	my ($pl) = @_;
1839		2570
1840	# try to abort aborted map switching on player login :)	2571	Note that $check will be called with a potentially non-loaded map, so if
1841	# should happen only on crashes	2572	it needs a loaded map it has to call C<< ->load >>.
1842	if ($pl->ob->{_link_pos}) {
1843	$pl->ob->enter_link;
1844	(async {
1845	# we need this sleep as the login has a concurrent enter_exit running
1846	# and this sleep increases chances of the player not ending up in scorn
1847	$pl->ob->reply (undef,
1848	"There was an internal problem at your last logout, "
1849	. "the server will try to bring you to your intended destination in a second.",
1850	cf::NDI_RED);
1851	Coro::Timer::sleep 1;
1852	$pl->ob->leave_link;
1853	})->prio (2);
1854	}
1855	},
1856	);
1857		2573
1858	=item $player_object->goto ($path, $x, $y)
1859
1860	=cut	2574	=cut
		2575
		2576	our $GOTOGEN;
1861		2577
1862	sub cf::object::player::goto {	2578	sub cf::object::player::goto {
1863	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;
1864		2583
1865	$self->enter_link;	2584	$self->enter_link;
1866		2585
1867	(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
1868	my $map = eval {	2608	my $map = eval {
1869	my $map = cf::map::find $path;	2609	my $map = defined $path ? cf::map::find $path : undef;
		2610
		2611	if ($map) {
1870	$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
1871	$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 $@;
1872	} or	2624	}
1873	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1874		2625
		2626	if ($gen == $self->{_goto_generation}) {
		2627	delete $self->{_goto_generation};
1875	$self->leave_link ($map, $x, $y);	2628	$self->leave_link ($map, $x, $y);
		2629	}
		2630
		2631	$done->() if $done;
1876	})->prio (1);	2632	})->prio (1);
1877	}	2633	}
1878		2634
1879	=item $player_object->enter_exit ($exit_object)	2635	=item $player_object->enter_exit ($exit_object)
1880		2636
…		…
1900	}	2656	}
1901		2657
1902	sub prepare_random_map {	2658	sub prepare_random_map {
1903	my ($exit) = @_;	2659	my ($exit) = @_;
1904		2660
1905	my $guard = cf::lock_acquire "exit_prepare:$exit";
1906
1907	# all this does is basically replace the /! path by	2661	# all this does is basically replace the /! path by
1908	# a new random map path (?random/...) with a seed	2662	# a new random map path (?random/...) with a seed
1909	# that depends on the exit object	2663	# that depends on the exit object
1910		2664
1911	my $rmp = parse_random_map_params $exit->msg;	2665	my $rmp = parse_random_map_params $exit->msg;
…		…
1913	if ($exit->map) {	2667	if ($exit->map) {
1914	$rmp->{region} = $exit->region->name;	2668	$rmp->{region} = $exit->region->name;
1915	$rmp->{origin_map} = $exit->map->path;	2669	$rmp->{origin_map} = $exit->map->path;
1916	$rmp->{origin_x} = $exit->x;	2670	$rmp->{origin_x} = $exit->x;
1917	$rmp->{origin_y} = $exit->y;	2671	$rmp->{origin_y} = $exit->y;
		2672
		2673	$exit->map->touch;
1918	}	2674	}
1919		2675
1920	$rmp->{random_seed} ||= $exit->random_seed;	2676	$rmp->{random_seed} ||= $exit->random_seed;
1921		2677
1922	my $data = cf::to_json $rmp;	2678	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1923	my $md5 = Digest::MD5::md5_hex $data;	2679	my $md5 = Digest::MD5::md5_hex $data;
1924	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2680	my $meta = "$RANDOMDIR/$md5.meta";
1925		2681
1926	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2682	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1927	aio_write $fh, 0, (length $data), $data, 0;	2683	aio_write $fh, 0, (length $data), $data, 0;
1928	undef $fh;	2684	undef $fh;
1929	aio_rename "$meta~", $meta;	2685	aio_rename "$meta~", $meta;
1930		2686
		2687	my $slaying = "?random/$md5";
		2688
		2689	if ($exit->valid) {
1931	$exit->slaying ("?random/$md5");	2690	$exit->slaying ("?random/$md5");
1932	$exit->msg (undef);	2691	$exit->msg (undef);
		2692	}
1933	}	2693	}
1934	}	2694	}
1935		2695
1936	sub cf::object::player::enter_exit {	2696	sub cf::object::player::enter_exit {
1937	my ($self, $exit) = @_;	2697	my ($self, $exit) = @_;
1938		2698
1939	return unless $self->type == cf::PLAYER;	2699	return unless $self->type == cf::PLAYER;
1940		2700
1941	if ($exit->slaying eq "/!") {
1942	#TODO: this should de-fi-ni-te-ly not be a sync-job
1943	cf::sync_job { prepare_random_map $exit };
1944	}
1945
1946	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1947	my $hp = $exit->stats->hp;
1948	my $sp = $exit->stats->sp;
1949
1950	$self->enter_link;	2701	$self->enter_link;
1951		2702
1952	(async {	2703	(async {
1953	$self->deactivate_recursive; # just to be sure	2704	$Coro::current->{desc} = "enter_exit";
		2705
1954	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
1955	$self->goto ($slaying, $hp, $sp);	2721	$self->goto ($map, $x, $y);
1956		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
1957	1;	2727	1
1958	}) {	2728	}) {
1959	$self->message ("Something went wrong deep within the crossfire server. "	2729	$self->message ("Something went wrong deep within the deliantra server. "
1960	. "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. "
1961	. "Please report this to the dungeon master!",	2731	. "Please report this to the dungeon master!",
1962	cf::NDI_UNIQUE | cf::NDI_RED);	2732	cf::NDI_UNIQUE | cf::NDI_RED);
1963		2733
1964	warn "ERROR in enter_exit: $@";	2734	warn "ERROR in enter_exit: $@";
1965	$self->leave_link;	2735	$self->leave_link;
1966	}	2736	}
1967	})->prio (1);	2737	})->prio (1);
…		…
1980		2750
1981	sub cf::client::send_drawinfo {	2751	sub cf::client::send_drawinfo {
1982	my ($self, $text, $flags) = @_;	2752	my ($self, $text, $flags) = @_;
1983		2753
1984	utf8::encode $text;	2754	utf8::encode $text;
1985	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2755	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1986	}	2756	}
1987		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	}
1988		2952
1989	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
1990		2954
1991	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
1992	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>,
1993	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>.
1994		2958
1995	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
1996	reliable at some point in the future.	2960	become reliable at some point in the future.
1997		2961
1998	=cut	2962	=cut
1999		2963
2000	sub cf::client::query {	2964	sub cf::client::query {
2001	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
2009	utf8::encode $text;	2973	utf8::encode $text;
2010	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2011		2975
2012	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
2013	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
2014	}	2980	}
2015		2981
2016	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	},
2017	on_reply => sub {	2988	on_reply => sub {
2018	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
2019		2990
2020	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
2021	# get handled first	2992	# get handled first
…		…
2033	} else {	3004	} else {
2034	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2035	}	3006	}
2036	}	3007	}
2037	},	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	},
2038	);	3035	);
2039		3036
2040	=item $client->async (\&cb)	3037	=item $client->async (\&cb)
2041		3038
2042	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
…		…
2083	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
2084	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
2085		3082
2086	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
2087		3084
2088	$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	));
2089		3090
2090	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
2091		3092
2092	=pod	3093	=pod
2093		3094
2094	The following fucntions and emthods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
2095		3096
2096	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
2097	cf::object::player player	3102	cf::object::player
2098	cf::player peaceful	3103	player
2099	cf::map trigger	3104
		3105	cf::player
		3106	peaceful
		3107
		3108	cf::map
		3109	trigger
2100		3110
2101	=cut	3111	=cut
2102		3112
2103	for (	3113	for (
2104	["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)],
2105	["cf::object::player" => qw(player)],	3117	["cf::object::player" => qw(player)],
2106	["cf::player" => qw(peaceful)],	3118	["cf::player" => qw(peaceful send_msg)],
2107	["cf::map" => qw(trigger)],	3119	["cf::map" => qw(trigger)],
2108	) {	3120	) {
2109	no strict 'refs';	3121	no strict 'refs';
2110	my ($pkg, @funs) = @$_;	3122	my ($pkg, @funs) = @$_;
2111	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2128	my ($code, %vars) = @_;	3140	my ($code, %vars) = @_;
2129		3141
2130	my $qcode = $code;	3142	my $qcode = $code;
2131	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3143	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2132	$qcode =~ s/\n/\\n/g;	3144	$qcode =~ s/\n/\\n/g;
		3145
		3146	%vars = (_dummy => 0) unless %vars;
2133		3147
2134	local $_;	3148	local $_;
2135	local @safe::cf::_safe_eval_args = values %vars;	3149	local @safe::cf::_safe_eval_args = values %vars;
2136		3150
2137	my $eval =	3151	my $eval =
…		…
2180	=back	3194	=back
2181		3195
2182	=cut	3196	=cut
2183		3197
2184	#############################################################################	3198	#############################################################################
2185
2186	=head2 EXTENSION DATABASE SUPPORT
2187
2188	Crossfire maintains a very simple database for extension use. It can
2189	currently store anything that can be serialised using Storable, which
2190	excludes objects.
2191
2192	The parameter C<$family> should best start with the name of the extension
2193	using it, it should be unique.
2194
2195	=over 4
2196
2197	=item $value = cf::db_get $family => $key
2198
2199	Returns a single value from the database.
2200
2201	=item cf::db_put $family => $key => $value
2202
2203	Stores the given C<$value> in the family.
2204
2205	=cut
2206
2207	our $DB;
2208
2209	sub db_init {
2210	unless ($DB) {
2211	$DB = BDB::db_create $DB_ENV;
2212
2213	cf::sync_job {
2214	eval {
2215	$DB->set_flags (BDB::CHKSUM);
2216
2217	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2218	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2219	cf::cleanup "db_open(db): $!" if $!;
2220	};
2221	cf::cleanup "db_open(db): $@" if $@;
2222	};
2223
2224	my $path = cf::localdir . "/database.pst";
2225	if (stat $path) {
2226	cf::sync_job {
2227	my $pst = Storable::retrieve $path;
2228
2229	cf::db_put (board => data => $pst->{board});
2230	cf::db_put (guildrules => data => $pst->{guildrules});
2231	cf::db_put (rent => balance => $pst->{rent}{balance});
2232	BDB::db_env_txn_checkpoint $DB_ENV;
2233
2234	unlink $path;
2235	};
2236	}
2237	}
2238	}
2239
2240	sub db_get($$) {
2241	my $key = "$_[0]/$_[1]";
2242
2243	cf::sync_job {
2244	BDB::db_get $DB, undef, $key, my $data;
2245
2246	$! ? ()
2247	: Compress::LZF::sthaw $data
2248	}
2249	}
2250
2251	sub db_put($$$) {
2252	BDB::dbreq_pri 4;
2253	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2254	}
2255
2256	#############################################################################
2257	# the server's init and main functions	3199	# the server's init and main functions
2258		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
2259	sub load_resources {	3336	sub load_resource_file($) {
2260	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"
2261	or die "unable to load regions file\n";#d#	3352	or die "unable to load regions file\n";
2262	}
2263		3353
2264	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 {
2265	open my $fh, "<:utf8", cf::confdir . "/config"	3387	open my $fh, "<:utf8", "$CONFDIR/config"
2266	or return;	3388	or return;
2267		3389
2268	local $/;	3390	local $/;
2269	*CFG = YAML::Syck::Load <$fh>;	3391	*CFG = YAML::Load <$fh>;
2270		3392
2271	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3393	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2272		3394
2273	$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};
2274	$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};
…		…
2280	};	3402	};
2281	warn $@ if $@;	3403	warn $@ if $@;
2282	}	3404	}
2283	}	3405	}
2284		3406
2285	sub init {	3407	sub pidfile() {
2286	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;
2287	}	3433	}
2288		3434
2289	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
2290	# we must not ever block the main coroutine	3450	# we must not ever block the main coroutine
2291	local $Coro::idle = sub {	3451	local $Coro::idle = sub {
2292	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#
2293	(async {	3453	(async {
2294	Event::one_event;	3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
2295	})->prio (Coro::PRIO_MAX);	3456	})->prio (Coro::PRIO_MAX);
2296	};	3457	};
2297		3458
2298	cfg_load;	3459	evthread_start IO::AIO::poll_fileno;
		3460
		3461	cf::sync_job {
		3462	reload_resources;
		3463	reload_config;
2299	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
2300	load_extensions;	3477	load_extensions;
2301		3478
2302	$TICK_WATCHER->start;	3479	utime time, time, $RUNTIMEFILE;
2303	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;
2304	}	3489	}
2305		3490
2306	#############################################################################	3491	#############################################################################
2307	# initialisation and cleanup	3492	# initialisation and cleanup
2308		3493
2309	# install some emergency cleanup handlers	3494	# install some emergency cleanup handlers
2310	BEGIN {	3495	BEGIN {
		3496	our %SIGWATCHER = ();
2311	for my $signal (qw(INT HUP TERM)) {	3497	for my $signal (qw(INT HUP TERM)) {
2312	Event->signal (	3498	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2313	reentrant => 0,
2314	data => WF_AUTOCANCEL,
2315	signal => $signal,
2316	prio => 0,
2317	cb => sub {
2318	cf::cleanup "SIG$signal";	3499	cf::cleanup "SIG$signal";
2319	},
2320	);	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
2321	}	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 };
2322	}	3588	}
2323		3589
2324	sub emergency_save() {	3590	sub emergency_save() {
2325	my $freeze_guard = cf::freeze_mainloop;	3591	my $freeze_guard = cf::freeze_mainloop;
2326		3592
2327	warn "enter emergency perl save\n";	3593	warn "emergency_perl_save: enter\n";
2328		3594
2329	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
2330	# use a peculiar iteration method to avoid tripping on perl	3601	# use a peculiar iteration method to avoid tripping on perl
2331	# refcount bugs in for. also avoids problems with players	3602	# refcount bugs in for. also avoids problems with players
2332	# and maps saved/destroyed asynchronously.	3603	# and maps saved/destroyed asynchronously.
2333	warn "begin emergency player save\n";	3604	warn "emergency_perl_save: begin player save\n";
2334	for my $login (keys %cf::PLAYER) {	3605	for my $login (keys %cf::PLAYER) {
2335	my $pl = $cf::PLAYER{$login} or next;	3606	my $pl = $cf::PLAYER{$login} or next;
2336	$pl->valid or next;	3607	$pl->valid or next;
		3608	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2337	$pl->save;	3609	$pl->save;
2338	}	3610	}
2339	warn "end emergency player save\n";	3611	warn "emergency_perl_save: end player save\n";
2340		3612
2341	warn "begin emergency map save\n";	3613	warn "emergency_perl_save: begin map save\n";
2342	for my $path (keys %cf::MAP) {	3614	for my $path (keys %cf::MAP) {
2343	my $map = $cf::MAP{$path} or next;	3615	my $map = $cf::MAP{$path} or next;
2344	$map->valid or next;	3616	$map->valid or next;
2345	$map->save;	3617	$map->save;
2346	}	3618	}
2347	warn "end emergency map save\n";	3619	warn "emergency_perl_save: end map save\n";
2348		3620
2349	warn "begin emergency database checkpoint\n";	3621	warn "emergency_perl_save: begin database checkpoint\n";
2350	BDB::db_env_txn_checkpoint $DB_ENV;	3622	BDB::db_env_txn_checkpoint $DB_ENV;
2351	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";
2352	};	3628	};
2353		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
2354	warn "leave emergency perl save\n";	3635	warn "emergency_perl_save: leave\n";
2355	}	3636	}
2356		3637
2357	sub post_cleanup {	3638	sub post_cleanup {
2358	my ($make_core) = @_;	3639	my ($make_core) = @_;
2359		3640
2360	warn Carp::longmess "post_cleanup backtrace"	3641	warn Carp::longmess "post_cleanup backtrace"
2361	if $make_core;	3642	if $make_core;
2362	}
2363		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 $pkg\n";#d#
		3672	}
		3673
2364	sub reload() {	3674	sub do_reload_perl() {
2365	# can/must only be called in main	3675	# can/must only be called in main
2366	if ($Coro::current != $Coro::main) {	3676	if ($Coro::current != $Coro::main) {
2367	warn "can only reload from main coroutine";	3677	warn "can only reload from main coroutine";
2368	return;	3678	return;
2369	}	3679	}
2370		3680
		3681	return if $RELOAD++;
		3682
		3683	my $t1 = EV::time;
		3684
		3685	while ($RELOAD) {
2371	warn "reloading...";	3686	warn "reloading...";
2372		3687
2373	warn "entering sync_job";	3688	warn "entering sync_job";
2374		3689
2375	cf::sync_job {	3690	cf::sync_job {
2376	cf::write_runtime; # external watchdog should not bark	3691	cf::write_runtime_sync; # external watchdog should not bark
2377	cf::emergency_save;	3692	cf::emergency_save;
2378	cf::write_runtime; # external watchdog should not bark	3693	cf::write_runtime_sync; # external watchdog should not bark
2379		3694
2380	warn "syncing database to disk";	3695	warn "syncing database to disk";
2381	BDB::db_env_txn_checkpoint $DB_ENV;	3696	BDB::db_env_txn_checkpoint $DB_ENV;
2382		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 "flushing outstanding aio requests";	3700	warn "flushing outstanding aio requests";
2391	for (;;) {
2392	BDB::flush;
2393	IO::AIO::flush;
2394	Coro::cede;
2395	last unless IO::AIO::nreqs || BDB::nreqs;	3701	while (IO::AIO::nreqs || BDB::nreqs) {
2396	warn "iterate...";	3702	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2397	}
2398
2399	warn "cancelling all extension coros";
2400	$_->cancel for values %EXT_CORO;
2401	%EXT_CORO = ();
2402
2403	warn "removing commands";
2404	%COMMAND = ();
2405
2406	warn "removing ext commands";
2407	%EXTCMD = ();
2408
2409	warn "unloading/nuking all extensions";
2410	for my $pkg (@EXTS) {
2411	warn "... unloading $pkg";
2412
2413	if (my $cb = $pkg->can ("unload")) {
2414	eval {
2415	$cb->($pkg);
2416	1
2417	} or warn "$pkg unloaded, but with errors: $@";
2418	}	3703	}
2419		3704
2420	warn "... nuking $pkg";	3705	warn "cancelling all extension coros";
2421	Symbol::delete_package $pkg;	3706	$_->cancel for values %EXT_CORO;
2422	}	3707	%EXT_CORO = ();
2423		3708
2424	warn "unloading all perl modules loaded from $LIBDIR";	3709	warn "removing commands";
2425	while (my ($k, $v) = each %INC) {	3710	%COMMAND = ();
2426	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2427		3711
		3712	warn "removing ext/exti commands";
		3713	%EXTCMD = ();
		3714	%EXTICMD = ();
		3715
		3716	warn "unloading/nuking all extensions";
		3717	for my $pkg (@EXTS) {
2428	warn "... unloading $k";	3718	warn "... unloading $pkg";
2429	delete $INC{$k};
2430		3719
2431	$k =~ s/\.pm$//;
2432	$k =~ s/\//::/g;
2433
2434	if (my $cb = $k->can ("unload_module")) {	3720	if (my $cb = $pkg->can ("unload")) {
		3721	eval {
2435	$cb->();	3722	$cb->($pkg);
		3723	1
		3724	} or warn "$pkg unloaded, but with errors: $@";
		3725	}
		3726
		3727	warn "... clearing $pkg";
		3728	clear_package $pkg;
2436	}	3729	}
2437		3730
2438	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 $k;
2439	}	3746	}
2440		3747
2441	warn "getting rid of safe::, as good as possible";	3748	warn "getting rid of safe::, as good as possible";
2442	Symbol::delete_package "safe::$_"	3749	clear_package "safe::$_"
2443	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);
2444		3751
2445	warn "unloading cf.pm \"a bit\"";	3752	warn "unloading cf.pm \"a bit\"";
2446	delete $INC{"cf.pm"};	3753	delete $INC{"cf.pm"};
		3754	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2447		3755
2448	# don't, removes xs symbols, too,	3756	# don't, removes xs symbols, too,
2449	# and global variables created in xs	3757	# and global variables created in xs
2450	#Symbol::delete_package __PACKAGE__;	3758	#clear_package __PACKAGE__;
2451		3759
2452	warn "unload completed, starting to reload now";	3760	warn "unload completed, starting to reload now";
2453		3761
2454	warn "reloading cf.pm";	3762	warn "reloading cf.pm";
2455	require cf;	3763	require cf;
2456	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3764	cf::_connect_to_perl_1;
2457		3765
2458	warn "loading config and database again";	3766	warn "loading config and database again";
2459	cf::cfg_load;	3767	cf::reload_config;
2460		3768
2461	warn "loading extensions";	3769	warn "loading extensions";
2462	cf::load_extensions;	3770	cf::load_extensions;
2463		3771
		3772	if ($REATTACH_ON_RELOAD) {
2464	warn "reattaching attachments to objects/players";	3773	warn "reattaching attachments to objects/players";
2465	_global_reattach;	3774	_global_reattach; # objects, sockets
2466	warn "reattaching attachments to maps";	3775	warn "reattaching attachments to maps";
2467	reattach $_ for values %MAP;	3776	reattach $_ for values %MAP;
		3777	warn "reattaching attachments to players";
		3778	reattach $_ for values %PLAYER;
		3779	}
2468		3780
2469	warn "loading reloadable resources";	3781	warn "running post_init jobs";
2470	load_resources;	3782	(pop @POST_INIT)->(1) while @POST_INIT;
2471		3783
2472	warn "leaving sync_job";	3784	warn "leaving sync_job";
2473		3785
2474	1	3786	1
2475	} or do {	3787	} or do {
2476	warn $@;	3788	warn $@;
2477	warn "error while reloading, exiting.";	3789	cf::cleanup "error while reloading, exiting.";
2478	exit 1;	3790	};
		3791
		3792	warn "reloaded";
		3793	--$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	};
2479	};	3813	};
2480		3814	}
2481	warn "reloaded";
2482	};
2483
2484	our $RELOAD_WATCHER; # used only during reload
2485		3815
2486	register_command "reload" => sub {	3816	register_command "reload" => sub {
2487	my ($who, $arg) = @_;	3817	my ($who, $arg) = @_;
2488		3818
2489	if ($who->flag (FLAG_WIZ)) {	3819	if ($who->flag (FLAG_WIZ)) {
2490	$who->message ("reloading server.");	3820	$who->message ("reloading server.");
2491		3821	async {
2492	# doing reload synchronously and two reloads happen back-to-back,	3822	$Coro::current->{desc} = "perl_reload";
2493	# coro crashes during coro_state_free->destroy here.
2494
2495	$RELOAD_WATCHER ||= Event->timer (
2496	reentrant => 0,
2497	after => 0,
2498	data => WF_AUTOCANCEL,
2499	cb => sub {
2500	reload;	3823	reload_perl;
2501	undef $RELOAD_WATCHER;
2502	},
2503	);	3824	};
2504	}	3825	}
2505	};	3826	};
2506		3827
2507	unshift @INC, $LIBDIR;	3828	unshift @INC, $LIBDIR;
2508		3829
2509	my $bug_warning = 0;	3830	my $bug_warning = 0;
2510		3831
2511	$TICK_WATCHER = Event->timer (	3832	our @WAIT_FOR_TICK;
2512	reentrant => 0,	3833	our @WAIT_FOR_TICK_BEGIN;
2513	parked => 1,	3834
2514	prio => 0,	3835	sub wait_for_tick {
2515	at => $NEXT_TICK || $TICK,	3836	return if tick_inhibit || $Coro::current == $Coro::main;
2516	data => WF_AUTOCANCEL,	3837
2517	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	$signal->wait;
		3849	}
		3850
		3851	sub tick {
2518	if ($Coro::current != $Coro::main) {	3852	if ($Coro::current != $Coro::main) {
2519	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2520	unless ++$bug_warning > 10;	3854	unless ++$bug_warning > 10;
2521	return;	3855	return;
2522	}	3856	}
2523		3857
2524	$NOW = Event::time;
2525
2526	cf::server_tick; # one server iteration	3858	cf::server_tick; # one server iteration
2527	$RUNTIME += $TICK;
2528	$NEXT_TICK += $TICK;
2529		3859
2530	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3860	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2531	$NEXT_RUNTIME_WRITE = $NOW + 10;	3861	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2532	Coro::async_pool {	3862	Coro::async_pool {
		3863	$Coro::current->{desc} = "runtime saver";
2533	write_runtime	3864	write_runtime_sync
2534	or warn "ERROR: unable to write runtime file: $!";	3865	or warn "ERROR: unable to write runtime file: $!";
2535	};
2536	}	3866	};
2537
2538
2539	$WAIT_FOR_TICK->broadcast;
2540	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2541
2542	# my $AFTER = Event::time;
2543	# warn $AFTER - $NOW;#d#
2544
2545	# if we are delayed by four ticks or more, skip them all
2546	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2547
2548	$TICK_WATCHER->at ($NEXT_TICK);
2549	$TICK_WATCHER->start;
2550	},	3867	}
2551	);	3868
		3869	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		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#
		3884	}
		3885	}
		3886	}
2552		3887
2553	{	3888	{
2554	BDB::max_poll_time $TICK * 0.1;	3889	# configure BDB
2555	$BDB_POLL_WATCHER = Event->io (	3890
2556	reentrant => 0,
2557	fd => BDB::poll_fileno,
2558	poll => 'r',
2559	prio => 0,
2560	data => WF_AUTOCANCEL,
2561	cb => \&BDB::poll_cb,
2562	);
2563	BDB::min_parallel 8;	3891	BDB::min_parallel 8;
2564		3892	BDB::max_poll_reqs $TICK * 0.1;
2565	BDB::set_sync_prepare {	3893	$AnyEvent::BDB::WATCHER->priority (1);
2566	my $status;
2567	my $current = $Coro::current;
2568	(
2569	sub {
2570	$status = $!;
2571	$current->ready; undef $current;
2572	},
2573	sub {
2574	Coro::schedule while defined $current;
2575	$! = $status;
2576	},
2577	)
2578	};
2579		3894
2580	unless ($DB_ENV) {	3895	unless ($DB_ENV) {
2581	$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);
2582		3902
2583	cf::sync_job {	3903	cf::sync_job {
2584	eval {	3904	eval {
2585	BDB::db_env_open	3905	BDB::db_env_open
2586	$DB_ENV,	3906	$DB_ENV,
2587	$BDB_ENV_DIR,	3907	$BDBDIR,
2588	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3908	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2589	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3909	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2590	0666;	3910	0666;
2591		3911
2592	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3912	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2593
2594	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2595	$DB_ENV->set_lk_detect;
2596	};	3913	};
2597		3914
2598	cf::cleanup "db_env_open(db): $@" if $@;	3915	cf::cleanup "db_env_open(db): $@" if $@;
2599	};	3916	};
2600	}	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	};
2601	}	3928	}
2602		3929
2603	{	3930	{
		3931	# configure IO::AIO
		3932
2604	IO::AIO::min_parallel 8;	3933	IO::AIO::min_parallel 8;
2605
2606	undef $Coro::AIO::WATCHER;
2607	IO::AIO::max_poll_time $TICK * 0.1;	3934	IO::AIO::max_poll_time $TICK * 0.1;
2608	$AIO_POLL_WATCHER = Event->io (	3935	undef $AnyEvent::AIO::WATCHER;
2609	reentrant => 0,
2610	data => WF_AUTOCANCEL,
2611	fd => IO::AIO::poll_fileno,
2612	poll => 'r',
2613	prio => 6,
2614	cb => \&IO::AIO::poll_cb,
2615	);
2616	}	3936	}
		3937
		3938	my $_log_backtrace;
		3939
		3940	sub _log_backtrace {
		3941	my ($msg, @addr) = @_;
		3942
		3943	$msg =~ s/\n//;
		3944
		3945	# limit the # of concurrent backtraces
		3946	if ($_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] $msg\n";
		3976	LOG llevInfo, "[ABT] [suppressed]\n";
		3977	}
		3978	}
		3979
		3980	# load additional modules
		3981	require "cf/$_.pm" for @EXTRA_MODULES;
		3982	cf::_connect_to_perl_2;
2617		3983
2618	END { cf::emergency_save }	3984	END { cf::emergency_save }
2619		3985
2620	1	3986	1
2621		3987

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