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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.481 by root, Sun Oct 11 00:24:35 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 3.3 ();	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 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;	56	use Digest::MD5;
22	use Fcntl;	57	use Fcntl;
		58	use YAML ();
23	use IO::AIO 2.32 ();	59	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
26		63
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
		65
		66	# configure various modules to our taste
		67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		76
		77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		79
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		81
36	our %COMMAND = ();	82	our %COMMAND = ();
37	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
38		84
39	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
43		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	92	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
46		95
47	our $TICK = MAX_TIME * 1e-6;	96	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	97	our $DATADIR = datadir;
		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(!)
		113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	114	our $NEXT_TICK;
50	our $NOW;	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
		119	our $BDB_TRICKLE_WATCHER;
		120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod match mapscript);
51		123
52	our %CFG;	124	our %CFG;
53		125
54	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
56		129
57	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	132	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		133
65	# 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 ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		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 $REALLY_UNLOOP; # never set to true, please :)
		146
68	binmode STDOUT;	147	binmode STDOUT;
69	binmode STDERR;	148	binmode STDERR;
70		149
71	# read virtual server time, if available	150	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
73	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
74	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
75	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
76	}	155	}
77		156
78	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
79	mkdir cf::localdir . "/" . cf::playerdir;	158
80	mkdir cf::localdir . "/" . cf::tmpdir;	159	mkdir $_
81	mkdir cf::localdir . "/" . cf::uniquedir;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir $RANDOM_MAPS;
83		161
84	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
		163
		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::"} };
85		176
86	#############################################################################	177	#############################################################################
87		178
88	=head2 GLOBAL VARIABLES	179	=head2 GLOBAL VARIABLES
89		180
…		…
96	=item $cf::RUNTIME	187	=item $cf::RUNTIME
97		188
98	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
99	every server tick.	190	every server tick.
100		191
101	=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
102		195
103	The perl library directory, where extensions and cf-specific modules can	196	Various directories - "/etc", read-only install directory, perl-library
104	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.
105		200
106	=item $cf::NOW	201	=item $cf::NOW
107		202
108	The time of the last (current) server tick.	203	The time of the last (current) server tick.
109		204
110	=item $cf::TICK	205	=item $cf::TICK
111		206
112	The interval between server ticks, in seconds.	207	The interval between server ticks, in seconds.
113		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
114	=item %cf::CFG	219	=item %cf::CFG
115		220
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	221	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	222	from wherever your confdir points to.
118		223
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	224	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		225
121	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
122	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
123	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.
124	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.
125		241
126	=back	242	=back
127		243
128	=cut	244	=cut
129		245
130	BEGIN {	246	$Coro::State::WARNHOOK = sub {
131	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	247	my $msg = join "", @_;
133	utf8::encode $msg;
134		248
135	$msg .= "\n"	249	$msg .= "\n"
136	unless $msg =~ /\n$/;	250	unless $msg =~ /\n$/;
137		251
		252	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		253
138	LOG llevError, $msg;	254	LOG llevError, $msg;
139	};	255	};
140	}	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	};
141		270
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	271	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	272	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	273	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	274	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@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';
147	@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)
148		278
149	# 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
150	# within the Safe compartment.	280	# within the Safe compartment.
151	for my $pkg (qw(	281	for my $pkg (qw(
152	cf::global cf::attachable	282	cf::global cf::attachable
153	cf::object cf::object::player	283	cf::object cf::object::player
154	cf::client cf::player	284	cf::client cf::player
155	cf::arch cf::living	285	cf::arch cf::living
		286	cf::map cf::mapspace
156	cf::map cf::party cf::region	287	cf::party cf::region
157	)) {	288	)) {
158	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	289	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	290	}
161		291
162	$Event::DIED = sub {	292	$EV::DIED = sub {
163	warn "error in event callback: @_";	293	warn "error in event callback: @_";
164	};	294	};
		295
		296	#############################################################################
165		297
166	=head2 UTILITY FUNCTIONS	298	=head2 UTILITY FUNCTIONS
167		299
168	=over 4	300	=over 4
169		301
…		…
188	$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;
189	$d	321	$d
190	} || "[unable to dump $_[0]: '$@']";	322	} || "[unable to dump $_[0]: '$@']";
191	}	323	}
192		324
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	325	=item $ref = cf::decode_json $json
196		326
197	Converts a JSON string into the corresponding perl data structure.	327	Converts a JSON string into the corresponding perl data structure.
198		328
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	329	=item $json = cf::encode_json $ref
207		330
208	Converts a perl data structure into its JSON representation.	331	Converts a perl data structure into its JSON representation.
209		332
210	=cut	333	=cut
211		334
212	sub to_json($) {	335	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	336
214	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;
215	}	352	}
216		353
217	=item cf::lock_wait $string	354	=item cf::lock_wait $string
218		355
219	Wait until the given lock is available. See cf::lock_acquire.	356	Wait until the given lock is available. See cf::lock_acquire.
220		357
221	=item my $lock = cf::lock_acquire $string	358	=item my $lock = cf::lock_acquire $string
222		359
223	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
224	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,
225	for example when the coroutine gets canceled), the lock is automatically	362	for example when the coroutine gets canceled), the lock is automatically
226	returned.	363	returned.
227		364
		365	Locks are *not* recursive, locking from the same coro twice results in a
		366	deadlocked coro.
		367
228	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
229	uses map_find and cf::map::load uses map_load).	369	uses map_find and cf::map::load uses map_load).
230		370
231	=cut	371	=item $locked = cf::lock_active $string
232		372
233	our %LOCK;	373	Return true if the lock is currently active, i.e. somebody has locked it.
		374
		375	=cut
		376
		377	our $LOCKS = new Coro::SemaphoreSet;
234		378
235	sub lock_wait($) {	379	sub lock_wait($) {
236	my ($key) = @_;	380	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	381	}
244		382
245	sub lock_acquire($) {	383	sub lock_acquire($) {
246	my ($key) = @_;	384	$LOCKS->guard ($_[0])
		385	}
247		386
248	# wait, to be sure we are not locked	387	sub lock_active($) {
249	lock_wait $key;	388	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	389	}
258		390
259	sub freeze_mainloop {	391	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	392	tick_inhibit_inc;
261		393
262	my $guard = Coro::guard { $TICK_WATCHER->start };	394	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	395	}
264	$guard	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($$) {
		405	my ($interval, $cb) = @_;
		406
		407	my $start = rand List::Util::min 180, $interval;
		408
		409	EV::periodic $start, $interval, 0, $cb
		410	}
		411
		412	=item cf::get_slot $time[, $priority[, $name]]
		413
		414	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		415	This call blocks and returns only when you have at least C<$time> seconds
		416	of cpu time till the next tick. The slot is only valid till the next cede.
		417
		418	The optional C<$name> can be used to identify the job to run. It might be
		419	used for statistical purposes and should identify the same time-class.
		420
		421	Useful for short background jobs.
		422
		423	=cut
		424
		425	our @SLOT_QUEUE;
		426	our $SLOT_QUEUE;
		427
		428	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		429	$SLOT_QUEUE = Coro::async {
		430	$Coro::current->desc ("timeslot manager");
		431
		432	my $signal = new Coro::Signal;
		433
		434	while () {
		435	next_job:
		436	my $avail = cf::till_tick;
		437	if ($avail > 0.01) {
		438	for (0 .. $#SLOT_QUEUE) {
		439	if ($SLOT_QUEUE[$_][0] < $avail) {
		440	my $job = splice @SLOT_QUEUE, $_, 1, ();
		441	$job->[2]->send;
		442	Coro::cede;
		443	goto next_job;
		444	}
		445	}
		446	}
		447
		448	if (@SLOT_QUEUE) {
		449	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		450	push @cf::WAIT_FOR_TICK, $signal;
		451	$signal->wait;
		452	} else {
		453	Coro::schedule;
		454	}
		455	}
		456	};
		457
		458	sub get_slot($;$$) {
		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	$sig->wait;
265	}	470	}
266		471
267	=item cf::async { BLOCK }	472	=item cf::async { BLOCK }
268		473
269	Currently the same as Coro::async_pool, meaning you cannot use	474	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		479
275	BEGIN { *async = \&Coro::async_pool }	480	BEGIN { *async = \&Coro::async_pool }
276		481
277	=item cf::sync_job { BLOCK }	482	=item cf::sync_job { BLOCK }
278		483
279	The design of crossfire+ requires that the main coro ($Coro::main) is	484	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	485	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	486	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		487	acceptable.
282		488
283	If it must be done, put the blocking parts into C<sync_job>. This will run	489	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	490	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	491	server will be frozen during this time, so the block should either finish
286	fast or be very important.	492	fast or be very important.
…		…
289		495
290	sub sync_job(&) {	496	sub sync_job(&) {
291	my ($job) = @_;	497	my ($job) = @_;
292		498
293	if ($Coro::current == $Coro::main) {	499	if ($Coro::current == $Coro::main) {
		500	my $time = EV::time;
		501
294	# this is the main coro, too bad, we have to block	502	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	503	# till the operation succeeds, freezing the server :/
296		504
297	# TODO: use suspend/resume instead	505	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	506
299	my $freeze_guard = freeze_mainloop;	507	my $freeze_guard = freeze_mainloop;
300		508
301	my $busy = 1;	509	my $busy = 1;
302	my @res;	510	my @res;
303		511
304	(async {	512	(async {
		513	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	514	@res = eval { $job->() };
306	warn $@ if $@;	515	warn $@ if $@;
307	undef $busy;	516	undef $busy;
308	})->prio (Coro::PRIO_MAX);	517	})->prio (Coro::PRIO_MAX);
309		518
310	while ($busy) {	519	while ($busy) {
311	Coro::cede or Event::one_event;	520	if (Coro::nready) {
		521	Coro::cede_notself;
		522	} else {
		523	EV::loop EV::LOOP_ONESHOT;
312	}	524	}
		525	}
		526
		527	my $time = EV::time - $time;
		528
		529	$TICK_START += $time; # do not account sync jobs to server load
313		530
314	wantarray ? @res : $res[0]	531	wantarray ? @res : $res[0]
315	} else {	532	} else {
316	# we are in another coroutine, how wonderful, everything just works	533	# we are in another coroutine, how wonderful, everything just works
317		534
…		…
337	$EXT_CORO{$coro+0} = $coro;	554	$EXT_CORO{$coro+0} = $coro;
338		555
339	$coro	556	$coro
340	}	557	}
341		558
342	sub write_runtime {	559	=item fork_call { }, $args
343	return unless $TICK_WATCHER->is_active;
344		560
345	my $runtime = cf::localdir . "/runtime";	561	Executes the given code block with the given arguments in a seperate
		562	process, returning the results. Everything must be serialisable with
		563	Coro::Storable. May, of course, block. Note that the executed sub may
		564	never block itself or use any form of event handling.
346		565
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	566	=cut
348	or return;
349		567
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	568	sub fork_call(&@) {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	569	my ($cb, @args) = @_;
352	and return;
353		570
354	aio_fsync $fh	571	# we seemingly have to make a local copy of the whole thing,
355	and return;	572	# otherwise perl prematurely frees the stuff :/
		573	# TODO: investigate and fix (likely this will be rather laborious)
356		574
357	close $fh	575	my @res = Coro::Util::fork_eval {
358	or return;	576	reset_signals;
		577	&$cb
		578	}, @args;
359		579
360	aio_rename "$runtime~", $runtime	580	wantarray ? @res : $res[-1]
361	and return;	581	}
362		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($$) {
		652	my $key = "$_[0]/$_[1]";
		653
		654	cf::sync_job {
		655	BDB::db_get $DB, undef, $key, my $data;
		656
		657	$! ? ()
		658	: $data
363	1	659	}
		660	}
		661
		662	sub db_put($$$) {
		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 });
364	}	746	}
365		747
366	=back	748	=back
367		749
368	=cut	750	=cut
369		751
370	#############################################################################	752	#############################################################################
371		753
372	=head2 ATTACHABLE OBJECTS	754	=head2 ATTACHABLE OBJECTS
373		755
374	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
375	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")
376	to it. All such attachable objects support the following methods.	758	to it. All such attachable objects support the following methods.
377		759
378	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>
379	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
380	crossfire+).	762	Deliantra).
381		763
382	=over 4	764	=over 4
383		765
384	=item $attachable->attach ($attachment, key => $value...)	766	=item $attachable->attach ($attachment, key => $value...)
385		767
…		…
429	=item cf::CLASS::attachment $name, ...	811	=item cf::CLASS::attachment $name, ...
430		812
431	Register an attachment by C<$name> through which attachable objects of the	813	Register an attachment by C<$name> through which attachable objects of the
432	given CLASS can refer to this attachment.	814	given CLASS can refer to this attachment.
433		815
434	Some classes such as crossfire maps and objects can specify attachments	816	Some classes such as deliantra maps and objects can specify attachments
435	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.
436		818
437	These calls expect any number of the following handler/hook descriptions:	819	These calls expect any number of the following handler/hook descriptions:
438		820
439	=over 4	821	=over 4
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	881	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	882	our @CB_MAP = ();
501		883
502	my %attachment;	884	my %attachment;
503		885
		886	sub cf::attachable::thawer_merge {
		887	# simply override everything except _meta
		888	local $_[0]{_meta};
		889	%{$_[0]} = %{$_[1]};
		890	}
		891
504	sub _attach_cb($$$$) {	892	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	893	my ($registry, $event, $prio, $cb) = @_;
506		894
507	use sort 'stable';	895	use sort 'stable';
508		896
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	930	$registry = $CB_TYPE[$object_type] ||= [];
543		931
544	} elsif ($type eq "subtype") {	932	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	933	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	934	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	935	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		936
549	} elsif ($type eq "package") {	937	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	938	my $pkg = shift @arg;
551		939
552	while (my ($name, $id) = each %cb_id) {	940	while (my ($name, $id) = each %cb_id) {
…		…
581	_attach $registry, $klass, @attach;	969	_attach $registry, $klass, @attach;
582	}	970	}
583		971
584	$obj->{$name} = \%arg;	972	$obj->{$name} = \%arg;
585	} else {	973	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	974	warn "object uses attachment '$name' which is not available, postponing.\n";
587	}	975	}
588		976
589	$obj->{_attachment}{$name} = undef;	977	$obj->{_attachment}{$name} = undef;
590	}	978	}
591		979
…		…
593	if (ref $_[0]) {	981	if (ref $_[0]) {
594	_object_attach @_;	982	_object_attach @_;
595	} else {	983	} else {
596	_attach shift->_attach_registry, @_;	984	_attach shift->_attach_registry, @_;
597	}	985	}
		986	_recalc_want;
598	};	987	};
599		988
600	# all those should be optimised	989	# all those should be optimised
601	sub cf::attachable::detach {	990	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	991	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	994	delete $obj->{_attachment}{$name};
606	reattach ($obj);	995	reattach ($obj);
607	} else {	996	} else {
608	Carp::croak "cannot, currently, detach class attachments";	997	Carp::croak "cannot, currently, detach class attachments";
609	}	998	}
		999	_recalc_want;
610	};	1000	};
611		1001
612	sub cf::attachable::attached {	1002	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	1003	my ($obj, $name) = @_;
614		1004
…		…
629	";	1019	";
630	die if $@;	1020	die if $@;
631	}	1021	}
632		1022
633	our $override;	1023	our $override;
634	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?
635		1025
636	sub override {	1026	sub override {
637	$override = 1;	1027	$override = 1;
638	@invoke_results = ();	1028	@INVOKE_RESULTS = (@_);
639	}	1029	}
640		1030
641	sub do_invoke {	1031	sub do_invoke {
642	my $event = shift;	1032	my $event = shift;
643	my $callbacks = shift;	1033	my $callbacks = shift;
644		1034
645	@invoke_results = ();	1035	@INVOKE_RESULTS = ();
646		1036
647	local $override;	1037	local $override;
648		1038
649	for (@$callbacks) {	1039	for (@$callbacks) {
650	eval { &{$_->[1]} };	1040	eval { &{$_->[1]} };
…		…
659	}	1049	}
660		1050
661	0	1051	0
662	}	1052	}
663		1053
664	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1054	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
665		1055
666	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
667		1057
668	Generate an object-specific event with the given arguments.	1058	Generate an object-specific event with the given arguments.
669		1059
670	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
671	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
672	results (if you must, access C<@cf::invoke_results> directly).	1062	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		1063
674	=back	1064	=back
675		1065
676	=cut	1066	=cut
677		1067
678	#############################################################################	1068	#############################################################################
679	# 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	}
680		1112
681	sub reattach {	1113	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1114	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	1115	my ($obj) = @_;
		1116
		1117	# no longer needed after getting rid of delete_package?
		1118	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		1119
685	my $registry = $obj->registry;	1120	my $registry = $obj->registry;
686		1121
687	@$registry = ();	1122	@$registry = ();
688		1123
…		…
703	cf::attachable->attach (	1138	cf::attachable->attach (
704	prio => -1000000,	1139	prio => -1000000,
705	on_instantiate => sub {	1140	on_instantiate => sub {
706	my ($obj, $data) = @_;	1141	my ($obj, $data) = @_;
707		1142
708	$data = from_json $data;	1143	$data = decode_json $data;
709		1144
710	for (@$data) {	1145	for (@$data) {
711	my ($name, $args) = @$_;	1146	my ($name, $args) = @$_;
712		1147
713	$obj->attach ($name, %{$args || {} });	1148	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1164	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1165	my ($filename, $rdata, $objs) = @_;
731		1166
732	sync_job {	1167	sync_job {
733	if (length $$rdata) {	1168	if (length $$rdata) {
		1169	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1170	warn sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1171	$decname, length $$rdata, scalar @$objs;
736		1172
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1173	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1174	aio_chmod $fh, SAVE_MODE;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1175	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		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;
740	aio_fsync $fh;	1178	aio_fsync $fh;
		1179	}
741	close $fh;	1180	aio_close $fh;
742		1181
743	if (@$objs) {	1182	if (@$objs) {
744	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) {
745	chmod SAVE_MODE, $fh;	1184	aio_chmod $fh, SAVE_MODE;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1185	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	1186	aio_write $fh, 0, (length $data), $data, 0;
		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;
748	aio_fsync $fh;	1189	aio_fsync $fh;
		1190	}
749	close $fh;	1191	aio_close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1192	aio_rename "$filename.pst~", "$filename.pst";
751	}	1193	}
752	} else {	1194	} else {
753	aio_unlink "$filename.pst";	1195	aio_unlink "$filename.pst";
754	}	1196	}
755		1197
756	aio_rename "$filename~", $filename;	1198	aio_rename "$filename~", $filename;
		1199
		1200	$filename =~ s%/[^/]+$%%;
		1201	aio_pathsync $filename if $cf::USE_FSYNC;
757	} else {	1202	} else {
758	warn "FATAL: $filename~: $!\n";	1203	warn "unable to save objects: $filename~: $!\n";
759	}	1204	}
760	} else {	1205	} else {
761	aio_unlink $filename;	1206	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1207	aio_unlink "$filename.pst";
763	}	1208	}
764	}	1209	};
765	}	1210	}
766		1211
767	sub object_freezer_as_string {	1212	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1213	my ($rdata, $objs) = @_;
769		1214
…		…
781	or return;	1226	or return;
782		1227
783	unless (aio_stat "$filename.pst") {	1228	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1229	(aio_load "$filename.pst", $av) >= 0
785	or return;	1230	or return;
		1231
786	$av = eval { (Storable::thaw $av)->{objs} };	1232	my $st = eval { Coro::Storable::thaw $av };
		1233	$av = $st->{objs};
787	}	1234	}
788		1235
		1236	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1237	warn sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1238	$decname, length $data, scalar @{$av || []};
		1239
791	return ($data, $av);	1240	($data, $av)
792	}	1241	}
		1242
		1243	=head2 COMMAND CALLBACKS
		1244
		1245	=over 4
		1246
		1247	=cut
793		1248
794	#############################################################################	1249	#############################################################################
795	# command handling &c	1250	# command handling &c
796		1251
797	=item cf::register_command $name => \&callback($ob,$args);	1252	=item cf::register_command $name => \&callback($ob,$args);
…		…
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1265	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1266	}
812		1267
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1268	=item cf::register_extcmd $name => \&callback($pl,$packet);
814		1269
815	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.
816		1275
817	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
818	called.	1277	called.
819		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
820	=cut	1290	=cut
821		1291
822	sub register_extcmd {	1292	sub register_extcmd {
823	my ($name, $cb) = @_;	1293	my ($name, $cb) = @_;
824		1294
825	$EXTCMD{$name} = $cb;	1295	$EXTCMD{$name} = $cb;
826	}	1296	}
		1297
		1298	sub register_exticmd {
		1299	my ($name, $cb) = @_;
		1300
		1301	$EXTICMD{$name} = $cb;
		1302	}
		1303
		1304	use File::Glob ();
827		1305
828	cf::player->attach (	1306	cf::player->attach (
829	on_command => sub {	1307	on_command => sub {
830	my ($pl, $name, $params) = @_;	1308	my ($pl, $name, $params) = @_;
831		1309
…		…
839	cf::override;	1317	cf::override;
840	},	1318	},
841	on_extcmd => sub {	1319	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1320	my ($pl, $buf) = @_;
843		1321
844	my $msg = eval { from_json $buf };	1322	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1323
846	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
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1332	if (my $cb = $EXTCMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1333	@reply = $cb->($pl, @payload);
849	$pl->ext_reply ($msg->{msgid}, %reply);
850	}
851	}	1334	}
		1335
		1336	$pl->ext_reply ($reply, @reply)
		1337	if $reply;
		1338
852	} else {	1339	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1340	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1341	}
855		1342
856	cf::override;	1343	cf::override;
857	},	1344	},
858	);	1345	);
859		1346
		1347	# "readahead" all extensions
860	sub load_extension {	1348	sub cache_extensions {
861	my ($path) = @_;	1349	my $grp = IO::AIO::aio_group;
862		1350
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1351	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
864	my $base = $1;	1352	for (grep /\.ext$/, @{$_[0]}) {
865	my $pkg = $1;	1353	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}	1354	}
888	die $@;
889	}	1355	};
890		1356
891	push @EXTS, $pkg;	1357	$grp
892	}	1358	}
893		1359
894	sub load_extensions {	1360	sub load_extensions {
		1361	cf::sync_job {
		1362	my %todo;
		1363
895	for my $ext (<$LIBDIR/*.ext>) {	1364	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1365	next unless -r $path;
897	eval {	1366
898	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;
899	1	1423	}
900	} or warn "$ext not loaded: $@";	1424
		1425	skip:
		1426	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1427	unless $progress;
		1428	}
901	}	1429	};
902	}	1430	}
903		1431
904	#############################################################################	1432	#############################################################################
905		1433
		1434	=back
		1435
906	=head2 CORE EXTENSIONS	1436	=head2 CORE EXTENSIONS
907		1437
908	Functions and methods that extend core crossfire objects.	1438	Functions and methods that extend core deliantra objects.
909		1439
910	=cut	1440	=cut
911		1441
912	package cf::player;	1442	package cf::player;
913		1443
…		…
915		1445
916	=head3 cf::player	1446	=head3 cf::player
917		1447
918	=over 4	1448	=over 4
919		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
920	=item cf::player::find $login	1464	=item cf::player::find $login
921		1465
922	Returns the given player object, loading it if necessary (might block).	1466	Returns the given player object, loading it if necessary (might block).
923		1467
924	=cut	1468	=cut
925		1469
926	sub playerdir($) {	1470	sub playerdir($) {
927	cf::localdir	1471	"$PLAYERDIR/"
928	. "/"
929	. cf::playerdir
930	. "/"
931	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1472	. (ref $_[0] ? $_[0]->ob->name : $_[0])
932	}	1473	}
933		1474
934	sub path($) {	1475	sub path($) {
935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1476	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936		1477
937	(playerdir $login) . "/$login.pl"	1478	(playerdir $login) . "/playerdata"
938	}	1479	}
939		1480
940	sub find_active($) {	1481	sub find_active($) {
941	$cf::PLAYER{$_[0]}	1482	$cf::PLAYER{$_[0]}
942	and $cf::PLAYER{$_[0]}->active	1483	and $cf::PLAYER{$_[0]}->active
…		…
945		1486
946	sub exists($) {	1487	sub exists($) {
947	my ($login) = @_;	1488	my ($login) = @_;
948		1489
949	$cf::PLAYER{$login}	1490	$cf::PLAYER{$login}
950	or cf::sync_job { !aio_stat $login }	1491	or !aio_stat path $login
951	}	1492	}
952		1493
953	sub find($) {	1494	sub find($) {
954	return $cf::PLAYER{$_[0]} || do {	1495	return $cf::PLAYER{$_[0]} || do {
955	my $login = $_[0];	1496	my $login = $_[0];
956		1497
957	my $guard = cf::lock_acquire "user_find:$login";	1498	my $guard = cf::lock_acquire "user_find:$login";
958		1499
959	$cf::PLAYER{$_[0]} || do {	1500	$cf::PLAYER{$_[0]} || do {
960	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
961	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;
962	$cf::PLAYER{$login} = $pl	1516	$cf::PLAYER{$login} = $pl
963	}	1517	}
964	}	1518	}
965	}	1519	}
966		1520
…		…
975	return if $pl->{deny_save};	1529	return if $pl->{deny_save};
976		1530
977	aio_mkdir playerdir $pl, 0770;	1531	aio_mkdir playerdir $pl, 0770;
978	$pl->{last_save} = $cf::RUNTIME;	1532	$pl->{last_save} = $cf::RUNTIME;
979		1533
		1534	cf::get_slot 0.01;
		1535
980	$pl->save_pl ($path);	1536	$pl->save_pl ($path);
981	Coro::cede;	1537	cf::cede_to_tick;
982	}	1538	}
983		1539
984	sub new($) {	1540	sub new($) {
985	my ($login) = @_;	1541	my ($login) = @_;
986		1542
…		…
992	$cf::PLAYER{$login} = $self;	1548	$cf::PLAYER{$login} = $self;
993		1549
994	$self	1550	$self
995	}	1551	}
996		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
997	=item $pl->quit_character	1563	=item $pl->quit_character
998		1564
999	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
1000	be destroyed. May block for a long time.	1566	be destroyed. May block for a long time.
1001		1567
1002	=cut	1568	=cut
1003		1569
1004	sub quit_character {	1570	sub quit_character {
1005	my ($pl) = @_;	1571	my ($pl) = @_;
1006		1572
		1573	my $name = $pl->ob->name;
		1574
1007	$pl->{deny_save} = 1;	1575	$pl->{deny_save} = 1;
1008	$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
1009		1577
1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1578	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1011	$pl->deactivate;	1579	$pl->deactivate;
		1580	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1581	$pl->ob->check_score;
1012	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1582	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1013	$pl->ns->destroy if $pl->ns;	1583	$pl->ns->destroy if $pl->ns;
1014		1584
1015	my $path = playerdir $pl;	1585	my $path = playerdir $pl;
1016	my $temp = "$path~$cf::RUNTIME~deleting~";	1586	my $temp = "$path~$cf::RUNTIME~deleting~";
1017	aio_rename $path, $temp;	1587	aio_rename $path, $temp;
1018	delete $cf::PLAYER{$pl->ob->name};	1588	delete $cf::PLAYER{$pl->ob->name};
1019	$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
1020	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;
1021	}	1611	}
1022		1612
1023	=item cf::player::list_logins	1613	=item cf::player::list_logins
1024		1614
1025	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
1026	while and may block, so not sync_job-capable, ever.	1616	while and may block, so not sync_job-capable, ever.
1027		1617
1028	=cut	1618	=cut
1029		1619
1030	sub list_logins {	1620	sub list_logins {
1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1621	my $dirs = aio_readdir $PLAYERDIR
1032	or return [];	1622	or return [];
1033		1623
1034	my @logins;	1624	my @logins;
1035		1625
1036	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") {
1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1632	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1038	aio_read $fh, 0, 512, my $buf, 0 or next;	1633	aio_read $fh, 0, 512, my $buf, 0 or next;
1039	$buf !~ /^password -------------$/m or next; # official not-valid tag	1634	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1635	}
1040		1636
1041	utf8::decode $login;	1637	utf8::decode $login;
1042	push @logins, $login;	1638	push @logins, $login;
1043	}	1639	}
1044		1640
…		…
1052		1648
1053	=cut	1649	=cut
1054		1650
1055	sub maps($) {	1651	sub maps($) {
1056	my ($pl) = @_;	1652	my ($pl) = @_;
		1653
		1654	$pl = ref $pl ? $pl->ob->name : $pl;
1057		1655
1058	my $files = aio_readdir playerdir $pl	1656	my $files = aio_readdir playerdir $pl
1059	or return;	1657	or return;
1060		1658
1061	my @paths;	1659	my @paths;
…		…
1063	for (@$files) {	1661	for (@$files) {
1064	utf8::decode $_;	1662	utf8::decode $_;
1065	next if /\.(?:pl|pst)$/;	1663	next if /\.(?:pl|pst)$/;
1066	next unless /^$PATH_SEP/o;	1664	next unless /^$PATH_SEP/o;
1067		1665
1068	s/\.map$//;	1666	push @paths, cf::map::normalise "~$pl/$_";
1069	push @paths, "~" . $pl->ob->name . "/" . $_;
1070	}	1667	}
1071		1668
1072	\@paths	1669	\@paths
1073	}	1670	}
1074		1671
		1672	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1673
		1674	Expand deliantra pod fragments into protocol xml.
		1675
1075	=item $player->ext_reply ($msgid, $msgtype, %msg)	1676	=item $player->ext_reply ($msgid, @msg)
1076		1677
1077	Sends an ext reply to the player.	1678	Sends an ext reply to the player.
1078		1679
1079	=cut	1680	=cut
1080		1681
1081	sub ext_reply($$$%) {	1682	sub ext_reply($$@) {
1082	my ($self, $id, %msg) = @_;	1683	my ($self, $id, @msg) = @_;
1083		1684
1084	$msg{msgid} = $id;	1685	$self->ns->ext_reply ($id, @msg)
1085
1086	$self->send ("ext " . cf::to_json \%msg);
1087	}	1686	}
1088		1687
1089	package cf;	1688	=item $player->ext_msg ($type, @msg)
		1689
		1690	Sends an ext event to the client.
		1691
		1692	=cut
		1693
		1694	sub ext_msg($$@) {
		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	}
1090		1728
1091	=back	1729	=back
1092
1093		1730
1094	=head3 cf::map	1731	=head3 cf::map
1095		1732
1096	=over 4	1733	=over 4
1097		1734
…		…
1101		1738
1102	use Fcntl;	1739	use Fcntl;
1103	use Coro::AIO;	1740	use Coro::AIO;
1104		1741
1105	use overload	1742	use overload
1106	'""' => \&as_string;	1743	'""' => \&as_string,
		1744	fallback => 1;
1107		1745
1108	our $MAX_RESET = 3600;	1746	our $MAX_RESET = 3600;
1109	our $DEFAULT_RESET = 3000;	1747	our $DEFAULT_RESET = 3000;
1110		1748
1111	sub generate_random_map {	1749	sub generate_random_map {
1112	my ($self, $rmp) = @_;	1750	my ($self, $rmp) = @_;
		1751
		1752	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1113		1753
1114	# mit "rum" bekleckern, nicht	1754	# mit "rum" bekleckern, nicht
1115	$self->_create_random_map (	1755	$self->_create_random_map (
1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1756	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1757	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
…		…
1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1765	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126	(cf::region::find $rmp->{region}), $rmp->{custom}	1766	(cf::region::find $rmp->{region}), $rmp->{custom}
1127	)	1767	)
1128	}	1768	}
1129		1769
		1770	=item cf::map->register ($regex, $prio)
		1771
		1772	Register a handler for the map path matching the given regex at the
		1773	givne priority (higher is better, built-in handlers have priority 0, the
		1774	default).
		1775
		1776	=cut
		1777
1130	sub register {	1778	sub register {
1131	my (undef, $regex) = @_;	1779	my (undef, $regex, $prio) = @_;
1132	my $pkg = caller;	1780	my $pkg = caller;
1133		1781
1134	no strict;	1782	no strict;
1135	push @{"$pkg\::ISA"}, __PACKAGE__;	1783	push @{"$pkg\::ISA"}, __PACKAGE__;
1136		1784
1137	$EXT_MAP{$pkg} = qr<$regex>;	1785	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138	}	1786	}
1139		1787
1140	# also paths starting with '/'	1788	# also paths starting with '/'
1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1789	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1790
		1791	sub thawer_merge {
		1792	my ($self, $merge) = @_;
		1793
		1794	# we have to keep some variables in memory intact
		1795	local $self->{path};
		1796	local $self->{load_path};
		1797
		1798	$self->SUPER::thawer_merge ($merge);
		1799	}
1142		1800
1143	sub normalise {	1801	sub normalise {
1144	my ($path, $base) = @_;	1802	my ($path, $base) = @_;
		1803
		1804	$path = "$path"; # make sure its a string
		1805
		1806	$path =~ s/\.map$//;
1145		1807
1146	# map plan:	1808	# map plan:
1147	#	1809	#
1148	# /! non-realised random map exit (special hack!)	1810	# /! non-realised random map exit (special hack!)
1149	# {... are special paths that are not being touched	1811	# {... are special paths that are not being touched
…		…
1177		1839
1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1840	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179		1841
1180	$path = normalise $path, $base;	1842	$path = normalise $path, $base;
1181		1843
1182	for my $pkg (keys %EXT_MAP) {	1844	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183	if ($path =~ $EXT_MAP{$pkg}) {	1845	if ($path =~ $EXT_MAP{$pkg}[1]) {
1184	my $self = bless cf::map::new, $pkg;	1846	my $self = bless cf::map::new, $pkg;
1185	$self->{path} = $path; $self->path ($path);	1847	$self->{path} = $path; $self->path ($path);
1186	$self->init; # pass $1 etc.	1848	$self->init; # pass $1 etc.
1187	return $self;	1849	return $self;
1188	}	1850	}
1189	}	1851	}
1190		1852
1191	Carp::carp "unable to resolve path '$path'.";	1853	Carp::cluck "unable to resolve path '$path' (base '$base').";
1192	()	1854	()
1193	}	1855	}
1194		1856
1195	sub init {	1857	sub init {
1196	my ($self) = @_;	1858	my ($self) = @_;
…		…
1211		1873
1212	# the original (read-only) location	1874	# the original (read-only) location
1213	sub load_path {	1875	sub load_path {
1214	my ($self) = @_;	1876	my ($self) = @_;
1215		1877
1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1878	"$MAPDIR/$self->{path}.map"
1217	}	1879	}
1218		1880
1219	# the temporary/swap location	1881	# the temporary/swap location
1220	sub save_path {	1882	sub save_path {
1221	my ($self) = @_;	1883	my ($self) = @_;
1222		1884
1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1885	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1886	"$TMPDIR/$path.map"
1225	}	1887	}
1226		1888
1227	# the unique path, undef == no special unique path	1889	# the unique path, undef == no special unique path
1228	sub uniq_path {	1890	sub uniq_path {
1229	my ($self) = @_;	1891	my ($self) = @_;
1230		1892
1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1894	"$UNIQUEDIR/$path"
1233	}	1895	}
1234		1896
1235	# and all this just because we cannot iterate over	1897	sub decay_objects {
1236	# all maps in C++...
1237	sub change_all_map_light {
1238	my ($change) = @_;	1898	my ($self) = @_;
1239		1899
1240	$_->change_map_light ($change)	1900	return if $self->{deny_reset};
1241	for grep $_->outdoor, values %cf::MAP;	1901
		1902	$self->do_decay_objects;
1242	}	1903	}
1243		1904
1244	sub unlink_save {	1905	sub unlink_save {
1245	my ($self) = @_;	1906	my ($self) = @_;
1246		1907
1247	utf8::encode (my $save = $self->save_path);	1908	utf8::encode (my $save = $self->save_path);
1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1909	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250	}	1911	}
1251		1912
1252	sub load_header_from($) {	1913	sub load_header_from($) {
1253	my ($self, $path) = @_;	1914	my ($self, $path) = @_;
1254		1915
1255	utf8::encode $path;	1916	utf8::encode $path;
1256	aio_open $path, O_RDONLY, 0	1917	my $f = new_from_file cf::object::thawer $path
1257	or return;	1918	or return;
1258		1919
1259	$self->_load_header ($path)	1920	$self->_load_header ($f)
1260	or return;	1921	or return;
1261		1922
		1923	local $MAP_LOADING{$self->{path}} = $self;
		1924	$f->resolve_delayed_derefs;
		1925
1262	$self->{load_path} = $path;	1926	$self->{load_path} = $path;
1263		1927
1264	1	1928	1
1265	}	1929	}
1266		1930
1267	sub load_orig {	1931	sub load_header_orig {
1268	my ($self) = @_;	1932	my ($self) = @_;
1269		1933
1270	$self->load_header_from ($self->load_path)	1934	$self->load_header_from ($self->load_path)
1271	}	1935	}
1272		1936
1273	sub load_temp {	1937	sub load_header_temp {
1274	my ($self) = @_;	1938	my ($self) = @_;
1275		1939
1276	$self->load_header_from ($self->save_path)	1940	$self->load_header_from ($self->save_path)
		1941	}
		1942
		1943	sub prepare_temp {
		1944	my ($self) = @_;
		1945
		1946	$self->last_access ((delete $self->{last_access})
		1947	|| $cf::RUNTIME); #d#
		1948	# safety
		1949	$self->{instantiate_time} = $cf::RUNTIME
		1950	if $self->{instantiate_time} > $cf::RUNTIME;
		1951	}
		1952
		1953	sub prepare_orig {
		1954	my ($self) = @_;
		1955
		1956	$self->{load_original} = 1;
		1957	$self->{instantiate_time} = $cf::RUNTIME;
		1958	$self->last_access ($cf::RUNTIME);
		1959	$self->instantiate;
1277	}	1960	}
1278		1961
1279	sub load_header {	1962	sub load_header {
1280	my ($self) = @_;	1963	my ($self) = @_;
1281		1964
1282	if ($self->load_temp) {	1965	if ($self->load_header_temp) {
1283	$self->last_access ((delete $self->{last_access})	1966	$self->prepare_temp;
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$self->{instantiate_time} = $cf::RUNTIME
1287	if $self->{instantiate_time} > $cf::RUNTIME;
1288	} else {	1967	} else {
1289	$self->load_orig	1968	$self->load_header_orig
1290	or return;	1969	or return;
1291		1970	$self->prepare_orig;
1292	$self->{load_original} = 1;
1293	$self->{instantiate_time} = $cf::RUNTIME;
1294	$self->last_access ($cf::RUNTIME);
1295	$self->instantiate;
1296	}	1971	}
		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 $self->default_region;
1297		1978
1298	1	1979	1
1299	}	1980	}
1300		1981
1301	sub find;	1982	sub find;
1302	sub find {	1983	sub find {
1303	my ($path, $origin) = @_;	1984	my ($path, $origin) = @_;
1304		1985
1305	$path = normalise $path, $origin && $origin->path;	1986	$path = normalise $path, $origin && $origin->path;
1306		1987
		1988	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1307	cf::lock_wait "map_find:$path";	1989	my $guard2 = cf::lock_acquire "map_find:$path";
1308		1990
1309	$cf::MAP{$path} || do {	1991	$cf::MAP{$path} || do {
1310	my $guard = cf::lock_acquire "map_find:$path";
1311	my $map = new_from_path cf::map $path	1992	my $map = new_from_path cf::map $path
1312	or return;	1993	or return;
1313		1994
1314	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1315		1996
1316	$map->load_header	1997	$map->load_header
1317	or return;	1998	or return;
1318		1999
1319	if ($map->should_reset) {	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2001	# doing this can freeze the server in a sync job, obviously
		2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard2;
		2004	undef $guard1;
1320	$map->reset;	2005	$map->reset;
1321	undef $guard;
1322	$map = find $path	2006	return find $path;
1323	or return;
1324	}	2007	}
1325		2008
1326	$cf::MAP{$path} = $map	2009	$cf::MAP{$path} = $map
1327	}	2010	}
1328	}	2011	}
		2012
		2013	sub pre_load { }
		2014	sub post_load { }
1329		2015
1330	sub load {	2016	sub load {
1331	my ($self) = @_;	2017	my ($self) = @_;
1332		2018
		2019	local $self->{deny_reset} = 1; # loading can take a long time
		2020
1333	my $path = $self->{path};	2021	my $path = $self->{path};
		2022
		2023	{
1334	my $guard = cf::lock_acquire "map_load:$path";	2024	my $guard = cf::lock_acquire "map_data:$path";
1335		2025
		2026	return unless $self->valid;
1336	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1337		2028
1338	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1339		2030
1340	$self->alloc;	2031	$self->alloc;
1341	$self->_load_objects ($self->{load_path}, 1)	2032
		2033	$self->pre_load;
		2034	cf::cede_to_tick;
		2035
		2036	my $f = new_from_file cf::object::thawer $self->{load_path};
		2037	$f->skip_block;
		2038	$self->_load_objects ($f)
1342	or return;	2039	or return;
1343		2040
1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->post_load_original
1345	if delete $self->{load_original};	2042	if delete $self->{load_original};
1346		2043
1347	if (my $uniq = $self->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1348	utf8::encode $uniq;	2045	utf8::encode $uniq;
1349	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1350	$self->clear_unique_items;	2048	$self->clear_unique_items;
1351	$self->_load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1352	}	2052	}
1353	}	2053	}
1354		2054
1355	Coro::cede;	2055	$f->resolve_delayed_derefs;
1356		2056
		2057	cf::cede_to_tick;
1357	# now do the right thing for maps	2058	# now do the right thing for maps
1358	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1359
1360	unless ($self->{deny_activate}) {
1361	$self->decay_objects;
1362	$self->fix_auto_apply;
1363	$self->update_buttons;
1364	Coro::cede;
1365	$self->set_darkness_map;
1366	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1367	unless $self->difficulty;	2061	unless $self->difficulty;
1368	Coro::cede;	2062	cf::cede_to_tick;
		2063
		2064	unless ($self->{deny_activate}) {
		2065	$self->decay_objects;
		2066	$self->fix_auto_apply;
		2067	$self->update_buttons;
		2068	cf::cede_to_tick;
1369	$self->activate;	2069	$self->activate;
1370	}	2070	}
1371		2071
		2072	$self->{last_save} = $cf::RUNTIME;
		2073	$self->last_access ($cf::RUNTIME);
		2074
1372	$self->in_memory (cf::MAP_IN_MEMORY);	2075	$self->in_memory (cf::MAP_ACTIVE);
		2076	}
		2077
		2078	$self->post_load;
1373	}	2079	}
1374		2080
1375	sub customise_for {	2081	sub customise_for {
1376	my ($self, $ob) = @_;	2082	my ($self, $ob) = @_;
1377		2083
1378	return find "~" . $ob->name . "/" . $self->{path}	2084	return find "~" . $ob->name . "/" . $self->{path}
1379	if $self->per_player;	2085	if $self->per_player;
1380		2086
		2087	# return find "?party/" . $ob->name . "/" . $self->{path}
		2088	# if $self->per_party;
		2089
1381	$self	2090	$self
1382	}	2091	}
1383		2092
1384	# find and load all maps in the 3x3 area around a map	2093	# find and load all maps in the 3x3 area around a map
1385	sub load_diag {	2094	sub load_neighbours {
1386	my ($map) = @_;	2095	my ($map) = @_;
1387		2096
1388	my @diag; # diagonal neighbours	2097	my @neigh; # diagonal neighbours
1389		2098
1390	for (0 .. 3) {	2099	for (0 .. 3) {
1391	my $neigh = $map->tile_path ($_)	2100	my $neigh = $map->tile_path ($_)
1392	or next;	2101	or next;
1393	$neigh = find $neigh, $map	2102	$neigh = find $neigh, $map
1394	or next;	2103	or next;
1395	$neigh->load;	2104	$neigh->load;
1396		2105
		2106	push @neigh,
1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2107	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2108	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1399	}	2109	}
1400		2110
1401	for (@diag) {	2111	for (grep defined $_->[0], @neigh) {
		2112	my ($path, $origin) = @$_;
1402	my $neigh = find @$_	2113	my $neigh = find $path, $origin
1403	or next;	2114	or next;
1404	$neigh->load;	2115	$neigh->load;
1405	}	2116	}
1406	}	2117	}
1407		2118
…		…
1412	}	2123	}
1413		2124
1414	sub do_load_sync {	2125	sub do_load_sync {
1415	my ($map) = @_;	2126	my ($map) = @_;
1416		2127
		2128	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2129	if $Coro::current == $Coro::main;
		2130
1417	cf::sync_job { $map->load };	2131	cf::sync_job { $map->load };
1418	}	2132	}
1419		2133
1420	our %MAP_PREFETCH;	2134	our %MAP_PREFETCH;
1421	our $MAP_PREFETCHER = Coro::async {	2135	our $MAP_PREFETCHER = undef;
1422	while () {
1423	for my $path (keys %MAP_PREFETCH) {
1424	my $map = find $path
1425	or next;
1426	$map->load;
1427
1428	delete $MAP_PREFETCH{$path};
1429	}
1430	Coro::schedule;
1431	}
1432	};
1433		2136
1434	sub find_async {	2137	sub find_async {
1435	my ($path, $origin) = @_;	2138	my ($path, $origin, $load) = @_;
1436		2139
1437	$path = normalise $path, $origin && $origin->{path};	2140	$path = normalise $path, $origin && $origin->{path};
1438		2141
1439	if (my $map = $cf::MAP{$path}) {	2142	if (my $map = $cf::MAP{$path}) {
1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2143	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2144	}
		2145
		2146	$MAP_PREFETCH{$path} |= $load;
		2147
		2148	$MAP_PREFETCHER ||= cf::async {
		2149	$Coro::current->{desc} = "map prefetcher";
		2150
		2151	while (%MAP_PREFETCH) {
		2152	while (my ($k, $v) = each %MAP_PREFETCH) {
		2153	if (my $map = find $k) {
		2154	$map->load if $v;
		2155	}
		2156
		2157	delete $MAP_PREFETCH{$k};
		2158	}
		2159	}
		2160	undef $MAP_PREFETCHER;
1441	}	2161	};
1442
1443	$MAP_PREFETCH{$path} = 0;
1444	$MAP_PREFETCHER->ready;	2162	$MAP_PREFETCHER->prio (6);
1445		2163
1446	()	2164	()
1447	}	2165	}
1448		2166
1449	sub save {	2167	sub save {
1450	my ($self) = @_;	2168	my ($self) = @_;
1451		2169
1452	my $lock = cf::lock_acquire "map_data:" . $self->path;	2170	my $lock = cf::lock_acquire "map_data:$self->{path}";
1453		2171
1454	$self->{last_save} = $cf::RUNTIME;	2172	$self->{last_save} = $cf::RUNTIME;
1455		2173
1456	return unless $self->dirty;	2174	return unless $self->dirty;
1457		2175
…		…
1463	return if $self->{deny_save};	2181	return if $self->{deny_save};
1464		2182
1465	local $self->{last_access} = $self->last_access;#d#	2183	local $self->{last_access} = $self->last_access;#d#
1466		2184
1467	cf::async {	2185	cf::async {
		2186	$Coro::current->{desc} = "map player save";
1468	$_->contr->save for $self->players;	2187	$_->contr->save for $self->players;
1469	};	2188	};
		2189
		2190	cf::get_slot 0.02;
1470		2191
1471	if ($uniq) {	2192	if ($uniq) {
1472	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1473	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1474	} else {	2195	} else {
…		…
1480	my ($self) = @_;	2201	my ($self) = @_;
1481		2202
1482	# save first because save cedes	2203	# save first because save cedes
1483	$self->save;	2204	$self->save;
1484		2205
1485	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1486		2207
1487	return if $self->players;	2208	return if $self->players;
1488	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_ACTIVE;
1489	return if $self->{deny_save};	2210	return if $self->{deny_save};
1490		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1491	$self->clear;	2216	$self->clear;
1492	$self->in_memory (cf::MAP_SWAPPED);
1493	}	2217	}
1494		2218
1495	sub reset_at {	2219	sub reset_at {
1496	my ($self) = @_;	2220	my ($self) = @_;
1497		2221
1498	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1499	return 1e99 if $self->isa ("ext::map_per_player");
1500	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1501		2224
1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504		2227
…		…
1509	my ($self) = @_;	2232	my ($self) = @_;
1510		2233
1511	$self->reset_at <= $cf::RUNTIME	2234	$self->reset_at <= $cf::RUNTIME
1512	}	2235	}
1513		2236
1514	sub rename {
1515	my ($self, $new_path) = @_;
1516
1517	normalise $new_path;
1518
1519	$self->unlink_save;
1520
1521	delete $cf::MAP{$self->path};
1522	$self->{path} = $new_path; $self->path ($self->{path});
1523	$cf::MAP{$self->path} = $self;
1524
1525	$self->save;
1526	}
1527
1528	sub reset {	2237	sub reset {
1529	my ($self) = @_;	2238	my ($self) = @_;
1530		2239
1531	my $lock = cf::lock_acquire "map_data:$self->{path}";	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2241
1533	return if $self->players;	2242	return if $self->players;
1534	return if $self->isa ("ext::map_per_player");#d#
1535		2243
1536	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path, "\n";
		2245
		2246	$self->in_memory (cf::MAP_SWAPPED);
		2247
		2248	# need to save uniques path
		2249	unless ($self->{deny_save}) {
		2250	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2251
		2252	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2253	if $uniq;
		2254	}
1537		2255
1538	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1539		2257
1540	$self->in_memory (cf::MAP_SWAPPED);	2258	$self->deactivate;
		2259	$_->clear_links_to ($self) for values %cf::MAP;
1541	$self->clear;	2260	$self->clear;
1542
1543	$_->clear_links_to ($self) for values %cf::MAP;
1544		2261
1545	$self->unlink_save;	2262	$self->unlink_save;
1546	$self->destroy;	2263	$self->destroy;
1547	}	2264	}
1548		2265
1549	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1550		2267
1551	sub nuke {	2268	sub nuke {
1552	my ($self) = @_;	2269	my ($self) = @_;
1553		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
		2274	delete $cf::MAP{$self->path};
		2275
		2276	$self->unlink_save;
		2277
		2278	bless $self, "cf::map";
		2279	delete $self->{deny_reset};
1554	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1555	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1556	$self->rename ("{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2283
		2284	$cf::MAP{$self->path} = $self;
		2285	}
		2286
1557	$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	]
1558	}	2324	}
1559		2325
1560	=item cf::map::unique_maps	2326	=item cf::map::unique_maps
1561		2327
1562	Returns an arrayref of paths of all shared maps that have	2328	Returns an arrayref of paths of all shared maps that have
1563	instantiated unique items. May block.	2329	instantiated unique items. May block.
1564		2330
1565	=cut	2331	=cut
1566		2332
1567	sub unique_maps() {	2333	sub unique_maps() {
1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2334	[
1569	or return;	2335	map {
1570
1571	my @paths;
1572
1573	for (@$files) {
1574	utf8::decode $_;	2336	utf8::decode $_;
1575	next if /\.pst$/;	2337	s/\.map$//; # TODO future compatibility hack
1576	next unless /^$PATH_SEP/o;	2338	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1577		2339	? ()
1578	s/\.map$//;	2340	: normalise $_
1579	push @paths, $_;	2341	} @{ aio_readdir $UNIQUEDIR or [] }
1580	}	2342	]
1581
1582	\@paths
1583	}	2343	}
1584
1585	package cf;
1586		2344
1587	=back	2345	=back
1588		2346
1589	=head3 cf::object	2347	=head3 cf::object
1590		2348
…		…
1594		2352
1595	=over 4	2353	=over 4
1596		2354
1597	=item $ob->inv_recursive	2355	=item $ob->inv_recursive
1598		2356
1599	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.
1600		2359
1601	=cut	2360	=cut
1602		2361
1603	sub inv_recursive_;	2362	sub inv_recursive_;
1604	sub inv_recursive_ {	2363	sub inv_recursive_ {
…		…
1607		2366
1608	sub inv_recursive {	2367	sub inv_recursive {
1609	inv_recursive_ inv $_[0]	2368	inv_recursive_ inv $_[0]
1610	}	2369	}
1611		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
1612	package cf;	2399	package cf;
1613		2400
1614	=back	2401	=back
1615		2402
1616	=head3 cf::object::player	2403	=head3 cf::object::player
…		…
1622	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>
1623	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
1624	dialogue with the given NPC character.	2411	dialogue with the given NPC character.
1625		2412
1626	=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	};
1627		2428
1628	# rough implementation of a future "reply" method that works	2429	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2430	# with dialog boxes.
1630	#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
1631	sub cf::object::player::reply($$$;$) {	2432	sub cf::object::player::reply($$$;$) {
…		…
1633		2434
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2436
1636	if ($self->{record_replies}) {	2437	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2439
1638	} 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 {
1639	$msg = $npc->name . " says: $msg" if $npc;	2448	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2449	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2450	}
1641	}	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 (@_);
1642	}	2462	}
1643		2463
1644	=item $player_object->may ("access")	2464	=item $player_object->may ("access")
1645		2465
1646	Returns wether the given player is authorized to access resource "access"	2466	Returns wether the given player is authorized to access resource "access"
…		…
1659		2479
1660	=item $player_object->enter_link	2480	=item $player_object->enter_link
1661		2481
1662	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}>).
1663		2483
1664	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.
1665	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.
1666		2488
1667	Will never block.	2489	Will never block.
1668		2490
1669	=item $player_object->leave_link ($map, $x, $y)	2491	=item $player_object->leave_link ($map, $x, $y)
1670		2492
…		…
1678	=cut	2500	=cut
1679		2501
1680	sub link_map {	2502	sub link_map {
1681	unless ($LINK_MAP) {	2503	unless ($LINK_MAP) {
1682	$LINK_MAP = cf::map::find "{link}"	2504	$LINK_MAP = cf::map::find "{link}"
1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2505	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684	$LINK_MAP->load;	2506	$LINK_MAP->load;
1685	}	2507	}
1686		2508
1687	$LINK_MAP	2509	$LINK_MAP
1688	}	2510	}
…		…
1693	$self->deactivate_recursive;	2515	$self->deactivate_recursive;
1694		2516
1695	return if UNIVERSAL::isa $self->map, "ext::map_link";	2517	return if UNIVERSAL::isa $self->map, "ext::map_link";
1696		2518
1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698	if $self->map;	2520	if $self->map && $self->map->{path} ne "{link}";
1699		2521
1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2522	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1701	}	2523	}
1702		2524
1703	sub cf::object::player::leave_link {	2525	sub cf::object::player::leave_link {
1704	my ($self, $map, $x, $y) = @_;	2526	my ($self, $map, $x, $y) = @_;
		2527
		2528	return unless $self->contr->active;
1705		2529
1706	my $link_pos = delete $self->{_link_pos};	2530	my $link_pos = delete $self->{_link_pos};
1707		2531
1708	unless ($map) {	2532	unless ($map) {
1709	# restore original map position	2533	# restore original map position
…		…
1723	# use -1 or undef as default coordinates, not 0, 0	2547	# use -1 or undef as default coordinates, not 0, 0
1724	($x, $y) = ($map->enter_x, $map->enter_y)	2548	($x, $y) = ($map->enter_x, $map->enter_y)
1725	if $x <=0 && $y <= 0;	2549	if $x <=0 && $y <= 0;
1726		2550
1727	$map->load;	2551	$map->load;
1728	$map->load_diag;	2552	$map->load_neighbours;
1729		2553
1730	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
1731	$self->activate_recursive;	2560	$self->activate_recursive;
1732	$self->enter_map ($map, $x, $y);
1733	}	2561	}
1734		2562
1735	cf::player->attach (	2563	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1736	on_logout => sub {
1737	my ($pl) = @_;
1738		2564
1739	# abort map switching before logout	2565	Moves the player to the given map-path and coordinates by first freezing
1740	if ($pl->ob->{_link_pos}) {	2566	her, loading and preparing them map, calling the provided $check callback
1741	cf::sync_job {	2567	that has to return the map if sucecssful, and then unfreezes the player on
1742	$pl->ob->leave_link	2568	the new (success) or old (failed) map position. In either case, $done will
1743	};	2569	be called at the end of this process.
1744	}
1745	},
1746	on_login => sub {
1747	my ($pl) = @_;
1748		2570
1749	# try to abort aborted map switching on player login :)	2571	Note that $check will be called with a potentially non-loaded map, so if
1750	# should happen only on crashes	2572	it needs a loaded map it has to call C<< ->load >>.
1751	if ($pl->ob->{_link_pos}) {
1752	$pl->ob->enter_link;
1753	(async {
1754	# we need this sleep as the login has a concurrent enter_exit running
1755	# and this sleep increases chances of the player not ending up in scorn
1756	$pl->ob->reply (undef,
1757	"There was an internal problem at your last logout, "
1758	. "the server will try to bring you to your intended destination in a second.",
1759	cf::NDI_RED);
1760	Coro::Timer::sleep 1;
1761	$pl->ob->leave_link;
1762	})->prio (2);
1763	}
1764	},
1765	);
1766		2573
1767	=item $player_object->goto ($path, $x, $y)
1768
1769	=cut	2574	=cut
		2575
		2576	our $GOTOGEN;
1770		2577
1771	sub cf::object::player::goto {	2578	sub cf::object::player::goto {
1772	my ($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;
1773		2583
1774	$self->enter_link;	2584	$self->enter_link;
1775		2585
1776	(async {	2586	(async {
1777	my $map = cf::map::find $path;	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
		2608	my $map = eval {
		2609	my $map = defined $path ? cf::map::find $path : undef;
		2610
		2611	if ($map) {
1778	$map = $map->customise_for ($self) if $map;	2612	$map = $map->customise_for ($self);
1779		2613	$map = $check->($map) if $check && $map;
1780	# warn "entering ", $map->path, " at ($x, $y)\n"	2614	} else {
1781	# if $map;
1782
1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2615	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2616	}
1784		2617
		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 $@;
		2624	}
		2625
		2626	if ($gen == $self->{_goto_generation}) {
		2627	delete $self->{_goto_generation};
1785	$self->leave_link ($map, $x, $y);	2628	$self->leave_link ($map, $x, $y);
		2629	}
		2630
		2631	$done->() if $done;
1786	})->prio (1);	2632	})->prio (1);
1787	}	2633	}
1788		2634
1789	=item $player_object->enter_exit ($exit_object)	2635	=item $player_object->enter_exit ($exit_object)
1790		2636
…		…
1792		2638
1793	sub parse_random_map_params {	2639	sub parse_random_map_params {
1794	my ($spec) = @_;	2640	my ($spec) = @_;
1795		2641
1796	my $rmp = { # defaults	2642	my $rmp = { # defaults
1797	xsize => 10,	2643	xsize => (cf::rndm 15, 40),
1798	ysize => 10,	2644	ysize => (cf::rndm 15, 40),
		2645	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2646	#layout => string,
1799	};	2647	};
1800		2648
1801	for (split /\n/, $spec) {	2649	for (split /\n/, $spec) {
1802	my ($k, $v) = split /\s+/, $_, 2;	2650	my ($k, $v) = split /\s+/, $_, 2;
1803		2651
…		…
1815	# that depends on the exit object	2663	# that depends on the exit object
1816		2664
1817	my $rmp = parse_random_map_params $exit->msg;	2665	my $rmp = parse_random_map_params $exit->msg;
1818		2666
1819	if ($exit->map) {	2667	if ($exit->map) {
1820	$rmp->{region} = $exit->map->region_name;	2668	$rmp->{region} = $exit->region->name;
1821	$rmp->{origin_map} = $exit->map->path;	2669	$rmp->{origin_map} = $exit->map->path;
1822	$rmp->{origin_x} = $exit->x;	2670	$rmp->{origin_x} = $exit->x;
1823	$rmp->{origin_y} = $exit->y;	2671	$rmp->{origin_y} = $exit->y;
		2672
		2673	$exit->map->touch;
1824	}	2674	}
1825		2675
1826	$rmp->{random_seed} ||= $exit->random_seed;	2676	$rmp->{random_seed} ||= $exit->random_seed;
1827		2677
1828	my $data = cf::to_json $rmp;	2678	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1829	my $md5 = Digest::MD5::md5_hex $data;	2679	my $md5 = Digest::MD5::md5_hex $data;
		2680	my $meta = "$RANDOMDIR/$md5.meta";
1830		2681
1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2682	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832	aio_write $fh, 0, (length $data), $data, 0;	2683	aio_write $fh, 0, (length $data), $data, 0;
		2684	undef $fh;
		2685	aio_rename "$meta~", $meta;
1833		2686
		2687	my $slaying = "?random/$md5";
		2688
		2689	if ($exit->valid) {
1834	$exit->slaying ("?random/$md5");	2690	$exit->slaying ("?random/$md5");
1835	$exit->msg (undef);	2691	$exit->msg (undef);
		2692	}
1836	}	2693	}
1837	}	2694	}
1838		2695
1839	sub cf::object::player::enter_exit {	2696	sub cf::object::player::enter_exit {
1840	my ($self, $exit) = @_;	2697	my ($self, $exit) = @_;
…		…
1842	return unless $self->type == cf::PLAYER;	2699	return unless $self->type == cf::PLAYER;
1843		2700
1844	$self->enter_link;	2701	$self->enter_link;
1845		2702
1846	(async {	2703	(async {
1847	$self->deactivate_recursive; # just to be sure	2704	$Coro::current->{desc} = "enter_exit";
		2705
1848	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
1849	prepare_random_map $exit	2713	prepare_random_map $exit
1850	if $exit->slaying eq "/!";	2714	if $exit->slaying eq "/!";
		2715	}
1851		2716
1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2717	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2718	my $x = $exit->stats->hp;
		2719	my $y = $exit->stats->sp;
1854		2720
		2721	$self->goto ($map, $x, $y);
		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
1855	1;	2727	1
1856	}) {	2728	}) {
1857	$self->message ("Something went wrong deep within the crossfire server. "	2729	$self->message ("Something went wrong deep within the deliantra server. "
1858	. "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. "
1859	. "Please report this to the dungeon master!",	2731	. "Please report this to the dungeon master!",
1860	cf::NDI_UNIQUE | cf::NDI_RED);	2732	cf::NDI_UNIQUE | cf::NDI_RED);
1861		2733
1862	warn "ERROR in enter_exit: $@";	2734	warn "ERROR in enter_exit: $@";
1863	$self->leave_link;	2735	$self->leave_link;
1864	}	2736	}
1865	})->prio (1);	2737	})->prio (1);
…		…
1878		2750
1879	sub cf::client::send_drawinfo {	2751	sub cf::client::send_drawinfo {
1880	my ($self, $text, $flags) = @_;	2752	my ($self, $text, $flags) = @_;
1881		2753
1882	utf8::encode $text;	2754	utf8::encode $text;
1883	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2755	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1884	}	2756	}
1885		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	}
1886		2952
1887	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
1888		2954
1889	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
1890	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>,
1891	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>.
1892		2958
1893	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
1894	reliable at some point in the future.	2960	become reliable at some point in the future.
1895		2961
1896	=cut	2962	=cut
1897		2963
1898	sub cf::client::query {	2964	sub cf::client::query {
1899	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
1907	utf8::encode $text;	2973	utf8::encode $text;
1908	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1909		2975
1910	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
1911	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
1912	}	2980	}
1913		2981
1914	cf::client->attach (	2982	cf::client->attach (
		2983	on_connect => sub {
		2984	my ($ns) = @_;
		2985
		2986	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2987	},
1915	on_reply => sub {	2988	on_reply => sub {
1916	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
1917		2990
1918	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
1919	# get handled first	2992	# get handled first
1920	my $queue = delete $ns->{query_queue}	2993	my $queue = delete $ns->{query_queue}
1921	or return; # be conservative, not sure how that can happen, but we saw a crash here	2994	or return; # be conservative, not sure how that can happen, but we saw a crash here
1922		2995
1923	(shift @$queue)->[1]->($msg);	2996	(shift @$queue)->[1]->($msg);
		2997	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924		2998
1925	push @{ $ns->{query_queue} }, @$queue;	2999	push @{ $ns->{query_queue} }, @$queue;
1926		3000
1927	if (@{ $ns->{query_queue} } == @$queue) {	3001	if (@{ $ns->{query_queue} } == @$queue) {
1928	if (@$queue) {	3002	if (@$queue) {
…		…
1930	} else {	3004	} else {
1931	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1932	}	3006	}
1933	}	3007	}
1934	},	3008	},
		3009	on_exticmd => sub {
		3010	my ($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	},
1935	);	3035	);
1936		3036
1937	=item $client->async (\&cb)	3037	=item $client->async (\&cb)
1938		3038
1939	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
…		…
1980	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
1981	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
1982		3082
1983	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
1984		3084
1985	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3085	$safe->permit_only (Opcode::opset qw(
		3086	:base_core :base_mem :base_orig :base_math
		3087	grepstart grepwhile mapstart mapwhile
		3088	sort time
		3089	));
1986		3090
1987	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
1988		3092
1989	=pod	3093	=pod
1990		3094
1991	The following fucntions and emthods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
1992		3096
1993	cf::object contr pay_amount pay_player map	3097	cf::object
		3098	contr pay_amount pay_player map x y force_find force_add destroy
		3099	insert remove name archname title slaying race decrease split
		3100	value
		3101
1994	cf::object::player player	3102	cf::object::player
1995	cf::player peaceful	3103	player
1996	cf::map trigger	3104
		3105	cf::player
		3106	peaceful
		3107
		3108	cf::map
		3109	trigger
1997		3110
1998	=cut	3111	=cut
1999		3112
2000	for (	3113	for (
2001	["cf::object" => qw(contr pay_amount pay_player map)],	3114	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3115	insert remove inv nrof name archname title slaying race
		3116	decrease split destroy change_exp value msg lore send_msg)],
2002	["cf::object::player" => qw(player)],	3117	["cf::object::player" => qw(player)],
2003	["cf::player" => qw(peaceful)],	3118	["cf::player" => qw(peaceful send_msg)],
2004	["cf::map" => qw(trigger)],	3119	["cf::map" => qw(trigger)],
2005	) {	3120	) {
2006	no strict 'refs';	3121	no strict 'refs';
2007	my ($pkg, @funs) = @$_;	3122	my ($pkg, @funs) = @$_;
2008	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2025	my ($code, %vars) = @_;	3140	my ($code, %vars) = @_;
2026		3141
2027	my $qcode = $code;	3142	my $qcode = $code;
2028	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3143	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2029	$qcode =~ s/\n/\\n/g;	3144	$qcode =~ s/\n/\\n/g;
		3145
		3146	%vars = (_dummy => 0) unless %vars;
2030		3147
2031	local $_;	3148	local $_;
2032	local @safe::cf::_safe_eval_args = values %vars;	3149	local @safe::cf::_safe_eval_args = values %vars;
2033		3150
2034	my $eval =	3151	my $eval =
…		…
2077	=back	3194	=back
2078		3195
2079	=cut	3196	=cut
2080		3197
2081	#############################################################################	3198	#############################################################################
		3199	# the server's init and main functions
2082		3200
2083	=head2 EXTENSION DATABASE SUPPORT	3201	sub load_facedata($) {
		3202	my ($path) = @_;
2084		3203
2085	Crossfire maintains a very simple database for extension use. It can	3204	# HACK to clear player env face cache, we need some signal framework
2086	currently store anything that can be serialised using Storable, which	3205	# for this (global event?)
2087	excludes objects.	3206	%ext::player_env::MUSIC_FACE_CACHE = ();
2088		3207
2089	The parameter C<$family> should best start with the name of the extension	3208	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2090	using it, it should be unique.
2091		3209
2092	=over 4	3210	warn "loading facedata from $path\n";
2093		3211
2094	=item $hashref = cf::db_get $family	3212	my $facedata;
		3213	0 < aio_load $path, $facedata
		3214	or die "$path: $!";
2095		3215
2096	Return a hashref for use by the extension C<$family>, which can be	3216	$facedata = Coro::Storable::thaw $facedata;
2097	modified. After modifications, you have to call C<cf::db_dirty> or
2098	C<cf::db_sync>.
2099		3217
2100	=item $value = cf::db_get $family => $key	3218	$facedata->{version} == 2
		3219	or cf::cleanup "$path: version mismatch, cannot proceed.";
2101		3220
2102	Returns a single value from the database	3221	# patch in the exptable
2103		3222	$facedata->{resource}{"res/exp_table"} = {
2104	=item cf::db_put $family => $hashref	3223	type => FT_RSRC,
2105		3224	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2106	Stores the given family hashref into the database. Updates are delayed, if
2107	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108
2109	=item cf::db_put $family => $key => $value
2110
2111	Stores the given C<$value> in the family hash. Updates are delayed, if you
2112	want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114	=item cf::db_dirty
2115
2116	Marks the database as dirty, to be updated at a later time.
2117
2118	=item cf::db_sync
2119
2120	Immediately write the database to disk I<if it is dirty>.
2121
2122	=cut
2123
2124	our $DB;
2125
2126	{
2127	my $path = cf::localdir . "/database.pst";
2128
2129	sub db_load() {
2130	$DB = stat $path ? Storable::retrieve $path : { };
2131	}
2132
2133	my $pid;
2134
2135	sub db_save() {
2136	waitpid $pid, 0 if $pid;
2137	if (0 == ($pid = fork)) {
2138	$DB->{_meta}{version} = 1;
2139	Storable::nstore $DB, "$path~";
2140	rename "$path~", $path;
2141	cf::_exit 0 if defined $pid;
2142	}
2143	}
2144
2145	my $dirty;
2146
2147	sub db_sync() {
2148	db_save if $dirty;
2149	undef $dirty;
2150	}
2151
2152	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153	db_sync;
2154	});	3225	};
		3226	cf::cede_to_tick;
2155		3227
2156	sub db_dirty() {
2157	$dirty = 1;
2158	$idle->start;
2159	}	3228	{
		3229	my $faces = $facedata->{faceinfo};
2160		3230
2161	sub db_get($;$) {	3231	while (my ($face, $info) = each %$faces) {
2162	@_ >= 2	3232	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2163	? $DB->{$_[0]}{$_[1]}
2164	: ($DB->{$_[0]} ||= { })
2165	}
2166		3233
2167	sub db_put($$;$) {	3234	cf::face::set_visibility $idx, $info->{visibility};
2168	if (@_ >= 3) {	3235	cf::face::set_magicmap $idx, $info->{magicmap};
2169	$DB->{$_[0]}{$_[1]} = $_[2];	3236	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2170	} else {	3237	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2171	$DB->{$_[0]} = $_[1];
2172	}
2173	db_dirty;
2174	}
2175		3238
2176	cf::global->attach (	3239	cf::cede_to_tick;
2177	prio => 10000,
2178	on_cleanup => sub {
2179	db_sync;
2180	},	3240	}
2181	);
2182	}
2183		3241
2184	#############################################################################	3242	while (my ($face, $info) = each %$faces) {
2185	# the server's main()	3243	next unless $info->{smooth};
2186		3244
2187	sub cfg_load {	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
		3336	sub load_resource_file($) {
		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"
		3352	or die "unable to load regions file\n";
		3353
		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 {
2188	open my $fh, "<:utf8", cf::confdir . "/config"	3387	open my $fh, "<:utf8", "$CONFDIR/config"
2189	or return;	3388	or return;
2190		3389
2191	local $/;	3390	local $/;
2192	*CFG = YAML::Syck::Load <$fh>;	3391	*CFG = YAML::Load <$fh>;
2193		3392
2194	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3393	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2195		3394
2196	$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};
2197	$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};
…		…
2203	};	3402	};
2204	warn $@ if $@;	3403	warn $@ if $@;
2205	}	3404	}
2206	}	3405	}
2207		3406
		3407	sub pidfile() {
		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;
		3433	}
		3434
2208	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
2209	# we must not ever block the main coroutine	3450	# we must not ever block the main coroutine
2210	local $Coro::idle = sub {	3451	local $Coro::idle = sub {
2211	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#
2212	async { Event::one_event };	3453	(async {
		3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
		3456	})->prio (Coro::PRIO_MAX);
2213	};	3457	};
2214		3458
2215	cfg_load;	3459	evthread_start IO::AIO::poll_fileno;
2216	db_load;	3460
		3461	cf::sync_job {
		3462	reload_resources;
		3463	reload_config;
		3464	db_init;
		3465
		3466	cf::load_settings;
		3467	cf::load_materials;
		3468	cf::init_uuid;
		3469	cf::init_signals;
		3470	cf::init_commands;
		3471	cf::init_skills;
		3472
		3473	cf::init_beforeplay;
		3474
		3475	atomic;
		3476
2217	load_extensions;	3477	load_extensions;
2218	Event::loop;	3478
		3479	utime time, time, $RUNTIMEFILE;
		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;
2219	}	3489	}
2220		3490
2221	#############################################################################	3491	#############################################################################
2222	# initialisation and cleanup	3492	# initialisation and cleanup
2223		3493
2224	# install some emergency cleanup handlers	3494	# install some emergency cleanup handlers
2225	BEGIN {	3495	BEGIN {
		3496	our %SIGWATCHER = ();
2226	for my $signal (qw(INT HUP TERM)) {	3497	for my $signal (qw(INT HUP TERM)) {
2227	Event->signal (	3498	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2228	data => WF_AUTOCANCEL,
2229	signal => $signal,
2230	cb => sub {
2231	cf::cleanup "SIG$signal";	3499	cf::cleanup "SIG$signal";
2232	},
2233	);	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
2234	}	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 };
2235	}	3588	}
2236		3589
2237	sub emergency_save() {	3590	sub emergency_save() {
2238	my $freeze_guard = cf::freeze_mainloop;	3591	my $freeze_guard = cf::freeze_mainloop;
2239		3592
2240	warn "enter emergency perl save\n";	3593	warn "emergency_perl_save: enter\n";
2241		3594
2242	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
2243	# use a peculiar iteration method to avoid tripping on perl	3601	# use a peculiar iteration method to avoid tripping on perl
2244	# refcount bugs in for. also avoids problems with players	3602	# refcount bugs in for. also avoids problems with players
2245	# and maps saved/destroyed asynchronously.	3603	# and maps saved/destroyed asynchronously.
2246	warn "begin emergency player save\n";	3604	warn "emergency_perl_save: begin player save\n";
2247	for my $login (keys %cf::PLAYER) {	3605	for my $login (keys %cf::PLAYER) {
2248	my $pl = $cf::PLAYER{$login} or next;	3606	my $pl = $cf::PLAYER{$login} or next;
2249	$pl->valid or next;	3607	$pl->valid or next;
		3608	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2250	$pl->save;	3609	$pl->save;
2251	}	3610	}
2252	warn "end emergency player save\n";	3611	warn "emergency_perl_save: end player save\n";
2253		3612
2254	warn "begin emergency map save\n";	3613	warn "emergency_perl_save: begin map save\n";
2255	for my $path (keys %cf::MAP) {	3614	for my $path (keys %cf::MAP) {
2256	my $map = $cf::MAP{$path} or next;	3615	my $map = $cf::MAP{$path} or next;
2257	$map->valid or next;	3616	$map->valid or next;
2258	$map->save;	3617	$map->save;
2259	}	3618	}
2260	warn "end emergency map save\n";	3619	warn "emergency_perl_save: end map save\n";
		3620
		3621	warn "emergency_perl_save: begin database checkpoint\n";
		3622	BDB::db_env_txn_checkpoint $DB_ENV;
		3623	warn "emergency_perl_save: end database checkpoint\n";
		3624
		3625	warn "emergency_perl_save: begin write uuid\n";
		3626	write_uuid_sync 1;
		3627	warn "emergency_perl_save: end write uuid\n";
2261	};	3628	};
2262		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
2263	warn "leave emergency perl save\n";	3635	warn "emergency_perl_save: leave\n";
2264	}	3636	}
2265		3637
		3638	sub post_cleanup {
		3639	my ($make_core) = @_;
		3640
		3641	warn Carp::longmess "post_cleanup backtrace"
		3642	if $make_core;
		3643
		3644	my $fh = pidfile;
		3645	unlink $PIDFILE if <$fh> == $$;
		3646	}
		3647
		3648	# a safer delete_package, copied from Symbol
		3649	sub clear_package($) {
		3650	my $pkg = shift;
		3651
		3652	# expand to full symbol table name if needed
		3653	unless ($pkg =~ /^main::.*::$/) {
		3654	$pkg = "main$pkg" if $pkg =~ /^::/;
		3655	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3656	$pkg .= '::' unless $pkg =~ /::$/;
		3657	}
		3658
		3659	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3660	my $stem_symtab = *{$stem}{HASH};
		3661
		3662	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3663	or return;
		3664
		3665	# clear all symbols
		3666	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3667	for my $name (keys %$leaf_symtab) {
		3668	_gv_clear *{"$pkg$name"};
		3669	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3670	}
		3671	warn "cleared package $pkg\n";#d#
		3672	}
		3673
2266	sub reload() {	3674	sub do_reload_perl() {
2267	# can/must only be called in main	3675	# can/must only be called in main
2268	if ($Coro::current != $Coro::main) {	3676	if ($Coro::current != $Coro::main) {
2269	warn "can only reload from main coroutine\n";	3677	warn "can only reload from main coroutine";
2270	return;	3678	return;
2271	}	3679	}
2272		3680
		3681	return if $RELOAD++;
		3682
		3683	my $t1 = EV::time;
		3684
		3685	while ($RELOAD) {
2273	warn "reloading...";	3686	warn "reloading...";
2274		3687
2275	warn "freezing server";	3688	warn "entering sync_job";
2276	my $guard = freeze_mainloop;	3689
		3690	cf::sync_job {
		3691	cf::write_runtime_sync; # external watchdog should not bark
2277	cf::emergency_save;	3692	cf::emergency_save;
		3693	cf::write_runtime_sync; # external watchdog should not bark
2278		3694
2279	warn "sync database to disk";	3695	warn "syncing database to disk";
2280	cf::db_sync;	3696	BDB::db_env_txn_checkpoint $DB_ENV;
2281	IO::AIO::flush;
2282		3697
2283	eval {
2284	# 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
2285		3699
2286	warn "cancel all watchers";	3700	warn "flushing outstanding aio requests";
2287	for (Event::all_watchers) {	3701	while (IO::AIO::nreqs || BDB::nreqs) {
2288	$_->cancel if $_->data & WF_AUTOCANCEL;	3702	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2289	}
2290
2291	warn "cancel all extension coros";
2292	$_->cancel for values %EXT_CORO;
2293	%EXT_CORO = ();
2294
2295	warn "remove commands";
2296	%COMMAND = ();
2297
2298	warn "remove ext commands";
2299	%EXTCMD = ();
2300
2301	warn "unload/nuke all extensions";
2302	for my $pkg (@EXTS) {
2303	warn "... unloading $pkg";
2304
2305	if (my $cb = $pkg->can ("unload")) {
2306	eval {
2307	$cb->($pkg);
2308	1
2309	} or warn "$pkg unloaded, but with errors: $@";
2310	}	3703	}
2311		3704
		3705	warn "cancelling all extension coros";
		3706	$_->cancel for values %EXT_CORO;
		3707	%EXT_CORO = ();
		3708
		3709	warn "removing commands";
		3710	%COMMAND = ();
		3711
		3712	warn "removing ext/exti commands";
		3713	%EXTCMD = ();
		3714	%EXTICMD = ();
		3715
		3716	warn "unloading/nuking all extensions";
		3717	for my $pkg (@EXTS) {
2312	warn "... nuking $pkg";	3718	warn "... unloading $pkg";
2313	Symbol::delete_package $pkg;
2314	}
2315		3719
2316	warn "unload all perl modules loaded from $LIBDIR";
2317	while (my ($k, $v) = each %INC) {
2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319
2320	warn "removing <$k>";
2321	delete $INC{$k};
2322
2323	$k =~ s/\.pm$//;
2324	$k =~ s/\//::/g;
2325
2326	if (my $cb = $k->can ("unload_module")) {	3720	if (my $cb = $pkg->can ("unload")) {
		3721	eval {
2327	$cb->();	3722	$cb->($pkg);
		3723	1
		3724	} or warn "$pkg unloaded, but with errors: $@";
		3725	}
		3726
		3727	warn "... clearing $pkg";
		3728	clear_package $pkg;
2328	}	3729	}
2329		3730
2330	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 $k;
2331	}	3746	}
2332		3747
2333	warn "get rid of safe::, as good as possible";	3748	warn "getting rid of safe::, as good as possible";
2334	Symbol::delete_package "safe::$_"	3749	clear_package "safe::$_"
2335	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);
2336		3751
2337	warn "unload cf.pm \"a bit\"";	3752	warn "unloading cf.pm \"a bit\"";
2338	delete $INC{"cf.pm"};	3753	delete $INC{"cf.pm"};
		3754	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2339		3755
2340	# don't, removes xs symbols, too,	3756	# don't, removes xs symbols, too,
2341	# and global variables created in xs	3757	# and global variables created in xs
2342	#Symbol::delete_package __PACKAGE__;	3758	#clear_package __PACKAGE__;
2343		3759
		3760	warn "unload completed, starting to reload now";
		3761
2344	warn "reloading cf.pm";	3762	warn "reloading cf.pm";
2345	require cf;	3763	require cf;
2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3764	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2347		3765
2348	warn "load config and database again";	3766	warn "loading config and database again";
2349	cf::cfg_load;	3767	cf::reload_config;
2350	cf::db_load;
2351		3768
2352	warn "load extensions";	3769	warn "loading extensions";
2353	cf::load_extensions;	3770	cf::load_extensions;
2354		3771
		3772	if ($REATTACH_ON_RELOAD) {
2355	warn "reattach attachments to objects/players";	3773	warn "reattaching attachments to objects/players";
2356	_global_reattach;	3774	_global_reattach; # objects, sockets
2357	warn "reattach attachments to maps";	3775	warn "reattaching attachments to maps";
2358	reattach $_ for values %MAP;	3776	reattach $_ for values %MAP;
		3777	warn "reattaching attachments to players";
		3778	reattach $_ for values %PLAYER;
		3779	}
		3780
		3781	warn "running post_init jobs";
		3782	(pop @POST_INIT)->(1) while @POST_INIT;
		3783
		3784	warn "leaving sync_job";
		3785
		3786	1
		3787	} or do {
		3788	warn $@;
		3789	cf::cleanup "error while reloading, exiting.";
		3790	};
		3791
		3792	warn "reloaded";
		3793	--$RELOAD;
		3794	}
		3795
		3796	$t1 = EV::time - $t1;
		3797	warn "reload completed in ${t1}s\n";
		3798	};
		3799
		3800	our $RELOAD_WATCHER; # used only during reload
		3801
		3802	sub reload_perl() {
		3803	# doing reload synchronously and two reloads happen back-to-back,
		3804	# coro crashes during coro_state_free->destroy here.
		3805
		3806	$RELOAD_WATCHER ||= cf::async {
		3807	Coro::AIO::aio_wait cache_extensions;
		3808
		3809	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3810	do_reload_perl;
		3811	undef $RELOAD_WATCHER;
		3812	};
2359	};	3813	};
2360		3814	}
2361	if ($@) {
2362	warn $@;
2363	warn "error while reloading, exiting.";
2364	exit 1;
2365	}
2366
2367	warn "reloaded";
2368	};
2369		3815
2370	register_command "reload" => sub {	3816	register_command "reload" => sub {
2371	my ($who, $arg) = @_;	3817	my ($who, $arg) = @_;
2372		3818
2373	if ($who->flag (FLAG_WIZ)) {	3819	if ($who->flag (FLAG_WIZ)) {
2374	$who->message ("start of reload.");
2375	reload;
2376	$who->message ("end of reload.");	3820	$who->message ("reloading server.");
		3821	async {
		3822	$Coro::current->{desc} = "perl_reload";
		3823	reload_perl;
		3824	};
2377	}	3825	}
2378	};	3826	};
2379		3827
2380	unshift @INC, $LIBDIR;	3828	unshift @INC, $LIBDIR;
2381		3829
2382	$TICK_WATCHER = Event->timer (	3830	my $bug_warning = 0;
2383	reentrant => 0,
2384	prio => 0,
2385	at => $NEXT_TICK || $TICK,
2386	data => WF_AUTOCANCEL,
2387	cb => sub {
2388	$NOW = Event::time;
2389		3831
		3832	our @WAIT_FOR_TICK;
		3833	our @WAIT_FOR_TICK_BEGIN;
		3834
		3835	sub wait_for_tick {
		3836	return if tick_inhibit || $Coro::current == $Coro::main;
		3837
		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	$signal->wait;
		3849	}
		3850
		3851	sub tick {
		3852	if ($Coro::current != $Coro::main) {
		3853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3854	unless ++$bug_warning > 10;
		3855	return;
		3856	}
		3857
2390	cf::server_tick; # one server iteration	3858	cf::server_tick; # one server iteration
2391	$RUNTIME += $TICK;
2392	$NEXT_TICK += $TICK;
2393		3859
2394	$WAIT_FOR_TICK->broadcast;	3860	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3861	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2396		3862	Coro::async_pool {
2397	# if we are delayed by four ticks or more, skip them all	3863	$Coro::current->{desc} = "runtime saver";
2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2399
2400	$TICK_WATCHER->at ($NEXT_TICK);
2401	$TICK_WATCHER->start;
2402	},
2403	);
2404
2405	IO::AIO::max_poll_time $TICK * 0.2;
2406
2407	Event->io (
2408	fd => IO::AIO::poll_fileno,
2409	poll => 'r',
2410	prio => 5,
2411	data => WF_AUTOCANCEL,
2412	cb => \&IO::AIO::poll_cb,
2413	);
2414
2415	Event->timer (
2416	data => WF_AUTOCANCEL,
2417	after => 0,
2418	interval => 10,
2419	cb => sub {
2420	(Coro::unblock_sub {
2421	write_runtime	3864	write_runtime_sync
2422	or warn "ERROR: unable to write runtime file: $!";	3865	or warn "ERROR: unable to write runtime file: $!";
2423	})->();	3866	};
2424	},	3867	}
2425	);	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	}
		3887
		3888	{
		3889	# configure BDB
		3890
		3891	BDB::min_parallel 8;
		3892	BDB::max_poll_reqs $TICK * 0.1;
		3893	$AnyEvent::BDB::WATCHER->priority (1);
		3894
		3895	unless ($DB_ENV) {
		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);
		3902
		3903	cf::sync_job {
		3904	eval {
		3905	BDB::db_env_open
		3906	$DB_ENV,
		3907	$BDBDIR,
		3908	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3909	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3910	0666;
		3911
		3912	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3913	};
		3914
		3915	cf::cleanup "db_env_open(db): $@" if $@;
		3916	};
		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	};
		3928	}
		3929
		3930	{
		3931	# configure IO::AIO
		3932
		3933	IO::AIO::min_parallel 8;
		3934	IO::AIO::max_poll_time $TICK * 0.1;
		3935	undef $AnyEvent::AIO::WATCHER;
		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;
2426		3982
2427	END { cf::emergency_save }	3983	END { cf::emergency_save }
2428		3984
2429	1	3985	1
2430		3986

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